Invention Grant
US07862448B2 Sports equipment 有权
体育器材

  • Patent Title: Sports equipment
  • Patent Title (中): 体育器材
  • Application No.: US12160229
    Application Date: 2007-01-11
  • Publication No.: US07862448B2
    Publication 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
Sports equipment
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.
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