WO2023194082A1

WO2023194082A1 - Domestic appliance with specific driver system for actuating the door, and method

Info

Publication number: WO2023194082A1
Application number: PCT/EP2023/057032
Authority: WO
Inventors: Maja Wehrle
Original assignee: BSH Hausgeräte GmbH
Priority date: 2022-04-07
Filing date: 2023-03-20
Publication date: 2023-10-12
Also published as: DE102022203508A1

Abstract

One aspect of the invention relates to a domestic appliance (1) comprising a housing (2) and comprising a door (4), which is arranged movably on the housing (2) and, when opened, can be lowered into a stowage space (5) in the housing (2), and comprising a door-opening device (7) by means of which the door (4) is able to move automatically at least along a portion of its movement path between two end positions, wherein the door-opening device (7) has a motor (14) by means of which the door (4) is able to move automatically, wherein the domestic appliance (1) has at least one riser cable (16, 17) which is coupled to the motor (14) and is actuatable by means of the motor (14), wherein the riser cable (16, 17) is coupled to at least one driver (20, 21, 20') of the domestic appliance (1), which can be moved by means of the riser cable (16, 17) in the depth direction (z) of the domestic appliance (1), and wherein the door (4) is coupled to the driver (20, 21, 20') so that, as the driver (20, 21, 20') moves, the door (4) is able to move. The invention also relates to a method.

Description

Household appliance with a specific driver system for operating the door, and method

One aspect of the invention relates to a household appliance with a housing and with a door, which is movably arranged on the housing and can be retracted into a storage space in the housing when opened, and with a door opening device with which the door is at least partially on its path of movement between two end positions is automatically movable, the door opening device having a motor with which the door is automatically movable. Another aspect of the invention relates to a method for moving a door.

Household appliances for preparing food are known from DE 10 2015226 009 A1 and DE 102017207 980 A1. These are cooking devices. Retractable doors are provided there. Furthermore, the door opening devices there are equipped with cable pull devices. These cable pull devices can be used to operate specific components of the household appliance in order to automatically carry out the door movements. In exemplary embodiments, the cable pull devices can also be coupled to a motor in order to be able to effect the cable actuations using a motor. Although ropes are highly flexible, their mechanical stability and the transmission of forces are limited.

It is the object of the present invention to create a household appliance and a method in which a door can be operated safely and in a user-friendly manner.

This task is solved by a household appliance and a method according to the independent claims.

One aspect of the invention relates to a household appliance with a housing and with a door, which is movably arranged on the housing and can be retracted into a storage space in the housing when opened, and with a door opening device with which the door is at least partially on its path of movement, in particular between two end positions, can be moved automatically, the door opening device having a motor has, with which the door can be moved automatically. Another aspect of the invention relates to a method for moving a door.

The household appliance has at least one pitch cable which is coupled to the motor. Moving, in particular shifting, the pitch cable can be carried out using the motor. The pitch cable is also coupled to a driver of the household appliance. This driver can be moved with the pitch cable in the depth direction of the household appliance. The door can also be coupled to the driver so that the door can be moved when the driver moves.

A pitch cable is designed to transmit both compressive forces and tensile forces. This is preferably done linearly in the direction of the longitudinal axis of this pitch cable. A pitch cable thus resembles a flexible rack, which may preferably be contained in a pipe or in a hose. A pitch cable is particularly rigid in the direction of its longitudinal axis.

As a result, it can be provided with a stable length in the direction of its longitudinal axis. Even if tensile or compressive forces are exerted on the pitch cable in the direction of this longitudinal axis, it remains stable in length. Especially when such a pitch cable is laid in a pipe, it can then be moved in this pipe relative to the pipe and transmit the tensile force or pressure force exerted on the pitch cable. This means that an incline cable differs significantly from a rope in terms of its function and possibilities. The rope has a completely different structure compared to an incline cable and is designed differently for its use. A conventional rope does not have the corresponding rigidity of an incline cable.

Preferably, a pitch cable has a helical element at least in sections along its longitudinal axis, which is formed on the outside of an internal cable harness of the pitch cable. This creates a sort of threaded area on the outside of the pitch cable. Through such an embodiment, an incline cable can be moved back and forth as a whole particularly safely and reliably in the direction of its longitudinal axis. Because then it is also possible that, for example, a toothed element that is coupled to a motor can engage radially in this thread-like segment of the pitch cable and through the Actuation of the toothing element a linear movement of the pitch cable can be initiated.

This makes it particularly advantageously possible to provide a driver that is coupled to the pitch cable, in particular directly. This then creates a highly precise possibility of coupling the door with this driver depending on the situation and thus moving the driver by means of the pitch cable, particularly in the event of an automatic actuation of the door with a door opening device, and thus automatically taking the door with it. A highly functional, tolerance-minimized and mechanically very robust principle, especially for the transmission of tensile and compressive forces, is made possible due to the coupling of the pitch cable with the additional driver in order to move the door automatically. This concept also automatically enables permanently robust and low-wear operation of the door with the door opening device.

Because the driver can also be coupled to the door depending on the situation in one exemplary embodiment, a variety of door actuation concepts can be achieved. So there is no inseparable connection created between the driver and the door. Rather, a reversibly producible and therefore non-destructively detachable coupling between the driver and the door is made possible here. This is particularly advantageous because it allows different types of operation for the door. On the one hand, this can be automatic operation by means of the door opening device. On the other hand, this also allows the door to be operated manually by a user themselves. Especially in such a scenario, the door is decoupled from the driver and can be operated independently of the driver. As a result, a user can move the door from the closed end position into an open position, in particular up to the open end position, in particular purely with manually applied force. Returning from the open end position to the closed end position is then also possible manually. The driver provided here is therefore also a central component in order to be able to provide these different movement concepts. The coupling, in particular the direct connection to the pitch cable, also enables a highly precise and extremely direct transmission of the motor movement, in particular the Rotary movement of the motor shaft onto the pitch cable and from there onto the driver.

This creates a very tolerance-minimized and play-reduced movement transmission from the motor shaft to the door.

In one exemplary embodiment, the door with the door opening device can be moved automatically, at least in sections, from a closed end position to an open end position. In addition or instead of this, the door can be automatically moved from an open end position to a closed end position at least in sections using the door opening device. In this context, it is also possible that not the entire movement path from the closed end position to the fully open end position occurs automatically. In one exemplary embodiment, only one movement section of this movement path can take place automatically. For example, a partial path can take place from the completely closed end position to an open intermediate position. This intermediate position can be characterized, for example, by the fact that from this position the further movement of the door up to the open end position is initiated solely by the gravity of the door itself. This means that motor support for automatic door opening is only possible over a partial section. The engine is then less loaded in such an embodiment.

The same can then be done when moving from the open end position to a closed end position. Here too, only a partial path can be provided, which is carried out automatically by the door opening device.

In one exemplary embodiment, as already mentioned above, the door can be moved completely automatically starting from the closed end position up to a threshold tilt position, which represents an open intermediate position. This threshold tilt position is characterized in particular by the fact that from this point onwards, the further movement of the door into the open end position occurs independently solely on the basis of gravity. An additional action through the door opening device by actuating the motor is then not necessary here. The threshold tilt position can be at an angle between 40° and 50°, in particular between 43° and 47°, to the vertical. In one exemplary embodiment, the driver has a U-shaped driver part. This is arranged with the U-opening towards the rear in the depth direction of the household appliance. Furthermore, this driver part has an upper engagement opening when viewed in the height direction. The U-shaped driver part is therefore open at the top. Such a driver with such a specifically shaped driver part is, on the one hand, highly mechanically stable. This means that it can absorb the corresponding forces when it is coupled to the door without being deformed itself. Last but not least, such a specifically shaped driver also makes it possible to carry the door safely. These forces, which are then transferred to the door when the driver moves, do not cause the driver to experience undesirable deformations. In addition, this shape also provides a limit for a counter-driver of the door, which engages in the driver or is coupled to it, in a particularly advantageous and simple manner. This specific U-shape forms a boundary wall towards the front when viewed in the depth direction. This is the bottom leg of the U-shape. This ensures that the counter driver or a coupling part of the door is safely carried along and stops on this boundary wall or stop wall. A lateral boundary is achieved by the lateral U-legs of the U-shape, which in one exemplary embodiment protrude freely towards the rear, so that the engaging counter-driver of the door is also held laterally. This also prevents undesirable lateral movement or slipping of the counter-driver from the driver. In addition, the position of this counter-driver, when it is coupled to the driver and engages in this U-shaped driver part, in particular from above, is also stabilized laterally. This counter-driver of the door is an exemplary embodiment of a coupling part, which can be coupled to the driver depending on the situation in order to move the door accordingly. This coupling part, which in one embodiment can be a counter driver, is coupled to the door. Depending on the situation or depending on the type of operation of the door, it can be coupled to the driver, in particular it can intervene directly in the driver. The driver part is in particular the one which is intended for direct coupling with a coupling part of the door. This also creates a particularly advantageous chain of effects in order to achieve the coupling of the door to the driver, in particular by means of the coupling part, as required and depending on the situation.

In one exemplary embodiment, the driver has a connecting part. The connecting part is designed like a plate. In particular, the connecting part is a bottom of the driver part. It therefore closes the U-shaped driver part at the bottom. This further increases the stability of the driver part.

In particular, this connecting part is designed with two strip webs projecting backwards, which are arranged at a distance from one another in the width direction. The free space formed between the strip webs forms a receiving area for direct coupling to the pitch cable. In one exemplary embodiment, the pitch cable is thus arranged with one end engaging in this free space. This enables a particularly stable and mechanically reliable direct coupling between the pitch cable and the driver. In one exemplary embodiment, it is preferably provided that this end of the pitch cable is firmly and in particular permanently connected to this connecting part of the driver. For example, this end can be arranged in this free space and welded to adjacent areas of the connecting part.

In one exemplary embodiment, the household appliance has at least one guide slot. In this guide slot, the driver is guided in its movement in the depth direction of the household appliance. This is another very advantageous embodiment. This is because the movement transmitted from the pitch cable to the driver then leads to corresponding forces occurring when coupled with the coupling part of the door. In order to maintain the most uniform, linear and continuous movement of this driver in the depth direction, the guide link is advantageous. This means that tipping of the driver is at least significantly reduced, especially when coupling it to the coupling part of the door and then carrying the door along. This prevents the driver from jamming or spreading when moving in the depth direction. In one exemplary embodiment it is provided that the driver has at least one guide web which projects laterally in the width direction and which engages in a guide link. This laterally projecting guide web is preferably formed as a wing web. It is a strip-shaped part. In particular, such a guide web is arranged on an outside of a cantilevered U-side leg of the U-shape of the driver part.

It is particularly advantageous if there are two management backgrounds. In particular, these are arranged on opposite sides of the driver in the width direction. This makes it possible for the driver, viewed in the width direction, to engage on opposite sides in a guide slot, in particular with a guide web projecting laterally. This enables a particularly uniform and linear movement of the driver in the depth direction of the door, especially if there is a coupling with the coupling part of the door and the door is to be taken along with the driver.

In one exemplary embodiment it is provided that a guide link is designed as a slot or groove. This creates a relatively low guideline in the height direction. The guide bar, which is low in height direction, can therefore also intervene in such a guide backdrop with minimal play. This also prevents movement guidance and tilting of the driver, in particular about an axis oriented in the width direction. The guide webs, which are longer in the depth direction compared to the width direction, support this movement guidance to avoid the tilting movement of the driver about a tilting axis oriented in the width direction when the coupling part of the door couples with the driver and the door is carried along with the driver.

In one exemplary embodiment, the household appliance is designed with at least one receiving plate. This separate receiving plate is preferably intended to accommodate the driver. The receiving plate can be a separate part. The receiving plate can be designed like a board. In particular, this component can be formed in one piece from metal. It can be, for example, a milling component. In one embodiment, the receiving plate can have a trough-shaped receiving channel on its top side. The driver is arranged in this receiving channel, which is a recess area that is preferably straight in the depth direction. The boundary walls laterally delimiting this receiving channel in the width direction can have the above-mentioned guide slots. Such a concept supports the guide of the driver in the depth direction as straight as possible in a particularly advantageous manner. As a result, the entire driver, viewed on its own, is arranged in this receiving channel and, in this regard, its movement is already laterally supported and stabilized by the boundary walls of this receiving channel. Since the guide slots are then designed in particular as slots or grooves in these side walls, it is also possible for the guide webs of the driver, which are preferably present, to additionally engage in these guide slots. This enables particularly stable and linear movement guidance in this depth direction.

In one embodiment it can be provided that the pitch cable is arranged in a separate guide tube. The guide tube can be dimensionally stable or dimensionally stable. It can be, for example, a metal pipe.

It is possible that in one embodiment the receiving plate has at least one laying channel or a laying channel in which this guide tube is arranged. As a result, this guide tube can also be laid in a stable position, in particular in a fixed position. The laying channel can be designed to be open at the top.

In one embodiment, the household appliance can have a cover element. This cover element can, for example, cover wing-like guide webs of the driver from above. It is possible that these wing-like guide webs rest directly on an underside of this cover and the further driver is exposed upwards between two opposite covers. This makes guidance stabilization possible through these simple cover elements, which can be plate-like strips, for example. This also prevents the driver from tilting about an axis oriented in the width direction, for example, if corresponding forces occur during coupling with the coupling part. This is a very simple concept, which is possible in addition to or as an alternative to the recording plate as explained above.

In one exemplary embodiment, two drivers are provided opposite each other in the width direction of the door, so that the door can be coupled in particular by means of two coupling parts, each with a driver. In particular, at least two separate pitch cables are then provided, each of which is coupled at the end to one of the drivers. The other end of these pitch cables is coupled to the motor. In particular, it is provided that the motor drives a toothed element, in particular a gear. This gear is coupled to the two pitch cables. By driving the gear, the two pitch cables can then be operated simultaneously. A tensile force can then be exerted on them at the same time, so that the drivers can be pulled backwards in the depth direction. If this toothed element is rotated in the other direction by the motor, the two pitch cables are pushed forward at the same time, so that the drivers can be pushed forward again in the depth direction.

In one exemplary embodiment, the household appliance has a coupling rod oriented in the width direction along its longitudinal axis. This is linked to the door. The coupling rod is mounted in particular movable in the depth direction of the household appliance. A coupling part is arranged on this coupling rod, which is provided and arranged for a separate driver.

This coupling part is in particular fixed in place on the coupling rod. In particular, it is arranged to protrude downwards in a cantilevered manner from the coupling rod in the height direction. Such an exposed arrangement enables particularly safe and easy coupling with the driver. This makes it possible to very easily engage this coupling part from above into the particularly U-shaped driver part with the engagement opening that is open at the top.

In one exemplary embodiment, it can be provided that only such drivers, in particular two such drivers, are present, by means of which at least one coupling part can directly couple to the coupling rod. In particular, in one exemplary embodiment it is provided that the Door opening device only allows the door to open automatically. In particular, in one exemplary embodiment it is provided that only the door can be opened automatically from the closed end position to an open intermediate position, in particular the gravity tilt position. The further movement path towards the fully opened end position is then carried out by gravity. In this exemplary embodiment, if there are only two such drivers, in particular if they have the above-mentioned advantageous shape, the door can then be closed manually by a user, in particular only made possible manually by a user. However, the drivers can be moved back from the driver position moved backwards back to the front basic position automatically by the door opening device.

The door is preferably directly connected to a door connection unit. The door connection unit is connected to the coupling rod in a fixed, movement-coupled manner.

In one embodiment, the driver is an opening driver. With this an opening movement of the door can be carried out. In particular, only one opening movement can be carried out.

In one exemplary embodiment, the household appliance has at least one further driver. This is a locking driver. With this a closing movement of the door can be carried out. In an advantageous exemplary embodiment, a driver system is created with at least two drivers, in particular acting in different orientations in the depth direction. In particular, in such a system, the driver and the further driver are arranged one behind the other in the depth direction and are arranged at the same width position in the width direction. One of the two allows the door to be taken along when it is opened. In particular, this one driver only allows the door to be taken along on its opening path. The different and separate driver enables the door to be taken along when the door closes. In particular, this locking driver is intended to enable it to be driven only during the closing movement. In an advantageous exemplary embodiment, the closing driver is designed in the same way as the opening driver. For this purpose, an advantageous exemplary embodiment can be designed as already explained above for the driver. In this regard, too, a U-shaped driver part can be provided on the locking driver. The guide webs and the connecting part can also be provided. Likewise, the locking driver can be guided in at least one guide slot, in particular in two guide slots, with corresponding guide webs. In particular, the locking driver is arranged such that its U-shaped driver part is oriented forward in one embodiment with the U-opening. In particular, this U-opening faces the driver, in particular the opening driver. This makes it possible for the coupling part of the door to again engage from above into the engagement opening which is open at the top, to strike against the stop wall which is then positioned at the rear in the depth direction and which is formed by the bottom leg of the U-shape, and in this context then at the Movement of the locking driver in the depth direction forward, the door is carried along and is at least partially closed automatically in the movement path of the closing path.

In one exemplary embodiment it is provided that the further driver, in particular the closing driver, is also coupled to the pitch cable, in particular is coupled directly. In particular, it is provided that in such an embodiment a driver and a further driver are arranged on a common pitch cable. In particular, these two drivers are then each arranged in a stationary manner on the respective pitch cable. This also means in particular that the distance between these two drivers is the same or remains the same when viewed along the pitch cable. Thus, when the pitch cable moves backwards in the depth direction, in which the front driver in the depth direction, which is in particular an opening driver, is moved backwards, there is also a corresponding movement of the further driver positioned further back in the depth direction.

However, it is also possible that the driver, which forms the opening driver, is directly connected to a first pitch cable and the further driver is not coupled to this pitch cable. In one exemplary embodiment, the further driver can then be coupled to a further pitch cable. That's it then also allows these two drivers to be moved independently of each other in the depth direction with the respective pitch cables. This can be accomplished by a motor. However, it is also possible for the household appliance to have two separate motors. In this context, one of the two motors can be used to actuate the pitch cable, with which the driver can be moved in the depth direction. The other motor can then be coupled to the pitch cable or be provided for driving the pitch cable, on which the further driver, in particular the closing driver, is arranged. Such a concept makes it possible for only the driver with its coupled pitch cable to be moved backwards during an opening process and to take the door with it.

It is possible when the partial path over which the door is to be opened automatically has been covered, and the door moves into the fully open position due to its gravity. In this context, the driver, which has already been decoupled from the coupling part, with its coupled pitch cable can then be automatically moved back into the front basic position via the motor drive. If the door is then to be closed again starting from the fully open end position, it can be automatically moved forward with the further driver arranged further back in the depth direction, which then forms a closing driver. This additional driver is moved forward in the depth direction. With this concept mentioned, this can then be done independently of the front driver, which represents the opening driver.

In particular, if the closing movement can only take place automatically over a partial path, decoupling can then take place again between the further driver and the coupling part of the door when the end of this partial path is reached. The door can then be closed, for example, manually and/or by appropriately designing the hinges, which can then independently push the door closed. In this context, it is also possible for the additional driver, which has partially moved forward, to be automatically brought back into its rear basic position. In one exemplary embodiment it is provided that two drivers and two further drivers are arranged. These are arranged in pairs on opposite sides in the width direction. As a result, the door can be contacted at two opposite locations during an opening movement and opened evenly, and in particular can then be moved evenly into the storage space. In a corresponding manner, it is advantageous if two further drivers are arranged at two opposite locations during the automatic at least partial opening of the door.

In this context, it can then be provided that each of the drivers is coupled to its own pitch cable and the pitch cables can be driven by a motor. In particular, these two pitch cables, which are coupled to the two drivers, are actuated simultaneously by the motor.

In one exemplary embodiment, the two further drivers can also each be coupled to a further separate pitch cable. These can then also be operated by motor at the same time. Thus, in one embodiment, there may be four separate pitch cables.

However, it is also possible for one driver and another driver to be connected to a common pitch cable, so that in such an embodiment there are only two pitch cables. A driver and another driver are arranged on each of them or are directly coupled to them.

In one exemplary embodiment, the household appliance has at least one additional driver that is separate from the driver and arranged to be movable in the depth direction. This can be coupled with a driver and/or the door. Such additional drivers also enable independent movement of the driver. This means that a driver and an additional driver can be moved independently of each other in the depth direction. In an advantageous exemplary embodiment, this enables a further concept for at least partially automatically carrying out a closing movement of the door and/or an at least partially automated opening movement of the door. In one embodiment, this additional driver is decoupled from the pitch cable to which the driver is coupled. In particular, an additional driver can be moved forwards and backwards, in particular linearly, in the depth direction with a guide device that is separate from the pitch cable.

With such a concept, a driver-additional driver system can be created. This can be realized on its own, in particular, for example, without an additional driver mentioned above. However, it is also possible for at least one additional driver to be present in addition to the driver system. A concept can then be implemented in which a front driver, a further rear driver and at least one additional driver separate from them, in particular two separate additional drivers, are implemented, particularly when viewed in the linear depth direction. Then, in particular, there is a concept in which there is a driver in line with one another in the depth direction as the front first driver, a front, separate first additional driver, a rear second additional driver following to the rear and, in turn, a further rear driver following to the rear. This concept can then be duplicated in an embodiment. This means that these four driver elements are preferably present on opposite sides in the width direction, in particular symmetrically to a central axis.

The additional drivers, which can also be referred to as free drivers, form a system with which they can be moved back and forth in a linear guide. This can also be done independently of each other, so that one of these two additional drivers can be moved in the depth direction independently of the other. It is therefore possible that these two additional drivers, if they are present, can also be moved towards one another or away from one another, this occurring linearly in the depth direction. With this concept, in which the additional drivers are also present, automatic closing and opening of the door is possible at least over a partial path. In contrast to the above-mentioned concept with a driver and another driver positioned linearly behind it in the depth direction, the concept with the additional drivers provides that these are to be coupled directly to the coupling part, in particular the coupling parts, of the door. She therefore represent in particular an intermediate component between the coupling part of the door and a driver or another driver.

In an advantageous exemplary embodiment, it is possible for the door to be operated manually by a user particularly easily, particularly in the concept with additional drivers. In particular, the manual actuation of the door, viewed in the depth direction, takes place between a front additional driver and a rear additional driver. In particular, if there is no operating command for at least partially automatic opening or partially automatic closing of the door, the driver, which is coupled to the pitch cable, remains in its basic position. This particularly affects at least the front driver, which enables the door to be opened automatically. Regardless of the drivers that can only be moved with the automatic mechanism of the door and in particular the additional driver, the door can then be moved back and forth between the two additional drivers arranged in a row one behind the other when operated manually, viewed in the depth direction.

On the other hand, if, for example, due to an automatic opening or automatic closing of the door, the respective additional driver has been taken along by the driver or the further driver and is not in its front basic position or starting position or in its rear basic position or starting position, then it can be provided in an exemplary embodiment be that by moving the door, which can then be either manual or automatic, this additional driver can be pushed into its starting position.

This then also makes it possible, regardless of where an additional driver is currently arranged in its position, in particular outside of its front or rear starting position, to be taken along again when a driver and/or another driver is automatically actuated and thus moved can be automatically returned to its starting position.

Another aspect of the invention relates to a method for moving a door of a household appliance. The household appliance is in particular according to the above Aspect or an advantageous embodiment thereof. The procedure has the following steps:

Actuating the door according to a first type of actuation, for which purpose a motor actuates an incline cable and, by actuating it, a driver is moved in the depth direction of the household appliance and the driver is coupled to the door, so that the door is moved along with the movement of the driver.

Advantageous embodiments of the household appliance are to be viewed as advantageous embodiments of the method. The components of the household appliance alone or in at least partial combination enable the respective process steps to be carried out in this context. In particular, the respective active connection of individual components enables the respective process steps to be carried out in this context.

The information “top”, “bottom”, “front”, “rear”, “horizontal”, “vertical”, “depth direction”, “width direction”, “height direction” refers to the intended use and positioning of the door and the household appliance given positions and orientations.

Further features of the invention emerge from the claims, the figures and the description of the figures. The features and feature combinations mentioned above in the description, as well as the features and feature combinations mentioned below in the description of the figures and/or shown in the figures alone, can be used not only in the combination specified in each case, but also in other combinations or on their own, without the frame of the invention. Embodiments that are not explicitly shown and explained in the figures, but which emerge from the explained embodiments and can be generated by separate combinations of features are therefore also to be regarded as included and disclosed by the invention. Versions and combinations of features are also to be regarded as disclosed, which therefore do not have all the features of an originally formulated independent claim.

Exemplary embodiments of the invention are explained in more detail below using schematic drawings. Show it: 1 shows a schematic representation of an exemplary embodiment of a household appliance according to the invention;

2 shows a perspective view of partial components of a door opening device of the household appliance according to a first exemplary embodiment;

3 shows a perspective view of components of a door opening device of a household appliance according to a further exemplary embodiment;

Fig. 4 is a perspective view of an exemplary embodiment of a driver;

Fig. 5 is a perspective view of a partial area in Fig. 2;

6 shows a perspective view of components of a household appliance according to a further exemplary embodiment;

7 shows a schematic top view of a further exemplary embodiment of a door opening device for a household appliance according to a further exemplary embodiment of the invention; and

Fig. 8 is a schematic representation of operating states of the system according to Fig. 7.

In the figures, identical or functionally identical elements are given the same reference numerals.

In Fig. 1, a household appliance 1 is shown in a perspective, simplified representation. The household appliance 1 can be designed, for example, to prepare food. In particular, the household appliance 1 can be a cooking appliance. In this regard, the household appliance 1 can be an oven or steamer or a microwave oven. The household appliance 1 has a housing 2. By At least one receiving space 3 is formed in the housing 2. The recording room 3 is intended here to accommodate food. The receiving space 3 can be, for example, a cooking space in a household appliance 1 designed, for example, as a cooking appliance. It is then limited in particular by a muffle of the household appliance 1. The household appliance 1 also has a door 4. This is movably arranged on the housing 2. It is intended here for closing the receiving space 3 at the front. In one exemplary embodiment, the household appliance 1 has a storage space 5. This is arranged below the receiving space 3 in the height direction (y direction) of the household appliance 1. The storage space 5 is also designed to be separate from the receiving space 3. The storage space 5 is intended to be able to move the door 4 into this storage space 5 when it is opened. This means that the door 4 is a folding door that can only be pivoted about a fixed pivot axis, particularly oriented in the width direction (x-direction) of the household appliance 1. Rather, this means that the door 4 is a retractable door. In the fully opened end position, it is then retracted into the storage space 5 by at least 70%, in particular at least 80%, in particular at least 90%.

In one exemplary embodiment, the door 4 can have a handle 6.

In the household appliance 1 shown in the example, it is preferably provided that the door 4 can be moved in a motor-driven manner at least in some areas by a door opening device 7. The door opening device 7 is shown only symbolically in FIG. 1, so that neither its design nor its position should be understood as limiting in any way. In one exemplary embodiment, the door opening device 7 is designed to move the door 4 along its entire movement path from the closed end position to the fully open end position automatically and thus in particular in a motor-driven manner. In one exemplary embodiment, it is also possible for the entire movement path between the completely open end position of the door 4 and the completely closed end position of the door 4 to be carried out automatically by the door opening device 7 in addition to or instead of this. In addition, however, in one exemplary embodiment it is also provided that the door 4 can alternatively be operated manually by a user. Thus, the household appliance 1 is intended in particular so that the door 4 can be operated either completely automatically or manually on at least a portion, but in particular also completely, by a user. The opening and closing process is then also carried out by the user's manual force, so that the opening and closing also takes place through this force.

In Fig. 2, an arrangement of partial components of an exemplary embodiment of a household appliance 1 is shown in a perspective view. The household appliance 1 has hinges, not shown here. The door 4 can also be pivoted using these hinges. In addition, the household appliance 1 has a base assembly 8. This floor assembly 8 also has the storage space 5 already mentioned.

An exemplary embodiment of components of a door opening device 7 is shown in a perspective view in FIG. In one exemplary embodiment, these components can be arranged in the floor assembly 8. In particular, they are also positioned in the storage space 5. The floor assembly 8 can have a floor plate 9 or a floor. Side walls 10, 11 and a rear wall 12 are connected to the floor 9 in one exemplary embodiment.

For example, these components mentioned can be formed in one piece from metal.

This creates a special base plate 13. In particular, this base plate 13 makes it possible to enlarge the installation space provided in the height direction (y direction), in particular also of the storage space 5, compared to conventional devices. In particular, this specific base plate 13 increases this installation space in the height direction by a maximum of 20 mm, in particular between 14 mm and 18 mm.

In particular, the household appliance 1 has a height that is between 585 mm and 600 mm, in particular between 590 mm and 595 mm, in particular between 592 mm and 594 mm. In particular, the height is measured starting from the floor 9 up to an upper end of the household appliance 1. This applies in particular to a cooking appliance, such as an oven or a microwave oven steamer. Such a cooking device is higher than conventional devices. It is then also possible for a built-in appliance, such as a built-in cooking appliance that can be installed in a niche in a furniture wall, for the floor of the cooking appliance to replace the furniture floor of the niche. Such a furniture base is then unnecessary.

In particular, the device 1 can then be attached with the side walls 10, 11, for example, to the vertical furniture side walls that delimit the niche. For example, screw connections can be provided here. The side walls 10 and 11 can be metal webs, for example. They can be formed as angle parts on the base 9.

The door opening device 7 has at least one motor 14. In particular, the motor 14 is arranged in the rear region of the floor assembly 8 in the depth direction (z direction). The motor 14 has a motor shaft 15. At least one tooth element 15a is coupled to this. The toothed element 15a can be a gear, for example.

The door opening device 7 has a first pitch cable 16 in the exemplary embodiment shown. In particular, in a further exemplary embodiment, it also has an additional pitch cable 17. The two pitch cables 16 and 17 are each guided in a guide tube 18 and 19. The pitch cables 16 and 17 are coupled, particularly at rear ends, to the toothed element 15a. In particular, the rear ends of these pitch cables 16 and 17 preferably have helical elements on their outer sides, so that the toothing element 15a can engage in these helical elements and thereby the corresponding movement, namely pulling or pushing, can be exerted on the pitch cables 16 and 17.

Another, particularly here front end 16a of the pitch cable 16 is connected to a driver 20. The driver 20, which is separate from the pitch cable 16, is firmly connected to this end 16a. For example, a welded connection can be provided here.

In the exemplary embodiment, two drivers 20 and 21 are present. The driver 21 is directly connected to the further pitch cable 17. The two drivers 20 and 21 are shown in FIG. 2 in their frontmost basic position in the depth direction (z direction). Starting from this basic position or starting position, they can be moved backwards in the depth direction using the two pitch cables 16 and 17. In particular, a linear movement is provided in this regard.

In the exemplary embodiment shown here, a system of the door opening device 7 is provided, in which only an automatic opening movement of the door 4 can be carried out with the two drivers 20 and 21 in particular. In particular, it is provided here that this automatic movement only takes place over a partial path of the entire opening movement, which ranges from a closed end position to a completely open end position. In particular, in this example it is provided that a partial path is automatically guided starting from the closed end position up to a threshold tilt position. In particular, this threshold tilt position is the one from which the further opening movement up to the fully opened end position takes place due to the gravity of the door 4 itself.

By way of example, a displacement position 22 of the driver 20 that is different from the starting position is shown symbolically in FIG. This shows that a linear displacement movement in the depth direction backwards can be carried out starting from the basic position shown.

The same is then also possible with the driver 21. By means of the pitch cables 16 and 17, the drivers 20 and 21 can then be returned from a rear position in the depth direction to the basic position shown in FIG.

In the exemplary embodiment shown, the household appliance has a receiving plate 23. In the exemplary embodiment, this is designed in such a way that it is designed as an elongated bar or board-like. In the exemplary embodiment, it extends over at least 80 percent, in particular at least 90 percent, of the size of the base plate 13, in particular the bottom 9, formed in the depth direction. In one exemplary embodiment, it can be a milling component. As can be seen, a guide channel 24 is formed in a front region of this receiving plate 23 in the depth direction. This trough-like guide channel 24, which is oriented in a straight line and in the depth direction with its longitudinal axis, is intended to accommodate the driver 20. The driver 20 is therefore guided in this guide channel 24. As can be seen, in one exemplary embodiment, this guide channel 24 extends in the depth direction over a length which corresponds to the length over which the driver 20 must be moved, in particular in order to move the door from the closed end position to the open intermediate position in which the threshold value -tilt position is reached, pull along.

It is also possible that this guide channel 24 is longer in the depth direction. A further movement of the driver 20 in this regard is then also possible, so that the door 4 can also be automatically moved over a larger partial path, possibly also over the entire movement path, from the closed end position to the open end position.

In addition, it is provided that in the exemplary embodiment shown here, the receiving plate 23 also has a laying channel 25. The pitch cable 16, in particular with the surrounding guide tube 18, is arranged embedded in this laying channel 25, which is open at the top. This guide tube 18 is also additionally fixed in this installation channel 25 by fastening parts 26 and 27.

A further receiving plate 28 is designed in a corresponding manner, in which the guide tube 19 and the driver 21 are arranged.

The exemplary embodiments explained for the receiving plate 23 also apply in particular to the receiving plate 28.

The receiving plate 23 can be held on the floor, for example, by holding elements 29 and/or 30. A side part 54 shown in FIG. 6 can be held by holding elements 31 and/or 32 and/or 33. These holding elements 29 to 33 are preferably bending tabs which are produced from the base 9 by appropriate shaping.

A further exemplary embodiment of the components in FIG. 2 is shown in FIG. 3.

In particular, in this exemplary embodiment it is provided that

Mounting plates 23 and 28 are shorter. In particular here are the guide channels 24 trained, but the laying channels 25 are no longer provided. The guide tubes 18 and 19 are exposed here around the circumference and are only guided and held accordingly in other locally limited places. In Fig. 3, the two rearwardly shifted positions of the drivers 20 and 21 are also shown symbolically. The representation in Fig. 3 is therefore not to be understood as meaning that two such identical drivers 20 and 21 are provided immediately one behind the other. Rather, it symbolizes that only one driver 20 and 21 can be linearly displaced in this depth direction.

An exemplary embodiment of a driver 20 is shown in FIG. The driver 20 has a U-shaped driver part 34.

The driver part 34 is oriented backwards with a U-opening 35 when viewed in the depth direction. The driver part 34 is therefore open to the rear. The driver part 34 has a front and upwardly oriented stop wall 36. This is formed by the bottom leg of the U-shape. Opposite in the width direction, U-side legs 37 and 38 which cantilever to the rear are formed. The driver part 34 is provided with an engagement opening 39 in the upward height direction. As intended, a coupling part of the door 4 protrudes from above through this engagement opening 39 in order to be able to be coupled to the driver 20. This is provided for in one possible exemplary embodiment. In this case, direct intervention and direct coupling of this coupling part with the driver 20 is then provided.

In addition, the driver 20 has a connecting part 40. In the exemplary embodiment, this also forms the bottom of the driver part 34, so that the U-shape is closed at the bottom. Preferably, this connecting part 40 projects backwards beyond the U-shape. In one exemplary embodiment, this connecting part 40 has webs 41 and 42 which are oriented parallel to one another. A free space 43 is formed between these webs 41 and 42. In one exemplary embodiment, the end 16a of the pitch cable 16 engages in this free space 43. In particular, this end 16a is then firmly connected, in particular welded, to the adjacent areas of this connecting part 40. In one exemplary embodiment, guide webs 44 and 45 are formed in particular on the outer sides of the U-side legs 37 and 38. These are positioned to the side in the width direction. They are formed in particular as strip elements. They preferably have a length which, measured in the depth direction, is essentially the length of the cantilevered U-side legs 37 and 38. These horizontally oriented guide webs 44 and 45 are intended in particular to engage in a respective guide link.

Such a guide link 46 is shown in an exemplary embodiment in FIG. Such a guide link 46 can be formed, for example, as a slot or groove in a vertical boundary wall that delimits the guide channel 24. The width of the guide link 46 measured in the height direction is smaller in this regard than the height of the boundary wall 47 measured in the height direction. As can be seen in FIG. 5, in which an enlarged partial section of the illustration in FIG. 2 is shown, the guide web 44 engages this leadership backdrop 46. In addition, in one exemplary embodiment, a further guide link 48 is formed. This is formed in an opposite boundary wall 49, which delimits the guide channel 24 on the other side. The preferably existing guide web 45 engages in this further guide channel 48. Here too, the displacement position moved backwards and the front basic position of the driver 20 are shown as examples.

In addition, an alternative exemplary embodiment is shown in FIG. 5 by way of example in comparison to the shape of the driver 20, which is represented by the driver 20′. This is also shown in an intermediate position that is shifted backwards compared to the basic position. In this exemplary embodiment, the rear end of the pitch cable 16 is covered from above by another part of this driver 20 '. In addition, the webs 44 and 45 are formed into a U-web that runs around the U-shaped driver part 34.

In Fig. 6, the base assembly 8 is shown in a partial perspective view of the household appliance 1. In particular, the example according to FIG. 3 is shown here. In addition, a coupling rod 50 is also shown here. The coupling rod 50 has at least one coupling part 51. This is fixed in place on the coupling rod 50. The Coupling part 51 is in particular a counter driver. Starting from the coupling rod 50, it is oriented downwards in the height direction and is cantilevered in this respect. In Fig. 6, the coupled state between the coupling part 51 and the driver 20 is shown. In this context, the coupling part 51 engages into the driver part 34 from above via the engagement opening 39. In particular, an overlap in the height direction is formed here between the coupling part 51 and the stop wall 36. The same is provided on the opposite side in an exemplary embodiment with the driver 21 and a further coupling part, which is also arranged on the coupling rod 50. The coupling rod 50 is connected in a stationary manner to a door connection unit 52. The door 4, in particular its door leaf, is connected to this door connection unit 52, which is also designed redundantly opposite one another.

The coupling rod 50 is guided in a guide track 53. The guide track 53 is formed in a side part 54. The side part 54 is placed in particular on the base plate 13, in particular connected to it, and delimits the storage space 5 laterally. Another such side part or a side wall with a corresponding guide track is also formed on the opposite side, so that the other end of the coupling rod 50 is also guided accordingly.

If, starting from the coupling position shown in FIG. 6, the driver 20 is pulled backwards from its basic position by the pitch cable 16, the coupling rod 50 is also guided backwards in the guide track 53 via the coupling with the coupling part 51. As a result, the door 4 with its plate-like door leaf is opened from the closed end position via the axis of rotation, in particular at least automatically up to the threshold tilt position.

In a further exemplary embodiment, it is also possible for the door opening device 7 to have a driver 20, as shown by way of example in a sketchy top view in FIG. 7. In addition, the door opening device 7 can have a further driver 55. This is positioned in the width direction in practically the same position as the driver 20. It can be provided that the driver 20 and the further driver 55 are attached to the common pitch cable 16. In particular, they are thereby arranged at a fixed distance from one another. The same can be provided on the opposite side. A driver 21 and another driver 56 can be provided here. These can be firmly connected to the pitch cable 17. Such a system of the door opening device 7 also enables automatic closing, in particular at least over a partial path of the entire movement path between a completely open end position and a closed end position of the door 4.

With such a concept, when the door 4 is opened automatically, the front driver 20 and the other front driver 21 are pushed backwards. Due to the fixed arrangement on the common pitch cables 16 and 17, the rear additional drivers 55 and 56 are also pushed backwards, in particular in one exemplary embodiment along the bends that are also possible here, as shown schematically in Fig. 7.

In this context, it is also possible for the pitch cables 16 and 17 to be moved forward again when the open end position is reached. This can be done until the additional rear drivers 55 and 56 are adjacent to the coupling parts of the door 4 or the coupling rod 50 or are already arranged adjacent to them. If an automatic closing of the door 4 is subsequently desired, these additional drivers 55 and 56 can be pushed forward again with the coupling parts of the door 4 that are to be coupled or have already been coupled, so that this automation works at least over part of the closing path.

In another exemplary embodiment, it is possible that the drivers 20 and 21, which relate to the drivers at the front in the depth direction, are each connected to a pitch cable 16 and 17. It is possible that the additional drivers 55 and 56, which are preferably present, are then coupled to two additional pitch cables of their own. This means that there are four separate pitch cables. This also makes a relative movement between the driver 20 and the further driver 55 possible. Likewise, a relative movement between the driver 21 and the further driver 56 is then possible. As a result, the automatic opening and closing can be carried out over at least a partial path through the corresponding drivers 20 and 21 on the one hand or the other drivers 55 and 56 on the other hand, without the other drivers automatically being forcibly carried along.

In particular, in such an exemplary embodiment it can be provided that one motor 14 is designed with two different gears, which then engage or mesh with only two pitch cables. It is also possible for two motors 14 to be present, of which one motor 14 drives the two pitch cables 16 and 17 and the other motor drives the other two separate pitch cables, to which in particular the further drivers 55 and 56 are connected.

In particular, in one exemplary embodiment, the additional drivers 55 and 56 which are preferably present are designed to correspond to the drivers 20 and 21. In this context, they can also be designed as shown in FIG. 4. However, they are only rotated by 180° in this regard, so that the U-opening 35 in the other drivers 55 and 56 is then oriented forward in the depth direction.

In a further exemplary embodiment it is provided that in addition to drivers 20 and 21 and in particular to other drivers 55 and 56 that are also present, one or more additional drivers are present. These additional drivers 57, 58, 59 and 60 are separate drivers from the drivers 20 and 21 and from the additional drivers 55 and 56 that are preferably present. They are preferably not coupled to the pitch cables 16 and 17. This allows you to move linearly in the depth direction independently of the drivers 20 and 21 and the other drivers 55 and 56. They can also each move independently of each other. This means that the system of additional drivers 58 and 59 allows them to be moved independently and relative to one another. The same applies in particular to the system of additional drivers 57 and 60.

In particular, it is not only possible in this exemplary embodiment that, in addition to a first type of actuation, which includes an at least partially automatic movement of the door 4 along the movement path, a completely manual movement of the door 4 by a user is possible. This allows, for example, at least the movement path from the completely closed end position to the completely Open end position can be done purely manually by a user. In addition to or instead of this, the movement from the completely open position to the completely closed end position can then be carried out purely manually.

8 shows a side view of partial components of the door opening device 7 in a schematic representation. The upper position I represents an exemplary embodiment in which the driver 20 and in particular also the further driver 55 are preferably present. The driver 20 is shown here in its frontmost basic position. The two additional drivers 58 and 59 that are preferably present are also arranged here in their front and rear basic positions. In the exemplary embodiment, this means that they are arranged adjacent to the driver 20 on the one hand and the other driver 55. The additional drivers 58 and 59 are preferably also angle elements, in particular U-shaped, in one exemplary embodiment. The front additional driver 58 can be open to the rear, so that the coupling part 51 can engage from above and from behind. The further additional driver 59 can be open upwards and forwards in this regard.

If, for example, a manual opening of the door 4 is carried out starting from the initial situation shown in FIG 51 on the other side between the additional mint takers 57 and 60.

The movement of the drivers 20 and the additional drivers 55 as well as the additional drivers 58 and 59 is therefore not possible or they remain in their positions shown.

However, if the door 4 is opened automatically starting from the initial situation shown in position I, the driver 20 is pulled backwards with the pitch cable 16. As a result, the additional driver 58 coupled here in particular is also pulled backwards and the coupling part 51, which is then directly coupled to the additional driver 58, is guided backwards (see position II). Since the additional drivers 58 and 59 in their movement are decoupled, the rear additional driver 59 remains in its starting position. However, since the driver 20 and the further driver 55 are each firmly connected to the pitch cable 16, the further driver 55 is also moved backwards during this actuation. It is therefore no longer shown on the left side in the illustration according to position II.

In the state according to position II, the threshold tilt position is then reached, for example. In one exemplary embodiment, this can be achieved when the pitch cable 16 has been moved backwards from the state in position I over a distance between 50 mm and 55 mm, in particular between 52 mm and 53 mm. Starting from this state in position II, it is then provided in one exemplary embodiment that the door 4 moves exclusively by gravity on its further path of movement in the fully opened end position. In the state according to position III in FIG. 8, the situation is already shown in which the open end position has been reached. In this context, the coupling part 51 has then reached the rear additional driver 59 in particular.

It is then possible in one exemplary embodiment for the driver 20 with the pitch cable 16 to be moved forward again into its basic position according to a position IV. This is then such that the additional driver 55, which is again also guided forward, is also brought into its starting position, as it already had in the state in position I. In particular, in this starting position, the further driver 55 is adjacent to or already coupled to the rear additional driver 59.

If the door 4 is then to be closed automatically, at least partially, starting from the state in position IV, the pitch cable 16 is then moved forward. As a result, the additional driver 55 is pushed forward, whereby the rear additional driver 59 coupled to it is also pushed forward. This means that the coupling part 51 is also pushed forward and the door 4 is automatically closed at least partially. As can be seen in the state according to position V, when the pitch cable 16 is pushed forward, the front driver 20 is also moved forward and is therefore in position V in the schematic representation of FIG.

8 can no longer be recognized. In the sketchy top view in Fig. 7 it can be seen that the pitch cable 16 can also be guided around the corner in the front area and then runs in the width direction. This means that the driver 20, which moves forward, can be redirected in this state and moves with the pitch cable 16 in the width direction.

During this automatic closing, the coupling part 51 then reaches the front additional driver 58, which is still positioned there, at a corresponding position. This will then, as shown in the state according to position VI in FIG. 8, also when the pitch cable 16 moves further forward taken along, so that it then reaches its starting position shown in position I, namely its front basic position.

In the subsequent state according to position VII, the pitch cable 16 can then preferably be automatically retracted again in this closed final state of the door 4. As a result, the drivers 20 and the additional driver 55, which is preferably present, in turn reach their starting positions or their basic positions, as they were in the state according to position I.

If, for example, the door 4 is opened manually again starting from the state according to position VII in FIG. 8, the rear additional driver 59 is pushed back again with the coupling part 51 until it reaches the rear end position shown in the state according to position II has reached. On the other hand, if an automatic opening of the door is desired starting from the state according to position VII in FIG.

The scenarios explained in FIG. Preferably, a total travel path measured in the depth direction is between 400 mm and 440 mm, in particular between 410 mm and 430 mm, in particular between 425 mm and 430 mm. In particular, this concerns the movement path of the pitch cable 16 or the pitch cable 17.

Reference symbol list

1 household appliance

2 housings

3 recording room

4 door

5 storage space

6 handle

7 door opening device

8 floor assembly

9 base plate

10 sidewall

11 side wall

12 back wall

13 base plate

14 engine

15 motor shaft

15a tooth element

16 pitch cables

16a front end

17 pitch cables

18 guide tube

19 guide tube

20 takeaways

20' takeaway

21 takers

22 displacement position

23 recording plate

24 guide channel

25 laying channel

26 fastening part

27 fastening part 28 recording plate

29 holding element

30 holding element

31 holding element

32 holding element

33 holding element

34 driver part

35 U opening

36 notice wall

37 U side legs

38 U side legs

39 access opening

40 connecting part

41 jetty

42 jetty

43 Free space

44 guide bridge

45 guide bridge

46 Leadership backdrop

47 boundary wall

48 Leadership backdrop

49 boundary wall

50 coupling rod

51 coupling part

52 door connection unit

53 guideway

54 side panel

55 takeaways

56 takers

57 additional drivers

58 additional drivers

59 additional drivers

60 additional drivers x width direction 5 y height direction z depth direction

Claims

Patent claims

1 . Household appliance (1) with a housing (2) and with a door (4), which is movably arranged on the housing (2) and can be retracted into a storage space (5) in the housing (2) when opened, and with a door opening device ( 7) with which the door (4) can be automatically moved at least in some areas along its path of movement between two end positions, the door opening device (7) having a motor (14) with which the door (4) can be moved automatically, characterized in that Household appliance (1) has at least one pitch cable (16, 17), which is coupled to the motor (14) and can be actuated by means of the motor (14), the pitch cable (16, 17) having at least one driver (20, 21, 20') of the household appliance (1), which can be moved with the pitch cable (16, 17) in the depth direction (z) of the household appliance (1), the door (4) being connected to the driver (20, 21, 20'). is coupled so that the door (4) can be moved when the driver (20, 21, 20 ') moves.

2. Household appliance (1) according to claim 1, characterized in that the door (4) with the door opening device (7) can be moved automatically at least in sections from a closed end position to an open end position and / or the door (4) with the door opening device ( 7) can be moved automatically, at least in sections, from an open end position to a closed end position.

3. Household appliance (1) according to claim 2, characterized in that the door (4) can be moved completely automatically starting from the closed end position up to at least a threshold tilt position, in particular between 40 ° and 50 ° to the vertical, the threshold value -Tilted position is characterized by the fact that from this point onwards the further movement of the door (4) into the open end position takes place independently based solely on gravity.

4. Household appliance (1) according to one of the preceding claims, characterized in that the driver (20, 21, 20 ') has a U-shaped driver part (34) which has the U-opening (35) in the depth direction (z). of the household appliance (1) is arranged to the rear, and has an upper engagement opening (39), into which a coupling part (51), which is coupled to the door (4), can engage for coupling with the driver (20, 21, 20 '). . Household appliance (1) according to one of the preceding claims, characterized in that the driver (20, 21, 20') is guided in its movement in the depth direction (z) in a guide slot (46, 48) of the household appliance (1). Household appliance (1) according to claim 5, characterized in that the driver (20, 21, 20') has laterally projecting guide webs (44, 45) which engage in the guide link (46, 48). Household appliance (1) according to claim 6, characterized in that in the width direction (x) of the household appliance (1) on both sides of the driver (20, 21, 20 ') a guide link (46, 48) is arranged, in each of which a wing-like for The guide bar (44, 45) protruding from the side engages. Household appliance (1) according to one of the preceding claims, characterized in that the driver (20, 21, 20') is firmly connected to one end of a pitch cable (16, 17), in particular is welded to it. Household appliance (1) according to one of the preceding claims, characterized in that the household appliance (1) has a coupling rod (50) oriented in the width direction (x), which is coupled to the door (4), in particular to a door connection (52). and which is mounted movably in the depth direction (z), wherein at least one coupling part (51) is arranged on the coupling rod (50), which is arranged for direct coupling to the driver (20, 21, 20 '). Household appliance (1) according to claim 9, characterized in that the coupling part (51) is fixed in place on the coupling rod (50) and is arranged to protrude freely downwards from the coupling rod (50). 11. Household appliance (1) according to one of the preceding claims, characterized in that the driver (20, 21, 20 ') is an opening driver with which, in particular, only one opening movement of the door (4) can be carried, and that Household appliance (1) has at least one further driver (55, 56), which is a closing driver with which, in particular, only one closing movement of the door (4) can be carried.

12. Household appliance (1) according to claim 11, characterized in that the closing driver is connected to a gradient cable (16, 17), in particular is connected to the gradient cable (16, 17) to which the opening driver is connected, so that a system consisting of a driver (20, 21, 20') and a further driver (55, 56) is formed on a pitch cable (16, 17).

13. Household appliance (1) according to one of the preceding claims, characterized in that the household appliance (1) has at least one additional driver (57, 58, 59) which is separate from the driver (20, 21, 20 ') and movable in the depth direction (z). 60), which can be coupled to a driver (20, 21, 20 ') and / or the door (4).

14. Household appliance (1) according to claim 13, characterized in that a front additional driver (57, 58) in the depth direction (z) and a rear additional driver (59, 50) in the depth direction (z) are arranged, which are independent of one another in the depth direction ( z) are arranged movably.

15. A method for moving a door (4) of a household appliance (1), in particular according to one of the preceding claims, comprising the following steps: actuating the door (4) according to a first type of actuation, for which purpose a motor (14) has a pitch cable (16, 17) is actuated and by its actuation a driver (20, 21, 20') is moved in the depth direction (z) of the household appliance (1) and the driver (20, 21, 20') is coupled to the door (4), so that the door (4) is moved along with the movement of the driver (20, 21, 20').