EP3048943A1

EP3048943A1 - Suction nozzle apparatus for a cleaning device, and cleaning device

Info

Publication number: EP3048943A1
Application number: EP13766293.8A
Authority: EP
Inventors: Jochen BURCHARD; Dirk Ricklefsen; Bernd Kiesling; Piero PRETE; Astorre Agostini
Original assignee: Alfred Kaercher SE and Co KG
Current assignee: Alfred Kaercher SE and Co KG
Priority date: 2013-09-23
Filing date: 2013-09-23
Publication date: 2016-08-03
Anticipated expiration: 2033-09-23
Also published as: CN105578941B; CN105578941A; WO2015039706A1; RU2647234C2; US20160198920A1; EP3048943B1; RU2016115793A

Abstract

Proposed is a suction nozzle apparatus for a cleaning device (10), which suction nozzle apparatus comprises a connection (28) for the application of negative pressure, a suction body (46) and a suction head (76) which has at least one suction opening (136) and is rotatably arranged on said suction body (46). The at least one suction opening (136) is in fluid connection with the connection (28), and the suction head (76) is rotatably mounted in an interior space (74) of a housing (48) of the suction body (46).

Description

Suction nozzle device for a cleaning device

The invention relates to a suction nozzle device for a cleaning device, comprising a connection for negative pressure, a suction body, and a suction head with at least one suction opening, which is rotatably arranged on the absorbent body, wherein the at least one suction opening is in fluidly effective connection with the terminal.

From US 3,616,482 a Saugreinigungsgerät is known which comprises a cleaning nozzle.

From EP 1 880 651 B1 is a spray extraction nozzle with a suction channel and a suction mouth and a spray nozzle associated therewith and with an adapter for processing surfaces that are different

Having textures known. The adapter is connected to the spray extraction nozzle via a pivot axis and can be pivoted from a position of rest remote from the suction mouth into a working position in front of the suction mouth of the spray extraction nozzle. The adapter serves in its rest position as a support surface for the spray extraction nozzle.

From EP 0 176 696 A2 a cleaning device for drying or

Wet suction and / or for spray extraction cleaning with a suction nozzle having suction head, which is in communication with a suction line, and with a discharging at the suction head in a spray nozzle spray charge for a cleaning liquid known. The suction head has on its underside and on its front end side each have a suction opening and in each case one of the two suction openings is closable.

From WO 87/01920 AI a variable cleaning nozzle is known. From DE 10 2011 050 697 Al a liquid suction device for removing and absorbing liquids is known.

The invention has for its object to provide a suction nozzle device of the type mentioned above, which has optimized suction properties with structurally simple design.

This object is achieved according to the invention in the suction nozzle device mentioned above in that the suction head is rotatably mounted in an interior of a housing of the absorbent body.

About the absorbent body is a suction. The absorbent contacted directly to the surface to be cleaned or, for example, lips such as rubber lips.

Due to the rotatability of the suction head, an angular position of the suction nozzle device can be adjusted to the cleaning surface. As a result, an adaptation to different sizes of an operator is possible in a simple manner and in particular automatically. In particular, when a spray of the surface to be cleaned with cleaning liquid is provided, a same spray pattern is achieved independently of the angular position of the suction nozzle device to the surface to be cleaned.

Due to the inner bearing of the suction head to the housing this is protected. A corresponding pivot bearing can be formed in a structurally simple manner.

Furthermore, the suction head can be positioned on the absorbent body so that its axis of rotation has a minimum distance from the surface to be cleaned. This minimum distance is substantially half the diameter of the suction head.

With a corresponding structurally simple design of a rotary bearing, the suction head can also be easily and in particular tool remove freely from the absorbent body, for example, for cleaning purposes and reinsert.

By the storage of the suction head in the interior of the housing of the absorbent body, a fluid path for the suction can be realized, which has independent of the rotational position of the suction head on the absorbent body minimized cross-sectional jumps. This results in an optimized suction result with minimized flow losses. In particular, the housing of the absorbent body has a first wall and an opposite second wall, between which the suction head is positioned. The walls can be used in particular for the formation of a pivot bearing. This results in a compact design with a protected storage of the suction head.

It is advantageous if in each case receptacles for the rotary mounting of the suction head are arranged on the first wall and the second wall. As a result, a corresponding pivot bearing can be designed in a structurally simple and production-technically simple manner.

In particular, a respective receptacle is formed as a recess on the corresponding wall. It can thereby form a part of the pivot bearing in a sense as a hole. It is advantageous if at least one receptacle is formed as a continuous recess. As a result, an operator can release the suction head from the absorbent body from the outside by appropriate application of pressure.

It is structurally favorable if the stub shaft opposite the suction head are arranged on the absorbent body for pivotal mounting. The stub shafts are arranged in particular rotationally fixed to the absorbent body. With appropriate immersion in an associated recording, a rotatability or pivoting of the suction head on the absorbent body can be realized in a simple manner. It is advantageous if at least one stub shaft is displaceable parallel to a rotation axis of the suction head. As a result, a suction head detachable from the absorbent body can be realized in a simple manner, the solubility (and also the usability) being possible in particular without tools.

It is advantageous if the at least one displaceable stub shaft is spring-loaded, with a spring force having to be overcome in order to displace the corresponding stub shaft in the direction of the other stub shaft. The spring force presses the displaceable stub shaft in a position which allows a rotary mounting of the suction head on the absorbent body. By displacement of the corresponding stub shaft against the direction of the spring force, for which an operator access is necessary, a corresponding stub shaft can be dipped out of its receptacle and thereby the suction head can be removed from the absorbent body.

In particular, then the suction head is removable and tool-free removable positioned on the absorbent body. This allows an operator to easily replace the suction head, for example, for cleaning. It is thereby also possible to adapt the suction nozzle device in a simple manner to different applications and in particular to different types of surfaces to be cleaned. For example, a special suction head for hard floors can be provided which, for example, has rollers for guiding the rollers on the hard floor and has release lips. Furthermore, a corresponding suction head can be provided for cleaning textile materials such as carpets. This results in a variable applicability of the corresponding suction nozzle device. It is advantageous if the suction head is designed as a shaft and is designed in particular as a whole as a shaft. This shaft, which in particular has stub shafts, is rotatably positioned as a whole in the housing interior of the absorbent body. It is advantageous if a sliding bearing for the suction head is arranged on the absorbent body, wherein in particular a sliding seal between the absorbent body and the suction head is formed. Through the sliding bearing you get an additional Liehe support for the rotation of the suction head in the absorbent body.

At the same time, this makes it possible to form a sliding seal so that the flow path for entry into the absorbent body is essentially predetermined only by the suction head and thereby by the suction opening.

In particular, in the region of the slide bearing, the absorbent body and the suction head have cylinder contours matched to one another. As a result, a rotation of the suction head in the sliding bearing is made possible in a simple manner. It is particularly advantageous if at least one guide skid is arranged on the suction body for support on a surface to be cleaned.

As a result, an enlarged guide surface is provided. By the corresponding enlarged guide surface and thus also by an enlarged support surface can be easily adjusted by adjusting an angular position of the suction nozzle device to the surface to be cleaned to an operator size. The suction nozzle device can thereby be used variably in a simple manner.

In particular, a guide run is arranged in each case in the region of opposite end faces of the suction head. The guide runners are spaced from each other. This results in an enlarged guide surface, with guide runners being positionable, for example, such that they are at most minimally charged with spray liquid, that is, they do not shade the spray of a surface to be cleaned to a relevant extent.

In particular, the at least one guide runner is oriented transversely to a rotational axis of the suction head in order to achieve effective support and thus guidance. It is advantageous if the at least one guide skid is oriented in a direction which is parallel to a pulling direction of the suction nozzle device during operation of the cleaning device. As a result, the at least one guide blade does not project beyond a front side of the absorbent body and the absorbent body can be brought close to a transverse wall to the surface to be cleaned.

In one embodiment, one or more rollers are arranged on the at least one guide runner. It can be realized in particular a suction head, which is advantageous for the cleaning of hard floors. For example, for the cleaning of textile materials such roles are not provided in the rule. It is also advantageous if a support surface of the at least one guide run for the surface to be cleaned is oriented parallel to a rotation axis of the suction head. This results in an optimized leadership.

It is advantageous if the suction head has at least one suction channel which extends between at least one outlet opening and the at least one suction opening. The suction head comprises a body, on which the at least one suction opening and the at least one outlet opening are arranged, wherein these extend between the at least one suction channel in the body. Suction material is then sucked through the suction head, that is, a flow path for the suction leads through the suction head. It can thereby be realized in a simple manner that the suction head touches directly or via sealing lips the surface to be cleaned and suction material is then sucked into a suction chamber below the suction head. This in turn can be avoided at any rotational position of the suction head large cross-sectional jumps and there is an optimized flow path. It is advantageous if the absorbent body has a suction chamber, which is in fluid-effective connection with the connection, wherein the at least one suction channel opens into the suction chamber at each rotational position of the suction head. This results in an optimized connection of the suction head to the absorbent body with respect to the flow guidance. It is possible to avoid large cross-sectional jumps in the flow path, resulting in an optimized extraction result.

In one embodiment, the absorbent body comprises a tubular element in which the suction chamber is formed, and the suction head comprises at least one immersion element, which is immersed in the tubular element, wherein in the at least one immersion element, the at least one outlet opening is arranged. This results in an optimized transition with respect to the

Flow guidance from the suction head to the absorbent body. Between the at least one immersion element and the tubular element, a seal can be achieved in a simple manner, in particular via a sliding seal, so that the flow path is essentially defined via the at least one suction channel in the suction head and the suction space. It is advantageous if the at least one immersion element bears against a wall of the tubular element in order to form a sliding seal. This results in each rotational position of the suction head a sealing effect.

It can be provided that the at least one immersion element for rotation on the tubular element has a rounded end head. It can thereby simultaneously realize a rotation and realize a sliding seal.

In one embodiment, a first stop and a second stop for the suction head are provided on the absorbent body, wherein the suction head between the first stop and the second stop is pivotable relative to the absorbent body. As a result, an angle position of the suction nozzle device adapted to an operator can be easily achieved Adjust cleaning surface. The first stop and the second stop are formed in particular by appropriate design measures on the suction head and the absorbent body. For example, a stop is formed by one or more guide runners striking a specific area of the absorbent body. Another stop is formed, for example, in that a stop element of the suction head strikes like a stop bar on a corresponding housing part of the absorbent body.

In particular, the rotatability between the first stop and the second stop is stepless. Such stepless rotation can be realized in a simple manner via a corresponding pivot bearing. In particular, the suction head is formed as a whole as a shaft. This results in a simple adaptation to different user sizes and also for certain cleaning purposes, the angular position of the Saugdüsen- device can be set variably to the surface to be cleaned.

In one embodiment, at least one spray nozzle is provided for spraying a surface to be cleaned. As a result, a surface to be cleaned can first be sprayed with cleaning liquid, and then excess liquid can be absorbed. The cleaning liquid can dissolve and absorb dirt. For example, the corresponding suction nozzle device is then a spray extraction suction nozzle device. It may, for example, also be provided that steam is sprayed onto the surface to be cleaned via the at least one spray nozzle.

It is advantageous if the suction nozzle device has a spray connection which is in fluid-effective connection with the at least one spray nozzle. Via the spray connection, spray liquid can be coupled into the suction nozzle device.

In one embodiment, the at least one spray nozzle is positioned spaced from the suction head. It is then in particular a Spray extraction suction nozzle device. The surface to be cleaned is sprayed with spray liquid via the at least one spray nozzle before suction takes place. In the solution according to the invention, the axis of rotation is in a fixed position to the at least one spray nozzle. This means that at each angular position of the suction nozzle device the same spray pattern is obtained on the surface to be cleaned.

In one embodiment, a holder is provided on which the at least one spray nozzle and the absorbent body are fixed. This results in a compact construction of the suction nozzle device. Further, a fixed distance relation is set between the at least one spray nozzle and the suction head.

In front of the holder is a front room and behind the holder is a rear space, the holder covers to a certain extent the front room and the back room. It is advantageous if the at least one spray nozzle in the

Rear room is positioned and pulled in normal operation of the cleaning device, the suction head in a pulling direction, which faces from the front room to the back room. It can thereby first spray a certain area of the surface to be cleaned and then is brought by pulling the suction nozzle in the drawing direction of the suction head in contact with the previously sprayed area and it can be excess liquid suck in particular with dissolved dirt. According to the invention, a cleaning device is provided with a blower device for generating negative pressure (for generating a suction air flow) with a suction connection, which comprises a suction nozzle device according to the invention whose connection is connected to the suction connection. The cleaning device according to the invention has the advantages already explained in connection with the suction nozzle device according to the invention. The cleaning device can be designed, for example, as a spray extraction device or steam suction device with a provision connection for spray fluid, which is connected to a spray connection of the suction nozzle device. The suction nozzle device can then also be used to form cleaning fluid and, in particular, spray fluid.

It is advantageous if a set of different suction heads is provided for different cleaning applications. In the solution according to the invention, the suction head can be removed in a simple manner and in particular in a tool-free manner from the absorbent body and inserted into it. It is thus possible in a simple manner via a variable choice of a suction head adaptation to a surface to be cleaned.

In particular, the kit comprises at least one suction head for spray extraction cleaning of textile materials and a suction head for cleaning hard floors. For example, in a suction head for spray extraction cleaning of textile materials, a sliding surface is provided on the suction head and, in particular, no sealing lips, such as rubber lips, are provided. In a suction head for cleaning hard floors rollers may be provided and sealing lips, between which lies at least one suction opening.

The following description of preferred embodiments is used in conjunction with the drawings for further explanation of the invention. Show it :

Figure 1 is a perspective view of an embodiment of a

Cleaning equipment; Figure 2 shows an embodiment of a suction nozzle device, which is connectable to the cleaning device according to Figure 1;

FIG. 3 shows another view of the suction nozzle device according to FIG. 2; Figure 4 is a sectional view taken along line 4-4 of Figure 3;

Figure 5 is a sectional view taken along the line 5-5 of Figure 4; and

FIG. 6 shows a sectional view along the line 6-6 according to FIG. 4.

An exemplary embodiment of a cleaning device, which is shown in FIG. 1 and designated therein by 10, comprises a housing 12. Components of the cleaning device 10 are arranged in a protected manner in the housing 12. One component of the cleaning device 10 is a blower device 14, which generates a suction flow.

On the housing 12, a suction port 16 is arranged, to which a suction nozzle device 18 (Figures 2 to 6) can be connected.

The blower device 14 is in fluid-effective connection with the suction connection 16. The blower device 14 is assigned a separator, which is arranged on the housing 12 (not visible in FIG. 1). Furthermore, in the

Housing 12, a tank for receiving dirty liquid, which is sucked arranged. In one embodiment, the cleaning device 10 is designed as a spray extraction device. A device 19 is provided which provides and in particular promotes spray liquid. This is in fluid communication with a delivery port 20 for spray fluid. In one embodiment, the cleaning device is designed as a Dampfsauggerät. The device 19 is then in particular a steam generating device with a conveyor for steam to the supply terminal 20th The cleaning device 10 is in one embodiment movable with a wheel device 22, via which the cleaning device 10 can be set up on a base.

The suction nozzle device 18 comprises a handle 24. On the handle 24, a flexible hose 26 is held. The hose 26 has a connection 28 for negative pressure. This connection 28 of the suction nozzle device 18 can be connected to the suction connection 16.

On the handle 24, a switching device 30 is arranged, via which a suction and / or spraying operation is switchable.

On the handle 24 sits on one side, which faces away from the side on which the hose 26 is positioned, a pipe section 32. This pipe section 32 comprises a rigid tube. On the pipe section 32 sits a bow handle 34, via which an operator can hold the suction nozzle device 18.

The pipe section 32 is fixed in particular by means of a union nut 36 at a thread of the handle 24.

On the pipe section 32 sits another pipe section 38, which is fixed via a union nut 40 at a thread of the pipe section 32. In turn, a suction nozzle 42 is seated on the pipe section 38.

In one embodiment, the suction nozzle 42 is fixed by means of a union nut 44 at a thread of the pipe section 38. The suction nozzle 42 comprises a suction body 46 with a housing 48. On the housing 48 sits a pipe section 50, which is connected to the union nut 44 with the pipe section 38. About the absorbent body 46 can absorb fluid. There is a Fluidtransport- path through the absorbent body 46, the pipe section 50, the pipe section 38, the pipe section 32 and the handle 24 through the hose 26 to the port 28 is provided so that fluid (dirt-containing fluid, which may also contain liquid) the cleaning device 10 via the suction port 16 is sucked.

The tube piece 38 forms a holder 52 for the suction nozzle 42 on the absorbent body 46. This holder 52 also holds a spray nozzle 54 (Figures 2 and 4). The suction nozzle device 18 has a spray connection 56 (FIG. 2), which can be connected to the supply connection 20. From this spray port 56, a spray liquid line 58 extends along the handle 24, the pipe section 32, the pipe section 38, and partially along the pipe section 50 to the spray nozzle 54.

The spray nozzle 50 itself is spaced from the tube piece 50 on a lower side 60 of the holder 52 and spaced from the absorbent body 46.

In a normal operating position, the pipe section 50 is inclined at an acute angle 62 to a surface 64 to be cleaned. The bottom 60 then faces the surface 64 to be cleaned.

The spray nozzle 54 is aligned so that a region 66 of the surface 64 to be cleaned, which lies in front of the absorbent body 46, is sprayed.

By the holder 52, the space in which the holder 52 is positioned is divided into a front room 68 and a rear room 70. The spray nozzle 54 is positioned in the back room 70. In a normal operation of the suction nozzle device 18 on the cleaning device 10, this is pulled in a pulling direction 72, which points from the front room 68 in the back room 70. The housing 48 of the absorbent body 46 has a housing interior 74. In this housing interior 74, a suction head 76 is arranged rotatably about a rotation axis 78. When the suction head 76 abuts the surface 64 to be cleaned, the axis of rotation 78 is parallel to the surface 64 to be cleaned.

Housing 48 has a first wall 80 and a second wall 82 oppositely spaced (Figures 5 and 6). Between the first wall 80 and the second wall 82, the suction head 76 is positioned.

The first wall 80 has a receptacle 84. The receptacle 84 is formed by a recess, which is in particular hollow-cylindrical. The second wall 82 has a corresponding receptacle 86, which is also formed as a recess on the second wall 82 and in particular as a hollow-cylindrical recess.

The suction head 76 comprises a body 88. This body 88 is at least approximately cylindrical.

The body 88 has the first wall 80 facing a first end face 90 and the second wall 82 facing a second end face 92. At the first end face 90 sits a first stub shaft 94, which is cylindrically formed and is positioned in the receptacle 84. Accordingly, sits on the second end face 92, a second stub shaft 96, which is also cylindrical and is positioned in the receptacle 86.

By the first stub shaft 94 with associated receptacle 84 and the second stub shaft 96 with associated receptacle 86, a pivot bearing 98 is formed, via which the suction head 76 is rotatably mounted in the housing interior 74. The suction head 76 forms, with its stub shafts 94 and 96, a shaft rotatably mounted on the housing 48 and in the housing interior 74 between the first wall 80 and the second wall 82. At least one stub shaft is slidable. In the embodiment shown, the second stub shaft 96 is designed to be displaceable in a direction 100 which is parallel to the axis of rotation 78.

The second stub shaft 96 is spring-loaded; A spring device 102 is provided, which is arranged in a recess 104 in the region of the second end face 92 of the suction head 76. In the recess 104, the second stub shaft 96 is displaceable in the direction 100, wherein the spring device 102 is supported on a rear side 106 of the second stub shaft 96 and a bottom 108 of the recess 104. The spring device 102 pushes the second stub shaft 96 away from the floor 108.

On the second stub shaft 96, a contact element 110 is arranged, which is for example disc-shaped. A ceiling 112 for the recess 104 forms a contact surface for the abutment element 110, which limits the displacement of the second stub shaft 96 away from the floor 108. The abutment member 110 and the blanket 112 are dimensioned such that when the abutment member 110 abuts against the blanket 112, the second stub shaft 96 is positioned in the receptacle 86 such that the suction head 76 is rotatably mounted within the housing interior 74 on the first wall 80 and the second wall 82 is held.

In order to guide the second stub shaft 96 out of the receptacle 86, the second stub shaft 96 must be displaced in the direction of the first stub shaft 94 against the spring force of the spring device 102.

As a result, the second stub shaft 96 can dive out of the receptacle 86. It is then possible to remove the suction head 76 as a whole from the housing 48. The receptacle 86 (and advantageously also the receptacle 84) is formed as a continuous recess. An operator may then externally push the second shaft stub 96 out of the receptacle 86 to allow removal of the suction head 76.

On the suction head 76, a guide runner device 114 is arranged, through which an enlarged bearing surface for the support of the suction head 76 is effected on the surface 64 to be cleaned.

In one exemplary embodiment, the guide runner device 114 comprises a first guide runner 116, which is arranged in the region of the first end face 90. There is further provided a spaced second guide skid 118, which is arranged in the region of the second end face 92. There is a free space between the first guide skid 116 and the second skid 118.

The first guide runner 116 and the second guide runner 118 are aligned parallel to each other. They each extend in a direction transverse to the axis of rotation 78.

The first guide runner 116 and the second guide runner 118 face the underside of the holder 52 and extend into the rear space 70. This prevents abutment of the guide runners 116, 118 on a transverse surface to the surface 64 to be cleaned when the absorbent body 56 is in the opposite direction to the direction 72 is moved to this transverse surface.

An underside 120 of the guide runner device 114 is particularly flat or forms a flat envelope surface.

In one embodiment, rollers 122 are disposed on the guide cam means 114 (indicated in FIG. 4). A corresponding suction nozzle device with such rollers 122 is particularly suitable for cleaning hard floors.

In a suction nozzle device which is used for cleaning textile materials and in particular for cleaning carpets, the guide runner device 114 is designed as a sliding guide without rollers 122.

In the housing interior 74 of the housing 48, a sliding bearing 124 is arranged for the suction head 76. This sliding bearing 124 comprises a sliding surface 126 with a (hollow) cylinder contour, which is adapted to a corresponding cylindrical contour of the suction head 76. The suction head 76 bears against the sliding surface 126. By sliding bearing 124 with an outer contour of the suction head 76 on the sliding surface 126 a sliding seal is formed. The sliding surface 126 surrounds a tubular element 128, which is arranged in the housing interior 74. The tube member 128 has a suction space 130 which is in fluid communication with the port 28. The suction chamber 130 is connected via a pipe 132 with the pipe section 50. The tube 132 is arranged at a transition region 134 from the absorbent body 46 of the suction nozzle 42 to the pipe section 50.

At the suction head 76 (at least) an intake opening 136 is arranged. The suction opening 136 is an opening of one (or more) suction channels 138, which pass through the body 88 and open on a side remote from the suction opening 136 in (at least) one outlet opening 140. The outlet opening 140 is positioned in the suction space 130 independently of the rotational position of the suction head 76.

During operation of the suction nozzle device 18, the suction opening 136 directly faces the surface 64 to be cleaned.

On the body 88 of the suction head 76, a submerged element 142 is formed, which is immersed in the suction chamber 130. On the immersion element 142 the outlet opening 140 is located. The immersion element 142 is rotatable in the suction space 130, with the immersion element 142 resting against the tube element 128; As a result, a sliding seal is formed between the immersion element 142 and the tube element 128.

For a rotatability (pivotability) of the immersion element 142 in the tubular element 128, the immersion element 142 has an end head 144, which is rounded. In one embodiment, the suction port 136 is formed as a slot, which extends in particular over approximately the entire length of the suction head 76 between the first stub shaft 94 and the second stub shaft 96. As a result, a large mouth area is provided for sucking.

The suction channel 138 at the suction opening 136 has, in one embodiment, a shorter length than the suction opening 136. In particular, a length of the outlet opening 140 corresponds at least approximately to a corresponding length of the suction space 130.

The position of the axis of rotation 78 relative to the suction nozzle 42 is independent of the pivotal position of the suction head 76. This results regardless of the rotational position (pivot position) of the suction head 76, the same spray pattern. The suction nozzle device 18 functions as follows:

The suction nozzle device 18 is connected during operation of the cleaning device 10 to this. The negative pressure port 28 is connected to the suction port 16, and the spray port 56 is connected to the supply port 20. The blower device 14 generates a negative pressure air flow (suction air flow), which is present at the suction opening 136. Via the supply connection 20, spray liquid 54 is provided to the spray nozzle. During cleaning operation, the suction head 76 rests on the surface 64 to be cleaned. In addition, the guide cam device 114 rests on the surface 64 to be cleaned.

By the rotatable suction head 76, the acute angle 62 is adaptable to the size of an operator, so that regardless of the size of the operator results in a comfortable working position.

The suction head 76 adapts automatically, so that the suction opening 136 is positioned for the corresponding suction.

It results regardless of the angle 62 on the surface 64 to be cleaned in the vicinity of the suction head 76, the same spray pattern; the rotation axis 78 is in a fixed position to the spray nozzle 54. The absorbent body 46 defines a first stop 146 (Figure 4) and a second stop 148 for the rotatability of the suction head 76. Between the first stop 146 and the second stop 148 is the suction head 76 infinitely rotatable and thus the angle 62 adjustable. The suction head 76 strikes against the first stop 146, in particular via the guide cam device 114.

For abutment against the second stop 148, which is formed in particular on an end face of the sliding bearing 124, a stop bar 150 is formed on the body 88. The free rotation of the suction head 76 between the first stop 146 and the second stop 148, an operator can also adjust the angular position of the suction nozzle 18 to clean certain areas. The guide runner device 114 points into the rear space 70. As a result, the absorbent body 46 can be formed on a front side 68 pointing in the front space 68 at least approximately flat or with a flat envelope surface. Thereby, the absorbent body 46 can be pushed close to a transverse wall to the surface 64 to be cleaned, in particular, the guide runner 114 does not hinder this push or concern.

For example, if a spray extraction cleaning of a textile material such as a carpet is performed, then the suction head 76 is moved in the direction 72, that is, it is pulled in that direction 72. A surface area to be cleaned is then sprayed first with spray liquid and then the suction head 76 moves with the suction opening 136 over the sprayed area and sucks in excess liquid (with dissolved dirt).

The suction head 76 is positioned between the first wall 80 and the second wall 82 in the housing interior 74. He is thus protected and a corresponding pivot bearing 98 can be easily on the stub axles 94, 96 form.

Irrespective of the rotational position of the suction head 76, the (at least one) outlet opening 140 discharges into the suction space 130 in the same way. Cross-section jumps with a negative flow influence can thereby be prevented and an optimized suction result is obtained. The suction head 76 can be removed by the formation of the pivot bearing 98 with at least one spring-loaded stub shaft 96 in a simple manner from the absorbent body 46 for cleaning. It is thus also possible to adapt the suction nozzle device 18 in a simple manner by conversion of the suction head 76 to the surface 64 to be cleaned.

In one embodiment, a set of different suction cups 76 are provided to obtain an optimized cleaning result for different types of surfaces 64 to be cleaned.

In particular, the set of suction cups 76 includes a suction head for cleaning hard floors. Such a suction head has in particular rollers 122 on the guide runner device 114. Furthermore, lips may be provided of an elastic material, such as rubber lips, which extend in the longitudinal direction of the suction opening 136, wherein the suction opening 136 is located between such lips. There is also provided a suction head 76 for the cleaning of textile materials such as carpets. In this embodiment, the guide runner 114 is formed as a pure sliding guide, which can slide over the textile material. The suction head 76 is further formed for sliding on the surface 64 to be cleaned of textile material without rubber lips or the like are provided.

The suction nozzle 42 of the suction nozzle device 18 is compact in the inventive solution. The suction head 76 is located in the housing interior 74. It is thus protected from damage and less sensitive to contamination.

The suction head 76 can be easily removed and replaced. As a result, on the one hand a slight cleaning of the suction head 76th possible and on the other hand, the suction nozzle device 18 and thus the cleaning device 10 can be easily adapted to the type of surface 64 to be cleaned, such as hard floor or textile material.

By positioning the suction head 76 in the housing interior 74, that is by an inner rotary bearing of the suction head 76 can be large cross-sectional jumps in the fluid path starting from the suction 136 at each rotational position of the suction head 76 avoid and this results in an effective suction.

Cleaning device

casing

blower

suction

Saugdüsenvorrichtung

Facility

Supply port

wheel means

grip

tube

Connection for negative pressure switching device

pipe section

bow handle

Nut

pipe section

Nut

suction nozzle

Nut

suction body

casing

pipe section

holder

spray nozzle

Sprühanschluss

management

bottom

acute angle

Area to be cleaned

Area

front room back room

drawing direction

Housing interior

suction head

axis of rotation

First wall

Second wall

admission

body

First front page

Second front side

First stub shaft

Second stub shaft

pivot bearing

direction

spring means

recess

back

ground

contact element

blanket

Guide runners facility

First lead

Second lead

bottom

role

bearings

sliding surface

tube element

suction

pipe

Transition area 136 suction opening

138 suction channel

140 outlet opening

142 immersion element

144 forehead

146 First stop

148 Second stop

150 stop bar

152 front side

Claims

claims

A suction nozzle device for a cleaning device (10), comprising a connection (28) for negative pressure, a suction body (46), and a suction head (76) with at least one suction opening (136), which is rotatably arranged on the absorbent body (46), wherein the at least one suction opening (136) is in fluid-effective connection with the connection (28), characterized in that the suction head (76) is rotatably mounted in an interior (74) of a housing (48) of the absorbent body (46).

2. Suction nozzle device according to claim 1, characterized in that the housing (48) of the absorbent body (46) has a first wall (80) and an opposite second wall (82), between which the suction head (76) is positioned.

3. Suction nozzle device according to claim 2, characterized in that on the first wall (80) and the second wall (82) respectively receptacles (84, 86) for pivotal mounting of the suction head (76) are arranged.

4. Suction nozzle device according to claim 3, characterized in that a respective receptacle (84; 86) is formed as a recess in the corresponding wall (80; 82).

5. Suction nozzle device according to one of the preceding claims,

characterized in that on the suction head (76) opposite stub shafts (94; 96) for pivotal mounting on the absorbent body (46) are arranged.

6. Suction nozzle device according to claim 5, characterized in that at least one stub shaft (92) parallel to a rotation axis (78) of the suction head (76) is displaceable.

7. Saugdüsenvorrichtung according to claim 6, characterized in that the at least one displaceable stub shaft (92) is spring-loaded, wherein the displacement of the corresponding stub shaft (92) in the direction of the other stub shaft (94) towards a spring force must be overcome.

8. Suction nozzle device according to one of the preceding claims,

characterized in that the suction head (76) is removable and tool-free removable positioned on the absorbent body (46).

9. Suction nozzle device according to one of the preceding claims,

characterized in that the suction head (76) is designed as a shaft.

10. Suction nozzle device according to one of the preceding claims,

characterized in that on the absorbent body (46) has a sliding bearing (124) for the suction head (76) is arranged, in particular a sliding seal between the absorbent body (46) and the suction head (76) is formed.

11. Suction nozzle device according to claim 10, characterized in that in the region of the sliding bearing (124) of the absorbent body (46) and the suction head (76) have matched cylinder contours.

12. Suction nozzle device according to one of the preceding claims,

characterized in that on the absorbent body (76) at least one guide skid (116; 118) is arranged for resting on a surface (64) to be cleaned.

13. Suction nozzle device according to claim 12, characterized in that in the region of opposite end faces (90, 92) of the suction head (76) in each case a guide runner (116, 118) is arranged.

14. Suction nozzle device according to claim 12 or 13, characterized in that the at least one guide runner (116; 118) is oriented transversely to a rotation axis (78) of the suction head (76).

15. Suction nozzle device according to claim 14, characterized in that the at least one guide runner (116; 118) is oriented in a direction which is parallel to a pulling direction (72) of the suction nozzle device during operation of the cleaning device (10).

16. Suction nozzle device according to one of claims 12 to 15, characterized in that at least one guide runner (116, 118) one or more rollers (122) are arranged.

17. Suction nozzle device according to one of claims 11 to 16, characterized in that a bearing surface of the at least one guide runner (116; 118) is oriented parallel to a rotation axis (78) of the suction head (76).

18. Suction nozzle device according to one of the preceding claims,

characterized in that the suction head (76) has at least one suction channel (138) which extends between at least one outlet opening (140) and the at least one suction opening (136).

19. Suction nozzle device according to claim 18, characterized in that the absorbent body (76) has a suction chamber (130) which is in fluid-effective connection with the connection (28), wherein the at least one suction channel (76) into the suction space (130 ) at each rotational position of the suction head (76) opens.

Suction nozzle device according to claim 19, characterized in that the absorbent body (76) comprises a tubular element (128) in which the suction space (130) is formed, and the suction head (76) comprises at least one immersion element (142), which in the Pipe element (128) is immersed, wherein at least one immersion element (142), the at least one outlet opening (140) is arranged.

21. Suction nozzle device according to claim 20, characterized in that the at least one immersion element (142) rests against a wall of the tubular element (128) to form a sliding seal.

22. Suction nozzle device according to claim 20 or 21, characterized in that the at least one immersion element (142) for rotation on the tubular element (128) has a rounded end head (144).

23. Suction nozzle device according to one of the preceding claims,

characterized by a first stop (146) and a second stop (148) for the suction head (76) on the absorbent body (46), the suction head (76) between the first stop (146) and the second stop (148) relative to Suction body (46) is pivotable.

24. Suction nozzle device according to claim 23, characterized in that the rotatability between the first stop (146) and the second stop (148) is infinitely variable.

25. Suction nozzle device according to one of the preceding claims,

characterized by at least one spray nozzle (54) for spraying a surface (64) to be cleaned.

26. Suction nozzle device according to claim 25, characterized by a spray connection (56) which is in fluid-effective connection with the at least one spray nozzle (54).

27. Suction nozzle device according to claim 25 or 26, characterized in that the at least one spray nozzle (54) is positioned at a distance from the suction head (76).

28. Suction nozzle device according to one of claims 25 to 27, characterized by a holder (52) on which the at least one spray nozzle (54) and the absorbent body (76) are fixed.

29. Suction nozzle device according to claim 28, characterized by a front space (68) in front of the holder (52) and a rear space (70) behind the holder (52), wherein the at least one spray nozzle (54) is positioned in the rear space (70) and in a normal operation of the cleaning device, the suction head (76) is pulled in a pulling direction (72) facing from the front space (68) to the rear space (70).

30. Cleaning device having a blower device (14) for generating negative pressure and having a suction connection (16), comprising a suction nozzle device (10) according to one of the preceding claims, whose connection (28) is connected to the suction connection (16).

31. Cleaning device according to claim 30, characterized by a design as a spray extraction device or steam suction device with a supply connection (20) for spray fluid, which is connected to a spray connection (56) of the suction nozzle device (10).

32. Cleaning device according to claim 30 or 31, characterized by a set of different suction heads (76) for different cleaning applications.

33. Cleaning device according to claim 32, characterized in that the set comprises at least one suction head for spray extraction cleaning of textile materials and a suction head for cleaning hard floors.