Patent ID: 6641217
Filing Date: 2003-11-04
Classification: B60N

Abstract:
A seat recliner for a vehicle comprising:a lower arm adapted to be fixed with respect to a seat cushion; an upper arm adapted to be fixed with respect to a seat back and rotatably supported by the lower arm; an inner gear portion formed at the upper arm; a pawl slidably supported by the lower arm and engageable with the inner gear portion; a pressure member rotatably supported by the lower arm to urge the pawl into engagement with the inner gear portion; a projecting portion formed on a back surface of the pawl for engagement with the pressure member; a cam surface formed on the pressure member for engagement with the projecting portion; a first contact portion formed on one side of the cam surface of the pressure member for contacting the back surface of the pawl, with a gap defined between the back surface of the pawl and the first contact portion in the absence of a load over a predetermined level being applied to the upper arm; and a second contact portion formed on an opposite side of the cam surface of the pressure member for contacting the back surface of the pawl, with a gap defined between the back surface of the pawl and the second contact portion in the absence of a load over a predetermined level being applied to the upper arm.