发明授权
- 专利标题: Tennis racquet with tapered profile frame
- 专利标题(中): 网球拍与锥形轮廓框架
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申请号: US478065申请日: 1990-02-07
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公开(公告)号: US5037098A公开(公告)日: 1991-08-06
- 发明人: Stephen J. Davis
- 申请人: Stephen J. Davis
- 申请人地址: NJ Lawrenceville
- 专利权人: Prince Manufacturing, Inc.
- 当前专利权人: Prince Manufacturing, Inc.
- 当前专利权人地址: NJ Lawrenceville
- 主分类号: A63B49/02
- IPC分类号: A63B49/02
摘要:
A tennis racquet includes a hollow tubular frame defining a head portion, a throat, and a shaft portion supporting a handle. The frame has a height, in a direction perpendicular to the stringing plane, that increases uniformly from the bottomn of the throat to the tip of the head portion, so as to increase in stiffness further away from the handle. Such arrangement, in which the frame is most flexible at the top of the handle, reduces the angle of deflection of the stringing plane upon impact and absorbs shock.
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