WO2017207071A1

WO2017207071A1 - Vacuum cleaner having operating unit for a length-adjustable tube device

Info

Publication number: WO2017207071A1
Application number: PCT/EP2016/069628
Authority: WO
Inventors: Matthias Hermann; Stephan Siegel
Original assignee: Alfred Kärcher Gmbh & Co. Kg
Priority date: 2016-05-30
Filing date: 2016-08-18
Publication date: 2017-12-07
Also published as: CN109310250A; EP3463025B1; WO2017207024A1; PL3463025T3; CN109310253A; EP3463025A1; EP3463023A1; CN109310253B

Abstract

The invention relates to a vacuum cleaner, comprising a housing (14), a vacuum assembly device (32) arranged in the housing (14), a length-adjustable tube device (16) arranged on or in the housing (14), an arched handle unit (66) connected to the housing (14) and connected to the tube device (16) and/or at least partially formed by the tube device (16), and an acting element (280) which moves in relation to the tube device (16) and via which an unlocking of the tube device (16) can be actuated for a length adjustment, characterised in that an operating unit (322) is arranged on the arched handle unit (66), which acts on the acting element (280) and via which a movement of the acting element (280) can be actuated.

Description

Vacuum cleaner with control unit for length-adjustable

tube means

The invention relates to a vacuum cleaner, comprising a housing, a suction device, which is arranged in the housing, a length-adjustable tube device, which is arranged on or in the housing, a bow-tie handle unit, which is connected to the housing and connected to the tube device and / /. or at least partially formed by the tube means, and an operative element which is movable with respect to the tube means and via which an unlocking of

Pipe device can be actuated to a length adjustment. In the non-prepublished international patent application

PCT / EP2015 / 054720 dated 6 March 2015, a vacuum cleaner is described, comprising a housing which extends between a first housing side and a second housing side in a first axis of extension, a suction unit for generating a suction flow, which is arranged in the housing a separator disposed in the housing and a tube means disposed on or in the housing and extending in a second extension axis at least approximately parallel to the first extension axis, wherein a nozzle port for a suction nozzle is disposed on the tube means and the nozzle connection is closer to the first side of the housing than to the second side of the housing, wherein the tube device is designed to be adjustable in length along the second extension axis and a distance of the nozzle connection to the first side of the housing is detectably adjustable. This document is expressly and fully incorporated by reference.

In the non-prepublished international patent application

PCT / EP2015 / 054766 dated Mar. 6, 2015 describes a separator for a vacuum cleaner comprising a pre-separator with a vacuum cleaner Receiving basket, which has a receiving space, wherein a dirt-laden suction flow is performed through the receiving space during operation of the separator. The receiving basket is associated with a lid on which at least one pin-shaped active element sits, which protrudes with the lid closed in the receiving space and which is acted upon movement of the lid relative to the receiving basket on dirt in the receiving space. This document is expressly and fully incorporated by reference. In the non-prepublished international patent application

PCT / EP2015 / 054749 dated Mar. 6, 2015 describes a length adjustable tube device for a cleaning device comprising at least a first tube, a second tube, a third tube, the first tube being longitudinally displaceable in the second tube and the second tube in the a first locking device which acts between the first tube and the second tube, wherein in a releasable locking position of the first locking means, the first tube is fixed to the second tube with respect to a longitudinal displaceability, a second locking device, which between the second Pipe and the third tube acts, wherein in a releasable locking position of the second locking means, the second tube is fixed to the third tube with respect to a Längsverschieblichkeit, and a third locking means which acts on the first tube, the second tube and the third tube wherein the third locking means comprises a releasable locking position in which the second tube is fixed to the third tube for longitudinal displacement, and has an unlocking position in which longitudinal displacement of the second tube to the third tube is enabled, the third locking means is controlled with respect to the transition from the locking position to the unlocked position by a position of the first tube relative to the second tube and / or by a force with which the third locking device acts on the second tube. This document is expressly and fully incorporated by reference. In the non-prepublished international patent application PCT / EP2015 / 054764 of 6 March 2015, a floor nozzle for a vacuum cleaner is described, comprising a bottom body to which a suction channel with a Saugkanalwandung, a Saugkanaldecke and a Saugkanalraum is arranged, the Saugkanalwandung on the suction channel cover is seated, the suction channel space is formed between the suction channel wall and the suction channel cover, the suction channel of the suction channel cover is open, and at least one suction mouth, which is provided for fluid-effective connection with a suction unit, opens into the suction channel space at the suction channel cover. At least one rib, which is positioned in the suction channel space and which has a region which projects beyond an end face of the suction channel wall via an envelope plane opposite the suction channel cover, or which lies at one end on the envelope plane, is arranged on the suction channel cover. This document is expressly and fully incorporated by reference.

The invention has for its object to provide a vacuum cleaner of the type mentioned, which can be operated in a simple manner.

This object is achieved according to the invention in the vacuum cleaner mentioned above, that an operating unit is arranged on the bow grip unit, which acts on the active element and via which a movement of the active element can be actuated.

The operating unit allows the active element to be moved in order to carry out an unlocking on the pipe device remote from the operating unit. It can thereby actuate a length adjustment of the tube device on the control unit on the bow-handle unit.

This results in a compact construction of the vacuum cleaner. The control unit can be integrated into the bow grip unit in a structurally simple manner. For example, when an operator holds the vacuum cleaner on the hoop grip unit by one hand, he can operate the operating unit via the other hand or possibly even with the holding hand to perform a length adjustment. It is thus also possible, for example, to perform a corresponding length adjustment in the suction mode.

It is expediently provided that the mechanical force is also provided by actuation of the operating unit in order to drive the movement of the active element.

It is advantageous if the active element is a slide which is movable relative to the tube device and in particular longitudinally displaceable. This results in a structurally simple construction of the vacuum cleaner. It can be easily done on the operating unit on the bow-handle unit unlocking the pipe device at a remote location of the control unit.

It is advantageous if the bow-grip unit comprises a first section which is arranged on the tube device or in extension of the

Tube means is arranged, and comprises a second portion which is connected to the first portion and the housing, wherein the second portion in particular comprises a curvature region, and in particular the second portion is designed for encasement with an operator's hand. As a result, the vacuum cleaner can be compact and operate in an optimized way and in particular hold. The pipe device or an extension of the pipe device can be used in particular with the first section to "accommodate" an operating unit on the vacuum cleaner. Separately, the second section can be used to allow ergonomic holding and ergonomic suction operation of the vacuum cleaner. It is advantageous if the operating unit is arranged on the first section. This results in a compact design.

For the same reason, it is advantageous if the operating unit is arranged on an inner side of the first section, which faces the second section. As a result, the active element can be moved in a simple manner. Furthermore, this results in a compact, structurally advantageous embodiment of the vacuum cleaner; the active element can be positioned between the tube device and the housing. He can be positioned by protected. When arranged on an inner side of the first section operating unit can in turn act on the operating element in a simple manner on the operating element, since a minimum distance must be bridged. In one embodiment, it is provided that the bow-tie handle unit comprises a third portion which sits on the housing between the first portion and the second portion, and that the operating unit has an actuating element which is positioned on the first portion adjacent to the third portion or an operating element of the operating unit is positioned on the third section. It can be realized, for example, such an embodiment of the vacuum cleaner on the bow-handle unit, which is minimized with respect to edges. For example, this can reduce the risk of injury. It is advantageous if a switch for a suction operation is arranged on the second section. If an operator holds the vacuum cleaner on the second portion of the bow handle assembly, then he can easily access the switch. Conveniently, a connecting pipe between the pipe device and the housing for the fluid-effective connection of the

Pipe device arranged on the suction unit. Through this connection pipe, the tube device and thus a nozzle connection to the pipe device via the suction unit in the housing subjected to a suction flow. The connecting tube may also provide, as it were, a core for the bow-handle assembly (and at least the second portion thereof). For example, the bow-grip unit is formed by the connecting tube and a plastic jacket on the connecting tube.

It is particularly advantageous if the operating unit has a movable actuating element and in particular has a transmission mechanism for transmitting a movement of the actuating element to the active element. It can be effected by the action of an operator on the actuating element, a movement of the active element and thereby in turn can perform a length adjustment of the tube device. The control unit can be trained in a structurally simple way. In particular, the force exerted on the actuator by an operator directly results in movement of the actuator such as displacement of a slider.

It is advantageous if the actuating element is movable in a transverse direction to a longitudinal displacement direction of the tube device and the transmission mechanism converts a corresponding transverse movement into a movement of the active element such as a longitudinal movement of a slider. This results in a simple operability for an operator. He can trigger a length adjustment, for example, by a kind of keystroke.

In an advantageous embodiment, the transverse mobility of the actuating element comprises a rotational movement, ie it is a rotational movement or comprises a rotary component. It can be achieved, for example by applying pressure to a correspondingly articulated pressure switch, a movement of the active element to a release on the pipe device. It is advantageous if the actuating element is coupled to the active element via a toggle lever. This results in a structurally simple design with optimized motion implementation. The toggle then forms a corresponding transmission mechanism (conversion mechanism).

It is favorable if a web rotatable about a first axis of rotation is hinged to the active element, the web is pivotably connected about a second axis of rotation to the actuating element and the actuating element is articulated about a third axis of rotation rotatably connected to the bow-type handle unit. It can thereby be realized in a simple manner, a transmission mechanism via the corresponding hinged web. A rotation of the actuating element can then be transmitted via the web into a movement of the active element as in a displacement of a slider. Alternatively, it can also be provided that the actuating element is firmly connected to the active element. It is positioned, for example, as a kind of movable handle on the active element. About this actuator then the active element can then move directly. It is advantageous if at least one first tube is provided for the length-adjustable tube device, a second tube is provided, a third tube is provided, wherein the first tube is longitudinally displaceably guided in the second tube and the second tube is longitudinally displaceably guided in the third tube a first locking device is provided, which acts between the first tube and the second tube, wherein in a releasable locking position of the first locking device, the first tube is fixed to the second tube with respect to a longitudinal displacement, a second locking device is provided, which between the second tube and the third tube, wherein in a releasable locking position of the second locking means, the second tube is fixed to the third tube with respect to a longitudinal displacement, and a third locking means is provided, which on the first tube, the second raw r and the third tube acts, the third locking means a releasable Locking position in which the second tube is fixed to the third tube with respect to a Längsverschieblichkeit, and has an unlocked position in which a longitudinal displacement of the second tube is released to the third tube, wherein the third locking means with respect to the transition from the locking position to the unlocked position is controlled by a position of the first tube relative to the second tube and / or by a force with which the third locking device acts on the second tube. The length-adjustable tube device is constructed in a cascade. The first tube is displaceable relative to the second tube, wherein the first locking device defines the first tube to the second tube in its locking position. The second tube is slidable in the third tube. However, this mobility is only possible if the third locking device releases it. Since the transition from the locking position to the unlocking position of the third locking device is controlled by the position of the first pipe or by a force, that is position-controlled or force-controlled, this transition results to some extent automatically when a certain position of the first tube to the second pipe is reached. There is no separate actuator required.

Then, when the third locking device is in the unlocked position, the relative position of the second pipe to the third pipe can be adjusted via the second locking device.

It results in ease of use, a large Längeneinsteilbereich for the pipe device.

The length-adjustable tube device has a high ease of use. It is advantageous if the first locking device and the third locking device are coupled to one another such that in the unlocked position of the third locking device, the first locking device is in its locking position. As a result, only the movement of one pipe to another pipe is possible at the same time. When the first tube is moved to the second tube, then the second tube can not be moved to the third tube. When the second tube is moved to the third tube, then the first tube can not be moved to the second tube. This results in a simple adjustability with high ease of use.

It is also advantageous if the first locking device and the second locking device are coupled to one another such that in the locking position of the third locking device, the first locking device and the second locking device can be brought together from their respective locking position into an unlocked position or together in their respective unlocked position are . As a result, it is possible to act both on the first locking device and on the second locking device with a common actuating element. In particular, it is possible to act on the first locking device by means of a corresponding blocking element of the second locking device, without the locking (by the third locking device) of the second tube to the third tube being canceled. Even if the second locking device is in an unlocking position, the second tube is fixed to the third tube via the third locking device in its locking position.

It is then also advantageous if the first locking device and the second locking device are decoupled in the unlocked position of the third locking device, wherein the second locking device can be brought into the locking position and the position of the second tube to the third tube by the second locking device detectably adjustable is. This results in a large length range for the Längeneinsteilbarkeit. In the unlocking position of the third locking device, the first locking device no longer has to be acted upon, since this is in a locking position. It results in ease of use, a compact design.

In one embodiment, the first locking device on a first immersing element, which is in particular a ball or a roller, which is immersed in the locking position in a first recess of the first tube and which is interchangeable for unlocking from the first recess. In particular, in the locking position, the immersion element is also immersed in a corresponding recess of the second tube. As a result, a positive connection between the first tube and the second tube is achieved and the first tube is fixed to the second tube with respect to its Längenverschieblichkeit. If the corresponding first immersion element emerges at least from the first recess, then the positive connection is canceled and a relative movability between the first tube and the second tube is made possible.

In particular, the first tube has a plurality of first recesses spaced in a longitudinal direction of the first tube. As a result, a plurality of different length positions of the first tube can be set and locked in stages to the second tube.

It is also advantageous if the first locking device has a movable first blocking element, which blocks in the locking position a dewatering of the first immersion element from the first recess and releases in an unlocking position a dewatering. The position of the movable first locking element determines whether or not it is possible to escape. This results in a simple locking option, which in turn can be canceled in a simple manner.

In particular, a first receptacle for the first immersion element is arranged on the first blocking element, into which the first immersion element in an unlocking position is submersed. It is thereby made possible an escape from the first recess of the first tube to cancel the positive connection between the first tube and the second tube and a

To allow longitudinal displacement.

It is advantageous if the first blocking element is displaceable parallel to a longitudinal direction of the pipe device. It can thereby achieve a displacement movement by a single actuator for the first displacement means and the second displacement means.

It is also advantageous if a rear part device and in particular spring device is provided, which is endeavored without external force acting on the first locking element to bring this in a locking position for the first immersion element. This results in a simple operation. Due to the restoring force of the rear part device can be achieved with appropriate positioning of the first recess in an automatic manner a lock.

For the same reason as mentioned above in connection with the first locking device, it is expedient for the second locking device to have a second immersion element, which is immersed in the locking position into a second recess of the second tube and which can be exchanged for unlocking from the second recess is. For the above-mentioned reasons, which have been explained in connection with the first locking device, it is also advantageous if the second tube has a plurality of spaced apart in a longitudinal direction of the second tube second recesses. For the above-mentioned reasons, it is also advantageous if the second locking device has a movable second blocking element which, in the locking position, is an escape of the second dipping element. elements from the second recess locks and releases in an unlocked position a dive.

For the same reasons as mentioned above, it is also advantageous if a second receptacle for the second immersion element is arranged on the second blocking element, into which the second immersing element can be immersed in the unlocked position.

Furthermore, it is advantageous for the reasons mentioned above, when the second locking element is displaceable parallel to a longitudinal direction of the pipe device.

Furthermore, it is advantageous for the reasons mentioned above, if a rear part device and in particular spring device for the second locking device is provided, which is endeavored without external force on the second locking element to bring this in a locking position for the second immersing element.

Furthermore, it is favorable if the third locking device has a third immersion element and the second tube and the third tube have corresponding receptacles in which the third immersion element is positioned in the locking position and secures the second tube to the third tube. This makes it possible in a simple manner to fix the second tube to the third tube by positive engagement by means of the third insertion element.

It is particularly advantageous if the first tube has a recess assigned to the third locking device, into which the third immersing element dips into the unlocking position of the third locking device and thereby at least from the receptacle of the third

Tube is excreted. It can thereby be controlled in a simple manner via the position of the first tube to the second tube bring the third locking means of the locking position in the unlocked position, to allow mobility between the second tube and the third tube.

Advantageously, the second tube at the locking position of the third locking device forms a barrier wall for the third immersion element, which holds the third immersion element in the receptacles of the second tube and the third tube and thus a positive connection between the second tube and the third tube to block the corresponding mobility allows.

In particular, a third immersing element of the third locking device or a force-applying element of the third locking device is arranged in a longitudinal direction of the tube device between the first immersion element of the first locking device and a second immersion element of the second locking device. This results in a compact design with a large length adjustment range.

In one embodiment, a Kraftbeaufschlagungselement is provided, which is in particular spring-loaded, and which determines the second tube to the third tube non-positively in the locking position of the third locking means, wherein in the unlocked position of the third locking means the frictional attachment is repealed. In this embodiment, no positive engagement between the third pipe and the second pipe is provided, but a frictional engagement. The Kraftbeaufschlagungselement provides the necessary force for a non-positive fixation. This fixation can be canceled by appropriate positioning of the first tube to the second tube. It can also be canceled by direct operator intervention on Kraftbeaufschlagungselement.

A simple operability, in particular by a single actuator results when the active element to a first blocking element of first locking device and a second locking element of the second locking device is coupled. In particular, both the first blocking element and the second blocking element can be synchronously displaced by the active element in a locking position of the third locking device. This results in a simple operation. Even if the blocking element of the second locking device is displaced into an unlocking position, the second tube nevertheless remains fixed to the third tube when the third locking device is in a locking position.

It is advantageous if the active element is permanently connected to the second blocking element. As a result, when the third locking device is in an unlocking position, by means of actuation of the active element a relative position of the second tube to the third tube can be set in a simple manner.

It is also advantageous if the first blocking element is not permanently connected to the active element and a displacement movement in one

Displacement direction through the active element is done by pushing.

As a result, the first locking element can be acted upon by the active element in a locking position of the third locking device, without the need for an additional actuating element.

In particular, there is a coupling between the active element and the first blocking element in the locking position of the third locking device and in the unlocked position of the third locking device, the active element is decoupled from the first blocking element and in particular spaced. This results in a simple structural design. It must only one actuator, namely the active element (or the

Slider) are provided to allow Längeneinsteilbarkeit in a large length range. It is advantageous if the active element is mounted longitudinally displaceable on the tube device and / or the housing. This results in a structurally simple design easy length adjustment. It is particularly provided that the active element between the housing and the tube device is mounted. He is thus protected from the outside.

The vacuum cleaner has extensive operating possibilities when a nozzle connection for a suction nozzle is arranged on a longitudinally displaceable region of the pipe device (in particular a first pipe) or a suction nozzle is arranged, wherein a distance of the nozzle connection or the suction nozzle to a first housing side of the housing is detectably adjustable wherein the first housing side facing away from a second side of the housing and the bow-handle unit is connected to the second side of the housing with this. As a result, one or more tubes of the tube device can be pulled out to a certain extent beyond the second side of the housing. This can be advantageous, for example, if you want to be sucked under a piece of furniture. This can also be advantageous if it is to be sucked at a height, since then the center of gravity is closer to the operator. The following description of preferred embodiments is used in

In conjunction with the drawings, the detailed explanation of the invention.

Show it

Figure 1 is a perspective view of an embodiment of a vacuum cleaner according to the invention, wherein a suction container is removed from a device body;

FIG. 2 shows a sectional view of the vacuum cleaner according to FIG. 3, an enlarged view of a region on a bow-type handle unit according to FIG. 2; Figure 4 (a) is a (partial) view of the vacuum cleaner (with a partial view of a bow handle assembly) without a floor nozzle, with a pipe means in an extended position; Figure 4 (b) is a view similar to Figure 4 (a) with a floor nozzle, the pipe means being in a further extension position;

Figure 5 is a sectional view taken along line 5-5 of Figure 4 (b); Figure 6 is a sectional view similar to the view of Figure 5, wherein the

Tube means in a further extension position;

Figure 7 is a partial sectional view similar to Figure 5 in an extension position of the tube device, which corresponds to the view of Figure 4 (a).

Figure 8 is an enlarged view of a portion of the tube assembly with locking means, the position shown corresponding to a non-extension position;

FIG. 9 shows an exemplary embodiment of a pipe device which is adjustable in length, in an overall position with a minimum length;

Figure 10 is a view similar to Figure 9, wherein now an extension position is reached, in which a first tube is displaced relative to a third tube, starting from the starting position of Figure 9;

Figure 11 shows a further extension position of the pipe device, in

which now a second tube is displaced from the third tube; Figure 12 is a sectional view of the third tube of the tube device according to Figure 9;

FIG. 13 shows a sectional view of the second tube of the tube device according to FIG

Figure 9; and

FIG. 14 shows a sectional view of the first tube of the tube device according to FIG

Figure 9. An embodiment of a vacuum cleaner according to the invention, which is shown in Figures 1 to 3 and in Figures 4 to 14 in partial representations and designated therein with 10, comprises a device body 12. The device body 12 has a housing 14. On the housing 14, a length-adjustable tube device 16 is arranged.

The housing 14 has a first housing side 18. Opposite the first housing side 18, it has a second housing side 20. The housing 14 extends between the first housing side 18 and the second housing side 20 in a first extension axis 22.

The pipe device 16 has a suction orifice 24. At the tube device 16, a suction nozzle such as a floor nozzle 26 can be fixed at a lower end. The corresponding suction nozzle as floor nozzle 26 has its own suction port 28.

In Figures 1 and 2, the vacuum cleaner 10 is shown in a standing position. In this position, the floor nozzle 26 is on a surface 30. The first housing side 18 faces the floor nozzle 26 (and thus also the surface 30), and the second housing side 20 faces away from the floor nozzle 26 (and thus the surface 30).

In the housing 14, a suction unit 32 and a suction container 34 are arranged one above the other in the first extension axis 22. Based on a flow guide, the suction unit 32 is arranged downstream of the suction material container 34. The suction material container 34 lies on the second housing side 20 or an upper side 36 of the suction material container 34 is closer to the second housing side 20 than to the first housing side 18.

The suction unit 32 is arranged in the housing 14 and is seated on the first housing side 18 or is closer to the first housing side 18 with a lower side 38 than to the second housing side 20.

The suction unit 32 includes a fan motor 40 and a fan 42. The fan 42 is rotationally driven by the fan motor 40. The housing 14 has a housing wall 44, on which a third housing side 46 is formed. The third housing side 46 extends between the first housing side 18 and the second housing side 20.

In one embodiment, the third housing side 46 is planar.

The housing 14 is closed via a further housing wall 48, which is connected to the housing wall 44 and lies transversely to the first housing side 18 and the second housing side 20. The further housing wall 48 has in particular a curved shape.

The tube device 16 extends along a second extension axis 50. The second extension axis 50 is parallel to the first extension axis 22. The tube device 16 is fixed or mounted on an outer side of the housing 14 on the housing wall 44. The tube device 16 is adjustable in length. It has a nozzle connection 52 with the suction orifice 24.

In one embodiment, the nozzle port is formed on a first tube 54. The first tube 54 is displaceable lengthwise in a second tube 56 in a displacement direction which is parallel to the second extension axis 50. The second tube 56 is slidably guided in a third tube 58. The tube device 16 is designed as a telescopic device in order to achieve a Längeneinsteilbarkeit.

With regard to the training of this telescopic tube device is on the non-prepublished international application PCT / EP2015 / 054749 from

6 March 2015 and incorporated by reference to the disclosure of this application. Embodiments of the tube device 16 will be explained in more detail below.

The pipe device 16 has a further connection 60. This terminal 60 is fixed (immovable) with respect to the housing 14. It protrudes beyond the second housing side 20 in the direction of the second extension axis 50.

On the second side of the housing 20, a housing connection 62 is arranged. Zwi see the connection 60 of the tube device 16 and the housing connection 62, which sits on the third tube 58, a connecting pipe 64 is arranged. The connecting tube 64 ensures a fluid-effective connection between the tube device 16 (and in the process the suction orifice 28) and the suction device 32 with the suction material container 34 therebetween.

The connecting tube 64 is designed in particular as a rigid tube and made for example of a metallic material or plastic material. The connecting pipe 64 is arranged on a bow-type handle unit 66, on which an operator can hold the vacuum cleaner 10 and, for example, can also use it as a hand-held vacuum cleaner.

In one embodiment, a lid 61 and in particular hinged lid 61 is provided on the connecting pipe 64, in particular in the vicinity of the terminal 60. The lid 61 covers an opening on the connecting pipe 64. Through the opening of the lid 61, a fluid-effective connection is made between an outer space around the vacuum cleaner 10 and an inside of the connecting pipe 64. By opening the lid 61, a false air opening can be provided, which can be used, for example, to release a suction nozzle, which is fixed to the tube device 16, from the surface 30, if it has been firmly sucked on this surface.

Alternatively or additionally, can be over the opening after opening the

Cover dirt on the pipe device 16 and the connecting pipe 64 remove.

The nozzle port 52 and thus the suction port 24 is closer to the first housing side 18 than to the second housing side 20. A position of the nozzle port 52 and thereby a suction nozzle held thereon is adjustable relative to the second housing side 20; a distance of the nozzle connection 52 to the second side of the housing 20 is detectably adjustable via the tube device 16.

Reference is made in this context to PCT / EP2015 / 054749. The device body 12 comprises a receiving space 72 formed in the housing 14 for the suction material container. In the receiving space 72 of the suction container 34 can be used detachably. The receiving space 72 is between see the suction unit 32 and the housing terminal 62 formed on the housing 14.

On the device body 12, a first terminal 74 is arranged. This first connection 74 is in fluid-effective connection with the suction device 32 and thereby with the blower 42. The first connection 74 is a connection to the receiving space 72.

The first terminal 74 has, for example, a circular opening.

Via the first connection 74, a suction current can be applied to the vacuum cleaner 10.

Spaced to the first port 74, a second port 76 is provided. The second connection 76 is fluidically connected to the housing connection 62 or formed by the housing connection 62. The second port 76 is in fluid communication with the suction port 24 and with the nozzle port 52, respectively. Via the second port 76, a Saugstrombeaufschlagung at the nozzle port 52 can be achieved.

The first connection 74 and the second connection 76 are in particular arranged in alignment in the first extension axis 22.

The second terminal 76 has, for example, a circular cross-section.

The first connection 74 forms a suction nozzle of the suction unit 32.

The vacuum cleaner 10 has a door 78, which serves to close the receiving space 72. The door 78 is in its outer contour in particular formed so that it has the same shape as the other housing 48.

It is for example possible that the door 78 is formed as a swing door, which is pivotally mounted on the device body 12.

In one embodiment (see Figure 1), the door 78 is designed to be removable as a whole. The suction material container 34, when it is arranged on the device body 12 (Figure 2), is positioned in the receiving space 72 behind the door 78.

It is basically possible that the door 78 and the suction container 34 are separate from each other. For example, then the door 78 can be opened (for example by removing or swiveling away) and the suction material container 34 can be removed from the receiving space 72 or inserted into it.

In the embodiment according to FIG. 1, the door 78 and the suction material container 34 are connected to one another. If the suction container 34 is correctly inserted into the receiving space 72 (see below), then thereby the door 78 is closed and the receiving space 72 is covered by the door 78 to the outside or when the door 78 is inserted, the suction container 34 positioned correctly.

The suction container 34 forms a unit which comprises a closed container 80 with connections. The container 80 has a bottom 82, a container wall 84 which projects from the bottom 82 and is integrally connected, for example, to the bottom 82, and a container lid 86, which in particular removably sits against the container wall 84. When positioned on the device body 12 Suction container 34, the bottom 82 faces the first port 74 and the container lid 86 faces the second port 76. The container lid 86 is connected to the container wall 84, for example via a rotary closure. There are also other possible connections between the container lid 86 and the container wall 84.

The container 80 has, for example, an at least approximately cylindrical shape.

For example, via the container wall 84 of the suction container 34 is fixedly connected to the door 78. The suction material container 34 has a first chamber 88 and a second chamber 90. At the bottom 82, a first suction container port 92 is formed. This is in particular arranged centrally and has an example circular opening. The first suction container connection 92 serves for fluid communication with the first connection 74 of the device body 12.

On the container lid 86, a second suction container connection 94 is arranged. This serves for fluid communication with the second connection 76 of the device body 12. The first suction container connection 92 and the second suction container connection 94, when the suction material container 34 is inserted on the apparatus body 12, are spaced apart from one another in the first extension axis 22.

A distance between the first suction container connection 92 and the second suction container connection 94 is smaller than a corresponding distance between the first connection 74 and the second connection 76. In particular, the first suction-material container connection 92 and the second suction-material container connection 94 are arranged in alignment with the first extension axis 22 on the suction-material container 34. When the suction-material container 34 is inserted on the device body 12, the first suction-material container connection 92 is connected directly to the first connection 74 in a fluid-effective manner. The second suction container connection 94 is connected directly to the second connection 76 in a fluid-effective manner. The first suction material container connection 92 is connected directly to the second chamber 90 in a fluid-effective manner. The second suction container connection 94 is connected directly to the first chamber 88 in a fluid-effective manner.

Via the suction material container connections 92, 94, a suction flow generated by the suction unit 32 can be passed through the suction container 34, so that corresponding to the nozzle connection 52 with a

Suction flow can be acted upon.

Dirt sucked in via the nozzle connection 52 flows through the pipe device 16 and is coupled into the suction material container via the second suction material container connection 94. The first suction container port 92 provides the flow connection to the suction unit 32 as a source of negative pressure (the suction flow).

In the suction container 34 is designated as a whole 100 designated separating device. The separator ensures the separation of dirt particles from a stream of air.

In one embodiment, the separator device 100 is formed as a filter-separator and is multi-stage according to the chambers 88, 90.

The suction container 34 forms a filter box or a filter separator. In the first chamber 88, a pre-separator 102 for "coarse dust" is arranged. In the second chamber, a filter device 104 is arranged for dust. Related to a flow guide for a dirt-laden

Suction flow is the pre-separator 102 of the filter device 104 for

(Fine) dust upstream. The second suction material container connection 94 opens into the pre-separator 102. An outlet of the filter device 104 opens into the first suction material container connection 92. The pre-separator 102 comprises a receiving basket 106, which is designed in particular as a mesh basket. The receiving basket 106 is made of a plastic material, for example. The receiving basket 106, for example, has the shape of a truncated cone with predetermined by the grid structure openings. At the openings a mesh structure, for example in the form of a fabric is arranged.

The mesh structure defines over a mesh size which dust particles are collected in size in the receiving basket 106 and which are transmitted to the filtering device 104. Typical values for mesh widths of the mesh structure are in the range between 100 μηη and 200 μΓΠ. Coarse dust collected by the pre-separator 102 is then larger in size than the medium diameter particles

Mesh width and particulate matter collected by the filter device 104 is made up of particles of medium diameter smaller than the mesh width.

The receiving basket 106 has a receiving space. Through the receiving space, a dirt-laden suction flow is performed during operation of the vacuum cleaner 10. The meshes of the mesh structure of the mesh basket provide for flow through. The receiving basket 106 is associated with a lid. The lid is used to cover the receiving basket 106 to the second side of the housing 20 back. The second suction container connection 94 is arranged on the lid. It is basically possible for the lid to form the container lid 86.

In an alternative embodiment, the lid and container lid 86 are separate. On the lid sits (at least) a pin-shaped element. When the lid is closed, the active element is immersed in the receiving space of the receiving basket 106.

The action element is designed so that when the lid is opened it is moved through the receiving space of the receiving basket. As a result, dirt in the receiving space is "solved".

With regard to a corresponding separator device with a pre-separator, reference is made to the international application

PCT / EP2015 / 054766 dated 6 March 2015. The separator device or the filter box (suction material container) 84 is basically the same design as described there. Full reference is made to PCT / EP2015 / 054766.

In the second chamber 90, which is located between the second suction material container connection 94 and the pre-separator 102, the filter device 104 is arranged, which is designed in particular as a cartridge filter.

The filter device 104 comprises a filter element, which is aligned along the first extension axis 82 and, for example, is tubular in shape with filter folds. The filter folds are seated on a base, via which in turn the filter device on the container 80 and in particular on the bottom 82 and / or the container wall 84, for example via a

Bayonet connection is fixed. An opening in the filter element 102, which is surrounded by filter material of the filter folds, and an opening in the bottom corresponds to the first suction container connection 92. For example, the first suction container connection 92 is formed by the filter device 104 at the bottom.

The filter element is closed with respect to its interior to the pre-separator 102 out. Spaces between filter pleats are open to the pre-separator 102.

A suction flow, which is decoupled via the first connection 74 on the device body 12, enters the suction material container 34 via the first suction material container connection 92. He enters into the filter device 104 and there between filter folds over an end face of the filter element. The suction flow flows through the filter material of the filter folds, wherein dust particles do not penetrate the filter element, that is to say essentially remain attached to the filter element.

At the first suction container connection 92 is a suction flow ready, the dust load is significantly less dust-laden compared to the suction flow, which is coupled into the second suction tank connection 94.

Upon rotation of the container 80 engaging means act on filter folds of the filter element and "shake" them, thereby releasing adhering dust particles. As a result, a dust load of the environment when emptying the suction container 34 can be reduced. Reference is made in this connection to PCT / EP2015 / 054766. If the suction material container 34 is removed from the device body 12, then the receptacle basket 106 can be removed and emptied after opening the container lid 86. If required, the filter device 104 can be deactivated. be taken and exchanged or shaken, the dust on a front side of the filter device 104 can be emptied.

The suction material container 34 (the filter box) can be accepted by the device body 12 in order to be able to empty the suction material container 34 and if necessary to be able to clean the suction material container 34 or to replace the filter device 104.

For the operation of the vacuum cleaner 10, it is provided that a fluid-tight connection between the first port 74 and the first suction container connection 92 and / or between the second connection 76 and the second suction material container connection 94 is present. For this purpose, a sealing device is provided, which is designated as a whole by 116. With regard to the construction of the fluid-tight connection, reference is made to the non-prepublished international patent application PCT / EP2016 / 062194 dated May 30, 2016, and incorporated herein by reference.

The tube device 16 is telescopic (Figures 4 to 14). The pipe device 16 includes the third tube 58, which is fixedly mounted on the housing 44. The third tube 58 has an extension in the second extension axis 50. The third tube 58 is particularly rigid. In the third tube 58, the second tube 56 is arranged and thereby guided in the direction of the second extension axis 50 Iängsverschiebiich. The second tube 56 is also rigid. It is designed in particular in the form of a cylinder ring. Accordingly, an interior of the third tube 58 is (hollow) cylindrical.

In the second tube 56, the first tube 54 is longitudinally displaced in the second extension axis 50. The first tube 54 is ring cylindrical educated. Accordingly, the second tube 56 has a (hollow) cylindrical interior.

The nozzle port 52 is disposed on the first tube 54.

Corresponding relative positions of the second tube 56 to the third tube 58 are detectably adjustable. Accordingly, positions of the first tube 54 to the second tube 56 (and thus also to the third tube 58) are detectably adjustable.

The tube device 16 is associated with a first locking device 240 (cf., for example, FIG. 9), which acts between the first tube 54 and the second tube 56 and fixes the first tube 54 on the second tube 56 in a locking position. This locking position is detachable.

Furthermore, the tube device 16 is associated with a second locking device 242, which acts between the third tube 58 and the second tube 56. The second locking device 242 fixes the second tube 56 to the third tube 58 in a locking position. This locking position of the second locking device 242 is releasable.

Furthermore, the tube device 16 is assigned a third locking device 244. This third locking device 244 acts between the first tube 54, the second tube 56 and the third tube 58. In a releasable locking position of the third locking device 244, this secures the second tube 56 to the third tube 58. This locking position is releasable in an unlocked position. In the unlocked position of the third locking device 244, a displaceability of the second tube to the third tube 58 is released, but by the second locking position 242 a specific position of the second tube 56 to the third tube 58 can be fixed. The transition from the locking position of the third locking device 244 to the unlocked position is predetermined via the first tube 54. In one embodiment, a position of the first tube 54 to the second tube 56 determines the transition from the locking position to the unlocking position of the third locking device 244.

In another embodiment, a force action determines this transition. The first locking device 240 includes a first submerging element 246. This first submerging element 246 is, for example, a ball or a roller.

First recesses 248 are arranged at a distance from the first tube 54 in a direction along the second extension axis 50; see . also FIGS. 4 (a), 4 (b) and 5.

In one embodiment, three spaced first recesses 248 are disposed on the first tube 54.

A first recess 248a, which is closest to the nozzle port 52, defines the position of the first tube 54 relative to the housing 14 and thus the position of the nozzle port 52 for the standing position (see Figure 1). When the first submerged element 246 is immersed in the first recess 248a and the first locking device 240 is locked, the position of the nozzle port 52 to the first housing side 18 is reached, at which a first fixing device and a second fixing device can cooperate with each other to the stand position to fix. The first locking device 240 also has a movable first blocking element 250 (cf., for example, FIG. This movable first blocking element 250 has a contact region 252 for the first immersion element 246. If this investment area 252 is above the first dip element 246 is located, then by the first immersion element 246 is held in the corresponding first recess 248 and it is made the locking position. In Figure 10, the locking position of the first locking device 240 is shown.

Adjacent to the abutment region 252, the first blocking element 250 has a first receptacle 254. The first receptacle 254 has a chamfered wall 256 facing the abutment region 252.

If the first receptacle 254 is above the first immersion element 246, then the first immersion element 246 can emerge from the corresponding first recess 248 and dip into the first receptacle 254.

On the second tube 56, a recess 258 is formed, which is continuous. When the second submerged element 246 is in the recess 258 and in the corresponding first recess 248, longitudinal displacement between the first tube 54 and the second tube 56 is disabled. If the first receptacle 254 is located above the recess 258 by appropriate positioning of the first locking element 250, then the first immersion element 246 can completely escape from the first receptacle 254 and, accordingly, the mobility of the second tube 56 to the first tube 54 is released.

The first blocking element 250 is arranged on a guide 260 and guided longitudinally displaceably in a direction parallel to the second extension axis 50.

At the first blocking element 250, a rear part device 262 is arranged, which is formed in particular by one or more springs. The rear part device is positioned on the guide 260. If the first Locking element 250 is moved so that the first receptacle 254 is located above the recess 258, then the force of the back device 262 must be overcome. Without external force acting on the first blocking element 250, this recoils and the abutment region 252 covers the recess 258, thereby holding the first immersion element 246 in the first receptacle 254 and thereby in turn blocking longitudinal displacement of the first tube 54 to the second tube 56.

The second locking device 242 has a second immersion element 246, which is, for example, spherical or roller-shaped. Second recesses 266 are arranged on the second tube 56 in a direction parallel to the second extension axis 50. At the third tube 58, a through recess 268 is arranged. In a locking position, the second immersion element 264 is seated in the second recess 266 and the recess 268, that is, immersed in it.

The second locking device 242 furthermore has a second blocking element 270, which comprises an abutment region 272. The abutment region 272 basically has the same function as the abutment region 252 of the first blocking element 252. Accordingly, the second blocking element 270 has a second receptacle 274.

In the locking position of the second locking device 242, the second immersing element 246 is immersed in a corresponding second recess 266 and the recess 268 and the abutment portion 272 is located above the second immersion element 264 and secures this position.

By displacement of the second locking element 270, the second receptacle 274 is brought via the second immersion element 264, that is to say via the recess 268, and the second immersion element 264 can dip out and thereby dip into the second receptacle 274. Thereby, the positive connection between the second tube 56 and the third tube 58 is repealed and it is for the second locking device 242, the locking position is canceled.

The second blocking element 270 is guided longitudinally displaceably on a guide 276. A displacement direction is parallel to the second extension axis 50.

The second blocking element 270 is associated with a rear part device 278, which is formed in particular by a spring.

For a movement of the second locking element 270 to bring the second receptacle 274 over the second immersion element 264, the force of the back part device 278 must be overcome. For this purpose, a corresponding external force is necessary. Without this external force, the return device 278 ensures a return displacement of the second locking element 270 in order to bring the abutment region 272 over the second immersion element 264 and press it into a corresponding second recess 266.

A plurality of corresponding second receivers 274 are arranged on the second tube 56 in order to allow a corresponding variable setting and fixing of the position of the second tube 56 to the third tube 58.

On the housing 14 of the vacuum cleaner 10, a slider 280 (for example, Figure 2 and 3) is arranged as an active element 280 for unlocking. This active element 280 is movable relative to the tube device 16 and guided longitudinally displaceably parallel to the second extension axis 50.

The slider 280 extends along the housing wall 44 and thereby along the third tube 58 to the second locking element 270. The second locking element 270 is connected to the slide 280 in a force-transmitting manner. For example, the connection is fixed. In one embodiment, the second blocking member 270 is seated approximately at the level of an upper portion of the blower motor 40.

There is a corresponding guide for the longitudinal displacement 280 of the slider on the housing 44 is provided.

It is also possible in principle for the slide 280 to be arranged so as to be longitudinally displaceable on the tube device 16. The first blocking element 250 is coupled to the slider 280, but not permanently connected thereto.

The second blocking element 270 (FIG. 8) has, in continuation of the contact region 252, an end-face end 282. With this front-side end 282, the second blocking element 270 can act on the first blocking element 250 and, by displacement of the slider 280 and thus of the second blocking element 270, basically the first blocking element 250 can be displaced in the same direction, as long as the second tube 56 is not opposite the third Tube 58 is moved.

The guide 260 for the first blocking element 250 is fixedly connected to the second tube 56. The guide 276 for the second blocking element 270 is fixedly connected to the third tube 58. The third locking device 244 comprises a third immersing element 284, which is designed in particular as a roller or ball. The third immersion element 284 is positioned relative to a direction along the second extension axis 50 between the first immersion element 246 and the second immersion element 264.

On the third tube 58, a receptacle 286 for the third immersion element 284 is formed. Correspondingly, a receptacle 288 for the third immersion element 284 is formed on the second tube 56. If the third one immersion element 284 is seated in the receptacle 286 and in the receptacle 288, then a positive coupling between the third tube 58 and the second tube 56 is made, thereby fixing the second tube 56 with respect to its mobility to the third tube 58. Even if the second locking means 242 is not locked, that is, in an unlocked position, the second tube 56 can not be displaced in the third tube 58 when the third locking means 244 is in its locking position in which the third immersing element 284 in FIG the receptacle 286 and in the receptacle 288 sits.

The receptacle 288 in the second tube 56 is open to the first tube 54. In this case, a wall 290 of the first tube blocks a mobility and thus a replaceability of the third immersion element 284 from the receptacles 286 and 288.

The first tube 54 has adjacent to an end 292, which faces away from the nozzle connection 52, a recess 294 for the third immersion element 284 (cf., for example, FIG. 9 or FIG. This recess 294 is seated on a different side than the first recesses 248. For example, the recess 294 and the first recesses 248 are arranged diametrically opposite one another.

For example, the first dip element 284 is disposed diametrically opposite the second dip element 264 (where it may be positioned at a different height position with respect to the second extension axis 50).

The recess 294 is associated with the third immersion element 284. The locking position of the third locking device 244 is present when the third immersing element 284 is not immersed in the recess 294.

When the first tube 54 is to the second tube 56 at a certain position, namely in the position that the recess 294 the third immersion element 284 is opposite, then the third immersion element 284 can dive out of the receptacle 286 of the third tube 58. As a result, the positive connection between the second tube 56 and the third tube 58 is released and the unlocking position is reached, in which the third locking device 244 releases the locking of the third tube 58 in the second tube 56. In this unlocking position of the third locking device 244 acts with respect to the determination of the position of the second tube 56 to the third tube 58 only the second locking device 242. The transition from the locking position of the third locking device 244 in the unlocked position by the position of the first tube 54 to the second tube 56 is determined, namely when the recess 294 is positioned opposite the third immersing element 284 and the third immersing element 284 is inserted into the recess 294. In this position, a maximum telescopic position of the first tube 54 to the second tube 56 is achieved.

The recess 294 is arranged so that the third immersion element 284 can only dip when the first locking device 240 is in a locking position. A height distance between the recess 294 and the corresponding highest first recess 248 (designated by 248b in FIG. 14) is such that it corresponds to a distance between the first immersion element 246 and the third immersion element 284.

The relative height distance along the second axis of extent 50 between the first dip element 246 and the third dip element 284 remains constant regardless of the position of the first tube 54 to the third tube 58 and the second tube 56 to the third tube 58; when the third immersion element 284 has emerged from the receptacle 286 of the third tube 58 and is immersed in the recess 294, then it is entrained by the movement of the second tube 56 to the third tube 58 with the second tube 56. Because the guide 260 is fixed to the second tube 56 is arranged and the third immersing element 284 in a direction parallel to the second extension axis 50 fixed relative to the second tube 56, the entrainment described is carried out. It is alternatively possible that the transition from the locking position to the unlocked position of the third unlocking device 244 is force-controlled.

In an exemplary embodiment, which is also shown in broken lines in FIG. 8 as an alternative, no immersion element corresponding to the third immersion element 284 is provided.

A force (instead of a positive connection via a submersible) ensures a frictional coupling between the third tube 58 and the second tube 56 for the corresponding determination of the relative position. If, for example, by appropriate positioning of the first tube 54, the application of force is then such that no frictional coupling is no longer present, then the unlocking position is reached. For applying force, a force-applying element 296 is provided, such as a spring-loaded lever element.

In the unlocking position of the third locking device 244, in which the second tube 56 are locked to the first tube 54 via the first locking device 240, this combination of the second tube 56 and the first tube 54 as a whole relative to the third tube 58 is displaceable. As a result, the first blocking element 250 is decoupled from the second blocking element 270 and it releases itself from the contact at the front end 282 and thus separates from the slider 280. The slider 280 no longer acts on the first locking device 240.

The tube device 16 with the locking devices 240, 242, 244 functions as follows: In the standing position of the vacuum cleaner 10 (see Figure 1), the second tube 56 is completely immersed in the third tube 58 within its movement distance. The first tube 54 is completely immersed in the second tube 56 within its movement distance. The position of the second tube 56 is fixed relative to the third tube 58 by the second locking device 242 and the third locking device 244.

The nozzle connection 52 projects beyond the first side of the housing 18 so far that the floor nozzle 26 can be fixed and in the standing position the first

Fixation device can act on the second fixing device.

The length of the tube device 16 is increased for a suction operation based on the position.

For this purpose, first the first tube 54 is extended out of the second tube 56.

For this purpose, the slider 280 is actuated and moved downwards, that is, moved in the direction of the nozzle connection 52. It displaces the second blocking element 270 and, via abutment of the front-side end 282, also the first blocking element 250. The displacement of the first blocking element 250 causes, when the first receptacle 254 lies above the recess 258, an immersion of the first immersion element 246, in which case the positive connection between the first tube 54 and the second tube 56 is lifted and the first tube 54 relative to the second tube 56 is displaceable.

A corresponding displacement position is locked by stopping the force on the slider 280 without corresponding immersion of the immersion member 246 in a recess 248 and depending on the desired longitudinal position and holding over the contact area 252.

Upon actuation of the slide 280, the second locking device 242 is simultaneously actuated with the first locking device 240. bolted. Due to the third locking device 244, however, the second tube 56 remains fixed to the third tube 58, as long as the third immersion element 284 is not immersed in the recess 294. In FIGS. 4 (a), 4 (b) and 5, different positions of the first tube 54 to the second tube 56 are shown, with the second tube 56 fixed to the third tube 58 via the third latch 244.

The positions of the first tube 54 to the second tube 56 indicated in FIGS. 4 (a) and 4 (b) are positions with the locking position. The position of Figure 4 (a) corresponds to a position for a hand suction operation. The position of Figure 4 (b) corresponds to a position for a bottom suction operation for a small operator. The position of the nozzle port 52 and thus also a suction nozzle relative to the first housing side 18 is adjustable within the predetermined distance.

FIG. 9 shows a locking position for the first locking device 240, the second locking device 242 and the third locking device 244, which corresponds to the locking position, that is to say in which the tube device 16 has a minimum length.

FIG. 10 shows a position of the pipe device 16 which corresponds to the position according to FIG.

If the first tube 54 is extended so far out of the second tube 56, that the third immersion element 284 can penetrate into the recess 294 in the region of the end 292, then a locking position of the first locking device 240 is reached. The third locking device 244 is now in an unlocked position and, in principle, the second tube 56 is longitudinally displaceable relative to the third tube 58 and the second locking device 242 now determines a displaceability of the second tube 56 to the third tube 58 and a determination of a displacement position by adjusting the corresponding locking position of the second locking device 242. In Figures 6, 8 and 11 corresponding different positions for locked positions of the second tube 56 are shown to the third tube 58.

When the second tube 56 is displaced from the third tube 58 from a home position in which the third latch 244 is latched, the first latch 250 is decoupled from the slider 280 and thus from a second latch 270. See . for example, Figure 11. The first blocking element 250 is spaced from the second blocking element 270.

If, starting from an extended position, the second tube 56 is pushed back into the third tube 58 within its corresponding distance by locking the second locking means 242, then an end position is reached when the first locking member 250 engages the front end 282 of the second locking member 270 strikes. By actuating the slider 280, a locking position of the first locking device 240 can then be achieved and the third immersion element 284 can dip into the receptacle 286. As a result, in turn, the second tube 56 is fixed to the third tube 58 and the first tube 54 can be moved in the second tube 56. It is then the stand position again. By means of the tube device, it is possible to set a length of the tube device 16 over a large length range via (at least) three tube elements 54, 56, 58. It must be provided only one operating element, namely the slider 280. This results in a high ease of use. The position of the slider 280 determines whether or not the second locking means 242 (and the first locking means 240) are in the locking position from the stand position. If the first locking device 240 is not in the locking position, then leaves the first tube 54 move relative to the second tube 56. A displaceability of the second tube 56 to the third tube 58 is predetermined by the position of the first tube 54 to the second tube 56, without an additional operating element must be provided.

The length adjustment of the tube device 16 has a high ease of use.

In principle, the solution can also be transferred to a tube device with more than three tubes. The tube device with the three tubes 54, 56, 58 and the corresponding locking devices 240, 242, 244 effectively forms a basic cell for a construction with more than three tubes.

The bow-type handle unit 66 comprises a first section 302 (see FIG. 3) which is connected to the tube device 16 and extends substantially parallel to the second extension axis 50.

In an alternative embodiment, the first portion 302 is arranged in extension of the tube device 16.

The bow grip unit 66 further comprises a second portion 304. This second portion 304 connects the first portion 302 to the housing 14. The second portion 304 is formed like a bow. In one embodiment, it has a curved portion 306 which is connected to the first portion 302. The curved portion 306 merges into a straight portion 308 which is connected to the housing 14. Through the second section 304, the connecting pipe 64 extends. The second section 304 is, for example, through the connecting pipe 64 and a

"Outer housing" (for example, made of plastic) around the connecting pipe 64 around. In one embodiment, the bow grip unit 66 still has a third section 310. This third portion 310 is disposed between the first portion 302 and the second portion 304 on the housing 14. It is, for example, connected to the tube device 16 or it has a region 312 which is oriented at least approximately parallel to the second extension axis 50 (the extension axis of the tube device 16). The second portion 304 of the bow-handle unit 66 is designed as a bow-shaped handle. An operator may grip the vacuum cleaner 10 on the second section 304. Between the first portion 302 and the second portion 304 and the housing 14 and the third portion 310, a free space 314 is formed, which is surrounded by the first portion 302, the second portion 304 and the third portion 310 and the housing 14. Through this space 314 fingers of an operator's hand can dive through.

The lid 61 is disposed on the curved portion 306 of the second portion 304 in one embodiment.

In one exemplary embodiment, a gripping element 316 (see FIG. 1), for example in the form of a grip shell, is arranged on the free space 314 on the second section 304. This gripping element 316 has a first region 318a and a second region 318b. The first region 318a is disposed along the curved portion 306 on the inner side toward the clearance 314. The second region 318b, which is connected to the first region 318a and in particular is integrally connected, is arranged along the straight region 308 on an inner side towards the clearance 314 and aligned at an angle to the first region 318a.

At the second section 304, a switch 320 is arranged, via which a suction operation of the vacuum cleaner 10 is switched on and off. The desk 320 is in particular at one end of the second portion 304 to the housing 14 out and positioned in particular to the other housing wall 48 out. It is preferably positioned to be operable by an operator's hand (eg, via the thumb) when the vacuum cleaner 10 is held on the loop handle assembly 66 and thereby on the second section 304.

At the bow-handle unit 66, an operating unit 322 is arranged, which allows a length adjustment of the tube device 16. The operating unit 322 acts on the slider 280.

In one embodiment, the operating unit 322 comprises an actuating element 324, which is arranged on the first portion 302 in the free space 314 facing. This actuating element 324 is designed as a pressure switch which is rotatable or pivotable about a (third) axis of rotation 326. In FIG. 3, the third axis of rotation 326 is perpendicular to the plane of the drawing.

The third rotation axis 326 is perpendicular to the second extension axis 50.

To the slider 280, a web 328 about a first axis of rotation 330 is pivotally (pivotably) articulated. The first axis of rotation 330 is parallel to the third axis of rotation 326 and spaced therefrom. The web 328 is articulated to the actuating element 324 about a second axis of rotation 332. The second axis of rotation 332 is spaced from the first axis of rotation 330 and to the third axis of rotation 326. The second axis of rotation 332 is parallel to the first axis of rotation 330. The web 328 with its respective pivot points to the actuator 324 and the slider 280 forms a transmission mechanism 336, through which a movement of the actuating element 324 is transferable to the slider 280 for its movement. The mobility of the actuating element 324 is a transversal mobility to the second extension axis 50, ie to the length adjustment direction of the tube device 16.

In the embodiment shown, the actuator 324 has a (rotational) mobility 334 due to the articulation with the third axis of rotation 326. This mobility 334 is transmitted via the web 328 into a longitudinal displacement of the slider 280 in its guide parallel to the second

Extension axis 50 implemented.

By a corresponding movement of the slider 280 can then, as described above, a release on the tube means 16 are effected, in particular by the second locking means 242 is brought from its locking position. By a corresponding movement and positioning of the slide 280, the first locking device 240 can then be unlocked and thereby the first tube 54 can be moved relative to the second tube 56. A displacement of the second tube 56 and third tube 58 is then dictated by the position of the first tube 54 to the second tube 56.

By appropriate dimensioning of the transmission mechanism 336 can then just just the slider 280 to move so that the first locking device 242 is unlocked.

In particular, the transmission mechanism 336 is formed with the web 328 and its articulation points as a toggle mechanism.

It can then be pulled out of the pipe device 16, the first tube 54 and the gravity effect, in particular with connected floor nozzle 26 may be sufficient to move the first tube 54 accordingly. The actuating element 324 of the operating unit 322 is designed such that it covers the transmission mechanism 336 with the web 328 and its connecting points to the free space 314. As described above, the actuator 324 is hinged to the first portion 302. The articulation takes place for example via a film hinge, via which then the third axis of rotation 326 is realized. The actuator 324 is connected to the bow handle assembly 66. It is provided that the actuating element 324 is articulated via a region 336 to the third section 310 of the bow-shaped handle unit 66. The linkage is such that the described mobility of the actuator 324 is allowed to operate the transmission mechanism 336 with the web 328 operatively.

The operating unit 322 on the bow-grip unit 66 can be operated in a simple manner. For example, an operator can hold the bow grip unit 66 with one hand, and with the other hand, the actuation element 326 can be actuated in particular by pressure actuation. It can then be the appropriate release on the pipe means 16 to the length adjustment.

The actuating element 324 of the operating unit 322 is movably arranged on the bow-shaped grip unit 66 and in this case on the third section 302. It is coupled to the transmission mechanism 336 with the web 328 and the corresponding pivot points.

It can also be provided that an actuating element 338 of the operating unit 322, as schematically indicated in FIG. 6, is arranged on the housing 14 or on the third section 310. The corresponding actuating element 338 is designed in particular as a push button or the like. It is movable in a direction perpendicular to the second extension axis 50, i. H. has a transverse mobility to this second extension axis 50 on. A corresponding transmission mechanism is provided, which converts this transverse movement into a longitudinal displacement of the slider 280. For example, a type of ramp guide is provided which is coupled to a toggle mechanism or the like to convert this transverse displacement into a longitudinal displacement in the second extension axis 50.

Preferably, the actuator 324 is arranged and configured such that when pressure is not applied, it returns to its home position. As a result, a locking on the first locking device 240 can take place again if a corresponding locking occurs, and a set length position on the tube device 16 is secured.

It is also possible, as indicated schematically in FIG. 5, that an actuating element 340 of the operating unit 322 is fixedly connected to the slider 280 and is guided on the first section 302 of the bow-shaped handle unit 66. It is, for example, spring-supported, with a spring force of a corresponding spring device endeavoring to displace the actuating element 340 away from the second housing side 20 and thereby bringing it into a stop position.

When the actuator 340 down in the direction of the first

Housing page 18 is moved under appropriate force by an operator, then the slider 280 is moved with and the first locking device 240 is released and it can be as described above, the corresponding length adjustment of the tube device 16 perform.

According to the invention, a vacuum cleaner is provided, which has an operating unit 322 for length adjustment of the pipe device, which is arranged on the bow-type handle unit 66. This results in a simple operability of the vacuum cleaner for a length adjustment of the pipe device. The operating unit 322 acts with its corresponding actuating element 324 indirectly (via the conversion mechanism 336) or directly on the slider 280.

Reference number vacuum cleaner

device body

casing

tube means

First housing side

Second housing side

First extension axis

suction mouth

floor nozzle

suction mouth

area

Saugaggregateinrichtung

Sauggutbehälter

top

bottom

blower motor

fan

housing

Third housing side

Further housing wall

Second extension axis

nozzle connection

First pipe

Second pipe

Third pipe

connection

cover

housing connection

connecting pipe

Ironing handle unit 72 recording room

74 First connection

76 Second connection

78 door

80 containers

82 ground

84 container wall

86 Container lid

88 First Chamber

90 Second Chamber

92 First sump tank connection

94 Second suction tank connection

100 separator device

102 pre-separator

104 filter device

106 receiving basket

240 First locking device

242 Second locking device

244 Third locking device

246 First immersion element

248 First recess

248a First recess

248b First recess

250 First locking element

252 investment area

254 First shot

256 Beveled wall

258 recess

260 leadership

262 rear part device

264 Second immersion element

266 Second recess

268 recess 270 second blocking element

272 investment area

274 Second shot

276 leadership

278 rear part device

280 slides

282 Front end

284 Third immersion element

286 recording

288 recording

290 wall

292 end

294 recess

296 force element

302 first section

304 second section

306 curved area

308 straight area

310 third section

312 area

314 Free space

316 handle element

318a first area

318b second area

320 switches

322 control unit

324 actuator

326 third axis of rotation

328 footbridge

330 first axis of rotation

332 second axis of rotation

334 agility

336 Transfer mechanism Actuator actuator

Claims

claims

A vacuum cleaner, comprising a housing (14), a suction device (32) arranged in the housing (14), a length-adjustable tube device (16) which is arranged on or in the housing (14), a bow-type handle unit (66), which with the

Housing (14) is connected and connected to the tube means (16) and / or at least partially formed by the tube means (16), and a knitting element (280) which is movable relative to the tube means (16) and via which an unlocking the tube device (16) is operable to a length adjustment, characterized in that on the bow grip unit (66) an operating unit (322) is arranged, which acts on the active element (280) and by which a movement of the active element (280) can be actuated.

Vacuum cleaner according to claim 1, characterized in that the active element is a slide (280), which with respect to the tube means (16) is movable and in particular longitudinally displaceable.

Vacuum cleaner according to claim 1 or 2, characterized in that the bow-type handle unit (66) comprises a first section (302) which is arranged on the tube device (16) or arranged in extension of the tube device (16), and a second section (304 ), which is connected to the first portion (302) and the housing (14), wherein the second portion (304) in particular comprises a curvature region (306) and in particular the second portion (304) is designed for gripping with an operator's hand.

4. Vacuum cleaner according to claim 3, characterized in that the operating unit (322) is arranged on the first portion (302).

5. A vacuum cleaner according to claim 4, characterized in that the operating unit (322) on an inner side of the first portion (302) is arranged, which faces the second portion (304).

6. A vacuum cleaner according to any one of claims 3 to 5, characterized in that the bow grip unit (66) comprises a third portion (310) which sits on the housing (14) between the first portion (302) and the second portion (304) in that the operating unit (322) has an actuating element (324; 338) which is positioned on the first section (302) adjacent to the third section (310) or an actuating element (340) of the operating unit (322) on the third Section (310) is positioned.

7. Vacuum cleaner according to one of claims 3 to 6, characterized in that on the second portion (304), a switch (320) is arranged for a suction operation.

8. Vacuum cleaner according to one of the preceding claims, characterized

in that a connecting tube (64) is arranged on the bow-type handle unit (66) between the tube device (16) and the housing (14) for the fluid-effective connection of the tube device (16) to the suction unit device (32).

9. Vacuum cleaner according to one of the preceding claims, characterized

characterized in that the operating unit (322) is a movable

Actuator (324; 338; 340) and in particular a transmission mechanism (336) for transmitting a movement of the actuating element (324; 338) on the active element (280).

10. A vacuum cleaner according to claim 9, characterized in that the actuating element (324; 338) in a transverse direction to a longitudinal displacement direction of the tube means (16) is movable and the transmission mechanism (336) converts a corresponding transverse movement in a longitudinal movement of the active element (280).

11. Vacuum cleaner according to claim 10, characterized in that the transverse mobility of the actuating element (324; 338) is a rotational movement or comprises a rotary component.

12. Vacuum cleaner according to one of claims 9 to 11, characterized in that the actuating element (324) is coupled to the active element (280) via a toggle lever.

13. Vacuum cleaner according to one of claims 9 to 12, characterized in that on the active element (280) about a first axis of rotation (330) rotatable web (328) is hinged, that the web (328) about a second axis of rotation (322) is rotatably articulated to the actuating element (324), and that the actuating element (324) about a third axis of rotation (326) is pivotally connected to the bow-handle unit (66) articulated.

14. Vacuum cleaner according to one of claims 1 to 8, characterized in that an actuating element (340) is fixedly connected to the active element (280).

Vacuum cleaner according to one of the preceding claims, characterized in that the pipe means (16) comprises: at least a first pipe (54), a second pipe (56), a third pipe (58), the first pipe (54) in the second Pipe (56) is guided longitudinally displaceable and the second tube (56) in the third tube (58) is guided longitudinally displaceable; a first locking means (240) acting between the first tube (54) and the second tube (56), wherein in a releasable locking position of the first locking means (240), the first tube (54) on the second tube (56) with respect to a Longitudinal displacement is defined; second locking means (242) acting between the second tube (56) and the third tube (58), wherein in a releasable locking position of the second locking means (242), the second tube (54) on the third tube (58) with respect to a Longitudinal displacement is defined; and third locking means (244) acting on said first tube (54), said second tube (56) and said third tube (58), said third locking means (244) having a releasable locking position in which said second tube (24) 56) on the third tube (58) is longitudinally displaceable and has an unlocking position in which longitudinal displacement of the second tube (56) to the third tube (58) is enabled, the third locking means (244) being transitional is controlled from the locking position to the unlocked position by a position of the first tube (54) relative to the second tube (56) and / or by a force with which the third locking device (244) acts on the second tube (56).

16. A vacuum cleaner according to claim 15, characterized in that the first locking means (240) and the third locking means (244) are coupled together so that in the unlocked position of the third locking means (244) the first locking means (240) is in its locking position.

17. A vacuum cleaner according to claim 15 or 16, characterized in that the first locking means (240) and the second locking means (242) are coupled together so that in the locking position of the third locking means (244) the first locking means (240) and the second Locking device (242) can be brought together from their respective locking position into an unlocked position or together in their respective unlocked position.

18. Vacuum cleaner according to one of claims 15 to 17, characterized in that in the unlocked position of the third locking means (244), the first locking means (240) and the second locking means (242) are decoupled, wherein the second locking means (242) in the locking position can be brought and the position of the second tube (56) to the third tube (58) by the second locking device (242) is detectably adjustable.

19. Vacuum cleaner according to one of claims 15 to 18, characterized in that the first locking device (240) has a first immersion element (246), which is immersed in the locking position in a first recess (248) of the first tube (54) and which for unlocking from the first recess (248) is replaceable.

20. A vacuum cleaner according to claim 19, characterized in that the first tube (54) has a plurality of in a longitudinal direction of the first tube (54) spaced first recesses (248).

21. A vacuum cleaner according to claim 19 or 20, characterized in that the first locking device (240) has a movable first blocking element (250), which in the locking position, a dipping of the first immersion element (246) from the first recess (248) blocks and in a release position releases a dive.

22. A vacuum cleaner according to claim 21, characterized in that on the first blocking element (250) a first receptacle (254) for the first immersion element (246) is arranged, in which the first immersion element (246) is immersed in an unlocked position.

23. A vacuum cleaner according to claim 21 or 22, characterized in that the first blocking element (250) is displaceable parallel to a longitudinal direction of the tube means (16).

24. A vacuum cleaner according to claim 23, characterized by a rear part device (262) and in particular spring device which is endeavor without external force on the first locking element (250) to bring this in a blocking position for the first immersion element (246).

25. Vacuum cleaner according to one of the preceding claims, characterized in that the second locking device (242) has a second immersion element (264) which is immersed in the locking position in a second recess (266) of the second tube (56) and which for unlocking from the second recess (266) can be dipped. Vacuum cleaner according to claim 25, characterized in that the second tube (56) has a plurality of in a longitudinal direction of the second tube (56) spaced second recesses (266).

27. Vacuum cleaner according to claim 25 or 26, characterized in that the second locking device (242) has a movable second locking element (270), which in the locking position, a dipping of the second immersion element (264) from the second recess (266) blocks and in a release position releases a dive.

28. Vacuum cleaner according to one of claims 25 to 27, characterized in that on the second blocking element (250) a second receptacle (274) for the second immersion element (264) is arranged, in which the second immersion element (264) immersed in the unlocked position is.

Vacuum cleaner according to one of claims 25 to 28, characterized in that the second blocking element (270) is displaceable parallel to a longitudinal direction of the tube device (16).

30. A vacuum cleaner according to claim 29, characterized by a rear part device (278) and in particular spring device, which is endeavor without external force on the second locking element (270) to bring this in a blocking position for the second immersion element (264).

31. Vacuum cleaner according to one of claims 15 to 30, characterized in that the third locking device (244) has a third immersing element (284) and the second tube (56) and the third tube (58) corresponding receptacles (286, 288) in that the third immersion element (244) is positioned in the locking position and secures the second tube (56) to the third tube (58).

32. Vacuum cleaner according to claim 31, characterized in that the first tube (54) has a third locking device (244) associated recess (294), in which the third immersion element (284) immersed in the unlocked position of the third locking device (244) and at least from the receptacle (286) of the third tube (58) is immersed.

33. Vacuum cleaner according to claim 31 or 32, characterized in that the first tube (54) in the locking position of the third locking device (244) forms a barrier wall for the third immersion element (284), which surrounds the third immersion element (284) in the receptacles (284). 286, 288) of the second tube (56) and the third tube (58).

Vacuum cleaner according to one of claims 15 to 33, characterized in that a third immersing element (284) of the third locking device (244) or a force-applying element (296) of the third locking device (244) in a longitudinal direction of the tube device (16) between a first immersion element ( 246) of the first locking device (240) and a second immersion element (264) of the second locking device (244) is arranged.

Vacuum cleaner according to one of Claims 15 to 34, characterized by a force-applying element (296) which, in the locking position of the third locking device (244), frictionally secures the second tube (56) to the third tube (58), wherein in the unlocked position the third locking device (244) the frictional fixing is canceled.

36. Vacuum cleaner according to one of claims 15 to 35, characterized in that the active element (280) to a first locking element (250) of the first locking device (240) and a second locking element (270) of the second locking device (242) is coupled.

37. Vacuum cleaner according to claim 36, characterized in that the active element (280) is permanently connected to the second blocking element (270).

38. Vacuum cleaner according to claim 36 or 37, characterized in that the first blocking element (250) is not permanently connected to the active element (280) and a displacement movement in a direction of displacement by the active element (280) is effected by pushing.

39. Vacuum cleaner according to claim 38, characterized in that a

Coupling between the active element (280) and the first locking element (250) in the locking position of the third locking device (244) is present and in the unlocked position of the third locking device (244), the active element (280) from the first locking element (250) is decoupled, and in particular is spaced.

40. Vacuum cleaner according to one of claims 2 to 39, characterized in that the slide (280) is mounted longitudinally displaceable on the tube means (16) and / or the housing (14).

Vacuum cleaner according to one of the preceding claims, characterized in that a nozzle connection (52) for a suction nozzle (26) is arranged on a length-displaceable region of the pipe device (16) or a suction nozzle (26) is arranged, wherein a distance of the nozzle connection (52). or the suction nozzle (26) to a first housing side (18) of the housing (14) is detectably adjustable, wherein the first housing side (18) facing away from a second

Housing side (20) and the bow-handle unit (66) on the second side of the housing (20) is connected thereto.