Invention Grant
- Patent Title: Golf club
- Patent Title (中): 高尔夫俱乐部
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Application No.: US12912282Application Date: 2010-10-26
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Publication No.: US08668597B2Publication Date: 2014-03-11
- Inventor: Akio Yamamoto
- Applicant: Akio Yamamoto
- Applicant Address: JP Kobe
- Assignee: Dunlop Sports Co. Ltd.
- Current Assignee: Dunlop Sports Co. Ltd.
- Current Assignee Address: JP Kobe
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2009-246017 20091027
- Main IPC: A63B53/02
- IPC: A63B53/02

Abstract:
A golf club 2 is provided with a head 4, a shaft 6, a tip member 8, and a screw member 10. The shaft 6 is inserted into a shaft hole of the tip member 8, and a tip part of the shaft 6 is fixed to the shaft hole. An axis line s1 of the shaft 6 is inclined with respect to an axis line z1 of the tip member 8. The head 4 has a head hole into which the tip member is inserted, a head side engaging part capable of being engaged with the tip member 8 inserted into the head hole, and a through hole into which the screw member 10 can be inserted. The tip member 8 has a shaft side engaging part 38 capable of being engaged with the head side engaging part. Circumferential relative positions A in which the head side engaging part and the shaft side engaging part can be engaged with each other are M kinds. The circumferential relative positions A can equalize adjustment distance of a loft angle, a lie angle, or a hook angle as compared with circumferential relative positions B in being equally divided into M pieces in a circumferential direction.
Public/Granted literature
- US20110098127A1 GOLF CLUB Public/Granted day:2011-04-28
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