Arrangement comprising fixed furniture part, movable furniture part, guide device and electric drive device

Abstract

The invention relates to an arrangement comprising: a stationary furniture part (1), in particular a furniture body; a furniture part (2), in particular a drawer, movable relative to the fixed furniture part (1); the invention relates to a guide device (3), in particular a drawer pull-out guide, for guiding a movable furniture part (2) relative to a fixed furniture part (1), and at least one electric drive (6) for at least partially automatic movement of the movable furniture part (2) relative to the fixed furniture part (1), comprising an electric motor (7) which can be supplied in particular at 230 V, the guide device (3) comprises at least one main guide rail (4) arranged on the fixed furniture part (1) and at least one support guide rail (5) arranged on the movable furniture part (2), the at least one support guide rail (5) comprising at least one first interface (34). The at least one first interface is suitable for fixing an ejection device (11) and / or a pull-in device (8) on the at least one supporting guide rail (5), and the at least one main guide rail (4) comprises at least one second interface (35) which is suitable for fixing the ejection device (11) and / or the pull-in device (8) on the at least one supporting guide rail (5). The at least one second interface (35) is suitable for fixing a driver (36) for an ejection device (11) and / or a pull-in device (8) on the at least one main guide rail (4), and wherein the at least one electric drive (6) is arranged or can be arranged on the at least one second interface (35), at least one rack (9) for transmitting a force from at least one electric drive (6) to the at least one carrier rail (5) is arranged or can be arranged on the at least one interface (34).

Description

Technical Field

[0001] The present invention relates to an arrangement system according to the preamble of claim 1. Furthermore, the present invention relates to an electric drive for such an arrangement system, comprising an electric motor for at least partially automatically moving a movable furniture part relative to a fixed furniture part, in particular a motor that can be supplied with 230 V, wherein the electric drive comprises a preferably plate-shaped carrier for placement on a main body rail of a guide device. Furthermore, the present invention relates to a method for retrofitting at least one electric drive to a guide device when the guide device is already installed. Background Art

[0002] EP 1 323 364 A1 discloses a configuration system with a guide device, in which a drawer is moved by means of a drive unit controlled by a triggering device. The triggering device thus comprises two manually actuable touch switches, such as drag switches, arranged on the drawer, for three different switching states. The triggering device can be activated depending on the relative position of the furniture component parts or by tapping the furniture component parts to generate a switching pulse.

[0003] EP 1 323 363 A1 also discloses a system with a guide device, in which a drive unit is controlled by a control device and a force-measuring device to automatically and bidirectionally support the movements requested by the drawer user. A position-measuring device can also be provided, generating a position signal from which the instantaneous actual position, actual velocity, and actual acceleration can be calculated as a function of the measured position. Target values can also be determined so that essentially the same force can be generated under varying drawer loads.

[0004] Also known from document EP 2 642 899 A1 is an arrangement comprising a guide device, in which arrangement different triggering sensitivities can be produced via two sensors when a force is applied to the drawer.

[0005] The disadvantages of the prior art are that additional space must be provided for the installation of the drive, and furthermore, the power supply to the movable furniture part and the sufficient transmission of the movement to the movable furniture part must be considered. In addition, the connection of the different movement technologies is complicated and expensive. Summary of the Invention

[0006] The objective technical task of the present invention is to provide an improved lighting device compared with the prior art, in which the shortcomings of the prior art are at least partially eliminated, and the outstanding feature of the lighting device is that the connection of the drive device is particularly convenient.

[0007] This object is achieved by the features of claim 1 .

[0008] According to the present invention, it is provided that: the at least one electric drive device is arranged or can be arranged on the at least one second interface, and at least one rack for transmitting force from the at least one electric drive device to the at least one load-bearing guide rail is arranged or can be arranged on the at least one first interface.

[0009] The interface, which is connected to the component to be arranged on it, therefore has several functions, firstly to ensure user-friendly retrofitting and secondly to accommodate a large number of flexibly replaceable and variable movement technologies.

[0010] Thus, a plurality of different motion technologies can be arranged on the first interface or the second interface, without having to provide a dedicated location or coupling device for the individual motion technologies, so that the individual motion technologies can be connected as additional devices in an installation-friendly manner.

[0011] As a synergistic effect, these technical effects result in a comfortable and resource-saving (especially in terms of available storage space) installation of the electric drive. In particular, the electric drive of compact or narrow design can be positioned below the movable furniture part, particularly via a connection to the carcass rail and / or via a suitable drive design and / or motor selection. This allows for optimal use of the depth of the fixed furniture part and eliminates the need for a power supply for movement.

[0012] As mentioned at the outset, protection is also sought for an electric drive for such an arrangement, comprising an electric motor, in particular capable of being supplied with 230 V, for at least partially automatically moving a movable furniture part relative to a fixed furniture part, wherein the electric drive comprises a preferably plate-shaped carrier for being arranged on a body rail of a guide arrangement, wherein the carrier comprises an inclined surface which is designed such that the electric drive can be mounted, preferably rotatably, on a body rail arranged on a fixed furniture part in the mounted state without collision.

[0013] When the electric drive is mounted on the support rail, the bevel reduces the risk of collisions with fixed furniture parts or the support rail. The electric drive can be attached to an existing guide as an add-on. A rack (or equivalent) can also be subsequently coupled to the support rail to transmit the movement from the electric drive to the movable furniture part.

[0014] As mentioned at the outset, protection is also sought for a method for retrofitting at least one electric drive to a guide device in the assembled state of the guide device, wherein the following method steps are carried out in particular in chronological order:

[0015] providing at least one electric drive for at least partially automatically moving the movable furniture part, in particular an electric drive of this type;

[0016] Mounting a guide, preferably a drawer extension guide, on a fixed furniture part, preferably a furniture carcass, for guiding the movable furniture part, preferably a drawer, relative to the fixed furniture part;

[0017] If necessary, remove the ejection device, the retraction device, the driver for the ejection device or the driver for the retraction device from the guide device;

[0018] The at least one electric drive is preferably arranged substantially entirely below the movable furniture part on at least one second interface of the at least one carcass rail of the guide arrangement;

[0019] At least one toothed rack is arranged on at least one first interface of the at least one supporting rail for transmitting force from the at least one electric drive to the at least one supporting rail of the guide device.

[0020] Advantageous embodiments of the invention are defined in the dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following further illustrates further details and advantages of the present invention with reference to the embodiments depicted in the drawings.

[0022] Figure 1a 、 Figure 1b A perspective view of a guide device of a piece of furniture driven by an electric drive according to a preferred embodiment, together with an enlarged detail in the area of the electric drive,

[0023] Figure 2-Figure 4 Based on Figure 1b A perspective view of the guide device of an embodiment and an enlarged detail of the connection area of the rack on the carrier rail,

[0024] Figure 5 Based on Figure 1b A top view of the guide device of an exemplary embodiment, with an enlarged detail in the coupling region between the toothed rack and the gearwheel of the electric drive,

[0025] Figure 6 Based on Figure 1b Bottom view of the guide device of an embodiment, together with an enlarged detail of the connection area of the electric drive device on the guide rail of the main body,

[0026] Figure 7a 、 Figure 7b Based on Figure 1b A top view and a perspective view of an electric drive device of an embodiment with a carrier for coupling to a body rail,

[0027] Figure 8a 、 Figure 8b Based on Figure 1b Front and rear perspective views of the electric drive with the cover removed,

[0028] Figure 9 、 Figure 10 Based on Figure 1b Exploded view of a displacement measuring device of an electric drive of an exemplary embodiment, and a top view with an enlarged detail in the area of the position sensor,

[0029] Figure 11 、 Figure 12 Based on Figure 8a A perspective view of the electric drive with a protective body in the housing, which protects the drive from belt wear, and an enlarged detail in the area of the belt drive with belt tensioners on both sides.

[0030] Figure 13a 、 Figure 13b Based on Figure 1b Two perspective views of a transmission arrangement of an electric drive device according to an embodiment,

[0031] Figure 14a 、 Figure 14b Based on Figure 1b A top view and a perspective view of an overrunning clutch of an electric drive device according to an embodiment,

[0032] Figure 15 is a perspective view of a guide device according to another preferred embodiment with an electric drive device arranged on one side,

[0033] Figure 16 To illustrate the basis Figure 9 Illustration of the embodiment of the displacement measuring device shown for the single measurement of the position and the absolute displacement of a movable furniture part along a guide via the sensor angle over the extension length. DETAILED DESCRIPTION

[0034] Figure 1a A piece of furniture is shown with a movable furniture part 2 in the form of a drawer, which can be moved relative to a fixed furniture part 1 in the form of a furniture carcass via guides 3 in the form of drawer extension guides by an electric drive 6 .

[0035] The movable furniture part 2 can be divided into a first movable furniture part 41 and a further movable furniture part 42 , wherein the further movable furniture part 42 is arranged below the first movable furniture part 41 in the use position 14 of the arrangement.

[0036] However, the furniture is not limited to drawers and can generally include other containers. For example, the furniture can be a furniture body with a panel, a cabinet with folding doors and / or sliding doors or the like.

[0037] Figure 1b The furniture is shown with a movable furniture part 2 removed, the arrangement of which comprises a fixed furniture part 1 , a furniture part 2 movable relative to the fixed furniture part 1 and two guide devices 3 for guiding the movable furniture part 2 relative to the fixed furniture part 1 .

[0038] The present arrangement comprises an electric drive 6 for at least partially automatically moving the movable furniture part 2 relative to the fixed furniture part 1. The electric drive comprises an electric motor 7 supplied with a voltage of 230 V. The energy supply for the electric motor 7 is generally arbitrary and can also use different voltages. Often, lower voltages are also sufficient to provide sufficient energy for the electric motor 7, particularly due to regional or local power grid characteristics.

[0039] The guide device 3 comprises a main rail 4 arranged on the fixed furniture part 1 and a supporting rail 5 arranged on the movable furniture part 2. Generally speaking, an intermediate rail can be provided at least partially between the main rail 4 and the supporting rail 5, but this is usually not necessary, in particular for fully extending the movable furniture part 2 by arranging the electric drive 6 at the front face and connecting it to the rack 9.

[0040] In the detail drawing, the connection of the electric drive device 6 on the main guide rail 4 and the connection of the rack 9 on the supporting guide rail 5 are shown enlarged, wherein the supporting guide rail 5 includes a first interface 34 (if necessary, multiple first interfaces 34 can be provided), which is suitable for fixing the ejection device 11 and the retraction device 8 on the supporting guide rail 5.

[0041] A retraction device 8 , which is usually unnecessary, is provided on the first interface 34 . Alternatively or additionally, a mechanical or electrical ejection device 11 can be arranged on the first interface 34 .

[0042] Preferably, the ejection device 11 has a touch-to-open function, via which the ejection process can be triggered by an overpressure movement.

[0043] The main body guide rail 4 includes a second interface 35 (if necessary, multiple second interfaces 35 can be provided), which is suitable for fixing the driving member 36 for the ejection device 11 or the retraction device 8 on the main body guide rail 4. The second interface 35 (not visible in the figure) is located on the bottom surface of the main body guide rail 4 (see Figure 6 ).

[0044] The electric drive 6 is arranged on the second interface 35 , and a toothed rack 9 for transmitting force from the electric drive 6 to the support rail 5 is arranged on the first interface 34 .

[0045] The connection of the electric drive 6 is achieved via the snap connection 71 and via a rotation process for hooking (see Figure 6 ). The rack 9 is connected via the snap-in connection 71 during the translational insertion into the retraction device 8 or the supporting rail 5. For example, the snap-in connection 71 can have a snap-in tab or latching projection 81 (on the rack 9, the retraction device 8 or the supporting rail 5), which can usually be alternatively or supplementarily also a hook 75. In the embodiment, the rack 9 is connected to the retraction device 8, which can have an ejection device 11 if necessary, or the ejection device 11 can be connected to the retraction device if necessary (equally, a substitute for the retraction device 8 can also be considered). It is also possible to connect the rack 9 directly to the supporting rail 5. It is also possible to connect the electric drive 8 indirectly (for example via the driver 36 for the retraction device 8), wherein a direct connection is preferred.

[0046] The design width of the rack 9 should be adapted to a belt (if necessary with teeth 18 ), a chain or the like which transmits force between the electric drive 6 and the support rail 5 .

[0047] In the system's operating position 14, the electric drive 6 is arranged on the carcass rail 4 substantially completely below the movable furniture part 2. If necessary, the furniture part front 23 (e.g., to access the trigger sensor 59) can extend vertically 15 below the top surface of the electric drive 6 or below the electric drive 6. The base of the movable furniture part 2 is completely above the electric drive during movement of the movable furniture part. During use, the movable furniture part 2 moves past the electric drive 6.

[0048] The electric drive 6 is fixedly mounted on the carcass rail 4 and is connected to the rack 9 for transmitting the movement throughout the entire path 13 of the movable furniture part 2 along the guide device 3 .

[0049] The movable furniture part 2 comprises a furniture part front 23 , wherein the electric drive 6 on the carcass rail 4 is arranged in the area of a free end 24 of the carcass rail 4 facing the furniture part front 23 in the configuration position 14 of use.

[0050] In the closed position, the electric drive 6 is arranged flush with the carrier rail 5 or the toothed rack 9. The toothed rack 9 can compensate for pull-out losses which occur due to the tightening of the body rail and / or the use of a specific type of trigger sensor.

[0051] The electric drive 6 is arranged substantially flush with the free end 24 of the car body rail 4 in the closed position and in the open position 30 .

[0052] The fixed furniture part 1 comprises two furniture panels 64 which are vertical and oriented parallel to one another in the use position 14, wherein precisely one electric drive 6 is fixedly mounted on one of the two furniture panels 64 indirectly via the carcass rail 4. Generally speaking, however, a further electric drive 6 or an additional toothed rack 9 can also be arranged on the opposite furniture panel 64, but this is not mandatory.

[0053] In the use position 14 of the arrangement, the movable furniture part 2 comprises a furniture part front 23 , wherein the electric drive 6 on the carcass rail 4 is arranged in the region of a free end 24 of the carcass rail 4 facing the furniture part front 23 (essentially flush with this free end 24 or the support rail 5 in the closed position or the toothed rack 9 in the closed position).

[0054] Figure 2 The connection of the electric drive 6 to the carcass rail 4 is shown without the surrounding furniture parts 1 , 2 , wherein the supporting rail 5 is fully extended in the path 13 , which represents the extension path of the movable furniture part 2 .

[0055] The enlarged detail shows the connection of the toothed rack 9 to the support rail 5 or the retraction device 8, wherein the ejection device 11 is shown in dashed lines and can alternatively or additionally be arranged on the first interface 34. It is also conceivable to provide a locking device 69 on the first interface 34 to inhibit the movement of the movable furniture part 2. The damping device 12 is integrated into the retraction device 8, or it can be provided as a separate component.

[0056] Figure 3 The guide device 3 is shown with an electric drive 6 for automatically moving the movable furniture part 2 or the support rail 5 by means of an electric motor 7 (with a supply voltage of 230 V).

[0057] The retraction device 8 for the movable furniture part 2 and the toothed rack 9 operatively connected to the electric drive 6 are already assembled, the retraction device 8 being arranged directly on the support rail 5 and the toothed rack 9 being arranged indirectly via the retraction device 8 on the first interface 34 of the support rail 5. In general, the toothed rack 9 may alternatively or additionally directly contact the support rail 5.

[0058] The rack 9 is detachably arranged on the support device 10 , and the support device 10 is detachably arranged on the retraction device 8 .

[0059] In this context, a detachable connection of the support device 10 is understood to mean a connection that can be released non-violently, preferably without tools.

[0060] The support device 10 is arranged in the horizontal direction 16 between the toothed rack 9 and the retraction device 8 , and generally speaking, can also be arranged with the toothed rack 9 pointing downward in the vertical direction 15 .

[0061] The supporting device 10 or the retraction device 8 can comprise a mechanical or electric ejection device 11 , wherein the retraction device 8 comprises a damping device 12 for damping a movement of the movable furniture part 2 in the region of the closed position.

[0062] The stationary electric drive 6 is connected to the rack 9 for transmitting the movement along the entire path 13 of the guide device 3 , wherein the electric drive 6 comprises a gear 17 which meshes with the rack 9 and is connected to the motor 7 .

[0063] The toothed rack 9 is arranged laterally over the entire path 13 between the electric drive 6 and the support rail 5 .

[0064] In this embodiment, exactly one electric drive device 6 is arranged on one of the two main body guide rails 4 of the guide device 3, and exactly one rack 9 is arranged on one of the two supporting guide rails 5 of the guide device 3. Generally speaking, two electric drive devices 6 can also be used on the two main body guide rails 4.

[0065] The electric drive 6 or other electrical loads that may be present (such as Figure 6 The lighting device 31 in the guide device 3 is powered via the main body rail 4, wherein alternatively or additionally, power can be supplied via the rack 9. A power supply and wiring can be provided between the two main body rails 4 of the two provided guide devices 3, for example, to supply power to another trigger sensor 65. Similarly, each main body rail 4 (or rack 9) can also be powered separately.

[0066] In the operating position 14 of the arrangement, the teeth 18 of the toothed rack 9 are oriented in the horizontal direction 16 away from the support rail 5 and, generally speaking, also downward in the vertical direction 15 .

[0067] The rack 9 is coupled to the gear wheel 17 of the electric drive 6 . The rack 9 is arranged (via a connection to or through the support 10 ) so that it can be bent (also conceivably pivoted) in the horizontal direction 16 relative to the support rail 5 and thus has limited lateral movement. For example, the rack 9 can also be arranged with vertical teeth 18 so that it can be limitedly movable in the vertical direction 15 (away from the gear wheel 17 ). This allows for a secure coupling with the elastic drive 6 . Furthermore, the assembly effort is reduced due to the reduced inclination, and noise generation is reduced due to the elastic or flexible deformation. For example, the rack 9 can be preloaded in the direction of the gear wheel 17 by a spring or by its inherent elasticity to ensure a positive fit with the electric drive 6 during operation.

[0068] The toothed rack 9 is particularly preferably of flexible design in order to be able to ensure a reliable, smooth and continuous transmission of movement via elastic deformation.

[0069] Since the releasable connection (particularly a double releasable connection) can form an overload protection clutch via the associated components, the overload protection clutch 68 of the electric drive unit 6 can be omitted. For example, if the rack 2 is loaded (e.g., due to shaking or undue forces acting on the movable furniture part), the tolerances arising in the interaction between the gearwheel 17 and the rack 9 under load can prevent complete decoupling of the electric drive 6 and the rack 9 without losing the effectiveness of the overload protection clutch. As a result, the position of the support rail 5 relative to the body rail 4 can still be determined unambiguously via the relative position of the rack 9 and the gearwheel 17. Decoupling from the motor 7 is not necessary and can be achieved, for example, via the overrunning clutch 29. Necessary reference travel can be prevented, with the support device 10 acting as a coupling device.

[0070] Figure 4 An enlarged detail of the guide device 3 with the support rail 5 in the region of the coupling device for the furniture part rear side of the movable furniture part 2 is shown.

[0071] The supporting guide rail 5 includes a bearing device 21 for the rack 9, wherein the bearing device 21 is arranged on the supporting guide rail 5 and the rack 9. During the relative movement of the supporting guide rail 5 and the main guide rail 4, the rack 9 and the bearing device 21 can pass over the carrier 22 of the electric drive device 6 for connecting the electric drive device 6 to the main guide rail 4.

[0072] Figure 5 The guide device 3 is shown, wherein the coupling between the gear wheel 17 operatively connected to the electric drive 6 and the electric motor 7 and the teeth 18 of the toothed rack 9 is shown in an enlarged detail.

[0073] The electric motor 7 (or the electric drive 6 ) comprises a gear wheel 17 , which meshes with the rack 9 and is coupled to a gear stage 55 of the electric drive 6 .

[0074] In the operating position 14 of the arrangement, the gear wheel 17 is oriented in the horizontal direction 16 in the direction of the support rail 5 , wherein the gear wheel 17 of the electric drive 6 can also be oriented upward in the vertical direction 15 .

[0075] The toothed rack 9 is arranged between the electric drive 6 and the carrying rail 5. The guide device 3 is in the closed position, in which the movable furniture part 2 arranged on the carrying rail 5 is in the end position.

[0076] In order to improve the time and / or intensity of the energy transmitted via the electric drive 6 to the movable furniture part, the electric drive is controlled by a microcontroller 37 which performs the functions of a control and / or regulating device 44 and serves as a computing unit.

[0077] An exemplary method based on a computing unit for moving a movable furniture part 2 relative to a fixed furniture part 1 along a guide device 3 via an electric drive 6 (the electric drive 6 is used to at least partially automatically move the movable furniture part 2 relative to the fixed furniture part 1 via a motor 17) is implemented as follows: a microcontroller 37 includes a computing unit and a storage unit data-connected to the computing unit, the microcontroller determines a model of the movable furniture part 2 based on at least one static data set stored in the storage unit, the movable furniture part 2 is manually moved from a partially or completely open position 30 and a closed position in the direction of the closed position or vice versa, and the microcontroller 37 calculates a predicted movement trajectory of the movable furniture part 2 along the guide device 3 based on at least one dynamic data set.

[0078] The static data set may comprise, for example, the mass of the movable furniture part 2, the friction of the movable furniture part 2 on the guide device 3, the dimensions of the movable furniture part 2, the load of the movable furniture part 2, the dimensions of the guide device 3, the path 13 along the guide device 3, tolerance limits, etc.

[0079] The path 13, along which the electric drive 6 is at least partially driven by automatic control, usually depends on the extension path of the movable furniture part 2 or the longitudinal extension of the toothed rack. The drive can be carried out along the path 13; preferably, it is carried out over a sub-region of the path 13.

[0080] The dynamic data set may comprise, for example, the absolute distance covered by the movable furniture part 2 relative to the fixed furniture part 1 , the speed of the movable furniture part 2 , the load of the movable furniture part 2 , the acceleration curve of the movable furniture part 2 (usually determined by a speed measuring device 52 ), the acceleration section of the movable furniture part 2 , the kinetic energy of the movable furniture part 2 and the like.

[0081] The static and dynamic data sets can be determined during a reference run of the movable furniture part 2 or over multiple reference runs (if necessary with varying loads on the movable furniture part 2). Alternatively or additionally, the static data set can be stored in a storage unit without a reference run and the static or dynamic data set can be compared with the data set stored in the storage unit or corrected based on the stored data set.

[0082] The following aspects are specified in this embodiment, but are not necessarily required to be implemented:

[0083] Based on the predicted movement trajectory, the microcontroller 37 decides whether the electric drive 6 should apply a force to the movable furniture part 2 or whether the movable furniture part 2 should be moved manually within the overrunning range. The electric motor 7 includes an overrunning clutch 29, via which the force transmission from the electric motor 7 to the movable furniture part 2 is disconnected in the overrunning range.

[0084] The microcontroller 37 calculates on the basis of the at least one static data set and the at least one dynamic data set whether the movable furniture part 2 reaches the closed position without application of force by the electric drive 6, wherein the speed at which the movable furniture part 2 enters the closed position is determined as a function of the damping power of the damping device 12 arranged on the movable furniture part 2 or the fixed furniture part 1.

[0085] The microcontroller 37 determines a speed profile for driving the movable furniture part 2 by the electric drive 6 based on the predicted motion trajectory, wherein the electric drive 6 applies a force to the movable furniture part 2 based on the speed profile. The speed profile is generated based on the at least one static data set or the at least one dynamic data set, wherein a force is applied to the movable furniture part 2 when the speed of the movable furniture part 2 is below the speed profile, and the electric drive 6 brakes the movable furniture part 2 when the speed of the movable furniture part 2 is above the speed profile, and the transmission of force to the movable furniture part 2 is initiated at a predefined speed threshold or a predefined position threshold.

[0086] The microcontroller 37 is equipped with a learning algorithm in the form of artificial intelligence, including a neural network with machine learning or deep learning. The learning algorithm analyzes and compares historically predicted motion paths. For future predicted motion paths, future velocity profiles, or future decisions regarding the application of forces to the movable furniture part 2, the history of the measured motion paths is referenced based on individual static or dynamic data sets.

[0087] The movement sequences of the movable furniture part 2 along the guide device 3 serve as training data for the artificial intelligence. It has proven particularly advantageous to train the learning algorithm using different guide devices 3 and different forces or loads on the movable furniture part 2. The movement sequences of specific guide devices and specific movable furniture parts 2 can be added to the training data for learning, particularly continuous learning.

[0088] During the movement of the movable furniture part 2 , the electric drive 6 remains fixed on the carcass rail 4 and remains connected to a toothed rack 9 arranged on the supporting rail 5 .

[0089] The movable furniture part 2 can be driven by the electric drive 6 via the support rail 5, starting from the open position 30 or a position between the open position 30 and the closed position, through the entire path 13 to the closed position and the open position 30 or only through a portion of the path 13, wherein the application of force by the electric drive 6 from the closed position in the direction of the open position 30 is initiated by an overpressure movement of the movable furniture part 2 or by a dedicated electronic triggering sensor 59. In the overrunning range, the movable furniture part 2 can be moved manually in the non-driven range of the path 13, so that the motor 7 does not apply any force to the movable furniture part 2.

[0090] It has proven to be particularly advantageous if, in the direction of the open position 30 (in particular starting from the closed position), the actuation area of the path 13 is between 50 mm and 150 mm, while in the direction of the closed position (in particular starting from the completely open position 30), the actuation area of the path 13 is between 5 mm and 20 mm.

[0091] The movement of the movable furniture part 2 in the direction of the closed position or the open position 30 can be inhibited, braked or prevented by the electric drive 6, wherein the movable furniture part 2 is subjected to a force in the direction of the closed position by the retraction device 8 in the region of the closed position. However, the retraction device 8 is not absolutely necessary and can, for example, be replaced by the electric drive 6.

[0092] An algorithm or computer program product comprising commands for carrying out the method can be stored in the microcontroller 37 or the control and / or regulating device 44 , transmitted on a data carrier signal or stored on an in particular non-volatile data carrier.

[0093] The microcontroller 37 or the computing unit of the control and / or regulating device 44 is configured to determine a model of the movable furniture part 2 based on the at least one static data set stored in the storage unit and to calculate a predicted movement trajectory of the movable furniture part 2 along the guide device 3 based on the at least one dynamic data set (if necessary stored in the storage unit). The electric drive 6 includes a computing unit.

[0094] The storage unit has sufficient storage capacity to provide the information required for the model. The computing unit has sufficient computing power to calculate the model with the accuracy required by the furniture industry regarding the velocity profile to be transmitted to the movable furniture part 2. The storage capacity and computing power can be matched depending on the desired accuracy of the model or the desired accuracy of the output parameters (e.g., velocity profile) that can be generated by the model.

[0095] The speed profile preferably includes the acceleration amplitude, the acceleration distance, the path 13 or a sub-region of the path 13 over which the movable furniture part 2 is to be accelerated or driven, the maximum speed, and the like. For example, the currently existing load on the movable furniture part 2 or the (discrete or continuous) pulse transmission of an operator of the movable furniture part 2 can be used as dynamic parameters as input variables.

[0096] By means of this method and in particular the microcontroller 37 or the control and / or regulating device 44, the movement of the movable furniture part 2 can be assisted in its detection, wherein, for example, the movable furniture part 2 can be driven in the closing direction or in the opening direction in such a way that it is moved to the end position (closed position or open position 30) essentially silently and / or without significant force effects on structural components. In general, a partial drive or a complete drive (in particular through the entire path 13) to the end position is possible.

[0097] Compared to the prior art, the functionality of the method is enhanced, in particular in the case of alternating forces and / or loads on the movable furniture part 2 or varying guide devices 3, so that undesirable, inharmonious movement trajectories can be prevented, wherein the movable furniture part 2 is prevented from moving too fast or too slow, which could result in the movable furniture part 2 not being able to move to the desired end position or causing damage.

[0098] The microcontroller 37 can be understood as a control and / or regulating device 44 or comprises a control and / or regulating device as a computing unit.

[0099] Figure 6 It is shown that the electric drive 6 comprises a plurality of lighting devices 31 which are stationary relative to the fixed furniture part 1 , wherein generally only one lighting device 31 may also be provided. The lighting devices 31 are arranged on the electric drive 6 .

[0100] The lighting device 31 is in the form of a lamp 38 (designed as an LED lamp) and is integrated into the electric drive 6 , partially into a housing 47 of the electric drive 6 .

[0101] Another lighting device 31 is in the form of a strip lighting device 40 designed as an LED light strip and is directly arranged on the electric drive device 6. As indicated by the dashed line, the other lighting device 31 may also be in the form of a planar lighting device 39 (here provided as an LED surface light source). For example, the other lighting device 31 may also be arranged indirectly on the electric drive device 6, such as via a connection to the power cable 32 (not shown for clarity).

[0102] The lighting device 31 is oriented on the underside of the electric drive 6 in such a way that the further movable furniture part 42 can be illuminated by the lighting device 31, wherein the lighting device 31 is arranged on the electric drive 6 of the first movable furniture part 41. In general, however, the lighting device 31 can alternatively or additionally be arranged on the electric drive 6 or on the power supply line 32 of the electric drive 6 of the first movable furniture part 41 in such a way that the first movable furniture part 41 can be illuminated by the lighting device 31.

[0103] As in Figure 9 and Figure 10 As described in detail in the accompanying drawings, a displacement measuring device 33 is provided which can be used as an alternative or in addition to the schematically shown motion sensor 43 to detect the relative position of the movable furniture part 2 relative to the fixed furniture part 1, for example the fully or partially opened position 30. Depending on the determined relative position, the lighting device 31 can be activated via the control and / or regulating device 44 or the microcontroller 37. The displacement measuring device 33 and the motion sensor 43 are arranged on the electric drive 6 and are coupled to the power supply line 32 of the electric drive 6 and the lighting device 31. In general, as an alternative or in addition to the displacement measuring device 33 or the motion sensor 43, a distance sensor 50 (see Figure 1b ) to determine the relative position to trigger the lighting devices 31. The number of lighting devices 31 is generally arbitrary.

[0104] The lighting device 31 is arranged between the two main body guide rails 4 of the guiding device 3 , wherein the strip lighting device 40 is arranged laterally between the main body guide rails 4 and extends completely linearly between the two main body guide rails 4 .

[0105] There is a direct power connection between the two carcass rails 4, which can be used to illuminate the movable furniture part 2. This power connection or power supply is routed via one of the two carcass rails 4 or the rack 9. The electric drive 6 is fixedly mounted on one of the two carcass rails 4, and the rack 9 is mounted on the support rail 5 of the guide device 3 to continuously transmit the movement of the gear 17 of the electric drive 6 to the support rail 5. The electric drive 6 and the power supply cable 32 for the electric drive 6 and the lighting device 31 are fixedly mounted on the guide device 3 (on the carcass rail 4).

[0106] The control and / or regulating device 44 or the microcontroller 37 can be used to apply force to the movable furniture part 2 via the electric drive 6, whereby the connection to the carcass rail 4 has a dual function. The electric drive 6 is designed to move the movable furniture part 2 at least partially relative to the fixed furniture part 1, wherein the electric drive 6 includes a lighting device 31 arranged on the electric drive 6 or on a power supply line 32 of the electric drive 6.

[0107] An exemplary method for providing illumination to a movable furniture part 2 (and, if necessary, to other movable furniture parts 42) can be explained as follows: the movable furniture part 2 is at least partially automatically moved relative to the fixed furniture part 1 along a guide 3 via an electric drive 6, and a lighting device 31 arranged on the electric drive 6 or on a power cord 32 thereof is activated. The movable furniture part 2 is then illuminated by the lighting device 31, wherein the movable furniture part 2 moves while the lighting device 31 remains stationary. Specifically, in response to the movement of a first movable furniture part 41, the other movable furniture parts 42 are illuminated by the lighting device 31, wherein the lighting device 31 remains stationary on the electric drive 6 of the first movable furniture part 41. To this end, the relative position of the other movable furniture parts 42 can be detected, and based on the determined relative position, the lighting device 31 is activated via the control and / or regulating device 44 or the microcontroller 37. For example, an algorithm or computer program product can be stored in the control and / or regulating device 44 or the microcontroller 37, which includes commands that, when executed by the computing unit, cause the computing unit to execute the method from a storage unit that is data-connected to the computing unit.

[0108] The light is preferably emitted in the visible wavelength range, wherein it can be provided, for example, that the wavelength range and / or intensity of the lighting device 31 can be changed and / or adjusted (if necessary via the electric drive 6 or a receiving unit of the electric drive 6 for configuring the system electric drive 6).

[0109] In general, alternatively or additionally, the lighting device 31 can also be used to emit light in the infrared range for heating, or light in the UV wavelength range (particularly the UVC wavelength range) for sterilization or disinfection. This can remove harmful microorganisms from stored items or surfaces, or the interior temperature of the movable furniture part 2 can be adjusted to a desired temperature so that household items can be illuminated with a wavelength range of varying intensity or adjustable intensity (particularly in conjunction with vacuum drawers, which can be adjusted as needed). For this purpose, it is particularly suitable to install a stationary electric drive 6 above the unit cell. It is also conceivable to provide a locking device that depends on the activation of the lighting device 31.

[0110] In principle, supplying power to the movable furniture part 2 is both expensive and complex, since the movement of the movable furniture part 2 must be taken into account. However, providing illumination of the movable furniture part 2 offers the advantage that stored items in the movable furniture part 2 can be uniquely identified, particularly in low-light conditions or at night. In particular, if the electric drive 6 is stationary on the carcass rail 4, supplying power via the carcass rail 4 can also serve a dual purpose, effectively utilizing the power supply to the lighting device 31.

[0111] Figure 7a An electric drive 6 with a motor 7 having a supply voltage of 230 V is shown, wherein the electric drive 6 comprises a plate-shaped carrier 22 for being arranged on the body rail 4 of the guide device 3, wherein the carrier 22 comprises an inclined surface 72 designed so that the electric drive 6 can be assembled (in combination with Figure 1b , see Figure 6 ) is mounted on the body rail 4 arranged on the fixed furniture part 1 via a screw-in operation.

[0112] The electric drive 6 has a longitudinal direction 27 , and the inclined surface 72 of the carrier 22 forms an acute angle of between 5° and 30° with respect to the longitudinal direction 27 .

[0113] The inclined surface 72 for being arranged on the body rail 4 is arranged on a free end 73 of the carrier 22 that protrudes laterally from the electric drive device 6 and is spatially spaced apart from the electric drive device 6 and the motor 7 .

[0114] The electric drive 6 includes two coupling devices 74 on the carrier 22 for connecting to the second interface 35 of the main body rail 4. Generally, one coupling device 74 is sufficient. One coupling device 74 is in the form of a hook 75 punched and bent from a metal sheet. Another hook 76 is provided on the carrier 22 as a mating support for connecting the electric drive 6 to the main body rail 4. For example, the driver 36 for the retraction device 8 or the ejection device 11 (optionally with a touch-to-open function) can be arranged on the other hook 76. This other hook 76 can serve as the second interface 35.

[0115] The other coupling device 74 is a snap-on connection 71 (similar to the two coupling devices 74 as hooks / other hooks 75 and 76). This other coupling device 74 is designed as a latching projection 81. The electric drive device 6 can be inserted into the car body rail 4 via the latching projection 81 and the carrier 22 for translation and can be securely fixed to the car body rail 4 during the screwing process via the two hooks, wherein generally, secure fixation is already achieved via the latching projection 81.

[0116] During assembly (due to additional grooves provided on the side of the material), latching projections 81 resiliently sink into corresponding recesses for securement. An extension can be seen between hooks 75 and 76, serving as an axis of rotation for the rotational movement after translational contact. In general, securing can also be achieved by simply translating a snap-on connection, for example, by snapping tabs into place.

[0117] The coupling device 72, in the form of a hook 75, overlaps with an opening 77 in the carrier 22. The opening 77 here serves a dual function in connection with the manufacturing process of the carrier 22, as it can, for example, be used as a clamping device during production (e.g., for handling or coating). Alternatively or additionally, the opening 77 can also be arranged on the main body rail 4, where it can also serve a dual function with respect to the connection and manufacturing process. The hook 75 extends through the opening 77 in the carrier 22 (or main body rail 4). The electric drive 6 can generally be arranged on the main body rail 4 indirectly via the carrier 22. The carrier 22 can be a multi-part design. The hook 75 or latching projection 81 can generally be arranged on the main body rail 4 as a kinematic counterpoint. A multi-part construction of the opening 77 or the carrier 22 is generally not necessary. The opening 77 is preferably located in the main body rail 4, into which the hook 75 engages, with the opening 77 defining the position of the main body rail 4 in the production equipment for the main body rail 4. Another kinematic technique can be associated with the hook 74.

[0118] An exemplary method for attaching an electric drive 6 to a guide device 3 in an assembled state can be described as follows: an electric drive 6 for at least partially automatically moving a movable furniture part 2 is provided, and the guide device 3 is mounted on a fixed furniture part 1 (see Figure 1a ) for guiding the movable furniture part 2 relative to the fixed furniture part 1, wherein, if necessary, the ejection device 11, the retraction device 8, the driver 36 for the ejection device 11 or the driver 36 for the retraction device 8 are removed from the guide device 3. The electric drive 6 is then arranged substantially completely (if necessary, with the furniture part front 23 protruding downwards) below the movable furniture part 2 to be moved on the second interface 35 of the carcass rail 4, and the toothed rack 9 is arranged on the first interface 34 of the support rail 5 in order to transmit the force of the electric drive 6 to the support rail 5.

[0119] The first interface 34 of the support rail 5 can usually be provided via the retraction device 8 .

[0120] Arranged on the second interface 35 are a locking device 69 (schematically indicated by dashed lines) for blocking a movement of the movable furniture part 2 relative to the fixed furniture part 1 and a driver 36 for the ejection device 11. The driver 36 of the retraction device 8 provided in this embodiment is indicated by dashed lines on the second interface.

[0121] During the installation of the electric drive 6 onto the main rail 4, the bevel 72 reduces the risk of collision with the fixed furniture part 1 or the main rail 4. The electric drive 6 can be attached to the existing guide device 3 as an add-on. A rack 9 (or equivalent) can also be subsequently coupled to the support rail 9 to transmit the movement of the electric drive 6 to the movable furniture part 2. Thus, the interfaces 34, 35 and the components arranged thereon serve multiple functions: firstly, to ensure user-friendly retrofitting, and secondly, to accommodate a wide range of flexibly replaceable and variable motion technologies. This avoids the need for multiple interfaces for a large number of motion technologies, where individual motion technologies are connected as add-ons, facilitating installation. No additional structural space is required for the installation of the electric drive 6, thereby facilitating the supply of power to the movable furniture part 2 and the adequate transmission of motion to the movable furniture part 2.

[0122] Related to this is a second aspect (connected via synergistic effects of technical effects), which relates to the comfortable and (particularly depending on the available storage space) resource-saving installation of the electric drive 6, wherein, in particular via the connection to the carcass rail 4 and / or via a suitable drive design and / or selection of the motor 7, a compact or narrowly designed electric drive 6 can be installed below the movable furniture part 2. This allows for optimal use of the depth of the fixed furniture part 1 and eliminates the need for a movable power supply.

[0123] Figure 7b Different from Figure 7a The only difference is that the electric drive 6 is shown in a perspective view.

[0124] The motor 7 is arranged within a housing 47, which has a thickness 67 of less than 100 mm in the vertical direction 15 in the operating position 14 of the configured system. A thickness 67 of less than 80 mm is achievable. The thickness 67 is preferably less than 60 mm (and less than 40 mm is conceivable), so that in conventional furniture, the furniture part front 23 extends below the bottom surface of the electric drive 6.

[0125] Figure 8a It is shown that the electric motor 7 of the electric drive 6 is in the form of a brushless external rotor motor 66 , wherein generally brushed external rotor motors 66 , disk rotor motors or rod motors are also possible.

[0126] External rotor motors and disk rotor motors are particularly flat in design and are therefore preferred.

[0127] The motor 7 is connected to a plurality of gear stages 55 with gears 17 for driving the movable furniture part 2. By configuring the gear stages 55, the thickness 67 can be further reduced and other dimensions can also be made more compact.

[0128] Figure 8b Different from Figure 8a The only difference is that the components of the electric drive 6 that are operatively connected to the electric motor 7 are viewed from a changed perspective.

[0129] The electric drive device 6 comprises a data interface 63 for the wired transmission of at least one digital data set stored in the storage unit, wherein the data interface 63 can generally be designed as an alternative or in addition to the radio signal transmission of the digital data set.

[0130] The electric drive 6 comprises a trigger sensor 59 for starting the motor 7 when the movable furniture part 2 is in the closed position, wherein the electric drive 6 has a cover 47 which is removed in the figure, and the trigger sensor 59 is arranged on the cover 47 for contacting the movable furniture part 2 in the use position 14 of the electric drive 6.

[0131] The trigger sensor 59 comprises a plunger 60 and a micro switch 61 and can be triggered tactilely and electronically by the micro switch 61. Alternatively or additionally, a dedicated electronically activated trigger sensor 59 can be provided.

[0132] Figure 9 A displacement measuring device 33 is shown for the arrangement, wherein the displacement measuring sensor 33 is used to determine the position of the movable furniture part 2 relative to the fixed furniture part 1 and the position can be determined unambiguously in the form of the absolute displacement traversed by the movable furniture part 2 relative to the fixed furniture part 1 via the displacement measuring device 33 .

[0133] The electric drive 6 comprises an electric motor 7 supplied with a voltage of 230 V, which serves to at least partially automatically move the movable furniture part 2 relative to the fixed furniture part 1, wherein the position measuring device 33 is arranged on the electric drive 6 or cooperates with the electric motor 7 to form an integral component of the drive 6 and is integrated in the housing 47 of the electric drive 6. However, it does not necessarily have to be arranged inside the housing 47.

[0134] Along the path 13 between the closed position and the open position 30, the movable furniture part 2 is translatably movable relative to the fixed furniture part 1 along the guide device 3 and is drivable along the entire path 13 by the electric drive 6. A displacement measuring device 33 is provided for determining the position of the movable furniture part 2 relative to the fixed furniture part 1, wherein the relative position can be determined unambiguously via the displacement measuring device 33.

[0135] The displacement measuring device 33 includes a potentiometer 49 in the form of a rotary potentiometer for determining the position. The provision of a Hall effect sensor (a magnet in combination with Hall effect electronics) in the basic electronics has proven particularly advantageous. Alternatively or in addition, a distance sensor 50, such as a distance-measuring laser, can be provided. The distance sensor 50 can typically be positioned spatially spaced apart from the electric drive 6. The displacement measuring device 33 is arranged on the electric drive 6.

[0136] The absolute displacement is determined starting from a predefined reference position, wherein the reference position is in the form of a relative position between the movable furniture part 2 and the fixed furniture part 1 (in the present embodiment, provided as a stop 51 for detecting the end position of the movable furniture part 2) or a reference position of the electric drive 6, in the present embodiment provided as an initial position of the gear wheel 17 connected to the electric motor 7.

[0137] A speed measuring device 52 is provided in the form of a potentiometer 49 arranged on the motor 7 or integrated into the control and / or regulating device 44 or the microcontroller 35. The speed measuring device 52 is used to determine the speed of the movable furniture part 2 relative to the fixed furniture part 1, wherein the movable furniture part 2 can be driven by the electric drive 6 with a speed profile that is matched to the determined speed of the movable furniture part 2 and / or the determined absolute displacement.

[0138] The control and / or regulating device 44 or the microcontroller 37 can be used to start the electric motor 7 at a predefined speed determined via the speed measuring device 52 or at a predefined absolute displacement determined via the at least one displacement measuring device 33 .

[0139] The position in the form of the absolute distance covered is stored as a dynamic data set and the velocity as a dynamic data set at least temporarily in a storage unit for model simulation by the microcontroller 37 or a computing unit of the control and / or regulating unit 44 .

[0140] The displacement measuring device 33 comprises a first position sensor 53 in the form of a sensing wheel designed as a gear 17, and a further position sensor 54 in the form of another sensing wheel designed as a gear 17, wherein the absolute displacement can be determined univocally via the relative rotational position of the position sensors 53, 54.

[0141] The first position sensor 53 and the further position sensor 54 are provided in the form of a gear stage 55 of the electric drive 6. Gear stage 55 is not required for the drive transmission ratio from the motor 7 to the support rail 5; for this purpose, a further gear stage 55 is used. The range of possible transmission ratios for the displacement measuring device 33 is between 1.01:1 and 1.2:1, which can be transmitted via the first sensor wheel. Transmission ratios between 1.2:1 and 2.3:1 can be transmitted between the first and further sensor wheels, and transmission ratios between 1.5:1 and 2:1 can be transmitted via the first and further sensor wheels.

[0142] The sensor wheels used as position sensors 53, 54 are designed as gear wheels 17, but they are not necessary for coupling the electric drive 6 to the toothed rack 9. The diameter 56 of the first sensor wheel differs from the diameter 56 of the second sensor wheel, wherein an absolute displacement of up to 1200 mm can be determined unambiguously via the displacement measuring device 33.

[0143] Starting from a reference position, the absolute displacement of the movable furniture part 2 is determined via the sum or difference of the rotation angles of the two position sensors 53 , 54 , so that the distance between the movable furniture part 2 and the fixed furniture part 1 can be calculated unambiguously.

[0144] The displacement measuring device 33 comprises a magnetic mount 57 extending over the housing 47 of the electric drive 6 and a plastic part 58. The plastic part 58 has a dual function and can serve as a circuit board for the microcontroller 37.

[0145] The displacement measuring device 33 comprises a tactile triggering sensor 59 in the form of a plunger 60 and a microswitch 61. In general, other triggering sensors 59 that do not require mechanical triggering can also be provided. This allows, in the closed position for electronically triggered overpressure movements, to avoid a front gap between the movable furniture part 2 and the fixed furniture part 1, thereby enabling the production of aesthetically pleasing furniture. For example, purely electronic triggering can be achieved by contact with the movable furniture part 2, where, for example, a user of the movable furniture part 2 pressing or rubbing the furniture part front 23 is detected.

[0146] The displacement measuring device 33 and the electric drive device 6 are fixedly mounted together on the main guide rail 4, wherein the electric drive energy is transmitted to the rack 9 arranged on the supporting guide rail 5 so as to be able to transmit the force along the entire path 13 or in a certain partial area of the path 13 starting from any position along the path 13.

[0147] In the operating position 14 of the arrangement, the displacement measuring device 33 is arranged on the carcass rail 4 completely below the movable furniture part 2 and indirectly via the electric drive 6. If necessary, the furniture part front 23 of the movable furniture part 2 can extend below the electric drive 6 or the displacement measuring device 33, for example in order to contact the trigger sensor 59. However, at least the base of the movable furniture part 2 is arranged above the electric drive 6.

[0148] The two gears 17 for determining position or speed are both provided with a microchip. Another gear 17 transmits the energy of the motor 7 to the rack 9.

[0149] The electric drive 6 is arranged on the guide device 3 and is free from contact with the movable furniture part 2 at least when the movable furniture part 2 is in the closed position.

[0150] refer to Figure 10 An exemplary method for moving a movable furniture part 2 relative to a furniture part 1 at least partially along a path 13 between a closed position and a partially or completely open position 30 of the movable furniture part 2 via an electric drive 6 and a displacement measuring device 33 is explained. The position of the movable furniture part 2 relative to the fixed furniture part 1 is clearly determined via the displacement measuring device 33 as an absolute displacement covered by the movable furniture part 2 relative to the fixed furniture part 1, and, depending on the absolute path determined by the displacement measuring device 33, the movable furniture part 2 is translated between the closed position and the open position 30 along the guide device 3 within a certain subregion of the path 13 via the electric drive 6. The support rail 5 can generally be driven along the entire path 13 via the continuous coupling between the toothed rack 9 and the electric drive 6, but this is not absolutely necessary.

[0151] In this method, starting from a predefined reference position, via the relative position of the position sensors 53, 54 and, starting from a reference position, via the sum or difference of the rotation angles of the sensors 53, 54, the absolute displacement can be determined unambiguously as the distance between the movable furniture part 2 (usually the support rail 5) and the fixed furniture part 1 (usually the body rail 4).

[0152] The control and / or regulating device 44 or the microcontroller 37 can drive the movable furniture part 2 with a speed profile adapted to a predetermined speed or a predetermined absolute displacement, wherein the electric drive 6 is activated at a predefined speed or a predefined absolute displacement. For example, an algorithm or a computer program product can be stored, which includes commands that, when executed by the computing unit, cause the computing unit to execute the method from a storage unit that is data-connected to the computing unit.

[0153] The position measuring device 33 and, in particular, the clearly determinable relative position between the fixed furniture part 1 or the carcass rail 4 and the movable furniture part 2 or the support rail 5 ensures that the position of the movable furniture part 2 along the guide device 3 on the path 13 can be determined unambiguously, even after a power failure or other problems. The absolute distance covered can be calculated unambiguously without a reference run, thereby ensuring proper operation, in particular a positionally adapted drive that is particularly resistant to errors.

[0154] Furthermore, the determined position can be used to accurately identify whether the electric drive 6 should apply force to the movable furniture part 2 in the direction of the closed or open position 30. For example, based on the position and, if necessary, the speed, it can be determined whether the operator of the movable furniture part 2 intends to move the movable furniture part 2 within the overrunning range or wishes to drive the movable furniture part 2 in the closing or opening direction. Furthermore, the speed profile transmitted to the movable furniture part 2 can be adapted so that a separate speed can be transmitted to any position along the guide. The position provides additional information on whether the movable furniture part 2 is freely movable within the overrunning range (possibly in both directions) or should be driven by the electric drive (in the closing or opening direction), as well as the extent to which force should be applied or the speed profile with which the movable furniture part 2 should be moved.

[0155] Figure 11 and Figure 12 The structural components of the electric drive 6 are shown. Figure 11 In the enlarged detail view, a protection body 78 integrated into the housing 47 can be seen, which protects the transmission (in particular the gear stage 55) from wear of the belt (drive belt 79).

[0156] Figure 12 The belt drive connected to the motor 7 is shown enlarged, with two belt tensioners 80 provided to transmit a favorable tension for driving the electric drive 6. Generally speaking, only one belt tensioner 80 or a plurality of belt tensioners 80 can also be provided, but the arrangement of two belt tensioners 80 on opposite sides of the drive belt 79 has proven particularly advantageous.

[0157] Figure 13a A gear stage 55 of the electric motor 7 is shown, wherein the electric motor 7 and the overrunning clutch 29 are coupled.

[0158] The electric machine 7 may generally include an overload protection clutch 68 , which is only schematically shown in dashed lines since it is not an absolutely necessary separate structural component.

[0159] Figure 13b and Figure 13a The only difference is the viewing direction.

[0160] Figure 14a and 14b As a structural component, an overrunning clutch 29 is shown, which comprises two gears 17, which can serve as a gear stage 55. The overrunning clutch 29 is generally not self-locking.

[0161] The technical details of this overrunning clutch 29 (especially a helical spring overrunning clutch) can be learned from EP2086372B2.

[0162] Since the overrunning clutch 29 is built into the electric drive device 6 , the overrunning clutch 29 can remain fixedly positioned on the body rail 4 .

[0163] Specifically, the electric drive 6 comprises an overrunning clutch 29, via which the movable furniture part 2 is decoupled from the drive of the electric motor 7 along the path 13 in the closing direction and in the opening direction (e.g., depending on the speed of the movable furniture part 2 or the position of the movable furniture part 2 ). Via the overrunning clutch 29 , the movable furniture part 2 can be moved between the open position 30 and the closed position (e.g., depending on the force applied to the movable furniture part 2 ) in an overrunning range decoupled from the drive of the electric drive 6 or can be driven by the electric drive 6 along the path 13 (typically in a sub-region of the path 13 ).

[0164] Generally speaking, an overload protection clutch 68 can also be provided, which decouples the motor 7 and the toothed rack 9 (e.g., depending on the speed or position of the movable furniture part 2). Due to the dual detachable connection of the toothed rack 9 (the detachable connection between the support device 10 and the toothed rack 9 and the retraction device 8), it acts as an overload protection clutch 68 when the gear wheel 17 of the electric drive 6 is engaged, making it possible to dispense with an integrated overload protection clutch 68. Generally speaking, it may be sufficient for only the toothed rack 9 to be detachably arranged on the support device 10 or only the support device 10 to be detachably arranged on the retraction device 8.

[0165] Figure 15An electric drive 6 arranged on one side of the guide device 3 is shown, wherein a motor 7 is activated in order to bring the movable furniture part 2 arranged on the fixed furniture part 1 into the closed position (activated in the closed position or via the closed position or, if necessary, into the overpressure position), and a further trigger sensor 65 (schematically indicated by a dashed line) is fixedly arranged on the second furniture panel 64 via the carcass rail 4 arranged on the second furniture panel 64.

[0166] The further trigger sensor 65 preferably comprises a damping device 12 or a buffer. The further trigger sensor 65 can be in data connection with the electric drive 6 via a radio connection or a cable connection. Due to the further trigger sensor 65, there is no need to manipulate the furniture part front 23. The further trigger sensor 65 preferably cooperates with the trigger sensor 59.

[0167] The arrangement comprises a stabilizing device 70 for stabilizing the movable furniture part 2 laterally along the guide device 3. Usually, the movable furniture part 2 itself provides sufficient lateral stability. It is conceivable to connect the stabilizing device 70 to the second interface 35 (see Figure 7a ).

[0168] Two further racks 19 are arranged on the guide device 3, which are arranged on the main body rail 4, wherein a synchronization rod 20 is arranged between the two further racks 19 for lateral stabilization of the two further racks 19. The teeth 18 of the further racks 19 are oriented upward in the vertical direction 15 and orthogonally to the orientation of the teeth of the rack 9, but this is not mandatory.

[0169] The synchronization rod 20 together with the two further racks 19 can be configured separately as an additional device, wherein at least one of the three components can be connected to the second interface 35 , the rack 9 , the car body rail 4 or the electric drive 6 .

[0170] There is a direct power connection (shown in dashed lines) between the two body rails 4. The power line 32 for the motor 7 can be guided by the body rails 4 or the rack 9 in order to power the ejection device 11, for example.

[0171] As schematically shown on the left side of the drawing, the rack 9 can include a coupling device 25, by means of which the rack 9 can be extended via a rack extension 26, wherein the rack 9 then consists of at least two rack segments 28 in the longitudinal direction 27. This makes it possible to provide a rack 9 of adjustable length, so that the dimensions of the rack 9 can be adjusted to the size of the guide device 3 or the extension distance along the path 13. It is generally also conceivable to design the rack 9 to be telescopic.

[0172] Figure 16The diagram shows the sensor angle (in degrees) plotted on the ordinate and the absolute displacement (in mm) along the path 13 plotted on the abscissa. The two position sensors 53, 54 can be used to unambiguously identify the position of the support rail 5 or the movable furniture part 2 on the path 13 via the relative rotational position.

[0173] In the diagram, a sensor angle intersection corresponding to a pull-out length of approximately 245 mm is marked with a square. This intersection corresponds to three complete rotations of the first position sensor 53 and five complete rotations of the second position sensor 54. The difference between the rotation angles is 36°, which uniquely defines the position. Another sensor angle intersection corresponding to an absolute displacement of approximately 165 mm is marked with a circle. This intersection corresponds to two complete rotations of the first position sensor and five complete rotations of the second position sensor 54. The difference between the rotation angles is 144°, which uniquely defines the position.

[0174] In this embodiment, the signal tolerance of first position sensor 53 is 60°, based on the maximum of six rotations required to unambiguously determine the position. Similarly, the signal tolerance of second position sensor 54 is 36°, based on a maximum of 10 rotations. Combined, the tolerances of first position sensor 53 and second position sensor 54 can be reduced to + / -30° and + / -18°, respectively, which are sufficient for accurately determining the absolute displacement using these two position sensors 53 and 54. If a given transmission ratio is used, such as in the case of a long path 13, redundant intersections may occur for determining the absolute displacement. This undesirable situation can be eliminated using entries in a storage unit or different transmission ratios. The use of auxiliary sensor systems is also conceivable.

Claims

1. A configuration system comprising: Fixing furniture parts (1), especially furniture bodies, A furniture part (2), in particular a drawer, which is movable relative to the fixed furniture part (1) a guide device (3), in particular a drawer extension guide, for guiding the movable furniture part (2) relative to the fixed furniture part (1), and at least one electric drive (6) for at least partially automatically moving the movable furniture part (2) relative to the fixed furniture part (1), the electric drive comprising an electric motor (7) which can be supplied with 230 V, The guide device (3) comprises at least one main guide rail (4) arranged on the fixed furniture part (1) and at least one supporting guide rail (5) arranged on the movable furniture part (2), wherein the at least one supporting guide rail (5) comprises at least one first interface (34) suitable for fixing an ejection device (11) and / or a retraction device (8) on the at least one supporting guide rail (5), and the at least one main guide rail (4) comprises at least one second interface (35) suitable for fixing a drive element (36) for the ejection device (11) and / or the retraction device (8) on the at least one main guide rail (4), characterized in that the at least one electric drive device (6) is arranged or can be arranged on the at least one second interface (35), and at least one rack (9) for transmitting force from the at least one electric drive device (6) to the at least one supporting guide rail (5) is arranged or can be arranged on the at least one first interface (34).

2. The configuration system according to claim 1, wherein: The at least one electric drive (6) is arranged on the at least one car body rail (4) substantially completely below the movable component (2) in the use position (14) of the configuration system.

3. The configuration system according to claim 1 or 2, wherein: The motor (7) Designed as a preferably brushless outer rotor motor (66), disk rotor motor or rod motor, and / or comprising two or three gear stages (55) with gears (17) for driving the movable furniture part (2), and / or is arranged inside a housing (47), wherein in the use position (14) of the arrangement system, the thickness (67) of the housing in the vertical direction (15) is less than 100 mm, preferably less than 80 mm, particularly preferably less than 600 mm, and / or It includes an overrunning clutch (29) and / or an overload protection clutch (68).

4. A configuration system as claimed in any one of the preceding claims, wherein: Two body rails (4) are provided and a direct power connection exists between the two body rails (4), and / or a power line (32) for the motor (7) is guided via at least one body rail (4) and / or the at least one rack (9).

5. A configuration system as claimed in any one of the preceding claims, wherein: The at least one electric drive (6) is fixedly arranged on the at least one body rail (4) and is continuously connected to the at least one rack (9) for transmitting movement along the entire path (13) of the movable furniture part (2) along the guide device (3), wherein it is preferably provided that: the electric drive (6) includes a gear (17) meshing with the rack (9) and / or the at least one rack (9) is at least partially arranged between the at least one electric drive (6) and the at least one support rail (5).

6. A configuration system as claimed in any one of the preceding claims, wherein: The movable furniture part (2) comprises a furniture part front (23) in the use position (14) of the configuration system, and the at least one electric drive (6) on the at least one carcass rail (4) is arranged in the region of a free end (24) of the at least one carcass rail (4) facing the furniture part front (23), preferably substantially flush with the free end (24).

7. A configuration system as claimed in any one of the preceding claims, wherein: Arranged or capable of being arranged on the at least one second interface (35) is at least one locking device (69) for preventing the movable furniture part (2) from moving relative to the fixed furniture part (1) and / or at least one stabilizing device (70) for stabilizing the movable furniture part (2) laterally along the guide device (3), and / or at least one driving member (36) for an ejection device (11) and / or a retraction device (8).

8. A configuration system as claimed in any one of the preceding claims, wherein: At least one ejection device (11) and / or retraction device (8) is arranged on the at least one first interface (34).

9. A configuration system as claimed in any one of the preceding claims, wherein: The at least one electric drive device (6) can be connected or connected to the at least one second interface (35), and / or the at least one rack (9) can be connected or connected to the at least one first interface (34) via a snap connection (71) and / or via a rotation process for hooking.

10. A configuration system as claimed in any one of the preceding claims, wherein: The at least one electric drive device (6) comprises a carrier (22) which is preferably plate-shaped and is arranged on the at least one main body rail (4), wherein the carrier comprises an inclined surface (72) which is designed so that the at least one electric drive device (6) can be installed, preferably rotated, onto the at least one main body rail (4) without collision in the installed state.

11. A configuration system as claimed in any one of the preceding claims, wherein: At least one trigger sensor (59) is provided for activating the motor (7) when the movable furniture part (2) is in the closed position, wherein the at least one electric drive (6) has a housing (47) and the at least one trigger sensor (59) is arranged on the housing (47) so as to contact the movable furniture part (2), wherein it is preferably provided that the at least one trigger sensor (59) comprises a plunger (60) and / or a microswitch (61) and / or can be triggered tactilely and / or electronically.

12. A configuration system as claimed in any one of the preceding claims, wherein: The fixed furniture part (1) comprises two furniture panels (64) which are oriented vertically and parallel to one another in the use position (14), wherein exactly one electric drive (6) is fixedly arranged on one of the two furniture panels (64), preferably indirectly via the at least one body rail (4), wherein, in order to start the motor (7) when the movable furniture part (2) arranged on the fixed furniture part (1) is in the closed position, at least one further triggering sensor (65) is fixedly arranged on the second furniture panel (64), preferably on the body rail (4) located on the second furniture panel (64), wherein it is preferably provided that the at least one further triggering sensor (65) comprises a damping device (12) and / or a buffer and / or is in data connection or can be formed into a data connection with the electric drive (6) via a radio connection and / or a cable connection.

13. A configuration system as claimed in any one of the preceding claims, wherein: The movable furniture part (2) is movable, preferably translatable, along the guide device (3) relative to the fixed furniture part (1) on a path (13), wherein at least one displacement measuring device (33) is provided for determining the position of the movable furniture part (2) relative to the fixed furniture part (1), wherein the position can be determined, preferably univocally determined, by the at least one displacement measuring device (33) in the form of an absolute displacement traversed by the movable furniture part (2) relative to the fixed furniture part (1).

14. A configuration system as claimed in any one of the preceding claims, wherein: At least one lighting device (31) is provided, in particular fixed relative to the fixed furniture part (1), wherein the at least one lighting device (31) is arranged on the at least one electric drive (6) and / or on a power supply line (32) of the at least one electric drive (6).

15. A configuration system as claimed in any one of the preceding claims, wherein: At least one retraction device (8) for the movable furniture part (2) and at least one toothed rack (9) operatively connected to the at least one electric drive (6) are provided, wherein the at least one retraction device (8) is arranged, preferably directly, on the at least one supporting rail (5), and the at least one toothed rack (9) is arranged, preferably indirectly, on the at least one supporting rail (5), wherein the at least one toothed rack (9) is detachably arranged on at least one supporting device (10), and the at least one supporting device (10) is detachably arranged on the at least one retraction device (8).

16. An electric drive (6) for an arrangement system as claimed in any one of the preceding claims, comprising an electric motor (7), which can be supplied with 230 V in particular, for at least partially automatically moving a movable furniture part (2) relative to a fixed furniture part (1), wherein: The electric drive (6) comprises a carrier (22) which is preferably plate-shaped and is intended to be arranged on a main body rail (4) of a guide device (3), characterized in that the carrier (22) comprises an inclined surface (72) which is designed so that the electric drive (6) can be mounted, preferably rotated, onto a main body rail (4) arranged on the fixed furniture part (1) without collision in the mounted state.

17. The electric drive device (6) according to claim 16, wherein: The electric drive (6) has a longitudinal direction (27), and the inclined surface (72) of the carrier (22) is oriented at an acute angle preferably between 5° and 30° relative to the longitudinal direction (27), and / or the inclined surface (72) for being arranged on the body rail (4) is arranged on a free end (73) of the carrier (22) that preferably protrudes transversely to the electric drive (6), and / or is spatially spaced apart from the electric drive (6) and / or the motor (7).

18. The electric drive device (6) according to claim 16 or 17, wherein: At least one coupling device (74) is provided on the carrier (22) for connecting to a second interface (35) of the main body rail (4), wherein the at least one coupling device (74) is designed in the form of a hook (75) - preferably punched out and / or bent from a sheet material - wherein it is preferably provided that: the electric drive device (6) includes at least one further hook (76) as a mating support for connecting the electric drive device (6) on the main body rail (4) to the carrier (22), and / or the at least one coupling device (74) and / or the at least one further hook (76) at least partially overlap with an opening (77) in the carrier (22) or the main body rail (4).

19. The electric drive device (6) according to any one of claims 16 to 18, wherein: The electric drive (6) has a microcontroller (37), which includes a computing unit and a storage unit that is data-connected or can be data-connected to the computing unit, wherein the microcontroller (37) can determine a model of the movable furniture part (2) based on at least one static data set stored in the storage unit and / or can calculate a predicted movement trajectory of the movable furniture part (2) along the guide device (3) based on at least one dynamic data set.

20. A method for retrofitting at least one electric drive (6) to a guide device (3) in the installed state of the guide device (3), characterized in that The following method steps are carried out in particular in chronological order: providing at least one electric drive (6), in particular as claimed in one of claims 16 to 19, for at least partially automatically moving the movable furniture part (2); Mounting a guide device (3), preferably a drawer extension guide device, on a fixed furniture part (1), preferably a furniture body, for guiding a movable furniture part (2), preferably a drawer, relative to the fixed furniture part (1); If necessary, removing the ejection device (11), the retraction device (8), the driver (36) for the ejection device (11) or the driver (36) for the retraction device (8) from the guide device (3); Arranging the at least one electric drive (6), preferably substantially entirely below the movable furniture part (2) to be moved, on at least one second interface (35) of at least one body rail (4) of the guide device (4); At least one toothed rack (9) is arranged on at least one first interface (34) of the at least one supporting rail (5) for transmitting force from the at least one electric drive (6) to the at least one supporting rail (5) of the guide device (3).

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