JPH0521591B2 - - Google Patents
Info
- Publication number
- JPH0521591B2 JPH0521591B2 JP61077213A JP7721386A JPH0521591B2 JP H0521591 B2 JPH0521591 B2 JP H0521591B2 JP 61077213 A JP61077213 A JP 61077213A JP 7721386 A JP7721386 A JP 7721386A JP H0521591 B2 JPH0521591 B2 JP H0521591B2
- Authority
- JP
- Japan
- Prior art keywords
- head
- mold
- wax
- cavity
- back side
- 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 - Lifetime
Links
- 230000005484 gravity Effects 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 2
- 229910010293 ceramic material Inorganic materials 0.000 claims 1
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 230000001154 acute effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Golf Clubs (AREA)
Description
【発明の詳細な説明】
「産業上の利用分野」
この発明は、低重心かつ重心深度の深い金属ク
ラブヘツドの製法に関するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for manufacturing a metal club head having a low center of gravity and a deep center of gravity.
「従来の技術」
周知のように、ゴルフの金属クラブヘツドは、
第２図に示すように、片面にゴルフボールを打つ
フエース（打面）１が形成されるとともに裏側に
重心Ｇ調整用の凹部２が形成されているヘツド３
と、このヘツド３をシヤフトに連結するためのソ
ケツト４とから構成されている。この金属クラブ
ヘツドは、一般に下記のように、ロストワツクス
法と呼ばれる製法により一体成形されている。``Prior Art'' As is well known, golf metal club heads are
As shown in Fig. 2, a head 3 has a golf ball hitting face 1 formed on one side and a recess 2 for adjusting the center of gravity G on the back side.
and a socket 4 for connecting the head 3 to a shaft. This metal club head is generally integrally molded by a manufacturing method called the lost wax method, as described below.
すなわち、ヘツド３の裏側部分のキヤビテイを
有する下型と、ヘツド３のフエース１部分および
ソケツト４のキヤビテイを有する上型からなるワ
ツクス成型金型から得られたクラブヘツドのワツ
クス成型品にセラミツク山をコーテイングし、こ
れを焼結して鋳込み用セラミツクシエルを形成
し、このセラミツクシエル中に金属を鋳込み、固
化した後、前記セラミツクシエルを粉砕除去して
鋳造品を得、これを研摩仕上げしてクラブヘツド
とする製法である。 That is, a wax molded product of a club head obtained from a wax molding mold consisting of a lower mold having a cavity for the back side of the head 3 and an upper mold having a cavity for the face 1 portion of the head 3 and the socket 4 is coated with a ceramic mountain. Then, this is sintered to form a ceramic shell for casting, and after the metal is cast into this ceramic shell and solidified, the ceramic shell is crushed and removed to obtain a cast product, which is polished and finished as a club head. This is the manufacturing method.
「発明が解決しようとする問題点」
ところで、前記ワツクス成型金型においては、
第３図に示すように、その下型５と上型６との嵌
合面７に対して、クラブヘツドのフエース１は平
行となつており、その結果、上型６内のソケツト
４のキヤビテイ８は上記嵌合面７に対して鋭角を
なしている。従つて、ワツクス注入後の離型に当
たつては、下型を取り去つた後、上型からワツク
ス成型品を取り出すことになる。このように成型
されるワツクス成型品を損なわずに下型をはずす
ためには、ヘツド３の凹部２の形状、即ち凹部２
の最深部の角度θ（第２図）は91゜〜93゜が限度で、
90゜以下には設定できなかつた。"Problems to be solved by the invention" By the way, in the wax mold,
As shown in FIG. 3, the face 1 of the club head is parallel to the fitting surface 7 between the lower mold 5 and the upper mold 6, and as a result, the cavity 8 of the socket 4 in the upper mold 6 forms an acute angle with respect to the fitting surface 7. Therefore, when releasing the mold after injecting the wax, the wax molded product is taken out from the upper mold after removing the lower mold. In order to remove the lower mold without damaging the wax molded product molded in this way, the shape of the recess 2 of the head 3, that is, the recess 2
The angle θ at the deepest point (Fig. 2) is limited to 91° to 93°,
It was not possible to set it below 90°.
その結果、第２図に示すように、製造されたク
ラブヘツドにおいては、ヘツド３の下部３ａ部分
の容積が大きくならざるを得なくなり、ヘツド３
の重量調整が困難になつていた。また、ヘツド３
においてフエース１側の重量が大きく、フエース
１からの重心深度が深くならない欠点がある。 As a result, as shown in FIG. 2, in the manufactured club head, the volume of the lower part 3a of the head 3 has to be increased,
It was becoming difficult to adjust the weight. Also, head 3
The disadvantage is that the weight on the face 1 side is large, and the depth of the center of gravity from the face 1 is not deep.
このように、従来の金属クラブヘツドの製法で
は、低重心で、かつ重心深度の深い高性能なクラ
ブヘツドを得ることが困難であるという問題点が
あつた。 As described above, the conventional method for manufacturing metal club heads has the problem that it is difficult to obtain high-performance club heads with a low center of gravity and a deep center of gravity.
「問題点を解決するための手段」
この発明においては、ヘツドのフエースの裏側
に設けられる重心調整用の凹部を形成する金型の
肉厚部分を置中子とし、これによつて凹部の最深
部の角度を90゜以下に設定し、ソールの下面を外
方に凸状の円弧形とし、かつソールの肉厚をその
フエース側よりもバツク側を厚くし、ヘツド裏側
のキヤビテイが大きなワツクス金型を形成して、
低重心かつ重心深度の深い金属クラブヘツドを容
易に得ることができるようにしたものである。``Means for Solving the Problems'' In this invention, the thick part of the mold that forms the recess for adjusting the center of gravity provided on the back side of the face of the head is used as a core, and the deepest part of the recess is thereby The angle of the lower part of the head is set to 90 degrees or less, the lower surface of the sole is made into an outwardly convex arc shape, and the thickness of the sole is thicker on the back side than on the face side, and the cavity on the back side of the head is made of wax. form a mold,
This makes it possible to easily obtain a metal club head with a low center of gravity and a deep center of gravity.
以下、この発明を実施例によりさらに詳しく説
明する。 Hereinafter, this invention will be explained in more detail with reference to Examples.
「実施例」
第１図ａ，ｂ，ｃは、この発明の一実施例を説
明するもので、この発明の要部であるワツクス成
型品の製造工程を示すものである。第１図ａに示
すように、ワツクス成型品を形成する金型１０
は、上型１１および下型１２から構成されてい
る。上型１１には前記ヘツド３の裏側部分のキヤ
ビテイ１３が形成されている。このキヤビテイ１
３は、ヘツドのソール部分のキヤビテイを含むも
のである。ソール部のキヤビテイは図示のように
ソール部の下面が外方に凸状の円弧状となつてお
り、かつその厚みがフエース側よりバツク側の方
が厚くなるようにその形状が定められている。ま
た、下型１２には前記ヘツド３のフエース１部分
およびソケツト４のキヤビテイ１４が形成されて
いる。上記上型１１は型本体１１ａと置中子１１
ｂとから構成され、置中子１１ｂは止めピン１１
ｃによつて型本体１１ａに固定されるようになつ
ている。置中子１１ｂは前記ヘツド３の重心調整
用の凹部２を形成するためのもので、ワツクスの
注入が終了して硬化するまで型本体１１ａに固定
されており、離型時に止めピン１１ｃを外すこと
によつて型本体１１ａと分離され、第１図ｂ，ｃ
に示すように型本体１１ａの脱型後、ワツクス成
型品１５から取り外される。Embodiment FIGS. 1a, b, and c illustrate an embodiment of the present invention, and show the manufacturing process of a wax molded product, which is the essential part of the present invention. As shown in FIG. 1a, a mold 10 for forming a wax molded product
is composed of an upper mold 11 and a lower mold 12. A cavity 13 on the back side of the head 3 is formed in the upper die 11. This cavity 1
3 includes a cavity in the sole portion of the head. As shown in the diagram, the cavity of the sole has an arcuate shape with the lower surface of the sole convex outward, and its shape is determined so that it is thicker on the back side than on the face side. . Further, a face 1 portion of the head 3 and a cavity 14 of the socket 4 are formed in the lower mold 12. The upper mold 11 includes a mold main body 11a and a placing core 11.
b, and the placing core 11b is made up of a retaining pin 11.
c to be fixed to the mold body 11a. The placing core 11b is used to form the recess 2 for adjusting the center of gravity of the head 3, and is fixed to the mold body 11a until the wax injection is completed and hardened, and the retaining pin 11c is removed when releasing the mold. Particularly, it is separated from the mold body 11a, and as shown in FIGS.
After the mold body 11a is demolded, it is removed from the wax molded product 15 as shown in FIG.
このように、置中子１１ｂを設ければ、ヘツド
３の凹部２の形状、すなわち、第２図に示す凹部
２の最深部の角度θを90゜以下の任意の角度に設
定したクラブヘツドのワツクス成型品を得ること
ができる。その結果、ロストワツクス法において
は、ワツクス成型品が得られれば、どのような形
状の鋳造品を形成することができるので、上記方
法によれば、決められた外形寸法を有するクラブ
ヘツドにおいて、ヘツドの重心をより低くすると
ともにフエースからの深度もさらに深くすること
が可能になる。 In this way, if the core 11b is provided, the shape of the recess 2 of the head 3, that is, the wax of the club head where the angle θ of the deepest part of the recess 2 shown in FIG. 2 is set to an arbitrary angle of 90 degrees or less Molded products can be obtained. As a result, in the lost wax method, once a wax molded product is obtained, a cast product of any shape can be formed. It becomes possible to lower the angle and further increase the depth from the face.
「発明の効果」
以上説明したように、この発明に係る金属クラ
ブヘツドの製法は、ヘツドのフエースの裏側に設
けられる重心調整用の凹部を形成するワツクス成
型金型の肉厚部分を置中子とし、これによつて凹
部の最深部の角度を90゜以下に設定し、ソールの
下面を外方に凸状の円弧形とし、かつソールの肉
厚をそのフエース側よりもバツク側を厚くし、ヘ
ツド裏側のキヤビテイが大きなワツクス金型を形
成して行なうものなので、低重心かつ重心深度の
深い金属クラブヘツドを容易に得ることができ
る。"Effects of the Invention" As explained above, the method for manufacturing a metal club head according to the present invention uses the thick part of the wax mold that forms the center of gravity adjustment recess provided on the back side of the face of the head as a core. As a result, the angle of the deepest part of the recess is set to 90 degrees or less, the lower surface of the sole is made into an outwardly convex arc shape, and the thickness of the sole is made thicker on the back side than on the face side. Since this is done by forming a wax mold with a large cavity on the back side of the head, a metal club head with a low center of gravity and a deep center of gravity can be easily obtained.
第１図ａ，ｂ，ｃはこの発明に係る金属クラブ
ヘツドの製法の一実施例を説明するためのもの
で、各々この発明方法の要部であるワツクス成型
品の形成工程を示す図、第２図は従来の金属クラ
ブヘツドの一部断面視した正面図、第３図は従来
のワツクス成形用の金型の断面構成図である。
１……フエース、２……凹部、３……ヘツド、
４……ソケツト、１０……ワツクス成型金型、１
１……上型、１１ｂ……置中子、１２……下型、
１３……ヘツドの裏側部分のキヤビテイ、１４…
…ヘツドのフエースとソケツト部分のキヤビテ
イ、１５……ワツクス成型品、Ｇ……ヘツドの重
心、θ……凹部の最深部の角度。
Figures 1a, b, and c are for explaining one embodiment of the method for manufacturing a metal club head according to the present invention, and Figs. This figure is a partially sectional front view of a conventional metal club head, and FIG. 3 is a sectional view of a conventional wax molding die. 1...Face, 2...Recess, 3...Head,
4...Socket, 10...Wax mold, 1
1... Upper mold, 11b... Placed core, 12... Lower mold,
13...Cavity on the back side of the head, 14...
...Cavity of head face and socket part, 15...Wax molded product, G...Center of gravity of head, θ...Angle of deepest part of recess.
Claims (1)
のソールを含む裏側部分のキヤビテイが形成され
るとともに他方の型にヘツドのフエースおよびソ
ケツト部分のキヤビテイが形成されているワツク
ス成型金型から得られたワツクス成型品にセラミ
ツク材をコーテイングし、これを焼結して鋳込み
用セラミツクシエルを形成し、このセラミツクシ
エル中に金属を鋳込み、固化した後、前記セラミ
ツクシエルを除去することによつてクラブヘツド
を得る金属クラブヘツドの製法において、 前記ヘツドのフエースの裏側に設けられる重心
調整用の凹部を形成するワツクス成型金型の肉厚
部を置中子とし、この置中子によつて前記凹部の
最深部の角度を90度以下になるように設定し、か
つソールの肉厚をそのフエース側よりもバツク側
を厚くなるように設定するとともに、ソールの下
面を外方に凸状の円弧形に設定するキヤビテイを
形成することにより、ヘツド裏側のキヤビテイが
大きなワツクス成型金型を形成し、低重心で重心
深度の深い金属クラブヘツドを得ることを特徴と
する金属クラブヘツドの製法。[Claims] 1. Consisting of an upper mold and a lower mold, one mold forms a cavity for the back side including the sole of the head, and the other mold forms a cavity for the face and socket portion of the head. A wax molded product obtained from a wax molding mold is coated with a ceramic material, and this is sintered to form a ceramic shell for casting. Metal is cast into the ceramic shell and after solidification, the ceramic shell is removed. In the manufacturing method of a metal club head, a thick part of a wax mold that forms a recess for adjusting the center of gravity provided on the back side of the face of the head is used as a core, and a core is placed on the core. Therefore, the angle of the deepest part of the recess is set to be 90 degrees or less, the thickness of the sole is set to be thicker on the back side than on the face side, and the lower surface of the sole is made to convex outward. This method of manufacturing a metal club head is characterized in that by forming a cavity set in an arc shape, a large wax molding mold is formed with a cavity on the back side of the head to obtain a metal club head with a low center of gravity and a deep center of gravity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61077213A JPS62233176A (en) | 1986-04-03 | 1986-04-03 | Production of metal club head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61077213A JPS62233176A (en) | 1986-04-03 | 1986-04-03 | Production of metal club head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62233176A JPS62233176A (en) | 1987-10-13 |
| JPH0521591B2 true JPH0521591B2 (en) | 1993-03-24 |
Family
ID=13627553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61077213A Granted JPS62233176A (en) | 1986-04-03 | 1986-04-03 | Production of metal club head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62233176A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5330187A (en) * | 1992-08-05 | 1994-07-19 | Callaway Golf Company | Iron golf club head with dual intersecting recesses |
| US5626530A (en) * | 1992-08-05 | 1997-05-06 | Callaway Golf Company | Golf club head with sole bevel indicia |
| US5409229A (en) * | 1992-08-05 | 1995-04-25 | Callaway Golf Company | Golf club head with audible vibration attenuation |
| US5472203A (en) * | 1992-08-05 | 1995-12-05 | Callaway Golf Company | Iron golf club head with dual intersecting recesses |
| JP2838877B2 (en) * | 1995-04-03 | 1998-12-16 | 株式会社遠藤製作所 | Golf club manufacturing method |
| US5776010A (en) * | 1997-01-22 | 1998-07-07 | Callaway Golf Company | Weight structure on a golf club head |
| JP4852821B2 (en) * | 2004-01-21 | 2012-01-11 | ブリヂストンスポーツ株式会社 | Golf club head and manufacturing method thereof |
| JP7428010B2 (en) * | 2020-02-28 | 2024-02-06 | 住友ゴム工業株式会社 | golf club head |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053140A (en) * | 1972-07-24 | 1975-05-12 | ||
| JPS56132972A (en) * | 1980-03-24 | 1981-10-17 | Yoko Seisakusho Kk | Iron head and its manufacture |
| JPS60129062A (en) * | 1983-12-16 | 1985-07-10 | ダイワゴルフ株式会社 | Production of iron club head |
| JPS60241466A (en) * | 1984-05-15 | 1985-11-30 | マルマンゴルフ株式会社 | Metal head of golf club |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59193462U (en) * | 1983-06-11 | 1984-12-22 | ダイワゴルフ株式会社 | iron club head |
-
1986
- 1986-04-03 JP JP61077213A patent/JPS62233176A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053140A (en) * | 1972-07-24 | 1975-05-12 | ||
| JPS56132972A (en) * | 1980-03-24 | 1981-10-17 | Yoko Seisakusho Kk | Iron head and its manufacture |
| JPS60129062A (en) * | 1983-12-16 | 1985-07-10 | ダイワゴルフ株式会社 | Production of iron club head |
| JPS60241466A (en) * | 1984-05-15 | 1985-11-30 | マルマンゴルフ株式会社 | Metal head of golf club |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62233176A (en) | 1987-10-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |