EP2987425A2 - Vacuum cleaner nozzle for mounting on a broom head and cleaning apparatus comprising such a vacuum cleaner nozzle - Google Patents

Abstract

The invention relates to a vacuum cleaner nozzle 10 with an elongated Besenkopfaufnahmeraum R for placing the vacuum cleaner nozzle 10 on a broom head 101 of the type having a bolt 102 and formed thereon bristles 103 is formed. The vacuum cleaner nozzle 10 has a nozzle funnel 20 which extends from a tubular vacuum cleaner connection 21 located above the broom-receiving space R with a tube axis A to a nozzle slot 22 which extends in the region of an upper edge RK of the broom-receiving chamber R. In this case, a fastening means 23 for fixing the vacuum cleaner nozzle 10 is arranged on a broom 100 on the nozzle funnel 20 on a first side S1 of the nozzle slot 22, which is arranged on the side of the broom head receiving space R. Furthermore, the vacuum cleaner nozzle 10 on the first side S1 of the nozzle slot 22 on a bearing means 24 which adjoins the Besenkopfaufnahmeraum R and extends over the length L of the nozzle slot 22. On one of the first side S1 opposite second side S2 of the nozzle slot 22, a lip 25 is arranged, which extends beyond the nozzle slot 22 and adjacent to the Besenkopfaufnahmeraum R.

Description

The invention relates to a vacuum cleaner nozzle for placement on a broom head according to claim 1 and a cleaning device with such a vacuum cleaner nozzle according to claim 7.

For cleaning, a broom is used in many situations. Such a broom consists of a broom style and a broom head attached to it. The broom head is composed of a bar, e.g. a cross-wood, and bristles fixed to the bolt.

The problem with sweeping with a broom is the stirring up of fine dirt. Due to the mechanical acceleration due to the broom feed speed, small particles are thrown into the air. Springing bristles accelerate the particles additionally. In addition, there is strong air turbulence on the push and pull side of the broom, which carry away the particles far from the bristles.

This dust uplift leads to a poor cleaning result with partly additional dirty surfaces. The fluidized particles are also problematic for the health of persons. In some cases, the particles are so hazardous that sweeping with brooms is prohibited in certain areas, such as on construction sites. Pneumoconiosis, cancer and eye inflammation are the most commonly caused diseases. Especially in hospitals, however, quite different bacteria, viruses and fungi are whirled into the air.

On cleaning with a broom, despite the dangers often can hardly be dispensed with. On construction sites, it is possible to scoop up very coarse dirt. The remaining medium-fine dirt is not suitable to be sucked away. Therefore, despite the health hazards and any prohibitions will still swept with a broom.

The object of the invention is therefore to provide a cleaning device with which the problems of the prior art are eliminated, and an elimination of dirt with fine and / or mixed grain without Staubaufwirbelungen is possible, the handling simple, comfortable and the cost of the cleaning device should be low, so that the cleaning device is accepted and used in practice by the user.

Main features of the invention are given in claims 1 and 7. Embodiments are the subject of claims 2 to 6 and 8 to 13.

The invention relates to a vacuum cleaner nozzle with an elongated Besenkopfaufnahmeraum for placing the vacuum cleaner nozzle on a broom head of the type comprising a bolt and bristles fixed thereto. The vacuum cleaner nozzle has a nozzle funnel, which extends from a tubular vacuum cleaner connection located above the broom-receiving space with a tube axis to a nozzle slot which extends in the region of an upper edge of the broom-head receiving space. In this case, a fastening means for fixing the vacuum cleaner nozzle is arranged on a broom on the nozzle funnel on a first side of the nozzle slot, which is arranged on the side of the broom head receiving space. Furthermore, the vacuum cleaner nozzle on the first side of the nozzle slot on a bearing means adjacent to the Besenkopfaufnahmeraum and extending over the length of the Nozzle slot extends, in particular for forming a seal with a bolt of a broom head. On a first side opposite the second side of the nozzle slot, a lip is arranged, which extends beyond the nozzle slot and adjacent to the Besenkopfaufnahmeraum.

An advantage of the embodiment of the invention is that can be achieved with such a vacuum cleaner nozzle that whirled up by a broom particles are sucked directly and not even get into the surrounding airspace. Coarser dirt, however, remains on the ground and can be moved with the broom. The efficient avoidance of Schmutzaufwirbelungen is particularly a consequence of the fact that in the direction of thrust in front of the broom hardly any air resistance and thus less air turbulence arise. According to the invention, the air turbulences which arise flow essentially into the nozzle slot and are taken up by a connected vacuum cleaner. For this purpose, preferably a powerful industrial vacuum cleaner is used, which has a good air filter. In terms of sizing, the vacuum cleaner port should have a diameter that is less than the length of the nozzle slot and that is greater than a width of the nozzle slot.

Another advantage is the easy retrofitting of existing cleaning equipment with the vacuum cleaner nozzle. Brooms and vacuum cleaners are usually already available. The retrofit costs are correspondingly low. At the same time, the wear-prone broom head remains interchangeable. With a cleaning device with such a vacuum cleaner nozzle so a high level of comfort is achieved, whereby the condition for a high acceptance is given.

In order for the air extraction to succeed uniformly, a further embodiment of the invention provides that the lip of the vacuum cleaner nozzle extends over the entire length of the nozzle slot.

Particularly effective is a variant of the invention, in which the lip of the nozzle slot at an obtuse angle between 120 degrees, preferably 130 degrees and particularly preferably 140 degrees and 180 degrees to the tube axis extends beyond the nozzle slot. As a result, the typical Besenstielanstellung is taken into account relative to the bolt.

According to a special configuration, the fastening means has a support plate for laying on a bolt of a broom head, which delimits the broom head receiving space upwards, wherein the support plate (also) forms the stop means. Such a support plate is suitable for a stable fixing of the vacuum cleaner nozzle on the broom head or the bolt, which prevents slippage of the vacuum cleaner nozzle on the bolt especially in shock contact.

A simple installation of the vacuum cleaner nozzle succeeds if the fastening means has screw holes in the support plate. Consequently, the vacuum cleaner nozzle must only be placed on the bolt and screwed there, which is readily possible with the typical wooden bolt.

As the material for the vacuum cleaner nozzle preferably aluminum is used, for example, with about 2mm wall thickness. The lip may be made of a flexible material such as rubber, especially in the home. Shock damages are thus avoided. For the construction site, however, a stable lip is preferred, with larger dirt, e.g. Wood or stones can be pushed away without deformation of the lip. A deformation of the lip would namely lead to a change in the suction speed, which could also be sucked on the ground lying dirt.

For channeling the sucked air an optional embodiment is advantageous in which the vacuum cleaner nozzle has lateral end elements which are arranged at the ends of the nozzle slot and laterally delimit the broom head receiving space. If these finishing elements are connected to the lip, in particular over the corner, a high stability is achieved.

Furthermore, the invention relates to a cleaning device with a vacuum cleaner nozzle, as described above, which has a broom head with a bolt and bristles fixed thereto, and wherein the broom head is received in the broom head receiving space of the vacuum cleaner nozzle. Thus, the cleaning device is prepared so far that when sweeping with the broom head whirled up air can be sucked with the vacuum cleaner nozzle. In principle, there is also the option that the bar of the broom head is part of the vacuum cleaner nozzle. However, training with a separate broom head, preferably a commercial broom head is preferred for retrofitting and replacement of the broom head.

According to a further embodiment of the cleaning device, the broom head forms with the bristles a footprint, a thrust side and a pulling side, wherein the lip of the vacuum cleaner nozzle extends on the thrust side in front of the bristles and has a perpendicular distance to the footprint, wherein the perpendicular distance between 1, 0 cm and 8.0 cm, preferably between 2.5 cm and 7.0 cm, more preferably between 3.5 cm and 6.5 cm, and particularly preferably between 4 cm and 6 cm. It can be seen that the lip thus reduces the distance of the nozzle slot to the contact surface, so that the volume flow for sucking the fluidized particles is brought closer to the ground, but not so close that sucked on the ground dirt is sucked to a large extent. In addition, particles whirled up within the bristles are sucked in and do not escape unhindered into the headspace on another side of the bristles.

According to a variant of the invention, a broom style (directly) is connected to the bolt of the broom head and a vacuum cleaner hose connected to the vacuum cleaner port and fixed to the broom style, preferably with a clamp. Such an embodiment allows, for example, a use of a commercial broom with commercial style.

Another embodiment of the invention, however, provides that a suction pipe is connected to the vacuum cleaner connection and forms a broom style. Thus, the handling is a bit more comfortable, because the entire breastfeeding can be touched and the vacuum hose runs substantially behind the brush guide. Also, this is not a connected vacuum cleaner in the vicinity of the surface to be swept.

For ergonomic reasons, the broom style preferably forms an angle with the latch that is between 50 degrees and 75 degrees, preferably between 55 degrees and 72 degrees, and more preferably between 62 degrees to 68 degrees.

In addition, the tube axis and the brush style should be aligned in the same direction. As a result, either the tubular brush style can be inserted into the vacuum cleaner connection or a vacuum cleaner hose can be fixed to the brush style and led out of the sweeping area.

Furthermore, an embodiment variant provides that a funnel bell with a V-shaped cross-section is formed between the lip and the bristles, which is flow-connected to the nozzle slot. As a result, the funnel bell thus formed continues the nozzle funnel and channels the extracted air. At the same time, the lip is spaced from the bristles so that they can perform their sweeping function relatively unhindered, e.g. Dirt accumulates in front of the bristles. The air in front of the bristles is optimally sucked off, without sucking on the or on the bristles fitting dirt to a large extent.

To adjust the flow velocity, a valve may be provided. Such may be arranged in the vacuum cleaner nozzle, the vacuum cleaner tube or in the vacuum cleaner hose. In order not to taper the flow channel, the valve should be designed as an adjustable intake opening for outside air. Thus, the suction on the vacuum cleaner nozzle can be adapted to the material to be sucked and the performance of the vacuum cleaner.

Fig. 1

zeigt eine perspektivische Ansicht einer Staubsaugerdüse;

Fig. 2

zeigt eine perspektivische Explosionszeichnung einer Reinigungsvorrichtung mit der Staubsaugerdüse nach Fig. 1, einem Besen, und einem Staubsaugerschlauch;

Fig. 3

zeigt eine perspektivische Ansicht einer Staubsaugerdüse nach Fig. 1 von oben; und

Fig. 4

zeigt einen Schnitt durch eine Reinigungsvorrichtung mit der Staubsaugerdüse nach Fig. 1.

Further features, details and advantages of the invention will become apparent from the wording of the claims and from the following description of exemplary embodiments with reference to the drawings. Show it:

Fig. 1

shows a perspective view of a vacuum cleaner nozzle;

Fig. 2

shows an exploded perspective view of a cleaning device with the vacuum cleaner nozzle Fig. 1 , a broom, and a vacuum cleaner hose;

Fig. 3

shows a perspective view of a vacuum cleaner nozzle Fig. 1 from above; and

Fig. 4

shows a section through a cleaning device with the vacuum cleaner nozzle Fig. 1 ,

In the Fig. 1 . 2 . 3 and 4 each recognizes a vacuum cleaner 10 in different views and mounting conditions. The vacuum cleaner nozzle after the Fig. 1 . 2 . 3 and 4 has a nozzle funnel 20 extending from a tubular hose connection 21 with a tube axis A (reference numerals only in the Fig. 3 and 4 included) to a nozzle slot 22 extends. The hose connection 21 has a diameter D (reference numerals only in FIGS Fig. 3 and 4 contained), which is smaller than a length L (reference numerals only in Fig. 3 included) of the nozzle slot 22 and which is greater than a width B (reference numerals only in the Fig. 3 and 4 ) of the nozzle slot 22. Preferably, the diameter D is 55 mm. In addition, an inner diameter X1 of 50 mm is preferred. This is the hose connection 21 with commercially available industrial vacuum cleaners connectable. Optionally, a transition adapter or only a vacuum cleaner tube with the hose connection 21 are connected.

On the nozzle funnel 20 is on a first side S1 (reference numerals only in the Fig. 1 . 3 and 4 contained) of the nozzle slot 22, a fastening means 23 (reference numerals only in the Fig. 1 . 3 and 4 included) laying down on a broom. In addition, here is a stop means 24 (reference numerals only in the Fig. 1 . 3 and 4 included) for abutment on a broom head of a broom. In particular, the fastening means 23 has a support plate 26 for placement on a bolt of a broom head, wherein the support plate 26 also forms the stop means 24. The fastening means 23 also has screw holes 27 in the support plate 26. By means of fastening screws 30, the vacuum cleaner nozzle 10 with the support plate 26 on a bolt 102 can be screwed (see the exploded view in Fig. 2 ). The fastening screws 30 can be designed to be self-tapping for this purpose.

On one of the first side S1 opposite second side S2 (reference numerals only in the Fig. 1 . 3 and 4 contained) of the nozzle slot 22, a lip 25 is arranged, which extends beyond the nozzle slot 22 addition. In the Fig. 1 . 2 and 3 It can be seen that the lip 25 of the vacuum cleaner nozzle 10 extends over the entire length L of the nozzle slot 22.

At the ends E1 (see. Fig. 1 and 3 ) and E2 (cf. Fig. 1 . 3 and 4 ) of the nozzle slot 22 lateral end elements 28, 29 are arranged, which has a Besenkopfaufnahmeraum R (see. Fig. 4 ) laterally limit. The lip 25 and the end elements 28, 29 are each formed of plates, preferably of aluminum plates.

In the Fig. 2 and 4 Detects a cleaning device 1 with the vacuum cleaner nozzle 10 and a broom 100. This broom 100 has a broom style 104 and a Besenkopf 101 fixed thereto. The broom head 101 comprises a bolt 102 with bristles 103 fixed thereto Fig. 4 is additionally characterized in that the broom head 101 with the bristles 103 a footprint AF, a thrust side S3 and a pulling side S4 is formed.

As in Fig. 4 is indicated, the vacuum cleaner nozzle 10 forms an elongated Besenkopfaufnahmeraum R for placing the vacuum cleaner nozzle 10 on a Besenkopf 101, in particular for a broom head 101 with a latch / cross-wood 102 and thereon fixed bristles 103. The broom head 101 is in Fig. 4 received in the broom head receiving space R of the vacuum cleaner nozzle 10.

In this case, the nozzle funnel 20 extends from the tubular vacuum cleaner connection 21 located above the broom-receiving space R to the nozzle slot 22, which extends in the region of an upper edge RK of the broom-receiving space R. The nozzle slot 22 extends in particular on and parallel to the latch 102. It can be seen that the attachment means 23 for fixing the vacuum cleaner nozzle 10 is arranged on the broom head 101 on the side of the broom head receiving space R. Well recognizable in Fig. 4 Also, how the investment means 24 rests on the top of the bolt 102. The investment means 24 thus limits the Besenkopfaufnahmeraum R upper side. It also extends over the entire length L of the nozzle slot 22, whereby the attachment means 24 forms a seal with the latch 102 of the broom head 101.

Further, in Fig. 4 clearly that the lip 25 extends on the second side S2 of the nozzle slot 22 beyond the nozzle slot 22 and up next to the Besenkopfaufnahmeraum R, that is, until the thrust side S3 of the bristles 103. The lip 25 forms an obtuse angle W1 between 120th Degrees and 180 degrees, preferably between 130 degrees and 180 degrees and more preferably between 140 degrees and 180 degrees to the tube axis A. In the present case, the angle W1 is approximately 160 degrees. The lip 25 has a perpendicular distance a to the footprint AF. The perpendicular distance a is between 1.0 cm and 8.0 cm, preferably between 2.5 cm and 7.0 cm, more preferably between 3.5 cm and 6.5 cm and particularly preferably between 4 cm and 6 cm. As can be seen, is formed in this way between the lip 25 and the bristles 103, a funnel bell 110 having a V-shaped cross section, which is fluidly connected with its narrow end with the nozzle slot 22. Down the funnel bell 110 is open. Air also enters the funnel bell 110 through the bristles 103.

In the particular embodiment of the lip 25 shown, this has a horizontal bend, wherein a short lip piece on the side of the nozzle slot 22 initially approximately vertically downwards, before the longer lip piece has obliquely forward. The aspect ratio between the short and long lip pieces is preferably between 2: 1 and 6: 1, more preferably between 2.8: 1 and 5: 1, and most preferably between 3: 1 and 4: 1. Thus, the above the nozzle slot 22 obliquely Air flow initially deflected downwards, that is along the bristles 103. This improves the flow pattern and thus the dust extraction in front of the thrust side S3 of the bristles 103rd

In practical implementation of the embodiment, the total height X2 is approximately between 15 cm and 19 cm. To maintain the vertical distance a to the footprint AF, the perpendicular distance X3 between the abutment means 24 and the lower edge of the lip 25 should be between 3 cm and 7 cm, preferably between 4 cm and 6 cm. The total depth X4 of the vacuum cleaner nozzle 10 would be between about 13 cm and 17 cm.

Furthermore, in Fig. 4 shown that the brush style 104 forms an angle W2 with the latch 102, which is between 50 degrees and 75 degrees, preferably between 55 degrees and 72 degrees, and more preferably between 62 degrees to 68 degrees. In the present case, it is 65 degrees.

According to Fig. 2 a vacuum cleaner hose 106 is provided, which is connectable to the vacuum cleaner port 21 and, for example, with a clamp on the broom style 104 can be fixed. The tube axis A and the brush style 104 are aligned in the same direction and are spaced parallel to each other.

The invention is not limited to one of the above-described embodiments, but can be modified in many ways.

For example, a suction pipe may be connected to the vacuum cleaner port 21 and form the broom style 104. In the embodiment of the Fig. 2 and 4 broomstick 104 would then be omitted.

To sweep into corners, the vacuum cleaner nozzle 10 should project beyond the broom head 101 only with minimum oversize. This minimum excess can then be bridged by the angle of attack of the bristles 103.

To avoid damage and injury, all exposed corners and edges of the vacuum cleaner nozzle 10 should be rounded.

All features and advantages of the claims, the description, and the drawings, including structural details, physical arrangements, and method steps, may be used per se and in a variety of combinations be essential to the invention. In particular, technical features of the embodiments, which are not in constructive dependence on other features, isolated form the invention itself. <B> LIST OF REFERENCES </ b> 1 cleaning device a perpendicular distance 10 vacuum cleaner nozzle A pipe axis AF footprint 20 jet funnel B Width (nozzle slot) 21 vacuum cleaner connection D diameter 22 nozzle slot (Vacuum cleaner connector) 23 fastener E1 first end (nozzle slot) 24 investment funds E2 second end (nozzle slot) 25 lip L Length (nozzle slot) 26 Support plate R Broom head accommodating space 27 screw hole RK upper edge 28 first lateral end element S1 first side (nozzle slot) S2 second side (nozzle slot) 29 second lateral end element S3 Pushing side (bristles) S4 Pulling side (bristles) 30 fixing screw W1 Angle (lip / tube axis)) W2 Angle (broom style / bar) 100 broom X1-X4 different dimensions 101 broom head 102 bars 103 bristles 104 broomstick 106 vacuum cleaner hose 110 funnel bell

Claims (13)

A vacuum cleaner nozzle (10) having an elongate broom receiving space (R) for mounting the vacuum cleaner nozzle (10) on a broom head (101) of the type comprising a latch (102) and bristles (103) fixed thereto; Wherein the vacuum cleaner nozzle (10) has a nozzle funnel (20) extending from a above the Besenkopfaufnahmeraums (R) lying tubular vacuum cleaner port (21) with a tube axis (A) to a nozzle slot (22) in the region of an upper edge (RK) of the broom head receiving space (R), Wherein on the nozzle funnel (20) on a first side (S1) of the nozzle slot (22), which is arranged on the side of the broom head receiving space (R), a fastening means (23) for fixing the vacuum cleaner nozzle (10) on a broom (100 ) is arranged Wherein the vacuum cleaner nozzle (10) on the first side (S1) of the nozzle slot (22) has an abutment means (24) which adjoins the Besenkopfaufnahmeraum (R) and extends over the length (L) of the nozzle slot (22), and Wherein on one of the first side (S1) opposite the second side (S2) of the nozzle slot (22) a lip (25) is arranged, which extends beyond the nozzle slot (22) and adjacent to the Besenkopfaufnahmeraum (R). Vacuum cleaner nozzle (10) according to claim 1, characterized in that the lip (25) of the vacuum cleaner nozzle (10) extends over the entire length (L) of the nozzle slot (22). Vacuum cleaner nozzle (10) according to one of the preceding claims, characterized in that the lip (25) from the nozzle slot (22) at an obtuse angle (W1) between 120 degrees and 180 degrees to the tube axis (A) beyond the nozzle slot (22) addition extends. Vacuum cleaner nozzle (10) according to any one of the preceding claims, characterized in that the fastening means (23) comprises a support plate (26) for laying on a bolt (102) of a broom head (101) which delimits the Besenkopfaufnahmeraums (R) upwards, the support plate (26) forms the stop means (24). Vacuum cleaner nozzle (10) according to one of the preceding claims, characterized in that the fastening means (23) screw holes (27) in the support plate (26). Vacuum cleaner nozzle (10) according to one of the preceding claims, characterized in that the vacuum cleaner nozzle (10) has lateral end elements (28, 29) which are arranged at the ends (E1, E2) of the nozzle slot (22) and the broom head receiving space (R). limit laterally. Cleaning device (1) with a vacuum cleaner nozzle (10) according to one of the preceding claims, characterized in that it comprises a broom head (101) with a latch (102) and bristles (103) fixed thereto, the broom head (101) in the broom head receiving space (R) of the vacuum cleaner nozzle (10) is received. Cleaning device (1) according to claim 7, characterized in that the broom head (101) with the bristles (103) forms a footprint (AF), a thrust side (S3) and a pull side (S4), wherein the lip (25) of the Vacuum cleaner nozzle (10) on the thrust side (S3) in front of the bristles (103) and has a perpendicular distance (a) to the footprint (AF), wherein the perpendicular distance (a) between 1.0 cm and 8.0 cm, preferably between 2.5 cm and 7.0 cm, more preferably between 3.5 cm and 6.5 cm, and particularly preferably between 4 cm and 6 cm. Cleaning device (1) according to one of claims 7 or 8, characterized in that a broom style (104) with the latch (102) of the broom head (101) is connected and a vacuum cleaner hose (106) to the vacuum cleaner port (21) and connected to the Broom style (104) is set. Cleaning device (1) according to one of claims 7 or 8, characterized in that a suction pipe with the vacuum cleaner port (21) is connected and a broom style (104) is formed. Cleaning device (1) according to one of claims 9 or 10, characterized in that the broom style (104) forms an angle (W2) with the bolt (102) which is between 50 degrees and 75 degrees, preferably between 55 degrees and 72 degrees and more preferably between 62 degrees to 68 degrees. Cleaning device (1) according to one of claims 9 to 11, characterized in that the tube axis (A) and the brush style (104) are aligned in the same direction. Cleaning device (1) according to one of claims 7 to 11, characterized in that between the lip (25) and the bristles (103) a funnel bell (110) is formed with a V-shaped cross-section, which is fluidly connected to the nozzle slot (22) ,

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