Seat frame and stowable vehicle seat with the same

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, and
• a 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.