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EP0293518A1 - Tuyau de succion téléscopique pour un aspirateur - Google Patents

Tuyau de succion téléscopique pour un aspirateur Download PDF

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Publication number
EP0293518A1
EP0293518A1 EP87119407A EP87119407A EP0293518A1 EP 0293518 A1 EP0293518 A1 EP 0293518A1 EP 87119407 A EP87119407 A EP 87119407A EP 87119407 A EP87119407 A EP 87119407A EP 0293518 A1 EP0293518 A1 EP 0293518A1
Authority
EP
European Patent Office
Prior art keywords
locking
vacuum cleaner
suction pipe
cleaner suction
pipe according
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
EP87119407A
Other languages
German (de)
English (en)
Other versions
EP0293518B1 (fr
Inventor
August 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.)
Carl Froh GmbH
Original Assignee
Carl Froh Rohrenwerk & Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6328954&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0293518(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE3718578A external-priority patent/DE3718578C1/de
Application filed by Carl Froh Rohrenwerk & Co GmbH filed Critical Carl Froh Rohrenwerk & Co GmbH
Priority to AT87119407T priority Critical patent/ATE72743T1/de
Publication of EP0293518A1 publication Critical patent/EP0293518A1/fr
Application granted granted Critical
Publication of EP0293518B1 publication Critical patent/EP0293518B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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, as has become known according to the preamble of claim 1 by US-PS 32 44 437.
  • the known vacuum cleaner suction tube is felt to be disadvantageous because a separately riveted, provided with slot-like locking recesses locking bar requires a large amount of production.
  • the known vacuum cleaner suction pipe has on the outside on the outer pipe a spring clip with a hook-shaped cut-out, projecting latching tongue as a latching body.
  • the hook-shaped latching tongue extends through the outer tube wall and can thus engage in the slots in the latching strip. Every time the length of the vacuum cleaner suction tube changes, i.e. Shortened or lengthened, an upwardly bent operating end of the spring clip must be raised to release the hook-shaped locking body from the respective locking recess. The operation of the known vacuum cleaner suction tube is perceived as in need of improvement.
  • the outer tube of the known vacuum cleaner suction tube which has a noticeably larger diameter than the inner tube, has a slant in the region of its point of overlap with the inner tube inwardly projecting ring apron with a window-like notch, which takes up the cross section of the riveted locking bar. Locking bar and window-like notch cause an axially extending positive locking to prevent relative rotation between the outer and inner tube.
  • This design of the anti-twist device further increases the already high technical manufacturing effort.
  • the object of the invention is to create a telescopic vacuum cleaner suction pipe that is simpler both in terms of production technology and in terms of operation. This object is achieved in accordance with the characterizing part of patent claim 1.
  • the locking bar which extends only over a relatively small circumferential area of the inner tube, is formed with its locking recesses in the wall of the inner tube.
  • the inner tube is a sheet steel tube
  • the locking bar can be stamped in a simple manner.
  • the inner tube is provided with an axial groove or an axial spring which is molded or impressed into the wall and which cooperate with a correlating configuration (axial spring or axial groove) of the outer tube and thus one easy to manufacture fuse against relative rotation.
  • DE-OS 31 02 898 it is only known to provide threaded ribs which extend over the entire circumference in the end region of a vacuum cleaner inner tube and which cannot be compared with the catches according to the invention.
  • the threaded ribs which are provided over a partial circumference of an outer tube of an obviously previously used telescopic vacuum cleaner suction tube and which serve for a clamping lock by means of a clamping sleeve are comparable with the arrangement according to the invention. It is also known (DE-AS 26 18 065 see FIG. 6, item 24) to provide an outer tube of a telescopic vacuum cleaner suction tube with an inwardly projecting axial rib, but this known axial rib is not used to prevent rotation between the inside - And outer tube, but rather the rotational driving of a sprag.
  • the latching body according to the invention forms a separate component that is independent of the hold-down device.
  • the hold-down device is designed as a control body, which either offers a free or escape space for the latching body when the latching body is to disengage from the respective latching recess or which holds the latching body in a certain latching recess in the event of locking.
  • the latching body according to the invention is therefore independent in its movement when the hold-down device is unlocked.
  • a telescopic vacuum cleaner suction tube is generally designated by the reference number 10.
  • the suction pipe has an inside tube 11 and an outer tube 12.
  • the outer tube 12 forms a sleeve-like widening 13.
  • a guide body 15 made of plastic with an essentially circular cross section is arranged inside the overall space designated by 14 between the inner tube outer jacket surface 34 and the outer tube inner jacket surface 33.
  • a guide body 15 Received in the guide body 15 is in each case a slide 16 (FIGS. 1 and 2,) 16a, (FIG. 3) which is translationally movable along the pipe longitudinal axis x (FIG. 3) and a slide 16b which is rotatable about the pipe longitudinal axis x along the circumferential direction u (FIGS. 4 and 5 ).
  • Each slide 16, 16a, 16b passes through the outer tube wall 13 with an actuating shoulder 17 within a recess 18.
  • Each actuating shoulder 17 in turn carries a handle 19.
  • Each inner tube 11 has a locking bar 20 with locking recesses 21.
  • the inner tube 11 and outer tube 12 are made of sheet steel.
  • the locking bar 20 with the locking recesses 21 is stamped into the inner tube wall 22 as a relatively narrow strip-like strip.
  • the embossing is in this case such that each latching recess 21 is distanced from the respectively adjacent latching recess 21 via an undeformed circular cylindrical tube wall region 23.
  • Each latching recess 21 has an acute-angled angle to the tube on one axial end side Longitudinal axis x extending sliding flank 24 for a roller-like locking body 25 (FIGS. 1 and 2), for a web-like locking body 25a (FIG. 3) or for a ball locking body 25b (FIGS. 4 and 5).
  • each locking recess 21 On the other axial end side of each locking recess 21, a locking or inhibiting flank 26 is formed with a relatively small radius of curvature.
  • each latching recess 21 on its axial end side facing the suction attachment (the suction attachment is not shown, but indicated with an S and an arrow), such as a suction brush or suction nozzle, has the curved locking or inhibiting flank 26.
  • the respective longitudinal axes of the latching recesses 21 (FIGS. 1-3) intended for elongated latching bodies 25, 25a extend secantially to the body of the inner tube 11, the cross section of which is circular-cylindrical.
  • the latching recesses 21 corresponding to FIGS. 4 and 5 are, at least in cross section according to FIG. 5, essentially spherical in shape, while the associated latching body 25b itself - as already mentioned - has a spherical shape.
  • the slider 16, 16a, 16b opens the connection to the free space 14, so that the latching body 25, 25a, 25b is able to slide out of the latching recess 21 (ie to decouple the two telescopic tubes 11, 12) as soon as a relative movement of the two telescopic tubes 11, 12 to one another is initiated.
  • the latching body 25, 25a, 25b has a relatively small mass, so that a smooth-running latching process, that is to say an easy-to-move displaceability of the two tubes 11, 12, is ensured.
  • roller-shaped latching body 25 is located in a latching recess 21 and is held down there by means of a locking lug 27 of the slide 16.
  • the locking or inhibiting flanks 26 serve, on the one hand, for a latching mark that can be felt or heard during the adjustment movement and, on the other hand, offer additional securing of the locking position (FIGS. 1, 3 to 5) also in the event that the pressure force in the direction d ( strong impact of the suction attachment S against an obstacle during suction work) should be relatively large. It is also the case in the embodiment according to FIG. 1 that when a relatively large force occurs in the direction d, an initial rolling movement of the roller body 25 causes a movement of the locking lug 27 in the direction z or g, that is to say an additional securing of the locking position. To this extent, the roller body 25 has approximately the function of a pinion rolling between two racks.
  • each latching body 25, 25a, 25b is carried along or positioned approximately in the manner of a ball cage by means of an opening 29 on the slide side.
  • the function is similar to that in the exemplary embodiment according to FIGS. 1 and 2.
  • the web-like latching body 25a is part of a rectangular bracket or frame made of wire, designated overall by 30.
  • the transverse web 31 of the bracket 30 facing away from the locking web 25a is accommodated within an elongated hole 32 on the slide side. It is conceivable that the elongated hole 32 allows the slide 16a to be displaced in the direction o, so that the locking lug 27 can establish the access of the latching body 25a to the free space 14 in order to release the locking state, as shown in FIG. 3.
  • FIGS. 4 and 5 The function of the embodiment according to FIGS. 4 and 5 is fundamentally comparable to the embodiments according to FIGS. 1 to 3, with the difference that the actuation of the slide 16b is not translatory in the direction of the longitudinal pipe thing x, but rather rotatory about the longitudinal pipe axis x around in accordance with the arrows in Fig. 5 o in the opening direction and g in the closing direction. Even with this out management example (Fig. 5), a locking lug 27 can be seen.
  • the arrangement 16, 16a, 16b, 25, 25a, 25b could be replaced by a ball catch known per se.
  • the handle 19 could be retained or even omitted.
  • the strength of the detent force would have to be varied by the restoring force of a ball detent spring, not shown, which would represent the hold-down device in this case.
  • the bracket 30 could be guided with its two longitudinal legs within the free space 14 between the outer tube inner jacket surface 33 and the inner tube outer jacket surface 34 within the guide body 15 and against the restoring force of one or two springs (hold-down device), not shown, can be disengaged from the latching recesses 21.
  • the latching body 25a and the correlating latching recesses 21 would not be arranged on the lower side of the inner tube 11, as shown in FIG.
  • the bead-like axial groove 35 would then - not as shown in Fig. 3 - provided below, but rather diametrically opposite at the top.
  • An anti-rotation device between the inner tube 11 and outer tube 12 comes about as follows: The on Outer tube 12 within the widening 13 in a manner not shown in more detail (for example by gluing), rotationally secured guide body 15 engages (see FIG. 5) with an axial spring 36 in the axial longitudinal bead 35 provided on the inner tube side. At the same time, an air seal generating incorrect air is achieved here.
  • the arrangement is otherwise such that the front outer region of the guide body 15 engages over an undeformed tube region 23 when the latching bodies 25, 25a, 25b are located in a latching recess 21.
  • the invention also provides for axial groove 35 and latching recesses 21 to be superimposed.
  • the spherical locking recesses 21 according to FIGS. 4 and 5 could be embossed in the deepest of an axial groove 35 offset circumferentially by 180 ° (the spring 36 would then also be offset).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Electric Suction Cleaners (AREA)
EP87119407A 1987-06-03 1987-12-31 Tuyau de succion téléscopique pour un aspirateur Expired - Lifetime EP0293518B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87119407T ATE72743T1 (de) 1987-06-03 1987-12-31 Teleskopierbares staubsauger-saugrohr.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3718578A DE3718578C1 (de) 1987-06-03 1987-06-03 Teleskopierbares Staubsauger-Saugrohr
DE3718578 1987-06-03

Publications (2)

Publication Number Publication Date
EP0293518A1 true EP0293518A1 (fr) 1988-12-07
EP0293518B1 EP0293518B1 (fr) 1992-02-26

Family

ID=6328954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87119407A Expired - Lifetime EP0293518B1 (fr) 1987-06-03 1987-12-31 Tuyau de succion téléscopique pour un aspirateur

Country Status (5)

Country Link
EP (1) EP0293518B1 (fr)
AT (1) ATE72743T1 (fr)
DE (1) DE3776902D1 (fr)
ES (1) ES2030706T3 (fr)
GR (1) GR3004236T3 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520534A1 (fr) * 1991-06-28 1992-12-30 OMEC S.p.A. Dispositif téléscopique pour tuyau d'aspirateur
DE19524290C1 (de) * 1995-07-06 1996-08-14 Froh Roehren Teleskopierbares Staubsauger-Saugrohr
FR2733407A1 (fr) * 1995-04-27 1996-10-31 Zelmer Tube d'aspiration telescopique pour un aspirateur
FR2755000A1 (fr) * 1996-10-28 1998-04-30 Zelmer Paroi telescopique d'aspiration d'un aspirateur
WO1999035409A1 (fr) * 1998-01-07 1999-07-15 Tubalco Manufacturing Pty. Ltd. Dispositif de blocage pour tubes telescopiques
WO2000000075A1 (fr) * 1998-06-30 2000-01-06 Daewoo Electronics Co., Ltd. Ensemble tube-rallonge telescopique d'aspirateur
WO2001065992A1 (fr) * 2000-03-07 2001-09-13 Eunsung Electronics Co., Ltd Dispositif d'entrainement automatique d'une rallonge de tuyau d'aspiration pour aspirateur menager
US6435754B1 (en) 1999-10-11 2002-08-20 Omec S.P.A. Telescopic extension for an electric household appliance
US6612617B2 (en) 2000-09-30 2003-09-02 Weier Xu Telescopic dust-collecting pipe for vacuum cleaner
US6634674B1 (en) 2000-01-12 2003-10-21 Weier Xu Telescopic dust-collecting pipe for vacuum cleaner
WO2007030979A1 (fr) * 2005-09-16 2007-03-22 Yonglong Wu Tube d'aspiration de poussiere telescopique dans un aspirateur
DE102006006189B3 (de) * 2006-02-09 2007-06-06 Wolfgang Hermes Futter- und Tränkvorrichtung für Haustiere
CN100367902C (zh) * 2005-10-24 2008-02-13 徐为尔 吸尘器上的伸缩式吸管
CN1781438B (zh) * 2004-11-22 2011-08-10 胡佛有限公司 真空吸尘器的伸长杆
EP2769659A3 (fr) * 2013-02-26 2017-11-15 Fischer Rohrtechnik GmbH Tuyau d'aspiration pour aspirateur avec région d'encliquetage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018035197A1 (fr) 2016-08-17 2018-02-22 D & M Designs Llc Poteau télescopique rétractable

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1263595A (fr) * 1959-07-20 1961-06-09 Electrische App N En Metaalfab Raccord d'accouplement
US3244437A (en) * 1964-01-28 1966-04-05 Electrolux Corp Adjustable length vacuum cleaner wand
DE2618065A1 (de) * 1976-04-24 1977-10-27 Froh Roehren Teleskopierbare rohranordnung, beispielsweise saugrohranordnung von staubsaugern
DE3102898A1 (de) * 1981-01-29 1982-08-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Klemmvorrichtung an zwei ineinanderschiebbaren saugrohren
EP0123428A1 (fr) * 1983-03-25 1984-10-31 Electrolux Corporation Tube d'aspirateur de poussière
US4577837A (en) * 1984-07-30 1986-03-25 Marvin Berg Locking mechanism for extendible telescoping tubular members

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3351363A (en) * 1964-12-23 1967-11-07 Electrolux Corp Adjustable length wand
US3351359A (en) * 1964-12-23 1967-11-07 Electrolux Corp Adjustable length wand

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1263595A (fr) * 1959-07-20 1961-06-09 Electrische App N En Metaalfab Raccord d'accouplement
US3244437A (en) * 1964-01-28 1966-04-05 Electrolux Corp Adjustable length vacuum cleaner wand
DE2618065A1 (de) * 1976-04-24 1977-10-27 Froh Roehren Teleskopierbare rohranordnung, beispielsweise saugrohranordnung von staubsaugern
DE3102898A1 (de) * 1981-01-29 1982-08-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Klemmvorrichtung an zwei ineinanderschiebbaren saugrohren
EP0123428A1 (fr) * 1983-03-25 1984-10-31 Electrolux Corporation Tube d'aspirateur de poussière
US4577837A (en) * 1984-07-30 1986-03-25 Marvin Berg Locking mechanism for extendible telescoping tubular members

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0520534A1 (fr) * 1991-06-28 1992-12-30 OMEC S.p.A. Dispositif téléscopique pour tuyau d'aspirateur
EP0601620A2 (fr) * 1991-06-28 1994-06-15 OMEC S.p.A. Dispositif téléscopique pour tuyau d'aspirateur
US5332266A (en) * 1991-06-28 1994-07-26 Omec S.P.A. Telescopic extension for a vacuum cleaner
EP0601620A3 (fr) * 1991-06-28 1995-05-17 Omec Spa Dispositif téléscopique pour tuyau d'aspirateur.
TR28876A (tr) * 1991-06-28 1997-07-17 Omec Spa Bir elektrikli süpürge icin icice gecen uzanti parcasi.
FR2733407A1 (fr) * 1995-04-27 1996-10-31 Zelmer Tube d'aspiration telescopique pour un aspirateur
DE19615814A1 (de) * 1995-04-27 1996-10-31 Zelmer Teleskopierbares Staubsaugerrohr
DE19615814C2 (de) * 1995-04-27 1998-01-29 Zelmer Teleskopierbares Staubsaugerrohr
DE19524290C1 (de) * 1995-07-06 1996-08-14 Froh Roehren Teleskopierbares Staubsauger-Saugrohr
DE19720003C2 (de) * 1996-10-28 2003-05-28 Zelmer Rzeszow Teleskopsaugrohr insbesondere für einen Staubsauger
FR2755000A1 (fr) * 1996-10-28 1998-04-30 Zelmer Paroi telescopique d'aspiration d'un aspirateur
WO1999035409A1 (fr) * 1998-01-07 1999-07-15 Tubalco Manufacturing Pty. Ltd. Dispositif de blocage pour tubes telescopiques
WO2000000075A1 (fr) * 1998-06-30 2000-01-06 Daewoo Electronics Co., Ltd. Ensemble tube-rallonge telescopique d'aspirateur
US6237962B1 (en) 1998-06-30 2001-05-29 Daewoo Electronics Co., Ltd. Telescopable wand assembly of a vacuum cleaner
US6435754B1 (en) 1999-10-11 2002-08-20 Omec S.P.A. Telescopic extension for an electric household appliance
US6634674B1 (en) 2000-01-12 2003-10-21 Weier Xu Telescopic dust-collecting pipe for vacuum cleaner
WO2001065992A1 (fr) * 2000-03-07 2001-09-13 Eunsung Electronics Co., Ltd Dispositif d'entrainement automatique d'une rallonge de tuyau d'aspiration pour aspirateur menager
US6612617B2 (en) 2000-09-30 2003-09-02 Weier Xu Telescopic dust-collecting pipe for vacuum cleaner
CN1781438B (zh) * 2004-11-22 2011-08-10 胡佛有限公司 真空吸尘器的伸长杆
WO2007030979A1 (fr) * 2005-09-16 2007-03-22 Yonglong Wu Tube d'aspiration de poussiere telescopique dans un aspirateur
CN100367902C (zh) * 2005-10-24 2008-02-13 徐为尔 吸尘器上的伸缩式吸管
DE102006006189B3 (de) * 2006-02-09 2007-06-06 Wolfgang Hermes Futter- und Tränkvorrichtung für Haustiere
EP2769659A3 (fr) * 2013-02-26 2017-11-15 Fischer Rohrtechnik GmbH Tuyau d'aspiration pour aspirateur avec région d'encliquetage

Also Published As

Publication number Publication date
EP0293518B1 (fr) 1992-02-26
GR3004236T3 (fr) 1993-03-31
DE3776902D1 (de) 1992-04-02
ATE72743T1 (de) 1992-03-15
ES2030706T3 (es) 1992-11-16

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