Household appliance with closable access opening

Abstract

The invention relates to a household appliance (1), preferably a cooking appliance (1), with an interior (12) configured to receive at least one object to be treated through an access opening (13) along the longitudinal axis (X), with a closing element (14) configured, preferably by pivoting via a pivoting element, preferably a hinge, to close and release the access opening (13) of the interior (12) from the front, and with a, preferably electric, motor (18) configured to move the closing element (14) back and forth between a position closing the access opening (13) and a position releasing the access opening (13). The cooking appliance (1) is characterized in that the motor (18) is fixedly connected to a clutch disc (19) by means of a motor shaft (18a) in order to drive the clutch disc (19) rotationally, wherein the clutch disc (19) is connected by means of a clutch bolt (17a),preferably a crank (17b) is connected to the locking element (14) in a force-transmitting manner, wherein the clutch disc (19) has a clutch-side guide contour (19a) which movably receives a first end of the clutch bolt (17a), wherein the clutch-side guide contour (19a) of the clutch disc (19) has: • at least a first handrail guide (19b) in which the first end of the clutch bolt (17a) is received and moved translationally back and forth relative to the stationary clutch disc (19) if a user manually moves the locking element (14) back and forth between the position closing the access opening (13) and the position releasing the access opening (13), and • at least a first motor guide (19d) in which the first end of the clutch bolt (17a) is received and moved rotationally back and forth by the rotating clutch disc (19),if the motor (18) moves the locking element (14) back and forth between the position closing the access opening (13) and the position releasing the access opening (13), wherein the first motor guide (19d) is formed by one end of the first handrail guide (19b).

Description

[0001] The invention relates to a household appliance with a motor-driven closure element.

[0002] Cooking appliances are known which have a fixed, i.e., stationary, cooking chamber formed with the cooking appliance, in which the food can be placed in or on a cooking utensil and cooked with the cooking chamber closed. Such a cooking appliance can be, for example, an oven, a steamer, a combination oven with a steamer, and the like. Such cooking appliances with a fixed cooking chamber typically have a height of approximately 45 cm along the vertical axis, at least in Germany, although ovens with a height of approximately 60 cm are also common.

[0003] Such cooking appliances with a fixed cooking chamber have in common that they have an outer housing which essentially encloses the cooking appliance on the outside and protects its individual components and elements, as well as making them easier to handle together. Within the cooking appliance, an interior space is formed which represents the cooking chamber and is essentially enclosed by an inner housing, also referred to as a cooking chamber muffle or muffle. Between the inner housing and the outer housing, a housing space is formed as an intermediate space, in which functional elements of the cooking appliance, such as a control system or control unit, an electrical power supply and other components which serve the intended use of the cooking appliance can be arranged. In depth from the front, i.e. viewed from the user's perspective, the outer housing ora panel in the form of a furniture material or in the form of a control panel and the like together with the inner housing closes off the housing space so that the housing space is not accessible to the user.

[0004] The interior of the cooking appliance has a through-opening at the front in depth as an access opening, through which the interior of the cooking appliance is accessible to the user in order to insert cooking utensils into the interior of the cooking appliance as its cooking chamber and to arrange them there, as well as to remove cooking utensils from the interior of the cooking appliance after the food has been cooked. The access opening can be opened by the user by means of a closure element, for example in the form of a door that can be pivoted to the side, a flap that can be pivoted downwards, or the like, in order to access the interior of the cooking appliance, as described above, or to close the interior of the cooking appliance and carry out the cooking operation or process. Such a closure element can be closed or have a viewing window to allow the user a view into the closed interior of the cooking appliance.

[0005] Such cooking appliances with a fixed cooking chamber are usually designed as built-in appliances or as built-in kitchen appliances in order to be arranged with their outer casing in a space-saving manner and at a height that is easily accessible for the user along the vertical axis in kitchen furniture, such as in built-in kitchen cupboards, and to be flush with the surfaces of the other cooking appliances, drawers, doors and the like of the kitchen furniture towards the front of the user with their locking element, if necessary also with their panel (see above), which can improve the visual impression for the user. However, such cooking appliances can also be designed as individual, separate appliances that can be set up and operated, in particular, on a work surface in a kitchen unit. This can simplify flexibility of use as well as procurement and disposal.

[0006] In such cooking appliances, the closing element, such as a door that can be pivoted to the side or a flap that can be pivoted up from below, is operated manually by a person as the user, i.e. a handle, bracket or the like is grasped with the fingers of one hand and then moved or pivoted back and forth between the fully open state, in order to be able to access the cooking chamber as easily as possible, and the fully closed state in order to carry out the cooking process. This can also be achieved by means of a translational movement back and forth along the longitudinal axis, in which the closing element can be pulled out and pushed in. Mixed rotational-translational pivoting movements are also possible using suitable kinematics. In any case, intermediate positions are also possible, in order to open the cooking chamber only a crack, for example for ventilation or cooling after a cooking process.

[0007] To relieve the user of the burden of performing these movements between the fully open and fully closed states, it is also known to use a drive, particularly an electric drive, for this purpose. The pivoting movements described above are implemented by means of a motor, particularly an electric one, capable of rotational drive.

[0008] The rotational movement of the motor is either translated into a translational movement along the longitudinal axis by means of a crank, which can then pivot the closure element back and forth or open and closed around its rotational axis, comparable to the movement of the user's hand. This is shown, for example, in document EP 2 759 669 B1.

[0009] The rotational movement of the motor can also be transmitted by means of a cable pull, as disclosed in the documents EP 0 416 254 B1 and US 2023 084 696 A1.

[0010] The problem with cooking appliances of this type with a motor-driven closing element is that the access opening can only be opened and closed using the movable closing element using the drive or motor. Otherwise, the force applied by the user to open or close it is partially transferred to the stationary drive motor, which can lead to failure of the motor gear. Thus, because the movable closing element is directly connected to the motor, force is always transferred to the motor gear whenever the closing element is moved manually (in the event of misuse or when the device is de-energized). Impact loads can lead to failure of the drive gear. In addition, the user is always working manually against the motor, which can cause an unpleasant feeling and make you worry about whether this could damage or destroy the cooking appliance or its motor.This also applies to other household appliances.

[0011] The invention addresses the problem of providing a household appliance, preferably a cooking appliance, with a motor-driven closure element such that the closure element can still be moved or operated manually by the user without damaging the motor. At least one additional manual opening and closing in this sequence should be possible. In particular, the introduction of forces into the drive motor during manual movement of the movable closure element should be completely prevented. In particular, manual movement of the movable closure element should be possible when the household appliance is de-energized. In particular, manual and motor-driven movement of the movable closure element should be able to take place one after the other. In any case, this should be possible in a way that is as simple, space-saving, cost-effective and / or low-maintenance as possible.At least an alternative to the well-known household appliances of this kind should be created.

[0012] According to the invention, this problem is solved by a household appliance having the features of independent claim 1. Advantageous embodiments and further developments of the invention emerge from the following dependent claims.

[0013] Thus, the invention relates to a household appliance with an interior space which is designed to receive at least one object to be treated through an access opening along the longitudinal axis, with a closure element which is designed to close and open the access opening of the interior space from the front, preferably by pivoting by means of a pivoting element, preferably a hinge, and with a, preferably electric, motor which is designed to move the closure element back and forth between a position closing the access opening and a position opening the access opening.

[0014] The household appliance can be, in particular, a cooking appliance, but also another household appliance such as a washing machine, a dryer, or the like. In this case, the object to be treated can be laundry to be washed or dried. As a cooking appliance, this can be an oven, an oven with an integrated microwave, a microwave itself, a dialogue oven, a steam oven, a steam cooker, and the like. In this case, the object to be treated can be a food item to be cooked.

[0015] The household appliance is characterized in that the motor is fixedly connected to a clutch disc by means of a motor shaft in order to drive the clutch disc in rotation, wherein the clutch disc is connected to the closure element in a force-transmitting manner by means of a clutch bolt and a crank, wherein the clutch disc has a clutch-side guide contour which movably receives a first end of the clutch bolt, wherein the clutch-side guide contour of the clutch disc has: at least one first handrail guide, in which the first end of the coupling bolt is received and is moved translationally back and forth relative to the stationary coupling disc if a user manually moves the closure element back and forth between the position closing the access opening and the position releasing the access opening, and at least one first motor guide, in which the first end of the coupling bolt is received and is moved rotationally back and forth by the rotating coupling disc if the motor moves the closure element back and forth between the position closing the access opening and the position releasing the access opening, wherein the first motor guide is formed by one end of the first handrail guide.

[0016] The previously described "back and forth" movement refers at least to the previously explicitly mentioned movement with the locking element closed for opening and then back to the starting position for closing, which can be performed either manually or alternatively by motor. However, "back and forth" can also be understood as the opposite movement from the open locking element to opening and then closing. Preferably, both movement sequences are possible, as will be described in more detail below.

[0017] In any case, the combination of the first handrail guide and the first motor guide of a rotationally drivable clutch disc can enable the clutch bolt to execute the previously known motor movement of the locking element when the clutch disc rotates by the motor, preferably the electric motor. The first handrail guide provided in parallel can additionally enable the clutch bolt to move alternatively relative to the clutch disc along the first handrail guide when the clutch disc is stationary, i.e. when the preferably electric motor is stationary, and thus to allow movement of the locking element by manual actuation by the user, without the manual actuation by the user or without forces from the user being transmitted to or being able to act on the motor.

[0018] In other words, according to the invention, a bolt can be used to move along a specific contour. This contour includes at least one handrail and one motorized track. Because the force vector is translational for the handrail and rotational for the motorized track, a distinction can be made between the motorized track and the handrail.

[0019] Thus, according to the invention, the closure element can be opened and closed by means of the motor. In addition, however, the user can now also open and then close the closed closure element manually without acting on the motor, i.e., without applying any force to the motor. Alternatively, the reverse movement can also be performed manually.

[0020] Using a crank to transmit power between the clutch disc and the locking element can be a simple way to convert the rotary movement of the motor-driven clutch disc into a translatory movement, which can lead to the locking element being pivoted open and closed.

[0021] According to one aspect of the invention, the first handrail guide extends transversely, in particular in a straight line and at right angles, to the motor shaft. This can represent a possibility for implementing the previously described properties. This path also includes the path of the first handrail guide radially through the axis of the motor shaft.

[0022] According to the invention, the clutch-side guide contour of the clutch disc further comprises: at least one second handrail guide, in which the first end of the coupling bolt is received and is moved translationally back and forth relative to the stationary coupling disc if a user manually moves the closure element back and forth between the position releasing the access opening and the position closing the access opening, and at least one second motor guide, in which the first end of the coupling bolt is received and is moved rotationally back and forth by the rotating coupling disc if the motor moves the closure element back and forth between the position releasing the access opening and the position closing the access opening, wherein the second motorized guide is formed by one end of the second handrail guide, and wherein the first motorized guide and the second motorized guide merge into one another. As a result, both previously described back-and-forth movements can be implemented alternatively to one another or one after the other, as previously described. The user can thus also manually close and reopen an open closure element, or vice versa. However, each manual or motorized back-and-forth movement must be completed in order to subsequently perform one of the other three back-and-forth movements.

[0023] According to one embodiment, the second handrail guide runs transversely, preferably straight and at right angles, to the motor shaft. This allows the corresponding properties and advantages of the first handrail guide to be transferred to the second handrail guide. This path also encompasses the path of the first handrail guide.

[0024] One aspect is that the first handrail guide runs radially through the axis of the motor shaft.

[0025] According to one embodiment, the first handrail guide and the second motor guide intersect at right angles. This may represent a possible implementation.

[0026] According to one embodiment, the household appliance further comprises a fixed motor mount with a motor-side guide contour, which movably receives a second opposite end of the coupling bolt, wherein the motor-side guide contour of the motor mount comprises: at least one handrail guide in which the second end of the coupling bolt is received and moved at least substantially translationally back and forth relative to the motor mount if a user manually moves the closure element back and forth between the position closing the access opening and the position releasing the access opening, and at least one motor guide in which the second end of the coupling bolt is received and moved back and forth in an arc by the rotating clutch disc if the motor moves the closure element back and forth between the position closing the access opening and the position releasing the access opening, whereby the handrail guide and the motor guide of the fixed motor mount merge into each other at both ends of their runs.

[0027] This allows the creation of an additional guide contour that is fixed relative to the clutch disc, expanding the possibilities of the previously described movement sequence. In particular, this makes it possible to eliminate the need to complete the previously described back-and-forth movements to enable an alternative movement. Instead, each movement can be performed in one direction, completed, and then directly transition to one of the other movements. This can increase operating flexibility.

[0028] In other words, in this case, the user can, for example, open a closed closure element manually and then have it closed again by motor. As previously described, this would require the closure element to be manually closed again to assume a starting position for a motorized movement. This is no longer necessary due to the motor-side guide contour of the motor mount.

[0029] According to one embodiment, the handrail guide and the motor guide are separated from each other radially to the motor shaft by means of a separating element and run continuously around the separating element. This allows separate guidance of the at least substantially translational and arcuate movement, as the separating element prevents movement of the coupling bolt between the handrail guide and the motor guide, thus securely guiding the coupling bolt either in the handrail guide or in the motor guide. The movement of the coupling bolt around the separating element enables the coupling bolt to be exchanged between the handrail guide and the motor guide, but only at the end or beginning of the movement and not during the movement. The separating element prevents this.

[0030] According to one embodiment, the clutch-side guide contour of the clutch disc is designed to be repeated four times around the motor shaft. This can facilitate assembly, as the interaction of the guide contours can be achieved in different positions of the clutch disc on the motor shaft.

[0031] According to one embodiment, the clutch-side guide contour of the clutch disc is formed three times around the motor shaft, with the first motor guide and the second motor guide coinciding. This may represent an alternative implementation option.

[0032] According to one embodiment, the clutch-side guide contour of the clutch disc is formed twice around the motor shaft, with the first motor guide and the second motor guide coinciding. This may represent an alternative implementation option.

[0033] According to one embodiment, the handrail guides are curved and convex toward the motor shaft. This can represent a concrete way of implementing the triple-repeated contours.

[0034] According to one embodiment, the clutch-side guide contour of the clutch disc has: at least, preferably exactly, the first handrail guide, which preferably runs straight, at least, preferably exactly, the first motor guide, which runs semicircularly around the axis of the motor shaft, where the motor-side guide contour of the motor mount has: at least, preferably exactly, the handrail guide, which preferably runs in a straight line, at least, preferably exactly, the motor guide, which runs semicircularly around the axis of the motor shaft.

[0035] In particular, it can be provided that at least one of the handrail guides, preferably at least one handrail guide of the clutch disc and one handrail guide of the motor mount, extends radially through the axis of the motor shaft.

[0036] The key difference between this embodiment of the invention and the previous embodiments of the invention is that the same translational path is required to move the door locking element from one end position to the other. However, this path is no longer generated only for a rotation of the motor of 90 degrees or 120 degrees, but rather over a path of 180 degrees, since the two motor guides are each semicircular. This reduces the forces required to generate the respective movement and increases the time in which the locking element is moved.

[0037] Furthermore, the principle of a toggle lever can be used. This ensures that the force is not introduced linearly (as is the case with gears, for example), but is greatest in the two end positions, i.e. in the position closing the access opening and in the position releasing the access opening. As already mentioned, the use of a toggle lever is based on the idea that the most force is required to move the door locking element in the two end positions. Due to the planned length of the semi-circular motor guides, each 180 degrees, these operating points and therefore the points of movement where the toggle lever generates the most force and the most force is required to move the locking element, are located exactly one above the other, so that the maximum of the available force can be used there. Furthermore, the design of the semi-circular motor guides, each 180 degrees, makes it easier to hit and release the trigger.A safer transition of the bolt between the motor and handrail can be achieved, thus preventing possible blocking.

[0038] Another key difference between this embodiment and the preceding aspects of the invention can be seen in the fact that the motor drive has a freewheel in the form of a curved slot. This slot can allow the closure element to fall into the end positions, which can lead to an impression of a harmonious and high-quality movement of the closure element for the user.

[0039] According to one embodiment, the clutch-side guide contour of the clutch disc and the engine-side guide contour of the engine mount are congruent. This can represent a concrete implementation option. This can, in particular, simplify or ensure the desired interaction of the two guide contours.

[0040] According to one embodiment, the household appliance further comprises at least one spring element which is designed to substantially hold the closure element once a tilting point of a movement into the position releasing the access opening has been undershot, and further comprises a control unit which is designed to allow the motor to move the closure element during the movement into the position releasing the access opening only until the tilting point is reached and then to move the motor back into the previous position.

[0041] The two semicircular guide contours allow the control of the drive unit to be modified or redesigned so that the motor only needs to open the closure element until the closure element begins to fall on its own due to its own weight. This can occur at an angle of approximately 15 to 20 degrees from the vertical, i.e., starting from the position where the access opening is closed. The motor can then reverse its movement and return to the previous position, allowing a new movement sequence to begin.

[0042] As a result, the motor can be subjected to significantly less current over its lifetime than in the previously described aspects of the present invention, which can promote its longevity.

[0043] Furthermore, the fact that the locking element only needs to be "nudged open" by the motor and no longer needs to be driven open prevents cases of misuse caused by a person interfering with the motorized movement of the locking element. For example, if a person were to block the locking element during an opening process after an opening angle of 15 degrees, no force would be transmitted to the motor, as the locking element would then already be in freewheel mode. This prevents the person from exerting direct force on the motor or the transmission, thus protecting the motor and transmission.

[0044] According to one embodiment, the household appliance further comprises at least one spring element which is designed to close the closure element upon exceeding a closing point of a movement into the position closing the access opening, and further comprises a control unit which is designed to allow the motor to move the closure element during the movement into the position closing the access opening only until the closing point is reached and then to move the motor back into the previous position.

[0045] Compared to the previous aspect of the invention, the motor can thus only move the locking element sufficiently far during closing, for example, up to 75 degrees but not up to 90 degrees. The final part of the closing movement, for example, 15 degrees, can then be achieved by the locking element being pulled by the springs in the hinge, so that a harmonious movement can also be achieved during closing.

[0046] According to one embodiment, the handrail guide and the motor guide of the motor-side guide contour of the motor mount are separated from each other radially to the motor shaft by means of a separating element of the motor-side guide contour of the motor mount and run continuously around the separating element, and the first handrail guide and the first motor guide of the clutch-side guide contour of the clutch disc are separated from each other radially to the motor shaft by means of a separating element of the clutch-side guide contour of the clutch disc and run continuously around the separating element.

[0047] As already described in connection with a comparable previous aspect of the invention, this allows for separate guidance of the translational and semicircular or arcuate movements, as the separating element prevents movement of the coupling pin between the respective handrail guide and motor guide, thus securely guiding the coupling pin either in the handrail guide or in the motor guide. The movement of the coupling pin around the separating element enables the coupling pin to be switched between the handrail guide and the motor guide, but only at the end or beginning of the movements and not during the movement. The separating element prevents this.

[0048] One aspect is that the course of a handrail guide, described as being straight and perpendicular to the motor shaft, is to be understood in particular as meaning that the handrail guide is aligned parallel to a plane in which the motor shaft lies. Several embodiments of the invention are shown purely schematically in the drawings and are described in more detail below. Figure 1 shows a perspective view of a household appliance according to the invention in the form of a cooking appliance with an open access opening, viewed diagonally from the front above; Figure 2 shows a side view with a partial longitudinal section of or through a connecting kinematics with an electric motor and clutch disc according to a first embodiment; Figure 3 shows the connecting kinematics with an electric motor and clutch disc of the Figure 2 in the position closing the access opening; Figure 4 shows the Figure 3in the position releasing the access opening as a result of a manual opening by a user along a handrail direction; Figure 5 shows the representation of the Figure 4 back into the position closing the access opening as a result of a manual closing of the user along a handrail direction; Figure 6 the representation of the Figure 5 in the position releasing the access opening as a result of a motor opening of the electric motor along a motor running direction; Figure 7 the representation of the Figure 6 with the coupling bolt falling into the second handrail guide and second motor guide; Figure 8 shows the Figure 7 in the position closing the access opening as a result of the user's manual closing along the handrail direction; Figure 9 shows the representation of the Figure 8back in the position releasing the access opening as a result of the user's manual opening along the handrail direction; Figure 10 the representation of the Figure 9 back into the position closing the access opening as a result of a motor closing of the electric motor along the motor running direction; Figure 11 the representation of the Figure 10 with the coupling bolt falling into the first handrail guide and first motor guide; Figure 12 a plan view with partial longitudinal section of or through a connecting kinematics with coupling disc and motor mount according to a second embodiment; Figure 13 a side view of the coupling disc of the Figure 12 with coupling-side guide contour; Figure 14 a side view of the motor mount of the Figure 12 with motor-side guide contour; Figure 15 the connection kinematics with clutch disc and motor mount of the Figure 12in the position closing the access opening; Figure 16 the clutch disc in a rotary movement of a motorized opening into the position releasing the access opening starting from the closing position of the Figure 15 ; Figure 17 the clutch disc in the position releasing the access opening as a result of the motor opening of the electric motor along the motor running direction of the Figure 16 ; Figure 18 the representation of the Figure 17 with the coupling bolt falling into the second handrail guide and second motor guide; Figure 19 the coupling disc in a translatory movement of a manual closing of the user into the position closing the access opening starting from the releasing position of the Figure 18 ; Figure 20 the clutch disc in the position closing the access opening as a result of the user's manual closing along the handrail direction of the Figure 19; Figure 21 a side view of an alternative clutch disc of the Figure 12 with clutch-side guide contour; Figure 22 a side view of another alternative clutch disc of the Figure 12 with clutch-side guide contour; Figure 23 a side view of a clutch disc with clutch-side guide contour according to a third embodiment; Figure 24 a side view of a corresponding engine mount with engine-side guide contour according to the third embodiment; Figure 25 the coupling bolt of the connecting kinematics with clutch disc and engine mount according to the third embodiment in the position closing the access opening; Figure 26 the clutch disc in a rotational movement of a motor-driven opening into the position releasing the access opening, starting from the closing position of the Figure 25 ; Figure 27 the representation of the Figure 26with the clutch disc moving into the initial position; Figure 28 the clutch disc in the position releasing the access opening as a result of the motor-driven opening of the electric motor along the motor running direction of the Figures 26 and 27 ; Figure 29 the clutch disc in a rotary movement of a motorized closing into the position closing the access opening starting from the releasing position of the Figure 28 ; Figure 30 the representation of the Figure 29 with the clutch disc moving into the initial position; Figure 31 the clutch disc in the position closing the access opening as a result of the motor-driven closing of the electric motor along the motor running direction of the Figures 29 and 30 ; Figure 32 the clutch disc in a translational movement of a manual opening by a person into the position releasing the access opening starting from the closing position of the Figure 31; Figure 33 the clutch disc in the position releasing the access opening as a result of manual opening by the person along the handrail direction of the Figure 32 ; and Figure 34 the clutch disc in a translatory movement of a manual closing by a person into the position closing the access opening starting from the releasing position of the Figure 33 .

[0049] The figures above are viewed in Cartesian coordinates. There is a longitudinal axis X, which can also be referred to as depth X or length X. Perpendicular to the longitudinal axis X extends a transverse axis Y, which can also be referred to as width Y. Perpendicular to both the longitudinal axis X and the transverse axis Y extends a vertical axis Z, which can also be referred to as height Z and corresponds to the direction of gravity. The longitudinal axis X and the transverse axis Y together form the horizontal X, Y, which can also be referred to as the horizontal plane X, Y.

[0050] Figure 1 shows a perspective view of a household appliance 1 according to the invention in the form of a cooking appliance 1 with open access opening 13 from diagonally above the front.

[0051] A household appliance 1 or cooking appliance 1 according to the invention is considered using the example of an oven 1. The oven 1 has an outer housing 10, which can also be referred to as an outer housing 10 and which essentially closes off or encloses the oven 1 to the outside. The outer housing 10 closes off along the longitudinal axis X to the front, i.e. towards the user, in the upper area with a panel 10a. Arranged within the outer housing 10 is an inner housing 11, which can also be referred to as an inner housing 11. The inner housing 11 closes off with the outer housing 10 along the longitudinal axis X to the rear, along the vertical axis Z downwards and upwards, and along the transverse axis Y on both sides, so that an intermediate space is formed between the outer housing 10 and the inner housing 11, which intermediate space can also be referred to as the housing space. This intermediate space represents the interior of the oven 1.

[0052] The inner housing 11 also essentially encloses an interior space 12 in which a cooking process can be carried out. For this purpose, corresponding elements for heating the interior space 12 (not shown) are arranged in the intermediate space or in the cooking chamber 12. Accordingly, the interior space 12 can also be referred to as the cooking chamber 12.

[0053] The cooking chamber 12 is accessible to the user from the front along the longitudinal axis X through an access opening 13, which is located below the panel 10a. The access opening 13 can be closed and opened by means of a closure element 14 in the form of a flap 13. For this purpose, the flap 14 is connected to the outer casing 10 of the oven 1 by means of at least one hinge (not shown) so as to be pivotable upwards about the transverse axis Y, so that the flap 14 can be pivoted upwards away from the user to close the access opening 13, and can be pivoted downwards towards the user to release the access opening 13 and to access the cooking chamber 12, see Figure 1 .

[0054] The cooking chamber 12 has a side wall 12a on each side along the transverse axis Y, on each of which a removable support grid 15 is arranged. A telescopic rail 16 is removably attached to each support grid 15 at the same height along the vertical axis Z, which together form a pair of telescopic rails 16. The telescopic rails 16 are each designed in three parts along the longitudinal axis X (not shown), so that a front rail element is connected to a rear rail element of the telescopic rail 16 by means of a middle rail element, wherein the rear rail element is held fixedly and removably on the respective support grid 15.

[0055] A cooking utensil, such as a baking tray (not shown), can be placed by the user onto the pair of telescopic rails 16 or their front rail elements in order to be pushed into and pulled out of the cooking chamber 12 along the longitudinal axis X. This can make it easier for the user to insert the baking tray into and remove it from the cooking chamber 12.

[0056] Figure 2 shows a side view with partial longitudinal section of or through a connecting kinematics 17 with electric motor 18 and clutch disc 19 according to a first embodiment.

[0057] The connecting kinematics 17 with electric motor 18 and coupling disc 19 is arranged laterally in the space between the oven 1 and can be used by the user to operate the flap 14 as a closing element 14 by motor, so that the user does not have to do this himself. The motorized movement, in particular for opening the closed flap 14 and then closing the open flap 14 again, cf. Figure 1 , can be carried out by the user in particular by actuating a corresponding operating element (not shown), which can be arranged on the outside of the flap 14 (not shown) and / or on the panel 10a (not shown).

[0058] To guide the connecting kinematics 17, the outer housing 10 has a guide element 10b on the inside, which points upwards along the vertical direction Z and has a through-opening (not shown) along the longitudinal axis X. Facing the user along the longitudinal axis X, a closure element connection 14a, also called a blade 14a, is pivotably arranged on the front edge of the outer housing 10. The closure element 14 or the flap 14 (not shown, cf. Figure 1 ) is fixedly mounted on the closure element connection 14a and can therefore be pivoted.

[0059] In the rear region along the longitudinal axis X above the outer housing 10 or its underside (not labeled), the aforementioned electric motor 18 is fixedly arranged by means of a motor mount 18b. In the case of the first exemplary embodiment, the motor mount 18b represents a disk which is fixedly arranged on the underside of the outer housing 10 in the intermediate space and has a through-opening (not labeled) through which a motor shaft 18a protrudes. The electric motor 18 is fixedly arranged on one side of the disk-like motor mount 18b, so that the rotor (not shown) of the electric motor 18 can drive the motor shaft 18a, which protrudes from the electric motor 18 through the through-opening of the disk-like motor mount 18b to the opposite side.There, the clutch disc 19 already mentioned is arranged fixedly on the motor shaft 18a, so that the clutch disc 19 can be driven in rotation by the electric motor 18.

[0060] The side of the clutch disc 19 facing away from the disc-like engine mount 18b has a clutch-side guide contour 19a, which is Figures 3 to 11 will be described in more detail below. A coupling pin 17a engages with a first end into the coupling-side guide contour 19a, so that a positive connection exists between the first end of the coupling pin 17a and the clutch disc 19, which can transmit the power from the electric motor 18 to the coupling pin 17a.

[0061] The coupling pin 17a is rotatably mounted in a corresponding through-opening (not designated) of one end of a crank 17b, which is rotatably connected at the opposite end to a guide rod 17c that is translationally movable along the longitudinal axis X and guided by the through-opening of the aforementioned guide element 10b of the outer housing 10. The opposite end of the guide rod 17c is connected to the closure element connection 14a by means of a connecting element 17d in order to pivot it back and forth as previously mentioned.

[0062] If the electric motor 18 is now operated and its rotational movement is thereby transmitted to the closure element connection 14a, as previously known, the flap 14 can, as already mentioned, be moved back and forth by motor between a position closing the access opening 13 and a position releasing the access opening 13. According to the invention, the rotational movement of the electric motor 18 can be converted into a translational movement by means of the coupling disc 19, the coupling pin 17a, and the crank 17b, which can pivot the flap 14 open and closed.

[0063] According to the invention, furthermore, according to the first embodiment, a first handrail guide 19b of the clutch disc 19 and a second handrail guide 19c of the clutch disc 19 are provided as components of the clutch-side guide contour 19a, see e.g. Figure 3, which are each formed in a straight line and at right angles to the motor shaft 18a and intersect at right angles. The closely spaced ends of the two handrail guides 19a, 19b represent a first motor guide 19d of the clutch disc 19 and a second motor guide 19e of the clutch disc 19.

[0064] The first end of the coupling pin 17a is always movably received or guided by the clutch-side guide contour 19a, so that the rotational movement of the clutch disc 19 can be transmitted to the coupling pin 17a if the coupling pin 17a is located in one of the two engine guides 19d, 19e.

[0065] At the same time, however, the invention also allows the coupling pin 17a to be moved translationally along one of the two handrail guides 19a, 19b of the stationary, i.e., non-motor-driven, coupling disc 19 if the user manually swings the flap 14 open and closed. In this case, the force of the user's manual movement is not transferred to the stationary electric motor 18, so that the motor 18 cannot be damaged by the user's manual movements.

[0066] Specifically, according to the first embodiment, the following movements of the oven 1 or its flap 14 can take place: Figure 3 shows the connection kinematics 17 with electric motor 18 and clutch disc 19 of the Figure 2in the position closing the access opening 13. The first end of the coupling pin 17a is located in the first motor guide 19d of the coupling disc 19 at the end of the first handrail guide 19b of the coupling disc 19.

[0067] Now the flap 14 is opened manually by the user by pulling or by pushing it down, whereby the pivoting movement of the flap 14 is transmitted via the connecting kinematics 17 to the coupling bolt 17a, which, when the coupling disc 19 is stationary, slides along the first handrail guide 19b of the coupling disc 19 to its end opposite the first motor guide 19d of the coupling disc 19. Accordingly, Figure 4 the representation of the Figure 3 in the position releasing the access opening 13 as a result of a manual opening by a user along a handrail direction A.

[0068] In this configuration, movement of the electric motor 18 is not possible. Accordingly, the user must manually close or swing up the flap 14, whereby the coupling pin 17a is moved in the handrail direction A along the first handrail guide 19b of the coupling disc 19 back into the first motor guide 19d of the coupling disc 19. Accordingly, Figure 5 the representation of the Figure 4 back into the position closing the access opening 13 as a result of a manual closing by the user along a handrail direction A.

[0069] Now, the electric motor 18 can open the flap 14 by rotating the clutch disc 18 approximately 90° counterclockwise. The clutch pin 17a is rotated by the first motor guide 19d of the clutch disc 19, and the corresponding movement is transmitted to the flap 14 by means of the crank 17b, as described above. Accordingly, Figure 6 the representation of the Figure 5 in the position releasing the access opening 13 as a result of a motorized opening of the electric motor 18 along a motor running direction B.

[0070] When the motor-operated flap 14 is in the position where it is opened, the coupling pin 17a falls into the second motor guide 19e with a falling movement C due to gravity. Accordingly, Figure 7 the representation of the Figure 6 with the coupling bolt 17c falling down into the second handrail guide 19c and second motor guide 19e.

[0071] Thus, the flap 14 can also be manually closed by the user from the open position. In this case, the coupling pin 17a is moved along the handrail direction A in the second handrail guide 19c to its opposite end. Figure 8 the representation of the Figure 7 in the position closing the access opening 13 as a result of the user's manual closing along the handrail direction A.

[0072] If the user then opens the flap 14 again, this leads to the constellation of Figure 9 , which the representation of the Figure 8 again in the position releasing the access opening 13 as a result of the user's manual opening along the handrail direction A.

[0073] From the constellation of Figures 7 or 9 The flap 14 can be closed again by means of the electric motor 18, so that the Figure 10the representation of the Figure 9 again in the position closing the access opening 13 as a result of a motor closing of the electric motor 18 along the motor running direction B.

[0074] Once there, the coupling bolt 17a can fall back into the first motor guide 19d of the clutch disc 19 by means of gravity with a falling movement C, whereby the initial constellation of the Figure 3 is reached again. Figure 11 thus shows the representation of the Figure 10 with the coupling bolt 17a falling down into the first handrail guide 19b and first motor guide 19d.

[0075] Figure 12 shows a plan view with partial longitudinal section of or through a connecting kinematics 17 with clutch disc 19 and engine mount 18b according to a second embodiment. Figure 13 shows a side view of the clutch disc 19 of the Figure 12 with coupling-side guide contour 19a. Figure 14shows a side view of the motor mount 18b of the Figure 12 with motor-side guide contour 18c.

[0076] In this second embodiment, the coupling-side guide contour 19a is configured to repeat on four sides around the motor shaft 18a. The arrangement of the handrail guides 19b, 19d and the motor guides 19c, 19e essentially corresponds to the first embodiment.

[0077] In this case of the second embodiment, however, the motor guide 18b is extended by a second disc, so that the two discs (not designated) of the motor guide 18b accommodate the clutch disc 19 and the end of the crank 17b with the clutch bolt 17a between them ( Figure 12shows only the disc of the motor guide 18b with the motor-side guide contour 18c). The coupling pin 17a is extended so that a second end of the coupling pin 17a, opposite the first end, engages in the motor-side guide contour 18c of the second disc of the motor guide 18b, see Figure 12 , and can be conducted there.

[0078] The motor-side guide contour 18c of the motor guide 18b has a substantially rectilinear handrail guide 18d and a curved motor guide 18e, which are separated or spaced apart from each other by a separating element 18f, also referred to as a brake 18f. The handrail guide 18d and the motor guide 18e of the motor mount 18b merge into one another at the ends and thus jointly enclose the separating element 18f, see FIG. Figure 14 .

[0079] According to the second embodiment, the movement sequence of the first embodiment can now be expanded as follows to include the possibility of executing both a manual and a motorized movement into the respective other position in both the fully open and fully closed positions of the flap 14. This is made possible by the motor-side guide contour 18c of the motor guide 18b, since there are two parallel paths available to reach the respective other position.

[0080] Figure 15 shows the connection kinematics 17 with clutch disc 19 and engine mount 18b of the Figure 12 in the position closing the access opening. As described with reference to the Figure 3As described in the first embodiment, in this configuration the first end of the coupling bolt 17a is located in the first motor guide 19d of the coupling disc 19 at the end of the first handrail guide 19b of the coupling disc 19. At the same time the second end of the coupling bolt 17a is now located at both the one end of the handrail guide 18d and the motor guide 18e of the motor mount 18b.

[0081] If the motor 18 is operated to open the flap 14 by motor and thereby moves the clutch disc 19 counterclockwise along the motor rotation direction B, the clutch bolt 17a is moved as previously described and thereby pivots the flap 14 downwards. Figure 16 the clutch disc 19 in a rotary movement of a motorized opening into the position releasing the access opening 13 starting from the closing position of the Figure 15The second end of the coupling bolt 17a passes through the handrail guide 18d of the motor mount 18b.

[0082] At the end of this movement, the flap 14 is open, ie swung down. Accordingly, Figure 17 the clutch disc 19 in the position releasing the access opening 13 as a result of the motorized opening of the electric motor 18 along the motor running direction B of the Figure 16 .

[0083] When the motor-operated flap 14 is in the position where it is opened, the coupling bolt 17a also falls into the second handrail guide 19c and the second motor guide 19e of the coupling disc 19 due to gravity with the falling movement C. The second end of the coupling bolt 17a is then located at both the other end of the handrail guide 18d and the motor guide 18e of the motor mount 18b. Figure 18 the representation of the Figure 17with the coupling bolt 17a falling down into the second handrail guide 19c and second motor guide 19e.

[0084] In contrast to the first embodiment, the constellation of Figure 18 From there, a manual movement of the flap 14 can now be carried out directly, since the coupling bolt 17a can be moved both in the second motor guide 19e of the coupling disc 19, held by the electric motor 18, in a rotational manner along the motor guide 18e of the motor mount 18b, and manually in the second handrail guide 19c of the coupling disc 19 along the handrail guide 18d of the motor mount 18b back into the position of the closed flap 14. The second case shows Figure 19 with the clutch disc 19 in a translational movement of a manual closing of the user into the position closing the access opening 13 starting from the releasing position of the Figure 18 . Figure 20shows the clutch disc 19 in the position closing the access opening 13 as a result of the user manually closing it along the handrail direction A of the Figure 19 .

[0085] Figure 21 shows a side view of an alternative clutch disc 19 of the Figure 12 with coupling-side guide contour 19a.

[0086] Figure 22 shows a side view of another alternative clutch disc 19 of the Figure 12 with coupling-side guide contour 19a.

[0087] Figure 23 shows a side view of a clutch disc 19 with clutch-side guide contour 19a according to a third embodiment. Figure 24 shows a side view of a corresponding motor mount 18b with motor-side guide contour 18c according to the third embodiment.

[0088] According to the third embodiment, the clutch-side guide contour 19a of the clutch disc 19 has the first handrail guide 19b, which extends radially through the axis of the motor shaft 18a, and the first motor guide 19d, which extends semicircularly around the axis of the motor shaft 18a. The first handrail guide 19b and the first motor guide 19d of the clutch-side guide contour 19a of the clutch disc 19 merge into one another.

[0089] The motor-side guide contour 18c of the motor mount 18b has the handrail guide 18b, which extends radially through the axis of the motor shaft 18a, and the motor guide 18e, which extends semicircularly around the axis of the motor shaft 18a. The handrail guide 18b and the motor guide 18e of the motor-side guide contour 18c of the motor mount 18b merge into one another.

[0090] The clutch-side guide contour 19a of the clutch disc 19 and the engine-side guide contour 18c of the engine mount 18b are congruent.

[0091] The handrail guide 18d and the motor guide 18e of the motor-side guide contour 18c of the motor mount 18b are separated from each other radially to the motor shaft 18a by a separating element 18f of the motor-side guide contour 18c of the motor mount 18b and extend continuously around the separating element 18f. Likewise, the first handrail guide 19b and the first motor guide 19d of the clutch-side guide contour 19a of the clutch disc 19 are separated from each other radially to the motor shaft 18a by a separating element 19f of the clutch-side guide contour 19a of the clutch disc 19 and extend continuously around the separating element 19f.

[0092] Furthermore, the household appliance comprises a spring element designed to substantially hold the closure element 14 in place once a movement into the position releasing the access opening 13 falls below a tipping point. Furthermore, the household appliance comprises a control unit (not shown) designed to allow the motor 18 to move the closure element 14 during the movement into the position releasing the access opening 13 only until the tipping point is reached and then to return the motor 18 to the previous position.

[0093] Likewise, the household appliance has a spring element which is designed to close the closure element 14 once a closing point of a movement into the position closing the access opening 13 is exceeded, and the control unit is further designed to allow the motor 18 to move the closure element 14 during the movement into the position closing the access opening 13 only until the closing point is reached and then to move the motor 18 back into the previous position.

[0094] The motorized and manual opening and closing of the closure element 14 of the household appliance 1 can now be carried out as follows according to the third embodiment: Figure 25 shows the coupling bolt 17a of the connecting kinematics 17 with clutch disc 19 and motor mount 18b according to the third embodiment in the position closing the access opening 13.

[0095] The motor-side guide contour 18c and the clutch-side guide contour 19a are congruent. The coupling pin 17a is positioned to the right along the longitudinal axis X, or to the rear from the perspective of the connection kinematics 17. The closure element 14 is thus in the position closing the access opening 13.

[0096] Figure 26 shows the clutch disc 19 in a rotary movement B of a motorized opening into the position releasing the access opening 14 starting from the closing position of the Figure 25 .

[0097] Thus, the motor 18 is now controlled by the control unit according to the illustration of the Figure 26operated counterclockwise to the left, so that the clutch disc 19 is rotated accordingly. The clutch disc 19 or its clutch-side guide contour 19a carries the clutch pin 17a along the engine-side guide contour 18c, so that the clutch pin 17a is moved in a semi-circular manner in the engine running direction B in the overlapping or superimposed engine guides 18e of the engine mount 18b and the engine guide 19d of the clutch disc 19.

[0098] Figure 27 shows the representation of the Figure 26 with clutch disc 19 moving to its initial position.

[0099] If the movement of the coupling bolt 18b falls below the Figure 26Namely, the previously mentioned tipping point, which is approximately 15 to 20 degrees of the semi-circular movement, is reached, so gravity is sufficient to open the closure element further and move it completely into the position that exposes the access opening 14. Thanks to the spring element, this occurs in such a damped manner that a uniform movement is created. Accordingly, however, the remaining movement can be performed without the motor 18, so that the motor 18 is moved back to its previous position as the starting position in the motor running direction B as soon as the tipping point is reached.

[0100] Figure 28 shows the clutch disc 19 in the position releasing the access opening 14 as a result of the motorized opening of the electric motor 18 along the motor running direction B of the Figures 26 and 27 . Now the access opening 14 is open and the user can access the interior 12 of the household appliance 1.

[0101] Figure 29 shows the clutch disc 19 in a rotary movement of a motorized closing into the position closing the access opening starting from the releasing position of the Figure 28 .

[0102] Now the clutch disc 19 is rotated by the motor 18 in the motor running direction B, rotating clockwise, so that the clutch bolt 17a is again moved in a semi-circular manner in the overlapping or superimposed motor running guides 18e of the motor mount 18b and motor running guide 19d of the clutch disc 19.

[0103] Figure 30 shows the representation of the Figure 29with the clutch disc 19 moving to its initial position. In this case, too, the motor 18 can return the clutch disc 19 to its previous initial position if the remaining movement can be performed without the motor 18. This occurs when a closing point is exceeded at approximately 75 degrees of the movement already completed, i.e., with only approximately 15 degrees of movement remaining, since a spring element can then also act and pull the locking element into the position closing the access opening.

[0104] Figure 31 shows the clutch disc 19 in the position closing the access opening 14 as a result of the motor closing of the electric motor 18 along the motor running direction B of the Figures 29 and 30 . The access opening 14 is then closed again.

[0105] Figure 32shows the clutch disc 19 in a translatory movement of a manual opening by a person into the position releasing the access opening 14 starting from the closing position of the Figure 31 In this case, the user pulls the locking element 14 towards themselves by hand or pivots the locking element 14 towards themselves, whereby the connecting kinematics 17 is moved essentially along the longitudinal axis X. As a result, the coupling pin 17a is also moved along the longitudinal axis X, which is possible purely translationally in a handrail direction A due to the linear handrail guide 18d of the motor mount 18b and the congruent linear handrail guide 19b of the coupling disc 19.

[0106] Figure 33 shows the clutch disc 19 in the position releasing the access opening 14 as a result of the manual opening by the person along the handrail direction A of the Figure 32. According to the previously described translational movement, the coupling pin 17a reaches the other end of the congruent handrail guide 18d of the motor mount 18b and the linear handrail guide 19b of the coupling disc 19.

[0107] Figure 34 shows the clutch disc 19 in a translatory movement of a manual closing by a person into the position closing the access opening 14 starting from the releasing position of the Figure 33 The previously described process can also be performed in reverse by the person in order to manually close the access opening 14 again.

[0108] Once the coupling pin 17a has reached one or the other end of the translational movement or the rotational movement, the next movement can be carried out both manually and motor-driven, so that any combination of movements as previously described is possible. List of reference symbols (part of the description)

[0109] AHandrail direction BMotor running direction CFalling movement of the coupling bolt 17a XLongitudinal axis; depth; length YTransverse axis; width Zvertical axis; height X, YHorizontal; horizontal plane 1Household appliance; cooking appliance; oven 10Outer casing; outer casing 10aPanel 10bGuide element 11Inner casing; inner casing 12Interior; cooking chamber 12aSide walls of the cooking chamber 12 13Access opening 14Closing element; flap 14aClosing element connection; Sword 15Supporting grid 16Telescopic rails 17Connecting kinematics 17aCoupling bolt 17bCrank 17cGuide rod 17dConnecting element 18(electric) motor 18aMotor shaft 18bMotor mount 18cMotor-side guide contour 18dHandrail guide of the motor mount 18b 18eMotor guide of the motor mount 18b 18fSeparating element or; Brake of the motor-side guide contour 18c 19Clutch disc 19aClutch-side guide contour 19First handrail guide of the clutch disc 19 19czSecond handrail guide of the clutch disc 19 19derFirst motor guide of the clutch disc 19 19ezSecond motor guide of the clutch disc 19 19fSeparating element or; Brake of the clutch-side guide contour 19a.

Claims

1. Domestic appliance (1), preferably a cooking appliance (1), comprising an interior space (12) which is designed to receive at least one object to be treated through an access opening (13) along the longitudinal axis (X), comprising a closure element (14) which is designed to close and open the access opening (13) of the interior space (12) from the front, preferably by pivoting by means of a pivoting element, preferably a hinge, and comprising a preferably electric motor (18) which is designed to move the closure element (14) back and forth between a position that closes the access opening (13) and a position that opens the access opening (13), the motor (18) being fixedly connected to a coupling disc (19) by means of a motor shaft (18a) in order to drive the coupling disc (19) in rotation, the coupling disc (19) being connected to the closure element (14) by means of a coupling bolt (17a) in a force-transmitting manner, the coupling disc (19) comprising a coupling-side guide contour (19a) which movably receives a first end of the coupling bolt (17a), the coupling-side guide contour (19a) of the coupling disc (19) comprising: • at least a first manual-operation guide (19b) in which the first end of the coupling bolt (17a) is received and is moved translationally back and forth relative to the stationary coupling disc (19) if a user manually moves the closure element (14) back and forth between the position that closes the access opening (13) and the position that opens the access opening (13), and • at least a first motor-operation guide (19d) in which the first end of the coupling bolt (17a) is received and is moved back and forth in rotation by the rotating coupling disc (19) if the motor (18) moves the closure element (14) by motor, the first motor-operation guide (19d) being formed by one end of the first manual-operation guide (19b), characterised in that the coupling disc is connected to the closure element in a force-transmitting manner by means of a crank (17b), and the motorised movement of the closure element taking place back and forth between the position that closes the access opening (13) and the position that opens the access opening (13).

2. Domestic appliance (1) according to claim 1, wherein the first manual-operation guide (19b) runs transversely, in particular straight and at right angles, with respect to the motor shaft (18a).

3. Domestic appliance (1) according to claim 1 or claim 2, wherein the coupling-side guide contour (19a) of the coupling disc (19) further comprises: • at least a second manual-operation guide (19c) in which the first end of the coupling bolt (17a) is received and is moved translationally back and forth relative to the stationary coupling disc (19) if a user manually moves the closure element (14) back and forth between the position that opens the access opening (13) and the position that closes the access opening (13), and • at least a second motor-operation guide (19e) in which the first end of the coupling bolt (17a) is received and is moved back and forth in rotation by the rotating coupling disc (19) if the motor (18) moves the closure element (14) by motor back and forth between the position that opens the access opening (13) and the position that closes the access opening (13), wherein the second motor-operation guide (19e) is formed by one end of the second manual-operation guide (19c) and wherein the first motor-operation guide (19d) and the second motor-operation guide (19e) merge into one another.

4. Domestic appliance (1) according to claim 3, wherein the second manual-operation guide (19c) runs transversely, in particular straight and at right angles, with respect to the motor shaft (18a).

5. Domestic appliance (1) according to claim 3 or claim 4, wherein the first manual-operation guide (19b) and the second motor-operation guide (19e) intersect at right angles.

6. Domestic appliance (1) according to any of the preceding claims, further comprising a fixed motor mount (18b) having a motor-side guide contour (18c) which movably receives a second opposing end of the coupling bolt (17a), wherein the motor-side guide contour (18c) of the motor mount (18b) comprises: • at least one manual-operation guide (18d) in which the second end of the coupling bolt (17a) is received and is moved at least substantially translationally back and forth relative to the motor mount (18b) if a user manually moves the closure element (14) back and forth between the position that closes the access opening (13) and the position that opens the access opening (13), and • at least one motor-operation guide (18e) in which the second end of the coupling bolt (17a) is received and is moved back and forth in an arc by the rotating coupling disc (19) if the motor (18) moves the closure element (14) by motor back and forth between the position that closes the access opening (13) and the position that opens the access opening (13), wherein the manual-operation guide (18d) and the motor-operation guide (18e) of the fixed motor mount (18b) merge into one another at both ends of their paths.

7. Domestic appliance (1) according to claim 6, wherein the manual-operation guide (18d) and the motor-operation guide (18e) are separated from one another radially with respect to the motor shaft (18a) by means of a separating element (18f) and run continuously around the separating element (18f).

8. Domestic appliance (1) according to claim 6 or claim 7, wherein the coupling-side guide contour (19a) of the coupling disc (19) is formed in a fourfold repeating manner around the motor shaft (18a).

9. Domestic appliance (1) according to claim 6 or claim 7, wherein the coupling-side guide contour (19a) of the coupling disc (19) is formed in a threefold repeating manner around the motor shaft (18a), wherein the first motor-operation guide (19d) and the second motor-operation guide (19e) coincide.

10. Domestic appliance (1) according to claim 9, wherein the manual-operation guides (19b, 19c) run transversely, in particular arcuately and convexly, with respect to the motor shaft (18a).

11. Domestic appliance (1) according to claim 6, wherein the coupling-side guide contour (19a) of the coupling disc (19) comprises: • at least, preferably exactly, the first manual-operation guide (19b), which runs straight, • at least, preferably exactly, the first motor-operation guide (19d), which runs semicircularly around the axis of the motor shaft (18a), wherein the motor-side guide contour (18c) of the motor mount (18b) comprises: • at least, preferably exactly, the manual-operation guide (18b), which runs straight, • at least, preferably exactly, the motor-operation guide (18e), which runs semicircularly around the axis of the motor shaft (18a).

12. Domestic appliance (1) according to claim 11, wherein the coupling-side guide contour (19a) of the coupling disc (19) and the motor-side guide contour (18c) of the motor mount (18b) are congruent.

13. Domestic appliance (1) according to one of the two preceding claims, wherein at least one of the manual-operation guides (18b, 19b) runs radially through the axis of the motor shaft (18a).

14. Domestic appliance (1) according to claim 11 or claim 12, further comprising at least one spring element which is designed to substantially hold the closure element (14) upon falling below a tipping point of a movement into the position that opens the access opening (13), and further comprising a control unit which is designed to allow the motor (18) to move the closure element (14) during the movement into the position that opens the access opening (13) only until the tipping point is reached and then to move the motor (18) back into the previous position.

15. Domestic appliance (1) according to any of claims 11 to 13, further comprising at least one spring element which is designed to close the closure element (14) upon exceeding a closing point of a movement into the position that closes the access opening (13), and further comprising a control unit which is designed to allow the motor (18) to move the closure element (14) during the movement into the position that closes the access opening (13) only until the closing point is reached and then to move the motor (18) back into the previous position.

16. Domestic appliance (1) according to any of claims 11 to 14, wherein the manual-operation guide (18d) and the motor-operation guide (18e) of the motor-side guide contour (18c) of the motor mount (18b) are separated from one another radially with respect to the motor shaft (18a) by means of a separating element (18f) of the motor-side guide contour (18c) of the motor mount (18b) and run continuously around the separating element (18f), and wherein the first manual-operation guide (19b) and the first motor-operation guide (19d) of the coupling-side guide contour (19a) of the coupling disc (19) are separated from one another radially with respect to the motor shaft (18a) by means of a separating element (19f) of the coupling-side guide contour (19a) of the coupling disc (19) and run continuously around the separating element (19f).

Images