Motor cycle clutch

摘要

A clutch comprises an input part 3 into which the power of a crankshaft 2 is introduced, an output part arranged concentrically with the input part 3 and to be coupled to the input shaft of a transmission, a coupling body 5, a pressure plate 40 and a main diaphragm spring 41. The coupling body 5 comprises friction discs 20, 21 connected to the input part 3 and a driver disc 31 connected to the output part 4. The pressure plate 40 presses the friction discs 20, 21 and the driver disc 31 against one another. The main diaphragm spring 41 acts on the pressure plate 40 in such a way that the friction discs 20, 21 and the driver disc 31 are pressed against one another. The friction disc 21 is furthermore provided on its radial inside with undulations or teeth 21a. The input part 3 has retractable teeth 23 which come into engagement with the teeth 21a and permit joint rotation of the friction disc 21 in one direction of rotation but not in the other. <IMAGE>