JPH0231770A - Shaft for golf club - Google Patents

Shaft for golf club

Info

Publication number
JPH0231770A
JPH0231770A JP63181343A JP18134388A JPH0231770A JP H0231770 A JPH0231770 A JP H0231770A JP 63181343 A JP63181343 A JP 63181343A JP 18134388 A JP18134388 A JP 18134388A JP H0231770 A JPH0231770 A JP H0231770A
Authority
JP
Japan
Prior art keywords
shaft
thermoplastic resin
matrix
resin
mandrel
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.)
Pending
Application number
JP63181343A
Other languages
Japanese (ja)
Inventor
Keijiro Hayashi
林 敬次郎
Takashi Ito
隆志 伊藤
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.)
Mizuno Corp
Original Assignee
Mizuno Corp
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 Mizuno Corp filed Critical Mizuno Corp
Priority to JP63181343A priority Critical patent/JPH0231770A/en
Publication of JPH0231770A publication Critical patent/JPH0231770A/en
Pending legal-status Critical Current

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  • Golf Clubs (AREA)

Abstract

PURPOSE:To obtain a shaft which has properties of a light weight, excellent shock resistance, an optimum bend, a high vibration damping efficiency, and a good feeling by making the shaft of fiber reinforced plastics using thermoplastic resin as matrix or long-fiber reinforced thermoplastic resin. CONSTITUTION:Each kind of reinforced fiber, UD or cloth using thermoplastic resin such as polyamide or urethane, etc. as matrix is preformalized. This preform is formed into sheet or tape, heated to a melting temperature of matrix resin and wound round a mandrel. Next, the wound thing with the mandrel is put into a die having a specified cavity, cooled and solidified. Then that is removed from the die and the mandrel is taken out. Using thermoplastic resin as matrix resin has good effects on vibration damping efficiency and feeling at a time of hitting. As shock resistance is also improved, a partial reinforcing agent is not necessary to be used. A light weight, designing of an optimum bend and sending a ball over a long distance are possible.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、ゴルフクラブ用シャフトに間するものである
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a shaft for a golf club.

(従来の技術) 従来より繊維強化プラスチックス(以下FRPと略記す
る)製シャフトには、強化繊維として炭素繊維、ガラス
繊維、アラミド繊維、ボロン繊維、アルミナ繊維、炭化
珪素繊維など各種繊維が単独あるいは組み合わせて使用
されている。−方、マトリックス樹脂としては、エポキ
シ樹脂が主であるが、それ以外に不飽和ポリエステル樹
脂、フェノール樹脂など何れも熱硬化性樹脂が使用され
ている。マトリックス樹脂に求められる性能としては、
繊維に含浸し易く、界面のぬれ性が良く接着力の大きい
ことが要求される。さらに強化繊維よりも伸びが大きく
繊維の特性を充分に発揮させるものでなくてはならない
。また、靭性が大きく、耐衝撃性を有するものが要求さ
れている。
(Prior Art) Conventionally, shafts made of fiber reinforced plastics (hereinafter abbreviated as FRP) have been made using various types of reinforcing fibers such as carbon fiber, glass fiber, aramid fiber, boron fiber, alumina fiber, and silicon carbide fiber, either alone or as reinforcing fibers. used in combination. On the other hand, as the matrix resin, epoxy resin is mainly used, but thermosetting resins such as unsaturated polyester resin and phenol resin are also used. The performance required for matrix resin is as follows:
It is required that it be easily impregnated into fibers, have good interfacial wettability, and have high adhesive strength. Furthermore, it must have greater elongation than reinforcing fibers to fully demonstrate the characteristics of the fibers. Additionally, there is a demand for materials with high toughness and impact resistance.

特開昭50−72731号にシャフトの中空部に熱可塑
性樹脂を埋設して耐衝撃性を向上したゴルフクラブ用シ
ャフト、特開昭54−45383に熱硬化性プリプレグ
の中間層に熱可塑性樹脂フィルムシートを入れ、そりを
防止した釣竿等の管状体が開示されている。
JP-A-50-72731 discloses a golf club shaft with improved impact resistance by embedding a thermoplastic resin in the hollow part of the shaft, and JP-A-54-45383 discloses a thermoplastic resin film as an intermediate layer of thermosetting prepreg. A tubular body, such as a fishing rod, in which a sheet is inserted to prevent warping is disclosed.

また、現在量も一般的に行なわれているFRP製のシャ
フトの製造方法としてマンドレルにエポキシ樹脂をマト
リックスとしたUDレシートクロースプリプレグを巻き
付ける方法、あるいは各種繊維のロービングにエポキシ
樹脂を含浸させ、フィラメントワインディングする方法
がある。いずれもその後はラッピングテープを巻き、恒
温ボックス中で130℃2hr程度の条件で硬化する。
In addition, the currently common method for manufacturing FRP shafts is to wind UD receipt cloth prepreg with an epoxy resin matrix around a mandrel, or to impregnate rovings of various fibers with epoxy resin and perform filament winding. There is a way to do it. Both were then wrapped with wrapping tape and cured in a thermostatic box at 130° C. for about 2 hours.

硬化の完了したバイブはラッピングテープを除去し、研
磨、塗装することによってシャフト完成品となる。
Once the vibrator is cured, the wrapping tape is removed, and the shaft is finished by polishing and painting.

(発明が解決しようとする課題) しかしながら、熱硬化性樹脂ではlll1i維にサイジ
ング処理をすることによってぬれ性、接着性を、適当ζ
ご樹脂を加熱することによって含浸性を改善することは
できるものの、伸び、靭性に関しては熱可塑性樹脂には
及ばない。
(Problem to be Solved by the Invention) However, with thermosetting resins, wettability and adhesiveness can be improved by sizing the lll1i fibers.
Although impregnating properties can be improved by heating the resin, it is not as good as thermoplastic resins in terms of elongation and toughness.

また、ゴルフクラブ用シャフトにはボール打撃時に大き
な衝撃力がかかる。そのため、応力集中によってシャフ
トが折れないよう部分的に補強材を入れるが、この補強
材によってシャフトが補強される反面、部分的に硬くな
るため、しなりに悪影響を与える。すなわち、ゴルフの
最大の魅力であるボールを遠くへ飛ばすためのシャフト
の最適なしなり設計において設計の自由度を妨げること
になる。
Further, a large impact force is applied to the golf club shaft when hitting a ball. For this reason, reinforcing materials are inserted in some areas to prevent the shaft from breaking due to stress concentration, but while these reinforcing materials strengthen the shaft, they also make some parts of the shaft stiffer, which has a negative effect on bending. In other words, the degree of freedom in design is hindered in designing the optimal bend of the shaft for hitting the ball far, which is the most appealing aspect of golf.

特開昭50−72731号ζ゛間示されノとゴルフクラ
ブ用シャフトは、あくまr!熱硬化性樹脂によるシャフ
トの一部に熱可塑性樹脂を用いたものであり、この方法
では不必要な重量がシャフトに付加してしまい、シャフ
トの特性上好ましくない。
The golf club shaft shown in Japanese Patent Application Laid-Open No. 50-72731 is Akumar! A thermoplastic resin is used for a part of the shaft made of a thermosetting resin, and this method adds unnecessary weight to the shaft, which is not preferable in terms of the characteristics of the shaft.

また、特開昭54−45383号!1.゛二示された釣
竿等の管状体は、熱可塑性樹脂フィルムには強化繊維は
入っていない。
Also, JP-A No. 54-45383! 1. (ii) In the tubular body such as the fishing rod shown, the thermoplastic resin film does not contain reinforcing fibers.

さらに熱硬化性樹脂を用(る場@C5:はブリブLノグ
の保管に問題がある。ブリブIノグを長期に保管使用と
する場合には−10”f−:以下の条件で保管する必要
があり、常温では−、〉−月以内であってもブノブレグ
のタック、ドレープ性は温度に影響され易いため保管に
は充分注意を要し、保管設備が不可欠である。その上、
工程の中下硬化に要する2hrが非常に長く、この短縮
化が望まれている。
Furthermore, if thermosetting resin is used (@C5), there is a problem in storing Brib L Nog. If Brib I Nog is to be stored and used for a long period of time, it is necessary to store it under the following conditions: The tack and drape properties of bunobreg are easily affected by temperature, even if it is stored for less than -,〉-months at room temperature, so careful storage is required and storage facilities are essential.Furthermore,
The 2 hours required for middle and bottom curing of the process is extremely long, and it is desired to shorten this time.

そこで本発明はこれら従来の欠点に鑑み、軽量でかつ耐
衝撃性に優れ、最適なしなりを有し、振動減衰性に冨む
フィーリングの良いシャフト、すなわち、打球時のフィ
ーリングが良く、大きな飛距離が得られ、しかも成形材
料のプリフォームの保管が容易なゴルフクラブ用シャフ
トを提供するものである。
Therefore, in view of these conventional drawbacks, the present invention has developed a shaft that is lightweight, has excellent impact resistance, has optimal bending, has excellent vibration damping properties, and has a good feeling. To provide a shaft for a golf club that provides a long flight distance and allows easy storage of a preform of a molding material.

(課題を解決するための手段) 本発明の構成は、熱可塑性樹脂をマトリックスとしたF
RPf14ゴルフクラブ用シャフトないし長繊維強化熱
可塑性樹脂からなるゴルフクラブ用シャフトであり、以
下の実施例に基づいて説明する。
(Means for Solving the Problems) The structure of the present invention is based on F
This is a RPf14 golf club shaft or a golf club shaft made of a long fiber reinforced thermoplastic resin, and will be explained based on the following examples.

(実施例) 各種補強繊維をポリアミド、ウレタン、PEEKなとの
熱可塑性樹脂をマトリックスとしたUDあるいはクロス
のプリフォーム化する。このプリフォームをシート状又
はテープ状にし、マトリックス樹脂の溶融温度まで加熱
し、マンドレルに巻き付ける。次いで、巻き付けたもの
をマンドレルとともに所定のキャビティーを有する金型
内に入れ冷却固化する。その後、金型から脱型し、マン
ドレルを抜く。
(Example) Various reinforcing fibers are made into a UD or cloth preform using a thermoplastic resin such as polyamide, urethane, or PEEK as a matrix. This preform is shaped into a sheet or tape, heated to the melting temperature of the matrix resin, and wound around a mandrel. Next, the wound material is placed in a mold having a predetermined cavity together with a mandrel and cooled and solidified. After that, the mold is removed and the mandrel is pulled out.

(発明の効果) 以上のように本発明は、熱可塑性樹脂をマトリックスと
したFRPi!ゴルフクラブ用シャフトないし長繊維強
化熱可塑性樹脂からなるゴルフクラブ用シャフトであり
、以下のような効果を有する。
(Effects of the Invention) As described above, the present invention provides FRPi which uses a thermoplastic resin as a matrix! This is a shaft for a golf club or a shaft for a golf club made of a long fiber reinforced thermoplastic resin, and has the following effects.

マトリックス樹脂に熱可塑性樹脂を使用することにより
振動減衰性がよく、打球時のフィーリングがよくなる。
By using a thermoplastic resin for the matrix resin, vibration damping properties are good, and the feeling when hitting the ball is improved.

またスウィ・−トスポットを外して打球した場合の手に
伝わる違和感も無くなる。さらに、同樹脂をマトリック
ス樹脂に使用することにより、耐衝撃性が向上するため
、部分的な補強材を使用しなくて済み、軽量化が可能と
なると同時に最適なしなり設計ができ、大きな飛距離が
得られる。
It also eliminates the discomfort felt in the hands when the ball is hit off the sweet spot. Furthermore, by using the same resin as the matrix resin, impact resistance is improved, so there is no need to use partial reinforcing materials, making it possible to reduce weight and create an optimal bend design, which increases flight distance. is obtained.

また製造上においても、マトリックス樹脂に熱可塑性樹
脂を使用することにより硬化時間が短縮できる。その上
、プリフォームの保管が常温で可能となり、低温保管設
備を必要としないため、簡便に保管できるといった効果
を有し、さらに、マンドレルに巻き付けたり、ラッピン
グテープを巻く工程などの硬化工程前の温度管理も不要
となり工程管理が大幅にP、fl素([されるといった
効果を奏するものである。
Furthermore, in terms of manufacturing, curing time can be shortened by using a thermoplastic resin as the matrix resin. In addition, preforms can be stored at room temperature and do not require low-temperature storage equipment, making them easy to store. Temperature control is also unnecessary, and process control is significantly improved.

Claims (1)

【特許請求の範囲】 1 熱可塑性樹脂をマトリックスとしたFRP製ゴルフ
クラブ用シャフト。 2 長繊維強化熱可塑性樹脂からなるゴルフクラブ用シ
ャフト。
[Scope of Claims] 1. A shaft for a golf club made of FRP using a thermoplastic resin as a matrix. 2. A golf club shaft made of long fiber reinforced thermoplastic resin.
JP63181343A 1988-07-20 1988-07-20 Shaft for golf club Pending JPH0231770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63181343A JPH0231770A (en) 1988-07-20 1988-07-20 Shaft for golf club

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63181343A JPH0231770A (en) 1988-07-20 1988-07-20 Shaft for golf club

Publications (1)

Publication Number Publication Date
JPH0231770A true JPH0231770A (en) 1990-02-01

Family

ID=16099041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63181343A Pending JPH0231770A (en) 1988-07-20 1988-07-20 Shaft for golf club

Country Status (1)

Country Link
JP (1) JPH0231770A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0568726A (en) * 1991-09-09 1993-03-23 Mizuno Corp Manufacture of shaft for golf club
FR2681791A1 (en) * 1991-09-27 1993-04-02 Salomon Sa VIBRATION DAMPING DEVICE FOR A GOLF CLUB.
US5262118A (en) * 1991-03-22 1993-11-16 Yamaha Corporation Method for producing a hollow FRP article
US5655975A (en) * 1995-06-07 1997-08-12 Roush Anatrol, Inc. Golf club having vibration damping device and method for making same
US5935027A (en) * 1995-12-28 1999-08-10 Roush Anatrol, Inc. Multi-mode vibration absorbing device for implements

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01185274A (en) * 1988-01-19 1989-07-24 Hitachi Chem Co Ltd Shaft of golf club

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01185274A (en) * 1988-01-19 1989-07-24 Hitachi Chem Co Ltd Shaft of golf club

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262118A (en) * 1991-03-22 1993-11-16 Yamaha Corporation Method for producing a hollow FRP article
JPH0568726A (en) * 1991-09-09 1993-03-23 Mizuno Corp Manufacture of shaft for golf club
FR2681791A1 (en) * 1991-09-27 1993-04-02 Salomon Sa VIBRATION DAMPING DEVICE FOR A GOLF CLUB.
US5294119A (en) * 1991-09-27 1994-03-15 Taylor Made Golf Company, Inc. Vibration-damping device for a golf club
US5655975A (en) * 1995-06-07 1997-08-12 Roush Anatrol, Inc. Golf club having vibration damping device and method for making same
US5935027A (en) * 1995-12-28 1999-08-10 Roush Anatrol, Inc. Multi-mode vibration absorbing device for implements

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