Patent ID: 7861994

Claim:
A seat adjustment apparatus of a vehicle, comprising: two pairs of lifter links that extend along a direction of a width of a seat cushion and are spaced at a predetermined interval in a forward-rearward direction, the lifter links supporting the seat cushion and operating to selectively raise and lower the seat cushion; a cylindrical torque rod that extends along the direction of the width of the seat cushion, the torque rod being rotatably supported by a rotation support provided in one of the seat cushion and a base member arranged below the seat cushion, the torque rod interlocking the lifter links in one pair of the two pairs of the lifter links with each other; a torsion bar that is passed through the torque rod and includes a first end and a second end, the first end being fixed to one of the seat cushion and the base member, the torsion bar urging the lifter link corresponding to the second end in a direction in which the seat cushion is raised; and a coupling member including a first engagement portion passed through the torque rod and engaged with the torsion bar, a second engagement portion received in a slit groove extending from an end surface of the torque rod and engaged with the torque rod, and a third engagement portion arranged at a position radially outward from the second engagement portion and engaged with the rotation support.