WO2015104067A1 - Tuyau - Google Patents

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Publication number
WO2015104067A1
WO2015104067A1 PCT/EP2014/054610 EP2014054610W WO2015104067A1 WO 2015104067 A1 WO2015104067 A1 WO 2015104067A1 EP 2014054610 W EP2014054610 W EP 2014054610W WO 2015104067 A1 WO2015104067 A1 WO 2015104067A1
Authority
WO
WIPO (PCT)
Prior art keywords
hose
elastic band
hose according
outer shell
piece
Prior art date
Application number
PCT/EP2014/054610
Other languages
German (de)
English (en)
Inventor
Joakim Trumpler
Original Assignee
Ds Produkte 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 Ds Produkte Gmbh filed Critical Ds Produkte Gmbh
Publication of WO2015104067A1 publication Critical patent/WO2015104067A1/fr

Links

Classifications

    • 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
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • 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 hose with a flexible outer shell.
  • Hoses especially for use in the home and garden are known from public prior use. Usual garden hoses need space for your storage, example ⁇ rolled up on a hose cart.
  • the invention is based on the object to provide a hose of the type mentioned, which is simple and inexpensive to manufacture and space-saving storage allowed.
  • Hose arranged elastic band which is connected at least in the two end regions with the outer shell and / or fittings of the hose tensile strength.
  • the invention particularly relates to hoses for use in the home and garden.
  • the hose has a flexible outer shell.
  • Flexible in this connection means that on the one hand allows a conventional curvature of the hose, on the other hand, also a length flexibility to the effect that this Au ⁇ ′hülle permits longitudinal expansion or contraction in length of the tube depends on the pressure prevailing in the tube pressure.
  • the outer shell is preferably flexible in this sense, but not elastic. This means that it opposes ei ⁇ ner of linear expansion of the hose no elastic return ⁇ restoring force.
  • the flexibility may be designed so that the outer shell unfolds in the manner of a concertina during a length contraction.
  • the outer casing can itself be made liquid-tight and pressure-resistant, but it can preferably cooperate with a liquid-tight inner tube in the manner described in more detail below.
  • an elastic band is arranged in the interior of the hose.
  • the term band is to be understood functionally and not limited to a particular cross-sectional shape. It may be a ribbon having a strand that traverses substantially the entire length of the tube. AI ternatively, the tape may have a plurality of substantially parallel or interconnected (beispielswei ⁇ se twisted or braided into each other) strands aufwei ⁇ sen.
  • the band may be divided in the longitudinal direction of the tube into several sections, which are connected miteinan ⁇ . It is according to the invention to a tension element, the elastic restoring force strives to bring the hose into its contracted and thus space-saving storage form.
  • the elastic band preferably runs freely through the entire interior of the tube and is connected only in its two end regions with either the outer shell, the inner tube or preferably with fittings of the hose tensile strength.
  • Tensile means in this context that the elastic restoring force of the band is transferred to these two end portions such that the desired length contraction of the tube can be done.
  • the hose can have a plurality of length sections, at the beginning and at the end of which the band is in each case connected in a tensile-resistant manner to the outer cover, the inner hose or an intermediate piece arranged in the hose.
  • fittings designates connectors such as conventional hose connectors with which the hose can be connected to a faucet, garden tools or the like.
  • the invention is based on the realization that it is advantageous from the point of view of cost-effective production and functionality, the desired length Konschreibi ⁇ on the hose for the purpose of space-saving storage a separate and trained only for this purpose supply assigned (the elastic band), which does not participate in the actual function of the water transport.
  • the elastic band assigned (the elastic band)
  • This makes it possible to select material, cross-sectional design and other design of the elastic band exclusively so that the desired spring elasticity and thus length contraction is achieved. In this way, a reliable length contraction of the hose is also possible over a large number of use cycles.
  • DE 20 2012 012 663 Ul uses a federelasti ⁇ shear inner tube to effect the desired length contraction for space-saving storage.
  • the choice of material and the design of this inner ⁇ hose must be aligned both on the basis of the desired spring elasticity and the water transport function. This is comparatively expensive and less kos ⁇ -effectively.
  • the tube according to the invention is contracted in the absence of pressure in the interior (water pressure) by the elastic band in its comparatively short storage position. It can be stored in a space-saving way.
  • the flexible outer sheath ⁇ folds on it. If the hose is connected to a water pipe What ⁇ and built up inside water pressure, then a length expansion against the spring force of the elastic band. Preferably, this length expansion takes place until the flexible outer shell is fully unfolded.
  • the elastic band is preferably by a factor 2-10, preferably 2-6 wei ⁇ ter, more preferably 3-4 elastically extensible. This elastic extensibility preferably correlates with the possible length expansion of the tube, which is preferably limited by the described full deployment of the flexible outer shell.
  • the restoring force of the elastic band should preferably be chosen such that the tube is contracted after stopping the water and reducing the internal pressure.
  • the contraction can already take place with hose spread out on the floor, in which case the restoring force is sufficient to overcome the friction of the outer shell on the floor.
  • the restoring force then contracts the tube when it is manually brought into the storage position, for example rolled up.
  • the restoring force according to the invention may preferably be between 15 and 100 N, more preferably 20 and 80 N, more preferably 25 and 65 N. The restoring force is measured at the complete elongation of the elastic band with fully unfolded hose.
  • the material of the elastic band is preferably selected from the group consisting of elastomeric plastics and synthetic or natural rubbers. Particularly preferred materials are latex and the group of ther ⁇ thermoplastic elastomers (TPE). Thermoplastic elastomers are elastomers which become thermoplastically deformable above a certain temperature. In this way, they can be brought into the desired shape and length and then have cooled the desired elastomeric properties. The permanent elasticity of the elastic band is sufficient to allow a sufficient number of length expansions and length contractions for the intended use of the hose before any significant material fatigue or breakage occurs.
  • TPE thermoplastic elastomers
  • the cross-sectional shape of the elastic band may be, for example, circular or rectangular.
  • Diameter of the band may for example be in the range of 2-8 mm, more preferably 4-7 mm, more preferably 5-6 mm.
  • a preferred material for the flexible outer shell is a textile material (preferably woven or knitted fabric).
  • a polyester fabric can be used.
  • the material thickness of the flexible outer shell may preferably be in the range 0.2-1 mm, more preferably 0.3-0.6 mm or 0.35 and 0.5 mm. These material thicknesses are both creating sufficient strength and also sufficient Fle ⁇ bility to unfold the outer shell during storage.
  • the flexible outer shell to provide substantial protection against external influences, to provide the substantial part of the compressive strength of the hose and to limit the length of the hose (when fully extended).
  • the liquid-tightness of the tube is then effected by a separate inner tube.
  • This liquid-tight inner tube can be a separate inner tube which is not connected to the outer sheath or the connecting pieces or only at the ends of the tube.
  • the inner hose is pressed radially against the outer shell.
  • the liquid-tight inner tube with the flexible outer shell can be connected flat. For example, it may be glued or laminated thereon.
  • the liquid-tight inner tube preferably contributes just as little as the outer shell to the restoring force, which again contracts the tube, which has been expanded in length, after pressure has been released.
  • This restoring force is preferably applied exclusively or substantially exclusively by the elastic band.
  • the elastic band preferably runs in the interior of the inner tube, it may alternatively be arranged between the inner tube and the outer sheath in the case of an inner tube which is not connected in a planar manner to the outer sheath.
  • the liquid-tight inner tube preferably has a PVC or PU material.
  • the material thickness can at Be ⁇ rich 0.1-0.6 mm, preferably 0.2-0.5 mm, more preferential ⁇ as 0.3-0.4 mm.
  • the restoring force of the elastic band is preferably transferred in each end portion of the tube ⁇ on the fittings of the hose.
  • the elastic band may be connected preferably in each end region of the tube with egg ⁇ nem holding piece that is in turn connected to the tension-proof fitting of the hose. It can be integrally formed on it.
  • the holding piece may be a separate component that is introduced, for example, in the axial direction from the connection side into the connection piece.
  • An end portion shaped, for example, in the manner of a hook or eyelet may protrude into the tube and be connected to the elastic band.
  • a correspondingly shaped second end portion of the holding piece uses the from the connection side occurring to the tube side of the connecting taper ⁇ piece as an abutment.
  • the holding piece is formed on both sides in such a way that it can not be drawn into the tube in the axial direction of elastic elas ⁇ tical band by the taper of the connector, but can be pulled against the axial direction of pull out of the connector together with the attached elastic band from the hose ,
  • a material break of the elastic band such as by material fatigue
  • the holding piece is shaped in such a way that it has at the second end region a further eyelet or a pin on which the holding piece can be gripped more easily.
  • the hose and / or the elastic tension band is divided and firmly connected at one or more points with the inner tube and / or the outer tube.
  • the hose according to the invention may comprise customary and USAGE ⁇ dung in household and garden suitable lengths. In the expanded state, it may preferably be 5-50 m, more preferably 7-30 m long.
  • the deployment pressure ie the pressure at which the hose is substantially reached its full length can (at the current print üb ⁇ the connected fluid generally water sertik) be adjusted. It may for example be between 1.5 and 5 bar, more preferably 2 and 3.5 bar.
  • the compressive strength (burst pressure) of the hose may be with egg ⁇ ner safety margin above the maximum pressure of the fluid and is closed ⁇ for example, lie in the range of 10- 30 bar or 12-20 bar.
  • Fig. 1 A view of a hose according to the invention in the contracted state (storage condition);
  • Fig. 2 A view of a hose according to the invention in the expanded state (use state);
  • FIG. 3 shows in an axial section the end region of a hose according to the invention with elastic band, connecting piece and retaining piece;
  • FIG. 4 shows a perspective view of the axial section of FIG. 3.
  • hose In Fig. 1, the flexible outer shell 1 of the hose is shown contracted (unfolded).
  • the liquid-tight inner tube is here flat connected to the outer shell 1 and not shown separately in the drawings.
  • the hose In this storage condition, the hose has a length which, in this embodiment, may be in the condition of use at about one quarter of the full length.
  • hose connectors 2 and 3 At the ⁇ ends of the hose connectors 2 and 3 are ⁇ arranged. This is a female connector 2 and a male connector 3 in this embodiment.
  • a typical garden hose can also be two female fittings.
  • the two connecting pieces 2 and 3 are each connected to a water connection on the one hand and a water consumer on the other hand.
  • the valve of the water connection is opened and pressurizes the inside of the hose. This pressure expan ⁇ diert the hose against the restoring force of the elastic bands and brings it into the nostinexpandATOR shape which is shown in Fig. 2.
  • the hose has about four times the length of the storage condition.
  • Fig. 3 shows schematically an axial section through an end portion of a hose according to the invention with the connection piece 2.
  • the elastic band 7 is made in this exemplary embodiment from ⁇ latex and has a diameter of about 6 mm ⁇ on.
  • the loop 8 passes through an eyelet 6 of a holding piece 4.
  • This holding ⁇ piece 4 passes in the axial direction part of the connector 2 and has at its end away from the hose ⁇ th a crosspiece 5, the radial extent is greater than the free cross section of It can be seen that the retaining piece 4 can be inserted from the connection side of the An ⁇ final piece 2 in the axial direction until the crossbar 5 comes to rest on the shoulder 11 and the Hal Community 4 axially against further shifting into the hose secures. In this way, the elastic return ⁇ can force of the band 7 on the holding piece 4 and the cross bar 5 on the shoulder 11 and thus on the connection piece 2 are transmitted.
  • the design of the retaining piece 4 and the crosspiece 5 is chosen so that the flow of water through the connector 2 is not significantly hindered.

Landscapes

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

Abstract

L'invention concerne un tuyau pourvu d'une gaine extérieure souple (1). L'invention est caractérisée par une bande élastique (7) qui est disposée à l'intérieur du tuyau et qui est reliée de façon résistante à la traction au moins dans les deux zones d'extrémité à la gaine extérieure (1) et/ou aux pièces de raccordement (2, 3) du tuyau.
PCT/EP2014/054610 2014-01-10 2014-03-10 Tuyau WO2015104067A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201420000070 DE202014000070U1 (de) 2014-01-10 2014-01-10 Schlauch
DE202014000070.0 2014-01-10

Publications (1)

Publication Number Publication Date
WO2015104067A1 true WO2015104067A1 (fr) 2015-07-16

Family

ID=50238405

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/054610 WO2015104067A1 (fr) 2014-01-10 2014-03-10 Tuyau

Country Status (2)

Country Link
DE (1) DE202014000070U1 (fr)
WO (1) WO2015104067A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017148926A1 (fr) 2016-02-29 2017-09-08 Jet Aviation Ag Dispositif de rangement pour tuyau déroulable, ensemble rangement de tuyau et procédé de fabrication d'un tel dispositif de rangement

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2534880B (en) * 2015-02-03 2017-04-26 The Bvg Airflo Group Ltd Flexible garden hose assembly
GB2537138B (en) * 2015-04-08 2020-09-16 Exel Industries Sa Garden water supplying hoses
JP6901799B2 (ja) * 2017-04-24 2021-07-14 株式会社タカギ ホース構造体
WO2023102172A1 (fr) * 2021-12-04 2023-06-08 Winston Products Llc Tuyau extensible

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001027582A2 (fr) * 1999-10-13 2001-04-19 Ascent Systems, Inc. Systeme de repartition de differentiel de pression
US20030000530A1 (en) * 2001-07-02 2003-01-02 Be Intellectual Property, Inc. Self-elongating oxygen hose for stowable aviation crew oxygen mask
EP1621224A2 (fr) * 2001-09-24 2006-02-01 FUKUNAGA, Atsuo F. Circuit de respiration à volume et longeur réglables
US20110017335A1 (en) * 2009-07-21 2011-01-27 Brian Blake System for controlling elongation of a conduit within which flowable material is conveyed

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8291942B2 (en) 2011-11-04 2012-10-23 Blue Gentian, Llc Expandable hose assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001027582A2 (fr) * 1999-10-13 2001-04-19 Ascent Systems, Inc. Systeme de repartition de differentiel de pression
US20030000530A1 (en) * 2001-07-02 2003-01-02 Be Intellectual Property, Inc. Self-elongating oxygen hose for stowable aviation crew oxygen mask
EP1621224A2 (fr) * 2001-09-24 2006-02-01 FUKUNAGA, Atsuo F. Circuit de respiration à volume et longeur réglables
US20110017335A1 (en) * 2009-07-21 2011-01-27 Brian Blake System for controlling elongation of a conduit within which flowable material is conveyed

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017148926A1 (fr) 2016-02-29 2017-09-08 Jet Aviation Ag Dispositif de rangement pour tuyau déroulable, ensemble rangement de tuyau et procédé de fabrication d'un tel dispositif de rangement

Also Published As

Publication number Publication date
DE202014000070U1 (de) 2015-02-03

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