Switching unit for variable-speed transmission, has guide tracks formed as individual guiding contacts projecting from plane of lateral surface, where guiding contacts section-wise contact with drivers during each shifting process

摘要

The unit (1) has shift forks (7a-7c) moved by drivers. A switching roll (2) is provided with a carrying body and rotated around a rotating axis, where the carrying body includes an outwardly directed lateral surface (3) with guide tracks (5a-5c) for the drivers. The guide tracks are formed as individual guiding contacts (4a, 4c) projecting from a plane of a lateral surface, where the guiding contacts section-wise contact with the drivers during a shifting process and designed as pins and end stopper.