Shift finger trip cam for alternating gearchange mechanism

摘要

The cylinder axis (40-40), ie. the neutral position of the sliding selector shaft, is parallel to the sidewalls (23,24) of the groove, and parallel to the plane of symmetry, and at right angles to the central axis (21-21) of the trip cam (11). The other cam surface (38,39) is also cylindrical and has a cylinder axis coinciding with the central axis. The cylinder axis pointing at right angles to the central axis lies on a centre plane of the trip cam, at right angles to the plane of symmetry (22-22). The radius of the cam surface whose cylinder axis is at right angles to the central axis is greater than half the width of the trip cam, measured in the direction of the central axis.