EP0213332A2 - Control box for the air tubes of a supporting device - Google Patents

Control box for the air tubes of a supporting device Download PDF

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Publication number
EP0213332A2
EP0213332A2 EP86109430A EP86109430A EP0213332A2 EP 0213332 A2 EP0213332 A2 EP 0213332A2 EP 86109430 A EP86109430 A EP 86109430A EP 86109430 A EP86109430 A EP 86109430A EP 0213332 A2 EP0213332 A2 EP 0213332A2
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EP
European Patent Office
Prior art keywords
control device
pressure chamber
connecting line
switching valves
pump
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
EP86109430A
Other languages
German (de)
French (fr)
Other versions
EP0213332B1 (en
EP0213332A3 (en
Inventor
Hans-Jürgen Würfel
Ulrich Zobel
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.)
Huelsta Werke Huels GmbH and Co KG
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Huelsta Werke Huels GmbH and Co KG
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 Huelsta Werke Huels GmbH and Co KG filed Critical Huelsta Werke Huels GmbH and Co KG
Priority to AT86109430T priority Critical patent/ATE61932T1/en
Publication of EP0213332A2 publication Critical patent/EP0213332A2/en
Publication of EP0213332A3 publication Critical patent/EP0213332A3/en
Application granted granted Critical
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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
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/008—Use of remote controls
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/06—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using wooden springs, e.g. of slat type
    • A47C23/062—Slat supports
    • A47C23/065—Slat supports by fluid means
    • 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
    • A47C27/08—Fluid mattresses
    • A47C27/081—Fluid mattresses of pneumatic type
    • A47C27/082—Fluid mattresses of pneumatic type with non-manual inflation, e.g. with electric pumps
    • 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
    • A47C27/08—Fluid mattresses
    • A47C27/10—Fluid mattresses with two or more independently-fillable chambers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/12—Means, e.g. measuring means, for adapting chairs, beds or mattresses to the shape or weight of persons
    • A47C31/123—Means, e.g. measuring means, for adapting chairs, beds or mattresses to the shape or weight of persons for beds or mattresses

Definitions

  • the invention relates to a control device for the air tubes of a support device for the human body, such as a couch, mattress or seat, according to the preamble of the main claim.
  • At least two inflatable air tubes lie one above the other in a mattress-like molded body, which form individual, horizontally oriented groups, the groups being individually controllable and, moreover, the tubes lying one above the other being able to be controlled independently of one another.
  • Each of the fields thus formed is connected to a pump, regulating and control system.
  • a pump supplies pressure and vacuum for the individual fields and the control device has motor-driven distributor valves or solenoid valves which are switched by a camshaft. These valves cyclically connect the rows with the pressure sources and vacuum sources, so that each row is sequentially inflated, partially deflated by air escaping through the perforation of the air hoses and by Ver bond with the vacuum source is actively emptied.
  • Such an arrangement aims to ensure that the user of the couch is carried by the air tubes of the group which is inflated, while the parts of his body which lie above the deflated and therefore collapsed air tubes are not subjected to pressure from the mattress, so that the blood can circulate more freely in these parts of the body.
  • This known arrangement is therefore intended in particular exclusively for medical storage purposes.
  • DE-A-32 46 221 proposes a slatted frame for normal use, which is equipped with air hoses, each of which is equipped with valve means for inflating, corresponding control devices being provided, but which are not explained in more detail.
  • a backrest for a motor vehicle which consists of several individual air hoses.
  • a pump is provided and a pressure chamber is formed in a control unit, which is connected to the pump, connection lines being assigned to each individual air hose, connecting the respective air hose to the pressure chamber, and switching valves being assigned to each connection line.
  • the switching valves are located in a bypass line and open in a connecting line between the connecting hose and the pressure chamber.
  • the individual connection lines connect to the pressure chamber via a check valve.
  • the invention has for its object to improve the generic device in such a way that it is possible to fill each individual air hose or group of air hoses with air regardless of the degree of filling of other hoses or groups of hoses and pressure control between the switching valves only by actuating the switching valves bring connected hoses.
  • the inventor strikes a control unit, to which the compressed air pump is connected on the one hand and which has a central pressure chamber, to which the switching valves are connected, the individual connecting lines for the respective air hose in turn being connected to the individual switching valves.
  • a compressed air reservoir is created through the pressure chamber, with which the connecting line assigned to the air hose is connected via the switching valve.
  • a manually operated drain valve connects to the central pressure chamber.
  • only one air hose By actuating only one switching valve, only one air hose can be regulated with regard to its pressure strength independently of the other air hoses, and by operating several switching valves or all switching valves, all air hoses or all air hose groups can have a common pressure or the pressure between the hoses of this air hose group can equalize.
  • DE-U-71 14 046 also deals with a filling and emptying device for so-called pressure change mattresses.
  • an overpressure chamber that is connected to all hoses via lines, separate from it to provide a vacuum chamber that is connected to all hoses via lines and that a pump should connect to the overpressure chamber, while a suction pump connects to the vacuum chamber.
  • FIG. 1 designates a control device which, as the diagram in FIG. 1 shows, is of relatively small construction and is therefore handy, so that even a layperson can operate it lying in bed without difficulty.
  • Fig. 1 are those at the top of the Control unit 1 arranged switching valves 2 recognizable.
  • 3 shows a manually operable drain valve and 4 shows a connection for a connecting line 5 shown in FIG. 2, a check valve 6 being provided between the control unit 1 and the connecting line 5, as illustrated in FIG.
  • the connecting line 5 leads from the connection 4 to a preferably electrically operated pump 7, wherein a hand bellows 8 can be connected into the connecting line 5, by means of which a slight readjustment is possible without starting up the electric pump.
  • a pressure chamber 9 is provided, which forms an air reservoir and on the top of which the switching valves 2 open.
  • Each switching valve has a connecting line 10, these connecting lines leading to an air hose 11 or to an air hose group.
  • the switching valves 2 are designed as seat valves and have an actuating head 12 which carries a plunger 14 and is so pressurized via a compression spring 15 that a sealing cone 16 is pressed against a valve seat with the interposition of a corresponding seal , which is designed as a connecting line 17.
  • the individual connecting lines 10 open into this connecting line and this opening is shown at 18 in FIG. 3. It can be seen that when the actuating head 12 is depressed, the valve cone 16 is lifted off, so that the associated connecting line 10 is now connected to the pressure chamber 9 is possible. This results in a pressure equalization between the internal pressure in the air hose 11 and the internal pressure of the pressure chamber 9.
  • a regulation of the pressure is also possible in that when the switching valves 2 are closed, all the air hoses 11 have a relatively high pressure, then the pressure in the pressure chamber 9 is reduced by actuating the drain valve 3 and now a pressure equalization between them is opened by opening individual or several switching valves Switching valves associated with air hoses can be done.
  • a collecting line 19 is shown in the drawing, in which the individual connecting lines 10 are combined at least in the area of the control device, so as to have as little interference as possible when the control device is actuated.

Landscapes

  • Invalid Beds And Related Equipment (AREA)
  • Supports For Pipes And Cables (AREA)
  • Massaging Devices (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Buffer Packaging (AREA)

Abstract

Die Erfindung bezieht sich auf ein Steuergerät für eine mit einer Mehrzahl einzeln oder gemeinsam aufblasbarer Luftschläuche ausgerüstete Stützeinrichtung, mit einer jedem einzelnen Luftschlauch zugeordneten Anschlußleitung und einer Verbindungsleitung zur Pumpe, wobei an dem Steuerg- erät ein Ablaßventil vorgesehen ist und jeder Anschlußleitung bzw. Anschlußleitungsgruppe Schaltventile zugeordnet sind, mit denen eine gemeinsame, den Anschluß der Verbindungsleitung und das Ablaßventil aufweisende Druckkammer des Steuergerätes mit der Anschlußleitung verbindbar ist.

Figure imgaf001
The invention relates to a control apparatus for an individually with a plurality or together inflatable air hoses equipped support means, with a each air hose associated connecting line and a connecting line to the pump, at the control device a purge valve is provided and each lead or Anschlußleitungsgru p Pe switching valves are assigned, with which a common pressure chamber of the control device having the connection of the connecting line and the drain valve can be connected to the connecting line.
Figure imgaf001

Description

Die Erfindung bezieht sich auf ein Steuergerät für die Luftschläuche einer Stützeinrichtung für den menschlichen Körper, wie eine Liege, Matratze oder Sitz, gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a control device for the air tubes of a support device for the human body, such as a couch, mattress or seat, according to the preamble of the main claim.

Gemäß der DE-A-28 13 309 liegen in einem matratzenartigen Formkörper wenigstens zwei aufblasbare Luftschläuche übereinander, die einzelne, horizontal ausgerichtete Gruppen bilden, wobei die Gruppen einzeln steuerbar sind und außerdem die übereinanderliegenden Schläuche unabhängig voneinander gesteuert werden können. Jedes der so gebildeten Felder ist mit einem Pumpen-, Regel- und Steuersystem verbunden. Eine Pumpe liefert Druck und Vakuum für die einzelnen Felder und die Steuerungseinrichtung weist motorgetriebene Verteilerventile oder Magnetventile auf, die von einer Nockenwelle geschaltet werden. Diese Ventile verbinden zyklisch die Reihen mit den Druckquellen und Vakuumquellen, so daß jede Reihe aufeinanderfolgend aufgeblasen, durch herausstreichende Luft durch die Perforation der Luftschläuche teilweise entleert und durch Verbindung mit der Vakuumquelle aktiv entleert wird. Durch eine solche Anordnung wird angestrebt, daß der die Liege Benutzende von den Luftschläuchen der Gruppe getragen wird, die aufgeblasen ist, während die Teile seines Körpers, die über den entleerten und daher zusammengefallenen Luftschläuchen liegen, nicht von einem Druck der Matratze beaufschlagt werden, so daß das Blut in diesen Teilen des Körpers freier zirkulieren kann. Diese bekannte Anordnung ist daher insbesondere ausschließlich für medizinische Lagerungszwecke gedacht.According to DE-A-28 13 309, at least two inflatable air tubes lie one above the other in a mattress-like molded body, which form individual, horizontally oriented groups, the groups being individually controllable and, moreover, the tubes lying one above the other being able to be controlled independently of one another. Each of the fields thus formed is connected to a pump, regulating and control system. A pump supplies pressure and vacuum for the individual fields and the control device has motor-driven distributor valves or solenoid valves which are switched by a camshaft. These valves cyclically connect the rows with the pressure sources and vacuum sources, so that each row is sequentially inflated, partially deflated by air escaping through the perforation of the air hoses and by Ver bond with the vacuum source is actively emptied. Such an arrangement aims to ensure that the user of the couch is carried by the air tubes of the group which is inflated, while the parts of his body which lie above the deflated and therefore collapsed air tubes are not subjected to pressure from the mattress, so that the blood can circulate more freely in these parts of the body. This known arrangement is therefore intended in particular exclusively for medical storage purposes.

In der DE-A-32 46 221 wird für den Normalgebrauch ein Lattenrost vorgeschlagen, der mit Luftschläuchen ausgerüstet ist, die je mit Ventilmittel zum Aufblasen ausgerüstet sind, wobei entsprechende Steuereinrichtungen vorgesehen werden, die aber nicht näher erläutert sind.DE-A-32 46 221 proposes a slatted frame for normal use, which is equipped with air hoses, each of which is equipped with valve means for inflating, corresponding control devices being provided, but which are not explained in more detail.

Aus der gattungsbildenden US-A-41 90 286 ist eine Rückenlehne für ein Kraftfahrzeug bekannt, die aus mehreren einzelnen Luftschläuchen besteht. Es ist eine Pumpe vorgesehen und in einem Steuergerät ist eine Druckkammer ausgebildet, die mit der Pumpe in Verbindung steht, wobei jedem einzelnen Luftschlauch zugeordnete, den jeweiligen Luftschlauch mit der Druckkammer verbindende Anschlußleitungen vorgesehen sind und jeder Anschlußleitung Schaltventile zugeordnet sind. Die Schaltventile liegen in einer Bypassleitung und öffnen sich in einer Verbindungsleitung zwischen dem Anschlußschlauch und der Druckkammer. Die einzelnen Anschlußleitungen schließen über ein Rückschlagventil an der Druckkammer an.From the generic US-A-41 90 286 a backrest for a motor vehicle is known, which consists of several individual air hoses. A pump is provided and a pressure chamber is formed in a control unit, which is connected to the pump, connection lines being assigned to each individual air hose, connecting the respective air hose to the pressure chamber, and switching valves being assigned to each connection line. The switching valves are located in a bypass line and open in a connecting line between the connecting hose and the pressure chamber. The individual connection lines connect to the pressure chamber via a check valve.

Die bekannte, gattungsbildende Einrichtung hat den Nachteil, daß beim Füllen der Schläuche alle einzelnen Schläuche den gleichen Druck aufweisen, so daß nicht ein individuelles Füllen einzelner Schläuche unmittelbar von der Druckkammer aus möglich ist. Es müßte also bei einer individuellen Füllung so vorgegangen werden, daß alle Schläuche gefüllt werden und dann einzelnen Schläuche wieder durch Betätigen der Schaltventile hinsichtlich ihres Druckes reduziert werden. Auch ist eine Verbindung aller einzelnen Schläuche unter Zwischenschaltung der Druckkkammer nicht möglich, so daß also nicht alle Schläuche gleichmäßig unter Einschluß der Druckkammer auf einen gleichen Druck eingestellt werden können. Somit ist die bekannte Anordnung hinsichtlich einer individuellen Regulierung der einzelnen Schläuche aufwendig, d.h. erfordert relativ große Aufmerksamkeit durch den Benutzer.The well-known, generic institution has the Disadvantage that when filling the hoses all individual hoses have the same pressure, so that individual filling of individual hoses is not possible directly from the pressure chamber. It would therefore have to be done with an individual filling that all hoses are filled and then individual hoses are reduced again in terms of their pressure by actuating the switching valves. A connection of all individual hoses with the interposition of the pressure chamber is also not possible, so that not all hoses can be set to the same pressure evenly, including the pressure chamber. The known arrangement is therefore complex in terms of individual regulation of the individual tubes, ie requires relatively great attention from the user.

Der Erfindung liegt die Aufgabe zugrunde, die gattungsbildende Einrichtung dahingehend zu verbessern, daß es möglich ist, jeden einzelnen Luftschlauch oder jede einzelne Luftschlauchgruppe unabhängig vom Füllgrad anderer Schläuche oder Schlauchgruppen mit Luft zu füllen und allein durch Betätigen der Schaltventile eine Druckgleichstellung zwischen den an die Schaltventile angeschlossenen Schläuchen herbeizuführen.The invention has for its object to improve the generic device in such a way that it is possible to fill each individual air hose or group of air hoses with air regardless of the degree of filling of other hoses or groups of hoses and pressure control between the switching valves only by actuating the switching valves bring connected hoses.

Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst.This object on which the invention is based is achieved by the teaching of the main claim.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen erläutert.Advantageous embodiments of the invention are explained in the subclaims.

Mit anderen Worten ausgedrückt schlägt die Erfindung ein Steuergerät vor, an das einerseits die Druckluftpumpe anschließt und das eine zentrale Druckkammer aufweist, an die Schaltventile anschließen, wobei an die einzelnen Schaltventile wiederum die einzelnen Anschlußleitungen für den jeweiligen Luftschlauch anschließen. Durch die Druckkammer wird ein Druckluftreservoir geschaffen, mit dem über das Schaltventil die dem Luftschlauch zugeordnete Anschlußleitung in Verbindung steht. An die zentrale Druckkammer schließt ein handbetätigbares Ablaßventil an. Durch Betätigen von zwei Schaltventilen kann der Druck in den diesen Schaltventilen zugeordneten Luftschläuchen gemeinsam geregelt werden. Durch Betätigen nur eines Schaltventiles kann unabhängig von den anderen Luftschläuchen nur ein Luftschlauch hinsichtlich seiner Druckstärke geregelt werden und durch Betätigen mehrerer Schaltventile oder aller Schaltventile können alle Luftschläuche oder alle Luftschlauchgruppen einen gemeinsamen Druck aufweisen bzw. sich der Druck zwischen den Schläuchen dieser Luftschlauchgruppe ausgleichen.In other words, the inventor strikes a control unit, to which the compressed air pump is connected on the one hand and which has a central pressure chamber, to which the switching valves are connected, the individual connecting lines for the respective air hose in turn being connected to the individual switching valves. A compressed air reservoir is created through the pressure chamber, with which the connecting line assigned to the air hose is connected via the switching valve. A manually operated drain valve connects to the central pressure chamber. By actuating two switching valves, the pressure in the air hoses assigned to these switching valves can be regulated together. By actuating only one switching valve, only one air hose can be regulated with regard to its pressure strength independently of the other air hoses, and by operating several switching valves or all switching valves, all air hoses or all air hose groups can have a common pressure or the pressure between the hoses of this air hose group can equalize.

Das DE-U-71 14 046 beschäftigt sich ebenfalls mit einer Füll- und Entleerungsvorrichtung für sogenannte Druckwechselmatratzen. Hier wird vorgeschlagen, eine überdruckkammer vorzusehen, die mit allen Schläuchen über Leitungen verbunden ist, davon getrennt eine Unterdruckkammer vorzusehen, die mit allen Schläuchen über Leitungen verbunden ist und an die überdruckkammer soll eine Pumpe anschließen, während an die Unterdruckkammer eine Saugpumpe anschließt. Bei dieser bekannten Anordnung ist es zwar möglich, die einzelnen Schläuche individuell zu füllen, es ist auch möglich, die einzelnen Schläuche individuell hinsichtlich ihres vorhandenen Druckes zu entlasten, aber es ist nicht eine Schwimmstellung möglich, die einen Ausgleich zwischen allen Schläuchen herbeiführt.DE-U-71 14 046 also deals with a filling and emptying device for so-called pressure change mattresses. Here it is proposed to provide an overpressure chamber that is connected to all hoses via lines, separate from it to provide a vacuum chamber that is connected to all hoses via lines and that a pump should connect to the overpressure chamber, while a suction pump connects to the vacuum chamber. With this known arrangement it is possible to fill the individual tubes individually, it is also possible to fill the individual tubes to relieve individually with regard to their existing pressure, but it is not possible to have a floating position that balances all hoses.

Gravierend an der bekannten Einrichtung ist, daß sie aufgrund der vorhandenen zwei Kammern, nämlich der überdruckkammer und der Unterdruckkammer, größenmäßig sehr aufwendig baut, so daß eine solche Einrichtung nur mit Schwierigkeiten im Bettenbereich oder beispielsweise bei Kraftfahrsitzen einsetzbar ist. Nachteilig bei der bekannten Einrichtung ist weiterhin, daß das Entleeren der Schläuche über eine Saugpumpe erfolgen soll, d.h. also ein zusätzlicher maschineller Aufwand erforderlich ist.What is serious about the known device is that due to the existing two chambers, namely the pressure chamber and the vacuum chamber, it is very expensive to build, so that such a device can only be used with difficulty in the bed area or, for example, in motor vehicle seats. Another disadvantage of the known device is that the hoses are to be emptied via a suction pump, i.e. So additional mechanical effort is required.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnungen erläutert. Die Zeichnungen zeigen dabei in

  • Fig. 1 schaubildlich eine Ansicht des Steuergerätes, in
  • Fig. 2 einen Schnitt durch das Steuergerät mit einem Schaltbild für die einzelnen Leitungen, in
  • Fig. 3 in größerem Maßstab einen Schnitt durch ein Schaltventil und in
  • Fig. 4 eine Liege mit Steuergerät.
An embodiment of the invention is explained below with reference to the drawings. The drawings show in
  • Fig. 1 shows a view of the control unit, in
  • Fig. 2 shows a section through the control unit with a circuit diagram for the individual lines, in
  • Fig. 3 in a larger scale a section through a switching valve and in
  • Fig. 4 is a couch with control unit.

In den Zeichnungen ist mit 1 ein Steuergerät bezeichnet, das - wie die schaubildliche Darstellung in Fig. 1 zeigt - relativ kleinbauend ausgebildet ist und damit handlich ist, so daß es auch von einem Laien ohne Schwierigkeiten im Bett liegend betätigt werden kann. In Fig. 1 sind die an der Oberseite des Steuergerätes 1 angeordneten Schaltventile 2 erkennbar. Bei 3 ist ein handbetätigbares Ablaßventil dargestellt und bei 4 ein Anschluß für eine in Fig. 2 dargestellte Verbindungsleitung 5, wobei - wie dies Fig. 2 verdeutlicht - zwischen dem Steuergerät 1 und der Verbindungsleitung 5 ein Rückschlagventil 6 vorgesehen ist.In the drawings, 1 designates a control device which, as the diagram in FIG. 1 shows, is of relatively small construction and is therefore handy, so that even a layperson can operate it lying in bed without difficulty. In Fig. 1 are those at the top of the Control unit 1 arranged switching valves 2 recognizable. 3 shows a manually operable drain valve and 4 shows a connection for a connecting line 5 shown in FIG. 2, a check valve 6 being provided between the control unit 1 and the connecting line 5, as illustrated in FIG.

Die Verbindungsleitung 5 führt vom Anschluß 4 zu einer vorzugsweise elektrisch betriebenen Pumpe 7, wobei in die Verbindungsleitung 5 ein Handbalg 8 eingeschaltet sein kann, durch den eine leichte Nachregulierung ohne Inbetriebnahme der elektrischen Pumpe möglich ist. Im unteren Teil des Steuergerätes 1 ist eine Druckkammer 9 vorgesehen, die ein Luftreservoir bildet und an deren Oberseite die Schaltventile 2 münden.The connecting line 5 leads from the connection 4 to a preferably electrically operated pump 7, wherein a hand bellows 8 can be connected into the connecting line 5, by means of which a slight readjustment is possible without starting up the electric pump. In the lower part of the control device 1, a pressure chamber 9 is provided, which forms an air reservoir and on the top of which the switching valves 2 open.

Jedes Schaltventil weist eine Anschlußleitung 10 auf, wobei diese Anschlußleitungen zu einem Luftschlauch 11 oder zu einer Luftschlauchgruppe führen.Each switching valve has a connecting line 10, these connecting lines leading to an air hose 11 or to an air hose group.

Wie Fig. 3 zeigt, sind die Schaltventile 2 als Sitzventile ausgebildet und weisen einen Betätigungskopf 12 auf, der einen Stößel 14 trägt und über eine Druckfeder 15 so mit Druck beaufschlagt wird, daß ein Dichtkegel 16 unter Zwischenschaltung einer entsprechenden Dichtung gegen einen Ventilsitz gepreßt wird, der als Verbindungsleitung 17 ausgebildet ist. In diese Verbindungsleitung münden die einzelnen Anschlußleitungen 10 und in Fig. 3 ist diese Mündung bei 18 dargestellt. Es ist erkennbar, daß bei Niederdrücken des Betätigungskopfes 12 der Ventilkegel 16 abgehoben wird, so daß nunmehr eine Verbindung der zugeordneten Anschlußleitung 10 mit der Druckkammer 9 möglich ist. Hierdurch tritt ein Druckausgleich zwischen dem Innendruck im Luftschlauch 11 und dem Innendruck der Druckkammer 9 ein. Ist der Innendruck im Luftschlauch 11 höher als der in der Druckkammer 9, fließt Druckluft zurück und der Luftschlauch senkt sich etwas ab. Ist umgekehrt der Druck in der Druckkammer 9 höher als der im Luftschlauch 11, wird der Luftschlauch 11 entsprechend aufgeblasen. Werden zwei oder mehr Schaltventile gleichzeitig gedrückt, ist erkennbar, daß dadurch ein Druckausgleich zwischen den diesen Schaltventilen über die Anschlußleitungen 10 zugeordneten Luftschläuche erreichbar ist.As shown in Fig. 3, the switching valves 2 are designed as seat valves and have an actuating head 12 which carries a plunger 14 and is so pressurized via a compression spring 15 that a sealing cone 16 is pressed against a valve seat with the interposition of a corresponding seal , which is designed as a connecting line 17. The individual connecting lines 10 open into this connecting line and this opening is shown at 18 in FIG. 3. It can be seen that when the actuating head 12 is depressed, the valve cone 16 is lifted off, so that the associated connecting line 10 is now connected to the pressure chamber 9 is possible. This results in a pressure equalization between the internal pressure in the air hose 11 and the internal pressure of the pressure chamber 9. If the internal pressure in the air hose 11 is higher than that in the pressure chamber 9, compressed air flows back and the air hose lowers somewhat. Conversely, if the pressure in the pressure chamber 9 is higher than that in the air hose 11, the air hose 11 is inflated accordingly. If two or more switching valves are pressed simultaneously, it can be seen that a pressure equalization between the air hoses assigned to these switching valves can be achieved via the connecting lines 10.

Eine Regulierung des Druckes ist weiterhin dadurch möglich, daß bei geschlossenen Schaltventilen 2 alle Luftschläuche 11 einen relativ hohen Druck aufweisen, dann durch Betätigen des Ablaßventiles 3 der Druck in der Druckkammer 9 gesenkt wird und nunmehr durch öffnen einzelner oder mehrerer Schaltventile ein Druckausgleich zwischen den diesen Schaltventilen zugeordneten Luftschläuchen erfolgen kann.A regulation of the pressure is also possible in that when the switching valves 2 are closed, all the air hoses 11 have a relatively high pressure, then the pressure in the pressure chamber 9 is reduced by actuating the drain valve 3 and now a pressure equalization between them is opened by opening individual or several switching valves Switching valves associated with air hoses can be done.

In der Zeichnung ist in Fig. 1, 2 und 4 eine Sammelleitung 19 dargestellt, in der zumindest im Bereich des Steuergerätes die einzelnen Anschlußleitungen 10 zusammengefaßt sind, um damit möglichst wenig störend bei Betätigen des Steuergerätes zu wirken.1, 2 and 4, a collecting line 19 is shown in the drawing, in which the individual connecting lines 10 are combined at least in the area of the control device, so as to have as little interference as possible when the control device is actuated.

Claims (7)

1. Steuergerät (1) für eine mit einer Mehrzahl aufblasbarer Luftschläuche (11) ausgerüstete Stützeinrichtung mit einer Pumpe (7), einer im Steuergerät (1) angeordneten, mit der Pumpe (7) in Verbindung stehenden Druckkammer (9), jedem einzelnen Luftschlauch (11) zugeordnete, den jeweiligen Luftschlauch (11) mit der Druckkammer (9) verbindende Anschlußleitungen (10) und jeder Anschlußleitung (10) zugeordnete Schaltventile (2), dadurch gekennzeichnet, daß die Druckkammer (9) mit einem Ablaßventil (3) ausgerüstet ist und die Schaltventile (2) jeder Anschlußleitung (10) zwischen der Anschlußleitung (10) und der Druckkammer (9) vorgesehen sind. 1. Control device (1) for a support device equipped with a plurality of inflatable air hoses (11) with a pump (7), a pressure chamber (9) arranged in the control device (1) and communicating with the pump (7), each individual air hose (11) associated connecting lines (10) connecting the respective air hose (11) to the pressure chamber (9) and switching valves (2) assigned to each connecting line (10), characterized in that the pressure chamber (9) is equipped with a drain valve (3) and the switching valves (2) of each connecting line (10) are provided between the connecting line (10) and the pressure chamber (9). 2. Steuergerät nach Anspruch 1, dadurch gekennzeichnet, daß Luftschlauchgruppen mit einem Schaltventil (2) ausgerüstet sind.2. Control device according to claim 1, characterized in that air hose groups are equipped with a switching valve (2). 3. Steuergerät nach Anspruch 1 oder 2 mit federbelasteten, von Hand betätigbaren Sitzventilen als Schaltventile (2), dadurch gekennzeichnet, daß die Schaltventile (2) durch Niederdrücken eine Verbindung zwischen der Druckkammer (9) und der dem Schaltventil (2) zugeordneten Anschlußleitung (10) bzw. Anschlußleitungsgruppen ermöglichen.3. Control device according to claim 1 or 2 with spring-loaded, manually operated seat valves as switching valves (2), characterized in that the switching valves (2) by depressing a connection between the pressure chamber (9) and the connecting valve (2) associated with the connecting line ( 10) or connecting line groups. 4. Steuergerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Ablaßventil (3) von Hand betätigbar ist.4. Control device according to one of claims 1 to 3, characterized in that the drain valve (3) can be actuated by hand. 5. Steuergerät nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Anschluß der Pumpe für die Druckluft an die Druckkammer (9) unter Zwischenschaltung eines Rückschlagventiles (6) erfolgt.5. Control device according to one or more of the preceding claims, characterized in that the connection of the pump for the compressed air to the pressure chamber (9) with the interposition of a check valve (6). 6. Steuergerät nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die einzelnen Anschlußleitungen (10) wenigstens im Bereich des Steuergerätes (1) in einer Sammelleitung (19) zusammengefaßt sind.6. Control device according to one or more of the preceding claims, characterized in that the individual connecting lines (10) are combined at least in the area of the control device (1) in a collecting line (19). 7. Steuergerät nach einem oder mehreren der vorhergehenden Ansprüche mit einer maschinellen Pumpe, gekennzeichnet durch einen Handbalg (8), der zusätzlich zur elektrischen Pumpe vorgesehen ist.7. Control device according to one or more of the preceding claims with a mechanical pump, characterized by a hand bellows (8) which is provided in addition to the electric pump.
EP86109430A 1985-08-29 1986-07-10 Control box for the air tubes of a supporting device Expired - Lifetime EP0213332B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86109430T ATE61932T1 (en) 1985-08-29 1986-07-10 CONTROL UNIT FOR THE AIR HOSES OF A SUPPORT DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853530878 DE3530878A1 (en) 1985-08-29 1985-08-29 CONTROL UNIT FOR THE AIR TUBES OF A BED
DE3530878 1985-08-29

Publications (3)

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EP0213332A2 true EP0213332A2 (en) 1987-03-11
EP0213332A3 EP0213332A3 (en) 1988-11-17
EP0213332B1 EP0213332B1 (en) 1991-03-27

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ID=6279673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109430A Expired - Lifetime EP0213332B1 (en) 1985-08-29 1986-07-10 Control box for the air tubes of a supporting device

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Country Link
EP (1) EP0213332B1 (en)
AT (1) ATE61932T1 (en)
DE (2) DE3530878A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901336A1 (en) * 1988-01-18 1989-07-27 Finn Risung SYSTEM ISOLATED ADJUSTABLE PILLOW
EP0344062A1 (en) * 1988-05-25 1989-11-29 Vieux Chene Expansion Sarl Marking device for a slatted under-mattress, method and use of the method
FR2631797A1 (en) * 1988-05-25 1989-12-01 Pierre Elmalek Semi-automatic construction setting equipment - has signalling device to indicate roof beams are accurately sited to accommodate roof members
WO1994017697A1 (en) * 1993-02-02 1994-08-18 Laengle Melanie Lying surface for beds, sofas and the like with an air supply
WO1999051897A1 (en) * 1998-04-02 1999-10-14 Mangar International Limited Low pressure pneumatic control valve systems
WO2021245002A1 (en) * 2020-06-03 2021-12-09 Decathlon Tent comprising a bed base

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7114046U (en) * 1971-09-02 Mannesmann Handel Waermedienst Gmbh Filling and emptying device for pressure change mattresses
GB969367A (en) * 1962-03-05 1964-09-09 George Ingram Improvements in inflatable mattresses, pillows and cushions
GB1595417A (en) * 1977-03-29 1981-08-12 Welch H G Beds and mattresses
CA1053387A (en) * 1977-12-02 1979-04-24 John P. Bentley Inflatable seat cushion and body support assembly
US4597723A (en) * 1982-06-07 1986-07-01 Sember Joseph A Low pressure air supply and control system
DE3249598A1 (en) * 1982-10-27 1984-09-20 Hülsta Werke Hüls KG, 4424 Stadtlohn Couch
US4617690A (en) * 1985-01-07 1986-10-21 Whittaker Corporation Inflatable bed patient mattress

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901336A1 (en) * 1988-01-18 1989-07-27 Finn Risung SYSTEM ISOLATED ADJUSTABLE PILLOW
EP0344062A1 (en) * 1988-05-25 1989-11-29 Vieux Chene Expansion Sarl Marking device for a slatted under-mattress, method and use of the method
FR2631798A1 (en) * 1988-05-25 1989-12-01 Chene Expansion Sarl Vieux DEVICE FOR TAKING IMPRESSIONS FROM A LATTICE SUMMER, METHOD AND USE OF THE METHOD
FR2631797A1 (en) * 1988-05-25 1989-12-01 Pierre Elmalek Semi-automatic construction setting equipment - has signalling device to indicate roof beams are accurately sited to accommodate roof members
US5075912A (en) * 1988-05-25 1991-12-31 Vieux Chene Expansion Sarl Method of taking impressions for a bed
WO1994017697A1 (en) * 1993-02-02 1994-08-18 Laengle Melanie Lying surface for beds, sofas and the like with an air supply
WO1999051897A1 (en) * 1998-04-02 1999-10-14 Mangar International Limited Low pressure pneumatic control valve systems
WO2021245002A1 (en) * 2020-06-03 2021-12-09 Decathlon Tent comprising a bed base
FR3111151A1 (en) * 2020-06-03 2021-12-10 Decathlon Tent including a box spring

Also Published As

Publication number Publication date
ATE61932T1 (en) 1991-04-15
EP0213332B1 (en) 1991-03-27
DE3530878A1 (en) 1987-03-12
DE3678361D1 (en) 1991-05-02
DE3530878C2 (en) 1988-06-09
EP0213332A3 (en) 1988-11-17

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