EP1722664A1 - Vacuum cleaner - Google Patents

Vacuum cleaner

Info

Publication number
EP1722664A1
EP1722664A1 EP05715855A EP05715855A EP1722664A1 EP 1722664 A1 EP1722664 A1 EP 1722664A1 EP 05715855 A EP05715855 A EP 05715855A EP 05715855 A EP05715855 A EP 05715855A EP 1722664 A1 EP1722664 A1 EP 1722664A1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
wall
cleaner according
handle
elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05715855A
Other languages
German (de)
French (fr)
Other versions
EP1722664B1 (en
EP1722664B8 (en
Inventor
Eugenio Venturini
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP1722664A1 publication Critical patent/EP1722664A1/en
Publication of EP1722664B1 publication Critical patent/EP1722664B1/en
Application granted granted Critical
Publication of EP1722664B8 publication Critical patent/EP1722664B8/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
    • 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
    • A47L9/32—Handles
    • A47L9/327—Handles for suction cleaners with hose between nozzle and casing

Definitions

  • the invention relates to a vacuum cleaner with a vacuum cleaner housing which comprises a lower part having a dirt collecting container and an upper part which can be placed on the lower part and accommodates a suction unit, and with a handle bracket which is pivotably mounted on the lower part and is U-shaped and has a handle as well as two legs protruding from the end of the handle, locking elements being arranged on the legs and on the upper part, which engage behind one another when the handle bar is aligned vertically.
  • Such a vacuum cleaner is known from GB 2 250 427 A.
  • the lower part forms a dirt collecting container which can be subjected to a negative pressure by means of the suction unit arranged in the upper part, so that dirt can be sucked into the collecting container.
  • To empty the collecting container it is necessary to remove the upper part from the lower part, while an airtight connection of the upper part with the lower part must be ensured for the operation of the vacuum cleaner.
  • the upper part can be locked to the lower part using the handle. For this purpose, it is necessary in the known vacuum cleaner to pivot the handle bar into its vertical position.
  • the handle bar has a pin on the inner sides of the legs and a pin receptacle is arranged on the outer sides of the upper part, into which the pin engages when the handle bar is aligned vertically. In this position, the pin engages behind the associated receptacle, so that the upper part is locked to the lower part.
  • the pin thus serves on the one hand to lock the upper part with the lower part, and on the other hand the handle is fixed in its vertical position with the aid of the pin.
  • the definition of the handle bar simplifies handling of the vacuum cleaner. The handlebar is thus subjected to a considerable mechanical load, so that there is a risk of damage and thus a limitation of the lifespan of the vacuum cleaner.
  • the object of the present invention is to develop a vacuum cleaner of the type mentioned at the outset in such a way that the risk of damage to the vacuum cleaner when it is being handled can be reduced.
  • latching elements are arranged at a distance from the locking elements at least on one leg and on the vacuum cleaner housing and can be brought into engagement with one another by pivoting the handle bar into its vertical position.
  • the elements for locking the upper part with the lower part are decoupled from the elements for fixing the handle in its vertical position.
  • Interacting locking elements are used to fix the handle in its vertical position, and in addition the vacuum cleaner comprises locking elements with which the upper part can be locked with the lower part. This makes it possible to design the locking and latching elements in different designs and to optimize them for their respective functions. This significantly reduces the risk of damage to the vacuum cleaner during its handling.
  • the at least one latching element arranged on the vacuum cleaner housing is a resilient element Molded outer wall.
  • This has the advantage that the structural elasticity of the outer wall can be used to form an elastic restoring force, against the action of which the locking elements arranged on the at least one leg and on the vacuum cleaner housing can be brought into engagement with one another.
  • the shaping of the locking element on an outer wall of the vacuum cleaner housing also makes it possible to produce the vacuum cleaner inexpensively, the locking element connected in one piece to the outer wall also being able to withstand high mechanical loads.
  • the at least one latching element arranged on the vacuum cleaner housing is preferably molded onto an edge section of an outer wall of the upper part facing the lower part.
  • the outer wall is elastically deformable in such an edge section with relatively little effort, without fear of damage to the outer wall.
  • the formula elasticity of the edge cut of the outer wall can be used to ensure a mechanically resilient fixing of the handle in its vertical position.
  • the latching element arranged on the at least one leg is preferably molded onto a resilient wall section of the leg.
  • the latching element can be designed to be particularly stable without it being necessary for the latching element to be deformable, the deformability required for producing a latching connection is rather ensured by the edge section of the leg, which is designed to be correspondingly elastic in shape.
  • the two legs are double-walled at least at the height of the latching elements and have an inner wall facing the vacuum cleaner housing when the handle is vertically oriented and an outer wall facing away from the vacuum cleaner housing, the inner wall carrying at least one latching element and being resilient in the area of the latching element is trained.
  • the inner wall is preferably connected to the outer wall via connecting webs, the latching elements of the respective leg being molded onto a free-standing edge section of the inner wall of the leg.
  • the locking elements are designed as arcuate wall elements which are aligned concentrically with the pivot axis and engage behind one another at least when the handle is vertically aligned, which are arranged on the outside on the upper part and on the inside on the legs.
  • the wall elements are preferably connected in one piece to the upper part or the respective leg.
  • the wall elements engage behind a pivoting range of the handle bar of at least 90 °.
  • This has the advantage that the upper part is still locked to the lower part even if the handle bar is not exactly in its vertically oriented position.
  • the wall elements engage behind a swivel range of at least 135 °, in particular over a swivel range of approximately 160 ° to 180 °. This reduces the risk that a user erroneously releases the locking of the upper part with the lower part and thus their flow-tight connection by deflecting the handle from its vertical position. Rather, for unlocking, it is necessary to consciously pivot the handlebar over a relatively large pivoting range, preferably starting from a vertical orientation of at least 90 °.
  • the locking of the upper part with the lower part can only be canceled by pivoting the handle in a first pivoting direction.
  • the handlebar must be pivoted deliberately by the user in a certain pivoting direction in order to release the locking between the upper part and the lower part. This reduces the risk of inadvertent unlocking.
  • a stop is arranged on one of the locking elements engaging behind one another, which stop can be applied to the other locking element in order to limit the pivoting movement of the handle.
  • the handle bar In a first pivoting direction, the handle bar can thus be pivoted so far starting from its vertical orientation that the mutually assigned locking elements can be released and consequently the upper part can be removed from the lower part, while in a second pivoting direction the handle bar can only be pivoted so far until the stop arranged on a locking element on the associated whose locking element strikes. In this position, the mutually engaging arrangement of the mutually associated locking elements remains, so that the upper part is reliably locked to the lower part.
  • a mechanically particularly resilient embodiment of the vacuum cleaner according to the invention can be achieved in that the wall element arranged on each leg is designed as an annular wall which is aligned concentrically with the axis of rotation and has a recess for the passage of the projection arranged on the upper part.
  • the handlebar which is pivotably held on the lower part, is pivoted into a position such that the recess of the ring wall arranged on the legs is oriented vertically upward, so that the upper part can be placed on the lower part, whereby the wall element of the upper part is immersed in the recess of the ring wall.
  • the handle bar can then be pivoted into its vertical position, in which case the ring wall engages over the wall element of the upper part and can thus act on the upper part with a clamping force in the direction of the lower part.
  • the ring wall is arranged concentrically with a bearing bush of the respective leg, which surrounds a bearing journal held on the lower part.
  • the wall element arranged on the upper part can thus dip into the annular space between the annular wall and the bearing bush.
  • the ring wall is preferably connected to the bearing bush via at least one connecting wall.
  • the connecting wall is preferably oriented radially with respect to the pivot axis.
  • the connecting wall can form a stop to limit the pivoting movement of the handle bar.
  • the wall element arranged on the upper part is preferably designed as a strip-like projection.
  • Figure 1 is a diagrammatic representation of a vacuum cleaner according to the invention
  • Figure 2 is a partial sectional view taken along line 2-2 in Figure 1;
  • Figure 3 is a sectional view taken along line 3-3 in Figure 2 and
  • Figure 4 is a sectional view taken along line 4-4 in Figure 3.
  • a vacuum cleaner designated as a whole by reference number 10, which is essentially cylindrical and comprises a vacuum cleaner housing 11 with a lower part 12 and an upper part 14 which can be placed thereon.
  • the lower part 12 forms a dirt collecting container 16, into which dirt is collected via a suction nozzle 17 can be sucked in.
  • a suction hose known per se and therefore not shown in the drawing can be connected to the suction nozzle 17 in a conventional manner and carries a suction nozzle at its free end.
  • the lower part 12 is covered by the upper part 14, which receives a suction unit with a suction turbine and an electric motor in a known manner.
  • Suction units of this type are known to the person skilled in the art.
  • the dirt collecting container 16 can be subjected to negative pressure by means of the suction unit.
  • the lower part 12 In its upper edge region, the lower part 12 has a handle bracket 20 articulated on the outside thereof, which is mounted on the lower part 12 so as to be pivotable about a pivot axis 22. It is essentially U-shaped and comprises a web running parallel to the pivot axis 20, which forms a handle 24, and legs 25, 26 projecting from the end of the handle 24, which are of identical design and end in diametrically opposite regions of the lower part 12 these are articulated.
  • the legs 25 and 26 are each double-walled and comprise an inner wall 28 and an outer wall 29 that runs essentially parallel to this.
  • the inner wall 28 faces the upper part 14 and the outer wall 29 faces away from the upper part 14.
  • the inner wall 28 is connected in one piece to the outer wall 29, namely that a plurality of connecting webs 30 spaced apart from one another run between the inner wall 28 and the outer wall 29, which give the handle bar 20 a mechanically highly resilient design.
  • the upper part 14 has a cover 32 with a cylindrical jacket-shaped outer wall 33 which, in an edge section 34 facing the lower part 12, each has a leg 25 or 26 associated with two outwardly pointing ribs 36, 37, which form a latching receptacle 38 between them and in one piece are connected to the outer wall 33.
  • a rib-shaped locking lug 40 is formed on the inner wall 28 of the respective leg 25 or 26.
  • the latching receptacle 38 and the latching lug 40 thus form latching elements which can be brought into engagement with one another by pivoting the handle bar 20 into its vertical position.
  • the handle bar 20 is reliably held in its vertical position by means of the latching receptacle 38 and the latching lug 40, each of which is assigned to a leg 25 or 26 and is arranged on diametrically opposite sides of the vacuum cleaner 10.
  • the outer wall 33 of the cover 32 is designed to be dimensionally elastic.
  • the region of the outer wall 33 which is adjacent to the latching receptacle 38 can therefore be deformed radially inward with respect to the cylinder axis 42 of the vacuum cleaner 10, and the inner wall 28 can be radially outward, namely in the direction of the outer wall 29 are deformed to bring the locking receptacle 38 and the locking lug 40 into engagement with one another.
  • Additional spring elements to ensure a latching connection are therefore not required and the ribs 36 and 37, like the latching lug 40, can be designed to be dimensionally stable.
  • the legs 25 and 26 each have at their free end a bearing bush 45 which slidably abuts a bearing pin 46 fixed on the lower part 12.
  • the bearing bush 45 is integrally connected to a wall element in the form of an annular wall 50, which extends radially to the pivot axis 22, and surrounds the bearing bush 45 in the circumferential direction and has a recess 52. The latter forms an access to the annular space between the bearing bush 45 and the ring wall 50.
  • an arc-shaped support wall 54 is arranged between the ring wall 50 and the bearing bush 45, offset radially inwards, which is integral with the bearing bush 45 and the ring wall 50 connected is.
  • the upper part 14 has a wall element in the form of a strip-shaped projection 56 at a distance from the pivot axis 22 below the latching receptacle 38, said projection being curved in a circular arc with respect to the pivot axis 22 and projecting radially outward from the upper part 14 with respect to the cylinder axis 42 ,
  • the strip-shaped projection 56 of the upper part 14 is overlapped by the ring wall 50 when the handle bracket 20 is aligned vertically, which lies flat against the top of the strip-shaped projection 56.
  • the upper part 14 cannot be separated from the lower part 12 when the handle 20 is aligned vertically; the ring wall 50 and the strip-shaped projection 56 form interlocking locking elements, with the aid of which the upper part 14 is locked to the lower part 12.
  • the upper part 14 is to be separated from the lower part 12, for example in order to be able to empty the dirt collecting container 16, then it is necessary to pivot the handle bar 20 about the pivot axis 22 to such an extent that the recess 52 of the ring wall 50 is arranged at the level of the strip-like projection 56 is. With this orientation of the handle bar 20, the upper part 14 can be raised from the lower part 12, the strip-like projection 56 then passing through the cutout 52. Conversely, with this orientation of the handle 20, the upper part 14 can also be placed on the lower part 12, in which case the strip-like projection 56 passes the recess 52 and can be placed on the radially outer side of the support wall 54.
  • the handle bar 20 can then be pivoted, the ring wall 50 then engaging behind the strip-like projection 56 and consequently the upper part 14 being locked with the lower part 12.
  • the aligned alignment of the recess 52 with the strip-like projection 56 thus defines an unlocking position. This is given to the user of the vacuum cleaner 10 by the fact that an intermediate wall 58 which runs essentially tangentially to the bearing bush 45 and via which the support wall 54 is connected in one piece to the ring wall 50 bears against the strip-like projection 56. If the handle bar 20 is pivoted starting from its vertical orientation in the direction facing away from the unlocking position, the radially aligned connecting wall 48 abuts the strip-like projection 56, the upper part 14 being held in place with the lower part 12. The radial connecting wall 48 thus, like the intermediate wall 58, forms a stop limiting the pivoting movement of the handle bracket 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

The invention relates to a vacuum cleaner provided with a vacuum housing comprising a lower part (12) and an upper part (14) which can be placed thereon, and a handlebar (20) which is mounted on the lower part such that it can pivot about a pivotable axis, said handlebar comprising a handle (24), in addition to two limbs (5, 26) which are arranged at a distance on the end side of the handle. Locking elements (50, 56) are arranged on the limbs (25, 26) and on the upper part, said locking elements engaging with each other in a vertical direction of the handlebar (20). According to the invention, in order to improve said vacuum cleaner such that damage to the vacuum cleaner can be reduced during handling, latching elements (38, 40) are arranged at least one limb (25, 26) and on the vacuum cleaner housing at a distance in relation to the locking elements (50, 56), said latching elements can be brought into contact with each other by pivoting the handlebar (20) in the vertical position thereof.

Description

Staubsauger vacuum cleaner
Die Erfindung betrifft einen Staubsauger mit einem Staubsaugergehäuse, das ein einen Schmutzsammelbehälter aufweisendes Unterteil und ein auf das Unterteil aufsetzbares, ein Saugaggregat aufnehmendes Oberteil umfaßt, und mit einem um eine Schwenkachse verschwenkbar am Unterteil gelagerten Griffbügel, der U-förmig ausgestaltet ist und einen Griff aufweist sowie zwei vom Griff endseitig abstehende Schenkel, wobei an den Schenkeln und am Oberteil Verriegelungselemente angeordnet sind, die einander bei vertikale Ausrichtung des Griffbügels hintergreifen.The invention relates to a vacuum cleaner with a vacuum cleaner housing which comprises a lower part having a dirt collecting container and an upper part which can be placed on the lower part and accommodates a suction unit, and with a handle bracket which is pivotably mounted on the lower part and is U-shaped and has a handle as well as two legs protruding from the end of the handle, locking elements being arranged on the legs and on the upper part, which engage behind one another when the handle bar is aligned vertically.
Ein derartiger Staubsauger ist aus der GB 2 250 427 A bekannt. Das Unterteil bildet einen Schmutzsammelbehälter aus, der mittels des im Oberteil angeordneten Saugaggregates mit einem Unterdruck beaufschlagt werden kann, so daß Schmutz in den Sammelbehälter eingesaugt werden kann. Zum Entleeren des Sammelbehälters ist es erforderlich, das Oberteil vom Unterteil zu entfernen, während zum Betrieb des Staubsaugers eine möglichst luftdichte Verbindung des Oberteils mit dem Unterteil gewährleistet sein muß. Das Oberteil kann mittels des Griffbügels mit dem Unterteil verriegelt werden. Hierzu ist es bei dem bekannten Staubsauger erforderlich, den Griffbügel in seine vertikale Stellung zu verschwenken. Der Griffbügel weist an den Innenseiten der Schenkel jeweils einen Zapfen auf und an den Außenseiten des Oberteils ist jeweils eine Zapfenaufnahme angeordnet, in die der Zapfen bei vertikaler Ausrichtung des Griffbügels einrastet. In dieser Stellung hintergreift der Zapfen die zugeordnete Aufnahme, so daß das Oberteil mit dem Unterteil verriegelt ist. Der Zapfen dient somit zum einen der Verriegelung des Oberteils mit dem Unterteil, zum anderen wird der Griffbügel mit Hilfe des Zapfens in seiner vertikalen Stellung festgelegt. Die Festlegung des Griffbügels vereinfacht die Handhabung des Staubsaugers. Der Griffbügel erfährt somit eine beachtliche mechanische Belastung, so daß die Gefahr einer Beschädigung und damit einer Beschränkung der Lebensdauer des Staubsaugers besteht.Such a vacuum cleaner is known from GB 2 250 427 A. The lower part forms a dirt collecting container which can be subjected to a negative pressure by means of the suction unit arranged in the upper part, so that dirt can be sucked into the collecting container. To empty the collecting container, it is necessary to remove the upper part from the lower part, while an airtight connection of the upper part with the lower part must be ensured for the operation of the vacuum cleaner. The upper part can be locked to the lower part using the handle. For this purpose, it is necessary in the known vacuum cleaner to pivot the handle bar into its vertical position. The handle bar has a pin on the inner sides of the legs and a pin receptacle is arranged on the outer sides of the upper part, into which the pin engages when the handle bar is aligned vertically. In this position, the pin engages behind the associated receptacle, so that the upper part is locked to the lower part. The pin thus serves on the one hand to lock the upper part with the lower part, and on the other hand the handle is fixed in its vertical position with the aid of the pin. The definition of the handle bar simplifies handling of the vacuum cleaner. The handlebar is thus subjected to a considerable mechanical load, so that there is a risk of damage and thus a limitation of the lifespan of the vacuum cleaner.
Aufgabe der vorliegenden Erfindung ist es, einen Staubsauger der eingangs genannten Art derart weiterzubilden, daß die Gefahr einer Beschädigung des Staubsaugers bei dessen Handhabung verringert werden kann.The object of the present invention is to develop a vacuum cleaner of the type mentioned at the outset in such a way that the risk of damage to the vacuum cleaner when it is being handled can be reduced.
Diese Aufgabe wird bei einem Staubsauger der gattungsgemäßen Art erfindungsgemäß dadurch gelöst, daß im Abstand zu den Verriegelungselementen zumindest an einem Schenkel und am Staubsaugergehäuse Rastelemente angeordnet sind, die durch Verschwenken des Griffbügels in seine vertikale Stellung miteinander in Eingriff bringbar sind.This object is achieved according to the invention in a vacuum cleaner of the generic type in that latching elements are arranged at a distance from the locking elements at least on one leg and on the vacuum cleaner housing and can be brought into engagement with one another by pivoting the handle bar into its vertical position.
Bei dem erfindungsgemäßen Staubsauger sind die Elemente zur Verriegelung des Oberteils mit dem Unterteil von den Elementen zur Festlegung des Griffbügels in seiner vertikalen Stellung entkoppelt. Zur Festlegung des Griffbügels in seiner vertikalen Stellung kommen miteinander zusammenwirkende Rastelemente zu Einsatz, und zusätzlich umfaßt der Staubsauger Verriegelungselemente, mit denen das Oberteil mit dem Unterteil verriegelt werden kann. Dies ermöglicht es, die Verriegelungs- und Rastelemente in konstruktiv unterschiedlicher Weise auszugestalten und für ihre jeweilige Funktion zu optimieren. Die Gefahr einer Beschädigung des Staubsaugers bei seiner Handhabung wird dadurch erheblich vermindert.In the vacuum cleaner according to the invention, the elements for locking the upper part with the lower part are decoupled from the elements for fixing the handle in its vertical position. Interacting locking elements are used to fix the handle in its vertical position, and in addition the vacuum cleaner comprises locking elements with which the upper part can be locked with the lower part. This makes it possible to design the locking and latching elements in different designs and to optimize them for their respective functions. This significantly reduces the risk of damage to the vacuum cleaner during its handling.
Bei einer bevorzugten Ausführungsform der Erfindung ist das mindestens eine am Staubsaugergehäuse angeordnete Rastelement an eine formelastische Außenwand angeformt. Dies hat den Vorteil, daß die Formelastizität der Außenwand zur Ausbildung einer elastischen Rückstellkraft herangezogen werden kann, gegen deren Wirkung die an dem mindestens einen Schenkel und am Staubsaugergehäuse angeordneten Rastelemente miteinander in Eingriff gebracht werden können. Die Anformung des Rastelementes an eine Außenwand des Staubsaugergehäuses ermöglicht es außerdem, den Staubsauger kostengünstig herzustellen, wobei das einstückig mit der Außenwand verbundene Rastelement auch hohen mechanischen Belastungen Stand hält.In a preferred embodiment of the invention, the at least one latching element arranged on the vacuum cleaner housing is a resilient element Molded outer wall. This has the advantage that the structural elasticity of the outer wall can be used to form an elastic restoring force, against the action of which the locking elements arranged on the at least one leg and on the vacuum cleaner housing can be brought into engagement with one another. The shaping of the locking element on an outer wall of the vacuum cleaner housing also makes it possible to produce the vacuum cleaner inexpensively, the locking element connected in one piece to the outer wall also being able to withstand high mechanical loads.
Vorzugsweise ist das mindestens eine am Staubsaugergehäuse angeordnete Rastelement an einen dem Unterteil zugewandten Randabschnitt einer Außenwand des Oberteiles angeformt. Die Außenwand ist in einem derartigen Randabschnitt mit verhältnismäßig geringem Kraftaufwand elastisch verformbar, ohne daß eine Beschädigung der Außenwand zu befürchten ist. Somit kann die Formelastizität des Randschnittes der Außenwand zur Sicherstellung einer mechanisch belastbaren Festlegung des Griffbügels in seiner vertikalen Stellung herangezogen werden.The at least one latching element arranged on the vacuum cleaner housing is preferably molded onto an edge section of an outer wall of the upper part facing the lower part. The outer wall is elastically deformable in such an edge section with relatively little effort, without fear of damage to the outer wall. Thus, the formula elasticity of the edge cut of the outer wall can be used to ensure a mechanically resilient fixing of the handle in its vertical position.
Bevorzugt ist das an dem mindestens einen Schenkel angeordnete Rastelement an einen formelastischen Wandabschnitt des Schenkels angeformt. Das Rastelement kann bei einer derartigen Ausgestaltung besonders stabil ausgebildet sein, ohne daß es erforderlich ist, daß das Rastelement verformbar ist, die zur Herstellung einer Rastverbindung erforderliche Verformbarkeit wird vielmehr vom Randabschnitt des Schenkels gewährleistet, der entsprechend formelastisch ausgebildet ist. Von besonderem Vorteil ist es, wenn die beiden Schenkel zumindest in Höhe der Rastelemente doppelwandig ausgestaltet sind und eine bei vertikaler Ausrichtung des Griffbügels dem Staubsaugergehäuse zugewandte Innenwand und eine dem Staubsaugergehäuse abgewandte Außenwand aufweisen, wobei die Innenwand zumindest ein Rastelement trägt und im Bereich des Rastelementes formelastisch ausgebildet ist.The latching element arranged on the at least one leg is preferably molded onto a resilient wall section of the leg. In such a configuration, the latching element can be designed to be particularly stable without it being necessary for the latching element to be deformable, the deformability required for producing a latching connection is rather ensured by the edge section of the leg, which is designed to be correspondingly elastic in shape. It is particularly advantageous if the two legs are double-walled at least at the height of the latching elements and have an inner wall facing the vacuum cleaner housing when the handle is vertically oriented and an outer wall facing away from the vacuum cleaner housing, the inner wall carrying at least one latching element and being resilient in the area of the latching element is trained.
Vorzugsweise ist die Innenwand über Verbindungsstege mit der Außenwand verbunden, wobei die Rastelemente des jeweiligen Schenkels an einen freistehenden Randabschnitt der Innenwand des Schenkels angeformt sind.The inner wall is preferably connected to the outer wall via connecting webs, the latching elements of the respective leg being molded onto a free-standing edge section of the inner wall of the leg.
Zur Ausgestaltung der Verriegelungselemente wurden bisher keine näheren Angaben gemacht. Als vorteilhaft hat es sich erwiesen, wenn die Verriegelungselemente als bogenförmige, konzentrisch zur Schwenkachse ausgerichtete und einander zumindest bei vertikaler Ausrichtung des Griffbügels hintergreifende Wandelemente ausgestaltet sind, die außenseitig am Oberteil sowie innenseitig an den Schenkeln angeordnet sind. Vorzugsweise sind die Wandelemente einstückig mit dem Oberteil bzw. dem jeweiligen Schenkel verbunden.No details have so far been given on the design of the locking elements. It has proven to be advantageous if the locking elements are designed as arcuate wall elements which are aligned concentrically with the pivot axis and engage behind one another at least when the handle is vertically aligned, which are arranged on the outside on the upper part and on the inside on the legs. The wall elements are preferably connected in one piece to the upper part or the respective leg.
Bei einer besonders bevorzugten Ausgestaltung des erfindungsgemäßen Staubsaugers hintergreifen sich die Wandelemente über einen Schwenkbereich des Griffbügels von mindestens 90°. Dies hat den Vorteil, daß das Oberteil mit dem Unterteil auch dann noch verriegelt ist, wenn der Griffbügel nicht exakt seine vertikal ausgerichtete Stellung einnimmt. Von besonderem Vorteil ist es, wenn sich die Wandelemente über einen Schwenkbereich von mindestens 135° hintergreifen, insbesondere über einen Schwenkbereich von etwa 160° bis 180°. So wird die Gefahr gemindert, daß ein Benutzer irrtümlich durch Auslenken des Griffbügels aus dessen vertikaler Stellung die Verriegelung des Oberteils mit dem Unterteil und damit deren strömungsdichte Verbindung löst. Zur Entriegelung ist es vielmehr erforderlich, den Griffbügel bewußt über einen verhältnismäßig großen Schwenkbereich zu verschwenken, vorzugsweise ausgehend von einer vertikalen Ausrichtung um mindestens 90°.In a particularly preferred embodiment of the vacuum cleaner according to the invention, the wall elements engage behind a pivoting range of the handle bar of at least 90 °. This has the advantage that the upper part is still locked to the lower part even if the handle bar is not exactly in its vertically oriented position. It is particularly advantageous if the wall elements engage behind a swivel range of at least 135 °, in particular over a swivel range of approximately 160 ° to 180 °. This reduces the risk that a user erroneously releases the locking of the upper part with the lower part and thus their flow-tight connection by deflecting the handle from its vertical position. Rather, for unlocking, it is necessary to consciously pivot the handlebar over a relatively large pivoting range, preferably starting from a vertical orientation of at least 90 °.
Bevorzugt ist die Verriegelung des Oberteils mit dem Unterteil ausgehend von einer vertikalen Ausrichtung des Griffbügels nur durch Verschwenken des Griffbügels in eine erste Schwenkrichtung aufhebbar. Vom Benutzer muß bei einer derartigen Ausgestaltung des erfindungsgemäßen Staubsaugers der Griffbügel bewußt in eine bestimmte Schwenkrichtung verschwenkt werden, um die Verriegelung zwischen dem Oberteil und dem Unterteil aufzuheben. Die Gefahr einer irrtümlichen Entriegelung wird dadurch vermindert.Preferably, the locking of the upper part with the lower part, starting from a vertical orientation of the handle, can only be canceled by pivoting the handle in a first pivoting direction. With such a configuration of the vacuum cleaner according to the invention, the handlebar must be pivoted deliberately by the user in a certain pivoting direction in order to release the locking between the upper part and the lower part. This reduces the risk of inadvertent unlocking.
Als günstig hat es sich erwiesen, wenn an einem der einander hintergreifenden Verriegelungselemente ein Anschlag angeordnet ist, der zur Begrenzung der Schwenkbewegung des Griffbügels an das andere Verriegelungselement anlegbar ist. In einer ersten Schwenkrichtung kann somit der Griffbügel ausgehend von seiner vertikalen Ausrichtung so weit verschwenkt werden, daß sich die einander zugeordneten Verriegelungselemente freigeben und demzufolge das Oberteil vom Unterteil entfernt werden kann, während in einer zweiten Schwenkrichtung der Griffbügel nur so weit verschwenkt werden kann, bis der an einem Verriegelungselement angeordnete Anschlag am zugeordneten an- deren Verriegelungselement anschlägt. In dieser Stellung bleibt die einander hintergreifende Anordnung der einander zugeordneten Verriegelungselemente bestehen, so daß das Oberteil zuverlässig mit dem Unterteil verriegelt ist.It has proven to be advantageous if a stop is arranged on one of the locking elements engaging behind one another, which stop can be applied to the other locking element in order to limit the pivoting movement of the handle. In a first pivoting direction, the handle bar can thus be pivoted so far starting from its vertical orientation that the mutually assigned locking elements can be released and consequently the upper part can be removed from the lower part, while in a second pivoting direction the handle bar can only be pivoted so far until the stop arranged on a locking element on the associated whose locking element strikes. In this position, the mutually engaging arrangement of the mutually associated locking elements remains, so that the upper part is reliably locked to the lower part.
Eine mechanisch besonders belastbare Ausgestaltung des erfindungsgemäßen Staubsaugers kann dadurch erzielt werden, daß das jeweils an einem Schenkel angeordnete Wandelement als Ringwand ausgestaltet ist, die konzentrisch zur Drehachse ausgerichtet ist und eine Aussparung aufweist zum Durchtritt des am Oberteil angeordneten Vorsprunges. Wird das Oberteil auf das Unterteil aufgesetzt, so wird zuvor der am Unterteil verschwenkbar gehaltene Griffbügel in eine derartige Stellung verschwenkt, daß die Aussparung der an den Schenkeln angeordneten Ringwand vertikal nach oben ausgerichtet ist, so daß das Oberteil auf das Unterteil aufgesetzt werden kann, wobei das Wandelement des Oberteiles in die Aussparung der Ringwand eintaucht. Anschließend kann der Griffbügel in seine vertikale Stellung verschwenkt werden, wobei dann die Ringwand das Wandelement des Oberteiles übergreift und somit das Oberteil mit einer Spannkraft in Richtung auf das Unterteil beaufschlagen kann.A mechanically particularly resilient embodiment of the vacuum cleaner according to the invention can be achieved in that the wall element arranged on each leg is designed as an annular wall which is aligned concentrically with the axis of rotation and has a recess for the passage of the projection arranged on the upper part. If the upper part is placed on the lower part, the handlebar, which is pivotably held on the lower part, is pivoted into a position such that the recess of the ring wall arranged on the legs is oriented vertically upward, so that the upper part can be placed on the lower part, whereby the wall element of the upper part is immersed in the recess of the ring wall. The handle bar can then be pivoted into its vertical position, in which case the ring wall engages over the wall element of the upper part and can thus act on the upper part with a clamping force in the direction of the lower part.
Günstig ist es hierbei, wenn die Ringwand konzentrisch zu einer Lagerbuchse des jeweiligen Schenkels angeordnet ist, die einen am Unterteil gehaltenen Lagerzapfen umgibt. Beim Aufsetzen des Oberteiles auf das Unterteil kann somit das am Oberteil angeordnete Wandelement in den Ringraum zwischen die Ringwand und die Lagerbuchse eintauchen.It is advantageous here if the ring wall is arranged concentrically with a bearing bush of the respective leg, which surrounds a bearing journal held on the lower part. When the upper part is placed on the lower part, the wall element arranged on the upper part can thus dip into the annular space between the annular wall and the bearing bush.
Als besonders vorteilhaft hat es sich erwiesen, wenn die Ringwand und die Lagerbuchse einstückig miteinander verbunden sind, denn dies ermöglicht eine kostengünstige Herstellbarkeit des Staubsaugers. It has proven to be particularly advantageous if the ring wall and the bearing bush are connected to one another in one piece, because this enables the vacuum cleaner to be manufactured cost-effectively.
Vorzugsweise ist die Ringwand über mindestens eine Verbindungswand mit der Lagerbuchse verbunden. Die Verbindungswand ist bevorzugt bezogen auf die Schwenkachse radial ausgerichtet. Die Verbindungswand kann einen Anschlag zur Begrenzung der Schwenkbewegung des Griffbügels ausbilden.The ring wall is preferably connected to the bearing bush via at least one connecting wall. The connecting wall is preferably oriented radially with respect to the pivot axis. The connecting wall can form a stop to limit the pivoting movement of the handle bar.
Das am Oberteil angeordnete Wandelement ist vorzugsweise als leistenartiger Vorsprung ausgestaltet.The wall element arranged on the upper part is preferably designed as a strip-like projection.
Die nachfolgende Beschreibung einer bevorzugten Ausführungsform der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:The following description of a preferred embodiment of the invention serves in conjunction with the drawing for a more detailed explanation. Show it:
Figur 1 : eine schaubildliche Darstellung eines erfindungsgemäßen Staubsaugers;Figure 1 is a diagrammatic representation of a vacuum cleaner according to the invention;
Figur 2: eine Teilschnittansicht längs der Linie 2-2 in Figur 1;Figure 2 is a partial sectional view taken along line 2-2 in Figure 1;
Figur 3: eine Schnittansicht längs der Linie 3-3 in Figur 2 undFigure 3 is a sectional view taken along line 3-3 in Figure 2 and
Figur 4: eine Schnittansicht längs der Linie 4-4 in Figur 3.Figure 4 is a sectional view taken along line 4-4 in Figure 3.
In der Zeichnung ist schematisch ein insgesamt mit dem Bezugszeichen 10 belegter Staubsauger dargestellt, der im wesentlichen zylinderförmig ausgestaltet ist und ein Staubsaugergehäuse 11 mit einem Unterteil 12 sowie einem auf dieses aufsetzbaren Oberteil 14 umfaßt. Das Unterteil 12 bildet einen Schmutzsammelbehälter 16 aus, in den über einen Saugstutzen 17 Schmutz eingesaugt werden kann. An den Saugstutzen 17 ist in üblicher Weise ein an sich bekannter und deshalb in der Zeichnung nicht dargestellter Saugschlauch anschließbar, der an seinem freien Ende eine Saugdüse trägt.In the drawing, there is schematically shown a vacuum cleaner, designated as a whole by reference number 10, which is essentially cylindrical and comprises a vacuum cleaner housing 11 with a lower part 12 and an upper part 14 which can be placed thereon. The lower part 12 forms a dirt collecting container 16, into which dirt is collected via a suction nozzle 17 can be sucked in. A suction hose known per se and therefore not shown in the drawing can be connected to the suction nozzle 17 in a conventional manner and carries a suction nozzle at its free end.
Das Unterteil 12 wird vom Oberteil 14 überdeckt, das in bekannter Weise ein Saugaggregat mit einer Saugturbine und einem Elektromotor aufnimmt. Derartige Saugaggregate sind dem Fachmann bekannt. Mittels des Saugaggregates kann der Schmutzsammelbehälter 16 mit Unterdruck beaufschlagt werden.The lower part 12 is covered by the upper part 14, which receives a suction unit with a suction turbine and an electric motor in a known manner. Suction units of this type are known to the person skilled in the art. The dirt collecting container 16 can be subjected to negative pressure by means of the suction unit.
In seinem oberen Randbereich trägt das Unterteil 12 einen außenseitig an dieses angelenkten Griffbügel 20, der um eine Schwenkachse 22 verschwenkbar am Unterteil 12 gelagert ist. Er ist im wesentlichen U-förmig ausgestaltet und umfaßt einen parallel zur Schwenkachse 20 verlaufenden Steg, der einen Griff 24 ausbildet, sowie endseitig vom Griff 24 abstehende Schenkel 25, 26, die identisch ausgestaltet sind und endseitig in einander diametral gegenüberliegenden Bereichen des Unterteiles 12 an diesen angelenkt sind.In its upper edge region, the lower part 12 has a handle bracket 20 articulated on the outside thereof, which is mounted on the lower part 12 so as to be pivotable about a pivot axis 22. It is essentially U-shaped and comprises a web running parallel to the pivot axis 20, which forms a handle 24, and legs 25, 26 projecting from the end of the handle 24, which are of identical design and end in diametrically opposite regions of the lower part 12 these are articulated.
Wie insbesondere aus den Figuren 2 und 3 deutlich wird, sind die Schenkel 25 und 26 jeweils doppelwandig ausgebildet und umfassen eine Innenwand 28 und eine im wesentlichen parallel zu dieser verlaufende Außenwand 29. Bei vertikaler Ausrichtung des Griffbügels 20, wie er in Figur 1 dargestellt ist, ist die Innenwand 28 dem Oberteil 14 zugewandt und die Außenwand 29 ist dem Oberteil 14 abgewandt. Die Innenwand 28 ist einstückig mit der Außenwand 29 verbunden, und zwar verlaufen zwischen der Innenwand 28 und der Aus- senwand 29 mehrere, im Abstand zueinander angeordnete Verbindungsstege 30, die dem Griffbügel 20 eine mechanisch stark belastbare Ausgestaltung verleihen. As is particularly clear from FIGS. 2 and 3, the legs 25 and 26 are each double-walled and comprise an inner wall 28 and an outer wall 29 that runs essentially parallel to this. With the handle 20 vertically aligned, as shown in FIG. 1 , The inner wall 28 faces the upper part 14 and the outer wall 29 faces away from the upper part 14. The inner wall 28 is connected in one piece to the outer wall 29, namely that a plurality of connecting webs 30 spaced apart from one another run between the inner wall 28 and the outer wall 29, which give the handle bar 20 a mechanically highly resilient design.
Das Oberteil 14 weist einen Deckel 32 auf mit einer zylindermantelförmigen Außenwand 33, die in einem dem Unterteil 12 zugewandten Randabschnitt 34 jeweils einem Schenkel 25 bzw. 26 zugeordnet zwei nach außen weisende Rippen 36, 37 trägt, die zwischen sich eine Rastaufnahme 38 ausbilden und einstückig mit der Außenwand 33 verbunden sind. In die Rastaufnahme 38 taucht bei vertikale Ausrichtung des Griffbügels 20 eine an die Innenwand 28 des jeweiligen Schenkels 25 bzw. 26 angeformte, rippenförmige Rastnase 40 ein. Die Rastaufnahme 38 und die Rastnase 40 bilden somit Rastelemente aus, die miteinander in Eingriff bringbar sind, indem der Griffbügel 20 in seine vertikale Stellung verschwenkt wird. Mittels der Rastaufnahme 38 und der Rastnase 40, die jeweils einem Schenkel 25 bzw. 26 zugeordnet an einander diametral gegenüberliegenden Seiten des Staubsaugers 10 angeordnet sind, wird der Griffbügel 20 zuverlässig in seiner vertikalen Stellung gehalten.The upper part 14 has a cover 32 with a cylindrical jacket-shaped outer wall 33 which, in an edge section 34 facing the lower part 12, each has a leg 25 or 26 associated with two outwardly pointing ribs 36, 37, which form a latching receptacle 38 between them and in one piece are connected to the outer wall 33. When the handle bar 20 is vertically aligned, a rib-shaped locking lug 40 is formed on the inner wall 28 of the respective leg 25 or 26. The latching receptacle 38 and the latching lug 40 thus form latching elements which can be brought into engagement with one another by pivoting the handle bar 20 into its vertical position. The handle bar 20 is reliably held in its vertical position by means of the latching receptacle 38 and the latching lug 40, each of which is assigned to a leg 25 or 26 and is arranged on diametrically opposite sides of the vacuum cleaner 10.
Die Außenwand 33 des Deckels 32 ist ebenso wie die Innenwand 28 der Schenkel 25 und 26 formelastisch ausgebildet. Beim Verschwenken des Griffbügels 20 in seine vertikale Stellung kann daher der der Rastaufnahme 38 benachbarte Bereich der Außenwand 33 bezogen auf die Zylinderachse 42 des Staubsaugers 10 radial nach innen verformt werden, und die Innenwand 28 kann radial nach außen, nämlich in Richtung auf die Außenwand 29 verformt werden, um die Rastaufnahme 38 und die Rastnase 40 miteinander in Eingriff zu bringen. Zusätzliche Federelemente zur Sicherstellung einer Rastverbindung sind somit nicht erforderlich und die Rippen 36 und 37 können ebenso wie die Rastnase 40 formstabil ausgestaltet sein. Zur Lagerung des Griffbügels 20 am Unterteil 12 weisen die Schenkel 25 und 26 an ihrem freien Ende jeweils eine Lagerbuchse 45 auf, die an einem am Unterteil 12 festgelegten Lagerzapfen 46 gleitend anliegt. Die Lagerbuchse 45 ist über radial zur Schwenkachse 22 verlaufende Verbindungswände 48 mit einem Wandelement in Form einer Ringwand 50 einstückig verbunden, die die Lagerbuchse 45 in Umfangsrichtung umgibt und eine Aussparung 52 aufweist. Letztere bildet einen Zugang zu dem Ringraum zwischen der Lagerbuchse 45 und der Ringwand 50. Im Bereich der Aussparung 52 ist zwischen der Ringwand 50 und der Lagerbuchse 45 radial nach innen versetzt eine kreisbogenförmige Stützwand 54 angeordnet, die einstückig mit der Lagerbuchse 45 und der Ringwand 50 verbunden ist.The outer wall 33 of the cover 32, like the inner wall 28 of the legs 25 and 26, is designed to be dimensionally elastic. When the handle bar 20 is pivoted into its vertical position, the region of the outer wall 33 which is adjacent to the latching receptacle 38 can therefore be deformed radially inward with respect to the cylinder axis 42 of the vacuum cleaner 10, and the inner wall 28 can be radially outward, namely in the direction of the outer wall 29 are deformed to bring the locking receptacle 38 and the locking lug 40 into engagement with one another. Additional spring elements to ensure a latching connection are therefore not required and the ribs 36 and 37, like the latching lug 40, can be designed to be dimensionally stable. To mount the handle bar 20 on the lower part 12, the legs 25 and 26 each have at their free end a bearing bush 45 which slidably abuts a bearing pin 46 fixed on the lower part 12. The bearing bush 45 is integrally connected to a wall element in the form of an annular wall 50, which extends radially to the pivot axis 22, and surrounds the bearing bush 45 in the circumferential direction and has a recess 52. The latter forms an access to the annular space between the bearing bush 45 and the ring wall 50. In the region of the recess 52, an arc-shaped support wall 54 is arranged between the ring wall 50 and the bearing bush 45, offset radially inwards, which is integral with the bearing bush 45 and the ring wall 50 connected is.
Jeweils einem Lagerzapfen 46 zugeordnet weist das Oberteil 14 im Abstand zur Schwenkachse 22 unterhalb der Rastaufnahme 38 ein Wandelement in Form eines leistenförmigen Vorsprungs 56 auf, der bezogen auf die Schwenkachse 22 kreisbogenförmig gekrümmt ist und bezogen auf die Zylinderachse 42 radial nach außen vom Oberteil 14 absteht.Associated with a journal 46, the upper part 14 has a wall element in the form of a strip-shaped projection 56 at a distance from the pivot axis 22 below the latching receptacle 38, said projection being curved in a circular arc with respect to the pivot axis 22 and projecting radially outward from the upper part 14 with respect to the cylinder axis 42 ,
Wie insbesondere aus Figur 4 deutlich wird, wird der leistenförmige Vorsprung 56 des Oberteils 14 bei vertikal ausgerichtetem Griffbügel 20 von der Ringwand 50 übergriffen, die flächig an der Oberseite des leistenförmigen Vorsprungs 56 anliegt. Dies hat zur Folge, daß bei vertikal ausgerichtetem Griffbügel 20 das Oberteil 14 nicht vom Unterteil 12 getrennt werden kann, die Ringwand 50 und der leistenförmige Vorsprung 56 bilden vielmehr einander hintergreifende Verriegelungselemente, mit deren Hilfe das Oberteil 14 mit dem Unterteil 12 verriegelt ist. Soll das Oberteil 14 vom Unterteil 12 getrennt werden, beispielsweise um den Schmutzsammelbehälter 16 entleeren zu können, so ist es hierzu erforderlich, den Griffbügel 20 soweit um die Schwenkachse 22 zu verschwenken, daß die Aussparung 52 der Ringwand 50 in Höhe des leistenartigen Vorsprunges 56 angeordnet ist. Bei dieser Ausrichtung des Griffbügels 20 kann das Oberteil 14 vom Unterteil 12 angehoben werden, wobei dann der leistenartige Vorsprung 56 durch die Aussparung 52 hindurchtritt. Umgekehrt kann das Oberteil 14 bei dieser Ausrichtung des Griffbügels 20 auch auf das Unterteil 12 aufgesetzt werden, wobei dann der leistenartige Vorsprung 56 die Aussparung 52 passiert und an die radial außenliegende Seite der Stützwand 54 angelegt werden kann. Anschließend kann der Griffbügel 20 verschwenkt werden, wobei dann die Ringwand 50 den leistenartigen Vorsprung 56 hintergreift und folglich das Oberteil 14 mit dem Unterteil 12 verriegelt ist. Die fluchtende Ausrichtung der Aussparung 52 zum leistenartigen Vorsprung 56 definiert somit eine Entriegelungsstellung. Diese wird dem Benutzer des Staubsaugers 10 dadurch vorgegeben, daß eine im wesentlichen tangential zur Lagerbuchse 45 verlaufende Zwischenwand 58, über die die Stützwand 54 mit der Ringwand 50 einstückig verbunden ist, am leistenartigen Vorsprung 56 anliegt. Wird der Griffbügel 20 ausgehend von seiner vertikalen Ausrichtung in die der Entriegelungsstellung abgewandte Richtung verschwenkt, so stößt die radial ausgerichtete Verbindungswand 48 am leistenartigen Vorsprung 56 an, wobei die Verriegelung des Oberteils 14 mit dem Unterteil 12 aufrechterhalten wird. Die radiale Verbindungswand 48 bildet somit ebenso wie die Zwischenwand 58 einen die Schwenkbewegung des Griffbügels 20 begrenzenden Anschlag aus. As is particularly clear from FIG. 4, the strip-shaped projection 56 of the upper part 14 is overlapped by the ring wall 50 when the handle bracket 20 is aligned vertically, which lies flat against the top of the strip-shaped projection 56. As a result, the upper part 14 cannot be separated from the lower part 12 when the handle 20 is aligned vertically; the ring wall 50 and the strip-shaped projection 56 form interlocking locking elements, with the aid of which the upper part 14 is locked to the lower part 12. If the upper part 14 is to be separated from the lower part 12, for example in order to be able to empty the dirt collecting container 16, then it is necessary to pivot the handle bar 20 about the pivot axis 22 to such an extent that the recess 52 of the ring wall 50 is arranged at the level of the strip-like projection 56 is. With this orientation of the handle bar 20, the upper part 14 can be raised from the lower part 12, the strip-like projection 56 then passing through the cutout 52. Conversely, with this orientation of the handle 20, the upper part 14 can also be placed on the lower part 12, in which case the strip-like projection 56 passes the recess 52 and can be placed on the radially outer side of the support wall 54. The handle bar 20 can then be pivoted, the ring wall 50 then engaging behind the strip-like projection 56 and consequently the upper part 14 being locked with the lower part 12. The aligned alignment of the recess 52 with the strip-like projection 56 thus defines an unlocking position. This is given to the user of the vacuum cleaner 10 by the fact that an intermediate wall 58 which runs essentially tangentially to the bearing bush 45 and via which the support wall 54 is connected in one piece to the ring wall 50 bears against the strip-like projection 56. If the handle bar 20 is pivoted starting from its vertical orientation in the direction facing away from the unlocking position, the radially aligned connecting wall 48 abuts the strip-like projection 56, the upper part 14 being held in place with the lower part 12. The radial connecting wall 48 thus, like the intermediate wall 58, forms a stop limiting the pivoting movement of the handle bracket 20.

Claims

P A T E N T A N S P R U C H E P A T E N T A N S P R U C H E
Staubsauger mit einem Staubsaugergehäuse, das ein einen Schmutzsammelbehälter aufweisendes Unterteil und ein auf das Unterteil aufsetzbares, ein Saugaggregat aufnehmendes Oberteil umfaßt, und mit einem um eine Schwenkachse verschwenkbar am Unterteil gelagerten Griffbügel, der U-förmig ausgestaltet ist und einen Griff aufweist sowie zwei vom Griff endseitig abstehende Schenkel, wobei an den Schenkeln und am Oberteil Verriegelungselemente angeordnet sind, die einander bei vertikaler Ausrichtung des Griffbügels hintergreifen, dadurch gekennzeichnet, daß im Abstand zu den Verriegelungselementen (50, 56) zumindest an einem Schenkel (25, 26) und am Staubsaugergehäuse (11) Rastelemente (38, 40) angeordnet sind, die durch Verschwenken des Griffbügels (20) in seine vertikale Stellung miteinander in Eingriff bringbar sind.Vacuum cleaner with a vacuum cleaner housing, which comprises a lower part having a dirt collecting container and an upper part which can be placed on the lower part and accommodates a suction unit, and with a handle bracket which is pivotable about a pivot axis and which is U-shaped and has a handle and two of the handle Legs protruding at the ends, locking elements being arranged on the legs and on the upper part, which engage behind one another when the handle is vertically aligned, characterized in that at a distance from the locking elements (50, 56) at least on one leg (25, 26) and on the vacuum cleaner housing (11) locking elements (38, 40) are arranged which can be brought into engagement with one another by pivoting the handle bar (20) into its vertical position.
2. Staubsauger nach Anspruch 1, dadurch gekennzeichnet, daß das mindestens eine am Staubsaugergehäuse (11) angeordnete Rastelement (38) an eine formelastische Außenwand (33) angeformt ist.2. Vacuum cleaner according to claim 1, characterized in that the at least one on the vacuum cleaner housing (11) arranged locking element (38) is integrally formed on a resilient outer wall (33).
3. Staubsauger nach Anspruch 2, dadurch gekennzeichnet, daß das mindestens eine am Staubsaugergehäuse (11)) angeordnete Rastelement (38) an einen dem Unterteil (12) zugewandten Randabschnitt (34) einer Außenwand (33) des Oberteils (14) angeformt ist. 3. Vacuum cleaner according to claim 2, characterized in that the at least one on the vacuum cleaner housing (11)) arranged locking element (38) on one of the lower part (12) facing edge portion (34) of an outer wall (33) of the upper part (14) is formed.
4. Staubsauger nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß das an dem mindestens einen Schenkel (25, 26) angeordnete Rastelement (40) an einen formelastischen Wandabschnitt (28) des Schenkels (25, 26) angeformt ist.4. Vacuum cleaner according to claim 1, 2 or 3, characterized in that the at least one leg (25, 26) arranged latching element (40) on a resilient wall portion (28) of the leg (25, 26) is integrally formed.
5. Staubsauger nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die beiden Schenkel (25, 26) zumindest in Höhe der Rastelemente (40) doppelwandig ausgestaltet sind und eine bei vertikaler Ausrichtung des Griffbügels (20) dem Staubsaugergehäuse (11) zugewandte Innenwand (28) und eine dem Staubsaugergehäuse (11) abgewandte Außenwand (29) aufweisen, wobei die Innenwand (28) ein Rastelement (40) trägt und zumindest im Bereich des Rastelementes (40) formelastisch ausgestaltet ist.5. Vacuum cleaner according to one of the preceding claims, characterized in that the two legs (25, 26) are double-walled at least at the height of the latching elements (40) and an inner wall (11) facing the vacuum cleaner housing (11) when the handle bar (20) is aligned vertically. 28) and have an outer wall (29) facing away from the vacuum cleaner housing (11), the inner wall (28) carrying a latching element (40) and at least in the area of the latching element (40) being designed to be dimensionally elastic.
Staubsauger nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die Verriegelungselemente als bogenförmige, konzentrisch zur Schwenkachse (22) ausgerichtete und einander zumindest bei vertikaler Ausrichtung des Griffbügels (20) hintergreifende Wandelemente (50, 56) ausgestaltet sind, die außenseitig am Oberteil (14) sowie an den dem Oberteil (14) zugewandten Innenseiten der Schenkel (25, 26) angeordnet sind. Vacuum cleaner according to one of the preceding claims, characterized in that the locking elements are designed as arcuate wall elements (50, 56) which are aligned concentrically to the pivot axis (22) and engage behind one another at least when the handle bar (20) is aligned vertically and which are on the outside on the upper part (14 ) and on the inside of the legs (25, 26) facing the upper part (14).
Staubsauger nach Anspruch 6, dadurch gekennzeichnet, daß sich die Wandelemente (50, 56) über einen Schwenkbereich des Griffbügels (20) von mindestens 90° hintergreifen.Vacuum cleaner according to claim 6, characterized in that the wall elements (50, 56) reach behind at least 90 ° over a pivoting range of the handle bar (20).
8. Staubsauger nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die Verriegelung des Oberteils (14) mit dem Unterteil (12) ausgehend von einer vertikalen Ausrichtung des Griffbügels (20) nur durch Verschwenken des Griffbügels (20) in eine erste Schwenkrichtung aufhebbar ist.8. Vacuum cleaner according to one of the preceding claims, characterized in that the locking of the upper part (14) with the lower part (12) starting from a vertical orientation of the handle bar (20) can only be canceled by pivoting the handle bar (20) in a first pivoting direction ,
Staubsauger nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß an einem der einander hintergreifenden Verriegelungselemente (50) zumindest ein Anschlag (48, 58) angeordnet ist, der zur Begrenzung der Schwenkbewegung des Griffbügels (20) an das andere Verriegelungselement (56) anlegbar ist.Vacuum cleaner according to one of the preceding claims, characterized in that at least one stop (48, 58) is arranged on one of the interlocking locking elements (50) which can be applied to the other locking element (56) to limit the pivoting movement of the handle (20) ,
10. Staubsauger nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, daß das jeweils an einem Schenkel (25, 26) angeordnete Wandelement als Ringwand (50) ausgestaltet ist, die konzentrisch zur Drehachse (22) ausgerichtet ist und eine Aussparung (52) aufweist zum Durchtritt des zugeordneten, am Oberteil (14) angeordneten Wandelementes (56). 10. Vacuum cleaner according to one of claims 6 to 9, characterized in that the wall element arranged on each leg (25, 26) is designed as an annular wall (50) which is aligned concentrically with the axis of rotation (22) and has a recess (52) has for the passage of the associated wall element (56) arranged on the upper part (14).
11. Staubsauger nach Anspruch 10, dadurch gekennzeichnet, daß die Ringwand (50) konzentrisch zu einer Lagerbuchse (45) des jeweiligen Schenkels (24, 26) ausgerichtet ist, die einen am Unterteil (12) gehaltenen Lagerzapfen (46) umgibt.11. Vacuum cleaner according to claim 10, characterized in that the annular wall (50) is aligned concentrically with a bearing bush (45) of the respective leg (24, 26) which surrounds a bearing pin (46) held on the lower part (12).
12. Staubsauger nach Anspruch 10 oder 11, dadurch gekennzeichnet, daß die Ringwand (50) und die Lagerbuchse (45) einstückig miteinander verbunden sind.12. Vacuum cleaner according to claim 10 or 11, characterized in that the annular wall (50) and the bearing bush (45) are integrally connected to one another.
13. Staubsauger nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß die Ringwand (50) über mindestens eine Verbindungswand (48) mit der Lagerbuchse (45) verbunden ist.13. Vacuum cleaner according to claim 11 or 12, characterized in that the ring wall (50) via at least one connecting wall (48) is connected to the bearing bush (45).
14. Staubsauger nach einem der Ansprüche 6 bis 13, dadurch gekennzeichnet, daß die am Oberteil (14) angeordneten Wandelemente als leistenartige Vorsprünge (56) ausgestaltet sind. 14. Vacuum cleaner according to one of claims 6 to 13, characterized in that the wall elements arranged on the upper part (14) are designed as strip-like projections (56).
EP05715855A 2004-03-12 2005-03-09 Vacuum cleaner Active EP1722664B8 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004013063A DE102004013063B4 (en) 2004-03-12 2004-03-12 vacuum cleaner
PCT/EP2005/002461 WO2005087070A1 (en) 2004-03-12 2005-03-09 Vacuum cleaner

Publications (3)

Publication Number Publication Date
EP1722664A1 true EP1722664A1 (en) 2006-11-22
EP1722664B1 EP1722664B1 (en) 2008-07-02
EP1722664B8 EP1722664B8 (en) 2008-12-24

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ID=34895419

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05715855A Active EP1722664B8 (en) 2004-03-12 2005-03-09 Vacuum cleaner

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EP (1) EP1722664B8 (en)
AT (1) ATE399498T1 (en)
DE (2) DE102004013063B4 (en)
WO (1) WO2005087070A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009010073A1 (en) * 2009-02-11 2010-08-12 Alfred Kärcher Gmbh & Co. Kg vacuum-cleaning device
DE102010038303A1 (en) 2010-07-22 2012-01-26 Alfred Kärcher Gmbh & Co. Kg vacuum-cleaning device
CN108143349B (en) * 2016-12-05 2021-05-11 天佑电器（苏州）有限公司 Cleaning tool
DE102020113525A1 (en) 2020-05-19 2021-11-25 Alfred Kärcher SE & Co. KG Suction device
DE102020113521A1 (en) 2020-05-19 2021-11-25 Alfred Kärcher SE & Co. KG Suction device

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US3858272A (en) * 1973-02-21 1975-01-07 Beatrice Foods Co Vacuum assembly
US5086537A (en) * 1990-12-04 1992-02-11 Bissell, Inc. Compact extractor
CH688734A5 (en) * 1994-03-18 1998-02-13 Peteroa Engineering Limited Vacuum cleaner casing with detachable dust collector
ITRM20030028A1 (en) * 2003-01-24 2004-07-25 Gioel Italia 96 S R L COUPLING AND DECOUPLING SYSTEM, IN

Non-Patent Citations (1)

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Title
See references of WO2005087070A1 *

Also Published As

Publication number Publication date
WO2005087070A8 (en) 2005-12-08
WO2005087070A1 (en) 2005-09-22
ATE399498T1 (en) 2008-07-15
EP1722664B1 (en) 2008-07-02
EP1722664B8 (en) 2008-12-24
DE502005004578D1 (en) 2008-08-14
DE102004013063B4 (en) 2006-01-19
DE102004013063A1 (en) 2005-09-29

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