EP2792288B1 - Latch device for a vacuum cleaner suction hose - Google Patents

Latch device for a vacuum cleaner suction hose Download PDF

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Publication number
EP2792288B1
EP2792288B1 EP14164703.2A EP14164703A EP2792288B1 EP 2792288 B1 EP2792288 B1 EP 2792288B1 EP 14164703 A EP14164703 A EP 14164703A EP 2792288 B1 EP2792288 B1 EP 2792288B1
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EP
European Patent Office
Prior art keywords
sleeve
lever button
vacuum cleaner
catch
cleaner suction
Prior art date
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Application number
EP14164703.2A
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German (de)
French (fr)
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EP2792288A1 (en
Inventor
Martin Cordes
Stephan Cordes
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Fischer Rohrtechnik GmbH
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Fischer Rohrtechnik GmbH
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Publication of EP2792288A1 publication Critical patent/EP2792288A1/en
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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
    • A47L9/242—Hose or pipe couplings

Definitions

  • the invention relates to a latching device for connecting a handle to a vacuum cleaner suction tube, wherein the latching device is mountable in an end region of a vacuum cleaner suction tube, with at least one sleeve, at least one lever button and at least one return spring, wherein the lever button has a latching projection and a pivot axis , Furthermore, the invention relates to a vacuum cleaner suction pipe with a locking device.
  • Such locking devices are known in the art in a variety of configurations and are usually mounted in an end portion of a vacuum cleaner suction tube. This allows the vacuum cleaner suction pipe via the locking device with a handle of a suction hose and thus be connected to the vacuum itself.
  • a latching recess is provided on the handle, for example, which engages positively locking with the latching projection of the lever button.
  • the locking projection differs upon insertion of the handle by the pivotally arranged lever button pivots back about the pivot axis, thus releasing an insertion of the handle.
  • the return spring then causes a return of the lever button and thus the latching projection in a locking position.
  • the locking devices known from the prior art have the disadvantage that the assembly of the locking devices takes place directly on the vacuum cleaner suction pipe and is therefore very expensive.
  • a locking device according to the preamble of claim 1 is eg in US-A-6832784 disclosed.
  • the present invention is therefore an object of the invention to provide a locking device, which reduces the cost of installation on a vacuum cleaner suction tube.
  • a clamping element is provided that the Clamping element is positively connected to the sleeve, and that the lever button is pivotally held with its pivot axis between clamping element and the sleeve.
  • the latching device can be mounted in an end region of a vacuum cleaner suction pipe, wherein the sleeve of the latching device preferably surrounds the vacuum cleaner suction pipe in its entirety.
  • the vacuum cleaner suction tube preferably comprises at least one outer tube and an inner tube, wherein the outer tube and the inner tube are telescopic relative to each other, so that the length of the vacuum cleaner suction tube is variably adjustable.
  • the locking device is used, for example, to connect a handle with the vacuum cleaner suction tube, but it is also envisaged that other components are connected to the vacuum cleaner suction tube, z. B. a suction hose without handle.
  • the locking device comprises a sleeve, which preferably serves as a carrier for the other components, namely at least one lever button and at least one return spring.
  • the lever button is pivotally supported about a pivot axis in the sleeve so that the latch projection of the lever button is movable from a lock position to a release position.
  • the clamping element is positively connected to the sleeve and arranged on the sleeve, that the lever button is pivotally held with its pivot axis between the clamping element and the lever button.
  • the lever button is easily inserted into the sleeve, for which purpose the lever button is at least partially guided from the outside through an opening in the sleeve.
  • the pivot axis is thereby positioned in a support area.
  • the lever button is held positively in the assembled state between the clamping element and sleeve.
  • the return spring is preferably positioned between sleeve and reset button.
  • the clamping element is positively secured to the sleeve, preferably by the clamping element locked with at least one latching hook on a latching portion of the sleeve.
  • the lever button is arranged fixed in position relative to the sleeve, however, such that the sleeve is pivotable in the context of a pivoting movement.
  • the pivoting of the lever button takes place Preferably, between a locking position in which the latching projection of the lever button is in a latching state or is latched with existing handle with this, and a release position in which the latching projection of the lever button is not locked or in the presence of a handle detachment of the handle would be possible.
  • the present invention has the advantage that the lever button and the return spring are held without loss on the sleeve, even in the state of the latching device that is not mounted on the vacuum cleaner suction tube.
  • the latching device can be preassembled as a whole with all the components and then be mounted on the vacuum cleaner suction tube, as a result of which the entire assembly process is simplified.
  • an advantageous reliability of the attachment of the lever button on the sleeve can be achieved according to a first embodiment, characterized in that the clamping element has two mutually parallel locking edges, and that the sleeve has two locking surfaces corresponding to the latching areas, in particular, that the locking edges parallel to the longitudinal extent the sleeve run.
  • the clamping element is thus positively connected with the two mutually parallel locking edges with the corresponding latching portions of the sleeve, for example, locked.
  • the latching flanks in particular have a locking projection extending over their entire longitudinal extension, which engages behind the latching area at least partially, so that a positive connection is realized between the clamping element and the sleeve.
  • the latching flanks each have at least one recess into which in each case engages a latching projection on the sleeve.
  • the locking lugs are preferably oriented in opposite directions, the clamping element receives an advantageous stability in the attachment of the lever button on the sleeve.
  • the locking flanks are parallel to the longitudinal extent the sleeve oriented so that the locking edges are arranged orthogonal to the orientation of the pivot axis of the lever button.
  • the stability of the latching device can be increased according to a further embodiment in that the clamping element is arranged on the inside of the sleeve, so that the clamping element in the assembled state faces the vacuum cleaner suction tube.
  • the lever button is preferably at least partially inserted from the outside through an opening in the sleeve, wherein subsequently the clamping element is brought in from the inside and is locked with the sleeve. The lever button is thus brought in from the outside, the clamping element from the inside to the sleeve.
  • the arrangement of the clamping element on the inside of the sleeve prevents parts of the locking device can be solved in the assembled state of the locking device on the vacuum cleaner suction pipe. A disassembly of the individual components of the locking device of the sleeve is therefore possible only after disassembly of the locking device from the vacuum cleaner suction pipe.
  • At least a first part of a guide bush for the pivot axis and on the clamping element at least a second part of a guide bush is formed on the sleeve, so that the pivot axis is performed in the assembled state between the clamping element and sleeve in the guide bush.
  • At least a first part of a guide bush for the pivot axis is formed on the sleeve, wherein it is also provided that two oppositely arranged first parts of a guide bush are formed so that the pivot axis of the lever key is guided on two supports.
  • the first two parts of a guide bush are advantageously on a common - imaginary - axis.
  • the first part of a guide bush for the pivot axis is formed for example as a half-shell, in which the pivot axis of the lever button is inserted.
  • the second part of the half-shell namely the second part of the guide bush, is respectively arranged on the clamping element and also designed as a half-shell, so that in the assembled state of the clamping element, a guide bush enclosing the pivot axis, preferably on both sides the pivot axis, is formed.
  • the guide bushing does not have to completely enclose the pivot axis in each case, but it is sufficient such a guide that the pivot axis can not escape from the guide bushing.
  • the return spring is formed for example as a spiral spring, plate spring or leaf spring and arranged between the sleeve and lever button, that the return spring always strives to restore the lever button in a locking position. It is provided on the one hand, that the return spring is formed as a spiral spring and arranged so that it causes a torque on the pivot axis of the lever button, but on the other hand can also be arranged such that the coil spring acts as a compression spring and is loaded in the longitudinal direction.
  • the clamping element has a recess for the latching projection of the lever button, in particular, that the clamping element surrounds the latching projection.
  • the clamping element is positively connected to the sleeve, wherein in the clamping element a unilaterally open or a closed recess is provided which surrounds the latching projection at least partially.
  • the latching projection is completely enclosed with respect to its circumference by the recess.
  • the locking projection is guided in the clamping element, whereby inter alia, the stability of the lever button is increased during a pivoting operation, namely the fact that the locking projection the lever button can not escape laterally, since such movement is prevented by the recess.
  • the clamping element has a stabilizing web arranged centrally on the clamping element, in particular that the stabilizing web is arranged parallel to the longitudinal extension of the sleeve.
  • the stabilizing web is preferably arranged centrally between and parallel to the two locking flanks.
  • the stabilizing web engages between two guide flanks provided on the lever key, so that the pivot axis of the lever key is additionally protected against tilting.
  • the guide flanks are arranged orthogonal to the pivot axis, so that the pivot axis passes through the guide flanks as plane normal.
  • a part of the pivot axis is provided laterally on both guide flanks, so that the pivot axis does not extend completely in one piece through the lever button, but consists of at least two subregions.
  • the mounting of the latching devices can be simplified according to a further embodiment in that the sleeve comprises at least a first half-shell and at least one second half-shell, in particular, that the lever button, the return spring and the clamping element are arranged on the first half-shell.
  • the sleeve comprises the vacuum cleaner suction tube in the assembled state fully, wherein the sleeve comprises a first half-shell and a second half-shell, which are each slipped over an end portion of the vacuum cleaner suction tube and locked together.
  • the latching device is preassembled on the first half-shell functioning by the clamping element is positively locked to the sleeve, namely with the first half-shell, so that the lever button is pivotally supported, whereby the latching projection between a locking position and a release position is pivotable.
  • the latching device is preferably mounted on a two-part vacuum cleaner suction tube, namely on a vacuum cleaner suction tube comprising an inner tube and an outer tube, wherein the inner tube and the outer tube relative are telescopic to each other.
  • a vacuum cleaner suction tube comprising an inner tube and an outer tube, wherein the inner tube and the outer tube relative are telescopic to each other.
  • Fig. 1 shows an embodiment of a locking device 1 for connecting a - not shown - handle with a vacuum cleaner suction pipe 2.
  • the locking device 1 is mounted in an end region of the vacuum cleaner suction tube 2 and comprises a sleeve 3 with a lever button 4.
  • the sleeve 3 comprises a first Half shell 3a and a second half-shell 3b, which completely surround the vacuum cleaner suction tube 2 in the end region. The first half-shell 3a and the second half-shell 3b are locked together.
  • the lever button 4 is in a locking position.
  • Fig. 2 shows an exploded view of an embodiment of a locking device 1 in a perspective view.
  • the latching device 1 comprises a sleeve 3, which in turn comprises a first half-shell 3a and a second half-shell 3b.
  • the first half-shell 3a and the second half-shell 3b of the Sleeve 3 are latched together by means of latching hook 5 and corresponding recesses 6.
  • the lever button 4 is shown together with a return spring 7 below the first half-shell 3a.
  • the lever button 4 has a latching projection 8 and a pivot axis 9.
  • the lever button 4 is at least partially inserted through an opening 10 in the sleeve 3 and fixed with a clamping element 11 with respect to their position, namely by the clamping element 11 is positively connected to the sleeve 3 by the clamping member 11 with the sleeve 3, in particular the first half-shell 3a, locked. Subsequently, the lever button 4 is held about its pivot axis 9 pivotally between clamping element 11 and the sleeve 3.
  • the clamping element 11 has two mutually parallel locking flanks 12 which cooperate with corresponding latching regions 13 on the sleeve 3 by the locking edges 12 engage behind the latching regions 13 in a form-fitting manner. Both the locking flanks 12 and the latching regions 13 are arranged such that they extend parallel to the longitudinal extent of the sleeve 3, in particular orthogonal to the pivot axis 9.
  • the clamping element 11 is arranged on the inside of the sleeve 3, in particular on the inside of the first half-shell 3a of the sleeve 3, so that the clamping element 11 faces the vacuum cleaner suction tube in the assembled state.
  • two first parts 14 of a guide bush are formed on the sleeve 3, in which the pivot axis 9 of the lever button 4 is introduced.
  • the first parts 14 of a guide bushing partially enclose the pivot axis 9 in the assembled state.
  • two second parts 15 of a guide bush are formed on the clamping element 11, so that the pivot axis 9 of the lever button 4 in the assembled state between the first parts 14 of a guide bush and the second parts 15 a guide bushing stationary, but is held pivotally.
  • the lever button 4 is pivotable in the assembled state between a locking position and a release position.
  • the locking projection 8 of the lever button 4 by the return spring 7 always in the direction of the locking position urged by the return spring 7 between the lever button 4, namely the locking projection 8, and the inside of the sleeve 3, namely the first half-shell 3a, supported and exerts a force in the direction of the locking position on the lever button 4 as a compression spring.
  • the clamping element 11 has a recess 16 for the latching projection 8, which surrounds the latching projection 8 in the assembled state of three sides.
  • Fig. 3 shows an embodiment of a clamping element 11 in a perspective view.
  • the two locking flanks 12 are arranged parallel to one another and extend in the edge regions of the clamping element 11.
  • the latching lugs of the latching flanks are provided opposite one another and facing one another.
  • the two second parts 15 of a guide bush for guiding the pivot axis of a lever button are arranged.
  • a stabilizing web 17 is centrally provided on the clamping element 11, which is arranged in the assembled state between two guide flanks of the lever button and thereby ensures reliable guidance of the lever button.
  • Fig. 4 shows an embodiment of a locking device 1 in the assembled state of the sleeve 3, namely the first half-shell 3a and the second half-shell 3b, without vacuum cleaner suction tube.
  • the lever button 4 is mounted in the first half-shell 3a and can be actuated by pressure on its upper side, whereby it pivots from the illustrated locking position into a release position, whereby the latching projection of the lever button 4 releases a positive connection.
  • Fig. 5 shows an embodiment of a locking device 1 in a sectional side view, wherein the section is guided in a plane in the longitudinal direction of the latching device 1.
  • the locking device 1 is assembled without a vacuum cleaner suction tube, namely, the first half-shell 3a and the second half-shell 3b of the sleeve 3 are connected.
  • the latching projections 5 of the second half-shell 3b are latched to the corresponding latching recesses 6 of the first half-shell 3a.
  • the locking projection 8 is in a locking position and is supported by the return spring 7, which is supported on the one hand on the sleeve 3 and on the other hand on the locking projection 8, in this locking position held.
  • the locking projection 8 By actuating the lever button 4, which is thereby pivoted about the pivot axis 9, the locking projection 8 is moved to a release position, namely by the locking projection 8 in the direction of the sleeve 3, in particular in the direction of the first half-shell 3a, pivoted, whereby the return spring. 7 is compressed.
  • the return spring 7 causes a provision of the locking projection 8 and thus the lever button 4 in the illustrated locking position.
  • a - not shown - handle is according to Fig. 5 from the left into the locking device 1 can be inserted. The handle would first push back the latching projection 8 from the locking position to the release position, so that the latching projection 8 can then latch positively with a latching recess on the handle by the latching projection 8 returns to its locking position.
  • the stabilizing web 17 stabilizes the lever button 4 when pivoting about the pivot axis 9, being held in position by the clamping element 11 mounted from the inside of the sleeve 3.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Clamps And Clips (AREA)

Description

Die Erfindung betrifft eine Rastvorrichtung zum Anschluss eines Handgriffs an ein Staubsauger-Saugrohr, wobei die Rastvorrichtung in einem Endbereich eines Staubsauger-Saugrohrs montierbar ist, mit mindestens einer Hülse, mindestens einer Hebeltaste und mindestens einer Rückstellfeder, wobei die Hebeltaste einen Rastvorsprung und eine Schwenkachse aufweist. Ferner betrifft die Erfindung ein Staubsauger-Saugrohr mit einer Rastvorrichtung.The invention relates to a latching device for connecting a handle to a vacuum cleaner suction tube, wherein the latching device is mountable in an end region of a vacuum cleaner suction tube, with at least one sleeve, at least one lever button and at least one return spring, wherein the lever button has a latching projection and a pivot axis , Furthermore, the invention relates to a vacuum cleaner suction pipe with a locking device.

Derartige Rastvorrichtungen sind im Stand der Technik in einer Vielzahl von Ausgestaltungen bekannt und sind üblicherweise in einem Endbereich an einem Staubsauger-Saugrohr befestigt. Dadurch kann das Staubsauger-Saugrohr über die Rastvorrichtung mit einem Handgriff eines Saugschlauchs und damit mit dem Staubsauger selbst verbunden werden. Um den Handgriff formschlüssig mit dem Staubsauger-Saugrohr zu verbinden, ist an dem Handgriff beispielsweise eine Rastausnehmung vorgesehen, die mit dem Rastvorsprung der Hebeltaste formschlüssig verrastet. Zum Verbinden wird der Handgriff beispielsweise endseitig in die Rastvorrichtung bzw. das Staubsauger-Saugrohr eingesteckt, wodurch die Ausnehmung mit dem Rastvorsprung zusammenwirken kann. Der Rastvorsprung weicht beim Einschieben des Handgriffs aus, indem die schwenkbar angeordnete Hebeltaste um die Schwenkachse zurückschwenkt und so ein Einschieben des Handgriffs freigibt. Die Rückstellfeder bewirkt sodann eine Rückstellung der Hebeltaste und damit des Rastvorsprungs in eine Verriegelungsposition.Such locking devices are known in the art in a variety of configurations and are usually mounted in an end portion of a vacuum cleaner suction tube. This allows the vacuum cleaner suction pipe via the locking device with a handle of a suction hose and thus be connected to the vacuum itself. In order to positively connect the handle with the vacuum cleaner suction tube, a latching recess is provided on the handle, for example, which engages positively locking with the latching projection of the lever button. For connecting the handle is inserted, for example, the end in the locking device or the vacuum cleaner suction tube, whereby the recess can cooperate with the locking projection. The locking projection differs upon insertion of the handle by the pivotally arranged lever button pivots back about the pivot axis, thus releasing an insertion of the handle. The return spring then causes a return of the lever button and thus the latching projection in a locking position.

Die aus dem Stand der Technik bekannten Rastvorrichtungen weisen dabei den Nachteil auf, dass die Montage der Rastvorrichtungen unmittelbar am Staubsauger-Saugrohr erfolgt und dadurch sehr aufwendig ist.The locking devices known from the prior art have the disadvantage that the assembly of the locking devices takes place directly on the vacuum cleaner suction pipe and is therefore very expensive.

Eine Rastvorrichtung gemäss dem Oberbegriff des Anspruchs 1 ist z.B. in US-A-6832784 offenbart.A locking device according to the preamble of claim 1 is eg in US-A-6832784 disclosed.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Rastvorrichtung anzugeben, die den Aufwand für die Montage an einem Staubsauger-Saugrohr reduziert.The present invention is therefore an object of the invention to provide a locking device, which reduces the cost of installation on a vacuum cleaner suction tube.

Die vorgenannte Aufgabe ist bei einer Rastvorrichtung zunächst und im Wesentlichen dadurch gelöst, dass ein Klemmelement vorgesehen ist, dass das Klemmelement formschlüssig mit der Hülse verbunden ist, und dass die Hebeltaste mit ihrer Schwenkachse schwenkbar zwischen Klemmelement und der Hülse gehalten wird.The above object is achieved in a locking device initially and essentially by the fact that a clamping element is provided that the Clamping element is positively connected to the sleeve, and that the lever button is pivotally held with its pivot axis between clamping element and the sleeve.

Die Rastvorrichtung ist in einem Endbereich eines Staubsauger-Saugrohrs montierbar, wobei die Hülse der Rastvorrichtung das Staubsauger-Saugrohr vorzugsweise vollumfänglich umgibt. Das Staubsauger-Saugrohr umfasst dabei vorzugsweise mindestens ein Außenrohr und ein Innenrohr, wobei das Außenrohr und dass Innenrohr relativ zueinander teleskopierbar sind, so dass die Länge des Staubsauger-Saugrohrs variabel einstellbar ist. Die Rastvorrichtung dient beispielsweise zum Verbinden eines Handgriffs mit dem Staubsauger-Saugrohr, es ist aber auch vorgesehen, dass andere Bauelemente an das Staubsauger-Saugrohr angeschlossen werden, z. B. ein Saugschlauch ohne Handgriff.The latching device can be mounted in an end region of a vacuum cleaner suction pipe, wherein the sleeve of the latching device preferably surrounds the vacuum cleaner suction pipe in its entirety. The vacuum cleaner suction tube preferably comprises at least one outer tube and an inner tube, wherein the outer tube and the inner tube are telescopic relative to each other, so that the length of the vacuum cleaner suction tube is variably adjustable. The locking device is used, for example, to connect a handle with the vacuum cleaner suction tube, but it is also envisaged that other components are connected to the vacuum cleaner suction tube, z. B. a suction hose without handle.

Die Rastvorrichtung umfasst eine Hülse, die vorzugsweise als Träger für die weiteren Bauteile dient, nämlich mindestens eine Hebeltaste und mindestens eine Rückstellfeder. Die Hebeltaste ist um eine Schwenkachse schwenkbar in der Hülse gehalten, so dass der Rastvorsprung der Hebeltaste aus einer Verriegelungsposition in eine Freigabeposition bewegbar ist. Das Klemmelement ist formschlüssig mit der Hülse verbunden und derart an der Hülse angeordnet, dass die Hebeltaste mit ihrer Schwenkachse schwenkbar zwischen Klemmelement und der Hebeltaste gehalten wird. Zur Montage der Rastvorrichtung ist die Hebeltaste auf einfache Weise in die Hülse einführbar, wozu die Hebeltaste zumindest teilweise von außen durch eine Öffnung in die Hülse hineingeführt wird. Die Schwenkachse wird dabei in einem Auflagebereich positioniert. Vorzugsweise ist die Hebeltaste im Montagezustand zwischen Klemmelement und Hülse formschlüssig gehalten. Zusätzlich wird die Rückstellfeder vorzugsweise zwischen Hülse und Rückstelltaste positioniert. Abschließend wird das Klemmelement formschlüssig an der Hülse befestigt, vorzugsweise indem das Klemmelement mit mindestens einem Rasthaken an einem Rastbereich der Hülse verrastet.The locking device comprises a sleeve, which preferably serves as a carrier for the other components, namely at least one lever button and at least one return spring. The lever button is pivotally supported about a pivot axis in the sleeve so that the latch projection of the lever button is movable from a lock position to a release position. The clamping element is positively connected to the sleeve and arranged on the sleeve, that the lever button is pivotally held with its pivot axis between the clamping element and the lever button. For mounting the locking device, the lever button is easily inserted into the sleeve, for which purpose the lever button is at least partially guided from the outside through an opening in the sleeve. The pivot axis is thereby positioned in a support area. Preferably, the lever button is held positively in the assembled state between the clamping element and sleeve. In addition, the return spring is preferably positioned between sleeve and reset button. Finally, the clamping element is positively secured to the sleeve, preferably by the clamping element locked with at least one latching hook on a latching portion of the sleeve.

Durch das Klemmelement wird die Hebeltaste in Bezug auf die Hülse positionsfest angeordnet, allerdings derart, dass die Hülse im Rahmen einer Schwenkbewegung schwenkbar ist. Das Schwenken der Hebeltaste erfolgt vorzugsweise zwischen einer Verriegelungsposition, in der der Rastvorsprung der Hebeltaste in einem Rastzustand ist bzw. bei vorhandenem Handgriff mit diesem verrastet ist, und einer Freigabeposition, in der der Rastvorsprung der Hebeltaste nicht verrastet ist bzw. bei vorhandenem Handgriff ein Ablösen des Handgriffs möglich wäre.By the clamping element, the lever button is arranged fixed in position relative to the sleeve, however, such that the sleeve is pivotable in the context of a pivoting movement. The pivoting of the lever button takes place Preferably, between a locking position in which the latching projection of the lever button is in a latching state or is latched with existing handle with this, and a release position in which the latching projection of the lever button is not locked or in the presence of a handle detachment of the handle would be possible.

Die vorliegende Erfindung weist den Vorteil auf, dass die Hebeltaste und die Rückstellfeder auch im nicht am Staubsauger-Saugrohr montierten Zustand der Rastvorrichtung verlierfrei an der Hülse gehalten sind. Dadurch kann die Rastvorrichtung insgesamt mit sämtlichen Bauteilen vormontiert und anschließend an dem Staubsauger-Saugrohr montiert werden, wodurch der Montageprozess insgesamt vereinfacht wird. Zudem besteht der Vorteil, dass im Falle eines Ablösens der Rastvorrichtung, z. B. durch einen Sturz, nicht sämtliche Bauteile der Rastvorrichtung vereinzelt werden, sondern von dem Klemmelement zusammengehalten werden, so dass die Rastvorrichtung auf einfache Weise erneut montiert werden kann.The present invention has the advantage that the lever button and the return spring are held without loss on the sleeve, even in the state of the latching device that is not mounted on the vacuum cleaner suction tube. As a result, the latching device can be preassembled as a whole with all the components and then be mounted on the vacuum cleaner suction tube, as a result of which the entire assembly process is simplified. In addition, there is the advantage that in the case of a detachment of the locking device, for. B. by a fall, not all components of the locking device are separated, but are held together by the clamping element, so that the locking device can be re-assembled in a simple manner.

Insbesondere eine vorteilhafte Zuverlässigkeit der Befestigung der Hebeltaste an der Hülse lässt sich gemäß einer ersten Ausgestaltung dadurch erreichen, dass das Klemmelement zwei parallel zueinander angeordnete Rastflanken aufweist, und dass die Hülse zwei zu den Rastflanken korrespondierende Rastbereiche aufweist, insbesondere, dass die Rastflanken parallel zur Längserstreckung der Hülse verlaufen. Das Klemmelement ist folglich mit den zwei parallel zueinander angeordneten Rastflanken mit den korrespondierenden Rastbereichen an der Hülse formschlüssig verbunden, beispielsweise verrastet. Dazu weisen die Rastflanken insbesondere einen über ihre gesamte Längserstreckung verlaufenden Rastvorsprung auf, der den Rastbereich zumindest teilweise hintergreift, so dass eine formschlüssige Verbindung zwischen dem Klemmelement und der Hülse realisiert wird. Wahlweise ist auch vorgesehen, dass die Rastflanken jeweils mindestens eine Ausnehmung aufweisen, in die jeweils ein Rastvorsprung an der Hülse eingreift.In particular, an advantageous reliability of the attachment of the lever button on the sleeve can be achieved according to a first embodiment, characterized in that the clamping element has two mutually parallel locking edges, and that the sleeve has two locking surfaces corresponding to the latching areas, in particular, that the locking edges parallel to the longitudinal extent the sleeve run. The clamping element is thus positively connected with the two mutually parallel locking edges with the corresponding latching portions of the sleeve, for example, locked. For this purpose, the latching flanks in particular have a locking projection extending over their entire longitudinal extension, which engages behind the latching area at least partially, so that a positive connection is realized between the clamping element and the sleeve. Optionally, it is also provided that the latching flanks each have at least one recess into which in each case engages a latching projection on the sleeve.

Durch die Anordnung von zwei parallel zueinander verlaufenden Rastflanken, deren Rastnasen vorzugsweise gegenläufig zueinander orientiert sind, erhält das Klemmelement eine vorteilhafte Stabilität bei der Befestigung der Hebeltaste an der Hülse. Insbesondere sind die Rastflanken parallel zur Längserstreckung der Hülse orientiert, so dass die Rastflanken orthogonal zur Orientierung der Schwenkachse der Hebeltaste angeordnet sind.The arrangement of two mutually parallel locking edges, the locking lugs are preferably oriented in opposite directions, the clamping element receives an advantageous stability in the attachment of the lever button on the sleeve. In particular, the locking flanks are parallel to the longitudinal extent the sleeve oriented so that the locking edges are arranged orthogonal to the orientation of the pivot axis of the lever button.

Die Stabilität der Rastvorrichtung lässt sich gemäß einer weiteren Ausgestaltung dadurch steigern, dass das Klemmelement auf der Innenseite der Hülse angeordnet ist, so dass das Klemmelement im Montagezustand dem Staubsauger-Saugrohr zugewandt ist. Die Hebeltaste wird vorzugsweise von außen zumindest teilweise durch eine Öffnung in die Hülse eingeführt, wobei anschließend von innen das Klemmelement herangeführt wird und mit der Hülse verrastet wird. Die Hebeltaste wird folglich von außen, das Klemmelement von innen an die Hülse herangeführt. Das Anordnen des Klemmelements auf der Innenseite der Hülse verhindert, dass Teile der Rastvorrichtung im Montagezustand der Rastvorrichtung am Staubsauger-Saugrohr gelöst werden können. Eine Demontage der einzelnen Bauteile der Rastvorrichtung von der Hülse ist folglich erst nach der Demontage der Rastvorrichtung vom Staubsauger-Saugrohr möglich.The stability of the latching device can be increased according to a further embodiment in that the clamping element is arranged on the inside of the sleeve, so that the clamping element in the assembled state faces the vacuum cleaner suction tube. The lever button is preferably at least partially inserted from the outside through an opening in the sleeve, wherein subsequently the clamping element is brought in from the inside and is locked with the sleeve. The lever button is thus brought in from the outside, the clamping element from the inside to the sleeve. The arrangement of the clamping element on the inside of the sleeve prevents parts of the locking device can be solved in the assembled state of the locking device on the vacuum cleaner suction pipe. A disassembly of the individual components of the locking device of the sleeve is therefore possible only after disassembly of the locking device from the vacuum cleaner suction pipe.

Zur Verbesserung der Schwenkbarkeit der Hebeltaste hat sich gemäß einer weiteren Ausgestaltung als vorteilhaft herausgestellt, wenn vorgesehen ist, dass an der Hülse mindestens ein erster Teil einer Führungsbuchse für die Schwenkachse und an dem Klemmelement mindestens ein zweiter Teil einer Führungsbuchse ausgebildet ist, so dass die Schwenkachse im Montagezustand zwischen Klemmelement und Hülse in der Führungsbuchse geführt wird. An der Hülse ist mindestens ein erster Teil einer Führungsbuchse für die Schwenkachse ausgebildet, wobei auch vorgesehen ist, dass zwei gegenüberliegend angeordnete erste Teile einer Führungsbuchse ausgebildet sind, so dass die Schwenkachse der Hebeltaste an zwei Auflagern geführt wird. Die beiden ersten Teile einer Führungsbuchse liegen dabei vorteilhaft auf einer gemeinsamen - gedachten - Achse.To improve the pivoting of the lever button has been found to be advantageous according to another embodiment, if it is provided that at least a first part of a guide bush for the pivot axis and on the clamping element at least a second part of a guide bush is formed on the sleeve, so that the pivot axis is performed in the assembled state between the clamping element and sleeve in the guide bush. At least a first part of a guide bush for the pivot axis is formed on the sleeve, wherein it is also provided that two oppositely arranged first parts of a guide bush are formed so that the pivot axis of the lever key is guided on two supports. The first two parts of a guide bush are advantageously on a common - imaginary - axis.

Der erste Teil einer Führungsbuchse für die Schwenkachse ist beispielsweise als Halbschale ausgebildet, in die die Schwenkachse der Hebeltaste eingelegt wird. Der zweite Teil der Halbschale, nämlich der zweite Teil der Führungsbuchse, ist jeweils an dem Klemmelement angeordnet und auch als Halbschale ausgebildet, so dass im Montagezustand des Klemmelements eine die Schwenkachse umschließende Führungsbuchse, vorzugsweise auf beiden Seiten der Schwenkachse, ausgebildet ist. Die Führungsbuchse muss dabei die Schwenkachse jeweils nicht vollumfänglich umschließen, sondern es genügt eine derartige Führung, dass die Schwenkachse nicht aus der Führungsbuchse heraustreten kann. Dies erfolgt beispielsweise mit zwei gegenüberliegend angeordneten Schalenelementen, die zumindest einen Teil des Umfangs der Schwenkachse abdecken. Folglich sind insgesamt vier Halbschalen - Schalenelemente - vorgesehen, die eine zuverlässige Führung der Schwenkachse der Hebeltaste im Montagezustand der Rastvorrichtung sicherstellen. Die Führungsbuchse bzw. die Führungsbuchsen werden durch die Montage des Klemmelements an der Hülse um die Schwenkachse geschlossen und halten dadurch die Hebeltaste schwenkbar in ihrer Position.The first part of a guide bush for the pivot axis is formed for example as a half-shell, in which the pivot axis of the lever button is inserted. The second part of the half-shell, namely the second part of the guide bush, is respectively arranged on the clamping element and also designed as a half-shell, so that in the assembled state of the clamping element, a guide bush enclosing the pivot axis, preferably on both sides the pivot axis, is formed. The guide bushing does not have to completely enclose the pivot axis in each case, but it is sufficient such a guide that the pivot axis can not escape from the guide bushing. This is done, for example, with two oppositely arranged shell elements which cover at least part of the circumference of the pivot axis. Consequently, a total of four half-shells - shell elements - are provided which ensure reliable guidance of the pivot axis of the lever button in the assembled state of the locking device. The guide bushing or bushings are closed by the mounting of the clamping element on the sleeve about the pivot axis and thereby keep the lever button pivotally in position.

Eine vorteilhafte Rückstellung der Hebeltaste in die Verriegelungsposition lässt gemäß einer weiteren Ausgestaltung dadurch erreichen, dass sich die Rückstellfeder zwischen Hülse und Hebeltaste abstützt, und dass die Rückstellfeder stets eine Rückstellung der Hebeltaste in eine Verriegelungsposition anstrebt. Die Rückstellfeder ist beispielsweise als Spiralfeder, Tellerfeder oder Blattfeder ausgebildet und derart zwischen Hülse und Hebeltaste angeordnet, dass die Rückstellfeder stets eine Rückstellung der Hebeltaste in eine Verriegelungsposition anstrebt. Dabei ist einerseits vorgesehen, dass die Rückstellfeder als Spiralfeder ausgebildet und derart angeordnet ist, dass sie ein Drehmoment auf die Schwenkachse der Hebeltaste bewirkt, andererseits aber auch derart angeordnet sein kann, dass die Spiralfeder als Druckfeder wirkt und in Längsrichtung belastet wird.An advantageous provision of the lever button in the locking position can be achieved according to a further embodiment in that the return spring between the sleeve and lever button is supported, and that the return spring always strives for a provision of the lever button in a locking position. The return spring is formed for example as a spiral spring, plate spring or leaf spring and arranged between the sleeve and lever button, that the return spring always strives to restore the lever button in a locking position. It is provided on the one hand, that the return spring is formed as a spiral spring and arranged so that it causes a torque on the pivot axis of the lever button, but on the other hand can also be arranged such that the coil spring acts as a compression spring and is loaded in the longitudinal direction.

Um die Führung der Hebeltaste in der Rastvorrichtung zu verbessern, ist gemäß einer nächsten Ausgestaltung vorgesehen, dass das Klemmelement eine Ausnehmung für den Rastvorsprung der Hebeltaste aufweist, insbesondere, dass das Klemmelement den Rastvorsprung umschließt. Das Klemmelement wird mit der Hülse formschlüssig verbunden, wobei im Klemmelement eine einseitig offene oder eine geschlossene Ausnehmung vorgesehen ist, die den Rastvorsprung zumindest teilweise umschließt. Vorzugsweise wird der Rastvorsprung vollständig bezüglich seines Umfangs von der Ausnehmung umschlossen. Durch diese Ausnehmung wird der Rastvorsprung im Klemmelement geführt, wodurch unter anderem die Stabilität der Hebeltaste während eines Schwenkvorgangs erhöht wird, nämlich dadurch, dass der Rastvorprung der Hebeltaste nicht seitlich ausweichen kann, da eine derartige Bewegung durch die Ausnehmung unterbunden wird.In order to improve the guidance of the lever button in the latching device, is provided according to a next embodiment that the clamping element has a recess for the latching projection of the lever button, in particular, that the clamping element surrounds the latching projection. The clamping element is positively connected to the sleeve, wherein in the clamping element a unilaterally open or a closed recess is provided which surrounds the latching projection at least partially. Preferably, the latching projection is completely enclosed with respect to its circumference by the recess. Through this recess, the locking projection is guided in the clamping element, whereby inter alia, the stability of the lever button is increased during a pivoting operation, namely the fact that the locking projection the lever button can not escape laterally, since such movement is prevented by the recess.

Die Stabilität des Schwenkvorgangs wird gemäß einer weiteren Ausgestaltung zusätzlich dadurch verbessert, dass das Klemmelement einen zentral auf dem Klemmelement angeordneten Stabilisierungssteg aufweist, insbesondere, dass der Stabilisierungssteg parallel zur Längserstreckung der Hülse angeordnet ist. Der Stabilisierungssteg ist vorzugsweise mittig zwischen und parallel zu den beiden Rastflanken angeordnet. Im Montagezustand greift der Stabilisierungssteg zwischen zwei an der Hebeltaste vorgesehene Führungsflanken, so dass die Schwenkachse der Hebeltaste zusätzlich gegen ein Verkippen geschützt ist. Vorzugsweise sind die Führungsflanken orthogonal zu der Schwenkachse angeordnet, so dass die Schwenkachse die Führungsflanken als Ebenennormale durchtritt. Vorteilhaft ist auch vorgesehen, dass seitlich an beiden Führungsflanken ein Teil der Schwenkachse vorgesehen ist, so dass sich die Schwenkachse nicht vollständig an einem Stück durch die Hebeltaste erstreckt, sondern aus mindestens zwei Teilbereichen besteht.The stability of the pivoting action is additionally improved according to a further embodiment in that the clamping element has a stabilizing web arranged centrally on the clamping element, in particular that the stabilizing web is arranged parallel to the longitudinal extension of the sleeve. The stabilizing web is preferably arranged centrally between and parallel to the two locking flanks. In the assembled state, the stabilizing web engages between two guide flanks provided on the lever key, so that the pivot axis of the lever key is additionally protected against tilting. Preferably, the guide flanks are arranged orthogonal to the pivot axis, so that the pivot axis passes through the guide flanks as plane normal. Advantageously, it is also provided that a part of the pivot axis is provided laterally on both guide flanks, so that the pivot axis does not extend completely in one piece through the lever button, but consists of at least two subregions.

Die Montage der Rastvorrichtungen lässt sich gemäß einer weiteren Ausgestaltung dadurch vereinfachen, dass die Hülse mindestens eine erste Halbschale und mindestens eine zweite Halbschale umfasst, insbesondere, dass die Hebeltaste, die Rückstellfeder und das Klemmelement an der ersten Halbschale angeordnet sind. Die Hülse umfasst das Staubsauger-Saugrohr im Montagezustand vollumfänglich, wobei die Hülse eine erste Halbschale und eine zweite Halbschale umfasst, die jeweils über einen Endbereich des Staubsauger-Saugrohrs gestülpt und miteinander verrastet werden. Die Rastvorrichtung ist an der ersten Halbschale funktionsfähig vormontiert, indem das Klemmelement formschlüssig mit der Hülse, nämlich mit der ersten Halbschale, verrastet ist, so dass die Hebeltaste schwenkbar gehalten ist, wodurch der Rastvorsprung zwischen einer Verriegelungsposition und einer Freigabeposition verschwenkbar ist.The mounting of the latching devices can be simplified according to a further embodiment in that the sleeve comprises at least a first half-shell and at least one second half-shell, in particular, that the lever button, the return spring and the clamping element are arranged on the first half-shell. The sleeve comprises the vacuum cleaner suction tube in the assembled state fully, wherein the sleeve comprises a first half-shell and a second half-shell, which are each slipped over an end portion of the vacuum cleaner suction tube and locked together. The latching device is preassembled on the first half-shell functioning by the clamping element is positively locked to the sleeve, namely with the first half-shell, so that the lever button is pivotally supported, whereby the latching projection between a locking position and a release position is pivotable.

Die Rastvorrichtung wird vorzugsweise an einem zweiteiligen Staubsauger-Saugrohr montiert, nämlich an einem Staubsauger-Saugrohr, das ein Innenrohr und ein Außenrohr umfasst, wobei das Innenrohr und das Außenrohr relativ zueinander teleskopierbar sind. Dadurch lässt sich die Länge des Staubsauger-Saugrohrs flexibel einstellen.The latching device is preferably mounted on a two-part vacuum cleaner suction tube, namely on a vacuum cleaner suction tube comprising an inner tube and an outer tube, wherein the inner tube and the outer tube relative are telescopic to each other. As a result, the length of the vacuum cleaner suction tube can be adjusted flexibly.

Im Einzelnen gibt es nun eine Vielzahl von Möglichkeiten, die erfindungsgemäße Rastvorrichtung weiterzubilden und auszugestalten. Dazu wird verwiesen auf die dem Patentanspruch 1 nachgeordneten Patentansprüche sowie auf die nachfolgende Beschreibung von bevorzugten Ausführungsbeispielen in Verbindung mit der Zeichnung. In der Zeichnung zeigen:

Fig. 1
ein Ausführungsbeispiel einer Rastvorrichtung im Montagezustand an einem Staubsauger-Saugrohr,
Fig. 2
ein Ausführungsbeispiel einer Rastvorrichtung in Explosionsdarstellung,
Fig. 3
ein Ausführungsbeispiel eines Klemmelements in perspektivischer Ansicht,
Fig. 4
ein Ausführungsbeispiel einer Rastvorrichtung im zusammengefügten Zustand ohne Staubsauger-Saugrohr, und
Fig. 5
ein Ausführungsbeispiel einer Rastvorrichtung in Schnittansicht.
In particular, there are a variety of ways to further develop and design the locking device according to the invention. Reference is made to the claims subordinate to claim 1 and to the following description of preferred embodiments in conjunction with the drawings. In the drawing show:
Fig. 1
An embodiment of a locking device in the assembled state of a vacuum cleaner suction tube,
Fig. 2
an embodiment of a locking device in an exploded view,
Fig. 3
an embodiment of a clamping element in perspective view,
Fig. 4
an embodiment of a locking device in the assembled state without vacuum cleaner suction tube, and
Fig. 5
an embodiment of a locking device in a sectional view.

Fig. 1 zeigt ein Ausführungsbeispiel einer Rastvorrichtung 1 zum Verbinden eines - nicht dargestellten - Handgriffs mit einem Staubsauger-Saugrohr 2. Die Rastvorrichtung 1 ist in einem Endbereich des Staubsauger-Saugrohrs 2 montiert und umfasst eine Hülse 3 mit einer Hebeltaste 4. Die Hülse 3 umfasst eine erste Halbschale 3a und eine zweite Halbschale 3b, die das Staubsauger-Saugrohr 2 in dem Endbereich vollumfänglich umschließen. Die erste Halbschale 3a und die zweite Halbschale 3b sind miteinander verrastet. Die Hebeltaste 4 befindet sich in einer Verriegelungsposition. Fig. 1 shows an embodiment of a locking device 1 for connecting a - not shown - handle with a vacuum cleaner suction pipe 2. The locking device 1 is mounted in an end region of the vacuum cleaner suction tube 2 and comprises a sleeve 3 with a lever button 4. The sleeve 3 comprises a first Half shell 3a and a second half-shell 3b, which completely surround the vacuum cleaner suction tube 2 in the end region. The first half-shell 3a and the second half-shell 3b are locked together. The lever button 4 is in a locking position.

Fig. 2 zeigt eine Explosionsdarstellung eines Ausführungsbeispiels einer Rastvorrichtung 1 in perspektivischer Ansicht. Die Rastvorrichtung 1 umfasst eine Hülse 3, die wiederum eine erste Halbschale 3a und eine zweite Halbschale 3b umfasst. Die erste Halbschale 3a und die zweite Halbschale 3b der Hülse 3 sind mittels Rasthaken 5 und korrespondierenden Rastausnehmungen 6 miteinander verrastbar. Die Hebeltaste 4 ist zusammen mit einer Rückstellfeder 7 unterhalb der ersten Halbschale 3a dargestellt. Die Hebeltaste 4 weist einen Rastvorsprung 8 und eine Schwenkachse 9 auf. Fig. 2 shows an exploded view of an embodiment of a locking device 1 in a perspective view. The latching device 1 comprises a sleeve 3, which in turn comprises a first half-shell 3a and a second half-shell 3b. The first half-shell 3a and the second half-shell 3b of the Sleeve 3 are latched together by means of latching hook 5 and corresponding recesses 6. The lever button 4 is shown together with a return spring 7 below the first half-shell 3a. The lever button 4 has a latching projection 8 and a pivot axis 9.

Zur Montage wird die Hebeltaste 4 zumindest teilweise durch eine Öffnung 10 in die Hülse 3 eingeführt und mit einem Klemmelement 11 bezüglich ihrer Lage fixiert, nämlich indem das Klemmelement 11 formschlüssig mit der Hülse 3 verbunden wird, indem das Klemmelement 11 mit der Hülse 3, insbesondere der ersten Halbschale 3a, verrastet. Anschließend ist die Hebeltaste 4 um ihre Schwenkachse 9 schwenkbar zwischen Klemmelement 11 und der Hülse 3 gehalten. Zur Befestigung an der Hülse 3 weist das Klemmelement 11 zwei parallel zueinander verlaufende Rastflanken 12 auf, die mit korrespondierenden Rastbereichen 13 an der Hülse 3 zusammenwirken, indem die Rastflanken 12 die Rastbereiche 13 formschlüssig hintergreifen. Sowohl die Rastflanken 12 als auch die Rastbereiche 13 sind dabei derart angeordnet, dass sie parallel zur Längserstreckung der Hülse 3, insbesondere orhtogonal zur Schwenkachse 9 verlaufen.For assembly, the lever button 4 is at least partially inserted through an opening 10 in the sleeve 3 and fixed with a clamping element 11 with respect to their position, namely by the clamping element 11 is positively connected to the sleeve 3 by the clamping member 11 with the sleeve 3, in particular the first half-shell 3a, locked. Subsequently, the lever button 4 is held about its pivot axis 9 pivotally between clamping element 11 and the sleeve 3. For attachment to the sleeve 3, the clamping element 11 has two mutually parallel locking flanks 12 which cooperate with corresponding latching regions 13 on the sleeve 3 by the locking edges 12 engage behind the latching regions 13 in a form-fitting manner. Both the locking flanks 12 and the latching regions 13 are arranged such that they extend parallel to the longitudinal extent of the sleeve 3, in particular orthogonal to the pivot axis 9.

Das Klemmelement 11 ist auf der Innenseite der Hülse 3, insbesondere auf der Innenseite der ersten Halbschale 3a der Hülse 3 angeordnet, so dass das Klemmelement 11 im Montagezustand dem Staubsauger-Saugrohr zugewandt ist. Zur Führung der Schwenkachse 9 der Hebeltaste 4 sind an der Hülse 3 zwei erste Teile 14 einer Führungsbuchse ausgebildet, in die die Schwenkachse 9 der Hebeltaste 4 eingebracht wird. Die ersten Teile 14 einer Führungsbuchse umschließen die Schwenkachse 9 im Montagezustand teilweise. Um die Hebeltaste 4 im Montagezustand bezüglich ihrer Position zu fixieren, gleichzeitig aber eine Schwenkbarkeit zu ermöglichen, sind an dem Klemmelement 11 zwei zweite Teile 15 einer Führungsbuchse ausgebildet, so dass die Schwenkachse 9 der Hebeltaste 4 im Montagezustand zwischen den ersten Teilen 14 einer Führungsbuchse und den zweiten Teilen 15 einer Führungsbuchse ortsfest, aber schwenkbar gehalten ist.The clamping element 11 is arranged on the inside of the sleeve 3, in particular on the inside of the first half-shell 3a of the sleeve 3, so that the clamping element 11 faces the vacuum cleaner suction tube in the assembled state. To guide the pivot axis 9 of the lever button 4 two first parts 14 of a guide bush are formed on the sleeve 3, in which the pivot axis 9 of the lever button 4 is introduced. The first parts 14 of a guide bushing partially enclose the pivot axis 9 in the assembled state. In order to fix the lever button 4 in the assembled state with respect to their position, but at the same time to allow pivoting, two second parts 15 of a guide bush are formed on the clamping element 11, so that the pivot axis 9 of the lever button 4 in the assembled state between the first parts 14 of a guide bush and the second parts 15 a guide bushing stationary, but is held pivotally.

Die Hebeltaste 4 ist im Montagezustand zwischen einer Verriegelungsposition und einer Freigabeposition verschwenkbar. Dabei wird der Rastvorsprung 8 der Hebeltaste 4 durch die Rückstellfeder 7 stets in Richtung der Rastposition gedrängt, indem sich die Rückstellfeder 7 zwischen Hebeltaste 4, nämlich dem Rastvorsprung 8, und der Innenseite der Hülse 3, nämlich der ersten Halbschale 3a, abstützt und als Druckfeder eine Kraft in Richtung der Rastposition auf die Hebeltaste 4 ausübt. Zur besseren Führung des Rastvorsprungs 8 der Hebeltaste 4 weist das Klemmelement 11 eine Ausnehmung 16 für den Rastvorsprung 8 auf, die den Rastvorsprung 8 im Montagezustand von drei Seiten umgreift.The lever button 4 is pivotable in the assembled state between a locking position and a release position. In this case, the locking projection 8 of the lever button 4 by the return spring 7 always in the direction of the locking position urged by the return spring 7 between the lever button 4, namely the locking projection 8, and the inside of the sleeve 3, namely the first half-shell 3a, supported and exerts a force in the direction of the locking position on the lever button 4 as a compression spring. For better guidance of the latching projection 8 of the lever button 4, the clamping element 11 has a recess 16 for the latching projection 8, which surrounds the latching projection 8 in the assembled state of three sides.

Fig. 3 zeigt ein Ausführungsbeispiel eines Klemmelements 11 in perspektivischer Ansicht. Die beiden Rastflanken 12 sind parallel zueinander angeordnet und verlaufen in den Randbereichen des Klemmelements 11. Die Rastnasen der Rastflanken sind gegenüberliegend und zueinander weisend vorgesehen. Zwischen den Rastflanken 12 sind die beiden zweiten Teile 15 einer Führungsbuchse zur Führung der Schwenkachse einer Hebeltaste angeordnet. Parallel zu den Rastflanken 12 ist zentral auf dem Klemmelement 11 ein Stabilisierungssteg 17 vorgesehen, der im Montagezustand zwischen zwei Führungsflanken der Hebeltaste angeordnet ist und dadurch eine zuverlässige Führung der Hebeltaste gewährleistet. Fig. 3 shows an embodiment of a clamping element 11 in a perspective view. The two locking flanks 12 are arranged parallel to one another and extend in the edge regions of the clamping element 11. The latching lugs of the latching flanks are provided opposite one another and facing one another. Between the locking flanks 12, the two second parts 15 of a guide bush for guiding the pivot axis of a lever button are arranged. Parallel to the locking flanks 12, a stabilizing web 17 is centrally provided on the clamping element 11, which is arranged in the assembled state between two guide flanks of the lever button and thereby ensures reliable guidance of the lever button.

Fig. 4 zeigt ein Ausführungsbeispiel einer Rastvorrichtung 1 im zusammengefügten Zustand der Hülse 3, nämlich der ersten Halbschale 3a und der zweiten Halbschale 3b, ohne Staubsauger-Saugrohr. Die Hebeltaste 4 ist in der ersten Halbschale 3a montiert und kann durch Druck auf ihre Oberseite betätigt werden, wodurch sie aus der dargestellten Verriegelungsposition in eine Freigabeposition verschwenkt, wodurch der Rastvorsprung der Hebeltaste 4 eine formschlüssige Verbindung freigibt. Fig. 4 shows an embodiment of a locking device 1 in the assembled state of the sleeve 3, namely the first half-shell 3a and the second half-shell 3b, without vacuum cleaner suction tube. The lever button 4 is mounted in the first half-shell 3a and can be actuated by pressure on its upper side, whereby it pivots from the illustrated locking position into a release position, whereby the latching projection of the lever button 4 releases a positive connection.

Fig. 5 zeigt ein Ausführungsbeispiel einer Rastvorrichtung 1 in geschnittener Seitenansicht, wobei der Schnitt in einer Ebene in Längsrichtung der Rastvorrichtung 1 geführt ist. Die Rastvorrichtung 1 ist ohne Staubsauger-Saugrohr zusammengefügt, nämlich die erste Halbschale 3a und die zweite Halbschale 3b der Hülse 3 sind verbunden. Die Rastvorsprünge 5 der zweiten Halbschale 3b sind mit den korrespondierenden Rastausnehmungen 6 der ersten Halbschale 3a verrastet. Der Rastvorsprung 8 ist in einer Verriegelungsposition und wird durch die Rückstellfeder 7, die sich einerseits an der Hülse 3 und andererseits am Rastvorsprung 8 abstützt, in dieser Verriegelungsposition gehalten. Durch Betätigung der Hebeltaste 4, die dadurch um die Schwenkachse 9 verschwenkt wird, wird der Rastvorsprung 8 in eine Freigabeposition verbracht, nämlich indem sich der Rastvorsprung 8 in Richtung der Hülse 3, insbesondere in Richtung der ersten Halbschale 3a, verschwenkt, wodurch die Rückstellfeder 7 komprimiert wird. Sobald die Hebeltaste 4 durch einen Benutzer losgelassen wird, bewirkt die Rückstellfeder 7 eine Rückstellung des Rastvorsprungs 8 und damit der Hebeltaste 4 in die dargestellte Verriegelungsposition. Ein - nicht dargestellter - Handgriff ist gemäß Fig. 5 von links in die Rastvorrichtung 1 einführbar. Der Handgriff würde zunächst den Rastvorsprung 8 aus der Verriegelungsposition in die Freigabeposition zurückdrücken, so dass der Rastvorsprung 8 anschließend mit einer Rastausnehmung am Handgriff formschlüssig verrasten kann, indem der Rastvorsprung 8 in seine Verriegelungsposition zurückkehrt. Fig. 5 shows an embodiment of a locking device 1 in a sectional side view, wherein the section is guided in a plane in the longitudinal direction of the latching device 1. The locking device 1 is assembled without a vacuum cleaner suction tube, namely, the first half-shell 3a and the second half-shell 3b of the sleeve 3 are connected. The latching projections 5 of the second half-shell 3b are latched to the corresponding latching recesses 6 of the first half-shell 3a. The locking projection 8 is in a locking position and is supported by the return spring 7, which is supported on the one hand on the sleeve 3 and on the other hand on the locking projection 8, in this locking position held. By actuating the lever button 4, which is thereby pivoted about the pivot axis 9, the locking projection 8 is moved to a release position, namely by the locking projection 8 in the direction of the sleeve 3, in particular in the direction of the first half-shell 3a, pivoted, whereby the return spring. 7 is compressed. Once the lever button 4 is released by a user, the return spring 7 causes a provision of the locking projection 8 and thus the lever button 4 in the illustrated locking position. A - not shown - handle is according to Fig. 5 from the left into the locking device 1 can be inserted. The handle would first push back the latching projection 8 from the locking position to the release position, so that the latching projection 8 can then latch positively with a latching recess on the handle by the latching projection 8 returns to its locking position.

Der Stabilisierungssteg 17 stabilisiert die Hebeltaste 4 beim Verschwenken um die Schenkachse 9, wobei sie durch das Klemmelement 11, dass von der Innenseite der Hülse 3 montiert ist, in ihrer Position gehalten wird.The stabilizing web 17 stabilizes the lever button 4 when pivoting about the pivot axis 9, being held in position by the clamping element 11 mounted from the inside of the sleeve 3.

Claims (9)

  1. A catch device (1) for connecting a handle to a vacuum cleaner suction pipe (2), wherein the catch device (1) is mountable on a end region of a vacuum cleaner suction pipe (2), comprising at least one sleeve (3), at least one lever button (4) and at least one reset spring (7), wherein the lever button (4) has a catch projection (8) and a pivot axle (9),
    characterized in
    that the sleeve (3) is used as a carrier for the lever button (4) and the reset spring (7), that a clamp element (11) is provided, that the clamp element (11) is positively connected to the sleeve (3), and that the pivot axle (9) of the lever button (4) is pivotably held between the clamp element (11) and the sleeve (3).
  2. Catch device (1) according to claim 1, characterized in that the clamp element (11) has two catch flanks (12) which are located parallel to one another, and that the sleeve (3) has two catch regions (13) corresponding to the catch flanks (12), in particular in that the catch flanks (12) run parallel to the longitudinal direction of the sleeve.
  3. Catch device (1) according to claim 1 or 2, characterized in that the clamp element (11) is located on an inner side of the sleeve (3) so that, in the mounted state, the clamp element (11) faces the vacuum cleaner suction pipe (2).
  4. Catch device (1) according to any one of claims 1 to 3, characterized in that at least a first part (14) of a guide bush for the pivot axle (9) is located on the sleeve (3) and at least a second part (15) of the guide bush is located on the clamp element (11) so that the pivot axle (9) of the lever button (4) is guided in the guide bush between the clamp element (11) and the sleeve (3).
  5. Catch device (1) according to any one of claims 1 to 4, characterized in that the reset spring (7) is supported between the sleeve (3) and the lever button (4), and that the reset spring (7) continuously acts on the lever button (4) to force it in a locking position.
  6. Catch device according to any one of claims 1 to 6, characterized in that the clamp element (11) has a recess (16) for the catch projection (8) of the lever button (4), in particular that the clamp element (11) surrounds the catch projection (8).
  7. Catch device (1) according to any one of claims 1 to 6, characterized in that the clamp element (11) has a stabilization bridge (17), in particular that the stabilization bridge (17) is arranged extending parallel to the longitudinal direction of the sleeve (3).
  8. Catch device according to any one of claims 1 to 7, characterized in that the sleeve (3) comprises at least one first half shell (3a) and at least one second half shell (3b), in particular, that the lever button (4), the reset spring (7) and the clamp element (11) are located on the first half shell (3a).
  9. Vacuum cleaner suction pipe (2), comprising at least one inner pipe and at least one outer pipe, wherein the outer pipe and the inner pipe are able to telescope relative to one another, characterized in that a catch device (1) according to any one of claims 1 to 8 is arranged on the vacuum cleaner suction pipe (2).
EP14164703.2A 2013-04-16 2014-04-15 Latch device for a vacuum cleaner suction hose Active EP2792288B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013206773 2013-04-16
DE102013211766.3A DE102013211766A1 (en) 2013-04-16 2013-06-21 Detent device for a vacuum cleaner suction tube

Publications (2)

Publication Number Publication Date
EP2792288A1 EP2792288A1 (en) 2014-10-22
EP2792288B1 true EP2792288B1 (en) 2017-03-22

Family

ID=50478772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14164703.2A Active EP2792288B1 (en) 2013-04-16 2014-04-15 Latch device for a vacuum cleaner suction hose

Country Status (6)

Country Link
US (1) US9655488B2 (en)
EP (1) EP2792288B1 (en)
CN (1) CN104107009B (en)
DE (1) DE102013211766A1 (en)
EA (1) EA027155B1 (en)
HK (1) HK1203137A1 (en)

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DE102015111131A1 (en) * 2015-07-09 2017-01-12 Miele & Cie. Kg An adapter unit for a floor care appliance, suction pipe for a floor care appliance with an adapter unit, floor care appliance and method for producing an adapter unit for a floor care appliance
DE102016104557A1 (en) * 2016-03-12 2017-09-14 Fischer Rohrtechnik Gmbh Vacuum cleaner suction tube
CN108143348A (en) * 2018-02-09 2018-06-12 宁波暴黑智能科技有限公司 Dust catcher long tube
DE102018120641A1 (en) * 2018-08-23 2020-02-27 Vorwerk & Co. Interholding Gmbh System, suction pipe and method for unlocking a connection between a vacuum cleaner main body and a suction nozzle or for unlocking a connection between a suction pipe and a suction nozzle
KR102099683B1 (en) * 2018-08-30 2020-04-10 삼성전자주식회사 A vaccum cleaner
CN111281261B (en) * 2018-12-10 2024-05-28 苏州市春菊电器有限公司 Dust collector handle connection structure with self-locking function and dust collector

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DE3931639C2 (en) * 1989-09-22 1999-12-16 Miele & Cie Pipe connector between an inner tube and an outer tube with a releasable tube lock
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Also Published As

Publication number Publication date
CN104107009B (en) 2018-11-20
HK1203137A1 (en) 2015-10-23
CN104107009A (en) 2014-10-22
EA201400349A3 (en) 2014-12-30
EA201400349A2 (en) 2014-10-30
US9655488B2 (en) 2017-05-23
US20140306444A1 (en) 2014-10-16
DE102013211766A1 (en) 2014-10-16
EA027155B1 (en) 2017-06-30
EP2792288A1 (en) 2014-10-22

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