EP0151359B1 - Door for a cooking apparatus and method of mounting it - Google Patents

Door for a cooking apparatus and method of mounting it Download PDF

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Publication number
EP0151359B1
EP0151359B1 EP19840402610 EP84402610A EP0151359B1 EP 0151359 B1 EP0151359 B1 EP 0151359B1 EP 19840402610 EP19840402610 EP 19840402610 EP 84402610 A EP84402610 A EP 84402610A EP 0151359 B1 EP0151359 B1 EP 0151359B1
Authority
EP
European Patent Office
Prior art keywords
door
panes
cookstove
foam
pane
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.)
Expired
Application number
EP19840402610
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German (de)
French (fr)
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EP0151359A1 (en
Inventor
Alain Gernez
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.)
Compagnie Europeenne pour lEquipement Menager SA
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Compagnie Europeenne pour lEquipement Menager SA
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Publication of EP0151359A1 publication Critical patent/EP0151359A1/en
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Publication of EP0151359B1 publication Critical patent/EP0151359B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/04—Doors specially adapted for stoves or ranges with transparent panels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
  • Commercial Cooking Devices (AREA)

Description

La présente invention concerne une porte d'un appareil de cuisson constituée d'un cadre métallique enserrant deux vitres parallèles et espacées l'une de l'autre. Elle concerne également le procédé de montage d'une telle porte.The present invention relates to a door of a cooking appliance consisting of a metal frame enclosing two parallel panes spaced from one another. It also relates to the method of mounting such a door.

Les portes d'appareils de cuisson connues sont généralement constituées de structures mécaniques dans lesquelles sont insérées deux vitres espacées l'une de l'autre et maintenues séparément.Known cooking appliance doors generally consist of mechanical structures into which are inserted two panes spaced from one another and kept separate.

Ces structures mécaniques sont soudées entre elles, et sont constituées de pièces en acier émaillé. L'émail vitrifié est fragile et peut casser à l'aplomb des points de soudure (voir par exemple GB-A-510 834).These mechanical structures are welded together, and consist of pieces of enamelled steel. Vitreous and porcelain enamel is fragile and can break directly below the solder points (see for example GB-A-510 834).

Les pertes thermiques, dues à la conductibilité thermique de l'acier, sont pratiquement équivalentes à 50% des pertes thermiques totales de ces appareils de cuisson. De plus, le montage de ces portes ne se prête pas à une automatisation.The heat losses, due to the thermal conductivity of the steel, are almost equivalent to 50% of the total heat losses of these cooking appliances. In addition, the mounting of these doors does not lend itself to automation.

La présente invention permet de supprimer ces inconvénients en proposant une porte d'un appareil de cuisson ne comportant pas de structures métalliques complexes conductrices mais un simple cadre métallique. De manière à diminuer sensiblement les pertes thermiques latérales, une vitre s'appuie directement sur le joint entourant le moufle de l'appareil. De plus, la porte selon l'invention se prête aisément à une automatisation de son montage qui présente également une flexibilité adaptable à toutes les largeurs conventionnelles de portes.The present invention overcomes these drawbacks by providing a door to a cooking appliance not comprising complex conductive metal structures but a simple metal frame. In order to significantly reduce the lateral heat losses, a window pane rests directly on the seal surrounding the muffle of the device. In addition, the door according to the invention easily lends itself to an automation of its mounting which also has a flexibility adaptable to all conventional widths of doors.

La présente invention a pour objet une porte constituée d'un cadre métallique et de deux vitres parallèles et espacées l'une de l'autre, et destinée à un appareil de cuisson comportant un joint autour de son moufle, caractérisée en ce que le cadre est constitué de deux montants latéraux entièrement placés entre les deux vitres pour les espacer, et constituant chacun deux bords opposés de la porte, et d'une traverse supérieure et d'une traverse inférieure tenant les deux vitres serrées contre les deux montants latéraux et constituant les deux autres bords de la porte, et en ce que l'une des vitres est prévue pour prendre appui sur ledit joint entourant le moufle de l'appareil.The present invention relates to a door consisting of a metal frame and two parallel panes spaced from one another, and intended for a cooking appliance comprising a seal around its muffle, characterized in that the frame consists of two side uprights fully placed between the two panes to space them out, and each constituting two opposite edges of the door, and of an upper cross member and a lower cross member holding the two panes tight against the two lateral uprights and constituting the other two edges of the door, and in that one of the panes is provided to bear on said seal surrounding the muffle of the device.

Selon un mode de réalisation, la traverse supérieure et la traverse inférieure comportent chacune deux parties distinctes réunies par des moyens de vissage, afin de permettre le serrage contre les deux montants latéraux.According to one embodiment, the upper cross member and the lower cross member each comprise two separate parts joined by screwing means, in order to allow clamping against the two lateral uprights.

Avantageusement, elle comporte dans l'espace laissé libre entre les deux vitres, un remplissage en mousse qui forme hublot dans la partie centrale de la porte.Advantageously, it comprises in the space left free between the two panes, a foam filling which forms a porthole in the central part of the door.

De préférence, la mousse est une mousse organique, notamment furannique.Preferably, the foam is an organic foam, in particular furan.

Il est décrit ci-après, à titre d'exemple et en référence aux figures du dessin annexé, une porte d'un appareil de cuisson selon l'invention.It is described below, by way of example and with reference to the figures of the accompanying drawing, a door of a cooking appliance according to the invention.

La figure 1 montre en perspective une porte selon l'invention.Figure 1 shows in perspective a door according to the invention.

La figure 2 montre la porte selon l'invention en coupe suivant Il de la figure 1.FIG. 2 shows the door according to the invention in section along II of FIG. 1.

La figure 3 montre la porte en coupe suivant III de la figure 1.FIG. 3 shows the door in section along III of FIG. 1.

Dans la figure 1, une porte 10 montée sur un appareil de cuisson ferme totalement une enceinte de cuisson délimitée par un moufle.In FIG. 1, a door 10 mounted on a cooking appliance completely closes a cooking enclosure delimited by a muffle.

Cette porte 10 comporte un cadre métallique 11 composé de deux montants latéraux 12.13. d'une traverse supérieure 14 et d'une traverse inférieure 15.This door 10 comprises a metal frame 11 composed of two lateral uprights 12.13. an upper cross member 14 and a lower cross member 15.

La traverse supérieure 14 est constituée de deux parties 14A, 14B réunies par deux moyens de vissage non représentés. La partie 14A de cette traverse supérieure reçoit une poignée 16 permettant d'ouvrir cette porte.The upper cross member 14 consists of two parts 14A, 14B joined by two screwing means not shown. Part 14A of this upper crosspiece receives a handle 16 allowing this door to be opened.

La traverse inférieure 15 est également constituée de deux parties 15A, 15B réunies par des moyens de vissage 30, 30'. Au niveau de cette traverse inférieure, l'axe 17 représente symboliquement l'axe de rotation de la porte qui peut être matérialisé, par exemple, par deux tiges d'acier tournant chacune dans un montant latéral et raccordée chacune à une bride fixée dans l'appareil.The lower cross member 15 also consists of two parts 15A, 15B joined by screwing means 30, 30 '. At this lower cross member, the axis 17 symbolically represents the axis of rotation of the door which can be materialized, for example, by two steel rods each rotating in a lateral upright and each connected to a flange fixed in the 'apparatus.

Deux vitres 20, 21 sont placées de part et d'autre des montants latéraux 12, 13, et elles sont serrées contre ces montants par les traverses 14, 15.Two panes 20, 21 are placed on either side of the lateral uprights 12, 13, and they are clamped against these uprights by the crosspieces 14, 15.

De préférence, ces deux vitres 20, 21 sont séparées par un remplissage en mousse 22 formant hublot 23. Cet habillage assure une bonne étanchéité à la vapeur entre les deux vitres et permet de s'affranchir d'une opération de sérigraphie réalisée généralement sur la vitre intérieure des portes d'appareils de cuisson, dans le cas de l'utilisation d'un isolant classique. Ce remplissage en mousse peut être soit une pièce moulée séparément et rapportée entre les deux vitres, soit une pièce moulée sur une seule vitre, soit un moulage in situ entre les deux vitres. Dans les deux derniers cas, ce remplissage assure en outre, une bonne rigidité de la porte et diminue ainsi les risques d'éclatement des deux vitres.Preferably, these two panes 20, 21 are separated by a foam filling 22 forming porthole 23. This covering ensures good vapor tightness between the two panes and makes it possible to dispense with a screen printing operation generally carried out on the interior glass of the doors of cooking appliances, in the case of the use of a conventional insulator. This foam filling can be either a part molded separately and attached between the two panes, or a part molded on a single pane, or an in situ molding between the two panes. In the latter two cases, this filling also ensures good rigidity of the door and thus reduces the risk of the two windows bursting.

Le hublot 23 formé dans la partie centrale de la porte peut bien entendu prendre toutes les formes et les dimensions permises par le moulage de mousses organiques constituant le remplissage 22.The porthole 23 formed in the central part of the door can of course take any shape and size permitted by the molding of organic foams constituting the filling 22.

Dans la figure 2, on voit en coupe un bord latéral de la porte, montrant les deux vitres 20, 21 séparées par un remplissage en mousse 22 serrées sur un montant vertical 12. Bien entendu, une coupe complète permettrait de montrer l'autre montant latéral situé à l'autre bord latéral de la porte.In Figure 2, we see in section a side edge of the door, showing the two panes 20, 21 separated by a foam filling 22 clamped on a vertical upright 12. Of course, a complete section would show the other amount side located at the other side edge of the door.

L'appareil de cuisson comporte un joint d'étanchéité 40 placé sur le pourtour de l'enceinte de cuisson 2, et la vitre 20 s'appuie directement sur ce joint. Les pertes thermiques latérales sont alors faibles car le verre est un bon isolant au regard de ces pertes thermiques latérales.The cooking appliance comprises a seal 40 placed around the periphery of the cooking enclosure 2, and the glass 20 is supported directly on this seal. The lateral heat losses are then low because glass is a good insulator against look at these lateral heat losses.

Dans la figure 3, la traverse supérieure constitue le bord supérieur de la porte et la traverse inférieure constitue le bord inférieur de la porte.In FIG. 3, the upper cross member constitutes the upper edge of the door and the lower cross member constitutes the lower edge of the door.

La traverse supérieure 14 comporte deux parties distinctes 14A, 14B, serrées entre elles par un moyen de vissage. Dans un mode de réalisation préféré, la poignée 16 peut constituer une partie de ce moyen de vissage : dans ce cas, elle comporte à chaque extrémité une patte 16' qui s'engage dans un orifice de la partie 14A de la traverse supérieure, située côté poignée (c'est-à-dire côté extérieur de l'appareil de cuisson). Cette patte 16' est taraudée et une vis 35 est vissée dans le taraudage, après avoir été engagée dans un orifice de la partie 14B de la traverse supérieure située côté appareil de cuisson (c'est-à-dire côté intérieur de l'appareil de cuisson), afin de rapprocher les deux parties 14A, 14B l'une de l'autre pour serrer les deux vitres contre les montants latéraux.The upper cross member 14 comprises two separate parts 14A, 14B, clamped together by a screwing means. In a preferred embodiment, the handle 16 may constitute part of this screwing means: in this case, it comprises at each end a tab 16 'which engages in an orifice in the part 14A of the upper crossmember, located handle side (i.e. outside of the cooking appliance). This tab 16 ′ is tapped and a screw 35 is screwed into the tapping, after having been engaged in an orifice in the part 14B of the upper crosspiece located on the cooking appliance side (that is to say on the interior side of the appliance ) to bring the two parts 14A, 14B together to tighten the two panes against the side uprights.

La traverse inférieure 15 comporte deux parties distinctes 15A, 15B serrées entre elles par un- moyen de vissage 30. Ce moyen de vissage consiste en un écrou 31 muni d'un épaulement et recevant une vis de serrage 32. Cet écrou peut également être un taraudage dans une patte en Z soudée sur la partie 15A. Dans le cas où la poignée 16 ne constitue pas une partie des moyens de vissage, la traverse supérieure 14 possède une structure identique à la traverse inférieure.The lower cross member 15 comprises two separate parts 15A, 15B clamped together by a screwing means 30. This screwing means consists of a nut 31 provided with a shoulder and receiving a clamping screw 32. This nut can also be a tapping in a Z-tab welded on part 15A. In the case where the handle 16 does not constitute part of the screwing means, the upper cross member 14 has a structure identical to the lower cross member.

Dans l'exemple de réalisation de la figure 3, on remarque que la porte est tenue en quatre points, deux points supérieurs à l'extrémité de la poignée et deux points inférieurs symétriques.In the embodiment of Figure 3, we note that the door is held at four points, two upper points at the end of the handle and two symmetrical lower points.

Dans un mode de réalisation (non représenté), les éléments d'articulation entre la porte et l'appareil de cuisson sont intégrés aux montants latéraux.In one embodiment (not shown), the articulation elements between the door and the cooking appliance are integrated into the lateral uprights.

Le montage d'une telle porte est simple et peut aisément être automatisé.The mounting of such a door is simple and can easily be automated.

Un premier procédé de montage consiste à placer l'une des vitres horizontalement sur un support approprié, puis à amener les deux montants latéraux 12, 13 en position sur cette vitre, à venir placer l'autre vitre sur les deux montants, puis à venir placer les deux parties 14A, 15A et 14B, 15B constitutives des deux traverses 14, 15 et à les serrer à l'aide des moyens de serrage.A first mounting method consists of placing one of the panes horizontally on an appropriate support, then bringing the two lateral uprights 12, 13 into position on this pane, coming to place the other pane on the two uprights, then coming place the two parts 14A, 15A and 14B, 15B constituting the two crosspieces 14, 15 and tighten them using the clamping means.

Dans le cas où un remplissage en mousse 22 doit être effectué, et s'il est composé d'une pièce moulée séparée, cette pièce est soit mise en place avant la seconde vitre après que les montants latéraux aient été positionnés, soit mise en place avant les montants latéraux, après que la première vitre ait été placée horizontalement sur son support.In the case where a foam filling 22 must be carried out, and if it is composed of a separate molded part, this part is either put in place before the second window after the side uprights have been positioned, or put in place before the side uprights, after the first window has been placed horizontally on its support.

Dans le cas où le remplissage en mousse consiste en une pièce moulée sur une des vitres, le procédé de montage de l'ensemble consiste tout d'abord à placer horizontalement sur un support soit la vitre sur laquelle est moulée le remplissage, soit l'autre vitre, puis à mettre les montants latéraux 12, 13 en place, la seconde vitre et enfin les traverses 14, 15.In the case where the foam filling consists of a part molded on one of the panes, the assembly method of the assembly first of all consists in placing horizontally on a support either the pane on which the filling is molded, or the another window, then put the side uprights 12, 13 in place, the second window and finally the cross members 14, 15.

De préférence, c'est la vitre sur laquelle est moulée le remplissage qui est d'abord mise en place, ce qui permet de bien positionner les montants latéraux.Preferably, it is the pane on which the filling is molded which is first put in place, which makes it possible to correctly position the lateral uprights.

Il est bien entendu que lors du moulage, l'encombrement des montants latéraux 12, 13 sur la vitre est prévu, et que leur emplacement est laissé libre.It is understood that during molding, the size of the lateral uprights 12, 13 on the glass is provided, and that their location is left free.

Dans le cas où le moulage est effectué in situ entre les deux vitres, il est effectué par exemple par injection lorsque le premier procédé de montage est terminé. L'injection s'effectue alors par l'intermédiaire d'une fente à la jonction entre un montant latéral et une traverse.In the case where the molding is carried out in situ between the two panes, it is carried out for example by injection when the first mounting process is completed. The injection is then carried out via a slot at the junction between a lateral upright and a cross-member.

L'injection peut également être effectuée après qu'une première traverse de serrage ait été mise en place et avant la mise en place de la seconde.The injection can also be carried out after a first clamping crosspiece has been put in place and before the second is put in place.

Claims (12)

1. A door (10) made up of a metallic frame (11) and two spaced parallel panes (20 and 21) and intended for use in a cookstove (1) comprising a seal (40) placed around its casing, characterized in that the frame is exclusively constituted by two lateral uprights (12 and 13) entirely placed between the two panes in order to space them and constituting two opposite side edges of the door, by an upper crosspiece (14) and by a lower crosspiece (15) holding the two panes clamped against the two lateral uprights and constituting the two other edges of the frame, and in that one of the panes is provided in order to bear against the said seal placed around the casing of the cookstove.
2. The door for a cookstove as claimed in claim 1 characterized in that the upper crosspiece (14) and the lower crosspiece (15) each comprise two distinct parts connected together by screw means.
3. The door for a cookstove as claimed in claim 2 characterized in that the grip (16) of the door comprises at least one screw threaded cleat (16') which fits into a hole in that part (14A) of the upper crosspiece (14) which is located on the outer side of the cookstove and in that a screw (35) is fitted into a hole in the other part (14B) of the upper crosspiece (14) located at the lower side of the cookstove, and is screwed into the tapped hole in order to draw together the two parts of the crosspiece (14) and to clamp the two panes (20 and 21) against the lateral uprights (12 and 13).
4. The door for a cookstove as claimed in claim 1 characterized in that it comprises a foam filling (22) in the free space left between the two panes.
5. The door for a cookstove as claimed in claim 4 characterized in that the foam filling (22) defines a window (23) in the central part of the door (10).
6. The door for a cookstove as claimed in any one of the claims 4 and 5 characterized in that the foam is an organic foam.
7. The door for a cookstove as claimed in claim 6 characterized in that the foam is a furanic foam.
8. A method of assembling a door for a cookstove as claimed in claim 1 characterized in that a first pane (20) is placed horizontally, in that the two lateral uprights (12 and 13) are placed in position on the said pane, in that the second pane (21) is then placed on the assembly formed by the uprights (12 and 13) and the first pane and in that the crosspieces (14 and 15) are put in place in such a manner as to clamp the two panes (20 and 21) onto the lateral uprights (12 and 13).
9. The method of assembly as claimed in claim 8 characterized in that a surrounding member (22) of molded foam is placed on the first pane (20) before the lateral uprights (12 and 13), the second pane (21) and the crosspieces (14 and 15) have been put in place.
10. The method of assembly as claimed in claim 8 characterized in that a surrounding member (22) of foam is produced between the two panes after the crosspieces (14 and 15) have been put in place.
11. The method of assembly as claimed in claim 10 characterized in that the surrounding member (22) of foam is produced by injection.
12. The method of assembly as claimed in claim 8 characterized in that a surrounding member (22) of foam is produced on one of the two panes (20 and 21) before same is put in place.
EP19840402610 1983-12-22 1984-12-14 Door for a cooking apparatus and method of mounting it Expired EP0151359B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8320574A FR2557272B1 (en) 1983-12-22 1983-12-22 DOOR OF A COOKING APPLIANCE
FR8320574 1983-12-22

Publications (2)

Publication Number Publication Date
EP0151359A1 EP0151359A1 (en) 1985-08-14
EP0151359B1 true EP0151359B1 (en) 1988-05-04

Family

ID=9295448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840402610 Expired EP0151359B1 (en) 1983-12-22 1984-12-14 Door for a cooking apparatus and method of mounting it

Country Status (4)

Country Link
EP (1) EP0151359B1 (en)
DE (1) DE3470942D1 (en)
ES (1) ES294891Y (en)
FR (1) FR2557272B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3602455A1 (en) * 1986-01-28 1987-07-30 Gaggenau Werke Baking oven
GB2290611B (en) * 1994-06-14 1998-06-24 Blue Circle Domestic Appliance Cooking appliances
DE19705120A1 (en) * 1997-02-11 1998-08-13 Gaggenau Hausgeraete Gmbh Oven door
FR2792713B1 (en) 1999-04-26 2001-07-20 Simon COLD DOOR OVEN
DE10047154A1 (en) * 2000-09-22 2002-04-11 Bsh Bosch Siemens Hausgeraete Cooker door has viewing panel opening near cooking surface forming thermal resistance in transverse heat conduction direction from central area outwards to edge region of viewing panel
DE10337438A1 (en) * 2003-08-14 2005-03-10 Bsh Bosch Siemens Hausgeraete Oven door and door floor for it
DE102014214833A1 (en) * 2014-07-29 2016-02-04 BSH Hausgeräte GmbH Isolation device, door and household cooker

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB510834A (en) * 1938-10-11 1939-08-09 Masie Paul Improvements in and relating to oven doors
GB1399874A (en) * 1971-10-23 1975-07-02 Creda Electric Ltd Door for ovens and other heated chambers

Also Published As

Publication number Publication date
ES294891U (en) 1986-10-16
EP0151359A1 (en) 1985-08-14
DE3470942D1 (en) 1988-06-09
ES294891Y (en) 1987-07-01
FR2557272A1 (en) 1985-06-28
FR2557272B1 (en) 1988-06-17

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