Folding bed frame structure for sofa beds or the like

Details Folding bed frame structure for sofa beds or the like Folding bed frame structure for sofa beds or the like

1981-06-19

1983-08-23

Britts, Ramon S.

Beds

Sofa bed

Link supported unfolding

5 29, A47C 1714

Patent

active

043995713

ABSTRACT:
A folding sofa bed frame having head, intermediate and foot bed sections pivotally connected end-to-end and supported and constrained by a linkage arrangement to move in a predetermined pattern between a folded position and a horizontally extended position. A link supports the head and main intermediate sections at their pivotal connection and an actuating link controls movement of the head section, the head section being braced in a horizontal disposition in the extended position by the superposed abutment of the support link by the actuating link. To facilitate shipping, the head section is partially foldable and pivotable independently of the linkage arrangement and the other bed sections to permit folding thereof between the main intermediate and foot sections during folding movement of the frame from its extended to its folded position. The linkage arrangement includes a rear support link having a fixed pivot at one end and a traveling pivot at the other, a fixed stop being disposed to abut the rear support link during an initial portion of movement of the frame from the folded to the extended position and during the corresponding final portion of movement from the extended to the folded position to fix the traveling pivot and cause the frame to pivot thereabout in a tighter, more compact path during such initial and final movements.

REFERENCES:
patent: 1288682 (1918-12-01), Richardson
patent: 3281870 (1966-11-01), Katz
patent: 3284811 (1966-11-01), Rogers
patent: 3395409 (1968-08-01), Eakins
patent: 3868733 (1975-03-01), Spitz et al.
patent: 3984883 (1976-10-01), Wong
patent: 4253205 (1981-03-01), Mikos

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