发明名称 |
String construction for athletic rackets |
摘要 |
A string construction for athletic rackets which can be frictionally engaged with a tennis ball or a badminton shuttlecock very well upon hitting it and which can be uniformly stretched on the athletic racket frame without being twisted, comprises a string-like core made of thermoplastic resin material and a tubular netlike structure made of thermoplastic resin material, the tubular netlike structure netting over and being secured to an outer circumference of the core, wherein the netlike structure includes a plurality of thread-like members forming a plurality of nodes at intersections thereof, all the thread-like members forming each node being integral with each other at each node, and projecting from the outer circumference of the core to a height substantially equal to each other at each node.
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申请公布号 |
US4306410(A) |
申请公布日期 |
1981.12.22 |
申请号 |
US19800205911 |
申请日期 |
1980.11.12 |
申请人 |
KUREHA KAGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
NAKAMURA, MASAAKI;UEBA, HISAAKI |
分类号 |
A63B51/02;D02G3/38;D02G3/44;(IPC1-7):D02G3/34;D02G3/36 |
主分类号 |
A63B51/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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