EP1029476A2 - Refrigerated display stand - Google Patents

Refrigerated display stand Download PDF

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Publication number
EP1029476A2
EP1029476A2 EP00100405A EP00100405A EP1029476A2 EP 1029476 A2 EP1029476 A2 EP 1029476A2 EP 00100405 A EP00100405 A EP 00100405A EP 00100405 A EP00100405 A EP 00100405A EP 1029476 A2 EP1029476 A2 EP 1029476A2
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EP
European Patent Office
Prior art keywords
cover film
cover
layers
access opening
cooling shelf
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.)
Granted
Application number
EP00100405A
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German (de)
French (fr)
Other versions
EP1029476B1 (en
EP1029476A3 (en
Inventor
Paul Isfort
Oliver Eischeid
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Remis Gesellschaft fuer Entwicklung und Vertrieb von Technischer Elemente mbH
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Remis Gesellschaft fuer Entwicklung und Vertrieb von Technischer Elemente mbH
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Publication of EP1029476A2 publication Critical patent/EP1029476A2/en
Publication of EP1029476A3 publication Critical patent/EP1029476A3/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0439—Cases or cabinets of the open type
    • A47F3/0469—Details, e.g. night covers

Definitions

  • the invention relates to a refrigerated shelf with an access opening, which can be closed by a cover device is.
  • Cooling shelves are used for refrigerated storage and presentation of Goods in grocery stores.
  • the cooling shelves are in the Rule of a shelf with several shelves, which by closed at the bottom, top, side and rear by refrigerated shelves and has an access opening towards the front, through the goods lying on the shelves can be taken directly from customers.
  • the interior of the Cooling shelves are cooled, for example, by circulating air cooling. Because of the large access opening there are cold losses of the cooling shelf considerably. For this reason, the cooling shelf outside the access times, i.e. usually between Closure and opening of the grocery store by a Cover device closed. Because of the small space requirement have flexible cover films as a cover device enforced, which are designed as roller blind devices.
  • the Covering roller blind is pulled out during non-access times and in this way in front of or in the access opening stretched so that the cold losses by preventing the Air exchange between the cooling rack interior and the surrounding area considerably be reduced. Because of the low temperature of the clamped by the cooling air cooled cover film compared to the Ambient air forms on the outside of the cover film the ambient humidity condensate, which when rewound the cover film interferes and the durability of the cover film decreased. To prevent condensation, perforated Covering films used by the cooling air from the interior of the refrigerated shelves can pass through, so that the condensation of Prevents humidity on the outside of the cover film becomes. However, cooling air escapes the perforation has significant cold losses.
  • the object of the invention is for a refrigerated shelf with an access opening to create an improved covering device.
  • the cooling shelf according to the invention has a covering device for the access opening next to the first layer of flexible cover film additionally a second layer of flexible cover film, which in a certain distance from the first layer of cover film can be stretched in front of or in the access opening.
  • the Access is through a double layer of cover closable, with an insulating air cushion between the layers is formed.
  • the cold insulation of the two-layer covering device is opposite a single-layer covering device has been significantly improved, because the air cushion between the two layers is a good heat insulator against ready-made cold losses.
  • the cold losses can be reduced considerably in this way.
  • the two-ply cover device the temperature difference between the outside and the inside each layer significantly reduced, so that the respective No more condensate settles on the outside of each cover sheet. There is no need to perforate the cover film layer, which is why the cold losses by another considerable Amount are reduced. Due to the double-layer design of the Covering film therefore has two different effects, the add up to a significant reduction in cold losses.
  • the covering device is preferably a roller blind device formed so that the two layers of cover film from one edge the access opening can be pulled out to the opposite edge are.
  • the blind device is preferably at the top of the Access opening mounted so that the cover film layers for closing from the top to the bottom of the access opening can be pulled out. This way one becomes easy manageable and space-saving covering device realized.
  • the roller blind device trained like a pulley, a single Cover film forms the two cover film layers, and one cylindrical fixed roller to roll up and down the cover sheet and a cylindrical loose roll between the two cover film layers is provided.
  • the fixed Roll serves to roll up and unroll the cover film
  • the loose roll is wrapped around the cover film with approximately 180 °.
  • the loose roller therefore deflects the cover film by 180 °, for smoothing the cover film and at the same time for spacing the two layers of cover film from each other.
  • the cover film is therefore at one end attached to the fixed roll and roll or rollable from this.
  • the other end of the cover film is on attached to the blind device or in its vicinity.
  • the cover film layers are preferably vertical for closing extendable in front of the access opening.
  • the distance between the Cover foil layers almost the same everywhere and is between 1.0 and 20.0 cm, especially about 2.0 cm.
  • the roller blind device preferably has a drive for opening and closing Pull in the cover foil layers.
  • the pulley system is preferably the fixed rotatable Roller for rolling up and unrolling the cover film driven. It
  • the loosely rotatable roller can also be in the closed position Cover device or in the reverse direction by the drive be moved.
  • the fixed role a rotary actuator.
  • a cover film layer has a flexible sealing tape on each side edge on, each with a fixed sealing strip on the side edges the access opening cooperates magnetically in such a way that the side edge of the extended cover sheet layer on the sealing strip rests.
  • the sealing tape can be, for example magnetizable metal strips or a corresponding one be metallic paint in the edge area of the cover sheet concerned is sewn on or glued on.
  • the sealing strip can consist of a permanent magnet that runs along the side edges the access opening is attached throughout. On in this way, the side edges of the cover sheet are through the sealing strip is magnetically attracted so that it is largely sealing rest on the sealing strip. This makes a gap-free Closure of the side edges of the access opening also realized, thereby avoiding further cold losses.
  • the stationary cover film layer has the pulley-like roller blind device Sealing tape, which attach to the sealing strip without friction and has it peeled off.
  • the combination of the pulley system with the magnetic seal is therefore particularly advantageous because in the pulley-like A cover sheet layer is always fixed, which is why this situation is not pushed as such, but to a certain extent is placed on the cover opening. For this Reason can be fixed with the fixed layer of cover film seal connecting the side edges of the access opening realize.
  • the cover film is preferably designed to be airtight. A Perforation of the cover film to avoid condensation not because of the air cushion between the cover film layers more needed. Therefore, the cover film can be absolutely airtight be trained, which in turn reduces the cold losses become.
  • the cover film layers are one-sided reflective with infrared radiation Provide coating, which are arranged opposite each other are.
  • the coating is therefore always an air cushion directed between the two layers of cover film. Like attempts have resulted are the heat radiation losses through the Cover film layers through this arrangement the least.
  • a cooling shelf 10 is shown, the one so-called vertical sales cooling rack with forced-air cooling.
  • Cooling shelves are used in grocery stores, to store goods to be cooled and at the same time suitable for sale showcase.
  • the cooling shelf 10 shown in Fig. 1 has a bottom wall 12, a back wall 13, a top wall 14 and two side walls 15, which together enclose a cooling space 16.
  • At the Back wall 13 are two shelves slightly inclined towards the front down 18 arranged.
  • the front of the refrigerated shelf 10 has one extending substantially over the entire front Access opening 20 through which a customer directly can access the refrigerated goods stored in the interior 16.
  • the cooling shelf 10 has a forced-air cooling, which is formed in the is from an air inlet 22 on the bottom opening edge, the Floor duct 23, in the course of which a fan 24 and a cooling device 25 are arranged.
  • the sucked in through the air inlet 22 and cooled air by the cooling device 25 further through a rear wall channel 27 and an adjoining one Ceiling wall duct 29 led to an air outlet 32.
  • the cooled air flows through the air outlet 32 and forms in the access opening 20 a cold air curtain between the Cold air outlet 32 and the cold air inlet 22.
  • Rear wall channel 27 are further openings to the interior side provided by the cooling air directly into the cooling space 16 and in particular flows directly onto the shelves 18.
  • a cover device 40 is in the Ceiling wall 14 installed.
  • the cover device is a roller blind device which contains a cover film 42, that as a night cover to close the access opening 20 can be lowered into the access opening 20.
  • the cover device 40 a roller blind designed as a pulley system.
  • the roller blind device has a single flexible cover film 42 on in the closed state (FIG. 4) of the blind device 40 a first inner cover sheet layer 44 and a second one outside cover sheet layer 46 forms.
  • a layer is formed between the two cover film layers 44, 46 air-filled space 47, which is a good heat insulator releases and thus cold losses of the cooling rack interior 16 counteracts. Furthermore, through the gap air cushion 47 also the formation of condensate on the respective warmer Sides of the cover foil layers 44,46 prevented.
  • the roller blind device 40 has a fixed, rotatable, cylindrical one Roll 48 on the top of the access opening 20 is arranged.
  • the fixed roller 48 has an electric one Rotary drive on, through which the cover film is rolled up and down can be. While the one end of the cover sheet 42 firmly the fixed roller 48 is attached, the other end 50 is the Cover film 42 firmly on the housing 52 of the cover device 40 attached.
  • a loose second rotatable cylindrical one Roll 54 provided that serves as a weighting role. The second roller 54 pulls the two layers by its own weight 44,46 down so that the cover film 42 is vertical and is spanned smoothly in the access opening 20, as in 3 and 4 are shown.
  • the cover sheet 42 is an airtight, flexible and Fabric-reinforced plastic film that is one-sided with infrared radiation reflective coating is provided.
  • the Coating is on the side facing the space the cover sheet layers 44,46 applied.
  • the loose roller 54 has a diameter of approximately 2.0 cm.
  • the two film layers are also at the upper end of the access opening 20 44.46 stored at a distance of approximately 2.0 cm, so that there is a largely constant air cushion of 2.0 cm thickness results.
  • the covering film 60 shown in FIG. 5 has on the outside the outer second cover layer 65 as a sealing tape a flexible metal band 62 that extends over the entire height the access opening 20 extends.
  • a magnetic sealing strip 65 over the entire Height of the access opening 20 is arranged.
  • the metal sealing tape 62 lies on the gap-free magnetic sealing strip 65, which ensures a gap-free seal in the edge area.
  • the friction-free creation of the rolled Cover film 60 is possible because the second Cover film layer 66 is vertically fixed to the cover device housing 52 is attached, as can be seen in Fig. 2-4. When rolling up of the cover film 60, the cover film layer 66 peels off from the sealing strip 65 without friction.
  • a labyrinth seal is shown, which is essentially is formed from a vertical U-profile 72, in the side opening of the side edges of the two layers of cover film 74, 76 and the respective end of the loose roll 54 immerse yourself.
  • the labyrinth seal shown also offers one good sealing against convection cold losses and serves at the same time as a guide for the roller 54 and the cover film 70.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Refrigerator Housings (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Temperature-Responsive Valves (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Laminated Bodies (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The refrigerated shelf has a display compartment (20) which can be closed by stretching first (40) and second (46) layers of flexible film over it. The two layers are separated by a distance of 1.0 - 20.0 cm, preferably 2 cm. they may have an infra-red reflecting coating on the surfaces which face each other.

Description

Die Erfindung bezieht sich auf ein Kühlregal mit einer Zugriffsöffnung, die durch eine Abdeckvorrichtung verschließbar ist.The invention relates to a refrigerated shelf with an access opening, which can be closed by a cover device is.

Kühlregale dienen der gekühlten Lagerung und Präsentation von Waren in Lebensmittelgeschäften. Die Kühlregale bestehen in der Regel aus einem mehrere Regalböden aufweisenden Regal, das von unten, oben, seitlich und hinten durch Kühlregalwände verschlossen ist und zur Vorderseite hin eine Zugriffsöffnung aufweist, durch die die auf den Regalböden liegenden Waren durch den Kunden direkt entnommen werden können. Der Innenraum des Kühlregals wird beispielsweise durch eine Umluftkühlung gekühlt. Wegen der großen Zugriffsöffnung sind die Kälteverluste des Kühlregales erheblich. Aus diesem Grund wird das Kühlregal außerhalb der Zugriffszeiten, d.h. in der Regel zwischen Schließung und Öffnung des Lebensmittelgeschäftes, durch eine Abdeckvorrichtung verschlossen. Wegen des geringen Platzbedarfes haben sich als Abdeckvorrichtung flexible Abdeckfolien durchgesetzt, die als Rollovorrichtungen ausgebildet sind. Das Abdeckfolienrollo wird während der Nichtzugriffszeiten ausgezogen und auf diese Weise vor der bzw. in der Zugriffsöffnung aufgespannt, so daß die Kälteverluste durch Verhinderung des Luftaustausches zwischen Kühlregalinnenraum und Umgebung erheblich reduziert werden. Wegen der geringen Temperatur der aufgespannten durch die Kühlluft gekühlten Abdeckfolie gegenüber der Umgebungsluft bildet sich an der Außenseite der Abdeckfolie aus der Umgebungsluftfeuchtigkeit Kondensat, das beim Wiederaufrollen der Abdeckfolie stört und die Haltbarkeit der Abdeckfolie verringert. Um Kondensation zu verhindern, werden perforierte Abdeckfolien verwendet, durch die Kühlluft aus dem Kühlregalinnenraum hindurchtreten kann, so daß die Kondensation von Luftfeuchtigkeit an der Außenseite der Abdeckfolie verhindert wird. Allerdings treten durch das Ausströmen von Kühlluft durch die Perforation erhebliche Kälteverluste auf.Cooling shelves are used for refrigerated storage and presentation of Goods in grocery stores. The cooling shelves are in the Rule of a shelf with several shelves, which by closed at the bottom, top, side and rear by refrigerated shelves and has an access opening towards the front, through the goods lying on the shelves can be taken directly from customers. The interior of the Cooling shelves are cooled, for example, by circulating air cooling. Because of the large access opening there are cold losses of the cooling shelf considerably. For this reason, the cooling shelf outside the access times, i.e. usually between Closure and opening of the grocery store by a Cover device closed. Because of the small space requirement have flexible cover films as a cover device enforced, which are designed as roller blind devices. The Covering roller blind is pulled out during non-access times and in this way in front of or in the access opening stretched so that the cold losses by preventing the Air exchange between the cooling rack interior and the surrounding area considerably be reduced. Because of the low temperature of the clamped by the cooling air cooled cover film compared to the Ambient air forms on the outside of the cover film the ambient humidity condensate, which when rewound the cover film interferes and the durability of the cover film decreased. To prevent condensation, perforated Covering films used by the cooling air from the interior of the refrigerated shelves can pass through, so that the condensation of Prevents humidity on the outside of the cover film becomes. However, cooling air escapes the perforation has significant cold losses.

Aufgabe der Erfindung ist es, für ein Kühlregal mit einer Zugriffsöffnung eine verbesserte Abdeckvorrichtung zu schaffen.The object of the invention is for a refrigerated shelf with an access opening to create an improved covering device.

Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved with the features of the claim 1 solved.

Das erfindungsgemäße Kühlregal weist als Abdeckvorrichtung für die Zugriffsöffnung neben der ersten Lage flexibler Abdeckfolie zusätzlich eine zweite Lage flexibler Abdeckfolie auf, die in einem bestimmten Abstand beabstandet von der ersten Abdeckfolienlage vor oder in der Zugriffsöffnung auf spannbar ist. Die Zugriffsöffnung ist also durch eine doppelte Lage Abdeckfolie verschließbar, wobei zwischen den Lagen ein isolierendes Luftpolster gebildet wird.The cooling shelf according to the invention has a covering device for the access opening next to the first layer of flexible cover film additionally a second layer of flexible cover film, which in a certain distance from the first layer of cover film can be stretched in front of or in the access opening. The Access is through a double layer of cover closable, with an insulating air cushion between the layers is formed.

Die Kälteisolation der zweilagigen Abdeckvorrichtung ist gegenüber einer einlagigen Abdeckvorrichtung erheblich verbessert, da das Luftpolster zwischen den beiden Lagen einen guten Wärmeisolator gegen Konfektionskälteverluste darstellt. Die Kälteverluste können auf diese Weise ganz erheblich reduziert werden. Ferner wird durch die Zweilagigkeit der Abdeckvorrichtung die Temperaturdifferenz zwischen der Außen- und der Innenseite jeder Lage erheblich reduziert, so daß sich an der jeweiligen Außenseite jeder Abdeckfolienlage kein Kondensat mehr absetzt. Eine Perforation der Abdeckfolienlage kann vollständig entfallen, weshalb die Kälteverluste um einen weiteren etheblichen Betrag reduziert sind. Durch die doppellagige Ausführung der Abdeckfolie werden also zwei verschiedene Effekte erzielt, die sich zu einer erheblichen Reduzierung der Kälteverluste addieren.The cold insulation of the two-layer covering device is opposite a single-layer covering device has been significantly improved, because the air cushion between the two layers is a good heat insulator against ready-made cold losses. The cold losses can be reduced considerably in this way. Furthermore, the two-ply cover device the temperature difference between the outside and the inside each layer significantly reduced, so that the respective No more condensate settles on the outside of each cover sheet. There is no need to perforate the cover film layer, which is why the cold losses by another considerable Amount are reduced. Due to the double-layer design of the Covering film therefore has two different effects, the add up to a significant reduction in cold losses.

Vorzugsweise ist die Abdeckvorrichtung als Rollovorrichtung ausgebildet, so daß die beiden Abdeckfolienlagen von einem Rand der Zugriffsöffnung zum gegenüberliegenden Rand ausziehbar sind. Die Rollovorrichtung ist vorzugsweise am oberen Rand der Zugriffsöffnung montiert, so daß die Abdeckfolienlagen zum Verschließen vom oberen Rand zum unteren Rand der Zugriffsöffnung ausgezogen werden können. Auf diese Weise wird eine einfach handhabbare und platzsparende Abdeckvorrichtung realisiert.The covering device is preferably a roller blind device formed so that the two layers of cover film from one edge the access opening can be pulled out to the opposite edge are. The blind device is preferably at the top of the Access opening mounted so that the cover film layers for closing from the top to the bottom of the access opening can be pulled out. This way one becomes easy manageable and space-saving covering device realized.

In einer bevorzugten Ausgestaltung ist die Rollovorrichtung nach Art eines Flaschenzuges ausgebildet, wobei eine einzige Abdeckfolie die beiden Abdeckfolienlagen bildet, und eine zylinderartige feststehende Rollorolle zum Auf- und Abrollen der Abdeckfolie und eine zylinderartige lose Rolle zwischen den beiden Abdeckfolienlagen vorgesehen ist. Während die feststehende Rolle dem Auf- und Abrollen der Abdeckfolie dient, wird die lose Rolle von der Abdeckfolie mit ungefähr 180° umschlungen. Die lose Rolle sorgt also für ein Umlenken der Abdeckfolie um 180°, für ein Glattziehen der Abdeckfolie und gleichzeitig für eine Beabstandung der beiden Abdeckfolienlagen voneinander. Die Abdeckfolie ist also mit ihrem einen Ende an der feststehenden Rolle befestigt und auf diese aufroll- bzw. von dieser abrollbar. Das andere Ende der Abdeckfolie ist an der Rollovorrichtung oder in ihrer Nähe befestigt. Beim Abrollen der Abdeckfolie bildet sich also eine Abdeckfolienschleife, deren Umlenkpunkt durch die lose Rolle gebildet wird. Mit der Ausbildung der Rollovorrichtung nach Art eines Flaschenzuges können beide Lagen der Abdeckfolie mit einer einzigen angetriebenen Rolle auf- und abgerollt werden. Gleichzeitig beschwert die lose Rolle das untere Ende der Abdeckfolienlagen, so daß ein straffer Sitz der Abdeckfolienlagen gewährleistet ist.In a preferred embodiment, the roller blind device trained like a pulley, a single Cover film forms the two cover film layers, and one cylindrical fixed roller to roll up and down the cover sheet and a cylindrical loose roll between the two cover film layers is provided. While the fixed Roll serves to roll up and unroll the cover film, the loose roll is wrapped around the cover film with approximately 180 °. The loose roller therefore deflects the cover film by 180 °, for smoothing the cover film and at the same time for spacing the two layers of cover film from each other. The cover film is therefore at one end attached to the fixed roll and roll or rollable from this. The other end of the cover film is on attached to the blind device or in its vicinity. When unrolling the cover film thus forms a cover film loop, whose deflection point is formed by the loose roller. With the Training of the blind device in the manner of a pulley both layers of the cover film can be driven with a single Roll up and unrolled. Complained at the same time the loose roll the lower end of the cover sheet layers, so that a tight fit of the cover film layers is guaranteed.

Vorzugsweise sind die Abdeckfolienlagen zum Verschließen senkrecht vor der Zugriffsöffnung ausziehbar.The cover film layers are preferably vertical for closing extendable in front of the access opening.

In einer bevorzugten Ausgestaltung ist der Abstand zwischen den Abdeckfolienlagen überall annähernd gleich und beträgt zwischen 1,0 und 20,0 cm, insbesondere ungefähr 2,0 cm. Je größer der Abstand zwischen den beiden Abdeckfolienlagen ist, desto stärker wird die isolierende Luftschicht zwischen den Abdeckfolienlagen. Durch Konstanthalten des Abstandes zwischen beiden Abdeckfolienlagen werden Kältebrücken verhindert.In a preferred embodiment, the distance between the Cover foil layers almost the same everywhere and is between 1.0 and 20.0 cm, especially about 2.0 cm. The bigger the The greater the distance between the two layers of cover film becomes the insulating layer of air between the cover sheet layers. By keeping the distance between the two layers of cover film constant cold spots are prevented.

Vorzugsweise weist die Rollovorrichtung einen Antrieb zum Aus-und Einziehen der Abdeckfolienlagen auf. Bei der Flaschenzug-Rollovorrichtung wird vorzugsweise die feststehende drehbare Rolle zum Auf- und Abrollen der Abdeckfolie angetrieben. Es kann jedoch auch die lose drehbare Rolle in Schließstellung der Abdeckvorrichtung bzw. in umgekehrter Richtung durch den Antrieb verschoben werden. Vorzugsweise weist die feste Rolle einen Drehantrieb auf.The roller blind device preferably has a drive for opening and closing Pull in the cover foil layers. With the pulley system is preferably the fixed rotatable Roller for rolling up and unrolling the cover film driven. It However, the loosely rotatable roller can also be in the closed position Cover device or in the reverse direction by the drive be moved. Preferably, the fixed role a rotary actuator.

Gemäß einer bevorzugten Ausgestaltung weist eine Abdeckfolienlage an ihren Seitenrändern jeweils ein flexibles Dichtband auf, das jeweils mit einer festen Dichtleiste an den Seitenrändern der Zugriffsöffnung magnetisch derart zusammenwirkt, daß der Seitenrand der ausgezogenen Abdeckfolienlage jeweils an der Dichtleiste anliegt. Das Dichtband kann beispielsweise ein magnetisierbarer Metallgewebestreifen oder ein entsprechender metallischer Lack sein, der im Randbereich der betreffenden Abdeckfolienlage aufgenäht oder aufgeklebt ist. Die Dichtleiste kann aus einem Permanentmagneten bestehen, der längs der Seitenränder der Zugriffsöffnung durchgehend angebracht ist. Auf diese Weise werden die Seitenränder der Abdeckfolienlage durch die Dichtleiste magnetisch angezogen, so daß sie weitgehend abdichtend an der Dichtleiste anliegen. Dadurch wird ein spaltfreier Verschluß auch der Seitenränder der Zugriffsöffnung realisiert, wodurch weitere Kälteverluste vermieden werden.According to a preferred embodiment, a cover film layer has a flexible sealing tape on each side edge on, each with a fixed sealing strip on the side edges the access opening cooperates magnetically in such a way that the side edge of the extended cover sheet layer on the sealing strip rests. The sealing tape can be, for example magnetizable metal strips or a corresponding one be metallic paint in the edge area of the cover sheet concerned is sewn on or glued on. The sealing strip can consist of a permanent magnet that runs along the side edges the access opening is attached throughout. On in this way, the side edges of the cover sheet are through the sealing strip is magnetically attracted so that it is largely sealing rest on the sealing strip. This makes a gap-free Closure of the side edges of the access opening also realized, thereby avoiding further cold losses.

In einer bevorzugten Ausgestaltung weist die feststehende Abdeckfolienlage der flaschenzugartigen Rollovorrichtung das Dichtband auf, das sich friktionsfrei an die Dichtleiste anlegen und von ihr abschälen läßt. Die Kombination der Flaschenzug-Rollovorrichtung mit der magnetischen Abdichtung ist deshalb besonders vorteilhaft, weil bei der flaschenzugartigen Rollovorrichtung eine Abdeckfolienlage stets feststehend ist, weshalb diese Lage nicht als solche geschoben wird, sondern gewissermaßen auf die Abdecköffnung aufgelegt wird. Aus diesem Grund läßt sich mit der festen Abdeckfolienlage eine sich fest mit den Seitenrändern der Zugriffsöffnung verbindende Abdichtung realisieren.In a preferred embodiment, the stationary cover film layer has the pulley-like roller blind device Sealing tape, which attach to the sealing strip without friction and has it peeled off. The combination of the pulley system with the magnetic seal is therefore particularly advantageous because in the pulley-like A cover sheet layer is always fixed, which is why this situation is not pushed as such, but to a certain extent is placed on the cover opening. For this Reason can be fixed with the fixed layer of cover film seal connecting the side edges of the access opening realize.

Vorzugsweise ist die Abdeckfolie luftdicht ausgebildet. Eine Perforation der Abdeckfolie zur Vermeidung von Kondensation ist wegen des Luftpolsters zwischen den Abdeckfolienlagen nicht mehr erforderlich. Daher kann die Abdeckfolie absolut luftdicht ausgebildet werden, wodurch wiederum die Kälteverluste reduziert werden.The cover film is preferably designed to be airtight. A Perforation of the cover film to avoid condensation not because of the air cushion between the cover film layers more needed. Therefore, the cover film can be absolutely airtight be trained, which in turn reduces the cold losses become.

In einer bevorzugten Ausgestaltung sind die Abdeckfolienlagen einseitig jeweils mit einer Infrarotstrahlung reflektierenden Beschichtung versehen, die einander gegenüberliegend angeordnet sind. Die Beschichtung ist also jeweils zum Luftpolster zwischen den beiden Abdeckfolienlagen hin gerichtet. Wie Versuche ergeben haben, sind die Wärmestrahlungsverluste durch die Abdeckfolienlagen hindurch bei dieser Anordnung am geringsten.In a preferred embodiment, the cover film layers are one-sided reflective with infrared radiation Provide coating, which are arranged opposite each other are. The coating is therefore always an air cushion directed between the two layers of cover film. Like attempts have resulted are the heat radiation losses through the Cover film layers through this arrangement the least.

Im folgenden werden unter Bezugnahme auf die Figuren e Ausführungsbeispiele der Erfindung näher erläutert.The following are exemplary embodiments with reference to the figures the invention explained in more detail.

Es zeigen:

Fig. 1
eine Querschnittsdarstellung eines Kühlregales mit einer fest eingebauten Flaschenzug-Rollovorrichtung,
Fig. 2
schematisch Kühlregal mit angebauter und vollständig aufgerollter Rollovorrichtung,
Fig. 3
das Kühlregal der Figur 2 mit halb ausgerollter Rollovorrichtung,
Fig. 4
das Kühlregal der Figur 2 mit vollständig ausgerollter Rollovorrichtung,
Fig. 5
ein Längsschnitt der Abdichtfolie und ihrer seitlichen Magnet-Abdichtung,
Fig. 6
ein zweites Ausführungsbeispiel für die seitliche Abdichtung der Abdeckfolie mit Labyrinthdichtung.
Show it:
Fig. 1
1 shows a cross-sectional illustration of a cooling rack with a permanently installed pulley system,
Fig. 2
schematically refrigerated shelf with attached and fully rolled up blind device,
Fig. 3
the cooling shelf of Figure 2 with half-rolled blind device,
Fig. 4
the cooling shelf of Figure 2 with the roller blind fully rolled out,
Fig. 5
a longitudinal section of the sealing film and its lateral magnetic seal,
Fig. 6
a second embodiment for the lateral sealing of the cover film with a labyrinth seal.

In den Fig. 1 bis 4 ist ein Kühlregal 10 dargestellt, das ein sog. Vertikalverkaufs-Kühlregal mit Umluftkühlung ist. Derartige Kühlregale werden in Lebensmittelgeschäften eingesetzt, um zu kühlende Waren zu lagern und gleichzeitig verkaufsgerecht zu präsentieren.1 to 4, a cooling shelf 10 is shown, the one so-called vertical sales cooling rack with forced-air cooling. Such Cooling shelves are used in grocery stores, to store goods to be cooled and at the same time suitable for sale showcase.

Das in Fig. 1 dargestellte Kühlregal 10 weist eine Bodenwand 12, eine Rückenwand 13, eine Deckenwand 14 und zwei Seitenwände 15 auf, die zusammen einen Kühlraum 16 umschließen. An der Rückenwand 13 sind zwei leicht nach vorne unten geneigte Regalböden 18 angeordnet. Die Vorderseite des Kühlregales 10 weist eine sich im wesentlichen über die gesamte Vorderseite erstreckende Zugriffsöffnung 20 auf, durch die ein Kunde direkt auf das im Innenraum 16 lagernde Kühlgut zugreifen kann.The cooling shelf 10 shown in Fig. 1 has a bottom wall 12, a back wall 13, a top wall 14 and two side walls 15, which together enclose a cooling space 16. At the Back wall 13 are two shelves slightly inclined towards the front down 18 arranged. The front of the refrigerated shelf 10 has one extending substantially over the entire front Access opening 20 through which a customer directly can access the refrigerated goods stored in the interior 16.

Das Kühlregal 10 weist eine Umluftkühlung auf, die im gebildet wird von einem Lufteinlaß 22 am bodenseitigen Öffnungsrand, dem Bodenkanal 23, in dessen Verlauf ein Lüfter 24 und eine Kühlvorrichtung 25 angeordnet sind. Die durch den Lufteinlaß 22 angesaugte und durch die Kühlvorrichtung 25 gekühlte Luft wird weiter durch einen Rückwandkanal 27 und einen daran anschließenden Deckenwandkanal 29 zu einem Luftauslaß 32 geführt. Die gekühlte Luft strömt durch den Luftauslaß 32 und bildet in der Zugriffsöffnung 20 einen Kaltluft-Vorhang zwischen dem Kaltluftauslaß 32 und dem Kaltlufteinlaß 22. Im Verlauf des Rückwandkanales 27 sind zur Innenraumseite weitere Öffnungen vorgesehen, durch die Kühlluft direkt in den Kühlraum 16 und insbesondere direkt auf die Regalböden 18 strömt.The cooling shelf 10 has a forced-air cooling, which is formed in the is from an air inlet 22 on the bottom opening edge, the Floor duct 23, in the course of which a fan 24 and a cooling device 25 are arranged. The sucked in through the air inlet 22 and cooled air by the cooling device 25 further through a rear wall channel 27 and an adjoining one Ceiling wall duct 29 led to an air outlet 32. The cooled air flows through the air outlet 32 and forms in the access opening 20 a cold air curtain between the Cold air outlet 32 and the cold air inlet 22. In the course of Rear wall channel 27 are further openings to the interior side provided by the cooling air directly into the cooling space 16 and in particular flows directly onto the shelves 18.

Am vorderen Ende der Deckenwand 14, also am oberen Seitenrand der Zugriffsöffnung 20, ist eine Abdeckvorrichtung 40 in die Deckenwand 14 eingebaut. Bei der Abdeckvorrichtung handelt es sich um eine Rollovorrichtung, die eine Abdeckfolie 42 enthält, die als Nachtabdeckung zum Verschließen der Zugriffsöffnung 20 in der Zugriffsöffnung 20 herabgelassen werden kann.At the front end of the ceiling wall 14, that is, at the upper side edge the access opening 20, a cover device 40 is in the Ceiling wall 14 installed. The cover device is a roller blind device which contains a cover film 42, that as a night cover to close the access opening 20 can be lowered into the access opening 20.

Wie in den Fig. 2-4 am Beispiel einer nachrüstbaren Abdeckvorrichtung 40 schematisch dargestellt, ist die Abdeckvorrichtung 40 eine als Flaschenzug ausgebildete Rollovorrichtung. Die Rollovorrichtung weist eine einzige flexible Abdeckfolie 42 auf, die im Schließzustand (Fig. 4) der Rollovorrichtung 40 eine erste innenseitige Abdeckfolienlage 44 und eine zweite außenseitige Abdeckfolienlage 46 bildet. As in FIGS. 2-4 using the example of a retrofittable covering device 40 is shown schematically, the cover device 40 a roller blind designed as a pulley system. The The roller blind device has a single flexible cover film 42 on in the closed state (FIG. 4) of the blind device 40 a first inner cover sheet layer 44 and a second one outside cover sheet layer 46 forms.

Zwischen den beiden Abdeckfolienlagen 44,46 bildet sich ein luftgefüllter Zwischenraum 47, der einen guten Wärmeisolator abgibt und damit Kälteverlusten des Kühlregal-Innenraums 16 entgegenwirkt. Ferner wird durch das Zwischenraum-Luftpolster 47 auch die Bildung von Kondensat auf den jeweiligen wärmeren Seiten der Abdeckfolienlagen 44,46 verhindert.A layer is formed between the two cover film layers 44, 46 air-filled space 47, which is a good heat insulator releases and thus cold losses of the cooling rack interior 16 counteracts. Furthermore, through the gap air cushion 47 also the formation of condensate on the respective warmer Sides of the cover foil layers 44,46 prevented.

Die Rollovorrichtung 40 weist eine feststehende drehbare zylinderförmige Rolle 48 auf, die am oberen Rand der Zugriffsöffnung 20 angeordnet ist. Die feste Rolle 48 weist einen elektrischen Drehantrieb auf, durch den die Abdeckfolie auf- und abgerollt werden kann. Während das eine Ende der Abdeckfolie 42 fest an der festen Rolle 48 angebracht ist, ist das andere Ende 50 der Abdeckfolie 42 fest an dem Gehäuse 52 der Abdeckvorrichtung 40 befestigt. Ferner ist eine lose zweite drehbare zylinderförmige Rolle 54 vorgesehen, die als Beschwerungsrolle dient. Die zweite Rolle 54 zieht durch ihr Eigengewicht die beiden Lagen 44,46 nach unten, so daß die Abdeckfolie 42 senkrecht stehend und glatt in der Zugriffsöffnung 20 aufgespannt wird, wie in Fig. 3 und 4 dargestellt.The roller blind device 40 has a fixed, rotatable, cylindrical one Roll 48 on the top of the access opening 20 is arranged. The fixed roller 48 has an electric one Rotary drive on, through which the cover film is rolled up and down can be. While the one end of the cover sheet 42 firmly the fixed roller 48 is attached, the other end 50 is the Cover film 42 firmly on the housing 52 of the cover device 40 attached. Furthermore, a loose second rotatable cylindrical one Roll 54 provided that serves as a weighting role. The second roller 54 pulls the two layers by its own weight 44,46 down so that the cover film 42 is vertical and is spanned smoothly in the access opening 20, as in 3 and 4 are shown.

In der in Fig. 4 dargestellten Schließstellung der Abdeckvorrichtung 40 liegt die zweite Rolle 54 in einen annähernd U-förmigen nach oben offenen Profil 56 und ist dadurch an dieser Stelle spaltfrei abgedichtet.In the closed position of the covering device shown in FIG. 4 40 is the second roller 54 in an approximately U-shaped upwardly open profile 56 and is thereby on this Sealed point-free.

Die Abdeckfolie 42 ist eine luftundurchlässige, flexible und gewebeverstärkte Kunststoffolie, die einseitig mit einer Infrarot-Strahlung reflektierenden Beschichtung versehen ist. Die Beschichtung ist auf der zum Zwischenraum orientierten Seite der Abdeckfolienlagen 44,46 aufgebracht.The cover sheet 42 is an airtight, flexible and Fabric-reinforced plastic film that is one-sided with infrared radiation reflective coating is provided. The Coating is on the side facing the space the cover sheet layers 44,46 applied.

Durch die doppellagige Ausbildung der Abdeckfolie 42 wird in der Zugriffsöffnung ein gut isolierendes Luftposter realisiert, das eine gute thermische Isolation gegen Kovektionskälteverluste darstellt. Wie Versuche ergeben haben, lassen sich dadurch die Kühlenergieverluste beträchtlich reduzieren. Dieser Effekt wird auch dadurch erreicht, daß kondensationsverhindernde Perforationen wegfallen, wodurch der Kälteenergieverlust ebenfalls beträchtlich reduziert wird.Due to the double-layer design of the cover film 42 is in realizes a well insulating air poster at the access opening, good thermal insulation against cold convection losses represents. As experiments have shown, this can be done reduce the cooling energy losses considerably. This Effect is also achieved by the fact that condensation-preventing Perforations are eliminated, reducing the loss of cold energy is also reduced considerably.

Die lose Rolle 54 hat einen Durchmesser von ungefähr 2,0 cm. Auch am oberen Ende der Zugriffsöffnung 20 sind die beiden Folienlagen 44,46 in einem Abstand von ungefähr 2,0 cm gelagert, so daß sich ein weitgehend gleichbleibendes Luftpolster von 2,0 cm Dicke ergibt.The loose roller 54 has a diameter of approximately 2.0 cm. The two film layers are also at the upper end of the access opening 20 44.46 stored at a distance of approximately 2.0 cm, so that there is a largely constant air cushion of 2.0 cm thickness results.

In den Fig. 5 und 6 sind zwei Ausführungsbeispiele einer Randabdichtung der in den Fig. 1-4 dargestellten Rollovorrichtungen 40 gezeigt.5 and 6, two embodiments are one Edge sealing of the roller blind devices shown in FIGS. 1-4 40 shown.

Die in Fig. 5 dargestellte Absdeckfolie 60 weist an der Außenseite der äußeren zweiten Abdeckfolienlage 65 als Dichtband ein flexibles Metallband 62 auf, das sich über die gesamte Höhe der Zugriffsöffnung 20 erstreckt. An der dem Kühlraum 16 zugewandten Seite einer seitlichen Verblendung 63 der Zugriffsöffnung 20 ist eine magnetische Dichtleiste 65 über die gesamte Höhe der Zugriffsöffnung 20 angeordnet. Beim Abrollen der Abdeckfolie 60 legt sich das Metall-Dichtband 62 spaltfrei an die magnetische Dichtleiste 65 an, wodurch eine spaltfreie Abdichtung im Randbereich erfolgt. Das friktionsfreie Anlegen der abgerollten Abdeckfolie 60 ist deshalb möglich, weil die zweite Abdeckfolienlage 66 vertikal fixiert an dem Abdeckvorrichtungs-Gehäuse 52 befestigt ist, wie in Fig. 2-4 erkennbar. Beim Aufrollen der Abdeckfolie 60 schält sich die Abdeckfolienlage 66 friktionsfrei von der Dichtleiste 65 ab.The covering film 60 shown in FIG. 5 has on the outside the outer second cover layer 65 as a sealing tape a flexible metal band 62 that extends over the entire height the access opening 20 extends. On the cold room 16 facing Side of a side blind 63 of the access opening 20 is a magnetic sealing strip 65 over the entire Height of the access opening 20 is arranged. When unrolling the cover film 60 the metal sealing tape 62 lies on the gap-free magnetic sealing strip 65, which ensures a gap-free seal in the edge area. The friction-free creation of the rolled Cover film 60 is possible because the second Cover film layer 66 is vertically fixed to the cover device housing 52 is attached, as can be seen in Fig. 2-4. When rolling up of the cover film 60, the cover film layer 66 peels off from the sealing strip 65 without friction.

Statt einer magnetischen Ausbildung der Dichtung kann auch mit einer lösbaren Klett- oder Klebeverbindung gearbeitet werden.Instead of a magnetic design of the seal can also with a detachable Velcro or adhesive connection.

In Fig. 6 ist eine Labyrinthdichtung dargestellt, die im wesentlichen aus einem vertikalen U-Profil 72 gebildet wird, in dessen seitliche Öffnung die Seitenränder der beiden Abdeckfolienlagen 74,76 und das jeweilige Ende der losen Rolle 54 eintauchen. Auch die dargestellte Labyrinthdichtung bietet eine gute Abdichtung gegen Konvektionskälteverluste und dient gleichzeitig als Führung für die Rolle 54 und die Abdeckfolie 70.In Fig. 6 a labyrinth seal is shown, which is essentially is formed from a vertical U-profile 72, in the side opening of the side edges of the two layers of cover film 74, 76 and the respective end of the loose roll 54 immerse yourself. The labyrinth seal shown also offers one good sealing against convection cold losses and serves at the same time as a guide for the roller 54 and the cover film 70.

Claims (11)

Kühlregal mit einer Zugriffsöffnung (20), die durch eine Abdeckvorrichtung (40) verschließbar ist,
wobei die Abdeckvorrichtung (40) eine erste Lage (44) flexibler Abdeckfolie (42) aufweist, die zum Verschließen der Zugriffsöffnung (20) in der Zugriffsöffnung (20) aufspannbar ist,
dadurch gekennzeichnet
daß die Abdeckvorrichtung (40) eine zweite Lage (46) flexibler Abdeckfolie (42) aufweist, die in der Zugriffsöffnung (20) und beabstandet von der ersten Lage (44) aufspannbar ist.Cooling shelf with an access opening (20) which can be closed by a covering device (40),
wherein the covering device (40) has a first layer (44) of flexible covering film (42) which can be stretched in the access opening (20) to close the access opening (20),
characterized
that the covering device (40) has a second layer (46) of flexible covering film (42) which can be stretched in the access opening (20) and at a distance from the first layer (44). Kühlregal nach Anspruch 1, dadurch gekennzeichnet, daß die Abdeckvorrichtung (40) als Rollovorrichtung ausgebildet ist, so daß die beiden Abdeckfolienlagen (44,46) von einem Rand der Zugriffsöffnung (20) zum gegenüberliegenden Rand ausziehbar sind.Cooling shelf according to claim 1, characterized in that the Cover device (40) designed as a roller blind device is, so that the two layers of cover film (44,46) from one Edge of the access opening (20) to the opposite edge are extendable. Kühlregal nach Anspruch 2, dadurch gekennzeichnet, daß die Rollovorrichtung (40) nach Art eines Flaschenzuges ausgebildet ist, wobei eine einzige Abdeckfolie (42) die beiden Abdeckfolienlagen (44,46) bildet, eine zylinderartige feststehende drehbare Rolle (48) zum Auf- und Abrollen der Abdeckfolie (42) und eine zylinderartige lose drehbare Rolle (54) zwischen der beiden Abdeckfolienlagen (44,46) vorgesehen sind.Cooling shelf according to claim 2, characterized in that the Roller blind device (40) designed in the manner of a pulley is, wherein a single cover film (42) the two Cover foil layers (44,46) forms a cylindrical fixed rotatable roller (48) for rolling up and rolling off the cover film (42) and a cylinder-like loosely rotatable roller (54) between the two cover film layers (44,46) are. Kühlregal nach einem der Ansprüche 1-3, dadurch gekennzeichnet, daß die Abdeckfolienlagen zum Verschließen senkrecht vor der Zugriffsöffnung ausziehbar sind. Cooling shelf according to one of claims 1-3, characterized in that that the cover film layers for closing vertically are extendable in front of the access opening. Kühlregal nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß der Abstand zwischen beiden den Abdeckfolienlagen (44,46) überall annähernd gleich ist und zwischen 1,0 und 20,0 cm beträgt, insbesondere ungefähr 2,0 cm.Cooling shelf according to one of claims 1-4, characterized in that the distance between the two layers of cover film (44.46) is approximately the same everywhere and between 1.0 and is 20.0 cm, especially about 2.0 cm. Kühlregal nach einem der Ansprüche 2-5, dadurch gekennzeichnet, daß die Rollovorrichtung (40) einen Antrieb zum Aus- und Einziehen der Abdeckfolienlagen (44,46) aufweist.Cooling shelf according to one of claims 2-5, characterized in that the roller blind device (40) has a drive for Extending and retracting the cover film layers (44,46). Kühlregal Anspruch 6, dadurch gekennzeichnet, daß die feststehende Rolle (48) einen Drehantrieb aufweist.Cooling shelf claim 6, characterized in that the fixed Roller (48) has a rotary drive. Kühlregal nach einem der Ansprüche 1-7, dadurch gekennzeichnet, daß eine der Abdeckfolienlagen (66) an ihren Seitenrändern jeweils ein flexibles Dichtband (62) aufweist, das jeweils mit einer festen Dichtleiste (65) an den Seitenrändern (63) der Zugriffsöffnung (20) magnetisch zusammenwirkt, so daß die Seitenränder (63) der ausgezogenen Abdeckfolienlage (66) jeweils an der Dichtleiste (65) anliegt.Cooling shelf according to one of claims 1-7, characterized in that one of the cover sheet layers (66) on its side edges each has a flexible sealing tape (62), each with a fixed sealing strip (65) on the side edges (63) of the access opening (20) interacts magnetically, so that the side edges (63) of the extended cover sheet (66) lies against the sealing strip (65). Kühlregal nach Anspruch 8, dadurch gekennzeichnet, daß eine Abdeckfolienlage (66) fest am Kühlgerätrahmen befestigt ist und das Dichtband (62) aufweist, das sich friktionsfrei an die Dichtleiste (65) anlegen und von ihr abschälen läßt.Cooling shelf according to claim 8, characterized in that a Cover film layer (66) is firmly attached to the refrigerator frame and the sealing tape (62) which is free of friction put the sealing strip (65) and peel it off. Kühlregal nach einem der Ansprüche 1-9, dadurch gekennzeichnet, daß die Abdeckfolie (42) luftdicht ist.Cooling shelf according to one of claims 1-9, characterized in that the cover film (42) is airtight. Kühlregal nach einem der Ansprüche 1-10, dadurch gekennzeichnet, daß die Abdeckfolienlagen (44,46) einseitig jeweils eine Infrarotstrahlung reflektierende Beschichtung aufweisen, die einander gegenüberliegend angeordnet sind.Cooling shelf according to one of claims 1-10, characterized in that that the cover film layers (44,46) on one side each an infrared reflective coating have, which are arranged opposite each other.
EP00100405A 1999-02-19 2000-01-08 Refrigerated display stand Expired - Lifetime EP1029476B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29902999U 1999-02-19
DE29902999U DE29902999U1 (en) 1999-02-19 1999-02-19 Cooling shelf

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EP1114601A2 (en) * 2000-01-03 2001-07-11 Linde Aktiengesellschaft Merchandising display comprising a pivotable shutter
US9372025B2 (en) 2012-10-22 2016-06-21 Anthony, Inc. Covers for refrigeration systems
CN109982613A (en) * 2016-10-31 2019-07-05 开利公司 Cold beverage merchandisers

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DE10118439A1 (en) * 2001-04-12 2002-10-17 Linde Ag refrigerated
DE10221604B4 (en) * 2002-05-15 2010-09-16 Linde Kältetechnik GmbH & Co. KG Goods presentation furniture with night blind
DE102009055724A1 (en) * 2009-11-26 2011-06-01 Albert Weiss Roller blind unit has winding roller for winding two parallel arranged roller blinds which are rolled on winding roller in common manner

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US4288992A (en) * 1980-02-19 1981-09-15 Eliason Corporation Curtain for open front freezer or refrigerator
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Publication number Priority date Publication date Assignee Title
EP1114601A2 (en) * 2000-01-03 2001-07-11 Linde Aktiengesellschaft Merchandising display comprising a pivotable shutter
EP1114601A3 (en) * 2000-01-03 2003-07-02 Linde Aktiengesellschaft Merchandising display comprising a pivotable shutter
US9372025B2 (en) 2012-10-22 2016-06-21 Anthony, Inc. Covers for refrigeration systems
US9829239B2 (en) 2012-10-22 2017-11-28 Anthony, Inc. Covers for refrigeration systems
CN109982613A (en) * 2016-10-31 2019-07-05 开利公司 Cold beverage merchandisers

Also Published As

Publication number Publication date
EP1029476B1 (en) 2003-12-03
ATE255350T1 (en) 2003-12-15
DE29902999U1 (en) 2000-06-29
DE50004606D1 (en) 2004-01-15
EP1029476A3 (en) 2001-02-28

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