JP3163240B2 - Joint structure between head and shaft - Google Patents
Joint structure between head and shaftInfo
- Publication number
- JP3163240B2 JP3163240B2 JP30209295A JP30209295A JP3163240B2 JP 3163240 B2 JP3163240 B2 JP 3163240B2 JP 30209295 A JP30209295 A JP 30209295A JP 30209295 A JP30209295 A JP 30209295A JP 3163240 B2 JP3163240 B2 JP 3163240B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- insertion hole
- head
- shaft insertion
- pin
- 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.)
- Expired - Fee Related
Links
Landscapes
- Golf Clubs (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ヘッドとシャフト
との接合力を高めることによりヘッド抜けの防止を図っ
たゴルフクラブのヘッドとシャフトとの接合構造に関
し、さらに詳述すると、シャフト挿入孔の軸長が短く、
ヘッドとシャフトとの接着スパンが短いヘッドを用いた
ゴルフクラブに好適に使用される接合構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure between a head and a shaft of a golf club in which the head is prevented from coming off by increasing the joint force between the head and the shaft. The shaft length is short,
The present invention relates to a joining structure suitably used for a golf club using a head having a short adhesive span between a head and a shaft.
【０００２】[0002]
【従来の技術】これまで、ゴルフクラブのヘッドとして
は、ホゼル部を比較的長く形成するとともに、このホゼ
ル部にシャフト挿入孔（ホゼル穴孔）をヘッドを貫通し
ないように設けてシャフト挿入孔の底部を閉塞した構造
（閉塞ボア構造）のものが多用されてきた。これに対
し、近年では、ホゼル部を短く形成し、かつこのホゼル
部にシャフト挿入孔をヘッドを貫通するように設けるこ
とにより、シャフト挿入孔の底部をクラブの下側に開口
させた構造（スルーボア構造）のヘッドも使用されてき
ている。2. Description of the Related Art Heretofore, as a golf club head, a hosel portion has been formed relatively long, and a shaft insertion hole (hosole hole hole) has been provided in the hosel portion so as not to penetrate the head. A structure with a closed bottom (closed bore structure) has been frequently used. On the other hand, recently, a hosel portion is formed short, and a shaft insertion hole is provided in the hosel portion so as to penetrate the head, so that a bottom portion of the shaft insertion hole is opened below the club (through-bore). Structure) heads have also been used.
【０００３】前者の閉塞ボア構造のヘッドでは、シャフ
ト挿入孔に挿入したシャフト先端部の外周面とシャフト
挿入孔の内周壁とを接着剤で接着することによりヘッド
とシャフトとの接合を行っている。この場合、閉塞ボア
構造のヘッドではシャフト挿入孔の軸長が長く、ヘッド
とシャフトとの接着スパンが長いため、シャフト外周面
とシャフト挿入孔内周壁との接着によってヘッドとシャ
フトとを強固に固定することができ、スイング時にシャ
フトからヘッドが外れるヘッド抜け事故を防止すること
が可能である。In the former head having a closed bore structure, the head and the shaft are joined by bonding an outer peripheral surface of a tip portion of the shaft inserted into the shaft insertion hole and an inner peripheral wall of the shaft insertion hole with an adhesive. . In this case, in the head with the closed bore structure, the shaft length of the shaft insertion hole is long and the bonding span between the head and the shaft is long, so the head and the shaft are firmly fixed by bonding the outer peripheral surface of the shaft and the inner peripheral wall of the shaft insertion hole. The head can be prevented from coming off from the shaft during the swing.
【０００４】これに対し、後者のスルーボア構造のヘッ
ドではシャフト挿入孔の軸長が短く、ヘッドとシャフト
との接着スパンが短いので、シャフト外周面とシャフト
挿入孔内周壁とを接着するだけではヘッドとシャフトと
を十分に強固に固定することが難しい。そのため、スル
ーボア構造のヘッドを用いたゴルフクラブでは、従来、
下記に述べるヘッドとシャフトとの接合構造を採用する
ことによってヘッド抜け事故の防止を図っている。On the other hand, in the latter head having the through bore structure, the shaft length of the shaft insertion hole is short and the bonding span between the head and the shaft is short. It is difficult to fix the shaft and the shaft sufficiently firmly. Therefore, in golf clubs using a head with a through-bore structure,
By adopting a joint structure between the head and the shaft described below, the head is prevented from coming off.
【０００５】すなわち、図４に示すように、シャフト５
２の先端部に複数（本例では４本）の割り（切り込み）
５４を形成するとともに、ヘッド５６のホゼル部５８に
設ける貫通孔状のシャフト挿入孔６０を下方に向かうに
したがい漸次大径となる逆テーパ状に加工する。そし
て、シャフト５２の先端部外周面及びシャフト挿入孔６
０の内周壁に接着剤を塗布し、シャフト５２先端部をシ
ャフト挿入孔６０内に挿入した後、外周面に接着剤を塗
布したテーパピン６２をシャフト挿入孔６０の下側開口
部からシャフト５２の中空部６４内に圧入する（図５参
照）。これにより、テーパピン６２でシャフト５２の先
端部を押し広げて逆テーパ状とし、その外周面をシャフ
ト挿入孔６０の内周壁にほぼ密着させた状態で接着剤を
硬化させるもので、これによってシャフト５２の先端外
径をシャフト挿入孔６０の上側開口部内径より大きくし
てシャフト５２がシャフト挿入孔６０から抜けることを
防止するものである。That is, as shown in FIG.
Multiple (4 in this example) splits (cuts) at the tip of 2
In addition to forming 54, a through-hole-shaped shaft insertion hole 60 provided in the hosel portion 58 of the head 56 is formed into an inversely tapered shape having a gradually increasing diameter as it goes downward. The outer peripheral surface of the tip of the shaft 52 and the shaft insertion hole 6
After the adhesive is applied to the inner peripheral wall of the shaft 52 and the tip of the shaft 52 is inserted into the shaft insertion hole 60, the taper pin 62 with the adhesive applied to the outer peripheral surface is attached to the shaft 52 through the lower opening of the shaft insertion hole 60. Press-fit into the hollow portion 64 (see FIG. 5). Thus, the tip of the shaft 52 is pushed and spread by the taper pin 62 to form an inversely tapered shape, and the adhesive is cured while the outer peripheral surface of the shaft 52 is almost in close contact with the inner peripheral wall of the shaft insertion hole 60. Is made larger than the inner diameter of the upper opening of the shaft insertion hole 60 to prevent the shaft 52 from falling out of the shaft insertion hole 60.
【０００６】[0006]
【発明が解決しようとする課題】しかし、図４、５に示
したヘッドとシャフトとの接合構造では、シャフトの先
端部に複数の割りを形成するため、シャフト先端部の構
造的な強度が弱くなり、シャフト折損事故が生じ易くな
るという問題が生じていた。すなわち、スルーボア構造
のヘッドを用いたゴルフクラブでは、ヘッドとシャフト
との接合部の長さが短く、この短い部分でインパクト時
の衝撃を受け止めているため、該接合部におけるヘッド
とシャフトとの接合強度を高めるために図４、５に示し
た接合構造を採用しているものであるが、その結果ヘッ
ドとの接合部分でシャフトの構造的強度が低下し、シャ
フト折損のおそれが生じているものであった。However, in the joint structure of the head and the shaft shown in FIGS. 4 and 5, since a plurality of splits are formed at the tip of the shaft, the structural strength of the tip of the shaft is low. Thus, there has been a problem that a shaft breakage accident is likely to occur. That is, in a golf club using a head having a through-bore structure, the length of the joint between the head and the shaft is short, and the impact at the time of impact is received at this short portion. The joint structure shown in FIGS. 4 and 5 is adopted to increase the strength, but as a result, the structural strength of the shaft is reduced at the joint with the head, and the shaft may be broken. Met.
【０００７】本発明は、上記事情に鑑みてなされたもの
で、シャフト挿入孔の軸長が短く、ヘッドとシャフトと
の接着スパンが短い場合でも、シャフト先端部の構造的
強度を低下させるような加工を行うことなくヘッドとシ
ャフトとの接合強度を向上させることができ、これによ
りヘッドとシャフトとを強固に固定してヘッド抜け事
故、シャフト折損事故の防止を図ることが可能なヘッド
とシャフトとの接合構造を提供することを目的とする。The present invention has been made in view of the above circumstances, and is intended to reduce the structural strength of the shaft tip even when the shaft length of the shaft insertion hole is short and the bonding span between the head and the shaft is short. It is possible to improve the joint strength between the head and the shaft without performing processing, thereby firmly fixing the head and the shaft to prevent the head coming off accident and the shaft breakage accident. It is an object of the present invention to provide a joint structure.
【０００８】[0008]
【課題を解決するための手段】本発明者は、ヘッドとシ
ャフトとの接着スパンが短い場合でもこれらの接着部の
面積を大きくすることによってヘッドとシャフトとの接
合力を高めることが可能であることに想到し、かかる接
着部の面積の増大手段について種々検討を行った結果本
発明をなすに至ったもので、本発明は、底壁体の上面中
央部にピン状突起が突設されてなる固定部材の底壁体を
クラブヘッドのシャフト挿入孔の下側開口部周壁に固定
することにより、シャフト挿入孔内にピン状突起が挿入
された状態でシャフト挿入孔の下側開口部が前記底壁体
で閉塞されているとともに、シャフト挿入孔に挿入した
シャフトの中空部に前記ピン状突起が挿入され、シャフ
ト外周面とシャフト挿入孔内周壁及びシャフト内周面と
ピン状突起外周面とがそれぞれ接着剤により接着されて
いることを特徴とするゴルフクラブのヘッドとシャフト
との接合構造を提供する。The present inventor can increase the bonding strength between the head and the shaft by enlarging the area of these bonded portions even when the bonding span between the head and the shaft is short. In particular, the present inventors have made various studies on the means for increasing the area of the bonding portion, and have come to the present invention.In the present invention, a pin-shaped projection is provided at the center of the upper surface of the bottom wall. By fixing the bottom wall of the fixing member to the lower peripheral surface of the lower opening of the shaft insertion hole of the club head, the lower opening of the shaft insertion hole is inserted with the pin-like projection inserted into the shaft insertion hole. The pin-shaped projection is inserted into the hollow portion of the shaft inserted into the shaft insertion hole while being closed by the bottom wall body, and the outer peripheral surface of the shaft and the inner peripheral wall of the shaft insertion hole, and the inner peripheral surface of the shaft and the outer peripheral surface of the pin-shaped projection are inserted. There is provided a joint structure between the head and shaft of a golf club, characterized in that it is adhered by the respective adhesive.
【０００９】この場合、本発明では、シャフト挿入孔内
のピン状突起の上端は、シャフト挿入孔の上側開口面よ
り５ｍｍ下方から３０ｍｍ上方の間に位置していること
が好ましく、これによりヘッドとシャフトとの接着部の
面積を十分に大きくすることができる。In this case, in the present invention, it is preferable that the upper end of the pin-like projection in the shaft insertion hole is located between 5 mm and 30 mm above the upper opening surface of the shaft insertion hole. The area of the bonding portion with the shaft can be made sufficiently large.
【００１０】本発明の接合構造では、シャフト外周面と
シャフト挿入孔内周壁とを接着するのみならず、シャフ
ト挿入孔の底壁上面中央部にピン状突起を突設し、この
ピン状突起外周面とシャフト内周面とを接着しているの
で、シャフト外周面とシャフト挿入孔内周壁のみを接着
する場合に比べてシャフトとヘッドとの接着部の面積が
著しく増大し、その結果シャフトとヘッドとの接合力が
大きく向上する。したがって、ヘッドとシャフトとの接
着スパンが短い場合でもこれらを強固に固定することが
でき、ヘッド抜け事故を防止することができる。また、
本発明の接合構造では、シャフト先端部に特殊な加工を
施す必要がないので、シャフト先端部の構造的強度は低
下することがない。したがって、シャフト先端部の強度
低下に起因するシャフト折損事故を防止することができ
る。In the joint structure according to the present invention, not only is the outer peripheral surface of the shaft and the inner peripheral wall of the shaft insertion hole adhered, but also a pin-shaped projection is provided at the center of the upper surface of the bottom wall of the shaft insertion hole. Since the surface and the inner peripheral surface of the shaft are adhered to each other, the area of the joint between the shaft and the head is significantly increased as compared with the case where only the outer peripheral surface of the shaft and the inner peripheral wall of the shaft insertion hole are adhered. Greatly improves the bonding force with the metal. Therefore, even when the bonding span between the head and the shaft is short, they can be firmly fixed, and a head dropout accident can be prevented. Also,
In the joint structure of the present invention, it is not necessary to perform special processing on the shaft tip, so that the structural strength of the shaft tip does not decrease. Therefore, it is possible to prevent a shaft breakage accident caused by a decrease in the strength of the shaft tip.
【００１１】また、本発明の接合構造では、シャフト挿
入孔の下側開口部周壁に固定部材の底壁体を固定する。
この場合、固定部材はシャフト挿入孔の下側開口部周壁
との螺合、接着剤による接着、溶接、ネジ止め等の任意
手段によってヘッドに固定するものであり、本発明では
このように固定部材をヘッドに固定するため、シャフト
が固定部材と共にヘッドから外れることがない。In the joint structure according to the present invention, the bottom wall of the fixing member is fixed to the peripheral wall of the lower opening of the shaft insertion hole.
In this case, the fixing member is fixed to the head by any means such as screwing with the lower opening peripheral wall of the shaft insertion hole, bonding with an adhesive, welding, screwing, or the like. Is fixed to the head, so that the shaft does not come off the head together with the fixing member.
【００１２】本発明において、シャフト挿入孔、ピン状
突起の寸法に限定はないが、シャフト挿入孔の内径はシ
ャフト先端部の外径以上とするものであり、通常、シャ
フト先端部のシャフト挿入孔への挿入を容易にするため
に［シャフト先端部外径＋０．１ｍｍ］〜［シャフト先
端部外径＋０．２ｍｍ］とすることが適当である。ま
た、シャフト挿入孔の軸長は、スルーボア構造のヘッド
の場合、通常２０〜３０ｍｍ程度である。In the present invention, the dimensions of the shaft insertion hole and the pin-shaped projection are not limited, but the inner diameter of the shaft insertion hole is larger than the outer diameter of the shaft tip. In order to facilitate insertion into the shaft, it is appropriate to set [shaft tip outer diameter + 0.1 mm] to [shaft tip outer diameter + 0.2 mm]. The shaft length of the shaft insertion hole is usually about 20 to 30 mm in the case of a head having a through-bore structure.
【００１３】ピン状突起の外径は、シャフト先端中空部
の内径以下とするものであり、通常、ピン状突起のシャ
フト中空部への挿入を容易にするために［シャフト中空
部内径−０．１５ｍｍ］〜［シャフト中空部内径−０．
１ｍｍ］とすることが適当である。また、ピン状突起の
長さは、シャフト挿入孔内のピン状突起の上端がシャフ
ト挿入孔の上側開口面より５ｍｍ下方に位置する長さか
ら３０ｍｍ上方に位置する長さの範囲内で決定すること
が適当である。ピン状突起が上記範囲より短いとヘッド
とシャフトとの接着部の面積が十分に大きくならないこ
とがある。なお、ピン状突起の上端は、シャフト挿入孔
の上側開口面と同レベル又はそれより上方にあることが
より好ましい。テーパがついたマンドレルで製造したシ
ャフトでは、その内面とピン状突起との接触面積はそれ
ほど大きくならないので、むやみにピン状突起を長くす
るのは好ましくない。したがって、ピン状突起は上記範
囲の長さとすることが好ましい。ピン状突起の長さは、
スルーボア構造のヘッドの場合、通常２０〜６０ｍｍ程
度である。The outer diameter of the pin-shaped projection is set to be equal to or less than the inner diameter of the hollow part at the tip of the shaft. Usually, in order to facilitate the insertion of the pin-shaped projection into the hollow part of the shaft, [the inner diameter of the hollow part of the shaft minus 0. 15 mm] to [shaft hollow portion inner diameter-0.
1 mm] is appropriate. The length of the pin-shaped projection is determined within a range in which the upper end of the pin-shaped projection in the shaft insertion hole is located 30 mm above the length located 5 mm below the upper opening surface of the shaft insertion hole. Is appropriate. If the pin-like projection is shorter than the above range, the area of the bonding portion between the head and the shaft may not be sufficiently large. It is more preferable that the upper end of the pin-shaped projection is at the same level as or higher than the upper opening surface of the shaft insertion hole. In a shaft manufactured with a tapered mandrel, the contact area between the inner surface of the shaft and the pin-shaped protrusion is not so large, and it is not preferable to increase the length of the pin-shaped protrusion. Therefore, it is preferable that the length of the pin-shaped projection is within the above range. The length of the pin projection is
In the case of a head having a through-bore structure, it is usually about 20 to 60 mm.
【００１４】[0014]
【発明の実施の形態】第１実施形態例 図１及び図２は本発明に係る接合構造の一実施形態例を
示すもので、本例はスルーボア構造のヘッドを用いた例
である。図１、２において、２はヘッド、４はシャフ
ト、６は固定部材を示す。ヘッド２のホゼル部８には、
内部空間部がほぼ円柱状をなすシャフト挿入孔１０がヘ
ッド２を貫通して形成されており、このシャフト挿入孔
１０の底部はヘッド２の下側に開口している。また、シ
ャフト挿入孔１０にはその下端部に大径部１２が設けら
れ、該大径部１２の周壁部にネジ山１４が加工されてい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment FIGS. 1 and 2 show one embodiment of a joint structure according to the present invention, and this embodiment is an example using a head having a through-bore structure. 1 and 2, reference numeral 2 denotes a head, 4 denotes a shaft, and 6 denotes a fixing member. In the hosel part 8 of the head 2,
A shaft insertion hole 10 whose inner space is substantially cylindrical is formed through the head 2, and the bottom of the shaft insertion hole 10 is opened below the head 2. The shaft insertion hole 10 is provided with a large-diameter portion 12 at a lower end thereof, and a thread 14 is formed on a peripheral wall portion of the large-diameter portion 12.
【００１５】固定部材６は、下面にネジ溝を有する円盤
状の底壁体１６の上面中央部に円柱型のピン状突起１８
が一体に突設されたものである。底壁体１６の外周面に
はネジ山２０が加工されており、このネジ山２０を前記
大径部１２のネジ山１４に螺合して底壁体１６をシャフ
ト挿入孔１０の下側開口部周壁に固定することにより、
シャフト挿入孔１０内にピン状突起１８が挿入された状
態でシャフト挿入孔１０の下側開口部が底壁体１６で閉
塞されるようになっている。The fixing member 6 has a cylindrical pin-shaped projection 18 at the center of the upper surface of a disk-shaped bottom wall 16 having a thread groove on the lower surface.
Are protruded integrally. A thread 20 is formed on the outer peripheral surface of the bottom wall body 16, and the thread 20 is screwed into the thread 14 of the large-diameter portion 12 so that the bottom wall body 16 is opened at the lower opening of the shaft insertion hole 10. By fixing to the peripheral wall,
The lower opening of the shaft insertion hole 10 is closed by the bottom wall 16 with the pin-shaped projection 18 inserted into the shaft insertion hole 10.
【００１６】シャフト４はややテーパ状をなした長尺円
筒状のものであり、シャフト挿入孔１０の内径はシャフ
ト４先端部の外径よりも０．１〜０．２ｍｍ程度長く形
成されている。また、ピン状突起１８の外径はシャフト
４先端中空部の内径よりも０．１〜０．２ｍｍ程度短く
形成されている。ピン状突起１８の長さは、固定部材６
をヘッド２に固定した状態において、該突起１８の上端
高さがシャフト挿入孔１０の上側開口面高さとほぼ一致
する長さに形成されている。The shaft 4 is a slightly tapered long cylindrical shape, and the inner diameter of the shaft insertion hole 10 is formed to be about 0.1 to 0.2 mm longer than the outer diameter of the tip of the shaft 4. . The outer diameter of the pin-like projection 18 is formed to be shorter by about 0.1 to 0.2 mm than the inner diameter of the hollow portion at the tip end of the shaft 4. The length of the pin-like projection 18 is
Is fixed to the head 2, the height of the upper end of the projection 18 is substantially equal to the height of the upper opening surface of the shaft insertion hole 10.
【００１７】本例では、固定部材６を前記のようにして
螺合によりヘッド２に固定する。そして、シャフト４の
先端部外周面及び内周面、シャフト挿入孔１０の内周
壁、ピン状突起１８の外周面にそれぞれ接着剤を塗布
し、シャフト４先端部をシャフト挿入孔１０内に挿入
し、ピン状突起１８をシャフト４の先端中空部５に挿入
する。この状態で接着剤を硬化させることにより、シャ
フト４外周面とシャフト挿入孔１０内周壁及びシャフト
４内周面とピン状突起１８外周面とをそれぞれ接着剤に
よって接着した状態でヘッド２とシャフト４とを接合す
るものである。なお、ヘッド２への固定部材６やシャフ
ト４の取付手順等は適宜変更して差し支えない。In this embodiment, the fixing member 6 is fixed to the head 2 by screwing as described above. Then, an adhesive is applied to the outer peripheral surface and inner peripheral surface of the distal end portion of the shaft 4, the inner peripheral wall of the shaft insertion hole 10, and the outer peripheral surface of the pin-shaped projection 18, respectively, and the distal end portion of the shaft 4 is inserted into the shaft insertion hole 10. Then, the pin-shaped projection 18 is inserted into the hollow end 5 of the shaft 4. By hardening the adhesive in this state, the head 2 and the shaft 4 are bonded in a state in which the outer peripheral surface of the shaft 4 and the inner peripheral wall of the shaft insertion hole 10 and the inner peripheral surface of the shaft 4 and the outer peripheral surface of the pin-shaped projection 18 are respectively adhered. Is to be joined. The procedure for attaching the fixing member 6 and the shaft 4 to the head 2 may be appropriately changed.
【００１８】第２実施形態例 図３は本発明に係る接合構造の他の実施形態例を示すも
ので、本例もスルーボア構造のヘッドを用いた例であ
る。図３において、図１、２と同一構成の部分には同一
参照符号を付してその説明を省略する。ただし、本例で
はヘッド２及び固定部材６にネジ山やネジ溝は形成され
ておらず、シャフト挿入孔１０の下端部に大径部は設け
られていない。また、ピン状突起１８の長さは、その上
端がシャフト挿入孔１０の上側開口面より１０ｍｍ程度
上方に位置する長さに形成されている。 Second Embodiment FIG. 3 shows another embodiment of the bonding structure according to the present invention, and this embodiment is also an example using a head having a through-bore structure. 3, parts having the same configurations as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof will be omitted. However, in this example, no thread or thread groove is formed in the head 2 and the fixing member 6, and no large-diameter portion is provided at the lower end of the shaft insertion hole 10. Further, the length of the pin-shaped projection 18 is formed such that its upper end is located about 10 mm above the upper opening surface of the shaft insertion hole 10.
【００１９】本例では、固定部材６の底壁体１６の外周
面を接着剤による接着又は溶接によってシャフト挿入孔
１０の下側開口部周壁に固定することにより、シャフト
挿入孔１０内にピン状突起１８を挿入した状態でシャフ
ト挿入孔１０の下側開口部を底壁体１６で閉塞する。そ
して、シャフト４の先端部外周面及び内周面、シャフト
挿入孔１０の内周壁、ピン状突起１８の外周面にそれぞ
れ接着剤を塗布し、シャフト４先端部をシャフト挿入孔
１０内に挿入し、ピン状突起１８をシャフト４の先端中
空部５に挿入する。この状態で接着剤を硬化させること
により、実施形態例１と同様にヘッド２とシャフト４と
が接合されるものである。In this embodiment, the outer peripheral surface of the bottom wall 16 of the fixing member 6 is fixed to the lower peripheral wall of the shaft insertion hole 10 by bonding or welding with an adhesive, so that a pin-like shape is formed in the shaft insertion hole 10. With the projection 18 inserted, the lower opening of the shaft insertion hole 10 is closed by the bottom wall 16. Then, an adhesive is applied to the outer peripheral surface and the inner peripheral surface of the distal end portion of the shaft 4, the inner peripheral wall of the shaft insertion hole 10, and the outer peripheral surface of the pin-shaped projection 18, respectively, and the distal end portion of the shaft 4 is inserted into the shaft insertion hole 10. Then, the pin-shaped projection 18 is inserted into the hollow end 5 of the shaft 4. By curing the adhesive in this state, the head 2 and the shaft 4 are joined as in the first embodiment.
【００２０】[0020]
【発明の効果】本発明の接合構造では、シャフト外周面
とシャフト挿入孔内周壁とを接着するのみならず、シャ
フト挿入孔内に存するピン状突起の外周面とシャフト内
周面とを接着しているので、シャフト外周面とシャフト
挿入孔内周壁のみを接着する場合に比べてシャフトとヘ
ッドとの接着部の面積が著しく増大し、その結果シャフ
トとヘッドとの接合力が大きく向上する。また、本発明
の接合構造では、シャフト先端部に特殊な加工を施すこ
となくヘッドとシャフトとを接合できるので、シャフト
先端部の構造的強度が低下することを防ぐことができ
る。したがって、本発明によれば、ヘッドとシャフトと
の接着スパンが短い場合でも、シャフト先端部の構造的
強度を低下させることなくヘッドとシャフトとを強固に
固定することができ、ヘッド抜け事故、シャフト折損事
故を防止することが可能である。According to the joint structure of the present invention, not only is the outer peripheral surface of the shaft and the inner peripheral wall of the shaft insertion hole adhered, but also the outer peripheral surface of the pin-shaped projection existing in the shaft insertion hole and the inner peripheral surface of the shaft are adhered. Therefore, the area of the bonded portion between the shaft and the head is significantly increased as compared with the case where only the outer peripheral surface of the shaft and the inner peripheral wall of the shaft insertion hole are bonded, and as a result, the joining force between the shaft and the head is greatly improved. Further, in the joint structure of the present invention, the head and the shaft can be joined without performing special processing on the shaft tip, so that the structural strength of the shaft tip can be prevented from lowering. Therefore, according to the present invention, even when the bonding span between the head and the shaft is short, the head and the shaft can be firmly fixed without lowering the structural strength of the tip of the shaft. It is possible to prevent breakage accidents.
【図１】本発明の第１実施形態例に係るヘッドとシャフ
トとの接合構造に用いる部材を示す説明図である。FIG. 1 is an explanatory view showing members used for a joint structure between a head and a shaft according to a first embodiment of the present invention.
【図２】同接合構造を示す断面図である。FIG. 2 is a sectional view showing the joint structure.
【図３】本発明の第２実施形態例に係るヘッドとシャフ
トとの接合構造を示す断面図である。FIG. 3 is a sectional view showing a joint structure between a head and a shaft according to a second embodiment of the present invention.
【図４】従来のヘッドとクラブとの接合に用いる部材を
示す説明図である。FIG. 4 is an explanatory view showing members used for joining a conventional head and a club.
【図５】従来のヘッドとクラブとの接合構造の一例を示
す断面図である。FIG. 5 is a cross-sectional view showing an example of a conventional joint structure between a head and a club.
２ ヘッド ４ シャフト ６ 固定部材 ８ ホゼル部 １０ シャフト挿入孔 １２ 大径部 １４ ネジ山 １６ 底壁体 １８ ピン状突起 ２０ ネジ山 ２２ 底壁 2 head 4 shaft 6 fixing member 8 hosel part 10 shaft insertion hole 12 large diameter part 14 screw thread 16 bottom wall body 18 pin-shaped projection 20 screw thread 22 bottom wall
Claims (2)
構造のホゼル部を有するゴルフクラブヘッドとシャフト
との接合構造であって、底壁体の上面中央部にピン状突
起が突設されてなる固定部材の底壁体をクラブヘッドの
シャフト挿入孔の下側開口部周壁に固定することによ
り、シャフト挿入孔内にピン状突起が挿入された状態で
シャフト挿入孔の下側開口部が前記底壁体で閉塞されて
いるとともに、シャフト挿入孔に挿入したシャフトの中
空部に前記ピン状突起が挿入され、シャフト外周面とシ
ャフト挿入孔内周壁及びシャフト内周面とピン状突起外
周面とがそれぞれ接着剤により接着されていることを特
徴とするゴルフクラブのヘッドとシャフトとの接合構
造。1. A through bore having a short axial length of a shaft insertion hole.
Golf club head and shaft having hosel portion of structure
By fixing the bottom wall of a fixing member having a pin-shaped projection projecting from the center of the top surface of the bottom wall to the lower opening peripheral wall of the shaft insertion hole of the club head, The lower opening of the shaft insertion hole is closed by the bottom wall in a state where the pin-shaped projection is inserted into the shaft insertion hole, and the pin-shaped projection is inserted into the hollow portion of the shaft inserted into the shaft insertion hole. A joint structure between a golf club head and a shaft, wherein the outer peripheral surface of the shaft, the inner peripheral wall of the shaft insertion hole, and the inner peripheral surface of the shaft and the outer peripheral surface of the pin-shaped projection are respectively bonded by an adhesive.
が、シャフト挿入孔の上側開口面より５ｍｍ下方から３
０ｍｍ上方の間に位置している請求項１に記載のゴルフ
クラブのヘッドとシャフトとの接合構造。2. An upper end of a pin-like projection in a shaft insertion hole is positioned 3 mm from 5 mm below an upper opening surface of the shaft insertion hole.
The joint structure between the head and the shaft of the golf club according to claim 1, which is located between 0 mm above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30209295A JP3163240B2 (en) | 1995-10-26 | 1995-10-26 | Joint structure between head and shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30209295A JP3163240B2 (en) | 1995-10-26 | 1995-10-26 | Joint structure between head and shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09117535A JPH09117535A (en) | 1997-05-06 |
| JP3163240B2 true JP3163240B2 (en) | 2001-05-08 |
Family
ID=17904837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30209295A Expired - Fee Related JP3163240B2 (en) | 1995-10-26 | 1995-10-26 | Joint structure between head and shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3163240B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002346006A (en) * | 2001-05-28 | 2002-12-03 | Bridgestone Sports Co Ltd | Golf club head and golf club set |
| JP5334735B2 (en) * | 2009-07-31 | 2013-11-06 | エムアールシーコンポジットプロダクツ株式会社 | Golf club shaft mounting member and golf club manufacturing method using the mounting member |
| JP5463864B2 (en) | 2009-11-13 | 2014-04-09 | ブリヂストンスポーツ株式会社 | Golf club head and golf club |
| JP5387351B2 (en) | 2009-11-13 | 2014-01-15 | ブリヂストンスポーツ株式会社 | Golf club head and golf club |
| US8715104B1 (en) * | 2011-03-10 | 2014-05-06 | Callaway Golf Company | Adjustable golf club shaft and hosel assembly |
| KR102396389B1 (en) * | 2021-03-08 | 2022-05-09 | 백창현 | Park golf club with excellent coupling durability between head and shaft and combining method |
| KR102410010B1 (en) * | 2021-06-04 | 2022-06-22 | 백창현 | Copper palte bonding method of park golf and park golf club |
| KR102648757B1 (en) * | 2022-01-17 | 2024-03-15 | 백창현 | Park golf club with excellent coupling durability between head and shaft |
| KR102440638B1 (en) * | 2022-02-24 | 2022-09-05 | 백창현 | Park golf club with excellent coupling durability between head and shaft |
-
1995
- 1995-10-26 JP JP30209295A patent/JP3163240B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09117535A (en) | 1997-05-06 |
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