Patent ID: 8220856

Claim:
A vehicle seat, comprising: a seat body; a seat rotation mechanism supporting the seat body on a vehicle floor such that the seat body is capable of substantially horizontally rotating between a first position and a second position; a gear forming member having an arcuate rotation gear that is arranged such that an arc center thereof corresponds to a rotation center of said seat body; a drive gear that is capable of meshing with the rotation gear; and an actuator for rotating the drive gear, wherein said gear forming member is provided to one of a rotational portion of a seat body side and a stationary portion of a vehicle floor side which portions are capable of rotating relative to each other when the seat body is rotated, wherein said drive gear is provided to the other of the rotational portion and the stationary portion, and wherein the seat body is capable of rotating when said drive gear and said gear forming member are relatively rotated upon rotation of said drive gear, the vehicle seat further including: a moving mechanism that is capable of relatively moving said drive gear and said gear forming member in a direction of a rotation restraint position such that said drive gear is placed in such a position so as to interfere with said gear forming member when said seat body rotates to said first position and when said seat body is urged to rotate in a direction of said second position while said drive gear is placed in such a position so as to not mesh with the rotation gear.