EP0788760B1 - Switch-on device for a vacuum cleaner - Google Patents

Switch-on device for a vacuum cleaner Download PDF

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Publication number
EP0788760B1
EP0788760B1 EP96112776A EP96112776A EP0788760B1 EP 0788760 B1 EP0788760 B1 EP 0788760B1 EP 96112776 A EP96112776 A EP 96112776A EP 96112776 A EP96112776 A EP 96112776A EP 0788760 B1 EP0788760 B1 EP 0788760B1
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EP
European Patent Office
Prior art keywords
vacuum cleaner
appliance
switch
consumer
consumer terminal
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
EP96112776A
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German (de)
French (fr)
Other versions
EP0788760A3 (en
EP0788760A2 (en
Inventor
Peter Langer
Jürgen Weiss
Rainer Engelhardt
Gerhard Vorholzer
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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Publication of EP0788760A2 publication Critical patent/EP0788760A2/en
Publication of EP0788760A3 publication Critical patent/EP0788760A3/en
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Publication of EP0788760B1 publication Critical patent/EP0788760B1/en
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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
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/247—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow the switch being of the reed switch type

Definitions

  • the invention relates to a Vacuum cleaner that has an electrical consumer connection and an electrical one assigned to this consumer connection Has circuit that turns on the vacuum cleaner, if a connected to the consumer connection Consumer is switched on.
  • Such a vacuum cleaner is for example in the EP 0 455 226 A2.
  • Vacuum cleaners are becoming common used to extract dusts by tools arise when editing objects, for example when drilling or grinding. Usually acts these are electrically powered tools. The Extraction by the vacuum cleaner is only necessary as long as these tools are in use, that means the vacuum cleaner and the electrical tool are used closely coordinated. For this Basically, it is known to directly connect the tool to one Connect the consumer connection of the vacuum cleaner and to provide a switch-on device in the vacuum cleaner itself, which determines that the consumer connection a current flows, that is to this consumer connection connected tool is operated.
  • US-A-4 238 689 describes one vacuum cleaner with a fixed switch, which is operated by hand.
  • This switch has three Positions, in one position he connects an additional device the operating voltage of the vacuum cleaner, in a second position he breaks this connection and in a third position it connects the voltage source of the vacuum cleaner with one simulated consumer.
  • This task is with a vacuum cleaner the beginning described type solved according to the invention, that one as a unit trained switch-on device on the vacuum cleaner releasably attached and with a cable and one to the consumer connection adapted connector is provided, and that to operate one not connected to the consumer connected device in the one connected to the consumer connection Switching device one of which is not connected to the Device connected to the consumer connection switching element actuable by its operation is provided, which during operation this device the consumer connection with an electrically simulated consumer connects.
  • the device operated in this way can of course be very different, in particular this arrangement is favorable when operating tools of all kinds.
  • Their drive can be varied external energy sources, it must be is by no means an electric drive, but other drives are possible, for example pneumatic or hydraulic drives. It is only essential that the switching on of the Device in any way the switching element in the starting device operated. This can all affect the professional common ways happen, for example by simple mechanical connections with the device or by measuring physical parameters on the device, the change with the operation of the same.
  • the switch-on device a locking device for the line of the pneumatic Medium includes by an electrical monitoring circuit of the vacuum cleaner via the consumer connection and its connection to the switch-on device can be actuated. It is then possible to use the device also switch off from the vacuum cleaner by the Flow of the pneumatic medium is interrupted. This can be beneficial, for example, if Vacuum cleaner a monitoring circuit for effectiveness of the suction flow is present. If this Suction flow, for example, when the vacuum cleaner filter is dirty this monitoring circuit speaks too weak and delivers via the consumer connection a shutdown signal to the locking device in Switch-on device so that the device is switched off for safety reasons is because the vacuum of the vacuum cleaner is no longer effective enough.
  • the switching element is a reed contact and that this is actuated by a magnet that movable depending on the operation or non-operation of the device is. This shifting movement could, for example done mechanically by a switch, which also turns on the device.
  • a supply circuit for the electrical Switching elements of the switching device connected is whose electrical consumption is so low is that the electrical circuit of the vacuum cleaner not to be switched on by this consumption alone of the vacuum cleaner is activated.
  • the line connection of the switching device to the consumer connection is therefore not used in this version only the simulated consumer to the consumer connection to connect, but also from the vacuum cleaner to supply the switching device with the operating energy, For example, amplifiers can be used in the switching device and relays can be provided, the switching element operate or, if necessary, a locking device.
  • the electrical consumption of the switching device is included usually very low and therefore it is possible the supply via the consumer connection of the Vacuum cleaner to do without the vacuum cleaner assigned circuit solely because of this low Already switches on the vacuum cleaner. It is sufficient this circuit with threshold detection to be provided so that the activation of the vacuum cleaner only takes place if that over the consumer connection flowing current a certain threshold exceeds. This threshold is so chosen to be above the supply level of the starting device is necessary, however under the value that a usually to the consumer connection connected consumer required.
  • a conventional vacuum cleaner 1 is shown schematically in FIG shown with an intake manifold 2, a large one Dirt collecting container 3 and with one placed on it Suction unit, which is not specifically shown in the drawing is shown.
  • the suction unit connects the Dirt collecting container 3 via a likewise not shown Filter with the environment so that through the Intake 2 a suction flow through the dirt collector 3 and the filter directed into the environment can be.
  • a connectable to the intake manifold 2 flexible hose line can thus Vacuum dirt and dust particles and in Collect dirt collecting container 3. So far it is the vacuum cleaner 1 is a conventional one Vacuum cleaner, as is readily known to the expert is.
  • the vacuum cleaner 1 has an electrical consumer connection 4, which is preferably in the form of a normal power socket.
  • an electrical consumer can be connected an electric drill, for example, an electric grinder or the like, the over the consumer connection 4 with the necessary Operating energy is supplied.
  • an electric one Circuit 5 arranged, which determines whether over the Consumer terminal 4 a current flows. Is this the Case, this circuit 5 activates the electric motor of the Vacuum cleaner 1, so that the vacuum cleaner thereby in operation is set. Such a current flow is absent the consumer connection 4, the vacuum cleaner 1, if necessary switched off with a time delay. It is because of it possible to synchronize the vacuum cleaner with one at the Consumer connection 4 connected consumers, for example to operate an electrical tool.
  • a switching device 8 which is designed as a box-shaped unit is.
  • This switch-on device 8 is by means of a bracket 9 hung on the vacuum cleaner 1 and thereby releasably held this.
  • the switch-on device 8 has one at one end Connection 10 for a line 21 of a pneumatic Medium, for example for compressed air. On is further connection 11 for a pneumatic medium on the opposite side of the switching device arranged.
  • Connections 10 and 11 follow on the inside of the switching device 8 each have a blind hole 12 or 13 on ( Figures 2 to 4), which are so dense abut each other so that they overlap at least partially and thus a continuous connection between form the connections 10 and 11.
  • a magnetic piston 14 slidably mounted on which one in the Blind hole 12 arranged and located at the bottom 15 supporting coil spring 16 supports.
  • the piston 14 is usually by the coil spring 16 moved into a region of the blind hole 12, which has no connection to the adjacent blind hole 13 ( Figures 2 and 3). However, will the port 10 supplied pneumatic medium, shifts the piston 14 through this pneumatic Flow and gives the connection to the neighboring Blind hole 13 free ( Figure 4). Im flowed through State is therefore the piston 14 against the action of Coil spring 16 moved, in the non-flowed on the other hand, not shifted.
  • the piston 14 is designed and actuated as a magnet a reed contact 17, which runs along the blind hole 12 is arranged. Depending on the position of the magnetic piston 14, the reed contact 17 is opened once (FIG 3), once closed ( Figure 4).
  • switch 19 When switch 19 is open, line 18 is interrupted, so that the consumer connection 4 is not a consumer "recognizes” that a current cannot flow. Becomes the switch 19, however, closed, flows from the consumer connection 4 a current through the capacitor 20.
  • This capacitor 20 forms a reactance, of the electrical circuit 5 in the vacuum cleaner 1 is recognized as a consumer, and this circuit 5 switches on the vacuum cleaner 1 in this case.
  • the switch 19 is only closed as long as it is external operated device is in operation, so long for example the blind holes 12 and 13 of Compressed air flow.
  • the switch 19 When switching off the device and the interruption of this compressed air flow opens the reed contact 17 and this leads to the opening of the switch 19. This makes the vacuum cleaner 1 over the circuit 5 switched off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Keying Circuit Devices (AREA)
  • Switches With Compound Operations (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

The vacuum cleaner power-on device (8) includes an electrical load connection (4) and an associated electrical power-on automatic mechanism, which turns on the vacuum cleaner when a device connected to the load connection is turned on. The power-on device is connected to the load connection to operate a device which is not connected to the load connection. The power-on device has a switch element which is operated by the device. When the device is operated the switch element connects the load connection to an electrically simulated load.

Description

Die Erfindung betrifft einen Staubsauger, der einen elektrischen Verbraucheranschluß und eine diesem Verbraucheranschluß zugeordnete elektrische Schaltung aufweist, die den Staubsauger einschaltet, wenn ein an den Verbraucheranschluß angeschlossener Verbraucher eingeschaltet wird.The invention relates to a Vacuum cleaner that has an electrical consumer connection and an electrical one assigned to this consumer connection Has circuit that turns on the vacuum cleaner, if a connected to the consumer connection Consumer is switched on.

Ein solcher Staubsauger ist beispielsweise in der EP 0 455 226 A2 beschrieben. Staubsauger werden häufig eingesetzt, um Stäube abzusaugen, die durch Werkzeuge beim Bearbeiten von Gegenständen entstehen, beispielsweise beim Bohren oder Schleifen. Üblicherweise handelt es sich dabei um elektrisch angetriebene Werkzeuge. Die Absaugung durch den Staubsauger ist dabei nur notwendig, solange diese Werkzeuge in Betrieb sind, das heißt, der Staubsauger und das elektrische Werkzeug werden eng aufeinander abgestimmt eingesetzt. Aus diesem Grunde ist es bekannt, das Werkzeug direkt an einen Verbraucheranschluß des Staubsaugers anzuschließen und im Staubsauger selbst ein Einschaltgerät vorzusehen, welches feststellt, daß über den Verbraucheranschluß ein Strom fließt, daß also das an diesen Verbraucheranschluß angeschlossene Werkzeug betrieben wird.Such a vacuum cleaner is for example in the EP 0 455 226 A2. Vacuum cleaners are becoming common used to extract dusts by tools arise when editing objects, for example when drilling or grinding. Usually acts these are electrically powered tools. The Extraction by the vacuum cleaner is only necessary as long as these tools are in use, that means the vacuum cleaner and the electrical tool are used closely coordinated. For this Basically, it is known to directly connect the tool to one Connect the consumer connection of the vacuum cleaner and to provide a switch-on device in the vacuum cleaner itself, which determines that the consumer connection a current flows, that is to this consumer connection connected tool is operated.

Sobald dies der Fall ist, wird durch das Einschaltgerät der Staubsauger eingeschaltet. Dadurch ergibt sich automatisch eine Synchronisation des Staubsaugerbetriebs und des Werkzeugbetriebs. As soon as this is the case, the switch-on device the vacuum cleaner is switched on. This results in automatic synchronization of the vacuum cleaner operation and tool operation.

Eine solche Kombination läßt sich jedoch nur betreiben, wenn das Werkzeug oder allgemeiner der Verbraucher an den elektrischen Verbraucheranschluß des Staubsaugeranschlusses angeschlossen ist und diesem zur Inbetriebnahme Strom entnimmt. Wird der Verbraucher dagegen von einer anderen Energiequelle angetrieben, kann eine solche kombinierte Betriebsweise des Verbrauchers und des Staubsaugers nicht mehr vorgenommen werden.However, such a combination can only be operated if the tool or more generally the consumer to the electrical consumer connection of the Vacuum cleaner connection is connected and this takes power for commissioning. Becomes the consumer driven by another energy source, can such a combined operation of the Consumer and the vacuum cleaner no longer made become.

Es ist Aufgabe der Erfindung, eine Staubsauger mit einem Einschaltgerät vorzuschlagen, bei dem eine solche mit dem Betrieb des Verbrauchers korrelierte Ein- und Ausschaltung des Staubsaugers auch dann erfolgen kann, wenn der Verbraucher von einer Fremdenergiequelle angetrieben wird, also nicht über den Verbraucheranschluß des Staubsaugers.It is an object of the invention a vacuum cleaner with a To propose the starting device, where one with the operation of the Correlated switching on and off of the Vacuum cleaner can also be done when the consumer powered by an external energy source will not be through the consumer connection of the Vacuum cleaner.

US-A-4 238 689 beschreibt einen Staubsauger mit einem fest angeordneter Schalter, der von Hand zu betätigen ist. Dieser Schalter hat drei Stellungen, in einer Stellung verbindet er ein Zusatzgerät mit der Betriebsspannung des Staubsaugers, in einer zweiten Stellung unterbricht er diese Verbindung und in einer dritten Stellung verbindet er die Spannungsquelle des Staubsaugers mit einem simulierten Verbraucher.US-A-4 238 689 describes one vacuum cleaner with a fixed switch, which is operated by hand. This switch has three Positions, in one position he connects an additional device the operating voltage of the vacuum cleaner, in a second position he breaks this connection and in a third position it connects the voltage source of the vacuum cleaner with one simulated consumer.

Im Rahmen der US-A-4 238 689 fehlt ein mit dem Staubsauger lösbar verbindbares Einschaltgerät. Weiterhin legt es diese Druckschrift in keiner Weise nahe, daß die Umschaltung auf den simulierten Verbraucher in Abhängigkeit vom Betriebszustand eines fremdbetätigten Gerätes erfolgenIn the context of US-A-4 238 689 there is no vacuum cleaner Detachably connectable switch-on device. Furthermore, this document in no way suggests that the switch to the simulated consumer depending from the operating state of an externally operated device

Diese Aufgabe wird bei einem Staubsauger der eingangs beschriebenen Art erfindungsgemäß dadurch gelöst, daß ein als Baueinheit ausgebildetes Einschaltgerät am Staubsauger lösbar befestigt und mit einem Kabel und einem an den Verbraucheranschluß angepaßten Anschlußstück versehen ist, und daß zum Betrieb eines nicht an den Verbraucheranschluß angeschlossenen Geräts in dem am Verbraucheranschluß angeschlossenen Einschaltgerät ein von dem nicht an den Verbraucheranschluß angeschlossenen Gerät abhängig von dessen Betrieb betätigbares Schaltglied vorgesehen ist, welches beim Betrieb dieses Geräts den Verbraucheranschluß mit einem elektrisch simulierten Verbraucher verbindet.This task is with a vacuum cleaner the beginning described type solved according to the invention, that one as a unit trained switch-on device on the vacuum cleaner releasably attached and with a cable and one to the consumer connection adapted connector is provided, and that to operate one not connected to the consumer connected device in the one connected to the consumer connection Switching device one of which is not connected to the Device connected to the consumer connection switching element actuable by its operation is provided, which during operation this device the consumer connection with an electrically simulated consumer connects.

Das Einschaltgerät wird als Baueinheit am Staubsauger lösbar befestigt ist und weist einen Kabel und ein an den Verbraucheranschluß angepaßten Anschlußstück auf. Es ist dadurch ohne weiteres möglich, den Staubsauger wahlweise unmittelbar mit einem elektrischen Verbraucher einzusetzen, wie dies an sich bekannt ist, oder aber mit einem extern angetriebenen Gerät. Im letzteren Fall wird das als Baueinheit ausgebildete Einschaltgerät am Staubsauger befestigt und über sein Kabel und sein Anschlußstück mit dem Verbraucheranschluß verbunden. Das Einschaltgerät selber wird dann von dem extern betriebenen Gerät geschaltet und verbindet den Staubsauger in der beschriebenen Weise mit einem simulierten Verbraucher.The switch-on device is a unit on Vacuum cleaner is releasably attached and has a cable and a connector adapted to the consumer connection on. This makes it easy possible to choose the vacuum cleaner directly with a to use electrical consumers such as this is known, or with an externally driven Device. In the latter case, this is called an assembly trained switch-on device attached to the vacuum cleaner and via its cable and its connector with the Consumer connection connected. The switch-on device itself is then switched by the externally operated device and connects the vacuum cleaner in the described Way with a simulated consumer.

Es wird also im Gegensatz zu bekannten Anordnungen dieser Art vorgesehen, daß das Einschaltgerät an den Verbraucheranschluß angeschlossen wird und nicht das Gerät, das synchron mit dem Staubsauger betrieben werden soll. Dieses an den Verbraucheranschluß angeschlossene Einschaltgerät wird nun von dem fremdbetriebenen Gerät so geschaltet, daß das Einschaltgerät bei Betrieb des fremdangetriebenen Geräts einen simulierten Verbraucher an den Verbraucheranschluß des Staubsaugers legt, so daß die dem Verbraucheranschluß des Staubsauger zugeordnete elektrische Schaltung einen Verbrauch an diesem Verbraucheranschluß erkennt und demgemäß den Staubsauger einschaltet. Das Einschaltgerät übernimmt also bei diesem Staubsauger die Rolle des an den Verbraucheranschluß angeschlossenen Verbrauchers, und das fremdangetriebene Gerät betätigt seinerseits das Schaltglied im Einschaltgerät, um den simulierten Verbraucher wahlweise mit dem Verbraucheranschluß des Staubsaugers zu verbinden oder ihn davon abzutrennen.So it is in contrast to known arrangements this type provided that the switching device to the Consumer connection is connected and not that Device that can be operated synchronously with the vacuum cleaner should. This connected to the consumer connection Switch-on device is now operated by the third party Device switched so that the switch-on device a simulated when operating the externally powered device Consumer to the consumer connection of the Vacuum cleaner sets, so that the consumer connection of the vacuum cleaner associated electrical circuit one Detects consumption at this consumer connection and accordingly turns on the vacuum cleaner. The switch-on device So takes over with this vacuum cleaner Role of the connected to the consumer connection Consumer, and operated the externally powered device in turn, the switching element in the starting device to the simulated consumers optionally with the consumer connection of the vacuum cleaner to connect or remove it cut off.

Das in dieser Weise fremdbetriebene Gerät kann natürlich sehr verschieden ausgebildet sein, insbesondere ist diese Anordnung günstig beim Betrieb von Werkzeugen aller Art. Deren Antrieb kann durch die verschiedensten externen Energiequellen erfolgen, es muß sich dabei keineswegs um einen elektrischen Antrieb handeln, sondern es sind auch andere Antriebe möglich, beispielsweise pneumatische oder hydraulische Antriebe. Wesentlich ist lediglich, daß das Einschalten des Geräts in irgendeiner Weise das Schaltglied im Einschaltgerät betätigt. Dies kann auf alle dem Fachmann geläufige Weisen geschehen, beispielsweise durch einfache mechanische Verbindungen mit dem Gerät oder durch Messung physikalischer Parameter am Gerät, die sich mit dem Betrieb desselben ändern.The device operated in this way can of course be very different, in particular this arrangement is favorable when operating tools of all kinds. Their drive can be varied external energy sources, it must be is by no means an electric drive, but other drives are possible, for example pneumatic or hydraulic drives. It is only essential that the switching on of the Device in any way the switching element in the starting device operated. This can all affect the professional common ways happen, for example by simple mechanical connections with the device or by measuring physical parameters on the device, the change with the operation of the same.

Besonders vorteilhaft ist es, wenn der elektrisch simulierte Verbraucher ein Blindwiderstand ist, der insbesondere durch einen Kondensator realisiert werden kann. Dies verhindert eine Aufheizung des simulierten Verbrauchers im Betrieb und stellt trotzdem sicher, daß die elektrische Schaltung des Staubsaugers den Verbraucher erkennt und den Staubsauger einschaltet.It is particularly advantageous if the electrically simulated Consumer is a reactance, in particular can be realized by a capacitor can. This prevents the simulated from heating up Consumer in operation and still ensures that the electrical circuit of the vacuum cleaner Recognizes the consumer and switches on the vacuum cleaner.

Bei einer besonders bevorzugten Ausführungsform ist vorgesehen, daß das Einschaltgerät bei einem pneumatisch angetriebenen Gerät in die Leitung des pneumatischen Mediums eingeschaltet ist und durch den Strom des pneumatischen Mediums betätigt wird.In a particularly preferred embodiment provided that the starting device at a pneumatic driven device in the line of pneumatic Medium is turned on and by the current of the pneumatic medium is actuated.

Weiterhin kann vorgesehen sein, daß das Einschaltgerät eine Schließeinrichtung für die Leitung des pneumatischen Mediums umfaßt, die von einer elektrischen Überwachungsschaltung des Staubsaugers über den Verbraucheranschluß und dessen Verbindung mit dem Einschaltgerät betätigbar ist. Es ist dann möglich, das Gerät auch vom Staubsauger aus auszuschalten, indem der Strom des pneumatischen Mediums unterbrochen wird. Dies kann beispielsweise dann günstig sein, wenn im Staubsauger eine Überwachungsschaltung für die Wirksamkeit des Saugstroms vorhanden ist. Wenn dieser Saugstrom beispielsweise bei Verschmutzung des Staubsaugerfilters zu schwach wird, spricht diese Überwachungsschaltung an und liefert über den Verbraucheranschluß ein Abschaltsignal an die Schließeinrichtung im Einschaltgerät, so daß das Gerät sicherheitshalber abgeschaltet wird, weil die Absaugung des Staubsaugers nicht mehr effektiv genug ist.Furthermore, it can be provided that the switch-on device a locking device for the line of the pneumatic Medium includes by an electrical monitoring circuit of the vacuum cleaner via the consumer connection and its connection to the switch-on device can be actuated. It is then possible to use the device also switch off from the vacuum cleaner by the Flow of the pneumatic medium is interrupted. This can be beneficial, for example, if Vacuum cleaner a monitoring circuit for effectiveness of the suction flow is present. If this Suction flow, for example, when the vacuum cleaner filter is dirty this monitoring circuit speaks too weak and delivers via the consumer connection a shutdown signal to the locking device in Switch-on device so that the device is switched off for safety reasons is because the vacuum of the vacuum cleaner is no longer effective enough.

Bei einer besonders bevorzugten Ausführungsform ist vorgesehen, daß das Schaltglied ein Reedkontakt ist und daß dieser durch einen Magneten betätigt wird, der abhängig vom Betrieb oder Nichtbetrieb des Geräts verschiebbar ist. Diese Verschiebebewegung könnte beispielsweise mechanisch durch einen Schalter erfolgen, der auch das Gerät einschaltet. In a particularly preferred embodiment provided that the switching element is a reed contact and that this is actuated by a magnet that movable depending on the operation or non-operation of the device is. This shifting movement could, for example done mechanically by a switch, which also turns on the device.

Bei einem pneumatisch betriebenen Gerät ist es besonders vorteilhaft, wenn der Magnet von dem das Gerät antreibenden Gasstrom verschiebbar ist. Damit erhält man automatisch beim Einschalten des pneumatisch betriebenen Geräts durch den das Gerät antreibenden pneumatischen Strom eine Betätigung des Schaltglieds im Einschaltgerät.It is special with a pneumatically operated device advantageous if the magnet from which the device driving gas stream is displaceable. So that gets one automatically when turning on the pneumatically operated Device by the device driving the device pneumatic current actuation of the switching element in the switching device.

Günstig ist es, wenn der Magnet ein in einem Strömungskanal des Gasstroms gegen die Wirkung einer elastischen Rückstellkraft verschiebbarer Kolben ist.It is beneficial if the magnet is in a flow channel of the gas flow against the action of an elastic Resetting force is displaceable piston.

Bei einer bevorzugten Ausführungsform der Erfindung ist vorgesehen, daß an der Verbindung des Einschaltgeräts, zum Verbraucheranschluß eine Versorgungsschaltung für die elektrischen Schaltelemente des Einschaltgeräts angeschlossen ist, deren elektrischer Verbrauch so niedrig ist, daß die elektrische Schaltung des Staubsaugers durch diesen Verbrauch allein noch nicht zur Einschaltung des Staubsaugers aktiviert wird. Die Leitungsverbindung des Einschaltgeräts zum Verbraucheranschluß wird bei dieser Ausführung also dazu ausgenutzt, nicht nur den simulierten Verbraucher an den Verbraucheranschluß anzuschließen, sondern auch vom Staubsauger aus das Einschaltgerät mit der Betriebsenergie zu versorgen, beispielsweise können im Einschaltgerät Verstärker und Relais vorgesehen sein, die das Schaltglied betätigen oder gegebenenfalls eine Schließeinrichtung. Der elektrische Verbrauch des Einschaltgeräts ist dabei in der Regel sehr niedrig, und daher ist es möglich, die Versorgung über den Verbraucheranschluß des Staubsaugers vorzunehmen, ohne daß die dem Staubsauger zugeordnete Schaltung allein aufgrund dieses geringen Verbrauchs bereits den Staubsauger einschaltet. Es genügt dazu, diese Schaltung mit einer Schwellwerterkennung zu versehen, so daß die Einschaltung des Staubsaugers nur dann erfolgt, wenn der über den Verbraucheranschluß fließende Strom einen bestimmten Schwellwert überschreitet. Dieser Schwellwert ist dabei so gewählt, daß er oberhalb des Werts liegt, der zur Versorgung des Einschaltgeräts notwendig ist, jedoch unter dem Wert, den ein üblicherweise an den Verbraucheranschluß angeschlossener Verbraucher benötigt.In a preferred embodiment of the invention it is provided that at the connection of the switching device, to the consumer connection a supply circuit for the electrical Switching elements of the switching device connected is whose electrical consumption is so low is that the electrical circuit of the vacuum cleaner not to be switched on by this consumption alone of the vacuum cleaner is activated. The line connection of the switching device to the consumer connection is therefore not used in this version only the simulated consumer to the consumer connection to connect, but also from the vacuum cleaner to supply the switching device with the operating energy, For example, amplifiers can be used in the switching device and relays can be provided, the switching element operate or, if necessary, a locking device. The electrical consumption of the switching device is included usually very low and therefore it is possible the supply via the consumer connection of the Vacuum cleaner to do without the vacuum cleaner assigned circuit solely because of this low Already switches on the vacuum cleaner. It is sufficient this circuit with threshold detection to be provided so that the activation of the vacuum cleaner only takes place if that over the consumer connection flowing current a certain threshold exceeds. This threshold is so chosen to be above the supply level of the starting device is necessary, however under the value that a usually to the consumer connection connected consumer required.

Die nachfolgende Beschreibung bevorzugter Ausführungsformen der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:

Figur 1:
eine schematische Seitenansicht eines Staubsaugers mit einem Verbraucheranschluß und einem aufgesetzten Einschaltgerät ohne daran angeschlossenes extern betriebenes Gerät;
Figur 2:
ein bevorzugtes Ausführungsbeispiel eines Schaltglieds für ein Einschaltgerät mit einem verschiebbaren Magneten zur Schaltung eines Reedkontakts im Längsschnitt längs Linie 2-2 in Figur 3;
Figur 3:
eine Längsschnittansicht längs Linie 3-3 in Figur 2 bei fehlender Durchströmung;
Figur 4:
eine Ansicht ähnlich Figur 3 mit Durchströmung und
Figur 5:
eine schematische Schaltung eines Einschaltgeräts.
The following description of preferred embodiments of the invention serves in conjunction with the drawing for a more detailed explanation. Show it:
Figure 1:
a schematic side view of a vacuum cleaner with a consumer connection and an attached switch-on device without an externally operated device connected thereto;
Figure 2:
a preferred embodiment of a switching element for a starting device with a displaceable magnet for switching a reed contact in longitudinal section along line 2-2 in Figure 3;
Figure 3:
a longitudinal sectional view taken along line 3-3 in Figure 2 with no flow;
Figure 4:
a view similar to Figure 3 with flow and
Figure 5:
a schematic circuit of a switching device.

In Figur 1 ist schematisch ein üblicher Staubsauger 1 dargestellt mit einem Ansaugstutzen 2, einem großen Schmutzsammelbehälter 3 und mit einem auf diesen aufgesetzten Saugaggregat, das in der Zeichnung nicht eigens dargestellt ist. Das Saugaggregat verbindet den Schmutzsammelbehälter 3 über ein ebenfalls nicht dargestelltes Filter mit der Umgebung, so daß durch den Ansaugstutzen 2 ein Saugstrom durch den Schmutzsammelbehälter 3 und das Filter hindurch in die Umgebung gerichtet werden kann. Eine an den Ansaugstutzen 2 anschließbare flexible Schlauchleitung kann somit Schmutzteilchen und Staubteilchen absaugen und im Schmutzsammelbehälter 3 sammeln. Insoweit handelt es sich beim Staubsauger 1 um einen konventionellen Staubsauger, wie er dem Fachmann ohne weiteres geläufig ist.A conventional vacuum cleaner 1 is shown schematically in FIG shown with an intake manifold 2, a large one Dirt collecting container 3 and with one placed on it Suction unit, which is not specifically shown in the drawing is shown. The suction unit connects the Dirt collecting container 3 via a likewise not shown Filter with the environment so that through the Intake 2 a suction flow through the dirt collector 3 and the filter directed into the environment can be. A connectable to the intake manifold 2 flexible hose line can thus Vacuum dirt and dust particles and in Collect dirt collecting container 3. So far it is the vacuum cleaner 1 is a conventional one Vacuum cleaner, as is readily known to the expert is.

Der Staubsauger 1 weist einen elektrischen Verbraucheranschluß 4 auf, der vorzugsweise die Form einer normalen Netzsteckdose hat. An diesen Verbraucheranschluß 4 kann ein elektrischer Verbraucher angeschlossen werden, beispielsweise eine elektrische Bohrmaschine, eine elektrische Schleifmaschine oder dergleichen, die über den Verbraucheranschluß 4 mit der notwendigen Betriebsenergie versorgt wird.The vacuum cleaner 1 has an electrical consumer connection 4, which is preferably in the form of a normal power socket. At this consumer connection 4 an electrical consumer can be connected an electric drill, for example, an electric grinder or the like, the over the consumer connection 4 with the necessary Operating energy is supplied.

Im Inneren des Staubsaugers 1 ist eine elektrische Schaltung 5 angeordnet, die feststellt, ob über den Verbraucheranschluß 4 ein Strom fließt. Ist dies der Fall, aktiviert diese Schaltung 5 den Elektromotor des Staubsaugers 1, so daß der Staubsauger dadurch in Betrieb gesetzt wird. Fehlt ein solcher Stromfluß über den Verbraucheranschluß 4, wird der Staubsauger 1 gegebenenfalls zeitversetzt abgeschaltet. Es ist dadurch möglich, den Staubsauger synchron mit einem an den Verbraucheranschluß 4 angeschlossenen Verbraucher, beispielsweise einem elektrischen Werkzeug zu betrieben.Inside the vacuum cleaner 1 is an electric one Circuit 5 arranged, which determines whether over the Consumer terminal 4 a current flows. Is this the Case, this circuit 5 activates the electric motor of the Vacuum cleaner 1, so that the vacuum cleaner thereby in operation is set. Such a current flow is absent the consumer connection 4, the vacuum cleaner 1, if necessary switched off with a time delay. It is because of it possible to synchronize the vacuum cleaner with one at the Consumer connection 4 connected consumers, for example to operate an electrical tool.

Bei dem dargestellten Ausführungsbeispiel ist jedoch an den Verbraucheranschluß 4 kein elektrisches Werkzeug oder dergleichen angeschlossen, sondern über ein Anschlußkabel 6 und ein Anschlußstück 7 ein Einschaltgerät 8, das als kastenförmige Baueinheit ausgebildet ist. Dieses Einschaltgerät 8 wird mittels eines Bügels 9 am Staubsauger 1 eingehängt und dadurch lösbar an diesem gehalten.However, in the illustrated embodiment no electrical tools at the consumer connection 4 or the like connected, but via a Connection cable 6 and a connector 7 a switching device 8, which is designed as a box-shaped unit is. This switch-on device 8 is by means of a bracket 9 hung on the vacuum cleaner 1 and thereby releasably held this.

Das Einschaltgerät 8 weist an seinem einen Ende einen Anschluß 10 für eine Leitung 21 eines pneumatischen Mediums auf, also beispielsweise für Druckluft. Ein weiterer Anschluß 11 für ein pneumatisches Medium ist auf der gegenüberliegenden Seite des Einschaltgeräts angeordnet.The switch-on device 8 has one at one end Connection 10 for a line 21 of a pneumatic Medium, for example for compressed air. On is further connection 11 for a pneumatic medium on the opposite side of the switching device arranged.

An die Anschlüsse 10 und 11 schließt sich im Inneren des Einschaltgeräts 8 jeweils eine Sacklochbohrung 12 beziehungsweise 13 an (Figuren 2 bis 4), die so dicht aneinanderliegen, daß sie zumindest teilweise überlappen und somit eine durchgehende Verbindung zwischen den Anschlüssen 10 und 11 bilden.Connections 10 and 11 follow on the inside of the switching device 8 each have a blind hole 12 or 13 on (Figures 2 to 4), which are so dense abut each other so that they overlap at least partially and thus a continuous connection between form the connections 10 and 11.

In einer Sacklochbohrung 12 ist ein magnetischer Kolben 14 verschiebbar gelagert, an dem sich eine in der Sacklochbohrung 12 angeordnete und sich an deren Boden 15 abstützende Schraubenfeder 16 abstützt.In a blind bore 12 is a magnetic piston 14 slidably mounted on which one in the Blind hole 12 arranged and located at the bottom 15 supporting coil spring 16 supports.

Durch die Schraubenfeder 16 wird der Kolben 14 üblicherweise in einen Bereich der Sacklochbohrung 12 verschoben, der keine Verbindung zur benachbarten Sacklochbohrung 13 hat (Figuren 2 und 3). Wird jedoch über den Anschluß 10 pneumatisches Medium zugeführt, verschiebt sich der Kolben 14 durch diese pneumatische Strömung und gibt die Verbindung zur benachbarten Sacklochbohrung 13 frei (Figur 4). Im durchströmten Zustand ist also der Kolben 14 gegen die Wirkung der Schraubenfeder 16 verschoben, im nichtdurchströmten dagegen unverschoben. The piston 14 is usually by the coil spring 16 moved into a region of the blind hole 12, which has no connection to the adjacent blind hole 13 (Figures 2 and 3). However, will the port 10 supplied pneumatic medium, shifts the piston 14 through this pneumatic Flow and gives the connection to the neighboring Blind hole 13 free (Figure 4). Im flowed through State is therefore the piston 14 against the action of Coil spring 16 moved, in the non-flowed on the other hand, not shifted.

Der Kolben 14 ist als Magnet ausgebildet und betätigt einen Reedkontakt 17, der längs der Sacklochbohrung 12 angeordnet ist. Je nach Stellung des magnetischen Kolben 14 ist der Reedkontakt 17 einmal geöffnet (Figur 3), einmal geschlossen (Figur 4).The piston 14 is designed and actuated as a magnet a reed contact 17, which runs along the blind hole 12 is arranged. Depending on the position of the magnetic piston 14, the reed contact 17 is opened once (FIG 3), once closed (Figure 4).

Es ist damit also möglich, das Vorliegen eines pneumatischen Stroms in der Leitung 21 festzustellen, in die über die Anschlüsse 10 und 11 das Einschaltgerät 8 eingeschaltet ist. Diese Leitung 21 führt beispielsweise zu einem pneumatisch antreibbaren Werkzeug, das in Betrieb gesetzt wird, wenn durch diese Leitung ein pneumatischer Strom hindurchgeführt wird, beispielsweise ein Druckluftstrom. Damit ergibt sich abhängig vom Betrieb dieses Werkzeugs ein Schalten des Reedkontakts 17.So it is possible to have a pneumatic Determine current in line 21, in the the switch-on device 8 via the connections 10 and 11 is switched on. This line 21 leads, for example to a pneumatically driven tool that is put into operation when through this line pneumatic current is passed through, for example a stream of compressed air. This results in dependency switching of the reed contact from the operation of this tool 17th

Im Einschaltgerät 8 ist eine elektrische Schaltung angeordnet, wie sie schematisch in Figur 5 dargestellt ist. Diese umfaßt im wesentlichen eine die beiden Adern des Anschlußkabels 6 miteinander verbindende Leitung 18, in die ein Schalter 19 und ein Kondensator 20 eingeschaltet sind. Der Schalter 19 kann direkt von dem Reedkontakt 17 gebildet werden, allerdings ist es vorteilhaft, wenn der Reedkontakt 17 seinerseits eine elektrische Schaltung betätigt, die dann einen elektrisch aktivierbaren Schalter 19 betätigt, so daß hier auch robustere Schalter verwendet werden können. An electrical circuit is arranged in the switch-on device 8, as shown schematically in Figure 5 is. This essentially comprises one of the two Cores of the connecting cable 6 connecting each other Line 18 into which a switch 19 and a capacitor 20 are switched on. The switch 19 can directly from the reed contact 17 are formed, however it is advantageous if the reed contact 17 in turn a operated electrical circuit, which is then an electrical activatable switch 19 actuated so that here more robust switches can also be used.

Bei geöffnetem Schalter 19 ist die Leitung 18 unterbrochen, so daß der Verbraucheranschluß 4 keine Verbraucher "erkennt", ein Strom kann nicht fließen. Wird der Schalter 19 jedoch geschlossen, fließt vom Verbraucheranschluß 4 ein Strom über den Kondensator 20. Dieser Kondensator 20 bildet einen Blindwiderstand, der von der elektrischen Schaltung 5 im Staubsauger 1 als Verbraucher erkannt wird, und diese Schaltung 5 schaltet in diesem Falle den Staubsauger 1 ein.When switch 19 is open, line 18 is interrupted, so that the consumer connection 4 is not a consumer "recognizes" that a current cannot flow. Becomes the switch 19, however, closed, flows from the consumer connection 4 a current through the capacitor 20. This capacitor 20 forms a reactance, of the electrical circuit 5 in the vacuum cleaner 1 is recognized as a consumer, and this circuit 5 switches on the vacuum cleaner 1 in this case.

Der Schalter 19 ist nur geschlossen, so lange das extern betriebene Gerät in Betrieb ist, so lange also beispielsweise die Sacklochbohrungen 12 und 13 von Druckluft durchströmt werden. Beim Abschalten des Geräts und der Unterbrechung dieses Druckluftstroms öffnet sich der Reedkontakt 17 und dies führt zur Öffnung des Schalters 19. Dadurch wird der Staubsauger 1 über die Schaltung 5 abgeschaltet.The switch 19 is only closed as long as it is external operated device is in operation, so long for example the blind holes 12 and 13 of Compressed air flow. When switching off the device and the interruption of this compressed air flow opens the reed contact 17 and this leads to the opening of the switch 19. This makes the vacuum cleaner 1 over the circuit 5 switched off.

Bei einem bevorzugten Ausführungsbeispiel kann in der Leitung 21 des pneumatischen Mediums, die in Figur 5 schematisch dargestellt ist, eine Schließeinrichtung 22 vorgesehen sein, beispielsweise ein Magnetventil. Diese elektrisch betätigbare Schließeinrichtung 22 ist über Leitungen 23 und 24 mit den beiden Adern des Anschlußkabels 6 verbunden. Es ist daher möglich, daß die elektrische Schaltung 5 im Staubsauger 1 über das Anschlußkabel 6 und die Leitungen 23 und 24 die Schließeinrichtung 22 betätigt und die Leitung 21 wahlweise öffnet und verschließt. Normalerweise ist diese Leitung geöffnet, eine Überwachungsschaltung im Staubsauger 1 kann jedoch Signale zu deren Schließung erzeugen. Diese Überwachungsschaltung kann beispielsweise die Größe des Saugluftstroms messen und damit den wirksamen Betrieb des Staubsaugers. Wird dieser Betrieb eingeschränkt, beispielsweise durch Verstopfung des Filters, wird ein Signal zur Aktivierung der Schließeinrichtung 22 erzeugt, wodurch die pneumatische Strömung in der Leitung 21 unterbrochen wird, das heißt das pneumatisch betriebene Gerät wird stillgesetzt. Dies führt dann auch zur Abschaltung des Staubsaugers, so daß der Benutzer darauf hingewiesen wird, daß eine Funktionsstörung vorliegt.In a preferred embodiment, the Line 21 of the pneumatic medium, which is shown in FIG is shown schematically, a locking device 22 may be provided, for example a solenoid valve. This electrically operated locking device 22 is via lines 23 and 24 with the two wires of the connecting cable 6 connected. It is therefore possible that the electrical circuit 5 in the vacuum cleaner 1 via the Connection cable 6 and lines 23 and 24 the Locking device 22 actuated and line 21 optionally opens and closes. Usually is this line opened, a monitoring circuit in the Vacuum cleaner 1 can, however, signals to close them produce. This monitoring circuit can, for example measure the size of the suction air flow and thus the effective operation of the vacuum cleaner. Will this Operation restricted, for example due to constipation of the filter, a signal to activate the Closing device 22 generates, whereby the pneumatic Flow in line 21 is interrupted the pneumatically operated device is shut down. This then also leads to the vacuum cleaner being switched off, so that the user is warned that there is a malfunction.

Claims (9)

  1. A vacuum cleaner, comprising an electrical consumer terminal (4) and an electrical circuit which is associated with the said consumer terminal (4) and which switches on the vacuum cleaner when a consumer device (20) connected to the consumer terminal (4) is switched on, characterized in that a switch-on appliance designed as a structural unit is detachably secured to the vacuum cleaner (1) and is provided with a cable (6) and a connecting member (7) adapted to the consumer terminal (4), and a switching member (19), which is actuable by the appliance not connected to the consumer terminal and as a function of the said appliance and which during the operation of the said appliance connects the consumer terminal (4) to an electrically simulated consumer device (20), is provided for operating an appliance - not connected to the consumer terminal (4) ― in the switch-on appliance (8) connected to the consumer terminal (4).
  2. A vacuum cleaner according to Claim 1, characterized in that the electrically simulated consumer device (20) is a reactive impedance.
  3. A vacuum cleaner according to Claim 2, characterized in that the electrically simulated consumer device (20) is a capacitor.
  4. A vacuum cleaner according to one of the preceding Claims, characterized in that in the case of a pneumatically driven appliance the switch-on appliance is connected into the line (21) of the pneumatic medium and is actuated by the current of the pneumatic medium.
  5. A vacuum cleaner according to Claim 4, characterized in that the switch-on appliance comprises a closure device (22) for the line (21) of the pneumatic medium, which [line] is actuable by an electrical monitoring circuit of the vacuum cleaner (1) by way of the consumer terminal (4) and its connexion (6) to the switch-on appliance (8).
  6. A vacuum cleaner according to one of the preceding Claims, characterized in that the switching member is a reed contact (17), and the said reed contact (17) is actuated by a magnet (14) which is displaceable as a function of the operation or non-operation of the appliance.
  7. A vacuum cleaner according to Claim 6, characterized in that in the case of a pneumatically driven appliance the magnet (14) is displaceable by the gas flow driving the appliance.
  8. A vacuum cleaner according to Claim 7, characterized in that the magnet (14) is a piston displaceable against the action of a resilient restoring force in a flow duct (12) of the gas flow.
  9. A vacuum cleaner according to one of the preceding Claims, characterized in that a supply circuit for the electrical switching elements of the switch-on appliance (8) is connected to the connexion of the switch-on appliance to the consumer terminal (4), the electrical consumption of the said supply circuit being so low that the electrical circuit (5) of the vacuum cleaner (1) is activated by this consumption alone but not yet so as to switch on the vacuum cleaner (1).
EP96112776A 1995-08-17 1996-08-08 Switch-on device for a vacuum cleaner Expired - Lifetime EP0788760B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19530187A DE19530187C1 (en) 1995-08-17 1995-08-17 Power-on device for vacuum cleaner
DE19530187 1995-08-17

Publications (3)

Publication Number Publication Date
EP0788760A2 EP0788760A2 (en) 1997-08-13
EP0788760A3 EP0788760A3 (en) 1998-06-03
EP0788760B1 true EP0788760B1 (en) 2001-05-23

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ID=7769663

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Application Number Title Priority Date Filing Date
EP96112776A Expired - Lifetime EP0788760B1 (en) 1995-08-17 1996-08-08 Switch-on device for a vacuum cleaner

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EP (1) EP0788760B1 (en)
AT (1) ATE201314T1 (en)
DE (2) DE19530187C1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19736595B4 (en) * 1997-08-22 2007-04-12 BSH Bosch und Siemens Hausgeräte GmbH Wireless remote control device for a vacuum cleaner
DE10134062A1 (en) * 2001-07-13 2003-01-30 Alto Deutschland Gmbh Device for sucking up dirt/trash has electrically operated turbine and pneumatic switch-on sequence of automatic operations run by external pneumatic tool
DE102009015642A1 (en) * 2009-03-21 2010-09-30 Festool Gmbh Suction device with function module

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238689A (en) * 1979-02-28 1980-12-09 Beamco Co., Inc. Vacuum cleaner control system
US5099157A (en) * 1988-06-10 1992-03-24 Milwaukee Electric Tool Corporation Master/slave circuit employing triacs
DE9005070U1 (en) * 1990-05-04 1991-06-20 WAP Reinigungssysteme GmbH & Co, 7919 Bellenberg Automatic switch-on for a suction device

Also Published As

Publication number Publication date
EP0788760A3 (en) 1998-06-03
ATE201314T1 (en) 2001-06-15
DE19530187C1 (en) 1996-08-29
DE59606954D1 (en) 2001-06-28
EP0788760A2 (en) 1997-08-13

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