发明名称 Ratchet screwdriver and method of making same
摘要 A ratchet screwdriver and method of making same wherein there is a handle and there are a ratchet gear and pawls inside the handle. An adjuster is inside the handle and is movable by a tool extending into the handle for positioning the adjuster relative to the gear and thereby eliminating play between the gear and the handle. Ball bearings are interposed between the handle and the gear and the bearings rotatably support the gear and transmit the anti-play forces that act on the gear.
申请公布号 US2007101831(A1) 申请公布日期 2007.05.10
申请号 US20060646371 申请日期 2006.12.28
申请人 PILLING WECK, INCORPORATED 发明人 RINNER JAMES A.;GAO HUA
分类号 B25B13/00 主分类号 B25B13/00
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