发明名称 Ratchet wrench
摘要 An inexpensive ratchet wrench primarily consisting of stamped metal parts having a head pivotally mounted upon an elongated handle. A torque transfer member utilizing ratchet teeth is rotatably mounted upon the head and a detent fixed upon an end of the handle selectively engages the ratchet teeth as the head pivots relative to the handle during torqueing and return handle movements. Stop means interposed between the head and handle limit relative pivotal movement therebetween, and a spring imposes a biasing action on the head biasing the head in a direction engaging the torque transfer member ratchet teeth with the handle detent.
申请公布号 US4913009(A) 申请公布日期 1990.04.03
申请号 US19880237320 申请日期 1988.08.29
申请人 JACKSON ASSEMBLY ENTERPRISES, INC. 发明人 ANDERSEN-VIE, AXEL E.
分类号 B25B13/46 主分类号 B25B13/46
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