Piece of furniture for sitting and lying

Details Piece of furniture for sitting and lying Piece of furniture for sitting and lying

1979-11-14

1981-07-14

Nunberg, Casmir A.

Beds

Sofa bed

Reverting back

5 68, 5191, A61G 706, A41C 1900

Patent

active

042778581

ABSTRACT:
A piece of furniture for sitting and lying, more particularly a sickbed, having a horizontal surface divided into head, central and foot portions. A stationary frame extends at least the length of the central portion and the head and foot portions are pivotally mounted on the stationary frame about horizontal axes so they may be adjusted to horizontal and inclined positions by shifting the weight of the user's body and can be fixedly positioned by locking devices. A spring device, such as a torsion spring, equalizes the weight of the user on the head portion and the spring device is adjustable to control the initial stress applied to the head portion. The central portion is pivotally connected to the head portion through a connection that allows for end play and provides for leverage so that as the head portion is shifted to an inclined position, the central portion automatically moves to a proper reverse sloping position to accommodate sitting.

REFERENCES:
patent: 3353193 (1967-11-01), Greiner
patent: 3877088 (1975-04-01), Bouman
patent: 3974530 (1976-08-01), Lusch et al.
patent: 4100630 (1978-07-01), Klose et al.

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