ES2741588T3 - Retraction device for sliding doors - Google Patents

Abstract

Retraction device (10), especially for sliding doors, with an unlocking piece (50), which can be coupled, indirectly or directly, to a damper (20) of the retraction device (10) and a spring (30) of the retraction device (10), wherein the unlocking piece (50) is movable from a first stop section (13.2) of a guide (13) of the retraction device (10) towards a guide section (13.1), and where the unlocking piece (50) in the guide section (13.1) is adjustable against the damping force of the shock absorber (20) in the damping direction, where the unlocking piece (50) has a housing of the drive member (56), characterized in that the guide (13) has a second stop section (13.3), in which the unlocking piece (50) is adjustable inward from a second stop position, because the second stop section (13.3) in front of the first stop section (13.2) is arranged displaced in the direction of the damping, because the housing of the drive member (56) is released in the first stop position associated with the first stop section (13.2) and in the second stop position for the accommodation of a member drive (61), because the unlocking piece (50) is coupled to or has a carriage (40), because the carriage (40) adjustably houses the unlocking piece (50), and because the The unlocking piece (50) is supported on the carriage (40) so that a linear tilting movement is carried out with respect to the carriage (40) at the transition of the guide section (13.1) in the first and / or second section of stop (13.2, 13.3).

Description

DESCRIPTION

Retraction device for sliding doors

The invention relates to a retraction device, in particular for sliding doors with an unlocking part, which is indirectly or directly coupled to a damper and a spring, in which the unlocking part is movable from a first stop position of a guide towards a section of the guide, and in which the unlocking part is adjustable in the section of the guide against the damping force of the shock absorber in the direction of damping.

These types of retraction devices are known from DE 10 2007 008 363 B3. In this case, an activator with a drive element is installed in the sliding door. By sliding the sliding door, the drive organ reaches the area of the unlocking part and removes it from its stop position, whereby the unlocking part is released. A retraction spring is then activated, which pulls the release piece from the stop position to the retraction position. At the same time a shock absorber acts on the unlocking part, which slows down the retraction force of the retraction spring.

In modern furniture, sliding doors are often used for the optional covering of three shelves arranged side by side. Accordingly, the sliding door can be positioned to cover either the left, the right or the middle shelf. The sliding door can be extended with the retraction device shown in DE 102007008363 B3 respectively to the associated end position of the left or right shelf. In the central position it is not possible to align the sliding door with the known retraction device.

A similar device is also disclosed in DE 202004006412 or EP 1658785 B1.

Other retraction devices for sliding doors are described in DE 202009 016834 U1.

The task of the invention is to create a retraction device of the type mentioned at the beginning, with which a sliding door can also be aligned in a simple central position. Furthermore, it is the task of the invention to develop a retraction arrangement or a method for fixing a sliding door for this purpose.

The task of the invention that affects the retraction device will be solved with the characteristics of claim 1. Correspondingly it is provided that the guide has a second stop section, in which the unlocking part is adjustable in a second position of unemployment, and that the second unemployment section is arranged facing the first unemployment section in the direction of damping. With this retraction device, the sliding door can be moved by moving from the first final position towards the unlocking piece and removing it from the stop position. Then, the spring and shock absorber will be activated and the sliding door will be pulled towards the central position. Now the sliding door can still be moved to the second final position, since the unlocking piece can also be adjusted in a second stop position. In this second stop position, the drive element will then be released again and the sliding door can move to the second final position.

According to the invention, it is further provided that the unlocking part has a housing of the drag member, that the housing of the drag member is released in the first stop position associated with the first stop section and in the second stop position for accommodation of the drag organ. In this way, the sliding door can be adjusted from both end positions towards the housing of the drag member and thereby be captured by the unlocking piece.

In this regard it is particularly advantageous that it is provided that the housing of the drive body is released in the first stop position against the direction of damping and that the housing of the drive body is released in the second stop position in the direction of damping. In this way, an easy introduction of the drive member into the housing of the drive member is made possible.

A particularly simple constructive configuration is obtained for the retraction device according to the invention; due to the fact that the unlocking part is coupled to a carriage or has a carriage, and that the carriage houses the unlocking part in an adjustable way.

A fixing of the drag member in the housing of the drag member is particularly reliable, if provided, that two stops are attached to the housing of the drag member to fix the drag member in the housing of the drag member. Then it will be avoided that, by a strong collision of the drag member against the corresponding stop, the drag member recoils back from the housing of the drag member.

In order to ensure efficient use of the retraction device, in particular in the first assembly or in an erroneous operation, it is envisaged that, according to another variant of the invention, one or both stops can be adjusted transversely towards the adjustment movement of the unlocking against the prestressing of a spring element. In this way, the stops have the form to be able to go back when the dragging element is not in its operating position according to the norm. The drive member will then be able to be pushed into the retracted stop in the drive body housing.

For the purposes of a stable guide of the unlocking part, it can be provided that the carriage can be moved with an added guide piece in a carriage guide between the positions associated with both stop positions.

Another preferred variant of the invention is characterized in that the unlocking part has two guide pieces, which are guided in an adjustable way in the guide, and that in each case a guide piece can be introduced into the associated stop position in a section of unemployment. With the guide pieces, a defined association of the unlocking part in the stop position will be guaranteed and, thereby, an effective immobilization of the unlocking part.

According to the invention, it is further provided that the unlocking part is supported on the carriage so that a combined linear tilting movement is implemented during the transition of the guide section in the first and / or second stop section. By means of this configuration, for the purpose of a small constructive height, the unlocking part can be tilted when moved to the stop position and, in addition, introduced into the retraction device housing.

According to another variant of the invention, a retraction arrangement with two unlocking parts is proposed, each of which is connected to a shock absorber and a spring, where the direction of operation of the shock absorber and the spring are in the opposite direction. With this, each unlocking piece is provided to guide the sliding door from an end position to the central position. In this way, a cushioned drag of the sliding door is achieved by moving from the first final position to the central position. By moving from the second final position a dampened drag movement of the sliding door to the central position will also be facilitated with the second unlocking piece.

The task of the invention related to the method of fixing a sliding door will be solved with the features of claim 9. According to this it is envisioned that the sliding door is movable on both sides from a central position to an end position, wherein the Sliding door is moved from the first end position, by means of a drag member, against a first unlocking piece of a retraction device, that the first unlocking piece is regulated outside the first stop position, that the first piece of unlocking is dragged by means of a spring and against the action of the damping of a shock absorber towards the central position, and that the unlocking part by moving the sliding door is moved from the central position to the second final position inwards from a second stop position and the drag organ is released.

This again allows a guided movement of the sliding door towards the central position from both end positions.

In this regard, it can be provided, in particular, that the drive member is housed in the central position of the sliding door in a second unlocking part of a second retraction device, and that by moving the sliding door from the position A spring connected to the second release piece is tensioned towards the second end position. This spring can be used later during the movement from the second final position to the central position, in order to facilitate the retraction of the sliding door.

A preferred variant of the invention may in this case be of a configuration such that during the movement of the sliding door from the second final position to the central position the spring of the second unlocking part is tensioned and the second unlocking part is damped against the damping effect of a shock absorber. In this way the spring retraction power is reduced continuously and dampened.

The invention will be explained in greater detail in the following by means of the embodiments shown in the drawings. They show:

Figure 1, a retraction device in side view and partially in section in a first operative position;

Figure 2, the retraction device according to Figure 1 in a changed operating position;

Figure 3, the retraction device according to Figures 1 and 2 in another changed operating position;

Figure 4, the retraction device according to Figures 1 to 3 in another changed operating position;

Figure 5, in front perspective view the representation according to Figure 4;

Figure 6, the representation according to Figure 5, but with the changed operating position of a drag organ;

Figure 7, another embodiment of a retraction device, in which two retraction devices according to Figures 1 to 6 are used, in front perspective view and in a first operational position;

Figure 8, the representation according to Figure 7 in a changed operating position;

Figure 9, the representation according to Figures 7 and 8 in another changed operating position;

Figure 10, the representation according to Figures 7 to 9 in another changed operating position;

Figure 11, a carriage and an unlocking part in front perspective view for use in one of the retraction devices according to Figures 1 to 10; Y

Figure 12, the representation according to Figure 11 in rear perspective view.

Figure 1 shows a retraction device 10 with a housing 11, which has a housing 12. In the housing 12 a shock absorber 20 has been placed. The shock absorber 20 is designed as a pneumatic shock absorber and has a cylinder 21, in which a Piston is linearly adjustable. In the piston there is a rod 22 connected, which closes with a terminal piece 23. The shock absorber 20 can be fixed in the housing 12. So that the shock absorber 20 remains non-movable in the direction of the longitudinal axis of the piston rod 22, supports 15 are provided in the housing 11, which are applied in a groove of the cylinder 21. Furthermore, a spring 30 has been incorporated in the housing 12 of the housing 11. The spring 30 is fixed at its left end 31 to a support, which not shown in Figure 1. The second end 31 of the spring 30 is attached to a carriage 40, which is linearly adjustable in the housing 11. The piston rod 22 is applied to with its end piece 23 also in the carriage 40 and It is linked to it, as explained in greater detail with reference to Figures 11 and 12 below.

As these drawings show, carriage 40 is constructed as a piece of plastic cast by injection. It has a base part 41, which has a fixing housing 42 with a bolt. The piston rod 22 is fixed with its end piece 23 in this housing, where the end piece 23 is slid with a hole over the bolt of the fixing housing 42. Thus, the piston rod 22 is immobilely connected with the carriage 40 in the direction of its longitudinal extension.

In addition, a spring holder 46 is provided in the base part 41. In this spring holder 46 the end 31 of the spring 30 can be fixed. The carriage 40 also has a support section 43, which is connected to the base part 41. The support section 43 forms a housing 44 for an unlocking part 50. The unlocking part 50 is constructed in the form of a housing and has two stops 53 and 54. These stops 53 and 54 are kept movable in the release piece 50 in the vertical direction shown in Figures 11 and 12. With this, the stops 53, 54 can be inserted in the downward vertical direction (according to Figures 11 and 12) against the initial tension of an element spring in the unlocking part 50. The unlocking part 50 also has two guide pieces 51,52, constructed in one piece as bolt-added parts to the unlocking part 50. On the side facing away from the feet Guide Zones 51, 52 is formed, in the unlocking piece 50, a support piece 55. This support piece 55 protrudes above a flat surface of the unlocking piece 50, where the flat surface rests on the oriented flat surface of the storage section 43 to form a sliding surface. The support piece 55 is applied in a support housing 45 of the carriage 40. With this, the support housing 45 is configured as an elongated hole. The unlocking part 50 can therefore be tilted against the carriage 40, in which the longitudinal central axis of the pin-shaped support piece 55 forms the tilting axis. In addition, the unlocking part 50 can be adjusted vertically limited in the support housing as an elongated hole 45. The tilt and the adjustment position of the unlocking part 50 is guided above the flat support between the support section 43 and the oriented surface of the unlocking piece 50.

As Figure 1 shows, the unit formed by the carriage 40 and the release part 50 is installed in the housing 11 of the retraction device 10. With this, the guide pieces 51 and 52 are applied in a guide 13, which is introduced as a perforation in the housing 11. The added guide piece 47 of the carriage 40 is applied to a guide 16 of the carriage, which faces the guide 13 and which is also introduced as a perforation or groove in the housing 11. In this way the carriage unit 40 / unlocking piece 50 will be guided in the guide 13 and the carriage guide 16. The walls of the housing 11, in which the guide 13 and the guide 16 of the carriage are formed prevent the release of the unlocking part 50 and the carriage 40, so that separate fasteners can be dispensed with. The guide 16 of the carriage can be deduced particularly from Figure 5.

Guide 13 has a guide section 13.1, which is configured as a linear section. In the 13.1 guide section, 13.2 and 13.3 stop sections are connected to both sides. With this, the stop sections 13.2 and 13.3 are connected as angled or arched areas to the guide section 13.1.

Figure 1 also allows recognizing that on both sides of the housing 11, on both sides at the ends of the longitudinal side, flanges 14 are formed. The flanges 14 have clamping housings 14.1 (see Figure 5). With these clamping housings 14.1, the retraction device 10 can be screwed to the housing body of a piece of furniture. The retraction device 10 serves as for the alignment of sliding doors to this furniture. For this purpose, an activator 60 with a drive member 61 formed therein is formed in the sliding door. The activator 60 can be screwed through fastening housings 62 on the inner side with the sliding door. The retraction device 10 can be screwed, for example, into the inside of the shelf cover on the open face and facing the sliding shelf door (screw housings 14.1). The drive member 61 is sized so that it can find a place between a housing 56 of the drive member delimited by the two stops 53 and 54 (see Figure 2).

Next, the function of the retraction device 10 will be explained in more detail with reference to Figures 1 to 6.

In Figure 1 the shock absorber 20 is shown in its removed position, in which the piston rod 22 is partially removed from the cylinder 21 and the piston is in its final position. The spring 30 is in its tensioned position, by means of which it exerts a retraction force on the carriage 40. The unlocking part 50 is overturned in its first stop position, in which the guide piece 51 is housed in the section of unemployment 13.2. The second guide piece 52 is in the area of the guide section 13.1. With this, the guide piece 51 prevents, due to the trailing support in the first stop section 13.2, a displacement of the carriage 40 in the direction of the longitudinal extension of the guide section 13.1. The sliding door will slide along with the activator 60 from its final position from the right side to the left, as illustrated by the arrow S in Figure 1. During this sliding movement the drag member 61 acts on the stop 53. The Figure 1 shows the operating position shortly before impacting the drag member 61 on the stop 53. If now the drag member 61 acts on the stop 53, a force will thus be applied on the stop 53. This force acts eccentrically with respect to the tilting axis formed by the support piece 55 of the unlocking 50. In this way a torque will be applied which rotates counterclockwise on the unlocking piece 50. This torque determines that the guide piece 51 is lifted from the area of the first stop 13.2. Then, the guide piece 51 reaches the area of the linear guide section 13.1. As now the form-dragged connection between the first stop section 13.2 and the unlocking piece 50 has been suppressed, the spring 30 can act. This then pulls the carriage 40 and with it the release piece 50 to the left in the plane of the image according to Figure 1. With this, the force of the spring will oppose the damping action of the damper 20. Of this so the carriage 40 will travel cushioned. With this, the carriage guide 40 will be taken by the two guide pieces 51 and 52 as well as by the added guide piece 47 and the corresponding guide 13.1 or the carriage guide 16.

Figure 2 now shows the operating position of the unlocking part 50 and with it the carriage 40 shortly before the guide piece 52 reaches the second stop section 13.3. If the sliding door is still pulled to the left (from the spring 30), the guide piece 52 is thus guided next to the arc-shaped end section of the second stop section 13.3 and turns into this stop section 13.3. Figure 4 shows the overturned position of the release piece 50. As this representation allows, the stop 53 is now overturned, and the housing of the drive member 56 is released. With this, the drag member 61 and with it the sliding door can continue moving to the left in free movement.

As the course of Figures 1 to 4 shows, in this way a sliding door can be moved from its left end position until it meets the unlocking piece 50. The unlocking piece 50 then captures the sliding door and pulls it. towards the central position shown in Figure 4. From the defined final position shown in Figure 4, the sliding door can then continue to slide freely towards the other final position (left end position). If the sliding door is now to be moved from its final position from the left side to the right, the course of the figures must be according to Figures 4 to 1. Thus, the drag member 61 collides firstly against the stop 54 (Figure 4) and lifts it because of the application of the eccentric force acting from its second stop position 13.3. In this case, the guide piece 52 is lifted from the second stop section 13.3, until it reaches the area of the linear guide section 13.1 (transition from Figure 4 to Figure 3). Then, the unlocking piece 50 can be moved to the right, until it reaches the area of its first stop position. With this, the guide piece 51 will be taken to the zone of the first guide section 13.2. This is achieved by the eccentric force of the spring 30 acting on the tilting axis of the release piece 50. The spring turns the guide piece 51 downwards, as shown in Figures 2 and 1. In the position shown in Figure 1 is now again released the housing of the drive member 56 and the sliding door can slide to the right in free movement.

Figure 5 shows the operating position of the retraction device 10 according to Figure 4, in which the drive member 61 is moved out of the housing of the drive member 56. As this drawing shows, the sliding door can now slide to the right (arrow S), until it hits the stop 54. Then the operating position is reached according to Figure 4. The drawing according to Figure 4 corresponds to the drawing according to Figure 6.

In Figures 7 to 10 an extended embodiment variant of a retraction arrangement is now shown by using two retraction devices 10 according to Figures 1 to 6. As these drawings 7 to 10 show, the two retraction devices 10 are they occur so that the actuation directions of the springs 30 and of the shock absorber 20 are in the opposite direction. Accordingly, the damping direction of the shock absorber 20 of the front retraction device 10 acts to the left, while the damping action of the shock absorber 20 of the second rear retraction device 10 acts to the right. With the retraction arrangement 10 shown in Figures 7 to 10, a sliding door defined by both end positions can slide towards the central position. With this, said sliding door is always aligned exactly in the central position. Then, if the sliding door, for example as shown in Figure 7, slides from its right end position to the left, it acts in this way on the unlocking piece 50 of the front retraction device 10. Then the course described above of the retraction device will be activated. The unlocking piece 50 moves to the left, until the guide piece 52 of this first unlocking piece 50 is housed in the second corresponding stop section 13.3. As Figure 7 shows, the rear retraction device 10 is now in the operating position, as explained above in relation to Figures 5, 6 or 4. By moving the sliding door to the left, the drag member 61 can therefore transport the stop 53 of the second overturned unlocking piece 50 of the rear retraction device 10, until it reaches the central position shown in Figure 8. The drag member 61 is now captured in the second stop 54 of the second release piece 50 of the rear retraction device 10. However, at the same time, the drive member 61 is also fixed to the stop 54 of the front retraction device 10. With this, the sliding door cannot slide to the right or to the left without more, it is captured in its central position.

If the sliding door must then be slid to the left, as shown by arrow S in Figure 8, then the unlocking piece 50 of the rear retraction device 10 must be slid to the left. With this, the movement of movement is carried out against the force of the spring 30 of the rear retraction device 10, where the spring 30 is tensioned. At the same time, the shock absorber 20 of the rear retraction device 10 will be removed. The drive member 61 drags the release piece 50 until the rear retraction device 10 is moved to the second stop position. This stop position corresponds to the representation according to Figure 1. Then, the sliding door can continue to move to the left, until it finds its left end stop position.

If the sliding door must now be brought back from its left end stop position to the center position, it will first meet the stop 53 of the rear retraction device 10 and capture it. By applying the force, the unlocking part 50 of the rear retraction device 10 can now be moved from the second stop position. Then the spring 30 and the damper 20 of the rear retraction device 10 will act and will pull the sliding door towards the central position shown in Figure 8. The sliding door is now captured again by its body drag 61 between both stops 54 (rear retraction device 10) and 54 (front retraction device 10). If the sliding door is then moved to the right, the spring 30 of the front retraction device 10 is then loaded and tensioned. The shock absorber 20 is removed until the operating position is reached according to Figure 7. Then the sliding door can continue to run to the left in free movement.

The pair of Figures 8 and 9 show the switching process in which the drive member 61 is transferred from the housing of the drive member 56 of the front retraction device 10 to the housing of the drive member 56 of the rear retraction device 10.

Claims (11)

1. Retraction device (10), especially for sliding doors, with an unlocking part (50), which can be coupled, indirectly or directly, to a damper (20) of the retraction device (10) and a spring (30 ) of the retraction device (10), wherein the unlocking part (50) is movable from a first stop section (13.2) of a guide (13) of the retraction device (10) to a guide section (13.1) , and where the unlocking part (50) in the guide section (13.1) is adjustable against the damping force of the damper (20) in the damping direction, where the unlocking part (50) has a housing of the drive element (56), characterized in that the guide (13) has a second stop section (13.3), in which the unlocking part (50) is adjustable into a second stop position, because the second stop section (13.3) in front of the first stop section (13.2) is arranged in a direction towards damping, because the accommodation of the drive body (56) is released in the first stop position associated with the first stop section (13.2) and in the second stop position for the accommodation of a drive body (61), because the unlocking part (50) is coupled to a carriage (40) or has this, because the carriage (40) houses the unlocking part (50), and because the unlocking part (50) is supported on the carriage (40) so that a linear tilting movement is carried out with respect to the carriage (40) in the transition of the guide section (13.1) in the first and / or second tranche of unemployment (13.2, 13.3). 2. Retraction device according to claim 1, characterized by that the housing of the drive body (56) is released in the first stop position against the direction of damping, and because the housing of the drive body (56) is released in the second stop position in the direction of the damping 3. Retraction device according to one of claims 1 or 2, characterized by that Two stops (53, 54) are attached to the housing of the drag member (56) for fixing the drag member (61) in the housing of the drag member (56). 4. Retraction device according to claim 3, characterized by that one or both stops (53, 54) is / are adjustable (s) transversely to the adjustment movement of the unlocking part (50) against the initial tension of a spring element. 5. Retraction device according to one of claims 1 to 4, characterized by that the carriage (40) can be moved by means of an added guide piece (47) in a carriage guide (16) between the positions associated with both stop positions. 6. Retraction device according to one of claims 1 to 5, characterized by that The unlocking part (50) has two guide pieces (51,52), which are guided in an adjustable way in the guide (13), and in which case one of the guide pieces (51,52) can be introduced in each case. the associated unemployment position in an unemployment section (13.2, 13.3). 7. Retraction arrangement according to one of claims 1 to 6, characterized by It has two unlocking parts (50), which are connected in each case to a shock absorber (20) and a spring (30), where the direction of operation of the shock absorber (20) and the springs (30) is in opposite direction. . 8. Retraction arrangement according to claim 7, characterized by two retraction devices according to one of claims 1 to 6. 9. Method for fixing a sliding door with a retraction arrangement according to one of claims 1 to 8, wherein the sliding door can be adjusted from both sides from a central position to an end position, wherein the sliding door it is moved from the first final position by means of a drive member (61) of the sliding door against a first unlocking part (50) of the retraction device (10), by which the first unlocking part (50) is regulated from a stop position, because the first unlocking piece (50) is stretched towards the central position by means of a spring (30) and against the damping action of a damper (20), and because the unlocking part (50), by regulating the sliding door from the central position to the second final position, is regulated to a second stop position and the drive member (61) is released. 10. Method according to claim 9, characterized because The drive member (61) is housed in the central position of the sliding door in a second unlocking part (50) of a second retracting device (10), and by regulating the sliding door from the central position to the second final position a spring (30) connected to the second unlocking part (50) is tensioned. 11. Method according to claim 10, characterized by that by moving the sliding door from the second final position to the central position, the springs (30) of the second unlocking part (50) are tensioned and the second unlocking part (50) is damped against the damping direction of a shock absorber (20).