FR2600757A1 - HOUSEHOLD COOKING DOOR - Google Patents

Abstract

THE INVENTION RELATES TO A HOUSEHOLD COOKING OVEN DOOR, INCLUDING AN INSULATING PART 1 ON THE COOKING ENCLOSURE SIDE, GLASS 3 KEEPED AT A DISTANCE SENSITIVELY PARALLEL TO THIS INSULATED DOOR BY MAINTENANCE ELEMENTS 4, AND A ZONE AIR CIRCULATION BETWEEN GLASS 3 AND THE INSULATION PART. IT IS CHARACTERIZED IN THAT IT INCLUDES A HANDLE CONSTITUTED BY AT LEAST PART OF AT LEAST ONE EDGE OF THE GLASS 3 AND OR BY AT LEAST ONE ADDITIONAL PART 6, 14 FIXED ON ONE OF SAID EDGES.

Description

HOUSEHOLD COOKING DOOR

  The invention relates to a household cooking oven door having on its front face a window behind which is ensured a circulation of air, so that the temperature in front of this window is never dangerous for the user or for the people likely to be in contact with this window. In modern kitchens, we are looking more and more to achieve elements combining aesthetics and functionality. This is the case of household appliances or household appliances among which, among others, there are stoves and ovens. A cooker is an appliance consisting of a cooktop superimposed on one or

several ovens.

  An oven has a door whose functions are to avoid calorie losses during cooking and to prevent people in the vicinity or using the appliance from burning when the heaters are in operation. In addition, the door of an oven must not detract from the overall aesthetics of

  the device on which it is attached.

  An oven door generally comprises a portion of insulating material enclosed for example between two metal sheets. Often the window is formed through the insulating material and sheets, and is constituted by one or more panes that monitor the cooking dishes within the enclosure. The door can be handled using a fixed handle

  outside, usually horizontally at the top.

  However, the known doors have drawbacks.

  Indeed, the temperatures reached in the chamber are sometimes high enough for a long enough time for the door to end up letting go of heat. This is because if one wanted to achieve perfect insulation, a very large thickness of insulating material would have to be placed, and the door would be enormous. In addition, the window, when present, lets out heat outward regardless of the thickness of the insulating material. Also, outside temperature rises may be due to thermal bridges related to the presence of parts or metal parts joining the two outer and inner panels of the door. The temperature reached by the outside of the door can be dangerous for people having to handle the door,

or nearby.

  In order to remedy this drawback, doors are provided which comprise, on the front face, a glass plate parallel to the sheet metal.

  outside and to the porthole, in case of presence thereof, and an air circulation device between this glass plate, the sheet and.

  possibly the porthole. The presence of renewed air prevents a

  excessive heating of the outer face of the glass plate. However, the known embodiments either do not allow optimum protection of the user at the handle, which is fixed to the outer sheet and therefore undergo conductive heating, or are too expensive because they require the realization of a special handle with air circulation inside to protect the user.

  The invention therefore relates to an oven door whose structure is such that the safety of people near and the user is preserved vis-à-vis the heat, without the amount of insulating material is increased and which does not have any protruding elements that could injure close persons or users during a shock, and which remains of a pleasing appearance. According to the invention, a household cooking oven door having an insulating part on the cooking chamber side, a window substantially parallel to this insulating part, at a distance from the latter, and a circulation zone of air between the window and the insulating part, is characterized in that it comprises a handling handle constituted by at least a portion of the edges of the window and / or by at least one additional piece fixed on one of the

less of said flanges.

  It starts from the fact that the edges of the glass are cold zones with respect to the central zones and that it is therefore possible to use said flanges to manipulate the door and, more importantly, to support an additional element serving as: handle. Thus, it is no longer necessary to build a handle

  complicated, with an air circulation circuit therein, since the handle is supported or constituted by a cold part of the window.

  According to another characteristic, means are provided for

  limit the movement of the fingers or the hand of a person behind the window, to prevent them from being found in a hot and dangerous zone, and to avoid the introduction of foreign bodies behind the window.

  Other features and benefits will appear with the

  description of some embodiments made with regard to

  annexed figures in which: - Figure 1 is a view of a stove with a door 20 according to the invention; - Figure 2 is a sectional view AA of the door of Figure I; - Figure 3 is a view of a cooking appliance provided with a door variant according to the invention; - Figures 4, 5, 6 are other variants of compliant doors

to the invention.

  In Figure 1, there is shown a range equipped with a

door according to the invention.

  The door has a first part 1 containing insulation material and provided with a porthole 2 to monitor the dishes to

inside the oven enclosure.

  Forward and at a distance from this first part, there is a

  window 3 maintained by means 4 fixed to this first part.

  The fixing of the window 3 is ensured so that an air circulation

  can take place between it and the first part 1.

  In the example shown, the means 4 for holding the pane 3 are constituted by at least two U-shaped elements fixed to the vertical edges of the pane 3 and to the first part I of the door. The base of the U serves to prevent the insertion of fingers or foreign bodies from the side of the door and to maintain the spacing, while the window is fixed on one side of the U, the other side being

  attached to the first part I of the door.

  In the example, these elements 4 start from the bottom of the window, but 10 are of a length less than the height of the window, so that the

  upper flange 5 of the glass can be used as a handle, or preferably as a support for a part 6, for example in the form of a bar, facilitating handling, improving the aesthetics, and avoiding direct contacts that leave traces 15 fingers on the glass.

  This piece 6, for example plastic, is hollowed with a longitudinal groove, engaged on the upper rim 5 of the pane. In the example, it has a cylindrical shape, and is the length of the upper rim, but it is obvious that on the one hand the shape can be quite different, for example flattened, provided that it allows a grip in hands easy, and that on the other hand the piece can

be of different length.

  Moreover, in order to confer good aesthetics to the assembly, the piece 6 may have particular reliefs or decorations. In order to prevent objects falling between the window 3 and the part 1 of the door having the insulating material, and above all, to prevent the fingers or the hands of the user from engaging too much between these two elements, a piece 7 flat, connecting the upper ends of the elements 4 for maintaining the window 2 is provided. In order to allow the continuous flow of air (represented by arrows) between the lower part of the door and the upper part, this part 7 is pierced with holes 70, 71, 72, or alternatively, in a variant , not shown, is less wide than the space determined between the window 3 and the first part 1 of the door, by the holding elements 4. Thus, in this case there remains a space between the window and the part 7 and / or between the first part

  I of the door and the room 7, to allow the circulation of air.

  Preferably, the elements 4 for maintaining the window 3 are made of insulating material, to prevent anyone who touches them, when the oven is operating, burns itself. In addition, these elements help to prevent the introduction of fingers or foreign bodies

behind the window.

  Preferably, the elements 4 for holding the pane 3 are fixed by bonding them to the part 1 of the

  door enclosing the insulating material, and the window 3 itself is fixed by gluing on these elements. However, it is understood that any other method of attachment is possible, provided to avoid as much thermal bridges to the front face of the glass. Thus screws or rivets can be used.

  FIG. 2 is a sectional view AA of FIG. 1 which shows the relative location of the window 3 with respect to the part 1 of the

  door containing insulating material and window 2.

  Part I containing the insulating material and the porthole is made in a known manner, namely that the insulating material 21 is

  example trapped between an inner sheet 22 on the cooking chamber side, and an outer sheet 23, glass side, that is to say outer side of the cooking appliance.

  The window 2 is made, for example by means of two panes 24, 25, limiting a space in the thickness of this part 1.

  The window 3 is kept away from the outer face of the part 1, here the sheet 23 and the window 25, thanks to the elements 4 of maintenance. An air circulation channel S is thus created from bottom to

  high between the window 3 and said outer face.

  In one embodiment, the distance between said face

  23, 25 and the window 3 is of the order of 3 cm.

  The distance is a function of the maximum operating temperature for the oven and may be included, depending on the type

of apparatus, between 0.1 and 5 cm.

  FIG. 3 represents a cooking appliance whose oven is

  closed by a door variant according to the invention.

  In the example of Figure 3, an awning 9 masks, for aesthetic and safety reasons, the upper edge of the window 3 and the strip. This cover 9 is for example a part of the lid 10 serving to cover the hob in the case where the cooking appliance carrying the door is a stove. It is therefore no longer possible, in this case, to manipulate the door with the aid of the upper rim 5 of the pane, and therefore the upper part 11, 10 of at least one of the two lateral flanges is used, left free by the elements 4 for holding the glass on the door, either directly as a handle, or to carry a room improving comfort

  when taking in hand and / or overall aesthetics.

  The evacuation of the hot air flowing behind the window 15 takes place in the areas where the user may be required to place his hands to manipulate the door because the awning 9, when present, prohibits the evacuation air above the upper rim 5 of the window. This is not a disadvantage because the temperature of the exhaust air does not represent any danger to the user. The device can however be improved to avoid bringing the hands into the air evacuation zone, by providing evacuation ports on the side elements 4 for maintaining the window, or

spaces in their proximity.

  In the example shown, a part 7, '- to prevent foreign bodies are introduced between the pane 3 and the part 1 of the door containing the insulating material and the window (not shown),

  connects the upper edges of the elements 4 for maintaining the window 3.

  It is pierced with holes 70, 71, 72 to allow the circulation of air.

  - The fresh air intake is always carried out near the lower area of the glass by a passage provided between the window 3 and the

  part I of the door containing the insulation.

  In the example, a strip 12 is provided in the lower part, which connects the lower edges of the elements 4 for holding the pane 3. A space 13 is left between this strip 12 and the pane 3 for

  allow the entry of air behind the glass 3.

  In Figure 4 is shown an alternative embodiment in which the two upper corners of the window 3 have been truncated and have been replaced by handles 14 carried by the window. The window 3 therefore has two vertical edges, each extended at their upper part by an inclined flange 16 joining the upper horizontal flange 5. Preferably, the space between these different flanges and the part I of the door enclosing the insulating material is surrounded to prevent the introduction of foreign bodies and / or to prevent a user from placing his fingers in the area.

air circulation.

  The entourage is ensured either by means of a single piece profiled,

  with the aid of several additional parts 4, 7, 15.

  At least a portion 4 of this or these parts is used to ensure the fixing of the window 3 and 7 means are provided to ensure the evacuation of hot air. In the example, the hot air is discharged in the part 7 of the environment close to the upper rim 5 of the window, using holes 70, 71. An evacuation of the air can be assured of part by any other means, for example in

  leaving at least one space between the window pane and surrounding area 4, 7 and / or at least one space between the surrounding area and the part 1 of the door containing the insulating material, on the other hand at any other location of the surrounding, that is to say also in the lateral zones 4, or inclined 15.

  The fixing of the handles 14 may be provided by gluing or by any other means, near a rim or on one of the flanges

of the window.

  In any case, it is found that the handles are fixed so as not to exceed the plane of the outer face of the window, and this for

  do not risk hurting someone who would come up against it.

  Thus, in the example, the handles 14 each have the shape of a bar bent at 90%, one of the sides of one elbow being in the extension of a vertical rim and the other in the extension of the rim. horizontal 5 of the glass 3. It is clear that it is possible to use any other form of handle that can be attached to the glass 3, near the truncated corners, and that does not protrude forward or on the sides. It is thus possible, for example, to use handles having a curved shape such as that of an arc of a circle

Or other.

  Shells can be provided behind the handles to prevent hands from coming into contact with hot parts

the back of the handles.

  FIG. 5 represents a handle variant on the one hand and means for channeling air on the other hand. A handle 17 is fixed on the lateral edges of the window 3 and consists of a single piece by two vertical uprights and by a horizontal upright

  joining these two vertical uprights.

  The maintenance of the glass is provided by both parties

  horizontal upper 7 and lower not visible in this figure. The vertical surround parts 4 are fixed on the insulating part I while there is a space 18 between the window 3 and these parts 4 to facilitate the lateral circulation of the air as shown by the arrows in the figure.

  In this case, the upper and lower surround portions 7 may be provided with passages 70, 71 for the air, although this

not required.

  Of course, this mode of air circulation and fixing is usable regardless of the handle.

  FIG. 6 shows, in cross-section, another method of fixing the usable window regardless of the handle in which the surround 4 is simply attached to the insulating part 1, so that there remains a space between the window 3 and this surround, and the maintenance 30 --of the glass is provided with the aid of spacers 26, 27 fixed to the insulating part 1 on the one hand, and to the glass pane 3 on the other hand by means of screws or

any other way.

  Thus, the window can be pierced with holes to allow the passage of screws to the spacers, or else, the end of the spacers, on the glass side, is provided with a flat part allowing the

  gluing the window 3 on this flat.

  Finally, in a variant, not shown, means allow a clipping of the window 3 on its support means 4, 7, 26, 27, 5 to allow its removal for cleaning the air circulation zone.

Claims (15)

  1. Domestic cooking oven door, having an insulating portion (1) on the side of the cooking chamber, a window (3) kept at a distance substantially parallel to this insulating door by elements (4) for holding, and a air circulation zone between the pane (3) and the insulating part, characterized in that it comprises a handling handle constituted by at least a portion of at least one rim of the pane (3) and / or by at least one piece   additional (6, 14, 17) attached to one of said flanges.   2. Door according to claim 1, characterized in that the handle is constituted by the upper rim (5) of the pane (3).   3. Door according to claim 1, characterized in that the handle is constituted by a piece (6) additional fixed-on the   upper edge (5) of the window (3).   4. Door according to claim 3, characterized in that the piece (6) additional has a longitudinal groove, engaged   on the upper flange (5) of the window (3).   5. Door according to claim 1, characterized in that the handle is constituted and / or carried by the upper part of the   minus one of the two vertical edges of the window (3).   6. Door according to claim 5, characterized in that the handle (17) comprises two vertical uprights, one attached to each vertical edge of the window (3) and a horizontal amount joining the two vertical uprights.   Door according to claim 5, characterized in that the window (3) has two vertical flanges, an upper flange (5) and two oblique flanges (16) joining each of the vertical flanges to the upper flange, and in that it comprises a handle (14) fixed to the window, close to said oblique flanges, in the plane of the window (3).   8. Door according to any one of claims I to 7   previous, characterized in that it comprises means (4, 7) for preventing the introduction of foreign bodies and for limiting the stroke of the fingers of a person between the window (3) and the insulating part (1), while by allowing easy grip of the handle. 9. Door according to claim 8, characterized in that said means (4, 7) are placed at least near the edges vertical windows (3).   10. Door according to claim 8, characterized in that said means (4, 7) are placed at least near the rim. upper (5) of the window (3).   11. Door according to claim 8, characterized in that said means (4, 7) are constituted in part at least by the   elements (4) for holding the window (3) on the insulating part (1).   Door according to one of claims 8 to 11,   characterized in that it comprises a fresh air inlet near the lower edge of the window (3) and in that said means (4, 7) are arranged to allow the exit of the air close to the upper part of the window (3) and are orifices (70, 71) and / or a space.   13. Door according to any one of claims 8 to 12, characterized in that between the surrounding parts (4) and vertical   the vertical edges of the window (3) is a space (18) for the passage of air on the sides.   14. Door according to any one of claims 1 to 13,   characterized in that the window (3) is fixed to the insulating part (1) by means of spacers (26, 27).   15. Door according to any one of claims 1 to 14,   characterized in that means are provided for providing the   clipping of the glass on its supports.