AT16875U1 - Ejection device for a folding door or folding-sliding door - Google Patents

Abstract

Ejection device (1) for a folding door or folding-sliding door (3), wherein the folding door or folding-sliding door (3) comprises at least a first door leaf (3a) and a second door leaf (3b), the door leaves (3a , 3b) are hingedly connected to one another, the ejector device (1) has at least one ejector element (5) for folding open the folding door or folding sliding door (3) from a closed position in which the at least two door leaves (3a, 3b) 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 not equal to 180 ° to one another, the ejector device (1) has at least one first fitting part (1a) for mounting the ejector device (1 ) has 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), the at least one ejection element (5) having at least one coupling device (110) for contacting de s second door leaf (3b) at least when the folding door or folding-sliding door (3) is folded open from the closed position into the open position.

Description

description

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

Furthermore, a piece of furniture with an ejection device according to the invention is to be specified.

Ejection devices of the type mentioned are already known and are shown for example in the Austrian application AT 517343 A4.

Generic ejection devices are used for folding doors or folding-sliding doors which comprise at least two hinged door leaves. In this case, the ejector devices have at least one ejector element which is used to bend the folding door or folding-sliding door from a closed position in the direction of an open position. The ejector device known from the application AT 517343 A4 shows a lever which is used to eject the ejector device from a part of the furniture body or piece of furniture. As a result of this pushing off of the ejector device, the folding or folding sliding doors are bent open and moved in the direction of the open position. The lever arranged on the ejector device thus pushes the folding door or the folding-sliding door away from the furniture body. In order to be able to move the mass of the folding door or folding-sliding door, the lever must be dimensioned accordingly long. A correspondingly strong force must be applied to the long lever. This has proven to be disadvantageous with regard to the size of the ejector devices, because the relatively large lever and the energy storage device required prevent a compact design and, moreover, may develop noises when hitting the furniture body. Furthermore, when the lever is pushed off, the angle of the door leaves relative to the furniture body is uneven when the door leaves are of different widths, which creates an unsightly image as soon as they move into the open position. The functioning of the ejector device is therefore dependent on the dimensions of the folding door or folding-sliding door in which the ejector device is used.

The object of the present invention is to provide an ejection device improved over the prior art and a piece of furniture with at least one such ejection device, the ejection device being characterized in particular by a compact design and one of the specific design of the folding door or folding sliding door independent and reproducible mode of action.

[0006] This object is achieved by the features of independent claim 1.

It is therefore provided that the at least one ejection element has at least one coupling device for contacting the second door leaf at least when the folding door or folding-sliding door is folded open from the closed position into the open position. As a result of the contact of the ejector element with the second fitting part arranged on the door leaf via the at least one coupling device, the folding door or folding-sliding door is not bent open from the body, but between the door leaves. By bending open between the door leaves, no lever is required that is supported by the furniture body or makes contact with it. This results in a compact design. In addition, there is no development of noise when it hits the furniture body or when a lever slides along the furniture body. The action of the at least one ejector device arranged between the door leaves also ensures that the door leaves always move at the same angle relative to the furniture body as soon as they are opened. The contact on the coupling device can take place indirectly, which means that the ejector element is mounted movably along a guide, for example, the guide being formed by a component of the second fitting part. However, the contact can also be made directly; for example via a hinge which is located between the second fitting part and the ejection element. A constant contact between the ejector element and the second fitting part via the coupling device is conceivable. The coupling device is thus permanently connected

bond standing components of the second fitting part and the ejection element formed. A coupling device that is only temporarily in contact or in engagement can also be provided. Thus, the contact between the ejector element and the second fitting part can only take place in certain situations, such as when ejecting the door leaves and / or when loading the energy store, which is located in the ejector device. The contact between the second fitting part and the ejector device breaks off, so to speak, in part when the door leaves move.

Advantageous embodiments of the ejection device according to the invention or of the furniture with at least one such ejection device are defined in the dependent claims 2 to 16 and 17 to 19, respectively.

[0009] Further details and advantages of the present invention are explained in more detail below with reference to the description of the figures with reference to the drawings. Show:

Fig. 1 ejection device on a folding sliding door in plan view (closed position),

Fig. 2 ejector in an oblique view (closed position),

Fig. 3 ejection device in front view (closed position),

Fig. 4 ejection device in detail in the closed position (section A-A),

Fig. 5 ejection device with release device section B-B (closed position),

Fig. 6 ejection device in plan view when overpressing the closed position,

Fig. 7 ejector detailed section A-A during overpressing,

Fig. 8 ejector detailed section B-B during overpressing,

9 shows a top view of the ejection device during the ejection,

Fig. 10 ejection device detail section A-A during ejection,

Fig. 11 Ejection device detail section B-B during ejection,

[0021] FIG. 12 ejection device in an open position in plan view,

Fig. 13a ejector detailed section A-A,

Fig. 13b control contour and control curve in detail,

Fig. 14 ejection device in detail section B-B,

15 ejector shortly before the door leaves are in parallel position,

FIG. 16 lowering the parallel door leaves in the retracted position into a retraction shaft,

17 ejection device upon return from the parallel position in the direction of the closed position,

18 ejection device shortly before the closed position, loaded energy storage device,

19 ejection device shortly before locking with active push-through protection, detail section A-A,

20 ejection device shortly before locking with active push-through protection, detail section B-B,

21 ejection device with resetting push-through protection,

22-24 different positions, exemplary embodiment without contact with the furniture body, and

25 furniture with a folding door or folding-sliding door in the closed position.

Fig. 1 shows an ejection device 1 on a folding door or folding-sliding door 3, which is divided into door leaves 3a, 3b. The arrangement is in the closed position, shown by the coplanar position of the door leaves 3a, 3b. The ejector device 1 has a first fitting part 1a and at least one coupling device 110. Located between the first fitting part 1 a and the coupling device 110 arranged on the second fitting part 16 is the ejection element 5, which is movably connected to the first fitting part 1 a and the coupling device 110. An adjustment of the first fitting part 1 a relative to the at least one coupling device 110 takes place via an energy store 18 which acts against the ejector element 5. However, this adjustment only takes place after the locking device 7 has been unlocked. The at least one ejector element 5 can be acted upon by at least one energy storage device 18 to be loaded manually by a user, and the at least one ejector device 1 has at least one locking device 7 for releasably locking the at least one ejector element 5 the application of the at least one charged energy storage device 18.

In the closed position, the at least one locking device 7 holds the energy storage device 18 in a pretensioned position and thus the arrangement of the door leaves 3a, 3b remains in the closed position. The triggering device 2 is in contact with a furniture part 4 of the furniture 40 via the contact section 20. This furniture part 4 can, for. B. a shelf, a work surface or a component, for example an end face of the furniture body 4.

Fig. 2 shows the arrangement of fitting parts 1a, 1b with the ejector 1 in the oblique view in the closed position. The connection between the first fitting part 1 a and the coupling device 110 on the second fitting part 1 b via the at least one ejection element 5 can be seen. This is connected to at least one adjusting contour 9. The adjusting contour 9 is in contact with at least one roller body 13. The at least one roller body 13 is located on a loading element 8 which is slidably mounted on the first fitting part 1a. If the loading element 8 is pressed against the adjusting contour 9, the ejector element 5 adjusts due to the contact of the at least one rolling element 13 against the adjusting contour 9. The loading element 8 is acted upon by the spring force of the at least one energy store 18, which is preloaded in the closed position in a locking position is locked. At least one guide 11 is installed on the second fitting part 1b, along which a region of the ejector element 5 is movably supported. This storage takes place, for example, via pins or sliding elements 12, which are arranged at the end of the ejection element 5 and engage in the guide 11. When the ejection device 1 is pushed open, this area of the ejection element 5 can move along the guide 11 and thus cause the arrangement of the door leaves 3a, 3b to move from a closed position into an open position. In a particularly preferred exemplary embodiment, the at least one ejection element 5, the sliding elements 12 and the at least one guide 11 form the coupling device 110.

3 shows the ejection device 1 in the closed position. The first fitting element 1 a is aligned coplanar with the second fitting part 159 and is held in this position by the ejection element 5. The sections A-A and B-B are explained in more detail in the further figures.

FIG. 4 shows section A-A from FIG. 3. The locking device 7 is locked to the locking point 19. The locking takes place via a type of locking lug, but can also take place via a different type of form-fitting, frictional or force-fitting connection. The release device 2 is formed by a lever which is rotatably mounted about the stop point 14. The stop point 14 connects the locking device 7 to the release device 2. By actuating the release device 2, the stop point 14 is moved and the locking device 7 is brought from the locking position shown into an unlocking position. Starting from this unlocked position, the energy store 18 is discharged, with the opening of the folding-sliding door 3 being assisted in an open position. The at least one locking device 7 is when the ejector device 1 is mounted by exerting pressure on the folding door or folding-sliding door 3, preferably in the area in which the

Door leaves 3a, 3b are hinged to one another, unlockable. In Fig. 4, the release device 2 is shown in a rest position. Thus, the fitting parts 1a, 1b remain in a closed position. An additional roller body 130 is located in a guide device 113. This guide device 113 is used to guide the loading element by supporting the additional roller body 130 movably along a corresponding longitudinal guide.

5 shows the section B-B from FIG. 3. The arrow Va indicates the possible movements of the release device 2. The arrow Vr shows the possible movements of the locking device 7. The triggering device 2 also has a support area 21 which can be connected to a slide 17. If the slide 17 is below the contact area 21, a movement of the stop point 14 can take place when the triggering device 2 moves, since it finds an abutment above the contact area 21 on the slide 17 and can be supported there when actuated. If the carriage 17 were positioned in a position remote from the contact area 21, the contact area 21 would move into the void when the triggering device 2 is actuated and thus find no abutment and no counter pressure. Triggering with an opening of the locking device 7 would therefore be ruled out, since the stop point 14 cannot be moved. This serves to avoid accidental opening by a user if the door leaves 3a, 3b or the fitting parts 1a, 1b are prematurely moved back manually from a range between the closed position and the open position into the closed position. The rolling body 13 has been shown in dashed lines for simplicity. It can be seen how this contacts the positioning contour 9.

Fig. 6 shows the pressing of the folding door or folding-sliding door 3, which is divided into two door leaves 3a, 3b and to which the fitting parts 1a, 1b are attached. By pressing the folding-sliding door 3 into an area behind the closed position, or in other words: out of the coplanar position of the door leaves 3a, 3b, the triggering device 2 is pressed via the contact section 20 against a furniture part 4 of the furniture 40. As a result, the release device 2 is brought from the rest position into a release position. The spring accumulator 18 is in a charged, pretensioned state.

Fig. 7 shows the section A-A from Fig. 3 in the release position of the release device 2, the locking device 7 is open because the release device 2 has levered the stop 14 out of the locking position. If the user were not to apply any more force against the folding door or folding-sliding door 3, the ejection device 1 would support and effect an opening of the arrangement in the direction of the open position due to the pretensioned energy accumulator 18. However, this is only possible if the slide 17 is located below the contact area 21 and serves as an abutment for the actuating force, as it were, as a counterforce - of the user. The slide 17 is held in this position by the spring element 16. Only when the ejector device 1 moves from a closed position to an open position does the slide 17 also move, since it is coupled to the movements of the loading element 8, the energy store 18, the adjusting contour 9 or the ejector element 5. This is done e.g. B. via a driver 38, which is located on the loading element 8 and is in contact with the carriage 17 in sections. This section-wise contact is made, for example, via an elongated hole 37.

FIG. 8 shows the section B-B from FIG. 3 in the release position of the release device 2. The mobility of the slide 17 is indicated by the arrow Vs. The mobility of the positioning contour 9 is shown by the arrow R. The ejection element 5 is arranged on the adjusting contour 9, preferably firmly anchored. For the sake of simplicity, this was not shown in FIG. 5. The movement of the trip device 2 is shown by the arrow Va.

Fig. 9 shows when the user no longer exerts any force on the folding door or folding-sliding door 3 and the fitting parts 1a, 16 are now moved by the force of the spring accumulator 18 from the position behind the closed position into an open position. The support by the energy store 18 takes place up to the open position, in which the fitting parts 1a, 1b have been bent open and the user has to move them manually by moving the door 3 into a further position, such as the parallel position or the retracted position. The actual movement

up to the parallel position or retracted position must be carried out by the user himself. The ejection device 1 can, so to speak, be seen as an aid to partially opening or folding the folding door or folding sliding door 3 or as an automatic drive for moving the folding door or folding sliding door 3 into the open position. By the force of the energy store 18, designed as a compression spring, the loading element 8 is pressed against the adjusting contour 9, designed as a control cam. The ejector element 5 is adjusted due to the contact of the at least one roller body 13 against the adjusting contour 9 designed as a control cam and moves the second fitting part 1b relative to the first fitting part 1a. The linear movement of the loading element 8 or of the energy accumulator 18 is thus converted into a rotary movement on the adjusting contour 9. The adjusting contour 9 rotates about the axis 90, about which the adjusting contour 9 is rotatably mounted with the ejection element 5 on the fitting part 1a.

FIG. 10 shows the section A-A from FIG. 3 in the course of the movement between a closed position and an open position of the folding door or folding-sliding door 3, as shown in FIG. The slide 17 is carried along by the movements of the loading element 8 and moves against the spring element 16. The damping element 15 is relieved and relaxed. The damping element 15 can be designed as an oil pressure damper, gas pressure damper or also an elastomer damper. This must implement a time-shifted or delayed reset against the spring force of the spring element 16.

11 shows the section B-B from FIG. 3 in the course of the movement between a closed position and the open position of the folding door or folding-sliding door 3 as shown in FIG. The support area 21 is pulled more and more away from the slide 17 as an abutment up to a position in which the support area 21 would reach into nothing. The movement of the carriage 17 is indicated by the arrow Vs. The movement of the positioning contour 9 is shown by the arrow R. The movement of the trip device 2 is shown by the arrow Va. The dashed rolling body 13 would not be visible in this section and has only been drawn in for simplification.

This presses against the adjusting contour 9 and thus forces it to rotate about the axis 90.

12 shows the open position. From this point, as the folding door or folding-sliding door 3 continues to move into the parallel position, loading of the at least one energy storage device 18 begins by moving back the loading element 8, which was previously pushed against the positioning contour 9. This now does not support the movement into the parallel position more, but brakes this movement due to the contact with the control contour 9. The control curve of the adjusting contour 9 now rises again and pushes the loading element 8 against the energy store 18 and charges it with energy or pretensions the spring serving as the energy store 18. The locking device 7 is also moved again in the direction of the locking position, but does not yet engage in the locking position.

13a shows the section A-A from FIG. 3 in the open position of the folding door or folding sliding door 3, as shown in FIG. The additional roller body 130 serves with the guide device 113 to stabilize the loading element 8. The roller body 13 (see Fig. 13b, Fig. 14 shown in dashed lines) is now in a central position on the adjusting contour 9, in which there is no more support by the energy storage device 18 and the energy store 18 has not yet been loaded. This is made possible by the kidney-shaped control cam that forms the control contour 9. The sink SK between the two areas of the opening curve KO and the charging curve KL thus defines the end of the support phase of the energy storage device 18 and the beginning of the charging phase of the energy storage device 18 and vice versa. The loading phase of the energy store 18 is carried out by the user who manually moves the folding door or folding-sliding door 3 into the parallel position. As a result of this manual movement of the door leaves 3a, 3b into the parallel position, the energy storage device 18 is charged via the relative movement between the positioning contour 9 and the roller body 13. If the automatic movement would be supported by the energy store 18 of the fitting parts 1a, 1b in a position between the closed position and the point at which the support by the energy store 18 ends, would be interrupted by the user or in other

Ren words: if the folding door or folding sliding door 3 were stopped in the course of the movement supported by the energy store 18 and pushed back into the closed position, a kind of emergency locking function would be used. With this emergency locking function, the energy store 18 would be loaded due to the control curve of the positioning contour 9 - as described above. However, an open position would not be reached because the movement into the open position was previously canceled by the user. A locking in the closed position with a loaded energy storage device 18 would nevertheless be achieved, since the energy storage device can also be loaded by the adjusting contour 9 when it is pushed back into the closed position. If the user were to push the folding door or the folding-sliding door 3 beyond the closed position into the overpressure area, a new release would take place immediately. The folding door or folding-sliding door 3 would be automatically moved in the direction of the open position again, since the energy storage device 18 is discharged. This can, however, be very cumbersome when the user closes the door - the user would have to move the door leaves 3a, 3b very carefully into the closed position S in order to actually be able to lock them. In order to avoid this and to ensure locking, the movement of the slide 17 is inhibited by the damping device 15 and can only move slowly back into its end position. The damping device 15 acts against the spring element 16. The end position of the slide 17 is defined by the spring element 16. The slide 17 is thus only moved into the end position after a certain time and after the resistance has been overcome by the damping device 15 and provides an abutment for the contact surface 21 (visible in FIG. 14). A triggering for reopening into an open position would therefore only be possible after the slide 17 has been returned to its end position defined by the spring element 16.

13b shows this in detail. The roller body 13 is now exactly in the depression SK between the two curves KO and KL. If this is moved further along the adjusting contour 9 out of the depression SK, the force of the energy accumulator 18 is built up again, for example by pressing or pretensioning the spring.

FIG. 14 shows the section B-B from FIG. 3 in an open position of the folding door or folding sliding door 3, as shown in FIG. The contact surface 21 moves further into an area in which it loses contact with the slide 17. This is also supported by the resetting of the locking device 7 in a direction of the locking point 19. So to speak, the contact surface 21 moves partially relative to the slide 17 during the movements on the ejection device 1. The spring element 16 is now almost completely pretensioned and loaded. The damping element 15 is almost completely relieved.

15 shows the locking device 7 shortly before the parallel position of the door leaves 3a, 3b. The insertion aid 90, designed as a tongue, supports the correct positioning of the locking device 7 at the locking point 19, but it does not engage in the parallel position, since the release device 2 is also activated in the parallel position. A triggering of the triggering device 2 is not provided in the parallel position, since the energy storage device 18 should remain charged in the course of the movement of the fitting parts 1a, 1b back into the closed position. Triggering is prevented by the parallel position of the door leaves 3a, 3b and thus the fitting parts 1a, 1b; these are held together by an externally acting force which counteracts triggering from the parallel position. This externally acting force can be applied, for example, by a shaft into which the door leaves 3a, 3b in the parallel position are pushed (see FIG. 16). The ejection device 1 is only triggered when it is pushed out of the closed position.

16 shows how it is possible, in a retracted position, to sink the door leaves 3 a, 3 b in a space-saving manner in a feed shaft 33 which is located on the side of the furniture body of the furniture 40. The movement from this retracted position out of the intake shaft 33 into the closed position can be done manually by a user or by a separate, additional furniture drive 32 which is arranged in the furniture 40. The movement from the retracted position into the parallel position and further into the closed position is preferably carried out automatically.

FIG. 17 shows the arrangement of the door leaves 3a, 3b, how they are moved back from the parallel position into a closed position. The energy store 18 is charged, the locking device 7 is locked and remains in its locking position VR during the movement between the parallel position and the closed position. By locking the locking device 7, a movement of the loading element 8 is excluded. The release device 2 has no contact with a door leaf 3b and also no contact with any other part of the piece of furniture 40 and can therefore extend into a standby position. The energy store 18 has already been charged, the control curve of the adjusting contour 9 no longer has any contact with the rolling element 13, which in FIG. 17 is located congruently behind the additional rolling element 130. Moving back into the closed position from the open position thus takes place without any resistance from the energy store 18 or another element connected to it.

18 shows the fitting parts 1a, 1b shortly before the closed position. The energy store 18 is loaded and locked.

The hold-down 90, in this embodiment as a tongue arranged on the locking device 7, supports the correct positioning and thus the readiness to lock the locking device 7 at the locking point 19. The hold-down 90 ensures that the locking device 7 is always the Has endeavored to move in the direction of the first fitting part 1a - thus in the direction of the locking point 19, which is indicated by the arrow VN. The hold-down 90 is acted upon by a driver 93 which presses against the hold-down 90. This movement of the arrow VN can also be achieved by other means, such as tension or compression springs, leaf springs, dampers or similar construction elements. In this exemplary embodiment, the movement VN takes place through the action of the driver 93 by means of a converter 92, which in turn is pretensioned by a tensioning element 91. The prestressing force is thus generated via the clamping element 91, which is output via the converter 92 to the driver 93, which transfers the prestressing force thus generated to the hold-down device 90 and correctly positions the locking device 7 by the movement of the arrow VN.

19 shows the section A-A from FIG. 3 in a position shortly before the closed position. In FIG. 19, however, the special state is also shown when the folding door or the folding sliding door 3 is canceled by the user in a position between the closed position up to the point at which the support by the energy store 18 ends. In other words: the folding door or folding sliding door 3 was stopped in the course of the supported movement and pushed back into the closed position by the user. Under this circumstance, it should be avoided that if the door leaves 3a, 3b are accidentally pushed through or overpressed, a renewed release takes place between the fitting parts 1a, 1b, as already described above. The fitting parts 1a, 1b should remain in the closed position, even if the user pushes through the door leaves 3a, 3b beyond the closed position. The spring element 16 is completely pretensioned by the damper element 15, the slide 17 is now in a position in which the contact surface 21 (see FIG. 20) reaches into nothing and no abutment or counter pressure can be given by the slide 17. Even if the release element 2 were now moved by overpressing the closed position, no release would take place until the spring element 16 has pressed the slide 17 against the damper element 15 and contact has been established again between the slide 17 and the contact surface 21. An elongated hole 37 in the carriage 17, in which a connecting member 38 of the loading element 8 engages, ensures that the carriage 17 moves with the loading element 8 when the loading element 8 is moved. Since the elongated hole 37 leaves a certain amount of leeway due to its longitudinal extension, not every movement of the loading element 8 is immediately and directly transmitted to the carriage 17. If the loading element 8 is moved completely along its travel path, since the ejector device 1 was moved completely between a closed position and an open position or vice versa, the elongated hole 37 was also moved along with it because of the impact of the connecting member 38 at both ends. However, if the movement between the closed position and the open position was only partial, the length of the elongated hole 37 provides sufficient excess travel to allow a slow return.

to ensure against the damping element 15.

Fig. 20 shows the open space between the base 10 and the carriage 17, in which the contact surface 21 moves without contact to the carriage 17 and where no counterpressure for moving the stop point 14 can be achieved. The locking position of the locking device 7 thus remains upright. The adjusting contour 9 also makes contact with the rolling body 13 again in order to establish a connection free of play for the next release.

21 illustrates the locking that remains upright despite the actuation of the release element 2 due to the slide 17 acted upon by the damping element 15. This push-through protection prevents the unintentional release of the release device 2. it is possible to trigger the ejector 1 and to open the door leaves 3a, 3b again.

22 shows a further exemplary embodiment of a triggering device 2. With this exemplary embodiment, it is possible to achieve triggering when the door leaves 3a, 3b are pushed through, even without contact with part of the furniture 40 or furniture body 4. The release device 2 is connected to a connecting element 23, which in turn establishes a connection to the coupling device 110 or the second fitting part 1b.

23 shows how a user overpresses the closed position, the connecting element 23 being moved along with the relative movement between the two fitting parts 1a, 1b. Since the connecting element 23 cannot compensate for the movement - in this case a stretching movement - the triggering device 2 arranged on it must move. By moving the release device 2, the locking device 7 is brought out of the locking position and the energy storage device 18 can, as explained in the previous figures, be discharged in order to eject the door leaves 3a, 3b (see FIG. 24). The triggering device 2 can thus be unlocked by exerting pressure on the folding door or folding-sliding door 3, preferably in the area in which the door leaves 3a, 3b are hingedly connected to one another, with the triggering device 2 being mounted on the fitting part 1a and via a connecting element 23 can be brought into contact with the at least one coupling device 110, the triggering device 2 being able to be triggered by exerting pressure on the folding door or folding-sliding door 3 via the connecting element 23. Or in other words: the release device 2 is connected or connectable to the first door leaf 3a and the second door leaf 3b at least when the locking device 7 is unlocked, so that the release device 2 detect a relative change in angle of the two door leaves 3a, 3b to one another when the locking device 7 is unlocked can. This connection is implemented by the connecting element 23.

24 shows how the connecting element in the flexible area 24 is deformed during the movement between the closed position and the open position. The movement starting from the closed position and the open position is at least partially supported by the energy store 18. Since the connecting element 23 must not hinder the movement of the ejector 1 or the movement of the door leaves 3a, 3b when moving into the open position of the door leaves 3a, 3b , this must therefore be designed to be flexible in at least one direction. However, when “pulling” the connecting element 23 must not be flexible, since it must move the release device 2 as soon as the door leaves 3a, 3b are pushed through. However, on “pressure” when moving into the open position, the connecting element 23 should be flexible. This can be realized, for example, by a flexible area 24, which can be produced, for example, as a band or Bowden cable with low elasticity. This band can also form the entire connecting element 23. Another solution, such as a telescopic connecting element 23 in the form of an articulated linkage with a defined maximum length, would also be conceivable. The use of a chain as a connecting element 23 can also be provided.

Fig. 25 shows a piece of furniture 40 with at least one folding door or folding sliding door 3, which is divided into two door leaves 3a, 3b and can be moved between a closed position and an open position.

Claims (19)

Expectations 1. Ejection device (1) for a folding door or folding-sliding door (3), the folding door or folding-sliding door (3) comprising at least a first door leaf (3a) and a second door leaf (3b), the door leaves (3a , 3b) are articulated to one another, the ejector device (1) has at least one ejector element (5) for bending open the folding door or folding-sliding door (3) from a closed position in which the at least two door leaves (3a, 3b) are in a common closing plane ( E), in an open position in which the at least two door leaves (3a, 3b) enclose an angle other than 180 ° to one another, the ejector device (1) has at least one first fitting part (1a) for mounting the ejector device (1) the first door leaf (3a) and the at least one ejection element (5) is supported on the at least one first fitting part (1a), characterized in that the at least one ejection element (5) has at least one coupling device (1 10) for contacting the second door leaf (3b) at least when the folding door or folding-sliding door (3) is bent open from the closed position into the open position. 2. Ejection device according to claim 1, characterized in that the coupling device (110) is formed by a free end of the ejection element (5). 3. Ejection device according to claim 1, characterized in that the coupling device (110) contacts the second door leaf (3b) via a second fitting part (1b) at least when the folding door or folding-sliding door (3) is bent. 4. Ejection device according to claim 3, characterized in that the coupling device (110) has a guide (11), the guide (11) being arranged on the second fitting part (1b). 5. Ejection device according to one of claims 1 to 4, characterized in that the at least one ejection element (5) can be acted upon by at least one energy storage device (18) to be loaded manually by a user and the ejection device (1) at least one locking device (7) for has releasable locking of the at least one ejection element (5) against the action of the at least one loaded energy store (18). 6. Ejection device according to claim 5, characterized in that the at least one locking device (7) when the ejection device (1) is mounted by exerting pressure on the folding door or folding-sliding door (3), preferably in the area in which the door leaves (3a , 3b) are hinged to each other, can be unlocked. 7. Ejection device according to one of claims 1 to 6, characterized in that the ejection device (1) comprises at least one movably mounted loading element (8) for loading the at least one energy accumulator (18) by folding the folding door or folding sliding door (3) . 8. Ejection device according to claim 7, characterized in that the at least one ejection element (5) is connected to the at least one loading element (8) via at least one rolling body (13). 9. Ejection device according to claim 8, characterized in that at least one adjusting contour (9) is arranged between the at least one roller body (13) and the at least one ejection element (5). 10. Ejection device according to one of claims 1 and 3 to 9, characterized in that the at least one ejection element (5) is movably, preferably displaceably, mounted at one end on the at least one coupling device (110). 11. Ejection device according to one of claims 5 to 10, characterized in that at least one triggering device (2) is in operative connection with the at least one locking device (7) and the at least one locking device (7) by the at least one triggering device (2) by a Locking position is movable into an unlocking position. 12. Ejection device according to claim 11, characterized in that the first fitting part (1 a) has at least one locking point (19) with which the at least one locking device (7) can be locked in the locking position. 13. Ejection device according to one of claims 11 or 12, characterized in that in the closed position the at least one locking device (7) can be latched in the locking position, the at least one energy storage device (18) remaining in a charged state. 14. Ejection device according to one of claims 11 to 13, characterized in that the at least one release device (2) is movably mounted between a rest position and a release position, wherein in the rest position the locking device (7) remains in the locking position and in a position of Release device (2) between the rest position and the release position, the locking device (7) is released into the unlocked position. 15. Ejection device according to one of claims 11 to 14, characterized in that the locking device (7) articulated by exerting pressure on the folding door or folding-sliding door (3), preferably in the area in which the door leaves (3a, 3b) are connected to one another, can be unlocked, the triggering device (2) being triggered by contact with a part of a piece of furniture (40) located behind the folding door or folding-sliding door (3). 16. Ejection device according to one of claims 11 to 14, characterized in that the locking device (7) articulated by exerting pressure on the folding door or folding-sliding door (3), preferably in the area in which the door leaves (3a, 3b) are connected to one another, can be unlocked, the triggering device (2) being mounted on the first fitting part (1a) and being able to be brought into contact with the at least one coupling device (110) via a connecting element (23), whereby by exerting pressure on the folding door or folding -Sliding door (3) via the connecting element (23) the triggering device (2) can be triggered, wherein the triggering device (2) can detect a relative change in angle of the two door leaves (3a, 3b) to each other when the locking device (7) is unlocked. 17. Furniture (40) with - a furniture body (4), - At least one folding door or folding sliding door (3), which comprises at least two hinged door leaves (3a, 3b), wherein the folding door or folding sliding door (3) has at least one closed position in which the at least two door leaves (3a, 3b) are arranged in a common closing plane, and can assume an open position in which the at least two door leaves (3a, 3b) enclose an angle other than 180 °, and - At least one ejection device (1) according to one of Claims 1 to 16. 18. Furniture according to claim 17, wherein the at least one ejector device (1) is arranged on a side of one of the two door leaves (3a, 3b) facing the furniture body (4). 19. Furniture according to one of claims 17 or 18, wherein the furniture body (4) has a feed shaft (33) formed by a cavity for receiving the at least one folding door or folding sliding door (3) in a folded retracted position. In addition 9 sheets of drawings