Title:
IRON-TYPE GOLF CLUB
Document Type and Number:
WIPO Patent Application WO/2014/042196
Kind Code:
A1
Abstract:
[Problem] As functions called for in iron-type golf clubs, (1) spin performance, (2) trajectory directionality, (3) striking sensation, (4) followthrough sensation, (5) distance controllability, (6) flyer amelioration, and the like are cited, and so in order to satisfy these functions, an improvement is devised of the characteristics of an iron-type golf club by performing surface treatment of the soft-iron forged head in particular. [Solution] An underlayer of an electroless Ni-P plating film is formed at the entire surface of a soft-iron forged head, and a surface layer of an electroless Ni-P-W plating film is formed on the entire surface of the underlayer. When forming the electroless Ni-P-W plating film, heat treatment is conducted in the range of 300-700°C. The head is a wedge-type head comprising a pitching wedge, an approach wedge, or a sand wedge.
Inventors:
YUKAWA AKIHIRO (JP)
Application Number:
PCT/JP2013/074555
Publication Date:
March 20, 2014
Filing Date:
September 11, 2013
Export Citation:
Assignee:
MATERIAL SURFACE ENGINEERING CO LTD (JP)
International Classes:
A63B53/04; A63B102/32
Foreign References:
| JPH0592054A | 1993-04-16 | |||
| JPH1176476A | 1999-03-23 | |||
| JPH0280070A | 1990-03-20 | |||
| JPS60258473A | 1985-12-20 | |||
| JPH10277185A | 1998-10-20 | |||
| JP2002095777A | 2002-04-02 |
Attorney, Agent or Firm:
YANAGINO Takao et al. (JP)
Takao Yanagino (JP)
Takao Yanagino (JP)
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