Elastic element of support of a part of the body

[0001] This invention relates to an elastic element of support of a part of the body.

[0002] As it is well known to designers, the ergonomics of a chair in the interior design field or a baby carriage in the sanitary field or other similar apparatus is greater when the apparatus is capable of adapting itself to the shape of the body of the user.

[0003] By way of example, in a chair of interior design, such as office type chairs, the value of ergonomics depends, among others, on the possibility of the chair back adapting itself to the entire back of the user, i.e. from the shoulders to the lumbar area of the individual who is sitting on the chair.

[0004] Analogously, in a chair for sanitary use it is required that ergonomics be total so that in addition to the back also the armrests, the footrests and the other parts of the apparatus intended to support the body of the patient must be orientable.

[0005] An object of the present invention is to provide a flexible elastic element which when applied singularly or in a plurality of pieces on the frame of a chair or other similar apparatus makes totally flexible in every direction the parts which come in contact with the body of the user.

[0006] A further object of the invention is to provide a flexible elastic element which is applicable on the frame of chairs and similar apparatus of normal production.

[0007] These objects are achieved by providing a suitably shaped elastic element which allows the respective area to which it is connected to move in an anthropomorphic manner.

[0008] Constructively, this elastic element comprises a monoblock of plastic material which comprises a sleeve which becomes inserted on the frame of the chair or other similar apparatus and a bellows on which is anchored the area of the apparatus which must be endowed of an anthropomorphic motion.

[0009] The blocking of the elastic element on the supporting frame is achieved by taking advantage of the adherence of the sleeve when the latter is inserted on the frame.

[0010] The characteristics of the invention will be better evidenced by the description of a possible form of achievement and a possible utilization provided as a non-limiting illustration by reference to the accompanying drawings of which:

[0011] FIGS. 1, 2 and 3 show the three orthogonal views of the elastic element of the invention;

[0012] FIGS. 4, 5 and 6 show in the three orthogonal views a first manner of connection of the elastic element of the invention to the area to be made flexible;

[0013] FIGS. 7, 8 and 9 show in the three orthogonal views a second manner of connection of the elastic element of the invention to the area to be made flexible;

[0014] FIGS. 10, 10A and 10B show respectively a total view and two detailed views of a chair provided with a plurality of elastic elements of the invention.

[0015] As shown in FIGS. 1, 2 and 3, the elastic element of the invention is constituted by monoblock (1) which comprises a hollow coupling (2) and bellows (3). On the front part of the bellows a plurality of blocks (4) protrudes. A pair of counterposed flanges (6) and (7) becomes hooked on the blocks (4) by means of movable coupling with fixed joint.

[0016] As shown in FIGS. 4, 5, 6 and 7, 8 and 9 the elastic element becomes inserted with adherence by means of sleeve (2) on the frame (8) and is anchored to the area (9) by means of screws (10) which are placed on flanges (6) and (7). These flanges when they are mounted on the element constitute plate (11) which provides support for the area (9).

[0017] As shown in FIG. 4, the threaded connection has a thread formed on plate (11) or vice versa on area (9) as shown in FIG. 9 in function of the width of the plate (9).

[0018] Finally as shown in FIGS. 10, 10A, 10B the elastic element may advantageously be mounted on a chair in order to make flexible the portions (12) which constitute the back, the portion (13) on which one sits the armrest (14) and the footrests (15).

[0019] On the basis of the description and figures, the advantages resulting from the use of the elastic element of the invention are evident because for instance in a chair it allows the back and the armrests to deform in every direction whereby the user who is sitting on the chair has maximum comfort.