ELECTROMOTORIC FURNITURE DRIVE

Description

[0001] The present invention relates to an electric furniture drive comprising at least one electric motor, at least one interface via which the electric furniture drive can be connected to a mechanical actuator, preferably detachably, and at least one identification device for automatically identifying a configuration of the mechanical actuator. The invention further relates to a furniture drive system for a movable furniture component, in particular for a furniture flap in the form of a folding flap, a swing-up flap, or a lift-up flap, comprising such an electric furniture drive and a mechanical actuator. The invention also relates to a piece of furniture with such a furniture drive system and a method for operating the furniture drive system.

[0002] Furniture drive systems with actuating arm devices have been used for many decades to move furniture flaps that can be rotated or pivoted about a horizontal axis or slid along a vertical plane. Examples of such furniture fittings are shown in WO 2012 / 155165 A2 and WO 2011 / 020130 A1.

[0003] Furthermore, furniture drive systems are known in which these systems have two separate components: a mechanical actuator (including an energy storage device) and an electric motor-driven furniture drive. Examples of this can be found in EP 3 443 191 B1 and AT 519 935 A1.

[0004] With such furniture drive systems, it is important that the same systems can be used equally well for movable furniture parts of varying sizes and weights. This is achieved by adjusting individual parameters (e.g., force) of the drive unit (which includes the energy storage device and, if applicable, a damping device) and / or the electric motor using the adjustment mechanisms.

[0005] With existing furniture drive systems, the effect of the drive device may not be compatible with the movable part of the furniture being driven. This can, in some cases, lead to damage to the movable part or even accidents involving the person operating it.

[0006] To prevent incorrect input of operating parameters, an electromechanical furniture flap drive is known from EP 2 315 897 B1. This drive includes an identification device for automatically identifying the furniture flap type from among the possible types: bi-fold flap, swing-up flap, and lift-up flap. This identification device is connected to a displacement measuring device that determines the distance the actuating arm can travel between its two end positions. Based on this measurement, the identification device identifies the flap type.

[0007] A disadvantage of this state of the art is that the entire furniture flap drive must be assembled for identification, and the actuating arm must already be moved. Therefore, if components or parts are not properly matched, damage or unwanted movements that could be dangerous for the user may occur during the testing or identification process.

[0008] Another furniture drive is described in document WO 2010 / 129979 A1.

[0009] The object of the present invention is therefore to avoid these problems. In particular, it aims to simplify the identification of the configuration.

[0010] This is solved by an electric motor furniture drive with the features of claim 1.

[0011] According to the invention, the at least one identification device is arranged at least partially at the at least one interface of the electric furniture drive, and the at least one identification device has at least one sensor via which a parameter of the mechanical actuator can be detected for the at least one identification device, so that the configuration of the mechanical actuator can be identified when the electric furniture drive is connected to the mechanical actuator. Thus, simply connecting the two components is sufficient to successfully carry out the identification. No movement of the furniture drive components is required.

[0012] Preferred embodiments of the present invention are set out in the dependent claims and in the entire description.

[0013] According to a preferred embodiment, a control device is provided with which the electric motor can be controlled. Preferably, this control device is integrated into a housing of the electric furniture drive. For example, this control device can comprise a circuit board and a microprocessor mounted thereon, as well as optionally further switching elements.

[0014] Furthermore, it is preferably provided that several data sets for different configurations of the mechanical actuator are stored in the control device, preferably in a memory.

[0015] Various sensors can be used for the identification device to detect a parameter of the mechanical actuator. For example, tactile detection can be achieved using switching mats, contact springs, microswitches, magnetic proximity sensors, magnetic angle sensors, or capacitive angle sensors.

[0016] It is particularly preferred that the identification device can perform a comparison of the parameter detected by the sensor with the data sets and identify the current configuration of the mechanical actuator, wherein control signals can be output to the electric motor via the control device depending on the current configuration of the mechanical actuator identified via the identification device.

[0017] These control signals can then be used to output operating parameters that match the configuration during operation. The electric motor can therefore be controlled in a way that corresponds to the mechanical actuator.

[0018] The interface should be designed to allow for a simple, secure, yet detachable connection between the electric furniture drive and the mechanical actuator. It is particularly preferred that the interface comprises a substantially flat connecting plate – preferably aligned along a vertical plane when installed – and connecting elements arranged on the connecting plate for detachably connecting the electric furniture drive to corresponding connecting pieces on the mechanical actuator.

[0019] For the specific design of the identification device, it is possible to use RFID modules or radio modules for configuration recognition.

[0020] It is particularly preferred that the identification device has at least one mechanical key element which is rotatably mounted on the at least one interface.

[0021] By means of at least one rotatable stylus element, a large number of different configurations and / or parameters can be encoded compactly and with a small number of component parts (for example, via a rotary slider, which translates or represents a large number of specific configurations and / or parameters through these associated - in particular equidistantly arranged - areas of the rotatable stylus element and / or the stylus element counterpart) - for example, in interaction with a corresponding stylus element counterpart such as a scanning surface.

[0022] However, for a simpler and less elaborate design, it is provided that the identification device has at least one mechanical key element which - when connected via the interface between the electromechanical furniture drive and the mechanical actuator - rests on at least one key element counterpart of the mechanical actuator, representing a parameter of the mechanical actuator.

[0023] In order to enable reliable and meaningful identification via this mechanical keying element, it is preferably provided that the at least one mechanical keying element is movable, preferably rotatable or displaceable, and is mounted on the at least one interface.

[0024] According to a first variant, the key element is provided that the rotatably mounted key element is rotatable about a rotation axis - preferably oriented at right angles to the vertical plane - wherein the rotatably mounted key element has a scanning surface facing away from the interface, inclined relative to the rotation axis, preferably at an angle between 30° and 60°.

[0025] Furthermore, it is preferably provided that the inclined scanning surface has a scanning line closest to the interface lying on the scanning surface and leading away from the axis of rotation, and a scanning line furthest from the interface lying on the scanning surface and leading away from the axis of rotation.

[0026] Furthermore, it is planned that the scanning line closest to the interface and the scanning line furthest from the interface are 180° apart from each other, starting from the axis of rotation.

[0027] Between these two scanning lines lies a surface that is essentially oval in a top view and can slide along the counterpart of the scanning element.

[0028] For reliable identification even in the event of imprecise assembly of the furniture drive and the actuator, it is particularly preferred that the scanning line furthest from the interface forms a scanning nose that can be inserted into the counterpart of the sensing element.

[0029] Protection is also sought for a furniture drive system for a movable furniture part, in particular for a furniture flap in the form of a furniture flap type such as a folding flap, a swing-up flap or a lift-up flap, with an electromechanical furniture drive according to the invention and a mechanical actuator.

[0030] The mechanical actuator of the furniture drive system preferably comprises the following essential components: a support for mounting the furniture drive system on a furniture body, an actuating arm device movably, preferably rotatably, mounted on the support, which can be connected to the movable part of the furniture, wherein the electric motor is connected or connectable to the actuating arm device and by means of which the actuating arm device can be moved at least sectionally, and at least one energy storage device, preferably in the form of a spring assembly, which acts on the support on one side and, preferably indirectly, on the actuating arm device on the other.

[0031] Furthermore, it is preferably provided that the electromechanical furniture drive is designed as a separate component from the mechanical actuator, which can be connected or linked together via the interface.

[0032] In order to enable a transmission of motion between the building units, it is preferably provided that the electromechanical furniture drive has a driver that can be driven by the at least one electric motor for transmitting a torque of the electric motor to the actuating arm device of the mechanical actuator.

[0033] Regarding the configuration of the mechanical actuator, there are several properties essential for its operation. Two particularly important properties are the type of furniture flap and the power factor of the energy storage device. If, for example, there are three different configurations for each, this results in a total of nine different combinations.

[0034] Accordingly, it may preferably be provided that the configuration of the mechanical actuator is selected from the group of actuators for the furniture flap type bi-fold flap, actuators for the furniture flap type swing-up flap, and actuators for the furniture flap type lift-up flap. Furthermore (or alternatively), it may be provided that the configuration of the mechanical actuator is selected from a group of mechanical actuators that are essentially identical in construction and differ, preferably only, in the power factor of the energy storage device.

[0035] Regarding the power factor, it can be stated that, for example, there are energy storage devices with high power, with medium power, and with low power.

[0036] Regarding the types of furniture flaps, the following should be mentioned: For example, there are furniture flaps known as lift-up flaps, in which the flap is attached to the underside of the cabinet lid by means of hinges.

[0037] Furthermore, there are two-part flaps, where the first part is pivotally connected to the furniture body and the second part is pivotally connected to the first. When moving the flap to the open position, the first part pivots upwards away from the furniture body, while the second part also pivots upwards towards the furniture body, so that the flap folds together in the open position (fold-up flap).

[0038] With lift-up flaps, the flap is swung backwards over the furniture body.

[0039] If the flap moves essentially parallel to the front of the furniture body throughout its entire opening and closing path, it is called a lift-up flap.

[0040] This terminology shall also be retained within the scope of the present invention, whereby the enumeration of the different furniture flap types (and also the performance factors and, if applicable, other identifiable actuator parameters) shall not be understood as exhaustive.

[0041] It is preferably provided that the energy storage device is designed to compensate for the weight of the adjusting arm device and the furniture part connectable to the adjusting arm device, and / or to move the adjusting arm device towards a fully closed position, and / or to move the adjusting arm device towards a fully open position. Thus, the movable furniture part can be opened to a certain angular position, in which the movable furniture part then remains in a balanced state thanks to the adjusting arm device and the energy storage device.

[0042] In addition to the energy storage device, the mechanical actuator may be equipped with a damping device that dampens the closing and / or opening movement of the actuator arm. This ensures smooth closing and opening, and, above all, a gentle approach to the respective end position.

[0043] In general, it is preferred that the positioning arm device is movable between a first maximum position, which corresponds to the closed position between the movable furniture part and the furniture body, and a second maximum position, which corresponds to the maximum open position of the movable furniture part relative to the furniture body.

[0044] In principle, it is possible for the damping device to dampen the entire movement of the adjusting arm. However, it is preferred that the damping via the damping device takes place in a movement segment of the movable furniture part preceding the closed position and the maximum open position.

[0045] Specifically, it can be provided that the (respective) upstream movement section corresponds to a swivel angle range of the actuating arm device (and thus indirectly of the movable furniture part) between 2° and 25°, preferably between 5° and 15°.

[0046] For motion transmission and conversion within the electric furniture drive, a gearbox can be provided between the electric motor and the drive unit. This gearbox preferably comprises at least two gear stages, a freewheel clutch, and / or an overload clutch.

[0047] Motion transmission is also used in the field of mechanical actuators and Conversion is advantageous, preferably with a transmission mechanism being provided by which the force of the energy storage device can be transferred to the actuating arm device.

[0048] In order to enable a closing and opening movement of the actuating arm device, it is preferably provided that the transmission mechanism has a control cam and a pressure roller loaded by the energy storage device, wherein the pressure roller is movable along the control cam when the at least one actuating arm moves.

[0049] Furthermore, it is preferably provided that the actuating arm device has a movable actuating element for transmitting a force from the energy storage device to the actuating arm.

[0050] In order to connect or link the mechanical actuator with the electromechanical furniture drive, it is preferably provided that the actuator has a transmission opening into which the driver, which can be driven by the electric motor, engages or can engage.

[0051] Protection is also sought for a piece of furniture comprising a furniture body, at least one furniture part movable, in particular about a horizontal axis, especially in the form of a folding flap, lift-up flap or swing-up flap, and a furniture drive system according to the invention.

[0052] The problem stated above is also solved by a method according to claim 14. According to this method, in a furniture drive system, the electromechanical furniture drive is connected to the mechanical actuator via the at least one interface, and a configuration of the mechanical actuator is automatically identified via the identification device when the electromechanical furniture drive is connected to the mechanical actuator via the at least one interface.

[0053] The following steps are preferably intended for the aforementioned identification: Capturing a parameter of the mechanical actuator via a sensor of the identification device, comparing the parameter captured by the sensor with stored data sets for different configurations of the mechanical actuator, identifying the current configuration of the mechanical actuator based on the stored data sets, and outputting a control signal to the electric motor depending on the current configuration of the mechanical actuator identified via the identification device.

[0054] In slightly different terms, the present invention can also be described as follows: It concerns type recognition in a furniture drive system comprising a mechanical actuator and an electric furniture drive. The furniture flap type is recognized during the assembly (i.e., when connecting) of the electric furniture drive to the mechanical actuator. The system recognizes both the type of furniture flap – i.e., bi-fold, swing-up, or lift-up – and the power factor of the energy storage device. Each furniture flap type-power factor combination corresponds to a configuration.

[0055] The configuration detection has an impact on many operating parameters of the furniture drive system: Opening angle, movement profile, front angle calculation, reference run, detection of correctly mounted components, energy storage fault detection, statistical evaluation (e.g., in case of complaints), assistance for the technician

[0056] According to a preferred embodiment, the sensing element is provided to have at least two separate sensing pins projecting from the interface – preferably at right angles to the vertical plane. With two sensing pins, four different configurations can be detected in binary. With three sensing pins, eight different configurations can be detected accordingly.

[0057] It is preferably provided that the slidably mounted stylus element, preferably a stylus, can be brought into contact with a conductor track, wherein the conductor track comprises at least one, preferably two and / or star-shaped, conductor track contour for determining a parameter of the mechanical actuator.

[0058] In this context, the star shape is to be interpreted such that rib-like conductor track contour segments project transversely from the conductor track contour. It is particularly preferred that the ribs of the conductor track contours are arranged side by side in certain areas.

[0059] It is preferably provided that the slidably mounted sensing element, preferably a sensing pin, comprises a first spring, preferably arranged at least partially within the sensing pin, for determining a parameter of the mechanical actuator and / or a second spring, preferably arranged on the outside of the sensing pin.

[0060] The first spring can support a restoring effect of the key element via the second spring and, in the sense of a dual function, establish an electrical contact with the conductor track.

[0061] Preferably, the first spring is galvanically isolated from the scanning pin and / or can be brought into contact with the conductor track, preferably with at least two conductor track contours.

[0062] If there is galvanic isolation between the first spring and the sensing pin, the sensing pin can be made of plastic, for example, although metallic materials are also possible. The first spring can generate electrical contact between two spatially separated areas of the two conductor track contours, thereby enabling the identification of parameters of the mechanical actuator.

[0063] The first spring allows for multiple functions: increasing the restoring force, providing electrical connection to the conductor track, and enabling the possible design of the scanning pin in the form of plastic.

[0064] Preferably, the mechanical actuator can be determined via a combination of at least one parameter determined via the identification device and an opening angle of the mechanical actuator, preferably determined by a reference run of the furniture drive system.

[0065] This extends the functionality of the identification device by providing additional information about the opening angle of the mechanical actuator.

[0066] It is preferably provided that the slidably mounted stylus element has at least one scanning pin projecting from the interface - preferably perpendicular to the vertical plane - and preferably that the slidably mounted stylus element can be arranged on a conductor track that may be present and / or is arranged on the mechanical actuator for contacting a defined area of ​​the conductor track that may be present.

[0067] By contacting the stylus or probe at a defined position along the conductor track, a parameter of the mechanical actuator can be determined, whereby the conductor track - for example, in the case of a probe arranged on the mechanical actuator - can be arranged in a region of the conductor track specific to the mechanical actuator.

[0068] Further details and advantages of the present invention are explained in more detail below with reference to the description of the figures and the exemplary embodiments illustrated in the drawings. These show: Fig. 1 schematically shows a piece of furniture with a furniture drive system for a furniture flap, Fig. 2a a view of a mechanical actuating unit with an actuating arm device and a power storage unit, Fig. 2 a detail from Fig. 2a , Fig. 3a+3b perspective views of the mechanical actuating unit, Fig. 4a+4b longitudinal sections through the mechanical actuating unit in a medium open position, Fig. 5a+5b details of the Fig. 4a und 4b Fig. 6a+6b Longitudinal sections through the mechanical actuating unit in a furniture section position preceding the maximum opening position, showing the damping start position in each case; Fig. 7a+7b Longitudinal sections through the mechanical actuating unit in a furniture section position preceding the closing position, showing the damping start position in each case; Fig. 8 Perspective view of the furniture with the lift-up flap open; Fig. 9 Perspective view of the furniture carcass with furniture drive systems arranged on both sides; Fig. 10 Perspective view of the furniture drive system with protective cover; Fig. 11 Perspective view of the furniture drive system without protective cover, looking at the cover; Fig. 12 Perspective view of the mechanical actuating unit and the electrical drive unit; Fig. 13 Another perspective of Fig. 12 Fig. 14 shows the electric drive unit from a perspective view, Fig. 15 shows another perspective view. Fig. 14 Fig. 16 perspective view details of the electric drive unit with all relevant components, Fig. 17 perspective view of a detail from Fig. 16 Fig. 18 a perspective section through the area of ​​the electric motor, Fig. 19 perspective view of the area of ​​the mechanical keypad, Fig. 20 perspective view of the interface with protruding keypad, Fig. 21 perspective view of the housing part with keypad counterpart, Fig. 22 detailed view of the keypad counterpart, Figs. 23-25 ​​perspective view of the connection of the furniture drive with the actuator in different positions, Fig. 26 a view of the housing part, Fig. 27 detailed view of the keypad counterpart. Fig. 26 Fig. 28 shows a view of the housing part, Fig. 29 shows a detailed view of the offset stylus element counterpart. Fig. 28 , Fig. 30 possible different angular positions, each corresponding to a specific configuration, Figs. 31-42 perspective a furniture drive system and individual areas and components of this system each with an alternative embodiment of the mechanical sensing element in the form of three sensing pins and Figs. 43a-44 furniture drive system and individual areas and components of this system each with a further preferred embodiment of the mechanical sensing element as a sensing pin.

[0069] Fig. 1 Figure 1 shows a piece of furniture 100 with a furniture carcass 3, wherein a furniture drive system 1 (furniture fitting) for moving a movable furniture part 2 is attached to a side wall 3a of the furniture carcass 3.

[0070] In the illustrated embodiment, the movable furniture part 2 has two furniture flaps 2a, 2b, wherein a first furniture flap 2a is pivotably connected to the furniture body 3 via at least two hinges 9a about a horizontally extending axis of rotation, and the second furniture flap 2b is pivotably connected to the first furniture flap 2a via at least two hinges 9b about a horizontally extending axis of rotation.

[0071] The furniture drive system 1 has a support 4 to be attached to the furniture body 3, preferably to the side wall 3a of the furniture body 3, and at least one actuating arm 52 which is pivotable relative to the support 4 and which is connected to the movable furniture part 2, preferably to the second furniture flap 2b.

[0072] It can be seen that the furniture is 100 in Fig. 1 is arranged at a distance of 10 from the ceiling. Fig. 1 The adjusting arm 52 assumes a relatively large swivel angle, which corresponds to the maximum opening position OS of the movable furniture part 2.

[0073] Fig. 2a Figure 1 shows the mechanical actuator 1.1 of the furniture drive system 1 in a side view, wherein the mechanical actuator 1.1 has a support 4 to be attached to the furniture body 3 and at least one actuating arm 52 which is pivotably mounted on the support 4 about a pivot axis X.

[0074] In the illustrated embodiment, an adjustment arm extension 11 is detachably arranged on the adjustment arm 52, the adjustment arm extension 11 comprising two adjustment arm parts 11a, 11b that are slidable relative to each other. Preferably, the adjustment arm parts 11a, 11b are telescopically slidable relative to each other, with the first adjustment arm part 11a being detachably connected to the adjustment arm 52. The second adjustment arm part 11b has a fastening device 12 which is detachably connected to a fitting part to be attached to the movable furniture part 2, preferably lockable and unlockable without tools.

[0075] A force storage device 6 is provided for applying force to the actuating arm 52 of the actuating arm device 5. This device may, for example, comprise at least one coil spring, preferably at least one compression spring. Alternatively, the force storage device 6 may also comprise other force storage devices, such as a fluid storage device in the form of a gas spring.

[0076] The actuator arm device 5 has a transmission mechanism 51 for transmitting a force from the energy storage device 6 to the at least one actuator arm 52. Preferably, the transmission mechanism 51 has a control cam 53 and a pressure roller 54 loaded by the energy storage device 6, wherein the pressure roller 54 is movable along the control cam 53 when the at least one actuator arm 52 moves.

[0077] According to a preferred embodiment, the control cam 53 can be arranged or formed on the actuating arm 52. Of course, it is also possible to arrange the control cam 53 at another location in the transmission mechanism 51 of the actuating arm device 5.

[0078] In the Fig. 2b In the illustrated case, the actuating arm 52 is integrally formed with an actuating element 55 for transmitting a force from the energy storage device 6 to the actuating arm 52. The control cam 53 is formed on this actuating element 55. Furthermore, the transmission opening 59 is formed in this actuating element 58, into which the driver 31, driven by the electric motor 30, engages or can engage.

[0079] A force storage unit 14 allows the force of the force storage unit 6 on the at least one actuating arm 52 to be adjusted. Preferably, it is provided that The power storage adjusting unit 14 has at least one rotatably mounted adjusting wheel 14a, wherein a force of the power storage unit 6 acting on the at least one adjusting arm 52 can be adjusted by rotating the adjusting wheel 14a, and / or the power storage adjusting unit 14 has at least one threaded spindle 16 along which an application point 15 of the power storage unit 6 can be moved when the power storage adjusting unit 14 is actuated, and / or the carrier 4 has an end face with at least one opening 17a through which the at least one adjusting arm 52 projects in an open position, wherein an adjusting wheel 14a of the power storage adjusting unit 14 can be actuated from a direction transverse to the end face through the opening 17a.

[0080] Fig. 2b shows the in Fig. 2a The circled area is shown in an enlarged view. The transmission mechanism 51 has an intermediate lever 19, which is pivotably mounted on the support 4 about a pivot axis 19a. The threaded spindle 16 is mounted on the intermediate lever 19. By rotating the adjusting wheel 14a of the energy storage adjusting unit 14 using a tool, the threaded spindle 16 can be rotated, causing the point of application 15 of the energy storage device 6 to move along the threaded spindle 16. In this way, the relative distance between the point of application 15 and the pivot axis 19a of the intermediate lever 19, and thus the torque of the energy storage device 6 acting on the adjusting arm 52, can be increased or decreased.

[0081] The mechanical actuator 1.1 further comprises at least one damping device 7 for damping a movement of the at least one actuating arm 52 of the actuating arm device 5. This damping device 7 together with the energy storage device 6 forms the drive device A, with which a force can be exerted on the actuating arm device 5.

[0082] Preferably, the damping device 7 is provided that it is designed as a fluid damper and / or has at least one piston-cylinder unit and / or can be acted upon by the at least one actuating arm 52 during a closing movement and / or can be acted upon from the same side both during an opening movement O and during a closing movement S of the at least one actuating arm 52.

[0083] Fig. 3a Figure 1 shows the mechanical actuator 1.1 in a perspective view, wherein a force from the energy storage device 6 can be transmitted to the at least one actuating arm 52 via the transmission mechanism 51 of the actuating arm device 5. The energy storage adjusting unit 14 can, for example, comprise a rotatable adjusting wheel 14a, wherein the point of application 15 of the energy storage device 6 along the threaded spindle 16 can be adjusted by rotating the adjusting wheel 14a, and thus the torque acting on the actuating arm 52 can be adjusted.

[0084] The mechanical actuator 1.1 can also have a mounting lock 20 for the empty actuator arm 52, on which no movable furniture part 2 is yet mounted, to limit the opening speed of the empty actuator arm 52, wherein the mounting lock 20 prevents unintentional opening or jerking of the empty actuator arm 52 by a force from the energy storage device 6. Preferably, the mounting lock 20 comprises at least one centrifugal clutch 20a.

[0085] Fig. 3b Figure 1 shows another (slightly offset) perspective view of the mechanical actuator 1.1. The entire damping device 7 is clearly visible in this illustration. This damping device 7 includes the damper housing 71 and the damper piston 72.

[0086] The damper adjustment unit 8 allows the damping device 7 to be adjusted relative to the carrier 4. The damper adjustment unit 8 comprises the adjustment means 8a (in the form of a switch) and the adjustment axis pin 8x. The adjustment axis pin 8x is fixedly connected to the carrier 4.

[0087] In Fig. 3b The adjusting device 8a is pivoted to the right, which places the damping device 7 in a maximum right position relative to the carrier 4.

[0088] In Fig. 3b It is evident that a first damping transmission element 5a is formed on the adjusting arm 52. This first damping transmission element 5a is designed in the form of a projection which faces the damping device 7. In the Fig. 3b In the position shown, the stop 55 is (still) spaced apart from the stop counterpart 74 formed on the damper housing 71.

[0089] A stop element 56 (in the form of a roller) is arranged on the adjusting arm device 5. This stop element 56 is (still) spaced apart from the second damping transmission element 5b, which is pivotably mounted on the support 4 via the axle pin 57.

[0090] The Fig. 4a bis 7b Each figure shows a vertical longitudinal section through the mechanical actuator 1.1 in different positions.

[0091] In the Fig. 4a und 4b The adjusting arm 5 is in the same open position. This corresponds to an approximately half-open, movable furniture part 2. The opening angle of the adjusting arm 52 is somewhere between 55° and 80°.

[0092] The Fig. 4a und 4b However, they differ in that the damping device 7 is in different positions. In Fig. 4b The damping device 7 is located in its maximum right position. As shown in the accompanying enlarged illustration according to Fig. 5b As can be seen, the adjusting element 8a is rotated clockwise around the adjusting axis pin 8x. This results in a relatively wide area of ​​the adjusting element 8a being located between the damper housing 71 and the adjusting axis pin 8x.

[0093] In contrast, in the Fig. 4a and in the associated Fig. 5a The adjusting element 8a of the damper adjusting unit 8 is rotated 90° to the left. This places a relatively narrow section of the adjusting element 8a between the damper housing 71 and the adjusting axle pin 8x. The damping device 7 is in its leftmost maximum position.

[0094] In all positions according to the Fig. 4a bis 5b The damping device 7 is unloaded and therefore relaxed and in the fully extended position. The second pressure transmission element 5b rests against the damping piston 72.

[0095] In comparison between Fig. 5a und 5b It can be seen that the damper housing 71, in addition to a translational displacement movement relative to the support 4, also performed a (slight) pivoting movement relative to the support 4.

[0096] In the Fig. 6a und 6b was - based on the previous Fig. 4a bis 5b - An opening movement O of the actuating arm device 5 was performed. This caused the actuating arm 52 to pivot upwards. This opening movement O was carried out until the stop 55 of the first damping transmission element 5a contacted the stop counterpart 74. In this position, the damping start position D was reached.

[0097] Since the damping devices 7 are located in the Fig. 6a und 6b Since the actuator arm 52 is in different maximum positions, it assumes a different angular position at the respective damping start position D. Specifically, in Fig. 6a an opening angle of approximately 108° is given, while in Fig. 6b An opening angle of 100° is given.

[0098] When the opening movement O continues from this respective damping start position D, the damper piston 72 is pushed into the damper housing 71 via the stop counterpart 74, thereby activating the damping device 7. As soon as the damper piston 72 is fully retracted, the maximum open position OS is reached (not shown).

[0099] Thus, the movement section of the movable furniture part 2 preceding the maximum opening position OS is damped, with the damping start position D being set differently via the damper adjustment unit 8. This allows different opening angles to be set for the start of the damping movement.

[0100] The same principle applies to the closing movement S.

[0101] In the Fig. 7a und 7b was - based on the Fig. 4a bis 5b - A closing movement S of the actuating arm device 5 was performed. This caused the actuating arm 52 to pivot downwards. This closing movement S was carried out until the rotation of the actuating arm 52 about the axis of rotation X caused the stop element 56 to contact the second damping transmission element 5b. In this position, the damping start position D is reached.

[0102] Since the damping devices 7 are located in the Fig. 7a und 7b Since the actuator arm 52 is in different maximum positions, it assumes a different angular position at the respective damping start position D. Specifically, in Fig. 7a an opening angle of approximately 22° is given, while in Fig. 7b An opening angle of just under 33° is given.

[0103] When the closing movement S continues from this respective damping start position D, the second damping transmission element 5b is rotated counterclockwise around the axle pin 57 via the stop element 56, causing the damping transmission element 5b to press against the damper piston 72 via the stop 58 and push it into the damper housing 71, thereby activating the damping device 7. Once the damper piston 72 is fully retracted, the closed position SS is reached (not shown).

[0104] In Fig. 8 The entire piece of furniture 100 is shown in a perspective view. Visible in this view is the power supply unit 21, which can supply energy to an (not visible here) electric motor furniture drive 1.2.

[0105] In Fig. 8 Furthermore, a detection device 22 is located on both sides of the furniture body 3 for detecting an over-pressing movement and / or triggering a closing movement S. If the movable furniture part 2 is in the closed position SS and a user presses on the movable furniture part 2, this is detected by the detection device 22, whereupon an opening movement O of the furniture drive system 1 is initiated via the control device 44 and the electromechanical furniture drive 1.2. As in Fig. 8 With the movable furniture part 2 open, a user can directly press on one of the detection devices 22, whereupon a closing movement S of the furniture drive system 1 is initiated via the control device 44 and the electromechanical furniture drive 1.2.

[0106] In Fig. 9 In a perspective view, only the furniture carcass 3, including the furniture drive systems 1 arranged on both sides of the furniture carcass 3, is shown. The protective cover 23 of the electromechanical furniture drive 1.2 is clearly visible.

[0107] Fig. 10 Figure 1 shows a perspective view of the furniture drive system 1, which comprises the mechanical actuator 1.1 and the electromechanical furniture drive 1.2. These two units 1.1 and 1.2 are detachably connected to each other laterally via their respective housings. The entire furniture drive system 1 can be attached to a furniture carcass 3 via the support 4. The electromechanical furniture drive 1.2 has the protective cover 23.

[0108] In Fig. 11 The furniture drive system 1 is again shown in perspective, but the protective cover 23 is omitted, thus revealing the cover 24 which forms part of the housing of the electromechanical furniture drive 1.2. A visual indicator signal H can be displayed on this cover 24 of the furniture drive system 1.

[0109] In Fig. 12 The electromechanical furniture drive 1.2 and the mechanical actuator 1.1 are shown separately. The housing of the mechanical actuator 1.1 has a (curved) access opening 25, through which access to the actuating element 58 of the actuating arm device 5 is possible.

[0110] This is related to in Fig. 13 , which shows a different view of the furniture drive system 1, the driver 31 protruding from a (curved) outlet opening 26 in the housing of the electromechanical furniture drive 1.2 is visible.

[0111] This side of the electromechanical furniture drive 1.2, facing the mechanical actuator 1.1, forms the interface 90, via which the two drives 1.1 and 1.2 can be detachably connected. A part of the identification device 91 – specifically the mechanical key element 96 – projects from this interface 90, which is aligned along a vertical plane, in the direction of the mechanical actuator 1.1.

[0112] As in Fig. 13 As can be seen, the interface 90 includes the connecting plate 93 (which forms part of the housing) and several connecting elements 94.

[0113] In Fig. 12 The connecting elements 94 and their corresponding counterparts 95 are shown. These connecting elements 95 are formed in or on the housing of the mechanical actuator 1.1. The connecting elements 94 can be detachably connected to the connecting elements 95 by snapping, sliding, clipping, or similar means.

[0114] In Fig. 14 Only the housing of the electromechanical furniture drive 1.2 including cover 24 is shown.

[0115] Fig. 15 Figure 1 shows the electromechanical furniture drive 1.2 with a view of the side facing the mechanical actuator 1.1. In the illustrated embodiment, the driver 31 is designed as a pin which is mounted so as to be displaceable within a guide contour (exit opening 26) formed in the housing. The driver 31 projects beyond the housing on the side facing the mechanical actuator 1.1.

[0116] In Fig. 15 The connecting plate 93 and the connecting elements 94 as well as the mechanical key element 96 of the identification device 91 are particularly clearly visible.

[0117] Fig. 16 Figure 1 shows the electromechanical actuator 1.2 of the furniture drive system 1 in a perspective detail view, with the part of the cover 24 pointing towards the mechanical actuator 1.2 omitted.

[0118] The electromechanical furniture drive 1.2 comprises an electric motor 30 for the electromechanical assistance of the movement of the movable furniture part 2, which can be attached to the adjusting arm 52. Furthermore, the electromechanical furniture drive 1.2 comprises a driver 31, which is (indirectly) driven by the electric motor 30, for transmitting a torque from the electric motor 30 to the mechanical actuator 1.2 or to the adjusting arm 52 and any furniture part 2 optionally connected thereto.

[0119] The mechanical actuator 1.1 and the electromechanical furniture drive 1.2 can be detachably connected to each other. This allows the electromechanical furniture drive 1.2 to be easily connected to or disconnected from the mechanical actuator 1.1.

[0120] The components of the electromechanical furniture drive 1.2 can be arranged in a housing comprising the cover 24, as shown. The housing rests against the mechanical actuator 1.2, at least partially, and in the illustrated embodiment separates the mechanical actuator 1.1 from the assembly of the electromechanical furniture drive 1.2.

[0121] Instead of a housing, for example a mounting plate can also be used, which does not enclose the assembly of the electromechanical furniture drive 1.2, but only limits and supports it on one side.

[0122] A gearbox 32 is provided between the electric motor 30 and the drive unit 31. This gearbox converts the torque of the electric motor 30 into a pivoting movement of the drive unit 31 about a rotary axis 33. The gearbox 32 comprises several gear stages (worm gear 40 and gears 34, 35, 36, 37, 38, and 39). Gear stages 34 to 40 mesh with each other via toothed connections. Furthermore, the gearbox 32 includes a freewheel clutch 41, which is integrated into gear 36, and an overload clutch 42, which is integrated into gear 39.

[0123] The electromechanical furniture drive 1.2 also has its own damping device 43 for damping the movement of the driver 31 about the axis of rotation 33.

[0124] Returning to Fig. 1 The following will be described in more detail.

[0125] The electromechanical furniture drive 1.2 has an identification device 91. This in turn has a sensor 92 and a mechanical sensing element 96, which is arranged in the area of ​​the interface 90 with the mechanical actuator 1.1. The mechanical actuator 1.1, in turn, has a corresponding sensing element 97 (schematically indicated) that corresponds to the mechanical sensing element 96.

[0126] When the electromechanical furniture drive 1.2 is connected to the mechanical actuator 1.1, the configuration K of the mechanical actuator 1.1 can be identified. Specifically, the mechanical sensing element 96 contacts the sensing element counterpart 97 upon connection. This sensing element counterpart 97 represents a parameter P of the mechanical actuator 1.1. The contact moves the mechanical sensing element 96, and the position of the sensing element 96 can be detected by the sensor 92.

[0127] The parameter P of the mechanical actuator 1.1, detected by sensor 92, is transmitted to the control device 44. A data record F is stored in the control device 44. This data record F contains – as exemplified in Fig. 1 shown - several configurations K of the mechanical actuator 1.1. Specifically, there are eight different configurations K, which are composed of the three furniture flap types HF, HS and HL as well as the three power factors L of the energy storage unit 6.

[0128] Then, via the control device 44, the identification device 91 compares the parameter P detected by the sensor 92 with the data sets F and the current configuration K of the mechanical actuator 1.1 is identified.

[0129] Depending on the current configuration K of the mechanical actuator 1.1 identified via the identification device 91, control signals I can then be output to the electric motor 30 via the control device 44.

[0130] In Fig. 17 Details of the identification device 91 are shown. Specifically, in Fig. 17 The keying element 96, rotatably mounted on the housing (preferably on the connecting plate 93 of the interface 90, which is not shown here), is visible. This keying element 96 is rotatable about a rotational axis T – preferably oriented at right angles to the vertical plane – and the rotatably mounted keying element 96 has a scanning surface B facing the mechanical actuator 1.1 and inclined relative to the rotational axis.

[0131] It is in Fig. 17 It is clearly evident that the inclined scanning surface B has a scanning line B1, located on the scanning surface B and extending radially away from the axis of rotation T, which is closest to the interface, and a scanning line B2, located on the scanning surface B and extending radially away from the axis of rotation T, which is furthest from the interface. The scanning line B2, furthest from the interface, forms a scanning nose N that can be inserted into the counterpart 97 of the scanning element.

[0132] In the version according to Fig. 17 The rotatable mechanical push button is connected via two gears to a sensor 92 (not shown here). Other motion transmission variants are also possible.

[0133] In Fig. 18 Figure 1 shows a cross-section through the electric motor furniture drive 1.2 in the area of ​​the electric motor 30 and through the mechanical sensing element 96, where the scanning surface B and the scanning nose N are also clearly visible. The mechanical sensing element 96 is spring-mounted along the axis of rotation T. The rotational movement or position of this mechanical sensing element 96 can be detected by the sensor 92.

[0134] The perspective representation according to Fig. 19 The inclined scanning surface B, including the scanning nose N, and the shape of the mechanical key element 96 are particularly clearly visible.

[0135] In Fig. 20 is - in contrast to Fig. 19 - also the housing of the electromechanical furniture drive 1.2 is shown. The mechanical push-button element 96 protrudes through an opening in the connecting plate 93 and through this housing.

[0136] Fig. 21 The figure shows in perspective the housing part 89 of the mechanical actuator 1.1 facing the interface 90. The touch element counterpart 97 is formed in this housing part 89.

[0137] In Fig. 22 This key element counterpart 97 is shown in detail, where it is designed as an embossing formed in the housing sheet.

[0138] Fig. 23 shows the key element counterpart 97 and the opposing, still spaced-apart mechanical key element 96 before they are connected. Fig. 24 There is still a slight distance between them, while in Fig. 25 The two parts 96 and 97 are connected, with the key element 96 rotating about the axis of rotation T depending on the shape of the key element counterpart 97. The connecting elements 94 and the connecting counterparts 95 are also connected to each other.

[0139] Fig. 26 The figure shows the housing part 89 in a top view together with the embossed key element counterpart 97.

[0140] In Fig. 27 is a detail from Fig. 26 The sensing element counterpart 97 has a recess into which the scanning nose N can penetrate during connection. The sensing element counterpart 97 has a projection 99 extending into the recess, which defines or represents the parameter P of the mechanical actuator 1.1. That is, this sensing element counterpart 97 is manufactured or stamped during the production of the housing part 89 of the mechanical actuator 1.1 for later identification when connecting it to the electromechanical furniture drive 1.2.

[0141] In the Fig. 28 und 29 The projection 99 is offset. This counterpart 97 of the touch element thus represents a different parameter P.

[0142] Type identification can also be based on the Fig. 30 This will be explained. Starting from a baseline position (vertically upwards), there is a dead zone of 10° on both sides of this baseline. Subsequently, similar to a clock face, there are twelve zones, each approximately 28.3° (=340°). Each of these zones corresponds to a parameter P, from which a configuration K can be identified. Thus, depending on how the projection 99 is imprinted, the configuration K can be recognized via the identification device 91.

[0143] In other words, the mechanical key element 96 aligns itself with the embossing in the housing sheet (key element counterpart 97). The rotation of the key element 96 is detected and evaluated by the electronics of the control device 44.

[0144] In the Fig. 31 bis 42 Another embodiment is shown with an alternative design of the mechanical key element 96 and the key element counterpart 97.

[0145] In Fig. 31 The diagram shows a furniture drive system comprising a mechanical actuator 1.1 and an electric furniture drive 1.2. The protective cover 23 is also shown. The push-button counterpart 97 is formed in the form of three recesses on the housing part 89 of the mechanical actuator 1.1.

[0146] Fig. 32 is identical to Fig. 31 , where the area of ​​the taste element counterpart 97 is circled.

[0147] In Fig. 33 The circled area is shown enlarged. It is thus apparent that in this case, the two right-hand recesses of the key element counterpart 97 are empty, while the left-hand recess is filled. The three recesses therefore form a kind of code that represents the parameter P of the mechanical actuator 1.1.

[0148] In Fig. 34 The furniture drive system 1 is shown from a different perspective, so that the interface 90 of the electromechanical furniture drive 1.2 is also partially visible. The mechanical push-button element 96 is already recognizable in the circled area.

[0149] Fig. 35 The circled area is shown enlarged. It can be seen that this mechanical key element 96 has three slidably mounted scanning pins 98 which protrude through the connecting plate 93.

[0150] Fig. 36 Figure 1 shows a perspective view of the housing part 89 of the mechanical actuator 1.1; the rest is hidden. Of the electromechanical furniture drive 1.2, only the mechanical push-button element 96 is shown in the circled area; the remaining components of the electromechanical furniture drive 1.2 are hidden for clarity.

[0151] Fig. 37 shows the circled area of Fig. 36 enlarged. The individual scanning pins 98 are each surrounded by a compression spring 88 and are biased towards the housing part 89 by this respective compression spring 88.

[0152] Fig. 38 The figure again shows the housing part 89 together with the mechanical scanning element 96 from a different perspective.

[0153] In the enlarged view according to Fig. 39 It can be seen that the left recess of the stylus counterpart 97 is filled, so that the stylus 98 of the mechanical stylus 96 rests against it. In contrast, the two right styluses 98 are positioned in the two open recesses of the stylus counterpart 97. These different positions of the styluses 98 can be detected by a sensor 92.

[0154] In Fig. 40 The housing part 89 is shown in perspective with the scanning pins shown partially cut open.

[0155] The circled area of Fig. 40 is in Fig. 41 The image is shown enlarged. It can be seen that the two right-hand scanning pins 98 penetrate into the recesses of the stylus element counterpart 98, while the left-hand scanning pin 98 abuts the projection 99 that fills the recess.

[0156] In the Fig. 42 A top view of the three scanning pins 98 is shown, clearly showing that two scanning pins 98 penetrate the housing part 89 in the area of ​​the recesses of the sensing element counterpart 97.

[0157] Overall, this results in the Fig. 31 bis 42 The illustrated version with three scanning pins 98 - depending on how many and which recesses of the scanning element counterpart 97 are filled - offers nine possible variants for parameter P of the mechanical actuator 1.1.

[0158] If, for example, the mechanical key element 96 has only two slidably mounted scanning pins 98 (not shown), only a maximum of four parameters P and identifiable configurations K can be determined and distinguished.

[0159] Similarly, with four slidably mounted scanning pins, there are 98 (not shown) sixteen different configurations K etc.

[0160] Fig. 43a Figure 1 shows a further constructive embodiment of the mechanical key element 96 comprising a scanning pin 98. The slidably mounted key element 96 (the number of which is generally arbitrary) can be brought into contact with a conductor track 103 (illustrated in the enlarged detail below the mechanical actuator 1.1), wherein the conductor track 103 comprises two star-shaped conductor track contours 104 for determining a parameter P of the mechanical actuator 1.1.

[0161] In Fig. 43b It is evident that the slidably mounted stylus element 96 - comprising the stylus 98 - includes a first spring 101 arranged partially within the stylus 98 for determining a parameter P of the mechanical actuator 1.1 and a second spring 102 arranged partially on the outside of the stylus 98.

[0162] The first spring 101 is galvanically separated from the scanning pin 98 in the form of plastic or metal and can be brought into contact with both conductor contours 104 of the conductor track 103.

[0163] Fig. 44a Figure 1 shows the electromechanical furniture drive 1.2 in conjunction with the mechanical actuator 1.1. The mechanical actuator 1.1 can be determined (generally possible in all embodiments) via a combination of a parameter P determined by the identification device 91 and an opening angle of the mechanical actuator 1.1, wherein the opening angle (for example, by a maximum tilt angle or a specific angle between two end positions of the mechanical actuator 1.1) can be determined by a reference run of the furniture drive system 1. For the identification of this mechanical actuator 1.1, the touch element counterpart 97 acts as a counter-bearing, so that the first spring 101 contacts the conductor track 103 – both conductor track contours 104.

[0164] In general, the slidably mounted sensing element 96 can have exactly one or a plurality of separate scanning pin(s) 98 projecting perpendicularly from the interface 90 to the vertical plane, wherein the slidably mounted sensing element 96 can be arranged on the conductor track 103 and optionally on the mechanical actuator 1.1 for contacting a defined area of ​​the conductor track 103 (preferably the mechanical sensing element 96 is arranged on the housing part 89). This allows identification of the mechanical actuator 1.1 via a defined positioning of the scanning pin 98 with a reduced number of mechanical sensing elements 96.

[0165] Fig. 44b This shows that, for the identification of this mechanical actuator 1.1, no stylus element counterpart 97 acts as a counter-bearing, so that the first spring 101 is positioned without contact to the conductor track 103 by means of a spacer. Design details of the slidably mounted mechanical stylus element 96 (see...) Fig. 41 ) - such as the projection 99 - are applicable alternatively or in addition to this embodiment of the mechanical sensing element 96.

[0166] Finally, the following two (not shown) implementation variants should be mentioned.

[0167] It may be provided that only configuration K is identifiable with respect to the power factor L via the identification device 91. For the identification of the furniture flap types HF, HS, and HL, a displacement measuring device can be provided – for example, as described in EP 2 315 891 B1 – by which the distance that can be traveled by the actuating arm between its two end positions can be determined, whereby the furniture flap type can be identified depending on the measurement result of this displacement measuring device. Thus, a hybrid variant exists between the identification according to the invention during connection and the identification of a configuration by the movement of the actuating arm.

[0168] Up to now, the mechanical stylus element 96 has always been described as a protruding component. However, it is quite possible that this mechanical stylus element 96 is designed as a recess and the stylus element counterpart 97 as a corresponding counterpart, whereby the same basic principles apply for identification in this mechanical reversal. Reference symbol list:

[0169] 1 Furniture drive system 1.1 Mechanical actuator 1.2 Electric drive unit 2 Movable furniture part 2a First furniture flap 2b Second furniture flap 3 Furniture carcass 3a Side panel 4 Support 5 Actuating arm device 5a First damping transmission element 5b Second damping transmission element 51 Transmission mechanism 52 Actuating arm 53 Control cam 54 Pressure roller 55 Stop 56 Stop element 57 Axle pin 58 Actuating part 59 Transmission opening 6 Energy storage 7 Damping device 71 Damper housing 72 Damper piston 73 Damping element 74 Stop counterpart 8 Damper adjustment unit 8a Adjusting element 8x Adjusting axle pin 8b, 8c Recesses 9a Hinges 9b Hinges 10 Ceiling 11 Actuating arm extension 11a First adjusting arm section 11b Second adjusting arm section 12 Mounting device 14 Energy storage adjusting unit 14a Adjusting wheel 15 Point of engagement 16 Threaded spindle 17a Opening 19 Intermediate lever 19a Shaft of rotation 20 Mounting lock 20a Centrifugal clutch 21 Power supply unit 22 Detection device 23 Protective cover 24 Cover 25 Access opening26 Outlet opening 30 Electric motor 31 Driver 32 Gearbox 33 Rotary shaft 34 Gear (gear stage) 35 Gear (gear stage) 36 Gear (gear stage) 37 Gear (gear stage) 38 Gear (gear stage) 39 Gear (gear stage) 40 Worm gear (gear stage) 41 Freewheel clutch 42 Overflow clutch 43 Damping device 44 Control device 88 Compression spring 89 Housing part 90 Interface 91 Identification device 92 Sensor 93 Connecting plate 94 Connecting elements 95 Connecting counterparts 96 Mechanical stylus 97 Stylus counterpart 98 Stylus 99 Projection 100 Furniture 101 First spring 102 Second spring 103 Conductor track 104 Conductor contour A Drive device D Damping start position S Closing movement O Opening movement SS Closed position OS Maximum opening position X Rotary axis H Warning signal K Configuration F Data records P Parameters of the mechanical actuator 1.1 K Current configuration T Rotary axis B Scanning surface B1 Interface nearest scanning line B2 Interface furthest scanning line N Scanning noseHF folding flap HS swing-up flap HL lift-up flap L power factor I control signal

Claims

1. An electric motor-powered furniture drive (1.2) with - at least one electric motor (30), - at least one interface (90), via which the electric motor-powered furniture drive (1.2) can be connected, preferably releasably, to a mechanical actuating drive (1.1), and - at least one identification device (91) for the automatic identification of a configuration (K) of the mechanical actuating drive (1.1), characterized in that the at least one identification device (91) is arranged on the at least one interface (90) of the electric motor-powered furniture drive (1.2) at least in regions and the at least one identification device (91) comprises at least one sensor (92), via which a parameter (P) of the mechanical actuating drive (1.1) can be detected for the at least one identification device (91), so that the configuration (K) of the mechanical actuating drive (1.1) can be identified when the electric motor-powered furniture drive (1.2) is connected to the mechanical actuating drive (1.1).

2. The electric motor-powered furniture drive according to claim 1, characterized in that a control device (44) is provided, with which the electric motor (30) can be controlled, wherein it is preferably provided, that several data sets (F) relating to different configurations (K) of the mechanical actuating drive (1.1) are stored in the control device (44), wherein it is preferably provided that - the identification device (91) has an angle sensor, via which a parameter (P) of the mechanical actuating drive (1.1) can be detected, and / or - the identification device (91) can carry out a comparison of the parameter (P) detected by the sensor (92) with the data sets (F) and identify the current configuration (Kakt) of the mechanical actuating drive (1.1), wherein, via the control device (44), control signals (I) can be output to the electric motor (30) depending on the current configuration (Kakt) of the mechanical actuating drive (1.1) identified via the identification device (91).

3. The electric motor-powered furniture drive according to one of claims 1 or 2, characterized in that the interface (90) has a substantially flat connecting plate (93) - preferably oriented along a vertical plane in the installed state - and connecting elements (94) arranged on the connecting plate (93) for the releasable connection of the electric motor-powered furniture drive (1.2) to connecting counterpieces (95) formed on the mechanical actuating drive (1.1).

4. The electric motor-powered furniture drive according to one of claims 1 to 3, characterized in that the identification device (91) has at least one mechanical tracer element (96), which is rotatably mounted on the at least one interface (90) and / or has at least one mechanical tracer element (96), which rests against at least one tracer element counterpiece (97) of the mechanical actuating drive (1.1), representing a parameter (P) of the mechanical actuating drive (1.1), in the case of connection between the electric motor-powered furniture drive (1.2) and the mechanical actuating drive (1.1) provided via the interface (90), wherein it is preferably provided, that the at least one mechanical tracer element (96) is movably, preferably rotatably or displaceably, mounted on the at least one interface (90).

5. The electric motor-powered furniture drive according to claim 4, characterized in that the rotatably mounted tracer element (96) is rotatable about an axis of rotation (T) - preferably oriented at right angles to the vertical plane - wherein the rotatably mounted tracer element (96) has a tracing surface (B) that faces away from the interface (90) and is inclined relative to the axis of rotation, preferably by an angle of between 30° and 60°, wherein it is preferably provided that the inclined tracing surface (B) has a tracing line (B1) closest to the interface, lying on the tracing surface (B) and leading away from the axis of rotation (T), and a tracing line (B2) furthest from the interface, lying on the tracing surface (B) and leading away from the axis of rotation (T), wherein it is preferably provided that the tracing line (B1) closest to the interface and the tracing line (B2) furthest from the interface are 180° apart from each other starting from the axis of rotation (T), wherein it is particularly preferably provided that the tracing line (B2) furthest from the interface also forms a tracing lug (N) that can be moved into the tracer element counterpiece (97).

6. The electric motor-powered furniture drive according to 3 or 4, characterized in that the displaceably mounted tracer element (96) has at least two separate tracing pins (98) protruding from the interface (90) - preferably at right angles to the vertical plane, and / or the displaceably mounted tracer element (96), preferably tracing pin (98), can be brought into contact with a conductor path (103), wherein the conductor path (103) comprises at least one conductor path contour (104), preferably numbering two and / or formed star-shaped, for determining a parameter (P) of the mechanical actuating drive (1.1), and / or the displaceably mounted tracer element (96), preferably tracing pin (98), comprises a first spring (101), which is preferably arranged inside the tracing pin (98) at least in regions, for determining a parameter (P) of the mechanical actuating drive (1.1), and / or a second spring (102), preferably arranged on the outside of the tracing pin (98).

7. The electric motor-powered furniture drive according to claim 5 and 6, characterized in that the first spring (101) is galvanically isolated from the tracing pin (98) and / or can be brought into contact with the conductor path (103), preferably with at least two conductor path contours (104).

8. The electric motor-powered furniture drive according to one of claims 1 to 7, characterized in that the mechanical actuating drive (1.1) can be ascertained via a combination of at least one parameter (P) determined via the identification device (91) and an opening angle of the mechanical actuating drive (1.1) that can preferably be determined through a reference movement of the furniture drive system (1).

9. The electric motor-powered furniture drive according to claim 3 or 4, characterized in that the displaceably mounted tracer element (96) has at least one tracing pin (98) protruding from the interface (90) - preferably at right angles to the vertical plane - wherein it is preferably provided that the displaceably mounted tracer element (96) can be arranged on an optionally present conductor path (103) and / or is arranged on the mechanical actuating drive (1.1) for contacting a defined region of the optionally present conductor path (103).

10. A furniture drive system (1) for a movable furniture part (2), in particular for a furniture flap in the form of a bi-fold lift flap (HF), an up and over lift flap (HS) or a lift up flap (HL) type of furniture flap, with the electric motor-powered furniture drive (1.2) according to at least one of the preceding claims and a mechanical actuating drive (1.1).

11. The furniture drive system according to claim 10, characterized in that the mechanical actuating drive (1.1) has - a support (4) for fitting the furniture drive system (1) on a furniture carcass (3), - an actuating arm device (5) that is movably, preferably rotatably, mounted on the support (4) and can be connected to the movable furniture part (2), wherein the electric motor (30) is connected or can be connected to the actuating arm device (5) and can be used to move the actuating arm device (5) at least in portions, and - at least one energy storage mechanism (6), preferably in the form of a spring assembly, which on one side engages on the support (4) and on the other side engages, preferably indirectly, on the actuating arm device (5) and / or the electric motor-powered furniture drive (1.2) is implemented as an assembly formed separately from the mechanical actuating drive (1.1) and these can be connected or are connected to each other via the interface (90), wherein the electric motor-powered furniture drive (1.2) has a driver (31), which can be driven by the at least one electric motor (30), for transmitting a torque of the electric motor (30) to the actuating arm device (5) of the mechanical actuating drive (1.1).

12. The furniture drive system according to claim 10 or 11, characterized in that the configuration (K) of the mechanical actuating drive (1.1) is selected from the group: - actuating drive for the bi-fold lift flap (HF) type of furniture flap, - actuating drive for the up and over lift flap (HS) type of furniture flap and - actuating drive for the lift up flap (HL) type of furniture flap and / or from a group of mechanical actuating drives (1.1), which are constructed substantially identical and differ from each other, preferably only, by a power factor (L) of the energy storage mechanism (6).

13. A piece of furniture (100) with a furniture carcass (3), at least one furniture part (2) that is movable, in particular about a horizontal axis, in particular in the form of a bi-fold lift flap (HF), lift up flap (HL) or up and over lift flap (HS), and a furniture drive system (1) according to at least one of claims 10 to 12.

14. A method for operating a furniture drive system (1) according to at least one of claims 10 to 12, with the steps of - connecting the electric motor-powered furniture drive (1.2) to the mechanical actuating drive (1.1) via the at least one interface (90) and - automatically identifying a configuration (K) of the mechanical actuating drive (1.1) via the identification device (91) when the electric motor-powered furniture drive (1.2) is connected to the mechanical actuating drive (1.1) via the at least one interface (90).

15. The method according to claim 14, characterized by the further steps of - detecting a parameter (P) of the mechanical actuating drive (1.1) via a sensor (92) of the identification device (91), - comparing the parameter (P) detected by the sensor (92) with stored data sets (F) relating to different configurations (K) of the mechanical actuating drive (1.1), - identifying the current configuration (Kakt) of the mechanical actuating drive (1.1) with reference to the stored data sets (F) and - outputting a control signal (I) to the electric motor (30) in dependence on the current configuration (Kakt) of the mechanical actuating drive (1.1) identified via the identification device (91).