EP0632984B1 - Matelas ou similaire supportant le corps - Google Patents

Matelas ou similaire supportant le corps Download PDF

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Publication number
EP0632984B1
EP0632984B1 EP94201984A EP94201984A EP0632984B1 EP 0632984 B1 EP0632984 B1 EP 0632984B1 EP 94201984 A EP94201984 A EP 94201984A EP 94201984 A EP94201984 A EP 94201984A EP 0632984 B1 EP0632984 B1 EP 0632984B1
Authority
EP
European Patent Office
Prior art keywords
foam core
core assembly
contour
parts
supporting element
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.)
Expired - Lifetime
Application number
EP94201984A
Other languages
German (de)
English (en)
Other versions
EP0632984A1 (fr
Inventor
Robert Lievestro
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.)
Recticel BV
Original Assignee
Recticel BV
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Filing date
Publication date
Application filed by Recticel BV filed Critical Recticel BV
Publication of EP0632984A1 publication Critical patent/EP0632984A1/fr
Application granted granted Critical
Publication of EP0632984B1 publication Critical patent/EP0632984B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47C27/14—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
    • 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
    • A47C27/148—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays of different resilience

Definitions

  • the invention relates to a body-supporting element according to the preamble of claim 1.
  • Such a body-supporting element is known from DE-A-28 20 282.
  • the application will hereinafter only refer to a mattress. However, it is understood that the invention also relates to, for instance, seat cushions for couches and other body-supporting elements.
  • the known mattresses with cavities functioning as ventilating ducts are manufactured from two layers of full-foam material, with parts being cut away from the full-foam layers to form the cavities, after which, subsequently, the full-foam layers are placed on top of each other and interconnected by means of, for instance, glueing.
  • the parts cut away from the full-foam layers form waste, causing a considerable loss item in manufacturing.
  • DE-A-28 20 282 overcomes the disadvantages of the conventional mattresses for a large part. After displacing the foam core halves from the manufacturing position to the service position, the obtained body-supporting element needs to be cut at the longitudinal ends to obtain a rectangular block form.
  • the object of the invention is to provide a mattress of a like body-supporting element having a foam core assembly provided with at least one cavity, the intended mattress being producible at a price equal to that of a mattress having a full-foam core which is approximately 2-4 cm thinner and for which an equal quantity of foam material has been used.
  • the mattress or the body-supporting element is characterized by the features of claim 1.
  • a thus composed foam core assembly can be manufactured from a layer of full-foam material which is divided into two foam core halves by means of a separating operation, such as, for instance, cutting or sawing.
  • the contour surfaces are formed through the separating operation. Because the contour surfaces are completely complementary to each other, both foam core halves can be manufactured without any waste of foam material.
  • the foam core assembly can be manufactured from a relatively thin layer of full-foam material, the displacement of the foam core halves, which are obtained through the separating operation, resulting in a foam core assembly of a greater thickness than the original layer of full-foam material and having ventilating ducts or like cavities.
  • the foam core halves form a rectangular block both in the service state and in the manufacturing state, no waste of material occurs whatsoever when the foam core assembly is being manufactured.
  • the foam core halves need only be displaced relative to each other and hence need not be rotated or turned. As a result, the handling of the foam core halves is limited considerably, which yields a considerable saving of time and cost.
  • the mattress is characterized by the features of claim 2.
  • the separating operation for manufacturing the foam core halves of the foam core assembly may consist of a simple sawing operation by means of, for instance, a cutting wire, extending through the entire width of the mattress, which is moved according to the desired contour in the longitudinal direction through the full-foam layer serving as the starting product.
  • the mattress is characterized by the features of claim 3.
  • the distance through which the foam core halves should be displaced relative to each other to change from the manufacturing state into the service state corresponds to the length of tread of the stepped contour surface at the head and foot ends.
  • the increase in thickness of the foam core assembly when changing from the manufacturing state into the service state corresponds to the height of the riser of the stepped contour surface at the head and foot ends.
  • the mattress is characterized by the features of claim 4 and/or 5.
  • the hardness and/or stiffness of such a mattress can be varied by means of the material layer or material parts included into the central cavity at the location of the hip-supporting part.
  • the mattress may be slightly softer, i.e. at the location of the leg and shoulder-supporting parts, the mattress is more supple through the presence of ventilating ducts.
  • the mattress is slightly stiffer or harder again, which is particularly important in an adjustable bed.
  • the back may sink into the softer shoulder-supporting part such that a separate head support is not necessary, because at the head end, the mattress is harder.
  • the addition material layer or the material parts in the hip-supporting part provide sufficient support and strength in the sitting position.
  • the ventilating ducts at the location of the shoulder and leg-supporting parts have a hexagonal section.
  • this leads to a better stability of the top parts, abutting against each other, of the contour surfaces of the foam core halves.
  • the walls of the contours supporting the top parts have a rectangular shape as well, due to the complementary form of the two contour surfaces.
  • the walls In the case of ventilating ducts of a hexagonal shape, the walls have a section having the shape of an isisceles trapezium, the base being wide and the top being narrow. Such a wall is much more stable than a wall having a rectangular section and will not tilt, even when there is an uneven load distribution.
  • Another advantage of such a contour is that the length of the contour is shorter than that of a contour with which ventilating ducts of a rectangular section are formed. Due to the shorter length of the contour, the separating operation for forming the two foam core halves will take up less time, which results in lower manufacturing costs.
  • the contour surfaces at the location of at least the hip-supporting part and the leg and shoulder-supporting parts are symmetrical relative to the three orthogonal center planes of the foam core assembly in the service state.
  • All foam core assemblies 1 shown in the Figures comprise two foam core halves 2, 3.
  • a separating operation such as, for instance, cutting or sawing along a specific contour 4
  • the foam core halves 2, 3 are manufactured from a layer of full-foam material or a like resilient material.
  • the thus obtained foam core halves 2, 3 are displaced relative to each other and, if necessary with a local interposition of a layer of glue, placed on top of each other again, the contour surfaces 4 facing each other.
  • the contour 4 made by the separating operation extends through the entire width of the foam core assembly 1 to be manufactured.
  • the contour 4 may also extend lengthwise.
  • openings are provided at the longitudinal sides of the foam core assembly, while if the contours 4 extend lengthwise of the foam core assembly 1, openings are formed in the end sides 5, 6 of the foam core assembly 1.
  • the contour surfaces 4, at least a part thereof, are curved in two directions. It can thus be provided that in the service state both the end sides and the longitudinal sides of the foam core assembly 1 do not contain any openings or, conversely, do contain openings.
  • the manufacture of such a foam core assembly is considerably more complicated and expensive than the manufacture of a foam core assembly 1 whose contour surfaces 4 extend lengthwise or crosswise only.
  • contour surfaces 4 of the exemplary embodiments shown in the Figures all of which extend uniformly crosswise and vary lengthwise, as mentioned above, have a stepped configuration at the head and foot ends 1a and 1b respectively.
  • the contour surface 4 begins and ends in the main surfaces 7, 8 of the foam core assembly 1 with a riser 9, while in the service state, the contour surface 4 begins and ends in the end faces 5 and 6 of the foam core assembly 1 with a tread 10.
  • the two foam core halves 2, 3 are displaced lengthwise relative to each other through a distance corresponding to the tread 10 of the stepped contour parts.
  • the thickness of the foam core assembly 1 in the service state increases relative to the manufacturing state by a height corresponding to the riser 9 of the stepped contour parts 4a, 4b.
  • the foam core assembly 1 has a rectangular block shape in the manufacturing state as well as in the service state. Hence, the foam core assembly 1 can be manufactured without any loss of material.
  • top parts 12 of the contour surfaces 4 are provided with ventilating ducts 11 or like cavities. These top parts 12 may then be provided, before thefoam core halves 2, 3 are joined together into the service state, with a layer of glue. This offers the advantage that due to the interconnection created by the layer of glue, the walls 13, which are part of the countour surfaces 4 and carry the top parts 12, are less liable to tilt.
  • Figs 1-4 show variants of the differen contour surfaces 4 for the shoulder and leg-supporting parts 1c, 1d and the hip-supporting part 1e.
  • the embodiments shown in figures 1-3 do not form part of the invention because the contour surfaces do not comprise top parts 12.
  • the embodiment shown in Figs 1 and 2 has one large central cavity 11 extending through the shoulder and leg-supporting parts 1c, 1d as well as the hip-supporting part 1e. If necessary, it is possible to include in this cavity 11 a material layer or additional material parts 14 of the same or of a different composition and stiffness than the two foam core halves 2, 3, as is shown in Fig. 3.
  • a material layer or additional material parts 14 of the same or of a different composition and stiffness than the two foam core halves 2, 3, as is shown in Fig. 3.
  • the material layer 14 only extends under the hip-supporting part of 1e of the f oam core assembly 1.
  • An additional material layer 14 at the hip-supporting part 1e offers the advantage that the mattress, if it is used on an adjustable bed bottom, provides adequate support in a sitting position as well.
  • the material layer of material parts 14 may have any composition, such as for instance peat, straw, foam material, natural or synthetic rubbers, etc. It is understood that such additional material parts 14, to be included into the cavities 11, may also be included at other locations in the foam core assembly 1.
  • Figs 6 and 7 show an embodiment which is most preferred.
  • the contour surfaces 4e are crenellated at the hip-supporting part 1e, the crenellations having such dimensions relative to the contour surfaces 4 at the location of the shoulder and leg-supporting parts 1c, 1d, that an additional material layer 14 can be included herein for additional support, while due to the crenellated profile 4e in the service state of the foam core assembly 1, ventilating ducts 11 can still be formed at the location of the hip-supporting part 1e.
  • the contour parts are of such design that in the service state, hexagonal ventilating ducts 15 are formed.
  • the walls 13, forming the hexagonal ventilating ducts 15, have a section having the shape of an isisceles trapezium, the long side of each trapezium forming the base of each wall 13 and the short side of each trapezium forming the top of each wall.
  • the top parts 12 of the walls 13 of the two foam core halves 2, 3 are disposed opposite each other and are preferably interconnected by means of a layer of glue.
  • the walls 13 have a wide base, they are not liable to tilt even in the case of uneven load of the foam core assembly 1, as a result of which the foam core assembly 1 also provides a stable support at the shoulder and hip-supporting parts 1c, 1d.
  • the contour surface 4 with the trapezoidal walls 13 has the advantage that a shorter contour 4 is obtained than in the case of a crenellated contour configuration, which has a favorable effect on the processing time of the separating operation during manufacturing.
  • this embodiment which is preferred, compises a stepped contour configuration as well.
  • the invention is not limited to the exemplary embodiment described, but that various modifications are possible within the scope of the invention.
  • one or several outer surfaces of the foam core assembly may have been provided with additional layers, for instance to obtain rounded corners or to close off the ventilating openings in the longitudinal and/or end sides of the foam core assembly.
  • the foam core assembly will generally be covered with a mattress cover.

Landscapes

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

Claims (7)

  1. Elément de soutien de corps comprenant un ensemble de noyaux en mousse ayant une direction latérale et une direction longitudinale, une première extrémité de direction longitudinale et une deuxième extrémité longitudinale, et ayant au moins une cavité, l'ensemble de noyaux en mousse (1) comprenant au moins deux moitiés de noyau en mousse (2, 3) disposées l'une au-dessus de l'autre, chacune des surfaces principales des moitiés de noyau en mousse (2, 3), lesquelles sont en regard l'une de l'autre, étant munie d'une surface de contour (4) servant à former les cavités (11, 15), les surfaces de contour (4) des deux moitiés de noyau en mousse (2, 3) comprenant un certain nombre de parties de sommet (12) et étant complémentaires l'une de l'autre ; les surfaces de contour complémentaires (4) se joignant sensiblement complètement l'une l'autre dans une condition de fabrication ; les deux moitiés de noyau en mousse (2, 3) formant, dans la condition de fabrication, un bloc rectangulaire, les deux moitiés de noyau en mousse (2, 3) étant, dans la condition de fabrication, déplacées l'une par rapport à l'autre de telle sorte qu'au moins plusieurs des parties de sommet (12) formées par les surfaces de contour (4) viennent en butée les unes contre les autres, et caractérisé en ce que les deux moitiés de noyau en mousse (2, 3) forment, en condition de service, un bloc rectangulaire ayant une épaisseur supérieure à celle du bloc rectangulaire en condition de fabrication, de telle sorte qu'il n'y ait pas de déchets de matière lorsque l'ensemble de noyaux en mousse est fabriqué.
  2. Elément de soutien de corps selon la revendication 1, caractérisé en ce que le contour des surfaces de contour (4) s'étend seulement dans la direction latérale de l'ensemble de noyaux en mousse (1), les moitiés de noyau en mousse (2, 3) étant, en condition de service, déplacées l'une par rapport à l'autre dans la direction longitudinale, par rapport à la condition de fabrication.
  3. Elément de soutien de corps selon la revendication 1 ou 2, caractérisé en ce que les surfaces de contour (4), au niveau des première et deuxième extrémités longitudinales (1a, 1b), ont une configuration en étage, le premier étage (9) aménagé dans le contour (4), en condition de fabrication de l'ensemble de noyaux en mousse (1), commençant dans une surface principale de l'ensemble de noyaux en mousse (1), qui fait face à l'extérieur, au niveau de la première extrémité (1a) tout comme au niveau de la deuxième extrémité (1b).
  4. Elément de soutien de corps selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de soutien de corps est un matelas, et en ce que les surfaces de contour (4) sont conçues de telle sorte que, dans la condition de service, une cavité centrale (11) soit formée au niveau de la partie médiane de l'ensemble de noyaux en mousse (1), jouant le rôle d'une partie de soutien de hanches (1e), les surfaces de contour (4), à l'endroit des parties (1c, 1d) de l'ensemble de noyaux en mousse (1) qui jouent le rôle de parties de soutien d'épaules et de jambes, de chaque côté de la partie médiane (1e), étant conçues de telle sorte que les parties de sommet (12) des contours (4) des moitiés de noyau en mousse (2, 3) viennent en butée les unes contre les autres, les cavités (15), qui jouent le rôle de conduits de ventilation, étant formées entre les parties de sommet (12) butant les unes contre les autres, les surfaces de contour (4) des extrémités (1a, 1b) de l'ensemble de noyaux en mousse (1), qui joue le rôle de parties de tête et de pied, se joignant l'une l'autre en condition de service.
  5. Elément de soutien de corps selon la revendication 4, caractérisé en ce que, dans la cavité centrale, se trouvent une couche de matière ou des parties de matière (14) constituées d'une matière différente.
  6. Elément de soutien de corps selon la revendication 4 ou 5, caractérisé en ce que les cavités (15), à l'endroit des parties de soutien d'épaules et de jambes (1c, 1d), ont une section hexagonale.
  7. Elément de soutien de corps selon l'une quelconque des revendications 4 à 6, caractérisé en ce que les surfaces de contour (4) et les parties de soutien d'épaules et de jambes (1c, 1d) sont, en condition de service, symétriques par rapport aux trois plans centraux orthogonaux de l'ensemble de noyaux en mousse (1).
EP94201984A 1993-07-09 1994-07-08 Matelas ou similaire supportant le corps Expired - Lifetime EP0632984B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9301203A NL9301203A (nl) 1993-07-09 1993-07-09 Matras of dergelijk lichaamsondersteunend element.
NL9301203 1993-07-09

Publications (2)

Publication Number Publication Date
EP0632984A1 EP0632984A1 (fr) 1995-01-11
EP0632984B1 true EP0632984B1 (fr) 1998-10-21

Family

ID=19862636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94201984A Expired - Lifetime EP0632984B1 (fr) 1993-07-09 1994-07-08 Matelas ou similaire supportant le corps

Country Status (6)

Country Link
EP (1) EP0632984B1 (fr)
AT (1) ATE172364T1 (fr)
DE (1) DE69414038T2 (fr)
DK (1) DK0632984T3 (fr)
ES (1) ES2125397T3 (fr)
NL (1) NL9301203A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2146513B1 (es) * 1997-05-28 2001-02-16 Betere Fab Lucia Antonio Procedimiento de fabricacion de colchones a base de material espumable.
DE29814069U1 (de) * 1998-08-07 1998-11-19 Eisfeld Jens Gerrit Matratze, Sitz- oder Liegepolster o.dgl.
HUP0301958A3 (en) * 2000-05-08 2009-05-28 Rockwool Mineralwool Gmbh Deut Insulating device, method for the fitting of packing material to flanges of profile sheet, device for carryng out said method and method for production of an insulating device
DE20321407U1 (de) * 2003-07-28 2007-02-22 Silentnight Houben Gmbh Matratze
DE102005057910A1 (de) * 2005-12-02 2007-06-06 Rössle & Wanner GmbH Matratze
ES2313810B1 (es) * 2006-01-11 2009-12-17 Elena Mendez Gomez Colchon con ventilacion.
US11013341B2 (en) 2013-09-25 2021-05-25 Cascade Designs, Inc. Channelized inflatable bodies and methods for making the same
US11019935B2 (en) 2013-09-25 2021-06-01 Cascade Designs, Inc. Channelized inflatable bodies and methods for making the same
DE102017117559B4 (de) * 2017-08-02 2023-05-25 Emma Sleep Gmbh Matratzenkern sowie Matratzenkernlage
DE102017117556A1 (de) * 2017-08-02 2019-02-07 Bettzeit GmbH Matratzenkern sowie Matratzenkernlage
RU184071U1 (ru) * 2018-02-07 2018-10-15 Общество с ограниченной ответственностью "ЖИВЫЕ ДИВАНЫ" Вентилируемый мягкий элемент мебели для лежания и сидения

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323152A (en) * 1965-11-01 1967-06-06 Milbern Company Body supports
DE2820282A1 (de) * 1978-05-10 1979-11-15 Recticel Deutsch Kunststoffe Verfahren zum herstellen von polstern aus geschaeumtem, vorzugsweise luftdurchlaessigem werkstoff, z.b. aus geschaeumtem polyurethan, und nach diesem verfahren hergestelltes polster
DK146752C (da) * 1978-09-05 1984-06-12 Poly Saks Aps Madras eller hynde af skumplast

Also Published As

Publication number Publication date
NL9301203A (nl) 1995-02-01
ES2125397T3 (es) 1999-03-01
DE69414038T2 (de) 1999-06-24
EP0632984A1 (fr) 1995-01-11
DE69414038D1 (de) 1998-11-26
ATE172364T1 (de) 1998-11-15
DK0632984T3 (da) 1999-06-28

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