Computer-assisted method for moving a movable furniture part, microcontroller, and computer programme product

Abstract

The invention relates to a method for moving a movable furniture part (2), in particular a drawer, relative to a stationary furniture part (1), in particular a furniture carcass, along a guiding mechanism (3), in particular a drawer pull-out guide, by means of at least one electric drive device (6), in particular an electric drive device which can be supplied with 230 V, for automatically moving at least certain regions of the movable furniture part (2) relative to the stationary furniture part (1) via an electric motor (17), in which method the following method steps are carried out, preferably in chronological order: a microcontroller (37), comprising a computing unit and a memory unit that either is or can be connected to the computing unit in a data-transmitting manner, determines a model of the movable furniture part (2) depending on at least one static dataset stored in the memory unit; the movable furniture part (2) is manually moved either from an open position (30) or a position between the open position (30) and a closed position towards the closed position, and / or vice versa; and the microcontroller (37) calculates a predicted movement trajectory of the movable furniture part (2) along the guiding mechanism (3) depending on at least one dynamic dataset.

Description

[0001] Computing unit-supported method for moving a movable piece of furniture, microcontroller, and computer program product

[0002] The invention relates to a computing unit-supported method for moving a movable furniture part, in particular a drawer, relative to a stationary furniture part, in particular a furniture carcass, along a guide device, in particular a drawer pull-out guide, by means of at least one electrical drive device, in particular one which can be supplied with 230 V, for the at least partially automated movement of the movable furniture part relative to the stationary furniture part via an electric motor. Furthermore, the invention relates to a microcontroller for carrying out such a method, an electrical drive device for the at least partially automated movement of a movable furniture part relative to a stationary furniture part via an electric motor with at least one such microcontroller, an arrangement comprising such an electrical drive device and a stationary furniture part, and a computer program product.

[0003] A method for moving a movable furniture part is already known from EP 1 323 364 A1, in which a drawer is moved by means of a drive unit controlled by a triggering device. The triggering device comprises two manually operable pushbutton switches - for example a drag switch - arranged on the drawer for three different switching states. The triggering device can be initiated depending on a relative position of furniture part components or by tapping a furniture part component in order to

[0004] to generate a switching pulse.

[0005] A method for moving a movable furniture part is already known from document EP 1 323 363 A1, in which a drive unit is controlled by a control device and a force measuring device in order to automatically and bidirectionally support a movement desired by the user of a drawer. In addition, a position measuring device can be present, which generates a position signal by means of which a current actual position, actual speed and actual acceleration can be calculated as a function of the measured position. Setpoints can also be determined, so that essentially the same force expenditure can be generated with varying loads in the drawer.

[0006] A method for moving a movable furniture part is also already known from the document EP 2 642 899 A1, in which two sensors can generate different trigger sensitivities when force is exerted on a drawer.

[0007] A disadvantage of the state of the art is that the existing control units for moving the movable furniture part – particularly due to limited computing and storage capacity – can only provide rudimentary controls for the movement sequence of the movable furniture part. This results in undesirably disharmonious movement trajectories – particularly with changing force applications and / or loads of the movable furniture part or with varying guide devices. This can result in inappropriately high or low speeds of the movable furniture part, which prevent movement to a desired end position of the movable furniture part and / or can cause damage.

[0008] The objective technical object of the present invention is therefore to provide a method which is improved over the prior art, as well as an electric drive device, an arrangement and a computer program product in which the disadvantages of the prior art are at least partially eliminated and which are characterized in particular by increased functionality.

[0009] This problem is solved by the features of claim 1.

[0010] It is therefore provided according to the invention that the following process steps are carried out, in particular in chronological order:

[0011] - a microcontroller, comprising a computing unit and a memory unit which is or can be connected to the computing unit in data connection, determines in dependence on at least one static value stored in the memory unit

[0012] dataset a model of the movable furniture part

[0013] - the movable furniture part is mounted on a

[0014] Open position or a position between the

[0015] Open position and a closed position manually moved towards the closed position and / or vice versa

[0016] - the microcontroller calculates a predicted

[0017] Movement trajectory of the movable furniture part along the guide device

[0018] This makes it possible to generate support detection for a movement of the movable furniture part, whereby the movable furniture part can be driven in the closing or opening direction, for example, in such a way that the movable furniture part is moved into an end position (closed position or open position) essentially silently and / or without significant force being applied to the component parts. In general, a partial drive or a complete drive—particularly over the entire travel distance—into the end position is possible.The movable furniture part can be subjected to force by the at least one electric drive device as a function of the predicted movement trajectory, wherein the static data set can be available as a function of the movable furniture part as such (without underlying movement data of the movable furniture part such as speed) and the dynamic data set can be available as a function of the manual movement of the movable furniture part (for example the actual speed of the movable furniture part), so that the microcontroller can calculate the predicted movement trajectory of the movable furniture part as a function of the manual movement of the movable furniture part.

[0019] As stated at the outset, protection is also sought for a microcontroller for carrying out such a method, comprising a computing unit and a memory unit which is or can be connected to the computing unit in data communication, wherein the computing unit is configured to determine a model of a movable furniture part as a function of at least one static data set stored in the memory unit and / or to calculate a predicted movement trajectory of the movable furniture part along a guide device as a function of a dynamic data set stored in the memory unit.

[0020] As stated at the outset, protection is also sought for an electric drive device for the at least partially automated movement of a movable furniture part relative to a fixed furniture part via an electric motor with at least one such microcontroller.

[0021] As stated at the outset, protection is also sought for an arrangement comprising such an electric drive device and a fixed furniture part, in particular a furniture carcass, wherein the fixed furniture part comprises two furniture panels oriented vertically and parallel to one another in the use position of the arrangement, wherein exactly one electric drive device is arranged stationary on one of the two furniture panels, preferably indirectly via a carcass rail of a guide device, wherein at least one further trigger sensor for activating the electric motor for a closed position of a movable furniture part arranged on the fixed furniture part is arranged stationary on the second furniture panel, preferably a carcass rail arranged on the second furniture panel, wherein it is preferably providedthat the at least one further trigger sensor comprises a damping device and / or a buffer and / or is or can be connected to the electric drive device via a radio connection and / or a cable connection.

[0022] It is also possible for the arrangement to comprise an electric drive device without a corresponding microcontroller.

[0023] As stated at the outset, protection is also sought for a computer program product comprising instructions which, when executed by a computing unit, cause the computing unit to carry out such a process from a memory unit which is in a data connection with the computing unit or can be brought into such a connection.

[0024] Advantageous embodiments of the invention are defined in the dependent claims.

[0025] Further details and advantages of the present invention are explained in more detail below with reference to the description of the figures and to the exemplary embodiments shown in the drawings. Therein: Fig. 1a, 1b show a guide device of a piece of furniture driven by an electric drive device according to a preferred embodiment in a perspective view with an enlarged detail in the area of ​​the electric drive device,

[0026] Fig. 2-4 the guide device according to the embodiment of Fig. 1b in perspective view with enlarged detail representations in the area of ​​a connection of a rack to a drawer rail,

[0027] Fig. 5 shows the guide device according to the embodiment of Fig. 1b in a view from above with an enlarged detail in the area of ​​a coupling between the rack and a gear of the electric drive device,

[0028] Fig. 6 shows the guide device according to the embodiment of Fig. 1b in a view from below with an enlarged detail in the area of ​​a connection of the electric drive device to a carcass rail, Fig. 7a, 7b shows the electric drive device according to the embodiment of Fig. 1b with a support for coupling to the carcass rail in a view from above and a perspective view,

[0029] Fig. 8a, 8b the electric drive device according to the embodiment of Fig. 1b with disassembled housing in two perspective views from a front and a rear side,

[0030] Fig. 9, 10 show a position measuring device of the electric drive device according to the embodiment of Fig. 1b in an exploded view and in a view from above with an enlarged detail in the area of ​​position sensors, Fig. 11, 12 show the electric drive device according to Fig. 8a in a perspective view with an enlarged detail in the area of ​​a protective body in the housing for protecting a gear from abrasion from a belt as well as a belt drive with belt tensioners on both sides,

[0031] Fig. 13a, 13b show a gear arrangement of the electric drive device according to the embodiment of Fig. 1b in two perspective views,

[0032] Fig. 14a, 14b a freewheel clutch of the electric drive device according to the embodiment of Fig. 1b in a plan view and a perspective view,

[0033] Fig. 15 shows a guide device according to a further preferred embodiment with an electric drive device arranged on one side in a perspective view,

[0034] Fig. 16 is a diagram illustrating a clear position measurement or absolute path measurement for a movable furniture part along a guide device by a path measuring device according to the embodiment of Fig. 9 via sensor angle over extension lengths.

[0035] Fig. 1a shows a piece of furniture with movable furniture parts 2 in the form of drawers, which can be moved relative to a fixed furniture part 1 in the form of a furniture body via a guide device 3 in the form of a drawer pull-out guide by an electric drive device 6.

[0036] The movable furniture parts 2 can be divided into a first movable furniture part 41 and further movable furniture parts 42, wherein the further movable furniture parts 42 are arranged below the first movable furniture part 41 in the use position 14 of the arrangement.

[0037] 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 flap, a cabinet with a folding and / or sliding door, or the like.

[0038] Fig. 1b shows the furniture with a hidden movable furniture part 2 in an arrangement comprising the fixed furniture part 1, the 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.

[0039] The arrangement comprises an electric drive device 6 for at least partially automated movement of the movable furniture part 2 relative to the stationary furniture part 1, comprising an electric motor 7 that can be supplied with 230 V. The power supply for the electric motor 7 is generally arbitrary and can also be operated with different voltages. In general, a voltage can also be lower—particularly due to local or regional power grid characteristics—in order to supply the electric motor 7 with sufficient power.

[0040] The guide devices 3 each comprise a carcass rail 4 arranged on the fixed furniture part 1 and a drawer rail 5 arranged on the movable furniture part 2. In general, a center rail can be arranged at least partially between the carcass rail 4 and the drawer rail 5, although this is generally not necessary - in particular for full extension of the movable furniture part 2 due to the front-side arrangement of the electric drive device 6 and the connection to a rack 9. The detailed section shows an enlarged view of the connection of the electric drive device 6 to the carcass rail 4 and a rack 9 to the drawer rail 5, the drawer rail 5 comprising a first interface 34 (optionally a plurality of first interfaces 34) which is suitable for fixing an ejection device 11 and a closing device 8 to the drawer rail 5.

[0041] A closing device 8, which is generally not required, is arranged at the first interface 34. Alternatively or additionally, an ejection device 11—particularly a mechanical or electrical one—can be arranged at the first interface 34. The ejection device 11 preferably comprises a tip-on function, with which an ejection process can be triggered by an overpressing movement.

[0042] The body rail 4 comprises a second interface 35 (optionally a plurality of second interfaces 35) which is suitable for fixing a driver 36 for the ejection device 11 or the closing device 8 to the body rail 4. The second interface 35 is located (not visible in the view) on the underside of the body rail 4 (see Fig. 6).

[0043] The electric drive device 6 is arranged at the second interface 35 and the rack 9 for transmitting power from the electric drive device 6 to the drawer rail 5 is arranged at the first interface 34.

[0044] The electrical drive device 6 is connected via a clip connection 71 and via a pivoting process for hanging it in (cf. Fig. 6). The toothed rack 9 is connected via a clip connection 71 during a translatory insertion process into the closing device 8 or the drawer rail 5. For example, the clip connection 71 (on the toothed rack 9, the closing device 8 or the drawer rail 5) can have a latchable web or a latching boss 81, wherein hooks 75 are generally also possible as an alternative or in addition. In the exemplary embodiment, the toothed rack 9 is connected to the closing device 8, which can optionally have an ejection device 11 or to which an ejection device 11 can optionally be connected (replacing the closing device 8 is also conceivable). A direct connection of the toothed rack 9 to the drawer rail 5 is also possible.An indirect connection of the electric drive device 8 (for example via a driver 36 for the closing device 8) is also possible, although a direct connection is preferred.

[0045] The rack 9 is to be designed to be so wide that equivalent means such as a belt (optionally with a toothing 18), a cable or the like for transmitting power between the electric drive device 6 and the drawer rail 5 are also included.

[0046] The electric drive device 6 is arranged in the use position 14 of the arrangement essentially completely below the movable furniture part 2 on the carcass rail 4, wherein if necessary a furniture part front 23 (for example for contacting a trigger sensor 59) can protrude in the vertical direction 15 below an upper side of the electric drive device 6 or the electric drive device 6. A bottom of the movable furniture part 2 is arranged completely above the electric drive device during the movement of the movable furniture part. The movable furniture part 2 moves over the electric drive device 6 during use. The electric drive device 6 is stationary on the

[0047] Carcass rail 4 is arranged and is in constant connection to the rack 9 for movement transmission over an entire path 13 for the movable furniture part 2 along the guide device 3.

[0048] The movable furniture part 2 comprises a furniture part front 23, wherein the electric drive device 6 is arranged on the carcass rail 4 in the use position 14 of the arrangement in the region of a free end 24 of the carcass rail 4 facing the furniture part front 23.

[0049] In the closed position, the electric drive device 6 is arranged flush with the drawer rail 5 or the rack 9. The rack 9 can compensate for any loss of extension caused by the fastening of the cabinet rail and / or by the use of a specific trigger sensor type.

[0050] The electric drive device 6 is arranged substantially flush with the free end 24 of the body rail 4 both in the closed position and in the open position 30.

[0051] The fixed furniture part 1 comprises two furniture panels 64 oriented vertically and parallel to one another in the use position 14, wherein exactly one electric drive device 6 is arranged stationary on one of the two furniture panels 64 indirectly via the carcass rail 4. In general, however, a further electric drive device 6 or an additional rack 9 can also be arranged on the opposite furniture panel 64, although this is not absolutely necessary.

[0052] In the use position 14 of the arrangement, the movable furniture part 2 comprises a furniture part front 23, wherein the electric drive device 6 is arranged on the carcass rail 4 in the region of a free end 24 of the carcass rail 4 facing the furniture part front 23 (essentially flush with the free end 24 or the drawer rail 5 in the closed position or the toothed rack 9 in the closed position).

[0053] Fig. 2 shows the connection of the electric drive device 6 to the carcass rail 4 without surrounding furniture parts 1, 2, wherein the drawer rail 5 is fully extended over the path 13 as an extension path for the movable furniture part 2.

[0054] The enlarged detail shows the connection of the toothed rack 9 to the drawer rail 5 or the closing device 8, wherein an ejection device 11 is indicated in dotted line, which can be arranged alternatively or additionally at the first interface 34. It is also conceivable to provide a locking device 69 for inhibiting a movement of the movable furniture part 2 at the first interface 34. A damping device 12 is integrated in the closing device 8, wherein the damping device 12 can also be present as a separate component.

[0055] Fig. 3 shows the guide device 3 with the electric drive device 6 for the automated movement of the movable furniture part 2 or the drawer rail 5 with the electric motor 7 (which can be supplied with 230 V).

[0056] The closing device 8 for the movable furniture part 2 and the rack 9 operatively connected to the electric drive device 6 are mounted, wherein the closing device 8 is arranged directly on the drawer rail 5 and the rack 9 is arranged indirectly via the closing device 8 on the first interface 34 of the drawer rail 5. In general, the rack 9 can alternatively or additionally contact the drawer rail 5 directly. The rack 9 is detachably arranged on a support device 10 and the support device 10 is detachably arranged on the closing device 8.

[0057] In this context, the detachable connection of the carrier device 10 means a connection that can be released without force, preferably without tools.

[0058] The support device 10 is arranged in the horizontal direction 16 between the rack 9 and the closing device 8, wherein in general a rack 9 pointing downwards in the vertical direction 15 can also be provided.

[0059] The support device 10 or the closing device 8 can comprise a mechanical or electrical ejection device 11, wherein a damping device 12 in the closing device 8 for damping a movement of the movable furniture part 2 in a region of the closed position.

[0060] The stationary electric drive device 6 is in constant connection to the rack 9 for transmitting movement over the entire path 13 along the guide device 3, wherein the electric drive device 6 comprises a gear 17 meshing with the rack 9 in connection with the electric motor 7.

[0061] The rack 9 is arranged laterally between the electric drive device 6 and the drawer rail 5 over the entire path 13.

[0062] In this embodiment, exactly one electric drive device 6 is provided on one of the two carcass rails 4 of the guide devices 3 and exactly one rack 9 is provided on one of the two drawer rails 5 of the guide devices 3, wherein in general two electric drive devices

[0063] 6 can be used on both body rails 4 .

[0064] The electric drive device 6 or any additional power sink present—such as the lighting device 31 in Fig. 6—is supplied with power via the body rail 4, whereby the power supply can alternatively or additionally be routed via the rack 9. The power supply can be routed between the two body rails 4 of the two provided guide devices 3, for example, to supply power to an additional trigger sensor 65. A separate power supply for each body rail 4 (or rack 9) is also possible.

[0065] In the use position 14 of the arrangement, a toothing 18 of the rack 9 is oriented in the horizontal direction 16 in a direction pointing away from the drawer rail 5, although in general an orientation in the vertical direction 15 downwards is also possible.

[0066] The toothed rack 9 is coupled to the gear 17 of the electric drive device 6, wherein the toothed rack 9 is bendable (via a connection to the support device 10 or through the connection of the support device 10) in the horizontal direction 16 relative to the drawer rail 5 (pivoting is also conceivable) and is thus mounted for limited lateral movement. For example, the toothed rack 9 could also be mounted for limited movement in the vertical direction 15 (away from the gear 17) with a vertical toothing 18. This enables a secure coupling to the elastic drive device 6, wherein assembly effort is also reduced due to a reduced tendency to tilt, as well as noise development due to elastic or flexible deformation.For example, the rack 9 can be preloaded in the direction of the gear 17 by a spring or by its own elasticity in order to ensure a positive connection to the electric drive device 6 during operation.

[0067] Particularly preferably, the rack 9 is designed to be flexible in order to be able to ensure a safe, harmonious and continuous transmission of movement through elastic deformation.

[0068] The detachable connection - in particular the double detachable connection - makes it possible to constitute an overload clutch via the components involved, whereby an overload clutch 68 of the electric drive unit 6 can be dispensed with. For example, a tolerance in the interaction between the gear 17 and the rack 9 caused by increased loading of the rack 2 (for example in the event of vibrations or improper forces acting on the movable furniture part 2) can prevent complete decoupling between the electric drive device 6 and the rack 9 - without losing the effect of an overload clutch, whereby the position of the drawer rail 5 relative to the carcass rail 4 remains clearly determinable via the relative position between the rack 9 and the gear 17.Decoupling from the electric motor 7 is not required and can be generated, for example, via a freewheel clutch 29. A required reference movement can be prevented, with the carrier device 10 acting as a coupling device.

[0069] Fig. 4 shows the guide device 3 with an enlarged detail of the drawer rail 5 in the area of ​​a coupling device on the rear of the furniture part for the movable furniture part 2. The drawer rail 5 comprises a bearing device 21 for the toothed rack 9, wherein the bearing device 21 is arranged on the drawer rail 5 and the toothed rack 9, wherein a carrier 22 of the electric drive device 6 for connecting the electric drive device 6 to the carcass rail 4 can be traversed by the toothed rack 9 and the bearing device 21 during a relative movement between the drawer rail 5 and the carcass rail 4.

[0070] Fig. 5 shows the guide device 3, wherein the coupling between a gear 17 of the electric drive device 6, which is in operative connection with the electric motor 7, and a toothing 18 of the rack 9 is shown in an enlarged detail.

[0071] The electric motor 7 (or the electric drive device 6 ) comprises, in the coupling with gear stages 55 of the electric drive device 6, a gear 17 meshing with the rack 9.

[0072] In the use position 14 of the arrangement, the gear wheel 17 is oriented in the horizontal direction 16 in the direction of the drawer rail 5, whereby a gear wheel 17 of the electric drive device 6 oriented upwards in the vertical direction 15 is also possible.

[0073] The rack 9 is arranged between the electric drive device 6 and the drawer rail 5. The guide device 3 is in the closed position, whereby a movable furniture part 2 arranged on the drawer rail 5 would be located in an end position.

[0074] To measure the power transmission through the electrical

[0075] In order to improve the energy transmitted by the drive device 6 to the movable furniture part with regard to a time and / or an intensity, the electric drive device is controlled by a microcontroller 37, which functions as a control and / or regulating device 44 and acts as a computing unit.

[0076] An exemplary computing unit-supported method for moving the movable furniture part 2 relative to the fixed furniture part 1 along the guide device 3 by the electric drive device 6 for at least partially automated movement of the movable furniture part 2 relative to the fixed furniture part 1 via an electric motor 17 can be implemented as follows: The microcontroller 37, comprising the computing unit and a memory unit in data communication with the computing unit, determines a model of the movable furniture part 2 depending on at least one static data set stored in the memory unit,The movable furniture part 2 is moved manually from a partial or complete opening position 30 and a closing position towards the closing position or vice versa, and the microcontroller 37 calculates a predicted movement trajectory of the movable furniture part 2 along the guide device 3 depending on at least one dynamic data set.

[0077] The static data set can include, for example, a mass of the movable furniture part 2, a friction of the movable furniture part 2 on the guide device 3, a dimensioning of the movable furniture part 2, a load in the movable furniture part 2, a dimensioning of the guide device 3, a path 13 along the guide device 3, tolerance limits, etc.

[0078] The travel distance 13 can generally be determined by an extension path for the movable furniture part 2 or a longitudinal extension of the rack 9, over which at least a partial drive is provided by the electric drive device 6 via an automated control system. A drive over the travel distance 13 is possible; a drive over partial areas of the travel distance 13 is preferred.

[0079] The dynamic data set can, for example, comprise an absolute path traveled by the movable furniture part 2 relative to the stationary furniture part 1, a speed of the movable furniture part 2, a load in the movable furniture part 2, an acceleration profile of the movable furniture part 2 (generally determined via a speed measuring device 52), an acceleration path of the movable furniture part 2, a kinetic energy of the movable furniture part 2, etc.

[0080] The static data set or the dynamic data set can be determined in a reference run of the movable furniture part 2 or over a large number of reference runs—possibly with varying loads on the movable furniture part 2. Alternatively or additionally, it is possible to store static data sets in a storage unit without a reference run and to compare static data sets or dynamic data sets with data sets stored in the storage unit or to correct them depending on the stored data sets.

[0081] The following aspects are provided for in this embodiment, but do not have to be implemented:

[0082] Depending on the predicted movement trajectory, the microcontroller 37 makes a decision as to whether the electric drive device 6 should apply force to the movable furniture part 2 or whether the movable furniture part 2 should be manually movable within a freewheeling range. The electric motor 7 includes a freewheel clutch 29, which disconnects the power transmission from the electric motor 7 to the movable furniture part 2 in the freewheeling range.

[0083] The microcontroller 37 calculates, depending on 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 the application of force via the electric drive device 6, wherein a speed of the movable furniture part 2 upon entry into the closed position is determined as a function of a damping power of a damping device 12 arranged on the movable furniture part 2 or the fixed furniture part 1.

[0084] The microcontroller 37 defines, depending on the predicted movement trajectory, a speed profile for the drive of the movable furniture part 2 via the electric drive device 6, wherein the electric drive device 6 applies force to the movable furniture part 2 depending on the speed profile. The speed profile is created depending on the at least one static data set or the at least one dynamic data set, wherein the movable furniture part 2 is supplied with energy at a speed of the movable furniture part 2 below the speed profile and is braked by the electric drive device 6 at a speed of the movable furniture part 2 above the speed profile, and a force transmission to the movable furniture part 2 is initiated at a predefined speed threshold value or a predefined position threshold value.

[0085] The microcontroller 37 is equipped with a learning algorithm in the form of artificial intelligence comprising a neural network with machine learning or deep learning, whereby the

[0086] Learning algorithm the predicted movement traj ectories of a

[0087] History can be analyzed and compared. The history of predicted movement trajectories is used, depending on the respective static data sets or dynamic data sets, for future movement trajectories to be predicted, future speed profiles, or future decisions regarding the application of force to the movable furniture part 2.

[0088] Movement sequences of the movable furniture part 2 along a guide device 3 are used as training data for the artificial intelligence. It has proven particularly advantageous to use different guide devices 3 and varying force applications or loads on the movable furniture part 2 to train the learning algorithm. Movement sequences on the specific guide device and the specific movable furniture part 2 can be added to the training data—especially continuously—for learning purposes.

[0089] The electric drive device 6 remains stationary on the body rail 4 during a movement of the movable furniture part 2 and is in constant connection with the rack 9 arranged on the drawer rail 5.

[0090] The movable furniture part 2 can be driven via the drawer rail 5 starting from the open position 30 or a position between the open position 30 and the closed position over a whole path 13 up to the closed position and to the open position 30 or only over a part of the path 13 by the electric drive device 6, wherein a force is applied by the electric drive device 6 starting from the closed position in the direction of the

[0091] Opening position 30 is initiated by an overpressure movement of the movable furniture part 2 or via an exclusively electronic trigger sensor 59. The movable furniture part 2 can be moved manually in a non-driven section of the path 13 in a free-running area, so that no force is applied by the electric motor 7 to the movable furniture part 2.

[0092] Driven sections of the path 13 have proven to be particularly advantageous in the direction of the open position 30 - in particular starting from the closed position - between 50 mm and 150 mm and in the direction of the closed position - in particular starting from the fully open position 30 - between 5 mm and 20 mm.

[0093] A movement of the movable furniture part 2 toward the closed position or the open position 30 can be dampened, braked, or locked via the electric drive device 6, wherein the movable furniture part 2 is subjected to force in the direction of the closed position by a closing device 8 in the region of the closed position. However, a closing device 8 is not absolutely necessary; the closing device 8 can be replaced, for example, by the electric drive device 6.

[0094] An algorithm or a computer program product comprising instructions for executing 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 a - in particular non-volatile - data carrier.

[0095] The computing unit of the microcontroller 37 or of the control and / or regulating device 44 is configured to determine a model of the movable furniture part 2 as a function of the at least one static data set stored in the memory unit and to calculate a predicted movement trajectory of the movable furniture part 2 along the guide device 3 as a function of the at least one dynamic data set—optionally stored in the memory unit. The electric drive device 6 comprises the computing unit.

[0096] 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 for application in the furniture industry with respect to a speed profile to be transferred to the movable furniture part 2. The storage capacity and the computing power can be adapted depending on a desired precision of the model or a desired accuracy of an output parameter to be generated from the model, such as the speed profile.

[0097] The speed profile preferably includes an acceleration amplitude, an acceleration path, the path 13 or a portion of the path 13 over which the movable furniture part 2 is to be subjected to speed or driven, a maximum speed, and the like. Input parameters can include, for example, a currently existing load on the movable furniture part 2 or a pulse transmission (discrete or continuous) from the operator of the movable furniture part 2 as a dynamic parameter.

[0098] By means of the method and in particular the microcontroller 37 or the control and / or regulating device 44, a support detection for a movement of the movable furniture part 2 can be generated, wherein the movable furniture part 2 can be driven in the closing direction or in the opening direction, for example, such that the movable furniture part 2 is moved into an end position (closed position or open position 30) essentially silently and / or without significant force acting on the component parts. In general, a partial drive or a complete drive—in particular over the entire travel distance 13—into the end position is possible.

[0099] Due to the increased functionality of the method compared to the prior art, undesirable disharmonious movement trajectories can be prevented - particularly in the case of changing force applications and / or loads of the movable furniture part 2 or varying guide devices 3 - whereby inappropriately high or low speeds of the movable furniture part 2 can be prevented, which do not allow movement into a desired end position of the movable furniture part 2 or can cause damage.

[0100] The microcontroller 37 can be understood as a control and / or regulating device 44 or can comprise such a computing unit.

[0101] Fig. 6 shows that the electric drive device 6 comprises a plurality of stationary lighting means 31 relative to the fixed furniture part 1, although generally only one lighting means 31 may be provided. The lighting means 31 is arranged on the electric drive device 6.

[0102] A lighting means 31 is in the form of a lamp 38 - designed as an LED lamp - and is partially integrated in the housing 47 of the electric drive device 6. A further lighting means 31 is in the form of a strip-like lighting means 40 - designed as an LED strip - and is arranged directly on the electric drive device 6. The dotted line indicates that the further lighting means 31 can also be in the form of a flat lighting means 39 - provided here as an LED surface. For example, the further lighting means 31 can also be arranged indirectly on the electric drive device 6 - for example by connecting a power line 32 (not shown for reasons of clarity) to the power line 32 of the electric drive device 6.

[0103] The lighting means 31 are oriented on an underside of the electric drive device 6 in such a way that the further movable furniture parts 42 can be illuminated by the lighting means 31, wherein the lighting means 31 are arranged on the electric drive device 6 of the first movable furniture part 41. However, the lighting means 31 can generally be arranged alternatively or additionally on the electric drive device 6 or the power line 32 of the electric drive device 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 means 31.

[0104] As will be explained in more detail in Fig. 9 and Fig. 10, a distance measuring device 33 is provided which can be used alternatively or in addition to the schematically indicated movement sensor 43 in order to detect a relative position - such as a complete or partial opening position 30 of the movable furniture part 2 relative to the fixed furniture part 1. The lighting means 31 can be activated as a function of the determined relative position by a control and / or regulating device 44 or a microcontroller 37. The distance measuring device 33 and the movement sensor 43 are arranged on the electrical drive device 6 and coupled to the power line 32 of the electrical drive device 6 and to the lighting means 31. In general, the distance sensor system 50 (see Fig.1b) can be used to determine the relative position for triggering the lighting means 31. The number of lighting means 31 is generally arbitrary.

[0105] The lighting means 31 are arranged between the two body rails 4 of the guide device 3, wherein the strip-like lighting means 40 is located laterally between the body rails 4 and extends completely linearly between the two body rails 4.

[0106] There is a direct power connection between the two carcass rails 4, which can be used to illuminate the movable furniture part 2, wherein the power connection or the power supply is guided via at least one of the two carcass rails 4 or the rack 9. The electric drive device 6 is arranged in a stationary manner on one of the two carcass rails 4 and the rack 9 is arranged on the drawer rail 5 of the guide device 3 for the continuous transmission of movement from a gear wheel 17 of the electric drive device 6 to the drawer rail 5. The electric drive device 6 and the power line 32 for the electric drive device 6 and for the lighting means 31 are arranged in a stationary manner on the guide device 3 - on the carcass rail 4.

[0107] The movable furniture part 2 can be subjected to force via the electric drive device 6 via a control and / or regulating device 44 or a microcontroller 37, so that the connection to the carcass rail 4 requires a dual function. The electric drive device 6 is designed to move the movable furniture part 2 at least in certain areas relative to the stationary furniture part 1, wherein the electric drive device 6 comprises the lighting means 31 arranged on the electric drive device 6 or the power line 32 of the electric drive device 6.

[0108] An exemplary method for illuminating a movable furniture part 2 (optionally the further movable furniture part 42) can be explained as follows: The movable furniture part 2 is moved relative to the stationary furniture part 1 along the guide device 3 by the one electric drive device 6 in an automated manner at least in some areas and the lighting means 31 arranged on the electric drive device 6 or on the power line 32 of the electric drive device 6 is activated so that the movable furniture part 2 is illuminated by the lighting means 31, wherein the movable furniture part 2 is moved and the lighting means 31 remains stationary.In particular, the further movable furniture part 42 is illuminated by the lighting means 31 as a function of a movement of the first movable furniture part 41, wherein the lighting means 31 remains stationary on the electric drive device 6 of the first movable furniture part 41. For this purpose, the relative position of the further movable furniture part 42 can be detected, wherein the lighting means 31 is activated as a function of the determined relative position via a control and / or regulating device 44 or the microcontroller 37. For example, an algorithm or a computer program product can be stored in the control and / or regulating device 44 or the microcontroller 37, which algorithm or computer program product comprises instructions which, when executed by a computing unit, cause the computing unit to carry out the method from a memory unit which has a data connection with the computing unit.Preferably, light is emitted in the visible wavelength range, wherein, for example, it can be provided that a wavelength range and / or an intensity of the illumination means 31 is changeable and / or adjustable - optionally via the electric drive device 6 or a receiving unit of the electric drive device 6 for configuring the electric drive device 6.

[0109] In general, an illuminating means 31 can alternatively or additionally emit, for example, light in the infrared range for heating or light in the UV wavelength range - in particular UVC wavelength range - for sterilization or disinfection. In this way, stored goods or a surface can be freed of unwanted microorganisms or an interior of the movable furniture part 2 can be regulated to a desired temperature in order, for example, to be able to irradiate food - in particular in combination with a vacuum drawer and optionally adjustable - with varying intensity or adjustable wavelength range. Positioning on a stationary electrical drive device 6 above the stored goods space is particularly suitable for this purpose. A locking device dependent on activation of the illuminating means 31 is also conceivable.

[0110] In principle, supplying energy by introducing current into the movable furniture part 2 is complex and laborious, since the movement of the movable furniture part 2 must be taken into account. Illuminating the movable furniture part 2, however, has the advantage of being able to clearly identify stored items in the movable furniture part 2 - particularly in poor lighting conditions or at night. Particularly in the case of an electric drive device 6 arranged in a fixed location on the carcass rail 4, the introduction of current via the carcass rail 4 can also be used in a dual function to utilize energy for supplying the lighting means 31 in a particularly advantageous manner.

[0111] Fig. 7a shows an electric drive device 6 with the electric motor 7 which can be supplied with 230 V, the electric drive device 6 comprising a plate-shaped support 22 for arrangement on the carcass rail 4 of the guide device 3, the support 22 comprising an inclined surface 72 which is such that the electric drive device 6 can be mounted on a carcass rail 4 arranged on the fixed furniture part 1 in the assembled state (cf. Fig. 6 in conjunction with Fig. 1b) in a collision-free manner via a pivoting-in process.

[0112] The electric drive device 6 has a longitudinal direction 27 and the inclined surface 72 of the carrier 22 is oriented at an acute angle between 5 ° and 30 ° relative to the longitudinal direction 27.

[0113] The inclined surface 72 for arrangement on the body rail 4 is arranged on a free end 73 of the support 22 projecting transversely from the electric drive unit 6 and spatially spaced from the electric drive device 6 and the electric motor 7.

[0114] The electric drive device 6 comprises two coupling devices 74 on the support 22 for connection to a second interface 35 of the carcass rail 4, wherein one coupling device 74 is generally sufficient. A coupling device 74 is in the form of a hook 75 punched and bent from a sheet metal, wherein a further hook 76 is provided on the support 22 as a counter-bearing for connecting the electric drive device 6 to the carcass rail 4. For example, a driver 36 for the closing device 8 or an ejection device 11 (optionally with tip-on function) can be arranged on the further hook 76. The further hook 76 can be used as a second interface 35.

[0115] A further coupling device 74 is provided (analogous to the two coupling devices 74 as hook / further hook 75, 76) as a clip connection 71. The further coupling device 74 is designed as a locking boss 81. The electric drive device 6 can be plugged onto the cabinet rail 4 in a translatory manner via the locking boss 81 and the carrier 22 and can be securely fixed to the cabinet rail 4 via the two hooks in a pivoting process, wherein a secure fixing can generally already be achieved via the locking boss 81.

[0116] During assembly, the locking projection 81 can elastically engage a corresponding recess for securing the component, thanks to a recess provided laterally in the material. A projection is visible between the hooks 75, 76, which acts as a rotational axis for a rotational movement after translational contact. In general, securing can also be provided, for example, by a snap-in web via a purely translational movement in the sense of a clip connection.

[0117] The coupling device 72 in the form of the hook 75 overlaps with an opening 77 in the carrier 22. The opening 77 has a dual function in connection with a manufacturing process of the carrier 22, since the opening 77 can be used, for example, as a holding device (for example for handling or coating) in production. The opening 77 can generally be arranged alternatively or additionally on the carcass rail 4, wherein the dual function with regard to the connection and the manufacturing process can also be used here. The hook 75 projects through the opening 77 in the carrier 22 (or the carcass rail 4). The electrical drive device 6 can generally be arranged indirectly via the carrier 22 on the carcass rail 4. The carrier 22 can be designed in several parts. The hook 75 or the locking boss 81 can generally be arranged as a kinematic reversal on the body rail 4.The opening 77 or a multi-part design of the support 22 is generally not required. Preferably, an opening 77 is provided in the body rail 4, into which the hook 75 engages. This opening 77 defines the position of the body rail 4 in a system for manufacturing the body rail 4. A further movement technology can be connected to the hook 74.

[0118] An exemplary method for retrofitting the electric drive device 6 to the guide device 3 in the installed state of the guide device 3 can be explained as follows: The electric drive device 6 for at least partially automated movement of the movable furniture part 2 is provided and the guide device 3 is mounted on the fixed furniture part 1 (see Fig. 1a) for guiding the movable furniture part 2 relative to the fixed furniture part 1, wherein if necessary an ejection device 11, a closing device 8, a driver 36 for the ejection device 11 or a driver 36 for the closing device 8 is removed from the guide device 3.Subsequently, the electric drive device 6 is arranged essentially completely (optionally with the furniture part front 23 projecting downwards) below the movable furniture part 2 to be moved at the second interface 35 of the carcass rail 4 and the toothed rack 9 is arranged at the first interface 34 of the drawer rail 5 for transmitting power from the electric drive device 6 to the drawer rail 5.

[0119] The first interface 34 of the drawer rail 5 can generally be provided by a closing device 8. At the second interface 35, a locking device 69 (schematically indicated in dotted lines) for blocking movement of the movable furniture part 2 relative to the fixed furniture part 1 and a driver 36 for an ejection device 11 can be arranged. The driver 36 for the closing device 8 provided in this embodiment is indicated in dotted lines at the second interface.

[0120] The inclined surface 72 reduces the risk of a collision with the stationary furniture part 1 or the carcass rail 4 during the assembly of the electric drive device 6 to the carcass rail 4, wherein the electric drive device 6 can be connected as an add-on to existing guide devices 3. The toothed rack 9 (or equivalents) can also be subsequently coupled to the drawer rail 9 to transmit movement from the electric drive device 6 to the movable furniture part 2. The interfaces 34, 35 in conjunction with the components to be arranged thereon therefore comprise a multifunction - on the one hand to ensure user-friendly retrofitting and on the other hand to connect a variety of flexibly interchangeable and varying movement technologies.This avoids the need for multiple interfaces for a variety of motion technologies, allowing individual motion technologies to be integrated as add-ons for easy installation. Additional installation space for the electric drive device 6 is not required, and this also facilitates the energy supply for the movable furniture part 2 and sufficient motion transmission to the movable furniture part 2.

[0121] Associated with this is a second aspect (linked via a synergy effect of the technical effects), which concerns a convenient and (particularly in terms of available storage space) resource-saving attachment of the electric drive device 6, wherein - in particular via the connection to the carcass rail 4 and / or through an expedient gear design and / or selection of the electric motor 7 - the electric drive device 6 can be located in a compact or narrow design below the movable furniture part 2. This allows optimal use of the depth of the fixed furniture part 1 and a movable power supply is not required.

[0122] Fig. 7b differs from Fig. 7a only in that the electric drive device 6 is shown in a perspective view.

[0123] The electric motor 7 is arranged within a housing 47 having a thickness 67 in the vertical direction 15 in the use position 14 of the arrangement of less than 100 mm. It is possible to achieve thicknesses 67 of less than 80 mm. The thickness 67 is preferably less than 60 mm (and less than 40 mm is also conceivable), so that in conventional furniture, a furniture part front 23 protrudes below the underside of the electric drive device 6.

[0124] Fig. 8a shows that the electric motor 7 of the electric drive device 6 is in the form of a brushless external rotor motor 66, although brushed external rotor motors 66, disc rotor motors, or rod motors can generally also be provided. External rotor motors and disc rotor motors have a particularly flat design and are therefore preferred.

[0125] The electric 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, a thickness 67 can be further reduced and the other dimensions can also be made compact.

[0126] Fig. 8b differs from Fig. 8 only in that the components of the electric drive device 6 that are operatively connected to the electric motor 7 are viewed from a different angle.

[0127] The electric drive device 6 comprises a data interface 63 for the wired transmission of at least one digital data set stored in a memory unit, wherein the data interface 63 can generally be designed as an alternative or in addition to the radio signal-transmitting transmission of the digital data set.

[0128] The electric drive device 6 comprises a trigger sensor 59 for activating the electric motor 7 for a closed position of the movable furniture part 2, wherein the electric drive device 6 has a housing 47 which is disassembled in the illustration and the trigger sensor 59 is arranged on the housing 47 for contacting the movable furniture part 2 in the use position 14 of the electric drive device 6.

[0129] The trigger sensor 59 comprises a plunger 60 and a microswitch 61, which can be triggered tactilely and electronically via the microswitch 61. A trigger sensor 59 that can be actuated exclusively electronically can be provided alternatively or additionally.

[0130] Fig. 9 shows a distance measuring device 33 for the arrangement, wherein the distance measuring device 33 is designed to determine a position of the movable furniture part 2 relative to the fixed furniture part 1 and the position in the form of an absolute distance traveled by the movable furniture part 2 relative to the fixed furniture part 1 can be clearly determined by the distance measuring device 33.

[0131] The electric drive device 6 comprises an electric motor 7, which can be supplied with 230 V, for the at least partially automated movement of the movable furniture part 2 relative to the stationary furniture part 1. The position measuring device 33 is arranged on the electric drive device 6 or represents an integral component of the drive device 6 in interaction with the electric motor 7 and is integrated into the housing 47 of the electric drive device 6. However, an arrangement within the housing 47 is not absolutely necessary.

[0132] The movable furniture part 2 is translationally movable along the guide device 3 relative to the fixed furniture part 1 over the path 13 between the closed position and the open position 30 and can be driven over the entire path 13 by the electric drive device 6. The path measuring device 33 is provided for determining a position of the movable furniture part 2 relative to the fixed furniture part 1, wherein a relative position can be clearly determined via the path measuring device 33.

[0133] The position measuring device 33 comprises a potentiometer 49 in the form of a rotary potentiometer for determining the position. Hall sensors (a magnet in conjunction with Hall electronics) have proven particularly advantageous in the underlying electronics. Alternatively or additionally, a distance sensor 50—for example, a distance laser—can be provided. The distance sensor 50 can generally also be located spatially spaced from the electric drive device 6. The position measuring device 33 is arranged on the electric drive device 6.The absolute path 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 this embodiment given as a stop 51 for the detection of an end position of the movable furniture part 2 - or a reference position of the electric drive device 6 - in this embodiment given as a starting position of the gear wheels 17 in connection with the electric motor 7.

[0134] A speed measuring device 52 is provided in the form of a potentiometer 49 arranged on the electric motor 7 or integrated in a control and / or regulating device 44 or a microcontroller 35. The speed measuring device 52 is used to determine a speed of the movable furniture part 2 relative to the stationary furniture part 1, wherein the movable furniture part 2 can be driven by the electric drive device 6 with a speed profile adapted to the determined speed of the movable furniture part 2 and / or the determined absolute travel.

[0135] The control and / or regulating device 44 or the microcontroller 37 can be used to activate the electric motor 7 at a predefined speed determined by the speed measuring device 52 or at a predefined absolute distance determined by the at least one distance measuring device 33.

[0136] The position in the form of the absolute distance traveled is stored as a dynamic data set, and the speed as a dynamic data set for simulating the model is stored at least temporarily in the memory unit via the computing unit of the microcontroller 37 or the control and / or regulation unit 44. The position measuring device 33 comprises a first position sensor 53 in the form of a sensor wheel designed as a gear 17, and a further position sensor 54 in the form of a further sensor wheel designed as a gear 17, wherein the absolute distance can be unambiguously determined via a relative rotational position of the position sensors 53, 54.

[0137] The first position sensor 53 and the further position sensor 54 are present in the form of gear stages 55 of the electric drive device 6, whereby these gear stages 55 are not required for a transmission of the drive from the electric motor 7 to the drawer rail 5; for this purpose, further gear stages 55 are used. A transmission ratio usable for the position measuring device 33 in the range between 1.01:1 and 1.2:1 can be transmitted via the first sensor wheel. A transmission ratio in the range between 1.2:1 and 2.3:1 can be transmitted between the first sensor wheel and the further sensor wheel, and a transmission ratio in the range between 1.5:1 and 2:1 can be transmitted via the first sensor wheel and the further sensor wheel.

[0138] The sensor wheels serving as position sensors 53, 54 are designed as gears 17, which, however, are not required for the engagement of the electric drive device 6 with the rack 9. The diameter 56 of the first sensor wheel differs from a diameter 56 of the second sensor wheel, whereby an absolute distance of up to 1200 mm can be determined unambiguously by the distance measuring device 33.

[0139] The absolute travel of the movable furniture part 2 is determined from a reference position using a 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 stationary furniture part 1 can be clearly calculated. The travel measuring device 33 comprises a magnetic bearing 57 via the housing 47 of the electric drive device 6 and a plastic part 58. The plastic part 58 acts as a dual circuit board for a microcontroller 37.

[0140] The position measuring device 33 comprises a tactile trigger sensor 59 in the form of a plunger 60 and a microswitch 61. In general, other trigger sensors 59 can also be provided which do not require mechanical triggering, so that a front gap between the movable furniture part 2 and the fixed furniture part 1 in the closed position for an over-pressing movement for electronic triggering can be omitted, thereby making it possible to create a piece of furniture with a particularly aesthetically pleasing appearance. A purely electronic triggering can occur, for example, by contacting the movable furniture part 2, wherein, for example, a user pressing or wiping the movable furniture part on a furniture part front 23 is detected.

[0141] The distance measuring device 33 is arranged together with the electric drive device 6 in a stationary manner on the carcass rail 4, wherein a movement transmission of the electric drive energy takes place on the rack 9 arranged on the drawer rail 5 in order to be able to transmit force over the entire path 13 or starting from any point along the path 13 over a partial area of ​​the path 13.

[0142] In the use position 14 of the arrangement, the position measuring device 33 is arranged entirely beneath the movable furniture part 2, indirectly via the electric drive device 6 on the cabinet rail 4. If necessary, a front 23 of the movable furniture part 2 can protrude beneath the electric drive device 6 or the position measuring device 33, for example, to contact the trigger sensor 59.

[0143] However, at least one base of the movable furniture part 2 is arranged above the electric drive device 6.

[0144] Both gears 17 for position or speed determination contain a microchip. Another gear 17 transfers the energy of the electric motor 7 to the rack 9.

[0145] The electric drive device 6 is arranged on the guide device 3 at least away from a closed position of the movable furniture part 2 without contact with the movable furniture part 2.

[0146] With reference to Fig. 10, an exemplary method for moving the movable furniture part 2 relative to the furniture part 1 at least in some areas along the path 13 of the movable furniture part 2 between a closed position and a partial or complete open position 30 of the movable furniture part 2 by means of the electric drive device 6 and a path measuring device 33 is explained: Via the path measuring device 33, a position of the movable furniture part 2 relative to the fixed furniture part 1 is clearly determined as the absolute path traveled by the movable furniture part 2 relative to the fixed furniture part 1 and the movable furniture part 2 is moved translationally by the electric drive device 6 between the closed position and the open position 30 along the guide device 3 over a partial area of ​​the path 13 depending on the absolute path determined by the path measuring device 33.A drive of the drawer rail 5 over the entire path 13 is generally possible due to the continuous coupling between the rack 9 and the electric drive device 6, but is not absolutely necessary.

[0147] In the method, the absolute path can be clearly determined starting from a predefined reference position, via a relative position of the position sensors 53, 54 and starting from a reference position via a sum or difference of angles of rotation of the position sensors 53, 54 as a distance between the movable furniture part 2 (generally the drawer rail 5) and the fixed furniture part 1 (generally the carcass rail 4).

[0148] Via a control and / or regulating device 44 or a microcontroller 37, the movable furniture part 2 can be driven with a speed profile adapted to the determined speed or the determined absolute distance, wherein the electric drive device 6 is activated at a predefined speed or at a predefined absolute distance. For example, an algorithm or a computer program product can be stored which comprises instructions which, when executed by a computing unit, cause the computing unit to execute the method from a memory unit which has a data connection with the computing unit.

[0149] The position measuring device 33, and in particular the clearly definable relative position between the fixed furniture part 1 or carcass rail 4 and the movable furniture part 2 or drawer rail 5, ensures that even after a power failure or other malfunction, the position of the movable furniture part 2 along the path 13 of the guide device 3 can be clearly determined. The absolute distance traveled can be clearly calculated without a reference run, thereby ensuring proper operation and, in particular, a drive tuned to the position in a particularly fault-resistant manner.

[0150] Furthermore, the specific position can be used to ensure proper detection of whether the movable furniture part 2 is to be subjected to force by the electric drive device 6 in the direction of the closed position or the open position 30. For example, based on the position and, if applicable, the speed, it can be determined whether the user of the movable furniture part 2 wants to move the movable furniture part 2 in a free-running area or desires a drive in the closing or opening direction. In addition, a speed profile to be transmitted to the movable furniture part 2 can be adapted so that an individual speed can be individually transmitted for each position along the guide device.The position can provide additional information as to whether the movable furniture part 2 is to be freely movable in the free-running area (possibly bidirectionally) or driven via the electric drive device (in the closing direction or opening direction) as well as to what extent the force is to be applied or with which speed profile the movable furniture part 2 is to be moved.

[0151] Fig. 11 and Fig. 12 show components of the electric drive device 6, wherein in Fig. 11 in the enlarged detail section a protective body 78 integrated in the housing 47 can be seen, which protects the gear - in particular a gear stage 55 - from abrasion by a belt (drive belt 79).

[0152] In Fig. 12, the belt drive is shown enlarged in connection with the electric motor 7, wherein two belt tensioners 80 are provided, which impart a tension favorable for driving the electric drive device 6. In general, only one belt tensioner 80 or several belt tensioners 80 can be provided, wherein two belt tensioners 80 arranged on opposite sides of the drive belt 79 have proven to be particularly advantageous. Fig. 13a shows the gear stages 55 of the electric motor 7, wherein the electric motor 7 is coupled to a freewheel clutch 29.

[0153] The electric motor 7 can generally comprise an overload clutch 68, which is only indicated schematically by a dotted line, since this is not necessarily required as a separate component.

[0154] Fig . 13b differs from Fig . 13a only in that it shows a view from a different viewing direction .

[0155] Fig. 14a and Fig. 14b show a one-way clutch 29 as a component comprising two gears 17, which can act as gear stages 55. The one-way clutch 29 is generally not self-locking.

[0156] Technical details of such a freewheel clutch 29 - in particular a wrap spring freewheel clutch - can be found in EP 2 086 372 B2.

[0157] Since the freewheel clutch 29 is integrated in the electric drive device 6 , the freewheel clutch 29 can remain stationary on the body rail 4 .

[0158] Specifically, the electric drive device 6 comprises the freewheel clutch 29, with which the movable furniture part 2 can be decoupled from a drive via the electric motor 7 in the closing direction and in the opening direction - for example depending on a speed of the movable furniture part 2 or a position of the movable furniture part 2 - along the path 13. By means of the freewheel clutch 29, the movable furniture part 2 can be moved between an open position 30 and a closed position - for example depending on a force exerted on the movable furniture part 2 - in a freewheel area decoupled from a drive by the electric drive device 6 or can be driven over the path 13 (generally partial areas of the path 13) by the electric drive device 6.

[0159] An overload clutch 68 can generally also be provided, which - for example depending on a speed of the movable furniture part 2 or a position of the movable furniture part 2 - enables a decoupling between the electric motor 7 and the rack 9; by means of a double detachable connection of the rack 9 (detachable connection between the support device 10 and the rack 9 and the closing device 8) during the engagement of the gear 17 of the electric drive device 6 in the function as an overload clutch 68, an integrated overload clutch 68 can be dispensed with. In general, it can be sufficient for only the rack 9 to be detachably arranged on the support device 10 or for only the support device 10 to be detachably arranged on the closing device 8.

[0160] Fig. 15 shows an electric drive device 6 arranged on one side of the guide device 3, wherein a further trigger sensor 65 (schematically indicated by dotted lines) for activating the electric motor 7 for a closed position (activation in or via the closed position or optionally an overpressure position) of a movable furniture part 2 arranged on the fixed furniture part 1 is arranged stationary on the second furniture panel 64 via the carcass rail 4 arranged on the second furniture panel 64.

[0161] The additional trigger sensor 65 preferably comprises a damping device 12 or a buffer. The additional trigger sensor 65 can be connected to the electric drive device 6 via a radio connection or a cable connection. The additional trigger sensor 65 eliminates the need for machining the furniture part front 23. The additional trigger sensor 65 is preferably used together with the trigger sensor 59.

[0162] The arrangement comprises a stabilizing device 70 for lateral stabilization of the movable furniture part 2 along the guide device 3. In general, sufficient lateral stabilization can be generated via the movable furniture part 2 itself. It is conceivable to connect the stabilizing device 70 to the second interface 35 (see Fig. 7a).

[0163] Two further racks 19 are arranged on the guide device 3 and are arranged on the two carcass rails 4, with a synchronization rod 20 being arranged between the two further racks 19 for lateral stabilization on the two further racks 19. The toothing 18 of the further racks 19 is oriented upwards in the vertical direction 15 and is orthogonal to an orientation of the toothing of the rack 9, although this is not absolutely necessary.

[0164] The synchronization rod 20 with the two further racks 19 can be provided as a separate configuration as an add-on, wherein at least one of the three component parts can be connected to the second interface 35, the rack 9, the body rail 4 or the electric drive device 6.

[0165] There is a direct power connection between the two body rails 4 (shown schematically by a dashed line). A power line 32 for the electric motor 7 can be routed via the body rail 4 or the rack 9 - for example, to supply power to an ejection device 11. On the left in the illustration it is schematically indicated that the rack 9 can comprise a coupling device 25 with which the rack 9 can be extended by means of a rack extension 26, the rack 9 then being composed of at least two rack segments 28 in the longitudinal direction 27. This makes it possible to provide a length-adjustable rack 9 in order to be able to adjust the dimensions of the rack 9 individually to the dimensions of the guide device 3 or an extension path along the path 13. In general it is also conceivable to design the rack 9 so as to be telescopic.

[0166] Fig. 16 shows a diagram with sensor angles plotted on the ordinate (in degrees) and absolute distances plotted on the abscissa along the path 13 (in mm). Using the two position sensors 53, 54, the position of the drawer rail 5 or the movable furniture part 2 can be clearly identified along the path 13 by the relative rotational position.

[0167] In the diagram, an intersection point of the sensor angles corresponding to an extension length of approximately 245 mm is marked with a square, whereby this intersection point corresponds to three complete rotations of the first position sensor 53 and five complete rotations of the second position sensor 54. The difference in the rotation angles corresponds to 36°, as a result of which the position is clearly defined. Another intersection point of the sensor angles corresponding to an absolute travel of approximately 165 mm is marked with a circle, whereby this intersection point corresponds to two complete revolutions of the first position sensor 53 and five complete revolutions of the second position sensor 54. The difference in the rotation angles corresponds to 144°, as a result of which the position is clearly defined. In this exemplary embodiment, a signal tolerance of the first position sensor 53 based on a maximum number of six rotations for a clear position determination is 60°.Analogously, a signal tolerance for the second position sensor 54 based on a maximum of 10 revolutions is equal to 36°. In combination, a tolerance can be reduced to + / - 30° for the first position sensor 53 and + / - 18° for the second position sensor 54, which is sufficiently exact for precise determination of the absolute position via both position sensors 53, 54. With a given transmission ratio, a redundancy of intersection points for determining the absolute position can occur over long distances 13, whereby this undesirable situation can be eliminated by an entry in a memory unit or a varying transmission ratio. It is also conceivable to use additional sensors.

Claims

Patent claims 1. Processing unit-supported method for moving a movable furniture part (2), in particular a drawer, relative to a fixed furniture part (1), in particular a furniture body, along a guide device (3), in particular a drawer pull-out guide, by means of at least one electrical drive device (6), in particular one which can be supplied with 230 V, for at least partially automating the movement of the movable furniture part (2) relative to the fixed Furniture part (1) via an electric motor (17), characterized by the following, preferably in chronological order Order of procedural steps to be carried out: - a microcontroller (37), comprising a computing unit and a memory unit that is or can be connected to the computing unit, determines a model of the movable furniture part (2) depending on at least one static data set stored in the memory unit - the movable furniture part (2) is moved manually from an opening position (30) or a position between the opening position (30) and a closing position towards the closing position and / or vice versa - the microcontroller (37) calculates a predicted movement trajectory of the movable furniture part (2) along the guide device (3) as a function of at least one dynamic data set.

2. The method according to claim 1, wherein - the at least one static data set is selected from the following parameters: mass of the movable furniture part (2), friction of the movable furniture part (2) on the guide device (3), dimensioning of the movable furniture part (2), loading in the movable furniture part (2), dimensioning of the guide device (3), path (13) along the guide device (3), tolerance limits or the like, and / or - the at least one dynamic data set is selected from the following parameters: absolute path traveled by the movable furniture part (2) relative to the stationary furniture part (1), speed of the movable furniture part (2), load in the movable furniture part (2), acceleration profile of the movable furniture part (2), acceleration path of the movable furniture part (2), kinetic energy of the movable furniture part (2) or the like, wherein it is preferably provided that the at least one static data set and / or the at least one dynamic data set is determined in at least one reference run of the movable furniture part (2), particularly preferably a plurality of reference runs with varying loads of the movable furniture part (2).

3. The method according to claim 1 or 2, wherein the microcontroller (37) depending on the predicted movement trajectory, makes a decision as to whether the at least one electric drive device (6) should apply force to the movable furniture part (2), preferably in the direction of the closed position or the open position (30), or whether the movable furniture part (2) should be manually movable in a freewheeling area, wherein it is preferably provided that the electric motor (7) comprises a freewheel clutch (29) with which a power transmission from the electric motor (7) to the movable furniture part (2) is separated in the freewheeling area.

4. Method according to one of the preceding claims, wherein the microcontroller (37) in dependence on the at least one static data set and the at least one dynamic data set, it is calculated whether the movable furniture part (2) reaches the closed position without application of force via the at least one electric drive device (6), wherein it is preferably provided that a speed of the movable furniture part (2) upon entry into the closed position is determined, particularly preferably as a function of a damping power of a damping device (12) arranged on the movable furniture part (2) and / or the fixed furniture part (1).

5. Method according to one of the preceding claims, wherein the microcontroller (37) defines a speed profile for the drive of the movable furniture part (2) mediated by the at least one electric drive device (6) as a function of the predicted movement trajectory, wherein the at least one electric drive device (6) applies force to the movable furniture part (2) as a function of the speed profile, wherein it is preferably provided that - the speed profile is created as a function of the at least one static data set and / or the at least one dynamic data set and / or - the movable furniture part (2) is subjected to energy at a speed of the movable furniture part (2) below the speed profile and / or - at a speed of the movable furniture part (2) above the speed profile, braking is effected by the at least one electric drive device (6) and / or - at a predefined speed threshold and / or a predefined position threshold, Force transmission to the movable furniture part (2) is initiated.

6. Method according to at least one of the preceding claims, wherein the microcontroller (37) is stored with at least one learning algorithm, preferably machine learning, deep learning, neural network and / or artificial intelligence, with which the predicted movement trajectories of a history are analyzed and / or compared with each other, wherein it is preferably provided that the history of predicted movement trajectories, particularly preferably depending on the respective static data sets and / or dynamic data sets, for movement trajectories to be predicted in the future and / or future Speed ​​profiles and / or future decisions on the application of force to the movable furniture part (2) are used.

7. Method according to one of the preceding claims, wherein the guide device (3) - comprises two carcass rails (4) which can be arranged or are arranged on the fixed furniture part (1), wherein the at least one electric drive device (6) remains stationary on at least one of the two carcass rails (4) during a movement of the movable furniture part (2), and / or - comprises two drawer rails (5), wherein at least one of the two drawer rails (5) comprises a toothed rack (9) for transmitting movement from a gear wheel (17) of the at least one electric drive device (6) to the drawer rail (5), wherein the at least one electric drive device (6) remains continuously arranged on the drawer rail (5) for driving during a movement of the movable furniture part (2).

8. Method according to one of the preceding claims, wherein the movable furniture part (2) is driven by the at least one electric drive device (6) starting from the open position (30) or a position between the open position (30) and the closed position over an entire path (13) up to the closed position and / or open position (30) or only over a partial region of the path (13), wherein it is preferably provided that a force application by the at least one electric drive device (6) starting from the closed position in the direction of the open position (30) is initiated by an over-pressing movement of the movable furniture part (2) and / or the movable furniture part (2) is manually movable in a non-driven partial region of the path (13) in a free-running region.

9. Method according to one of the preceding claims, wherein - at least one path measuring device (33) is provided for determining a position of the movable furniture part (2) relative to the fixed furniture part (1), wherein the position is determined in the form of an absolute path travelled by the movable furniture part (2) relative to the fixed furniture part (1) as a dynamic data set by the at least one path measuring device (33), preferably unambiguously, and / or - at least one speed measuring device (52) for determining a speed of the movable furniture part (2) relative to the fixed furniture part (1), wherein the speed is determined as a dynamic data set by the at least one speed measuring device (52).

10. Method according to one of the preceding claims, wherein the movable furniture part (2) is subjected to force by the at least one electric drive device (6) in the direction of the open position (30) over a partial region of the path (13) in the range between 50 mm and 150 mm and / or in the direction of the closed position over a partial region of the path (13) in the range between 5 mm and 20 mm.

11. Method according to one of the preceding claims, wherein a movement of the movable furniture part (2) in the direction of the closed position and / or the open position (30) is damped, braked or blocked via the at least one electric drive device (6), wherein it is preferably provided that the movable furniture part (2) is subjected to force in the direction of the closed position by a closing device (8) in the region of the closed position.

12. Microcontroller (37) for carrying out a method according to one of the preceding claims, comprising a computing unit and a memory unit which is or can be connected to the computing unit in data connection, characterized in that the computing unit is configured to determine a model of a movable furniture part (2) as a function of at least one static data set stored in the memory unit and / or to determine a predicted movement trajectory of the movable furniture part (2) as a function of a dynamic data set stored in the memory unit. Furniture part (2) along a guide device (3).

13. Electric drive device (6) for at least partially automated movement of a movable furniture part (2) relative to a fixed furniture part (1) via an electric motor (7) with at least one microcontroller (37) according to the preceding claim.

14. Electric drive device (6) according to claim 13, wherein at least one, in particular stationary, lighting means (31) is arranged on the at least one electric drive device (6) and / or on a power line (32) of the at least one electric drive device (6).

15. Electric drive device (6) according to claim 13 or 14, comprising - at least one stop (51), which can preferably be adjusted via at least one adjusting device (62) and / or initiated via an overpressure movement, for activating the electric motor (7), preferably via a microswitch (61), and / or - a data interface (63) for the wired and / or radio signal transmission of at least one digital data set stored in a storage unit.

16. Electric drive device (6) according to one of claims 13 to 15, wherein at least one trigger sensor (59) is provided for activating the electric motor (7) for a closed position of a movable furniture part (2), wherein the electric drive device (6) has a housing (47) and the at least one trigger sensor (59) is arranged on the housing (47) for contacting a movable furniture part (2) in the use position (14) of the electric drive device (6), 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.

17. Arrangement comprising an electric drive device (6) according to one of claims 13 to 16 and a fixed furniture part (1), in particular a furniture body, wherein the fixed Furniture part (1) comprises two furniture panels (64) oriented vertically and parallel to one another in the use position (14) of the arrangement, characterized in that exactly one electric drive device (6) is arranged in a stationary manner on one of the two furniture panels (64), preferably indirectly via a carcass rail (4) of a guide device (3), wherein at least one further trigger sensor (65) for activating the electric motor (7) for a closed position of a movable furniture part (2) arranged on the fixed furniture part (1) is arranged in a stationary manner on the second furniture panel (64), preferably on a carcass rail (4) arranged on the second furniture panel (64), wherein it is preferably provided that the at least one further trigger sensor (65) comprises a damping device (12) and / or a buffer and / or is or can be brought into data communication with the electric drive device (6) via a radio connection and / or a cable connection.

18. Arrangement according to claim 17, wherein the arrangement comprises a guide device (3) with at least one carcass rail (4) arranged on the fixed furniture part (1) and at least one drawer rail (5) arranged on the movable furniture part (2), wherein the at least one drawer rail (5) comprises at least one first interface (34) which is suitable for fixing an ejection device (11) and / or a closing device (8) to the at least one drawer rail (5), and the at least one carcass rail (4) comprises at least one second interface (35) which is suitable for fixing a driver (36) for the ejection device (11) and / or the closing device (8) to the at least one carcass rail (4), wherein the electric drive device (6) is arranged or can be arranged on the at least one second interface (35). and at least one toothed rack (9) for transmitting power from the electric drive device (6) to the at least one drawer rail (5) is arranged or can be arranged at the at least one first interface (34).

19. Arrangement according to claim 17 or 18, wherein the electric drive device (6) in the use position (14) of the arrangement is arranged substantially completely below the movable furniture part (2) on a body rail (4).

20. Arrangement according to one of claims 17 to 19, wherein the arrangement comprises a guide device (3) with at least one drawer rail (5), wherein at least one closing device (8) for the movable furniture part (2) and at least one toothed rack (9) operatively connected to the electric drive device (6) are provided, wherein the at least one closing device (8) is arranged, preferably directly, on the at least one drawer rail (5) and the at least one toothed rack (9) is arranged, preferably indirectly, on the at least one drawer rail (5), wherein the at least one toothed rack (9) is detachably arranged on at least one support device (10) and the at least one support device (10) is detachably arranged on the at least one closing device (8).

21. A computer program product comprising instructions which, when executed by a computing unit, cause the computing unit to execute a method according to one of claims 1 to 11 from a memory unit which is in a data connection with the computing unit or can be brought into such a connection.

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