JPH0871187A - Manufacture of head of golf club - Google Patents

Abstract

PURPOSE: To form a score line integrally and simultaneously with the formation of a golf head by laminating and cutting a long fibrous material at specific angles, then placing the same in a recess socket of the head main body, and then performing pressurization and heating after covering it with a cloth of carbon fiber-impregnated epoxy resin, placing Teflon, and putting it into a mold. CONSTITUTION: Long fiber sheets 11B cut from carbon fibrous cloth of impregnated epoxy resin are laminated in the order of 0, +45, -45 and O degree. A recess socket with a predetermined depth is formed in the face of the main body 1 of a club head. A base sheet 11 is placed into the recess socket, its surface is covered with a cloth 12 of carbon fiber-impregnated epoxy resin, and Teflon 13 is placed on the top thereof. When the head main body 1 is placed in a mold cavity of a drag 2, then pressurized with a cope 21 and heated, the cloth 12 of carbon fiber-impregnated epoxy resin and the base sheet 11 are softened, aged and molded. Since several protruding portions 22 are formed on the cope 21, a score line is simultaneously formed on the molded face.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to provide a method of manufacturing a golf head.

[0002]

2. Description of the Related Art Heretofore, in this type, the following has been done. Announcement No. 174744 in Taiwan
In the patent for "Method for molding score line of face of composite material golf club head", a fitting having a predetermined shape and an appropriate thickness is prepared, and several projections are formed in front of the fitting. Then, a fiber woven piece (Woven) having the same outer shape is attached again to the front surface of the fitting piece, the fitting piece and the fiber woven piece are put together in a model and warmed, and the fiber woven piece is ripe, and then the head. Put the appropriate amount of the composite material into the model hole of the molded model, and press and heat the composite material into the model hole to separate the fiber woven piece from the head, and the part facing the protrusion of the head. Mold with score lines.

[0003]

With the conventional device, the following problems can be pointed out. The manufacturing method disclosed in the patent proposal requires that the fitting piece be manufactured in advance, and the fitting piece must be formed with a protrusion in advance, and the score line To be integrally molded into a fitting having a tank of, then warmed and aged together with the fiber woven piece, and again heated with the composite material to be integrally molded,
It is very troublesome in manufacturing as a whole.

[0004] Further, in Japanese Patent Publication No. 2012284 “Method for manufacturing golf head” in Taiwan, one body is cast from metal, and one surface of the body is provided with an indented space. Shoulder and one side are provided on the wall surface of the space,
One substrate is provided in advance, the substrate can close the through hole of the metal body, and in the meanwhile, it can be molded with one molding tank, and the mass of material made of fiber impregnated resin can fill the molding tank. Then, it is pressed and heated to cure it, and then integrally molded with the fiberized resin layer on the surface of the head.
The golf head posted in that patent does not have an integrally molded scoreline layer on the face, so the head must be molded and then reworked to create a scoreline layer, that is, The golf heads posted in both patents use a mass of carbon fiber composite material, mainly impregnated epoxy resin, and are commonly referred to as short fibers (BMC), which cut long fibers into short fibers and then Since the short fiber is soaked in the epoxy resin again and is scattered in the manufacturing process when it is heated and melted, there is a defect that the short fiber is scattered around. Therefore, a fitting having a shape of a score line is manufactured in advance or formed. After that, the score line must be engraved again using the CMC engraving machine, which is very inconvenient in manufacturing.

The present application has been made in view of the above problems of the prior art, and an object of the present application is to provide the following. A method of manufacturing a golf head which is different from the conventional method is provided, and at the same time when the golf head is molded, the score line is integrally molded together. Therefore, the golf head can be manufactured easily.

[0006]

In order to achieve the above object, the present invention is as follows. Carbon fiber cloth of impregnated epoxy resin (so-called long fiber PPG) is piled up thickly, and one roll of long fiber material is 0 ° → + 45 ° → −45 ° → 0
Stacked from different directions in the order of °, the number of layers and the thickness of this stack are changed according to the depth of the concave tank on the face of the head, and after cutting into a material of an appropriate size, the concave tank of the head body is cut. Place it, cover it with two layers of carbon fiber impregnated epoxy resin woven fabric as the top layer, and place Teflon on the top layer to help separate from the formwork, which has the shape of the score line in advance The score lines of the face of the head body are simultaneously formed by putting them together in a mold provided with protrusions and curing and aging them through pressurization and heating.

[0007]

[Operation] The operation will be described together with the effect.

[0008]

EXAMPLES Examples will be described with reference to the drawings. As shown in FIG. 1, a carbon fiber cloth 11A of impregnated epoxy resin is cut into appropriate long fiber pieces 11B, and as shown in FIG. 2, the long fiber pieces 11B are cut at 0 °, + 45 °, −45 °, 0 °. Stack in a stacking method according to the order. The number of layers or the thickness thereof is determined by the depth of the concave tank 10 in which the head body 1 is provided. Further, the stacked long fiber pieces are cut into a base piece 11 shown in FIG. 3, and the base piece 11 is cut into the shape of the embodiment shown in FIG. 4 according to the demand of various face shapes.

Referring to FIGS. 5 and 6, the head body 1 of the club is provided with a recessed tank 10 having a predetermined depth on the face, and the bottom of the recessed tank 10 is flat and has the same depth. Is configured. Therefore, referring to FIG. 7, the base piece 11 is put in the concave tank 10 of the head body 1, and the surface of the base piece 11 is made of carbon fiber impregnated epoxy resin woven cloth (Wov).
en) 12 cover with two layers, and then put one Teflon 13 on top again. Referring to FIG. 8, one Teflon 1
The head body 1 covered with 3 is placed in the mold cavity of the lower mold 2 and is pressed and heated by the upper mold 21. Therefore, the carbon fiber-impregnated epoxy resin woven fabric 12 and the base piece 11 (PPG) are softened, ripe and molded. Since the upper die 21 is provided with several protrusions 22, the score line 14 is also formed on the formed face at the same time. (See Figure 9)

FIG. 10 shows a face fitting 3 which is another embodiment of the present invention. The fitting piece 3 of the face is made of a more special material. The material is, for example, ceramics, titanium alloy, copper alloy, aluminum alloy, or the like.
Therefore, the thickness is about 1.5 to 3 mm, and the score line 31 is provided on the front surface. With reference to FIG. 11, the head body 1A is put into the mold cavity of the mold frame 2A,
The base piece 11A is placed in the concave tank 1A1. Then, the uppermost layer is covered with one piece of Teflon 13A, and is pressed and heated by the upper mold 21A. The upper mold 21A has the same radian mold surface as that of the fitting piece 3, and is softened and matured by this to be molded into a face made of a special material. The surface of this face is about 0.2 to more than the head body 1A.
It is lowered by 0.3 mm, and the finished head product is molded through polishing again. (See Fig. 12)

[0011]

Since the present invention is configured as described above, it has the following effects. 1. The carbon fiber cloth of impregnated epoxy resin can be cut into a required shape and thickness of the material with a cutter in a stacking method, and the amount of impregnated epoxy resin is uniform and the strength of the manufactured material is better. Get better. 2. Since carbon fiber is used for the weight of the face, the flight distance of the ball can be increased, and the control of the direction of the ball can be improved. In particular, the score line and the face are integrally formed by using heat and pressure, which takes less effort than the conventional engraving method. 3. Further, since the score line is molded from the upper mold protrusion, there is no fear of destroying the fiber structure, it is economical, and the quality can be maintained at a certain level.

[Brief description of drawings]

FIG. 1 is a perspective view of a carbon fiber cloth of impregnated epoxy resin.

FIG. 2 is a plan view illustrating a manufacturing process of a base piece.

FIG. 3 is a plan view illustrating a manufacturing process of the base piece.

FIG. 4 is a plan view of a base piece.

FIG. 5 is a front view of the head body.

FIG. 6 is a sectional view taken along line AA.

FIG. 7 is a cross-sectional view showing a state where a base piece, a carbon fiber-impregnated epoxy resin cloth, and Teflon are attached to the head body.

FIG. 8 is a cross-sectional view illustrating a processed state.

FIG. 9 is a perspective view of a finished product.

FIG. 10 is a plan view of a face fitting piece according to another embodiment.

FIG. 11 is a cross-sectional view illustrating a processed state.

FIG. 12 is a perspective view of a finished product of another embodiment.

[Explanation of symbols]

 1 Head Body 2 Lower Mold 3 Face Fitting 10 Recessed Tank 11 Base Piece 12 Carbon Fiber Impregnated Epoxy Resin Woven Fabric 13 Teflon 14 Scoreline 21 Upper Mold 22 Projection 31 Scoreline

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[Procedure amendment]

[Submission date] October 14, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

[0011]

Since the present invention is configured as described above, it has the following effects. 1. Since we piled up carbon fiber cloth of impregnated epoxy resin ,
A cutter can cut the shape and thickness of the required material very easily, and the amount of impregnated epoxy resin is uniform .
The strength of the constructed material will be even better. 2. Since carbon fiber is used for the weight of the face, the flight distance of the ball can be increased, and the control of the direction of the ball can be improved. In particular, the score line and the face are integrally formed by using heat and pressure, which takes less effort than the conventional engraving method. 3. Further, since the score line is molded from the upper mold protrusion, there is no fear of destroying the fiber structure, it is economical, and the quality can be maintained at a certain level.

Claims (4)

[Claims] 1. A carbon fiber cloth of an impregnated epoxy resin is cut into long fiber pieces having an appropriate length, and the long fiber pieces are arranged in a long fiber angle order of 0 °, + 45 °, −45 °, 0 °. The appropriate number of layers or thicknesses, and then cut to put it in the concave tank of the head body to form a base piece, and after putting this base piece in the concave tank of the head body, the surface of the head body Is covered with two layers of carbon fiber impregnated epoxy resin woven cloth with a slightly larger area, Teflon is placed on the uppermost layer, and pressure and heat are applied using the upper mold of the formwork to create a carbon fiber impregnated epoxy resin woven cloth. By curing the base piece, several projections provided on the upper mold are formed so that several projections are formed on the face of the head at the same time. Production method. 2. A carbon fiber cloth of an impregnated epoxy resin is cut into long fiber pieces having an appropriate length, and these long fiber pieces are arranged in a long fiber angle order of 0 °, + 45 °, −45 °, 0 °. By stacking it to an appropriate number of layers or thickness, and then cutting it so as to put it in the concave tank of the head body to form a base piece, and using a special material such as ceramics, titanium alloy, copper alloy, aluminum alloy, etc. A score line is provided on the front side of the face fitting piece configured as described above, the base piece and the face fitting piece are put together in the formwork, and further, one Teflon is covered on the uppermost layer,
2. The method of manufacturing a golf head according to claim 1, wherein the upper die is pressed and heated, and the upper die has the same radian die surface as the face fitting piece. 3. The method of manufacturing a golf head according to claim 1, wherein the depth of the head body is about 3 to 5 mm. 4. The thickness of the face fitting is about 1.5 to 3 m.
The method for manufacturing a golf head according to claim 2, wherein m is m.