JPH09266967A - Low torque golf club shaft made of metal plated graphite - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce torsion and to improve durability, by applying a multilayer metal plating on the surface of a material tube for golf club formed from a graphite sheet into a tube. SOLUTION: The surface 1 of a material tube for a golf club shaft is applied by multilayer metal plating 2-4 to plate a thin metal film on the whole surface of the shaft to reduce torsion. For this processing, the surface 1 is sufficiently degreased and washed with water to be activated at first, then a copper plating 2 of the first layer is formed. Next, after water washing and surface activating processing, a nickel plating 3 of the second plating layer is formed, following that, after sufficient water washing, a finishing plating 4 of the third layer is formed, and finally water washing and drying are carried out to complete the desired golf club shaft.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphite golf shaft which is durable and has reduced twist by applying a multi-layer metal plating.

[0002]

2. Description of the Related Art Conventionally, there have been graphite golf shafts in which twisting is reduced by a method of combining the types of graphite fibers and by knitting metal fibers.

[0003]

This has the following disadvantages. (B) The method of reducing the twist by combining the types of graphite fibers and weaving or rolling in the metal fibers has a problem in terms of structure because of the labor-intensive production, and the complexity of the raw materials and the manufacturing process. (B) There is no method other than painting with resin paint as the finishing method, and it is easy to get scratches and stains, resulting in severe wear and durability. The present invention has been made to eliminate these drawbacks.

[0004]

[MEANS FOR SOLVING THE PROBLEMS] By applying multi-layer metal plating (2) (3) (4) to the surface (1) of the bare golf shaft, a thin metal film is plated on the entire surface of the shaft to prevent twisting. It is characterized by reduced durability and excellent durability. The present invention is a graphite low torque golf shaft having the above-described configuration.

[0005]

Embodiments of the present invention will be described below. (A) The surface (1) of the raw pipe shaft is thoroughly degreased and washed with water to activate the surface.

(B) Next, the multi-layer plating is started. The copper plating (2) of the first layer is 150 g to 200 g / ι of copper sulfate,
Sulfuric acid 40g-65g / ι, brightener 3g / ι 2-4A /
Plating is performed at dm ² at 15 ° C to 25 ° C for 20 minutes to 40 minutes.

(C) After washing with water and surface activation, a second layer of nickel plating (3) is applied. This is nickel sulfate 300g-350g / ι, nickel chloride 40g-
60 g / ι, boric acid 45 to 50 g / ι, and PH 3 to 5 are plated at ² to 5 A / dm ² at 45 ° C to 55 ° C for 10 to 20 minutes.

(D) After sufficient washing with water, finish plating (4) of the third layer is applied. This is hexavalent chrome 165
g to 250g / ι, sulfuric acid 0.8g to 2g / ι 10-2
The plate is plated at 0 A / dm ² at 40 ° C. to 50 ° C. for 2 minutes, washed with water and dried. Here, chrome finish is used, but gold, silver, rhodium, etc. can be selected each time.

[0009]

EFFECTS OF THE INVENTION The graphite golf shaft plated with multi-layered metal has reduced twist, excellent productivity, high economic efficiency, and excellent durability.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view of the present invention.

FIG. 2 is a perspective view of the present invention.

[Explanation of symbols]

 (1) Graphite tube surface (2) Copper plating layer (3) Nickel plating layer (4) Finish plating layer

[Procedure amendment]

[Submission date] July 8, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Change

[Correction contents]

[Title of the Invention] Metal-plated low torque golf shaft made of graphite

Claims (1)

[Claims] 1. A twist is reduced by applying a multi-layer metal plating layer (2) (3) (4) to the surface (1) of a bare-tube golf shaft in which a graphite sheet is tubular. Graphite golf shaft.