Patent ID: 7036646
Filing Date: 2006-05-02
Classification: F16D

Abstract:
1. A wet-type multiple disc clutch in which a clutch plate set having a plurality of friction plates and a plurality of separator plates alternately provided therein is interposed between a clutch case and a clutch hub, an oil pressure piston serving to fasten said clutch plate set is slidably retained in a cylinder chamber formed between an outer cylindrical member and an inner cylindrical member of said clutch case, and a canceler for defining a centrifugal oil pressure cancel chamber between said oil pressure piston and said clutch case is secured on the inner cylindrical member of said clutch case through a stop ring, the wet-type multiple disc clutch comprising: stop ring fall-out preventing means for preventing a fall of said stop ring, wherein said stop ring fall-out preventing means comprises a step portion which is formed on the inner cylindrical member of said clutch case for restricting movement of said canceler toward said oil pressure piston side, and a detention portion, including a detention member formed on said canceler, for restricting size expansion of said stop ring when said canceler is at a position in which it is stopped by said step portion.