EP0664988B1 - Tuyau téléscopique d'aspirateur avec conducteur électrique en spirale - Google Patents

Tuyau téléscopique d'aspirateur avec conducteur électrique en spirale Download PDF

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Publication number
EP0664988B1
EP0664988B1 EP94116619A EP94116619A EP0664988B1 EP 0664988 B1 EP0664988 B1 EP 0664988B1 EP 94116619 A EP94116619 A EP 94116619A EP 94116619 A EP94116619 A EP 94116619A EP 0664988 B1 EP0664988 B1 EP 0664988B1
Authority
EP
European Patent Office
Prior art keywords
tube
conductor
outer tube
section
suction tube
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
EP94116619A
Other languages
German (de)
English (en)
Other versions
EP0664988A1 (fr
Inventor
Gerhard Dipl.-Ing. Stettner
Achim Dipl.-Ing. Breiter
Dieter Wölfel
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.)
AEG Hausgeraete GmbH
Original Assignee
AEG Hausgeraete 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 AEG Hausgeraete GmbH filed Critical AEG Hausgeraete GmbH
Publication of EP0664988A1 publication Critical patent/EP0664988A1/fr
Application granted granted Critical
Publication of EP0664988B1 publication Critical patent/EP0664988B1/fr
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
    • 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
    • A47L9/244—Hose or pipe couplings for telescopic or extensible hoses or pipes

Definitions

  • the invention relates to an intake manifold according to the preamble of the first claim.
  • the invention is based, with one Intake pipe according to the preamble of the first claim To take measures by which a free mobility of the coiled section of the electrical line is achieved.
  • EP-A-0 395 908 shows a singing tube which consists of telescopic Share exists and includes an electrical line that a has expandable spiral cable in one of the tubes.
  • the spiral line mechanically so pretension that they are at rest in a stretched Starting position passes and so with pipes pulled out it is compressed that the individual turns close together come to rest.
  • a slide tab be in a radial direction corresponding to the cavity externally directed and running in the pipe longitudinal axis Shape of the outer tube engages tightly, like this one inner end portion of the inner tube at its remaining circumference sealing on the inner jacket of the outer tube is present.
  • the end section encompassing the inner tube of the outer tube lies sealingly on the outer circumference of the Raw inside, including the one designed as a groove Forming is closed on the end, so that also in this end section an all-round seal between the tubes.
  • the spiral line required groove can also be called radial internal molding in the jacket of the inner tube be relocated. Then one intervenes in an analogous manner Slide tab of the outer tube into this groove for sealing a, if not the seal in the area of immersed end portion of the inner tube is sufficient.
  • cavity can also be created by embossing on the inner tube be shown on the outer tube. Enough deformability the tube is not for the representation of each necessary groove, then the outer tube can also with be provided with a longitudinal slot, which by means of a arched channel profile piece is completed, which in Area of the breakthrough on the pipe in question, for example can be fixed by welding.
  • the channel profile by means of U-shaped side grooves to fix the relevant diaphragm walls.
  • the plastic profile piece it is advisable to make the plastic profile piece produce that as compared to the spiral line electrical insulator is used if the spiral cable in Operation should suffer insulation damage.
  • the spiral line can be connected to a preferably integrally connected additional electrical line section connected by the overlapped end section of the inner tube on the inner tube in the area of the free end of the inner tube to one there provided connection point leads.
  • From the second end of the Spiral line also preferably leads in one piece connected further electrical line section to the free end of the outer tube and to one there provided second junction.
  • the Pipe sections can be in the inner tube as in the Outer tube adapted beads are pressed in as provide mechanical protection for these line sections.
  • An inwardly embossed bead in the outer tube can record another line section and at the same time in one intervene adapted longitudinal bead of the inner tube and so as Serve against rotation between the two pipes.
  • the Spiral cable also made of flat and zigzag shaped contiguous spiral webs exist that are curved in particular in accordance with the pipe bend, so that the cavity is correspondingly low in the radial direction can be formed and the bead (s) correspondingly flat can be trained.
  • the representation of the cavity can then with less deformation work of the or of the pipes.
  • the groove of the outer tube can be structurally combined so that a closed structure is achieved, which may be necessary electrical connection connections between the Take up the spiral line and the further line section can.
  • the invention is based on the schematic diagram of an embodiment explained in more detail.
  • a telescopic suction pipe for vacuum cleaners to which electrically operated additional devices are to be connected, has an inner tube 1 and a larger in diameter Outer tube 2, the inner tube 1 in the axial direction longitudinally displaceable in the outer tube 2 via interposed Ring seals 3 is mounted. Between the inner tube 1 and the outer tube 2 is formed a cavity 4 in which a preferably two-core, in circular turns coiled electrical line is housed whose Spiral axis runs parallel to the pipe longitudinal axis.
  • the Cavity 4 can with an undeformed inner tube 1 by a radially outward, over the displacement of the Inner tube and the length of the compressed spiral line 5 reaching, radially outward and into the mantle of the outer tube 2 embossed groove 6 are formed, the Cross section sufficient to accommodate the helical cable is large, so that the spiral line 5 is free can be stretched and compressed.
  • the free interior of the outer tube is at the outer tube 2 overlapped end section 7 of the inner tube a radially in groove 6 engaging, possibly detachable, slide tab 8 scheduled that a tight conclusion on the free Travel within the groove 6 guaranteed.
  • a first end 11 of the helical line 5 is via clamping or Solder pieces, but preferably in one piece with one additional line section 12 connected by the Slide tab 8 or the adjacent end portion 7 of the Inner tube into the inner tube 1 and at the Inner jacket in the region of the free end 13 of the Inner tube and there to the outside to a first Junction 14 out with plug contacts 15.
  • This additional line section 12 can, however, also from the outside in a preferably inwardly directed longitudinal bead 16 of the inner tube, the open to the outside Longitudinal bead 16, for example with an insulating material is poured out and the round contour of the outer tube added.
  • This longitudinal bead can in an adapted longitudinal bead of the outer tube intervene and so as an anti-rotation between the two Pipes 1, 2 are used. That the free end 13 of the Inner tube facing second end 17 of the spiral line 5 is in the region of the end wall 10 of the groove 6 on the outer tube 2 set and preferably also goes in one piece a further line section 18 on the outer tube 2 to a the free end 19 of the outer tube 2 assigned second connection point 20 with Connection contacts 21 is guided.
  • the outer tube 2 a have corresponding longitudinal bead 22, which in addition to the Cavity 4 or runs along the groove 6.
  • she can either be shaped outwards, as is shown in FIG. 2 is shown to the right of the groove 6. However, it can also be directed radially inwards, as is shown in FIG. 2 is shown to the left of the groove 6. Then the further line section 18 inserted from the outside and can therein z. B. protected by a cover become.
  • One of the longitudinal beads embossed on the inside adapted, molded into the jacket of the inner tube 1 Guide bead 23 then serves as an anti-rotation between the pipes 1, 2.
  • the helical line 5 is in the Cavity 4 in its axially undrawn position. Will that Outer tube 2 pushed axially further onto inner tube 1, then the end wall 10 and thus the second migrates End 17 of the helical line 5 to the free end 13 of the Inner tube 1 down. Since the first end 11 of the helical line 5 is fixed to the inner tube 1, the helical line 4 axially stretched and thus serves as an elastic connecting link between the electrical line sections 12 and 18, which are fixed on the inner tube 1 or on the outer tube 2.
  • connection points 14 and 20 The Current-conducting connection between the connection points 14 and 20 remains thereby, the axial displacement of the Get pipes 1, 2 safely, with the spiral line 5 through their own insulation ensures that no electrical No more pipes, especially those made of metal 1, 2 can arise. Should such a hazard arise the bead 6 and that of it can be feared covered part of the inner tube with a additional electrical insulating coating be provided. When the pipes 1, 2 are pulled apart the spiral line 5 back into its position shown pushed. In this embodiment there are therefore none fault-prone sliding contacts required.
  • the helical line 5 can also be formed in that the cable is not wound spirally, but flat and is folded in a zigzag shape, this folding remains permanently and elastic after stretching contracts itself back to the starting position.
  • the spiral bar can be curved to match the pipe curvature be so that the cavity 4 with an enlarged extension in the circumferential direction essentially in its radial Dimension to the size of the diameter of each Spiral bars can restrict.
  • Such flat embossing can be carried out on pipes with simplified effort.
  • the groove 6 assigned to the outer tube 2 can be in one Actuating mechanism 24 for locking the pipes 1, 2 be integrated in different axial positions, so that overall a closed structure is achieved.

Landscapes

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

Claims (13)

  1. Tuyau d'aspiration, notamment pour des aspirateurs, avec des tuyaux intérieur et extérieur s'engageant l'un dans l'autre à la manière d'un télescope, déplaçables longitudinalement l'un relativement à l'autre et avec un conduit électrique isolé s'étendant en direction de l'axe longitudinal des tuyaux, caractérisé en ce que le conduit est au moins partiellement en spirale ou en forme de zigzag et en ce qu'il est prévu entre le tuyau intérieur (1) et le tuyau extérieur (2) un espace creux (4) s'étendant sur le trajet de déplacement, rendu étanche au côté des extrémités, dans lequel est disposé le conduit en spirale respectivement en forme de zigzag (5).
  2. Tuyau d'aspiration selon la revendication 1, caractérisé en ce qu'une extrémité (11) du conduit en spirale (5) est fixée au tronçon d'extrémité (7) du tuyau intérieur (1) sur lequel passe le tuyau extérieur (2), et que la deuxième extrémité (17) du conduit en spirale (5) est fixée au voisinage de l'extrémité (9) détournée de celui-ci de l'espace creux (4) au tuyau extérieur (2).
  3. Tuyau d'aspiration selon la revendication 1 ou 2, caractérisé en ce que le tuyau intérieur (1) présente un tronçon de conduit électrique additionnel (12) qui s'étend depuis l'extrémité libre (13) depuis l'extérieur du tronçon de tuyau chevauché par le tuyau extérieur (2) jusqu'à l'extrémité (11) reliée au tuyau intérieur (1) du conduit en spirale (5) et est relié électriquement à celui-ci.
  4. Tuyau d'aspiration selon la revendication 1 ou l'une des suivantes, caractérisé en ce qu'il est placé sur l'enveloppe du tuyau extérieur (2) une pièce profilée de rainure bombée vers l'extérieur qui est fermée aux deux extrémités.
  5. Tuyau d'aspiration selon la revendication 4, caractérisé en ce que le tuyau extérieur (2), au voisinage de la rainure (6), est fendu axialement pour le passage du tronçon de conduit (12) et que l'autre extrémité (17) du conduit en spirale (5) est fixée à l'extrémité de la rainure (6) qui est orientée vers l'extrémité libre (13) du tuyau intérieur (1).
  6. Tuyau d'aspiration selon la revendication 1, 2 ou 3, caractérisé en ce que le tuyau intérieur (1) présente une rainure orientée vers l'intérieur et/ou le tuyau extérieur (2) une rainure orientée vers l'extérieur, s'étendant dans la direction longitudinale du tuyau, qu'il est disposé dans la section transversale de la rainure formée le cas échéant conjointement le conduit en spirale (5), qu'il est disposé au voisinage d'au moins l'une des extrémités qui se chevauchent (7, 9) des tuyaux une languette de glissement (8, 9) fermant la section transversale de la rainure (6), fixée à un tuyau (1, 2), et en ce que les extrémités (11, 17) du conduit en spirale (5) sont fixées respectivement au voisinage des extrémités chevauchantes (7, 9) des tuyaux (1, 2).
  7. Tuyau d'aspiration selon la revendication 6, caractérisé en ce qu'il est associé au tuyau extérieur (2) un tronçon de conduit électrique additionnel (18) qui est relié électriquement à l'extrémité (17) fixée au tuyau extérieur (2) du conduit en spirale (5) et qui est guidé dans la zone de l'extrémité libre (19) du tuyau extérieur (2).
  8. Tuyau d'aspiration selon la revendication 6 ou 7, caractérisé en ce que le tronçon de conduit additionnel (12) est posé dans une moulure longitudinale (16) du tuyau intérieur (1).
  9. Tuyau d'aspiration selon la revendication 6 ou l'une des suivantes, caractérisé en ce que le tronçon de conduit additionnel (18) est posé dans une moulure longitudinale (22) du tuyau extérieur (2).
  10. Tuyau d'aspiration selon la revendication 8 ou 9, caractérisé en ce que les moulures longitudinales (16, 22) sont frappées vers l'intérieur.
  11. Tuyau d'aspiration selon la revendication 9 ou 10, caractérisé en ce que la moulure longitudinale (22) dans le tuyau extérieur (12) s'engage dans une rainure axiale adaptée (23) dans le tuyau intérieur (1).
  12. Tuyau d'aspiration selon la revendication 1 ou l'une des suivantes, caractérisé en ce que les spirales du conduit (5) sont réalisées à plat et en forme de zigzag.
  13. Tuyau d'aspiration selon la revendication 12, caractérisé en ce que les pas d'enroulement sont courbés conformément à la courbure du tuyau.
EP94116619A 1994-01-31 1994-10-21 Tuyau téléscopique d'aspirateur avec conducteur électrique en spirale Expired - Lifetime EP0664988B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4402835A DE4402835C2 (de) 1994-01-31 1994-01-31 Teleskopierbares Saugrohr mit elektrischer Leitung
DE4402835 1994-01-31

Publications (2)

Publication Number Publication Date
EP0664988A1 EP0664988A1 (fr) 1995-08-02
EP0664988B1 true EP0664988B1 (fr) 1999-03-31

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EP94116619A Expired - Lifetime EP0664988B1 (fr) 1994-01-31 1994-10-21 Tuyau téléscopique d'aspirateur avec conducteur électrique en spirale

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EP (1) EP0664988B1 (fr)
DE (2) DE4402835C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10314800B3 (de) * 2003-04-01 2004-05-19 Fischer Rohrtechnik Gmbh Teleskopierbares Staubsauger-Saugrohr mit Elektrokabel
DE102004004009A1 (de) * 2004-01-27 2005-08-18 Fischer Rohrtechnik Gmbh Teleskopierbares Staubsauger-Saugrohr mit einem in Kabelkanälen geführten elektrisch leitenden Kabel

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2174050C (fr) * 1995-04-21 2001-07-17 Sadahiro Shimada Aspirateur electrique
ES2221943T3 (es) * 1996-08-13 2005-01-16 Bsh Bosch Und Siemens Hausgerate Gmbh Dispositivo ajustable de conexion electrica para tubo telescopico de aspirador.
DE19638976A1 (de) * 1996-09-23 1998-03-26 Bosch Siemens Hausgeraete Verstellbare Stromübertragungseinrichtung für ein Staubsaugerteleskoprohr
PL181955B1 (pl) * 1996-10-28 2001-10-31 Zelmer Teleskopowa rura ssaca do odkurzacza PL
DE19652647C1 (de) * 1996-12-18 1997-12-18 Fischer Rohrtechnik Gmbh Teleskopierbares Staubsauger-Saugrohr mit einem darin angeordneten, elektrisch leitenden Kabel
GB0425626D0 (en) * 2004-11-22 2004-12-22 Hoover Ltd Wand assemblies for vacuum cleaners

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094535A (en) * 1977-01-10 1978-06-13 The Hoover Company Conductive hose and ends
GB1551605A (en) * 1977-02-07 1979-08-30 Dayco Corp Flexible hose
DE7915432U1 (de) * 1979-05-29 1979-09-06 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Teleskopierbarer fuehrungsstiel fuer haushaltsgeraete
DE8019985U1 (de) * 1980-07-25 1980-10-30 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Teleskopierbares saugrohr
DE3914840A1 (de) * 1989-05-05 1990-11-08 Vorwerk Co Interholding Teleskopierbarer fuehrungsstiel fuer bodenpflegegeraete
DE3941767A1 (de) * 1989-12-18 1991-06-20 Mauz & Pfeiffer Progress Vorrichtung zur halterung einer elektrischen leitung an einem staubsaugerrohr und/oder -schlauch
DE59204751D1 (de) * 1991-10-14 1996-02-01 Aeg Hausgeraete Gmbh Längenveränderbares Saugrohr

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10314800B3 (de) * 2003-04-01 2004-05-19 Fischer Rohrtechnik Gmbh Teleskopierbares Staubsauger-Saugrohr mit Elektrokabel
DE102004004009A1 (de) * 2004-01-27 2005-08-18 Fischer Rohrtechnik Gmbh Teleskopierbares Staubsauger-Saugrohr mit einem in Kabelkanälen geführten elektrisch leitenden Kabel
DE102004004009B4 (de) * 2004-01-27 2006-02-02 Fischer Rohrtechnik Gmbh Teleskopierbares Staubsauger-Saugrohr mit einem in Kabelkanälen geführten elektrisch leitenden Kabel

Also Published As

Publication number Publication date
EP0664988A1 (fr) 1995-08-02
DE59408040D1 (de) 1999-05-06
DE4402835A1 (de) 1995-08-03
DE4402835C2 (de) 1997-09-18

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