EP1806088A2 - Tuyau d'aspiration télescopique d'un aspirateur comportant un élément de verrouillage sous forme d'un ressort en étrier - Google Patents

Tuyau d'aspiration télescopique d'un aspirateur comportant un élément de verrouillage sous forme d'un ressort en étrier Download PDF

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Publication number
EP1806088A2
EP1806088A2 EP06023294A EP06023294A EP1806088A2 EP 1806088 A2 EP1806088 A2 EP 1806088A2 EP 06023294 A EP06023294 A EP 06023294A EP 06023294 A EP06023294 A EP 06023294A EP 1806088 A2 EP1806088 A2 EP 1806088A2
Authority
EP
European Patent Office
Prior art keywords
bow spring
vacuum cleaner
cleaner suction
suction tube
telescopic vacuum
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
EP06023294A
Other languages
German (de)
English (en)
Other versions
EP1806088B1 (fr
EP1806088A3 (fr
Inventor
August Cordes
Martin Cordes
Stephan Cordes
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.)
Fischer Rohrtechnik GmbH
Original Assignee
Fischer Rohrtechnik 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 Fischer Rohrtechnik GmbH filed Critical Fischer Rohrtechnik GmbH
Publication of EP1806088A2 publication Critical patent/EP1806088A2/fr
Publication of EP1806088A3 publication Critical patent/EP1806088A3/fr
Application granted granted Critical
Publication of EP1806088B1 publication Critical patent/EP1806088B1/fr
Not-in-force 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
    • 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 outer tube, an inner telescoping inner tube with locking recesses, a rotation and a locking device with a locking element which is disengaged from him about diametrically opposed actuator from the detent recess, wherein the locking means of at least one of the inner tube a form-fitting encompassing bow spring is made, which engages under bias of a spring, the locking element in a telescoping in the nearest locking recess of the inner tube again.
  • the bow spring has an annular and the detent recess a part-circular cross-section.
  • the locking element against the force of the leaf spring from the locking recess as on an inclined plane slide up and disengage and thus carried out an undesirable telescopic adjustment.
  • the locking element again pressing into the detent recess leaf spring not only increases the manufacturing and assembly costs, but also requires a sleeve-like handle to the outer and inner tube to accommodate the leaf spring secured, which not only increases the assembly but also the manufacturing cost ,
  • the invention has for its object to provide a telescopic vacuum cleaner suction pipe of the type mentioned, which not only significantly reduces the manufacturing and assembly costs of locking technology, but also always a safe, shock-like pressure loads resistant locking at easy ergonomic handling guaranteed.
  • the bow spring consists of an annular spring with a rectangular or circular cross-section, which alternatively surrounds the inner tube or a guide sleeve or the outer tube not only form fit, but also non-positively and the free ends of the actuating element to disengage the lock are obviouslyzuspreizen, whereby the locking element lifted out of the detent recess is.
  • the lock consists of only two parts, namely a bow spring and an actuator in the form of a push button or a slider, which reduces the manufacturing and assembly costs accordingly.
  • the free ends of the bow spring in the vicinity of the actuating element funnel-shaped either one or bent outwards to ensure a always low-friction and trouble-free engagement with the actuator.
  • the locking recesses in the inner tube have a flat rectangular shape, which cooperate positively with a cross-sectionally rectangular bow spring.
  • the actuating element is designed as a push button, which engages with its bow spring facing provided with a cone or wedge-shaped end in the space between the funnel-shaped inwardly or outwardly bent ends of the bow spring and under a bias of the bow spring in its locking position in a raised position is raised within a surrounding housing.
  • the bow spring over the push button also fulfills the function of a return spring in its initial position and at the same time with their non-positive and positive gripping the inner tube secure engagement of their locking element in the respective locking recess under the same spring preload.
  • the push button with its conical face in the space between the funnel-shaped inwardly or outwardly bent ends of the bow spring pressed down in the direction of the surface of the inner tube with simultaneous spreading apart of the bow spring, whereby the bow spring disengages with its diametrically opposed locking element from the detent recess of the inner tube and thus the inner tube either inserted into the outer tube or in the outer tube it can be pulled out.
  • the actuating element consists of a slide arranged on the outer tube, which is movable parallel to the direction of the longitudinal axis of symmetry.
  • This slider has two pairs of conical surfaces applied to the run-up edges formed by the bent ends of the bow spring, which are connected to each other at their opposite tip areas hourglass-shaped and thus spread the bow spring parallel to the longitudinal axis of symmetry of the tubes upon movement of the slide.
  • This can ergonomically favorable manner, z. B. pulled when pulling the telescopic tubes of the slide in the direction of the handle and pressed when telescoping the tubes in the direction of the nozzle part, whereby a coordinated with the telescoping operation of the slide in one or the other direction runs.
  • the conical surfaces extend advantageously to a plane passing through the longitudinal axis of symmetry at an angle ⁇ between 30 ° and 60 °, advantageously at an angle ⁇ of 45 ° and are formed as a flat conical surfaces of a quadrangular pyramid.
  • the conical surfaces can also consist of partial circumferential surfaces of two straight circular cones.
  • the actuating element is arranged both in the form of the push button and in the form of a slide together with a still to be discussed guide sleeve on an extended, the inner tube end facing the outer tube.
  • the slide is provided at its, the free outwardly bent ends of the bow spring facing surface area with guide grooves in which these ends of the bow spring out and when moving in one of the two directions parallel to the longitudinal axis of symmetry of the tubes to open the Locking device are spread apart.
  • this is advantageously designed as a sleeve tube completely encompassing the outer tube, which at its The detent element nearest inner surface has a securing projection which engages in the locking position exactly in its central region of the locking element.
  • This securing projection ensures that in jerky pulses on one end or both ends of the tubes - unlike the prior art - an undesirable telescoping is not possible. Only when the slide shifts when moving in one of the two possible directions in the central region of the securing projection relative to the locking element, the locking element can disengage from the detent recess. Otherwise this is prevented by the securing projection.
  • the cam tracks of these guide grooves are adapted to the geometry of the securing projection, that only after a short, straight displacement within a straight portion of the curved path of the spreading of the ends of the bow spring can begin. This clear curve guide a possible jamming of the locking projection with the locking element when opening the lock is excluded.
  • the bow spring is advantageously made of spring steel and is spreadable on a circumferential groove of a guide sleeve positively and non-positively disposed, which at the end of the outer tube in a space between the inner and outer tube is arranged stationary. At two diametrically opposite areas, the bow spring openings, through one of which grip the ends of the bow spring and the other by the locking element.
  • the rotation is in a conventional manner from a parallel to the longitudinal axis of symmetry extending longitudinal groove, in which a projection of the guide sleeve engages positively.
  • the longitudinal groove is arranged in the region of the locking recesses in the inner tube.
  • the telescopic vacuum cleaner suction pipe is always 1, the outer tube with 2, its inner tube with 3, the guide sleeve with 4, the actuator with 5, the bow spring with 6, the detent recess with 7 and the longitudinal axis of symmetry 8.
  • the individual embodiments differ essentially by the cross-sectional shape of the bow spring 6 and by the formation of the actuating element 5 either as a push button 9 or as a slide 10th
  • the actuating element 5 is designed as a push button 9.
  • the push button 9 is surrounded by a push-button housing 11, which is fixed to the top 2a of the outer tube z. B. is connected by gluing.
  • the shape of the push button 9 is shown in detail in FIGS. 20 to 22 and the shape of the push-button housing 11 in detail in FIGS. 17 to 19.
  • the bow spring 6 according to FIGS. 6 to 8 is provided with inwardly bent free ends 12, 13, whereby a funnel-shaped gap 14 is formed, in which the push button 9 engages with its conical surface 9a (see FIG. 22).
  • a funnel-shaped gap 14 is formed, in which the push button 9 engages with its conical surface 9a (see FIG. 22).
  • This flattened part forms the locking element 15, which engages in correspondingly form-fitting and therefore also rectangularly formed locking recesses 7 of the inner tube 3 (see FIGS. 2 and 3).
  • the bow spring 6 In the closed position of the bow spring 6 according to FIGS. 1, 2 and 4, it is positively and non-positively under a certain bias in a groove 4e of the guide sleeve 4 (see FIGS. 24 and 25), whereby the push button 9 as shown in FIGS. 1, 2 and 4 is pressed in its raised position, which signals the locking position of the bow spring 6.
  • the bow spring 6 forms not only with its locking element 15, the locking element of the telescopic vacuum cleaner suction tube 1, but at the same time the return spring for the push button 9 to this in its raised position shown in FIG. 1, 2 and 4 and thus in the Hold locking position.
  • the guide sleeve 4 according to FIGS. 23 to 26 is provided with an opening 4a for the passage of the locking element 15 of the bow spring 6 and a second, diametrically opposite opening 4b for the passage of the ends 12, 13 of the bow spring 6 and the push button 9 and of the slider 10 provided.
  • it has a collar 4c, with which it is fixed non-rotatably and immovably on the end face of the outer tube 2 in an extension 2b of the outer tube 2 at its end facing the inner tube 3 end.
  • the guide sleeve according to FIG. 23 is provided with an anti-rotation projection 4d, which together with a groove 16 in the inner tube 3 forms the anti-twist 4d / 16, so that the inner tube 3 of the telescopic vacuum cleaner suction tube 1 relative to the outer tube 2 is not relatively rotated but only along the SymmetrielShsachse 8 can be moved.
  • This groove 16 passes through the middle of the region of the locking recesses 7 of the inner tube 3, whereby both this groove 16 and the locking recesses 7 can be made in a single embossing process of the inner tube 3.
  • Figs. 1, 2 and 4 the locking position of the telescopic vacuum cleaner suction pipe 1 is shown.
  • the locking element 15 of the bow spring 6 is engaged in the nearest detent recess 7 of the inner tube 3.
  • push button 9 is in the raised position.
  • the conical surface 9a of the push button 9 is located at the funnel-shaped inwardly bent ends 12, 13 of the bow spring 6 at. Characterized a funnel-shaped gap 14 is formed for the engagement of the push button 9 between these ends 12, 13 of the bow spring 6.
  • the locking element 15 slides under the bias of the bow spring 6 in the nearest detent recess 7 and the push button 9 is raised again to its initial position shown in FIGS. 1, 2 and 4.
  • the locking position of the telescopic vacuum cleaner suction tube 1 is reached.
  • the inner tube 3 can no longer be undesirably inserted into the outer tube 2, even in the case of abrupt impulse forces exerted on the ends of the outer tube 2 and / or the inner tube 3, because the end edge 15a of the locking element 15 of the bow spring 6 is positively locked to the corresponding edge 7a the respective locking recesses 7 rests and no axial movement of the tubes 2, 3 allow more.
  • the invention also allows the formation of an actuating element 5 in the form of a slider 10.
  • a first embodiment of such a slider 10 is shown in Figs. 9 to 12, wherein the shape of the bow spring 6 to Figs. 6 to 8 corresponds, with the difference that the free ends 12, 13 no longer inward, but now after are bent outside and thereby also with respect to the slider 10 as the actuating element 5 form a funnel-shaped gap 14. Otherwise, with the Figs. 1 to 8 matching parts are designated by like reference numerals.
  • the guide sleeve 4 is identical to the embodiment of the guide sleeve according to FIGS. 23 to 26.
  • the slider 10 is positively coupled to the slider housing 11 a, which is fixedly mounted on the outer surface 2 a of the outer tube 2. Within this slide housing 11a, the slide 10 is guided positively. Also in this embodiment, the outer tube 2 in the vicinity of its the inner tube 3 facing the end of an extension 2b, in which the guide sleeve 4 is housed, so that the full flow cross-section of the inner tube 3 is maintained at this point. Referring to FIGS. 9 and 10, the slider 10 in both directions of the arrow 21 parallel to the longitudinal axis of symmetry 8 of the telescopic vacuum cleaner suction tube 1 slidably. With a displacement in both directions of the double arrow 21 of Fig.
  • the slider 10 Upon displacement in one of the two directions of the double arrow 21 of Fig. 9, the slider 10 is guided within the stationary slide housing 11a and the bow spring 6 at their ends 12, 13 spread.
  • the slide 10 shown in FIGS. 15 and 16 two pairs of the bent ends 12, 13 of the bow spring 6 formed leading edge adjacent cuneiform surfaces 10a, 10b, which are connected at their opposite peak areas hourglass-shaped together and thus during a movement of the slider 10 in each of the directions of the double arrow 21 parallel to the longitudinal axis of symmetry 8 of the tubes 2, 3, the bow spring 6 spread.
  • This When you release the slider 10, this is under the bias of the bow spring 6 shifted so that the ends 12, 13 of the bow spring 6 again abut the narrowest point of the hourglass-shaped slide 10.
  • These conical surfaces 10a, 10b extend to a plane passing through the longitudinal axis of symmetry 8 at an angle ⁇ between 30 ° and 60 °, advantageously below 45 °.
  • the conical surfaces 10a and 10b may also be formed as part of a quadrangular pyramid or as partial lateral surfaces of two straight circular cones, against whose lateral surface the ends 12, 13 of the bow spring 6 abut.
  • FIGS. 27 to 29 A further embodiment of a telescopic vacuum cleaner suction tube 1 is shown in FIGS. 27 to 29.
  • This embodiment differs substantially from the embodiment according to FIGS. 1 to 5 in that the locking recesses 7 are formed in the inner tube 3 of semicircular pitch circular surfaces and the bow spring 6 has a circular cross section according to the embodiment of FIGS. 30 to 33.
  • the Actuator 5 is also formed as a push button 9 and is located in the push-button housing 11, as has been described with reference to FIGS. 1 to 5.
  • Fig. 28 shows the locking position of the bow spring 6 with its locking element 15, whereas Fig. 29 shows the unlocked position of the locking element 15. Only in this position according to FIG.
  • this embodiment is - as in the prior art - afflicted with the disadvantage that the bow spring can slide at impulsive impact forces on the ends of the inner tube 3 and / or the outer tube 2 on the sliding surfaces of the locking recesses 7 by spreading the bow spring 6 upwards and thus an undesired unlocked position is achieved.
  • Figs. 27 to 29 is extremely simple in construction and in its assembly.
  • FIG. 38 to 41 A further embodiment of a telescopic vacuum cleaner suction tube 1 with an actuating element 5 in the form of a slide is shown in Figs. 38 to 41 and the associated bow spring 6 in Figs. 34 to 37.
  • the slide 1 1b is formed as a tubular sleeve valve 11b, which surrounds the outer tube 2 of the telescopic vacuum cleaner suction tube 1 in a partial region which corresponds approximately to the length of the guide sleeve 4.
  • This slider 11b has at its the free, outwardly bent ends 12, 13 of the bow spring 6 facing surface area 24 guide grooves 22, 23, in which the ends 12, 13 of the bow spring 6 and guided during the displacement of the slide 11b in a The two directions of the double arrow 21 of Fig.
  • the latching projection 15 can either be flattened according to FIGS. 11 and 12 and be provided with a rectangular cross-sectional shape or in FIG. 34 in the view have a trapezoidal shape. Accordingly, the locking recesses 7 are to be geometrically adapted accordingly and provided with a geometrically similar cross-sectional shape, thus also here with a trapezoidal cross-sectional shape.
  • the ends 12, 13 of the bow spring 6 are spread apart and the locking element 15 lifted out of the locking recess 7 in a shift in one of the two possible directions of the double arrow 21 of Fig. 1 and Fig. 40 and 41.
  • this is biased by the bow spring 6 and its ends 12, 13 moved to the position in which these ends 12, 13 have the smallest distance from each other (see Fig. 38 in conjunction with Fig. 40).
  • the locking element 15 moves again into the nearest detent recess 7 a.
  • the bow spring 6 fulfills the above-described three functions.
  • FIGS. 42 to 44 Another embodiment of the telescopic vacuum cleaner suction tube 1 with a tubular sleeve valve 10c is shown in FIGS. 42 to 44.
  • the difference from the embodiment with push button 9 according to FIGS. 27 to 29 is now based on the fact that the circular cross-section bow spring 6 and its locking element 15 with a sleeve slide 10c with the same guide grooves 22, 23 for spreading the ends 12, 13 cooperates.
  • the locking recesses 7 are formed part-circular. For impulsive, exerted on the two ends of the outer and inner tube 2, 3 pulse forces this, similar to the prior art described above and in the embodiment according to FIGS.
  • the securing projection 27 is rounded off. However, it can also be provided with unillustrated, conical side surfaces.
  • the design of the cam tracks with the guide grooves 22, 23 is advantageously matched to the design of the securing projection 27. In order not to be hindered by the securing projection 27 when releasing the lock, it is advantageous that the ends 12, 13 of the bow spring 6 are first performed on a path parallel to the longitudinal axis of symmetry 8 and only then in spreading cam tracks 22, 23, so that an always controlled spreading and thus unlocking the locking element 15 can be made from the respective locking recess 7.
  • Fig. 45 is a cross-sectional view of another embodiment of a telescopic vacuum cleaner suction tube 1 is shown, in which the outer tube 2 is provided with four pairs of warts 29, between which not only the bow spring 6 is supported, but also with their rounded ends 30 a spacer form between the outer tube 2 and the inner tube 3.
  • the guide sleeve 4 is dispensable. This can consist of a narrow sleeve ring 4c in conjunction with the projection 4d shown in FIG. 23 because of the anti-rotation device also to be arranged here. Otherwise, with the embodiment of FIGS. 9 to 12 matching parts are designated by like reference numerals. Because of the absence of the guide sleeve 4 shown in Figs. 23 to 26, this embodiment can be referred to as a low-cost version. It is understood that the slider 10 can also be completely replaced by a push button 9.
  • the bow spring 6 is advantageously made of spring steel and is arranged on a circumferential groove 4e (see FIGS. 23 and 26) of the guide sleeve 4 spreadable.
  • This guide sleeve 4 made of plastic is advantageously arranged at the end of the outer tube 2 in a gap 2c as shown in FIGS. 2 and 3, between an enlarged end 2d of the outer tube 2 and the outer surface 3a of the inner tube 3 fixed, whether by gluing or a press-fit connection or like.
  • the core of the invention is based in all embodiments is to produce the lock only two parts, namely from the bow spring 6 on the one hand and the actuating element 5 on the other hand, which allows both training as a push button 9 and as a slider 10, 10c, 11b. This robust training a long life and extremely low clearance between the outer tube 2 and inner tube 3 is ensured.
  • Telescopic vacuum cleaner suction tube 1 Outer tube of 1 2 Top of the outer tube 2 2a Extension of the outer tube 2 2 B Interspace / end of the outer tube 2 2c extended end of the outer tube 2 2d Inner tube of 3 Surface of the inner tube 3 3a guide sleeve 4 openings 4a, 4b narrow sleeve ring 4c twist 4d, 16 circumferential groove of guide sleeve 4th 4e actuator 5 bow spring 6 locking recesses 7 Edges of the locking recesses 7a Longitudinal axis of symmetry 8th push-button 9 conical or wedge-shaped end of the push button 9 9 9a pusher 10 Cone surfaces of slide 10 10a, 10b sleeve valve 10c, 11b Housing of push button 9 11 slide housing 11a free ends of the bow spring 6th 12, 13 gap 14 locking element 15 Edges of the locking element 15a double arrow 17, 19, 20, 21 Guide grooves of slide 10c 22, 23 Area of slide 10c 24 narrowest point of the guide grooves 22, 23 25 Inner surface

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Joints Allowing Movement (AREA)
EP06023294A 2005-12-23 2006-11-09 Tuyau d'aspiration télescopique d'un aspirateur comportant un élément de verrouillage sous forme d'un ressort en étrier Not-in-force EP1806088B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005061923A DE102005061923B3 (de) 2005-12-23 2005-12-23 Teleskopierbares Staubsauger-Saugrohr mit einer Bügelfeder als Verriegelungselement

Publications (3)

Publication Number Publication Date
EP1806088A2 true EP1806088A2 (fr) 2007-07-11
EP1806088A3 EP1806088A3 (fr) 2008-08-06
EP1806088B1 EP1806088B1 (fr) 2011-01-12

Family

ID=37670264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06023294A Not-in-force EP1806088B1 (fr) 2005-12-23 2006-11-09 Tuyau d'aspiration télescopique d'un aspirateur comportant un élément de verrouillage sous forme d'un ressort en étrier

Country Status (5)

Country Link
US (1) US8727383B2 (fr)
EP (1) EP1806088B1 (fr)
CN (1) CN1985739B (fr)
AT (1) ATE494828T1 (fr)
DE (2) DE102005061923B3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014119243A1 (de) * 2014-12-19 2016-06-23 Festool Gmbh Saugschlauch-Anschlussstück
US20170014011A1 (en) * 2015-07-19 2017-01-19 Travis Robbins Telescopic vacuum extension member
GB2544105B (en) * 2015-11-06 2018-05-02 Dyson Technology Ltd Telescopic wand for a vacuum cleaner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929399A1 (de) * 1989-09-05 1991-03-21 Heidemann Werke Teleskopierbare rohrverbindung
US5098241A (en) * 1991-02-05 1992-03-24 Xyzyx International Corp. Variable length telescopic connector and method for use

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US239827A (en) * 1881-04-05 Hose-coupling
US1205131A (en) * 1915-08-05 1916-11-14 William P Beck Stovepipe-joint.
US1770669A (en) * 1927-08-31 1930-07-15 P A Geier Co Swivel connecter
US2023428A (en) * 1934-07-06 1935-12-10 Frederick C Liebhardt Coupling
US2805089A (en) * 1954-12-30 1957-09-03 Hansen Mfg Co Pipe coupling with wedged spring ring detent means
US2901269A (en) * 1957-01-31 1959-08-25 Mcdowell Mfg Co Split ring coupling
US2898130A (en) * 1958-01-20 1959-08-04 Hansen Mfg Co Safety seal
GB957860A (en) * 1962-12-31 1964-05-13 Superflexit Means for locking components against relative rotation
US3347575A (en) * 1965-09-07 1967-10-17 Morris Mfg Company Detent guide for telescopic tube units
US3534988A (en) * 1968-11-15 1970-10-20 Ite Imperial Corp Tube end mounted sleeve
ES2040525T3 (es) * 1989-05-20 1993-10-16 Carl Froh Rohrenwerk Gmbh & Co Tubo de aspiracion telescopico para un aspirador de polvo.
CA2174050C (fr) * 1995-04-21 2001-07-17 Sadahiro Shimada Aspirateur electrique
CN2245953Y (zh) * 1995-09-07 1997-01-29 苏州工业园区娄葑帕雷米电器厂 吸尘器伸缩长接管
JPH0984728A (ja) * 1995-09-20 1997-03-31 Mitsubishi Electric Corp 電気掃除機
US5742976A (en) * 1995-12-18 1998-04-28 Black & Decker Inc. Holding device for an end of a hose in a vacuum apparatus
US6254305B1 (en) * 1999-07-14 2001-07-03 Curtis E. Taylor Locking mechanism for telescopically adjustable extension pole
GB0105781D0 (en) * 2001-03-08 2001-04-25 Dyson Ltd Wand assembly for a vacuum cleaner
DE102004062207B3 (de) * 2004-12-23 2005-10-20 Kirchner Fraenk Rohr Verbindungseinrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929399A1 (de) * 1989-09-05 1991-03-21 Heidemann Werke Teleskopierbare rohrverbindung
US5098241A (en) * 1991-02-05 1992-03-24 Xyzyx International Corp. Variable length telescopic connector and method for use

Also Published As

Publication number Publication date
DE502006008704D1 (de) 2011-02-24
US8727383B2 (en) 2014-05-20
CN1985739A (zh) 2007-06-27
EP1806088B1 (fr) 2011-01-12
CN1985739B (zh) 2010-11-03
ATE494828T1 (de) 2011-01-15
DE102005061923B3 (de) 2007-02-08
EP1806088A3 (fr) 2008-08-06
US20070143955A1 (en) 2007-06-28

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