US Patent 7762756 Lift and moveable underride

The invention provides a moveable underride system that may be used with lifts such as stow lifts. The underride system includes an underride member and a linkage mechanism for coupling the underride member to a support frame, wherein the linkage mechanism moves the underride member between an extended position and a retracted position. In the extended position the underride member is at a first distance from the frame, and in the retracted position the underride is at a second distance from the frame, such that the first distance (for the extended position) is larger than the second distance (for the retracted position).