EP0510523A1 - Matelas - Google Patents

Matelas Download PDF

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Publication number
EP0510523A1
EP0510523A1 EP92106595A EP92106595A EP0510523A1 EP 0510523 A1 EP0510523 A1 EP 0510523A1 EP 92106595 A EP92106595 A EP 92106595A EP 92106595 A EP92106595 A EP 92106595A EP 0510523 A1 EP0510523 A1 EP 0510523A1
Authority
EP
European Patent Office
Prior art keywords
layer
mattress
mattress according
grooves
lying
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
EP92106595A
Other languages
German (de)
English (en)
Other versions
EP0510523B1 (fr
Inventor
Christoph Baus
Bernhard G Resch
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.)
RMT REHAMED Technology GmbH
Original Assignee
RMT REHAMED Technology GmbH
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 RMT REHAMED Technology GmbH filed Critical RMT REHAMED Technology GmbH
Publication of EP0510523A1 publication Critical patent/EP0510523A1/fr
Application granted granted Critical
Publication of EP0510523B1 publication Critical patent/EP0510523B1/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
    • A47C27/142—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
    • A47C27/148—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 positioning mattress, in particular for hospital beds, consisting of foam with several layers of the same or different specific density and different compression hardness.
  • the spring properties are the same over the length and width of the bed surface in systems with slats and base frames and also the spring mattresses, so that different pressure loads occur despite the geometric adaptation to the body. If the external contact pressure is greater than the pressure of the blood circulation, there are circulatory disorders, which are relatively short in a healthy person during the sleep phase, since a continuous one during sleep Rearrangement of the body takes place. In a bed-ridden person who is disabled, for example in an intensive care unit or after an operation, there are body pressure points that can lead to a life-threatening condition.
  • the object of the invention is therefore to propose a mattress which, depending on the partial load on the parts of the body, has a progressive spring behavior which at the same time provides adequate ventilation and breathability over the entire lying surface.
  • the lying surface of the upper layer is divided by longitudinal and transverse grooves into cuboids, the size of which depends on the load on the body parts, and the lower surface of the first layer has a corrugated structure has, which extends into a corresponding wave structure of the upper surface of a lower layer and cooperates with this elastically.
  • the surface of the cuboids in the head, back and buttocks area of the lying surface is larger in proportion to the surface load by the corresponding body parts than in the other areas. This ensures that heavy body parts produce a depth of penetration into the foam which is not the same as the depth of penetration of the lighter body parts, but corresponds approximately to it. This measure allows all parts of the body to participate in the support, so that the pressure exerted by the lying surface on the body lying on it is distributed almost uniformly and pressure peaks are eliminated, so that blood flow to the periphery of the body remains largely undisturbed.
  • the surface of the cuboids decreases from the central area to the longitudinal edge area of the lying surface and is larger again in the outermost longitudinal edge area. This leaves a wider edge strip on the outer sides of the mattress, which serves to increase the stability of the seat.
  • the cross sections of the grooves are rectangular, and / or pear and / or teardrop-shaped according to the invention, so that different sized supports of a cuboid and thus different spring force effects are present. At the same time, horizontal air ducts of different sizes are created, which significantly promote the breathability of the mattress.
  • the cross-sectional shapes mentioned can be combined as required, for example in such a way that a rectangular groove is provided on the surface, the base of which has a dome or pear shape.
  • the lower layer of the mattress has a higher specific density and strength and thus a lower spring elasticity than its upper layer, so that a progressive increase in spring elasticity is achieved.
  • this is favored by a corrugated structure of the two layers, the lower surface of the first layer having a corrugated structure which extends into a corresponding corrugated structure of the upper surface of the lower layer and cooperates elastically with it.
  • the amplitudes of the waves of the lower layer are greater than the amplitudes of the waves of the upper layer and the wave crests are each wider than the respective opposite troughs, such that the waves form air channels and jam each other under load and produce a progressive spring action.
  • the corrugated structure of the upper layer can penetrate into the corrugated structure of the lower layer with increasing pressure, the corrugated system also developing an increasing counterforce and thus a progressive one Force development unfolds.
  • the two layers are not glued to one another, so that a movement is made possible between the layers, which is slowed down by the uneven waveforms.
  • the layers can also be glued at points. With this measure, however, the following must be observed.
  • a thermal treatment is carried out to disinfect the mattresses, which can reach up to 105 ° C.
  • a different behavior can occur between the adhesive and the foam, which must be avoided as far as possible by selecting the adhesive.
  • the solvent released can also have an adverse effect.
  • the foam of the mattress has open-pore cells in at least one layer, which ensures sufficient breathability in addition to the air channels.
  • the entire mattress is in an elastic network in such a way that all foam layers are fixed. This completely avoids the use of adhesive.
  • the net is so elastic that the surface tension of the mattress foam is not increased, but its surface friction is reduced to a minimum. This significantly improves the covering and removal of the mattress cover, since the foam surface exerts a high level of friction on the textile material.
  • the lying surface 1 of the foam layer 2 is traversed in the longitudinal and transverse directions with grooves or incisions 4 and 3, as a result of which cuboids 10 are formed.
  • the longitudinal and transverse grooves 4 and 3 have mutually equal and partly different distances, as will be explained in more detail with reference to FIG 3.
  • the shape of the grooves or the cuts contributes significantly to the resilient property of the cuboids 10 formed.
  • Pear-shaped or teardrop-shaped grooves or grooves with parallel side walls can be formed. Combinations of these types of training can also be produced, depending on which resilient sizes are desired.
  • the groove can be shaped as a rectangle with a base in the form of a spherical cap or pear.
  • the pear-shaped, dome-shaped and also drop-shaped incisions or grooves 7 and 8 form a cuboid with a narrow root or foot region 9, which brings about a correspondingly lower spring force.
  • any desired spring force variation can be produced in the required areas.
  • the pear or dome shape provides a correspondingly large air duct, which advantageously promotes ventilation and thus breathability.
  • the mattress consists of two parts or layers 2 and 11, which are connected in an unglued manner by means of a wavy structure.
  • the wave structure 12 of the upper layer which is located on the opposite side of the lying surface 1, engages in the wave structure 13, which is located on the upper surface of the lower layer 11.
  • the material of the lower layer 11 has a higher specific density and strength and thus a lower elasticity than the material of the upper layer.
  • the shaft structures 12 and 13 differ geometrically from one another in such a way that sufficient spring travel is still available when the upper layer is subjected to pressure. This is achieved in that the amplitudes A of the waves of the lower layer 11 are greater than the amplitudes B of the waves of the upper layer 2 and the wave crests C are wider than the width of the opposite wave troughs D, so that the waves air channels 14 and 15 are different Form size and jam each other under load. This creates a progressive spring action, that is, a steady increase in spring force with increasing load. Since the two layers are not glued together, there is a movement under pressure given.
  • the smaller air channels 15 close when pressure is applied, as a result of which the contact surfaces and thus the spring forces increase progressively. The same takes place when the load increases further until the channels 14 also close. In addition to this advantageous spring action, these air channels also contribute to ventilation and thus to increased breathability.
  • Figure 3 shows the mattress in plan view.
  • the spacing of the grooves or incisions 4, which extend in the longitudinal direction over the lying surface 1, is different in size from the grooves or incisions running parallel to it, depending on the different loads on the different body parts.
  • the spacing of the grooves 4 in the central area is approximately the same size over three cuboid areas and decreases towards the edge of the mattress, so that smaller cuboid areas are thereby formed.
  • the outer cuboid areas running around the mattress again have a larger cuboid area, which corresponds approximately to the size of the central areas of each transverse row. This measure increases the seat stability.
  • the spacing of the grooves or incisions 3 extending transversely to the lancing surface 1 is greater in the region of the heavy body parts, namely in the head 16 and buttocks region 17, so that larger cuboids 18 are formed, while in the shoulder and leg regions 19 and 20 of the lying surface 1, the distance between the transverse grooves 3 is smaller, and as a result smaller cuboids 19 are present.
  • the part of the lying surface 1 of the mattress intended for the lighter shoulder region 19 is thus softer than the lumbar spine and buttocks region 17.
  • the mattress is adapted to the different loads caused by the body parts lying on it, so that all the body parts lying on it also support and the specific surface load is thereby reduced.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Medicines Containing Plant Substances (AREA)
EP92106595A 1991-04-23 1992-04-16 Matelas Expired - Lifetime EP0510523B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9104934U DE9104934U1 (de) 1991-04-23 1991-04-23 Matratze
DE9104934U 1991-04-23

Publications (2)

Publication Number Publication Date
EP0510523A1 true EP0510523A1 (fr) 1992-10-28
EP0510523B1 EP0510523B1 (fr) 1996-06-19

Family

ID=6866569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92106595A Expired - Lifetime EP0510523B1 (fr) 1991-04-23 1992-04-16 Matelas

Country Status (6)

Country Link
EP (1) EP0510523B1 (fr)
AT (1) ATE139423T1 (fr)
DE (2) DE9104934U1 (fr)
DK (1) DK0510523T3 (fr)
FI (1) FI921773A7 (fr)
NO (1) NO921556L (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290959A (en) * 1994-07-07 1996-01-17 Brian Corcoran Ventilated mattress
GB2347346A (en) * 1999-03-03 2000-09-06 Robert John Dudley Welch Hinged mattress
MD3586C2 (ro) * 2006-12-22 2008-12-31 Василий АРАБАДЖИ Saltea ortopedică pentru pat
MD3951C2 (ro) * 2009-02-11 2010-03-31 Василий АРАБАДЖИ Saltea ortopedică pentru pat
EP2850976A1 (fr) * 2013-09-20 2015-03-25 diamona Hermann Koch GmbH & Co. KG Élément de rembourrage destiné à supporter un corps humain

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19919502C1 (de) * 1999-04-29 2000-06-21 Huelsta Werke Huels Kg Polsterelement aus Schaumstoff
DE102017103453A1 (de) * 2017-02-20 2018-08-23 Vanema D.O.O. Matratze
CN119770286B (zh) * 2025-03-12 2025-06-10 吉林省众驰医疗科技有限公司 一种医用多功能体位保持床

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062915A1 (fr) * 1981-04-10 1982-10-20 Metzeler Schaum Gmbh Matelas en matière moussée
EP0421272A1 (fr) * 1989-10-02 1991-04-10 Metzeler Schaum Gmbh Matelas

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0062915A1 (fr) * 1981-04-10 1982-10-20 Metzeler Schaum Gmbh Matelas en matière moussée
EP0421272A1 (fr) * 1989-10-02 1991-04-10 Metzeler Schaum Gmbh Matelas

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2290959A (en) * 1994-07-07 1996-01-17 Brian Corcoran Ventilated mattress
GB2347346A (en) * 1999-03-03 2000-09-06 Robert John Dudley Welch Hinged mattress
GB2347346B (en) * 1999-03-03 2003-04-02 Robert John Dudley Welch Hinged mattress
MD3586C2 (ro) * 2006-12-22 2008-12-31 Василий АРАБАДЖИ Saltea ortopedică pentru pat
MD3951C2 (ro) * 2009-02-11 2010-03-31 Василий АРАБАДЖИ Saltea ortopedică pentru pat
EP2850976A1 (fr) * 2013-09-20 2015-03-25 diamona Hermann Koch GmbH & Co. KG Élément de rembourrage destiné à supporter un corps humain

Also Published As

Publication number Publication date
NO921556L (no) 1992-10-26
ATE139423T1 (de) 1996-07-15
NO921556D0 (no) 1992-04-22
FI921773A7 (fi) 1992-10-24
FI921773A0 (fi) 1992-04-22
DK0510523T3 (da) 1996-08-26
EP0510523B1 (fr) 1996-06-19
DE59206594D1 (de) 1996-07-25
DE9104934U1 (de) 1991-11-14

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