Beds – Sofa bed – Reverting back
Patent
1985-04-10
1987-03-24
Smith, Gary L.
Beds
Sofa bed
Reverting back
5 38, 5 41, 5 47, 5 51B, 297440, A47C 1704
Patent
active
046513639
ABSTRACT:
A mechanism for a convertible seating/sleeping article of furniture has a base which moves on a floor, a seat support member supported on the base by a scissors linkage, and a back support member which is connected to the seat support member by a first pivot. A back-lowering link is pivotally connected at second and third pivots, respectively, to one of the scissors links and to the back support member. When the mechanism is in its seating configuration, the first pivot is near a line which extends between the second and third pivots to prevent inadvertent movement of the members to their seating positions.
A support leg is pivoted at the rear of the back support member, and a link swings the support leg outwardly when the back support member moves to its sleeping position.
The seat-supporting scissors linkage includes a first link which is in a same vertical plane as the base, and a pair of parallel links which are pivoted to and are on opposite sides of the first link.
When installed in an article of furniture, the seat support members of the mechanisms are connected to a seat frame, and the back support members are connected to a back frame. In one type of sofa, the mechanisms are part of a cushion-supporting assembly which is movable relative to a frame assembly which has a back frame and a side frame for enclosing the rear and sides of the cushion-supporting assembly. In another type of sofa, relative movement between the back and seat support members in the seating position is prevented by connecting them to detachable side arm members.
REFERENCES:
patent: 2214078 (1940-09-01), Feldman
patent: 2326196 (1943-08-01), Bell
patent: 2636187 (1953-04-01), Poskin
patent: 2751605 (1956-06-01), Sogge
patent: 2847684 (1958-08-01), Pompon
patent: 3188134 (1965-06-01), Nixon
patent: 3657747 (1972-04-01), Rogers, Jr. et al.
patent: 3973800 (1976-08-01), Kogan
patent: 4001901 (1977-01-01), Quakenbush
Smith Gary L.
Trettel Michael F.
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