JPH07255884A - Manufacture of iron head for golf club - Google Patents

Abstract

PURPOSE:To provide a manufacturing method of an iron head for a golf club by which bonding power of an iron head body and a face member can be strengthened so that the face member is not slipped off from the iron head body. CONSTITUTION:A fitting recessed part 4 to fit a titanium face member 3 to a face surface 2 in the same plane condition is formed on the face surface 2 of an iron head body 1, and plural pin bodies 5 formed of the same titanium material with the face member 3 are erected in prescribed positions on a bottom surface of this fitting recessed part 4. Pin holes 6 through which these pin bodies 5 penetratingly pass are formed in prescribed positions in the face member 3, and the pin bodies 5 are inserted in these pin holes 6, and the face member 3 is fitted in the fitting recessed part 4, and the pin bodies 5 are calked, and the face member 3 is fixed to the iron head body 1, and the iron head body 1 and the face member 3 are joined together.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an iron head of a golf club.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
A method for manufacturing an iron head of a golf club is to form a fitting recess on a face surface of a metallic iron head body so that a metal face member is fitted flush with the face surface, and apply an adhesive to the fitting recess. Then, the face member is press-fitted and adhered to the fitting recess to bond the iron head body and the face member.

However, in this conventional method, the iron head main body and the face member are adhered and bonded with an adhesive, so that the adhesive strength of the adhesive is weak, or the adhesive strength is lowered over time. The adhesive may peel off and the face member may come off from the iron head body.

In addition, if there is an excessive amount of extra adhesive between the iron head body and the face member, when the golf ball is shot, the extra adhesive becomes an elastic body and the golf ball is shot. The hitting force is reduced and the flight distance of the golf ball is shortened.

The present invention provides a method for manufacturing an iron head of a golf club which solves the above problems.

[0006]

The gist of the present invention will be described with reference to the accompanying drawings.

A fitting recess 4 for fitting a face member 3 made of titanium into the face surface 2 of the iron head main body 1 so as to be flush with the face surface 2 is formed, and the face member 3 is formed on the bottom surface of the fitting recess 4. Pin body 5 made of the same titanium material
A plurality of pins are erected at a predetermined position, a pin hole 6 through which the pin body 5 penetrates is formed at a predetermined position in the face member 3, the pin body 5 is inserted into the pin hole 6, and the face is inserted into the fitting recess 4. The face member 3 is fixed to the iron head body 1 by fitting the member 3 and caulking the pin body 5,
And a face member 3 are joined together.

[0008]

Operation: A plurality of pin bodies 5 are erected at predetermined positions on the bottom surface of the fitting concave portion 4, the pin bodies 5 are inserted into the pin holes 6 of the face member 3, and the pin bodies 5 are caulked to iron head body 1
The face member 3 is fixed, and the face member 3 is joined to the iron head body 1.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an iron head A of this embodiment. FIG. 2 is a cross-sectional view showing a cross section of the iron head A. FIG. 3 is a perspective view showing the iron head main body 1, the face member 3, and the pin body 5 which constitute the iron head A. The iron head body 1 is
It is formed by pressing a titanium alloy material. A fitting concave portion 4 is formed on the face surface 2 of the iron head body 1, and the fitting concave portion 4 is provided with five pin standing holes 7 and three lateral grooves 8. The face member 3 is formed by pressing a plate material made of titanium and has pin holes 6. The position of the pin hole 6 is such that the face member 3 is located in the fitting recess 4.
Are provided so as to coincide with the position of the pin standing hole 7 when they are fitted together. The pin body 5 is made of a titanium material like the face member 3.

Next, the manufacturing method will be described. A small amount of adhesive is poured into the pin standing hole 7 provided in the fitting recess 4, and the pin body 5 is inserted into this pin standing hole 7 and adhered to fix it in the standing state.

Next, a small amount of adhesive 9 is poured into the fitting recess 4, and the pin body 5 is inserted into and penetrates the pin hole 6 of the face member 3 to press the fitting recess 4 into several grooves 10 in advance. The face member 3 formed with is fitted while being press-fitted.

Finally, the pin body 5 projecting from the face member 3 is caulked to join the iron head body 1 and the face member 3 together. Furthermore, finish by polishing and painting.

In this embodiment, the iron head body 1
And the face member 3 are adhered with the adhesive 9 and the pin body is caulked and combined, so that the iron head main body 1 and the face member 3 are bonded to each other by the conventional adhesive alone.
And the face member 3 does not come off from the iron head body 1.

Further, since the pin body 5 is made of a titanium material like the face member 3, the pins are not visible on the surface and the appearance is not impaired at all, and the material of the shot surface is not different. The hitting force is uniform and the flight distance of the golf ball is stable.

Further, since the face member 3 and the pin body 5 are made of titanium material, the flight distance of the golf ball when the golf ball is shot is extended.

Further, the lateral groove 8 of the fitting concave portion 4 is provided to increase the adhesive area of the adhesive to increase the adhesive force.

The present invention is not limited to the above-mentioned embodiment, and even if the iron head body 1 and the face member 3 are joined only by the pin body 5, the joining force is stronger than the conventional adhesive. Will be things.

[0019]

As described above, according to the present invention, since the iron head body and the face member are caulked and joined by the pin body as described above, the iron head has a stronger binding force than the conventional adhesive only connection and the face member does not come off from the iron head body. Also, by forming the pin body with a titanium material like the face member, the appearance is not impaired at all, there is no difference in the material of the shot surface, and the striking force when the golf ball is shot becomes uniform. The method of manufacturing an excellent iron head of a golf club that stabilizes the flight distance.

[Brief description of drawings]

FIG. 1 is a perspective view of the present embodiment.

FIG. 2 is a sectional view of the present embodiment.

FIG. 3 is an exploded perspective view showing an iron head, a face portion, and a pin body of this embodiment.

[Explanation of symbols]

 1 Iron head body 2 Face surface 3 Face member 4 Fitting recess 5 Pin body 6 Pin hole

Claims (1)

[Claims] 1. An iron head body is provided with a fitting recess for fitting a titanium face member flush with the face surface, and a titanium material similar to that of the face member is formed on the bottom surface of the fitting recess. A plurality of formed pin bodies are erected at a predetermined position, a pin hole through which the pin body penetrates is formed at a predetermined position in the face member, the pin body is inserted into this pin hole, and the face member is inserted into the fitting recess. A method of manufacturing an iron head for a golf club, comprising fitting, fixing the face member to the iron head body by caulking the pin body, and connecting the iron head body and the face member.