JPH10127830A - Golf club head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a golf club head which enables obtaining of stable directivity and higher trajectory in the hitting of a ball without being affected by the characteristic of a shaft nor without giving rigid touch to a head body and the shaft and moreover, increase in the angle of loft of the club head body with a shaft insertion hole formed at a crown part. SOLUTION: A shaft insertion hole 7 of a shaft 4 is formed at a crown part 3 and a shaft tip support member 8 (hosel) which is set to face the shaft insertion part 7 formed at the crown part 3 while being separated from the crown part 3 is integrally formed on an internal wall surface 5a of a sole part 5 sticking out of the shaft insertion hole 7. The shaft tip support member 8 is made up of a hollow cylindrical shaft insertion part 8a and a plate-shaped base end part 8b which is fixed integrally on an internal wall surface 5a of the sole part 5 by welding or the like. The plate-shaped base end part 8b is so arranged as to allow a head body 1 to oscillate toward the side of a face part 6 and a back side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow golf club head made of metal such as a wood golf club head or an iron golf club head, and more particularly, to a fixing fulcrum between a club head body and a shaft. By providing it on the hosel side, the head itself can be deformed during swinging and at the time of ball impact (when hitting a ball), and a hit ball with a high trajectory can be obtained, and breakage of the shaft and the like can be effectively prevented. The present invention relates to a golf club head capable of increasing a loft angle and making it easier to raise a ball by deformation of a head body at the time.

[0002]

2. Description of the Related Art Conventionally, a hollow golf club head made of metal such as a wood golf club head (or an iron golf club head) has a hosel portion 2 of a head body 1 having a crown portion of the head body 1 as shown in FIG. The hosel portion 2 is integrally formed with the hosel portion 3, and is formed so as to project outward from the crown portion 3 or into the head body 1 so as to support and fix the distal end side of the shaft 4.

[0003]

That is, since the conventional hosel portion 2 is a so-called completely rigid body having an integral structure connected to the crown portion 3 of the head main body 1, the hosel portion 2 can be used when swinging a golf club. , At ball impact (when hitting the ball)
Has a structure in which the deformation of the head body 1 hardly occurs.

Accordingly, the dynamic behavior of a golf club such as a real loft and a face angle is not related to the head body itself, which is a completely rigid body, but the characteristics of the shaft (for example, flexure, torsion, elasticity of the shaft). In fact, it was not possible to obtain a sense of stability in the directionality and height direction of a ball that was greatly affected by force and the like. In addition, when the ball is hit with a conventional golf club, stress concentrates on the upper end of the hosel portion 2 protruding outward from the crown portion 3, causing the shaft 4 to break.

The present invention has been devised in view of such a conventional problem, and is not affected by the characteristics of the shaft, and has a stable directionality of a hit ball without imparting rigidity between the head body and the shaft. And a high trajectory can be obtained.In addition, the loft angle of the club head body is increased by the shape of the shaft insertion hole formed in the crown portion, and the loft angle is increased by deformation of the head body during swinging and hitting. It is an object of the present invention to provide a golf club head that can easily raise a ball.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, a shaft tip is provided inside a club head body from a sole portion side toward a shaft insertion hole formed in a crown portion and separated from the crown portion. The support member is formed integrally with the sole portion, the base end of the shaft tip support member is formed in a plate shape, and the plate body is swung toward the face side and the back side by the head body. The gist is that they are arranged so as to be movable.

[0007] A rubber-like elastic supporting member for elastically supporting the inserted shaft is provided at a peripheral portion of the shaft insertion hole formed in the crown portion, and a plate-like base end of the shaft tip supporting member is a sole portion. The gist of the invention is that the base end portion is made of an elastic material having a strength that does not break during elastic deformation. The present invention is configured as described above, and in a metal hollow golf club head,
The shaft tip support member, that is, the hosel part is erected on the inner wall surface of the sole part toward the inside of the hollow part, and is separated from the crown part so as not to have a rigid feeling between the head body and the shaft. At the time of swinging a golf club or impacting a ball (hitting a ball), the head itself can be deformed and hit without being affected by the characteristics of the shaft (for example, bending, twisting, and elasticity of the shaft). As a result, stable directionality and high trajectory of the hit ball can be obtained.

Further, the base end of the shaft tip support member is formed in a plate shape, and the plate-shaped base end is disposed so that the head body can swing toward the face side and the back side. By doing so, while increasing the loft angle of the club head and making it easier to raise the ball when hitting,
It can hit a stable ball.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The same components as those of the conventional example are denoted by the same reference numerals, and description thereof will be omitted. FIG. 1 is a vertical front view of a head main body 1 of a wood golf club showing a first embodiment of the present invention, FIG. 2 is a vertical side view of FIG. 1, and the head main body 1 has a crown 3 and a face 6. The sole portion 5 is hollow and integrally formed of a metal material (for example, titanium or a titanium alloy).

A shaft insertion hole 7 for the shaft 4 is formed in the crown portion 3 and an inner wall surface 5a of the sole portion 5 is formed.
The shaft tip supporting member 8 (hosel) is integrally formed with the shaft insertion hole 7 formed in the crown portion 3 and separated from the crown portion 3 so as to protrude from the shaft insertion hole 7. . As shown in FIGS. 1 and 2, the shaft distal end support member 8 is a plate-like base end integrally fixed to a hollow cylindrical shaft insertion portion 8 a and an inner wall surface 5 a of the sole portion 5 by welding or the like. The plate-shaped base portion 8b is provided so that the head body 1 can swing toward the face portion 6 and the back side 1b.

That is, the thickness of the base end portion 8b is disposed toward the toe side 1c and the heel side 1d of the head body 1, so that the shaft tip support member 8 or the head body 1 can swing when the golf club swings. The ball swings relatively toward the face portion 6 and the back side 1b to increase the loft angle α of the club head, thereby making it easier to raise the ball when hitting a ball. That is, the deformation of the head body during the swing and the hitting of the ball allows the loft angle to be increased and the ball to be raised more easily.

The plate-like base end portion 8b of the shaft tip support member 8 is formed integrally with the sole portion 5 and is always subjected to repeated bending, so that an elastic material such as a leaf spring or the like having a strength that does not break during elastic deformation. It is preferable to constitute by. A shaft 4 is provided at the periphery of the elongated hole 7.
And a rubber-like elastic support member 9 for effectively preventing the shaft tip support member 8 from being in contact with the peripheral edge of the shaft insertion hole 7 and being damaged.
Preferably, a recess is provided so as to engage with the peripheral edge of the shaft insertion hole 7.

The rubber-like elastic support member 9 can also cover the gap between the shaft tip support member 8 and the shaft insertion hole 7, whereby the hollow portion 1 of the head body 1 can be covered.
It is possible to effectively prevent dust and water from entering into a, prevent wind noise at the time of swing, and improve hitting sound to improve feeling.

As described above, in the metal hollow golf club head, the shaft tip supporting member 8 is connected to the sole portion 5.
The head body 1 and the shaft 4 can be configured without a rigid feeling by being erected toward the inner side of the hollow portion 1a on the inner wall surface 5a and separated from the crown portion 3 as a result. When the club swings,
At the time of ball impact (at the time of hitting the ball), the shaft 4 can be supported by the shaft tip support member 8 formed integrally with the sole portion 5.

Therefore, when the golf club swings,
At the time of a ball impact (at the time of hitting the ball), as shown in FIG. 3, the head main body 1 itself is moved as indicated by an arrow X without being affected by the characteristics of the shaft 4 (for example, bending, twisting, elastic force, etc.). Thus, the ball can be hit by deforming the ball to a stable shape, and as a result, a stable directionality and a high trajectory of the ball can be obtained.

The plate-like base end portion 8b of the shaft tip support member 8 is provided so that the head body 1 can swing toward the face portion 6 and the back side 1b. As a result of the thickness of the portion 8b being arranged toward the toe side 1c and the heel side 1d of the head main body 1, the shaft tip support member 8 or the head main body 1 is connected to the face 6 side and the back when the golf club swings. The club head relatively swings toward the side 1b, and the loft angle α of the club head is increased by deformation of the head body during swinging and hitting, so that the ball can be lifted more easily when hitting.

Further, since a rubber-like elastic support member 9 for elastically supporting the shaft 4 and the shaft tip support member 8 is provided at a peripheral portion of the shaft insertion hole 7 formed in the crown portion 3, a swing of the golf club is provided. At this time, it is possible to effectively prevent the shaft 4 from being broken at the time of ball impact. In the above embodiment, the head body 1 of the wood golf club has been described, but the present invention can be applied to a club head of an iron golf club.

[0018]

As described above, according to the present invention, a shaft tip support member separated from the crown portion toward the shaft insertion hole formed in the crown portion from the sole portion side is provided inside the club head body. The shaft tip support member is formed integrally, and the base end of the shaft tip support member is formed in a plate shape. The plate-shaped base end is arranged so that the head body can swing toward the face side and the back side. As a result, the following excellent effects can be obtained. . The ball can be hit by deforming the head body itself without being affected by the characteristics of the shaft (for example, flexure, torsion, elastic force, etc. of the shaft). As a result, stable directionality and high trajectory of the hit ball can be obtained. . . When swinging a golf club or impacting a ball (hitting a ball), the head body itself can be deformed and hit without being affected by the characteristics of the shaft (for example, bending, twisting, and elasticity of the shaft). As a result, a stable direction and high trajectory of the hit ball can be obtained. . Since the plate-shaped base end of the shaft tip support member is disposed so that the head body can swing toward the face portion side and the back side, the shaft tip support member or the head can be used when the golf club swings. The main body swings relatively toward the face side and the back side, and the deformation of the head body during swinging and hitting increases the loft angle of the club head so that the ball can be lifted more easily when hitting. Can be done. . Since a rubber-like elastic support member is provided on the periphery of the shaft insertion hole formed in the crown portion, when the golf club swings, the shaft can be effectively prevented from breaking at the time of ball impact, and in the hollow portion of the head body, It is possible to prevent foreign matters such as dust and water from entering, and furthermore, it is possible to prevent wind noise at the time of swing, to improve hitting sound, and to improve feeling.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view of a head main body of a wood golf club showing a first embodiment of the present invention.

FIG. 2 is a vertical sectional side view of FIG.

FIG. 3 is an explanatory diagram showing a deformed state of a head body when a golf club swings or a ball impacts.

FIG. 4 is a longitudinal sectional front view of a head body of a conventional wood golf club.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Head main body 1a Hollow part of head main body 1b Bag side 1c Toe side of head main body 1d Heel side 2 Hosel part 3 Crown part 4 Shaft 5 Sole part 5a Inner wall surface of sole part 6 Face part 7 Shaft insertion hole 7 8 Shaft tip support Member 8a Shaft insertion portion 8b Base end 9 Rubber-like elastic support member α Loft angle

Claims (3)

[Claims] 1. A metal hollow golf club head, wherein a shaft tip supporting member separated from the crown portion toward the shaft insertion hole formed in the crown portion from the sole portion side is provided inside the club head body. And the base end of the shaft tip support member is formed in a plate shape, and the plate-shaped base end is formed so that the head body can swing toward the face side and the back side. A golf club head, which is provided. 2. The golf club head according to claim 1, wherein a rubber-like elastic support member for elastically supporting the inserted shaft is provided at a peripheral portion of the shaft insertion hole formed in the crown portion. 3. A plate-like base end portion of said shaft tip support member is formed integrally with a sole portion, and said plate-like portion is made of an elastic material having a strength not to break during elastic deformation.
Or the golf club head according to claim 2.