Patent ID: 8550560
Filing Date: 2013-10-08
Classification: B60N

Abstract:
1. A seat reclining apparatus for a vehicle, comprising: a first frame constituting a framework of one of a seat cushion and a seatback of a seat for the vehicle, the first frame including a pair of side frames; a pair of first arms, each being connected to the first frame, the pair of first arms disposed at one side of the seat in a seat width direction; a second arm positioned between the pair of first arms and fixedly attached to a second frame constituting a framework of the other one of the seat cushion and the seatback; a pair of recliners joined to the second arm and to the pair of first arms in a manner that each of the pair of recliners is sandwiched by the second arm and by a corresponding one of the pair of first arms; a drive source that causes the pair of first arms and the second arm to pivot relative to each other to change a tilt angle of the seatback relative to the seat cushion, the drive source being connected to the pair of recliners to drive the pair of recliners; and a lock member that engages with the pair of side frames of the first frame and with the pair of first arms, wherein the pair of side frames of the first frame sandwich the pair of first arms and are connected to the pair of first arms in a manner that the pair of first arms is pivotable relative to the first frame about an axis identical to an axis of the pair of recliners, and wherein the lock member restricts a relative pivoting movement between the pair of side frames of the first frame and the pair of first arms in a state where a relative pivot angle between the first frame and the pair of first arms is at a predetermined angle.