Patent ID: 11965562
Assignee: NTN CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 6:
7. The rotation transmission device according to claim 1, wherein the clutch mechanism includes:
a cage retaining the engaging elements;
a neutral spring configured to be elastically deformed by relative rotation of the cage relative to a first member of the inner member and the outer member;
an armature rotationally fixed relative to the cage;
an electromagnet axially opposed to the armature;
a rotor axially opposed to the armature with the rotor rotationally fixed relative to a second member of the inner member and the outer member; and
a separation spring pressing the armature in a direction away from the rotor,
wherein the engaging elements are arranged so as to be movable, due to the relative rotation of the cage, between an engagement position, in which the engaging elements are engaged with the outer member and the inner member, and a neutral position, in which the engaging elements are not engaged with the outer member and the inner member,
wherein the armature is configured to be magnetically attracted to the rotor when the electromagnet is energized, and
wherein the movement of the inner member toward the second axial end relative to the inner ring is restricted by the second snap ring to within a range smaller than an air gap between the rotor and the armature.