EP1872702A2 - Tube d'aspiration téléscopique pour aspirateur - Google Patents

Tube d'aspiration téléscopique pour aspirateur Download PDF

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Publication number
EP1872702A2
EP1872702A2 EP07012128A EP07012128A EP1872702A2 EP 1872702 A2 EP1872702 A2 EP 1872702A2 EP 07012128 A EP07012128 A EP 07012128A EP 07012128 A EP07012128 A EP 07012128A EP 1872702 A2 EP1872702 A2 EP 1872702A2
Authority
EP
European Patent Office
Prior art keywords
tube
vacuum cleaner
outer tube
cleaner suction
sealing
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.)
Granted
Application number
EP07012128A
Other languages
German (de)
English (en)
Other versions
EP1872702A3 (fr
EP1872702B1 (fr
Inventor
Jürgen Schiemann
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.)
Roxxan GmbH
Original Assignee
Roxxan 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 Roxxan GmbH filed Critical Roxxan GmbH
Priority to PL07012128T priority Critical patent/PL1872702T3/pl
Publication of EP1872702A2 publication Critical patent/EP1872702A2/fr
Publication of EP1872702A3 publication Critical patent/EP1872702A3/fr
Application granted granted Critical
Publication of EP1872702B1 publication Critical patent/EP1872702B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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 a telescopic vacuum cleaner suction tube, with an inner tube and an outer tube and an end attached to the inner end of the inner tube, arranged in the space between the inner and outer tube sealing sleeve made of plastic whose sleeve wall a first, the inner end face of the inner tube associated axial end portion and has a second axial end portion facing away from the inner end surface of the inner tube, wherein the intermediate space between inner and outer tube is sealed by means of a sealing lip formed by the sealing sleeve, which is supported on an inner circumferential surface of the outer tube.
  • Such vacuum cleaner suction pipes are for example in DE 40 17 721 C2 and EP 0 998 871 B1 described and are characterized in particular by the fact that the already existing clearance between the outer tube and inner tube is used to seal the suction tube. A further narrowing of the inner tube cross-section and a consequent reduction in the suction power is thus avoided.
  • vacuum cleaner suction pipes of the aforementioned prior art have proven themselves in practice on a large scale, they are still considered to be capable of improvement, in particular as far as the handling during assembly, a simplified production of the sealing sleeve and a further improved sealing of the vacuum cleaner Suction pipe against leakage air flows concerns.
  • a vacuum cleaner suction tube with the features of claim 1, in particular with the features of the characterizing part, according to which the second axial end portion of the sleeve wall to form an inner circumferential guide surface and under training a sealing lip which is supported on the inner lateral surface of the outer tube is widened in a funnel shape.
  • the particular advantage of the further developed sealing sleeve of the vacuum cleaner suction tube according to the invention is that it can be particularly easily attached and pushed on the inner end of the inner tube thanks to its funnel-shaped enlarged guide surface.
  • the sealing sleeve now in the region of the second axial end portion on the outer circumference of the inner tube slightly larger inner circumference, which avoids that due to a slightly oval deformation of the sealing sleeve or not exactly exact centering of the sealing sleeve to the inner tube, the end faces of inner tube and sealing sleeve meet. Damage to the sealing sleeve are thus effectively avoided.
  • an essential part of the invention is also due to the fact that it was recognized that the funnel-shaped guide surface can be produced by a funnel-shaped expansion of the second axial end portion, thereby simultaneously formed for sealing the gap between the outer and inner tube sealing lip on the sealing sleeve is.
  • the first axial end portion of the sleeve wall on an additional, on the inner circumferential surface of the outer tube supporting the sealing lip, so that the space between the inner and outer tube of the vacuum cleaner suction tube is sealed by two sealing lips, resulting in the state of the art allow the remaining, low leakage air flows and associated suction power losses to be reduced further.
  • the additional sealing lip projects axially beyond the inner end face of the inner tube and is spring-loaded on the inner end face Inner lateral surface of the outer tube is supported, which has already proven to be advantageous in the prior art.
  • the first end portion of the sealing sleeve inside circumference has a voltage applied to the inner end surface support collar which limits the Aufschiebweg the sealing sleeve on the inner tube and thus forms a stop.
  • the seal of the intermediate space between the tubes is sealed by a sealing lip against leakage air flows whose material thickness corresponds to the eccentric contour of the intermediate space.
  • the sealing can also be done by the material thickness of the sleeve wall of the eccentric contour of the gap is adjusted.
  • the central contour of the intermediate space is bridged by means arranged in at least a portion of the sleeve wall, externally circumferentially on the sleeve wall spacer ribs, by means of which the sealing sleeve is supported on the inner circumferential surface of the outer tube.
  • the spacer ribs can be aligned both axially and radially.
  • a vacuum cleaner suction pipe is generally designated by the reference numeral 10.
  • the vacuum cleaner suction tube 10 comprises an outer tube 11, an inner tube 12 and a sealing sleeve 13 and thus forms a telescopic vacuum cleaner suction tube arrangement. Between outer tube 11 and inner tube 12 there is a gap 14, which ensures the necessary clearance between the outer and inner tubes 11, 12.
  • the sealing sleeve 13 is disposed on the outside of the inner tube 12, the sealing sleeve 13 being made of a sufficiently resilient thermoplastic material suitable for sealing purposes, e.g. made of polyamide, polyethylene or polypropylene.
  • the sealing sleeve 13 has a first axial end portion 15 which is associated with the inner end 16 of the inner tube 12.
  • a second axial end portion 17 is the inner end 16 of the inner tube 12 and whose inner end face 18 faces away and thus arranged in the region of the outer lateral surface 19 of the inner tube 12.
  • the sleeve wall 20 forming the first and second axial end sections 15, 17 lies with its inner circumferential surface 21 tautly on the outer lateral surface 19 of the inner tube 12 and has circumferentially distributed locking recesses 22, which are penetrated by corresponding locking means 23 of the inner tube and the sealing sleeve 13 firmly Arrange the inner tube 12.
  • the locking means 23 are formed in the present embodiment by pointing in the direction of the outer tube 11 forms 31 of the inner tube 12.
  • the stop surface 25 rests with mounted sealing sleeve 13 on the end face 18 of the inner tube 12 and thus limits the Aufschubweg the sealing sleeve 13 on the inner tube 12.
  • the inner end 16 of the inner tube 12 axially superior first axial end portion 15 of the sealing sleeve 13 further forms a self-resilient on the inner circumferential surface 26 of the outer tube 11 supporting, first sealing lip 27, which the gap 14 between inner tube 12 and outer tube 11 against leakage air flows closes.
  • the second end portion 16 of the sleeve wall 20 is widened in a funnel shape.
  • a likewise funnel-shaped, obliquely in the direction of the inner end 16 of the inner tube 12 tapered guide surface 28 is formed first.
  • the sealing sleeve 13 has an inner circumference widened with respect to the outer circumference of the inner tube 12.
  • sealing sleeve 13 can be slightly decentered radially with respect to the inner tube 12 to the inner end 16 of the inner tube 12 without the end face 18 of the inner tube 12 on the end face 29 in the region of the second axial end portion 17 of Sealing sleeve 13 meets and so the sealing sleeve 13 is pre-damaged.
  • a second on the inner circumferential surface 26 of the outer tube 11 self-supporting supporting sealing lip 30 is provided so that leakage air flows along the gap 14 are reduced by the double seal to a minimum.
  • the production of the sealing sleeve 13 can be substantially simplified if the first sealing lip 27 in the first axial end section 15 is dispensed with without fear of suction power losses compared to the prior art.
  • a telescopic vacuum cleaner suction tube 10 is shown, the inner tube 12 is arranged eccentrically in the outer tube 11.
  • the width of the gap 14 is therefore not constant.
  • the distance between the inner and outer tubes 12, 11 therefore know in the sectional view of FIG. 3 - with respect to the drawing on the left - the width b and the width c on the right.
  • the Inventively formed sealing sleeve 13 find in slightly modified form use.
  • FIGS. 4 and 5 show a sealing sleeve 13 adapted to the eccentric arrangement of outer and inner tubes 11, 12, FIG. 4 being a plan view of the funnel-shaped second axial end section 17 and FIG. 5 a sectional view of the sealing sleeve 13.
  • the sealing sleeve 13 can be adapted in two ways to the eccentric contour of the intermediate space 14 following from the eccentric arrangement of the inner and outer tubes 12, 11.
  • the sealing lip 27 and / or 30 is therefore up to the maximum distance b between the inner and outer tubes 12, 11 radially wider and then, adapted to the contour of the gap 14, again narrower. This ensures that the sealing lip 27 and / or 30 rests fully on the inner circumferential surface 26 of the outer tubes over its entire circumference.
  • the material thickness of the sleeve wall 20 is adapted to the eccentric contour of the intermediate space 14 in the same way. Also, it is ensured that the sealing lip 27 and / or 30 rests against the inner circumferential surface 26 of the outer tube 11 over its entire circumference.
  • the sleeve wall 20 is provided with axially or radially extending externally circumferentially disposed in at least a portion of the sleeve wall 20 spacer ribs.
  • the sealing sleeve 13 is supported in the areas on the inner circumferential surface 26 of the outer tube 11, in which the material thickness of the sleeve wall is less than the distance between the outer and inner tubes 11, 12th

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
EP07012128A 2006-06-29 2007-06-21 Tube d'aspiration téléscopique pour aspirateur Ceased EP1872702B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07012128T PL1872702T3 (pl) 2006-06-29 2007-06-21 Teleskopowa rura ssąca do odkurzacza

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006030138A DE102006030138B3 (de) 2006-06-29 2006-06-29 Teleskopierbares Staubsauger-Saugrohr

Publications (3)

Publication Number Publication Date
EP1872702A2 true EP1872702A2 (fr) 2008-01-02
EP1872702A3 EP1872702A3 (fr) 2008-08-13
EP1872702B1 EP1872702B1 (fr) 2010-05-19

Family

ID=38441941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07012128A Ceased EP1872702B1 (fr) 2006-06-29 2007-06-21 Tube d'aspiration téléscopique pour aspirateur

Country Status (5)

Country Link
EP (1) EP1872702B1 (fr)
KR (1) KR101293932B1 (fr)
CN (1) CN101095605B (fr)
DE (2) DE102006030138B3 (fr)
PL (1) PL1872702T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2277427A2 (fr) 2009-07-24 2011-01-26 Samsung Gwangju Electronics Co., Ltd. Tube télescopique pour appareil électronique
WO2013064050A1 (fr) * 2011-11-02 2013-05-10 江苏国新金属制品有限公司 Tube d'extension d'aspirateur

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102652653B (zh) * 2012-05-09 2014-10-08 江苏国新金属制品有限公司 真空吸尘器伸缩管
EP2614761B1 (fr) * 2012-01-10 2016-04-13 Fischer Rohrtechnik GmbH Système d'étanchéité pour un tuyau d'aspiration d'aspirateur
CN107184152A (zh) * 2017-07-18 2017-09-22 苏州市欧陆杰电器有限公司 吸尘器的伸缩管结构
CN109821307B (zh) * 2019-03-28 2021-01-12 安徽春博环保科技有限公司 一种工业除尘器

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656771A (en) * 1970-12-11 1972-04-18 Irrigation Accessories Co Flexible seal assembly for spigot and bell conduit joint
FR2139688B1 (fr) * 1971-05-28 1973-05-25 Pont A Mousson Fond
DE9006234U1 (de) * 1990-06-01 1990-08-09 Carl Froh Röhrenwerk GmbH & Co, 5768 Sundern Teleskopierbares Staubsauger-Saugrohr
DE19850355A1 (de) * 1998-11-02 2000-05-11 Froh Carl Gmbh Teleskopierbares Staubsauger-Saugrohr
CN2381258Y (zh) * 1999-07-23 2000-06-07 邬兴堂 吸尘器伸缩吸管的密封衬套
CN2385668Y (zh) * 1999-08-25 2000-07-05 倪祖根 吸尘器的偏心伸缩吸管
CN2398962Y (zh) * 1999-11-10 2000-10-04 顾建芳 吸尘器的无级伸缩吸尘管
US6530118B2 (en) * 2000-11-06 2003-03-11 Samsung Kwangju Electronics Co., Ltd. Sub-suction pipe assembly for vacuum cleaner
DE10142684C1 (de) * 2001-08-31 2002-11-07 Fischer Rohrtechnik Gmbh Staubsauger-Saugrohr mit einem auf dem Innenrohr angeordneten Dichtring mit Nut zur Aufnahme eines O-Ringes
DE102005059107B3 (de) * 2005-12-08 2007-03-01 Fon Telescopic Systems Gmbh Teleskopierbares Staubsauger-Saugrohr

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2277427A2 (fr) 2009-07-24 2011-01-26 Samsung Gwangju Electronics Co., Ltd. Tube télescopique pour appareil électronique
EP2277427A3 (fr) * 2009-07-24 2011-04-06 Samsung Gwangju Electronics Co., Ltd. Tube télescopique pour appareil électronique
WO2013064050A1 (fr) * 2011-11-02 2013-05-10 江苏国新金属制品有限公司 Tube d'extension d'aspirateur

Also Published As

Publication number Publication date
DE502007003824D1 (de) 2010-07-01
EP1872702A3 (fr) 2008-08-13
CN101095605A (zh) 2008-01-02
EP1872702B1 (fr) 2010-05-19
PL1872702T3 (pl) 2010-10-29
CN101095605B (zh) 2011-04-13
DE102006030138B3 (de) 2007-10-18
KR101293932B1 (ko) 2013-08-08
KR20080001666A (ko) 2008-01-03

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