Abstract: A retractable bed includes a self-standing enclosure frame having tracks with curved segments at opposite ends of the enclosure. A mattress support frame formed of interconnected hinged sections has rollers which engage the tracks such that the mattress frame slides between a retracted position within the enclosure and a sleeping position extending from the enclosure. The mattress frame is oriented to move sideways into and out of the enclosure. A motor bracket is pivotally connected to the enclosure frame, has a motor mounted thereon, and has an elongated threaded shaft engaged with the motor. A nut arm is pivotally connected to the mattress frame, and a nut on a free end of the arm is threaded onto the shaft. Rotation of the shaft moves the mattress frame along the tracks for extension and retraction. Pivoting of the drive assembly accommodates movement of the mattress frame around the curved segments of the tracks.

Abstract: A convertible sofa-bed arrangement includes a main mounting frame in the form of a sofa and a mattress supporting frame extensible and retractable relative to the main mounting frame on track members mounted on inner portions of the main mounting frame side arms. The mattress supporting frame has opposite side frame members with front portions thereof rigid and rear portions thereof comprising pivotally interconnected link sections for curving upwardly and retracting into an elongate cavity within the sofa backrest. The mattress supporting frame is driven inwardly and outwardly of the main mounting frame by a cable and motor arrangement utilizing a plurality of gripping arms, pulleys and a winding sheave driven by the motor to draw the mattress supporting frame inwardly to a sofa position and outwardly to a bed position. A switch is connected to the motor for stopping, starting and reversing actions.