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EP2721966A1 - Matratzenstruktur mit verbessertem Komfort - Google Patents

Matratzenstruktur mit verbessertem Komfort Download PDF

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Publication number
EP2721966A1
EP2721966A1 EP13189142.6A EP13189142A EP2721966A1 EP 2721966 A1 EP2721966 A1 EP 2721966A1 EP 13189142 A EP13189142 A EP 13189142A EP 2721966 A1 EP2721966 A1 EP 2721966A1
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EP
European Patent Office
Prior art keywords
mattress
structure according
mattresses
matelas
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13189142.6A
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English (en)
French (fr)
Inventor
Francis Breme
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Financiere Europeenne De Literie Cie
Original Assignee
Financiere Europeenne De Literie Cie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Financiere Europeenne De Literie Cie filed Critical Financiere Europeenne De Literie Cie
Publication of EP2721966A1 publication Critical patent/EP2721966A1/de
Withdrawn legal-status Critical Current

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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
    • A47C27/001—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with several cushions, mattresses or the like, to be put together in one cover
    • 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 invention relates to a mattress structure and a bedding assembly comprising such a structure.
  • mattress manufacturers design and manufacture mattresses that can be composed of a lower support layer and a top comfort plateau home.
  • This type of mattress which can be reversible or not depending on the manufacturer, is in the form of a single mattress enclosed within a fabric envelope. It has hardness and density characteristics that sometimes prove insufficient in terms of comfort for some users.
  • Mattresses can have a relatively large thickness of the order of 30 cm or more and the resulting weight makes their handling difficult. This phenomenon is aggravated when it comes to a double bed (sleeping for two people).
  • the conditioning of the mattress and the mattress for transport / delivery is not particularly simple.
  • the mattress is wrapped automatically in a plastic cover while the mattress, not rigid and relatively light, lends itself rather poorly to automated laminating operations.
  • the conditioning of the over-mattress requires, however, a specific treatment chain that is distinct from that of the mattress.
  • This mattress structure in at least two separable parts (independent), stackable and similar thicknesses (unlike a mattress and an over-mattress) overcomes the problem of heterogeneous conditioning of the prior art: with the invention the two mattresses are packaged with the same processing chain, thereby simplifying the packaging and therefore the process of industrialization.
  • each mattress is easier than that of a single mattress whose thickness corresponds to the sum of the thicknesses of the two mattresses.
  • the support and reception mattress elements are designed according to each other, that is to say that each of the mattresses alone does not have the qualities required in terms of support and comfort of welcome to make a mattress itself enough.
  • the support and reception mattress elements are complementary to one another in terms of comfort, which enables them to ensure optimum comfort whatever the use (indentation) and the morphology of the user. It is thus possible to design a mattress structure with optimal properties in terms of comfort. Designing a mattress structure with equivalent properties according to the prior art would lead to a very thick mattress, therefore very heavy and very difficult to transport.
  • the above mattress structure is intended to be arranged on a bed base for example of conventional type which provides a support function (independent) of the structure.
  • the above mattress structure is particularly interesting for a double coating in which the dimensions (width, length) of the coating already impose a certain weight to lift during handling.
  • the structure in two separate mattresses is therefore more easily manipulated.
  • a mattress structure 10 is formed of two superimposed mattresses: a so-called lower mattress 12 and a so-called upper mattress 14 disposed in contact with the lower mattress and placed above it.
  • Each mattress is enclosed in a separate fabric envelope and can thus be handled independently of the other mattress.
  • the two mattresses 12 and 14 have respective thicknesses that vary at most 20% relative to each other, which balances the structure of two-piece mattress of very similar thicknesses and weights (less than 35 kg) that facilitate their handling.
  • Such mattresses are, for example, conveyed to a gauntlet station which is suitable for braiding mattresses whose core has a predetermined minimum thickness which, generally, is not adapted to the braiding of over-mattresses whose thickness may be 7 cm or less.
  • the conveyors used on the production lines are not suitable for conveying over-mattresses that are too light.
  • Such mattresses are further conditioned (for transport) in the same way (eg wrapped in a plastic cover), while much thinner mattresses such as over-mattresses require specific packaging that complicates the process of 'industrialization.
  • the structure 10 has a total thickness which can be between 18 and 35 cm.
  • the lower mattress 12 includes a support mattress element that provides supportive comfort. It acts as a shock absorber and ensures the pushing and holding of the body in a horizontal position.
  • the upper mattress 14 includes a home comfort mattress element that maximizes contact with the wearer's body at the indentation limit.
  • the support mattress element has a hardness greater than that of the mattress element, which makes the mattress structure irreversible: the upper face 14a of the upper mattress 14 constitutes the single coating surface of the structure 10.
  • the lower mattress 12 is indeed too hard to provide a mattress providing a satisfactory reception comfort for users.
  • an anti-slip element 16 for example honeycomb, is interposed between the two superimposed mattresses 12, 14 to limit the risk of sliding from one mattress to another.
  • This anti-slip element can be part of one of the two mattresses and, for example, the lower mattress (more particularly, it can be part of the upper plate of the lower mattress or constitute the tray itself).
  • the upper mattress 14 is lined on its upper face 14a and on its opposite lower face 14b which is opposite the upper face 12a of the lower mattress 12.
  • the lower mattress 12 is, for its part, only lined on its opposite lower face 12b .
  • the figure 2 schematically illustrates the braiding of the two mattresses as just described.
  • the gaiting operation consists in assembling, using a strap, one of the trays (upper and / or lower) of the mattress with a peripheral band disposed against the lateral faces of the mattress.
  • the strap (cloth tape) clips the adjacent edges of the tray and tape and is sewn to permanently assemble the tray and tape together.
  • the quilted peripheral band is formed of a fabric, a foam of 7 to 10 mm and a nonwoven, all of which are sewn together to form a homogeneous assembly.
  • the upper mattress 14 is thus provided with a lower lug 14c at its lower face 14b and an upper lug 14d at its upper face 14a.
  • the lower mattress 12 comprises a peripheral band 12c which forms a return 12c1 on the upper face 12a, thus covering the upper peripheral edge of the mattress from above.
  • the face 12a is for example formed, with the exception of the rounded peripheral edge formed by the return 12c1, a non-slip honeycomb fabric which plays the role of the element 16 on the figure 1 .
  • Only the lower face 12b of the mattress is provided at its periphery with a lower loop 12d.
  • the upper mattress is therefore able to cover the lower mattress by covering with its lower band 14c the rounded edge 12c1 of the band of the lower mattress, thus providing a perfect positional and dimensional adjustment.
  • the structure 10 may further comprise an intermediate mattress element (optional) which is disposed within the upper mattress casing.
  • This intermediate element provides an intermediate comfort that harmoniously accompanies the depression of the body in the mattress. This allows to adjust and optimize the overall comfort offered to the user by the mattress structure.
  • the support mattress element, for example of honeycomb structure (foam), of the lower mattress 12 has a hardness of 40% ILD between 50 and 150N, for example greater than 90N, which is measured in accordance with the European standard EN ISO 2439 .
  • the ILD expression means "Indentation Load Deflection" in English terminology and thus corresponds to displacement under an indentation load.
  • the term “hardness ILD 40%” characterizes the hardness of the cellular structure (foam) which corresponds to the driving force (measured) necessary to drive the thickness of the honeycomb structure by 40% .
  • the support mattress element has, for example, a density greater than 42kg / m 3 .
  • the receiving mattress element for example of honeycomb structure (foam)
  • the upper mattress 14 has a hardness ILD 40%, lower than that of the lower mattress, between 30 and 120N, for example less than 90N. This hardness is also measured according to the European standard EN ISO 2439.
  • the mattress element has, for example, a density of less than 50kg / m 3 .
  • the intermediate mattress element for example cellular structure (foam)
  • the intermediate mattress element has, for example, a density of less than 60 kg / m 3 .
  • the mattress structure provides comfort at three distinct levels of comfort that ensure progressive penetration and a feeling of immediate relaxation.
  • the technical characteristics of the two mattresses are designed so that the mattress structure formed of the two superimposed mattresses has a depression curve which lies in the area A illustrated in dashed lines on the figure 3 .
  • the sinking curves which are part of this zone have a profile which is representative of the optimum comfort properties for the mattress structures according to the invention, whatever the indentation and the morphology of the user.
  • Depression curves or force-displacement curves are obtained by applying to each mattress structure a downward vertical force via a tool provided with a pad on its face intended to come into contact with the upper mattress, in the conditions fixed by the NF EN 1957 standard. We then measure the distance (depression or elongation) on which the mattress has sunk (depth or thickness of the mattress).
  • the environment of the room in which the measurements were made has a temperature of 23 +/- 2 ° C and a relative humidity of 50 +/- 10% RH.
  • a pad 35cm in diameter with rounded edges and a convex underside in contact with the mattress is used.
  • the test T003.5 provided in the NF EN 1957 standard is carried out and the pad is pressed into the middle of the mattress.
  • the figure 3 represents four driving curves A1, A2, A3, A4, which are inscribed inside the envelope A and which correspond to examples of mattress structure according to the invention, the description of which will be provided later.
  • the contours of zone A are given by the contours of the extreme curves A1 and A4 and the vertices of the four curves.
  • Each curve for example the curve A1 begins in its lower part denoted “a” by a “plateau” effect (when there is foam in the mattress, otherwise, with springs, the curve starts with a straight line ), then the slope increases slowly (intermediate part b) to reach the highest point.
  • the slope of the curve before reaching the highest point characterizes the sensation of hardness made by the mattress structure when the user lies on it. The more the slope of the end of the curve (part c) is vertical, the higher the hardness.
  • the curve then descends to return to its starting point but following a path (part d) different from the path of the go (parts a, b, and c). This difference between the forward curve portion and the return curve portion is explained by the energy absorbed by the material during the depression. The smaller the area delimited by the two curve portions, the greater the lift sensation of the mattress structure.
  • the four curves A1-A4 have intermediate portions b with relatively smooth slopes and which extend over a greater length than in the prior art, which allows the mattress structure to provide a fairly constant comfort over a large area. comfort range.
  • the curves of the mattress structures according to the invention extend over a range of comfort that goes up to 150mm of elongation for an applied force of up to 1000N, whereas in the prior art (for a mattress finer having a low density foam), for the same range of applied forces the elongation is only up to 90 or 100mm.
  • the four curves A1-A4 also have relatively low end-of-curve slopes compared with the prior art, which reveals a relatively low hardness and a great feeling of comfort for heavy users (strong indentation).
  • a guideline of 10 means that we obtain an elongation of 20 mm by applying a force of 200N.
  • a mattress curve with a guideline less than 9 would be a mattress much too thick and therefore very difficult to handle.
  • a mattress curve with a coefficient higher than 15 would correspond to a mattress that would not provide the expected comfort because the user would have the feeling of being in abutment on the bed base (or on the wooden board used during the tests and which is placed under the lower mattress).
  • the mattress structure according to the invention noted 20 comprises two superimposed mattresses: a so-called lower mattress 22 and a so-called upper mattress 24 disposed in contact with the lower mattress and placed above it.
  • Each mattress is enclosed in a separate fabric envelope as in the first embodiment and a non-slip member 26 is provided to limit slippage between the two mattresses.
  • the other features and advantages presented in connection with the first mode and, in particular, the curves of the figure 3 also apply for the second mode.
  • the intermediate mattress element is disposed inside the upper mattress cover 24 and not in the lower mattress 22.
  • the structure may comprise a peripheral reinforcing edge of each mattress. This border extends throughout the thickness of each of the mattresses.
  • the intermediate mattress element (optional) is disposed inside a casing distinct from that of the lower and upper mattresses.
  • This third envelope constitutes an intermediate mattress 32 arranged between the lower mattress 34 and the upper mattress 36.
  • Each mattress has a thickness that differs by at most 20% from that of the other mattresses and the overall thickness of the structure 30 does not exceed 35 cm.
  • the figure 6 illustrates the superposition of the three mattresses 32, 34, 36 with their straps.
  • the intermediate mattress 32 and lower 34 are, in turn, lined only on their lower face, and are provided with a respective peripheral band 32a, 34a, which surrounds the lateral faces of the mattress and covers the peripheral edge of their upper face ( as for the figure 2 ), thus allowing the appropriate stacking of the three mattresses as for the stacking of the figure 2 .
  • the figure 7 represents an example of a mattress structure 40 according to the first embodiment of the figure 1 with a lower mattress 42 and an upper mattress 44.
  • a quilted tray 42c (a tray is formed of a tick, a foam and a non-woven stitched together), for example 10mm thick, is glued on the underside of the element 42a. This tray ensures a good finish of the lower mattress padded on its underside.
  • a quilted plate 44f (a plate is formed of a tick, a foam and a non-woven stitched together), for example 10mm thick, is glued on the underside of the element 44a. This tray ensures a good finish of the upper mattress padded on its underside.
  • Other mattress structures Figures 8 to 10 also include the two trays 42c and 44f but these are not shown in these figures.
  • the thickness of the lower mattress is 15cm and that of the upper mattress of 16cm. The same is true of the structures of the Figures 8 and 9 .
  • the mattress structure of the figure 7 presents the indentation curve A1 of the figure 3 .
  • the figure 8 is an alternative embodiment of the mattress structure 40 of the figure 7 with a lower mattress 52 and an upper mattress 54.
  • the lower and upper 52 mattresses 54 respectively differ from the lower 42 and upper 44 mattresses by the elements 52a and 54a, the other elements being identical.
  • the support comfort element 52a forms a foam core having a thickness of, for example, 130mm, a 40% ILD hardness of 90N and a density of 50kg / m3.
  • the intermediate comfort element 54a forms a foam core having a thickness of, for example, 100mm, a hardness of 40% ILD 40N and a density of 50kg / m3.
  • the mattress structure of the figure 8 presents the indentation curve A3 of the figure 3 .
  • the figure 9 is an alternative embodiment of the mattress structure 50 of the figure 8 with a lower mattress 62 and an upper mattress 64.
  • the lower mattress 62 is identical to the lower mattress 52.
  • the upper mattress 64 differs from the upper mattress 54 by the elements 64a and 64b, the other elements being identical.
  • the intermediate comfort element 64a forms a visco elastic foam core having a thickness of, for example, 100 mm, a 40% ILD hardness of 40 N and a density of 50 kg / m 3.
  • the element 64b is an elastic visco-elastic foam having, for example, a thickness of 25 mm, a 40% ILD hardness of 40 N and a density of 50 kg / m 3.
  • the mattress structure of the figure 9 presents the indentation curve A4 of the figure 3 .
  • the three elements or layers 44b, 44c, 44d ( Figs. 7 and 8 ) and 44b, 44c, 64b ( Fig. 9 ) improve the swelling character / appearance of the tray.
  • the three constituent materials of these three elements are optimized to provide better resistance to fatigue of all three elements and thus the structure.
  • the combined effect of the three materials is a good compromise to ensure longevity, comfort and visual (swelling) of the structure. It should be noted that the values of the parameters (thickness, density, hardness, etc.) may however vary by a few percent without degrading the characteristics / properties of the whole.
  • the figure 10 is an alternative embodiment of the mattress structure 40 of the figure 7 with a lower mattress 72 and an upper mattress 74.
  • the foam of the first member 72a is harder than that of the second member 72b and the member 74b to limit the indentation of the mattress structure.
  • the upper mattress thanks to its element 74b, provides an enveloping effect that is prolonged in time with the effect produced by the foam of the second element 72b.
  • the harder foam of the first element is there to end the indentation. In the absence of this harder foam a too heavy person would sink far too deep into the mattress structure.
  • the thickness of the lower mattress is 15cm and that of the upper mattress of 14cm.
  • the mattress structure of the figure 10 presents the indentation curve A2 of the figure 3 .
  • the mattress structures described above, with or without reference to figures, preferably relate to mattresses for double bedding beds for which the problem of weight becomes crucial when handling the mattresses, in particular by a single person.
  • the mattresses are complementary in terms of properties / comfort characteristics
  • the fact of having two mattresses (at least) of similar thicknesses (to 20%) and not a single very bulky and heavy mattress (such a mattress could weigh from 40 kg to almost 70 kg) greatly facilitates handling operations, especially in the hotel industry.
  • each of the mattresses composing the mattress structure for double coating has dimensions (width x length) that range from 140 cm x 190 cm to 200 cm x 200 cm, each with a weight that ranges, for example, from 16 kg to 35 cm. kg.
  • the dimensions envisaged for a double bed can be for example also the following: 140 cm x 200 cm, 150 cm x 190 cm, 150 cm x 200 cm, 160 cm x 190 cm, 170 cm x 190 cm, 170 cm x 200 cm, 180 cm x 190 cm, 180 cm x 200 cm, 190 cm x 190 cm, 190 cm x 200 cm, 200 cm x 190 cm.
  • the mattresses composing the mattress structures described above do not comprise mechanical reinforcing or stiffening elements (non-cellular) such as slats, boards, plates or rigid panels inserted in the mattresses or in the covers which contain them, as we see in the prior art. Indeed, such elements are likely to weigh down the mattress, which goes against the purpose of the invention.
  • the bed base 112 provides the mechanical support of the upper mattress structure and is for example designed in a conventional manner (eg flexible slats or springs).
  • the bed frame is not subject to the same constraints.

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  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
EP13189142.6A 2012-10-17 2013-10-17 Matratzenstruktur mit verbessertem Komfort Withdrawn EP2721966A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1259911A FR2996743B1 (fr) 2012-10-17 2012-10-17 Structure de matelas a confort ameliore

Publications (1)

Publication Number Publication Date
EP2721966A1 true EP2721966A1 (de) 2014-04-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13189142.6A Withdrawn EP2721966A1 (de) 2012-10-17 2013-10-17 Matratzenstruktur mit verbessertem Komfort

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EP (1) EP2721966A1 (de)
FR (1) FR2996743B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110042A (en) * 1962-01-15 1963-11-12 Gen Tire & Rubber Co Mattress
US3308492A (en) * 1965-12-28 1967-03-14 Henry H Lovette Reclining or sleeping equipment
US3534417A (en) * 1968-07-08 1970-10-20 Truman C Boyles Reversible foam mattress having different degrees of firmness
GB2327875A (en) * 1997-08-07 1999-02-10 Hotung Investments Limited Mattress
WO2007002290A2 (en) * 2005-06-24 2007-01-04 Tempur World, Llc Reticulated material body support and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110042A (en) * 1962-01-15 1963-11-12 Gen Tire & Rubber Co Mattress
US3308492A (en) * 1965-12-28 1967-03-14 Henry H Lovette Reclining or sleeping equipment
US3534417A (en) * 1968-07-08 1970-10-20 Truman C Boyles Reversible foam mattress having different degrees of firmness
GB2327875A (en) * 1997-08-07 1999-02-10 Hotung Investments Limited Mattress
WO2007002290A2 (en) * 2005-06-24 2007-01-04 Tempur World, Llc Reticulated material body support and method

Also Published As

Publication number Publication date
FR2996743A1 (fr) 2014-04-18
FR2996743B1 (fr) 2015-01-23

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