Beds – Sofa bed – Link supported unfolding
Patent
1976-09-27
1978-01-17
Gilliam, Paul R.
Beds
Sofa bed
Link supported unfolding
5 28, 5 51D, A47C 1704, A47C 1714
Patent
active
040683281
ABSTRACT:
The following specification discloses a chesterfield that is convertible into a double bed without a requirement for changing any part of the chesterfield frame and which has the normal seat depth for sitting comfort. The bed is stored beneath the seat cushions and is foldable inwardly lengthwise of the chesterfield with part of the folded bed storable beneath the back rail or deck of the seat. The bed is folded lengthwise and consists of a pair of clam-shell appearing tube members pivotably attached to a pair of channel members with link fabric for holding a mattress stretched between the tubes and a mid-cross tube. The channels and tubes form a `U` shape when folded down into the bottom of the chesterfield with the opening of the `U` facing the back of the chesterfield. The bed frame is held to the lower side frames of the chesterfield by a bearing bracket through a chain of links connected together in pivotable foldable relation. A `U` shaped torsion tube is pivotably connected to each side bracket across the bottom of the chesterfield with the arms of the `U` connected to the chain of links to become the legs of the bed proximate the chesterfield when the bed is folded out. Another pair of legs is connected to the chain of links to fold out with the unfolding of the upper half of the clam-shell to form the front legs of the bed. The linkages from the front legs through the torsion tube to the bracket form an upwardly thrusting bridge to maintain the bed in load bearing rigidity in the out-folded position without the necessity for a mid-section support or leg.
REFERENCES:
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patent: 3431567 (1969-03-01), Spitz et al.
patent: 3654642 (1972-04-01), Barabas
patent: 3771178 (1973-11-01), Inman
patent: 3934281 (1976-01-01), Brindisi
Gilliam Paul R.
Grosz Alex
Hill K. Maxwell
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