EP3020902B1 - Roller carriage for mounting a sliding door with a lift protection device - Google Patents

Description

The present invention relates to a roller carriage for accommodating a sliding door with an anti-lift device, a sliding door system with at least one roller carriage of this type, and a method for protecting a sliding door against being lifted out.

It is known that sliding doors must be placed in a slidable bearing in order to be movable between an open and a closed condition. For this purpose, the sliding doors, which can also be referred to as sliding door leaves, are equipped with a roller carriage to which the sliding door is attached. Of course, two or more roller carriages can also be attached to a sliding door. Such a roller carriage is known to be placed on a roller track or inserted into it in order to ensure the slidable mounting of the roller carriage and thus also the sliding door. It is also known to provide protection against unwanted removal of the roller carriage from the roller track. This is particularly necessary when, for example, the sliding door moves to an end position at high speed and is braked abruptly in this position. This abrupt deceleration can cause the kinetic energy to at least partially realign and cause the roller carriage to jump in the roller track. This can be so pronounced that the roller carriage jumps out of the roller track, which could cause the sliding door to fall down. In principle, it is also to be avoided that the sliding door is lifted out in an undesired manner.

way is excavated. This is an important functionality, especially with regard to unwanted intrusion or burglary protection.

The anti-jemmy devices provided in known sliding door systems are very simple in nature. For example, washers are used which can be brought into a protective position by rotation. In this position, the washers basically prevent lifting, but there is still a risk that such an eccentric washer will shift during operation, especially over a long period of use, and the protective function will thus be canceled again. Even with high mechanical loads on the roller carriage, especially with hard impacts in an end position, this can lead to unwanted adjustment of the protective function, so that despite the presence of such an anti-jemmy device, jumping out of the sliding door endangers the person using it.

From the DE 20 2005 007 687 U1 , DE 10 2011 050 395 A1 and DE 10 2010 038 141 A1 roller carriages for receiving sliding doors with an anti-jemmy device are known, which have an additional latching device in order to keep an anti-jemmy device in a protective position. By applying a force or a moment to the anti-jemmy means, a locking resistance of the locking device can be overcome and the anti-jemmy means can be brought into the release position. These roller carriages have the disadvantage of wear and tear on the locking device, which leads to a reduction in the locking resistance. Furthermore, the latching resistance can be overcome when the sliding door is subject to extreme stress.

It is the object of the present invention to at least partially eliminate the disadvantages described above. In particular, it is the object of the present invention to simplify assembly in a cost-effective and simple manner and to increase the operational reliability of a sliding door system and a corresponding roller carriage.

The above object is achieved by a roller carriage with the features of claim 1, a sliding door system with the features of claim 9 and a method with the features of claim 11. Further features and details of the invention result from the dependent claims, the description and the drawings. Features and details that are related to the Roller carriages according to the invention are described, of course also in connection with the sliding door system according to the invention and the method according to the invention and vice versa, so that with regard to the disclosure of the individual aspects of the invention reference is or can always be made to one another.

According to the invention, a roller carriage is provided for accommodating a sliding door. This roller carriage has a roller module for displaceable attachment to a roller track. A base body is also provided for attachment to the sliding door. The roller carriage has an anti-lifting device to protect against the roller module being removed from the displaceable attachment to the roller track. A roller carriage according to the invention is characterized in that the anti-jemmy device has an anti-jemmy means mounted movably between a protective position and a release position and a locking device for locking the anti-jemmy device at least in the protective position.

A roller carriage according to the invention has at least two components, namely the roller module and the base body. Of course, other components can also be provided and/or these two components can be composed of individual bodies. In terms of the present invention, a roller carriage is an overall system that fulfills at least two functions. On the one hand, the roller module makes it possible to slidably attach it to the roller track. Even if the terminology of rollers is used here, the attachment of bearing devices for rollers is only one possibility for designing a roller carriage according to the invention. Of course, such a roller carriage for the displaceable storage and a linear guide, for example Have plain bearings or a linear drive. However, in view of reduced complexity and reduced costs, the embodiment of rotatable rollers is preferred for such a storage device. The fastening of the sliding door is provided as a second function. This can be a clamping attachment, for example.

According to the invention, the roller module and the base body are separate components or separate bodies. Each of these two components, ie the roller module and/or the base body, can itself have a large number of individual parts which are connected to one another. For example, the roller module can have corresponding bearing devices in the form of rotatably mounted rollers. The base body can have a large number of individual components, such as further devices for additional functions. In addition to a height adjustment device, this can also be a safety device, a fixing device or else a clamping device, by means of which the sliding door can be fastened to the base body.

In principle, the direction of movement by means of the roller carriage is open according to the invention. A movement along a straight line can be carried out here in exactly the same way as a movement along a curved or multiply curved line of movement is conceivable within the scope of the present invention.

A displaceable attachment to a roller track is to be understood specifically for the respective embodiment of the bearing. If, for example, storage devices are provided in the form of individual rollers, these rollers are inserted into a corresponding roller track. Is, for example, a plain bearing provided, the roller module is attached to a corresponding slide rail or to a corresponding slide rail.

The roller module is preferably made from a cast steel material. The base body can be made lighter, for example from die-cast light metal. In particular, aluminum or zinc are used here as a light metal casting agent.

According to the invention, the roller carriage is now equipped with an anti-lift device. This serves the function of preventing the roller module from being removed intentionally or unintentionally. This is to avoid both an active unhinging of the roller carriage and the result of jumping due to mechanical impairment or high speed when the sliding door is moved. In both cases, the anti-jemmy device is intended to hold the roller module, and in particular a bearing device of the roller module, in the desired suspended contact and thus in engagement with the slidable attachment on the roller track.

In order to be able to ensure the function described above, the anti-jemmy device according to the invention is designed to mount an anti-jemmy device so that it can move between a protective position and a release position. These are in particular geometric correlations of the anti-lift device with the roller track or other components of a housing in which the roller track is arranged. A movement of the anti-jemmy device into a protective position can thus lead to a geometric correlation of the anti-jemmy device with a surrounding component. This correlation is based on a reduction in the freedom of movement of the entire roller carriage in or essentially in the direction of gravity. In other words, by reducing this freedom of movement, the maximum lifting height that is still geometrically permitted at all by this residual freedom of movement is reduced. The reduction takes place to a residual range of motion which is less than or equal to, but in particular completely less than, the maximum freedom from lifting off the roller track for the roller module to remain on the roller track. If, for example, the roller track is equipped with a convex running surface and a corresponding roller of a bearing device is equipped with a concave circumference, the depth of this concave circumference is the maximum permissible lifting height from the roller track. According to the invention, it is now ensured that the maximum residual movement possibility above the protective position of the anti-jemmy means is smaller than this maximum permissible height between the roller track and the associated bearing device.

In the release position, a significantly greater range of motion is provided, so that both the hanging of the roller carriage in the roller track and the deliberate active removal of the roller module or the roller carriage from the roller track can be done easily and, above all, quickly.

In addition to the differentiation of the two different positions, a locking device is provided according to the invention, which is in particular designed separately from the anti-jemmy device or separately from the anti-jemmy means. With the help of this locking device, the anti-jemmy means can be locked at least in the protective position. Locking can of course also take place in other positions. According to the invention, locking in the release position is provided, as will be explained later. Providing such a locking option now makes it possible to carry out a two-stage assembly. As soon as the roller carriage has been mounted or used on the roller track, the anti-jemmy device is then moved from the release position to the protection position. While the assembly was now complete in the known prior art, according to the invention the locking device is activated in an additional step and the anti-jemmy device is locked in the protective position. The result of this is that the locking device prevents the anti-jemmy device from moving out of the protective position, even if high mechanical impairments want to move the anti-jemmy device out of the protective position. This additional protection serves to further increase operational safety and, in particular, to prevent the roller carriage from being undesirably removed from the roller track with a probability of almost 100%. This is a great advantage, in particular in a correlation with corresponding damping elements in end stops for the roller carriage, which can lead to the corresponding action of force on the roller carriage.

According to the invention, a locking that is form-fitting at least in sections is provided. In addition to the positive locking, at least one other type of locking, such as a frictional locking or a force locking, can provide a corresponding locking. Of course, combinations of different locking functions are also conceivable within the meaning of the present invention. A form-fit design of the locking device, at least in part, is particularly simple and, above all, inexpensive to produce. This leads to simple geometric correlations later still described locking the locking function can be made available.

The anti-jemmy device can have additional functionality, in particular in the form of an elasticity that is made available. For example, the anti-jemmy means can have a spring-elastic design, at least in part. As a result, in the event of a movement in the direction of gravity for the roller carriage, contact of the anti-jemmy means with the corresponding securing housing wall of a roller track does not lead to a mechanical impairment of the anti-jemmy means. Rather, such jumping in the direction of gravity is dampened by such spring elasticity. The locking means is accordingly preferably made at least partially from a resilient plastic. Of course, other parts of the anti-jemmy device or also a section of the anti-jemmy device itself can be made of a different material, in particular metal.

In addition, the roller module is preferably attached to the base body for an adequate protective function. This attachment is in particular provided with a displaceable and fixable bearing, so that a basic height adjustability between the roller module and the base body relative to each other is possible. This creates an overall system of the roller carriage in itself, for which the overall function of the anti-jemmy device acts.

According to the invention, the locking device for locking in the release position is designed in the roller carriage. An additional locking position is thus made available. Locking the release position makes assembly easier in particular. For example, when inserting the roller carriage with the sliding door already installed, the Impede anti-lift device insertion or prevent it altogether. The locking of the anti-jemmy device in the release position avoids this, so that assembly is made possible simply, inexpensively and quickly even in difficult and, above all, heavy situations. In addition, such a locking option also makes it easier to find the release position for this assembly process. In particular, the locking device is limited to only these two defined locking positions, so that all other positions are preferably unstable positions, which are automatically transferred, for example by spring force or inclined planes, to one of the two stable positions, namely the locked protection position or the locked release position. This also further increases the overall safety of a roller carriage according to the invention, both during assembly and during use.

According to the invention, the locking device of the roller carriage has at least one locking means for at least partially interlocking engagement in a locking receptacle, which correlates with the protective position of the anti-jemmy device. The locking means is designed for an at least partially form-fitting engagement in a further locking receptacle, which correlates with the release position of the anti-jemmy means.

For example, a correlation between a locking pin as a locking means and a corresponding locking groove as a locking receptacle can be provided. Such a pin or cam thus engages in the locking receptacle. Locking can of course also be achieved by means of a kinematic reversal. Significantly more complex geometric shapes are also conceivable within the scope of the present invention for the formation of the locking means or the locking receptacles. An at least partially form-fitting pick-up leads to the fact that blocking or locking is based in particular on surface contact. In principle, the locking receptacle can be larger than the associated locking means, but at least a part of the surface of the locking receptacle comes into planar contact with a part of the surface of the locking means and in this way forms the desired partial form fit. Such an enlargement is preferably even provided, so that the locking and thus the protective position or the release position can be found more easily. Accordingly, it is preferred if the locking receptacle is designed to be between about 5% and about 10% larger than the corresponding outer contour of the locking means. Of course, guide means acting in the direction of a locking movement can also be provided, which can ensure appropriate guidance of the locking means in its locking position, for example in the form of conical or inclined surfaces.

It is a further advantage if, in the case of a roller carriage according to the invention, the anti-jemmy device is mounted such that it can be rotated about a movement axis between the protective position and the release position. The anti-jemmy device has an anti-jemmy section, with an at least sectionally eccentric outer contour. This outer contour is formed eccentrically in relation to the axis of rotation and thus the axis of movement of the anti-jemmy device. In correlation with a corresponding roller track, this means that the overall extension of the anti-jemmy device can be changed by rotating the anti-jemmy section. In the protection position, this extension in the direction of gravity is greater than in the release position. This leads to the possibility, already described at the outset, of changing the correlation and thus the gap dimension between the anti-jemmy device, in particular the anti-jemmy section, and the opposite part of a housing wall or the roller track and in this way fulfilling the protective function. It is preferred if the movement of the anti-lift device around the movement axis is less than approximately 90° and if at least one end stop is correspondingly provided for limiting this movement. In this way, a changeover between the protection position and the release position can take place with a single movement of the hand. Particularly after the roller carriage has been installed when it is inserted into the roller track, rapid anti-jemmy protection can limit the risk of the entire sliding door falling down undesirably to a minimum.

It is also advantageous if, in a roller carriage according to the invention, the roller module has a support section which in sections extends circumferentially along the lifting section below the anti-lifting section in relation to a direction of gravity. Such a support section is preferably arranged with a defined movement gap to the anti-jemmy section. This is designed to be small and, for example, in the range of less than approx. 2 mm, in particular +/- 1 mm. This support section serves to in the event of a deformation of the anti-jemmy device, in particular a bending of the anti-jemmy section downwards in the direction of gravity, to contact it. The contact now allows an additional possibility of support by opening up an additional force path via this support section. At least part of the force can now also be intercepted and in this way additional support, mechanical impairment or damage to the anti-jemmy means can be avoided. This support function reduces the necessary mechanical load-bearing capacity of the anti-jemmy section and of the anti-jemmy means, so that they can be made simpler, lighter and cheaper. If a roller carriage jumps off the roller conveyor when it hits hard in an end position, bending of the anti-jemmy section can now be relieved mechanically in a sufficient manner by being supported on the support section.

It is also advantageous if, in a roller carriage according to the invention, the anti-lifting section has a convex surface section. In particular, a radius in the range between approx. 5 mm and approx. 20 mm is provided here. In particular, a cylindrical surface section or a spherical surface section can be provided here in order to be able to compensate for corresponding manufacturing tolerances due to the convex design. This leads to less complexity and greater functional reliability of the anti-jemmy device in terms of production costs and in particular when assembling the roller carriage.

It is also advantageous if, in a roller carriage according to the invention, the anti-jemmy device has at least a first spring element which acts as a means of anti-jemmy movement in the direction of the Protection position acted upon by a spring force. This can be a torsion spring, for example. Springs that act in combination can also be used as the first spring element within the meaning of the present invention. Because the anti-jemmy device can be moved in rotation, a torsion spring, for example, as the first spring element, can provide a preload that automatically moves the anti-jemmy device into the protective position when the load is relieved. This increases safety even further, since after a corresponding counterforce has been removed, for example by removing an assembly tool from an associated handling interface, the protective position is automatically assumed by the anti-jemmy device. Such a torsion spring can be made of steel or one Elastomer material are made available. In particular, this embodiment is combined with a second spring element according to the following paragraph.

According to the invention, the locking device has at least one second spring element, which applies a spring force to the locking means in the direction of a locking position. Thus, such a locking means is capable of being movably mounted between a locking and a non-locking position. This movement is carried out together with the anti-lift device. The procedure is as follows due to the inventive fixed connection between the locking means and anti-jemmy means.

First, an axial, linear movement of the anti-lift means is performed. Due to the fixed connection, this movement takes the locking means with it into its non-locking position. A rotational movement then takes place into the protective position, which is followed by a linear counter-movement. The anti-lift device is now in place by the rotational movement in the protective position and by the axial or linear return movement, the locking means in the locking position for the protective position. The movements described above take place against or with the corresponding spring force. The prestressing in the direction of the locking position ensures that the locking takes effect automatically when a corresponding assembly force is removed, for example by removing an assembly tool.

It is also advantageous if, in a roller carriage according to the invention, the anti-jemmy means of the anti-jemmy device has a handling interface for introducing an assembly force to carry out an assembly movement of the anti-jemmy means. Such a handling interface can, for example, have knurling in order to carry out a corresponding assembly movement with the fingers. A corresponding handling interface in correlation to an assembly tool is also conceivable within the meaning of the present invention.

It is advantageous if, in a roller carriage according to the invention, the handling interface is arranged on a first side of the roller carriage and a bearing device of the roller module for the displaceable attachment to the roller track is arranged on a second side of the roller carriage, which is aligned opposite to the first side is. This facilitates accessibility, since in this way the anti-jemmy device can be adjusted from the front. In this case, handling interfaces can also be aligned in the same way for other mounting devices for other functions, so that the advantages of adjustability are shared for all mounting devices become achievable. This leads to a significantly reduced complexity of the entire assembly effort and thus to reduced assembly time.

Another object of the present invention is a sliding door system, having a roller track and at least one roller carriage according to the invention that is displaceably mounted in the roller track. At least one sliding door is preferably mounted in such a roller track by means of at least two roller carriages. By using a roller carriage according to the invention, a sliding door system according to the invention brings with it the same advantages as have been explained in detail with reference to a roller carriage according to the invention.

• verschiebbares Anbringen eines Rollenwagens gemäß der vorliegenden Erfindung auf der Rollenlaufbahn,
• Bewegen des Aushebeschutzmittels der Aushebeschutzvorrichtung aus einer Freigabeposition in eine Schutzposition,
• Arretieren des Aushebeschutzmittels in der Schutzposition mittels einer Arretiervorrichtung.

Another object of the present invention is a method for protecting a sliding door of a sliding door system according to the present invention, comprising the following steps:

• slidably mounting a roller carriage according to the present invention on the roller track,
• moving the anti-jemmy means of the anti-jemmy device from a release position to a protection position,
• Locking the anti-jemmy means in the protective position by means of a locking device.

By using a roller carriage according to the invention, a method according to the invention brings with it the same advantages as have been explained in detail with reference to a roller carriage according to the invention.

Fig. 1

eine Ausführungsform eines Rollenwagens,

Fig. 2

eine Ausführungsform einer Schiebetürenanlage,

Fig. 3

eine seitliche Darstellung eines Rollenwagens in einer Rollenlaufbahn,

Fig. 4

eine seitliche Darstellung eines Rollenwagens im Querschnitt,

Fig. 5

die Darstellung der Fig. 4 in isometrischer Ansicht,

Fig. 6

eine seitliche Darstellung eines Rollenwagens mit Aushebeschutzvorrichtung,

Fig. 7

die Aushebeschutzvorrichtung in Schutzposition,

Fig. 8

die Ausführungsform der Fig. 7 in Freigabeposition,

Fig. 9

eine Ausführungsform einer Aushebeschutzvorrichtung in Schutzposition,

Fig. 10

die Ausführungsform der Fig. 9 während des Umschaltens und

Fig. 11

die Ausführungsform der Fig. 9 und 10 in Freigabeposition.

Further advantages, features and details of the invention result from the following description, in which exemplary embodiments of the invention are described in detail with reference to the drawings. They show schematically:

1

an embodiment of a roller carriage,

2

an embodiment of a sliding door system,

3

a side view of a roller carriage in a roller track,

4

a side view of a roller carriage in cross section,

figure 5

the representation of 4 in isometric view,

6

a side view of a roller carriage with anti-lift device,

7

the anti-jemmy device in protective position,

8

the embodiment of 7 in release position,

9

an embodiment of an anti-lift device in the protective position,

10

the embodiment of 9 during switching and

11

the embodiment of Figures 9 and 10 in release position.

In 1 an embodiment of a roller carriage 10 is shown in an isometric view. This has two basic components. These are, on the one hand, the roller module 20 and, on the other hand, the base body 30. Both components, that is to say the roller module 20 and the base body 30, have a large number of different individual parts. These individual parts are briefly explained below.

The roller module 20 is equipped with a storage device 26 here. This bearing device 26 is equipped here in the form of two rollers 26a, which are rotatably mounted on a base body of the roller module 20. These rollers 26a can now be used on or in a roller track 120, as in FIG 2 and the 3 is easy to see. Part of a height adjustment device 70 is also provided on the roller module 20 . The detailed components of this height adjustment device 70 are particularly in the Figures 4 and 5 shown. A first adjustment means 32 is provided here, which can carry out an adjustment movement with the aid of a handling interface 36 . Since the first adjusting means 36 is designed here as a threaded screw in an adjusting thread 32a, a rotational movement takes place at the handling interface 36, which at the same time generates a linear translational movement of the first adjusting means 32. The first adjustment means 32 is in operative connection with a counter-contact section 24 of the second adjustment means 22 of the roller module 20 via a corresponding contact section 34. The explicit effect of this adjustment device is a conversion of the Adjustment movement in an adjustment movement along the direction of gravity SKR.

How from the 1 can be seen, the roller carriage 10 is equipped with a plurality of different assembly devices 90, which can provide different assembly functions. The adjustment function of the height of the sliding door 110 already described is provided by the assembly device 90 in the form of the height adjustment device 70 . A mounting device 90 in the form of a safety device 50 is also provided, which provides a clamping fixation between the base body 30 and the roller module 20 after the height of the sliding door 110 has been adjusted.

Another assembly device 90 is an accessory device 40 here, which is provided by a corresponding interface and an attached accessory module 300 . In addition, an anti-jemmy device 60 is provided as a mounting device 90, which provides anti-jemmy protection against the roller carriage 10 undesirably leaving the position used in the roller track 120. Furthermore, a fastening device 80 is provided as a glass clamp for a mounting device 90 in order to fasten the sliding door 110 in a clamping manner.

It is common to all assembly devices that they have at least one assembly means 92 in order to be able to carry out a corresponding assembly movement. In addition, a handling interface is provided in order to be able to carry out exactly this assembly movement with the assembly means.

Once again 1 As can also be seen, the roller carriage 10 has different sides, namely the first side 12 and the second side 14. In terms of their handling interface 96, all assembly devices are preferably from the same side, namely the first side 12 opposite to the second side 14, on which the bearing device 26 is arranged, aligned. This enables significantly easier access.

In 2 is shown as a sliding door 110 of two roller carriages 10 according to 1 is held and these two roller carriages 10 are already used in the roller track 120. In a side view according to 3 In particular, the correlation of the rollers 26a with the roller track 120 can be clearly seen.

the 6 shows the roller module 20 in a side view and explicitly the anti-jemmy device 60 there. The representation according to 6 FIG. 12 shows the anti-jemmy device 62 and in particular the anti-jemmy section 62a in its protective position SP. At the same time, the locking device 64 can be seen here as a pin-shaped extension, with only the locking means 64a being visible from the rear. At the same time, a surface section 62b can be seen in the area of the anti-jemmy section 62a, which has a convex surface curvature, which cannot be seen here, in order to be able to compensate for corresponding manufacturing tolerances. Details on this are given in particular in Figures 7 and 8 apparent.

That's how they show Figures 7 and 8 the two different positions, namely in 7 the protection position SP and in 8 the release position FP. The anti-jemmy device 62 can be rotated between these two positions. In the protective position SP it can be seen that there is a small gap between the surface section 62b of the anti-jemmy section 62a and a corresponding housing wall, here the running rail 130 . This gap is so small that lifting until contact is made with the running rail 130 does not result in removal from the roller running track 120 . The possible upward movement in the direction of gravity SKR is particularly important 3 to recognize. Due to the concave design of the rollers 26, lifting can take place counter to the direction of gravity SKR and a holding function remains due to the convex design of the roller track 120. The in 7 noticeable gap is also in 3 seen above with reference to the roll module 20. In 8 shows how the described gap is significantly enlarged by rotating the anti-jemmy device 62 by less than 90°, so that the surface section 62b of the anti-jemmy section 64 is now disengaged and the roller carriage 10 can be inserted or lifted out of the roller track 120 .

the Figures 9 to 11 show details regarding the switching in an embodiment with spring elements. A first spring element 66 and a second spring element 64c are provided here, both of which are designed here in combination with their function as helical springs that act in a rotational and axial manner. These two spring elements 64c and 66 act as follows. In 9 the anti-jemmy device 60 is in the activated position, ie the anti-jemmy means 62 is in the protective position SP. In order to make a movement available, a linear or axial movement along the movement axis BA now takes place in order to disengage the locking means 64a from a corresponding locking receptacle 64b. The end of this movement shows the 10 , at which the complete Anti-lifting section 62a is displaced to the left against the spring force and thus the locking means 64a is exposed. A rotation about the movement axis BA is now possible until the anti-lifting section 62a reaches the release position FP according to FIG 11 reached. If the associated force is now removed, the entire anti-lift device 62 moves back axially linearly to the right along the movement axis BA and the locking device 64a engages in the locking receptacle 64b in order to ensure the locking function. Of course, this procedure can also be reversed in order to switch from the release position FP to the protection position SP.

The above explanation of the embodiments describes the present invention exclusively in the context of examples. Of course, individual features of the embodiments can be combined with one another, as defined in the claims, without departing from the scope of the present invention.

Reference List

10

roller carriage

12

first page

14

second page

20

role module

22

second means of adjustment

24

mating contact section

26

storage device

26a

role

30

body

32

first means of adjustment

34

contact section

36

handling interface

38

reinforcing rib

40

accessory device

50

safety device

52

stop device

60

anti-lift device

62

anti-digging device

62a

anti-jemmy section

62b

surface section

64

locking device

64a

locking means

64b

locking mount

64c

second spring element

66

first spring element

68

handling interface

70

height adjustment device

80

fastening device

90

assembly device

92

mounting means

96

handling interface

100

sliding door system

110

sliding door

120

roller track

130

running rail

300

accessory module

SKR

direction of gravity

B.A

motion axis

SP

protective position

FP

release position

Claims (11)

1. A roller carriage (10) for receiving a sliding door (110), having a roller module (20) for displaceably attaching to a roller running track (120) and having a main body (30) for fastening to the sliding door (120), wherein the roller carriage (10) has a lift-off protection device (60) for protecting against the roller module (20) being removed from the displaceable attachment to the roller running track (120),

   wherein the lift-off protection device (60) has a lift-off protection means (62) movably mounted between a protection position (SP) and a release position (FP) as well as a locking device (64) for locking the lift-off protection means (62) in a form-fitting manner at least in the protection position (SP),

   wherein the locking device (64) has at least one locking means (64a), for engaging into a locking receptacle (64b) in a form-fitting manner at least in sections which correlates to the protection position (SP) of the lift-off protection means (62) and for engaging into another locking receptacle (64b) in a form-fitting manner at least in sections which correlates to the release position (FP) of the lift-off protection means (62),

   wherein the locking device (64) has at least one second spring element (64c), which applies a spring force to the locking means (64a) in the direction of the locking positions, wherein there is a fixed connection between the locking means (64a) and the lift-off protection means (62),

   characterized in that

   through this fixed connection, an axial movement of the lift-off protection means (62) entrains the locking means (64a) into a non-locking position and a rotational movement of the lift-off protection means (62) into the protection position (SP) and a linear backwards movement of the lift-off protection means (62) entrains the locking means (64a) into a locking position for the protection position (SP).
2. The roller carriage (10) according to claim 1, characterized in that the lift-off protection means (62) is mounted so as to be movable in a rotary manner about a movement axis (BA) between the protection position (SP) and the release position (FP), wherein the lift-off protection means (62) has a lift-off protection section (62a), with an at least sectionwise eccentric outer contour.
3. The roller carriage (10) according to claim 2, characterized in that the roller module (20) has a support section (28), which extends in sections circumferentially along the lift-off protection section (62a) in relation to a direction of gravity (SKR) below the lift-off protection section (62a).
4. The roller carriage (10) according to one of claims 2 or 3, characterized in that the lift-off protection section (62a) has a convex surface section (62b).
5. The roller carriage (10) according to one of the preceding claims, characterized in that the lift-off protection device (60) has at least one first spring element (66), which applies a spring force to the lift-off protection means (62) in the direction of the protection position (SP).
6. The roller carriage (10) according to one of the preceding claims, characterized in that the lift-off protection means (62) of the lift-off protection device (60) has a handling interface (68) for introducing a mounting force to carry out a mounting movement of the lift-off protection means (62).
7. The roller carriage (10) according to claim 6, characterized in that the handling interface (68) is arranged on a first side (12) of the roller carriage (10) and a bearing device (26) of the roller module (20) for the displaceable attachment to the roller running track (120) is arranged on a second side (14) of the roller carriage (10) aligned opposite to the first side (12).
8. The roller carriage (10) according to one of the preceding claims, characterized in that the lift-off protection device (60), at least in sections, in particular the lift-off protection means (62) at least in sections, is designed from a plastic.
9. A sliding door system (100), having a roller running track (120) and at least one roller carriage (10) displaceably mounted in the roller running track (120) having the features of one of claims 1 to 8.
10. The sliding door system (100) according to claim 9, characterized in that at least one sliding door (110) is displaceably mounted in the roller running track (120) by means of at least two roller carriages (10) having the features of one of claims 1 to 8.
11. A method for protecting a sliding door (120) of a sliding door system (100) having the features of one of claims 9 or 10, having the following steps:

    - displaceable attachment of a roller carriage (10) having the features of one of claims 1 to 8 to the roller running track (120),

    - linear backwards movement of the lift-off protection means (62) in order to entrain the locking means (64a) into a locking position for the protection position (SP),

    - rotational movement of the lift-off protection means (62) of the lift-off protection device (60) from a release position (FP) into a protection position (SP),

    - linear movement to lock the lift-off protection means (62) in the protection position (SP) by means of a locking device (64).

Images