Patent ID: 6161231
Filing Date: 2000-12-19
Classification: A47C

Abstract:
A seating support subassembly for use in a sleeper sofa including a seating base secured substantially rigidly to the sofa, comprising:A. an outer seat rail;B. an inner seat rail that is spaced-apart from and substantially parallel to the outer seat rail and, together with the outer seat rail, defines a seating support plane;C. a suspension member spanning the space between the outer and inner seat rails in the seating support plane; andD. at least two support rails connected adjacent their opposite ends to the outer and inner seat rails that:i. rigidly maintain the outer and inner seat rails in their spaced-apart relationship,ii. contact the seating base to maintain the seating support plane at a predetermined height above the seating base when the seating support subassembly is stowed into the sofa in a seating position, andiii. in the seating support plane, lack significant rigid structure between the outer and inner seat rails.