JP2000350798A - Wood club head and method of manufacturing the same - Google Patents
Wood club head and method of manufacturing the sameInfo
- Publication number
- JP2000350798A JP2000350798A JP11165346A JP16534699A JP2000350798A JP 2000350798 A JP2000350798 A JP 2000350798A JP 11165346 A JP11165346 A JP 11165346A JP 16534699 A JP16534699 A JP 16534699A JP 2000350798 A JP2000350798 A JP 2000350798A
- Authority
- JP
- Japan
- Prior art keywords
- shell
- head
- face
- opening
- face surface
- 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
Links
Landscapes
- Golf Clubs (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、ゴルフクラブ中
ドライバー、スプーンなどと呼ばれている中空殻体構造
を有する金属製のウッドクラブヘッドの製造方法及びこ
の方法により製造されたウッドクラブヘッドに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a metal wood club head having a hollow shell structure called a driver, a spoon or the like in a golf club, and a wood club head manufactured by the method.
【０００２】[0002]
【従来の技術】最近のウッドクラブヘッドは、打球の飛
距離の増加を狙って、フェース部材にチタニウム合金な
ど超硬度高強力の金属を採用してフェース面の反発係数
を高めたり、またフェース部材を薄肉として打球時にフ
ェース面を撓ませその反発力を利用するなどが試みられ
ている。しかも、ヘッドスピードを増すためにシャフト
が長尺化されるとともに、スイートエリアを拡大するた
めにヘッド自体は、金属製中空殻体構造の大型化が行わ
れている。また、このようなヘッドの製造に当たって
は、通常、フェース面を構成するフェース部材を除くヘ
ッド本体とは異種の金属材料が採用されたフェース部材
が、その周縁で前記ヘッド本体と溶接で接合されてい
る。2. Description of the Related Art In recent wood club heads, an ultra-hard and high-strength metal such as a titanium alloy is employed for the face member to increase the rebound coefficient of the face surface in order to increase the flight distance of the hit ball. It has been attempted to make the face thin so as to bend the face surface when hitting a ball and to use the repulsive force. In addition, the shaft has been lengthened to increase the head speed, and the head itself has been enlarged in metal hollow shell structure in order to expand the sweet area. Also, in manufacturing such a head, a face member made of a metal material different from the head body except for the face member constituting the face surface is usually joined to the head body by welding at the periphery thereof. I have.
【０００３】[0003]
【発明が解決しようとする課題】このようにシャフトの
長尺化などにより増速されたヘッドスピードでフェース
面に大きな撓みを起こさせるような過酷な負荷がヘッド
の特にフェース面に入力される一方、ヘッドは、前記の
ように、フェース面の周縁において椀状のヘッド本体の
開口部と溶接接合されて製造されるために、その溶接部
分に大きな歪が発生して、ボールを打撃したエネルギー
の多くがこの溶接部分の歪に吸収されて前記したフェー
ス面の撓みを小さくしてフェース面の反発力を減少させ
ることが想定されるとともに、溶接部分の耐久性低下が
懸念される。さらに、従来品では、溶接部分の残留歪や
変形のために、製品となった時点でヘッドのロフト角度
やロール、バルジ半径などが設計値通りに設定されてい
ないことが多々あり、また製品間でのバラツキが大きい
のが実情である。As described above, a severe load which causes a large deflection on the face surface at the increased head speed due to the elongation of the shaft or the like is input to the head especially the face surface. As described above, since the head is manufactured by being welded to the opening of the bowl-shaped head body at the peripheral edge of the face surface, a large distortion is generated in the welded portion, and the energy of the energy hitting the ball is generated. Many are assumed to be absorbed by the distortion of the welded portion to reduce the deflection of the face surface to reduce the repulsive force of the face surface, and there is a concern that the durability of the welded portion may be reduced. Furthermore, in conventional products, the loft angle, roll, bulge radius, etc. of the head are often not set as designed at the time of production due to residual distortion and deformation of the welded part. The fact is that there is a great deal of variation.
【０００４】このような状況に鑑みて、本発明の目的
は、ヘッドの溶接部分特にフェースの溶接部分の変形・
歪を減少するヘッドの製造方法を提供するとともに、飛
距離と耐久性に優れるウッドクラブヘッドを提供するこ
とである。[0004] In view of such circumstances, it is an object of the present invention to provide a method for deforming and / or deforming a welded portion of a head, particularly a welded portion of a face.
An object of the present invention is to provide a method of manufacturing a head that reduces distortion and a wood club head that is excellent in flight distance and durability.
【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、この発明の製造方法は、金属製中空殻体構造のウッ
ドクラブヘッドの製造方法であって、中空殻体をなすヘ
ッド本体を前部殻体と後部殻体とにフェース面に沿った
方向に２分割して夫々別個に製造し、前後に開口する前
部殻体の前部開口にフェース面を構成するフェース部材
を接合し、このフェース部材接合後に前部殻体を熱間フ
ォーミングし、前部のみ開口する後部殻体を鍛造又は鋳
造により製造し、この後部殻体の前部開口を前部殻体の
後部開口に接合したものである。また、この発明に係る
ウッドクラブヘッドは、中空殻体をなすヘッド本体を前
後に開口する前部殻体と前部のみ開口する後部殻体とに
フェース面に沿った方向に２分割して夫々別個に製造す
るとともに、フェース面を構成するフェース部材も別個
に製造し、これら３つの部材を接合してなるウッドクラ
ブヘッドであって、前部殻体の前面開口にフェース部材
を接合したものを熱間フォーミングし、鍛造又は鋳造に
より製造された後部殻体の前面開口に前部殻体の後部開
口を接合し、ヘッド本体のフェース面前縁から前部殻体
と後部殻体との接合部までの幅をヘッド本体のフェース
面前縁から後部殻体の後端までの全幅の４分の１から３
分の１に設定したものである。In order to achieve the above-mentioned object, a manufacturing method according to the present invention is a method for manufacturing a wood club head having a metal hollow shell structure, wherein a head body which forms a hollow shell is provided in front. The shell part and the rear shell body are divided into two parts in the direction along the face surface and separately manufactured, and the face member constituting the face surface is joined to the front opening of the front shell body opening front and rear, After this face member was joined, the front shell was hot formed, a rear shell having only the front opening was manufactured by forging or casting, and the front opening of the rear shell was joined to the rear opening of the front shell. Things. In the wood club head according to the present invention, the head body forming the hollow shell is divided into a front shell that opens forward and backward and a rear shell that opens only the front part in the direction along the face surface. A wood club head which is manufactured separately, and also separately manufactures a face member constituting the face surface, and which is obtained by bonding these three members, wherein the face member is bonded to the front opening of the front shell body. Hot forming, joining the rear opening of the front shell to the front opening of the rear shell manufactured by forging or casting, from the front edge of the face of the head body to the joint of the front shell and the rear shell Width of the head body from the front edge of the face to the rear end of the rear shell
It is set to one-half.
【０００６】[0006]
【発明の実施の形態】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。Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
【０００７】図面に示す実施例では、チタニウム合金製
のヘッド容積２８０ｃｃのドライバーヘッドの製造方法
及びこの製造方法で製造されたヘッドについて説明す
る。In the embodiment shown in the drawings, a method of manufacturing a driver head made of a titanium alloy and having a head volume of 280 cc and a head manufactured by this manufacturing method will be described.
【０００８】図１では、中空殻体をなすヘッド本体１を
前部殻体２と後部殻体３とにフェース面４に沿った方向
に２分割して夫々別個に製造してある状態を示す。前部
殻体２は前後に開口し、その前部開口にフェース面４を
構成するフェース部材５を接合してある。フェース部材
５が接合された前部殻体２は熱間フォーミングされる。
前部殻体２及び後部殻体３は鍛造又は鋳造により所定の
中空形状に製造され、フェース部材５は、板又は丸棒の
素材を鍛造、フォーミング加工、鋳造のいずれかにより
所定の寸法のプレート状に製造する。前部殻体２は前後
が開口し、リング状の中空体に製造されており、このリ
ング状の前部開口に前述した板状のフェース部材５がそ
の周縁で溶接されて接合される。また、前部殻体２には
ホーゼル６が設けてある。FIG. 1 shows a state in which a head body 1 forming a hollow shell is divided into a front shell 2 and a rear shell 3 in a direction along a face surface 4 and separately manufactured. . The front shell 2 is opened forward and backward, and a face member 5 constituting the face surface 4 is joined to the front opening. The front shell 2 to which the face member 5 is joined is hot formed.
The front shell 2 and the rear shell 3 are manufactured into a predetermined hollow shape by forging or casting, and the face member 5 is made of a plate or a round bar by forging, forming, or casting. Manufacture in a shape. The front shell 2 is formed into a ring-shaped hollow body with front and rear openings, and the above-mentioned plate-shaped face member 5 is welded to the ring-shaped front opening at the periphery thereof and joined. A hosel 6 is provided on the front shell 2.
【０００９】図２は、ほぼ製品の最終形状と同一形状と
された型枠１０内に予め約６００℃に加熱されたフェー
ス部材５が接合された前部殻体２が、中子１１によって
押し付けられて圧入される。このときの押し付ける圧力
は５００トンとした。このような熱間フォーミングを行
うことにより、フェース部材５の周縁の溶接部分に潜在
している溶接時に発生した残留歪や変形がほぼ完全に取
り除かれる。なお、このような加熱温度と押し付け圧力
とは、殻体２の材質によって変更されることは勿論であ
る。FIG. 2 shows that a front shell 2 in which a face member 5 previously heated to about 600 ° C. is joined in a mold 10 having substantially the same shape as the final shape of a product is pressed by a core 11. And press-fit. The pressing pressure at this time was 500 tons. By performing such hot forming, residual distortion or deformation generated at the time of welding, which is latent in the welded portion at the peripheral edge of the face member 5, is almost completely removed. The heating temperature and the pressing pressure may be changed depending on the material of the shell 2.
【００１０】図２に示すような熱間フォーミングを終了
したのち、前部殻体２のクラウンとなる上面の一端に丸
穴が開けられてシャフト（図示せず）が挿入されるパイ
プ状のホーゼル６をこの丸穴に溶接する。次いで、前部
殻体２の後部開口に後部殻体３の前部開口を溶接などに
より接合する。After completion of the hot forming as shown in FIG. 2, a pipe-shaped hosel into which a shaft (not shown) is inserted by making a round hole at one end of the upper surface serving as a crown of the front shell 2 is inserted. 6 is welded to this round hole. Next, the front opening of the rear shell 3 is joined to the rear opening of the front shell 2 by welding or the like.
【００１１】図３は完成したウッドクラブヘッドの断面
を示す。前部殻体２と後部殻体３とを接合したヘッド本
体１の上面はクラウン１Ａを形成し、下面はソール１Ｂ
を形成する。フェース部材５と前部殻体２の接合部を符
号７で示す。また、前部殻体２と後部殻体３との接合部
を符号８で示す。ヘッド本体１のフェース面４の前縁す
なわちリーディングエッジ４Ａから後部殻体３の後端ま
での全幅を８７ｍｍとし、前記前縁４Ａから接合部８の
中心線までの幅を２９ｍｍとした。全幅中この前縁４Ａ
から接合部８の中心線までの幅が占める割合は４分の１
乃至３分の１に設定するようにする。この実施例では３
分の１とした。前縁４Ａから接合部８までの幅が全幅の
４分の１より小さいと接合部８がフェース４に近くなり
すぎで打球時の衝撃を大きく受ける結果を招くので好ま
しくない。また、この接合部８までの幅が全幅の３分の
１より大きくなるとヘッド前方部分の熱間フォーミング
の実施に当たり種々のトラブルを招きやすくなるので好
ましくない。また、フェース部材５の肉厚は２．５ｍ
ｍ、クラウン１Ａの肉厚は１．２ｍｍ、ソール１Ｂの肉
厚は１．５ｍｍとし、フェース高さは４５ｍｍとした。FIG. 3 shows a cross section of the completed wood club head. The upper surface of the head body 1 in which the front shell 2 and the rear shell 3 are joined forms a crown 1A, and the lower surface is a sole 1B.
To form The joint between the face member 5 and the front shell 2 is indicated by reference numeral 7. In addition, reference numeral 8 denotes a junction between the front shell 2 and the rear shell 3. The total width from the front edge of the face surface 4 of the head body 1, ie, the leading edge 4A, to the rear end of the rear shell 3 was 87 mm, and the width from the front edge 4A to the center line of the joint 8 was 29 mm. This leading edge 4A in the full width
1/4 of the width from the center line of the joint 8 to the center line
To 1/3. In this embodiment, 3
One-half. If the width from the front edge 4A to the joining portion 8 is smaller than one-fourth of the entire width, the joining portion 8 becomes too close to the face 4 and undesirably receives a large impact when hitting a ball. If the width up to the joint 8 is larger than one-third of the entire width, various troubles are likely to occur when performing hot forming at the front portion of the head, which is not preferable. The thickness of the face member 5 is 2.5 m.
m, the thickness of the crown 1A was 1.2 mm, the thickness of the sole 1B was 1.5 mm, and the face height was 45 mm.
【００１２】[0012]
【発明の効果】以上説明したように、この発明によれ
ば、フェース部材が接合された前部殻体は、熱間フォー
ミングが施されるので、フェース部材が接合された溶接
部分の残留歪や変形が除去されてこの部分の強度及び耐
久性が増加する。従って、打球時の衝撃エネルギーがフ
ェース部材の溶接個所の変形や残留歪で吸収されること
が少なくなり、フェース面の撓みが増加され、この結果
フェース面の反発力が高まってボールが強く弾かれるよ
うになり、飛距離の増加を得ることができる。また、熱
間フォーミングによりフェース部材と前部殻体との溶接
部分の耐久性が向上するので、フェース面やそれ以外の
ヘッド各部分の肉厚をより一層薄くすることができるよ
うになることから、フェース面の撓みを増して反発力を
高めることが可能となるとともに、ヘッド重量を増加す
ることなくヘッドを大型化することができ、長尺シャフ
トを装着しても全体重量を軽くすることができ、ヘッド
スピードの向上に貢献できる。As described above, according to the present invention, the front shell joined to the face member is subjected to hot forming, so that the residual distortion of the welded portion joined to the face member is reduced. The deformation is removed and the strength and durability of this part are increased. Therefore, the impact energy at the time of hitting the ball is less absorbed by the deformation or residual strain of the welded portion of the face member, the deflection of the face surface is increased, and as a result, the repulsive force of the face surface is increased and the ball is strongly hit. As a result, an increase in the flight distance can be obtained. In addition, since the durability of the welded portion between the face member and the front shell body is improved by hot forming, the thickness of the face surface and other parts of the head can be further reduced. , The rebound force can be increased by increasing the deflection of the face surface, the head can be enlarged without increasing the head weight, and the overall weight can be reduced even when a long shaft is attached. And contribute to the improvement of head speed.
【００１３】ヘッド本体のフェース面前縁から前部殻体
と後部殻体との接合部までの幅をヘッド本体のフェース
面前縁から後部殻体の後端までの全幅の４分の１から３
分の１に設定したヘッドでは、接合部分が打撃場所、す
なわちフェース面から所定の距離をとることとなり、前
部殻体と後部殻体の接合部の打撃荷重の負担が軽減さ
れ、ヘッドの耐久性を向上させる。さらにまた、接合部
を溶接した場合に、溶接部分の残留歪や変形の減少によ
りロフト角、ロール、バルジなどの精度が向上する。The width from the front edge of the face surface of the head body to the joint between the front shell and the rear shell is one-fourth to three times the total width from the front edge of the face of the head body to the rear end of the rear shell.
In the head set to one-half, the joint portion takes a predetermined distance from the striking place, that is, the face surface, and the load of the striking load on the joint portion between the front shell and the rear shell is reduced, and the durability of the head is reduced. Improve the performance. Further, when the joint is welded, the accuracy of the loft angle, the roll, the bulge, and the like are improved by reducing the residual strain and deformation of the welded portion.
【図１】この発明の完成寸前における斜視図。FIG. 1 is a perspective view of the present invention just before completion.
【図２】熱間フォーミングの説明図。FIG. 2 is an explanatory diagram of hot forming.
【図３】完成されたヘッドの断面図。FIG. 3 is a sectional view of a completed head.
１ ヘッド本体 ２ 前部殻体 ３ 後部殻体 ４ フェース面 ５ フェース部材 ７，８ 接合部 DESCRIPTION OF SYMBOLS 1 Head main body 2 Front shell 3 Rear shell 4 Face surface 5 Face member 7, 8 Joint
Claims (2)
ドの製造方法であって、 中空殻体をなすヘッド本体を前部殻体と後部殻体とにフ
ェース面に沿った方向に２分割して夫々別個に製造し、 前後に開口する前部殻体の前部開口にフェース面を構成
するフェース部材を接合し、 このフェース部材接合後に前部殻体を熱間フォーミング
し、 前部のみ開口する後部殻体を鍛造又は鋳造により製造
し、 この後部殻体の前部開口を前部殻体の後部開口に接合し
たことを特徴とするウッドクラブヘッドの製造方法。1. A method for manufacturing a wood club head having a metal hollow shell structure, comprising dividing a head body forming a hollow shell into a front shell and a rear shell in a direction along a face surface. The front shell of the front shell that opens forward and backward is joined with the face member that constitutes the face surface. After this face member is joined, the front shell is hot formed, and only the front part is opened. A method for manufacturing a wood club head, comprising: manufacturing a rear shell to be formed by forging or casting; and joining a front opening of the rear shell to a rear opening of the front shell.
する前部殻体と前部のみ開口する後部殻体とにフェース
面に沿った方向に２分割して夫々別個に製造するととも
に、フェース面を構成するフェース部材も別個に製造
し、これら３つの部材を接合してなるウッドクラブヘッ
ドであって、 前部殻体の前面開口にフェース部材を接合したものを熱
間フォーミングし、 鍛造又は鋳造により製造された後部殻体の前面開口に前
部殻体の後部開口を接合し、 ヘッド本体のフェース面前縁から前部殻体と後部殻体と
の接合部までの幅をヘッド本体のフェース面前縁から後
部殻体の後端までの全幅の４分の１から３分の１に設定
したことを特徴とするウッドクラブヘッド。2. A head body forming a hollow shell body is divided into a front shell body opening forward and backward and a rear shell body opening only the front part in a direction along the face surface, and separately manufactured. A face member constituting the face surface is also manufactured separately, and a wood club head in which these three members are joined, in which the face member is joined to the front opening of the front shell body, is hot-formed and forged. Alternatively, the rear opening of the front shell is joined to the front opening of the rear shell manufactured by casting, and the width from the front edge of the face surface of the head body to the joint between the front shell and the rear shell is set to the width of the head body. A wood club head characterized in that the width is set to 1/4 to 1/3 of the entire width from the front edge of the face to the rear end of the rear shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16534699A JP3459792B2 (en) | 1999-06-11 | 1999-06-11 | Wood club head manufacturing method and wood club head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16534699A JP3459792B2 (en) | 1999-06-11 | 1999-06-11 | Wood club head manufacturing method and wood club head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000350798A true JP2000350798A (en) | 2000-12-19 |
| JP3459792B2 JP3459792B2 (en) | 2003-10-27 |
Family
ID=15810613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16534699A Expired - Fee Related JP3459792B2 (en) | 1999-06-11 | 1999-06-11 | Wood club head manufacturing method and wood club head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3459792B2 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002017913A (en) * | 2000-07-07 | 2002-01-22 | Sumitomo Rubber Ind Ltd | Golf club head and its manufacturing method |
| JP2003000774A (en) * | 2001-06-19 | 2003-01-07 | Sumitomo Rubber Ind Ltd | Golf club head |
| JP2007044489A (en) * | 2005-07-14 | 2007-02-22 | Jopuro:Kk | Method for manufacturing metal golf club head |
| US7575525B2 (en) | 2006-12-20 | 2009-08-18 | Bridgestone Sports Co., Ltd. | Golf club head |
| US7819758B2 (en) | 2008-03-26 | 2010-10-26 | Bridgestone Sports Co., Ltd. | Golf club head |
| US7828676B2 (en) | 2008-03-28 | 2010-11-09 | Bridgestone Sports Co., Ltd | Golf club head |
| JP2010273804A (en) * | 2009-05-27 | 2010-12-09 | Sri Sports Ltd | Golf club head |
| US8241140B2 (en) | 2001-07-05 | 2012-08-14 | Bridgestone Sports Co., Ltd. | Golf club head |
| US8376879B2 (en) | 2009-11-10 | 2013-02-19 | Bridgestone Sports Co., Ltd. | Golf club head |
| US20150343282A1 (en) * | 2011-11-30 | 2015-12-03 | Nike, Inc. | Golf Clubs and Golf Club Heads |
| US9855477B2 (en) | 2011-11-30 | 2018-01-02 | Nike, Inc. | Golf clubs and golf club heads |
| US9901788B2 (en) | 2011-11-30 | 2018-02-27 | Nike, Inc. | Golf club head or other ball striking device |
| US9956463B2 (en) | 2011-11-30 | 2018-05-01 | Nike, Inc. | Golf clubs and golf club heads |
| US10046211B2 (en) | 2014-05-29 | 2018-08-14 | Nike, Inc. | Golf clubs and golf club heads |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022120289A (en) * | 2021-02-05 | 2022-08-18 | 住友ゴム工業株式会社 | golf club head |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3013980U (en) | 1995-01-25 | 1995-07-25 | チン チイ チェン | Golf club head |
-
1999
- 1999-06-11 JP JP16534699A patent/JP3459792B2/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002017913A (en) * | 2000-07-07 | 2002-01-22 | Sumitomo Rubber Ind Ltd | Golf club head and its manufacturing method |
| JP2003000774A (en) * | 2001-06-19 | 2003-01-07 | Sumitomo Rubber Ind Ltd | Golf club head |
| US8241140B2 (en) | 2001-07-05 | 2012-08-14 | Bridgestone Sports Co., Ltd. | Golf club head |
| JP2007044489A (en) * | 2005-07-14 | 2007-02-22 | Jopuro:Kk | Method for manufacturing metal golf club head |
| US7575525B2 (en) | 2006-12-20 | 2009-08-18 | Bridgestone Sports Co., Ltd. | Golf club head |
| US8216089B2 (en) | 2008-03-26 | 2012-07-10 | Bridgestone Sports Co., Ltd. | Golf club head |
| US7819758B2 (en) | 2008-03-26 | 2010-10-26 | Bridgestone Sports Co., Ltd. | Golf club head |
| US8033932B2 (en) | 2008-03-28 | 2011-10-11 | Bridgestone Sports Co., Ltd | Golf club head |
| US7828676B2 (en) | 2008-03-28 | 2010-11-09 | Bridgestone Sports Co., Ltd | Golf club head |
| US8323121B2 (en) | 2008-03-28 | 2012-12-04 | Bridgestone Sports Co., Ltd. | Golf club head |
| JP2010273804A (en) * | 2009-05-27 | 2010-12-09 | Sri Sports Ltd | Golf club head |
| US8376879B2 (en) | 2009-11-10 | 2013-02-19 | Bridgestone Sports Co., Ltd. | Golf club head |
| US20150343282A1 (en) * | 2011-11-30 | 2015-12-03 | Nike, Inc. | Golf Clubs and Golf Club Heads |
| US9855477B2 (en) | 2011-11-30 | 2018-01-02 | Nike, Inc. | Golf clubs and golf club heads |
| US9901788B2 (en) | 2011-11-30 | 2018-02-27 | Nike, Inc. | Golf club head or other ball striking device |
| US9943733B2 (en) * | 2011-11-30 | 2018-04-17 | Nike, Inc. | Golf clubs and golf club heads |
| US9950218B2 (en) | 2011-11-30 | 2018-04-24 | Nike, Inc. | Golf club head or other ball striking device |
| US9956463B2 (en) | 2011-11-30 | 2018-05-01 | Nike, Inc. | Golf clubs and golf club heads |
| US10046211B2 (en) | 2014-05-29 | 2018-08-14 | Nike, Inc. | Golf clubs and golf club heads |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3459792B2 (en) | 2003-10-27 |
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