Folding sofa-bed mechanism

Details Folding sofa-bed mechanism Folding sofa-bed mechanism

1981-05-18

1983-08-16

Zugel, Francis K.

Beds

Sofa bed

Link supported unfolding

5 28, 5 13, 5 44R, A47C 1704

Patent

active

043983111

ABSTRACT:
A folding bed frame for sofa-beds in which a plurality of frame sections, including a foot section, knee section, body section and head section are pivoted in end-to-end relation so as to be foldable between an extended bed-forming position and a retracted sofa seat-forming position; wherein front and rear support and guiding link assemblies coact to control movements of the body section and head section during movements to the extended bed-forming position and to the retracted sofa seat-forming position. The link assemblies are supported by front and rear anchor links, the front anchor link being pivotally supported at its inner end at a front pivot point on an anchor frame plate and the rear anchor link being a rocker lever pivotally supported between its inner and outer ends at a rear pivot point on the anchor frame plate in substantially horizontal alignment with the front pivot point. A control link is pivotally connected to the front anchor link on one side of the front pivot point and to an end of the rear anchor link on an opposite side of the rear pivot point. The mounting arrangement operates to move the frame sections, during folding and unfolding operations, through a path having greater floor clearance, and thus permits a number of advantageous changes such as increased bed length and greater depth of the space for the folded mattress, while still utilizing the restricted dimensions dictated by the furniture framing structure.

REFERENCES:
patent: 1945186 (1934-01-01), Frank
patent: 3150384 (1964-09-01), Helton
patent: 3868733 (1975-03-01), Spitz et al.

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