EP0197962B1 - Tuyau d'aspirateur - Google Patents

Tuyau d'aspirateur Download PDF

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Publication number
EP0197962B1
EP0197962B1 EP19850904693 EP85904693A EP0197962B1 EP 0197962 B1 EP0197962 B1 EP 0197962B1 EP 19850904693 EP19850904693 EP 19850904693 EP 85904693 A EP85904693 A EP 85904693A EP 0197962 B1 EP0197962 B1 EP 0197962B1
Authority
EP
European Patent Office
Prior art keywords
hose
vacuum cleaner
strip
cleaner hose
shell
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
Application number
EP19850904693
Other languages
German (de)
English (en)
Other versions
EP0197962A1 (fr
Inventor
Michael William Leete
Ronald Ian Richardson
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.)
Electrolux AB
Original Assignee
Electrolux AB
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 Electrolux AB filed Critical Electrolux AB
Publication of EP0197962A1 publication Critical patent/EP0197962A1/fr
Application granted granted Critical
Publication of EP0197962B1 publication Critical patent/EP0197962B1/fr
Expired 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

Definitions

  • This invention relates to a vacuum cleaner hose comprising a flexible shell of plastics material which is provided with one electric wire or several wires secured to the shell all along their length.
  • Hoses of the above type are previously known and are used when it is desired to operate the vacuum cleaner by means of control devices which are disposed on a handle connected to the hose, for instance in order to start or stop the vacuum cleaner motor or to change the speed of the motor.
  • This type of hoses can also be used to transmit electric energy from the motorfan unit to an electrically driven tool, for instance a brush roller, in a nozzle which is connected to the hose.
  • the wire embedded in the hose also serves the purpose of forming a rein- . forcing element preventing radial deformation of the hose.
  • US-A-4,203,476 shows a hose which is built up by a strip of plastics, one half of the strip in adjacent turns overlapping the other half.
  • the strip has a ridge facing the outside of the hose, and the side of the ridge facing the interior of the hose is provided with a groove in which a reinforcing electric wire is inserted, the groove being covered by the underlying part of the strip.
  • a drawback of this type of arrangement is that the hose will be very stiff, depending on the overall double thickness of the strip and the use of a homogeneous single wire. This stiffness easily causes damages to the hose after it has been bent several times.
  • Another drawback is that the electric wire is placed in the outer parts of the hose, i.e. the parts which are most exposed to mechanical strain, and this causes a risk for the wire becoming uncovered in case the hose is damaged.
  • a further example of a hose of the above type is described in DE-A-30 01 529.
  • the hose described in this publication is built up by a plastics strip of a particular shape so as to form a cavity in which an electric wire is inserted in such a way that it is freely movable.
  • This movability is achieved because one edge of the strip has several wall portions which after applying the wire on the strip will enclose the wire.
  • the cavity forms a closed profile which makes the hose rigid in the radial direction.
  • the outer wall of the second, U-shaped, edge of the strip is glued to the close profile being created by the first edge.
  • the two edge parts can move comparatively freely relative to one another.
  • the object of this invention is to provide a hose which does not have the above drawbacks and this is achieved by the invention as defined in the following Claim 1.
  • FIG. 1 is a perspective view of a vacuum cleaner with hose and Fig. 2 is a longitudinal section of the hose shown in Fig. 1.
  • the vacuum cleaner shown in Fig. 1 comprises a hood 10 enclosing a motor fan unit and a dust bag.
  • the hood is via a hose 11 and a connection 12 connected to a tubular shaft 13 having a nozzle 14 in its outer end.
  • the hose 11 is provided with an electric wire 15 (Fig. 2) which connects a control means 16 on the connection 12 to an electric source via the electric means in the hood 10.
  • the end of the hose 11 facing the hood can be provided with a connection, not shown, or with a device which is operated by induction in order to make it possible to easily remove the hose from the hood.
  • the hose 11 comprises one strip or several strips 17 of plastics which are wound helically so that a first edge 18 of the strip overlaps the second edge 19 of the strip, the two edges being joined by a U-shaped part 20 which extends radially from the hose.
  • the surface of the first edge 18 which faces the interior of the hose comprises a generally flat part 18a, whose outer end continues into an outer, short side wall 18b and whose inner end continues into an inner, longer side wall 18c.
  • the surface 18d facing the outside of the hose is generally plane.
  • the parts 18a, 18b and 18c together form a groove, whose side walls converge radially outwards.
  • the second edge 19 comprises a ridge which is formed by a flat surface 19a continuing into an inner, short side wall 19b and an outer, longer side wall 19c.
  • the surface 19d facing the interior of the hose is generally flat and forms together with a flat surface 19e at the outside of the hose a tongue 19f which continues into the U-shaped part 20.
  • the flat surface 19a is divided by a recess 21 in which the electric wire 15 is placed.
  • the wire 15 is fixed to the recess 21 by means of glue 22 and in the same way the side walls 18b, 19b, 18c, 19c and the flat parts 18a and 19a, respectively, are fixed to one another.
  • the wire 15 consists of several filaments which are twisted and/or helically wound about a core of non-conductive soft material.
  • the wire comprises in known manner a comparatively thick core of synthetic material about which several metal filaments are twisted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

Tuyau d'aspirateur comprenant une enveloppe flexible en matière plastique pourvue d'un ou plusieurs câbles électriques fixés sur l'enveloppe sur toute leur longueur. Le câble électrique (15) comprend un noyau en matériau souple non conducteur autour duquel sont enroulés de manière hélicoïdale un ou plusieurs filaments en matériau conducteur.

Claims (3)

1. Tuyau d'aspirateur comprenant une enveloppe souple en matière plastique et au moins un câble électrique (15) fixé à l'enveloppe et comprenant plusieurs fils torsadés, l'enveloppe étant formée d'au moins une bande (17) enroulée en hélice, dont les parties formant bords se recouvrent et sont reliées les unes aux autres en formant des tours consécutifs, et l'une des parties formant bord possédant un logement (21) recevant le câble, le logement (21) étant prévu dans une nervure de la première partie formant bord (19), la seconde partie formant bord (18A) recouvrant la nervure, caractérisé en ce que les parties formant bords de tours adjacents sont reliées entre elles le long de la surface de recouvrement, la bande (17) comprenant une partie intermédiaire (20) en forme de U, reliant les parties formant bords et dont la face concave est dirigée vers l'intérieur, vers le centre du tuyau.
2. Tuyau d'aspirateur selon la revendication 1, caractérisé en ce que la seconde partie formant bord (18) possède une gorge dirigée vers l'intérieur du tuyau, les parois latérales (18B, 18C) de la gorge étant convergentes radialement vers l'extérieur, et la nervure de la première partie formant bord (19) possédant des parois latérales de forme complémentaire.
3. Tuyau d'aspirateur selon la revendication 2, caractérisé en ce que l'une des parois latérales (18B) de la gorge s'étend radialement d'une quantité plus petite que l'autre paroi latérale (18C).
EP19850904693 1984-10-02 1985-09-13 Tuyau d'aspirateur Expired EP0197962B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8404933 1984-10-02
SE8404933A SE447444B (sv) 1984-10-02 1984-10-02 Dammsugarslang

Publications (2)

Publication Number Publication Date
EP0197962A1 EP0197962A1 (fr) 1986-10-22
EP0197962B1 true EP0197962B1 (fr) 1988-12-28

Family

ID=20357212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850904693 Expired EP0197962B1 (fr) 1984-10-02 1985-09-13 Tuyau d'aspirateur

Country Status (5)

Country Link
EP (1) EP0197962B1 (fr)
JP (1) JPS62500287A (fr)
DE (1) DE3566948D1 (fr)
SE (1) SE447444B (fr)
WO (1) WO1986001990A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0698257B2 (ja) * 1990-03-30 1994-12-07 株式会社辰巳エヤーエンジニアリング 集塵装置
JPH0444855U (fr) * 1990-08-09 1992-04-16
KR100209033B1 (ko) * 1995-08-10 1999-07-15 다카노 야스아키 전기청소기용호오스와 그 제조방법
KR20040009538A (ko) * 2002-07-24 2004-01-31 이현미 진공청소기용 호스
DE202004017467U1 (de) 2004-11-10 2005-01-27 Truplast Kunststofftechnik Gmbh Schlauch, insbesondere Staubsaugerschlauch
JP5572436B2 (ja) * 2010-03-29 2014-08-13 積水化学工業株式会社 可撓性合成樹脂管

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167645A (en) * 1977-11-14 1979-09-11 Dayco Corporation Electrical current-carrying fluid hose construction
US4310946A (en) * 1979-01-19 1982-01-19 Plastiflex Company International Electromagnetic energy-carrying tube and fabrication method therefor, and the combination thereof with suction cleaning apparatus

Also Published As

Publication number Publication date
EP0197962A1 (fr) 1986-10-22
JPS62500287A (ja) 1987-02-05
SE447444B (sv) 1986-11-17
DE3566948D1 (en) 1989-02-02
SE8404933D0 (sv) 1984-10-02
WO1986001990A1 (fr) 1986-04-10
SE8404933L (sv) 1986-04-03

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