KR20140064875A - An apparatus for retracting a movable furniture part to a central position - Google Patents

Abstract

The present invention relates to a mobile furniture component, in particular a device for retracting a sliding door to a central position, comprising a carrier guided in a lateral direction within a housing of the device; And a conveying portion, guided in a transversely moving manner, and including a central slide. The device also includes two side slides. The two side slides are guided in a movable manner in an axial direction and are arranged at a certain distance from each other in the direction of movement and the side slides are connected to each other by means of an energy storage assembly, do. A control slider is provided on the side slides while the central slide is moving from the central position and the side slides engage the central slide on the direction of movement of the central slide while the other side slides are fixed to the housing do.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for retracting parts of a movable furniture to a central position,

The present invention relates to a mobile furniture component, and in particular to an apparatus for retracting a sliding door to a central position.

The retraction device is used in the furniture sector in a number of variants, for example by automatically retracting the door of a drawer or furniture from a predetermined position to a closed position.

A bidirectional retraction device is known from the specification of DE 20 2010 007 230 U1 for enabling automatic retraction to a central position in a dampened fashion from two directions. This bi-directional retraction device operating in this opposite direction works with coupling slides which are guided longitudinally and obliquely.

While the sliding door is moving from the central position, the coupling slide is moved in each inlet direction through respective carrier projections on the sliding door, and moves along with either one of the two unidirectional retraction devices do.

As a result of the movement in the inlet direction, the retraction spring of each retraction device increases in tension at the point where the delivery portion of the retraction device tilts to the closed position when the coupling slide is actuated.

In this process, the coupling of the coupling slide is released to the retraction device. The coupling elements are further spaced from the sliding protrusion of the sliding door as a result of the inclined guidance in the retraction device and thus separated from the sliding door, while the door further moves in the respective inlet direction.

This allows the door to move more freely. During a re-movement for closing the door in the direction of the center position, the sliding door with the second transfer projection is brought into engagement with the coupling portion of each of the coupling slides, thus dragging the coupling elements together in the closing direction.

The coupling slide engages a closed transfer part of the toothed device of increased tension. As a result, the retraction device is braked and the coupling slide is pulled in a manner that it is braked to a central position via the retraction spring using a damping element. While the sliding door moves from the center position in the opposite direction, the same process occurs in a symmetrical manner by using each other unidirectional retraction device.

The use of two separate toothed devices operating in a unidirectional manner is disadvantageous compared to the bidirectional retracted devices mentioned. The use of two separate retraction devices is more costly among others due to the mechanically complex discrete closure mechanism and optional damping elements.

It is therefore an object of the present invention to provide an apparatus for retracting in both directions of a movable furniture part to a central position so as to avoid the use of a separate retracting device operating in a unidirectional manner.

This problem is solved by a retracting device having the features of claim 1.

The apparatus according to the above-mentioned invention comprises a carrier which is guided to be transversely movable in the housing of the apparatus; And a conveying portion, guided in a transversely moving manner, and including a central slide. The device also includes two side slides. The two side slides are guided in a movable manner in an axial direction and are arranged at a certain distance from each other in the direction of movement and the side slides are connected to each other by means of an energy storage assembly, do. A control slider is provided on the side slides while the central slide is moving from the central position and the side slides engage the central slide on the direction of movement of the central slide while the other side slides are fixed to the housing do.

The coupling to either one of the two side slides of the central slide is performed by the control slider according to the direction of movement of the central slide, and thus of the transfer part and finally of the movable furniture part. On the other hand, the other side slide is fixed to the housing. This increases the distance from each of the two side slides while the furniture part is moving from the center position. This ensures that the direction of movement is independent. The energy storage assembly positioned between the side slides is thus active in each of the movement directions. As a result, the retraction device according to the invention can be arranged as one energy storage assembly.

According to a preferred embodiment of the device, the side slides can also be coupled together by a braking device. At this time, the movement of the side slides toward each other is braked. This additionally provides a braking function during automatic retraction, which can also be performed by one braking device.

According to a further preferred embodiment of the device, the control sliders are guided in the lateral direction in the direction of movement X in the control slider guide slot of the side slides, respectively, and in the center Each of which includes a coupling pin for coupling to a coupling slot of the slide, and each having a guide pin for connecting to a control path of the housing. As a result, the movement of the control slider can be combined with the position of the side slides in a simple and reliable manner, thus enabling stable engagement between the center slide and the side slides.

In a particularly preferred manner, the coupling slot includes at least one portion that extends to be inclined with respect to the movement direction X. This contributes to the soft and faulty operation of the control slider.

According to a further preferred embodiment of the device, the transfer part is fixed to the housing in either of two outward opening positions spaced from the central position. Fixation of the central slide and the side slides moving together with each other can be performed by fixing the transfer part to the housing and can remain in the open position until the retreat process to the center position is braked.

According to a further preferred embodiment of the device, the transfer section comprises two lateral grip portions arranged to engage an activator of the door component. The conveying portion is guided in a particularly preferable manner at the guide portion. At least one guide part 12 is formed in a curved shape in such a manner that the activator 4 surrounds the conveying part 20 at the central position in an outer area, The activator being released at the central point is released by the conveying portion when it is placed in any one of the open positions. The simple connection of the device to the movable furniture part, i.e. the sliding door, is carried out in this way. Only one activator is required to be fixed to the furniture part through which the furniture part is coupled to the retracting device between the central position and the open position.

The grippers 22 and 23 are pivotably connected to the central part 21 of the conveying unit 20 and are guided by the guide pins 12 in the curved guide unit 12, Each of the clamps 22, 23 pivots in relation to the central part 21 of the transfer part 20. This arrangement provides for coupling of the limited activator to the transfer part and separation from the transfer part.

Additional advantageous embodiments and further inventions are the subject of the dependent claims.

The retraction device according to the present invention may be arranged as one energy storage assembly.

The present invention also provides a braking function during automatic retraction, which can also be performed by one braking device.

Also according to the invention, the movement of the control slider can be combined with the position of the side slides in a simple and reliable way, thus enabling a stable engagement between the center slide and the side slides.

The present invention is described below with reference to the detailed portions of the drawings.
1A is a schematic plan view showing a retractor having an open housing in a central position;
1B shows a retraction device according to FIG. 1 with a partial line of sight.
Figure 2A shows the retraction device of Figure 1 in a first open position.
Figure 2B shows the retraction device of Figure 2A with a partial line of sight.
Figure 3A shows the retraction device of Figure 1A in a second open position.
Figure 3B shows a retractor according to Figure 3, with a partial line of sight.
Figure 4 shows the retraction device of Figure 1A at an intermediate stage of mounting.
Figure 5 shows the retraction device of Figure 1A at a further intermediate stage of mounting.
Figures 6A-6C show a schematic top view of a retraction device with an open housing according to a further embodiment at different positions.

Embodiments of a retractor device according to the present invention are shown in different positions and views in the following drawings, which are shown in detail below. Brief Description of the Drawings Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. For reasons of clarity, some components are not provided with reference numerals on the drawings.

Figures 1 to 3 show a retractor in another position. At this time, the line of sight is not seen in A of each drawing, and the line of sight is partially shown by dotted line in B of each drawing. Figs. 4 and 5 correspond to the view at the position of Fig. 1A, in which the various components of the retractor are not included in Figs. 4 and 5 so as to be able to recognize the components located at the rear. In this regard, Figures 4 and 5 show the retraction device in the intermediate stages of mounting. The upper housing cover of the retraction device is omitted in all figures to provide the interior of the configuration.

In the following description of the drawings, terms such as up and down, left, right, front and rear are only relevant to the exemplary cities selected on the drawings. These terms should not be construed as limiting, but should be understood in relation to the respective figures.

The figures show a retraction device 1 in association with a door part 2 (see Fig. 1). Also hereinafter, the retractor 1 is referred to as the device 1 in an abbreviated manner. The door part 2 is for example a door part 2 which is directly or indirectly connected to a sliding sliding door (not shown) in which the throttle plug 3 is received in each bore hole of the sliding door or the moving part of the sliding door . The door part 2 includes a pin-shaped activator 4 at the lower end thereof, and the activator 4 interacts with the retraction device 1. The sliding doors are mounted movably on the left and right sides with respect to the plane on which the drawings are drawn on the drawing. The respective guide rails for the sliding doors are also not shown. The direction of movement of the sliding door is also referred to hereinbelow as the x-axis direction, which means movement having a positive x value of movement to the right and movement to the left means movement having a negative x value. In the case of the door part 2 moving together, the device 1 is fixedly mounted directly or indirectly to a furniture body, a guide rail arranged in the furniture body or an end stopper arranged in the furniture body. Conversely, the activator can also be fixedly arranged on the furniture body, and the device 1 can be fixed to the sliding door. Therefore, they literally move together in the same way. The same functionality can be obtained in this way as in the device 1 assuming that it is fixed here.

The device (1) comprises a housing (10). The housing 10 is shown in this case only a shell at the bottom of the housing. (Not shown) of the housing, produced for example by injection molding using plastic. The web 17 (see FIG. 4) can be arranged in the housing 10 for reinforcement, and the webs 17 can be used for dust prevention and visibility. The apparatus (1) includes a transfer unit (20). The transfer part 20 partially protrudes from the housing 10 and is associated with the activator 4 of the door part 2. The transfer portion includes a central portion 21 and lateral grip portions 22, 23 connected to the central portion 21 described above. The linear guide portion 11 is arranged in the housing 10 so that the central portion 21 and the conveying portion 29 can move in the lateral direction. In the illustrated case, the central portion 21 engages the two guide pins on the straight guide portion. The guide pins simultaneously form a rotation axis for the associated clamping parts 22, Additional guide pins are inserted into the respective clamping portions 22, 23 spaced apart from the combined point. At this time, the additional guide pin is connected to the guide part 12 of the housing 1, and the guide part 12 is formed in a curved shape at the end side and arranged linearly in the central area. It is noted that the transfer section 20 can also be arranged in a different manner than that shown in the figures. For example, the guide pins can be arranged in different shapes, numbers and / or positions on the transfer part 20. [ The clamps 22, 23 enclose the activator 4 of the door component in a central portion as shown in Fig. The shape of the inlet formed in this way in the lateral movement of the drive 20 and surrounding the activator 4 does not change at first. Each of the gripping portions 22 and 23 will be tilted only on the side when the guide pins of the gripping portions 22 and 23 are slid into the curved region of the guide portion 12 and the actuators 4 are released in the respective directions The entrance will be open to the size that it is. This is shown in Figures 2A and 2B for rightward movement and in Figures 3A and 3B for leftward movement.

The device 1 also comprises three slides. The slides, e.g. the center slide 930), the left slide 40 and the right slide 50 are also guided in a transversely movable manner. The linear slide eaves 13 are arranged in the housing 10 for the lateral guides of the slides 30, 40, 50 described above. The central housing dome 14 is also used for guiding purposes and is additionally used to receive a screw for connecting the halves of the housing 10).

The slides 30, 40, 50 are arranged on different parallel planes relative to each other. The side slides 40, 50 are supported on the housing shell of the bottom surface and are guided by the slide guide portion 13 thereof. This is shown in detail in FIG. 4, which shows the appearance of the device 1 with the central slide 30 removed. The central slide 30 is arranged in such a way that it partially overlaps the side slides 40, 50 in the second plane. The center slide 30 is guided using a contour 32 on the contours 41 and 51 arranged in the guide slot 31 and the side slides 40 and 50 respectively by the housing dome 14. [ Additional guides of the slides 30, 40, 50 in the transverse direction can be performed by the respective guide portions of the upper housing shell.

The lateral movement of the central slide 30 is combined with the lateral movement of the transfer section 20 by the left and right closed slots 33, 34. The closed slots 33 and 34 are then arranged in the part of the central slide 30 and the central slide 30 is located on the outer sidewalls supporting the guide pins of the transfer part 20 and in the upper part of the drawing.

The guide pins are fixed to the housing 10 in such a manner that when the conveying portion 20 and the center slide 30 are moved in the lateral direction as shown in Figs. 2A and 2B and Figs. 3A and 3B, And falls to the bottom side of the closed slots (33, 34) at the end of the lateral movement of the transfer part during the movement in the bent part. After the release of the activator 4, the transfer part 20 and the central slide 30 are left in the left or right open position as shown in Figures 2A, 2B and 3A, 3B. The transfer unit 20 and the central slide 32 of the housing 10 are fixed by lifting the clamp unit 22 or 23 opened during the return movement of the activator 4 along the curved guide unit 12, Lt; RTI ID = 0.0 > closes < / RTI >

The side slides 40 and 50 include control slider guide slots 42 and 52 extending perpendicularly to the x-axis direction. In the guide slots 42 and 52, the control slider 400 or 500 includes Y It can move back and forth along the axial direction (see FIG. 4 in particular). The control sliders 400 and 500 are used to connect the center slide 30 with the left slide 40 or the right slide 50. For this purpose, the control sliders 400, 500 include coupling pins 401, 501, respectively. The coupling pins 401 and 501 protrude in the direction toward the center slide 30 from the urban plane. These coupling pins 401 and 501 are connected to respective coupling slots 35 and 36 arranged in the left or right region of the center slide 30 according to the position of each control slider 400 and 500 on the Y- . The control sliders 400 and 500 include guide pins 402 and 502 facing the bottom housing shell of the housing 10 for movement of the control sliders 400 and 500. Which are respectively guided to the left or right control tracks 15, 16 respectively arranged in the housing 10. The control tracks 15 and 16 are each curved at a portion facing the center of the device 1, respectively. As a result, lateral movement of the side slides 40, 50 is limited to the central side on the one hand. On the other hand, when each side slide 40, 50 is positioned at the inner stop position, i.e., the left stop position in the right slide 50 or the right stop position in the left slide 40, (400, 500) slide downward, that is, in the direction away from the conveying portion in the negative Y-axis direction.

The control slider 400 or 500 which is pushed toward the conveying unit 20 side because the coupling slots 35 and 36 of the central slide 30 are opened downward and thus in a direction away from the conveying unit 20 The center slide 30 is coupled with the left slide 30 or the right slide 40 and the transfer part 20 pushed out of the control sliders 400 and 500 is moved to the center slide (30) is released.

During the movement of the sliding door from the center position to the right as shown in Fig. 1, the left slide 40 is moved by its control stopper 400 pushed in the negative Y-axis direction to its inner stop position on the housing 10 And the connection from the center slide 30 is released. Movement of the control slider 400 into the curved region of the control track 15 can be assisted by diagonally extending the upper portion of the closed slot 35. [ On the other hand, the right slide 50 is engaged with the center slide 30 by the right control slider 500. At this time, the right control slider 500 is pushed upward toward the coupling slot 36 in the positive Y-axis direction and moves to the right together with the coupling slot 36 as shown in Fig. The insertion of the control slider 500 into the closed slot 36 is assisted by diagonally extending the lower portion 38a of the closed slot 36. [ At the right stop position, which is also known as the open position, the entrance of the transfer part 20 is opened by the movement of the right clamping part 23 by inserting each guide pin into the curved area of the guide part 12.

3A and 3B, the right slide 50 is moved in a symmetrical manner to the left of the right slide 50 while the activator 4 is moved from the center position to the left as shown in FIGS. 1A and 1B. And the engagement with the center slide 30 is released. On the other hand, the left slide 40 engaged with the center slide 30 pushes up the control slider 400 until the left gripper 22 guided by the curved guide portion 12 opens the mouth of the feeder 20 And at the same time fixes the transfer part 20 and thereby fixes the left slide 40 of the left end position shown with the center slide 30. Movement of the control slider 500 into the curved region of the control track 16 is assisted by diverging the upper portion 38b of the closed slot 36 at an angle. The insertion of the control slider 400 into the closed slot 35 is assisted by diagonally extending the lower portion 37a of the closed slot 35. [

The side slides 40, 50 thus have a minimum distance therebetween when the transporting portion 20 and therefore the sliding doors are located at the central position (see Figs. 1a, 1b, 4). The distance of the two side slides 40, 50 increases, respectively, irrespective of the opening direction in which this movement occurs while the sliding door or the transfer part 20 moves from the central position.

The side slides 40, 50 are connected to one another via a braking device 60, on the other hand via a mechanical energy storage assembly 70. For this purpose, the side slides 40, 50 include receivers 43, 53 for receiving the ends of the braking device 60, respectively, inside thereof. The braking device 60 includes at least one cylinder 62 and a piston rod 61 (see Fig. 5). At this time, any one of the receivers (for example, the receiver 43 of the left slide 40 in this case) is formed to be caught by the head of the piston rod 61, and another receiver Are arranged to connect the cylinders 62 of the braking device 60 to the respective side slides 50. The braking device 60 is arranged in a known manner. That is, the extension of the piston rod 61 from the cylinder 62 is possible with as little force as possible, while the compression of the piston rod 61 into the cylinder 62 occurs in a braking manner. This means that, with respect to the movement of the sliding door, the movement of the door from the center position occurs in a non-braking manner regardless of the direction of movement, while the movement to the center position occurs in a braking manner. It is believed that it is possible to carry out two movements in a braking manner and optionally to a different degree.

In addition, the side slides 40, 50 are each connected through an energy storage assembly 70. In the simplest case, a spring that is directly connected to the side slides 40, 50 may be used as the energy storage assembly 70. The spring pulls the two side slides 40 toward each other, particularly the laterally spaced side slides 40, 50 towards the respective fixed side slides 50, 40, When the door moves from one side to the other in either direction, more tension will be applied in relation to the initial pretensioning provided. The spring is moved by the closing of one of each of the conveying section 20, the central slide 30 and the two side slides 40, 50 described above until the activator 4 releases this closing during the return movement of the door The tension is maintained in the applied state. As a result, the door will automatically be moved by elastic force to the center position.

In the illustrated embodiment it is not a spring that is directly connected to the side parts 40 and 50 as an energy storage assembly 70 but rather a spring arranged in the central region of the device 1 and each winding device 72, Which are connected to each other through cables which act on the ends. The winding devices 72 and 72 each comprise a gear wheel which engages the gear racks 44 and 45 of the left and right slides 40 and 50, respectively. Each winding device 72, 74 also includes winding curves 73, 75, which are provided in a generally spiral manner. In this arrangement, the spring 71 is also pulled apart as an energy storage unit when the side slides 40, 50 move away from one another. Thus, the spring 71 gives a restoring force to each previously spaced side slide 40, 50 in a central direction. Unlike splicing, which is directly connected to the side components, the winding devices 72 and 74

By providing a respective configuration of the winding curves 73 and 75 and influencing the load diaplacement connection between the distances of the side slides 40 and 50 to each other, 40, and 50, respectively.

6A to 6C show further embodiments of the retractor 1 according to the invention. The same reference numerals designate the same elements or elements that operate in a manner similar to the above embodiment.

The figures show retractor devices in the central position (Figure 6A), the right open position (Figure 6B), and the left open position (Figure 6C). The retracting device 1 in the second embodiment is not different from the retracting device in the first embodiment shown in Figs. 1 to 5 in terms of the functionality of the principle. Each description of the first embodiment is referred to below.

Unlike the first embodiment, the transfer part 20 is formed in two parts by the two clamps 22 and 23 in this case. The central part 21 used in the first embodiment is not used in this embodiment. It is also different that the control sliders 400 and 500 are provided with swivel levers which fix the left slide 40 or fix the right slide 50 to the open position of each of the transfer parts 20. [

Automatic retraction of movable furniture parts, in particular to the central position of the sliding door, is achieved in the two embodiments disclosed by the retraction device 1 according to the invention. At this time, a single energy storage assembly 70 and a single braking device 60 are used. The energy storage assembly 70 and the braking device 60 become active during the movement of the door in both directions or during the return movement from both directions. It is provided that a desired damping behavior is associated with the flat configuration of the device 1 that both cylinders 62 are utilized in the described embodiments. Both cylinders 62 operate in parallel, which in theory can be replaced by a larger one. If the braking system is only active in one direction, the disclosed cylinders may be used to achieve the desired braking characteristics, with two cylinders of four or larger sizes.

The retraction device 1 according to the invention provides an additional significant advantage to the state of the art that the retraction effect and the selective braking effect are the same in both directions. At this time, the retracting and braking effects and thus the movement of the movable furniture parts, when using a known separate retracting device, can occur at different strengths depending on the direction, for example as a result of product resistance.

1: Retraction apparatus
2: Door fitting (Door fitting)
3: Fastening plug
4: Activator
10: Housing
11: Straight guideway
12: Bent-off guideway
13: Slide guideway
14: Housing dome
15, 16: Control track
17: Web (Web)
20: Carrier
21: Middle part
22, 23: Claw
30: Middle slide
31: Guide slot
32: Contour
33, 34: Locking slot
35, 36: Coupling slot
37a, 38a: Bottom oblique section
37b, 38b: Upper oblique section
40: Left side slide
41: Contour
42: Control Slider Guide Slot
43: Receiver
44: Toothed rack
50: Right side slide
51: Contour
52: Control Slider Guide Slot
53: Receiver
54: Toothed rack
60: Damping device
61: Piston rod
62: Cylinder
70: Energy storage assembly
71: Spring
72, 74: Winding apparatus
73, 75: Winding curve
400: Control slider
401: Coupling pin
402: Guide pin
500: Control slider
501: Coupling pin
502: Guide pin

Claims (12)

A retractor (1) for retracting a movable furniture part, in particular a sliding door, to a central position,
A carrier (20) guided movably in the housing (10) of the retraction device (1) and to which a central slide (30) guided for movement is connected;
Two side spaced apart from one another in the X-axis direction, displaceably guided, connected to each other through the energy storage assembly 70, and having side slides 40, 50); And
One of the side slides 40 and 50 is temporarily connected to the central slide 30 moving in the direction of the side slides 40 and 50 when the center slide 30 is moved from the center position And one control slider (400, 500) provided on each of the side slides (40, 50) in such a manner that the other one of the side slides (40, 50) is temporarily fixed to the housing Retracting device of mobile furniture parts. The method according to claim 1,
Wherein the side slides (40, 50) are connected to each other in such a way that movement of the side slides (40, 50) by the braking device (60) towards each other is braked. 3. The method according to claim 1 or 2,
The control sliders 400 and 500 are guided transversely in the direction of movement X in the control slider guide slots 42 and 52 of the side slides 40 and 50 respectively and the center slides 30 And coupling pins 401 and 501 which engage coupling slots 35 and 36 of the central slide 30 to connect the side slides 40 and 50 of the housing 10, Each having guide pins (402, 502) connecting to the tracks (15, 16). The method of claim 3,
Wherein the control track (15, 16) comprises at least one portion extending transversely in the direction of movement X. 5. The method according to any one of claims 2 to 4,
Wherein the coupling slot (35, 36) comprises at least one portion (37a, 38a, 37b, 38b) extending to be inclined with respect to the movement direction (X). 6. The method according to any one of claims 1 to 5,
Wherein the transfer part (20) is capable of being fixed to the housing (10) at any of two outward opening positions spaced from the central position. 7. The method according to any one of claims 1 to 6,
Wherein the conveying part (20) comprises two lateral clamping parts (22, 23) arranged to engage the activator (4) of the door part (2). 8. The method of claim 7,
The conveying unit 20 is guided by the guide units 11 and 12 of the housing 10 and at least one guide unit 12 is located at the outer area of the conveying unit 20, And is released when the transfer part (20) is placed in one of two open positions in an outer area of the guide part (12). 9. The method of claim 8,
The grippers 22 and 23 are pivotably connected to the central part 21 of the conveying unit 20 and are guided by the guide pins 12 in the curved guide unit 12, Wherein each of the gripping parts (22, 23) pivots in relation to the central part (21) of the transfer part (20). 10. The method according to any one of claims 1 to 9,
Wherein said side slides (40, 50) comprise receivers (43, 53) for connecting to said braking device (60). 11. The method according to any one of claims 1 to 10,
Wherein the side slides (40, 50) each comprise a gear rack (44, 54), respectively, associated with the energy storage assembly (70). 12. The method of claim 11,
The energy storage assembly (70) includes two winding devices (72, 74) and a spring (71) provided on the two winding devices (72, 74).

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