Piece of furniture convertible from a seat into a bed

Details Piece of furniture convertible from a seat into a bed Piece of furniture convertible from a seat into a bed

1993-02-04

1994-05-31

Trettel, Michael F.

Beds

Sofa bed

Reverting back

5 38, A47C 1716

Patent

active

053157222

ABSTRACT:
A piece of furniture convertible from a seat into a bed and having a seat portion and an adjoining back portion which is connected thereto by a hinge for enabling the seat portion and the back portion to rotate with respect to one another between an automatically stabilized seat position of the piece of furniture, wherein the angle between both portions is minimal, and a flat position of the piece of furniture, wherein the angle between both portions is maximal. Further there are provided legs for supporting the seat portion in the seat position and the seat portion and the back portion in the flat position of the piece of furniture. Located between the seat portion and the back portion is a locking device for locking the seat portion and the back portion with respect to one another in the seat position. The locking device is adapted to be unlocked automatically under the influence of gravity by canting the piece of furniture backwards with the back portion being directed towards the flat position and to be locked back automatically by rotating the back portion back from the flat position towards the seat position.

REFERENCES:
patent: 2210421 (1940-08-01), Martin
patent: 2324675 (1943-07-01), Burton
patent: 2337712 (1943-12-01), Fox
patent: 2343642 (1944-03-01), Burton
patent: 2754888 (1956-07-01), LaPalme
patent: 3634893 (1972-01-01), Hern et al.
patent: 5146640 (1992-09-01), Barton et al.

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