EP2841043A2

EP2841043A2 - Ergonomic support adjustable in height, for supporting persons and adapting it to the different shapes of the persons back and providing for supporting the same persons with a massaging effect

Info

Publication number: EP2841043A2
Application number: EP13729410.4A
Authority: EP
Inventors: Alessio Collodel
Original assignee: CM SOGNI Sas DI COLLODEL A & C
Current assignee: CM SOGNI Sas DI COLLODEL A & C
Priority date: 2012-04-27
Filing date: 2013-04-25
Publication date: 2015-03-04
Also published as: ITPN20120022A1; WO2013160758A2; WO2013160758A3

Abstract

Ergonomic support adjustable in height, for supporting persons and adapting it to the different shapes of the persons back and providing also for a massaging effect. Support comprising a plurality of separated lengthened staves (9), which are curved convex, constituted by a first pair of stationary staves (14; 81), arranged on the central zone of the net (5) or a chaise-longue, and by a set of pairs of movable staves (15, 16; 17, 18; 35, 36; 41, 42; 82, 83, 84, 85) situated in correspondence of the lumbar zone and the glutaeus of the persons, and actuatable singly or contemporaneously by a first respective movable leverage (22; 50; 78) and by a second respective movable leverage (30; 51; 79), from a lowered rest position thereof, in which all the staves (9) are horizontally aligned to each other, to a raised working position thereof, in which the staves (9) of the set of movable staves are raised at different heights, for supporting the persons back which, if are affected by lumbar pathologies, scoliosis, etc..., take remarkable benefits and are subjected also to massaging effects for durations pre-established by the same persons.

Description

"ERGONOMIC SUPPORT ADJUSTABLE IN HEIGHT, FOR SUPPORTING PERSONS AND ADAPTING IT TO THE DIFFERENT SHAPES OF THE PERSONS BACK AND PROVIDING FOR SUPPORTING THE SAME PERSONS WITH A MASSAGING EFFECT"

The inventions relates to an ergonomic support adjustable in height, such as for example a supporting net and a chaise-longue (long seat), for adapting it to the different shapes of the persons back and supporting the same and providing also for a massaging effect.

Ergonomic supports of various kind as supporting net and chaises-longue are known, both provided for single uses and constituted by a support structure to be applied on the floor by lower support legs, while the nets may also be applied into the correspondent support structure of beds and settees, and these supports are provided with a plurality of separated lengthened staves, made by an adequate wood, with strong elastic characteristics, as for example the beech, which staves are arranged in the transverse direction with respect to the relative support structure and inserted with their end portions into correspondent supports made in elastic material such as for example rubber, which are applied on to said support structure. In particular, while the chaises-longue have a fixed support structure not-adjustable in height, the support nets are normally realized with a central net portion having a horizontal rectilinear shape, hinged to a rectilinear portion acting as headboard and to a rectilinear portion acting as footboard, of which the central rectilinear portion is fixed and cannot be lifted or lowered, while the headboard and footboard portions are associated with a relative mechanism allowing them to be moved from a lowered position to a lifted position thereof within determined limits, in such a way that when both headboard and footboard portions are lowered, they are aligned with the central net portion, so as to form a horizontal laying surface, and when either one or both headboard and footboard portions are lifted they allow the lifting respectively of the bust and the head of the persons and/or the legs and the glutaeus of the same persons.

These support nets operates in a satisfactory manner and lend themselves to support persons whose back has the spinal column with a normal curvature, and therefore aren't affected by lumbar pathologies and/or by lordosis, but they may be used also by persons with pathologies of this kind with light entity, which when are lying down onto the nets may arrange some pillows or supports on to the upper surface of the nets, and below the areas affected by such pathologies, which pillows or supports are shaped for adapting them to the back curvature.

Of course, this condition doesn't represent an optimal and efficient solution for supporting persons with these particular pathologies, and doesn't allow moreover to carry out a function of massage and stimulation of the back's areas affected or non-affected by these pathologies, as it would be on the contrary desirable for getting better the tissues tone of the back and to facilitate the relaxing and the de-contraction of the muscles of the same.

The object of the present invention is to provide for an ergonomic support adjustable in height, in its central area, so as to adapt the profile of this support to the different shapes of the persons back, in order to support in an efficient way the persons affected by the above-mentioned pathologies, and also the persons who aren't affected by such pathologies, and to produce also a massaging effect on the back of the same persons.

This ergonomic support is made with the substantially described constructive characteristics, with particular reference to the attached patent claims.

The invention will be better understood from the following description, given by way of a not- limiting example only, and with reference to the accompanying drawings in which:

- Fig. 1 shows a perspective front and exploded view of a type of ergonomic support according to the invention, as a support net, displaced in the lowered rest position thereof, and in a first embodiment thereof, in which all the upper surface of the net has an horizontal rectilinear shape, and in which the structural configuration of the net and its various component parts appear evident ; - Fig. 2 shows a front view of the support net of Figure 1 , displaced in the rest lowered position thereof; - Fig. 3 shows an enlarged front view of one of the lowering and lifting mechanisms of the movable central portions of which the net of Figure 1 is constituted, which mechanism keeps the relative movable central portion in the lowered position of Figure 2 ;

- Fig. 4 shows a front view of the support net of Figure 1, the movable central portion of which is displaced in the lifted position thereof ;

- Fig. 5 shows an enlarged front view of the mechanism of Figure 3, displaced for lifting the same net movable central portion ;

- Fig. 6 shows a front view of the support net of Figure 1 , displaced in a position in that only a second central portion of the same net is lifted ;

- Fig. 7 shows a front view of the support net of the Figure 1 , displaced in a position in that both the net movable central portions are lifted ;

- Fig. 8 shows a perspective front and exploded view of a support net according to the invention, displaced in the rest position, and in a second embodiment thereof, in that all the net upper surface has an horizontal rectilinear shape, and in which the structural configuration of the same net and its various component parts appear evident ;

- Fig. 9 shows a front view of the support net of Figure 8, displaced in the same rest position ;

- Fig. 10 shows an enlarged front view of one of the lowering and lifting mechanisms of some portions of which the support net of Figure 8 is constituted, which mechanism keeps the net movable central portions in the lifted position thereof ;

- Fig. 1 1 shows a front view of the support net of Figure 8, with its movable central portions displaced in the lifted position thereof ;

- Fig. 12 shows a front view of the support net of Figure 8, in which an additional net movable portion and the associated footboard portion is partially lifted ;

- Fig. 13 shows an enlarged front view of the other lowering and lifting mechanism of the additional net movable portion and the footboard of the Figure 12, displaced in the position of partial lifting of such additional movable portion and footboard ;

- Fig.14 shows a front view of the support net of Figure 8, the movable portions and the headboard and footboard of which are all lifted ;

- Fig. 15 shows a front view of another type of ergonomic support according to the invention, as a chaise-longue, provided with a lifting and lowering mechanism for the persons back, applied to the central area of the same support ;

- Fig. 16a shows a front view of a support net according to the invention, displaced in the rest position, and a third embodiment thereof, in which all the net upper surface has an horizontal rectilinear shape ;

- Fig. 16b shows a front view of the support net of Figure 16a, the movable portions and the headboard and footboard of which are all lifted ;

- Fig. 17a shows a front view of a support net according to the invention, displaced in the rest position, and in a fourth embodiment thereof, in which all the net upper surface has an horizontal rectilinear shape ;

- Fig. 17b shows a front view of the support net of Figure 17a, the movable portions and the footboard thereof are all lifted, the first ones only partially and the second one completely ;

- Fig. 17c shows a front view of the support net of Figure 17a, the movable portions and the headboard and footboard of which are all completely lifted ;

-Fig. 18a shows an enlarged view of a first mechanism of the Figure 17a, which mechanism keeps the relative movable central portion in the lowered position of the Figure 17a ;

-Fig. 18b shows an enlarged view of the mechanism of the Figure 18a, displaced for lifting only partially the same net movable central portions, like in Figure 17b ;

-Fig. 18c shows an enlarged view of the mechanism of the Figure 18a, displaced for lifting completely the same net movable central portions, like in Figure 17c ;

- Fig. 19a shows an enlarged view of a second mechanism of the Figure 17a, displaced for keeping the relative footboard in the lowered position of the Figure 17b ;

- Fig. 19b shows an enlarged view of the mechanism of the Figure 19a, displaced for lifting the same footboard in the reverse position of Figure 17b ;

- Fig. 20a shows an enlarged view of a second embodiment of a mechanism of Figure 17a, displaced for keeping the relative footboard in the lowered position thereof ;

- Fig. 20b shows an enlarged view of the mechanism of Figure 20a, displaced for lifting the same footboard in the reverse position of Figure 17b ;

- Fig. 21a shows an enlarged view of a third embodiment of a mechanism of Figure 17a, displaced for keeping the relative footboard in the lowered position thereof ;

- Fig. 21b shows an enlarged view of the mechanism of Figure 20a, displaced for lifting the same footboard in the reverse position of Figure 17b ;

- Fig. 22a shows a front view of the support net according to the invention, displaced in the rest position, and in a fifth embodiment thereof, in which all the net upper surface has an horizontal rectilinear shape ;

- Fig. 22b shows a cut front view of the support net of Figure 21a, in which a first embodiment of the lifting mechanisms of the footboard and the headboard are shown, displaced in the lowered rest position thereof ;

- Fig. 22c shows a cut front view of the support net of Figure 21b, the headboard and footboard of which are all lifted by the relative mechanisms of the Figure 22b ;

- Fig. 23 a shows an enlarged view of a second embodiment of the mechanism for lifting the footboard of the Figure 21b, which is lowered in the rest position thereof ;

- Fig. 23b shows an enlarged view of the mechanism of Figure 22a, in which the footboard is lifted in the reverse position of Figure 17b ;

- Fig. 24a shows an enlarged view of a third embodiment of the mechanism for lifting the footboard of Figure 21 b, which is lowered in the rest position thereof ; - Fig. 24b shows an enlarged view of the mechanism of Figure 23a, in which the footboard is lifted in the reverse position of Figure 17b ;

- Fig. 25a shows an enlarged view of a fourth embodiment of the mechanism for lifting the footboard of Figure 21b, which is lowered in the rest position thereof ;

- Fig. 25b shows an enlarged view of the mechanism of Figure 24a, in which the footboard is lifted in the reverse position of Figure 17b ;

- Fig. 26 shows a front view of a support net with two alternative actuating mechanisms identical to the mechanisms of Figures 21a and 21b ;

- Fig. 27 shows a front view of a support net with a different alternative actuating mechanism, controlled by a unique gearmotor unit ;

- Figures 28 a, b, c, d show a front view of a set of movable staves actuated by an additional actuating mechanism, with a continuous rotary system.

In the above Figures, an ergonomic support adjustable in height for supporting persons as for example a support net and a chaise-longue is schematically represented, which can be adapted to the different shapes of the persons back for supporting the same and providing also for a massaging effect. In particular, such ergonomic support is illustrated in the Figures 1-14 in the shape of a support net 5 for singles uses or for beds and settees, whereas in the Figure 15 it is realized in the shape of a chaise-longue.

The Figures 1 and 2 show a first embodiment of the present support net 5, displaced in the rest position in which all the net upper surface has an horizontal rectilinear shape, which net is substantially constituted by a support structure 6 formed by a peripheral frame 7 of rectangular shape which, in the use as single net, i£ provided with lower legs 8 for being laid on the floor, and in the combination with beds or settees (not shown in the Figures), is applicable removable in the correspondent support structure of such beds and settees (not shown), in such a way as to be laid onto this latter support structure, and this net is furthermore constituted by a plurality of spaced away lengthened staves 9 of the same size, which are curved convex, made by an adequate wood, with strong elastic characteristics, as for example the beech, on to which the persons supporting mattress is laid, said staves being applied on to the peripheral frame 7 by a plurality of support elements 10 made of rubber or other elastic material, joined with the end portions of the staves 9 and so shaped as to be fixed to and supported by short pivots 11, passing through correspondent openings of the longitudinal side edges 12 and 13 of the peripheral frame 7 and spaced away to each other for the length of such longitudinal side edges. In particular, as visible, such staves 9 comprise a set of pairs of staves assembled and joined to each other, which pairs are spaced away to each other for all the length of the peripheral frame 7 and are formed by a first pair of stationary staves 14, arranged in the central area of the net 5 and constituting an horizontal rectilinear upper surface, and moreover by a set of movable staves, arranged along the net 5 from the one and the other side of the first pair of stationary staves 14, and this set is constituted in the present example by a second and a third pair of movable staves 15 and 16, arranged approached to each other and situated in correspondence of the lumbar area of the persons, and by a fourth and a fifth pair of movable staves 17 and 18 arranged approached to each other and situated in correspondence of the glutaeus of the persons. The support elements 10 of the pairs of movable staves 15 and 16 are fixed to and supported by the pivots 1 1 secured to a lengthened flat plate 19, housed into two box-like guide members 20 and 21 identical to each other and adequately fixed internally the relative longitudinal side edge 12 and 13 of the net 5, and such flat plate 19 is sliding in height into such box-like guide members 20 and 21 and is actuated from a lowered position to a lifted position thereof, by a first respective movable leverage 22, projected in the lower side of the net and shaped and supported by the opposed longitudinal side edge as it will be described, wherein both the movable leverages 22 are communicating to each other through a transversal shaft 23 passing though a gearmotor unit 24 of per se known type, and actuatable by the component members of such gearmotor unit, which in turn is housed into a lengthened container 25, supported by the frame 7 in the lower and central part thereof and extended in the longitudinal direction of the net 5, which gearmotor unit is connected to the electric supply line through a suitable control keyboard (not shown), provided with control push-buttons for moving the flat plate 19 from a lowered adjusted position thereof, visible in the Figures 1 and 2, to a lifted position thereof visible in the Figure 6, and vice versa. Each movable leverage 22 is shaped with a first and second short lever 26 and 27 articulated to each other with their adjacent end portions, and the other end portions of which are articulated the one with a support bracket 28, secured below the relative longitudinal side edge 12 and 13 of the frame 7, and into which the transversal shaft 23 is rotatable housed, and the other one with a relative lengthened flat plate 19. In this way, when the levers 26 and 27 of both the movable leverages 22 are displaced in the lowered position by the rotation of the shaft 23, also the flat plate 19 is lowered, by sliding into the box-like guide members 20, 21, with consequent lowering up to the rest position of both the pairs of movable staves 15 and 16, so that these latter arrange themselves in the horizontal position, in which they are aligned with the remaining net staves 9.

On the contrary, when such levers 26 and 27 are displaced in the raised position by the rotation of the shaft 23, the flat plate 19 too is raised, with consequent raising up to the desired position of both the pairs of movable staves 15 and 16, so that these latter are projected upward and raised with respect to the remaining net staves 9.

Under this raised condition, the raising height of which may be adjusted by displacing the levers 26 and 27 in different positions comprised between that completely lowered and that completely raised, the lumbar area of the back of the person laying onto the net arranges itself onto the staves of both the pairs of movable staves 15 and 16, thereby allowing to support and to maintain the back in this condition for the entire desired duration, and this situation appears extremely advantageous and favourable for persons affected by dorsal pathologies as lumbagos, scoliosis and lordosis. In turn, the pairs of movable staves 17 and 18 are also supported at their end portions by a flat plate 29, arranged on and assembled internally the relative longitudinal side edge 12 and 13 of the net 5 as the previous flat plate 19, and actuatable in height by a respective second movable leverage 30, projected downward from the net and shaped in an identical and symmetrical manner with respect to the preceding movable leverage 22, as well as supported by the relative longitudinal side edge 12 and 13, wherein both the movable leverages 30 are communicating to each other by a further transversal shaft 31, which is parallel to and spaced away from the preceding shaft 23 and is passing through said gearmotor unit 24 and also actuatable like the shaft 23 in the same lowered and raised positions thereof. Also in this case, each movable leverage 30 is shaped with a first and a second lever 32 and 33 identical and symmetrical with respect to the preceding levers 26 and 27 and which are articulated to each other in the same manner of these levers, and to a supporting bracket 34, fixed below the relative longitudinal side edge 12 and 13 of the frame 7, and into which the transversal shaft 31 is rotatable housed, as well as are articulated to the flat plate 29. Also in this case, the levers 32 and 33 may be displaced in the same positions as described above, in which in the raised position of the pairs of movable staves 17 and 18 these latter support the glutaeus of the person, at the desired height and for the entire desired duration.

Such leverages 22 and 30 may be actuated singularly or contemporaneously also in a continuous manner, by acting on to correspondent keyboard control push buttons, so as to determine a slow and continuous lifting and lowering of either one or both the pairs of movable staves 15, 16, 17, 18, thereby obtaining an invigorating, relaxing and de-contracting massaging effect for the back of the persons, and the duration of such massaging treatment may be selected at will by the person or established automatically by a suitable timer included into the gearmotor unit 24.

Finally, the present support net 5 is also constituted by a plurality of further stationary staves 9, fixed to the support structure 6 as the preceding staves, from the one and the other side of the cited movable staves, and constituting respectively the headboard and the footboard of the net, and forming two horizontal rectilinear surfaces.

The Figures 4 and 5 show the pairs of movable staves 17 and 18 displaced in the raised position thereof, whereas the Figure 6 shows the pairs of movable staves 15 and 16 displaced in the raised position thereof, and the Figure 7 shows all the pairs of movable staves 15-18 displaced in the raised position thereof.

The Figures 8-14 show now a second embodiment of the present support net 5, which is

substantially constituted as the previously described net, so that the same component parts are marked with the same reference numerals. However, in this case the lowering and raising leverages of the net 5 are shaped in a different manner and perform supplementary functions than the preceding leverages, and such leverages will be hereinafter described.

Also in this case, the Figures 8 and 9 show the net 5 displaced in the rest position in which all the net upper surface has a horizontal rectilinear shape, which net is substantially formed still by a first pair of stationary staves 14, arranged in the central area of the net 5 and constituting an horizontal rectilinear upper surface, and furthermore by a set of movable staves, arranged approached to each other along the net 5 from the one and the other side of the first pair of stationary staves 14, and in the present example this set is constituted by a second and a third pair of movable staves 35 and 36, situated in correspondence of the persons lumbar area, and by a fourth and a fifth pair of movable staves 37 and 38 situated in correspondence of the upper area of the persons back, as well as by a sixth and a seventh pair of movable staves 39 and 40 situated in correspondence of the net headboard. The net 5 is further constituted by an eighth and a ninth pair of movable staves 41 and 42 arranged approached to each other and situated in correspondence of the persons glutaeus, and by an additional set of pair of movable staves 43, in the example formed by four pairs of movable staves, situated in correspondence of the net footboard. All the pairs of staves, stationary and movable ones, are supported by correspondent stationary and movable frames supported by the net peripheral frame 7 as it will be described, and in particular the staves 9 of the first pair of stationary staves 14 are secured to their end portions, always through the support elements 10, to a

correspondent frame 44 secured to the relative longitudinal side edge 12 and 13 of the net, whereas the staves of the pairs of movable staves 35 and 36, 37 and 38, and 39, 40 are secured with their end portions to correspondent movable frames 45, 46 and 47, applied internally to the relative net longitudinal side edges 12 and 13, in a position approached to the same side edges, and the pair of movable staves 41, 42 and the additional movable staves 43 are secured with their end portions to correspondent movable frames 48 and 49 applied internally to the relative net longitudinal side edges 12 and 13, in a position approached to the same side edges, and all these movable staves are supported by the leverages as follow: the pairs of movable staves 35 and 36, 37 and 38, and 39, 40 are supported by a first movable leverage 50 shaped and fixed to the correspondent longitudinal side edges 12 and 13 as it will be described, whereas the pairs of movable staves 41, 42 and the additional movable staves 43 are supported by a second movable leverage 51 shaped and fixed to the correspondent longitudinal side edges 12 and 13 as it will be described, wherein both the movable leverages 50 are communicating to each other by means of a transversal shaft 52 passing through the gearmotor unit 24, and actuatable in rotation by the component members of the same gearmotor unit, and wherein both the movable leverages 51 are communicating to each other by means of a further transversal shaft 53 passing through said gearmotor unit 24 and also actuatable in rotation, so as to displace so each leverage from a lowered position to a raised position thereof, and vice versa.

Each movable leverage 50 is shaped with a first and a second short lever 54 and 55 and a third lever 56, which is longer than the levers 54 and 55 and articulated with these latter at their adjacent end portions, whereas the other end portion of the first lever 54 is articulated with a relative bracket 57, fixed below the correspondent longitudinal side edge 12 and 13 in correspondence of the end portion of the movable frame 45 which is approached to the pair of stationary staves 14, and the other end portion of the second lever 55 is articulated with a bracket 58 fixed below such movable frame 45 at the end portion opposed to the preceding one, and finally the other end portion of the third lever 56 is provided with a through slot 59 articulated by means of a stud 60 with a further fork-shaped bracket 61, by defining a portion 62 pivoted on to a bracket 63 fixed below the movable frame 46, at the end portion of this latter which is approached to the remaining headboard frame 47, and a lengthened and slightly curved portion 64, fixed below the movable frame 47 at the end portion of this latter which is approached to the preceding movable frame 46, and the end portions adjacent to each other of said movable frames 45 and 46 are joined to each other by means of an articulation 65. In turn, each movable leverage 51 is shaped with a single short lever 66, articulated at its one end portion with a bracket 67 fixed below the relative side edge 12 and 13, and at the other end portion with a further bracket 68 fixed below the movable frame 49, and the end portions adjacent to each other of said movable frames 48 and 49 are joined to each other by means of an articulation 69.

In this manner, when both the movable leverages 50 are displaced in the lowered position thereof by the rotation of the shaft 52, all the levers 54, 55 and 56 of such leverages are displaced in the lowered position thereof, under the condition in which the stud 60 of the bracket 61 slides along the through slot 59 of the lever 56 up to its terminal position, with consequent lowering up to the rest position of all the pairs of movable staves 35, 36 and 37, 38 and 39, 40, so that all these pairs of staves arrange themselves in the horizontal position in which they are aligned with the remaining net staves 9. On the contrary, when both the movable leverages 50 are displaced in the raised position by the rotation of the shaft 52, the first lever 54 rotates around the stud of the bracket 57 and may be displaced into different raised positions thereof, thereby determining the lifting of the pairs of movable staves at different heights.

In particular, when the first lever 54 is rotated in such a way as to raise the pairs of movable staves in a first position thereof, visible in the Figures 10 and 1 1, the lever 55 raises itself slightly, by providing at one hand for a correspondent slight raising of both the pairs of movable staves 35 and 36 and the pair of movable staves 37 and 38, which are constrained to the preceding ones with the joint 65, and at the other hand by displacing forward the lever 56, thanks to the sliding of the stud 60 along the through slot 59 until the terminal position opposed to the previous one. When the lever 54 is rotated additionally in the same direction, up to raise the levers 55 and 56 in the highest raised position thereof of the Figure 14, it is determined the raising of the pairs of movable staves 35, 36 and 37, 38 and 39, 40, thanks to the joint 65 too, under the condition in which the stud 60 again slides along the through slot 59 until the previous terminal position. The sliding stroke of the stud 60 along the through slot 59 may be regulated in advance at will, by means of a regulating mechanism which in the illustrated example is constituted by a threaded bolt 70, the stem of which may be screwed or unscrewed in a relative inner thread (not indicated) of a bush 71, secured to the lengthened lever 56 in the terminal position of the through slot 59, in such a way that such stem interferes with the stud 60 and, depending on the position in which the threaded bolt 70 is screwed or unscrewed in the bush 71, it may limit in a different extent the sliding stroke of the stud 60 in the same through slot, thereby changing in a different extent also the raising height of the pairs of movable staves 35, 36 and 37, 38 and 39, 40. Of course, such regulating mechanism may be made also in different manners than those illustrated by way of example only, thus without departing from the protection sphere of the present invention.

With this criterion, therefore, the net may be raised up to different heights and be regulated at will, thereby adapting itself to the curvature of the persons back and ensuring a comfortable support to the persons having or not having lumbar pathologies, scoliosis or lordosis etc...and also ensuring an effective support to the back upper part and the head of the persons.

Finally, when both the movable leverages 51 are displaced in the lowered position thereof, with consequent rotation of the shaft 53, the levers 66 of such leverages are displaced in the lowered position thereof, with consequent lowering until the rest position of all the pairs of movable staves 41, 42 and the additional movable staves 43, so that all these staves arrange themselves in the horizontal position, in which they are aligned with the remaining net staves 9.

On the contrary, when both movable leverages 51 are displaced in the raised position thereof by the rotation of the shaft 53, the lever 66 rotates around both the stud of the bracket 67 and the stud of the bracket 68, and may be displaced into different raising positions thereof, thereby providing for the raising of both the pairs of staves 41 and 42 and the additional staves 43, thanks to the joint 69 too, and in the Figure 12 it is noted that all the staves have been slightly raised, whereas in the Figure 14 it is noted that all the staves are completely raised. In this way, in this case it is possible to raise up both the glutaeus and the legs of the persons laying on to the net.

Also here it is possible to achieve advantageous continuous massaging effects, with the same criteria described in the preceding first embodiment of the present support net, with consequent relaxing and de-contraction of the persons' back.

Finally, the Figure 15 shows another type of ergonomic support as a traditional chaise-longue, provided with a raising and lowering mechanism of the persons back, applied in the central area of the same support.

As visible from this Figure, the chaise-longue is shaped with an inclined seat back 72, joined to an arched seat73 and an upper surface 74 for supporting the person, which is shaped in a manner correspondent to such seat back and seat, and the chaise-longue is furthermore supported onto the support plane by means of lower feet 75. Also in this case, there are foreseen different elastic staves identical to those above-described, which are grouped to each other and distributed along all the upper surface 74 of the chaise-longue, and all the width thereof, and of which there are illustrated only those situated in the central area of the chaise-longue.

In particular, these latter staves are grouped in such a way as to form a first pair of central stationary staves 81 and a second and a third pair of movable staves 82 and 83, situated at one side of the stationary staves 81 in correspondence of the lumbar area of the person, and a fourth and a fifth pair of movable staves 84 and 85 situated at the other side of the stationary staves 81 in correspondence of the glutaeus of the same person, and all the movable staves are supported by an underlying support structure 77, housed internally the seat back 72 and the seat 73, and in which there are supported a first and a second leverage 78 and 79 identical to the previous leverages 22 and 30 of the first embodiment of the ergonomic support, and actuatable from the one to the other one of the lowered and raised positions by means a relative gearmotor unit 80, identical to the previous unit 24 and also supported at the lower side of the support structure 77, of which the first leverage 78 is joined to the second and the third pair of movable staves 82 and 83, whereas the second leverage 79 is joined to the fourth and the fifth pair of movable staves 84 and 85.

Therefore, with this configuration, also the pairs of movable staves 82, 83, 84 and 85 may be simultaneously or singularly displaced from a lowered position (not visible), to different positions raised at different heights, and vice versa (a position is visible in the Figure 15), in the same manner and for performing the same functions as above described.

In the Figures 16a- 16b it is now shown a third embodiment of the present support net 5, which is substantially constituted as the previous described net, so that the same component parts are marked with the same reference numerals. In this case, however, the lowering and rising leverages of the net 5 are made in a different manner and perform additional functions of the precedent leverages, and such leverages will be hereinafter described.

Also in this case, in the Figure 16a it is shown the net 5 displaced in the rest position thereof in which all the net upper surface has an horizontal rectilinear shape, which net is substantially still formed by a first pair of stationary staves 14, arranged in the central area of the net 5 and constituting an horizontal rectilinear upper surface, and furthermore by a set of movable staves, arranged approached to each other and arranged along the net 5 from the one and the other side of the first pair of stationary staves 14, and this set is constituted in the present example by a second and a third pair of movable staves 86 and 87, situated in correspondence of the upper area of the persons back, and by a fourth and a fifth pair of movable staves 88 and 89 situated in

correspondence of the persons glutaeus, as well as by a first movable set 90 of four pairs of stationary staves 91 situated in correspondence of the net headboard, and finally by a second movable set 92 of four pairs of stationary staves 93 situated in correspondence of the footboard of the net 5.

All the pairs of staves, stationary and movable ones, are supported by correspondent fixed and movable frames supported by the peripheral frame 7 of the net as will be described, and in particular the staves 9 of the first pair of stationary staves 14 are fixed at their end portions, always by means of the support elements 10, to a correspondent frame (not shown) fixed to the relative longitudinal side edges 12 and 13 of the net, whereas the staves of the pairs of movable staves 86, 87 and 88, 89 are fixed respectively with their end portions to correspondent movable frames 94 and 95, and the set of pairs of movable staves 90 and 92 are fixed respectively with their end portions to correspondent movable frames 96 and 97. Such movable frames 94, 95 and 96, 97 are applied internally to the relative net longitudinal side edges 12 and 13, in a position approached to the same side edges.

The movable staves 86, 87 and 88, 89 are structured and operating identically as the respective staves 15, 16 and 17, 18 of the first embodiment of the net 5 represented in the Figures 8-9.

While the two movable frames 94 and 95 are actuated by leverages identical to those of the correspondent leverages 22 and 30 as above described, said movable frames 96 and 97 are supported by leverages as follows : the frame 96 of the headboard is supported by a first movable leverage 98 shaped and fixed to the correspondent longitudinal side edges 12 and 13 as will be described, whereas the frame 97 of the footboard is supported by a second movable leverage 99 shaped and fixed to the correspondent longitudinal side edges 12 and 13 as will be described, in which the first movable leverage 98 is formed by two movable leverages identical and

communicating to each other by means of a transversal shaft 100, passing through a second independent gearmotor unit 101, secured to the back end portion of the lengthened container 25 of the Figure 1 , and actuatable in rotation by the component members of the same gearmotor unit, and in which the second movable leverage 99 is formed by two movable leverages identical and communicating to each other by means of an additional transversal shaft 102, passing through a third independent gearmotor unit 103, secured to the forward end portion of the above-mentioned lengthened container 25, and actuatable in rotation too, so as to displace each leverage from a lowered position to a raised position thereof, and vice versa.

Each leverage 98 is shaped with a single lever 104, articulated at an end portion thereof to a bracket 105 secured below the relative longitudinal side edge 12 and 13, and into which the shaft 100 is pivoted, and provided at the other free end portion thereof with a wheel 106, laid about on the middle of the frame 96 and sliding on the lower surface of the same frame.

When both the movable leverages 98 are displaced from the rest position thereof, in which the staves 9 are all aligned horizontally (see Fig. 16a), to the raised position by the rotation of the shaft 100, as shown in the Figure 16b, the lever 104 rotates around the stud of the bracket 105 and may be displaced into different raising positions thereof, while the wheel 106 rotates by sliding on the lower surface of the frame of the headboard 96, thereby providing for raising this latter up to the desired position.

In turn, each leverage 99 is shaped with a single lever 108, articulated at an end portion thereof to a bracket 109 secured below the relative longitudinal side edge 12 and 13, and pivoted with the shaft 102, and provided at the other free end portion thereof with a wheel 1 10, laid about on the middle of the frame 97 and sliding on the lower surface of the same frame.

When both the movable leverages 99 are displaced from the rest position, in which the staves 9 are all aligned horizontally (see Fig. 16a), to the raised position by the rotation of the shaft 102, as shown in Figure 16b, the lever 108 rotates around the stud of the bracket 109 and may be displaced into different raising positions thereof, while the wheel 1 10 rotates by sliding on the lower surface of the frame 97, and thereby providing for raising this latter up to the desired position, in this case in the reverse position thereof.

In the Figures 17a- 17c it is now shown a fourth embodiment of the present support net 5, which is substantially constituted as the previous described net, so that the same component parts are marked with the same reference numerals. In this case, however, the lowering and rising leverages of the net 5 are made in a different manner and perform additional functions then the previous leverages, and such leverages will be hereinafter described.

Also in this case, in the Figure 17a it is shown the net 5 displaced in the rest position thereof in which all the net upper surface has an horizontal rectilinear shape, which net is substantially still formed by three pairs of stationary staves 14, arranged in the central area of net 5 and constituting an horizontal rectilinear upper surface, and furthermore by a set of movable staves, arranged approached to each other and displaced along the net 5 from the one and the other side of the first pair of stationary staves 14, and this set is constituted in the present example by a second and a third pair of movable staves 113 and 1 14, situated in correspondence of the upper area of the persons back, and by a first movable set 1 15 of four pairs of stationary staves 1 16 situated in

correspondence of the net headboard, as well as a second movable set 1 17 of four pairs of stationary staves 1 18 situated in correspondence of the footboard of the net 5.

Referring to the Figure 18a, in which an inner item of the net headboard of the Figures 17a- 17c is shown, it is possible to note that the support elements 10 of the pairs of movable staves 1 13 and 114 are fixed and supported by the studs 1 1 secured to a lengthened flat plate 19, housed into two boxlike shaped guide members 20 and 21 identical to each other and opportunely fixed in the interior of the relative vertical rod of the frame 118, housing also the movable set 115 of staves 1 16, and articulated with its lower end portion to the longitudinal side edge 12 and 13 of the net 5 and such flat plate 19 is slidable in height into such box-like guide members 20 and 21 and is actuatable from a lowered to a raised position thereof, by means of a first respective movable leverage 1 19, which is projected from the lower side of the net and shaped and supported by the opposite longitudinal side edge as it will be described, wherein both the movable leverages 1 19 are communicating to each other by means of a transversal shaft 120 passing through a per se known gearmotor unit 24, and actuatable by the component members of such gearmotor, which in turn is housed into a lengthened container (not shown), supported by the frame 7 in the lower and central area thereof and extended in the longitudinal direction of the net 5, which gearmotor unit is connected to the electric power supply through a suitable control keyboard (not shown), provided with control push buttons for displacing the flat plate 19 from a lowered regulating position, visible in the Figures 17a and 18a, to a raised position visible in the Figures 17b and 18b, and vice versa ; furthermore, by continuing to raise, the leverages 1 19 displace consequently also the frame 118 in a raised position, as shown in the Figures 17c and 18c, and vice versa.

Each movable leverage 119 is also shaped with a first and a second short lever 121 and 122, of which the lower end portion of the first lever 121 is articulated with a support bracket 28, secured below the relative longitudinal side edge 12 and 13 of the frame 7, and in which the transversal shaft 120 is housed in rotation, and the other free end portion of the lever 121 is provided with a wheel 124, laid on the lower surface of the frame 1 18 and slidable on to the same, whereas the second lever 122 is pivoted with its lower end portion nearly on the middle of the first lever 121, and with its other end portion is pivoted with the relative lengthened flat plate 19. In this manner, when the levers 121 and 122 of both the movable leverages 1 19 are displaced in the lowered position by the rotation of the shaft 120, also the frame 118 and the flat plate 19 are lowered, by arranging themselves in an horizontal position, in which they are aligned with the remaining staves 9 of the net.

On the contrary, when such levers 121 and 122 are displaced in the raised position by the rotation of the shaft 120, also the flat plate 19 is raised up, with the consequently rising up to the desired position of both the pairs of movable staves 1 13 and 114, so that these latter are projected upward and raised with respect to the remaining staves 9 of the net, as visible in Figures 17b and 18b and then, by continuing to raise the two levers 121 and 122, the end portion of the lever 121 provided with the wheel 124 slides with this latter on to the frame 118, by raising thereof, as visible in Figures 17c and 18c, thereby supporting the back of the same person on the net.

By referring to the Figures 19a- 19b, in which an item of the footboard is shown, it can be noted that the support elements 10 of the set of movable pairs 1 17 are fixed on and supported by studs 1 1 fixed equally spaced from each other on the inner side of a frame 127 articulated with the front end portion of the frame 7.

Said frame 127 is supported by a movable leverage 128 formed by two movable leverages identical to each other, which are shaped and secured to the correspondent longitudinal side edges 12 and 13 as it will be described, wherein both the movable leverage 128 are communicating to each other by means of the transversal shaft 53, passing through the gearmotor unit 24, and therefore actuatable by this latter, so as to displace each leverage 128 from a lowered to a raised position thereof, and vice versa.

Each leverage 128 is shaped with a single lever 129, articulated at its one end portion to a bracket 130 secured below the relative longitudinal side edge 12 and 13, and pivoted with the shaft 53, and provided at its other free end portion with a wheel 131, laid nearly on the middle of the frame 127 and slidable on to the lower surface thereof.

When both the movable leverages 128 are displaced from the rest position thereof, in which the staves 9 are all horizontal aligned (see Fig. 19a), to the raised position by the rotation of the shaft 53, as shown in the Figure 19b, the lever 128 rotates around the stud of the bracket 130 and may be displaced into different raised positions, while the wheel 131 rotates by sliding on to the lower surface of the frame 127 and thereby provides for raising it up to the desired height, in the reverse raising position.

Such leverages 128, as it can be noted by the Figures 20a-20b in a second embodiment, may be also shaped with a first and a second short lever 132 and 133, of the same length, articulated with their approached end portions, whereas the other end portion of the first lever 132 is articulated with a relative bracket 134, secured below the correspondent longitudinal side edge 12 and 13, in correspondence of the end portion of the pairs of movable staves 117, in a position approached to the pair of stationary staves 14, and the other end portion of the second lever 133 is articulated with a bracket 135 secured below the movable frame 127.

In this second embodiment, when both the movable leverages 128 are displaced from the rest position thereof, in which the staves 9 are all horizontally aligned (see Fig. 20a), to the raised position by the rotation of the shaft 53, as shown in the Figure 20b, the first lever 132 rotates around the stud of the bracket 134 and may be displaced into different raised positions, while the lever 133 is also displaced in the raised position, so as to raise the frame 127.

Such leverages 128, as it can be noted in the Figures 21a-21b in a third embodiment thereof, may be further shaped with a gear 136 with horizontal axis, fixed to the shaft 53, below the

correspondent longitudinal side edge 12 and 13, in correspondence of the end portion of the pairs of movable staves 117 which are approached to the pair of stationary staves 14, and engaged in turn with a vertical rack 137, slidably fixed to a guide member 138 secured on the inner side of the longitudinal edge sides 12 and 13, and the upper end 139 of which is articulated with the underlying part of the frame 127, near the pair of staves 14.

In this third embodiment, when both the movable leverages 128 are displaced from the rest position thereof, in which the staves 9 are all horizontally aligned (see Fig. 21a), to the raised position by the rotation of the shaft 53, as shown in the Figure 21b, the gear 136 rotates by raising the vertical rack 137, which therefore can be displaced into different raised positions, thereby raising the frame 127, in the reverse raised position of the footboard.

In the Figures 22a-22c it is now shown a fifth embodiment of the present support net 5, which is substantially constituted as the previously described net, so that the same component parts are marked with the same reference numerals. In this case, however, the lowering and rising leverages of the net 5 are made in a different manner and perform additional functions with respect to the preceding leverages, and such leverages will be hereinafter described. Also in this case, in the Figure 22a it is shown the net 5 displaced in the rest position thereof, in which all the net upper surface has an horizontal rectilinear shape, while in the Figure 22b it is shown a cutaway view of the net of the Figure 22a. Such net is substantially formed by three pairs of stationary staves 140, arranged in the central area of the net 5 and constituting an horizontal rectilinear upper surface, and furthermore by a first movable set 141 of six pairs of stationary staves

142 situated in correspondence of the net headboard, and finally by a second set of movable staves

143 of four pairs of stationary staves 144 situated in correspondence of the footboard of the net 5. Said first movable set 141 is assembled with per se known fixing elements 10 to a frame 145, which is articulated at its lower end portion to the inner part of the longitudinal side edges 12 and al3, in correspondence of the pairs of stationary staves 140, and supported by a movable leverage 146 formed by two movable leverages identical to each other and shaped and fixed to the correspondent longitudinal side edges 12 and 13 as it will be described, wherein both the movable leverages 146 are actuatable manually by the user and are shaped, as shown in the Figures 22b and 22c, with a telescopic guide element 147, having pre-established locking positions in order to be able to stop the frame 145 in the desired position, and are articulated at their lower end portion 148 in the back area of the side edges 12 and 13, and at their upper end portion 149 nearly to the middle of said frame 145, so as to be able to displace it from a rest position in which all staves 9 are horizontally aligned, to a raised position desired by the user for supporting his back.

In turn, the second movable set 143 is assembled with per se known fixing element 10 to a frame 150, which is articulated at its lower end portion to the inner part of the longitudinal side edges 12 and 13, in correspondence of the front part of these latter, and is supported by a movable leverage 151 formed by two movable leverages identical to each other and shaped and fixed to the correspondent longitudinal side edges 12 and 13 as it will be described, wherein both the movable leverages 151 are actuatable manually by the user.

As shown in the Figures 22b and 22c, such movable leverages 151 are shaped, in a first embodiment thereof, with a telescopic guide element 152 having pre-established locking positions, so to be able to stop the frame 150 in the desired position, and are articulated at their lower end portion 153 to the front area of the side edges 12 and 13, and at their upper end portion 154 nearly to the middle of said frame 150, so as to be able to displace it from a rest position in which all the staves 9 are horizontally aligned, to a raised position desired by the user for supporting and stretching his legs, by making to him a static massage, in the raised reverse position of the footboard.

Such leverages 151, as it can be noted from the Figures 23a-23b in a second embodiment thereof, may be also shaped with a first and a second short lever 155 and 156, with the same length and articulated with one of their end portions, and joined to an additional lever 157, which is sliding on to the first one and articulated on to the second one, and more particularly said first lever 155 is secured horizontally to the inner part of the longitudinal side edges 12 and 13, in correspondence of the end portion of the pairs of movable staves 143 which are approached to the pair of stationary staves 140, while the second lever 156 is articulated to the first lever 1 5 near the pair of staves 140, and is articulated at its middle with the upper end portion of the lever 157, whereas the lower end portion of this latter slides into a guide member (not shown) provided into the first lever 155. Furthermore, in correspondence of such leverages 151, in the underlying part of the frame 150 a housing 157' is obtained, which in the footboard rest position arranges itself onto the levers 155, 156 and 157 folded to each other, in such a way that the staves 9 are all horizontally aligned.

When the lever 156 is raised manually by the user, the lever 157 slides into the guide member of the lever 155 and tends to position itself vertically, and the free end portion of such lever 156 in turn raises the frame 150, which with its weight pushes the lever 157 downward, thereby preventing the leverage 151 to close itself in the rest position thereof. Vice versa, for coming back into the rest position the user raises the frame 150, by moving it away from the leverage 151, so as to be able to move this latter with extreme simplicity. Such leverages 151, as it can be noted from the Figures 24a-24b in a third embodiment thereof, may be additionally shaped with a first and a second short lever 158 and 159, with the same length and articulated with their approached end portions, of which the other free end portion of the lever 158 is articulated with a bracket 160 secured below the frame supporting the pairs of staves 140, and the other free end portion of the lever 159 is articulated with a bracket 161 secured with the end portion of the frame 150. Furthermore, said two levers 158 and 159 are joined to each other by and additional lever 162, slidable with the lower end portion into a guide member (not shown) of a per se known locking system, provided in the first lever, and which is articulated with the upper end portion of the second lever, nearly in its middle.

When the frame 150 is raised manually by the user, the lever 162 slides into the guide member of the lever 158 and tends to position itself vertically, while the two levers 158 and 159 open themselves as scissors from their horizontal position and, through the locking system of the guide member of the first lever 158, position the frame 150 in the desired position, for then unlocking and bringing back it in the lowered position thereof, in which all the staves 9 are horizontally aligned, and under this condition the footboard is displaced in the reverse raising position.

Such leverages 151, as it can be noted from the Figures 25a-25b in a fourth embodiment thereof, may be additionally shaped with a single short lever 163, the lower end portion of which is articulated to the underlying part of the longitudinal side edges 12 and 13, in correspondence nearly to the middle of the frame 150, which in turn is provided with a set of pins 164 arranged in correspondence of the same lever 163.

When the frame 150 is raised manually by the user from the rest position thereof, in which all the staves 9 are all horizontally aligned, the lever 163 is raised contemporaneously, and engages with its shaped upper end portion 165 the one of said pins 164, by positioning the frame 150 in one of the desired positions, from which it can be then disengaged and brought back in the rest position thereof. Also in this case, the footboard is displaced in the reverse raised position. In the Figure 26 it is shown a support net 5 provided with two leverages 128, each one shaped with a gear 136 and a vertical rack 137, which are identical to those described in the Figures 21a-21b, and spaced away to each other along the net, the first leverage at the left side of which is associated in the present example with two pairs of movable staves 166 and 167, and the second leverage at the right side of which is associated in the present example with the net headboard. Both the leverages 128 may be actuated singularly or collectively, for determining an alternate movement of raising and lowering respectively of the pairs of movable staves 166 and 167 and the headboard, with preset cadences, and thereby for massaging the persons laid down on the same net.

These leverage may be associated also to other movable parts of the net, which may be raised and lowered, as already previously described, and may be also provided in numbers greater then those indicated by way of example only, thus without departing from the protection sphere of the present invention.

In the Figure 27 it is shown a support net 5 provided with an additional type of leverage 168, constituted by a lengthened lever 169, supported and actuated by the gearmotor unit 170 housed in the container 25, wherein in the present example the end portions of such lever are pivoted the one with two pairs of movable staves 166 and 167, and the other one with the net headboard, but of course they may be pivoted also with different movable parts of the same net. In this manner, the gearmotor unit 170 may be actuated in alternate rotation directions, together with the lever 169, with preset cadences, thereby determining a succession of alternate raising and lowering of the relative net movable parts, and therefore a specific massaging effect of the persons laid down on the net. Finally, in the Figure 28 it is shown an additional type of leverage for actuating one or more net movable parts, in the example referred to the two pairs of movable staves 166 and 167. This leverage is constituted by a crank gear 171, actuated by the gearmotor unit 170 housed into the container 25 and connected with the pairs of movable staves 166 and 167 with the same mechanism 172 described in the Figures 3 and 4, and this crank gear 171 is actuated by the gearmotor unit 170 with a continuous rotary motion in the same direction of rotation, the different operative steps of which are illustrated in the Figures 28a, b, c, d, with consequent successions of raising and lowering of the pairs of movable staves 166 and 167 with preset cadences, with a specific massaging effect of the persons laid down on the net.

Of course, according to the invention it is also possible to raise and to lower the various support frames of the pairs of movable staves and the headboard and footboard also with elements different than those described by way of a not-limiting example only, thus without departing from the protection sphere of the present invention.

Claims

1. Ergonomic support adjustable in height, such as for example a supporting net (5) and a chaise- longue (long seat), for supporting persons and adapting it to the different shapes of the persons back for supporting the same and providing also for a massaging effect, comprising a support structure (6 ; 72, 73) provided with lower legs (8 ; 75) to be laid on to the floor and, when it is used as a net in combination with beds and settees, it can be applied to and laid removably onto the

correspondent support structure of such beds and settees, the support being also constituted by a plurality of separated lengthened staves (9), which are curved convex and are applied on to said support structure (6 ; 72, 73) and grouped and joined to each other as well as distributed for the length and the width of the same support structure, characterized by a first pair of stationary staves (14 ; 81) arranged on the central zone of the net (5) or the chaise-longue, and constituting a horizontal rectilinear upper surface, and moreover by a set of pairs of movable staves (15, 16 ; 17, 18 ; 35, 36 ; 37, 38 ; 41, 42, 43 ; 82, 83 ; 84, 85) arranged approached to each other along the net (5) or the chaise-longue, from the one and the other one side of said first pair of stationary staves (14 ; 81), and situated in correspondence of lumbar zone and the glutaeus of the persons, said pair of movable staves (15, 16 ; 17, 18 ; 35, 36 ; 37, 38 ; 41 , 42, 43 ; 82, 83 ; 84, 85) being actuatable singly or contemporaneously by a first respective movable leverage (22 ; 50 ; 78) and by a second respective movable leverage (30 ; 51 ; 79), which are supported by longitudinal side edges (12, 13) in the case of the net and by a support structure (77) in the case of the chaise-longue, and are communicating to each other by means of a relative transversal shaft (23, 31 ; 52, 53) passing through a per se known gearmotor (24 ; 80), and actuatable in rotation by the component members of such gearmotor, which in turn is housed into a lengthened container (25) and can be operated in such a way that to displace said first and second respective movable leverage (22 ; 50 ; 78 ; 30 ; 51 ; 79) from a lowered rest position thereof, in which said pairs of movable staves (15, 16 ; 17, 18 ; 35, 36 ; 37, 38 ; 41, 42, 43 ; 82, 83 ; 84, 85) are aligned with said first pair of stationary central staves (14 ; 81) to a raised working position thereof, by passing through different intermediate positions, in which the same pairs of movable staves are projected upward and raised with respect to said first pair of stationary central staves (14 ; 81), and vice versa, said first and second respective movable leverage (22 ; 50 ; 78 ; 30 ; 51 ; 79) being also actuatable singly or contemporaneously in a continuous manner and for pre-established durations from the lowered position to the raised position thereof, and vice versa, for obtaining an invigorating relaxing massaging effect, and a de-contracting effect for the persons back.

2. Ergonomic support according to claim 1, characterized in that said pairs of movable staves are constituted by a second and a third pair of movable staves (15, 16), situated in correspondence of the persons lumbar zone and approached to further stationary staves (9) fixed to into said support structure (6) in a position aligned with said first pair of stationary staves (14) and constituting the bed headboard, said second and third pair of movable staves (15, 16) being actuatable from the raised to the lowered position thereof, and vice versa, by means of said first movable leverage (22), which is shaped with a first and a second short lever (26, 27) articulated to each other with their adjacent end portions, and the other end portions of which are articulated the one with a support bracket (28), secured below the relative said longitudinal side edge (12, 13), and into which the transversal shaft (23) is rotatable housed, and the other one with a relative lengthened flat plate (19) housed into two box-like guide members (20, 21) identical to each other and situated in

correspondence of the persons lumbar zone, in such a way that when said levers (26, 27) are displaced in the lowered position by the rotation of the shaft (23), also said flat plate (19) is lowered, by sliding into said box-like guide members (20, 21), with consequent lowering up to the rest position of both the pairs of movable staves (15, 16), so that these latter arrange themselves in the horizontal position, in which they are aligned with the remaining net staves (9), and that on the contrary when such levers (26, 27) are displaced in the raised position by the rotation of the shaft (23) said flat plate (19) too is raised, with consequent raising up to the desired position of both the pairs of movable staves (15, 16), so that these latter are projected upward and raised with respect to the remaining staves (9), and under this raised condition the lumbar zone of the back of the person being laid down arranges itself on to the staves of both the pairs of movable staves (15, 16), and thus allows to support and keep the back in this condition for the entire desired duration, and this situation appears extremely favourable and advantageous for the persons with back pathologies such as lumbagos and scoliosis, the ergonomic support being also characterized in that the pairs of movable staves are also constituted by a fourth and a fifth pair of movable staves (17, 18) situated in correspondence of the persons glutaeus and approached to additional stationary staves (9) secured to said support structure (6) in a position aligned with said first pair of stationary staves (14) and constituting the net footboard, said fourth and fifth pair of movable staves (17, 18) being also supported at their end portions by a flat plate (29), arranged on and assembled internally the relative longitudinal side edge (12, 13) and identical to the previous flat plate (19), and actuatable in its height by said second respective movable leverage (30), which is shaped in an identical and symmetrical manner with respect to the preceding movable leverage (22), as well as supported by the relative longitudinal side edge (12, 13), both the movable leverages (30) being communicating to each other by means of a further transversal shaft (31), which is parallel to and spaced away from the preceding shaft (23) and passing through said gearmotor unit (24) and also actuatable in the same lowered and raised positions thereof, each movable leverage (30) being shaped with a first and a second lever (32, 33) identical and symmetrical with respect to the preceding levers (26, 27) and articulated to each other and to a supporting bracket (34), fixed below the relative longitudinal side edge (12, 13), and into which said transversal shaft (31) is rotatable housed, as well as articulated to said flat plate (29), and displaceable from the lowered position thereof in which said pairs of movable staves (17, 18) are aligned with said pair of stationary staves (14), to the raised position thereof in which they support the person glutaeus, at the desired height and for the entire desired duration, and vice versa.

3. Ergonomic support according to claim 1 , characterized in that said pairs of movable staves are constituted by a second and a third pair of movable staves (35, 36), situated in correspondence of the persons lumbar zone, and by a fourth and a fifth pair of movable staves (37, 38) situated in correspondence of the persons back upper zone, as well as by a sixth and a seventh pair of movable staves (39, 40) situated in correspondence of the net headboard, said pairs of movable staves being also constituted by an eighth and a ninth pair of movable staves (41, 42) situated in correspondence of the persons glutaeus, and by an additional set of pairs of movable staves (43) situated in correspondence of the net footboard, wherein all the pairs of said stationary staves (14) and said movable staves (35, 36, 37, 38, 39, 40, 41, 42, 43) are supported by correspondent fixed frames (44) and movable frames (45, 46, 47, 48, 49) supported by the relative said longitudinal side edges (12, 13), said second, third, fourth, fifth, sixth and seventh pair of movable staves (35, 36, 37, 38, 39, 40) being actuatable by a first movable leverage (50), and said eighth and ninth pair and said additional pair of movable staves (41, 42, 43) being actuatable by a second movable leverage (51), wherein both said first movable leverages (50) are communicating to each other by means of a transversal shaft (52), passing through said gearmotor unit (24), and both said second movable leverages (51) are communicating to each other by means of a further transversal shaft (53) passing through said gearmotor unit (24), and both said transversal shafts (52, 53) being actuatable in rotation by the component members of said gearmotor unit (24), so as to displace each one of said leverages (50, 51) from a lowered position to a raised position thereof, and vice versa, each one of said first movable leverages (50) being shaped with a first and a second short lever (54, 55) and a third lever (56), which is longer than the levers (54, 55) and articulated with these latter at their adjacent end portions, while the other end portion of the first lever (54) is articulated with a relative bracket (57), fixed below the correspondent longitudinal side edge (12, 13) in correspondence of the end portion of the movable frame (45) approached to the pair of stationary staves (14), and the other end portion of the second lever (55) is articulated with a bracket (58) fixed below said movable frame (45) at the end portion opposed to the preceding one, and finally the other end portion of the third lever (56) is provided with a through slot (59) articulated by means of a stud (60) with a further fork-shaped bracket (61), by defining a portion (62) pivoted on to a bracket (63) fixed below the movable frame (46), at the end portion of this latter which is approached to the remaining headboard frame (47), and a lengthened and slightly curved portion (64) fixed below the movable frame (47) at the end portion of this latter which is approached to the preceding movable frame (46), and the end portions adjacent to each other of said movable frames (45, 46) being joined to each other by means of an articulation (65), and characterized in that each one of said second movable leverages (51) is shaped with a single short lever (66), articulated at its one end portion with a bracket (67) fixed below the relative side edge (12, 13), and at the other end portion with a further bracket (68) fixed below the movable frame (49), and the end portions adjacent to each other of said movable frames (48, 49) being joined to each other by means of an articulation (69), the arrangement being such that when both said first movable leverages (50) are displaced in the lowered position thereof by the rotation of the shaft (52), all said levers (54, 55, 56) are displaced in the lowered position thereof, under the condition in which said stud (60) slides along said through slot (59) up to its terminal position, with consequent lowering up to the rest position of all the pairs of movable staves (35, 36, 37, 38, 39, 40), so that all these pairs of staves arrange themselves in the horizontal position in which they are aligned with the remaining net staves (9), and that on the contrary when both the movable leverages (50) are displaced in the raised position by the rotation of the shaft (52), the first lever (54) rotates about the stud of the bracket (57) and may be displaced into different raised positions thereof, thereby determining the raising at different heights of said pairs of movable staves (35, 36, 37, 38, 39, 40), under the condition in which when the first lever (54) is rotated in a way to raise the pairs of movable staves in a first position thereof, the lever (55) raises itself slightly, by providing for at the one hand a correspondent slight raising of both the pairs of movable staves (35, 36) and the pair of movable staves (37, 38), which are constrained to the preceding ones with the joint (65), and at the other hand by displacing forward the lever (56), thanks to the sliding of the stud (60) along the through slot (59) until the terminal position opposed to the previous one, and that when the lever (54) is rotated additionally in the same direction, up to raise the levers (55, 56) in the highest raised position thereof, it is determined the raising of the pairs of movable staves (35, 36, 37, 38, 39, 40), thanks to the joint (65) too, under the condition in which the stud (60) again slides along the through slot (59) until the previous terminal position thereof, in a manner that the net (5) may be raised at different heights adjustable at will, so as to adapt itself to the curvature of the persons back and ensuring a comfortable support to the persons having or not having lumbar pathologies, scoliosis or lordosis etc...and also ensuring an effective support to the back upper part and the head of the persons, and moreover that when both the movable leverages (51) are displaced in the lowered position thereof by the rotation of the shaft (53), the levers (66) of such leverages are displaced in the lowered position thereof, with consequent lowering until the rest position of all the pairs of movable staves (41, 42) and the additional movable staves (43), so that all these staves arrange themselves in the horizontal position, in which they are aligned with the remaining net staves (9), and finally that when both the movable leverages (51) are displaced in the raised position thereof by the rotation of the shaft (53), the lever (66) rotates about both the stud of the bracket (67) and the stud of the bracket (68), and may be displaced into different raising positions thereof, thereby providing for the raising of both the pairs of staves (41, 42) and the additional staves (43), thanks to the joint (69) too, under the condition in which the glutaeus and the legs of the persons being laid on to the net may be raised.

4. Ergonomic support according to claim 3, characterized by at least a mechanism for regulating the sliding stroke of said stud (60) along said through slot (59), and therefore for regulating the raising height of said pairs of movable staves (35, 36, 37, 38, 39, 40), constituted preferably by a threaded bolt (70) which can be screwed and unscrewed in the inner thread of a bush (71), secured to said lengthened lever (56) and adapted to interfere with said stud (60), thereby limiting with a different extent the sliding stroke of said stud (60) along the same through slot.

5. Ergonomic support according to claim 1, characterized in that said support net (5) is constituted by a second and a third pair of movable staves (86, 87), situated in correspondence of the upper area of the persons back, and by a fourth and a fifth pair of movable staves (88, 89) situated in correspondence of the persons glutaeus, as well as by a first movable set (90) of four pairs of stationary staves (91) situated in correspondence of the net headboard, and finally by a second movable set (92) of four pairs of stationary staves (93) situated in correspondence of the footboard of the net (5), wherein all the pairs of staves, stationary and movable ones, are supported by correspondent fixed and movable frames supported by said peripheral frame (7), and in particular the staves (9) of the pair of said movable staves (86, 87 ; 88, 89) are fixed respectively at their end portions to correspondent movable frames (94, 95), and the set of pairs of movable staves (90, 92) are fixed respectively at their end portions to correspondent movable frames (96, 97), which movable frames (94, 95 ; 96, 97) are applied internally to the relative said longitudinal side edges (12 and 13), in a position approached to the same side edges, said two movable frames (94, 95) being actuated by leverages identical to those of the correspondent said leverages (22, 30), wherein said frame (96) of the headboard is supported by a first movable leverage (98), whereas said frame

(97) of the footboard is supported by a second movable leverage (99), said first movable leverage

(98) being formed by two movable leverages identical and communicating to each other by means of a transversal shaft (100), passing through a second independent gearmotor unit (101), secured to the back end portion of said lengthened container (25), and actuatable in rotation by the component members of the same gearmotor unit, and said second movable leverage (99) being formed by two movable leverages identical and communicating to each other by means of an additional transversal shaft (102), passing through a third independent gearmotor unit (103), secured to the front end portion of the above-mentioned lengthened container (25), and actuatable in rotation too, so as to displace each leverage from a lowered to a raised position thereof, and vice versa.

6. Ergonomic support according to claim 5, characterized in that each of said first leverages (98) is shaped with a single lever (104), articled at its one end portion to a bracket (105) secured below the relative side edge (12, 13), and in which said shaft (100) is pivoted, and provided at the other free end portion with a wheel (106), laid nearly on the middle of the frame (96) and sliding on to the lower surface of the same frame, during the displacement of said frame (96) from the one to the other one of its lowered and raised positions.

7. Ergonomic support according to claim 5, characterized in that each of said second leverages (99) is shaped with a single lever (108), articulated at its one end portion to a bracket (109) secured below the relative side edge (12 and 13), and pivoted with said shaft (102), and provided at the other free end portion with a wheel (110), laid nearly on the middle of the frame (97) and slidable on to the lower surface of the same frame, during the displacement of said frame (97) from the one to the other one of its lowered and raised positions.

8. Ergonomic support according to claim 1, characterized in that said net (5) is constituted by a second and a third pair of movable staves (113, 114), situated in correspondence of the upper area of the persons back, and by a first movable set (115) of four pairs of stationary staves (116) situated in correspondence of the net headboard, as well as by a second movable set (117) of four pairs of stationary staves (1 18) situated in correspondence of the footboard of the net (5), wherein the support elements (10) of said pairs of movable staves (1 13, 114) are fixed and supported by the studs (11) secured to a lengthened flat plate (19), housed into two box-like shaped guide members (20, 21) identical to each other and fixed inside the relative vertical rod of the frame (118), housing also said first movable set (1 15) of staves (1 16), and articulated at its lower end portion to the longitudinal side edge (12, 13), and said flat plate (19) being sliding in height into said box-like shaped guide members (20, 21) and actuatable from a lowered to a raised position thereof, by means of a first respective movable leverage (119), formed by two movable leverages supported by the opposed longitudinal side edge, which are communicating to each other by means of a transversal shaft (120) passing through a per se known gearmotor unit (24), and actuatable by the component members of such gearmotor unit, which in turn is housed in said lengthened container (25), and controllable through a control keyboard for displacing said flat plate (19) from a regulating lowered position to a raised position thereof, and vice versa, and, by continuing to raise said leverages (119) for displacing consequently also said frame (1 18) in a raised position thereof, and vice versa.

9. Ergonomic support according to claim 8, characterized in that each of said first movable leverages (119) is also shaped with a first and a second short lever (121, 122), of which the lower end portion of the first lever (121) is articulated with a support bracket (28), secured below the relative longitudinal side edge (12, 13) of the frame (7), and in which a transversal shaft (120) is housed in rotation, and the other free end portion of the lever (121) is provided with a wheel (124), laid on to the lower surface of said frame (1 18) and sliding on to the same, whereas the second lever (122) is pivoted at the lower end portion nearly on the middle of the first lever (121), and with its other end portion is pivoted with the relative lengthened flat plate (19), in such a way that when said levers (121, 122) are displaced in the lowered position by the rotation of said shaft (120), also the frame (1 18) and the flat plate (19) are lowered, by arranging themselves in an horizontal position, in which they are aligned with the remaining net staves (9) and on the contrary when such levers (121, 122) are displaced in the raised position by the rotation of the shaft (120), also the flat plate (19) is raised up, with the consequent raising up to the desired position of both the pairs of movable staves (113, 1 14), so that these latter are raised with respect to the remaining staves (9), and then, by continuing with the raising of the two levers (121, 122), the end portion of the lever (121) provided with the wheel (124) slides with this latter on to the frame (118), by raising the same, thereby supporting the back of the same persons on the net.

10. Ergonomic support according to the previous claims, characterized in that the support elements (10) of the set of said movable pairs (1 17) are fixed and supported by studs (1 1) fixed equally spaced from each other on to the inner side of a frame (127), articulated with the front end portion of the frame (7), said frame (127) being supported by a movable leverage (128) formed by two movable leverages identical to each other, which are shaped and fixed to the correspondent longitudinal side edges (12, 13) and are communicating to each other by means of the transversal shaft (53), passing through the gearmotor unit (24), and therefore actuatable by this latter, so as to displace each leverage (128) from a lowered to a raised position thereof, and vice versa.

11. Ergonomic support according to claim 10, characterized in that each movable leverage (128) is shaped with a single lever (129), articulated at its one end portion to a bracket (130) secured below the relative side edge (12, 13), and pivoted with the shaft (53), and provided at the other free end portion with a wheel (131), laid nearly on the middle of the frame (127) and sliding on to the lower surface thereof, during the displacement of said frame from the one to the other one of its lowered and raised positions.

12. Ergonomic support according to claim 1 1, characterized in that said movable leverages (128) may be also shaped with a first and a second short lever (132, 133), having the same length, articulated with their adjacent end portions, whereas the other end portion of the first lever (132) is articulated with a relative bracket (134), secured below the correspondent longitudinal side edge (12, 13), in correspondence of the end portion of the pairs of movable staves (1 17), and the other end portion of the second lever (133) is articulated with a bracket (135) secured below the movable frame (127), in such a way that both the movable leverages (128) are displaced from the rest position thereof, to the raised position by the rotation of the shaft (53), the first lever (132) rotates around the stud of the bracket (134) and may be displaced into different raised positions, while the lever (133) can be also displaced in the raised position, thereby raising the frame (127).

13. Ergonomic support according to claim 1 1, characterized in that such movable leverages (128) may be additionally provided with a gear (136) with horizontal axis, fixed to the shaft (53), below the correspondent longitudinal side edge (12, 13), in correspondence of the end portion of the pairs of movable staves (117), and in turn engaged with a vertical rack (137), slidable fixed into a guide member (138) secured on the inner side of the longitudinal edge sides (12, 13), and the upper end portion (139) of which is articulated with the underlying part of the frame (127), near the pair of staves (14), in such a way that when both the movable leverages (128) are displaced from the rest position thereof, in which the staves (9) are all horizontally aligned, to the raised position by the rotation of the shaft (53), said gear (136) rotates and lifts the vertical rack (137), which therefore can be displaced into different raised positions, thereby raising the frame (127), in the reverse raised position of the footboard.

14. Ergonomic support according to the previous claims, characterized in that said net is substantially formed by three pairs of stationary staves (140), arranged in the central area of the net (5) and constituting an horizontal rectilinear upper surface, and moreover by a first movable set (141) of six pairs of stationary staves (142) situated in correspondence of the net headboard, and finally by a second movable set (143) of four pairs of stationary staves (144) situated in

correspondence of the net footboard, said first movable set (141) being assembled with said fixing elements (10) to a frame (145), which is articulated at its lower end portion to the inner part of the longitudinal side edges (12, 13), in correspondence of the pairs of stationary staves (140), and supported by a movable leverage (146) formed by two movable leverages identical to each other , and shaped and fixed to the correspondent longitudinal side edges (12, 13), wherein both the movable leverages (146) are actuatable manually by the user and shaped with a telescopic guide element (147), with pre-established locking positions in order to be able to stop the frame (145) in the desired position, and are articulated at their lower end portion (148) in the back area of the side edges (12, 13), and at their upper end portion (149) nearly to the middle of said frame (145), so as to be able to displace it from a rest position in which all the staves (9) are horizontally aligned, to a raised position desired by the user for supporting his back, and said second movable set (143) being assembled with said fixing element (10) to a frame (150), which is articulated at its lower end portion to the inner part of the longitudinal side edges (12, 13), in correspondence of the front part of these latter, and it is supported by a movable leverage (151) formed by two movable leverages identical to each other and shaped and fixed to correspondent longitudinal side edges (12, 13), both said movable leverages (151) being actuatable manually by the user.

15. Ergonomic support according to claim 14, characterized in that said movable leverages (151) are shaped with a telescopic guide element (152), having pre-established locking positions in order to be able to stop the frame (150) in the desired position, and are articulated at their lower end portion (153) to the front area of the side edges (12, 13), and at their upper end portion (154) nearly to the middle of said frame (150), so as to be able to displace it from a rest position in which all the staves (9) are horizontally aligned, to a raised position desired by the user for supporting and stretching his legs, by making a static massage to him, in the reverse raised position of the footboard.

16. Ergonomic support according to claim 14, characterized in that such movable leverages (151) may be also shaped with a first and a second short lever (155, 156), with the same length and articulated with one end portion thereof, and joined to an additional lever (157), which is sliding on to the first one and articulated on to the second one, and more particularly said first lever (155) being secured horizontally to the inner part of the longitudinal side edges (12, 13), in

correspondence of the end portion of the pairs of movable staves (143), whereas said second lever (156) being articulated with the first lever (155) near the pair of stationary staves (140), and articulated at its middle with the upper end portion of the lever (157), whereas the lower end portion of this latter being sliding into a guide member provided in the first lever (155), and in

correspondence of such leverages (151) being provided, in the underlying part of the frame (150), a housing (157'), which in the footboard rest position arranges itself onto the levers (155, 156 ; 157) folded to each other, in such a way that the staves (9) are all horizontally aligned and that when the lever (156) is raised manually by the user, the lever (157) slides into the guide member of the lever (155) and tends to position itself vertically, and the free end portion of such lever ( 156) in turn raises the frame (150), which with its own weight pushes the lever (157) downward, thereby preventing the leverage (151) to be closed in the rest position thereof, and that on the contrary for coming back into the rest position the user raises the frame (150), by moving it away from the leverage (151), so to be able to move this latter with extreme simplicity.

17. Ergonomic support according to claim 14, characterized in that such movable leverages (151) may be additionally provided with a first and a second short lever (158, 159), with the same length and articulated with their end portions which are adjacent to each other, wherein the other free end portion of the lever (158) is articulated with a bracket (160) secured below the support frame of the pairs of staves (140), and the other free end portion of the lever (159) is articulated with a bracket (161) secured with the end portion of the frame (150), said two levers (158, 159) being joined to each other by and additional lever (162), slidable with the lower end portion into a guide member of a per se known locking system, provided in the first lever, and which is articulated with the upper end portion of the second lever, nearly in its middle, in such a way that when the frame (150) is raised manually by the user, the lever (162) slides into the guide member of the lever (158) and tends to position itself vertically, while the two levers (158, 159) open themselves as scissors from their horizontal position and, through the locking system of the guide member of the first lever (158), place the frame (150) in the desired position, for then unlocking and bringing back the same in the lowered position, in which all the staves (9) are horizontally aligned, and under this condition the footboard is displaced in the reverse raised position.

18. Ergonomic support according to claim 14, characterized in that such movable leverages (151), may be also shaped with a single short lever (163), the lower end portion of which is articulated in the underlying part of the longitudinal side edges (12, 13), in correspondence nearly to the middle of the frame (150), which in turn is provided with a set of pins (164), arranged in correspondence of the same lever (163), in such a way that when the frame (150) is raised manually by the user from the rest position thereof, in which all the staves (9) are all horizontally aligned, the lever (163) is raised contemporaneously and engages with its upper shaped end portion (165) the one of said pins (164), by positioning the frame (150) in one of the desired positions, from which is then disengaged and brought back in the rest position thereof.

19. Ergonomic support according to the previous claims, characterized in that said support net (5) is provided with at least two leverages (128), each one shaped with said gear (136) and said vertical rack (137), associated with a relative net movable part, and actuatable singularly or collectively, for determining an alternate movement of raising and lowering of said movable parts with pre- established cadences, and for massaging the persons laying down on the net.

20. Ergonomic support according to previous claims, characterized in that said net is provided with an additional type of leverage (168), constituted by a lengthened lever (169) actuated by the gearmotor unit (170) and pivoted at its end portions to a correspondent net movable part, in such a way that said gearmotor unit (170) may actuate in alternate rotation directions said lever (169), with pre-established cadences, thereby determining a succession of alternate raising and lowering of the relative movable parts, and therefore a specific massaging effect of the persons laying down on the net.

21. Ergonomic support according to previous claims, characterized by an additional type of leverage comprising a crank gear (171) actuated by a gearmotor unit (170) and connected to at least a net movable part, and actuatable with a continuous rotary movement in the same direction of rotation, with consequent successions of raising and lowering of the relative movable parts with pre-established cadences, with a specific massaging effect of the persons laying down on the net.