Furniture drive for driving movable furniture part

Abstract

The invention relates to a furniture drive (1) for driving a movable furniture part (101), comprising: at least one electric motor (2); at least one actuator (3), preferably movable back and forth between two end positions, for exerting a force on the furniture part (101) to be driven; and a transmission (4) connected between the electric motors (2) and the actuator (3), at least one of the electric motors (2) having a maximum diameter of less than 18 mm, preferably less than 16 mm.

Description

Technical Field

[0001] The invention relates to a furniture drive device for driving a movable furniture part, the furniture drive device comprising at least one electric motor, at least one actuator for exerting a force on the furniture part to be driven, and a transmission device connected between the electric motor and the actuator, the actuator preferably being able to reciprocate between two end positions. The invention also relates to a piece of furniture comprising at least one movable furniture part, preferably in the form of a flap that can be opened upwards, and at least one such furniture drive device. Background Art

[0002] Such furniture drives with electric motors are already known from the prior art. They enable, for example, the automatic opening of furniture parts. Typically, servomotors are used for this. The furniture drives are relatively large in design and, in the case of flap fittings, are attached to the flap fitting from the outside.

[0003] This results in a large space requirement on the one hand and a visually unattractive overall appearance on the other hand. Summary of the invention

[0004] The object of the present invention is to specify a furniture drive which is improved compared to the prior art and a piece of furniture having such an improved furniture drive.

[0005] This object is achieved by the features of independent claims 1 and 17 .

[0006] According to the invention, it is provided that at least one electric motor has a maximum diameter of less than 18 mm, preferably less than 16 mm.

[0007] It is thereby possible to provide a furniture drive device with a small space requirement. In particular, it is possible to arrange such a furniture drive device concealed in a wall of a piece of furniture, thereby resulting in a visually appealing overall appearance of the furniture.

[0008] In the piece of furniture according to the invention, at least one such furniture drive is provided, wherein a furniture part is movably mounted on the piece of furniture via the at least one furniture drive.

[0009] Further advantageous embodiments of the invention are defined in the dependent claims.

[0010] Preferably, it can be provided that at least one electric motor is designed as an external rotor motor or a disk motor.

[0011] By using these motor types, the overall size of the electric motor can be reduced in a simple manner.

[0012] It can also be provided that a planetary gear is connected between the at least one electric motor and the gear.

[0013] The rotational speed of the electric motor can thereby be adapted to the respective furniture drive.

[0014] Preferably, it can be provided here that the planetary gear and the at least one electric motor essentially form a structural unit.

[0015] Furthermore, it can preferably be provided that the planetary gear has a maximum diameter of less than 18 mm, preferably less than 16 mm.

[0016] Finally, it can be particularly preferred if the maximum diameter of the planetary gear essentially corresponds to the maximum diameter of the at least one electric motor.

[0017] This ensures that the planetary gear does not increase the space requirement of the furniture drive and that the smallest possible overall dimensions of the electric motor and the planetary gear can be achieved.

[0018] In one embodiment it can be provided that the furniture drive comprises at least one housing.

[0019] The housing can serve, on the one hand, to protect the furniture drive and, on the other hand, to accommodate components of the furniture drive.

[0020] It may be provided that the housing has at least one recess for accommodating at least one electric motor.

[0021] The electric motor can thereby be mounted in a simple manner.

[0022] It can preferably be provided that the housing has a maximum width of less than 18 mm, preferably less than 16 mm.

[0023] It can particularly preferably be provided that the maximum diameter of the at least one electric motor corresponds essentially to the maximum width of the housing.

[0024] It can thus be ensured that the electric motor does not require more space than the housing. This also allows the overall space requirement of the furniture drive to be kept small.

[0025] It has proven to be advantageous if the furniture drive has at least one bearing device, via which the at least one electric motor is supported in and / or on the housing, wherein the at least one bearing device comprises at least one damping element made of a sound-damping material.

[0026] Excessive acoustic loading can thereby be avoided during operation of the electric motor. Thus, in particular furniture walls or furniture do not act as resonance bodies.

[0027] It can be provided that the gearbox has at least one crown gearbox, bevel gearbox and / or worm gearbox.

[0028] The rotational movement of the electric motor can thereby be converted accordingly.

[0029] In one exemplary embodiment, it can be provided that the transmission comprises between 3 and 9 transmission stages, preferably 6 transmission stages.

[0030] Preferably, at least one transmission device can be provided, with which the gear mechanism is connected to at least one actuator, wherein the transmission device preferably comprises at least one rod.

[0031] Furthermore, it can be provided that at least one electric motor and a transmission are arranged in a first housing and the actuator is arranged in a second housing structurally separate from the first housing, preferably wherein the two housings are arranged substantially one above the other in a common plane in the coupled state.

[0032] As a result, the furniture drive can be designed to save as much space as possible. In particular, the furniture drive can also be arranged in a simple manner in a wall of a piece of furniture.

[0033] Advantageously, it is also conceivable that

[0034] - at least one lever assembly is provided, via which the actuator is connected to the housing in a pivotable manner, and / or

[0035] at least one mechanical force accumulator is provided, with which a force for compensating the weight of the furniture part to be driven can be applied to the actuator, and / or

[0036] In the first end position, the actuator is arranged substantially completely in the housing.

[0037] With respect to the piece of furniture according to the invention, it can be provided that the piece of furniture comprises at least one wall, wherein the housing of at least one furniture drive is substantially completely inserted into a recess in the wall.

[0038] The furniture can thus be realized in a space-saving and visually appealing way. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Further details and advantages of the present invention are explained in more detail below according to the description of the drawings made with reference to the accompanying drawings.

[0040] Figure 1 A schematic diagram of the furniture is shown,

[0041] Figure 2 A schematic diagram showing a piece of furniture in an exploded view of its parts,

[0042] Figure 3 shows a schematic side view of a furniture drive,

[0043] Figure 4a A schematic diagram showing a part of a furniture drive device,

[0044] Figure 4b Shows Figure 4a An exploded view of

[0045] Figure 5 A schematic sectional view of a part of a furniture drive is shown. DETAILED DESCRIPTION

[0046] Figure 1 The schematic diagram of a piece of furniture 100 is shown. The piece of furniture here comprises a body consisting of two furniture walls 102, a rear wall 103, a lower base 105 and an upper base 104. Furthermore, a movable furniture part 101 can be seen, which is connected to the furniture body via a furniture drive 1, 1a so that it can be pivoted about a horizontal axis H.

[0047] Figure 2 The exploded view of the parts shows the Figure 1 furniture.

[0048] The first housing 5a and the second housing 5b of the furniture drive 1 can be seen, wherein the housings 5a, 5b preferably have a maximum width B of less than 18 mm, preferably less than 16 mm.

[0049] In the housing 5b (which is Figure 2 An electric motor 2 is arranged in the housing 5a (shown only schematically). In particular, an actuator 3 connected or connectable to the furniture part 101 is arranged pivotably on the housing 5a.

[0050] Not all furniture drives 1 have to be equipped with an electric drive unit. In the presented case, only one of the furniture drives 1 has an electric drive unit.

[0051] Alternative designs of furniture are conceivable in which the furniture drive device 1 according to the invention is used.

[0052] Figure 3 A schematic side view of the furniture drive 1 is shown. The housing 5 is divided into a first housing 5a and a second housing 5b, wherein parts of the housings 5a, 5b are not shown in order to better illustrate the furniture drive 1.

[0053] The furniture drive 1 has at least one electric motor 2, at least one actuator 3 which is preferably movable back and forth between two end positions and a transmission 4 connected between the electric motor 2 and the actuator 3 for exerting a force on the furniture part 101 to be driven.

[0054] Furthermore, a planetary gear 2a is connected between the transmission 4 and the electric motor 2. It can be seen that the electric motor 2 and the planetary gear 2a essentially form a structural unit and have the same diameter.

[0055] As in the presented case, the electric motor 2 and the transmission 4 can be arranged in a second housing 5b, and the actuator 3 can be arranged in a first housing 5a which is structurally separated from the second housing 5b, preferably wherein the two housings 5a, 5b are arranged essentially one above the other in a common plane in the coupled state.

[0056] At least one transmission device 7 is provided, by means of which the gear mechanism 4 is connected to the actuator 3 , wherein the transmission device 7 comprises at least one rod 7 a .

[0057] Alternative embodiments of the transmission device 7 are also conceivable. In particular, the transmission device 7 is coupled to the gear mechanism 4 via a non-circular part 10 .

[0058] At least one lever assembly 8 is provided, via which the actuator 3 is connected to the housing 5a in a pivotable manner. In the specific case, the lever assembly 8 is configured as a 7-joint assembly.

[0059] At least one mechanical force accumulator 9 is provided, with which a force for compensating the weight of the furniture part 101 to be driven can be exerted on the actuator 3. The mechanical force accumulator 9 can have one or more compression springs 9a.

[0060] In order to transmit the force stored in the mechanical force accumulator 9 to the actuator 3 , a force transmission rod 9 b may be provided.

[0061] Furthermore, a force adjustment device 9 c can be provided, which can preferably be actuated from the end side of the first housing 5 a and by means of which the spring prestressing of the spring 9 c can be adjusted.

[0062] In a first end position, which corresponds to the closed position of the furniture part 101 , the actuator 3 is arranged substantially completely in the first housing 5 a .

[0063] The transmission 4 comprises a plurality of transmission stages, into which an overload clutch and / or an overrunning clutch may also be integrated. The transmission stages may be realized by gears 4a of different sizes.

[0064] In the present exemplary embodiment, the electric motor 2 is connected to the transmission via a crown gear 4b with a planetary gear 2a interposed therebetween. However, any other suitable connection is also conceivable, for example via a bevel gear or a worm gear.

[0065] Figure 4aA schematic diagram showing a part of a furniture drive device 1 is shown, Figure 4b Shows Figure 4a Exploded diagram of .

[0066] It can be seen that the transmission 4 is arranged on the housing 5b. This makes it possible to achieve a design of the furniture drive 1 that saves as much space as possible.

[0067] Furthermore, the recess 5 c in the housing 5 b can be seen, in which the electric motor 2 is mounted.

[0068] like Figure 5 As the sectional view in FIG. 1 also illustrates, the arrangement and dimensioning of the electric motor makes it possible to realize a narrow furniture drive.

[0069] It can be seen in particular that the maximum diameter D of the electric motor 2 corresponds essentially to the maximum width B of the second housing 5 b.

[0070] In accordance with Figures 4a to 5 In an alternative embodiment, no planetary gear 2 a is connected between the electric motor 2 and the transmission 4 .

[0071] List of reference numerals:

[0072] 1 Furniture drive

[0073] 2 Electric motor

[0074] 2a Planetary gear transmission

[0075] 3 Actuator

[0076] 4 Transmission

[0077] 4a Gear

[0078] 4b Crown gear transmission

[0079] 5 Housing

[0080] 5a First shell

[0081] 5b Second shell

[0082] 6 Support equipment

[0083] 7 Delivery equipment

[0084] 7a Rod

[0085] 8-Rod Assembly

[0086] 9 Accumulator

[0087] 9a Spring

[0088] 9b Force transmission rod

[0089] 9c Force adjustment equipment

[0090] 10 Non-circular parts

[0091] 100 Furniture

[0092] 101 Movable furniture parts

[0093] 102 Furniture Wall

[0094] 102a recess

[0095] 103 Back Wall

[0096] 104 Upper bottom

[0097] 105 bottom

[0098] B Width

[0099] H Horizontal axis

Claims

1. A furniture driving device (1) for driving a movable furniture component (101), comprising: - at least one electric motor (2), at least one actuator (3) for exerting a force on the furniture part (101) to be driven, said actuator preferably being movable back and forth between two end positions, and - a transmission device (4) connected between the electric motor (2) and the actuator (3), Characterized in that the at least one electric motor (2) has a maximum diameter of less than 18 mm, preferably less than 16 mm.

2. The furniture drive device according to claim 1, wherein: The at least one electric motor (2) is designed as an external rotor motor or a disk motor.

3. The furniture drive device according to claim 1 or 2, wherein: A planetary gear transmission (2a) is connected between the at least one electric motor (2) and the transmission (4).

4. The furniture drive device according to claim 3, wherein: The planetary gear (2a) and the at least one electric motor (2) essentially form a structural unit.

5. The furniture drive device according to claim 3 or 4, wherein: The planetary gear (2a) has a maximum diameter of less than 18 mm, preferably less than 16 mm.

6. The furniture drive device according to any one of claims 3 to 5, wherein: The maximum diameter of the planetary gear (2a) corresponds essentially to the maximum diameter of the at least one electric motor (2).

7. The furniture drive device according to any one of claims 1 to 6, wherein: The furniture drive device (1) comprises at least one housing (5).

8. The furniture drive device according to claim 7, wherein: The housing (5) has at least one recess (5c) for accommodating the at least one electric motor (2).

9. The furniture drive device according to claim 7 or 8, wherein: The housing (5) has a maximum width of less than 18 mm, preferably less than 16 mm.

10. The furniture drive device according to any one of claims 7 to 9, wherein: The maximum diameter of the at least one electric motor (2) corresponds substantially to the maximum width of the housing (5).

11. The furniture drive device according to any one of claims 7 to 10, wherein: The furniture drive (1) has at least one bearing device (6), via which the at least one electric motor (2) is supported in the housing (5) and / or on the housing (5), wherein the at least one bearing device (6) comprises at least one buffer element made of a sound-absorbing material.

12. The furniture drive device according to any one of claims 1 to 11, wherein: The transmission (4) has at least one crown gear, bevel gear and / or worm gear.

13. The furniture drive device according to any one of claims 1 to 12, wherein: The transmission (4) comprises between 3 and 9 transmission stages, preferably 6 transmission stages.

14. The furniture drive device according to any one of claims 1 to 13, wherein: At least one transmission device (7) is provided, by means of which the transmission device (4) is connected to the at least one actuator (3), wherein the transmission device (7) preferably comprises at least one rod (7a), a toothed portion and an element and / or a belt cooperating with the toothed portion.

15. The furniture drive device according to any one of claims 1 to 14, wherein: The at least one electric motor (2) and the transmission device (4) are arranged in a first housing (5a), and the actuator (3) is arranged in a second housing (5b) which is structurally separated from the first housing (5a), preferably wherein: In the coupled state, the two housings (5a, 5b) are arranged one above the other essentially in a common plane.

16. The furniture drive device according to any one of claims 1 to 15, wherein - at least one rod assembly (8) is provided, via which the actuator (3) is connected to the housing (5) in a pivotable manner, and / or - at least one mechanical force accumulator (9) is provided, by means of which a force for compensating for the weight of the furniture part (101) to be driven can be applied to the actuator (3), and / or In the first end position, the actuator (3) is arranged substantially completely in the housing (5).

17. A piece of furniture (100), preferably a top cabinet, comprising at least one movable furniture component (101) and at least one furniture drive device (1) according to any of the preceding claims, the furniture component preferably being in the form of a flap that can be opened upwards, wherein the furniture component (101) is supported on the furniture (100) in a movable manner via the at least one furniture drive device (1).

18. The piece of furniture according to claim 17, wherein The piece of furniture (100) comprises at least one wall (102), wherein a housing (5) of the at least one furniture drive (1) is substantially completely inserted into a recess (102a) in the wall (102).

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