JPS5953059B2 - golf club head - Google Patents
golf club headInfo
- Publication number
- JPS5953059B2 JPS5953059B2 JP50123640A JP12364075A JPS5953059B2 JP S5953059 B2 JPS5953059 B2 JP S5953059B2 JP 50123640 A JP50123640 A JP 50123640A JP 12364075 A JP12364075 A JP 12364075A JP S5953059 B2 JPS5953059 B2 JP S5953059B2
- Authority
- JP
- Japan
- Prior art keywords
- head
- golf club
- wood
- synthetic
- club head
- 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.)
- Expired
Links
Description
【発明の詳細な説明】
本発明は反発係数が大きく、打撃音がよく、均一で生産
性に富むゴルフクラブ用ヘッドに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a head for a golf club that has a large coefficient of restitution, good hitting sound, is uniform, and has high productivity.
ゴルフクラブ用ヘッドには、ウッドとアイアンとがある
が、本発明はウッドのヘッドに関する。従来ゴルフクラ
ブ用ウッドヘッドとしては柿の木が最上とされた。ヘッ
ド用の太さを有する柿の木は非常に少なく、多量に入手
するのは困難になつて来ている。そこで薄い板をはりあ
わせて作つた合成製のヘッドが使用されるが、板がはり
あわせてあるため、打撃音等において劣るため好まれな
い。Golf club heads include wood and iron, and the present invention relates to a wood head. Traditionally, persimmon wood has been considered the best wood head for golf clubs. There are very few persimmon trees that are thick enough to make a head, and it is becoming difficult to obtain them in large quantities. Therefore, a synthetic head made of thin plates glued together is used, but since the plates are glued together, the impact sound is inferior, so it is not preferred.
その上合成製のヘッドといえその均一な材料の多量入手
は困難である。また天然木材はすべて製造程における湿
度コントロールがむつかしいうえに、乾そうさせる工程
や、切削加工に多大の労力を有するものであつた。そこ
で種々の人造ヘッドが開発された。Moreover, even though the head is made of synthetic material, it is difficult to obtain a large amount of uniform material. In addition, all natural wood is difficult to control humidity during the manufacturing process, and requires a great deal of labor to dry and cut. Therefore, various artificial heads have been developed.
たとえばＡＢＳ樹脂製、アルミ製、ＦＦＰ製、ＦＲＴＰ
製等があるが、いづれも天然木材製にとつてかわるにｊ
はいたらなかつた。性能的に特に打撃音が木材に較べ著
しく悪い上に発根係数も劣つていた。打撃音が悪い理由
はそれらの比弾性が低いことや、一体成型されていない
ものもあるためである。そこで、発明者はこれらの問題
を解決することを目的として本発明に致つた。すなわち
比弾性率が高いカーボングラファイト短繊維を熱硬化性
発泡合成樹脂中に分散させ強化して一体成型を行レ寸ヒ
弾性率が高い、合成木材ヘッドを作つた。この合成木材
のヘッド構造を実現するための製造法として発泡性を有
する合成樹脂で、始めにおいて液状であり比較的短時間
のうちに硬化する性質を持つた樹脂を選び、カーボング
ラファイト繊維を主体とする短繊維塊に上記の液状合成
樹脂を含浸させた後に、ゴルフクラブヘッド状凹部を有
する型に入れ、割型を閉じたのちに発泡硬化させること
によつて実現した。この方法による合成木材ヘッドの組
織は各短繊維間に気泡が存在し、比重も発泡倍率を変化
させることにより木材と同様の比重とすることができる
。又、合成木材ヘッドの弾性率及び強度は、その繊維含
有率をふやせばその増加することができるので、目的と
する性能にあわせて合成木材ヘッドを作ることができる
。For example, ABS resin, aluminum, FFP, FRTP
There are some products made from natural wood, but they are all good alternatives to natural wood products.
It didn't come. In terms of performance, the impact sound was significantly worse than that of wood, and the rooting coefficient was also inferior. The reason why the impact sound is bad is because their specific elasticity is low and some of them are not integrally molded. Therefore, the inventors came up with the present invention with the aim of solving these problems. That is, carbon graphite short fibers with a high specific modulus of elasticity were dispersed in a thermosetting foamed synthetic resin to strengthen it and integrally molded to create a synthetic wood head with a high specific modulus of elasticity. The manufacturing method for realizing this synthetic wood head structure was to select a foamable synthetic resin that is liquid at the beginning and has the property of hardening within a relatively short period of time. This was achieved by impregnating a short fiber mass with the liquid synthetic resin, placing it in a mold having a golf club head-shaped recess, closing the split mold, and then foaming and hardening. The structure of the synthetic wood head produced by this method has air bubbles between each short fiber, and the specific gravity can be made similar to that of wood by changing the expansion ratio. Furthermore, the elastic modulus and strength of the synthetic wood head can be increased by increasing its fiber content, so the synthetic wood head can be made to match the desired performance.
次に本発明の合成木材ヘッドの実施例について説明する
。Next, examples of the synthetic wood head of the present invention will be described.
第１図は本発明の合成木材ヘッドである。第２図は成形
用割型である。発泡性のある液状合成樹脂としてはウレ
タン樹脂生成用の液を用いた。FIG. 1 shows a synthetic wood head of the present invention. Figure 2 shows a split mold for molding. As the foamable liquid synthetic resin, a liquid for producing urethane resin was used.
その組成はＡ液及びＢ液の２液から成り、そのうちＡ液
は重量部ポリエーテル樹脂１００部、シリコーンオイル
１部、フレオン１０部、テトラメチルプロパンジアミン
０．５部、カーボンブラツク３部からなり、またＢ液と
してはＭＤＩ系イソシアネートであるポリイソシアネー
ト１３０部を用い、このＡ液及びＢ液を混合してからク
リーム状になるまでの時間は３分、クリーム状になつて
から発泡終了までの時間は３分であつた。ポリエチレン
ビーカに長さ１０ｍｍよりなるカーボングラフアイト短
繊維を６０ｇとり、上記Ａ液及びＢ液を混合した液を１
５０ｇをすばやく入れてかきぜた後に割型内に入れ比重
０．７になるように発泡硬化せる。Its composition consists of two parts, Part A and Part B, of which Part A consists of 100 parts by weight of polyether resin, 1 part of silicone oil, 10 parts of Freon, 0.5 parts of tetramethylpropanediamine, and 3 parts of carbon black. In addition, 130 parts of polyisocyanate, which is an MDI-based isocyanate, was used as liquid B, and the time from mixing these liquids A and B until they became creamy was 3 minutes, and the time from when they became creamy to the end of foaming was 3 minutes. The time was 3 minutes. Put 60g of carbon graphite short fibers with a length of 10mm in a polyethylene beaker, and add 1 part of the mixture of the above liquids A and B.
After quickly adding 50 g of the mixture and stirring it, it was placed in a split mold and foamed and hardened to a specific gravity of 0.7.
第１図においては、１は上記方法によつて得られるウレ
タン樹脂とカーボングラフアイト短繊維よりなる合成木
材、２は成型後塗装してできるウレタン皮まくである。In FIG. 1, numeral 1 is a synthetic wood made of urethane resin obtained by the above method and carbon graphite short fibers, and numeral 2 is a urethane covering made by painting after molding.
４はヘツド取りつけ穴である。4 is a head mounting hole.
第２図においてキヤビテイ５に未発泡の合成樹脂含浸短
繊維塊を入れる。In FIG. 2, an unfoamed synthetic resin-impregnated staple fiber mass is placed in the cavity 5.
６，７は割型であり、割型７，８にシヤフト取りつけ穴
用中子８がセツトされる。6 and 7 are split molds, and a shaft mounting hole core 8 is set in the split molds 7 and 8.
上記方法による合成木材ヘツドの圧縮弾性率は１５００
ｋｇ／Ｍｉｔであり、その強度は木材よりすぐれ、打撃
音は澄んだ高い音を発生しゴルフクラブ用ヘツドとして
は、従来の柿製よりすぐれた性能が得られた。The compressive modulus of the synthetic wood head obtained by the above method is 1500.
kg/Mit, its strength is superior to that of wood, and it produces a clear, high-pitched hitting sound, providing better performance as a golf club head than conventional persimmon-made heads.
第１図は本発明の合成木材ヘツドである。
第２図は成形用割型である。符号の説明、１・・・・・
・合成木材、２・・・・・・ウレタン皮まく、４・・・
・・・ヘツド取付穴、５・・・・・・キヤビテイ、６，
７・・・・・・割型、８・・・・・・中子。FIG. 1 shows a synthetic wood head of the present invention. Figure 2 shows a split mold for molding. Explanation of symbols, 1...
・Synthetic wood, 2... Urethane skin covering, 4...
...Head mounting hole, 5...Cavity, 6,
7...split mold, 8...core.
Claims (1)
主体とする短繊維塊を分散させて強化して一体成型する
ことを特徴とするゴルフクラブ用ヘッド。1. A head for a golf club characterized by being integrally molded by dispersing and reinforcing short fiber masses mainly composed of carbon graphite fibers in a hard foamed synthetic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50123640A JPS5953059B2 (en) | 1975-10-14 | 1975-10-14 | golf club head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50123640A JPS5953059B2 (en) | 1975-10-14 | 1975-10-14 | golf club head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5249131A JPS5249131A (en) | 1977-04-19 |
| JPS5953059B2 true JPS5953059B2 (en) | 1984-12-22 |
Family
ID=14865582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50123640A Expired JPS5953059B2 (en) | 1975-10-14 | 1975-10-14 | golf club head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5953059B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52153480U (en) * | 1976-05-18 | 1977-11-21 | ||
| JPS5446627A (en) * | 1977-09-20 | 1979-04-12 | Hiroshi Takahashi | Method of making clubhead for golfing |
| US4326716A (en) * | 1979-11-15 | 1982-04-27 | Patentex, S.A | Polyurethane golf club |
| JPS5969085A (en) * | 1982-10-15 | 1984-04-19 | ヤマハ株式会社 | Production of golf wood club head |
| JPS5961058U (en) * | 1982-10-18 | 1984-04-21 | 住友ゴム工業株式会社 | golf club head |
-
1975
- 1975-10-14 JP JP50123640A patent/JPS5953059B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5249131A (en) | 1977-04-19 |
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