EP4124714A1 - Ejection device for a folding door - Google Patents

Abstract

Ejection device (1) for a folding door (3) movably arranged on a furniture body (40), the folding door (3) comprising at least a first door leaf (3a) and a second door leaf (3b), the door leaves (3a, 3b) being articulated with one another are connected, the ejection device (1) has at least one ejection element (5) for opening the folding door (3) from a closed position, in which the at least two door leaves (3a, 3b) are arranged in a common closing plane (E), into an open position, in which the at least two door leaves (3a, 3b) enclose an angle other than 180° to one another, the ejection device (1) has at least one first fitting part (1a) for mounting the ejection device (1) on the first door leaf (3a) and the at least one ejector element (5) is supported on the at least one first fitting part (1a), the at least one ejector element (5) for moving the second door leaf (3b) from the closed position into the open position is formed by at least one scissor mechanism (10), the scissor mechanism (10) having at least two scissor levers (10a, 10b) and being foldable via an articulated connection between the first and the second door leaf (3a, 3b), the articulated connection is formed by at least one intermediate lever (11) and the intermediate lever (11) is articulated to the first scissor-type lever (10a) and/or the second scissor-type lever (10b), the ejection device (1) having a second fitting part (1b), wherein the first scissor-type lever (10a) is movably mounted at a first end (E1) along a guide device (12) on the first fitting part (1a), and a second end (E2) of the first scissor-type lever (10a) is articulated to the second fitting part (1b). is.

Description

The invention relates to an ejection device having the features of the preamble of claim 1.

Furthermore, a piece of furniture with the features of the preamble of claim 14 is to be specified.

Such ejection devices, or also called unfolding aids, are already known and are for example in Austrian patent application A 50049/2017 , the JP 2014 029 103 A , the JP 2012 001 916 A and the WO 2017 000006 A1 shown. These ejection devices are required as unfolding aids in order to move folding doors, which can also be designed as folding sliding doors, from their closed position into an open position. The user of the folding door or folding sliding door does not have to carry out the entire movement of the folding door or folding sliding door from the closed position into the open position himself. For example, by pushing the folding door or folding sliding door in the closed position in the direction of the furniture body behind it, the ejection device is activated and the folding door or folding sliding door is ejected from the closed position in the direction of the open position. The ejection device is thus regarded as an unfolding aid which is arranged between the door leaves. Since the ejection device is arranged in the non-visible area behind the door leaves, and the door leaves have to move from the closed position to the open position, only a small space is made available in which the ejection device is located can arrive. Since the door leaves, which are movable relative to one another, can be moved from a coplanar position (closed position) into a substantially parallel position (open position), and in this parallel position only little space is left between the door leaves arranged so as to be movable relative to one another, the prior art has to Pockets are incorporated into the door panels to accommodate the moving components of the ejector can when the ejector must compensate for the movement of the door panels between the open position and the closed position. The swiveling levers required for the unfolding aid, which move the door leaves towards one another, find enough space between the door leaves in the closed position. However, as soon as the door leaves move in the direction of the parallel position or are essentially in the parallel position, these pivoting levers must find their way into the limited space between the door leaves without colliding. In the event of a collision, a parallel position would not be possible. Thus, a compact arrangement of the door leaves guided into the open position would not be guaranteed either, in order to be able to lower them, for example, into a feed shaft. The necessary recesses in the door leaves for sinking the pivoted lever must be made at the required location using a manufacturing process such as milling or cutting out. This involves an additional operation and is reflected in an increased workload and higher production costs. In addition, the material thickness of the door leaf is weakened at the point of the cut-out, which could lead to damage at this point on the folding door over a longer period of time. Furthermore, the material thickness of the door leaf be sublime enough to be able to realize the bags at all; a thin-walled folding door can therefore not be used.

The object of the invention is to avoid the disadvantages described above and to specify an ejection device which is improved over the prior art.

Furthermore, a piece of furniture which is improved compared to the prior art and has such an ejection device is specified.

This is achieved with the ejection device according to the invention by features of the characterizing part of claim 1 and with the improved piece of furniture with the features of claim 14.

If the at least one ejector element for moving the second door leaf from the closed position into the open position is designed by at least one scissor mechanism, with the scissor mechanism being mounted in a collapsible manner between the first and the second door leaf, no recesses such as pockets or recesses in the door leaves are required. in order to provide the space required for moving into the closed position for the pivoting lever or other moving components of the ejection device. The scissor mechanism can independently compensate for the movements and folds itself between the door leaves. In this way, an ejection device is created which, in the parallel position (open position) of the door leaves, can be compactly accommodated between the door leaves which can be moved relative to one another. The construction of each Lever is independent of the dimensions of the door leaf. This means that thinner materials can also be used on the door leaves, for example, since the depressions in the door leaves are no longer necessary.

If the scissor mechanism is formed from at least a first scissor lever and a second scissor lever, with the first and second scissor lever being connected to one another - preferably in a central area - via an articulated connection, two scissor levers are available, which absorb the forces during opening and closing Closing the folding door can accommodate. In addition, it is achieved that, for example, a scissor lever can be driven, which can automatically bring about the movement of the second scissor lever. A compact drive system is generated in order to be able to support unfolding of the folding door. The resulting forces are also better distributed over several scissor levers, which leads to a more stable design of the system.

If the articulated connection is formed by at least one intermediate lever, a virtual pivot point is created on the scissor mechanism. The intermediate lever achieves an even more compact design with better power transmission than with a simple joint. Because the pivot point is virtual, it can move when opening and closing the folding door. It is provided that the intermediate lever is connected in an articulated manner to the first scissor-type lever and/or the second scissor-type lever. The articulated connection of the intermediate lever with the first and / or the second scissor lever is the force when opening and closing the Door leaf transferred via the articulated connection. Furthermore, the door leaves are positioned in relation to one another and are stably mounted.

If the first scissor-type lever is movably mounted at a first end along a guide device on the first fitting and a second end of the first lever is connected in an articulated manner to a second fitting part, the first scissor-type lever can move along the guide device when the folding door is opened and closed, which is reflected in reflected in a compact design. The guide device creates some of the degrees of freedom that the scissor mechanism requires in order to be able to fold it together when moving between the open and closed positions.

If the second scissor lever can be brought into contact by a contact section with a fitting on the cam arranged on the first, the contact section can move along the cam as soon as the scissor mechanism is in the corresponding position. Pivoting of the second scissor-type lever can be produced by the contact between the contact section and the cam, with the first scissor-type lever being able to be carried along due to the pivoting of the second scissor-type lever due to the articulated connection between the scissor-type levers. The control curve thus not only moves the scissor mechanism, but also offers the degrees of freedom that the scissor mechanism requires for folding and unfolding. Using the control curve, it is possible to position the door leaves in the desired position in relation to one another. The control curve thus defines the path of the scissor mechanism and also the path of the door leaves to one another.

It has been found to be an advantage that an energy accumulator arranged on the scissor mechanism supports the movement of the scissor mechanism as soon as the folding door is brought from the closed position into the open position. The force for moving the door leaf out of the closed position therefore no longer has to be applied by the user. This initiates the movement, for example by tapping the door or pressing against a certain position; however, the door leaves then open automatically to a certain extent.

Provision can be made for the folding door to move completely from the closed position into the open position, or only up to a certain range, so that the user can then open it completely. It can thus be the case that the folding door is moved, for example, only halfway between the closed position and the open position by the ejection device, and the rest of the way to the open position is carried out manually by the user. The energy store can be charged by manual actuation in order to be able to discharge it, for example, when the door is opened again.

If the force accumulator is arranged to act on the fitting between the first and the second scissor-type lever and/or between the first and/or second scissor-type lever and the intermediate lever, there is a direct introduction of force into the scissor-type mechanism. In addition, the lift mechanism is installed compactly, which is reflected in the space-saving design of the ejection device. In addition, the force is applied directly and not indirectly via other levers or anything else. There are other components avoided, the for example, can wear out or could be damaged. It can be provided that the energy accumulator is formed by a spring—preferably a compression spring.

If the contact section of the second scissors lever can be pressed against the control cam due to the action of the force accumulator, the contact section being movable along the control curve, the second scissors lever is moved against the control cam due to the introduction of force from the force accumulator. Through this movement and the contact with the first scissors-type lever, the scissors mechanism is forced to convert this introduction of force from the energy accumulator into a movement against the cam and against the first scissors-type lever. Conversely, a movement of the scissors mechanism against the control cam of the force accumulator is loaded in a certain operating position of the ejection device. The unloading and loading of the force accumulator thus takes place via the control cam and the contact of the contact section on the second scissor-type lever.

If the force accumulator is mounted on an end section of the second scissor-type lever and presses the - preferably displaceable - contact section movably mounted on the second scissor-type lever in a direction opposite to the end section, then the length of the second scissor-type lever is variable, which occurs when the length of the second scissor-type lever changes in one direction direct implementation of the movement of the scissors mechanism and results in unloading and loading of the energy store. If the length of the second scissor lever and/or the length of the force accumulator attached to the second scissor lever changes due to the When the energy store is relieved, the scissor mechanism is put into operation and a supporting movement of the door leaf out of the closed position is generated.

If the control cam has an opening section and a clamping section, with the contact section - preferably formed by a second scissor lever rotatably mounted rolling element - being movable along the opening section and the clamping section, the ejection movement of the scissor mechanism is activated via the contact section, which moves along the opening section of the control cam made, whereby the folding door is opened. If the folding door is moved further manually by the user, for example, the control cam moves into the tensioning section and charges the energy accumulator via the contact section for a further opening process.

It has turned out to be advantageous that a locking device is provided for locking the energy storage device, with the energy storage device being able to be tensioned by the interaction of the control cam and the contact section, and the energy storage device being locked in the tensioned state by the locking device, as a result of which the energy storage device can be prevented from being discharged . Thus, in connection with the relative position between the contact section and the control cam, the energy store can be discharged and charged. When charged, the energy store can be locked, which prevents the energy store from automatically discharging. The energy store can be triggered and discharged if this is done by the user is desired. Accidental discharging of the lift mechanism is impossible.

If a triggering device is provided, which unlocks the locking device in a triggering position, so that the force accumulator can be changed from the charged to the discharged state, the opening of the folding door is forced by this triggering device. This triggering device can be a connecting element, for example, which at least temporarily connects the ejection device to another component of the piece of furniture or the body of the piece of furniture as soon as the user presses against the folding door, for example. However, the trigger device can also be a push button or something comparable, which can be operated directly by the user. This makes it possible to covertly attach the triggering device to the piece of furniture. However, the triggering device can obviously also be arranged on the piece of furniture.

If the triggering device can be moved from a substantially coplanar position of the door leaves into the triggering position when the triggering device is pressed, it can be arranged in a concealed position on the piece of furniture. Pushing against the door leaves and over-pushing their coplanar position activates this trigger and forces the folding door open. This is also achieved in that the triggering device can be moved into the triggering position when the triggering device is pressed against the furniture body.

The concealed position of the triggering device is also achieved in that the at least one locking device can be unlocked when the ejection device is mounted by exerting pressure on the folding door, preferably in the area in which the door leaves are connected to one another in an articulated manner.

A piece of furniture with a furniture body, at least one folding door, which comprises at least two door leaves connected to one another by articulation, has proven to be advantageous, with the folding door or folding sliding door having at least one closed position in which the at least two door leaves are arranged in a common closing plane, and an open position in which the at least two door leaves enclose an angle other than 180° to one another, and at least one ejection device.

It is advantageous if the at least one ejection device is arranged on a side of one of the two door leaves that faces the body of the furniture. This results in a concealed design of the ejection device. This is not visible from the outside of the furniture.

Furthermore, it has proven to be advantageous that the furniture carcass has a feed shaft formed by a hollow space for receiving the at least one folding door in a folded retracted position. In this way, the folding door brought into the open position can be lowered to the side of the furniture body and does not protrude into the room. A space-saving piece of furniture is thus created, the folding door of which is always stowed away and does not get in the way.

Further details and advantages of the present invention are explained in more detail below on the basis of the description of the figures with reference to the exemplary embodiments illustrated in the drawings.

Fig. 1a

Möbel mit Einzugsschacht und Falttür,

Fig. 1b

Ausstoßvorrichtung an Falttür,

Fig. 2

Explosionsdarstellung Ausstoßvorrichtung,

Fig. 3a, 3b

Schließstellung der Falttür,

Fig. 4 - 7

unterschiedliche Ansichten und Stellungen der Ausstoßvorrichtung beim Entladen des zumindest einen Kraftspeichers und Verfahren in Richtung der Offenstellung,

Fig. 8 - 11

unterschiedliche Ansichten und Stellungen der Ausstoßvorrichtung beim Laden des zumindest einen Kraftspeichers und Verfahren in Richtung der Offenstellung, und

Fig. 12 - 15

unterschiedliche Ansichten und Stellungen der Ausstoßvorrichtung beim Zurückführen in Richtung der Schließstellung.

It shows:

Fig. 1a

Furniture with feed shaft and folding door,

Fig. 1b

ejection device on folding door,

2

Exploded view of ejection device,

Figures 3a, 3b

closed position of the folding door,

Figures 4 - 7

different views and positions of the ejection device when discharging the at least one energy accumulator and moving in the direction of the open position,

Figures 8 - 11

different views and positions of the ejection device when loading the at least one energy store and moving in the direction of the open position, and

12 - 15

different views and positions of the ejection device when it is returned towards the closed position.

Figure 1a shows the piece of furniture 100 with a feed shaft 33 arranged on the side of the piece of furniture 100, in which the folding door 3 can be stowed in the folded-up state of the door leaves 3a, 3b. The Figure 1a shows the closed position of the folding door 3. The folding door 3 can also be designed as a folding sliding door, as in FIG Figure 1a shown. For this purpose, this is at the top and / or bottom of the folding door 3 by a in the Figure 1a non-visible longitudinal guide attached. In addition to the ejection device 1 am Door gap between the door leaves 3a, 3b, hinges 50 are also arranged at the gap in order to enable pivoting of the door leaves 3a, 3b between an open position and a closed position. The feed shaft 33 is formed by the furniture body 40 or is arranged on the furniture body 40 . A non-visible part of the furniture body 40 runs parallel to the ejection device 1 in order to be able to make contact with the ejection device 1 if necessary. This component of the furniture body 40 can be a shelf, a cover plate or another component of the furniture body 40, for example.

Figure 1b shows the ejection device 1 from FIG Figure 1a in detail. The triggering device 17, which is movably arranged on the ejection device 1, comes into contact with a component of the furniture body 40 if necessary. To simplify the furniture body was 40 in the Figure 1b not drawn. The triggering device 17 is designed as a contact part, which when pressing the door leaf 3a, 3b from the in the Figure 1b shown, coplanar position against a component of the furniture body 40 with the furniture body 40 comes into contact and then triggers. Thus, the ejection device is activated and the movement of the door leaves 3a, 3b relative to each other begins. The ejection device 1 has a first fitting part 1a and a second fitting part 1b. The scissors mechanism 10 connects the first and the second fitting part 1a, 1b. When triggered by the triggering device 17, the scissor mechanism 10 is set in motion by at least one energy accumulator 14, which results in the door leaves 3a, 3b opening.

figure 2 shows an exploded view of the ejection device 1 consisting of a first fitting part 1a and a second fitting part 1b. The majority of the individual components are located on the first fitting part 1a. This comprises a base element 52 which is connected to the first door leaf 3a via fastening sections. This can be connected to the first door leaf 3a, for example, using screws or similar fastening means. For convenience, this is in the figure 2 not shown.

At least one guide device 12 is located on the base element 52 for receiving the guide elements 12b which are located on the first scissor-type lever 10a and are arranged on a first end E1 of the first scissor-type lever 10a. The second end E2 of this first scissors lever 10a is connected to the second fitting part 1b. The guide elements 12b are rotatably connected to the first scissor lever via a pin 12a and can be moved longitudinally along the guide device 12 on the base element 52 .

The first scissor-type lever 10a is connected to the second scissor-type lever 10b via at least one intermediate lever 11 . The second scissor lever has a contact section 15 which can be brought into contact with the cam 13 on the base element 52 . Thus, the contact section 15 is supported—designed as a rolling body—on the cam 13 at least temporarily. At the opposite end of the second scissors-type lever 10b is the bearing 53a, which is mounted on at least one force accumulator 14 on the second scissors-type lever 10b via a bolt 53b. The force accumulators 14 act against a carriage 55 via a displacement device 54.

The carriage 55 is also used to hold the contact section 15. If the contact section 15 is moved by the control cam 13, these movements are transmitted through the carriage 55 to the energy store 14 and vice versa. The locking device 16 is provided for locking the carriage 55 . This is rotatably mounted on the second scissor lever 10b via the bolt 53b. The locking device 16 is triggered or released via the triggering device 17, which is also movably mounted on the second scissor-type lever 10b. In this case, a corresponding depression 55b on the locking device 16 is brought into connection via a projection 55a.

A push-through protection 60, which is in operative connection with a control device 61, prevents the ejection device 1 from being triggered prematurely. If, for example, the opening process from the closed position to the open position is interrupted by the user and the folding door 3 is pushed back into the coplanar position, the folding door 3 could be ejected again. This is prevented by the push-through protection 60 and the control device 61 . The push-through protection is connected to the carriage 55 and releases it only as soon as the door should open properly.

Figure 3a shows the closed position of the folding door 3, wherein the door leaves 3a, 3b are in a coplanar position with respect to one another. The energy store 14 located behind the locking device 16 is tensioned. The triggering device 17 is spaced apart relative to the furniture body 40 . Thus, the locking device is also 16 in the locked state. The force accumulator 14 cannot discharge itself. Thus, the contact section 15 of the second scissors-type lever 10b is also located at the beginning of the cam 13. The position of the contact section 15 relative to the cam 13 remains at the beginning of the opening section OA due to the locked energy accumulator 14. The opening section OA extends over at least half the path of the cam 13 and merges into the clamping section SA.

Figure 3b shows the bottom view of the triggering device 17, which is in engagement with the corresponding indentation 55a via the projection 55b. The feeder 55a is located on the locking device 16. The locking device 16 holds the energy store 14 in the tensioned position.

figure 4 shows the triggering of the triggering device 17. The force applied by the user FB acts against in the figure 4 not shown door leaf 3a, 3b. Due to the overextension from the coplanar position, the release device 17 is pressed against a component part of the furniture carcass 40 . A counterforce FG is generated on the triggering device 17 by the force of the user FB. Thus, the extension 55b of the triggering device is pulled out of the indentation 55a of the locking device 16. The locking device 16 is now in the unlocked state. This can, as in the figure 4 shown, done by a component of the furniture body 40.

But also by, for example, a direct or indirect connection between the triggering device 17 and for example the second door leaf 3b or the second fitting part 1b. This connection can be, for example, a tensioned Bowden cable or a similar device which triggers the triggering device 17 when the door leaves are pushed out of the coplanar position. It is therefore not always necessary to make direct contact with the furniture body 40 in order to ensure that the ejection device 1 is triggered. There is also the possibility of triggering via a connection of the triggering device 17 to a region of the ejection device 1 that is movable relative thereto.

figure 5 shows the unlocked locking device 16. The energy accumulator 14 now acts against the contact section 15, which moves along the opening section OA of the cam 13 and also sets the scissor mechanism 10 in motion through the connection to the intermediate lever 11. The second scissors-type lever 10b moves the first scissors-type lever 10a via the intermediate lever 11, which is attached to the pivot point G1 on the second scissors-type lever 10b. The first scissor lever 10a is connected to the guide device 12 on the first fitting part 1a via a guide element 12b. Thus, the ejection device 1 is moved from the coplanar position in the direction of the open position via the energy store 14, the pivot point G1, the intermediate lever 11 and the first scissor lever 10a. The movement takes place around the axis of rotation 51.

figure 6 shows a further position between the closed position and the open position of the ejection device 1. The energy store 14 continues to discharge, the second scissor lever 10b moves via the first pivot point G1 and the second hinge point G2 and the intermediate lever 11 arranged between them, the first scissor lever 10a along the guide device 12. The contact section 15 moves along the cam 13. The scissor mechanism 10 is thus supported by the base body 6.

figure 7 shows an opening angle of approximately 90° of the ejection device 1. For the sake of simplicity, the first and the second door leaf 3a, 3b have not been drawn in, the angle of these would now also correspond to approximately 90° to one another. The energy accumulator 14 continues to discharge until the contact section 15 has arrived at the end of the opening section OA of the cam 13 . If the contact section 15 is at the end of the opening section OA and thus at the transition of the clamping section SA, the force accumulator 14 is completely unloaded.

The scissors mechanism 10 then no longer moves further automatically due to the influence of the force of the force accumulator 14 . A further movement from this position into the fully open position of the ejection device 1 can take place, for example, via a furniture drive or now also manually by the user.

figure 8 shows how the scissor mechanism 10 behaves when the second fitting part 1b is pivoted further in order to load the energy accumulator 14. The charging of the force accumulator 14 takes place via the contact section 15, which is now located in the clamping section SA. The angle between the first fitting part 1a and the second fitting part 1b is further reduced by a furniture drive or manual actuation by the user. The is forcibly guided Contact section 15 moves on the control cam 13 along the clamping section SA, which leads to a clamping of the energy accumulator 14. Parallel to this, the scissors mechanism 10 can continue to move in order to figure 8 to bring door leaves 3a, 3b, not shown, into their open position (parallel position). Tensioning of the energy store 14 takes place via the carriage 55, which is connected to the contact section 15. Due to the contact of the contact section with the control cam 13, this now moves against the actuating force of the energy store 14. It can also be seen how the locking device 16 with its locking section 16a approaches the corresponding locking section 16b. In this case, the locking section 16a and the corresponding locking section 16b are formed by a positive connection, for example by a notch with a bolt.

figure 9 shows how the in the figure 9 not visible folding door 3 is brought further in the direction of the open position. The contact section 15 is located just before the most pronounced area of the cam 13 in the clamping section. The force accumulator 14 is thus just before its most tightened position. The locking device 16 is close to the locking point. The scissor mechanism 10 is folded up further and takes its place between the door leaves 3a, 3b, which cannot be seen in the figure. A small spring 59 in the pivoting area of the locking device 16 pushes it primarily into the locked position in order to ensure secure locking as soon as the Lay locking sections 16a, 16b positively one on top of the other or in one another.

figure 10 shows the ejection device 1 shortly before the open position, which is the parallel position in FIG figure 10 not shown folding door 3 essentially corresponds. The contact section 15 has arrived just before the end of the clamping section SA of the cam 13 . The force accumulator 14 is almost completely tensioned. Due to the fact that the locking device 16 has moved away from the triggering device 17 along the longitudinal axis of the energy accumulator 14, triggering cannot take place in the parallel position of the door leaves 3a, 3b either. It is thus provided in the parallel position of the door leaves 3a, 3b no contact of the triggering device 17 with the locking device 16, since no unlocking of the energy store 14 is desired in the open position.

figure 11 shows the parallel position of the folding door 3. The parallel position corresponds to the open position of the folding door 3, in which the first door leaf 3a is in a substantially parallel position relative to the second door leaf 3b. The ejection device 1 is now in the folded state between the door leaves 3a, 3b. The spring accumulator 14 is fully tensioned. The locking device 16 is closed due to the corresponding locking sections 16a, 16b.

Due to the distance of the release device 17 to the locking device 16 is a trip in the Open position of the folding door 3 not possible. The contact section 15 is in the end position on the cam 13. In this open position, the folding door in the figure 1 insertion shaft 33 shown are inserted. This insertion into the slide-in slot 33 can take place via a drive or by the force of the user. It can also be moved out of the slide-in slot 33 by means of a drive. Thus, the folding door 3 brought into the open position is ejected from the slide-in shaft 33 and can then be brought back into the closed position via an additional drive or also manually by the user.

During the movement from the open position to the closed position, the ejection device 1 is virtually idle and moves in the tensioned state from the open position to the closed position in order to be able to ensure renewed triggering. When the ejection device 1 is completely folded up, the guide element 12b is located at the end of the guide device 12.

figure 12 shows the ejection device 1 pivoting back from the open position into the closed position. The guide element 12b of the first scissor lever 10a is thereby moved along the guide device 12 . The scissor mechanism 10 remains in the folded state since it is latched by the locking device 16 . The locking device 16 remains closed via the locking sections 16a, 16b. The force accumulator 14 remains charged. The contact section 15 moves away from the control cam 13 . There is no Contact between the contact section 15 and the cam 13.

figure 13 shows the ejection device 1 shortly before the coplanar position (closed position) of the door leaves 3a, 3b. The scissors mechanism 10 still remains in the folded state. It can be seen that the triggering device 17 moves closer to the locking device 16 in order to be able to ensure a renewed triggering in the coplanar positions. The contact section 15 is thereby moved away at a distance from the cam 13 and does not engage with it.

figure 14 shows the ejection device 1 in the coplanar position of the folding door 3. It is noticeable that the triggering device 17 is not yet in engagement with the locking device 16. Re-triggering is therefore not yet possible. This is due to the push-through protection, which is intended to prevent the door from being immediately reopened by the closing movement and exceeding the coplanar position. A time delay in the intervention of the triggering device 17 in the locking device 16 should therefore take place. This is done via the control device 61, which causes a time-delayed readjustment of the triggering device 17. The control device 61 can be designed, for example, in the form of a damper, rotary damper or the like. This requires longer to readjust the triggering device 17 than the closing process of the door leaf 3.

figure 15 shows how the push-through protection has been canceled via the control device 61 . The triggering device 17 was correspondingly brought into engagement with the locking device 16 in order to be able to ensure that the ejection device is triggered again. Re-triggering begins as soon as the pushing through occurs beyond the coplanar position of the door leaves 3a, 3b, as in FIG 4 shown.

Claims (15)

Ejector device (1) for a furniture body (40) movably arranged folding door (3), wherein the folding door (3) comprises at least a first door panel (3a) and a second door panel (3b), wherein the door leaves (3a, 3b) are connected to one another in an articulated manner, the ejection device (1) has at least one ejection element (5) for buckling the folding door (3) out of a closed position in which the at least two door leaves (3a, 3b) are in a common closing plane (E) are arranged, in an open position in which the at least two door leaves (3a, 3b) enclose an angle other than 180° to one another, the ejection device (1) has at least one first fitting part (1a) for mounting the ejection device (1) on the first door leaf (3a) and the at least one ejection element (5) is supported on the at least one first fitting part (1a), wherein the at least one ejector element (5) is designed to move the second door leaf (3b) from the closed position into the open position by at least one scissor mechanism (10), the scissor mechanism (10) having at least two scissor levers (10a, 10b) and via an articulated Connection is mounted foldable between the first and the second door leaf (3a, 3b), wherein the articulated connection is formed by at least one intermediate lever (11) and the intermediate lever (11) with the first scissor lever (10a) and / or the second scissor lever ( 10b) is articulated, characterized in that the The ejection device (1) has a second fitting part (1b), the first scissor lever (10a) being movably mounted at a first end (E1) along a guide device (12) on the first fitting part (1a) and a second end (E2) of the first Scissors lever (10a) is articulated to the second fitting part (1b). Ejection device according to Claim 1, characterized in that the scissor mechanism (10) is formed from at least a first scissor lever (10a) and a second scissor lever (10b), the first and the second scissor lever (10a, 10b) being connected to one another - preferably in a central Area - connected via the articulated connection. Ejection device according to one of Claims 1 to 2, characterized in that the second scissor-type lever (10b) can be brought into contact by a contact section (15) with a cam (13) arranged on the first fitting part (1a), preferably with the contact between the contact section (15) and the control cam (13), the second scissor lever (10b) can be pivoted, with the pivoting of the second scissor lever (10b) allowing the first scissor lever (10a) to be carried along due to the articulated connection between the scissor levers (10a, 10b). is. Ejection device according to one of Claims 1 to 3, characterized in that an energy accumulator (14) arranged on the scissor mechanism (10) supports the movement of the scissor mechanism (10) as soon as the folding door (3) is brought from the closed position to the open position. Ejector device according to Claim 4, characterized in that the energy accumulator (14) acts between the first and second scissor lever (10a, 10b) and/or between the first and/or second scissor lever (10a, 10b) and the intermediate lever (11) on the fitting is arranged. Ejector device according to Claim 4 or 5, characterized in that the energy accumulator (14) is formed by a spring, preferably a compression spring. Ejection device according to one of Claims 4 to 6, characterized in that the contact section (15) of the second scissor-type lever (10b) can be pressed against the cam (13) by the action of the energy store (14), the contact section (15) moving along the cam (13) can be moved. Ejection device according to one of Claims 4 to 7, characterized in that the energy store is mounted on an end section (16) of the second scissor-type lever (10b) and the contact section (15) movably mounted - preferably displaceable - on the second scissor-type lever (10b) in a dem End section (16) pushes the opposite direction. Ejection device according to one of Claims 3 to 8, characterized in that the control cam (13) has an opening section (OA) and a clamping section (SA) wherein the contact section (15)--preferably formed by a rolling element rotatably mounted on the second scissor-type lever (10b)--can be moved along the opening section (OA) and the clamping section (SA). Ejection device according to one of Claims 4 to 9, characterized in that a locking device (16) is provided for locking the energy store (14), the energy store (14) being able to be tensioned by the interaction of the cam (13) and the contact section (15). and the energy accumulator is locked in the tensioned state by the locking device (16), as a result of which the energy accumulator (14) can be prevented from being discharged. Ejection device according to Claim 10, characterized in that a triggering device (17) is provided which unlocks the locking device (16) in a triggering position, so that the energy accumulator (14) can be changed from the charged to the discharged state. Ejection device according to Claim 11, characterized in that the triggering device (17) can be moved from a substantially coplanar position of the door leaves (3a, 3b) into the triggering position when the triggering device (17) is pressed, preferably wherein the triggering device (17) when the Release device (17) against the furniture body (40) is movable into the release position. Ejection device according to one of claims 10 to 12, characterized in that the at least one locking device (16) when the ejection device (1) is mounted by exerting pressure on the folding door (3), preferably in the area in which the door leaves (3a, 3b) are articulated are connected to each other, can be unlocked. Furniture (100) with - a furniture body (40), - at least one folding door (3), which comprises at least two door leaves (3a, 3b) connected to one another in an articulated manner, the folding door (3) having at least one closed position in which the at least two door leaves (3a, 3b) are arranged in a common closing plane, and an open position in which the at least two door leaves (3a, 3b) enclose an angle that is not equal to 180° to one another, and - at least one ejection device (1) according to any one of claims 1 to 13. Furniture according to claim 14, wherein the at least one ejection device (1) is arranged on a side of one of the two door leaves (3a, 3b) facing the furniture body (40), and/or the furniture body (40) has a feed shaft (33 ) for receiving the at least one folding door (3) in a folded retracted position.

Images