JPH04129577A - Golf club head - Google Patents

Abstract

PURPOSE:To prevent corrosion and improve durability by integrally molding a sole plate made of Al or Al alloy and a frame to a club head main body bottom section mainly made of carbon fiber-reinforced plastic, and applying anode oxide film processing at least on the contact face with the main body. CONSTITUTION:A sole plate 2 made of Al or Al alloy is applied with various processing such as pressing before usage, then the anode oxide film processing Q with high electric insulation and a thick film is applied to the surface, back face and periphery of the sole plate 2 and the whole faces of anchor pins 3, and it is molded integrally with a club head main body 1. Even if moisture is stuck on the sole plate 2, contact corrosion is rarely generated, even if moisture infiltrates between carbon fiber-reinforced plastic and the sole plate 2, the corrosion of the aluminum section can be prevented by an alumite film.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a golf club head, and more specifically, a golf club head that is integrally molded with a club head main body made of carbon fiber reinforced plastic (CFRP). The present invention relates to a golf club head that effectively prevents corrosion of the sole plate and frame made of aluminum or aluminum alloy.

[Conventional technology]

Conventionally, wood golf club heads and iron golf club heads, in which a sole plate and frame made of aluminum or aluminum alloy are integrally formed on the bottom of a club head body made mainly of synthetic resin during molding, require special anti-corrosion treatment. A sole plate and frame that had not been treated was used.

(Problems to be Solved by the Invention) In such a golf club head, if water remains attached, the aluminum or aluminum alloy of the sole plate and frame will corrode, causing the golf club to become damaged. This may shorten the life of the head. This phenomenon occurs when the main body of the club head is made of highly conductive CFRP, due to the contact between the CFRP, which has a large difference in corrosion potential, and a dissimilar material called aluminum, and the aluminum side comes into contact near the contact area. This is a problem that corrodes and greatly shortens the life of the club head.

[Purpose of the invention]

This invention was devised in view of the above-mentioned conventional problems, and is effective in preventing corrosion of the sole plate and frame made of aluminum or aluminum alloy, which are integrally molded with the club head body mainly made of CFRP. 2. It is possible to prevent this and improve the durability of the cod head.
In particular, it is an object of the present invention to provide a golf club head that extends the life of the club head.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention aims to provide at least the contact surface with the club head body of a sole plate and frame made of aluminum or aluminum apex that are integrally shaped with a club head body mainly made of CFF1P. The main idea is to perform an anodic N coating treatment and provide an electrical insulating layer between the CFRP and the sole plate and frame.

[Action of the invention]

The present invention is constructed as described above, and includes a sole plate and a frame, at least to a club.

By applying a highly electrically insulating anodic oxide film treatment (alumite treatment) to the contact surface with the club head body, even if moisture adheres to the sole plate and frame of the club head, it will not be affected by contact corrosion, etc. In addition, by effectively preventing the sole plate and frame made of aluminum alloy from rusting, the life of the club head can be extended.

[Embodiments of the invention] Hereinafter, the present invention will be described in detail based on the accompanying drawings.

FIG. 1 and FIG. 2 are CFs showing a first embodiment of the present invention.
A sectional view of a club head body 1 of a wood golf club mainly made of RP (carbon fiber reinforced plastic), and FIG. 2 is a plan view of a sole plate 2 made of aluminum or aluminum alloy, and the club head body 1 and The sole plate 2 is integrally formed during molding.

The sole plate 2 made of aluminum or aluminum alloy is subjected to various processing such as pressing before use, and then the front and back surfaces and peripheral portions of the sole plate 2, as well as the entire surface of the anchor pin 3, have high electrical insulation properties. In addition, anodic oxidation coating treatment (alumite treatment) Q is applied, which has a large coating thickness. This sole plate 2 is integrally molded when the club head body 1 is molded.

As an example of anodic oxide film treatment, for example, a sole plate and frame made of aluminum are processed by drilling, etc., and then anodized film treatment is performed using sulfuric acid, followed by black staining and sealing. A process called black dyeing was performed.

Further, FIG. 3 shows another embodiment of the sole plate 2a, and in this embodiment as well, the entire sole plate 2a or the contact surface with the club head main body l is electrically insulated, as in the first embodiment. After the anodic oxidation coating treatment Q, which is high and thick, is physically formed when the club head body I is formed.

In this way, by subjecting the sole plate 2 to the anodized film treatment Q having electrical insulation properties in advance, even if moisture adheres to the sole plate 2° 2a of the club head body 1,
Resistant to contact corrosion and CFRP and sole brake)2
, 2a, the alumite film can prevent corrosion of the aluminum parts.

4 and 5 are a front view and a cross-sectional view taken along the line V-■ of an iron club head showing a second embodiment of the present invention. In this embodiment, the club head main body 4 is
A frame 5 made of aluminum or aluminum alloy is integrally molded on the bottom of the frame 5, and this frame 5 is formed with the entire frame 5 or the club head body 4, as in the first embodiment. The contact surface of
It has been subjected to anodic oxide coating treatment Q, which has high electrical insulation properties and a large coating thickness.

As a result, even if moisture adheres to the frame 5 of the club head body 4, contact corrosion is unlikely to occur, and even if moisture enters the gap between the CFRP and the frame, the alumite film prevents corrosion of the aluminum part. This is something that can be done.

[Effects of the Invention] As described above, the present invention improves the club head by applying a highly electrically insulating anodic oxide coating (alumite treatment) to at least the surfaces of the sole plate and frame that contact the club head body. Even if moisture adheres to the sole plate and frame, it will not be affected by contact corrosion, etc., and rusting of the sole plate and frame made of aluminum or aluminum alloy can be effectively prevented. As a result, the durability of the club head and the club head will be improved. It has the effect of extending lifespan.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a wood golf club head showing a first embodiment of the invention, FIG. 2 is a plan view of a sole plate, and FIG. 3 is a plan view showing another embodiment of the sole plate.
4 is a front view of an iron club head showing a second embodiment of the present invention, and FIG. 5 is a sectional view taken along the line V--■ in FIG. 4. 1... The club head body of the wood golf club, 2.
... Sole plate, 4... Iron club club head body, 5... Frame, Q... Anodized film treatment.

Claims (1)

[Claims] A golf club head comprising a sole plate and a frame made of aluminum or aluminum alloy integrally molded on the bottom of a club head body mainly made of carbon fiber reinforced plastic, wherein at least the club head of the sole plate and frame A golf club head characterized in that the contact surface with the main body is anodized.