EP0611316A1 - Ausgeglichener golfclub. - Google Patents

Ausgeglichener golfclub.

Info

Publication number
EP0611316A1
EP0611316A1 EP91918478A EP91918478A EP0611316A1 EP 0611316 A1 EP0611316 A1 EP 0611316A1 EP 91918478 A EP91918478 A EP 91918478A EP 91918478 A EP91918478 A EP 91918478A EP 0611316 A1 EP0611316 A1 EP 0611316A1
Authority
EP
European Patent Office
Prior art keywords
handle
golf club
club
mass
grams
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP91918478A
Other languages
English (en)
French (fr)
Other versions
EP0611316B1 (de
Inventor
Jean-Luc Veux
Benoit Vincent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TaylorMade Golf Co Inc
Original Assignee
TaylorMade Golf Co Inc
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 TaylorMade Golf Co Inc filed Critical TaylorMade Golf Co Inc
Publication of EP0611316A1 publication Critical patent/EP0611316A1/de
Application granted granted Critical
Publication of EP0611316B1 publication Critical patent/EP0611316B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • A63B53/005—Club sets
    • 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
    • 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
    • A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations

Definitions

  • An additional feature of the invention is that the mass distribution on the club is such that the mass of the grip and the handle represents 30 to 40% of the total mass of the club.
  • Another characteristic of the invention is that the grip is light and its mass is less than or equal to 35 grams.
  • FIG. 1 represents a simplified view of the club according to the invention
  • FIG. 2 represents a graph showing the positioning of an example of the club of the invention according to its characteristics compared to known traditional clubs
  • FIG. 3 represents a simplified view of a golf club of the prior art
  • FIG. 3a represents an enlarged detail of FIG. 3, in particular of the upper part of the club,
  • FIG. 3b represents the handle of the club of FIG. 3,
  • FIG. 4 represents a simplified view of a golf club according to the invention
  • FIG. 4a represents an enlarged detail of FIG. 4,
  • FIG. 4b represents the handle of the club of FIG. 4,
  • FIG. 5 represents a variant of FIG. 4,
  • FIG. 5a represents a detail of FIG. 5
  • FIG. 5b represents the handle of the club of FIG. 5
  • FIG. 5c represents an improvement of the club of FIG. 5,
  • FIG. 6 represents a golf club of the invention according to another embodiment
  • FIG. 7 represents a graph showing the variation of the LPE / Lc ratio as a function of the position of a counterweight on the handle of the club of FIG. 6.
  • the golf club of FIG. 1 comprises a handle (1) of length Is and of mass ms at the lower end (10) to which a head (2) of mass mt is secured. From the upper end (11) of the handle (1) is secured a handle (3) of mass mg and length Ig and extending over part of the length of the handle.
  • the length of the club (Le) is considered to be the length measured between a point O 'on the longitudinal axis (I, I') of the handle located 5 mm from the upper end or point O of the handle (3), and a point O "corresponding to 1
  • the present invention relates to an improved golf club more particularly of the "wood” type, as well as a set comprising such a club and having the same advantages as said club.
  • a golf club essentially comprises a handle commonly called a "shaft”, at the lower end of which is secured a head, or striking member, and at the upper end, a handle also called a "grip”.
  • the current trend is to make light golf clubs; on the one hand, to obtain a performance gain in terms of length and accuracy of the stroke, and on the other hand, to improve the playing comfort of the player; whether beginner or professional player.
  • the aim of the present invention is therefore to overcome the above-mentioned drawbacks, particularly by proposing a lean club, therefore efficient and whose dynamic balancing is identical or very close to that of the clubs preferred by most players.
  • the aim is also to offer a club set having the same advantages as the club thus created.
  • the club of the invention consists of a handle at the upper end of which is secured a grip and at the lower end, a head; the between 280 and 340 grams and the LPE / Lc ratio is less than 0.87, preferably between 0.87 and 0.85.
  • An additional advantageous characteristic of the invention consists in distributing the mass over the club in such a way that the sum of the mass of the handle (mg) and the mass of the handle (ms) is between 30 and 40% of the mass total of the club (MT), which allows to keep a traditional head mass greater than at least 190 grams.
  • Point 27 in FIG. 2 illustrates the position on the graph of an example club according to the invention having a total mass equal to 322 grams and an LPE / Lc ratio equal to 0.866.
  • the characteristics of such a club are presented in the following table: (for a static moment d2 of the scale lor thmi ue of the "swing-weight" measured at 14 inches or 355.6 mm from O )
  • Gg is the position of the center of gravity of the grip with respect to O; and Gs is the position of the center of gravity of the shaft with respect to O, the perpendicular projection on the axis (I, I ') of the center of gravity (20) of the head (2) of the club.
  • the club of the invention mainly concerns a "driver”, that is to say the club having the greatest length (Le) among the clubs of the same set. But as will be explained later the invention extends in the same way to any club of said set which have the same advantages as the "driver" as they have been defined before.
  • the "driver” is a club whose length (Le) can vary from 1041.4 mm (or 41 inches) for the shortest to 1143 mm (or 45 inches) approximately. Typically, the average length is around 1092.2 mm (43 inches).
  • the applicant has established a graph illustrated in FIG. 2 on which measurements made on 26 drivers on the market appear to be compared with a driver of the invention.
  • the total mass (MT) expressed in grams of the driver is shown on the abscissa and the ratio of the equivalent pendulum length (LPE) to the length of the club is shown on the ordinate.
  • the LPE is given in mm and corresponds to a length equivalent to that of a simple pendulum whose oscillation period (T) is equal to that of the club if it is mounted pivoting around a point 01 corresponding to the point of rotation of the club in the hands of the player. In our example, it is located on the axis (I, I ') at 101.6 mm (4 inches) from point O.
  • FIG. 2 The characteristic of the invention is illustrated in FIG. 2.
  • the applicant has noticed that among the so-called “heavy” drivers numbered from 1 to 11 having a mass greater than approximately 340 grams, only clubs 1 to 4 with an LPE / Lc ratio of less than 0.87 have satisfactory dynamic balancing during the "swing".
  • the clubs numbered from 5 to 11 have proved to be generally unsatisfactory, as have the so-called "light” clubs, that is to say those whose mass is less than 340 grams and numbered from 12 to 26.
  • clubs 12 to 26 have shown themselves to be more efficient in terms of speed of departure of the ball and therefore distance of the stroke played. This observation enabled the applicant to determine the characteristics of the driver of the invention whose total mass (MT) is less than 340 grams, preferably is variable along the handle and increases towards the end (11) of the handle so that the section is sufficient in the grip zone of the hands.
  • MT total mass
  • the handle (1) comprises a first portion (13a) in the form of a truncated cone of length Is1 partially or completely covered by the handle (3) of thin, substantially constant thickness of length Ig.
  • the handle includes a second remaining portion (13b) in the form of a trunk of cone of length Is2 also connecting to the first portion (13a).
  • the generator G1 of the first portion (13a) has an average angle ⁇ 1 relative to the axis (I, I ') and greater than the average angle ⁇ 2 formed between the generator G2 of the second portion (13b) and the axis (I, I ').
  • the generators G1 and G2 are rectilinear but it is accepted that they can have a slight curvature in particular for the generator G1 of the first portion (13a).
  • FIGS. 5 to 5c show another example of possible configuration of the handle (1) leading to the same advantages.
  • the handle (1) comprises a first upper frusto-conical portion (14a) of length Is1 completely or partially covered only by the handle (3) of length Ig.
  • a second frustoconical portion (14b) not covered by the handle extends to the lower end (10) of the handle.
  • the lower end (140a) of diameter d1 of the first portion (14a) is linked to the upper end of diameter d2 (140b) of the second portion (14b) via a third connection portion (14c ) of length Is3; the diameter d1 of the first portion being less than the diameter d2 of the second portion.
  • the generator G3 of the handle (3) can advantageously be confused with the generator G'3 of the second portion (14b). R In this way the handle is integrated flush with the handle (1).
  • the diameter d2 of the second portion being at any point greater than the diameter of a handle of the prior art like that of FIG. 3; the handle is more rigid in flexion and torsion than a conventional handle without being heavier.
  • Figure 5c shows an improvement made to the club of Figure 5 on which is added a connecting ring (16) covering the third connection portion (14c).
  • This ring can advantageously be made of viscoeastic material having damping properties for example.
  • the sleeves (1) of the examples in FIGS. 4b and 5b are preferably produced in a composite structure based on carbon fibers and organic resin of the epoxy type for example.
  • the manufacturing process for such sleeves is described in - Is being the moment of inertia of the handle with respect to Gs,
  • the lightening of the club can be obtained by choosing a handle whose mass (mg) is less than 35 grams, preferably between 25 and 35 grams.
  • a handle generally made of elastomeric material to have a thin and substantially constant thickness of the order of 1 to 2.5 mm.
  • the characteristics of mass (ms), position of the center of gravity (Gs) and inertia (Is) of the handle can be optimized by calculation.
  • FIG 3 shows a prior art golf club with a handle (1), a head (2) and a handle (3).
  • the handle (1) has a regular frustoconical shape, the weakest section of which is located at its lower end (1), which is embedded in the head (2), and the strongest section is located at its upper end (11 ) from which extends the handle (3).
  • regular tapered shape it is meant that the generator G of the truncated cone formed by the handle (1) is substantially rectilinear and forms an angle ⁇ with the median longitudinal axis (I, I ') as shown in Figure 3b.
  • the handle (1) of Figure 6 is made of composite material based on carbon fibers and resin.
  • the counterweight (4) can be arranged inside the handle (1) as shown in FIG. 6a.
  • the counterweight can consist of an elastomer plug or other deformable material. It is also possible to envisage having a flyweight (4) in the form of a ring on the external surface of the handle (1) as in the case of FIG. 6b. It can also fill a housing (17) provided for this purpose so as to come flush with the external surface of the handle as illustrated in FIG. 6c. Finally, the counterweight (4) can be integrated into the internal structure of the handle as shown in FIG. 6d.
  • the present invention also extends to a golf club set comprising at least one club of the invention and in which each club which composes it has an LPE / Lc ratio of less than 0.87, preferably between 0.87 and 0.85.
  • the other clubs in the set have a total mass greater than that of the club of the invention, if this one is the driver, due to the mass of the head which believes as the decreases in the set.
  • the head mass can vary from a minimum mass of 190 grams for a driver to a maximum mass of 350 grams for a putter.
  • each club can be balanced according to the traditional technique of static balancing known as "swing-werghting" without substantially modifying the LPE / Lc ratio for each club.
  • the technique of "swing-weîghting” consists in balancing each club in the set by modifying the head mass so as to have the same static moment measured at 355.6 mm (either 14 inches or 355.6 mm O).
  • FIG. 6 illustrates another embodiment of the invention.
  • the handle (3) is conventional and has a mass (mg) of between 45 and 55 grams, preferably 50 grams.
  • the handle (1) is very light and has a mass of less than 80 grams and includes a flyweight (4) located in a zone (15) located at a distance d from O 'equal to approximately 0.5 Le and of length equal to about 0.15 Le.
  • the flyweight has a mass between 1 and 40 grams.
  • the area (15) defined in the context of the invention corresponds to the area for which dynamic balancing is carried out by adding the minimum mass by the counterweight. This characteristic is illustrated as an example in the graph in FIG. 7 which shows the variation of the LPE / Lc ratio as a function of the position of the counterweight (4) relative to the point O '.
  • Curve C1 illustrates an example of a non-counterweight handle whose balancing is not satisfactory.
  • Curves C2 and C3 illustrate two examples with a weight of 12 and 16 grams respectively.
  • the handle comprises a first portion (13a) in the form of a truncated cone of length Is1, partially covered at least by the handle (3) of length Ig and connecting to a second portion (13b), said first frusto-conical portion (13a) having a generator G1 whose average angle l'angle1 relative to the longitudinal axis (I, I ") is greater than the angle ⁇ 2 means of the generator G2 of the second portion in the remaining frustoconical cone (13b) of length Is2 of the handle.
  • the handle comprises a first upper frustoconical portion (14a) of length Is1 partly covered at least by the handle (3) of length Ig, a second lower frustoconical portion (14b) not covered by the handle and extending to the lower end of the handle; the diameter d1 of the lower end (140a) of said first upper frustoconical portion (14a) being less than the diameter d2 of the upper end (140b) of said second lower frustoconical portion (14b) and said first and second portions (14a , 14b) frustoconical being connected by a third connection portion (14c) of length Is3.
  • Golf club set comprising several clubs of different length (Le), characterized in that it comprises at least one club according to claims 1 to 17 and in that each club of said set has an LPE / Lc ratio of less than 0.87 preferably between 0.87 and 0.85.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Golf Clubs (AREA)
EP91918478A 1991-10-17 1991-10-17 Ausgeglichener golfclub Expired - Lifetime EP0611316B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR1991/000813 WO1993007935A1 (fr) 1991-10-17 1991-10-17 Club de golf equilibre

Publications (2)

Publication Number Publication Date
EP0611316A1 true EP0611316A1 (de) 1994-08-24
EP0611316B1 EP0611316B1 (de) 1996-04-17

Family

ID=9409020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91918478A Expired - Lifetime EP0611316B1 (de) 1991-10-17 1991-10-17 Ausgeglichener golfclub

Country Status (3)

Country Link
US (2) US5467984A (de)
EP (1) EP0611316B1 (de)
WO (1) WO1993007935A1 (de)

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US5671923A (en) * 1991-01-14 1997-09-30 Huang; Ben Grip for golf shafts
EP0611316B1 (de) * 1991-10-17 1996-04-17 Taylor Made Golf Company, Inc. Ausgeglichener golfclub
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JP2007135963A (ja) * 2005-11-21 2007-06-07 Bridgestone Sports Co Ltd ゴルフクラブ用シャフト
JP4958698B2 (ja) * 2007-09-10 2012-06-20 Ｓｒｉスポーツ株式会社 ゴルフクラブ
US20090286617A1 (en) * 2008-05-15 2009-11-19 Voges Mitchell C VCM Golf Club Grip System
JP2010000155A (ja) * 2008-06-19 2010-01-07 Sri Sports Ltd ゴルフクラブ
US20130059674A1 (en) * 2009-05-14 2013-03-07 Mitchell C. Voges VCM Golf Club Grip System
US20100292021A1 (en) * 2009-05-14 2010-11-18 Voges Mitchell C VCM Golf Club Grip System
US8182360B2 (en) * 2010-01-27 2012-05-22 Acushnet Company Golf club with a rigid shaft band
US8241139B2 (en) * 2010-02-24 2012-08-14 Sri Sports Limited Golf club
US8951142B2 (en) 2010-02-24 2015-02-10 Sri Sports Limited Golf club
US8608586B2 (en) * 2011-09-01 2013-12-17 Richard E. Parente Golf putter
JP5420626B2 (ja) * 2011-11-22 2014-02-19 美津濃株式会社 アイアンゴルフクラブ
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JP5546701B1 (ja) * 2013-07-22 2014-07-09 ダンロップスポーツ株式会社 ゴルフクラブ
JP5546673B1 (ja) 2013-09-20 2014-07-09 ダンロップスポーツ株式会社 ゴルフクラブ
JP5546672B1 (ja) * 2013-09-20 2014-07-09 ダンロップスポーツ株式会社 ゴルフクラブ
JP2015150050A (ja) * 2014-02-12 2015-08-24 ブリヂストンスポーツ株式会社 ゴルフクラブシャフト、その特性調整方法及びゴルフクラブ
US9522313B2 (en) * 2014-12-22 2016-12-20 Taylor Made Golf Company, Inc. Counterbalanced putters
US20160250529A1 (en) * 2015-02-26 2016-09-01 Acushnet Company Golf club with improved weighting
EP3544700A1 (de) 2016-11-28 2019-10-02 Winston Products LLC Golfschlägergriff mit einem gewichteten frontteil
JP6946794B2 (ja) * 2017-07-10 2021-10-06 住友ゴム工業株式会社 ゴルフクラブ
JP6946793B2 (ja) * 2017-07-10 2021-10-06 住友ゴム工業株式会社 ゴルフクラブ
US10569147B2 (en) * 2017-10-23 2020-02-25 Eaton Intelligent Power Limited Flexible implement grip with randomly oriented cord fibers
US10486036B1 (en) * 2018-04-06 2019-11-26 Callaway Golf Company Putter with bi-material shaft
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JP7326850B2 (ja) * 2019-04-26 2023-08-16 住友ゴム工業株式会社 ゴルフクラブ
CN111351621A (zh) * 2019-10-11 2020-06-30 东莞市冠伦精密机械有限公司 一种高尔夫球快速杆头反弹系数自动检测机
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Also Published As

Publication number Publication date
US5467984A (en) 1995-11-21
WO1993007935A1 (fr) 1993-04-29
US5569097A (en) 1996-10-29
EP0611316B1 (de) 1996-04-17

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