EP3927219B1 - Vacuum cleaner assembly - Google Patents

Description

The present invention relates to a vacuum cleaner assembly, in particular a floor nozzle, comprising at least one suction device with at least one base body which is hollow at least in sections and has at least one first end with at least one suction nozzle, in particular for connection to at least one suction pipe and/or suction hose of a vacuum cleaner. The present invention also relates to a vacuum cleaner with such a vacuum cleaner assembly.

There are many different types of floor nozzles for vacuum cleaners. These floor nozzles generally work satisfactorily and reliably. Different floor nozzles can be used depending on the area of application. For example, floor nozzles with sliding surfaces are used for carpets. Floor nozzles with brushes are used to vacuum hard floors such as tiles, wood or laminate. There are also floor nozzles that can be connected to a brush, so that such a floor nozzle can be flexibly adjusted to suit the surface to be vacuumed.

The disadvantage of conventional floor nozzles is that they usually have a fixed basic shape and that you therefore have to clear the floor to be vacuumed as much as possible in order to avoid being constantly disturbed by obstacles. Most floor nozzles do not fit between chair legs or it is very difficult to maneuver between them.

Even free spaces or gaps between pieces of furniture are usually of such a size or width that conventional floor nozzle cannot be moved into the gap.

Floor nozzles with swivelling or telescopic attachments have become known, which are intended to bring about an improvement in this regard. For example, the JP2013128617A , US 3,608,126 A , the US 6,536,076 B2 , the DE 4 413 071 A1 , the FR 2 076 110 A1 and the AT 413789 B show such well-known floor nozzles. However, these floor nozzles are sometimes very complex in terms of construction, not user-friendly and/or often relatively large overall and thus cannot move into smaller gaps despite the movable attachments.

It is therefore the object of the present invention to provide an alternative floor nozzle which at least partially improves the aforementioned disadvantages.

This object is achieved by a vacuum cleaner assembly having the features of claim 1 and by a vacuum cleaner having the features of claim 15. Preferred developments and embodiments of the invention emerge from the general description and the description of the embodiments.

The vacuum cleaner assembly according to the invention comprises at least one suction device with at least one base body which is hollow at least in sections and has at least one first end with at least one suction nozzle, which serves in particular for connection to at least one suction pipe and/or a suction hose of a vacuum cleaner. According to the invention, the base body is divided at a second end into at least two essentially tubular suction channels, each with at least one suction opening. At least one suction arm is assigned to each of the at least two suction openings, with at least one suction arm being pivotable about the associated suction channel is provided. and that the suction arms (9, 10) are held in a basic position (15) by means of at least one preloading device (14), wherein the suction arms (9, 10) can be pivoted, in particular rotated, from the basic position (15) into pivoting positions (16) against the force of the preloading device (14), wherein a rotation of up to 90° or more in one and also in the other direction is achievable and wherein the suction arms automatically return again by means of the preloading device when no more force acts against the preloading device.

The vacuum cleaner assembly according to the invention is designed in particular as a floor nozzle for a vacuum cleaner or for any type of vacuum cleaner. The vacuum cleaner assembly according to the invention can be used, for example, on a conventional household vacuum cleaner. However, the possible use is not limited to such a vacuum cleaner, but can also be used for industrial vacuum cleaners, wet vacuum cleaners, wet-dry vacuum cleaners, dry vacuum cleaners and/or other vacuum cleaner-like devices.

The at least one suction arm and in particular both suction arms are each provided so that they can rotate or pivot around the associated suction channel. It is particularly preferred that the suction arms, when they are standing on the floor in the position of use, can be pivoted in particular forwards and/or backwards. Pivoting in a substantially horizontal direction, i.e. over the floor, is particularly preferred.

According to the application, the fact that the suction arms are provided so as to be pivotable or rotatable around an intake channel means in particular that the suction arms can be rotated around the intake channels or are rotated together with the intake channels.

In embodiments in which, for example, the intake channels are assigned to the base body, wherein the suction arms are then preferably fixedly or non-rotatably connected to the base body and/or are manufactured in one piece therewith, the suction arms are preferably rotatably or pivotably mounted on the intake channels. The intake channel is then fixed and the suction arms rotate around the intake channel.

In embodiments in which the intake channels are assigned to the suction arms, for example if these are manufactured in one piece with the suction arms and/or are not connected to them in a rotatable manner, the suction arms are preferably rotatably mounted on the base body via the intake channels, so that the suction arms and the intake channels are rotated together. In this case, a suitable mounting or mounting of the intake channels on the base body is preferably provided.

The base body or the suction device is designed to be particularly small or as narrow as possible. It is particularly preferred that the base body is not or not significantly wider than the suction nozzle, so that the entire width is not significantly wider than a conventional suction pipe of a vacuum cleaner. This makes it possible to provide an extremely narrow vacuum cleaner assembly by pivoting or even almost completely folding it in by up to 90° or more. This means that the vacuum cleaner assembly can also be inserted into very narrow gaps depending on the application.

The basic shape of the base body is preferably essentially trapezoidal or shaped like a truncated pyramid, with the intake ducts then being able to exit from the base of the truncated pyramid. With such a design, a particularly suitable air flow with little noise emission is achieved.

The intake channels are preferably formed substantially in line with the intake nozzle or with the opening of the intake nozzle. Preferably, the pivot or rotation axis for the suction arms passes substantially at least partially through the intake opening or through the intake channel.

In order to achieve sufficient stability of the rotatably designed suction arm, the suction channels are designed to be essentially rigid and in particular completely rigid or stable, so that they offer a sufficiently stable hold for the suction arms, especially when the suction arms are mounted directly on the suction channels.

Preferably, the intake channels have a rounded or circular outer contour at least in sections.

During use of the vacuum cleaner assembly, the suction channels are preferably substantially perpendicular to the floor so that the suction arms attached to them protrude substantially transversely to the left and right.

In particular, at least two or exactly two suction channels are provided, so that a suction arm can be provided on both sides to the left and right. However, more than two, for example three, suction channels can also be provided, which are preferably arranged in a row. The two outer suction channels can then be provided to accommodate the suction arms, with one or more central suction channels suctioning a central area without a suction arm being provided on them.

The vacuum cleaner assembly according to the invention offers many advantages. A significant advantage is that the special design of the suction device with the at least two A particularly advantageous floor nozzle for vacuum cleaners is provided by the suction channels and the suction arms arranged thereon or assigned thereto.

On the one hand, this is achieved by designing the suction arms so that they can be pivoted. This means that, in particular, if the suction arms can be pivoted in both directions, the floor nozzle can, for example, move into a narrow gap when vacuuming.

To do this, the suction arms swing away in a corresponding direction. In particular, it is also possible for a narrow gap to be crossed as an obstacle, whereby the suction arms can expand again after crossing the obstacle. To do this, the suction arms are swung away in one direction when driving into the obstacle. After crossing the obstacle, the suction arms can return to their basic position. When the floor nozzle is pulled out of the obstacle, the suction arms then swing back in the opposite direction so that the floor nozzle can also be easily moved out of the obstacle again.

In addition, the special arrangement and design of the suction device provides a very small yet stable vacuum cleaner assembly, so that when the suction arms are folded in or swung in, they can also be moved into particularly narrow gaps, making the vacuum cleaner floor nozzle particularly versatile.

Preferably, at least one suction arm is accommodated on at least one intake channel. In such a configuration, the suction channel is in particular attached or mounted directly on the intake channel. The intake channel can thus in particular provide an axis of rotation for the suction arm.

In expedient embodiments, at least one suction channel is part of at least one suction arm. The suction channel is then preferably firmly connected to the suction arm and/or manufactured in one piece with it. The suction arm is then mounted on the base body in particular in a rotatable manner via the suction channel.

Particularly preferably, at least one suction arm comprises at least one connecting device for receiving on an intake channel, which in particular has at least one connecting sleeve and at least one pivoting sleeve that can be rotated relative to it. For example, the suction arm can be pushed onto the intake channel by means of the connecting sleeve, thereby providing a stable reception of the suction arm on the intake channel. The second sleeve, which is provided so that it can rotate relative to the connecting sleeve and is designed in particular as a pivoting sleeve, enables rotation relative to the connecting sleeve. For this purpose, a sliding bearing can preferably be provided between the two sleeves, or the two sleeves can be brought into operative connection with one another in a sliding manner. Other bearings can also be used appropriately, for example a ball bearing can also be provided. Depending on the design, at least one connecting plate with at least one opening and at least one connecting element can preferably also be provided in order to pivotally receive the suction arm or the intake channel at the opening of the connecting plate. The connecting plate can then preferably be attached to the base body with the suction arms pivotably received thereon. In other embodiments, the suction arm can preferably also have a passage adapted to the cross-section of the intake channel as a connecting device, by means of which the suction arm is attached to the intake channel. This also makes it possible to rotate it without two sleeves. This is particularly useful when the intake channels have a round cross-section.

According to the invention, at least one suction arm is held in at least one basic position by means of at least one preloading device. Such a basic position is in particular a position which holds the suction arms in such a position that the vacuum cleaner assembly is constructed similarly to a conventional floor nozzle. The two suction arms preferably protrude to the left and right of the base body.

According to the invention, at least one suction arm can be pivoted in at least one direction against the force of the preloading device from the basic position into at least one pivoting position. Pivotable here means in particular rotatable, whereby a rotation of up to 90° or more in one direction and also in the other direction is achievable. The suction arm automatically returns to its original position by means of the preloading device when no more force is acting against the preloading device.

The preloading device particularly preferably comprises at least one spring, at least one spring bar, at least one rubber or rubber band or at least one rubber ring and/or at least one other suitable preloading element and optionally at least one covering device. Such a spring can be designed, for example, as a tension spring and/or as a torsion spring. Other springs or types of spring can also advantageously be used as a preloading device. In particular, at least two springs can also be provided per suction arm, for example the use of two tension springs can be expedient, each of which in particular provides a restoring force for the deflection in one direction.

In a preferred embodiment with rubbers, the restoring force or the force required for pivoting The required force can be adjusted by selecting the rubbers. For example, a user can select the force or strength of the rubbers according to their needs and requirements. For example, if the floor covering has a relatively high frictional resistance, choosing stronger rubbers can be advantageous so that the suction arms do not rotate due to the frictional effect of the floor covering alone. In particular, the rubbers are then freely accessible so that they can be replaced quickly and easily by a user in the event of a defect or a planned change.

In expedient developments, the preloading device is accommodated on the base body and at least one suction arm. In particular, the attachment of at least one tension spring to the base body and one suction arm can be advantageous. In particular, the attachment of one or two tension springs on the top of the suction arm is expedient, with the other side of the tension spring then being hooked into a corresponding receptacle on the base body, for example. In a preferred embodiment in which the preloading device comprises at least one spring bar or a similar preloading element, a spring bar can be guided through an opening or an eyelet-like fastening element on the base body, for example, and extend over the suction arms. The spring bars are then preferably covered on the suction arms with a cover device, which can then simultaneously serve as a guide for the spring bars. The spring bars then slide back and forth in the guides when the suction arms are pivoted. A cover device can also be provided in an embodiment with springs or tension springs.

In preferred embodiments, at least one suction arm comprises at least one air guiding device. Such The air guiding device can be designed as a separate component or integrated into one-piece suction arms.

Preferably, the suction arm and/or the air guiding device comprises at least one sliding device. Such a sliding device is provided to facilitate the movement of the vacuum cleaner assembly, in particular on carpeted floors. For this purpose, the sliding device preferably has at least one sliding surface. Such a sliding device or sliding surface can also comprise at least one fabric section, as with conventional floor nozzles. Depending on the design, however, appropriately processed plastic surfaces can also serve as a sliding surface.

Preferably, at least one suction arm and/or the air guiding device has at least one air guide in operative connection to the suction opening of the associated suction channel. It is particularly preferred that this air guide is designed as a channel which preferably extends at least over a significant longitudinal extent of the suction arm. This means that air can be sucked in by means of the suction opening over almost the entire longitudinal extent of the suction arm.

Particularly preferably, at least one suction arm comprises at least one cover. This is particularly the case when the suction arm is constructed from several components. Such a cover is designed in particular as a housing part, which is placed on the air guiding device from above and/or is screwed to it, for example.

Preferably, at least one suction arm comprises at least one brush device, in particular with at least one brush accommodated therein and/or thereon. In this case, a rotating brush holder or rotating brushes However, it is also advantageous if individual brush sections are provided in a circumferential brush holder or in individual sections of brush holders. Such a brush device is particularly advantageous for use or for vacuuming hard floors, i.e. not carpets. Such a brush device can be provided in addition to or as an alternative to a sliding device or the sliding surface for vacuuming carpets.

Preferably, the brush device is arranged at least in sections between the air guiding device and the cover.

It is particularly preferred that the brush device is designed to be at least partially retractable and/or extendable. In particular, the brush holder or the brush can be moved so that the user can decide whether he wants to use the brush device or the sliding device depending on the surface to be vacuumed. To this end, the brush device or the brush holder of the brush device can be extended at least so far that the brush or the brush protrudes beyond the sliding device or the sliding surface.

In practical further developments, at least one locking device is provided for locking at least one suction arm. The optional locking of suction arms can be advantageous depending on the application. For example, blocking the pivoting or rotation of one or both suction arms can be advantageously used by a user as required. Blocking the pivoting or rotation of the suction arms can be advantageous, particularly when vacuuming carpets, since the frictional resistance on carpets can be so strong that the suction arms swing around unintentionally.

The brush device and/or the locking device preferably comprises at least one switching device. The switching device preferably comprises at least one actuating element, for example for switching between the use of the brush device and the sliding device and/or for locking the suction arms. Such an actuating element can be provided in particular as a lever or switch, which is in particular accommodated on the base body and can be operated, for example, by means of the foot.

The switching device preferably comprises at least one adjustment device. By means of this amplifier device, the brush device or the brush holder can be adjusted or retracted and/or extended.

The adjustment device then preferably comprises at least one lever shaft. In such a design, the brush or the brush holder is in particular designed to be bowl-shaped at least in sections, so that the lever shaft can engage with it. The brush holder can then be extended as required using the lever shaft.

The brush device preferably comprises at least one reset device which automatically retracts the brush holder as soon as the lever or the adjusting device or the lever shaft is relieved again. Such a reset device preferably comprises at least one preloading device, in particular at least one spring. Depending on the design, the brush holder can then be extended by means of the adjusting device or with the lever shaft, for example against the force of a tension spring. As soon as the lever shaft is relieved again, the tension spring pulls the brush holder or the spring back up, preferably together with the lever shaft. Depending on the design, the reset device can also comprise a compression spring which The brush holder is held in the retracted position. The brush device can then be extended against the force of the compression spring using the lever shaft.

Preferably, at least one suction arm has at least one abutment for the adjustment device. Depending on the design, the return device or a spring and/or the lever shaft can be guided in particular via the abutment.

Particularly preferably, at least one suction arm comprises at least one fastening element between the air guiding device and the cover.

The fastening element is preferably part of the air guiding device. Particularly preferably, the fastening element serves additionally or otherwise as a guide and/or holder for the brush device or parts thereof. In expedient further developments, the fastening element serves additionally or otherwise as a guide for the return device; in particular, compression springs can be placed on the fastening elements or guided over them.

The switching device preferably comprises at least one switching device. In particular, a switching plate can be provided which is operatively connected to the adjustment device and in particular to that of the lever shaft. Depending on the design, the switching device or the switching plate is also or exclusively operatively connected to elements or components of the locking device.

In this case, the switching device is in particular designed in the form of a plate, wherein the switching device then preferably has at least one recess by means of which the switching device is accommodated on at least one intake channel In particular, it is preferred that the switching device has at least two recesses so that the switching device is securely guided along at least two intake ducts.

The switching device preferably comprises at least one locking element, wherein at least one suction arm and/or at least one suction channel comprises at least one locking element which interacts with the locking element of the switching device. In this way, mechanical blocking of the rotary movement of the suction arms can be prevented.

Particularly preferably, the switching device is operatively connected to the adjustment device and/or the actuating element. In particular, there can be a direct and/or indirect operative connection between the components.

In particular, the adjustment device serves to operate the brush devices of both suction arms or to lower the brush holder or the brushes of both suction arms. In particular, the adjustment device serves to operate the locking device. If a brush device and a locking device are provided, they are preferably operated or operated together. Both components can, however, also preferably be provided alone on a vacuum cleaner nozzle.

In expedient embodiments, at least one transmission element is arranged between the actuating element and/or the adjusting device. For example, a plunger can be provided which acts as a transmission element for transmitting the force from the actuating element or a lever or a switch to the adjusting device or the switching plate.

The vacuum cleaner according to the invention comprises a vacuum cleaner assembly as previously described and has the same advantages.

Further advantages and features of the present invention will become apparent from the embodiments which are explained below with reference to the accompanying figures.

Figur 1

eine schematische Darstellung eines Staubsaugers mit einem Ausführungsbeispiel einer erfindungsgemäßen Staubsaugerbaugruppe;

Figur 2

eine schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Staubsaugerbaugruppe in einer perspektivischen Ansicht;

Figur 3

die Staubsaugerbaugruppe gemäß Figur 3 in einer anderen perspektivischen Ansicht;

Figur 4

die Staubsaugerbaugruppe gemäß Figur 3 in einer rein schematischen Ansicht von vorne;

Figur 5

die Staubsaugerbaugruppe gemäß Figur 3 in einer rein schematischen Ansicht von unten;

Figur 6

die Staubsaugerbaugruppe gemäß Figur 3 in einer rein schematischen Ansicht von oben;

Figur 7

die Staubsaugerbaugruppe gemäß Figur 3 in einer rein schematischen Ansicht von der Seite;

Figur 8

eine rein schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Staubsaugerbaugruppe in einer rein schematischen Ansicht von der Seite und einer Schnittansicht;

Figur 9

die Staubsaugerbaugruppe gemäß Figur 8 in einer rein schematischen Ansicht von vorne und einer Schnittansicht;

Figur 10

die Staubsaugerbaugruppe gemäß Figur 8 in einer weiteren rein schematischen Ansicht von vorne und einer Schnittansicht;

Figur 11

eine rein schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Staubsaugerbaugruppe mit Blick auf die Verstelleinrichtung mit eingefahrener Bürstenaufnahme;

Figur 12

die Ansicht gemäß Figur 11 mit ausgefahrener Bürstenaufnahme;

Figuren

13 bis 16 verschiedene Schwenkpositionen der Saugarme einer erfindungsgemäßen Staubsaugerbaugruppe in Ansichten von oben;

Figur 17

eine schematische Darstellung eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Staubsaugerbaugruppe in einer perspektivischen Ansicht;

Figur 18

die Staubsaugerbaugruppe gemäß Figur 17 in einer anderen perspektivischen Ansicht;

Figur 19

eine schematische Darstellung des Ausführungsbeispiels gemäß Figur 17 in einer Explosionsdarstellung;

Figur 20

eine weitere schematische Darstellung des Ausführungsbeispiels gemäß Figur 17 in einer Explosionsdarstellen mit weiteren Bauteilen;

Figur 21

eine schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Staubsaugerbaugruppe in einer Ansicht von oben,

Figur 22

eine rein schematische Schnittansicht der Staubsaugerbaugruppe gemäß Figur 21 entlang der Schnittebene A-A;

Figur 23-27

verschiedene rein schematische Ansichten eines Ausführungsbeispiels einer erfindungsgemäßen Staubsaugerbaugruppe mit unterschiedlichen Bauteilanordnungen in perspektivischen Darstellungen.

Figur 28

eine rein schematische Darstellung eines Saugarmes eines Ausführungsbeispiels einer erfindungsgemäßen Staubsaugerbaugruppe in einer perspektivischen Ansicht;

Figur 29

eine rein schematische Darstellung einer Schalteinrichtung eines Ausführungsbeispiels einer erfindungsgemäßen Staubsaugerbaugruppe in einer perspektivischen Ansicht;

Figur 30

eine rein schematische Darstellung des Saugarmes gemäß Figur 28 in einer anderen perspektivischen Ansicht;

Figur 31

eine rein schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Staubsaugerbaugruppe mit ausgefahrener Bürsteneinrichtung in einer perspektivischen Ansicht;

Figur 32

die Staubsaugerbaugruppe gemäß Figur 31 in einer rein schematischen Ansicht von vorne;

Figur 33

die Staubsaugerbaugruppe gemäß Figur 31 in einer rein schematischen Schnittansicht; und

Figur 34

eine rein schematische vergrößerte Darstellung der Funktionsweise einer Feststelleinrichtung in einer perspektivischen Ansicht.

In the figures show:

Figure 1

a schematic representation of a vacuum cleaner with an embodiment of a vacuum cleaner assembly according to the invention;

Figure 2

a schematic representation of an embodiment of a vacuum cleaner assembly according to the invention in a perspective view;

Figure 3

the vacuum cleaner assembly according to Figure 3 in a different perspective view;

Figure 4

the vacuum cleaner assembly according to Figure 3 in a purely schematic view from the front;

Figure 5

the vacuum cleaner assembly according to Figure 3 in a purely schematic view from below;

Figure 6

the vacuum cleaner assembly according to Figure 3 in a purely schematic view from above;

Figure 7

the vacuum cleaner assembly according to Figure 3 in a purely schematic view from the side;

Figure 8

a purely schematic representation of an embodiment of an inventive Vacuum cleaner assembly in a purely schematic side view and a sectional view;

Figure 9

the vacuum cleaner assembly according to Figure 8 in a purely schematic view from the front and a sectional view;

Figure 10

the vacuum cleaner assembly according to Figure 8 in another purely schematic view from the front and a sectional view;

Figure 11

a purely schematic representation of an embodiment of a vacuum cleaner assembly according to the invention with a view of the adjustment device with retracted brush holder;

Figure 12

the view according to Figure 11 with extended brush holder;

figures

13 to 16 different pivoting positions of the suction arms of a vacuum cleaner assembly according to the invention in views from above;

Figure 17

a schematic representation of a further embodiment of a vacuum cleaner assembly according to the invention in a perspective view;

Figure 18

the vacuum cleaner assembly according to Figure 17 in a different perspective view;

Figure 19

a schematic representation of the embodiment according to Figure 17 in an exploded view;

Figure 20

a further schematic representation of the embodiment according to Figure 17 in an exploded view with other components;

Figure 21

a schematic representation of an embodiment of a vacuum cleaner assembly according to the invention in a view from above,

Figure 22

a purely schematic sectional view of the vacuum cleaner assembly according to Figure 21 along the section plane AA;

Figure 23-27

various purely schematic views of an embodiment of a vacuum cleaner assembly according to the invention with different component arrangements in perspective representations.

Figure 28

a purely schematic representation of a suction arm of an embodiment of a vacuum cleaner assembly according to the invention in a perspective view;

Figure 29

a purely schematic representation of a switching device of an embodiment of a vacuum cleaner assembly according to the invention in a perspective view;

Figure 30

a purely schematic representation of the suction arm according to Figure 28 in a different perspective view;

Figure 31

a purely schematic representation of an embodiment of a vacuum cleaner assembly according to the invention with extended brush device in a perspective view;

Figure 32

the vacuum cleaner assembly according to Figure 31 in a purely schematic view from the front;

Figure 33

the vacuum cleaner assembly according to Figure 31 in a purely schematic sectional view; and

Figure 34

a purely schematic enlarged representation of the functionality of a locking device in a perspective view.

In Figure 1 A vacuum cleaner 100 is shown purely schematically, to which a vacuum cleaner assembly 1 according to the invention is connected by means of a suction hose 102 and a suction pipe 101, which is designed here as a floor nozzle 103.

In the Figures 2 and 3 an embodiment of a vacuum cleaner assembly 1 according to the invention is shown purely schematically. Here it can be seen that the vacuum cleaner assembly 1 or the floor nozzle 103 has a suction device 2 which comprises a base body 3 with a first end 4. The base body 3 is essentially hollow, with an intake nozzle 5 being provided at the first end 4 for connection to a suction pipe 101 and/or a suction hose 102 of a vacuum cleaner 100.

The essentially hollow base body 3 is divided at a second end 6 in the embodiment shown here into two intake channels 7, each of which has an intake opening 8. In the embodiment shown, the suction arms 8, 10 are made in one piece with the intake pipes 7. The suction arms 9, 10 are rotatably mounted on the base body 3. The suction arms 9, 10 thus rotate around the intake channels or together with the intake channels 7.

In the embodiment shown here, the base body 3 is designed to be small or as slim as possible. The slimmer the base body 3 is, the better the vacuum cleaner assembly 1 can be moved into small gaps, for example between furniture feet, later on in use.

For this purpose, the suction arms 9, 10 are provided so that they can be pivoted or rotated around the suction channels 7 or can be rotated or pivoted with the suction channels 7 relative to the base body so that they can be folded away in one and/or both directions if necessary, depending on the design. The smaller the base body 3 is, the narrower the suction device 2 can be folded together even when the suction arms 9, 10 are folded together.

In the embodiment shown, the suction arms 9, 10 or the intake channels 7 are connected via a connecting device 11 to the base body 3 or to a connecting plate 41 which is fastened to the base body. In other embodiments, the suction arms 9, 10 can also be fastened in a different way, although it is particularly preferred that the suction arms 9, 10 can be pivoted about the intake channels 7.

In other embodiments not shown, in particular when the suction arms 7 are not rotatable but are, for example, made in one piece with the base body 3, the connecting device 11 can comprise a connecting sleeve 12 by means of which the suction arms 9, 10 are stably received on the suction channel 7. In contrast, a pivoting sleeve 13 is then preferably provided which can be pivoted or pivoted in a suitable manner relative to the connecting sleeve 12. Other direct fastenings of the suction arms rotatably on a suction channel can also advantageously be provided.

In the Figures 4 to 7 a frontal view, a view from below, a view from above and a side view of an embodiment of a vacuum cleaner assembly 1 according to the invention are shown. Here too, it can be seen that two suction arms 9, 10 are each pivotably received on the base body 3 of the suction device 2 of the vacuum cleaner assembly 1 according to the invention, on a suction channel 7 or by means of the suction channel 7.

In the embodiment shown here, the suction arms 9, 10 are constructed from several components. Each suction arm 9, 10 comprises an air guide device 18, which has an air guide 21, which is operatively connected to the respective suction opening 8 of the corresponding suction channel 7. In the embodiment shown here, the suction of air through the suction opening 8 can thus create a suction flow over almost the entire longitudinal extent of the suction arms 9, 10.

In the embodiment shown here, the suction arms 9, 10 comprise a sliding device 19, which has several sliding surfaces 20, by means of which the vacuum cleaner assembly 1 or the floor nozzle can be easily slid over the floor, in particular over carpet. In addition to the air guiding device 18, each suction arm 9, 10 in the embodiment shown here also comprises a brush device 23 and a cover 22.

In Figure 6 , in which a plan view from above of a vacuum cleaner assembly 1 according to the invention is shown purely schematically, it is shown purely schematically on the suction arm 9 that each suction arm 9, 10 can be assigned a preloading device 14. In the embodiment shown here, this comprises two springs or two tension springs 17.

By means of such a preloading device 14, the suction arm 9 is held in a basic position 15. The respective suction arm 9, 10 can be rotated or pivoted in a corresponding direction against the force of the preloading device 14. If the force against the preloading device 14 is removed, the corresponding suction arm 9, 10 automatically returns to its original position due to the force of the preloading device 14 or the tension spring 17.

In an embodiment not shown, rubbers can also be used instead of the tension springs 17. These rubbers can then preferably be provided in different strengths or with different restoring forces, so that a user can adjust the pivoting of the suction arms 9, 10 to his needs by selecting the appropriate rubbers.

In the Figures 8 to 12 It is shown purely schematically in different views that the vacuum cleaner assembly or the suction device 2 in the embodiment shown here also has a brush device 23, which can optionally be extended and retracted as required.

In the embodiment shown here, the brush device 23 comprises a brush holder 34 into which at least one brush (not shown in detail) can be inserted. The brush holder and/or the brush can be designed to run around the air guide 21 and/or can also be provided only in sections.

The brush device 23 is intended in particular for use on hard floors such as tiles, wooden floors or laminate. Depending on requirements, the brush device can 23 can then be switched on or retracted by means of an actuating element 25.

This actuating element 25 is part of a switching device 24, which in addition to the actuating element 25 in the embodiment shown here also comprises an adjusting device 26. This adjusting device 26 here comprises a lever shaft 27, which is guided over an abutment 28. In the embodiment shown here, the abutment 28 is a fastening element 29, which connects the cover 22 to the air guiding device 18.

In particular, it is also possible that, as provided in the embodiment shown here, the brush device 23 is arranged at least partially between the air guiding device 18 and cover 22.

An actuating element 25 or a switch or a lever is provided outside or on the base body 3, via which the adjusting device 26 can be actuated. In the embodiment shown, a switching device 30 is provided for this purpose, which is designed like a plate and has two recesses 31, by means of which the switching device 30 is accommodated on the two intake channels 7.

By actuating the actuating element 25, the adjustment device 26 or the switching device 30 is actuated in the embodiment shown here by means of a transmission element 35. The switching device 30 is designed in such a way that the brush devices 23 or the brush holder 34 of both suction arms 9, 10 are extended or retracted simultaneously.

To move the brush holder 34 back or in, the brush device comprises a return device 32, which here has several springs 33. The adjustment device 26 or the lever shaft 27 is extended downwards against the force of the springs 33, which are designed here as compression springs, or the return device 22, whereby the brush holder 34 is moved downwards.

If the lever shaft 27 is relieved again by actuating the actuating element 25, the springs 33 press the brush holder 34 back into the starting position and also take the lever shaft 27 back up again.

In the Figures 13 to 16 It is shown purely schematically how the two suction arms 9, 10 can be pivoted relative to the base body 3 about the intake channels 7 or by rotating the intake channels 7 relative to the base body.

In this case, Figure 13 purely schematically shown that the two suction arms 9, 10 can be pivoted backwards at the same time. In this way, the suction arms 9, 10 are moved together from a basic position 15 into a specific pivot position 16.

In Figure 14 It is shown purely schematically that both suction arms 9, 10 can also be pivoted forward.

In Figure 15 It is shown purely schematically that the two suction arms 9, 10 can also be pivoted independently of each other in different directions and/or that one suction arm 10 remains in a basic position 15, while one suction arm 9 is transferred to a pivoting position 16.

In Figure 16 . purely schematically shown that one suction arm 9 can, for example, be moved completely backwards, whereby the other suction arm 10 can also only swivel in a little, depending on the obstacle to be passed through.

In the Figures 17 and 18 A further embodiment of a vacuum cleaner assembly 1 according to the invention with a suction device 2 is shown purely schematically. The vacuum cleaner assembly 1 shown is essentially constructed in the same way as the embodiment already described above.

The vacuum cleaner assembly 1 comprises a base body 3 with a first end 4 with an intake nozzle 5 for connection to the suction pipe 101 or an intake hose 102 of a vacuum cleaner 100.

In the embodiment shown here, 2 intake channels 7 are also provided at a front second end 6 of the base body 3, which are manufactured in one piece with the suction arms 9, 10 or with the air guiding devices 18 of the suction arms 9, 10. The intake channels 7 each have an intake opening 8, which merges into the air guide 21 of the air guiding devices 18 of the suction arms 9, 10, so that dirt is collected over essentially the entire longitudinal extent of the suction arms 9, 10 and sucked into the intake openings 8.

The preloading device 14 for holding the suction arms 9, 10 in the basic position 15 or for returning the suction arms 9, 10 to the basic position 15 is in the Figures 17 and 18 no preloading element is shown. However, in contrast to the previously described embodiment, two spring bars 37 are provided here instead of the tension springs 17.

A spring rod 37 is guided through a corresponding holder 44 at the front and rear. The two ends of the respective spring rod 37 then lead over the suction arms 9, 10. On the cover 22 of the suction arms 9, 10, a further covering device 36 is provided in which the ends of the spring rods 37 are accommodated. When the suction arms 9, 10 are pivoted, the spring rods 37 slide back and forth in the channels or guides 45 of the covering device 36, depending on the direction in which the suction arms 9, 10 are guided, or depending on whether the suction arms 9, 10 are moved from the basic position 15 into the pivot position 16 or vice versa.

In the Figures 19 and 20 is that in the Figures 17 and 18 The embodiment already shown is shown purely schematically in a perspective exploded view and a frontal exploded view.

In this case, Figure 20 also the spring bars 37 of the preloading device 40 and the springs 33 of the return device 32 are shown.

In Figure 21 an embodiment of a vacuum cleaner assembly 1 according to the invention is shown in a purely schematic view from above. Here, too, the spring bars 37 of the preloading device 14 can be seen, which are guided into the guides or channels 45 of the covering device 36.

Figure 22 shows a frontal sectional view through the Figure 21 indicated sectional plane AA. Here, too, the structure of the vacuum cleaner assembly 1 can be seen, whereby in particular the arrangement of the individual components in relation to one another, such as the air guiding device 18, the brush device 23 and the cover 22, can be clearly seen in the sectional view.

In this sectional view it can also be seen that the intake ducts 7 in the embodiment shown here are air guiding device 18 or are manufactured in one piece with it.

In order to achieve a rotatable mounting of the intake channels 7 on the base body 3, connecting elements 43 are provided here, which connect the intake channels 7 and thus the suction arms 9, 10 to a connecting plate 41. This connecting plate 41 is then connected to the base body 3. In other embodiments, a different configuration or connection of the intake channels 7 can also be provided.

Furthermore, it can be seen that within the base body 3, the air flow of the intake channels 7 is continued in two separate channels 46 and 47, so that between these two channels 46, 47 there remains installation space for the provision of the switching device 24 or for the actuating element 25 and the transmission element 35.

In Figure 23 The previously shown embodiment of a vacuum cleaner assembly 1 according to the invention is shown purely schematically in a perspective view, wherein different components have been hidden for a better illustration of the structure of the suction device 2 on the suction arms 9, 10.

It can be seen from the suction arm 10 that the basic component of the suction arm 10 is the air guiding device 18 with the air guide 21, wherein the intake duct 7 is attached to this component or wherein the air guiding device 18 and intake duct 7 are manufactured in one piece.

Here, too, the fastening elements 29 are known, which serve, among other things, as a guide or holder for the brush device 23 and on which the springs 33 for the return device 32 can also be held.

As previously described for the first embodiment, in the embodiment shown here the brush device 23 is pressed downwards via a lever shaft 27 against the force of the return device 32 or against the force of the springs 33 of the return device 32.

This is done by turning the actuating element 25. This pushes the switching device 30 downwards, which moves the lever shaft 27. The lever shaft 27 presses against the brush device 23 and the inside of the cover 22 as abutment 28, whereby the brush device 23 is moved downwards.

In the embodiment shown here, a locking device 38 is also provided, which blocks the pivotability of the suction arms 9, 10 parallel to the movement of the brush device 23.

In the embodiment shown, this is intended to prevent the pivoting of the suction arms 9, 10 when using the brush device 23, for example when vacuuming carpets. This can be advantageous because the frictional resistance on carpets can be so high, depending on the design, that the suction arms 9, 10 move unintentionally.

The locking device 38 comprises various locking elements 39, 40, whereby the locking elements 39, 40 are provided on the switch device 30 and the intake channels 7. The exact mode of operation is explained in more detail in the following figures.

In Figure 24 the previously shown embodiment is shown with other components. Here you can see that the intake ducts, which are manufactured in one piece with the suction arms 9, 10 7 are guided through recesses 31 in the switching device 30. It can also be seen that the suction arms 9, 10 or the suction channels 7 are rotatably mounted on a connecting plate 41.

In Figure 25 In another perspective view, you can see how the suction arms 9, 10 or the intake channels 7 are connected to the connecting plate 41. For this purpose, the intake channels 7 are connected to connecting elements 43, which are passed through openings 42 in the connecting plate 41. This achieves a rotatable fastening of the intake channels 7 to the connecting plate 41. The connecting plate 41 is then fastened to the base body 3.

In addition, it can be seen in the view shown here that a recess 48 is provided in the connecting plate 41 through which the transmission element 35 can pass.

The rotatable fastening of the suction arms 9, 10 or the suction channels 7 to the base body 3 with the connecting plate 41 is shown in the Figures 26 and 27 presented again.

In 28, a suction arm or an air guiding device 18 is shown purely schematically. Here, too, it can be seen that the air guiding device 18 is manufactured in one piece with the intake duct 7.

In addition, this view shows how the locking device 38 is designed in the embodiment shown here. In order to prevent the suction arms 9, 10 from twisting, the locking device 38 can be used to mechanically block the rotation of the suction arms 9, 10. For this purpose, the locking device 38 in the embodiment shown here comprises a fixed element 40, which is attached to the Intake channel 7 is attached. This locking element 40 is designed here as a step 49.

In Figure 29 an embodiment of a switching device 30 of a switching device 24 is shown purely schematically. Here it can be seen that the switching device 30 has recesses 31 through which these intake channels 7 are led. The switching device 30 is thus guided along the intake channels 7.

In the embodiment shown, this switching device 30 serves on the one hand to move the brush device 23, and on the other hand, in parallel, to lock the suction arms 9, 10. In other embodiments, only the locking of the suction arms 9, 10 may be provided. In this case, for example, the lever shaft 27 and all components of the brush device 23 can be omitted.

In order to fix the suction arms 9, 10, the switching device 30 in the embodiment shown here has fixed elements 39, which are provided here as recesses 50, which engage in the steps 49 or the locking elements 40 on the intake channels 7 when the switching device 30 is moved downwards. The locking elements 40 of the intake channels 7 thus engage with the locking elements 39 of the switching device 30, which prevents the suction arms 9, 10 from pivoting.

In Figure 30 the air guiding device 18 is in accordance with Figure 28 shown again from below. Here you can see the air duct 21 in the direction of the intake opening 8 in the intake ducts 7.

In Figure 31 The previously shown embodiment of a vacuum cleaner assembly 1 according to the invention is shown in a perspective overall view. In the In the embodiment shown, the spring bars 37 of the preloading device are also shown.

In contrast to the previously shown embodiments, here the switching device 24 has been actuated in order to extend the brush device 23 and to fix the suction arms 9, 10 by means of the locking device 38.

In Figure 32 is that in Figure 31 shown embodiment of a vacuum cleaner assembly in a front view purely schematically.

Figure 33 shows a frontal sectional view through the vacuum cleaner assembly 1 according to Figure 32 Here, too, the arrangement of the individual components of the vacuum cleaner group 1 according to the invention is known.

The enlargement shows how the locking device 38 or the switching device 30 prevents the pivoting of the suction arms 9, 10 by the engagement of the locking elements 39, 40.

In Figure 34 The functionality of the locking device 38 is shown purely schematically in a perspective view. The transmission element 35 is moved downwards via the actuating element 25 (not shown), whereby the switching device 30 is also moved downwards.

A locking element 39 is provided on the switching device 30, which is made available by a further recess 50 in the recess 31.

Locking elements 40 are provided on the intake ducts, which are designed here as steps 49. The Switching device 30 is moved along the intake channels 7 until the locking elements 39, 40 engage with each other and thus block the suction arms 9, 10.

List of reference symbols:

1 vacuum cleaner assembly 32 reset device 2 suction device 33 Feather 3 base body 34 brush holder 4 first ending 35 transmission element 5 intake manifold 36 covering device 6 second ending 37 spring rod 7 intake duct 38 locking device 8 intake opening 39 locking element 9 suction arm 40 locking element 10 suction arm 41 connecting plate 11 connecting device 42 opening 12 connecting sleeve 43 connecting element 13 swivel sleeve 44 Recording 14 preloading device 45 channel/guide 15 basic position 46 channel 16 swivel position 47 channel 17 spring/tension spring 48 recess 18 air guiding device 49 Level 19 sliding device 50 recess 20 sliding surface 100 Vacuum cleaner 21 air flow 101 intake manifold 22 cover 102 suction hose 23 brush device 103 floor nozzle 24 switching device 25 actuator 26 adjustment device 27 lever shaft 28 abutment 29 fastener 30 switching device 31 recess

Claims (15)

1. A vacuum cleaner assembly (1), comprising at least one suction device (2) with at least one main part (3), which is at least sectionally designed in a hollow manner and has at least a first end (4) with at least one suction nozzle (5), particularly for being connected to at least one suction tube (101) and/or suction hose (102) of a vacuum cleaner (100),
   characterized in

   that the main part (3) has a compact design and is on a second end (6) divided into two essentially tubular suction channels (7), which respectively have at least one suction opening (8), wherein a suction arm (9, 10) is respectively assigned to the two suction openings (8), and wherein the suction arms (9, 10) are arranged so as to be pivotable about the associated suction channel (7), and

   in that the suction arms (9, 10) are held in a normal position (15) by means of at least one preloading device (14), wherein the suction arms (9, 10) protrude from the main part (3) toward left and toward the right in the normal position (15), wherein the suction arms (9, 10) can be pivoted, particularly rotated, from the normal position (15) into pivoting positions (16) against the force of the preloading device (14), wherein a rotatability of up to 90° or more can be achieved in one direction, as well as in the other direction, and wherein the suction arms are once again automatically reset by means of the preloading device when no force any longer acts against the preloading device.
2. The vacuum cleaner assembly (1) according to claim 1, wherein at least one suction arm (9, 10) is received on at least one suction channel (7) and/or wherein at least one suction channel (7) forms part of at least one suction arm (9, 10).
3. The vacuum cleaner assembly (1) according to one of the preceding claims, wherein at least one suction arm (9, 10) comprises at least one connecting device (11) for being received on a suction channel (7), and wherein said connecting device particularly has at least one connection sheath (12) and at least one pivoting sleeve (13) that is rotatable relative thereto and/or at least one connecting plate (41) with at least one opening (42) and at least one connecting element (43) for receiving the suction arm on the opening (42) of the connecting plate (41) in a pivotable manner.
4. The vacuum cleaner assembly (1) according to one of the preceding claims, wherein the preloading device (14) comprises at least one spring (17), at least one rubber and/or at least one spring rod (37) and/or one other preloading element and optionally at least one cover device (36), wherein the preloading device (14) preferably is received on the main part (3) and at least one suction arm (9, 10).
5. The vacuum cleaner assembly (1) according to one of the preceding claims, wherein at least one suction arm (9, 10) comprises at least one air guiding device (18), and wherein at least one suction arm (9, 10) and/or the air guiding device (18) comprises at least one sliding device (19).
6. The vacuum cleaner assembly (1) according to one of the preceding claims, wherein at least one suction arm (9, 10) and/or the air guiding device (18) has at least one air guide (21), which is operatively connected to the suction opening (8) of the associated suction channel (7).
7. The vacuum cleaner assembly (1) according to one of the preceding claims, wherein at least one cover (22) is assigned to at least one suction arm (9, 10).
8. The vacuum cleaner assembly (1) according to one of the preceding claims, wherein at least one suction arm (9, 10) comprises at least one brush unit (23), particularly a brush unit with at least one brush, wherein the brush unit (23) preferably is arranged at least sectionally between the air guiding device (18) and the cover (22) and/or wherein the brush unit (23) preferably is designed such that it can be at least partially retracted and/or extended.
9. The vacuum cleaner assembly (1) according to one of the preceding claims, wherein at least one locking device (38) for locking at least one suction arm (9, 10) is provided.
10. The vacuum cleaner assembly (1) according to one of the two preceding claims, wherein the brush unit (23) and/or the locking device comprises at least one switchover device (24), wherein the switchover device (24) preferably comprises at least one actuating element (25) and/or at least one adjusting device (26), and wherein the adjusting device (26) preferably comprises at least one lever shaft (27) and/or at least one resetting device (32), which particularly comprises at least one spring (33).
11. The vacuum cleaner assembly (1) according to one of preceding claims 9 or 10, wherein at least one suction arm (9, 10) has at least one abutment (28) for the adjusting device (26).
12. The vacuum cleaner assembly (1) according to one of preceding claims 5 to 11, wherein at least one fastening element (29) is provided between the air guiding device (18) and the cover (22), and wherein the fastening element (29) preferably forms part of the air guiding device and/or wherein the fastening element (29) preferably serves as a guide for the brush unit (23) and/or wherein the fastening element (29) preferably serves as a guide for the resetting device (32).
13. The vacuum cleaner assembly (1) according to one of preceding claims 10 to 12, wherein the switchover device (24) comprises at least one switching device (30), wherein the switching device (30) particularly is designed in a plate-like manner and/or wherein the switching device (30) preferably comprises at least one locking element (39), and wherein at least one suction arm (9, 10) and/or at least one suction channel (7) preferably comprises at least one locking element (40), which interacts with the locking element (39) of the switching device (30), and/or wherein the switching device (30) particularly has at least one recess (31), by means of which the switching device (30) is received on at least one suction channel (7).
14. The vacuum cleaner assembly (1) according to one of preceding claims 21 to 23, wherein the switching device (30) is operatively connected to the adjusting device (26) and/or the actuating element (25) and/or wherein at least one transmission element (35) is arranged between the actuating element (25) and/or the adjusting device (26).
15. A vacuum cleaner (100) with a vacuum cleaner assembly (1) according to one of the preceding claims.

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