EP0884019B1 - Vacuum cleaner pipe with electrical conductors - Google Patents

Vacuum cleaner pipe with electrical conductors Download PDF

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Publication number
EP0884019B1
EP0884019B1 EP98108218A EP98108218A EP0884019B1 EP 0884019 B1 EP0884019 B1 EP 0884019B1 EP 98108218 A EP98108218 A EP 98108218A EP 98108218 A EP98108218 A EP 98108218A EP 0884019 B1 EP0884019 B1 EP 0884019B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
bushing
hose
slit
vacuum cleaner
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
EP98108218A
Other languages
German (de)
French (fr)
Other versions
EP0884019A1 (en
Inventor
Georg Linhart
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.)
Truplast Kunststofftechnik GmbH
Original Assignee
Truplast Kunststofftechnik 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 Truplast Kunststofftechnik GmbH filed Critical Truplast Kunststofftechnik GmbH
Publication of EP0884019A1 publication Critical patent/EP0884019A1/en
Application granted granted Critical
Publication of EP0884019B1 publication Critical patent/EP0884019B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • 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 hose with electrical conductors according to the preamble of claim 1.
  • the carrier is in this case introduced by a spraying process thermoplastic material connected to the hose.
  • the end bush is fixed in the hose. That for fixing the carrier on the hose and material used to fasten the end bushing in the hose is either the same or similar to the hose material, so that those made with it Connections serve their purpose. The connections cannot be non-destructive be solved.
  • the spraying process is complex, requires specialists and special Implementation facilities.
  • the object of the invention is the vacuum cleaner hose according to the preamble of Claim 1 form so that for the connection of the carrier and the end bush a spraying process with the hose is not necessary.
  • the connection of the carrier and the end bushing with the hose should be designed so that it is taught by Forces are deployed without great aids and can be released again if necessary can.
  • the object is achieved by the in the characterizing part of Claim 1 specified training solved.
  • 1 is an existing one made of a soft thermoplastic Designated hose, the outer helical troughs 1a and Has wave crests 1b.
  • hose 1 On the hose 1 is made of a harder plastic than the hose Carrier for electrical slip rings 3 attached. There is one on each of the slip rings 3 electrical conductor 4 connected. The conductors 4 are in the hose 1 on one arranged below described in more detail.
  • the carrier is made up of two parts. One part is a socket ring 2a, the with is equipped with a slip ring 3 and has an all-round closed jacket. The other part consists of a sleeve 2b arranged in front of the bushing ring 2a is equipped with two further slip rings 3. The sleeve 2b has a continuous Axial slot 6 on.
  • At least one thread 7 is formed on the inner lateral surface of the sleeve 2b, which has a mating thread for the wave troughs 1a and wave crests 1b of the hose 1 forms.
  • the sleeve 2b is screwed onto the hose 1 after the sleeve ring 2a is pushed onto the hose 1.
  • the ends of the electrical conductors 4 are arranged in a tube 1 Protective cover 8 first in the axial slot 6 of the sleeve 2b and then to the assigned slip rings 3, which are exposed in the axial slot 6 inside.
  • the bushing ring 2a is positively connected to the sleeve 2b.
  • For positive Connection engages a circumferential outer bead formed on the socket ring 2a 2c into a corresponding inner groove 2d of the sleeve 2b (FIG. 1).
  • FIG. 1 As a further embodiment of the invention is in the end bushing 5 from its rear End extending slot 5b extending to the bead ring 5a (Fig. 1) intended.
  • the flanks of the slot 5b go into a tubular projection 5d over, which is provided for receiving the associated end of the protective cover 8.
  • the projection 5d is open at the open end of the slot 5b and at the opposite Closed at the end.
  • the slot 5b is preferred in its intended position aligned so that it is aligned with the axial slot 6 of the sleeve 2b. In this way there is a bending path for the electrical conductors 4, as can be seen from FIG. 1.
  • an expedient further development of the subject matter of the invention consists in that a molded joint 2f, the sleeve 2b in two identical shell halves 2g divides, the free edges of which are the flanks of the axial slot 6.
  • This is the sleeve 2b, as shown in Fig. 4, in an unfolded form, for which a simple slide-free shape is sufficient.
  • the two shell halves 2g against each other around the joint 2f to move until the shape shown in Fig. 3 results.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Non-Insulated Conductors (AREA)

Description

Die Erfindung bezieht sich auf einen Staubsaugerschlauch mit elektrischen Leitern nach dem Oberbegriff des Anspruches 1.The invention relates to a vacuum cleaner hose with electrical conductors according to the preamble of claim 1.

Es ist bereits ein Staubsaugerschlauch der im Oberbegriff des Anspruches 1 genannten Art vorgeschlagen worden. Der Träger ist hierbei durch ein im Spritzvorgang eingebrachtes thermoplastisches Material mit dem Schlauch verbunden. Auf die gleiche Weise ist die Endbuchse im Schlauch befestigt. Das zur Befestigung des Trägers auf dem Schlauch und zur Befestigung der Endbuchse im Schlauch verwendete Material ist entweder dem Schlauchmaterial gleich oder ähnlich, so daß die mit ihm hergestellten Verbindungen ihren Zweck erfüllen. Die Verbindungen können nicht zerstörungsfrei gelöst werden. Der Spritzvorgang ist aufwendig, erfordert Fachkräfte und besondere Einrichtungen zu seiner Durchführung.It is already a vacuum cleaner hose mentioned in the preamble of claim 1 Kind have been suggested. The carrier is in this case introduced by a spraying process thermoplastic material connected to the hose. The same The end bush is fixed in the hose. That for fixing the carrier on the hose and material used to fasten the end bushing in the hose is either the same or similar to the hose material, so that those made with it Connections serve their purpose. The connections cannot be non-destructive be solved. The spraying process is complex, requires specialists and special Implementation facilities.

Aufgabe der Erfindung ist es, den Staubsaugerschlauch nach dem Oberbegriff des Anspruches 1 so auszubilden, daß für die Verbindung des Trägers und der Endbuchse mit dem Schlauch ein Spritzvorgang entbehrlich ist. Die Verbindung des Trägers und der Endbuchse mit dem Schlauch soll so ausgebildet sein, daß sie durch angelernte Kräfte ohne große Hilfsmittel vollzogen werden und bei Bedarf wieder gelöst werden kann.The object of the invention is the vacuum cleaner hose according to the preamble of Claim 1 form so that for the connection of the carrier and the end bush a spraying process with the hose is not necessary. The connection of the carrier and the end bushing with the hose should be designed so that it is taught by Forces are deployed without great aids and can be released again if necessary can.

Die gestellte Aufgabe wird erfindungsgemäß durch die im kennzeichnenden Teil des Anspruches 1 angegebene Ausbildung gelöst. The object is achieved by the in the characterizing part of Claim 1 specified training solved.

Zweckmäßige Aus- und Weiterbildungen des Erfindungsgegenstandes sind in den Ansprüchen 2 bis 4 angegeben.Appropriate training and further developments of the subject matter of the invention are in the claims 2 to 4 specified.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung rein schematisch dargestellt.An embodiment of the invention is shown purely schematically in the drawing.

Es zeigen:

  • Fig. 1 einen Aufriß, teilweise im Schnitt.
  • Fig. 2 einen Aufriß, in dem der Verlauf des Schnittes in Fig. 1 angegeben ist.
  • Fig. 3 eine Stirnansicht eines Bauteils in seiner Bestimmungsform.
  • Fig. 4 eine Stirnansicht des Bauteils nach Fig. 3 in seiner Herstellungsform.
    • Show it:
  • Fig. 1 is an elevation, partly in section.
  • Fig. 2 is an elevation in which the course of the section in Fig. 1 is given.
  • Fig. 3 is an end view of a component in its intended form.
  • Fig. 4 is an end view of the component of FIG. 3 in its manufacturing form.

    • In der Zeichnung ist mit 1 ein aus einem weichen thermoplastischen Kunststoff bestehender Schlauch bezeichnet, der außen wendelförmig verlaufende Wellentäler 1a und Wellenberge 1b aufweist.In the drawing, 1 is an existing one made of a soft thermoplastic Designated hose, the outer helical troughs 1a and Has wave crests 1b.

    Auf dem Schlauch 1 ist ein aus härterem Kunststoff als der Schlauch bestehender Träger für elektrische Schleifringe 3 befestigt. An den Schleifringen 3 ist jeweils ein elektrischer Leiter 4 angeschlossen. Die Leiter 4 sind im Schlauch 1 auf eine weiter unten näher beschriebene Weise angeordnet.On the hose 1 is made of a harder plastic than the hose Carrier for electrical slip rings 3 attached. There is one on each of the slip rings 3 electrical conductor 4 connected. The conductors 4 are in the hose 1 on one arranged below described in more detail.

    In den Schlauch 1 greift eine Endbuchse 5 ein, deren Bestimmungslage gegen einfache Herausnahme gesichert ist.In the hose 1 engages an end bushing 5, the determination position against simple Removal is secured.

    Der Träger ist aus zwei Teilen gebildet. Der eine Teil ist ein Buchsenring 2a, der mit einem Schleifring 3 bestückt ist und einen ringsum geschlossenen Mantel aufweist. Der andere Teil besteht aus einer vor dem Buchsenring 2a angeordneten Hülse 2b, die mit zwei weiteren Schleifringen 3 bestückt ist. Die Hülse 2b weist einen durchgehenden Axialschlitz 6 auf.The carrier is made up of two parts. One part is a socket ring 2a, the with is equipped with a slip ring 3 and has an all-round closed jacket. The other part consists of a sleeve 2b arranged in front of the bushing ring 2a is equipped with two further slip rings 3. The sleeve 2b has a continuous Axial slot 6 on.

    An die innere Mantelfläche der Hülse 2b ist mindestens ein Gewindegang 7 angeformt, der ein Gegengewinde für die Wellentäler 1a und Wellenberge 1b des Schlauches 1 bildet. Die Hülse 2b wird auf den Schlauch 1 aufgeschraubt, nachdem der Buchsenring 2a auf den Schlauch 1 aufgeschoben ist. At least one thread 7 is formed on the inner lateral surface of the sleeve 2b, which has a mating thread for the wave troughs 1a and wave crests 1b of the hose 1 forms. The sleeve 2b is screwed onto the hose 1 after the sleeve ring 2a is pushed onto the hose 1.

    Die Enden der elektrischen Leiter 4 sind aus einer im Schlauch 1 angeordneten Schutzhülle 8 heraus zunächst in den Axialschlitz 6 der Hülse 2b und sodann zu den ihnen zugeordneten Schleifringen 3 geführt, die im Axialschlitz 6 innen freiliegen. Der Buchsenring 2a ist mit der Hülse 2b formschlüssig verbunden. Zur formschlüssigen Verbindung greift ein am Buchsenring 2a angeformter, umlaufender Außenwulst 2c in eine entsprechende Innennut 2d der Hülse 2b ein (Fig. 1).The ends of the electrical conductors 4 are arranged in a tube 1 Protective cover 8 first in the axial slot 6 of the sleeve 2b and then to the assigned slip rings 3, which are exposed in the axial slot 6 inside. The bushing ring 2a is positively connected to the sleeve 2b. For positive Connection engages a circumferential outer bead formed on the socket ring 2a 2c into a corresponding inner groove 2d of the sleeve 2b (FIG. 1).

    Ein an der äußeren Mantelfläche der Endbuchse 5 angeformter Ringwulst 5a greift in eine innere Nut 2e der Hülse 2b ein (Fig. 1).An annular bead 5a formed on the outer lateral surface of the end bush 5 engages in an inner groove 2e of the sleeve 2b (Fig. 1).

    Durch den Eingriff des Außenwulstes 2c in die Innennut 2d und den Eingriff des Ringwulstes 5a in die Innennut 2d der Hülse 2b, sind der Buchsenring 2a und die Endbuchse 5 mit der Hülse 2b formschlüssig vereinigt. Auch die Verbindung der Hülse 2b mit dem Schlauch 1 ist infolge des Schraubeingriffes des Gewindeganges 7 in den Schlauch 1 formschlüssig, so daß die Verbindungen insgesamt rein formschlüssig, jedoch bei Bedarf wieder lösbar sind.By the engagement of the outer bead 2c in the inner groove 2d and the engagement of the annular bead 5a into the inner groove 2d of the sleeve 2b, are the sleeve ring 2a and the end sleeve 5 positively combined with the sleeve 2b. Also the connection of the sleeve 2b the hose 1 is due to the screw engagement of the thread 7 in the Hose 1 form-fitting, so that the connections overall purely form-fitting, however are detachable if necessary.

    Als weitere erfindungsgemäße Ausbildung ist in der Endbuchse 5 ein von ihrem hinteren Ende ausgehender und sich bis zum Wulstring 5a erstreckender Schlitz 5b (Fig. 1) vorgesehen. Die Flanken des Schlitzes 5b gehen in eine rohrartige Anformung 5d über, die zur Aufnahme des zugeordneten Endes der Schutzhülle 8 vorgesehen ist. Die Anformung 5d ist zum offenen Ende des Schlitzes 5b offen und am entgegengesetzten Ende geschlossen. Der Schlitz 5b ist in seiner Bestimmungslage vorzugsweise so ausgerichtet, daß er mit dem Axalschlitz 6 der Hülse 2b fluchtet. Auf diese Weise ergibt sich ein Veriegungspfad für die elektrischen Leiter 4, wie aus Fig. 1 ersichtlich.As a further embodiment of the invention is in the end bushing 5 from its rear End extending slot 5b extending to the bead ring 5a (Fig. 1) intended. The flanks of the slot 5b go into a tubular projection 5d over, which is provided for receiving the associated end of the protective cover 8. The projection 5d is open at the open end of the slot 5b and at the opposite Closed at the end. The slot 5b is preferred in its intended position aligned so that it is aligned with the axial slot 6 of the sleeve 2b. In this way there is a bending path for the electrical conductors 4, as can be seen from FIG. 1.

    Ferner besteht eine zweckmäßige Weiterbildung des Erfindungsgegenstandes darin, daß eine angeformte Gelenkstelle 2f die Hülse 2b in zwei gleiche Schalenhälften 2g teilt, deren freie Ränder die Flanken des Axialschlitzes 6 sind. Hierdurch ist die Hülse 2b, wie in Fig. 4 dargestellt, in aufgeklappter Form herzustellen, wofür eine einfache schieberfreie Form genügt. Um die Bestimmungsform der Hülse 2b zu erreichen, ist es lediglich erforderlich, die beiden Schalenhälften 2g um die Gelenkstelle 2f gegeneinander zu bewegen, bis sich die in Fig. 3 gezeigte Form ergibt.Furthermore, an expedient further development of the subject matter of the invention consists in that a molded joint 2f, the sleeve 2b in two identical shell halves 2g divides, the free edges of which are the flanks of the axial slot 6. This is the sleeve 2b, as shown in Fig. 4, in an unfolded form, for which a simple slide-free shape is sufficient. To achieve the intended shape of the sleeve 2b, it is only required, the two shell halves 2g against each other around the joint 2f to move until the shape shown in Fig. 3 results.

    Claims (4)

    1. Vacuum cleaner hose with electrical conductors, whereby
      a) at one end of the hose of soft thermoplastic material, having corrugation peaks and corrugation troughs extending externally in spiral form, there is attached a carrier, of harder material than the hose material, for electrical slip rings to which respective ones of the electrical conductors are connected, and whereby,
      b) an end bushing is plugged into the end of the hose having the carrier, which bushing is connected with the carrier and is of the same material as the carrier,
      characterised in that,
      c) the carrier consists of a bushing ring (2a), equipped with at least one slip ring (3), and a sleeve (2b) arranged before the bushing ring (2a), and in that the sleeve (2b) has a through-going axial slit (6), carries two further slip rings (3) and is connected on the one hand form-locking with the bushing ring (2a) and on the other hand form-locking with the end bushing (5);
      d) there is formed on the inner envelope surface of the sleeve (2b) at least one thread (7) which constitutes a counter-thread for the corrugation troughs (1a) and corrugation peaks (1b) of the hose (1);
      e) the ends of the electrical conductor (4) are guided out of a protective cover (8) arranged in the hose (1), initially into the axial slit (6) of the sleeve (2b) and then to the slip rings (3) associated therewith, exposed inwardly in the axial slit (6).
    2. Vacuum cleaner hose according to claim 1,
      characterised in that,
      for the form-locking connection of the sleeve (2b) with the bushing ring (2a) and the end bushing (5), an exterior protrusion (2c) formed on the bushing ring (2a) engages into a rearward internal groove (2d) of the sleeve (2b) and an annular projection (5a) formed on the outer envelope surface of the end bushing (5) engages into a forward internal groove (2e) of the sleeve (2b).
    3. Vacuum cleaner hose according to claims 1 and 2,
      characterised in that,
      the end bushing (5) has a slit (5b) starting from its rearward end and extending up to the annular projection (5a), the flanks of which slit transition into a tube-like formed part (5d) constituted for receiving the associated end of the protection sleeve (8), which part is open towards the open end of the slit (5b) and is closed at the opposite end, and in that the slit (5b) aligns with the axial slit (6) of the sleeve (2b) in its intended disposition.
    4. Vacuum cleaner hose according to claims 1 to 3,
      characterised in that,
      a formed joint site (2f) divides the sleeve (2b) into two similar shell halves (2g), the free edges of which joint site form the flanks of the axial slit (6).
    EP98108218A 1997-06-09 1998-05-06 Vacuum cleaner pipe with electrical conductors Expired - Lifetime EP0884019B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE29709996U DE29709996U1 (en) 1997-06-09 1997-06-09 Vacuum cleaner hose with electrical conductors
    DE29709996U 1997-06-09

    Publications (2)

    Publication Number Publication Date
    EP0884019A1 EP0884019A1 (en) 1998-12-16
    EP0884019B1 true EP0884019B1 (en) 1999-12-22

    Family

    ID=8041351

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98108218A Expired - Lifetime EP0884019B1 (en) 1997-06-09 1998-05-06 Vacuum cleaner pipe with electrical conductors

    Country Status (3)

    Country Link
    EP (1) EP0884019B1 (en)
    DE (2) DE29709996U1 (en)
    ES (1) ES2140984T3 (en)

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102007036341A1 (en) 2007-08-02 2009-02-05 Truplast Kunststofftechnik Gmbh Handle assembly on a vacuum cleaner hose
    WO2023007001A1 (en) 2021-07-29 2023-02-02 Truplast Kunststofftechnik Gmbh Flexible hose, in particular a vacuum cleaner hose, and method for producing same

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE29912640U1 (en) * 1999-07-26 1999-10-28 Truplast Kunststofftechnik Vacuum cleaner hose with electrical conductors

    Family Cites Families (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4345805A (en) * 1979-09-17 1982-08-24 Plastiflex Company International Self-sealing vacuum hose swivel fitting
    DE3713885A1 (en) * 1987-04-25 1988-11-17 Licentia Gmbh VACUUM CLEANER WITH A SUCTION HOSE
    US5389004A (en) * 1993-04-23 1995-02-14 Electrolux Corporation Handle and wand system for vacuum cleaner
    JPH09512197A (en) * 1995-02-16 1997-12-09 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ Joint having two relative rotatable and electrically connectable joint members and vacuum cleaner provided with such joint

    Cited By (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102007036341A1 (en) 2007-08-02 2009-02-05 Truplast Kunststofftechnik Gmbh Handle assembly on a vacuum cleaner hose
    EP2025280A2 (en) 2007-08-02 2009-02-18 Truplast Kunststofftechnik Gmbh Gripping device on a vacuum cleaner hose
    DE102007036341B4 (en) * 2007-08-02 2012-01-19 Truplast Kunststofftechnik Gmbh Handle assembly on a vacuum cleaner hose
    WO2023007001A1 (en) 2021-07-29 2023-02-02 Truplast Kunststofftechnik Gmbh Flexible hose, in particular a vacuum cleaner hose, and method for producing same
    DE102021003907A1 (en) 2021-07-29 2023-02-02 Truplast Kunststofftechnik Gesellschaft mit beschränkter Haftung FLEXIBLE HOSE, ESPECIALLY VACUUM CLEANER HOSE, AND METHOD OF PRODUCTION THEREOF

    Also Published As

    Publication number Publication date
    EP0884019A1 (en) 1998-12-16
    DE29709996U1 (en) 1997-08-21
    DE59800071D1 (en) 2000-01-27
    ES2140984T3 (en) 2000-03-01

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