WO1999027287A1 - Tuyau avec element a ressort integre dans sa paroi - Google Patents

Tuyau avec element a ressort integre dans sa paroi Download PDF

Info

Publication number
WO1999027287A1
WO1999027287A1 PCT/EP1998/007568 EP9807568W WO9927287A1 WO 1999027287 A1 WO1999027287 A1 WO 1999027287A1 EP 9807568 W EP9807568 W EP 9807568W WO 9927287 A1 WO9927287 A1 WO 9927287A1
Authority
WO
WIPO (PCT)
Prior art keywords
hose
suction
wall
vacuum cleaner
tube
Prior art date
Application number
PCT/EP1998/007568
Other languages
German (de)
English (en)
Inventor
Helmut Drechsler
Jörg Schröter
Viola Rienecker
Martin Jessenberger
Dieter Manger
Johanna Wehner
Wolfgang Beck
Original Assignee
BSH Bosch und Siemens Hausgeräte 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 BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO1999027287A1 publication Critical patent/WO1999027287A1/fr

Links

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics

Definitions

  • the invention relates to a hollow hose for passing a flowing medium.
  • Such hoses are used for example in vacuum cleaners as suction hoses.
  • Self-contracting suction hoses are known in vacuum cleaners on the market.
  • a spring coil is embedded in the corrugated hose wall, by means of which a force which pulls the length of the hose continuously is exerted.
  • the suction hose In idle mode, the suction hose is thus contracted to a minimum length, so that much less space is required for stowing the vacuum cleaner after the suction work has been carried out.
  • the storage is made considerably easier by the length of the suction hose.
  • a disadvantage of such self-shortening suction hoses is the jerky contraction that occurs when performing suction work due to pressure fluctuations. In the event of periodically occurring pressure fluctuations, the suction hose beats, which is associated with undesirable noise generation.
  • the invention has for its object to design a hose of the generic type so that it is more stable against pressure fluctuations of the medium flowing through it. This object is achieved by means of a hose which is designed to generate a spring force acting in the sense of a length reduction in the manner of a telephone cable.
  • An increase in the spring force which causes the hose to contract is achieved in that at least one spring element is integrated in the hose wall.
  • Such a hose can advantageously be used as a suction hose for a vacuum cleaner. Because of its greater stability, such a hose no longer has the disadvantages described above of the known self-shortening suction hoses.
  • a space saving when stowing the vacuum cleaner can be achieved in that the inner opening of the spiral formed by the hose serves as a receptacle for a suction pipe belonging to the vacuum cleaner and coupled to a suction nozzle. This saves the space for storing the suction pipe.
  • the helix formed by the suction hose is supported and cannot tilt sideways.
  • a hose which, for example, serves as a suction hose for a vacuum cleaner.
  • the hose is designed to be coiled during manufacture in the manner of a telephone cable, the type of manufacture being used to impress the spring with a spring force which always keeps the coil to its shortest length.
  • a spring member 2 for example a spring band, can also be embedded in the wall of the hose. Due to the possibly by the spring member 2 supported spring force is exerted on the windings 3 of the hose coil, a force which holds the windings 3 together in contact.
  • the hose is always contracted to a minimum length. If a tensile force is exerted on the hose 1 from the outside, the windings 3 of the hose coil are spread accordingly and a larger hose length is available.
  • a hose When using such a hose as a suction hose for a vacuum cleaner, it is connected at one end to the suction opening of the vacuum cleaner housing and at the other end to a suction pipe coupled to a suction mouthpiece. As soon as a tensile force acts on the hose by moving the suction pipe, the individual windings 3 of the hose coil are thereby spread out, so that a longer hose length desired for carrying out suction work is achieved.
  • the hose coil contracts again to its minimum length, so that relatively little space is required for storing the hose when not in use.
  • Hose coil are inserted. On the one hand, this saves the space otherwise required for the storage of the suction pipe and, on the other hand, the hose coil is prevented from tipping sideways or the individual turns from slipping apart.
  • the hose described can also serve as a connecting element between devices or parts whose spacing fluctuates and between which an exchange of a flowing medium is necessary, for example in ventilation systems or as a connection between a pressure generator and a working device fed by it, also as a connection between a truck and its trailer or its trailer and others more.

Landscapes

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

Abstract

L'invention concerne un tuyau (1) creux pour le passage d'un milieu en écoulement, qui est enroulé en spirale à la manière d'un câble de téléphone en vue de produire un retour élastique raccourcissant sa longueur. Ce tuyau (1) présente une stabilité élevée à l'encontre des fluctuations de pression du milieu qui s'y écoule.
PCT/EP1998/007568 1997-11-24 1998-11-24 Tuyau avec element a ressort integre dans sa paroi WO1999027287A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997152007 DE19752007A1 (de) 1997-11-24 1997-11-24 Hohler Schlauch zum Durchleiten eines Strömenden Mediums
DE19752007.3 1997-11-24

Publications (1)

Publication Number Publication Date
WO1999027287A1 true WO1999027287A1 (fr) 1999-06-03

Family

ID=7849652

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/007568 WO1999027287A1 (fr) 1997-11-24 1998-11-24 Tuyau avec element a ressort integre dans sa paroi

Country Status (2)

Country Link
DE (1) DE19752007A1 (fr)
WO (1) WO1999027287A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10301357A1 (de) * 2003-01-16 2004-08-05 Udo Rattay Flexibles Leitungselement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359688A1 (fr) * 1988-09-16 1990-03-21 Legris Sa Tuyauterie spiralée perfectionnée
DE4035201C1 (en) * 1990-11-08 1991-09-26 Hans-Werner 6301 Wettenberg De Meixner Spirally wound double tube for hydraulic use - includes plastic inner tube which is spiral and surrounded by pipe
DE9303879U1 (de) * 1993-03-18 1993-06-09 Böhner, Christian, Dipl.-Ing., 8602 Schlüsselfeld Wendelleitung zum Transport von Energie, Informationen und/oder Medien

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1103696B (de) * 1957-09-06 1961-03-30 Hoover Ltd Biegsamer ausstreckbarer Schlauch
DE29607727U1 (de) * 1996-04-29 1996-07-25 Bültmann, Monika, 58809 Neuenrade Energieleitungssystem zur Übertragung und Verteilung von Energiemedien
DE29709723U1 (de) * 1997-06-04 1997-07-31 Filterwerk Mann & Hummel Gmbh, 71638 Ludwigsburg Flexible Schlauchleitung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359688A1 (fr) * 1988-09-16 1990-03-21 Legris Sa Tuyauterie spiralée perfectionnée
DE4035201C1 (en) * 1990-11-08 1991-09-26 Hans-Werner 6301 Wettenberg De Meixner Spirally wound double tube for hydraulic use - includes plastic inner tube which is spiral and surrounded by pipe
DE9303879U1 (de) * 1993-03-18 1993-06-09 Böhner, Christian, Dipl.-Ing., 8602 Schlüsselfeld Wendelleitung zum Transport von Energie, Informationen und/oder Medien

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10301357A1 (de) * 2003-01-16 2004-08-05 Udo Rattay Flexibles Leitungselement
DE10301357B4 (de) * 2003-01-16 2005-03-31 Udo Rattay Flexibles Leitungselement

Also Published As

Publication number Publication date
DE19752007A1 (de) 1999-05-27

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