JPH08112379A - Method for adjusting weight of wood club head for golf - Google Patents

Method for adjusting weight of wood club head for golf

Info

Publication number
JPH08112379A
JPH08112379A JP6273137A JP27313794A JPH08112379A JP H08112379 A JPH08112379 A JP H08112379A JP 6273137 A JP6273137 A JP 6273137A JP 27313794 A JP27313794 A JP 27313794A JP H08112379 A JPH08112379 A JP H08112379A
Authority
JP
Japan
Prior art keywords
weight
head
adjusting material
weight adjusting
head 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.)
Granted
Application number
JP6273137A
Other languages
Japanese (ja)
Other versions
JP2783173B2 (en
Inventor
Noburo Sumikawa
信郎 住川
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.)
Yamaha Corp
Original Assignee
Yamaha 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 Yamaha Corp filed Critical Yamaha Corp
Priority to JP6273137A priority Critical patent/JP2783173B2/en
Publication of JPH08112379A publication Critical patent/JPH08112379A/en
Application granted granted Critical
Publication of JP2783173B2 publication Critical patent/JP2783173B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE: To make it possible to increase the degree of freedom in design and the width of weight adjustment by using a thermally stable blank as a weight adjusting blank and forming a wood club head in such a manner that its weight is easily and accurately readjusted by changing the position of this weight adjusting blank or making the addition of the blank without impairing the characteristics of the head shell blank, such as ball hitting sounds. CONSTITUTION: The weight adjusting blank 10 consisting of a prescribed amt. of powdery or pellet-like thermoplastic resin is put in the interior 2 of a head body 1 having a previously molded hollow shell structure. The weight adjusting blank 10 is heated to its m.p. or above and is melted to be fluidized to the prescribed position in the head body l; thereafter, the melt is fused by cooling.

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、中空外殻構造からな
るゴルフ用ウッドクラブヘッドの重量調整法に関し、特
に、ヘッド本体の内部に熱可塑性合成樹脂からなる重量
調整素材を投入し加熱溶融させて、ヘッド本体内の所定
位置に融着させることにより、打球音等のヘッド外殻素
材の特性を損なうことなく、ヘッド全体重量及びバラン
スの調整を精度良く行なえるようにしてなるものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for adjusting the weight of a wood club head for golf having a hollow outer shell structure, and more particularly, to introducing a weight adjusting material made of a thermoplastic synthetic resin into the inside of the head body and heating and melting it. By fusing at a predetermined position in the head main body, the overall weight and balance of the head can be adjusted with high precision without impairing the characteristics of the head outer shell material such as the hitting sound.

【0002】[0002]

【従来の技術】従来、この種のゴルフ用ウッドクラブヘ
ッドの重量及びバランス調整を行なうにおいては、例え
ばスチロールやポリ塩化ビニリデンマイクロバルーン等
の発泡ビーズ、あるいは未硬化液状の熱硬化性合成樹脂
などの重量調整素材を予め成形されたヘッド本体内に所
定量投入し、これらの重量調整素材を発泡あるいは加熱
硬化させることにより行なわれている。
2. Description of the Related Art Conventionally, when adjusting the weight and balance of a golf club head for golf of this type, for example, foam beads such as styrene and polyvinylidene chloride microballoons or uncured liquid thermosetting synthetic resin are used. This is performed by introducing a predetermined amount of the weight adjusting material into a preformed head body, and foaming or heat curing these weight adjusting materials.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、このよ
うな従来のヘッド重量調整手段では、いずれも重量調整
素材の位置変更や追加投入による再調整が不可能である
ばかりでなく、重量調整素材として発泡ビーズを用いる
場合、発泡ビーズの最少投入量が設定されるために、打
球音等のヘッド外殻素材の特性を活かし難く、しかも、
発泡硬化させる際の過度の加熱により収縮することがあ
る。
However, in such a conventional head weight adjusting means, not only is it impossible to change the position of the weight adjusting material and readjust by additionally feeding it, but also foaming as a weight adjusting material. When beads are used, it is difficult to take advantage of the characteristics of the head shell material such as the hitting sound because the minimum amount of foam beads is set.
It may shrink due to excessive heating during foaming and curing.

【0004】また、重量調整素材として未硬化液状の熱
硬化性合成樹脂を用いてなるものにあっては、大量に投
入すると、硬化発熱作用で素材が発泡して熱劣化するた
めに、重量調整幅が狭いという問題があった。
Further, in the case of using an uncured liquid thermosetting synthetic resin as a weight adjusting material, if a large amount of the material is added, the material is foamed due to curing heat generation and thermally deteriorates. There was a problem that the width was narrow.

【0005】[0005]

【発明の目的】この発明の目的は、重量調整素材として
熱的に安定な素材を用い、打球音等のヘッド外殻素材の
特性を損なうことなく重量調整素材の位置変更や追加投
入による再調整を容易にかつ精度良く行なえるようにし
て、設計の自由度及び重量調整幅を大きくすることがで
きるようにしたゴルフ用ウッドクラブヘッドの重量調整
法を提供することにある。
An object of the present invention is to use a thermally stable material as a weight adjusting material and to re-adjust by changing the position of the weight adjusting material or adding the same without damaging the characteristics of the head outer shell material such as hitting sound. It is an object of the present invention to provide a method for adjusting the weight of a wood club head for a golf in which the degree of freedom in design and the weight adjustment range can be increased by making it possible to easily and accurately perform.

【0006】[0006]

【課題を解決するための手段】上記した課題を解決する
ために、この発明は、予め成形された中空外殻構造を有
するヘッド本体の内部に所定量のパウダー状またはペレ
ット状の熱可塑性合成樹脂からなる重量調整素材を投入
する工程と、この重量調整素材が加熱溶融状態において
前記ヘッド本体内の所定位置に流動させて滞留するよう
に前記ヘッド本体を位置決め保持する工程と、この位置
決め保持後のヘッド本体を前記重量調整素材の融点以上
に加熱する工程と、この溶融状態にある重量調整素材の
流動滞留後に前記ヘッド本体を冷却し融着させる工程と
からなることを特徴とするものである。
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a predetermined amount of powdery or pellet-shaped thermoplastic synthetic resin inside a head body having a hollow outer shell structure formed in advance. And a step of positioning and holding the head main body so that the weight adjusting material flows and stays at a predetermined position in the head main body in a heating and melting state, and after the positioning and holding, It is characterized by comprising a step of heating the head main body to a temperature equal to or higher than the melting point of the weight adjusting material, and a step of cooling and fusing the head main body after the weight adjusting material in a molten state is accumulated in a fluidized state.

【0007】また、この発明は、上記の構成において、
重量調整素材として、パウダー状またはペレット状の熱
可塑性合成樹脂と粒状または粉状の金属素材とを併用し
てなることを特徴とするものである。
Further, according to the present invention, in the above structure,
As the weight adjusting material, a powdery or pelletized thermoplastic synthetic resin and a granular or powdery metallic material are used in combination.

【0008】[0008]

【作用】すなわち、この発明は、上記の構成を採用する
ことによって、予め成形された中空外殻構造を有するヘ
ッド本体の内部に所定量のパウダー状またはペレット状
の熱可塑性合成樹脂からなる重量調整素材を投入し、こ
の重量調整素材を融点以上に加熱して溶融させてヘッド
本体内の所定位置に流動させた後、冷却することにより
融着させてなるために、重量調整素材が融点以下で熱的
に安定し、打球音等のヘッド外殻素材の特性を損なうこ
となく重量調整精度が高められるとともに、重量調整素
材の追加投入が可能であるために、調整幅が大きく、こ
れによって、設計の自由度が大きくなる。
That is, according to the present invention, by adopting the above-mentioned constitution, the weight adjustment made of a predetermined amount of powdery or pelletized thermoplastic synthetic resin inside the head body having the hollow outer shell structure formed in advance. After the material is charged, the weight adjusting material is heated to a temperature equal to or higher than the melting point to melt and flow to a predetermined position in the head main body, and then the material is fused by being cooled. It is thermally stable, and the weight adjustment accuracy is improved without deteriorating the characteristics of the head shell material such as the hitting sound, and since the weight adjustment material can be added additionally, the adjustment range is large. The degree of freedom of is increased.

【0009】また、ヘッド本体内に一旦融着した重量調
整素材を再加熱して溶融させることにより、重量調整素
材の流動による位置変更が容易に行なえる。
Further, by reheating and melting the weight adjusting material once fused in the head body, the position can be easily changed by the flow of the weight adjusting material.

【0010】さらに、重量調整素材として、パウダー状
またはペレット状の熱可塑性合成樹脂と粒状または粉状
の金属素材とを併用することにより、調整幅の一層の拡
大化が図れる。
Further, as the weight adjusting material, the powdery or pelletized thermoplastic synthetic resin and the granular or powdery metal material are used in combination, whereby the adjustment range can be further expanded.

【0011】[0011]

【実施例】以下、この発明の各実施例を図面に基づいて
詳細に説明すると、図1から図4は、この発明に係るゴ
ルフ用ウッドクラブヘッドの重量調整法の第1実施例を
示すもので、図中1は例えばチタン、ステンレスあるい
はアルミ等の金属素材を外殻とした中空構造を有するヘ
ッド本体である。
Embodiments of the present invention will now be described in detail with reference to the drawings. FIGS. 1 to 4 show a first embodiment of a weight adjusting method for a golf wood club head according to the present invention. Reference numeral 1 in the drawing denotes a head body having a hollow structure with a metal material such as titanium, stainless steel or aluminum as an outer shell.

【0012】このヘッド本体1は、図1に示すように、
予め所望の成形法により別途に成形され、その中空部2
は、ホーゼル部1aに貫通させたシャフト挿入孔3と連
通し、このシャフト挿入孔3を後述する重量調整素材1
0の投入口としている。
The head body 1 is, as shown in FIG.
The hollow part 2 is formed separately by a desired forming method in advance.
Communicates with a shaft insertion hole 3 that penetrates the hosel portion 1a, and the shaft insertion hole 3 is used for the weight adjustment material 1 described later.
It is set as 0 input port.

【0013】すなわち、前記ヘッド本体1の全体重量調
整と共にバランス調整、例えば重心Gの高さHが低くな
るような調整を行なうには、まず、図2に示すように、
ヘッド本体1を傾けて、重量調整素材10が投入し易い
ようにホーゼル部1aの傾斜具合を調整し、このホーゼ
ル部1aのシャフト挿入孔3から所定量のパウダー状ま
たはペレット状の熱可塑性合成樹脂からなる重量調整素
材10を前記ヘッド変態1の中空部2に投入する。
That is, in order to adjust the overall weight of the head main body 1 as well as balance adjustment, for example, adjustment such that the height H of the center of gravity G is lowered, first, as shown in FIG.
The head main body 1 is tilted to adjust the inclination of the hosel portion 1a so that the weight adjusting material 10 can be easily introduced, and a predetermined amount of powder-like or pellet-like thermoplastic synthetic resin from the shaft insertion hole 3 of the hosel portion 1a. The weight adjusting material 10 consisting of is introduced into the hollow portion 2 of the head transformation 1.

【0014】次いで、図3に示すように、前記ヘッド本
体1を重量調整素材10が加熱溶融状態において、前記
ヘッド本体1内の所定位置、すなわち、ソール面1b側
の内底面側に流動させて滞留するように位置決め保持し
た後、前記ヘッド本体1を重量調整素材10の融点より
20℃以上の高温に加熱(加熱時間:30〜60分)す
る。
Next, as shown in FIG. 3, while the weight adjusting material 10 is being heated and melted, the head body 1 is caused to flow to a predetermined position in the head body 1, that is, to the inner bottom surface side on the sole surface 1b side. After positioning and holding so as to stay, the head body 1 is heated to a temperature higher than the melting point of the weight adjusting material 10 by 20 ° C. or more (heating time: 30 to 60 minutes).

【0015】このとき、前記重量調整素材10が加熱溶
融され、図4に示すように、重量調整素材10は流動し
てソール面1b側内底面に均一に滞留し、この状態で、
前記ヘッド本体1を冷却することにより、重量調整素材
10をヘッド内底面1bの所定位置に融着させてなるも
のである。
At this time, the weight adjusting material 10 is heated and melted, and as shown in FIG. 4, the weight adjusting material 10 flows and stays uniformly on the inner bottom surface on the sole surface 1b side.
By cooling the head body 1, the weight adjusting material 10 is fused at a predetermined position on the inner bottom surface 1b of the head.

【0016】また、図5はこの発明に係る第2実施例を
示すもので、ヘッド本体1の重心Gの深さDをバック面
1c側に移行調整する際、重量調整素材10の投入後
に、前記ヘッド本体1を重量調整素材10が加熱溶融状
態においてバック面1c側に流動した滞留するように位
置決め保持してなる構成を有するものである。
FIG. 5 shows a second embodiment according to the present invention. When adjusting the depth D of the center of gravity G of the head body 1 to the back surface 1c side, after the weight adjusting material 10 is put in, The head main body 1 is positioned and held so that the weight adjusting material 10 flows and stays on the back surface 1c side in a heating and melting state.

【0017】ところで、重量調整素材10である熱可塑
性合成樹脂としては、融点が60℃以上、金属との融着
性にすぐれ、可撓性を有することが好ましく、例えば熱
可塑性ウレタン、金属融着性を改良したポリオレフィ
ン、熱可塑性ウレタンと金属融着性を改良したポリオレ
フィンのグラファイト共重合体、共重合ポリアミド、E
VAあるいは熱可塑性ポリエステルなどが好適に使用さ
れる。
By the way, it is preferable that the thermoplastic synthetic resin as the weight adjusting material 10 has a melting point of 60 ° C. or more, is excellent in fusion property with a metal, and has flexibility, for example, thermoplastic urethane or metal fusion bond. -Modified polyolefin, thermoplastic urethane-graphite copolymer of polyolefin with improved metal fusion property, copolymerized polyamide, E
VA or thermoplastic polyester is preferably used.

【0018】さらに、重量調整素材10として、パウダ
ー状またはペレット状の熱可塑性合成樹脂に粒状または
粉状の金属素材を併用しても良く、例えば熱可塑性合成
樹脂パウダーに鉛粉またはタングステン粉などの金属パ
ウダーを最大1:20の重量比で配合すれば、重量調整
幅の一層の拡大化が可能になる。
Further, as the weight adjusting material 10, a granular or powdery metallic material may be used in combination with a powdery or pelletized thermoplastic synthetic resin, for example, a thermoplastic synthetic resin powder such as lead powder or tungsten powder. If the metal powder is mixed in a weight ratio of 1:20 at the maximum, the weight adjustment range can be further expanded.

【0019】なお、上記の実施例においては、ヘッド本
体1として金属からなる中空外殻構造のものを例にして
説明したが、例えばカーボン繊維やガラス繊維繊維など
を補強繊維とした繊維強化プラスチックス(FRP)素
材からなる中空外殻構造のものにおいても、この発明の
作用効果を発揮させることが可能である。
In the above embodiments, the head main body 1 has a hollow outer shell structure made of metal as an example. However, for example, a fiber reinforced plastics containing carbon fiber or glass fiber fiber as a reinforcing fiber. Even with a hollow outer shell structure made of a (FRP) material, the effects of the present invention can be exhibited.

【0020】[0020]

【発明の効果】以上の説明から明らかなように、この発
明によれば、予め成形された中空外殻構造を有するヘッ
ド本体の内部に所定量のパウダー状またはペレット状の
熱可塑性合成樹脂からなる重量調整素材を投入し、この
重量調整素材を融点以上に加熱して溶融させてヘッド本
体内の所定位置に流動させた後、冷却することにより融
着させてなることから、重量調整素材が融点以下で熱的
に安定し、打球音等のヘッド外殻素材の特性を損なうこ
となく重量調整精度を高めることができるとともに、重
量調整素材の追加投入が可能であるために、調整幅を大
きくすることができ、これによって、設計の自由度を大
きくすることができる。
As is apparent from the above description, according to the present invention, a predetermined amount of powder-like or pellet-like thermoplastic synthetic resin is formed inside the head body having a preformed hollow shell structure. The weight-adjusting material is melted by heating the weight-adjusting material to a temperature higher than the melting point, causing the weight-adjusting material to flow to a predetermined position in the head body, and then cooling and fusing it. It is thermally stable below and can improve the weight adjustment accuracy without deteriorating the characteristics of the head outer shell material such as the hitting sound, and it is possible to add the weight adjustment material, so the adjustment range is increased. Therefore, the degree of freedom in design can be increased.

【0021】また、ヘッド本体内に一旦融着した重量調
整素材を再加熱して溶融させることにより、重量調整素
材の流動による位置変更を容易に行なうことができ、設
計の自由度を更に大きくすることができる。
Further, by reheating and melting the weight adjusting material once fused in the head main body, the position can be easily changed by the flow of the weight adjusting material, and the degree of freedom of design is further increased. be able to.

【0022】さらに、請求項2において、重量調整素材
として、パウダー状またはペレット状の熱可塑性合成樹
脂と粒状または粉状の金属素材とを併用することによ
り、調整幅の一層の拡大を図ることができる。
Further, in claim 2, as the weight adjusting material, a powdery or pelletized thermoplastic synthetic resin and a granular or powdery metal material are used in combination to further expand the adjustment range. it can.

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

【図1】 この発明に係る重量調整法に用いられるゴル
フ用ウッドクラブヘッドの断面図。
FIG. 1 is a cross-sectional view of a golf wood club head used in a weight adjusting method according to the present invention.

【図2】 同じくへッド本体への重量調整素材の投入状
態を示す断面図。
FIG. 2 is a sectional view showing a state in which the weight adjusting material is also put into the head body.

【図3】 同じく重量調整素材投入後のへッド本体の位
置決め保持状態の第1実施例を示す断面図。
FIG. 3 is a sectional view showing a first embodiment of the head body in a positioning and holding state after the weight adjusting material is charged.

【図4】 同じくへッド本体の位置決め保持状態後の重
量調整素材の加熱溶融による流動状態を示す断面図。
FIG. 4 is a sectional view showing a fluidized state of the weight adjusting material by heating and melting after the head body is positioned and held.

【図5】 この発明に係る重量調整素材投入後のへッド
本体の位置決め保持状態の第2実施例を示す断面図。
FIG. 5 is a cross-sectional view showing a second embodiment of the head main body in a positioned and held state after the weight adjusting material is charged according to the present invention.

【符号の説明】[Explanation of symbols]

1……ヘッド本体、1a……ホーゼル部、1b……ソー
ル面、1c……バック面、2……中空部、3……シャフ
ト挿入孔(投入口)、10……重量調整素材。
1 ... Head body, 1a ... Hosel part, 1b ... Sole surface, 1c ... Back surface, 2 ... Hollow part, 3 ... Shaft insertion hole (insertion port), 10 ... Weight adjustment material.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 予め成形された中空外殻構造を有するヘ
ッド本体の内部に所定量のパウダー状またはペレット状
の熱可塑性合成樹脂からなる重量調整素材を投入する工
程と、 この重量調整素材が加熱溶融状態において前記
ヘッド本体内の所定位置に流動させて滞留するように前
記ヘッド本体を位置決め保持する工程と、 この位置決め保持後のヘッド本体を前記重量調整素材の
融点以上に加熱する工程と、 この溶融状態にある重量調整素材の流動滞留後に前記ヘ
ッド本体を冷却し融着させる工程とからなることを特徴
とするゴルフ用ウッドクラブヘッドの重量調整法。
1. A step of introducing a predetermined amount of a weight-adjusting material made of a powdery or pellet-like thermoplastic synthetic resin into a head body having a preformed hollow outer shell structure, and heating the weight-adjusting material. A step of positioning and holding the head body so that the head body is made to flow and stay in a predetermined position in the head body in a molten state; and a step of heating the head body after the positioning and holding to a temperature equal to or higher than the melting point of the weight adjusting material, A method for adjusting the weight of a wood club head for golf, which comprises the step of cooling and fusing the head body after the molten weight adjusting material has flowed and accumulated.
【請求項2】 予め成形された中空外殻構造を有するヘ
ッド本体の内部に所定量のパウダー状またはペレット状
の熱可塑性合成樹脂と粒状または粉状の金属素材との併
用からなる重量調整素材を投入する工程と、 この重量調整素材中の熱可塑性合成樹脂が加熱溶融状態
において前記ヘッド本体内の所定位置に流動させて滞留
するように前記ヘッド本体を位置決め保持する工程と、 この位置決め保持後のヘッド本体を前記重量調整素材中
の熱可塑性合成樹脂の融点以上に加熱する工程と、 この溶融状態にある重量調整素材中の熱可塑性合成樹脂
の流動滞留後に前記ヘッド本体を冷却し融着させる工程
とからなることを特徴とするゴルフ用ウッドクラブヘッ
ドの重量調整法。
2. A weight adjusting material comprising a combination of a predetermined amount of powdery or pelletized thermoplastic synthetic resin and a granular or powdery metal material inside a head body having a preformed hollow outer shell structure. A step of charging, a step of positioning and holding the head main body so that the thermoplastic synthetic resin in the weight adjusting material flows and stays at a predetermined position in the head main body in a heating and melting state, and a step after the positioning and holding A step of heating the head main body to a temperature equal to or higher than the melting point of the thermoplastic synthetic resin in the weight adjusting material, and a step of cooling and fusing the head main body after the thermoplastic synthetic resin in the weight adjusting material in the molten state flows and stays A method for adjusting the weight of a wood club head for golf, comprising:
JP6273137A 1994-10-13 1994-10-13 Weight adjustment method for wood club head for golf Expired - Fee Related JP2783173B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6273137A JP2783173B2 (en) 1994-10-13 1994-10-13 Weight adjustment method for wood club head for golf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6273137A JP2783173B2 (en) 1994-10-13 1994-10-13 Weight adjustment method for wood club head for golf

Publications (2)

Publication Number Publication Date
JPH08112379A true JPH08112379A (en) 1996-05-07
JP2783173B2 JP2783173B2 (en) 1998-08-06

Family

ID=17523640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6273137A Expired - Fee Related JP2783173B2 (en) 1994-10-13 1994-10-13 Weight adjustment method for wood club head for golf

Country Status (1)

Country Link
JP (1) JP2783173B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112672793A (en) * 2018-11-13 2021-04-16 蔡秉坤 Golf club for education and training

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06205859A (en) * 1993-01-08 1994-07-26 Yamaha Corp Club head for golf

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06205859A (en) * 1993-01-08 1994-07-26 Yamaha Corp Club head for golf

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112672793A (en) * 2018-11-13 2021-04-16 蔡秉坤 Golf club for education and training

Also Published As

Publication number Publication date
JP2783173B2 (en) 1998-08-06

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