EP0213332B1 - Steuergerät für die Luftschläuche einer Stützeinrichtung - Google Patents

Steuergerät für die Luftschläuche einer Stützeinrichtung Download PDF

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Publication number
EP0213332B1
EP0213332B1 EP86109430A EP86109430A EP0213332B1 EP 0213332 B1 EP0213332 B1 EP 0213332B1 EP 86109430 A EP86109430 A EP 86109430A EP 86109430 A EP86109430 A EP 86109430A EP 0213332 B1 EP0213332 B1 EP 0213332B1
Authority
EP
European Patent Office
Prior art keywords
pressure chamber
air
individual
control apparatus
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.)
Expired - Lifetime
Application number
EP86109430A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0213332A2 (de
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
Original Assignee
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/de
Publication of EP0213332A2 publication Critical patent/EP0213332A2/de
Publication of EP0213332A3 publication Critical patent/EP0213332A3/de
Application granted granted Critical
Publication of EP0213332B1 publication Critical patent/EP0213332B1/de
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
    • 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 ; Slatted bed bases
    • 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 bed according to the preamble of the main claim.
  • a control device for the air tubes of a bed according to the preamble of the main claim.
  • Such a device is known from US-A-4 190 286.
  • 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 distribution valves or solenoid valves which are switched by a camshaft. These valves cyclically connect the rows to the pressure sources and vacuum sources, so that each row is sequentially inflated, partially deflated by air leaking through the perforation of the air hoses and actively deflated by connection to the vacuum source.
  • DE 32 46 221 C2 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 filling and emptying device for pressure swing mattresses is known.
  • an overpressure chamber connected to a pump is provided, to which connecting lines to the air hoses connect.
  • a separate vacuum chamber is provided, which is operated via a suction pump and which in turn is equipped with the individual connecting lines to the air hoses. Two connecting lines lead to each air hose.
  • the air hoses are not interconnectable by this construction and the known arrangement is therefore difficult to use, since a separate valve must be actuated to inflate each air hose or to deflate each air hose.
  • 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 known, generic device 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 complex in terms of individual regulation of the individual hoses, i.e. requires relatively great user attention.
  • the invention has for its object the gat tion-improving device to the effect that it is possible to fill each individual air hose or each individual air hose group with air regardless of the degree of filling of other hoses or hose groups and to bring about pressure equalization by actuating the switching valves by equalizing the pressure between the hoses connected to the switching valves.
  • the invention proposes 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 connect, the individual connection lines for the respective air hose in turn connecting 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 one Have pressure or equalize the pressure between the hoses of this group of air hoses.
  • 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, through which a slight readjustment is possible without starting up the electric pump 7.
  • 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 2 has a connecting line 10, these connecting lines 10 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 17 and this opening is shown at 18 in FIG. 3. It can be seen that when the actuating button 12 is depressed, the sealing 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 the two or more switching valves 2 is opened air tubes 11 assigned to these switching valves 2 can take place.
  • a manifold 19 is shown in the drawing, in which the individual connecting lines 10 are combined at least in the area of the control device 1, so as to have as little interference as possible when the control device 1 is actuated.

Landscapes

  • Invalid Beds And Related Equipment (AREA)
  • Massaging Devices (AREA)
  • Supports For Pipes And Cables (AREA)
  • Buffer Packaging (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
EP86109430A 1985-08-29 1986-07-10 Steuergerät für die Luftschläuche einer Stützeinrichtung Expired - Lifetime EP0213332B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86109430T ATE61932T1 (de) 1985-08-29 1986-07-10 Steuergeraet fuer die luftschlaeuche einer stuetzeinrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3530878 1985-08-29
DE19853530878 DE3530878A1 (de) 1985-08-29 1985-08-29 Steuergeraet fuer die luftschlaeuche einer liege

Publications (3)

Publication Number Publication Date
EP0213332A2 EP0213332A2 (de) 1987-03-11
EP0213332A3 EP0213332A3 (en) 1988-11-17
EP0213332B1 true EP0213332B1 (de) 1991-03-27

Family

ID=6279673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109430A Expired - Lifetime EP0213332B1 (de) 1985-08-29 1986-07-10 Steuergerät für die Luftschläuche einer Stützeinrichtung

Country Status (3)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO174452C (no) * 1988-01-18 1994-05-11 Finn Risung Individuelt justerbart putesystem
FR2631798A1 (fr) * 1988-05-25 1989-12-01 Chene Expansion Sarl Vieux Dispositif pour prise d'empreintes d'un sommier a lattes, procede et utilisation du procede
FR2631797B1 (fr) * 1988-05-25 1991-11-22 Pierre Elmalek Dispositif de reglage de la rigidite de l'articulation d'un sommier a lattes, sommier a rigidite reglable
DE4302778A1 (de) * 1993-02-02 1994-08-04 Melanie Laengle Liegefläche für Betten, Sofas und dergleichen mit Luftversorgung
GB9806991D0 (en) * 1998-04-02 1998-06-03 Mangar International Ltd Low pressure pneumatic control valve systems
FR3111151B1 (fr) * 2020-06-03 2022-07-15 Decathlon Sa Tente comprenant un sommier

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7114046U (de) * 1971-09-02 Mannesmann Handel Waermedienst Gmbh Full und Entleerungsvorrichtung fur Druckwechselmatratzen
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
DE3246221C2 (de) * 1982-10-27 1984-08-16 Hülsta Werke Hüls KG, 4424 Stadtlohn Liege
US4617690A (en) * 1985-01-07 1986-10-21 Whittaker Corporation Inflatable bed patient mattress

Also Published As

Publication number Publication date
DE3530878C2 (enrdf_load_stackoverflow) 1988-06-09
DE3530878A1 (de) 1987-03-12
EP0213332A2 (de) 1987-03-11
EP0213332A3 (en) 1988-11-17
DE3678361D1 (de) 1991-05-02
ATE61932T1 (de) 1991-04-15

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