Electromagnetic clutch and opening and closing body drive device for vehicle

Abstract

An electromagnetic clutch includes: a rotation shaft that transmits a drive torque; a first rotation body that rotates integrally with the rotation shaft by being supported on the rotation shaft in a non-relatively rotatable manner; a second rotation body that is supported on the rotation shaft in a relatively rotatable manner in a position facing the first rotation body in an axial direction; an electromagnet that brings the first and second rotation bodies into pressure contact to connect the first and second rotation bodies in a manner capable of transmitting a torque by moving one of the first and second rotation bodies as an armature in an axial direction based on an electromagnetic attraction force generated by energization; and a gear portion that is provided on an outer periphery of at least one of the first rotation body or the second rotation body.

Dependencies are inferred from the claim text.