Sofa sleeper having sinuous spring reinforced shoulder area

Abstract

A sofa sleeper comprises a stationary wooden sofa frame and a foldable sofa bed assembly mounted to the frame which is adapted to move between a fully folded or retracted position within the frame to provide a seat when used as a sofa and an extended unfolded position when used as a bed. The foldable sofa bed assembly includes pivotally interconnected head, body, intermediate and foot frame sections each including a pair of opposed side rails to which a wire fabric or plastic sheeting material is attached. The body frame section includes a pair of opposed cross tie members which extend between the side rails and are adapted to support a plurality of transversely spaced, longitudinal extending sinuous wire springs. Preferably, a rigidity bar extends between the cross tie members to maintain the cross tie spacing. The body frame section including the cross tie members and the longitudinally extending sinuous wire springs are located immediately beneath the mattress supporting fabric or plastic sheeting material so as to provide an improved cushion foundation when the sofa sleeper is used as a seating surface and an improved mattress foundation when the sofa sleeper is used as a bed.

Dependencies are inferred from the claim text.