JPH0574564U - Golf club head - Google Patents

Abstract

(57) [Abstract] [Purpose] In a golf club head formed by connecting a joint insertion hole of a club head body and a club shaft through a joint member, the weight and center of gravity of the club head body are adjusted to the club head body. An object of the present invention is to provide a golf club head that can be easily formed in the formed joint insertion hole. [Structure] 1 is a golf club head body mainly made of fiber reinforced plastic, 3 is a club shaft, and 4 is a crank shape for connecting a joint insertion hole 7 formed in the club head body 1 and the club shaft 3. The metal joint member 4 formed is shown. The insertion portion 4a of the joint member 4 into the joint insertion hole 7 is formed with a hollow portion 8 having a predetermined length from its tip, and the position of the hollow portion 8 is the strength and durability of the club head. From this point, it is formed from the end portion of the neck portion 2, that is, from the uppermost end a of the joint insertion hole 7 to a length d ≧ 5 mm to the tip portion of the joint member 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a golf club head, and more specifically, in a golf club head formed by connecting a joint insertion hole of a wood golf club head body and a club shaft through a joint member, the weight and center of gravity of the club head body are located. The present invention relates to a golf club head that can be easily adjusted.

[0002]

[Prior Art]

 Conventionally, in order to easily change the face regression, loft angle, lie angle, etc. of a golf club head, a neck portion 2 of a wood golf club head body 1 and a club shaft 3 are connected as shown in FIG. Therefore, a golf club using the metal joint member 4 has been proposed (Japanese Utility Model Laid-Open No. 59-41447).

Further, conventionally, there is also a method of embedding a weight body 6 in a joint insertion hole 5 formed in the wood golf club head body 1 in order to adjust the weight and the center of gravity of the wood golf club head body 1. Are known.

[0004]

[Problems to be solved by the device]

 However, in the case of a golf club using the metal joint member 4 as described above, there is a problem in that the center of gravity of the club head is high because of the joint member 4, and the joint member 4 is located inside the shaft hole 5. However, there is a problem that it is difficult to adjust the weight in the joint insertion hole 5 because it is inserted into the joint.

The present invention has been made in view of such conventional problems, and in a golf club head formed by connecting a joint insertion hole of a club head body and a club shaft through a joint member, the club head It is an object of the present invention to provide a golf club head in which the weight and the position of the center of gravity of the main body can be easily adjusted within a joint insertion hole formed in the main body of the club.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is characterized in that a hollow portion having a predetermined length from the tip portion is formed at the insertion portion of the joint member into the joint insertion hole. A weight body for adjusting the weight and the position of the center of gravity of the club head body is mounted in the hollow portion formed in the insertion portion.

[0007]

[Function of the device]

 This invention is configured as described above, and when the weight and the center of gravity of the club head body are adjusted in the joint insertion hole formed in the club head body, a metal joint member is inserted into the joint insertion hole. It can be easily adjusted by forming a hollow part of a predetermined length from the tip part, and by further mounting a weight body such as lead or brass in the hollow part, weight adjustment can be made easier. It can be done.

[0008]

[Example of device]

 An embodiment of the present invention will be described below with reference to the accompanying drawings. The same components as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted. FIG. 1 is a sectional view of a wood golf club head showing a first embodiment of the present invention, in which 1 is a golf club head body mainly made of fiber reinforced plastic, 3 is a club shaft, and 4 is a club head body 1. It shows a metal joint member formed in a crank shape for connecting the formed joint insertion hole 7 and the club shaft 3.

The insertion portion 4a of the joint member 4 into the joint insertion hole 7 is formed with a hollow portion 8 having a predetermined length from the tip thereof, and the position of the hollow portion 8 is the strength of the club head. From the viewpoint of durability and durability, it is formed from the end of the neck portion 2, that is, from the uppermost end a of the joint insertion hole 7 to a length d ≧ 5 mm to the tip of the joint member 4. That is, when the length of d is less than 5 mm, the joint member 4 is easily broken by the impact at the time of hitting the ball, and there is a risk of lowering the durability of the club head. It is preferable to form the hollow portion 8 from the height d ≧ 5 mm.

Next, FIG. 2 and FIG. 3 show a second embodiment and a third embodiment of the present invention. In this embodiment, lead, in the hollow portion 8 formed in the joint member 4 is A weight body 9 made of brass or the like is attached to adjust the weight and center of gravity of the club head body 1. That is, in the case of the second embodiment of FIG. 2, the weight body 9 is inserted inside the distal end side of the hollow portion 8 and the lower end portion of the joint insertion hole 7 is closed by the buttocks 10 and mounted. is there.

In addition, in the case of FIG. 3, the weight body 9 is formed in a T shape, and the flange portion 9 a of the weight body 9 is inserted into the distal end side of the hollow portion 8 so that the weight body 9 is inserted. The lower end portion is closed by the buttocks 10 and attached. In this concrete example, a rod-shaped weight 9 having an outer diameter of 5 mm and a length of 2.5 mm is inserted into the hollow portion 8 and the head weight of 6 g, that is, the swing balance of the golf club is adjusted by about 3 points. I was able to do it.

As described above, when the weight and the position of the center of gravity of the club head body 1 are adjusted in the joint insertion hole 7 formed in the club head body 1, the metal joint member 4 is inserted into the joint insertion hole 7. The insertion portion 4a can be easily adjusted by forming a hollow portion 8 having a predetermined length from the tip portion, and a weight body 9 made of lead, brass, or the like can be mounted in the hollow portion 8 to adjust the weight. Can be further facilitated. In addition, although the wood golf club head has been described in the above embodiment, the same can be applied to the iron golf club head.

[0013]

[Effect of the device]

 As described above, the present invention provides a golf club head comprising a club head body and a joint insertion hole formed in the club head body connected to each other through a joint member, wherein the joint member is inserted into the joint insertion hole. Since a hollow part with a specified length from the tip is formed, the weight and center of gravity of the club head body can be easily adjusted in the joint insertion hole formed in the club head body, and the center of gravity of the club head can be adjusted. This has the effect of lowering the position and making it easier to hit the ball. Also, by mounting a weight body for adjusting the weight and the center of gravity of the club head body in the hollow part formed in the insertion part of the joint member, the weight of the club head body can be finely adjusted and the position of the center of gravity can be finely adjusted. The effect is that adjustment can be performed accurately.

[Brief description of drawings]

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

FIG. 2 is a sectional view of a wood golf club head showing a second embodiment of the present invention.

FIG. 3 is a sectional view of a wood golf club head showing a third embodiment of the present invention.

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

[Explanation of symbols]

 1 Golf Club Head Main Body 2 Neck Part 3 Club Shaft 4 Joint Member 4a Joint Member Insertion Part 7 Joint Insertion Hole 8 Hollow Part 9 Weight Body d Length from Top End a of Joint Insertion Hole

Claims (2)

[Scope of utility model registration request] 1. A golf club head comprising a club head body and a joint insertion hole formed in the club head body and a club shaft connected to each other via a joint member, wherein a tip end portion of the joint member is inserted into the joint insertion hole. A golf club head having a hollow portion having a predetermined length. 2. The golf club head according to claim 1, wherein a weight body for adjusting the weight and the position of the center of gravity of the club head body is mounted in the hollow portion formed in the insertion portion of the joint member.