Convertible sofabed with improved user comfort

Beds – Sofa bed – Link supported unfolding

Patent

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Details

5 51E, 5 54, A47C 1713, A47C 1700

Patent

active

045758832

ABSTRACT:
A convertible sofabed which can be used as a bed in its extended condition and as a sofa in its collapsed condition includes a frame which has a lower frame portion, an upper frame portion, and two upright frame portions as seen in the collapsed condition, the upright frame portions being situated at the front portion of the sofabed and interconnecting the upper and lower frame portions. A raise tube is mounted on the upright frame portions at a considerable distance downwardly from the top regions of the latter as seen in the collapsed condition. A border wire is pivotally mounted on the upper frame portion and supports a front edge portion of a cushion, while the remainder of the cushion rests on a deck resiliently mounted on the frame and serving to support a mattress. The border wire is resiliently supported on the raise tube by a plurality of substantially Z-shaped springs each of which includes one end portion that is introduced into two aligned depressions of the raise tube and passes through the interior of the raise tube between the depressions, and another end portion which is connected to the border wire by a split sleeve which is crimped around the border wire and the other end portion of the spring. A pedestal which receives the frame in its collapsed condition has an elastically yieldable top portion on which the edge portion of the cushion rests as well.

REFERENCES:
patent: 2505989 (1950-05-01), Pokorny et al.
patent: 2727250 (1955-12-01), Fox
patent: 2823389 (1958-02-01), Coopersmith
patent: 4068328 (1978-01-01), Gerth

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