发明名称 Hand tool having a quick driving effect
摘要 A hand tool includes a driving member, and a wrench body mounted on the driving member. The wrench body includes a handle, a driving head mounted on an end of the handle, and a locking portion rotatably mounted on the driving head and inserted into the mounting hole of the driving member. Thus, the wrench body can drive the driving member to rotate through 360 degrees reciprocally so as to rotate and unscrew the nut successively, so that the driving member can be used to unscrew the workpiece easily and rapidly.
申请公布号 US6928904(B2) 申请公布日期 2005.08.16
申请号 US20030652431 申请日期 2003.08.29
申请人 HSIEN CHIH-CHING 发明人 HSIEN CHIH-CHING
分类号 B25B13/46;B25B23/00;(IPC1-7):B25B13/46;B25B23/16 主分类号 B25B13/46
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