JPH06182007A - Golf club shaft - Google Patents

Golf club shaft

Info

Publication number
JPH06182007A
JPH06182007A JP4354127A JP35412792A JPH06182007A JP H06182007 A JPH06182007 A JP H06182007A JP 4354127 A JP4354127 A JP 4354127A JP 35412792 A JP35412792 A JP 35412792A JP H06182007 A JPH06182007 A JP H06182007A
Authority
JP
Japan
Prior art keywords
shaft
foam
golf club
hollow cylindrical
cylindrical body
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
JP4354127A
Other languages
Japanese (ja)
Inventor
Hiromasa Iwade
浩正 岩出
Nobuo Tamoto
信夫 田元
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.)
Bridgestone Corp
Original Assignee
Bridgestone 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 Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP4354127A priority Critical patent/JPH06182007A/en
Publication of JPH06182007A publication Critical patent/JPH06182007A/en
Pending legal-status Critical Current

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  • Golf Clubs (AREA)

Abstract

(57)【要約】 【目的】 オフセンター打撃時の不快なしびれ感を低減
し、シャフト内部の異物音の発生を防止する。 【構成】 中空筒状体からなるゴルフクラブシャフトに
おいて、シャフト1の中空筒状体内に発泡体2を充填し
た。
(57) [Abstract] [Purpose] To reduce the unpleasant numbness when hitting off-center and prevent the generation of foreign noise inside the shaft. [Structure] In a golf club shaft having a hollow cylindrical body, the hollow cylindrical body of the shaft 1 is filled with the foam 2.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、中空筒状体からなる
ゴルフクラブシャフトにかかわり、さらに詳しくはシャ
フトの振動を抑え、シャフト内部の異物音を防止するこ
とができるゴルフクラブシャフトに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf club shaft made of a hollow cylindrical body, and more particularly to a golf club shaft capable of suppressing vibration of the shaft and preventing foreign sounds inside the shaft. .

【0002】[0002]

【従来の技術】従来のゴルフクラブシャフトは、軽量化
等のためシャフトを中空筒状体としクラブヘッドとシャ
フトを接着剤により固定していた。
2. Description of the Related Art Conventional golf club shafts have a hollow cylindrical body for fixing the club head and the shaft with an adhesive in order to reduce the weight.

【0003】[0003]

【発明が解決しようとする課題】プレーヤーがクラブヘ
ッドのオフセンターで打撃すると、クラブシャフトが変
則的に振動し、不快なしびれ感が生じる。また、ヘッド
とシャフトを接合する接着剤の一部が剥離すると、剥離
物が中空筒状体のシャフト内部を移動し、異物音が発生
する。しかし、従来のゴルフクラブシャフトは、これら
の問題について十分な解決策はなされていなかった。
When a player hits the club head off-center, the club shaft vibrates irregularly, causing an unpleasant numbness. Further, when a part of the adhesive that joins the head and the shaft is peeled off, the peeled substance moves inside the shaft of the hollow cylindrical body, and foreign matter noise is generated. However, conventional golf club shafts have not been an adequate solution to these problems.

【0004】そこで、この発明は、オフセンター打撃時
の不快なしびれ感を低減し、シャフト内部の異物音の発
生を防止するゴルフクラブシャフトを提供することを目
的とするものである。
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a golf club shaft which reduces unpleasant numbness at the time of off-center hitting and prevents foreign matter noise from being generated inside the shaft.

【0005】[0005]

【課題を解決するための手段】上述の目的を達成するた
め、この発明は、ゴルフクラブシャフトの中空筒状体内
に発泡体を充填したものである。
In order to achieve the above object, the present invention is one in which a hollow cylindrical body of a golf club shaft is filled with a foam.

【0006】[0006]

【作用】この発明のゴルフクラブシャフトは、シャフト
の中空筒状体内に発泡体を充填したため、発泡体の振動
吸収特性によりオフセンター打撃時でもシャフトの変則
的な振動が減少し、不快なしびれ感が低減される。ま
た、接着剤の一部が剥離しても、シャフト内部に発泡体
が充填されているため、剥離物がシャフト内部を移動す
ることなく異物音が発生しない。
In the golf club shaft of the present invention, since the hollow cylindrical body of the shaft is filled with the foam, the vibration absorbing characteristic of the foam reduces irregular vibration of the shaft even at the time of off-center hitting, resulting in an uncomfortable numbness. Is reduced. Further, even if a part of the adhesive is peeled off, since the inside of the shaft is filled with the foamed material, the peeled matter does not move inside the shaft, and no foreign matter sound is generated.

【0007】[0007]

【実施例】以下に、この発明の好適な実施例を図面を参
照にして説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

【0008】図1に示すゴルフクラブシャフトは、シャ
フト1の中空筒状体内全体に発泡体2を充填したもので
ある。シャフト1の本体は、繊維強化熱可塑性プラスチ
ック(FRTP)を中空筒状体に成形したものであり、
中空部の容積は60cc、重量は50gとなるようにし
た。次に中空筒状体内にポリイソシアネートやポリオー
ル等の発泡原液を注入して発泡し、中空筒状体内全体に
ポリウレタンフォーム(発泡体2)を充填した。
The golf club shaft shown in FIG. 1 is obtained by filling the entire hollow cylindrical body of the shaft 1 with the foam 2. The main body of the shaft 1 is formed by molding fiber reinforced thermoplastic (FRTP) into a hollow cylindrical body,
The hollow part had a volume of 60 cc and a weight of 50 g. Next, a foaming undiluted solution such as polyisocyanate or polyol was injected into the hollow cylindrical body for foaming, and the entire hollow cylindrical body was filled with polyurethane foam (foamed body 2).

【0009】また、シャフト1の本体は、ステンレス,
アルミ,鉄等の各種の金属や繊維補強樹脂により構成さ
れ、発泡体2としては、ウレタンフォーム,ポリエチレ
ンフォーム,ポリスチレンフォーム等の各種のフォーム
材や発泡ゴムが使用できる。
The body of the shaft 1 is made of stainless steel,
The foam 2 is made of various metals such as aluminum and iron and fiber-reinforced resin, and various foam materials such as urethane foam, polyethylene foam, polystyrene foam and foam rubber can be used as the foam 2.

【0010】このゴルフクラブシャフトにステンレス鋳
造のクラブヘッド3を接着して固定し(図2参照)、ゴ
ルフボールをオフセンターで打撃してみたが、不快なし
びれ感はなかった。また、接着剤の一部が剥離しても、
シャフト1内部のポリウレタンフォーム(発泡体2)の
充填により、剥離物がシャフト1内部を移動して異物音
を発生することはない。
A club head 3 made of stainless steel was adhered and fixed to this golf club shaft (see FIG. 2), and the golf ball was hit off-center, but there was no unpleasant numbness. Also, even if a part of the adhesive is peeled off,
Due to the filling of the polyurethane foam (foam 2) inside the shaft 1, the exfoliated material does not move inside the shaft 1 to generate foreign matter noise.

【0011】図3はこの発明の他の実施例を示す。上述
の実施例と同様に成形したシャフト1に、別に発泡した
ポリウレタンフォーム材(発泡体2)を長さ5cm、直径
3cmの円柱状に切断し、このフォーム材(発泡体2)を
圧縮変形させてシャフト1とクラブヘッド3の結合部お
よびシャフト振動の腹となる位置に部分的に挿入して固
定した。このゴルフクラブも、オフセンター打撃時でも
不快なしびれ感はなく、シャフト1内部の剥離物も接合
部分に挿入されたフォーム材により、内部の移動が抑え
られ異物音が発生することはなかった。
FIG. 3 shows another embodiment of the present invention. Separately foamed polyurethane foam material (foam body 2) was cut into a cylindrical shape having a length of 5 cm and a diameter of 3 cm, and the foam material (foam body 2) was compressed and deformed on the shaft 1 molded in the same manner as in the above-mentioned embodiment. The shaft 1 and the club head 3 are partially inserted and fixed at a position where the shaft 1 and the club head 3 are antinodes of the shaft vibration. This golf club also had no unpleasant numbness even when hitting off-center, and the peeled material inside the shaft 1 was prevented from moving inside due to the foam material inserted in the joint portion, and no foreign matter noise was generated.

【0012】[0012]

【発明の効果】以上説明したように、この発明によれ
ば、ゴルフクラブシャフトの中空筒状体内に発泡体を充
填したので、プレーヤーがクラブヘッドのオフセンター
で打撃してもクラブシャフトが変則的に振動することが
なく、不快なしびれ感が生じることがない。また、ヘッ
ドとシャフトを接合する接着剤の剥離等により、シャフ
ト内部に異物が発生しても、異物が中空筒状体のシャフ
ト内部を移動することがなく、異物音が発生することは
ない。
As described above, according to the present invention, since the hollow cylindrical body of the golf club shaft is filled with the foamed material, the club shaft is irregular even if the player hits it off center of the club head. It does not vibrate and does not cause an unpleasant numbness. Further, even if foreign matter is generated inside the shaft due to peeling of the adhesive that joins the head and the shaft, the foreign matter does not move inside the shaft of the hollow cylindrical body, and no foreign matter sound is generated.

【図面の簡単な説明】[Brief description of drawings]

【図1】図2のI−I線切断面図。FIG. 1 is a sectional view taken along line I-I of FIG.

【図2】ゴルフクラブの正面図。FIG. 2 is a front view of a golf club.

【図3】発泡体の斜視図。FIG. 3 is a perspective view of a foam.

【符号の説明】[Explanation of symbols]

1 シャフト 2 発泡体 1 shaft 2 foam

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 中空筒状体からなるゴルフクラブシャフ
トにおいて、シャフトの中空筒状体内に発泡体を充填し
たことを特徴とするゴルフクラブシャフト。
1. A golf club shaft comprising a hollow cylindrical body, wherein the hollow cylindrical body of the shaft is filled with foam.
JP4354127A 1992-12-15 1992-12-15 Golf club shaft Pending JPH06182007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4354127A JPH06182007A (en) 1992-12-15 1992-12-15 Golf club shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4354127A JPH06182007A (en) 1992-12-15 1992-12-15 Golf club shaft

Publications (1)

Publication Number Publication Date
JPH06182007A true JPH06182007A (en) 1994-07-05

Family

ID=18435479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4354127A Pending JPH06182007A (en) 1992-12-15 1992-12-15 Golf club shaft

Country Status (1)

Country Link
JP (1) JPH06182007A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5545094A (en) * 1995-08-24 1996-08-13 Hsu; Young-Chen Golf club shaft
EP0925811A1 (en) * 1997-12-24 1999-06-30 Apollo Sports Holdings Ltd. Shafts
JP2001025519A (en) * 1999-05-11 2001-01-30 Mamiya Op Co Ltd Golf club shaft
WO2001052949A1 (en) * 2000-01-24 2001-07-26 Lim Hwa Bong Golf club
CN103315464A (en) * 2012-03-23 2013-09-25 晨智实业股份有限公司 Rod type hand-hold assistor and hollow rod body thereof
CN107921717A (en) * 2015-07-23 2018-04-17 林正洙 Method for manufacturing graphite shaft

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037662B1 (en) * 1969-05-08 1975-12-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037662B1 (en) * 1969-05-08 1975-12-04

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5545094A (en) * 1995-08-24 1996-08-13 Hsu; Young-Chen Golf club shaft
EP0925811A1 (en) * 1997-12-24 1999-06-30 Apollo Sports Holdings Ltd. Shafts
JP2001025519A (en) * 1999-05-11 2001-01-30 Mamiya Op Co Ltd Golf club shaft
WO2001052949A1 (en) * 2000-01-24 2001-07-26 Lim Hwa Bong Golf club
CN103315464A (en) * 2012-03-23 2013-09-25 晨智实业股份有限公司 Rod type hand-hold assistor and hollow rod body thereof
CN107921717A (en) * 2015-07-23 2018-04-17 林正洙 Method for manufacturing graphite shaft
CN107921717B (en) * 2015-07-23 2020-03-24 林正洙 Method for manufacturing graphite shafts

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