WO2016029968A1

WO2016029968A1 - Suction nozzle and hard-surface suction apparatus

Info

Publication number: WO2016029968A1
Application number: PCT/EP2014/068425
Authority: WO
Inventors: Bernd Gruber; Jürgen ZUGER; Heiko Schneider; Tony DIEGEL; Sandra Bartel
Original assignee: Alfred Kärcher Gmbh & Co. Kg
Priority date: 2014-08-29
Filing date: 2014-08-29
Publication date: 2016-03-03
Also published as: CN106604669B; EP3185743B1; EP3185743A1; CN106604669A

Abstract

The aim of the invention is to improve the manipulation of a suction nozzle, in particular for a portable hard-surface suction apparatus comprising a suction device, for cleaning hard surfaces. According to the invention, the suction nozzle has a suction opening connected to a suction channel, wherein the end of the suction channel facing away from the suction opening can be connected to the suction device. In order to achieve said aim, it is proposed that a joint is disposed or formed between the suction opening and the end of the suction channel so as to move the suction opening relative to the end of the suction channel and that a blocking device is provided for the force- and/or form-fitting blocking of the joint in at least one blocking position. The invention further relates to an improved hard-surface suction apparatus.

Description

Suction nozzle and Hartflächenabsauggerät

The present invention relates to a suction nozzle, in particular for a portable Hartflächenabsauggerät comprising a suction device, which suction nozzle has a suction opening, which is followed by a suction channel whose suction port remote from the suction port end is connectable to the suction device.

Furthermore, the present invention relates to a Hartflächenabsauggerät with a suction device and connected to the suction or connectable suction duct connection, which is connected to a Saugkanalende a suction channel of a suction port having a suction nozzle or connectable.

Hard surface cleaning devices are particularly known in the form of Hartflächenab- suction devices of the type described above. These are used, for example, as so-called window vacs. Slices or hard surfaces of all kinds, which are wetted with cleaning fluid in particular, can be easily and quickly cleaned with such devices with no streaks.

A problem with available on the market window suckers, however, it is especially vertical surfaces floor to ceiling with a single continuous vertical movement of the window suction sucked from top to bottom. It has hitherto been necessary, when cleaning floor-deep slices with a portable hard surface suction device known, for example, from WO 2009/086891 A1, to suck the surface to be cleaned near the bottom by horizontal movement of the hard surface suction device parallel to the surface with substantially vertically aligned suction opening.

It is therefore an object of the present invention to improve a suction nozzle and a Hartflächenabsauggerät of the type described above so, - - That in particular a handling of the same in the cleaning of hard surfaces is improved.

This object is achieved in a suction nozzle of the type described above according to the invention that between the suction port and the Saugkanalende a joint is arranged or adapted to move the suction opening relative to the Saugkanalende and that a blocking device is provided for non-positive and / or positive locking of the joint in at least one blocking position.

The inventively proposed training known suction nozzles makes it possible in particular to change an orientation or orientation of the suction opening relative to the Saugkanalende means of the joint. If the suction nozzle is coupled to a hard-surface suction device, which may be designed to be portable in particular, then the suction opening can be changed in its orientation relative to the housing in accordance with the design of the joint due to the joint. For example, the hinge may define a pivot axis so that the suction port and the hard surface aspirator are relatively rotatable or pivotable about the pivot axis. Thus, it is in particular possible to move the suction nozzle with the suction opening in a certain direction, however, the Hartflächenabsauggerät or the housing thereof can be pivoted about the pivot axis, so that it can be pivoted away, in particular in the ground-level area of vertical hard surfaces. This makes it possible in particular to suck a floor-deep window in a train from top to bottom for cleaning streak-free. The further provided blocking device makes it possible in particular, a mobility of the joint quasi off. So it is in particular possible that a user uses a Hartflächenabsauggerät with the inventively proposed suction nozzle as a conventional, for example, from WO 2009/086891 AI known Hartflächenabsauggerät, but if necessary, the blocking device disabled to lift a blockage of the joint, so that this in desired way can be moved. To handle the hard surface In order to further improve the suction device and the suction nozzle, the blocking device can also be designed such that it defines more than one blocking position, for example two, three, four, five or even more blocking positions. Thus, a user of the Hartflächenabsauggeräts adjust an orientation of the suction opening relative to the housing of Hartflächenabsauggeräts so temporarily or permanently, as it is optimal for his individual operation, for example, on the size and range of the user and how strong he is is.

It is advantageous if the suction nozzle comprises a wiper lip and a support lip, which wiper lip and which support lip define the suction opening between them. In particular, the wiper lip and the support lip are flexible and / or elastic. In particular, the wiper lip and the support lip permit optimum sealing of the suction nozzle relative to the hard surface to be suctioned off in order to be able to extract cleaning liquid with a suction power which is as low as possible between the wiper lip and the support lip on the hard surface to be suctioned off. This is particularly advantageous for portable, powered by a battery with electrical energy, off-grid Hartflächenabsauggeräte advantageous, as for example, a deployment time of the devices can be optimized.

It is favorable if the suction nozzle comprises a support lip receptacle for the support lip and / or a wiper lip receptacle for the wiper lip and if the joint is arranged or formed in the region of the support lip receptacle and / or the wiper lip receptacle. In this way, a particularly compact suction nozzle can be formed. The handling of the Hartflächenabsauggeräts changes so practically not for a user. Also, the construction of the device can be substantially the same. The joint is arranged or formed as close as possible to the suction opening, so that no strong deformation of the wiper lip and the support lip is required in order to significantly opposite to a wiper lip edge of the wiper lip and a support lip edge of the support lip, the housing of Hartflächenabsauggeräts - - pivot to avoid obstacles, such as a floor when cleaning floor-to-ceiling windows.

The object stated in the introduction is further achieved according to the invention in a hard surface suction device of the type described above in that a joint is arranged or formed between the suction channel connection and the suction device in order to move the suction channel connection relative to the suction device and that a blocking device is provided for non-positive and / or positive locking Blocking of the joint in at least one blocking position.

As already described above in connection with the proposed development of a suction nozzle, such a further developed Hartflächenabsauggerät allows a change in the orientation between the Saugkanalanschluss and the suction device. The suction device can be arranged, for example, in a housing of the hard surface suction device, so that the suction channel connection can be changed relative to the housing by means of the joint in its orientation. Such trained Hartflächenabsauggerät also makes it possible to couple conventional suction nozzles in unmodified form with the Hartflächenabsauggerät and an orientation of the suction nozzle, which can be coupled immovably in particular with the Saugkanalanschluss, relative to the suction and in particular to the housing of Hartflächenabsauggeräts. Thus, in cleaning situations in which the housing of the Hartflächenabsauggeräts would hinder the suction, the housing are pivoted away relative to the suction, for example, so as to allow for example floor to ceiling windows optimal extraction to the ground at a constant angle to the hard surface aligned suction nozzle. As already described above in connection with the further developed suction nozzle, a blocking position or even a plurality of blocking positions can be defined with the blocking device, in order to limit some or all of the mobility of the joint. - -

The hard surface suction device preferably has a suction nozzle with a suction opening, to which a suction channel adjoins, the suction channel end facing away from the suction opening being connected or connectable to the suction channel connection. In particular, the suction nozzle may be releasably connectable to the hard surface suction device or a housing thereof to be able to use different widths suction nozzles for the suction of hard surfaces can. Even damaged suction nozzles can then be easily replaced.

It is advantageous if the suction nozzle comprises a wiper lip with a wiper lip edge and a support lip with a support lip edge and if the wiper lip and the support lip define the suction opening between them. The wiper lip and the support lip allow optimal sealing of the suction nozzle relative to the hard surface in order to be able to extract cleaning liquid between the wiper lip and the support lip on the hard surface to be suctioned off with the lowest possible suction power. In particular, for portable, network-independent devices, this is advantageous for increasing a deployment time.

Conveniently, the Hartflächenabsauggerät comprises a housing in which the suction device is arranged or formed, wherein the suction nozzle is coupled in a working position with the housing and separated in a disconnected position from the housing. The housing can in particular be designed ergonomically for optimized handling of the Hartflächenabsauggeräts. For example, a handle for holding and guiding the Hartflächenabsauggeräts may be provided on the housing.

For optimal extraction of wetted with cleaning liquid hard surfaces, it is advantageous if the suction opening is formed at least partially rectilinear or curved. For example, the suction opening may be formed curved to a curvature of a hard surface adapted. - -

It is advantageous if the joint defines at least one pivot axis. Thus, the parts of the suction nozzle or of the hard surface suction device which are coupled to one another via the joint can be pivoted relative to one another about the at least one pivot axis. For example, the joint can also define a plurality of pivot axes that are transverse to each other.

Conveniently, the at least one pivot axis extends parallel or transverse to the suction opening. In particular, it can run perpendicular to the suction opening. If the pivot axis runs parallel to the suction opening, it can in particular also run parallel to the wiper lip and / or parallel to the support lip, so that an intuitive operation of the hard surface suction device is made possible for the user. A pivot axis transversely to the suction opening, ie at any angle, in particular 90 °, but not parallel to the suction opening, in particular makes it possible to move the suction nozzle, for example, in the vertical direction from top to bottom on a vertical hard surface along, but the Hartflächenabsauggerät or a housing thereof can be pivoted about the pivot axis, so that the Hartflächenabsauggerät occupies a position substantially, as is the case with the horizontal suction with known from the prior art Hartflächenabsauggeräten. Due to the pivotability of the suction nozzle and the Hartflächenabsauggeräts to a transverse to the suction opening rotation or pivot axis, so a vertical hard surface, such as a floor-deep window, be sucked streak-free in a train from top to bottom for cleaning.

A particularly flexible alignment between the Hartflächenabsauggerät and the suction nozzle can be achieved when the joint is in the form of a ball joint.

Furthermore, it is advantageous if the joint comprises a pivot bearing. The pivot bearing, for example, define a single pivot axis or - - but also several swivel axes. In particular, the pivot bearing may be designed in the form of a ball joint bearing.

It is advantageous if the joint comprises first and second, mutually engaging and cooperating joint elements, which are pivotable in an adjustment position relative to each other about the at least one pivot axis. By the two joint elements can be easily form a joint, depending on the design of the joint elements, for example, as a ball joint or as a pure, a single pivot axis defining swivel joint.

According to a further preferred embodiment of the invention can be provided that the blocking device comprises a locking mechanism having first and second locking elements, which are engaged in at least one locking position, in particular form-fitting, and are disengaged in the adjustment that the first and second locking elements on the one hand are associated with the first joint element and on the other hand the second joint element and that in the at least one locking position, the first and second joint elements are immovably held together. The locking mechanism makes it possible in particular to block the joint in at least one locking position in a defined manner. In particular, two, three, four or more locking positions can be defined by the locking mechanism. This can be achieved in particular via the structural design of the first and second locking elements. In particular, the locking mechanism allows a user to fully re-release the joint on the suction nozzle or hard surface aspirator so as to allow for mobility dictated by the joint, or to temporarily or permanently block the joint, particularly through the engaged first and second locking elements to lock. - -

In a particularly simple manner, the hinge can be locked when the locking mechanism is designed in the form of a Rastverstellmechanismus with first and second locking elements, which form the first and second locking elements. The latching elements can in particular be designed such that they engage in a form-fitting manner and can disengage the latching adjustment mechanism only for an active release, that is to say an active disengagement, in order to move the articulation. Alternatively, the first and second locking elements may also be designed such that they can be disengaged by applying a certain torque about a pivot axis of the joint and, if appropriate, automatically engage again in a further locking position.

Conveniently, the first and second latching elements comprise at least one row of teeth having at least one latching tooth. For example, the number of ratchet teeth of the row of teeth can define the number of possible locking positions. In particular, the first and second latching elements in the form of rows of teeth may be formed with two or more ratchet teeth.

It is advantageous if the locking mechanism comprises at least one biasing element which holds the first and second locking elements in a basic position of the locking mechanism in the locking position. The at least one biasing element may, for example, form part of a biasing device which serves exactly the purpose described. By means of the at least one biasing element is achieved, in particular, that the cooperating hinge elements can not be moved unintentionally relative to each other.

Preferably, the first and second locking elements against the action of the biasing element from the locking position can be converted into the adjustment position. By this configuration, it is particularly difficult or impossible to unintentionally disengage the first and second locking elements. Here, against a force exerted by the biasing element, the one locking element must be relatively - - are moved to the other locking element to disengage them.

A particularly compact construction of the suction nozzle or of the hard surface suction device can be achieved if the prestressing element is arranged or formed on the first or second joint element or on the first or second locking element. In particular, the biasing element may be formed integrally with the first or second hinge element or the first or second locking element. For example, a one-piece design can be achieved in a simple manner by producing the respective parts by means of a plastic injection molding process.

The suction nozzle or the hard surface suction device can be produced particularly easily if the prestressing element is designed in the form of a spring; in particular, the spring can be in the form of a leaf spring or helical spring.

Furthermore, it may be advantageous if the blocking device comprises a clamping mechanism with first and second clamping elements, which cooperate with each other to specify an adjustment force required for adjusting the joint. The clamping mechanism thus makes it possible, in particular, to positively lock the joint or to release it completely. Furthermore, it is also possible with the clamping mechanism to achieve an adjustment of the joint against a clamping force defined by the clamping mechanism. Depending on how strongly the first and second clamping elements cooperate with each other, that is, for example, pressed against each other, so an adjusting force for moving the joint can vary and in principle be adjusted continuously.

In order to enable a simple adjustment of the clamping mechanism, it is advantageous if the first and second clamping elements relative to each other - Are arranged movable or formed. For example, they can be arranged to be displaceable and / or pivotable.

According to another preferred embodiment of the invention, it can be provided that a clamping force acting between the first and second clamping elements can be varied in defined steps or steplessly. Thus, an adjustment of the joint can be achieved in different power levels or specified with virtually any set forces.

It is advantageous if the first and second clamping elements engage and cooperate in at least one clamping position in such a way that the first and second hinge elements are held immovably relative to one another. In this way, the joint of the suction nozzle or the Hartflächenabsauggeräts can block completely.

It is advantageous if the first and second clamping elements cooperate in the adjustment position of the joint such that the first and second hinge elements are movable relative to each other against a clamping force effect of the first and second clamping elements, and / or if the first and second clamping elements in the adjustment except Engage. When the clamping elements are disengaged in the adjustment position, movement of the joint can be achieved only against a prevailing frictional force between the hinge elements. To complicate the adjustment of the joint, the clamping elements can cooperate in the adjustment position, so that the first and second hinge elements can be moved relative to each other only against the acting clamping force.

Advantageously, the clamping mechanism comprises at least one biasing element, which holds the first and second clamping elements in a basic position of the clamping mechanism in the at least one clamping position. The at least one biasing element thus acts in particular such that the first and second clamping elements cooperate with each other and occupy a clamping position. A clamping force is thus - - Defined directly or proportionally to the biasing force exerted by the biasing element.

It is favorable if the first and second clamping elements can be moved against the action of the biasing element from the clamping position into the adjustment position. The clamping mechanism can thus be completely or partially deactivated when the first and second clamping elements are moved against the action of the biasing member relative to each other. Partial deactivation means in particular that a clamping force between the first and second clamping elements is reduced.

It is advantageous if the biasing element is arranged or formed on the first or second joint element or on the first or second clamping element. In particular, the biasing element may be formed integrally with the first or second hinge element or with the first or second clamping element. In particular, a production can be simplified if the biasing element is formed integrally with one of the hinge elements or one of the clamping elements, for example by injection molding of a plastic.

A compact design of the suction nozzle or the Hartflächenab- suction device can be achieved in particular by the biasing element is in the form of a spring. Preferably, the spring is in the form of a leaf spring or a coil spring.

According to a further preferred embodiment of the invention, it can be provided that the suction nozzle or the hard surface suction device comprises an anti-blocking device for deactivating the blocking device in a deactivation position. The anti-lock device makes it possible in particular to completely deactivate the blocking device. It is then present, but does not perform any function. Thus, the blocking device can be permanently deactivated with the antilock device. This - - may be advantageous if a permanent mobility of the joint is desired.

Furthermore, it may be advantageous if the anti-lock device can be brought from the deactivation position into an activation position for activating the blocking device. In particular, this means that the anti-lock device can quasi turn on the blocking device when it is brought into an activation position. A user can then select, in particular superordinate, whether the blocking device is to be used or not to be used.

Preferably, the anti-lock device comprises at least one anti-lock element for deactivating the blocking device in the deactivation position. With the at least one anti-lock element, the blocking device can in particular be deactivated in a simple manner by the anti-lock device is transferred to the deactivation position.

Conveniently, the at least one anti-lock element from the deactivation position in the activation position can be brought to activate the blocking device. In this way, the blocking device can be quasi re-activated with the at least one anti-lock element.

The suction nozzle or the hard surface suction device can be handled in a particularly manner if the at least one anti-blocking element is arranged or designed to be movable on the suction nozzle or on the hard surface suction device. In particular, the at least one anti-lock element can be arranged and / or designed to be displaceable and / or pivotable. For activating or deactivating the blocking device, it is therefore only necessary in particular to move the at least one antilocking element, for example to move it and / or to pivot it.

According to a further preferred embodiment of the invention can be provided that the at least one anti-lock element with one of - -

Locking elements and / or with one of the clamping elements and / or with one of the biasing elements cooperatively arranged or formed to hold the first and second locking elements and / or the first and second clamping elements in the anti-lock position out of engagement. This embodiment allows a particularly compact design of the suction nozzle or Hartfiächenabsauggeräts. In particular, it is thus possible to bring the at least one Antibiockiereiement directly into contact with the elements covered by the blocking device. For example, the Antibiockiereiement can be held against the action of a biasing element in the blocking position and / or in the activation position. In particular, the biasing element of the locking mechanism or the biasing element of the clamping mechanism can be used as a biasing element.

For the handling of the suction nozzle or Hartfiächenabsauggeräts it is advantageous if the blocking device comprises at least one actuating element for transferring the blocking device of the at least one blocking position in the adjustment position in which the joint is movable. By operating the at least one actuating element, for example by pressing it, an operator can thus move the blocking device from the at least one blocking position into the adjustment position or a release position, move the joint and then no longer actuate or release the at least one actuating element in order to restore the blocking device in a blocking position to convict. With appropriately arranged biasing elements this can be done automatically.

It is advantageous if the at least one actuating element with one of the locking elements and / or with one of the clamping elements and / or with one of the biasing elements cooperatively arranged or formed to the first and second locking elements and / or the first and second clamping elements due to a Disengage operation. By an actuation of the at least one actuating element Thus, it is possible to act directly on the locking elements, the clamping elements or the biasing elements of the suction nozzle or of the hard surface suction device, in order to lift a blockage of the joint and to be able to move it.

Furthermore, it is advantageous if the Hartflächenabsauggerät is designed in the form of a window suction. In particular, the Hartflächenabsauggerät be portable and / or network-independent. Hard surfaces, for example, can be easily and effectively cleaned without the hassle of cables.

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

FIG. 1 is a perspective view of a hard surface suction device;

FIG. 2 is a perspective view of a first embodiment of a suction nozzle;

FIG. 3 shows an exploded view of the suction nozzle shown in FIG. 2;

FIG. 4 shows a partially exploded view of the arrangement from FIG. 3 in FIG

Essentially in the opposite direction;

Figure 5 is a sectional view taken along line 5-5 in Figure 4;

Figure 6 is a view similar to Figure 5, in which the suction nozzle is a second

Blocking position occupies;

FIG. 7 shows a view similar to FIG. 6 with the blocking device permanently deactivated by means of an anti-blocking device, which assumes a deactivation position; - -

FIG. 8 shows a partially cutaway perspective view of an anti-knocking element and a part of the housing of the suction nozzle; and

Figure 9: a partially sectioned side view of the suction nozzle with the

Anti-blocking element in the activation position.

FIG. 1 schematically shows a portable hard surface cleaning device 10, specifically in the form of a hard surface suction device 12 designed as a portable handset that can be operated independently of the mains, with which liquid can be extracted from a hard surface, for example water from a window pane. The Hartflächenabsauggerät 12 can be held by a user with one hand on a handle 14 thereof and guided in the manner of a conventional, having a rubber lip puller on the hard surface along.

The Hartflächenabsauggerät 10 includes a housing 16 which also forms the handle 14 and a suction device 18 with a suction turbine 20 and an electric motor 22 for driving the same receives.

In the housing 16 is also at least one rechargeable battery, in particular a lithium-ion battery, arranged to supply power to the electric motor 22nd

The housing 16 further defines a standing surface 26, which allows the Hartflächenabsauggerät 12 in an upright position, as shown schematically in Figure 1, on a footprint, such as a table surface, to be able to set.

On the housing 16, a recess is formed, in which a removable dirty liquid tank 28 is arranged. It serves to accommodate

Dirty liquid that has been transported with the suction device 18. - -

On the upper side, that is to say facing away from the standing surface 26, the housing 16 of the hard-surface suction device 12 can be detachably connected to a suction nozzle 30. In particular, for cleaning purposes, the suction nozzle 30 can be removed from the housing 16.

The structure of the suction nozzle 30 and the Hartflächenabsauggeräts will be explained in more detail in conjunction with Figures 2 to 9.

The suction nozzle 30 comprises a suction nozzle housing, designated overall by the reference numeral 32, which is formed in several parts. In a Saugdü- sengehäuseunterteil 34, a suction channel 36 is arranged or formed, the rear end, also referred to as Saugkanalende 38, with the housing 16 or a hinge unit 48 can be coupled. In this way, the suction channel end 38 of the suction channel 36 is coupled to the suction device 18.

The suction channel 36 defines, with its end remote from the suction channel end 38, a suction opening 40 which extends rectilinearly, optionally also curved, and which is formed between a wiper lip 42 and a support lip 44 cooperating therewith. The wiper lip 42 and the support lip 44 are formed of a flexible material.

The Hartflächenabsauggerät 12 further includes a hinge 46. It is formed on the hinge unit 48 and includes a first hinge member 50 with a receptacle 52 for the Saugkanalende 38 of the suction nozzle 30 and a second hinge member 54 with a coupling device 56 for coupling the second hinge member 54 with a in the figures, not shown suction channel connection, which is arranged or formed on the housing 16 of the Hartflächenabsauggeräts 12.

The first and second hinge members 50 and 54 together form the hinge 46. It is designed in the form of a pivot joint 58 which defines a single pivot axis 60 which is parallel to one of the stripping axes. - - Lip 42 defined Abstreiflippenkante 62 and thus also parallel to the suction port 40 extends.

The pivot joint 58 comprises a pivot bearing 64 with two first bearing elements 66 on the first joint element 50 and two second bearing elements 68 on the second joint element 54. The first bearing elements 60 are in the form of short cylindrical sleeve sections 70 facing away from each other in a direction towards the second hinge member 54 facing, elastic support member 72 are formed.

The second joint element 54 comprises two joint element parts 74 and 76 which can be brought into engagement with one another in a form-fitting manner. These each comprise one of the two second bearing elements 68. The second bearing elements 68 are in the form of mutually facing sleeve sections 78 whose inside diameter substantially corresponds to an outside diameter of the sleeve sections 70 so that the sleeve portions 70 can be inserted into receptacles 80 formed by the sleeve portions 78. The longitudinal axes of the sleeve sections 70 and 78 thus define the pivot axis 60.

The first and second hinge members 50 and 54 are each made of plastic injection molded parts.

The suction channel 36 extends through the hinge unit 48 therethrough. A channel end 82 of the second joint element 54 pointing in the direction of the housing 16 is then coupled to the suction device 18 via the suction channel connection.

The receptacle 52, which in cross-section is substantially elongated oval and parallel to the pivot axis 60, has an annular groove 86 running around on the outside of a sleeve-shaped channel section 84 on its end pointing in the direction of the second joint element 54. The annular groove 86 serves to couple the channel section 84 to a flexible and / or elastic tube section 88 of the suction channel 36. The tube section 88 points Its end pointing in the direction of the first joint element 50 has an annular bead 92 pointing in the direction of a longitudinal axis 90 thereof. The tube section 88 is dimensioned such that the annular bead 92 can be connected in a clamping manner to the channel section 84.

On the second joint member 54 is a self-contained, in the direction of the first joint member 50 toward pointing projection 94 is formed, which carries a circumferential, away from the longitudinal axis 90 nose 96.

At the hose section 88, a circumferential nose receptacle 98 corresponding to the nose 96 is formed on an end facing away from the annular bead 92. The tube portion 88 and the projection 94 are sized so that the tube portion 88 can be slipped over the projection 94 so that the circumferential nose 96 engages the nose receptacle 98. As can be clearly seen in particular in the views of FIGS. 5 to 7, a continuous flow channel 100 is thus formed through the joint 46.

Instead of the pivot joint 58, it would alternatively also be possible for the joint 46 to be designed in the form of a ball joint or in the form of a pivot joint with a pivot axis which extends transversely, in particular vertically, to the suction opening 40 or the wiper lip edge 62.

The Hartflächenabsauggerät 12 further includes a blocking device 102 for positive and / or positive locking of the joint 46 in at least one blocking position. In the embodiment shown in the figures, the blocking device 102 defines a total of four blocking positions.

The blocking device 102 comprises a locking mechanism 104 with first and second locking elements 106 and 108. These are designed such that they can be engaged in at least one exemplary embodiment illustrated in the figures in a total of four locking positions. - -

FIGS. 5 and 6 show two different locking positions. FIG. 7 schematically shows how the first and second locking elements 106 and 108 are disengaged and occupy an adjustment position of the blocking device 102.

The first locking elements 106 are assigned to the first joint element 50 or formed thereon. The second locking elements 108 are assigned to the second joint element 54 or formed thereon. In the locking positions, the first and second hinge elements 50 and 54 are immovably held together.

The locking mechanism 104 is in the form of a Rastverstellmechanismus 110 with first and second locking elements 112 and 114 is formed. The first and second latch members 112 and 114 define the first and second latch members 106 and 108.

The first latching element 112 is formed in the form of a row of teeth 118 with a plurality of latching teeth 116. Between the locking teeth 116 a total of four locking recesses 120 are formed on the row of teeth 118, in which the second locking element 114, which is in the form of an elongated cylindrical pin 122, can engage in a locking position.

The first locking elements 106 are integrally formed on the first joint element 50 pointing in the direction of the annular groove 86, in a recess 124 in mutually parallel side walls 126 of the first joint member 50th

The locking mechanism 104 further includes a biasing member 128. It is in the form of a curved leaf spring 130 which is centrally located below the second detent member 114 and has two free ends 132 which abut a support wall 134 extending substantially parallel to the row of teeth 118. - -

The biasing member 128 is configured to press the second locking member 108 toward the first locking members 106 in a home position. It thus holds the locking mechanism 104 in one of the locking positions.

The blocking device 102 further comprises an actuating element 136 in the form of a pivotable about a pivot axis 138 pivotally mounted actuating knob 140. This has from a bottom projecting from a bottom parallel to the pivot axis 138 open, hollow cylindrical bearing shaft receiving 142, which corresponds to a formed on the second joint member 54, cylindrical bearing shaft 144 is formed. An opening width of the bearing shaft receptacle 142 is slightly smaller than a diameter of the bearing shaft 144, so that the actuating knob 140 with the bearing shaft receptacle 142 can be latched onto the bearing shaft 144.

At the other end of the actuating button 140, a carrier plate 146 is substantially following a curvature of the actuating head 140 and formed substantially parallel to the support wall 134. The support plate 146 carries along its projecting free end 148, the second locking element 114th

If a force is exerted on the actuating element 136 in the direction of the arrow 150, ie a torque about the pivot axis 138 in the view shown in Figure 7 in the counterclockwise direction, the second locking element 114 is moved against the action of the biasing member 128 from one of the recesses 120 until the second latching element 114 completely releases the first latching elements 112. The blocking device 102 now assumes the adjustment position or release position. The hinge elements 50 and 54 can now be pivoted substantially freely relative to each other about the pivot axis 60. - -

When the actuating button 140 is released, the deformed biasing element 128 forces the first locking element 106 toward the second locking elements 108 again and preferably between two locking teeth 116 into one of the locking recesses 120. The blocking device 102 is now completely blocked again. A change in an orientation of the suction nozzle 30 relative to the housing 16 can only take place when the first and second locking elements 106 and 108 have been disengaged by actuation of the actuating element 136.

Of course, the blocking device 102 may alternatively be formed such that the locking mechanism 104 is triggered by applying a corresponding torque to the hinge elements 50 and 54 relative to each other about the pivot axis 60. This can then be achieved, for example, by allowing the locking elements 106 and 108 to slide on one another. Corresponding shapes for forming the locking elements 106 and 108 are familiar to the person skilled in the art.

As described, the actuator 136 is cooperatively disposed with the latch members 106 and 108 and the biasing member 128 and is configured to disengage the first and second latch members 106 and 108 as a result of actuation.

The blocking device 102 optionally also comprises a clamping mechanism 150 with first and second clamping elements 154 and 156, which are formed in particular by the first and second locking elements 106 and 108. They interact with each other to specify an adjustment force required for adjusting the joint 46. They are also arranged or formed movable relative to each other. In the embodiment shown in the figures, a clamping force acting between the first and second clamping elements 154 and 156 is infinitely variable. Alternatively, it can be provided changeable in defined steps. - -

The first and second clamping members 154 and 156 engage and cooperate in a clamping position such that the first and second hinge members 50 and 54 are immovably held relative to each other. In the embodiment shown in the figures, this can be achieved in particular by supporting the locking elements 106 and 108. Alternatively, directly attacking each other

Clamping elements 154 and 156 may be provided, which cooperate purely non-positively, without entering into a positive connection. In this case, the clamping elements 154 and 156 in the adjustment position of the joint 46 can then cooperate such that the first and second hinge elements 50 and 54 are movable relative to each other against a clamping force action of the first and second clamping elements 154 and 156. Further, the first and second Clamping elements 154 and 156 are completely disengaged in the adjustment position, so in particular do not touch.

In order to engage the clamping members 154 and 156 with each other, a biasing member 158 formed by the leaf spring 130 serves. It holds the first and second clamping elements 154 and 156 in a basic position of the clamping mechanism 152 in a clamping position.

As already described above in connection with the locking mechanism 104, the first and second clamping elements 154 and 156 can also be transferred from the clamping position into the adjustment position against the action of the biasing element 158.

Unlike the exemplary embodiment of a hard surface suction device 12 exemplified in the figures, the blocking device 102 may optionally also comprise two independently acting locking mechanisms and clamping mechanisms which are not formed by the same parts or elements. So a redundant construction can be achieved. - -

The hard surface suction device 12 further comprises an anti-lock device 160 for deactivating the blocking device 102 in a deactivation position. It comprises an anti-lock element 162, which is movably mounted on the first joint element 50. It can be brought from an activation position, as shown schematically in FIGS. 5 and 6, into a deactivation position, as shown schematically in FIG.

The anti-lock element 162 has two end edges 164 projecting in the direction of the carrier plate 146, which are formed substantially parallel to the support wall 134. Side walls 166 of the anti-lock member 162 have a slot 168 formed between two projections 170 and 172 which project away from the side walls 166 away from each other. The slot 168 is oriented toward the end edges 164 of the side walls 166.

On the first joint member 50 is further from an end wall 174, which points in the direction of the suction nozzle 30, in the opposite direction, ie in the direction of the second joint member 54 out, a support wall 176 protruding, which engages from below into the anti-lock member 162. From the support wall 176 extending parallel to each other two side walls 178, which are spaced by a gap 180 of further side walls 182. Each side wall 166 engages one of the gaps 180 between the side walls 178 and 182.

From the side wall 182 is a projection 184 obliquely in the direction of the support wall 134 facing out, which is formed corresponding to the slot 168 and can engage in these in the deactivation. In this position, the anti-lock element 162 is held by the first locking element 106, which abuts against the end edges 164 by the biasing element 128.

In order to permanently deactivate the blocking device 102, it is necessary to move from above in the direction of the arrow 188 onto an actuating surface 186 of the anti-blocking device. - - ments 182 are pressed. This is done against the action of the biasing member 128. The projections 170 and 172 and thus the slot 168 can be moved so far towards the support wall 134 that the slot 168 and the projection 184 are disengaged.

The antilocking element 182 can now be pushed away from the end wall 174 on the supporting wall 176, specifically until a locking tooth 192 projecting from the projection 172 in the direction of the actuating surface 186 engages in a recess 190 provided on the side wall 182. In this position, shown in FIG. 7, the front edges 164 protrude so far that the carrier plate 146 can not be moved further in the direction of the row of teeth 118. The first locking element 106 can thus no longer be brought into engagement with the second locking elements 108. The blocking device 102 is permanently deactivated by the anti-lock device 160 as described. There is now a continuous pivoting of the hinge elements 50 and 54 relative to each other about the pivot axis 60 possible, in the context of the predetermined end stop positions, ie in a predetermined angular range.

In order to re-activate the blocking device 102, it is necessary to press again on the actuating surface 186 in the direction of the arrow 188, so that the latching noses 192 can emerge from the recesses 190, whereby a movement of the anti-blocking element 162 in the direction of the end wall 174 is made possible again. If the anti-lock element 162 is displaced far enough in the direction of the end wall 174, the projections 184 can again engage in the slots 168 and hold the anti-lock element 162 in the deactivation position.

With the Hartflächenabsauggerät 12 hard surfaces can be easily rid of them wetting a liquid. An angle of incidence of the suction nozzle 30 relative to the hard surface can be maintained, even if a relative orientation between the suction nozzle 30 and the housing 16 by pivoting about the pivot axis 60 by means of the hinge 46 takes place. A sol- Pivoting can be prevented by the blocking device 102 in a plurality of defined positions. The blocking device 102 can be deactivated in the manner described by the anti-lock device 160.

The hard surface cleaning device 10 is designed in particular in the form of a window vacuum 194, which allows easy cleaning, in particular vertical hard surfaces, for example of window panes, into a floor-deep area due to the intended joint 46, by changing an orientation of the housing 16 and the suction nozzle 30th relative to each other. If no pivoting between the suction nozzle 30 and the housing 16 is desired, the hinge 46 can be locked or blocked by means of the blocking device 102.

Instead of the articulation 46 described, a joint can also be arranged or formed in the region of a wiper lip receptacle 196 for receiving a rear region of the wiper lip 42 or in the region of a support lip receptacle (not illustrated in the figures). In this case, the joint would then be arranged or formed completely on the suction nozzle 30.

The exemplary embodiment of a hard surface suction device 12 shown in the figures has the joint 46 either on the suction nozzle 30 or on the hard surface suction device 12, depending on whether the joint unit 48 is coupled to the suction nozzle 30, as shown for example in FIG with the housing 16, in which case the suction nozzle 30 can be uncoupled from the joint unit 48, namely from the first joint element 50. In this case, the joint 46 would then be arranged on the hard surface suction device 12 or coupled to its housing 16.

For handling the Hartflächenabsauggeräts 12 ultimately it does not matter where and in what form the joint is formed. In particular, - - It is particularly favorable that the joint by means of a blocking device either released or can be fully or partially locked.

- -

Hard surface cleaning device

Hartflächenabsauggerät

Handle

casing

suction

suction turbine

electric motor

battery

footprint

Dirty liquid tank

suction nozzle

Saugdüsengehäuseunterteil

suction

Saugkanalende

suction opening

wiping lip

supporting lip

joint

joint unit

first joint element

admission

second joint element

coupling device

pivot

swivel axis

Abstreiflippenkante

pivot bearing

first bearing element

second bearing element

sleeve section _ -

72 carrier element

74 joint element part

76 joint element part

78 sleeve section

80 recording

82 channel end

84 channel section

86 ring groove

88 hose section

90 longitudinal axis

92 annular bead

94 advantage

96 nose

98 nose recording

100 flow channel

102 blocking device

104 locking mechanism

106 first locking element

108 second locking element

110 locking mechanism

112 first locking element

114 second locking element

116 locking tooth

118 row of teeth

120 recess

122 pen

124 deepening

126 side wall

128 biasing element

130 leaf spring

132 end

134 retaining wall

136 actuator , -

138 pivot axis

140 operating button

142 bearing shaft holder

144 bearing shaft

146 carrier plate

148 end

150 arrow

152 clamping mechanism

154 first clamping element

156 second clamping element

158 biasing element

160 anti-lock device

162 anti-lock element

164 front edge

166 side wall

168 slot

170 advantage

172 lead

174 front wall

176 support wall

178 side wall

180 gap

182 side wall

184 lead

186 actuating surface

188 arrow

190 recess

192 locking tooth

194 window vacuum

196 wiper lip pickup

Claims

claims

Suction nozzle (30), in particular for a suction device (18) comprising portable Hartflächenabsauggerät (12), which suction nozzle (30) has a suction opening (40) to which a suction channel (36) connects, the suction port (40) facing away from the suction channel end (38) is connectable to the suction device (18), characterized in that a joint (46) is arranged or formed between the suction opening (40) and the suction channel end (38) for moving the suction opening (40) relative to the suction channel end (38) and that a blocking device (102) is provided for non-positive and / or positive locking of the joint (46) in at least one blocking position.

Suction nozzle according to claim 1, characterized by a wiper lip (42) and a support lip (44), which wiper lip (42) and which support lip (44) define therebetween the suction opening (40).

Suction nozzle according to one of the preceding claims, characterized by a support lip receptacle for the support lip (44) and / or a wiper lip receptacle (196) for the wiper lip (42), wherein the hinge (46) in the region of the support lip receptacle and / or the wiper lip receptacle (196). arranged or formed.

Hard surface suction device (12) with a suction device (18) and with the suction device (18) connected or connectable Saugkanalanschluss which with a Saugkanalende (38) of a suction channel (36) of a suction opening (40) having suction nozzle (30) connected or connectable , characterized in that a joint (46) is arranged or formed between the suction channel connection and the suction device (18) for moving the suction channel connection relative to the suction device (18) and that a blocking element is provided. Direction (102) is provided for non-positive and / or positive locking of the joint (46) in at least one blocking position.

5. Hartflächenabsauggerät according to claim 4, characterized by a suction nozzle, that the suction nozzle (30) has a suction opening (40) to which a suction channel (36) connects, the suction port (40) facing away from the suction channel end (38) connected to the Saugkanalanschluss or connectable.

6. Hartflächenabsauggerät according to claim 5, characterized in that the suction nozzle (30) comprises a wiper lip (42) having a Abstreiflippenkante (62) and a support lip (44) having a support lip edge and that the wiper lip (42) and the support lip (44) define the suction opening (40) between them.

7. Hartflächenabsauggerät according to any one of claims 4 to 6, characterized by a housing (16) in which the suction device (18) is arranged or formed, wherein the suction nozzle (30) coupled in a working position with the housing (16) and a disconnected position is separated from the housing (16).

8. Suction nozzle or Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the suction opening (40) is formed at least partially rectilinear or curved.

9. Suction nozzle or Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the joint (46) defines at least one pivot axis (60).

10. Suction nozzle or Hartflächenabsauggerät according to claim 9, characterized in that the at least one pivot axis (60) parallel or transverse, in particular perpendicular, to the suction opening (40).

11. Suction nozzle or Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the joint (46) is in the form of a ball joint.

12. Suction nozzle or Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the joint (46) comprises a pivot bearing (64).

13. Suction nozzle or Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the joint (46) comprises first and second, mutually engaging and cooperating hinge elements (50, 54) which in an adjustment position relative to each other about the at least one pivot axis ( 60) are pivotable.

14. Suction nozzle or Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the blocking device (102) comprises a locking mechanism (104) having first and second locking elements (106, 108) which engage in at least one locking position and in the adjustment except Engage that the first and second locking elements (106, 108) on the one hand to the first joint member (50) and the second hinge member (54) are assigned and that in the at least one locking position, the first and second hinge elements (50, 54) immovably to each other are held.

15. Suction nozzle or Hartflächenabsauggerät according to claim 14, characterized in that the locking mechanism (104) in the form of a Rastverstellmechanismus (110) is formed with first and second locking elements (112, 114) which form the first and second locking elements (106, 108) ,

16. Suction nozzle or Hartflächenabsauggerät according to claim 15, characterized in that the first and second latching elements (112, 114) min- at least one toothed row (118) having at least one latching tooth (116).

A suction nozzle or hard surface suction device according to any one of claims 14 to 16, characterized in that the locking mechanism (104) comprises at least one biasing element (128) which clamps the first and second locking elements (106, 108) in a home position of the locking mechanism (104). holds in the locked position.

18. Suction nozzle or Hartflächenabsauggerät according to claim 17, characterized in that the first and second locking elements (106, 108) against the action of the biasing member (128) can be transferred from the locking position to the adjustment position.

19. Suction nozzle or Hartflächenabsauggerät according to claim 17 or 18, characterized in that the biasing member (128) on the first or second hinge element (50, 54) or on the first or second locking element (106, 108) arranged or formed, in particular in one piece ,

20. Suction nozzle or Hartflächenabsauggerät according to any one of claims 17 to 19, characterized in that the biasing element (128) in the form of a spring, in particular in the form of a leaf spring (130) is formed.

21. Suction nozzle or Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the blocking device (102) comprises a clamping mechanism (152) with first and second

Clamping elements (154, 156) which cooperate with each other to specify an adjustment force required for adjusting the articulation (46).

22. Suction nozzle or Hartflächenabsauggerät according to claim 21, characterized in that the first and second clamping elements (154, 156) are arranged or formed relative to each other movable.

23. Suction nozzle or Hartflächenabsauggerät according to claim 21 or 22, characterized in that between the first and second clamping elements (154, 156) acting clamping force in defined steps or continuously variable.

24. Suction nozzle or Hartflächenabsauggerät according to any one of claims 21 to

23, characterized in that the first and second clamping elements (154, 156) engage and cooperate in at least one clamping position such that the first and second hinge elements (50, 54) are held immovably relative to each other.

25. Suction nozzle or Hartflächenabsauggerät according to any one of claims 21 to

24, characterized in that the first and second clamping elements (154, 156) in the adjustment position of the joint (46) cooperate such that the first and second hinge elements (50, 54) are movable relative to each other against a clamping force effect of the first and second clamping elements (154, 156), and / or that the first and second clamping elements (154, 156) are disengaged in the adjustment position.

26. Suction nozzle or Hartflächenabsauggerät according to any one of claims 21 to

25, characterized in that the clamping mechanism (152) comprises at least one biasing element (158), which holds the first and second clamping elements (154, 156) in a basic position of the clamping mechanism (152) in the at least one clamping position.

27. Suction nozzle or Hartflächenabsauggerät according to claim 26, characterized in that the first and second clamping elements (154, 156) against the action of the biasing member (158) can be transferred from the clamping position into the adjustment position.

28. Suction nozzle or Hartflächenabsauggerät according to claim 26 or 27, characterized in that the biasing member (158) on the first or second hinge member (50, 54) or on the first or second clamping element (154, 156) arranged or formed, in particular in one piece ,

29. Suction nozzle or Hartflächenabsauggerät according to any one of claims 26 to 28, characterized in that the biasing element (158) in the form of a spring, in particular in the form of a leaf spring (130) is formed.

30. Suction nozzle or Hartflächenabsauggerät according to any one of the preceding claims, characterized by an anti-lock device (160) for deactivating the blocking device (102) in a deactivation position.

31. Suction nozzle or Hartflächenabsauggerät according to claim 30, characterized in that the anti-lock device (160) from the deactivation tion position in an activation position can be brought to activate the blocking device (102).

32. Suction nozzle or Hartflächenabsauggerät according to claim 30 or 31, characterized in that the anti-lock device (160) comprises at least one anti-lock element (162) for deactivating the blocking device (102) in the deactivation position.

33. Suction nozzle or Hartflächenabsauggerät according to claim 32, characterized in that the at least one anti-lock element (162) can be brought from the deactivation position into the activation position for activating the blocking device (102).

34. Suction nozzle or Hartflächenabsauggerät according to claim 32 or 33, characterized in that the at least one anti-lock element (162) movable, in particular displaceable and / or pivotable, arranged or formed on the suction nozzle (30) or on Hartflächenabsauggerät (12).

35. Suction nozzle or Hartflächenabsauggerät according to one of claims 32 to 34, characterized in that the at least one anti-lock element (162) with one of the locking elements (106; 108) and / or with one of the clamping elements (154; 156) and / or with a the biasing members (158) are cooperatively arranged or configured to disengage the first and second locking members (106; 108) and / or the first and second clamping members (154; 156) in the anti-lock position.

36. Suction nozzle or Hartflächenabsauggerät according to any one of the preceding claims, characterized in that the blocking device (102) comprises at least one actuating element (136) for transferring the blocking device (102) of the at least one blocking position in the adjustment position in which the joint (46) is mobile.

37. Suction nozzle or Hartflächenabsauggerät according to claim 36, characterized in that the at least one actuating element (136) with one of the locking elements (106, 108) and / or with one of the clamping elements (154, 156) and / or with one of the biasing elements ( 158) is cooperatively arranged or adapted to disengage the first and second locking members (106, 108) and / or the first and second clamping members (154, 156) due to actuation. Hard surface suction device according to one of claims 4 to 37, characterized in that it is in the form of a window suction (194).