公开(公告)号：US20250135525A1

公开(公告)日：2025-05-01

申请号：US18854728

申请日：2023-04-04

Applicant: Hilti Aktiengesellschaft

Inventor： John GOU ,  Jiayang SUN ,  Kun QIAN

IPC: B21J15/10 ,  B21J15/04 ,  B21J15/26

Abstract: A setting tool for a blind rivet, the setting tool including a shell as well as a drive unit, a pull unit, a clamping unit, and a nose part which are contained in the shell, wherein the clamping unit includes a plurality of clamping blocks angularly arrayed around a pulling direction in sequence; a plurality of clamping teeth are provided on an inner side, facing a mandrel of a blind rivet, of each clamping block; the clamping teeth at a front section of the clamping block are at least partially removed in advance to reduce or eliminate a concentrated stress or shear force acting on the front sections of the clamping blocks and generated due to unequal acting forces from the clamping sleeve and the blind rivet, wherein the unequal acting forces are caused by actual processing tolerance, design, or the fact that the mandrel of the blind rivet cannot be totally parallel to the axis R constantly during riveting.