TW201311989A - Device for drawing a movable furniture part into a center position - Google Patents

Abstract

The present invention discloses a device (1) for drawing a movable furniture part, especially drawing into a center position, which comprises a transmission device (20) that can be moved horizontally in the shell (10) of the device, and a horizontally movable center sliding base (30) coupled to the transmission device. The device has another two lateral sliding bases (40, 50) that can be moved horizontally and spaced each other by some distance in a moving direction x, wherein the lateral sliding bases (40, 50) cab be coupled each other through an energy storage mechanism (70). The energy storage mechanism can exert an acting force from one lateral sliding base (40, 50) of the lateral sliding bases (40, 50) toward the other lateral sliding base (40, 50) of the lateral sliding bases (40, 50). A control sliding block (400, 500) is disposed at each lateral sliding base set (40, 50). When the center sliding base (30) stars to move from the center position, the lateral sliding base (40, 50) in the moving direction of the center sliding base (30) of the lateral sliding bases (40, 50) can be coupled to the center sliding base (30) under the operation of the control sliding block. And the other lateral sliding base (40, 50) of the lateral sliding bases (40, 50) is fixedly mounted on the shell (10).

Description

Device for pulling a movable furniture part into a neutral position

The present invention relates to a device for pulling a movable furniture portion, particularly a sliding door, into a neutral position.

There are a variety of pull-in devices in the furniture field that automatically pull a drawer or furniture door from a defined position into a closed position. On some furniture with sliding doors, the sliding door can be opened from the closed position in two different (usually opposite) directions. The closed position in this case is also called the middle position. If it is provided, for example, that two or more sliding doors for furniture entrance are closed, it is advantageous to make the inner sliding door have the aforementioned mobility.

In order to automatically pull in the neutral position from both directions in a restrained manner, the publication DE 20 2010 007 230 U1 discloses a two-way pull-in device with two reverse-acting one-way pull-in units and a longitudinal and flipping movement The coupling slides work together. When the sliding door is moved from the middle position, the coupling slide moves in the opening direction by the transmission protrusion on the sliding door and cooperates with one of the one-way pulling units, depending on the specific movement direction. Due to the movement in the opening direction, the pull-in spring of the corresponding pull-in unit is tensioned to a point at which the actuator of the pull-in unit that engages the coupling slide is turned over toward the latching position. This process also uncouples the coupling slide from the pull-in unit. When the door is moved further in the corresponding opening direction, tilting occurs in the pull-in device, and the coupling element moves away from the drive projection of the sliding door and disengages from the sliding door. At this point, the sliding door can be moved further. The second pass of the sliding door when the sliding door returns to the middle position for closing movement The movable projection contacts the respective coupling element of the coupling carriage and moves together with the coupling carriage in the closing direction. The coupling slide snaps into the latching actuator of the tensioned pull-in device, thereby releasing the latch. The pull-in device is triggered in the manner described above by pulling the spring and using a damping element to pull the coupling slide into the neutral position in a restrained manner. When the sliding door is moved from the middle position, the same process is carried out in the opposite direction mirror symmetrical and different unidirectional pull-in units are used.

A disadvantage of such a two-way pull-in device is the use of two unidirectional independent pull-in units. Due to the high degree of mechanical complexity of the independent latching assembly and the need for damping elements, the cost of using two separate pull-in units is high.

In view of the above, it is an object of the present invention to provide a device for pulling a movable furniture portion into a central position without the use of a unidirectional independent pull-in device.

The solution of the present invention for achieving the above object is a pull-in device having the features of claim 1 of the patent application.

A device of the type previously described herein has an actuator that is laterally movable within the housing of the device, and a laterally movable intermediate carriage coupled to the actuator. The device further has two laterally movable side sliding seats, the side sliding seats are spaced apart by a certain distance in the moving direction, wherein the side sliding seats are coupled to each other through an energy storage mechanism, and the energy storage mechanism is opposite to the side sliding seat Apply a force that brings it close. Wherein, a control slider is disposed for each of the side slides, and when the middle slide moves from the middle position, the side slides The side slide in the direction of movement of the middle slide is coupled to the middle slide by the control slider, and the other side slide of the side slides is fixed to the housing.

The control slider can be used to couple the middle sliding seat to one of the two side sliding seats, depending on the moving direction of the middle sliding block (ie, the moving direction of the actuator and the movable furniture portion). The other side slide is fixed to the housing. Therefore, when the furniture part is moved from the middle position, the distance between the two side slides is increased, and this point is independent of the moving direction. In this case, the energy storage mechanism disposed between the side slides can be effective for any of the directions of motion. Therefore, the pull-in device of the present invention may include only one energy storage mechanism.

According to an advantageous embodiment of the device, the side slides are also coupled by a damping unit which suppresses the relative movement of the side slides. Therefore, a damping function is also achieved during the implementation of the automatic pull-in, wherein here too only a damping element is required to achieve this.

According to a further advantageous embodiment of the device, the control slides are respectively guided in a control slide guide groove of the side slides in a direction transverse to the movement direction x, the control slides respectively Having a coupling pin and a guide pin, the control sliders are engaged with the coupling groove of the middle sliding seat to couple the middle sliding seat with the corresponding side sliding seat, and the control slider utilizes the guiding The pin snaps into the control track of the housing. Thereby, the movement of the control sliders can be coupled with the position of the side slides in a simple and reliable manner, thereby facilitating reliable control of the coupling of the middle slides and the side slides.

According to a preferred embodiment, the coupling slot has at least one moving toward the moving side To the inclined section. This helps to smooth the control slider.

According to a further advantageous refinement of the device, the actuator is fastened to the outer casing in an outer open position in an open position at a distance from the central position. Fixing the actuator to the housing can achieve the purpose of fixing the middle sliding seat and the side sliding seat that moves together, so that the mechanism stays in the open position until a pulling process toward the middle position Triggered.

According to a further advantageous refinement of the device, the transmission has two-sided jaws which are embodied as actuators which surround the door fitting. Preferably, the actuator is guided in a guiding track of the housing, wherein at least one of the outer regions of the guiding track is curved such that the actuator in one of the open positions is located in the guiding track In the outer zone, the actuator surrounded by the actuator in the neutral position is unlocked. In this way, a simple coupling of the device to the movable furniture part, such as a sliding door, can be achieved. It is only necessary to fix the actuator on the piece of furniture to couple the piece of furniture to the pull-in device between the neutral position and the open position.

According to a further advantageous refinement of the device, the claws can be pivoted and pivoted onto the components of the transmission and guided together with the guide pins in the curved guide rail, wherein each of the open positions has One of the jaws is flipped relative to the component in the actuator. With this design, the oscillator can be coupled and disengaged with the actuator.

The invention will now be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The drawing device of the present invention is in a different work. Examples of locations and different views. The same element symbols in all the drawings denote the same elements. For the sake of clarity, not every element in the figures is identified by the element symbol.

1 to 3 are schematic views of the pull-in device in different positions, wherein each of the drawings A does not show a hidden line, and the corresponding drawing B partially shows the hidden line in a broken line form. 4 and 5 are schematic views of the position of FIG. 1A, in which various components of the pull-in device are not shown in FIGS. 4 and 5 in order to facilitate identification of the underlying components. In this sense, Figures 4 and 5 are intermediate steps in the installation process of the pull-in device. Moreover, in order to facilitate understanding of the structure of the pull-in device, the upper housing cover is not shown in all of the drawings.

In the following description of the drawings, terms such as up, down, left, right, front, and back are only for the exemplary views selected for the drawings. These terms are defined by the context of the accompanying drawings and are not to be construed as limiting.

The drawing shows a pull-in device 1 (see Figure 1) that interacts with the door fitting 2. The pull-in device 1 is hereinafter referred to as the device 1 for short. The door fitting 2 is fixed directly or indirectly to a movable sliding door (not shown), for example, in a fastening wedge 3 located in a corresponding through hole of the sliding door or its moving part. The bottom end of the door fitting 2 has a rod-like actuator 4 that interacts with the pull-in device 1. The sliding door is arranged to move to the right and to the left in terms of the illustrated plane of the drawing. The guide rail for carrying the sliding door is also not shown in the figure. Hereinafter, the moving direction of the sliding door is also referred to as the pulling direction, that is, the x direction, wherein the rightward movement indicates a positive x value motion, and the leftward motion indicates a negative x value motion. When the door fitting 2 moves with it, the device 1 is mounted directly or indirectly in a positionally fixed manner, for example, on the furniture body, the main body side rail, or the main body side head. Alternatively, the arrangement may be reversed, i.e., the actuator position is fixedly disposed on the furniture body, and the device 1 may be fixed to the sliding door and laterally moved with the sliding door. With this arrangement, the same effect as the position-fixed device 1 of the present embodiment can be achieved.

The device 1 has a housing 10 in which only the lower housing of the housing is shown. Both the lower case of the housing and the upper case, not shown, are preferably integrally formed, for example, in a plastic injection molding process. The housing 10 is provided with a reinforcing connecting plate 17 (see Fig. 4), which also functions as a dustproof and anti-seepage effect. The device 1 has an actuator 20 that projects partially beyond the housing 10, and the actuator 4 of the door fitting 2 interacts with the actuator 20. The actuator 20 has a middle part 21 and side jaws 22, 23 hinged to the middle part 21. A linear guide rail 11 for lateral movement of the intermediate member 21 (i.e., the actuator 20) is provided in the housing 10. In the case shown in the figures, the middle part 21 is snapped into the linear guide track 11 by its two guide pins. At the same time, the guide pins constitute the axis of rotation of the hinged jaws 22, 23. Each of the claws 22, 23 is inserted into another guide pin spaced apart from the corresponding hinge point by a guide rail 12 which is curved at one end of the housing 10 and has a straight line in the middle portion. collective effect. Of course, the actuator 20 can also be implemented in an embodiment different from that shown in the drawings. For example, the guide pins can take other shapes, numbers, and/or locations in the actuator 20. In the position shown in Figure 1, the jaws 22, i.e. 23, enclose the actuator 4 of the door fitting 2. When the actuator 20 is moved laterally, the shape of the opening (Maul) formed in the above manner and surrounding the actuator 4 is first maintained. Only when the seekers of the jaws 22 and 23 slide into the curved section of the guide rail 12, the respective jaws 22, 23 are laterally turned over and the opening is opened, so that The actuator 4 is unlocked in the corresponding direction. This can be seen from the rightward movement shown in Figures 2A and 2B and the leftward movement shown in Figures 3A and 3B.

The device 1 additionally has three slides which are also capable of lateral movement: a middle slide 30, a left side slide 40 and a right side slide 50. A linear slide guide rail 13 for laterally guiding the above-described three slides 30, 40, 50 is provided in the housing 10. A central housing dome 14 is also provided for guiding, which can also be used to receive screws for connecting the housing halves of the housing 10.

The carriages 30, 40, 50 are arranged opposite each other in different parallel planes. The side slides 40, 50 abut against the lower housing of the housing and are guided in the carriage guide track 13 of the lower housing of the housing. Thus, the side slides 40, 50 are in the first plane. As can be seen from Figure 4, the device 1 of Figure 4 does not show the intermediate carriage 30. The intermediate carriage 30 is in a second plane in a manner partially overlapping the side slides 40, 50. The guide groove 31 of the intermediate carriage 30 passes through the housing dome 14, and the contour 32 of the intermediate carriage 30 connects the respective contours 41, 51 of the side slides 40, 50. In addition, the carriages 30, 40, 50 can be laterally guided by respective guide rails of the upper casing of the casing.

The upper half of the middle slide 30 is provided with left and right stop grooves 33 and 34, and the guide pins of the actuator 20 abut against the outer side walls of the stop grooves, so the middle slide 30 The lateral movement is coupled to the lateral movement of the actuator 20. As shown in Figures 2A, 2B and 3A, 3B, at the end of the lateral movement of the actuator 20, i.e., when the actuator is moved to the curved portion of the guide track 12, the guide pins sneak into the corresponding stop grooves 33, 34. The lower half, thereby locking the lateral movement of the actuator 20 and the intermediate carriage 30 on the housing 10. After the actuator 4 is unlocked, the actuator 20 and the middle slide 30 remain in FIGS. 2A, 2B and 3A. The left open position or the right open position shown in 3B. Only when the actuator 4 performs the return movement, that is, the opened jaws 22, 23 are again raised along the curved guide rail 12 and the opening of the actuator 20 is closed, the actuator 20 and the middle carriage 30 are no longer fixed. On the housing 10.

The side slides 40, 50 have control slider guide grooves 42 and 52 extending perpendicularly to the lateral movement direction x, and a control slider 400 and 500 respectively move back and forth along the y direction in the guide grooves (refer to FIG. 4). . The control sliders 400, 500 are used to couple the middle slider 30 with the left side slider 40 and the right side slider 50. To this end, the control sliders 400, 500 respectively have coupling pins 401 and 501 that protrude beyond the plane of the drawing toward the center slider 30. The coupling pins 401, 501 interact in the y direction with the coupling grooves 35 and 36 in the respective left and right regions of the middle carriage 30, depending on where the control sliders 400, 500 are located. In order to move the control sliders 400, 500, the control sliders also have guide pins 402 and 502 that face the lower housing of the housing 10. The guide pins are respectively guided in the left and right control rails 15, 16 disposed in the housing 10. The sections of the control rails 15, 16 facing the center of the device 1 are curved. Thereby, the lateral movement of the side slides 40, 50 can be restricted in the direction facing the center. In addition, when the side slides 40, 50 are in the inner stop position, that is, when the right side slide 50 is in the left stop position or the left side slide 40 is in the right stop position, the sliders 400, 500 are controlled. It can be moved downward, i.e., away from the actuator 20, in a negative y direction. The coupling grooves 35, 36 of the middle carriage 30 are exposed downward (i.e., away from the actuator 20), so that the control slider 400 or 500 pushed in the direction of the actuator 20 causes the middle carriage 30 to be on the left or right side. Slide 40 or The 50 coupling, and the control sliders 400, 500 that are pushed away from the direction of the actuator 20 will uncouple the middle carriage 30 from the corresponding side carriage 40 or 50.

Therefore, when the sliding door is moved to the right from the position shown in FIG. 1, the left side slider 40 is fixed to the right side of the housing 10 by the control slider 400 which is pushed downward in the negative y direction. In the position, and out of the middle slide 30. The control slide 400 is moved to the curved region of the control track 15 with the aid of the obliquely distributed upper section 37b of the stop groove 35. The right side slide 50 is coupled to the middle slide 30 by a right control slider 500 that is pushed up into the coupling groove 36 in the positive y direction, and moves to the right together with the middle slide, see FIG. . The control slider 500 enters the stop groove 36 with the aid of the obliquely distributed lower section 38a of the stop groove 36. In the right stop position (also referred to as the open position), the corresponding guide pin sneaks into the curved region of the guide rail 12, and the opening of the filler 20 is opened by the movement of the right claw 23.

As shown in FIGS. 3A and 3B, when the actuator 4 moves leftward from the position shown in FIGS. 1A and 1B, the right side slide 50 is fixed in mirror symmetrical manner in its left stop position and is disengaged from the middle slide. 30, while the left side slide 40 is coupled to the middle carriage 30 and moved to the left under the action of the upwardly pushing control slider 300 until the left guide 22 guided by the curved guide rail 12 will drive the actuator 20. The opening is opened and the actuator 20, the middle slide 30 and the left side slide 40 are simultaneously fixed in the left final position. The control slide 500 enters the curved region of the control track 16 with the aid of the obliquely distributed upper section 38b of the stop groove 36. The control slide 400 enters the stop groove 35 with the aid of the obliquely distributed lower section 37a of the stop groove 35.

That is, when the actuator 20 and the sliding door are in the middle position, the sides The distance between the slides 40, 50 is small (see Figures 1, 4). When the sliding door or the actuator 20 is moved from the middle position, the distance between the two side slides 40, 50 is increased, which is independent of which opening direction is to be moved.

The side slides 40 and 50 are coupled by a damping unit 60 and a mechanical energy storage mechanism 70. To this end, the respective inner regions of the side slides 40, 50 have sockets 43 and 53 for receiving the ends of the damping unit 60. The damper unit 60 has at least one cylinder 62 and a piston rod 61 (see FIG. 5), wherein the socket 43 of the left side slide 40 is designed to be engaged with the head of the piston rod 61, for example, other sockets, for example, The socket 53 of the right side slide 50 is designed to connect the cylinder 62 of the damping unit 60 with the corresponding side slide 50. The damper unit 60 employs a conventional embodiment such that the piston rod 61 can be pulled out of the cylinder 62 without applying a force as much as possible, but the piston rod 61 is pressed into the cylinder 62 in a suppressed manner. As far as the movement of the sliding door is concerned, the significance of this point is that the movement of the door from any position in the direction of movement is not suppressed, and the movement of the center position is suppressed. Of course, the two movements can also be suppressed and the degree of inhibition is different depending on the situation.

The side slides 40, 50 are also connected by the energy storage mechanism 70. In the simplest case, the energy storage mechanism 70 can be implemented as a spring that is directly coupled to the side slides 40, 50. The spring pulls the side slides 40, 50 closer together, in particular, pulling the side slides 40, 50 pushed to the sides toward the other fixed side slides 40, 50, at the sliding door When moving from one of the neutral positions toward one of the sides, the spring is tensioned or further tightened on the basis of the existing prestress. Due to the actuator 20, the middle slide 30 and one of the two side slides 40, 50, the side slides 40, 50 (depending on the direction of movement) are as described above. The spring is stopped, so that the spring stays in tension until the actuator 4 releases the stop during the return movement of the door. The door is then automatically retracted into the neutral position by the spring force.

In the present embodiment, the energy storage mechanism 70 is not implemented as a spring directly connected to the side slides 40, 50, but is implemented as a spring 71 disposed in a central region of the device 1, and the ends of the spring are provided with a meshing rope The springs cooperate with a winding device 72, 74 by the respective engagement cables. The winding devices 72, 74 each have a gear that meshes with a rack 44 or 54 of the left or right side slides 40, 50. Each of the winding devices 72, 74 has a substantially helical winding curve 73, 75. With this arrangement, the spring 71, which is embodied as an accumulator, can also be stretched when the side slides 40, 50 are subjected to a facing movement. At this time, the spring 71 applies a restoring force toward the middle position to the side slides 40, 50 that have been pushed to the side. Unlike the springs that directly connect the side members, the winding devices 72 and 74 transmit the winding curves 73 and 75 to the force between the side slides 40, 50 and the restoring force acting on the side slides. / Distance - the association exerts an influence.

6A to 6C are schematic views of another embodiment of the pull-in device 1 of the present invention. The component symbols of the same or identical components in the foregoing embodiments are used herein.

The pull-in device in the drawing is in a middle position (Fig. 6A), a right open position (Fig. 6B) and a left open position (Fig. 6C), respectively. The basic operation principle of the pull-in device 1 of the second embodiment is the same as that of the first embodiment shown in Figs. 1 to 5. The related description of the first embodiment can serve as a reference.

The difference from the first embodiment is that the actuator 20 is used here. The two-part structure consists of two jaws 22, 23. This embodiment does not provide the intermediate member 21 employed in the first embodiment. Another difference is that the control sliders 400, 500 that fix the left side slide 40 and the right side slide 50 to the respective open positions of the actuator 20 are implemented as rockers.

In the second embodiment, the movable furniture portion, in particular the sliding door, is automatically pulled into the neutral position by the pull-in device 1 of the present invention, wherein a separate energy storage mechanism 70 and a single damping unit 60 are employed. Both the energy storage mechanism 70 and the damping unit 60 are effective when the door moves in two directions or performs a return motion from both directions. Two cylinders 62 are employed in these embodiments to achieve the desired damping characteristics with the device 1 in a flat configuration. The two cylinders 62 operate in parallel so that they can be replaced by larger cylinders. If the damping unit is only effective for a direction of motion, then four cylinders shown or two larger cylinders are required to achieve the desired damping characteristics.

Another major advantage of the pull-in device 1 of the present invention is that it has the same pull-in effect and damping effect in both directions compared to the prior art, whereas the separate pull-in devices used to date have been subject to manufacturing tolerances, for example. Different pull-in and damping effects may be produced in different directions, and the degree of movement of the movable furniture portion may also be different.

1‧‧‧ Pull-in device/device

2‧‧‧ Door Accessories

3‧‧‧ fastening wedge

4‧‧‧Actuator

10‧‧‧shell

11‧‧‧Line guide track

12‧‧‧Bend guide track

13‧‧‧Slide guide track

14‧‧‧Shell dome

15, 16‧‧‧ Control track

17‧‧‧Connecting plate

20‧‧‧Activity

21‧‧‧Chinese parts

22, 23‧‧‧ jaws

30‧‧‧中滑座

31‧‧‧ guiding slot

32‧‧‧ contour

33, 34‧‧‧stop groove

35, 36‧‧‧ coupling groove / stop groove

37a, 38a‧‧‧ Lower section of the oblique distribution

37b, 38b‧‧‧ upper section of the oblique distribution

40‧‧‧Side slide on the left

41‧‧‧ contour

42‧‧‧Control slider guide slot

43‧‧‧ socket

44‧‧‧ rack

50‧‧‧Side slide on the right

51‧‧‧ contour

52‧‧‧Control slider guide slot

53‧‧‧ socket

54‧‧‧Rack

60‧‧‧damage element

61‧‧‧ piston rod

62‧‧‧ cylinder

70‧‧‧Energy storage agencies

71‧‧‧ Spring

72, 74‧‧‧ winding device

73, 75‧‧‧ winding curve

400‧‧‧Control slider

401‧‧‧Coupling pin

402‧‧‧Marketing

500‧‧‧Control slider

501‧‧‧Coupling pin

502‧‧ ‧ sales guide

X‧‧‧ moving direction

Y‧‧‧ direction

1A is a plan view of a pull-in device in a middle position, the housing is in an open state; FIG. 1B is a hidden device in FIG. 1A including a partially visible hidden line; FIG. 2A is a pull-in device shown in FIG. An open position; FIG. 2B is a hidden device of FIG. 1A including a partially visible hidden line; Figure 3A shows the pull-in device of Figure 1A in a second open position; Figure 3B shows the pull-in device of Figure 3A including a partially visible hidden line; Figure 4 is a middle portion of the pull-in device of Figure 1A during installation Figure 5 is another intermediate step of the pull-in device of Figure 1A during installation; and Figures 6A to 6C are top views of the pull-in device in another embodiment in different positions, the housing is open .

1‧‧‧ Pull-in device/device

2‧‧‧ Door Accessories

3‧‧‧ fastening wedge

4‧‧‧Actuator

10‧‧‧shell

11‧‧‧Line guide track

12‧‧‧Bend guide track

13‧‧‧Slide guide track

14‧‧‧Shell dome

20‧‧‧Activity

21‧‧‧Chinese parts

22, 23‧‧‧ jaws

30‧‧‧中滑座

31‧‧‧ guiding slot

32‧‧‧ contour

33, 34‧‧‧stop groove

35, 36‧‧‧ coupling groove / stop groove

37a, 38a‧‧‧ Lower section of the oblique distribution

37b, 38b‧‧‧ upper section of the oblique distribution

40‧‧‧Side slide on the left

41‧‧‧ contour

50‧‧‧Side slide on the right

51‧‧‧ contour

60‧‧‧damage element

70‧‧‧Energy storage agencies

71‧‧‧ Spring

X‧‧‧ moving direction

Y‧‧‧ direction

Claims (12)

A device (1) for pulling a movable furniture portion, in particular a sliding door, into a central position, having an actuator (20) movable in a housing (10) of the device (1), and a movable intermediate slide (30) coupled to the actuator, two movable side slides (40, 50), the side slides being spaced apart by a distance in the moving direction x, wherein the side slides (40) , 50) coupled to each other through an energy storage mechanism (70), the force of the energy storage mechanism from the one side slides (40, 50) of the side slides (40, 50) toward the side slides ( The other side slides (40, 50) of 40, 50), wherein a control slider (400, 500) is provided for each of the side slides (40, 50), wherein the middle slide (30) When moving from the middle position, the side slides (40, 50) of the side slides (40, 50) in the direction of movement of the middle slide (30) are in the control slide The block is temporarily coupled to the middle slide (30), and the other side slides (40, 50) of the side slides (40, 50) are temporarily fixed to the housing (10). The device (1) of claim 1, wherein the side slides (40, 50) are coupled by a damping unit (60), the damping unit is opposite to the side slides (40, 50) The relative movement is suppressed. The device (1) of any one of claims 1 or 2, wherein the control sliders (400, 500) are respectively guided by a control slider of the side slides (40, 50) The slots (42, 52) are guided in a direction transverse to the moving direction x, and the control sliders respectively have a coupling pin (401, 501) and a guide pin (402, 502), and the control sliders Use this The coupling pin snaps into the coupling groove (35, 36) of the middle slide (30) such that the middle slide (30) is coupled with the corresponding side slide (40, 50), and the control slider utilizes the guide The pin snaps into the control track (15, 16) of the housing (10). The device (1) of claim 3, wherein the control track (15, 16) has at least one section distributed transversely to the direction of movement x. The device (1) of any one of claims 2 to 4, wherein the coupling groove (35, 36) has at least one section (37a, 38a, 37b, 38b) inclined toward the moving direction x. . The device (1) of any one of claims 1 to 5, wherein the actuator (20) is fixable in an outer open position in an open position at a distance from the middle position On the outer casing (10). The device (1) of any one of claims 1 to 6, wherein the actuator (20) has two side jaws (22, 23) designed to surround the door fitting (2) Actuator (4). The device (1) of claim 7, wherein the actuator (20) is guided in a guiding track (11, 12) of the casing (10), wherein at least one guiding track ( 12) the outer zone is curved such that when the actuator (20) in one of the open positions is located in the outer zone of the guide track (12), the actuator (20) in the neutral position The enclosed actuator (4) is unlocked. The device (1) of claim 8 wherein the jaws (22, 23) are reversibly hinged to the member (21) of the actuator (20) and together with the guide pin at the bend Guided in the lead rail (12), so that One of the jaws (22, 23) of each of the jaws (22, 23) in each open position is inverted relative to the component (21) of the actuator (20). The device (1) of any one of claims 1 to 9, wherein the side slides (40, 50) have sockets (43, 53) for connecting the damping element (60). The device (1) of any one of claims 1 to 10, wherein the side slides (40, 50) each have a rack (44, 54), the racks and the energy storage The agency (70) works together. The device (1) of claim 11, wherein the energy storage mechanism (70) has two winding devices (72, 74) and a spring (71) disposed between the winding devices.