Patent ID: 7651165

Claim:
A seat reclining apparatus for a vehicle, comprising: a first plate mounted on one of a seat cushion and a seat back and including inner teeth; a second plate mounted on the other one of the seat cushion and the seat back and supports the first plate to be rotatable; a pole directly and movably supported by the second plate and including outer teeth engageable and disengageable with the inner teeth of the first plate; and a first guide disposed at the second plate, the first guide including a side surface comprising a first pole sliding surface, a second pole sliding surface and a recess, wherein the first pole sliding surface and the second pole sliding surface are adjusted to slidably come in contact with a first flat side surface of the pole, the second pole sliding surface is disposed at a radially outer side of the first pole sliding surface relative to a rotational axis of the first and second plates, and the recess is disposed between the first pole sliding surface and the second pole sliding surface.