JP3501909B2 - Golf club head - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow metal golf club head such as a wood golf club head or an iron golf club head. More specifically, the fixing fulcrum between the club head body and the shaft is provided in the club head body. By installing it on the hosel side, the head body itself can be deformed during swinging and during ball impact (at the time of hitting), and a high trajectory hit can be obtained, and shaft breakage etc. can be effectively prevented, and swinging and hitting The present invention relates to a golf club head in which the loft angle can be increased and the ball can be raised more easily by the deformation of the head main body.

[0002]

2. Description of the Related Art Conventionally, a hollow metal golf club head such as a wood golf club head (or an iron golf club head) has a hosel portion 2 of a head body 1 and a crown portion of the head body 1 as shown in FIG. 3, the hosel portion 2 is formed so as to project outward from the crown portion 3 or to project into the head body 1, and the tip side of the shaft 4 is supported and fixed.

[0003]

That is, since the conventional hosel portion 2 is an integral structure connected to the crown portion 3 of the head body 1 and is a so-called completely rigid body, when the golf club swings, At ball impact (when hit)
In the structure, the head body 1 is hardly deformed.

Therefore, the dynamic behavior of the golf club, such as real loft and face angle, is not related to the head body itself, which is a completely rigid body, but to the characteristics of the shaft (for example, bending, twisting, elasticity of the shaft). The reality is that the direction of the hit ball and the sense of stability in the height direction are not affected by the influence of the force). Further, when hitting a ball with a conventional golf club, stress concentrates on the upper end portion of the hosel portion 2 that protrudes outward from the crown portion 3, causing breakage of the shaft 4.

The present invention has been devised in view of such conventional problems, and is stable in the directionality of a hit ball without being affected by the characteristics of the shaft and without giving the head body and the shaft a sense of rigidity. In addition, the loft angle of the club head body can be increased by the shape of the shaft insertion hole formed in the crown portion, and the loft angle can be increased by the deformation of the head body during swinging and hitting. An object of the present invention is to provide a golf club head that can make it easier to raise a ball.

[0006]

In order to achieve the above object, the present invention has a shaft tip inside the club head main body, which extends from the sole side toward the shaft insertion hole formed in the crown part and is separated from the crown part. The support member is integrally formed with the sole portion, the base end portion of the shaft tip support member is formed in a plate shape, and the plate base end portion is shaken by the head body toward the face side and the back side. The gist is that it is arranged so that it can move.

[0007] periphery of the shaft insertion hole formed in the crown portion, the shaft tip supporting member is provided a rubber-like elastic support member for elastically supporting, also plate-shaped base end portion of the shaft tip support member, Formed integrally with the sole part,
The gist of the present 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 the metal hollow golf club head, the shaft tip supporting member, that is, the hosel portion is erected on the inner wall surface of the sole portion toward the inside of the hollow portion and separated from the crown portion. When the golf club is swinging or when it hits a ball (when hitting a ball), the head body and the shaft do not have rigidity.
In addition, the head body itself can be deformed to hit the ball without being affected by the characteristics of the shaft (for example, bending, twisting, elastic force of the shaft, etc.), and as a result, stable directionality of the hit ball and high trajectory can be obtained. Can be done.

Further, the base end portion of the shaft front end supporting member is formed in a plate shape, and the plate base end portion is arranged so that the head body can swing toward the face side and the back side. As a result, the loft angle of the club head can be increased to make it easier to raise the ball when hitting,
It is possible to hit a stable hit ball.

[0009]

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

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

That is, the plate thickness of the base end portion 8b is arranged toward the toe side 1c and the heel side 1d of the head main body 1, so that the shaft tip support member 8 or the head main body 1 during the swing of the golf club, By swinging relatively toward the face portion 6 side and the back side 1b, the loft angle α of the club head can be increased to make it easier to raise the ball when hitting. That is, the loft angle can be increased and the ball can be raised more easily by the deformation of the head main body during swinging and hitting.

The plate-shaped base end portion 8b of the shaft tip support member 8 is formed integrally with the sole portion 5 and is constantly subjected to repeated bending, so that an elastic material such as a leaf spring having strength not to break during elastic deformation. It is preferable that The shaft 4 is attached to the peripheral portion of the elongated shaft insertion hole 7.
Further, there is provided a rubber-like elastic support member 9 for effectively preventing the shaft tip support member 8 from coming into contact with the peripheral edge of the shaft insertion hole 7 and being damaged.
Is preferably provided with a recess 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 main body 1 can be covered.
It is possible to effectively prevent dust and water from entering the inside of a, prevent wind noise at the time of swinging, and improve hitting sound to improve feeling.

As described above, in the hollow metal golf club head, the shaft tip support member 8 is attached to the sole portion 5
By erected the inner wall surface 5a toward the inner side of the hollow portion 1a and separating it from the crown portion 3, the head body 1 and the shaft 4 can be configured without giving a sense of rigidity. When swinging the club,
At the time of ball impact (at the time of hitting a ball), the shaft 4 can use the shaft tip support member 8 formed integrally with the sole portion 5 as a fulcrum.

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

The plate-shaped base end portion 8b of the shaft tip support member 8 is arranged so that the head body 1 can swing toward the face portion 6 side and the back side 1b, that is, the base end portion. As a result of the plate 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 moves toward the face portion 6 side and the back side when the golf club swings. The loft angle α of the club head can be increased by swinging relative to the side 1b and deforming the head main body during swinging and hitting to make it easier to lift the ball when hitting.

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

[0018]

As described above, according to the present invention, the shaft tip support member, which is separated from the crown portion, is provided inside the club head body from the sole portion side toward the shaft insertion hole formed in the crown portion. The base end of the shaft tip support member is formed in a plate shape, and the base end of the plate is arranged so that the head body can swing toward the face side and the back side. Since it is provided, it has the following excellent effects. ． The head body itself can be deformed to hit the ball without being affected by the characteristics of the shaft (for example, bending, twisting, elastic force of the shaft, etc.), and as a result, stable directionality and high trajectory of the ball can be obtained. . ． At the time of swinging a golf club or at the time of ball impact (at the time of 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, elastic force of the shaft). As a result, it is possible to obtain a stable hitting direction and a high trajectory. ． The plate-shaped base end portion of the shaft tip support member is disposed so that the head body can swing toward the face portion side and the back side. Therefore, when the golf club swings, the shaft tip support member or the head is provided. The body swings relatively toward the face side and the back side, and the loft angle of the club head is increased by swinging the head body during swinging and hitting to make it easier to raise the ball when hitting. Can be done. ． Since a rubber-like elastic support member is provided in the peripheral portion of the shaft insertion hole formed in the crown portion, it is possible to effectively prevent breakage of the shaft at the time of swinging the golf club or at the time of ball impact, and in the hollow portion of the head body, It can be configured so that foreign matter such as dust and water does not enter, and further, it can prevent wind noise when swinging and can improve hitting sound by improving the hitting sound.

[Brief description of drawings]

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

2 is a vertical side view of FIG.

FIG. 3 is an explanatory diagram showing a deformed state of the head main body at the time of swinging the golf club and at the time of ball impact.

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

[Explanation 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 portion 9 Rubber-like elastic support member α Loft angle

Claims (3)

(57) [Claims] 1. In a hollow metal golf club head, a shaft tip support member is provided inside the club head main body from the sole portion side toward a shaft insertion hole formed in the crown portion and separated from the crown portion. And the base end portion of the shaft tip support member is formed in a plate shape, and the plate base end portion is configured so that the head body can swing toward the face side and the back side. A golf club head characterized by being arranged. 2. The golf club head according to claim 1, wherein a rubber-like elastic supporting member that elastically supports the shaft tip supporting member is provided on a peripheral portion of a shaft insertion hole formed in the crown portion. 3. A plate-shaped base end portion of the shaft tip supporting member is integrally formed with a sole portion, and the plate-shaped portion is made of an elastic material having a strength that does not break during elastic deformation.
Alternatively, the golf club head according to claim 2.