发明名称 Replacement structure of ratchet wrench
摘要 A ratchet wrench includes a parts replacement structure that ensures effort-saved and smooth operation and prevents parts from getting lost. The wrench has a handle having an end forming a head portion that rotatably receives therein a driving collar. A lid plate is fixed to the head portion to retain a pawl member that engages and controls the rotation of the driving collar. The pawl member includes a pusher pad positioned on and movable along a top of the lid plate. A retention block is set at the side of the pawl member opposite to the driving collar to apply a biasing force to the pawl member through a push bar. In this arrangement, the push bar will not get lost when the pawl member disengages from and thus releases the driving collar for replacement.
申请公布号 US8042433(B2) 申请公布日期 2011.10.25
申请号 US20090493254 申请日期 2009.06.29
申请人 JIUTSANG LIMITED 发明人 CHU CHING-TSENG
分类号 B25B13/46 主分类号 B25B13/46
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