SEAT SLIDE APPARATUS FOR VEHICLE

摘要

A seat slide apparatus for a vehicle includes a tower rail, an upper rail, a memory base arranged above a bottom wall portion of the lower rail, a restriction piece holding the memory base so that the memory base is restricted from moving, a memory pin attached to the memory base in a manner that advance and retract of the memory pin relative to the memory base is allowed, the memory pin engages with the lower rail in a protruding state, the memory pin disengages in a retracted state, an interlocking mechanism pushing a lock member and the memory pin in a forward-folded state of a seatback, and a holding member holding the protruding state of the memory pin and allowing the memory base to move.

主权项

1. A seat slide apparatus for a vehicle, comprising:
a lower rail attached to a vehicle floor, the lower rail including a pair of vertical wall portions arranged side by side with each other to face each other in a width direction of the lower rail, a bottom wall portion connecting lower ends of the respective vertical wall portions to each other, a pair of flanges extending from upper ends of the respective vertical wall portions inwardly in the width direction to face each other and folded back towards the lower ends of the vertical wall portions, each of the flanges being provided with a plurality of fitting recessed portions arranged side by side with one another in a front/rear direction of a seat; an upper rail attached to the seat and connected to the lower rail in a manner that a relative movement of the upper rail relative to the lower rail is allowed, the upper rail including an accommodation portion provided at a rear end of the upper rail, the seat including a seatback that is provided at a rear end portion of the seat in the front/rear direction of the seat; a lock member selectively applying restriction on the relative movement between the lower rail and the upper rail; a memory base disposed between the flanges of the lower rail in the width direction and arranged above the bottom wall portion of the lower rail, the memory base being restricted from moving in the front direction of the seat relative to the accommodation portion in an accommodated state in which the memory base is accommodated in the accommodation portion; a restriction piece holding the memory base in the accommodated state by a biasing force so that the memory base is restricted from moving in a rear direction of the seat relative to the accommodation portion; a memory pin attached to the memory base in a manner that advance and retract of the memory pin in the width direction relative to the memory base is allowed, the memory pin being fitted in one of the fitting recessed portions of the lower rail so that the memory pin engages with the lower rail in a case where the memory pin is in a protruding state in which the memory pin protrudes outwardly in the width direction, the memory pin being disengaged from one of the fitting recessed portions in a retracted state in which the memory pin is retracted inwardly in the width direction so that the memory pin disengages from the lower rail; a biasing member biasing the memory pin in a direction in which the memory pin retracts inwardly in the width direction; an interlocking mechanism, in a forward-folded state of the seatback, pushing the lock member in a direction in which the restriction on the relative movement of the upper rail relative to the lower rail is released and pushing the memory pin so that the memory pin protrudes outwardly in the width direction; and a holding member holding the protruding state of the memory pin and allowing the memory base to move in the rear direction of the seat relative to the accommodation portion against the biasing force of the restriction piece, the holding member releasing the protruding state of the memory pin in a case where the holding member is pushed by the upper rail moving in the rear direction of the seat.