Patent ID: 8042655

Claim:
A lift system configured for use with a vehicle, the lift system comprising: a platform configured to raise and lower cargo to and from a vehicle bed; and a roll stop system comprising: an inboard roll stop member movable between a raised, essentially upright position and a lowered, essentially horizontal position; a driving mechanism comprising a driving lever and a linkage cable, the linkage cable coupled between the driving lever and the inboard roll stop member for rotating the inboard roll stop member between the raised position and the lowered position in response to movement of the driving lever; and a spring member engaging a portion of the linkage cable between the driving lever and the inboard roll stop member, such that the spring member exerts a force on the linkage cable during a movement of the inboard roll stop member and/or the driving lever; wherein the linkage cable exerts a compressive force on the spring member in response to a motion of the inboard roll stop member when the driving lever remains stationary; and wherein the linkage cable exerts a compressive force on the spring member in response to a motion of the driving lever when the roll stop member remains stationary.