JP7736370B1 - Head speed adjustable golf practice club - Google Patents

Abstract

To provide a head speed adjustable golf practice club that can increase the precision of swing speed setting, can set swing speed with easy operation, and can prevent defects due to inexperienced operation by the user.
[Solution] The head speed adjusting golf practice club includes a first body portion attached to one end of a golf swing practice shaft, extending downward, and having a structure in which sliding grooves extending in the vertical direction are penetrated on both sides; a second body portion having a hollow cylindrical structure extending downward, which is fixed to the lower end of the first body portion by a pin after being bolted; a rotation adjusting portion disposed between the first and second body portions, having a ring structure attached to the outer surface of the first body portion so as to be capable of fixed rotation, and having a thread structure on its inner surface that engages with the outer surface of the position changing portion; and a position changing portion seated inside the sliding groove of the first body portion, which enters or exits from the inside of the first body portion by the rotation adjusting portion.
[Selected Figure] Figure 4

Description

The present invention relates to a golf practice club, and more particularly to a head speed adjustable golf practice club that allows for increased precision in setting swing speed.

Golf is a sport in which victory or defeat is determined by the number of strokes required to hit a golf ball on the course with a club and put it into the hole. By using the correct golf swing posture and accurately impacting the golf ball at the desired position, the golf ball can fly far and in the desired direction.

A golf swing is performed in a series of consecutive postures starting from the address position: backswing, downswing, impact, and follow-through. By making good use of the centrifugal force of the golfer and the club produced by the backswing, downswing, impact, and follow-through, a golf swing can increase the speed of the club and improve the impact on the golf ball. A high club impact at the impact point causes the golf ball to fly farther.

Golf training devices are used to improve swing speed and impact speed in a golf swing. Golfers can use golf training devices to improve the speed of their backswing, downswing, impact, and follow-through swing, or to identify the impact point.

The swing training device of Patent Document 1 is a typical existing golf training device that can improve swing speed and identify the impact point. As can be seen from Figure 1 ((a) shows a perspective view of the existing golf training device, and (b) shows an exploded perspective view), the swing training device of Patent Document 1 (hereinafter referred to as the "existing golf training device") includes a shaft 10, a grip 11, and a head unit 20. The head unit 20 includes a first body 21 and a second body 23 that provide a sense of weight during the swing.

The head unit 20 includes a magnet 311, a moving body 237, an adjustment ring 30 for adjusting the distance between the magnet and the moving body, and an adjustment nut 40. When the centrifugal force caused by the swing speed is greater than the magnetic force between the magnet and the moving body, the moving body separates from the magnet and strikes the bottom of the tip, generating an impact sound.

The golfer rotates the adjustment nut 40 to adjust the position of the adjustment ring 30 up or down, thereby adjusting the distance between the moving body and the magnet. Existing golf training machines rotate the adjustment nut in one direction to decrease the distance between the moving body and the magnet, minimizing the distance according to the maximum rotation distance of the adjustment nut. Existing golf training machines also allow the golfer to increase the distance between the moving body and the magnet by rotating the adjustment nut in the opposite direction, maximizing the distance according to the maximum rotation distance of the adjustment nut.

Existing golf training machines have a slide groove 211B formed between two guide walls on the first body, with an adjust ring positioned to protrude into the slide groove, and the outer thread of the adjust ring engaging with the inner thread of the adjust nut. When the adjust nut is rotated in the forward direction, the adjust ring advances from the slide groove, increasing the magnetic force with the moving body, and when the adjust nut is rotated in the reverse direction, the adjust ring retreats from the slide groove, weakening the magnetic force with the moving body.

Existing golf training devices, which include an adjustment nut 40 in the head unit 20 and adjust the speed by rotating the adjustment nut to move the adjustment ring 30 back and forth, have various problems due to their internal structure.

First, the first body and second body have corresponding threads 211A and 231A that engage with each other to form the outer shape of the head unit. During manufacturing (assembly), adhesive is applied to the threads to secure the first body and second body together and prevent them from separating. However, because the adhesive can flow into the interior through the slide grooves of the first body, care must be taken not to apply too much adhesive and to work carefully. Furthermore, internal moving parts can be exposed to the adhesive through the slide grooves and stick to the body, causing various defects such as separation due to internal or external impacts or handling.

The adjustment nut and adjustment ring adjust the set swing speed at the moment of impact by adjusting their front-to-rear position through the meshing of their threads 331, 41. Because the adjustment nut and adjustment ring typically have plastic threads, plastic tolerances and pressure caused by operation can reduce the precision of swing speed setting adjustments.

The adjustment nut is also designed to be able to rotate within its designed maximum rotation distance in the forward direction due to the thread engagement with the adjustment ring, and also within its designed maximum rotation distance in the reverse direction. However, due to a user's inexperience with existing golf training devices, a user may forcefully rotate the adjustment nut in a particular direction despite the limit of the maximum rotation distance, resulting in the head unit disassembling (separation of the first body and second body).

As explained above, there is a need for a swing speed training device that can improve, enhance, or eliminate the various problems that arise in existing golf training devices that control swing speed using a head unit.

Furthermore, with conventional head units, there is a high possibility that the threads will become twisted during the disassembly and assembly process, which can lead to damage by inexperienced users, and there is a risk of a safety accident occurring if the head unit is not assembled properly and then used for swing practice.

Therefore, there is a need for technology that can solve the problems associated with the prior art mentioned above.

Republic of Korea Patent Publication No. 10-1507569 (Registration Date: April 8, 2015)

The object of the present invention is to provide a head speed adjustable golf practice club that includes a configuration that allows for increased precision in setting swing speed, allows swing speed to be set with easy operation, and prevents defects due to the user's inexperience in operation.

To achieve this objective, one aspect of the present invention provides a head speed adjustable golf practice club that may include: a first body portion attached to one end of a golf swing practice shaft, extending downward by a predetermined length, and having sliding grooves extending vertically by a predetermined length and penetrating both sides; a second body portion having a hollow cylindrical structure that is fixed to the lower end of the first body portion by a pin after being bolted; a rotation adjusting portion that is disposed between the first and second body portions and has a ring structure attached to the outer circumferential surface of the first body portion in a stationary rotatable manner, the inner surface of which has a thread structure that engages with the outer circumferential surface of the position changing portion; and a position changing portion that is seated within the sliding groove of the first body portion and is configured to advance or eject a predetermined depth from within the first body portion in response to the rotation adjusting portion.

In one embodiment of the present invention, the first body portion may include: a shaft binding portion configured to be fastened to one end of a golf swing practice shaft and extending downward by a predetermined length; a downward extension portion extending downward by a predetermined length from the lower surface of the shaft binding portion, elastically fastening a rotation stopper to the upper surface of one side, and having a sliding groove formed in the center of one side that penetrates to both sides; a first thread binding portion formed by a predetermined width at the lower end of the outer periphery of the downward extension portion and configured to be threadedly fastened to the inner surface of the second body portion; a second thread binding portion formed by a predetermined width at the lower end of the outer periphery of the downward extension portion and configured to be threadedly fastened to the inner surface of the second body portion at a predetermined distance from the first thread binding portion; and a pin seating groove formed between the first binding portion and the second thread binding portion.

In one embodiment of the present invention, the second body portion may include a downward extension cylinder having a hollow cylindrical structure extending downward by a predetermined length, a vent hole formed in the center of the lower surface, forming a space within the hollow structure through which the moving weight can move, and a built-in elastic member that elastically supports the lower surface of the moving weight as it falls after detaching from the magnet path; a cylinder binding portion formed as an integral structure at the upper end of the downward extension cylinder and configured to be bolted to the second screw binding portion and the first screw binding portion; a seating step forming portion formed continuously along the outer peripheral surface of the upper end of the cylinder binding portion and configured to have a step structure that makes surface contact with the inner surface of the lower end of the rotation adjusting portion, thereby allowing the rotation adjusting portion to rotate in a stationary position; and a pin insertion port formed on one side of the upper portion of the cylinder binding portion and configured to allow a pin to be inserted in the direction of the pin seating groove.

In one embodiment of the present invention, the rotation adjusting portion may include a first rotating ring, which is mounted in a fixed rotational structure along its outer circumferential surface to which the anti-rotation fitting of the downward extension portion is elastically fastened, and which has grooves formed continuously at regular intervals along its inner circumferential surface to engage with the anti-rotation fitting; a second rotating ring, which is formed as an integral structure at the lower end of the first rotating ring, extends downward by a predetermined length, and has a thread structure formed on its inner surface to engage with the outer circumferential surface of the position changing portion; and a sliding rotating ring, which is formed as an integral structure at the lower end of the second rotating ring, and has a ring structure that makes surface contact with the seating step forming portion and slides.

In one embodiment of the present invention, the position change unit may include: a variable receiving unit that is inserted into the sliding groove and has a structure that allows it to change its sliding position in the vertical direction, and has threads on both ends that are screwed to the second rotating ring; a sliding member that is a cylindrical structure that slides into the hollow structure of the downward extension unit to a predetermined depth, and has through-holes on both sides of the upper part that allow the variable receiving unit to be inserted and fixed; and a magnet that is attached to one end of the sliding member, has a cylindrical structure that corresponds to the interior of the hollow structure of the downward extension unit, and is configured to magnetically attach to the upper surface of the moving weight.

As described above, the head speed adjustable golf practice club of the present invention is equipped with a first main body portion, a second main body portion, a rotation adjustment portion, and a position change portion of specific structures. This allows the separation distance between the magnet and the moving weight to be precisely adjusted, thereby changing the timing at which the moving weight separates from the magnet depending on the speed of the swing motion. This increases the precision with which the swing speed can be set, allows the swing speed to be set with simple operations, and provides a head speed adjustable golf practice club with a configuration that prevents defects due to the user's inexperience in operation.

1A and 1B are a perspective view and an exploded perspective view showing a golf swing training device according to the prior art; 1 is a perspective view showing a golf practice club with adjustable head speed according to an embodiment of the present invention; FIG. 3 is a front view showing the head speed adjustable golf practice club shown in FIG. 2 . FIG. 4 is a cross-sectional view taken along line AA' in FIG. 3. 1 is a front view showing a first body portion of a head speed adjustable golf practice club according to an embodiment of the present invention; FIG. 6 is a cross-sectional view taken along line BB′ in FIG. 5. 1 is an exploded view showing a head speed adjustable golf practice club according to one embodiment of the present invention; FIG. 8 is an exploded view showing a partial assembled configuration of the head speed adjustable golf practice club shown in FIG. 7. 9 is an exploded view showing the final assembly of the second body portion in a state where a portion of the head speed adjustable golf practice club shown in FIG. 8 is assembled. FIG. 10 is a perspective view showing how the second body portion of the head speed adjustable golf practice club shown in FIG. 9 is fixed using a pin after assembly. FIG.

Below, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to that, the terms and phrases used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical ideas of the present invention.

Throughout this specification, when we say that a component is located "on" another component, this includes not only when the component is in contact with the other component, but also when there is another component between the two components. Throughout this specification, when we say that a part "includes" other components, this does not mean that it can include other components, but that it can also include other components, unless specifically stated to the contrary.

Figure 2 shows a perspective view of a head speed adjustable golf practice club according to one embodiment of the present invention, Figure 3 shows a front view of the head speed adjustable golf practice club shown in Figure 2, and Figure 4 shows a cross-sectional view taken along line A-A' in Figure 3.

Referring to these drawings, the head speed adjustable golf practice club 100 according to this embodiment comprises a first body portion 110, a second body portion 120, a rotation adjustment portion 130, and a position change portion 140 of a specific structure, thereby increasing the precision of swing speed setting, allowing swing speed to be set with simple operation, and providing a head speed adjustable golf practice club with a configuration that can prevent defects due to the user's inexperience in operation.

Below, each component of the head speed adjustable golf practice club 100 according to this embodiment will be described in detail with reference to the drawings.

Figure 5 shows a front view of the first body portion of a head speed adjustable golf practice club according to one embodiment of the present invention, Figure 6 shows a cross-sectional view taken along line B-B' in Figure 5, and Figure 7 shows an exploded view of a head speed adjustable golf practice club according to one embodiment of the present invention.

Figure 8 shows an exploded assembly diagram illustrating the assembled state of a portion of the head speed adjustable golf club shown in Figure 7, Figure 9 shows an exploded assembly diagram illustrating the final assembly of the second main body portion when the assembled state of a portion of the head speed adjustable golf practice club shown in Figure 8 is in, and Figure 10 shows a perspective view illustrating the assembly of the second main body portion of the head speed adjustable golf practice club shown in Figure 9 and then securing it using a pin.

Referring to Figures 2 to 10, the first body portion 110 according to this embodiment is attached to one end of the golf swing practice shaft 10, extends downward by a predetermined length, and has a sliding groove G1 extending vertically by a predetermined length and penetrating both sides.

Specifically, the first body portion 110 may include a shaft binding portion 111 with a specific structure, a downward extension portion 112, a first screw binding portion 114, a second screw binding portion 115, and a pin seating groove G2.

The shaft binding portion 111 of the first main body portion is configured to be fastened to one end of the golf swing practice shaft 10 and extends downward by a predetermined length. The downward extension portion 112 extends downward by a predetermined length from the lower surface of the shaft binding portion 111, elastically fastens a rotation stopper 113 to the upper surface of one side, and has a sliding groove G1 formed in the center of one side that penetrates to both sides. The first screw binding portion 114 is formed by a predetermined width at the lower end of the outer periphery of the downward extension portion 112 and is configured to be screwed to the inner surface of the second main body portion 120. The second screw binding portion 115 is formed by a predetermined width at the lower end of the outer periphery of the downward extension portion 112 and is configured to be screwed to the inner surface of the second main body portion 120 at a predetermined distance from the first screw binding portion 114. Additionally, the pin seating groove G2 is formed between the first thread binding portion 114 and the second thread binding portion 115.

In this embodiment, the second body 120 is a hollow cylinder structure that is fixed to the lower end of the first body 110 by a pin P after bolt fastening and extends downward by a predetermined length.

Specifically, the second body portion 120 may include a downward extension cylinder 121 having a specific structure, a cylinder binding portion 124, a seating step forming portion 125, and a pin insertion hole 126.

The downward extension cylinder 121 of the second body portion 120 is a hollow cylinder structure that extends downward a predetermined length. A vent hole 122 is formed in the center of the lower surface, creating a space within the hollow structure in which the moving weight 150 can move. It also has a built-in elastic member 123 that elastically supports the lower surface of the moving weight 150 as it falls after detaching from the magnet 145. The cylinder binding portion 124 is formed as an integral structure at the upper end of the downward extension cylinder 121 and is bolted to the second screw binding portion 115 and the first screw binding portion 114. The seating step forming portion 125 is formed continuously along the outer peripheral surface of the upper end of the cylinder binding portion 124 and is a terminal structure that makes surface contact with the inner surface of the lower end of the rotation adjusting portion 130, allowing the rotation adjusting portion 130 to rotate in a fixed position. In addition, the pin insertion port 126 is formed on one side of the upper portion of the cylinder binding part 124 and is designed to allow the pin P to be inserted in the direction of the pin seating groove G2.

The rotation adjustment unit 130 in this embodiment is disposed between the first body unit 110 and the second body unit 120 and has a ring structure attached to the outer circumferential surface of the first body unit 110 in a fixed rotational structure, with a thread structure formed on its inner surface that engages with the outer circumferential surface of the position change unit 140.

Specifically, the rotation adjustment unit 130 may be configured to include a first rotating ring 131, a second rotating ring 132, and a sliding rotating ring 133 with a specific structure.

The first rotating ring 131 of the rotation adjusting part 130 is mounted in a fixed rotational structure along its outer periphery, to which the rotation stopper 113 of the downward extension part 112 is elastically fastened, and has grooves that engage with the rotation stopper 113 formed continuously at regular intervals along its inner periphery. The second rotating ring 132 is formed as an integral structure at the lower end of the first rotating ring 131, extends downward a predetermined length, and has a thread structure on its inner surface that engages with the outer periphery of the position changing part 140. The sliding rotating ring 133 is formed as an integral structure at the lower end of the second rotating ring 132 and is a ring structure that slides while making surface contact with the seating step forming part 125.

The position change unit 140 in this embodiment is seated inside the sliding groove G1 of the first body unit 110 and is configured to advance or eject a predetermined depth from inside the first body unit 110 according to the rotation adjustment unit 130.

Specifically, the position change unit 140 may include a variable storage unit 141 with a specific structure, a sliding member 142, and a magnet 145.

The variable storage portion 141 of the position change portion 140 is inserted into the sliding groove G1 and has a structure that allows it to change its sliding position in the vertical direction, and has threads on both ends that are screwed to the second rotating ring 132. The sliding member 142 is a cylindrical structure that slides into the hollow structure of the downward extension portion 112 to a predetermined depth, and has through-holes 143 formed on both sides of the upper part that allow the variable storage portion 141 to be inserted and fixed. In addition, the magnet 145 is attached to one end of the sliding member 142 and has a cylindrical structure that corresponds to the interior of the hollow structure of the downward extension portion 112, and is structured to magnetically attach to the upper surface of the moving weight 150.

As described above, the head speed adjustable golf practice club of the present invention is equipped with a first main body portion 110, a second main body portion 120, a rotation adjustment portion 130, and a position change portion 140 of a specific structure, which allows the separation distance between the magnet and the moving weight to be precisely adjusted, thereby changing the timing at which the moving weight separates from the magnet depending on the speed of the swing motion. This increases the precision with which the swing speed can be set, allows the swing speed to be set with easy operation, and provides a head speed adjustable golf practice club with a configuration that prevents defects due to the user's inexperience in operation.

The foregoing detailed description of the present invention has described only specific embodiments thereof. However, it should be understood that the present invention is not limited to the specific embodiments referred to in the detailed description, but rather includes all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention as defined by the appended claims.

In other words, the present invention is not limited to the specific embodiments and explanations described above, and anyone with ordinary skill in the art to which the present invention pertains can make various modifications without departing from the spirit of the present invention as claimed in the claims, and such modifications are within the scope of protection of the present invention.

100: Head speed adjusting golf practice club 110: First main body portion 111: Shaft binding portion 112: Downward extension portion 113: Rotation stopper 114: First screw binding portion 115: Second screw binding portion G1: Sliding groove G2: Pin seating groove 120: Second main body portion 121: Downward extension cylinder 122: Vent hole 123: Elastic member 124: Cylinder binding portion 125: Seat step forming portion 126: Pin insertion port P: Pin 130: Rotation adjustment portion 131: First rotating ring 132: Second rotating ring 133: Slide rotating ring 140: Position change portion 141: Variable storage portion 142: Sliding member 143: Through fastening port 145: Magnet 150: Moving weight 10: Shaft

Claims (1)

a first body portion 110 attached to one end of the golf swing training shaft 10, extending downward by a predetermined length, and having sliding grooves G1 extending vertically by a predetermined length and penetrating both sides of the first body portion 110;
a second body 120 having a hollow cylindrical structure, which is fixed to the lower end of the first body 110 by a pin P after fastening a bolt thereto and extends downward by a predetermined length;
a rotation adjusting part (130) disposed between the first body part (110) and the second body part (120), which has a ring structure mounted on the outer circumferential surface of the first body part (110) in a structure capable of fixed rotation, and has a thread structure formed on its inner surface to engage with the outer circumferential surface of the position changing part (140); and a position changing part (140) seated inside the sliding groove (G1) of the first body part (110), which is structured to advance or eject a predetermined depth from inside the first body part (110) according to the rotation adjusting part (130);
Including,
The first body portion 110 is
a shaft binding part 111 having a structure to be fastened to one end of the golf swing training shaft 10 and extending downward by a predetermined length;
a downward extension part 112 extending downward from the lower surface of the shaft binding part 111 by a predetermined length, elastically fastening a rotation stopper 113 to the upper surface of one side, and having a sliding groove G1 formed in the center of one side and having a structure penetrating to both sides;
a first threaded fastening portion 114 formed at a lower end of the outer circumferential surface of the downward extension portion 112 by a predetermined width and configured to be threadedly fastened to the inner surface of the second body portion 120;
a second threaded portion 115 formed at a lower end of the outer circumferential surface of the downward extension portion 112 by a predetermined width and spaced apart from the first threaded portion 114 to be threadedly engaged with an inner surface of the second body portion 120; and a pin seating groove G2 formed between the first threaded portion 114 and the second threaded portion 115;
Including,
The second body portion 120 is
a downward extension cylinder 121 having a hollow cylinder structure extended downward by a predetermined length, with a vent hole 122 formed in the center of the lower surface, forming a space within the hollow structure in which the moving weight 150 can move, and having an elastic member 123 built in to elastically support the lower surface of the moving weight 150 when it falls after detaching from the magnet 145;
a cylinder connection part 124 integrally formed at the upper end of the downward extension cylinder 121 and bolted to the second screw connection part 115 and the first screw connection part 114;
a seating step forming part 125 formed continuously along the outer circumferential surface of the upper end of the cylinder binding part 124 and configured to be in surface contact with the inner surface of the lower end of the rotation control part 130 so that the rotation control part 130 rotates at a fixed position; and a pin insertion hole 126 formed on one side of the upper part of the cylinder binding part 124 so that a pin P can be inserted in the direction of the pin seating groove G2;
Including,
The rotation adjusting unit 130 is
a first rotating ring 131, in which the rotation stopper 113 of the downward extension 112 is attached along the outer circumferential surface thereof to be elastically fastened so as to be capable of fixed rotation, and in which grooves engaging with the rotation stopper 113 are formed continuously at regular intervals along the inner circumferential surface thereof;
a second rotating ring 132 integrally formed at the lower end of the first rotating ring 131, extending downward by a predetermined length, and having a screw thread structure formed on its inner surface to engage with the outer circumferential surface of the position changing part 140; and a slide rotating ring 133 integrally formed at the lower end of the second rotating ring 132, making surface contact with the seating step forming part 125 and sliding;
Including,
The position change unit 140
a variable receiving portion 141 that is inserted into the sliding groove G1 and has a structure that allows the sliding position to be changed in the vertical direction, and has a structure in which threads are formed on both ends to be screwed together with the second rotating ring 132;
a sliding member 142 having a cylindrical structure that slides into the hollow structure of the downward extension 112 to a predetermined depth and has through-holes 143 formed on both sides of the upper portion thereof for inserting and fixing the variable receiving portion 141; and a magnet 145 attached to one end of the sliding member 142, having a cylindrical structure corresponding to the interior of the hollow structure of the downward extension 112, and having a structure that magnetically attaches to the upper surface of the moving weight 150;
A head speed adjustable golf practice club comprising: