Punch stripper for use in press tool for punching hole in metal sheet has punch stripper piston having displacement portion that is axially displaced in gap

摘要

A pressure chamber is designed to spring-load a punch stripper piston (11) while being partially defined by a gap between an inner sleeve and an outer sleeve. The punch stripper piston has a displacement portion that is axially displaced in the gap so that the whole pressure chamber is located between the inner sleeve and outer sleeve.