Device for the automatic or manual adjustment of the brake shoe play on brakes with brake linkage, in particular for brakes of rail vehicles

摘要

Such a device operates according to the so-called single nut system with a non self-locking threaded part (5) and an adjusting nut (6) acting in concert with this, and with a spring-supported adjusting sleeve (7), it being possible to engage or disengage the adjusting sleeve (7) by means of a first coupling (8) in order to prevent or facilitate the rotation, and a second coupling (10) being provided between the piston (2) and the threaded part (5) when the first coupling (8) is disengaged. In order to achieve a shorter length and smaller diameter and a compact accommodation of the adjusting device, it is proposed that the adjusting sleeve (7) be arranged in a hollow chamber (11) of the piston (2), that the brake force be introduced through a central, short piston core section (2e) of a central piston rod (2j), that the adjusting nut (6) be of hollow construction and have an internally threaded section (6a) and that it engage by the internally threaded section (6a) in the external thread (5b) of the threaded part (5). IMAGE