EP0284452A1 - Refrigerated cabinet provided with a mobile closing and shielding device - Google Patents

Refrigerated cabinet provided with a mobile closing and shielding device Download PDF

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Publication number
EP0284452A1
EP0284452A1 EP88400355A EP88400355A EP0284452A1 EP 0284452 A1 EP0284452 A1 EP 0284452A1 EP 88400355 A EP88400355 A EP 88400355A EP 88400355 A EP88400355 A EP 88400355A EP 0284452 A1 EP0284452 A1 EP 0284452A1
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EP
European Patent Office
Prior art keywords
reflector
screen device
furniture according
closure
equal
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Granted
Application number
EP88400355A
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German (de)
French (fr)
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EP0284452B1 (en
Inventor
Jean-Albert Bazillac
Patrick Cazalis
François Vitry
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SOCIETE EUROPEENNE INDUSTRIELLE DU FROID
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EUROPEENNE INDUSTRIELLE DU FROID Ste
Bonnet Refrigeration
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/026—Doors; Covers for open-top cabinets
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2500/00—Problems to be solved
    • F25D2500/02—Geometry problems

Definitions

  • the present invention relates to a refrigeration unit provided with a mobile closure and screen device.
  • a refrigeration cabinet in particular that intended for the presentation for sale of foodstuffs such as a bin cabinet, a display cabinet, is generally open, that is to say provided with an opening which is not closed by a material barrier and gives free access to the exposed foodstuffs.
  • the aim of the present invention is to avoid these drawbacks, which makes it possible to produce a refrigerated cabinet provided with a movable closure device and a reflector screen having excellent efficiency in protecting this cabinet against rays. direct and thoughtful actions from the outside environment.
  • a refrigeration unit provided with a movable closure and screen device is characterized in that the movable closure and screen device comprises a reflector constituted by a piece of reflective material having the form of '' a gutter whose cross section has a curvature formed by an arc of a circle of radius which is determined as a function of the width of the food display surface and the height of the edge of this reflector vis-à-vis screw of this exhibition area.
  • the invention is applicable to any refrigerating cabinet intended for the presentation of foodstuffs for sale.
  • a refrigeration unit 1 taken as an exemplary embodiment of the invention is schematically illustrated in FIG. 1.
  • the refrigeration unit 1 is a unit intended for a presentation for sale of frozen products and ice creams.
  • the cabinet 1 comprises a lower part 2 produced in a similar manner to a known tray cabinet intended for frozen products and ice creams, and an upper part 3 supported by vertical uprights 4 fixed on the lower part 2, and intended mainly in housing a mobile closure and screen device 5 when the latter is in the high screen position.
  • the movable closure and screen device 5 comprises a low position or closed position where it closes the opening 11 of the lower part 2 to avoid any loss of cold, and a high position or screen position in order to allow free access to the foodstuffs exposed in the lower part 2 and to prevent as much as possible direct and reflected radiation from the external environment from reaching the foodstuffs.
  • the mobile closure and screen device 5 is suspended from the upper part 3 of the cabinet 1 by means of cables or belts 6 and idler support pulleys 7.
  • the cable or belts 6 which pass over the support pulleys 7 are, under the control of an electric motor 9 and its transmission shafts 10, wound on storage pulleys 8 when the device is raised from its low closed position to its high screen position, and unwound from these storage pulleys 8, when lowering this device from its high screen position to its low closed position.
  • the closure and screen device 5 In its high position or screen position, the closure and screen device 5 covers by its extent, an area of space above the part 2 of the cabinet where the food is exposed, separates the food by its presence of direct and / or reflected thermal radiation outside this covered area, and effectively prevents them from reaching these commodities.
  • the closure and screen device 5 comprises a reflector 12 and a rigid frame 15 supporting this reflector.
  • the reflector 12 of the closure and screen device 5 is constituted by a piece of reflective material having the shape of a gutter whose cross section has a curvature formed by an arc of a circle of radius R which is determined as a function of the width of the food display surface of the cabinet 1 and the height of the edge of this reflector 12 with respect to this display surface.
  • the width of the food display surface is delimited by points A and B and equal to d
  • the height with respect to this display surface AB where the edge of the reflector 12 is located in the high position is marked by points B and C and equal to h, C being vertical to B in other words BC perpendicular to AB
  • the angle formed by straight lines joining point C of the edge of the reflector 12 and respectively these delimiting points A and B of the width of the food display surface is equal to alpha
  • the reflector 12 is provided with a cross section having a curvature constituted by an arc delimited by the points D.
  • the efficiency of the closure and screen device 5 with reflector 12 makes it possible to obtain, compared with the devices of the known solutions, an energy saving greater than 20%.
  • the upper part 3 with its bandages or side plates 14 constitutes a housing for the closure and screen device 5 in the high position and serves as a shelf support. rage, decoration and information or advertising on products for sale and / or insured services.
  • the upper part 3 contains a system of tubes and / or light bulbs, not shown, which, in direct or reflected light, diffuse or in the form of a beam or spot, white, monochrome or full color, illuminates not only the food display surface in the lower part 2 but also the strips or side plates 14 made of materials chosen from transparent, translucent and opaque materials.
  • the reflector 12 is made of a material chosen from metals with a reflective surface, metallized reflective materials and other known reflective materials.
  • the reclector 12 consists of a single piece or an assembly of component parts having the same color or several assorted colors.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

Refrigerated cabinet equipped with a mobile closing and shielding device, in which the mobile closing and shielding device (5) comprises a reflector (12) consisting of a piece made from a reflective material having the shape of a trough whose cross-section has a curve formed from an arc (DC) of a circle (O) of radius (R) which is determined as a function of the width (AB) of the foodstuff-exposure surface and of the height (BC) of the edge of this reflector (12) opposite this exposure surface. <IMAGE>

Description

La présente invention concerne un meuble frigorifique muni d'une dispositif mobile de fermeture et d'écran.The present invention relates to a refrigeration unit provided with a mobile closure and screen device.

Un meuble frigorifique, notamment celui destiné à la présen­tation à la vente des denrées alimentaires tel qu'un meuble-bac, un meuble vitrine, est généralement ouvert c'est-à-dire muni d'une ouverture qui n'est pas fermée par une barrière matérielle et laisse un libre accès aux denrées exposées.A refrigeration cabinet, in particular that intended for the presentation for sale of foodstuffs such as a bin cabinet, a display cabinet, is generally open, that is to say provided with an opening which is not closed by a material barrier and gives free access to the exposed foodstuffs.

Dans un tel meuble, les denrées alimentaires sont directment soumises à un réchauffement par rayonnement et un réchauffement par convection de l'air du milieu extérieur. Il en résulte une consommation appréciable d'énergie pour produire ce froid néces­saire au maintien de ces denrées alimentaires à une tempérarure de conservation exigée par les réglementations.In such a piece of furniture, the foodstuffs are directly subjected to heating by radiation and heating by convection of the air from the outside environment. This results in an appreciable consumption of energy to produce the cold necessary to maintain these foodstuffs at a storage temperature required by regulations.

Pour réduire cette consommation de froid, des dispositifs sous forme de couvercle, baldaquin ou rideau ont été proposés. Ces dispositif connus sont d'une part des dispositifs qui obturent l'ouver­ture du meuble frigorifique en dehors des heures de vente, et d'autre part les dispositifs fixes qui, disposés à une distance prédéterminée de l'ouverture, en regard des denrées à conserver forment un écran au rayonnement thermique. Ces dispositifs servent ainsi plus ou moins de barrières contre un réchauffement indésirable de ces denrées, par convection d'air et/ou par rayonnement direct du milieu extérieur. Certains de ces dispositifs connus présentent également une surface réfléchissante.To reduce this consumption of cold, devices in the form of a cover, canopy or curtain have been proposed. These known devices are on the one hand devices which close the opening of the refrigerating cabinet outside of sales hours, and on the other hand the fixed devices which, arranged at a predetermined distance from the opening, facing the foodstuffs to be keep form a screen to thermal radiation. These devices thus serve more or less as barriers against undesirable heating of these foodstuffs, by air convection and / or by direct radiation from the outside environment. Some of these known devices also have a reflecting surface.

On constate cependant que l'efficacité de ces dispositifs connus de fermeture et d'écran dans la protection de ces meubles contre les rayonnements du milieu extérieur reste insuffisante.However, it is found that the effectiveness of these known closing and shielding devices in protecting this furniture against radiation from the outside environment remains insufficient.

La présente invention ayant pour but d'éviter ces inconvé­nients, permet de réaliser un meuble frigorifique muni d'un dispositif mobile de fermeture et d'écran à réflecteur présentant une excel­lente efficacité dans la protection de ce meuble contre les rayon­ nements directs et réfléchis venant du milieu extérieur.The aim of the present invention is to avoid these drawbacks, which makes it possible to produce a refrigerated cabinet provided with a movable closure device and a reflector screen having excellent efficiency in protecting this cabinet against rays. direct and thoughtful actions from the outside environment.

Selon l'invention, un meuble frigorifique muni d'un dispositif mobile de fermeture et d'écran, est caractérisé en ce que le dispositif mobile de fermeture et d'écran comprend un réflecteur constitué par une pièce en un matériau réfléchissant ayant la forme d'une gouttière dont la section transversale présente une coubure formée d'un arc d'un cercle de rayon qui est déterminée en fonction de la largeur de la surface d'exposition de denrées et de la hauteur du bord de ce réflecteur vis-à-vis de cette surface d'exposition.According to the invention, a refrigeration unit provided with a movable closure and screen device, is characterized in that the movable closure and screen device comprises a reflector constituted by a piece of reflective material having the form of '' a gutter whose cross section has a curvature formed by an arc of a circle of radius which is determined as a function of the width of the food display surface and the height of the edge of this reflector vis-à-vis screw of this exhibition area.

Pour mieux faire comprendre l'invention on en décrit ci-après un exemple de réalisation illustré par des dessins ci-annexés dont

  • - la figure 1 représente une vue schématique en perspective d'un meuble frigorifique réalisé selon l'invention montrant un dispo­sitif mobile de fermeture et d'écran à réflecteur, au cours d'un déplacement de sa position basse de fermeture vers sa position haute d'écran, et
  • - la figure 2 représente à une autre échelle une vue partielle et schématique en coupe transversale du réflecteur du dispositif mobile de fermeture et d'écran de la figure 1, montrant un mode de détermination de sa forme.
To better understand the invention, an exemplary embodiment is illustrated below, illustrated by the attached drawings,
  • - Figure 1 shows a schematic perspective view of a refrigeration unit produced according to the invention showing a movable closure device and reflector screen, during a movement from its lower closed position to its upper position d 'screen, and
  • - Figure 2 shows on another scale a partial and schematic view in cross section of the reflector of the mobile closure and screen device of Figure 1, showing a method of determining its shape.

L'invention est applicable à tout meuble frigorifique destiné à la présentation de denrées à la vente. Un meuble frigorifique 1 pris comme un exemple de réalisation de l'invention est schémati­quement illustré dans la figure 1. Le meuble frigorifique 1 est un meuble destiné à une présentation à la vente de produits surgelés et crèmes glacées. Le meuble 1 comprend une partie inférieure 2 réalisée d'une manière analogue à un meuble-bac connu destiné aux produits surgelés et aux crèmes glacées, et une partie supérieure 3 supportée par des montants verticaux 4 fixés sur la partie inférieure 2, et destinée principalement à loger un dispositif mobile de fermeture et d'écran 5 lorsque ce dernier se trouve en position haute d'écran. Le dispositif mobile de fermeture et d'écran 5 comprend une position basse ou position de fermeture où il ferme l'ouverture 11 de la partie inférieure 2 pour éviter toute perte de froid, et une position haute ou position d'écran afin de laisser un libre accès aux denrées exposées dans la partie inférieure 2 et d'empêcher au maximum les rayonnements directs et réfléchis du milieu extérieur d'atteindre les denrées. Le dispositif mobile de fermeture et d'écran 5 est suspendu à la partie supérieure 3 du meuble 1 au moyen de câbles ou courroies 6 et de poulies supports folles 7. Les câble ou courroies 6 qui passent sur les poulies-supports 7 sont, sous la commande d'un moteur électrique 9 et de ses arbres de transmission 10, enroulés sur des poulies d'emmagasinage 8 lors d'un relèvement de ce dispositif de sa position basse de fermeture dans sa position haute d'écran, et déroulés de ces poulies d'emmagasinage 8, lors d'un abaissement de ce dispositif de sa position haute d'écran à sa position basse de fermeture.The invention is applicable to any refrigerating cabinet intended for the presentation of foodstuffs for sale. A refrigeration unit 1 taken as an exemplary embodiment of the invention is schematically illustrated in FIG. 1. The refrigeration unit 1 is a unit intended for a presentation for sale of frozen products and ice creams. The cabinet 1 comprises a lower part 2 produced in a similar manner to a known tray cabinet intended for frozen products and ice creams, and an upper part 3 supported by vertical uprights 4 fixed on the lower part 2, and intended mainly in housing a mobile closure and screen device 5 when the latter is in the high screen position. The movable closure and screen device 5 comprises a low position or closed position where it closes the opening 11 of the lower part 2 to avoid any loss of cold, and a high position or screen position in order to allow free access to the foodstuffs exposed in the lower part 2 and to prevent as much as possible direct and reflected radiation from the external environment from reaching the foodstuffs. The mobile closure and screen device 5 is suspended from the upper part 3 of the cabinet 1 by means of cables or belts 6 and idler support pulleys 7. The cable or belts 6 which pass over the support pulleys 7 are, under the control of an electric motor 9 and its transmission shafts 10, wound on storage pulleys 8 when the device is raised from its low closed position to its high screen position, and unwound from these storage pulleys 8, when lowering this device from its high screen position to its low closed position.

Dans sa position haute ou position d'écran, le dispositif de fermeture et d'écran 5 couvre par son étendue, une zone de l'espace au-dessus de la partie 2 du meuble où sont exposées les denrées, sépare ces denrées par sa présence, de rayonnements thermiques directs et/ou réfléchis se trouvant en dehors de cette zone d'espace couverte, et les empêche efficacement d'atteindre ces denrées. Le dispositif de fermeture et d'écran 5 comprend un réflecteur 12 et un cadre rigide 15 supportant ce réflecteur.In its high position or screen position, the closure and screen device 5 covers by its extent, an area of space above the part 2 of the cabinet where the food is exposed, separates the food by its presence of direct and / or reflected thermal radiation outside this covered area, and effectively prevents them from reaching these commodities. The closure and screen device 5 comprises a reflector 12 and a rigid frame 15 supporting this reflector.

Des résultats surprenants de l'efficacité du dispositif de fermeture et d'écran 5 ont été enregistrés, en comparaison avec celle des solutions connues. Ces bons résultats sont principalement dûs à une forme particulière du réflecteur 12 de ce dispositif 5, représenté schématiquement en traits discontinus dans la figure 1.Surprising results of the efficiency of the closure and screen device 5 have been recorded, in comparison with that of known solutions. These good results are mainly due to a particular shape of the reflector 12 of this device 5, shown diagrammatically in broken lines in FIG. 1.

Selon l'invention le réflecteur 12 du dispositif de fermeture et d'écran 5 est constitué par une pièce en matériau réfléchissant ayant la forme d'une gouttière dont la section transversale présente une coubure formée d'un arc d'un cercle de rayon R qui est déterminé en fonction de la largeur de la surface d'exposition de denrées du meuble 1 et de la hauteur du bord de ce réflecteur 12 vis-à-vis de cette surface d'exposition.According to the invention the reflector 12 of the closure and screen device 5 is constituted by a piece of reflective material having the shape of a gutter whose cross section has a curvature formed by an arc of a circle of radius R which is determined as a function of the width of the food display surface of the cabinet 1 and the height of the edge of this reflector 12 with respect to this display surface.

Dans l'exemple illustré aux figures 1 et 2, dans le meuble 1, la largeur de la surface d'exposition de denrées est délimitéde par des points A et B et égale à d, la hauteur vis-à-vis de cette surface d'exposition AB où se trouve le bord du réflecteur 12 en position haute, est marquée par des points B et C et égale à h, C étant à la verticale de B autrement dit BC perpendiculaire à AB, l'angle formé par des droites joignant le point C du bord du réflecteur 12 et respectivement ces points A et B de délimitation de la largeur de la surface d'exposition de denrées, est égale à alpha, et le réflecteur 12 est pourvue d'une section transversale présentant une courbure constituée par un arc délimité par les points D. C d'un cercle de centre O défini par le point de rencontre d'une bissectrice CO de cet angle alpha et d'une médiatrice de cette largeur AB, et de rayon R égal au produit de la moitié de la valeur d de cette largeur AB, et de l'inverse du sinus d'un angle égale à la moitié de cet angle alpha

Figure imgb0001
où la tangente de cet angle alpha est égale au quotient de la valeur d de cette largeur AB de la surface d'exposition de denrées par la valeur h de la hauteur du bord du réflecteur 12 vis-à-vis de cette surface d'exposition, tgα =
Figure imgb0002
Dans la figure 2, il est facile d'identifier dans le triangle rectangle ABC dont l'angle au sommet C est égal à alpha, que tg α =
Figure imgb0003
=
Figure imgb0004
et dans le triangle rectangle OEC dont l'angle au somment C est égal à une moitié de l'angle alpha, OE étant une parallèle à AB et OC étant une bissectrice de l'angle alpha, que
Figure imgb0005
 In the example illustrated in Figures 1 and 2, in cabinet 1, the width of the food display surface is delimited by points A and B and equal to d, the height with respect to this display surface AB where the edge of the reflector 12 is located in the high position, is marked by points B and C and equal to h, C being vertical to B in other words BC perpendicular to AB, the angle formed by straight lines joining point C of the edge of the reflector 12 and respectively these delimiting points A and B of the width of the food display surface, is equal to alpha, and the reflector 12 is provided with a cross section having a curvature constituted by an arc delimited by the points D. C of a circle with defined center O by the meeting point of a bisector CO of this angle alpha and a perpendicular bisector of this width AB, and of radius R equal to the product of half the value d of this width AB, and the inverse of the sine of an angle equal to half of this alpha angle
Figure imgb0001
 where the tangent of this angle alpha is equal to the quotient of the value d of this width AB of the food display area by the value h of the height of the edge of the reflector 12 with respect to this display area , tgα =
Figure imgb0002
In Figure 2, it is easy to identify in the right triangle ABC whose apex angle C is equal to alpha, that tg α =
Figure imgb0003
=
Figure imgb0004
and in the right triangle OEC whose angle at the top C is equal to half of the angle alpha, OE being a parallel to AB and OC being a bisector of the angle alpha, that
Figure imgb0005

L'efficacité du dispositif de fermeture et d'écran 5 à réflec­teur 12 permet d'obtenir par rapport aux dispositifs des solutions connus une économie d'énergie supérieure à 20 %.The efficiency of the closure and screen device 5 with reflector 12 makes it possible to obtain, compared with the devices of the known solutions, an energy saving greater than 20%.

Dans le meuble 1, la partie supérieure 3 avec ses bandeux ou plaques latérales 14 constitue un logement pour le dispositif de fermeture et d'écran 5 en position haute et sert de support d'éclai­ rage, de décoration et d'information ou de publicité sur des produits mis en vente et/ou des services assurés. En tant que support d'éclairage, la partie supérieure 3 renferme un système de tubes et/ou d'ampoules électriques non représenté qui, en lumière directe ou réfléchie, diffuse ou sous forme de faisceau ou spot, blanche, monochrome ou polychrome, éclaire non seulement la surface d'exposition de denrées dans la partie inférieure 2 mais également les bandeaux ou plaques latérales 14 constitués par des matériaux choisis parmi les matériaux transparents, translucides et opaques.In the cabinet 1, the upper part 3 with its bandages or side plates 14 constitutes a housing for the closure and screen device 5 in the high position and serves as a shelf support. rage, decoration and information or advertising on products for sale and / or insured services. As a lighting support, the upper part 3 contains a system of tubes and / or light bulbs, not shown, which, in direct or reflected light, diffuse or in the form of a beam or spot, white, monochrome or full color, illuminates not only the food display surface in the lower part 2 but also the strips or side plates 14 made of materials chosen from transparent, translucent and opaque materials.

Le réflecteur 12 est réalisé en un matériau choisi parmi les métaux à surface réfléchissante, les matériaux métallisés réflé­chissants et les autres matériaux réfléchissants connus.The reflector 12 is made of a material chosen from metals with a reflective surface, metallized reflective materials and other known reflective materials.

Le réclecteur 12 est constitué en une pièce unique ou un assemblage de pièces composantes ayant une même couleur ou plusieurs couleurs assorties.The reclector 12 consists of a single piece or an assembly of component parts having the same color or several assorted colors.

Claims (9)

1. Meuble frigorifique muni d'un dispositif mobile de fermeture et d'écran, caractérisé en ce que le dispositif mobile de fermeture et d'écran (5) comprend un réflecteur (12) constitué par une pièce en un matériau réfléchissant ayant la forme d'une gouttière dont la section transversale présente une courbure formée d'un arc (DC) d'un cercle (O) de rayon (R) qui est déterminé en fonction de la largeur (AB) de la surface d'exposition de denrées et de la hauteur (BC) du bord de ce rélecteur (12) vis-à-vis de cette surface d'exposition.1. Refrigeration cabinet provided with a mobile closing and screen device, characterized in that the mobile closing and screen device (5) comprises a reflector (12) consisting of a piece of a reflective material having the form of a gutter whose cross section has a curvature formed by an arc (DC) of a circle (O) of radius (R) which is determined as a function of the width (AB) of the food display surface and the height (BC) of the edge of this reflector (12) with respect to this exposure surface. 2. Meuble selon la revendication 1, caractérisé en ce qu'il comprend une partie inférieure (2) comportant une surface d'expo­sition de denrées mises à la vente, et une partie supérieure (3) munie de bandeaux ou plaques latérales (14) constituant un logement au dispositif de fermeture et d'écran (5) en position haute, et servant de support de décoration, d'information ou de publicité et d'éclairage.2. Furniture according to claim 1, characterized in that it comprises a lower part (2) comprising an exhibition surface for foodstuffs offered for sale, and an upper part (3) provided with strips or side plates (14) constituting a housing for the closing and screen device (5) in the high position, and serving as a decoration, information or advertising and lighting support. 3. Meuble selon l'une des revendications 1 et 2, ayant une surface d'exposition à largeur délimitée par les points A et B et égale à d, une hauteur de bord du réflecteur (12) vis-à-vis de cette surface d'exposition AB, marquée par des points B et C et égale à h, C étant à la verticale de B, l'angle formé par les droites joignant le point C et les points A et B étant égal à alpha, caractérisé en ce que dans le dispositif de fermeture et d'écran (5), le réflecteur (12) est pourvu d'une section transversale présentant une courbure cons­tituée par un arc délimité par des points D, C d'un cercle de centre O défini par le point de rencontre d'une bissectrice (CO) de l'angle alpha et d'une médiatrice de la largeur (AB), et de rayon R égal au produit de la moitié de la valeur (d) de cette largeur AB, et l'inverse du sinus d'un angle égale à la moitié de l'angle alpha
Figure imgb0006
 où la tangente de cet angle alpha est égal au quotient de la valeur d de cette largeur AB, par la valeur h de la hauteur du bord du réflecteur 12 vis-à-vis de cette surface d'exposition (tgα =
Figure imgb0007
).3. Furniture according to one of claims 1 and 2, having an exposure surface with a width delimited by points A and B and equal to d, an edge height of the reflector (12) vis-à-vis this surface of exposure AB, marked by points B and C and equal to h, C being vertical to B, the angle formed by the lines joining point C and points A and B being equal to alpha, characterized in that in the closure and screen device (5), the reflector (12) is provided with a cross section having a curvature constituted by an arc delimited by points D, C of a circle with center O defined by the meeting point of a bisector (CO) of the angle alpha and a perpendicular bisector of the width (AB), and of radius R equal to the product of half the value (d) of this width AB, and l inverse of the sine of an angle equal to half the angle alpha
Figure imgb0006
 where the tangent of this angle alpha is equal to the quotient of the value d of this width AB, by the value h of the height of the edge of the reflector 12 vis-à-vis this exposure surface (tgα =
Figure imgb0007
). 4. Meuble selon l'une des revendications 1 à 3, caractérisé en ce que dans le dispositif de fermeture et d'écran (5), le réflecteur (12) est réalisé en un matériau choisi parmi les métaux à surface réfléchissante, les matériaux métallisés réfléchissants et les maté­riaux à surface réfléchissante.4. Furniture according to one of claims 1 to 3, characterized in that in the closure and screen device (5), the reflector (12) is made of a material chosen from metals with a reflective surface, metallized reflective materials and materials with a reflective surface. 5. Meuble selon l'une des revendications 1 à 4, caractérisé en ce que dans le dispositif de fermeture et d'écran (5), le réflecteur (12) est constitué par une pièce unique.5. Furniture according to one of claims 1 to 4, characterized in that in the closure and screen device (5), the reflector (12) consists of a single piece. 6. Meuble selon l'une des revendications 1 à 4, caractérisé en ce que dans les dispositifs de fermeture et d'écran (5), le réflecteur (12) est constitué par un assemblage de pièces composantes dont la couleur est choisie parmi une couleur uniforme et plusieurs couleurs assorties.6. Furniture according to one of claims 1 to 4, characterized in that in the closure and screen devices (5), the reflector (12) consists of an assembly of component parts, the color of which is chosen from one uniform color and several assorted colors. 7. Meuble selon la revendication 2, caractérisé en ce que dans la partie supérieure (3) les bandeaux ou plaques latérales (14) sont constitués par des matériaux choisis parmi les matériaux transpa­rents, translucides et opaques.7. Furniture according to claim 2, characterized in that in the upper part (3) the strips or side plates (14) are made of materials chosen from transparent, translucent and opaque materials. 8. Meuble selon la revendication 2, caractérisé en ce qu'il comprend dans sa partie supérieure (3) servant de support d'éclai­rage, un système de tubes et/ou d'ampoules électriques qui éclaire la surface d'exposition de denrées dans la partie inférieure (2) et les bandeaux ou plaques latérales (14), en lumière choisie parmi les lumières directe et réfléchie, diffuse et sous forme de faisceau ou spot, blanche et monochrome ou polychrome.8. Furniture according to claim 2, characterized in that it comprises in its upper part (3) serving as a lighting support, a system of tubes and / or electric bulbs which illuminates the surface for the display of foodstuffs in the lower part (2) and the strips or side plates (14), in light chosen from direct and reflected light, diffuse and in the form of a beam or spot, white and monochrome or polychrome. 9. Meuble selon l'une des revendications 1 à 6, caractérisé en ce que le dispositif de fermeture et d'écran (5) est suspendu à la partie supérieure (3) du meuble au moyen de câbles ou courroies (6) et de poulies folles (7) et déplacé dans ses positions haute et basse par la commande d'un moteur électrique (9) et des arbres de transmission (10) effectuant respectivement un enroulement de ces câbles ou courroies (6) dans des poulies d'emmagasinage (8) et un déroulement de ceux-ci de ces poulies (8).9. Furniture according to one of claims 1 to 6, characterized in that the closure and screen device (5) is suspended from the upper part (3) of the furniture by means of cables or belts (6) and idler pulleys (7) and moved in its high and low positions by the control of an electric motor (9) and transmission shafts (10) respectively winding these cables or belts (6) in storage pulleys (8) and a sequence of these pulleys (8).
EP19880400355 1987-02-20 1988-02-17 Refrigerated cabinet provided with a mobile closing and shielding device Expired - Lifetime EP0284452B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8702209A FR2611126B1 (en) 1987-02-20 1987-02-20 REFRIGERATION FURNITURE PROVIDED WITH A MOBILE CLOSURE AND SCREEN DEVICE
FR8702209 1987-02-20

Publications (2)

Publication Number Publication Date
EP0284452A1 true EP0284452A1 (en) 1988-09-28
EP0284452B1 EP0284452B1 (en) 1993-08-04

Family

ID=9348128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880400355 Expired - Lifetime EP0284452B1 (en) 1987-02-20 1988-02-17 Refrigerated cabinet provided with a mobile closing and shielding device

Country Status (4)

Country Link
EP (1) EP0284452B1 (en)
DE (1) DE3882760T2 (en)
ES (1) ES2042780T3 (en)
FR (1) FR2611126B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0527339A1 (en) * 1991-08-09 1993-02-17 GETA Gesellschaft für Energietechnik und -Anwendung mbH Thermal insulating cover on refrigerated chests, especially deep-freezing chests

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1955186A (en) * 1929-08-02 1934-04-17 Fred A Parsons Refrigeration apparatus
FR1350021A (en) * 1962-12-10 1964-01-24 Showcase
FR2193317A5 (en) * 1972-07-19 1974-02-15 Cremier Nantais Soc
FR2335808A1 (en) * 1975-12-19 1977-07-15 Neuhaus Bonnet Deep freezer for display and storage - disconnects upper heat exchanger and reconnects it by movements of cover
EP0114017A1 (en) * 1982-12-30 1984-07-25 Bonnet Refrigeration Closure or screen for a refrigerated cabinet
GB2162417A (en) * 1984-08-02 1986-02-05 John Shaw Cover for a food storage and a display area

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1955186A (en) * 1929-08-02 1934-04-17 Fred A Parsons Refrigeration apparatus
FR1350021A (en) * 1962-12-10 1964-01-24 Showcase
FR2193317A5 (en) * 1972-07-19 1974-02-15 Cremier Nantais Soc
FR2335808A1 (en) * 1975-12-19 1977-07-15 Neuhaus Bonnet Deep freezer for display and storage - disconnects upper heat exchanger and reconnects it by movements of cover
EP0114017A1 (en) * 1982-12-30 1984-07-25 Bonnet Refrigeration Closure or screen for a refrigerated cabinet
GB2162417A (en) * 1984-08-02 1986-02-05 John Shaw Cover for a food storage and a display area

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0527339A1 (en) * 1991-08-09 1993-02-17 GETA Gesellschaft für Energietechnik und -Anwendung mbH Thermal insulating cover on refrigerated chests, especially deep-freezing chests

Also Published As

Publication number Publication date
DE3882760D1 (en) 1993-09-09
EP0284452B1 (en) 1993-08-04
DE3882760T2 (en) 1994-03-31
FR2611126A1 (en) 1988-08-26
ES2042780T3 (en) 1993-12-16
FR2611126B1 (en) 1989-05-26

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