Beds – Sofa bed – Extension
Patent
1987-09-11
1989-09-19
Ramirez, Ramon O.
Beds
Sofa bed
Extension
5 37R, 5 22, 297 68, 297111, A47C 1706
Patent
active
048667951
DESCRIPTION:
BRIEF SUMMARY
The present invention concerns a piece of seating furniture convertible to a bed, comprising a stationary body and at least one articulated frame attached to the body and consisting of a rear back part and a front back part and of a seat part carried on a carriage by means of levers.
Depending on their principal purpose of use, the prior-art pieces of seating furniture of this type have either provided acceptable seating comfort but lacked any possibility of conversion to the bed position, or the piece of seating furniture has provided good sleeping comfort but very uncomfortable and hard seating comfort. Moreover, all prior-art constructions are highly complicated and require a number of draw and/or press springs in order to operate, which springs tend to become slack or be broken after they have been in operation for a period of time. Moreover, some of the prior-art pieces of seating furniture require expensive telescopic or spring-loaded supporting and carrying frames enabling them to be brought to the bed position.
From the Swiss Pat. No. 445,758, a piece of seating furniture convertible to bed position, of the type mentioned above, is known. In order to obtain a sufficient bed length, it has been necessary to make the dimension of the seat part from the front edge to the back abnormally long. The rear part of the back is also very long, so that in the lowered position it extends relatively far towards the rear from the rear wall of the piece of furniture, as a result of which the rear wall cannot be covered. The construction consists of heavy wooden frames, which make the handling of the piece of seating furniture unduly heavy. In view of making the handling of the piece of seating furniture somewhat easier, the rear part of the back is provided with a particular guide arrangement. This prior-art construction does not permit adjustment of the piece of furniture into a "floating" rest position.
The object of the present invention is to eliminate all of the above problems, which is achieved by means of a piece of seating furniture, which is characterized in that the rear part of the back of the articulated frame is significantly shorter than the front part of its back and, by the interposition of a further frame part, pivotably attached to the stationary body around a transverse shaft provided in the rear part of the body, the said further frame part being prevented by stop members from being pivoted to below the horizontal plane. At the front end of the seat part, a foot rest in itself known is provided, which can be affected and folded out by means of the position of the levers. The carriage which carries the seat part is provided with a pair of wheels resting against the floor at its front end and with a pair of wheels running along linear guides at its rear end, which said guides are arranged in an inclined plane in the lateral parts of the stationary body so that their topmost points are placed at the front edge of the piece of seating furniture.
Further characteristics of the invention come out from the accompanying claims 2 to 10.
In the following, the invention will be described in more detail with reference to the drawing, wherein
FIG. 1 is a schematical side view of an example of a piece of seating furniture in accordance with the invention, with the three main positions shown,
FIG. 2 is a more detailed view of the articulated frame in the bed position, and
FIG. 3 is a detail view of the articulated frame as it is being folded from the bed position into the rest position and the sitting position.
The piece of seating furniture convertible to bed in accordance with the present invention consists of a stationary body 1 and of at least one articulated frame 2 attached to the body, which said frame comprises a rear part 3 of the back, a front part 4 of the back, which is linked to the rear part 3 of the back and which is again linked to a seat part 5. A foot rest 8, which can be folded out by means of levers 6, 7, is mounted on the seat part 5. The articulated frame 2 is attached to the stationary
REFERENCES:
patent: 1634551 (1927-07-01), Moore
patent: 3169035 (1965-02-01), Fletcher
patent: 3974529 (1976-08-01), Johnson
patent: 4543675 (1985-10-01), Shrock
patent: 4620335 (1986-11-01), Dodgen
patent: 4669135 (1987-06-01), Gonzalez
patent: 4694514 (1987-09-01), Crossett
Olson Robert A.
OY BD Produkt AB
Ramirez Ramon O.
LandOfFree
Piece of seating furniture convertible to bed does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Piece of seating furniture convertible to bed, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piece of seating furniture convertible to bed will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-359353