EP0399177B1 - Telescopic vacuum cleaner suction hose - Google Patents

Telescopic vacuum cleaner suction hose Download PDF

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Publication number
EP0399177B1
EP0399177B1 EP90105884A EP90105884A EP0399177B1 EP 0399177 B1 EP0399177 B1 EP 0399177B1 EP 90105884 A EP90105884 A EP 90105884A EP 90105884 A EP90105884 A EP 90105884A EP 0399177 B1 EP0399177 B1 EP 0399177B1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
cleaner suction
holding
bar spring
tube
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.)
Expired - Lifetime
Application number
EP90105884A
Other languages
German (de)
French (fr)
Other versions
EP0399177A1 (en
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 & CO
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
Priority claimed from DE3916531A external-priority patent/DE3916531C1/en
Application filed by Carl Froh Rohrenwerk & Co GmbH filed Critical Carl Froh Rohrenwerk & Co GmbH
Priority to AT90105884T priority Critical patent/ATE86836T1/en
Publication of EP0399177A1 publication Critical patent/EP0399177A1/en
Application granted granted Critical
Publication of EP0399177B1 publication Critical patent/EP0399177B1/en
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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32426—Plural distinct positions
    • Y10T403/32442—At least one discrete position
    • Y10T403/32451—Step-by-step adjustment
    • Y10T403/32459—Retainer extends through aligned recesses

Definitions

  • the locking bar and push handle are located at diametrically opposite circumferential locations of the vacuum cleaner suction pipe.
  • a bracket is provided for the mechanical movement coupling between the push handle and the holding-down device actuating the latching body, the two longitudinal legs of which are guided within a guide body which fills the annular space between the cylindrical end expansion of the outer tube and the inner tube.
  • the hold-down device must be operated against the restoring force of two springs in the disengaging direction of the locking body.
  • the invention has for its object to make such a suction pipe simpler and, if possible, easier to assemble.
  • the invention is satisfied only with a bar spring wrapping around the guide body at least on a partial circumferential length. One end of which is clamped in the guide body.
  • the bar spring causes a positive movement coupling between the hold-down device and push handle, which are arranged on two diametrically opposite sides of the vacuum cleaner suction pipe. The bar spring is biased in the locking direction of the locking body.
  • the bar spring has no special guide channels - such as e.g. for helical compression springs - required, as it is positively guided in the annular space between the guide body and the inner surface of the cylindrical outer tube end expansion.
  • An overlap zone U on the rod spring side is supported between the free ends 23 and 24 of two, approximately finger-like ribs 25, 26 running parallel to the tube axis x and opposing one another. From Fig. 1 it is to be provided that the overlap zone Ü is in the immediate vicinity of the clamping end 20 on the rod spring side, which also runs parallel to the tube axis x.

Abstract

The inside pipe wall of a telescopic vacuum cleaner suction pipe (10) having an outside pipe (11) and an inside pipe (12) has an impressed catch strip (17) with catch recesses (18), with which strip a catch element (35) interacts. The latter can be disengaged against the restoring force of a spring by means of a holding-down device (30) which is actuated by a sliding handle in the axial direction (x) of the pipe. The annular space (R) formed between a cylindrical end widening (13) of the outside pipe (11) and the inside pipe (12) is filled by a tubular guide element (16) for the holding-down device (30), sliding handle (28), catch element (35) and spring (19). The sliding handle (28) and catch strip (17) are arranged on two diametrically opposite circumferential positions of the vacuum cleaner suction pipe (10). <??>A constructional simplification and ease of assembly of the vacuum cleaner suction pipe (10) result from the fact that the holding-down device (30) is arranged directly adjacent to the catch strip (17) inside the annular space (R) between the outside (11) and inside pipe (12), that the guide element (16) maintains tension on one end of a bar spring (19) which is wound at least partially around the guide element (16) inside the annular space (R) and couples the movement of the holding-down device (30) and the sliding handle (28), which penetrates the wall of the end widening (13). <IMAGE>

Description

Die Erfindung betrifft ein teleskopierbares Staubsaugen-Saugrohr, wie es entsprechend dem Oberbegriff des Anspruchs 1 durch die DE-PS 37 18 578 (s. dort Sp. 6 Z. 49-65) bekanntgeworden ist.The invention relates to a telescopic vacuum suction pipe, as it has become known according to the preamble of claim 1 by DE-PS 37 18 578 (see Sp. 6 Z. 49-65).

Bei der vorbeschriebenen bekannten Ausführungsform befinden sich Rastleiste und Schiebegriff an einander diametral gegenüberliegenden Umfangsstellen des Staubsauger-Saugrohrs. Zur mechanischen Bewegungskupplung zwischen Schiebegriff und dem den Rastkörper betätigenden Niederhalter ist ein Bügel vorgesehen, dessen beide Längsschenkel innerhalb eines Führungskörpers geführt sind, der den Ringraum zwischen zylindrischer Endaufweitung des Außenrohrs und dem Innenrohr ausfüllt. Der Niederhalter ist entgegen der Rückstellkraft zweier Federn im Ausrastsinne des Rastkörpers zu betätigen.In the known embodiment described above, the locking bar and push handle are located at diametrically opposite circumferential locations of the vacuum cleaner suction pipe. A bracket is provided for the mechanical movement coupling between the push handle and the holding-down device actuating the latching body, the two longitudinal legs of which are guided within a guide body which fills the annular space between the cylindrical end expansion of the outer tube and the inner tube. The hold-down device must be operated against the restoring force of two springs in the disengaging direction of the locking body.

Das vorbekannte teleskopierbare Staubsauger-Saugrohr gewährt insbesondere den ästhetischen Vorteil, daß die Rastleiste dem Blick des Betrachters entzogen ist, weil diese sich auf der dem nach oben weisenden Schiebegriff abgewandten Seite, also der Unterseite des Staubsaugerrohrs, befindet.The known telescopic vacuum cleaner suction tube provides in particular the aesthetic advantage that the locking bar is hidden from the viewer's eye, because it is on the side facing away from the upward push handle, that is, the underside of the vacuum cleaner tube.

Ausgehend von dem vorbeschriebenen teleskopierbaren Staubsauger-Saugrohr (DE-PS 37 18 578 Sp. 6 Z. 49-65), liegt der Erfindung die Aufgabe zugrunde, ein solches Saugrohr einfacher und nach Möglichkeit montagefreundlicher zu gestalten.Starting from the telescopic vacuum cleaner suction pipe described above (DE-PS 37 18 578 Sp. 6 Z. 49-65), the invention has for its object to make such a suction pipe simpler and, if possible, easier to assemble.

Diese Aufgabe wurde entsprechend dem Kennzeichenteil des Anspruchs 1 gelöst.This object was achieved in accordance with the characterizing part of claim 1.

Während beim vorbeschriebenen Stand der Technik Einzelfedern, z.B. Schraubendruckfedern, vorausgesetzt werden müssen, begnügt sich die Erfindung nur mit einer den Führungskörper mindestens auf einer Teilumfangslänge umwindenden Stabfeder. Deren eines Ende ist im Führungskörper eingespannt. Außerdem bewirkt die Stabfeder eine formschlüssige Bewegungskupplung zwischen Niederhalter und Schiebegriff, die an zwei diametral gegenüberliegenden Seiten des Staubsauger-Saugrohrs angeordnet sind. Die Stabfeder ist hierbei in Einrastrichtung des Rastkörpers vorgespannt.While in the prior art described above, single springs, e.g. Helical compression springs, must be assumed, the invention is satisfied only with a bar spring wrapping around the guide body at least on a partial circumferential length. One end of which is clamped in the guide body. In addition, the bar spring causes a positive movement coupling between the hold-down device and push handle, which are arranged on two diametrically opposite sides of the vacuum cleaner suction pipe. The bar spring is biased in the locking direction of the locking body.

Entsprechend der Erfindung ist es vorteilhaft, daß die Stabfeder keine besonderen Führungskanäle - wie z.B. für Schraubendruckfedern - benötigt, da sie im Ringraum zwischen Führungskörper und der Innenmantelfläche der zylindrischen Außenrohr-Endaufweitung gewissermaßen zwangsgeführt ist.According to the invention, it is advantageous that the bar spring has no special guide channels - such as e.g. for helical compression springs - required, as it is positively guided in the annular space between the guide body and the inner surface of the cylindrical outer tube end expansion.

Eine zusätzliche bauliche Vereinfachung ergibt sich per se dadurch, daß Stabfeder und mechanische Mittel zur Bewegungskupplung (gemäß der DE-PS 37 18 578 zwei besondere Bügelschenkel) ein und dasselbe Bauteil darstellen.An additional structural simplification results per se from the fact that the rod spring and mechanical means for the motion coupling (according to DE-PS 37 18 578 two special stirrup legs) represent one and the same component.

Eine besonders vorteilhafte Ausführungsform besteht entsprechend der Erfindung darin, daß die Stabfeder sich etwa schraubenlinienförmig erstreckt, also in einer zur Radialebene des Staubsauger-Saugrohrs geneigten Ebene angeordnet ist. Auf diese Weise erzielt man bei einem sich parallel zur Rohrachse erstreckenden Einspannende eine vorteilhafte Vorspannung der Stabfeder, die in weiterer Ausgestaltung der Erfindung den Führungskörper unter Bildung einer endseitigen Überlappungszone auf gesamter Umfangslänge umgibt.A particularly advantageous embodiment according to the invention is that the bar spring extends approximately helically, that is, is arranged in a plane inclined to the radial plane of the vacuum cleaner suction tube. In this way, with a clamping end extending parallel to the tube axis, an advantageous pretensioning of the bar spring is achieved, which in a further embodiment of the invention surrounds the guide body to form an end-side overlap zone over the entire circumferential length.

In der Überlappungszone findet eine Relativbewegung zwischen den beiden aneinanderliegenden Stabfederbereichen statt, wenn diese mittels des Schiebegriffs bewegt wird.In the overlap zone there is a relative movement between the two adjoining bar spring areas when this is moved by means of the push handle.

Weitere Erfindungsmerkmale ergeben sich aus den Unteransprüchen.Further features of the invention result from the subclaims.

In den Zeichnungen ist ein bevorzugtes Ausführungsbeispiel der Erfindung näher dargestellt, es zeigen

  • Fig. 1 eine Teilansicht eines Staubsauger-Saugrohrs, bei welchem die Außenrohr-Endaufweitung teilweise abgedeckt dargestellt ist,
  • Fig. 2 in Anlehnung an Fig. 1 einen Axialschnitt mit in Raststellung befindlichem Rastkörper und
  • Fig. 3 analog zu Fig. 2 eine Darstellung mit ausgerastetem Rastkörper.
In the drawings, a preferred embodiment of the invention is shown in more detail, show it
  • 1 is a partial view of a vacuum cleaner suction tube, in which the outer tube end expansion is shown partially covered,
  • Fig. 2 based on Fig. 1 is an axial section with the locking body located in the locking position and
  • Fig. 3 analogous to Fig. 2 is an illustration with disengaged locking body.

In den Zeichnungen ist ein teleskopierbares Staubsauger- Saugrohr insgesamt mit der Bezugsziffer 10 bezeichnet. Das Saugrohr 10 weist ein nur teilweise dargestelltes Außenrohr 11 und ein Innenrohr 12 auf, die teleskopierbar ineinander geschoben sind.In the drawings, a telescopic vacuum cleaner suction tube is generally designated by the reference number 10. The suction pipe 10 has an outer pipe 11 and an inner pipe 12, which are only partially shown, and which are telescopically pushed into one another.

Das Außenrohr 11 ist mit einer zylindrischen Endaufweitung 13 versehen, deren Innenmantelfläche 14 mit der Außenmantelfläche 15 des Innenrohrs 12 einen Ringraum R begrenzt.The outer tube 11 is provided with a cylindrical end widening 13, the inner circumferential surface 14 of which defines an annular space R with the outer circumferential surface 15 of the inner tube 12.

Der Ringraum R ist größtenteils von einem Führungskörper 16, zweckmäßigerweise ein Kunststoffspritzgußteil, ausgefüllt. Der Führungskörper 16 dichtet zugleich die Teleskopfuge gegen Fehlluft ab.The annular space R is largely filled by a guide body 16, advantageously a plastic injection molded part. The guide body 16 also seals the telescopic joint against incorrect air.

Das Innenrohr 12 ist mit einer Rastleiste 17 versehen, welche aus parallel zur Rohrachsrichtung aufeinanderfolgenden Rasteinprägungen 18 besteht. Die Rohrachse (Rohrlängsmittelachse) ist strichpunktiert angedeutet und mit x bezeichnet.The inner tube 12 is provided with a locking bar 17 which consists of locking impressions 18 which follow one another parallel to the tube axis direction. The pipe axis (pipe longitudinal center axis) is indicated by dash-dotted lines and designated by x.

Aus Fig. 1 ist im Zusammenhang mit den übrigen Fig. deutlich eine Stabfeder 19 aus Runddraht-Federstahl zu ersehen, welche den Führungskörper 16 schraubenlinienförmig umwindet, also sich größtenteils in einer zur Radialebene des Saugrohrs 10 geneigt angeordneten Ebene E befindet.From FIG. 1, in connection with the other FIGS., A rod spring 19 made of round wire spring steel can be clearly seen, which winds around the guide body 16 in a helical manner, that is to say it is largely located in a plane E which is inclined to the radial plane of the suction pipe 10.

Das sich parallel zur Rohrachse x erstreckende Einspannende 20 der Stabfeder 19 ist in einer axial verlaufenden, radial nach außen offenen, in der äußeren Mantelfläche 21 des Führungskörpers 16 vorgesehenen Nut 22 einsteckgehaltert.The clamping end 20 of the bar spring 19, which extends parallel to the tube axis x, is inserted in an axially extending, radially outwardly open groove 22 provided in the outer lateral surface 21 of the guide body 16.

Zur Erhöhung der Vorspannkraft der Stabfeder 19 können auch deren beide Enden in je einer gesonderten führungskörperseitigen Einspannstelle gehalten sein. Die Vorspannkraft der Stabfeder 19 kann auch durch unterschiedliche Federdrahtstärken oder durch konstruktive Abknickungen der Feder varriiert werden.To increase the pretensioning force of the bar spring 19, both ends thereof can also be held in a separate clamping point on the guide body side. The biasing force of the bar spring 19 can also be varied by different spring wire thicknesses or by constructive kinks of the spring.

Eine stabfederseitige Überlappungszone Ü stützt sich hierbei zwischen den freien Stirnenden 23 und 24 zweier parallel zur Rohrachse x verlaufender, einander entgegengerichteter, etwa fingerartiger Rippen 25, 26 ab. Aus Fig. 1 ist zu versehen, daß sich die Überlappungszone Ü in unmittelbarer Nähe des stabfederseitigen Einspannendes 20, das ebenfalls parallel zur Rohrachse x verläuft, befindet.An overlap zone U on the rod spring side is supported between the free ends 23 and 24 of two, approximately finger-like ribs 25, 26 running parallel to the tube axis x and opposing one another. From Fig. 1 it is to be provided that the overlap zone Ü is in the immediate vicinity of the clamping end 20 on the rod spring side, which also runs parallel to the tube axis x.

Wie aus den Fig. 2 und 3 zu ersehen, greift die Stabfeder 19 in eine nach außen offene Mitnehmernut 27 des Schiebegriffs 28 und in eine ebenfalls nach außen offene Mitnehmernut 29 des Niederhalters 30 ein.As can be seen from FIGS. 2 and 3, the bar spring 19 engages in a driver groove 27 of the push handle 28 which is open to the outside and in a driver groove 29 of the hold-down device 30 which is also open to the outside.

Der Schiebegriff 28 durchsetzt mit einem aufgerasteten Griffmuldenkörper 31 die Endaufweitung 13 in einem Führungsschlitz 32. Schiebegriff 28 und Niederhalter 30 sind in führungskörperseitigen Führungsnuten 33, 34 parallel zur Rohrachse x geführt.The push handle 28 penetrates the end widening 13 in a guide slot 32 with a snapped-on recessed grip body 31. Push handle 28 and hold-down device 30 are guided in guide grooves 33, 34 on the guide body side parallel to the tube axis x.

Der Niederhalter 30 dient der Betätigung eines etwa walzenartigen Rastkörpers 35. Der walzenartige Rastkörper 35 ist innerhalb einer führungskörperseitigen Kupplungsöffnung 36 radial beweglich, sobald der Niederhalter 30 seine Öffnungsposition gemäß Fig. 3 eingenommen hat und die beiden Rohre 11, 12 gegeneinander verschoben werden. Wenn letzteres geschieht, wird der Rastkörper 35 radial nach außen gedrängt und befindet sich gemäß Fig. 3 außerhalb seiner Raststellung. Der Rastkörper 35 ist an seinen beiden Enden in je einem führungskörperseitigen Führungskanal 37, welcher radial außen von einem Anschlag 38 begrenzt ist, geführt. Die beiden sich im wesentlichen radial erstreckenden Führungskanäle 37 befinden sich selbstverständlich außerhalb der axialen Bewegungsbahn des Niederhalters 30.The hold-down 30 is used to actuate an approximately roller-like locking body 35. The roller-like locking body 35 can be moved radially within a coupling opening 36 on the guide body side as soon as the hold-down 30 has assumed its open position according to FIG. 3 and the two tubes 11, 12 are displaced relative to one another. If the latter happens, the locking body 35 is pushed radially outwards and is located outside of its locking position according to FIG. 3. The latching body 35 is guided at both ends in a guide channel 37 on the guide body side, which is delimited radially on the outside by a stop 38. The two essentially radially extending guide channels 37 are, of course, outside the axial movement path of the hold-down device 30.

Das Staubsauger-Saugrohr 10 wird im einzelnen wie folgt betätigt:
   Wenn der Schiebegriff 28 gemäß seiner in den Fig. 1 und 2 dargestellten Rastposition in Pfeilrichtung a bewegt wird, bewegt sich der diametral gegenüberliegende Bereich (niederhalterseitige Mitnehmernut 29) in Pfeilrichtung b, so daß Schiebegriff 28 und Niederhalter 30 die in Fig. 3 dargestellte Ausrastpostion einnehmen. Die Ausrastbewegung erfolgt hierbei entgegen der Rückstellkraft der Stabfeder 19, wie aus Fig. 1 deutlich zu ersehen ist.The vacuum cleaner suction pipe 10 is operated in detail as follows:
When the push handle 28 is moved in the direction of arrow a in accordance with its latching position shown in FIGS. 1 and 2, the diametrically opposite region (hold-down driver groove 29) moves in the direction of arrow b, so that push handle 28 and hold-down 30 have the latching position shown in FIG. 3 take in. The disengaging movement takes place against the restoring force of the bar spring 19, as can be clearly seen from FIG. 1.

Im Zusammenhang der Zeichnungen ist auch deutlich, daß Stabfeder 19, Schiebegriff 28, Niederhalter 30 und Führungskörper 16 gemeinsam eine leicht montierbare vorgefertigte Montageeinheit bilden, welche nach Einlegen der Rastwalze 35 in die Rastleiste 17 rasch auf das Innenrohr 12 aufgeschoben werden kann. Daraufhin wird das Außenrohr 11 mit seiner Aufweitung 13 über die so gebildete Montageeinheit bis zum führungskörperseitigen ringförmigen Anschlag 39 geschoben. Daraufhin braucht lediglich der Griffmuldenkörper 31 mit seinen Rastöffnungen auf die Rastzapfen 40 des Schiebegriffs 28 aufgerastet zu werden.In the context of the drawings it is also clear that the rod spring 19, push handle 28, hold-down 30 and guide body 16 together form an easy-to-assemble prefabricated assembly unit which can be quickly pushed onto the inner tube 12 after the locking roller 35 has been inserted into the locking bar 17. Thereupon, the outer tube 11 with its widening 13 is pushed over the assembly unit thus formed up to the annular stop 39 on the guide body side. Thereupon, only the recessed grip body 31 needs to be snapped with its latching openings onto the latching pin 40 of the push handle 28.

Eine parallel zur Rohrachse x verlaufende Verdrehsicherungsnut des Innenrohrs 12 ist mit 41 bezeichnet und wirkt mit einem nicht dargestellten federartigen Vorsprung des Führungskörpers 16 zusammen.A rotation-preventing groove of the inner tube 12 running parallel to the tube axis x is designated 41 and acts with one, not shown spring-like projection of the guide body 16 together.

Claims (8)

  1. A telescopic vacuum cleaner suction tube (10) with an outer tube (11) and an inner tube (12), which is secured against rotation relative to the outer tube and whose wall comprises an imprinted locking strip (17) with locking recesses, with which a locking element (35) cooperates, which can be unlocked against the restoring force of a spring (19) by means of a holding-down element (30) driven so as to slide in the axial direction of the tube via a sliding grip (28), the annular chamber formed between a cylindrical end enlargement of the outer tube (11) and the inner tube (12) being filled by a tubular guide element (16) for guiding the holding-down element (30), the sliding grip (28), the locking element (35) and the spring (19), and the sliding grip (28) on the one hand and the locking strip (17) on the other hand being arranged at two diametrally opposed circumferential points of the vacuum cleaner suction tube (10), characterised in that the holding-down element (30) is arranged directly adjacent the locking strip (17) within the annular chamber (R) between the outer tube (11) and the inner tube (12), the guide element (16) clamps one end (20) or both ends of a bar spring (19), which is at least partially wound around the guide element (16) inside the annular chamber (R) and couples the holding-down element (30) and the sliding grip (28) penetrating the wall (at 32) of the end enlargement (13) with one another for movement.
  2. A vacuum cleaner suction tube according to claim 1, characterised in that the bar spring (19) encloses the guide element (16) over the entire circumferential length forming an overlapping zone (Ü) on one side.
  3. A vacuum cleaner suction tube according to claim 1 or claim 2, characterised in that the bar spring overlapping zone (Ü) is supported between the free front ends (23, 24) of two approximately finger-like ribs (25, 26) extending parallel to the tube axis (x) and facing one another.
  4. A vacuum cleaner suction tube according to one of the preceding claims, characterised in that the overlapping zone (Ü) is arranged in the immediate vicinity of the bar spring clamping end (20).
  5. A vacuum cleaner suction tube according to claim 4, characterised in that the bar spring clamping end (20) extends parallel to the tube axis (x).
  6. A vacuum cleaner suction tube according to claim 5, characterised in that the bar spring clamping end (20) is inserted and held in an axially extending, radially opening groove (22) provided in the outer cylindrical surface of the guide element (16).
  7. A vacuum cleaner suction tube according to one of the preceding claims, characterised in that the bar spring (19) extends approximately helically.
  8. A vacuum cleaner suction tube according to one of the preceding claims, characterised in that the bar spring (19) engages in each case in an outwardly opening driving groove (27; 29) extending approximately transverse to the tube axis (x) in the sliding grip and holding-down element.
EP90105884A 1989-05-20 1990-03-28 Telescopic vacuum cleaner suction hose Expired - Lifetime EP0399177B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90105884T ATE86836T1 (en) 1989-05-20 1990-03-28 TELESCOPIC VACUUM CLEANER SUCTION TUBE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3916531 1989-05-20
DE3916531A DE3916531C1 (en) 1989-05-20 1989-05-20 Telescopic vacuum cleaner suction pipe - has ratchet released via linearly displaced slider moved within annular space

Publications (2)

Publication Number Publication Date
EP0399177A1 EP0399177A1 (en) 1990-11-28
EP0399177B1 true EP0399177B1 (en) 1993-03-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90105884A Expired - Lifetime EP0399177B1 (en) 1989-05-20 1990-03-28 Telescopic vacuum cleaner suction hose

Country Status (8)

Country Link
US (1) US5046761A (en)
EP (1) EP0399177B1 (en)
JP (1) JP2844546B2 (en)
AT (1) ATE86836T1 (en)
CA (1) CA2017212C (en)
DD (1) DD300070A5 (en)
DE (1) DE59001030D1 (en)
ES (1) ES2040525T3 (en)

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Also Published As

Publication number Publication date
CA2017212C (en) 1998-08-04
JPH0373121A (en) 1991-03-28
DD300070A5 (en) 1992-05-21
JP2844546B2 (en) 1999-01-06
ATE86836T1 (en) 1993-04-15
EP0399177A1 (en) 1990-11-28
DE59001030D1 (en) 1993-04-22
US5046761A (en) 1991-09-10
CA2017212A1 (en) 1990-11-20
ES2040525T3 (en) 1993-10-16

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