JPH04241883A - Production of iron club head - Google Patents

Abstract

PURPOSE:To surely fix the embedding material for obtaining prescribed head weight into a hollow head, and to offer the hollow iron club head having stability and reliability. CONSTITUTION:A hollow head 10 is formed by coupling integrally a metallic plate A for constituting a face part and a metallic plate B for constituting a back part, and in the hollow head 10, an embedding material C is inserted and tacked in a prescribed position, and subsequently, the inside of the hollow body 10 is filled with a powder brazing filler metal, and also, by heating it, the embedding material C is brazed and fixed to a prescribed position.

Description

[Detailed description of the invention]

0001

FIELD OF INDUSTRIAL APPLICATION This invention relates to a method for manufacturing iron club heads for golf, and more particularly to a method for manufacturing iron club heads for golf, and in particular, a type of club head in which a heavy object is inserted into the iron club head formed in a hollow body to obtain a constant head weight. This relates to a manufacturing method.

0002

2. Description of the Related Art Conventionally, the weight adjustment in the head of an iron club, which is constructed by combining a plurality of metal plate members into a hollow body, has been carried out by using a hollow body in the head, as shown in Japanese Patent Publication No. 39-21879. A common method is to melt and inject metal such as zinc into the interior.

0003

[Problems to be Solved by the Invention] In the method described above in which molten metal is injected and filled into the hollow part of the head, when the molten metal solidifies, it contracts and creates a gap in the hollow part, which causes problems in the stability of the head. There are problems with reliability, and there is also the problem of making abnormal noises and discomfort when hitting the ball, and not being able to freely adjust the weight of the head.

0004

[Means for Solving the Problems] According to the present invention, in order to solve the above-mentioned problems, a hollow iron head is constructed by combining a plurality of members formed of metal plates, and a fixed iron head is provided inside the hollow head. A solid embedding material is inserted and temporarily fixed in a predetermined position to obtain a head weight of A method of manufacturing an iron club head is provided.

[0005]

[Operation] According to the present invention constructed as described above, the solid embedding material inserted into the hollow head is firmly fixed within the hollow head by brazing, so that the embedding material itself does not change after insertion. There is no problem, the head is stable,
By appropriately selecting the embedding material, it is possible to obtain an iron head with a desired weight without producing any abnormal noise when hitting the ball.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings. Referring to FIG. 4, the iron club head of the present invention includes a metal plate A in which a face 1 and a neck half part 2 are integrally formed, and a sole 3, a back part 4, and a neck half part 5 are integrally formed. The formed metal plate B is joined together by welding or the like to form a hollow head 10 as shown in FIGS. 1, 2, and 3.

Next, the hollow portion 6 (first
A solid embedding material C is inserted into the head (Fig.) to obtain a constant head weight. This embedding material C is available in various weights, sizes, and shapes, and a desired one is selected and used. Then, this embedding material C is temporarily fixed at a predetermined position within the hollow section 6 by adhering it with an adhesive or pressing it into the hollow section 6 .

[0008] Next, in the hollow part 6, zinc-copper or tin-
Filled with powder solder made of an alloy such as lead, which is then heated and melted. The molten solder powder flows into the location where the hollow portion 6 and the embedding material C are in contact with each other, and the temporarily fixed embedding material C is brazed at that position. In this way, the solid embedding material C for obtaining a constant head weight is firmly fixed at a predetermined position within the hollow part 6 of the head.

Therefore, according to the present embodiment, it is possible to select an implant material having a desired weight and shape and firmly fix it in a predetermined position of the hollow head, so that it is possible to select a stable implant material having a desired weight and a desired center of gravity position. It is possible to provide an iron club head with high performance and reliability.

0010

According to the present invention, the solid embedding material for obtaining a constant head weight is temporarily fixed in the hollow head and then fixed in that position by brazing. It is possible to securely and firmly fix the head in a predetermined position, so that the predetermined position of the center of gravity of the head and the head balance can be obtained as expected, and no abnormal noise is produced when the ball is hit. Furthermore, by appropriately selecting and using embedding materials of various weights, the weight and center of gravity position of the head can be set arbitrarily.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view taken along line XX in FIG. 2 of an iron club head manufactured according to the present invention.

[Figure 2]
FIG. 2 is a front view of the iron club head of FIG. 1;

FIG. 3 is a bottom view of the iron club head of FIG. 1;

FIG. 4 is a bottom view showing each component before forming the iron club head of FIG. 1;

[Explanation of symbols]

A...Metal plate B...Metal plate C...embedding material 1...Face 2...neck half part 3...Sole 4...Back part 5...neck half part 6...Hollow part 7...Deaf 10...Hollow head

Claims (1)

[Claims] Claim 1: A hollow iron head is constructed by combining a plurality of members formed of metal plates, and a solid embedding material is inserted into the hollow head to obtain a constant head weight, and the material is placed in a predetermined position. A method for manufacturing an iron club head, which comprises temporarily fixing the head, and then filling the hollow head with powdered solder and heating it to braze and fix the embedding material at the predetermined position within the hollow head.