Furniture drive for driving movable furniture part

Abstract

The invention relates to a furniture drive (1) for driving a movable furniture part (2), comprising: at least one housing (3, 21); at least one electric motor (4); at least one bearing device (5) via which the electric motor (4) is supported in and / or on the housing (3, 21), the at least one bearing device (5) comprising at least one damping element (6, 15) made of a sound-absorbing material; at least one actuator (7), preferably movable back and forth between two end positions, for applying a force to the furniture part (2) to be driven; and a transmission (8) connected between the electric motor (4) and the actuator (7); wherein at least one coupling device (9, 10) is provided, via which the electric motor (4), preferably a shaft (11) of the electric motor (4) or a gearwheel (12) connected thereto, is connected to the transmission (8), the coupling device (9, 10) being at least partially made of sound-absorbing material, and the housing (3, 21) having a maximum width (24) of less than 18 mm, preferably less than 16 mm.

Description

Field of the Invention

[0001] The present invention relates to a furniture drive device for driving a movable furniture part as described in the preamble of claim 1 and to a piece of furniture including at least one movable furniture part and at least one such furniture drive device, wherein the furniture part is movably supported on the furniture via the at least one furniture drive device. Background Art

[0002] Furniture drive devices are known from the prior art in which the sound transmission of noise caused by an electric motor is reduced by supporting the electric motor in and / or on a housing by means of a support device including a damping element made of a sound-absorbing material.

[0003] This measure has been sufficient so far because servo motors as electric motors are applied at relatively low speeds. At the same time, the furniture drive device has a relatively large structural shape and in the case of a flap fitting is externally mounted on the flap fitting and is thus surrounded by air, so that sound can only propagate relatively difficultly anyway.

[0004] However, in recent years, efforts have been made to reduce the structural shape of the furniture drive device so that the furniture drive device can also be hiddenly arranged in the wall of the furniture in particular. On the one hand, this requires the use of other electric motors with higher speeds. On the other hand, when integrated in the wall, sound can propagate better. In the worst case, the furniture body acts as a resonator.

[0005] Under these preconditions, the noise reduction measures known from the prior art are insufficient. Summary of the Invention

[0006] It is an object of the present invention to provide an improved furniture drive device compared with the prior art and a piece of furniture with such an improved furniture drive device, wherein the outstanding advantage of the furniture drive device lies in particular in reducing the sound transmission of noise caused by an electric motor.

[0007] The object is solved by the features of claims 1 and 13.

[0008] Therefore, at least one coupling device is provided in the furniture drive device, and the electric motor, preferably the shaft of the electric motor or a gear connected thereto, is connected to a transmission device via the coupling device, wherein the coupling device is at least partially made of a sound-absorbing material.

[0009] In this way, the electric motor is completely decoupled from the housing and the powertrain: on the one hand via a support device relative to the housing and on the other hand via a coupling device relative to the powertrain. In other words, not only is noise decoupled between the electric motor and the housing, but at the same time noise decoupling also takes place in the powertrain. Thereby, the sound transmission of the noise caused by the electric motor is effectively reduced.

[0010] According to a preferred embodiment, the at least one coupling device comprises a belt, preferably a toothed belt. In this case, the belt can fulfill a dual function: on the one hand, the belt constitutes the first stage of transmission in the transmission device, and on the other hand, noise decoupling is achieved between the electric motor and the transmission device by using the belt.

[0011] Alternatively or additionally, it can be provided that at least one coupling device in the form of a gear is used, in which a sound-absorbing material is embedded, preferably in the form of an insert. In this way, sound can be decoupled in the transmission stage with the gear.

[0012] The advantages of the present invention become particularly apparent in an embodiment in which the at least one electric motor is designed as an outer rotor motor or as a disc rotor motor. The outstanding advantage of these motors lies in their relatively flat structural shape. However, these motors also have high rotational speeds and thus increased noise generation, which can be intercepted technically well by means of the present invention.

[0013] A particularly preferred embodiment is characterized in that the at least one support device comprises at least one support member connected to the electric motor, preferably the support member is designed as a steel shaft, a rivet or a pin. In this regard, it has proven advantageous that at least one first damping element and at least one second damping element are arranged on the support member, wherein the first damping element reduces the sound propagation between the electric motor and the housing in a first spatial direction and the second damping element reduces the sound propagation between the electric motor and the housing in a second spatial direction transverse to the first spatial direction, preferably the first and / or second damping element is designed as a damping disc or a damping sleeve. In this case, it is appropriate to use a foamed damping disc and / or a damping sleeve, in which a steel shaft / rivet / pin is inserted. The damping disc can be pre-tensioned via the housing cover and the housing bottom.

[0014] Further advantageous embodiments are defined in the dependent claims. Description of the Drawings

[0015] The further details and advantages of the present invention will be explained in more detail below with reference to the drawings and the description of the drawings. In the figures:

[0016] Figure 1 、 Figure 2 shows a perspective view of a piece of furniture according to an embodiment (Figure 1 ) and exploded view( Figure 2 ),

[0017] Figure 3 showing a top view from the side of a furniture drive device according to an embodiment, without a housing cover,

[0018] Figures 4 to 7 showing a perspective view of a structural component including a motor( Figure 4 ), partial exploded view( Figure 5 ), top view from above( Figure 6 ), cross-sectional view along cross-section 38( Figure 7 ), wherein local part 44 is additionally shown enlarged,

[0019] Figure 8 , Figure 9 showing a top view from the side of a part of a furniture drive device including a motor( Figure 8 ) and a cross-sectional view along cross-section 43( Figure 9 ), wherein local part 45 is additionally shown enlarged, and

[0020] Figures 10 to 12 showing a coupling device including a gear with an insert, wherein, Figure 10 showing a perspective view, Figure 11 showing an exploded view and Figure 12 showing a cross-sectional view, wherein local part 46 is additionally shown enlarged. Detailed Description

[0021] Figure 1 and Figure 2 showing a piece of furniture 25 in the form of a wall cabinet, which includes a movable furniture part 2 in the form of a flap that can be opened upward and a furniture drive device 1, wherein the furniture part 2 is movably supported on the furniture 25 via these furniture drive devices 1.

[0022] The furniture part 2 can pivot about a horizontal axis 31.

[0023] As shown in the case, the furniture 25 can include a rear wall 28, an upper bottom plate 29, and a lower bottom plate 30.

[0024] The furniture 25 can include a wall 26, wherein the housings 3, 21 of the furniture drive device 1 are respectively substantially completely inserted into recesses 27 in the wall 26.

[0025] The housings 3, 21 preferably have a maximum width 24 of less than 18 mm, preferably less than 16 mm.

[0026] A motor 4 is arranged in the housing 3, in Figure 2Only the housing is schematically shown therein. In particular, an actuator 7 connectable or connected to a furniture part is pivotally arranged on the housing 21.

[0027] Not all furniture drives 1 have to be equipped with an electric motor-driven drive unit. In the case shown, only one of the furniture drives 1 has an electric motor-driven drive unit.

[0028] Alternative designs of furniture are also conceivable, in which the furniture drive according to the invention is applied.

[0029] Figure 3 A furniture drive 1 for driving a movable furniture part 2 is shown, which has at least one housing 3, 21, at least one electric motor 4, at least one support device 5 (the electric motor 4 is supported in and / or on the housing 3, 21 via the support device, wherein the at least one support device 5 includes at least one damping element 6, 15 made of sound-absorbing material), at least one actuator 7 preferably movable back and forth between two end positions for applying a force to the furniture part 2 to be driven, and a transmission 8 connected between the electric motor 4 and the actuator 7, wherein at least one coupling device 9, 10 is provided, and the electric motor 4, preferably the shaft 11 of the electric motor 4 or a gear 12 connected thereto, is connected to the transmission 8 via the coupling device, wherein the coupling device 9, 10 is at least partially made of sound-absorbing material. Optional details of the support device 5 and the coupling device 9, 10 are shown in the following figures.

[0030] As in the case shown, the electric motor 4 and the transmission 8 can be arranged in a first housing 3, while the actuator 7 can be arranged on a second housing 21 structurally separate from the first housing 3, and preferably the two housings 3, 21 are arranged one above the other substantially in a common plane in a coupled state.

[0031] At least one transmission device 20 is provided, and the transmission 8 is connected to the actuator 7 by means of the transmission device, wherein the transmission device 20 includes at least one rod. Alternative designs of the transmission device 20 are also conceivable.

[0032] At least one rod device 22 is provided, and the actuator 7 is pivotally connected to the housing 21 via the rod device. In this specific case, the rod device 22 constitutes a seven-hinged device.

[0033] At least one mechanical accumulator 23 is provided, and a force can be applied to the actuator 7 by means of the mechanical accumulator to compensate for the gravity of the furniture part 2 to be driven. The mechanical accumulator 23 can have one or more compression springs 34.

[0034] In order to transfer the force stored in the mechanical accumulator 23 to the actuator 7, a force transfer rod 35 can be provided.

[0035] Furthermore, a force adjustment device 33 may be provided, which is preferably operable from the end side of the housing 21 and by means of which the spring preload of the spring 34 can be adjusted.

[0036] In a first end position corresponding to the closed position of the furniture part 2, the actuator 7 is arranged almost completely in the housing 21.

[0037] The transmission 8 includes a plurality of transmission stages 32, in which an overload clutch and / or a one-way clutch may also be integrated.

[0038] Figures 4 to 7 A structural component including the electric motor 4 is shown.

[0039] In this structural component, the coupling device 9 includes a belt, which may be configured as a toothed belt as shown. The belt may have an inner toothed portion, which cooperates with the teeth of a gear 12 arranged on the shaft 11 of the electric motor 4. The inner toothed portion is not shown in the figure.

[0040] The teeth arranged on the inner side of the belt may be formed of an elastomer. For example, natural rubber, neoprene, hydrogenated acrylonitrile butadiene rubber or polyurethane plastic may be considered as the material of the teeth.

[0041] In the shown case, the at least one electric motor 4 is configured as an external rotor motor. Alternatively, a disc rotor motor is also suitable for use.

[0042] The electric motor 4 is supplied via a power supply and a signal line 36.

[0043] The electric motor 4 has a motor flange 37.

[0044] The at least one support device 5 has at least one support member 14 connected to the electric motor 4, wherein the support member is configured as a steel shaft, a rivet or a pin.

[0045] In a specific case, more than one, preferably three support devices 5 are provided, and the electric motor 4 is supported in and / or on the housing 3 via these support devices.

[0046] The sound-absorbing material of the damping elements 6, 15 of the support device 5 and / or the coupling devices 9, 10 is, for example, natural rubber, synthetic rubber, plastic or open-cell or closed-cell materials, preferably polyurethane elastomer, rubber foam, silicone foam, EVA foam or PE foam.

[0047] Figure 8 and Figure 9 A part of the furniture drive device 1 including the electric motor 4 is shown.

[0048] At least one first damping element 6 and at least one second damping element 15 are arranged on the support part 14, wherein the first damping element 6 is arranged such that the first damping element reduces the sound propagation between the electric motor 4 and the housing 3 in a first spatial direction 16, and the second damping element 15 is arranged such that the second damping element reduces the sound propagation between the electric motor 4 and the housing 3 in a second spatial direction 17 transverse to the first spatial direction 16. Preferably, the first and / or second damping elements 6, 15 are configured as damping disks or damping sleeves.

[0049] The support device 5 has at least one free end 18 which is arranged in a recess 19 of the housing 3.

[0050] The electric motor 4 and the motor flange 37 do not come into direct contact with the housing 3 at any point.

[0051] Figures 10 to 12 A coupling device 10 is shown, which coupling device includes a gear in which a sound-absorbing material is embedded, preferably in the form of an insert 13.

[0052] The insert 13 is arranged between a first gear element 39 and a second gear element 40. The first gear element 39 is connected to the insert 13 via a first form-locking connection device 41. The second gear element 40 is connected to the insert 13 via a second form-locking connection device 42. The insert 13 reduces the sound transmission between the two gear elements 39 and 40.

[0053] For example, the gear can be used as a first transmission stage and / or combined with a belt, as shown in the previous figures.

Claims

1. Furniture drive device (1) for driving a movable furniture part (2), comprising: At least one housing (3, 21); At least one electric motor (4); At least one support device (5), via which the electric motor (4) is supported in and / or on the housing (3, 21), wherein the at least one support device (5) includes at least one damping element (6, 15) made of sound-absorbing material; At least one actuator (7), preferably movable back and forth between two end positions, for applying a force to the furniture part (2) to be driven; and A transmission device (8) connected between the electric motor (4) and the actuator (7), Characterized in that there is provided at least one coupling device (9, 10), via which the electric motor (4), preferably the shaft (11) of the electric motor (4) or a gear (12) connected thereto, is connected to the transmission device (8), wherein the coupling device (9, 10) is at least partially made of sound-absorbing material.

2. The furniture drive device (1) according to claim 1, wherein, The at least one coupling device (9) includes a belt, preferably a toothed belt.

3. The furniture drive device (1) according to claim 1 or 2, wherein, The at least one coupling device (10) includes a gear in which a sound-absorbing material is embedded, preferably in the form of an insert (13).

4. The furniture drive device (1) according to one of claims 1 to 3, wherein, The at least one electric motor (4) is configured as an external rotor motor or a disc rotor motor.

5. The furniture drive device (1) according to one of claims 1 to 4, wherein, The at least one support device (5) includes at least one support member (14) connected to the electric motor (4), preferably the support member is configured as a steel shaft, a rivet or a pin.

6. The furniture drive device (1) according to claim 5, wherein, At least one first damping element (6) and at least one second damping element (15) are arranged on the support member (14), wherein the first damping element (6) is arranged such that it reduces the sound transmission between the electric motor (4) and the housing (3) in a first spatial direction (16), and the second damping element (15) is arranged such that it reduces the sound transmission between the electric motor (4) and the housing (3) in a second spatial direction (17) transverse to the first spatial direction (16), preferably the first and / or second damping element (6, 15) is configured as a damping disc or a damping sleeve.

7. The furniture drive device (1) according to claim 5 or 6, wherein, The support device (5) has at least one free end (18), which is arranged in a groove (19) of the housing (3).

8. The furniture drive device (1) according to one of claims 1 to 7, wherein, There are more than one, preferably three support devices (5), via which the electric motor (4) is supported in and / or on the housing (3).

9. The furniture drive device (1) according to one of claims 1 to 8, wherein, The sound-absorbing material of the damping elements (6, 15) of the support device (5) and / or the coupling device (9, 10) is natural rubber, synthetic rubber, plastic or open-cell or closed-cell material, preferably polyurethane elastomer, rubber foam, silicone foam, EVA foam or PE foam.

10. The furniture drive device (1) according to one of claims 1 to 9, wherein, There is provided at least one transmission device (20), via which the transmission device (8) is connected to the actuator (7), preferably the transmission device (20) includes at least one rod.

11. The furniture drive device (1) according to one of claims 1 to 10, wherein, The electric motor (4) and the transmission (8) are arranged in a first housing (3), and the actuator (7) is arranged on a second housing (21) structurally separated from the first housing (3). Preferably, the two housings (3, 21) are arranged one above the other in a substantially common plane in a coupled state.

12. The furniture drive device (1) according to one of claims 1 to 11, wherein at least one rod device (22) is provided, via which the actuator (7) is pivotally connected to the housing (21), and / or at least one mechanical accumulator (23) is provided, by means of which a force can be exerted on the actuator (7) to compensate for the weight of the furniture part (2) to be driven, and / or the actuator (7) is arranged substantially completely within the housing (21) in a first end position.

13. The furniture drive device (1) according to one of claims 1 to 12, wherein, The housings (3, 21) have a maximum width (24) of less than 18 mm, preferably less than 16 mm.

14. Furniture (25), preferably wall cabinets, comprising at least one movable furniture part (2), preferably in the form of a flap door that can be opened upwards, and at least one furniture drive device (1) according to one of the preceding claims, wherein, The furniture part (2) is movably supported on the furniture (25) via the at least one furniture drive device (1).

15. The furniture (25) according to claim 14, wherein, The furniture (25) includes at least one wall (26), wherein the housings (3, 21) of the at least one furniture drive device (1) are substantially completely inserted into recesses (27) in the wall (26).

16. A vehicle (1), in particular a monorail vehicle, comprising: at least one front fork (2) suitable for supporting a front wheel (3); at least one mudguard (4) mounted on the front fork (2); a data detection unit (5) with at least one sensor (6) for detecting data related to the vehicle (1) and / or the surrounding environment; characterized in that the data detection unit (5) includes a satellite signal receiver (8) which is arranged in front of the front fork (2), preferably substantially centrally on the upper side of the mudguard (4).

17. The vehicle (1) according to the preceding claim, characterized in that, The satellite signal receiver (8) is fixed, preferably detachably fixed, above and / or on the mudguard (4).

18. The vehicle (1) according to one of the preceding claims, characterized in that, The satellite signal receiver (8) has at least one first fixing device (9) configured to fix, preferably detachably fix, the satellite signal receiver (8) above and / or on the mudguard (4). The vehicle (1) according to one of the preceding claims, characterized in that, The data detection unit (5) has a storage unit (7).

20. The vehicle (1) according to claim 4, characterized in that, The storage unit (7) and the satellite signal receiver (8) are implemented and / or arranged separately from each other.

21. The vehicle (1) according to one of claims 4 or 5, characterized in that, The storage unit (7) has at least one second fixing device (10) configured to fix, preferably detachably fix, the storage unit (7) to the vehicle (1).

22. The vehicle (1) according to claim 6, characterized in that, The at least one second fixing device (10) is configured to fix, preferably detachably fix, the storage unit (7) to the front fork (2), in particular on the fork beam.

23. The vehicle (1) according to one of claims 3 to 7, characterized in that, The at least one first fixing device (9) and / or the at least one second fixing device (10) has at least one strap (11), preferably at least one elastic strap, preferably with at least one locking element (12).

24. The vehicle (1) according to one of claims 3 to 8, characterized in that, The storage unit (7) and the satellite signal receiver (8) are connected to each other for data, preferably connected to each other for data via a detachable data line (13), in particular for mutually transmitting the detected data. Vehicle (1) according to at least one of the preceding claims, characterized in that, The data detection unit (5) has an interface (14) for transmitting external data and / or detected data and / or data received by the vehicle, in particular for transmitting data to an external receiver and / or receiving data from an external transmitter.

26. The vehicle (1) according to claim 10, characterized in that, The interface (14) is configured for wireless data transmission, in particular according to the W-Lan standard and / or the Bluetooth standard.

27. The vehicle (1) according to one of claims 3 to 11, characterized in that, The storage unit (7) has at least one memory (15) for storing data detected by the satellite signal receiver (8) and / or the at least one sensor (6) and / or externally received data.

28. The vehicle (1) according to one of the preceding claims, characterized in that, The data detection unit (5) has at least one lamp (16), in particular for indicating a status related to the vehicle (1) and / or related to the data detection unit (5).

29. The vehicle (1) according to one of the preceding claims, characterized in that, The data detection unit (5) has at least one switch (17) configured to switch on and / or switch off the data detection unit (5) and / or affect the function of the data detection unit (5).

30. The vehicle (1) according to one of the preceding claims, characterized in that, The data detection unit (5) has at least one detachable electrical connection (18) to the vehicle (1) and / or to a power supply.

31. The vehicle (1) according to one of claims 3 to 15, characterized in that, The storage unit (7) and the satellite signal receiver (8) are connected to each other by a wire (19), in particular detachably connected to each other.

32. The vehicle (1) according to one of the preceding claims, characterized in that, The data detection unit (5) has an acceleration sensor and / or a temperature sensor and / or an inclination sensor.

33. The vehicle (1) according to one of the preceding claims, wherein, The data detection unit (5) has at least one transmission device (20), in particular a transmission device including at least one cable input and / or one cable output, for transmitting current related to the vehicle (1) and / or data and / or data related to the surrounding environment. The vehicle (1) according to one of the preceding claims, characterized in that The data detection unit (5) has at least one computing unit (21), in particular for compiling statistical data from the detected data and / or data received by the vehicle (1).

35. A data detection unit (5), having at least one sensor (6) for detecting data relating to a vehicle (1), in particular a monorail vehicle, and / or the surroundings, including a storage unit (7) and a satellite signal receiver (8), characterized in that, The satellite signal receiver (8), preferably separately from the storage unit (7), is arranged in front of the front fork (2), preferably arranged substantially centrally on the upper side of the mudguard (4).

36. Use of the data detection unit (5) according to claim 20 in a vehicle, in particular in a vehicle (1) according to one of claims 1 to 19.

37. A method for operating the data detection unit (5) according to claim 20 in a vehicle, wherein, The satellite signal receiver (8) is arranged spatially separated from the storage unit (7) on the vehicle (1) and is arranged in front of the front fork (2), preferably arranged substantially centrally on the upper side of the mudguard (4).

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