发明名称 Method for manufacturing a metal racket frame and racket obtained according to this method
摘要 Method for manufacturing a racket frame for tennis or other games, the rackets consisting of a metal tube and being strung via holes. According to the invention, at least some of the holes are punched and enlarged with the aid of oval punches whose large axis is arranged parallel to the longitudinal direction of the tube 1, frustoconical inserts 6 being inserted into the holes 4. Applications: production of rackets which are flexible during play and which have a low aerodynamic drag. <IMAGE>
申请公布号 FR2588760(A1) 申请公布日期 1987.04.24
申请号 FR19850015639 申请日期 1985.10.22
申请人 PATENTEX SA 发明人 RENE LACOSTE
分类号 A63B49/12;(IPC1-7):A63B49/02;A63B51/16 主分类号 A63B49/12
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