EP3463025B1 - Vacuum cleaner and method of operating a vacuum cleaner - Google Patents

Vacuum cleaner and method of operating a vacuum cleaner Download PDF

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Publication number
EP3463025B1
EP3463025B1 EP16725862.3A EP16725862A EP3463025B1 EP 3463025 B1 EP3463025 B1 EP 3463025B1 EP 16725862 A EP16725862 A EP 16725862A EP 3463025 B1 EP3463025 B1 EP 3463025B1
Authority
EP
European Patent Office
Prior art keywords
connection
container
suction
sealing
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16725862.3A
Other languages
German (de)
French (fr)
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EP3463025A1 (en
Inventor
Stephan Siegel
Matthias Hermann
Stefan Vetter
Roger Knee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Priority to PCT/EP2016/062194 priority Critical patent/WO2017207024A1/en
Publication of EP3463025A1 publication Critical patent/EP3463025A1/en
Application granted granted Critical
Publication of EP3463025B1 publication Critical patent/EP3463025B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1691Mounting or coupling means for cyclonic chamber or dust receptacles
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00Structural features of suction cleaners
    • A47L5/12Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24Hoses or pipes; Hose or pipe couplings
    • A47L9/242Hose or pipe couplings
    • A47L9/244Hose or pipe couplings for telescopic or extensible hoses or pipes

Description

  • The invention relates to a vacuum cleaner according to the preamble of claim 1.
  • The invention further relates to a method for operating a vacuum cleaner. The GB 2 394 649 A discloses a vacuum cleaner with a recess for receiving a removable dust collection module.
  • In the unpublished international patent application PCT / EP2015 / 054720 dated March 6, 2015 A vacuum cleaner is described, comprising a housing which extends between a first housing side and a second housing side in a first extension axis, a suction unit for generating a suction flow, which is arranged in the housing, a separator device which is arranged in the housing, and a pipe device, which is arranged on or in the housing and extends in a second extension axis at least approximately parallel to the first extension axis, a nozzle connection for a suction nozzle being arranged on the pipe device and the nozzle connection closer to the first housing side than to the second housing side lies, wherein the pipe device along the second extension axis is adjustable in length and a distance of the nozzle connection lockable to the first side of the housing.
  • In the unpublished international patent application PCT / EP2015 / 054766 dated March 6, 2015 describes a separator device for a vacuum cleaner, comprising a pre-separator with a receiving basket, which has a receiving space, with a dirt-laden suction flow being carried through the receiving space during operation of the separator device. The receiving basket is assigned a lid on which at least one pin-shaped action element is seated, which projects into the receiving space when the lid is closed and which can act on dirt in the receiving space when the lid is moved relative to the receiving basket.
  • In the unpublished international patent application PCT / EP2015 / 054749 dated March 6, 2015 A length-adjustable pipe device for a cleaning device is described, comprising at least a first pipe, a second pipe, a third pipe, the first pipe being guided in a longitudinally displaceable manner in the second pipe and the second pipe being guided in a longitudinally displaceable manner in the third pipe, a first locking device, 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 which acts between the second tube and the third tube, wherein in a releasable locking position of the second locking device, the second tube is fixed to the third tube with respect to a longitudinal displacement, and a third locking device, which acts on the first tube, the second tube and the third tube, wherein the third locking device Seal has a releasable locking position, in which the second tube is fixed to the third tube with respect to a longitudinal displacement, and has an unlocking position, in which a longitudinal displacement of the second tube to the third tube is released, the third locking device with respect to the transition from the locking position is controlled in 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.
  • In the unpublished international patent application PCT / EP2015 / 054764 dated March 6, 2015 describes a floor nozzle for a vacuum cleaner, comprising a floor body on which a suction channel with a suction channel wall, a suction channel ceiling and a suction channel space is arranged, the suction channel wall being located on the suction channel ceiling, the suction channel space being formed between the suction channel wall and the suction channel ceiling, the suction channel Suction channel ceiling is open opposite and at least one suction mouth, which is provided for fluid connection with a suction unit, opens into the suction channel space on the suction channel ceiling. At least one rib is arranged on the suction channel ceiling, which is positioned in the suction channel space and which has a region which projects over an end face of the suction channel wall opposite an envelope plane opposite the suction channel ceiling, or which lies at one end on the envelope plane.
  • The EP 2 189 095 B1 discloses a filter assembly for a vacuum cleaner, comprising an outlet grille, a filter element that is attached to the outlet grille, and a sealing element that is detachably formed between the outlet grille and the filter element and that seals a space between the outlet grille and the filter element.
  • In the EP 2 368 473 B1 discloses a vacuum cleaner with a motor protection filter.
  • From the DE 92 07 802 U1 A vacuum cleaner is known in which an exhaust air filter is arranged downstream of a dust filter bag arranged in the dust chamber of the vacuum cleaner.
  • From the EP 1 070 478 B1 a double filter arrangement for a vacuum cleaner is known.
  • From the EP 1 642 521 B1 a dust filter box for a vacuum cleaner is known.
  • From the EP 2 030 554 B1 a vacuum cleaner with a motor fan is known, in whose exhaust air flow a fine filter is arranged.
  • From the WO 2014/176233 A1 a vacuum cleaner is known.
  • From the US 2001/0018865 A1 Another vacuum cleaner is known.
  • From the US 2001/0042442 A1 a filter arrangement for a vacuum cleaner is known.
  • From the CN 2855292 a detachable filter element for a cleaning device is known.
  • The invention has for its object to provide a vacuum cleaner of the type mentioned, in which the suction container can be detached from the device body in a simple manner and which has an effective mode of operation.
  • This object is achieved according to the invention in the aforementioned vacuum cleaner in that a distance between the first connection and the second connection of the device body is greater than a distance between the first suction container connection and the second suction container connection inclusive of the sealing device in a suction flow-free state, that the sealing device is designed to be movable, and that when there is an active suction flow due to a pressure difference at the sealing device, the sealing device, due to its mobility, provides a fluid-tight connection between the first connection of the device body and the first suction container connection and / or between the second connection of the device body and the second suction container connection.
  • In the vacuum cleaner according to the invention, a movable sealing device is provided, which is designed such that when the vacuum cleaner is operated with an effective suction flow, a corresponding first and / or second sealing element of the sealing device bears against a counter element. In a non-suction operation of the vacuum cleaner, the corresponding sealing element is spaced apart from the counter element. As a result, the suction material container can be removed or inserted in a simple manner, without the sealing device being subjected to mechanical loading, and in particular without “grinding along” the sealing device. This prevents wear of the sealing device, which can lead to a leak.
  • So it is easy to use the suction container and easy to solve. Furthermore, the space available is optimally used by a "self-applying" sealing device and, for example, a filter device can be made as large as necessary.
  • In the operation of the vacuum cleaner, a fluid-tight connection of the first connection of the device body with the first suction material container connection or the second connection of the device body with the second suction material container connection is automatically brought about by a pressure difference, which is caused by the suction flow.
  • It is expedient if the first sealing element is arranged on a first holder and the first sealing element is assigned a first counter element which is spaced apart from the first holder, that in a state free of suction flow, the first sealing element is spaced apart from the counter element, and that due to a pressure difference occurring when the suction current acts, the first sealing element moves to and lies against the first counter element and / or that the second sealing element is arranged on a second holder and the second sealing element is assigned a second counter element, which is spaced apart from the second holder, that in a state free of suction flow, the second sealing element is spaced apart from the second counter element, and that by a suction current acting occurring pressure difference the second sealing element moves to the second counter element and rests there. By means of the first holder or the second holder, the first sealing element or the second sealing element can be fixed with respect to a fixed base and then moved in part to this base. As a result, automatic contact to the counter element can be achieved in a suction flow mode, and a gap between the sealing element and its counter element can be achieved without suction flow and in particular also when the suction flow is switched off.
  • In one embodiment, the first holder is arranged on the device body and the first counter element is arranged on the suction material container or it is provided that the first holder is arranged on the suction material container and the first counter element is arranged on the device body and / or the second holder arranged on the device body and the second counter element is arranged on the suction material container or the second holder is arranged on the suction material container and the second counter element is arranged on the device body. This results in a simple structure.
  • It is very particularly advantageous if a guide device for positioning the suction material container on the device body is provided, which is designed such that the suction material container is guided on the device body in a state free of suction flow in such a way that there is no mechanical loading the sealing device takes place and in particular elements of the vacuum cleaner, which can touch the sealing device, are spaced apart from the sealing device. The suction device container can be positioned on the device body in a defined manner by means of the guide device, with the connections of the device body and the suction device container connections being aligned accordingly. The guiding device can also ensure that the suction material container when the sealing device is arranged on the device body, or the device body when the sealing device is arranged on the suction material container, does not drag along the sealing device and can thus lead to wear which impair the sealing effect. In addition, the suction material container can be inserted or released in a simple manner, since the sealing device is not in contact with a counter element.
  • It is advantageous if the guide device comprises a first sub-device which is arranged on the device body and comprises a second sub-device which is arranged on the suction material container, the second sub-device in particular being detachable from the first sub-device. In the case of a guide, the first sub-device and the second sub-device are coupled to one another. This enables safe and easy positioning. In particular, the suction container can then be completely detached from the device body. This makes it easy to empty and clean.
  • In particular, the suction material container is designed as a unit that can be removed from the device body. This makes it easy to empty and clean.
  • It is expedient if the first sealing element and / or the second sealing element is designed as an annular seal. In this way, a fluid-tight connection between the corresponding connections of the device body and the suction material container can be achieved in a simple manner.
  • It is very particularly advantageous if the first sealing element and / or the second sealing element has a movable collar which has a first collar side and a second collar side opposite the first collar side, a pressure difference between the first collar side and the second collar side being caused by an effective suction flow can be generated. If the corresponding first sealing element or the second sealing element is held on a holder, the movable collar can be moved relative to the holder. The movement is caused by a prevailing pressure difference, generated by an effective suction flow. As a result, the corresponding sealing element can be put on after switching on the suction flow, and as long as the suction flow acts, the sealing element remains in place, so that a fluid-tight seal is achieved.
  • In particular, a collar side has a contact surface on a counter element in order to ensure a fluid-tight connection between connections of the device body and the suction material container.
  • It is expedient if a protruding edge element is arranged on the collar and is in particular formed in one piece, the edge element in particular being arranged outside a contact surface of the collar. The edge element, which is particularly circumferential on the collar, prevents the corresponding sealing element from slipping over, which could lead to leaks.
  • In particular, the edge element protrudes toward a collar side on which there is greater pressure when the suction flow is effective. This ensures that the sealing element bears securely, preventing it from being turned inside out.
  • It is favorable if the first sealing element has an annular recess for fixing the first sealing element in a form-fitting manner on a first holder and / or the second sealing element has an annular recess for fixing the second sealing element in a form-fitting manner on a second Has holder. As a result, the corresponding sealing element can be fixed in a form-fitting manner to the holder in a simple manner.
  • It is expedient for the first sealing element and / or the second sealing element to be formed in one piece and, in particular, to be made of a material which is so elastic that a gap to a counter element can be bridged due to a pressure difference generated by a suction flow and the sealing element to the Counter element can be applied. As a result, the suction material container can be inserted or removed from the device body in a simple manner, and an automatic installation of the sealing device can be achieved during operation of the vacuum cleaner.
  • The object mentioned at the outset is further achieved according to the invention in that a movable flap is arranged on the device body and, when the suction material container is released, covers the first connection to the second connection.
  • If the suction container is removed from the device body, there is basically the risk that dirt falls out of the second connection and can fall into the first connection to the suction unit device. This is avoided or largely prevented by the movable flap.
  • It is expedient if the flap is pivotably arranged on the device body. As a result, it can be brought into a covering position, at which it covers the first connection to the second connection, and into a non-covering position, in which the suction material container can be fixed to the device body.
  • It is then advantageous if the flap is spring-loaded and a spring force has to be overcome in order to bring the flap out of a covering position. As a result, the covering position is automatically set by the acting spring force when there is no further force. Especially the cover position is reached automatically when the suction container is removed from the device body.
  • It is then favorable if the flap is arranged on the device body in such a way that the suction container can be fixed on the device body in a non-covering position of the flap. In particular, in the non-covering position, the flap is positioned in the same receiving space in which the suction material container is also received. The fixation of the suction container on the device body then ensures that the flap is in a kind of parking position. When the suction container is removed, the flap then automatically goes into its cover position.
  • It is also expedient if the flap is arranged on the device body in such a way that it can be moved out of the cover position in a cover position by inserting the suction container due to an insertion movement of the suction container. In particular, the cover position is characterized in that the flap is at an acute angle to a height axis on the device body. An insertion movement of the suction material container perpendicular to this height axis then causes the flap to move into a non-covering position (parking position).
  • In one exemplary embodiment, the suction material container has a pre-separator with a receiving basket, which has a receiving space, a dirt-laden suction stream being carried through the receiving space during operation. This makes it easy to separate and collect coarse dirt from the suction flow.
  • It is advantageous if a cover is assigned to the receiving basket, on which at least one pin-shaped action element is seated, which projects into the receiving space when the lid is closed and which can be acted upon by dirt in the receiving space when the lid moves relative to the receiving basket. This allows movement of the lid dirt in the receiving space loosen and thereby easier to remove, so that the suction container can be easily emptied.
  • It is also advantageous if the suction material container comprises a filter separator device with a pre-separator and a filter device for dust arranged downstream of the pre-separator, the filter device for dust in particular being designed as a cartridge filter. This enables effective filtering to be achieved, whereby coarse dirt and then fine dirt can be filtered out in a multi-stage process.
  • Furthermore, it is expedient if the device body has a housing with an openable door, the suction container being able to be removed from the housing via a door opening, in particular the door being connected to the suction container. This means that the suction container can be safely positioned on the device body during operation and it can be removed easily.
  • In one embodiment, the device body has a housing which extends between a first housing side and a second housing side in a first extension axis, and a pipe device is provided which is arranged on or in the housing and is at least approximately parallel in a second extension axis extends to the first extension axis, wherein the suction opening is arranged on the pipe device or on a suction nozzle connected to the pipe device and the suction opening is closer to the first housing side than to the second housing side, and wherein the pipe device is designed to be adjustable in length along the second extension axis and a The distance between the suction mouth and the first side of the housing can be determined. The vacuum cleaner can thus be made compact and has a wide range of uses.
  • In particular, the first connection is arranged closer to the first housing side than the second connection, and the second connection is closer to the second housing side arranged as the first terminal. This results in a compact structure.
  • In particular, when the suction nozzle is fixed to the suction mouth, a distance between the suction nozzle and the first housing side can be determined. This results in extensive adjustment options for an operator.
  • It is advantageous if the pipe device is positioned on an outside of the housing. This results in a compact construction of the vacuum cleaner.
  • It is also advantageous if the pipe device comprises at least one rigid pipe and is designed in particular as a telescopic device with at least two rigid pipes. This results in extensive application options.
  • The result is a compact structure if the pipe device projects beyond the second housing side. A bow handle can then also be formed in a simple manner.
  • In particular, the second housing side has a housing connection for coupling in a suction flow and the pipe device has a connection which is fixed in position in particular with respect to the housing and which is in particular spaced apart from the second housing side, and wherein a connecting tube between the connection of the pipe device and the housing connection is arranged. This results in a compact structure with optimized flow guidance.
  • It is provided that the second connection is fluidly connected to the housing connection or forms the housing connection. This allows a suction flow to be effectively coupled into the device body and from there into the suction container in a simple manner.
  • It is then advantageous if the connecting tube is designed as a bow handle for holding the vacuum cleaner. This results in simple operability with a compact structure.
  • It is further provided that the suction container is positioned closer to the second housing side than to the first housing side with respect to the second suction container connection and is arranged in particular on the second housing side. This results in a simple, compact structure.
  • For the same reason, it is favorable if the suction unit device is positioned closer to the first housing side than to the second housing side and in particular the suction material container and the suction unit device are arranged one above the other along the first extension axis.
  • It is advantageous if there is a flow path on the vacuum cleaner which comprises a first region which is arranged on the tube device with a main flow direction along the second extension axis and which comprises a second region which is arranged on the housing with a main flow direction along the first extension axis against the main flow direction in the first region. The result is a vacuum cleaner with a compact design and multiple uses.
  • According to the invention, a method for operating a vacuum cleaner according to the invention is provided in which, in a suction operation with an active suction flow, the sealing device has a fluid-tight connection between the first connection of the device body and the first suction container connection due to its mobility and due to a pressure difference generated by the suction flow and / or the second connection of the device body and the second suction container connection and the sealing device and a counter element are spaced apart without an effective suction flow.
  • The method according to the invention has the advantages already explained in connection with the vacuum cleaner according to the invention.
  • Further advantageous refinements of the method according to the invention have already been explained in connection with the vacuum cleaner according to the invention.
  • The following description of preferred embodiments serves in conjunction with the drawings to explain the invention in more detail. Show it:
  • Figure 1
    a perspective view of an embodiment of a vacuum cleaner according to the invention, wherein a suction container is removed from a device body;
    Figure 2
    a sectional view of the vacuum cleaner according to Figure 1 ;
    Figure 3
    another sectional view of the vacuum cleaner according to Figure 1 in the area of a suction container;
    Figure 4
    another sectional view of the vacuum cleaner according to Figure 1 in the area of the suction container;
    Figure 5
    an enlarged view of area A according to Figure 2 ;
    Figure 6
    an enlarged view of area B according to Figure 2 ;
    Figure 7
    a perspective view of an embodiment of a sealing element;
    Figure 8
    a plan view of the sealing element according to Figure 7 ;
    Figure 9
    a sectional view taken along the line 9-9 Figure 8 ;
    Figure 10
    a schematic representation of an embodiment of a suction container arranged on a device body, a sealing device being shown with its mobility; and
    Figure 11
    an alternative embodiment with a similar representation as in Figure 10 .
  • An embodiment of a vacuum cleaner according to the invention, which in the Figures 1 to 6 shown and designated there by 10 comprises a device body 12. The device body 12 has a housing 14. A pipe device 16 is arranged on the housing 14.
  • 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 mouth 24. A suction nozzle such as a floor nozzle 26 can be fixed to the pipe device 16 at a lower end. The corresponding suction nozzle such as the floor nozzle 26 has its own suction mouth 28.
  • In the Figures 1 and 2nd the vacuum cleaner 10 is shown in a standing position. In this position, the floor nozzle 26 stands 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 the floor nozzle 26 (and thus the surface 30).
  • A suction unit device 32 and a suction material container 34 are arranged one above the other in the housing 14 in the first extension axis 22.
  • Relative to a flow guidance, the suction unit device 32 is arranged downstream of the suction material container 34. The suction material container 34 is located 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 device 32 is arranged in the housing 14 and is located on the first housing side 18 or is closer with an underside 38 to the first housing side 18 than to the second housing side 20.
  • The suction unit device 32 comprises a blower motor 40 and a blower 42. The blower 42 is driven in rotation by the blower 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 flat.
  • The housing 14 is closed by 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 pipe device 16 extends along a second extension axis 50. The second extension axis 50 is parallel to the first extension axis 22.
  • The pipe device 16 is fixed or mounted on an outside 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 mouth 24.
  • In one embodiment, the nozzle connection is formed on a first tube 54. The first tube 54 is longitudinally displaceable 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 length adjustment.
  • With regard to the design of this telescopic tube device, reference is made to the not previously published international application PCT / EP2015 / 054749 dated March 6, 2015 referenced and fully referred to the disclosure of this application.
  • The pipe device 16 has a further connection 60. This connection 60 is positioned fixedly (immovably) with respect to the housing 14. It projects beyond the second housing side 20 in the direction of the second extension axis 50.
  • A housing connection 62 is arranged on the second housing side 20. A connecting pipe 64 is arranged between the connection 60 of the pipe device 16 and the housing connection 62, which is seated on the third pipe 58. The connecting pipe 64 ensures a fluid-effective connection between the pipe device 16 (and thereby the suction mouth 28) and the suction unit device 32 with the suction material container 34 lying in between.
  • The connecting tube 64 is designed in particular as a rigid tube and is made, for example, from a metallic material or plastic material.
  • The connecting tube 64 is designed as a bow handle 66, on which an operator can hold the vacuum cleaner 10 and can also use it, for example, as a hand-held vacuum cleaner.
  • Between a region 68 of the pipe device 16, with which it projects beyond the first housing side 18, and the connecting pipe 64, a free space 70 is formed, through which a hand or fingers of the operator can plunge when the vacuum cleaner 10 is held on the bow handle 66.
  • In one exemplary embodiment, a cover and in particular a hinged cover is provided on the connecting tube 64, in particular in the vicinity of the connection 60. The cover covers an opening on the connecting pipe 64. The opening of the cover creates a fluid-effective connection between an outside space around the vacuum cleaner 10 and an inside of the connecting pipe 64. By opening the cover, a false air opening can be provided, which can be used, for example, to detach a suction nozzle, which is fixed to the pipe device 16, from the surface 30 when it has sucked onto this surface.
  • Alternatively or additionally, dirt can be removed from the pipe device 16 or the connecting pipe 64 via the opening after the cover has been opened.
  • The nozzle connection 52 and thus the suction mouth 24 is closer to the first housing side 18 than to the second housing side 20. A position of the nozzle connection 52 and thereby a suction nozzle held thereon is adjustable relative to the second housing side 20; a distance between the nozzle connection 52 and the second housing side 20 can be determined via the pipe device 16.
  • It is in this context on the PCT / EP2015 / 054749 referred.
  • The device body 12 comprises a receiving space 72 formed in the housing 14 for the suction material container. The suction container 34 can be inserted releasably into the receiving space 72. The receiving space 72 is formed between the suction unit device 32 and the housing connection 62 on the housing 14.
  • A first connection 74 is arranged on the device body 12. This first connection 74 is in fluid-effective connection with the suction unit device 32 and thereby with the blower 42. The first connection 74 is a connection to the receiving space 72.
  • The first connection 74 has, for example, a circular opening.
  • Suction flow can be applied to the vacuum cleaner 10 via the first connection 74.
  • A second connection 76 is provided spaced apart from the first connection 74. The second connection 76 is fluidly connected to the housing connection 62 or formed by the housing connection 62. The second connection 76 is in fluid-effective connection with the suction mouth 24 or with the nozzle connection 52.
  • Suction current can be applied to the nozzle connection 52 via the second connection 76.
  • The first connection 74 and the second connection 76 are in particular arranged in alignment in the first extension axis 22.
  • The second connection 76 has, for example, a circular cross section.
  • The first connection 74 forms a suction port of the suction unit device 32.
  • The vacuum cleaner 10 has a door 78 which serves to close the receiving space 72. The outer contour of the door 78 is in particular designed such that it has the same shape as the further housing wall 48.
  • It is possible, for example, for the door 78 to be designed as a pivoting door which is pivotably mounted on the device body 12.
  • In one embodiment (compare Figure 1 ) the door 78 is designed to be removable as a whole.
  • The suction container 34 is when it is arranged on the device body 12 ( Figure 2 ), positioned in the receiving space 72 behind the door 78.
  • In principle, it is possible for the door 78 and the suction material container 34 to be separate from one another. For example, the door 78 can then be opened (for example by removing or pivoting it away) and the suction material container 34 can be removed from the receiving space 72 or inserted into it.
  • In the embodiment according to Figure 1 the door 78 and the suction container 34 are connected to one another. If the suction container 34 is correctly inserted into the receiving space 72 (see below), then the door 78 is also closed and the receiving space 72 is covered by the door 78 to the outside or if the door 78 is inserted, the suction container is 34 correctly positioned.
  • The suction container 34 forms a unit which comprises a closed container 80 with connections which are described below. The container 80 has a bottom 82, a container wall 84 which protrudes from the bottom 82 and is connected, for example, in one piece to the bottom 82 and a container lid 86, which in particular removably sits on the container wall 84.
  • With the suction material container 34 positioned on the device body 12, the base 82 faces the first connection 74 and the container cover 86 faces the second connection 76.
  • The container lid 86 is connected to the container wall 84, for example, via a twist lock. Other connection options between the container lid 86 and the container wall 84 are also possible.
  • The container 80 has, for example, an at least approximately cylindrical shape.
  • For example, the suction container 34 is firmly connected to the door 78 via the container wall 84.
  • The suction container 34 has a first chamber 88 and a second chamber 90. A first suction container connection 92 is formed on the bottom 82. This is in particular arranged centrally and has, for example, a circular opening. The first suction container connection 92 serves for fluid communication with the first connection 74 of the device body 12.
  • A second suction container connection 94 is arranged on the container lid 86. 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 container 34 is inserted on the device body 12, are spaced apart from one another in the first extension axis 22.
  • A distance 96 (compare Figure 10 ) between the first suction container connection 92 and the second suction container connection 94 is smaller than a corresponding distance 98 between the first connection 74 and the second connection 76.
  • In particular, the first suction container connection 92 and the second suction container connection 94 are arranged on the suction container 34 in alignment with respect to the first extension axis 22.
  • The first suction container connection 92, when the suction container 34 is inserted on the device body 12, is directly fluid-connected to the first connection 74. The second suction container connection 94 is directly fluid-connected to the second connection 76. The first suction container connection 92 is directly connected to the second chamber 90 in a fluid-active manner. The second suction container connection 94 is directly connected to the first chamber 88 in a fluid-active manner.
  • A suction flow generated by the suction unit device 32 can be passed through the suction container 34 via the suction container connections 92, 94, so that a suction flow can accordingly be applied to the nozzle connection 52.
  • Dirt sucked in via the nozzle connection 52 flows through the pipe device 16 and is coupled into the suction container 34 via the second suction container connection 94. The first suction container connection 92 provides the flow connection to the suction unit device 32 as a source of the negative pressure (the suction flow).
  • A separator device, designated as a whole by 100, is arranged in the suction material container 34. The separator ensures the separation of dirt particles from an air stream.
  • In one exemplary embodiment, the separator device 100 is designed as a filter separator device and is multi-stage in accordance with the chambers 88, 90.
  • The suction container 34 forms a filter box or a filter separator device.
  • A pre-separator 102 for "coarse dust" is arranged in the first chamber 88. A filter device 104 for dust is arranged in the second chamber. The pre-separator 102 is connected upstream of the filter device 104 for (fine) dust in relation to a flow guide for a dirty suction stream. The second suction container connection 94 opens into the pre-separator 102. An outlet of the filter device 104 opens into the first suction container connection 92.
  • The pre-separator 102 comprises a receiving basket 106 (cf. Figure 3 ), which is designed in particular as a mesh basket. The receiving basket 106 is made, for example, of a plastic material. The receiving basket 106 has, for example, the shape of a truncated cone with openings predetermined by the lattice structure. A mesh structure, for example in the form of a fabric, is arranged at the openings.
  • The mesh structure defines, via a mesh size, which dust particles are collected with respect to their size in the receiving basket 106, and which are passed to the filter device 104. Typical values for mesh widths of the mesh structure are in the range between 100 µm and 200 µm. Coarse dust, which is collected by the pre-separator 102, then consists of particles with an average diameter larger than the mesh width and fine dust, which is collected by the filter device 104, consists of particles with an average diameter smaller than the mesh width.
  • The receiving basket 106 has a receiving space. A dirty suction stream is carried out through the receiving space during operation of the vacuum cleaner 10. The mesh of the mesh structure of the mesh basket ensures that it can be flowed through.
  • A cover 108 is assigned to the receiving basket 106. The cover 108 serves to cover the receiving basket 106 towards the second housing side 20. The second suction container connection 94 is arranged on the cover 108.
  • It is fundamentally possible for the lid 108 to form the container lid 86.
  • In an alternative embodiment, lid 108 and container lid 86 are separate.
  • A pin-shaped action element 110 sits (at least) on the cover 108. When the cover 108 is closed, the action element 110 is immersed in the receiving space of the receiving basket 106.
  • The acting element 110 is designed such that when the lid 108 is opened, it is moved through the receiving space of the receiving basket. This "loosens" dirt in the receiving space.
  • With regard to a corresponding separator device with a pre-separator, reference is made to the international application PCT / EP2015 / 054766 dated March 6, 2015 . The separator device or the filter box (suction material container) 84 is basically of the same design as described there. On the PCT / EP2015 / 054766 full reference is made.
  • In the second chamber 90, which lies between the second suction 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 112, which is aligned along the first extension axis 82 and is, for example, tubular with filter pleats. The filter folds sit on a bottom 114, over which in turn the filter device 104 on the container 80 and in particular is fixed to the bottom 82 and / or the container wall 84, for example via a bayonet connection.
  • An opening in the filter element 102, which is surrounded by filter material of the filter folds, and an opening in the bottom 114 corresponds to the first suction container connection 92. For example, the first suction container connection 92 is formed on the floor 114 or 82 via the filter device 104.
  • The interior of the filter element 112 is closed towards the pre-separator 102. Spaces between filter folds are open to the pre-separator 102.
  • A suction flow, which is coupled out on the device body 12 via the first connection 74, enters the suction material container 34 via the first suction material container connection 92. It enters the filter device 104 and enters there between filter folds via an end face of the filter element 112. The suction flow flows through the filter material of the filter folds, whereby dust particles do not penetrate the filter element 112, that is to say essentially remain attached to the filter element 112.
  • A suction flow is available at the first suction container connection 92, the dust load of which is considerably less dust-laden than the suction flow which is coupled into the second suction container connection 94.
  • When the container 80 is rotated, engagement means act on the filter folds of the filter element 112 and "shake" them, as a result of which adhering dust particles are released. This can reduce dust pollution in the environment when the suction material container 34 is emptied. In this context, reference is made to the PCT / EP2015 / 054766 .
  • If the suction container 34 is removed from the device body 12, then after opening the container cover 86, the receiving basket 106 can be removed and emptied. If required, the filter device 104 can be removed and exchanged or shaken out, the dust being able to be emptied out of the filter device 104 via an end face.
  • The suction container 34 (the filter box) is acceptable from the device body 12 in order to be able to empty the suction container 34 and, if necessary, to be able to clean the suction container 34 or to replace the filter device 104.
  • For the operation of the vacuum cleaner 10, it is provided that there is a fluid-tight connection between the first connection 74 and the first suction container connection 92 and / or between the second connection 76 and the second suction container connection 94. For this purpose, a sealing device is provided, which is designated as a whole by 116.
  • In one exemplary embodiment, the sealing device 116 comprises a first sealing element 118, which is assigned to the first suction container connection 92 and the first connection 74, and a second sealing element 120, which is assigned to the second suction container connection 94 and the second connection 76.
  • An exemplary embodiment of a sealing element, for example the first sealing element 118, is shown in FIGS Figures 7 to 9 shown.
  • The corresponding (first) sealing element 118 is designed as a round seal. It comprises a holding body 122, on which a collar 124 sits. The holding body 122 has an annular shape. In particular, it has the shape of a circular ring. It surrounds an annular opening 126. The holding body 122 has a recess 128 toward the annular opening 126. The recess 128 has the shape of an annular groove running around the holding body 122.
  • Via the recess 128, the holding body 122 can be placed on a corresponding holder for the (first) sealing element 118, a corresponding flange area of the holder being able to dip into the recess 128 and thereby achieving a positive fit. This is described in more detail below.
  • The collar 124 follows the holding body 122 in a height direction 130 and is in particular connected in one piece to the holding body. The height direction 130 is in particular an axis of symmetry of the ring opening 126.
  • The collar 124 has a first collar side 132 and an opposite second collar side 134. The first collar side 132 and the second collar side 134 are in particular aligned parallel to one another.
  • The collar 124 has a first region 136 which surrounds the ring opening 126 and is connected in one piece to the holding body 122 in particular. The first collar side 132 and the second collar side 134 are formed on a second region 138 which is oriented transversely to the holding body 122 and the second region 136 and is oriented transversely to the height direction 130.
  • The orientation of the second region 138 with the first collar side 132 and the second collar side 134 is in particular at least approximately perpendicular to the height direction 130 or is at a small acute angle of, for example, approximately 5 ° to 15 ° to the height direction 130.
  • The second area 138 forms a pressure application surface, a differential pressure being able to act between the first collar side 132 and the second collar side 134.
  • This differential pressure leads to a deformation of the (first) sealing element 118. The sealing element 118 is movable in itself. The mobility takes place over the collar 124; with an effective pressure difference between the first collar side 132 and the second collar side 134, the collar 124 is movable in a direction 140 in particular with respect to the holding body 122 or the recess 128. The direction 140 is a distance direction between the first collar side 132 and the second collar side 134 towards the second collar side 134.
  • The sealing element 118 is designed such that a gap between the first connection 74 and the first suction container connection 92, when the suction container 34 is inserted in the receiving space 72 and the vacuum cleaner 10 is not in operation, under the effect of a suction flow by an “internal” Movement of the first sealing element 118 is bridged.
  • The suction flow creates a pressure difference between the first collar side 132 and the second collar side 134, which moves the collar 124 in the direction 140. As a result, the first sealing element 118, which in one exemplary embodiment is fixed to the first connection 74, is moved to the first suction container connection 92 as a counter element for the first sealing element 118. The gap existing due to the different distances 98, 96 is bridged under the effect of the suction flow and the corresponding pressure difference, and the first sealing element 118 ensures a fluid-tight connection of the first connection 74 to the first suction container connection 92.
  • The first sealing element 118 is made of a corresponding plastic material, such as EPDM (ethylene-propylene-diene), which allows mobility and, with an active suction flow, a tight fit against the counter element.
  • In one exemplary embodiment, in order to enable movement in the direction 140, a greater pressure acts on the first collar side 132 in the suction flow than on the second collar side 134 in order to correspondingly the pressure difference to create. For example, the ambient pressure acts on the first collar side 132 and the suction current vacuum on the second collar side 134.
  • In one embodiment, a protruding edge element 142 is arranged on the collar, which is circumferential. The edge element 142 protrudes from the corresponding collar side.
  • In one embodiment, the edge element 142 protrudes at least approximately parallel to the height direction 130 from the second collar side 134. As a result, a space 144 is formed between the first region 136 and the edge element 142 delimited by the first collar side 132.
  • The peripheral edge element 142 protrudes in particular from that collar side, namely the second collar side 134, which forms a contact surface 146 against a counter element. It is in the direction of that collar side, namely the first collar side 132, on which the greater pressure lies during the prevailing suction flow.
  • The edge element 142 is formed outside the contact surface 146 and protrudes from the first collar side 132 as the surface on which the higher pressure prevails during operation. The edge element 142 prevents the collar 124 from being turned inside out when there is a pressure difference between the first collar side 132 and the second collar side 134. This ensures that the collar 124 bears securely against a counter element.
  • In one embodiment, a first holder for the first sealing element 118 is formed on the first connection 74. The first connection 74 has a circumferential ring wall 148 with a flange 150 which projects transversely to the ring wall (cf. Figure 6 ).
  • This flange 150 is immersed in the corresponding recess 128 of the first sealing element 118. This makes a first holder 152 for the first sealing element 118 is formed, via which the first sealing element 118 is held in a form-fitting manner on the first connection 74.
  • The collar 124 of the first sealing element 118 extends parallel to the first extension axis 22 into the receiving space 72.
  • The collar 124 of the first sealing element 118 is arranged such that the first collar side 132 is exposed to the external air pressure. The second collar side 134 is acted upon by the suction flow if the suction unit device 32 is operated. This means that during operation of the suction unit device 32, a pressure difference acts on the collar 124 between the first collar side 132 and the second collar side 134, which moves the movable first sealing element 118 over the collar 124 in the direction 140. This causes the second collar side 134 to bear against a counter element 154. The counter element 154 (compare in particular Figure 6 ) is formed on the suction material container 34 in the region of the first suction material container connection 92 and in particular is formed by a wall 156 of the first suction material container connection 92.
  • If there is a suction flow, then the collar 124 moves correspondingly with the second collar side 134 of the collar 124 bearing against the counter element 154 and a fluid-tight connection is established between the first connection 74 and the first suction container connection 92.
  • Basically, the second sealing element 120 is of the same design as the first sealing element 118. It is connected via a second holder 158 ( Figure 5 ), which is formed in particular by a wall 160 of the second connection 76, fixed to the second connection 76. The second sealing element has (the same reference numerals have been chosen as for the first sealing element 118) has the first collar side 132 and the second collar side 134. The first collar side 132 is exposed to air pressure and the suction current can then act on the second collar side 134. The prevailing pressure difference causes a movement in a direction 162 which is a direction opposite to direction 140. As a result, a corresponding contact surface 146 of the second sealing element can bear against a counter element 164 of the suction material container 34, this counter element 164 being formed in particular by a wall 166 of the second suction material container connection 94.
  • The vacuum cleaner 10 has a guide device 168 for the guided positioning of the suction material container 34 on the device body 12 in the receiving space 72. The guide device 168 is designed in such a way that when the suction material container 134 is inserted or when the suction material container 34 is removed and the vacuum cleaner 10 is not in a suction flow state, there is no mechanical contact between the sealing device 116 and the corresponding counter elements 154, 164. This prevents wear and tear or damage to the sealing device 116 which impairs the tightness.
  • In one exemplary embodiment, the guide device 168 comprises a first sub-device 170, which is arranged on the device body, and a second sub-device 172, which is arranged on the suction material container 34.
  • The second sub-device 172 can be inserted into the first sub-device 170, for example in the manner of a drawer slide.
  • In Figure 10 the conditions when inserting (indicated by reference number 174) or when loosening (indicated by reference number 176) the suction material container 34 on or from the device body 12 are indicated schematically. If the first sub-device 170 engages the second sub-device 172, in particular if these can be completely decoupled from one another in the solution, then the suction material container is guided in the receiving space 72 and is guided in such a way that the first connection 74 with the first sealing element 118 and the first suction container connection 92 cannot touch and the second connection 76 with the second Sealing element 120 and the second suction container connection 94 cannot touch each other if no suction flow acts.
  • The guide device 168 is in particular designed in such a way that the first sub-device 170 and the second sub-device are in engagement with one another if mechanical contact of the sealing device 116 is fundamentally possible, and thus a gap between the sealing device 116 and its corresponding counter elements 154 (first counter element) and 164 (second counter element) is ensured.
  • Accordingly, when the suction material container 34 is led out of the receiving space 72, mechanical action on the sealing device 116 can be avoided.
  • When the suction material container 34 is inserted and a suction flow operation takes place, the collar 124 of the first sealing element 118 moves towards its first counter element 154 and bears against it due to the pressure difference acting over the collar sides 132, 134. A fluid-tight connection of the suction material container 34 is thereby achieved in the area of the first connection 74 of the device body 12.
  • In the same way, the collar 124 of the second sealing element 120 moves in the direction 162 towards the second counter element 164 and lies there due to the prevailing pressure difference between the first collar side 132 and the second collar side 134. A fluid-tight connection is thereby achieved in the area of the second connection 76 of the device body 12.
  • In the vacuum-free state of the vacuum cleaner 10, the distance 98 between the first connection 74 and the second connection 76 including the sealing device 116 with the first sealing element 118 arranged at the first connection 74 and the second sealing element 120 arranged at the second connection 76 is greater than the distance 96 between the first suction container connection 92 and the second suction container connection 94. A gap 178 and 180 is formed between the corresponding sealing elements 118, 120 and their counter elements 154 and 164, respectively.
  • In the suction flow mode of the vacuum cleaner 10, a pressure difference is generated on the corresponding collar 124 of the first sealing element 118 and of the second sealing element 120, which pressure difference is caused by the negative pressure applied to the suction flow. This pressure difference initially causes the collar 124 to move until its second collar side 134 abuts the corresponding counter element 154 or 164, where it provides a seal and a fluid-tight connection is achieved.
  • A dust-laden suction stream, which enters the second suction container connection 94 via the second connection 76, is thereby transferred "fluid-tight" from the device body 12 to the suction container 34.
  • Furthermore, the low-dust suction flow, which is coupled into the suction container 34 via the first connection 74, is transferred to the first suction container connection 92 in a fluid-tight manner.
  • In the exemplary embodiment described above, the first holder 152 and the second holder 158 for the sealing device 116 are arranged on the device body.
  • In principle, a kinematic reversal is also possible, as in Figure 11 indicated. In this case, sealing elements are arranged on the suction container connections 94, 92, the sealing elements being arranged and designed such that, under the action of a suction current, the corresponding collar bears against a counter element which is formed at the first connection 74 and the second connection 76 is.
  • In this case, a first sealing element 182 arranged on the first suction container connection 92 moves towards the first connection 74 and a second sealing element 184 arranged on the second suction container connection 94 moves towards the second connection 76.
  • In this embodiment too, a distance 186 between the first connection 74 and the second connection 76 is greater than a distance 188 between the first suction container connection 92 and the second suction container connection 94, including the sealing device with the first sealing element 182 and the second sealing element 184 .
  • Mixed forms are also possible in which one holder is formed on the device body 12 and the other holder is formed on the suction material container 34.
  • In principle, it is also possible for an additional sealing element to be provided only at one connection and in particular the second connection 76.
  • A movable flap 190 is arranged on the device body 12 in the receiving space 72. This flap 190 covers the first connection 74 toward the second connection 76 when the suction material container 34 is removed from the device body 12.
  • In principle, when the suction material container 34 is removed, dust can “trickle” out of the second connection 76 in the direction of the first connection 74. The flap 190 largely prevents dirt from entering the suction unit device 32 here.
  • In one exemplary embodiment, the flap 190 is pivotably mounted opposite the door 78 on an inner side of the further housing wall 48.
  • It can also be provided that the flap 190 is pivotably mounted on a wall 94 via a swivel joint 192, on which the first connection 74 is formed.
  • A pivot axis 196 is in particular oriented transversely and preferably perpendicular to the first extension axis 22.
  • The swivel joint 192 is spring-loaded via a spring 198. The spring 198 is arranged and designed in such a way that it strives to open the flap 190 in a covering position 200 (in broken lines in FIG Figure 1 shown) in which the first connection 74 is covered. In order to move the flap 190 out of the covering position 200 and, for example, to bring it into a “parking position” 202, the force of the spring 198 must be overcome.
  • Parking position 202 ( Figure 1 ) is such that the flap is at least approximately parallel to an inside of the further housing wall 48 and is positioned in the receiving space 72 and the suction material container 34 is positioned on the device body 12 with a corresponding fluid connection between the first connection 74 and the first Suction container connection 92 and with a fluid connection between the second connection 76 and the second suction container connection 94.
  • The spring 198 is also designed such that when the suction material container 34 is inserted in the direction 174 (cf. Figure 10 ) the corresponding force is exerted to bring the flap 190 from the cover position 200 into the parking position 202.
  • In particular, in the cover position 200, the flap 190 is positioned at a finite acute angle to the first extension axis 22, so that a corresponding force can be exerted by the container wall 94 to open the flap 190 into the parking position 202.
  • When the suction container is inserted into the receiving space 92, the flap is moved from the cover position 200 into the parking position 202 by the insertion movement.
  • When the suction container 34 is removed, the spring 198 effects an automatic transition of the flap 190 from the parking position 202 into the covering position 200.
  • The vacuum cleaner 10 works as follows:
    In suction mode, the suction material container 34 is inserted into the receiving space 72 on the device body 12. A suction flow acts. The active suction flow initially causes the sealing device 116 with the first sealing element 118 and the second sealing element 120 to come into contact with the corresponding counter element 154 or 164 by moving the collar 124 of the corresponding sealing element 118 or 120. A fluid-tight seal is thereby achieved . The sealing device 116 is self-applying.
  • When the suction unit device 32 is switched off, the corresponding collar 124 moves back and there is no contact with the corresponding counter element 154 or 164.
  • The suction container can then be removed from the device body 12 in a guided manner via the guide device 168 without the sealing device 116 being subjected to a mechanical action on the suction container 32; the distance 96 is smaller than the distance 98.
  • Correspondingly, when the suction material container 34 is inserted, it is ensured via the guide device 168 that the sealing device 116 is not subjected to any mechanical action.
  • There is a gap 178 or 180 between the sealing device 116 and the suction material container 34.
  • There is an optimal use of space on the device body 12.
  • In the operation of the vacuum cleaner, this gap 178 or 180 is bridged by the movement of the sealing device 116 with its movable collar 124 and there is a tight fit.
  • This results in a simple insertion and detachment of the suction material container 34, the risk of damage to the sealing device 116 being minimized by mechanical action. A tight connection is nevertheless achieved during operation.
  • The flap 190 automatically covers the first connection 74 towards the second connection 76 when the suction material container 34 is removed. Dust remaining in the connecting pipe 64, which can trickle out of the second connection 76 in the direction of the first connection 74, is thereby prevented from penetrating into the first connection 74 to the suction unit device 32.
  • If the suction container 34 is inserted on the device body 12 in the receiving space 72, then the flap 190 automatically folds from the cover position 200 into the parking position 202 due to the insertion movement, and the suction container 34 can be on the device body 12 with aligned correspondence between the first Reach connection 74 and the first suction container connection 92 and the second connection 76 and the second suction container connection 94.
  • During operation of the vacuum cleaner 10, dust is sucked in via a suction nozzle at the nozzle connection 52, a corresponding suction flow in the direction of the second extension axis 50 having a main flow direction. A flow reversal and coupling takes place at the connecting pipe 64 into the housing 14 and thereby coupling into the suction container 34.
  • For the corresponding functioning of such a vacuum cleaner, reference is made to the unpublished international patent application PCT / EP2015 / 054720 dated March 6, 2015 referred to, to which express reference is made.
  • Furthermore, the PCT / EP2015 / 054720 with regard to a possible formation of a floor nozzle.
  • With regard to another possibility of training a floor nozzle, the international application PCT / EP2015 / 054764 dated March 6, 2015 referred to, to which express reference is made.
  • Reference list
  • 10th
    vacuum cleaner
    12th
    Device body
    14
    casing
    16
    Pipe device
    18th
    First case side
    20th
    Second side of the case
    22
    First axis of extension
    24th
    Suction mouth
    26
    Floor nozzle
    28
    Suction mouth
    30th
    surface
    32
    Suction unit device
    34
    Suction container
    36
    Top
    38
    bottom
    40
    Blower motor
    42
    fan
    44
    Housing wall
    46
    Third side of the case
    48
    Further housing wall
    50
    Second axis of extension
    52
    Nozzle connection
    54
    First pipe
    56
    Second pipe
    58
    Third tube
    60
    connection
    62
    Housing connection
    64
    Connecting pipe
    66
    Bow handle
    68
    Area
    70
    free space
    72
    Recording room
    74
    First connection
    76
    Second connection
    78
    door
    80
    container
    82
    ground
    84
    Container wall
    86
    Container lid
    88
    First chamber
    90
    Second chamber
    92
    First suction container connection
    94
    Second suction container connection
    96
    distance
    98
    distance
    100
    Separator device
    102
    Pre-separator
    104
    Filter device
    106
    Basket
    108
    cover
    110
    Action element
    112
    Filter element
    114
    ground
    116
    Sealing device
    118
    First sealing element
    120
    Second sealing element
    122
    Holding body
    124
    collar
    126
    Ring opening
    128
    Recess
    130
    Height direction
    132
    First collar side
    134
    Second collar side
    136
    First area
    138
    Second area
    140
    direction
    142
    Edge element
    144
    free space
    146
    Contact surface
    148
    Ring wall
    150
    flange
    152
    First holder
    154
    First counter element
    156
    Wall
    158
    Second holder
    160
    Wall
    162
    direction
    164
    Second counter element
    166
    Wall
    168
    Management facility
    170
    First subunit
    172
    Second subunit
    174
    "Deploy"
    176
    "To solve"
    178
    gap
    180
    gap
    182
    First sealing element
    184
    Second sealing element
    186
    distance
    188
    distance
    190
    flap
    192
    Swivel joint
    194
    Wall
    196
    Swivel axis
    198
    feather
    200
    Cover position
    202
    Parking position

Claims (15)

  1. A vacuum cleaner, comprising an appliance body (12), a suction assembly device (32), for generating a suction flow, arranged on the appliance body (12), a first connection (74), arranged on the appliance body (12) and fluidically connected to the suction assembly device (32), a second connection (76), arranged on the appliance body (12) at a distance from the first connection (74) and fluidically connected to a suction mouth (24; 28), a vacuumed material container (34), detachably fixed on the apparatus body (12), and a first vacuumed material container connection (92), corresponding to the first connection (74) of the appliance body (12), and a second vacuumed material container connection (94), corresponding to the second connection (76) of the appliance body (12), wherein there is provided a sealing device (116) which comprises a first sealing element (118), associated with the first connection (74) of the appliance body (12) and the first vacuumed material container connection (92), and/or a second sealing element (120), associated with the second connection (76) of the appliance body (12) and the second vacuumed material container connection (94), characterized in that a spacing (98) between the first connection (74) and the second connection (76) of the appliance body (12) is greater than a spacing (96) between the first vacuumed material container connection (92) and the second vacuumed material container connection (94) including the sealing device (116) in a suction-flow-free state, in that the sealing device (116) is movable, and in that in the event of an active suction flow, the mobility of the sealing device (116) produces a fluid-tight connection between the first connection (74) of the appliance body (12) and the first vacuumed material container connection (92) and/or between the second connection (76) of the appliance body (12) and the second vacuumed material container connection (94) through a pressure difference at the sealing device (116).
  2. A vacuum cleaner according to claim 1, characterized in that the first sealing element (118) is arranged on a first holder (152) and a first counter element (164) is associated with the first sealing element (118), which first counter element (164) is at a distance from the first holder (152), in that the first sealing element (118) is at a distance from the counter element (154) in a suction-flow-free state, and in that through a pressure difference arising in the event of an active suction flow, the first sealing element (118) moves towards the first counter element (154) and contacts thereagainst; and/or
    in that the second sealing element (120) is arranged on a second holder (158) and a second counter element (164) is associated with the second sealing element (120), which second counter element (164) is at a distance from the second holder (158), in that the second sealing element (120) is at a distance from the second counter element (164) in a suction-flow-free state, and in that through a pressure difference arising in the event of an active suction flow, the second sealing element (120) moves towards the second counter element (164) and contacts thereagainst, and in particular
    in that the first holder (152) is arranged on the appliance body (12) and the first counter element (154) is arranged on the vacuumed material container (34) or in that the first holder is arranged on the vacuumed material container (34) and the first counter element is arranged on the appliance body (12); and/or
    in that the second holder (158) is arranged on the appliance body (12) and the second counter element (164) is arranged on the vacuumed material container (34) or in that the second holder is arranged on the vacuumed material container (34) and the second counter element is arranged on the appliance body (12).
  3. A vacuum cleaner according to any one of the preceding claims, characterized by a guide device (168) for positioning the vacuumed material container (34) on the appliance body (12), which guide device (168) is such that in a suction-flow-free state the vacuumed material container (34) is guided on the appliance body (12) in such a manner that no mechanical action upon the sealing device (116) takes place and in particular vacuum-cleaner elements able to contact the sealing device (116) are at a distance from the sealing device (116), and in particular
    in that the guide device (168) comprises a first partial device (170), arranged on the appliance body (12), and comprises a second partial device (172), arranged on the vacuumed material container (34), wherein in particular the second partial device (172) is detachable from the first partial device (170).
  4. A vacuum cleaner according to any one of the preceding claims, characterized in that the vacuumed material container (34) is in the form of a unit removable from the appliance body (12).
  5. A vacuum cleaner according to any one of the preceding claims, characterized by at least one of the following:
    the first sealing element (118) and/or the second sealing element (120) is/are in the form of an annular seal;
    the first sealing element (118) and/or the second sealing element (120) has/have a movable collar (124) which has a first collar side (132) and a second collar side (134) opposite the first collar side (132), wherein a pressure difference between the first collar side (132) and the second collar side (134) can be generated through an active suction flow, and in particular
    a collar side (134) has a contact surface (146) against a counter element (154; 164), and in particular
    a projecting edge element (142) is arranged on the collar (124) and in particular is integrally formed, wherein in particular the edge element (142) is arranged exterior to a contact surface (146) of the collar (134), and in particular
    the edge element (142) projects towards a collar side (132) at which there prevails a greater pressure in the event of an active suction flow.
  6. A vacuum cleaner according to any one of the preceding claims, characterized by at least one of the following:
    the first sealing element (118) has an annular recess (128) for form-locked fixing of the first sealing element (118) on a first holder (152) and/or the second sealing element (120) has an annular recess (128) for form locked fixing of the second sealing element (120) on a second holder (158);
    the first sealing element (118) and/or the second sealing element (120) is/are one-piece and in particular manufactured from a material which is elastic to an extent that a gap (178; 180) with respect to a counter element can be bridged owing to a pressure difference (154; 164) generated by a suction flow and the sealing element (118; 120) can be placed against the counter element (154; 164).
  7. A vacuum cleaner according to any one of the preceding claims, characterized in that a movable flap (190) is arranged on the appliance body (12) and covers the first connection (74) towards the second connection (76) when the vacuumed material container (34) is detached, and in particular
    in that the flap (190) is pivotably arranged on the appliance body (12), and in particular in that the flap (190) is spring-loaded and a spring force must be overcome in order to bring the flap (190) from a covering position, and in particular
    in that the flap (190) is arranged on the appliance body (12) in such a manner that the vacuumed material container (34) is fixable on the appliance body (12) in a non-covering position (202) of the flap (190), and in particular
    in that the flap (190) is arranged on the appliance body (12) in such a manner that in a covering position (200) it is movable from the covering position (200) through the insertion of the vacuumed material container (34) owing to an insertion motion of the vacuumed material container (34).
  8. A vacuum cleaner according to any one of the preceding claims, characterized in that the vacuumed material container (34) comprises a pre-separator (102) with a receiving basket (106) which has a receiving chamber, wherein in operation a dirt-laden suction flow is passed through the receiving chamber, and in particular
    in that associated with the receiving basket (106) there is a lid (108) on which there is located at least one pin-shaped active element (110) which projects into the receiving chamber when the lid (108) is closed and which can act upon dirt in the receiving chamber upon motion of the lid (108) relative to the receiving basket (106).
  9. A vacuum cleaner according to any one of the preceding claims, characterized in that the vacuumed material container (34) comprises a filter separator device, with a pre-separator (102), and a filter device (104), arranged downstream of the pre-separator, for dust, wherein in particular the filter device (104) for dust is in the form of a cartridge filter.
  10. A vacuum cleaner according to any one of the preceding claims, characterized in that the appliance body (12) has a housing (14) with an openable door (78), wherein the vacuumed material container (34) is removable from the housing (14) via a door opening, wherein in particular the door (78) is connected to the vacuumed material container (34).
  11. A vacuum cleaner according to any one of the preceding claims, characterized in that the appliance body (12) has a housing (14) which extends between a first housing side (18) and a second housing side (20) in a first extension axis (22), and characterised by a pipe device (16) which is arranged on or in the housing (14) and which extends in a second extension axis (50) at least approximately parallel to the first extension axis (22), wherein the suction mouth (24; 26) is arranged at the pipe device (16) or at a suction nozzle (26) connected to the pipe device (16) and the suction mouth (24; 26) lies closer to the first housing side (18) than to the second housing side (20), and in that the pipe device (16) is longitudinally adjustable along the second extension axis (50) and a spacing of the suction mouth (24; 26) from the first housing side (18) is ascertainable and adjustable, and in particular
    in that the first connection (74) is arranged closer to the first housing side (18) than the second connection (76), and in that the second connection (76) is arranged closer to the second housing side (20) than the first connection (74), and in particular
    in that in the case of a suction nozzle (26) fixed at the suction mouth (24), a spacing of the suction nozzle (26) from the first housing side (18) is ascertainable and adjustable, and in particular
    in that the pipe device (16) is positioned at an outer side of the housing (14), and in particular in that the pipe device (16) comprises at least one rigid pipe (54; 56; 58) and in particular is in the form of a telescopic device with at least two rigid pipes (54, 56, 58), and in particular in that the pipe device (16) projects beyond the second housing side (20).
  12. A vacuum cleaner according to claim 11, characterized in that the second housing side (20) has a housing connection (62) for coupling in a suction flow and the pipe device (16) has a connection (60) which is fixed in its position, in particular with regard to the housing (14), and which is in particular at a distance from the second housing side (20), and wherein a connecting pipe (64) is arranged between the connection (60) of the pipe device (16) and the housing connection (62), and in particular
    in that the second connection (76) is fluidically connected to the housing connection (62) or forms the housing connection, and in particular
    in that the connecting pipe (64) is in the form of a bow-type handle (66) to hold the vacuum cleaner.
  13. A vacuum cleaner according to claim 11 or 12, characterized in that the vacuumed material container (34) is positioned closer to the second housing side (20) than to the first housing side (18) with regard to the second vacuumed material container connection (94), and in particular is arranged at the second housing side (20), and/or
    in that the suction unit device (32) is positioned closer to the first housing side (18) than to the second housing side (20) and in particular in that the vacuumed material container (34) and the suction assembly device (32) are arranged above one another along the first extension axis (22).
  14. A vacuum cleaner according to any one of claims 11 to 13, characterised by a flow path which comprises a first region, arranged in the pipe device (16) with a main flow direction along the second extension axis (50), and which comprises a second region, arranged in the housing (14) with a main flow direction along the first extension axis (22) counter to the main flow direction in the first region.
  15. A method of operating a vacuum cleaner according to any one of the preceding claims, in which in a suction operation with an active suction flow, the sealing device (116) produces, owing to its mobility and owing to a pressure difference generated by the suction flow, a fluid-tight connection between the first connection (74) of the appliance body (12) and the first vacuumed material container connection (92) and/or the second connection (76) of the appliance body (12) and the second vacuumed material container connection (94), and in the absence of active suction flow there is spacing apart of the sealing device (116) and a counter element (154; 164).
EP16725862.3A 2016-05-30 2016-05-30 Vacuum cleaner and method of operating a vacuum cleaner Active EP3463025B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/062194 WO2017207024A1 (en) 2016-05-30 2016-05-30 Vacuum cleaner and method for operating a vacuum cleaner

Publications (2)

Publication Number Publication Date
EP3463025A1 EP3463025A1 (en) 2019-04-10
EP3463025B1 true EP3463025B1 (en) 2020-04-22

Family

ID=56087278

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16725862.3A Active EP3463025B1 (en) 2016-05-30 2016-05-30 Vacuum cleaner and method of operating a vacuum cleaner
EP16753401.5A Pending EP3463023A1 (en) 2016-05-30 2016-08-18 Vacuum cleaner having operating unit for a length-adjustable tube device

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP16753401.5A Pending EP3463023A1 (en) 2016-05-30 2016-08-18 Vacuum cleaner having operating unit for a length-adjustable tube device

Country Status (3)

Country Link
EP (2) EP3463025B1 (en)
CN (2) CN109310253A (en)
WO (2) WO2017207024A1 (en)

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Also Published As

Publication number Publication date
EP3463023A1 (en) 2019-04-10
WO2017207024A1 (en) 2017-12-07
CN109310253A (en) 2019-02-05
WO2017207071A1 (en) 2017-12-07
CN109310250A (en) 2019-02-05
EP3463025A1 (en) 2019-04-10

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