EP2084994A1 - Matelas comportant une couche constituée d'un réseau d'espaces creux et larges - Google Patents

Matelas comportant une couche constituée d'un réseau d'espaces creux et larges Download PDF

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Publication number
EP2084994A1
EP2084994A1 EP09000138A EP09000138A EP2084994A1 EP 2084994 A1 EP2084994 A1 EP 2084994A1 EP 09000138 A EP09000138 A EP 09000138A EP 09000138 A EP09000138 A EP 09000138A EP 2084994 A1 EP2084994 A1 EP 2084994A1
Authority
EP
European Patent Office
Prior art keywords
mattress
layer
network
hollow spaces
mattress according
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.)
Granted
Application number
EP09000138A
Other languages
German (de)
English (en)
Other versions
EP2084994B1 (fr
Inventor
Roland Oosterhout
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.)
Norma Boxmeer BV
Original Assignee
Norma Boxmeer BV
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Publication date
Application filed by Norma Boxmeer BV filed Critical Norma Boxmeer BV
Publication of EP2084994A1 publication Critical patent/EP2084994A1/fr
Application granted granted Critical
Publication of EP2084994B1 publication Critical patent/EP2084994B1/fr
Not-in-force 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
    • A47C27/20—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with springs moulded in, or situated in openings in foamed material
    • 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 present invention relates to a mattress comprising two lying surfaces and at least one layer extending between said lying surfaces, at least substantially parallel thereto, which consists of a network of hollow spaces comprising a plurality of through holes extending through said at least one layer, at least substantially perpendicular thereto, in which springs are accommodated.
  • the mattress may also comprise through holes in which no springs are accommodated, in other words, the through holes in the mattress do not necessarily all need to have a spring accommodated therein.
  • Such a mattress is generally known.
  • a core layer of, for example, foam material in the form of a network of interconnected cells, in which a matrix of 12 x 30 through holes is bored, is disposed centrally between the two lying surfaces and surrounded by further mattress layers.
  • the core layer is bounded on either side thereof by a layer which is suitable for distributing the pressure of the springs.
  • the foam material and the springs thus provide a combined spring action.
  • the matrix of through holes may comprise a different number of rows or columns, for example 8 to 15 rows and/or 25 to 35 columns.
  • a drawback of the known mattress is the fact that the network of interconnected cells impedes the movement of air and moisture in the mattress.
  • An adequate ventilation is important, however, in the case of mattresses for dissipating heat and moisture from the position where a person is lying on a mattress. It is known to provide the core layer with ventilation channels, which extend parallel to the lying surfaces of the mattress, so as to provide a better ventilation.
  • said at least one layer comprises a network of hollow spaces with relatively large cavities in an average cavity density of less than 500 cavities per cm 3 .
  • a foam material comprising larger cavities can more easily dissipate air and moisture (vapour) through the network of hollow spaces from the position where a person is sleeping than the foam material comprising a network of interconnected cells of the known mattress, which exhibits a cell density of more than 1000 cells per cm 3 .
  • a loss of resilience, or at least of resistance to compression, resulting from the use of the relatively large cavities may be compensated by the springs or by other layers in the mattress. The object of the present invention is thus accomplished.
  • the cavity density of said at least one layer of the network of hollow spaces comprising relatively large cavities is less than 200 cavities per cm 3 . It stands to reason that a cavity density of 200 cavities per cm 3 provides even better ventilation characteristics of the core layer than a cavity density of 200 to 500 cavities per cm 3 of a core layer comprising a network of hollow spaces.
  • the cavities are defined by ribs, whilst walls between said ribs are least substantially lacking.
  • the walls between the interconnected cells are lacking. Since the walls between the cavities are lacking, even further improved ventilation characteristics are obtained. After all, an air or vapour flow through the core layer is not impeded by walls between the ribs in that case, so that the air or vapour can flow more or less freely between the interconnected cavities.
  • said at least one layer comprises a reticulated network of hollow spaces.
  • the reticulated network of foam i.e. foam having a structure of "cells" whose cell walls have melted away, is excellently capable of providing the desired ventilation characteristics.
  • Reticulated foam is commercially available, for example of the Calipore® type from Draka.
  • said at least one layer may be disposed between two further layers of a network of hollow spaces with relatively small cells having an average cell density of more than 500 cells per cm 3 , preferably more than 1000 cells per cm 3 .
  • the heights of the various layers may be varied as desired; a relatively thick layer of relatively large cavities will have comparatively better ventilation characteristics than a layer that is less thick.
  • a core layer is provided which may appear to be similar to a known core layer but which is internally provided with a layer that ventilates very well, and the springs are directly activated when a pressure is exerted on the mattress, or at least on the core layer in the mattress, when a person lies on the mattress.
  • a layer having pressure distribution characteristics may be provided on either side of the core layer.
  • Suitable materials for such a layer are, for example, jute, foam exhibiting a relatively high compression resistance, felt and the like. Since said at least one layer comprising relatively large cavities will provide less resistance to compression, especially if no walls are present between the cavities, the springs may provide a relatively greater reactive force against compression than in the case of a known core layer. In such a case a proper pressure distribution between the core layer and the lying surfaces is desirable.
  • the network of hollow spaces for said at least one layer and/or said further layers preferably comprises latex foam (foam rubber), polyester foam and/or polyurethane foam. In the past such foam materials have proved to be very suitable for use in a mattress.
  • coil springs are accommodated in the through holes.
  • the use of coil springs in mattresses is known.
  • the coil springs may be barrel-shaped, cylindrical or Diabolo-shaped, for example.
  • the appended figure shows a mattress 1 according to the present invention.
  • the mattress 1 comprises a cover 2, which provides the lying surfaces of the mattress and which protects the interior of the mattress.
  • a ventilating strip 3 of textile which functions to ventilate the mattress.
  • the ventilating strip 3 thus provides an adequate flow-through connection for air and vapour between the interior of the mattress 1 and the environment.
  • Disposed within the cover 2 are a number of layers, which determine or at least influence the characteristics of the mattress to a significant extent.
  • the mattress Seen from the cover to the centre of the mattress 1, the mattress comprises foam plates 4, cover plates 5, outer corew layers 6 and an inner core layer 7. Through holes 8, in which springs 9 are accommodated, extend through the inner and outer core layers 7 and 8, respectively.
  • the foam plates 4 may be made of latex, polyurethane foam or polyester foam, for example.
  • the foam plates 4 have good resilience characteristics.
  • the cover plates 5 are provided between each foam plate 4 and the core of the mattress 1, which is formed by the core layers 6, 7 with the holes 8 and the springs 9.
  • the cover plates 5 act as pressure distributors for distributing the pressure exerted in the direction of the lying surfaces by the springs 9 in loaded condition of the mattress 1 so as to prevent a user from experiencing a non-uniform pressure of the mattress when lying on the mattress 1.
  • Disposed between the cover plates 5 is the core of the mattress 1, the middle core layer 7 of which is made of reticulated polyurethane foam.
  • the reticulated polyurethane foam is a network of ribs of hollow spaces, between which hollow spaces walls are substantially lacking. Because of this, the middle core layer 7 has a relatively high degree of elasticity, but certainly also good ventilation characteristics. In this embodiment, the middle core layer 7 is provided with an outer core layer 6 of polyurethane foam on both sides thereof. The outer core layer imparts firmness to the core of the mattress 1. Through holes 8, in which springs 9 are accommodated, extend through the inner and outer core layers 7 and 6, respectively. In this way a combined spring action is provided by the core of the mattress, consisting of the inner and outer core layers 7, 6 and the springs 9.
  • the holes 8 furthermore form ventilation channels, for example for dissipating heat and moisture (vapour) which are generated and which are absorbed by the mattress 1 when a user is lying on the mattress 1.
  • the holes 8 stimulate a vertical flow-through of air / vapour.
  • the vertical holes 8 are in communication inter alia with the inner core layer 7 of reticulated polyurethane, which thus provides an adequate ventilation in horizontal direction through the mattress. It will be understood that the mattress 1 according to the present invention provides an excellent ventilation in vertical direction from the position where a user is lying to the inner core layer 7 and subsequently through the inner core layer 7 and the ventilating strip 3 of textile.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
EP09000138A 2008-01-31 2009-01-08 Matelas comportant une couche constituée de la mousse réticulée avec d'espaces creux relativement larges Not-in-force EP2084994B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1034982A NL1034982C1 (nl) 2008-01-31 2008-01-31 Matras met laag van netwerk van grote holle ruimten.

Publications (2)

Publication Number Publication Date
EP2084994A1 true EP2084994A1 (fr) 2009-08-05
EP2084994B1 EP2084994B1 (fr) 2011-09-21

Family

ID=40668351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09000138A Not-in-force EP2084994B1 (fr) 2008-01-31 2009-01-08 Matelas comportant une couche constituée de la mousse réticulée avec d'espaces creux relativement larges

Country Status (3)

Country Link
EP (1) EP2084994B1 (fr)
AT (1) ATE524999T1 (fr)
NL (1) NL1034982C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2548068A (en) * 2015-10-06 2017-09-13 Hypnos Ltd A mattress
WO2017178998A1 (fr) * 2016-04-14 2017-10-19 New Zealand Comfort Group Limited Matelas et procédé de fabrication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1483433A (en) * 1974-09-05 1977-08-17 Ruf Bett Int Kg Mattresses and the like
US20070197675A1 (en) * 2004-02-17 2007-08-23 Bridgestone Corporation Low-resilience highly air-permeable polyurethane foam and use thereof
WO2008009712A1 (fr) 2006-07-18 2008-01-24 Lancastria Limited Matelas
AU2008200388A1 (en) * 2007-01-25 2008-08-14 Australian Comfort Group Pty. Ltd. Mattress

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1552214A (fr) * 1967-11-23 1969-01-03
GB1194360A (en) * 1967-12-15 1970-06-10 Price Brothers & Company Ltd Improvements relating to Mattresses, Cushions or the Like.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1483433A (en) * 1974-09-05 1977-08-17 Ruf Bett Int Kg Mattresses and the like
US20070197675A1 (en) * 2004-02-17 2007-08-23 Bridgestone Corporation Low-resilience highly air-permeable polyurethane foam and use thereof
WO2008009712A1 (fr) 2006-07-18 2008-01-24 Lancastria Limited Matelas
AU2008200388A1 (en) * 2007-01-25 2008-08-14 Australian Comfort Group Pty. Ltd. Mattress

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2548068A (en) * 2015-10-06 2017-09-13 Hypnos Ltd A mattress
GB2548068B (en) * 2015-10-06 2018-02-07 Hypnos Ltd A mattress
WO2017178998A1 (fr) * 2016-04-14 2017-10-19 New Zealand Comfort Group Limited Matelas et procédé de fabrication

Also Published As

Publication number Publication date
EP2084994B1 (fr) 2011-09-21
NL1034982C1 (nl) 2009-08-03
ATE524999T1 (de) 2011-10-15

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