CN115702725A - Device with furniture part and furniture - Google Patents

Abstract

A device and a piece of furniture are proposed with a furniture part having a force accumulator and an ejector so that with the device the furniture part can be moved in the opening direction after unlocking the loaded force accumulator, the ejector being connected to the furniture part kinematic coupling, whereby the force accumulator can be loaded as the ejector moves back in the closing direction, a synchronization mechanism of the device is provided, which is provided with another corresponding one provided on the furniture for moving the furniture part in the opening direction The synchronization mechanism of the device can be coupled. According to the invention, the synchronizing mechanism can be reversibly transposed in the opening direction and in the closing direction. After the loaded force accumulator is unlocked, the synchronizing mechanism moves, and the synchronizing part for synchronizing can be moved, in order to return the synchronizing mechanism to the starting position position, a stop can be provided for the kinematic coupling between the ejector and the synchronizing mechanism, so that when the force accumulator is charged again, coupled with the movement of the ejector, the synchronizing mechanism is brought to the starting position.

Description

Fittings and furniture with furniture parts

Background technique

Devices are known for moving movable furniture parts, in particular devices for guided moving of movable furniture parts, for example fastened to a guide or to the relevant piece of furniture. Known devices generally comprise a force accumulator with which the movable furniture part is supported during the opening and/or closing movement relative to the furniture body. In order to eject the furniture part from the closed position in the opening direction, the device is first triggered from the ready position with the force store loaded in order to activate the force store.

Contents of the invention

The object of the present invention is to improve a device for assisted displacement of a movable furniture part by means of a force store, in particular with regard to the reliable setting of the ready position of the device.

This object is achieved by the independent claims.

Advantageous and advantageous variants of the invention are indicated in the dependent claims.

The invention is based on a device for moving a furniture part in an opening direction relative to a furniture body of a piece of furniture, wherein the furniture part is displaceable by guides in the opening direction and in a closing direction opposite to the opening direction. The device is in particular an ejection device, for example a drawer or door or flap ejector, which has a snap-lock function for a drawer or a furniture flap. The guide is preferably a known track guide, which is designed as a partial or full extension, or a flap fitting or a door fitting. The device may be functionally coupled with or include an automatic retraction mechanism for softly or softly retracting a furniture part or drawer, door or flap or door into a drawer or flap in a damped, force-assisted The closed position of a panel or door.

The device has a force accumulator that can be loaded and an ejector that can be driven in the opening direction under the action of the unloading (entladenden) force accumulator, wherein the force accumulator is lockable in the loaded state, so that with the installation Device on furniture, after unlocking of the loaded force accumulator, the furniture part can be moved from the closed position on the furniture body in the opening direction, wherein the ejector is kinematically coupled to the furniture part, wherein, with the ejector in the closing direction Moving back in the direction, the accumulator can be loaded, wherein a synchronization mechanism of the device is provided, in order to synchronize the unlocking of the loaded accumulator of the device with another corresponding device provided on the furniture The synchronization mechanism can be coupled for moving furniture parts in the opening direction. The synchronization relates in particular to the latching function on comparatively wide furniture parts on which there are two identical ejectors spaced apart in the width direction. The two devices work together when ejecting the furniture part, wherein their force accumulators together provide a cumulative total ejection force acting on the furniture part. Not activating both devices together would result in the force of only one of the two force accumulators being used for ejection. Especially in the case of a full load of furniture parts, this can mean that no furniture parts are ejected.

The essence of the invention is that the synchronizing mechanism of the device can be reversibly shifted in the opening direction and in the closing direction, wherein, after unlocking of the charged force accumulator, the synchronizing mechanism is moved from the starting position in the opening direction to the transposing position, so that The synchronization part for synchronization is movable, wherein, in order to return the synchronization mechanism to the starting position, stops are provided, with which a movement can be established between the ejector (Auswerfer) and the synchronization mechanism in the closing direction Coupling, so that when the force accumulator is loaded again, coupled with the movement of the ejector in the closing direction, the synchronous mechanism is driven from the transposition position or from a position between the transposition position and the starting position in the closing direction to the starting position Location.

As a result, the mechanical stop function advantageously brings the synchronization mechanism back into the starting position in a reliable and positively controlled manner if the synchronization mechanism has not yet reached the starting position. In this case, the ejector moves in the closing direction and loads the force accumulator. This is the case when the furniture part is closed. In this case, when the furniture part is closed, the ejector is likewise moved in the closing direction, for example mechanically coupled firmly to the closing furniture part, and thus also acts on the force store. Preferably, the part of the device that is kinematically coupled to the ejector, for example when closing the furniture part, brings the synchronization mechanism, for example, into a starting position. It may also be the case that when a pulling force acts on the synchronizing part in the closing direction, it is only necessary to entrain the synchronizing mechanism briefly by the stop, which is then sufficient to cause the remaining movement to the starting position. Thus, for the next push-out movement, the furniture part is closed, the force accumulator is charged, and the synchronization mechanism is in its starting position required for synchronization.

In particular, the invention solves the problem that, for example due to component tolerances, material changes or other influences, the movement of the synchronizing mechanism back from the shifting position to the starting position does not take place or is not completed, despite the presence of, for example, a return component such as a return spring. Retraction force. This can occur, for example, when there is an excessive frictional effect acting on the movement of the synchronizing mechanism in a braking or holding manner. For the unclamping impact for movement, generally only relatively weak forces are required, for example by entraining the ejector, in order to bring the synchronization mechanism out of its rest position, eg caused by static friction, thereby bringing the synchronization mechanism to the starting position.

Advantageously, a reset element is provided which acts on the synchronization mechanism and provides a restoring force in order to bring the synchronization mechanism into the starting position. The restoring element provides a preferably permanently established restoring force on the synchronization mechanism in the direction of the starting position. The restoring element is preferably a restoring force store or a tension element, such as a tension spring, for example a helical spring, which acts prestressed or pullingly in the closing direction on the synchronization mechanism. Since the restoring force is designed to be relatively weak relative to the force accumulator for the ejection movement of the furniture part, this restoring force must be overcome by the force accumulator during the ejection process in order to eject the furniture part and should therefore form an The ejection force may be countered by a small force component, it usually or spontaneously happens that the restoring force is insufficient or not always sufficient to pull the synchronization mechanism back to the starting position due to, for example, friction forces on the synchronization mechanism. Thus, at the latest when the furniture part, and thus the ejector, is moved in the closing direction, the synchronization mechanism is forcibly brought into the starting position by means of the stop. Usually, after the first pressure impact, for example, the ejector acts on the synchronizing mechanism by means of a stop, thereby in particular overcoming the static friction effect, so that the restoring force provided by the restoring element is then sufficient to synchronize the The mechanism moves to the starting position. Otherwise, the stop would act accordingly, eg even at the same time too high a frictional resistance would have a braking effect on the movement of the synchronization mechanism to the starting position.

A permanent connection is preferably established between the reset member and the synchronization mechanism. In this way, in addition to the stop element, when the furniture part is closed, the reset element also acts in order to bring the synchronization mechanism into the starting position. For example, an effective restoring force can be transmitted to the synchronization mechanism.

The reset part is advantageously designed to exert a pulling force on the synchronizing mechanism in the closing direction. As a result, a force can be reliably applied to reset the synchronization mechanism, for example using a slightly pretensioned helical tension spring. The level of the pulling force is lower than the level of the ejection force of the force store acting in the opening direction, preferably many times lower. The pulling force preferably acts permanently on the synchronization mechanism in the closing direction.

Another advantage is that the stop comprises a stop surface on the synchronizing mechanism which comes into contact with a mating stop surface when the ejector moves in the closing direction. Due to the stop surfaces, which are suitably matched to one another, two-dimensional contact can be achieved when the force accumulator is loaded, for mechanically coupled or secure driving of the synchronizing mechanism in the closing direction. The stop surface and the mating stop surface are preferably perpendicular to the direction of movement of the synchronization mechanism.

It is also advantageous if the stop has a protruding projection on the outer contour of the moving part, which can be coupled with the ejector. The projection can be configured in a simple and space-saving manner. The projection has, for example, stop surfaces transversely and perpendicularly to the direction of movement of the synchronization mechanism.

An advantageous variant of the invention is that the force accumulator acts on an ejector (Ausstoβer), which is displaceable in the closing direction and in the opening direction, and which is unlocked after the loaded force accumulator Drive the ejector in the opening direction. Thus, the movement of the ejector takes place according to the distance required for loading and unloading the force accumulator. In contrast, the ejector can be moved over a greater movement distance, in particular in the opening direction, in order to move the furniture part further in the opening direction, for example after deloading the force store. A special ejector force store can act on the ejector, for example in order to exert a pulling force acting in the opening direction on the ejector.

The ejector acts in particular between the ejector and the furniture part.

Advantageously, there is an at least temporary kinematic coupling between the ejector and the ejector in the closing direction for charging the force store and in the opening direction for force-assisted ejection of the furniture part in the opening direction.

Another advantageous variant results when the stop is formed between the ejector and the synchronization mechanism. In this way, the path length in the closing direction and/or the timing of the start and end of the active stop can be variably set or determined.

Usually or preferably, the force accumulator, ie the force accumulator for ejection, has a bearing point positioned on the device and a bearing point acting on the ejector. Other stops than the stop on the synchronization mechanism are preferably present on the ejector. Viewed in the longitudinal direction of the ejector or in the direction of movement of the ejector, the stop on the ejector is preferably present on the end section of the ejector facing the position of the force accumulator fixed support point.

Alternatively, a stop is configured between the ejector and the synchronization mechanism.

Another advantageous development is that, for the synchronization, an elongated connecting part is connected to the synchronizing mechanism, so that a movement of the synchronizing mechanism in the opening direction causes a rotational movement of the connecting part in the first rotational direction. The linear motion of the synchronous mechanism is converted into the rotary motion of the connecting parts through suitable transmission parts. The connecting part is preferably connected with its opposite ends in a kinematically coupled manner to one of the two synchronization mechanisms. Here, the connecting part spans the space between the two devices on the piece of furniture. In this way, when the ejector is moved, the preferably linear movement of the synchronizing mechanism, which is carried out by the synchronizing mechanism, in order to unlock the loaded force accumulator, is reliably transferable via the rotating connecting part to the on-board furniture part. Another or other and correspond to the corresponding synchronization mechanism on the device of the device. A rotation of the connecting part leads to a linear movement of the other synchronization mechanism in the opening direction and thus to a simultaneous unlocking of the other force accumulator on the other device. Both force accumulators then jointly and synchronously generate their force action on the furniture part in the opening direction accordingly. As a result, the furniture part is reliably ejected under the cumulative force of the two force accumulators. Synchronized motion transmission with inherently rigid connecting parts precludes actuation latching when pressing furniture parts in the actuation or access area of only one device, which would otherwise usually mean that the other device is not actuated or the other force accumulator is not unlocked .

A movement of the synchromesh in the closing direction results in a rotational movement of the connecting part in the second rotational direction, as is the case, for example, when resetting the synchromesh in the closing direction. This also advantageously synchronizes the force action of the restoring element or the entrainment movement performed by the synchronizing slide via the stop.

Advantageously, the device has a snap-lock function for unlocking the charged force store. This is a proven and user-friendly design. Advantageously, no grips are required on the outside of the furniture part for pulling to open the furniture part, since in the case of the latch function a pressing operation of the furniture part from the outside is sufficient to trigger and unlock the ejection force accumulator and subsequently close the furniture.

The invention is also realized as furniture having a furniture body and a furniture part which is movable relative to the furniture body via guides, wherein a device according to any of the above designs is present.

If the guide is configured as a hinge, for example a flap fitting or a door hinge, the piece of furniture is a drawer piece of furniture or a piece of furniture with pivotable flaps or doors.

Description of drawings

Further features and advantages of the invention are explained in more detail with the aid of an exemplary embodiment shown schematically in the drawing. specifically:

Fig. 1 shows furniture stereoscopically from obliquely above, wherein a drawer is in a fully opened state on the furniture body, and two devices according to the present invention are arranged on the furniture,

Figure 2 is an exploded view of the device of the present invention,

Fig. 3 is a perspective view obliquely above the substrate of the device according to Fig. 2,

Figure 4 is a perspective view obliquely from above of the latch member of the device according to Figure 2,

Figure 5 is a perspective view obliquely below the ejector of the device according to Figure 2,

Figure 6 is a plan view of a device according to the invention in a closed position without a cover,

Figure 7 is an oblique upper perspective view of the device with the control cover according to Figure 6 in the closed position,

Figure 8 shows an enlarged part A of Figure 7,

Figure 9 shows the device without a cover in a first open position,

Fig. 10 is an oblique upper perspective view of the device in the first open position according to Fig. 9,

Figure 11 shows an enlarged part B of Figure 10,

Figure 12 shows a plan view of the device according to the invention in a second open position,

Fig. 13 is an oblique upper perspective view of the device in the second open position according to Fig. 12,

Figure 14 shows a side view of a cross-section of the device according to Figure 13,

Figure 15 shows an enlarged part of Figure 6,

Figure 16 shows a plan view of the device according to the invention with the synchronization mechanism driven by the stopper, and

FIG. 17 shows an enlarged detail of FIG. 16 .

Detailed ways

FIG. 1 shows a piece of furniture 50 with a box-shaped furniture body 51 and a drawer 53 which is movably guided by a guide 52 . The drawer 53 includes a drawer bottom 54 , a drawer front 55 , two opposing side walls 56 and a drawer rear wall 57 .

In order to guide the drawer 53 there are respectively two guides 52 having the same effect between each side wall 56 of the drawer 53 and the associated body side wall 58 . Arranged on the underside of the drawer bottom 54 are two identical devices 1 , 2 according to the invention (shown in dashed lines), which together and synchronously serve to move or eject the furniture part designed as the drawer 53 in the opening direction M1.

The device 1 is used to eject the drawer 53 force-assisted relative to the furniture body 51 from the closed position along a partial distance of the opening movement of the drawer 53 in the opening direction M1 of the drawer 53 . The drawer 53 can be movably arranged on the furniture body 51 in the opening direction M1 and in the opposite closing direction M2 by means of guides 52 , eg two identical partial or full extensions. The device 1 can alternatively be arranged on the furniture body 51 or on the guide 52 of the piece of furniture 50 .

The same applies to device 2 , in particular reference is made below to device 1 .

The device comprises a base plate 3 , a force unit 4 , a latch member 5 , an ejector 6 and a force accumulator 7 (see FIG. 2 ) as basic main components. Guide rails 8 are formed in base plate 3 . Also provided in the base plate 3 is a recess 9 for receiving a moving part 10 on which the force accumulator 7 preferably acts. The moving part 10 may also be called an ejector. The force accumulator 7 comprises at least exactly one helical spring 11 , preferably two helical springs 11 , 12 which can each be used individually, each of which is fastened with one end to the mobile part 10 . The other end of the helical springs 11 , 12 is advantageously connected to the support part 13 , wherein the length and thus the pretension of the tensioned helical springs 11 , 12 can be adjusted via the operating section 14 . Arranged on the moving part 10 is a spring rod 15 which is guided with a curved end section preferably in a heart-shaped curve 16 formed in the base plate 3 . Furthermore, the elastic rod 15 can move along the guide slot 17 of the ejector 6 . During the movement of the elastic rod 15 along the guide slot 17 in the ejector 6 and/or the heart-shaped curve 16 in the base plate 3 , the synchronization mechanism designed as a synchronization plate 18 moves together. The synchronization plate 18 is linearly movable in directions P1 and P2. The synchronization plate 18 is connected to the base plate 3 through a spring 19 . When the synchronization plate 18 is moved, the synchronization part 18a is in a rotation D1, the direction of rotation being dependent on the movement of the synchronization plate 18 in the direction P1 or P2. The other end of the synchronization element 18 a, not shown in FIGS. 15-17 , is connected to the other device 2 or to the synchronization plate 18 of the device 2 , respectively.

The base plate 3 is covered by a cover part 20, wherein the cover part 20 forms a mating plate almost corresponding to the base plate 3, so that the interior of the device 1 is closed on both sides and on the peripheral narrow side, wherein the individual areas are open to the outside.

The cover member 20 has a control cover 21 which is formed in two parts or formed integrally with each other. The control cover 21 preferably has a further heart-shaped curve (not shown) which in the assembled state preferably provides a guide for the other angled end of the elastic rod 15 in the base plate 3 corresponding to the heart-shaped curve 16 . A reliable guidance of the spring rod end of the spring rod 15 on both sides is thereby achieved.

Guide rails 8 are designed in the bottom plate 3 in order to move the latch member 5 along the guide rails 8 . The guide rail 8 preferably has two separately designed guide rails 8 in the width direction of the base plate, which is oriented perpendicular to the opening and closing movement of the ejector 6 . The guide rail 8 can be divided into two guide areas 22 , 23 , preferably into exactly two guide areas. The first guide region 22 is formed in the base plate 3 so as to be sunken relative to the plane side of the ejector 6 . The second guide area 23 preferably extends in the opening direction P1 and the closing direction P2 of the ejector 6 . The direction P1 is related to the direction M1 and the direction P2 is related to the direction M2.

Two guide areas 22 , 23 oriented at an angle to one another form together, for example, an L-shape, wherein the longer leg forms the second guide area 23 and the shorter leg forms the first guide area 22 .

The receptacle for the second end of the force unit 4 in the base plate 3 can be seen in FIG. 3 . The first end of the force unit 4 is connected to the connection section 24 of the latching component 5 (see FIG. 4 ). The latch member 5 also has a guide mechanism 25 which is preferably permanently movable in the second guide region 23 of the guide rail 8 . The guide mechanism 25 protrudes at the latch member 5 and is preferably in the form of a cylinder or a bolt. There are preferably guide means 25 on both sides of the latch member 5 which are displaceable along widthwise spaced guide rails 8 . Advantageously, the guide mechanism 25 can be moved supported along the second guide region 23 of the guide rail 8 . The latch member 5 also has a guide part 26 which moves from the first guide area 22 into the second guide area 23 during the opening movement of the ejector 6 . As a result, the hook section 27 of the latch member 5 located above the guide part 26 in the direction of the ejector 6 can pivot in the direction of the ejector 6 . The latch member 5 also has a hook-shaped profile 28 capable of interacting with the ejector 6 . The hook profile 28 is preferably oriented transversely to the opening and closing direction of the ejector 6 .

The ejector 6 has a recess 29 (see FIG. 5 ) on the underside pointing towards the base plate 3 . The recess 29 is preferably groove-shaped, wherein the longitudinal extension L of the recess 29 is directed in the opening and closing direction of the ejector 6 . The connection section 24 of the latching member 5 is preferably accommodated in the recess 29 . The recess 29 has a surface formed in width direction and height with an edge profile 30 which can be coupled and decoupled with the hook profile 28 of the latch member 5 .

A stop element 31 is formed on the ejector 6 , which interacts with the drawer 53 or the drawer rail of the guide 52 . After unlocking of the loaded force accumulator 7 that remains locked, the ejector 6 is moved in the opening movement of the moving part 10 and passes the stop part 31 with the loaded force unit 4 and/or the stored force The force of the device 7 causes the drawer 53 to move in the opening direction P1. During the closing movement P2, the drawer 53 or a section of the drawer rail is pressed against the stop part 31 of the ejector 6, thereby loading the moving part 10 or the ejector and thus the accumulator acting on the ejector. Force device 7 and force unit 4.

In Figure 6, the device is shown in the closed position. For the sake of clarity, the cover part 20 is not shown in FIGS. 6 to 8 . In addition, the control cover 21 is not shown in FIG. 6 . In FIGS. 7 , 8 , 10 , 11 , 13 and 14 , the ejector 6 and the latch member 5 are only partially shown in order to better observe the arrangement of the latch member 5 in the guide rail 8 .

As can be seen from FIGS. 6 to 8 , the latch member 5 is covered from above by the ejector 6 in the closed position. The connecting section 24 of the latching member 5 is received in the recess 29 of the ejector 6 , wherein the edge contour 30 of the recess 29 does not interact with the hook contour 28 of the latching member 5 . The guide part 26 of the latch member 5 in the closed position is in the first guide region 22 so that the force unit 4 is maximally tensioned. The guide mechanism 25 is supported on the guide rail 8 of the second guide region 23 .

The elastic rod 15 is arranged in the arcuate section of the heart-shaped curve 16 , wherein a movement of the elastic rod 15 in the opening direction P1 is not possible because this movement is blocked by a synchronization plate 18 (see FIG. 6 ). The device 1 has reached the zero position and the drawer 53 rests against the furniture body 51 in the closed position.

The drawer 53 is opened or ejected intentionally by the user from the outside, the user uses the touch lock function, and pushes the drawer 53 or the drawer front 55 of the drawer 53 inwardly along the closing direction M2, thereby making the ejector 6 follow the moving part 10 Move in closing direction P2. By moving the part 10 , the elastic rod 15 is also moved in the closing direction P2 , whereby the elastic rod 15 is no longer blocked by the synchronizing plate 18 . The spring end surrounds the end face of the synchronizing plate 18 , which is now displaceable in the opening direction P1 . The force accumulator 7 is thus unloaded and the elastic rod 15 is moved in the opening direction P1 along the heart-shaped curve and the flanks on the synchronizing plate 18 . When the elastic rod 15 moves along the opening direction P1, the synchronizing plate 18 and the ejector 6 also move along the opening direction P1. The drawer 53 is driven or ejected. The first open position is then reached (see Figure 9). In the first open position, the force accumulator 7 is unloaded.

In FIGS. 10 and 11 , the guide part 26 of the latch member 5 is still in the first guide region 22 of the guide rail 8 , so that the hook section 27 has not yet been deflected in the direction of the ejector 6 . By bringing the edge profile 30 of the recess into the hook profile 28 of the latch member 5 , the latch member 5 is moved in the opening direction P1 whereby the guide part 26 is moved along the guide rail 8 into the second guide region 23 . The latching member 5 can pivot about a guide mechanism 25 which rests on the guide rail 8 in the second guide region 23 . When the latching member 5 is pivoted, the hook section 27 can be deflected upwards in the direction of the ejector 6 , wherein the hook section 27 hooks barbed against the end contour 32 of the ejector 6 . The force unit 4 can be unloaded as soon as the guide part 26 of the latching member 5 has reached the second guide region 23 of the guide rail 8 . This causes the latch member 5 to move in the opening direction P1. Since the hook section 27 of the latch member 5 hooks the ejector 6, the ejector 6 also moves in the opening direction P1 until reaching the second open position (see Figs. 12-14). The drawer 53 is moved in the opening direction P1 by the stop part 31 of the ejector 6 .

In the second open position, the force unit 4 is unloaded. It can be seen in FIG. 14 that the edge contour 30 of the recess 29 rests on the hook contour 28 of the latching component 5 . Furthermore, a guide 25 and a guide part 26 are located in the second guide region 23 of the guide rail 8 , wherein the guide 25 is spaced horizontally from the guide part 26 . The guide mechanism 25 is further forward in the opening direction P1 than the guide member 26 .

During the opening movement from the first opening position (see FIG. 9 ) to the second opening position (see FIG. 12 ), the elastic rod 15 first moves along the first linear region 33 of the guide slot 17 of the ejector 6 . The elastic rod 15 is fixedly arranged according to the position on the heart-shaped curve portion 16 . With a further movement in the opening direction P1 , the elastic rod 15 moves to the right or in the direction of the force unit 4 through the lateral region 34 of the guide slot 17 and then along the second linear region 35 . The elastic rod 15 thus reaches the right-hand section of the heart-shaped curve 16 (see FIG. 12 ), and the synchronization plate 18 can be pulled back to the starting position by the spring 19 .

During the closing movement of the ejector 6 in the closing direction P2, i.e. in particular when the drawer is pushed up and closed by the user and the drawer brings the ejector 6 along in the closing direction P2, the automatic retraction mechanism, if necessary, provides force-working damping. Auxiliary, the elastic rod 15 is first moved along the second rectilinear region 35 of the guide slide 17 until the elastic rod 15 abuts on the transition between the second rectilinear region 35 and the lateral region 34 . When the elastic rod 15 abuts against the transition, then during a further closing movement of the ejector 6, the elastic rod 15 and thus also the moving part 10 can be moved in the closing direction P2 by means of the force accumulator 7, wherein the accumulator The force device 7 is loaded. Here, the elastic rod 15 is guided along a section 36 running straight on the right side of the heart-shaped curve 16 up to the end of this section 36 , and then the elastic rod 15 follows the heart-shaped curve 16 and in the direction of the spring 19 direction to move to the left. The spring rod 15 thus also reaches the first straight region 33 of the guide link 17 . The elastic rod 15 is locked in the heart-shaped curve 16 , whereby during a further closing movement of the ejector 6 the elastic rod 15 moves along the first linear region 33 . During a further closing movement of the ejector 6, the closed position is reached (see FIG. 6).

When the ejector 6 is moved in the closing direction P2 , the force unit 4 is directly acted upon by the hook section 27 resting against the end contour 32 of the ejector 6 . Here, the guide mechanism 25 and the guide part 26 can be moved along the second guide region 23 of the guide rail 8 until the guide part 26 reaches the first guide region 22 and pivots downwards. As a result, the hook section 27 of the latching member 5 no longer bears against the end contour 32 of the ejector 6 , so that the ejector 6 can be moved relative to the latching member 5 in the closing direction. In this case, the connecting section 24 of the latching member 5 is moved along the recess 29 of the ejector 6 . If the synchronizing plate 18 is not pulled in the closing direction P2 by the tensioned spring 19 , when the force accumulator 7 is charged, the stop on the moving part 10 comes into contact with the mating stop on the synchronizing plate 18 . This returns the synchronization plate 18 to its starting position.

FIG. 15 shows that there is a stop 37 which has a stop surface 38 on the moving part 10 or the ejector and a stop surface 39 on the synchronization plate 18 . According to FIG. 15 , the two stop surfaces 38 and 39 are separated or spaced apart from each other by a few millimeters in the direction of movement of the displacement element 10 or in the direction P1 or P2 . This is because the synchronization plate 18 is retracted in the starting position due to the active tension spring force of the spring 19 and is ready for the synchronization process.

The stop 37 has a protruding lug 10 a on the outer contour of the mobile part 10 which can be coupled with the ejector 6 .

The synchronizing plate 18, which can reciprocate in the directions P1 and P2, moves to the starting position according to FIG. 15 under the action of the tension F1 (see FIG. 15 ) acting on the synchronizing plate 18 in the direction P2 by a spring 19, for example a helical spring.

16 and 17 show the entrainment between the stop surfaces 38 and 39 when the synchronizing plate 18 is still in the shifted position despite the spring 19, ie remains in this shifted position after the synchronous movement or is blocked. contacts, as shown in Figures 16 and 17. This can occur, for example, due to frictional effects, if the force of the spring 19 is not sufficient, for example due to static friction, to restore the synchronization plate 18 from the shifted position shown in FIGS. 16 , 17 to the starting position. When the drawer 53 is closed and thus causes the ejector 6 to move and the moving part 10 to move in direction P2, the moving part 10 brings the synchronizing plate 18 with it up to the starting position. Here, the stop surface 38 presses against the stop surface 39 and pushes the synchronizing plate 18 in the direction P2. The synchronization plate 18 is forcibly returned to the starting position with the aid of the force F1.

Thereafter, with the drawer still closed, the synchronization plate 18 is in the starting position. During the next actuation of the closed drawer, the synchronizing plate 18 can then be entrained with the unlocked force store 7 via the click-lock function.

Without the stop 37 it cannot be reliably ruled out that the synchronization plate 18 remains in the shifted position and no synchronization occurs during the next latching operation.

list of reference signs

1 device

2 devices

3 Substrate

4 force units

5 Latch member

6 ejector

7 accumulator

8 rails

9 concave

10 moving parts

10a Protrusion

11 coil spring

12 coil spring

13 Support section

14 Operating section

15 elastic rod

16 heart-shaped curve

17 Guide chute

18 sync board

18a Synchronization unit

19 springs

20 cover parts

21 control cover

22 boot area

23 boot area

24 Connecting Sections

25 guide mechanism

26 Guide parts

27 hook section

28 hook profile

29 concave

30 edge profile

31 Stop part

32 end profile

33 areas

34 areas

35 areas

36 segments

37 Stop

38 Stop surface

39 Stop surface

50 furniture

51 furniture body

52 guide

53 drawers

54 drawer bottom

55 Drawer front

56 side wall

57 Drawer rear wall

58 Body side wall.

Claims (10)

1. A device (1, 2) for moving a furniture part (53) in an opening direction relative to a furniture body (51) of a piece of furniture (50), wherein the furniture part (53) can be moved by means of a guide (52) in the opening direction and a closing direction opposite to the opening direction, wherein the device (1, 2) has a loadable force accumulator (7) and an ejector (6) which can be driven in the opening direction under the action of the force accumulator (7) which carries out a load withdrawal, wherein the force accumulator (7) can be locked in the loaded state such that, with the device (1, 2) mounted on the piece of furniture (50), after unlocking of the loaded force accumulator (7), the furniture part (53) can be moved in the opening direction from a closed position on the furniture body (51), wherein the ejector (6) is coupled in motion with the furniture part (53), wherein, as the ejector (6) is moved back in the closing direction, the force accumulator (7) can be loaded into the device (1, wherein the device (7) is arranged such that the device (1, 2) can be synchronously moved in the opening direction with the device (1, 53) so that the device (1, 2) can be loaded in synchronization with the device (1, the device (7) so as to unlock the device (1, 18) is arranged in the device (2) is moved back in the closing direction, wherein the device (1, and the device (7) is arranged in synchronization, 2) Is coupled, characterized in that a synchronization mechanism (18) of the device (1, 2) is reversibly shiftable in the opening direction and in the closing direction, wherein, after the loaded force accumulator (7) is unlocked, the synchronization mechanism (18) is moved from a starting position in the opening direction into a shifted position, so that a synchronization member (18 a) for synchronization can be moved, wherein, in order to return the synchronization mechanism (18) to the starting position, a stop (37) is provided, with which a kinematic coupling can be established in the closing direction between the ejector (6) and the synchronization mechanism (18), so that, when the force accumulator (7) is loaded again, the synchronization mechanism (18) is brought from the shifted position or from a position between the shifted position and the starting position in the closing direction into the starting position in a manner coupled with the movement of the ejector (6) in the closing direction.

2. Device according to claim 1, characterized in that a reset member (19) is provided, which acts on the synchronization mechanism (18) and provides a reset force in order to bring the synchronization mechanism (18) into the starting position.

3. Device according to claim 1 or 2, characterized in that the resetting means (19) are designed to exert a pulling force on the synchronizing mechanism (18) in the closing direction.

4. Device according to any one of the preceding claims, characterized in that the stop (37) comprises a stop surface (39) on the synchronizing mechanism (18) which comes into contact with a cooperating stop surface (38) when the ejector (6) is moved in the closing direction.

5. Device according to any one of the preceding claims, characterized in that the stop (37) has a projecting lug (10 a) on the outer contour of a moving part (10) that can be coupled with the ejector (6).

6. Device according to one of the preceding claims, characterized in that the energy store (7) acts on an ejector (10) which is displaceable in a closing direction and in an opening direction and which, after the loaded energy store (7) has been unlocked, carries the ejector (6) in the opening direction.

7. Device according to any one of the preceding claims, characterized in that the stop (37) is configured between the ejector (10) and the synchronization mechanism (18).

8. Device according to any one of the preceding claims, characterized in that for synchronization an elongated connecting part (18 a) is connected with the synchronization mechanism (18) such that a movement of the synchronization mechanism (18) in the opening direction causes a rotational movement of the connecting part (18 a) in a first rotational direction.

9. Device according to one of the preceding claims, characterized in that the device (1, 2) has a touch-lock function for unlocking the loaded accumulator (7).

10. A piece of furniture (50) having a furniture body (51) and a furniture part (53) which can be moved relative to the furniture body (51) by means of a guide (52), wherein a device (1, 2) according to any one of the preceding claims is present.

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