Patent ID: 8381891

Claim:
A friction clutch transmitting a drive force of an engine, the friction clutch comprising: a clutch housing adapted to be driven to rotate by the engine, the clutch housing including a first plate; a clutch boss including a second plate, the second plate being operatively disposed relative to the first plate in a predetermined direction; a pressure plate arranged to rotate with the clutch housing, the pressure plate configured to press the first plate into the second plate by moving in the predetermined direction; a clutch spring operatively coupled to the pressure plate and applying a biasing force via the pressure plate in a direction of causing the first plate and the second plate to contact each other; a retainer having a substantially circular shape mounted onto the clutch housing away from the pressure plate and receiving a reaction force to the biasing force of the clutch spring by supporting a first end of the clutch spring opposite the pressure plate; and a retaining ring having a substantially annular shape and including a notch extending therethrough in a radial direction, the retaining ring being fitted into an inner peripheral side of the clutch housing and configured to secure the retainer on the clutch housing; wherein the retainer includes at least one stopper abutting a circumferentially inward surface of the retaining ring so to suppress the retaining ring from deforming radially inward within the clutch housing.