发明名称 Badminton racket having novel throat connection
摘要 A badminton racket comprises a tubular shaft and an oval shaped frame internally connected to the shaft by a T-shaped joint including a pair of horizontal extensions and a vertical extension. The frame has opposite end portions with opened end faces, each of which is recessed at the lower side thereof in a semi-circular shape, and abutted against each other except at the recessed portions. The horizontal extensions of the joint are fitted in the end portions of the frame while the vertical extension is fitted in the upper end of the shaft. The junction area of the racket is coated with FRP layers to provide external connection.
申请公布号 US4575084(A) 申请公布日期 1986.03.11
申请号 US19840628629 申请日期 1984.07.06
申请人 YONEX KABUSHIKI KAISHA 发明人 YONEYAMA, MINORU
分类号 A63B49/02;(IPC1-7):A63B49/02 主分类号 A63B49/02
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