EP0288742A2 - Vacuum cleaner with a suction tube - Google Patents

Vacuum cleaner with a suction tube Download PDF

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Publication number
EP0288742A2
EP0288742A2 EP88104714A EP88104714A EP0288742A2 EP 0288742 A2 EP0288742 A2 EP 0288742A2 EP 88104714 A EP88104714 A EP 88104714A EP 88104714 A EP88104714 A EP 88104714A EP 0288742 A2 EP0288742 A2 EP 0288742A2
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EP
European Patent Office
Prior art keywords
vacuum cleaner
connecting piece
connecting sleeve
slip ring
sleeve
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.)
Withdrawn
Application number
EP88104714A
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German (de)
French (fr)
Other versions
EP0288742A3 (en
Inventor
Herbert Dipl.-Ing. Fleischmann
Dieter Dipl.-Ing. Kalwa
Gerhard Dipl.-Ing. Erdmann
Gottfried Schneider
Gerhard Dipl.-Ing. Stettner
Roy Smith
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0288742A2 publication Critical patent/EP0288742A2/en
Publication of EP0288742A3 publication Critical patent/EP0288742A3/en
Withdrawn legal-status Critical Current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
    • 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
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings
    • A47L9/246—Hose or pipe couplings with electrical connectors

Definitions

  • the invention relates to a vacuum cleaner according to the preamble of the first claim.
  • a known vacuum cleaner of this type (DE-OS 17 03 053) is located in a front wall vertical in the operating position of the device housing, a connecting sleeve, the axis of which extends horizontally.
  • a connecting sleeve In an end wall of the sleeve pointing into the interior of the device housing there are two contact pins which run parallel to the axis of the connecting sleeve and are each pressed towards the open end of the sleeve by a contact spring.
  • These contact springs are connected to electrical lines, which lead to electrical devices arranged inside the housing.
  • the contact pins form counter-contacts to slip ring surfaces, which are provided on the front step heels of a connecting piece for a suction hose.
  • the slip ring surfaces which are electrically separated from one another and encircling the end face, are connected to electrical conductors which are guided in the hose jacket.
  • the slip ring surfaces are each connected to a cylindrical sleeve, one of which is fixed on the inner surface and the other on the outer surface of the connecting piece.
  • the invention has for its object to take a vacuum cleaner according to the preamble of the first claim measures by which a simple, axially short structure in the field of electrical contacting means is achieved.
  • the slip ring surfaces and mating contacts required for the electrical coupling can be arranged in the region of the outer surface of the connecting piece and the connecting sleeve, which is necessary for a secure fit of the connecting piece in the connecting sleeve anyway.
  • the slip ring surfaces only contribute to increasing the diameter of the connecting piece with their material thickness, and the mating contacts can be designed as tangentially guided sliding contact springs, which also have an insignificant space requirement in the radial direction.
  • the axis of the connecting sleeve or of the inserted connecting piece in the operating position and in the main direction of movement of the device housing is directed upwards at an acute angle and is perpendicular to a correspondingly inclined front side of the device housing.
  • This arrangement of the electromechanical rotary coupling on the device housing does not restrict the working area for the suction hose around the device housing, since when the suction hose is guided to the side, a force component occurs which causes the rotating coupling to rotate.
  • a second rotary coupling at the other end of the suction hose can be omitted without twisting with loops To have to accept suction hose when using.
  • a device housing (1) of a vacuum cleaner has a dust chamber cover (2) which is attached to it in a detachable or pivotable manner and is located in the operating position at the top.
  • the dust chamber cover (2) closes a dust collecting chamber in which a dust filter is arranged.
  • the dust chamber cover (2) has a front wall (3) which points in the main direction of movement indicated by the arrow (4) and is inclined at an angle of approximately 45 ° to the rear in the operating position shown.
  • the counter contacts are preferably on their lateral surface (6) adjacent side in the cross-sectional area shown in Figure 2 so curved that only their central parts can protrude beyond the lateral surface (6) and their edge zones remain hidden in the wall thickness of the connecting sleeve (5).
  • a connecting piece (8) is inserted axially into the connecting sleeve (5), the outer lateral surface of which in the area of the connecting sleeve has a diameter adapted to the inside diameter of the connecting sleeve (5).
  • closing ring surfaces (9) are embedded so that their circumference lies with the lateral surface of the connecting piece in a cylinder plane.
  • the locking ring surfaces (9) are formed by pipe sections made of electrically conductive material and are in electrically conductive contact with the counter contacts (7) in the working position shown.
  • a suction hose (10) is connected to the connecting piece (8), in which, for example, electrical conductors (11) worked spirally into the lateral surface are electrically connected to the slip ring contacts (9).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)

Abstract

Provided for a vacuum cleaner with a suction tube is a rotary coupling with a connection nozzle (8) of the suction tube and a connection sleeve (5) provided in the equipment housing. The connection nozzle (8) is inserted rotatably in the connection sleeve (5), at least one electrical slip ring surface (9) being arranged on the connection nozzle (8) and at least one counter-contact (7) being arranged on the connection sleeve (5). In order to achieve a simple construction, the slip ring surface (9) is arranged on the outside shell surface of the connection nozzle (8) and the counter-contact (7) on the inside shell surface (6) of the connection sleeve (5). The axis of the connection sleeve (5) or of the connection nozzle (8) is directed upwards at an acute angle in the operating position and in the main direction (4) of movement of the equipment housing. <IMAGE>

Description

Die Erfindung betrifft einen Staubsauger gemäß dem Oberbegriff des ersten Anspruchs.The invention relates to a vacuum cleaner according to the preamble of the first claim.

Bei einem bekannten Staubsauger dieser Art (DE-OS 17 03 053) befindet sich in einer in der Betriebslage des Gerätegehäuses senkrechten Frontwand eine Anschlußhülse, deren Achse waagrecht verläuft. In einer in das Innere des Gerätegehäuses weisenden Stirnwand der Hülse befinden sich zwei parallel zur Achse der Anschlußhülse verlaufende Kontaktstifte, die durch je eine Kontaktfeder zum offenen Ende der Hülse hingedrückt werden. Diese Kontaktfedern stehen mit elektrischen Leitungen in Verbindung, welche zu innerhalb des Gehäuses angeordneten elektrischen Einrichtungen führen. Die Kontaktstifte bilden dabei Gegenkontakte zu Schleifringflächen, welche an stirnseitigen Stufenabsätzen eines Anschlußstutzens für einen Saugschlauch vorgesehen sind. Die elektrisch voneinander getrennten und stirnseitig umlaufenden Schleifringflächen sind an elektrische Leiter angeschlossen, die in der Schlauchumhüllung geführt sind. Bei in die Anschlußhülse betriebsmäßig eingestrecktem Anschlußstutzen kontaktieren die Gegenkontakte die jeweils zugehörige Gegenkontaktfläche. Die Schleifringflächen sind jeweils mit einer zylindrischen Hülse verbunden, von welchen die eine an der innenliegenden Mantefläche und die andere an der außenliegenden Mantelfläche des Anschlußstutzens festgesetzt ist. Bei diesem Aufbau erstrecken sich sowohl die Hülsen der Schliefringflächen wie die sie kontaktierenden stiftförmigen Gegenkontakte in axialer Richtung, wodurch für die so aufgebaute Kupplung ein erheblicher axialer Bauraum in Anspruch genommen wird. Zudem erfordert die Herstellung der einzelnen Teile der elektrischen Kupplungsmittel einen erheblichen technischen Aufwand und manuelle Fertigkeiten bei der Montage. Dabei ermöglicht die elektrische Drehkupplung zwar ein Verdrehen des Schlauches um seineIn a known vacuum cleaner of this type (DE-OS 17 03 053) is located in a front wall vertical in the operating position of the device housing, a connecting sleeve, the axis of which extends horizontally. In an end wall of the sleeve pointing into the interior of the device housing there are two contact pins which run parallel to the axis of the connecting sleeve and are each pressed towards the open end of the sleeve by a contact spring. These contact springs are connected to electrical lines, which lead to electrical devices arranged inside the housing. The contact pins form counter-contacts to slip ring surfaces, which are provided on the front step heels of a connecting piece for a suction hose. The slip ring surfaces, which are electrically separated from one another and encircling the end face, are connected to electrical conductors which are guided in the hose jacket. When the connecting piece is operationally stretched into the connecting sleeve, the mating contacts contact the respective mating contact surface. The slip ring surfaces are each connected to a cylindrical sleeve, one of which is fixed on the inner surface and the other on the outer surface of the connecting piece. With this construction, both the sleeves of the closing ring surfaces and the pin-shaped mating contacts contacting them extend in the axial direction, as a result of which a considerable axial installation space is required for the coupling constructed in this way. It also requires the manufacture of each Parts of the electrical coupling means a considerable technical effort and manual skills during assembly. The electric rotary coupling allows the hose to be twisted around its

Längsachse, jedoch kann der Saugschlauch an der Kupplungsstelle nicht folgen, wenn der Saugschlauch seitlich zur Hauptbewegungsrichtung des Gehäuses gezogen wird.Longitudinal axis, however, the suction hose cannot follow at the coupling point if the suction hose is pulled sideways to the main direction of movement of the housing.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Staubsauger gemäß dem Oberbegriff des ersten Anspruchs Maßnahmen zu treffen, durch die ein einfacher, axial kurzer Aufbau im Bereich der elektrischen Kontaktierungsmittel erreicht wird.The invention has for its object to take a vacuum cleaner according to the preamble of the first claim measures by which a simple, axially short structure in the field of electrical contacting means is achieved.

Die Lösung dieser Aufgabe erfolgt gemäß der Erfindung durch die kennzeichnenden Merkmale des ersten Anspruchs.This object is achieved according to the invention by the characterizing features of the first claim.

Bei einem Aufbau eines Staubsaugers gemäß der Erfindung können die für die elektrische Kupplung erforderlichen Schleifringflächen und Gegenkontakte im Bereich der Mantelfläche des Anschlußstutzens und der Anschlußhülse angeordnet werden, die für einen sicheren Sitz des Anschlußstutzens in der Anschlußhülse ohnehin erforderlich ist. Dabei tragen die Schleifringflächen nur mit ihrer Materialstärke zur Vergrößerung des Durchmessers des Anschlußstutzens bei, und die Gegenkontakte können als tangential herangeführte Schleifkontaktfedern ausgebildet werden, die in radialer Richtung ebenfalls einen unerheblichen Platzbedarf aufweisen. Insbesondere ist die Achse der Anschlußhülse bzw. des eingesteckten Anschlußstutzens in der Betriebslage und in der Hauptbewegungsrichtung des Gerätegehäuses unter einem spitzen Winkel nach oben gerichtet und steht senkrecht auf einer entsprechend geneigten Frontseite des Gerätegehäuses. Durch diese Anordnung der elektro-mechanischen Drehkupplung am Gerätegehäuse wird der Arbeitsbereich für den Saugschlauch um das Gerätegehäuse herum nicht eingeschränkt, da beim Führen des Saugschlauches nach der Seite eine Kraftkomponente auftritt, welche eine Drehung der Drehkupplung bewirkt. Hierdurch kann eine zweite Drehkupplung am anderen Ende des Saugschlauches entfallen, ohne eine Verwindung mit Schleifenbildung des Saugschlauches bei der Benutzung in Kauf nehmen zu müssen. Andere vorteilhafte Weiterbildungen sind in den übrigen Ansprüchen angegeben.In a construction of a vacuum cleaner according to the invention, the slip ring surfaces and mating contacts required for the electrical coupling can be arranged in the region of the outer surface of the connecting piece and the connecting sleeve, which is necessary for a secure fit of the connecting piece in the connecting sleeve anyway. The slip ring surfaces only contribute to increasing the diameter of the connecting piece with their material thickness, and the mating contacts can be designed as tangentially guided sliding contact springs, which also have an insignificant space requirement in the radial direction. In particular, the axis of the connecting sleeve or of the inserted connecting piece in the operating position and in the main direction of movement of the device housing is directed upwards at an acute angle and is perpendicular to a correspondingly inclined front side of the device housing. This arrangement of the electromechanical rotary coupling on the device housing does not restrict the working area for the suction hose around the device housing, since when the suction hose is guided to the side, a force component occurs which causes the rotating coupling to rotate. As a result, a second rotary coupling at the other end of the suction hose can be omitted without twisting with loops To have to accept suction hose when using. Other advantageous developments are specified in the remaining claims.

Die Erfindung ist nachfolgend anhand der Zeichnungen eines Ausführungsbeispiels näher erläutert.The invention is explained in more detail below with reference to the drawings of an exemplary embodiment.

Es zeigt:

  • Fig. 1 einen Staubsauger in der Betriebslage mit geneigt zur Hauptbewegungsrichtung angeordnetem Anschlußstutzen eines Saugschlauches,
  • Fig. 2 eine Prinzipdarstellung einer elektromechanischen Drehkupplung im Bereich des Anschlußstutzens und des Gerätegehäuses.
It shows:
  • 1 is a vacuum cleaner in the operating position with a connecting piece of a suction hose arranged at an angle to the main direction of movement,
  • Fig. 2 is a schematic diagram of an electromechanical rotary coupling in the area of the connection piece and the device housing.

Ein Gerätegehäuse (1) eines Staubsaugers weist einen lösbar oder schwenkbar daran angelenkten, in der Betrieblage oben liegenden Staubraumdeckel (2) auf. Der Staubraumdeckel (2) verschließt einen Staubaufnahmeraum, in dem ein Staubfilter angeordnet ist. Der Staubraumdeckel (2) besitzt eine Frontwand (3), die in die durch den Pfeil (4) angedeuteten Hauptbewegungsrichtung weist und in der dargestellten Betriebslage unter einem Winkel von etwa 45° nach hinten geneigt ist. In der Frontwand (3) befindet sich eine hohlzylindrische Anschlußhülse (5), deren Längsachse senkrecht zur Frontwand (3) steht und daher in der Betriebslage und in der Hauptbewegungsrichtung (4) des Gerätegehäuses (1, 2) unter einem spitzen Winkel nach oben gerichtet ist. An der innenliegenden Mantelfläche der Anschlußhülse (5) befinden sich in Achsrichtung nebeneinander und mit Abstand angeordnete Gegenkontakte (7), die im Bereich der Anschlußhülse (5) so festgelegt sind, daß sei unter elastischer Vorspannung zur Längsachse hingedrückt werden, die Mantelfläche (6) jedoch nur geringfügig überragen können. Vorzugsweise sind die Gegenkontakte an ihren der Mantelfläche (6) benachbarten Seite in der in Figur 2 dargestellten Querschnittsfläche so gewölbt, daß nur ihre mittleren Partien die Mantelfläche (6) überragen können und ihre Randzonen verdeckt in der Wandstärke der Anschlußhülse (5) verbleiben.A device housing (1) of a vacuum cleaner has a dust chamber cover (2) which is attached to it in a detachable or pivotable manner and is located in the operating position at the top. The dust chamber cover (2) closes a dust collecting chamber in which a dust filter is arranged. The dust chamber cover (2) has a front wall (3) which points in the main direction of movement indicated by the arrow (4) and is inclined at an angle of approximately 45 ° to the rear in the operating position shown. In the front wall (3) there is a hollow cylindrical connecting sleeve (5), the longitudinal axis of which is perpendicular to the front wall (3) and therefore in the operating position and in the main direction of movement (4) of the device housing (1, 2) directed upwards at an acute angle is. On the inner lateral surface of the connecting sleeve (5) there are juxtaposed and spaced counter contacts (7) in the axial direction, which are fixed in the area of the connecting sleeve (5) such that the elastic surface is pressed against the longitudinal axis, the lateral surface (6) but can only tower slightly. The counter contacts are preferably on their lateral surface (6) adjacent side in the cross-sectional area shown in Figure 2 so curved that only their central parts can protrude beyond the lateral surface (6) and their edge zones remain hidden in the wall thickness of the connecting sleeve (5).

In die Anschlußhülse (5) ist axial ein Anschlußstutzen (8) eingesetzt, dessen außenliegende Mantelfläche im Bereich der Anschlußhülse einen dem Innendurchmesser der Anschlußhülse (5) angepaßten Durchmesser aufweist. In die außenliegende Mantelfläche des Anschlußstutzens (8) sind Schliefringflächen (9) bündig eingelassen, so daß ihr Umfang mit der Mantelfläche des Anschlußstutzens in einer Zylinderebene liegt. Die Schlieifringflächen (9) werden durch Rohrabschnitte aus elektrisch leitendem Material gebildet und stehen in der gezeigten Arbeitsstellung in elektrisch leitendem Kontakt mit den Gegenkontakten (7). Mit dem Anschlußstutzen (8) is ein Saugschlauch (10) verbunden, bei dem beispielsweise spiralig in die Mantelfläche eingearbeitete elektrische Leiter (11) mit den Schleifringkontakten (9) elektrisch verbunden sind. Über die an eine Steuerschaltung über Anschlußleitungen (12) angeschlossene Gegenkontakte (7) können somit elektrische Signale bei eingestrecktem Anschlußstutzen (8) auf die Schleifringkontakte (9) übertragen werden, von welchen die Steuersignale über die elektrischen Leiter (11) des Saugschlauches (10) zu Bedienungselementen an einem am anderen Ende des Saugschlauches (10) angeordneten Griffhandstück geführt werden. Über die elektro-mechanische Drehkupplung (5, 7, 9) kann jedoch auch eine Versorgungsspannung beispielsweise für eine an den Saugschlauch angeschlossene Elektrosaugbürste geführt werden.A connecting piece (8) is inserted axially into the connecting sleeve (5), the outer lateral surface of which in the area of the connecting sleeve has a diameter adapted to the inside diameter of the connecting sleeve (5). In the outer lateral surface of the connecting piece (8) closing ring surfaces (9) are embedded so that their circumference lies with the lateral surface of the connecting piece in a cylinder plane. The locking ring surfaces (9) are formed by pipe sections made of electrically conductive material and are in electrically conductive contact with the counter contacts (7) in the working position shown. A suction hose (10) is connected to the connecting piece (8), in which, for example, electrical conductors (11) worked spirally into the lateral surface are electrically connected to the slip ring contacts (9). Via the mating contacts (7) connected to a control circuit via connecting lines (12), electrical signals can thus be transmitted to the slip ring contacts (9) when the connecting piece (8) is inserted, from which the control signals via the electrical conductors (11) of the suction hose (10). to control elements on a handle handpiece arranged at the other end of the suction hose (10). However, a supply voltage, for example for an electric suction brush connected to the suction hose, can also be conducted via the electro-mechanical rotary coupling (5, 7, 9).

Infolge der nach oben geneigten Anordnung des drehbar und herausziebar in der Anschlußhülse (5) gelagerten Anschlußstutzens (8) wird außerdem erreicht,
daß bei der Handhabung nur die am Gerätegehäuse (1) vorgesehene und nicht auch am anderen Ende des Saugschlauchs eine Drehkupplung (5, 7, 8, 9) erforderlich ist, weil durch die Neigung der Drehkupplung bei einer Bewegung des Saugschlauches um 360 ° um das Gerätegehäuse (1) herum eine selbstätige Drehung der Drehkupplung eintritt. Durch die Stromführung wird somit weder der Arbeitsbereich des Gerätes eingeschränkt noch eine komplizierte Stromführung vom Staubraumdeckel (2) bzw. vom Gerätegehäuse (1) zum Sauggebläse des Staubsaugers erforderlich.As a result of the upward inclined arrangement of the connecting piece (8), which is rotatably and extractably mounted in the connecting sleeve (5),
that when handling only the provided on the device housing (1) and not also at the other end of the suction hose, a rotary coupling (5, 7, 8, 9) is required because by the inclination of the rotary coupling when the suction hose is moved by 360 ° around it Around the device housing (1) an automatic rotation of the rotary coupling occurs. Through the Current flow is thus neither restricted to the working area of the device nor a complicated current flow from the dust compartment cover (2) or from the device housing (1) to the suction fan of the vacuum cleaner.

Claims (4)

1. Staubsauger mit einem Saugschlauch, der mit einem Anschlußstutzen drehbar in eine Anschlußhülse am Gerätegehäuse einsetzbar ist, wobei am Anschlußstutzen wenigstens eine elektrische Schleifringfläche und an der Anschlußhülse wenigstens ein Gegenkontakt angeordnet ist, der die Schleifringfläche kontaktiert, wenn der Anschlußstutzen in die Anschlußhülse eingesetzt ist, dadurch gekennzeichnet, daß die Schleifringfläche (9) auf der außenliegenden Mantelfläche des Anschlußstutzens (8) und der Gegenkontakt (7) an der innenliegenden Mantelfläche (6) der Anschlußhülse (5) angeordnet ist.1. Vacuum cleaner with a suction hose which can be rotatably inserted with a connecting piece into a connecting sleeve on the device housing, at least one electrical slip ring surface being arranged on the connecting piece and at least one mating contact being arranged on the connecting sleeve, which contacts the slip ring surface when the connecting piece is inserted into the connecting sleeve , characterized in that the slip ring surface (9) is arranged on the outer lateral surface of the connecting piece (8) and the mating contact (7) on the inner lateral surface (6) of the connecting sleeve (5). 2. Staubsauger nach Anspruch 1, dadurch gekennzeichnet, daß drei Schliefringflächen (9) und drei Gegenkontakte (7) in Achsrichtung des Anschlußstutzens (8) bzw. der Anschlußhülse (5) mit axialem Abstand voneinander angeordnet sind.2. Vacuum cleaner according to claim 1, characterized in that three closing ring surfaces (9) and three mating contacts (7) in the axial direction of the connecting piece (8) or the connecting sleeve (5) are arranged at an axial distance from one another. 3. Staubsauger nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Achse der Anschlußhülse (5) bzw. des Anschlußstutzens (8) in der Betriebslage und in der Hauptbewegungsrichtung (4) des Gerätegehäuses (1) unter einem spitzen Winkel nach oben gerichtet ist.3. Vacuum cleaner according to claim 1 or 2, characterized in that the axis of the connecting sleeve (5) or the connecting piece (8) in the operating position and in the main direction of movement (4) of the device housing (1) is directed upwards at an acute angle . 4. Staubsauger nach Anspruch 3, dadurch gekennzeichnet, daß der Winkel etwa 45 ° beträgt.4. Vacuum cleaner according to claim 3, characterized in that the angle is approximately 45 °.
EP88104714A 1987-04-25 1988-03-24 Vacuum cleaner with a suction tube Withdrawn EP0288742A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873713885 DE3713885A1 (en) 1987-04-25 1987-04-25 VACUUM CLEANER WITH A SUCTION HOSE
DE3713885 1987-04-25

Publications (2)

Publication Number Publication Date
EP0288742A2 true EP0288742A2 (en) 1988-11-02
EP0288742A3 EP0288742A3 (en) 1989-04-26

Family

ID=6326295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88104714A Withdrawn EP0288742A3 (en) 1987-04-25 1988-03-24 Vacuum cleaner with a suction tube

Country Status (2)

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EP (1) EP0288742A3 (en)
DE (1) DE3713885A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499896A1 (en) * 1991-02-20 1992-08-26 Siemens Aktiengesellschaft Rotatable coupling for latching a suction hose having electric conductors to a suction cleaner
EP0884019A1 (en) * 1997-06-09 1998-12-16 Truplast Kunststofftechnik Gmbh Vacuum cleaner pipe with electrical conductors
US6015298A (en) * 1998-06-09 2000-01-18 Truplast Konststofftechnik Gmbh Vacuum-cleaner hose with electrical conductors
EP1419725A2 (en) * 2002-11-12 2004-05-19 Izumi Products Company Electric vacuum cleaner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1703053A1 (en) * 1965-06-28 1971-12-23 Cons Foods Corp Hose connection coupling for vacuum cleaner
GB1258816A (en) * 1968-05-20 1971-12-30
GB1440866A (en) * 1973-06-04 1976-06-30 Dayco Corp Releasable hose connector assembly
DE1728486B2 (en) * 1967-09-22 1976-11-25 Ausscheidung aus: 17 28 287 Consolidated Foods Corp., Chicago, 111. (V.St.A.) ROTATABLE COUPLING FOR CONNECTING A VACUUM CLEANER HOSE AND AN ELECTRICAL CABLE GUIDED BY THIS TO A VACUUM CLEANER HOUSING
DE8625098U1 (en) * 1986-09-19 1986-10-30 Plastiflex Europe N.V., Herentals Coupling device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1703053A1 (en) * 1965-06-28 1971-12-23 Cons Foods Corp Hose connection coupling for vacuum cleaner
DE1728486B2 (en) * 1967-09-22 1976-11-25 Ausscheidung aus: 17 28 287 Consolidated Foods Corp., Chicago, 111. (V.St.A.) ROTATABLE COUPLING FOR CONNECTING A VACUUM CLEANER HOSE AND AN ELECTRICAL CABLE GUIDED BY THIS TO A VACUUM CLEANER HOUSING
GB1258816A (en) * 1968-05-20 1971-12-30
GB1440866A (en) * 1973-06-04 1976-06-30 Dayco Corp Releasable hose connector assembly
DE8625098U1 (en) * 1986-09-19 1986-10-30 Plastiflex Europe N.V., Herentals Coupling device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499896A1 (en) * 1991-02-20 1992-08-26 Siemens Aktiengesellschaft Rotatable coupling for latching a suction hose having electric conductors to a suction cleaner
EP0884019A1 (en) * 1997-06-09 1998-12-16 Truplast Kunststofftechnik Gmbh Vacuum cleaner pipe with electrical conductors
US6015298A (en) * 1998-06-09 2000-01-18 Truplast Konststofftechnik Gmbh Vacuum-cleaner hose with electrical conductors
EP1419725A2 (en) * 2002-11-12 2004-05-19 Izumi Products Company Electric vacuum cleaner
EP1419725A3 (en) * 2002-11-12 2005-08-24 Izumi Products Company Electric vacuum cleaner

Also Published As

Publication number Publication date
DE3713885A1 (en) 1988-11-17
EP0288742A3 (en) 1989-04-26

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