Invention Grant
- Patent Title: Sports equipment
- Patent Title (中): 体育器材
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Application No.: US12160229Application Date: 2007-01-11
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Publication No.: US07862448B2Publication Date: 2011-01-04
- Inventor: Yoshiyuki Tanio
- Applicant: Yoshiyuki Tanio
- Applicant Address: JP Aichi
- Assignee: Right Planning Ltd.
- Current Assignee: Right Planning Ltd.
- Current Assignee Address: JP Aichi
- Agency: Arent Fox LLP
- Priority: JP2006-003922 20060111
- International Application: PCT/JP2007/050217 WO 20070111
- International Announcement: WO2007/080912 WO 20070719
- Main IPC: A63B53/10
- IPC: A63B53/10

Abstract:
It is a sport equipment 2 using a partially hardened sheet form prepreg 10 formed by impregnating a reinforced fiber material 6 disposed substantially parallel with a thermal hardening resin material 7 to bind the reinforced fiber material, where the prepreg is layered so as to form a tube rod in a tapered shape having a diameter increasing from one end to the other, and the tube rod is provided with a strengthening means on a radially entire circumference to the axis direction. Herewith it is especially used for a golf club shaft, while maintaining a characteristic of light weight, securing strength equal to or greater than a steel-made golf shaft, and suppressing unnecessary deflection and vibration, so as to provide a sports equipment made of a reinforced fiber combined material such as a gold club shaft having high strength such as bending and twisting rigidity.
Public/Granted literature
- US20090011851A1 Sports Equipment Public/Granted day:2009-01-08
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