Furniture drive device for moving a furniture part movably supported relative to a furniture cabinet

Abstract

A furniture drive device (4) for moving a furniture part (3) movably supported relative to a furniture cabinet (2), comprising: an adjusting device (19) having at least one adjusting element (19a) rotatably supported; a transmission mechanism (35) for transmitting the force of the adjusting element (19a); at least one overload protection device (33), which, when the adjusting element (19a) is rotated with a torque below a predetermined limit torque, connects the adjusting element (19a) to the transmission mechanism (35), and when the adjusting element (19a) is rotated with a torque exceeding the limit torque, separates the adjusting element (19a) from the transmission mechanism (35), preferably thereby preventing torque transmission between the adjusting element (19a) and the transmission mechanism (35), the overload protection device (33) having a first component (37a) having a longitudinal direction (L3) and at least one second component (37b), the second component being movable relative to the first component (37a) in a direction (X) transverse to the longitudinal direction (L3) of the first component (37a) under a torque exceeding the limit torque.

Description

Technical Field

[0001] The present invention relates to a furniture drive device for moving a furniture part movably supported relative to a furniture cabinet, - an adjusting device having at least one adjusting element rotatably supported, - a transmission mechanism for transmitting the force of the adjusting element, - at least one overload protection device, which connects the adjusting element to the transmission mechanism when the adjusting element is rotated with a torque below a predetermined limit torque, and separates the adjusting element from the transmission mechanism when the adjusting element is rotated with a torque exceeding the limit torque, preferably thereby preventing torque transmission between the adjusting element and the transmission mechanism, the overload protection device and relates to a furniture drive device including the same.

[0002] Furthermore, the present invention relates to a furniture including a furniture cabinet, a furniture part movably supported relative to the furniture cabinet, and a furniture drive device of the described type.

[0003] Austrian Patent Application Publication No. 524391 discloses a furniture drive device comprising an actuating arm assembly for moving a movable furniture part and an adjusting device for adjusting the force on the actuating arm assembly. The adjusting device includes a rotatable adjusting element, and the force of the spring device on the actuating arm assembly is adjustable by rotation of the adjusting element. The furniture drive device further includes an overload protection device which disengages the adjusting element from the transmission mechanism when the adjusting element is rotated with a torque exceeding a predetermined limit torque. Such an overload protection device is particularly useful when the adjusting element is driven with a high torque by a rotary tool in the form of a rechargeable driver. The overload protection device has a rotatable shaft with a first tooth row which is pressed axially of the shaft against a corresponding second tooth row of the adjusting element by the force of a spring element. The disadvantage in this case is that both tooth rows can be manufactured relatively complexly. For a long service life of the function of the overload protection device, it is desirable that the tooth rows are made of metal which has to be milled and hardened. Furthermore, only very small tolerances are allowed for the two cooperating tooth rows, and thus these tooth rows have to be manufactured extremely precisely. This of course also leads to an increase in costs in mass production of the furniture drive device.

[0004] A furniture drive device with an overload protection device is also disclosed in European Patent Application Publication No. 3708753 and International Publication No. 2020 / 232483.

[0005] International Publication No. 2020 / 232485 discloses a furniture drive device for moving a movably supported furniture flap, in which case the casing of the furniture drive device is incorporable into a furniture panel of a furniture cabinet.

[0006] The object of the present invention is to provide a furniture drive device of the type described at the beginning which avoids the disadvantages mentioned above.

[0007] According to the present invention, this problem is solved by the features of claim 1. Further advantageous embodiments of the present invention are defined in the dependent claims.

[0008] According to the present invention, the overload protection device has a first component having a longitudinal direction and at least one second component, and the second component is assumed to be movable relative to the first component in a direction transverse to the longitudinal direction of the first component under a torque exceeding the limit torque.

[0009] In other words, the overload protection device has at least two components movable relative to each other, and these components are connected to each other in a first operating position, and torque transmission is performed between these components.

[0010] When the adjusting element is rotated by a torque exceeding the limit torque, the second component can move to a second operating position in a direction transverse (i.e., radial) to the longitudinal direction of the first component, and in the second operating position, the two components are separated from each other so that torque transmission is not performed. This has the advantage that the two components of the overload protection device do not need to be pressed against each other axially by a spring element. Instead, the second component is displaced radially relative to the longitudinal axis of the first component in case of overload.

[0011] It is assumed that the first component and the second component may be formed as separate components from each other or may be integrally formed together. Preferably, it is assumed that the first component and the second component may be connected to each other via at least one film hinge.

[0012] According to an embodiment, it is assumed that at least one holding element may be provided for holding the first component and the second component in a relative connection position under a torque less than the limit torque.

[0013] According to another embodiment, at least one retaining element may be assumed to include at least one spring element that loads a second component with a force in the direction of the first component.

[0014] The furniture drive can also be used to drive a movable furniture part, in particular a door, a flap, or a drawer, or to drive other movable elements, such as a window.

[0015] Further details and advantages of the present invention will be explained with reference to the following description of the drawings.

Brief Description of the Drawings

[0016]

Figure 1a

Figure 1b

Figure 2a

Figure 2b

Figure 3a

Figure 3b

Figure 4a

Figure 4b

Figure 5a

Figure 5b

Figure 5c

Figure 5d

Figure 6a

Figure 6b

Figure 6c

[0017] Figure 1a shows a perspective view of furniture 1, which has a furniture cabinet 2, a furniture part 3 movably supported relative to the furniture cabinet 2, and at least one furniture drive device 4 for moving the movable furniture part 3. The furniture 1 has furniture panels 6 in the form of side walls, an upper surface 7, and a lower surface 8. In the illustrated embodiment, the furniture part 3 is formed as a furniture flap 3a that can be lifted relative to the furniture cabinet 2.

[0018] In the illustrated embodiment, the furniture drive device 4 is at least partially, preferably substantially completely, incorporated into the furniture panel 6 of the furniture cabinet 2. Of course, the furniture drive device 4 can also be arranged outside the wall thickness of the furniture panel 6.

[0019] The movable furniture part 3 is movably supported between a closed position that shields the furniture cabinet 2 and an open position that is lifted relative to the furniture cabinet 2.

[0020] Of course, the furniture drive device 4 can also be incorporated into a horizontally extending furniture panel, that is, for example, in the upper surface 7, in the lower surface 8, and / or in a shelf panel arranged between the upper surface 7 and the lower surface 8. In such a case, the movable furniture part 3 is rotatably supported relative to the furniture cabinet 2 about an axis extending vertically in the assembled position.

[0021] The furniture drive device 4 has an actuating arm assembly 5 for moving the movable furniture part 3 and at least one spring device 10 (Figure 1b) for loading the actuating arm assembly 5 with force.

[0022] Figure 1b shows the furniture 1 in an exploded view, in which case two furniture drive devices 4, preferably identically formed, are provided for moving the movable furniture part 3. Each furniture drive device 4 has a respective casing 9 to be attached to the furniture cabinet 2.

[0023] According to an embodiment, it may be assumed that the casing 9 is received inside the recess 11 of the side wall formed as the furniture panel 6, at least in a predetermined area and preferably substantially completely, in the assembled state. The casing 9 may be substantially flush with the end face 6a of the furniture panel 6 in the assembled state.

[0024] The recess 11 is formed, for example, as a pocket hole, and the casing 9 can be inserted into the pocket-shaped recess 11 of the furniture panel 6 from the front side (i.e., starting from the narrow end face 6a of the furniture panel 6) during assembly.

[0025] A cover 12 is provided in the front end region of the casing 9, and at least one of the movably supported actuating arms 5a, 5b, 5c, 5d, 5e (FIG. 2a) of the actuating arm assembly 5 can be guided through the cover 12 in a relative position.

[0026] Figure 2a shows the furniture drive device 4 in a perspective view. The casing 9 has at least one casing wall 9a formed in a planar shape and capable of abutting against the furniture cabinet 2. A pivotable support portion 14 is provided on the casing wall 9a, and this support portion is pivotably supported about a stationary joint axis 13 in the casing 9. The spring device 10 can be supported on the stationary joint axis 13, i.e., in a first end region. The spring device 10 may include at least one coil spring, preferably at least one compression spring, or alternatively a gas compression spring.

[0027] The furniture drive device 4 has, for example, a transmission mechanism 35 that can be provided for transmitting force from the spring device 10 to the actuating arm assembly 5.

[0028] In the illustrated embodiment, the second end region of the spring device 10 acts on the pressing member 20, and the pressing member is pivotally connected to an intermediate lever 16 that is preferably pivotable about a stationary joint axis 15 via an adjustable point of action 18.

[0029] The force of the spring device 10 on the actuating arm assembly 5 can be adjusted by the adjusting device 19. The adjusting device 19 has an adjusting element 19a that is rotatable about a rotation axis R, and the position of the point of action 18 of the spring device 10 can be adjusted relative to the actuating arm assembly 5, preferably along the threaded section 17, by rotation of the adjusting element 19a about the rotation axis R.

[0030] The threaded section 17 has a longitudinal direction L. The angle formed between the longitudinal direction L of the threaded section 17 and the rotation axis R of the adjusting element 19a can be changed during the movement of the actuating arm assembly 5. The angularly movable connecting device 25 can transmit the rotational movement of the adjusting element 19a to the threaded section 17, whereby the threaded section 17 is rotated, and thereby the point of action 18 is moved along the threaded section 17.

[0031] The angularly movable connecting device 25 may have at least one elastic member, preferably a bellows, a rubber molded element, a coil spring coupling, and / or at least one transmission device, preferably a bevel gear transmission, and / or a joint, preferably a universal joint or a cardan joint. Since the components of the furniture drive device 4 can be arranged so as to overlap each other inside and outside by the angularly movable connecting device 25, a particularly compact arrangement is possible.

[0032] Preferably, it is assumed that the adjusting element 19a of the adjusting device 19 faces the movable furniture part 3 in the assembled state of the furniture drive device 4 and is arranged in the region of the front side of the casing 9. Thereby, the adjusting element 19a can be easily operated from the front side by a tool.

[0033] In the illustrated embodiment, at least one shaft 28 for driving the threaded section 17, which can be driven by the adjusting element 19a, is provided, and the at least one shaft 28 is supported so as to be slidable relative to the casing 9 in a guide 30, preferably in a slot, or along a guide 30, preferably a slot. Thereby, the compensation movement of the components of the furniture drive device 4 caused by the angularly movable coupling device 25 can be at least partially offset.

[0034] The shaft 28 is arranged in or on the support device 29, the guide 30 is arranged on the support device 29, and the pin 32 fixedly supported on the casing 9 engages with the guide 30 of the support device 29. During the compensation movement, the support device 29 is movable relative to the stationary pin 32.

[0035] The actuating arm assembly 5 includes at least one actuating arm 5a, 5b, 5c, 5d, 5e, preferably a plurality of actuating arms 5a, 5b, 5c, 5d, 5e, for moving the movable furniture part 3. A fitting member 21 is attached to the movable furniture part 3, and in this case, the fitting member 21 has at least one or a plurality of attachment points 22 and can be removably locked to the actuating arm 5e of the actuating arm assembly 5. Fig. 2a shows the locked state between the actuating arm 5e and the fitting member 21.

[0036] A cover 12 is provided at the front end of the casing wall 9a, and this cover has at least one flange 12a protruding laterally. In the illustrated embodiment, the flange 12a is substantially ring-shaped and forms an axial stop for the casing 9 that can abut against the end face 6a of the furniture board 6.

[0037] Figure 2b shows the furniture drive 4 of Figure 2a, in which case the casing 9 is closed by a second casing wall 9b. The first casing wall 9a and the second casing wall 9b are each formed in a planar manner so as to be applied to the furniture cabinet 2, and together form a substantially cuboid-shaped casing 9. The casing walls 9a, 9b are spaced apart and parallel to each other, and in this case, a front opening 23 is formed between the casing walls 9a, 9b.

[0038] The cover 12 is arranged in the region of this opening 23, enabling the passage of tools for operating the adjusting device 19.

[0039] Figure 3a shows the furniture drive 4 provided with the casing 9 in a side view. The threaded section 17 is arranged on the intermediate lever 16, and this intermediate lever is pivotably supported about a joint axis 15 fixedly arranged on the casing 9. In the illustrated drawing, since the acting point 18 of the spring device 10 is located in the region adjacent to the joint axis 15 of the intermediate lever 16, the spring device 10 applies a minimum torque to the actuating arm assembly 5. The virtual connection line between the joint axis 15 of the intermediate lever 16 and the acting point 18 of the spring device 10 forms a relatively short lever arm, whereby a minimum torque acts on the actuating arm assembly 5.

[0040] The axis of rotation R of the adjusting element 19a of the adjusting device 19 and the longitudinal direction L of the threaded section 17 form an angle with each other, and this angle can be changed during the movement of the actuating arm assembly 5. In the illustrated closed position of the furniture drive device 4, - based on the angularly movable arrangement of the axis of rotation R and the longitudinal direction L - the actuating arms 5a to 5e of the actuating arm assembly 5, together with the spring device 10 and the adjusting device 19, occupy a very compact position relative to each other. Thus, the advantages of this structure can be clearly understood based on FIG. 3a.

[0041] The adjusting element 19a and the rotatable threaded section 17 are supported so as to be angularly movable relative to each other during the movement of the actuating arm assembly 5. As a result, the adjusting device 19 for adjusting the force of the spring device 10 and the actuating arm assembly 5 can occupy different positions relative to each other. The components of the furniture drive device 4 can thus be arranged so as to overlap each other inside and outside, and can therefore be arranged closely to each other. Thereby, the furniture drive device 4 can be configured more compactly, the adjustment distance of the spring device 10 in the threaded section 17 can be increased, and a higher output range of the furniture drive device 4 can be covered.

[0042] The casing 9 may be substantially rectangular in shape, and preferably, the ratio of the length L1 of the casing 9 to the height H1 of the casing 9 is assumed to be greater than 1:0.7, preferably greater than 1:0.5. With such a dimension setting, the height H1 of the casing 9 can be reduced. Thereby, the height of the recess 11 (FIG. 1b) of the furniture board 6 can also be set small, the labor for manufacturing the recess 11 is slight, and the weakening of the furniture board 6 is also small.

[0043] FIG. 3b shows the furniture drive device 4 of FIG. 3a in which the force adjustment of the spring device 10 is at a minimum, and the actuating arm assembly 5 provided with the actuating arms 5a to 5e is in the open position. It can be seen that the angle formed between the axis of rotation R of the adjusting element 19a and the longitudinal direction L of the threaded section 17 is smaller than that in the closed position shown in FIG. 3a.

[0044] The actuating arm assembly 5 has a first actuating arm 5a that can pivot about a first joint axis 26 and at least one second actuating arm 5b that is pivotally supported about a second joint axis 27. The first joint axis 26 and the second joint axis 27 are spaced apart from each other in the longitudinal direction L2 of the casing 9, and the second joint axis 27 is arranged in the front region of the casing 9 relative to the first joint axis 26.

[0045] The intermediate lever 16 is directly connected to the second (front) actuating arm 5b via a thrust lever 24 preferably formed in an arc shape. That is, the first actuating arm 5a is not directly connected to the thrust lever 24 via a joint axis, but is slidably guided inside the thrust lever 24. This is well shown in Fig. 2a. This enables an improved direct introduction of force from the spring device 10 into the actuating arm assembly 5.

[0046] Fig. 4a shows an adjusting device 19, which comprises a rotatable adjusting element 19a and an overload protection device 33. The overload protection device 33 is formed such that when the adjusting element 19a is rotated with a torque less than a predetermined limit torque, the adjusting element 19a is connected to a transmission mechanism 35. When the adjusting element 19a is rotated with a torque exceeding the limit torque, the adjusting element 19a can be separated from the transmission mechanism 35 by the overload protection device 33.

[0047] The adjusting element 19a can be driven by a rotary tool 36, for example a rechargeable driver. The rotational movement of the adjusting element 19a can be transmitted to a shaft 28, and in this case, the threaded section 17 can be rotationally moved via an angularly movable connecting device 25. Thereby, the acting point 18 of the spring device 10 is movable along the threaded section 17. In the illustrated embodiment, the threaded section 17 is supported by an intermediate lever 16 that can pivot about a joint axis 15.

[0048] Figure 4b shows the view according to Figure 4a, in which case the casing part is not shown and thus the overload protection device 33 is shown in more detail. The overload protection device 33 has a first component 37a having a longitudinal direction L3 and a second component 37b, and these components are movable relative to each other between a connected position and a separated position.

[0049] When the adjusting element 19a is rotated by a torque less than a predetermined limit torque, this adjusting element 19a is connected to the transmission mechanism 35.

[0050] When the adjusting element 19a is rotated above the limit torque, the adjusting element 19a can be separated from the transmission mechanism 35 by the second component 37b being movable relative to the first component 37a in a direction X that is at least transverse to the longitudinal direction L3 of the first component 37a.

[0051] According to a possible embodiment, the first component 37a and / or the second component 37b - are formed substantially cylindrically at least in a predetermined section and / or - together form one substantially cylindrical shape and / or - are formed from plastic and / or - are manufactured by an injection molding method may be assumed.

[0052] Both components 37a, 37b may be formed as separate components 37a, 37b from each other. According to an alternative embodiment, both components 37a, 37b may be connected to each other via at least one film hinge 39.

[0053] In the illustrated embodiment, at least one holding element 38 is provided for holding the first component 37a and the second component 37b in a connected position relative to each other under a torque less than the limit torque.

[0054] At least one retaining element 38 can include at least one spring element 38a that loads the second component 37b with a force in the direction of the first component 37a. Preferably, this spring element 38a is - formed in a ring shape at least in a predetermined section and / or - formed as an O-ring and / or - formed in a hollow cylindrical shape at least in a predetermined section and / or - has a width of 0.1 mm to 3.0 mm, preferably 2.0 mm, and / or - has a wall thickness of 0.1 mm to 2.0 mm, preferably 1.0 mm, and / or - has an outer diameter of less than 8.0 mm, suitably less than 7.5 mm, particularly preferably 7.0 mm or less, and / or - is made of plastic, preferably POM and / or TPU, and / or - is manufactured by an injection molding method, and / or - is radially extensible at least in a predetermined section, preferably elastically.

[0055] In the illustrated embodiment, the first component 37a of the overload protection device 33 is integrally formed with the shaft 28. However, the component 37a and the shaft 28 may be formed as separate components from each other.

[0056] The adjusting element 19a of the adjusting device 19 can be integrally formed with at least one of the components 37a, 37b, preferably both components 37a, 37b. Thus, the arrangement of the adjusting element 19a separate from the components 37a, 37b can be omitted. However, of course, the adjusting element 19a can also be provided separately from the components 37a, 37b.

[0057] According to an embodiment, the retaining element 38 is supported so as to be slidable relative to the first component 37a and / or the second component 37b in the longitudinal direction L3 of the first component 37a at least in a predetermined section, and preferably in this case, it is assumed that the limit torque can be adjusted by the sliding of the retaining element 38.

[0058] According to an embodiment, it may be assumed that the limit torque is between 0.5 Nm and 4.0 Nm, preferably between 0.8 Nm and 1.2 Nm.

[0059] Figs. 5a to 5d show the overload protection device 33 from various viewpoints.

[0060] Fig. 5a shows a perspective view of both components 37a, 37b of the overload protection device 33, in which case the rotary tool 36 is introduced into both components 37a, 37b. By the rotation of the rotary tool 36, at least one of the two components 37a, 37b can be driven.

[0061] The first component 37a may be integrally formed with the shaft 28. Alternatively, the first component 37a and the shaft 28 can also be formed as separate elements from each other.

[0062] The first component 37a may have at least one tooth row 41, and by this tooth row, the rotational movement of the first component 37a can be transmitted to another component of the transmission mechanism 35 of the furniture drive device 4.

[0063] The first component 37a and the second component 37b may be formed as separate components 37a, 37b from each other. Alternatively, both components 37a, 37b can also be integrally formed together.

[0064] For example, it may be assumed that the first component 37a and the second component 37b are connected to each other via at least one film hinge 39.

[0065] The retaining element 38 enables the two components 37a, 37b to be held in a relative connection position under a torque below the limit torque, at which position the torque can be transmitted to the shaft 28.

[0066] The adjusting element 19a of the adjusting device 19 may have at least one operating contour 40, and preferably in this case, the operating contour 40 - has a hex lobe profile at least in a predetermined section and / or - has a diameter of 3.86 mm or less and / or - is arranged only on the first component 37a and / or - is arranged on the first component 37a in at least a predetermined area and on the second component 37b in at least a predetermined area and / or - is arranged on the end face of the adjusting element.

[0067] FIG. 5b shows a cross-sectional view of an embodiment of the overload protection device 33 according to FIG. 5a. The rotary tool 36 introduced into the two components 37a, 37b can be recognized, and in this case, only the first component 37a has the operating contour 40 for the rotary tool 36. In contrast, the second component 37b has a circular inner contour 42. Therefore, the rotation of the rotary tool 36 is transmitted only to the first component 37a. Thereby, a smaller torque can be transmitted, so that the limit torque of the overload protection device 33 can be reduced for various applications.

[0068] FIG. 5c shows an example of the overload protection device 33, in which case the retaining element 38 is located at a rear end position relative to the two components 37a, 37b.

[0069] The retaining element 38 can be slidably applied relative to the first component 37a and / or the second component 37b by means of at least one operating device 43. Thereby, the limit torque of the overload protection device 33 is adjusted.

[0070] According to a possible embodiment of the present invention, - at least one operating device 43 is operable parallel and / or transversely to the longitudinal direction L3 of the first component 37a, and / or - the furniture drive device 4 has a casing 9, the overload protection device 33 is arranged within the casing 9, and the retaining element 38 is operable from outside the casing 9 via the operating device 43 may be assumed.

[0071] Preferably, when the furniture drive device 4 is arranged on or within the furniture panel 6, it may be assumed that the retaining element 38 is directly accessible via the operating device 43 for manual operation from the end face of the furniture panel 6.

[0072] The operating device 43 can have, for example, an operating element that is slidable and / or rotatable for adjusting the position of the retaining element 38. The operating element of the operating device 43 may be arranged, for example, on the casing 9 of the furniture drive device 4, preferably on the front end face of the casing 9.

[0073] FIG. 5d shows an embodiment of the overload protection device 33 according to FIG. 5c, in which case the retaining element 38, preferably in the form of a spring element 38a, is located in a front end position relative to both components 37a, 37b. In the position of FIG. 5d, a higher torque can be transmitted as compared directly with FIG. 5c.

[0074] FIG. 6a shows a perspective view of the overload protection device 33 in the disengaged position, in which case the transmission of torque is interrupted. The rotary tool 36 introduced into both components 37a, 37b can be recognized, in which case this rotary tool 36 is rotated with a torque exceeding a predetermined limit torque.

[0075] In this case, the rotary tool 36 has slipped off the operating contour 40 of the first component 37a, and the protrusion of the rotary tool 36 no longer engages with the corresponding recess of the operating contour 40. After the holding force defined by the holding element 38 is released, the second component 37b is lifted from the first component 37a in the direction X, whereby the transmission of torque can be interrupted.

[0076] The first component 37a and the second component 37b are arranged relative to each other in a connected position under a torque below the limit torque and in a separated position under a torque exceeding the limit torque. In the separated position, the two components 37a, 37b are spaced apart from each other in a direction X transverse to the longitudinal direction L3 of the first component 37a by a greater distance than in the connected position.

[0077] Figure 6b shows the overload protection device 33 according to Figure 6a in a sectional view. It can be recognized from the drawing that the second component 37b has been moved relative to the first component 37a in a direction X transverse to the longitudinal direction L3 of the first component 37a while forming a gap by the amount of the difference value ΔX in a state where the allowable limit torque has been exceeded, and the rotary tool 36 no longer engages with the operating contour 40 of the first component 37a.

[0078] Figure 6c shows the overload protection device 33 in an exploded view. The first component 37a can have at least one notch 44, and the second component 37b can be arranged in at least a predetermined section within this notch. However, the arrangement of the film hinge 39 for pivotally connecting the two components 37a, 37b can basically be omitted.

[0079] At least one stopper element 45 for restricting the movement of the holding element 38 in the longitudinal direction L3 of the first component 37a can be arranged on the first component 37a and / or the second component 37b.

Claims

1. A furniture drive device (4) for moving a furniture part (3) movably supported relative to a furniture cabinet (2), comprising: - An adjusting device (19) having at least one adjusting element (19a) rotatably supported; - A transmission mechanism (35) for transmitting the force of the adjusting element (19a); - At least one overload protection device (33), which, when the adjusting element (19a) is rotated with a torque less than a predetermined limit torque, connects the adjusting element (19a) to the transmission mechanism (35), and when the adjusting element (19a) is rotated with a torque exceeding the limit torque, separates the adjusting element (19a) from the transmission mechanism (35), preferably thereby preventing torque transmission between the adjusting element (19a) and the transmission mechanism (35). In a furniture drive device (4) comprising the above, the overload protection device (33) has a first component (37a) having a longitudinal direction (L3) and at least one second component (37b), and the second component is movable relative to the first component (37a) in a direction (X) transverse to the longitudinal direction (L3) of the first component (37a) under a torque exceeding the limit torque. A furniture drive device (4), characterized in that.

2. The first component (37a) and / or the second component (37b) are - Substantially cylindrical in shape at least in a predetermined section, and / or - Together form a substantially cylindrical shape, and / or - Formed from plastic, and / or - Manufactured by injection molding. The furniture drive device (4) according to Claim 1.

3. The first component (37a) has at least one notch (44), and the second component (37b) can be arranged in the notch at least in a predetermined section. The furniture drive device (4) according to Claim 1 or 2.

4. The first component (37a) and the second component (37b) are formed as separate components (37a, 37b) from each other, or are integrally formed together. Preferably in this case, the first component (37a) and the second component (37b) are connected to each other via at least one film hinge (39). The furniture drive device (4) according to any one of claims 1 to 3.

5. At least one holding element (38) is provided for holding the first component (37a) and the second component (37b) in a relative connection position under a torque less than the limit torque. Preferably in this case, at least one stopper element (45) for restricting the movement of the holding element (38) in the longitudinal direction (L3) of the first component (37a) is arranged on the first component (37a) and / or the second component (37b). The furniture drive device (4) according to any one of claims 1 to 4.

6. The at least one holding element (38) includes at least one spring element (38a) that loads the second component (37b) with a force in the direction of the first component (37a). Preferably, the spring element (38a) is - formed in a ring shape at least in a predetermined section and / or - formed as an O-ring and / or - formed in a hollow cylindrical shape at least in a predetermined section and / or - has a width of 0.1 mm to 3.0 mm, preferably 2.0 mm, and / or - has a wall thickness of 0.1 mm to 2.0 mm, preferably 1.0 mm, and / or - has an outer diameter of less than 8.0 mm, preferably less than 7.5 mm, particularly preferably 7.0 mm or less, and / or - made of plastic, preferably POM and / or TPU, and / or - manufactured by an injection molding method, and / or - is radially extensible, preferably elastically, at least in a predetermined section, The furniture drive device (4) according to claim 5.

7. The at least one retaining element (38) is supported so as to be slidable relative to the first component (37a) and / or the second component (37b) at least in a predetermined section in the longitudinal direction (L3) of the first component (37a), and preferably in this case, the limit torque is adjustable by sliding of the at least one retaining element (38), the furniture drive device (4) according to claim 5 or 6.

8. There is provided at least one operating device (43) capable of sliding the retaining element (38) relative to the first component (37a) and / or the second component (37b), and preferably in this case, - the at least one operating device (43) is operable from a direction parallel and / or transverse to the longitudinal direction (L3) of the first component (37a), and / or - the furniture drive device (4) has a casing (9), the overload protection device (33) is arranged in the casing (9), and the retaining element (38) is operable from outside the casing (9) via the operating device (43). The furniture drive device (4) according to claim 7.

9. The overload protection device (33) is formed such that the limit torque is between 0.5 Nm and 4.0 Nm, preferably between 0.8 Nm and 1.2 Nm, the furniture drive device (4) according to any one of claims 1 to 8.

10. The first component (37a) and the second component (37b) are arranged in a connected position relative to each other under a torque less than the limit torque, and are arranged in a separated position under a torque exceeding the limit torque. In the separated position, the two components (37a, 37b) are separated from each other at a greater interval in a direction (X) transverse to the longitudinal direction (L3) of the first component (37a) than in the connected position, the furniture drive device (4) according to any one of claims 1 to 9.

11. The adjusting element (19a) is integrally formed with the first component (37a) and / or the second component (37b), or the adjusting element (19a) and the two components (37a, 37b) are formed separately from each other, the furniture drive device (4) according to any one of claims 1 to 10.

12. The adjusting element (19a) has at least one operating contour (40), and preferably in this case, the operating contour (40) is - having a hex lobe profile at least in a predetermined section, and / or - having a diameter of 3.86 mm or less, and / or - arranged only on the first component (37a), and / or - arranged on the first component (37a) at least in a predetermined region and on the second component (37b) at least in a predetermined region, and / or - arranged on the end face of the adjusting element (19a), The furniture drive device (4) according to any one of claims 1 to 11.

13. The furniture drive device (4) - has an actuating arm assembly (5) with at least one movably supported actuating arm (5a, 5b, 5c, 5d, 5e) for moving the movable furniture part (3), - has at least one spring device (10) for loading the actuating arm assembly (5), and the spring device (10) is connected to the actuating arm assembly (5) via at least one acting point (18), - by rotation of the adjusting element (19a), the relative position of the at least one acting point (18) with respect to the actuating arm assembly (5) is adjustable, The furniture drive device (4) according to any one of claims 1 to 12.

14. The furniture drive device (4) has at least one threaded section (17) having a longitudinal direction (L), and the acting point (18) of the spring device (10) is adjustable along the threaded section (17) by rotation of the adjusting element (19a) about a rotation axis (R). Preferably in this case, the rotation axis (R) of the adjusting element (19a) and the longitudinal direction (L) of the threaded section (17) are angled with respect to each other, and the angle formed by the rotation axis (R) of the adjusting element (19a) and the longitudinal direction (L) of the threaded section (17) can be changed by at least one connecting device (25) that moves angularly during the movement of the actuating arm assembly (5). The furniture drive device (4) according to claim 13.

15. A piece of furniture (1) comprising a furniture cabinet (2), a furniture part (3) movably supported relative to the furniture cabinet (2), and at least one furniture drive device (4) according to any one of claims 1 to 14 for moving the movable furniture part (3), wherein preferably in this case, the furniture cabinet (2) has a furniture panel (6) for attaching a casing (9), and the casing (9) of the furniture drive device (4) is received inside a recess (11) of the furniture panel (6) at least in a predetermined region, preferably substantially completely.

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