EP3064840B1 - Cooking device with a positioned door hinge - Google Patents

Description

Field of the invention

The invention relates to a cooking appliance according to the preamble of claim 1, in particular an oven, a microwave oven, a steamer, comprising a visor, a user door and at least one door hinge for mounting the user door. The invention also relates to a method for assembling the cooking appliance.

background

In principle, it is known to connect a user door via a door hinge with the cooking appliance housing, wherein the user door is rotatably mounted on the door hinge, so that the cooking chamber can be opened and closed by pivoting the user door.

For visual and constructive reasons, it is important that the user door on the front surface does not come to lie obliquely and is aligned parallel to a location on a front panel also arranged. For this purpose, the door hinges can be tightly tolerated, which is associated with considerable costs, or it is necessary to readjust the user door, resulting in a high installation cost.

In DE102008033535 discloses a cooking appliance with a door and a U-shaped aperture. When mounting the device, a constant gap width between the door and the cover can be generated by means of a spacer.

In EP1731704 a cooking appliance with a door damper is disclosed. The door steamer includes a rotatable pin. At this a compression plate is fixed, which rotates together with the pin in a viscous fluid in the door damper.

Presentation of the invention

It is therefore the task of providing a cooking appliance of the type mentioned, which is structurally simple.

This object is achieved by the cooking appliance according to claim 1.

• ein Gargerätegehäuse mit einer ersten Wand und einer der ersten Wand gegenüberliegenden zweiten Wand;
• eine Benutzertüre, mit welcher eine Beschickungsöffnung eines Garraums verschlossen werden kann;
• eine Blende, wobei es sich dabei um eine am Gargerät angeordnete Abdeckung handelt. Insbesondere kann die Blende parallel oder in der gleichen Ebene angeordnet sein wie die geschlossene Benutzertüre. Bevorzugt sind an der Blende Bedienelemente angeordnet;
• mindestens ein Türscharnier, zur Verbindung der Benutzertüre mit der ersten und/oder der zweiten Wand. Das Türscharnier weist mindestens einen Stift auf, wobei die Benutzertüre um die Stiftachse des mindestens einen Stifts drehbar gelagert ist.

Accordingly, the cooking appliance has the following components:

• a cooking appliance housing having a first wall and a second wall opposite the first wall;
• a user door, with which a feed opening of a cooking chamber can be closed;
• an aperture, which is a cover arranged on the cooking appliance. In particular, the diaphragm can be arranged in parallel or in the same plane as the closed user door. Preferably, controls are arranged on the panel;
• at least one door hinge for connecting the user door to the first and / or the second wall. The door hinge has at least one pin, wherein the user door is rotatably mounted about the pin axis of the at least one pin.

In this case, the first and the second wall each have a wall bushing for receiving the at least one pin. Furthermore, the diaphragm is arranged on the first and on the second wall.

It is therefore conceivable that, for example, two pins are present, wherein a first pin connects the first wall with a first door hinge and a second pin connects the second wall with a second door hinge.

It is also possible, for example, for a single pin to be arranged both in the wall bushing of the first and in the wall bushing of the second wall by passing the pin continuously along the user door from the first wall to the second wall through two door hinges.

Furthermore, on the first wall as well as on the second wall there is a diaphragm receiving device on which the diaphragm is mounted directly, and both the diaphragm receiving device and the wall socket are part of the same component, namely the first wall or the second wall.

In the described device unnecessarily long tolerance chains are avoided, which would make a precise arrangement of the user door in relation to the aperture impossible. The user door is held over the door hinge and the pin is received directly by the first and / or second wall, on which the shutter is arranged. As a result, it can be ensured in a simple manner that the user door and the panel are aligned approximately parallel to each other and location after assembly.

Furthermore, by the described device, the cost of the cooking appliance can be reduced. Since a shorter tolerance chain is present, the components involved in the tolerance chain can be tolerated less precisely in detail, which allows a more cost-effective production of the individual components. Likewise, a readjustment of the user door and the aperture is no longer necessary, so that the assembly cost can be reduced.

On the cooking appliance, there is often a gap between the panel and the user door. An inclination of the user door and panel is immediately visible to the user, because the gap is unevenly wide due to the relative inclination. By a shorter tolerance chain, an uneven course of the gap can thus be reduced.

Advantageously, the at least one door hinge has a first hinge element and a second one Hinge element on. These are configured and arranged such that the first hinge element and the second hinge element are connected to the pin and arranged rotatable relative to each other about the pin axis. The first hinge element is connected to the cooking appliance housing, in particular to the first and / or the second wall, and the second hinge element is connected to the user door.

The two hinge elements allow easy connection of the hinge with the user door and with the cooking appliance housing. Since the hinge is aligned via the pin on the first and / or on the second wall, it is not necessary that the first hinge element must be connected to the first and / or the second wall. This can also be connected to other components of Gargerätegehäuses.

Advantageously, the first hinge element of the at least one door hinge with the cooking appliance housing, in particular with the first and / or the second wall, via at least one connecting element, in particular via at least one screw, firmly connected in the direction of a pin axis.

The pin is held in the wall socket, but only in two dimensions. The pin and thus also the door hinge can still be moved freely in the direction of the pin axis. For this reason, the door hinge in the direction of the pin axis with the Gargerätegehäuse is firmly connected. "Firmly connected" means that the door hinge can not be moved freely in the corresponding direction.

In a preferred embodiment, at least two connecting elements are present and at least one of them is firmly connected to the first and / or to the second wall.

In particular, at least one other connecting element is not firmly connected to the first and / or the second wall.

Advantageously, a fit of the connecting element and at least one opening for receiving the same a greater game, as a fit of the pin and the wall socket.

Under a fit, for example, a fit according Pass systems to understand DIN 7154 or DIN 7155, relating to a shaft-hub connection. For example, the fit of the pin and the wall bush may be a clearance fit for the user door to be rotatable with little force. The fit of the connecting element and the opening for receiving the connecting element would allow correspondingly even more play.

Furthermore, the first and / or the second wall can be formed in one piece at least between the wall bushing and the diaphragm.

Thus, the wall socket for receiving the pin and a device for attaching the diaphragm can be precisely tolerated to each other, since both are arranged on the same component. Inclinations between the user door and panel can be avoided even more targeted.

Advantageously, the first hinge element in each case has two spaced-apart hinge bushings for receiving the pin.

In this way, the stylus can be more accurately aligned in its axial length direction because the stylus is held in two places simultaneously.

Advantageously, the second hinge element is connected to the pin such that it engages between the two spaced hinge bushes of the first hinge element.

As a result, a stable connection of the second hinge element on the pin can be ensured.

Furthermore, the at least one wall bushing of the first and / or the second wall can be arranged outside the two hinge bushes.

"Outside" here means that along the pin axis, which runs through the two hinge bushings, the wall bushing is not arranged between the two hinge bushes.

Advantageously, the at least one door hinge is arranged on the inside to the first and / or second wall.

"Inside" means on the side of the wall on which the cooking chamber is arranged.

In particular, a cooking chamber collar is arranged on the first wall and / or on the second wall.

The cooking chamber collar is arranged at the front of the cooking chamber and forms that component against which the user door rests in the closed state, directly or for example via a sealing element.

• vor einer Innenfläche der Benutzertüre in geschlossenem Zustand, und/oder
• vor einer Berührungsfläche der Benutzertüre und des Gargerätegehäuses angeordnet ist.

For the arrangement of the wall socket, the first and or the second wall may have at least one tongue. The tongue is arranged and configured such that the tongue is at least partially

• in front of an inner surface of the user door in the closed state, and / or
• is arranged in front of a contact surface of the user door and the Gargerätegehäuses.

The term "before" refers to the normal operating position of the cooking appliance, with the closed user door located at the front of the cooking appliance. The inner surface of the user door is that surface of the user door which faces the cooking chamber.

• Verbinden des mindestens einen Türscharniers mit der ersten und/oder der zweiten Wand durch Einführen des Stifts des Türscharniers in die Wandbuchse der ersten und/oder der zweiten Wand;
• Anbringen der Blende an der ersten und an der zweiten Wand;
• Anbringen der Benutzertüre an dem mindestens einen Türscharnier.

Furthermore, a method for mounting one of the described cooking appliances is to be understood. This method comprises a plurality of assembly steps, which can be performed in any order. These are the following steps:

• Connecting the at least one door hinge with the first and / or the second wall by inserting the pin of the Door hinge in the wall socket of the first and / or the second wall;
• Attaching the panel to the first and second walls;
• Attaching the user door to the at least one door hinge.

• Fixieren des mindestens einen Türscharniers in Richtung der Stiftachse.

Advantageously, the method can also have the following additional assembly step:

• Fix the at least one door hinge in the direction of the pin axis.

The fixation may be e.g. by means of a screw, and in particular the at least one door hinge can be mounted on the first and / or on the second wall.

Advantageously, this additional assembly step is carried out after insertion of the pin of the at least one door hinge into the wall bushing of the first and / or the second wall.

Brief description of the drawings

• Fig. 1a ein Gargerät mit Blick auf die Frontseite mit einer Benutzertüre und einer Blende,
• Fig. 1b ein Gargerät mit Blende und ohne Benutzertüre,
• Fig. 2 eine Wand des Gargeräts,
• Fig. 3a ein Türscharnier in Gesamtansicht,
• Fig. 3b einen Detailausschnitt des Scharniergelenks, und
• Fig. 4 eine Detailansicht des Scharniergelenks in montiertem Zustand.

Further embodiments, advantages and applications of the invention will become apparent from the dependent claims and from the following description with reference to FIGS. Showing:

• Fig. 1a a cooking appliance with a view of the front with a user door and a panel,
• Fig. 1b a cooking appliance with cover and without user door,
• Fig. 2 a wall of the cooking appliance,
• Fig. 3a a door hinge in overall view,
• Fig. 3b a detail of the hinge joint, and
• Fig. 4 a detailed view of the hinge joint in the assembled state.

Way to carry out the invention

The terms "front", "rear", "bottom", "top" etc. refer to the normal operating position of the cooking appliance, in which the closed user door is arranged vertically and at the front of the cooking appliance.

Fig. 1a and 1b show an identical cooking appliance, with in Fig. 1b the user's door is hidden. Fig. 1a and 1b show a cooking appliance with a cooking appliance housing 1. The cooking appliance housing 1 has a first wall 2 and a second wall 3. The first wall 2 and the second wall 3 form side walls of the cooking appliance and are arranged opposite each other. On the front side 4, the cooking appliance has a user door 5 and an aperture 7 with operating elements 8.

The user door 5 is on two sides via a respective door hinge 9 and 10 ( Fig. 1b ) connected to the cooking appliance. The door hinges 9 and 10 are connected via a first hinge element 11 with the first wall 2 and the second wall 3 and a second hinge element 12 with the user door 5. The panel 7 is also connected directly to the first wall 2 and the second wall 3.

In Fig. 2 the first wall 2 is shown in more detail. The first wall 2 has, in the installed position on the front side 4, a tongue 13 on which a wall socket 14 for receiving a pin (17, FIG. Fig. 3a . 3b ) of the door hinge 9 is arranged. On the first wall 2, as well as on the second wall 3, a diaphragm receiving device 15 is provided, on which the diaphragm 7 can be mounted directly.

In Fig. 3a the door hinge 9, 10 is shown with the first hinge element 11 and the second hinge element 12. The cutout A off Fig. 3a is in Fig. 3b enlarged in a detail view.

The first hinge element 11 has two hinge bushings 16, in which the pin 17 is mounted. Between the two hinge bushings 16 engages the second hinge element 12 on the pin 17 a. The first hinge element 11 and the second hinge element 12 are thus rotatably supported by the pin 17 to each other. The pin axis 18 is formed by the longitudinal axis of the pin 17 and points in the Y direction. On the one hand, the pin 17 guides the rotational movement of the user door 5 and, on the other hand, absorbs the load of the user door 5 and the force of movement.

The door hinge is fastened to the cooking appliance housing 1 on the first hinge element 11 in the Y direction via two connecting elements, for example via screws. For this purpose, threads 19 are provided on the first hinge element 11 ( Fig. 3a ).

In Fig. 4 the door hinge 9 is shown in the assembled state. The pin 17 is arranged in the wall socket 14. That is, the pin 17 passes through both the hinge bushings 16 and into or through the wall bushing 14. The wall bushing 14 is arranged outside the two hinge bushes 16. That is, the wall bushing 14 is not located along the pin axis 18 between the hinge bushings 16, but outside of the hinge bushings 16th

In addition, the door hinge is arranged on the inside to the first and / or the second wall or to the tongue. The arrow 22 ( Fig. 4 ), which lies on the pin axis 18, points away from the wall or from the tongue 13 in that area which is arranged on the inside to the wall.

The components described now play together as follows. The aim is to align the front door 4, the user door 5 and the aperture 7 as parallel as possible and accurate to each other. That is, the gap 24 between the user door 5 and the aperture 7 should preferably have the same width over the entire length and be as narrow as possible. Furthermore, at the ends 20 of the gap 24, the user door 5 and the Aperture 7 to be flush and not overlap laterally relative to each other.

In order to ensure the precise relative arrangement of the user door 5 and the panel 7 with minimal installation effort, the two components must be closely tolerated each other.

The relevant tolerance chain in the x and z directions is as follows: aperture 7, aperture receiving device 15, wall socket 14, pin 17, second hinge element 12, user door 5.

Compared to the prior art, this is a shortened tolerance chain, since the first hinge element 11 is not part of the tolerance chain and both the diaphragm receiving device 15 and the wall bushing 14 are part of the same component, namely the first wall 2 or the second wall 3, are. So far, the pin 17 has not been stored directly in the wall bush 14 of the first wall 2, but only in the hinge bushings 16 of the first hinge element 11. The latter was in turn connected to the first wall 2.

In order to keep the tolerance chain short in the manner described, the tongue 13 is arranged with the wall bushing 14 for receiving the pin 17 on the front side 4 of the first wall 2 and the second wall 3. The mutual alignment of the wall bushing 14 and the diaphragm receiving device 15 (dashed double arrow 21 in Fig. 2 ) is narrow to tolerate.

Even if the tolerance chain does not extend over the first hinge element 11, this is attached to the first wall, in particular in the openings 23. Because by the mounting of the pin 17 in the wall bushing 14, only the X and Z positions are defined, but the pin can move freely in the Y direction, ie in the direction of the pin axis 18. For this reason, the first hinge member 11 with the first wall 2, for example, connected by the threads 19 of first hinge member 11 with the openings 23 of the first wall 2 via connecting elements, in particular screws, are connected. The openings 23 in this case have a relatively large clearance, since the door hinge 9 is aligned primarily via the pin 17 on the cooking appliance housing 1, in particular on the first wall 2 or on the second wall 3.

Claims (13)

1. A cooking device, in particular an oven, a microwave device or a steam-cooking appliance, comprising

   - a cooking device casing (1) with a first wall (2) and with a second wall (3) arranged opposite to the first wall (2),

   - a user door (5),

   - a front panel (7),

   - at least one door hinge (9) connecting the user door (5) to the first (2) and/or the second (3) wall and having at least one pin (17), wherein the user door (5) is pivotal about a pin axis of the at least one pin (17),

   wherein the first (2) and the second (3) wall each comprises a wall bearing (14) receiving the at least one pin (17) of the at least one door hinge (9) and wherein the front panel (7) is arranged at the first (2) and at the second (3) wall,
   characterized in that a front panel mounting device (15) is arranged at the first wall (2) and also at the second wall (3), to which the front panel mounting device (15) the front panel (7) can directly be mounted,
   and wherein the front panel mounting device 15 on the one hand and the wall bearing (14) on the other hand form part of the same component, namely of the first wall (2) or the second wall (3).
2. The cooking device of any of the preceding claims, wherein the at least one door hinge (9) has a first hinge element (11) and a second hinge element (12), wherein the first hinge element (11) and the second hinge element (12) are connected to the pin (17) and pivotal with respect to each other about the pin axis, wherein the first hinge element (11) is connected to the cooking device casing (1), in particular to the first (2) and/or to the second (3) wall, and the second (12) hinge element to the user door (5).
3. The cooking device of claim 2, wherein the first hinge element (11) of the at least one door hinge (9) is fixedly connected to the cooking device casing (1), in particular to the first (2) and/or with the second (3) wall, via at least one connecting element, in particular via at least one screw, in the direction of the pin axis,
   in particular wherein there are at least two connecting elements and/or the at least one connecting element is fixedly connected to the first (2) and/or the second (3) wall and/or the at least one connecting element is not fixedly connected to the first (2) and/or the second (3) wall.
4. The cooking device of claim 3, wherein an engineering fit between the at least one connecting element and at least one opening (23) for receiving the at least one connecting element has a bigger clearance than an engineering fit between the at least one pin (17) and the at least one wall bearing (14).
5. The cooking device of any of the preceding claims, wherein the first wall (2) and/or the second wall (3) is/are a single piece at least between the wall bearing (14) and the front panel (7).
6. The cooking device of any of the claims 2 to 5, wherein the first hinge element (11) has at least two hinge bearings (16) spaced apart from each other for receiving the at least one pin (17).
7. The cooking device of claim 6, wherein the second hinge element (12) reaches between the two spaced apart hinge openings (16) of the first hinge element (11) connected to the pin (17).
8. Cooking device of any of the claims 6 or 7, wherein the at least one wall bearing (14) of the first (2) and/or the second (3) wall is arranged outside of the two hinge openings (16).
9. The cooking device of any of the preceding claims, wherein the at least one door hinge (9) is arranged on an inner side of the first (2) and/or second (3) wall.
10. The cooking device of any of the preceding claims, wherein a cooking chamber collar is arranged at the first wall (2) and/or at the second wall (3).
11. The cooking device of any of the preceding claims, wherein the first (2) and/or the second (3) wall has at least one tongue (13) forming the at least one wall bearing (14), wherein the tongue (13) is located at least partly

    - in front of an inner surface of the user door (5) in a closed state, and/or

    - in front of a contact surface of the user door (5) and the cooking device casing (1).
12. A method for assembling a cooking device of any of the preceding claims, comprising the following steps in arbitrary order:

    - connecting the at least one door hinge (9) to the first (2) and/or the second (3) wall by inserting the pin (14) of the door hinge (9) into the wall bearing (17) of the first (2) and/or the second (3) wall,

    - arranging the front panel (7) at the first (2) and at the second (3) wall,

    - arranging the user door (5) at the at least one door hinge (9).
13. The method of claim 12, comprising the step of
    fixating the at least one door hinge (9) in the direction of the pin axis (18),
    in particular with a screw, and/or
    in particular at the first wall (2) and/or at the second wall (3),
    in particular after inserting the pin (17) of the at least one door hinge (9) into the wall bearing (14) of the first (2) and/or the second (3) wall.

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