Patent ID: 11946513
Assignee: KABUSHIKI KAISHA F.C.C.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. A clutch device to allow or interrupt transfer of a rotation driving force of an input shaft to an output shaft, the clutch device comprising:
a clutch center housed in a clutch housing holding a plurality of input-side rotating plates to be rotationally driven by rotational driving of the input shaft, the clutch center holding a plurality of output-side rotating plates and being operable to be rotationally driven together with the output shaft, the input-side rotating plates and the output-side rotating plates being alternately arranged; and
a pressure plate movable toward or away from the clutch center and rotatable relative to the clutch center, the pressure plate being operable to press the input-side rotating plates and the output-side rotating plates; wherein
the clutch center includes:
an output shaft holding portion to which the output shaft is coupled;
an outer peripheral wall located radially outward of the output shaft holding portion;
a plurality of center-side fitting teeth holding the output-side rotating plates, projecting radially outward from an outer peripheral surface of the outer peripheral wall, and arranged in circumferential directions; and
a recess that is recessed in a first direction from an end surface of at least one of the center-side fitting teeth in a second direction, a direction in which the pressure plate moves toward the clutch center being a first direction, a direction in which the pressure plate moves away from the clutch center being the second direction; and

the recess is open toward an inner peripheral surface and the outer peripheral surface of the outer peripheral wall.