Patent ID: 7367616

Claim:
A folding seat mountable to a vertical mounting surface and movable between a use position and a stowed position, the system comprising: a substantially planar seat having an upper seat surface and an opposite lower surface movable between the use position and the stowed position; a pair of guide followers extending from opposite sides of the seat; a pair of guide plates mountable to the mounting surface and each including an elongate guide slot that is oriented generally vertically when the guide plate is mounted to the mounting surface, the guide slot being configured for receiving one of the guide followers and configured to have a generally bulbous upper end that is laterally offset from the slot and includes upper and lower lobes; a substantially U-shaped frame member for supporting the lower surface of the seat and having opposite ends pivotally mounted at a fixed position below the seat when the seat is in the use position; a pair of bias struts, each having a first end pivotally mounted at a fixed position below the seat in the use position and a second end pivotally mounted adjacent to the lower surface of the seat, wherein, when the seat is in a stowed position, the seat is substantially parallel to the mounting surface with the lower surface facing away from the mounting surface and the upper seat surface facing the mounting surface, and when the system is in a use position, the seat is substantially perpendicular to the mounting surface; wherein when the seat is subjected to a force supplied by a user sitting on the seat, the force is sufficient to overcome an upward bias supplied by the bias struts so that the guide followers become oriented in the lower lobes of the bulbous upper ends of the guide slots to inhibit accidental return of the seat to the stowed position while the user is seated; and wherein when the user is no longer seated, the bias struts urge the guide followers into the upper lobes of the bulbous upper ends of the guide slots.