Patent ID: 8141954

Claim:
A switching mechanism of a vehicle seat having a seat cushion and a seat back, comprising: a base element, an output arm pivotally connected to the base element via a first pivot shaft, an input arm having a force input point and pivotally connected to the output arm via a second pivot shaft as a rotational center, and an input arm biasing member that is arranged and constructed to normally bias the input arm in a normal rotational direction, so that the input arm can contact the first pivot shaft at a middle portion of the input arm between the force input point and the rotational center, wherein when a normal directional input force is applied to the input arm, the input arm can be rotated around the first pivot shaft in the normal rotational direction while contacting the first pivot shaft, so that the second pivot shaft can pivot about the first pivot shaft, thereby rotating the output arm about the first pivot shaft with the input arm to rotate the seat back from a seating position into one of a walk in position and a folded position, and wherein when a reverse directional input force is applied to the input arm, the input arm can be independently rotated in a reverse rotational direction about the second pivot shaft against a spring force of the input arm biasing member to rotate the seat back towards the seating position.