EP2265147B1 - Lockable ejector device for a furniture part movably supported in piece of furniture - Google Patents

Description

The invention relates to a lockable ejection device for a furniture part movably mounted in a furniture, with a locking device for locking the movable furniture part in a closed end position and at least one ejection element for moving the movable furniture part from the closed end position to an open position, wherein the locking device at least two together coupled locking units each having a receiving element for each engagement element, wherein the receiving elements of the at least two locking units via a synchronization mechanism having at least two, each different locking units associated coupling elements and at least one synchronization unit, both in an arresting the engagement elements position and in a Engagement elements releasing position are operatively connected to each other, wherein the coupling elements by means of Synchronisierungse unit are motion coupled.

A general lockable ejection device, for example, from the Austrian utility model AT 8882 U1 known. In the device shown there, the two locking units are arranged at the rear end of the drawer and coupled to each other via a torsion bar. The disadvantage here is the additional space required in the depth of the furniture has been found. In addition, results from the coupling of the two locking units by means of the torsion bar tends tilt the front panel.

The generic EP 1 314 842 A1 shows a device for opening and closing a movable furniture part. It describes a synchronization of a Toutch latch fitting. A spring-loaded, pivotable pawl engages in a locking projection on a leg, wherein the pawl forms a known touch-latch fitting as a single element and holds a release lever in a cocked position. The pawl in combination with the locking projection serves to lock the furniture in the closed position and also to lock the ejection element (release lever).

Based on this prior art, the invention has the object to provide a generic device that avoids these disadvantages and also allows easy maintenance or adjustment.

According to the invention, this object is achieved in that each locking unit comprises a locking mechanism separate from the engagement element for releasably fixing the receiving element in the position locking the engagement element.

By the coupling of the two locking units via a synchronization mechanism which has two coupling elements connected to the locking units and a synchronization unit which couples the two coupling elements in motion, an oblique position of the front panel can be reliably avoided.

In this case, a structurally simple solution of the invention provides that the at least two coupling elements are motion-coupled in opposite directions by means of the synchronization unit, wherein it has proven to be favorable for a substantially play-free coupling of the two locking units, if the synchronization unit has a stationary arranged base element on which a synchronization element is mounted rotatably movable.

A further embodiment of the invention provides that the base element is formed at least in two parts and has a base element and an intermediate element, wherein the synchronization element is rotatably mounted on the intermediate element, whereby the risk that the coupling elements or the synchronization unit by the stationary storage of the same brace , is avoided.

According to a preferred, particularly stable embodiment it is provided that the synchronization element is formed by a gear and the synchronization unit has two toothed racks mounted translationally on the base element, which engage on opposite sides with the synchronization element and respectively connected in one end section to a coupling element . are connectable.

An alternative embodiment provides that the synchronization element is formed by a two-armed lever, which is connected in its two end portions in each case with a coupling element or connectable.

Regardless of the type of synchronization element provides a further embodiment of the invention that the at least two, each different locking units associated coupling elements for the transmission or exercise of tensile and / or compressive forces are formed. Conveniently, the coupling elements are bent and / or torsionally rigid, for which it has been found to be favorable when the coupling elements are rod-shaped or tubular.

A further preferred embodiment of the invention provides that the locking device and the synchronization mechanism on the movable furniture part and the engagement elements are fixedly arranged on the furniture, resulting in a particularly simple installation and maintenance of the device when the locking device and the synchronization mechanism at the bottom of the movable Furniture part are arranged, preferably in the area of the front panel of the movable furniture part.

In order to be able to adjust the front gap remaining between the front panel and the furniture body, which substantially corresponds to the release path in the event that the ejection device follows the touch-latch principle, it is provided according to a further embodiment of the invention that the relative position the receiving elements of the coupled locking units to the engagement elements in the depth of the furniture by means of at least one adjusting device which is adapted to convert a rotational movement into a translational movement, is linearly variable, wherein conveniently each locking unit comprises an adjusting device for the receiving element.

A structurally simple solution results when at least one locking unit comprises a relative to a base portion linearly movably mounted sliding part, on which the receiving element is arranged, wherein the Adjusting device for changing the relative position of the receiving element is arranged and designed such that it acts directly on the sliding part. That is, the installer or the user can adjust the front gap in a simple manner by turning the actuator tool-free.

If the locking of the ejection device by means of the locking mechanism for the receiving element, the overall result is a particularly space-saving solution with few components, which of course has a positive effect on the stability and the life of the device according to the invention.

In order to avoid damage that may occur in the case of incorrect operation by a user, according to a further exemplary embodiment of the invention, it is provided that at least one locking unit has an overload safety mechanism which comprises at least two parts movably connected to one another and a damage-free opening of the movable furniture part even allowed when the receiving element is fixed by means of the locking mechanism in a position locking the engagement member.

According to a further embodiment of the invention it is provided that the overload safety mechanism comprises two rotatably connected, pivotable between a first end position and a second end position parts, between which a holding device for releasably holding or for returning the rotatably connected parts in the or acts in the first end position.

It has proven to be advantageous in terms of a technically simple solution with few components when the receiving element comprises a base member and a movable element connected to the base element locking element, wherein the locking mechanism acts on the base member and the at least two mutually movably connected parts of the overload Secured mechanism are formed by the base member and the locking element of the receiving element.

Although the realization of the inventive idea would be possible even if only one side of the movable furniture part with a locking unit, the one Overload-securing mechanism and an adjusting equipped, provides a preferred embodiment of the invention, that each locking unit comprises an overload-securing mechanism and an adjusting device.

According to a further embodiment of the invention, the ejection device or the ejection element is arranged on the locking unit.

In practice, it has been found that a particularly simple and stable solution is achieved when the ejection device or the ejection element is arranged separately from the locking device on the movable furniture part or on the furniture, wherein it has proved to be particularly advantageous if the ejection device or the ejection element is arranged in the guide system for a drawer forming the movable furniture part, preferably on the carcass rail.

The invention further relates to a piece of furniture with a lockable ejection device according to one of claims 1 to 13.

Fig. 1

ein Möbel mit einem bewegbar gelagerten Möbelteil,

Fig.2a und 2b

ein Ausführungsbeispiel der Erfindung mit einem in der Tiefe des Möbels verstellbar gelagerten Aufnahmeelement,

Fig. 3

die Korpusschiene eines Führungssystems für das bewegbar gelagerte Möbelteil,

Fig. 4

eine Ausstoßvorrichtung in einer Explosionsdarstellung.

Fig. 5

ein Ausführungsbeispiel eines Eingriffselementes,

Fig. 6

perspektivisch in einer Draufsicht die Unterseite eines ersten Ausführungsbeispieles eines bewegbar gelagerten Möbelteiles mit einer Feststellvorrichtung, die zwei miteinander gekoppelte Verriegelungseinheiten aufweist,

Fig. 7a und 7b

in einer Draufsicht das Ausführungsbeispiel aus Fig. 6 in unterschiedlichen Stellungen des bewegbar gelagerten Möbelteiles,

Fig.8

perspektivisch in einer Draufsicht die Unterseite eines zweiten Ausführungsbeispieles eines bewegbar gelagerten Möbelteils mit einer Feststellvorrichtung, die zwei Verriegelungseinheiten aufweist, die über einen Synchronisierungsmechanismus gekoppelt sind und einen Überlast-Sicherungsmechanismus aufweisen,

Fig. 9a und 9b

das Ausführungsbeispiel aus Fig. 8 in einer Draufsicht auf die Unterseite des bewegbaren Möbelteiles in unterschiedlichen Stellungen,

Fig. 10

perspektivisch ein erstes Ausführungsbeispiel einer Synchronisierungseinheit,

Fig. 11a und 11b

in einer Draufsicht das Ausführungsbeispiel aus Fig. 10,

Fig. 12

perspektivisch ein weiteres Ausführungsbeispiel einer Synchronisierungseinheit,

Fig. 13

das Ausführungsbeispiel aus Fig. 12 in einer Explosionsdarstellung,

Fig. 14a und 14b

in einer Draufsicht das Ausführungsbeispiel gemäß Fig. 12 in unterschiedlichen Stellungen,

Fig. 15

perspektivisch in einer Draufsicht die Unterseite eines zweiten Ausführungsbeispieles eines bewegbar gelagerten Möbelteils mit einer Feststellvorrichtung, die zwei Verriegelungseinheiten aufweist, die über einen Synchronisierungsmechanismus gekoppelt sind und einen Überlast-Sicherungsmechanismus aufweisen,

Fig. 16a und 16b

perspektivisch in einer Draufsicht ein weiteres Ausführungsbeispiel einer Synchronisierungseinheit,

Fig. 17a und 17b

in einer Ansicht von oben und unten ein weiteres Ausführungsbeispiel einer Feststellvorrichtung, die zwei über einen Synchronisierungsmechanismus gekoppelte Verriegelungseinheiten aufweist,

Fig. 18

in einer Explosionsdarstellung eine Verriegelungseinheit gemäß dem Ausführungsbeispiel nach Fig. 17a und 17b,

Fig. 19a und 19b

in einer Explosionsdarstellung und perspektivisch ein weiteres Ausführungsbeispiel einer Verriegelungseinheit mit einem zweiteilig ausgebildeten Aufnahmeelement und einem Überlast-Sicherungsmechanismus,

Fig. 20a und 20b

ausschnittsweise ein weiteres Ausführungsbeispiel der Erfindung mit einer Verriegelungseinheit gemäß Fig. 19a und 19b,

Fig. 21 a und 21b

perspektivisch und in einer Explosionsdarstellung ein weiteres Ausführungsbeispiel eines Aufnahmeelementes mit einem Überlast-Sicherungsmechanismus,

Fig. 22a und 22b

in einer Draufsicht das Ausführungsbeispiel gemäß Fig. 21 a in unterschiedlichen Stellungen,

Fig. 23a und 23b

ein weiteres Ausführungsbeispiel eines Aufnahmeelementes mit einem Überlast-Sicherungsmechanismus,

Fig. 24a und 24b

in einer Draufsicht das Ausführungsbeispiel gemäß Fig. 23a in unterschiedlichen Stellungen,

Fig. 25

ein weiteres Ausführungsbeispiel eines Aufnahmeelementes mit einem Überlast-Sicherungsmechanismus,

Fig. 26a und 26b

in einer Draufsicht das Ausführungsbeispiel gemäß Fig. 25 in unterschiedlichen Stellungen,

Fig. 27

vergrößert das Detail C aus Fig. 26a,

Fig. 28

eine weitere Stellung des Aufnahmeelementes gemäß Fig. 25,

Fig. 29a bis 29d

unterschiedliche Stellungen des Aufnahmeelementes einer Verriegelungseinheit während eines normalen Öffnungsvorganges und

Fig. 30a bis 30g

unterschiedliche Stellungen des Aufnahmeelementes der Verriegelungseinheit nach einer Fehlbedienung durch einen Benutzer.

Further advantages and details of the invention will be explained in more detail with reference to the following description of the figures with reference to the embodiments illustrated in the drawings. It shows:

Fig. 1

a piece of furniture with a movably mounted furniture part,

2a and 2b

An embodiment of the invention with an adjustable in the depth of the furniture receiving element,

Fig. 3

the carcass rail of a guide system for the movably mounted furniture part,

Fig. 4

an ejection device in an exploded view.

Fig. 5

an embodiment of an engagement element,

Fig. 6

perspective view in a plan view of the underside of a first embodiment of a movably mounted furniture part with a locking device having two mutually coupled locking units,

Fig. 7a and 7b

in a plan view of the embodiment Fig. 6 in different positions of the movably mounted furniture part,

Figure 8

perspective view in a plan view of the underside of a second embodiment of a movably mounted furniture part with a locking device having two locking units, which are coupled via a synchronization mechanism and having an overload safety mechanism,

Fig. 9a and 9b

the embodiment Fig. 8 in a plan view of the underside of the movable furniture part in different positions,

Fig. 10

in perspective a first embodiment of a synchronization unit,

Fig. 11a and 11b

in a plan view of the embodiment Fig. 10 .

Fig. 12

in perspective, another embodiment of a synchronization unit,

Fig. 13

the embodiment Fig. 12 in an exploded view,

Figs. 14a and 14b

in a plan view of the embodiment according to Fig. 12 in different positions,

Fig. 15

perspective view in a plan view of the underside of a second embodiment of a movably mounted furniture part with a locking device having two locking units, which are coupled via a synchronization mechanism and having an overload safety mechanism,

Fig. 16a and 16b

perspective view in a plan view of another embodiment of a synchronization unit,

Figs. 17a and 17b

in a top and bottom view of another embodiment of a locking device having two locking units coupled via a synchronization mechanism,

Fig. 18

in an exploded view of a locking unit according to the embodiment according to Figs. 17a and 17b .

FIGS. 19a and 19b

in an exploded view and perspective another embodiment of a locking unit with a two-part formed receiving element and an overload-securing mechanism,

Figs. 20a and 20b

a detail of another embodiment of the invention with a locking unit according to FIGS. 19a and 19b .

Fig. 21 a and 21b

in perspective and in an exploded view, another embodiment of a receiving element with an overload safety mechanism,

Figs. 22a and 22b

in a plan view of the embodiment according to Fig. 21 a in different positions,

Figs. 23a and 23b

Another embodiment of a receiving element with an overload-securing mechanism,

Figs. 24a and 24b

in a plan view of the embodiment according to Fig. 23a in different positions,

Fig. 25

Another embodiment of a receiving element with an overload-securing mechanism,

Figs. 26a and 26b

in a plan view of the embodiment according to Fig. 25 in different positions,

Fig. 27

enlarges the detail C out Fig. 26a .

Fig. 28

another position of the receiving element according to Fig. 25 .

Fig. 29a to 29d

different positions of the receiving element of a locking unit during a normal opening operation and

Fig. 30a to 30g

different positions of the receiving element of the locking unit after a misuse by a user.

In Fig. 1 is generally a piece of furniture 1 with a movably mounted therein furniture part 2 shown. In this case, the opening of the formed by a drawer movable furniture part 2 via a touch-latch mechanism, ie the user presses the movable furniture part 2 by exercising force on the handleless front panel 3 of a closed end position E in the closing direction SR of the movable furniture part 2 by a predetermined Distance further into the furniture 1, whereby the locking of an ejection device is released and the movable furniture part. 2 is extended by the ejector in an open position from the furniture 1.

The Fig. 2a and 2b show in sections a bottom view of a movably mounted in a furniture 1 furniture part 2. In this case, the movable furniture part 2 by means of a drawer rail 23 movable in a furniture body 4 of the furniture 1 fixedly arranged cabinet rail 13 is movably guided. On the underside 25 of the movable furniture part 2, a locking device 5 for locking the movable furniture part 2 in a closed end position E is arranged in the region of the front panel 3. The locking device 5 comprises a locking unit 6 with a receiving element 7, which is at least in the closed end position E with a stationary on the carcass rail 13 arranged engagement member 8 is engaged.

In order to be able to change the front gap F, which corresponds to the distance between the front panel 3 and the furniture body 4 when the end position E of the movable furniture part 2 is closed, and thus the triggering path for the touch-latch mechanism is in the illustrated embodiment according to Fig. 2a and 2b the receiving element 7 for the engagement element 8 is arranged on a linearly movably mounted in a base part 11 of the locking unit 6 sliding part 10 and the locking unit 6 has an adjusting device 9, by means of which the relative position of the receiving element 7 to the engagement element 8 in the depth of the cabinet 1 is variable , on.

The adjusting device 9 is designed to convert a rotational movement into a translatory movement and has a rotatably mounted actuating element 12, whose axis of rotation f is substantially normal to the main plane of the locking unit 6 and which acts directly on the linearly movable sliding part 10 in the embodiment shown.

Starting from the in Fig. 2a shown position with the front gap F between the front panel 3 and the furniture body 4 and the distance A between the sliding part 10 and the base part 11 of the locking unit 6 can therefore be changed by turning the actuating element 12 of the adjusting device 9, the relative position of the receiving element 7 to the engagement element 8 so that, as in Fig. 2b shown, a larger front gap F 'and a smaller distance A' between the sliding part 10 and the base part 11 of the locking unit 6 results. Of course, this change in position of the receiving element 7 to the engagement element 8 can take place in both directions, wherein the value of the front gap F, F 'to the value of the distance A, A' inversely proportional behavior, ie, the front gap F, F 'larger, decreases in size the same extent the distance A, A 'between the sliding part 10 and the base part 11, and vice versa. This advantageous embodiment of the locking device 5 and the arrangement thereof on the bottom 25 of the movable furniture part 2 in the front panel 3, the user in a simple manner, the front gap F, F 'and thus the position of the movable furniture part 2 in the closed end position E without tools change or adjust.

The furniture body 4 to be arranged or arranged carcass rail 13 is in Fig. 3 shown. On the carcass rail 13, the engaging member 8 and the rear end portion of an ejector 18 is disposed in the rear end portion, wherein the mounting of the carcass rail 13 in the furniture 1 takes place such that the engagement element 8 is located in the front of the furniture front.

In Fig. 4 is in an exploded view of the ejector 18 is shown, in the illustrated embodiment, a two-part housing 21, 21 ', in which an acted upon by a force accumulator 19 ejector 20 is movably mounted with a stop 22 formed thereon. The locking of the ejection device 18 takes place in this embodiment via the engagement element 8, which is locked in the closed end position of the movable furniture part 2 by means of the receiving element 7 of the locking unit 6. After unlocking the ejector 18, that is, when the engagement member 8 is released from the locking unit 6, the energy accumulator 19 discharges and moves in this way the ejection element 20, its movement over the stop 22 on the drawer rail 23 or directly on the movable furniture part 2 is transmitted.

This in Fig. 5 illustrated engaging member 8 has a plate-shaped base member 14 which is positively connected via the formed on a projection 16 locking head 17 with the carcass rail 13 and connected. In the latching head 17 opposite end portion of the engagement member 8 is on the plate-shaped Base member 14 a pin 15 is arranged, whose longitudinal axis L is substantially normal to the main plane of the base member 14. When the end position E of the movable furniture part 2 is closed, the engagement element 8 engages via the pin 15 in engagement with the receiving element 7 of the locking unit 6, whereby on the one hand the movable furniture part 2 is locked in its closed end position E and on the other hand the ejection device 18 is locked.

Fig. 6 shows an oblique view of the underside of a movable furniture part 2. In this case, the movable furniture part 2 is formed by a drawer, wherein on the bottom 25 in the front panel 3, a locking device 5 is arranged. The locking device 5 has two locking units 6, which are coupled by means of a synchronization mechanism 24. Both locking units 6 each have a receiving element 7, which are in each case with a arranged on the two body rails 13 engagement element 8 in engagement. The movable furniture part 2 is movably mounted in the carcass rail 13 via a drawer rail 23.

In the Fig. 7a and 7b is the embodiment according to Fig. 6 shown in two different positions of the movable furniture part 2. It shows Fig. 7a the movable furniture part 2 in the closed end position E and are the two receiving elements 7 of the locking units 6 with the arranged on the body rails 13 engagement elements 8 in engagement. The coupling of the locking units 6 by means of the synchronization mechanism 24 via coupling elements 26 which are rod-shaped in the embodiment shown and pivotally connected at one end to the receiving elements 7 and at its other end pivotally connected to the synchronization unit 27.

Now, starting from the in Fig. 7a shown, the closed end position E the movable furniture part 2 pressed by a force on the front panel 3 in the closing direction SR in the furniture body 4, the locking mechanism 31 is released and the locking between the receiving elements 7 and the engagement elements 8 is released, so that the receiving elements 7 of their in Fig. 7a shown second, the engagement element 8 arresting position s ₁ by means of Ejector in a second, in Fig. 7b shown, the engagement member 8 releasing position s _{2 are} pivoted.

By the coupling of the two arranged on opposite sides of the movable furniture part 2 locking units 6 via a synchronization mechanism 24 ensures that the lifting of the lock and thus the triggering of the ejector substantially simultaneously takes place, regardless of where the front panel 3 of the user necessary release force in the closing direction SR of the movable furniture part 2 applies.

For this purpose, the synchronization mechanism 24 has a synchronization unit 27, the receiving elements 7 of the locking units 6 being in communication with the synchronization unit 27 via coupling elements 26 which are coupled in opposite directions by means of the synchronization unit 27.

At the in Fig. 7a and 7b illustrated embodiments, after the release of the locking mechanism 31, the receiving member 7 shown in the picture on the right pivoted by the extension movement of the movable furniture part 2 to the right and pulls on the coupling element 26, the rack 30 of the synchronization unit 27 also to the right. The second rack 30 of the synchronization unit 27 is shifted to the left in the image via the synchronization element 29 formed by a gearwheel in the illustrated embodiment, whereby the coupling element 26 shown on the left of the image moves in the opposite direction via the synchronization unit 27 from right to left and moves the left receiving element 7 forward is pivoted to the left. In the opposite sense motion coupled means in the illustrated embodiment, both a reversal of the direction of movement and a change between tensile and shear force.

Fig. 8 shows a further embodiment in which the locking units 6 additionally comprise an overload-securing mechanism 32, which allows a damage-free opening of the movable furniture part 2, even if the receiving element 7 is fixed by means of the locking mechanism 31 in a second engagement element 8 arresting position s ₁ .

This is how out Fig. 9a can be seen, the receiving element 7 is formed in two parts, wherein the base member 43 and the locking member 44 are rotatably connected to each other and the locking mechanism 31 acts on the base member 43. The base member 43 and the locking member 44 of the receiving element 7 form in this embodiment, the two rotatable with each other, pivotable between a first and a second end position parts of the overload-locking mechanism 32, wherein between the base member 43 and the locking member 44, a holding device 33 acts. The operation of the overload safety mechanism 32 will be described with reference to FIGS Fig. 30a to 30g will be explained in more detail.

In the in the Fig. 9a and 9b shown positions was the opening of the movable furniture part 2 by applying the release force on the front panel 3 in the closing direction SR ( Fig. 9a ), whereby the locking mechanism 31 is released and a triggering of the overload-securing mechanism 32 is not necessary. Incidentally, this corresponds to the Fig. 9a and 9b shown embodiment of the embodiment according to Fig. 7a and 7b , which is why a further detailed description is omitted.

A first preferred embodiment of a synchronization unit 27 is shown in perspective in FIG Fig. 10 shown. The synchronization unit 27 comprises a base element 28 on which a synchronization element 29 is rotatably mounted. In the embodiment shown, the synchronization element 29 is formed by a gear and are on the base member 28, two racks 30 on opposite sides of the synchronizing element 29, in the same engaging, mounted in the guide tracks translationally movable.

Fig. 11a and 11b show in a plan view two different positions of the synchronization unit 27 according to Fig. 10 , Starting from the position according to Fig. 11a are at a pivoting of the receiving elements 7 of the locking units 6, the two racks 30 in opposite directions moved or pulled ( Fig. 11b) , wherein the opposing movement of the racks 30 coupled via the rotating synchronizing element 29 and synchronized.

For attaching the synchronization unit 27 on the movable furniture part 2, the base member 28 has passage openings 34, which are formed in the embodiment shown in the form of elongated holes on. The connection of the synchronization unit 27 with the coupling elements 26 via receiving openings 35 which are formed in the outer end portions of the racks 30.

Another embodiment of a synchronization unit 27 is in the Fig. 12 to 14b shown. In the Fig. 12 perspective synchronization unit differs from the embodiment according to Fig. 10 in that the base element 28 is formed in two parts. How out Fig. 13 , which is an exploded view of the in Fig. 12 shown, the base member 28 has a base member 41 and an intermediate member 42, wherein the synchronizing element 29 and the two racks 30 are arranged on the intermediate element 42.

In this embodiment, the base member 41 has two passage openings 39 for receiving fastening means 36, with which the base member 41 is attached to the movable furniture part 2, on. The likewise arranged on the base member 41 receiving openings 40 are used to attach the intermediate member 42 on the base member 41. For this purpose 42 slots 34 are arranged on the intermediate element, in the embodiment shown, the attachment of the intermediate element 42 on the base member 41 via a guide pin 38 and a fastener 37 ,

By this design it is avoided that the racks 30 and the coupling elements 26 by the screwing of the base member 28 on the bottom 25 of the movable furniture part 2, for example, on the shelf of a drawer, brace. Due to the two-part design of the base member 28, the base member 41 can be mounted on the underside 25 of the movable furniture part 2 in a first step, wherein the fastener formed by a clamping screw 37 for locking the intermediate member 42 is first solved and only after the assembly of the synchronization unit 27 is tightened on the movable furniture part 2 in a further step, which allows a substantially stress-free installation of the synchronization unit 27.

The Fig. 14a and Fig. 14b show two different mounting positions of the synchronization unit 27 according to Fig. 12 , according to Fig. 14b the base member 41 and the intermediate member 42 cover and according to Fig. 14a the intermediate member 42 is shifted to the right with respect to the base member 41.

This in Fig. 15 illustrated embodiment differs from the embodiment according to Fig. 9a in the formation of the synchronization unit 27. As in particular from the Fig. 16a and 16b can be seen, the synchronization element 29 is formed in this embodiment of a two-armed lever having receiving openings 35 for connection to the coupling elements 26 in its two opposite end portions.

The synchronization element 29 is in turn mounted rotatably on the base element 28. As in the above-described embodiments, the movements of the receiving elements 7 are transmitted via the coupling elements 26 to the synchronization unit 27, however, in this embodiment, the coupling elements 26 are connected directly to the synchronization element 29. Just as in the embodiments with two racks 30 and a gear, the two coupling elements 26 are in the opposite direction to motion coupled via the synchronizing element 29 formed by a two-armed lever in this embodiment.

A locking device 5, in which the two locking units 6 via a synchronization mechanism 24, which has a synchronization unit 27 and two coupling elements 26, are coupled together synchronously, is in Fig. 17a in a plan view from above and in Fig. 17b shown in an oblique view from below. In this case, the synchronization element 29 of the synchronization unit 27 is formed by a two-armed lever.

The locking unit 6 according to the embodiment according to Fig. 7a and 17b is in Fig. 18 shown in an exploded view. The attachment of the Locking unit 6 on the movable furniture part 2 via the base part 11, in which a sliding part 10 is arranged to be linearly movable. The change in the position of the sliding part 10 with respect to the base part 11 via an adjusting device 9, which has an actuating element 12. The actuating element 12 is rotatably mounted on the base part 11 about the axis of rotation f and has on its side facing the sliding part 10 a spiral guide track, not shown, which is operatively connected to the sliding part 10 arranged guide means 47, ie, a rotation of the actuating element 12 causes a linear Displacement of the sliding part 10.

On the sliding part 10, the receiving element 7 is rotatably mounted about the axis of rotation d, wherein in the embodiment shown, the receiving element 7 is formed in two parts and a rotatably mounted base member 43 and a pivotally connected to the base member 43 locking member 44 has. The base member 43 and the locking member 44 simultaneously form the two pivotally connected parts of an overload mechanism 32 and are connected to each other via a holding device 33 formed by a tension spring.

The locking mechanism 31 for locking the receiving element 7 in a position arresting the engagement element s ₁ in the illustrated embodiment comprises a slide track 45 and acts between the linearly movable sliding part 10 and rotatably mounted thereon, acted upon by a spring 46 receiving element. 7

Another embodiment of a locking unit 6 is in an exploded view in Fig. 19a and in a perspective view in FIG Fig. 19b shown. The embodiment according to FIGS. 19a and 19b differs from the embodiment according to Fig. 18 only by a different shape of the parts. The operation of the locking unit 6 corresponds to the operation according to the above-described embodiment, which is why a further detailed description is omitted.

The Figs. 20a and 20b each show a arranged on a movable furniture part 2 locking unit 6 according to Fig. 19b , wherein the locking unit 6 is respectively engaged with the engaging member 8 and is coupled via a coupling element 26, which is part of a synchronization mechanism 24, with a second, arranged on the opposite side of the movable furniture part 2 locking unit 6.

It was based on the in Fig. 20a shown position by turning the actuating element 12 of the adjusting device 9 of the front gap F or the distance A between the sliding part 10 and the base member 11 is changed, resulting in a larger front gap F 'and a smaller distance A' results ( Fig. 20b ), ie. the position of the movable furniture part 2 in the furniture body 4 in the depth of the furniture 1 can be adjusted by turning the actuating element 12 of the adjusting device 9 in a simple manner by the user.

In the in the Fig. 21a to 22b illustrated embodiment, the two rotatably connected parts of the overload-locking mechanism 32 are in turn formed by a base member 43 and a locking element 44 of a receiving element 7. In contrast to the embodiments according to Fig. 18 and 19 in this embodiment, the holding device 33 is formed in two parts, wherein a part 50 on the locking element 44 and the second part 51 is arranged on the base member 43. In this case, the first part 50 of the holding device 33 is designed as a latching head and the second part 51 of the holding device 33 as a latching receptacle, so that the holding device 33 acts positively.

Fig. 21a shows the embodiment in perspective in an open position of the holding device 33, Fig. 21b an exploded view of the holding device 33 according to Fig. 21a. Fig. 22a shows the arrangement principle of the embodiment according to Fig. 21 That is, the movable furniture part 2 is in its closed end position E, so that the locking element 44 locks the pin 15 of the engagement element 8. Now, if the movable furniture part 2 is pulled by the user in the opening direction OR, without the locking mechanism 31 is previously canceled by pressing the movable furniture part 2 in the closing direction SR, opens the holding device 33 by the force exerted by the pin 15 on the locking member 44 that is, the positive connection between the parts 50 and 51 becomes lifted and the movable furniture part 2 can be brought into an open position without the receiving element 7 is damaged.

That in the Fig. 23a to 24b shown embodiment of a receiving element 7 with a locking mechanism 31 works analogous to that in the Fig. 21a to 22b shown embodiment. The embodiment according to Fig. 23a to 24b differs from the embodiment according to Fig. 21a to 22b in the manner of the two parts 50, 51 of the holding device 33. In this embodiment, the two parts 50 and 51 of the holding device 33 are formed by two magnets, which exert on each other an attractive effect.

A very similar embodiment is in the Fig. 25 to 28 shown. Again, this embodiment differs in the nature of the two parts 50, 51 of the holding device 33, wherein the first part 50 of the holding device 33 is formed by a magnet, while the second part 51 of the holding device 33 is formed by a metallic counter-pole in the form of a bracket , which is arranged on two springs 52 mounted on the base member 43 of the receiving element 7.

This design has the advantage that the break-off force between the two parts 50, 51 of the holding device 33 is increased, since - in particular from the FIGS. 26a and 27 it can be seen - when a separating force between the two parts 50, 51, first an inclined position of the part 51 of the holding device 33 takes place before the part 50 actually tears off. As a result, on the one hand, the effectiveness of the ejection device can be increased and, on the other hand, a rebound of the movable furniture part 2 when closing by means of the holding device 33 can be at least partially intercepted.

In the Fig. 29a to 29d are different positions of the receiving element 7 of the locking unit 6 according to the embodiment according to Fig. 20a during a normal opening process described. As a normal opening operation while the release of the lock is understood by pressing the movable furniture part 2 in a lying behind the closed end position E position by the user.

Starting from Fig. 29a in which the movable furniture part 2 is in its closed end position E and is held therein by the locking unit 6, wherein the locking element 44 of the receiving element 7 locks the pin 15 of the engaging element 8 and fixes the base element 43 of the receiving element 7 by means of the locking mechanism 31 is the user exerted a force on the front panel 3 in the closing direction SR of the movable furniture part 2 until the movable furniture part 2, the in Fig. 29b has reached the triggering position shown.

Moving the movable furniture part 2 into the release position releases the locking mechanism 31 formed by a slide track 45, as a result of which the base element 43 is pivoted so that the journal 15 of the engagement element 8 is released by the locking element 44 (FIG. Fig. 29c ) and the movable furniture part 2 by means of the ejection device in an open position, as in Fig. 29c is shown, driven.

In the Fig. 30a to 30g are different positions of the receiving element 7 of the locking unit 6 according to the embodiment according to Fig. 20a displayed in the event of operator error. An incorrect operation is understood to mean that the user pulls out the movable furniture part 2 from the furniture body 4, without previously lifting the locking of the engagement element 8 by the receiving element 7 by pressing the movable furniture part 2.

It shows Fig. 30a again the starting position, in which the movable furniture part 2 is in its closed end position E. Will now, as in Fig. 30b shown, the movable furniture part 2 pulled directly in the opening direction OR, the locking element 44 of the receiving element 7 is rotated or pivoted due to its abutment on the pin 15 of the locking element 8 about the axis of rotation e and against the force of the holding device formed in this embodiment by a tension spring 33rd

In Fig. 30c the pin 15 of the engagement element 8 has already left the receiving region 48 of the locking element 44, as a result of which the locking element 44 is returned by means of the holding device 33, ie, by the tension spring which relaxes is swung back ( Fig. 30d ). In this position, therefore, the movable furniture part 2 is in an open position, wherein the locking mechanism 31 is not canceled for the base member 43.

Will now be like in Fig. 30e shown, the movable furniture part 2 moves in the closing direction SR in the furniture body 4, moves the locking element 44 on the pin 15 and is at a further moving in of the movable furniture part 2, the receiving element 7, as in Fig. 30f shown, pivoted, whereby the locking mechanism 31 is released and the base member 43 is pivoted due to the relaxing spring 46 in a pin 15 releasing position, whereby the movable furniture part 2 of the ejector 18, the energy storage 19 by moving in the movable furniture part. 2 was at least partially loaded, again in an open position ( Fig. 30g ).

The open position according to Fig. 30g after an incorrect operation by the user thus corresponds to the open position according to Fig. 29d after a normal opening process. In other words, in the event of misuse by use in a first step, the overload safety mechanism 32 comes into play, whereby the movable furniture part 2 - although the locking unit 6 has not been unlocked - can be opened without parts of the locking unit 6, in particular the receiving element 7, be damaged before the movable furniture part 2 is moved in a second step again in the closing direction SR in the furniture body 4. If then the receiving element 7 abuts the pin 15 of the engaging element 8, the locking mechanism acting on the locking unit 31 31 is released in a third step, whereby in a fourth step, the movable furniture part 2 is again guided in an open position due to the spring-loaded receiving element 7. In other words, the movable furniture part 2 must be closed twice after an incorrect operation, so that it is again in a closed end position E.

The illustrated embodiments of locking devices for locking a movable furniture part and lockable ejection devices for a movable furniture part are of course not to be understood in a limiting sense, but just a single example of numerous possibilities To realize inventive concept of a locking device or a lockable ejection device for a movable furniture part.

Claims (14)

1. A lockable ejector device for a furniture part (2) movably supported in an article of furniture (1), comprising an immobilization device (5) for arresting the movable furniture part (2) in a closed end position (E) and at least one ejector element (20) for moving the movable furniture part (2) out of the closed end position (E) into an open position, wherein the immobilization device (5) has at least two locking units (6) which are coupled together and each have a respective receiving element (7) for a respective engagement element (8), wherein the receiving elements (7) of the at least two locking units (6) are operatively connected together by way of a synchronization mechanism (24) both in a position (s₁) of arresting the engagement elements (8) and in a position (s₁) of releasing the engagement elements (8), wherein the synchronization mechanism (24) has at least two coupling elements (26) respectively associated with different locking units (6) and at least one synchronization unit (27), wherein the coupling elements (26) are motionally coupled by means of the synchronization unit (27), characterized in that each locking unit (6) has a blocking mechanism (31) - which is separate from the engagement element (8) - for releasably fixing the receiving element (7) in the position (s₁) of arresting the engagement element (8).
2. An ejector device as set forth in claim 1 characterized in that the at least two coupling elements (26) are motionally coupled in opposite relationship by means of the synchronization unit (27).
3. An ejector device as set forth in claim 1 or claim 2 characterized in that the synchronization unit (27) has a stationarily arranged base element (28) on which a synchronization element (29) is rotatably movably supported.
4. An ejector device as set forth in claim 3 characterized in that the base element (28) is at least of a two-part structure and has a main element (41) and an intermediate element (42), wherein the synchronization element (29), preferably formed by a gear, is rotatably supported on the intermediate element (42).
5. An ejector device as set forth in claim 4 characterized in that the synchronization unit (27) has two racks (30) which are mounted movably with a translatory movement on the base element (28) and which are in engagement on opposite sides with the synchronization element (29) and are or can be respectively connected in an end portion to a coupling element (26).
6. An ejector device as set forth in claim 3 or claim 4 characterized in that the synchronization element (29) is formed by a double-armed lever which is or can be connected in its two end portions to a respective coupling element (26).
7. An ejector device as set forth in one of claims 1 through 6 characterized in that the immobilization device (5) and the synchronization mechanism (24) are arranged on the movable furniture part (2) and the engagement elements (8) are stationary arranged on the article of furniture, preferably at the underside (25) of the movable furniture part (2).
8. An ejector device as set forth in one of claims 1 through 7 characterized in that the relative position of the receiving elements (7) of the coupled locking units (6) with respect to the engagement elements (8) is linearly variable in respect of the depth of the article of furniture (1) by means of at least one displacement device (9) adapted to convert a rotary movement into a translatory movement.
9. An ejector device as set forth in claim 8 characterized in that at least one locking unit (6) includes a slide portion (10) which is supported linearly movably with respect to a base portion (11) and on which the receiving element (7) is arranged, wherein the displacement device (9) for altering the relative position of the receiving element (7) is of such a configuration and arrangement that it acts directly on the slide portion (10).
10. An ejector device as set forth in one of claims 1 through 9 characterized in that locking of the ejector device (10) is effected by means of the blocking mechanism (31) for the receiving element (7).
11. An ejector device as set forth in one of claims 1 through 10 characterized in that the ejector device (18) or the ejector element (20) is arranged on the locking unit (6).
12. An ejector device as set forth in one of claims 1 through 10 characterized in that the ejector device (18) or the ejector element (20) is arranged separately from the immobilization device (5) on the movable furniture part (2) or on the article of furniture (1).
13. An ejector device as set forth in claim 12 characterized in that the ejector device (18) or the ejector element (20) is arranged in the guide system for a drawer forming the movable furniture part (2), preferably on the carcass rail (13).
14. An article of furniture comprising a lockable ejector device as set forth in one of claims 1 through 13.

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