DE102017120209B4 - Device for chopping food and its use - Google Patents

Abstract

Evacuable shredding device (1) for shredding food, comprising a base (2) and an airtight sealable container (3) in which a drive shaft (31) with at least one shredding means (32), in particular at least one rotatable knife, is rotatably mounted, whereby the base (2) has a drive unit (21) for driving the drive shaft (31), to which the container (3) can be connected via a connection area (33), characterized in that the container (3) has at least one relative to the external atmosphere Has pressure-tightly closable atmosphere element (34) which is connected to at least one atmosphere tube (35) arranged in the container (3), which has an upper opening (35a), and, to generate a defined atmosphere in the container (3), via at least one Atmospheric unit (22) on the upper side of the base (2) can be coupled to the base (2), with at least one atmospheric egg Unit (22) at least one evacuation module (23) arranged in the base (2) for generating a defined pressure, preferably a defined vacuum, and at least one gassing module (24) arranged in the base (2) for introducing a gas, preferably a protective gas , in particular for introducing nitrogen, dinitrogen monoxide and / or argon, the at least one evacuation module (23) and the at least one gassing module (24), each independently, being switchable via a switch.

Description

The invention relates to an evacuable shredding device for shredding food comprising a base and an airtight sealable container in which a drive shaft with at least one shredding means, in particular at least one rotatable knife, is rotatably mounted, the base having a drive unit for driving the drive shaft, to which the container can be connected via a connection area, as well as the use of such a shredding device in a method for shredding food. The invention furthermore relates to a set comprising the comminution device according to the invention.

Disclosed in the prior art WO 2013/143430 A1 a food processor with an electrical air suction pump and a method for suctioning and producing food liquids. WO 2014/135249 A2 discloses a mixer with measures to reduce the entry of atmospheric oxygen into the contents of the mixer.

The taste and shelf life of foods are often negatively affected by increased contact with the ambient air. On the one hand, this will facilitate access for microorganisms and, on the other hand, accelerate the oxidation process due to atmospheric oxygen. In connection with the storage of food, storage under vacuum-like conditions and under a protective gas atmosphere has therefore been preferred for some time. Even with shredding processes, in which the surface of the corresponding foodstuffs coming into contact with the ambient air naturally increases, the setting of vacuum-like conditions or gassing with protective gas seems to make sense. As a rule, the contents of conventional mixers are permeated with air by the rotational movement and the associated suction effect of the knives, which creates an inhomogeneous mixture and accelerates the oxidation process.

The present invention is therefore based on the object of providing a comminution device, such as a blender, which has an integrated device for generating a defined atmosphere, in particular before and / or during the comminution process, in order to maintain the freshness and taste of the foods to be comminuted , In particular, a comminution device should be provided which is easy to handle and, if possible, can be evacuated and / or fumigated using the same device. In addition, the object is to provide use of such a comminution device in a method for comminuting food.

The objects of the invention are achieved by an evacuable shredder according to claim 1, by its use in a method for shredding food, in particular for producing a smothie, according to claim 12 and a set according to claim 13. Preferred embodiments of the invention are in the subclaims and disclosed in detail in the description.

According to the invention, the object of the present invention is achieved in that an evacuable comminution device for comminuting food, in particular a blender, comprising a base with at least one atmosphere unit and a container with at least one atmospheric element which can be closed in a pressure-tight manner with respect to the external atmosphere and can be coupled with the atmospheric unit that, with the aid of at least one evacuation module connected to the atmosphere unit and arranged in the base and at least one gassing module connected to the atmosphere unit and arranged in the base, can be evacuated or gassed before and / or during the comminution process, in particular via an atmosphere tube in the container is.

In the context of the present invention, the term comminution device is understood to mean a stable kitchen device for universal comminution, in which a drive shaft with at least one comminution means, such as a flat or cross knife, preferably comprising two to eight blades, is rotatably mounted. Such a shredder corresponds, for example, to a blender, synonymous with the names blender or food processor. Preferred crushing devices are suitable for crushing a wide variety of foods, including drinking water and food, in particular for crushing easily oxidizable foods such as fruits and / or vegetables.

The comminution device comprises a container, in particular with a cylindrical or conical basic shape, the container preferably being made of a resistant material, such as plastic, in particular BPA-free plastic, and / or glass. A drive shaft is provided within the container, which is preferably arranged vertically on the bottom of the container, in particular removable, and on the upper end of which a corresponding comminution means is fixed. The drive shaft is connected to a connection area, which is preferably arranged on the container from below. According to the invention, the container is placed on a base, preferably made of plastic, in particular BPA-free plastic, and / or metal, with a drive unit preferably arranged on the upper side of the base, whereby the connection area of the container is connected to the drive unit of the base. Thus, the connection area preferably has a connection geometry corresponding to the drive unit and can in particular be latched to it. Accordingly, the drive shaft connected to the connection area is driven when the drive unit is actuated, in particular by means of an electromotive drive belonging to the base. Alternatively, a battery or a secondary coil can be provided within the base, a current flow for driving the drive shaft being generated inductively using a corresponding primary coil located outside the comminution device.

The invention relates to an evacuable shredding device for shredding food, in particular a blender, comprising a base and an airtight sealable container in which a drive shaft with at least one shredding means, in particular at least one rotatable knife, is rotatably mounted, the base being a drive unit for Driving the drive shaft, to which the container can be connected via a connection area, and wherein the container has at least one atmospheric element which can be closed in a pressure-tight manner with respect to the external atmosphere and which is connected to at least one atmosphere tube arranged in the container and having an upper opening, and, for Generating a defined atmosphere, preferably a defined negative pressure, in particular a defined vacuum, or an inert gas or protective gas atmosphere, in the container, via at least one atmosphere unit at the O. top of the base can be coupled to the base. The atmosphere tube can be arranged as a separate component in the container or can also be formed as an integral part of the container. For example, the atmosphere tube can be formed inside or on the inner vessel wall.

According to the invention, the comminution device can be evacuated via at least one atmospheric element, which is preferably arranged within the bottom of the container. Accordingly, the at least one atmospheric element has both an end visible above the container bottom and an underneath the container bottom and therefore represents a connection between the air present in the container and the ambient air. The at least one atmospheric element can be connected to at least one via the end pointing into the interior of the container In the container arranged atmosphere tube, which has an inner diameter of greater than or equal to 0.1 cm to less than or equal to 5 cm, preferably greater than or equal to 1 mm to less than or equal to 3 cm, particularly preferably from 0.2 to 0.7 cm. The at least one atmosphere tube preferably has an opening on its upper side which is spaced apart from the sides of the container and through which the air present in the container can be extracted and / or a gas, in particular a protective gas, can be introduced. According to a particularly preferred embodiment, the atmosphere tube can be designed as part of the container, in particular as an integral part of the container, preferably as an integral part of the container wall. For example, the atmosphere tube can be attached to and / or applied to the inside of the container wall. Likewise, the atmosphere tube can be formed as an integral part of the container wall, see 2a , his. The inner cross section of the atmosphere tube can take on any suitable cross section, in particular the cross section can be circular, elliptical or also rectangular with rounded corners. It is advantageous if the inside diameter or the cross section of the atmosphere tube can be cleaned with a small washing-up brush. The cross section is therefore preferably from 0.2 to 4 cm ² , preferably from 0.9 to 2 cm ² .

The end of the atmospheric element located on the underside of the container, on the other hand, can be coupled to the atmospheric unit on the upper side of the base. In a preferred embodiment of the comminution device according to the invention, the at least one atmosphere element can be connected to the at least one atmosphere unit via a connector system comprising a female and a male connector part, in particular via a plug-in system, preferably with a locking sleeve, in particular with a locking collar. Preferred connector systems are selected from the plug connection, screw connection and bayonet connection. Likewise, the connector system can be a Luer system, a Luer lock system, a collar closure, a radial collar closure or a non-destructive connection element known to the person skilled in the art, such as, for example, flange (s). In addition, both the atmospheric element and the atmospheric unit can each have an O-ring and / or a seal. Likewise, the male connector part can also find additional hold within the female connector part by means of spring force or a catch, such as a click element. The connection of the connector system is preferably non-positive and / or positive, so that the male connector part seals with the female connector part. It can be particularly preferred if the at least one atmosphere element as a female connector part and the at least one atmosphere unit is designed as a male connector part.

By coupling the at least one atmospheric element of the container with the atmospheric unit of the base, a defined atmosphere, preferably a defined negative pressure, in particular a vacuum, or a protective gas atmosphere can be generated inside the container. For generating a negative pressure, the air present in the container can be sucked through the opening into the at least one atmosphere tube and evacuated via the atmosphere element and the atmosphere unit. Alternatively, a gas, preferably a protective gas, can be introduced into the atmosphere tube via the atmospheric unit and the atmospheric element and can be discharged via the opening. In this context, the term negative pressure is understood to mean a negative pressure difference compared to the external atmospheric pressure, in particular a pressure of greater than or equal to 300 mbar to less than or equal to 1000 mbar, whereas the term vacuum is understood to mean a pressure in the range between 0 mbar and 300 mbar , The term protective gas atmosphere denotes an atmosphere made of a gas or gas mixture, which has the task of displacing the air inside the container, in particular the oxygen contained therein. Preferred protective gases preferably include nitrogen, nitrous oxide, carbon dioxide, helium, neon, argon, krypton, xenon and / or radon.

In order to maintain the generated atmosphere, in particular the negative pressure or the protective gas atmosphere, in the container, the at least one atmospheric element can also be closed in a pressure-tight manner. In the context of the invention, pressure-tight is to be understood as being sealed off from the external atmosphere, in particular up to a pressure difference of greater than or equal to 500 mbar, preferably greater than or equal to 700 mbar, particularly preferably up to a pressure difference of greater than or equal to 1000 mbar. According to a preferred embodiment of the comminution device according to the invention, the at least one atmospheric element is therefore designed in the form of a valve, preferably in the form of a check valve. The at least one atmospheric element is particularly preferably in the form of a plate check valve, flap check valve or ball check valve, so that an inflow of the ambient air into the container can be prevented and only allows the air or gas present in the container, in particular protective gas, to escape becomes. A vacuum of less than or equal to 500 mbar, 300 mbar, 250 mbar or less than or equal to 200 mbar, particularly preferably up to 150 mbar, can advantageously be set and / or maintained in the container. Particularly preferably, a vacuum of less than or equal to 500 mbar, in particular less than or equal to 300 mbar, preferably of less than or equal to 200 mbar, can be maintained for at least one or two days. In an alternative, in which only a lower vacuum of up to 300 mbar or up to 200 mbar is set, the container can therefore consist of a plastic or standard thermoplastic. Alternatively, the container and / or the lid can be made of a metal, an alloy or a high-performance polymer to set a vacuum of up to 10 mbar, preferably up to 50 mbar.

In this context, it can further be preferred if the at least one atmosphere element is closed in a pressure-tight manner with respect to the outside atmosphere, in particular by a valve, and only by the coupling with which at least one atmosphere unit is opened. To open the at least one evacuation unit, it is necessary to place the container on the base. This has the advantage that neither gas present in the container, in particular protective gas, can escape unintentionally, nor can ambient air unintentionally flow into the container.

In the comminution device according to the invention, at least one evacuation module arranged in the base for generating a defined pressure, preferably a defined negative pressure, and / or at least one gassing module arranged in the base for introducing a gas, preferably a protective gas, in particular for introducing, is attached to the at least one atmosphere unit of nitrogen, nitrous oxide and / or argon. The at least one atmosphere unit within the base is connected to the at least one evacuation module and to the at least one gassing module via at least one media line. Exactly one evacuation module and / or exactly one fumigation module and also a system of at least two evacuation modules and / or at least two fumigation modules can be arranged within the base. In addition, it can be preferred if the at least one evacuation module and the at least one fumigation module are each connected to their own atmosphere unit, in particular to an evacuation unit or to a fumigation unit. In order to generate a defined pressure, preferably a defined negative pressure, the air present in the container can be sucked into this through an upper opening of an evacuation tube and released via an evacuation element and the evacuation unit. Alternatively, a gas, preferably a protective gas, can be introduced into a fumigation tube via the fumigation unit and a fumigation element and through an upper opening of the Fumigation tubes are given. However, the at least one evacuation module and / or the at least one gassing module are particularly preferably connected to a common atmosphere unit, the at least one evacuation module and / or the at least one gassing module, each independently, via a switch, in particular via a switch for the at least one Evacuation module and a switch for the at least one gassing module are switchable. The switch may include a multi-way valve, such as a three-way valve or a two-way valve.

In this context, it can be particularly preferred if the at least one evacuation module is a vacuum pump and / or the at least one fumigation module comprises an exchangeable protective gas capsule, in particular an exchangeable nitrogen capsule, nitrous oxide capsule and / or argon capsule. The vacuum pump is preferably driven by the electromotive drive of the shredding device according to the invention provided for the shredding process, so that the desired pressure level can be generated in the container within seconds. It is preferred if a pressure of greater than or equal to 150 mbar to less than or equal to 500 mbar, in particular less than or equal to 300 mbar, particularly preferably of 500 mbar to greater than or equal to 50 mbar is generated in the interior of the container. A vacuum of 500 mbar to 200 mbar or also from 300 mbar to 150 mbar can be set particularly preferably with the vacuum pump, so that in this way in particular few evacuation cycles and gassing cycles have to be carried out in order to maintain a protective gas atmosphere. A pressure of approximately 300 mbar plus / minus 50 mbar is particularly preferred. The at least one gassing module is preferably designed in such a way that used protective gas capsules can be exchanged and / or can be changed between different protective gas capsules. In particular, it can be preferred if the at least one gassing module comprises different interchangeable protective gas capsules, such as two to five interchangeable protective gas capsules, so that it is possible to switch between several types of protective gas and / or to generate a protective gas mixture during the shredding process.

In a further preferred embodiment of the comminution device according to the invention, a sieve, a rebound surface, a rebound surface with at least one opening and / or a membrane is arranged in the upper opening of the at least one atmosphere tube. Optionally, the upper opening of the at least one atmosphere tube is also provided with at least one drying valve, in particular a ball check valve or a check valve. This has the advantage that the corresponding rotating food does not get into the atmosphere tube during the shredding process and, in the worst case, can damage the evacuation module, in particular the vacuum pump, and / or the gassing module.

Furthermore, it can be preferred if the at least one atmosphere tube and the at least one atmosphere element and / or the at least one atmosphere tube and the at least one sieve, the rebound surface or the membrane are designed to be separable from one another. Accordingly, the at least one atmosphere tube is preferably separably connected to the at least one atmosphere element, in particular via a screw connection, click connection or bayonet connection. This has the advantage that the at least one atmosphere tube can be removed for cleaning the container, or comminution processes can be carried out without the at least one atmosphere tube. In addition, the at least one sieve or the membrane is preferably separable, in particular likewise via a screw connection, click connection or bayonet connection, with the at least one atmosphere tube. The at least one atmosphere tube can be cleaned easily and uncomplicatedly, for example with the help of a pipe cleaner.

In addition, it can be preferred if the comminution device according to the invention has a pressure relief valve for regulating between the inside of the container and the outside atmosphere. In a preferred embodiment of the comminution device according to the invention, the container therefore has a safety valve, in particular comprising a pressure indicator for visualizing the pressure present in the container, preferably the negative pressure present in the container. The safety valve is preferably designed as a ventilation valve which, when a certain pressure, in particular a pressure of less than or equal to 150 mbar, is reached, allows ambient air to flow into the interior of the container. Alternatively, however, the safety valve can also be designed as a venting valve, which regulates when a gas, in particular a protective gas, is introduced.

In a further preferred embodiment of the comminution device according to the invention, the container comprises an upwardly open container in which the drive shaft with the at least one comminution means is rotatably mounted, and a cover which closes the container in an airtight manner, the connection region and the at least one atmospheric element in the lower region of the Container, especially on the floor of the container are arranged. The lid, preferably made of plastic, in particular BPA-free plastic, and / or metal, can preferably be connected non-positively and / or positively to the container which is open at the top, in particular via a plug closure, click closure, screw closure or bayonet closure. The container can be closed airtight with the aid of the cover, airtight in the sense of the invention being understood to be sealed against air escaping from the container and air entering the container. It can therefore be particularly preferred if the container and / or lid have a circumferential seal.

In an alternative preferred embodiment of the comminution device according to the invention, the container comprises a container which is open at the bottom and a base cover which closes the container in an airtight manner, the drive shaft with the at least one comminution means and the connection area and the at least one atmospheric element being arranged on the base cover. Accordingly, the drive shaft and the connection area and the at least one atmospheric element are only brought into contact with the container when it is closed at the bottom. The drive shaft with the at least one comminution means is preferably located on the top of the bottom cover, in particular on the side facing the interior of the container, whereas the connection area connected to the drive shaft is arranged on the underside of the comminution element.

The atmospheric element is arranged inside the bottom cover and has both an end visible on the top of the bottom cover and an end on the underside of the bottom cover. The atmosphere element preferably has a reciprocal connection geometry for the connection geometry of the atmosphere unit in the base. The bottom cover, preferably made of plastic, in particular BPA-free plastic, and / or metal, can preferably be connected non-positively and / or positively to the container which is open at the bottom, in particular via a screw closure or a bayonet closure. The container can be closed in an airtight manner using the bottom cover, which is why the container and / or cover preferably have a circumferential seal.

In a particularly preferred embodiment of the comminution device according to the invention, the comminution device also comprises a housing, preferably with a cover, which can be placed on the base, preferably can be attached to the base, and the container, in particular the container open at the top and the lid and / or surrounds the open container and the bottom lid. In this case, the housing is provided as protection against undesired movements of the container, in particular of the container with a lid or with a bottom lid, which occur during the comminution process. It can therefore be preferred if the housing is firmly connected to the base and / or to the cover, in particular via a click connection, screw connection or bayonet connection.

• - die entsprechenden Lebensmittel, insbesondere die entsprechenden leicht oxidierbaren Lebensmittel, in den Behälter eingefüllt werden bzw. in das nach oben geöffnete Behältnis eingefüllt werden und dieses mit dem Deckel luftdicht verschlossen wird oder in das nach unten geöffnete Behältnis eingefüllt werden und dieses mit dem Bodendeckel luftdicht verschlossen wird, und
• - der Behälter, insbesondere das nach oben geöffnete Behältnis mit dem Deckel oder das nach unten geöffnete Behältnis mit dem Bodendeckel, auf die Basis aufgesetzt wird, um den Anschlussbereich an die Antriebseinheit anzuschließen und das Atmosphärenelement mit der Atmosphäreneinheit zu kuppeln, wobei das Atmosphärenelement geöffnet und über die Atmosphäreneinheit an mindestens ein in der Basis angeordnetes Evakuierungsmodul und/oder an mindestens ein in der Basis angeordnetes Begasungsmodul angeschlossen wird, und, optional,
• - ein den Behälter, insbesondere das nach oben geöffnete Behältnis und den Deckel oder das nach unten geöffnete Behältnis und den Bodendeckel, umgebende Gehäuse, vorzugsweise mit einer Abdeckung, auf die Basis aufgesetzt, vorzugsweise an dieser festgelegt wird, und
• - ein definierter Druck, vorzugsweise ein definierter Unterdruck, besonders bevorzugt ein definiertes Vakuum, im Behälter erzeugt wird, indem die im Behälter vorhandene Luft durch die obere Öffnung, welche vorzugsweise oberhalb des Spiegels der zu zerkleinernden Lebensmittel angeordnet ist, in die mindestens eine Atmosphärenröhre gesaugt und über das Atmosphärenelement sowie die Atmosphäreneinheit evakuiert wird (Evakuieren) und/oder
• - ein Gas, vorzugsweise ein Schutzgas, insbesondere Stickstoff, Distickstoffmonoxid und/oder Argon, über die Atmosphäreneinheit sowie das Atmosphärenelement in die Atmosphärenröhre eingeleitet und über die obere Öffnung, welche vorzugsweise oberhalb des Spiegels der zu zerkleinernden Lebensmittel angeordnet ist, abgegeben wird (Begasen) und
• - die Antriebswelle mit dem mindestens einen Zerkleinerungsmittel durch Betätigung der Antriebseinheit angetrieben wird (Zerkleinern).

The present invention furthermore relates to the use of an evacuable comminution device according to the invention, in particular a blender, comprising a base with a drive unit and at least one atmosphere unit and an airtight sealable container in which a drive shaft with at least one comminution means, in particular at least one rotatable knife, is rotatably mounted and which has a connection area and at least one atmospheric element which can be closed in a pressure-tight manner with respect to the external atmosphere and which is connected to at least one atmosphere tube with an upper opening, in a method for comminuting foods, in particular in a method for comminuting easily oxidizable foods, wherein

• - The corresponding foodstuffs, in particular the corresponding easily oxidizable foodstuffs, are filled into the container or filled into the container which is open at the top and this is sealed airtight with the lid or is filled into the container which is open at the bottom and is airtight with the base cover is closed, and
• - The container, in particular the open container with the lid or the open container with the bottom lid, is placed on the base in order to connect the connection area to the drive unit and to couple the atmospheric element to the atmospheric unit, the atmospheric element being opened and is connected via the atmosphere unit to at least one evacuation module arranged in the base and / or to at least one fumigation module arranged in the base, and, optionally,
• - A housing surrounding the container, in particular the upwardly open container and the lid or the downwardly open container and the base cover, preferably with a cover, placed on the base, preferably attached to the base, and
• - A defined pressure, preferably a defined negative pressure, particularly preferably a defined vacuum, is generated in the container by the air present in the container through the upper opening, which is preferably arranged above the level of the food to be shredded, sucked into the at least one atmosphere tube and evacuated via the atmospheric element and the atmospheric unit (evacuation) and / or
• - A gas, preferably a protective gas, in particular nitrogen, nitrous oxide and / or argon, is introduced into the atmosphere tube via the atmospheric unit and the atmospheric element and is released via the upper opening, which is preferably arranged above the level of the food to be shredded (gassing) and
• - The drive shaft is driven with the at least one shredding means by actuating the drive unit (shredding).

According to the invention, the steps of evacuation, gassing and comminution can also be carried out in the reverse order or in any order. In addition, individual steps can be omitted, so that, for example, the sequence of evacuation, crushing or gassing, crushing is possible. Furthermore, it may be preferred if evacuation and / or gassing is carried out after or between the comminution steps. It can also be preferred if the comminution device according to the invention is operated and evacuated or operated and gassed at the same time, so that evacuation and / or gassing is also possible during the comminution.

• - eine Basis eines erfindungsgemäßen evakuierbaren Zerkleinerungsgeräts, welche eine Antriebseinheit und mindestens eine Atmosphäreneinheit aufweist,
• - einen Mixbehälter, vorzugsweise mit einer Messskala, umfassend ein nach oben geöffnetes Behältnis, in welchem eine Antriebswelle mit mindestens einem Zerkleinerungsmittel, insbesondere einem rotierbaren Messer, drehbar gelagert ist und welches einen Anschlussbereich sowie mindestens ein gegenüber der äußeren Atmosphäre druckdicht verschließbares Atmosphärenelement, welches an mindestens eine Atmosphärenröhre mit einer oberen Öffnung angeschlossen ist, aufweist, und/oder
• - einen Messbecher, vorzugsweise mit einer Messskala, umfassen ein nach unten geöffnetes Behältnis sowie einen das Behältnis luftdicht verschließenden Bodendeckel, an welchem eine Antriebswelle mit mindestens einem Zerkleinerungsmittel, insbesondere einem rotierbaren Messer, drehbar gelagert ist und welcher einen Anschlussbereich sowie mindestens ein gegenüber der äußeren Atmosphäre druckdicht verschließbares Evakuierungselement, welches an mindestens eine Evakuierungsröhre mit einer oberen Öffnung angeschlossen ist, aufweist und optional
• - einen Bodendeckel mit mindestens einer zusätzlichen luftdicht verschließbaren Öffnung, vorzugsweise mit einem scheibenförmigen Element druckdicht verschließbar, wobei der Bodendeckel mit mindestens einer zusätzlichen luftdicht verschließbaren Öffnung den Bodendeckel ersetzt.

The present invention also relates to a set

• a base of an evacuable comminution device according to the invention, which has a drive unit and at least one atmosphere unit,
• a mixing container, preferably with a measuring scale, comprising an upwardly open container in which a drive shaft with at least one comminution means, in particular a rotatable knife, is rotatably mounted and which has a connection area and at least one atmospheric element which can be closed in a pressure-tight manner with respect to the external atmosphere and which at least one atmosphere tube with an upper opening is connected, and / or
• - A measuring cup, preferably with a measuring scale, comprise a container which is open at the bottom and a bottom cover which closes the container in an airtight manner, on which a drive shaft with at least one comminution means, in particular a rotatable knife, is rotatably mounted and which has a connection area and at least one opposite the outer one Evacuation element which can be closed in an airtight manner and which is connected to at least one evacuation tube with an upper opening, and optionally
• - A bottom cover with at least one additional airtight sealable opening, preferably pressure-tight with a disc-shaped element, wherein the bottom cover with at least one additional airtight sealable opening replaces the bottom cover.

The container and / or the lid can each be made independently of PET (polyethylene terephthalate), polycarbonate (PC), PE (polyethylene); PP (polypropylene), PMMA (polymethyl methacrylate), PA (polyamide) or mixtures of plastics as well as plastics filled with inorganic fillers or from a metal or an alloy. Likewise, they can preferably be made of a high-performance polymer, preferably a high-performance thermoplastic or a technical thermoplastic, such as PEK (polyether ketone), PEEK (poly (ether ketone ketone)), PEKK (polyether ketone ketone), PEKEEK (polyether ketone ether ether ketone), POM (polyoxymethylene), PAI (polyamideimide), PPSU (polysulfones), PA (polyamides), SPS, PBT (polybutylene terephthalate), TPE (thermoplastic elastomers), PA6, PA66, PA11 / 12 (polyamides), PES (poly (oxy-1,4-phenylsulfonyl-1,4- phenyl), PC / PE (polycarbonate / polyethylene), PC / ABS (polycarbonate / acrylonitrile-butadiene-styrene copolymer), PPEm, SAN (styrene-acrylonitrile copolymer), ABS (acrylonitrile-butadiene-styrene copolymer) , alternatively from a standard thermoplastic such as PE-LD (polyethylene low density); PE-HD (polyethylene high density); PE-LLD (polyethylene linear low density).

The seals can advantageously be made from a thermoset, such as, for example, silicone or a rubber or mixture containing at least one of the two components.

• 1: eine schematische Darstellung eines erfindungsgemäßen evakuierbaren Zerkleinerungsgeräts 1
• 2a, 2b: Ausführungsformen eines erfindungsgemäßen evakuierbaren Zerkleinerungsgeräts 1
• 3: ein erfindungsgemäßes Set 10 umfassend eine Basis 2 sowie einen Mixbehälter 8 und einen Mixbecher 9

The drive shaft and / or the grinding means are preferably made of a metal or an alloy. A steel alloy is preferred, a stainless steel or also a ceramic or a hybrid ceramic is particularly preferred. The crushing agent is preferably made of a hybrid ceramic or a steel, preferably stainless steel.
The invention is explained in more detail with reference to the figures, without restricting the invention to these exemplary embodiments. Show it:

• 1 : a schematic representation of an evacuable comminution device 1 according to the invention
• 2a . 2 B : Embodiments of an evacuable shredding device 1 according to the invention
• 3 : a set according to the invention 10 comprehensive a base 2 as well as a blender jar 8th and a blender jar 9

1 shows an inventive evacuable shredder 1 comprehensive a base 2 and an airtight sealable container 3 in which a drive shaft 31 with a grinding agent 32 , in particular a knife, is rotatably mounted. The base 2 has a drive unit on its top 21 as well as an atmospheric unit 22 to the one in the base 2 arranged evacuation module 23 and one in the base 2 arranged fumigation module 24 are connected to. Corresponding to this is at the bottom of the container 3 a connection area 33 and an atmospheric element which can be closed in a pressure-tight manner with respect to the external atmosphere 34 arranged. So is the container 3 for driving the drive shaft 31 over the connection area 33 to the drive unit 21 the base 2 connected. In addition, the atmospheric element 34 which is attached to one in the container 3 arranged atmosphere tube 35 with an upper opening 35a and a sieve or membrane disposed therein 36 is connected via the atmosphere unit 22 to the base 2 coupled. The container 3 also has a safety valve on the top 37 on. In addition, the container 3 from a housing 7 with a cover 7a which is based on 2 attachable, in particular can be fixed on this, surrounded.

When using the evacuable comminution device in a process for comminuting food, in particular for comminuting easily oxidizable food, the container becomes 3 , in which the corresponding food was filled, on the base 2 put on, the connection area 33 to the drive unit 21 connected and the atmospheric element 34 with the atmospheric unit 22 is coupled. The evacuation module is then used to generate a defined atmosphere, in particular a defined negative pressure or a protective gas atmosphere 23 and / or the fumigation module 24 connected. So can in the container 3 First, a defined vacuum is generated by the in the container 3 existing air through the upper opening 35a , which is preferably arranged above the level of the food to be shredded, into the at least one atmosphere tube 35 sucked and over the atmospheric element 34 as well as the atmospheric unit 22 is evacuated. In addition, a gas, preferably a protective gas, can be released via the atmospheric unit 22 as well as the atmospheric element 34 into the atmosphere tube 35 initiated and through the upper opening 35a be delivered. Then the drive shaft 31 with the grinding agent 32 by operating the drive unit 21 , which preferably with an electric motor drive within the base 2 is coupled, which drives the in the container 3 contained food are crushed.

The 2a and 2 B each show an embodiment of an evacuable shredder according to the invention 1 comprehensive a base 2 and a container 3 ,

2a provides an evacuable shredder 1 comprehensive a base 2 as well as a container opened upwards 4A with the container 4A airtight lid 5 at the bottom of the container 4A is a drive shaft 31 with a grinding agent 32 rotatably mounted. It is also in the container 4A an atmosphere tube 35 , in particular as an integral part of the container wall, with an upper opening 35a arranged. When using the evacuable comminution device in a process for comminuting foods, in particular in a process for comminuting easily oxidizable foods, these are placed into the container from above 4A filled, preferably the upper opening 35a is arranged above the level of the food to be shredded. Then the lid 5 on the container 4A put on and this sealed airtight. In an alternative embodiment, the atmosphere tube can be made of a flexible polymer, such as silicone, and can be latched on the inside of the container inner wall.

2 B provides an evacuable shredder 1 comprehensive a base 2 as well as a container opened downwards 4B with the container 4B airtight bottom cover 6 on the bottom cover 6 is a drive shaft 31 with a grinding agent 32 rotatably mounted. In addition, is on the bottom cover 6 an atmosphere tube 35 with an upper opening 35a arranged. When using the evacuable comminution device in a process for comminuting foods, in particular in a process for comminuting easily oxidizable foods, these are first placed in the container turned upside down 4B filled. Then the bottom cover 6 on the container 4B put on and this sealed airtight, so that the drive shaft 31 and the grinding agent 32 as well as the atmosphere tube 35 with the top opening 35a now inside the container 4B are located. Will the container 4B now rotated again by 180 ° is the upper opening 35a preferably arranged above the level of the food to be shredded.

3 shows an inventive set 10 comprising an evacuable shredder 1 , comprising a base 2 as well as a blender jar 8th and a blender jar 9 , The blender jars differ 8th and the blender jar 9 in that the blender jar 8th a container opened upwards 4A and a lid 5 and the blender jar 9 a container opened downwards 4B and a bottom cover 6 includes. In addition, the blender jar 8th compared to the blender jar 9 preferably suitable for larger volumes of food to be shredded.

LIST OF REFERENCE NUMBERS

1

evacuable shredder

2

Base

21

drive unit

22

atmosphere unit

23

evacuation module

24

A fumigation

3

container

31

drive shaft

32

Comminution agent, in particular rotating knife

33

terminal area

34

atmosphere element

35

atmosphere tube

35a

upper opening of the atmosphere tube 35

36

Strainer or membrane

37

safety valve

4A

open container

4B

container opened downwards

5

cover

6

bottom cover

7

casing

7a

Cover the housing 7

8th

Mixing bowl

9

shaker

10

Set comprising a base 2 as well as a blender jar 8th and a blender jar 9

Claims (13)

Evacuable comminuting device (1) for comminuting food, comprising a base (2) and an airtight sealable container (3), in which a drive shaft (31) with at least one comminuting means (32), in particular at least one rotatable knife, is rotatably mounted, wherein the base (2) has a drive unit (21) for driving the drive shaft (31), to which the container (3) can be connected via a connection area (33), characterized in that the container (3) has at least one relative to the external atmosphere Has pressure-tightly closable atmosphere element (34) which is connected to at least one atmosphere tube (35) arranged in the container (3), which has an upper opening (35a), and, to generate a defined atmosphere in the container (3), via at least one Atmospheric unit (22) on the upper side of the base (2) can be coupled to the base (2), with at least one atmosphere unit (22) at least one evacuation module (23) arranged in the base (2) for generating a defined pressure, preferably a defined negative pressure, and at least one gassing module (24) arranged in the base (2) for introducing a gas, preferably a protective gas , in particular for introducing nitrogen, dinitrogen monoxide and / or argon, the at least one evacuation module (23) and the at least one gassing module (24), each independently, being switchable via a switch. Evacuable shredder (1) after Claim 1 , characterized in that the at least one atmosphere element (34) can be connected to the at least one atmosphere unit (22) via a connector system comprising a female and a male connector part, in particular via a plug-in system, preferably with a locking sleeve. Evacuable shredder (1) after Claim 1 or 2 , characterized in that the at least one atmospheric element (34) is in the form of a valve, preferably in the form of a check valve. Evacuable shredder (1) after Claim 3 , characterized in that the at least one atmosphere element (34) is pressure-tightly closed to the outside atmosphere, in particular by a valve, and is only opened by the coupling with the at least one atmosphere unit (22). Evacuable shredder (1) according to one of the Claims 1 to 4 , characterized in that the at least one evacuation module (23) is a vacuum pump and / or the at least one gassing module (24) comprises an exchangeable protective gas capsule, in particular an exchangeable nitrogen capsule, nitrous oxide capsule and / or argon capsule. Evacuable shredder (1) according to one of the Claims 1 to 5 , characterized in that in the upper opening (35a) of the at least one atmosphere tube (35) a sieve (36), a rebound surface is optionally arranged with at least one opening and / or a membrane and, optionally, the upper opening (35a) of the at least one atmosphere tube (35) is provided with at least one drying valve, in particular a ball check valve or a check valve. Evacuable shredder (1) according to one of the Claims 1 to 6 , characterized in that the at least one atmosphere tube (35) and the at least one atmosphere element (34) and / or the at least one atmosphere tube (35) and the at least one sieve (36), the rebound surface optionally with at least one opening and / or the Are designed separable from each other. Evacuable shredder (1) according to one of the Claims 1 to 7 , characterized in that the container (3) further comprises a safety valve (37), in particular comprising a pressure indicator for visualizing the pressure present in the container (3), preferably the negative pressure present in the container (3). Evacuable shredder (1) according to one of the Claims 1 to 8th characterized in that the container (3) is an upwardly open container (4A) in which the drive shaft (31) with the at least one comminution means (32) is rotatably mounted, and a cover (4A) which closes the container (4A) in an airtight manner ( 5), the connection area (33) and the at least one atmospheric element (34) being arranged in the lower area of the container (4A), in particular at the bottom of the container (4A). Evacuable shredder (1) according to one of the Claims 1 to 8th characterized in that the container (3) comprises a container (4B) which is open at the bottom and a base cover (6) which closes the container (4B) in an airtight manner, the drive shaft (31) with the at least one comminution means (32) and the connection area (33) and the at least one atmospheric element (34) are arranged on the bottom cover (6). Evacuable shredder (1) according to one of the Claims 1 to 10 characterized in that the comminution device (1) comprises a housing (7), preferably with a cover (7a), which can be placed on the base (2), preferably can be attached to the base (2), and the container ( 3), in particular the upwardly open container (4A) and the cover (5) and / or the downwardly open container (4B) and the base cover (6). Use of an evacuable shredder (1) according to one of the Claims 1 to 11 Comprising a base (2) with a drive unit (21) and at least one atmosphere unit (22) and an airtight sealable container (3) in which a drive shaft (31) with at least one comminution means (32), in particular at least one rotatable knife, can be rotated is mounted and which has a connection area (33) and at least one atmospheric element (34) which can be closed in a pressure-tight manner with respect to the external atmosphere and which is connected to at least one atmosphere tube (35) with an upper opening (35a), in a method for comminuting food , wherein - the container (3) is placed on the base (2) in order to connect the connection area (33) to the drive unit (21) and to couple the atmosphere element (34) to the atmosphere unit (22), and - a defined pressure , preferably a defined negative pressure, is generated in the container (3) by the air present in the container (3) through the upper opening opening (35a), which is preferably arranged above the level of the food to be shredded, sucked into the at least one atmosphere tube (35) and evacuated via the atmospheric element (34) and the atmospheric unit (22) and - a gas, preferably a protective gas, In particular nitrogen, nitrous oxide and / or argon, introduced into the atmosphere tube (35) via the atmospheric unit (22) and the atmospheric element (34) and discharged via the upper opening (35a), which is preferably arranged above the level of the food to be comminuted and - the drive shaft (31) is driven with the at least one comminution means (32) by actuating the drive unit (21). Set (10) comprising - a base (2) of an evacuable shredder (1) in particular according to one of the Claims 1 to 11 which has a drive unit (21) and at least one atmosphere unit (22) to which at least one evacuation module (23) arranged in the base (2) and at least one gassing module (24) arranged in the base (2) is connected, the at least an evacuation module (23) and the at least one gassing module (24), each of which can be switched independently via a switch, - a mixing container (8), preferably with a measuring scale, comprising a container (4A) open at the top, in which a drive shaft ( 31) with at least one comminution means (32), in particular a rotatable knife, rotatably mounted and which has a connection area (33) and at least one atmosphere element (34) which can be closed in a pressure-tight manner with respect to the external atmosphere and which is connected to at least one atmosphere tube (35) with an upper opening (35a), and / or - a measuring cup (9 ), preferably with a measuring scale, comprising a container (4B) which is open at the bottom and a bottom cover (6) which closes the container (4B) in an airtight manner and on which a drive shaft (31) with at least one comminution means (32), in particular a rotatable knife, is rotatably mounted and which has a connection area (33) and at least one evacuation element (34) which can be closed in a pressure-tight manner with respect to the external atmosphere and which is connected to at least one evacuation tube (35) with an upper opening (35a), and optionally has a bottom cover with at least one an additional airtight sealable opening, preferably with a sch yew-shaped element can be closed in a pressure-tight manner, the base cover replacing the base cover (6) with at least one additional air-tight sealable opening.

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