Title:
GOLF CLUB AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2014204782
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To thin a face part and improve durability by subjecting an intermediate part to forging with electric heating in a step of manufacturing a golf club by a round bar.SOLUTION: An intermediate part 11 of a round bar material 10 of α+β titanium alloy is forged by heat compression and swelling. Subsequently, a face part 2 is molded by die forging. Thereby, when the face part 2 is frontally viewed from a stroke direction, a plurality of fiber flows 9 are continuously formed in a direction of connecting the ends a toe part 5 and a heel part 6, and concurrently a plurality of fiber flows 9 at the center of the face part 2 are curved toward a top part 3 and a sole 4 side into a protruding and swelling continuous shape lines in the direction crossing with the direction of connecting the ends of the toe part 5 and the heel part 6. This configuration provides the golf club with improved durability.
Inventors:
TSURUMAKI MASAE
Application Number:
JP2013082810A
Publication Date:
October 30, 2014
Filing Date:
April 11, 2013
Export Citation:
Assignee:
ENDO SEISAKUSHO KK
International Classes:
A63B53/04
Domestic Patent References:
| JP2009261909A | 2009-11-12 | |||
| JP2009261908A | 2009-11-12 | |||
| JP2004202098A | 2004-07-22 | |||
| JP2004215924A | 2004-08-05 | |||
| JP2012101277A | 2012-05-31 | |||
| JP2008119731A | 2008-05-29 | |||
| JP2006297441A | 2006-11-02 | |||
| JP2009287594A | 2009-12-10 |
Foreign References:
| WO2001056666A1 | 2001-08-09 |
Attorney, Agent or Firm:
Motonari Tomizaki
Sadao Enjoji
Mitsunobu Machida
Sadao Enjoji
Mitsunobu Machida