Patent ID: 11933368
Assignee: KABUSHIKI KAISHA F.C.C.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 5:
6. The clutch device according to claim 2, wherein
the clutch center includes a plurality of center-side cam portions each including a center-side assist cam surface operable to generate a force in a direction from the pressure plate toward the clutch center in order to increase the pressing force between the input-side rotating plates and the output-side rotating plates upon rotation relative to the pressure plate;
the oil passage includes a center-side recess recessed radially outward from the inner peripheral surface of the outer peripheral wall;
the center-side recess includes a first center-side recess located at a side of the center-side assist cam surface in the circumferential directions; and
a length of the first center-side recess in the circumferential directions is longer than a length of the first pressure-side recess in the circumferential directions.