JP2002165905A - Golf club head - Google Patents
Golf club headInfo
- Publication number
- JP2002165905A JP2002165905A JP2000370231A JP2000370231A JP2002165905A JP 2002165905 A JP2002165905 A JP 2002165905A JP 2000370231 A JP2000370231 A JP 2000370231A JP 2000370231 A JP2000370231 A JP 2000370231A JP 2002165905 A JP2002165905 A JP 2002165905A
- Authority
- JP
- Japan
- Prior art keywords
- face
- golf club
- club head
- concave portion
- region
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0466—Heads wood-type
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0416—Heads having an impact surface provided by a face insert
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0445—Details of grooves or the like on the impact surface
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Golf Clubs (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、中空ヘッド形式の
ゴルフクラブヘッドに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow head type golf club head.
【０００２】[0002]
【従来の技術】近年のゴルフクラブヘッドは打つ球の捉
え易さ、安定性、打球の飛距離を向上させるために大型
化されており、一方では軽量化を図るために各部の壁厚
が薄くなっている。これらの事情に伴い、また、ソフト
な打球感で飛距離を出せるようにするため、フェース部
材の肉厚は薄くしている。2. Description of the Related Art In recent years, golf club heads have been increased in size in order to improve the ease of catching a hit ball, stability, and flight distance of the hit ball, while the wall thickness of each part has been reduced to reduce the weight. Has become. Under these circumstances, the thickness of the face member is reduced in order to provide a flight distance with a soft feel at impact.
【０００３】ところで、フェース面には、頻繁に球が当
たる中央打撃領域と、あまり球を当てない周辺領域があ
るが、多くのクラブヘッドにあっては中央打撃領域と球
を当てない周辺領域とを区別せずに全面にわたり同一肉
厚のフェース部材で形成されている。このため、球の打
撃位置となりやすい中央領域に応力が集中し、中央付近
から破損し易い。また、フェース部材の肉厚が全面にわ
たり同一であるため、球を当てる中央領域ばかりが撓っ
てしまい、フェース部全体の反発作用を充分に利用して
球を打つことが出来なかった。By the way, the face surface has a central hitting area where the ball hits frequently and a peripheral area where the ball does not hit much. However, in many club heads, a central hitting area and a peripheral area where the ball does not hit are used. Are formed of face members having the same thickness over the entire surface without distinction. For this reason, stress concentrates on the central area where the ball is likely to be hit, and the ball tends to be damaged near the center. In addition, since the thickness of the face member is the same over the entire surface, only the central area where the ball hits is bent, and the ball cannot be hit by making full use of the repulsion of the entire face portion.
【０００４】そこで、特開平１０―２５８１４２号公報
において、フェース部材の裏面にフェース中央領域から
フェース部材のエッジ部まで放射状に延びる階段状に形
成した突条のリブを設けて、フェース部を補強し、球の
打撃領域となるフェース中央付近で充分な反発を得よう
とするゴルフクラブヘッドが提案されている。Therefore, in Japanese Patent Application Laid-Open No. 10-258142, a step-shaped rib is formed on the back surface of the face member and extends radially from the center region of the face to the edge of the face member to reinforce the face portion. There has been proposed a golf club head which attempts to obtain a sufficient rebound in the vicinity of the center of a face which is a hitting area of a ball.
【０００５】[0005]
【発明が解決しようとする課題】しかし、フェース中央
領域からフェース部材のエッジ部まで延びるリブをフェ
ース部材裏面に階段放射状に設けた場合ではフェース部
材の薄肉化を達成できない。また、補強用リブが打点と
なるフェース中央領域における撓りを抑制してしまうた
め、中央領域の反発が十分に得られない。しかも、フェ
ース中央部からフェース部材のエッジ部まで放射状に延
びたリブが、フェース部周辺領域の撓りまで抑制するた
め、最も期待すべき周辺領域の反発機能を阻害する。そ
の結果、フェース全体を利用しての反発作用を有効に発
揮させることが出来ないという欠点があった。However, in the case where ribs extending from the central region of the face to the edge of the face member are provided on the back surface of the face member in a stepped radial shape, the thickness of the face member cannot be reduced. In addition, since the bending in the center area of the face where the reinforcing rib is a hit point is suppressed, the rebound in the center area cannot be sufficiently obtained. Moreover, the ribs extending radially from the center of the face to the edge of the face member suppress the bending of the peripheral region of the face portion, and thus impede the repulsion function of the peripheral region which is most expected. As a result, there is a drawback that the rebound action using the entire face cannot be effectively exerted.
【０００６】本発明は上記課題に着目してなされたもの
であり、その目的とするところは、フェース部材の薄肉
化を確保しながら、フェース部全体での反発作用を有効
かつ効率的に利用することが出来、かつ球の飛距離が伸
びると共に、球の打撃領域での応力集中が緩和され、フ
ェース部中央領域での破損を防止するようにしたゴルフ
クラブヘッドを提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to effectively and efficiently use a repulsion effect of the entire face portion while ensuring a thin face member. It is another object of the present invention to provide a golf club head which is capable of extending a flight distance of a ball, reducing stress concentration in a hitting region of the ball, and preventing breakage in a center region of a face portion.
【０００７】[0007]
【課題を解決するための手段】請求項１に係る発明は、
フェース部材の裏面を平面状の中央領域と複数の凹部を
有する周辺領域で形成したことを特徴とするゴルフクラ
ブヘッドである。The invention according to claim 1 is
A golf club head, wherein the back surface of the face member is formed by a planar central region and a peripheral region having a plurality of concave portions.
【０００８】請求項２に係る発明は、それぞれの凹部の
面積が１５０mm2以下に形成されていることを特徴とす
る請求項１に記載のゴルフクラブヘッドである。According to a second aspect of the present invention, there is provided the golf club head according to the first aspect, wherein each recess has an area of 150 mm 2 or less.
【０００９】請求項３に係る発明は、凹部が溝状に形成
され、それぞれの凹部の端部は隣接する他の凹部の端部
と向かい合わない位置に配置したことを特徴とする請求
項１又は請求項２に記載のゴルフクラブヘッドである。According to a third aspect of the present invention, the concave portion is formed in a groove shape, and the end portion of each concave portion is arranged at a position not facing the end portion of another adjacent concave portion. A golf club head according to claim 2.
【００１０】請求項４に係る発明は、外側寄りに位置す
る領域に配置される凹部の部分が、中心寄りに配置され
た凹部の部分よりも、深く、及び／又は単位面積当たり
に占める面積を大きく形成したことを特徴とする請求項
１又は請求項２又は請求項３に記載のゴルフクラブヘッ
ドである。[0010] According to a fourth aspect of the present invention, the concave portion disposed in the region located on the outer side has a greater area and / or an area occupied per unit area than the concave portion disposed on the center. The golf club head according to claim 1, 2 or 3, wherein the golf club head is formed large.
【００１１】[0011]
【発明の実施の形態】図１乃至図３は本発明の第１実施
形態に係る金属製中空ヘッドであるウッド形式のゴルフ
クラブへッドの例を示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 3 show an example of a wood type golf club head which is a metal hollow head according to a first embodiment of the present invention.
【００１２】このゴルフクラブへッド１は金属等の中空
部材によって形成されたヘッド本体２と、フェースを形
成するフェース部材３を備える。図２に示すように、ヘ
ッド本体２はフェース側に開口部１１を形成してある。
また、ゴルフクラブへッド１はヘッド本体２の下面部を
ソール１２、上面部をトップ１３、フェース部材３の左
右をそれぞれをトウ１４、ヒール１５としてあり、ヒー
ル１５側には図示しないクラブシャフトを取り付けるシ
ャフト止着孔１６を有したシャフト止着部１７が形成さ
れている。The golf club head 1 includes a head body 2 formed of a hollow member such as a metal and a face member 3 forming a face. As shown in FIG. 2, the head main body 2 has an opening 11 formed on the face side.
The golf club head 1 has a sole 12 on the lower surface of the head main body 2, a top 13 on the upper surface, and a toe 14 and a heel 15 on the left and right sides of the face member 3, respectively. A shaft fastening portion 17 having a shaft fastening hole 16 for attaching the shaft is formed.
【００１３】図２に示すように、上記フェース部材３は
ヘッド本体２の開口部１１に配設されている。フェース
部材３の輪郭形状はヘッド本体２の開口部１１の形状に
合わせたものであり、フェース部材３は全周端縁（エッ
ジ）をヘッド本体２の開口部１１の周縁に当て溶接する
ことによりヘッド本体２に固定されている。ヘッド本体
２の開口部１１の輪郭すなわちフェース部材３の輪郭は
一般的なゴルフクラブへッドのものと同様に略直交方向
において長さが異なり、図１に示されるように、トウ・
ヒール方向に長く、トップ・ソール方向に短い。As shown in FIG. 2, the face member 3 is provided in an opening 11 of the head body 2. The contour shape of the face member 3 conforms to the shape of the opening 11 of the head main body 2, and the face member 3 is formed by applying an entire peripheral edge (edge) to the periphery of the opening 11 of the head main body 2 by welding. It is fixed to the head body 2. The contour of the opening 11 of the head body 2, that is, the contour of the face member 3 is different in length in a substantially orthogonal direction like a general golf club head, and as shown in FIG.
Long in the heel direction, short in the top sole direction.
【００１４】上記フェース部材３はステンレス・マレー
ジング鋼などの鉄系金属やチタン、チタン合金等の圧延
材（鋳造で形成しても良い）で形成した、肉厚が３mm以
下の板材２０を素材としており、打球感がソフトで、撓
り易くなっている。フェース部材３はその一面をフェー
ス面２１とし、他の面を裏面２２としてある。フェース
部材３のフェース面２１と裏面２２の両面とも平面（平
坦）状の板材を素材として形成されるが、そのフェース
面２１には複数のスコアライン２３が形成され、裏面２
２には溝状に形成された複数の凹部２４が形成されてい
る。スコアライン２３および凹部２４はプレスまたは鋳
造により形成することが可能であるが、切削等の他の加
工方法で形成しても良い。各凹部２４の深さはスコアラ
イン２３の深さと同じか、またはスコアライン２３の深
さよりも浅く形成する。The face member 3 is made of a plate material 20 having a thickness of 3 mm or less, which is formed of a rolled material (may be formed by casting) such as an iron-based metal such as stainless steel or maraging steel or titanium or a titanium alloy. The shot feeling is soft and easy to bend. The face member 3 has one face as a face face 21 and the other face as a back face 22. Both the face surface 21 and the back surface 22 of the face member 3 are formed by using a flat (flat) plate material as a raw material.
2, a plurality of recesses 24 formed in a groove shape are formed. The score line 23 and the concave portion 24 can be formed by pressing or casting, but may be formed by other processing methods such as cutting. The depth of each concave portion 24 is formed to be the same as the depth of the score line 23 or shallower than the depth of the score line 23.
【００１５】スコアライン２３および凹部２４はいずれ
もトウ・ヒール方向に沿って延び、所定の等間隔で平行
に配置されている。スコアライン２３の配置間隔に比べ
て凹部２４の配置間隔の方が狭い。つまり、配置領域に
限って見ると、スコアライン２３よりも凹部２４の方が
密なピッチで配置されている。The score line 23 and the concave portion 24 both extend in the toe-heel direction and are arranged in parallel at predetermined regular intervals. The arrangement interval of the concave portions 24 is smaller than the arrangement interval of the score lines 23. That is, when viewed only in the arrangement area, the concave portions 24 are arranged at a denser pitch than the score lines 23.
【００１６】スコアライン２３の長手方向および凹部２
４の長手方向はトップ・ソール方向にほぼ直交する向き
（直交する方向からこれより３０°傾けた方向までの範
囲を含む）である。圧延材でフェース部材３を形成する
場合には少なくともその圧延方向をトップ・ソール方向
に向けて配置するようにすると材料の結晶粒の長い方向
がトップ・ソール方向となり、球を打撃する時のフェー
ス部材３の破損が防止される。また、圧延方向が複数あ
る場合は最終の圧延方向をトップ・ソール方向に向ける
ようにする。The longitudinal direction of the score line 23 and the recess 2
The longitudinal direction of 4 is a direction substantially perpendicular to the top-sole direction (including a range from the perpendicular direction to a direction inclined by 30 ° from this direction). When the face member 3 is formed of a rolled material, at least the rolling direction is arranged to be directed to the top-sole direction, and the long direction of the crystal grains of the material becomes the top-sole direction, and the face when hitting the ball is used. The damage of the member 3 is prevented. When there are a plurality of rolling directions, the final rolling direction is directed to the top / sole direction.
【００１７】図１に示すように、スコアライン２３も凹
部２４もいずれも等間隔で平行に配置され、図３に示す
ように、さらにスコアライン２３と凹部２４はフェース
部材３の厚み方向に重なり合わずに配置されている。ま
た、図１に示すように、それぞれの凹部２４の端部は隣
接する他の凹部２４の端部と向かい合わない位置に配置
されている。また、それぞれの凹部２４の端が隣接する
他の凹部２４の端からずれて配置されることが望まし
い。As shown in FIG. 1, both the score line 23 and the concave portion 24 are arranged in parallel at equal intervals, and the score line 23 and the concave portion 24 overlap in the thickness direction of the face member 3 as shown in FIG. They are not aligned. Further, as shown in FIG. 1, the end of each recess 24 is disposed at a position not facing the end of another adjacent recess 24. Further, it is desirable that the end of each concave portion 24 is arranged so as to be shifted from the end of another adjacent concave portion 24.
【００１８】各凹部２４個々の面積は１５０mm2以下に
形成されている。また、裏面２２において、単位面積当
たりに占める凹部２４の面積、つまり密度は、１０％以
上とし、幅は０．５mm以上とする。The area of each recess 24 is formed to be 150 mm 2 or less. In the back surface 22, the area of the concave portion 24 occupying a unit area, that is, the density is set to 10% or more, and the width is set to 0.5 mm or more.
【００１９】図１に示すように、スコアライン２３はフ
ェース中央領域を通り抜けてトップ・ソール方向の略全
長にわたって直線的に延びて形成されているが、スコア
ライン２３の両端はフェース面２１のエッジの手前の位
置で止まってエッジに達しない。As shown in FIG. 1, the score line 23 is formed to extend straight through substantially the entire length in the top-sole direction through the face center region, and both ends of the score line 23 are edges of the face surface 21. Stops at a position just before and does not reach the edge.
【００２０】図１に示すように、凹部２４はその中心線
がトップ・ソール方向の略全長にわたって直線的に延び
るが、凹部２４の延長端は裏面２２のエッジの手前の位
置で止まり、裏面２２の周面部分を突き抜けない。ただ
し、フェースの反発をエッジまで及ぼすために凹部２４
をエッジに達するように設けても良い。As shown in FIG. 1, the center of the recess 24 extends linearly over substantially the entire length in the top-sole direction, but the extended end of the recess 24 stops before the edge of the back surface 22 and Does not penetrate the peripheral surface of the However, the recess 24
May be provided so as to reach the edge.
【００２１】また、図３に示すように、凹部２４の端は
スコアライン２３の終端位置にも一致しない。そして、
スコアライン２３の終端位置が凹部２４の延長端よりも
フェース中央寄りに位置する。As shown in FIG. 3, the end of the concave portion 24 does not coincide with the end position of the score line 23. And
The end position of the score line 23 is located closer to the face center than the extended end of the concave portion 24.
【００２２】球の打撃位置となるフェース中央領域２５
に対応した裏面の中央領域２６には凹部２４を形成せ
ず、その裏面２２の中央領域２６は板材２０の平坦面が
そのまま残る。裏面中央領域２６は球を当てるフェース
面２１のフェース中央領域２５（球打面）に対応した領
域であり、裏面中央領域２６には平面状の領域で凹部２
４を設けていない。このため、フェース部材３の中央領
域部分における剛性は周辺領域２７の剛性に比べて大き
くなる。尚、裏面中央領域２６は平面状に形成される
が、この面は完全かつ理想的な平面でなくとも良いもの
で、例えば湾曲面であっても凹部のない平坦なものであ
っても良い。Face center region 25 to be the ball hitting position
The recess 24 is not formed in the central region 26 of the rear surface corresponding to the above, and the flat surface of the plate material 20 remains in the central region 26 of the rear surface 22 as it is. The back center region 26 is a region corresponding to the face center region 25 (ball striking surface) of the face surface 21 on which the ball hits, and the back center region 26 is a flat region in the concave portion 2.
4 is not provided. For this reason, the rigidity in the central region of the face member 3 is greater than the rigidity of the peripheral region 27. Although the rear surface central region 26 is formed in a flat shape, this surface does not have to be a perfect and ideal flat surface, and may be, for example, a curved surface or a flat surface without a concave portion.
【００２３】また、凹部２４を設けていない裏面中央領
域２６の形状は矩形でも円形でも他の形でもよいが、通
常、図２に示すように、トウ・ヒール方向よりもトップ
・ソール方向に長い楕円形状が良い。また、この楕円領
域の中心が、フェース面２１のフェースセンタFCに一致
するようにする。ここで、フェースセンタFCとはフェー
ス幅の中間位置を通るトップ・ソール方向のフェース中
心線上のトップエッジとリーディンエッジの中間にあた
るフェース上の点をいう。The shape of the rear center region 26 where the recess 24 is not provided may be rectangular, circular or other shapes, but is generally longer in the top-sole direction than in the toe-heel direction as shown in FIG. Elliptical shape is good. Further, the center of the elliptical region is set to coincide with the face center FC of the face surface 21. Here, the face center FC refers to a point on the face which is located between the top edge and the leading edge on the face center line in the top / sole direction passing through the middle position of the face width.
【００２４】上記凹部２４を設けていない裏面中央領域
２６の短軸の長さａと長軸の長さｂの関係はａ＜ｂであ
り、「ａ」はフェース高さ（フェース面２１のトップ・
ソール方向の長さ）の３分の１以上であり、「ｂ」はフ
ェース高さ（フェース面２１のトウ・ヒール方向の長
さ）の３分の１以上であることが打撃性能上好ましい。
また、「ａ」はフェース面２１内領域において、１５mm
以上である方が、球の打撃感が明確で安定性が生まれ
る。The relationship between the length a of the short axis and the length b of the long axis of the back center region 26 where the recess 24 is not provided is a <b, and “a” is the face height (the top of the face surface 21).・
The length is preferably one-third or more of the sole direction (length in the sole direction), and “b” is preferably one-third or more of the face height (the length of the face surface 21 in the toe-heel direction) in terms of impact performance.
“A” is 15 mm in the area within the face surface 21.
With the above, the hit feeling of the ball is clear and stability is generated.
【００２５】また、凹部２４は０．０５mm〜１．５mmの
深さであり、スコアライン２３の深さと同じか、または
スコアライン２３の深さよりも浅く形成されている。た
だし、凹部２４の深さをスコアライン２３の深さよりも
深く形成してもよく、この場合は球の反発が良くなる。The recess 24 has a depth of 0.05 mm to 1.5 mm, and is formed to be the same as the depth of the score line 23 or shallower than the depth of the score line 23. However, the depth of the concave portion 24 may be formed to be deeper than the depth of the score line 23. In this case, the rebound of the sphere is improved.
【００２６】さらに、本実施形態では凹部２４が全長に
わたり一定の深さで形成されている。また、各凹部２４
の深さはいずれも等しい。ただし、凹部２４は裏面２２
に滑らかに連なるようにフェース部材３のバルジに合致
する湾曲を付ける。また、凹部２４の両端縁または幅方
向縁は裏面２２に滑らかに連なるように丸みや傾斜等を
付けてなる緩衝連続部を形成し、応力集中を極力避ける
ようにしても良い。Further, in this embodiment, the concave portion 24 is formed at a constant depth over the entire length. Also, each recess 24
Are equal in depth. However, the recess 24 is formed on the back surface 22.
A curve matching the bulge of the face member 3 is provided so as to be smoothly connected. Also, both end edges or width direction edges of the concave portion 24 may be formed with a buffer continuous portion which is rounded or inclined so as to be smoothly connected to the back surface 22 so as to minimize stress concentration.
【００２７】凹部２４の溝断面形状は図３に示すように
円弧状であるが、矩形や三角形等の他の形状のものであ
っても良く、また、途中で形状を変えて周辺領域にかけ
ての最適な撓り特性を出すようにしても良い。The cross-sectional shape of the recess 24 is arc-shaped as shown in FIG. 3, but may be other shapes such as a rectangle or a triangle. Optimal bending characteristics may be obtained.
【００２８】本実施形態では各凹部２４の深さはいずれ
も等しく形成してあるが、周辺領域にかけての最適な撓
り特性を得るため、凹部２４の深さは適宜異なるものと
しても良く、例えば、裏面中央領域２６寄りのものが浅
く、フェース部外側寄り程深くなるものがある。また、
個々の凹部２４の深さが場所によって異なるものでも良
く、例えば、裏面中央領域２６寄りが浅く、フェース部
外側寄りが深いものであっても良い。また、個々の凹部
２４の幅を裏面中央領域２６寄りが狭く、フェース部外
側寄りが広くなるものであっても良い。In the present embodiment, the depths of the recesses 24 are all equal, but the depths of the recesses 24 may be different as appropriate in order to obtain optimum bending characteristics over the peripheral region. Some are closer to the rear center region 26 and shallower toward the outside of the face. Also,
The depth of each of the concave portions 24 may be different depending on the location. For example, the depth may be shallow toward the back surface central region 26 and deep toward the outside of the face portion. Further, the width of each concave portion 24 may be narrower toward the rear center region 26 and wider toward the outside of the face portion.
【００２９】勿論、これらの形態を適宜組み合わせて構
成し、フェース部の周辺側程、剛性を小さく微視的に撓
み易くなるように設計すれば、フェース中央部の強度を
確保しながらフェース部を微視的に撓み易くできる。Of course, if these configurations are appropriately combined and designed so that the rigidity is small and the microscopic bend becomes easy toward the periphery of the face portion, the strength of the face center portion is secured while securing the face portion. It can be easily microscopically bent.
【００３０】裏面中央領域２６には凹部２４を設けてい
ないので、フェース部中央領域２５の打撃強度が高ま
る。フェース部中央領域２５に比し、凹部２４を形成し
た周辺領域２７の剛性が小さくなるため、フェース面２
１の中央領域で球を打撃したときの応力が周辺領域２７
へ伝達され、フェース部中央領域からその周辺領域にか
けての撓りが平均化され、フェース部全体で充分な反発
力が生まれ、球の飛距離が伸び、かつ打撃の安定性が増
す。Since the concave portion 24 is not provided in the rear center region 26, the impact strength of the face center region 25 is increased. Since the rigidity of the peripheral region 27 in which the concave portion 24 is formed is smaller than that of the face central region 25, the face surface 2
1 when the ball is hit in the central area,
The deflection from the central region of the face portion to the peripheral region thereof is averaged, sufficient repulsive force is generated in the entire face portion, the flight distance of the ball is increased, and the stability of impact is increased.
【００３１】また、球を打撃したときの応力集中が緩和
されるため、特に衝撃を受けやすいフェース部中央領域
の破損強度が高まる。フェース周辺領域に複数形成され
たそれぞれの凹部２４は面積が小さく、散在させること
で中央領域２５に比し周辺領域の剛性を小さくしている
ので、その周辺領域の強度を確保できる。つまり、フェ
ース周辺領域にのみ、凹部２４を形成したことで、フェ
ース部の周辺領域が撓り易く、フェース部全体の強度を
高めることができる。Further, since the stress concentration at the time of hitting the ball is alleviated, the breaking strength of the center area of the face, which is particularly susceptible to impact, is increased. Each of the plurality of recesses 24 formed in the face peripheral region has a small area, and is scattered to reduce the rigidity of the peripheral region as compared with the central region 25, so that the strength of the peripheral region can be secured. That is, since the concave portion 24 is formed only in the face peripheral region, the peripheral region of the face portion is easily bent, and the strength of the entire face portion can be increased.
【００３２】さらに、圧延材でフェース部材３を形成し
た場合にその圧延方向をトップ・ソール方向に向けて配
置すれば、圧延方向のトップ・ソール方向の破断伸度が
大きくなり、凹部２４に沿っての破断に対する強度を高
めることができる。Further, when the face member 3 is formed of a rolled material, if the rolling direction is arranged in the direction of the top sole, the elongation at break in the direction of the top sole in the rolling direction increases, and The strength against all breaks can be increased.
【００３３】スコアライン２３と凹部２４はフェース部
材３の厚み方向に重なり合わずに配置されているため、
フェース部材３が薄くてもスコアライン２３と凹部２４
を最適な深さで設定することが可能である。Since the score line 23 and the concave portion 24 are arranged without overlapping in the thickness direction of the face member 3,
Score line 23 and recess 24 even if face member 3 is thin
Can be set at an optimum depth.
【００３４】尚、フェース周辺領域に形成する凹部の形
態は溝状のものに限らない。図４に示すように、丸い面
積で半球状の窪みをスポット状に形成してこれを凹部３
０としたものであっても良い。このスポット状の複数の
凹部３０を配設する仕方としては前述した溝状の凹部２
４が存在した領域の中心線に相応する仮想線に沿って並
べることが考えられる。このように一直線に並べるとき
の凹部３０のピッチは隣の列との間隔よりも小さい。す
ると、前述した溝状の凹部２４の場合と同様に機能す
る。勿論、並べるときのピッチや列の間隔を種々変更し
たものでも良い。また、裏面中央領域２６寄りのものが
浅く、フェース部外側寄りのもの程深くなるものであっ
ても良いし、裏面中央領域２６寄りのもの程面積が小さ
く、フェース部外側寄りのもの程面積を大きくしたもの
であっても良い。個々の凹部３０の深さや大きさはその
場所に応じて最適なものを選べば良い。また、複数の凹
部３０の配置も整列させて配置する場合に限らず、斜列
や正列の配置形式などその配列する方式には制限がな
い。The shape of the concave portion formed in the face peripheral region is not limited to the groove shape. As shown in FIG. 4, a hemispherical dent having a round area is formed in a spot shape and
It may be 0. The method of arranging the plurality of spot-shaped recesses 30 is the same as that of the groove-shaped recess 2 described above.
It is conceivable to arrange them along an imaginary line corresponding to the center line of the area where 4 existed. The pitch of the concave portions 30 when they are arranged in a straight line is smaller than the interval between the adjacent rows. Then, it functions in the same manner as the case of the groove-shaped recess 24 described above. Of course, the pitch and the interval between rows may be variously changed. Also, the one closer to the back center region 26 may be shallower and the closer to the outside of the face part may be deeper, and the one closer to the back center region 26 has a smaller area, and the one closer to the outside of the face part has a smaller area. It may be enlarged. The optimum depth and size of each recess 30 may be selected according to the location. In addition, the arrangement of the plurality of recesses 30 is not limited to the case where they are arranged in an aligned manner, and there is no restriction on the arrangement method such as the arrangement form of diagonal rows or regular rows.
【００３５】また、図５に示すように、前述した溝状の
凹部２４を斜めに配設するものであっても良い。この場
合、凹部２４はフェース面２１の正面から見てスコアラ
イン２３に対して斜めに交差する関係になる。Further, as shown in FIG. 5, the above-mentioned groove-shaped concave portion 24 may be disposed obliquely. In this case, the recess 24 obliquely intersects the score line 23 when viewed from the front of the face surface 21.
【００３６】また、前述した溝状の凹部２４が一部連な
る形態でも良い。さらには、複数の凹部２４が格子状に
交差する形態のものであっても良い。複数の凹部を有す
る周辺領域は中央領域を囲む全周になくとも中央領域の
周辺であれば良い。Further, a form in which the above-mentioned groove-shaped concave portions 24 are partially connected may be used. Further, a configuration in which the plurality of concave portions 24 intersect in a lattice shape may be used. The peripheral region having a plurality of concave portions does not have to be on the entire periphery surrounding the central region, but may be on the periphery of the central region.
【００３７】本発明は上述した形態のものに限られるも
のではなく、また、上述した各種形態のものを適宜組み
合わせて構成するものであっても良い。The present invention is not limited to the above-described embodiments, and may be configured by appropriately combining the various embodiments described above.
【００３８】[0038]
【発明の効果】以上説明したように本発明のゴルフクラ
ブヘッドによれば、フェース部材の薄肉化を確保しなが
ら、フェース部全体での反発作用を有効かつ効率的に利
用することが出来、かつ球の飛距離が伸びると共に、球
の打撃領域での応力集中が緩和され、フェース部中央領
域の破損を防げる。As described above, according to the golf club head of the present invention, it is possible to effectively and efficiently use the repulsion of the entire face portion while ensuring the thickness of the face member is reduced, and As the flight distance of the ball increases, stress concentration in the hitting area of the ball is reduced, and damage to the center area of the face can be prevented.
【図１】第１実施形態に係るゴルフクラブへッドの正面
図。FIG. 1 is a front view of a golf club head according to a first embodiment.
【図２】同じく、第１実施形態に係るゴルフクラブへッ
ドの側部を通る横断面図。FIG. 2 is a cross-sectional view of the golf club head according to the first embodiment, which passes through a side portion of the golf club head.
【図３】同じく、第１実施形態に係るゴルフクラブへッ
ドのフェース部材の断面図。FIG. 3 is a sectional view of a face member of the golf club head according to the first embodiment.
【図４】他の実施形態に係るゴルフクラブへッドの正面
図。FIG. 4 is a front view of a golf club head according to another embodiment.
【図５】さらに他の実施形態に係るゴルフクラブへッド
の正面図。FIG. 5 is a front view of a golf club head according to still another embodiment.
１…ゴルフクラブへッド、２…ヘッド本体、３…フェー
ス部材、２１…フェース面、２２…フェース部材の裏
面、２４…凹部、２５…フェース中央領域、２６…裏面
中央領域、２７…周辺領域。DESCRIPTION OF SYMBOLS 1 ... Golf club head, 2 ... Head main body, 3 ... Face member, 21 ... Face surface, 22 ... Back surface of face member, 24 ... Concave, 25 ... Face central area, 26 ... Back center area, 27 ... Peripheral area .
Claims (4)
と複数の凹部を有する周辺領域で形成したことを特徴と
するゴルフクラブヘッド。1. A golf club head, wherein a back surface of a face member is formed by a planar central region and a peripheral region having a plurality of concave portions.
に形成されていることを特徴とする請求項１に記載のゴ
ルフクラブヘッド。2. The golf club head according to claim 1, wherein each recess has an area of 150 mm 2 or less.
の端部は隣接する他の凹部の端部と向かい合わない位置
に配置したことを特徴とする請求項１又は請求項２に記
載のゴルフクラブヘッド。3. The concave portion according to claim 1, wherein the concave portion is formed in a groove shape, and an end portion of each concave portion is arranged at a position not facing an end portion of another adjacent concave portion. Golf club head.
部の部分が、中心寄りに配置された凹部の部分よりも、
深く、及び／又は単位面積当たりに占める面積を大きく
形成したことを特徴とする請求項１又は請求項２又は請
求項３に記載のゴルフクラブヘッド。4. The portion of the concave portion arranged in the region located closer to the outer side is more than the portion of the concave portion arranged closer to the center.
The golf club head according to claim 1, wherein the golf club head is formed to be deep and / or to have a large area per unit area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000370231A JP2002165905A (en) | 2000-12-05 | 2000-12-05 | Golf club head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000370231A JP2002165905A (en) | 2000-12-05 | 2000-12-05 | Golf club head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002165905A true JP2002165905A (en) | 2002-06-11 |
Family
ID=18840152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000370231A Pending JP2002165905A (en) | 2000-12-05 | 2000-12-05 | Golf club head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002165905A (en) |
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| US11745062B2 (en) | 2018-07-12 | 2023-09-05 | Karsten Manufacturing Corporation | Golf club head faceplates with lattices |
| JP2021007513A (en) * | 2019-06-28 | 2021-01-28 | 株式会社Sonic | Golf club head |
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