CZ301681B6 - Method for exhausting dust by using vacuum cleaner and dust collection compartment for making the method - Google Patents

Abstract

The present invention relates to a method for vacuum cleaning using a hand vacuum cleaner (1). The dust is first collected in a dust collection compartment (9) or a dust filter bag (3), and then disposed off. An adsorbent (7), for example activated carbon, is also provided for adsorbing odors. The invention also relates to a dust filter bag (3) or dust collection compartment (9) for a vacuum cleaner (1). The aim of the invention is to improve a method and a dust filter bag (3) or a dust collection compartment (9) of this type in terms of advantageously preventing or reducing the initial odor surge. To this end, the adsorbent (7), such as activated charcoal, zeolites or porous polymers, is introduced directly into the dust collection compartment (9) and an adsorbent (7) is provided in the dust filter bag (3) or the dust collection compartment (9) in a loose form i.e. as bits, balls or fibers.

Description

A method of vacuuming a dust vacuum cleaner and a dust collector for carrying out the method

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of vacuuming a dust vacuum cleaner in which dust is first sucked into the dust collector or dust filter bag and subsequently removed, wherein the composition is added or introduced immediately to the dust collector. for dust. The invention further relates to a dust collector or a dust filter bag for a vacuum cleaner, wherein a free-form composition is present in the dust collector or outside the dust collector without suction dust.

BACKGROUND OF THE INVENTION

Such methods are known. Adsorption filters are used for odor adsorption, the main components of which are the adsorbent for binding odors and a suitable carrier material for ad sorbent fixing. Highly porous materials are used as the adsorbent, in many cases, for example, activated carbon. However, other materials such as zeolites or porous organic polymers are also used. The adsorbent is usually in the form of particles that can have different shapes and dimensions. These particles are distributed in the filter by various support structures such as foam, fabric, fleece, honeycombs and the like. Such a odor filter is arranged in the vacuum cleaner so that exhaust air flows through the vacuum cleaner during operation of the vacuum cleaner. Such a odor filter is generally provided on the suction side in front of the fan, so that the adsorption equilibrium in the odor filter is not adversely affected by the elevated temperature downstream of the motor-fan unit. In addition, it is known that porous, fragrance-saturated media are used in air cleaners and vacuum cleaners to cover an unpleasant odor. In this respect, sticks and granulates are known which are inserted into the dust filter bag or otherwise into the air flow path. The separation of odors in the vacuum cleaner has specific requirements. Unlike, for example, an air purifier, the dust extractor is retained and collected in a dust bag or other special dust collection container. The trapped dust remains in this dust filter bag or dust collection container for a period of time. During this time, most undesirable odorous substances are produced by microbiological degradation of the various components of the dust. In the case of a vacuum cleaner, a significant drawback of these known solutions is that the odor separation takes place essentially during the operation of the vacuum cleaner, where the odorous substances come into the odor filter with the air flowing. This passage of air through the odor filter causes on the one hand an undesirable high pressure loss. On the other hand, when the vacuum cleaner is turned on, there is a sudden high concentration of odorous substances in the exhaust air, requiring a high adsorption rate in the odor filter.

It is known from US-A 5 461 751 that pieces of cedar wood are inserted into the dust filter bag to freshen the air and control the pests. Cedar wood vapors overlap odors and act against pests. Similarly, FR-A 2 417 287 discloses that bactericides, fungicides or deodorants are introduced into the dust filter bag. WO 94/21305 A deals with a liquid air freshener composition as such and proposes to do so a combination of sand and fragrance. These documents therefore deal with materials which in themselves release certain substances. These are effective even when the vacuum cleaner is stationary. When the vacuum cleaner is turned on, the odor accumulated in the dust filter bag is released to a greater extent, resulting in a wave of fragrance which may not always be felt pleasant.

DE 44 18 720 relates to a filter consisting of a filter layer and an additive. The additive is intended to kill the germs or bacteria or be made so that it overlaps or overlaps. absorbs odorous substances. The additive should act directly on the filtered material (see column 1, lines 27, 28 of DE 44 18 720-A1).

According to this document, the additive is concentrated in the hollow space of the filter and stored separately from the inner wall of the filter bag. The additive is stored in a pad and comes into contact with the filtered impurities only by the additive released. The active ingredients of the additive can be bound to the respective carrier particles by saturation or mixing, in which case it is expedient that the pad is tear-resistant.

Referring to JP-A-61-62431 (D2), it should be pointed out that this only describes an unsuccessful attempt to use the activated carbon granulate in free form. In fact, this document is described only as a starting point for the invention described therein, and this starting point did not lead to success. In any case, this JP document shows that this is a deodorizing effect in the dust collecting space. It is questionable what this actually implies. In any case, the insertion of activated carbon according to this JP document did not lead to the desired success. The introduction of activated carbon must therefore be regarded as a previously known but unsuccessful measure. Success was not achieved, among other things, because the deodorizing effect could only manifest itself in a limited area around activated carbon. The added coarse-grained composition - see the prior art illustration in this file, Fig. 6 - was not able to create a deodorizing effect by itself. In addition, the deodorizing effect can be achieved in a wide variety of ways. Details are not apparent from the JP document. In any case, it is not apparent from this publication to treat activated carbon in the form of a granulate in the dust collecting space so that, in accordance with the proposed new claim 1 or 2, it is possible to treat the activated carbon. of the new claim 4 evenly distributed in the dust collecting space during operation. For this purpose, the granulate grains proposed there are too heavy and stationary.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the method of vacuuming the dust with a dust vacuum cleaner in such a way that, while maintaining a low pressure loss, a sudden odor wave is prevented, especially after the vacuum cleaner is switched on. It is a further object of the invention to provide a structure for this method of a suitable dust filter bag or dust collecting space.

The method according to the invention, on the other hand, is intended to suppress unpleasant odors without the user even knowing it. It is not necessary to work with other odors to cover the suppressed odor. Only the adsorbent is used, which is designed so that it is evenly distributed in the dust collecting chamber and thus mixed with the dust during the vacuuming process. The odors produced diffuse to and are absorbed by the adsorbent. Also, no start-up smell can occur and this is independent of the degree of filling of the dust collecting space. Due to the fact that the adsorbent is designed to evenly distribute in the dust collecting space, an efficient adsorption of undesirable odorous substances is achieved. There may be no local odors that could lead to an odor burst when the vacuum cleaner is started.

SUMMARY OF THE INVENTION

The above-mentioned drawbacks of known solutions of this kind are largely overcome and the object of the present invention is to provide a method of vacuuming a dust vacuum cleaner in which the dust is first sucked into the dust collector or dust filter bag and subsequently removed, directly added to the dust collector. or introducing the composition in an amount corresponding to 50% of the volume of the dust collecting space according to the invention, characterized in that the odor adsorption is carried out by means of an adsorbent, e.g. at the beginning of the first vacuum or each vacuum and is located in the dust collection space in free form, and that the adsorbent is adapted to be evenly distributed in the dust collection space.

-2Cl 301681 Bo

Thanks to this solution, the odorous substances are bound at the place of their origin. This is achieved by placing the adsorbent in the immediate vicinity of the aspirated dust. The amount of adsorbent may in this case be relatively small, approximately between 3 and 30 g, preferably between 5 and 50 g, per conventional dust collecting space. The adsorbent is preferably in the form of loosely packed or introduced grains. Smelling substances are not transported to the adsorbent only by the air stream while the vacuum cleaner is operating. On the contrary, this transport takes place especially when the vacuum cleaner is not in operation by diffusion of odorous substances. One of the advantages of the solution according to the invention is that there is no pressure loss on the filter through which the air passes through the dust extractor during operation. Furthermore, the accumulation of larger amounts of odorous substances in the dust filter bag or dust collector is avoided. the odorous substances can continuously diffuse to the adsorbent and bind to the adsorbent. As a result, unlike known odor filters, relatively large amounts of odorous substances need not be adsorbed in the short term. Thus, in the case of the diffuse odor filter according to the invention, it exhibits an average adsorption kinetics without producing an intense odor wave when the vacuum cleaner is switched on. Due to the method according to the invention, in vacuuming the dust, odor molecules are eliminated which would be deflated immediately after switching on the vacuum cleaner.

The adsorbent can be placed on the vacuum floor and sucked into the dust collector or dust filter bag together with the vacuum dust.

It is also possible that the adsorbent is present in the dust collection chamber in the storage container and is evacuated from the storage container during dust extraction.

The invention also relates to a dust collector or a dust filter bag for a vacuum cleaner, wherein a free-form composition according to the invention is present in the dust collector or outside the dust collector without aspirated dust. the composition being an adsorbent for adsorption of odors, such as activated carbon, zeolites or porous polymers, in the form of chips, spheres or fibers, and that the adsorbent is adapted to be evenly distributed in the dust collection space.

It is possible that a storage container for manual emptying is attached externally as a dust bag of the dust collecting space provided.

Another possibility is that an opening of the adsorbent storage container is arranged on the inner wall of the dust collecting space.

This adsorbent storage container is arranged on the inside of the carrier plate as a dust filter bag of the dust collection space provided.

Another possibility is that, when the dust collecting space is provided as a dust filter bag, an opening container, for example a bag, is pierced with the suction opening of the dust filter bag.

The adsorbent may be powdered activated carbon having a grain size between 0.15 and 0.25 mm.

Preferably, the adsorbent, when it consists of activated carbon fibers, has a fiber diameter of 0.01 to 0.1 mm and a fiber length of 10 to 100 mm.

It is also possible to dispense an adsorbent, for example activated carbon in the form of chips, spheres or fibers, into a bag which the user inserts into the bag before the first use of the dust filter bag or dust collector. Such an adsorbent bag is of an extremely air permeable material, such as a thin web of pulp or meltblown. In order to achieve sufficient space in this process

If the adsorbent is distributed in the dust collector or dust filter bag, a plurality of small adsorbent bags, for example two bags, each containing grams of activated carbon, are placed therein. However, it is also possible that the adsorbent is introduced into the dust collecting space or dust filter bag in free form. This has proven to be advantageous in that the adsorbent comes into close contact with the aspirated dust so that the odorous substances can diffuse extremely easily to the adsorbent. This can be done, for example, by inserting a certain amount of adsorbent into the filling opening of the dust filter bag or dust collector via a dosing container. Alternatively, the adsorbent may also be provided in the form of batches of activated carbon in the bags. Accordingly, the user can insert a defined dose of adsorbent into the dust collector prior to the start of the first vacuum, i.e. after the new dust filter bag has been inserted or the dust collector has been emptied. Alternatively, the adsorbent can be placed on the floor to be vacuumed and sucked into the dust collector or dust filter bag together with the dust to be vacuumed. The particulate adsorbent is thus sucked into an empty dust collector or dust filter bag. In this case too, it is conceivable that the adsorbent is sprayed onto the floor to be vacuumed by means of a dosing vessel, which ensures the dosing of the adsorbent. Another possible alternative is that the adsorbent is inserted into the dust collector or the dust filter bag in a storage container and is vacuumed out of the storage container during the vacuum extraction. Thus, in the region of the intake air inlet for the dust collector or dust filter bag, an open bag or container can be arranged circumferentially, from which the first time the vacuum cleaner is switched on after the dust filter bag has been replaced or the collector has been emptied During the closing of the dust collector or the filter chamber where the dust filter bag is stored, the adsorbent is emptied into the dust filter bag or dust collector. It is also conceivable for the adsorbent to disperse itself in the respective space after at least a partial failure of the storage bag or storage container. It is also conceivable that the storage container is brought into the open position to release the adsorbent by a stream of suction air or by a vacuum which acts in the dust collecting space or in the dust filter bag, or is provided with such a controllable lid. The invention further relates to a dust bag filter, in particular for carrying out the method described, wherein the adsorbent for mitigating the odor wave upon switching on the dust vacuum cleaner is stored in the dust filter bag in free form. Due to this solution, the adsorbent is in close contact with the aspirated dust so that the odorous substances can diffuse to the adsorbent particularly easily. The odorous substances can thus be bound at their place of origin. With this solution, it has proven to be particularly advantageous that such a diffuse odor filter within the dust filter bag will do with a moderate adsorption rate without the risk of a strong odor wave being triggered when the vacuum cleaner is switched on. Activated carbon, zeolites or porous polymers in the form of chips, spheres or fibers can be used as the adsorption material. Their size distribution, chemical equipment, ie bactericidal and fungicidal additives, as well as the amount of adsorbent are adapted40 to accommodate the storage volume of the dust collector or dust filter bag and the areas of use, that is, the intended vacuums. which is the determining ratio of macro-, meso- and micropores in the adsorbent. However, technical and user criteria are also important. For example, the adsorbent according to the invention has the property that it is evenly dispersed in the dust collecting space or in the dust filter bag and settles as permanently as possible on its inner wall. This can be accomplished, for example, by using very fine fractional activated carbon. However, other materials are also contemplated, for example, molecular sieves in powder form. Also preferred is the addition of a moisture binding agent, for example silica gel, thereby deteriorating the living conditions for microorganisms in the dust collecting space or in the dust filter bag while increasing the adsorption performance of the activated carbon. In the simplest case, it is possible to imagine that before the first vacuum, i.e., after the dust filter bag has been replaced or the dust collector has been emptied, the particulate adsorbent is dispersed on the vacuum floor and then sucked into an empty dust bag or collector. space for dust. The adsorbent is thus in close contact with the aspirated dust so that the odorous substances can diffuse to the adsorbent particularly easily. Alter-4C 301681 B6 natively, a solution may also be used in that the adsorbent is arranged outside the dust filter bag attached to the dust filter bag by hand. When a new dust filter bag is inserted into the vacuum cleaner, for example, a bag containing a portion of the adsorbent is torn off from the support plate of the dust bag, the bag previously held on the support plate is torn and the adsorbent contained therein is poured into the inlet opening of the dust bag. Such an adsorbent dose bag may also be loosely packaged with the dust filter bag, and the user also has the option of pouring the adsorbent directly into the dust filter bag or dispersing it in advance on the vacuum floor. Another possible alternative may be that the adsorbent is arranged in its own air permeable jacket within the dust filter bag. The sheath consists of an air permeable material, such as a thin web of pulp or meltblown. Such an adsorbent jacket or bag can be inserted into the dust filter bag at the factory. However, it is also possible for such an adsorbent bag to be loosely or removably attached to the support plate of the dust filter bag. The user places the adsorbent bag into the dust filter bag through its inlet before the first use of the dust filter bag. The adsorbent bag is sized to accommodate the cross section of the inlet opening of the dust filter bag. Preferably, the dimensions of the pouch are a fraction of the diameter of the inlet opening of the dust filter bag. Furthermore, in order to ensure the spatial distribution of the adsorbent in the dust filter bag, it is advantageous if a plurality of adsorbent pouches are stored in or inserted into the dust filter bag.

In addition, it is advantageous if a plurality of adsorbent particles are arranged in the jacket of the pouch. For example, it is recommended that two pouches, each containing 5 grams of activated carbon, are contained in the dust filter bag. In another alternative embodiment of the dust filter bag according to the invention, it is proposed that an adsorbent storage container is arranged on the inner wall of the dust filter bag, which is adapted to be opened by an air stream or under 25 pressure. Thus, a storage container overlapping the inlet opening of the dust filter bag can be used, which, upon first switching on the dust cleaner after the dust filter bag has been replaced by an air stream or vacuum in the dust filter bag, tears off the inlet. This may be, for example, an adsorbent-filled bag which is initially fixed at the edge of the inlet opening of the dust filter bag. Under the effect of an air flow or vacuum, the bag is torn away from its attachment point, whereupon its contents can be discharged through the openings into the interior of the dust filter bag. Alternatively, the storage container may be perforated and tear off along the perforation when the vacuum cleaner is switched on, thereby releasing the adsorbent therein. Furthermore, said reservoir can also be designed as a bowl that initially closes the inlet opening of the dust filter bag. In addition, it is also conceivable that the adsorbent storage container is arranged on the inside of the dust filter bag carrier plate near its inlet opening. Thus, an annular container may be provided on the underside of the dust filter bag carrier plate which surrounds the inlet opening and which, when the vacuum cleaner is turned on, breaks away from the carrier plate under the action of an air flow or vacuum, thereby releasing the adsorbent. Another possibility is that when the vacuum cleaner is switched on, the cap retaining the adsorbent in the storage container is detached or opened by the action of an air stream or by the resulting vacuum. In addition, there is also the possibility that the adsorbent is arranged in a storage container openable by puncture, for example in the form of a bag, which overlaps the inlet opening of the dust filter bag for the suction nozzle of the vacuum cleaner. The user may pierce the storage container prior to inserting the new dust filter bag so that the adsorbent contained therein is poured into the dust filter bag. However, the above-described embodiment of the dust filter bag is particularly useful when the dust filter bag is inserted into the filter chamber and, when closed, a suction nozzle, which is connected to the suction channel, is inserted into the inlet opening in the support plate of the dust filter bag. Thus, when closing the filter chamber, the storage container is pierced by the retracted suction lance and the adsorbent is poured into the dust filter bag and dispersed therein. It is particularly preferred that the adsorbent is powdered activated carbon having a grain size between 0.15 and 0.25 mm, the fraction below the lower limit being less than 2% by weight.

Activated carbon fibers with a diameter of 0.01 to 0.1 mm and a length of 10 to 10 are also very preferred

-5GB 301681 B6

Powdered activated carbon with CTC values greater than 60%, made from coconut shells, is also extremely effective.

A number of significant advantages result from the above-described odor filtration solutions or the implementation of diffuse odor filters. Odor filters, i.e., adsorbent in both pouches and in free form, are not immediately in the airflow path, as opposed to standard adsorption filters. In addition, when using the adsorbent in free form, the support structure for the adsorbent is eliminated. Furthermore, the pressure losses caused by the diffuse odor filter according to the invention are negligible compared to the pressure losses caused by standard adsorption filters. The diffusion odor filter according to the invention also acts at rest of the vacuum cleaner so that in the dust collector or in the filter bag dust, avoiding the formation of more odorous substances. The removal of the adsorbent support structure saves material and production costs. In addition, the user can adapt the adsorption performance with individually selected adsorbent doses to his needs, i.e. he can increase the dose if, for example, pets are kept in the apartment. Furthermore, it has also proven to be advantageous that the diffusion odor filter according to the invention is ejected each time the dust filter bag is replaced or the dust collector is emptied. As a result, a new odor filter with an optimum adsorption characteristic is always available after said replacement or emptying. Good efficiency is given by the use of activated carbon with a particle diameter of less than 0.5 mm,

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The invention is illustrated by the following non-limiting examples, which are described in the accompanying drawings, which show:

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12 shows a dust vacuum cleaner with a dust bag, the adsorbent being poured onto the floor to be sucked;

1, but with a vacuum cleaner with a dust collector;

dust filter bag designed for manual filling with adsorbent;

a plan view of a support plate of a dust filter bag with a bag containing a dose of adsorbent;

a dust filter bag during filling with the adsorbent from the torn bag of Fig. 4;

another plan view of the dust filter bag carrier plate with an adsorbent bag that overlaps the dust filter bag inlet;

a partial cross-section of the dust filter bag with the adsorbent bag of FIG. 6 mounted in the inlet opening;

a plan view of a support plate of a dust filter bag showing another alternative embodiment of an adsorbent storage container;

7 is a section corresponding to that of FIG.

another section corresponding to that of FIG. 7, but relates to another embodiment of the adsorbent storage container;

another section corresponding to that of FIG. 7, however, relates to a further embodiment of a bag-shaped adsorbent storage container with easier tear points;

Figure 11, wherein the adsorbent storage container, which is arranged in the region of the inlet opening, is punctured by the suction extension of the vacuum cleaner;

-6GB 301681 B6

Fig. 13 is a view corresponding to Fig. 12, but using a cup-shaped adsorbent storage container;

FIG. 14 shows another alternative embodiment of the adsorbent storage container on the underside of the support plate near the edge of the inlet opening; and

FIG. 15 is a partial sectional view of a dust filter bag containing a coated adsorbent.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a dust vacuum cleaner 1 with a dust filter bag 3 which is mounted in a filter chamber 2. During operation of the vacuum cleaner 1, a vacuum nozzle 5 is generated in the vacuum cleaner nozzle 5 by means of a schematically indicated motor-fan unit. Dust and dirt particles are entrained from the cleaned floor 6, which are then transported to the dust filter bag 3 by means of a suction air stream in a suction channel (not shown). The motor-fan unit 4 is downstream of the dust filter bag 3.

Dust trapped in the dust filter bag 3 will remain there for some time. During this time, different odors are produced by microbiological degradation of the various components of the dust, which are adsorbed as described below.

For this purpose, an adsorbent 7 in the form of activated carbon, zeolites or porous polymer is inserted or introduced into the dust filter bag 3.

In the embodiment according to FIG. 1, the adsorbent is powdered onto the vacuum floor 6 by means of the dosing container 8 and subsequently sucked into the dust filter bag 3 together with the vacuum dust after the vacuum cleaner 1 has been started. The dispensing container 8 functions like a sugar bowl, so that a single flipping of the pre-defined dose of adsorbent 7 is emptied. However, the adsorption performance can be adjusted by the user by preparing an individually selected amount of adsorbent 7, i.e. benefits. For example, in the case of intensely stinking dust due to the behavior of pets, a double dose of adsorbent 7 can be emptied onto the floor to be vacuumed.

This preparation of the adsorbent 7, or its suction into the dust filter bag 3, is preferably carried out once at the first start of the dust cleaner 1 after the dust filter bag 3 has been replaced.

FIG. 2 schematically illustrates a dust vacuum cleaner 1, which is equipped with a separator and a dust collecting space 9 arranged downstream thereto for trapping dust particles and dirt. This dust vacuum cleaner 1 does not contain any replaceable dust filter bag 3 as required, as in the first embodiment. Instead, the filled dust collecting space 9 is emptied as required.

Also in this method of vacuuming, when the aspirated dust remains in the dust collecting space 9, after some time the various components of the dust are microbiologically degraded, resulting in undesirable odors. Particularly when the vacuum cleaner 1 is switched on, this creates an unpleasant initial smell of odor which can be prevented by introducing adsorbent 7 into the dust collecting space 9.

According to the first exemplary embodiment described with reference to FIG. 1, in this second exemplary embodiment, the adsorbent 2 is sprayed onto the floor 6 to be cleaned by means of the dosing container 8 and then sucked together with the dust to be sucked into the dust collecting space.

-7EN 301681 B6

Due to the adsorbent 7 being sucked into the dust filter bag 3 or the dust collecting space 9, the adsorbent 7 is in close contact with the sucked dust so that the odorous substances can diffuse to the adsorbent 7 particularly easily 4.

FIG. 3 shows a dust filter bag 3 which can be filled with adsorbent 7 before first use. This filling is here, as in the above-described embodiments, by means of a dosing vessel 8 for dispensing predefined doses of adsorbent 7, which is introduced into the dust filter bag 3 by spraying through the inlet opening 10 of the dust filter bag 3. In this case too, the user has the possibility to individually select the amount of adsorbent and thus to make it his own need.

In addition, the dose of adsorbent 7 from the dosing vessel 8 can also be sprayed into the dust collecting space 9 of the dust cleaner 1 of FIG. 1.

In a further alternative, the user of the adsorbent 7 may also be provided in ready-to-use doses, for example in the form of a bag H containing a dose of adsorbent 7. This bag 11 may be loosely packed to the dust filter bag 3. According to Figs. 4 and 5, such a bag 11 containing a dose of adsorbent 7 may also be attached to the dust filter bag 3, for example by being detachably attached to the top side of the support plate 12 of the dust filter bag 3. The bag 11 on the carrier plate 12 is arranged for the user to be noticeable, for example in such a way that the plan view of the bag LL in the form of an arrow is an instruction manual. After the bag 11 has been removed from the carrier plate 12, the adsorbent 7 from the bag 11 can be poured through the inlet 10 into the dust filter bag 3. For this purpose, the bag 11 can be torn along a preferably perforated line.

In another alternative, the adsorbent 7 of Figure 5 may be provided in a storage container 13.

FIGS. 6 and 7 show an exemplary embodiment in which the container 13 is a bag having a circular edge. The container 13 thus formed contains a predetermined dose of adsorbent 7.

The pouch-like container 13 overlaps the inlet 10 of the support plate 12 of the dust filter bag 3 and is loosely inserted and retained between two layers of the multi-layer support plate 12 in the region of its circular edge 14. These layers of the carrier plate 12, which are otherwise glued in the usual manner, are not connected to each other in the region of the circular edge of the storage container 13.

In addition, it is contemplated that the annular zones of the two layers that enclose the storage container 13 are provided with depressions, such as being compressed here.

After inserting the dust filter bag 3 into the vacuum cleaner and the dust and then switching it on, the supply container 13 is pulled out of the inlet opening W into the dust filter bag 3 by a stream of air or vacuum. The adsorbent 7 can then be sprayed into the dust filter bag 3, the pouch-shaped reservoir 3 being closed over the circumference of the circular edge 14 for this purpose.

Due to this solution, a defined dose of adsorbent 7 is automatically introduced into the filter 45 of the dust bag 3, and the dose of adsorbent 7 is freely dispersed in the dust filter bag 3.

FIGS. 8 and 9 show an alternative with a storage container 13 mounted on the underside of the support plate 12. The storage container 13 is shown with a plan view of a substantially rectangular shape that overlaps the inlet opening W on the underside of the support plate. the container 13 is adhered to the underside of the carrier plate 12 in the region between the inlet opening W and the edge of the narrower side of the carrier plate 12. The free end of the storage container 13 is provided from this glued area 15 which is in the unused filter bag 3. 9 is closed by a plug-in flap podle7, which is integrally formed with a dust bag 3.

-8EN 301681 B6

The storage container 13, which contains a defined dose of adsorbent 7, is designed to be substantially self-supporting such that, in the unused dust filter bag 3, it runs almost parallel to the carrier plate 12 according to FIG.

By means of the air flow or vacuum generated after switching on the dust cleaner 1 in the dust filter bag 3, the storage container 13 is swung towards the dust filter bag 3, the plug flap 17 simultaneously sliding out of the opening 16 and releasing it. The adsorbent 7 can then be discharged from the storage container 13 and dispersed in the dust filter bag 3.

io

It is also conceivable that the reservoir 13 will be in the form of an open paper or foil hose that will be folded at its ends and attached below the inlet 10 of the support plate 12, for example by inserting a free end into the inlet 10.

A further alternative to the last-described embodiment is shown in FIG. 10. The storage container 13 is shown here in the form of a paper or foil hose, the free, hinged end of which is fixed on the underside of the carrier plate 12. In the illustrated embodiment, this is accomplished by an easily overcome wax glue 18. With the exhaust air stream, this free end is torn off from the wax glue 18 and the adsorbent 7 is emptied.

The reservoir 13 may alternatively be perforated 19 according to FIG. 11. The reservoir 13 is designed as a bag or pouch on the underside of the base plate 12, covers the inlet opening 10 and is attached, for example glued, to the edge of the carrier plate 12. preferably in alignment with the edge of the inlet opening 10.

When the vacuum cleaner 1 is switched on, this supply container Γ3 is torn off completely or only partially along the perforation 19 through the air flow or vacuum generated in the dust filter bag 3, whereupon the adsorbent 7 can freely pour into the filter bag 3 dust.

For embodiments in which the storage container L3 is in the form of a bag or hose, generally the absorbent 7 contained in a separate or open storage container 13 can be completely emptied from the storage container 13, which is aided by suction of the adsorbent 7 from the storage container. 13 into the dust filter bag 3.

In vacuum cleaners 1 in which the connection between the suction channel and the dust filter bag 3 is formed by a suction nozzle 20 which is introduced into the inlet opening 10, the release in the storage container Γ of the stored adsorbent 7 can also be disrupted by breaking the storage container 13 with the suction nozzle 20 .

Such embodiments are shown, for example, in FIGS. 12 and 13, wherein in FIG. 12 there is arranged at the underside of the support plate 12 a storage container 13 according to FIG. 11 which covers the inlet opening 10. Suction sleeve 20 which in which the dust filter bag 3 is stored, penetrates into the inlet opening 10 in the base plate 12, tearing off the storage container

13 along the perforation 19, after which the storage container 13 falls into the dust filter bag 3. The adsorbent 7 contained in the now damaged storage container L3 can be discharged from it. Any adsorbent residues 7 in the storage container 13 are aspirated therefrom after the vacuum cleaner 1 has been started.

FIG. 3 shows a bowl-shaped storage container 13 provided with a peripheral guide 50. This peripheral flange 21 is mounted between two layers of a multilayer support plate 12.

For this purpose, at least one of the layers is provided with an annular shoulder concentric with the inlet opening 10 for receiving this peripheral flange 21.

-9EN 301681 B6

The bowl-shaped storage container L3, which is inserted in the inlet opening 10, contains a dose of adsorbent 7.

This reservoir L3, in its plan view, substantially corresponds to the cross section of the inlet opening 10 and is made, for example, of paper material.

Upon replacement of the dust filter bag 3 and subsequent closing of the filter chamber 2, the suction nozzle 20 penetrates into the inlet 10 and breaks the bowl-shaped storage container 13, which is pierced both in the region of its upper wall 22 and the lower wall 23. In this case too, the adsorbent 7 contained in the storage container 13 can be freely poured into the dust filter bag 3.

FIG. 14 further shows an alternative embodiment in which a bowl-shaped storage container 13 with a bottom wall 23 is attached to the underside of the carrier plate at the edge of the inlet 10, which after the vacuum cleaner 1 is switched on by air flow or vacuum. tears or tears, for example along the perforation, thereby releasing the adsorbent 7.

Due to the described arrangement of the reservoir 13 in the support plate 12 or below the support plate

12, or inside the dust filter bag 3, free adsorbent 7 is emptied into the dust filter bag 3 at the first start-up of the dust cleaner 1. In addition, the user has the possibility to increase the dose of adsorbent 7 according to his needs, e.g. by means of a dosing vessel 8.

The described various possibilities of introducing adsorbent 7 into the dust filter bag 3 are essentially also used in the dust collecting space 9 of FIG. 2. The bulk adsorbent 7 has the particular advantage of being in close contact with the aspirated dust, so that the odorous substances can diffuse particularly well to the adsorbent 7.

A further possibility is that, according to FIG. 15, the adsorbent 7 is deposited in its own air-permeable casing 24. For example, lozenge-shaped pouches 25 containing a certain amount of adsorbent 7 can be used.

These bags 25, which are filled with the doses of adsorbent 7, can be freely deposited in the dust filter bag 3 during production. However, it is also conceivable that these pouches 25 are not introduced into the dust collecting bag 3 or the dust collecting space 9 before the vacuum cleaner 1 is started. To this end, the dimensions a of the housing 24 must be substantially smaller than the diameter b of the inlet opening 10 or the opening for the suction lance 20 in the dust filter bag 3. In the case of the dust cleaner 1 of FIG. 2, the pouch 25 must be smaller than the dust collecting space 9. The dimension a of the housing 24 may be, for example, one-fifth to one-tenth of the diameter b of the inlet opening 10.

In order to ensure a sufficient spatial distribution of the adsorbent 7 deposited in the housing 24 in the dust filter bag 3 or in the dust collecting space 9, several small bags 25 are used with this adsorbent 7.

By carrying out the embodiments of the invention described above, the adsorbent 7 is in the immediate vicinity of the aspirated dust. In this way, not only odorous substances are eliminated, which are transported by the air stream during operation of the vacuum cleaner 1. The transfer of odorous substances to the adsorbent 2 takes place mainly by diffusion, especially when the vacuum cleaner 1 is stopped. A build-up of more odorous substances in the dust filter bag 3 is avoided, since the resulting odorous substances continuously diffuse to and bind to the adsorbent 7. With the odor diffusion filter thus implemented, a moderate adsorption rate is sufficient without the need to worry about an intense breath of odor when the vacuum cleaner 1 is switched on.

-10GB 301681 B6

The adsorbent 7, which is introduced into the dust filter bag 3 in free form according to FIGS. 1 to 14, has the property of evenly distributing it in the dust filter bag 3 or settling permanently on the inner wall of the dust filter bag 3, or dust collecting space 9. It is also advantageous if an additive of a moisture binding agent, for example silica gel, is also used to deteriorate the living conditions for microorganisms in the dust filter bag 3 or in the dust collecting space 9 while increasing the adsorption performance of the adsorbent 7.

Claims (10)

PATENT CLAIMS A method of vacuuming dust with a vacuum cleaner (1), wherein the dust is first sucked into the dust collecting space (9) or the dust filter bag (3) and subsequently removed, wherein immediately into the dust collecting space (9) adding or introducing the composition in an amount corresponding to a fraction of the volume of the dust collecting space (9), characterized in that the odor adsorption is carried out by means of an adsorbent (7), e.g. (9) for dust introduced before 20 at the beginning of the first vacuum or each vacuum and is located in the dust collecting space (9) in free form, and that the adsorbent (7) is adapted to be evenly distributed in the dust collecting space (9). The method according to claim 1, characterized in that the adsorbent (7) is distributed over the adsorbent (7) 25 to the vacuum floor (6) and to the dust collecting space (9) or the dust filter bag (3) is sucked together with the vacuum dust. Method according to claim 1, characterized in that the adsorbent (7) is present in the dust collecting space (9) in the storage container (13) and is removed from the storage container during the vacuum extraction. 30 of the container (13) is aspirated. 4. A dust collector (9) or a dust bag (3) for a vacuum cleaner (1), wherein a means is present in the dust collector (9) or outside the dust collector (9) without aspirated dust. in free form, for carrying out the process according to claims 1 to 2 35, characterized in that the composition consists of an adsorbent (7) for adsorption of odors, such as activated carbon, zeolites or porous polymers, in the form of chips, spheres or fibers, and that the adsorbent (7) is adapted to be uniformly distributed in the collection of the dust compartment (9). Dust collecting compartment according to claim 4, characterized in that a storage container (13) for manual emptying is attached outside the dust collecting bag (9) of the dust collecting space (9). Dust collecting compartment according to claim 4, characterized in that the inner wall of the dust collecting compartment (9) is openable by air flow or by vacuum. 45 storage container (13) for adsorbent (7). Dust collecting compartment according to claim 6, characterized in that the storage container (13) with the adsorbent (7) is arranged on the inner side of the support plate (12) as a filter bag (3) for the dust collecting compartment (9) provided. dust. Dust collecting compartment according to one of claims 4 or 5, characterized in that the dust collecting compartment (9) is in alignment with the dust collecting compartment (9) as a filter bag (3). A puncture-open storage container (13), for example a bag, is provided by a suction opening of the dust filter bag (3). A dust collector according to any one of claims 4 to 8, characterized in that the adsorbent (7) is powdered activated carbon with a grain size between 0.15 and 0.25 mm. The dust collector according to any one of claims 4 to 8, characterized in that the adsorbent (7), when it consists of activated carbon fibers, has a fiber diameter of 0.01 to 0.1 mm and a fiber length of 10 to 100 mm.