Seat frame and stowable vehicle seat with the same

摘要

Provided are a seat frame and a stowable vehicle seat which enables high assembling work efficiency and easy stowing operation. There are provided a reclining mechanism, a seat slide mechanism which slides a seat bottom frame, a slide lock mechanism which prohibits or allows the operation of the seat slide mechanism in cooperation with the reclining mechanism, a striker lock mechanism, and an assist mechanism which assists an operation of stowing and returning a stowable vehicle seat. The seat slide mechanism includes a lower rail, an upper rail, and a slide biasing member which automatically slides the upper rail in cooperation with a tilting movement of a seat back frame to a predetermined angle upon stowage of the stowable vehicle seat. The seat slide mechanism and the slide lock mechanism are mounted to the seat bottom frame.

主权项

1. A seat frame provided in a stowable vehicle seat which is tipped up to be stowed in a vehicle floor in a state where a seat bottom frame and a seat back frame are folded, the seat frame comprising:
a reclining mechanism which supports the seat back frame tiltably with respect to the seat bottom frame; a seat slide mechanism which slides the seat bottom frame in a front to back direction; a slide lock mechanism which prohibits or allows an operation of the seat slide mechanism in cooperation with the reclining mechanism; a striker lock mechanism which locks a rear portion of the seat bottom frame to the vehicle floor and regulates a pivoting of the stowable vehicle seat; an assist mechanism which assists an operation of stowing and returning the stowable vehicle seat; and an interlock mechanism which is provided separately from the striker lock mechanism to regulate a tipping-up of the seat frame, wherein: the seat slide mechanism includes:
a lower rail which extends in a front to back direction of a vehicle body,an upper rail which slidably engages with the lower rail, anda slide biasing member which automatically slides the upper rail in cooperation with a movement in which the seat back frame is inclined to a predetermined angle by the reclining mechanism when stowing the stowable vehicle seat, the seat slide mechanism and the slide lock mechanism are mounted to the seat bottom frame; the slide lock mechanism sets or cancels a slide lock for locking a movement of the upper rail movably provided in the lower rail by the seat slide mechanism, the striker lock mechanism locks a rear portion of the lower rail of the seat slide mechanism to the vehicle floor and regulates pivoting of the seat frame, and the interlock mechanism includes a mechanism which fixes the seat frame to the vehicle body and is operated when the seat frame is positioned at a stowing preparation position to release the seat frame from the vehicle body.