CLUTCH DEVICE AND SEAT DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a clutch device which restricts relative rotations between a rotation member and a housing by frictional contact of an engagement piece.SOLUTION: An input side member 11 includes a first cam 26 having a substantially discoid shape and a cup shaped housing 20. An output side member 12 includes a cup shaped second cam 30. The first cam 26 is disposed in a cylindrical part 41a formed in a rotation transmission member 41. The rotation transmission member 41 having the cylindrical part 41a is fixed to a cylindrical part of the second cam 30. The second cam 30 is disposed in a cylindrical part of the housing 20. A first engagement piece 29 is provided in a space formed by an outer peripheral surface of the first cam 26 and an inner peripheral surface of the cylindrical part 41a of the rotation transmission member 41. A second engagement piece 31 is provided in a space formed between an outer peripheral surface of the second cam 30 and an inner peripheral surface of the housing 20.