Furniture drive device for moving a furniture component movably supported relative to a furniture body

Abstract

Furniture drive device (4) for moving a furniture part (3) movably supported relative to a furniture body (2) comprises a holder (9) for fastening to the furniture body (2), an adjustment arm assembly (5) arranged on the holder (9) and having at least one movably supported adjustment arm (5a, 5b, 5c, 5d, 5e) for moving the movable furniture part (3), a spring device (10) for loading the adjustment arm assembly (5) with a force, the spring device (10) being connected to the adjustment arm assembly (5) via at least one application point (18), a transmission mechanism (35) for transmitting the force from the spring device (10) to the adjustment arm assembly (5), an adjustment device (19) having at least one rotatably supported adjustment element (19a) by means of which the relative position of the at least one application point (18) to the adjustment arm assembly (5) can be adjusted by rotation of the adjustment element (19a), the furniture drive device (4) having at least one overload protection device (33) which couples the adjustment element (19a) to the transmission mechanism (35) when the adjustment element (19a) is rotated with a torque below a predetermined torque and which decouples the adjustment element (19a) from the transmission mechanism (35) when the adjustment element (19a) is rotated with a torque above the predetermined torque.

Description

Technical Field

[0001] The present invention relates to a furniture drive device for moving furniture components that are movably supported relative to the furniture body.

[0002] Furthermore, the present invention relates to a type of furniture having a furniture body, furniture components movably supported relative to the furniture body, and a furniture drive device of the type to be described for moving the movable furniture components. Background Technology

[0003] Such furniture drive devices are typically fixed in or on the side wall of the furniture body, wherein the adjustment arm assembly of the furniture drive device is pre-tensioned by at least one spring device and connected to the movable furniture parts in the assembled state.

[0004] EP 3 708 753 A1 shows a non-type furniture drive device for moving a furniture lid, wherein a helical spring is provided for balancing the weight of the furniture lid. By adjusting the support, the helical spring can be compressed differently, so that the force of the helical spring can be adapted to the different weights of the furniture lid. In addition, the furniture drive device has a torque limiting device to prevent the support from getting stuck on the end stop. The support can be adjusted by rotating the drive element with the aid of a tool. The torque limiting device limits the torque in the first rotational direction of the drive element, so that the support will not get stuck on the end stop. The torque is fully transmitted in the second rotational direction of the drive element.

[0005] CN 106175199 discloses a furniture drive device in which the force of a spring device is transmitted via a double-arm steering lever to an adjusting arm for moving the furniture lid.

[0006] WO 2018 / 192819 A1 discloses a furniture drive device with a pre-processing feature. A rotatable tool holder is provided on the front end region of the housing of the furniture drive device, wherein a spindle nut can move along the spindle by means of the rotation of the tool through the tool holder. A spring assembly is supported on the spindle nut, wherein the force of the spring assembly acting on the adjusting arm assembly can be changed by the adjustable support of the spindle nut along the spindle.

[0007] The force adjustment mechanism of the adjusting spring device on the adjusting arm assembly in furniture drive equipment is usually operated with a rotating tool, such as a screwdriver. What can happen with untrained and / or clumsy assemblers is that the actuating part of the spring device is pressed into its end position by the high torque rotation of the rotating tool and becomes stuck there due to the large force applied. This jamming can often only be removed with difficulty, without preventing damage to components of the furniture drive equipment.

[0008] When adjusting for long travel distances, assemblers often use electric screwdrivers to operate the adjustment mechanism, which increases the risk of damaging the furniture drive system. Summary of the Invention

[0009] The objective of this invention is to provide a furniture drive device of the type mentioned at the beginning, so as to avoid the disadvantages discussed above.

[0010] This is achieved according to the present invention by a furniture drive device for moving furniture components that are movably supported relative to the furniture body.

[0011] The furniture driving device according to the present invention includes:

[0012] - A bracket used to secure the furniture to the main body.

[0013] - An adjusting arm assembly arranged on a bracket, the adjusting arm assembly having at least one movably supported adjusting arm for moving movable furniture parts.

[0014] - A spring device for applying force to the adjusting arm assembly, wherein the spring device is connected to the adjusting arm assembly via at least one actuating portion.

[0015] - A transmission mechanism used to transfer force from the spring device to the adjusting arm assembly.

[0016] - An adjustment device having at least one rotatably supported adjustment element, wherein the at least one actuating part can be adjusted to the relative position of the adjustment arm assembly by rotation of the adjustment element.

[0017] According to the present invention, the furniture drive device has at least one overload protection device that couples the adjusting element to the transmission mechanism when the adjusting element rotates with a torque lower than a predetermined torque, and decouples the adjusting element from the transmission mechanism when the adjusting element rotates with a torque higher than a predetermined torque.

[0018] The proposed overload protection device enables damage-free operation of the regulating device, especially in the event of user error. When the predetermined torque applied to the regulating element is exceeded, the actuating parts of the regulating element and the spring device are decoupled from each other by the overload protection device.

[0019] According to possible embodiments, an overload protection device may be specified.

[0020] - Having at least one spring element, preferably a compression spring, wherein the rotatably supported shaft and adjusting element can be pressed against each other by the force of the spring element, and / or

[0021] - Having at least one tooth, preferably an end tooth, arranged on the adjusting element, and / or

[0022] - A shaft having at least one rotatably supported and driveable by an adjusting element, wherein the adjusting element is coupled to the shaft when rotating with a torque lower than a predetermined torque and decoupled from the shaft when rotating with a torque higher than the predetermined torque, and / or

[0023] - Having at least one rotatable shaft along its length, wherein the shaft can move along its length against the force of the spring element when the adjusting element rotates with a torque higher than a predetermined torque, and / or

[0024] - A rotatable shaft having at least one first tooth that can engage with a second tooth of an adjusting element, and / or

[0025] - Having at least one spring element with an opening, wherein the at least one spring element and an adjusting element are arranged facing each other such that the adjusting element can approach through the opening of the at least one spring element, and / or

[0026] - It has at least one support device, an adjusting element and / or an optional rotatable shaft rotatably supported in or on the support device.

[0027] By using a spring element separate from the spring assembly for applying force to the at least one shaft, a defined release force can be achieved, and thus a defined switching characteristic of the overload protection device can be achieved. Attached Figure Description

[0028] Other details and advantages of the invention will be set forth with reference to the following description of the accompanying drawings.

[0029] Figure 1a , 1b Furniture with movable furniture parts is shown in perspective and exploded view.

[0030] Figure 2a , 2b Two different perspective views of the furniture drive device are shown.

[0031] Figure 3a , 3b The furniture drive device is shown in the closed and open positions.

[0032] Figure 4a , 4b The furniture drive unit is shown in perspective and with magnified details.

[0033] Figures 5a to 5d The adjustment device acting on the point of action is shown in different views, and

[0034] Figure 6a , 6b In a slightly modified embodiment, the adjustment device acting on the actuating part is shown in perspective and with enlarged detail. Detailed Implementation

[0035] Figure 1a A perspective view of furniture 1 is shown, which has a furniture body 2, a furniture component 3 movably supported relative to the furniture body 2, and at least one furniture drive device 4 for moving the movable furniture component 3. Furniture 1 has furniture panels 6 in the form of side walls, a top 7, and a bottom 8. In the illustrated embodiment, furniture component 3 is configured as a furniture flap 3a that can be lifted relative to the furniture body 2.

[0036] In the illustrated embodiment, the furniture drive device 4 is at least partially, and preferably substantially completely, integrated into one of the furniture panels 6 of the furniture body 2. Of course, the furniture drive device 4 can also be arranged outside the wall thickness of the furniture panel 6.

[0037] The movable furniture component 3 is supported in a manner that allows it to move between a closed position that covers the main body of the furniture 2 and an open position that allows it to be lifted relative to the main body of the furniture 2.

[0038] Alternatively, the furniture drive unit 4 can be integrated into the horizontally extending furniture panel, that is, for example, into the top 7, the bottom 8, and / or into a shelf arranged between the top 7 and the bottom 8. In such a case, the movable furniture component 3 is supported in a manner that allows it to pivot relative to the furniture body 2 about an axis that extends vertically in the assembled position.

[0039] The furniture drive device 4 has an adjusting arm assembly 5 for moving the movable furniture part 3 and at least one spring device 10 for applying force to the adjusting arm assembly 5. Figure 1b ).

[0040] Figure 1b The furniture 1 is shown in an exploded view, which includes two furniture drive devices 4, preferably identical in construction, for moving movable furniture parts 3. Each furniture drive device 4 has a bracket 9 to be fixed to the furniture body 2.

[0041] According to one embodiment, the bracket 9, in the assembled state, is at least partially, preferably substantially completely, accommodated within the gap 11 of the sidewall of the furniture panel 6. In the assembled state, the bracket 9 may end substantially flush with the end side 6a of the furniture panel 6.

[0042] The gap 11 is constructed, for example, as a pocket, in which the bracket 9 can be pushed into the pocket-shaped gap 11 of the furniture panel 6 when assembled from the front (i.e., from the narrow end side 6a of the furniture panel 6).

[0043] A cover 12 is provided in the front region of the bracket 9, wherein at least one adjusting arm 5a, 5b, 5c, 5d, 5e is movably supported by the adjusting arm assembly 5. Figure 2a It can be guided through the cover part 12 in a relative position.

[0044] Figure 2a The furniture drive device 4 is shown in perspective, wherein the support 9 has at least one flat housing wall 9a that can abut against the furniture body 2. A pivotable support member 14 is provided on the housing wall 9a, which is supported in a manner that allows it to pivot about a hinge axis 13 fixed in position on the support 9. That is, the spring device 10 is supported on the fixed hinge axis 13 with a first end region. The spring device 10 may include at least one coil spring, preferably at least one compression spring, or alternatively, may include a gas spring.

[0045] The furniture drive device 4 has a transmission mechanism 35 for transmitting force from the spring device 10 to the adjusting arm assembly 5.

[0046] In the illustrated embodiment, the second end region of the spring device 10 acts on the pressure section 20, which is hingedly connected via an adjustable actuating portion 18 to an intermediate lever 16 that can pivot about a hinge axis 15 fixed in a preferred position.

[0047] The force exerted by the spring device 10 on the adjusting arm assembly 5 can be adjusted by the adjusting device 19. The adjusting device 19 includes an adjusting element 19a that can rotate about the rotation axis (R), wherein the position of the actuating part 18 of the spring device 10 relative to the adjusting arm assembly 5 can be adjusted, preferably along the threaded section 17, by the rotation of the adjusting element 19a about the rotation axis (R).

[0048] The threaded section 17 has a length direction (L). The angle formed by the length direction (L) of the threaded section 17 and the rotation axis (R) of the adjusting element 19a can be changed when the adjusting arm assembly 5 moves. The rotational motion of the adjusting element 19a can be transmitted to the threaded section 17 through the angularly movable coupling device 25, so that the threaded section 17 is in rotational motion and the actuating part 18 moves along the threaded section 17.

[0049] The angularly movable coupling device 25 may have at least one elastic element, preferably a bellows, a rubber-molded element, a helical spring coupling, and / or at least one transmission mechanism, preferably a bevel gear transmission mechanism, and / or a hinge joint, preferably a cross hinge joint or a universal hinge joint.

[0050] Preferably, the adjusting element 19a of the adjusting device 19 is arranged to face the movable furniture component 3 in the assembled state of the furniture drive device 4 and in the front region of the support 9. In this way, the adjusting element 19a can be easily operated from the front using a tool.

[0051] In the illustrated embodiment, at least one shaft 28 for driving the threaded section 17 is provided, which can be driven by the adjusting element 19a. This at least one shaft 28 is supported in a manner movable relative to the bracket 9 within the guide portion 30, preferably in the elongated hole, or along the guide portion. In this manner, the balance movement of the components of the furniture drive device 4 caused by the angularly movable coupling device 25 can be at least partially compensated.

[0052] A shaft 28 is arranged in or on a support device 29, wherein a guide portion 30 is arranged on the support device 29 and a pin 32 fixedly supported on a bracket 9 is inserted into the guide portion 30 of the support device 29. During balanced motion, the support device 29 can move relative to the stationary pin 32.

[0053] The adjusting arm assembly 5 includes at least one, preferably multiple, adjusting arms 5a, 5b, 5c, 5d, and 5e for moving the movable furniture part 3. A fitting 21 is secured to the movable furniture part 3, wherein the fitting 21 has at least one or more fixing portions 22 and is detachably lockable to one adjusting arm 5e of the adjusting arm assembly 5. Figure 2a The image shows the locked state between the adjusting arm 5e and the accessory 21.

[0054] A cover portion 12 is provided on the front end of the housing wall 9a, the cover portion having at least one laterally projecting flange 12a. In the illustrated embodiment, the flange 12a is substantially annularly constructed and constitutes a depth stop for the support 9 that can abut against the end side 6a of the furniture panel 6.

[0055] Figure 2b Showing according to Figure 2a The furniture drive device 4 includes a support 9 enclosed by a second housing wall 9b. The first housing wall 9a and the second housing wall 9b are respectively flattened and configured to rest against the furniture body 2, together forming a generally rectangular support 9. The housing walls 9a and 9b are spaced parallel to each other, with a front opening 23 formed between them. A cover 12 is arranged in the area of ​​this opening 23 and allows tools for operating the adjustment device 19 to pass through.

[0056] Figure 3aA furniture drive device 4 with a bracket 9 is shown in a side view. A threaded section 17 is arranged on an intermediate lever 16, which is supported in a manner that allows it to pivot about a hinge axis 15 fixedly arranged on the bracket 9. In the figure shown, the spring device 10 applies a minimum torque to the adjusting arm assembly 5 because the actuating part 18 of the spring device 10 is located in the region adjacent to the hinge axis 15 of the intermediate lever 16. An imaginary connecting line between the hinge axis 15 of the intermediate lever 16 and the actuating part 18 of the spring device 10 forms a relatively short lever arm, thereby applying a minimum torque to the adjusting arm assembly 5.

[0057] The rotation axis (R) of the adjusting element 19a of the adjusting device 19 forms an angle with the length direction (L) of the threaded section 17, and this angle can be changed when the adjusting arm assembly 5 moves. One advantage of this design is that it can be achieved by... Figure 3a It is clear that, because in the closed position shown in the furniture drive device 4—based on the angularly movable arrangement of the rotation axis (R) and the length direction (L)—the adjusting arms 5a-5e of the adjusting arm assembly 5, together with the spring device 10 and the adjusting device 19, occupy a very compact position with each other.

[0058] That is, the adjusting element 19a and the rotatable threaded section 17 can be angularly supported relative to each other when the adjusting arm assembly 5 moves, so that the adjusting device 19 for adjusting the force of the spring device 10 and the adjusting arm assembly 5 can occupy different positions relative to each other. The components of the furniture drive device 4 can thus be nested within each other and therefore arranged more closely together. In this way, the furniture drive device 4 can be constructed compactly, the adjustment stroke of the spring device 10 on the threaded section 17 can be increased, and the higher performance range of the furniture drive device 4 can be covered.

[0059] The support 9 can be constructed substantially rectangularly, wherein preferably, the ratio of the length (L1) to the height (H1) of the support 9 is greater than 1:0.7, preferably greater than 1:0.5. This dimension allows for a reduced height (H1) of the support 9. Consequently, the gap 11 of the furniture board 6 ( Figure 1b The height of the gap 11 can also be determined in a small way, where the manufacturing cost of the gap 11 is small and the thinning of the furniture board 6 is minimal.

[0060] Figure 3b Showing according to Figure 3a The furniture drive device 4 includes a minimum force adjustment via a spring device 10, wherein the adjustment arm assembly 5, with adjustment arms 5a to 5e, is in the open position. It can be seen that the angle formed between the rotation axis (R) of the adjustment element 9 and the length direction (L) of the threaded section 17 relative to each other is... Figure 3a The indicated closing position has become smaller.

[0061] The adjusting arm assembly 5 has a first adjusting arm 5a pivotable about a first hinge axis 26 and at least one second adjusting arm 5b pivotally supported about a second hinge axis 27. The first hinge axis 26 and the second hinge axis 27 are spaced apart from each other in the longitudinal direction (L2) of the bracket 9, wherein the second hinge axis 27 is arranged relative to the first hinge axis 26 in the front region of the bracket 9.

[0062] The intermediate lever 16 is directly connected to the second (front) adjusting arm 5b via a preferred curved push rod 24. That is, the first adjusting arm 5a is not directly connected to the push rod 24 via any hinge axis, but is instead guided in a manner that allows movement within the push rod 24. This is from Figure 2a It can be clearly seen that this method enables improved and direct force input from the spring device 10 to the adjusting arm assembly 5.

[0063] Figure 4a The furniture drive device 4 is shown in perspective view, wherein the furniture drive device 4 includes an overload protection device 33 for limiting the maximum torque between the adjustment element 19a of the adjustment device 19 and the actuating part 19 of the spring device 10.

[0064] The overload protection device 33 is designed such that it couples the adjusting element 19a to the transmission mechanism 35 when the adjusting element 19a rotates with a torque lower than the predetermined torque, and decouples the adjusting element 19a from the transmission mechanism 35 when the adjusting element 19a moves with a torque higher than the predetermined torque.

[0065] In the illustrated embodiment, the overload protection device 33 has at least one spring element 34, for example, a compression spring. The shaft 28 can be pressed against the adjusting element 19a of the adjusting device 19 by the force of the spring element 34. Preferably, the shaft 28 can be pressed against the adjusting element 19a of the adjusting device 19 in the axial direction of the shaft 28 by the force of the spring element 34.

[0066] Preferably, the rotation axis (R) of the adjusting element 19a and the length direction (L3) of the at least one shaft 28 extend coaxially with each other.

[0067] Adjusting element 19a and shaft 28 can be connected via cooperating teeth 37a, 37b ( Figures 5a to 5d The adjusting element 19a and the shaft 28 are rotatably coupled to each other. When the adjusting element 19a rotates with a torque lower than a predetermined torque, the adjusting element 19a is coupled to the shaft 28. When the adjusting element 19a rotates with a torque higher than the predetermined torque, the adjusting element 19a is decoupled from the transmission mechanism 35. That is, the spring element 34 is compressed when the torque applied to the adjusting element 19a is exceeded, wherein the adjusting element 19a and the shaft 28 can be decoupled from each other.

[0068] Figure 4bShown in enlarged diagram Figure 4a The area outlined in the center. The bracket 9 of the furniture drive device 4 can be clamped securely to the gap 11 of the furniture board 6 via a fixing device 31 having at least one rotatable tensioning element 31a. Figure 1b Within.

[0069] Figure 5a A perspective view is shown of an adjusting device 19 for adjusting the position of the actuating part 18 of the spring device 10. The rotatable adjusting element 19a may have a receiving device 39 for tools, particularly screwdrivers. Figure 6b The active part 18 can be adjusted along the threaded section 17 by means of the rotation of the tool via the receiving device 39.

[0070] Adjusting element 19a and / or shaft 28 are rotatably supported on support device 29. Support device 29 has a guide portion 30 as described above, in which pin 32 of bracket 9 can be guided with clearance.

[0071] According to a possible embodiment of the present invention, the overload protection device 33 may be specified.

[0072] - Having at least one spring element 34, preferably a compression spring, wherein the rotatably supported shaft 28 and adjusting element 19a can be pressed against each other by the force of the spring element 34, and / or

[0073] - Having at least one tooth 37a, preferably an end tooth, arranged on the adjusting element 19a, and / or

[0074] - A shaft 28 having at least one rotatably supported and driveable by an adjusting element 19a, wherein the adjusting element 19a is coupled to the shaft 28 when rotating with a torque lower than a predetermined torque and decoupled from the shaft 28 when rotating with a torque higher than the predetermined torque, and / or

[0075] - Having at least one rotatable shaft 28 along its length direction (L3), wherein the shaft 28 is capable of moving against the force of the spring element 34 along its length direction (L3) when the adjusting element 19a rotates with a torque higher than a predetermined torque, and / or

[0076] - A rotatable shaft 28 having at least one first tooth 37b, the first tooth being capable of engaging with a second tooth 37a of an adjusting element 19a, and / or

[0077] - It has at least one support device 29, an adjusting element 19a and / or an optional rotatable shaft 28 rotatably supported in or on the support device.

[0078] Shaft 28 may be coupled to the working part 18, for example, via cooperating teeth 38a, 38b, preferably via a bevel gear transmission mechanism and preferably via a threaded section 17.

[0079] Figure 5b The coupling state between the adjusting element 19a and the shaft 28 is shown, wherein the teeth 37a and 37b that work together are engaged with each other. This is the case when the adjusting element 19a rotates with a torque lower than a predetermined torque.

[0080] Figure 5c The diagram illustrates an overload condition when the adjusting element 19a rotates with a torque exceeding a predetermined torque. When the critical torque is exceeded, the adjusting element 19a and the shaft 28 rotate relative to each other, wherein the adjusting element 19a and the shaft 28 are axially spaced apart by interacting teeth 37a, 37b and the spring element 34 is compressed. In this way, the shaft 28 can be decoupled from the rotational movement of the adjusting element 19a.

[0081] Figure 5d Shown in enlarged diagram Figure 5c The circled area shows that the teeth 37a of the adjusting element 19a and the teeth 37b of the shaft 28 are disengaged from each other. This corresponds to an overload condition, where the rotational movement of the shaft 28 is decoupled from that of the adjusting element 19a.

[0082] Figure 6a In a slightly modified embodiment, an adjusting device 19 is shown acting on the actuating part 18. The adjusting element 19a and the shaft 28 are rotatably housed within the support device 29 and are pressed against each other by the force of a spring element 34 in the form of a pressure spring.

[0083] The spring element 34 forms an opening 34a, wherein the spring element 34 and the adjusting element 19a are arranged facing each other such that the adjusting element 19a can be approached through the opening 34a of the spring element 34.

[0084] When the torque acting on the adjusting element 19a exceeds the torque, the teeth 37a and 37b lift off each other after overcoming the force of the spring element 34, wherein the spring element 34 is compressed. When the adjusting element 19a rotates again with a torque lower than the predetermined torque, the adjusting element 19a is once again rotatably coupled to the shaft 28 by the force of the spring element 34.

[0085] Figure 6b Shown in enlarged diagram Figure 6a The area outlined in the center frame. The adjusting element 19 of the adjusting device 19 has a receiving device 39 for a tool, preferably a screwdriver or an electric screwdriver.

[0086] The receiving device 39 may have a cross-shaped groove (e.g., a star-shaped profile), a square profile, a hexagonal profile, or a hexagonal round head (e.g., a quincunx profile), wherein a reliable shape-locking connection for transmitting torque between the tool and the adjusting element 19a can be established.

[0087] The furniture drive device 4 may have at least one damping device, such as a hydraulic piston-cylinder unit, to dampen the movement of the adjusting arm assembly 5. In this way, the movement of the movable furniture part 3 to its final closed and / or open position can be damped.

Claims

1. A furniture drive device (4) for moving a furniture component (3) movably supported relative to a furniture body (2), comprising: Bracket (9) for fixing to the main body of the furniture (2). An adjusting arm assembly (5) is arranged on the bracket (9), the adjusting arm assembly having at least one movably supported adjusting arm (5a, 5b, 5c, 5d, 5e) for moving the movable furniture part (3). A spring device (10) for applying force to the adjusting arm assembly (5), wherein the spring device (10) is connected to the adjusting arm assembly (5) via at least one actuating part (18). Transmission mechanism (35) for transmitting force from the spring device (10) to the adjusting arm assembly (5). An adjusting device (19) having at least one rotatably supported adjusting element (19a), wherein the relative position of the at least one actuating part (18) to the adjusting arm assembly (5) can be adjusted by rotation of the adjusting element (19a). The furniture drive device (4) is characterized in that it has at least one overload protection device (33), which couples the adjusting element (19a) to the transmission mechanism (35) when the adjusting element (19a) rotates with a torque lower than a predetermined torque, and decouples the adjusting element (19a) from the transmission mechanism (35) when the adjusting element (19a) rotates with a torque higher than a predetermined torque.

2. The furniture drive device (4) according to claim 1, characterized in that The overload protection device (33) has at least one shaft (28) that is rotatably supported.

3. The furniture drive device (4) according to claim 1 or 2, characterized in that, The overload protection device (33) It has at least one tooth arranged on the adjusting element (19a), and / or The at least one spring element (34) has an opening (34a), wherein the at least one spring element (34) and the adjusting element (19a) are arranged facing each other such that the adjusting element (19a) can be approached via the opening (34a) of the at least one spring element (34), and / or It has at least one support device (29), and the adjusting element (19a) and / or an optional rotatable shaft (28) are rotatably supported in or on the at least one support device.

4. The furniture driving device (4) according to claim 1 or 2, characterized in that, The furniture drive device (4) has at least one threaded section (17) with a length direction (L), wherein the actuating part (18) of the spring device (10) can be adjusted along the threaded section (17) by the rotation of the adjusting element (19a) around the rotation axis (R).

5. The furniture driving device (4) according to claim 4, characterized in that, The rotation axis (R) of the adjusting element (19a) and the length direction (L) of the threaded section (17) form an angle with each other, wherein the angle formed by the rotation axis (R) of the adjusting element (19a) and the length direction (L) of the threaded section (17) can be changed when the adjusting arm assembly (5) moves.

6. The furniture driving device (4) according to claim 4, characterized in that, The furniture drive device (4) has at least one angularly movable coupling device (25) for converting the rotational motion of the adjusting element (19a) into the rotational motion of the threaded section (17).

7. The furniture drive device (4) according to claim 6, characterized in that, The angularly movable coupling device (25) has at least one elastic element, and / or at least one transmission mechanism, and / or a hinge joint.

8. The furniture drive device (4) according to claim 1 or 2, characterized in that, The adjusting element (19a) of the adjusting device (19) is arranged to face the movable furniture component (3) in the assembled state of the furniture drive device (4) and in the front region of the bracket (9).

9. The furniture driving device according to claim 1 or 2, characterized in that, The spring device (10) is supported on the bracket (9) with a first end region and on the actuating part (18) with a second end region.

10. The furniture driving device according to claim 1 or 2, characterized in that, The spring device (10) has at least one helical spring.

11. The furniture driving device according to claim 1 or 2, characterized in that, The bracket (9) of the furniture drive device (4) is configured to be at least partially housed within the furniture board (6) when it is already mounted on the furniture board (6).

12. The furniture driving device according to claim 1 or 2, characterized in that, The support (9) is constructed to be substantially rectangular.

13. The furniture driving device according to claim 1 or 2, characterized in that, The actuating part (18) acts on the intermediate lever (16) of the furniture drive device (4) which is pivotally supported on the bracket (9).

14. The furniture driving device according to claim 13, characterized in that, The adjusting arm assembly (5) has a first adjusting arm pivotable about a first hinge axis (26) and at least one second adjusting arm pivotally supported about a second hinge axis (27), wherein the first hinge axis (26) and the second hinge axis (27) are spaced apart from each other in the length direction (L2) of the bracket (9) and the second hinge axis (27) is arranged relative to the first hinge axis (26) in the front region of the bracket (9), wherein the intermediate lever (16) is directly connected to the second adjusting arm via a push rod (24).

15. The furniture driving device according to claim 1 or 2, characterized in that, The adjusting element (19a) of the adjusting device (19) has a receiving device (39) for the tool.

16. The furniture drive device (4) according to claim 1 or 2, characterized in that, The adjusting element (19a) of the adjusting device (19) is arranged to face the movable furniture part (3) in the assembled state of the furniture drive device (4) and in the front region of the bracket (9), wherein the adjusting element (19a) can be easily operated from the front by means of a tool.

17. The furniture drive device (4) according to claim 2, characterized in that, The rotation axis (R) of the adjusting element (19a) and the length direction (L3) of the at least one shaft (28) extend coaxially with each other.

18. The furniture drive device (4) according to claim 2, characterized in that, The overload protection device (33) has at least one spring element (34), wherein the rotatably supported shaft (28) and the adjusting element (19a) can be pressed against each other by the force of the spring element (34), and / or At least one shaft (28) rotatably supported can be driven by the adjusting element (19a), wherein the adjusting element (19a) is coupled to the shaft (28) when the adjusting element (19a) rotates with a torque lower than a predetermined torque and is decoupled from the shaft (28) when the adjusting element (19a) rotates with a torque higher than the predetermined torque, and / or The at least one rotatable shaft (28) has a length direction (L3), wherein the shaft (28) can move in the length direction (L3) of the shaft (28) against the force of the spring element (34) when the adjusting element (19a) rotates with a torque higher than a predetermined torque, and / or The at least one rotatable shaft (28) has a first tooth (37b) that can engage with a second tooth (37a) of the adjusting element (19a).

19. The furniture drive device (4) according to claim 18, characterized in that, The at least one spring element (34) is configured as a pressure spring.

20. The furniture driving device (4) according to claim 3, characterized in that, The at least one tooth is configured as an end tooth.

21. The furniture drive device (4) according to claim 7, characterized in that, The at least one elastic element is constructed as a bellows, a rubber molding element, or a helical spring coupling, and / or the at least one transmission mechanism is constructed as a bevel gear transmission mechanism, and / or the hinge joint is constructed as a cross hinge joint or a universal hinge joint.

22. The furniture driving device according to claim 10, characterized in that, The spring device (10) has at least one pressure spring.

23. The furniture driving device according to claim 11, characterized in that, The bracket (9) of the furniture drive device (4) is configured to be substantially completely contained within the furniture board (6) when it is already mounted on the furniture board (6).

24. The furniture driving device according to claim 12, characterized in that, The ratio of the length (L1) of the bracket (9) to the height (H1) of the bracket (9) is greater than 1 to 0.

7.

25. The furniture driving device according to claim 24, characterized in that, The ratio of the length (L1) of the bracket (9) to the height (H1) of the bracket (9) is greater than 1 to 0.

5.

26. The furniture driving device according to claim 15, characterized in that, The tool is constructed as a screwdriver.

27. A piece of furniture (1) having a furniture body (2), furniture parts (3) movably supported relative to the furniture body (2), and having at least one furniture drive device (4) according to any one of claims 1 to 26 for moving the movable furniture parts (3).

28. The furniture according to claim 27, characterized in that, The furniture body (2) has a furniture board (6) for fixing the bracket (9), wherein the bracket (9) of the furniture drive device (4) is at least partially accommodated within the gap (11) of the furniture board (6).

29. The furniture according to claim 28, characterized in that, The bracket (9) of the furniture drive device (4) is substantially completely housed within the gap (11) of the furniture board (6).

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