VACUUM CLEANER ASSEMBLY

Abstract

A vacuum cleaner assembly and vacuum cleaner with a vacuum cleaner assembly, including a suction device with a basic body with a first end with at least one suction inlet for connection with a suction tube and/or suction hose of the vacuum cleaner. Furthermore, the basic body divides at a second end into two substantially tubular suction ducts, each having a suction intake, wherein one suction arm each is associated with the suction intakes, and wherein the suction arms are provided pivotable about the associated suction duct.

Claims

1. A vacuum cleaner assembly comprising: at least one suction device with at least one basic body configured hollow at least in sections; with at least one first end with at least one suction inlet, in particular for connection with at least one suction tube and/or suction hose of a vacuum cleaner; the basic body divides at a second end into at least two substantially tubular suction ducts, each having at least one suction intake; wherein at least one suction arm is associated with the at least two suction intakes; and wherein at least one suction arm is provided pivotable about the associated suction duct.

2. The vacuum cleaner assembly according to claim 1, wherein at least one suction arm is received on at least one suction duct.

3. The vacuum cleaner assembly according to claim 1, wherein at least one suction duct is a part of at least one suction arm.

4. The vacuum cleaner assembly according to claim 1, wherein at least one suction arm comprises at least one connecting device for accommodation on a suction duct, which includes in particular at least one connecting sleeve and at least one pivoting sleeve rotatable thereto, and/or at least one connecting plate with at least one aperture and at least one connection member, to pivotally take up the suction arm at the aperture of the connecting plate.

5. The vacuum cleaner assembly according to claim 1, wherein at least one suction arm is retained in an initial position by means of at least one biasing device, wherein the suction arm is pivotable in particular in at least one direction against the force of the biasing device, from the initial position to at least one pivot position.

6. The vacuum cleaner assembly according to claim 4, wherein the biasing device comprises at least one spring, at least one rubber element and/or at least one spring rod and/or another biasing member and optionally at least one covering device.

7. The vacuum cleaner assembly according to claim 5, wherein the biasing device is received at the basic body and at least one suction arm.

8. The vacuum cleaner assembly according to claim 1, wherein at least one suction arm comprises at least one air baffle.

9. The vacuum cleaner assembly according to claim 1, wherein at least one suction arm and/or the air baffle comprises at least one glide device.

10. The vacuum cleaner assembly according to claim 1, wherein at least one suction arm and/or the air baffle comprises at least one air ducting in functional connection with the suction intake of the associated suction duct.

11. The vacuum cleaner assembly according to claim 1, wherein at least one suction arm is associated with the at least one cover.

12. The vacuum cleaner assembly according to claim 1, wherein at least one suction arm comprises at least one brush device in particular with at least one brush.

13. The vacuum cleaner assembly according to claim 12, wherein the brush device is at least partially disposed between the air baffle and the cover.

14. The vacuum cleaner assembly according to claim 12, wherein the brush device is configured for at least partial retracting and/or extending.

15. The vacuum cleaner assembly according to claim 1, wherein at least one locking device is provided for locking at least one suction arm.

16. The vacuum cleaner assembly according to claim 12, wherein the brush device and/or the locking device comprises at least one selection device.

17. The vacuum cleaner assembly according to claim 16, wherein the selection device comprises at least one actuating member.

18. The vacuum cleaner assembly according to claim 15, wherein the selection device comprises at least one adjustment device.

19. The vacuum cleaner assembly according to claim 18, wherein the adjustment device comprises at least one lever shaft.

20. The vacuum cleaner assembly according to claim 18, wherein the adjustment device comprises at least one resetting device, in particular comprising at least one spring.

21. The vacuum cleaner assembly according to claim 1, wherein at least one suction arm comprises at least one end support for the adjustment device.

22. The vacuum cleaner assembly according to claim 1, wherein at least one fastener is provided between the air baffle and the cover.

23. The vacuum cleaner assembly according to claim 22, wherein the fastener is part of the air baffle, and/or wherein the fastener serves to guide the brush device and/or wherein the fastener serves to guide the resetting device.

24. The vacuum cleaner assembly according to claim 6, wherein the selection device comprises at least one shifting device.

25. The vacuum cleaner assembly according to claim 24, wherein the shifting device is configured plate-like.

26. The vacuum cleaner assembly according to claim 24, wherein the shifting device comprises at least one fastening member, and wherein at least one suction arm and/or at least one suction duct comprises at least one fastening member which interacts with the fastening member of the shifting device.

27. The vacuum cleaner assembly according to claim 25, wherein the shifting device comprises at least one recess, by means of which the shifting device is accommodated at least at one suction duct.

28. The vacuum cleaner assembly according to claim 21, wherein the shifting device is in functional connection with the adjustment device and/or the actuating member.

29. The vacuum cleaner assembly according to claim 28, wherein at least one transmission member is disposed between the actuating member and/or the adjustment device.

30. A vacuum cleaner with a vacuum cleaner assembly according to claim 1.

Description

[0055] Further advantages and features of the present invention can be taken from the exemplary embodiments which will be discussed below with reference to the enclosed figures.

[0056] The figures show in:

[0057] FIG. 1 a schematic illustration of a vacuum cleaner with an exemplary embodiment of a vacuum cleaner assembly according to the invention;

[0058] FIG. 2 a schematic illustration of an exemplary embodiment of a vacuum cleaner assembly according to the invention in a perspective view;

[0059] FIG. 3 the vacuum cleaner assembly according to FIG. 3 in another perspective view;

[0060] FIG. 4 the vacuum cleaner assembly according to FIG. 3 in a schematic front view;

[0061] FIG. 5 the vacuum cleaner assembly according to FIG. 3 in a schematic bottom view;

[0062] FIG. 6 the vacuum cleaner assembly according to FIG. 3 in a schematic top view;

[0063] FIG. 7 the vacuum cleaner assembly according to FIG. 3 in a schematic side view;

[0064] FIG. 8 a schematic illustration of an exemplary embodiment of a vacuum cleaner assembly according to the invention in a schematic side view and in a sectional view;

[0065] FIG. 9 the vacuum cleaner assembly according to FIG. 8 in a schematic front view and a sectional view;

[0066] FIG. 10 the vacuum cleaner assembly according to FIG. 8 in another schematic front view and a sectional view;

[0067] FIG. 11 a schematic illustration of an exemplary embodiment of a vacuum cleaner assembly according to the invention, with a view on the adjustment device with the brush takeup retracted;

[0068] FIG. 12 the view according to FIG. 11 with the brush takeup extended;

[0069] FIGS. 13 to 16 various pivot positions of the suction arms of a vacuum cleaner assembly according to the invention in top views;

[0070] FIG. 17 a schematic illustration of another exemplary embodiment of a vacuum cleaner assembly according to the invention in a perspective view;

[0071] FIG. 18 the vacuum cleaner assembly according to FIG. 17 in another perspective view;

[0072] FIG. 19 a schematic illustration of the exemplary embodiment according to FIG. 17 in an exploded view;

[0073] FIG. 20 another schematic illustration of the exemplary embodiment according to FIG. 17 in an exploded view with further components;

[0074] FIG. 21 a schematic illustration of an exemplary embodiment of a vacuum cleaner assembly according to the invention in a top view,

[0075] FIG. 22 a schematic sectional view of the vacuum cleaner assembly according to FIG. 21 along the sectional plane A-A;

[0076] FIGS. 23-27 various schematic views of an exemplary embodiment of a vacuum cleaner assembly according to the invention with different component arrangements in perspective illustrations;

[0077] FIG. 28 a schematic illustration of a suction arm of an exemplary embodiment of a vacuum cleaner assembly according to the invention in a perspective view;

[0078] FIG. 29 a schematic illustration of a shifting device of an exemplary embodiment of a vacuum cleaner assembly according to the invention in a perspective view;

[0079] FIG. 30 a schematic illustration of the suction arm according to FIG. 28 in another perspective view;

[0080] FIG. 31 a schematic illustration of an exemplary embodiment of a vacuum cleaner assembly according to the invention with the brush device extended in a perspective view;

[0081] FIG. 32 the vacuum cleaner assembly according to FIG. 31 in a schematic front view;

[0082] FIG. 33 the vacuum cleaner assembly according to FIG. 31 in a schematic sectional view; and

[0083] FIG. 34 a schematic, enlarged illustration of the operating principle of a locking device in a perspective view.

[0084] FIG. 1 schematically illustrates a vacuum cleaner 100 to which a vacuum cleaner assembly 1 according to the invention, which is presently configured as a floor nozzle 103, is connected by means of a suction hose 102 and a suction tube 101.

[0085] The FIGS. 2 and 3 schematically illustrate an exemplary embodiment of a vacuum cleaner assembly 1 according to the invention. It can be seen that the vacuum cleaner assembly 1 respectively the floor nozzle 103 comprises a suction device 2, which comprises a basic body 3 with a first end 4. The basic body 3 is substantially hollow, the first end 4 being provided with a suction inlet 5 for connection with a suction tube 101 and/or a suction hose 102 of a vacuum cleaner 100.

[0086] The substantially hollow basic body 3 divides at a second end 6 in the exemplary embodiment shown, into two suction ducts 7, each showing a suction intake 8. In the exemplary embodiment shown, the suction arms 8, 10 are integrally manufactured with the suction tubes 7. The suction arms 9, 10 are rotatably accommodated on the basic body 3. Thus, the suction arms 9, 10 rotate around, respectively together with, the suction ducts 7.

[0087] The basic body 3 in the exemplary embodiment shown is compact respectively very slim. The slimmer the basic body 3, the better the vacuum cleaner assembly 1 can later, when in use, enter into narrow gaps, for example between furniture feet.

[0088] To this end, the suction arms 9, 10 are provided pivotable respectively rotatable around the suction ducts 7, respectively they can rotate or pivot with the suction ducts 7 relative to the basic body, so that, depending on the configuration, they can fold away as required in one and/or two directions. The smaller the basic body 3, the closer the suction device 2 can be pivoted together, even when the suction arms 9, 10 are folded in.

[0089] In the exemplary embodiment shown, the suction arms 9, 10 respectively the suction ducts 7 are connected, through a connecting device 11, with the basic body 3 respectively with a connecting plate 41 fastened to the basic body. In other configurations, the suction arms 9, 10 can be fastened differently, wherein it is in particular still preferred for the suction arms 9, 10 to be pivotable around the suction ducts 7.

[0090] In other configurations, not shown, the connecting device 11, in particular with the suction arms 7 provided non-rotatable but for example manufactured integrally with the basic body 3, can comprise a connecting sleeve 12, by means of which the suction arms 9, 10 are firmly accommodated on the suction duct 7. Then, a pivoting sleeve 13 is preferably provided rotatable, which may be suitably supported for pivoting respectively rotation relative to the connecting sleeve 12. Other, rotary attachments of the suction arms directly on a suction duct may also be advantageously provided.

[0091] The FIGS. 4 to 7 illustrate respectively a front view, a bottom view, a top view, and a side view, of an exemplary embodiment of a vacuum cleaner assembly 1 according to the invention. Again one can see that the basic body 3 of the suction device 2 of the vacuum cleaner assembly 1 according to the invention, pivotally accommodates two suction arms 9, 10 on a suction duct 7 each, respectively by means of the suction duct 7.

[0092] The suction arms 9, 10 in the exemplary embodiment shown are constructed of multiple components. Each of these suction arms 9, 10 comprises an air baffle 18 comprising an air ducting 21 in functional connection with the pertaining suction intake 8 of the corresponding suction duct 7. Thus, in the exemplary embodiment shown, aspiring air through the suction intake 8 can generate a suction flow over nearly the entire longitudinal extension of the suction arms 9, 10.

[0093] In the exemplary embodiment shown, the suction arms 9, 10 comprise a glide device 19 comprising multiple glide surfaces 20, by means of which the vacuum cleaner assembly 1 respectively the floor nozzle can be readily pushed over the floor, in particular glide over wall-to-wall carpeting. Other than the air baffle 18, each suction arm 9, 10 in the exemplary embodiment shown also comprises a brush device 23 and a cover 22.

[0094] In FIG. 6, which schematically illustrates a top plan view of a vacuum cleaner assembly 1 according to the invention, it is schematically shown by the suction arm 9 that a biasing device 14 can be associated with each of the suction arms 9, 10. In the exemplary embodiment shown it comprises two springs respectively two extension springs 17.

[0095] The suction arm 9 is retained on one side in an initial position 15 by means of such a biasing device 14. The pertaining suction arm 9, 10 can be rotated respectively pivoted in the corresponding direction against the force of the biasing device 14. When the force acting against the biasing device 14 is removed, the pertaining suction arm 9, 10 resets automatically due to the force of the biasing device 14 respectively the extension spring 17.

[0096] In an embodiment not shown, rubber elements can be employed instead of the extension springs 17. Then, these rubber elements can preferably be provided in various strengths respectively with different restoring forces, so that a user can adjust the forces required for pivoting the suction arms 9, 10 according to his requirements, by selecting suitable rubber elements.

[0097] The FIGS. 8 to 12 schematically illustrate in various views that in the exemplary embodiment shown, the vacuum cleaner assembly respectively the suction device 2 also comprises a brush device 23, which can optionally be extended and retracted as required.

[0098] In the exemplary embodiment shown the brush device 23 comprises a brush takeup 34 in which at least one brush, not shown in detail, can be inserted. The brush takeup and/or the brush can be configured peripherally around the air ducting 21 and/or can be provided in sections only.

[0099] The brush device 23 is provided in particular for use on hard floors, such as for example tiles or wood flooring or laminates. Then the brush device 23 can be activated or retracted by means of an actuating member 25, as required.

[0100] This actuating member 25 is a part of a selection device 24 comprising, other than the actuating member 25 in the exemplary embodiment shown, an adjustment device 26 as well. This adjustment device 26 comprises a lever shaft 27 which is guided over an end support 28. In the exemplary embodiment shown, the end support 28 is a fastener 29 connecting the cover 22 with the air baffle 18.

[0101] Thus, it is in particular also possible that, as provided in the exemplary embodiment shown, the brush device 23 is disposed at least partially between the air baffle 18 and the cover 22.

[0102] Outside respectively on the basic body 3, an actuating member 25 respectively shifter respectively lever is provided, by means of which the adjustment device 26 can be actuated. In the exemplary embodiment shown, a shifting device 30 is provided therefor, which is configured plate-like, showing two recesses 31 by means of which the shifting device 30 is accommodated at the two suction ducts 7.

[0103] In the exemplary embodiment shown, actuating the actuating member 25 by means of a transmission member 35 actuates the adjustment device 26 respectively the shifting device 30. The shifting device 30 is configured such that the brush devices 23 respectively the brush takeup 34 of both of the suction arms 9, 10 are extended respectively retracted simultaneously.

[0104] For reversing respectively retracting the brush takeup 34, the brush device comprises a resetting device 32 comprising multiple springs 33. Against the force of the springs 33, configured as compression springs, respectively the resetting device 22, the adjustment device 26 respectively the lever shaft 27 extends downwardly, whereby the brush takeup 34 is displaced downwardly.

[0105] When due to actuating the actuating member 25 the lever shaft 27 is released, the springs 33 urge the brush takeup 34 back to the initial position, moreover entraining the lever shaft 27 upwardly.

[0106] The FIGS. 13 to 16 schematically illustrate how the two suction arms 9, 10 can be pivoted relative to the basic body 3 around the suction ducts 7, respectively by way of rotating the suction ducts 7 relative to the basic body.

[0107] FIG. 13 schematically illustrates that the two suction arms 9, 10 can be pivoted rearwardly at the same time. Thus, the suction arms 9, 10 are displaced together from an initial position 15 to a specific pivot position 16.

[0108] FIG. 14 schematically illustrates that two suction arms 9, 10 can also be pivoted forwardly.

[0109] FIG. 15 schematically illustrates that the two suction arms 9, 10 can also pivot in different directions independently of one another and/or that a suction arm 10 remains in a base position 15 while a suction arm 9 is being transferred to a pivot position 16.

[0110] FIG. 16 schematically illustrates that a suction arm 9 can for example be completely displaced rearwardly, wherein the other of the suction arms 10 can pivot inwardly just slightly, depending on the obstacle to be passed.

[0111] The FIGS. 17 and 18 schematically illustrate another exemplary embodiment of a vacuum cleaner assembly 1 according to the invention with a suction device 2. The vacuum cleaner assembly 1 shown is substantially structured as is the exemplary embodiment described above.

[0112] The vacuum cleaner assembly 1 comprises a basic body 3 with a first end 4 with a suction inlet 5 for connecting with the suction tube 101 respectively a suction hose 102 of a vacuum cleaner 100.

[0113] In the exemplary embodiment 2 shown, a front, second end 6 of the basic body 3 is also provided with suction ducts 7 manufactured integrally with the suction arms 9, 10 respectively with the air baffles 18 of the suction arms 9, 10. The suction ducts 7 have a suction intake 8 each, which makes a transition into the air ducting 21 of the air baffles 18 of the suction arms 9, 10, so that dirt is collected and sucked into the suction intakes 8 substantially over the entire longitudinal extension of the suction arms 9, 10.

[0114] The biasing device 14 for retaining the suction arms 9, 10 in the initial position 15 respectively for returning the suction arms 9, 10 to the initial position 15 is not illustrated in the FIGS. 17 and 18. However, unlike the exemplary embodiment described above, two spring rods 37 are provided instead of the extension springs 17.

[0115] One spring rod 37 each is guided through on the front and rear through a provided takeup 44. Then, the two ends of the pertaining spring rod 37 are guided over the suction arms 9, 10. The covers 22 of the suction arms 9, 10 are provided with another covering device 36 each, in which the ends of the spring rods 37 are received. When the suction arms 9, 10 pivot, the spring rods 37 glide back and forth in the ducts respectively guideways 45 of the covering device 36, depending on the direction in which the suction arms 9, 10 are guided, respectively on whether the suction arms 9, 10 are moved from the initial position 15 to the pivot position 16 or vice versa.

[0116] The FIGS. 19 and 20 schematically illustrate an exploded, perspective view and an exploded, front view of the exemplary embodiment shown in the FIGS. 17 and 18.

[0117] FIG. 20 also illustrates the spring rods 37 of the biasing device 40 and the springs 33 of the resetting device 32.

[0118] FIG. 21 is a schematic view from above of an exemplary embodiment according to the invention of a vacuum cleaner assembly 1. Again, one can recognize the spring rods 37 of the biasing device 14, which are guided into the guides respectively ducts 45 of the covering device 36.

[0119] FIG. 22 shows a front sectional view of the sectional plane A-A outlined in FIG. 21. Again, one recognizes the structure of the vacuum cleaner assembly 1, wherein in particular the layout of each of the components relative to one another, such as the air baffle 18, the brush device 23 and the cover 22, can be readily recognized in the sectional view.

[0120] This sectional view also permits to recognize that in the exemplary embodiment shown the suction ducts 7 are associated, respectively integrally manufactured, with the air baffle 18.

[0121] In order to achieve a rotary accommodation of the suction ducts 7 on the basic body 3, connection members 43 are provided which connect the suction ducts 7 and thus the suction arms 9, 10 with a connecting plate 41. Then, this connecting plate 41 is connected with the basic body 3. Other configurations may also provide for another configuration respectively connection of the suction ducts 7.

[0122] It can further be seen that inside of the basic body 3, the air ducting of the suction ducts 7 continues in two separate ducts 46 and 47, so as to leave space between these two ducts 46, 47 for providing the selection device 24 respectively for the actuating member 25 and the transmission member 35.

[0123] FIG. 23 schematically illustrates a perspective view of the exemplary embodiment already shown above, of a vacuum cleaner assembly 1 according to the invention, wherein various components have been hidden to better illustrate the structure of the suction device 2 at the suction arms 9, 10.

[0124] One can see by the suction arms 10 that the basic component of the suction arm 10 is the air baffle 18 with the air ducting 21, with the suction duct 7 fastened to this component, respectively the air baffle 18 and the suction duct 7 are manufactured integrally.

[0125] Again, one can identify the fasteners 29, which, among other things, serve to guide respectively receive the brush device 23, and on which moreover the springs 33 for the resetting device 32 can be retained.

[0126] As has been described above for the first exemplary embodiment, the exemplary embodiment shown also provides for a lever shaft 27 to press the brush device 23 down against the force of the resetting device 32 respectively against the force of the springs 33 of the resetting device 32.

[0127] This is done by turning over the actuating member 25. Thus, the shifting device 30 is pressed down so as to move the lever shaft 27. The lever shaft 27 pushes off against the brush device 23 and the inside surface of the cover 22 acting as the end support 28, so that the brush device 23 moves downwardly.

[0128] The exemplary embodiment shown is moreover provided with a locking device 38, which blocks the pivotability of the suction arms 9, 10, in parallel to the movements of the brush device 23.

[0129] In the exemplary embodiment shown this is provided to prohibit the pivoting of the suction arms 9, 10 when the brush device 23 is used for example in vacuuming wall-to-wall carpeting. This may be advantageous since, depending on the configuration, the frictional resistance on wall-to-wall carpeting may be that high that the suction arms 9, 10 move unintended.

[0130] The locking device 38 comprises different fastening members 39, 40, wherein the fastening members 39, 40 are presently provided on the shifter device 30 and the suction ducts 7. The precise operating principle will be discussed in more detail in the following figures.

[0131] FIG. 24 illustrates the exemplary embodiment shown above, with other components. One can see that the suction ducts 7, presently manufactured integrally with the suction arms 9, 10, pass through recesses 31 in the shifting device 30. Moreover one can see that the suction arms 9, 10 respectively the suction ducts 7 are rotatably received on a connecting plate 41.

[0132] FIG. 25 shows in another perspective view how the suction arms 9, 10 respectively the suction ducts 7 are connected with the connecting plate 41. To this end, the suction ducts 7 are connected with connection members 43, which pass through apertures 42 in the connecting plate 41. This achieves a rotary attachment of the suction ducts 7 to the connecting plate 41. Then the connecting plate 41 is attached to the basic body 3.

[0133] Moreover, one can see in the view shown that a recess 48 is provided in the connecting plate 41 through which the transmission member 35 can reach.

[0134] The rotary attachment of the suction arms 9, 10 respectively the suction ducts 7 to the basic body 3 with the connecting plate 41 is illustrated once again in the FIGS. 26 and 27.

[0135] FIG. 28 schematically illustrates a suction arm respectively an air baffle 18. Again, one can see that the air baffle 18 is manufactured integrally with the suction duct 7.

[0136] Moreover, it is shown in this view how the locking device 38 is configured in the exemplary embodiment shown. In order to prevent rotation of the suction arms 9, 10, the locking device 38 can serve to mechanically block a twisting of the suction arms 9, 10. To this end, the locking device 38 comprises in the exemplary embodiment shown, a fastening member 40 attached to the suction duct 7. This fastening member 40 is configured as a step 49.

[0137] FIG. 29 schematically illustrates an embodiment of a shifting device 30 of a selection device 24. It can be seen that the shifter device 30 comprises recesses 31 through which these suction ducts 7 are guided. Thus, the shifting device 30 is guided along the suction ducts 7.

[0138] In the exemplary embodiment shown, this shifting device 30 serves on the one hand for displacing the brush device 23, on the other hand in parallel, also for locking the suction arms 9, 10. In other configurations, only locking the suction arms 9, 10 may be provided. Then, for example the lever shaft 27 and all the components of the brush device 23 may be omitted.

[0139] For locking the suction arms 9, 10, the shifting device 30 in the exemplary embodiment shown comprises fastening members 39, presently provided as recesses 50, which engage in the steps 49 respectively the fastening members 40 at the suction ducts 7 when the shifting device 30 travels downwardly. Thus, the fastening members 40 of the suction ducts 7 interlock with the fastening members 39 of the shifting device 30, so that the suction arms 9, 10 are prevented from pivoting.

[0140] FIG. 30 once again illustrates from beneath, the air baffle 18 according to FIG. 28. One recognizes the air ducting 21 in the direction of the suction intake 8 in the suction ducts 7.

[0141] FIG. 31 illustrates a perspective total view of the previously shown exemplary embodiment of a vacuum cleaner assembly 1 according to the invention. In the exemplary embodiment shown, the spring rods 37 of the biasing device are also included.

[0142] Unlike the embodiments shown above, the selection device 24 has been actuated to extend the brush device 23 and to lock the suction arms 9, 10 by means of the locking device 38.

[0143] FIG. 32 schematically illustrates the exemplary embodiment shown in FIG. 31 of a vacuum cleaner assembly in a front view.

[0144] FIG. 33 shows a front sectional view of the vacuum cleaner assembly 1 according to FIG. 32. Again, one recognizes the arrangement of the individual components of the vacuum cleaner assembly 1 according to the invention.

[0145] The enlargement allows to recognize how the locking device 38 respectively the shifting device 30 prevents pivoting of the suction arms 9, 10 by engagement of the fastening members 39, 40.

[0146] FIG. 34 schematically illustrates in a perspective view the operating principle of the locking device 38. The transmission member 35 travels downwardly by way of the actuating member 25 (not shown), so that the shifting device 30 also travels downwardly.

[0147] The shifting device 30 is provided with a fastening member 39, which is provided by another recess 50 in the recess 31.

[0148] The suction ducts are provided with fastening members 40, presently configured as steps 49. The shifting device 30 is displaced along the suction ducts 7, until the fastening members 39, 40 interlock, thus blocking the suction arms 9, 10.

TABLE-US-00001 List of reference numerals:  1 vacuum cleaner assembly  2 suction device  3 basic body  4 first end  5 suction inlet  6 second end  7 suction duct  8 suction intake  9 suction arm  10 suction arm  11 connecting device  12 connecting sleeve  13 pivoting sleeve  14 biasing device  15 initial position  16 pivot position  17 spring/extension spring  18 air baffle  19 glide device  20 glide surface  21 air ducting  22 cover  23 brush device  24 selection device  25 actuating member  26 adjustment device  27 lever shaft  28 end support  29 attachment member  30 shifting device  31 recess  32 resetting device  33 spring  34 brush takeup  35 transmission member  36 covering device  37 spring rod  38 locking device  39 fastening member  40 fastening member  41 connecting plate  42 aperture  43 connecting member  44 accommodation  45 duct/guide  46 duct  47 duct  48 recess  49 step  50 recess 100 vacuum cleaner 101 suction tube 102 suction hose 103 floor nozzle