JP2001204858A - Golf club head - Google Patents
Golf club headInfo
- Publication number
- JP2001204858A JP2001204858A JP2000016449A JP2000016449A JP2001204858A JP 2001204858 A JP2001204858 A JP 2001204858A JP 2000016449 A JP2000016449 A JP 2000016449A JP 2000016449 A JP2000016449 A JP 2000016449A JP 2001204858 A JP2001204858 A JP 2001204858A
- Authority
- JP
- Japan
- Prior art keywords
- head
- golf club
- specific gravity
- weight
- weight portion
- 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
Landscapes
- Golf Clubs (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、金属製中空ゴルフ
クラブヘッドに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal hollow golf club head.
【０００２】[0002]
【従来の技術】従来は、金属製中空ゴルフクラブヘッド
やユーティリティークラブのソール部の一部に比重の重
い金属を固定し、重心を低くしたり、深くしたりするヘ
ッド機能のみを優先させるものであった。2. Description of the Related Art Conventionally, a metal having a high specific gravity is fixed to a part of a sole portion of a metal hollow golf club head or a utility club, and only a head function for lowering or deepening a center of gravity is prioritized. there were.
【０００３】[0003]
【課題を解決しようとする課題】しかしながら、最近の
金属製中空ゴルフクラブヘッドは、大型化が進み、ヘッ
ドのクラウン部１２やサイド部１４の外殻をなす金属の
厚みが、１．５ｍｍ以下と薄くなってきており、ヘッド
本体の質量調整を行う研磨工程にも、細心の注意が必要
となってきている。更に、チタニウム合金などでは、比
重が小さく、質量が落ちにくいばかりか、急いで、研磨
を行うとチタニウム合金が酸化することにより硬化し
て、研磨できなくなってしまうといった問題があった。
そこで、本発明の課題は、ヘッド本来の機能設計に加
え、ヘッド加工においても、質量調整しやすく、更に見
た目にも良好なゴルフクラブヘッドを提供することにあ
るHowever, recent metal hollow golf club heads have been increasing in size, and the thickness of the metal forming the outer shell of the crown portion 12 and the side portion 14 of the head has been reduced to 1.5 mm or less. Since the thickness of the head body is becoming thinner, the polishing step for adjusting the mass of the head main body also requires careful attention. Furthermore, in the case of a titanium alloy or the like, there is a problem that not only the specific gravity is small and the mass is not easily reduced, but also if the polishing is carried out in a hurry, the titanium alloy is hardened by being oxidized and cannot be polished.
Therefore, an object of the present invention is to provide a golf club head that is easy to adjust the mass and good in appearance in head processing in addition to the original function design of the head.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記課題につ
いて鑑み、解決するための手段について、下記の通り行
った。Means for Solving the Problems In view of the above problems, the present invention has been made as follows.
【０００５】錘部がヘッド本体に固定された金属製中空
ゴルフクラブヘッドにおいては、ヘッドを構成する複数
種の金属の中で最も小さな比重の金属でヘッド本体を形
成すると共に、前記錘部は、少なくとも最も比重の大き
い金属を用いた第１錘部と、ヘッド本体より比重の大き
い金属を用いた第２錘部とから構成し、第２錘部は、ソ
ール部に少なくとも一部が露出した状態で固定し、第２
錘部の露出した部分の表面積が少なくとも３６０ｍｍ2
以上露出してなるものである。[0005] In a hollow metal golf club head having a weight fixed to the head body, the head body is formed of a metal having the smallest specific gravity among a plurality of types of metals constituting the head, and the weight is formed by: At least a first weight portion using a metal having the highest specific gravity and a second weight portion using a metal having a higher specific gravity than the head body, and the second weight portion is at least partially exposed to the sole portion. And fix the second
The surface area of the exposed portion of the weight portion is at least 360 mm 2
This is what is exposed.
【０００６】上記記載のゴルフクラブヘッドにおいて
は、ヘッド本体のソール部を複数の面で構成し、第２錘
部の露出した部分が、ソール部の隣接する面に跨らない
様に、形成されているものである。In the golf club head described above, the sole portion of the head body is constituted by a plurality of surfaces, and the exposed portion of the second weight portion is formed so as not to straddle the adjacent surface of the sole portion. Is what it is.
【０００７】上記記載のゴルフクラブヘッドにおいて
は、ヘッド本体の比重が２．５以上５．０以下で形成さ
れ、第２錘部の比重が６．０以上２０．０以下であり、
第１錘部の比重が１０．０以上２０．０以下であるもの
である。In the golf club head described above, the specific gravity of the head body is formed in a range of 2.5 to 5.0, the specific gravity of the second weight portion is in a range of 6.0 to 20.0,
The specific gravity of the first weight portion is 10.0 or more and 20.0 or less.
【０００８】[0008]
【発明の実施の形態】本発明は、金属製中空ゴルフクラ
ブヘッドに関するもので、ヘッド本体１は、比重が２．
５以上５．０以下の小さな金属が好ましく、具体的に
は、アルミニウム合金、チタニウム合金等が良い。しか
し、ステンレスなどの鉄系合金などでも良い。本体は、
鋳造で作る方が作りやすく、より好ましい。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a hollow golf club head made of metal.
A small metal of 5 or more and 5.0 or less is preferable, and specifically, an aluminum alloy, a titanium alloy, or the like is preferable. However, an iron-based alloy such as stainless steel may be used. The body is
Casting is easier and more preferable.
【０００９】また、第２錘部に使用する金属は、ヘッド
本体より比重の大きい金属である必要があり、比重６.
０以上２０.０以下が好ましい。ヘッド本体１をアルミ
ニウム合金やチタニウム合金などで作った場合、ステン
レスなど、比重７．８程度の材料でも良いが、比重８．
２以上の黄銅などの銅合金や、鉛、亜鉛、錫、銀、金、
タングステン、タンタル及びその合金が良く、特に比重
７.０以上９.０以下のステンレスや黄銅等、耐候性や切
削性に優れ、安価で比較的に手に入り易い金属を用いる
ことが好ましい。The metal used for the second weight must be a metal having a specific gravity higher than that of the head body.
It is preferably from 0 to 20.0. When the head main body 1 is made of an aluminum alloy, a titanium alloy, or the like, a material having a specific gravity of about 7.8, such as stainless steel, may be used.
2 or more copper alloys such as brass, lead, zinc, tin, silver, gold,
Tungsten, tantalum and alloys thereof are good, and it is preferable to use a metal which is excellent in weather resistance and machinability, inexpensive and relatively easy to obtain, such as stainless steel and brass having a specific gravity of 7.0 or more and 9.0 or less.
【００１０】第１錘部４には、最も比重の大きい金属を
使用するため、ヘッドの機能設計に特に重要である。そ
のため、第１錘部４をソール部に固定し、低重心化した
り、ヘッド本体のバック部１８付近や、トウ側とヒール
側の左右両サイドに分散して固定することによりヘッド
の重心軸周りの慣性モーメントを上げることができ好ま
しい。特に第１錘部は、タングステン合金など比重が極
めて大きい比重１０以上、好ましくは１２以上の金属若
しくはその合金を１５ｇ以上５０ｇ以下の範囲で固定す
ることが好ましい。比重を２０以下としたのは、タング
ステンの比重が１９．３であり、比重を極端に大きくす
ると、体積が小さくなりすぎ、固定が難しくなるためで
ある。The first weight 4 is made of a metal having the highest specific gravity, and is therefore particularly important for the functional design of the head. Therefore, by fixing the first weight portion 4 to the sole portion to reduce the center of gravity, or by dispersing and fixing the portion near the back portion 18 of the head main body or on both the left and right sides on the toe side and the heel side, the center of gravity of the head is rotated. Is preferable because the moment of inertia can be increased. In particular, the first weight portion is preferably fixed to a metal having an extremely large specific gravity of 10 or more, preferably 12 or more, such as a tungsten alloy or an alloy thereof in a range of 15 g to 50 g. The specific gravity is set to 20 or less because the specific gravity of tungsten is 19.3, and when the specific gravity is extremely increased, the volume becomes too small and fixing becomes difficult.
【００１１】第２錘部６は、ヘッド本体の質量調整を目
的とするため、ヘッド本体１の表面に露出している必要
があり、露出する表面積は３６０ｍｍ2以上で、特に４
５０ｍｍ2以上６００ｍｍ2以下が最も良い。第２錘部の
表面に露出する表面積を３６０ｍｍ2以上としたのは、
あまり小さいと、質量調整し難くなり、表面に露出する
表面積を６００ｍｍ2以下にしたのは、大きすぎて、殆
どソール部全部を覆うとヘッド本体の質量調整の機能を
充分に果たせなくなってしまうためである。The second weight 6 must be exposed on the surface of the head main body 1 for the purpose of adjusting the mass of the head main body, and the exposed surface area is not less than 360 mm 2 , especially 4 mm.
The best range is from 50 mm 2 to 600 mm 2 . The reason that the surface area exposed on the surface of the second weight portion is 360 mm 2 or more is as follows.
If it is too small, it will be difficult to adjust the mass, and the surface area exposed to the surface is set to 600 mm 2 or less, because it is too large and if it covers almost the entire sole part, it will not be able to perform the function of adjusting the mass of the head body sufficiently It is.
【００１２】第２錘部６に用いる金属は、板状の形状が
好ましく、ヘッド本体のソール部に板状の第２錘部の形
状に嵌合する様に凹部が形成され、ヘッド本体と第２錘
部が略面一になっている方が好ましい。第２錘部の厚さ
は、０．３ｍｍ以上１．５ｍｍ以下、好ましくは０．５
ｍｍ以上１．０ｍｍ以下が好ましい。あまり板厚が薄い
とヘッド質量調整の研磨時に、作業者が神経を使うた
め、薄すぎるのは、好ましくなく、厚すぎると、表面を
露出する面積が少なくなり、質量調整の効果が薄れる。
板状の錘部は、鋳込み、圧入、かしめ、ビス止めなど、
ヘッドに固定出来れば何でも良い。The metal used for the second weight 6 is preferably in the form of a plate. A recess is formed in the sole of the head body so as to fit the shape of the second weight in the form of a plate. It is preferable that the two weight portions are substantially flush. The thickness of the second weight portion is 0.3 mm or more and 1.5 mm or less, preferably 0.5 mm or more.
mm or more and 1.0 mm or less are preferable. If the plate thickness is too small, the operator uses nerves when polishing the head mass adjustment. Therefore, it is not preferable that the plate thickness is too small. If the plate thickness is too large, the area where the surface is exposed is reduced, and the effect of mass adjustment is reduced.
The plate-shaped weight is cast, pressed, caulked, screwed, etc.
Anything can be used as long as it can be fixed to the head.
【００１３】第１錘部となる金属は、要求するヘッド機
能によって適宜形状や固定方法は、決められるので、ヘ
ッド外部に露出して固定されていても構わないし、ヘッ
ド本体に内包されていても、内壁部に固定されていても
良い。[0013] Since the shape of the metal to be the first weight portion and the fixing method are appropriately determined depending on the required head function, the metal may be exposed to the outside of the head and fixed, or may be included in the head body. , May be fixed to the inner wall.
【００１４】しかし、第１錘部となる金属は、ヘッド機
能を上げることを目的としており、質量は、１５ｇ未満
であると、あまり重心位置やヘッドの重心軸周りの慣性
モーメントなどの機能に影響を与えないので好ましくな
い。また、ドライバーなど、ヘッド本体の質量が２００
ｇ程度のものに５０ｇ以上もの錘を付けると、ヘッドの
形状を必要以上に小さくしなければならないなど影響が
出て、ヘッドの重心軸周りの慣性モーメントが小さくな
り好ましくないので、ヘッド全質量の２５％以下が好ま
しい。However, the metal serving as the first weight is intended to enhance the head function. If the mass is less than 15 g, the function such as the position of the center of gravity and the moment of inertia around the center of gravity of the head is not greatly affected. Is not preferred. In addition, the mass of the head body such as a driver is 200
If a weight of 50 g or more is attached to an object of about g, the head shape must be made unnecessarily small, and the effect is exerted. The moment of inertia around the center of gravity of the head becomes small, which is not preferable. It is preferably at most 25%.
【００１５】ヘッド本体のソール部２であるソール面の
形状は、トウからヒールに掛けて一様なラウンドが付い
ているだけの形状でも構わないが、ソール部が外側に椀
状張り出した様な形状でも構わない。The shape of the sole surface, which is the sole portion 2 of the head body, may be a shape having a uniform round shape from the toe to the heel. The shape may be acceptable.
【００１６】また、図２や図７の様に、ヘッド本体の長
さ方向のトウ２０側とヒール２２側若しくは、ヘッド本
体の幅方向のフェース部１６側とバック部１８側にそれ
ぞれ異なった面を持たせることによって、ソール部の面
を複数に分け、質量調整用の第２錘部をそのうちの１面
若しくは２面の各面内に露出させることにより、その面
を研磨することにより、質量の調整がしやすくする方が
好ましい。第２錘部をソール部の隣接した面に跨って配
置するよりも、各面で配置する方が、製造上、圧入やビ
ス固定し易く好ましい。As shown in FIGS. 2 and 7, different surfaces are provided on the toe 20 side and the heel 22 side in the longitudinal direction of the head main body, or on the face portion 16 side and the back portion 18 side in the width direction of the head main body. By dividing the surface of the sole portion into a plurality of portions and exposing the second weight portion for adjusting the mass in each of one or two of the surfaces, the surface is polished to obtain a mass. It is preferable to easily adjust the temperature. It is preferable to dispose the second weight portion on each surface, rather than straddling the adjacent surface of the sole portion, because press-fitting and screw fixing are easy in manufacturing.
【００１７】本発明は製造時に、一般に金属製中空ゴル
フクラブの場合、ヘッド本体の開口部を通常ソール部に
し、ソール部２を溶接によって固定するが、ヘッド本体
のフェース部を開口部として、フェース部に鍛造材など
を用い溶接若しくは、かしめ、圧入などにより固定して
作っても良い。According to the present invention, when manufacturing a hollow golf club generally made of metal, the opening of the head main body is usually made into a sole portion and the sole portion 2 is fixed by welding. The part may be fixed by welding, caulking, press-fitting or the like using a forged material or the like.
【００１８】本発明は、ドライバーなどのヘッドの大型
化に伴い、クラウン部やサイド部の肉厚を薄くして、大
型化を目指すため、ヘッド体積は、２５０ｃｃ以上３６
０ｃｃ以下が好ましく、特に２７０ｃｃ以上３２０ｃｃ
以下が好ましい。この時の、クラウン部１２及びサイド
部１４の肉厚は、０．５〜１．５ｍｍの範囲にあること
が好ましく、特に０．６〜１．０ｍｍ好ましく、更に好
ましくは、０．７〜０．８ｍｍが良い。ヘッド体積が２
５０ｃｃ未満であれば、特に薄肉化する必要も無く、３
６０ｃｃより大きければ、錘を装着するには、ヘッド質
量が重くなりすぎる可能性が有るためである。また、肉
厚を０．５ｍｍ未満にすると、クラウン部などをゴルフ
クラブ運搬時にアイアン型ゴルフクラブヘッドなどにぶ
つけて、凹みが生じ易く、肉厚を厚くすると、ヘッド体
積を大きくしにくくなるため、あまり好ましくない。According to the present invention, as the size of the head such as a driver is increased, the thickness of the crown portion and the side portions is reduced to increase the size.
0 cc or less is preferable, especially 270 cc or more and 320 cc
The following is preferred. At this time, the thickness of the crown portion 12 and the side portions 14 is preferably in the range of 0.5 to 1.5 mm, particularly preferably 0.6 to 1.0 mm, and more preferably 0.7 to 0 mm. 0.8 mm is good. Head volume is 2
If it is less than 50 cc, there is no particular need to reduce the thickness.
If it is larger than 60 cc, there is a possibility that the head mass becomes too heavy for mounting the weight. Further, if the thickness is less than 0.5 mm, the crown or the like is hit against an iron-type golf club head or the like at the time of transporting the golf club, and dents are likely to occur. Not very good.
【００１９】なお、本発明の目的を損なわない範囲で、
比重の異なる異種金属で構成された第３錘部、第４錘部
を用いても良い。It should be noted that, within a range not to impair the object of the present invention,
A third weight portion and a fourth weight portion made of dissimilar metals having different specific gravities may be used.
【００２０】[0020]
【実施例】図１から図５に本発明実施例を示した。本発
明の実施例のゴルフクラブヘッドは、ヘッド本体１をチ
タニウム合金（Ｔｉ―６Ａｌ−４Ｖ）を用いて作成し
た。ソール部２は、ヘッド本体長手方向のトウ２０側か
らヒール２２側に向かって稜線３０が２本出来るように
３個の面を有する様に作成した。前記ソール部のフェー
ス部１６に一番近い面には特に錘部は無く、ソール部の
フェース部側より２番目の面に予め、第２錘部が嵌合す
るように凹部を設け、厚さ０．５ｍｍのステンレス（Ｓ
ＵＳ６３０）で作成した第２錘部６を前記凹部に嵌合さ
せ，ビス１０を４本用いて固定した。この時、第２錘部
であるステンレスのソール部に露出した面積は、４８０
ｍｍ2であった。1 to 5 show an embodiment of the present invention. In the golf club head according to the embodiment of the present invention, the head main body 1 was manufactured using a titanium alloy (Ti-6Al-4V). The sole portion 2 was formed to have three surfaces so that two ridge lines 30 could be formed from the toe 20 side to the heel 22 side in the longitudinal direction of the head main body. There is no weight portion particularly on the surface of the sole portion closest to the face portion 16, and a concave portion is provided in advance on the second surface from the face portion side of the sole portion so that the second weight portion is fitted. 0.5mm stainless steel (S
The second weight portion 6 prepared in US630) was fitted into the recess, and was fixed using four screws 10. At this time, the area exposed to the stainless steel sole portion as the second weight portion is 480.
mm 2 .
【００２１】更に、フェース部から一番遠い面に露出す
るように比重１３のタングステンカッパー合金を第１錘
部４として使用した。この時、第１錘部４の質量は、２
２ｇであった。この第１錘部のタングステンカッパーを
圧入及びかしめにより固定を行った。Further, a tungsten copper alloy having a specific gravity of 13 was used as the first weight portion 4 so as to be exposed on the surface farthest from the face portion. At this time, the mass of the first weight 4 is 2
2 g. The tungsten weight of the first weight portion was fixed by press fitting and caulking.
【００２２】例えば比重４．５のチタニウム合金（Ｔｉ
―６Ａｌ−４Ｖ）のヘッド本体部を研磨して５ｇの質量
を調整しようとした場合１．１１ｃｍ3の研磨量が必要
なのに対して、第２錘部で使用した金属材料は、比重
７．８のＳＵＳ６３０ステンレスであるので、０．６４
ｃｍ3の研磨量で済み、実際に行った作業においても、
研磨加工工程の時間を短縮することが出来た。この様
に、研磨量が少なく済むということは、それだけ作業時
間も短縮出来、さらに高価な材料であるチタニウム合金
の無駄を省くことができた。For example, a titanium alloy having a specific gravity of 4.5 (Ti
In the case of polishing the head body portion of (-6Al-4V) to adjust the mass of 5 g, a polishing amount of 1.11 cm 3 is required, whereas the metal material used in the second weight portion has a specific gravity of 7.8. 0.64 because of SUS630 stainless steel
The polishing amount of cm 3 is enough.
The time required for the polishing process was shortened. As described above, the reduction in the amount of polishing required reduced the working time, and further reduced the waste of a titanium alloy, which is an expensive material.
【００２３】また、図６から図８では、比重の最も大き
い第１錘部をソール部のトウ側とヒール側に分けて固定
し、ヘッドの重心軸周りの慣性モーメントを大きくする
設計の別の実施例を示した。FIGS. 6 to 8 show another design in which the first weight portion having the largest specific gravity is divided and fixed to the toe side and the heel side of the sole portion to increase the moment of inertia around the center of gravity of the head. Examples have been shown.
【００２４】[0024]
【発明の効果】本発明は、ゴルフクラブヘッドの機能設
計が容易に行え、ヘッド本体の研磨工程においても、質
量調整がしやすく、時間の短縮でき、更に、見た目にも
良好なゴルフクラブヘッドを設計出来る優れた効果が有
る。According to the present invention, it is possible to easily design the function of a golf club head, to easily adjust the mass and to reduce the time in the polishing process of the head body, and to further improve the appearance of the golf club head. There is an excellent effect that can be designed.
【図１】この発明の実施例を示すゴルフクラブヘッドの
ヘッド本体正面図。FIG. 1 is a front view of a head body of a golf club head showing an embodiment of the present invention.
【図２】この発明の実施例を示すゴルフクラブヘッドの
ヘッド本体底面図。FIG. 2 is a bottom view of the head body of the golf club head according to the embodiment of the present invention.
【図３】この発明の実施例を示すゴルフクラブヘッドの
ヘッド本体をヒール側から見た時の側面図。FIG. 3 is a side view of the head body of the golf club head according to the embodiment of the present invention when viewed from the heel side.
【図４】この発明の実施例を示すゴルフクラブヘッドの
ヘッド本体のＡ−Ａ´断面図。FIG. 4 is a cross-sectional view of the head body of the golf club head, taken along the line AA ′, showing the embodiment of the present invention;
【図５】この発明の実施例を示すゴルフクラブヘッドの
ヘッド本体のＢ−Ｂ´断面図。FIG. 5 is a cross-sectional view of the head body of the golf club head taken along the line BB ′ showing the embodiment of the present invention.
【図６】別の実施例を示すゴルフクラブヘッドのヘッド
本体正面図。FIG. 6 is a front view of a head body of a golf club head showing another embodiment.
【図７】別の実施例を示すゴルフクラブヘッドのヘッド
本体底面図。FIG. 7 is a bottom view of a head body of a golf club head showing another embodiment.
【図８】別の実施例を示すゴルフクラブヘッドのヘッド
本体Ｃ−Ｃ´断面図。FIG. 8 is a cross-sectional view of a head body CC ′ of a golf club head showing another embodiment.
１．ヘッド本体 ２．ソール部 ４．第１錘部 ６. 第２錘部 １０．ビス １２．クラウン部 １３．クラウン部肉厚 １４．サイド部 １５．サイド部肉厚 １６．フェース部 １８．バック部 ２０．トウ ２２．ヒール ３０．稜線 1. Head body 2. Sole part 4. First weight part 6. Second weight part 10. Screw 12. Crown part 13. Crown wall thickness 14. Side part 15. Side wall thickness 16. Face part 18. Back part 20. Toe 22. Heel 30. Ridgeline
Claims (3)
ゴルフクラブヘッドにおいて、ヘッドを構成する複数種
の金属の中で最も小さな比重の金属でヘッド本体を形成
すると共に、前記錘部は、少なくとも最も比重の大きい
金属を用いた第１錘部と、ヘッド本体より比重の大きい
金属を用いた第２錘部とから構成し、第２錘部は、ソー
ル部に少なくとも一部が露出した状態で固定し、第２錘
部の露出した部分の表面積が少なくとも３６０ｍｍ2以
上露出してなることを特徴とするゴルフクラブヘッド。1. A hollow metal golf club head having a weight fixed to a head main body, wherein the head main body is formed of a metal having the smallest specific gravity among a plurality of metals constituting the head, and the weight is formed by At least a first weight portion using a metal having the largest specific gravity and a second weight portion using a metal having a higher specific gravity than the head body, and the second weight portion is at least partially exposed to the sole portion. A golf club head fixed in a state, wherein the exposed surface area of the second weight portion is at least 360 mm 2 or more.
ヘッド本体のソール部を複数の面で構成し、第２錘部の
露出した部分が、ソール部の隣接する面に跨らない様
に、形成されていることを特徴とするゴルフクラブヘッ
ド。2. The golf club head according to claim 1,
A golf club head, wherein a sole portion of the head body is constituted by a plurality of surfaces, and an exposed portion of the second weight portion is formed so as not to straddle an adjacent surface of the sole portion.
ドにおいて、ヘッド本体の比重が２．５以上５．０以下
で形成され、第２錘部の比重が６．０以上２０．０以下
であり、第１錘部の比重が１０．０以上２０．０以下で
あることを特徴とするゴルフクラブヘッド。3. The golf club head according to claim 1, wherein the specific gravity of the head body is formed in a range of 2.5 to 5.0, and the specific gravity of the second weight portion is set in a range of 6.0 to 20.0. Wherein the specific gravity of the first weight portion is 10.0 or more and 20.0 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000016449A JP2001204858A (en) | 2000-01-26 | 2000-01-26 | Golf club head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000016449A JP2001204858A (en) | 2000-01-26 | 2000-01-26 | Golf club head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001204858A true JP2001204858A (en) | 2001-07-31 |
Family
ID=18543580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000016449A Pending JP2001204858A (en) | 2000-01-26 | 2000-01-26 | Golf club head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001204858A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7445564B2 (en) | 2004-03-30 | 2008-11-04 | Daiwa Seiko, Inc. | Golf club head |
| JP2009540933A (en) * | 2006-06-22 | 2009-11-26 | ナイキ インコーポレーティッド | Golf club and golf club head |
| JP2010088807A (en) * | 2008-10-10 | 2010-04-22 | Globeride Inc | Golf club |
| US7749101B2 (en) | 2005-08-23 | 2010-07-06 | Bridgestone Sports Co., Ltd. | Wood-type golf club head |
| US20130040755A1 (en) * | 2008-12-18 | 2013-02-14 | Nike, Inc. | Golf Clubs and Golf Club Heads Having Interchangeable Rear Body Members |
| US10737149B2 (en) * | 2008-12-18 | 2020-08-11 | Karsten Manufacturing Corporation | Golf clubs and golf club heads having interchangeable rear body members |
-
2000
- 2000-01-26 JP JP2000016449A patent/JP2001204858A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7445564B2 (en) | 2004-03-30 | 2008-11-04 | Daiwa Seiko, Inc. | Golf club head |
| US7749101B2 (en) | 2005-08-23 | 2010-07-06 | Bridgestone Sports Co., Ltd. | Wood-type golf club head |
| JP2009540933A (en) * | 2006-06-22 | 2009-11-26 | ナイキ インコーポレーティッド | Golf club and golf club head |
| JP2010088807A (en) * | 2008-10-10 | 2010-04-22 | Globeride Inc | Golf club |
| US20130040755A1 (en) * | 2008-12-18 | 2013-02-14 | Nike, Inc. | Golf Clubs and Golf Club Heads Having Interchangeable Rear Body Members |
| US20150182821A1 (en) * | 2008-12-18 | 2015-07-02 | Nike, Inc. | Golf Clubs and Golf Club Heads Having Interchangeable Rear Body Members |
| US9072949B2 (en) * | 2008-12-18 | 2015-07-07 | Nike, Inc. | Golf clubs and golf club heads having interchangeable rear body members |
| US10322321B2 (en) * | 2008-12-18 | 2019-06-18 | Karsten Manufacturing Corporation | Golf clubs and golf club heads having interchangeable rear body members |
| US10737149B2 (en) * | 2008-12-18 | 2020-08-11 | Karsten Manufacturing Corporation | Golf clubs and golf club heads having interchangeable rear body members |
| US11167184B2 (en) | 2008-12-18 | 2021-11-09 | Karsten Manufacturing Corporation | Golf clubs and golf club heads having interchangeable rear body members |
| US20220062720A1 (en) * | 2008-12-18 | 2022-03-03 | Karsten Manufacturing Corporation | Golf Clubs and Golf Club Heads Having Interchangeable Rear Body Members |
| US11865415B2 (en) | 2008-12-18 | 2024-01-09 | Karsten Manufacturing Corporation | Golf clubs and golf club heads having interchangeable rear body members |
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