JPH0890658A - Manufacture of shaft for golf club - Google Patents

Abstract

PURPOSE: To provide a manufacture of a shaft for a golf club which can manufacture the club shaft whose coloring is performed easily and color tone is made to change step by step, by a method wherein the color tone is made to change by winding a colored resin film around the outermost layer of a shaft main body. CONSTITUTION: A precolored tapelike (or a sheetlike) resin film 3 is made to the laminated to the outermost layer of a shaft main body 1 by winding around the same and a color tone is made to change step by step a to a part or the whole of a club shaft.

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 a golf club shaft, and more specifically, when the club shaft is colored and the color tone is changed stepwise, the outermost layer of the shaft body is colored. The present invention relates to a method for manufacturing a golf club shaft in which a resin film is wound to change the color tone.

[0002]

2. Description of the Related Art Conventionally, in golf club shafts, golfers feel that the length of the club shaft is short, or the color tone is partially changed or gradually changed for the purpose of design differentiation. Is being done. For example, in order to make the tip side of the club shaft (the tip side to which the club head is attached) feel thin, the color tone is painted dark, and in order to make it feel thick, the color tone is painted bright.

By the way, as a method of coloring the club shaft, for example, A method of applying the paint to only a part of the club shaft by spraying. A method is known in which a sheet that is soluble in a certain solution is printed, a floating sheet is dissolved in the solution, and then only ink is attached by dipping (immersion).

[0004]

However, in the conventional method as described above, in the method of partially changing the color by coating the club shaft, the position where the color tone is changed or the degree of change is changed depending on the individual product. However, when it is desired to unify them as one type of product, the skill of the operator is required, and a separate step for changing the color is required depending on the painting step, which is expensive.

The present invention has been devised in view of the above conventional problems, and when coloring the club shaft and changing the color tone stepwise, the outermost layer of the shaft body is
By winding a colored resin film and changing the color tone, you can easily make a club shaft or change the color tone step by step without using a separate coating method or another process to change the color. It is an object of the present invention to provide a method of manufacturing a golf club shaft that can be manufactured.

[0006]

In order to achieve the above object, the present invention is achieved by winding and laminating a colored tape-shaped or sheet-shaped resin film on the outermost layer of the shaft body during the club shaft manufacturing process. The gist of the present invention is to manufacture a club shaft having a different color tone by constituting a shaft body, heating and curing the shaft body to laminate and integrate the films.

It is also possible to wind and laminate a colored resin film on all or part of the outermost layer of the shaft body, and the tape-shaped or sheet-shaped resin film is transparent or translucent. The above paint is applied by coloring with a lacquer or dipping. Further, when the colored resin film is wound around the outermost layer of the shaft main body, the pitch of the wound and laminated layers can be changed to change the color tone of the club shaft stepwise.

[0008]

The present invention is configured as described above, and when manufacturing a golf club shaft by winding a plurality of fiber reinforced resin sheets around a mandrel for manufacturing a shaft, and heating and curing, the outermost layer of the shaft body. In addition, a shaft main body is formed by winding and laminating a colored tape-shaped or sheet-shaped resin film, which is visually distinguishable after molding and curing, to distinguish the shade after heating, and curing the shaft main body by heating and curing the shaft main body. By laminating and integrating the films, it is possible to easily manufacture a club shaft having a desired color tone, and it is also possible to make a partial color difference.

Further, it is possible to make the color of the tape-like film semi-transparent and change the pitch of winding and laminating to change the color gradually. As described above, a uniform coating is applied over the entire length of the shaft by the conventional method, and a tape-shaped resin film which is previously colored with a predetermined color is wound around the entire length or a part of the shaft to be integrally molded. By doing so, it is possible to manufacture a constant club shaft having a different color tone.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an explanatory view showing a manufacturing process of a golf club shaft embodying the present invention, in which 1 is a mandrel 2 for manufacturing a shaft, a shaft main body is made by winding a plurality of fiber reinforced resin sheets, and 3 is a shaft main body 1. 2 shows a colored tape-shaped (or sheet-shaped) thermoplastic resin film wound around the outermost layer of FIG.

In the present invention, a tape-shaped (or sheet-shaped) resin film 3 which has been colored in advance is wound and laminated on the outermost layer of the shaft body 1, and a part or the whole of the club shaft is colored in stages. The basic idea is to make a change, and it is produced by the following method. That is, as shown in the block diagram of the manufacturing process of FIG. 2, first, as in the conventional case, the shaft manufacturing mandrel 2 is manufactured.
A step of forming the shaft main body 1 by winding a plurality of fiber-reinforced resin sheets on the step (step), a step of applying a base on the surface of the shaft main body 1 by means of a squeeze coating or a dip coating (step), and finishing the base coating. A step (step) of winding a colored transparent or translucent tape-shaped (or sheet-shaped) resin film 3 as a means for gradually changing the color tone around a part or the whole of the shaft main body 1, A process of putting the club shaft around which the film 3 is wound into an oven or the like to heat and cure the club shaft, and integrate the club shaft and the resin film 3
(Step), and further, a step (step) of pulling out the mandrel 2 from the molded club shaft and molding a club shaft having a changed color tone.

As means for preliminarily coloring the transparent or translucent tape-shaped (or sheet-shaped) resin film 3, a paint of a certain color is uniformly coated by means of squeeze coating or dip coating. .
The resin film 3 is wound around the entire outermost layer of the shaft main body 1 or a part of the outermost layer of the shaft main body 1, and the resin film 3 is laminated on the outermost layer of the shaft main body 1. It is possible to change the color tone of the club shaft stepwise by changing the pitch of winding and laminating when winding 3.

When the shaft main body 1 and the resin film 3 are wound around a certain position and then placed in an oven or the like to be heated and cured, the resin film 3 is integrated with the shaft main body 1. It is possible to gradually change the overall color tone. The resin film 3
As described above, by using a resin made of aromatic polyamide or the like, it is possible to color a part of the shaft main body 1 or change the color tone in a stepwise manner, and also to increase the rigidity.

[0014]

As described above, according to the present invention, during the club shaft manufacturing process, a colored tape-shaped or sheet-shaped resin film is wound and laminated on the outermost layer of the shaft body to form the shaft body, By heating and curing the shaft body and laminating and integrating the films, it is possible to gradually change the color tone of part and the entire length of the club shaft, and to change the conventional coating method and color. There is an effect that it is possible to easily perform coloring and to manufacture the club shaft by gradually changing the color tone without using a separate process of No. 1 and without requiring a skilled worker.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a manufacturing process of a golf club shaft embodying the present invention.

FIG. 2 is a block diagram showing a manufacturing process of the present invention.

[Explanation of symbols]

1 Shaft body 2 Mandrel for manufacturing shaft 3 Tape-shaped (or sheet-shaped) thermoplastic resin film

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location B29K 105: 24 B29L 31:06

Claims (4)

[Claims] 1. A method of manufacturing a golf club shaft by winding a plurality of fiber reinforced resin sheets around a mandrel for manufacturing a shaft, heating and curing the sheet, and coloring the outermost layer of the shaft body during the club shaft manufacturing process. To form a shaft main body by winding and laminating a tape-shaped or sheet-shaped resin film, and heating and curing the shaft main body to laminate and integrate the films to manufacture a club shaft having a changed color tone. A method for manufacturing a golf club shaft, comprising: 2. The method for manufacturing a golf club shaft according to claim 1, wherein a colored resin film is wound and laminated on all or part of the outermost layer of the shaft body. 3. The golf club shaft according to claim 1, wherein the tape-shaped or sheet-shaped resin film is colored by applying a transparent or translucent coating material by lacquering or dipping. Manufacturing method. 4. The color tone of the club shaft is changed stepwise by changing the pitch of winding and laminating when the colored resin film is wound around the outermost layer of the shaft main body. A method for manufacturing a golf club shaft according to item 1.