EP4153019A1

EP4153019A1 - Suction device

Info

Publication number: EP4153019A1
Application number: EP21724208.0A
Authority: EP
Inventors: Stephan Siegel; Matthias Hermann
Original assignee: Alfred Kaercher SE and Co KG
Current assignee: Alfred Kaercher SE and Co KG
Priority date: 2020-05-19
Filing date: 2021-04-29
Publication date: 2023-03-29
Also published as: CN115551399A; WO2021233660A1; US20230075130A1; DE102020113521A1

Abstract

The invention relates to a suction device comprising a suction head (20), a suctioned material container (12) for receiving a suctioned material, a suction fan device (22) which is arranged on the suction head (20), and a channel device (96) which is paired with the suction fan device (22) for conducting process air to the suction head (20), wherein the channel device (96) has at least one first air outlet (102) and a second air outlet (104), and the channel device (96) has a first channel (106) paired with the first air outlet (102) for supplying air to the first air outlet (102) and a second channel (108) paired with the second air outlet (104) for supplying air to the second air outlet (104). A tube element (186a) with an adapter device (186) is provided. The adapter device (186) is fluidically connected or can be fluidically connected to a suction connection (34) of the suction device in a releasable manner in order to carry out a suction process, and the adapter device (186) is fluidically connected or can be fluidically connected to the first air outlet (102) in a releasable manner in order to carry out a blowing process. An air inlet opening (160) of the second channel (108) for supplying process air from the suction fan device (22) to the second air outlet (104) is closed by at least one wall element (189) of the adapter device (186) when the adapter device (186) is properly connected to the first air outlet (102).

Description

Suction device

The invention relates to a suction device, comprising a suction head, a suction material container for receiving suction material, a suction fan device arranged on the suction head and a duct device assigned to the suction fan device for guiding process air to the suction head, the duct device having at least a first air outlet and a second air having outlet, and wherein the channel device has a first channel assigned to the first air outlet for supplying air to the first air outlet and a second channel assigned to the second air outlet for supplying air to the second air outlet.

From DE 10 2004 013 063 A1 a vacuum cleaner with a vacuum cleaner housing is known, which comprises a lower part having a dirt collecting container and an upper part that can be placed on the lower part and accommodates a suction unit, and with a handle bar mounted on the lower part so as to be pivotable about a pivot axis, the Is U-shaped and has a handle and two legs protruding on one side from the handle, locking elements being arranged on the legs and on the upper part, which engage behind each other when the handlebar is oriented vertically. At a distance from the locking elements, latching elements are arranged at least on one leg and on the vacuum cleaner housing, which can be brought into engagement with one another by pivoting the handle bar into its vertical position.

From the publications WO 2018/057358 Al, CN 201847612 U, JP H0646974, WO 2010/092514 Al, EP 1656064 Bl, US 2005/0257340 Al, US 5339487 A and EP 0935944 Al further vacuum cleaners with a vacuum cleaner housing are known, wherein on the vacuum cleaner housing a handle bar is pivotably mounted.

From US 2005/0050677 Al a vacuum cleaner with a suction material container is known, wherein the suction material container is detachable with a suction head of the dust Suction is connected and wherein the suction material has a pivotably ge mounted handle.

From EP 3448218 B1 a vacuum cleaner is known, comprising a loading container, a suction unit, an air ducting unit and an exhaust air unit, the exhaust air unit comprising an essentially annular air flow volume defining collecting chamber which is concentric to the suction unit and which is around one or more Outlet openings of the suction unit is positioned to collect air, and to guide collected air to an outlet opening of the collection chamber. The exhaust air unit further comprises two opposite exhaust air ducts, each of the two ducts surrounding a respective portion of the collecting chamber and having an inlet end in correspondence with the outlet opening of the collecting chamber and a respective outlet end which is opposite to the inlet end in order to discharge air which has passed through the Suction unit is sucked in.

US 4,809,394, US 2002/0088103 A1 and DE 602 00 858 T2 also disclose vacuum cleaners.

The invention is based on the object of providing a suction device mentioned at the outset which, with a compact design, can be set in a versatile manner and which can be operated easily and conveniently.

This object is achieved according to the invention in the suction device mentioned at the outset in that the suction device comprises a pipe element with an adapter device, wherein the adapter device for performing a suction process can be or is releasably connected to a suction connection of the suction device and the adapter device is connected to perform a blowing process is or is connected to the first air outlet in a fluid-effective releasable manner, and wherein an air inlet opening of the second channel for supplying process air from the suction fan device to the adapter device by means of at least one wall element the second air outlet is closed when the adapter device is properly connected to the first air outlet.

As a result, a decoupling of process air through the second air outlet can be blocked or released as a function of whether the adapter device is connected to the first air outlet or not. If the adapter device is properly connected to the first air outlet, the process air is decoupled in particular exclusively via the first air outlet, the process air then being decoupled from the suction head via the first air outlet, in particular with an increased outflow speed and / or with an increased pressure will. In this way, for example, an effective blowing function can be implemented on the suction device.

If the adapter device is separated from the first air outlet, the second air outlet is released. The process air is then decoupled from the suction head both via the first air outlet and via the second air outlet. An air flow of the decoupled process air is thereby distributed to the first air outlet and the second air outlet, so that an outflow speed and / or a pressure of the decoupled process air at the first air outlet or at the second air outlet is reduced. As a result, undesired blowing on an operator of the suction device during operation is reduced.

The suction device according to the invention can thereby be used in a particularly versatile and convenient manner by a user.

When the adapter device is separated from the first air outlet, the second channel is in particular completely released and / or completely opened. If the adapter device is properly connected to the first air outlet, the second channel is in particular completely blocked and / or completely closed, so that in particular no process air can be extracted by means of the second air outlet. In principle, it is also possible for an intermediate state to be implemented by means of the adapter device in which the air inlet opening of the second channel is at least partially released and / or partially opened.

In principle, it is also possible that the air inlet opening of the second channel can be closed or released by means of a nozzle element, the nozzle element being arranged, for example, on the suction head or on the adapter device.

It is also possible that the air inlet opening of the second channel can be closed or released by arranging an accessory element of the suction device within the first channel. For example, the accessory element is a nozzle element or a crevice nozzle for use with the suction device, which can be arranged within the first channel. If the accessory element is arranged within the first channel, the air inlet opening of the second channel is blocked by means of the accessory element.

It can be advantageous if the air inlet opening of the second channel is arranged in a transition area between a connecting channel of the channel device and the second channel, with process air being able to be supplied from the suction fan device to the first channel and / or the second channel by means of the connecting channel. In this way, the second channel can be fluidically separated from the connecting channel in a technically simple manner.

It can be favorable if the air inlet opening of the second channel is exposed when the adapter device is separated from the first air outlet. As a result, there is, for example, an automatic transition to an operating mode in which the process air is decoupled via the first air outlet and the second air outlet when an operator separates the adapter device from the first air outlet, which enables convenient operation of the suction device. It can be advantageous if the at least one wall element of the adapter device has a curved shape and / or if the at least one wall element lies in a geometric cylinder section. The at least one wall element can thereby be connected, for example, in a technically simple manner to a cylindrical hose element, whereby the adapter device can be arranged or formed on a cylindrical hose element in a technically simple manner.

It can be favorable if the suction device comprises a connecting device, by means of which the adapter device can be releasably fixed and / or releasably latched to the first air outlet.

In particular, it can be provided that the suction device comprises a connecting device, by means of which the adapter device can be releasably fixed and / or releasably latched on the suction connection.

In particular, it can be provided that at least one rib element for supporting and / or guiding the adapter device is arranged on the first air outlet and / or on the first channel, and in particular that the at least one rib element is oriented at least approximately parallel to a first longitudinal center axis of the first channel is.

For example, the second channel within the suction head is in fluid communication with a connection channel for supplying process air from the suction fan device to the first channel and / or the second channel when the adapter device is separated from the first air outlet.

For example, the second channel within the suction head is fluid with respect to a connection channel for supplying process air from the suction fan device to the first channel and / or the second channel in the suction head. tightly closed when the adapter device is properly connected to the first air outlet.

For example, the first channel within the suction head is in fluid communication with a connecting channel for supplying process air from the suction fan device to the first channel and / or the second channel when the adapter device is separated from the first air outlet.

For example, the first channel within the suction head is connected to a connecting channel for supplying process air from the suction fan device to the first channel and / or the second channel in a fluid-active connection when the adapter device is properly connected to the first air outlet.

The aforementioned object is also achieved according to the invention in the aforementioned suction device in that a smallest angle between a first longitudinal center axis of the first channel and a second longitudinal center axis of the second channel is at least 40 ° and / or at most 70 °.

In this way, a torque exerted on the suction device and / or on the suction head when process air is decoupled from the suction head can be reduced during operation. This makes it possible to reduce undesirable movements and, in particular, undesirable rotary movements of the suction device during operation. This enables the suction device to be operated as conveniently as possible.

As a result, the suction device can also be used particularly comfortably, for example, when it has reduced static friction with respect to a subsurface, for example because the subsurface is smooth or because the suction device is equipped with rollers for movement on the subsurface. In these situations, too, the invented according to the suction device reduce an undesirable (rotary) movement, which results from the decoupling of process air.

In particular, it can be provided that a smallest angle between the first longitudinal center axis of the first channel and the second longitudinal center axis of the second channel is at least 50 ° and / or at most 60 °. As a result, a torque on the suction device that occurs when process air is decoupled can be further reduced.

It can be favorable if a smallest angle between a main flow direction of process air guided through the first channel and a main flow direction of process air guided through the second channel is at least 40 ° and / or at most 70 ° and in particular at least 50 ° and / or does not exceed 60 °.

For example, a first longitudinal center axis of the first channel and a second longitudinal center axis of the second channel are at least approximately in a common plane, the plane being oriented transversely and in particular perpendicular to a longitudinal center axis and / or to a height direction of the suction device.

For example, a main flow direction of process air guided through the first channel and a main flow direction of process air guided through the second channel lie at least approximately in a common plane, the plane being transverse and in particular perpendicular to a longitudinal center axis and / or to a height direction of the Suction device is ori ented.

For example, an outer contour of the first air outlet is at least approximately circular. For example, a wall element of the first channel, which delimits a flow space for air in the first channel, is at least partially and / or segmentally cylindrical.

It can be favorable if the first air outlet and the second air outlet are spaced apart from one another in the circumferential direction of the suction head, and in particular if the smallest distance between the first air outlet and the second air outlet is at least 1 cm and / or at most 7 cm. The occurrence of a torque during the coupling of process air can thereby be further reduced.

For example, a first center point of an outer contour of the first air outlet and a second center point of an outer contour of the second air outlet are at least approximately at the same height with respect to a height direction of the suction device.

For example, a lower end of the at least first air outlet and a lower end of the second air outlet are at least approximately at the same height with respect to a height direction of the suction device.

For example, an upper end of the first air outlet and an upper end of the second air outlet are at least approximately at the same height with respect to a height direction of the suction device.

For example, the second air outlet has a cross-sectional area that is at least 10% and in particular at least 15% and in particular at least 20% larger than the first air outlet. As a result, process air can be decoupled over an enlarged cross-sectional area, as a result of which a flow velocity and / or a pressure of the air that is decoupled is reduced. For example, an outer contour of the second air outlet is essentially rectangular.

For example, an outer contour of the second air outlet lies at least in sections in a geometric rectangle.

For example, at least three of four edge sections of the outer contour of the second air outlet lie in a geometric rectangle.

For example, a fourth edge section of the outer contour of the second air outlet has a first subsection and a second subsection adjoining the first subsection, the second subsection being oriented transversely to the first subsection.

For example, at least one edge section of the outer contour of the second air outlet is oriented transversely and in particular perpendicular to a height direction of the suction device.

For example, an edge section of the outer contour of the second air outlet facing the first air outlet is designed in a straight line.

It can be favorable if the first channel and the second channel have flow spaces for air that are fluidically separated from one another or fluidically separable. As a result, the second channel can be fluidically separated from the first channel within the suction head, so that, for example, process air cannot be decoupled via the second channel.

It can be advantageous if a flow cross section of the first channel is at least approximately constant. In this way, for example, the connection of the adapter device to the first air outlet can be implemented in a technically simple manner. It can be favorable if a flow cross section of the second channel widens towards the second air outlet, and in particular if the flow cross section of the second channel is greatest at an end of the second air outlet facing the second air outlet and / or at one of the second air outlet remote end of the second channel is smallest. In this way, a flow rate of process air coupled out through the second channel can be reduced.

In particular, it can be provided that the channel device comprises a connecting channel for establishing a fluid-effective connection between an outlet of the suction fan device and the first air outlet and / or the second air outlet, with air to be coupled out of the suction head to the first channel and / or by means of the connecting channel is or is divisible to the second channel. In this way, for example, process air can be fed to the first channel and the second channel at the same time for decoupling.

For example, the connecting channel is arranged in an interior of the suction head.

For example, the connecting channel has a first partial area in which a flow cross-section of the connecting channel is at least approximately constant

For example, the connecting channel has a second partial area adjoining a first partial area, the second partial area facing the first channel and / or the second channel, and wherein a flow cross-section of the connecting channel in the second partial area extends to the first channel and / or the second channel expanded and in particular expanded monotonically. In this way, for example, process air can be divided into the first channel and the second channel in a technically simple manner. For example, the connecting channel surrounds the suction fan device in sections.

For example, the connecting channel has a shape that is curved towards a longitudinal center axis of the suction device, the longitudinal center axis being oriented parallel to a height direction of the suction device.

For example, the connecting channel is arranged between an outlet and / or outlet channel of the suction fan device and the first channel and / or the second channel with respect to a main flow direction of air coupled out from the suction fan device.

For example, a transition area for air is formed between an outlet and / or outlet channel of the suction fan device and the connecting channel.

For example, a transition area for air formed between an outlet and / or outlet channel of the suction fan device and the connecting channel is designed in such a way that a main flow direction of air decoupled from the suction fan device is reversed in the transition area and in particular is reversed by at least approximately 180 ° . As a result, when process air is decoupled, torques occurring on the suction head are further reduced.

In one embodiment, the suction device comprises at least one air guiding element for distributing air to be coupled out from the suction head to the first channel and the second channel, the at least one air guiding element being arranged in the connecting channel or assigned to the connecting channel. The air can be distributed to the first channel and the second channel in a technically simple manner by means of the at least one air guide element. For example, the at least one air guiding element is oriented transversely to the first channel.

For example, a smallest angle between a longitudinal center axis of the at least one air guiding element and a first longitudinal center axis of the first channel is at least 20 ° and / or at most 50 ° and in particular at least 30 ° and / or at most 40 °.

For example, the at least one air guide element has a shape that is curved towards a longitudinal center axis of the suction device, the longitudinal center axis being oriented parallel to a height direction of the suction device.

For example, the at least one air guiding element is arranged in a partial area and / or end area of the connecting channel facing the first channel and / or second channel.

For example, an air guiding element and a further air guiding element spaced apart from the air guiding element are provided, the air guiding element and the further air guiding element in particular being oriented at least approximately parallel to one another.

It can be favorable if a center point and / or center of gravity of the suction fan device is arranged on a first side with respect to a central plane running through a longitudinal center axis and / or height direction of the suction device and that a connecting channel for supplying air from the suction fan device to the first air outlet and / or to the second air outlet is arranged at least in sections with respect to the center plane on a second side opposite the first side. In this way, torques occurring when process air is extracted from the suction head can be further reduced. For the same reason, it is advantageous if at least 60% and in particular at least 80% of a cross-sectional area of the connecting channel lie on the second side.

For the same reason, it is advantageous if the second air outlet is arranged on a first side with respect to a central plane of the suction device running through a longitudinal central axis and / or height direction of the suction device, and if the first air outlet is arranged on a second side opposite the first side with respect to the central plane is arranged.

For the same reason, it is advantageous if the first longitudinal center axis of the first channel is oriented at least approximately parallel to a plane running through a vertical direction of the suction device.

It can be favorable if a suction connection assigned to the suction fan device and / or an opening device for cooling air assigned to the suction fan device and / or an operating element device of the suction device are arranged on a first side of the suction device. The named components of the suction device are thus easily accessible to an operator and / or are arranged in a space-saving manner on the suction device.

For the same reason, it is advantageous if the first air outlet and / or the second air outlet and / or a receiving area of the suction device for receiving a cable and / or a holding device of the suction device for a cable are arranged on a second side of the suction device, which is a facing away from the first side of the suction device.

In particular, it can be provided that the duct device and / or the first air outlet and / or the second air outlet with respect to a height direction of the suction device below a receiving area of the suction Device for receiving a cable and / or below a holding device of the suction device for a cable are arranged.

It can be advantageous if the first air outlet and / or the second air outlet are arranged and / or formed on the suction head, and in particular if the first air outlet and / or the second air outlet are each half on a base element of the suction head and half on one the basic element arranged hood element of the suction head are arranged and / or formed, wherein the hood element is arranged with respect to a height direction of the suction device above the base element. The suction head and / or a suction head housing can thereby be designed in a technically simple manner.

In particular, it can be provided that the suction material container is detachably connected to the suction head. In this way, for example, the suction head can be separated from the suction material container by an operator in order to empty the suction material container. The suction material container can then be reconnected to the suction head.

It can be favorable if a suction connection assigned to the suction fan device is arranged and / or formed on the suction material container. In this way, dirty air can be coupled directly into the suction material container by means of the suction fan, the dirt components of the air being discharged into the suction material container and / or to a filter unit. Pure air is then injected into the suction head by means of the suction fan and extracted from it via an air outlet.

It can be advantageous if the suction head has a suction head housing on which the first air outlet and / or the second air outlet are arranged and / or formed.

In particular, it can be provided that the channel device in one Interior of the suction head is arranged, the interior being delimited in particular by a suction head housing of the suction head.

The tubular element is designed to be rigid and / or flexible, for example. For example, the pipe element is or comprises a flexible hose element, such as a suction hose of the suction device.

In particular, it can be provided that the suction device is set up and designed as a wet / dry vacuum cleaner and / or as a mobile vacuum cleaner and / or as a stand-alone vacuum cleaner.

Process air is to be understood as meaning air which is sucked in by means of the suction fan device via a suction connection of the suction device and then extracted via an air outlet. Process air is not to be understood as meaning, in particular, air which is used to cool the suction fan device or is associated with a cooling air guiding device of the suction fan device.

The longitudinal center axis of the suction device is to be understood as a longitudinal axis of the suction device which is oriented in the vertical direction of the suction device. For example, the suction device is designed to be rotationally symmetrical at least in sections with respect to the longitudinal center axis.

When the suction device is properly positioned in an operating state, the longitudinal center axis and / or the height direction are oriented at least approximately parallel to the direction of gravity.

A reference to "top" or "bottom" and / or to "upper" or "lower" elements of the suction device is always to be understood relative to the height direction of the suction device, it being assumed that the suction device is properly in an operating state is positioned (for example, arranged with rollers on a floor). Unless otherwise stated, "approx." and "at least approximately" to mean that a geometric shape deviates by an average of at most 10% from a specified ideal geometric shape or that a value and / or a distance and / or an angle by at most 10% from the specified value and / or Distance and / or angle deviates. A percentage deviation of a geometric shape from an ideal geometric shape corresponds, for example, to an average deviation of a width and / or length and / or height of the geometric shape from the width and / or length and / or height of an ideal geometric shape.

The following description of preferred embodiments is used in conjunction with the drawings to explain the invention in more detail. Show it:

FIG. 1 shows a perspective illustration of a suction device from the side from above, a handle of the suction device being in a second position and a connecting cable of the suction device being arranged on a holding device of the suction device;

FIG. 2 shows a perspective illustration of the suction device according to FIG. 1, the handle bar being in a first position and an adapter device being connected to a connecting device of the suction device;

FIG. 3 shows a perspective view of a first side of the suction device according to FIG. 1, the handle bar being in the first position; FIG. 4 shows a perspective side view of the suction device according to FIG. 1, the handle bar being in the first position and the adapter device being connected to the connecting device;

FIG. 5 shows a perspective side view of the suction device according to FIG. 1, the connecting cable of the suction device being arranged on the holding device of the suction device;

FIG. 6 shows a perspective view of a second side of the suction device according to FIG. 1, the connecting cable of the suction device being arranged on a holding device of the suction device;

FIG. 7 shows a sectional view of a section along the line 2-2 according to FIG. 6;

FIG. 8 shows a detailed view of area A according to FIG. 7;

FIG. 9 shows a perspective view of a second side of the suction device according to FIG. 1, the adapter device being arranged on the connection device of the suction device;

FIG. 10 is a sectional view of a section along the line 4-4 according to FIG. 9;

FIG. 11 shows a perspective view from above of the suction device according to FIG. 1;

FIG. 12 shows a sectional view of a section along the line 6-6 according to FIG. 11; FIG. 13 shows a sectional view of a section along the line 7-7 according to FIG. 11;

FIG. 14 is a sectional view of a section along the line 8-8 according to FIG

FIG. 5, the handle bar being in the first position and being properly connected to the suction device;

FIG. 15 shows a sectional view of a section along the line 8-8 according to FIG. 5, the handle bar being dismantled from the suction device;

FIG. 16 shows a partial sectional view of a cover element of the suction device according to FIG. 1 from above, the handle bar being in the second position; and

FIG. 17 shows a perspective detailed view of a cover element of the suction device, the handle bar being in the second position.

Identical or functionally equivalent elements are provided with the same reference symbols in all figures.

An embodiment of a suction device, which is shown in Figures 1 to 17 and denoted there by 10, is a mobile suction device and designed as a stand-alone device. For example, the suction device 10 is designed as a wet / dry vacuum cleaner.

The suction device 10 comprises a suction material container 12 with a receiving space 14 for suction material. The suction material container 12 is formed from a barrel and has, for example, a cylindrical shape.

The suction material container 12 comprises a base element 16 and a element 16 arranged wall element 18 which delimits the receiving space 14. For example, the wall element 18 has a cylindrical shape.

A suction head 20 is detachably and in particular removably seated on the suction material container 12. A suction fan device 22 is arranged on the suction head 20 and generates a suction flow in an operating state of the suction device 10. The suction fan device 22 comprises a motor 24, in particular an electric motor, and a blower unit 26 (suction fan) driven by the motor 24.

The suction device 10 has a longitudinal center axis 28, the suction device 10 being designed to be rotationally symmetrical in particular at least in sections with respect to the longitudinal center axis 28. For example, the suction material container 12 and / or the suction head 20 are designed to be at least partially rotationally symmetrical with respect to the longitudinal center axis 28.

When the suction device 10 is properly positioned in an operating state, the longitudinal center axis 28 is oriented at least approximately parallel to a direction of gravity 30.

The longitudinal center axis 28 of the suction device 10 is to be understood in particular as an axis which is oriented parallel to a height direction 32 of the suction device 10, for example the floor element 16 being at a lower height with respect to this height direction 32 (i.e. further down or at a lower gravity potential ) is arranged as the suction head 20 when the suction device 10 is properly positioned in an operating state.

Any subsequent reference to "above" or "below" and / or to "upper" or "lower" elements of the suction device 10 is always to be understood relative to the height direction 32 of the suction device 10, assuming this is that the suction device 10 is properly positioned in an operating state.

A suction connection 34 is arranged on the suction material container 12 at a distance from the base 16 and / or above half of the base 16, via which a suction air flow through the suction material container 12 can be coupled into the suction fan device 22 arranged on the suction head 20 by means of the suction fan device 22. A connection device 36 for a pipe element of the suction device 10 is assigned to this suction connection 34, the connection device 36 being, for example, at least partially arranged and / or formed on the suction connection 34.

The tubular element is designed to be rigid and / or flexible, for example. For example, the pipe element is a flexible hose element, such as a suction hose of the suction device 10, for example, a suction process can be carried out by an operator of the suction device 10 by means of the pipe element.

By means of the connecting device 36, a fluid-effective, detachable connection can be established between the suction connection 34 and the pipe element. To produce a detachable connection between the tubular element and the connec tion device 36, the tubular element comprises an adapter device.

The suction connection 34 comprises, for example, an opening 38, which is for example circular and which is arranged at a distance from the base 16 and / or above the base 16 on the suction material container 12. For example, the opening 38 is arranged or formed on the wall element 18 of the suction container.

By means of the suction connection 34 and the connecting device 36, a detachable fluid-active connection can be established between the pipe element and the suction connection 34. It can be used by means of the suction connection Ses 34, for example via the opening 38, establish a fluidic connection between the pipe element and the receiving space 14 of the suction material container 12.

In one embodiment, a stand 40 is assigned to the suction material container 12. This stand 40 is, for example, annular and has a receiving area 42 for the suction material container 12. The receiving area 42 comprises a support surface for the suction material container 12, on which the suction material container 12 can be set up. For example, the receiving area 42 is limited by a paragraph 43 of the stand 40.

The stand 40 comprises rollers 44 over which the stand 40 and thus also the suction device 10 can be moved. It can also be provided that "extendable" rollers are arranged on the stand 40 and, depending on the application, with "retracted rollers" the suction device 10 can be slid on a floor by means of the stand 40 or with "extended rollers" by means of the rollers on a floor Floor is mobile.

The suction material container 12 is closed towards an upper side 46 of the suction material container (in a direction away from the base element 16) by an underside 48 of the suction head 20 arranged on the suction material container 12.

As an alternative or in addition, it is also possible for the suction material container 12 to be closed by a separate suction material container cover (not shown).

The suction head 20 has a support area 50, via which it can be supported on the suction material container 12.

To fix the suction head 20 to the suction material container 12, a fixation device 52 is provided which, for example, comprises one or more latching elements 54, via which the suction head 20 can be locked to the suction material container 12. The suction device 10 has a filter unit 56. In relation to a main flow direction 58 of the suction flow generated by means of the suction fan device 22, the filter unit 56 is arranged between the receiving space 14 and the suction fan device 22.

The filter unit 56 has a clean side 60 which, based on the main flow direction 58, faces an inlet 62 for air of the suction fan device 12, and a dirty side 64 which faces the receiving space 14.

In the embodiment shown, the filter unit 56 is designed as a cartridge filter.

The filter unit 56 is detachably connected to the suction head 20 by means of a filter holder 66. The filter holder 66 is arranged for example with respect to the height direction 32 below the input 62 of the suction fan device 22.

The suction head 20 comprises a suction head housing 68, which is designed, for example, as a circumferential housing and / or delimits an interior 70 of the suction head 20.

The suction head housing 68 comprises a base element 72 which faces the receiving space 14 of the suction material container 12. On this basic element 72, for example, the underside 48 is formed.

A hood element 74 of the suction head housing 68, which is connected to the base element 72, sits on the base element 72. A cover element 76 of the suction head housing 68 is formed on this hood element 74, for example.

For example, one or more accessories are attached to the cover element 76 holding elements 77 for holding and / or storage of accessories for the suction device 10 arranged and / or formed.

The cover element 76 has, for example, an upper side 78. It can be provided that this top side 78 is set up and designed as a support surface for the arrangement of accessories for the suction device 10. For example, the top 78 is at least partially flat. For example, 78 grooves for holding the accessories are formed on the top.

For example, the top 78 forms an uppermost end face of the suction device 10 and / or of the suction head housing 68.

The hood element 74 is, for example, an upper housing element of the suction head housing 68. The hood element 74 faces an operator of the suction device 10 when the latter is properly positioned in an operating state.

For example, the fixing device 52 and / or the latching elements 54 are arranged on the base element 72.

On the suction head 20, a holding element 79 for the tubular element of the suction device 10, for example the suction hose of the suction device 10, is arranged. For example, the holding element 79 is arranged on the hood element 74 of the suction head housing 68.

On a first side 80 of the suction device 10 and / or the suction head housing 68, an operating element device 82 for controlling the suction device 10 by an operator is arranged. By means of the operating element device 82, functions of the suction device 10, such as, for example, a suction process or a blowing process of the suction device 10, can be controlled by the operator. The suction fan device 22 is assigned a cooling air guide device 84 which is arranged and / or formed on the suction head 20. The cooling air guide device 84 serves to guide cooling air by means of which the suction fan device 22 is cooled during operation.

The cooling air guide device 84 comprises a cooling air space 86 which is formed in the interior 70 of the suction head housing 68 between the hood element 74 and the suction fan device 22. This cooling air space 86 is fluidically connected to an opening device 88 which is formed on the suction head housing 68. For example, the opening device 88 comprises a plurality of openings and / or ventilation slots, through which cooling air can be coupled in and / or out of the suction head housing 68.

The opening device 88 is formed, for example, on the base element 72 of the suction head housing 68 and / or on the first side 80 of the suction head housing 68. For example, the opening device 88 sits at least approximately at the level of the fixing device 52 on the suction head housing 68 with respect to the height direction 32.

A holding device 92 for arranging a cable 94 of the suction device 10 and an air outlet of a duct device 96 for guiding process air to the suction head 20 are arranged on a second side 90 of the suction device 10 facing away from the first side 80 and / or of the suction head housing 68. The second side 90 is a side of the suction device 10 and / or the suction head housing 68 facing away from the first side 80 and / or the operating element device 82. For example, the first side 80 and the second side 90 are on different sides of a longitudinal center axis 28 Arranged level.

The cable 94 is, for example, a connection cable for the suction device 10 Supply of the suction device 10 with electrical energy.

For example, the cable 94 is passed through a cable outlet 98 from the interior 70 of the suction head housing 68 to the outside and is accessible there by an operator of the suction device 10.

The cable outlet 98 is arranged and / or formed, for example, on the base element 72 of the suction head housing 68. For example, the cable outlet 98 is arranged in a circumferential direction 100 of the suction device 10 and / or the suction head housing 68 at a distance from an air outlet 101 of the duct device 96, the circumferential direction 100 lying in a plane oriented perpendicular to the longitudinal center axis 28.

For example, the cable outlet 98 lies at least approximately at the same height as the duct device 96 with respect to the height direction 32.

The duct device 96 serves to guide process air in the interior 70 of the suction head housing 68.

In particular, the duct device 96 is not provided for guiding a flow of cooling air. The cooling air flow is guided by means of the cooling air guiding device 84 and / or by means of the opening device 88.

The air outlet 101 of the duct device 96 has a first air outlet 102 and a second air outlet 104. The first air outlet 102 and the second air outlet 104 are arranged and / or formed on the suction head housing 68. For example, the first air outlet 102 and / or the second air outlet 104 are at least partially arranged and / or formed on the base element 72 and / or on the hood element 74. For example, the first air outlet 102 and / or the second air outlet 104 are each arranged and / or formed in half on the base element 72 and on the hood element 74. The channel device 96 comprises a first channel 106 assigned to the first air outlet 102 and a second channel 108 assigned to the second air outlet 104. By means of the first channel 106, process air to be extracted from the interior 70 of the suction head housing 68 can be fed to the first air outlet 102. By means of the second channel 108, process air to be coupled out of the interior space 70 can be guided to the second air outlet 104.

The first channel 106 extends along a first longitudinal center axis 110 and the second channel 108 extends along a second longitudinal center axis 112. The first longitudinal center axis 110 and the second longitudinal center axis 112 are at least approximately in a transverse and in particular perpendicular to the longitudinal center axis 28 of the suction device 10 oriented level.

During operation of the suction device 10, a main flow direction of air flowing through the first channel 106 and / or the second channel 108 is oriented approximately parallel to the first longitudinal center axis 110 or the second longitudinal center axis 112.

The first longitudinal center axis 110 is oriented transversely to the second longitudinal center axis 112. For example, a smallest angle 114 between the first longitudinal center axis 110 and the second longitudinal center axis 112 is approximately 40 ° to 50 °.

The first air outlet 102 is circular and / or has a circular outer contour 116. For example, the first air outlet 102 is designed as a circular opening on the suction head housing 68, for example on the base element 72 and / or on the hood element 74.

The first channel 106 comprises a flow space 118 for air, which is delimited by a wall element 120 of the first channel 106. At- For example, the wall element 120 delimits the flow space 118 in a plane oriented transversely and in particular perpendicular to the longitudinal center axis 110 of the first channel 106.

The first channel 106 and / or the wall element 120 have a cylindrical shape.

A flow cross section 122 of the flow space 118 of the first channel 106, which is oriented transversely and in particular perpendicularly to the first longitudinal center axis 110, is at least approximately constant.

The first channel 106 and the second channel 108 are in particular each arranged in the interior 70 of the suction head housing 68.

The second air outlet 104 is essentially rectangular. An outer contour 124 of the second air outlet 104 has a first edge section 126, a second edge section 128 following the first edge section 126, a third edge section 130 following the second edge section 128 and a fourth edge section 132 following the third edge section 130 , wherein the fourth edge portion 132 is arranged between the third edge portion 130 and the first edge portion 126.

The first edge section 126 and the third edge section 130 are arranged opposite one another and are each oriented transversely and in particular perpendicular to the longitudinal center axis 28 of the suction device 10. For example, the first edge section 126 and the third edge section 130 are at least approximately parallel to one another.

The second edge section 128 is arranged facing the first air outlet 102. In particular, the second edge section 128 extends at least approximately parallel to the longitudinal center axis 28 of the suction Device 10.

The first edge section 126, the second edge section 128 and the third edge section 130 lie at least approximately in a geometric rectangle.

The fourth edge section 132 has a first section 134 and a second section 136 following the first section 134. The first sub-section 134 lies between the third edge section 130 and the second sub-section 136. The second sub-section 136 lies between the first sub-section 134 and the first edge section 126.

The first sub-section 134 is, for example, oriented at least approximately perpendicular to the third edge section 130 and / or parallel to the longitudinal center axis 28. The second subsection 136 is oriented, for example, transversely to the first subsection 134 and transversely to the first edge section 126.

The first air outlet 102 and the second air outlet 104 are arranged in the circumferential direction 100 of the suction head housing 68 on the suction head housing 68 at a distance A1 from one another.

For example, a shortest distance A1 between the first air outlet 102 and the second air outlet 104 is approximately 1 cm to 7 cm. In particular, the shortest distance A1 corresponds to a shortest distance between the outer contour 116 of the first air outlet 102 and the outer contour 124 of the second air outlet 104, for example a shortest distance between the outer contour 116 and the second edge section 128.

The outer contour 116 of the first air outlet 102 has a first center point 138 and the outer contour 124 of the second air outlet 104 has a second center point 140, the first center point 138 to the second center point 140 is spaced apart in the circumferential direction 100 of the suction head housing 68.

The first center point 138 and the second center point 140 are at least approximately at the same height with respect to the height direction 32.

The first air outlet 102 has a lower end 142 and an upper end 144 spaced apart from the lower end 142 in the height direction 32. The second air outlet 104 has a lower end 146 and an upper end 148 spaced apart from the lower end 146 in the height direction 32.

The lower end 142 of the first air outlet 102 and the lower end 146 of the second air outlet 104 are at least approximately at the same height with respect to the height direction 32.

The upper end 144 of the first air outlet 102 and the upper end 148 of the second air outlet 104 are at least approximately at the same height with respect to the height direction 32.

The second channel 108 comprises a flow space 149 for air, which is delimited by a first wall element 150 and a second wall element 152 spaced apart from the first wall element 150. The first wall element 150 and the second wall element 152 delimit the flow space 149 in particular in a plane oriented transversely and in particular perpendicular to the longitudinal center axis 28 of the suction device 10.

In the height direction 32, the second channel 108 is delimited by wall elements arranged and / or formed on the suction head housing 68 (not shown).

The first wall element 150 is oriented transversely to the wall element 120 of the first channel 106. For example, a smallest angle between see the first wall element 150 and the wall element 120 about 40 °. In particular, the first wall element is straight and / or flat.

The first wall element 150 of the second channel 108 is arranged adjacent to the wall element 120 of the first channel 106. For example, the first wall element 150 intersects the second wall element 120 in an end or end region of the first channel 106 or of the second channel 108 facing away from the first air outlet 102 and / or the second air outlet 104.

The second wall element 152 has a curved shape, in particular a shape that is curved towards the longitudinal center axis 28 of the suction device 10.

A flow cross section 154 of the second channel 108 that is oriented transversely and in particular perpendicular to the second longitudinal center axis 112 increases in the direction of the second air outlet 104. For example, the flow cross section 154 corresponds to a shortest distance between the first wall element 150 and the second wall element 152.

The flow cross section 154 of the second channel 108 is, for example, the largest at an end 156 of the second channel 108 facing the second air outlet 104 and / or smallest at an end 158 of the second channel 108 facing away from the second air outlet 104.

In the exemplary embodiment shown, the first air outlet 102 and / or the second air outlet 104 are each or comprise a single opening. In principle, it is also possible that the first air outlet 102 and / or the second air outlet 104 each have a plurality of openings, the openings being arranged, for example, in rows and / or columns. For example, the openings are arranged in the form of a grid and / or through a grid educated.

At the end 158 facing away from the second air outlet 104, the second channel 108 has an air inlet opening 160 which is arranged in the interior 70 of the suction head housing 68.

The first channel 106 has an air inlet opening 164 at an end 162 facing away from the first air outlet 102.

By means of the air inlet opening 164 of the first channel 106 and the air inlet opening 160 of the second channel 108, an air flow to be coupled out from the interior 70 of the suction head housing 68 can be fed to the first channel 106 or the second channel 108.

To supply an air flow to be decoupled from the suction head housing 68 from the suction fan device 22 to the first air outlet 102 and / or the second air outlet 104, a connecting channel 166 is provided, which is in the direction of a main flow direction 168 of the air flow to be coupled between an outlet 170 of the Sauggebläseeinrich device 22 and the first air outlet 102 and / or the second air outlet 104 is arranged. This connecting channel 166 is assigned to the channel device 96.

A main flow direction 168 of the air flow to be coupled out lies, for example, at least approximately in a plane oriented transversely and in particular perpendicular to the longitudinal center axis 28.

Process air, which is sucked in during operation of the suction device 10 by means of the suction fan device 22 via the suction connection 34 and the input 62, is coupled out of the suction fan device 22 from the output 170. By means of the connecting channel 166 is within the suction head housing 68 a fluid-active connection between the output 170 and the first air outlet 102 and / or the second air outlet 104 is established.

It can be provided that the outlet 170 of the suction fan device 22 is assigned an outlet channel 172 which, with respect to the main flow direction 168, is arranged between the outlet 170 and the connecting channel 166. For example, a flow cross section of the outlet channel 172 is at least approximately constant.

The outlet channel 172 and / or the connecting channel 166 surround the suction fan device 22 in a plane oriented transversely and in particular perpendicular to the longitudinal center axis 28 of the suction device 10. The outlet channel 172 and / or the connecting channel 166 have in particular a curved shape, in particular a shape curved towards the longitudinal center axis 28 of the suction device 10.

For example, the connecting channel 166 surrounds the suction fan device 22 in a semicircle.

Correspondingly, the main flow direction 168 of an air flow guided through the connecting duct 166 has a curved path and in particular a path curved towards the longitudinal center axis 28 of the suction device 10.

The outlet channel 172 is arranged further inward than the connecting channel 166 in relation to a transverse direction 174, which lies in a plane oriented transversely and in particular perpendicular to the longitudinal center axis 28 and lies in a plane oriented transversely and in particular perpendicular to the longitudinal center axis 28, only one of these directions being indicated by way of example in the figures)

It can be provided that between the output channel 172 and the Connecting channel 166, a transition region 176 is formed, by means of which a transition of an air flow from the outlet channel 172 into the connec tion channel 166 is realized.

For example, when the suction device 10 is in operation, the main flow direction 168 is reversed at the transition region 176 by approximately 180 °.

The connecting channel 166 is set up and designed in such a way that by means of the connecting channel 166 an air flow to be coupled out from the suction head 20 is divided and / or distributed between the first channel 106 and the second channel 108. For this purpose, it can be provided in particular that one or more air guide elements 178 are arranged within the connecting channel 166.

In the embodiment shown, two spaced-apart air guide elements 178a and 178b are provided, the air guide element 178b being arranged further inward with respect to the transverse direction 174 than the air guide element 178a. The air guide elements 178a and 178b are in particular oriented at least approximately parallel to one another.

The air guide element 178 is, for example, rib-shaped and / or designed as a rib. For example, the air guide element 178 has a curved shape and in particular a shape curved towards the longitudinal center axis 28 of the suction device 10.

The air guide element 178 extends along a longitudinal center axis 180. For example, a smallest angle 182 between the longitudinal center axis 180 and the first longitudinal center axis 110 of the first channel 106 is approximately 30 ° to 40 °.

For example, the longitudinal center axis 180 of the air guiding element 178 is at least approximately parallel to the first wall element 150 of the second channel 108 oriented.

The connecting channel 166 has a first partial region 183a, in which a flow cross section 984 of the connecting channel 166 is at least approximately constant.

For example, the first partial area 183a is spatially an area facing the first side 80 of the suction device 10 and / or the first partial area 183a is arranged at least in sections with respect to the transverse direction 174 between the suction fan device 22 and the first side 80 of the suction device 10. With regard to the main flow direction 168, the first sub-area 183a is an area following the outlet 170 and / or the outlet channel 172.

With respect to the transverse direction 174, the outlet channel 172 is spatially arranged between the suction fan device 22 and the first partial area 183a of the connecting channel 166.

The connection channel 166 extends in the interior 70 of the suction head housing 68 from the first sub-area 183a into a second sub-area 183b of the connection channel 166, the flow cross-section 984 of the connection channel 166 being within the second sub-area 183b compared to the flow cross-section 984 within the first sub-area 183a expanded.

For example, the flow cross-section 984 of the connecting channel 166 is greatest at an end region 183c of the second sub-region 183b that is located the first channel 106 and / or the second channel 108.

For example, the flow cross section 984 of the second partial area 183b of the connecting channel 166 is at an end area 183d of the second partial area 183b of the connecting channel facing the first partial area 183a 166 smallest.

The second sub-area 183b is, for example, spatially an area facing the second side 90 and / or is arranged, for example, at least in sections with respect to the transverse direction 174 between the suction fan device 22 and the second side 90 of the suction device 10.

In particular, the second partial area 183b is an area facing the first channel 106 and / or the second channel 108. For example, the connecting channel 166 opens into the first channel 106 and / or the second channel 108 in the second partial region 183b.

The air guiding elements 178 are arranged in the second partial region 183b of the connecting channel 166 and / or are arranged at a distance from the respective air inlet openings 164 or 160 of the first channel 106 or the second channel 108.

In one embodiment, a connection device 184 is assigned to the first air outlet 102, which, for example, is at least partially arranged and / or formed on the first air outlet 102 and / or the first channel 106. By means of the connection device 184, a fluidly effective releasable connection can be established between the first air outlet 102 and an adapter device 186.

For example, one or more rib elements 986 for supporting and / or guiding the adapter device 186 are arranged on the first air outlet 102 and / or on the first channel 106. By means of the rib elements 986, the adapter device 186 can be arranged, for example, in a defined position on the first air outlet 102 and / or the first channel 106 and / or introduced into the first air outlet 102 and / or the first channel 106. For example, the rib elements 986 are oriented at least approximately parallel to the first longitudinal center axis 110 of the first air outlet.

The adapter device 186 is part of a tubular element 186a of the suction device 10 (indicated in FIGS. 2 and 4). For example, the pipe element 186a is a suction hose of the suction device 10 or part of a suction hose. As a result, an air flow can be coupled into the pipe element 186a, as a result of which, for example, a blowing function can be implemented by means of the pipe element 186a.

The suction device 10 comprises a closure device 185 which is assigned to the second air outlet 104 and which can assume a first state and a second state. The closure device 185 is set up and designed in such a way that in the first state of the closure device 185 a decoupling of process air through the second air outlet 104 is enabled and in the second state of the closure device 185 a decoupling of process air through the second air outlet 104 is blocked is.

In the exemplary embodiment shown, the closure device 185 can be controlled by means of the adapter device 186. The locking device 185 assumes the first state when the adapter device 186 is separated from the connecting device 184 and assumes the second state when the adapter device 186 is properly connected to the connecting device 185.

The adapter device 186 has, in particular, a shape corresponding to the first air outlet 102 and / or the first channel 106. The adapter device 186 can be introduced into the first channel 106 through the first air outlet 102, for example, or can be arranged such that the first channel 106 is introduced into the adapter device 186. For example, the adapter device 186 has a cylindrical shape. For example, a flow space 187 for air is formed within the adapter device 186.

When the adapter device 186 is properly connected to the connecting device 184, the adapter device 186 is in particular arranged at least partially in the interior space 70 of the suction head housing 68.

For example, the adapter device 186 comprises a mechanical connection element 188, for example a latching element, wherein a detachable connection can be established between the adapter device 186 and the connection device 184 by means of the connection element 188.

The channel device 96 and / or the closure device 185 are set up and designed in such a way that the second channel 108 within the suction head housing 68 is closed in a fluid-tight manner with respect to the connection channel 166 when the adapter device 186 is properly connected to the connection device 184. In this case, process air to be coupled out by means of the duct device 96 is coupled out exclusively via the first duct 106 and the first air outlet 102.

When the adapter device 186 is separated from the connecting device 184, both the first channel 106 and the second channel 108 are fluidically connected to the connecting channel 166 in the interior 70, so that one of the process air can be decoupled by means of the first channel 106 and the first Air outlet 102 as well as by means of the second channel 108 and the second air outlet 104 can take place.

The closure device 185 is assigned a wall element which can assume a first position in which the air inlet opening 160 of the second channel 107 is exposed and which can assume a second position in which the air inlet opening 160 by means of the wall elements 189 is blocked.

In the exemplary embodiment shown, the wall element assigned to the closure device 185 is formed on the adapter device 186.

The air inlet opening 160 of the second channel 108 is blocked and / or closed by means of a wall element 189 of the adapter device 186 when the adapter device 186 is properly connected to the connecting device 184. For example, the wall element 189 is then arranged in the interior 70 of the suction head housing 68 and / or covers the air inlet opening 160 (second position of the wall element 189).

When the adapter device 186 is separated from the connecting device 184, the air inlet opening 160 is released (first position of the wall element 189).

The wall element 189 has, for example, a cylindrical shape and / or delimits the flow space 187 for air formed within the adapter device 186.

In particular, the connection device 184 for the first air outlet 102 is designed in the same way as the connection device 36 for the suction connection 34, so that, for example, the pipe element 186a can also be detachably connected to the connection device 36 for the suction connection 34 by means of the adapter device 186 with the connection device 36 for the suction connection 34.

A center point 190 and / or center of gravity of the suction fan device 22 is arranged on a first side 194 with respect to a center plane 192 of the suction device 10 running through the longitudinal center axis 28. The connecting channel 166 is arranged essentially on a second side 196, the second side 196 being opposite the first side 194 with respect to the central plane 192. The first air outlet 102 is arranged on the second side 196 with respect to the central plane 192 and the second air outlet 104 is arranged on the first side 194 with respect to the central plane 192.

The suction device 10 has a handle bar 202 which is pivotably mounted on the suction head 20 and which is arranged in an upper end region 204 of the suction device 10 and / or of the suction head 20 with respect to the height direction 32. For example, the handle bar 202 is U-shaped.

The handle bar 202 can be pivoted from a first position 203a (see FIG. 2) into a second position 203b (see FIG. 1). In the first position 203a, the handle 202, with proper positioning of the Saugvorrich device 10 in an operating state, is aligned approximately horizontally. In the second position 203b, the handle 202 is directed approximately vertically.

The handle bar 202 forms, in particular, at least in sections, an outer contour of the suction head housing 68 when the handle bar is in the first position 203a.

In the exemplary embodiment shown, the handle bar 202 is oriented in the first position 203a at least approximately parallel to the top side 78 of the cover element 76.

For example, the handle bar 202 in the second position 203b lies at least approximately in a central plane (not shown) running through the longitudinal central axis 28 of the suction device 10.

When the handlebar 202 is in the first position 203a, an upper area 205 of the handlebar 202 with respect to the height direction 32 lies at least approximately at the level of the upper side 78. The handlebar 202 has a first leg element 206 and a second leg element 208, the first leg element 206 and the second leg element 208 being connected to one another by means of a grip element 210.

The first leg element 206 and the second leg element 208 are each connected to the suction head housing 68 by means of a swivel joint 212. The pivot joints 212 are arranged in the upper end region 204 of the suction head 20.

For example, the first leg element 206 is pivotably connected to the suction head 20 by means of a first pivot joint 212a and the second leg element 208 by means of a second pivot joint 212b.

With regard to the transverse direction 174, which lies in a plane oriented transversely and in particular perpendicular to the longitudinal center axis 28, the pivot joints 212 are arranged in an outer region 214 and / or edge region of the suction head housing 68. For example, the pivot joints 212 lie at least approximately in a central plane (not shown) running through the longitudinal central axis 28.

The outer area 214 and / or edge area is to be understood as an area lying on the outside of the suction head housing 68 with respect to a direction oriented transversely and in particular perpendicular to the longitudinal center axis 28.

The holding device 92 is assigned a spatial receiving area 216 which is formed on an outer side 218 of the suction head housing 68.

The handle bar 202 adjoins the receiving area 216 and / or delimits the receiving area 216 when the handle bar 202 is in the first position 203a. The outer side 218 is to be understood as a side of the suction head housing 68 and / or of the suction head 20 facing away from the interior 70. In particular, the outer side 218 is a side facing an operator of the suction device 10.

The holding device 92 and the receiving area 216 are arranged between the channel device 96 and the cover element 76 with respect to the height direction 32.

The holding device 92 and the receiving area 216 are set up and designed in particular for holding the cable 94 and / or for partially receiving the cable 94, for example in a wound state.

In the first position 203a, the handle bar 202 surrounds the cover element 76 in a U-shaped and / or semicircular manner. The cover element 76 lies further inward with respect to the transverse direction 174 than the handle bar 202.

For example, the handle bar 202 adjoins the cover element 76 in the first position 203a. For example, the grip element 210 is arranged in the first position 203a on the second side 90 of the suction device 10.

By means of the handle element 210, the handle bar 202 can be pivoted by an operator from the first position 203a to the second position 203b (and vice versa). In the second position 203b, the grip element 210 is arranged at a distance from the upper side 78 of the suction head housing 68.

The handle element 210 can be grasped and / or grasped by the operator. For example, the suction device 10 can be held and / or moved by gripping the handle element 210.

When the handle 202 is in the first position 203a, a three-dimensional grip area 220 is assigned to the grip element 210 of the handlebar 202. As a result, the handle element 210 can be grasped and / or grasped around by an operator in the first position 203a. The grip area 220 is used in particular to hold the hand and / or fingers of an operator when the water grips the grip element 210 in the first position 203a.

The grip area 220 is in particular formed at least partially in the receiving area 216.

Furthermore, the grip area 220 extends at least partially between the grip element 210 and the outside 218 of the suction head housing 68. For example, a portion of the grip area 220 extends between the grip element 210 and a wall element 221 of the cover element 76 facing the grip element 210 for example, at least approximately parallel or transverse to the longitudinal center axis 28 of the suction device 10 is oriented.

When the handlebar 202 is in the first position 203a, an upper opening 222 is formed between the handle element 210 of the handlebar 202 and the outside 218 of the suction head housing 68. The upper opening 222 is accessible from above with respect to the height direction 32 and / or with respect to the height direction 32 is arranged at least approximately at the level of the top side 78 of the cover element 76.

Furthermore, a first lateral opening 224 and a second lateral opening 226 spaced from the first lateral opening 224 in the circumferential direction 100 are formed between the handle element 210 and the outside 218 when the handlebar 202 is in the first position 203a. The first lateral opening 224 and the second lateral opening 226 are arranged on the second side 90 of the suction device 10 and / or are accessible from the second side 90 of the suction device 10. The holding device 92 is arranged between the first lateral opening 224 and the second lateral opening 226. In particular, the first lateral opening 224 and the second lateral opening 226 each extend in a surface which is oriented transversely and in particular perpendicular to a surface in which the upper opening 222 extends.

For example, the first lateral opening 224 and the second lateral opening 226 extend between a bottom section 228, which is formed on the outside 218 of the suction head housing 68 and which delimits the receiving area 216, and the handle element 210 of the handle bar 202.

For example, the upper opening 222 extends between the grip element 210 and the wall element 221 of the cover element 76.

The bottom section 228 is formed on a wall element 229 of the suction head housing 68, which is arranged in the height direction 32 between the channel device 96 and the receiving area 216. The holding device 92 is arranged on the wall element 229.

When the handlebar 202 is in the first position 203a, the receiving area 216 is accessible via the upper opening 222, the first lateral opening 224 and the second lateral opening 226, for example for an operator's hand to grip the handle element 210.

On the outside 218 of the suction head housing 68, a particularly flat contact area 230 is formed, which at least in sections adjoins the receiving area 216 and / or which merges into the receiving area 216. In the first position 203a, the handle 202 rests against the contact area 230 at least in sections.

The contact area 230 is not necessarily formed in a spatially contiguous manner. In the example shown, the contact area 230 comprises a first Partial area 230a for contacting the first leg element 206 of the handle 202 and a second partial area 230b for contacting the second leg element 208. For example, the first partial area 230a and the second partial area 230b are arranged opposite one another on the suction head housing. For example, the first sub-area 230a and the second sub-area 230b are arranged on different and / or opposite sides of the cover element 76 of the suction head housing 68.

The contact area 230 lies, for example, in a plane oriented transversely and in particular perpendicular to the longitudinal center axis 28. The contact area 230 extends in the outer area 214 and / or the edge area of the suction head housing 68 between the pivot joints 212 and the receiving area 216.

For example, the contact area 230 and / or the first sub-area 230a and / or the second sub-area 230b merge into a transverse section 232 formed on the outside 218, which borders the receiving area 216. This transverse section 232 is oriented transversely to the contact area 230 and / or to the base section 228. The transverse section 232 is arranged between the bottom section 228 and the contact area 230.

For example, a smallest angle between the transverse section 232 and the bottom section 228 is approximately 65 °.

The holding device 92 and the associated receiving area 216 are formed at least approximately mirror-symmetrically to a plane, for example mirror-symmetrically to the center plane 192 running through the longitudinal center axis 28.

The holding device 92 and the associated receiving area 216 are arranged with respect to the transverse direction 174 in the outer area 214 and / or edge area of the suction head housing 68, the holding device 92 on one Outer contour 234 of the suction head housing 68 is arranged.

The outer contour 234 is a boundary line and / or boundary surface which is on the outside of the suction head housing 68 in relation to the transverse direction 174 and which is oriented in the circumferential direction 100, for example. For example, the outer contour 234 has at least approximately a constant curvature and / or a constant radius of curvature.

For example, the outer contour 234 runs through outer sides 235 of the suction head housing 68 which are located in the outer area 214 and / or edge area and adjoin the receiving area 216 in the circumferential direction 100.

The receiving area 216 is designed as an indentation with respect to the outer contour 234.

The receiving area 216 extends inwards from the outer contour 234 and / or from the holding device 92 (towards the cover element 76 and / or towards the longitudinal center axis 28).

The holding device 92 extends in the height direction 32 from a lower end 236 to an upper end 238 of the receiving area 216. For example, the bottom section 228 lies at the level of the lower end 236 and the transverse section 232 runs between the lower end 236 and the upper end 238.

For example, the holding device 92 is designed as a hook element 239 or comprises a hook element 239.

The holding device 92 comprises a second region 240, which is arranged in an upper end region 242 of the holding device 92. The second area 240 is connected to a first area 244 of the holding device 92, the first area 244 being connected to the suction head housing 68. For example, the second area 240 is connected to the first area 244 by means of a screw connection. The first area 244 is, for example, connected in one piece to the suction head housing 68.

The second area 240 projects beyond the first area in the transverse direction 174. For example, the second region 240 protrudes beyond the first region 244 in the transverse direction 174 to the cover element 76 and / or to the longitudinal center axis 28.

The holding device 92 has a width B1, a width direction being oriented in the circumferential direction 100 of the suction head housing 68. The width B1 is greatest at a lower end 246 of the holding device 92 and smallest at an upper end 248 of the holding device 92.

The lower end 246 is level with the lower end 236 of the receiving area 216 and the upper end 248 is level with the upper end 238 of the receiving area 216.

The holding device 92 has an upper end face 250 which is oriented at least approximately parallel to the contact area 230. For example, the upper end face lies at least approximately at the level of the contact area 230 with respect to the height direction 32. For example, the contact area 230 and the upper end face 250 are at least approximately in one plane.

For example, the handle element 210 of the handlebar 202 rests on the upper end face 250 when the handlebar 202 is in the first position 203a. For example, the upper end face 250 forms a contact area for the handle bar 202 and / or the handle element 210.

The holding device 92 has an outer side 252 which receiving area 216 and / or the longitudinal center axis 28 is facing away. This outer side 252 lies in the outer contour 234, for example.

It can be provided that the handle bar 202 is assigned a locking device 254, by means of which the handle bar 202 can be fixed and / or latched and / or locked in the first position 203a. For example, the handle bar 202 can be fixed and / or latched and / or latched in the first position 203a on the holding device 92 by means of the locking device 254.

In one embodiment, the handlebar 202 is assigned a spring device 256, by means of which the handlebar 202 can be transferred from the first position 203a to the second position 203b in the direction of or against a spring force exerted by the spring device 256. For example, the spring device 256 is arranged or formed on at least one of the pivot joints 212.

The first pivot joint 212a comprises a pin element 258 which is arranged and / or formed on the first leg element 206. When the handle 202 is properly positioned on the suction device 10, this pin element 258 extends from the first leg element 206 in the direction of the cover element 76 of the suction head 20.

For example, the first pivot joint 212a and / or the pin element 258 are arranged on an end 259 and / or end region of the handle bar 202 lying on the cover element 76.

The first pivot joint 212a further comprises a sleeve element 260 for the rotatable mounting of the pin element 258. For example, the pin element 258 can be received by means of the sleeve element 260 and / or Trunnion element 258 can be inserted into sleeve element 260.

For example, the pin element 258 can be arranged on the sleeve element 260 and / or can be inserted into the sleeve element 260 towards the cover element 76.

The sleeve element 260 is arranged and / or formed on the cover element 76. For example, the sleeve element 260 is designed as an indentation on a wall element 262 of the cover element 76 facing the first leg element 206 and / or the pin element 258.

The wall element 262 is followed, for example, in the circumferential direction 100 by the wall element 221 of the cover element 76, which faces the handle element 220 when the handle bar 202 is in the first position 203a.

In the exemplary embodiment shown, the first swivel joint 212a is designed in the same way as the second swivel joint 212b.

By means of the first pivot joint 212a and / or the second pivot joint 212b, the handle bar 202 can be pivoted about a pivot axis 264 and / or axis of rotation, which is, for example, oriented transversely and in particular perpendicular to the longitudinal center axis 28 and / or to the height direction 32.

In one embodiment, a limiting element 266 assigned to the first pivot joint 212a is provided, by means of which a movement of the first leg element 206 in a direction away from the cover element 76 is blocked when the handlebar 202 is in the second position 203b. Accordingly, it can be provided that the second pivot joint 212b is assigned a limiting element 266.

The delimiting element 266 is spaced apart from in the example shown the cover element 76 and / which is arranged at a distance from the sleeve element 260 on the suction head 20. The delimitation element 266 is arranged in a region 268 lying on the pivot joint 212a.

For example, the delimitation element 266 is arranged on the first partial area 230a of the contact area 230. For example, the limiting element 266 is designed as an elevation.

The handle 202 comprises an inner wall element 268 facing the cover element 76 and an outer wall element 270 facing away from the cover element 76. The pin element 258 is arranged in particular on the inner wall element 268.

In particular, an intermediate space 272 is formed between the inner wall element 268 and the outer wall element 270, which is open in particular to an underside 274 of the handlebar 202, the underside 274 facing the contact area 230 when the handlebar is in the first position 203a is located.

In the space 272, for example, one or more rib elements 276 are arranged, which are arranged between the inner wall element 268 and the outer wall element 270. For example, the rib elements 276 are oriented transversely and in particular perpendicular to the inner wall element 268 and / or the outer wall element 270.

The delimitation element 266 is arranged at least in sections in the intermediate space 272 and / or is arranged at least in sections between the inner wall element 268 and the outer wall element 270.

If the handlebar 202 is in the second position 203b, that is Limiting element 266 arranged between the outer wall element 270 and a stop element 278. This stop element 278 can be placed against the delimitation element 266 and thereby prevents the first leg element 206 from moving in a direction away from the cover element 76 when the handle 202 is in the second position.

The interaction of the limiting element 266 and the stop element 278 prevents the first leg element 206 from moving in a direction away from the cover element 76 when the handle 202 is in the second position 203b. This prevents the pin element 258 from moving out of the sleeve element 260 in the second position 203b.

The stop element 278 can be pivoted and / or rotated relative to the limiting element about the pivot axis 267, so that a movement of the handlebar 202 from the second position 203b into the first position 203a is possible.

For example, the stop element 278 is arranged in the space 272 between the outer wall element 270 and the inner wall element 268. For example, the stop element 278 is arranged on a rib element 276a, which is oriented transversely and in particular perpendicular to the inner wall element 268 and / or the outer wall element 270. The stop element 278 is oriented, for example, transversely and in particular perpendicular to the rib element 276a.

Provision can be made for a recess 280 to be formed on the rib element 276a, the limiting element 266 being able to be passed through the recess 280 at least in sections or being passed through when the handle 202 is moved from the second position 203b to the first position 203a . In the first position 203a, the limiting element 266 is arranged at a distance from the stop element 278. The stop element 278 can then be moved relative to the delimiting element 266, in particular without being hindered by the delimiting element 266. For example, in the first position 203a, the handle bar 202 can be moved between a first position in which the delimitation element 266 rests against the outer wall element 270 and a second position in which the delimitation element 266 rests against the inner wall element 268 (see FIG. 14 and 15).

In the first position, the pin element 258 is arranged in the sleeve element 260. In the second position, the pin element 258 is arranged outside of the sleeve element 260. As a result, the handle 202 can be mounted and / or removed from the suction head 20 in the first position 203a without tools.

The suction device according to the invention works as follows:

To carry out a suction process by means of the suction device 10, an operator connects, for example, the suction hose of the suction device 10 to the suction connection 34. The operator then switches on the suction device 10, for example via the operating element device 82. Corresponding parameters of the suction process can be controlled, for example, by the operator via the operating element device 82.

By means of the suction fan device 22 (dirty) process air is coupled through the suction connection 34 into the receiving space 14 of the suction material container 12.

The dirt portion of the coupled-in process air is released into the receiving space 14 of the suction material container 12 and / or to the dirt side 64 of the filter unit 56. (Clean) process air is coupled into the suction fan device 22 via the clean side 60 of the filter unit 56. This process air is then extracted from the suction head 20 by means of the duct device 96 via the first air outlet 102 and the second air outlet 104.

To empty the suction material container 12, the fixing device 52 is opened and then the suction head 20 is lifted upwards from the suction material container 12 by means of the handle 202. For this purpose, the handle bar 202 is transferred to the second position 203b by the operator. After the suction material container 12 has been emptied, the suction head 20 is placed back onto the suction material container 12 by means of the handle 202 and is fixed to it with the fixing device 52.

To carry out a blowing process by means of the suction device 10, the suction hose is connected to the connection device 184 of the first air outlet 102 by means of the adapter device 186.

As a result, the closure device 185 is transferred from the first state to the second state, so that no process air is coupled out of the suction head 20 through the second air outlet 104. The process air is then coupled out via the first air outlet 102 and in particular exclusively via the first air outlet 102.

The process air is thereby coupled into the suction hose and decoupled again at one end of the suction hose so that the blowing function can be used by the operator by means of the suction hose.

To mount the suction device 10, the suction hose is detached from the suction connection 34 and / or from the connecting device 184, for example. For example, the suction hose can be fastened and / or stored on the suction head 20 by means of the holding element 79. The cable 94 of the suction device 10 can be held and / or stored on the suction head 20 by means of the holding device 92 and the receiving area 216 assigned to the holding device 92.

To arrange the cable 94 in the receiving area 216, the operator transfers the handle 202 to the second position 203b so that the receiving area 216 on the suction head 20 is accessible from above (see, for example, FIG. 1). In this state, the cable 94 can be arranged in the receiving area 216 and there, for example, rolled up and / or arranged as a loop.

The handlebar 202 is then transferred, for example, to the first position 203a by the operator, so that the handlebar 202 adjoins the receiving area 216. In this position of the handle 202, a movement of the cable 94 arranged in the receiving area 214 in an upward direction and in the transverse direction 174 outward is blocked (see, for example, FIG. 2).

To remove the cable 94 from the receiving area 216, the operator transfers the handlebar from the first position 203a to the second position 203b, so that the cable 94 can be removed from the receiving area 216 upwards (see, for example, FIG. 1).

For tool-free dismantling of the handle 202, it is moved into the first position 203a. The first leg element 206 is pushed outward from the cover element 76 by an operator until the delimiting element 266 rests against the inner wall element 268 and / or until the pin element 258 has moved away from the sleeve element 260 (see FIG. 15). The first leg element 206 can then be moved upwards away from the suction head with the pin element 258 uncoupled. This is then done when the first leg element 206 is unhooked is repeated accordingly with the second leg element 208, so that the handle 202 is released from the suction head 20. For tool-free assembly, the steps mentioned are carried out in reverse order.

List of reference symbols

Al distance

Bl width

10 suction device

12 suction material container

14 recording room

16 floor element

18 wall element

20 suction head

22 Suction fan device

24 engine

26 blower unit

28 longitudinal center axis

30 Direction of gravity

32 Height direction

34 Suction connection

36 Connection device

38 opening

40 stands

42 Recording area

43 paragraph

44 Rollers 46 Suction material container lid 48 Underside 50 Support area 52 Fixing device 54 Latching element 56 Filter unit 58 Main flow direction 60 Clean side entry

Dirty side

Filter holder

Suction head housing

inner space

Basic element

Hood element

Cover element

Accessory retainer

Top

Retaining element first side

Control element device

Cooling air ducting device

Cooling air space

Opening device second side

Holding device

cable

Duct setup

Cable outlet

Circumferential direction

Air outlet, first air outlet, second air outlet, first channel, second channel, first longitudinal center axis, second longitudinal center axis

angle

Outer contour

Flow space Wall element

Flow cross-section

Outer contour, first edge section, second edge section, third edge section, fourth edge section, first section, second section, first center point, second center point, lower end, upper end, lower end, upper end

Flow space first wall element second wall element

Flow cross-section

end

Air inlet opening

end

Air inlet opening

Connection channel

Main flow direction

exit

Output channel

Transverse direction

Transition area

Air control element a air control element b air control element

Longitudinal central axis

Angle a first sub-area b second sub-area c end area d end area

Flow cross-section

Connecting device

Locking device

Adapter device

Rib element a tubular element

Flow space

Connecting element

Wall element

Focus

Middle plane first side second side

Handlebar a first position b second position upper end area upper area first leg element second leg element

Handle element

Swivel joint a first swivel joint b second swivel joint

Outside area / edge area Receiving area outside grip area wall element upper opening first lateral opening second lateral opening bottom section wall element contact area a first sub-area b second sub-area transverse section outer contour outer side lower end upper end hook element second area upper end area first area lower end upper end upper face outer side

Locking device

Spring device

Tenon element

end

Sleeve element

Wall element

Swivel axis Boundary element inner wall element outer wall element

Space

bottom

Rib element a rib element

Stop element

Recess

Claims

1. Suction device, comprising a suction head (20), a suction material container (12) for receiving suction material, a suction fan device (22) arranged on the suction head (20) and a duct device (96) assigned to the suction fan device (22) for guiding Process air at the suction head (20), the duct device (96) having at least a first air outlet (102) and a second air outlet (104), and the duct device (96) having a first duct (106) assigned to the first air outlet (102) for supplying air to the first air outlet (102) and a second channel (108) assigned to the second air outlet (104) for supplying air to the second air outlet (104), characterized by a tubular element (186a) with an adapter device ( 186), wherein the adapter device (186) for performing a suction process can be or is releasably connected to a suction connection (34) of the suction device in a fluid-effective manner, and the adapter device (18 6) is or is connected to the first air outlet (102) in a fluidly effective releasable manner to carry out a blowing process, and an air inlet opening (160) of the second channel (108) for supply by means of at least one wall element (189) of the adapter device (186) of process air from the suction fan device (22) to the second air outlet (104) is closed when the adapter device (186) is properly connected to the first air outlet (102).

2. Suction device according to claim 1, characterized in that the air inlet opening (160) of the second channel (108) is arranged in a transition area between a connecting channel (166) of the channel device (96) and the second channel (108), wherein by means of the Connection channel (166) process air can be fed from the suction fan device (22) to the first channel (106) and / or the second channel (108).

3. Suction device according to claim 1 or 2, characterized in that the air inlet opening (160) of the second channel (108) is released when the adapter device (186) is separated from the first air outlet (102).

4. Suction device according to one of the preceding claims, characterized in that the at least one wall element (189) of the adapter device (186) has a curved shape and / or that the at least one wall element (189) lies in a geometric cylinder section.

5. Suction device according to one of the preceding claims, characterized by a connecting device (184), by means of which the adapter device (186) on the first air outlet (102) can be releasably fixable and / or releasably latched, and / or characterized by a connecting device ( 36), by means of which the adapter device (186) can be releasably fixed and / or releasably latched to the suction connection (34).

6. Suction device according to one of the preceding claims, characterized in that at least one rib element (986) for supporting and / or guiding the adapter device (186) is arranged on the first air outlet (102) and / or on the first channel (106), and in particular characterized in that the at least one rib element (986) is oriented at least approximately parallel to a first longitudinal center axis (110) of the first channel (106).

7. Suction device according to one of the preceding claims, characterized by at least one of the following: the second channel (108) is within the suction head (20) with a connecting channel (166) for supplying process air from the suction fan device (22) to the first channel (106) and / or the second channel (108) in fluid communication, if the adapter device (186) is separated from the first air outlet (102); the second channel (108) is closed fluid-tight within the suction head (20) with respect to a connecting channel (166) for supplying process air from the suction fan device (22) to the first channel (106) and / or the second channel (108) when the Adapter means (186) is properly connected to the first air outlet (102); the first channel (106) is within the suction head (20) with a connecting channel (166) for supplying process air from the suction fan device (22) to the first channel (106) and / or the second channel (108) in fluid communication, if the adapter device (186) is separated from the first air outlet (102); the first channel (106) is within the suction head (20) with a connecting channel (166) for supplying process air from the suction fan device (22) to the first channel (106) and / or the second channel (108) in fluid communication, if the adapter device (186) is properly connected to the first air outlet (102).

8. Suction device according to the preamble of claim 1 or according to one of the preceding claims, characterized in that a smallest angle between a first longitudinal central axis (110) of the first channel (106) and a second longitudinal center axis (112) of the second channel (108) is at least 40 ° and / or at most 70 °.

9. Suction device according to claim 8, characterized in that a smallest angle (114) between the first longitudinal center axis (110) of the first channel (106) and the second longitudinal center axis (112) of the second channel (108) is at least 50 ° and / or at most 60 °.

10. Suction device according to one of the preceding claims, characterized in that a smallest angle between a main flow direction (168) of process air guided through the first channel (106) and a main flow direction (168) of through the second channel (108) guided process air is at least 40 ° and / or at most 70 ° and in particular at least 50 ° and / or at most 60 °.

11. Suction device according to one of the preceding claims, characterized by at least one of the following: a first longitudinal central axis (110) of the first channel (106) and a second longitudinal central axis (112) of the second channel (108) lie at least approximately in a common plane, wherein the plane is oriented transversely and in particular perpendicular to a longitudinal center axis (28) and / or to a height direction (32) of the suction device; a main flow direction of process air guided through the first channel (106) and a main flow direction (168) of process air guided through the second channel (108) lie at least approximately in a common plane, the plane being transverse and in particular perpendicular to a longitudinal one - central axis (28) and / or to a height direction (32) of the suction device is oriented.

12. Suction device according to one of the preceding claims, characterized by at least one of the following: an outer contour (116) of the first air outlet (102) is at least approximately circular; a wall element (120) of the first channel (106), which delimits a flow space (118) for air of the first channel (106), is cylindrical at least in sections and / or segments.

13. Suction device according to one of the preceding claims, characterized in that the first air outlet (102) and the second air outlet (104) are spaced apart in the circumferential direction (100) of the suction head (20), and in particular characterized in that a smallest distance (Al) between the first air outlet (102) and the second air outlet (104) is at least 1 cm and / or at most 7 cm.

14. Suction device according to one of the preceding claims, characterized by at least one of the following: a first center point (138) of an outer contour (116) of the first air outlet (102) and a second center point (140) of an outer contour (124) of the second air outlet ( 104) are at least approximately at the same height with respect to a height direction (32) of the suction device; a lower end (142) of the air outlet (102) and a lower end (146) of the second air outlet (104) are at least approximately at the same height with respect to a height direction (32) of the suction device; an upper end (144) of the first air outlet (102) and an upper end (148) of the second air outlet (104) are at least approximately at the same height with respect to a height direction (32) of the suction device; the second air outlet (104) has a cross-sectional area which is at least 10% and in particular at least 15% and in particular at least 20% larger than the first air outlet (102).

15. Suction device according to one of the preceding claims, characterized by at least one of the following: an outer contour (124) of the second air outlet (104) is essentially rectangular; an outer contour (124) of the second air outlet (104) lies at least in sections in a geometric rectangle; at least three of four edge sections (126, 128, 130) of the outer contour (124) of the second air outlet (104) lie in a geometric rectangle; a fourth edge section (132) of the outer contour (124) of the second air outlet (104) has a first section (134) and a second section (136) adjoining the first section (134), the second Section (136) is oriented transversely to the first section (134); at least one edge portion (126, 128, 130, 132) of the outer contour (124) of the second air outlet (104) is oriented transversely and in particular perpendicular to a height direction (32) of the suction device; an edge section (126, 128, 130, 132) of the outer contour (124) of the second air outlet (104) facing the first air outlet (102) is linear.

16. Suction device according to one of the preceding claims, characterized in that the first channel (106) and the second channel (108) have fluidically separated or fluidically separable flow spaces (118; 149) for air.

17. Suction device according to one of the preceding claims, characterized in that a flow cross section (122) of the first channel (106) is at least approximately constant.

18. Suction device according to one of the preceding claims, characterized in that a flow cross-section (154) of the second channel (108) widens towards the second air outlet (104), and in particular characterized in that the flow cross-section (154) of the second channel (108) is largest at an end (156) of the second air outlet (104) facing the second air outlet (104) and / or is smallest at an end (158) of the second channel (108) facing away from the second air outlet (104) .

19. Suction device according to one of the preceding claims, characterized in that the channel device (96) has a connecting channel (166) for establishing a fluid-effective connection between an outlet (170) of the suction fan device (22) and the first air outlet (102) and / or the second air outlet (104), wherein by means of the connecting channel (166) from the suction head (20 ) air to be coupled to the first channel (106) and / or to the second channel (108) is divided or can be divided.

20. Suction device according to claim 19, characterized by at least one of the following: the connecting channel (166) is arranged in an interior (70) of the suction head (20); the connecting channel (166) has a first partial region (183a) in which a flow cross section (984) of the connec tion channel (166) is at least approximately constant; the connecting channel (166) has a second partial area (183b) adjoining a first partial area (183a), the second partial area (183b) facing the first channel (106) and / or the second channel (108) and wherein a flow cross-section (984) of the connecting channel (166) in the second portion (183b) to the first channel (106) and / or the second channel (108) widens and in particular widened monotonically; the connecting duct (166) surrounds the suction fan device (22) in sections; the connecting channel (166) has a shape curved towards a longitudinal center axis (28) of the suction device, the The longitudinal center axis (28) is oriented in the height direction (32) of the suction device; the connecting channel (166) is with respect to a main flow direction (168) of air coupled out from the suction fan device (22) between an outlet (170) and / or output channel (172) of the suction fan device (22) and the first channel (106 ) and / or the second channel (108) arranged on; a transition area (176) for air is formed between an outlet (170) and / or outlet duct (172) of the suction fan device (22) and the connecting duct (166); a transition area (176) for air formed between an outlet (170) and / or outlet channel (172) of the suction fan device (22) and the connecting channel (166) is designed such that a main flow direction (168) extends from the Suction fan device (22) of extracted air is reversed in the transition region (176) and in particular reversed by at least approximately 180 °.

21. Suction device according to one of claims 19 or 20, characterized by at least one air guiding element (178) for distributing air to be coupled out from the suction head (20) to the first channel (106) and the second channel (108), the at least one air guiding element (178) is arranged in the connecting channel (166) or is assigned to the connecting channel (166).

22. Suction device according to claim 21, characterized by at least one of the following: the at least one air guiding element (178) is oriented transversely to the first channel (106); a smallest angle (182) between a longitudinal center axis (180) of the at least one air guiding element (178) and a first longitudinal center axis (110) of the first channel (106) is at least 20 ° and / or at most 50 ° and in particular at least 30 ° and / or at most 40 °; the at least one air guiding element (178) has a shape which is curved towards a longitudinal center axis (28) of the suction device, the longitudinal center axis (28) being oriented in the height direction (32) of the suction device; the at least one air guiding element (178) is arranged in a partial area (183b) and / or end area (183c) of the connecting channel (166) facing the first channel (106) and / or second channel (108); there are provided an air guiding element (178a) and a further air guiding element (178b) spaced apart from the air guiding element, the air guiding element (178a) and the further air guiding element (178b) in particular being oriented at least approximately parallel to one another.

23. Suction device according to one of the preceding claims, characterized in that a center point (190) and / or center of gravity of the suction fan device (22) with respect to a central plane (192 ) is arranged on a first side (194) and that a connecting channel (166) for supplying air from the suction fan device (22) to the first air outlet (102) and / or to the second air outlet (104) with respect to the central plane (192) is arranged at least in sections on a second side (196) opposite the first side (194).

24. Suction device according to claim 23, characterized in that at least 60% and in particular at least 80% of a cross-sectional area of the connecting channel (166) lie on the second side (196).

25. Suction device according to one of the preceding claims, characterized in that the second air outlet (104) with respect to a central plane (192) of the suction device running through a longitudinal center axis (28) and / or height direction (32) of the suction device on a first side (194 ) is arranged and that the first air outlet (102) is arranged with respect to the center plane (192) on a second side (196) opposite the first side (194).

26. Suction device according to one of the preceding claims, characterized in that a first longitudinal center axis (110) of the first channel (106) is oriented at least approximately parallel to a plane extending through a Hö henrichtung (32) of the suction device.

27. Suction device according to one of the preceding claims, characterized in that a suction connection (34) assigned to the suction fan device (22) and / or an opening device (88) for cooling air and / or an operating element device (82) assigned to the suction fan device (22) Suction device are arranged on a first side (80) of the suction device.

28. Suction device according to one of the preceding claims, characterized in that the first air outlet (102) and / or the second air outlet (104) and / or a receiving area (216) of the suction device for receiving a cable (94) and / or a Holding device (92) of the suction device for a cable (94) are arranged on a second side (90) of the suction device which faces away from a first side (80) of the suction device.

29. Suction device according to one of the preceding claims, characterized in that the duct device (96) and / or the first air outlet (102) and / or the second air outlet (104) with respect to a height direction (32) of the suction device below a receiving area ( 216) of the suction device for receiving a cable (94) and / or below a holding device (92) of the suction device for a cable (94) are arranged.

30. Suction device according to one of the preceding claims, characterized in that the first air outlet (102) and / or the second air outlet (104) are arranged and / or formed on the suction head (20), and in particular characterized in that the first The air outlet (102) and / or the second air outlet (104) are each arranged and / or formed in half on a base element (72) of the suction head (20) and half on a hood element (74) of the suction head (20) arranged on the base element (72) are, wherein the hood element (74) is arranged with respect to a height direction (32) of the suction device above the base element (72).

31. Suction device according to one of the preceding claims, characterized in that the suction material container (12) is detachably connected to the suction head (20).

32. Suction device according to one of the preceding claims, characterized in that a suction connection (34) assigned to the suction fan device (22) is arranged and / or formed on the suction material container (12).

33. Suction device according to one of the preceding claims, characterized by a suction head housing (68) of the suction head (20), on which the first air outlet (102) and / or the second air outlet (104) are arranged and / or formed.

34. Suction device according to one of the preceding claims, characterized in that the channel device (96) is arranged in an interior (70) of the suction head (20), the interior (70) in particular from a suction head housing (68) of the suction head (20) ) is limited.

35. Suction device according to one of the preceding claims, characterized in that the suction device is directed and designed as a wet / dry suction device and / or as a mobile suction device and / or as a stand-alone suction device.