Club head

Abstract

A club head composed of a club head body and a single- or multi-layered coating film covering the club head body, wherein the coating film includes a coating layer having good scratch or scuff resistance and high resilience. The club head keeps a good appearance even after repeated shots because of its good scratch or scuff resistance and its ability to repair scuffs by itself with the lapse of time even though it is temporarily damaged.

Description

CROSS-REFERENCE TO RELATED APPLICATION [0001] This non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No. 2004-179028 filed in Japan on Jun. 17, 2004, the entire contents of which are hereby incorporated by reference. BACKGROUND OF THE INVENTION [0002] The present invention relates to a club head excelling in surface durability. [0003] Club heads for golf, park golf, grand golf, and gate ball usually have a coating film for their surface protection and good appearance. Such coating film is required to have not only good appearance but also good resistance to impact and wear resulting from repeated shots by the club or stick. [0004] A club head coating material to meet this requirement is disclosed in JP-A 2003-126306. It is composed of 100 pbw of acrylic resin (solids) and 1.0 to 10.0 pbw of polyethylene wax. It forms a coating film which exhibits good wear resistance and peel resistance owing to the outstanding impact resistance of the acrylic...

AI Technical Summary

Benefits of technology

[0006] The present invention was completed in view of the foregoing. It is an object of the present invention to provide a club head which keeps a good appearance even after repeated shots because of its good scratch or scuff resistance and its ability to repair scuffs by itself with the lapse of time even though it is temporarily damaged.

[0007] As the result of their extensive studies, the present inventors found that the above-mentioned object is achieved by a club head composed of a club head body and a coating film covering the club head body, wherein the coating film includes a layer having good scratch or scuff resistance and high resilience. This finding led to the present invention.

[0008] The first aspect of the present invention is directed to a club head composed of a club head body and a single- or multi-layered coating film covering the club head body, wherein the coating film includes a coating layer having good scratch or scuff resistance and high resilience.

[0009] The second aspect of the present invention is directed to the club head as defined above in which the coating layer having good scratch or scuff resistance and high resilience is one which is formed from any of a coating compound containing polydimethylsiloxane copolymer, polycaprolactone, and polysiloxane, a coating compound containing polydimethylsiloxane copolymer whose skeleton has polycaprolactone and polysiloxane introduced thereinto, a coating compound containing polydimethylsiloxane copolymer whose skeleton has polycaprolactone introduced thereinto and polysiloxane, and a coating compound containing polydimethylsiloxane copolymer whose skeleton has polysiloxane introduced thereinto and polycaprolactone.

[0010] The third aspect of the present invention is directed to the club head as defined in the first aspect which the coating layer having good scratch or scuff resistance and high resilience is formed after a deposited layer has been formed by ion plating on the surface of the club head body.

[0012] The club head according to the present invention keeps its good appearance even after repeated shots.

Problems solved by technology

This conventional coating material, however, is not entirely satisfactory.

Even though it forms an impact- and wear-resistant coating film on the club head, the coating film is subject to scuff which propagates to deteriorate the head's appearance.