Patent ID: 6669296
Filing Date: 2003-12-30
Classification: B60N

Abstract:
A seat reclining device comprising:a first arm supported by one of a seat cushion and a seat back; a second arm supported by the other of the seat cushion and the seat back, the second arm being rotatably supported with respect to the first arm; a first circular concave portion formed in the first arm; a second circular concave portion formed in the first arm inside the first concave portion; a pawl provided with a first outer gear portion and a second outer gear portion each having a plurality of gear teeth; a first inner gear portion having a plurality of gear teeth formed on an inner peripheral portion of the first circular concave portion, the first inner gear portion being engageable with the first outer gear portion; and a second inner gear portion having a plurality of gear teeth formed on an inner peripheral portion of the second circular concave portion, the second inner gear portion being engageable with the second outer gear portion.