AT519571A4 - Ejecting device for a movable furniture part - Google Patents

Abstract

Ejection device (1, 101, 201) for a movable furniture part (2, 22), with at least one ejection element (3, 203) for ejecting the movable furniture part (2, 22) from a closed position into an open position, at least one ejection force memory (4, 204) for applying force to the at least one ejection element (3, 203) during ejection of the movable furniture part (2, 22) from the closed position to the open position, at least one locking device (5, 205) for locking the at least one ejection element (3, 203) the application of force by the at least one ejection force memory (4, 204), wherein the at least one locking device (5, 205) can be unlocked by overpressing the movable furniture part (2, 22) in an overpressure position arranged behind the closed position in the closing direction (6), wherein at least a switching element (7, 207) which is in operative connection with the at least one locking device (5, 205) is provided, which at least one activation position in which the at least one locking device (5, 205) can be unlocked, and at least one deactivation position in which the at least one locking device (5, 205) is unlockable, wherein the at least one switching element (7 , 207) during the ejection of the movable furniture part (2, 22) from the closed position into the open position and / or by unlocking the at least one locking device (5, 205) is movable into the at least one deactivation position.

Description

The invention relates to an ejection device for a movable furniture part, with at least one ejection element for ejecting the movable furniture part from a closed position into an open position, at least one ejection force accumulator for exerting force on the at least one ejection element when the movable furniture part is ejected from the closed position into the open position, at least one locking device for locking the at least one ejection element against the application of force by the at least one ejection force accumulator, wherein the at least one locking device can be unlocked by pushing the movable furniture part into a press-over position arranged behind the closed position in the closing direction. The invention further relates to a piece of furniture with a furniture body, at least one furniture part movable relative to the furniture body and at least one such ejection device.

An ejection device according to the preamble of claim 1 is known for example from WO 2013/106873 A1. A basic problem with this ejection device is that when the movable furniture part is moved from the open position to the closed position, one wants to prevent the locking device from being unintentionally unlocked again and the movable furniture part from the ejection device being ejected again from the closed position into the open position.

To solve this problem, some solutions are already known in the prior art. In WO 2013/106873 A1, for example, a push-through protection is implemented in that a movement of the movable furniture part into the overpressure position is prevented by a blocking element when the movable furniture part reaches the closed position.

However, this solution has two disadvantages: on the one hand, part of the energy available for the closing movement of the movable furniture part has to be diverted in order to trigger the pressure protection. However, this contradicts the desire to be as harmonious and gentle as possible

Realize the closing movement because more energy must be provided for the closing movement than would actually be necessary. On the other hand, there is

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Danger that a user is not aware that the ejection device with a

Push-through protection is equipped and the blocking element or the push-through protection is damaged by incorrect operation.

The object of the present invention is therefore to provide an ejection device according to the preamble of claim 1 with a push-through protection which is improved compared to the prior art and in particular avoids the disadvantages described. Another object of the invention is to provide a piece of furniture with such an ejection device according to the invention.

These objects are achieved by the features of claims 1 and 14.

In the ejection device according to the invention it is therefore provided that at least one switching element which is operatively connected to the at least one locking device is provided, which has at least one

Activation position, in which the at least one locking device can be unlocked, and at least one deactivation position, in which the at least one locking device is unlockable, the at least one switching element when the movable furniture part is ejected from the closed position into the open position and / or by unlocking the at least one one

Locking device can be moved into the at least one deactivation position.

Because the at least one switching element can be moved into the at least one deactivation position when the movable furniture part is ejected and / or by unlocking the at least one locking device, and thus the

Locking device is not unlockable, it is ensured that the

Push-through protection, that is to say an unintentional unlocking of the locking device, is activated by the opening movement of the movable furniture part and no longer, as is provided according to the prior art, by the closing movement of the movable furniture part. So no part of the closing energy has to be branched off to activate the push-through protection.

Furthermore, the movable furniture part is no longer prevented from being moved into the overpressure position. The solution according to the invention allows movement

Rather, 3/74 of the movable furniture part from the closed position to the overpressure position. However, the at least one switching element in the at least one deactivation position - at least at the beginning of the movement of the movable furniture part into the overpressure position - ensures that the at least one locking device cannot be unlocked during this movement. Mechanical damage to the push-through protection is excluded.

The movement of the at least one switching element into the at least one deactivation position when the movable furniture part is ejected from the closed position into the open position can be realized, for example, by providing a coupling device via which the at least one switching element can be indirectly or directly coupled to the at least one ejection element , preferably wherein the coupling device comprises a driver and a stop contour, particularly preferably wherein the stop contour comprises an elongated hole in which the driver is movably mounted. In this way, a movement of the ejection element is used to move the at least one switching element into the at least deactivation position. However, this does not necessarily have to be the case. It is equally conceivable that the at least one switching element is moved into the at least one deactivation position when the movable furniture part is ejected, but independently of the movement of the at least one ejection element.

According to a preferred embodiment of the invention, it is provided that the at least one locking device has at least one unlocking device which comprises at least one coupling device for coupling the at least one unlocking device to the at least one switching element. The at least one coupling device of the at least one unlocking device can have at least one contact point, the at least one coupling device making contact with the at least one switching element in the at least one activation position via the at least one contact point and at least at the at least one contact point in contactless manner with the at least one switching element in the at least one a deactivation position is formed. In this case, the at least one switching element of the at least one activation position provides an abutment on which the at least one

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Unlocking device to unlock the locking device can support. This abutment is not present in the at least one deactivation position of the at least one switching element, so that the at least one unlocking device engages in the void.

Furthermore, it has proven to be advantageous that at least one

Reset device is provided, via which the at least one switching element can be moved from the at least one deactivation position to the at least one activation position after the movable furniture part has been ejected from the closed position into the open position or after the at least one locking device has been unlocked.

The time at which or the position of the movable furniture part relative to the furniture body moves the at least one resetting device after the ejection or unlocking of the at least one switching element from the deactivation position to the activation position is not critical. It can thus also be provided that the movement of the at least one switching element from the at least one deactivation position into the at least one activation position takes place, for example, only when the movable furniture part reaches the closed position again. The movement of the at least one switching element also does not have to be carried out by a reset device. In principle, it would also be conceivable that the user manually moves the at least one switching element back into the at least one activation position.

If at least one reset device is provided, however, it had proven to be advantageous for the at least one reset device to comprise a timing element, via which the at least one switching element is shifted in time after the movable furniture part has been ejected from the closed position into the open position or the unlocking of the at least one Locking device can be moved from the at least one deactivation position into the at least one activation position, preferably with the timing element comprising at least one energy store and at least one damper which counteracts the at least one energy store.

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Alternatively or additionally, it can be provided that the at least one reset device comprises a detection device for detecting a relative position of the movable furniture part with respect to a furniture body and the at least one switching element of the at least one reset device as a function of a predetermined relative one detected by the detection device Position can be moved from the at least one deactivation position into the at least one activation position. “Relative position of the movable furniture part” in relation to the furniture body can mean, for example in the case of a drawer as a movable furniture part, a certain distance from the front panel of this drawer to the front side of the furniture part. In the event that the movable furniture part is designed as a folding door or folding sliding door, which comprises at least a first door leaf and a second door leaf, “relative position of the movable furniture part” in relation to the furniture body can also provide a specific angular position of the two Door wings are meant relative to each other.

A further advantageous embodiment of the invention consists in that the at least one locking device comprises at least one lever arm which is pivotably mounted and / or can be locked in a positive and / or non-positive manner. A positive connection can be realized, for example, by a locking projection which engages behind a bolt or the like.

Furthermore, it had turned out to be advantageous that a translation device is provided, which is arranged between the at least one ejection force store and the at least one ejection element, preferably wherein the translation device comprises at least one rolling element and at least one adjusting contour, on which the at least one rolling element can be moved. The case in which the translation device comprises a rolling element and an adjusting contour is particularly advantageous, since a certain movement sequence of the at least one ejection element can be realized via the configuration of the adjusting contour. By arranging differently inclined surfaces on which the rolling elements run one after the other, different acceleration and braking phases can be realized, for example.

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In a special way, it makes sense to use the ejection device in connection with a movable furniture part which is designed as a folding door or folding sliding door, the folding door or folding sliding door comprising at least a first door leaf and a second door leaf, and that at least one ejection element is designed to move the folding door or folding sliding door from a closed position, in which the at least two door leaves are arranged in a common closing plane, to an open position, in which the at least two door leaves form an angle not equal to 180 ° to one another, eject.

In this case, it also makes sense that the ejection device has at least one fitting part for mounting the ejection device on the first door leaf and the at least one ejection element is supported on the at least one fitting part, and the at least one ejection element has at least one device for coupling the at least one Ejection element with the second door leaf at least when the folding door or folding sliding door from the closed position to the open position.

This exemplary embodiment ensures that the folding door or folding sliding door is ejected or buckled between the two door leaves and not between the folding door or folding sliding door and the furniture body. This has two major advantages: on the one hand, a shorter lever length is required if the at least one ejection element is designed as a lever. In this way, a smaller design compared to the prior art can be achieved. On the other hand, the same opening angle between the door leaves always occurs when ejecting, regardless of the dimensions of the door leaves.

In the event that an unlocking device is provided for the locking device, it is also not absolutely necessary for the unlocking device to make contact with the furniture body for unlocking. Rather, it can also be provided that the unlocking device is connected or connectable to the first door leaf and the second door leaf, at least when the at least one locking device is unlocked, so that the unlocking device can detect a relative change in angle of the two door leaves to one another when the at least one locking device is unlocked. On

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Ί In this way, the ejection device can be arranged anywhere between the two door leaves. Otherwise you would have to make sure that the

Ejection device is arranged on the two door leaves in such a way that it is at a short distance from an end face of the furniture body.

As stated at the beginning, protection is also sought for a piece of furniture with a furniture body, at least one furniture part that can be moved relative to the furniture body, in particular at least one folding door or folding sliding door, and at least one ejection device according to the invention for ejecting the at least one movable furniture part from a closed position in an open position, preferably wherein the at least one movable furniture part is designed as a folding door or folding sliding door and the furniture body has a, in particular shaft-shaped, cavity for receiving the at least one folding door or folding sliding door in a folded position.

In connection with the present invention, it is particularly advantageous that a drive device is provided which is designed to automatically transfer the at least one movable furniture part from the open position into the closed position. A distinction can then be made between two cases, namely a first case in which the movable furniture part is manually moved back into the closed position by a user immediately after being ejected, and a second case in which the at least one movable furniture part is automatically transferred to the closed position. In the first case, the push-through protection is activated according to the invention in that the at least one switching element - at least at the beginning of the movement of the movable furniture part into the closed or press-over position - is in the at least one deactivation position, as a result of which the at least one locking device is unlockable. In the second case, however, it is not even necessary to have a push-through protection, since the drive device will always move the movable furniture part into the closed position with the same force. Through a tailor-made design of this force, a movement of the movable furniture part from the closed position into the overpressure position can be avoided without the need for a push-through protection. In other words, the present invention particularly covers the case of an “emergency closing”, in the sense that a user expresses his opinion regarding the

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Changes opening request and wants to close the movable furniture part immediately after ejection or even when ejecting. In this case, the push-through protection is always active to the extent that the locking device cannot be unlocked.

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

Fig. 1a

Fig. 1b

Fig. 1c

Fig. 1d

Fig. 2a

Fig. 2b Fig. 2c

Fig. 3 Fig. 4a

Fig. 4b

Fig. 4c

Fig. 5a is a perspective view of a piece of furniture with two closed folding sliding doors, the furniture from Fig. 1a, wherein one of the folding sliding doors was ejected by means of an ejection device according to the invention, the furniture from Fig. 1a, with the two folding slides Doors each assume a folded position, the furniture from Fig. 1a, the two folding sliding doors are each sunk in a cavity arranged in the furniture body, a first preferred embodiment of the invention

Ejection device in a perspective view, the ejection device according to FIG. 2a in a side view, the ejection device according to FIG. 2a in a view from below, but without fitting plates, the ejection device according to FIG. 2a in an exploded view, the ejection device according to FIG. 2a in a Top view with the ejector locked, a cross-sectional view of the locking device half of the ejection device according to FIG. 4a along the section plane AA, a cross-sectional view along the locking device half of the ejection device according to FIG. 4a along the section plane BB, the ejection device according to FIG the first preferred

Embodiment in a side view, the

Ejection device is in the overpressure position,

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5b shows a cross-sectional view of the locking device

Half of the ejection device according to the first preferred

Embodiment along the section plane A-A, the

Ejection device is in the overpressure position,

5c shows a cross-sectional view of the locking device half of the ejection device according to the first preferred exemplary embodiment along the sectional plane B-B, the ejection device being in the overpressure position,

6a, the ejection device according to the first preferred embodiment in a side view, the ejection device being in a position immediately after unlocking,

6b shows a cross-sectional view of the locking device half of the ejection device according to the first preferred exemplary embodiment along the sectional plane A-A, the ejection device being in a position immediately after unlocking,

6c is a cross-sectional view of the locking device half of the ejection device according to the first preferred embodiment along the sectional plane B-B, the ejection device being in a position immediately after unlocking,

7a shows the ejection device according to the first preferred embodiment in a side view, the ejection device being in the open position after being ejected by the ejection device,

7b is a cross-sectional view of the locking device half of the ejection device according to the first preferred embodiment along the sectional plane A-A, the ejection device being in the open position after ejection by the ejection device,

7c shows a detailed view of the rolling element relative to the positioning contour, the ejection device being in the open position after ejection by the ejection device,

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7d shows a cross-sectional view of the locking device

Half of the ejection device according to the first preferred

Embodiment along the section plane B-B, the

Ejection device in the open position after ejection by the

Ejection device is located,

8a shows a cross-sectional view of the ejection device according to the first preferred exemplary embodiment along the sectional plane A-A, the ejection device being shown in a position in which the two halves of the ejection device are folded together,

8b is a plan view of a piece of furniture from above with a folded folding sliding door,

9 shows a cross-sectional view of the ejection device according to the first preferred exemplary embodiment along the sectional plane A-A, the ejection device being in an intermediate position when being transferred into the closed position,

10a shows the ejection device according to the first preferred embodiment in a side view, the ejection device being in a position which it assumes when manual closing occurs shortly after ejection before reaching the closed position,

10b shows a cross-sectional view of the locking device half of the ejection device according to the first preferred exemplary embodiment along the sectional plane A-A, the ejection device being in a position which it assumes when manual closing takes place shortly after ejection before reaching the closed position,

10c is a cross-sectional view of the locking device half of the ejection device according to the first preferred exemplary embodiment along the sectional plane B-B, the ejection device being in a position which it assumes when manual closing occurs shortly after ejection before reaching the closed position,

11 is a cross sectional view of the locking device half of the ejection device according to the first preferred

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Embodiment along the section plane A-A, the

Ejection device is in the overpressure position, namely in the case of a manual closing shortly after the ejection,

12a shows a perspective cross-sectional view of the half of the ejection device according to the first preferred exemplary embodiment which has the locking device, the ejection device being locked and the at least one switching element being in the activation position,

12b shows a perspective cross-sectional view of the half of the ejection device according to the first preferred exemplary embodiment having the locking device, the ejection device being locked and the at least one switching element being in the deactivation position,

13a is a side view of a second preferred embodiment of the ejection device, the ejection device being in the locked closed position,

13b shows a side view of a second preferred exemplary embodiment of the ejection device, the ejection device being in the overpressure position,

13c shows a side view of a second preferred exemplary embodiment of the ejection device, the ejection device being in a position immediately after unlocking,

14a is a perspective view of a section through a further piece of furniture with a folding flap and an ejection device according to the first preferred exemplary embodiment,

14b shows a further perspective view of the piece of furniture from FIG. 14a,

15a is a side view of a third preferred embodiment of the

Ejection device with the folding sliding door closed,

15b shows a top view of the ejection device according to FIG. 15a without a folding sliding door and the end face of the furniture body,

15c is a partial view from the side along the sectional plane C-C (compare FIG. 15b),

15d is a partial view from the side along the sectional plane D-D (compare FIG. 15b),

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15e is a partial view from the side along the sectional plane E-E (compare FIG. 15b),

15f is a partial view from the side along the sectional plane F-F (compare FIG. 15b),

16a is a side view of the third preferred embodiment of the

Ejection device, the folding sliding door being moved into the overpressure position,

16b is a plan view from above of the ejection device according to FIG. 16a without a folding sliding door and end face of the furniture body,

16c shows a partial view from the side along the sectional plane C-C (compare FIG. 16b),

16d is a partial view from the side along the sectional plane D-D (compare FIG. 16b),

16e is a partial view from the side along the sectional plane E-E (compare FIG. 16b),

16f is a partial view from the side along the sectional plane F-F (compare FIG. 16b),

17a shows a side view of the third preferred exemplary embodiment of the ejection device, the folding-sliding door assuming the maximum overpressure position,

17b is a plan view from above of the ejection device according to FIG. 17a without a folding sliding door and end face of the furniture body,

17c shows a partial view from the side along the sectional plane C-C (compare FIG. 17b),

17d is a partial view from the side along the sectional plane D-D (compare FIG. 17b),

17e is a partial view from the side along the sectional plane E-E (compare FIG. 17b),

17f is a partial view from the side along the sectional plane F-F (compare FIG. 17b),

18a is a side view of the third preferred embodiment of the ejection device immediately after the locking device is unlocked,

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18b shows a top view of the ejection device according to FIG. 18a without a folding sliding door and the front side of the furniture body,

18c shows a partial view from the side along the sectional plane C-C (compare FIG. 18b),

18d is a partial view from the side along the sectional plane D-D (compare FIG. 18b),

18e is a partial view from the side along the sectional plane E-E (compare FIG. 18b),

18f is a partial view from the side along the sectional plane F-F (compare FIG. 18b),

Fig. 19a is a side view of the third preferred embodiment of the

Ejection device when ejecting the folding sliding door in a first intermediate position,

19b shows a plan view from above of the ejection device according to FIG. 19a without a folding sliding door and the end face of the furniture body,

19c shows a partial view from the side along the sectional plane C-C (compare FIG. 19b),

19d is a partial view from the side along the sectional plane D-D (compare FIG. 19b),

19e is a partial view from the side along the sectional plane E-E (compare FIG. 19b),

19f shows a partial view from the side along the sectional plane F-F (compare FIG. 19b),

20a is a side view of the third preferred embodiment of the

Ejection device when ejecting the folding sliding door in a second intermediate position,

20b shows a plan view from above of the ejection device according to FIG. 20a without a folding sliding door and the end face of the furniture body,

20c shows a partial view from the side along the sectional plane C-C (compare FIG. 20b),

20d is a partial view from the side along the sectional plane D-D (compare FIG. 20b),

20e is a partial view from the side along the sectional plane E-E (compare FIG. 20b),

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20f is a partial view from the side along the sectional plane F-F (cf.

Figure 20b),

Fig. 21a is a side view of the third preferred embodiment of the

Ejection device when ejecting the folding sliding door in a third

Intermediate position with unloaded exhaust energy accumulator,

21 b shows a top view of the ejection device according to FIG. 21 a without a folding sliding door and the front side of the furniture body,

21c shows a partial view from the side along the sectional plane C-C (compare FIG. 21b),

21 d is a partial view from the side along the sectional plane D-D (compare FIG. 21 b),

21 e is a partial view from the side along the sectional plane E-E (compare FIG. 21 b),

21 f shows a partial view from the side along the sectional plane F-F (compare FIG. 21 b),

22a is a side view of the third preferred embodiment of FIG

Ejection device when manually moving the folding-sliding door in the direction of the parallel position of the door leaves of the folding-sliding door after the ejection process in a first intermediate position,

22b shows a plan view from above of the ejection device according to FIG. 22a without a folding sliding door and the end face of the furniture body,

22c shows a partial view from the side along the sectional plane C-C (compare FIG. 22b),

22d is a partial view from the side along the sectional plane D-D (compare FIG. 22b),

22e is a partial view from the side along the sectional plane E-E (compare FIG. 22b),

22f is a partial view from the side along the sectional plane F-F (compare FIG. 22b),

23a is a side view of the third preferred embodiment of FIG

Ejection device when manually moving the folding-sliding door in the direction of the parallel position of the door leaves of the folding-sliding door after the ejection process in a second intermediate position,

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23b is a plan view from above of the ejection device according to FIG. 23a without a folding sliding door and front side of the furniture body,

23c is a partial view from the side along the sectional plane C-C (compare FIG. 23b),

23d is a partial view from the side along the sectional plane D-D (compare FIG. 23b),

23e is a partial view from the side along the sectional plane E-E (compare FIG. 23b),

23f is a partial view from the side along the sectional plane F-F (compare FIG. 23b),

24a is a side view of the third preferred embodiment of the

Ejection device when manually moving the folding sliding door in the direction of the parallel position of the door leaves of the folding sliding door after the ejection process in a third intermediate position,

24b is a plan view from above of the ejection device according to FIG. 24a without a folding sliding door and end face of the furniture body,

24c shows a partial view from the side along the sectional plane C-C (compare FIG. 24b),

24d is a partial view from the side along the sectional plane D-D (compare FIG. 24b),

24e is a partial view from the side along the sectional plane E-E (compare FIG. 24b),

24f is a partial view from the side along the sectional plane F-F (compare FIG. 24b),

25a is a side view of the third preferred embodiment of FIG

Ejection device when manually moving the folding-sliding door in the direction of the parallel position of the door leaves of the folding-sliding door after the ejection process in a fourth intermediate position,

25b shows a plan view from above of the ejection device according to FIG. 25a without a folding sliding door and the end face of the furniture body,

25c shows a partial view from the side along the sectional plane C-C (compare FIG. 25b),

25d is a partial view from the side along the sectional plane D-D (compare FIG. 25b),

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25e is a partial view from the side along the sectional plane E-E (compare FIG. 25b),

25f is a partial view from the side along the sectional plane F-F (compare FIG. 25b),

26a shows a side view of the third preferred exemplary embodiment of the ejection device when the folding-sliding door is reversed manually during or immediately after being ejected in the direction of the closing / overpressing position of the folding-sliding door in a first intermediate position,

26b shows a plan view from above of the ejection device according to FIG. 26a without a folding sliding door and the end face of the furniture body,

26c shows a partial view from the side along the sectional plane C-C (compare FIG. 26b),

26d is a partial view from the side along the sectional plane D-D (compare FIG. 26b),

26e is a partial view from the side along the sectional plane E-E (compare FIG. 26b),

26f is a partial view from the side along the sectional plane F-F (compare FIG. 26b),

27a shows a side view of the third preferred exemplary embodiment of the ejection device when the folding-sliding door is reversed manually during or immediately after being ejected in the direction of the closing / overpressing position of the folding-sliding door in a second intermediate position,

27b shows a top view of the ejection device according to FIG. 27a without a folding sliding door and the end face of the furniture body,

27c is a partial view from the side along the sectional plane C-C (compare FIG. 27b),

27d is a partial view from the side along the sectional plane D-D (compare FIG. 27b),

27e is a partial view from the side along the sectional plane E-E (compare FIG. 27b),

27f is a partial view from the side along the sectional plane F-F (compare FIG. 27b),

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28a is a side view of the third preferred embodiment of FIG

Ejection device in the case of a manual reversal of the movement of the folding sliding door during or immediately after the ejection in the direction of the closing / overpressing position of the folding sliding door in a third

Intermediate position,

28b shows a top view of the ejection device according to FIG. 28a without a folding sliding door and the end face of the furniture body,

28c shows a partial view from the side along the sectional plane C-C (compare FIG. 28b),

28d is a partial view from the side along the sectional plane D-D (compare FIG. 28b),

28e is a partial view from the side along the sectional plane E-E (compare FIG. 28b),

28f is a partial view from the side along the sectional plane F-F (compare FIG. 28b),

29a is a perspective view of the third preferred embodiment of the ejection device,

29b is an exploded view of the third preferred embodiment of the ejection device,

30a shows a perspective view of the switching axis 276 together with the elements arranged thereon, and

FIG. 30b shows an exploded view of the assembly from FIG. 30a.

Figures 1a to 1d show a piece of furniture 25 with a furniture body 15. A part of this furniture body 15 can by means of two folding-sliding doors 2, each comprising a first door leaf 19 and a second door leaf 20, the two door leaves 19 and 20 being articulated are interconnected, are covered to the outside. In the case of FIG. 1a, the two folding-sliding doors 2 are in a closed position, in which the two door leaves 19 and 20 are arranged in a common closing plane. In the case of FIG. 1b, one of the two folding-sliding doors 2 (the right folding-sliding door 2) is in an open position, in which the two door leaves 19 and 20 enclose an angle 21 not equal to 180 ° to one another. In comparison, the two door leaves 19 and 20 of the other folding-sliding door 2 enclose an angle 21 of 180 ° to one another. In the case of FIGS. 1c and 1d, the two folds 18/74

Sliding doors 2 a folded position, the folding sliding doors 2 according to FIG. 1c being arranged outside the furniture body 15 and according to FIG. 1d inside the furniture body 15. Cavities 26, which are shaft-shaped, are provided for arranging the folding-sliding doors 2 within the furniture body 15.

At least in that part of the furniture 25 which can be covered by means of the folding and sliding doors 2, a kitchen 28 is arranged with a base cabinet and wall cabinets comprising drawers, for example.

One of the two door leaves 19 and 20 of the folding sliding doors 2 is in each case articulated on a support. This door leaf is provided with the reference number 19. The two door leaves 19 and 20 are also articulated to one another via hinges 30 (cf. FIG. 1c). That door leaf 20, which is not articulated to the carrier, is connected to a carriage 31, which is movably mounted along a rail 32. The rail 32 is arranged in the upper region of the furniture body 15.

The three spatial directions are provided with the reference symbols 6 (depth), 34 (width) and 33 (height).

Between the two door leaves 19 and 20 of the folding sliding doors 2 there is an ejection device 1 for ejecting the folding sliding doors 2 from a closed position, in which the two door leaves 19 and 20 are arranged in a common closing plane, into an open position , in which the two door leaves 19 and 20 enclose an angle 21 not equal to 180 ° but arranged. 1 partially cooperate with an end face 29 of the furniture body 15.

A first preferred exemplary embodiment of the ejection device 1 is described in FIGS. 2a to 12b. A second exemplary embodiment of the ejection device 101 is described in FIGS. 13a to 13c. A third embodiment of the ejection device 201 is described in FIGS. 15a to 28f.

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FIGS. 2a to 2c show the ejection device 1 according to the first preferred exemplary embodiment in the locked closed position, a section of the folding-sliding door or the door leaves 19 and 20 which are articulated to one another via the central hinges 30 being shown schematically. The hinge axis of the central hinges 30 is provided with the reference number 35. The ejection device 1 is connected on the one hand via a fitting part 40 (see FIG. 2c) and on the other hand via fitting parts 24 to the door leaves 19 and 20.

A first part of the ejection device 1 is arranged on one door leaf 19 and a second part of the ejection device 1 is arranged on the other door leaf 20.

The first part of the ejection device 1 comprises an ejection force accumulator 4 with two compression springs, which are each arranged on a stabilization device 38 (see also FIG. 3). The stabilizing devices 38 prevent the compression springs from buckling during compression. The stabilization devices 38 are each arranged between a base 37 and a slide 36. The base 37 is fixedly connected to the door leaf 19 via a base plate 40. The slide 36 can be displaced relative to the base plate 40, on the one hand under the influence of an energy stored in the compression springs of the ejection force accumulator 4 and on the other hand under the influence of a manual action on the ejection device 1 by folding the door leaves 19 and 20.

The slide 36 has a first end in which the

Support stabilization devices 38, and an opposite second end on which two rolling elements 17 are rotatably mounted about an axis 41 (see also Figure 3). The rolling elements 17 are each supported on an adjusting contour 18 rotatably mounted about an axis of rotation 47.

In order to prevent the slider 36 from being lifted off the fitting part 40, a further rolling element 52 is arranged on the axis 41 between the two rolling elements 17 and is mounted in a groove 53 of a component 42 so that it can be displaced to a limited extent. The component 42 is arranged between the two positioning contours 18.

20/74

The positioning contours 18 and the rolling elements 17 form a transmission device which is arranged between the ejection force accumulator 4 and two ejection elements 3. The ejection elements 3 are positively coupled in their movement with the adjusting contours 18. This means that the ejection elements 3 when the

Adjusting contours 18 about the axis of rotation 47 also perform such a rotation.

Furthermore, the ejection elements 3 each have at least one device for coupling the ejection elements 3 to one of the door leaves 19 or 20. In detail, this device for coupling consists of a preferably bolt-shaped end section 23, which is slidably mounted in a groove 54 (see also FIG. 3) of a fitting part 24. By rotating the ejection elements 3 about the axis of rotation 47, the door leaf 20 is subsequently pivoted relative to the door leaf 19 about the axis of rotation 35. Conversely, a relative movement of the door leaves 19 and 20 relative to one another also causes the ejection elements 3 to rotate.

In summary, the translation device serves, among other things, to convert a linear movement of the slide 36 into a pivoting movement of the ejection elements 3, and vice versa. When the linear movement of the slide 36 is converted into a pivoting movement of the ejection elements 3, the ejection force store 4 is discharged. In the opposite direction, that is, when a relative movement of the door leaves 19 and 20 or the fitting parts 40 and 24 relative to one another into a linear movement of the slide 36, the ejection force accumulator 4 is loaded.

The design of the adjusting contours 18 also allows the movement of the ejection elements 3 to be precisely controlled. In this way, for example, an acceleration phase can initially be achieved at the beginning of the ejection process. This can subsequently be followed by a braking phase before the ejection force accumulator 4 is loaded.

In order to achieve a compact design of the ejection device 1, recesses 46 (see also FIG. 3) are formed in the fitting part 49 and the door leaf 19, which recesses 18 can accommodate the adjusting contours 18 at least in regions as they are pivoted.

21/74

The ejection device 1 further comprises a locking device 5 for

Locking the ejection element 3 against the application of force by the

Ejection force storage device 4. The locking device 5 comprises a lever arm

16, which is pivotally mounted about an axis of rotation 57 on the slide 36.

The locking device 5 is pressed in the direction of the fitting part 40 by a hold-down device (see also the following figures). The hold-down device comprises a spring 68, which is connected on the one hand directly or indirectly to the fitting part 40, this connection being able to take place via the base 37 as in the case shown. On the other hand, the spring 68 is connected to the end of a lever 67, a transverse bolt also being arranged at the lever end, which acts on a projection 45 of the locking device 5. The spring 68 is designed as a tension spring and has a slight bias. If the locking device 5 is pivoted away from the fitting part 40, the spring 68 is tensioned more and exerts a greater force in the direction of the fitting part 40. As a result, the locking device 5 tends to move in the direction of the fitting part 40 in any position. The hold-down device can alternatively or additionally also be formed by an axial spring in the vicinity of the axis of rotation 57.

The lever arm 16 is designed in two parts in the case shown (see also Figure 3). The lever arm 16 could equally well be made in one piece. At a free end of the lever arm 16, a locking projection 44 is formed, which can be locked in a positive and non-positive manner on a bolt 43. The bolt 43 is fixed to the base plate 40. Instead of the locking solution shown, any other locking solutions are also conceivable.

Two unlocking devices 10 are provided for unlocking the locking device 5. These are rotatably mounted on the lever arm 16 about an axis of rotation 48. Furthermore, the unlocking devices 10 have a free end which can come into contact with the end face 29 of the furniture body 15 via a contact point 51 (see also the following figures).

22/74

The ejection device 1 also includes, as an essential element, a switching element 7 which is operatively connected to the locking device 5 and which has an activation position in which the locking device 5 can be unlocked and a deactivation position in which the locking device 5 cannot be unlocked, the switching element 7 in the case of Ejecting the movable furniture part 2 is movable from the closed position to the open position in the deactivation position.

Specifically, the switching element 7 in the case shown is designed as a slide which is held in the base plate 40 (compare in particular FIGS. 2c and 3) in a linearly displaceable manner.

A coupling device is provided via which the switching element 7 can be indirectly coupled to the ejection elements 3, the coupling device comprising a driver 8 and a stop contour 9 in the form of an elongated hole in which the driver 8 is movably mounted. In the present case, the driver 8 is designed as a pin, which is mounted in the slide 36, on which the ejection force accumulator 4 engages. The elongated hole 9 is formed in the switching element 7. However, the slider 36 can equally well include the elongated hole 9 and the switching element 7 the driver 8. In addition, the coupling device can also be designed completely differently.

The unlocking devices 10 each further have a coupling device 11 for coupling the unlocking devices 10 to the switching element 7. Specifically, these coupling devices 11 each include a contact point 12, the coupling devices 11 contacting the switching element 7 in the activation position via the contact points 12 and being designed contactless to the switching element 7 in the deactivation position.

In order to move the switching element 7 from the deactivation position after the folding / sliding door 2 has been ejected from the closed position into the open position and back into the activation position, a reset device is provided. The reset device comprises a timing element, by means of which the switching element 7 is moved into the activation position with a time delay. The timing element comprises an energy store 13 and a damper 14 which counteracts the energy store 13.

23/74

In particular, FIG. 2c shows that the energy store 13 comprises two compression springs, which are arranged between a first end of the switching element 7 and the base plate 40. The damper 14, which is designed as a fluid damper with a piston-cylinder unit, is arranged between a second end of the switching element 7 and the component 39. This means that the slide 7 is acted upon from one side by the energy store 13 and from the other side by the damper 14.

In the locked rest position of the ejection device 1, an equilibrium is established between the energy store 13 and the damper 14 in such a way that the energy store 13 is discharged and the damper 14 is pressed in. This position is shown in Figures 4a to 4c and in Figure 12a. The locking device 5 is locked in this position. The unlocking device 10 contacts on the one hand via the contact point 51 an end face 29 of the furniture body 15 and on the other hand via the contact point 12 the switching element 7 (cf. FIG. 4c).

If the ejection device 1 or the movable furniture part 2 connected to it is moved into an overpressure position arranged in the closing direction 6 behind the closed position (compare FIGS. 5a to 5c), the unlocking device 10 unlocks the locking device 5 by exerting force on the connecting axis 48 Locking projection 44 relative to the locking pin 43 enough play to cancel the positive and non-positive connection.

Subsequently, a user releases the ejection device 1 or the movable furniture part 2 connected to it (compare FIGS. 6a to 6c). As a result, the force stored in the ejection force accumulator 4 can escape, as a result of which the slide 36 executes a linear movement. The switching element 7 is also moved via the driver 8, which strikes a first stop surface 58 of the elongated hole 9 after a short time. As a result, the switching element 7 is pulled away from the unlocking device 10 and the contact point 12 of the coupling device 11 (compare in particular FIG. 6c). At the same time, the energy store 13 of the timing element, which acts on the switching element 7, is compressed, and the damper 14 relaxes.

24/74

The slide 36 subsequently exerts a force on the setting contours 18 and thus on the ejection elements 3 via the rolling elements 17. The positioning contours 18 and the ejection elements 3 are thereby pivoted about the axis of rotation 47. Through the coupling devices 23, 24 of the ejection elements 3, the fitting parts 24 or the door leaves 19 or 20 connected therewith are pivoted about the axis of rotation 35, starting from a position in which the door leaves 19 and 20 are arranged in a common closing plane, in a position in which the door leaves 19 and 20 enclose an angle not equal to 180 ° to one another (compare in particular FIG. 6a).

The ejection movement is ended by the fact that the ejection force accumulator 4 is completely discharged. The position which the ejection device 1 occupies at this time is shown in FIGS. 7a to 7d. As can be seen in particular from FIG. 7c, the rolling element 17 is in this position in a minimum 60, which is encompassed by the adjusting contour 18. Usually, the user now wants to open the movable furniture part 2 further. For this purpose, he exerts a force 61 on the movable furniture part 2. If the movable furniture part 2 is a fold and slide door, the force is exerted on the fold and slide door in the direction of a position in which the fold and slide door is folded together. As a result, the ejection elements 3 or the associated contours 18 are pivoted further about the axis of rotation 47. Since the positioning contours 18 bear against the rolling elements 17 of the slide 36, the slide 36 is moved back in the direction of the starting position, which the slide 36 has assumed in the locked state. As a result, the ejection force accumulator 4 is subsequently reloaded.

The reset device becomes effective during this loading movement. This means that the force stored in the energy store 13 is released again and the switching element 7 is moved back into the original activation position against the action of the damper 14. The push-through protection, which was activated when the movable furniture part 2 was ejected from the closed position into the open position, is therefore deactivated again in the course of a loading movement of the ejection device 1.

25/74

Figures 8a and 8b show the folded state of the

Ejection device 1 or the movable furniture part 2. Starting from this position, the furniture part 2 can now be moved into a cavity 26 in the furniture body 15. The ejection device 1 assumes a quasi-locked state in this position. This state arises from the fact that the ejection device 1 must be stowed as space-saving as possible. This means that the unlocking device 10 is actually in a position in which the locking device 5 would be unlocked. This comes about because the unlocking device 10 is “squeezed” between the switching element 7 and the door leaf 20. If you unfold the folding sliding door 2 again, the locking device 5 is locked again immediately. A movement of the slide 36 is namely blocked by the adjusting contours 18.

FIG. 9 shows the ejection device 1 in an intermediate position when moving into the closed position, starting from the folded position according to FIG. 8b. It can be seen that the locking device 5 is locked. A force 62 is exerted on the ejection device 1 or the door leaves 19 and 20 connected thereto. According to a preferred embodiment of the invention, this force 62 is provided by a drive device 30, which is designed to automatically move the movable furniture part 2 into the closed position. In the

Drive device 30 can be, for example, the central hinges that connect the door leaves 19 and 20 to one another. Alternatively or in addition, a separate drive device can also be provided.

In addition to this, a drive device 49 can also be provided, which transfers the door package from the cavity 26 to a position outside the cavity 26. The drive device 30 can also be divided into two parts, in that a first part causes the door package to bend from the folded position into an intermediate position and a second part causes it to be transferred from the intermediate position to the final closed position. Since the force provided by the drive device 30 can be adjusted precisely, the movable furniture part 2 will always move into the closed position at the same speed. A push-through protection is not necessary in this case because the force is measured in this way

26/74 can that the movable furniture part is no longer moved from the closed position to the overpressure position.

However, it can also happen that the ejection device 1 was triggered unintentionally, or that a user changes his mind immediately after unlocking or when ejecting and immediately wants to move the movable furniture part 2 back into the closed position. This situation is also known as "emergency closing". This scenario is shown in FIGS. 10a to 10c, 11 and 12b. A user therefore manually exerts a force 63 on the ejection device 1. The ejection force accumulator 4 is thus immediately loaded again by the rolling bodies 17 being moved back on the adjusting contours 18 in the opposite direction, and the locking device 5 is moved in the direction of the locking position. In this situation, however, the push-through protection is still active due to the timing element of the reset device. This means that the switching element 7 is in the deactivation position. The unlocking device 10 is thus designed contactless to the switching element 7. If the user doses his force 63 too high, the movable furniture part 2 is moved further into the overpressure position via the closed position (cf. FIG. 11). Due to the fact that the unlocking device 10 cannot be supported on the switching element 7, the locking device 5 remains locked. This means that the locking device 5 is unlockable. Only after a certain time is the switching element 7 moved back into the activation position. Then, as a rule, the user no longer exerts any force on the ejection device 1. The ejection device 1 remains locked.

FIGS. 13a to 13c show a second preferred exemplary embodiment of the ejection device 101, specifically in the locked closed position (FIG. 13a), in the overpressure position (FIG. 13b) and in a position immediately after unlocking (FIG. 13c).

An essential difference in this exemplary embodiment is that when the locking device 5 is unlocked, the unlocking device 110 is connected to the first door leaf 19 and the second door leaf 20, or the two fitting parts 40 and 24, so that the unlocking device 110 changes the relative angle of the two Door panels 19 and 20 to each other when unlocking the

27/74

Locking device 5 can detect. This can be, for example, a rope 55, which in the closed position is taut between an end 69 of the unlocking device 110 and a connection point 56 on the fitting part 24. If the ejection device 101 is now moved from the closed position into the overpressure position, the unlocking device 110 is moved in the direction of the locking device 5. Since the development device 110 is supported at the same time on the switching element 7 described in detail in connection with the first exemplary embodiment, an unlocking of the

Locking device 5 brought about. It is therefore no longer necessary to contact the furniture body 15 to effect an unlocking. This has the great advantage that the ejection device 101 can be arranged at any point on the movable furniture part 2.

FIGS. 14a and 14b show a piece of furniture 27 in the form of an upper cabinet for the kitchen, which can be closed to the outside by a folding flap 22. The folding flap 22 is formed from two partial flaps 65 and 66 which are articulated to one another via a central hinge 30. In addition, the partial flap 66 is articulated to the furniture body 64 of the furniture 27. The partial flap 65 is moved via an actuating unit 50, which is also arranged on the furniture body 64 and comprises an energy store. In order to eject the folding flap 22 from the coplanar closed position into an open position that has been bent open, an ejection device 1 can be arranged between the partial flaps 65 and 66. Alternatively, of course, the ejection devices 101 or 201 (see the figures below) can also be used.

The ejection device according to the invention can also be used with other furniture, for example drawers.

FIGS. 15a to 28f show a third preferred exemplary embodiment of the ejection device 201. In terms of the basic principle, this ejection device 201 functions like the ejection device 1. Nevertheless, there are a number of differences which relate in particular to the switching element 207 and components connected to it.

28/74

The ejection device 201 is arranged between the door leaves 19 and 20 of a folding and sliding door 2. The ejection device 201 is on the one hand via a fitting part

240 connected to the door leaf 19 and on the other hand via a fitting 224 with the door leaf. A reverse arrangement on the door leaves 19 and 20 is also possible.

The closed position of the folding-sliding door 2 is shown in FIG. 15a. In this position, the ejection device 201 contacts the end face 29 of the furniture body 15 (compare FIGS. 1a to 1d) via an unlocking device 210. As can be seen in particular from FIG Ejector 201 is connected. The mounting levers 284 and 279 form an acute angle to one another. The fastening levers 284 and 279 are pivotable on the ejection device 201 about the pivot points 285 and 278, respectively. The contact lever 283 is connected to the fastening levers 284 and 279 via the pivot points 282 and 281. The distance between the pivot points 281 and 282 is smaller than the distance between the pivot points 278 and 286. Between the

Fastening levers 284 and 279 a spring 280 is tensioned. This spring 280 ensures that the fastening levers 284 and 279 are at the smallest possible distance from one another, as a result of which the contact lever 283 is pushed away from the ejection device 201 and is in contact with the end face 29 of the furniture body 15 in the closed position. The point of contact of the contact lever 283 with the end face 29 of the furniture body 15 is provided with the reference symbol 251. The end of the contact lever 283, on which the contact point 251 is arranged, lies opposite the end of the contact lever 283, on which the pivot points 282 and 281 are provided.

The unlocking device 210 has a further lever 211, which is connected on the one hand to the fastening lever 284 via a pivot point 286 and on the other hand has a free lever end. This free lever end is hook-shaped and has a U-shaped contact point 212.

The ejection device 201 further comprises a switching element 207 which is rotatably mounted about a switching axis 276. The switching element 207 is rotationally symmetrical

29/74 trained. It also includes hook-shaped locking projections 277, which with the

Lever 211 of the unlocking device 110 can cooperate. This situation is shown in FIG. 15d: the lever 211 makes contact with the switching element 207 via the contact point 212. This is the activation position of the switching element 207

Lever 211 provides a coupling device for coupling the

Unlocking device 210 with the switching element 207.

The unlocking device 205 is the in this embodiment

Ejection device 201 is designed as a pivotably mounted lever 216, which is pivotably mounted on the ejection device 201 about the axis of rotation 257.

The locking device 205 comprises a latching projection 244. This can engage in a corresponding latching projection 287, as is shown in FIG. 15e. The locking projection 287 is formed on a component 208 which is mounted on the ejection device 201 so as to be rotatable about an axis of rotation 242. A rolling element 217 is also mounted on the component 208 about the axis of rotation 241. This rolling element 217 can therefore move on a circular path around the pivot points 242.

The rolling element 217 is acted upon by an ejection force accumulator 204 via a slide 236. Furthermore, the rolling element 217 contacts an adjusting contour 218, which can be seen particularly well in FIG. 15f. The setting contour 218 has a minimum 260 and two adjacent maxima 289 and 288. The positioning contour 218 is rotatably mounted on the ejection device 201 about an axis of rotation 247.

An ejection element 203 in the form of a fork-shaped lever is connected in a rotationally fixed manner to the adjusting contour 218. If the adjusting contour 218 moves about the axis of rotation 247, the ejection element 203 also forcibly moves, and vice versa.

The adjusting contour 218 and the rolling element 217 together form one

Translation device which is arranged between the ejection force storage 204 and the ejection element 203.

The locking device 205 is connected to the switching element 207 via a mechanism which is shown in particular in FIG. 15c. A control contour 215 is rotationally fixed on the switching axis 276 of the switching element 207

30/74 arranged. This is also rotationally symmetrical. A button 214, which is connected to the ejection device 201 via two swivel levers 271 and 274, can be supported on the control contour 215. The pivot lever 271 is mounted on the one hand on the ejection device 201 so as to be rotatable about an axis of rotation 272. On the other hand, the pivot lever 271 is connected to the button 214 via a pivot point 270. Correspondingly, the swivel lever 274 is mounted on the ejection device 201 on the one hand rotatable about an axis of rotation 273. On the other hand, the pivot lever 274 is connected to the button 214 via a pivot point 275. The button 214 is pressed in the direction of the control contour 215 by a spring 213, which is arranged between the ejection device 201 and the button 214. The button 214 is also coupled in motion to the locking device 205.

If a user now exerts a force on the folding-sliding door 2 in the closing direction 6, so that the folding-sliding door 2 moves from the closed position into an overpressure position arranged behind the closed position in the closing direction 6, the contact lever 283 of the unlocking device 210 moved in the direction of the ejection device 201 (compare FIGS. 16a to 16f, in particular FIG. 16d). As a result, the coupling lever 211 is subsequently in the opposite direction, i. H. in the direction of the end face 29 of the furniture body 15. Because the lever 211 engages in the switching element 207, the switching element 207 is rotated about the axis of rotation 276.

This rotary movement of the switching element 207 simultaneously causes a rotation of the control contour 215 (cf. FIG. 16c), since the switching element 207 and the control contour 215 are arranged on a common axis of rotation 276. In the starting position according to FIG. 15c, the tip of the button 214 was in a first locking trough 291. If the control contour 215 is now rotated, the control contour 215 displaces the button 214 from the locking trough 291 along a flank 248 Control contour 215 moved away.

The movement of the button 214 subsequently causes the lever 216 of the locking device 205 to pivot about the axis of rotation 257, as a result of which the lever 216 moves away from the coupling component 208 and the locking is released.

31/74

The maximum overpressure position is shown in FIGS. 17a to 17f. The lever 216 of the locking device 205 has released the component 208 completely. At the same time, the tip of the button 214, which contacts the control contour 215, has moved into a second locking recess 290 via the edge 248. The push button 214 is held in a stable manner in this detent depression 290. As a result, the lever 216 of the locking device 205 is also held stably in the unlocked position.

If the user now lets go of the folding and sliding door 2, the component 208 can be pivoted about the axis of rotation 242 under the influence of the force stored in the ejection force storage 204 (see FIGS. 18a to 18f). The contact lever 283 and the coupling lever 211 of the unlocking device 210 coupled therewith move back into their original position under the influence of the spring 280. As can be seen from a comparison of FIGS. 15d and 18d, the switching element 207 now assumes a position in which the coupling lever 211 does not engage in the switching element 207. In other words, the coupling device 211 is formed at the contact point 212 without contact with the switching element 207. The switching element 207 is in a deactivation position in which the locking device 205 is unlockable.

As can be seen from the further sequence of FIGS. 19a to 19f, 20a to 20f and 21a to 21f, the rolling element 217 is moved along the adjusting contour 218 in the direction of the minimum 260 by the released force which is stored in the ejection force storage 204. As a result, the actuating contour 218 is pivoted about the axis of rotation 247. This pivoting movement continues on the ejection element 203, which subsequently pivots the door leaf 20 relative to the door leaf 19. As a result, the movable furniture part 2 is transferred from the closed position into the open position.

As a comparison of FIGS. 19e, 20e and 21e shows, the component 208 comes into contact with a further rotating part 209, which is likewise arranged on the axis of rotation 276, during the rotational movement about the axis of rotation 242 via a projection 292. The rotating part 209 is also rotationally symmetrical and has three wings 258 which can come into contact with the projection 292 of the component 208. The rotating part 209

32/74 with the wings 258 represents a stop contour which can be taken along by the component 208. The component 208 can thus also be regarded as a driver. The rotational movement of the rotating part 209 continues into a rotational movement of the switching element 207 and the control contour 215. Seen overall, the driver 208 and the stop contour 209 thus form a coupling device, via which the switching element 207 is coupled to the ejection element 203.

Due to the rotary movement of the control contour 215, the button 214 moves out of the rust trough 290 again. The switching element 207 was moved further by the rotation of the rotating part 209, but not yet to the extent that the switching element 207 would again be in an activation position. Rather, the switching element 207 is in a further deactivation position.

FIGS. 21a to 21f show that position of the ejection device 201 in which the ejection force storage 204 is completely discharged. The rolling element 217 is located in the minimum 260 of the adjusting contour 218.

Starting from this position, a user now usually exerts a force 61 to fold the folding-sliding door 2 further together. FIGS. 22a to 22f, 23a to 23f, 24a to 24f and 25a to 25f show several intermediate positions during this folding movement of the folding-sliding door 2.

The positioning contour 218 is now actively moved by the user about the axis of rotation 247. The rolling element 217 is thereby pushed out of the minimum 260 again and moved back in the direction of the original position. This will make the

Ejection force accumulator 204 reloaded.

At the same time, component 208 is pivoted back about axis of rotation 242. Since the button 214 is no longer located in the locking recess 290, the spring 213 again has the option of moving the button 214 and thus the lever 216 of the locking device 205 in the direction of the starting position. At the same time, the button 214 also rotates the control contour 215 and thus the switching element 207 until the tip of the button 214 is again located in the original recess 291 of the control contour 215 and the switching element 207 is in the activation position

33/74 (see Figures 25c and 25d). The locking device 205 could now be unlocked again.

Usually, the folding-sliding door 2 is folded further starting from the position according to FIGS. 25a to 25f and possibly stowed in a cavity 26 in the furniture body 15 (compare FIGS. 1a to 1d).

The folding sliding door 2 is then moved back to the original closed position. Nothing changes in the position of the components of the locking device 205.

FIGS. 26a to 26f, 27a to 27f and 28a to 28f show a different movement scenario. In fact, when or immediately after the movable furniture part 2 is ejected, the user decides to actively move the furniture part 2 back into the original closed position (“emergency closing”). For this purpose, the user exerts a force 63 on the furniture part 2 in the direction of the closed position. As a result, the rolling element 217 on the adjusting contour 218 is pushed back into the original position, specifically along the section of the control contour 218 on which the rolling element 217 has moved until the movement has been reversed. The ejection force storage 204 is immediately loaded again.

The component 208 is pivoted back about the axis of rotation 242. The button 214 rotates the control contour 215 and thus the switching element 207 under the influence of the spring 213. When the closed position is reached (compare FIGS. 27a to 27f), the switching element 207 is still in a deactivation position in which the coupling lever 211 does not yet engage in the switching element 207.

With the further movement in the direction of the overpressure position, the switching element 207 is rotated even further, so that it is then in the activation position. At the same time, however, the coupling lever 211 of the unlocking device 210 is pressed in the opposite direction, so that the coupling lever 211 cannot initially engage in the switching element 207. Due to the movement of the furniture part 2 from the closed position into the overpressure position during emergency closing, there is no immediate unlocking of the locking device 205. Only when the

34/74

When the user releases the furniture part 2, the unlocking device 210 moves back to the original position (see FIG. 15d), and the coupling lever 211 can engage in the switching element 207.

It can be seen from FIGS. 29a and 29b that some components of the

Ejection device 201 can be made in two parts in order to increase the stability. This is the case, for example, with the adjusting contour 218, the component 208, the lever 216 of the locking device 205, the button 214, the fastening 279 and 284 and the control contour 215.

Furthermore, it can be seen that the ejection element 203 is connected at a first end to the adjusting contour 218 and at second ends 223, on which rolling elements are arranged, to the fitting part 224. The rolling elements are slidably supported in grooves 254.

Finally, it should also be pointed out that a stabilizing device 238 is also provided in this exemplary embodiment to prevent the ejection force accumulator 204 from buckling.

30a and 30b that the control contour 215, the switching element 207 and the rotating part 209 are arranged on a common switching axis 276 in a rotationally fixed manner. This means that the rotation of one of these components causes the rotation of the other components.

The locking troughs 290 and 291 and the flanks 248 of the control contour 215, the locking projections 277 of the switching element 207 and the wings 258 of the rotating part 209 are also clearly recognizable.

Claims (15)

claims: 1. ejection device (1, 101, 201) for a movable furniture part (2, 22), with at least one ejection element (3, 203) for ejecting the movable furniture part (2, 22) from a closed position into an open position, at least one ejection force accumulator ( 4, 204) for applying force to the at least one ejection element (3, 203) when the movable furniture part (2, 22) is ejected from the closed position into the open position, at least one locking device (5, 205) for locking the at least one ejection element (3, 203 ) counter to the application of force by the at least one ejection force accumulator (4, 204), wherein the at least one locking device (5, 205) can be unlocked by pushing the movable furniture part (2, 22) into a press-on position arranged in the closing direction (6) behind the closed position, characterized in that at least one is operatively connected to the at least one locking device (5, 205) The switch element (7, 207) is provided which has at least one activation position in which the at least one locking device (5, 205) can be unlocked and at least one deactivation position in which the at least one Locking device (5, 205) is unlockable, the at least one switching element (7, 207) when the movable furniture part (2, 22) is ejected from the closed position into the open position and / or by unlocking the at least one locking device (5, 205 ) can be moved into the at least one deactivation position. 2. ejection device (1, 101, 201) according to claim 1, wherein the switching element (7, 207) is linearly displaceable and / or rotatably mounted. 3. ejection device (1, 101, 201) according to claim 1 or 2, wherein a coupling device (8, 9, 208, 209) is provided, via which the at least one switching element (7, 207) with the at least one ejection element (3, 203) can be coupled directly or indirectly, is preferred 36/74 wherein the coupling device (8, 9, 208, 209) comprises a driver (8, 208) and a stop contour (9, 209), particularly preferably the stop contour (9) as an elongated hole in which the driver (8) is movably mounted, is formed. 4. ejection device (1, 101, 201) according to one of claims 1 to 3, wherein the at least one locking device (5, 205) has at least one unlocking device (10, 110, 210), which has at least one coupling device (11, 211) for coupling the comprises at least one unlocking device (10, 110, 210) with the at least one switching element (7, 207). 5. ejection device (1, 101, 201) according to claim 4, wherein the at least one coupling device (11, 211) of the at least one unlocking device (10, 110, 210) has at least one contact point (12, 212), wherein the at least one coupling device (11, 211 ) contacts the at least one switching element (7, 207) in the at least one activation position via the at least one contact point (12, 212) and makes contactless contact with the at least one switching element (7, 207) in the at least one contact point (12, 212) at least one deactivation position is formed. 6. ejection device (1, 101, 201) according to one of claims 1 to 5, wherein at least one resetting device (13, 14, 213, 214, 215) is provided, via which the at least one switching element (7, 207) after ejection of the movable furniture part (2, 22) from the closed position to the open position or the unlocking of the at least one Locking device (5, 205) can be moved from the at least one deactivation position into the at least one activation position. 7. ejection device (1, 101, 201) according to claim 6, wherein the at least one reset device (13, 14, 213, 214, 215) comprises a timing element, via which 37/74 the at least one switching element (7, 207) is shifted in time after the movable furniture part (2, 22) has been ejected from the closed position to the open position or the at least one locking device (5, 205) has been unlocked from the at least one deactivation position to at least one activation position is movable, preferably wherein the timing element comprises at least one energy store (13) and at least one damper (14) which counteracts the at least one energy store (13). 8. ejection device (1, 101, 201) according to claim 6 or 7, wherein the at least one reset device (13, 14, 213, 214, 215) is a detection device for detecting a relative position of the movable furniture part (2, 22) with respect to comprises a furniture body (15) and the at least one switching element (7, 207) from the at least one reset device (13, 14, 213, 214, 215) in dependence on a predetermined relative position detected by the detection device from the at least one deactivation position to the at least one activation position is movable. 9. ejection device (1, 101, 201) according to one of claims 1 to 8, wherein the at least one locking device (5, 205) - At least one lever arm (16, 216), which is pivotally mounted, and / or - Can be locked positively and / or non-positively. 10. ejection device (1, 101, 201) according to one of claims 1 to 9, wherein a translation device (17, 18, 217, 218) is provided, which between the at least one ejection force accumulator (4, 204) and the at least one ejection element ( 3, 203), preferably wherein the transmission device comprises at least one rolling element (17, 217) and at least one adjusting contour (18, 218) on which the at least one rolling element (17, 217) can be moved. 38/74 11. ejection device (1, 101, 201) according to one of claims 1 to 10, wherein the movable furniture part (2) is designed as a folding door or folding sliding door, which at least a first door leaf (19) and a second door leaf (20 ), and the at least one ejection element (3, 203) is designed to open the folding door or folding sliding door (2) from a closed position in which the at least two door leaves (19, 20) are arranged in a common closing plane eject an open position in which the at least two door leaves (19, 20) enclose an angle (21) not equal to 180 ° to one another. 12. ejection device (1, 101, 201) according to claim 11, wherein the ejection device (1, 101, 201) has at least one fitting part (40, 240) for mounting the ejection device (1, 101,201) on the first door leaf (19) and the at least one ejection element (3, 203) is supported on the at least one fitting part (40, 240), and the at least one ejection element (3, 203) has at least one device (23, 24, 223, 224) for coupling the at least one ejection element (3, 203) with the second door leaf (20) at least when the folding door or folding sliding door (2) is bent from the closed position into the open position. 13. ejection device (101) according to claim 11 or 12, wherein the at least one locking device (5) has an unlocking device (110), via which the at least one locking device (5) with mounted ejection device (101) by exerting pressure on the folding door or folding Sliding door (2), preferably in the area in which the at least two door leaves (19, 20) are articulated to one another, can be unlocked, and the unlocking device (110) at least when unlocking the at least one locking device (5) with the first Door leaf (19) and the second door leaf (20) is connected or connectable, so that the unlocking device (110) can detect a relative change in angle of the two door leaves (19, 20) to each other when unlocking the at least one locking device (5). 39/74 14. Furniture (25, 27) with a furniture body (15, 64), at least one furniture part (2, 22) that can be moved relative to the furniture body (15, 64), in particular at least one folding door or folding sliding door, and at least one ejection device (1) for ejecting the at least one movable furniture part (2, 22) from a closed position into an open position according to one of claims 1 to 13, preferably wherein the at least one movable furniture part (2) is designed as a folding door or folding sliding door and the furniture body (15) has a, in particular shaft-shaped, cavity (26) for receiving the at least one folding door or folding sliding door (2) in a folded position. 15. Furniture (25) according to claim 14, wherein a drive device (30) is provided which is designed to automatically transfer the at least one movable furniture part (2) from the open position into the closed position.