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EP0721755B1 - Aufblasbare, teleskopische Zellen für Kissen und Matratzen - Google Patents

Aufblasbare, teleskopische Zellen für Kissen und Matratzen Download PDF

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Publication number
EP0721755B1
EP0721755B1 EP95430001A EP95430001A EP0721755B1 EP 0721755 B1 EP0721755 B1 EP 0721755B1 EP 95430001 A EP95430001 A EP 95430001A EP 95430001 A EP95430001 A EP 95430001A EP 0721755 B1 EP0721755 B1 EP 0721755B1
Authority
EP
European Patent Office
Prior art keywords
cells
cell
cushion
lateral surfaces
inflatable
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
EP95430001A
Other languages
English (en)
French (fr)
Other versions
EP0721755A1 (de
Inventor
Paul Benguigui
Albert Sebag
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.)
Askle Sarl
Original Assignee
Askle Sarl
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 Askle Sarl filed Critical Askle Sarl
Priority to ES95430001T priority Critical patent/ES2118519T3/es
Priority to AT95430001T priority patent/ATE167371T1/de
Priority to EP95430001A priority patent/EP0721755B1/de
Priority to DE69503029T priority patent/DE69503029T2/de
Priority to CA002151692A priority patent/CA2151692C/fr
Priority to US08/492,536 priority patent/US5533220A/en
Publication of EP0721755A1 publication Critical patent/EP0721755A1/de
Application granted granted Critical
Publication of EP0721755B1 publication Critical patent/EP0721755B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05707—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with integral, body-bearing projections or protuberances
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S5/00—Beds
    • Y10S5/944—Beds with upstanding firm massaging projections

Definitions

  • the present invention relates to new cells inflatable, called telescopic, cushions and mattresses.
  • Patent 4,698,864 of October 13, 1987 relating essentially to the possibilities of different heights of certain cells relative to each other, depending on the position of the seat; then U.S. Patent 5,052,068 of October 1, 1991 relating to a improvement equivalent to the previous one, with cells always symmetrical with eight sides forming four fins and four edges concaves in the middle of their four faces, but with shapes different; and finally the P.C.T. WO 92 / 07.492 published May 14 1992 and relating to a distribution of air or gas which may inflate said cells, through a manifold capable of distributing this air or gas in certain cells to allow pressures different, depending on the areas of the cushion or said mattress.
  • a solution to the problem posed is a telescopic cell inflatable of a cushion or mattress element, consisting of a sole providing a flat lower support surface and several said cells, lying perpendicularly and fixed to said sole, arranged parallel to each other in a matrix covering the surface of the element and made of flexible material forming a tight external skin containing an internal volume of gas in each cell, each communicating with at least the volume internal of an adjacent cell; which cells are shaped like mandrel with four external edges including the four lateral surfaces are in the recessed rest position, and when a load is applied on said element by pressing on the ends of cells which then crush vertically, said surfaces deform until come into contact and lean on those of adjacent cells.
  • two of the opposite side surfaces of each cell consist of three vertical sides forming in position rest, two concave edges, while the other two surfaces side of the same cell consist of two vertical sides making a single median concave edge, at least one of the surfaces lateral to three sides of each cell being arranged facing a two-sided lateral surface of an adjacent cell.
  • the dimensions of said cells have a ratio between their base and their height depending on the thickness of the cushion desired, between either 37 and 45% for an average height between 95 and 105 mm, or between 57 and 65% for a height between 60 and 70 mm, and a distance between their bases of at least 8 mm, with a cell density per m 2 between 350 and 450; the angle a formed by the only two vertical sections of the lateral surfaces of each cell which they constitute is 120 ° and moreover the vertical sections of all the lateral surfaces are articulated at their lower parts on inclined sections which articulate themselves on a cylindrical base.
  • At least one of said cells preferably located in a corner of this element, has a fixed inflation tip and opening into one of the external edges of said cell and located at a distance from the base of it, or in fact from the sole of the element or cushion, at least 8 mm.
  • a balancing channel located at the level of the sole, that which can be obtained by absence of bonding of the skin cells thereon at given locations of their junction; in the present invention, in order to obtain the most air displacement slow and progressive possible during movements of a person on said cushion or mattress, and thus avoid instability as in some current cushions, said channel, at least in the direction of a dimension of the cushion or said mattress is such that it does not connect to the maximum that three adjacent cells in a straight line, and that any part of this channel joining two cells located on two sides opposite with respect to said dimension of the element passes at least through 3n / 2 cells, n being the number of cells occupying this dimension cushion or mattress.
  • an element of cushion for example with a dimension of 400 x 450 mm, it can include 72 cells at most, arranged in matrices of 8 x 9 for example; the different skins of material, constituting the cells and the sole, are bonded together according to an equal breaking tensile force for the same sample section at least 40% of that of the only material constituting said skins, such as in particular thanks to the specific choice of said material, an example of which is given previously.
  • the result is new types of telescopic cells inflatable cushion and mattress elements, having a certain number of characteristics responding to the problem posed.
  • the asymmetrical shape and specific profile of the telescopic inflatable cells according to the invention allow these said cells to be more stable than in current cushions or mattresses, which ensures good stability of the load and therefore of the person who can lean on and move on it, while respecting the standards imposed in this area.
  • the ten-sided configuration of all the faces of the cells constituting six concave edges instead of four, in the cells known to date, provides better support by a sort of nesting of these with each other. available in staggered rows facing a two-sided side surface of a cell, a three-sided side surface of the adjacent cell: said surfaces are then better immobilized with respect to each other and ensure better stability of the cells than in current cushions; all the more so since the ratios of the dimensions of the cells and their density to m 2 are in different percentages, which represents, for the current cushions, cells that are much more vertically elongated, and thus causing a certain instability; in addition, the minimum space retained in the present invention between said cells, which is at least 8 mm and at best 10 mm, is possible thanks to the choice of dimensional ratios as indicated above, this minimum space then being sufficiently wide, allows on the one hand, good ventilation and cleaning, and a better possibility of manufacture by dipping and pouring the product in molds.
  • the choice of polychloroprene material above provides better resistance to quenching, during work and molding of said skin to produce said cells, which allows flexibility of the material, while for a lot of current cushions, the skin is quite stiff after the manufacturing; in the present invention, this flexibility is in particular obtained thanks to the minimum mineral load in the polychloroprene retained; moreover, this characteristic of flexibility and that obtained even when cold as already mentioned previously by a choice mixture of two types of elastomers, as well as resistance to breakage of the material, are retained even after aging by example for seven days at 70 ° C, with an elongation at break of more than 650%, a breaking strength greater than 15 MPa, then that under the same conditions, many other materials harden, which is annoying, on the one hand for the user and, on the other hand, during manufacture to bond the skin constituting said cells on the support sole.
  • Figure 1 is a perspective view of a cousin element according to the invention in a pre-inflated situation.
  • Figures 2 and 3 are side and sectional views of two adjacent cells, according to the invention, of a cushion element.
  • Figure 4 is a partial view of an element of the cushion of the Figure 1 in the rest and deflated position.
  • Figure 5 is a top view of the cushion portion of the figure 4.
  • Figures 2 and 3 are side and sectional views of this profile of two adjacent cells 2 of a cushion element, such as shown in Figure 1, but in a deflated situation, as in the Figures 4 and 5.
  • said cells 2 have therefore been represented. pre-inflated thanks to this inflation tip 7 located in the corner of the cell, itself located in the corner of the cushion element, but this toe could of course be located in the sole 3, like this exists in other cushions, although this embodiment is not not recommended according to the present invention; pre-inflation at one given pressure is, for normal use, determined in depending on the weight of the load which said element of cushion or mattress, in order to respect for example a height minimum of 3 cm as specified in French standards, when said cells are deformed to the maximum; internal pressure in these then compensate for the weight they have to bear.
  • said cells thanks to the arrangement and the specific form of their surfaces which come into contact have good stability; he is evident however that if the cells did't enough swollen and did not come into contact with each other, despite their specific arrangement according to the invention, this would cause deviations from their vertical axis, therefore instability and poor comfort, and the risk of creating bedsores.
  • the choice of these pressures depending on the weight of the load is determinable in a known manner, without the need to describe more in the present description.
  • the base B of cells 2 can be a square from 38 to 42 mm on a side, and their height for elements of 65 mm thick cushion, and for thicknesses approximately 100 mm.
  • said channel 8 as shown in FIG. 6, at least in the direction of the general dimensions of the cushion or of said mattress, is such that it connects at most only three adjacent cells 2 in a straight line; moreover any part of this channel 8 joining two cells 2 located on both sides opposite with respect to said dimension of element 1, pass to the minus by 3n / 2 cells, n being the number of cells occupying this dimension.
  • the gas permeability coefficients of the neoprene thus defined is at 25 ° C for hydrogen of 10.8 x 10 -8 cm 2 / second x atmosphere, for oxygen of 3 x 10 -8 cm 2 / second x atmosphere, for nitrogen 0.89 x 10 -8 cm 2 / second x atmosphere, and for carbon dioxide 19.4 cm 2 / second x atmosphere; and at 50 ° C, the same gases with the same units, allow to obtain respective permeability coefficients of 28.5, 10.1, 3.5, and 56.5 cm 2 / second x atmosphere.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Claims (10)

  1. Aufblasbare Teleskop-Zellen (2) für Kissen- und Matratzen-Elemente (1), die aus einer Sohlplatte (3), welche eine ebene untere Auflagefläche bildet, und mehreren solchen Zellen (2) bestehen, die senkrecht zur Sohlplatte länglich und an der Sohlplatte (3) befestigt sind, die zueinander parallel in einer Matriform angeordnet sind, welche die Oberfläche des Elements (1) bedeckt, und die aus einem elastischen Material hergestellt sind, das eine dichte Außenhaut (9) bildet, welche ein Innenvolumen (4) in jeder Zelle umgibt, das je mit mindestens dem Innenvolumen einer benachbarten Zelle in Verbindung steht, wobei die Zellen (2) die Form eines Dorns mit vier Außenkanten (14) haben, dessen vier Seitenflächen (5) in der Ruhestellung eingebuchtet sind, und wenn eine Last auf das Element (1) angelegt wird durch Druck auf das Ende (10) der Zellen (2), die dann senkrecht zusammengedrückt werden, verformen sich diese Seitenflächen, bis sie in Kontakt gelangen und auf die der benachbarten Zellen drücken, dadurch gekennzeichnet, daß zwei der entgegengesetzten Seitenflächen (51) jeder Zelle aus drei senkrechten Flächen (121) bestehen, die in der Ruhestellung zwei konkave Kanten (131) bilden, während die beiden anderen Seitenflächen (52) der gleichen Zelle aus zwei senkrechten Flächen (122) bestehen, die nur eine mittlere konkave Kante (132) bilden, wobei mindestens eine der Seitenflächen (51) mit drei Flächen (121) jeder Zelle gegenüber einer Seitenfläche (52) mit zwei Flächen (122) einer benachbarten Zelle angeordnet ist.
  2. Aufblasbare Zellen nach Anspruch 1, dadurch gekennzeichnet, daß ihre Abmessungen ein Verhältnis zwischen ihrer Basis (B) und ihrer Höhe (H), das für eine Höhe (B) von 95 bis 105 mm zwischen 37 und 45% liegt, und einen Abstand (d) zwischen ihren Basen von mindestens 8 mm aufweisen, mit einer Zellendichte pro Quadratmeter von zwischen 350 und 450.
  3. Aufblasbare Zellen nach Anspruch 1, dadurch gekennzeichnet, daß ihre Abmessungen ein Verhältnis zwischen ihrer Basis (B) und ihrer Höhe (H), das für eine Höhe (B) von 60 bis 70 mm zwischen 57 und 65% liegt, und einen Abstand (d) zwischen ihren Basen von mindestens 8 mm aufweisen, mit einer Zellendichte pro Quadratmeter von zwischen 350 und 450.
  4. Aufblasbare Zellen nach einem beliebigen der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das die Haut (9) der Zellen (2) bildende Material eine Dicke von 5/10 bis 7/10 Millimeter hat und aus Polychloropren-Latex hergestellt ist, das mindestens 25% Mineralstoffe enthält.
  5. Aufblasbare Zellen nach einem beliebigen der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß mindestens eine dieser Zellen ein Aufblas-Ansatzstück (7) aufweist, das an einer Außenkante (14) der Zelle (2) befestigt ist und dort mündet und das sich in einem Abstand (h) von mindestens 8 mm von der Basis der Zelle befindet.
  6. Aufblasbare Zellen nach einem beliebigen der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Winkel (α), der von den zwei senkrechten Flächen (122) der Seitenfläche (52) jeder Zelle gebildet wird, 120° beträgt.
  7. Aufblasbare Zellen nach einem beliebigen der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die senkrechten Flächen (121, 122) ihrer Seitenflächen (51, 52) in ihren unteren Bereichen an schräge Flächen (151, 152) anschließen, die selbst an eine zylindrische Base (16) anschließen.
  8. Kissen- und Matratzen-Elemente (1), die aus Zellen (2) gemäß einem beliebigen der Ansprüche 1 bis 7 bestehen und bei denen die Verbindung zwischen den Innenvolumen (4) der Zellen (2) von einem Ausgleichkanal (8) hergestellt wird, der sich in Höhe der Basisplatte (3) befindet, dadurch gekennzeichnet, daß der Kanal (8) zumindest in Richtung einer Abmessung des Kissens oder der Matratze so ausgebildet ist, daß er höchstens drei in gerader Linie benachbarte Zellen (2) verbindet und daß jeder Teil des Kanals (8), der zwei Zellen (2) verbindet, die sich in Bezug auf diese Abmessung des Elements (1) auf zwei entgegengesetzten Seiten befinden, durch mindestens 3n/2 Zellen verläuft, wobei n die Anzahl von Zellen ist, die diese Abmessung einnehmen.
  9. Kissen- oder Matratzen-Elemente (1), die aus Zellen (2) gemäß einem beliebigen der Ansprüche 1 bis 7 bestehen und Abmessungen von höchstens etwa 400 x 450 mm aufweisen, dadurch gekennzeichnet, daß das Element (1) 72 Zellen (2) aufweist, die in Matrizen von 8 x 9 angeordnet sind.
  10. Kissen- oder Matratzen-Elemente (1), die aus Zellen (2) gemäß einem beliebigen der Ansprüche 1 bis 7 bestehen, dadurch gekennzeichnet, daß die die Zellen (2) und die Sohlplatte (3) bildenden, verschiedenen Häute aneinandergeklebt sind entsprechend einer Bruchzugkkraft gleich mindestens 40% derjenigen nur des Materials, das diese Häute bildet.
EP95430001A 1995-01-13 1995-01-13 Aufblasbare, teleskopische Zellen für Kissen und Matratzen Expired - Lifetime EP0721755B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES95430001T ES2118519T3 (es) 1995-01-13 1995-01-13 Celulas hinchables llamadas telescopicas, de cojines y de colchones.
AT95430001T ATE167371T1 (de) 1995-01-13 1995-01-13 Aufblasbare, teleskopische zellen für kissen und matratzen
EP95430001A EP0721755B1 (de) 1995-01-13 1995-01-13 Aufblasbare, teleskopische Zellen für Kissen und Matratzen
DE69503029T DE69503029T2 (de) 1995-01-13 1995-01-13 Aufblasbare, teleskopische Zellen für Kissen und Matratzen
CA002151692A CA2151692C (fr) 1995-01-13 1995-06-13 Cellules gonflables, dites telescopiques, de coussins et de matelas
US08/492,536 US5533220A (en) 1995-01-13 1995-06-20 Inflatable, "telescopic" cells for cushions and mattresses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95430001A EP0721755B1 (de) 1995-01-13 1995-01-13 Aufblasbare, teleskopische Zellen für Kissen und Matratzen

Publications (2)

Publication Number Publication Date
EP0721755A1 EP0721755A1 (de) 1996-07-17
EP0721755B1 true EP0721755B1 (de) 1998-06-17

Family

ID=8221581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95430001A Expired - Lifetime EP0721755B1 (de) 1995-01-13 1995-01-13 Aufblasbare, teleskopische Zellen für Kissen und Matratzen

Country Status (6)

Country Link
US (1) US5533220A (de)
EP (1) EP0721755B1 (de)
AT (1) ATE167371T1 (de)
CA (1) CA2151692C (de)
DE (1) DE69503029T2 (de)
ES (1) ES2118519T3 (de)

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Also Published As

Publication number Publication date
DE69503029D1 (de) 1998-07-23
CA2151692A1 (fr) 1996-07-14
EP0721755A1 (de) 1996-07-17
CA2151692C (fr) 2005-01-18
US5533220A (en) 1996-07-09
ES2118519T3 (es) 1998-09-16
ATE167371T1 (de) 1998-07-15
DE69503029T2 (de) 1999-01-14

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