Sofa bed mechanism

Details Sofa bed mechanism Sofa bed mechanism

1982-09-07

1985-01-22

Smith, Gary L.

Beds

Sofa bed

Unfolding seat

5 13, A47C 1704

Patent

active

044942583

ABSTRACT:
A sofa bed mechanism comprising a foldable bed frame having side and end rails and a back support slat extending between the side rails across the width of the bed frame at a position corresponding to the upper back area of a user in a sleeping position. The back support slat is bowed upwardly in its natural state and moves downwardly under load to yieldably resist the load and exert an outwardly directed force on the side rails. The slat has a top surface of substantial width so that it adds firmness to the bed without interfering with sleeper comfort. The invention further includes legs of semicircular cross section supporting the bed frame on the floor.

REFERENCES:
patent: 2615502 (1952-10-01), Schnieder
patent: 3067438 (1962-12-01), Degen
patent: 3553745 (1971-01-01), Sproll
patent: 3854153 (1974-12-01), Fadler et al.
patent: 4080672 (1978-03-01), Eakins
patent: 4173803 (1979-11-01), Kennedy
patent: 4301559 (1981-11-01), Geenberghe

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