JP2004202567A - Manufacturing method of golf club head - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a golf club head that is integrally formed and does not have joined parts. <P>SOLUTION: In a wax model preparing operation, a wax solution is poured into a first and a second mold 10, 20 to form wax models. In a wax model joining operation, the wax models are integrated into one unit by joining them together. In a sand mold fabricating operation, a sand mold 30 is made on the surface of the integrally joined wax model, and then the wax model is melted at high temperature and flowed out of the sand mold 30, so that a projected part 31 is formed inside the sand mold 30 from which the wax model is flowed out, and an injecting port is formed on one side. In a golf club head forming operation, molten metal is poured from the injecting port into the sand mold and, after the molten metal is solidified, the sand mold 30 is collapsed to take out a golf club head 4. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention particularly relates to an integrally formed golf head having no joints.
[0002]
[Prior art]
Golf heads have various standards depending on the hitting effect of a golf ball, such as wood heads, iron heads, and putter heads. As shown in FIGS. 10 and 11, the head body (50) and the face (60) of the conventional iron head (5) are individually manufactured and then welded to each other and fixed. A ring-shaped positioning groove (51) is formed on the front surface of the head body (50), and a conical hole (52) is formed in the center. The size of the positioning groove (51) is equal to the face (60). The face (60) is placed in the positioning groove (51) and becomes an iron head (5) by welding work.
[0003]
In the method of manufacturing the head main body (50) and the face (60) of the iron head (5), first, a mold for manufacturing the head main body (50) and the face (60) is manufactured. After the liquid is injected, a wax model of the head body (50) and the face (60) is manufactured, and then a sand mold is formed on the surfaces of the wax model of the head body (50) and the face (60) by impregnation. Is produced. After separating the wax model and the sand mold, the metal solution is injected into the sand mold and solidified. Further, after the sand mold is broken individually, the head body (50) and the face (60) are removed. It can be taken out.
[0004]
The reason why the head main body (50) and the face (60) are manufactured by this individually manufactured method is that the head main body (50) responds to the curved motion of hitting the golf ball, so that a conical hole (52) is formed inside. Therefore, if the wax model of the head main body (50) and the face (60) are integrally formed, there is a problem that the wax model cannot be separated from the mold.
[0005]
[Problems to be solved by the present invention]
However, as shown in FIG. 11, the iron head (5) manufactured by the above manufacturing method is different regardless of how the face (60) is firmly welded to the positioning groove (51) of the head body (50). Because of the coupling, when hitting the ball, there is a problem that the welded portion between the outer edge of the face (60) and the head main body (50) is torn, and furthermore, this welding method increases manufacturing time and work personnel. There is a problem that the manufacturing cost increases.
[0006]
Accordingly, the present invention has been filed for the present invention, which has an object of providing an integrally formed golf head having no joints.
[0007]
[Means for Solving the Problems]
The invention of claim 1 of the present application is based on a wax model manufacturing operation (A) for manufacturing a wax model, a wax model bonding operation (B) for bonding the wax models to each other, and a bonded wax model. A golf head manufacturing method comprising: a sand mold manufacturing operation (C) for manufacturing a sand mold; and a golf head manufacturing operation (D) for manufacturing a golf head with a sand mold,
In the wax model manufacturing operation (A), a wax solution is injected into the first mold (10) and the second mold (20), respectively, and a wax model is manufactured.
The wax model joining work (B) is united by bonding the wax models together,
In the sand mold manufacturing operation (C), after the sand mold (30) is manufactured on the surface of the wax model bonded together, the wax model is melted at a high temperature and is poured out from the sand mold (30). A protrusion (31) is formed inside the sand mold (30) from which the model has been poured out, and an injection port (32) is formed on one side. The melting metal solution is used for the golf head manufacturing operation (D). (32) is injected into the inside of the sand mold (30), and after solidifying the metal solution, the sand mold (30) is crushed and the golf head (4) is taken out. Method and
The invention according to claim 2 of the present application provides the golf head manufacturing method according to claim 1, wherein the wax model is a main body model (11) and a face model (21).
[0008]
[Action]
The present invention solves the above-mentioned problems, and by joining individual wax models to produce a sand mold on the surface, a metal solution is injected into the sand mold to produce an integrated golf head. Therefore, a golf head having excellent structural strength can be obtained.
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
[0009]
FIG. 1 is a flowchart of a method for manufacturing a golf head according to the present invention, FIG. 2 is a reference view of a main body model used in the method for manufacturing a golf head according to the present invention, and FIG. FIG. 4 is a perspective view of a main body model and a face model used in a golf head manufacturing method according to the present invention, and FIG. 5 is a golf head manufacturing method according to the present invention. FIG. 6 is a cross-sectional view showing a combined state of a main body model and a face model to be used, and FIG. 6 is a reference view showing a state in which a sand mold is formed by the main body model and the face model in the golf head manufacturing method according to the present invention. 7 is a cross-sectional view of a sand mold formed by the golf head manufacturing method according to the present invention, and FIG. It is another cross-sectional view of a sand mold for molding by the method of manufacturing a golf head according to FIG. 9 is a sectional view of the golf head produced by the production method of the golf head according to the present invention.
[0010]
As shown in FIGS. 1 to 3, the present invention joins a wax model manufacturing operation (A) for manufacturing a wax model, and a wax model bonding operation (B) for bonding the wax models to each other. A sand mold manufacturing operation (C) for manufacturing a sand mold with a wax model and a golf head manufacturing operation (D) for manufacturing a golf head with a sand mold are provided.
[0011]
As shown in FIGS. 2 and 3, in the wax model manufacturing operation (A), the wax solution is injected into the first mold (10) and the second mold (20), respectively, and the main body model (11) and the face model ( 21) is manufactured.
[0012]
As shown in FIG. 4, the main body model (11) manufactured by the wax model manufacturing operation (A) has a positioning groove (12) formed in the front surface and a conical hole (13) formed in the center.
[0013]
As shown in FIGS. 1 and 5, the wax model joining operation (B) is integrated by bonding the face model (21) to the positioning groove (12) in the main body model (11).
[0014]
As shown in FIGS. 1 and 6 to 8, the sand mold manufacturing operation (C) is performed after the sand mold (30) is manufactured on the surfaces of the body model (11) and the face model (21) bonded together. The wax model is melted and poured out of the sand mold (30) at a high temperature. As shown in FIGS. 7 and 8, a protrusion (31) is formed inside the sand mold (30) from which the wax model is poured, and an injection port (32) is formed on one side.
[0015]
In the golf head manufacturing operation (D), a melting metal solution is injected into the sand mold (30) from the injection port (32), and after solidifying the metal solution, the sand mold (30) is crushed, and FIG. The golf head (4) is removed as shown. Thus, the head main body (40) and the face (41) are integrated, and a conical hole (42) is formed inside the head main body (40).
[0016]
【The invention's effect】
Since the present invention has been described above, the following effects can be obtained. By joining individual wax models to produce a sand mold on the surface and injecting a metal solution into the sand mold, an integral golf head is produced, thus obtaining a golf head having excellent structural strength be able to.
[Brief description of the drawings]
FIG. 1 is a flowchart of a method for manufacturing a golf head according to the present invention.
FIG. 2 is a reference view of a main body model used in a golf head manufacturing method according to the present invention.
FIG. 3 is a reference view of a face model used in a golf head manufacturing method according to the present invention.
FIG. 4 is a perspective view of a main body model and a face model used in the golf head manufacturing method according to the present invention.
FIG. 5 is a cross-sectional view showing a combined state of a main body model and a face model used in the golf head manufacturing method according to the present invention.
FIG. 6 is a reference view showing a state in which a sand mold is formed by a main body model and a face model in the golf head manufacturing method according to the present invention.
FIG. 7 is a cross-sectional view of a sand mold formed by the golf head manufacturing method according to the present invention.
FIG. 8 is another cross-sectional view of a sand mold formed by the golf head manufacturing method according to the present invention.
FIG. 9 is a cross-sectional view of a golf head manufactured by a golf head manufacturing method according to the present invention.
FIG. 10 is an exploded perspective view of a main body and a face of a conventional iron head.
FIG. 11 is a cross-sectional view showing a combined state of a main body and a face of a conventional iron head.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 1st mold 11 Main body model 12 Positioning groove 13 Conical hole 20 Second mold 21 Face 30 Sand mold 31 Projection part 32 Inlet 4 Golf head 40 Head main body 41 Face 42 Conical hole 5 Iron head 50 Head main body 51 Positioning groove 52 Conical hole 60 face
A wax model production work
B wax model joining work
C Sand mold production work
D Golf head production work

Claims (2)

A wax model manufacturing operation (A) for manufacturing a wax model, a wax model bonding operation (B) for bonding the wax models to each other, and a sand mold manufacturing operation for manufacturing a sand mold from the bonded wax models. A golf head manufacturing method comprising (C) and a golf head manufacturing operation (D) for manufacturing a golf head with a sand mold,
In the wax model manufacturing operation (A), a wax solution is injected into the first mold (10) and the second mold (20), respectively, and a wax model is manufactured.
The wax model joining work (B) is united by bonding the wax models together,
In the sand mold manufacturing operation (C), after the sand mold (30) is manufactured on the surface of the wax model bonded together, the wax model is melted at a high temperature and is poured out from the sand mold (30). A protrusion (31) is formed inside the sand mold (30) from which the model has been poured out, and an injection port (32) is formed on one side. The melting metal solution is used for the golf head manufacturing operation (D). (32) is injected into the inside of the sand mold (30), and after solidifying the metal solution, the sand mold (30) is crushed and the golf head (4) is taken out. Method. 2. The method of manufacturing a golf head according to claim 1, wherein the wax models are a main body model (11) and a face model (21).

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