WO2009113382A1 - ゴルフクラブシャフト及びゴルフクラブ - Google Patents
ゴルフクラブシャフト及びゴルフクラブ Download PDFInfo
- Publication number
- WO2009113382A1 WO2009113382A1 PCT/JP2009/053237 JP2009053237W WO2009113382A1 WO 2009113382 A1 WO2009113382 A1 WO 2009113382A1 JP 2009053237 W JP2009053237 W JP 2009053237W WO 2009113382 A1 WO2009113382 A1 WO 2009113382A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- golf club
- club shaft
- bending rigidity
- prepregs
- layer
- Prior art date
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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
- 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
- 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
- A63B2209/00—Characteristics of used materials
- A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
-
- 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
-
- 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
- A63B60/08—Handles characterised by the material
-
- 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
- A63B60/10—Handles with means for indicating correct holding positions
Definitions
- the present invention relates to a golf club shaft and a golf club manufactured by winding and thermosetting a thermosetting resin prepreg (sheet).
- a prepreg is known as a sheet-like material in which carbon fiber is impregnated with an uncured thermosetting resin.
- a plurality of prepregs are wound around a mandrel composed of a taper shaft, heat-cured, and then tapered. It is shaped like a shaft.
- a prepreg generally has a full length layer and a tip reinforcing layer, and the full length layer is usually formed in a trapezoidal shape so that when it is wound around a tapered mandrel, the total number of turns is the same.
- the tip reinforcing layer is a layer wound only on the tip portion because the strength (bending rigidity, EI) of the tip portion is insufficient only with the trapezoidal prepreg.
- FIG. 6 is a configuration example of a golf club shaft made up of this conventional full length layer and tip reinforcing layer.
- two trapezoidal bias layers (45 ° in total, 4 turns) each in turn from the lower layer to the tapered mandrel 10 (45 ° layer, the long fiber direction is 45 ° with respect to the shaft axis direction).
- the directions of the biases (long fibers) of the trapezoidal bias layers 11 and 12 are orthogonal to each other.
- the tip reinforcing layer 16 is a layer for reinforcing the tip, and is wound only around the tip.
- a triangular prepreg 17 made of a 0 ° layer is wound around the tip portion to make the shaft tip a straight portion corresponding to the hosel diameter of the club head. Turned.
- the trapezoidal layers 11 to 15, the tip reinforcing layer 16 and the triangular prepreg 17 wound on the mandrel 10 are heated to cure the uncured thermosetting resin to form a golf club shaft.
- Various types of carbon fibers and impregnating thermosetting resins are included in the trapezoidal layers 11 to 15, the tip reinforcing layer 16, and the triangular prepreg 17. JP-A-9-131422 JP 2000-51413 A
- a golf club shaft having a total of five full-length trapezoidal layers 11 to 15, a tip reinforcing layer 16, and a triangular prepreg 17 has a bending rigidity that changes stepwise (discontinuously) at the tip reinforcing layer 16. The shaft does not bend smoothly during the swing, the head speed does not increase, and the user cannot have a favorable feeling of use.
- the present invention is based on the above problem awareness of the conventional golf club shaft, without using a tip reinforcing layer that causes a discontinuity in the length direction in the bending rigidity, and without changing the bending rigidity at the hand. It is an object of the present invention to obtain a golf club shaft capable of increasing bending rigidity and suppressing bending rigidity in the circumferential direction.
- the present invention includes a golf club shaft in which an uncured thermosetting resin prepreg is wound in a taper shape and thermally cured, and includes three or more rectangular carbon prepregs as a full length layer; , Consisting of a 0 ° layer with the long fiber direction facing the longitudinal direction; all rectangular carbon prepregs have zero overlap at the large-diameter portion at hand and increase the overlap amount toward the tip; and The winding start positions of the rectangular carbon prepregs are different from each other.
- the number of rectangular carbon prepregs is most preferably four.
- the winding start position of three or more rectangular carbon prepregs is preferably clocked.
- a triangular carbon prepreg to the front end portion so that the front end portion is straight for mounting on the club head.
- the golf club of the present invention is a golf club in which a club head and a grip are mounted on the above-described golf club shaft.
- the golf club shaft of the present invention increases the bending rigidity of the tip, increases the bending rigidity of the entire length without causing a discontinuity in the length direction in the bending rigidity, and suppresses the variation in the bending rigidity in the circumferential direction. be able to.
- FIG. 1 is a plan view showing the shape and configuration of a carbon prepreg, showing a first embodiment of a golf club shaft according to the present invention. It is a top view similar to FIG. 1 showing the second embodiment. It is the graph which measured the bending rigidity of the golf club shaft of the first embodiment at different circumferential positions. It is the graph which measured the bending rigidity of the golf club shaft of 2nd embodiment in a different circumferential direction position.
- FIG. 7 is a graph obtained by measuring the bending stiffness distribution in the length direction of the golf club shafts of the first and second embodiments and the conventional example of FIG. 6. It is a top view similar to FIG. 1 showing an example of a conventional golf club shaft. 2 is a plan view similar to FIG.
- FIG. FIG. 8 is a graph obtained by measuring the bending rigidity of the golf club shaft of FIG. 7 at different circumferential positions.
- 3 is a plan view similar to FIG. 1 of a golf club shaft of Comparative Example 2.
- FIG. 10 is a graph obtained by measuring the bending rigidity of the golf club shaft of FIG. 9 at different circumferential positions.
- FIG. 1 shows a first embodiment of a golf club shaft according to the present invention, and shows a configuration of a carbon prepreg corresponding to FIG.
- Elements (carbon fiber and thermosetting resin) other than the shape of the carbon prepreg are the same as in the conventional example, and the trapezoidal bias layers 11 and 12 are the same as in the conventional example of FIG.
- the carbon prepreg wound on the trapezoidal bias layers 11 and 12 three 0 ° layers (one turn each) of rectangular carbon prepregs 21, 22, and 23 are used as the full length layer.
- the triangular carbon prepreg 17 is used in the same manner as in the conventional example, but the tip reinforcing layer 16 in the conventional example is not used (unnecessary). That is, all the carbon prepregs are the full length layers except for the triangular carbon prepreg 17 for making the tip part a straight shape suitable for the club head.
- the rectangular carbon prepregs 21 to 23 have a single layer (abutting end portions) over the entire circumference on the proximal side (large diameter portion) side, and the overlapping amount increases toward the distal end portion (small diameter portion) side.
- the mandrel 10 is wound around.
- the amount of overlap (overlap angle) at the tip of the rectangular carbon prepregs 21 to 23 varies depending on the total length and taper angle of the mandrel 10, but in the example of FIG. Further, the winding start position is clocked by three rectangular carbon prepregs 21 to 23 so as to be as equiangular as possible (clocking).
- each carbon prepreg having the configuration shown in FIG. 1 is wound around a mandrel 10 and cured by heating to form a golf club shaft, and the bending stiffness distribution in the length direction thereof is examined.
- the bending rigidity of the golf club shaft of the present embodiment smoothly changes from the tip portion (excluding the triangular carbon prepreg 17 portion) to the hand portion. For this reason, the bending of the shaft at the time of swing becomes smooth, the head speed increases, and a suitable feeling of use can be given to the user.
- FIG. 2 shows a golf club shaft according to a second embodiment of the present invention.
- Four rectangular carbon prepregs 21 each consisting of 0 ° layers (one turn each) are formed on trapezoidal bias layers 11 and 12. 22, 23, 24 are wound.
- Other configurations are the same as those of the first embodiment of FIG.
- a line B in FIG. 5 shows the bending rigidity in the longitudinal direction of the golf club shaft manufactured in this embodiment, and the tip portion (triangular carbon prepreg 17 is similar to FIG. A in the first embodiment. Since the number of carbon prepregs in the rectangular 0 ° layer is increased by one, the bending rigidity is increased as a whole.
- 3 and 4 are graphs in which the variation in the bending rigidity in the circumferential direction of the golf club shafts of the first and second embodiments is examined.
- the variation in the bending rigidity in the circumferential direction refers to a variation when the bending rigidity is measured by varying the rotational phase of the manufactured golf club shaft.
- the bending stiffness is measured at different circumferential positions (three locations of 0 °, 45 °, and 90 °). From this graph, it was recognized that the golf club shaft of this embodiment has almost no variation in the bending rigidity in the circumferential direction.
- FIGS. 3, 4, 8, and 10 since the difference between the three graphs is not clear, numerical values are also shown.
- FIG. 7 is a comparative example in which the rectangular carbon prepregs 21 and 22 are replaced with trapezoidal carbon prepregs 18 and 19 in the configuration of the embodiment of the present invention shown in FIG.
- FIG. 8 is a graph showing the bending rigidity of the golf club shaft measured at different circumferential positions (three locations of 0 °, 45 °, and 90 °).
- FIG. 9 is a comparative example in which the rectangular carbon prepreg 21 is replaced with a trapezoidal carbon prepreg 19 in the configuration of the embodiment of the present invention shown in FIG.
- FIG. 10 is a graph showing the bending rigidity of the golf club shaft measured at different circumferential positions (three locations of 0 °, 45 °, and 90 °).
- the tip reinforcing layer 16 that is indispensable in the conventional golf club shaft is not necessary. That is, even without using the tip reinforcing layer 16, the bending rigidity of the tip can be increased, which is advantageous in terms of component management in the manufacturing process.
- bias layers 11 and 12 are exemplified as the full-length trapezoid layer below the rectangular carbon prepregs 21 to 24, but the number of turns of the bias layer is not limited.
- the bias layer may not have the same number of turns as the tip.
- the direction and material of the fiber are not ask
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Golf Clubs (AREA)
Abstract
Description
11、12 台形バイアス層
16 先端補強層
17 三角状カーボンプリプレグ
21、22、23、24 長方形カーボンプリプレグ(0゜層)
Claims (5)
- 未硬化熱硬化性樹脂プリプレグをテーパ状に巻回し熱硬化させてなるゴルフクラブシャフトにおいて、
全長層としての3枚以上の長方形のカーボンプリプレグを含むこと;
全ての長方形のカーボンプリプレグは、長繊維方向が長手方向を向く0゜層からなること;
全ての長方形のカーボンプリプレグは、手元大径部においては重なり量がゼロで先端部に行くに従って重なり量を増加させていくこと;及び
長方形のカーボンプリプレグの巻回開始位置は互いに異なっていること;
を特徴とするゴルフクラブシャフト。 - 請求の範囲1記載のゴルフクラブシャフトにおいて、
長方形のカーボンプリプレグの枚数は4枚であるゴルフクラブシャフト。 - 請求の範囲1または2のいずれかに記載のゴルフクラブシャフトにおいて、
3枚以上の長方形のカーボンプリプレグの巻回開始位置は、クロッキングされているゴルフクラブシャフト。 - 請求の範囲1ないし3のいずれかに記載のゴルフクラブシャフトにおいて、
先端部に、該先端部をクラブヘッドに装着するためのストレート状にする三角状カーボンプリプレグが付加されているゴルフクラブシャフト。 - 請求の範囲1ないし4のいずれかに記載のゴルフクラブシャフトにクラブヘッド及びグリップを装着したゴルフクラブ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020097021073A KR101139436B1 (ko) | 2008-03-14 | 2009-02-24 | 골프클럽샤프트 및 골프클럽 |
CN200980000217XA CN101678227B (zh) | 2008-03-14 | 2009-02-24 | 高尔夫球杆杆身及高尔夫球杆 |
US12/600,056 US8292755B2 (en) | 2008-03-14 | 2009-02-24 | Golf club shaft and golf club |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008065056A JP4335289B1 (ja) | 2008-03-14 | 2008-03-14 | ゴルフクラブシャフト及びゴルフクラブ |
JP2008-065056 | 2008-03-14 |
Publications (1)
Publication Number | Publication Date |
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WO2009113382A1 true WO2009113382A1 (ja) | 2009-09-17 |
Family
ID=41065054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/053237 WO2009113382A1 (ja) | 2008-03-14 | 2009-02-24 | ゴルフクラブシャフト及びゴルフクラブ |
Country Status (6)
Country | Link |
---|---|
US (1) | US8292755B2 (ja) |
JP (1) | JP4335289B1 (ja) |
KR (1) | KR101139436B1 (ja) |
CN (1) | CN101678227B (ja) |
TW (1) | TW200946177A (ja) |
WO (1) | WO2009113382A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110195799A1 (en) * | 2010-02-05 | 2011-08-11 | Hogan Gerald F | Golf club shaft |
US20110294593A1 (en) * | 2010-06-01 | 2011-12-01 | Aldila, Inc. | Golf club by reverse interlaminar placement (rip) technology |
JP5721515B2 (ja) * | 2011-04-18 | 2015-05-20 | ダンロップスポーツ株式会社 | ゴルフクラブシャフト |
JP6182829B2 (ja) * | 2012-05-29 | 2017-08-23 | 三菱ケミカル株式会社 | ゴルフクラブ用シャフトの製造方法 |
JP5927044B2 (ja) * | 2012-05-31 | 2016-05-25 | ダンロップスポーツ株式会社 | ゴルフクラブシャフト |
JP6243612B2 (ja) * | 2013-03-07 | 2017-12-06 | ブリヂストンスポーツ株式会社 | ゴルフクラブ用シャフト |
WO2015083277A1 (ja) * | 2013-12-06 | 2015-06-11 | 藤倉ゴム工業株式会社 | ゴルフクラブシャフト及びこれを用いたゴルフクラブ |
US10406412B2 (en) | 2015-08-26 | 2019-09-10 | Fujikura Rubber Ltd. | Golf club shaft and golf club |
US11896880B2 (en) | 2020-07-10 | 2024-02-13 | Karsten Manufacturing Corporation | Ultra high stiffness putter shaft |
JP7286858B2 (ja) * | 2022-10-26 | 2023-06-05 | 日本発條株式会社 | 撓み測定装置、撓み測定方法及び品質管理方法 |
Citations (4)
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JPH09131422A (ja) * | 1995-11-07 | 1997-05-20 | Fujikura Rubber Ltd | ゴルフクラブシャフト及びその製法 |
JPH10329247A (ja) * | 1997-06-02 | 1998-12-15 | Toray Ind Inc | 複合材料管状体 |
JPH11188125A (ja) * | 1997-12-25 | 1999-07-13 | Sumitomo Rubber Ind Ltd | ゴルフクラブ用シャフト |
JP2005270515A (ja) * | 2004-03-26 | 2005-10-06 | Toray Ind Inc | 繊維強化複合材料製管状体 |
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US5427373A (en) * | 1992-06-24 | 1995-06-27 | Daiwa Golf Co., Ltd. | Shaft for golf club |
JP3990023B2 (ja) * | 1997-03-31 | 2007-10-10 | ダイワ精工株式会社 | ゴルフクラブシャフト |
US6126557A (en) * | 1997-08-26 | 2000-10-03 | Callaway Golf Company | Golf club shafts and methods of manufacturing the same |
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JP4533063B2 (ja) * | 2004-09-14 | 2010-08-25 | Sriスポーツ株式会社 | ゴルフクラブシャフト |
JP2006102038A (ja) * | 2004-10-04 | 2006-04-20 | Sri Sports Ltd | ゴルフクラブ |
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2008
- 2008-03-14 JP JP2008065056A patent/JP4335289B1/ja active Active
-
2009
- 2009-02-24 WO PCT/JP2009/053237 patent/WO2009113382A1/ja active Application Filing
- 2009-02-24 US US12/600,056 patent/US8292755B2/en active Active
- 2009-02-24 KR KR1020097021073A patent/KR101139436B1/ko active IP Right Grant
- 2009-02-24 CN CN200980000217XA patent/CN101678227B/zh active Active
- 2009-03-05 TW TW098107106A patent/TW200946177A/zh unknown
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JPH09131422A (ja) * | 1995-11-07 | 1997-05-20 | Fujikura Rubber Ltd | ゴルフクラブシャフト及びその製法 |
JPH10329247A (ja) * | 1997-06-02 | 1998-12-15 | Toray Ind Inc | 複合材料管状体 |
JPH11188125A (ja) * | 1997-12-25 | 1999-07-13 | Sumitomo Rubber Ind Ltd | ゴルフクラブ用シャフト |
JP2005270515A (ja) * | 2004-03-26 | 2005-10-06 | Toray Ind Inc | 繊維強化複合材料製管状体 |
Also Published As
Publication number | Publication date |
---|---|
KR20100002256A (ko) | 2010-01-06 |
US20100234124A1 (en) | 2010-09-16 |
JP4335289B1 (ja) | 2009-09-30 |
CN101678227A (zh) | 2010-03-24 |
CN101678227B (zh) | 2011-12-14 |
JP2009219564A (ja) | 2009-10-01 |
KR101139436B1 (ko) | 2012-04-27 |
US8292755B2 (en) | 2012-10-23 |
TW200946177A (en) | 2009-11-16 |
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