EP0858762B1 - Telescopic vacuum cleaner suction hose - Google Patents

Telescopic vacuum cleaner suction hose Download PDF

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Publication number
EP0858762B1
EP0858762B1 EP97123023A EP97123023A EP0858762B1 EP 0858762 B1 EP0858762 B1 EP 0858762B1 EP 97123023 A EP97123023 A EP 97123023A EP 97123023 A EP97123023 A EP 97123023A EP 0858762 B1 EP0858762 B1 EP 0858762B1
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EP
European Patent Office
Prior art keywords
vacuum cleaner
actuating sleeve
cleaner suction
guide bush
suction 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
EP97123023A
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German (de)
French (fr)
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EP0858762A1 (en
Inventor
Thomas Herbst
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.)
Froh House Tech GmbH and Co KG
Original Assignee
Carl Froh GmbH
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    • 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 outer tube, a one axially extending locking bar carrying inner tube, at least one with the recesses of the Locking bar interacting locking body, the inside one arranged on the outer tube, partly that The inner tube is held, and that the guide bush from an actuating sleeve is surrounded, which at least one escape room for has the locking body, between the guide bush and actuating sleeve to ensure the Locked position is arranged at least one spring element.
  • the object of the invention is therefore to a new telescopic tube adjustment arrangement for vacuum cleaner suction tubes to create which decreased Has assembly effort.
  • the device according to the invention has the essential Advantage that they are particularly easy to assemble is. So the device actually only has three Main components, namely the guide bush, the Actuating sleeve and the ring cap on, all on arranged very easily on the telescopic tubes can be. So first the guide bush is opened the outer tube is clamped, after inserting of the locking body, the actuating sleeve on the guide bush is postponed. After the subsequent one Fastening the spring element can ultimately already the ring cap is motionally connected to the actuating sleeve be so that the device is operational is.
  • the guide bush is opened the outer tube is clamped, after inserting of the locking body, the actuating sleeve on the guide bush is postponed. After the subsequent one Fastening the spring element can ultimately already the ring cap is motionally connected to the actuating sleeve be so that the device is operational is.
  • the device according to the invention the advantage that they are ergonomically favorable Is usable because the entire outer surface of the Actuating sleeve is available as a grip surface.
  • An embodiment of the invention can also do this be characterized in that the spring element as ring-shaped curved bar spring is formed, which on The outer circumference of the guide sleeve at least partially is set.
  • Actuating sleeve and ring cap releasably together connect. This can be done, for example, by means of a thread happen.
  • the invention has in the guide bush arranged recess for the locking body a device for mounting and for at least radially movable Lead the locking body.
  • such a device be designed to hold the locking body, that the guide bush in the area of the recess facing guides is provided in which the one with a guide pin on both ends Locking body is held.
  • Such an adjustment device 10 has one guide bushing 12 fastened on an outer tube 11, one on the guide bushing 12 in the longitudinal axis direction slidably arranged actuating sleeve 13 and a with the actuating sleeve 13 movement-coupled ring cap 14 on, ultimately within the guide bush 12 an inner tube 15 is guided.
  • the adjusting device 10 is shown in the locked state, can one can recognize the unlocked state in FIGS. 4 to 6.
  • the guide bushing 12 is shown.
  • the guide bushing 12 has one on the Outer tube 11 attached area 16 and substantially the actuating sleeve 13 opposite Area 17 on.
  • the area 17 of the guide bush 12 is provided with guide ribs 18 in the side and a lower portion of an annular groove 19 to form an annular spring 20 (see FIG. 20). Expanded in the upper area of the guide bush 12 the annular groove 19 in the area of the guide ribs 18 to a range of motion A for the ring spring 20, the function of which will be described in detail below is explained.
  • the guide bush 12 with one arranged transversely to its longitudinal extent Recess 21 for receiving one shown in Fig. 12 Blocking body 22 provided.
  • the recess has 21 a pocket-like guide at both ends 23, which makes it possible during pre-assembly locking body 22 provided with end pins 24 from above into the recess 21 without this falls through.
  • actuating sleeve 13 is the actuating sleeve 13 shown. You can see an overlap area 25, which in the assembled state more or less pushes on the area 16 of the guide bush 12, an area 26 for attaching the ring cap 14 serves and an intermediate area 27, the inner tube side two recesses 28 and 29 for has the locking body 22.
  • An outer peripheral surface F of the actuating sleeve 13 ultimately serves as an actuating surface for the handle hand, the actuating surface - as not shown - also an ergonomic one have favorable shape adapted to the hand of the handle can.
  • the ring cap 14 has a fastening area 30 on that provided with locking projections 31 is, which with a sawtooth-shaped internal locking 32 of the area 26 of the actuating sleeve 13 correspond. Beyond that is special 17 that the ring cap 14 on the inside of the tube two spaced abutment projections 33 has, the function of which is described below becomes.
  • the ring spring 20 is shown which when installing the adjustment device 10 the outer surface of the guide bush 12 in the Ring groove 19 can be attached.
  • the function of the Ring spring 20 is also described below.
  • the assembly of the adjustment device 10 can now detached from the outer tube 11 and inner tube 15 (complete pre-assembly) or in connection with Outer tube 11 and inner tube 15 happen.
  • the recess 21 is first the guide bush 12 of the locking body 22 is inserted, this due to the pocket-like guides 23rd is held in it. Then the actuating sleeve 13 in the x direction on the guide bush 12 so far be postponed until an abutment shoulder 34 to an opposite shoulder 35 of the guide bush 12 triggers. In this position (see Fig. 21) is that provided for the arrangement of the ring spring 20 Ring groove 19 free, so that the ring spring 20 on the guide bush 12 can be positioned.
  • the ring spring 20 in the annular groove 37 between the actuating sleeve 13 and ring cap 14 ensures that the movement unit from the actuating sleeve 13 and ring cap 14 after actuation back into the Zero position (relaxed position of the ring spring 20) moved back.
  • This zero position of the ring spring 20 corresponds the locking position shown in FIGS. 1 to 3 the adjusting device 10.
  • FIGS. 4 to 6 shown unlocked position of the adjusting device 10.
  • this position is above the recess 21 including that contained therein Blocking body 22 arranged the recess 28, so that when adjusting the inner tube 15 opposite the outer tube 11 of the locking body 22 upwards can dodge.
  • the embodiment according to 23 to 29 is another embodiment the adjusting device 10 shown.
  • the embodiment according to 23 to 29 has a guide bushing 12 ', which reduced in diameter with one Area 16 'is provided so that the area 16 'inserted into the outer tube 11 and locked can be. This is done with the help of an Outer tube 11 existing recess 39 and an am Area 16 'of the guide sleeve 12' molded locking projection 40.
  • the actuating sleeve 13 still instructs an extension 43 of its inner peripheral surface that acts as a sling.
  • the extension 43 namely an inadmissible wide shift of the Prevent actuating sleeve 13 'in the y direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Joints Allowing Movement (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • External Artificial Organs (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Tents Or Canopies (AREA)
  • Actuator (AREA)

Abstract

The pipe has an inner pipe (15) with a detent-bar extending axially; the detent bar having holes into which at least one locking piece is fitted. The locking piece is held inside a guide sleeve (12) partly gripping over the inner pipe and positioned on the outer pipe (11). The guide sleeve is enclosed by an operating sleeve (13). The end of the operating sleeve pointing away from the outer pipe and is joined to a ring-cap (14). The ring-cap is movable in relation to the guide sleeve. Between the operating sleeve and the ring cap is a groove (37) containing a circular bar-spring (20) positioned on the outer surface of the guide sleeve.

Description

Die Erfindung betrifft ein teleskopierbares Staubsauger-Saugrohr mit einem Außenrohr, einem eine sich axial erstreckende Rastleiste tragenden Innenrohr, mindestens einem mit den Rastausnehmungen der Rastleiste zusammenwirkenden Sperrkörper, der innerhalb einer am Außenrohr angeordneten, teilweise das Innenrohr übergreifenden Führungsbuchse gehalten ist, und daß die Führungsbuchse von einer Betätigungshülse umgeben ist, welche wenigstens einen Ausweichraum für den Sperrkörper aufweist, wobei zwischen Führungsbuchse und Betätigungshülse zur Sicherstellung der Sperrlage mindestens ein Federelement angeordnet ist.The invention relates to a telescopic Vacuum cleaner suction tube with an outer tube, a one axially extending locking bar carrying inner tube, at least one with the recesses of the Locking bar interacting locking body, the inside one arranged on the outer tube, partly that The inner tube is held, and that the guide bush from an actuating sleeve is surrounded, which at least one escape room for has the locking body, between the guide bush and actuating sleeve to ensure the Locked position is arranged at least one spring element.

Ein derartiges teleskopierbares StaubsaugerSaugrohr ist bereits aus der US-A-3,351,363 bekannt. In dieser Druckschrift ist ein Staubsauger-Saugrohr beschrieben, welches neben einem inneren ringförmigen Kunststoffkörper auch einen äußeren ringförmigen Kunststoffkörper aufweist, der die Betätigungsvorrichtung trägt. Zwischen dem inneren und äußeren Kunststoffkörper sind darüber hinaus zwei Druckfedern angeordnet. Diese bekannte Lösung hat jedoch den wesentlichen Nachteil, daß sie relativ schwierig zu montieren ist.Such a telescopic vacuum cleaner suction pipe is already known from US-A-3,351,363. In this publication there is a vacuum cleaner suction pipe described, which next to an inner annular Plastic body also an outer annular Has plastic body, the actuator wearing. Between the inner and outer Plastic bodies are also two compression springs arranged. However, this known solution has the essential Disadvantage that they are relatively difficult to assemble.

Die Aufgabe der Erfindung besteht deshalb darin, eine neue Teleskoprohr-Verstellanordnung für Staubsauger-Saugrohre zu schaffen, welche einen verringerten Montageaufwand aufweist. The object of the invention is therefore to a new telescopic tube adjustment arrangement for vacuum cleaner suction tubes to create which decreased Has assembly effort.

Die Lösung dieser Aufgabe ergibt sich aus den Merkmalen des Anspruchs 1, wonach an dem vom Außenrohr wegweisenden Ende der Betätigungshülse eine mit letzterer bewegungsverbundene Ringkappe angeordnet ist, die gegenüber der Führungsbuchse verschiebbar ist und daß zwischen der Betätigungshülse und der Ringkappe eine Nut zur Aufnahme eines auf einer Außenmantelfläche der Führungsbuchse angeordneten Federelements vorhanden ist, welches in wenigstens eine axiale Richtung Rückstellkräfte zur Verfügung stellt.The solution to this problem arises from the Features of claim 1, after which on the outer tube groundbreaking end of the actuating sleeve with the latter arranged ring cap associated with movement which is displaceable relative to the guide bush is and that between the actuating sleeve and the Ring cap a groove for receiving one on one Outer surface of the guide bush arranged spring element is present, which in at least one axial direction provides restoring forces.

Die erfindungsgemäße Vorrichtung hat den wesentlichen Vorteil, daß sie besonders einfach zu montieren ist. So weist die Vorrichtung eigentlich nur drei Hauptbestandteile, nämlich die Führungsbuchse, die Betätigungshülse und die Ringkappe auf, die alle auf sehr einfache Weise auf den Teleskoprohren angeordnet werden kann. So wird zunächst die Führungsbuchse auf dem Außenrohr klemmbefestigt, wobei nach dem Einlegen des Sperrkörpers die Betätigungshülse auf die Führungsbuchse aufgeschoben wird. Nach dem anschließenden Befestigen des Federelements kann letztlich schon die Ringkappe mit der Betätigungshülse bewegungsverbunden werden, so daß die Vorrichtung funktionsbereit ist.The device according to the invention has the essential Advantage that they are particularly easy to assemble is. So the device actually only has three Main components, namely the guide bush, the Actuating sleeve and the ring cap on, all on arranged very easily on the telescopic tubes can be. So first the guide bush is opened the outer tube is clamped, after inserting of the locking body, the actuating sleeve on the guide bush is postponed. After the subsequent one Fastening the spring element can ultimately already the ring cap is motionally connected to the actuating sleeve be so that the device is operational is.

Darüber hinaus hat die erfindungsgemäße Vorrichtung den Vorteil, daß sie auf ergonomisch günstige Weise bedienbar ist, da die gesamte Außenfläche der Betätigungshülse als Grifffläche zur Verfügung steht. In addition, the device according to the invention the advantage that they are ergonomically favorable Is usable because the entire outer surface of the Actuating sleeve is available as a grip surface.

Aus der DE-C-39 16 531 ist zwar bereits der Einsatz einer Ring- oder Stabfeder im Zusammenhang mit teleskopierbaren Staubsauger-Saugrohren grundsätzlich bekannt, jedoch handelt es sich hierbei um heterogenen, nicht gattungsgemäßen Stand der Technik.From DE-C-39 16 531 is already the Use of a ring or bar spring in connection basically with telescopic vacuum cleaner suction pipes known, but this is heterogeneous, not generic prior art.

Eine Ausführungsform der Erfindung kann auch dadurch gekennzeichnet sein, daß das Federelement als ringförmig gebogene Stabfeder ausgebildet ist, die am Außenumfang der Führungshülse zumindest teilweise festgelegt ist.An embodiment of the invention can also do this be characterized in that the spring element as ring-shaped curved bar spring is formed, which on The outer circumference of the guide sleeve at least partially is set.

Bei einer vorteilhaften Ausführungsform sind Betätigungshülse und Ringkappe unlösbar miteinander verrastet, wobei dies beispielsweise durch eine sägezahnförmige Verrastung geschehen kann, deren Verzahnung in Aufschubrichtung weist.In an advantageous embodiment there are actuating sleeves and ring cap cannot be detached from each other locked, this for example by a sawtooth Locking can happen, their interlocking points in the postponement direction.

Es wäre natürlich auch möglich, Betätigungshülse und Ringkappe lösbar miteinander zu verbinden. Dies kann beispielsweise durch ein Gewinde geschehen.Of course it would also be possible Actuating sleeve and ring cap releasably together connect. This can be done, for example, by means of a thread happen.

Bei einer besonders vorteilhaften Ausführungsform der Erfindung weist die in der Führungsbuchse angeordnete Ausnehmung für den Sperrkörper eine Vorrichtung zur Halterung und zur wenigstens radialbeweglichen Führung des Sperrkörpers auf. Dies ermöglicht eine vollständige Vormontage der Verstelleinrichtung weil sichergestellt ist, daß der Sperrkörper bei der Vormontage nicht aus der Verstelleinrichtung herausfallen kann. In a particularly advantageous embodiment the invention has in the guide bush arranged recess for the locking body a device for mounting and for at least radially movable Lead the locking body. this makes possible a complete pre-assembly of the adjustment device because it is ensured that the locking body not during the pre-assembly from the adjustment device can fall out.

Beispielsweise kann eine derartige Vorrichtung zur Halterung des Sperrkörpers so ausgebildet sein, daß die Führungsbuchse im Bereich der Ausnehmung mit zueinanderweisenden Führungen versehen ist, in denen der beidendig mit jeweils einem Führungszapfen versehene Sperrkörper gehalten ist.For example, such a device be designed to hold the locking body, that the guide bush in the area of the recess facing guides is provided in which the one with a guide pin on both ends Locking body is held.

Weitere Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels. Es zeigen:

  • Fig. 1 eine Seitenansicht einer Verstellvorrichtung für teleskopierbare Staubsauger-Saugrohre,
  • Fig. 2 ein Längsschnitt der Verstellvorrichtung gemäß Fig. 1,
  • Fig. 3 eine ausschnittweise Vergrößerung der Fig. 2,
  • Fig. 4 eine Darstellung gemäß Fig. 1 im entriegelten Zustand,
  • Fig. 5 ein Längsschnitt gemäß Fig. 4,
  • Fig. 6 eine ausschnittweise Vergrößerung der Fig. 5,
  • Fig. 7 eine Seitenansicht einer Führungsbuchse,
  • Fig. 8 eine Perspektivansicht der Führungsbuchse gemäß Fig. 7,
  • Fig. 9 ein Längsschnitt durch die Führungsbuchse gemäß Fig. 7,
  • Fig. 10 eine ausschnittweise Vergrößerung der Fig. 9,
  • Fig. 11 eine ausschnittweise Vergrößerung Fig. 8,
  • Fig. 12 eine Perspektivdarstellung eines Sperrkörpers,
  • Fig. 13 eine Seitenansicht einer Betätigungshülse,
  • Fig. 14 ein Längsschnitt durch die Betätigungshülse gemäß Fig. 13,
  • Fig. 15 eine Perspektivansicht der Betätigungshülse gemäß Fig. 13,
  • Fig. 16 eine Seitenansicht einer Ringkappe,
  • Fig. 17 eine Querschnittdarstellung der Ringkappe gemäß Schnittlinie XVII-XVII in Fig. 16,
  • Fig. 18 ein Querschnitt durch die Ringkappe gemäß Fig. 16,
  • Fig. 19 eine Stirnansicht der Ringkappe gemäß Ansichtspfeil XIX in Fig. 16,
  • Fig. 20 eine Perspektivdarstellung einer Ringfeder,
  • Fig. 21 die Verstellvorrichtung in teilweiser Explosionsdarstellung,
  • Fig. 22 eine Perspektivdarstellung der Verstellvorrichtung gemäß Fig. 21,
  • Fig. 23 eine Seitenansicht einer weiteren Verstellvorrichtung für teleskopierbare Staubsauger-Saugrohre,
  • Fig. 24 eine Darstellung gemäß Fig. 23 im entriegelten Zustand,
  • Fig. 25 ein Längsschnitt gemäß Fig. 24,
  • Fig. 26 eine Seitenansicht einer Führungsbuchse gemäß Fig. 23 ff.,
  • Fig. 27 ein Längsschnitt durch die Führungsbuchse gemäß Fig. 26,
  • Fig. 28 eine Seitenansicht einer Betätigungshülse gemäß Fig. 23 ff. und
  • Fig. 29 ein Längsschnitt durch die Betätigungshülse gemäß Fig. 28.
    • Further advantages of the invention result from the following description of an exemplary embodiment. Show it:
  • 1 is a side view of an adjustment device for telescopic vacuum cleaner suction pipes,
  • 2 shows a longitudinal section of the adjusting device according to FIG. 1,
  • 3 is a partial enlargement of FIG. 2,
  • 4 shows a representation according to FIG. 1 in the unlocked state,
  • 5 shows a longitudinal section according to FIG. 4,
  • 6 is a partial enlargement of FIG. 5,
  • 7 is a side view of a guide bushing,
  • 8 is a perspective view of the guide bushing shown in FIG. 7,
  • 9 shows a longitudinal section through the guide bushing according to FIG. 7,
  • 10 is a partial enlargement of FIG. 9,
  • 11 is a partial enlargement of FIG. 8,
  • 12 is a perspective view of a locking body,
  • 13 is a side view of an actuating sleeve,
  • 14 shows a longitudinal section through the actuating sleeve according to FIG. 13,
  • 15 is a perspective view of the actuating sleeve according to FIG. 13,
  • 16 is a side view of a ring cap,
  • 17 is a cross-sectional view of the ring cap according to section line XVII-XVII in Fig. 16,
  • 18 shows a cross section through the ring cap according to FIG. 16,
  • 19 is an end view of the ring cap according to the arrow XIX in FIG. 16,
  • 20 is a perspective view of a ring spring,
  • 21 the adjusting device in a partial exploded view,
  • 22 is a perspective view of the adjusting device according to FIG. 21,
  • 23 is a side view of a further adjustment device for telescopic vacuum cleaner suction pipes,
  • 24 is an illustration according to FIG. 23 in the unlocked state,
  • 25 shows a longitudinal section according to FIG. 24,
  • 26 is a side view of a guide bush according to FIG. 23 ff.,
  • 27 shows a longitudinal section through the guide bushing according to FIG. 26,
  • 28 shows a side view of an actuating sleeve according to FIGS. 23 ff. And
  • 29 shows a longitudinal section through the actuating sleeve according to FIG. 28.

    • In den Zeichnungen ist eine Teleskoprohr-Verstellanordnung insgesamt mit der Bezugsziffer 10 bezeichnet. In the drawings is a telescopic tube adjustment arrangement generally designated by the reference number 10.

    Eine derartige Verstelleinrichtung 10 weist eine auf einem Außenrohr 11 befestigte Führungsbuchse 12, eine auf der Führungsbuchse 12 in Längsachsrichtung verschiebbar angeordnete Betätigungshülse 13 und eine mit der Betätigungshülse 13 bewegungsgekoppelte Ringkappe 14 auf, wobei letztlich innerhalb der Führungsbuchse 12 ein Innenrohr 15 geführt ist.Such an adjustment device 10 has one guide bushing 12 fastened on an outer tube 11, one on the guide bushing 12 in the longitudinal axis direction slidably arranged actuating sleeve 13 and a with the actuating sleeve 13 movement-coupled ring cap 14 on, ultimately within the guide bush 12 an inner tube 15 is guided.

    Während in den Fig. 1 bis 3 die Verstelleinrichtung 10 im verriegeltem Zustand dargestellt ist, kann man in den Fig. 4 bis 6 den entriegelten Zustand erkennen.1 to 3, the adjusting device 10 is shown in the locked state, can one can recognize the unlocked state in FIGS. 4 to 6.

    In den Fig. 7 ff. ist die Führungsbuchse 12 dargestellt. Die Führungsbuchse 12 weist einen auf dem Außenrohr 11 befestigten Bereich 16 und einen im wesentlichen der Betätigungshülse 13 gegenüberliegenden Bereich 17 auf. Der Bereich 17 der Führungsbuchse 12 ist mit Führungsrippen 18 versehen, die im seitlichen und unterem Bereich abschnittsweise eine Ringnut 19 zur Befestigung einer Ringfeder 20 (s. Fig. 20) ausbilden. Im obereren Bereich der Führungsbuchse 12 erweitert sich die Ringnut 19 im Bereich der Führungsrippen 18 zu einem Bewegungsbereich A für die Ringfeder 20, dessen Funktion noch im einzelnen nachfolgend erläutert wird.7 ff. The guide bushing 12 is shown. The guide bushing 12 has one on the Outer tube 11 attached area 16 and substantially the actuating sleeve 13 opposite Area 17 on. The area 17 of the guide bush 12 is provided with guide ribs 18 in the side and a lower portion of an annular groove 19 to form an annular spring 20 (see FIG. 20). Expanded in the upper area of the guide bush 12 the annular groove 19 in the area of the guide ribs 18 to a range of motion A for the ring spring 20, the function of which will be described in detail below is explained.

    In der Perspektivdarstellung der Fig. 8 ist an der Innenumfangsfläche eine Verdrehsicherung V in Form einer Längsrippe zu erkennen, die in nicht dargestellter Weise in eine Längsnut des Innenrohrs 15 eingreift. 8 is on an anti-rotation device V in Recognize the shape of a longitudinal rib, which in not shown Way into a longitudinal groove of the inner tube 15 intervenes.

    Darüber hinaus ist die Führungsbuchse 12 mit einer quer zu ihrer Längserstreckung angeordneten Ausnehmung 21 zur Aufnahme eines in Fig. 12 dargestellten Sperrkörpers 22 versehen. Wie insbesondere in den Fig. 9 bis 11 dargestellt, weist die Ausnehmung 21 beidendig jeweils eine taschenartige Führung 23 auf, die es bei der Vormontage möglich macht, den mit stirnseitigen Zapfen 24 versehenen Sperrkörper 22 von oben in die Ausnehmung 21 einzulegen, ohne daß dieser hindurchfällt.In addition, the guide bush 12 with one arranged transversely to its longitudinal extent Recess 21 for receiving one shown in Fig. 12 Blocking body 22 provided. How in particular 9 to 11, the recess has 21 a pocket-like guide at both ends 23, which makes it possible during pre-assembly locking body 22 provided with end pins 24 from above into the recess 21 without this falls through.

    In den Fig. 13 bis 15 ist die Betätigungshülse 13 dargestellt. Man erkennt einen Überlappungsbereich 25, der sich im montierten Zustand mehr oder weniger auf den Bereich 16 der Führungsbuchse 12 schiebt, einen Bereich 26, der zur Befestigung der Ringkappe 14 dient und einen dazwischenliegenden Bereich 27, der innenrohrseitig zwei Aussparungen 28 und 29 für den Sperrkörper 22 aufweist. Eine Außenumfangsfläche F der Betätigungshülse 13 dient letztlich als Betätigungsfläche für die Griffhand, wobei die Betätigungsfläche - wie nicht dargestellt - auch eine ergonomisch günstige, an die Griffhand angepaßte Form aufweisen kann.13 to 15 is the actuating sleeve 13 shown. You can see an overlap area 25, which in the assembled state more or less pushes on the area 16 of the guide bush 12, an area 26 for attaching the ring cap 14 serves and an intermediate area 27, the inner tube side two recesses 28 and 29 for has the locking body 22. An outer peripheral surface F of the actuating sleeve 13 ultimately serves as an actuating surface for the handle hand, the actuating surface - as not shown - also an ergonomic one have favorable shape adapted to the hand of the handle can.

    In den Fig. 16 bis 19 ist die Ringkappe 14 dargestellt. Die Ringkappe 14 weist einen Befestigungsbereich 30 auf, der mit Rastvorsprüngen 31 versehen ist, welche mit einer sägezahnartig ausgebildeten Innenverrastung 32 des Bereichs 26 der Betätigungshülse 13 korrespondieren. Darüber hinaus ist insbesondere in Fig. 17 zu erkennen, daß die Ringkappe 14 innen-rohrseitig zwei beabstandete Widerlagervorsprünge 33 aufweist, dessen Funktion noch nachfolgend beschrieben wird.16 to 19, the ring cap 14 is shown. The ring cap 14 has a fastening area 30 on that provided with locking projections 31 is, which with a sawtooth-shaped internal locking 32 of the area 26 of the actuating sleeve 13 correspond. Beyond that is special 17 that the ring cap 14 on the inside of the tube two spaced abutment projections 33 has, the function of which is described below becomes.

    In der Fig. 20 ist die Ringfeder 20 dargestellt, welche bei der Montage der Verstellvorrichtung 10 auf der Außenoberfläche der Führungsbuchse 12 in der Ringnut 19 befestigt werden kann. Die Funktion der Ringfeder 20 wird ebenfalls nachfolgend noch beschrieben.20, the ring spring 20 is shown which when installing the adjustment device 10 the outer surface of the guide bush 12 in the Ring groove 19 can be attached. The function of the Ring spring 20 is also described below.

    Der Zusammenbau der Verstellvorrichtung 10 kann nun zunächst losgelöst von Außenrohr 11 und Innenrohr 15 (komplette Vormontage) oder in Verbindung mit Außenrohr 11 und Innenrohr 15 geschehen.The assembly of the adjustment device 10 can now detached from the outer tube 11 and inner tube 15 (complete pre-assembly) or in connection with Outer tube 11 and inner tube 15 happen.

    Grundsätzlich wird zunächst in die Ausnehmung 21 der Führungsbuchse 12 der Sperrkörper 22 eingelegt, wobei dieser aufgrund der taschenartigen Führungen 23 darin gehalten wird. Dann kann die Betätigungshülse 13 in x-Richtung auf die Führungsbuchse 12 soweit aufgeschoben werden, bis daß eine Anlageschulter 34 an einen gegenüberliegende Schulter 35 der Führungsbuchse 12 anstößt. In dieser Stellung (s. Fig. 21) liegt die zur Anordnung der Ringfeder 20 vorgesehene Ringnut 19 frei, so daß die Ringfeder 20 auf der Führungsbuchse 12 positioniert werden kann. Nach dem Einlegen der Ringfeder 20 und dem Zurückschieben (in y-Richtung) der Betätigungshülse 13 bis zur Anlage einer Schulterfläche 36 an der Ringfeder 20 kann die Ringkappe 14 in x-Richtung auf die Führungsbuchse 12 aufgeschoben werden, bis daß die Befestigungsbereiche 26 und 30, d.h. Innenverzahnung 32 und Rastvorsprünge 31, miteinander unverrückbar verrastet sind. Durch diese Art der Bewegungskoppelung von Betätigungshülse 13 und Ringkappe 14 wird die Ringfeder 20 zwischen der zuvor genannten Schulter 36 und den Widerlagervorsprüngen 33 der Ringkappe 14 fest in einer Ringnut 37 eingespannt. Diese Situation kann man insbesondere in den Fig. 3 und 6 erkennen. Durch die Einspannung der Ringfeder 20 in der Ringnut 37 zwischen Betätigungshülse 13 und Ringkappe 14 wird sichergestellt, daß sich die Bewegungseinheit aus Betätigungshülse 13 und Ringkappe 14 nach einer Betätigung wieder in die Nullage (entspannte Stellung der Ringfeder 20) zurückbewegt. Diese Nullage der Ringfeder 20 entspricht der in den Fig. 1 bis 3 dargestellten Sperrstellung der Verstelleinrichtung 10. Hierbei wird die Ausnehmung 21 durch eine Sperrfläche 38 der Betätigungshülse 13 abgedeckt, wodurch der Sperrkörper 22 in einer Rastnut R des Innenrohres 15 gehalten wird.Basically, the recess 21 is first the guide bush 12 of the locking body 22 is inserted, this due to the pocket-like guides 23rd is held in it. Then the actuating sleeve 13 in the x direction on the guide bush 12 so far be postponed until an abutment shoulder 34 to an opposite shoulder 35 of the guide bush 12 triggers. In this position (see Fig. 21) is that provided for the arrangement of the ring spring 20 Ring groove 19 free, so that the ring spring 20 on the guide bush 12 can be positioned. After this Insert the ring spring 20 and push it back (in y direction) of the actuating sleeve 13 up to the system a shoulder surface 36 on the ring spring 20 can Ring cap 14 in the x direction on the guide bushing 12 be pushed on until the attachment areas 26 and 30, i.e. Internal toothing 32 and locking projections 31, are immovably locked together. By this type of movement coupling of the actuating sleeve 13 and ring cap 14, the ring spring 20 between the aforementioned shoulder 36 and the abutment projections 33 of the ring cap 14 firmly in an annular groove 37 clamped. This situation can be seen in particular 3 and 6 recognize. By the fixation the ring spring 20 in the annular groove 37 between the actuating sleeve 13 and ring cap 14 ensures that the movement unit from the actuating sleeve 13 and ring cap 14 after actuation back into the Zero position (relaxed position of the ring spring 20) moved back. This zero position of the ring spring 20 corresponds the locking position shown in FIGS. 1 to 3 the adjusting device 10. Here, the recess 21 through a locking surface 38 of the actuating sleeve 13 covered, whereby the locking body 22 in a locking groove R of the inner tube 15 is held.

    Wird nun die Betätigungshülse 13 samt Ringkappe 14 in y-Richtung bewegt, ergibt sich die in den Fig. 4 bis 6 dargestellte entriegelte Stellung der Verstelleinrichtung 10. In dieser Stellung ist oberhalb der Ausnehmung 21 einschließlich des darin enthaltenen Sperrkörpers 22 die Aussparung 28 angeordnet, so daß bei der Verstellung des Innenrohres 15 gegenüber dem Außenrohr 11 der Sperrkörper 22 nach oben hin ausweichen kann.Now the actuating sleeve 13 together with the ring cap 14 moved in the y direction, the result in FIGS. 4 to 6 shown unlocked position of the adjusting device 10. In this position is above the recess 21 including that contained therein Blocking body 22 arranged the recess 28, so that when adjusting the inner tube 15 opposite the outer tube 11 of the locking body 22 upwards can dodge.

    In den Fig. 23 bis 29 ist eine weitere Ausführungsform der Verstelleinrichtung 10 dargestellt. Insbesondere beim Vergleich der Fig. 23, 24 und 25 mit den Fig. 1, 4 und 5 erkennt man den Unterschied der beiden Ausführungsformen. Die Ausführungsform gemäß den Fig. 23 bis 29 weist nämlich eine Führungsbuchse 12' auf, welche mit einen im Durchmesser verringerten Bereich 16' versehen ist, so daß der Bereich 16' in das Außenrohr 11 eingeschoben und verrastet werden kann. Dies geschieht mit Hilfe einer am Außenrohr 11 vorhandenen Aussparung 39 sowie einem am Bereich 16' der Führungshülse 12' angeformten Rastvorsprung 40.23 to 29 is another embodiment the adjusting device 10 shown. In particular when comparing FIGS. 23, 24 and 25 with Figs. 1, 4 and 5 you can see the difference of the two embodiments. The embodiment according to 23 to 29 has a guide bushing 12 ', which reduced in diameter with one Area 16 'is provided so that the area 16 'inserted into the outer tube 11 and locked can be. This is done with the help of an Outer tube 11 existing recess 39 and an am Area 16 'of the guide sleeve 12' molded locking projection 40.

    Darüber hinaus wird eine Betätigungshülse 13' zum Außenrohr 11 weisend mit einem konisch zusammenlaufenden Ansatz 41 versehen, welcher im verriegelten wie auch entriegelten Zustand einen Endbereich 42 des Außenrohres 11 übergreift.In addition, an actuating sleeve 13 ' facing the outer tube 11 with a conically converging Approach 41 provided which in the locked as well as unlocked state an end portion 42 of the Extends outer tube 11.

    Letztlich weist die Betätigungshülse 13' noch an ihrer Innenumfangsfläche zusätzlich einen Fortsatz 43 auf, der als Anschlagmittel wirkt. Der Fortsatz 43 soll nämlich eine unzulässig weite Verschiebung der Betätigungshülse 13' in y-Richtung verhindern.Ultimately, the actuating sleeve 13 'still instructs an extension 43 of its inner peripheral surface that acts as a sling. The extension 43 namely an inadmissible wide shift of the Prevent actuating sleeve 13 'in the y direction.

    Bei dieser Ausführungsform ergibt sich noch eine weitere Vereinfachung der Montage. Aufgrund der veränderten Konstruktion von Führungsbuchse 12' und Betätigungshülse 13' kann nämlich nicht nur der Sperrkörper 22 vor der Montage der Verstelleinrichtung 10, sondern auch die Ringfeder 20 in die Führungsbuchse 12' zuerst eingesetzt werden. Danach kann die Betätigungshülse 13' aufgrund des im Vergleich zur ersten Ausführungsform kleineren Durchmessers des Bereichs 16' der Führungsbuchse 12' in y-Richtung unter sehr geringer elastischer Deformierung des Bereiches 16' aufgeschoben werden, bis daß die Schulter 36 der Betätigungshülse 13' an der Ringfeder 20 anschlägt. Abschließend ist dann lediglich - wie bei der ersten Ausführungsform - die Ringkappe 14 an der Betätigungshülse 13' zu befestigen.In this embodiment there is still one further simplification of assembly. Because of the changed Construction of guide bushing 12 'and actuating sleeve 13 'can not only the locking body 22 before assembly of the adjustment device 10, but also the ring spring 20 in the guide bush 12 'are used first. Then the actuating sleeve 13 'due to the compared to the first Embodiment smaller diameter of the area 16 'of the guide bush 12' in the y direction under very much little elastic deformation of the area 16 ' be pushed on until the shoulder 36 of the actuating sleeve 13 'strikes the ring spring 20. Finally is then just like the first Embodiment - the ring cap 14 on the actuating sleeve 13 'to attach.

    Claims (10)

    1. Telescopic vacuum cleaner suction tube with an outer tube (11), an inner tube (15), which bears an axially extending detent strip, at least one retaining body (22), which co-operates with the detent recesses of the detent strip and is held inside a guide bush (12) disposed on the outer tube (11) and partly lapping over the inner tube (15), and that the guide bush (12) is surrounded by an actuating sleeve (13) comprising at least one withdrawal space for the retaining body (22), wherein at least one spring element (20) is disposed between the guide bush (12) and the actuating sleeve (13) to guarantee the retained position, which spring makes restoring forces available in at least one axial direction, characterised in that an annular cap (14) is disposed at the end of the actuating sleeve (13) which points away from the outer tube (11), which cap is connected to the sleeve to move with the latter and is displaceable with respect to the guide bush (12), and that a groove (37) is provided between the actuating sleeve (13) and the annular cap (14) to accommodate a spring element (20) which is disposed on an outer circumferential surface of the guide bush (12).
    2. Vacuum cleaner suction tube according to Claim 1, characterised in that the spring element (20) is formed as a bar spring which is bent in an annular manner.
    3. Vacuum cleaner suction tube according to Claim 1 or 2, characterised in that the actuating sleeve (13) and the annular cap (14) are permanently interlocked.
    4. Vacuum cleaner suction tube according to Claim 3, characterised in that the interlocking mechanism between the actuating sleeve (13) and the annular cap (14) is of sawtooth formation and that the tooth system points in the push-on direction of the annular cap (14).
    5. Vacuum cleaner suction tube according to Claim 1 or 2, characterised in that the actuating sleeve (13) and the annular cap (14) are connected together in a releasable manner.
    6. Vacuum cleaner suction tube according to any one of the preceding Claims, characterised in that the guide bush (12) comprises a recess (21) for the retaining body (22), which recess is provided with a device for holding and for guiding the retaining body (22) at least so that it can move radially.
    7. Vacuum cleaner suction tube according to Claim 6, characterised in that the guide bush (12) is provided with guides (23) which point towards one another in the area of the recess (21) and in which the retaining body (22), which is provided with a respective guide pin (24) at both ends, is held.
    8. Vacuum cleaner suction tube according to any one of the preceding Claims, characterised in that the actuating sleeve (13) comprises stop means (43) which prevent the actuating sleeve (13) from being displaced to an inadmissible degree in the y direction.
    9. Vacuum cleaner suction tube according to any one of the preceding Claims, characterised in that the guide bush (12) is disposed with its area (16) on the outer tube (11).
    10. Vacuum cleaner suction tube according to any one of the preceding Claims, characterised in that the guide bush (12') is disposed with its area (16') in the outer tube (11).
    EP97123023A 1997-02-14 1997-12-31 Telescopic vacuum cleaner suction hose Expired - Lifetime EP0858762B1 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    DE19705545 1997-02-14
    DE19705545 1997-02-14
    DE19722195 1997-05-27
    DE19722195 1997-05-27

    Publications (2)

    Publication Number Publication Date
    EP0858762A1 EP0858762A1 (en) 1998-08-19
    EP0858762B1 true EP0858762B1 (en) 2001-02-28

    Family

    ID=26033907

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97123023A Expired - Lifetime EP0858762B1 (en) 1997-02-14 1997-12-31 Telescopic vacuum cleaner suction hose

    Country Status (19)

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    US (1) US5941575A (en)
    EP (1) EP0858762B1 (en)
    JP (1) JP3254577B2 (en)
    KR (1) KR100249741B1 (en)
    CN (1) CN1105544C (en)
    AT (1) ATE199305T1 (en)
    CA (1) CA2226373C (en)
    CZ (1) CZ291003B6 (en)
    DE (2) DE19738194C1 (en)
    DK (1) DK0858762T3 (en)
    EE (1) EE03626B1 (en)
    ES (1) ES2155650T3 (en)
    HK (1) HK1014853A1 (en)
    HU (1) HU220546B1 (en)
    NO (1) NO313905B1 (en)
    PL (1) PL185660B1 (en)
    RU (1) RU2140762C1 (en)
    SK (1) SK284221B6 (en)
    UA (1) UA39905C2 (en)

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    Also Published As

    Publication number Publication date
    RU2140762C1 (en) 1999-11-10
    NO313905B1 (en) 2002-12-23
    HUP9800312A2 (en) 1998-08-28
    CN1193502A (en) 1998-09-23
    CA2226373A1 (en) 1998-08-14
    SK1998A3 (en) 1999-01-11
    JP3254577B2 (en) 2002-02-12
    DK0858762T3 (en) 2001-03-26
    KR19980070985A (en) 1998-10-26
    PL185660B1 (en) 2003-06-30
    SK284221B6 (en) 2004-11-03
    UA39905C2 (en) 2001-07-16
    EE9800005A (en) 1998-08-17
    KR100249741B1 (en) 2000-05-01
    CZ291003B6 (en) 2002-11-13
    HK1014853A1 (en) 1999-10-08
    PL324372A1 (en) 1998-08-17
    DE59703053D1 (en) 2001-04-05
    NO980037L (en) 1998-08-17
    CN1105544C (en) 2003-04-16
    ES2155650T3 (en) 2001-05-16
    HU9800312D0 (en) 1998-04-28
    HUP9800312A3 (en) 2000-03-28
    CZ3098A3 (en) 1999-11-17
    EP0858762A1 (en) 1998-08-19
    CA2226373C (en) 2000-07-18
    JPH10225405A (en) 1998-08-25
    HU220546B1 (en) 2002-03-28
    US5941575A (en) 1999-08-24
    EE03626B1 (en) 2002-02-15
    ATE199305T1 (en) 2001-03-15
    DE19738194C1 (en) 1998-06-10
    NO980037D0 (en) 1998-01-05

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