EP1214902A2 - Nozzle for a suction cleaner - Google Patents

Abstract

The invention relates to a nozzle (2) for a vacuum cleaner, in particular a hard floor nozzle, with a nozzle head (4) seated on the floor and a nozzle body (5) connecting the nozzle head (4) with a vacuum cleaner, with a connecting piece on the nozzle body (5) (6) and the nozzle (2) can be moved as a whole with rollers (10) or over sliding surfaces, and a suction channel is provided, which extends from the connecting piece (6) through the nozzle body (5) in the nozzle head ( 4) flows out. In order to further develop a nozzle (2) for a vacuum cleaner of the type in question in such a way that improved edge suction, for example along baseboards, and improved accessibility in corners and niches, it is proposed that the nozzle head (4 ) is pivotable relative to the nozzle body (5).

Description

The invention relates to a nozzle for a vacuum cleaner, especially hard floor nozzle, with one on the floor seated nozzle head and one with the nozzle head a vacuum cleaner connecting nozzle body, wherein a connector is formed on the nozzle body and the nozzle as a whole with rollers or over sliding surfaces is movable and a suction channel is provided is, that of the connecting piece through the Extending nozzle body, opens into the nozzle head.

Nozzles for vacuum cleaners of the type in question are known. In this regard, are used to treat hard floors appropriately trained hard floor nozzles and Treatment of carpets appropriately trained Nozzles, preferably with rotating brush rollers, are offered. These known nozzles have been found to be particularly useful vacuuming in niches, vacuuming around objects, e.g. chair or table legs, as well as vacuuming along baseboards or the like as problematic. This is only a laborious one for the user Handling of the vacuum cleaner enables. So is a satisfactory suction along skirting boards usually only achievable if the Nozzle with its front edge across the usual, through the Castors predetermined suction direction along the baseboard is moved. This transverse movement is for the user associated with increased effort. On Vacuuming niches whose opening dimensions are essential is smaller than the nozzle width, is with the known No nozzles possible. This may be a Exchange of the nozzle for a crevice nozzle or the like necessary.

In view of the prior art described above becomes a technical problem of the invention seen in it a nozzle for a vacuum cleaner in Advance training in the manner in question such that an improved edge suction, e.g. along baseboards, as well as improved accessibility in corners and niches.

This problem is first and foremost solved by the subject matter of claim 1, wherein is based on the fact that the nozzle head is relative to the nozzle body is pivotable. As a result of this Design is a nozzle of the type in question specified, which contrary to the known one-piece Versions made of two pivotable relative to each other Share, so with the connector the nozzle body connected to the vacuum cleaner and the the latter relatively pivotable nozzle head. As a result, increased nozzle flexibility is achieved. For the extraction of corners or niches or for Edge suction of e.g. baseboards is the nozzle head in an optimal position for this work can be brought. So pivots, for example, along the nozzle head for edge extraction of baseboards in a position in which the Front edge of the nozzle head parallel to the baseboard is aligned and at an angle, for example. perpendicular for the usual suction or displacement direction of the vacuum cleaner, runs along this skirting board. The nozzle body remains in its usual direction of suction or displacement, so that an edge suction by means of the swiveled nozzle head through the further in the direction of displacement aligned rollers of the nozzle body no additional effort for the user means. It is preferred here that the nozzle head automatically in the event of a collision with an object, such as a baseboard or a chair leg, relative pivoted to the nozzle body. So is in the simplest Wise suction around objects, such as. Chair or table legs, made possible by the nozzle head when moving the vacuum cleaner in the usual suction direction (Back and forth movement) by the given Swiveling around the object in the way running. Sucking in niches is also due to the invention Solution simplified. When applied, in particular off-center loading of the front edge of the nozzle, the nozzle head swivels automatically in the course of the forward movement of the vacuum cleaner into one Swivel position, which retracts the nozzle in the niche allowed. Has proven to be particularly advantageous it turns out that by the two-part according to the invention Execution of the nozzle also vacuumed deep niches can be. This also results in a comfortable and gentle vacuuming around furniture feet and obstacles, always a convenient and automatic adjustment to the environmental situation while maintaining the usual way of working - only back and forth movement, no sideways movement. In a preferred one Design of the subject matter of the invention provided that the pivotability over a Hinge is formed with a vertical hinge axis. This joint is penetrated by that, by that Connection piece extending through the nozzle body Suction channel, with further nozzle head side of the joint preferably the suction channel mouth is formed in the nozzle head is. In this regard, it is further proposed that that the nozzle head in a horizontal plane is pivotable. As a result influenced a pivoting of the nozzle head neither level alignment still an angle of attack of Vacuum cleaner to the nozzle, so that the user at one Swiveling the nozzle head no corrective measures be requested. Furthermore, it is proposed that the nozzle head is in the pivoted state partially extends below the nozzle body. according to the nozzle head dips in the pivoted state at least with a partial area in one of the nozzle body covered area. The swiveling of the Nozzle under the nozzle body allowing free space is further selected so that at least one pivoting of the nozzle head to the original normal position is the largest width of the nozzle in the area of the fixed nozzle body by pivoting of the nozzle head is undershot. To in particular further improve suction in niches, it is suggested that the nozzle head be in the normal position a larger width (i.e. extension across to Travel direction) as depth (extension in travel direction) having. A large width of the nozzle head is desired for vacuuming large areas. For suction of niches, however, should be transverse to the direction of travel measured smaller width are available. this The shallow depth of the nozzle head creates a desire encountered what depth in a 90 ° pivoted State of the nozzle head the width of the same in this Position. So it is preferred that the width of the Nozzle head more than twice the greatest depth of the nozzle head. For example. can be a ratio of Nozzle head width of 3: 1 provided his. With an exemplary width of 300 mm therefore a maximum depth of approx. 100 mm is specified. It is further suggested that the depth of the nozzle head across the width of the nozzle head is. So it turns out to be particularly beneficial if the nozzle head has a circular segment-like layout having. Accordingly, a straight line, in Normal position extending transversely to the direction of travel Given leading edge, with a rear Edge through one, the ends of the straight front edge connecting circular arc line is formed. This Rounding the nozzle head proves to be handling-related advantageous, especially when unscrewing of the nozzle head from narrow niches, being further due to the narrow design viewed in the depth direction of the nozzle head also the suction depth in Niches is improved. It is advantageous further provided that the joint in the area of the largest Depth of the nozzle head is formed. according to this results regardless of whether the nozzle head on the left or right side of the joint by an object always has the same swivel characteristic of the nozzle head. In a further embodiment of the subject of the invention it is provided that the Nozzle head relative to the nozzle body by 360 ° and more is pivotable. Accordingly, the nozzle head is preferred can be rotated as required, even after a 360 ° rotation to return to its original normal position. It is further suggested that one or more Preferred swivel positions of the nozzle head locked are, for example. spring-supported locking lugs, sliding or Roll body in appropriately designed recesses can kick. So in a preferred Design suggested that the nozzle head in one, based on the normal position, at which the straight front edge perpendicular to the usual Direction of travel is aligned, 90 ° or 270 ° position locked in which locked position the Nozzle head is pivoted in such a way that it is related to the width - shallow depth in the direction of travel points, for example for vacuuming niches. Are preferred the 0 ° and 180 ° positions are locked, in which positions the nozzle head is aligned so that its Width extension transverse to the direction of travel, d. H. is aligned in the normal position. Furthermore there is also the possibility of more than two To design pivoted positions latched, for example. four positions offset by 90 ° to each other. As special Training proves to be advantageous at which the nozzle head after swiveling into a Intermediate position spring-assisted in a basic or Swiveling the rest position back. For example, the nozzle body against the nozzle head with a handling technique optimal spring force can be adjusted by For example, the joint protruding into the nozzle head penetrating suction channel an eccentric or elliptical Can have shape with locking lugs, which a Spring back enables a spring element. Furthermore there is also the possibility of a simple, mutual suspension by means of tension, compression or leaf springs. The position of the nozzle head is preferred in the 0 ° and 180 ° positions, which are the normal positions correspond, spring-loaded latched. These two Positions correspond to the standard application, that is Surface suction. The nozzle head is preferred from each other intermediate position, i.e. also from the 90 ° to Normal position swiveled working position, always spring-assisted again automatically in the normal position moved back. The proposed spring support can also by an appropriate Material elasticity in the area of the joint his. In a further alternative embodiment can be provided in this regard that a spring in Form of an elongated element is provided, which runs across the suction channel in the Nozzle head extends. For example, an elongated one Spring steel can be arranged in the nozzle head, which acts on it in such a way that a deflection spring torque built up the reset the nozzle head in the normal position. This normal position of the nozzle head is defined due to the undeflected, elongated orientation of the Spring element. It proves to be advantageous here if the intended spring is held in the nozzle head and on the one that penetrates the nozzle head Suction channel of the nozzle body acts. So it goes on suggested that the spring penetrate the suction channel. An orientation of the elongated spring element parallel to an end face Edge edge of the nozzle head, this at about the middle Enforcement of the suction channel cross section. The suction channel wall is for this purpose with radially aligned openings for the throughput of the spring or with appropriately aligned Provide grooves for receiving spring sections, so that a deflection of the nozzle head relative to the nozzle body is bent out on both sides over the Extending suction channel wall and in the nozzle head held spring sections causes. Thus arises a driving torque, which is on the nozzle head acts in the direction of the normal position. Alternatively, the training can also be chosen in this way be that the spring is connected to the suction channel, wherein the spring further preferably the suction channel not enforced. Rather, there is a free end here the spring in the area of the suction channel wall, so For example, in an appropriately aligned hole or Groove. It is also conceivable that the free spring end in the course of Production around the suction channel wall. Also there is a possibility that the spring will wall the Suction channel interspersed secant, although conceivable is that the spring is on both sides of the secant Throughput through the suction channel wall or just extends unilaterally to this. In an advantageous Training is provided that the spring over part of the wall of the suction channel in the circumferential direction is adapted to this. So one can on the Suction channel wall acting spring section in a Insert the annular section-shaped groove of the wall. Here, too, there is an alternative extrusion coating of the spring section in the course of the production of the suction channel wall conceivable. It is also proposed that outside the Suction channel opposite abutment for the spring are formed in the nozzle head. For example, guide pins arranged on both sides of the spring or the like may be provided. In this regard it proves an embodiment is also advantageous, in which the spring in the area of an outer boundary Shaping for the spring in the deflected state Recess is held. This is the simplest Way through the recess edge design the characteristic the spring can be influenced. Independent of The design of the abutment continues to prove as advantageous that the spring with respect to an abutment is free to move. It is also proposed that two springs are provided. For example, in Basic position is the same. alternative However, it can also be provided that the springs run in the opposite position. The build-up of a uniform restoring torque with a deflection in one as well as in other direction is improved by the springs are aligned symmetrically to each other. Will continue proposed that the spring be designed as a leaf spring is. Spring steel can be used as spring material, Fiberglass and corresponding plastics are provided his. Furthermore, the geometry of the Leaf spring width, thickness a desired characteristic of the spring behavior can be designed. The hysteresis behavior around the zero position, d. H. around the normal position Reducing to a minimum is preferred in one Design suggested that the leaf spring has a curved cross section. So it can Leaf spring made from a profiled sheet of metal or steel be shaped. In this regard, one is preferred Leaf spring with a spherical bulge. So can such a leaf spring perpendicular to the longitudinal direction in be curved in the plane of the profile. Profiled by this -bombierte- leaf spring also turns the Nozzle head always back to an exact zero position and provides a stable zero position, similar to a detent As a result of the above solutions is at low number of parts a regressive torque generation given implicit zero position detent. It is a reliable, inexpensive spring mechanism realizes a zero stop without additional Component implies. It also becomes regressive and doesn't produce progressive torque, this without further design measures or components. In a further embodiment of the subject matter of the invention it is provided that the nozzle head on the bottom has one or more bristle sections which Bristle sections in particular to limit the suction space serve with hard floor nozzles. To also suction under objects, e.g. armchairs or the like at a relatively short distance from the one to be processed To allow soil, it is proposed that a Height of the nozzle head, based on the free vertical extension a bristle of a bristle section, including the bristles two to five times that corresponds to the free vertical length of the bristle. So is with a usual free bristle length of approx. 10 mm a height of the nozzle head of 20-50 mm provided what in the simplest way of vacuuming under, a free space objects left. Further will be in this regard suggested that the greatest depth of the Nozzle head three to six times the height of the Corresponds to the nozzle head. It is also provided that the Nozzle body on the one hand on the nozzle head and on the other on rollers attached to the nozzle body or Is supported. To have a slim design, especially for suction in niches suggested that the nozzle body in the area of Nozzle head has a width that is a fraction corresponds to the width of the nozzle head. It's like that in one preferred embodiment provided that the width of the nozzle body in the area of the nozzle head one third up to a fifth of the width of the nozzle head, for example with a nozzle head width of 300 mm about 60 mm. It is further preferred that the nozzle head in width towards the casters expanded, further proposed in this regard will that the width of the nozzle body in the range of Rollers or the sliding surfaces about half of the Corresponds to the width of the nozzle head. Also in this Roller area is the width of the nozzle body so chosen that an overall slim design in particular reached to allow suction in niches is. In this regard, it continues to prove to be advantageous that the width of the nozzle body in the area the rollers or the sliding surfaces about the corresponds to the greatest depth of the nozzle head. In a Further development of the subject matter of the invention is proposed that the nozzle body is between the nozzle head and the rollers or sliding surfaces like a bridge extends, here the height of the bridge section corresponds approximately to the height of the nozzle head. Will continue suggested that the bridge have a bridge clearance at the bottom leaves and that the length of the bridge clearance - viewed in the direction of displacement - more than that Half of the width of the nozzle head corresponds to what the desired pivotability by 360 ° and more Nozzle head is guaranteed. It is also provided that the connection piece in a first swivel joint pivotable about an axis transverse to the direction of travel of the nozzle is. As a result of this configuration, the over the connecting piece with the vacuum cleaner connected to the nozzle regardless of the swivel position of the nozzle head total flattened to about vacuum under furniture. Furthermore, it is proposed that the connecting piece continues a second Has swivel joint with a deviation from extending the central axis of the connecting piece Pivot axis. By means of this second swivel joint is an overall improved manageability of the Nozzle, in particular movement in the direction of the curve, given. As a result of the aforementioned configurations the nozzle according to the invention has three different ones Pan levels on. It is also envisaged that the first Swivel joint has a locked secure preferred position, the detent not by weight the nozzle can be lifted. As a result of this configuration is a lift-off position of the nozzle by swinging it open given the same about the roller axis to larger To be able to record dirt particles, which otherwise would be pushed in front of the nozzle. To obtain the overall flat position of the vacuum cleaner is this locking of the withdrawal position emphasized will canceled. All of the above features are both in Connection with hard floor nozzles as well as with nozzles Carpet extraction, if necessary with rotating brush rollers, significant. Because when using suction nozzles on particularly dense carpets in the area a relatively high negative pressure is built up in the suction mouth will simplify the swiveling of the nozzle head proposed that funds be earmarked for Influencing a suction air flow depending from a pivoting position of the nozzle head. The Suction air flow is influenced in such a way that the Frictional force reduced below the suction nozzle head is so that even when vacuuming carpets in the easiest way is to deflect the nozzle head for driving around obstacles and swinging back he follows. In this regard, one advantageous further training provided that the Suction air flow lower in a swivel position is as in a non-pivoted position. In an exemplary embodiment is provided that in a swivel position an auxiliary air path is open. It is further preferred that when the nozzle head is pivoted through an angle > 0 °, d. H. from the normal operating position of the Nozzle head transversely to the direction of travel, a secondary air path is opened. The latter can be in the range of Swivel joint or in the area of other components be trained. With a swivel angle of 0 ° (normal operating position) no secondary air flows in, so that the full suction power is available here stands. This solution is not only for passive carpet nozzles, but also with carpet nozzles with rotating Brush rollers applicable. This is done in the moving (Nozzle head) or the fixed part (nozzle body) an electric motor integrated into the nozzle, which directly, for example via a transmission or via a power transmission, For example, toothed belt, or integrated in the nozzle head drives one or more brush rollers. Also is conceivable, the drive via a driven by the air flow Realize turbine. The power supply is carried out by means of lines running over slip rings or other suitable elements in the moving part (Nozzle head). To in one Swiveling position of the nozzle head, especially in the outer one To offer high suction power in the corner area thereof, is proposed in an advantageous further development, that in a swivel position the suction air flow with respect to a first corner area of the nozzle head is reinforced. So is in the direction of movement swiveled nozzle head for effective suction in an increased volume flow is used in the front area, for example, a deeper suction under furniture or in Enable niches. This is reinforced Effect in further training in that in a Swivel position of the suction air flow with respect to a second corner area of the nozzle head is reduced. In this regard, it is further preferred that reinforcement of the suction air flow with respect to a first corner area by reducing the suction air flow with respect of the second corner area is reached. It takes place thus a concentration of the suction in the first, preferably in the front corner area in the direction of movement of the nozzle head. For example. can be provided that the Opening the suction channel to the second corner area in Dependence on the swivel angle is reduced while the opening in relation to the first corner area is unaffected. The reduction of the suction channel opening the second corner area can be up to one Lead the suction channel to this corner area. After that, the full suction power is in the first Corner area. In an exemplary embodiment of the subject matter of the invention it is provided that Closure of the suction channel in relation to a corner area by reducing the cross section between a front wall of the front edge corresponding to the Nozzle head and a vertical suction duct wall section he follows. This can be done, for example, by screwing in a vertical suction duct wall section in the course of Nozzle head swiveling takes place at which turning a reduction in the cross section of the suction channel opening the second corner area is reached. In another exemplary embodiment of the subject matter of the invention it is envisaged that in the nozzle head perpendicular partition is provided and that the closure of the suction channel by reduction the distance between a vertical suction duct wall and the partition is made. This is a Valve principle achieved, with one in the nozzle head protruding suction channel end piece from one direction closed on the nozzle head semi-circular Area and one through the partition of the nozzle head shared open area. In normal working position, d. H. with vertical alignment of the nozzle head to the direction of movement, lets through the partition divided open area a symmetrical flow of the suction channel. In the deflected state of the nozzle head is that assigned to the second end region Part of the suction channel through the partition and more preferably through a bottom area of the nozzle head reduced in diameter or closed, so that an increased suction air flow in the first corner area is present. Next is to adjust the nozzle head Uneven floors suggested that the nozzle head be around at least one aligned transversely to the vertical joint axis Tilt axis is movable. It is preferred in this regard an arrangement in which the nozzle head around two horizontally aligned, offset by 90 ° to each other arranged tilting axes is movable, according to this cardanic axis arrangement an optimal adjustment of the nozzle head to the floor to be cleaned becomes.

Fig. 1

eine perspektivische Darstellung eines mit einer erfindungsgemäßen Düse versehenen Staubsaugers;

Fig. 2

eine perspektivische Einzeldarstellung der Düse;

Fig. 3

die Draufsicht auf die Düse bei Ausrichtung des Düsenkopfes in normaler, der Flächenbearbeitung dienender Stellung;

Fig. 4

die Ansicht der Düse in einer Stellung gemäß Fig. 3;

Fig. 5

die Unteransicht der Düse bei um 90° verschwenkter Position des Düsenkopfes;

Fig. 6

die Seitenansicht gegen die Düse, eine Abhebestellung des Anschlussstutzens der Düse darstellend, bei strichpunktiert dargestellter abgehobener Stellung;

Fig. 7

die Seitenansicht gegen die Düse bei flachgelegter Stellung des Anschlussstutzens;

Fig. 8

eine der Fig. 6 oder 7 entsprechende Darstellung, jedoch die aufgeschwenkte Parkstellung des Anschlussstutzens betreffend;

Fig. 9

eine der Fig. 4 entsprechende Unteransicht der Düse, eine zweite Ausführungsform betreffend;

Fig. 10

eine weitere Unteransicht, eine dritte Ausführungsform betreffend;

Fig. 11

eine vierte Ausführungsform der Düse;

Fig. 12

die Unteransicht der Düse gemäß einer fünften Ausführungsform;

Fig. 13

eine schematische, partiell geschnittene Darstellung des Gelenkbereiches zwischen Düsenkörper und Düsenkopf, bei Ausrichtung des Düsenkopfes in normaler, der Flächenbearbeitung dienender Stellung;

Fig. 14

eine Unteransicht zu Fig. 13;

Fig. 15

eine der Fig. 14 entsprechende Darstellung, jedoch bei um 90° verschwenkter Position des Düsenkopfes;

Fig. 16

eine der Fig. 15 entsprechende Darstellung, jedoch eine alternative Ausgestaltung betreffend;

Fig. 17

eine der Fig. 14 entsprechende Darstellung, ein weiteres Ausführungsbeispiel betreffend;

Fig. 18

eine der Fig. 17 entsprechende Darstellung., jedoch bei um 90° verschwenkter Position des Düsenkopfes;

Fig. 19

eine schematische Schnittdarstellung durch den Gelenkbereich zwischen Düsenkörper und Düsenkopf bei Ausrichten des Düsenkopfes in normaler Stellung, eine weitere Ausführungsform betreffend;

Fig. 20

den Schnitt gemäß der Linie XX-XX in Fig. 19;

Fig. 21

eine der Fig. 20 entsprechende Schnittdarstellung mit einem Düsenkopf in Verschwenkstellung;

Fig. 22

eine schematische, partiell geschnittene Darstellung des Gelenkbereiches zwischen Düsenkörper und Düsenkopf, bei Ausrichtung des Düsenkopfes in normaler, der Flächenbearbeitung dienender Stellung, eine weitere Ausführungsform betreffend;

Fig. 23

den vergrößerten Schnitt gemäß der Linie XXIII-XXIII in Fig. 22;

Fig. 24

eine der Fig. 22 entsprechende Darstellung, jedoch bei um 90° verschwenkter Position des Düsenkopfes;

Fig. 25

eine der Fig. 22 entsprechende Darstellung, jedoch eine weitere Ausführungsform betreffend;

Fig. 26

die um 90° verschwenkte Position des Düsenkopfes gemäß der Ausführungsform in Fig. 25;

Fig. 27

eine weitere der Fig. 22 entsprechende Darstellung in einer weiteren Ausführungsform;

Fig. 28

die Darstellung des Düsenkopfes gemäß Fig. 27 in verschwenkter Position;

Fig. 29

eine weitere Ausführungsform des Düsenkopfes in einer Darstellung gemäß der Fig. 22;

Fig. 30

die verschwenkte Position des Düsenkopfes gemäß Fig. 29;

Fig. 31 - Fig. 36

weitere, der Darstellung in Fig. 22 entsprechende Darstellungen, weitere Ausführungsformen betreffend;

Fig. 37

die verschwenkte Position des Düsenkopfes in einer weiteren Ausführungsform gemäß Fig. 36;

Fig. 38

eine der Fig. 12 entsprechende Darstellung, eine weitere Ausführungsform betreffend.

The invention is explained in more detail below with reference to the accompanying drawing, which only shows several exemplary embodiments. It shows:

Fig. 1

a perspective view of a vacuum cleaner provided with a nozzle according to the invention;

Fig. 2

an individual perspective view of the nozzle;

Fig. 3

the top view of the nozzle when the nozzle head is aligned in the normal, surface-working position;

Fig. 4

the view of the nozzle in a position shown in FIG. 3;

Fig. 5

the bottom view of the nozzle with the nozzle head pivoted by 90 °;

Fig. 6

the side view against the nozzle, showing a lifting position of the connecting piece of the nozzle, with the lifting position shown in broken lines;

Fig. 7

the side view against the nozzle with the connector set flat;

Fig. 8

a representation corresponding to FIG. 6 or 7, but relating to the swung-open parking position of the connecting piece;

Fig. 9

a bottom view of the nozzle corresponding to FIG. 4, relating to a second embodiment;

Fig. 10

a further bottom view, relating to a third embodiment;

Fig. 11

a fourth embodiment of the nozzle;

Fig. 12

the bottom view of the nozzle according to a fifth embodiment;

Fig. 13

is a schematic, partially sectioned representation of the joint area between the nozzle body and the nozzle head, when the nozzle head is aligned in a normal position serving the surface processing;

Fig. 14

a bottom view of Fig. 13;

Fig. 15

14 shows a representation corresponding to FIG. 14, but with the nozzle head pivoted by 90 °;

Fig. 16

a representation corresponding to FIG. 15, but relating to an alternative embodiment;

Fig. 17

a representation corresponding to FIG. 14, relating to a further exemplary embodiment;

Fig. 18

a representation corresponding to FIG. 17, but with the nozzle head pivoted through 90 °;

Fig. 19

a schematic sectional view through the joint area between the nozzle body and nozzle head when aligning the nozzle head in the normal position, relating to a further embodiment;

Fig. 20

the section along the line XX-XX in Fig. 19;

Fig. 21

one of the 20 corresponding sectional view with a nozzle head in the pivoted position;

Fig. 22

is a schematic, partially sectioned representation of the joint area between the nozzle body and nozzle head, with alignment of the nozzle head in the normal position serving the surface processing, another embodiment;

Fig. 23

the enlarged section along the line XXIII-XXIII in Fig. 22;

Fig. 24

22 a representation corresponding to FIG. 22, but with the nozzle head pivoted by 90 °;

Fig. 25

a representation corresponding to FIG. 22, but relating to a further embodiment;

Fig. 26

the position of the nozzle head pivoted through 90 ° according to the embodiment in FIG. 25;

Fig. 27

another representation corresponding to FIG. 22 in a further embodiment;

Fig. 28

the representation of the nozzle head according to FIG 27 in the pivoted position.

Fig. 29

a further embodiment of the nozzle head in a representation according to FIG. 22;

Fig. 30

the pivoted position of the nozzle head according to FIG. 29;

Figures 31-36

further representations corresponding to the representation in FIG. 22, relating to further embodiments;

Fig. 37

the pivoted position of the nozzle head in a further embodiment according to FIG. 36;

Fig. 38

a representation corresponding to FIG. 12, relating to a further embodiment.

Is shown and described initially with reference to Fig. 1 is a vacuum cleaner 1 with a nozzle 2 for processing a floor 3. In the illustrated embodiments the nozzle 2 is a hard floor nozzle. The features described below this nozzle 2 are, however, also in the case of nozzles with rotating Brushes for carpet cleaning conceivable.

The nozzle 2 essentially consists of one the bottom 3 seated nozzle head 4 and one Nozzle head 4 connecting with the vacuum cleaner 1 Nozzle body 5 together, being on the nozzle body 5 Connection piece 6 is designed to connect the Nozzle 2 to the vacuum cleaner 1. Through the nozzle body 5 extends, starting from the connecting piece 6, a suction channel 7, which opens into the nozzle head 4. The suction mouth is provided with the reference number 8.

The connector 6 is on the top in the area of a End of the nozzle body 5 arranged such that the Connection piece 6 in a first swivel joint 9 around an axis x transverse to the direction of travel r of the nozzle 2 is pivotable. On this pivot axis x are also Arranged rollers 10, over which the nozzle body 5 supported on the floor 3 at one end.

Furthermore, the connection piece 6 has a second one Swivel joint 11 on, with a different from the Center axis a of the connecting piece 6 extending Swivel axis y.

As a result of these two swivel joints 9 and 11 is to a tilting of the vacuum cleaner 1 about the axis x allows. Furthermore, the handling is about the axis y the vacuum cleaner 1 facilitates, as a result easy steering of the nozzle 2 is achieved.

The nozzle body 5 extends between the nozzle head 4 and the rollers 10 bridge-like, the Nozzle body 5 in its transverse direction r measured width - starting from the area of the rollers 10 tapers to the end facing away from it.

In the area of this tapered free end is on the Nozzle body 5 of nozzle head 4 relative to nozzle body 5 pivotally supported. This pivotability is via a hinge 12 with a vertical hinge axis z formed, which joint 12 is penetrated by the suction channel 7th

As a result, the nozzle head 4 is vertical Axis z pivotable in a horizontal plane.

The joint 12 is formed so that it can be pivoted the nozzle head 4 by 360 ° and more, d. H. a given complete free pivotability of the same is.

The nozzle head 4 extends partially below of the boom 13 designed as a bridge Nozzle body 5. In the course of pivoting the Nozzle head 4 passes through this one under the Bridge 13 formed bridge clearance 29, the in Direction of travel r measured length 1 more than half corresponds to the width b1 of the nozzle head 4, whereby the nozzle head width b1 to the extent transverse to Direction of travel r in the normal position according to FIG. 3 refers.

The nozzle head 4 has a circular segment-like plan on, with a in the normal position according to FIG. 3 in Travel direction r front, transverse to travel direction r extending rectilinear end edge 14 and one rear, connecting the ends of the front edge 14, in the outline of a circular section edge 15. Here, a circle diameter is selected, the Center point M lies outside the nozzle head 4. Furthermore extends the circle segment of the nozzle head 4 over an angle alpha of approx. 120 °.

As a result of the circular segment-like shape of the nozzle head plan result from the width of the nozzle head 4 different depths, the largest Depth t, measured perpendicular to the end edge 14, in the middle the three-dimension of the nozzle head 4 is reached.

Here is a ratio of nozzle head width b1 to maximum depth t of the nozzle head 4 selected from 3: 1. Accordingly, the nozzle head 4 in an exemplary Width b1 of 300 mm a greatest depth t of 100 mm.

The bottom of the nozzle head 4 is in a known manner several, four in the illustrated embodiment Bristle sections 16 to limit the suction space provided, the bristles of a free vertical extension h1 of 10 mm, for example (see FIG. 6). The height h2 of the nozzle head 4 including the bristle sections 16 corresponds in the illustrated embodiment about three times the free vertical extent h1 of the bristle sections 16.

The one that is supported over the bridge 13 on the nozzle head 4 Nozzle body 5 points in the area of its bridge 13 a height h3, which is about two-thirds of the Height h2 of the nozzle head 4 corresponds.

As can be seen from the illustrations, the joint is 12 between nozzle head 4 and nozzle body 5 in the area the greatest depth of the nozzle head 4, wherein the width b2 of the nozzle body 5 or its bridge 13 in the area of the nozzle head 4 or the joint 12, for example corresponds to a fifth of the width b1 of the nozzle head 4. The in the direction of the rollers 10th has widening nozzle body 5 in the area of Rollers 10 have a width b3, which is about a third corresponds to the width b1 of the nozzle head 4. Furthermore this nozzle body width b3 corresponds approximately to that greatest depth t of the nozzle head 4, so accordingly also approx. 100 mm.

The nozzle head 4 according to that in the representations 1 to 8 The first embodiment shown is in four preferred pivot positions rested. On the one hand in the Fig. 4 shown normal position (0 ° position) Surface treatment. On the other hand in a 180 ° pivoted position, in which the in the floor plan Edge section 15 in the form of a circular section in the direction of travel is in front. The 90 ° and the 270 ° positions locked, in which the nozzle head 4 with its narrow depth t transverse to the direction of travel has.

This locking is realized by the underside of the nozzle head 4 two in the direction of the vertical Joint axis z acting, supported by compression springs 17 Locking elements 18 on one, four at 90 ° angular intervals interlocking recesses 19 having locking plate 20 act. The latter is non-rotatably connected to the nozzle body 5.

The locking plate 20 also has an elliptical floor plan on, according to which after swiveling the Nozzle head 4 spring-supported in an intermediate position a next home or rest position is found.

As a result of this configuration, the Allows nozzle head 4 for sucking around an object 30, which the latter is a swiveling of the nozzle head 4 causes about the pivot axis z. 5 is one such position of the nozzle head 4 pivoted through 90 ° shown, this position also secured is. Here you can also see that through the opposite the normal width b1 of the nozzle head 4 is smaller Depth t also good suction in niches at the same time high suction depth is reached. This will continue due to the narrow, longitudinal shape of the Nozzle body 5 favors.

6 to 8 are also three pivot positions of the connecting piece 6 shown. That about this serving first swivel joint 9 has a non-detent 6 preferred position, which locking device not by the weight of the nozzle 2, but can only be overridden by the user. In in this preferred locked position is the nozzle 2, For example, to record larger, otherwise only before Nozzle 2 pushed dirt particles around the pivot axis or roller axle x can be raised (see dash-dot line Representation in Fig. 6).

By deliberately overflowing these non-detent The preferred position is the connecting piece 6 also further can be pivoted downwards about the swivel axis x around the Push vacuum cleaner 1 as a whole flat can.

Furthermore, one is about the vertical alignment the connecting piece 6 going beyond, more preferred locked parking position according to FIG. 8 is provided.

9 to 12 show further exemplary embodiments spring-assisted swivel catches of the nozzle body 4th

For example, according to FIG. 9, two can be provided via compression springs 17 thrust pieces acting in the direction of the hinge axis z 21 act on the elliptical contour of the locking plate 20, whereupon by the elliptical shape of the Locking plate 20 automatically after the loss of support of the nozzle head 4 on an object 30 the normal position 9 is taken. Can too 11 leaf springs 22, which shaped locking lugs 23 have provided. These locking lugs 23 dive into correspondingly shaped recesses 19 of the locking plate 20, which is elliptically shaped in plan a, contrary to the illustrated embodiment with two, the normal position and the 180 ° position rest locking recesses 19 and more Locking recesses 19 for locking, for example the 90 ° and 270 ° position can be provided.

According to FIG. 11, tension springs 24, which are at one end on the locking plate 20 and at the other end on the underside of the nozzle head 4 are connected to obtain one automatic reset of the nozzle head 4 in the Serve normal position.

In Fig. 12 a solution is shown in which spring-elastic arms 25, which underside of the nozzle head 4 are connected with their free ends, which Form locking lugs 23, act on locking plate 20.

Alternatively, as shown in FIG. 38, the free ends of the resilient arms 25 also on Axle bodies 60 bear mounted roller body 61 for latching interaction with recesses 19 of the Rasttellers 20. The arrangement of is also conceivable Sliding bodies.

Furthermore, as also shown schematically in FIG. 38, the nozzle head 4 can be fastened to the bridge 13 so that it can be tilted by two horizontally oriented tilting axes h ₁ and h ₂ offset from one another by 90 °. The nozzle head 4 can therefore adapt to the unevenness of the floor via the two cardanically arranged axes h ₁ and h ₂ , which leads to an improved cleaning result.

The illustrated and described embodiments with regard to securing the rest or resetting the Nozzle head 4 are preferably in a hidden position arranged within the nozzle head 4.

13 to 15 show in a further embodiment a nozzle 2 according to the invention, in which the Suction channel 7 with an approximately semicircular in cross section Suction channel end section 35 in the area of Suction mouth 36 of the nozzle head 4 protrudes. The suction mouth 36 extends symmetrically from the suction channel mouth 37 in both corner areas 38 and 39 of the nozzle head 4, the suction channel mouth 37 on the front by a along the front wall of the Nozzle head 4 extending bristle strip 40 and rearward is limited by the nozzle head housing 41.

The suction channel 7 ends in the area of the suction channel end section 35 in the nozzle head 4 such that the suction mouth 36 flows symmetrically from the intake air 1 becomes.

In the pivot position according to FIG. 15, for example Sucking out niches or the like serves the after Suction channel end section 35 protruding below as a barrier for the volume flow from the swung back Area, d. H. the corner region 39 of the nozzle head 4, whereby the suction air flow 1 with respect to the first corner area 38 reinforced and according to the suction air flow 1 reduced with respect to the second corner region 39 is. As a result of this configuration, is in the direction of travel r swiveled nozzle head 4 the largest part the suction air flow 1 for effective suction in this used front area.

The one in the swivel position outside the suction mouth 36 lying open area of the suction channel mouth 37 through a section 41 ′ of the nozzle head housing 41 covered, with the axis of rotation z of the nozzle head continuing 4 with the suction channel axis in the area of the suction channel end section 35 coincides.

The relationship between closed and open Suction mouth area is by the distance of the turning center, d. H. the z axis, from the front edge of the suction mouth (bristle strip 40) adjustable. Thus, each can part of the suction mouth 36 swiveled back, for example 50% be isolated from the volume flow.

16, however, an embodiment is shown where one hundred percent foreclosure is achieved is, further alternatively the outside of the suction mouth 36 open area of the suction channel end section 35 from an appropriately shaped nozzle head wall 42 is covered.

Another alternative for increasing the suction air flow 1 in a swiveled corner area is in 17 and 18. Here is the Suction channel end section 35 essentially from one closed, semicircular area 43 and two, through a right angle to the front edge of the nozzle head, d. H. perpendicular to the bristle strip 40, extending Partitions 44 penetrate areas 45 which quarter-circular open areas 45 in the suction mouth 36 flow out. In the normal working position of the 17 extends a base plate 46 of the nozzle head 4 over the closed Area 43 of the suction channel end section 35.

The open areas 45 of the suction channel end section 35 allow a symmetrical flow through the suction mouth 36 to, the latter through the partition 44 in two is divided into equal sections.

In the deflected state according to FIG. 18, the Access to the swiveled back corner area 39 of the suction mouth 36 covered by the closed area 43. The correspondingly shaped base plate 46 of the nozzle head 4 now covers the quarter circle on the left in the illustration open area 45 so that the total suction air flow 1 through the swiveled corner area 38 streams.

In particular, about the pivotability of the nozzle head 4 easier when vacuuming carpets, an alternative embodiment according to FIG. 19 to 21 are provided, in which means are provided are dependent on influencing the suction air flow from a pivoting position of the nozzle head 4.

When the nozzle head 4 is pivoted out of the normal position (0 ° position) an auxiliary air path is opened, which causes the frictional force to pivot the nozzle head 4 is lowered. With a swivel angle of 0 ° d. H. Normal operating position - no secondary air flows too, so full suction power is available here stands.

According to the illustrated embodiment, the Nozzle head 4 in the joint area into the suction channel end section 35 of the nozzle body 5 projecting neck 47, which with one or two radially aligned holes 48 is provided. In the corresponding with this neck 47 Section of the suction channel end section 35 this is arranged with the bore 48 on both sides Elongated holes 49 provided.

20 are the Bores 48 of the nozzle head 4 through the closed Wall areas of the suction channel end section 35 closed. When the nozzle head is pivoted 4 however, the holes 48 overlap with the Elongated holes 49, whereby secondary airways are opened.

An alternative spring principle to reset of the nozzle head 4 in the normal position or to the latch-like Fixing the zero position of the nozzle head 4 is in the, illustrating several embodiments 22 to 37 are shown. Regardless of the particular Training of these further embodiments is one Spring 51 provided in the form of an elongated element, which extends transversely to the suction channel 7 extends in the nozzle head 4. The spring 51 can do this made of spring steel, fiberglass or corresponding plastic consist. As shown, however, a leaf spring having a curved cross section used. This is made from a convex Leaf spring steel, with which the hysteresis behavior around Starting position of the spring 51, d. H. the zero position or basic position of the nozzle head 4 to a minimum is reduced.

In the exemplary embodiment according to FIGS. 22 to 24 a spring 51 shaped in this way extends in a straight line, parallel to the front edge 14 of the nozzle head 4 and passes through the suction channel 7.

For this purpose, the suction channel wall 52 is diametrical with two opposite, radially aligned grooves 53 provided which in the basic position of the nozzle head 4th 22 aligned parallel to the end edge 14 are. In the area of these grooves 53 it asserts itself on both sides of the suction channel 7 extending uniformly Spring 51, wall 52 and suction channel 7.

In the area of the two free ends 54 are in the nozzle head 4 abutments 55 shaped in the form of guide pins, where specifically on both sides of the suction channel 7 each a pair of abutments 55 are arranged. The Distance between two abutments 55 of a pair here slightly larger than that measured in the same direction Thickness of the spring 51, so the latter in this regard is freely movable in the area of its free ends 54.

In the course of the deflection of the nozzle head 4 from the basic position 22, the spring 51, in particular the leaf spring, from its elongated resting position, due to the lateral support of the free ends 54 on the abutments 55, deflected, with which a driving torque is achieved (see Fig. 24).

By designing the spring 51 as a leaf spring with a curved cross-section is not just the hysteresis behavior improved by the basic position. moreover the nozzle head always turns to an exact one Zero position - basic position - back. This also means a, zero position similar to a detent reachable.

Another embodiment with a in the basic position straight spring 51 is shown in FIGS. 25 and 26. Contrary to the previously described embodiment however, does not penetrate the spring 51 the suction channel 7, but penetrates the wall 52 of the Suction channel 7 secant in the area of a corresponding aligned groove 53. Alternatively, the Section 52 penetrating section of the spring 51 also in the Injection molded during the manufacture of the suction channel wall 52 his.

In this embodiment, too Deflect the nozzle head 4 according to FIG. 26, a driving torque building turning the protruding on both sides beyond the suction channel wall 52 Spring sections on (see Fig. 26).

A development is based on this embodiment 27 and 28, an embodiment with two arranged on both sides of the suction channel axis, both parallel to one another and also parallel to the end face 14 extending springs 51. The symmetrical to each other aligned springs 51 each penetrate secant the suction channel wall 52. FIG. 28 shows the deflected one Position of the nozzle head 4, in which the springs 51 outside the integration in the suction duct wall 52 restoring torque are deflected.

There is also the possibility of one, as in FIG. 29 and 30 shown, partial looping of the suction channel 7 by the spring 51. So the spring 51 is over a part of the wall 52 of the suction channel 7 in the circumferential direction adapted to this and lies in a corresponding trained groove 53 a. The wrap is here, for example, 180 °.

As shown, the spring 51 protrudes at both ends of the loop with parallel to the front edge 14 of the nozzle head 4 extending free ends 54, which free Ends 54 here also between two abutments 55 are led.

In this embodiment too, an arrangement of two springs 51 can be provided, which are symmetrical are aligned with each other (see Fig. 31). The Extend ends 54 of the springs 51 projecting on both sides here parallel to one another and in a side-by-side arrangement lying also parallel to the front edge 14.

It is also conceivable to split the spring 51 in two and to be arranged outside on the wall 52 of the suction channel 7 or to lead.

A configuration in this regard is shown in FIG. 32. Here are parallel on both sides of the suction channel 7 extending in the opposite direction to the end edge 14 Springs 51 are provided, their, the suction channel 7 facing Ends in secant-like grooves 53 or accordingly aligned holes.

Alternatively, an arrangement can also be used in this regard two springs 51 with diametrically opposite one another, ends associated with wall 52 as shown in FIG. 33 be provided. Here are those assigned to wall 52 Ends in mounts formed on the wall 52 56 bound. These springs 51 also run in the relaxed basic position parallel to the front edge 14 the nozzle head 4.

There is also the possibility of prestressing the spring 51 to be arranged in the nozzle head 4. This is because of it realizes that - as shown in Fig. 34 - the receiving the free end 54 of the spring 51 Clearance between two abutments 55 of a pair a closer distance to the distant one Front edge 14 than that, the wall 52 secant cutting groove 53 so that the free ends 54 the spring 51 slightly inclined with the support of the Abutments 55 run.

Here, too, two can be aligned symmetrically to each other Springs 51 are provided as shown in FIG. 35 his.

Finally, Fig. 36 shows an embodiment in which the abutment 55 are formed by marginal edges a recess formed in the plane of the spring 51 57 of the nozzle head 4. The edges of this Recess 57 form an outer boundary for the Spring 51 in the deflected state, the edge of the recess symmetrical to one perpendicular to the face 14 extending axis of symmetry arranged the Cover the area of the suction duct wall 52. Through this The outer limit of the recess 57 is also the characteristic curve the spring 51 can be influenced.

The presented embodiments of the invention are not only for passive carpet nozzles, but also for Carpet nozzles with rotating brush rollers can be used. For this purpose, or in the movable part (nozzle head 4) the fixed part (nozzle body 5) of the nozzle 2 Integrated electric motor that works directly via a gearbox or via a power transmission using a toothed belt or integrated in the nozzle head 4 drives a brush roller. A drive via a turbine is also conceivable, which is driven by the air flow. The power supply is carried out by means of lines running over slip rings or other suitable elements in the movable Part (nozzle head 4) are inserted.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Nozzle head 4 pivotable in a horizontal plane is.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Nozzle head 4 partially in the pivoted state extends below the nozzle body 5.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Width b1 of the nozzle head 4 more than twice that maximum depth t of the nozzle head 4.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Depth t of the nozzle head 4 across the width b1 of the nozzle head 4 is different.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Nozzle head 4 relative to the nozzle body 5 by 360 ° and is more pivotable.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle, in which one Spring 51 is provided in the form of an elongated element which is transverse to the suction channel 7 extends in the nozzle head 4.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Spring 51 passes through the suction channel 7.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Spring 51 is connected to the suction channel 7.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Spring 51 the wall 52 of the suction channel 7 secant interspersed.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Spring 51 over part of the wall 52 of the suction channel 7 is adapted to this in the circumferential direction.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle, in which outside abutment 55 opposite suction channel 7 are formed for the spring 51 in the nozzle head 4.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Spring 51 is freely movable with respect to an abutment 55 is.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle, in which two Springs 51 are provided.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Springs 51 are aligned in the basic position.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Springs 51 run in the opposite position in the basic position.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Springs 51 are aligned symmetrically to each other.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Spring 51 is designed as a leaf spring.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Leaf spring has a curved cross section.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Nozzle head 4 on the bottom one or more bristle sections 16 has.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the greatest depth t of the nozzle head 4 three to six times corresponds to the height h2 of the nozzle head 4.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Nozzle body 5 on the one hand on the nozzle head 4 and other, on the nozzle body 5 attached rollers 10 or sliding surfaces is supported.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Nozzle body 5 in the area of the nozzle head 4 a width b2, which is a fraction of the width b1 of the Nozzle head 4 corresponds.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Width b2 of the nozzle body 5 in the area of the nozzle head 4 one third to one fifth of the width b1 of the Nozzle head 4 corresponds.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Width b3 of the nozzle body 5 in the area of the rollers 10 or the sliding surfaces about half the width b1 of the nozzle head 4 corresponds.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Width b3 of the nozzle body 5 in the area of the rollers 10 or the sliding surfaces about the greatest depth t of Nozzle head 4 corresponds.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Bridge 13 leaves a bridge clearance 29 on the bottom side and that the length 1 of the bridge clearance 29 is more than corresponds to half the width b1 of the nozzle head 4.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Connection piece 6 in a first swivel joint 9 around an axis x transverse to the direction of travel r of the nozzle 2 is pivotable.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Connection piece 6 further a second swivel joint 11 has, with a deviating from the central axis a of the connecting piece 6 extending pivot axis y.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the first swivel joint 9 a locked secure preferred position has, the detent not by the Weight force of the nozzle 2 can be canceled.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Suction air flow 1 lower in a swivel position is as in a non-pivoted position.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle, in which in a Pivotal position an auxiliary air path is open.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle, in which in a Swivel position of the suction air flow 1 with respect to a first corner region 38 of the nozzle head 4 is reinforced.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle, in which in a Swivel position of the suction air flow 1 with respect to a second corner region 39 of the nozzle head 4 is reduced.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Opening of the suction channel 7 to the second corner area 39 is reduced depending on the swivel angle, while opening with respect to the first corner area 38 is unaffected.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle in which the Closure of the suction channel 7 in relation to a corner area 39 by reducing the cross section between a front wall of the front edge corresponding to the Nozzle head 4 and a vertical suction duct wall section he follows.

The object of the invention, both alone and in Combination with one of the features described above Significance is also a nozzle, in which in the Nozzle head 4 has a partition which extends at right angles 44 is provided and that the closure of the Suction channel 7 by reducing the distance between a vertical suction duct wall and the partition 44 takes place.

The invention, which is important both alone and in combination with one of the features described above, also relates to a nozzle in which the nozzle head 4 is movable about at least one tilt axis h ₁ , h ₂ oriented transversely to the vertical articulation axis z.

The subject of the invention, which is important both alone and in combination with one of the features described above, is also a nozzle in which the nozzle head 4 can be moved by two horizontally oriented tilting axes h ₁ , h ₂ arranged offset by 90 ° to one another.

All of the features disclosed are (in themselves) essential to the invention. In the disclosure of the registration is hereby also the disclosure content of the associated / attached Priority documents (copy of pre-registration) fully included, also for the purpose of characteristics of these documents in claims of the present application to include.

Claims (9)

Nozzle (2) for a vacuum cleaner (1), in particular a hard floor nozzle, with a nozzle head (4) sitting on the floor (3) and a nozzle body (5) connecting the nozzle head (4) with a vacuum cleaner (1), with the nozzle body (5) a connecting piece (6) is formed and the nozzle (2) can be moved as a whole with rollers (10) or over sliding surfaces, and a suction channel (7) is provided which extends from the connecting piece (6) through the nozzle body ( 5) extending into the nozzle head (4), characterized in that the nozzle head (4) is pivotable relative to the nozzle body (5). Nozzle according to claim 1 or in particular according thereto, characterized in that the pivotability is formed via a joint (12) with a vertical joint axis (z). Nozzle according to one or more of the preceding claims or in particular according thereto, characterized in that the nozzle head (4) has a greater width (b1) than depth (t) in the normal position. Nozzle according to one or more of the preceding claims or in particular according thereto, characterized in that the nozzle head (4) has a circular segment-like plan. Nozzle according to one or more of the preceding claims or in particular according thereto, characterized in that the joint (12) is formed in the region of the greatest depth (t) of the nozzle head (4). Nozzle according to one or more of the preceding claims or in particular according thereto, characterized in that one or more preferred pivoting positions of the nozzle head (4) are latched. Nozzle according to one or more of the preceding claims or in particular according thereto, characterized in that the nozzle head (4) swings back spring-assisted into a basic or detent position after being pivoted out into an intermediate position. Nozzle according to one or more of the preceding claims or in particular according thereto, characterized in that a height (h2) of the nozzle head (4), based on the free vertical extension (h1) of a bristle of a bristle section (16), including the bristles of the two to three Corresponds to five times the free vertical length (h1) of the bristle. Nozzle according to one or more of the preceding claims or in particular according thereto, characterized in that means are provided for influencing a suction air flow (1) as a function of a pivoting position of the nozzle head (4).

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