EP3159271B1 - Vacuum drawer for vacuuming food - Google Patents

Vacuum drawer for vacuuming food Download PDF

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Publication number
EP3159271B1
EP3159271B1 EP16192543.3A EP16192543A EP3159271B1 EP 3159271 B1 EP3159271 B1 EP 3159271B1 EP 16192543 A EP16192543 A EP 16192543A EP 3159271 B1 EP3159271 B1 EP 3159271B1
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EP
European Patent Office
Prior art keywords
vacuum
drawer
chamber
cylinder rod
vacuum chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP16192543.3A
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German (de)
French (fr)
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EP3159271A1 (en
Inventor
Stefan Bocks
Florian Harlander
Peter Kopfensteiner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Michatek KS
Original Assignee
Michatek KS
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Priority to PL16192543T priority Critical patent/PL3159271T3/en
Publication of EP3159271A1 publication Critical patent/EP3159271A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/024—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for wrappers or bags
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/90—Constructional details of drawers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B65B57/005—Safety-devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B77/00—Kitchen cabinets
    • A47B77/04—Provision for particular uses of compartments or other parts ; Compartments moving up and down, revolving parts
    • A47B77/08—Provision for particular uses of compartments or other parts ; Compartments moving up and down, revolving parts for incorporating apparatus operated by power, including water power; for incorporating apparatus for cooking, cooling, or laundry purposes

Definitions

  • the invention relates to a vacuum drawer for vacuuming food according to the preamble of claim 1.
  • Vacuum sealers comprise a vacuum chamber into which a suitable container, for example in the form of a sealable bag, is inserted. Within the chamber extends a welding bar, which is vertically adjustable in the vertical direction. The container filled with food is placed in the vacuum chamber, which is then hermetically sealed via a lid in order to generate a chamber vacuum by means of a vacuum pump.
  • the air can also be sucked out of the container. Afterwards, the sealing bar is adjusted in height and the bag is clamped between the welding bar and the counterpart. The bag is sealed via the supplied welding energy.
  • the vacuum drawer has a safety device that ensures that the welding bar can only be supplied with energy when the lid is closed. Otherwise, there is a risk of injury to people touching the welding bar and getting burned.
  • a known safety device operates in dependence on the position of the lid. If this safety device malfunctions, the welding bar may be energized and heated even though the lid is open.
  • the object of the invention is to propose a vacuum drawer of the type specified with an improved safety device.
  • the vacuum drawer for vacuuming foodstuffs comprises a vacuum chamber, which is hermetically sealed by an actuatable lid and in which an adjustable sealing bar is arranged.
  • the lid may be partially or completely made of glass.
  • the vacuum drawer further comprises a switch which allows power supply of the welding bar and which has a vacuum chamber connected to the vacuum chamber, which is delimited by a membrane. On the membrane a cylinder rod is attached.
  • the cylinder rod has an inclined actuating surface for actuating a switching cam.
  • the cylinder rod has an inclined actuating surface for actuating the switching cam extends the direction of movement of the switching cam transversely, preferably at a right angle to the direction of movement of the cylinder rod.
  • the cylinder rod can be arranged in the vertical direction, so that a vertical movement of the cylinder rod can be deflected into a horizontal movement of the control cam.
  • actuating surface of the cylinder rod is conical. Such an actuating surface is particularly easy to produce.
  • the actuating surface of the cylinder rod is preferably arranged on the end remote from the cylinder of the cylinder rod. It is preferably located on the side facing away from the vacuum cylinder side of the housing of the switch.
  • the vacuum drawer is suitably suitable for installation within a piece of furniture.
  • the dimension of the vacuum drawer preferably corresponds to any standard specifications for the dimensioning of such a piece of furniture.
  • the vacuum drawer is used for installation in a kitchen drawer.
  • the invention also relates to a piece of furniture with built-in vacuum drawer according to the present invention.
  • Both the piece of furniture and the vacuum drawer are consequently characterized by the same advantages and properties as have already been clarified. A repetitive description is omitted for this reason.
  • FIGS. 1a-1d and 5 - 7 show the vacuum drawer according to the invention from different angles.
  • FIG. 1a shows a perspective view from the top right
  • FIG. 1b corresponds to a page presentation
  • Figure 1c a plan view
  • Figure 1d a front view.
  • the drawer is suitable for use in a kitchen furniture, as it is characterized by an installation height of about 140 mm and therefore corresponds to the standard size of fitted kitchens.
  • the vacuum drawer comprises a drawer extension 10, which is guided longitudinally displaceably in a drawer body 12 via lateral guide rails.
  • the front cover 11 is handle-less, the drawer extension is designed as a push-pull device for opening and closing.
  • a vacuum chamber 20 is mounted, which is fluidly coupled with a vacuum pump of the vacuum drawer to pump the air from the sealed vacuum chamber 20.
  • the vacuum chamber 20 can be hermetically sealed via the cover 21 pivotally mounted on the chamber 20.
  • the lid 21 itself may be made of glass for design reasons.
  • a welding bar 22 which extends in the chamber interior in the extension direction of the drawer.
  • a filled with food bag is placed in the chamber 20 for vacuuming and the lid 21 hermetically sealed.
  • the bag can be sealed by means of the welding bar 22.
  • the bag opening to be sealed is placed on the welding bar 22, which presses against a pressure point after vacuuming and sealed by the action of heat.
  • the beam 22 can be pressed either against a counter-pressure bar 23 fastened to the cover 21 or against an alternative contact surface.
  • the vacuum pump is located behind the chamber 20 at the rear of the drawer extension 10.
  • the vacuum pump is fluidically coupled to the vacuum chamber 20 and pumps the air from the chamber 20 to generate vacuum. Due to the bottom-side mounting of the vacuum pump to the drawer extension 11, this is moved when extending the drawer extension 11 with the chamber 20.
  • the vacuum pump is designed as an oil-lubricated rotary vane vacuum pump.
  • the in Fig. 2 . 3 and 4 shown switch 40 is disposed in the drawer extension 10 of the vacuum drawer outside the vacuum chamber 20. It comprises a housing 41 which consists of an upper cover 42 and a lower cover 43 which are connected to one another, namely screwed. On the housing 41, namely on the upper cover 42, a connection piece 44 is provided, to which a vacuum line can be connected, which leads to the vacuum chamber 20. In the housing 41, a membrane is arranged, which divides the interior of the housing 41 into two chambers, namely a vacuum chamber and a pressure chamber. The membrane extends substantially transversely to the axial direction of the housing 41. The connecting piece 44 is connected to the vacuum chamber. The vacuum chamber is located substantially in the region of the upper cover 42. The pressure chamber is located substantially in the region of the lower cover 43rd
  • a cylinder rod 45 is fixed, which runs centrally in the axial direction of the housing 41.
  • the cylinder rod 45 projects out of the housing 41 on both sides. It has an inclined actuating surface 47 for actuating a switching cam 48, which is conical and formed on the vacuum chamber remote end of the cylinder rod 45 is arranged.
  • the inclined surface of the inclined actuating surface 47 faces outwardly with increasing distance from the vacuum chamber.
  • the switching cam 48 is located on a switching element 49 which is fixed to the housing 41, namely the lower cover 43 and the contacts 50 for connecting electrical lines, which are connected to the welding bar 22.
  • the switching cam 48 is movable in a direction transverse to the longitudinal direction of the cylinder rod 45.
  • the cylinder rod 45 extends in the vertical direction, while the switching cam 48 is movable in the horizontal direction.
  • the installation situation of the switch 40 is off Fig. 5-7 seen.
  • a thread 46 is provided, which is directed away from the upper cover 42. It is an external thread.
  • the switch 40 can be screwed by this thread 46 with a mounting plate 51.
  • the mounting plate 51 extends below the welding bar 22 parallel to and at a distance from the welding bar 22.
  • the thread 46 can be inserted through an opening in the mounting plate 41 and bolted to a nut 52.
  • the lid 21 of the vacuum drawer is closed.
  • a vacuum is generated in the vacuum chamber 20.
  • This vacuum is transmitted through the conduit to the spigot 44 in the vacuum chamber of the switch 40.
  • the pressure is lowered in the vacuum chamber of the switch 40, while it remains the same in the likewise hermetically sealed overpressure chamber of the switch 40.
  • the elastic membrane which separates the vacuum chamber from the pressure chamber, deformed in the direction of the upper cover 42 and in the direction of the thread 46.
  • the cylinder rod 45 connected to the diaphragm is thus also moved in the direction of the upper cover 42 and in the direction of the thread 46.
  • the protruding from the upper lid 42 end of the cylinder rod 45 is moved away from the upper cover 42 upwards.
  • the lower end of the cylinder rod 45 projecting from the lower lid 43 is moved in the direction of the lower lid 43.
  • the inclined actuating surface 47 with the switching cam 48 in engagement. Since the inclined actuating surface 47 extends in the outward direction, the switching cam 48 is moved into the housing of the switching element 49 in the further course of the movement. It can thereby trigger a contact within the switching element 49, which can be transmitted via the contacts 50 to the welding bar 22. As a result, the welding bar 22 can be supplied with energy.
  • the switch 40 ensures that the welding bar 22 can only be turned on when there is a vacuum in the vacuum chamber 20, which in turn can only be generated when the lid 21 is closed.
  • the lid 21 is opened, no vacuum is generated in the vacuum chamber 20, so that the cylinder rod 45 of the switch 40 can not move and the switching cam 48 of the switching element 49 can not be operated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Vacuum Packaging (AREA)
  • Drawers Of Furniture (AREA)
  • Package Closures (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Packages (AREA)

Description

Die Erfindung betrifft eine Vakuumschublade zum Vakuumieren von Lebensmitteln nach dem Oberbegriff des Anspruchs 1.The invention relates to a vacuum drawer for vacuuming food according to the preamble of claim 1.

Vakuumiergeräte umfassen eine Vakuumkammer, in die ein geeignetes Behältnis, beispielsweise in Form eines versiegelbaren Beutels, eingelegt wird. Innerhalb der Kammer erstreckt sich ein Schweißbalken, der in vertikaler Richtung höhenverstellbar ist. Das mit Lebensmitteln befüllte Behältnis wird in die Vakuumkammer eingelegt, diese im Anschluss über einen Deckel luftdicht verschlossen, um mittels einer Vakuumpumpe ein Kammervakuum zu erzeugen.Vacuum sealers comprise a vacuum chamber into which a suitable container, for example in the form of a sealable bag, is inserted. Within the chamber extends a welding bar, which is vertically adjustable in the vertical direction. The container filled with food is placed in the vacuum chamber, which is then hermetically sealed via a lid in order to generate a chamber vacuum by means of a vacuum pump.

Da der Schweißbalken zunächst in geöffneter Stellung positioniert ist, kann auch die Luft aus dem Behältnis abgesaugt werden. Im Anschluss wird der Schweißbalken höhenverstellt und der Beutel zwischen Schweißbalken und Gegenstelle eingeklemmt. Über die zugeführte Schweißenergie wird der Beutel versiegelt.Since the welding bar is initially positioned in the open position, the air can also be sucked out of the container. Afterwards, the sealing bar is adjusted in height and the bag is clamped between the welding bar and the counterpart. The bag is sealed via the supplied welding energy.

Die Vakuumschublade weist eine Sicherheitseinrichtung auf, die gewährleistet, dass der Schweißbalken nur dann mit Energie versorgt werden kann, wenn der Deckel geschlossen ist. Andernfalls besteht eine Verletzungsgefahr von Personen, die den Schweißbalken berühren und sich Verbrennungen zuziehen könnten. Eine bekannte Sicherheitseinrichtung arbeitet in Abhängigkeit von der Stellung des Deckels. Wenn diese Sicherheitseinrichtung fehlerhaft arbeitet, kann es vorkommen, dass der Schweißbalken mit Energie versorgt und geheizt wird, obwohl der Deckel offen ist.The vacuum drawer has a safety device that ensures that the welding bar can only be supplied with energy when the lid is closed. Otherwise, there is a risk of injury to people touching the welding bar and getting burned. A known safety device operates in dependence on the position of the lid. If this safety device malfunctions, the welding bar may be energized and heated even though the lid is open.

Aus der EP 2 862 807 A1 ist eine Vakuumschublade nach dem Oberbegriff des Anspruchs 1 bekannt.From the EP 2 862 807 A1 is a vacuum drawer according to the preamble of claim 1 is known.

Aufgabe der Erfindung ist es, eine Vakuumschublade der eingangs angegebenen Art mit einer verbesserten Sicherheitseinrichtung vorzuschlagen.The object of the invention is to propose a vacuum drawer of the type specified with an improved safety device.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruchs 1 gelöst. Die Vakuumschublade zum Vakuumieren von Lebensmitteln umfasst eine Vakuumkammer, die durch einen betätigbaren Deckel luftdicht verschließbar ist und in der ein verstellbarer Schweißbalken angeordnet ist. Der Deckel kann teilweise oder vollständig aus Glas bestehen.According to the invention, this object is solved by the features of claim 1. The vacuum drawer for vacuuming foodstuffs comprises a vacuum chamber, which is hermetically sealed by an actuatable lid and in which an adjustable sealing bar is arranged. The lid may be partially or completely made of glass.

Die Vakuumschublade umfasst ferner einen Schalter, der eine Energieversorgung des Schweißbalkens ermöglicht und der eine mit der Vakuumkammer verbundene Unterdruckkammer aufweist, die von einer Membran begrenzt ist. An der Membran ist eine Zylinderstange befestigt. Die Zylinderstange weist eine geneigte Betätigungsfläche zum Betätigen einer Schaltnocke auf.The vacuum drawer further comprises a switch which allows power supply of the welding bar and which has a vacuum chamber connected to the vacuum chamber, which is delimited by a membrane. On the membrane a cylinder rod is attached. The cylinder rod has an inclined actuating surface for actuating a switching cam.

Wenn in der Vakuumkammer ein Vakuum erzeugt wird, wird in der Unterdruckkammer der Druck in gleicher Weise abgesenkt. Auf der von der Unterdruckkammer abgewandten Seite der Membran bleibt der Druck gleich. Dadurch wird die elastische Membran in Richtung der Unterdruckkammer verformt. Die an der Membran befestigte Zylinderstange wird dadurch in entsprechender Weise bewegt. Wenn das erzeugte Vakuum ein bestimmtes Ausmaß erreicht hat, kann die geneigte Betätigungsfläche an der Zylinderstange die Schaltnocke betätigen, wodurch die Energiezufuhr an den Schweißbalken eingeschaltet werden kann.When a vacuum is generated in the vacuum chamber, the pressure in the vacuum chamber is lowered in the same way. On the side remote from the vacuum chamber side of the membrane, the pressure remains the same. As a result, the elastic membrane is deformed in the direction of the vacuum chamber. The attached to the diaphragm cylinder rod is thereby moved in a corresponding manner. When the vacuum generated has reached a certain extent, the inclined actuating surface on the cylinder rod can actuate the switching cam, whereby the power supply to the welding bar can be switched on.

Durch die Verbindung der Unterdruckkammer des Schalters mit der Vakuumkammer der Vakuumschublade ist gewährleistet, dass die Schaltnocke nur dann betätigt werden kann, wenn in der Vakuumkammer ein bestimmtes Vakuum herrscht, was wiederum nur dann möglich ist, wenn der Deckel der Vakuumschublade geschlossen ist. Dadurch ist gewährleistet, dass der Schweißbalken nur bei geschlossenem Deckel mit Energie versorgt werden kann, wodurch eine Verletzungsgefahr von Personen ausgeschlossen wird.By connecting the vacuum chamber of the switch with the vacuum chamber of the vacuum drawer ensures that the switching cam can only be operated when in the vacuum chamber, a certain vacuum prevails, which in turn is only possible when the lid of the vacuum drawer is closed. This ensures that the welding bar is closed only Cover can be supplied with energy, whereby a risk of injury is excluded by persons.

Dadurch, dass die Zylinderstange eine geneigte Betätigungsfläche zum Betätigen der Schaltnocke aufweist verläuft die Bewegungsrichtung der Schaltnocke quer, vorzugsweise in einem rechten Winkel, zur Bewegungsrichtung der Zylinderstange. Hierdurch ist eine platzsparende Anordnung möglich. Insbesondere kann die Zylinderstange in vertikaler Richtung angeordnet sein, so dass eine vertikale Bewegung der Zylinderstange in eine horizontale Bewegung der Schaltnocke umgelenkt werden kann.Characterized in that the cylinder rod has an inclined actuating surface for actuating the switching cam extends the direction of movement of the switching cam transversely, preferably at a right angle to the direction of movement of the cylinder rod. As a result, a space-saving arrangement is possible. In particular, the cylinder rod can be arranged in the vertical direction, so that a vertical movement of the cylinder rod can be deflected into a horizontal movement of the control cam.

Vorteilhafte Weiterbildungen sind in den Unteransprüchen beschrieben.Advantageous developments are described in the subclaims.

Vorteilhaft ist es, wenn die Betätigungsfläche der Zylinderstange kegelförmig ist. Eine derartige Betätigungsfläche ist besonders einfach herstellbar.It is advantageous if the actuating surface of the cylinder rod is conical. Such an actuating surface is particularly easy to produce.

Die Betätigungsfläche der Zylinderstange ist vorzugsweise an dem dem Vakuumzylinder abgewandten Ende der Zylinderstange angeordnet. Sie befindet sich vorzugsweise auf der dem Vakuumzylinder abgewandten Seite des Gehäuses des Schalters.The actuating surface of the cylinder rod is preferably arranged on the end remote from the cylinder of the cylinder rod. It is preferably located on the side facing away from the vacuum cylinder side of the housing of the switch.

Die Vakuumschublade ist zweckmäßigerweise zum Einbau innerhalb eines Möbelstückes geeignet. Die Abmessung der Vakuumschublade entspricht vorzugsweise etwaigen Normvorgaben für die Dimensionierung eines derartigen Möbelstückes. Insbesondere dient die Vakuumschublade zum Einbau in eine Küchenschublade.The vacuum drawer is suitably suitable for installation within a piece of furniture. The dimension of the vacuum drawer preferably corresponds to any standard specifications for the dimensioning of such a piece of furniture. In particular, the vacuum drawer is used for installation in a kitchen drawer.

Dementsprechend betrifft die Erfindung auch ein Möbelstück mit eingebauter Vakuumschublade gemäß der vorliegenden Erfindung. Sowohl das Möbelstück als auch die Vakuumschublade zeichnen sich folglich durch dieselben Vorteile und Eigenschaften aus, wie sie bereits verdeutlicht wurden. Auf eine wiederholende Beschreibung wird aus diesem Grund verzichtet.Accordingly, the invention also relates to a piece of furniture with built-in vacuum drawer according to the present invention. Both the piece of furniture and the vacuum drawer are consequently characterized by the same advantages and properties as have already been clarified. A repetitive description is omitted for this reason.

Weitere Vorteile und Eigenschaften der Erfindung sollen im folgenden anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert werden. Es zeigen:

Fig. 1a - 1d
die erfindungsgemäße Vakuumschublade aus vier unterschiedlichen Blickwinkeln,
Fig. 2
einen Schalter zum Betätigen des Schweißbalkens der Vakuumschublade in einer perspektivischen Ansicht von schräg oben,
Fig. 3
den Schalter gemäß Fig. 2 in einer Seitenansicht,
Fig. 4
den Schalter gemäß Fig. 2 und 3 in einer Ansicht von schräg unten,
Fig. 5
eine der Fig. 1a entsprechende Darstellung der Vakuumschublade mit einer offenen Seitenfläche,
Fig. 6
eine der Fig. 1a entsprechende Darstellung der Vakuumschublade mit einer teilweise offenen Seitenfläche und
Fig. 7
eine der Fig. 5 entsprechende Darstellung der Vakuumschublade mit geschlossenem Deckel.
Further advantages and features of the invention will be explained below with reference to an embodiment shown in the drawings. Show it:
Fig. 1a - 1d
the vacuum drawer of the invention from four different angles,
Fig. 2
a switch for actuating the welding bar of the vacuum drawer in a perspective view obliquely from above,
Fig. 3
the switch according to Fig. 2 in a side view,
Fig. 4
the switch according to Fig. 2 and 3 in a view from below,
Fig. 5
one of the Fig. 1a corresponding representation of the vacuum drawer with an open side surface,
Fig. 6
one of the Fig. 1a corresponding representation of the vacuum drawer with a partially open side surface and
Fig. 7
one of the Fig. 5 corresponding representation of the vacuum drawer with closed lid.

Die Figuren 1a - 1d und 5 - 7 zeigen die erfindungsgemäße Vakuumschublade aus unterschiedlichen Blickwinkeln. Figur 1a zeigt eine perspektivische Darstellung von rechts oben, Figur 1b entspricht einer Seitendarstellung, Figur 1c einer Draufsicht und Figur 1d einer Frontansicht. Die Schublade eignet sich für den Einsatz in einem Küchenmöbel, da sie sich durch eine Einbauhöhe von ca. 140 mm auszeichnet und demnach dem Normmaß von Einbauküchen entspricht.The FIGS. 1a-1d and 5 - 7 show the vacuum drawer according to the invention from different angles. FIG. 1a shows a perspective view from the top right, FIG. 1b corresponds to a page presentation, Figure 1c a plan view and Figure 1d a front view. The drawer is suitable for use in a kitchen furniture, as it is characterized by an installation height of about 140 mm and therefore corresponds to the standard size of fitted kitchens.

Die Vakuumschublade umfasst einen Schubladenauszug 10, der in einem Schubladenkorpus 12 über seitliche Führungsschienen längsverschieblich geführt ist. Im dargestellten Ausführungsbeispiel ist die Frontabdeckung 11 grifflos, der Schubladenauszug ist als Push-Pull-Einrichtung zum Öffnen und Schließen konstruiert. Innerhalb des Schubladenauszuges ist eine Vakuumkammer 20 gelagert, die mit einer Vakuumpumpe der Vakuumschublade strömungstechnisch gekoppelt ist, um die Luft aus der verschlossenen Vakuumkammer 20 abzupumpen. Die Vakuumkammer 20 kann über den schwenkbar an der Kammer 20 montierten Deckel 21 luftdicht verschlossen werden. Der Deckel 21 selbst kann aus Designgründen aus Glas gefertigt sein.The vacuum drawer comprises a drawer extension 10, which is guided longitudinally displaceably in a drawer body 12 via lateral guide rails. In the illustrated embodiment, the front cover 11 is handle-less, the drawer extension is designed as a push-pull device for opening and closing. Within the drawer extension, a vacuum chamber 20 is mounted, which is fluidly coupled with a vacuum pump of the vacuum drawer to pump the air from the sealed vacuum chamber 20. The vacuum chamber 20 can be hermetically sealed via the cover 21 pivotally mounted on the chamber 20. The lid 21 itself may be made of glass for design reasons.

Für das Versiegeln eines eingelegten Beutels dient ein Schweißbalken 22, der sich im Kammerinneren in Auszugsrichtung der Schublade erstreckt. Ein mit Lebensmitteln befüllter Beutel wird zum Vakuumieren in die Kammer 20 eingelegt und der Deckel 21 luftdicht verschlossen. Nach dem Auspumpen der Kammer 20 mittels der nicht dargestellten Vakuumpumpe kann der Beutel mittels des Schweißbalkens 22 versiegelt werden. Dazu wird die zu versiegelnde Beutelöffnung auf dem Schweißbalken 22 abgelegt, der diesen nach dem Vakuumieren gegen eine Andruckstelle drückt und durch Hitzeeinwirkung versiegelt. Der Balken 22 kann entweder an einen am Deckel 21 befestigten Gegendruckbalken 23 oder gegen eine alternative Anpressfläche gepresst werden.For sealing an inserted bag is a welding bar 22 which extends in the chamber interior in the extension direction of the drawer. A filled with food bag is placed in the chamber 20 for vacuuming and the lid 21 hermetically sealed. After pumping the chamber 20 by means of Vacuum pump, not shown, the bag can be sealed by means of the welding bar 22. For this purpose, the bag opening to be sealed is placed on the welding bar 22, which presses against a pressure point after vacuuming and sealed by the action of heat. The beam 22 can be pressed either against a counter-pressure bar 23 fastened to the cover 21 or against an alternative contact surface.

Die Vakuumpumpe sitzt hinter der Kammer 20 am hinteren Teil des Schubladenauszuges 10. Die Vakuumpumpe ist mit der Vakuumkammer 20 strömungstechnisch gekoppelt und pumpt zur Vakuumerzeugung die Luft aus der Kammer 20 ab. Aufgrund der bodenseitigen Montage der Vakuumpumpe an dem Schubladenauszug 11 wird diese beim Ausfahren des Schubladenauszuges 11 mit der Kammer 20 mitbewegt. Die Vakuumpumpe ist als ölgeschmierte Drehschiebervakuumpumpe ausgestaltet.The vacuum pump is located behind the chamber 20 at the rear of the drawer extension 10. The vacuum pump is fluidically coupled to the vacuum chamber 20 and pumps the air from the chamber 20 to generate vacuum. Due to the bottom-side mounting of the vacuum pump to the drawer extension 11, this is moved when extending the drawer extension 11 with the chamber 20. The vacuum pump is designed as an oil-lubricated rotary vane vacuum pump.

Der in Fig. 2, 3 und 4 gezeigte Schalter 40 ist in dem Schubladenauszug 10 der Vakuumschublade außerhalb der Vakuumkammer 20 angeordnet. Er umfasst ein Gehäuse 41, das aus einem Oberdeckel 42 und einem Unterdeckel 43 besteht, die miteinander verbunden, nämlich verschraubt sind. An dem Gehäuse 41, nämlich an dem Oberdeckel 42, ist ein Anschlussstutzen 44 vorgesehen, an dem eine Vakuumleitung anschließbar ist, die zu der Vakuumkammer 20 führt. In dem Gehäuse 41 ist eine Membran angeordnet, die den Innenraum des Gehäuses 41 in zwei Kammern teilt, nämlich eine Unterdruckkammer und eine Überdruckkammer. Die Membran verläuft im wesentlichen quer zur Achsrichtung des Gehäuses 41. Der Anschlussstutzen 44 ist mit der Unterdruckkammer verbunden. Die Unterdruckkammer befindet sich im wesentlichen im Bereich des Oberdeckels 42. Die Überdruckkammer befindet sich im wesentlichen im Bereich des Unterdeckels 43.The in Fig. 2 . 3 and 4 shown switch 40 is disposed in the drawer extension 10 of the vacuum drawer outside the vacuum chamber 20. It comprises a housing 41 which consists of an upper cover 42 and a lower cover 43 which are connected to one another, namely screwed. On the housing 41, namely on the upper cover 42, a connection piece 44 is provided, to which a vacuum line can be connected, which leads to the vacuum chamber 20. In the housing 41, a membrane is arranged, which divides the interior of the housing 41 into two chambers, namely a vacuum chamber and a pressure chamber. The membrane extends substantially transversely to the axial direction of the housing 41. The connecting piece 44 is connected to the vacuum chamber. The vacuum chamber is located substantially in the region of the upper cover 42. The pressure chamber is located substantially in the region of the lower cover 43rd

An der Membran ist eine Zylinderstange 45 befestigt, die mittig in Achsrichtung des Gehäuses 41 verläuft. Die Zylinderstange 45 ragt auf beiden Seiten aus dem Gehäuse 41 heraus. Sie weist eine geneigte Betätigungsfläche 47 zum Betätigen einer Schaltnocke 48 auf, die kegelförmig ausgebildet ist und die an dem der Unterdruckkammer abgewandten Ende der Zylinderstange 45 angeordnet ist. Die Schrägfläche der geneigten Betätigungsfläche 47 weist mit zunehmender Entfernung von der Unterdruckkammer nach außen. Die Schaltnocke 48 befindet sich an einem Schaltelement 49, das an dem Gehäuse 41, nämlich dem Unterdeckel 43 befestigt ist und das Kontakte 50 zum Anschluss elektrischer Leitungen aufweist, die mit dem Schweißbalken 22 verbunden sind. Die Schaltnocke 48 ist in einer Richtung quer zur Längsrichtung der Zylinderstange 45 beweglich. Im Ausführungsbeispiel verläuft die Zylinderstange 45 in vertikaler Richtung, während die Schaltnocke 48 in horizontaler Richtung beweglich ist.On the membrane, a cylinder rod 45 is fixed, which runs centrally in the axial direction of the housing 41. The cylinder rod 45 projects out of the housing 41 on both sides. It has an inclined actuating surface 47 for actuating a switching cam 48, which is conical and formed on the vacuum chamber remote end of the cylinder rod 45 is arranged. The inclined surface of the inclined actuating surface 47 faces outwardly with increasing distance from the vacuum chamber. The switching cam 48 is located on a switching element 49 which is fixed to the housing 41, namely the lower cover 43 and the contacts 50 for connecting electrical lines, which are connected to the welding bar 22. The switching cam 48 is movable in a direction transverse to the longitudinal direction of the cylinder rod 45. In the exemplary embodiment, the cylinder rod 45 extends in the vertical direction, while the switching cam 48 is movable in the horizontal direction.

Die Einbausituation der Schalter 40 ist aus Fig. 5 - 7 ersichtlich. An dem Gehäuse 41, insbesondere an dem Oberdeckel 42, ist ein Gewinde 46 vorgesehen, das von dem Oberdeckel 42 weg gerichtet ist. Es handelt sich um ein Außengewinde. Der Schalter 40 kann durch dieses Gewinde 46 mit einem Befestigungsblech 51 verschraubt werden. Das Befestigungsblech 51 verläuft unterhalb des Schweißbalkens 22 parallel zu und im Abstand von dem Schweißbalken 22. Das Gewinde 46 kann durch eine Öffnung in dem Befestigungsblech 41 hindurchgesteckt werden und mit einer Mutter 52 verschraubt werden.The installation situation of the switch 40 is off Fig. 5-7 seen. On the housing 41, in particular on the upper cover 42, a thread 46 is provided, which is directed away from the upper cover 42. It is an external thread. The switch 40 can be screwed by this thread 46 with a mounting plate 51. The mounting plate 51 extends below the welding bar 22 parallel to and at a distance from the welding bar 22. The thread 46 can be inserted through an opening in the mounting plate 41 and bolted to a nut 52.

Im Betrieb wird der Deckel 21 der Vakuumschublade geschlossen. Durch die Vakuumpumpe wird in der Vakuumkammer 20 ein Vakuum erzeugt. Dieses Vakuum wird durch die Leitung zu dem Anschlussstutzen 44 in die Unterdruckkammer des Schalters 40 übertragen. Dadurch wird in der Unterdruckkammer des Schalters 40 der Druck abgesenkt, während er in der ebenfalls luftdicht abgeschlossenen Überdruckkammer des Schalters 40 gleichbleibt. Hierdurch wird die elastische Membran, die die Unterdruckkammer von der Überdruckkammer trennt, in Richtung des Oberdeckels 42 und in Richtung des Gewindes 46 verformt. Die mit der Membran verbundene Zylinderstange 45 wird damit ebenfalls in Richtung des Oberdeckels 42 und in Richtung des Gewindes 46 bewegt. Das aus dem Oberdeckel 42 herausragende Ende der Zylinderstange 45 wird von dem Oberdeckel 42 weg nach oben bewegt. Gleichzeitig wird das aus dem Unterdeckel 43 herausragende, untere Ende der Zylinderstange 45 in Richtung des Unterdeckels 43 bewegt. Dadurch gelangt die geneigte Betätigungsfläche 47 mit der Schaltnocke 48 in Eingriff. Da die geneigte Betätigungsfläche 47 in Richtung nach außen verläuft, wird die Schaltnocke 48 im weiteren Verlauf der Bewegung in das Gehäuse des Schaltelements 49 hinein bewegt. Sie kann dadurch innerhalb des Schaltelements 49 einen Kontakt auslösen, der über die Kontakte 50 zu dem Schweißbalken 22 übertragen werden kann. Dadurch kann der Schweißbalken 22 mit Energie versorgt werden.In operation, the lid 21 of the vacuum drawer is closed. By the vacuum pump, a vacuum is generated in the vacuum chamber 20. This vacuum is transmitted through the conduit to the spigot 44 in the vacuum chamber of the switch 40. As a result, the pressure is lowered in the vacuum chamber of the switch 40, while it remains the same in the likewise hermetically sealed overpressure chamber of the switch 40. As a result, the elastic membrane, which separates the vacuum chamber from the pressure chamber, deformed in the direction of the upper cover 42 and in the direction of the thread 46. The cylinder rod 45 connected to the diaphragm is thus also moved in the direction of the upper cover 42 and in the direction of the thread 46. The protruding from the upper lid 42 end of the cylinder rod 45 is moved away from the upper cover 42 upwards. At the same time, the lower end of the cylinder rod 45 projecting from the lower lid 43 is moved in the direction of the lower lid 43. This way the inclined actuating surface 47 with the switching cam 48 in engagement. Since the inclined actuating surface 47 extends in the outward direction, the switching cam 48 is moved into the housing of the switching element 49 in the further course of the movement. It can thereby trigger a contact within the switching element 49, which can be transmitted via the contacts 50 to the welding bar 22. As a result, the welding bar 22 can be supplied with energy.

Durch den Schalter 40 ist gewährleistet, dass der Schweißbalken 22 nur dann eingeschaltet werden kann, wenn in der Vakuumkammer 20 ein Vakuum herrscht, welches wiederum nur dann erzeugt werden kann, wenn der Deckel 21 geschlossen ist. Wenn der Deckel 21 hingegen geöffnet ist, wird in der Vakuumkammer 20 kein Vakuum erzeugt, so dass sich die Zylinderstange 45 des Schalters 40 nicht bewegen kann und die Schaltnocke 48 des Schaltelements 49 nicht betätigt werden kann.By the switch 40 ensures that the welding bar 22 can only be turned on when there is a vacuum in the vacuum chamber 20, which in turn can only be generated when the lid 21 is closed. On the other hand, when the lid 21 is opened, no vacuum is generated in the vacuum chamber 20, so that the cylinder rod 45 of the switch 40 can not move and the switching cam 48 of the switching element 49 can not be operated.

Claims (4)

  1. Vacuum drawer for vacuum-sealing of food products, comprising a vacuum chamber (20) which is closable in an air-tight manner by an actuable lid (21) and in which an adjustable sealing bar (22) is arranged,
    characterized by
    a switch (40), by means of which an energy supply for the sealing bar (22) can be turned-on only when the generated vacuum has reached a certain level in the vacuum chamber (20), wherein the switch (40) comprises a negative-pressure chamber connected to the vacuum chamber (20), which is delimited by a membrane, on which a cylinder rod (45) is fastened, which comprises an inclined actuation surface (47) for the actuation of a switch cam (48).
  2. Vacuum drawer according to claim 1, characterized in that the actuation surface (47) is of conical shape.
  3. Vacuum drawer according to claim 1 or 2, characterized in that the actuation surface (47) is arranged on the end of the cylinder rod (45) that faces away from the negative-pressure chamber.
  4. Furniture item with integrated vacuum drawer according to one of claims 1 to 3, in particular kitchen drawer.
EP16192543.3A 2015-10-19 2016-10-06 Vacuum drawer for vacuuming food Active EP3159271B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16192543T PL3159271T3 (en) 2015-10-19 2016-10-06 Vacuum drawer for vacuuming food

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015013963.0A DE102015013963B4 (en) 2015-10-19 2015-10-19 Vacuum drawer for vacuuming food

Publications (2)

Publication Number Publication Date
EP3159271A1 EP3159271A1 (en) 2017-04-26
EP3159271B1 true EP3159271B1 (en) 2018-12-12

Family

ID=57123850

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16192543.3A Active EP3159271B1 (en) 2015-10-19 2016-10-06 Vacuum drawer for vacuuming food

Country Status (5)

Country Link
EP (1) EP3159271B1 (en)
DE (1) DE102015013963B4 (en)
ES (1) ES2714793T3 (en)
PL (1) PL3159271T3 (en)
TR (1) TR201903601T4 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1640394B1 (en) * 1967-07-06 1972-01-20 Herion Werke Kg PRESSURE DEPENDENT ELECTRIC SWITCH
US20110126986A1 (en) 2009-12-01 2011-06-02 Po Ha Cheung Easy-to-operate bag sealer
IT1400307B1 (en) * 2010-05-25 2013-05-24 Reber S R L MACHINE FOR SEALING VACUUM PACKAGES AND CORRESPONDING METHOD OF CONTROL.
DE102012017827B4 (en) * 2012-09-10 2021-07-15 Multivac Sepp Haggenmüller Se & Co. Kg Method for operating a chamber machine
DE102013014656A1 (en) 2013-09-03 2015-03-05 Gronbach Forschungs- Und Entwicklungs Gmbh & Co. Kg Device for vacuuming food and drawer
DE102013017248A1 (en) * 2013-10-16 2015-04-16 Michatek, K.S. Vacuum drawer and kitchen furniture
US20150135641A1 (en) 2013-11-19 2015-05-21 Zhihe Hu Cavity-type vacuum sealing machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
TR201903601T4 (en) 2019-04-22
ES2714793T3 (en) 2019-05-30
EP3159271A1 (en) 2017-04-26
DE102015013963A1 (en) 2017-04-20
PL3159271T3 (en) 2019-06-28
DE102015013963B4 (en) 2019-03-28

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