EP2597378A1 - Household appliance with a retractable device door - Google Patents

Abstract

The appliance (1) has an interior space (3) for receiving to be treated material. An apparatus door (4) is provided for opening and closing the interior space of reservoir (5). A guidance system is provided to set apparatus door between closed position at which interior space is closed and open position at which interior space is opened. A locking device is set to secure apparatus door in closed position. The apparatus door is unlocked from closed position into open position through automatically retracting gravitational force by unlocking the locking device.

Description

The invention relates to a household appliance for the treatment of a good, with a trained in a device housing interior for receiving the material to be treated, with a door to close the interior, as well as with a trained below the interior storage space in which the door is guided via a guide system is retractable. The appliance door is movable between a closed position, in which the appliance door closes the interior - in particular completely -, and an open position, in which the appliance door releases the interior and is at least predominantly stowed in the storage space. The household appliance also includes a locking device by means of which the appliance door is positionally secured in the closed position.

The invention is based on a household appliance, namely in particular an oven, as it is for example in the document DE 201 21 929 U1 is described. Such a household appliance has a door, which is sunk when opening in a directly below the interior - namely the cooking chamber - arranged storage space, using a guide system. In this case, the door is connected to opposite, arranged on the respective sides of the door guide elements in the form of rollers, which are guided in respective laterally adjacent to the door on the housing, formed by U-shaped guide grooves. These guide grooves extend laterally from a front portion of the household appliance slightly obliquely upward toward a rear portion of the household appliance. On the housing also two opposite rollers are provided, which engage in lateral guides of the door and on which the door is guided. These rollers also form a pivotal axis about which the door is pivoted when opened. When the door is opened, it is pivoted about the pivot axis and thereby guided over the said guide elements along the guide grooves and at the same time over the guides formed in the door on the fixed rollers. Furthermore, the door is held in its closed position by a holding mechanism, which laterally next to the door each has a spring-loaded rocker, which protrude respectively with an integrally formed bolt through recesses in the guide grooves and the Secure guide elements of the door in their layers. When opening the oven door, the bolts are pushed away by the guide elements from the guide grooves and thereby deflected the rockers against a spring force.

In the object according to document DE 201 21 929 U1 the door is opened and closed manually by the user. However, it can also be provided that the door is designed with a drive, for example with an electric motor and a lever mechanism.

It is an object of the invention to provide a solution as in a household appliance of the type mentioned in the comfort when opening the door can be increased compared to the prior art, in particular without a special motor drive is used.

This object is achieved by a household appliance with the features according to claim 1. Advantageous embodiments of the invention are the subject of the dependent claims, the description and the figures.

An inventive household appliance is designed for the treatment of a good and includes a housing formed in a device housing for receiving the material to be treated, a door to close the interior and a trained below the interior storage space. The appliance door can be sunk into the storage space by a guide system. In this case, the appliance door between a closed position and an open position is movable: While in the closed position, the door closes the interior - especially completely - it releases the interior in the open position and is at least predominantly arranged stowed in the arranged directly under the interior storage space. By means of a locking device, the door is secured in position in the closed position. According to the invention it is provided that after unlocking the locking device, the appliance door from the closed position into the open position at least in sections, in particular over a vast stretch of distance, automatically retractable due to its own gravity.

Thus, the effect of the invention is achieved in that the door is automatically sunk into the storage space, at least in parts alone due to its own gravity. Waiving an additional motor drive to open the door thus only the gravity of the door is used to immerse them in the storage space. Such a procedure is particularly user-friendly: The user can only - for example by means of a control element on the control panel - unlock the door, and the door is then automatically or automatically sunk by their own gravity in the storage space. Because no motor or the like to open the door is required, thus costs can be saved, as well as the valuable space. The invention makes use of the fact that the appliance door - especially in an oven - has a relatively high mass, which may be even greater than 10kg. Because of this high mass and the gravity of the door is correspondingly large, which can be exploited for autonomous movement of the door in the storage space. For this purpose, of course, appropriate measures are taken that allow such an automatic sinking of the door, such as the interpretation of said guide system. The invention also has the advantage that it can be dispensed with a classic door handle and the unlocking of the locking device can be done for example by means of a control element.

The door is sunk from the closed position to the open position at least in parts - especially over a vast stretch of road - exclusively due to its own gravity. This means that at least in sections, no further force is required to sink the door into the storage space. The sinking takes place exclusively because of its own gravity. This self-subsidence due to its own gravity is preferably over the vast distance, in particular over the entire distance from the closed position to the open position with the exception of an initial angular range in the closed position.

In the closed position can namely be provided that the appliance door (in the closed position) by means of a spring force, in particular the guide system, is arranged biased. Then, the appliance door is supported in sections with the spring force in places in the direction of unlocking the locking device Opening position moves. The guide system - and in particular at least one hinge - can namely be designed with respect to its torque so that the door opens from the closed position without further force by the user. For this purpose, the torque or the spring force in the closed position of the door in the direction of the open position act. By means of the spring force, the appliance door is thus moved out of the vertical closed position after unlocking the locking device, so that the appliance door is no longer aligned vertically but at a certain angle to the vertical. Gravity is then applied here, and the appliance door can be moved automatically up to the opening position in the storage space solely on the basis of its own gravitational force.

By means of the locking device, the door is secured in position in the closed position. This means in particular that the appliance door is mechanically locked in its closed position by means of the locking device, that is blocked. It is thus prevented that the door is moved unintentionally from the closed position to the open position, such as by pulling the door at a locked locking device. The locking device is preferably arranged in an upper region of the appliance door; it may be, for example, a mechanical and / or magnetic and / or electrical locking device.

Of course, the user is also given the opportunity to unlock the locking device and open the door: In one embodiment, an operating element is provided which can be actuated by the user and which serves to unlock the locking device. This operating element is preferably formed separately from the appliance door and can be arranged, for example, on a control panel of the household appliance. With regard to the configuration of the operating element, two different embodiments are provided in principle. On the one hand, the operating element may be a mechanical button, which can simply be pressed for unlocking the locking device by the user. This mechanical button can then immediately cause a mechanical unlocking of the locking device and thus cause the independent opening of the door. Such a button is particularly easy to implement; in fact, no additional electrical components need to be used. This solution is therefore particularly favorable. On the other hand However, also be provided that the control element is an electronic control element which is designed to deliver after actuation by the user an electrical actuation signal to a control unit of the household appliance, so that the control unit causes the unlocking of the locking device due to this electrical actuation signal. On the one hand, this embodiment is particularly user-friendly and, on the other hand, makes it possible for the control unit to check a state of the domestic appliance after receiving the actuating signal and possibly also to prevent the unlocking of the locking device. The control unit can thus cause the unlocking of the locking device in dependence on the state of the household appliance. For example, the control unit is designed to make the unlocking of the locking device dependent on a prevailing in the interior of the household appliance operating temperature. This proves particularly in the so-called pyrolysis of a baking oven, in which the temperature in the oven can even reach several hundred degrees Celsius, as advantageous. If the temperature exceeds a predetermined limit - about 300 ° C or 350 ° C or 400 ° C - the control unit can prevent unlocking of the locking device. In this case, for example, information can be output on a display of the household appliance that the opening of the door is currently not possible.

As already stated, is used - especially in an oven - usually a door that is relatively heavy and whose mass may even exceed 10kg. In order to prevent excessive acceleration of the door when opening, it is thus provided in one embodiment that the guide system has at least one attenuator, by means of which the door is braked when sunk into the open position. It is preferred to use a speed-dependent attenuator whose braking force increases with increasing speed of the door. The use of an attenuator ensures that the acceleration and the speed of the door can be limited when sinking into the storage space. In this way, it is possible to ensure a slow, gentle opening of the door. Another advantage of the attenuator is that the risk of injury when opening the door is reduced to a minimum, due to low speed of the door and due to low movement forces.

Preferably, the attenuator is a hydraulic damper. This has the advantage that the noise when opening the door is reduced to a minimum.

The attenuator is designed for example as a rotary damper. Such an attenuator may have a rotatably mounted disc which generates a braking force for the door during a rotational movement. This embodiment ensures a space-saving and compact design of the guide system.

It proves to be particularly advantageous if a tooth structure is formed on an outer circumference of the rotatable disc and the damping member also has an elongate toothed element guided in a guideway with an elongate tooth structure which is in engagement with the corresponding tooth structure of the rotatable disc. Then, by moving the elongate toothed element along the guideway, the disc for braking the appliance door is also rotated. In this case, a device connected to the door guide element may have a driver element which entrains the elongated tooth element in a braking position of the door when lowering the door and thus causes the rotation of the disc and the braking of the door. The braking of the door is thus particularly effective and reliable. In addition, it is thus possible to make the angular travel or angle range in which the appliance door should be braked when sinking, without much effort. It is thus also possible not to let the braking force act over the entire opening path, but for example in a predetermined, desired angular range.

Preferably, the elongated tooth element remains in any position of the door in engagement with the tooth structure of the rotatable disc. This prevents the guide element of the door from engaging in the tooth structure of the pane and damaging this tooth structure. Too high wear or the destruction of the tooth structure are thus avoided.

The elongate toothed element may have a first web, on which in the braking position the toothed element is entrained by the entrainment element of the guide element. The guideway of the elongated tooth element can under be arranged at an angle not equal to 0 ° with respect to a guide groove of the guide member of the door, so that after covering a predetermined braking distance from the braking position, the driver element of the guide element is separated from the web of the toothed element and the door is no longer braked. With little technical effort, therefore, the position can be set very precise, in which the door should no longer be braked. This can be done by simply designing the length of the first land.

The elongated toothed element may also have a second web on which the toothed element is moved when moving the door from the open position to the closed position - ie when closing the door - by the driver element of the guide element. Thus, the elongated tooth element is moved back to its original position. This embodiment is also particularly easy to implement and also enables effective and reliable movement of the elongate toothed element into its starting position.

At least one web - namely on the first web and / or on the second web - a buffer or spring element may be provided. Such a buffer or spring element ensures a smooth and soft contact with the driver element of the guide element. Thus, the impulse is smoothed when contacting the web by the driver element and the peak load is reduced. In this way, it is therefore possible to preclude damage to the attenuator due to an impact.

The attenuator can also be designed such that it acts exclusively in one direction. It can namely be provided that only when sinking into the storage space - ie when opening - the door is braked by means of the attenuator. This has the advantage that a light, low-power closing of the door is made possible by hand.

The guide system preferably includes a first attenuator and a second attenuator: By the first attenuator, the door can be braked in a predetermined angular range between the closed position and the open position. It has proved to be particularly advantageous if by means of first damper the door is braked in an angular range (with respect to the vertical closed position) of about 17 ° or 18 ° or 19 ° or 20 ° or 21 ° to about 70 ° or 71 ° or 72 ° or 73 ° or 74 °. By means of the first attenuator, the appliance door is thus braked by a first angle value with respect to the vertical up to a second angle value, wherein the first angle value in a value range of 15 ° to 25 ° and the second angle value in a value range of 65 ° to 80 ° can. The second attenuator, on the other hand, is preferably used to brake the appliance door at the end of the opening stroke, ie, for example, to reach the open position in the storage space. This second braking distance thus preferably starts at about 84 ° or 85 ° or 86 ° or 87 ° and ends with the open position of the door or a few degrees before the open position.

With regard to the arrangement of the at least one attenuator, different embodiments may be provided. For example, only one single attenuator can be arranged on one side of the appliance door per braking path. Alternatively, however, it is also possible to provide two damping elements per braking path, which are arranged opposite one another on two different sides of the appliance door on the appliance housing.

Preferably, the household appliance is a device for preparing food, in particular a cooking appliance, preferably an oven. The household appliance may also be another device, such as a dishwasher.

The closing of the door, so moving the door from the open position to the closed position is preferably done manually by the user. Optionally, however, a motor can be used, which then serves to automatically close the door.

Further features of the invention will become apparent from the claims, the figures and the description of the figures. All 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 alone in the figures can be used not only in the respectively indicated combination but also in other combinations or alone.

The invention will now be explained with reference to a preferred embodiment, as well as with reference to the accompanying drawings.

Fig. 1

in schematischer Darstellung ein Haushaltsgerät gemäß einer Ausführungsform der Erfindung;

Fig. 2

in schematischer Darstellung eine Gerätetür des Haushaltsgeräts in unterschiedlichen Stellungen, wobei der Vorgang des Öffnens der Gerätetür näher erläutert wird;

Fig. 3

in schematischer und perspektivischer Darstellung ein Führungssystem zum Führen der Gerätetür;

Fig. 4

in schematischer Darstellung das Führungssystem von einer anderen Seite;

Fig. 5 bis 7

in schematischer Darstellung eine Seitenansicht eines Abschnitts des Führungssystems, wobei sich ein Führungselement in unterschiedlichen Stellungen befindet und die Funktionsweise eines ersten Dämpfungsglieds näher erläutert wird; und

Fig. 8

in schematischer und perspektivischer Darstellung ein zweites Dämpfungsglied des Führungssystems.

Show it:

Fig. 1

a schematic representation of a household appliance according to an embodiment of the invention;

Fig. 2

a schematic representation of a door of the household appliance in different positions, the operation of opening the door is explained in detail;

Fig. 3

in a schematic and perspective view of a guide system for guiding the door;

Fig. 4

a schematic representation of the guide system from another side;

Fig. 5 to 7

a schematic representation of a side view of a portion of the guide system, wherein a guide element is in different positions and the operation of a first attenuator is explained in detail; and

Fig. 8

in a schematic and perspective view of a second attenuator of the guide system.

In Fig. 1 is shown in a schematic and highly abstract representation of a household appliance 1 according to an embodiment of the invention. The household appliance 1 is an oven in the embodiment. It has a device housing 2, in which an interior 3 is formed, which serves to receive food. The household appliance 1 thus serves to treat a good, namely for the preparation of food.

The interior 3 is closed by means of a door 4, which can be sunk in a space formed below the interior 3 storage space 5. The appliance door 4 is thus movable between a closed position, in which the appliance door completely covers the interior space 3, and an open position, in which the appliance door 4 is arranged substantially completely stowed in the storage space 5. To sink the door 4 in the storage space 5 is used in Fig. 1 not shown in detail guide system over which the appliance door 4 can be moved from the closed position to the open position. In the closed position of the appliance door 4, in which the appliance door 4 completely closes the interior 3, the appliance door 4 is blocked or secured by means of a locking device (not shown in the figures), so that the appliance door 4 can be opened by pulling the appliance door 4 alone not possible. To open the appliance door 4, the user needs to actuate a control element 7 arranged on a control panel 6. After actuation of the operating element 7, the appliance door 4 is unlocked in the closed position and pressed by means of said guide system a little in the direction of the open position, so that the appliance door 4 is moved out of the closed position. Subsequently, the appliance door 4 reaches a position from which the appliance door 4 is moved exclusively due to its own gravity to the open position. After pressing the operating element 7 or after unlocking the locking device thus acts on the door 4 torque from the side of the guide system, due to which the appliance door 4 pops out of the closed position and then exclusively due to their own gravity, the open position, ie the end position in the storage space. 5 reached. In other words, the appliance door 4 is biased in the vertical closed position by means of a spring force, so that after unlocking the locking device, the appliance door 4 is initially performed under spring load and then alone due to gravity automatically in the open position.

In Fig. 2 the appliance door 4 is shown schematically in a variety of different positions. As already stated, the appliance door 4 between the vertical closed position I, in which the inner space 3 is closed, and the horizontal opening position II movable, in which the appliance door 4 is stowed in the storage space 5. In Fig. 2 are also shown several intermediate positions, namely, for example, a first braking position III, from which the appliance door 4 using the Guide system - and more specifically an attenuator (see below) - braked. Namely, a door 4 is used, which has a relatively high mass, which may even exceed 10kg. For this reason, it is particularly advantageous if from the braking position III to a release position IV, the door 4 is braked. The braking effect thus begins from the braking position III, which encloses an angle α with the closed position I, which may be, for example, in a value range of 15 ° to 30 °. This angle α is in the embodiment 18 ° or 19 ° or 20 °.

Between the braking position III and the release position IV, the door 4 is continuously braked. In this case, an angle α + β between the closed position I and the release position IV in a value range of 65 ° to 80 °. This angle α + β is for example 71 ° or 72 ° or 73 °.

After reaching the release position IV, the door 4 can move freely, up to the opening position II. Optionally, also a further brake angle range can be provided, and from a second braking position V to the open position II or shortly before. Here, a second attenuator may be provided by which the appliance door 4 is braked shortly before reaching the last open position II.

As already stated, the appliance door 4 is locked or blocked in the vertical closed position I by means of the locking device. This locking device can be designed, for example, mechanically and / or magnetically. The design of the control element 7 may be different: It may be the control element 7 to a mechanical button, such as a push button act, which can be pressed by the user and which then immediately causes the unlocking of the locking device, and that mechanically , Alternatively, however, the operating element 7 can also be an electronic actuating element which is electrically coupled to a control unit 8 (see FIG Fig. 1 ). After actuation of the electronic control element 7, the control unit 8 can receive an actuating signal and evaluate it with regard to the unlocking of the appliance door 4. In this case, the control unit 8 - which may be, for example, a microcontroller and / or a digital signal processor - check whether a state of the household appliance 1 is present, which makes it possible to unlock the locking device. A conceivable state, in If such a cleaning - determined, for example, based on sensor data of a temperature sensor - so there is no unlocking of the door 4. Otherwise, the control unit 8 can unlock the locking device due to the actuation signal so that then the appliance door 4 is sunk into the storage space 5 automatically.

The above guide system will be described below with reference to FIGS FIGS. 3 to 8 explained in more detail:

In Fig. 3 the guide system 9 is shown in a perspective view. The guide system 9 has a hinge rocker 10, which is pivotally mounted about a pivot axis 11, with respect to the device housing 2. On the hinge rocker 10 two rollers 12, 13 are mounted in the form of rotatable discs which are rotatably mounted on the hinge rocker 10 , The rollers 12, 13 are fixedly arranged on the hinge rocker 10 and can only be rotated about the respective axis of rotational symmetry. This has the consequence that in a first position of the hinge rocker 10, the rollers 12, 13 are arranged vertically or lie on a common vertical, while in a second position of the hinge rocker 10, the rollers 12, 13 are aligned horizontally or on a common Horizontal lie. The first position of the hinge rocker 10, in which the rollers 12, 13 are vertically aligned, corresponds to the closed position of the appliance door 4, while the second position of the hinge rocker 10 corresponds to the open position of the appliance door 4.

The rollers 12, 13 are guided in lateral guides of the door 4. This means that the two rollers 12, 13 are slidably guided in a guide formed laterally on the appliance door 4, so that the appliance door 4 is displaceable along a straight line connecting the two rollers 12, 13.

The guide system 9 also includes a guide member 14 which is slidably guided in a laterally formed on the housing 2 guide groove 15. The guide element 14 is designed in the form of a carriage and via a rod 16 with an opposing further guide element 14 '(see Fig. 4 ) connected. The guide element 14 also has a bearing 17 in which the appliance door 4 (in FIG. 3 not shown) is pivotally mounted, namely about a horizontal and parallel to the rod 16 extending pivot axis. In this case, a floor facing the end of the door 4 is pivotally mounted on the bearing 17. By means of this pivotable connection of the appliance door 4 with the guide element 14, it can be achieved that the appliance door 4 can be aligned horizontally and guided over the rollers 12, 13 into the storage space 5. In the closed position of the appliance door 4 while the hinge rocker 10 is in its first position (the rollers 12, 13 are located on a common vertical), and the guide member 14 is disposed directly below the hinge rocker 10. If the appliance door 4 is moved out of the closed position, the hinge rocker 10 is moved about the pivot axis 11 in FIG Fig. 3 pivoted in the clockwise direction and the guide member 14 moves in the direction of the arrow 18. With increasing angle, the portion of the door 4, which is beyond the rollers 12, 13, so already in the storage space 5 increases. As the angle increases, so does the guide element 14, together with the appliance door 4, move deeper and deeper into the storage space 5, namely in the direction of a rear wall of the household appliance 1.

As already stated, the appliance door 4 is biased in the closed position with a spring force. This spring force is generated by means of a spring, which is connected to the hinge rocker 10 and by means of which also the hinge rocker 10 is biased. If the two rollers 12, 13 in the closed position at a common vertical, so causes the spring force that the roller 12 in Fig. 3 to the left and the roller 13 is pushed to the right. After unlocking the locking device, the appliance door 4 thus springs under spring force out of the closed position and can then move due to its own gravity, the guide member 14 along the guide groove 15 and sunk into the open position.

The hinge rocker 10 also has a protruding nose 27, which is received in the closed position of the appliance door 4 in a corresponding receptacle 28 in the guide member 14. The spring force for biasing the appliance door 4 can thus be transmitted via the nose 27 on the guide member 14. The guide system 9 also includes a first damping member 19, by means of which the appliance door 4 from the first braking position III in accordance with Fig. 2 is braked for the subsequent angle β. The damping member 19 is designed as a rotational damper and has a rotatably mounted on the housing 2 disc 20, which has a tooth structure 21 at its outer periphery. The rotatable disc 20 is a hydraulic damper, the damping effect of which depends on the speed of the appliance door 4. And this braking effect increases with increasing speed of the door 4. The tooth structure 21 of the rotatable disc 20 is in engagement with an elongated, corresponding tooth structure 22 of an elongate tooth element 23. The elongated tooth element 23 is displaceably guided in a guideway 24, in the direction of the rear wall of the household appliance 1 Teeth element 23 is designed in the form of a rod which extends substantially perpendicular to the rod 16. The toothed element 23 also has two upwardly projecting webs, namely a first web 25, as well as a second web 26. The two webs 25, 26 are arranged at opposite ends of the toothed element 23. They stand in a direction which is opposite to a direction in which the teeth of the tooth structure 22 point. The tooth structure 22 is engaged continuously and in every position of the appliance door 4 with the corresponding tooth structure 21 of the rotatable disc 20, so that the guide element 14 is prevented from coming into contact with the rotatable disc 20 and damaging it.

In Fig. 4 the opposite side of the guide system 9 is shown. How out Fig. 4 shows, on the opposite side also a guide member 14 'is provided, which is connected via the rod 16 with the guide member 14. This guide element 14 'is guided in a guide groove 15' which is mirror-symmetrical to the guide groove 15. Also on the opposite side, a same hinge rocker 10 'is provided, on which two rollers 12', 13 'are mounted. These two rollers 12 ', 13' slide in a guide which is formed on the opposite side of the appliance door 4 along the door.

Optionally, it can also be provided that a corresponding damping member 19 'is also provided on the opposite side, which braking the Door 4 supported in the angular range β. This attenuator 19 'can be constructed exactly the same as the attenuator 19.

As in particular from Fig. 4 As can be seen, the guide system 9 may also have a second damping member 29, by means of which the appliance door 4 is braked shortly before reaching the open position or the end position in the storage space 5. Here, the appliance door 4 can be braked in an angular range, for example, from 85 ° to 90 °. The configuration of the second attenuator will be described below with reference to Fig. 8 explained in more detail.

Referring now to the Fig. 5 to 7 the operation of the first attenuator 19 is explained in more detail:

In Fig. 5 the guide element 14 is shown in its initial position; the appliance door 4 is in the closed position I, in which it closes the interior 3. The appliance door 4 is now unlocked and moved out of the closed position, so that the guide member 14 is moved in the direction of the arrow 18 along the guide groove 15. The guide groove 15 extends a little obliquely upwards or has a small increase. The guide element 14 then reaches the first braking position in which the attenuator 19 brakes the appliance door 4. The brake position III is in Fig. 6 shown.

The guide element 14 has a downwardly projecting driver element 30, which serves for moving the elongated toothed element 23. The guide system 9 is designed so that the driver element 30 in the first braking position III of the appliance door 4 entrains the elongated toothed element 23 at its first web 25, so that the toothed element 23 in the angular range β in accordance Fig. 2 is moved together with the guide member 14 with. In order to smooth the pulse in the braking position III, a buffer or spring element 31 is attached to the first web 25, which dampens the shock and thus prevents damage to the toothed element 23 and the guide member 14.

As already stated, the toothed element 23 is moved together in the angular range β with the guide element 14, while the rotatable disc 20 rotates and generates the braking force. In this case, the toothed element 23 on the first web 25th pulled by the driver element 30 of the guide member 14. The guideway 24 is provided with a bevel 33 in its end region 32, so that it extends at an angle not equal to 0 ° relative to the guide groove 15 of the guide element 14. In this way, the driver element 30 of the guide member 14 can be separated from the first web 25, so that the braking effect of the attenuator 19 exclusively up to the release position IV according to Fig. 2 is active. By the slope 33 in the end portion 32 is also achieved that the elongated toothed element 23 in the release position IV - this position is in Fig. 7 shown - remains and when closing the door 4, the first web 25 the driver element 30 is no longer in the way. By the slope 33, the first web 25 is sunk namely in the direction of the bottom of the household appliance 1.

If the appliance door 4 continues to move in the direction of the open position II due to its own gravitational force, the guide element 14 is also moved in the direction of the second attenuator 29, which is located at the end of the guide groove 15. How out Fig. 8 As can be seen, the second attenuator 29 is basically the same as the first attenuator 19 and has a rotatable disc 34 with a tooth structure 35 which engages an elongated tooth structure 36 of an elongated tooth element 37. Also, this elongated toothed element 37 has two upwardly projecting webs, namely a first web 38, as well as a second web 39. The operation of the second attenuator 29 is exactly the same as that of the first attenuator 19, and carried along the elongated toothed element 37 in the same way by means of the driver element 30 on the one hand and the webs 39, 38 on the other. A guideway 40, in which the elongated toothed element 37 is guided, namely also has a bevel 41 in its end region. Optionally, this bevel 41 can be dispensed with, and the end of the guideway 40 can constitute an end stop for the movement of the guide element 14. In the in Fig. 8 illustrated embodiment, however, the guide member 14 may move slightly further than the toothed element 37.

Overall, therefore, the appliance door 4 is braked in a wider angle range, namely at the end shortly before reaching the open position in the storage space. 5

If the appliance door 4, however, moves from the open position to the closed position, the two elongated tooth elements 23, 37 are indeed taken with the driver element 30, however, the rotatable discs 20, 34 have no braking action in this direction.

LIST OF REFERENCE NUMBERS

1

household appliance

2

device housing

3

inner space

4

door

5

storage space

6

control panel

7

operating element

8th

control unit

9

guidance system

10, 10 '

hinge rocker

11

swivel axis

12, 13; 12 ', 13'

roll

14, 14 '

guide element

15, 15 '

guide

16

pole

17

camp

18

arrow

19, 19 '

attenuator

20

disc

21, 22

tooth structure

23

tooth element

24

guideway

25, 26

web

27

nose

28

admission

29

attenuator

30

dogging

31

Buffer or spring element

32

end

33

slope

34

disc

35, 36

tooth structure

37

tooth element

38, 39

Stege

40

guideway

41

slope

I

closed position

II

open position

III

first brake position

IV

release position

V

second brake position

α

angle

β

angle

Claims (15)

Domestic appliance (1) for treating a good, with an interior (3) designed to receive the material to be treated, formed in a device housing (2), with a door (4) for closing the interior (3), with a space below the interior (3 ) formed storage space (5), in which the appliance door (4) guided via a guide system (9) is retractable, so that the appliance door (4) between a closed position (I), in which the appliance door (4) the interior (3) closes, and an open position (II) is movable, in which the appliance door (4) the interior (3) releases and at least predominantly stowed in the storage space (5) is arranged, and with a locking device by means of which the appliance door (4) in the closed position (I) is secured in position, characterized in that after unlocking the locking device, the appliance door (4) from the closed position (I) in the open position (II) at least in parts due to its own Gravity is automatically retractable. Domestic appliance (1) according to claim 1, characterized in that the appliance door (4) in the closed position (I) by means of a spring force, in particular of the guide system (9), biased, so that after unlocking the locking device, the door (4) in sections supported by the spring force in the direction of the open position (II) is movable. Domestic appliance (1) according to claim 1 or 2, characterized in that in the closed position (I), the appliance door (4) is mechanically locked by means of the locking device. Domestic appliance (1) according to one of the preceding claims, characterized by an actuatable by a user operating element (7) for unlocking the locking device. Domestic appliance (1) according to claim 4, characterized in that the operating element (7) is a mechanical button. Domestic appliance (1) according to claim 4, characterized in that the operating element (7) is an electronic operating element (7) which is adapted to deliver an actuation by the user an electrical actuating signal to a control unit (8), on the basis of which the control unit (8) causes the unlocking of the locking device. Domestic appliance (1) according to one of the preceding claims, characterized in that , the guide system (9) at least one attenuator (19, 19 ', 29), by means of which the appliance door (4) when sinking into the open position (II) at least in sections is brakable. Domestic appliance (1) according to claim 7, characterized in that the damping member (19, 19 ', 29) is a hydraulic damper. Domestic appliance (1) according to claim 7 or 8, characterized in that the damping member (19, 19 ', 29) as a rotational damper with a rotatably mounted disc (20, 34) is formed, which during a rotational movement, a braking force for the appliance door (4 ) generated. Domestic appliance (1) according to claim 9, characterized in that on an outer periphery of the rotatable disc (20, 34) has a tooth structure (21, 35) is formed and the damping member (19, 19 ', 29) an elongated running, in a guideway (24, 40) guided toothed element (23, 37) having an elongated tooth structure (22, 36) which is in engagement with the tooth structure (21, 35) of the rotatable disc (20, 34), so that by moving the elongated Tooth element (23, 37) along the guide track (24, 40), the disc (20, 34) for braking the door (4) is rotatable, wherein a with the door (4) connected to the guide element (14, 14 ') a driver element ( 30), which in a braking position (III, V) of the appliance door (4) when lowering the appliance door (4) entrains the elongated toothed element (23, 37). Domestic appliance (1) according to claim 10, characterized in that in each position (I to V) of the appliance door (4), the elongated toothed element (23, 37) into engagement with the tooth structure (21, 35) of the rotatable disc (20, 34) remains, so that engagement of the guide element (14, 14 ') in the tooth structure (21, 35, 22, 36) of the disc (20, 34) prevented is. Domestic appliance (1) according to claim 10 or 11, characterized in that the elongated toothed element (23, 37) has a first web (25) on which in the braking position (III, V) the toothed element (23, 37) by the driver element (30) of the guide element (14, 14 ') is entrainable, wherein the guide track (24, 40) of the elongated toothed element (23, 37) at least in sections at an angle not equal to 0 ° to a guide groove (15) of the guide element (14, 14 ') is arranged, so that after covering a predetermined braking distance (β) from the braking position (III, V), the driver element (30) of the guide element (14, 14') of the web (25) of the toothed element (23, 37) separable is. Domestic appliance (1) according to one of claims 10 to 12, characterized in that the elongated toothed element (23, 37) has a second web (26) on which the toothed element (23, 37) moves when moving the appliance door (4) of the Opening position (II) in the closed position (I) by the driver element (30) of the guide element (14, 14 ') is entrained to move the elongated toothed element (23, 37) in its initial position. Domestic appliance (1) according to one of claims 7 to 13, characterized in that only when sinking into the storage space (5) the appliance door (4) by means of the attenuator (19, 19 ', 29) is brakable. Domestic appliance (1) according to one of claims 7 to 14, characterized in that the guide system (9) comprises a first damping member (19, 19 '), by means of which the appliance door (4) in a predetermined angular range (β) between the closed position (I ) and the opening position (II) is brakable, and a second damping member (29), by means of which the appliance door (4) in an end region in front of the open position (II) is braked.

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