CN113685110B

CN113685110B - Locking device for sliding door installation and sliding door installation

Info

Publication number: CN113685110B
Application number: CN202110527313.2A
Authority: CN
Inventors: 马蒂亚斯·德吕; 乌韦·威廉; 凯·格罗恩
Original assignee: Dorma Deutschland GmbH
Current assignee: Dorma Deutschland GmbH
Priority date: 2020-05-18
Filing date: 2021-05-14
Publication date: 2025-04-25
Anticipated expiration: 2041-05-14
Also published as: EP3913176C0; EP3913176A1; DE102020113394B4; EP3913176B1; DE102020113394A1; CN113685110A

Abstract

The invention relates to a locking device for fixing a belt of a sliding door system, comprising a housing in which an actuator and a travel device are accommodated, the travel device being displaceable in the housing in a linear manner by means of the actuator, a guide mechanism being provided at the travel device, the guide mechanism being guided in a first guide rail, a locking slide being provided in or at the housing, the locking slide being movable into a locking position towards the belt and into a release position away from the belt, a second guide rail being formed in the locking slide, in which second guide rail the guide mechanism is likewise guided, a pawl being accommodated at the locking slide, the pawl being formed for engagement into the belt and being displaceable at the locking slide in the direction of extension of the belt. According to the invention, a ramp is formed in the receptacle between the pawl and the locking slide, by means of which ramp an additional closing path can be produced which exceeds the locking position of the pawl when a pulling force is applied to the belt in the locking direction.

Description

Locking device for sliding door device and sliding door device

Technical Field

The present invention relates to a latch for a sliding door apparatus and a sliding door apparatus equipped with the latch.

Background

Various locking devices are known for such devices. For example, there are locking devices integrated into the door leaf drive. This makes, for example, retrofitting and application of the locking pin difficult, requiring a lot of construction space, as is for example visible from WO 2015/188209 A1.

Other types of latching are based on engagement of a latching pin with a gear, for example, on a steering roller of a belt drive. This requires a costly control in terms of the locking pin in order to ensure locking. If someone pulls, for example, at the door leaf, this causes a very large load at or in the locking device due to leverage. Furthermore, the adjustment of the door locking position is complicated.

For example, CN 108131063A discloses a simple design of a locking device for fixing a belt of a sliding door apparatus with a locking slider.

A locking device for securing a belt of a sliding door system is known from DE 10 2019 108 270 A1, which is disclosed later, comprising a housing in which an actuator and a travel device are accommodated, wherein the travel device is linearly displaceable in the housing by means of the actuator, and wherein at least one guide means is provided at the travel device, which guide means is guided in a first guide slot in the housing, and wherein a locking slide is provided in or at the housing, which is movable in a movement direction toward the belt into a locking position for locking the belt and away from the belt into a release position for releasing the belt, wherein at least one second guide slot is formed in the locking slide, in which second guide slot the guide means is likewise guided, and wherein a pawl is accommodated at the locking slide, which pawl is formed for engagement into the belt and is displaceable at the locking slide in an extension direction of the belt.

The disadvantage is that the locking slide can only be moved back and forth between the locking position and the release position. In the locking position, a belt having a tooth structure facing the locking slide or facing the pawl is held between the pawl and the housing section of the housing. In this holding position, a predetermined amount of tension must be applied to the belt for locking reliability, without the belt sliding between the pawl and the housing section, for example, during a breaking test. Slip must also be reliably prevented when, for example, grease or oil is present on the belt or when the closure has been used for a longer period of time.

However, the disadvantage is that the position of the locking slide or pawl in the locking position is toleranced, so that even when the belt is clamped, there may be lateral residual air in the locking position of the pawl, for example between the belt and the housing. The remaining air of a few tenths of a millimeter may result in the inability to maintain the tension on the belt required for closure reliability by closure reliability and belt slip.

Disclosure of Invention

The object of the invention is therefore to address the above-mentioned disadvantages and to further improve the clamping of the belt between the pawl and the housing in the locking position of the pawl.

The object is achieved on the basis of the locking device according to the invention and on the basis of the sliding door apparatus according to the invention. Advantageous refinements of the invention are explained below.

The invention comprises the technical teaching that a locking device for fixing a belt of a sliding door device comprises a housing in which an actuator and a travel device are accommodatedThe travel device is linearly displaceable in the housing by means of the actuator, and at least one guide mechanism is provided at the travel device, which guide mechanism is guided in a first guide slot in the housing. The locking slide is arranged in or at the housing in a movable direction towards the belt into a locking position for locking the belt and away from the belt into a release position for releasing the belt. For this purpose, at least one second guide rail is formed in the locking slide, in which second guide rail the guide means likewise guide. A pawl is movably accommodated at the locking slide, which pawl is configured for engagement into the belt and is displaceable at the locking slide in the direction of extension of the belt by the movability of the pawl.

According to the invention, at least one ramp is formed in the receptacle between the pawl and the locking slide, by means of which ramp an additional closing path can be produced which exceeds the locking position of the pawl when a pulling force is applied to the belt in the locking direction. The ramp has the effect that the pawl moves laterally and additionally towards the belt via the inclined portion of the ramp, also engages deeper with the belt and presses or presses the belt towards the rear housing face so that the air gap is thereby reduced or even eliminated.

As long as the sliding doors are coupled to one another in a moving manner via a transmission mechanism, such as a belt drive or the like, this enables a reliable locking of the relevant sliding door, for example in the form of a sliding door leaf or a multi-leaf sliding door arrangement. In this way, the end position of the door leaf does not have to be exactly achieved during locking. The associated door leaf may also be slightly outside the true latched position. In addition to this, the closure can also be easily integrated into existing door leaf systems and can follow a minimum closing force.

Preferably, the locking slide has a guide surface, by means of which the pawl is guided in the direction of extension of the belt at the locking slide. At least one ramp is formed in the guide surface. The ramp causes the locking slide to move via the pawl toward the belt, so that the locking slide reliably engages the belt in a positive and/or positive manner and reaches a minimum closing force.

The guide surface has, in particular, a first slope and a second slope which is formed at a distance from the first slope. This type of guidance has the advantage of a particularly low-friction guidance, since only small scattered contact surfaces are formed at the ramp, and the guidance of the pawl provided at the locking slide is statically determined and does not wobble. By a flat ramp, the self-locking remains small upon rebound.

The pawl has a mating guide surface that is substantially complementarily configured relative to the guide surface. The mating guide surface can be guided toward a ramp, which is formed in particular or preferably at the locking slide, wherein the ramp and the mating guide surface together form a ramp arrangement with the desired effect to some extent, wherein the guide edge at the locking slide can alternatively also be guided toward a planar ramp at the locking slide.

Furthermore, it is proposed that a first spring element is arranged between the locking slide and the pawl, said first spring element pre-stressing the pawl in the locking direction. A defined position of the pawl at the locking slide is thereby achieved, so that, in particular if the pawl is not engaged with the belt in the release position, the pawl is not held in any position at the locking slide, but rather occupies a neutral position known in advance.

Furthermore, a second spring element can be provided, which is arranged between the locking slide and the pawl and which pretensions the pawl against the locking direction. The spring force of the second spring element is advantageously greater than the spring force of the first spring element. This ensures that, when moving in the unlocking direction, the pawl is also reliably disengaged from the belt and does not interfere with the position by the first spring element.

According to a second embodiment, a cover element can be provided at the housing, at which the second spring element is formed, and the variant provides a simple one-piece construction with the cover element. When the cover element thus constructed is placed, the spring element is brought into effective engagement by contact with the locking element.

The second spring element at the cover element can be embodied here as a spring clip. The spring clip is arranged or molded at the cover element and is set up in a gap between the locking slide and the inner face of the housing. This is a very simple and low-cost construction, so that the cover module can be manufactured and can be brought into effective engagement with the locking element simply by means of placement onto the housing.

According to an alternative second embodiment, in each of the aforementioned locking devices, the ramp is formed as a section in the first guide rail. Preferably, the section is connected in the first guide slot to a position in which the guide means are located when the locking slide is in the locking position.

If a tensile force is applied to the belt in the locking direction, the locking slide is likewise displaced in the locking direction when the pawl bears positively against the locking slide and the pawl engages in the tooth provided in the belt, while the second spring element is compressed between the locking slide and the component of the housing. The guide means can be moved further into the section connected according to the invention in the first guide chute, which is achieved by residual magnetism in the linear motor. The sections in the first guide rail are formed in a bent manner toward the belt, so that an alternative shape of the ramp is formed in the contour of the guide rail, along which alternative shape the guide means can be moved. The locking slide is thereby also pressed with the pawl against the belt, whereby, in an alternative manner, tolerances in the clamping of the belt between the pawl and the housing part are likewise squeezed out to some extent.

Preferably, the pawl which is accommodated and guided in or at the locking slide via a ramp is made of a metallic material comprising a silicon-copper-zinc alloy (Siliziumtombak) material. The material is particularly low-loss and friction-optimized, in particular when forming friction pairs with steel materials. In a second alternative embodiment, the detent can be formed from plastic, since the guidance is not performed by means of the detent for tolerance compensation, but by means of a housing cover formed from plastic.

The invention also relates to a sliding door device with the locking device. The sliding door device can be configured in a single-leaf or multi-leaf manner.

If the sliding door apparatus is configured as a multi-leaf sliding door apparatus, its door leaf can be connected to the belt such that when the door leaf in the closed position is pulled open and thus pulled in the opening direction, a pulling force can be generated in the locking direction on the belt. That is, the locking device must only be engaged with the pawl into the belt when the door leaf is opened. A bistable solution can thereby be achieved, in which only electrical energy is required if the locking device should be unlocked or not allowed to be locked.

Drawings

Further measures for improving the invention are shown in detail below together with a description of a preferred embodiment of the invention according to the drawings. The drawings show:

figures 1a and 1b show two views of a locking device according to a first embodiment of the invention,

Figure 2 shows the drive section of the locking device of figure 1,

Figures 3a and 3b show two exploded views of a blocking section of the blocking device of figure 1,

Figures 4a and 4b show respective vertical longitudinal sectional views of the locking device of figure 1 in two operating positions,

Figure 5 shows a further vertical section through the locking device of figure 1 in a vertical section,

Figure 6 shows a vertical longitudinal section of a locking device according to a second embodiment of the invention,

Fig. 7 shows a detail view of the cover element of the closure of fig. 6, and

Fig. 8 shows a vertical longitudinal section of a locking device according to a second embodiment of the invention.

Detailed Description

Fig. 1a shows a perspective view of a locking device 100 according to a first embodiment of the invention. The locking device 100 comprises a housing 11 in which a locking member is accommodated. At the front side of the housing 11 a cover element 26 and preferably a sensor holder 30 are arranged. The housing 11 and the cover element 26 enclose a belt guide space 25 for a tensioning edge of the belt 10, not shown here. The housing 11 and the sensor holder 30 enclose a belt guide space 25 for the lower slack side (Freitrum) of the belt 10. The projection of the traveling device 13, which will be described later in detail, protrudes from the right side of the housing 11. The projection can be actuated by means of an actuating mechanism in a leftward pressing manner, so that the closure can be released manually in the event of an emergency.

The illustrated pawl 18 is accommodated at the housing 11 and is capable of locking a belt, not illustrated, in the belt guide space 25 in the locking direction SR. The pawl 18 preferably has a tooth profile at the side facing away from the cover element 26, which is substantially complementary to the tooth profile of the belt 10, which is directed towards the pawl 18 in the upper belt guide space 25. The pawl 18 can thereby be locked in an advantageous form-fitting manner with the belt 10 in such a way that it is fixed, and thus in such a way that the connected door leaf/leaves of the door leaf arrangement are locked.

Fig. 1b shows a partially exploded view of the locking device 100. The housing has a rear part 11a which closes or closes the other closure device 100 towards the rear side. The housing part 11b fastened thereto serves to accommodate the components of the locking device 100, i.e. the element which moves the actual locking element in the form of the pawl 18 between the unlocking position and the locking position. An actuator 12, which is exemplary in the form of a coil with a core, is accommodated between the housing part 11a and the housing part 11b, wherein the rear housing part 11a is shown removed. The travel device 13 interacts electromagnetically with the actuator 12 and, when the actuator 12 is energized, moves to the left or to the right in the closing direction SR or counter to the closing direction SR between the closing position and the opening position.

Two guide means 14 are formed at the travel device 13 in such a way as to project toward the cover element 26. The guide means 14 is a pin having a bearing, in particular a rolling bearing, of circular cross section, arranged rotatably thereon. The guide means 14 are thereby guided in the respective first guide groove 15 of the housing part 11c in the closing direction SR or counter to the closing direction SR. Thereby also guiding the travelling device 13.

The presence of the locking slide 16 is visible between the cover element 26 and the pawl 18.

Fig. 2 basically shows a detailed enlarged view of the actuator 12 connected to the travel device 13 of the locking device 100, in particular without the housing 11. The running gear 13 is preferably formed from ferromagnetic material, with respective sections in the form of running gear elements 13a being present approximately centrally on the right and left, between which permanent magnets are arranged in a manner not shown in detail.

The travel device 13 is guided by means of guide rollers 28 arranged in quadruple at the actuator 12 on the side facing away from the housing part 11b in the closing direction SR (not shown). The axis of rotation of the guide roller 28 extends perpendicularly to the closing direction SR and preferably transversely to the direction of movement of the travelling device 13. The guide roller 28 is rotatably provided so that the traveling device 13 is guided with low friction.

Fig. 3a and 3b show two exploded views of the components of the locking device 100. The locking slide 16 has, on its side facing the pawl 18, a guide groove 16b which is open with respect to the end face and closed with respect to the opposite end face. The guide groove 16b is surrounded laterally by two protrusions 16a extending away from each other in a flange shape.

The pawls 18 include guide grooves 18b, which are C-shaped in cross section, facing each other, surrounding the protruding portions 16a. Thereby, the pawl 18 is guided at the locking slide 16 in the closing direction SR, but with a small gap in a direction transverse to the closing direction SR and transverse to the projection 16a. The pawl 18 further comprises non-labeled projections which are formed between the guide grooves 18b and are formed at a distance from the guide grooves 18 b. The projection is accommodated in a guided manner in the guide groove 16 b. At one end, the projection has a projection 18a projecting towards the locking slide 16 or the guide groove 16b, so as to form a ramp according to the invention.

A first spring element 23 is tensioned between the projection 18a and the spring stop 29. The spring element 23 presses the pawl 18 in the closing direction SR at the locking slide 16.

In an approximately central region, the locking slide 16 comprises two curved second guide rails 17, into which the guide means 14 protrude and are guided on the inside in the guide rails 17 by means of bearings. The special bending of the guide rail 17 causes the locking slide 16 to move with the pawl 18 toward the belt and can thereby clamp the belt when the guide 14 is moved transversely to the closing direction SR.

In the locked position, the pawl 18 is thus pressed against the belt 10, but the belt may also have air due to tolerances relative to the pawl 18.

In order to automatically squeeze out air when a tensile force is applied to the belt 10 in the locking direction SR, the projection 18a is guided by means of a contact section 22 formed at the projection on a projection-oriented guide surface 21 of the locking slide 16. The guide surface 21 comprises two slopes 19a, 19b and at the slopes 19a, 19b the contact section 22 runs obliquely when a pulling force is applied to the belt 10 in the locking direction SR, wherein the first slope is at the projection 18a and the second slope is at the lateral end of the locking slider 16. As a result, air is forced out relative to the belt 10 and a minimum locking force can be followed.

If a tensile force is applied to the belt, the second spring element 24a arranged between the locking slide 16 and the pawl 18 resists the first spring element 23 with a higher spring rate but with a smaller spring travel and compresses when the locking element 23 moves in the locking direction SR. At the same time, the first spring element 23 is at the same time slightly relaxed. Because the spring force of the first spring element 23 is smaller than the spring force of the second spring element 24a, the pawl 18 can be displaced towards the first spring element 23 in order to enable the insertion of the teeth of the belt into the teeth of the pawl 18, although in a defined position of the pawl 18 between the two spring elements 18 and 24 a.

Fig. 4a and 4b show the locking device 100 interacting with the belt 10 once in the unlocked position (fig. 4 a) and once in the locked position (fig. 4 b). As is clear from a comparison of the views, when the guide means 14 provided at the running device is displaced horizontally in and against the locking direction SR, the guide runner 17 moves the locking slide 16 and thus the pawl 18 toward or away from the upper tensioning edge of the belt 10. In order to guide the guide means 14 horizontally in and against the locking direction SR, a first guide rail 15 is inserted in the housing, which is a straight line extending horizontally, in which the guide means 14 runs, and the second guide rail 17 is embodied in a curved manner, so that the locking slide 16 is moved with the pawl 18 toward the belt 10 for locking and away from the belt 10 for unlocking when the guide means 14 is displaced horizontally. If a pulling force acts on the belt 10 in the locking direction SR in the locked position of the locking slide 16, the pawl 18 also moves along the guide surface 21 in the locking direction SR by a small catch-up path (Nachsetzweg) and presses air out of the effective connection between the pawl 18 and the belt 10.

Fig. 5 shows a vertical longitudinal section of the locking device 100 in the locked position, without the belt in the belt guide space 25. The interaction of the guide grooves 15, 17 with the guide means 14 and the pawl 18 is particularly well visible. The pawl 18 preferably has an opposing face belonging to each ramp 19a, 19b in the form of a corresponding contact section 22 in a guide face 21 for the direction of travel to the ramps 19a, 19 b.

Fig. 6 shows a locking device 100 according to a second embodiment of the invention. In contrast to the first exemplary embodiment, the second spring element 24b is formed at the cover element 26 and presses the locking slide 16 in the unlocking direction. The second spring element 24b at the cover element 26 is arranged in the space between the locking slide 16 and the inner face 27 of the housing 11 facing the locking slide and acts against the first spring element 23. The locking slide 16 is configured in a ramp-free manner and the pawl 18 is preloaded against a stop at the locking slide 16 by means of the first spring element 23, wherein the preload direction acts against the force direction of the second spring element 24b, wherein, as shown, the guide 14 is displaced to the right with the travel device 13 and the locking slide 16 is placed in the locking position.

Fig. 7 shows a perspective detail view of the cover element 26. The spring element 24b is molded on the inside at the cover element 26, wherein the spring element 24b can also be provided separately at the cover element 26.

Fig. 8 shows a locking device 100 according to a second embodiment of the invention. In the exemplary embodiment, the guide rail 15 is formed with a ramp 20 in the housing 11, which is formed by the respective section a. The section a has a region rising toward the pawl 18 at the end facing the spring element 24 b. The region forms a ramp 20 on the underside which presses the guide 14 toward the pawl 18 or the upper tensioning side of the belt 10. The guide mechanism 14 here brings about the locking slide 16 in the same direction via the guide slide 17 (see above). The residual magnetism of the actuator 12 is sufficient to hold the running means 13 in the rightmost position so that the desired effect is achieved, namely that if a pulling force is applied to the belt 10 to the right in the image plane towards the ramp 20, the pawl 18 is caught up towards the belt 10, which is achieved with the spring element 24b compressed, which in turn sends back a movement if the pulling force is removed again. The embodiment described forms an alternative to the ramps 19a, 19b formed between the locking slide 16 and the pawl 18.

The invention is not limited in its embodiments to the preferred examples described above. Rather, a large number of variants are conceivable, which can be used by the illustrated solution even in essentially another type of embodiment. All the features and/or advantages which are known from the description or the drawing, together with the structural details or the spatial arrangement, can be of importance for the invention not only individually but also in various combinations. For example, the spring elements 24a, 24b may be provided in combination with each other or interchanged with each other. Instead of positive engagement with the belt form fit, a pure force flow can also be provided.

List of reference numerals

100. Locking device

10. Belt with belt body

11. Shell body

11A-11c housing parts

12. Actuator

13. Travelling device

13A travelling device element

14. Guiding mechanism

15. First guide chute

16. Locking slide block

16A guide projection

16B guide groove

17. Second guide chute

18. Pawl for a bicycle

18A bump

18B guide groove

19A, 19b slope

20. Slope

21. Guide surface

22. Contact section

23. First spring element

24A, 24b second spring element

25. Belt guide space

26. Cover element

27. Inner surface

28. Guide roller

29. Spring stop

30. Sensor holder

SR locking direction

Section A

Claims

1. A locking device (100) for fixing a belt (10) of a sliding door system, comprising a housing (11) in which an actuator (12) and a travel device (13) are accommodated, wherein the travel device (13) can be displaced in the housing (11) linearly by means of the actuator (12), and wherein at least one guide means (14) is provided at the travel device (13), which guide means is guided in a first guide slot (15) in the housing (11), and wherein a locking slide (16) is provided in the housing (11) or at the housing (11), which locking slide is movable in a direction of movement towards the belt into a locking position for locking the belt (10) and away from the belt into a release position for releasing the belt (10), for which purpose at least one second guide slot (17) is formed in the locking slide (16), in which second guide slot the guide means (14) is guided, and wherein the locking slide (16) is likewise formed for locking the belt (10) is displaceable in a direction of movement towards the belt (16) and the pawl (10) is received,

It is characterized in that the method comprises the steps of,

At least one ramp (19 a,19 b) is formed in the receptacle between the pawl (18) and the locking slide (16), by means of which ramp an additional closing path can be produced which exceeds the locking position of the pawl (18) when a tensile force is applied to the belt (10) in the locking direction (SR).

2. The locking device (100) according to claim 1,

It is characterized in that the method comprises the steps of,

The locking slide (16) has a guide surface (21) by means of which the pawl (18) is accommodated and guided at the locking slide (16) in the direction of extension of the belt (10), wherein at least one ramp (19 a,19 b) is formed in the guide surface (21).

3. The locking device (100) according to claim 2,

It is characterized in that the method comprises the steps of,

The guide surface (21) has a first slope (19 a) and a second slope (19 b) which is formed at a distance from the first slope (19 a).

4. The locking device (100) according to claim 2,

It is characterized in that the method comprises the steps of,

The pawl (18) has a mating guide surface which is formed essentially complementarily to the guide surface (21), wherein the mating guide surface has at least one contact section (22) for the at least one ramp (19 a,19 b).

5. The locking device (100) according to claim 1 or 2,

It is characterized in that the method comprises the steps of,

A first spring element (23) is arranged between the locking slide (16) and the pawl (18), said first spring element pre-stressing the pawl (18) in the locking direction (SR).

6. The locking device (100) according to claim 5,

It is characterized in that the method comprises the steps of,

A second spring element (24 a,24 b) is arranged between the locking slide (16) and the pawl (18), said second spring element pre-tensioning the pawl (18) against the locking direction (SR), wherein the spring force of the second spring element (24 a,24 b) is greater than the spring force of the first spring element (23).

7. The locking device (100) according to claim 6,

It is characterized in that the method comprises the steps of,

A cover element (26) is provided at the housing (11), at which the second spring element (24 b) is formed.

8. The locking device (100) according to claim 7,

It is characterized in that the method comprises the steps of,

The second spring element (24 b) on the cover element (26) is embodied as a spring clip which is arranged or molded on the cover element (26) and is set up in a gap between the locking slide (16) and the inner face (27) of the housing (11).

9. The locking device (100) according to claim 1 or 2,

It is characterized in that the method comprises the steps of,

The pawl (18) is made of a metallic material comprising a silicon copper zinc alloy material.

10. A locking device (100) for fixing a belt (10) of a sliding door system, comprising a housing (11) in which an actuator (12) and a travel device (13) are accommodated, wherein the travel device (13) can be displaced in the housing (11) linearly by means of the actuator (12), and wherein at least one guide means (14) is provided at the travel device (13), which guide means is guided in a first guide slot (15) in the housing (11), and wherein a locking slide (16) is provided in the housing (11) or at the housing (11), which locking slide is movable in a direction of movement towards the belt into a locking position for locking the belt (10) and away from the belt into a release position for releasing the belt (10), for which purpose at least one second guide slot (17) is formed in the locking slide (16), in which second guide slot the guide means (14) is guided, and wherein the locking slide (16) is likewise formed for locking the belt (10) is displaceable in a direction of movement towards the belt (16) and the pawl (10) is received,

It is characterized in that the method comprises the steps of,

At least one ramp (20) is formed in the first guide rail (15) as a section (A), by means of which an additional closing path can be produced beyond the locking position of the pawl (18) when a pulling force is applied to the belt (10) in a locking direction (SR).

11. The locking device (100) according to claim 10,

It is characterized in that the method comprises the steps of,

The section is connected to a position in which the guide mechanism (14) is when the locking slider (16) is in the locking position.

12. The locking device (100) according to claim 10 or 11,

It is characterized in that the method comprises the steps of,

13. The lockout device (100) of claim 12,

It is characterized in that the method comprises the steps of,

14. The locking device (100) according to claim 13,

It is characterized in that the method comprises the steps of,

15. The lockout device (100) of claim 14,

It is characterized in that the method comprises the steps of,

16. The locking device (100) according to claim 10 or 11,

It is characterized in that the method comprises the steps of,

17. A sliding door apparatus having a latch (100) according to any one of the preceding claims.

18. The sliding door apparatus of claim 17,

It is characterized in that the method comprises the steps of,

The door leaf of the sliding door device is connected to the belt (10) such that when the door leaf in the closed position is pulled out violently, a pulling force can be generated in the locking direction (SR) which is applied to the belt (10).