Support mechanism of vehicle seat

摘要

A support mechanism for support of a seat cushion (11) of a passenger seat (10a) at one side thereof on a vehicle compartment floor, which includes a side leg (21) pivotally mounted to a support frame (11a) of the seat cushion (11) at one side thereof to be retained in an upright position and housed in a space under the bottom of the seat cushion, a turnover spring (26) engaged at one end thereof with the support frame of the seat cushion and at the other end thereof with the side leg (21) for biasing the side leg toward its folding direction or set-up direction when it is turned over during pivotal movement of the side leg, a locking device (22, 24) for restricting pivotal movement of the side leg (21) placed in its upright position and for retaining the side leg in its upright position; and a release lever (23) associated with the locking device for releasing a locked condition of the side leg.