发明名称 Ratchet wrench structure having a high torsion driving action along dual directions
摘要 A ratchet wrench structure includes a wrench body defining a receiving hole receiving a ratchet wheel and a receiving recess receiving a locking pawl, a resting block, and two elastic members. The locking pawl has a first side formed with locking teeth engaging the engaging teeth of the ratchet wheel, and a second side formed with an arcuate inner face. The resting block has a first end rested on the arcuate resting face of the receiving recess, and a second end formed with a resting end rested on the arcuate inner face of the locking pawl. The two elastic members received in two sides of the resting block, wherein one elastic member is rested on the arcuate resting face of the receiving recess, and the other elastic member is rested on the arcuate inner face of the locking pawl.
申请公布号 US6415691(B1) 申请公布日期 2002.07.09
申请号 US20010941209 申请日期 2001.08.29
申请人 CHEN MU LIN 发明人 CHEN MU LIN
分类号 B25B13/46;(IPC1-7):B25B13/46 主分类号 B25B13/46
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