Reaktionskraftübertragungsmechnanismus für einen pneumatischen Bremskraftverstärker

摘要

The invention relates to a reaction force transmission mechanism for a pneumatic brake booster, comprising a reaction disk (7) which is located between an input member (2) and an output member (3). Said reaction disk is essentially incompressible, is enclosed on the peripheral side and has side contact surfaces for the input member (2) and the output member (3). The contact surface on the input member side can be impinged upon by means of a pressure piece (9) which can be fixed to a control housing (6) and therefore removed when the reaction force is transmitted to a vehicle driver. According to the invention, the reaction disk (7) is provided with a recess (13) in the area of contact of a valve piston extension (11) in order to improve the durability of said reaction disk. An essentially incompressible elastic insert (19) is located in this recess.