Patent ID: 8146978
Filing Date: 2012-04-03
Classification: B60N

Abstract:
1. A seat slide device for a vehicle comprising: a lower rail which is mounted on a vehicle floor; an upper rail which is mounted on a vehicle seat and movable relative to the lower rail; a lock member which locks the relative movement between the lower rail and the upper rail; a memory piece mounted in the lower rail which is engageable with and disengageable from the lower rail; a release lever releasing the restriction of the relative movement between the lower rail and the upper rail by the lock member in association with a frontward reclining movement of a seatback of the vehicle seat; a memory piece release lever operatively connected with the release lever and engaging the memory piece with the lower rail under the restriction condition of the relative movement between the lower rail and the upper rail by rotational operation of the release lever being released; a release handle provided separately from the release lever and connected to the lock member which releases the restriction of the relative movement between the lower rail and the upper rail by the lock member; a first receiving portion provided on the upper rail and moving the memory piece in a relative movement direction of the upper rail by following the movement of the upper rail by contacting with the memory piece and allowing the memory piece to move relative to the upper rail by releasing the contact with memory piece; and a pressing piece being formed with the memory piece release lever which engages the memory piece with the lower rail by contacting with the memory piece in association with the frontward reclining movement of the seatback of the vehicle seat and allows the memory piece to move relative to the lower rail by releasing the contact with the memory piece in association with the relative movement between the lower rail and the upper rail when the seat returns from the frontward reclining position to an original position, wherein the lower rail includes a first pair of side walls and a bottom wall which connects the first pair of side walls to each other, the upper rail includes a second pair of side walls and a cover wall which connects the second pair of side walls to each other, a memory plate including the first receiving portion is positioned between the second pair of side walls of the upper rail, and wherein the memory piece includes a slide body slidably supported on the bottom wall of the lower rail in a longitudinal direction of the lower rail and provided between the second pair of side walls of the upper rail, an engaging body formed on the slide body and allowing contact with the memory plate at one end thereof and engageable with the bottom wall of the lower rail at the other end thereof and a spring accommodated in the slide body and always urges the engaging body toward the direction where the engaging body is disengaged from the lower rail.