[go: up one dir, main page]

WO1997045177A1 - Systeme de determination d'un type precis de club de golf et procede et appareil de selection de shafts de clubs de golf - Google Patents

Systeme de determination d'un type precis de club de golf et procede et appareil de selection de shafts de clubs de golf Download PDF

Info

Publication number
WO1997045177A1
WO1997045177A1 PCT/US1997/009451 US9709451W WO9745177A1 WO 1997045177 A1 WO1997045177 A1 WO 1997045177A1 US 9709451 W US9709451 W US 9709451W WO 9745177 A1 WO9745177 A1 WO 9745177A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
stiffness
flex
degrees
choice
Prior art date
Application number
PCT/US1997/009451
Other languages
English (en)
Inventor
Earl F. Smith
Original Assignee
Smith Earl F
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smith Earl F filed Critical Smith Earl F
Priority to DE69714443T priority Critical patent/DE69714443D1/de
Priority to EP97927907A priority patent/EP0910443B1/fr
Priority to AU32254/97A priority patent/AU719887B2/en
Priority to AT97927907T priority patent/ATE221405T1/de
Publication of WO1997045177A1 publication Critical patent/WO1997045177A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/36—Training appliances or apparatus for special sports for golf
    • A63B69/3623—Training appliances or apparatus for special sports for golf for driving
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/10—Non-metallic shafts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/42—Devices for measuring, verifying, correcting or customising the inherent characteristics of golf clubs, bats, rackets or the like, e.g. measuring the maximum torque a batting shaft can withstand
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/46—Measurement devices associated with golf clubs, bats, rackets or the like for measuring physical parameters relating to sporting activity, e.g. baseball bats with impact indicators or bracelets for measuring the golf swing
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/80—Special sensors, transducers or devices therefor
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/80—Special sensors, transducers or devices therefor
    • A63B2220/805—Optical or opto-electronic sensors
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/12—Metallic shafts

Definitions

  • the invention relates to methods and a system for precisely fitting a golfer to a selected stiffness of a golf shaft and to a selected flex choice of a golf shaft.
  • a long felt need exists for methods and means for precisely fitting a golfer to a particular golf shaft whose values of stiffness and flex choice are applicable to a player of a specific skill level in the game of golf.
  • Present day clubfitting systems and methods are vary expensive, complex and do not provide methods and means for precisely fitting a golfer to the most important part of a golf club, the golf shaft and its stiffness and flex point or kick point values, to allow a player to possess accuracy and consistency in his or her golf swing/shot performance.
  • FIGS. 1 - 6 contain the flow charts for the methods of operation of the present invention, which are shown in detail and which are referenced in the disclosure.
  • FIG. 7 shows an exemplary swing/shot analyzer device 10 which is utilized to test speed, angle, distance, deflection and path in multiple display functions.
  • FIG. 8 depicts certain displays of the swing/shot analyzer device 10.
  • FIG. 9 shows a system embodiment of the present invention.
  • the shot/swing analyzer currently used is the Miya Computer shot Analyzer, Model number SM 306-1 and 306-2 manufactured by Miyamae Ltd. of Japan.
  • This Miya Computer Shot Analyzer 10 records speed, angle, distance, deflection and path in multiple display functions. A comparable unit (current or future) could be used for the testing.
  • my swing shaft/selection analyzer will record the speed of the swing at impact using the golf club or clubs a player is currently playing.
  • demos are made available.
  • the shafts needed and used for testing will be recorded individually.
  • the customer will swing the club, on the swing analyzer a plurality of times; i.e., four (4) times; to establish the initial swing speeds.
  • Each individual reliable swing speed and swing will be recorded separately to afford comparison thereof to other recorded swing speeds and the test parameters of the shaft selection process.
  • the demo club in steel in the R stiffness as established by prior art, will be selected to begin the testing.
  • the process/method may proceed with the R stiffness in any flex choice for the initial test.
  • my swing shaft/selection analyzer may include a club selection switch 11 for any irons or woods for which speeds wish to be tested.
  • the Miya Shot Analyzer recording device I am currently using includes these options, which can include a full range of wood, iron and putter choices, as established by prior art. It is also possible to use various types of golf balls for the testing process. While it is desirable to test with golf balls, practice golf balls are also acceptable. With the use of practice balls or even golf balls, this allows the person doing the testing to offer this shaft fitting service in a confined area if an outdoor facility is not available. Either way is acceptable.
  • EXAMPLE The customer wants to buy a full set, or an individual club which can be either woods or irons and expects to know his potential speed with a given product to give him or her confidence. The following minimal choices should be available: One wood or driver, 3 wood, 5 wood. Woods are now available up to and including a number 15 wood. These options should be available in case of need. In Irons: 3 iron, 4 iron 5 iron, 6 iron, 7 iron, 8 iron, 9 iron, Pitching Wedge and Putter. 1 iron, 2 iron and a full range of wedges are available on the market. Other options of irons should be available for testing if desired. This is another function of the machine 10 that does not include my invention analysis method.
  • the customer will swing the club, a plurality of times, i.e., four (4) times, and the analyzer 10 will record the club head speed of each individual swing. If the path of the swing does not pass through the sensors at the right or acceptable/reliable angles, the swing must be repeated. In order to proceed with the testing one needs reliable swing speeds to continue testing to arrive at the proper selection of stiffness and flex choice.
  • UNRELIABLE SWING SPEEDS EXAMPLE If speeds of 110, 50, 50 and 110 mph would be generated and recorded, the descending angle of the club is too steep. This is evident by the large fluctuation of these various recorded speeds. The 110 mph or the 50 mph speeds recorded collectively are thus unreliable and should not be used for the analysis/test in this instance.
  • Another example would be recorded speeds of 60, 90, 90, and 60 mph. In this case, you have to retest, the club head path as it crosses the sensors 13A and 13B is again too steep. In order to continue testing, reliable recorded speeds should not vary from each other more than 10 to 15 mph at a maximum to insure acceptable parameters for selection of the correct shaft by my inventive process/method.
  • Reliable or acceptable swing speeds are defined as speeds recorded a plurality of, i.e., four (4) times that do not exceed/vary from one another more than 15 mph in order to provide and insure correct shaft selection.
  • Acceptable test speeds could be 77, 92,
  • Any complete series of reliable swing test speeds i.e. four (4) times, that register less than or equal to 85 mph; or, any complete series of reliable swing speeds, i.e. four (4) times, that register more than 86 mph in the testing will verify the selection process of the proper stiffness of the correct shaft selected for further testing. This insures accurate selection of the shaft process as the analysis continues.
  • the shaft swing/selection analyzer 10 will record the speeds of the swing of each club chosen for testing and display it on the monitor in order to determine what will be the next sequence that takes place, and the reliable speeds are recorded.
  • a question is asked of the customer from a display screen 18, "Has customer completed swings, YES or NO?". If the answer is yes, then the customer is asked if he or she wants to continue the analysis, YES or NO? The process will end if the answer is, NO.
  • the software may be customized for additional information. However, it does not change my inventive process/methods.
  • the customer will continue the testing. If the customer has a physical limitation or has special needs, the invention system and methods insure the final product will take into consideration any special needs, which is shown in FIG. 2, an information sheet entitled, "Customer's Special Needs,” will enable the operator to incorporate the information into the finished documentation and enable the operator an the one being tested to participate. It does not change any part of the process and the testing continues.
  • the software may be customized for additional information, however, it does not change my inventive process/methods.
  • the instructor supervising the tests may choose to have the golfer provide another set of reliable speeds for testing in another stiffness.
  • the comparison between stiffnesses should be made with the same clubs (example: 5 irons) for best results.
  • the club head speeds are recorded, i. e. four (4) times, and the same procedure used with the golfers own equipment is followed.
  • the reliable speeds recorded will provide the necessary information to select the proper shaft stiffness to continue the testing.
  • the customer then swings the club with the shaft selected for testing according to the average miles per hour or decision box it falls within, which is shown in FIGS. 3 and 4. This also helps establish the parameters to continue the testing if any confusion exists.
  • the shaft selected for the tested and recorded reliable swing speeds are:
  • Shafts with different flex points, or kick points, or flex choices can vary according to prior art as provided by different manufacturers, but the stiffness parameters must be adhered to in this portion of the testing based on the reliable speeds recorded. Once the stiffness parameters have been established, it is advisable to have a minimum of four (4) different flex choices or kick points in a specific stiffness selected for testing. It has been my experience that two (2) shafts are not enough and as many as 100 shafts, as advocated by some, are too many. The basic shafts within a specific stiffness with different flex or kick points should include: low, mid, mid-high and high, as established by the prior art. There are other combinations or variations as established by prior art, and in the future there will be other combinations. It has been my experience that this latitude will give the instructor/clubfitter or operator the greatest scope of choice for the individual golfers with the wide range of swings associated with golf as established by prior art, current or future.
  • shafts in order of stiffness as established by prior art are and include: L, A, R, S, X, alone or in combinations, as established by proprietary rights of the different manufacturers.
  • Examples of combination shafts as established by prior art are and include: A/L, R/S.
  • Individual shafts include FM Precision 7.5FM, 8.0FM and 8.5FM. Other combinations and/or individual stiffness are 5 available on the market today, as established by prior art.
  • taper tip shafts were the choice of manufacturers for golf equipment in the past there are still a few companies that utilize them in the manufacturing of golf equipment.
  • three (3) to eight (8) 0 individual golf shafts were carried in stock to build a set of clubs in a specific stiffness.
  • Individual shaft choices such as L, A, R and S could be carried in stock as separate shafts in a specific stiffness.
  • the shape of the shaft at the tip tapered to a predetermined diameter. For example at the top of the hosel where the shaft is inserted the diameter would be .370 when seated in the 5 club head, and at the bottom of the hosel where the shaft is inserted (bottom or seated) the diameter would be for example .355 thus creating the taper effect.
  • My shaft swing/selection analyzer method inventions will record and properly test and/or select any shaft made now by prior, current or future art.
  • the shaft or shafts in that stiffness that have been selected are now ready for testing.
  • Each individual shaft that has been selected has a different FLEX POINT, KICK POINT OR FLEX CHOICE as they are sometimes referred to, as established by prior art.
  • ANGLE/DEGREES the club head passed through the sensors at impact either open, closed or square.
  • the "ANGLE/DEGREES,” open or closed at impact, is now the first consideration in the first three choices offered. Zero degrees as recorded at impact with the i.e. four (4) swings, is the perfect angle of choice regardless of the reliable speeds recorded in a specific stiffness being tested in the four (4) flexes as illustrated in the following first three (3) examples.
  • the fourth choice uses a different set of parameters to arrive at the desired conclusion or choice. You will note in the fourth choice the path of the club head at impact is the prime consideration, and the" ANGLE/DEGREES" is the second consideration.
  • the 1st choice is Zero to eight degrees, open or closed at impact; 2nd choice is Zero to 11 degrees, open or closed at impact; 3rd choice is Zero to 15 degrees, open or closed at impact; 4th choice, greater than 15 degrees, open or closed at impact.
  • Cutting instructions for that specific choice are included in the final finished product and the process will end. Shaft cuts or tip cuts as established by prior, current or future art and recommended by the manufacturer may or may not be applicable in my inventive process.
  • inventive methods and system of my invention may be implemented into a fully automated software controlled system as shown in FIG. 9, and operator intervention may also be utilized. Furthermore, this is applicable to the determination of unreliable or reliable swing speeds. It should be within the skill of one ordinary skilled in the art to devise software for determining a reliable swing speed or an unreliable swing speed, by and within the invention teachings provided herein.
  • My inventive methods and system may be provided in a fully automated system, or a semi-automated system which allows for operator intervention, in accordance with the present disclosure and the flow charts provided herein.
  • EXAMPLE- 1 st CHOICE 0 to 8 DEGREES. OPEN OR CLOSED AT IMPACT
  • the four (4) shafts in a specific stiffness in different flex choices offered to determine the selection process of a specific flex in a specific stiffness, as shown in the example above, in order of the preferred choices, are as follows.
  • the first or optimum choice as shown in the example is: MID FLEX.
  • MID FLEX In all instances it is always desirable to have the ANGLE/DEGREES record ZERO for the plurality of swings, i.e. four (4).
  • the choice would be the HIGH FLEX because the angles/degrees would equal to zero (0) and the reliable recorded speeds of the HIGH FLEX are greater than those recorded for mid- flex.
  • the HIGH FLEX in the A shaft would be the shaft selection of choice. It is always better to choose the choice of flex as close to zero (0) as would be recorded. Also, it is permissible to record only three (3) swings in the testing process with reliable club head speeds and select the proper shaft. Also, it is important to note that the flex choice criteria may be based upon the one wherein the average of the angle/degrees, within the range of 0-8, is closest to zero degrees.
  • the MID/HIGH flex shaft in that particular stiffness of shaft selected for the test would be the proper selection because the angle/degrees are closest to zero.
  • the third ANGLE/DEGREE would be changed to read 11 degrees instead of 12 degrees.
  • the selection would still be the MID/HIGH flex even though the ANGLE/DEGREES now fall into the second choice category of 0 to 11 degrees and the reliable speeds collectively are greater overall because the ANGLE/DEGREES of the four (4) speeds recorded in the MID/HIGH flex are still closer to 0 degrees, open or closed at impact.
  • the selection in this 2 nd choice example is the MID HIGH for the first priority choice in this second example.
  • the HIGH FLEX is the shaft selected for the particular stiffness being tested. In this instance the parameters fall within the 0 to 15 degrees , open or closed at impact with a plurality of swings i.e. four (4) times.
  • the HIGH FLEX is the shaft of choice in this instance.
  • the HIGH FLEX has the best overall ANGLE/DEGREES in relationship to zero (0) degrees at impact, o- > en or closed 0 to 15 degrees.
  • the flex with the highest REL ⁇ BLE speeds recorded and the ANGLE/DEGREES in relationship to zero (0) degrees open or closed at impact, is the selection to be made.
  • the selection in this flex choice is the HIGH FLEX. If the choice falls within these parameters 0 to 15 degrees, open or closed at impact, the selection is made and then go to the print out sheet with the final instructions.
  • angle/degrees ranges of 0-8 degrees, 0- 11 degrees, and 0-15 degrees are created and used in view of the various different levels of play existent in golfers today and in the past. This affords a more precise selection criteria for selecting the proper or best flex choice for the one being tested. Of course, one could only use an angle/degrees range of 0-15 degrees and select on the basis of closest to zero degree, or angle/degrees average closest to zero degrees, but such is probably not as accurate as the 0°-8°, 0°-11°, and 0°-15° selection criteria.
  • the first priority is the SWING PATH (deflection) of the club head at moment of impact.
  • the invention analyzer will choose the shaft with the best results of the four (4) flex choices in that stiffness chosen for testing.
  • the three (3) choices as displayed by the analyzer will be selected in this order: 1st-STRAIGHT, 2nd- INSIDE OUT, 3rd-OUTSIDE IN.
  • Straight in most instances, is the first swing path of choice because it will give us the most consistency or accuracy. The path/paths with the most consistency is what is preferable. Straight will give you the lowest angles/degrees at impact, either open or closed.
  • the first choice is the LOW FLEX shaft in the stiffness A (speeds between 79 and 85 mph) being tested in this example.
  • the ANGLE/DEGREES and the reliable speeds are consistent also.
  • the direction of the paths of the clubs being tested is considered first, there is a pattern or consistency as it records in that flex overall generally or in this instance the LOW FLEX.
  • the second flex choice in this example would be the MID HIGH FLEX based on the stiffness selected for testing. All the parameters fall within the fourth choice so either choice would be acceptable. If the customer does not have a problem getting the golf ball airborne the MID HIGH FLEX shaft will give him or her consistent ball flight at their level of play. The operator will observe the flight of the golf ball being struck while testing in this choice and aid the golfer in the final selection based on his or her experience if there is more than one choice.
  • the documentation contained within the finished increments for cutting instructions and shaft choice will appear on the display 18, and/or will be provided by printer 20 and that will be the selection.
  • the selection process is predicated on the 1st, 2nd, 3rd or 4th choice as indicated above in that o specific order.
  • the invention analyzer will choose the best flex choice in the shaft 5 stiffness that was selected to test with.
  • the computer program will through a series of deductions eliminate the shafts that are not acceptable within the parameters I have outlined.
  • four different flex or kick points in the desired shaft stiffness are tested. These examples of the four (4) choices above illustrate the use of my method/invention.
  • the fourth o choice through a series of deductions operates to eliminate the shafts that are not within the parameters I have outlined also.
  • the difference being in the first three (3) choices the first priority was angle/degrees and the fourth choice the first priority was the swing path (deflection).
  • the deductive reasoning will choose one of the four (4) choices in the specific order they are programmed to determine the shaft of choice.
  • the monitor 18 will display the shaft choice on the screen and the documentation contained within that screen will be incorporated into the finished information sheet and the process will end.
  • the final print out sheet will also have information that can only be obtained through physical measurements of the person taking the test. The additional measurements consists of final grip size in terms of diameter, proper lie and finished length. A final print out sheet containing the information needed is then printed in order to build the proper golf equipment.
  • FIG. 9 a schematic block diagram of the system invention which comprises: a software or program controlled processor means 14 connected via appropriate interface means 12 with a golf swing analyzer means 10.
  • the depicted system includes stored data means 16, a monitor/display means 18, and printer means 20.
  • the system invention may be implemented into a fully automated software controlled system, as shown in FIG. 9, and operator intervention may also be utilized. Furthermore, this is applicable to the determination of unreliable or reliable swing speeds. It should be within the skill of one ordinary skilled in the art to devise software for determining a reliable swing speed or unreliable swing speed, by and within the invention teachings provided herein.
  • a semi-automated system which allows for operator intervention, in accordance with the present disclosure and the flow charts provided herein, may be provided.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Golf Clubs (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

L'invention concerne des procédés et un système de détermination d'un type précis d'un club de golf en fonction de la rigidité voulue d'un shaft de club de golf et de la flexion choisie dudit shaft de club. Il existe aujourd'hui un besoin longtemps senti de disposer de procédés et de systèmes permettant de déterminer avec précision un club de golf dont le shaft se caractérise par des valeurs de rigidité et de flexion adaptées à un joueur de golf en fonction de son niveau technique particulier dans le jeu de golf. Les systèmes et procédés d'adaptation de clubs de golf qui existent actuellement sont très onéreux et complexes et n'offrent pas au golfeur des possibilités de déterminer avec précision les caractéristiques de la partie la plus importante d'un club de golf (à savoir le shaft du club avec ses valeurs de rigidité et de flexion ou de déflexion), pour permettre à un joueur d'acquérir précision et régularité dans la réalisation de son mouvement/coup de golf. Les procédés novateurs et le système de l'invention ci-décrits répondent à ce besoin longtemps senti, et permettent à un joueur de choisir avec précision un shaft de golf.
PCT/US1997/009451 1996-05-29 1997-05-28 Systeme de determination d'un type precis de club de golf et procede et appareil de selection de shafts de clubs de golf WO1997045177A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE69714443T DE69714443D1 (de) 1996-05-29 1997-05-28 Präzisionsgolf-schlägeranpassungssystem und verfahren und einrichtung zur auswahl des golfschlägerschaftes
EP97927907A EP0910443B1 (fr) 1996-05-29 1997-05-28 Systeme de determination d'un type precis de club de golf et procede et appareil de selection de shafts de clubs de golf
AU32254/97A AU719887B2 (en) 1996-05-29 1997-05-28 Precise fit golf club fitting system and golf shaft selection method and apparatus
AT97927907T ATE221405T1 (de) 1996-05-29 1997-05-28 Präzisionsgolf-schlägeranpassungssystem und verfahren und einrichtung zur auswahl des golfschlägerschaftes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1857496P 1996-05-29 1996-05-29
US60/018,574 1996-05-29

Publications (1)

Publication Number Publication Date
WO1997045177A1 true WO1997045177A1 (fr) 1997-12-04

Family

ID=21788633

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/009451 WO1997045177A1 (fr) 1996-05-29 1997-05-28 Systeme de determination d'un type precis de club de golf et procede et appareil de selection de shafts de clubs de golf

Country Status (6)

Country Link
EP (1) EP0910443B1 (fr)
AT (1) ATE221405T1 (fr)
AU (1) AU719887B2 (fr)
DE (1) DE69714443D1 (fr)
ES (1) ES2177983T3 (fr)
WO (1) WO1997045177A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000044450A1 (fr) * 1999-01-29 2000-08-03 Orthopedic Systems Inc. Systeme de surveillance du vol d'une balle de golf
WO2000043936A3 (fr) * 1999-01-22 2001-11-15 Chip Shot Golf Corp Système d'équipement personnalisé de cannes de golf
US7209576B2 (en) 2002-02-07 2007-04-24 Accu-Sport International, Inc. Methods, apparatus and computer program products for processing images of a golf ball
US7214138B1 (en) 1999-01-29 2007-05-08 Bgi Acquisition, Llc Golf ball flight monitoring system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5294110A (en) * 1992-10-27 1994-03-15 Jenkins James J Portable golf shot analyzer and club selector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4685682A (en) * 1985-06-10 1987-08-11 Isabell James T Adjustable flex golf club
JPS6228639A (ja) * 1985-07-31 1987-02-06 Maruman Golf Kk ゴルフクラブシャフトの撓みとねじれの合成硬さ測定装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5294110A (en) * 1992-10-27 1994-03-15 Jenkins James J Portable golf shot analyzer and club selector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000043936A3 (fr) * 1999-01-22 2001-11-15 Chip Shot Golf Corp Système d'équipement personnalisé de cannes de golf
WO2000044450A1 (fr) * 1999-01-29 2000-08-03 Orthopedic Systems Inc. Systeme de surveillance du vol d'une balle de golf
US7214138B1 (en) 1999-01-29 2007-05-08 Bgi Acquisition, Llc Golf ball flight monitoring system
US7209576B2 (en) 2002-02-07 2007-04-24 Accu-Sport International, Inc. Methods, apparatus and computer program products for processing images of a golf ball

Also Published As

Publication number Publication date
AU719887B2 (en) 2000-05-18
DE69714443D1 (de) 2002-09-05
EP0910443A1 (fr) 1999-04-28
ES2177983T3 (es) 2002-12-16
AU3225497A (en) 1998-01-05
EP0910443B1 (fr) 2002-07-31
ATE221405T1 (de) 2002-08-15

Similar Documents

Publication Publication Date Title
US6719648B1 (en) Precise fit golf club fitting system and golf shaft selection methods and apparatus
US5879241A (en) Matched set of golf clubs and method of producing the same
AU669177B2 (en) Golfing apparatus and method for golf play simulation
US7166035B2 (en) Systems and methods for fitting golf equipment
US6702692B1 (en) Precise fit golf club fitting system and golf shaft selection method and apparatus
JPH0512831Y2 (fr)
TWI458526B (zh) 提供使用者客製化練習環境之虛擬高爾夫模擬裝置，透過網路與該裝置連接的伺服器以及使用虛擬高爾夫模擬之使用者客製化練習環境提供方法
US7559852B2 (en) Face markings for golf clubs
US20100151956A1 (en) Methods, apparatus, and systems to custom fit golf clubs
US7056225B1 (en) Method of making a single flex matched set of golf clubs
US20150375073A1 (en) Golf equipment fitting system and golf equipment fitting program
US7908907B1 (en) Method of matching golfer skills with golf ball performance
US11648443B2 (en) Custom golf club fitting
Hocknell et al. Engineering ‘feel’in the design of golf clubs
KR101235283B1 (ko) 가상 골프 시뮬레이션 장치 및 이와 네트워크 연결되는 서버와, 가상 골프 시뮬레이션을 이용한 사용자 맞춤 레슨 제공방법
US4134590A (en) Customizable golf parlor game
EP0910443B1 (fr) Systeme de determination d'un type precis de club de golf et procede et appareil de selection de shafts de clubs de golf
KR20200094832A (ko) 스윙 데이터 기반 최적화 골프클럽 추천 시스템 및 방법
US5533386A (en) Methods of using an acceleration responsive device
US6916251B2 (en) Golf club set and golf club shaft set
US20020142855A1 (en) Matched set of golf clubs and method of producing the same
US8491406B2 (en) Performance enhanced golf club shafts
US7056223B2 (en) Method for producing golf clubs that are individually adapted to the respective height of golf players
JP4525092B2 (ja) ゴルフクラブシャフトの剛性分布に対するゴルフスウィングの感度の評価方法およびゴルフスウィングの感度の評価装置
US20020132681A1 (en) Tempo maintaining golf clubs

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE HU IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1997927907

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 97543035

Format of ref document f/p: F

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 1997927907

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: CA

WWG Wipo information: grant in national office

Ref document number: 1997927907

Country of ref document: EP