Chairs and seats – Bottom or back – Made of individual elongated members extending across a...
Patent
1998-03-25
1999-11-02
Cuomo, Peter M.
Chairs and seats
Bottom or back
Made of individual elongated members extending across a...
2972843, A47C 702
Patent
active
059756411
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a furniture device for body support, in particular seat or relaxing furniture, comprising body support flats which each consist of elongate supporting elements coupled to one another, arranged in parallel and oriented transversely relative to a longitudinal axis of the device, a frame and coupling means for coupling the abovementioned support flats to the abovementioned frame.
TECHNICAL BACKGROUND
Sitting down or lying down ought to have a relaxing effect. The leg muscles can relax, since they do not have to carry any weight in this position. By contrast, the back muscles could relax, provided that they are not put under stress when the user adopts the desired posture.
When sitting on a seat, only a small part of the back is in actual contact with the back of the seat. The back muscles are continually tensed in order to keep the back in the desired position, so as thereby to compensate for the lack of suitable support provided by the seat back.
By contrast, when sitting in a more upholstered seat, the cushion admittedly assumes the shape of the back. However, the more pressed-in parts of the cushion exert higher pressure on the back than the less pressed-in parts, particularly level with the lumbar region. There is, once again, the same problem that the back muscles are under stress, and the user begins to wriggle about and tries to shift his sitting plane further and further forwards by sinking further and further into the chair until the lower back is once more completely unsupported.
The cause of this restlessness is not only the unequal support which the back receives, but also a need for movement. There is therefore clearly a problem as regards the user's comfort.
Being seated for a long time and standing for a long time both represent a heavy physical load. The body needs to move in order to remain supple.
A good seat back and a good seat therefore ought to assume the shape of the sitter's back and bottom and thereby provide uniform support on all the exposed parts of the body. This characteristic should be maintained when the user moves and adopts different postures.
PRIOR ART
Comfort devices of the abovementioned type are already known. Thus, existing beds are concerned, however, with lath systems which must support a mattress or which, in more general terms, require a soft intermediate layer. Most of the existing systems, with the exception of that of Milton Luchenski (United States of America) and of J. M. Reau (France), comprise laths resting on supports which move to-and-fro in a guide element. The laths all pivot on the supports. The movement of the supports is only one-dimensional.
Moreover, in all these known systems, the laths are in mutually independent movement. In order to follow the undulatory movement of the body, which has as it were a series of bumps and hollows, the laths pivot in a particular direction, either under the pressure of the mattress or by means of an elastic material to which they are connected. The result of this is a lack of flexibility for existing furniture.
There are also spring-suspension systems which, however, have the serious disadvantage of high exposure to wear. Moreover, in the case of interdependent springs acting directly on one another, a malfunction of one of them may bring about a malfunction of the entire system.
SUMMARY OF THE INVENTION
The object of the present invention is to overcome the abovementioned problems. To this purpose there is proposed a device as defined in claim 1. Thus, by means of the comfort device according to the invention, the support flat of the device assumes the shape of the body when it comes into contact with the latter, and, more specifically, when the user takes up position on or against the abovementioned support flat. The support flat continuously follows the movement of the body, and excellent distribution of the pressure on the body is obtained. Furthermore, the movement of the intermediate suspension parts must be considered as being in two modes, in tha
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patent: 4192547 (1980-03-01), Geir
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Cuomo Peter M.
White Rodney B.
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