发明名称 Screw positioning device for a screwdriver
摘要 A screw positioning device for a screwdriver comprises a connecting rod assembly, a screw positioning sleeve and a magnetic member. The screw positioning sleeve is axially defined with a slide hole for insertion of an end of the connecting rod assembly, the magnetic member is installed on inner peripheral surface of a front end of the screw positioning sleeve, the screw positioning sleeve is axially positioned at the end of the connecting rod assembly, and the positioning sleeve can move back and forth a predetermined distance with respective to the connecting rod assembly.
申请公布号 US7124665(B1) 申请公布日期 2006.10.24
申请号 US20050234936 申请日期 2005.09.26
申请人 CHEN HSIU-E 发明人 CHEN HSIU-E
分类号 B25B23/08;B25B23/10 主分类号 B25B23/08
代理机构 代理人
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