Beds – Sofa bed – Reverting back
Patent
1980-08-08
1982-12-28
Frazier, Roy D.
Beds
Sofa bed
Reverting back
5 37C, 5 47, 5 55R, 5 57B, A47C 1716
Patent
active
043653693
ABSTRACT:
A three cushion convertible seat-bed is disclosed. A single seat has first and second panels (12,14) for the seat back and seat bottom mounted on a seat base (10) and a third panel (16) pivotally coupled with the seat back. A conversion mechanism (18) includes a quadrant plate (80) which is pivotally supported on the base (10). The lower part of the seat back is rigidly connected (84,86) with the quadrant plate (80) and the rear edge of the seat bottom is pivotally coupled (124) with the quadrant plate so that the three panels can be unfolded from the seat orientation to a bed orientation. A first set of latches (A, B, D) holds the conversion mechanism (18) in the seat orientation and are released sequentially by moving an operating handle (22) in one direction. This same motion of the operating handle (22) causes an actuating means (172,170) to thrust the third panel (16) rearwardly toward the bed orientation as the first and second panels (12,14) are unfolded. The quadrant plate (80) pivots during unfolding and shifts the panels forwardly in the bed orientation to reduce the space required rearwardly of the seat. When the panels reach the bed orientation, a second set of latches (C,E) are latched to hold the mechanism (18) in the bed orientation and to provide stiffening of the structure. To convert from bed to seat orientation, the operating handle (22) is moved in the same direction and the operator pulls on a strap (76) near the juncture of the second and third panels (14,16). The movement of the operating handle (22) unlatches the second set of latches (C,E) sequentially and the second panel (14) is pulled toward an erect position. This rotates the quadrant plate (80) and pulls the front panel (12) downwardly and to the rear and causes the third panel (16) to swing forwardly. This action causes the first set of latches (A,B,D) to relatch and hold the mechanism (80) in the seat orientation.
REFERENCES:
patent: 828215 (1906-08-01), Kelly
patent: 2656877 (1953-10-01), Woller
patent: 3807790 (1974-04-01), Erard
patent: 3844608 (1974-10-01), Freedman
patent: 3974529 (1976-08-01), Johnson et al.
Frazier Roy D.
Trettel Michael F.
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