Improvements in self-energising disc brakes.

摘要

A pressure plate for a self-energising disc brake of the spreading type is provided with angularly spaced integrally cast ears (22) which project inwardly from the inner peripher- at edge of the plate, and a recess or dimple (24) is also cast integrally in each ear (22) in the face of the ear (22) adjacent to the braking face (12). A region (26) of each ear (22) outwardly of the recess of dimple (24) defines an abutment face forming an anchorage for one end of an anchorage portion of a tension return spring with the recess or dimple (24) accommodating the free end of the anchorage portion. In a modification each abutment face (26) may be machined in the respective ear by turning down the ear over an arcuate area passing through the centre of the recess or dimple and using the braking face (12) as a datum.