JP3009702U - Golf club head - Google Patents

Abstract

(57) [Summary] [Purpose] A golf club head is provided with a structure for increasing the repulsive force to increase the flight distance. An opening 11 is formed in a part or almost the entire surface of the hollow casting head body 10 corresponding to the face, and a face member 12 is fitted and fixed to the opening 11 to close the opening 11. 12 is provided with a curved surface 13 protruding forward.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hollow head of a golf club cast by the investment casting method.

[0002]

[Prior art]

 Various attempts have been made to improve the head of a golf club, but the conventional one depends on how to incorporate a material having excellent impact resilience into the face in contact with the golf ball.

[0003]

[Problems to be solved by the device]

 The object of the present invention is not to simply change the material, but to increase the flight distance by providing a structure that enhances the repulsive force.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention closes an opening 11 formed in a part or almost the entire surface corresponding to a face, so that a curved plate made of titanium having a curved surface 13 protruding forward is provided in the opening 11. It is a means of fitting and fixing.

[0005]

[Action]

 Since the ball is struck by the face member 12 made of a curved plate made of titanium having a curved surface 13 projecting forward, the curved surface repels deformation caused by the hitting force, and the repulsive elastic force is larger than that in the case of a flat plate. Exert.

[0006]

【Example】

 The golf club shown in the figure is for a driver, and the head body 10 thereof is a hollow molded product cast by the investment casting method. The head body 10 is made of stainless steel, and is cast so as to have the size and weight required for the club, in this case, the driver.

On the surface corresponding to the face of the head body 10, an opening 11 having a size covering almost the entire surface is formed by the casting. The inside of the edge of the opening 11 projects toward the center of the opening to form a stepped receiving portion 14, which is a portion for receiving a face member 12 described later.

A groove portion 15 a is provided at a key portion of the edge of the opening 11 as a part of a fitting structure 15 for securely fixing the face member 12. The groove 15a is a dent provided in a part of the upper and lower edges of the opening 11 (FIGS. 1 and 2).

The above-mentioned face member 12 is formed by molding a single plate member 12 ′ made of titanium or its alloy. The plate member 12 'is a single-walled plate of cast titanium and is molded so that the so-called sweet point and its periphery form a curved surface 13 protruding forward. At the same time, as a part of the fitting structure 15, the protrusions 15b are also molded on the upper and lower sides of the face member 12. The height and width of the protrusion 15b are set so that they can fit perfectly with the groove 15a on the main body side.

The face member 12 having such an edge is fitted into the receiving portion 14 around the opening 11 and is press-fitted under a high pressure condition by a press machine to be integrated with the main body 10 of the club head. When the press molding is completed, the entire peripheral edge of the face member 12 is surrounded by the front edge of the opening 11 (FIG. 4). The curved surface 13 of the face member 12 projects slightly forward of the straight line L connecting the upper and lower edges of the opening 11.

[0011]

[Effect of device]

 The present invention is configured and operates as described above, and since the central portion of the titanium single plate forming the face of the head body 10 has the curved surface 13 protruding forward, the characteristics of titanium are 120% can be exerted to obtain a remarkable impact resilience, and the flight distance can be increased.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a golf club head according to the present invention.

FIG. 2 is an explanatory cross-sectional view showing the manufacturing process of the head.

FIG. 3 is a perspective view of the head shown in FIG.

FIG. 4 is a sectional view of the head shown in FIG.

Claims (2)

[Scope of utility model registration request] 1. A hollow head of a golf club cast by an investment casting method, comprising:
A face member 12 for closing an opening 11 formed in a part or almost the entire surface of the head body 10 corresponding to the face.
A golf club head having a structure in which is fitted into and fixed to the opening 11, and is a curved plate made of titanium in which a curved surface 13 protruding forward is provided on a face member 12. 2. A hollow head of a golf club cast by an investment casting method, comprising:
The head body 10 is a hollow one made of stainless steel by investment casting, has an opening 11 extending over almost the entire surface corresponding to the face, and a receiving portion 14 is provided along the edge thereof so as to project toward the center of the opening 11. A curved surface 13 protruding forward from a straight line connecting the upper and lower edges of the opening 11 to a substantially central portion of a titanium face member 12 that is press-fitted into the opening 11 and is received by a catch 14.
A golf club head characterized by being formed.