发明名称 A STRUCTURE OF A RATCHET WHEEL HAVING A RATCHET WHEEL ALLOWING A SMOOTH TEETH RETURNING AFTER APPLICATION OF THE RATCHET WRENCH
摘要 An improved structure of a ratchet wrench is disclosed. The structure has a plurality of engaging teeth on a teeth member and a ratchet wheel, characterized in that at least a cavity hole is appropriately provided on the engaging teeth and is mounted with an elastic body therein, thereby, when the teeth member is engaged with the ratchet wheel, the elastic body of the engaging teeth produces a small gap, by the elastic force of the elastic body, between the teeth member and the ratchet wheel, allowing a smooth teeth-returning between the teeth member and the ratchet wheel.
申请公布号 US2002189407(A1) 申请公布日期 2002.12.19
申请号 US20010880999 申请日期 2001.06.15
申请人 MU-LIN CHEN 发明人 MU-LIN CHEN
分类号 B25B13/46;(IPC1-7):B25B13/46 主分类号 B25B13/46
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