JPH04109973A - Manufacture of metal wood golf club head - Google Patents
Manufacture of metal wood golf club headInfo
- Publication number
- JPH04109973A JPH04109973A JP2226732A JP22673290A JPH04109973A JP H04109973 A JPH04109973 A JP H04109973A JP 2226732 A JP2226732 A JP 2226732A JP 22673290 A JP22673290 A JP 22673290A JP H04109973 A JPH04109973 A JP H04109973A
- Authority
- JP
- Japan
- Prior art keywords
- filler
- golf club
- metal
- club head
- metal 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 title claims abstract description 35
- 239000002023 wood Substances 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000000945 filler Substances 0.000 claims abstract description 20
- 239000011324 bead Substances 0.000 claims abstract description 18
- 239000003094 microcapsule Substances 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 11
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 claims description 8
- 239000011162 core material Substances 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 4
- 238000000465 moulding Methods 0.000 abstract description 8
- 229920001577 copolymer Polymers 0.000 abstract description 5
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract description 5
- 239000001273 butane Substances 0.000 abstract description 3
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 abstract 2
- 239000006260 foam Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 4
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 4
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000001282 iso-butane Substances 0.000 description 2
- 239000004005 microsphere Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- -1 n-7'tane Chemical compound 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Golf Clubs (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、メタルウッドゴルフクラブヘッドの製造方
法に係わり、更に詳しくはメタルヘッド本体の中空部内
を、発泡性ビーズによって均一な発泡状態で充填させる
メタルウッドゴルフクラブヘッドの製造方法に関するも
のである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing a metal wood golf club head, and more specifically, the present invention relates to a method for manufacturing a metal wood golf club head, and more specifically, a method for filling a hollow portion of a metal head body with foam beads in a uniformly foamed state. The present invention relates to a method of manufacturing a metal wood golf club head.
従来、メタルウッドゴルフクラブヘッドには、打球音を
含む打球時のフィーリングを改善するため、その中心部
に硬質ポリウレタンフォームを注入発泡させて充填させ
たものが知られている。BACKGROUND ART Conventionally, metal wood golf club heads have been known to have a hard polyurethane foam injected and foamed into the center of the club head in order to improve the feel when hitting the ball, including the sound of the ball.
また、繊維強化プラスチックを主材とするウッドゴルフ
クラブヘッドには、例えば、特開昭５９−９１９７５号
公報に開示されているように、一定温度以上に加熱した
時にガスを発生するガス発生剤を芯材中に混入し、この
芯材の外周に熱硬化性樹脂にてプリプレグした炭素繊維
を付着させて被覆層を設けた後、成形型にて被覆層を加
熱硬化し、この成型熱によりガス発生剤のガスを発生し
芯材方向から成形型の内面に被覆層を加圧圧縮すること
によりクラブヘッドを成形し、プリプレグ物量に生じる
空隙の発生を防止させたものも提案されている。In addition, wood golf club heads made mainly of fiber-reinforced plastic contain gas generating agents that generate gas when heated above a certain temperature, as disclosed in Japanese Patent Laid-Open No. 59-91975, for example. After forming a coating layer by mixing carbon fibers into the core material and adhering them to the outer periphery of this core material using a thermosetting resin, the coating layer is heated and cured in a mold, and the heat of the molding causes gas to be removed. It has also been proposed to mold a club head by generating gas from a generating agent and pressurizing and compressing a coating layer onto the inner surface of a mold from the direction of the core material, thereby preventing the formation of voids in the amount of prepreg material.
然しながら、メタルヘッドの中空部内に、硬質ポリウレ
タンフォームを注入発泡させて充填させる方法のものは
、均一な発泡状態で中空部を充填させることが難しく、
所謂巣が出来たりする場合があり、また打球時に充填さ
れた硬質ポリウレタンフォームが崩れて、内部に空隙部
が生ずると言う問題があった。However, with the method of injecting and foaming rigid polyurethane foam into the hollow part of the metal head, it is difficult to fill the hollow part in a uniform foamed state.
There are problems in that so-called cavities may form, and the hard polyurethane foam filled in the ball collapses when the ball is hit, creating voids inside.
また、後者の繊維強化プラスチックを主材とするウッド
ゴルフクラブヘッドは、芯材中に混入させたガス発生剤
のガス圧により、被覆層を加圧圧縮する旨記載されてい
るが、実際にはクラブヘッドの成形圧が低いことから、
クラブヘッドとして必要な十分な強度を出すことが難し
く、従って、この成形方法は現実的ではないと考えられ
る。In addition, it is stated that the latter wood golf club head, which is mainly made of fiber-reinforced plastic, compresses the coating layer under pressure using the gas pressure of the gas generating agent mixed in the core material, but in reality, Due to the low molding pressure of the club head,
It is difficult to provide sufficient strength necessary for a club head, and therefore, this molding method is considered impractical.
この発明は、かかる従来の課題に着目して案出されたも
ので、メタルヘッドの中空部内に充填材を均一な発泡状
態で充填することが出来、しかも成形が簡単である上、
不快な打球音を無くすことが出来るメタルウッドゴルフ
クラブヘッドの製造方法を提供することを目的とするも
のである。This invention was devised in view of such conventional problems, and it is possible to fill the hollow part of the metal head with a filler in a uniformly foamed state, and it is easy to mold.
It is an object of the present invention to provide a method for manufacturing a metal wood golf club head that can eliminate unpleasant hitting sounds.
〔課題を解決するための手段］
この発明は上記目的を達成するため、メタルヘッド本体
を中空状に形成し、このメタルヘッド本体の中空部内に
、気化性流体を内包させた塩化ビニリデン系重合体を主
材とするマイクロカプセルの発泡性ビーズから成る充填
材を所定量挿入し、しかる後、メタルヘッド本体と共に
前記充填材を所定時間加熱することにより、充填材を発
泡させることによってメタルヘッド本体の中空部内を充
填材で充満させることを要旨とするものである。[Means for Solving the Problems] In order to achieve the above object, the present invention provides a metal head body formed in a hollow shape, and a vinylidene chloride polymer in which a vaporizable fluid is encapsulated in the hollow portion of the metal head body. A predetermined amount of filler consisting of expandable beads of microcapsules mainly composed of The gist is to fill the hollow space with a filler.
〔発明の作用］
この発明は上記のように構成され、メタルヘッド本体の
中空部内に、気化性流体を内包させた塩化ビニリデン系
重合体を主材とするマイクロカプセルの発泡性ビーズか
ら成る充填材を約５ｇ挿入し、しかる後、メタルヘッド
本体と共に前記発泡性ビーズを１２０℃で、３０分間加
熱することにより、発泡性ビーズを発泡させることによ
ってメタルヘッド本体の中空部内を発泡性ビーズで均一
に充満させることことが出来、成形作業が簡単で、不快
な打球音を防止出来るものである。[Operation of the Invention] The present invention is constructed as described above, and includes a filler made of expandable beads of microcapsules mainly made of vinylidene chloride polymer containing a vaporizable fluid in the hollow part of the metal head body. Insert about 5 g of the foam, and then heat the foam beads together with the metal head body at 120°C for 30 minutes to foam the foam beads, so that the inside of the hollow part of the metal head body is uniformly filled with the foam beads. It can be filled with air, the molding process is easy, and unpleasant hitting sounds can be prevented.
ここで、気化性流体としては、プロパン、ｎ−７’タン
、イソブタン、ｎ・ペンタン、イソペタン等が挙げられ
るが、沸点等により、イソブタンが好適である。Here, examples of the vaporizable fluid include propane, n-7'tane, isobutane, n-pentane, isopetane, etc., but isobutane is preferable due to its boiling point and the like.
また、塩化ビニリデン系重合体としては、塩化ビニリデ
ンの単独重合体、もしくはこれと塩化ビニル、アクリロ
ニトリル、メタクリロニトリル等との共重合体が挙げら
れる。中でも塩化ビニリデンとアクリロニトリルとの共
重合体が好適である。Examples of vinylidene chloride polymers include homopolymers of vinylidene chloride, and copolymers of vinylidene chloride, acrylonitrile, methacrylonitrile, and the like. Among these, a copolymer of vinylidene chloride and acrylonitrile is preferred.
以下、添付図面に基づき、この発明の詳細な説明する。 Hereinafter, the present invention will be described in detail based on the accompanying drawings.
第１図は、この発明を実施したメタルウッドゴルフクラ
ブヘッドの正面図、第２図は第１図の■−■矢視断面図
を示し、１は金属材料から成るメタルヘッド本体、２は
メタルヘッド本体１の中空部３内に均一に発泡充填され
た発泡性ビーズから成る充填材を示している。FIG. 1 is a front view of a metal wood golf club head embodying the present invention, and FIG. 2 is a sectional view taken along arrows -■ in FIG. The filling material made of foamable beads is shown uniformly filled into the hollow portion 3 of the head body 1.
前記、充填材２としては、例えば、塩化ビリニデン／ア
クリロニトルの共重合体を殻とし、発泡剤としてイソブ
タンを内包・カプセル化した、熱膨張性中空マイクロス
フェア−（日本フィライト株製・・・商品名： ＥＸＰ
ＡＮＣＥＬ）を使用するものである。As the filler 2, for example, heat-expandable hollow microspheres (manufactured by Nippon Philite Co., Ltd., trade name: : EXP
ANCEL).
この熱膨張性中空マイクロスフェア−の性質としては、
粒度（平均）は、未膨張で１０μ。The properties of these thermally expandable hollow microspheres are as follows:
Particle size (average) is 10μ when unexpanded.
膨張後は４０μであり、粒径範囲は、未膨張で５〜３０
μ、膨張後は１０〜１００μとなる。After expansion, it is 40μ, and the particle size range is 5 to 30μ when unexpanded.
μ, 10 to 100 μ after expansion.
また嵩比重（ｇ／ Ｃ１１ｌ）は、未膨張で０．７、膨
張後は０．０２以下となり、真比重（ｇ／ ｄ）は、未
膨張で１．３、膨張後は０．０４以下となり、非常に軽
量である。In addition, the bulk specific gravity (g/C11l) is 0.7 when unexpanded and 0.02 or less after expansion, and the true specific gravity (g/d) is 1.3 when unexpanded and 0.04 or less after expansion. , very lightweight.
また、膨張温度としては、８０°Ｃ〜１５０°Ｃである
。Further, the expansion temperature is 80°C to 150°C.
次に、メタルウッドゴルフクラブヘッドの製造方法を説
明すると、まず第３図に示すような中空部３を備えたメ
タルヘッド本体ｌを形成し、このメタルヘッド本体ｌの
中空部３内に、ネック部４からブタンガスを封入した塩
化ビニリデン／アクリロニトリル共重合体を主材とする
マイクロカプセルの発泡性ビーズから成る充填材２を約
５ｇ挿入する。そして、しかる後、メタルヘッド本体１
と共に前記充填材２を１２０°Ｃで、３０分間加熱する
ことにより、発泡性ビーズを発泡させてメタルヘッド本
体１の中空部３内に、発泡性ビーズの充填材２を均一に
発泡充満させることが出来るものである。Next, to explain the manufacturing method of a metal wood golf club head, first, a metal head body l having a hollow part 3 as shown in FIG. About 5 g of filler 2 consisting of microcapsule foam beads mainly made of vinylidene chloride/acrylonitrile copolymer and filled with butane gas is inserted from part 4. After that, metal head body 1
At the same time, the filler material 2 is heated at 120° C. for 30 minutes to foam the expandable beads and uniformly fill the hollow portion 3 of the metal head body 1 with the filler material 2 made of expandable beads. This is something that can be done.
このような方法により成形するので、成形作業が極めて
短時間に効率良く行うことが出来、また従来のような不
快な打球音を防止することも出来るのである。Since the ball is molded using this method, the molding work can be carried out very efficiently in a very short time, and it is also possible to prevent the unpleasant hitting sound that occurs in the conventional method.
〔発明の効果］
この発明は、上記のようにメタルヘッド本体を中空状に
形成し、このメタルヘッド本体の中空部内に、ブタンガ
スを封入したサランを主材とするマイクロカプセルの発
泡性ビーズから成る充填材を所定量挿入し、しかる後、
メタルヘッド本体と共に前記充填材を所定時間加熱する
ことにより、充填材を発泡させることによってメタルヘ
ッド本体の中空部内を充填材で充満させるので、メタル
ヘッドの中空部内に充填材を均一な発泡状態で充填する
ことが出来、しかも成形作業が簡単で効率良く作業を行
うことが出来、更に従来のような不快な打球音を有効に
防止出来る効果がある。[Effects of the Invention] As described above, the present invention has a metal head body formed in a hollow shape, and the metal head body is made of foamable microcapsule beads mainly made of Saran and filled with butane gas in the hollow part of the metal head body. After inserting the specified amount of filler material,
By heating the filler together with the metal head body for a predetermined period of time, the filler foams and the hollow part of the metal head body is filled with the filler, so that the filler is uniformly foamed in the hollow part of the metal head. It can be filled, the molding operation is simple and efficient, and it can effectively prevent the unpleasant hitting sound that occurs in the conventional method.
第１図は、この発明を実施したメタルウッドゴルフクラ
ブヘッドの正面図、第２図は第１図の■−■矢視断面図
、第３図は成形工程を示す説明図である。
１・・・メタルヘッド本体、２・・・発泡性ビーズから
成る充填材、３・・・中空部。
第１図
代理人 弁理士 小 川 信 −FIG. 1 is a front view of a metal wood golf club head embodying the present invention, FIG. 2 is a sectional view taken along the line ■--■ in FIG. 1, and FIG. 3 is an explanatory diagram showing a molding process. DESCRIPTION OF SYMBOLS 1...Metal head main body, 2...Filling material made of foamable beads, 3...Hollow part. Figure 1 Agent: Patent Attorney Shin Ogawa −
Claims (1)
ドの製造方法において、前記メタルヘッド本体を中空状
に形成し、このメタルヘッド本体の中空部内に、気化性
流体を内包させた塩化ビニリデン系重合体を主材とする
マイクロカプセルの発泡性ビーズから成る充填材を所定
量挿入し、しかる後、メタルヘッド本体と共に前記充填
材を所定時間加熱することにより、充填材を発泡させる
ことによってメタルヘッド本体の中空部内を充填材で充
満させることを特徴とするメタルウッドゴルフクラブヘ
ッドの製造方法。In the method for manufacturing a metal wood golf club head whose center portion is filled with a core material, the metal head body is formed into a hollow shape, and the hollow portion of the metal head body is made of a vinylidene chloride polymer containing a vaporizable fluid. A predetermined amount of filler consisting of expandable beads of microcapsules mainly composed of A method for manufacturing a metal wood golf club head, characterized by filling a hollow part with a filler.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2226732A JPH04109973A (en) | 1990-08-30 | 1990-08-30 | Manufacture of metal wood golf club head |
| US07/750,306 US5135227A (en) | 1990-08-30 | 1991-08-27 | Wood-type metal golf club head and process for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2226732A JPH04109973A (en) | 1990-08-30 | 1990-08-30 | Manufacture of metal wood golf club head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04109973A true JPH04109973A (en) | 1992-04-10 |
Family
ID=16849742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2226732A Pending JPH04109973A (en) | 1990-08-30 | 1990-08-30 | Manufacture of metal wood golf club head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04109973A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8088025B2 (en) | 2009-07-29 | 2012-01-03 | Taylor Made Golf Company, Inc. | Golf club head |
-
1990
- 1990-08-30 JP JP2226732A patent/JPH04109973A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8088025B2 (en) | 2009-07-29 | 2012-01-03 | Taylor Made Golf Company, Inc. | Golf club head |
| US8328663B2 (en) | 2009-07-29 | 2012-12-11 | Taylor Made Golf Company, Inc. | Golf club head |
| US8517863B2 (en) | 2009-07-29 | 2013-08-27 | Taylor Made Golf Company, Inc. | Golf club head |
| US8814725B2 (en) | 2009-07-29 | 2014-08-26 | Taylor Made Golf Company, Inc. | Golf club head |
| US9265995B2 (en) | 2009-07-29 | 2016-02-23 | Taylor Made Golf Company, Inc. | Golf club head |
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