EP4455051A1 - Mobile waste collection and compaction device - Google Patents

Abstract

Mobile device (1) for collecting and compacting waste, comprising: a container (2) for receiving a waste bag, comprising a movable base plate (4) and a first seal (5) at the opening (6); a lid device (7) with a second seal (8); means (9) for generating compressed air; means (10) for generating negative pressure; means (11) for thermally welding the waste bag when the lid device is in the closed position; Means (31) for moving the mobile device (1), wherein the lid device (7) has a suction opening (12) which is arranged on the lid device (7) in such a way that, in the closed position, the gaseous atmosphere can be partially sucked out from the interior of a waste bag introduced into the container (2) by means of the means (10) for generating negative pressure, wherein the container (2) has an inlet opening (15) for compressed air which can be supplied with compressed air provided by the means (9) for generating compressed air in a controlled manner by means of an inlet valve (16).

Description

The present invention relates to a mobile device for collecting and compacting waste, in particular a waste container. In particular, the present invention relates to a device having the features of the preamble of claim 1. The present invention also relates to a method for collecting and compacting waste.

Background and State of the Art

Devices for collecting and compacting waste are known in the state of the art. For example, the EP 209 639 A1 a device for compacting kitchen waste. In the device, the waste is exposed to atmospheric pressure by sucking out the air with a pump, which compacts it.

In the EP 1 498 364 A1 discloses a device for collecting and disposing of dry waste, wet waste and the like. The device comprises a container with a lid, which is secured by hermetic closure elements, with a piston inside, which can slide and forms a hermetic chamber. Furthermore, there are waste compaction and liquid discharge elements, as well as air and liquid suction elements, which are connected to the chamber and the interior of a flexible container. However, the piston is only retracted by a spring, there is no active pressing of the waste.

The WO 2007/076964 A1 discloses a waste container with a bag located therein and a vacuum pump for sucking gas, in particular air, out of the bag, wherein a pressing device is provided with which a material inside the bag can be pressed and thus compressed before the gas is sucked out. However, details of the pressing device are not disclosed, only a pressing plate that moves "downwards" is mentioned. The publication also discloses a welding device for gas-tight sealing of the bag.

In the waste containers known in the state of the art, essentially only atmospheric pressure is used to compress the waste bag, or an unspecified press plate is moved "downwards". With a typically high space requirement for waste, including garbage, rubbish, containers, etc. and low compression, both unnecessary space and unnecessary material are used for the Collection, storage and disposal of garbage, typically garbage bags.

disclosure of the invention

It is an object of the present invention to overcome the above-mentioned disadvantages of the prior art and in particular to provide a mobile waste container in which waste can be collected and stored, compacted as much as possible and then disposed of cleanly, and which is at the same time easy to use.

• a) einen Container (2) zur Aufnahme eines Abfallbeutels umfassend Seitenwände (3), eine Bodenplatte (4) und eine erste Dichtung (5) an der Öffnung (6),
• b) eine Deckelvorrichtung (7) mit einer zweiten Dichtung (8), wobei die Deckelvorrichtung derart konfiguriert und angeordnet ist, dass sie gegenüber der Öffnung (6) des Containers (2) in eine geöffnete Position gebracht werden kann, so dass die Öffnung (6) des Containers (2) zur Einführung eines Abfallbeutels zugänglich ist, und gegenüber der Öffnung (6) des Containers (2) in eine Verschlussposition gebracht werden kann, so dass die Deckelvorrichtung (7) derart formschlüssig mit der Öffnung des Containers (2) interagiert, dass ein in den Container (2) eingebrachter Abfallbeutel zwischen der ersten Dichtung (5) und der zweiten Dichtung (8) gegen die Deckelvorrichtung (7) luftdicht abgedichtet werden kann,
• c) Mittel (9) zur Erzeugung von Druckluft,
• d) Mittel (10) zur Erzeugung von Unterdruck,
• e) Mittel (11) zum thermischen Verschweißen eines in den Container (2) eingebrachten Abfallbeutels, wenn sich die Deckelvorrichtung in Verschlussposition befindet, wobei sich die Mittel an der Öffnung (6) des Containers und/oder an der Deckelvorrichtung (7) befinden, und
• f) Mittel (31) zum (horizontalen) Verschieben der mobilen Vorrichtung (1),
  wobei in der Vorrichtung g) die Deckelvorrichtung (7) eine Absaugöffnung (12) aufweist, die derart an der Deckelvorrichtung (7) angeordnet ist, so dass in der Verschlussposition aus dem Inneren eines in den Container (2) eingebrachten Abfallbeutels die gasförmige Atmosphäre mittels der Mittel (10) zur Erzeugung von Unterdruck teilweise abgesaugt werden kann,
• h) der Container (2), bei verschlossener Öffnung (6), luftdicht ist,
• i) die Bodenplatte (4) des Containers gegenüber den Seitenwänden (3), und in der Verschlussposition in Richtung Deckelvorrichtung (7), verschiebbar ist,
• j) Mittel (14) zum Verschieben der Bodenplatte (4) gegenüber den Seitenwänden (3) vorhanden sind, und
• k) der Container (2) eine Einlassöffnung (15) für Druckluft aufweist, die gesteuert mittels eines Einlassventils (16) mit Druckluft, die vom Mittel (9) zur Erzeugung von Druckluft zur Verfügung gestellt wird, beaufschlagt werden kann.

This object is achieved according to the present invention with a mobile device (1) for collecting and compacting waste comprising

• a) a container (2) for receiving a waste bag comprising side walls (3), a base plate (4) and a first seal (5) at the opening (6),
• b) a lid device (7) with a second seal (8), wherein the lid device is configured and arranged such that it can be brought into an open position relative to the opening (6) of the container (2) so that the opening (6) of the container (2) is accessible for the introduction of a waste bag, and can be brought into a closed position relative to the opening (6) of the container (2) so that the lid device (7) interacts with the opening of the container (2) in such a form-fitting manner that a waste bag introduced into the container (2) can be hermetically sealed against the lid device (7) between the first seal (5) and the second seal (8),
• c) means (9) for generating compressed air,
• d) means (10) for generating negative pressure,
• e) means (11) for thermally sealing a waste bag placed in the container (2) when the lid device is in the closing position, the means being located at the opening (6) of the container and/or at the lid device (7), and
• f) means (31) for (horizontally) moving the mobile device (1),
  wherein in the device g) the lid device (7) has a suction opening (12) which is arranged on the lid device (7) in such a way that in the closed position the gaseous atmosphere can be partially sucked out from the interior of a waste bag introduced into the container (2) by means of the means (10) for generating negative pressure,
• h) the container (2) is airtight when the opening (6) is closed,
• i) the base plate (4) of the container is displaceable relative to the side walls (3) and in the closed position towards the lid device (7),
• j) means (14) for moving the base plate (4) relative to the side walls (3) are present, and
• k) the container (2) has an inlet opening (15) for compressed air, which can be supplied with compressed air provided by the means (9) for generating compressed air in a controlled manner by means of an inlet valve (16).

1. a) den Schritt des Absaugens eines Teils der gasförmigen Atmosphäre aus einem Abfallbeutel, der Abfall enthält, unter
2. b) gleichzeitigem mechanischem Zusammenpressen des Abfallbeutels sowie
3. c) gleichzeitiger äußerer Luftdruckbeaufschlagung des Abfallbeutels.

The task is also solved by a process for collecting and compacting waste comprising

1. (a) the step of extracting part of the gaseous atmosphere from a waste bag containing waste,
2. b) simultaneous mechanical compression of the waste bag and
3. c) simultaneous external air pressure application to the waste bag.

This method can be carried out particularly advantageously by a mobile device according to the present invention.

Advantageous embodiments of the device and the method are the subject of the subclaims.

The invention is based on the realization that it is particularly advantageous to collect and compact waste if the compaction is not only carried out by sucking the air out of the waste bag, but in particular by additional, simultaneous mechanical compression of the waste bag and pressurizing it with compressed air. This leads in a simple way to waste with a particularly small space requirement and thus the best possible use of resources.

The invention will now be described in further detail with reference to preferred embodiments.

The mobile device for collecting and compacting waste according to the invention comprises a container for holding a waste bag. Typical containers are known in the art and are typically essentially cuboid-shaped or cylindrical. The container comprises an opening, typically the, preferably complete, top, as well as side walls, typically the 4 side walls of the cuboid or the cylinder surface of the cylinder, and a container base. According to the invention, the container is airtight when the opening is closed. This means that the side walls and the container base or the movable base plate inside the container form an airtight space if the opening were hermetically sealed. Suitable materials are plastics or metals, in particular glass fiber reinforced plastics. e.g. GFK 30 or GFK 40, PEEK plastics, PA6, as well as stainless steel or aluminum.

The container of the device according to the invention also has a first seal at the opening, typically on a surface of the top of the container perpendicular to the side walls (and parallel to the container floor). The seal is designed to be circumferential at the opening, i.e. it encloses the entire opening of the container. This seal is suitable for creating an airtight seal of the opening with a typical waste bag, with appropriate interaction with the second seal on the lid device. Suitable sealing materials are known in the art.

Insofar as seals are used in the present invention, suitable sealing materials are generally known to those skilled in the art. Typical materials include silicone, silicone foam, EPDM, NBR, CR, cellular rubber, foam rubber, fluoroelastomers, e.g. Viton ^® , fiber seals based on aramid fibers, e.g. KLINGERSIL ^® , PTFE (Teflon ^® ), polyurethane (Vulkollan ^® ), PVC and PMMA. Preferred materials are EPDM and silicone for the first, second and fourth seals. Fluoroelastomers, e.g. Viton ^® , are preferably used as seals against the welding and cutting electrodes.

In a preferred embodiment, the device has means for fixing a waste bag to the opening of the container, preferably a tensioning frame or tensioning clamps. Such a tensioning frame is attached to the container, for example, by means of a hinge and encloses the entire opening of the container. When the frame is folded away, the opening is freely accessible so that a waste bag can be placed in the container, the waste bag coming into contact with the first seal at the opening. The tensioning frame or the tensioning clamps are then closed and are thus able to fix the waste bag to the container. In one embodiment, the first seal, with the covering waste bag, is not or only partially covered by the means for fixing a waste bag, and remains essentially accessible, in particular for interaction with the second seal of the lid device. In an alternative embodiment, the first seal is contacted by the means for fixing a waste bag via the waste bag, if this is inserted, and, in the closed position, is also completely between the first seal on the container opening and the second seal of the lid device. The use of a clamping frame has the advantage that the waste bag can be placed neatly over the first seal on the container opening when it is inserted and can be fixed to the container using the means for fixing a waste bag, preferably the clamping frame or the clamping clamps. This leads to a high level of tightness if the second seal on the lid device in the closed position comes into contact with the waste bag and, if applicable, with the means for fixing a waste bag.

The container of the device according to the invention has a movable base plate inside, which is typically essentially planar. According to the invention, the base plate is designed as a type of piston that is movable within the container, i.e. is arranged to be movable perpendicular to the surface of the base plate, along the side walls. In one embodiment, the base plate of the container is hermetically sealed from the side walls by means of a third seal. In this embodiment, when the opening is closed, the side walls and the base plate form the airtight interior of the container. In this embodiment, the base plate preferably has means that enable the compressed air to be guided towards the top of the base plate. In a preferred alternative embodiment, the base plate of the container is not hermetically sealed from the side walls by means of the third seal; rather, when the opening is closed, the side walls and the container base form the airtight container. The latter design has the advantage that the third seal does not have to be hermetically sealed against the compressed air as soon as it is fed into the container interior, which would place higher demands on the material used. An inlet opening below the base plate is also sufficient for supplying compressed air to the container interior.

The base plate can generally be moved relative to the side walls and, in the closed position of the lid device, in the direction of the lid device (perpendicular to the surface of the base plate). For this purpose, there are preferably corresponding guide grooves or strips in the side walls. By moving the base plate, the volume of the container, defined by the space into which the waste bag can be inserted, can be reduced. When the base plate is moved, the third seal (also referred to as the "seal on the base plate") seals the base plate against the side walls in any position, in one of the embodiments described above, airtight, typically at least to prevent dirt from getting under the base plate. When the container is closed, it is thus hermetically sealed by the side walls (these are also airtight) and either by the base plate or at least by the container floor.

The container is described as airtight if, when the opening is closed, the container has an applied negative pressure of 500 mbar (absolute pressure inside) below 800 mbar (absolute internal pressure) for at least 30 minutes.

According to the invention, the container has an inlet opening for compressed air, which can be supplied with compressed air, preferably controlled by means of an inlet valve, provided by the means for generating compressed air. Compressed air can thus be introduced into the interior of the container, which is airtight, via the inlet opening. When a waste bag is put over the container opening and interacts with the first seal, either via the means for fixing a waste bag or via the second seal of the lid device in the closed position, the space between the waste bag and the container is hermetically sealed. Introducing compressed air into the space between the waste bag and the container and with the lid device in the closed position thus leads to pressing and thus compacting the contents of the waste bag. Preferably, according to the invention, the device is configured such that the compressed air, when used for the means for moving the base plate, can also be guided to the inlet opening, and thus into the interior of the container, in a controlled manner by means of an inlet valve.

In order to fix and move the base plate, the device according to the invention has means for moving the base plate relative to the side walls. These means for moving the base plate are, on the one hand, typically suitable for holding the base plate in the position of the maximum extension of the volume of the container, and in any case they are suitable for moving the base plate perpendicular to its surface and, in the closed position of the lid device, in the direction of the lid device or in the direction of the container opening, in such a way that the volume of the container (interior) can be reduced. The means for moving the base plate is hereby able to move the base plate towards the container opening, preferably with a pressure force of about 50 kPa to about 1000 kPa, preferably about 100 kPa to about 800 kPa, in particular from about 300 kPa to about 600 kPa. With this force, the waste bag placed in the container, including its contents, can thus be mechanically compressed when the lid device is closed. The possible extent of the displacement of the base plate is preferably at least such that the volume of the container, defined by the space into which the waste bag can be inserted, when the opening is closed by the lid device (and optionally by the closure device), can be reduced by 50%, i.e. to 50% of the maximum extent, preferably by 70%, i.e. to 30% of the maximum extent. Suitable means for displacing the base plate are, for example, screw rods, hydraulic cylinders, for example with air, water or oil as a medium, preferably pneumatic cylinders or bellows. The latter pneumatic cylinders or Bellows can advantageously be driven by the compressed air that can be made available by the means for generating compressed air contained in the device according to the invention. The means for displacement preferably comprise restoring elements, for example spiral springs. The restoring elements cause or assist a retraction (away from the lid device) of the base plate after the waste bag has been mechanically compacted. The restoring forces are typically lower than the compressive forces, preferably from about 50 kPa to about 500 kPa, preferably about 100 kPa to about 300 kPa. The means for displacing the base plate is configured in such a way that it can deliver both the compressive force specified above and the restoring force, i.e. the sum of the two.

The device according to the invention further comprises a lid device. This is configured to cover or close the opening of the container and for this purpose has a second seal on the side that interacts with the opening of the container. The lid device is configured and arranged in the device in such a way that it can be brought into an open position opposite the opening of the container so that the opening of the container is accessible for inserting a waste bag, and can be brought into a closed position opposite the opening of the container so that the lid device interacts with the opening of the container in such a form-fitting manner that a waste bag introduced into the container can be hermetically sealed against the lid between the first seal (on the container opening) and the second seal (on the lid device). The second seal thus corresponds in its extension essentially to that of the first seal, i.e. essentially to that of the container opening. If a waste bag is placed in the container and pulled over the opening and thus over the first seal, the waste bag is clamped and sealed between the first seal and the second seal, and if necessary the means for securing a waste bag, in the closed position. The waste bag is then closed with the lid device and the interior of the bag is only in contact with the lid device (and the bag itself).

According to the invention, two embodiments are preferred. In the first, the lid device comprises at least one insertion flap and one insertion funnel, the latter being arranged between the container and the insertion flap. In this, a closure device is preferably present which can close the container at the level of its opening. The first embodiment is shown, for example, in Figures 1 , 2 , 3 , 17 , 27 and 18 In the second embodiment, the lid device does not include a funnel, but rather the flap forms more or less directly the lid for the container. The second embodiment is shown in Figures 12 , 13 , 14 , 16 and 24 to 26 illustrated. These embodiments are described in more detail below.

In the first embodiment, the lid device has at least one insertion funnel, which optionally has the second seal at the tapered (lower, facing the container opening) end, and an insertion flap that closes the insertion funnel at the wider (upper) end, preferably airtight. In this embodiment, the insertion funnel is preferably made of the same material as the container. The insertion flap closes the wider, typically upward-facing opening of the insertion funnel. The insertion flap is typically configured so that it can be brought into an open state, preferably due to user interaction with the device, e.g. due to actuation of a button, a step bar, or touching a control panel (touch screen). When the insertion flap is open, access to the interior of the insertion funnel and the opening of the container is typically free. When a waste bag is inserted, it can thus be filled. The insertion flap can also be brought into a closed state. In the latter, the flap closes the upwardly directed, wider opening of the feed hopper, preferably in a light-tight manner. For this purpose, a (fourth) seal is located on the feed hopper flap or on the corresponding opposite side, i.e. on the wide opening of the feed hopper. The latter seal extends around the upwardly directed, wider opening of the feed hopper to ensure that the feed hopper is hermetically sealed by the feed hopper flap. Preferably, the lid device has a lock that interacts with the feed hopper flap and is able to releasably hold the feed hopper flap in the closed state. This ensures that the container is securely and tightly sealed by the feed hopper flap.

In a preferred embodiment, the insertion flap forms part of the upper end of the device according to the invention. In this embodiment, the device according to the invention is thus a waste bin that can be filled from above.

In a preferred embodiment, the lid device has a feed funnel and a closure device, preferably closure flaps, inside the funnel. The closure device, preferably the closure flaps, are configured to essentially close the opening of the feed funnel at its tapered end (the lower end facing the container opening) when the feed flap is closed. If a waste bag is placed in the container, the latter is optionally covered as described below, and the waste is mechanically compressed, it would be pressed into the feed funnel. The closure device can prevent this. The latter is thus closed before mechanical compression, and if necessary, the The closure device is always closed as soon as the flap is closed. In order to mechanically strengthen the closure device, preferably the closure flaps, against the mechanical pressure (with which the waste is compressed in the container), locking devices can be provided for the closure device, preferably the closure flaps. These locking devices can prevent the closure device from being forced open by the mechanical pressure.

In the second embodiment, the device according to the invention does not have a funnel; instead, the flap forms the immediate lid of the container, which also carries the second seal. The latter thus directly closes the opening of the container. In this embodiment, the flap preferably does not form part of the upper end of the device according to the invention. Rather, in this embodiment, the container can preferably be extended out of the device and then accessed for throwing in waste. In this embodiment, the device according to the invention is thus a waste bin that can be filled by extending the container, e.g. as a mobile waste bin that can be pushed under a table and whose container extends out of the housing for filling.

According to the invention, the lid device has a suction opening which is arranged on/in the lid device in such a way that, in the closed position, the gaseous atmosphere can be at least partially sucked out from the interior of a waste bag placed in the container by means of the means for generating negative pressure. As explained above, the lid device is configured in such a way that, in the closed position, the waste bag is clamped and sealed between the first seal and the second seal, and optionally the means for fixing a waste bag. The waste bag is thus closed with the lid device and the interior of the bag is only in contact with the lid device (and the bag itself). The gaseous atmosphere (of the bag) can thus be drawn out of the waste bag through the suction opening on the lid device. The negative pressure required for this is provided by the means for generating negative pressure, as defined below. A liquid sensor is preferably provided on the lid device next to or in the suction opening. The latter allows the suction process to be stopped in the event that liquids from the waste bag reach the lid device or are sucked out, in order to protect the components of the device from becoming contaminated.

In the alternative embodiment in which the device according to the invention has no insertion funnel, and rather the insertion flap forms the lid, which also second seal, the suction opening can be located on the feed flap.

The device according to the invention also has means for generating compressed air. Suitable means, e.g. pumps or compressors, are known in the art. The compressed air that can be generated preferably has at least 1.0 ^∗ 10 ⁵ Pa (100 kPa, 1 bar) overpressure, preferably at least 2.0 ^∗ 10 ⁵ Pa (200 kPa, 2 bar) overpressure. The compressed air can be used for introducing, via the inlet opening, into the container interior, as well as for the means for moving the base plate, provided that it is an air-operated means, e.g. pneumatic cylinders or bellows.

The device according to the invention also has means for generating negative pressure. Suitable means, e.g. vacuum pumps, are known in the art. The negative pressure that can be generated is preferably at least 5.0 ^∗ 10 ⁴ Pa (50 kPa, 500 mbar) absolute pressure, preferably at least 2.0 ^∗ 10 ⁴ Pa (20 kPa, 200 mbar) absolute pressure. The vacuum pump must therefore be able to generate an absolute pressure of 500 mbar, preferably 200 mbar, in the container interior, and thus in the waste bag. The negative pressure is used to suck the gaseous atmosphere out of the waste bag. The device preferably has suitable means, e.g. a negative pressure hose, to guide the negative pressure to the lid device, and in particular to the suction opening on the lid device (in particular on the insertion flap, e.g. if this is arranged directly as a lid). Preferably, the means for generating negative pressure comprise a filter, preferably a carbon filter, and/or a liquid sensor. The latter enables the suction process to be stopped in the event that liquids are sucked out of the waste bag in order to protect the components of the device from contamination.

In one embodiment, the means for generating compressed air and the means for generating negative pressure are separate structural units, for example a compressor and a separate vacuum pump. In a preferred embodiment, the means for generating compressed air and the means for generating negative pressure are implemented in a means for generating compressed air and negative pressure, i.e. combined in a structural unit of the device according to the invention. For example, the exhaust air from a vacuum pump can be used directly as compressed air according to the invention. The means for generating compressed air and negative pressure is therefore preferably a combined vacuum/compressed air pump. Suitable vacuum pumps in which the exhaust air can also be used directly as compressed air are known in the art, e.g. diaphragm pumps.

The device according to the invention further comprises means for thermal welding of a waste bag placed in the container. The means can be located at the opening of the container and/or on the lid device. Suitable means for thermally welding plastic bags, such as waste bags made of PE (polyethylene), PP (polypropylene) or PLA (polylactide) are known in the art. Thermal welding is understood to be a process in which plastic films are first heated and then pressed together under pressure so that they are permanently connected. Typical means for thermal welding are heating electrodes, in particular strip electrodes, as known in the art and commercially available. Typically, an edge band or wire is used. Depending on the process, appropriate welding temperatures are used, something in the range of 80°C to 140°C, e.g. approx. 80°C for thermoplastics such as PP and PE, and up to 140°C for PLA films. Suitable welding times are from approx. 0.1 to 5 seconds, preferably approx. 0.5 to 3 seconds. The duration of the welding is preferably temperature-controlled; the temperature control is determined, as is known in the art, via the electrical resistance of the edge band or wire. This ensures a duration sufficient for complete, tight welding. Suitable parameters, such as the dimensioning of the edge band or wire and the power supply, for thermal welding of plastic films are known in the art. The edge band or wire is preferably coated with a PTFE layer to prevent the plastic film from sticking. The means located at the opening of the container and/or on the lid device are arranged such that, when the lid device is in the closed position, a waste bag stretched over the opening of the container can be closed and welded to a corresponding part of the bag, for example a folded-over flap of the bag, or a separate part if the flap or the separate part is placed over the opening. Preferably, the means for thermal welding, in particular the strip electrodes, are arranged substantially parallel to the first and second seals, either respectively on the lid device and/or on the container opening. The means for thermal welding are preferably arranged all the way around the container opening to ensure complete closure of the waste bag. This can be achieved by means for thermal welding, in particular the strip electrodes, which are arranged on the lid device substantially parallel to the second seal, or on the container opening substantially parallel to the first seal, in each case all the way around (the container opening). Insofar as the means for thermal welding, in particular the strip electrodes, are arranged both partly on the lid device essentially parallel to the second seal and partly on the container opening essentially parallel to the first seal, it is sufficient and It is preferred that the means are arranged together essentially all the way around the container opening, i.e. together they ensure a full circuit. A full circuit is ensured if there is at least a small overlap of the opposing means, i.e. on the one hand on the lid device essentially parallel to the second seal, and on the other hand on the container opening essentially parallel to the first seal. This ensures that the waste bag is completely closed. With regard to the first and second seals, the arrangement of the means for thermal welding, in particular the strip electrodes, is preferably within the respective area spanned by the seals.

The mobile device of the present invention is typically designed as a free-standing unit, i.e. it is provided with side panels and optionally a preferably hinged cover, including the insertion flap. In one embodiment, the cover and/or the insertion flap swings open or to the side when a trigger, for example a foot pedal or push button, is actuated. Typically, at least the side parts, and optionally also the rear of the device, are provided with parts of an external panel, in particular on the sides and rear, in order to prevent access to the movable components and the technology and to protect the latter.

The device of the invention is designed as a mobile device, i.e. it comprises means for moving the device, i.e. no rigid foot or feet. Rather, means for moving the device, preferably wheels, rollers, ball rollers or rollers, are provided, which enable the device to be moved essentially horizontally over essentially flat floors. Suitable means for moving are known in the art and are commercially available. If necessary, the means for moving can be deactivated, preferably retractable and/or foldable. As a mobile unit, the device can be provided with a mobile power supply, for example batteries or most preferably with rechargeable batteries. This enables maximum mobility of the device while maintaining functionality.

The device according to the invention can thus be used advantageously as a free-standing waste container, which can be moved to different locations if necessary, in particular in the home, for leisure time or in the office.

In one embodiment, the device according to the invention has means for separating the separate part of a film with which the opening of the container and thus the inserted waste bag is covered. Such means, for example a cutting or Tear edges, preferably a cutting electrode, are known in the art. The latter are essentially the same electrodes as those used for welding as described above, only the welding time and/or temperature is increased so that the film material is separated. Typical temperatures are about 140°C to about 150°C for a period of about 1.5 to 3 seconds.

The device according to the invention is basically suitable for use with various waste bags. Preferably, thermally weldable plastic bags, such as waste bags, made of polyolefins such as PE (polyethylene) and PP (polypropylene), and polyesters such as PLA (polylactide) are used for the device according to the invention and in the method according to the invention. Preferably, weldable plastic bags are used, in particular weldable biopolymer/bioplastic bags made of biodegradable PLA film, as are known in the art and commercially available (for example "Planova PLA 50" from SÜDPACK Verpackungen GmbH & Co. KG, Ochsenhausen, Germany), or 100% biodegradable biopolymer/bioplastic bags based on renewable raw materials (for example Deiss Bioline made of ecovio ^® , EMIL Deiss KG (GmbH + Co.), Hamburg, Germany). Preferably, the raw materials of the waste bag films are compostable according to EN 13432 and/or DIN CERTCO / DIN CERTCO Plus.

In a preferred embodiment, the device according to the invention further comprises means for perforating a waste bag on the lid device, in particular at the lower end of the insertion funnel or on the insertion flap, provided that this serves directly as a lid for the container. These are typically arranged within the area spanned by the second seal, in particular on the part of the insertion funnel/the insertion flap facing the container, so that the perforation is possible within the area spanned by the second seal. The means are also typically arranged outside the area spanned by the means for thermal welding. As soon as a waste bag that is stretched over the opening of the container is closed with a corresponding part of the bag, for example a folded-over flap of the bag, or a separate part if the flap or the separate part is placed over the opening, according to the invention it is pressed mechanically and/or compressed air is pressed into the container and/or the gaseous atmosphere is sucked out of the interior of the bag in order to compress the waste bag. However, since the waste bag is already closed by pressing on a corresponding part of the bag, for example a folded-over flap of the bag, or a separate part, by placing the flap or the separate part over the container opening, and by means of When the lid and the second seal are pressed into the closed position, air can no longer escape from the inside of the bag. For this purpose, the means for perforating a waste bag creates a defined "outlet opening" on the waste bag, preferably on the cover, i.e. for example a folded-over flap of the bag, or on the separate part. Suitable means for perforating a waste bag are, for example, one or more spikes or cut edges. The means for perforating a waste bag can preferably be used in a controlled manner, i.e. not permanently active, and can preferably be activated electrically. For example, they are one or more electrically extendable spikes or one or more electrically extendable blades, which then retract again. This can be activated before a pressing or suction step. Subsequent retraction of the means has the advantage of reducing the risk of injury when changing the waste bag. In a preferred embodiment, the means for perforating a waste bag is arranged in or near the suction opening, or is perforated by the suction opening.

In a preferred embodiment, the device according to the invention comprises means for fixing the cover of the waste bag. Before the waste bag is vacuumed or welded, a corresponding part of the bag, for example a folded-over flap of the bag, or a separate part, is placed over the container opening. In order to prevent this part, referred to here as the cover, from slipping, the device according to the invention comprises means for fixing the cover of the waste bag, typically one or more clamps or tensioning strips. These are preferably positioned on the front of the container, e.g. below the container opening. Preferably, the means for fixing the cover of the waste bag, typically one or more clamps or tensioning strips, interacts with spikes for fixing the cover of the waste bag. The latter are, for example, also positioned on the front of the container below the container opening. Preferably, safety switches are present, for example also on the front of the container, for example below the container opening, which are arranged so that they interact with the cover of the waste bag, e.g. are triggered by contact with it. The safety switches allow you to check whether the waste bag cover has been correctly placed. A sealing or cutting step should only be carried out in the latter case.

In a preferred embodiment, the device according to the invention further comprises means for irradiating the interior of the container with UV light (380 to 100 nm), in particular UV-C light (280 to 100 nm), on the lid device, preferably on the insertion flap. Irradiation of waste with UV light, in particular UV-C light, reduces and inactivates harmful microorganisms, thereby reducing putrefaction and other metabolic processes, and thus reducing odor formation. Suitable light sources for generating UV light, in particular UV-C light, are known in the art, for example UV LEDs. The lid device preferably also comprises a protective device for the means for irradiating the interior of the container, preferably on the insertion flap, in particular when not in use. Suitable protective devices would be, for example, a rotatable or pivotable shield or cover for the UV lamp. In certain embodiments, the insertion flap serves as a counter-pressure surface when the waste bag is mechanically compressed. The protective device is therefore preferably configured in such a way that it moves in front of the means for irradiating the interior of the container, for example folds out or remains unfolded, and folds back when irradiated, preferably only when irradiated, and thus clears the beam path to the interior of the container. The closure device, which directly covers the container opening, can be open here. Preferably, the unfolded protective device forms essentially a plane with the side surface of the lid which is directed towards the container, ie preferably with the underside of the insertion flap. The protective device can prevent both contamination and damage to the irradiation agent, in particular during pressing or when the insertion flap is open.

The present invention further relates to a method for collecting and compacting waste, comprising a) the step of sucking out part of the gaseous atmosphere from a waste bag containing waste, b) simultaneously mechanically compressing the waste bag and c) simultaneously applying external air pressure to the waste bag. According to the invention, three means are used to reduce the volume of waste: firstly, sucking out the gaseous atmosphere from the waste bag, secondly, mechanical compression, which serves to assist in the removal of the gaseous atmosphere and, above all, enables higher pressures to be applied to the waste, since only the pressure of the air column of 1 bar (10 ⁵ Pa) acts during suction, and finally, thirdly, the action of compressed air on the outside of the waste bag. The latter thus enables pressing from "all directions". According to the invention, these measures a), b) and c) are carried out simultaneously at least at one point in the process.

The pressures used in process steps a), b) and c) preferably correspond to those provided for the device described above. Thus, in step a), a negative pressure of at least 5.0 ^∗ 10 ⁴ Pa (50 kPa, 500 mbar) absolute pressure, preferably at least 2.0 ^∗ 10 ⁴ Pa (20 kPa, 200 mbar) absolute pressure, is preferably generated. In step b), the waste bag is preferably subjected to a pressure force of about 50 kPa to about 1000 kPa, more preferably about 100 kPa to about 800 kPa, in particular from about 300 kPa to about 600 kPa. In step c), the waste bag is preferably subjected to compressed air of at least 1.0 ^∗ 10 ⁵ Pa (100 kPa, 1 bar) overpressure, preferably at least 2.0 ^∗ 10 ⁵ Pa (200 kPa, 2 bar) overpressure. The device according to the invention is preferably configured to enable these pressures for steps a), b) and c), in particular simultaneously.

Preferably, in the method according to the invention, before steps a), b) and c) of simultaneous suction, mechanical pressing and air pressure, i.e. before the step of suctioning a part of the gaseous atmosphere from a waste bag containing waste, while simultaneously mechanically compressing the waste bag and applying external air pressure to the waste bag, a step is first carried out in which only the waste bag is mechanically compressed, preferably followed by additional suction of a first part of the gaseous atmosphere from a waste bag, i.e. without applying compressed air. According to the invention, the waste bag is therefore preferably first mechanically compressed, then preferably additional suction is carried out, before most preferably the waste bag is also subjected to air pressure.

Preferably, in the method according to the invention, before the step of sucking out part of the gaseous atmosphere from a waste bag containing waste, while simultaneously mechanically compressing the waste bag and applying external air pressure to the waste bag, the waste bag is closed and sealed by means of a "part of the waste bag or a separate part of the waste bag" (sometimes also referred to as just a "part") by pressing the part on. Since no more air can now escape from the waste bag, the cover is perforated at one point, as described above. The gaseous atmosphere can now escape through the perforation opening and, if necessary, part of the gaseous atmosphere can be sucked out of the waste bag.

After the reduction of the waste volume according to the invention by pressing and suction, a step of closing the waste bag by thermal welding to the cover typically follows, preferably during or (immediately) after the suction of part of the gaseous atmosphere from the waste bag.

According to the invention, as described in detail above, the device according to the invention is advantageously used for the method according to the invention, therefore the method according to the invention is carried out using the device according to the invention as described above described. In particular, the movable base plate enables mechanical compression of the waste bag, wherein it can be moved relative to the side walls in the direction of the lid, which is in the closed position, and thus the volume of the container can be reduced. The lid device then sucks part of the gaseous atmosphere out of a waste bag containing waste, preferably while maintaining the mechanical pressure through the base plate. Finally, compressed air, which is provided by the means for generating compressed air, is pressed in through the inlet opening of the container, e.g. controlled by means of an inlet valve, preferably while maintaining the pressure through the base plate and/or while maintaining the suction, and thus the waste bag is additionally compressed. This achieves maximum compression of the waste. Finally, the waste can be sealed in the waste bag and disposed of.

• Figur 1 zeigt eine schematische Ansicht einer erfindungsgemäßen Vorrichtung.
• Figur 2 zeigt eine schematische Ansicht einer erfindungsgemäßen Vorrichtung mit teilweise geöffneter Deckelvorrichtung.
• Figur 3 zeigt eine schematische Ansicht einer erfindungsgemäßen Vorrichtung mit ausgefahrenen Containern.
• Figur 4 zeigt eine schematische Ansicht zweier Container einer erfindungsgemäßen Vorrichtung.
• Figur 5 zeigt eine schematische Ansicht zweier Container einer erfindungsgemäßen Vorrichtung mit geöffneten Spannrahmen.
• Figur 6 zeigt eine schematische Ansicht der Rückseite zweier Container einer erfindungsgemäßen Vorrichtung.
• Figur 7 zeigt eine Detailansicht zweier Container einer erfindungsgemäßen Vorrichtung.
• Figur 8 zeigt eine schematische Ansicht zweier Container einer erfindungsgemäßen Vorrichtung ohne Seitenwand des Containers.
• Figur 9 zeigt eine schematische Ansicht zweier Container einer erfindungsgemäßen Vorrichtung ohne Seitenwand des Containers und ohne Bodenplatte.
• Figur 10 zeigt eine schematische Ansicht zweier Container einer erfindungsgemäßen Vorrichtung ohne Seitenwand des Containers mit ausgefahrenem Mittel zum Verschieben der Bodenplatte.
• Figur 11 zeigt eine schematische Ansicht zweier Container einer erfindungsgemäßen Vorrichtung ohne Seitenwand des Containers mit ausgefahrenem Mittel zum Verschieben der Bodenplatte ohne Bodenplatte.
• Figur 12 zeigt eine schematische Ansicht zweier Deckel einer erfindungsgemäßen Vorrichtung im ausgefahrenen Zustand.
• Figur 13 zeigt eine Detailansicht zweier Deckel einer erfindungsgemäßen Vorrichtung.
• Figur 14 zeigt eine Detailansicht zweier Deckel einer erfindungsgemäßen Vorrichtung von der Rückseite.
• Figur 15 zeigt eine Aufsicht einer erfindungsgemäßen Vorrichtung.
• Figur 16 zeigt einen Schnitt A-A wie in Figur 15 angedeutet.
• Figur 17 zeigt einen Schnitt A-A wie in Figur 15 angedeutet für eine alternative Ausführungsform.
• Figur 18 zeigt eine Detailansicht B aus dem Schnitt A-A von Figuren 16 und 17.
• Figur 19 zeigt eine Detailansicht C aus dem Schnitt A-A von Figuren 16 und 17.
• Figur 20 zeigt eine Detailansicht B aus dem Schnitt A-A von Figuren 16 und 17.
• Figur 21 zeigt eine Detailansicht C aus dem Schnitt A-A von Figuren 16 und 17.
• Figur 22 zeigt eine Detailansicht zweier Container einer erfindungsgemäßen Vorrichtung.
• Figur 23 zeigt eine Detailansicht zweier Container einer erfindungsgemäßen Vorrichtung.
• Figur 24 zeigt einen Schnitt durch die erfindungsgemäße Vorrichtung von Figur 23.
• Figur 25 zeigt eine Detailansicht aus Figur 24.
• Figur 26 zeigt eine Detailansicht aus Figur 24.
• Figur 27 zeigt drei schematische Ansichten einer erfindungsgemäßen Vorrichtung mit geschlossener Einwurfklappe (A), geöffneter Einwurfklappe (B) und teilweise geöffneter Deckelvorrichtung (C).
• Figur 28 zeigt eine schematische Ansicht einer erfindungsgemäßen Vorrichtung mit ausgefahrenem Container.
• Figur 29 zeigt einen Schnitt durch eine erfindungsgemäße Vorrichtung.
• Figur 30 zeigt die Detailansichten A und B aus Figur 29.

The invention will now be described with reference to the drawings.

• Figure 1 shows a schematic view of a device according to the invention.
• Figure 2 shows a schematic view of a device according to the invention with a partially opened lid device.
• Figure 3 shows a schematic view of a device according to the invention with extended containers.
• Figure 4 shows a schematic view of two containers of a device according to the invention.
• Figure 5 shows a schematic view of two containers of a device according to the invention with opened clamping frames.
• Figure 6 shows a schematic view of the rear side of two containers of a device according to the invention.
• Figure 7 shows a detailed view of two containers of a device according to the invention.
• Figure 8 shows a schematic view of two containers of a device according to the invention without side wall of the container.
• Figure 9 shows a schematic view of two containers of a device according to the invention without side wall of the container and without base plate.
• Figure 10 shows a schematic view of two containers of a device according to the invention without a side wall of the container with extended means for moving the base plate.
• Figure 11 shows a schematic view of two containers of a device according to the invention without a side wall of the container with extended means for moving the base plate without a base plate.
• Figure 12 shows a schematic view of two covers of an inventive Device in the extended state.
• Figure 13 shows a detailed view of two covers of a device according to the invention.
• Figure 14 shows a detailed view of two covers of a device according to the invention from the rear.
• Figure 15 shows a plan view of a device according to the invention.
• Figure 16 shows a section AA as in Figure 15 indicated.
• Figure 17 shows a section AA as in Figure 15 indicated for an alternative embodiment.
• Figure 18 shows a detailed view B from section AA of Figures 16 and 17 .
• Figure 19 shows a detailed view C from section AA of Figures 16 and 17 .
• Figure 20 shows a detailed view B from section AA of Figures 16 and 17 .
• Figure 21 shows a detailed view C from section AA of Figures 16 and 17 .
• Figure 22 shows a detailed view of two containers of a device according to the invention.
• Figure 23 shows a detailed view of two containers of a device according to the invention.
• Figure 24 shows a section through the device according to the invention of Figure 23 .
• Figure 25 shows a detailed view of Figure 24 .
• Figure 26 shows a detailed view of Figure 24 .
• Figure 27 shows three schematic views of a device according to the invention with closed insertion flap (A), open insertion flap (B) and partially opened lid device (C).
• Figure 28 shows a schematic view of a device according to the invention with an extended container.
• Figure 29 shows a section through a device according to the invention.
• Figure 30 shows the detailed views A and B from Figure 29 .

A device (1) according to the invention is Figure 1 shown, here designed with two insertion flaps (33) in the lid device (7) for two separate containers, with front cover, control element (designed as a touch screen) and baseboard, e.g. suitable as a mobile, free-standing waste bin. The left side cover is not shown, which allows a view of the means for moving the device (31), here designed as wheels. Preferably, the device is designed in such a way that the insertion flaps (33) open, for example by tapping or touching the control panel, in order to provide access to the containers with waste bags inside for inserting the waste. The opening of the insertion flaps (33) can be achieved via corresponding hinges, as in Figure 27 B illustrated. The re-closing of the insertion flaps (33) can be done manually or automatically, eg by tapping or touching the control panel.

Figure 2 shows a device (1) according to the invention with a partially opened cover device (7), here also designed as a free-standing waste bin with a front cover and baseboard that is mobile due to the means for moving the device (31). The possibility of opening the cover plate together with the insertion flaps (33) separately from the insertion funnels (32) (for example by means of suitable hinges) and thus separating the latter components results in advantageous access to the components for servicing and cleaning.

Figure 3 shows a device (1) according to the invention, as in Figure 1 shown. The middle part, which includes the container unit, is shown pulled out using the side pull-out rails. The upper part with the operating element, which includes the lid device, is shown in the closed state. The container unit includes two containers (2). In the embodiment with insertion flaps (33), the middle part can be extended, for example to cover the waste bags for sealing, to remove the sealed waste bag, or to place an empty waste bag in the container (2). In this embodiment, the waste bag is normally filled by opening the insertion flaps (33) with the middle part retracted.

Figure 4 shows a detailed view of the containers of the device according to the invention (1). The containers are essentially formed from the side walls (3) and the container floor (not visible here). The movable floor plate (4) is located inside the container. The first seal (5) is provided at the opening (6) of each container. The means for thermal welding (11) are designed as strip electrodes on the openings (6), but here only around a third of the circumference of the openings (6). The corresponding electrodes on the lid device, not shown here (see Fig. 12 ), complete the means for thermal welding (11) to completely surround the openings. This ensures that the waste bag is completely sealed when welding. Alternatively, the strip electrodes can also be designed to completely surround the container opening. The control for the means for thermal welding (11a) supplies the means for thermal welding (11) at the opening (6) or the lid device (7). The seal on the base plate (13) (also referred to as the "third seal") seals the base plate (4) against the side walls (3) in every position, in an embodiment described in detail above, airtight, preferably at least to prevent dirt from getting under the base plate (4). When the opening (6) of the container is closed, it is thus sealed by the side walls (3) (these are also airtight) and either by the base plate (4), or at least by the container floor (18) (not shown here, see e.g. Fig. 9 ), hermetically sealed. About The controlled inlet valve for compressed air (16) allows compressed air to enter the interior of the container through the inlet opening (15). This compressed air is used to compress the waste in the waste bag arranged inside the container (and above the base plate) when the lid device is in the closed position and presses the waste bag against the first seal (5). In the event that the seal (13) is airtight, the compressed air is introduced into the interior of the container above the base plate. The fixing means (17), here designed as a clamping frame and shown in the closed state, encloses the opening (6) on the outside and, when a waste bag (not shown here) is inserted (with the clamping frame open), can clamp it and thus fix it to the container. The fixing means (17) only partially covers the first seal (5), here at the end of the opening (6) shown at the front in the figure. In this area, the means for fixing (17), according to a preferred embodiment of the present invention, serves to form a recess for perforation (25). A waste bag inserted with the clamping frame (17) open is stretched over the first seal (5) by means of the clamping frame. Without the recess for perforation (25), which is preferably formed by the clamping frame covering the first seal (5), the cover (a part of the waste bag or a separate part) and the waste bag would lie directly on top of each other when the waste bag is covered for welding, so that the means for perforation (21) could not perforate the cover or could only selectively perforate the cover under certain circumstances. The recess for perforation (25) thus protects the waste bag from the means for perforation (21), the latter can thus only perforate the cover in order to allow the gaseous atmosphere to be sucked out and/or the gaseous atmosphere to escape from the interior of the waste bag. This will be explained in more detail in Figure 18 described.

Figure 5 shows a detailed view of the containers (2) of the device (1) according to the invention according to Figure 4 , only the means for fixing (17), designed here as a clamping frame, is shown in the open state. In this state, a waste bag (not shown here) can be inserted into the interior of the container through the opening (6).

Figure 6 shows a detailed view of the containers (2) of the device (1) according to the invention from the rear. The containers (2) comprise the side walls (3) and the container floor (not visible here) and have the openings (6). The means for fixing (17), here designed as a clamping frame and shown in the closed state, encloses the opening (6) on the outside and, when a waste bag (not shown here) is inserted (with the clamping frame open), can clamp it and thus fix it to the container. For advantageous use of the space in the device (1) according to the invention, the means (9) for generating compressed air, here indicated as a compressor, as well as the means (10) for generating negative pressure, indicated here as a vacuum pump, is arranged in the container unit of the device behind the containers. Alternatively, according to the invention, both components, ie the means (9) for generating compressed air, e.g. a compressor, and the means (10) for generating negative pressure, e.g. a vacuum pump, can be implemented in one component, e.g. in the form of a diaphragm pump, which can deliver both negative pressure and positive pressure. The activated carbon filter (19) is mounted above the vacuum pump. The control for the means for thermal welding (11a) is arranged below the compressor.

Figure 7 shows a detailed view of the interior of a container (2) of the device (1) according to the invention. The area of the container (2) in which the waste bag can extend is delimited by the side walls (3) and the movable base plate (4), shown here in the "raised" state. The first seal (5) is provided at the opening (6) of the container, as well as the means for thermal welding (11). The seal on the base plate (13) seals the base plate (4) against the side walls (3), either airtight, preferably at least to prevent dirt from getting under the base plate (4). The means for fixing (17) only partially covers the first seal (5), here at the end of the opening shown at the front in the figure. In this area, according to a preferred embodiment of the present invention, the means for fixing (17) also serves to form the recess for the perforation (25).

Figure 8 shows a detailed view of the interior of a container (2) of the device (1) according to the invention. The containers are essentially formed from the side walls (3) (front side wall is not shown) and the container floor (18). The area of the container (2) in which the waste bag can extend is delimited by the side walls (3) and the movable base plate (4), shown here in the "lowered" state. The seal on the base plate (13) seals the base plate (4) from the side walls (3), either airtight, preferably at least to prevent dirt from getting under the base plate (4). According to the invention, the means for moving the base plate (14) preferably comprises both thrust elements, here designed as air bellows, which can move the base plate (4) towards the lid, and return elements, here designed as spiral springs.

Figure 9 shows a detailed view of the interior of a container (2) of the device (1) according to the invention according to Figure 8 . The containers are essentially made up of the side walls (3) (front side wall is not shown) and the container floor (18). The floor plate (4) is compared to Fig. 8 not shown. The means for moving the base plate (14), shown here in the "lowered" state, preferably comprise according to the invention both thrust elements, here designed as air bellows, which are connected by means of a holder and can move the base plate (4) towards the cover, and return elements, here designed as spiral springs.

Figure 10 shows a detailed view of the interior of a container of the device (1) according to the invention Figure 8 , however, the movable base plate (4) is brought into the "raised" state by the means for moving the base plate (14). According to the invention, the means for moving the base plate (14) preferably comprises both thrust elements, here designed as air bellows, which can move the base plate (4) towards the lid, and return elements, here designed as spiral springs. The latter are tensioned in the "raised" state and enable the base plate to be returned, for example after the container has been emptied, ie after the pressed and welded waste bag has been removed.

Figure 11 shows a detailed view of the interior of a container (2) of the device (1) according to the invention according to Figure 10 The means for moving the base plate (14) is shown in the "raised" state, the base plate is not shown.

Figure 12 shows a detailed view of the cover device (7) of the device (1) according to the invention, here in the extended state by means of pull-out rails (e.g. for service purposes). In the embodiment shown (described here as the second embodiment), the insertion flaps are provided directly above the container opening and serve as rigid covers of the cover device as soon as the containers are inserted; an insertion funnel is not present. The cover device (7) comprises the second seal (8), which interacts with the first seal (5) on the container opening (not shown here) in the closed position. The means for thermal welding (11) are designed as strip electrodes, but only around two thirds of the circumference of the opening. The corresponding electrodes on the container opening, not shown here (see e.g. Fig. 4 ), the means for thermal welding (11) complete the complete circuit around the opening of the container. This ensures that the waste bag is completely sealed during welding. The atmosphere can be extracted from the waste bag through the suction openings (12).

Figure 13 shows a detailed view of the cover device (7) of the device (1) according to the invention in the embodiment according to Figure 12 , shown here from below in the direction of the container. In the embodiment shown, the insertion flaps are provided directly above the container opening, there is no insertion funnel. The Lid device (7) comprises the second seal (8), which interacts with the first seal (5) at the container opening (not shown here) in the closed position. The means for thermal welding (11) are designed as strip electrodes, but only around two thirds of the circumference of the opening. The atmosphere can be sucked out of the waste bag through the suction opening (12). The suction opening (12) also houses the means for perforation (21). The protective device (20) can be folded away during operation, thereby freeing up optical access of the means for irradiation, typically a UV lamp, to the interior of the container. The light from the UV lamp can thus reach the interior of the container as soon as the protective device (20) has been moved aside, e.g. rotated or pushed. In the closed state, the protective device (20) essentially forms a plane with the side surface of the lid device (7), which is directed towards the container in the closed position.

In the embodiment shown, in which the insertion flaps are provided directly above the container opening and an insertion funnel is not present, the cover device (7) of the device (1) according to the invention remains in the retracted state during normal operation of the device, as in Figures 1 In this embodiment, the container unit as shown in Fig. 3 shown, extended, and after the waste has been deposited, retracted as shown in Fig. 1 shown, retracted. In the retracted state, the second seal (8) is normally lowered so that the second seal (8) interacts with the first seal (5) at the container opening in the closed position and seals the waste bag. This prevents odor nuisance from the waste. In addition, after the container unit is retracted, the waste can be irradiated by the means for irradiating the interior of the container with UV light. In one embodiment, each time the container unit is retracted, irradiation takes place after the waste has been introduced and/or part of the atmosphere is sucked out of the waste bag.

Figure 14 shows a detailed view of the lid device (7) of the device (1) according to the invention, here shown from above and in the embodiment in which the insertion flaps are provided directly above the container opening and an insertion funnel is not present. The atmosphere can be extracted from the waste bag through the suction opening (12). The housing, which normally encloses the suction opening, the UV lamp (26) and the protective device (20), is not shown. The waste bag can be perforated through the suction opening (12) by the means for perforation (21), here indicated as a blade that moves across a semicircular cutting area. In the lid, which is shown in the foreground, the UV lamp (26) and the protective device (20) are not visible, only the opening, which is normally made by the protective device (20) is shown.

Figure 15 shows the device (1) according to the invention in the embodiment of Figure 14 schematically from above to show the position of section AA as in Figure 16 shown to illustrate.

Figure 16 shows the section AA from Figure 15 . The cover device (7) is shown in the embodiment in which the insertion flaps are provided directly above the container opening and there is no insertion funnel, the UV lamp (26) and the protective device (20), as well as the container opening. The means for perforation (21), indicated here as a blade, protrudes through the suction opening (12) and perforates the part of the waste bag, or rather the separate part that covers the waste bag. This is explained in more detail in Figures 18 and 20 which covers section B of Figure 16 The side walls (3), the clamping frame (17) and the opening of the container are shown for the container (2). The waste bag is also indicated, as well as the part of the waste bag, or rather the separate part that covers the waste bag and thus spans the container opening. This is explained in more detail in Figures 18 to 21 explained.

Figure 17 shows a section AA according to Figure 16 , but in the (first) embodiment in which the lid device (7) comprises insertion flaps (33) and an insertion funnel (32) for each container. The insertion flap (33) closes the wider, upward-facing opening of the insertion funnel (32). When the insertion flap (33) is open, access to the interior of the insertion funnel (32) and the opening of the container is typically free. If a waste bag is inserted, this can therefore be filled. In the closed state as shown, the insertion flap (33) closes the opening of the insertion funnel (32) in a light-tight manner by means of the (fourth) seal (36). The lid device (7) also has a lock (37) which interacts with the insertion flap (33) and is able to releasably hold the insertion flap (33) in the closed state. This ensures that the container is securely and tightly closed by the insertion flap (33).

The in Figure 17 The lid device (7) shown comprises a funnel (32) and within the funnel a closure device (34) according to a preferred embodiment. The closure device (34) is configured to essentially close the opening of the funnel at its tapered end (lower, facing the container opening) when the flap (32) is closed as shown. If a waste bag (23) is inserted in the container (3) and the latter is as described above and as in the Figure 17 shown with a flap of the waste bag or separate part (24) is covered and if the waste is mechanically compressed, it would be pressed into the feed hopper (32). The closure device (34) prevents this. The latter is thus closed before mechanical compression, if necessary, the closure device (34) is always closed as soon as the feed flap (33) is closed. In order to close the closure device (34), preferably made of closure flaps (see Figure 29 ) against the mechanical pressure (with which the waste is compressed in the container), locks (35) are provided for the closure device (34). These locks (35) can prevent the closure device (34) from being pressed open by the mechanical pressure.

In the Figure 17 In the embodiment shown, the insertion flap (33) also comprises the means for irradiation (26), typically a UV lamp, and the protective device (20). The latter can be folded away during operation, thereby allowing the means for irradiation to have optical access to the interior of the container. The light from the UV lamp can thus reach the interior of the container as soon as the protective device (20) has been moved aside, e.g. rotated or pushed, and the closure device (34) is opened.

In Figure 17 The arrows show the path of the atmosphere when it is extracted from the waste bag. In the embodiment shown, the atmosphere is drawn through the extraction gap (see detail Fig. 18 ) through the suction opening (12) and through the filling funnel (32), in which there is an opening with connection to the means for generating negative pressure (in Fig. 17 bottom left in the filling funnel (32)).

Figure 18 shows section B from Figures 16 and 17 with more details to illustrate the process step of perforating and suctioning. Section B shows the upper edge of the container (2) with the first seal (5) at the opening of the container. The lid device (7) is shown in the closed position, the second seal (8) on the lid device interacts with the first seal (5), here via part of the clamping frame (17) including a corresponding further seal on the clamping frame (17a). The means for thermal welding (11) are arranged on the lid device, here designed as strip electrodes. A waste bag (23) is shown inserted into the container, which lies against the side wall (3) inside the container. The means for fixing the waste bag (17), here designed as a clamping frame, stretches the waste bag over the container opening, in particular over the first seal (5) at the opening of the container. In the case of section B, the clamping frame (17) presses the waste bag (23) directly onto the first seal (5), since here the clamping frame (17), including the further seal on the clamping frame (17a), protrudes over the first seal (5). For areas where the means for Fixing the waste bag (17) does not protrude beyond the first seal (5), as for example in Fig. 4 shown and Fig. 4 discussed, the means for fixing the waste bag (17) merely stretches the waste bag over the first seal (5). In order to close the waste bag when the intended filling level is reached, according to the invention a part, for example a tab of the waste bag, or, preferably, a separate part of the waste bag (24), for example from an endless roll, must be placed over the container opening. This is typically done manually when the container unit is pulled out, but corresponding means can also be provided which automatically position the separate part, for example a tab of the waste bag, or, preferably, a separate part (24), for example from an endless roll, over the container opening. This can also be done for the container unit in the retracted state, as in Fig. 1 After the container unit has been moved into the device (1) according to the invention, which can be carried out manually or automatically, e.g. at the push of a button, Fig. 18 shown, the lid device is brought into the closed position. The second seal (8) of the lid device is pressed onto the clamping frame (17) including a corresponding further seal (17a), and this is pressed onto the first seal (5). For areas where the clamping frame does not protrude beyond the first seal (5), such as in Fig. 4 shown and to Fig. 4 discussed, the tensioning frame merely tensions the waste bag over the first seal (5). Here, the second seal (8) of the lid device is pressed directly onto the first seal (5). In both cases, the second seal (8) of the lid device seals the part of the waste bag, for example a tab of the waste bag, or, preferably, the separate part (24) against the waste bag (23). In this position, the interior of the waste bag is hermetically sealed from the environment. However, this also means that the atmosphere from the interior of the waste bag could not be sucked out in this state, or that the atmosphere from the interior of the waste bag could not escape when the waste bag is compressed. To make this possible, a defined opening is created in the cover of the waste bag by the means for perforation (24). The recess for perforation (25) created by the tensioning frame (17) by covering the first seal (5) enables selective perforation of the covering part of the waste bag, for example a flap of the waste bag, or, preferably, the separate part (24), as in Fig. 18 As shown in section B of the Fig. 18 Also shown, the means for fixing (17), according to a preferred embodiment of the present invention, serves to form a recess for perforation (25). Without the recess for perforation (25), which is preferably formed by the clamping frame while covering the first seal (5), when the waste bag is covered for welding, the cover (a part of the waste bag or a separate part) and the waste bag would lie directly on top of each other, so that the means for perforation (21) cannot selectively only the cover could be perforated. The perforation recess (25) thus protects the waste bag from the perforating means (21), the latter can therefore only perforate the cover. After perforation has taken place, part of the atmosphere can be sucked out of the interior of the waste bag through the suction opening (12), as indicated by the arrow, or part of the atmosphere can escape from the interior of the waste bag when it is compressed, namely through the suction gap (22) that remains between the waste bag (23) and the covering part of the waste bag, for example a tab of the waste bag, or, preferably, the separate part (24).

Figure 19 shows section C from Figures 16 and 17 with more details according to the process step of perforating and suction as in Figure 18 . Detail C shows the upper edge of the container (2) with the first seal (5) at the opening of the container. The lid device (7) is shown in the closed position, the second seal (8) on the lid interacts with the first seal (5). The means for thermal welding (11) are arranged on the container, here designed as strip electrodes. A waste bag (23) is inserted into the container, which rests against the side wall (3) inside the container. The means for fixing the waste bag (17), here designed as a tensioning frame, stretches the waste bag over the container opening, in particular over the first seal (5) at the opening of the container. In order to close the waste bag, according to the invention, a part, for example a tab of the waste bag, or, preferably, a separate part of the waste bag (24), for example from an endless roll, is placed over the container opening. As in Figure 19 , accordingly Figure 18 , the lid device is brought into the closed position. Here, the second seal (8) of the lid device is pressed onto the first seal (5), and the second seal (8) of the lid device seals the part of the waste bag, for example a tab of the waste bag, or, preferably, the separate part (24) against the waste bag (23). In this position, the interior of the waste bag is hermetically sealed from the environment. Between the means for welding (11) and the corresponding opposite counter surface, the suction gap (22) remains between the waste bag (23) and the covering part of the waste bag, for example a tab of the waste bag, or, preferably, the separate part (24).

Figure 20 shows section B from Figures 16 and 17 with more details for the welding process step. As in Fig. 18 the lid device is also shown in the closed position, but lowered further to allow the waste bag to be welded. Here, the lid device is moved further towards the upper edge of the container (2) with the first seal (5), the second seal (8) on the lid continues to interact with the first seal (5), here over part of the clamping frame (17) including a corresponding further seal (17a). The means for thermal welding (11) arranged on the cover device, here designed as strip electrodes, now lie directly on the corresponding counter surface of the container opening, which in Fig. 18 The remaining suction gap (22) is closed. The waste bag (23) placed in the container is thus in contact with the part, for example a tab of the waste bag, or, preferably, a separate part of the waste bag (24), for example from an endless roll, below the means for thermal welding (11) and can be welded to it and thus sealed.

Figure 21 shows section C from Figures 16 and 17 with more details for the welding process step. Compared to Fig. 19 the lid is also in the closed position, but lowered further to allow the waste bag to be welded. Here, the lid device is moved further towards the upper edge of the container (2) with the first seal (5), the second seal (8) on the lid device continues to interact with the first seal (5), here via a part of the clamping frame (17) including a corresponding further seal (17a). The means for thermal welding (11) arranged on the container (2), here designed as strip electrodes, are now in direct contact with the corresponding counter surface of the lid device, which in Fig. 19 The remaining suction gap (22) is closed. The waste bag (23) placed in the container is thus in contact with the part, for example a tab of the waste bag, or, preferably, a separate part of the waste bag (24), for example from an endless roll, above the means for thermal welding (11) and can be welded to it and thus sealed.

Figure 22 shows a section corresponding to the second embodiment of the device according to the invention. The extendable middle part, fixed by the lateral extension rails, comprises the container unit, here two containers, shown in the extended state with the front cover slightly folded down. In the embodiment shown, the means for thermal welding (11) are designed all the way around the opening of the container, which is preferred according to the invention. In the container shown in the foreground, the opening of the container is covered by a separate part of the waste bag (24) and is thus shown closed. The separate part of the waste bag (24) comes as in the Figure 22 represented by a roll (30) (endless roll) which stores several parts of the waste bag (24) intended to cover the waste bag. The roll (30) is preferably arranged at the rear end of the container, ie at the end of the container further away from the front cover. As in the Fig. 22 In the state shown, the roller (30) is preferably arranged such that, In order to close the waste bag, according to the invention a separate part of the waste bag (24) can be unrolled from the roll (30) and placed over the container opening. The part of the waste bag (24) can then be fixed by the means for fixing the cover of the waste bag (27), here designed as a foldable frame on the front of the container. In this case, the means for fixing the cover of the waste bag (27) presses the part of the waste bag (24) preferably onto mandrels for fixing the cover of the waste bag (27a). Means for separating (29), here designed as a cutting electrode, are typically present between the roll (30) and the opening of the container. Alternatively, the means for separating (29) can also be designed as a tear-off edge. Safety switches (28) are preferably arranged such that they are activated when the part of the waste bag (24) is correctly placed on the opening of the container. This arrangement allows that as soon as the part of the waste bag (24) which will close the waste bag is placed over the opening of the container, the part (24) can be fixed by the means for fixing the cover of the waste bag (27), the safety switches (28) being activated when the part (24) is correctly placed on the opening of the container. The waste bag can then be welded all the way around to the opening of the container by the means for thermal welding (11) and thus closed and, preferably after the waste bag has been welded, the part (24) can be separated from the roll (30) by the means for separating (29). Finally, the welded waste bag can be removed from the container after the means for fixing the cover (27) and the means for fixing the waste bag (17) have been opened.

Figure 23 shows the section of a preferred device according to the invention according to Figure 22 . In the container shown in the foreground, the opening of the container is covered and closed by a separate part of the waste bag (24). In comparison to Fig. 21 the means for fixing the cover of the waste bag (27), here designed as a folding frame on the front of the container, is shown closed. The part of the waste bag (24) is thus fixed. In this case, the means for fixing the cover of the waste bag (27) presses the part of the waste bag (24) preferably onto mandrels for fixing the cover of the waste bag (27a) and activates the safety switches (28) (not shown here).

Figure 24 shows a section through a device according to the invention in the embodiment according to Figure 16 . In the container shown, the opening of the container is covered by a separate part of the waste bag (24) and the inserted waste bag (23) is shown closed with it. The separate part of the waste bag (24) comes, as shown in the figure, from a roll (30) (endless roll) which has several Parts of the waste bag (24) intended for covering the waste bag are stored. In the method according to the invention, three means are used simultaneously to reduce the volume of waste, firstly, suction of the gaseous atmosphere from the waste bag, secondly mechanical compression, which serves to assist in the removal of the gaseous atmosphere and, above all, enables higher pressures to be applied to the waste, and finally, thirdly, the action of compressed air on the outside of the waste bag. The suction of the gaseous atmosphere from the waste bag, which creates a negative pressure in the waste bag, is shown in the figure as "A". The pressurization is illustrated by the arrows marked "B". The latter is brought about by introducing compressed air into the container, here below the base plate. The compressed air flows past the seals of the base plate and acts on the waste bag, which is sealed against the lid. The force from lifting the base plate causes the waste to be mechanically compressed.

Figure 25 shows a section accordingly Figure 18 with more details for the process step of perforating and suctioning as well as air pressure. Shown is the upper edge of the container, the lid is in the closed position, the second seal on the lid interacts with the first seal, here over a part of the clamping frame including a corresponding further seal on the clamping frame (as in Figure 18 ). The means for thermal welding (11) are arranged at the container opening, here designed as strip electrodes. A waste bag (23) is shown inserted into the container, which lies against the side wall (and the base plate, not shown here) inside the container. The waste bag is stretched over the container opening by the means for fixing the waste bag, here designed as a tensioning frame. In order to close the waste bag when the intended fill level is reached, according to the invention a part, for example a tab of the waste bag, or, preferably, a separate part of the waste bag (24), for example from an endless roll, is placed over the container opening. This is typically done manually with the container unit pulled out, but corresponding means can also be provided which automatically position the separate part (24), for example from an endless roll, over the container opening. The separate part of the waste bag (24) is clamped by the means for fixing the cover of the waste bag (27), a correctly inserted part (24) activates the safety switches (28). With the lid in the closed position, the second seal of the lid device is positioned directly on the first seal of the container (see more in Fig. 18 ). The seals of the lid device and the container seal the separate part (24) against the waste bag (23). In this position, the inside of the waste bag is hermetically sealed against the environment. To prevent the suction of the atmosphere from the In order to enable access to the inside of the bag, a defined opening is created in the cover of the waste bag using the perforation means. After the perforation has been made, part of the atmosphere can be sucked out of the inside of the waste bag through the suction opening on the lid, or part of the atmosphere can escape from the inside of the waste bag when it is compressed. The suction of the gaseous atmosphere from the waste bag, which creates a negative pressure in the waste bag, is shown in the figure as "A". The pressurization is illustrated by the arrows marked "B". The latter is brought about by introducing compressed air into the container, here below the base plate. The compressed air flows past the seals on the base plate and acts on the waste bag, which is sealed against the lid. The force caused by lifting the base plate causes the waste to be mechanically compressed.

Figure 26 shows the Figure 25 corresponding cutout at the other end of the container, according to Figure 19 . Shown is the top edge of the container, the lid assembly is in the closing position, the second seal on the lid assembly interacts with the first seal (as in Fig. 19 ). The means for thermal welding (11) are arranged at the container opening, here designed as strip electrodes. A waste bag (23) is shown inserted into the container. The waste bag is stretched over the container opening by the means for fixing the waste bag, here designed as a tensioning frame. According to the preferred embodiment shown, a separate part of the waste bag (24) is positioned by a roll (30) over the container opening and the waste bag inserted into it, typically manually when the container unit is pulled out, but corresponding means can also be provided which automatically position the separate part (24) over the container opening. The seals of the lid device and the container seal the separate part (24) against the waste bag (23). The suction of the gaseous atmosphere from the waste bag, which creates a negative pressure in the waste bag, is shown in the figure as "A". The pressurization is illustrated by the arrows marked "B". After suction, the waste bag is closed by welding to the separate part (24), and the latter is separated from the roll (30) by the means for separating the separate part (29), here designed as a cutting electrode.

Figure 27 shows three views of a device (1) according to the invention in accordance with the first embodiment, designed with a flap (33) in the lid device (7) for a (single) container, with front cover, control element (designed as a touch screen) and baseboard, e.g. suitable as a mobile, free-standing waste bin. In view A the flap (33) in the lid device (7) is closed, in view B the The inlet flap (33) is opened and the container can be filled with waste. View C shows the device with the lid device (7) partially opened, corresponding to Fig. 2 The ability to open the cover plate including the insertion flap (33) separately from the insertion funnel (32), thus separating the latter components, provides advantageous access to the components for servicing and cleaning. The left side cover of the device is not shown in any of the three views, which provides a view of the means for moving the device (31), here designed as wheels. The device is preferably designed in such a way that the insertion flap (33) opens, for example by tapping or touching the control panel, to provide access to the containers with waste bags inside for inserting the waste. The insertion flap (33) can be re-closed manually or automatically, again for example by tapping or touching the control panel.

Figure 28 shows a view of the device (1) according to the invention according to Figure 27 . The middle part, which comprises the container unit, is shown pulled out by means of the side pull-out rails. To increase stability, the means for moving the device (31), here designed as wheels, are also located on the container unit, i.e. the pulled out middle part, which comprises the containers. The upper part with the operating element, which comprises the lid device (7), is shown in the folded state with the insertion flap (33) closed. In the container shown, the opening of the container is covered by a separate part of the waste bag (24) and is thus shown closed. The separate part of the waste bag (24) comes, as in the Fig. 22 shown, from a roll (endless roll) which stores several parts of the waste bag (24) intended to cover the waste bag. The roll is preferably arranged at the rear end of the container, ie at the end of the container further away from the front cover. As in the Fig. 22 In the state shown, the roll (30) is preferably arranged in such a way that, in order to close the waste bag, according to the invention a separate part of the waste bag (24) can be unrolled from the roll and placed over the container opening. The part of the waste bag (24) can then be fixed by the means for fixing the cover of the waste bag, here designed as a foldable frame on the front of the container.

Figure 29 shows a section through a device according to the invention in the second embodiment according to Figure 17 . The device comprises two containers, in the left container the floor is lowered and the locking device (34) is open, in the right container the floor is raised and the locking device (34) is closed. The insertion flap (33) is open in the left container and closed in the right container. The detailed views A and B are shown in Figure 30 shown.

Figure 30 shows the detailed views A and B from Figure 29 . In the left detailed view A, the closure device (34) is shown open with the wings folded into the hopper (32), the lock of the closure device (35) has been released. A waste bag (23) is placed in the container (2). In the right detailed view B, the closure device (34) in the hopper (32) is shown closed, the lock of the closure device (35) fixes the wings of the closure device (34). The closure device (34) prevents the waste from being pressed out of the waste bag (23) into the hopper (32).

According to the invention, a waste container is thus provided in which a comparatively large amount of waste can be collected and stored, which can be compacted to the maximum and then disposed of cleanly, and which is at the same time easy to use.

reference character list

1

device

2

container

3

side walls

4

base plate

5

First seal at the opening of the container

6

opening of the container

7

lid device

8

Second seal on the lid device

9

means for generating compressed air

10

means for generating negative pressure

11

means for thermal welding

11a

Control for the means for thermal welding

12

suction opening on the lid device

13

seal on the base plate

14

means for moving the base plate

15

inlet opening into the container

16

inlet valve for compressed air

17

means for fixing a waste bag

17a

Seal on the means for fixing a waste bag

18

container floor

19

activated carbon filter

20

protective device for UV lamp

21

means of perforation

22

suction gap

23

garbage bags

24

flap of the garbage bag or separate part

25

recess for perforation

26

UV lamp

27

Means for fixing the cover of the waste bag

27a

spikes for fixing the cover of the waste bag

28

circuit breaker

29

means for separating the separate part

30

roll of the separate part to cover the waste bag

31

means for moving the device

32

funnel

33

flap

34

locking device

35

locking mechanism for locking device

36

Fourth seal of the insertion flap

37

lock slot flap

Claims (14)

Mobile device (1) for collecting and compacting waste comprising a) a container (2) for receiving a waste bag comprising side walls (3), inside a movable base plate (4) and a first seal (5) at the opening (6), b) a lid device (7) with a second seal (8), the lid device being configured and arranged such that it • can be brought into an open position opposite the opening (6) of the container (2) so that the opening (6) of the container (2) is accessible for the insertion of a waste bag, and • can be brought into a closed position opposite the opening (6) of the container (2) so that the lid device (7) interacts with the opening of the container (2) in such a form-fitting manner that a waste bag introduced into the container (2) can be hermetically sealed between the first seal (5) and the second seal (8) against the lid device (7), c) means (9) for generating compressed air, d) means (10) for generating negative pressure, e) means (11) for thermally sealing a waste bag placed in the container (2) when the lid device is in the closing position, the means being located at the opening (6) of the container and/or at the lid device (7), and f) means (31) for moving the mobile device (1), characterized in that the lid device (7) has a suction opening (12) which is arranged on the lid device (7) in such a way that in the closed position the gaseous atmosphere can be partially sucked out from the interior of a waste bag introduced into the container (2) by means of the means (10) for generating negative pressure, the container (2) is airtight when the opening (6) is closed, the base plate (4) of the container is displaceable relative to the side walls (3) and in the closed position in the direction of the lid device (7), the device (1) has means (14) for displacing the base plate (4) relative to the side walls (3), and the container (2) has an inlet opening (15) for compressed air, which can be supplied with compressed air provided by the means (9) for generating compressed air in a controlled manner by means of an inlet valve (16). Device (1) according to claim 1, wherein the lid device (7) comprises an insertion funnel (32) which optionally carries the second seal (8) at the tapered end, an insertion flap (33) which closes the insertion funnel (32) at the wider (upper) end, preferably airtight, and optionally means (21) for perforating a waste bag. Device (1) according to claim 1 or 2, wherein the means (14) for displacing the base plate (4) are driven by compressed air provided by the means (9) for generating compressed air. Device (1) according to one of the preceding claims, which is configured so that the compressed air used for the means (14) for displacing the base plate (4) can also be guided to the inlet opening (15) in a controlled manner by means of an inlet valve (16). Device (1) according to one of the preceding claims, wherein the means (14) for displacing the base plate are pneumatically operated, and are preferably one or more pneumatic cylinders or one or more pneumatic bellows. Device (1) according to one of the preceding claims, wherein the means (10) for generating negative pressure, preferably a vacuum pump, are arranged in the lid device (7). Device (1) according to one of the preceding claims, wherein the means (10) for generating negative pressure comprise a filter, preferably a carbon filter, and/or a liquid sensor. Device (1) according to one of the preceding claims, wherein the lid device (7), preferably in the insertion flap (33), has means for irradiating the interior of the container with UV light. Device (1) according to one of the preceding claims, wherein the device comprises means (17) for fixing a waste bag, preferably a tensioning frame, to the opening (6) of the container. Device (1) according to one of the preceding claims, wherein the device comprises means for displacing the device, preferably tires, rollers, ball rollers or rollers. A method for collecting and compacting waste, comprising the step of sucking off a portion of the gaseous atmosphere from a waste bag containing waste, while simultaneously mechanically compressing the waste bag and applying external air pressure to the waste bag, the method using a device (1) according to one of the preceding claims 1 to 10. A method according to claim 11, wherein prior to the step of sucking a portion of the gaseous atmosphere out of a waste bag containing waste while simultaneously mechanically compressing the waste bag and externally pressurizing the waste bag, a step is first carried out in which only the waste bag is mechanically compressed, followed by additionally sucking a first portion of the gaseous atmosphere out of a waste bag. Method according to one of claims 11 or 12, in which, before the step of sucking a part of the gaseous atmosphere out of a waste bag containing waste, while simultaneously mechanically compressing the waste bag and applying external air pressure to the waste bag, the waste bag is closed by means of a part of the bag or a separate part of the waste bag by pressing the part on, this part of the bag or a separate part of the waste bag is perforated, and a part of the gaseous atmosphere is sucked out of the waste bag through the perforation opening. A method according to any one of claims 11 to 13, further comprising a step of closing the waste bag by thermal welding during or after evacuating a portion of the gaseous atmosphere from a waste bag.

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