Furniture drive

Abstract

A furniture drive (4) for driving a movable furniture part (3) in the form of an upwardly openable flap, comprising: at least one electric motor (14); at least one actuator (12) movable between two end positions for exerting a force on the furniture part (3) to be driven; a transmission (15) connected between the electric motor (14) and the actuator (12); wherein the at least one electric motor (14) and the at least one actuator (12) are arranged substantially one above the other in a common plane; wherein the electric motor (14) and the transmission (15) are arranged in a first housing (10) and the actuator (12) is arranged on a second housing (9), which is structurally separate from the first housing (10); wherein a lever assembly (18) is provided, via which the actuator (12) is pivotably connected to the housing (9), the actuator (12) can be integrated in at least one of the two end positions and the electric motor (14) can be substantially completely integrated in a common furniture panel (11) of the furniture body (2).

Description

Technical Field

[0001] The present invention relates to a furniture driving device for driving a movable furniture component, comprising:

[0002] - at least one electric motor,

[0003] at least one actuator movable between two end positions for exerting a force on the furniture part to be driven,

[0004] - a transmission device connected between the electric motor and the actuator,

[0005] - wherein the at least one electric motor and the at least one actuator are arranged substantially one above the other in a common plane,

[0006] wherein the electric motor and the transmission are arranged in a first housing and the actuator is arranged in a second housing which is structurally separated from the first housing,

[0007] In this case, a lever assembly is provided, via which the actuator is connected to the housing in a pivotable manner.

[0008] The invention further relates to a piece of furniture, preferably a top cabinet, having a furniture carcass formed from a furniture panel, a furniture part movable relative to the furniture carcass and a furniture drive for driving the movable furniture part. Background Art

[0009] For example, furniture drive systems with an actuator and an additional electric motor for driving movable furniture parts are already known from WO 2008 / 134786 A1, WO 2010 / 129979 A1 and WO 2017 / 177247 A1. The actuator has a drive arm (Ste ll arm) loaded by a force accumulator for moving the movable furniture part. For additional motion support of the drive arm, the electric drive unit can be selectively connected to the actuator in a releasable manner. The actuator and the electric drive unit are implemented as separate structural units, wherein the electric drive unit can be set as an additional and easily replaceable drive module when necessary. The disadvantage of this is that in the connected state between the actuator and the electric drive unit, the structural space of the furniture drive device is relatively large and cannot be used for special applications.

[0010] Further furniture drives are described in DE 102019102057 A1, WO 2020058363 A1, DE 202007006687 U1 and in US Pat. No. 2,912,237 A. Summary of the invention

[0011] The object of the present invention is to provide a furniture drive of the type mentioned in the introduction while avoiding the above-mentioned disadvantages.

[0012] According to the invention, this is solved by the features of claim 1. Further advantageous embodiments of the invention are defined in the dependent claims.

[0013] According to the invention, it is provided that the actuator can be integrated in at least one of the two end positions, and the electric motor can be integrated substantially completely in a common furniture panel of the furniture carcass.

[0014] In this way, the width of the furniture drive can be reduced so that the furniture drive can also be arranged concealed in a furniture panel of a piece of furniture (e.g. with a maximum thickness of 19 mm or 16 mm). In this way, a very compact arrangement of the furniture drive is possible, wherein the available space in the interior of the furniture carcass is not restricted.

[0015] Since the furniture drive is barely visible in the assembled state, the overall visual impression can also be improved. For example, a visually appealing, uniform and flawless surface quality of the furniture panel can be achieved on the inside and outside of the furniture panel.

[0016] According to a preferred embodiment, it can be provided that the common housing can be arranged within the wall thickness of the furniture panel, which preferably has a thickness of less than 20 mm.

[0017] It is preferably provided that the two housings are arranged one above the other in a coupled state substantially in a common plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Further details and advantages of the invention emerge from the following description of the figures.

[0019] Figure 1a , Figure 1b The furniture is shown in perspective and in exploded view,

[0020] Figure 2 An embodiment of a furniture drive device is shown in a perspective view.

[0021] Figure 3a , Figure 3b An embodiment of a furniture drive with a transmission device to be subsequently assembled and having a rod for coupling between a transmission and an actuator, and an enlarged detailed view thereof, are shown.

[0022] Figure 4a , Figure 4bA further exemplary embodiment of a furniture drive having a transmission device with a toothing system for the coupling between a gear mechanism and an actuator is shown, as well as an enlarged detailed view thereof. DETAILED DESCRIPTION

[0023] Figure 1a A piece of furniture 1 in the form of a top cabinet is shown, which has a furniture body 2 and a furniture part 3 that is movable relative to the furniture body 2. The furniture part 3 is designed in the form of a flap that can be opened upwards. The movable furniture part 3 is supported in such a way that it can be moved relative to the furniture body 2 about a horizontally extending axis 5 via a furniture drive 4.

[0024] As in the case presented, the piece of furniture 1 can comprise a rear wall 6 , an upper base 7 and a lower base 8 .

[0025] The piece of furniture 1 may comprise a furniture panel 11 in the form of a side wall, wherein at least one housing 9, 10 of the furniture drive 4 is respectively substantially completely inserted into a recess 13a, 13b ( Figure 1b )middle.

[0026] Figure 1b The exploded diagram shows the Figure 1a Furniture 1. Figure 1b The housing 10, which is only schematically shown in FIG. 1 , is provided with an electric motor 14 ( Figure 2 ). An actuator 12 which is connected or connectable to the movable furniture part 3 is arranged pivotably on the housing 9 .

[0027] The two housings 9 , 10 preferably have a maximum width 32 of less than 18 mm, preferably less than 16 mm.

[0028] Not all furniture drives 4 have to be equipped with an electric drive unit. In the presented case, only one of the two furniture drives 4 has an electric drive unit.

[0029] Alternative embodiments of the piece of furniture 1 are conceivable in which the furniture drive 4 according to the invention is used.

[0030] The piece of furniture 1 is preferably configured as a top cabinet and comprises the following features:

[0031] - at least one furniture body 2 formed from a furniture panel 11,

[0032] at least one movable furniture part 3 in the form of a flap which can be opened upwards, and

[0033] at least one furniture drive 4, wherein the furniture part 3 is movably mounted on the piece of furniture 1 via at least one furniture drive 4, wherein the furniture drive 4 has at least one electric motor 14 ( Figure 2 ), at least one actuator 12 movable between two end positions and a transmission device 15 connected between the electric motor 14 and the actuator 12 ( Figure 2 ), which is used to exert a force on the furniture part 3 to be driven,

[0034] In this case, the actuator 12 is in at least one of the two end positions and the electric motor 14 is substantially completely integrated into the common furniture panel 11 of the furniture carcass 2 .

[0035] According to a preferred embodiment, the housing 9 , 10 of the at least one furniture drive 4 is inserted substantially completely into the recess 13 a , 13 b of the furniture panel 11 .

[0036] Figure 2 A furniture drive 4 for driving a movable furniture part 3 is shown, wherein the furniture drive 4 has at least one housing 9, 10, at least one electric motor 14, at least one actuator 12 which is preferably movable between two end positions, and a transmission 15 connected between the electric motor 14 and the actuator 12, which actuator is used to exert a force on the furniture part 3 to be driven.

[0037] The electric motor 14 and the transmission 15 are arranged in a first housing 10 , and the actuator 12 is arranged on a second housing 9 structurally separate from the first housing 10 , wherein the two housings 9 , 10 are arranged one above the other in a common plane in a coupled state.

[0038] For example, the electric motor 14 can be designed as an external rotor motor or a disk motor. These motors are distinguished by a relatively flat design, so that the electric motor 14 can be integrated into the wall thickness of the furniture panel 11. An external rotor motor or a disk motor can provide a high drive force proportional to the diameter of the motor.

[0039] At least one drive belt 26 can be provided for the transmission of force from the electric motor 14 to the transmission 15. The use of a drive belt 26 has the advantage that the drive belt 26 serves as a first transmission stage for reducing the high rotational speed of the electric motor 14. Furthermore, the noise development of the furniture drive 4 can be reduced by the drive belt 26.

[0040] At least one transmission device 17 is provided, by means of which the transmission device 15 is connected to the actuator 12 or alternatively can be detachably connected. The transmission device 17 can have at least one rod 17a and / or at least one toothing 31a, 31b ( Figure 4a , Figure 4b ). Alternative designs of the transfer device 17 are also conceivable.

[0041] According to a possible embodiment, it can be provided that at least one rod 17a of the transfer device 17

[0042] connected or releasably connectable to at least one transmission element 24 of the transmission 15, and / or

[0043] is connected or releasably connectable to at least one pivotable lever 25 of the actuator 12 , and / or

[0044] is arranged at least partially inside a housing 9 , 10 of the furniture drive 4 and / or is arranged at least partially outside a housing 9 , 10 of the furniture drive 4 , and / or

[0045] - at least partially curved, and / or

[0046] If the actuator 12 and / or the electric motor 14 are already preassembled on the furniture carcass 2 , they can also be connected preferably detachably to the actuator 12 and / or to the gear mechanism 15 .

[0047] At least one lever assembly 18 is provided, via which the actuator 12 is pivotably connected to the housing 9. In the present case, the lever assembly 18 forms a 7-joint assembly.

[0048] At least one mechanical force accumulator 19 is provided, with the aid of which a force for compensating for the weight of the furniture part 3 to be driven can be exerted on the actuator 12 .

[0049] For example, the mechanical force accumulator 19 may have one or more compression springs 19 a and / or at least one tension spring and / or at least one gas pressure spring.

[0050] In order to transmit the force stored in the mechanical force accumulator 19 to the actuator 12 , at least one force transmission rod 20 may be provided.

[0051] Furthermore, a force adjustment device 21 can be provided, which can preferably be actuated from the end side of the housing 9 and by means of which the prestressing force of the force accumulator 19 can be adjusted.

[0052] In a first end position, which corresponds to the closed position of the movable furniture part 3 , the actuator 12 is arranged substantially completely in the housing 9 .

[0053] The transmission 15 comprises a plurality of transmission stages 16 , in which overload clutches and / or freewheeling clutches may also be integrated.

[0054] According to a possible embodiment, the first housing 10 and / or the second housing 9 may be configured

[0055] - substantially cuboid in design, and / or

[0056] - has two housing walls 22 which are spaced apart from one another in certain areas, and / or

[0057] - each having at least one housing wall 22 which, in the coupled state, is arranged one above the other in a common plane with the housing wall 22 of the other housing 9 , 10 , and / or

[0058] - has a longitudinal side 23 which, in the coupled state, at least partially rests against the longitudinal side 23 of the other housing 9 , 10 , and / or

[0059] - has a maximum width 32 which is substantially identical to the maximum width 32 of the other housing 9 , 10 , and / or

[0060] - has a maximum width 32 of less than 18 mm, preferably less than 16 mm, and / or

[0061] - has a maximum height which is substantially the same as the maximum height of the other housing 9 , 10 .

[0062] For clarity, Figure 2 The shielding second housing wall 22 of the housing 9 , 10 is not shown.

[0063] In the exemplary embodiment shown, it can be seen that in the use position of the furniture drive 4 the electric motor 14 is arranged below the actuator 12 .

[0064] According to a preferred embodiment, it can be provided that the housing 9, 10 of at least one furniture drive 4 is substantially completely inserted into the recess 13a, 13b ( Figure 1b )middle.

[0065] Furthermore, at least one cover plate 33 can be provided, which has at least one laterally protruding and preferably substantially annularly configured flange 33a. The recesses 13a, 13b ( Figure 1b ). In this way, even if the edge region is slightly worn, it is possible to dispense with the laborious further processing of the edge region.

[0066] It is preferably provided that the actuator 12 can be guided through at least one cover plate 33 in at least one relative position.

[0067] At least one cover plate 33 can be connected to the first housing 10 and / or the second housing 9. Alternatively, it is possible that at least one cover plate 33 is designed as a component separate from the housings 9, 10, which can be connected, preferably locked, to at least one of the two housings 9, 10 after the furniture drive 4.

[0068] Preferably, it is provided that at least one cover plate 33 preferably substantially completely surrounds the first housing 10 and / or the second housing 9. As a result, the recesses 13a, 13b ( Figure 1b ) can be covered in an edge area which surrounds the first housing 10 and / or the second housing 9 .

[0069] Figure 3a The embodiment of the furniture drive 4 is shown with a transmission device 17 to be subsequently mounted, which serves for coupling between the transmission 15 and the actuator 12. The transmission device 17 can thus also be connected to the furniture drive 4 when the furniture drive 4 is already pre-mounted on the furniture carcass 2.

[0070] In the exemplary embodiment shown, the transmission device 17 comprises at least one rod 17 a which can be connected to the gear mechanism 15 and / or the actuator 12 , preferably in a detachable manner.

[0071] For the assembly of the rod 17a,

[0072] - the rod 17a can be introduced into the first housing 10,

[0073] - can be suspended on or in a movably mounted transmission element 28 of the transmission 15,

[0074] - can swing while suspended, and

[0075] It can be fastened to a fastening point 29 of the actuator 12 , preferably to a pivotable transmission arm 27 .

[0076] Figure 3b The enlarged view shows Figure 3a The fastening point 29 of the actuator 12 can be, for example, a bolt which projects laterally from the transmission arm 27 , wherein the rod 17 a of the transmission device 17 can be fastened to the actuator 12 by a retaining element 30 , such as a spring clip.

[0077] In the mounted state, the rod 17 a is arranged partially inside the housing 9 , 10 of the furniture drive 4 and / or partially outside the housing 9 , 10 of the furniture drive 4 .

[0078] Figure 4a A further exemplary embodiment of a furniture drive 4 is shown with a transmission device 17 having toothing 31 a , 31 b for the coupling between the gear mechanism 15 and the actuator 12 .

[0079] According to a possible embodiment, it can be arranged that at least one tooth portion 31a of the transfer device 17

[0080] - connected in a kinematically coupled manner to the transmission 15, and / or

[0081] - partially protrudes from the housing 10 in which the electric motor 14 and the transmission 15 are arranged, and / or

[0082] - cooperates with at least one further toothing 31 b, which is connected in a kinematically coupled manner to the actuator 12, preferably wherein the at least one further toothing 9 partially protrudes from the housing 9, on which the actuator 12 is movably arranged, and / or

[0083] - is designed as a rotatably mounted gearwheel.

[0084] Figure 4b The enlarged view shows Figure 4a The area enclosed in the frame.

Claims

1. A furniture drive (4) for driving a movable furniture component (3) in the form of a flap that can be opened upwards, the furniture drive comprising: - at least one electric motor (14), at least one actuator (12) movable between two end positions, said actuator being used to exert a force on the furniture part (3) to be driven, - a transmission device (15) connected between the electric motor (14) and the actuator (12), wherein the at least one electric motor (14) and the at least one actuator (12) are arranged substantially one above the other in a common plane, wherein the electric motor (14) and the transmission (15) are arranged in a first housing (10), and the actuator (12) is arranged in a second housing (9) which is structurally separate from the first housing (10), wherein a rod assembly (18) is provided, via which the actuator (12) is connected to the housing (9) in a pivotable manner, It is characterized in that the actuator (12) can be integrated in at least one of two end positions and the electric motor (14) can be integrated substantially completely in a common furniture panel (11) of the furniture carcass (2).

2. The furniture drive device (4) according to claim 1, characterized in that In the coupled state, the two housings (9, 10) are arranged one above the other in a substantially common plane.

3. The furniture drive device (4) according to claim 1 or 2, characterized in that: The first shell (10) and / or the second shell (9) - are substantially cuboid in design, and / or - has two housing walls (22) which are partially spaced apart from one another, and / or - each having at least one housing wall (22) which, in the coupled state, is arranged one above the other in a common plane with a housing wall (22) of the other housing (9, 10), and / or - has a longitudinal side (23) which, in the coupled state, at least partially rests against a longitudinal side (23) of the other housing (9, 10), and / or - has a maximum width (32) which is substantially the same as the maximum width (32) of the other housing (9, 10), and / or - has a maximum width (32) of less than 18 mm, preferably less than 16 mm, and / or - has a maximum height which is substantially the same as the maximum height of the other housing (9, 10).

4. The furniture drive device (4) according to any one of claims 1 to 3, characterized in that In the use position of the furniture drive (4), the electric motor (14) is arranged below the actuator (12).

5. The furniture drive device (4) according to any one of claims 1 to 4, characterized in that At least one transmission device (17) is provided, by means of which the transmission device (15) is connected or can be connected to the actuator (12), wherein the transmission device (17) preferably comprises at least one rod (17a) and / or at least one toothed section (31a, 31b).

6. The furniture drive device (4) according to claim 5, characterized in that At least one rod (17a) of the transfer device (17) - connected or releasably connectable to at least one transmission element (24) of the transmission (15), and / or - connected or releasably connectable to at least one pivotable lever (25) of the actuator (12), and / or - is arranged at least partially inside a housing (9, 10) of the furniture drive (4) and / or is arranged at least partially outside a housing (9, 10) of the furniture drive (4), and / or - at least partially curved, and / or - When the actuator (12) and / or the electric motor (14) are already pre-assembled on the furniture carcass (2), they can also be connected to the actuator (12) and / or to the transmission (15) in a preferably detachable manner.

7. The furniture drive device (4) according to claim 5 or 6, characterized in that At least one tooth portion (31a, 31b) of the transfer device (17) - connected in a kinematically coupled manner to the transmission (15), and / or - partially protrudes from a housing (10) in which the electric motor (14) and the transmission (15) are arranged, and / or - interacting with at least one further toothing (31b), which is connected to the actuator (12) in a kinematically coupled manner, preferably wherein the at least one further toothing (31b) partially protrudes from the housing (9), the actuator (12) being arranged in a movably manner on the housing (9), and / or - is designed as a rotatably mounted gearwheel.

8. The furniture drive device (4) according to any one of claims 1 to 7, characterized in that The furniture drive (4) comprises at least one housing (9, 10) having a maximum width (24) of less than 18 mm, preferably less than 16 mm.

9. The furniture drive device (4) according to any one of claims 1 to 8, characterized in that The at least one electric motor (14) is designed as an external rotor motor or a disk motor.

10. The furniture drive device (4) according to any one of claims 1 to 9, characterized in that At least one drive belt (26) is provided for transmitting force from the electric motor (14) to the transmission (15).

11. The furniture drive device (4) according to any one of claims 1 to 10, characterized in that - at least one mechanical force accumulator (19) is provided, by means of which a force for compensating for the weight of the furniture part (3) to be driven can be applied to the actuator (12), and / or The actuator (12) is arranged substantially completely in the housing (9) in the first end position.

12. The furniture drive device (4) according to any one of claims 1 to 11, characterized in that At least one cover plate (33) is provided, wherein the at least one actuator (12) can be guided through the at least one cover plate (33) in at least one relative position, preferably wherein the at least one cover plate (33) - has at least one flange (33a) which projects laterally and is preferably of substantially annular configuration, and / or - in the assembled state of the furniture drive (4), at least partially covering an edge region of the furniture panel (11) surrounding the furniture drive (4), and / or connected to the furniture drive (4) or embodied as a separate component which can be connected to the furniture drive (4) preferably detachably.

13. A piece of furniture (1), preferably a top cabinet, comprising: - at least one furniture body (2) formed from a furniture panel (11), at least one movable furniture part (3) in the form of a flap which can be opened upwards, - at least one furniture drive (4) according to any one of claims 1 to 12, wherein the furniture part (3) is supported on the furniture (1) in a movable manner via the at least one furniture drive (4), wherein the furniture drive (4) has at least one electric motor (14), at least one actuator (12) movable between two end positions, and a transmission (15) connected between the electric motor (14) and the actuator (12), wherein the actuator is used to exert a force on the furniture part (3) to be driven, It is characterized in that the actuator (12) is integrated in at least one of two end positions and the electric motor (14) is substantially completely integrated in a common furniture panel (11) of the furniture carcass (2).

14. The piece of furniture (1) according to claim 13, characterized in that The housing (9, 10) of the at least one furniture drive device (4) is substantially completely inserted into the recess (13a, 13b) of the furniture panel (11), preferably wherein: At least one cover plate (33) covers the edge region of the recess (13a, 13b) at least in sections.

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