Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
  • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
  • A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
  • A47C27/144—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities inside the mattress or cushion
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
  • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
  • A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
  • A47C27/146—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities on the outside surface of the mattress or cushion
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
  • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
  • A47C27/15—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays consisting of two or more layers

Definitions

• the present invention concerns the technical field relative to mattresses for rest.
• the invention refers to an innovative layer suitable for forming a mattress, in a material such as polyurethane, polyurethane foams, latex and the like, and provided with particular slots that favor, in addition to the aeration, the flexibility thereof and therefore its capacity to fold to follow the profile of an electric bed spring.
• Electric bed springs have long been known. A schematization of an electric bed spring is shown in figure 1.
• Each part is therefore an independent box, hinged to the adjacent one, and generally provided with wooden slats arranged transversally to support the mattress. In this way, a rigid support is created.
• An electric engine is connected to the parts that are hinged among them through actuators.
• the various parts as indicated by the direction of the double arrows of figure 1, can rotate among them, creating different inclinations that allow the bed spring to assume different forms.
• a specific remote control allows the user to operate each part according to the desired inclination.
• the user can switch to the position with the back lifted, or with the legs lifted or both positions contextually, finding intermediate positions.
• the user can find, according.. to the needs, the most idoneous and comfortable position for him, for instance is he wants to read a book before falling asleep or if for health reasons he has the need to have the legs lifted or the back lifted.
• the mattresses that are destined to this type of electric bed spring must inevitably have an optimal flexibility in order to be able to fold easily and follow the profile of the electric bed spring without creating bucklings.
• the classical spring mattresses are not used but rather mattresses are used that are formed by one or more overlapped layers of a material of foamy nature, such as for example polyurethane, latex and the like.
• Figure 2 schematizes a thus-made mattress of the known art.
• the mattress can be realized in a single layer or, as shown in figure 2, in more layers, preferably three layers overlapped one to the other and glued.
• the mattress 10 of figure 2 is formed by three layers and of which two external layers 11 and 12 and one intermediate layer 13.
• the external layers can be provided with passing slots for the aeration and such slots are kept in an open configuration thanks to the glued intermediate layer and that generates a traction ( T ) in the direction orthogonal to that of development of the slot.
• the slots are kept in an open position and favor the aeration of the mattress.
• the technical problem concerns the fact that, when applied on the bed spring, the mattress hardly tends to follow the profile of this during its movement.
• the mattress When the bed spring is moved in the various inclined positions, for example lifted backrest and/or lifted legs, the mattress is not able to follow this profile and often it is subject to a buckling, assuming positions that result to be uncomfortable or even not healthy for the user. Such wrong postures, in the long run, can cause painful articular problems.
• such mattress (100) in foamy material for an articled support bed spring (1) of the electric type comprises at least one layer (110, 120, 130) in foamy material provided with a plurality of slots.
• said slots develop in a direction that goes from a side of the mattress towards the opposite side in a manner that is substantially orthogonal to the plane of rotation of the articled support bed spring where, in use, the mattress is destined to be applied.
• such mattress (200), always in foamy material for an articled support bed spring (1) of the electric type comprises at least one layer (210, 220) in foamy material.
• the slots in the layer can be substituted by open holes (71), said open holes developing in length according to a direction that goes from a side of the mattress towards the opposite side in a manner that is substantially orthogonal to the plane of rotation of the articled support bed spring where, in use, the mattress is destined to be applied.
• the configuration with the open holes makes that the opening and closure motion of the same is reduced with respect to the case with slots (being already in the form of open holes) and this lengthens the life of the mattress, avoiding tears along the vertexes of the holes themselves.
• the mattress does not incur deformations due to a permanent stress state, as it happens instead in the solution with slots that are kept open precisely through the gluing with the intermediate layer.
• the conformation of the open hole is substantially rhomboidal or oval.
• the mattress can be realized in polyurethane material or latex.
• At least three overlapped layers (110, 120, 130; 210, 220) can be foreseen.
• At least one intermediate layer (130; 220), uncut, and two external layers (110, 120; 210), cur or presenting open holes, according to the case, can be foreseen.
• the slots or the open holes are passing through the entire thickness of the layer where obtained .
• a mattress (100) in foamy material and of an articled support bed spring (1) of the electric type on which the mattress is placed the mattress comprising at least one layer (110, 120, 130) in foamy material provided with a plurality of slots and characterized in that said slots develop in a direction that goes from a side of the mattress towards the opposite side in a manner that is substantially orthogonal to the plane of rotation of the articled support bed spring where, in use, it is destined to be applied.
• a mattress (200) in foamy material and of an articled support bed spring (1) of the electric type on which the mattress is placed the mattress comprising at least one layer (210, 220) in foamy material and wherein said slots are substituted by open holes (71), said open holes developing in length according to a direction that goes from a side of the mattress towards the opposite side in a manner that is substantially orthogonal to the plane of rotation of the articled support bed spring where, in use, the mattress is destined to be applied.
• the conformation of the open hole is substantially rhomboidal or oval.
• the mattress is realized in polyurethane material or latex.
• At least three overlapped layers (110, 120, 130; 210, 220) can be foreseen.
• At least one intermediate layer (130; 220), uncut, and two external layers (110, 120; 210), cur or presenting open holes, according to the case, can be foreseen.
• the slots or the open holes are passing through the entire thickness of the layer where obtained .
• a method to favor the inflexion of a mattress (100) in foamy material when it is placed on an articled support bed spring (1) of the electric type the mattress comprising at least one layer (210, 220) in foamy material and said method foreseeing the operation of realization of a plurality of slots in said layer and whose direction of development moves from a side of the mattress towards the opposite side in a manner that is substantially orthogonal to the plane of rotation of the articled support bed spring on which the mattress is applied.
• a method to favor the . inflexion of a mattress (100) in foamy material when it is placed on an articled support bed spring (1) of the electric type the mattress comprising at least one layer in foamy material and said method foreseeing the operation of realization of a plurality of openings in the form of open holes (71), said open holes developing in length according to a direction that moves from a side of the mattress towards the opposite side in a manner that is substantially orthogonal to the plane of rotation of the articled support bed spring on which the mattress is applied .
• the conformation of the open hole is substantially rhomboidal or oval.
• the mattress can be realized in polyurethane material or latex.
• At least three overlapped layers (110, 120, 130; 210, 220) can be foreseen.
• At least one intermediate layer (130; 220), uncut or not presenting open holes, and two external layers (110, 120; 210), cut or presenting open holes can be foreseen.
• the slots or the open holes are passing through the entire thickness of the layer where obtained .
• FIG. 1 shows an electric bed spring in accordance with the known art
• Figure 2 shows a mattress in accordance with the known art and provided with aeration holes
• Figure 3 shows a mattress provided with slots in accordance with the invention and that favor the flexibility of the mattress.
• Figure 4 shows a schematization in an axonometric view of such mattress in accordance with the invention
• FIG. 5 and figure 6 show a schematization of the mattress applied on the bed spring
• Figures from 7 to 11 show a variant of the invention in which the blade used creates a proper open hole of a pre-determined geometry.
• figure 3 shows a mattress in accordance with the invention.
• the mattress can, for example, be realized in a single layer or, as shown in the axonometric view of figure 4, can be realized in more layers, for example three layers.
• the preferred configuration of the invention is, in fact, described in figure 4 with a mattress 100 realized in three layers, that is two external layers (110, 120) and one (or eventually more) intermediate layer/layers 130.
• the materials that can be used are preferably foamy materials glueable in a mold, such as polyurethane or latex.
• the layers can be all of the same material or of different materials.
• the three layers are glued one to the other and the external layers foresee passing slots.
• the external layer 110 and the external layer 120 are therefore glued to the intermediate layer 130 (lacking slots) in such a way that the holes can be subject to a traction ( Tx ) that keeps them. open.
• the production phase foresees the passage of the layer 110 and 120 singularly under a machine with blades that incise during its passage.
• the slot develops in a direction (V) that is that orthogonal to the plane of rotation of the bed spring on which the mattress is destined to be applied.
• figure 5 shows in a simplified way the mattress with the slots and the underlying bed spring to which it is destined.
• the underlying bed spring is provided with pivots 11 and 12 and in this way the part 2 and the part 4 are rotatable with respect to the central part 3.
• the figure shows around the zips the double direction of rotation and the vector (V) is highlighted that represents a vector orthogonal to the plane of rotation and parallel to the direction of the zips.
• the slots must be such that, in use, when the mattress is positioned on the bed spring, the slots move from a side to the other of the bed spring along the direction of the zips of rotation.
• figure 6 shows a mattress made of three layers and arranged on an electric bed spring that has been brought to a flexed position so as to create a sort of seat.
• the slots develops in a direction that goes from a side to the opposite side of the bed spring and therefore in the direction of said vector (V) (direction of the axis of the zips of the bed spring) .
• V vector
• any inflexion of the bed spring is much better followed by the mattress in which such slots widen and narrow in an accordion-like manner .
• the conformation is such that the slots are similarly open both in the superior layer and in the underlying one.
• the various cut layers that will make the mattress are passed under a machine provided with blades that penetrate in the mattress, realizing the passing cut.
• the blade is of a thin thickness (of the order of some millimeters) and therefore the cut is a net cut that removes very few material (generally there is no removal of material but a substantial separation of two edges that remain adjacent between them in contact) .
• the layer In order to have an opening it is necessary to stress the layer in such a way that the stress applied moves apart between them the edges of the slot, opening it as a consequence and thus creating an open hole.
• a first layer thus cut is glued to an intermediate layer lacking slots and the coupling takes place with the cut layer that is ironed in the direction of opening of the slots, and therefore stressed and with the holes that thus result to be open.
• a punching is now made, with a blade of appropriate form that removes an area of material .
• the area is in this non limiting example of the rhomboidal type and foresees four walls 61, each one forming a cutting blade, which are connected between them according to a certain angle, in such a way as to delimit a closed area 60 of cut with form in rhomboidal plane.
• the internal area 60 delimited by such blades 61 is obviously empty to allow the passage of the equivalent removed material (removed material 70 shown in figure 9) .
• Figure 8 schematizes, in a portion of layer, the passing holes 71 that are obtained and that, unlike, the configuration with a flat blade, are now holes that are in fact open according to the geometry of the cutting blade (in this particular case of rhomboidal form) .
• figure 9 shows material removed by a so-made blade.
• the perimetric conformation of such blade can be any, for example ovoid, round, rhomboidal, rectangular with a much greater length with respect to the width, etc.
• the preferred conformations are anyway similar to the slot of the first configuration, precisely to favor the folding of the mattress.
• Such open holes have a development in length (the direction orthogonal to the plane of rotation) that must preferably be have prevalent dimensions with respect to the width of the same. For this reason, rhomboidal, oval, or other forms are preferred, while a circular form, even if realizable, does not allow to facilitate the inflexion of the mattress on the bed spring in an optimal way.
• Circular holes for example, could be realized, using a punch of a pre-determined diameter, but this solution, even if functional, is not optimal since the circular hole cannot develop prevalently in the direction orthogonal to the axis of folding of the mattress and therefore does not have the same beneficial effect of the invention in favoring the folding of the mattress.
• independent blades can eventually be used that penetrate in succession or contextually, delimiting anyway a closed area of removal of material.
• Figure 10 and figure 11 show the application of a layer thus cut on an underlying integral layer.
• connection as for the preceding case, can be made, for example, through gluing.
• the preferred configuration of the invention foresees, as for the preceding case, a mattress formed by one or more uncut intermediate layers and by two external layers that instead present the holes as described.

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• Mattresses And Other Support Structures For Chairs And Beds (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=54288938

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Family Cites Families (5)

• 2015
  • 2015-07-07 IT ITUB2015A001911A patent/ITUB20151911A1/it unknown
• 2016
  • 2016-03-23 EP EP16726421.7A patent/EP3319485A1/en not_active Withdrawn
  • 2016-03-23 WO PCT/IB2016/051629 patent/WO2017006190A1/en active Application Filing

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