EP3282895A1

EP3282895A1 - Drive devices with synchronization device for a movable furniture part

Info

Publication number: EP3282895A1
Application number: EP16711504.7A
Authority: EP
Inventors: Christof GÖTZ; Bernd König
Original assignee: Julius Blum GmbH
Current assignee: Julius Blum GmbH
Priority date: 2015-04-14
Filing date: 2016-03-08
Publication date: 2018-02-21
Anticipated expiration: 2036-03-08
Also published as: ES2744598T3; AT516733A4; WO2016164942A1; EP3282895B1; MY182067A; US20180020833A1; AT516733B1; CN107529886B; JP6538875B2; JP2018514272A; US10405653B2; TWI594713B; CN107529886A; TW201637598A

Abstract

The invention relates to an arrangement (1) comprising a first drive device (2) for moving a movable furniture part (3), a second drive device (7) for moving the same movable furniture part (3), a synchronization device (6) for synchronizing the two drive devices (2, 7), wherein the two drive devices (2, 7) can assume different positions during the movement of the movable furniture part (3), and a correction device (50), by which both drive devices (2, 7) can be brought into the same position.

Description

Drive devices including synchronization device for a movable furniture part

The invention relates to an arrangement with a first drive device for moving a movable furniture part, a second drive device for moving the same movable furniture part and a synchronization device for synchronizing the two drive devices, wherein by two drive devices different positions during movement of the movable furniture part are receivable. In addition, the invention relates to a piece of furniture with such an arrangement.

In the furniture fitting industry driving devices - so-called touch-latch mechanisms - for moving or ejecting movable furniture parts (drawers, furniture doors, flaps, etc.) have been known for many years. As a result, the opening movement is automatically performed and a user only has to press on the movable furniture part to activate the ejection mechanism.

Especially in the case of wide drawers, two drive devices are often provided on opposite side areas of the drawer or of the furniture carcass in order to reliably detect a pressing on the drawer at any desired location. However, if only one of these two drive devices triggers by pressing this on the drawer, problems such as a misalignment of the drawer or a jamming or wedging can occur. In order to solve these problems, various methods with synchronization devices for synchronizing the two drive devices are already known from the prior art. As a result, movements of the two spaced-apart drive devices are switched, in other words just synchronized. This should guarantee a similar movement on both sides.

Examples of such drive or ejection devices with synchronization are EP 2 429 339 B1, WO 2009/1 14884 A1, EP 1 314 842 B1 and AT 008 882 U1. In these devices, the entire unlocking process and also a part of the ejection process are synchronized. Another example of a synchronization shows the WO 2013/059847 A1, according to which it is all about that the lock - and not the unlocking - runs synchronously on both sides to guarantee a safe and trouble-free closing.

In addition, reference is made to DE 20 2009 005 255 111, which, in contrast to the previously cited documents, does not have an independent component of the ejection device as a synchronization element. Rather, here forms the drawer itself, so to speak, a synchronization element, since the force of a just unlocked detent fitting on the drawer is forwarded to the other detent fitting, causing the force of both ejection force memory unlocking the other detent fitting.

Furthermore, from WO 2012/159136 A1 a synchronization device for a movably mounted furniture part is known. In this case, a synchronization rod has two partial waves, between which an overload device is arranged. When a predetermined holding torque is exceeded, a rotational movement between the two partial waves is released. As a result, the synchronization rod is brought from an operating position to an overload position. In this overload position no motion transmission or synchronization is possible. This is only possible again when the spring-loaded detent part, which is disengaged in the event of overload, correctly engages again in one of the partial shafts, in which case the original relative position of the two partial shafts is again given to one another. A generic arrangement is apparent from the unpublished, Austrian patent application AT 514 865 (application number A 785/2013). Since not all movements of the components (ejection slide, transmission elements, control levers, etc.) of the drive devices are constantly synchronized, it may happen that the two drive devices of the arrangement are in mutually different positions. This can cause the two drive devices do not perform the movements together (synchronously). Thus, no secure locking and no common ejection are possible. The drawer can not be operated as intended. The object of the present invention is therefore to provide a comparison with the prior art improved arrangement. In particular, the reliability should be improved. This is achieved by an arrangement having the features of claim 1. Accordingly, according to the invention a correction device is provided, with which the two drive devices are brought into the same position. In other words, it is guaranteed by the correction device that both drive devices are in the same position in the movement sequence of the drive device or return to the same position.

Various positions of the drive device are, for example, the position in a clamping section, the position in a locking section, the position in an overpressing section and / or the position in an ejection section. As an example, it should be noted that one of the drive devices connects in a position at the beginning of the clamping section, while the other drive device -. B. due to incorrect operation - in a position at the end of the locking portion. Now, if an active closing movement of the movable furniture part, then a false triggering of the second-mentioned drive device would take place, although the former drive device has not yet reached a position at the end of the locking portion. This is prevented by a correction device, which brings the two drive devices - for example, before the second-mentioned drive device is triggered - in the same position.

In principle, the correction device can be designed such that it detects a misalignment by means of a corresponding electronic detection device and triggers a correction movement of one of the drive devices on the basis of a corresponding signal. This can be done independently of the respective position of the movable furniture part. That is, the correction device automatically detects whether a malposition is given within the arrangement and triggers a corresponding correction movement. Preferably, however, it is provided that during the movement of the movable furniture part by the correction device, the two drive devices can be brought into the same position. Especially preferred the triggering of the correction device takes place by the movement of the movable furniture part.

In itself, it is arbitrary, in which same position the drive devices are brought by the correction device. It is preferably provided that the drive devices can be brought by the correction device in the locking position at the end of the locking portion.

The correction device can in principle be part of the drive devices. For example, position monitoring could be performed by a position sensor. Based on a corresponding signal, the movement of one of the drive devices is then inhibited until the second drive device reaches the same position. Preferably, however, a purely mechanical correction device is provided.

According to a particularly preferred embodiment, it is provided that the correction device is part of the synchronization device. A functionally simple embodiment provides that the synchronization device has a synchronization rod with a first rod part and a second rod part which can be rotated relative to the first rod part, wherein the two rod parts also form the correction device. About the rotation of the rod parts to each other thus the malposition of the drive devices is corrected.

In particular, this can take place in that the two rod parts to each other have a first operating position, in which a certain holding torque between the two rod parts is given and the two rod parts to each other have a second, rotated to the first operating position operating position. For a consistent functionality is particularly preferably provided that in the second operating position, the holding torque between the two rod parts is substantially equal to the holding torque in the first operating position. Thus, even with a subsequent malposition again again the correction device can be effective in the same way. It is possible that the synchronizing device is directly connected to a part (eg, the ejecting carriage) of the respective driving device. In a preferred embodiment, however, it is provided that the synchronization device has a first coupling element for connecting the synchronization device with the first drive device and a second coupling element for connecting the synchronization device with the second drive device, wherein the coupling elements are connected in a transfer-transmitting manner via the synchronization rod. This motion transmission is preferably carried out in that the coupling elements and the synchronization rod are connected in each case via a toothed rod formed on the respective coupling element and via a gearwheel which forms the synchronization rod, wherein the toothed rod and toothed wheel mesh with one another.

In order to detect the position of the drive device or of parts of the drive device, a preferred mechanical variant provides that the coupling elements are each limitedly movable by a preferably resilient stop. The stop can be part of a housing. The coupling elements in turn are preferably movable on this housing, in particular rotatable, mounted. For the correction of malpositioning is then provided according to a preferred embodiment, that in stop applied to the first coupling element and simultaneous movement of the second coupling element, the rod parts of the synchronization rod prevent movement of the second coupling element to the first coupling element by rotating the rod parts to each other. Thus, the first coupling element can not move and unwanted moving further of the associated drive device in a further position is inhibited. In particular, the rotation and thus the correction by the correction device is triggered by a rotational movement between the first and second rod part occurs when the force - in the form of holding torque - between the two rod parts is smaller than the force that stops the movement of the Opposite coupling element. This is especially true when the stop is compliant, for example, as a leaf spring or as an elastic arm is formed. Particular preference is therefore provided that the two Coupling elements, the stops of the coupling elements and the mutually rotatable rod parts form the correction device.

In order to ensure as constant as possible functionality of the correction device, it is preferably provided that the first rod part can be inserted into the second rod part, wherein the holding torque between the rod parts - regardless of a depth of insertion of the first rod part in the second rod part - remains substantially the same size. For the design of the drive devices is first to mention that they need not be identical or functionally identical. For a simple mass production but is preferably provided that the drive devices are formed substantially mirror-symmetrical. In concrete it is preferably provided that the drive devices each have a lockable ejection device for ejecting the movable furniture part from a closed position to an open position and a locking device for locking the ejection device in a locking position, wherein by an over-pushing movement of the movable furniture part in a lying behind the closed position Überdrückstellung the ejection device can be unlocked from the locking position.

The preferred embodiments explained in more detail below are always to be read for both drive devices, although the concrete description is always made on the basis of the first drive device and its components. Thus, all information applies mutatis mutandis to the second drive device.

Concretely, in a preferred embodiment of the present invention, it is provided that the first ejection device comprises a housing, an ejection slide movable on the housing, an ejection force accumulator acting on the ejector carriage, and a control lever movably mounted on the ejection carriage, preferably rotatable, and the first locking device is a control lever Catching element and a locking element, on which rests the latching element in the locking position. Furthermore, it is preferably provided that the latching element is movable in the overpressure movement from the locking position into an overpressing section and is movable by an ejection section during the opening movement of the ejection force accumulator, wherein the locking element is movable by the latching element moved in the ejection section in the opening direction. That is, when the locking element is no longer in the locking position, the locking element can move the locking element. Basically, the locking can be done via known touch-latch mechanisms. Preferably, however, it is provided that the first drive device has a heart-shaped cam track for the latching element, with a clamping portion formed in the housing for clamping the ejection force accumulator, a locking portion, wherein the locking element mitbildet the locking portion formed in the housing overpressure portion and the ejection portion formed in the housing.

Furthermore, it is preferably provided that the locking element is connected to the synchronization device. A particularly simple arrangement with few components results when the locking element is formed integrally with the synchronization device or with at least part of the synchronization device. Here can also be provided that the locking element on the housing movable, preferably rotatable, is mounted. The particular advantages of the simple design arise especially when the locking element has a locking surface on which the latching element in the locking position, and a synchronization surface on which the latching element rests in the opening direction during movement through the ejection section. In this case, the locking surface is aligned substantially tangentially to the direction of rotation of the locking element and the synchronization surface is aligned substantially radially with respect to the axis of rotation of the Verrieglungselements. That is, by applying force to the locking surface no rotation of the locking element - and thus no synchronization - triggered become. Only by the application of force to the synchronization surface can be done the rotation and thus synchronization movement.

Preferably, the locking element is part of the coupling element. Particularly preferably, the locking element is formed integrally with the coupling element of the synchronization device.

Protection is also desired for a piece of furniture with a furniture body, a furniture part movably mounted on the furniture body, and an arrangement according to the invention.

Further details and advantages of the present invention will be explained in more detail below with reference to the description of the figures with reference to the exemplary embodiments illustrated in the drawings. Show:

1 shows a piece of furniture with a movable furniture part together with drive devices and synchronizing device in a partially cut-away perspective view,

2 is an exploded view of a drive device,

Fig. 3 is a perspective view of the assembled

Driving device

4 parts of a synchronization device,

Fig. 5 is a partially exploded view of the arrangement with two

Drive devices and the synchronization device,

6 shows the assembled arrangement,

7 shows an alternative variant of the synchronization device,

8 to 18 the sequence of movements of an arrangement in plan view,

19 is an exploded view of an alternative embodiment of

Arrangement,

20 to 23a the movement of the arrangement of FIG. 19 in plan view and in perspective view,

Fig. 24 to 27 the erroneous movement of an arrangement without

Corrector, 28 to 35a various views and sections of components of a

Embodiment <a synchronization device according to the invention and

36 to 40 corrected by the correction means movement of a

Arrangement.

1 to 23a, an arrangement 1 is described, as is apparent from the non-prepublished AT 514 865. From the basic construction ago identical construction is also a preferred embodiment of the present invention. Differences are given above all in the area of the synchronization device 6, which are explained in the later following drawings from FIG. 24.

Fig. 1 shows a furniture 18 with a furniture body 19 and a movable relative to this furniture part 3 in the form of a drawer in a partially broken, perspective view. This drawer is movably mounted on the furniture body 19 via a pull-out guide 36. On the underside of the movable furniture part 3, an arrangement 1 is mounted, which has two laterally attached to the drawer bottom 63 or on a drawer rail 64 driving devices 7 and 2 (see in particular FIG. 5) and a synchronization device 6.

In Fig. 2 is a part of the arrangement 1, especially with the essential components of the first drive device 2 in an exploded view. About the housing 8, the first drive device 2 is attached to the movable furniture part 3. On the one hand on the housing 8 and on the other hand on the ejection slide 9 designed as a tension spring ejection force memory 10 are held. The ejection slide 9 is movable along the guide track 32 in the housing 8. The housing 8, the ejection force memory 10, the ejection slide 9 and the control lever 23 together form the essential components of the first ejection device 4. Furthermore, the first ejection device but also the transmission element 20 can be assigned. This is located on the transfer stop 25 on the control lever 23 formed stop 33. The transmission element 20 can be moved along the control path 24 formed in the housing 8. This control track 24 has an angled end section 34. As soon as the catch lever 22, which is connected in an articulated manner with the transmission element 20, enters this angled end section 34, pivots this catch lever 22, whereby the drive device 2 is released from the mobelkorpusfesten driver 21. Conversely, if the catch lever 22 leaves this angled end section 34, the catch 21 is caught or held between the catch lever 22 and the transfer element 20. Furthermore, the coupling element 16 of the synchronization device 6 is rotatably mounted on the housing 8 about the axis of rotation D. Integral with this coupling element 16 and the locking element 12 is formed, which forms the locking device 5 for the first ejection device 4 together with the arranged on the control lever 23 locking element 1 1. In addition, the heart cam-shaped slide track 13 formed in the housing 8 is shown, which has the clamping section S, the push-through section DR, the locking section V, the overpressure section Ü and the ejection section A. The locking portion V is additionally formed by the locking element 12. In Fig. 3 essential parts of the arrangement 1 are shown in the assembled state. The ejection force memory 10 are stretched and the latching element 1 1 is located in the locking portion V, whereby the first ejection device 4 is in the locking position VS. Since the driver 21 is caught by the catch lever 22, the movable furniture part 3, not shown, is in the closed position SS.

An example of components of a synchronization device 6 not according to the invention is shown in FIG. The racks 27 and the gear 28 are movably mounted on the base plate 26. In Fig. 5, the individual components of the assembly 1 can be seen in not yet fully assembled state, since the connection via the synchronization rods 17 is not yet established. However, this is shown in Fig. 6, according to which the synchronization rods 17 are each pivotally connected on the one hand with the coupling elements 16a and 16b and on the other hand with the racks 27.

An alternative to Fig. 6 embodiment of a - also not according to the invention - synchronization device 6 is shown in Fig. 7, wherein the synchronization rods 17 are forced linearly to each other via slot connections. 8 to 23a, the basic sequence of movements of the drive devices 2 and 7 and the synchronization device 6 is explained below. Although the illustrated components are not formed according to the invention with the reference numerals 17, 26, 27 and 28, the functional sequence described applies mutatis mutandis to a preferred embodiment of the inventive arrangement. 1

8 shows a plan view of the arrangement 1 with the first drive device 2, the second drive device 7 and the synchronization device 6. It can be seen from the detailed cutouts on the left and right that the latching element 11 is located in the locking section V of the cardio-curved slide track 13 , In this case, the locking element 1 1 is applied to the locking surface 14 of the locking element 12. This locking surface 14 is aligned tangentially to the direction of rotation of the axis of rotation D. Since, therefore, the force acting on the latching element 1 1 force of the ejection force memory 10 can not trigger rotational movement of the coupling elements 16a and 16b, the ejection devices 4 each remain in their locking position VS. The movable furniture part 3 is in the closed position SS.

Now, starting from Fig. 8 in the closing direction SR is pressed on one side on the left portion of the movable furniture part 3, the locking element 1 1 of the first drive device 2 is moved into the Überdrückabschnitt Ü, as the housing 8 relative to the control lever 23, the transmission element 20th and moved to the driver 21 in the closing direction (see Fig. 9). In this case, the latching element 1 1 is moved by the Abweisschräge 35 from the locking portion V in the Überdrückabschnitt Ü. This overpressure movement begins free of a movement transmission between the first drive device 2 and the synchronization device 6. The second drive device 7 thus remains unaffected by this overpressure movement on the left side. As a result, the pushing-over movement is performed only against the force of the ejection force accumulator 10 of an ejection device 4. The movable furniture part 3 is thus - at least on one side - in the overpressure position ÜS. As soon as the movable furniture part 3 is released, the ejection force accumulator 10 of the first ejection device 4 can relax. Thereby, the housing 8 together with the attached movable furniture part 3 relative to the driver 21 in the opening direction OR ejected (see Fig. 10), whereby the locking element 1 1 also enters the ejection section A of the heart-shaped slide track 13. The first ejection device 4 thus actually abuts the furniture body 19, in particular the driver 21. Up to this point, no movement has been transmitted to the synchronization device 6. However, the locking element 1 1 is shown in FIG. 10 already at the synchronization surface 15 of the locking element 12 at. This synchronization surface 15 is aligned radially with respect to the axes of rotation D of the coupling elements 16a and 16b.

By this alignment of the synchronization surface 15 finally takes place - when the ejection force memory 10, the locking element 1 1 further moved by the ejection section A in the opening direction in the position shown in FIG. 1 1 - the motion transmission from the first drive device 2 to the synchronization device 6 and further to the second Drive device 7. By the synchronization, the locking element 12 of the second drive device 7 is pivoted, whereby the locking element 1 1 is no longer locked to the locking surface 14. Thus, this locking element 1 1 passes directly from the locking portion V in the ejection section A. It may also relax the ejection force memory 10 of the second ejection device 4 and the movable furniture part 3 is ejected from both ejectors 4 synchronously in an open position OS. After further rotation of the two coupling elements 16a and 16b in the position shown in FIG. 12, the locking element 1 1 and the locking element 12 are no longer abutting each other. The ejection force storage 10 of both ejection devices 4 can relax further. Compared to FIG. 10, it can also be clearly seen that the coupling elements 16a and 16b have rotated about the axis of rotation D by approximately 50 °. This rotational movement is limited on the one hand by abutment of the locking element 12 on the housing 8 and on the other hand by striking the slightly elastic spring element 30 also on the housing 8. Generally this rotation range can be between 30 ° and 90 ° degrees, depending on the design. The relatively wide rotational movement brings the advantage that especially the total game of the synchronization device 6 has little effect on the synchronization.

Finally, according to FIG. 13, both ejection force accumulators 10 are fully relaxed and the ejection process is completed.

By the momentum or active pulling on the movable furniture part 3 then the drive device 2 and 7 reach the position shown in FIG. 14. In this case, the control lever 23 and the transmission element 20 no longer contact. However, the catch lever 22 is located in the angled end portion 34 of the control track 24, whereby the driver 21 is released. The movable furniture part 3 is thus freely movable.

The closing operation of the movable furniture part 3 is shown in FIG. 15. Here, the driver 21 is trapped again and via the transmission element 20, the control lever 23 and with this the locking element 1 1 moves in the clamping section S, whereby the ejection force memory 10 are manually clamped when closing.

During this closing and clamping movement, both latching elements 1 1 according to FIG. 16 come into abutment with the reset levers 29 of the coupling elements 16 a and 16 b. As a result, the coupling elements 16a and 16b are respectively rotated about the axis of rotation D, so that, as shown in FIG. 17, the locking elements 12 move closer and closer in the direction of the locking section V.

Finally, in FIG. 18, the coupling elements 16a and 16b are again in their initial position, so that the locking surfaces 14 of the locking elements 12 again serve to lock the locking elements 11. The slightly elastic elements 30 of the coupling elements 16a and 16b ensure the correct positioning (zero position) of the locking elements 12, so that the locking elements 12 along the detent recess or the locking portion V. It is again reached the locking position VS of the two ejection devices 4 in tensioned ejection force memory 10. The movable furniture part 3 is again in the closed position SS. To ensure that the coupling elements 16a and 16b in their position - after the locking element 1 1 no longer touches the reset lever 29 and before the locking element 1 1 on the locking element 1 1 again - can stay 8 small in the housing Locking lugs may be formed, which cooperate with the coupling elements 16a and 16b, preferably with their locking elements 12.

In Fig. 19, an alternative embodiment of the synchronization device 6 is shown in an exploded view. Accordingly, the rack 27 is formed directly on the coupling element 16. On the housing 8, a holder 31 is fixed, on which the synchronization rod 17 is rotatably mounted with trained at the end of gear 28. The gear 28 meshes with the rack 27, so that a rotational movement of the coupling element 16 in a rotational movement of the synchronization rod 17 - and vice versa - is transmitted. The remaining components of the arrangement 1 according to FIG. 19 are identical to the first embodiment.

In FIGS. 20 to 23 a, the most important positions of FIG

Movement of the drive devices 2 and 7 and the

Synchronization device 6 shown. The rotational movement of the synchronization rod 17 is best illustrated in Fig. 23a.

A problem is explained in detail with FIGS. 24 to 27, which has sometimes resulted in previous arrangements 1 with two drive devices 2 and 7 and a synchronization device 6.

By incorrect operation or by the installation of mutually different positions located drive devices 2 and 7 it could happen that - as exemplified in Fig. 24 - the first drive device 2 occupies a position at the beginning of the clamping section S, while the second drive device 7 a Position at the end of the locking portion V occupies. In other words, the two drive device 2 and 7 are in different positions. Concretely, the locking element 11 of the first drive device 2 is located at the end of the ejection section A, which simultaneously forms the beginning of the clamping section S (see detail below left). , The locking element 11 of the second drive device 7 is located at the end of Locking section V (see detail below right), thus in the locking recess of the heart-shaped cam track 13th

If now starting from this malposition in the closing direction SR is pressed onto the still open movable furniture part 3, so in the drive device 2 due to the fixed driver 21, the transmission element 20 and with this the control lever 23 together with locking element 1 1 moves relative to the housing 8. As a result, the position shown in FIG. 25 is reached. The locking element 1 1 has already covered a part of the clamping portion S. The locking element 1 1 and its control lever 23 is thereby already on the first coupling element 16a (see especially the detail below bottom left). The locking element 1 1 of the second drive device 7 is still in the detent recess of the locking portion V (see especially the detail below right). As soon as the first coupling device 16a of the first drive device 2 begins to rotate due to the moving control lever 23 in a further movement in the closing direction SR, the synchronization device 6 transmits motion to the second coupling element 16b of the second drive device 7, which thereby rotates clockwise , This also causes a movement of the integrally formed with the second coupling element 16b locking element 12, whereby the locking recess opens and the locking position VS is released. As a result, the ejection force accumulator 10 of the second drive device 7 can relax and thereby move the ejection slide 9 through the ejection section A. Thus, as shown in FIG. 26, the second drive device 7 is in a position at the end of the ejection section A while the first one Drive device 2 is located in a position at the beginning of the locking portion V.

In Fig. 27, finally, the locking element 1 1 of the first drive device 2 has reached the end of the locking portion V.

This undesired incorrect synchronization is remedied by the present invention, this being explained in more detail below with reference to the preferred embodiment according to FIGS. 28 to 40. In Fig. 28, components of the synchronizing device 6 are illustrated. In particular, the first rod part 17a inserted in the third, profile-shaped or extruded rod part 17c can be seen.

As shown in FIG. 29, these two rod parts 17a and 17c together with the second rod part 17b form the synchronizing rod 17. At the other end of the third rod part 17c, two further rod parts 17a and 17b of identical construction are provided. Together with the coupling elements 16a and 16b, the synchronization rod 17 forms the synchronization device 6. In the Fig. 29a shown in greater, the toothed rod 27 formed on the first coupling element 16a and the gearwheel 28 formed on the second rod part 17b can be seen.

In the assembled state according to FIGS. 30 and 30a, the rack 27 and the gearwheel 28 mesh. The first rod part 17a is inserted with its front area into the second rod part 17b.

In Fig. 31, the synchronizer 6 is attached to the first drive device 2. The drawn section i-i can be seen in FIG. 31a. Fig. 31b shows a detail of Fig. 31 a. In this section, it can be seen that the first rod part 17a fits snugly and thus is firmly seated or plugged in the third rod part 17c. In the same way, the first rod part 17a is also inserted into the second rod part 18b. The frictional engagement is achieved via the contact surface 37. At the same time, however, a free space 39 also remains in sections between the first rod part 17a and the second rod part 17b. From Fig. 31 b, the housing 8 of the first drive device 2 is also partially visible, which is mounted on the mounting plate 38 on a movable furniture part 3, not shown. On the housing 8, in turn, the first coupling element 16a is rotatably mounted, which meshes via the rack 27 with the gear 28 of the second rod portion 17b. The holder 31 is attached to the housing 8 and forms a pivot bearing for the synchronization rod 17th

In Fig. 32 the section ii-ii is shown, which is shown in Fig. 32a. Fig. 32b shows a detail of Fig. 32a, wherein it is apparent that the front portion of the first Rod part 17a is formed in cross section square with rounded corners. The second rod part 17b has three bulges 42 in cross-section. As a result, the first rod part 17a is not fully in contact with the second rod part 17b. Rather, in addition to the contact surfaces 37 and the free spaces 39. The dash-dotted line corresponds substantially corresponds to the section II, which is shown in Fig. 31 b and also illustrates the contact surface 37 and the space 39. In this Fig. 32b, the rod parts 17a and 17b to each other on a first operating position B1. In this first operating position B1, a specific holding torque H between the rod parts 17a and 17b due to the friction in the area of the contact surfaces 37 is given.

In Fig. 33 the section iii-iii is shown, which is shown in Fig. 33a. 33b shows a detail from FIG. 33a, wherein the first rod part 17a and the second rod part 17b form the correction device 50 in that the first rod part 17a is rotatable relative to the second rod part 17b. Concretely, in Fig. 33b, the first rod part 17a has been twisted toward the second rod part 17b with respect to Fig. 32b (illustrated by the differently aligned hatching). That is to say, the first rod part has overcome the holding torque H in the area of the contact surfaces 37 and has rotated relative to the second rod part 17b (in this case about 90 °) to the second operating position B2. In this second operating position B2, the holding torque H in the area of the contact surfaces 37 is again the same as in the first operating position B1.

A comparison between FIGS. 32c and 33c also shows the different operating positions B1 and B2 of the synchronization device 6. In particular, the marked markings M illustrate the relative rotational movement between the first rod part 17a and the second rod part 17b. The extent of rotation is arbitrary, as long as a malposition is compensated thereby and in the second operating position B2 again a roughly equal holding torque H is given.

Referring to FIGS. 34 and 35, it should first be pointed out that in the furniture industry 16 mm and 19 mm are the most common plate thicknesses for wood or chipboard for furniture construction. To furniture with these different plate thicknesses with identical In order to be able to equip arrangements 1, the synchronization rod 17 is usually adjusted in length. However, in order to be able to ensure the same functionality of the correction device 50 even with these different long synchronization rods 17, it is preferably provided that the holding torque H between the rod parts 17a and 17b is independent of one Insertion depth of the first rod portion 17a in the second rod portion 17b - remains essentially the same size. For this purpose, a smaller insertion depth is shown in FIGS. 34 and 34a (suitable for a plate thickness of 16 mm). In this case, the front portion of the first rod portion 17a is disposed in the region of the tabs 40 in which the second rod portion 17b is less rigid than in the area of the recesses 42. Thus, the total contact area 37 between the rod portions 17a and 17b is relatively large but is given a relatively low rigidity of the tabs 40. Thus, the elasticity and size of the contact surfaces 37 cooperatively provide the holding torque H. On the other hand, in Figs. 35 and 35a, the first rod portion 17a is inserted deeper into the second rod portion 17b (suitable for a plate thickness of 19 mm). The size of the contact surfaces 37 is lower in this case due to the recesses 42. Due to the higher rigidity of the second rod part 17b in the region close to the gearwheel, however, the same holding torque H results overall as in the case of a smaller insertion depth. A constant holding torque H can be ensured at different insertion depths and with constant rigidity of the components involved alone by the same size of the contact surfaces 37. This is illustrated in a comparison between Figs. 34b and 35b.

With reference to FIGS. 36 to 40, the sequence of movements and / or the mode of operation of an arrangement 1 with a correction device 50 according to the invention will be explained below. in Fig. 36 is the same initial position of the arrangement 1 as shown in Fig. 24, except that in this case, in a reverse manner, the second drive device 7 is in a position at the beginning of the clamping section S, while the first drive device 2 in a position on End of the locking portion V is located. If now starting from this position in the closing direction SR is pressed onto the open furniture part 3, so moves in the second drive device 7 via the driver 21 and the transmission element 20, the control lever 23 together with the locking element 1 1 along the clamping section S. This enters the control lever 23 in contact with the second coupling element 16b, as best seen in Fig. 37 bottom right. It can already be seen in this FIG. 37 that both drive devices 2 and 7 each have an elastic arm 44.

In detail, it is apparent from Fig. 37a that the games of the individual components to each other are set so that when in locking position befindlichem locking element 12 between the coupling elements 16a and 16b and formed by the elastic arm 44 stop 43 remains a small gap. Due to its rigidity (spring hardness), the elastic arm 44 opposes a specific force K via the stop 43 of a corresponding movement of the respective coupling element 16a or 16b.

As soon as, starting from FIG. 37, the movable furniture part 3 is moved further in the closing direction SR, the second coupling element 16b of the second drive device 7 begins to rotate clockwise (see FIG. 38). This movement is transmitted via the rack 27 and the gear 28 to the synchronization rod 17. As a result, the first coupling element 16a moves counterclockwise via the left-side gearwheel 28 and the corresponding toothed rod 28 until this first coupling element 16a bears against the stop 43. Upon continued movement of the second coupling element 16b, the correction device 50 is actuated by rotational movement between the first rod part 17a and the second rod part 17b, since the force - in terms of the holding torque H - between the two rod parts 17a and 17b is less than the force K, the stop 43 (or the elasticity of the elastic arm 44) opposes a movement of the first coupling element 16a. In other words, the first coupling element 16a is prevented from further movement in a counterclockwise direction by the stop 43. As a result, the left-side rack 27 no longer moves and the gear 28 of the left-side second rod portion 17b can not turn either. However, since the left-side first rod part 17a still receives an angular momentum starting from the second coupling element 16b, the holding torque H becomes overcome between the two rod parts 17a and 17b and the rod parts 17a and 17b rotate relative to each other from the first operating position B1 to the second operating position B2. The second drive device 7 has already reached the beginning of the locking section V in FIG. 38, from where on the contact between the control lever 23 and the second coupling element 16b stops again. In Fig. 38 it is illustrated that the abutment 43, the first coupling element 16a, the first rod part 17a and the second rod part 17b (with the intervening forces K and H) form the correction device 50. In the same way, the identical components on the other side also form a correction device 50.

In Fig. 39, finally, both drive devices 2 and 7 again reached the same position in which the respective latching element 1 1 is located at the end of the locking portion V. FIG. 40 also shows a subsequent synchronized unlocking or pushing-over movement, whereby in this case both latching elements 1 1 reach the overpressure section Ü of the heart-shaped slide track 13.

Finally, it should be mentioned that the stop 43 can also be made unyielding. For example, the stop 43 may be formed by a solid surface of the housing 8. However, the compliance of the stop 43 brings an advantage in case of incorrect operation. Namely, when the drive device 2 or 7 is stopped shortly after unlocking and at the beginning of the ejection section A, the locking element 1 1 can get back from the "wrong" side in the detent recess by the coupling element 16 coming from the ejection section A and on Locking element adjacent detent element 1 1 is rotated against the force K of the elastic arm 44.

It should also not be excluded that the elastic arm 44 is attached to the coupling element 16 and abuts a - then fixed and preferably formed by the housing 8 - stop 43. It is also important here that the force K between stop 43 and coupling element 16 is greater than the holding torque H. The invention is described in this description above all with regard to a rotating synchronization rod 17. In an analogous manner, however, it is quite conceivable that a correction device 50 is also used in synchronization devices 6, as described and illustrated in the embodiments (not according to the invention) according to FIGS. 1 to 23a. It is also possible that the correction device 50 is integrated in the region of the drive device 2 and 7 instead of in the region of the synchronization device 6. LIST OF REFERENCE NUMBERS

1 arrangement

2 first drive device

3 movable furniture part

4 first ejection device

5 first locking device

6 synchronization device

7 second drive device

8 housing

9 ejection slides

10 ejection energy storage

1 1 locking element

12 locking element

13 heart-shaped slide track

14 locking surface

15 Synchronization cache

16 coupling element

16a first coupling element

16b second coupling element

17 synchronization bar

17a first rod part

17b second rod part

17c third, profile-shaped rod part

18 furniture

19 furniture carcass 20 transmission element

21 drivers

22 catching lever

23 control lever

24 control track

25 transmission stop

26 base plate

27 rack

28 gear

29 reset lever

30 elastic elements

31 holders

32 guideway

33 stop

34 angled end section

35 deflection slope

36 pull-out guide

37 contact surface

38 mounting plate

39 free space

40 tabs

41 recesses

42 bulges

43 stop

44 elastic arm

50 correction device

63 drawer bottom

64 shop rail

SS closed position

OS open position

VS locking position

Overpressure position

OR opening direction

Ü overpressure section A discharge section

V locking section

DR push-through section

S Clamping section D Rotary axis

M mark

B1 first operating position

B2 second operating position

H holding torque K force

Claims

claims

1 . Arrangement (1) with a first drive device (2) for moving a movable furniture part (3), a second drive device (7) for moving the same movable furniture part (3) and a synchronization device (6) for synchronizing the two drive devices (2, 7) , wherein by two drive devices (2, 7) different positions while moving the movable furniture part (3) are receivable, characterized by a correction device (50), with which the two drive devices (2, 7) can be brought into the same position.

2. Arrangement according to claim 1, characterized in that the different positions of the drive devices (2, 7) has a position in a clamping portion (S), a position in a locking portion (V), a position in a Überdrückabschnitt (Ü) and a position in an ejection section (A).

3. Arrangement according to claim 1 or 2, characterized in that by the correction means (50), the two drive devices (2, 7) during movement of the movable furniture part (3) can be brought into the same position.

4. Arrangement according to one of claims 1 to 3, characterized in that the correction device (50) is part of the synchronization device (6).

5. Arrangement according to one of claims 1 to 4, characterized in that the synchronization device (6) has a synchronization rod (17) with a first rod part (17 a) and a second, to the first rod part (17 a) rotatable rod part (17 b), wherein the two rod parts (17a, 17b) form the correction device (50).

6. Arrangement according to claim 5, characterized in that the two rod parts (17a, 17b) to each other have a first operating position (B1), in which a certain holding torque (H) between the two rod parts (17a, 17b) is given.

7. Arrangement according to claim 6, characterized in that the two rod parts (17a, 17b) to each other a second, the first operating position (B1) twisted operating position (B2), in which the holding torque (H) between the two rod parts (17a, 17b) is substantially the same size as the holding torque (H) in the first operating position (B1).

8. Arrangement according to one of claims 1 to 7, characterized in that the synchronization device (6) has a first coupling element (16a) for connecting the synchronization device (6) with the first drive device (2) and a second coupling element (16b) for connecting the Synchronization device (6) with the second drive device (7), wherein the coupling elements (16a, 16b) via the synchronization rod (17) are connected to transmit motion.

9. Arrangement according to claim 8, characterized in that the coupling elements (16a, 16b) and the synchronization rod (17) each have a coupling element (16a, 16b) formed on the rack (27) and via a synchronization rod (17) mitbildendes gear (28) are connected to each other in a motion-transmitting manner.

10. Arrangement according to claim 8 or 9, characterized in that the coupling elements (16a, 16b) in each case by a, preferably resilient, stop (43) are limitedly movable.

1 1. Arrangement according to claim 10, characterized in that at the abutment (43) fitting first coupling element (16a) and simultaneous movement of the second coupling element (16b), the rod parts (17a, 17b) of the synchronization rod (17) a motion transmission from the second Prevent coupling element (16b) on the first coupling element (16a) by the rod parts (17a, 17b) rotate to each other.

12. Arrangement according to claim 10 or 1 1, characterized in that the stop (43) compliant, preferably on an elastic arm (44) is formed, wherein a rotational movement between the first rod part (17 a) and second rod part (17 b), when the force - in the form of the holding torque (H) - between the two rod parts (17a, 17b) is smaller than the force (K), the stop (43) a movement of the respective

Coupling element (16a, 16b) opposes.

13. Arrangement according to one of claims 10 to 12, characterized in that the two coupling elements (16a, 16b), the stops (43) for the coupling elements (16a, 16b) and the mutually rotatable rod parts (17a,

17b) form the correction device (50).

14. Arrangement according to one of claims 5 to 13, characterized in that the first rod part (17a) in the second rod part (17b) can be inserted, wherein the holding torque (H) between the rod parts (17a, 17b) - regardless of a Einstecktiefe of the first rod part (17a) in the second rod part (17b) - remains substantially the same size.

15. Arrangement according to one of claims 1 to 14, characterized in that the drive devices (2, 7) each have a lockable ejection device (4) for ejecting the movable furniture part (3) from a closed position (SS) in an open position (OS) and a locking device (5) for locking the ejection device (4) in a locking position (VS), wherein by a pushing movement of the movable furniture part (3) in a behind the closed position (SS) overpressure position (ÜS) the ejection device (4) from the Locking position (VS) can be unlocked.

16. Arrangement according to one of claims 1 to 15, characterized in that the drive devices (2, 7) are formed substantially mirror-symmetrical to each other.

17. Furniture (18) with a furniture body (19), a furniture body (19) movable furniture part (3) and an assembly (1) according to one of claims 1 to 16.

18. Furniture according to claim 17, characterized in that the drive devices (2, 7) of the arrangement (1) on opposite sides of the movable furniture part (3) are arranged.

19. Furniture according to claim 17 or 18, characterized in that the drive devices (2, 7) are mounted on the movable furniture part (3) or on a drawer rail (64).