Invention Grant
- Patent Title: Golf club
- Patent Title (中): 高尔夫俱乐部
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Application No.: US13670926Application Date: 2012-11-07
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Publication No.: US08821310B2Publication Date: 2014-09-02
- Inventor: Fumiaki Sato
- Applicant: Bridgestone Sports Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: Bridgestone Sports Co., Ltd.
- Current Assignee: Bridgestone Sports Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2011-249750 20111115
- Main IPC: A63B53/10
- IPC: A63B53/10 ; A63B59/00 ; A63B53/04

Abstract:
A golf club includes a shaft and a head, the torque of the entire length of the shaft being in a range of 3 to 5°. From viewpoints of a torsional rigidity distribution of the shaft, an integrated value of the torsional rigidity on the grip end side of the shaft is 85% or less of the integrated value of the torsional rigidity of the entire length of the shaft. The head has a distance to the center of gravity of 40 to 48 mm and a gravity center angle of 22 to 30°.
Public/Granted literature
- US20130123039A1 GOLF CLUB Public/Granted day:2013-05-16
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