Patent ID: 6908156
Filing Date: 2005-06-21
Classification: B60N

Abstract:
1. A round recliner mounted in a seat of a vehicle for controlling an angle of inclination of the back of the seat, the recliner comprising: a sector gear including a circular shaft hole formed so that a rotating shaft is inserted therethrough, a circular inner gear part engaged with outer gear parts of lock gears, a back connection part having a plurality of connection protrusions for connecting the back connection part to the back of the seat, the connection protrusions being spaced a uniform angular distance from each other and also spaced a uniform radial distance from the circular shaft hole, and a lock gear receiving part formed at the inner surface of the sector gear for receiving three lock gears and an actuating cam; a holder combined with the sector gear, the holder including a cam receiving part for receiving connection protrusions of the actuating cam, three lock gear supporting members for supporting the three lock gears, respectively, so that the lock gears are locked or released, a seat connection part having first three connection protrusions and second three connection protrusions for connecting the seat connection part to the seat, each of the first connection protrusions having a diameter different from each of the second connection protrusions, the first connection protrusions being spaced a uniform angular distance from each other and also spaced a uniform radial distance from the center of the seat connection part, the second connection protrusions being spaced a uniform angular distance from each other and also spaced a uniform radial distance from the center of the seat connection part, the first and second connection protrusions being alternately arranged, and a lock gear receiving part formed at the inner surface of the holder for receiving the lock gears; the actuating cam disposed between the sector gear and the cam receiving part of the holder for locking the lock gears in the sector gear or releasing the lock gears from the sector gear by rotation of the rotating shaft; the three lock gears engaged with the inner gear part of the sector gear so that the lock gears are locked or released; a return spring for maintaining the locked state of the actuating cam; and a fixing holder for preventing separation of the assembled sector gear and holder from each other.