EP1407707A2 - Suction hose - Google Patents

Suction hose Download PDF

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Publication number
EP1407707A2
EP1407707A2 EP03019815A EP03019815A EP1407707A2 EP 1407707 A2 EP1407707 A2 EP 1407707A2 EP 03019815 A EP03019815 A EP 03019815A EP 03019815 A EP03019815 A EP 03019815A EP 1407707 A2 EP1407707 A2 EP 1407707A2
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EP
European Patent Office
Prior art keywords
shaft
web
hose
suction hose
profiles
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.)
Withdrawn
Application number
EP03019815A
Other languages
German (de)
French (fr)
Other versions
EP1407707A3 (en
Inventor
Bernd Dipl.-Ing. Rosemann
György Dr. Paal
Rolf Dipl.-Ing. Künkel
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.)
DR KERN GmbH
Original Assignee
DR KERN 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
Priority claimed from DE10305869A external-priority patent/DE10305869A1/en
Application filed by DR KERN GmbH filed Critical DR KERN GmbH
Publication of EP1407707A2 publication Critical patent/EP1407707A2/en
Publication of EP1407707A3 publication Critical patent/EP1407707A3/en
Withdrawn legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/24Hoses or pipes; Hose or pipe couplings

Definitions

  • the invention relates to a suction hose, in particular for vacuum cleaners, in the form of a corrugated tube from overlapping wound into a helix Plastic profiles with a shaft that are connected to each other in the overlap area are.
  • suction hoses are known in which the plastic profiles essentially Are S-shaped, with the winding into a helix Starting arch of one profile section the end arch of the other profile section, which are arranged more or less radially, overlaps and in this area then a connection of the coils to one another is provided.
  • the elasticity of such a suction hose is due to the deformation of the helix profile.
  • the invention is therefore based on the object of a suction hose at the beginning mentioned type so that it is easy to manufacture lower pressure loss coefficients even at high flow velocities has flowing air.
  • the invention provides that the profiles are shaped and wound that at least from one side a cover web completely or partially covers the inner opening of the shaft.
  • the plastic profile can be designed so that it is a Shaft with a web formed on one side, the free shaft end reaches over this counterpart of the neighboring spiral winding and there with it connected is.
  • the plastic profile should have a cross-section of a shaft, the Height is greater than its width, of which both sides have different lengths webs lying on one level protrude outwards.
  • the shaft end with the short one Web which only for a more extensive welding than the linear system the above construction ensures - spans the long web of the adjacent spiral section, which in turn now more or less the inner opening covering the shaft.
  • the longer web is extended inwards and under partial Cover protrudes into the opening of the shaft. Overlap in this configuration then this inwardly extended web of one shaft with the long outer web of the neighboring wave, so that at a certain distance, which ensures better bendability of the suction hose, complete Coverage of the inner opening of the shaft is achieved and thus the vortex formation is prevented in the wave profile and the pressure losses are reduced.
  • the plastic profiles wound into a helix preferably consist of PP material, the profiles produced by extrusion being welded or are glued together using a PP adhesive. Because with an adhesive connection the adhesive and the base material belong to the same group of substances one speaks of a connection similar to a welded connection, so that a particularly strong permanent and tight connection is guaranteed.
  • the suction hose shown in Fig. 1 is by helical winding a in Essentially S-shaped profile 1 is formed, the shaft portion 2 of the S-shaped Plastic profile the rear S-arch bridge which has just been formed in this case 3 overlaps. In this area, the coils are welded together.
  • the inner openings 5 result in the Waves 4 starting points at which strong vortices can form, which lead to considerable ones Pressure loss at higher suction speeds of the transported air to lead.
  • FIG Geometry is not to scale, so in relation to the thickness of the overlapping profiles the openings 5 are shown too small.
  • the construction according to the invention 2 provided that the plastic profiles 1 from a shaft with a unilateral flat web exist, which are overlapped with each other and in the contact area of the shaft leg 2 on the web 6 by a Weld 7 or an adhesive joint are connected.
  • the end 8 of the Corrugated leg 2 is shortened by the thickness of the web.
  • the plastic profile 1 "not only with a shaft 4 and a longer web 6, but it also points to the other End of the shaft on a narrower web 9, which has a more flat support caused on the web 6 of the adjacent coil when winding, so here a larger connection area can be achieved.
  • Fig. 3 The construction shown in Fig. 3 is useful only by gluing the Wendel producible. Essential for function, flexibility and kink resistance are that the shaft - which in principle also have a semicircular profile could - is higher than wide.
  • the plastic profiles 1 '' 'an additional extension of the longer web 6 after have inside in the form of a web 6a, which, preferably in a very small Distance that engages web 6 of the adjacent coil, so that with this arrangement the inner opening of the shaft 4 is completely covered.
  • the webs 6a and 6, which overlap each other, are of course not connected to each other, since they slide over each other when the suction hose is bent have to.

Abstract

The hose, in particular, in the form of a corrugated suction hose for vacuum cleaners consists of helically wound plastic profiles (1') which are shaped so that their sections (6) provide a partial or complete internal cover on the corrugation waves (4).

Description

Die Erfindung bezieht sich auf einen Saugschlauch, insbesondere für Staubsauger, in Form eines Wellschlauches aus überlappend zu einer Helix gewickelten Kunststoff-Profilen mit einer Welle, die im Überlappungsbereich miteinander verbunden sind.The invention relates to a suction hose, in particular for vacuum cleaners, in the form of a corrugated tube from overlapping wound into a helix Plastic profiles with a shaft that are connected to each other in the overlap area are.

Bekannt sind derartige Saugschläuche, bei denen die Kunststoff-Profile im Wesentlichen S-förmig ausgebildet sind, wobei bei dem Aufwickeln zu einer Helix der Anfangsbogen des einen Profilabschnitts den Endbogen des anderen Profilabschnitts, die mehr oder weniger radial verlaufend angeordnet sind, anliegend übergreift und in diesem Bereich dann eine Verbindung der Wendeln miteinander vorgesehen ist. Die Elastizität eines solchen Saugschlauches wird durch die Verformung des Helix-Profils erzeugt.Such suction hoses are known in which the plastic profiles essentially Are S-shaped, with the winding into a helix Starting arch of one profile section the end arch of the other profile section, which are arranged more or less radially, overlaps and in this area then a connection of the coils to one another is provided. The elasticity of such a suction hose is due to the deformation of the helix profile.

In der Praxis hat sich nun aber gezeigt, dass solche Saugschläuche - und dies gilt selbstverständlich auch für im Wege der Pressverformung einstückig gebildete Saugschläuche, bei höheren Luftgeschwindigkeiten, also insbesondere bei Staubsaugern mit großer Leistung, einen ganz erheblichen Druckverlust besitzen, da die Druckverluste mit der Geschwindigkeit quadratisch steigen, sodass ein Großteil der Energie des Antriebsmotors des Gebläses durch die Verluste im Saugschlauch verloren geht.In practice, however, it has now been shown that such suction hoses - and this applies of course also for those formed in one piece by means of compression molding Suction hoses, at higher air speeds, in particular with vacuum cleaners with great performance, have a very significant pressure drop because the Pressure drops increase quadratically with the speed, so much the energy of the fan drive motor due to the losses in the suction hose get lost.

Es ist bekannt, dass Druckverluste in Rohrströmungen mit zunehmender Wandrauhigkeit steigen. In einem Wellrohr nimmt die Rauhigkeit extreme Formen an; die sonst mikroskopische Oberflächenstruktur wird durch eine makroskopische Unebenheit überlagert. In den von der Geometrie definierten Profilrillen formen sich Wirbel, deren Bewegungsenergie der Kernströmung entzogen wird. Dieser Energieentzug steigt mit zunehmender Strömungsgeschwindigkeit, kann aber stark vermindert werden, wenn die Grenzfläche zwischen Kernströmung und Rillenströmung minimiert wird. It is known that pressure drops in pipe flows with increasing wall roughness climb. In a corrugated pipe, the roughness takes on extreme forms; the otherwise microscopic surface structure is characterized by a macroscopic Unevenness superimposed. Shape into the profile grooves defined by the geometry vortices whose kinetic energy is extracted from the core flow. This Energy withdrawal increases with increasing flow velocity, but can can be greatly reduced if the interface between core flow and groove flow is minimized.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Saugschlauch der eingangs genannten Art so auszugestalten, dass er bei einfacher Herstellbarkeit niedrigere Druckverlustbeiwerte auch bei hohen Strömungsgeschwindigkeiten der durchströmenden Luft aufweist.The invention is therefore based on the object of a suction hose at the beginning mentioned type so that it is easy to manufacture lower pressure loss coefficients even at high flow velocities has flowing air.

Zur Lösung dieser Aufgabe ist erfindungsgemäß vorgesehen, dass die Profile so geformt und gewickelt sind, dass wenigstens von einer Seite her ein Abdecksteg die Innenöffnung der Welle ganz oder teilweise überdeckt.To solve this problem, the invention provides that the profiles are shaped and wound that at least from one side a cover web completely or partially covers the inner opening of the shaft.

Durch diese Abdeckung der Innenöffnung, die gegebenenfalls sogar so weit gehen kann, dass dieser Abdecksteg federnd an der Gegenkante des wellenförmigen Bogens anliegt und somit deren Innenöffnung völlig überdeckt ist, erzielt man einerseits nach wie vor eine gute Elastizität des als Helix gewickelten Saugschlauchs, hat aber andererseits eine im Wesentlichen glatte Innenfläche, allenfalls mit einem kleinen Spalt zwischen dem Stegende und dem gegenüberliegenden Gegenende der Welle, der aber im Hinblick auf eine störende Wirbelbildung vernachlässigbar ist.Through this cover of the inner opening, which may even go so far can that cover bar resilient on the opposite edge of the wavy Arch is applied and its inner opening is completely covered, you can achieve on the one hand still good elasticity of the suction hose wound as a helix, but on the other hand has an essentially smooth inner surface, at best with a small gap between the web end and the opposite Opposite end of the wave, but with regard to a disturbing vortex formation is negligible.

Im einfachsten Fall kann das Kunststoff-Profil so ausgebildet sein, dass es eine Welle mit einem einseitig angeformten Steg aufweist, wobei das freie Wellenende über diesen Gegensteg der benachbarten Wendelwicklung greift und dort mit diesem verbunden ist.In the simplest case, the plastic profile can be designed so that it is a Shaft with a web formed on one side, the free shaft end reaches over this counterpart of the neighboring spiral winding and there with it connected is.

Bevorzugt soll das Kunststoff-Profil aber querschnittlich eine Welle aufweisen, deren Höhe größer als seine Breite ist, von der beidseits unterschiedlich lange in einer Ebene liegende Stege nach außen ragen. Das Wellenende mit dem kurzen Steg, der lediglich zu einer flächigeren Verschweißung als die linienförmige Anlage der vorstehend genannten Konstruktion sorgt ― übergreift den langen Steg des benachbarten Wendelabschnitts, der seinerseits nun mehr oder weniger die Innenöffnung der Welle abdeckt.Preferably, however, the plastic profile should have a cross-section of a shaft, the Height is greater than its width, of which both sides have different lengths webs lying on one level protrude outwards. The shaft end with the short one Web, which only for a more extensive welding than the linear system the above construction ensures - spans the long web of the adjacent spiral section, which in turn now more or less the inner opening covering the shaft.

In weiterer Ausgestaltung der Erfindung kann dabei schließlich auch noch vorgesehen sein, dass der längere Steg nach innen verlängert ist und unter teilweiser Abdeckung in die Öffnung der Welle ragt. Bei dieser Ausgestaltung übergreifen sich dann dieser nach innen verlängerte Steg der einen Welle mit dem langen Außensteg der benachbarten Welle, sodass unter Erzielung eines gewissen Abstandes, der eine bessere Verbiegbarkeit des Saugschlauches sicherstellt, eine vollständige Überdeckung der Innenöffnung der Welle erzielt wird und damit die Wirbelbildung im Wellenprofil verhindert wird und die Druckverluste reduziert werden.In a further embodiment of the invention, it can finally also be provided be that the longer web is extended inwards and under partial Cover protrudes into the opening of the shaft. Overlap in this configuration then this inwardly extended web of one shaft with the long outer web of the neighboring wave, so that at a certain distance, which ensures better bendability of the suction hose, complete Coverage of the inner opening of the shaft is achieved and thus the vortex formation is prevented in the wave profile and the pressure losses are reduced.

Bevorzugt bestehen die zu einer Helix gewickelten Kunststoff-Profile aus PP-Material, wobei die im Wege der Extrusion gefertigten Profile verschweißt oder mithilfe eines PP-Klebstoffs miteinander verklebt sind. Da bei einer Klebverbindung der Klebstoff und das Grundmaterial zur selben Stoffgruppe gehören, kann man dabei von einer Verbindung ähnlich einer Schweißverbindung reden, sodass eine besonders feste dauerhafte und dichte Verbindung gewährleistet ist.The plastic profiles wound into a helix preferably consist of PP material, the profiles produced by extrusion being welded or are glued together using a PP adhesive. Because with an adhesive connection the adhesive and the base material belong to the same group of substances one speaks of a connection similar to a welded connection, so that a particularly strong permanent and tight connection is guaranteed.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung einiger Ausführungsbeispiele sowie anhand der Zeichnung. Dabei zeigen:

Fig. 1
einen Schnitt durch einen herkömmlichen aus zu einer Helix gewickelten Kunststoff-Profilen gebildeten Saugschlauch,
Fig. 2
einen Schnitt durch einen erfindungsgemäßen Saugschlauch mit teilweiser Überlappung der Öffnung der Welle und
Fig. 3 und 4
weitere Ausführungsformen eines erfindungsgemäßen Saugschlauchs.
Further advantages, features and details of the invention result from the following description of some exemplary embodiments and from the drawing. Show:
Fig. 1
3 shows a section through a conventional suction hose formed from plastic profiles wound into a helix,
Fig. 2
a section through a suction hose according to the invention with partial overlap of the opening of the shaft and
3 and 4
further embodiments of a suction hose according to the invention.

Der in Fig. 1 gezeigte Saugschlauch wird durch helixförmiges Aufwickeln eines im Wesentlichen S-förmigen Profils 1 gebildet, wobei der Wellenabschnitt 2 des S-förmigen Kunststoff-Profils den in diesem Fall gerade ausgebildeten hinteren S-Bogensteg 3 übergreift. In diesem Bereich sind die Wendeln miteinander verschweißt. Bei dieser Konstruktion ergeben sich durch die inneren Öffnungen 5 der Wellen 4 Ansatzpunkte, an denen sich starke Wirbel bilden können, die zu erheblichen Druckverlusten bei höheren Sauggeschwindigkeiten der transportierten Luft führen. In diesem Zusammenhang ist zu berücksichtigen, dass die in Fig. 1 gezeigte Geometrie nicht maßstabsgerecht ist, sodass im Verhältnis zur Dicke der überlappenden Profile die Öffnungen 5 zu klein dargestellt sind.The suction hose shown in Fig. 1 is by helical winding a in Essentially S-shaped profile 1 is formed, the shaft portion 2 of the S-shaped Plastic profile the rear S-arch bridge which has just been formed in this case 3 overlaps. In this area, the coils are welded together. In this construction, the inner openings 5 result in the Waves 4 starting points at which strong vortices can form, which lead to considerable ones Pressure loss at higher suction speeds of the transported air to lead. In this context it should be borne in mind that the one shown in FIG Geometry is not to scale, so in relation to the thickness of the overlapping profiles the openings 5 are shown too small.

Um diese Schwierigkeiten zu vermeiden, ist bei der erfindungsgemäßen Konstruktion nach Fig. 2 vorgesehen, dass die Kunststoff-Profile 1 aus einer Welle mit einem einseitigen ebenen Steg bestehen, die so überlappend miteinander gewickelt und im Anlagebereich des Wellenschenkels 2 auf dem Steg 6 durch eine Schweißnaht 7 oder eine Klebestelle miteinander verbunden sind. Das Ende 8 des Wellenschenkels 2 ist dabei um die Stärke des Stegs verkürzt.To avoid these difficulties, the construction according to the invention 2 provided that the plastic profiles 1 from a shaft with a unilateral flat web exist, which are overlapped with each other and in the contact area of the shaft leg 2 on the web 6 by a Weld 7 or an adhesive joint are connected. The end 8 of the Corrugated leg 2 is shortened by the thickness of the web.

Um die linienförmige Anlage im Ausführungsbeispiel 1 zu vergrößern, ist bei der in Fig. 3 gezeigten Ausführungsform das Kunststoff-Profil 1" nicht nur mit einer Welle 4 und einem längeren Steg 6 ausgebildet, sondern es weist zusätzlich am anderen Ende der Welle noch einen schmäleren Steg 9 auf, der eine mehr flächige Auflage auf dem Steg 6 der benachbarten Wendel beim Aufwickeln bewirkt, sodass hier eine größere Verbindungsfläche erzielt werden kann.In order to enlarge the linear system in exemplary embodiment 1, in Fig. 3 shown embodiment, the plastic profile 1 "not only with a shaft 4 and a longer web 6, but it also points to the other End of the shaft on a narrower web 9, which has a more flat support caused on the web 6 of the adjacent coil when winding, so here a larger connection area can be achieved.

Die in Fig. 3 gezeigte Konstruktion ist sinnvollerweise nur durch Verkleben der Wendel fertigbar. Wesentlich für die Funktion, Biegeweichheit und Knickfestigkeit sind dabei, dass die Welle - die im Prinzip auch ein halbkreisförmiges Profil aufweisen könnte - höher ist als breit.The construction shown in Fig. 3 is useful only by gluing the Wendel producible. Essential for function, flexibility and kink resistance are that the shaft - which in principle also have a semicircular profile could - is higher than wide.

Beim Ausführungsbeispiel nach Fig. 4 ist darüber hinaus noch vorgesehen, dass die Kunststoff-Profile 1''' eine zusätzliche Verlängerung des längeren Stegs 6 nach innen in Form eines Stegs 6a aufweisen, der, bevorzugt in einem ganz geringen Abstand, den Steg 6 der benachbarten Wendel übergreift, sodass bei dieser Anordnung die innere Öffnung der Welle 4 vollständig überdeckt ist. Die Stege 6a und 6, die einander so übergreifen, sind selbstverständlich nicht miteinander verbunden, da sie ja beim Verbiegen des Saugschlauches übereinander abgleiten müssen.In the embodiment of FIG. 4 it is also provided that the plastic profiles 1 '' 'an additional extension of the longer web 6 after have inside in the form of a web 6a, which, preferably in a very small Distance that engages web 6 of the adjacent coil, so that with this arrangement the inner opening of the shaft 4 is completely covered. The webs 6a and 6, which overlap each other, are of course not connected to each other, since they slide over each other when the suction hose is bent have to.

Claims (5)

Schlauch, insbesondere Saugschlauch für Staubsauger, in Form eines Wellschlauches aus überlappend zu einer Helix gewickelten Kunststoff-Profilen, mit einer Welle, die im Überlappungsbereich miteinander verbunden sind, dadurch gekennzeichnet, dass die Profile (1', 1", 1''') so geformt und gewickelt sind, dass wenigstens von einer Seite her ein Abdecksteg (6) die Innenöffnung (5) der Welle (4) ganz oder teilweise überdeckt.Hose, in particular suction hose for vacuum cleaners, in the form of a corrugated hose made of plastic profiles overlapping to form a helix, with a shaft which are connected to one another in the overlap area, characterized in that the profiles (1 ', 1 ", 1''') are shaped and wound in such a way that at least from one side a cover web (6) completely or partially covers the inner opening (5) of the shaft (4). Schlauch nach Anspruch 1, dadurch gekennzeichnet, dass das Kunststoff-Profil (1", 1''') querschnittlich eine Welle (4) aufweist die höher ist als breit.Hose according to claim 1, characterized in that the plastic profile (1 ", 1 ''') has a cross-sectionally a shaft (4) which is higher than it is wide. Schlauch nach Anspruch 2, dadurch gekennzeichnet, dass von der Welle (4) beidseits unterschiedlich lange, in einer Ebene liegende Stege (6, 9) nach außen ragen.Hose according to claim 2, characterized in that webs (6, 9) of different lengths, lying in one plane, project outwards from the shaft (4) on both sides. Schlauch nach Anspruch 3, dadurch gekennzeichnet, dass der längere Steg (6) nach innen verlängert ist und unter teilweiser Überlappung mit dem Steg (6) der Nachbauwendel in die Öffnung (5) der Welle (4) ragt.Hose according to claim 3, characterized in that the longer web (6) is extended inwards and, with partial overlap with the web (6), the replica helix projects into the opening (5) of the shaft (4). Schlauch nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die aus PP-Material bestehenden, vorzugsweise im Wege der Extrusion gefertigten, Kunststoff-Profile (1', 1", 1''') mittels eines PP-Klebstoffs im Überlappungsbereich miteinander verbunden sind.Hose according to one of claims 1 to 4, characterized in that the plastic profiles (1 ', 1 ", 1"'') consisting of PP material, preferably manufactured by extrusion, by means of a PP adhesive in the overlap area with one another are connected.
EP03019815A 2002-10-11 2003-08-30 Suction hose Withdrawn EP1407707A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10247661 2002-10-11
DE10247661 2002-10-11
DE10305869A DE10305869A1 (en) 2002-10-11 2003-02-13 suction
DE10305869 2003-02-13

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Publication Number Publication Date
EP1407707A2 true EP1407707A2 (en) 2004-04-14
EP1407707A3 EP1407707A3 (en) 2005-03-23

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006111536A1 (en) * 2005-04-20 2006-10-26 BSH Bosch und Siemens Hausgeräte GmbH Flexible suction hose for a vacuum cleaner
EP1997416A2 (en) * 2007-05-31 2008-12-03 Samsung Gwangju Electronics Co., Ltd. Flexible hose and vacuum cleaner having the same
GB2456225A (en) * 2008-01-08 2009-07-15 Iti Scotland Ltd A tubular article
WO2010086819A1 (en) * 2009-01-28 2010-08-05 Plastiflex Belgium Flexible hose with smooth inner and/or outer wall
BE1018636A5 (en) * 2009-01-28 2011-05-03 Plastiflex Belgium FLEXIBLE HOSE WITH SMOOTH INNER WALL.
DE102010041816A1 (en) * 2010-09-30 2012-04-05 BSH Bosch und Siemens Hausgeräte GmbH Method for producing a flexible suction hose
DE102011084196A1 (en) 2011-10-10 2013-04-11 BSH Bosch und Siemens Hausgeräte GmbH Hose line with elastic Holprofile, especially for a vacuum cleaner
DE102011084199A1 (en) 2011-10-10 2013-04-11 BSH Bosch und Siemens Hausgeräte GmbH Hose line with tongue, especially for a vacuum cleaner
DE102011084197A1 (en) 2011-10-10 2013-04-11 BSH Bosch und Siemens Hausgeräte GmbH Hose with overlapping tongues, especially for a vacuum cleaner
DE102011084195A1 (en) 2011-10-10 2013-04-11 BSH Bosch und Siemens Hausgeräte GmbH Tubing used as suction hose in vacuum cleaner, has compressible closed-pore that is provided in region of inner corrugation trough formed in wall along longitudinal direction, for pneumatic and hydraulic smoothing of tubing

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Publication number Priority date Publication date Assignee Title
US4471813A (en) * 1980-04-04 1984-09-18 Dayco Corporation Hose construction
DE3636168A1 (en) * 1986-10-24 1988-04-28 Licentia Gmbh Hose, in particular suction hose for vacuum cleaners
US5007462A (en) * 1985-02-25 1991-04-16 Shiro Kanao Synthetic resin underground pipe having high pressure-withstanding capability
JPH11159668A (en) * 1997-12-01 1999-06-15 Tigers Polymer Corp Flexible hose

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US4471813A (en) * 1980-04-04 1984-09-18 Dayco Corporation Hose construction
US5007462A (en) * 1985-02-25 1991-04-16 Shiro Kanao Synthetic resin underground pipe having high pressure-withstanding capability
DE3636168A1 (en) * 1986-10-24 1988-04-28 Licentia Gmbh Hose, in particular suction hose for vacuum cleaners
JPH11159668A (en) * 1997-12-01 1999-06-15 Tigers Polymer Corp Flexible hose

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN Bd. 1999, Nr. 11, 30. September 1999 (1999-09-30) -& JP 11 159668 A (TIGERS POLYMER CORP), 15. Juni 1999 (1999-06-15) *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006111536A1 (en) * 2005-04-20 2006-10-26 BSH Bosch und Siemens Hausgeräte GmbH Flexible suction hose for a vacuum cleaner
EP1997416A2 (en) * 2007-05-31 2008-12-03 Samsung Gwangju Electronics Co., Ltd. Flexible hose and vacuum cleaner having the same
EP1997416A3 (en) * 2007-05-31 2011-08-10 Samsung Electronics Co., Ltd. Flexible hose and vacuum cleaner having the same
RU2448637C2 (en) * 2007-05-31 2012-04-27 Самсунг Гуангджу Электроникс Ко., Лтд. Flexible hose and vacuum cleaner containing flexible hose
GB2456225A (en) * 2008-01-08 2009-07-15 Iti Scotland Ltd A tubular article
GB2456225B (en) * 2008-01-08 2009-12-30 Iti Scotland Ltd A tubular article
US8820364B2 (en) 2009-01-28 2014-09-02 Plastiflex Group Flexible hose with smooth inner and/or outer wall
WO2010086819A1 (en) * 2009-01-28 2010-08-05 Plastiflex Belgium Flexible hose with smooth inner and/or outer wall
BE1018636A5 (en) * 2009-01-28 2011-05-03 Plastiflex Belgium FLEXIBLE HOSE WITH SMOOTH INNER WALL.
DE102010041816A1 (en) * 2010-09-30 2012-04-05 BSH Bosch und Siemens Hausgeräte GmbH Method for producing a flexible suction hose
EP2436502A3 (en) * 2010-09-30 2014-10-22 BSH Bosch und Siemens Hausgeräte GmbH Method for producing a flexible suction hose and the manufactured suction hose
DE102011084199A1 (en) 2011-10-10 2013-04-11 BSH Bosch und Siemens Hausgeräte GmbH Hose line with tongue, especially for a vacuum cleaner
DE102011084195A1 (en) 2011-10-10 2013-04-11 BSH Bosch und Siemens Hausgeräte GmbH Tubing used as suction hose in vacuum cleaner, has compressible closed-pore that is provided in region of inner corrugation trough formed in wall along longitudinal direction, for pneumatic and hydraulic smoothing of tubing
EP2581023A2 (en) 2011-10-10 2013-04-17 BSH Bosch und Siemens Hausgeräte GmbH Hose with tongue, in particular for a vacuum cleaner
EP2581024A2 (en) 2011-10-10 2013-04-17 BSH Bosch und Siemens Hausgeräte GmbH Hose with overlapping tongues, in particular for a vacuum cleaner
EP2584238A2 (en) 2011-10-10 2013-04-24 BSH Bosch und Siemens Hausgeräte GmbH Hose line with elastic hollow profile, in particular for a vacuum cleaner
DE102011084197A1 (en) 2011-10-10 2013-04-11 BSH Bosch und Siemens Hausgeräte GmbH Hose with overlapping tongues, especially for a vacuum cleaner
EP2581024A3 (en) * 2011-10-10 2014-09-10 BSH Bosch und Siemens Hausgeräte GmbH Hose with overlapping tongues, in particular for a vacuum cleaner
DE102011084196A1 (en) 2011-10-10 2013-04-11 BSH Bosch und Siemens Hausgeräte GmbH Hose line with elastic Holprofile, especially for a vacuum cleaner
DE102011084195B4 (en) 2011-10-10 2018-07-05 BSH Hausgeräte GmbH Foamed hose line, especially for a vacuum cleaner

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