JP2019520949A - Golf club head with optimization features and related methods - Google Patents

Abstract

  Embodiments of golf club heads having optimization features are presented herein, including optimizing the head center of gravity height and depth with respect to head volume and mass. Other examples and related methods are also disclosed herein.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is based on U.S. Provisional Patent Application No. 62 / 365,133, filed July 21, 2016, and U.S. Provisional Patent Application No. 62 / 404,602, filed October 5, 2016. No. 14 / 836,729 filed Aug. 26, 2015, which is a continuation-in-part of US patent application Ser. No. 13 / 826,111 filed Mar. 14, 2013. It is a partial continuation application of US Patent Application No. 15 / 413,684 filed on January 24, 2017, which is a partial continuation application. U.S. Patent Application No. 15 / 413,684 also claims the benefit of U.S. Provisional Patent Application No. 62 / 286,899, filed January 25, 2016. The entire contents of the disclosure set forth above are hereby incorporated by reference in their entirety.

  The present disclosure relates generally to sporting goods, and more particularly to golf club heads with optimization features and related methods.

  Golf club heads often include various features, which can be designed or configured to improve one or more performance characteristics of the golf club head. However, since such various features are often intrinsically working together, adjusting or setting one feature may in itself be disadvantageous as the other features may essentially change. As an example, expanding the hitting face of the golf club to make the impact area larger can disadvantageously change the position of the center of gravity of the golf club. If not configured or designed in a balanced manner, unintended performance may result.

  Based on the above, further progress is made on the characteristics of the golf club and the performance of the golf club is improved by balancing these characteristics with respect to each other.

  The present disclosure can be further understood by reading the following detailed description of the examples of the embodiments in conjunction with the accompanying drawings.

FIG. 1 shows a front view of a golf club head according to the present disclosure. FIG. 2 shows a side cross-sectional view of the golf club head taken along line II-II of FIG. FIG. 3 shows a bottom view of the golf club head of FIGS. 1-2. FIG. 7 is a flowchart of a method that can be used to provide, form and / or manufacture a golf club head in accordance with the present disclosure. FIG. 2A shows a side cross-sectional view of the upper transition boundary of the golf club head taken along line II-II of FIG. FIG. 2C shows a side cross-sectional view of the aft transition boundary of the golf club head taken along line II-II of FIG. FIG. 2 shows a side cross-sectional view of the golf club head taken along line II-II of FIG. FIG. 7 shows a rear perspective view of a golf club head in accordance with the present disclosure; FIG. 9 illustrates a side cross-sectional view of the golf club head taken along line IX-IX of FIG.

  For the sake of simplicity and clarity, the drawings show general aspects of construction, and descriptions and details of well-known features and techniques are omitted so as not to obscure the present disclosure more than necessary. May be Further, each element of the drawings is not necessarily drawn to scale. For example, the dimensions of some of the elements of the drawings may be exaggerated relative to other elements to facilitate understanding of embodiments of the present disclosure.

  In the present specification and claims, the terms "first", "second", "third", "fourth" and the like are used as appropriate to distinguish between similar elements And not necessarily used to describe a particular order or chronological order. As the terms so used are interchangeable under appropriate circumstances, the embodiments described herein may, for example, be practiced in an order different from that described or illustrated herein. You should understand. Moreover, since "comprises" and "have" and all variants thereof are intended to encompass non-exclusive inclusion, processes, methods, systems, articles, devices or apparatuses comprising the recited elements are not necessarily all It is not limited to these elements, it may not be explicitly listed, or it may include other elements inherent to such processes, methods, systems, articles, devices or apparatus .

  In the present specification and claims, the terms “left”, “right”, “front”, “rear”, “upper”, “lower”, “upper”, “lower” and the like, if any, It is used for the purpose of explanation and is not necessarily for describing the permanent relative position. As the terms so used are interchangeable under appropriate circumstances, embodiments of the devices, methods and / or articles of manufacture described herein are, for example, described or illustrated herein. It should be understood that it can also be implemented in different directions.

  The terms "link", "connected", "connected", "connected" and the like should be interpreted broadly, to mechanically or otherwise couple two or more elements. Point to. The connection (whether mechanical or otherwise) may be for any period of time, e.g. permanent or semi-permanent or only momentary.

  Even when there is no term such as "removable" or "removable" near the term such as "connected," it does not mean that the connection is removable.

  As defined herein, two or more elements are "integral" if they are comprised of the same piece of material. As defined herein, two or more elements are "non-integral" when each is composed of different pieces of material.

  In one example, a golf club head can include a head body that includes a head interior and a hosel structure. The inside of the head can be bounded by the head front, the head rear, the head heel, the head toe, the head top and the head sole. The hosel structure may have an inner diameter for receiving a golf club shaft, in which structure the inner diameter may have a hosel shaft. The golf club head extends from the head center of gravity, the head center of gravity to the head heel to head toe, and when the golf club head is at an address position with respect to the ground, a head horizontal axis parallel to the ground, hosel inertia about the hosel axis It can also have a moment and a horizontal moment of inertia about the head horizontal axis. The horizontal moment of inertia can be 39% or more of the hosel moment of inertia.

  In one example, a golf club head can include a head body that includes a head interior and a hosel structure. The inside of the head can be bounded by the head front, the head rear, the head heel, the head toe, the head top and the head sole. The hosel structure may have an inner diameter for receiving a golf club shaft, in which structure the inner diameter may have a hosel shaft. The golf club head has a head center of gravity, a head vertical axis extending from the head upper portion to the head sole portion through the head center of gravity, and perpendicular to the ground when the golf club head is at an address position relative to the ground; It is also possible to have a hosel moment of inertia about the hosel axis and a vertical moment of inertia about the head vertical axis. The horizontal moment of inertia can be 59% or more of the hosel moment of inertia.

  In one embodiment, a method of providing a golf club head can comprise providing a head body comprising a head interior and a hosel structure. The inside of the head can be bounded by the head front, the head rear, the head heel, the head toe, the head top and the head sole. The hosel structure may have an inner diameter for receiving a golf club shaft, in which structure the inner diameter may have a hosel shaft. The method may also comprise coupling the shaft of the golf club to the hosel structure. The head horizontal axis extends from the head heel to the head toe through the center of gravity of the golf club head and can be parallel to the ground when the golf club head is at an address position relative to the ground. The head vertical axis extends from the top of the head to the head sole through the center of gravity of the head and can be perpendicular to the ground when the golf club head is at an address position relative to the ground. In addition, providing the head body can be (a) setting the horizontal moment of inertia about the head horizontal axis to be 39% or more of the hosel moment of inertia about the hosel axis, or (b) about the head vertical axis Setting the vertical moment of inertia of at least 59% of the hosel moment of inertia about the hosel axis.

  In one example, the golf club head can include a head body including a head front, a head rear, a head heel, a head toe, a head sole, a head top, and a hosel structure. The hosel structure has an inner diameter for receiving a shaft of a golf club, in which structure the inner diameter can have a hosel shaft. The golf club head is at the front of the head and has a hitting face center point, a hitting face, a head volume measured in cubic centimeters (cc), and a head volume larger than 420, a head center of gravity And optimization features may also be provided. When the golf club head is at an address position relative to the ground, the head vertical axis extends through the head center of gravity and is perpendicular to the ground, and the head horizontal axis extends through the head center of gravity and is orthogonal to the head vertical axis. ing. The loft surface of the golf club head can contact the striking face center point. The front face of the golf club head can extend parallel to the hosel axis through the striking face center point. The head depth plane can extend through the striking face center point parallel to the head horizontal axis and perpendicular to the loft plane. An axis of center of gravity (CG) height may extend through the head center of gravity and intersect perpendicularly to the head depth plane at a first intersection point. The head CG height of the head center of gravity can be measured between the head center of gravity and the first intersection along the axis of the CG height. The head CG depth of the center of gravity of the head is parallel to the ground between (a) a second intersection point located at the intersection of the front surface and the ground, and (b) a third intersection point located at the intersection of the head vertical axis and the ground. And it can be measured vertically on the front. The optimization properties can be determined by adding (a) the size of the head volume, and (b) the ratio of the head CG depth divided by the absolute value of the head CG height. This optimization property can be 425 or more.

  In one example, the golf club head can include a head body including a head front, a head rear, a head heel, a head toe, a head sole, a head top, and a hosel structure. The hosel structure has an inner diameter for receiving a shaft of a golf club, in which structure the inner diameter can have a hosel shaft. The golf club head may also include a striking face with a striking face center point at the head front and a head center of gravity. When the golf club head is at an address position relative to the ground, the head vertical axis extends through the head center of gravity and is perpendicular to the ground, and the head horizontal axis extends through the head center of gravity and is orthogonal to the head vertical axis. ing. The loft surface of the golf club head can contact the striking face center point. The front face of the golf club head can extend parallel to the hosel axis through the striking face center point. The top surface of the golf club head can extend parallel to the ground through the striking face center point. The head depth plane can extend through the striking face center point parallel to the head horizontal axis and perpendicular to the loft plane. An axis of CG height can extend through the center of gravity of the head and can intersect perpendicularly with the head depth plane at a first intersection point. The head CG height of the head center of gravity can be measured between the head center of gravity and the first intersection along the axis of the CG height. The head CG depth of the center of gravity of the head is parallel to the ground between (a) a second intersection point located at the intersection of the front surface and the ground, and (b) a third intersection point located at the intersection of the head vertical axis and the ground. And it can be measured vertically on the front. The head CG upper boundary can be measured along the head vertical axis between the head center of gravity and the fourth intersection point located at the intersection of the head vertical axis and the top surface. The absolute value of the head CG height can be 2.54 mm or less. The head CG depth can be 40.64 mm or more. In other embodiments, the head CG depth can be greater than about 41 mm and less than about 102 mm. In further embodiments, the head CG depth is about 42 mm, about 43 mm, about 44 mm, about 45 mm, about 46 mm, about 47 mm, about 48 mm, about 49 mm, about 50 mm, about 55 mm, about 60 mm, about 65 mm, or about 70 mm It can be larger than that. The head CG upper boundary can be about 0 mm to about 30 mm. In other embodiments, the head CG upper boundary may be less than about 8 mm, about 9 mm, about 10 mm, about 11 mm, about 12 mm, about 13 mm, about 14 mm, about 15 mm, about 20 mm, or about 25 mm.

  In one embodiment, a method of providing a golf club head can include providing a head body comprising a head front, a head rear, a head heel, a head toe, a head sole, a head top, and a hosel structure. . The hosel structure has an inner diameter for receiving a golf club shaft, the inner diameter having a hosel shaft. The method may also include coupling the striking face to the front of the head and setting the optimization characteristics of the golf club head. The striking face has a striking face center point. The head capacity of a golf club head can be measured in cubic centimeters (cc) and can be greater than 420 in size. When the golf club head is at an address position relative to the ground, the head vertical axis can extend through the center of gravity of the head and be perpendicular to the ground. The head horizontal axis may extend through the center of gravity of the head and be orthogonal to the head vertical axis. The loft surface of the golf club head can contact the striking face center point. The front face of the golf club head can extend parallel to the hosel axis through the striking face center point. The head depth plane can extend through the striking face center point parallel to the head horizontal axis and perpendicular to the loft plane. An axis of CG height can extend through the center of gravity of the head and can intersect perpendicularly with the head depth plane at a first intersection point. The head CG height of the head center of gravity can be measured between the head center of gravity and the first intersection along the axis of the CG height. The head CG depth of the center of gravity of the head is parallel to the ground between (a) a second intersection point located at the intersection of the front surface and the ground, and (b) a third intersection point located at the intersection of the head vertical axis and the ground. And it can be measured vertically on the front. The optimization characteristics can be set by adding (a) the size of the head capacitance, and (b) the ratio of the head CG depth divided by the absolute value of the CG height of the head, where the above optimization The characteristic can be 425 or more.

  In one example, the golf club head can comprise at least one of a head body, a face portion and a head center of gravity, and a first performance characteristic or a second performance characteristic. The head body can include a head front, a head rear, a head heel, a head toe, a head sole, a head top, and a hosel structure. The hosel structure has an inner diameter for receiving a shaft of a golf club, the inner diameter having a hosel shaft. The face portion may be at the front of the head and may have a face height limited by the striking face center point, the striking face edge, and the striking face edge. When the golf club head is at an address position relative to the ground, the head vertical axis extends through the head center of gravity and is perpendicular to the ground, and the head horizontal axis extends through the head center of gravity and is orthogonal to the head vertical axis. ing. The loft surface of the golf club head can contact the striking face center point. The front face of the golf club head can extend parallel to the hosel axis through the striking face center point. The head depth plane can extend through the striking face center point parallel to the head horizontal axis and perpendicular to the loft plane. An axis of CG height can extend through the center of gravity of the head and can intersect perpendicularly with the head depth plane at a first intersection point. The head CG height of the head center of gravity can be measured between the head center of gravity and the first intersection along the axis of the CG height. The head CG depth of the center of gravity of the head is parallel to the ground between (a) a second intersection point located at the intersection of the front surface and the ground, and (b) a third intersection point located at the intersection of the head vertical axis and the ground. And it can be measured vertically on the front. The face height can be from about 33 mm to about 71 mm, measured parallel to the loft plane. The first performance characteristic may have a head CG height of about 5.08 mm or less. The second performance characteristic may have a CG performance ratio of 0.56 or less, determined by (a) subtracting the face height from 76.2 mm and (b) dividing by the head CG depth.

  In one example, a golf club head can include a head body, a face portion and a head center of gravity. The head body can include a head front, a head rear, a head heel, a head toe, a head sole, a head top, and a hosel structure. The hosel structure has an inner diameter for receiving a shaft of a golf club, the inner diameter having a hosel shaft. The hosel structure can have a hosel diameter. The face portion may be coupled to the head front and may comprise a striking face having a striking face center point, a striking face edge and a face height. When the golf club head is at an address position relative to the ground, the head vertical axis extends through the head center of gravity and is perpendicular to the ground, and the head horizontal axis extends through the head center of gravity and is orthogonal to the head vertical axis. ing. The loft surface of the golf club head can contact the striking face center point. The front face of the golf club head can extend parallel to the hosel axis through the striking face center point. The top surface of the golf club can extend parallel to the ground through the striking face center point. The head depth plane can extend through the striking face center point parallel to the head horizontal axis and perpendicular to the loft plane. An axis of CG height can extend through the center of gravity of the head and can intersect perpendicularly with the head depth plane at a first intersection point. The head CG height of the head center of gravity can be measured between the head center of gravity and the first intersection along the axis of the CG height. The head CG depth of the center of gravity of the head is parallel to the ground between (a) a second intersection point located at the intersection of the front surface and the ground, and (b) a third intersection point located at the intersection of the head vertical axis and the ground. And it can be measured vertically on the front. The head CG upper boundary can be measured along the head vertical axis between the head center of gravity and the fourth intersection point located at the intersection of the head vertical axis and the top surface. The face height is defined by the striking face edge and can be from about 33 mm to about 71 mm measured parallel to the loft plane. The CG performance ratio between (a) 76.2 mm minus the face height and (b) head CG depth is 0.56 or less. The head body can be configured with a driver type body. The head capacity of the golf club head can be about 420 cc to about 470 cc. The golf club head head weight can be about 185 grams to about 225 grams. The head CG height can be about 0 mm to about 3.18 mm. The head CG depth can be about 25 mm to about 102 mm. In other embodiments, the head CG depth can be greater than about 41 mm and less than about 102 mm. In further embodiments, the head CG depth is about 42 mm, about 43 mm, about 44 mm, about 45 mm, about 46 mm, about 47 mm, about 48 mm, about 49 mm, about 50 mm, about 55 mm, about 60 mm, about 65 mm, or about 70 mm It can be larger than that. The head CG upper boundary can be about 0 mm to about 30 mm. In other embodiments, the head CG upper boundary may be less than about 8 mm, about 9 mm, about 10 mm, about 11 mm, about 12 mm, about 13 mm, about 14 mm, about 15 mm, about 20 mm, or about 25 mm. The head body can include a weight structure disposed near the sole portion and the rear portion of the head body.

  In one embodiment, a method of providing a golf club head comprises providing a head body including a head front, a head rear, a head heel, a head toe, a head sole, a head top, and a hosel structure. it can. The hosel structure has an inner diameter for receiving a shaft of a golf club, the inner diameter having a hosel shaft. The method may also include coupling a face portion to the front of the head, the face portion having a striking face center point, a striking face edge, and a striking height limited by the striking face edge. It has a face. The method further comprises setting at least one of a first performance characteristic of the golf club head or a second performance characteristic of the golf club head. When the golf club head is at an address position relative to the ground, the head vertical axis extends through the head center of gravity of the golf club head and is perpendicular to the ground, and the head horizontal axis extends through the head center of gravity and the head vertical It is orthogonal to the axis. The loft surface of the golf club head can contact the striking face center point. The front face of the golf club head can extend parallel to the hosel axis through the striking face center point. The head depth plane can extend through the striking face center point parallel to the head horizontal axis and perpendicular to the loft plane. An axis of CG height can extend through the center of gravity of the head and can intersect perpendicularly with the head depth plane at a first intersection point. The head CG height of the head center of gravity can be measured between the head center of gravity and the first intersection along the axis of the CG height. The head CG depth of the center of gravity of the head is parallel to the ground between (a) a second intersection point located at the intersection of the front surface and the ground, and (b) a third intersection point located at the intersection of the head vertical axis and the ground. And it can be measured vertically on the front. The face height can be from about 33 mm to about 71 mm, measured parallel to the loft plane. The first performance characteristic may have a head CG height of about 5.08 mm or less. The second performance characteristic may have a CG performance ratio of 0.56 or less, determined by (a) subtracting the face height from 76.2 mm and (b) dividing by the head CG depth.

  Other examples and embodiments are further disclosed herein. Such examples and embodiments may be found in the drawings, the claims and / or the description.

  Turning to the drawings, FIG. 1 shows a front view of a golf club head 1000, which comprises a head body 1100 and a face portion 1200. The face portion 1200 includes a striking face 1210. FIG. 2 illustrates a side cross-sectional view of the golf club head 1000 taken along line II-II of FIG. FIG. 3 shows a bottom view of the golf club head 1000 of the golf club head 1000. FIGS. 1-3 depict a golf club head 1000 at an address position relative to the ground 1010. In these figures, for the front view of the golf club head 1000 (FIG. 1), the hosel axis 1710 is at an angle of 60 degrees to the ground 1010 and for the side view of the golf club head 1000 (FIG. 2) The axis 1710 is substantially perpendicular to the ground 1010.

  In the present embodiment, the head main body 1100 and the face portion 1200 are made of, for example, different pieces of material joined by a welding method. However, in other examples, the face portion 1200 may be one or more of the head body 1100, such as head front 1110, head top 1120, head sole 1130, head heel 1140, head toe 1150 and / or head back 2160. It may consist of a single piece of material with each part. The head front surface 1160 of the golf club head 1000 includes at least a portion of a striking face 1210, a face portion 1200 and a head front 1110. In some embodiments, the head front surface 1160 can also include at least a portion of the head sole portion 1130. In the same or different embodiments, head front 1110 can include striking face 1210 and / or face portion 1200.

  The face portion 1200 includes a striking face 1210 having a striking face center point 1211, a striking face edge 1212 and a face height 1213. The striking face center point 1211 is located at the geometric center of the striking face edge 1212 of the present example and at the midpoint of the face height 1213. In the same or other example, the striking face center point 1211 can be centered with respect to the designed impact area 1250, which may be defined by the extent of the groove 1259 of the striking face 1210. it can. As another approach, the striking face center point 1211 can be deployed according to the rules of a golf governing body such as the United States Golf Association (USGA). For example, the striking face center point 1211 is a procedure for measuring the flexibility of a golf club head according to the USGA ("Flexibility Procedure") (USGA-TPX3004, Rev. 1.0.0, May 1, 2008) Determined according to section 6.1 (available at http://www.usga.org/equipment/testing/protocols/Procedure-For-Measuring-The-Flexibility-Of-A-Golf-Club-Head/) it can.

  The golf club head 1000 includes a loft surface 2270 (FIG. 2), which is at least tangent to the striking face center point 1211 of the striking face 1210. The face height 1213 can be measured parallel to the loft surface 2270 between the striking face upper end 1215 and the striking face lower end 1216 of the striking face edge 1212 and in this or other examples is about 33 millimeters (mm) to about It can be about 71 mm.

  The striking face edge 1212 includes a striking face upper end 1215 and a striking face lower end 1216 that define a face height 1213, but it is not necessary to bound the entire face portion 1200. For example, as can be appreciated from FIG. 1, striking face 1210 is bounded by striking face edge 1212 but is only a portion of face portion 1200. In some instances, striking face 1210 can have a roll radius and / or a bulge radius. The striking face edge 1212 can be defined along a transition boundary where the contour of the face portion 1200 is away from the roll radius and / or bulge radius of the striking face 1210. For example, FIG. 2 includes an enlarged view of a portion of the upper transition boundary of the golf club head 1000, highlighting the vertical roll radius 2170 extending along the striking face 1210 and the head front surface 1160 being a vertical roll. At the upper transition boundary away from radius 2170, it shows how the upper end 1215 of the striking face is positioned. FIG. 2 also includes an enlarged view of a portion of the lower transition boundary of the golf club head 1000, highlighting the vertical roll radius 2170 extending vertically along the striking face 1210, with the head front surface 1160 being a vertical roll. It shows how the lower end 1216 of the striking face is located at the lower transition boundary away from the radius 2170.

  In the same or other embodiments, the striking face edge 1212 can be defined relative to the end of the striking plate, including the striking face. For example, the face portion 1200 includes a striking plate 1220 where the striking face 1210 forms the exterior surface of the striking plate 1220 and the striking plate 1220 extends along the striking plate end 1221 to the head front 1110. It is joined. In the present example, striking plate end 1221 defines at least a portion of striking face edge 1212. The portion thus defined includes the upper and lower portions of the striking face edge 1212, with the striking face upper end 1215 and the striking face lower end 1216 respectively located to provide a face height 1213. Define. Other examples than the above are possible, in which case the striking plate end of the striking plate can define most or all of the striking face edge of the striking face.

  As shown in FIG. 2, the golf club head 1000 also includes a head center of gravity (CG) 2500, a head depth surface 2310, and an axis 2320 of CG height. In the figure, the head depth plane 2310 extends through the striking face center point 1211 and is orthogonal to the loft plane 2270, and the CG height axis 2320 extends through the head center of gravity 2500 and at the intersection point 2801 the head depth plane. It intersects vertically with 2310. The golf club head 1000 also includes an upper surface 2330 extending parallel to the ground 1010 through the striking face center point 1211.

  The head center of gravity 2500 comprises a CG height 2520 and a CG depth 2510, which position the head center of gravity 2500 relative to the golf club head 1000. In this example, the CG height 2520 can be measured between the head center of gravity 2500 and the intersection point 2801 along the axis 2320 of the CG height. The CG depth 2510 can be measured parallel to the ground 1010 and between the intersection 2802 and the intersection 2803 as can be understood from FIG. In the present example, the intersection point 2802 is defined by the intersection of the ground 1010 and the front face 2280, where the front face 2280 extends through the striking face center point 1211 and is parallel to the hosel axis 1710 and further golf club When the head 1000 is at the address position, it is perpendicular to the ground 1010. In addition, the intersection point 2803 is defined by the intersection of the ground 1010 and the head vertical axis 1610, where the head vertical axis 1610 extends through the head center of gravity 2500 and when the golf club head 1000 is in the address position. Is perpendicular to the ground 1010. The head centroid 2500 may also be positioned relative to the ground 1010, in which case the head CG vertical distance 2530 of the head centroid 2500 may be measured along the head vertical axis 1610 between the weight center 2750 and the ground 1010. Can. The head center of gravity 2500 is also positioned relative to the head CG upper boundary 2540, but here, along the head vertical axis 1610, the fourth center of gravity is located at the intersection of the head center of gravity 2500 and the head vertical axis 1610 with the top surface 2330. It can be measured between the point of intersection 2805 of The head CG upper boundary 2540 may be a positive value when measured above the top surface 2330 and a negative value when measured below the top surface 2330.

  The head body 1100 of the golf club head 1000 also includes a hosel structure 1217 (FIG. 1) and a hosel shaft 1710 extending along the center of the inner diameter 1217 of the hosel structure. In this example, the hosel coupling mechanism of the golf club head 1000 comprises a hosel structure 1217 and a shaft sleeve 1411, which may couple the shaft sleeve 1411 to the end of the golf shaft 1410. The shaft sleeve 1411 can be coupled to the hosel structure 1217 in multiple configurations. Thereby, the golf shaft 1410 can be fixed to the hosel structure 1217 at a plurality of angles with respect to the hosel shaft 1710. However, other examples are possible, in which case the shaft 1410 can be non-adjustablely fixed to the hosel structure 1217.

  Golf club heads according to the present disclosure can be configured to exhibit one or more optimization characteristics that optimize or balance its performance. For example, one property of a golf club head that is to be optimized by the present design is that of face height and / or face size. Maximizing the face height and / or face size of a golf club head can provide several advantages. These advantages include, for example, an increase in the impact area with the object in the striking face to provide a more acceptable club head, and with such a club head, it is possible to deviate from the striking face center point. Good results are also obtained for hit golf shots. In addition, the height and / or size of the striking face can be made higher to transfer energy to the golf ball upon impact with the golf ball. Thus, the characteristic time or "spring effect" of the golf club head may be increased to achieve longer distance golf shots. In some cases, in order to achieve the property time limit value determined by the golf management group (such as the property time limit value 239 microseconds (μs) determined by the USGA in its own “Flexibility Procedure”) , The height or size of the striking face may be increased.

  However, increasing the face height and / or face size indiscriminately affects the performance of other areas (such as the launch angle of the golf ball upon impact with the striking face, ball spin and / or ball speed, etc.) there is a possibility. For example, increasing the face height and / or face size may cause the CG depth between the golf club head's center of gravity and the striking face center point to be shallower as the center of gravity moves forward. As a result, the dynamic loft of the golf club head is reduced, thereby reducing the launch angle of the golf ball. In another example, increasing the face height and / or the face size may raise the CG height between the center of gravity and the head depth surface and lift the center of gravity away from the sole of the golf club head. As a result, the gear effect between the striking face and the golf ball is suppressed, so the golf club head is less likely to reduce the backspin amount of the golf ball generated at the time of impact, and the ball is affected by this backspin. The flying distance of will be shortened.

In consideration of the above, the face height or face size of the golf club head needs to be balanced with respect to the center of gravity position. With respect to the golf club head 1000, the striking face 1210 may be enlarged to increase the face size and / or face height 1213 to increase the impact area and transfer more energy to the golf ball 2900. I have to. In particular, golf club head 1000 is configured to allow face height 1213 to be about 33 mm to about 71 mm in order to increase the impact area and to transfer more energy upon impact with golf ball 2900. It is possible. In some examples, the area of the striking face 1210 (including the increased face area) can be about 23.6 square centimeters (cm ² ) to about 45.2 cm ² .

Despite increasing face size and / or face height 1213 as described above, golf club head 1000 still raises CG height 2520 towards head top 1120 and / or the head depth plane Limiting away from 2310 too much. For example, the golf club head 1000 has a first optimization feature that satisfies the following relationship 1:
| CG height ₂₅₂₀ | ≦ 5.08 mm [Relation 1]
An example is also possible in which the CG height 2520 can be from about 0 mm to the limit value of 5.08 mm in Relation 1. In other examples, the CG height 2520 can be up to about 4.45 mm, 3.81 mm or 3.18 mm. In some embodiments, the first optimization feature may reduce the backspin of golf ball 2900 via the gear effect between striking face 1210 and golf ball 2900 to obtain good performance. . In FIG. 2, the center of gravity 2500 of the head is shown below the depth plane 2310, and the CG height 2520 is shown extending between the depth plane 2310 and the head sole portion 1130. However, an embodiment in which the head gravity center 2500 can exist above the above-described depth surface 2310 so that the CG height 2520 extends between the depth surface 2310 and the head upper portion 1120 while still satisfying the above relationship 1 is also possible. It is possible. In some embodiments, the head CG upper boundary 2540 can be about 0 mm to about 30 mm. In other embodiments, the head CG upper boundary 2540 can be less than about 8 mm, about 9 mm, about 10 mm, about 11 mm, about 12 mm, about 13 mm, about 14 mm, about 15 mm, about 20 mm, or about 25 mm.

  In addition, in view of increasing face size and / or face height 1213 as described above, golf club head 1000 still restricts movement of center of gravity 2500 towards striking face 1212, Prevents the CG depth 2510 from becoming excessively shallow. For example, the golf club head 1000 has a second optimization feature that satisfies the following relationship 2:

  Therefore, the relationship between the face height 1213 and the CG depth 2510 is balanced according to the relationship 2, so that the second optimization characteristic is maintained at 0.56 or less, whereby the CG depth 2510 is hit. It limits the amount that can be shallow towards the face 1210. An example where the CG depth 2510 can be about 25 mm to about 102 mm is also possible. In the same or other examples, the CG depth 2510 can be at least about 39 mm. In the same or other examples, the CG depth 2510 can be greater than about 41 mm and less than about 102 mm. In further embodiments, the CG depth 2510 is about 42 mm, about 43 mm, about 44 mm, about 45 mm, about 46 mm, about 47 mm, about 48 mm, about 49 mm, about 50 mm, about 55 mm, about 60 mm, about 65 mm, or about 70 mm It can be larger than that. In some embodiments, the second optimization feature may improve or optimize at least one of the dynamic loft of the golf club head 1000 or the launch angle of the golf ball 2900 at impact.

  In some examples, golf club head 1000 may be configured to have only one of the first or second optimization characteristics described above. For example, the golf club head 1000 may be provided with a first optimization characteristic but not with a second optimization characteristic, thus satisfying the relationship 1 without satisfying the relationship 2. As another example, the golf club head 1000 may have the second optimization characteristic but may not have the first optimization characteristic, and thus satisfies the relation 2 without satisfying the relation 1. In addition, embodiments are also possible in which the golf club head 1000 meets both relationship 1 and relationship 2 and thus comprises the first and second optimization characteristics.

  The golf club head 1000 may also be provided with a third optimization feature for its head volume (HV) 2600. In this example, the head main body 1000 of the golf club head 1000 is configured of a driver type main body having a head capacity of 420 cubic centimeters (cc) or more, so the size of the head capacity is 420 or more. For example, since the head main body 1000 can have a head capacity of 420 cc, the size of the head capacity is 420. As another example, since the golf club head 1000 can have a head capacity of 460 cc, the size of the head capacity is 460. The golf club head 1000 may, in some embodiments, have a head volume of up to about 470 cc and / or have a total head weight of about 185 grams to about 225 grams. In some specific examples, the total head weight can be about 202 grams and / or the head volume can be about 460 cc.

  The third optimization characteristic can control the relationship between the head capacitance 2600 and the position of the center of gravity 2500, and can be determined to satisfy the following relationship 3.

  In some cases, the head volume 2600 can be increased, for example, to adjust the moment of inertia (MOI) of the golf club head 1000. However, increasing the head capacity indefinitely can have undesirable effects on other properties of the golf club head. For example, increasing the head volume 2600 may cause it to move away from the desired center of gravity or one or more directions towards the head front 1110, towards the head top 1120, towards other undesirable directions, and / or In addition, the head center of gravity 2500 may be moved, thereby impairing the performance of the golf club head 1000. These undesirable changes in the center of gravity position can adversely affect one or more properties of the golf club head (such as launch speed, launch angle, gear effects, backspin and / or shot distance). Therefore, by setting the third optimization characteristic used to balance the relationship between the head capacity 2600 and the position of the head center of gravity 2500, a desirable and well-balanced attribute can be obtained for the golf club head 1000. For example, the weight distribution of the golf club head 1000 can be configured to satisfy relationship 3 to enable the golf club head 1000 to exhibit the third optimization characteristic, thereby making the head volume 2600 By increasing it, the moment of inertia can be increased, and more energy can be transferred to the golf ball 2900 at the time of the golf impact of the striking face 1210 and the golf ball 2900. In the same or other embodiments, the weight distribution of the golf club head 1000 can be configured to limit the CG depth 2510 from becoming shallow towards the head front 1110 due to the increased head volume 2600. Thus, at the time of golf impact, at least one of the dynamic loft of the striking face 1210 or the launch angle of the golf ball 2900 is improved. In addition, the weight distribution of the golf club head 1000 can be configured to limit the CG height 2520 ascending towards the upper head 1120 as a result of increasing the head volume 2600, thereby During a golf impact, the gear effect between the striking face 1210 and the golf ball 2900 reduces the backspin of the golf ball 2900.

  In view of the above, in order to achieve the third optimization property according to relation 3, the CG depth 2510 can be configured to be 40.64 mm or more. In other embodiments, the CG depth 2510 can be greater than about 41 mm and less than about 102 mm. In further embodiments, the CG depth 2510 is about 42 mm, about 43 mm, about 44 mm, about 45 mm, about 46 mm, about 47 mm, about 48 mm, about 49 mm, about 50 mm, about 55 mm, about 60 mm, about 65 mm, or about 70 mm It can be larger than that. In the same or other embodiments, the absolute value of CG height can be 2.54 mm or less. It is noted that in some embodiments, CG height 2520 is characterized as an absolute value, taking into account that head center of gravity 2500 can be above or below head depth plane 2310. The head CG upper boundary 2540 can be about 0 mm to about 30 mm. In other embodiments, the head CG upper boundary 2540 can be about 8 mm, about 9 mm, about 10 mm, about 11 mm, about 12 mm, about 13 mm, about 14 mm, about 15 mm, about 20 mm, or about 25 mm or less. The third optimization feature may be another embodiment having a lower limit of at least 425, but the third optimization feature may be defined relative to other lower limits. For example, in some embodiments, the third optimization feature may comprise a lower limit of at least 435 or 445. In other examples, the third optimization characteristic may comprise a lower limit of at least 460, at least 470, at least 480, at least 490, or at least 500. The position of the head center of gravity 2500 may also be designed or set with respect to other features of the golf club head 1000 to satisfy relationship 3 and / or to achieve the third optimization feature. For example, the position of head center of gravity 2500 may be configured such that CG depth 2510 has about 25% to about 80% of head depth length 2312. In the above, the head depth 2312 is a dimension from the hitting face center point 1211 to the intersection of the outer surface of the head rear portion 2160 and the depth surface 2310. As another example, the position of the head center of gravity 2500 can be configured such that the CG height 2520 has about 0% to about 13% of the CG height axial length 2322. In the above, the axial length 2322 of the CG height is a dimension from the intersection of the outer surface of the head upper portion 1120 and the axis 2320 of the CG height to the intersection of the outer surface of the head sole portion 1130 and the axis 2320 of the CG height.

  The head CG depth 2510 and the head CG height 2520 described above relate to a driver type club head. In embodiments where the club head is a fairway wood club head, the head CG depth 2510 can be configured to be 35 mm or greater. In other embodiments of the fairway wood club head, the CG depth 2510 can be greater than about 35 mm and less than about 90 mm. In further embodiments of the fairway wood type club head, the CG depth 2510 is greater than about 34.5 mm, 35 mm, 36 mm, 37 mm, 38 mm, 39 mm, 40 mm, 41 mm, 42 mm, 43 mm, 44 mm, 45 mm, or 46 mm. Can. Furthermore, in the embodiment where the club head is a fairway wood type club head, the head CG height 2520 or its absolute value can be configured to be 12.8 mm or less. 11. In another embodiment of the fairway wood club head, the CG height 2520, or its absolute value, is approximately 13.0 mm, 12.8 mm, 12.6 mm, 12.4 mm, 12.2 mm, 12.0 mm, 11. It can be less than 8 mm, 11.6 mm, 11.4 mm, 11.2 mm, or 11.0 mm. In these embodiments, the capacity of the fairway wood club head may be between 300 cc and 400 cc, and the mass of the fairway wood club head may be between 190 grams and 240 grams.

  The golf club head 1000 can also include the hosel diameter of the hosel structure 1217. The hosel diameter can be kept to a minimum and / or can remain relatively unchanged from the corresponding standard golf club head hosel diameter. In some cases, the hosel diameter can be less than about 0.78 inches (20 mm). For example, the hosel diameter can be less than about 0.78 inches and greater than about 0.50 inches. A hosel diameter within this range can provide the golf club head 1000 with performance benefits. When the hosel diameter is in this range, the hosel can have greater structural integrity and can reduce stresses on the hosel during the swing of the golf club. In addition to having a hosel diameter within this range, the golf club head 1000 can further include optimization properties related to the center of gravity (CG) and the moment of inertia (MOI) as described herein. .

  In further examples, the hosel diameter is approximately 0.50 inches, 0.49 inches, 0.48 inches, 0.47 inches, 0.46 inches, 0.45 inches, 0.44 inches, 0.43 inches, 0. It can be less than .42 inches, 0.41 inches, or 0.40 inches. A hosel diameter of less than 0.50 inches can provide the golf club head 1000 with additional performance benefits. When the hosel diameter is minimized as described above, the aerodynamic characteristics of the golf club head 1000 can be improved as a result of the reduced aerodynamic drag from the hosel structure 1217. In addition to having a hosel diameter within this range, the golf club head 1000 can further include optimization properties related to the center of gravity (CG) and the moment of inertia (MOI) as described herein. .

  The golf club head 1000 may also be provided with a fourth optimization feature on the balance of the hosel MOI 1711 (FIG. 1) and the horizontal MOI 1811 (FIG. 1). The hosel MOI 1711 is defined around the hosel shaft 1710. A horizontal MOI 1811 is defined about the head horizontal axis 1810. This axis extends through the head center of gravity 2500 from the head heel 1140 to the head toe 1150 and is parallel to the ground 1010 when the golf club head 1000 is at an address position relative to the ground 1010.

  In some instances, increasing the horizontal MOI 1811 may cause the golf club head 1000 to rotate about the horizontal axis 1810 when the striking face 1210 is off center and hits the golf ball 2600 toward the head upper portion 1120 or the head sole portion 1130. The rotation can be limited. As a result, the tolerance of the golf club head 1000 is improved with respect to the above-mentioned upper or lower hit. For example, weights may be added or repositioned near the head front 1110 and / or the head back 2160 to increase the horizontal MOI 1811. In the same or other examples, golf club head 1000 can be extended towards head front 1110 and / or head rear 2160.

  However, such adjustments or changes to increase the horizontal MOI 1811 can be made to some extent before they begin to affect other golf club head properties. For example, adjustments made without limit to increase the horizontal MOI 1811 may cause the hosel MOI 1711 to increase excessively if not properly balanced. This will increase the resistance to rotate the golf club head 1000 around the hosel shaft 1710, so for some users to properly position the golf club head 1000 upon impact with the golf ball 2600 (or “square To “turn” the golf club during the golf swing. By increasing the hosel MOI 1711, the gear effect between the golf ball 2600 and the striking face 1210 can also be limited or suppressed. Otherwise, this gearing effect will slightly correct the spin of the golf ball 2600 at off-center impacts.

  The golf club head 1000 can be designed to limit the distance between the hosel shaft 1710 and any additional or selective mass to the golf club head 1000 to reduce the hosel MOI 1711. The above approach to reduce the hosel MOI 1711 may conflict with some of the above approaches to increase the horizontal MOI 1811 if not properly balanced. Therefore, when adding or redistributing weights to the golf club head 1000 to increase the horizontal MOI 1811, it is necessary to balance with respect to maintaining or limiting the increase in the hosel MOI 1711.

From the above point of view, the fourth optimization characteristic of the golf club head 1000 controls the relationship between the horizontal MOI 1811 and the hosel MOI 1711 so that the following relationship 4 is satisfied.
(Horizontal MOI ₁₈₁₁ ) 1139% (Hosel MOI ₁₇₁₁ ) [Relationship 4]

For the golf club head 1000, an example is possible that can be configured such that its fourth optimization characteristic can exceed the requirement of relation 4. As an example, in some embodiments, the fourth optimization characteristic of the golf club head 1000 is such that the horizontal MOI 1811 is at least 40% of the hosel MOI 1711, 45% or more of the hosel MOI 1711, or 50% or more of the hosel MOI 1711. Can be configured to In this example, the horizontal MOI1811 is about 3740 grams centimeter squared (g · cm ^2), are also possible which can range from about 2800 g · cm ² ~ about 4300 g · cm ² this. In many embodiments, the horizontal MOI is greater than about 2800 g · cm ^2, greater than about 3000 g · cm ^2, greater than about 3200 g · cm ^2, greater than about 3400 g · cm ^2, about 3600 g · cm greater than ^2, greater than about 3800 g · cm ^2, may be greater than greater than about 4000 g · cm ² or from about 4200 g · cm ^2,. Hosel MOI1711 is in this example is about 9370g · cm ^2, the same or another example may be in the range of about 7000 g · cm ² ~ about 11,000 g · cm ^2. In many embodiments, the hosel MOI1711 is greater than about 7000 g · cm ^2, greater than about 7500 g · cm ^2, greater than about 8000 g · cm ^2, greater than about 8500 g · cm ^2, about 9000 g · cm greater than ^2, about greater than 9500 g · cm ^2, greater than about 10,000 g · cm ^2, be increased to about 10,500 · cm ² greater than, or greater than about 11,000 g · cm ² it can.

The golf club head 1000 may also have a fifth optimization feature on the balance of the hosel MOI 1711 and the vertical MOI 1611 (FIG. 1). The vertical MOI 1611 is defined around the head vertical axis 1610. This axis extends through the head center of gravity 2500 from the head top 1120 to the head sole portion 1130 and is perpendicular to the ground 1010 when the golf club head 1000 is in the address position. Vertical MOI1611 is in this example is about 5300 g · cm ^2, the same or another example may be in the range of about 4700 g · cm ² ~ about 6000 g · cm ^2. In many embodiments, the vertical MOI1611 is greater than about 4700 g · cm ^2, greater than about 4900g · cm ^2, greater than about 5100 g · cm ^2, greater than about 5300 g · cm ^2, about 5500 g · cm ^It can be greater than ^two, greater than about 5700 g · cm ² , or greater than about 5900 g · cm ² .

  In some instances, by increasing the vertical MOI 1611, the striking face 1210 may be off center and closer to the head heel portion 1140 (or closer to the head toe portion 1150) as it hits the golf ball 2600. The rotation of the golf club head 1000 can be limited. Thereby, the tolerability of the golf club head 1000 is improved with respect to the heel side or the toe side as described above. For example, weights can be added or repositioned near the head heel 1140 and / or head toe 1150 to increase the vertical MOI 1611. In the same or other examples, the golf club head can be extended towards the head heel 1140 and / or head toe 1150.

  However, such adjustments or changes to increase the vertical MOI 1611 can be made to some extent before they begin to affect other golf club head properties. For example, if adjustment is made without limit to increase the vertical MOI 1611, the hosel MOI 1711 may increase excessively if not properly balanced, thereby causing the golf club head 1000 to The resistance to rotate about the hosel shaft 1710 is increased. In addition, some approaches to reducing hosel MOI 1711 may conflict with some of the above approaches to increasing vertical MOI 1611 if not properly balanced. As such, when adding or redistributing weights to the golf club head 1000 to increase the vertical MOI 1611, it is necessary to balance with respect to maintaining or limiting the increase in the hosel MOI 1711.

From the above point of view, the fifth optimization characteristic of the golf club head 1000 controls the relationship between the vertical MOI 1611 and the hosel MOI 1711 so that the following relationship 5 is satisfied.
(Vertical MOI ₁₆₁₁ ) 59 59% (Hosel MOI ₁₇₁₁ ) [Relation 5]

  For the golf club head 1000, an example is possible that can be configured such that its fifth optimization property can exceed the requirement of relation 5. As an example, in some embodiments, the fifth optimization property of the golf club head 1000 is such that the vertical MOI 1611 is at least 60% of the hosel MOI 1711, at least 65% of the hosel MOI 1711, or at least 70% of the hosel MOI 1711. Can be configured to In some examples, the golf club head 1000 can be configured such that its fourth optimization property satisfies relation 4 and its fifth optimization property also satisfies relation 5.

(Weight structure)
In some embodiments, by adjusting the mass distribution of the golf club head 1000 or the relationship between various elements of the golf club head 1000, the above-mentioned head CG depth, head CG height, first, second, etc. The golf club head 1000 can be configured to exhibit the third, fourth and / or fifth optimization characteristics. For such purposes, as can be understood from FIGS. 2-3, the golf club head 1000 can include a weight structure 2700 disposed near the head sole portion 1130 and the head rear portion 2160. In some configurations, it may be possible to design and / or arrange the weight structure 2700 to meet the constraints imposed by Relationship 1, Relationship 2, Relationship 3, Relationship 4 and / or Relationship 5. This balances the face height or face size of the striking face 1210, the head volume 2600 of the golf club head 1000, the position of the center of gravity 2500 and / or various moments of inertia.

  As can be seen from FIG. 3, it is possible to place the weight structure 2700 relative to the watchplate 3500, but the watchcase can be aligned with respect to the striking face 1210. For example, the watchcase 3500 includes a 12 o'clock line 3512, which is aligned with the striking face center point 1211 of the present embodiment. The twelve o'clock line 3512 is orthogonal to the front intersection 3271, which is defined by the intersection of the loft plane 2270 (FIGS. 2-3) and the ground 1010 (FIGS. 1-2). The watchboard 3500 is centrally located along the 12 o'clock line 3512 at the midpoint between the front end of the front 1110 and the rear end of the rear 2160. In the same or another example, the watch center 3515 may be positioned close to the geometric center of the golf club head 1000. The watchplate 3500 also includes a three o'clock line 3503 extending toward the head heel portion 1140 and a nine o'clock line 3509 extending toward the head toe portion 1150.

  The weight edge 2705 of the weight structure 2700 is at least partially restricted between the 4 o'clock line 3504 and the 8 o'clock line 3508 in the present embodiment and arranged near the head rear 2160, The weight center 2750 is disposed between the five o'clock line 3505 and the seven o'clock line 3507. In the example of the present watch panel etc., the weight edge 2705 is completely restricted between the 4 o'clock line 3504 and the 8 o'clock line 3508. In the present example, the weight edge 2705 is defined on the outer surface of the golf club head 1000, but other examples are possible, in which case the weight edge may extend inside the golf club head 1000 ( Alternatively, it may be defined inside the golf club head 1000). In some instances, the position of the weight 2700 can be set for a larger area. For example, in the above example, the weight edge 2705 of the weight structure 2700 can be at least partially restricted between the 4 o'clock line 3504 and the 9 o'clock line 3509 of the timepiece plate 3500 and arranged near the head rear 2160 The weight center 2750 can be disposed between the 5 o'clock line 3505 and the 8 o'clock line 3508 with it.

  In the same or other embodiments, weight structure 2700 can be extended or moved towards heel portion 1140. For example, the weight edge 2705 and / or the weight center 2750 can be moved towards the 4 o'clock 3504 rather than towards the 9 o'clock 3509. When the weight structure 2700 is biased near the head heel portion 1140, the hosel MOI 1711 around the hosel shaft 1710 can be reduced by limiting the distance between the hosel shaft 1710 and the weight structure 2700. Thereby, the golf club head 1000 can be more easily rotated around the hosel shaft 1710 during the swing.

  In some examples, weight structure 2700 can have a weight of about 2 grams to about 50 grams and / or a volume of about 1 cc to about 30 cc. In this example, since the weight structure 2700 protrudes from the outer contour of the head sole portion 1130, the weight structure 2700 is at least partially outside, whereby the head gravity center 2500 can be adjusted larger.

  The weight structure 2700 can comprise a removable weight 2790 in the same or another example. In this case, the removable weight 2790 may have a mass of about 0.5 grams to about 30 grams, if necessary to satisfy relationships 1, 2, 2, 3, and / or 5. The position of the head center of gravity 2500 may be adjusted by replacing this weight with one or more other similar weights. In the same or other example, weight center 2750 is at least one of the center of gravity of weight structure 2700, the center of gravity of removable weight 2790, the geometric center of weight structure 2700 and / or the geometric center of removable weight 2790. Have one.

  The weight center 2750 can be disposed relative to the ground 1010 and a weight center perpendicular distance axis 2340, which extends between the weight center 2750 and the ground 1010. The axis 2340 of weight center vertical distance is perpendicular to the ground 1010 when the golf club head 1000 is at an address position relative to the ground. Thus, a weight center vertical distance 2730 of weight center 2750 can be measured between weight center 2750 and ground 1010 along axis 2340 of weight center vertical distance. In addition, the weight center depth 2710 of the weight center 2750 can be measured parallel to the ground 1010 between the intersection point 2802 and the intersection point 2804. In this example, the intersection point 2804 is defined by the intersection between the ground 1010 and the axis 2340 of the weight center vertical distance when the golf club head 1000 is in the address position. In the same or other embodiments, weight center 2750 can be positioned such that weight distance 2751 (FIG. 2) separating head center of gravity 2500 from weight center 2750 can be about 25 mm to about 102 mm.

  Embodiments are possible where the thickness of the face portion 1200 can be reduced, but if desired, one or more reinforcing structures may be used to back and / or face portion 1200 of the striking face 1210 and head front The face portion 1200 may be reinforced at the joints of 1110. Other mass redistribution mechanisms can also be utilized if desired to satisfy relationships 1, 2, 3, 4 and / or 5.

  In some embodiments, the relationship or ratio between the head center of gravity 2500 and the weight center 2750 can be configured to satisfy one or more of relationship 1, relationship 2, relationship 3, relationship 4 and / or relationship 5 is there. For example, the vertical distance ratio defined by the ratio of the weight center vertical distance 2730 to the head CG vertical distance 2530 is larger than 0.44, and the effect of maintaining the head gravity center 2500 closer to the head sole portion 1130 can be obtained. it can. In another example, the depth ratio defined by the ratio of weight center depth 2710 to head CG depth 2510 is less than 2.54 so that CG depth 2510 does not become excessively shallow toward head front 1110 be able to. Some embodiments are also possible where the head CG vertical distance 2530 can be less than about 28.5 mm, in which case the weight center vertical distance 2730 can be less than about 12.5 mm and / or the weight The center depth 2710 can be greater than about 99.7 mm.

  In the same or other embodiments, the mass distribution within the golf club head 1000 is such that the golf club head 1000 exhibits the first, second, third, fourth, and / or fifth optimization characteristics described above. Can be further adjusted to make up For such purposes, the golf club head 1000 can include one or more weight members comprised of an adhesive material distributed near the head sole portion 1130. One or more weight members can be disposed on the inner surface of the head sole portion 1130. In some configurations, it is possible to design and / or arrange one or more weight members to meet the constraints imposed by relationships 1, 2, 3, 4 and / or 5. Balance the face height or face size of the striking face 1210, the head volume 2600 of the golf club head 1000, the position of the center of gravity 2500, and / or various moments of inertia.

  In some instances, each of the one or more weight members can include a weight of about 2 grams to about 50 grams and / or a volume of about 1 cc to about 30 cc. In some configurations, the one or more weight members can include an adhesive, such as an acrylic adhesive or an epoxy resin adhesive. The one or more weight members can optionally also be composed of a mixture of adhesive and metal powder. Alternatively, the one or more weight members can include a combination of an adhesive and one or more mass elements. Each of the one or more mass elements can weigh between about 0.5 grams and about 30 grams. In some instances, each of the one or more mass elements can include a metal, a metal alloy, or some other material having a high density.

  Adjusting the mass distribution within the golf club head 1000 to configure the golf club head 1000 to exhibit the first, second, third, fourth and / or fifth optimization characteristics described above In addition, one or more weight members can provide the golf club head 1000 with additional performance benefits. In some instances, the adhesive material comprising one or more weight members may maintain its tack or adhesive properties such that, during use of golf club head 1000, one loose fragment within club head 1000 is used. It adheres to the above weight members. In the same or another example, one or more weight members disposed on the inner surface of the head sole portion 1130 provide vibration damping and / or sound damping during impact of the golf club head 1000 with the golf ball 2900. Can. In the same or a further example, one or more weight members can be disposed on the inner surface of the head sole portion 1130 in a particular position and in a particular amount, whereby the golf club 1000 can have its impact during impact with the golf ball 2900. Desired acoustic properties can be achieved.

(Fine area)
In some embodiments, by adjusting the mass distribution of the golf club head 1000 or the relationship between the various elements of the golf club head 1000, the above-described head CG depth, first, second, third, third, etc. The golf club head 1000 can be configured to exhibit the fourth and / or fifth optimization characteristics. For such purposes, golf club head 1000 can include one or more sub-regions disposed within various regions of club head 1000. The club head 1000 can include subregions instead of or in addition to the weight structure 2700. The fine area positions the additional discretionary weight within the weight structure, on the inner or outer circumferential surface of the club head 1000, and / or other areas of the club head 1000 by increasing the discretionary weight of the golf club head 1000. The first, second, third, fourth and / or fifth performance characteristics can be achieved.

  Subregions can be positioned on any region of the club head 1000. For example, the subregions can be positioned on one or more of head top 1120, head sole 1130, head heel 1140, head toe 1150, head back 2160, or face 1200.

  In many embodiments, the subregions comprise a thickness of less than about 0.020 inches. In other embodiments, the subregions comprise a thickness less than 0.025 inches, less than 0.020 inches, less than 0.015 inches, or less than 0.010 inches. For example, the subregions may be about 0.010 to about 0.025 inches, about 0.015 to about 0.020 inches, about 0.016 to about 0.020 inches, about 0.017 to about 0.020 inches, Or, a thickness of about 0.018 to about 0.020 inches can be provided.

  In the illustrated embodiment, the subregions are variable in shape and position and cover about 25% of the surface area of the club head 1000. In other embodiments, the subregions are about 20 to about 30%, about 15 to about 35%, about 15 to about 25%, about 10 to about 25%, about 15 to about 30% of the surface area of the club head 1000 Or about 20 to about 50% can be covered. Further, in other embodiments, the sub-regions are up to 5%, up to 10%, up to 15%, up to 20%, up to 25%, up to 30%, up to 35%, up to 40%, of the surface area of the club head 1000 It can cover up to 45%, or up to 50%.

  In many embodiments, a portion of the thin area is positioned on the upper head 1120 such that about 51% of the surface area of the upper head 1120 comprises the small area. In other embodiments, up to 20%, up to 25%, up to 30%, up to 35%, up to 40%, up to 45%, up to 50%, up to 55%, up to 60%, up to 65% of the head top 1120 At least a portion of the subregions can be positioned such that up to 70%, or up to 75%, comprise the subregions. For example, in some embodiments, about 40-60% of the upper head 1120 can comprise sub-regions. For further examples, in other embodiments, about 35-65%, about 30-70%, or about 25-75% of the head top 1120 can comprise sub-regions.

  In many embodiments, a portion of the smaller area is positioned on the head sole 1130 such that about 64% of the surface area of the head sole 1130 comprises the smaller area. Other embodiments include up to 20%, up to 25%, up to 30%, up to 35%, up to 40%, up to 45%, up to 50%, up to 55%, up to 60%, up to 65% of the head sole portion 1130 , At least a portion of the narrow area may be positioned on the head sole portion 1130 such that up to 70%, or up to 75%, comprise the narrow area. For example, in some embodiments, about 40 to about 60% of the head sole portion 1130 can comprise the subregions. For further examples, in other embodiments, about 35 to about 65%, about 30 to about 70%, or about 25 to 75% of the head sole portion 1130 can comprise the subregions.

  In many embodiments, club heads 1000 having narrow areas can be manufactured using centrifugal casting. In other embodiments, portions of the club head 1000 having narrow areas can be manufactured using other suitable methods such as stamping, forging, or machining. In embodiments where a portion of club head 1000 having a fine area is manufactured using stamping, forging, or machining, that portion of club head 1000 may be epoxy, tape, welds, mechanical fasteners, or other suitable Can be linked using any method.

(Fixed weight)
In some embodiments, by adjusting the mass distribution of the golf club head 1000 or the relationship between various elements of the golf club head 1000, the above-mentioned head CG depth, head CG height, first, second The golf club head 1000 can be configured to exhibit the third, fourth and / or fifth optimization characteristics. For such purposes, the golf club head 1000 can include one or more fixed weights 3100 having a specific gravity greater than that of the body, as shown in FIGS. 8 and 9. The club head 1000 can include one or more fixed weights 3100 instead of or in addition to the weight structure 2700. Additionally, club head 1000 can include one or more fixed weights 3100 instead of, or in addition to, the subregions. Furthermore, in embodiments where the club head includes one or more fixed weights 3100 in addition to weight structure 2700, one or more fixed weights 3100 can be disposed within weight structure 2700, or one or more The fixed weight 3100 can be disposed outside the weight structure 2700 or separately.

  In these or other embodiments, referring to FIGS. 8 and 9, one or more stationary weights 3100 are positioned on the sole of the club head near the edge 2162 of the head back 2160 of the club head 1000. For example, in many embodiments, one or more stationary weights 3100 are positioned within 1.0 inch from edge 2162 of head aft 2160. In other embodiments, the one or more stationary weights 3100 may extend from the edge 2162 of the head back 2160 0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 1.75. Or can be positioned within 2.0 inches.

  Further, in these or other embodiments, the one or more fixed weights 3100 are greater than the front 2280 to 3.75 inches, greater than 4.0 inches, greater than 4.25 inches, or 4.50 of the front of the club head 1000. It can be positioned a distance greater than an inch or greater than 4.75 inches. Further, in these or other embodiments, one or more fixed weights 3100 are greater than 1.5 inches, greater than 1.75 inches, greater than 2.0 inches, 2.25 from the CG2 500 head of the club 1000 It can be positioned a distance greater than an inch or greater than 2.5 inches.

  The body 1100 of the club head 1000 comprises a first material. One or more fixed weights 3100 can be tungsten, gold, hafnium, iridium, mercury, neptunium, osmium, palladium, platinum, plutonium, protoactinium, rhenium, rhodium, ruthenium, tantalum, uranium, or any other high density material Etc. including a second high density material. In many embodiments, the second material has a specific gravity greater than 12.0. In other embodiments, the second material is greater than 10.0, greater than 11.0, greater than 12.0, greater than 13.0, greater than 14.0, greater than 15.0, 16. It can have a specific gravity greater than 0, greater than 17.0, or greater than 18.0. For example, in some embodiments, the second material has a specific gravity of between 10.0 and 18.0, between 12.0 and 18.0, or between 14.0 and 18.0. Can.

  In many embodiments, one or more of the fixed weights 3100 can include a mass greater than 12 grams. In other embodiments, one or more of the fixed weights 3100 can include a mass greater than 8 grams, greater than 9 grams, greater than 10 grams, greater than 11 grams, or greater than 12 grams.

  In some embodiments, the fixed weight 3100 can be integrally formed with the body of the club head by casting, co-molding, or any other suitable method. In other embodiments, the stationary weight 3100 is formed separately from the body of the club head and welded (eg, sintered the stationary weight into a low density weldable material), braze, adhesive (such as epoxy) Can be coupled to the club head by rivets, screws, or any other suitable method. In many embodiments, one or more stationary weights are permanently connected to the club head. In other embodiments, one or more stationary weights can be removably coupled to the club head.

(Relative mass characteristics)
In the following, in order to achieve the head CG depth, the head CG height, and the first, second, third, fourth, and / or fifth optimization characteristics described above, the mass characteristics of the golf club head 1000 are Various embodiments are described with respect to exemplary drivers, fairway woods, and hybrid golf club heads.

  In many embodiments, the golf club head 1000 includes a first back region that includes a portion of the back end of the club head 1000 located within the last or last 20% of the length 2910 of the club head 1000. Can. In addition, the golf club head 1000 can include a second back region that includes a portion of the back end of the club head 11000 disposed within the last or last 10% of the length 2910 of the club head 1000. In these or other embodiments, the length 2910 of the club head 1000 is the maximum distance measured perpendicular to the front face 2280 from the leading edge 2912 to the back end of the club head in the direction from the face portion 1200 to the head back 2160 .

  The exemplary driver club head 1000 can have a capacity greater than about 400 cc and a golf club length greater than 44 inches. In other embodiments, an exemplary driver-type club head can include a capacity greater than 400 cc, greater than 410 cc, greater than 420 cc, greater than 430 cc, greater than 440 cc, or greater than 450 cc. Additionally, in other embodiments, an exemplary driver-type club head can include a golf club length greater than 44 inches, greater than 45 inches, greater than 46 inches, or greater than 47 inches. Further, in other embodiments, an exemplary driver-type club head can include a golf club length of between 44 and 48 inches, between 45 and 48 inches, or between 46 and 48 inches.

  In many embodiments of the exemplary driver-type club head, the first material of the body 1100 comprises a titanium alloy such as Ti-6-4 or Ti-9s. In other embodiments, the first material of the body 1100 can comprise any suitable material having a specific gravity of less than 5.0. For example, the first material of the body 1100 can include titanium, aluminum, barium, beryllium, scandium, strontium, or yttrium. In many embodiments of the exemplary driver-type club head, the ratio of the specific gravity of the first material of the body to the specific gravity of the second material of the weight is less than about 0.4. In another embodiment of the exemplary driver-type club head, the ratio of the specific gravity of the first material of the body to the specific gravity of the second material of the weight is less than about 0.6, less than about 0.5, about 0 Less than about 4, less than about 0.3, or less than about 0.2. Further, in other embodiments of the exemplary driver-type club head, the ratio of the specific gravity of the first material of the body to the specific gravity of the second material of the weight is about 0.35 to 0.45, about 0.. It can be in the range of 35 to 0.5, or about 0.2 to 0.6.

  In the illustrated embodiment of the exemplary driver-type club head, the first posterior region comprises about 20.6% of the total mass of the club head 1000. In other embodiments, the first posterior region of the driver-type club head 1000 is greater than 15%, greater than about 16%, greater than about 17%, greater than about 18%, or more of the total mass of the club head 1000. It can be greater than 19%, greater than about 20%, greater than about 22.5%, or greater than about 25%. Furthermore, in other embodiments, the first posterior region of the driver-type club head is between 15-20%, 17.5-25%, or 20-30% of the total mass of the club head 1000. Can be included.

  In the illustrated embodiment of the exemplary driver-type club head, the second back region comprises about 10.0% of the total mass of the club head 1000. In other embodiments, the second posterior region of the driver club head 1000 is greater than about 5%, greater than about 6%, greater than about 7%, greater than about 8% of the total mass of the club head 1000, and It can be greater than about 9%, greater than about 10%, greater than about 12.5%, or greater than about 15%. Furthermore, in other embodiments, the second posterior region of the driver-type club head is between 5 and 10%, between 7.5 and 15%, or between 10 and 20% of the total mass of the club head 1000 Can be included.

  An exemplary fairway wood or hybrid club head may have a capacity of less than about 400 cc and a golf club length of less than 44 inches. In other embodiments, an exemplary fairway wood or hybrid club head may include a capacity of less than 420 cc, less than 410 cc, less than 400 cc, less than 390 cc, less than 380 cc, or less than 370 cc. In some embodiments of the exemplary fairway wood type club head, the capacity of the club head is about 300 cc to 400 cc, about 325 cc to 400 cc, about 350 cc to 400 cc, about 250 cc to 400 cc, about 250 to 350 cc, or about 275 It can be 375 cc. In some embodiments of an exemplary hybrid club head, the capacity of the club head may be about 100 cc to 150 cc, about 75 cc to 150 cc, about 100 cc to 125 cc, or about 75 cc to 125 cc. Furthermore, in other embodiments, an exemplary fairway wood or hybrid club head may include golf club lengths less than 45 inches, less than 44 inches, less than 43 inches, or less than 42 inches. Furthermore, in other embodiments, an exemplary fairway wood or hybrid club head may include a golf club length between 40 and 44 inches, between 37 and 40 inches, or between 35 and 40 cc inches. it can.

  In many embodiments of the exemplary fairway wood or hybrid club head, the first material of the body 1100 comprises a steel alloy. In other embodiments, the first material of the body 1100 can comprise any suitable material having a specific gravity of less than 10.0. For example, the first material of the body 1100 is titanium, aluminum, barium, bismuth, cadmium, cerium, chromium, cobalt, copper, dysprosium, europium, gadolinium, gallium, holmium, indium, iron, steel, steel alloy, lanthanum, It may comprise lutetium, neodymium, nickel, niobium, polonium, praseodymium, promethium, terbium, thulium, tin, vanadium, zinc, zirconium, beryllium, scandium, strontium or yttrium. In many embodiments of the exemplary fairway wood or hybrid club head, the ratio of the specific gravity of the first material of the body to the specific gravity of the second material of the weight is less than about 0.8. In an exemplary fairway wood or other embodiment of a hybrid club head, the ratio of the specific gravity of the first material of the body to the specific gravity of the second material of the weight is less than about 0.9, less than about 0.8 , Less than about 0.7, less than about 0.6, or less than about 0.5. Furthermore, in an exemplary fairway wood or other embodiment of a hybrid club head, the ratio of the specific gravity of the first material of the body to the specific gravity of the second material of the weight is about 0.7 to 0.85, It can be in the range of about 0.7 to 0.9, or about 0.3 to 0.9.

  In embodiments of club head 1000 including a fairway wood type club head, the first posterior region is greater than about 13%, greater than about 14%, greater than about 15%, about 16% of the total mass of club head 1000 More than about 17%, more than about 18%, more than about 19%, more than about 20%, more than about 22.5%, more than about 25%. Furthermore, in other embodiments, the first area of the fairway wood club head is between 13-20%, 17.5-25%, or 20-30% of the total mass of the club head 1000. Can be included. For example, in one embodiment of a fairway wood type club head, the first back region comprises about 20.0% of the total mass of the club head 1000.

  In the same or other embodiments of the club head 1000 including a fairway wood club head, the second posterior region is greater than about 5%, greater than about 6%, greater than about 7% of the total mass of the club head 1000 Greater than about 8%, greater than about 9%, greater than about 10%, greater than about 11%, greater than about 12%, greater than about 15%, greater than about 18%, greater than about 21% Can. Furthermore, in other embodiments, the second rear area of the fairway wood club head is between 5-10%, between 7.5-15%, and 12.5-20% of the total mass of the club head 1000. Or between 17.5-25%. For example, in one embodiment of a fairway wood club head, the second back region comprises about 8% of the total mass of the club head 1000.

  In an embodiment of club head 1000 including a hybrid club head, the first posterior region is greater than about 12.5%, greater than about 15%, greater than about 16%, about 17% of the total mass of club head 1000. %, Greater than about 18%, greater than about 19%, greater than about 20%, greater than about 22.5%, greater than about 25%. Further, in other embodiments, the first posterior region of the hybrid club head is between 12.5-20%, between 15-20%, and 17.5-25% of the total mass of the club head 1000. Between or 20-30% can be included. For example, in one embodiment of a hybrid club head, the first back region comprises about 17.5% of the total mass of the club head 1000.

  In the same or other embodiments of the club head 1000 including a hybrid club head, the second posterior region is greater than about 3%, greater than about 4%, greater than about 5% of the total mass of the club head 1000, More than about 6%, more than about 7%, more than about 8%, more than about 9%, more than about 12%, more than about 15%. Furthermore, in other embodiments, the second posterior region of the hybrid club head is between 3 and 7.5%, between 5 and 10%, between 7.5% and 5% of the total mass of the club head 1000. Between or 12 to 20% can be included. For example, in one embodiment of a hybrid club head, the second back region comprises about 6% of the total mass of the club head 1000.

(Crown angle)
In some embodiments, by adjusting the mass distribution of the golf club head 1000 or the relationship between various elements of the golf club head 1000, the above-mentioned head CG depth, head CG height, first, second The golf club head 1000 can be configured to exhibit the third, fourth and / or fifth optimization characteristics. For such purposes, the golf club head 1000 can include a steep clan angle 1660 near the central area of the club head 1000, the heel 1140, and / or the toe 1150. In many embodiments, the steep crown angle 1660 can help lower the position of the head CG height 2510 and / or increase the head CG depth 2520.

  The club head 1000 can include a steep crown angle 1660 instead of or in addition to the weight structure 2700. In addition, club head 1000 can include a steep crown angle 1660 instead of, or in addition to, a narrow area. Additionally, club head 1000 can include a steep crown angle 1660 in place of or in addition to one or more stationary weights 3100.

  A steep crown angle 1660 is defined for various points and axes on the upper and lower transition boundaries of the club head, as described below. Referring to FIG. 5, the upper transition boundary extends from near the head heel portion 1140 to near the head toe portion 1150 between the striking face edge 1212 and the head upper portion 1120 of the golf club head 1000. The striking face edge 1212 can be defined along a transition boundary where the contour of the face portion 1200 is away from the roll radius and / or bulge radius of the striking face 1210. The upper transition boundary includes an upper transition boundary shape 1500 when viewed from the side cross section. In these embodiments, a side cross-sectional view of the upper transition boundary shape 1500 may be cut from near the head heel 1140 to near the head toe 1150 along any point of the club head 1000.

  Upper transition boundary shape 1500 includes upper radius of curvature 1515. The upper radius of curvature 1515 is defined by the first upper transition point 1510 and the second upper transition point 1520. The first upper transition point 1510 is positioned on the upper transition boundary (ie, on the striking face edge 1212) where the contour of the club head 1000 is away from the roll radius and / or bulge radius of the striking face 1210. The second upper transition point 1520 is positioned where the shape deviates from the upper radius of curvature 1515 along the upper transition boundary. The first upper radius of curvature 1515 extends from the first upper transition point 1510 to the second upper transition point 1520.

  Referring to FIG. 5, in the illustrated embodiment, the upper radius of curvature 1515 is substantially constant from the head heel portion 1140 to the head toe portion 1150 of the club head 1000. In other embodiments, the upper radius of curvature 1515 may be variable from the heel 1140 to the toe 1150 of the club head 1000. For example, the upper radius of curvature 1515 is greater toward the head heel portion 1140 of the club head 1000, toward the head toe portion 1150 of the club head 1000, within the center of the club head 1000, or in any combination of the foregoing positions. can do. Upper radius of curvature 1515 may be variable from head heel portion 1140 to head toe portion 1150 according to any shape, such as, for example, a linear shape, a parabolic shape, a quadratic equation shape, an exponential shape, or any other shape.

  In the illustrated embodiment, the upper transition boundary shape 1500 has two transition points and one radius of curvature. In other embodiments, upper boundary transition shape 1500 may include any number of transition points and any number of curvature radii. For example, upper transition boundary shape 1500 may include one, two, three, four, five, six, seven, eight, nine, ten, or any number of transition points. it can. For further examples, the upper transition boundary shape 1500 may have one, two, three, four, five, six, seven, eight, nine, ten, or any number of curvature radii. Can be included.

  Referring to FIG. 6, the rear transition boundary extends from near the head heel portion 1140 to near the head toe portion 1150 between the head rear portion 2160 and the head upper portion 1120 of the golf club head 1000. The rear transition boundary includes a rear transition boundary shape 1600 when viewed from the side sectional view. In these embodiments, a side cross sectional view of the aft transition boundary shape 1600 may be cut from near the head heel 1140 to near the head toe 1150 along any point of the club head 1000.

  The back transition shape 1600 further includes a back radius of curvature 1615 positioned between the first back transition point 1610 and the second back transition point 1620. In the illustrated embodiment, the first back transition point 1610 is located at the end of the head top 1120 near the back of the head 2160 where the curvature of the head top 1120 deviates in cross section. In the same or other embodiments, the first back transition point 1610 can be located on the back transition shape of the club head 1000 in cross section where the back radius of curvature 1615 begins. The second back transition point 1620 is located on the head back 2160 of the club head 1000 in cross section where the back radius of curvature 1615 ends.

  In the illustrated embodiment, the back radius of curvature 1615 is substantially constant along the head aft 2160 of the golf club head 1000 from the head heel 1140 to the head toe 1150. In other embodiments, the back radius of curvature 1615 can be variable along the head aft 2160 of the golf club head 1000 from the head heel 1140 to the head toe 1150. The back radius of curvature may be greater near the head heel 1140, near the head toe 1150, near the center of the golf club head 1000, or more in any combination of the above mentioned positions. For example, the back radius of curvature 1615 can be greater near the head heel 1140 and head toe 1150 than within the center of the head back 2160 of the golf club head 1000. The radius of curvature 1615 may be variable from head heel 1140 to head toe 1150 according to any shape, such as, for example, a linear shape, a parabolic shape, a quadratic shape, an exponential shape or any other shape.

  In the illustrated embodiment, the aft transition shape 1600 has two aft transition points, one radius of curvature. In other embodiments, the back transition shape can include any number of back transition points and any number of curvature radii. For example, back transition shape 1600 may include one, two, three, four, five, six, seven, eight, nine, ten or any number of back transition points . In a further example, the back transition shape 1600 includes one, two, three, four, five, six, seven, eight, nine, ten or any number of radius of curvature Can.

  Referring to FIG. 7, the upper head portion 1120 of the golf club head 1000 further includes a crown shaft 1650 when viewed from a side cross sectional view. In these embodiments, a side cross sectional view may be cut from near the head heel 1140 to near the head toe 1150 along any point of the club head 1000. The crown axis 1650 extends through the second upper transition point 1520 and the first rear transition point 1610.

  The crown axis 1650 intersects the front surface 2280 at a point on the front of the golf club head 1000. Crown angle 1660 is defined as the acute angle between crown axis 1650 and front surface 2280. The crown angle 1660 can be variable if the side cross-sectional views are cut at various locations relative to the head heel 1140 and / or head toe 1150.

  In the illustrated embodiment, the crown angle 1660 near the head toe 1150 is about 72.25 degrees, and the crown angle 1660 near the head heel 1140 is about 64.5 degrees, near the center of the golf club head 1000. The crown angle 1660 of is approximately 64.2 degrees. In other embodiments, the crown angle 1660 near the head toe portion 1150 of the club head 1000 is less than about 79 degrees, less than about 78 degrees, less than about 77 degrees, less than about 76 degrees, less than about 75 degrees, less than about 74 degrees. It may be less than about 73 degrees, less than about 72 degrees, less than about 71 degrees, less than about 70 degrees, less than about 69 degrees, or less than about 68 degrees. For example, a crown angle 1660 measured in a side cross sectional view of a club head cut through a point positioned approximately 1.0 inches from the geometric center of the striking face to the head toe 1150 is less than 79 degrees, 78 Less than 77 degrees, less than 76 degrees, less than 75 degrees, less than 74 degrees, less than 73 degrees, less than 72 degrees, less than 71 degrees, less than 70 degrees, less than 69 degrees, or less than 68 degrees.

  In some embodiments, the crown angle 1660 near the head heel portion 1140 is less than about 70 degrees, less than about 69 degrees, less than about 68 degrees, less than about 67 degrees, less than about 66 degrees, less than about 65 degrees, about It may be less than 64 degrees, less than about 63 degrees, less than about 62 degrees, less than about 61 degrees, less than about 60 degrees, less than about 59 degrees. For example, the crown angle 1660 measured in the side cross-sectional view of the club head cut through a point positioned approximately 1.0 inches off the head heel 1140 from the geometric center of the striking face is less than about 70 degrees Less than about 69 degrees, less than about 68 degrees, less than about 67 degrees, less than about 66 degrees, less than about 65 degrees, less than about 64 degrees, less than about 63 degrees, less than about 62 degrees, less than about 61 degrees, less than about 60 degrees , Can be less than about 59 degrees.

  In some embodiments, the crown angle 1660 near the center of the club head 1000 is less than about 70 degrees, less than about 69 degrees, less than about 68 degrees, less than about 67 degrees, less than about 66 degrees, less than about 65 degrees, about It may be less than 64 degrees, less than about 63 degrees, less than about 62 degrees, less than about 61 degrees, less than about 60 degrees, less than about 59 degrees. For example, the crown angle 1660 measured in the side cross-sectional view of the club head cut through the geometric center of the striking face is less than about 70 degrees, less than about 69 degrees, less than about 68 degrees, less than about 67 degrees, about Less than 66 degrees, less than about 65 degrees, less than about 64 degrees, less than about 63 degrees, less than about 62 degrees, less than about 61 degrees, less than about 60 degrees, less than about 59 degrees.

  In many embodiments, reducing the crown angle 1660 as compared to existing club heads produces a head upper portion 1120 positioned more steeply or closer to the ground. Therefore, as a result of reducing the crown angle 1660, the head CG position can be lowered.

  In some embodiments, decreasing crown angle 1660 to create a steeper head upper portion 1120 and lower head CG position may result in an undesirable increase in aerodynamic drag. The maximum head top height 1670 can be increased to prevent the increase in drag associated with the steeper head top 1120. Referring again to FIG. 7, the maximum head top height 1670 is defined as the maximum distance between the head top 1120 and the crown shaft 1650, cut at any cross-sectional view. In many embodiments, the upper head 1120 has a greater curvature as a result of the higher head upper height 1670. As the curvature in the head top 1120 increases, the position of air flow separation during the swing moves further back on the club head 1000. In other words, the greater curvature allows the air flow to remain attached to the club head 1000 for a longer distance across the head top 1120 when swinging a club. As a result of the air flow separation point being moved back on the golf club head 1000, the drag can be less and the club head speed can be higher.

In some embodiments, the maximum head top height 1670 can be about 16.5 mm (or about 0.65 inches). In other embodiments, the maximum head top height 1670 is greater than about 5 mm, greater than about 7.5 mm, greater than about 10 mm, greater than about 12.5 mm, greater than about 15 mm, about 17 It can be greater than .5 mm, greater than about 20 mm, greater than about 22.5 mm, or greater than about 25 mm. Furthermore, in other embodiments, the maximum head top height 1670 can be in the range of 5 mm to 15 mm, 10 mm to 20 mm, or 15 mm to 25 mm.
(How to manufacture a club head)
FIG. 4 is a flowchart of a method 4000 that can be used to provide, form and / or manufacture a golf club head in accordance with the present disclosure. In some instances, the golf club head can be similar to the golf club head 1000 (FIGS. 1-3) presented above.

  Method 4000 includes block 4100 providing a head body of a golf club head including a head front. In some examples, the head body can be similar to head body 1100 (FIGS. 1-3) and the head front can be similar to head front 1110 (FIGS. 1-3).

  Block 4200 of method 4000 includes connecting the face portion to the head front, which includes a striking face having an increased face size. In some instances, the face portion can be similar to face portion 1200 (FIGS. 1-2), but includes striking face 1210 having an increased face size (described above for the face portion) . For example, increasing the face size of the striking face may, in some instances, allow the face height to be up to about 71 mm.

  Method 4000 may include block 4300 configuring the golf club head to have the first optimization feature, in which case the CG height between the center of gravity of the golf club head and the depth surface of the golf club head is , About 0 mm to about 5.08 mm (or 0.200 inches). In some instances, the first optimization characteristic may be similar to that described above with respect to balance 1 of the golf club head's face height or face size relative to the center of gravity. In some examples, the CG height may be similar to CG height 2520 (FIG. 2), the center of gravity may be similar to head center of gravity 2500 (FIG. 2), and the head depth plane may be head depth plane 2310 (figure It can be the same as 2).

  It is also possible that the method 4000 may include a block 4400 that configures the golf club head to have a second optimization feature, where (a) 76.2 mm (or about 3.0 inches). ) Minus the face height, and (b) the CG depth ratio between the striking face center point and the center of gravity is less than 0.56. In some instances, the second optimization characteristic may be similar to that described above with respect to balance relationship 2 of golf club head face height or face size to barycentric depth. For example, the face height may be similar to face height 1213 and the CG depth may be similar to CG depth 2510.

  In some instances, method 4000 may include block 4500 configuring the golf club head to provide a third optimization feature, in which case the CG volume and CG height to the size of the head volume. The ratio is 425 or more. In some embodiments, the third optimization characteristic may be similar to that described above with respect to balance relationship 3 for head position to center of gravity position. For example, the size of the head volume can be similar to the size of the head volume 2600 (FIG. 2), the CG depth can be similar to the CG depth 2510, and the CG height is CG It can be similar to the height 2520.

  The method 4000 may include the method 4600 in some embodiments of configuring the golf club head to provide a fourth optimization feature, where the horizontal moment of inertia of the golf club head is its hosel moment of inertia. 39% or more of In some embodiments, the fourth optimization property may be similar to that described above with respect to the balancing relationship of horizontal MOI 1811 to hosel MOI 1711 (FIG. 1). In the same or other examples, the magnitude of the horizontal moment of inertia may be similar to that described above for the horizontal MOI 1811. In addition, the magnitude of the hosel moment of inertia may be similar to that described above for hosel MOI 1711. There are also possible instances in which the horizontal moment of inertia and / or the hosel moment of inertia can be balanced to other features (such as to the vertical moment of inertia of the golf club head).

  Block 4700 of method 4000 may be implemented in some embodiments that configure the golf club head to have a fifth optimization feature, in which case the vertical moment of inertia of the golf club head is its hosel inertia It is 59% or more of the moment. In some embodiments, the fifth optimization characteristic may be similar to that described above for the balancing relationship 5 with the vertical MOI 1611 relative to the hosel MOI 1711 (FIG. 1). In the same or other examples, the magnitude of the vertical moment of inertia may be similar to that described above for the vertical MOI 1611. In addition, the magnitude of the hosel moment of inertia may be similar to that described above for hosel MOI 1711. It is also possible that the vertical and / or hosel moments of inertia may be balanced to other features (such as to the horizontal moment of inertia of block 4500).

  In this example, the method 4000 also includes a block 4800 that provides a mass repositioning mechanism to adjust the center of gravity of the golf club head. In some instances, the mass repositioning mechanism can be configured such that the golf club head can achieve the requirements for block 4300, block 4400, block 4500, block 4600 and / or block 4700 of method 4000. The mass repositioning mechanism may comprise a weight structure, such as weight structure 2700 (FIGS. 2-3) so that, if desired, the center of gravity near the sole and / or the rear of the golf club head. The position can be adjusted. In the same or other embodiments, the mass repositioning mechanism can reduce the thickness of the face portion of the golf club head, but optionally with the back of the striking face and / or the golf club. One or more reinforcing structures may be used to reinforce the face portion of the golf club head, such as at the interface of the face portion of the head and the head body.

  In some instances, one or more of the different blocks of method 4000 may be combined into one block or performed simultaneously, and / or the order of each such block may be changed. For example, in some embodiments (such as when the face portion and at least a portion of the head body are comprised of a single piece of material), block 4100 and block 4200 may be combined. In the same or other examples, block 4800 may be combined with one or more of block 4100, block 4300, block 4400, block 4500, block 4600 and / or block 4700, using the mass relocation mechanism of block 4800, etc. It may be achieved simultaneously by adjusting the center of gravity, face height, face size, head volume and / or one or more moments of inertia of the golf club head. In the same or other examples, a portion of each block of method 4000 may be subdivided into several sub-blocks. For example, block 4100 can be subdivided into several sub-blocks that provide different portions of the head body of the golf club head. It is also possible that the method 4000 may include additional blocks or different blocks. As an example, method 4000 may include another block that provides or couples a golf club shaft to the head body of block 4100. In addition, it may be an example in which the method 4100 can include only a part of each of the blocks described above. For example, one or more of block 4300, block 4400, block 4500, block 4600 and / or block 4700 may be optional in some implementations and / or block 4300, block 4400, block 4500, block 4600 and / or Or, if it is not necessary to achieve the requirements of block 4700, block 4800 may be omitted. Other variations can be made to method 4000 without departing from the scope of the present disclosure.

  Although golf club heads and related methods with optimization features have been described herein with reference to specific embodiments, various changes may be made without departing from the concepts or scope of the present disclosure. Is possible. For example, although the above examples may be described in the context of a driver-type golf club, the devices, methods and articles of manufacture described herein may be used with other types of golf clubs (fairway wood-type). The present invention may be applicable to golf clubs, hybrid golf clubs, iron golf clubs, wedge golf clubs or putter golf clubs, and the like. Alternatively, the devices, methods and articles of manufacture described herein may be applicable to other types of sporting goods (hockey sticks, tennis rackets, fishing rods, ski stocks, etc.).

  Such variations and other examples of others have been given in the above description. Other permutations of the various embodiments having one or more of the various features are likewise contemplated. Accordingly, the specification, claims, and drawings herein are intended to be illustrative of the scope of the present disclosure and not intended to be limiting. It is intended that the scope of the present application be limited only to the scope required by the appended claims.

  Golf club heads and related methods with the optimization features described herein may be implemented in various embodiments, and the foregoing discussion of certain of these embodiments does not necessarily include all possible embodiments. Does not represent a complete description of Rather, the detailed description of the drawings and the drawings themselves disclose at least one preferred embodiment and may disclose alternative embodiments.

  Replacement of one or more claimed elements constitutes a reconstruction and is not a repair. In addition, benefits, other advantages, and solutions to problems have been described with respect to particular embodiments. However, benefits, advantages, solutions to problems, and any element or elements that give rise to, or become more apparent from, benefits, advantages, or solutions may be important and / or necessary of some or all of the claims. It should not be interpreted as an essential or essential feature or element, unless such benefits, advantages, solutions or elements are explicitly stated in such claims.

  The rules of golf may change from time to time (e.g., by a golf standardization organization and / or golf management organization such as the United States Golf Association (USGA), Royal and Ancient Golf Club of St. Andrews (R & A)). Golf equipment for the devices, methods and articles of manufacture described herein may be adopted at any particular time, as new provisions may be adopted, or old rules may be abolished or changed. It may or may not conform to the rules of golf. Accordingly, golf equipment related to the devices, methods and articles of manufacture described herein may be advertised, sold for sale and / or sold as conforming or non-conforming golf equipment. The devices, methods and articles of manufacture described herein are not limited in this regard.

  Furthermore, the embodiments and / or limitations disclosed herein, which embodiments and / or limitations are not explicitly claimed in the claims (1), and (2) the claims under the doctrine of equivalents If it is an explicit element and / or a limited equivalent or a potential equivalent, it will not be offered for public use under the doctrine of dedication.

Claims (20)

A golf club head,
A head body comprising a head front, a head rear, a head heel, a head toe, a head upper and a head interior bounded by a head sole;
A striking face having a geometric center;
A head center of gravity having a head CG depth and a head CG height;
The club head comprises a driver type body;
The head CG height is about 0 mm to about 5.08 mm,
The head CG depth is about 41 mm to about 102 mm,
The head capacity of the golf club head is about 420 cc to about 470 cc,
The head weight of the golf club head is about 185 grams to about 225 grams,
More than 15% of the club head's mass is placed within the last 20% of the club head length,
Golf club head, wherein a mass of more than 5% of the club head is located within the last 10% of the length of the club head.   The golf club head of claim 1, wherein a mass greater than 20% of the club head is located within the last 20% of the length of the club head.   The golf club head of claim 1, wherein a mass greater than 25% of the club head is located within the last 20% of the length of the club head.   The golf club head of claim 1, wherein a mass greater than 10% of the club head is located within the last 10% of the length of the club head.   The golf club head of claim 1, wherein a mass greater than 15% of the club head is disposed within the last 10% of the length of the club head. The golf club head is a weight structure further disposed in the vicinity of the head sole portion and the head rear portion of the head main body, and is disposed between a five o'clock line and an eight o'clock line of the timepiece board. A weight structure comprising the weight structure center of gravity;
The watchboard is
12 o'clock,
Three o'clock,
4 o'clock,
5 o'clock,
Equipped with 8 o'clock and 9 o'clock
When the golf club head is in the address section as viewed from the bottom of the golf club head, the 12 o'clock line is aligned with the striking face center point and is orthogonal to the front intersection line between the loft surface and the ground. Yes,
The watchboard is centrally located along the 12 o'clock line at a midpoint between the front end of the head front and the rear end of the head rear,
The three o'clock extends toward the head heel portion,
The golf club head of claim 1, wherein the nine o'clock line extends toward the head toe section.   7. The golf club head of claim 6, wherein the weight structure projects at least partially from an outer contour of the head sole portion.   The golf club head further comprises one or more sub-regions positioned on the top of the head, the one or more sub-regions having a thickness of less than 0.020 inches. Description golf club head.   The golf club head further comprises a weight positioned within 1.0 inch of the back edge of the head of the club head, the weight having a specific gravity greater than 10.0 and a mass greater than 10 grams. The golf club head according to claim 1, comprising:   The golf club head of claim 9, wherein the weight is positioned more than 1.5 inches from the center of gravity of the head. The golf club head further comprises a crown angle,
If the crown angle is measured in a side cross sectional view of the club head cut through the geometric center of the striking face, the crown angle is less than 70 degrees;
The crown angle as measured in a side cross-sectional view of the club head cut through a point located approximately 1.0 inches from the geometric center of the striking face to the head toe portion of the striking face. The golf club head of claim 1, wherein the angle is less than 79 degrees. A golf club head,
A head body comprising a head front, a head rear, a head heel, a head toe, a head upper and a head interior bounded by a head sole;
A striking face having a geometric center;
A head center of gravity having a head CG depth and a head CG height;
The club head comprises a driver type body;
The CG height is about 0 mm to about 12.8 mm,
The head CG depth is about 35 mm to about 90 mm,
The head capacity of the golf club head is about 300 cc to about 400 cc,
The head weight of the golf club head is about 190 grams to about 240 grams,
More than 15% of the club head's mass is placed within the last 20% of the club head length,
Golf club head, wherein a mass of more than 5% of the club head is located within the last 10% of the length of the club head.   13. The golf club head of claim 12, wherein a mass greater than 20% of the club head is located within the last 20% of the length of the club head.   13. The golf club head of claim 12, wherein a mass greater than 25% of the club head is located within the last 20% of the length of the club head.   13. The golf club head of claim 12, wherein a mass greater than 10% of the club head is located within the last 10% of the length of the club head.   13. The golf club head of claim 12, wherein a mass greater than 15% of the club head is located within the last 10% of the length of the club head. The golf club head is a weight structure further disposed in the vicinity of the head sole portion and the head rear portion of the head main body, and is disposed between a five o'clock line and an eight o'clock line of the timepiece board. A weight structure comprising the weight structure center of gravity;
The watchboard is
12 o'clock,
Three o'clock,
4 o'clock,
5 o'clock,
Equipped with 8 o'clock and 9 o'clock
When the golf club head is in the address section as viewed from the bottom of the golf club head, the 12 o'clock line is aligned with the striking face center point and is orthogonal to the front intersection line between the loft surface and the ground. Yes,
The watchboard is centrally located along the 12 o'clock line at a midpoint between the front end of the head front and the rear end of the head rear,
The three o'clock extends toward the head heel portion,
The golf club head of claim 12, wherein the nine o'clock line extends toward the head toe section.   The golf club head of claim 17, wherein the weight structure projects at least partially from an outer contour of the head sole portion.   The golf club head further comprises one or more sub-regions positioned on the top of the head, the one or more sub-regions having a thickness of less than 0.020 inches. Description golf club head.   13. The golf club head of claim 12, wherein the golf club head further comprises a weight positioned within 1.0 inch of the aft portion of the head of the club head.

Images