JP2006320493A - Golf club head - Google Patents

Golf club head Download PDF

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JP2006320493A
JP2006320493A JP2005145751A JP2005145751A JP2006320493A JP 2006320493 A JP2006320493 A JP 2006320493A JP 2005145751 A JP2005145751 A JP 2005145751A JP 2005145751 A JP2005145751 A JP 2005145751A JP 2006320493 A JP2006320493 A JP 2006320493A
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head
weight member
golf club
center
gravity
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Masaru Kono
賢 甲野
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Dunlop Sports Co Ltd
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SRI Sports Ltd
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<P>PROBLEM TO BE SOLVED: To provide a golf club head which can accurately prevent a misregister between the body of the head and a weight member while enabling the adjustment of the center of gravity of the head. <P>SOLUTION: The golf club head 1 comprises the body 1A of the head, the weight member 1B which is so arranged as to be movable with respect to the body 1A of the head and changes the position of the center of gravity of the head with its movement and a fixing device 1C which enables the fixation of the weight member 1B on the body 1A of the head without moving at the hitting timing while allowing the movement of the weight member 1B by releasing the fixation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、ヘッド重心を変化させることが可能なゴルフクラブヘッドに関する。   The present invention relates to a golf club head capable of changing the center of gravity of the head.

ゴルフクラブヘッドの重心位置が打球の飛行特性に大きな影響を与えることは良く知られている。例えば、低い重心を持つゴルフクラブヘッドは、該重心からフェース面に立てた垂線の足であるスイートスポットの位置も低くなる。このようなヘッドを持つクラブでは、フェース面のスイートスポットよりも上側でボールを打球する機会が増える。このため、ギア効果によって打球のバックスピン量が低下する傾向がある。このような打球は、一般的に吹け上がりが少なく、飛距離を増大させやすい。逆の見方をすれば、高い飛球を得たい場合には、高い重心を持ったゴルフクラブヘッドを作れば良い。   It is well known that the position of the center of gravity of a golf club head greatly affects the flight characteristics of the hit ball. For example, in a golf club head having a low center of gravity, the position of a sweet spot that is a leg of a vertical line standing on the face surface from the center of gravity is also low. In a club having such a head, the chances of hitting the ball above the sweet spot on the face surface increase. For this reason, the backspin amount of the hit ball tends to decrease due to the gear effect. Such a hit ball generally has little rise and tends to increase the flight distance. In other words, if it is desired to obtain a high flying ball, a golf club head having a high center of gravity may be made.

また、ヘッド重心がトウ側にあるクラブは、前記スイートスポットよりもヒール側でボールを打撃する機会が増える。右打ちゴルファを前提に述べると、このような打撃は、ギア効果によってボールにスライス方向のサイドスピンをかけやすく、ひいてはフックを防ぐのに役立つ。逆に、スライスを防ぎたい場合には、ヒール側に重心を設けたゴルフクラブヘッドを作ることが有効である。   Further, in the club having the head center of gravity on the toe side, the chance of hitting the ball on the heel side with respect to the sweet spot increases. Assuming a right-handed golfer, such a hit is easy to apply a side spin in the slicing direction to the ball by the gear effect, and thus helps to prevent a hook. Conversely, to prevent slicing, it is effective to make a golf club head having a center of gravity on the heel side.

そこで、近年では、重心位置を変えることができるゴルフクラブヘッドが提案されている。例えば、下記特許文献１では、金属製のヘッド本体の中空部内に、ネジ棒に螺嵌されたウエイト部材を内装し、前記ネジ棒を回転させることによりウエイト部材をヘッド本体の前後、左右又は上下の何れかに移動させ得るゴルフクラブヘッドが提案されている。   In recent years, golf club heads that can change the position of the center of gravity have been proposed. For example, in Patent Document 1 below, a weight member screwed into a screw rod is housed in a hollow portion of a metal head main body, and the weight member is rotated back and forth, left and right or up and down of the head main body by rotating the screw rod. A golf club head that can be moved to either of these has been proposed.

特開平９−２８８４４号公報JP 9-28844 A

上記提案において、ウエイト部材をヘッド本体に確実に固定するためには、前記ネジ棒を回転不能に保持する必要がある。しかしながら、上記特許文献１は、このような手段を開示していない。また、ウエイト部材はネジ棒と移動可能に螺合するため、ネジ棒に対するウエイト部材の相対的な微小変位（例えばネジ棒とウエイト部材との間のバックラッシュ等）が生じる可能性がある。このため、前記提案のヘッドでは、スイング中や打撃時の瞬間にウエイト部材の位置が変化し、スイングリズムを損ねたり打球の方向性等を悪化させるおそれがある。   In the above proposal, in order to securely fix the weight member to the head main body, it is necessary to hold the screw rod in a non-rotatable manner. However, Patent Document 1 does not disclose such means. Further, since the weight member is movably screwed with the screw rod, there is a possibility that a minute displacement of the weight member relative to the screw rod (for example, backlash between the screw rod and the weight member) may occur. For this reason, in the proposed head, the position of the weight member changes during the swing or at the moment of hitting, which may impair the swing rhythm or deteriorate the directionality of the hit ball.

本発明は、以上のような実情に鑑み案出なされたもので、ウエイト部材を打撃時においても移動不能にヘッド本体に固定できかつ該固定の解除によって該ウエイト部材の移動を可能とする固定装置を設けることを基本として、ヘッド重心の調節を可能としつつヘッド本体とウエイト部材との位置ずれ等を確実に防止しうるゴルフクラブヘッドを提供することを目的としている。   The present invention has been devised in view of the above circumstances, and is a fixing device that can fix a weight member to a head body so that the weight member cannot be moved even at the time of striking, and can move the weight member by releasing the fixing. It is an object of the present invention to provide a golf club head that can reliably prevent the positional deviation between the head main body and the weight member while allowing the center of gravity of the head to be adjusted.

本発明のうち請求項１記載の発明は、ヘッド本体と、該ヘッド本体に対して移動可能に配されかつ移動によりヘッド重心の位置を変えるウエイト部材と、前記ウエイト部材を、打撃時においても移動することなく前記ヘッド本体に固定できかつ該固定の解除によって該ウエイト部材の前記移動を可能とする固定装置とを含むことを特徴とするゴルフクラブヘッドである。   According to the first aspect of the present invention, the head main body, a weight member that is movably arranged with respect to the head main body and changes the position of the center of gravity of the head by the movement, and the weight member is moved even at the time of impact. A golf club head comprising: a fixing device which can be fixed to the head main body without being fixed and which enables the movement of the weight member by releasing the fixing.

また請求項２記載の発明は、前記ウエイト部材は、ヘッド本体に対して一つの回転軸回りで回転移動可能に取り付けられ、かつ、前記回転軸から離れた位置に重心を有する請求項１記載のゴルフクラブヘッドである。   According to a second aspect of the present invention, the weight member is attached to the head body so as to be rotatable about a single rotation axis, and has a center of gravity at a position away from the rotation axis. Golf club head.

また請求項３記載の発明は、前記ウエイト部材は、外周縁が実質的な円形をなすとともに、前記回転軸が前記円形の実質的な中心にある請求項２記載のゴルフクラブヘッドである。   According to a third aspect of the present invention, in the golf club head according to the second aspect, the weight member has a substantially circular outer peripheral edge and the rotation axis is substantially at the center of the circular shape.

また請求項４記載の発明は、前記ウエイト部材は、比重が異なる少なくとも２種類の材料を複合させた複合体からなる請求項２又は３に記載のゴルフクラブヘッドである。   According to a fourth aspect of the present invention, in the golf club head according to the second or third aspect, the weight member is formed of a composite in which at least two kinds of materials having different specific gravities are combined.

また請求項５記載の発明は、前記ヘッド本体は、その外面に前記ウエイト部材を移動可能に配する凹み部が設けられ、前記ウエイト部材は外部から視認可能に前記凹み部に配される請求項１乃至４のいずれかに記載のゴルフクラブヘッドである。   According to a fifth aspect of the present invention, in the head main body, a recess is provided on the outer surface of the head body so that the weight member can be moved, and the weight member is provided in the recess so as to be visible from the outside. 5. The golf club head according to any one of 1 to 4.

また請求項６記載の発明は、前記ヘッド本体は、ボールを打球するフェース面を前面に具えたフェース部と、前記フェース面の上縁に連なりかつヘッド上部をなすクラウン部と、前記フェース面の下縁に連なりかつヘッド底面をなすソール部と、前記クラウン部と前記ソール部との間を前記フェース面のトウ側縁からバックフェースを通ってヒール側縁にのびるサイド部とを含むウッド型をなすとともに、前記凹み部は、前記ソール部及び／又は前記サイド部に設けられる請求項５に記載のゴルフクラブヘッドである。   In the invention according to claim 6, the head main body includes a face portion having a face surface for hitting a ball on the front surface, a crown portion connected to an upper edge of the face surface and forming an upper portion of the head surface, A wood type including a sole portion that is continuous with a lower edge and forms a bottom surface of the head, and a side portion that extends between the crown portion and the sole portion from the toe side edge of the face surface through the back face to the heel side edge. The golf club head according to claim 5, wherein the recess is provided on the sole portion and / or the side portion.

また請求項７記載の発明は、前記ヘッド本体は、ボールを打球するフェース面と、前記フェース面の下縁に連なりかつヘッド底面をなすソール部と、前記フェース面と反対側をなすバック面とを含むアイアン型をなすとともに、前記凹み部は、前記ソール面及び／又は前記バック面に設けられる請求項５に記載のゴルフクラブヘッドである。   In the invention according to claim 7, the head main body includes a face surface for hitting a ball, a sole portion connected to a lower edge of the face surface and forming a bottom surface of the head, and a back surface opposite to the face surface. The golf club head according to claim 5, wherein the concave portion is provided on the sole surface and / or the back surface.

本発明のゴルフクラブヘッドは、ウエイト部材を移動させることによって、ヘッド重心を好みの位置に変え得る。また、ウエイト部材は、固定装置により、打撃時においても移動することなく前記ヘッド本体に固定される。従って、例えばスイング中や打撃時の瞬間などにヘッド重心が変化せず、ひいてはスイングリズムや打球の方向性の悪化を防止しうる。   The golf club head of the present invention can change the center of gravity of the head to a preferred position by moving the weight member. Further, the weight member is fixed to the head main body by the fixing device without moving even when hit. Therefore, for example, the center of gravity of the head does not change during a swing or at the moment of hitting, and as a result, deterioration of the swing rhythm and the directionality of the hit ball can be prevented.

以下、本発明の実施の一形態を図面に基づき説明する。
図１は本実施形態のゴルフクラブヘッド（以下、単にヘッドということがある。）１の底面図、図２はそのＡ−Ａ拡大断面図をそれぞれ示す。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a bottom view of a golf club head (hereinafter simply referred to as a head) 1 according to the present embodiment, and FIG. 2 is an AA enlarged sectional view thereof.

図において、ヘッド１は、内部に中空部ｉが設けられたドライバー又はフェアウェイウッドのようなウッド型のヘッド１ｗが示される。前記ヘッド１の体積は、好ましくは２００cm3 以上、より好ましくは３００cm3 以上、さらに好ましくは３５０cm3 以上、特に好ましくは４００cm3 以上が望ましい。これにより、反発性能の向上、スイートエリアの拡大及びアドレス時の安心感が期待できる。またヘッド体積が大きすぎると、重量の増大化や耐久性の低下を招くおそれがある。従って、特に限定はされないが、ヘッド体積の上限は、好ましくは５００cm3 以下、さらに好ましくは４７０cm3 以下が望ましい。 In the figure, the head 1 is a wood type head 1w such as a driver or a fairway wood in which a hollow portion i is provided. The volume of the head 1 is preferably 200 cm 3 or more, more preferably 300 cm 3 or more, further preferably 350 cm 3 or more, and particularly preferably 400 cm 3 or more. Thereby, improvement in resilience performance, expansion of the sweet area and a sense of security at the time of address can be expected. On the other hand, if the head volume is too large, the weight may increase or the durability may decrease. Therefore, although not particularly limited, the upper limit of the volume of the head, preferably 500 cm 3 or less, more preferably 470 cm 3 or less.

本発明のヘッド１は、ヘッド本体１Ａと、該ヘッド本体１Ａに対して移動可能に配されかつ移動によりヘッド重心の位置を変えるウエイト部材１Ｂと、前記ウエイト部材１Ｂを、打撃時においても移動することなくヘッド本体１Ａに固定できかつ該固定の解除によって該ウエイト部材１Ｂの前記移動を可能とする固定装置１Ｃとを含んで構成される。   The head 1 of the present invention moves a head body 1A, a weight member 1B that is arranged so as to be movable with respect to the head body 1A and changes the position of the center of gravity of the head by the movement, and the weight member 1B even at the time of hitting. And a fixing device 1C that can be fixed to the head main body 1A without being fixed and that enables the movement of the weight member 1B by releasing the fixing.

本実施形態のヘッド本体１Ａは、ボールを打球するフェース面２を前面に具えたフェース部３と、前記フェース面２の上縁２ａに連なりかつヘッド上部をなすクラウン部４と、前記フェース面２の下縁２ｂに連なりヘッド底面を含むソール部５と、前記クラウン部４と前記ソール部５との間を前記フェース面のトウ側縁２ｃからバックフェースを通ってヒール側縁２ｄにのびるサイド部６と、図示しないシャフトが装着されるホーゼル部７とを含む殻体からなり、ヘッド１の実質的な主要部を構成する。   The head main body 1A of this embodiment includes a face portion 3 having a face surface 2 for hitting a ball on the front surface, a crown portion 4 connected to the upper edge 2a of the face surface 2 and forming the upper portion of the head, and the face surface 2 A sole portion 5 including the bottom of the head connected to the lower edge 2b, and a side portion extending between the crown portion 4 and the sole portion 5 from the toe side edge 2c of the face surface through the back face to the heel side edge 2d. 6 and a shell body including a hosel portion 7 to which a shaft (not shown) is mounted, and constitutes a substantial main portion of the head 1.

前記ヘッド本体１Ａは、例えばアルミニウム合金、チタン、チタン合金又はステンレス鋼等の各種の金属材料の１種又は２種以上を用いて構成されるが、これ以外にも樹脂、とりわけ繊維強化樹脂等をその一部ないし全部に用いることもできる。本実施形態のヘッド本体１Ａは、全てがチタン合金で作られている。また該ヘッド本体１Ａは、例えば予め複数個の部品に分けて準備され、これらを溶接又は接着等によって接合することにより形成される。各部品の成型方法は、鍛造、鋳造及び／又はプレス等、種々のものが採用され得る。   The head main body 1A is configured by using one or more of various metal materials such as aluminum alloy, titanium, titanium alloy, and stainless steel, but other than this, a resin, particularly a fiber reinforced resin is used. It can also be used for some or all of them. All of the head main body 1A of this embodiment is made of a titanium alloy. Further, the head main body 1A is prepared, for example, by dividing it into a plurality of parts in advance and joining them by welding or bonding. Various methods such as forging, casting and / or pressing can be adopted as the molding method of each part.

本実施形態において、前記ウエイト部材１Ｂは、ほぼ一定の厚さを有した円盤状の板状体８で構成される。また前記板状体８は、ヘッド本体１Ａへ取り付けられた状態において、ヘッド外面側をなす外向き面８ａと、その反対側をなす内向き面８ｂと、前記外向き面８ａと内向き面８ｂとの間を継ぐ外周面８ｃとを含む。   In the present embodiment, the weight member 1B is constituted by a disk-like plate-like body 8 having a substantially constant thickness. The plate-like body 8 is attached to the head main body 1A, and has an outward surface 8a that forms the head outer surface side, an inward surface 8b that forms the opposite side, and the outward surface 8a and the inward surface 8b. And an outer peripheral surface 8c connecting between the two.

また図４には、ウエイト部材１Ｂの平面図が示される。該ウエイト部材１Ｂの外周面８ｃは、平面視においてウエイト部材の外周縁８ｅをなし、その形状は実質的に円形である。該円形の中心は符号Ｏで表示される。   FIG. 4 shows a plan view of the weight member 1B. The outer peripheral surface 8c of the weight member 1B forms an outer peripheral edge 8e of the weight member in plan view, and the shape thereof is substantially circular. The center of the circle is indicated by the symbol O.

さらに本実施形態の板状体８には、取付孔９が設けられる。該取付孔９は、板状体８の中心部に設けられる。具体的には、取付孔９は、前記外周縁８ｅと同心をなす円形の内周縁９ｉを有する貫通孔からなる。従って、取付孔９の内周縁９ｉの中心は、前記中心Ｏと一致している。この実施形態では、取付孔９の内周面は平滑であり、ネジ溝などは設けられてないものが示される。   Furthermore, a mounting hole 9 is provided in the plate-like body 8 of the present embodiment. The mounting hole 9 is provided at the center of the plate-like body 8. Specifically, the attachment hole 9 is a through hole having a circular inner peripheral edge 9i concentric with the outer peripheral edge 8e. Accordingly, the center of the inner peripheral edge 9 i of the mounting hole 9 coincides with the center O. In this embodiment, the inner peripheral surface of the attachment hole 9 is smooth, and a screw groove or the like is not provided.

また、本実施形態において、前記板状体８は、比重が異なる少なくとも２種類の材料を複合させた複合体として構成される。即ち、板状体８は、第１の材料ｍ１と、前記第１の材料よりも小さい比重を有する第２の材料ｍ２とを含んで構成される。この例では、前記中心Ｏを通る半径線Ｌで区分された一方の略半円状領域が第１の材料ｍ１で形成されるととともに、残りの領域が第２の材料ｍ２で形成され、両者は一体に固着される。このようなウエイト部材１Ｂは、図４に示される平面視において、前記中心Ｏを通りかつ紙面に垂直な中心軸ＣＬ（この中心軸ＣＬは図２に示される。）から離れた位置に重心Ｇを持つことができる。ただし、前記第１の材料ｍ１と、第２の材料ｍ２との使用比率などは、任意に定めれば良い。   In the present embodiment, the plate-like body 8 is configured as a composite in which at least two kinds of materials having different specific gravities are combined. That is, the plate-like body 8 includes the first material m1 and the second material m2 having a specific gravity smaller than that of the first material. In this example, one substantially semicircular region divided by a radial line L passing through the center O is formed of the first material m1, and the remaining region is formed of the second material m2. Are fixed together. Such a weight member 1B has a center of gravity G at a position away from a central axis CL passing through the center O and perpendicular to the paper surface (this central axis CL is shown in FIG. 2) in the plan view shown in FIG. Can have. However, the usage ratio between the first material m1 and the second material m2 may be arbitrarily determined.

また、前記第１の材料ｍ１の比重ρ１が小さすぎるとヘッド重心やヘッドの慣性モーメントの調整が十分に行えない傾向があり、逆に大きすぎると、ヘッド重量の著しい増加を招きやすい。このような観点より、前記比重ρ１は、好ましくはヘッド本体１Ａよりも大きいことが望ましい。より具体的には、前記比重ρ１は、好ましくは４．５以上、より好ましくは７．５以上、さらに好ましくは１０．０以上が望ましく、かつ、上限については、好ましくは１８．０以下、より好ましくは１５．０以下、さらに好ましくは１３．０以下が望ましい。これらの材料としては、例えばタングステン、銅及び／又はニッケルの１種又は２種以上を含む合金が好適である。   Further, if the specific gravity ρ1 of the first material m1 is too small, there is a tendency that the center of gravity of the head and the inertia moment of the head cannot be adjusted sufficiently, and conversely if too large, the head weight is likely to increase significantly. From such a viewpoint, the specific gravity ρ1 is preferably larger than that of the head body 1A. More specifically, the specific gravity ρ1 is preferably 4.5 or more, more preferably 7.5 or more, still more preferably 10.0 or more, and the upper limit is preferably 18.0 or less, more Preferably it is 15.0 or less, more preferably 13.0 or less. As these materials, for example, alloys containing one or more of tungsten, copper and / or nickel are suitable.

また、より大きなヘッド重心等の調整幅を確保するためには、第１の材料ｍ１の比重ρ１と第２の材料ｍ２の比重ρ２との差（ρ１−ρ２）は、好ましくは１．０よりも大、より好ましくは３．０以上、さらに好ましくは５．０以上、特に好ましくは１０．０以上が望ましく、かつ、上限については、好ましくは１５．５以下、より好ましくは１３．５以下、さらに好ましくは１２．０以下が望ましい。   In order to secure a larger adjustment range such as the center of gravity of the head, the difference (ρ1−ρ2) between the specific gravity ρ1 of the first material m1 and the specific gravity ρ2 of the second material m2 is preferably from 1.0. More preferably 3.0 or more, still more preferably 5.0 or more, particularly preferably 10.0 or more, and the upper limit is preferably 15.5 or less, more preferably 13.5 or less, More preferably, it is 12.0 or less.

また、平面視における板状体８において、前記中心軸ＣＬから外周縁８ｅまでの半径を”Ｒ”、前記中心線ＣＬから板状体８の重心まで半径を”ｒ”とするとき、これらの半径比（ｒ／Ｒ）は、好ましくは０．５０以上、より好ましくは０．６０以上、さらに好ましくは０．７０以上が望ましく、かつ、上限については、好ましくは０．９０以下、より好ましくは０．８５以下、さらに好ましくは０．８０以下が望ましい。前記半径比（ｒ／Ｒ）が０．５未満の場合、ウエイト部材１Ｂを回転移動させても、ヘッド重心や慣性モーメントの調整代を大きく確保できない傾向があり、逆に０．９０を超えるものは製造がきわめて困難になる。   Further, in the plate-like body 8 in plan view, when the radius from the center axis CL to the outer peripheral edge 8e is “R” and the radius from the center line CL to the center of gravity of the plate-like body 8 is “r”, these The radius ratio (r / R) is preferably 0.50 or more, more preferably 0.60 or more, still more preferably 0.70 or more, and the upper limit is preferably 0.90 or less, more preferably 0.85 or less, more preferably 0.80 or less. When the radius ratio (r / R) is less than 0.5, even if the weight member 1B is rotationally moved, there is a tendency that a large adjustment margin for the center of gravity of the head and the moment of inertia cannot be secured, and conversely exceeds 0.90. Is extremely difficult to manufacture.

さらに、ウエイト部材１Ｂの全重量としては、好ましくは２ｇ以上、より好ましくは３ｇ以上、さらに好ましくは４ｇ以上が好ましく、かつ、上限については、好ましくは２０ｇ以下、より好ましくは１５ｇ以下、さらに好ましくは１３ｇ以下が望ましい。ウエイト部材１Ｂの全重量が小さすぎると、ヘッド重心の移動量や慣性モーメントの調整効果が小さくなる傾向があり、逆に大きすぎると、他部に十分な重量を配分できず、それらの性能を損ねたり、又はヘッド１の体積が小さくなるおそれがある。   Further, the total weight of the weight member 1B is preferably 2 g or more, more preferably 3 g or more, still more preferably 4 g or more, and the upper limit is preferably 20 g or less, more preferably 15 g or less, still more preferably 13 g or less is desirable. If the total weight of the weight member 1B is too small, the adjustment effect of the moving amount of the head center of gravity and the moment of inertia tends to be small. On the other hand, if it is too large, sufficient weight cannot be distributed to other parts, and their performance is reduced. There is a risk that the volume of the head 1 may be reduced.

また本実施形態において、ヘッド本体１Ａの外面には、前記ウエイト部材１Ｂを移動可能に配する段差状に凹んだ凹み部１２が設けられる。前記凹み部１２は、この例ではソール部５のほぼ中央部に設けられ、中空部ｉ側に向かって最も凹む底部１２ｂと、該底部１２ｂを囲む内周壁部１２ｉとを含む。この内周壁部１２ｉは、ソール部５の基準外面５Ｐ（図２において、フェース面２とサイド部６とを継ぐ滑らかな面）に連なっている。また図３に示されるように、ヘッド１の底面視において、凹み部１２の内周壁部１２ｉはほぼ円形の輪郭でのびている。   Further, in the present embodiment, the outer surface of the head main body 1A is provided with a recessed portion 12 that is recessed in a stepped manner to displace the weight member 1B. In this example, the recessed portion 12 is provided at a substantially central portion of the sole portion 5 and includes a bottom portion 12b that is most recessed toward the hollow portion i and an inner peripheral wall portion 12i that surrounds the bottom portion 12b. The inner peripheral wall portion 12i is continuous with the reference outer surface 5P of the sole portion 5 (a smooth surface connecting the face surface 2 and the side portion 6 in FIG. 2). As shown in FIG. 3, when the head 1 is viewed from the bottom, the inner peripheral wall portion 12 i of the recessed portion 12 extends with a substantially circular outline.

そして、前記凹み部１２には、その底部１２ｂに前記板状体８の内向き面８ｂが、また内周壁部１２ｉには板状体８の外周面８ｃがそれぞれ向き合うように板状体８が配される。このため、ウエイト部材１Ｂ（板状体８）は、前記中空部ｉの中ではなく、外部から視認可能な状態で前記凹み部１２に配置される。凹み部１２にウエイト部材１Ｂを配した状態において、前記内周壁部１２ｉと板状体８の外周面８ｃとの間には、小さな隙間が設けられる。これにより、ウエイト部材１Ｂは、少なくともその中心Ｏの回りの回転移動が許容され得る。   The indented portion 12 has a plate-like body 8 such that the inward surface 8b of the plate-like body 8 faces the bottom portion 12b and the outer peripheral surface 8c of the plate-like body 8 faces the inner peripheral wall portion 12i. Arranged. For this reason, the weight member 1 </ b> B (plate-like body 8) is disposed not in the hollow portion i but in the recessed portion 12 so as to be visible from the outside. In a state where the weight member 1 </ b> B is arranged in the recess 12, a small gap is provided between the inner peripheral wall portion 12 i and the outer peripheral surface 8 c of the plate-like body 8. Thereby, the weight member 1B can be allowed to move at least around its center O.

本実施形態において、前記固定装置１Ｂは、ネジ１０とこのネジ１０を固着しうるネジ穴１１とを含んで構成される。   In the present embodiment, the fixing device 1B includes a screw 10 and a screw hole 11 to which the screw 10 can be fixed.

前記ネジ１０として、本実施形態では、六角レンチを差し込み可能な六角穴が設けられた頭部１０ａと、該頭部１０ａからのびるネジ軸１０ｂとを含む六角穴付きネジが用いられる。ネジ軸１０ｂの山径は、板状体８の取付孔９の内径よりも僅かに小さく形成される。   In the present embodiment, the screw 10 is a hexagon socket head screw including a head portion 10a provided with a hexagon hole into which a hexagon wrench can be inserted and a screw shaft 10b extending from the head portion 10a. The crest diameter of the screw shaft 10 b is formed slightly smaller than the inner diameter of the mounting hole 9 of the plate-like body 8.

また、ネジ穴１１は、前記凹み部１２のほぼ中心部に設けられ、軸方向に所定の長さを有する。またネジ穴１１は、その軸方向がヘッド本体１Ａのクラウン、ソール方向、即ちほぼ垂直方向にのびている。   The screw hole 11 is provided at substantially the center of the recess 12 and has a predetermined length in the axial direction. Further, the axial direction of the screw hole 11 extends in the crown and sole directions of the head main body 1A, that is, in a substantially vertical direction.

本実施形態のヘッド１は、ヘッド本体１Ａの凹み部１２に配置された板状体８の取付孔９からネジ１０のネジ軸１０ｂを通し、かつ、ヘッド本体１Ａの前記ネジ穴１１にきつく螺合させることにより、ウエイト部材１Ｂがヘッド本体１Ａに固定される。即ち、板状体８は、凹み部１２の底部１２ｂとネジ１０の頭部１０ａとの間で強く保持され、また、この例では板状体８の内向き面８ｂが大きな圧力で底部１２ｂと接触しうる。これらの摩擦力によって、ウエイト部材１Ｂ（板状体８）は、ヘッド本体１Ａに強固にかつ確実に固着され、スイング時や打球時においても微小移動を防止できる。この際、板状体８の中心線ＣＬは、ネジ軸１０ｂの軸中心線とほぼ一致している。   The head 1 according to the present embodiment passes the screw shaft 10b of the screw 10 from the mounting hole 9 of the plate-like body 8 disposed in the recess 12 of the head main body 1A, and is screwed tightly into the screw hole 11 of the head main body 1A. By combining, the weight member 1B is fixed to the head main body 1A. That is, the plate-like body 8 is strongly held between the bottom portion 12b of the recessed portion 12 and the head portion 10a of the screw 10, and in this example, the inward surface 8b of the plate-like body 8 is separated from the bottom portion 12b by a large pressure. Can touch. Due to these frictional forces, the weight member 1B (plate-like body 8) is firmly and securely fixed to the head main body 1A and can prevent minute movement even during swinging or hitting. At this time, the center line CL of the plate-like body 8 substantially coincides with the axis center line of the screw shaft 10b.

他方、ネジ１０を少し弛めることにより、ヘッド本体１Ａと板状体８との固定が解除される。この場合、ネジ穴１１から離脱しない範囲でネジ１０を弛めるのが望ましい。また、固定を解除した状態において、板状体８は、ネジ軸１０ｂの回りで回転移動することができる。ネジ軸１０ｂの中心線は、板状体８の前記中心線ＣＬと実質的に一致しているため、板状体８は実質的に前記中心線ＣＬの回りで回転移動しうる。   On the other hand, by loosening the screw 10 a little, the fixing of the head body 1A and the plate-like body 8 is released. In this case, it is desirable to loosen the screw 10 as long as it does not detach from the screw hole 11. Further, in a state where the fixation is released, the plate-like body 8 can rotate around the screw shaft 10b. Since the center line of the screw shaft 10b substantially coincides with the center line CL of the plate-like body 8, the plate-like body 8 can substantially rotate around the center line CL.

板状体８の重心Ｇは、前記中心線ＣＬから半径方向に離れた位置に設けられている。従って、板状体８を前記中心線ＣＬの回りで回転させることにより、ヘッド重心の位置を好みの位置に変えることができる。具体的には、ウエイト部材１Ｂを、ヘッド１の底面側かつ前記中心線ＣＬの回りで３６０度の連続した範囲で回転させることにより、その重心Ｇを、ソール部５のトウ側、フェース側、ヒール側及びバックフェース側のいずれの側にも位置させ得る。従って、ヘッド重心の位置の調節が広い範囲で行える。   The center of gravity G of the plate-like body 8 is provided at a position away from the center line CL in the radial direction. Therefore, the position of the center of gravity of the head can be changed to a desired position by rotating the plate-like body 8 around the center line CL. Specifically, by rotating the weight member 1B in a continuous range of 360 degrees around the bottom surface side of the head 1 and around the center line CL, the center of gravity G is changed to the toe side, the face side, It can be located on either the heel side or the back face side. Therefore, the position of the center of gravity of the head can be adjusted in a wide range.

また、本実施形態では、ウエイト部材１Ｂが外部から視認可能にヘッド本体１Ａに配されてる。このため、ウエイト部材１Ｂ等のメンテナンス性に優れるばかりか、ウエイト部材１Ｂの位置を実際に確認しながら調整できる。従って、調整作業を能率化でき、使い勝手が向上する。とりわけ、ウエイト部材１Ｂの重心Ｇの位置ないしその近傍に、目視可能な目印等を付することにより、重量配分がより明確になり前記使い勝手をより一層向上できる。   In the present embodiment, the weight member 1B is disposed on the head body 1A so as to be visible from the outside. For this reason, not only is it excellent in maintainability of the weight member 1B and the like, but can be adjusted while actually confirming the position of the weight member 1B. Therefore, the adjustment work can be streamlined and the usability is improved. In particular, by attaching a visible mark or the like to the position of the center of gravity G of the weight member 1B or the vicinity thereof, the weight distribution becomes clearer and the usability can be further improved.

また、この実施形態では、ウエイト部材１Ｂが円形の板状体８をなし、しかもその回転移動が円形の実質的な中心Ｏで行われるため、ウエイト部材１Ｂ（板状体８）を移動させた場合でも、実質的なヘッドの形状変化が生じない。このため、凹み部１２は、板状体８が回転移動しうるのに足りる隙間を有した最小限の円形の凹みで形成され、ウエイト部材１Ｂに比して過剰に大きなスペースを持つ必要がない。従って、ヘッドの形状を従来のものから大きく変える必要が無くシンプルにでき、また生産性を向上するのにも役立つ。   Further, in this embodiment, the weight member 1B forms a circular plate-like body 8, and the rotational movement is performed at the substantial center O of the circle, so that the weight member 1B (plate-like body 8) is moved. Even in this case, no substantial change in the shape of the head occurs. For this reason, the dent part 12 is formed with a minimum circular dent having a gap sufficient to allow the plate-like body 8 to rotate and move, and does not need to have an excessively large space as compared with the weight member 1B. . Therefore, it is not necessary to change the shape of the head from the conventional one, and it can be simplified, and it is useful for improving productivity.

図５（Ａ）から（Ｃ）には、ウエイト部材１Ｂの他の実施形態を示す。これらの実施形態において、ウエイト部材１Ｂは、いずれも中心部に取付孔９を有する偏平な円盤状で形成された板状体８からなる。（Ａ）のものは、第１の材料ｍ１が小さい面積を占める扇状で形成され、他の部分が第２の材料ｍ２で形成される。また（Ｂ）のものは、平面視円形をなす第１の材料ｍ１が、板状体８の外周縁８ｅ側に設けられている。他の部分は第２の材料ｍ２で形成されている。   5A to 5C show another embodiment of the weight member 1B. In these embodiments, each of the weight members 1B includes a plate-like body 8 formed in a flat disk shape having a mounting hole 9 in the center. In (A), the first material m1 is formed in a fan shape occupying a small area, and the other part is formed of the second material m2. In (B), the first material m1 having a circular shape in plan view is provided on the outer peripheral edge 8e side of the plate-like body 8. The other part is made of the second material m2.

また、図５（Ｃ）の板状体８は、第１の材料ｍ１だけで形成されているが、中心Ｏを通る半径線Ｌの一方の部分が中実体８Ｘで、他方の部分が中空部１４を有する中空体８Ｙでそれぞれ形成される。これにより、その重心は中心Ｏから離れた位置に設けられる。なお、図示していないが、同様に、板状体８の厚さを部分的に変えることによって同様の機能を有するウエイト部材１Ｂを作り得る。従って、ウエイト部材１Ｂは、１種の材料（言い換えれば、１種の比重）からなるものであっても、外周縁８ｅを円形としつつ厚さや内部構造を変えることで、その重心を中心線ＣＬから離れた位置に設定できる。   5C is formed of only the first material m1, one part of the radial line L passing through the center O is a solid body 8X, and the other part is a hollow part. 14 are formed of hollow bodies 8Y. Thereby, the center of gravity is provided at a position away from the center O. Although not shown, similarly, the weight member 1B having the same function can be made by partially changing the thickness of the plate-like body 8. Therefore, even if the weight member 1B is made of one type of material (in other words, one type of specific gravity), the center of gravity is centered on the center line CL by changing the thickness and internal structure while making the outer peripheral edge 8e circular. It can be set away from.

図６には本発明の他の実施形態のヘッド１として、アイアン型のヘッド１ｉが示され、（Ａ）はその背面図、（Ｂ）はそのＢ−Ｂ拡大端面図である。本実施形態のヘッド１も、ヘッド本体１Ａと、該ヘッド本体１Ａに対して移動可能に配されかつ移動によりヘッド重心の位置を変えるウエイト部材１Ｂと、前記ウエイト部材１Ｂを、打撃時においても移動することなく前記ヘッド本体に固定できかつ該固定の解除によって該ウエイト部材１Ｂの前記移動を可能とする固定装置１Ｃとを含む。   FIG. 6 shows an iron-type head 1i as a head 1 according to another embodiment of the present invention, in which (A) is a rear view thereof, and (B) is an enlarged BB end view thereof. The head 1 of this embodiment also moves the head main body 1A, the weight member 1B that is arranged so as to be movable with respect to the head main body 1A, and changes the position of the center of gravity of the head by the movement, and the weight member 1B is moved even during impact. And a fixing device 1C that can be fixed to the head main body without moving and that allows the movement of the weight member 1B by releasing the fixing.

前記ヘッド本体１Ａは、ボールを打球するフェース面２と、前記フェース面２の下縁２に連なりかつヘッド底面をなすソール部５と、前記フェース面２と反対側をなすバック面１５とを含む。本実施形態において、前記バック面１５には、フェース面２側に凹んだ円形の凹み部１２と、そのほぼ中心にフェース面２に達することなく終端する底を具えたネジ穴１１とが設けられている。また、ウエイト部材１Ｂは、前述の実施形態と同様の板状体８から構成される。   The head main body 1 </ b> A includes a face surface 2 for hitting a ball, a sole portion 5 that is continuous with the lower edge 2 of the face surface 2 and forms a bottom surface of the head, and a back surface 15 that is opposite to the face surface 2. . In the present embodiment, the back surface 15 is provided with a circular recess 12 that is recessed toward the face surface 2, and a screw hole 11 having a bottom that terminates without reaching the face surface 2 at substantially the center thereof. ing. Further, the weight member 1B is composed of the same plate-like body 8 as in the above-described embodiment.

この実施形態では、ウエイト部材１Ｂたる板状体８は、その中心線ＣＬが、フェース面２と実質的に直角となるように、前記凹み部１２に配される。従って、固定装置１Ｃを解除した状態では、板状体８は前記中心線ＣＬの回りで３６０度の回転が許容される。従って、板状体８の重心Ｇは、実質的に単一の平面内において、トップ部１７側、トウＴ側、ソール部５側及びヒールＨ側に移動連続的に移動させることができる。これは、連続的かつより広いヘッド重心の位置の調整幅をもたらす。また、固定装置１Ｃの固定によって板状体８は所望の位置で移動不能に固定される。   In this embodiment, the plate-like body 8 which is the weight member 1B is arranged in the recess 12 so that the center line CL is substantially perpendicular to the face surface 2. Therefore, in a state where the fixing device 1C is released, the plate-like body 8 is allowed to rotate 360 degrees around the center line CL. Accordingly, the center of gravity G of the plate-like body 8 can be moved and moved continuously to the top portion 17 side, the toe T side, the sole portion 5 side, and the heel H side in a substantially single plane. This results in a continuous and wider adjustment range of the position of the head center of gravity. Further, the plate-like body 8 is fixed so as not to move at a desired position by fixing the fixing device 1C.

図７には、さらに本発明の他の実施形態として、ウッド型のヘッド１ｗが示され、（Ａ）、（Ｂ）及び（Ｃ）は、それぞれトウ側、バックフェース側及びヒール側から見た側面図である。また、図８にはヘッド１ｗの平面図が、図９（Ａ）にはそのＣ−Ｃ拡大端面図がそれぞれ示される。   FIG. 7 shows a wood-type head 1w as still another embodiment of the present invention. (A), (B), and (C) are viewed from the toe side, the back face side, and the heel side, respectively. It is a side view. Further, FIG. 8 shows a plan view of the head 1w, and FIG. 9A shows a CC enlarged end view thereof.

本実施形態のヘッド１も、ヘッド本体１Ａと、該ヘッド本体１Ａに対して移動可能に配されかつ移動によりヘッド重心の位置を変えるウエイト部材１Ｂと、前記ウエイト部材１Ｂを、打撃時においても移動することなく前記ヘッド本体に固定できかつ該固定の解除によって該ウエイト部材１Ｂの前記移動を可能とする固定装置１Ｃとを含む。   The head 1 of the present embodiment also moves the head main body 1A, the weight member 1B which is arranged so as to be movable with respect to the head main body 1A and changes the position of the center of gravity of the head by the movement, and the weight member 1B also moves at the time of striking. And a fixing device 1C that can be fixed to the head main body without moving and that allows the movement of the weight member 1B by releasing the fixing.

前記ヘッド本体１Ａは、前記フェース面２を有する前記フェース部３と、前記クラウン部４と、前記ソール部５と、前記サイド部６と、前記ネック部７とを含み、内部に中空部を有する殻体で構成される。ヘッド本体１Ａの材料等に関して、前述の実施形態と同様のものが適用される。   The head main body 1A includes the face portion 3 having the face surface 2, the crown portion 4, the sole portion 5, the side portion 6, and the neck portion 7, and has a hollow portion therein. Consists of shells. Regarding the material and the like of the head main body 1A, the same materials as those in the above-described embodiment are applied.

この実施形態において、ヘッド本体１Ａのサイド部６には、ウエイト部材１Ｂが移動可能に配される凹み部１２が設けられる。該凹み部１２は、サイド部６のトウＴ側とヒールＨ側との間をのびており、かつ、サイド部６の基準外面６Ｐから中空部ｉ側に凹んだ溝状のものとして形成される。前記サイド部６の基準外面６Ｐは、クラウン部４の外面とソール部５の外面とを滑らかに継ぐ面の意である。   In this embodiment, the side portion 6 of the head body 1A is provided with a recess 12 in which the weight member 1B is movably disposed. The concave portion 12 extends between the toe T side and the heel H side of the side portion 6, and is formed as a groove having a concave shape from the reference outer surface 6 </ b> P of the side portion 6 toward the hollow portion i. The reference outer surface 6 </ b> P of the side portion 6 is a surface that smoothly connects the outer surface of the crown portion 4 and the outer surface of the sole portion 5.

また図９（Ａ）から明らかなように、凹み部１２は、中空部ｉ側に凹む底部１２ｂと、該底部１２ｂのクラウン部側の縁から前記基準外面６Ｐにのびるクラウン側の内壁部１２ｃと、底部１２ｂのソール部側の縁から前記基準外面６Ｐにのびるソール側の内壁部１２ｓとを含む。これにより、凹み部１２は、断面がほぼ矩形状をなす溝状をなすとともに、その中に前記各部で区画される空間１９を形成する。また、前記空間１９は、トウ側Ｔからヒール側Ｈにのびるほぼ全長さに亘ってヘッド外面側で開口している。   9A, the recessed portion 12 includes a bottom portion 12b recessed toward the hollow portion i, a crown-side inner wall portion 12c extending from the edge of the bottom portion 12b on the crown portion side to the reference outer surface 6P. A sole-side inner wall portion 12s extending from the sole-side edge of the bottom portion 12b to the reference outer surface 6P. As a result, the recessed portion 12 forms a groove shape having a substantially rectangular cross section, and forms a space 19 defined by the respective portions therein. The space 19 is open on the outer surface side of the head over almost the entire length extending from the toe side T to the heel side H.

また、この実施形態では、ヘッド本体１Ａの外面側に、各内壁部１２ｃ、１２ｓから凹み部１２の内部に小長さで突出するフランジ部１２ｆ、１２ｆが設けられる。これらのフランジ部１２ｆは、前記基準外面６Ｐと同じ外面を有する。また、フランジ部１２ｆにより、凹み部１２の前記空間１９は、底部１２ｂの開口幅Ｗｂよりもヘッド外面側の開口幅Ｗａ（図７（Ｂ）に示される。）が小さく設定される。   Further, in this embodiment, flange portions 12f and 12f are provided on the outer surface side of the head main body 1A so as to protrude from the inner wall portions 12c and 12s into the recessed portion 12 with a small length. These flange portions 12f have the same outer surface as the reference outer surface 6P. Further, the flange portion 12f sets the space 19 of the recessed portion 12 so that the opening width Wa (shown in FIG. 7B) on the head outer surface side is smaller than the opening width Wb of the bottom portion 12b.

前記ウエイト部材１Ｂは、前記凹み部１２の空間１９のトウ〜ヒール方向のほぼ全長さに亘ってスライド移動可能に配されている。このスライドを円滑化するため、ウエイト部材１Ｂは、凹み部１２のクラウン部〜ソール部方向にも小さな変位が許容される。   The weight member 1B is arranged so as to be slidable over substantially the entire length of the space 19 of the recess 12 in the toe-heel direction. In order to make this sliding smooth, the weight member 1B is allowed to be slightly displaced in the direction from the crown portion to the sole portion of the recess portion 12.

本実施形態のウエイト部材１Ｂは、略矩形状であり、本体２０と、この本体２０の上下の端部からそれぞれクラウン部側及びソール部側にのびる厚さが小さい縁部２１とを有する。該ウエイト部材１Ｂは、単一の材料で構成することができる。言い換えると、ウエイト部材１Ｂの重心はどの位置にあっても良い。また、ウエイト部材１Ｂは、凹み部１２から抜け出すことがないよう、本実施形態ではその縁部２１、２１が前記フランジ部１２ｆ、１２ｆによって保持される。また、ウエイト部材１Ｂの本体２０には、取付穴９が設けられる。この取付孔９の内周面にはネジ溝が刻まれる。取付孔９の軸方向は、ヘッド本体の外面と直交する向き、すなわちこの例ではサイド部６の外面とほぼ直交する向きに設定されている。   The weight member 1 </ b> B of the present embodiment has a substantially rectangular shape, and includes a main body 20 and edge portions 21 with small thicknesses extending from the upper and lower end portions of the main body 20 to the crown portion side and the sole portion side, respectively. The weight member 1B can be made of a single material. In other words, the center of gravity of the weight member 1B may be at any position. Further, in this embodiment, the edge portions 21 and 21 of the weight member 1B are held by the flange portions 12f and 12f so that the weight member 1B does not come out of the recess portion 12. Moreover, the attachment hole 9 is provided in the main body 20 of the weight member 1B. A thread groove is formed on the inner peripheral surface of the mounting hole 9. The axial direction of the mounting hole 9 is set in a direction orthogonal to the outer surface of the head body, that is, in this example, a direction substantially orthogonal to the outer surface of the side portion 6.

前記固定装置１１Ｃは、前記実施形態と同様のネジ１０を含む。ネジ１０は、そのネジ軸１０ｂをウエイト部材１Ｂの取付孔９に螺合させかつヘッド本体１Ａ側に締め付けできる。ウエイト部材１Ｂは、取付孔９の軸方向回りの回転が規制される。このため、ネジ１０の締め付けに伴い、ネジ軸１０ｂに沿ってネジ１０の頭部１０ａ側へと相対移動する。そして、さらにネジ１０を締め付けることにより、ネジ軸１０ｂの先端が凹み部１２の底部１２ｂによって軸方向移動が規制されるとともに、ウエイト部材１Ｂの縁部２１がフランジ部１２ｆと大きな圧力で接触する。この摩擦力によって、ウエイト部材１Ｂはヘッド本体１Ａに移動不能に強固に固定される。   The fixing device 11C includes a screw 10 similar to that of the embodiment. The screw 10 can be tightened to the head main body 1A side by screwing the screw shaft 10b into the mounting hole 9 of the weight member 1B. The weight member 1 </ b> B is restricted from rotating around the mounting hole 9 in the axial direction. For this reason, as the screw 10 is tightened, the screw 10 moves relative to the head 10a side along the screw shaft 10b. Further, by further tightening the screw 10, the tip end of the screw shaft 10b is restricted from axial movement by the bottom portion 12b of the recessed portion 12, and the edge portion 21 of the weight member 1B comes into contact with the flange portion 12f with a large pressure. By this frictional force, the weight member 1B is firmly fixed to the head body 1A so as not to move.

なお図１０には、図９（Ａ）のＤ−Ｄ断面図を示すが、ウエイト部材１Ｂを、凹み部１２に沿って円弧状に湾曲させることによって、ウエイト部材１Ｂの縁部２１とフランジ部１２ｆとの間により広い接触面積を確保することができる。   FIG. 10 shows a cross-sectional view taken along the line DD in FIG. 9A. The weight member 1B is curved in an arc shape along the recessed portion 12, and the edge portion 21 and the flange portion of the weight member 1B are thereby bent. A wider contact area with 12f can be ensured.

他方、ネジ１０を弛めることにより、図９（Ｂ）に示されるように、ウエイト部材１Ｂは、ネジ１０の頭部１０ａから遠ざかる向きにネジ軸１０ｂの軸方向に移動できる。これにより、ウエイト部材１Ｂは、フランジ部１２ｆとの間の摩擦力が開放されるため、凹み部１２に沿ってトウからヒール方向に好みの位置まで移動し、ヘッド重心を調節できる。本実施形態のヘッド１では、ウエイト部材１Ｂがサイド部６に沿ってトウからヒールまでをほぼ移動できる。従って、ヘッド重心をトウ側、ヒール側又はバックフェース側に自在に調整できる。   On the other hand, by loosening the screw 10, as shown in FIG. 9B, the weight member 1B can move in the axial direction of the screw shaft 10b in a direction away from the head 10a of the screw 10. Thereby, since the frictional force between the weight member 1B and the flange portion 12f is released, the weight member 1B moves from the toe to the heel direction along the dent portion 12 to a desired position, and the center of gravity of the head can be adjusted. In the head 1 of the present embodiment, the weight member 1 </ b> B can move substantially from the toe to the heel along the side portion 6. Therefore, the center of gravity of the head can be freely adjusted to the toe side, the heel side, or the back face side.

図１１（Ａ）〜（Ｅ）には、さらに本発明の他の実施形態として、ウッド型のヘッド１ｗの底面図が示される。凹み部１２やウエイト部材１Ｂの構成は、先の実施形態と同様である。この実施形態のヘッド本体１Ａには、いずれもソール部５に凹み部１２が設けられている（勿論、サイド部６にも凹み部１２が設けられていても良い。）。   11A to 11E are bottom views of a wood-type head 1w as still another embodiment of the present invention. The configuration of the recess 12 and the weight member 1B is the same as that of the previous embodiment. In any of the head main bodies 1A of this embodiment, a recessed portion 12 is provided in the sole portion 5 (of course, the recessed portion 12 may also be provided in the side portion 6).

図１１（Ａ）のヘッド１は、ウエイト部材１Ｂをヘッドの前後方向、すなわち、フェース〜バックフェース側方向に移動させ得る凹み部１２を具えるものが示される。また同図（Ｂ）のヘッド１は、ウエイト部材１Ｂをヘッドのトウ、ヒール方向に移動させ得る凹み部１２を具えるものが示される。   The head 1 shown in FIG. 11A is provided with a recess 12 that can move the weight member 1B in the front-rear direction of the head, that is, the face-back face side direction. Further, the head 1 shown in FIG. 2B is provided with a recess 12 that can move the weight member 1B in the toe and heel directions of the head.

さらに、同図（Ｃ）及び（Ｄ）のヘッド１は、ウエイト部材１Ｂを交差する２方向に移動させ得るものが示される。（Ｃ）の態様は、ヘッドの前後方向又はトウ、ヒール方向にウエイト部材１Ｂを移動させ得る略十字状の凹み部１２が示され、また（Ｄ）のヘッド１は、図１１（Ｃ）の凹み部１２をほぼ４５度回転させたような凹み部１２を有する。   Further, the head 1 shown in FIGS. 1C and 1D can be moved in two directions intersecting the weight member 1B. The aspect of (C) shows a substantially cross-shaped recess 12 that can move the weight member 1B in the front-rear direction or the toe and heel directions of the head, and the head 1 in (D) is shown in FIG. The dent 12 is formed by rotating the dent 12 approximately 45 degrees.

また、図１１（Ｅ）のヘッド１は、ソール部５に、連続した環状の凹み部１２が設けられており、これにより、ウエイト部材１Ｂは、フェース側からトウ側を通りバックフェース側を経由してヒール側に至る連続した移動が可能となり、より広いヘッド重心の調整を可能とする。この際、ウエイト部材は、図示のような円盤状のものが好適である。   Further, in the head 1 of FIG. 11 (E), a continuous annular recess 12 is provided in the sole portion 5 so that the weight member 1B passes from the face side to the toe side and passes through the back face side. Thus, continuous movement to the heel side becomes possible, and a wider head center of gravity can be adjusted. In this case, the weight member is preferably a disk-shaped member as shown in the drawing.

図１２及び図１３には、さらに本発明の他の実施形態として、アイアン型のヘッド１ｉが示される。図１２に示されるヘッド１は、ソール部５に、トウ、ヒール方向にウエイト部材１Ｂを移動させうる凹み部１２が設けられている。凹み部１２やウエイト部材１Ｂの構成は、先の実施形態と同様である。また、図１３（Ａ）に示されるヘッドは、バック面１５に、トウ、ヒール方向にウエイト部材１Ｂを移動させうる凹み部１２が設けられる。さらに図１３（Ｂ）に示されるヘッド１は、バック面１５に、連続した環状の凹み部１２が設けられており、これにより、ウエイト部材１Ｂは、トップ側からトウ側を通りソール部側を経由してヒール側に至る連続した移動が可能となり、より広いヘッド重心の調整を可能とする。   12 and 13 show an iron-type head 1i as still another embodiment of the present invention. In the head 1 shown in FIG. 12, the sole portion 5 is provided with a recessed portion 12 that can move the weight member 1 </ b> B in the toe and heel directions. The configuration of the recess 12 and the weight member 1B is the same as that of the previous embodiment. The head shown in FIG. 13A is provided with a recess 12 on the back surface 15 that can move the weight member 1B in the toe and heel directions. Further, the head 1 shown in FIG. 13 (B) is provided with a continuous annular recess 12 on the back surface 15 so that the weight member 1B passes from the top side to the toe side and the sole part side. It is possible to continuously move to the heel side via the head, and it is possible to adjust a wider head center of gravity.

以上本発明の実施形態について説明したが、本発明は上記の実施形態に限定されることなく種々の態様に変更して実施することができる。   Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be implemented with various modifications.

図１〜４に示したウッド型のゴルフクラブヘッド（ヘッド体積４５０cm3 ）を試作した。各部の材料等は、次の通りである。
＜ヘッド本体＞
フェース部を開口とした主要部をＴｉ−６Ａｌ−４Ｖ（比重約４．５）を用いて鋳造成形し、その後、フェース部の開口に、同材料からなるフェース板を溶接した。
＜ウエイト部材＞
タングステン合金（比重約１２．０）と、アルミニウム合金（比重約２．８）とをネジによって固着し、円盤状の板状体を試作した。ウエイト部材の半径はＲ＝２０mm、ウエイト部材の中心から重心までの半径はｒ＝６．２mm、重量は２７．０ｇである。
＜固定装置＞
六角孔付きネジを用い、ウエイト部材をヘッド本体の凹み部に固定した。 The wood-type golf club head (head volume 450 cm 3 ) shown in FIGS. The material of each part is as follows.
<Head body>
The main part having the face part as an opening was cast and molded using Ti-6Al-4V (specific gravity about 4.5), and then a face plate made of the same material was welded to the opening of the face part.
<Weight material>
A tungsten alloy (specific gravity of about 12.0) and an aluminum alloy (specific gravity of about 2.8) were fixed with screws to produce a disk-shaped plate-like body. The radius of the weight member is R = 20 mm, the radius from the center of the weight member to the center of gravity is r = 6.2 mm, and the weight is 27.0 g.
<Fixing device>
The weight member was fixed to the recessed portion of the head body using a hexagonal hole screw.

次に、前記ウエイト部材をヘッド本体に対して回転させその相対位置を変えながら、ヘッド重心の位置の変化を調べたところ、トウ〜ヒール方向に、１．９mm、フェース〜バックフェース方向に１．７mmの調整が可能であった。   Next, when the change in the position of the center of gravity of the head was examined while rotating the weight member with respect to the head body and changing its relative position, it was found to be 1.9 mm in the toe-heel direction and 1.1 in the face-back face direction. Adjustment of 7 mm was possible.

次に、供試ヘッドにＦＲＰ製の同一のシャフトを装着し４５インチのウッド型ゴルフクラブを試作するとともに、該クラブをスイングロボットに取り付け、ヘッドスピードが５０ｍ／ｓとなるように調節してゴルフボールを５００発打撃した。打撃前後のヘッド重心の位置を比較したところ差異は見られなかった。   Next, the same shaft made of FRP is attached to the test head, and a 45-inch wood type golf club is prototyped, and the club is attached to a swing robot and adjusted so that the head speed becomes 50 m / s. The ball was hit 500 times. When comparing the position of the center of gravity of the head before and after hitting, no difference was found.

本発明の実施形態を示すヘッドの底面図である。It is a bottom view of the head which shows embodiment of this invention. そのＡ−Ａ端面図である。It is the AA end elevation. 図１の分解斜視図である。FIG. 2 is an exploded perspective view of FIG. 1. ウエイト部材の平面図である。It is a top view of a weight member. （Ａ）〜（Ｃ）は、いずれも他の実施形態を示すウエイト部材の平面図である。(A)-(C) are all the top views of the weight member which shows other embodiment. 本発明の他の実施形態としてアイアン型のヘッドを示し、（Ａ）は背面図、（Ｂ）はそのＢ−Ｂ拡大端面図である。As another embodiment of the present invention, an iron-type head is shown, (A) is a rear view, and (B) is an BB enlarged end view thereof. 本発明の他の実施形態としてウッド型のヘッドを示す、（Ａ）、（Ｂ）及び（Ｃ）は、それぞれトウ、バックフェース側及びヒール側から見た側面図である。(A), (B), and (C) which show the wood-type head as other embodiment of this invention are the side views seen from the toe, the back face side, and the heel side, respectively. ヘッドの平面図である。It is a top view of a head. （Ａ）、（Ｂ）は図８のＣ−Ｃ部分断面図である。(A), (B) is CC partial sectional drawing of FIG. 図９（Ａ）のＤ−Ｄ断面図である。It is DD sectional drawing of FIG. 9 (A). 本発明の他の実施形態を示し、（Ａ）〜（Ｅ）はウッド型ヘッドの底面図である。Other embodiment of this invention is shown, (A)-(E) is a bottom view of a wood type head. 本発明の他の実施形態を示すアイアン型ヘッドの底面図である。It is a bottom view of an iron type head showing other embodiments of the present invention. （Ａ）、（Ｂ）は、本発明の他の実施形態を示すアイアン型ヘッドの背面図である。(A), (B) is a rear view of an iron type head showing other embodiments of the present invention.

符号の説明Explanation of symbols

１ ゴルフクラブヘッド
１ｗ ウッド型のゴルフクラブヘッド
１ｉ アイアン型のゴルフクラブヘッド
１Ａ ヘッド本体
１Ｂ ウエイト部材
１Ｃ 固定装置
２ フェース面
３ フェース部
４ クラウン部
５ ソール部
６ サイド部
８ 板状体
１５ バック面
ｍ１ 第１の材料
ｍ２ 第２の材料
ＣＬ 回転軸 DESCRIPTION OF SYMBOLS 1 Golf club head 1w Wood type golf club head 1i Iron type golf club head 1A Head main body 1B Weight member 1C Fixing device 2 Face surface 3 Face portion 4 Crown portion 5 Sole portion 6 Side portion 8 Plate-like body 15 Back surface m1 First material m2 Second material CL Rotating shaft

Claims (7)

ヘッド本体と、該ヘッド本体に対して移動可能に配されかつ移動によりヘッド重心の位置を変えるウエイト部材と、
前記ウエイト部材を、打撃時においても移動することなく前記ヘッド本体に固定できかつ該固定の解除によって該ウエイト部材の前記移動を可能とする固定装置とを含むことを特徴とするゴルフクラブヘッド。 A head body, and a weight member that is movably arranged with respect to the head body and changes the position of the center of gravity of the head by movement;
A golf club head comprising: a fixing device capable of fixing the weight member to the head main body without moving even at the time of hitting and enabling the movement of the weight member by releasing the fixation. 前記ウエイト部材は、ヘッド本体に対して一つの回転軸回りで回転移動可能に取り付けられ、かつ、前記回転軸から離れた位置に重心を有する請求項１記載のゴルフクラブヘッド。   2. The golf club head according to claim 1, wherein the weight member is attached to the head body so as to be rotatable about one rotation axis, and has a center of gravity at a position away from the rotation axis. 前記ウエイト部材は、外周縁が実質的な円形をなすとともに、前記回転軸が前記円形の実質的な中心にある請求項２記載のゴルフクラブヘッド。   3. The golf club head according to claim 2, wherein the weight member has a substantially circular outer peripheral edge and the rotation axis is substantially at the center of the circular shape. 前記ウエイト部材は、比重が異なる少なくとも２種類の材料を複合させた複合体からなる請求項２又は３に記載のゴルフクラブヘッド。   4. The golf club head according to claim 2, wherein the weight member is made of a composite in which at least two kinds of materials having different specific gravities are combined. 前記ヘッド本体は、その外面に前記ウエイト部材を移動可能に配する凹み部が設けられ、前記ウエイト部材は外部から視認可能に前記凹み部に配される請求項１乃至４のいずれかに記載のゴルフクラブヘッド。   The said head main body is provided with the recessed part which distributes the said weight member on the outer surface so that a movement is possible, The said weight member is distribute | arranged to the said recessed part so that visual recognition from the outside is possible. Golf club head. 前記ヘッド本体は、ボールを打球するフェース面を前面に具えたフェース部と、前記フェース面の上縁に連なりかつヘッド上部をなすクラウン部と、前記フェース面の下縁に連なりかつヘッド底面をなすソール部と、前記クラウン部と前記ソール部との間を前記フェース面のトウ側縁からバックフェースを通ってヒール側縁にのびるサイド部とを含むウッド型をなすとともに、
前記凹み部は、前記ソール部及び／又は前記サイド部に設けられる請求項５に記載のゴルフクラブヘッド。 The head body includes a face portion having a face surface for hitting a ball on the front surface, a crown portion connected to the upper edge of the face surface and forming the upper portion of the head, and a bottom portion of the face surface and forming the bottom surface of the head. A wood part including a sole part and a side part extending between the crown part and the sole part from the toe side edge of the face surface through the back face to the heel side edge,
The golf club head according to claim 5, wherein the recessed portion is provided in the sole portion and / or the side portion. 前記ヘッド本体は、ボールを打球するフェース面と、前記フェース面の下縁に連なりかつヘッド底面をなすソール部と、前記フェース面と反対側をなすバック面とを含むアイアン型をなすとともに、前記凹み部は、前記ソール面及び／又は前記バック面に設けられる請求項５に記載のゴルフクラブヘッド。   The head main body has an iron type including a face surface for hitting a ball, a sole portion connected to a lower edge of the face surface and forming a bottom surface of the head, and a back surface opposite to the face surface, The golf club head according to claim 5, wherein a recess is provided on the sole surface and / or the back surface.
JP2005145751A 2005-05-18 2005-05-18 Golf club head Pending JP2006320493A (en)

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US20200330834A1 (en) * 2019-04-18 2020-10-22 Acushnet Company Golf club having an adjustable weight assembly
US20200330836A1 (en) * 2019-04-18 2020-10-22 Acushnet Company Golf club having an adjustable weight assembly
US10695628B1 (en) 2019-04-18 2020-06-30 Acushnet Company Golf club having an adjustable weight assembly
US11691057B2 (en) 2019-04-18 2023-07-04 Acushnet Company Golf club having an adjustable weight assembly
US20230028968A1 (en) * 2019-05-10 2023-01-26 Taylor Made Golf Company, Inc. Golf club
US11918874B2 (en) 2019-05-10 2024-03-05 Taylor Made Golf Company, Inc. Golf club
US20230052836A1 (en) * 2019-05-10 2023-02-16 Taylor Made Golf Company, Inc. Golf club
US11458374B2 (en) * 2019-05-10 2022-10-04 Taylor Made Golf Company, Inc. Golf club
US11413510B2 (en) * 2019-05-10 2022-08-16 Taylor Made Golf Company, Inc. Golf club
US11951365B2 (en) 2019-05-10 2024-04-09 Taylor Made Golf Company, Inc. Golf club
US20210331045A1 (en) * 2019-05-10 2021-10-28 Taylor Made Golf Company, Inc. Golf club
US11883724B2 (en) 2019-05-10 2024-01-30 Taylor Made Golf Company, Inc. Golf club
TWI726382B (en) * 2019-08-13 2021-05-01 復盛應用科技股份有限公司 Clamping device and method for clamping a golf club head
US20220203183A1 (en) * 2020-12-28 2022-06-30 Taylor Made Golf Company, Inc. Golf club heads
US20220203184A1 (en) * 2020-12-28 2022-06-30 Taylor Made Golf Company, Inc. Golf club heads
US11759685B2 (en) 2020-12-28 2023-09-19 Taylor Made Golf Company, Inc. Golf club heads
US11406881B2 (en) 2020-12-28 2022-08-09 Taylor Made Golf Company, Inc. Golf club heads
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