Furniture drive

Abstract

A furniture drive (4) for moving a movably mounted furniture part (3), comprising: - a support (9) for fastening to a furniture carcass (2), - at least one actuating arm (5) which is rotatable about at least one first axis of rotation (7a) and which serves for moving the movably mounted furniture part (3) relative to the support (9), - an interface (21) for fastening a synchronizing shaft (6), wherein the synchronizing shaft (6) allows a rotational movement of the at least one actuating arm (5) to be synchronized with a rotational movement of at least one actuating arm (5) of at least one further furniture drive (4), - wherein the interface (21) has at least one component (11) which is rotatable about a second axis of rotation (7b), wherein the second axis of rotation (7b) is arranged so as to be laterally offset from the first axis of rotation (7a) of the actuating arm (5), wherein the support (9) has at least one upper side (31) which, with the furniture drive (4) in a mounted state on the furniture carcass (2), faces an upper panel (2a) of the furniture carcass (2), wherein the first axis of rotation (7a) has a greater normal distance from the at least one upper side (31) than the second axis of rotation (7b).

Description

[0001] The invention relates to a furniture drive for moving a movably mounted furniture part, comprising: a support for fastening to a furniture body, at least one actuating arm rotatable about at least a first axis of rotation for moving the movably mounted furniture part relative to the support, an interface for fastening a synchronization shaft, wherein a rotational movement of the at least one actuating arm can be synchronized with a rotational movement of at least one actuating arm of at least one further furniture drive by means of the synchronization shaft, wherein the interface has at least one component rotatable about a second axis of rotation, wherein the second axis of rotation is arranged laterally offset to the first axis of rotation of the actuating arm.

[0002] Furthermore, the invention relates to an arrangement with two furniture drives of the type to be described, wherein the first furniture drive is to be fastened to a first side wall of a furniture body and the second furniture drive is to be fastened to a second side wall of the furniture body opposite the first side wall, wherein a rotary movement of the at least one actuating arm of the first furniture drive can be synchronized with a rotary movement of the at least one actuating arm of the second furniture drive by means of the synchronization shaft.

[0003] WO 2006 / 113953 A1 shows a piece of furniture with a furniture body, wherein two furniture drives are attached to opposite side walls of the furniture body. The furniture drives each have a rotatable part, which can be connected in a movement-coupled manner to an actuating arm for moving a furniture flap. A synchronization rod can be used to synchronize the rotational movement of the rotatable parts of the furniture drives with one another, so that the furniture flap can be raised and lowered evenly and without jamming by the two furniture drives. The synchronization rod can be connected to the rotatable parts even if the two furniture drives are already pre-assembled on the furniture body. A disadvantage of this design is that the synchronization rod, when assembled, can hinder the storage and removal of stored items in and out of the furniture body.In addition, the synchronization rod, when mounted, is located adjacent to one end of the furniture body, which can also be visually disturbing.

[0004] CN 106639718 A shows a piece of furniture with a furniture flap that can be driven relative to the furniture body by two furniture drives arranged on the furniture body. The furniture drives each have a pivoting actuating arm for moving the furniture flap. A synchronization rod is provided to synchronize a pivoting movement of the two actuating arms, wherein the synchronization rod, in an assembled state, is connected to a rotatable synchronization element of the furniture drives. The axis of rotation of the synchronization rod is arranged laterally offset from the axes of rotation of the actuating arms. A disadvantage of this design is that the synchronization rod, in an assembled state, significantly hinders the stowing and removal of stored items in or from the furniture body.

[0005] Further examples of furniture drives with a synchronization rod are known from AT 508 959 A1 and DE 11 2009 000548 B4.

[0006] The object of the present invention is to provide a furniture drive of the type mentioned at the outset while avoiding the disadvantages discussed above.

[0007] This is achieved according to the invention by the features of patent claim 1. Further advantageous embodiments of the present invention are defined in the dependent claims.

[0008] According to the invention, it is provided that the carrier has at least one upper side which, in a mounted state of the furniture drive on the furniture body, faces an upper floor of the furniture body, wherein the first axis of rotation has a greater normal distance from the at least one upper side than the second axis of rotation.

[0009] In other words, the first axis of rotation of the actuating arm and the second axis of rotation of the rotatable component to be connected to the synchronization shaft are arranged offset from one another.

[0010] This results in several design advantages. When the furniture drive is mounted on the furniture body, the rotating component can be positioned as high as possible within the furniture body, while the synchronization shaft coupled to the rotating component hardly interferes with the storage and removal of stored items.

[0011] It can be provided that the support has at least one end face through which the at least one actuating arm projects at least partially, at least in a relative position which corresponds to an open position of the movable furniture part, wherein the first axis of rotation has a smaller normal distance from the at least one end face than the second axis of rotation.

[0012] Furthermore, it can be provided that the rotatable component is arranged in an assembled state of the furniture drive on the furniture body at a point as low as possible in a direction of the depth of the furniture body, wherein the synchronization shaft coupled to the rotatable component is hardly visible from an optical point of view - also due to a shadow caused by the furniture body.

[0013] According to the invention, at least one coupling device is provided, by means of which a rotational movement of the at least one actuating arm can be coupled to a rotational movement of the at least one component of the interface. The coupling device comprises interacting gears. Additionally, the coupling device can also comprise at least one cable pull.

[0014] The at least one coupling device has at least one toothing, wherein the at least one toothing can have at least one tooth segment.

[0015] Further details and advantages of the present invention will become apparent from the following description of the figures. Fig. 1a, 1b show a piece of furniture with a movable furniture part and with two furniture drives for moving the furniture part, as well as the furniture with the furniture part removed, Fig. 2a-2c show the assembly of a synchronization shaft on the rotatable component of the furniture drive, Fig. 3a, 3b show the synchronization shaft in an exploded view and in an assembled state, Fig. 4a, 4b show the furniture drive in a side view and an enlarged detailed view thereof, Fig. 5a, 5b show the rotatable component of the interface in a perspective view and the interacting gears in an exploded view, Fig. 6a, 6b show the actuating arm to be connected to the support in a detached state and in a connected state with the support.

[0016] Fig. 1a shows a piece of furniture 1 with a furniture body 2 and with a movable furniture part 3 in the form of a furniture flap 3a that can be lifted relative to the furniture body 2. A furniture drive 4 for moving the movable furniture part 3 is attached to opposite side walls of the furniture body 2. The furniture drives 4 each have a rotatably mounted actuating arm 5, wherein a rotary movement of the two actuating arms 5 of the furniture drives 4 can be synchronized with one another by a synchronization shaft 6.

[0017] Fig. 1b shows the furniture 1 according to Fig. 1a with furniture part 3 removed. The two furniture drives 4 can be constructed identically, so that the explanations given here are valid for both furniture drives 4.

[0018] The furniture drive 4 has a preferably substantially cuboid-shaped support 9, which is to be attached to the furniture body 2 and on which at least one lever 5a of the actuating arm 5 is pivotably mounted about a first rotational axis 7a. The synchronization shaft 6, on the other hand, is rotatably mounted about a second rotational axis 7b, wherein the first rotational axis 7a of the lever 5a and the second rotational axis 7b of the synchronization shaft 6 are laterally offset from one another, preferably spaced parallel to one another.

[0019] The offset arrangement between the first rotational axis 7a of the lever 5a of the actuating arm 5 and the second rotational axis 7b of the synchronization shaft 6 has the particular advantage that the synchronization shaft 6 can be arranged, for example, at a high point in the furniture body 2, ie close to a top panel 2a of the furniture body 2.

[0020] Furthermore, it can be provided that the second rotation axis 7b can be arranged deeper in a direction of the depth of the furniture body 2 in an assembled state of the furniture drive 4 than would be the case with a coaxial arrangement between the first rotation axis 7a and the second rotation axis 7b as known from the prior art.

[0021] The lever 5a of the actuating arm 5 has a fitting part 8, which can be detachably connected to a fitting body (not shown) to be attached to the furniture part 3. The fitting part 8 can be pivotally connected to the lever 5a of the actuating arm 5 and can be designed such that the fitting part 8 can be connected to the fitting body to be attached to the furniture part 3 without the need for tools.

[0022] Fig. 2a-2c show the assembly of the synchronization shaft 6 on the furniture drive 4. The actuating arm 5 can have several levers 5a, 5b connected to one another in an articulated manner, preferably wherein at least two of the provided levers 5a, 5b of the actuating arm 5 are arranged nested with respect to one another in at least one rotational position, preferably in every rotational position, of the actuating arm 5, so that the two levers 5a, 5b are designed to be substantially gap-free with respect to one another in a plan view from the side, and / or at least one lever 5b is U-shaped in cross-section and a further lever 5a is or can be arranged at least in sections between the vertical webs of the U-shape, and / or the actuating arm 5 is designed to be symmetrical with respect to an imaginary central plane, and / or at least one, preferably at least two, of the levers 5a, 5b of the actuating arm 5 can be detachably connected to the support 9 of the furniture drive 4.

[0023] In the embodiment shown, the first lever 5a is pivotally mounted about a first axis of rotation 7a and the other lever 5b is pivotally mounted about a further axis of rotation 10.

[0024] The carrier 9 has at least one upper side 31, which in a mounted state of the furniture drive 4 on the furniture body 4 faces the upper floor 2a of the furniture body 2, wherein the first axis of rotation 7a has a greater normal distance to the at least one upper side 31 than the second axis of rotation 7b ( Fig. 1b ).

[0025] The furniture drive 4 comprises an interface 21 for fastening the synchronization shaft 6, by means of which a rotational movement of the at least one actuating arm 5 can be synchronized with a rotational movement of at least one actuating arm 5 of at least one further furniture drive 4.

[0026] The interface 21 comprises a component 11 that is rotatably mounted about the second rotational axis 7b and detachably connectable to the synchronization shaft 6. It can be seen that the first rotational axis 7a of the lever 5a and the second rotational axis 7b of the component 11 are spaced parallel to each other.

[0027] The component 11, which can be rotated about the second rotational axis 7b, has a receiving device 11a for receiving the synchronization shaft 6. Preferably, the receiving device 11a has a non-circular cross-section for receiving the synchronization shaft 6. Particularly preferably, the synchronization shaft 6 can be connected to the receiving device 11a only in a single rotational position within a rotational angle range of 360°.

[0028] The synchronization shaft 6 has a shaft journal 6a, the outer contour of which essentially corresponds to an inner contour of the receiving device 11a. In this way, a positive connection for transmitting torque can be established between the rotatable component 11 and the synchronization shaft 6.

[0029] Starting from Fig. 2a the shaft journal 6a of the synchronization shaft 6 is inserted into the receiving device 11a of the rotatable component 11 ( Fig. 2b ). Subsequently, a cover 6b, which is movable in the direction of the longitudinal axis (L), is inserted into the receiving device 11a, whereby the shaft journal 6a can be covered ( Fig. 2c ).

[0030] The first furniture drive 4 is attached to a first side wall of the furniture body 2 and the second furniture drive 4 is attached to a second side wall of the furniture body 2 opposite the first side wall.

[0031] In an assembled state, the synchronization shaft 6 is connected in a rotationally fixed manner to the two rotatably mounted components 11 of the furniture drives 4, wherein a rotational movement of the at least one actuating arm 5 of the first furniture drive 4 can be synchronized with a rotational movement of the at least one actuating arm 5 of the second furniture drive 4 by the synchronization shaft 6.

[0032] Fig. 3a shows the synchronization shaft 6 in an exploded view. The synchronization shaft 6 comprises a central shaft section 6g, which may have a non-rotationally symmetrical cross-section.

[0033] A connecting part 6f is connectable to a first end region of the shaft piece 6g, wherein the connecting part 6f is designed to receive a spring element 6d. The shaft journal 6a is formed on a part 6c that can be acted upon by the spring element 6d. In an assembled state of the synchronization shaft 6, the shaft journal 6a is pressed against the rotatable component 11 by the spring element 6d.

[0034] A limiting element 6e prevents the part 6c from detaching from the connecting part 6f. At least the shaft journal 6a can be covered by a preferably sleeve-shaped cover 6b.

[0035] Preferably, no spring element 6d is present at the second end region of the synchronization shaft 6. Here, a connecting part 6h provides a positive connection for the rotationally fixed connection of the synchronization shaft 6 to the rotatable component 11 of the opposite furniture drive 4, as well as a movable cover 6i.

[0036] Fig. 3b shows the synchronization shaft 6 in an assembled state.

[0037] Fig. 4a shows the furniture drive 4 in a side view. The furniture drive 4 has at least one energy accumulator 12, preferably mounted on the support 9, preferably with at least one spring element 12a, via which the actuating arm 5 (not shown here) can be subjected to a force in order to compensate for the weight of the furniture part 3 to be attached to the actuating arm 5.

[0038] A force that can be stored in the energy storage device 12 can be transferred to the actuating arm 5 by means of a transmission mechanism 17, preferably wherein the transmission mechanism 17 comprises at least one intermediate lever 13 which can be pivoted about an axis of rotation 13a, preferably wherein the at least one energy accumulator 12 is connected to the at least one intermediate lever 13 via a preferably adjustable point of engagement 14, and / or at least one pressure piece 15, preferably a rotatable pressure roller, and at least one adjusting contour 16, on which the at least one pressure piece 15 can be displaceably supported during a movement of the adjusting arm 5, preferably wherein the at least one pressure piece 15 is arranged or can be arranged on at least one intermediate lever 13 of the transmission mechanism 17 and the at least one adjusting contour 16 is arranged or can be arranged on the adjusting arm 5, or vice versa.

[0039] The interface 21 has the component 11 which is rotatable about the rotation axis 7b and which is provided with a receiving device 11a for releasably receiving the synchronization shaft 6.

[0040] The furniture drive 4 has at least one coupling device 18, by means of which a rotational movement of the at least one actuating arm 5 can be coupled to a rotational movement of the at least one component 11 of the interface 21. It can be seen that the rotational axis 7a of the actuating arm 5 and the rotational axis 7b of the rotatable component 11 are arranged offset from one another.

[0041] According to one embodiment, it can be provided that the at least one coupling device 18 has a non-circular gear.

[0042] According to the invention, the coupling device 18 has at least one toothing 19, 20, wherein preferably the at least one toothing 19, 20 has at least one tooth segment 19a, 20a ( Fig. 5a, Fig. 5b ).

[0043] Fig. 4b shows the Fig. 4a framed area in an enlarged view, in which the coupling device 18 for coupling between the actuating arm 5 and the rotatable component 11 is shown in more detail.

[0044] Fig. 5a shows the interface 21 for the detachable fastening of the synchronization shaft 6.

[0045] According to one embodiment, it can be provided that the at least one toothing 19, 20 has at least two tooth segments 19a, 20a, wherein one of the two tooth segments 19a is connected or connectable to the at least one actuating arm 5 and the other of the two tooth segments 20a is connected or connectable to the interface 21, and / or at least two tooth segments 19a, 20a are arranged in layers adjacent to one another in the direction of the first or second axis of rotation 7a, 7b.

[0046] In the figure shown, the at least two tooth segments 19a, 20a are arranged in layers adjacent to one another in the direction of the first or second rotational axis 7a, 7b, wherein one of the at least two tooth segments 19a, 20a consists of a first material and the other of the tooth segments 19a, 20a consists of a second material which has a lower hardness than the first material, preferably wherein the first material is steel and / or the second material is plastic.

[0047] According to a preferred embodiment of the invention, it can be provided that at least two tooth segments 20a, 20b are arranged in layers adjacent to one another in the direction of the first or second axis of rotation 7a, 7b, wherein one of the at least two tooth segments 20a, 20b protrudes in a radial direction beyond the other of the tooth segments 20a with respect to the first or second axis of rotation 7a, 7b.

[0048] In other words, in Fig. 5a At least one central toothed segment 20a, preferably made of elastic plastic, is received between two outer toothed segments 20a, preferably made of steel, wherein the central toothed segment 20a protrudes in a radial direction beyond the two outer toothed segments 20a. In this way, the play occurring between the toothings 19, 20 of the coupling device 18 can be reduced and the synchronization between the two rotatable components 11 of the furniture drives 4 can be significantly improved.

[0049] Fig. 5b shows an exploded view of the interacting gears 19, 20.

[0050] The toothing 20 is arranged on the rotational axis 7b of the rotatable component 11 and comprises a plurality of adjacent tooth segments 20a. The tooth segments 20a are essentially disc-shaped and are mounted on the rotational axis 7b of the component 11 via spacers 22.

[0051] The other toothing 19, however, is arranged on the first axis of rotation 7a of the actuating arm 5.

[0052] According to one embodiment, it can be provided that the at least one toothing 19 has at least one tooth segment 19a, wherein at least one prestressing element 23 is provided, by means of which at least one tooth segment 19a can be urged in a radial direction relative to the first or second axis of rotation 7a, 7b, preferably wherein the at least one prestressing element 23 is elastically flexible or designed as a mechanical spring element, and / or the at least one prestressing element 23 is substantially annular, and / or the at least one prestressing element 23 is mounted on the first or second axis of rotation 7a, 7b, and / or at least one guide 26 is provided, wherein the at least one toothed segment 19a is mounted so as to be movable, preferably linearly displaceable, along the guide 26.

[0053] In other words, in Fig. 5b At least one central tooth segment 19a or several central tooth segments 19a are received between two outer tooth segments 19a, wherein the central tooth segments 19a are pressed radially outward by the prestressing element 23, so that the central tooth segments 19a protrude slightly beyond the two outer tooth segments 19a in a radial direction. In this way, the play occurring between the toothings 19, 20 of the coupling device 18 can be reduced and the synchronization between the two rotatable components 11 of the two furniture drives 4 can be improved.

[0054] At least one of the outer tooth segments 19a may have a guide 26 for the movable mounting of a central tooth segment 19a.

[0055] For example, it can be provided that the at least one middle tooth segment 19a, 20a protrudes beyond the two outer tooth segments 19a, 20a between 0.01 mm and 0.1 mm, preferably between 0.03 mm and 0.07 mm.

[0056] At least one toothing 19, 20 can have a connecting device 27 for releasably connecting a lever 5a, 5b of the actuating arm 5. The connecting device 27 can, for example, have at least one recess 27a for partially receiving a lever 5a, 5b of the actuating arm 5.

[0057] By means of an unlocking element 24 preloaded by a spring 25, a lever 5a, 5b of the actuating arm 5 can be unlocked from a connected state with the carrier 9, preferably from a connected state with a toothing 19, 20. In this way, the actuating arm 5 can be separated from the carrier 9. By actuating the unlocking element 24 against the force of the spring 25, the locking between the actuating arm 5 and the toothing 19, 20 can be released.

[0058] Fig. 6a shows the lever 5a of the actuating arm 5, which is to be connected to the carrier 9. The toothing 19, preferably the toothed segment 19a, has at least one, preferably funnel-shaped, recess 27a for partially accommodating the lever 5a. It can be seen that a contour of the recess 27a is adapted to a contour of the lever 5a, at least in sections, wherein the lever 5a engages positively in the recess 27a in a connected state.

[0059] The lever 5a is suspended via a first notch 28a on a first locking element arranged on the first pivot axis 7a. When the lever 5a is inserted into the recess 27a, a second locking element 29 is moved along a guide track 30 by the interaction with the lever 5a against a force of the spring 25. A locking element 29a, for example a pin projecting laterally from the lever 5a, is arranged on the lever 5a, wherein the locking element 29a engages in a further recess 29b when the lever 5a is connected. The locking of the lever 5a is established by the locking element 29, which can be snapped into the second notch 28b of the lever 5a by a force of the spring 25 ( Fig. 6b ).

[0060] The three-point locking (notch 28a on the rotation axis 7a, locking element 29a in recess 27b, locking element 29 in notch 28b) enables a particularly tilt-proof connection of the lever 5a in relation to the carrier 9.

[0061] The recess 27a of the toothing 19 can form an insertion funnel for inserting the lever 5a of the actuating arm 5, whereby the lever 5a can be centered in the direction of the rotation axis 7a during assembly.

[0062] To release the locking between the lever 5a and the carrier 9, the unlocking element 24 is moved against a force of the spring 25 until the second locking element 29 can be unlocked from the second notch 28b of the lever 5a.

Claims

1. A furniture drive (4) for moving a movably-supported furniture part (3), comprising: - a carrier (9) configured to be fixed a furniture carcass (2), - at least one actuating arm (5) for moving the movably-supported furniture part (3) relative to the carrier (9), the at least one actuating arm (5) being pivotable about at least one first pivoting axis (7a), - an interface (21) for fixing a synchronization shaft (6), the synchronization shaft (6) being configured to synchronize a pivotal movement of the at least one actuating arm (5) with a pivotal movement of at least one actuating arm (5) of at least one further actuating drive (4), - wherein the interface (21) includes at least one component (11) pivotable about a second pivoting axis (7b), the second pivoting axis (7b) being arranged laterally offset to the first pivoting axis (7a) of the actuating arm (5), - wherein the carrier (9) has at least one upper side (31) which, in a mounted condition of the furniture drive (4) on the furniture carcass (2), faces towards a top panel (2a) of the furniture carcass (2), wherein the first pivoting axis (7a) has a larger perpendicular distance to the at least one upper side (31) than the second pivoting axis (7b), characterized in that - at least one coupling device (18) is provided, the at least one coupling device (18) being configured to couple a pivotal movement of the at least one actuating arm (5) to a pivotal movement of the at least one component (11) of the interface (21), and - the at least one coupling device (18) includes at least one tooth arrangement (19, 20), preferably wherein the at least one tooth arrangement (19, 20) includes at least one tooth segment (19a, 20a).

2. The furniture drive (4) according to claim 1, characterized in that the carrier (9) has at least one front face, and the at least one actuating arm (5), in at least one relative position corresponding to an open position of the movable furniture part (3), at least partially projects through the at least one front face of the carrier (9), wherein the first pivoting axis (7a) has a smaller perpendicular distance to the at least one front face than the second pivoting axis (7b).

3. The furniture drive (4) according to claim 1 or 2, characterized in that the at least one coupling device (18) includes an eccentric transmission.

4. The furniture drive (4) according to one of the claims 1 to 3, characterized in that the at least one tooth arrangement (19, 20) includes at least one tooth segment (19a, 20a), the tooth segment (19a, 20a) having a connection device (27) configured to be releasably connected to a lever (5a, 5b) of the actuating arm (5), preferably wherein the connection device (27) includes at least one recess (27a) for partially receiving a lever (5a, 5b) of the actuating arm (5).

5. The furniture drive (4) according to one of the claims 1 to 4, characterized in that the at least one tooth arrangement (19, 20) includes at least two tooth segments (19a, 20a), wherein - one of the two tooth segments (19a, 20a) is connected or is configured to be connected to the at least one actuating arm (5), and the other of the two tooth segments (19a, 20a) is connected or is configured to be connected to the interface (21), and / or - at least two tooth segments (19a, 20a) bear in layers against one another in a direction extending along the first or second pivoting axis (7a, 7b).

6. The furniture drive (4) according to one of the claims 1 to 5, characterized in that the at least one tooth arrangement (19, 20) includes at least one tooth segment (19a, 20a), wherein at least one pre-stressing element (23) is provided for urging at least one tooth segment (19a, 20a) in a radial direction relative to the first or second pivoting axis (7a, 7b), preferably wherein - the at least one pre-stressing element (23) is elastically resilient or is configured as a mechanical spring element, and / or - the at least one pre-stressing element (23) is substantially ring-shaped, and / or - the at least one pre-stressing element (23) is supported on the first or second pivoting axis (7a, 7b), and / or - at least one guide (26) is provided, wherein the at least one tooth segment (19a, 20a) is movably, preferably linearly displaceably, supported along the guide (26).

7. The furniture drive (4) according to claim 5 or 6, characterized in that at least two tooth segments (19a, 20a) bear in layers against one another in a direction extending in the first or second pivoting axis (7a, 7b), wherein one of the that at least two tooth segments (19a, 20a) consists of a first material and the other of the tooth segments (19a, 20a) consists of a second material, the second material having a lower hardness than the first material, preferably wherein the first material is steel and / or the second material is plastic.

8. The furniture drive (4) according to one of the claims 5 to 7, characterized in that at least two tooth segments (19a, 20a) are arranged in layers bearing against one another in a direction extending in the first or second pivoting axis (7a, 7b), wherein one of the at least two tooth segments (19a, 20a) projects over the other of the tooth segments (19a, 20a) in a radial direction relative to the first or second pivoting axis (7a, 7b).

9. The furniture drive (4) according to one of the claims 1 to 8, characterized in that the component (11) pivotable about the second pivoting axis (7b) includes a receiving device (11a) configured to receive the synchronization shaft (6), preferably wherein the receiving device (11a) includes a non-circular cross-section for receiving the synchronization shaft (6), wherein it is particularly preferred that the synchronization shaft (6) is connectable to the receiving device (11a) only in one single pivoting position within a pivoting angle range of 360°.

10. The furniture drive (4) according to one of the claims 1 to 9, characterized in that the actuating arm (5) includes a plurality of levers (5a, 5b) hingedly connected to one another, preferably wherein - at least two of the provided levers (5a, 5b) of the actuating arm (5), in at least one pivoting position, preferably in each pivoting position, of the actuating arm (5) are nested into one another, so that the two levers (5a, 5b) are arranged substantially in a gap-free manner relative to one another when viewed from the side, and / or - at least one lever (5b) is U-shaped in a cross-section, and a further lever (5a) is at least partially arranged or can be arranged between the vertical limbs of the U-form, and / or - the actuating arm (5) is configured to be symmetrical with respect to a notional middle plane, and / or - at least one, preferably at least two, of the levers (5a, 5b) of the actuating arm (5) is or are configured to be releasably connected to the carrier (9) of the furniture drive (4).

11. The furniture drive (4) according to one of the claims 1 to 10, wherein the furniture drive (4) includes at least one force storage member (12), preferably supported on the carrier (9) and preferably having at least one spring element (12a), the at least one force storage member (12) being configured to pressurize the actuating arm (5) so as to compensate for a weight of the furniture part (3) to be fixed to the actuating arm (5).

12. The furniture drive (4) according to claim 11, wherein a transmission mechanism (17) is provided for transmitting a force that can be stored in the at least one force storage member (12) to the actuating arm (5), preferably wherein the transmission mechanism (17) - includes at least one intermediate lever (13) pivotable about a pivoting axis (13a), preferably wherein the at least one force storage member (12) is connected to the at least one intermediate lever (13) via an, preferably adjustable, engagement location (14), and / or - includes at least one pressure portion (15), preferably a rotatable pressure roller, and at least one setting contour (16) on which the at least one pressure portion (15) can be displaceably supported upon a movement of the actuating arm (5), preferably wherein the at least one pressure portion (15) is arranged on the at least one intermediate lever (13) of the transmission mechanism (17), and the at least one setting contour (16) is arranged or is configured to be arranged on the actuating arm (5), or vice versa.

13. An arrangement comprising a first furniture drive (4) according to one of the claims 1 to 12, a second furniture drive (4) according to one of the claims 1 to 12, and a synchronization shaft (6), wherein the first furniture drive (4) is to be fixed to a first sidewall of the furniture carcass (2) and the second furniture drive (4) is to be fixed to a second sidewall of the furniture carcass (2), the second sidewall of the furniture carcass (2) opposing the first sidewall, wherein the synchronization shaft (6), in a mounted condition, is connected to the two pivotable portions (11) of the furniture drives (4) in a torque-proof manner, wherein a pivotal movement of the at least one actuating arm (5) of the first furniture drive (4) can be synchronized with a pivotal movement of the at least one actuating arm (5) of the second furniture drive (4) via the synchronization shaft (6).

14. The arrangement according to claim 13, characterized in that the synchronization shaft (6), on at least one end portion, includes a resilient portion (6c) configured to bear against the pivotably supported component (11) of a furniture drive (4).

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