US20200139206A1 - Device for adjusting series of golf clubs and series of golf clubs thus adjusted - Google Patents

Device for adjusting series of golf clubs and series of golf clubs thus adjusted Download PDF

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Publication number
US20200139206A1
US20200139206A1 US16/676,146 US201916676146A US2020139206A1 US 20200139206 A1 US20200139206 A1 US 20200139206A1 US 201916676146 A US201916676146 A US 201916676146A US 2020139206 A1 US2020139206 A1 US 2020139206A1
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United States
Prior art keywords
shaft
golf club
mass
adjusting
golf
Prior art date
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Abandoned
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US16/676,146
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English (en)
Inventor
André Thaon d'Arnoldi
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Thaon Darnoldi Andre
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André Thaon d'Arnoldi
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Publication date
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Publication of US20200139206A1 publication Critical patent/US20200139206A1/en
Abandoned legal-status Critical Current

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    • 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
    • A63B53/00—Golf clubs
    • A63B53/02—Joint structures between the head and the shaft
    • 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
    • A63B53/04—Heads
    • A63B53/06—Heads adjustable
    • 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
    • A63B53/00—Golf clubs
    • A63B53/14—Handles
    • 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
    • A63B60/02—Ballast means for adjusting the centre of mass
    • 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
    • A63B60/06—Handles
    • A63B60/22—Adjustable handles
    • A63B60/24—Weighted handles
    • A63B2053/025—
    • 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
    • A63B53/04—Heads
    • A63B2053/0491—Heads with added weights, e.g. changeable, replaceable
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
    • A63B2102/32—Golf
    • 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
    • A63B53/02—Joint structures between the head and the shaft
    • A63B53/022—Joint structures between the head and the shaft allowing adjustable positioning of the head with respect to the shaft
    • A63B53/023—Joint structures between the head and the shaft allowing adjustable positioning of the head with respect to the shaft adjustable angular orientation
    • A63B53/025—Joint structures between the head and the shaft allowing adjustable positioning of the head with respect to the shaft adjustable angular orientation lie angle only, i.e. relative angular adjustment between the shaft and the club head about an axis parallel to the intended line of play when the club is in its normal address position

Definitions

  • the present invention relates to the field of golf. More specifically, the invention relates to a method for adjusting a series of golf clubs as well as a series of golf clubs adjusted using this method.
  • the movement performed in order to propel the ball with the golf club demands great precision from the player. To be able to repeat this movement irrespective of the club used by the player, it is desirable to adjust the golf clubs such that the player finds the same sensations regardless of which club is used.
  • the most widely used method consists of adjusting a player's golf clubs with a constant swingweight.
  • the swingweight is a well-known golf parameter characterizing the static equilibrium of the golf club. It is measured using a swingweight scale (such as the Professional Digital Swingweight Scale marketed by AUDITOR under reference 020711 or the Clubmaker Classic Swingweight Scale marketed by AUDITOR under reference 020320). It can also be calculated using the equation described in detail in the mathematical formula [Math 1] of the examples below. Some players may prefer to have more weight at the head or, on the contrary, in the grip.
  • the swingweight characterizes this static distribution of the mass.
  • the moment of inertia of the golf club characterizes the resistance to rotation of the golf club along an axis passing through the proximal end of the shaft (that is to say, the end of the shaft at the grip).
  • the moment of inertia is measured using a moment of inertia scale (such as the MOI Speed Match System marketed by AUDITOR under reference 070206). It can also be calculated using the equation described in detail in the mathematical formula [Math 2] of the examples below.
  • the player By choosing a constant moment of inertia for each golf club, the player will find similar sensations, from club to club, during the swing, in particular during the transition between the backswing and the downswing as well as during the release. For two golf clubs having the same swingweight and two different moments of inertia, the player will have the same sensation before swinging, but a different sensation during the movement, and in particular during the transition between the end of the backswing and the beginning of the downswing, as well as the crucial moment of release before striking the golf ball. Conversely, for two golf clubs having the same moment of inertia and two different swingweights, the player will have the same sensation during the movement, but a different sensation in the starting position before the swing when he weighs the clubs in his hands.
  • the adjustment of the moment of inertia is done by modifying the mass at the head of the golf club. This modification systematically causes a modification of the swingweight. At this time, no method is known making it possible to adjust a series of golf clubs with a constant moment of inertia and a constant swing. Such an adjustment would allow the golf player to obtain homogeneous sensations, from club to club, both in his starting position as well as during movement.
  • One of the aims of the present invention is therefore to propose a method for adjusting the golf clubs of a player with a constant moment of inertia and constant swingweight in order to promote the regularity of the player and allow him to have the same sensation regardless of the golf club used.
  • the inventor has noted that the modification of the mass near the proximal end of the shaft causes a modification of the swingweight while modifying the moment of inertia very little or not at all. Indeed, the moment of inertia characterizes the resistance to rotation of the golf club along an axis passing through the proximal end of the shaft; the addition or removal of mass on, or near, the axis of rotation has no impact on the setting in rotation.
  • the inventor uses this feature to allow the adjustment of the swingweight of a golf club without modifying the moment of inertia thereof.
  • the present invention relates to a method for adjusting a series of golf clubs each comprising a shaft, a head at the proximal end of the shaft and a grip at the distal end of the shaft; said method comprises the following steps:
  • the adjustment of the mass of the shaft near the proximal end of the shaft and/or the adjustment of the mass of the grip is done without modifying the moment of inertia of the club.
  • the adjustment of the mass of the head of each golf club and/or the adjustment of the mass of the shaft of each golf club near the distal end of the shaft is therefore done before adjusting the mass of the grip of each golf club and/or adjusting the mass of the shaft of each golf club near the proximal end of the shaft.
  • a series of golf clubs is obtained in which each golf club has a substantially identical moment of inertia and a substantially identical swingweight.
  • one of the golf clubs from the series of golf clubs serves as a reference; this golf club cannot be subject to adjustments. This is generally the golf club that is best suited to the player.
  • the adjustment of the moment of inertia is done by adjusting the mass of the head and/or adjusting the mass of the shaft near the distal end of the shaft.
  • at least one tip weight is added or removed in the head.
  • Some golf heads typically have a cavity in which it is possible to insert or remove one or several tip weights thus allowing an adjustment of the mass of the head.
  • These tip weights typically have a mass of several grams. According to one embodiment, the mass of a tip weight is 2, 3, 4, 5, 6, 7, 8, 9 or 10 g.
  • powder preferably metal powder such as tungsten powder is added to or removed from the head, in particular the cavity of the head.
  • at least one tip weight is added to or removed from the shaft, near the distal end of the shaft—this distal end of the shaft generally penetrates inside the head so as to allow the connection between the shaft and the head.
  • the mass of such a tip weight is 2, 3, 4, 5, 6, 7, 8, 9 or 10 g.
  • the adjustment of the swingweight is done by adjusting the mass of the shaft near the proximal end of the shaft and/or by adjusting the mass of the grip.
  • the grip in order to adjust the mass of the grip, is replaced by a grip with a different mass.
  • the difference in mass is located near the proximal end of the grip, for example by using a different material.
  • At least one tip weight is added to or removed from the grip, preferably near the proximal end of the grip.
  • the mass of a tip weight is 2, 3, 4, 4, 5, 6, 7, 8, 9 or 10 g.
  • at least one tip weight is added to or removed from the shaft near the proximal end of the shaft.
  • the mass of a tip weight is 2, 3, 4, 4, 5, 6, 7, 8, 9 or 10 g.
  • an intermediate sleeve is used. This intermediate sleeve is inserted by friction into the proximal end of the shaft and contains one or several tip weights.
  • the method according to the invention also comprises adjusting the address position of each golf club by modifying the length of the shaft and/or the lie angle, such that each golf club has not only a substantially identical swingweight and moment of inertia, but also a substantially identical address position.
  • This step for adjusting the address position of each golf club is carried out before adjusting the moment of inertia of each golf club.
  • This step for adjusting the address position of each golf club can also be carried out after adjusting the swingweight of each golf club.
  • the invention also relates to a series of golf clubs adjusted using the method according to the invention.
  • the series of golf clubs is a series of irons.
  • the series of golf clubs is a series of woods.
  • Near the proximal end of the shaft refers to a small distance from the proximal end of the shaft in light of the length of the shaft (for example at a distance from the proximal end of the shaft smaller than 20%, 10%, 5% or preferably 1% of the total length of the shaft) or at the proximal end of the shaft.
  • Near the distal end of the shaft refers to a small distance from the distal end of the shaft in light of the length of the shaft (for example at a distance from the distal end of the shaft smaller than 20%, 10%, 5% or preferably 1% of the total length of the shaft) or at the distal end of the shaft.
  • Address position refers to the height of the golf club when the head is in contact with the ground.
  • distal refers to the part furthest from the player's hands when the player is holding the club.
  • “Lie angle” refers to the angle formed by the shaft with the sole of the head of the club.
  • Proximal refers to the part closest to the player's hands when the player is holding the club.
  • Series of golf clubs within the meaning of the present invention refers to at least two golf clubs belonging to the same family; in other words, at least two irons or at least two woods, preferably at least three irons or at least three woods, still more preferably at least four irons or at least four woods.
  • a series of golf clubs can comprise at least two woods and at least two irons, at least three irons and at least three woods, or at least four irons and at least four woods.
  • Substantially identical means identical to within plus or minus 1%, preferably identical to within plus or minus 0.1%.
  • Substantially identical moment of inertia means a moment of inertia identical to within plus or minus 1%, preferably identical to within plus or minus 0.5%, even more preferably identical to within plus or minus 0.1%.
  • “Substantially identical swingweight” means a swingweight value (see FIG. 1 ) identical to within 1 point, preferably identical to within 0.5 point, even more preferably identical to within 0.1 point.
  • Substantially identical address position means an identical address position to within plus or minus 3 millimeter, preferably identical to within plus or minus 2 millimeter, even more preferably identical to within plus or minus 1 millimeter.
  • “Swingweight” refers to the static equilibrium of a golf club. This static equilibrium of the golf club can for example be measured by the Professional Digital Swingweight Scale marketed by AUDITOR under reference 020711 or the Clubmaker Classic Swingweight Scale marketed by AUDITOR under reference 020320.
  • FIG. 1 shows the swingweight scale as a function of the swingweight value obtained using formula [Math 1] or a swingweight scale.
  • FIG. 2 schematically illustrates a golf club.
  • FIG. 3 schematically illustrates a golf head comprising a tip weight.
  • FIG. 4 schematically illustrates the proximal end of a grip and a shaft in which a tip weight is inserted.
  • FIG. 5 schematically illustrates the address position (A), the length (L) and the lie angle (Li) of a golf club.
  • FIG. 2 illustrates a golf club ( 1 ) comprising a shaft ( 2 ) connecting a head ( 3 ) to a grip ( 4 ). Each golf club from a series of golf clubs comprises these 3 elements.
  • each golf club has a substantially identical moment of inertia and a substantially identical swingweight
  • the masses are adjusted.
  • one of the golf clubs serves as a reference. This club may not be subject to any adjustment or may be subject to an adjustment desired by the user.
  • the mass of the head of each golf club and/or the mass of the shaft of each golf club near the distal end of the shaft is adjusted, such that each golf club has a substantially identical moment of inertia.
  • this adjustment can be done by adding a tip weight ( 5 ) into the head ( 3 ) of the golf club.
  • this tip weight is introduced at the end of the orifice serving to connect the shaft ( 2 ) and the head ( 3 ).
  • the moment of inertia is typically set within a range of values from 1800 to 2800 kg ⁇ cm 2 .
  • the mass of the grip of each golf club and/or the mass of the shaft of each golf club near the proximal end of the shaft is adjusted, such that each golf club has a substantially identical swingweight.
  • this adjustment can be done by adding a second tip weight ( 6 ) into the shaft ( 2 ) at the proximal end of the shaft under the grip ( 4 ).
  • This adjustment of the swingweight is done with a constant moment of inertia.
  • the swingweight is typically set within a range of swingweight values from ⁇ 10 to 8, i.e. within a range of swingweight scale from C 0 to D 8 .
  • the swingweight can be calculated as follows (cf. Computing Heft, The Tutleman site, Oct. 8, 2018,
  • the moment of inertia can be calculated as follows (cf.
  • This iron has a swing value of 4 and a moment of inertia of 410,596 g ⁇ inch 2 . According to the swingweight scale illustrated in [ FIG. 1 ], this iron therefore has a swingweight of D 4 .

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Golf Clubs (AREA)
US16/676,146 2018-11-07 2019-11-06 Device for adjusting series of golf clubs and series of golf clubs thus adjusted Abandoned US20200139206A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1871403A FR3088013B1 (fr) 2018-11-07 2018-11-07 Procede de reglage d’une serie de clubs de golf et serie de clubs de golf ainsi reglee
FR1871403 2018-11-07

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US20200139206A1 true US20200139206A1 (en) 2020-05-07

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US16/676,146 Abandoned US20200139206A1 (en) 2018-11-07 2019-11-06 Device for adjusting series of golf clubs and series of golf clubs thus adjusted

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US (1) US20200139206A1 (fr)
EP (1) EP3650087B1 (fr)
JP (1) JP2020075120A (fr)
FR (1) FR3088013B1 (fr)
MA (1) MA50277A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220080271A1 (en) * 2020-09-14 2022-03-17 Timothy N. Wright Configurable golfing apparatus
US11925839B2 (en) * 2011-09-21 2024-03-12 Karsten Manufacturing Corporation Golf club face plates with internal cell lattices and related methods

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060223647A1 (en) * 2005-04-04 2006-10-05 Brooks Alan L Weight-matched set of golf clubs
JP5814677B2 (ja) * 2010-09-17 2015-11-17 ダンロップスポーツ株式会社 ゴルフクラブ
CN107949427B (zh) * 2015-05-28 2023-11-07 卡斯顿制造有限公司 用于高尔夫球杆的可调节长度的杆身和可调节质量块

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11925839B2 (en) * 2011-09-21 2024-03-12 Karsten Manufacturing Corporation Golf club face plates with internal cell lattices and related methods
US20220080271A1 (en) * 2020-09-14 2022-03-17 Timothy N. Wright Configurable golfing apparatus
US11554300B2 (en) * 2020-09-14 2023-01-17 Timothy N. Wright Configurable golfing apparatus

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Publication number Publication date
EP3650087A1 (fr) 2020-05-13
EP3650087B1 (fr) 2020-10-21
FR3088013B1 (fr) 2020-10-30
JP2020075120A (ja) 2020-05-21
FR3088013A1 (fr) 2020-05-08
MA50277A (fr) 2020-05-13

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