JP2001137396A - Golf club head - Google Patents
Golf club headInfo
- Publication number
- JP2001137396A JP2001137396A JP32301499A JP32301499A JP2001137396A JP 2001137396 A JP2001137396 A JP 2001137396A JP 32301499 A JP32301499 A JP 32301499A JP 32301499 A JP32301499 A JP 32301499A JP 2001137396 A JP2001137396 A JP 2001137396A
- Authority
- JP
- Japan
- Prior art keywords
- face
- head
- golf club
- center
- reinforcing member
- 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、フェース面の背面
に補強部材を有する中空の金属製外殻を有するゴルフク
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 golf club head having a hollow metal shell having a reinforcing member on the back of a face.
【０００２】[0002]
【従来の技術】従来技術としては、ゴルフボールを打っ
た時に、フェース部材がたわみ、塑性変形を起こす前に
フェース部材の背面側にフェース部材と同様の形状をし
た補強部材をあてがうことにより塑性変形を防ぎ、ゴル
フボールの初速を上げるようにしたものが知られてい
る。例えば、特開平１１−１１４１０５号公報に記載の
ものは、図１２に示すように、フェース部材１００の外
周部とバックアップ部材（補強部材）１０１の外周部と
を溶接により接合（溶接部を符号Ｗで示してある）して
フェースユニット２００を形成しておき、そのフェース
ユニット２００を、前端開放の胴体部１０２の開放口１
０３の口縁部１０４に嵌め込んで溶接したものである。
ここで、フェース部材１００とバックアップ部材１０１
との間隔Ｓは、打球時にフェース部材１００が背方へ反
り変形するときのそのフェース部材１００に固有の最大
反り変形幅よりも短い寸法に定められていることが望ま
しい、とされている。2. Description of the Related Art As a conventional technique, when a golf ball is hit, a face member is bent and a plastic member having the same shape as the face member is applied to the back side of the face member before plastic deformation occurs. There has been known a golf ball in which the initial speed of a golf ball is increased. For example, in Japanese Patent Application Laid-Open No. H11-114105, as shown in FIG. 12, an outer peripheral portion of a face member 100 and an outer peripheral portion of a backup member (reinforcing member) 101 are joined by welding (the welded portion is denoted by W The face unit 200 is formed in advance, and the face unit 200 is connected to the opening 1 of the body 102 with the front end open.
03 is welded by fitting into the rim 104.
Here, the face member 100 and the backup member 101
Is desirably set to a dimension shorter than the maximum warpage deformation width inherent to the face member 100 when the face member 100 warps and deforms when hitting a ball.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た従来技術では、単にフェース部材の背面に補強部材を
配したにとどまり、ヘッドの重心位置やヘッド体積、重
量を考慮してはいなかった。そのため、ヘッドスピード
の速いゴルファーにとっては、ボールの初速が上がり、
ヘッドの重心深さがフェース寄りにあるため、バックス
ピン量が減少することによって、適度なバックスピンと
なり、飛距離を伸ばすことが可能となったが、一般のゴ
ルファーは、打点がばらつき、ヘッドスピードも遅いた
め、飛距離を伸ばすことはむずかしかった。一般のゴル
ファーにとっては、ヘッド体積を大きくするとともに重
心を深くすることによって、ヘッドの重心軸周りの慣性
モーメントを大きくし、スイートエリアの拡大を図ると
ともに、重心を深くしバックスピン量を増やすことによ
って、ボールの揚力を高め、ボールを上がり易くし、ボ
ール初速を上げる効果と合わせて、飛距離を伸ばすこと
ができる。However, in the above-described prior art, the reinforcing member is simply provided on the back surface of the face member, and the position of the center of gravity, the head volume, and the weight of the head are not taken into consideration. Therefore, for a golfer with a fast head speed, the initial speed of the ball increases,
Since the center of gravity of the head is closer to the face, the backspin amount is reduced, resulting in an appropriate backspin and a longer flight distance.However, general golfers have varying hitting points and head speed. It was difficult to extend the flight distance because it was too slow. For general golfers, by increasing the head volume and deepening the center of gravity, the moment of inertia around the center of gravity axis of the head is increased, the sweet area is expanded, and the center of gravity is increased to increase the backspin amount. In addition to increasing the lift of the ball, making it easier to climb the ball, and increasing the initial velocity of the ball, the flight distance can be extended.
【０００４】そこで、本発明は、フェース面のボールの
反発を上げるとともに、一般のゴルファーでも飛距離を
伸ばすことのできるゴルフクラブヘッドを提供すること
を目的とする。Accordingly, an object of the present invention is to provide a golf club head capable of increasing the rebound of a ball on a face surface and extending the flight distance even for a general golfer.
【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、この発明は、ゴルフクラブのヘッド本体部にフェー
ス開口部を設け、このフェース開口部にフェース部材を
溶接によって固着する中空の金属製外殻を有するゴルフ
クラブヘッドにおいて、厚さ０．８〜２．５ｍｍの補強
部材の上下端の幅を１５〜４０ｍｍとし、これら上下端
のみをフェース部材に溶接し、フェース部材とヘッド本
体部とを溶接により固着してなるものである。SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a golf club head having a face opening in a head body, and a face member fixed to the face opening by welding. In the golf club head having the outer shell, the width of the upper and lower ends of the reinforcing member having a thickness of 0.8 to 2.5 mm is set to 15 to 40 mm, and only the upper and lower ends are welded to the face member, and the face member and the head main body are connected to each other. Is fixed by welding.
【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１に示す実施例において、ゴルフクラブ
のヘッド本体部１にフェース開口部２を設け、このフェ
ース開口部２にフェース部材３を溶接によって固着す
る。この溶接部を符号Ｍ1 で示す。フェース部材３の背
面には補強部材４を溶接してある。この補強部材４は、
厚さ０．８〜２．５ｍｍ、上下端４Ａ，４Ｂの夫々の幅
を１５〜４０ｍｍとし、これら上下端４Ａ，４Ｂのみを
フェース部材３の背面に当接し溶接してある。この補強
部材４とフェース部材３との溶接個所を符号Ｍ2で示
す。この補強部材４はフェース部材３のフェースセンタ
ーを含む位置に設けてある。In the embodiment shown in FIG. 1, a face opening 2 is provided in a head body 1 of a golf club, and a face member 3 is fixed to the face opening 2 by welding. Shows the welding portion by symbol M 1. The reinforcing member 4 is welded to the back surface of the face member 3. This reinforcing member 4
Each of the upper and lower ends 4A and 4B has a thickness of 0.8 to 2.5 mm and a width of 15 to 40 mm, and only the upper and lower ends 4A and 4B abut on the back surface of the face member 3 and are welded. Shows the welds between the reinforcing member 4 and the face member 3 by reference numeral M 2. The reinforcing member 4 is provided at a position including the face center of the face member 3.
【０００８】前記補強部材４の中心部の幅Ｌは２０ｍｍ
程度とした。この中心部の幅Ｌが１５ｍｍ未満とする
と、細くなりすぎて補強効果が少なくなり、フェース部
材３の強度を持たせるためにフェース部材３の厚みを厚
くする必要が生ずる。また、フェース部材３の厚みを厚
くしてしまうと、反発性能が上がらなくなる恐れがあ
る。なおまた、中心部の幅Ｌを４０ｍｍ以上とした場合
には、補強部材４の質量及びそれを溶接する質量が付加
され、重心位置がフェース寄りになり、一般ゴルファー
にとってはヘッドの重心軸周りの慣性モーメントが小さ
くなったり、コントロールしにくいクラブとなってしま
う恐れがある。また、補強部材４の厚さを薄くしすぎる
と、補強効果が少なくなり、また溶接が難しくなる。反
対に補強部材４の厚さを厚くしすぎると、重心位置がフ
ェース寄りになり好ましくない。したがって、補強部材
４は幅１５〜４０ｍｍ、好ましくは２０〜３０ｍｍ、厚
さ０．８〜２．５ｍｍ、好ましくは１．２〜２．０ｍｍ
とする。前記フェース部材３の厚さは、少なくともフェ
ースセンター付近で１．０〜２．５ｍｍ、特に１．５〜
２．０ｍｍが好ましく、このフェースセンター付近が一
番薄く形成されていることが好ましい。このフェース部
材３は、鋳造で形成してもよいが、鍛造材や圧延材を用
いた方が好ましい。The width L at the center of the reinforcing member 4 is 20 mm.
Degree. If the width L of the central portion is less than 15 mm, it becomes too thin and the reinforcing effect is reduced, and it is necessary to increase the thickness of the face member 3 in order to impart strength to the face member 3. Also, if the thickness of the face member 3 is increased, the resilience performance may not be improved. In addition, when the width L of the center portion is set to 40 mm or more, the mass of the reinforcing member 4 and the mass for welding the reinforcing member 4 are added, the center of gravity becomes closer to the face, and for a general golfer, around the center of gravity of the head. There is a risk that the moment of inertia will be small and the club will be difficult to control. On the other hand, if the thickness of the reinforcing member 4 is too thin, the reinforcing effect is reduced, and welding becomes difficult. On the other hand, if the thickness of the reinforcing member 4 is too large, the position of the center of gravity is close to the face, which is not preferable. Therefore, the reinforcing member 4 has a width of 15 to 40 mm, preferably 20 to 30 mm, a thickness of 0.8 to 2.5 mm, and preferably 1.2 to 2.0 mm.
And The thickness of the face member 3 is at least 1.0 to 2.5 mm near the face center, particularly 1.5 to 2.5 mm.
It is preferably 2.0 mm, and the face center is preferably formed to be thinnest. The face member 3 may be formed by casting, but it is preferable to use a forged material or a rolled material.
【０００９】図２は補強部材４を示す正面図であり、上
端４Ａ及び下端４Ｂの幅を３０ｍｍ、中心部の幅Ｌを２
０ｍｍ、高さ（上下方向の幅）Ｈを４０ｍｍとしたもの
を示す。FIG. 2 is a front view showing the reinforcing member 4. The width of the upper end 4A and the lower end 4B is 30 mm, and the width L of the center is 2 mm.
0 mm and a height (width in the vertical direction) H of 40 mm are shown.
【００１０】図３は、フェース開口部２の周囲の縁部２
Ａの内側寄りの上下複数個所に脱落防止ストッパー５を
形成したものを示す。この図３の実施例では縁部２Ａに
一体的にこのストッパー５を形成した。補強部材４をフ
ェース部材３の背面全体に使用せずに部分的に用いるた
めに、その分重量が減少し、減少分を錘６としてソール
部に固定することができる。この錘６はヘッドサイド部
に設けてもよい。また、錘６はヘッド本体部１と同じ材
料や同質の材料でもよいが、ステンレス、銅合金、タン
グステン合金など比重の大きな材料を使用してもよく、
溶接、圧入、加締めなどの手段によりしっかり固定する
ようにする。また、重心位置を深くかつ低くするために
は、錘６の質量を１０〜３０ｇでソール部のバック側に
配置することが好ましい。錘６を軽くしすぎると、重心
の位置があまり変化せず、あまり重くするとヘッド本体
部１の重量の関係から体積を小さくしなくてはならなく
なる。図４では、フェース開口部２の裏側に脱落防止ス
トッパー５を別部材で形成しておき、これを溶接するこ
とにより設けた。この脱落防止ストッパー５は、補強部
材４に重ならない位置に設けられる。特に補強部材４の
左右両端に近接した位置に上下それぞれ脱落防止ストッ
パー５を設けることが好ましい。FIG. 3 shows an edge 2 around the face opening 2.
The figure shows that stoppers 5 are formed at a plurality of upper and lower positions near the inside of A. In the embodiment of FIG. 3, the stopper 5 is formed integrally with the edge 2A. Since the reinforcing member 4 is partially used without being used on the entire back surface of the face member 3, the weight is reduced accordingly, and the reduced amount can be fixed to the sole portion as the weight 6. This weight 6 may be provided on the head side portion. The weight 6 may be made of the same material or the same material as the head body 1, but may be made of a material having a large specific gravity, such as stainless steel, a copper alloy, or a tungsten alloy.
Secure them securely by welding, press fitting, caulking or other means. Further, in order to make the position of the center of gravity deep and low, it is preferable that the mass of the weight 6 is set at 10 to 30 g on the back side of the sole portion. If the weight 6 is too light, the position of the center of gravity does not change much. If the weight 6 is too heavy, the volume must be reduced due to the weight of the head main body 1. In FIG. 4, a stopper 5 for preventing falling off is formed on the back side of the face opening 2 by a separate member and provided by welding. The stopper 5 is provided at a position where the stopper 5 does not overlap the reinforcing member 4. Particularly, it is preferable to provide the stoppers 5 for preventing the falling off from the upper and lower portions at positions near the left and right ends of the reinforcing member 4 respectively.
【００１１】上述した補強部材４は、正方形や長方形で
あってもよく、上述したものとは反対に中心部の幅Ｌを
上下端４Ａ，４Ｂの幅よりも広くした図５に示すような
形状であってもよい。また、ソール側に近い部分を広く
した台形型や、フェース部材３の最も変形する部分のみ
補強するように上下端４Ａ，４Ｂに比べ狭くしてもよ
い。また、補強部材４は、単に平板ではなく、ロールや
バルジ等のラウンドを付けるようにしてもよい。また、
台形型にすることによって低重心化が図れるためこのよ
うな形状にすることも好ましい。上述の補強部材４のよ
うに、中心部の幅Ｌを狭くすることにより、固着する幅
すなわち上下端４Ａ，４Ｂの幅（溶接幅）を保持しなが
ら補強部材４の軽量化を図ることができる。The above-mentioned reinforcing member 4 may be a square or a rectangle. Contrary to the above, the width L at the center is larger than the width of the upper and lower ends 4A and 4B, as shown in FIG. It may be. Further, a trapezoidal shape in which a portion near the sole side is widened, or a narrower shape than the upper and lower ends 4A and 4B may be used so as to reinforce only the most deformable portion of the face member 3. Further, the reinforcing member 4 may be provided with a round shape such as a roll or a bulge instead of a flat plate. Also,
Such a shape is also preferable because a trapezoidal shape can reduce the center of gravity. By reducing the width L of the central portion as in the above-described reinforcing member 4, the weight of the reinforcing member 4 can be reduced while maintaining the fixed width, that is, the width of the upper and lower ends 4A and 4B (welding width). .
【００１２】図６は、図１に示す補強部材４を裏面に溶
接したフェース部材３をフェース開口部２に溶接した状
態の断面を示す。フェース部材３の上下方向の幅よりも
補強部材４の上下方向の幅（高さＨ）を短くしてある。FIG. 6 shows a cross section of the face member 3 in which the reinforcing member 4 shown in FIG. The vertical width (height H) of the reinforcing member 4 is shorter than the vertical width of the face member 3.
【００１３】図７及び図８に示す実施例では、補強部材
４の高さＨをフェース部材３の上下方向の幅よりも高く
し、フェース部材３の上下端を補強部材４に溶接してい
る。In the embodiment shown in FIGS. 7 and 8, the height H of the reinforcing member 4 is made larger than the vertical width of the face member 3, and the upper and lower ends of the face member 3 are welded to the reinforcing member 4. .
【００１４】図９はバルジの説明図、図１０はロールの
説明図である。バルジは、正式にはホリゾンタル・フェ
ース・バルジといい、フェース面についたヨコ方向の丸
みをいう。ロールはフェース面についたタテ方向の丸み
をいい、バーチカル・フェース・ロールという。FIG. 9 is an explanatory view of a bulge, and FIG. 10 is an explanatory view of a roll. The bulge is formally called a horizontal face bulge and refers to the horizontal roundness of the face. The roll refers to the vertical roundness on the face, and is called a vertical face roll.
【００１５】図１１は、重心深さと重心高さとを説明す
る図である。FIG. 11 is a diagram for explaining the center of gravity depth and the center of gravity height.
【００１６】ヘッド本体部１のフェース開口部２にフェ
ース部材３を嵌合したとき、フェース部材３の背面は脱
落防止ストッパー５に当接し、縁部２Ａの表面とフェー
ス部材３の打球面とがほぼ同一面上に位置するようにな
ることが好ましい。フェース部材３にはスコアラインと
言われる溝部を複数本配置してあり、フェース部材３と
ヘッド本体部１とを溶接により固着した際にできるビー
ドを研磨し、フェース部材３と前記縁部２Ａとの段差を
なくすように仕上げる。そのため、フェース部材３と縁
部２Ａに段差があると溝部（スコアライン）を削ってし
まう恐れがあるためである。When the face member 3 is fitted into the face opening 2 of the head body 1, the back surface of the face member 3 comes into contact with the stopper 5 so that the surface of the edge 2A and the striking surface of the face member 3 are separated. It is preferable that they are located on substantially the same plane. The face member 3 is provided with a plurality of grooves called score lines, and a bead formed when the face member 3 and the head main body 1 are fixed to each other by welding is polished, and the face member 3 and the edge 2A are formed. Finish to eliminate the step. Therefore, if there is a step between the face member 3 and the edge 2A, the groove (score line) may be cut.
【００１７】この発明のゴルフクラブヘッドにおいて
は、特にドライバーの飛距離の増大を目的としている。
ドライバーと言われるクラブ長さ１０９０〜１２７０ｍ
ｍ（４３〜５０インチ）のゴルフクラブをスイングした
ときに、ヘッドスピードが上がることが好ましい。ロフ
ト角が７〜１４°とフェース角が最も立っている角度の
方がボールの反発が上がり、打ち出されたボールの初速
が速くなるために好ましい。このとき、ヘッドはできる
限り大きくしたいが、ヘッド重量をあまり重くするとス
イングできなくなり、軽くするためにはヘッドの肉厚を
薄くしなければならず、肉厚を薄くしすぎるとゴルフク
ラブ運搬時などにアイアンヘッドと衝突してへこんでし
まう恐れがあるため、ヘッド体積が２５０〜３５０ｃｍ
3 、特に好ましくは２８０〜３２０ｃｍ3 、ヘッド質量
が１８０〜２００ｇの範囲にあることが好ましい。重心
深さは、深い方がよく、ボールにバックスピンを与え、
適度にボールに揚力を与えるために、２６ｍｍ以上が好
ましく、特に３０ｍｍ以上が好ましい。ヘッド体積から
重心深さは３５ｍｍが通常のウッド型ゴルフクラブの形
状としては限界であると考え、重心深さが２６〜３５ｍ
ｍ、特に３０〜３５ｍｍにあることが好ましい。このよ
うに体積が大きく、軽量化を図ったゴルフクラブヘッド
を形成するには、比重５以下の材料で形成することが好
ましく、特にアルミニウム合金、マグネシウム合金、チ
タニウム合金などが好適である。The golf club head of the present invention aims at increasing the flight distance of the driver.
The club is said to be a driver.
When a golf club of m (43 to 50 inches) is swung, the head speed is preferably increased. The angle at which the face angle is the most steep, such as a loft angle of 7 to 14 °, is preferable because the rebound of the ball increases and the initial velocity of the hit ball increases. At this time, we want the head to be as large as possible.However, if the head weight is too heavy, it will not be possible to swing. The head volume is 250-350cm because it may collide with the iron head
3 , particularly preferably 280 to 320 cm 3 , and the mass of the head is preferably in the range of 180 to 200 g. The deeper the center of gravity, the deeper it is, giving backspin to the ball,
In order to appropriately provide a lift to the ball, it is preferably 26 mm or more, particularly preferably 30 mm or more. From the volume of the head, the depth of the center of gravity is considered to be 35 mm as the limit of the shape of a normal wood type golf club, and the depth of the center of gravity is 26 to 35 m.
m, particularly preferably 30 to 35 mm. In order to form a golf club head having such a large volume and light weight, it is preferable to form the golf club head with a material having a specific gravity of 5 or less, and particularly, an aluminum alloy, a magnesium alloy, a titanium alloy or the like is suitable.
【００１８】次いで、本発明の製造例（実施例）につい
て説明する。まず、ヘッド本体部１をチタニウム合金で
あるＴｉ−６Ａｌ−４Ｖを用いて鋳造で製造した。ヘッ
ド本体部１のフェース部にのみ開口部２を設けた。この
開口部２は、フェース部材３を嵌合するためとインベス
トメント鋳造したときにワックス型からヘッド本体部１
内の中空部を形成させる空間を作るための中子を取り出
すようにしてある。この開口部２からフェースの中心方
向に向かって脱落防止ストッパー５を上方に４０ｍｍの
間隔を開けて２つ、下方に４０ｍｍの間隔を開けて２つ
延出形成した。フェース部材３は、ヘッド本体部１と別
体にて作られ、チタニウム合金の圧延材であるＳＰ７０
０を所望の形状に打ち抜き、プレス成形にてロール及び
バルジのラウンドを形成した。また、この背面に補強部
材４をフェース部材３と同材料であるＳＰ７００を用
い、同様に所望の形状に打ち抜き、プレス成形にてロー
ル及びバルジのフェース部材３より少ないラウンドを形
成した。フェース部材３の背面に、ほぼ左右の中心位置
にこの補強部材３を配置し、アルゴンガス雰囲気中でア
ーク溶接にてその上下端４Ａ，４Ｂのみを固着した。ま
た、この補強部材４の上下端４Ａ，４Ｂ夫々の幅を３０
ｍｍとし、中心部の幅Ｌを２０ｍｍとした。このように
して補強部材４を固着したフェース部材３をヘッド本体
部１のフェース開口部２を取り囲む縁部２Ａと同一面に
なるように嵌合させ、このときに脱落防止ストッパー５
を複数個設け、フェース部材３及び補強部材４の背面に
当接するようにした。ヘッド本体部１に嵌合させたフェ
ース部材３をアルゴン雰囲気中においてアーク溶接によ
って固着し、溶接部分に盛り上がったビード部を研磨に
より平坦にしたのち、ヘッド全体の表面を軽く研磨し、
塗装を行い仕上げた。このときのヘッド重量は１９４ｇ
であった。このようにして製造した本発明の実施例とヘ
ッド体積及び重量を同じにしたゴルフクラブヘッドとを
比較した結果を次の表１に示す。Next, production examples (examples) of the present invention will be described. First, the head body 1 was manufactured by casting using Ti-6Al-4V which is a titanium alloy. The opening 2 was provided only in the face of the head main body 1. The opening 2 is used to fit the face member 3 and to make the head body 1 from a wax mold when investment casting is performed.
The core is taken out to create a space to form a hollow inside. Two drop-prevention stoppers 5 were formed extending from the opening 2 toward the center of the face at an interval of 40 mm upward and two at a distance of 40 mm downward. The face member 3 is formed separately from the head main body 1 and is made of a rolled titanium alloy SP70.
0 was punched into a desired shape, and a roll and a bulge round were formed by press molding. Also, on the back surface, the reinforcing member 4 was formed of the same material as that of the face member 3 by using SP700, similarly punched out into a desired shape, and formed by pressing and forming fewer rounds than the roll and bulge face members 3. The reinforcing member 3 was arranged at the center of the right and left sides of the back surface of the face member 3, and only the upper and lower ends 4A and 4B were fixed by arc welding in an argon gas atmosphere. The width of each of the upper and lower ends 4A, 4B of the reinforcing member 4 is set to 30
mm, and the width L at the center was 20 mm. The face member 3 to which the reinforcing member 4 is fixed in this manner is fitted so as to be flush with the edge 2A surrounding the face opening 2 of the head main body 1, and at this time, the stopper 5
Are provided so as to come into contact with the back surfaces of the face member 3 and the reinforcing member 4. The face member 3 fitted to the head main body 1 is fixed by arc welding in an argon atmosphere, and the bead portion raised on the welded portion is flattened by polishing, and then the entire surface of the head is lightly polished,
Painted and finished. The head weight at this time is 194g
Met. Table 1 below shows the results of a comparison between the golf club head of the present invention manufactured as described above and a golf club head having the same head volume and weight.
【００１９】[0019]
【表１】 [Table 1]
【００２０】表１中の比較例１は単純にフェース部材の
背面にフェース部材とほぼ同形状の補強部材を溶接固定
したヘッドであり、比較例２は、一般的なチタニウム合
金ヘッドである。上述したゴルフクラブヘッドをクラブ
長さ４５インチのゴルフクラブに組立て、試打評価を行
った。その結果を表２及び表３に示す。なお、表中の
「補強部材」の数値は厚みであり、比較例１の補強部材
もＳＰ７００を用いた。Comparative Example 1 in Table 1 is a head in which a reinforcing member having substantially the same shape as the face member is simply fixed by welding to the back surface of the face member, and Comparative Example 2 is a general titanium alloy head. The golf club head described above was assembled into a golf club having a club length of 45 inches, and a test hit evaluation was performed. The results are shown in Tables 2 and 3. In addition, the numerical value of the "reinforcement member" in the table is the thickness, and the reinforcement member of Comparative Example 1 also used SP700.
【００２１】[0021]
【表２】 [Table 2]
【００２２】[0022]
【表３】 [Table 3]
【００２３】上記表２の結果より、実施例のものは、補
強部材をフェース部材の背面のほぼ全域に溶接したゴル
フクラブヘッドすなわち比較例１に比べ、重心の位置を
深くかつ低く設定できたので、ボールのバックスピン量
を増やすことができた。また、一般的なチタニウム合金
のヘッドと外見や表１に示した機能には差がないにも係
わらず、本発明の実施例ではボールの初速を上げること
ができた。その結果、比較例１及び２のゴルフクラブに
比べ飛距離を伸ばすことができた。また、表３の結果に
より特にオフセンターヒットのときに効果が高く、飛距
離に大きな差を得ることができた。すなわち、フェース
センターで打撃したときの飛距離に対してオフセンター
ヒット時も飛距離減少が少なかった。同様にヒール側に
フェースセンターより１５ｍｍの位置でボールを打撃し
たときも表３に近い結果を得ることができた。From the results shown in Table 2, the center of gravity of the embodiment of the present invention can be set deeper and lower than that of the golf club head in which the reinforcing member is welded to almost the entire back surface of the face member, that is, Comparative Example 1. As a result, the backspin amount of the ball could be increased. In addition, the initial velocity of the ball could be increased in the embodiment of the present invention, although there was no difference between the head of the general titanium alloy and the appearance and the function shown in Table 1. As a result, the flight distance could be increased as compared with the golf clubs of Comparative Examples 1 and 2. In addition, according to the results shown in Table 3, the effect was particularly high in the case of an off-center hit, and a great difference was obtained in the flight distance. In other words, the off-center hit showed a small decrease in flight distance relative to the flight distance when hit with the face center. Similarly, when the ball was hit on the heel side at a position 15 mm from the face center, a result close to Table 3 could be obtained.
【００２４】[0024]
【発明の効果】以上説明したように、この発明によれ
ば、厚さ０．８〜２．５ｍｍの補強部材の上下端の幅を
１５〜４０ｍｍとし、これら上下端のみをフェース部材
の背面に溶接し、フェース部材とヘッド本体部とを溶接
により固着してなるので、補強部材の幅を限定したこと
により、溶接によるビードも少なくすることができ、重
心高さも２５ｍｍ以下に抑えることができ、非力なゴル
ファーにとってもボールが上がり易くなる。また、この
発明ではフェース全面に補強部材を使用しないので、ヘ
ッド重量に余裕ができ、ソール部やヘッドサイド部に錘
を固定することにより、重心をさらに深くかつ低くする
ことができる。このように、本発明によれば、ヘッド体
積を大きくすることができるとともに、重心を深くする
こともでき、ヘッドの重心軸周りの慣性モーメントを大
きくし、スイートエリアの拡大を図るとともに、重心を
深くしバックスピン量を増やすことによってボールの揚
力を高め、ボールを上がり易くし、ボール初速を上げる
効果と合わせて飛距離の向上を図ることができる。ま
た、フェース面のボールの反発を上げるとともに、一般
のゴルファーでも飛距離を伸ばすことができるようにな
る。また、フェースセンターからずれてオフセンターで
打撃したときでも通常のゴルフクラブヘッドに比べて飛
距離の減少が少ない。As described above, according to the present invention, the width of the upper and lower ends of the reinforcing member having a thickness of 0.8 to 2.5 mm is set to 15 to 40 mm, and only these upper and lower ends are provided on the back surface of the face member. Since the face member and the head body are fixed by welding, the bead by welding can be reduced by limiting the width of the reinforcing member, and the height of the center of gravity can be suppressed to 25 mm or less, Even a weak golfer can easily lift the ball. Further, in the present invention, since the reinforcing member is not used on the entire face, a head weight is allowed, and by fixing the weight to the sole portion and the head side portion, the center of gravity can be made deeper and lower. As described above, according to the present invention, the head volume can be increased, and the center of gravity can be deepened, the moment of inertia around the center axis of the head can be increased, the sweet area can be expanded, and the center of gravity can be increased. By increasing the depth and increasing the backspin amount, the lift of the ball can be increased, the ball can be easily lifted, and the flying distance can be improved in combination with the effect of increasing the initial velocity of the ball. In addition, the rebound of the ball on the face surface is increased, and a general golfer can also increase the flight distance. Further, even when the golf club head is hit off center off the face center, the flight distance is less reduced as compared with a normal golf club head.
【図１】この発明の好適な実施例を示すヘッド内部から
フェース面側を見た断面図。FIG. 1 is a cross-sectional view of a head according to a preferred embodiment of the present invention, as viewed from the face side from inside a head.
【図２】補強部材の正面図。FIG. 2 is a front view of a reinforcing member.
【図３】ヘッド本体部の断面図。FIG. 3 is a sectional view of a head main body.
【図４】脱落防止ストッパーを示すヘッド本体内部から
フェース面側を見た断面図。FIG. 4 is a cross-sectional view showing the face side from the inside of the head main body, showing a stopper for preventing falling off;
【図５】補強部材の他の例を示す正面図。FIG. 5 is a front view showing another example of the reinforcing member.
【図６】フェース部材をヘッド本体に溶接した状態の断
面図。FIG. 6 is a sectional view showing a state where the face member is welded to the head main body.
【図７】背面に補強部材を溶接したフェース部材の正面
図。FIG. 7 is a front view of a face member with a reinforcing member welded to the back surface.
【図８】図７のフェース部材をヘッド本体部に溶接した
状態の断面図。FIG. 8 is a cross-sectional view showing a state where the face member of FIG. 7 is welded to the head main body.
【図９】バルジの説明図。FIG. 9 is an explanatory diagram of a bulge.
【図１０】ロールの説明図。FIG. 10 is an explanatory diagram of a roll.
【図１１】重心高さと重心深さとを説明する図。FIG. 11 is a view for explaining a center of gravity height and a center of gravity depth.
【図１２】従来例を示す断面図。FIG. 12 is a sectional view showing a conventional example.
１ ヘッド本体部 ２ フェース開口部 ３ フェース部材 ４ 補強部材 DESCRIPTION OF SYMBOLS 1 Head main body part 2 Face opening part 3 Face member 4 Reinforcement member
Claims (4)
開口部を設け、このフェース開口部にフェース部材を溶
接によって固着する中空の金属製外殻を有するゴルフク
ラブヘッドにおいて、 厚さ０．８〜２．５ｍｍの補強部材の上下端の幅を１５
〜４０ｍｍとし、これら上下端のみをフェース部材に溶
接し、 フェース部材とヘッド本体部とを溶接により固着してな
ることを特徴とするゴルフクラブヘッド。1. A golf club head having a hollow metal outer shell provided with a face opening in a head main body of a golf club and a face member fixed to the face opening by welding. The width of the upper and lower ends of the reinforcing member of .5 mm is 15
A golf club head characterized in that only the upper and lower ends are welded to a face member, and the face member and the head body are fixed to each other by welding.
て、前記ヘッド本体のフェース開口部にフェース部材を
固着する際、補強部材もしくはフェース部材、もしくは
その両方に脱落防止ストッパーが当接するように複数個
設けら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, wherein when the face member is fixed to the face opening of the head body, a plurality of stoppers are provided so as to abut against the reinforcing member and / or the face member. A golf club head characterized in that:
ヘッドにおいて、補強部材の上下端の幅より中心部の幅
が狭い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 width of the central portion is smaller than the width of the upper and lower ends of the reinforcing member.
ヘッドにおいて、ヘッド体積が２５０〜３５０ｃｍ3 、
ヘッド質量が１８０〜２００ｇ、重心深さが２６〜３５
ｍｍであり、重心高さが２５ｍｍ以下であり、かつ、ヘ
ッド本体の比重が５以下の金属であることを特徴とする
ゴルフクラブヘッド。4. The golf club head according to claim 1, wherein the head volume is 250 to 350 cm 3 ,
Head mass 180-200g, center of gravity depth 26-35
mm, the center of gravity height is 25 mm or less, and the specific gravity of the head body is a metal of 5 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32301499A JP2001137396A (en) | 1999-11-12 | 1999-11-12 | Golf club head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32301499A JP2001137396A (en) | 1999-11-12 | 1999-11-12 | Golf club head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001137396A true JP2001137396A (en) | 2001-05-22 |
Family
ID=18150174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32301499A Pending JP2001137396A (en) | 1999-11-12 | 1999-11-12 | Golf club head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001137396A (en) |
Cited By (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002360746A (en) * | 2001-06-07 | 2002-12-17 | Sumitomo Rubber Ind Ltd | Golf club |
| JP2007330579A (en) * | 2006-06-16 | 2007-12-27 | Yokohama Rubber Co Ltd:The | Golf club head and golf club |
| JP2008099903A (en) * | 2006-10-19 | 2008-05-01 | Sri Sports Ltd | Wood type golf club head |
| JP2008154674A (en) * | 2006-12-21 | 2008-07-10 | Bridgestone Sports Co Ltd | Wood club head |
| JP2009077906A (en) * | 2007-09-26 | 2009-04-16 | Bridgestone Sports Co Ltd | Golf club head |
| US7686706B2 (en) | 2007-04-20 | 2010-03-30 | Bridgestone Sports Co., Ltd. | Golf club head |
| JP2010104473A (en) * | 2008-10-29 | 2010-05-13 | Bridgestone Sports Co Ltd | Golf club head |
| US7798916B2 (en) | 2007-03-05 | 2010-09-21 | Bridgestone Sports Co., Ltd | Golf club head |
| US7819758B2 (en) | 2008-03-26 | 2010-10-26 | Bridgestone Sports Co., Ltd. | Golf club head |
| US7819757B2 (en) * | 2006-07-21 | 2010-10-26 | Cobra Golf, Inc. | Multi-material golf club head |
| US7883431B2 (en) | 2006-10-13 | 2011-02-08 | Bridgestone Sports Co., Ltd | Golf club head |
| US7914396B2 (en) | 2004-12-13 | 2011-03-29 | Bridgestone Sports Co., Ltd. | Golf club head |
| US7942759B2 (en) | 2006-12-12 | 2011-05-17 | Bridgestone Sports Co., Ltd. | Golf club head |
| US20120135821A1 (en) * | 2010-11-30 | 2012-05-31 | Nike, Inc. | Golf Club Heads Or Other Ball Striking Devices Having Distributed Impact Response |
| US8376879B2 (en) | 2009-11-10 | 2013-02-19 | Bridgestone Sports Co., Ltd. | Golf club head |
| US8870682B2 (en) | 2006-07-21 | 2014-10-28 | Cobra Golf Incorporated | Multi-material golf club head |
| US20150165280A1 (en) * | 2013-12-18 | 2015-06-18 | Acushnet Compnay | Golf club head |
| US9101808B2 (en) | 2011-01-27 | 2015-08-11 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9149693B2 (en) | 2009-01-20 | 2015-10-06 | Nike, Inc. | Golf club and golf club head structures |
| US9168435B1 (en) | 2014-06-20 | 2015-10-27 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9186546B2 (en) | 2011-04-28 | 2015-11-17 | Nike, Inc. | Golf clubs and golf club heads |
| US9192831B2 (en) | 2009-01-20 | 2015-11-24 | Nike, Inc. | Golf club and golf club head structures |
| JP5848839B1 (en) * | 2015-06-03 | 2016-01-27 | ダンロップスポーツ株式会社 | Golf club head |
| US9278265B2 (en) | 2009-07-24 | 2016-03-08 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9375624B2 (en) | 2011-04-28 | 2016-06-28 | Nike, Inc. | Golf clubs and golf club heads |
| US9409076B2 (en) | 2011-04-28 | 2016-08-09 | Nike, Inc. | Golf clubs and golf club heads |
| US9409073B2 (en) | 2011-04-28 | 2016-08-09 | Nike, Inc. | Golf clubs and golf club heads |
| US9433834B2 (en) | 2009-01-20 | 2016-09-06 | Nike, Inc. | Golf club and golf club head structures |
| US9433845B2 (en) | 2011-04-28 | 2016-09-06 | Nike, Inc. | Golf clubs and golf club heads |
| US9433844B2 (en) | 2011-04-28 | 2016-09-06 | Nike, Inc. | Golf clubs and golf club heads |
| US9586104B2 (en) | 2006-07-21 | 2017-03-07 | Cobra Golf Incorporated | Multi-material golf club head |
| US9662551B2 (en) | 2010-11-30 | 2017-05-30 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9770632B2 (en) | 2012-05-31 | 2017-09-26 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9795845B2 (en) | 2009-01-20 | 2017-10-24 | Karsten Manufacturing Corporation | Golf club and golf club head structures |
| JP2020011023A (en) * | 2018-07-17 | 2020-01-23 | 明安國際企業股▲分▼有限公司 | Golf club head |
| JP7286214B1 (en) * | 2023-01-18 | 2023-06-05 | 株式会社 ロア・ジャパン | golf club head |
-
1999
- 1999-11-12 JP JP32301499A patent/JP2001137396A/en active Pending
Cited By (67)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002360746A (en) * | 2001-06-07 | 2002-12-17 | Sumitomo Rubber Ind Ltd | Golf club |
| US7914396B2 (en) | 2004-12-13 | 2011-03-29 | Bridgestone Sports Co., Ltd. | Golf club head |
| JP2007330579A (en) * | 2006-06-16 | 2007-12-27 | Yokohama Rubber Co Ltd:The | Golf club head and golf club |
| US9586104B2 (en) | 2006-07-21 | 2017-03-07 | Cobra Golf Incorporated | Multi-material golf club head |
| US8870682B2 (en) | 2006-07-21 | 2014-10-28 | Cobra Golf Incorporated | Multi-material golf club head |
| US7819757B2 (en) * | 2006-07-21 | 2010-10-26 | Cobra Golf, Inc. | Multi-material golf club head |
| US7883431B2 (en) | 2006-10-13 | 2011-02-08 | Bridgestone Sports Co., Ltd | Golf club head |
| JP2008099903A (en) * | 2006-10-19 | 2008-05-01 | Sri Sports Ltd | Wood type golf club head |
| JP4500296B2 (en) * | 2006-10-19 | 2010-07-14 | Ｓｒｉスポーツ株式会社 | Wood type golf club head |
| US7942759B2 (en) | 2006-12-12 | 2011-05-17 | Bridgestone Sports Co., Ltd. | Golf club head |
| JP2008154674A (en) * | 2006-12-21 | 2008-07-10 | Bridgestone Sports Co Ltd | Wood club head |
| US7798916B2 (en) | 2007-03-05 | 2010-09-21 | Bridgestone Sports Co., Ltd | Golf club head |
| US7686706B2 (en) | 2007-04-20 | 2010-03-30 | Bridgestone Sports Co., Ltd. | Golf club head |
| JP2009077906A (en) * | 2007-09-26 | 2009-04-16 | Bridgestone Sports Co Ltd | Golf club head |
| US7819758B2 (en) | 2008-03-26 | 2010-10-26 | Bridgestone Sports Co., Ltd. | Golf club head |
| US8216089B2 (en) | 2008-03-26 | 2012-07-10 | Bridgestone Sports Co., Ltd. | Golf club head |
| JP2010104473A (en) * | 2008-10-29 | 2010-05-13 | Bridgestone Sports Co Ltd | Golf club head |
| US10130854B2 (en) | 2009-01-20 | 2018-11-20 | Karsten Manufacturing Corporation | Golf club and golf club head structures |
| US9795845B2 (en) | 2009-01-20 | 2017-10-24 | Karsten Manufacturing Corporation | Golf club and golf club head structures |
| US9950219B2 (en) | 2009-01-20 | 2018-04-24 | Karsten Manufacturing Corporation | Golf club and golf club head structures |
| US9446294B2 (en) | 2009-01-20 | 2016-09-20 | Nike, Inc. | Golf club and golf club head structures |
| US9433834B2 (en) | 2009-01-20 | 2016-09-06 | Nike, Inc. | Golf club and golf club head structures |
| US9149693B2 (en) | 2009-01-20 | 2015-10-06 | Nike, Inc. | Golf club and golf club head structures |
| US9155944B2 (en) | 2009-01-20 | 2015-10-13 | Nike, Inc. | Golf club and golf club head structures |
| US9192831B2 (en) | 2009-01-20 | 2015-11-24 | Nike, Inc. | Golf club and golf club head structures |
| US9289661B2 (en) | 2009-01-20 | 2016-03-22 | Nike, Inc. | Golf club and golf club head structures |
| US9278265B2 (en) | 2009-07-24 | 2016-03-08 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US8376879B2 (en) | 2009-11-10 | 2013-02-19 | Bridgestone Sports Co., Ltd. | Golf club head |
| US20160151685A1 (en) * | 2010-11-30 | 2016-06-02 | Nike, Inc. | Golf Club Heads or Other Ball Striking Devices Having Distributed Impact Response |
| US9914025B2 (en) | 2010-11-30 | 2018-03-13 | Nike, Inc. | Golf club heads or other ball striking devices having distributed impact response |
| US10610746B2 (en) * | 2010-11-30 | 2020-04-07 | Nike, Inc. | Golf club heads or other ball striking devices having distributed impact response |
| US20180361209A1 (en) * | 2010-11-30 | 2018-12-20 | Nike, Inc. | Golf club heads or other ball striking devices having distributed impact response |
| US20120135821A1 (en) * | 2010-11-30 | 2012-05-31 | Nike, Inc. | Golf Club Heads Or Other Ball Striking Devices Having Distributed Impact Response |
| US20160151687A1 (en) * | 2010-11-30 | 2016-06-02 | Nike, Inc. | Golf Club Heads or Other Ball Striking Devices Having Distributed Impact Response |
| US10071290B2 (en) | 2010-11-30 | 2018-09-11 | Nike, Inc. | Golf club heads or other ball striking devices having distributed impact response |
| US20120142447A1 (en) * | 2010-11-30 | 2012-06-07 | Nike, Inc. | Golf Club Heads or Other Ball Striking Devices Having Distributed Impact Response |
| US9908011B2 (en) | 2010-11-30 | 2018-03-06 | Nike, Inc. | Golf club heads or other ball striking devices having distributed impact response |
| US9908012B2 (en) | 2010-11-30 | 2018-03-06 | Nike, Inc. | Golf club heads or other ball striking devices having distributed impact response |
| US9687705B2 (en) | 2010-11-30 | 2017-06-27 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9662551B2 (en) | 2010-11-30 | 2017-05-30 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9089747B2 (en) * | 2010-11-30 | 2015-07-28 | Nike, Inc. | Golf club heads or other ball striking devices having distributed impact response |
| US9694255B2 (en) | 2011-01-27 | 2017-07-04 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US10004953B2 (en) | 2011-01-27 | 2018-06-26 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9101808B2 (en) | 2011-01-27 | 2015-08-11 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9108090B2 (en) | 2011-01-27 | 2015-08-18 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9375624B2 (en) | 2011-04-28 | 2016-06-28 | Nike, Inc. | Golf clubs and golf club heads |
| US9409076B2 (en) | 2011-04-28 | 2016-08-09 | Nike, Inc. | Golf clubs and golf club heads |
| US9433845B2 (en) | 2011-04-28 | 2016-09-06 | Nike, Inc. | Golf clubs and golf club heads |
| US9186547B2 (en) | 2011-04-28 | 2015-11-17 | Nike, Inc. | Golf clubs and golf club heads |
| US9433844B2 (en) | 2011-04-28 | 2016-09-06 | Nike, Inc. | Golf clubs and golf club heads |
| US9186546B2 (en) | 2011-04-28 | 2015-11-17 | Nike, Inc. | Golf clubs and golf club heads |
| US9409073B2 (en) | 2011-04-28 | 2016-08-09 | Nike, Inc. | Golf clubs and golf club heads |
| US11083936B2 (en) | 2012-05-31 | 2021-08-10 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9770632B2 (en) | 2012-05-31 | 2017-09-26 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US10150017B2 (en) | 2012-05-31 | 2018-12-11 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US20150165280A1 (en) * | 2013-12-18 | 2015-06-18 | Acushnet Compnay | Golf club head |
| US9457241B2 (en) * | 2013-12-18 | 2016-10-04 | Acushnet Company | Golf club head |
| US9789371B2 (en) | 2014-06-20 | 2017-10-17 | Karsten Manufacturing Corporation | Golf club head or other ball striking device having impact-influencing body features |
| US9168435B1 (en) | 2014-06-20 | 2015-10-27 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9616299B2 (en) | 2014-06-20 | 2017-04-11 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| US9889346B2 (en) | 2014-06-20 | 2018-02-13 | Karsten Manufacturing Corporation | Golf club head or other ball striking device having impact-influencing body features |
| US9776050B2 (en) | 2014-06-20 | 2017-10-03 | Karsten Manufacturing Corporation | Golf club head or other ball striking device having impact-influencing body features |
| US9643064B2 (en) | 2014-06-20 | 2017-05-09 | Nike, Inc. | Golf club head or other ball striking device having impact-influencing body features |
| JP2016221168A (en) * | 2015-06-03 | 2016-12-28 | ダンロップスポーツ株式会社 | Golf club head |
| JP5848839B1 (en) * | 2015-06-03 | 2016-01-27 | ダンロップスポーツ株式会社 | Golf club head |
| JP2020011023A (en) * | 2018-07-17 | 2020-01-23 | 明安國際企業股▲分▼有限公司 | Golf club head |
| JP7286214B1 (en) * | 2023-01-18 | 2023-06-05 | 株式会社 ロア・ジャパン | golf club head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2001137396A (en) | Golf club head | |
| JP4222034B2 (en) | Golf club head | |
| US7066832B2 (en) | Golf club head | |
| JP3097071B2 (en) | Iron type golf club head | |
| JP3122227U (en) | Metal wood golf club head | |
| US8007372B2 (en) | Golf club head with localized grooves and reinforcement | |
| JP4296791B2 (en) | Golf club head | |
| US5397126A (en) | Metal wood golf club with true heel and toe weighting | |
| JP4205817B2 (en) | Golf club head | |
| JP4366375B2 (en) | Golf club head with concave insert | |
| US8523705B2 (en) | Golf club head | |
| JP3399896B2 (en) | Iron golf club head | |
| JP3663620B2 (en) | Golf club head for metal wood | |
| US20040082404A1 (en) | Golf club face plate and method of manufacture | |
| JP2002224247A (en) | Structure of golf club head | |
| JP4332765B2 (en) | Golf club head | |
| JPWO2002032514A1 (en) | Iron golf club and golf club set | |
| US20070049409A1 (en) | Hollow golf club head | |
| JP3315618B2 (en) | Golf club head | |
| JP4400900B2 (en) | Iron golf club head and manufacturing method thereof | |
| JP3628920B2 (en) | Wood type golf club head | |
| JP2003024481A (en) | Golf club head | |
| JPH09248353A (en) | Gold club head | |
| JPH08155060A (en) | Gold club head | |
| JP2007229487A (en) | Golf club head with concave insert |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060512 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20081009 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20081126 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20090331 |