Patent ID: 7441840
Filing Date: 2008-10-28
Classification: B60N

Abstract:
1. A reclining apparatus for a vehicle seat, comprising: a lower plate provided at each side of either one of a seat cushion and a seat back; an upper plate provided at each side of the other of the seat cushion and the seat back and rotatably supported by each lower plate; a cam operatively connected to each lower and upper plate for restricting or permitting rotation of each upper plate relative to each lower plate as each cam rotates; a connecting shaft fitted to each cam with a fit clearance for integrally rotating each cam in order to permit the rotation of each upper plate relative to each lower plate according to operational force inputted to the connecting shaft; and a spring wound around a rotational axis of each cam, a first end of each spring engaged with each lower plate and a second end of each spring engaged with each cam, for biasing each cam in a rotational direction in which the rotation of each upper plate relative to each lower plate is restricted, the spring including a pressing portion which contacts the connecting shaft for pressing the connecting shaft in a first rotational direction so that a play corresponding to the fit clearance between each cam and the connecting shaft can be eliminated.