公开(公告)号：US3722280A

公开(公告)日：1973-03-27

申请号：US3722280D

申请日：1971-03-25

Applicant: ALUMINUM CO OF AMERICA

Inventor： VAN GREUINGEN T

IPC: B21D39/00 ,  B21D43/28

CPC classification number: B21D39/00 ,  Y10T29/49936

Abstract: A portable tool for fastening together superposed metal members. The tool has two movable frame portions which are operable to firmly clamp the metal members together. With the metal members firmly clamped, a punch element, movable within one of the frames, is moved to punch integral tabs in the members through die openings provided in the other frame. As the punch is withdrawn the tabs are bent by a bender element movable within the other frame, the bending being sufficient to firmly lock the members together without a complete bending of the tabs back against the surface of the superposed members.

Abstract translation: 用于将重叠的金属构件紧固在一起的便携式工具。 该工具具有两个可移动的框架部分，其可操作以将金属构件牢固地夹紧在一起。 在金属构件被牢固地夹紧的情况下，可在一个框架内移动的冲头元件通过设置在另一个框架中的模具开口移动到构件中冲压整体凸片。 当冲头被拉出时，凸片由可在另一框架内移动的弯曲元件弯曲，弯曲足以将构件牢固地锁定在一起，而不会使凸片完全弯曲回叠在叠置构件的表面上。