EP0399931B1 - Fernbedienungsgerät für Saug- oder Lüftungssystem - Google Patents

Fernbedienungsgerät für Saug- oder Lüftungssystem Download PDF

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Publication number
EP0399931B1
EP0399931B1 EP90420252A EP90420252A EP0399931B1 EP 0399931 B1 EP0399931 B1 EP 0399931B1 EP 90420252 A EP90420252 A EP 90420252A EP 90420252 A EP90420252 A EP 90420252A EP 0399931 B1 EP0399931 B1 EP 0399931B1
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EP
European Patent Office
Prior art keywords
handle
vacuum
pipe
pressure wave
chamber
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
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EP90420252A
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English (en)
French (fr)
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EP0399931A1 (de
Inventor
Patrick Damizet
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D'etude Et De Recherche En Ventilation Et Aeraulique Serva Ste
Aldes Aeraulique SA
Original Assignee
D'etude Et De Recherche En Ventilation Et Aeraulique Serva Ste
Aldes Aeraulique SA
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Publication of EP0399931A1 publication Critical patent/EP0399931A1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/38—Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/32—Handles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves

Definitions

  • the invention relates to suction or ventilation installations comprising, a suction box, a motorized suction turbine pneumatically connected to the outlet port of the box and at least one duct, one end of which opens into the box.
  • a suction box a suction box
  • a motorized suction turbine pneumatically connected to the outlet port of the box
  • at least one duct one end of which opens into the box.
  • Such a structure is used in central vacuum systems, on movable vacuum cleaners, of the canister or canister type, in mechanical ventilation systems but also on certain so-called dry or smoke extraction columns.
  • centralized suction installations it is obvious that the invention applies to any installation comprising at least one duct, one of the ends of which is connected to a suction assembly or ventilation.
  • the suction assembly is arranged with its dust container in a technical room and the conduit opening into the box forms part of a network of conduits connecting the central unit to suction sockets arranged in the areas to be cleaned.
  • Each suction outlet is closed by a hinged cover and can receive the rear end of a hose, the front end of which is provided with a handle and is capable of receiving a rigid tubular extension or suction members.
  • the central unit is put into operation and stopped by micro-contacts placed on each outlet and by a low-voltage electrical network connecting each outlet to the central vacuum unit.
  • the introduction by the user of the rear end of the suction hose into one of the sockets triggers the power supply to the electric motor of the central vacuum, while the withdrawal of this end causes the interruption of this diet.
  • Document EP-A-0 156 011 relates to a device for controlling a canister vacuum cleaner, in particular by actuation from the holding handle of the dust suction hose.
  • This device comprises a small duct parallel to the dust suction hose used to convey a pneumatic pressure wave from the handle to the suction group, which causes the turbine to operate when it is stopped, or when it stops.
  • vacuum waves sent into the small duct from the handle allow the suction rate to be adjusted. Given its complexity, such a control device is not applicable to a central vacuum or ventilation installation.
  • the object of the present invention is to remedy these drawbacks by providing a remote control device, for starting and stopping, for a suction or ventilation installation, a device which, simplifying the fitting of the conduits and the flexible structure, simple, reliable, inexpensive and safe for the user.
  • the device according to the invention of the type comprising a box, a motorized suction turbine, pneumatically connected to the outlet orifice of the box, and at least one duct whose downstream end opens into the box, means connected to the upstream end of the duct capable of generating a temporary pneumatic pressure wave in the direction of its downstream end 6a, the latter being associated with means for detecting the pressure wave and reacting on the control unit supply to the electric motor of the suction turbine for putting the installation into operation, is characterized in that the upstream end of the duct is equipped, on the one hand, with means for temporarily producing a pneumatic over-compression constituting a pressure wave and, on the other hand, sealing means during the period of non-operation of the installation and at least during the period of production of the overcompression pne umatic, in that the temporary pneumatic pressure wave is conveyed by the suction pipe itself from its upstream end to its downstream end, this downstream end being equipped, on the one hand, with means for detecting the pressure wave and,
  • the supply of the electric motor to the turbine and the starting of the installation are effected by means of a pressure wave generated upstream of the casing and reaching it by the conduit or the network of conduits.
  • This pressure wave requires no other means than those necessary for the actual operation of the installation and, consequently, constitutes a control means having very little influence on the cost of the installation.
  • the device also comprises, for stopping the installation, on the one hand, means interrupting the suction flow in the duct and, on the other hand, arranged near the box, means detecting the absence of suction flow in this conduit and intervening, with time delay on the control in the direction of opening of the electrical circuit supplying the motor.
  • the means generating the pressure wave consist of a piston which, slidably mounted in the end of the body of the handle, between an anterior stop position and a posterior position work, is formed at the rear end of the front tubular end of the handle, while the detection means are constituted by a pressure switch electrically connected to the motor control circuit and pneumatically on the part of the suction duct leading to the suction box.
  • 2 denotes the casing of a central vacuum unit 1, 3 the electric motor the turbine 4 creating the vacuum in the casing 6a, the downstream end opening into the casing of a network of conduits 6 connected by their upstream ends 6b to the suction outlets distributed in the building and 7 a hose.
  • the front end of the latter is provided with a handle 8 with a front tubular end piece 9 for fixing the suction accessories, with or without extension tube.
  • Its rear end is provided with a nozzle 10 connectable to any one of the suction sockets 11.
  • 12 represents a shutter associated with each of the sockets 11 and capable of sealingly sealing this socket when the nozzle 10 hose 7 is not connected to said socket.
  • this installation is provided with a remote control device ensuring the starting or stopping of the central vacuum unit and reacting on the means controlling the supply of the electric motor 3.
  • the forms of execution shown with reference to FIGS. 1 to 11 all use, as control means for starting up a pneumatic pressure wave generated in the handle 8, and for stopping, a variation in the suction flow rate, all both captured near the central vacuum unit 1.
  • this pressure wave is produced by a piston 13 formed at the rear end of the end piece 9 slidably mounted in the handle body 14. More precisely, this piston is formed by a flap 15 articulated at 16 on the rear end of the end piece 9.
  • the pressure wave does not dilute in the box 2 and can be perfectly detected by a sensitive pressure switch 20, connected by a conduit 22 to the end 6a of the conduit 6.
  • This pressure switch is electrically connected to the control box 23 of the electric motor 3.
  • the pressure wave created at the handle is perceived at the terminal end of the network of conduits 6 and detected by the pressure switch 20 which controls, through the housing 23, the supply of the electric motor 3.
  • the turbine 4 creates, in the box 2, a depression which has the effect of raising the flap 18, as shown in phantom in Figure 1, but also the flap 15 disposed in the handle 8, which therefore allows the installation to operate normally.
  • the installation is shut down by detecting the absence of flow in the hose 7 and in the network of conduits 6 by means an embodiment of which is shown in FIG. 2.
  • the handle 8 is internally provided with an articulated flap or with a closing butterfly 24 which can occupy a position in which it completely releases the suction, and another position in which it completely closes the internal section of the handle 9.
  • This butterfly is controlled from the outside of the handle by a button, not shown. The closure of this butterfly cuts the suction flow and therefore leads to an increase in the vacuum in the box 2. As will be explained below, this increase in vacuum is detected by appropriate means which react on the control unit. 23 to interrupt the supply to the motor 3.
  • the means for detecting the depression in the box 2 are associated with a timer authorizing the opening of the electrical supply circuit of the motor 3 only after a certain time.
  • means detecting the increase in the vacuum in the box to stop the supply of the motor 3 makes it possible to initiate the stopping process by other means than those arranged in the handle 8.
  • C ' is thus that these means can be constituted by the flap 12 associated with each suction outlet 11, shutter which sealingly closes the suction outlet as soon as the rear end piece 10 of the hose is removed from this outlet.
  • the stoppage can also be caused by the voluntary obturation of any of the conduits or the flexible by obturation with the hand, but also by an excessive fouling of the filter 25 placed on the downstream end 6a of the network of conduits, as shown in Figures 1 and 5.
  • the piston 13 formed at the rear end of the end piece 9 slidably mounted in the tubular body 14 of the handle 8 is constituted by a plug 26 formed at the rear end of the nozzle and juxtaposed with an opening 27 produced in this nozzle.
  • the end piece 9 is locked in rotation relative to the body 14, for example by a finger 28 sliding in a groove 29 of the body and is provided with at least one screen 30 ensuring its locking in the stopped position by cooperating with elastic means.
  • these means consist of a ball 32 disposed with its spring 31 in a housing 34 of the body handle.
  • the blocking provided by the notching forces him to exert a greater force on the end piece 9.
  • the nozzle 9 is suddenly moved in the direction of the arrow 17 and thus allows the plug 26, constituting the piston, to expel the air in the tubular body 14 then, by the connector 14a, in the flexible pipe 7.
  • the opening 27 coincides with the outlet of the connector 14a in the body 14 and thus allows the connection of the end piece 9 with the suction flow rate coming from the hose 7.
  • FIG. 6 and 7 differs from that of Figures 3 and 4 in that the flap 15, articulated at 16 at the rear end of the nozzle 9, is secured to a substantially radial finger 15a, suitable for the end of stop travel and the end of start travel to come into contact with abutment faces, respectively 35 and 36 of body 14.
  • the finger 15a meets the stop 35 and forces the flap to pivot in the direction of obturation of the rear end of the end piece 9, while at the end of the start-up stroke, the stop 36 forces this finger to pivot, in the opposite direction, to bring the flap 15 to the open position, completely freeing the rear end of the nozzle 9, in anticipation of the arrival of the suction flow.
  • the handle 8 is composed of a front end 9a with an articulated flap 15, a rear body 14b connected to the hose 7 and a central portion 37 in the form of a bellows and made of less rigid material than those constituting these two other parts.
  • the displacement of the end piece 9a in the direction of the rear part 14b of the handle causes the bellows 37 to deform, and causes a pressure wave reacting on the control means 23, arranged in the control unit.
  • suction 1 As in the embodiment described with reference to FIG. 1, as soon as the hose is traversed by a suction flow, the flap 15 lifts itself by allowing this vacuum to pass through the nozzle 9a and allow the suction.
  • the handle 8 is monolithic, and has a front portion 14c, closed by an articulated flap 38, and a rear portion 14d. This communicates, on the one hand, with the hose 7, and on the other hand, near the part 14c, with the outlet orifice 39 of a turbine 40 with autonomous supply and with start-up control. by button 41 disposed on the handle.
  • the central unit is started up by controlling the rotation of the turbine 40, for a time sufficient to generate, in the part 14d of the handle, a pressure wave.
  • the central vacuum unit causes the flap 38 to be lifted which, in this particular case, closes the outlet port 39 of the turbine 40 to avoid fouling of the turbine by dust.
  • the turbine is replaced by a bulb, a bellows or other equivalent means which, under manual pressure, sends a pneumatic pressure wave into the handle.
  • the embodiment shown in Figure 10 differs from that shown in Figures 3 and 4 by the shape of the means ensuring the blocking of the piston 13 in the stopped position.
  • the plug 26 forming a piston 13 and formed at the end of the end piece 9 is shouldered at 42 to form a bearing face for a compression spring 43 interposed between it and the front end 14e of the handle body 14.
  • An eclipsable stop 44 constituted for example by an articulated lever, immobilizes the piston 26 in the stopped position, position in which, as shown in FIG. 10, it compresses the spring 43.
  • FIG. 5 shows an embodiment of the means arranged on the central unit for closing and opening the electrical supply circuit of the electric motor 3.
  • 51 and 52 designating the supply conductors by the sector , 53 and 54 the supply conductors of the electric motor 3, 55 and 56 the conductors of the control circuit.
  • the pressure switch 20 cooperates with a microswitch 57 connected to the circuit 55-56 and controlling the supply of a remote control switch 48 mounted on the supply circuit 53 of the motor 3.
  • On the circuit 56-55 is also connected a contact 59 actuable by a device 60 detecting the absence of flow in the network of conduits 6-5.
  • this device consists of a cylindrical body 61 in the shape of a bell, the bottom of which communicates through a calibrated orifice 62 with the inside of the box 2 of the central vacuum unit.
  • a drawer 63 is slidably mounted with sealing in the body 61. It has an internal axial bore 64 serving as a housing for a return spring 65 working in compression and interposed between it and the body 61.
  • this drawer is integral with a external shoulder with abutment face 66 capable of cooperating with the aforementioned contact 59.
  • the device is associated with time delay means.
  • these means consist of the orifice 62, the section of which is determined in order to create a pressure drop increasing the duration taking into account in the body 61 of the increase in depression in the tank 2.
  • the head of the drawer 63 is traversed by a channel 68 placing the interior of the cylindrical body 61 in communication with the exterior.
  • This channel is closed, at the outlet of the drawer, by a flap 69.
  • This arrangement makes it possible to use the drawer as a control member and for switching the central unit on and off. To start manually, simply push the drawer in the direction of arrow 67. Under the effect of this displacement, the air contained in the body 61 and which is compressed in this body due to the small cross-section of the orifice 62 can escape to the outside via the conduit 68 by lifting the valve 69.
  • an elastic return flap 70 is articulated on the central unit casing and cooperates with contact 71 of a relay arranged on a circuit not shown, comprising an electronic unit with time delay, and constituting a control unit.
  • the flap 70 is raised by the pressure of the outgoing air.
  • the shutter pivots while tending to close the outlet orifice, and releases the contact 71. This change of state of the contact causes, with time delay, the shutdown of the central vacuum unit 1.
  • FIG. 11 shows, in other embodiments, means for detecting the pressure wave and means for detecting the increase in depression.
  • the means detecting the pressure wave are constituted by a motion sensor 73 of magnetic or other type, arranged in the vicinity of the end of an articulated flap 18.
  • a motion sensor 73 of magnetic or other type arranged in the vicinity of the end of an articulated flap 18.
  • Such a flap with its sensor 73 can also be disposed on a conduit leaving in derivation from the downstream end 6a of the conduit 6.
  • the means for detecting the increase in vacuum in the box 2 are constituted by a depressostat 74 which is electrically connected to the motor control circuit 3.
  • This depressostat is pneumatically connected by a conduit 75 to the box 2 with interposition of on the one hand a throttle nozzle 76 and, on the other hand, an intermediate delay chamber 77.
  • the transmission of this growth is transmitted to the depressostat 74 with a delay which depends on the section of the nozzle 76 and on the air volume of the chamber 77 and which ensures the desired time delay. .
  • control device described above in the case of its application to a central vacuum system can also be applied, in one or the other or in two of its start and stop functions, to movable vacuum cleaners, canister type, canister, or other, to mechanical ventilation installations, and to smoke extraction installations.
  • the means generating the pressure wave and those interrupting the suction flow are not arranged in the handle of a suction hose, but in a tubular body connected or connectable to a socket disposed on a duct, or a network of ducts and, upstream of the suction box.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Ventilation (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Catching Or Destruction (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Manipulator (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Greenhouses (AREA)
  • Selective Calling Equipment (AREA)
  • Jet Pumps And Other Pumps (AREA)

Claims (21)

  1. Fernbedienungsgerät für Absaug- oder Belüftungsanlagen mit einer Kammer (2), einem, angetriebenen Absauggebläse (4), welches pneumatisch an die Ausgangsöffnung (2b) der Kammer angeschlossen ist, und wenigstens einer Rohrleitung (6), deren niederdruckseitiges Ende (6a) in die Kammer (2) mündet, Mittel (13-40), die mit dem in Strömungsrichtung gesehen stromaufwährts gelegenen Ende (6b) der Rohrleitung (6) verbunden und in der Lage sind, eine zeitweilige pneumatische Druckwelle in Richtung auf ihr niederdruckseitiges Ende (6a) hervorzurufen, wobei letzteres Ende mit Mitteln (20-22) zum Abtasten der besagten Druckwelle und zur Reaktion auf die Steuereinheit (23) der Versorgung des Elektromotors (3) des Absauggebläses (4) für den Betrieb der Einrichtung, versehen ist, dadurch gekennzeichnet, daß das in Strömungsrichtung gesehen stromaufwärts liegende Ende (6b) der Rohrleitung (6) auf der einen Seite mit Mitteln zum zeitweisen Herstellen eines pneumatischen Überdrucks, im wesentlichen einer Druckwelle und auf der anderen Seite mit Verschlußmitteln (15, 26, 38) für die Zeitintervalle, in denen die Anlage nicht in Betrieb ist oder wenigstens für das Zeitintervall, in denen der pneumatische Überdruck erzeugt wird, ausgestattet ist, und daß die zeitweilige pneumatische Druckwelle durch die Absaugrohrleitung (6) von selbst von ihrem in Strömungsrichtung gesehen stromaufwährts gelegenen Ende bis zu ihrem niederdruckseitigen Ende (6a) transportiert wird, wobei das besagte niederdruckseitige Ende (6a) auf der einen Seite mit Mitteln zum Abtasten der Druckwelle und auf der anderen Seite mit einer drehbar gelagerten Verschlußklappe (18) versehen ist, welche in der geschlossenen Position durch eine Feder (19) gehalten ist und in der Lage ist, aufzuklappen, um die Öffnung der Rohrleitung durch den Unterdruck der Absaugung freizugeben.
  2. Fernbedienungsgerät gemäß dem Anspruch 1, dadurch gekennzeichnet, daß es außerdem für die Außerbetriebnahme der Anlage auf der einen Seite Mittel (13-24), die den Durchsatz der Absaugung in der Rohrleitung (6) unterbrechen und, auf der anderen Seite in der Nähe der Kammer (2) angeordnete Mittel, die den fehlenden Durchsatz der Absaugung in der Rohrleitung erfassen und zeitverzögert die Steuereinheit (23) so ansteuern, daß der elektrische Versorgungsstromkreis des Motors (3) geöffnet wird, aufweist.
  3. Fernbedienungsgerät nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß im Falle seines Anbaus an eine Absauganlage, die eine unabhängige flexible Schlauchleitung (7) besitzt, dessen eines Ende mit der Rohrleitung (6) verbunden und dessen anderes Ende mit einem Griffstück (8) mit einem vorderen Ansatz zur Befestigung von Absaugorganen und Zubehör versehen ist, die für die Generierung der Unterdruckwelle vorgesehenen Mittel (13-14) im Griffstück angeordnet sind, eventuell zusammen mit den Mitteln zum Unterbrechen des Absaugluftdurchsatzes.
  4. Gerät nach Anspruch 3, dadurch gekennzeichnet, daß die für die Generierung der Druckwelle vorgesehenen Mittel aus einem Stempel (13) gebildet sind, der verschieblich angeordnet im Gehäuse (14) des Griffstückes (8) zwischen einer vorderen Stopposition und einer hinteren Arbeitsposition am hinteren Ende des vorderen rohrförmigen Ansatzes (9) angeordnet ist.
  5. Gerät nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, daß das hintere Ende des vorderen rohrförmigen Ansatzes (9) des Griffstückes (8) fest mit rotatorisch festgelegten Mitteln (28) verbunden ist, die mit dem Gehäuse (14) des Griffstückes zusammenwirken und mit einem Stöpsel (26) der den Stempel (13) bildet, wobei dieser einer radialen. Öffnung (27) benachbart ist, die in Arbeitsposition mit der Öffnung des flexiblen Schlauches (7) im Gehäuse (14) des Griffstückes (8) in Verbindung kommt.
  6. Gerät nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, daß das hintere Ende des rohrförmigen Ansatzes (9) des Griffstückes (8) durch eine Klappe (15) verschlossen ist, die im Punkt 16 gelenkig gelagert ist, einen Stempel (13) bildet und in der Lage ist, sich unter der Wirkung des Unterdruckes der Absaugung anzuheben.
  7. Gerät nach den Ansprüchen 3, 4 und 6, dadurch gekennzeichnet, daß die Klappe (15) durch einen im wesentlichen radialen Arm (15a) oberhalb seiner gelenkigen Lagerung (16) verlängert ist, so daß sie am Ende des Einschalt- und am Ende des Ausschaltweges mit Anschlagflächen (36-35) verlängert ist, so daß sie am Ende des Einschalt- und am Ende des Ausschaltweges mit Anschlagflächen (36-35) des Gehäuses (14) des Griffstückes in Kontakt kommen, die die jeweilige Mitnahme in die Öffnungs- und in die Verschlußposition bewirken.
  8. Gerät nach einem oder mehreren der Ansprüche 3-7, dadurch gekennzeichnet, daß das Gehäuse (14) des Griffstückes (8) mit Mitteln (32-34) versehen ist, die eine elastische Einstellung in der Position, in der der Ansatz in der Stopposition ist, mit einer Rastkerbe (30) des Ansatzes (9) bewirken.
  9. Gerät nach einem oder mehreren der Ansprüche 3-7, dadurch gekennzeichnet, daß zwischen dem hinteren Ende des röhrenförmigen Ansatzes (9) und dem vorderen Ende (14c) des Gehäuses (14) des Griffstückes eine Kompressionsfeder (43) angeordnet ist, während das Gehäuse des Griffstückes mit einem von außen bedienbaren Arretierhaken (44), der den Ansatz (9) mit zusammengedrückter Feder (43) in der Stopposition halten kann, versehen ist.
  10. Gerät nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, daß das Griffstück (8) aus einem Griffstückgehäuse (14b), aus einem vorderen rohrförmigen Ansatz (9a), dessen hinteres Ende mit einer drehbar angelenkten Klappe (15) versehen ist, die sich unter der Wirkung der Absaugung anheben kann, jedoch einen Stempel (13) bildet, umd aus einem Gebläse (37) zusammengesetzt ist, das das Gehäuse (14b) mit dem besagten Ansatz (9a) verbindet.
  11. Gerät nach Anspruch 3, dadurch gekennzeichnet, daß das Griffstück einstückig ist und einen vorderen durch eine drehbar angelenkte Klappe (38) verschließbaren vorderen Teilbereich beinhaltet, wobei sich die Klappe unter der Wirkung der Absaugung anheben kann, und einen hinteren Teilbereich (14d), in den die Austrittsöffnung (39) einer Turbine (40) mündet, die unabhängig angetrieben und durch einen Druckknopf (41) auf dem Griffstück betätigt wird, um eine Druckwelle zu generieren.
  12. Gerät nach einem oder mehreren der Ansprüche 1-11, dadurch gekennzeichnet, daß die zur Abtastung der Druckwelle vorgesehenen Mittel aus einem Pressostat (20) bestehen, der pneumatisch unter Zwischenschaltung eines Verbindungskanals (22) mit der Rohrleitung (6) und elektrisch mit dem Steuerkreis (55, 56) zur Versorgung des Motors (3) verbunden ist.
  13. Gerät nach einem oder mehreren der Ansprüche 1.-11, dadurch gekennzeichnet, daß die zur Abtastung der Druckwelle vorgesehenen Mittel aus einem Bewegungssensor (73) bestehen, der die Anlage der Verschlußklappe (18) am Ende der Rohrleitung (6) abtastend mit dem Steuerkreis (55, 56) der Versorgung des Motors (3) verbunden ist.
  14. Gerät nach den Ansprüchen 1-3, dadurch gekennzeichnet, daß die Mittel zur Unterbrechung des Absaugstromes aus einer drehbar angelenkten, im Griffstück (8) angeordneten und mit Mitteln zur Handbetätigung versehenen Klappe gebildet sind.
  15. Gerät nach den Ansprüchen 1-4, dadurch gekennzeichnet, daß die Mittel zur Unterbrechung des Absaugstromes durch den Stempel (13) gebildet sind, wenn er sich in der Stopposition befindet.
  16. Gerät nach den Ansprüchen 1 und 2 und nach einem der Ansprüche 3-15, dadurch gekennzeichnet, daß die Mittel zur Abtastung des fehlenden Durchsatzes in der Rohrleitung (6) auf das Ansteigen des Unterdruckes in der Kammer (2) reagieren.
  17. Gerät nach Anspruch 16, dadurch gekennzeichnet, daß die Mittel, die den fehlenden Durchsatz durch eine Veränderung des Unterdrucks in der Kammer feststellen, durch einen rohrförmigen Körper (61) gebildet sind, der außerhalb der Kammer (2) angeordnet, und durch einen Schieber (63), der mit seiner Rückholfeder (65) im vorbezeichneten Gehäuse angeordnet verschieblich und dicht schließend in diesem Gehäuse (61) montiert ist, besteht, wobei der Schieber (63) wenigstens eine Anschlagfläche (66) besitzt, die am Ende des Arbeitsweges und gegen die Feder (65) einen Kontakt (59) aktivieren kann, der im elektrischen Steuerkreis des Motors (3) angeordnet ist.
  18. Gerät nach Anspruch 17, dadurch gekennzeichnet, daß die Verbindung zwischen dem rohrförmigen Gehäuse (61) und der Kammer (2) durch eine kalibrierte Drosselbohrung (62) sichergestellt ist, die einen Druckverlust hervorruft, der den Ausgleich der Unterdrücke und die Bewegung des Schiebers (63) zeitlich verzögert.
  19. Gerät nach einem oder mehreren der Ansprüche 16-18, dadurch gekennzeichnet, daß der Schieber (63) das Inbetriebnahmeorgan der Anlage bildet und eine innere Rohrleitung (68) mit einem äußeren einseitig wirkenden Verschlußventil (69) besitzt, welches in der Lage ist, das Innere des Gehäuses (61) mit außen zu verbinden, während der Versorgungsstromkreis des Motors mit einem Fernunterbrecherschalter (59) ausgestattet ist, der elektrisch auf der einen Seite mit dem Kontakt (59), der mit dem Schieber (63) der auf die Änderung des Unterdrucks reagierenden Mittel zusammenarbeitet, und auf der anderen Seite mit einem Kontakt (57), der mit dem Pressostat (20), der die inganggesetzte Druckwelle abtastet, zusammenarbeitet, verbunden ist.
  20. Gerät nach Anspruch 16, dadurch gekennzeichnet, daß die Mittel, die den fehlenden Durchsatz der Absaugung mit Hilfe der Veränderung des Unterdruckes in der Kammer 2 abtasten, aus einem Depressostat (74) bestehen, der elektrisch mit dem Steuerkreis der Versorgung des Motors (3) des Gebläses (4) und pneumatisch mit einem zwischengeschalteten Verzögerungsraum (77) verbunden ist, welcher wiederum mit der Kammer (2) unter Zwischenschaltung eines Drosselansatzrohres (76) verbunden ist.
  21. Gerät nach den Ansprüchen 1 und 2 und einem oder mehreren der Ansprüche 3-15, dadurch gekennzeichnet, daß die Mittel, die den fehlenden Durchsatz in der Rohrleitung (6) abtasten, auf die Veränderung des Luftdruckes am Ausgang des Gebläses (4) reagieren und aus einer drehbar befestigten Klappe (70) bestehen, die in der die Austrittsbahn (2) verlassenden Luft angeordnet ist und die mit dem Kontakt (71) eines Verzögerungsrelais zusammenarbeitet, das im elektrischen Steuerkreis des Motors (3) angeordnet ist.
EP90420252A 1989-05-23 1990-05-23 Fernbedienungsgerät für Saug- oder Lüftungssystem Expired - Lifetime EP0399931B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8906974A FR2647510B1 (fr) 1989-05-23 1989-05-23 Dispositif de commande a distance pour installation d'aspiration centralisee
FR8906974 1989-05-23

Publications (2)

Publication Number Publication Date
EP0399931A1 EP0399931A1 (de) 1990-11-28
EP0399931B1 true EP0399931B1 (de) 1995-10-25

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Application Number Title Priority Date Filing Date
EP90420252A Expired - Lifetime EP0399931B1 (de) 1989-05-23 1990-05-23 Fernbedienungsgerät für Saug- oder Lüftungssystem

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US (1) US5191673A (de)
EP (1) EP0399931B1 (de)
AT (1) ATE129393T1 (de)
CA (1) CA2017311C (de)
DE (1) DE69023165T2 (de)
DK (1) DK0399931T3 (de)
ES (1) ES2080817T3 (de)
FI (1) FI93166C (de)
FR (1) FR2647510B1 (de)
HK (1) HK1007480A1 (de)

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FR2703897B1 (fr) * 1993-04-13 1995-08-25 Bousset Serge Dispositif de commande à distance pour centrale d'aspiration intégrée.
US5603740A (en) * 1995-03-27 1997-02-18 Roy; Michel Suction activated reciprocating system
US5606767A (en) * 1995-05-19 1997-03-04 Crlenjak; Jack Vacuum operated dust and debris removal and collection system
US5926908A (en) * 1995-06-07 1999-07-27 Lindsay Manufacturing, Inc. Acoustic communicator for central vacuum cleaners
FR2770986B1 (fr) * 1997-11-18 1999-12-31 Aldes Aeraulique Prise pour le raccordement d'un tuyau d'aspiration de poussieres a une installation d'aspiration centralisee
FR2775887B1 (fr) * 1998-03-13 2000-08-18 Delta Neu Procede de commande automatique d'une installation d'aspiration centralisee, en particulier d'une installation de nettoyage centralise par le vide, et installation permettant la mise en oeuvre de ce procede
US6345408B1 (en) 1998-07-28 2002-02-12 Sharp Kabushiki Kaisha Electric vacuum cleaner and nozzle unit therefor
WO2001024677A1 (en) * 1999-10-07 2001-04-12 Gary Drivstuen Retractable hose central vacuum cleaning system
US6218798B1 (en) * 1999-11-12 2001-04-17 White Consolidated Industries, Inc. Central vacuum interface for air exchanger
KR100444964B1 (ko) * 2002-06-29 2004-08-21 삼성전자주식회사 벽걸이형 전자렌지
US6856113B1 (en) 2004-05-12 2005-02-15 Cube Investments Limited Central vacuum cleaning system motor control circuit mounting post, mounting configuration, and mounting methods
US8516653B2 (en) 2004-09-17 2013-08-27 Cube Investments Limited Cleaner handle and cleaner handle housing sections
US7900315B2 (en) * 2005-10-07 2011-03-08 Cube Investments Limited Integrated central vacuum cleaner suction device and control
US8732895B2 (en) * 2005-10-07 2014-05-27 Cube Investments Limited Central vacuum cleaner multiple vacuum source control
US7690075B2 (en) 2005-10-07 2010-04-06 Cube Investments Limited Central vacuum cleaner control, unit and system with contaminant sensor
CA2562804C (en) * 2005-10-07 2014-12-09 Cube Investments Limited Vacuum cleaner cross-control
KR100829525B1 (ko) 2006-06-28 2008-05-16 주식회사 산요테크 자동 배변 처리장치
WO2010005722A2 (en) * 2008-06-16 2010-01-14 Northwestern University Methods and compositions for generating sporulation deficient bacteria
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CA2937155A1 (en) 2015-08-18 2017-02-18 Sage Products, Llc Pump apparatus and associated system and method
AT520780B1 (de) * 2017-12-18 2019-10-15 Erwin Schwoeller Ansteckmodul für Zentralstaubsaugeranlagen, Zentralstaubsaugeranlage und Verfahren zum Absaugen von Raumluft
IT202100001361A1 (it) * 2021-01-25 2022-07-25 Starvac Scs Onlus Gruppo e metodo di controllo per un impianto di aspirazione d’aria ed impianto di aspirazione d’aria comprendente tale gruppo di controllo
EP4226826A1 (de) 2022-02-09 2023-08-16 Hilti Aktiengesellschaft Sauggerät mit drosselventil und verfahren zur abreinigung eines filters in einem solchen sauggerät

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Also Published As

Publication number Publication date
FI902493A0 (fi) 1990-05-21
EP0399931A1 (de) 1990-11-28
CA2017311A1 (fr) 1990-11-23
FR2647510A1 (fr) 1990-11-30
CA2017311C (fr) 1994-05-10
FR2647510B1 (fr) 1994-04-01
HK1007480A1 (en) 1999-04-16
US5191673A (en) 1993-03-09
ES2080817T3 (es) 1996-02-16
DE69023165D1 (de) 1995-11-30
DK0399931T3 (da) 1996-02-26
DE69023165T2 (de) 1996-03-21
ATE129393T1 (de) 1995-11-15
FI93166B (fi) 1994-11-30
FI93166C (fi) 1995-03-10

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