Brake activation device which can be activated as a function of travel speed

摘要

In railways which are used in particular in underground mining operations, a reliable braking device is required which prevents movement of the vehicles at an undesired high speed in locations with a positive or negative gradient particularly if the said railway does not have its own drive but is driven by pulling cables. For this purpose, mechanical brake activators are known which, however, have numerous disadvantages. In the invention, an electric generator serves both to provide the predetermined speed and to generate the operating current required to operate the device. <IMAGE>