Flatter valve i.e. non-return valve, for use in rotary vane pump in brake booster in motor car, has blank holder whose form corresponds to bending line of single-sided clamped bending bar, which is designed as cantilever arm

摘要

The valve (1) has a single-sided clamped blank holder (3) limiting an opening position of a spring leaf (2), where form of the blank holder corresponds to a bending line of a single-sided clamped bending bar. The bending bar is designed as a cantilever arm. The spring leaf is made of spring steel, and the blank holder is made of steel sheet. The spring leaf and the blank holder are clamped at a same position. The spring leaf and the blank holder are welded, adhered, riveted or screwed with each other in a fixed manner.