发明名称 Pivotal hand tool and pivot joint therefor
摘要 A pivotal hand tool includes first and second lever members which intersect and have aligned openings therethrough in which is received a pivot pin having an enlarged head at one end adjacent to one of the lever members and having the other end thereof welded to the other lever member or to a flat washer which bears against the other lever member. The head and the flat washer may be received in complementary recesses in the lever members. A frustoconical washer may be disposed beneath the head of the pivot pin for resiliently urging the lever members together.
申请公布号 US5220856(A) 申请公布日期 1993.06.22
申请号 US19910696715 申请日期 1991.05.07
申请人 SNAP-ON TOOLS CORPORATION 发明人 EGGERT, DANIEL M.;HOFF, JEFFREY H.;KRIVEC, BERT;MIKIC, FRANK;THOMPSON, CHRISTOPHER D.
分类号 B25B7/06;B25B7/08 主分类号 B25B7/06
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