Synchronization device for moving movable furniture part

Abstract

The invention relates to a synchronizing device (6) having at least two drives (100, 200) for moving a movable furniture part (3) and having at least one synchronizing bar (5) for synchronizing the movement of the at least two drives (100, 200), wherein a first end region of the synchronizing bar (5) can be connected to a first rotary part (102) of the first drive (100) and a second end region of the synchronizing bar (5) can be connected to a second rotary part (202) of the second drive (200), and wherein at least one length compensation device (9) is provided, in the mounted state of the synchronizing bar (5), a gap between the drive device (100, 200) and the synchronizing bar (5) in the longitudinal direction (L) of the synchronizing bar (5) can be at least partially compensated by means of the length compensation device. Wherein at least one of the drives (100, 200) has a housing (103, 203) and the length compensation device (9) is at least partially integrated into the housing (103, 203) and / or the length compensation device (9) is at least partially integrated into the synchronizing bar (5).

Description

Technical Field

[0001] The invention relates to a synchronizing device with at least two drives for moving movable furniture parts and with at least one synchronizing rod for synchronizing the movement of the at least two drives, wherein a first end region of the synchronizing rod can be connected to a first rotating part of the first drive and a second end region of the synchronizing rod can be connected to a second rotating part of the second drive, wherein at least one length compensation device is provided, by which a play between the drive and the synchronizing rod in the longitudinal direction of the synchronizing rod can be at least partially compensated in the mounted state of the synchronizing rod. Background Art

[0002] WO 2013 / 040611 A1 discloses a synchronization device with a synchronization rod for synchronizing two drive devices. Such a synchronization device has the following purpose: a movable furniture part can be moved relative to a furniture frame. The synchronisation rod can always be guided at a constant distance, in particular even if the movable furniture part is actuated unilaterally by manual force application. The synchronisation rod can also be connected to the two drive devices even if the two drive devices are already pre-mounted on the furniture frame. An essential prerequisite for optimum synchronisation is that the play occurring in the longitudinal direction of the synchronisation rods is compensated. For this purpose, at least one rotating part of the drive device has an elastic contact element that can be placed against the end face of the synchronisation rod, by means of which the longitudinal play can be compensated. A disadvantage of this design is that the drive device with the elastic contact element has a relatively bulky design. Summary of the invention

[0003] The object of the present invention is to provide a synchronization device of the type mentioned at the outset with a compact design.

[0004] This is achieved according to the invention by the features of claim 1. Further advantageous embodiments of the invention are defined in the dependent claims.

[0005] According to the invention, it is provided that at least one of the drive devices has a housing and that the length compensation device is at least partially integrated into the housing and / or that the length compensation device is at least partially integrated into the synchronization rod.

[0006] In other words, in order to compensate for the longitudinal play of the synchronization rod, the length compensation device is integrated into the housing of the drive device and / or into the synchronization rod itself. In this way, the drive device and / or the synchronization rod can be designed more compactly.

[0007] According to a preferred embodiment, it can be arranged that the synchronization rod

[0008] - can be detachably connected to a rotating part of the drive device even when the drive device is already pre-mounted, in particular on a furniture frame, and / or

[0009] - in the connected state is connected in a rotationally fixed manner to a rotating part of the drive, and / or

[0010] - the length compensation device is preloaded between two opposing rotating parts of the two drive devices with a predetermined holding force in the longitudinal direction of the synchronization rod relative to the two rotating parts of the drive devices and is held without play in the longitudinal direction of the synchronization rod between the two rotating parts, and / or

[0011] -Constructed to have immutable length.

[0012] In principle, the synchronization device can be used in any situation in which the rotational movements of the two drives are to be synchronized, for example also for the synchronized triggering of a so-called touch-latch function in order to eject a movable furniture part from a closed end position. This touch-latch function enables the ejection of the movable furniture part by exerting a manual pressure or tensile load on the furniture part in the closed position.

[0013] The synchronization device can be used to synchronize the movement of movable furniture parts, in particular doors, flaps or drawers, or also to synchronize the movement of other movable elements, such as windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Further details and advantages of the invention emerge from the following description of the figures.

[0015] Figure 1a , 1b A perspective view shows a piece of furniture with a movable furniture part in the form of a cover that can be moved upwards, and a synchronizing device that can be mounted on the piece of furniture,

[0016] Figure 2a-2d A perspective view of a synchronization device and various details thereof are shown.

[0017] Figure 3a-3d shows a perspective view and a cross-sectional view of a rotating component with an integrated length compensation device in two different operating positions,

[0018] Figure 4a , 4b A perspective view and a cross-sectional view showing a synchronization rod coupled to a rotating member,

[0019] Figure 5a , 5b A perspective view and a cross-sectional view show an embodiment of a synchronization rod with a partially integrated length compensation device,

[0020] Figure 6a-6e Different views are shown according to Figure 5a-5b Length compensation device,

[0021] Figure 7a-7c Another embodiment of the length compensation device is shown,

[0022] Figure 8a-8c Another embodiment of the length compensation device is shown,

[0023] Figure 9a , 9b The synchronizing rod is shown in a perspective view and the length compensation device is shown in an exploded view, and

[0024] Figure 10a-10c Different views are shown according to Figure 9b Length compensation device,

[0025] Fig.11a , 11b Another embodiment of a length compensation device is shown in two different views,

[0026] Fig.12a , 12b Two different cross-sectional views are shown according to Fig.11a , 11b An embodiment of the length compensation device,

[0027] Fig.13 The exploded diagram shows the Fig.12a , 12b Length compensation device. DETAILED DESCRIPTION

[0028] Figure 1a A piece of furniture 1 is shown with a furniture frame 2 and with a movable furniture part 3 in the form of a cover 3 a which is mounted so as to be movable relative to the furniture frame 2 via two drives 100 , 200 .

[0029] exist Figure 1b The movable furniture part 3 is hidden in the drawing, so that the drive devices 100, 200 mounted on the opposite side walls can be seen. The two drive devices 100, 200 together with the synchronization rod 5 form a synchronization device 6 for moving the movable furniture part 3.

[0030] In the exemplary embodiment shown, the two drive devices 100 , 200 each have at least one setting arm 101 , 201 which is preferably pivotable about a horizontal axis and which can be connected to the movable furniture part 3 .

[0031] The rotating parts 102, 202 are connected to the setting arms 101, 201 in a motion-coupled manner, respectively, wherein the rotating part 102 of the drive device 100 on the left is not connected to the setting arms 101, 201. Figure 1b The synchronization rod 5, which is designed as a torsion axis, is provided for synchronizing the movement of the two drive devices 100, 200 in order to bring about a coupled, synchronous rotational movement of the two rotating parts 102, 202 of the two drive devices 100, 200. It is obviously also possible that the rotating part 102, 202 is formed by one of the setting arms 101, 201.

[0032] It can preferably be provided that the synchronization rod 5 extends essentially in the horizontal direction in the installed state.

[0033] Figure 2a An embodiment of a synchronization device 6 is shown in a perspective view. The drive device 100, 200 has a housing 103, 203 that can be fixed to the furniture frame 2 and at least one rotating part 102, 202 for releasably connecting to the synchronization rod 5. The housing 103, 203 can be formed by at least two housing walls that are at least partially separated from each other. The synchronization rod 5 having a longitudinal direction L is connected to the rotating part 102, 202 of the drive device 100, 200 in a rotationally fixed manner in the connected state, so that when the rotating part 102, 202 moves, the synchronization rod 5 also moves.

[0034] According to one embodiment, it can be provided that at least one of the drive devices 100, 200 has at least one setting arm 101 (rotatable about at least one first rotation axis) Figure 1b ) in order to move the movably mounted furniture part 3 relative to the housing 103 , 203 , wherein the rotating part 102 , 202 of the drive device 100 , 200 is arranged laterally offset relative to the first rotation axis of the setting arm 101 , 201 .

[0035] Figure 2b The enlarged view shows Figure 2a In the illustrated exemplary embodiment, the rotating parts 102 , 202 are each integrated into a housing 103 , 203 , resulting in a very compact design of the drive device 100 , 200 .

[0036] Figure 2c An exemplary embodiment of a rotary part 102 is shown, which is at least partially, preferably substantially completely, integrated in a housing 103 of the drive device 100. The rotary parts 102, 202 each have an interface 10 for detachable fastening of the synchronization rod 5.

[0037] According to a feasible embodiment, it can be configured that at least one of the rotating components 102 and 202

[0038] - at least one toothed ring 7, preferably wherein the toothed ring 7 has at least two toothed segments (Zahnsegment, sometimes called sector teeth) 7a, 7b, 7c, which are arranged to abut against each other layer by layer in the longitudinal direction L of the synchronization rod 5, and / or

[0039] - supported on the shaft 8, wherein the length compensation device 9 is integrated into the shaft 8, and / or

[0040] - integrated into the housing 103, 203 of the drive device 100, 200, and / or

[0041] - at least two components 8a, 8b movable relative to each other in the longitudinal direction L of the synchronization rod 5, preferably wherein the components 8a, 8b are connected by at least one energy storage device 13 ( Figure 2d ) are preloaded relative to each other and / or are capable of telescoping relative to each other.

[0042] According to a possible embodiment, it can be arranged that one of the at least two tooth segments 7a, 7b, 7c is made of a first material and the other of the tooth segments 7a, 7b, 7c is made of a second material having a lower hardness than the first material, preferably wherein the first material is steel and / or the second material is plastic.

[0043] Figure 2d The cross-sectional view shows the Figure 2c 102 of the rotary part. It can be seen that the rotary part 102 has at least two components 8a, 8b which are displaceable relative to each other and which are prestressed relative to each other by a force storage device 13, preferably in the form of a compression spring.

[0044] The component 8b is designed such that it can be connected to the synchronization rod 5 in a form-fitting manner to enable torque transmission between the rotating part 102 and the synchronization rod 5. For this purpose, the rotating parts 102, 202 can each have an interface 10 for releasably coupling the synchronization rod 5.

[0045] According to another embodiment, it can be provided that at least two tooth segments 7a, 7b, 7c are arranged layer by layer in abutment with each other in the direction of the longitudinal axis L of the synchronization rod 5, wherein one tooth segment 7b of the at least two tooth segments 7a, 7b, 7c protrudes in the radial direction beyond the other tooth segment 7a, 7c. In this way, the play that occurs between the rotating part 102, 202 and the transmission element (not shown) meshing with the rotating part 102, 202 can be reduced.

[0046] Figure 3aA perspective view of a rotating part 102 with a length compensation device 9 integrated in the rotating part 102 is shown. A toothed ring 7 with three toothed sections 7a, 7b, 7c lying one above the other can be seen. The two outer toothed sections 7a, 7c can be formed, for example, from metal and the middle toothed section 7b from plastic, wherein the middle toothed section 7b made of plastic protrudes in the radial direction beyond the two outer toothed sections 7a, 7c.

[0047] The rotating part 102 has an interface 10 for being detachably connected to the synchronization rod 5. According to a possible embodiment, it can be provided that the interface 10

[0048] - the synchronization rod 5 is designed in such a way that it can only be connected to the rotating part 102 in a single rotational position within a rotational angle range of 360°, and / or

[0049] - A coupling part 10a having an outer contour different from a circle for positively accommodating the synchronization rod 5, preferably wherein the outer contour has a plurality of protrusions 11a, 11b, 11c, 11d arranged substantially equidistantly in the rotation direction, and at least one flat section 12 or recessed portion arranged instead of the protrusions 11a, 11b, 11c, 11d. This design enables the synchronization rod 5 to be connected to the rotating part 102 only in a single rotational position within a rotational angle range of 360°.

[0050] Figure 3b The cross-sectional view shows the Figure 3a 102 of the rotating part. It can be seen that the components 8a, 8b are prestressed relative to each other by the power storage device 13, wherein the component 8b is in a position extended relative to the other component 8a. Therefore, in this position, the maximum clearance of the synchronization rod 5 relative to the rotating part 102 can be offset.

[0051] Figure 3c The rotating part 102 with the component 8b is shown in a retracted position relative to the other component 8a. Therefore, in this position, the smallest play of the synchronization rod 5 relative to the rotating part 102 can be compensated.

[0052] Figure 3d The cross-sectional view shows the Figure 3c The rotating part 102 is provided.

[0053] Figure 4a A perspective view of a synchronization rod 5 coupled to a rotating part 102 is shown. It can be seen that the projections 11a, 11b of the component 8b designed as an engagement part 10a snap into the end region of the synchronization rod 5 in a form-fitting manner.

[0054] The interface 10 can comprise an outer contour which deviates from a circular shape and a receiving element 21 for receiving the engagement element 10a in a form-fitting manner. In the exemplary embodiment shown, the receiving element 21 is formed by the synchronization rod 5 .

[0055] Figure 4b Shown according to Figure 4a 1 and 2. The synchronization rod 5 can have at least one cavity 23 in at least one of the end regions, wherein the length compensation device 9 is arranged at least in sections in the cavity 23.

[0056] According to one exemplary embodiment, it can be provided that the length compensation device 9 has at least one first force accumulator 13 acting in the longitudinal direction L of the synchronization rod 5 and that the force accumulator 13 is arranged at least partially in the cavity 23 of the synchronization rod 5 .

[0057] The synchronization rod 5 can have a uniform cross section over the entire length and / or can be designed as a hollow profile with a uniform inner diameter over the entire length.

[0058] Figure 5a A perspective view of an exemplary embodiment of a synchronization rod 5 with a partially integrated length compensation device 9 for compensating for longitudinal play occurring in the longitudinal direction L of the synchronization rod 5 is shown.

[0059] According to one embodiment, it can be provided that the length compensation device 9 is arranged on the synchronization rod 5 in only one of the end regions.

[0060] The synchronization rod 5 has a stationary outer contour 13 at a first end region, which has a cross section that deviates from a circular shape and can be connected in a form-fitting manner to one of the rotating parts 102 , 202 of the drive device 100 , 200 .

[0061] The synchronization rod 5 has a length compensation device 9 at the second end region, which has an interface 10 for releasably connecting to the rotating part 102, 202 of the drive device 100, 200. The interface 10 includes a plurality of protrusions 11a, 11b, 11c, 11d arranged substantially equidistantly in the direction of rotation, and at least one flat section 12 or recessed section arranged instead of the protrusions 11a, 11b, 11c, 11d.

[0062] According to one exemplary embodiment, it can be provided that the length compensation device 9 is connected or connectable to the synchronization rod 5 in a frictionally locking manner.

[0063] Figure 5b The cross-sectional view shows the Figure 5a Length compensation device 9.

[0064] The length compensation device 9 has at least one force storage device 13 acting in the longitudinal direction L of the synchronization rod 5 and / or at least one elastic element 16 acting transversely to the longitudinal direction L of the synchronization rod 5, wherein play transversely to the longitudinal direction L of the synchronization rod 5 can be compensated by the elastic element 16. The elastic element 16 can be designed, for example, as a leaf spring.

[0065] The length compensation device 9 can have at least two connecting parts 8c, 8d which are mounted so as to be displaceable relative to one another in the longitudinal direction L of the synchronization rod 5, preferably to a limited extent. The connecting parts 8c, 8d are prestressed relative to one another by a force accumulator 13, for example in the form of a compression spring.

[0066] In this exemplary embodiment, the length compensation device 9 has at least one pivot lever 14 which is mounted so as to be pivotable about a pivot axis 15 transverse to the longitudinal direction L of the synchronization rod 5 between a release position and a locking position.

[0067] The pivot lever 14 has a projection 17 which can be pushed toward the elastic element 16 and thus toward the component 8c by manipulating the pivot lever 14 about the pivot axis 15. In this way, the relative position of the two relatively displaceable connecting parts 8c, 8d of the length compensation device 9 can be locked. The elastic element 16 is supported on the pivot lever 14 at least in the locked position of the pivot lever 14.

[0068] Figure 6a-6e Different views are shown according to Figure 5a , 5b An embodiment of the length compensation device 9.

[0069] Figure 6a The length compensation device 9 is shown with a pivot lever 14 in the released position. The two connecting parts 8c, 8d are preloaded relative to each other via a force storage device 13, wherein longitudinal play occurring in the synchronization rod 5 relative to the rotating parts 102, 202 of the two drive devices 100, 200 can be compensated. In addition, at least one additional elastic element 16 is provided, by which play occurring transversely to the longitudinal direction L between the two connecting parts 8c, 8d can be compensated.

[0070] Figure 6b The cross-sectional view shows the Figure 6a Length compensation device 9. An elastic element 16 in the form of a leaf spring can be seen, by which play can be compensated transversely to the longitudinal direction L. The pivot lever 14 is mounted so as to be movable about a pivot axis 15, wherein the pivot lever 14 has a stop 17 adjacent to the pivot axis 15 which can be brought into contact with the elastic element 16.

[0071] Figure 6cThe length compensation device 9 is shown with the pivot lever 14 in a locked position, in which the pivot lever 14 ends flush with the essentially cylindrical connecting part 8 c.

[0072] Figure 6d The cross-sectional view shows the Figure 6c Length compensation device 9. By moving the pivot lever 14 about the pivot axis 15, the elastic element 16 can be pushed toward the inner connecting part 8d via the protrusion 17, wherein the relative position between the connecting parts 8c, 8d can be locked.

[0073] Figure 6e The cross section of the length compensation device 9 with the pivot lever 14 in the released position is shown. The position of the pivot lever 14 thus corresponds to Figure 6a , 6b The elastic element 16 in the form of a leaf spring can have a U-shaped cross section.

[0074] According to a feasible embodiment, it can be configured as follows:

[0075] one of the connecting parts 8c, 8d has an outer contour with a bevel 18a, 18b, preferably two bevels 18a, 18b, and the other of the connecting parts 8c, 8d has an inner contour with a corresponding mating shape 19a, 19b, and / or

[0076] - one of the connecting parts 8c, 8d has an outer contour in the form of a hexagon, and / or

[0077] The connecting parts 8 c , 8 d are supported in a preferably limited manner so as to be displaceable in a direction transverse to the longitudinal direction L of the synchronization rod 5 .

[0078] Figure 7a-7c A further embodiment of a length compensation device 9 is shown with two connecting parts 8 c , 8 d which are displaceable relative to one another and which are prestressed relative to one another in the longitudinal direction of the synchronization rod 5 by means of a force accumulator 13 .

[0079] Figure 7a The length compensation device 9 is shown in a perspective view. At least one of the connecting parts 8c, 8d can have a section which is designed as a hexagon.

[0080] Figure 7b The length compensation device 9 is shown in another perspective view. The connecting part 8d has at least one elastic block 22a, 22b, preferably two elastic blocks 22a, 22b, in order to fix the length compensation device 9 on the synchronization rod 5. The at least one elastic block 22a, 22b can be introduced into the cavity 23 ( Figure 4b), wherein the length compensation device 9 can be fixed in the cavity 23 of the synchronization rod 5 in a clamping manner by radial expansion of the elastic blocks 22a, 22b.

[0081] Figure 7c The cross-sectional view shows the Figure 7a , 7b The length compensation device 9 is a device for compensating the length of the synchronization rod 5 , wherein the connecting pieces 8 c , 8 d are pushed away from each other in the longitudinal direction L of the synchronization rod 5 by the force storage device 13 .

[0082] Figure 8a-8c A further embodiment of a length compensation device 9 is shown with two connecting parts 8 c , 8 d which are displaceable relative to one another and which are prestressed relative to one another in the longitudinal direction of the synchronization rod 5 by means of a force accumulator 13 .

[0083] Figure 8a A perspective view of the length compensation device 9 is shown. The interface 10 for releasably fixing the synchronization rod 5 can have a flattened section 12 or a recess which is arranged instead of the projections 11a, 11b, 11c, 11d, 11e.

[0084] Figure 8b The cross-sectional view shows the Figure 8a Length compensation device 9. It can be seen that at least two elastic elements 16 spaced apart from each other in the longitudinal direction L of the synchronization rod 5 are provided, by which play occurring transversely to the longitudinal direction L of the synchronization rod 5 can be compensated.

[0085] Figure 8c The overlapping area of ​​two connecting parts 8c, 8d is shown in cross section. One of the connecting parts 8c, 8d has an outer contour with inclined surfaces 18a, 18b, preferably two inclined surfaces 18a, 18b. The other of the connecting parts 8c, 8d has an inner contour with corresponding mating shapes 19a, 19b. Through the force of the elastic element 16, the one connecting part 8c is pressed into the other connecting part 8d via the inclined surfaces 18a, 18b and the corresponding mating shapes 19a, 19b.

[0086] Figure 9a The synchronization rod 5 is shown in a perspective view. At least one covering element 20a, 20b can be provided, which is arranged displaceably relative to the synchronization rod 5 in the longitudinal direction L of the synchronization rod 5 and is designed to cover one of the end regions of the synchronization rod 5. In the embodiment shown, the at least one covering element 20a, 20b is designed as a substantially cylindrical sleeve, which is supported displaceably along the synchronization rod 5.

[0087] Figure 9b The exploded view shows Figure 9aLength compensation device 9 shown in FIG. Two connecting parts 8c, 8d that are displaceable relative to each other are prestressed in the longitudinal direction L of the synchronization rod 5 by a force storage device 13. In addition, at least one elastic element 16 is provided, by which play occurring transversely to the longitudinal direction L can be compensated. The elastic element 16 has a bent end 16a in order to abut against one of the connecting parts 8c, 8d.

[0088] Figure 10a-10c Different views are shown according to Figure 9b Length compensation device 9.

[0089] Fig.10a The length compensation device 9 is shown in a perspective view. The length compensation device 9 comprises at least two connecting parts 8c, 8d which are telescopic relative to one another and which are prestressed relative to one another in the longitudinal direction L of the synchronization rod 5 by at least one force accumulator 13 .

[0090] Fig.10b The cross-sectional view shows the Fig.10a The length compensation device 9 is provided. The play occurring transversely to the longitudinal direction L of the synchronization rod 5 can be compensated by the additional elastic element 16. The bent end 16a of the elastic element 16 is supported on the circumference of the connecting part 8d, wherein in addition to the play compensation transversely to the longitudinal direction, the extension movement of the two connecting parts 8c, 8d relative to each other can be limited.

[0091] Fig.10c The cross section shows the Fig.10a , 10b The length compensation device 9. The inner connecting part 8d has inclined surfaces 18a, 18b, which are pushed by the force of the elastic element 16 to the corresponding matching shapes 19a, 19b of the other connecting part 8c.

[0092] Fig.11a and Fig.11b A further embodiment of the length compensation device 9 is shown.

[0093] Fig.11a The length compensation device 9 is shown with the two connecting parts 8c, 8d in the extended state.

[0094] Fig.11b The length compensation device 9 is shown with the two connecting parts 8 c , 8 d in a shortened state, in which the synchronization rod 5 can be detachably connected to the rotating parts 102 , 202 of the drive devices 100 , 200 via the interface 10 .

[0095] Fig.12a and Figure 12b It shows that according to the previous Fig.11a ,11b Length compensation device 9.

[0096] Fig.12a The length compensation device 9 is shown with the two connecting parts 8c, 8d in the extended state.

[0097] The length compensation device 9 comprises at least one force accumulator 13 acting in the longitudinal direction L of the synchronization rod 5 and by means of which the two connecting parts 8 c , 8 d are prestressed in the longitudinal direction L.

[0098] In addition to the force accumulator 13 , the length compensation device 9 comprises at least one play compensation element 24 acting transversely to the longitudinal direction L of the synchronization rod 5 , by means of which play occurring transversely to the longitudinal direction L of the synchronization rod 5 can be compensated.

[0099] According to a possible embodiment, it can be provided that the at least one clearance compensation element 24

[0100] - is configured as an elastic element 16, preferably wherein the elastic element 16 is configured as a leaf spring or a helical spring, and / or

[0101] - having at least one wedge element 24a with a wedge surface 25 extending obliquely relative to the longitudinal direction L of the synchronization rod 5, preferably wherein the at least one wedge element 24a is prestressed in a direction parallel to the longitudinal direction L of the synchronization rod 5 by an elastic element 16 and / or is supported so as to be displaceable in the longitudinal direction L of the synchronization rod 5.

[0102] According to a possible embodiment, it can be provided that the force storage device 13 and the elastic element 16 are each designed as a helical spring, wherein the longitudinal directions of the two helical springs extend substantially parallel to one another. In this way, a particularly compact arrangement can be achieved.

[0103] The additional play compensating element 24 therefore serves to compensate for play occurring transversely to the longitudinal direction L, wherein a relative movement of the two connecting parts 8 c , 8 d relative to one another in the longitudinal direction L is not however hindered by the play compensating element 24 .

[0104] Furthermore, the play compensating element 24 is designed to be self-tracking, so that play occurring transversely to the longitudinal direction L can be automatically compensated by the play compensating element 24 .

[0105] Figure 12b The shortened state shows the Fig.12a Length compensation device 9.

[0106] Fig.13 The exploded diagram shows the Fig.12a , 12b Length compensation device 9.

[0107] A deflection of the energy accumulator 13 in a direction running transversely to the longitudinal direction L can be limited by means of the at least one stabilizing element 26 .

[0108] By means of the at least one play compensating element 24 with the wedge element 24 and the spring element 16 , play occurring transversely to the longitudinal direction L between the two connecting parts 8 c , 8 d can be compensated.

Claims

1. A synchronizing device (6) comprising at least two drive devices (100, 200) for moving a movable furniture part (3), and comprising at least one synchronizing rod (5) for synchronizing the movement of the at least two drive devices (100, 200), wherein a first end region of the synchronizing rod (5) can be connected to a first rotating part (102) of a first drive device (100), and a second end region of the synchronizing rod (5) can be connected to a second rotating part (202) of a second drive device (200), wherein at least one length compensation device (9) is provided, by means of which, in the mounted state of the synchronizing rod (5), a play between the drive device (100, 200) and the synchronizing rod (5) in the longitudinal direction (L) of the synchronizing rod (5) can be at least partially compensated, It is characterized in that At least one of the drive devices (100, 200) has a housing (103, 203) and the length compensation device (9) is at least partially integrated into the housing (103, 203) and / or the length compensation device (9) is at least partially integrated into the synchronization rod (5).

2. The synchronization device (6) according to claim 1, It is characterized in that At least one of the rotating parts (102, 202) - having at least one toothed ring (7), preferably wherein the toothed ring (7) has at least two toothed sections (7a, 7b, 7c) which are arranged in a layer-by-layer manner against one another in the longitudinal direction (L) of the synchronization rod (5), and / or - supported on a shaft (8), wherein the length compensation device (9) is integrated into the shaft (8), and / or - integrated into the housing (103, 203) of the drive device (100, 200), and / or - having at least two components (8a, 8b) movable relative to each other in the longitudinal direction (L) of the synchronization rod (5), preferably wherein the components (8a, 8b) are prestressed relative to each other by at least one force storage device (13) and / or are telescopic relative to each other.

3. The synchronization device (6) according to claim 1 or 2, It is characterized in that The rotating parts (102, 202) each have an interface (10) for releasably fixing the synchronization rod (5).

4. The synchronization device (6) according to claim 3, wherein the interface (10) - designed in such a way that the synchronization rod (5) can be connected to the rotating part (102, 202) in only a single rotational position within a rotational angle range of 360°, and / or - Having a coupling part (10a) with an outer contour different from a circle and a receiving part (21) for receiving the coupling part (10a) in a form-fitting manner, preferably wherein the outer contour partially has a plurality of protrusions (11a, 11b, 11c, 11d) arranged substantially equidistantly in the direction of rotation and at least one flat section (12) or recessed section arranged in place of the protrusions (11a, 11b, 11c, 11d).

5. The synchronization device (6) according to any one of claims 1 to 4, It is characterized in that The length compensation device (9) has at least one force storage device (13) which acts in the longitudinal direction (L) of the synchronization rod (5).

6. The synchronization device (6) according to claim 1 , wherein the length compensation device (9) has at least one play compensation element (24) acting transversely to the longitudinal direction (L) of the synchronization rod (5), by which a play transversely to the longitudinal direction (L) of the synchronization rod (5) can be compensated, preferably wherein the at least one play compensation element (24) - is configured as an elastic element (16), preferably wherein the elastic element (16) is configured as a leaf spring or a helical spring, and / or - having at least one wedge element (24a) with a wedge surface (25) extending obliquely relative to the longitudinal direction (L) of the synchronization rod (5), preferably wherein the at least one wedge element (24a) is prestressed in a direction parallel to the longitudinal direction (L) of the synchronization rod (5) by an elastic element (16) and / or is supported so as to be displaceable in the longitudinal direction (L) of the synchronization rod (5).

7. The synchronization device (6) according to any one of claims 1 to 6, It is characterized in that The length compensation device (9) has at least one pivot lever (14) which can be pivoted between a release position and a locking position about a pivot axis (15) transverse to the longitudinal direction (L) of the synchronization rod (5).

8. The synchronization device (6) according to claims 6 and 7, It is characterized in that The elastic element (16) is supported on the pivot lever (14) at least in the locked position of the pivot lever (14).

9. The synchronization device (6) according to any one of claims 1 to 8, It is characterized in that The length compensation device (9) has at least two connecting parts (8c, 8d) which are supported so as to be displaceable relative to one another in the longitudinal direction (L) of the synchronization rod (5), preferably in a limited manner.

10. The synchronization device (6) according to claim 9, It is characterized in that - one of the connecting parts (8c, 8d) has an outer contour with a bevel (18a, 18b), preferably two bevels (18a, 18b), and the other of the connecting parts (8c, 8d) has an inner contour with a corresponding mating shape (19a, 19b), and / or - one of the connecting parts (8c, 8d) has an outer contour in the form of a hexagon, and / or The connecting parts (8c, 8d) are supported in a preferably limited manner so as to be displaceable in a direction transverse to the longitudinal direction (L) of the synchronization rod (5).

11. The synchronization device (6) according to any one of claims 1 to 10, It is characterized in that The synchronization rod (5) has at least one cavity (23) in at least one of its end regions, and the length compensation device (9) is at least partially arranged in the cavity (23), preferably wherein the length compensation device (9) has at least one first force storage device (13) acting in the longitudinal direction (L) of the synchronization rod (5), and the force storage device (13) is at least partially arranged in the cavity (23) of the synchronization rod (5).

12. The synchronization device (6) according to any one of claims 1 to 11, It is characterized in that At least one covering element (20a, 20b) is provided, which is arranged to be displaceable relative to the synchronization rod (5) in the longitudinal direction (L) of the synchronization rod (5) and is configured to cover one of the end regions of the synchronization rod (5).

13. The synchronization device (6) according to any one of claims 1 to 12, It is characterized in that The length compensation device (9) is arranged on the synchronization rod (5) in only one of the end regions.

14. The synchronization device (6) according to any one of claims 1 to 13, It is characterized in that The length compensation device (9) is connected or can be connected to the synchronization rod (5) in a friction fit.

15. The synchronization device (6) according to any one of claims 1 to 14, It is characterized in that At least one of the drive devices (100, 200) has at least one setting arm (101) which can be rotated about at least one first rotation axis in order to move the movably supported furniture part (3) relative to the housing (103, 203), wherein the rotating part (102, 202) of the drive device (100, 200) is arranged to be laterally offset relative to the first rotation axis of the setting arm (101, 201).

16. The synchronization device (6) according to any one of claims 1 to 15, It is characterized in that The synchronization rod (5) - can be releasably connected to the rotating part (102, 202) of the drive device (100, 200) even when the drive device (100, 200) is preferably already pre-assembled on the furniture frame (2), and / or - in a connected state, connected to the rotating part (102, 202) of the drive device (100, 200) in a rotationally fixed manner, and / or - prestressing the two rotating parts (102, 202) of the two drive devices (100, 200) in the longitudinal direction (L) of the synchronization rod (5) with a preset holding force between the two opposite rotating parts (102, 202) of the two drive devices (100, 200) by means of the length compensation device (9), and holding the two rotating parts (102, 202) without play in the longitudinal direction (L) of the synchronization rod (5), and / or - is constructed to have an immutable length, and / or - have the same cross-section throughout their entire length, and / or - Designed as a hollow profile with the same inner diameter over the entire length.

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