Patent ID: 8402632
Filing Date: 2013-03-26
Classification: B21J,F16B,Y10T

Abstract:
1. Method for crimping an insert to be clinched in a support by means of a placing apparatus having an anvil, in an area where the support comprises superposed first and second panels at a distance from one another, respectively comprising first and second passage apertures, wherein the insert comprises a securing head and a shank subdivided into a first section arranged on the same side as the securing head and a second crimping section of reduced cross-section subdivided into a first segment, adjacent to the first section, delineating a first bore having a first diameter and a second segment delineating a second bore having a second diameter that is larger than the first diameter, the method comprising: inserting the shank axially in the support, on the side where the first panel is situated, through the first and second passage apertures, up to a position of the insert where the distal end of the shank opposite the head is flush with the second panel through the second aperture, and then bringing the anvil up against the distal end of the shank, compressing the second section axially against the anvil to fold the second segment over onto the second panel and create a pressing edge radially salient from the shank, continuing axial compression of the second section to create a crimping rim axially interposed between the first section and the second panel and, in combination with the pressing edge, delineating an anchoring groove surrounding the second panel at the periphery of the second aperture, continuing axial compression of the second section to bring the securing head into contact against the first panel and create clamping of the support between the securing head and the pressing edge, in conjunction with clamping of the second panel between the pressing edge and the crimping rim.