Sliding door system

Abstract

A sliding door system (100) comprising a sliding door (20), a door frame (30) and a latching system (40), wherein in a latched state of the latching system (40) a first bolt (51) engages an engagement recess (44) of an anchor body (10) in order to latch the sliding door (20) and a latch (46) on the anchor body (10) engages into an engagement area (47) in order to thereby prevent a rotation of the anchor body (10) about a rotation axis (13) and a lock (41) has an actuator (48) which can move the latch (46) with the anchor body (10) out of the engagement area (47) in order to bring the latching system (40) from the latched state into an open state by rotating the anchor body (10) about the rotation axis (13) in normal circumstances, characterized in that the latching system has an emergency opening function which can be operated by an emergency activation force (110) and which cancels the latching of the sliding door by a movement of the lock (41) caused by the emergency activation force, the movement direction of the lock (41) being essentially perpendicular to a surface of the first door leaf (21) and the lock (41) being movable relative to the locking element (50) to such an extent that the engagement recess (44) can be moved out of an engagement area (47) of the first bolt (51) in order to thereby enable an opening of the sliding door (20).

Description

Technical Field

[0001] The present invention relates to a sliding door system with an emergency opening system and a method for emergency opening of the sliding door system. Background Technology

[0002] A sliding door system includes a sliding door and a door frame. The sliding door is retractably supported in a wall, and the door frame ensures the necessary support and anchoring of the sliding door to the building. The sliding door is mounted between two preferably panel-like wall elements in the building wall and has at least one door leaf whose outer surface forms the visible surface of the sliding door when closed. The door leaf is mounted on a guide that is movable in both the closing and opening directions. The door leaf generally has the size of a door opening located in the associated wall element and is movable laterally to the outer surface of the wall element such that, in the closed state, the visible surface of the door leaf is aligned with the visible surface of the associated wall element. This type of door, or sliding door, is also called a panel door. Typically, such sliding doors have two door leaves mounted on the same guide, wherein, in the closed state, the outer surface of the second door leaf is also aligned with the outer surface of the wall element associated with the second door leaf. This type of sliding door, and especially the door opening, is difficult to see when closed, which is aesthetically advantageous.

[0003] A sliding door is known from DE1016306184, comprising a guide body movable horizontally between two wall shells, on which two door leaves open in opposite directions are supported. In the closed state of the sliding door, the outer surfaces of the separately opened door leaves are flush with the outer surfaces of two visible surfaces of the wall. The guide body is movable horizontally on a linear guide and can be moved by a traction drive device driven by a motor. At least one door leaf is connected to the movable guide body via rocker levers, each forming a parallelogram guide system, such that the distance between the door leaf and the guide body, measured perpendicular to the outer surface of the wall element, can be changed such that the outer surface of the door leaf, in the open state, is positioned within the wall, i.e., between the two wall elements, and in the closed state, is positioned within the door opening and aligned with the outer surface of the wall element corresponding to the door leaf.

[0004] These sliding doors serve as entrance doors, particularly useful in hotels, hotel rooms, co-working spaces, conference rooms, hospitals, wards, apartments, or offices. These doors typically separate private areas from non-private areas and are usually automatically latched or capable of being latched when closed to prevent unauthorized access to private areas. Therefore, a power outage during the closed or latched state prevents the sliding door from being unlocked or opened by the electric drive mechanism. Summary of the Invention

[0005] The purpose of this invention is to provide a sliding door system with a latching device that can open or unlock the sliding door from the side of the private space even in the absence of current, but cannot be unlocked from the non-private space.

[0006] According to a first aspect of the invention, a sliding door system achieves this objective. The sliding door system includes a sliding door, a door frame, and a latching system. The sliding door includes a first door leaf and a second door leaf, which are supported such that the distance between the first and second door leaves is less in the open state of the sliding door than in the closed state. The latching system includes a lock fixed to the sliding door and a locking member mounted on the door frame. Here, the lock has an anchor body with an engagement recess that is rotatably supported about a rotation axis, and the locking member has a first pin. In the locked state of the latching system, the first pin engages the engagement recess of the anchor body to latch the sliding door, and the latch on the anchor body engages in the engagement area to prevent the anchor body from rotating about the rotation axis. The lock has an actuator that can remove the latch from the engagement area with the anchor body so that, under normal circumstances, the latching system can be brought from a latched state to an unlocked state by rotating the anchor body about the rotation axis. The latching system has an emergency opening function, which can be operated by an emergency activation force. The emergency opening function cancels the latch of the sliding door by the movement of the lock caused by the emergency activation force, wherein the direction of movement of the lock is substantially perpendicular to the surface of the first door leaf, and the lock can move relative to the locking member to such an extent that the engagement notch can be moved out of the engagement area of ​​the first bolt, thereby allowing the sliding door to be opened.

[0007] According to a second aspect of the invention, a method for emergency opening of a sliding door system achieves this objective. The method for emergency opening of a sliding door system according to a first aspect of the invention includes the following steps:

[0008] Apply emergency activation force to the first door leaf.

[0009] Move the first door leaf to reduce the distance between the first door leaf and the second door leaf, and simultaneously guide the lock between the first door leaf and the second door leaf so that the first door leaf and the lock move in approximately the same direction.

[0010] The latching system is opened in an emergency by passing the first pin through the engagement notch of the anchor body.

[0011] The sliding door includes a first door leaf and a second door leaf, which are mounted such that the distance between the first and second door leaves can be reduced to open the sliding door. When the sliding door is closed, the distance increases again, so the outer surfaces of both door leaves are generally flush with the surface of the wall. Therefore, at least one of the two door leaves is generally flush with the wall surface on its respective wall side. Preferably, the two door leaves are arranged flush with their respective wall sides.

[0012] Preferably, the distance between the first and second door panels is defined as the distance between the flat outer surfaces of the two door panels. Here, the door panels are preferably placed flush with the wall surface of the door panel. Preferably, the two door panels are arranged flush with their respective wall sides.

[0013] Here, the door frame is anchored to the building structure. The door frame houses the guide rails and locking mechanism. Once the latch system is unlocked, the sliding door can be opened.

[0014] The axis of rotation of the anchor is preferably vertically extended. This eliminates the possibility of a specific orientation of the lock on the locking element. Typically, sliding doors are height-adjustable. This allows the lock's position to move relative to the locking element. The orientation of the anchor's axis of rotation allows for height adjustment without subsequent adjustment of the locking element or lock, because not only can the lock be precisely positioned horizontally relative to the sliding door, but the locking element can also be precisely positioned horizontally within the door frame. In the vertical direction, the latching system allows for clearance. The sliding door system is preferably installed in an orientation such that it can be passed through horizontally. The door panels are oriented vertically. The direction of movement of both door panels from the open to the closed state is substantially horizontal.

[0015] Emergency activation force should be understood as the force applied by a person to the first door leaf. In an emergency, a person typically attempts to reach the outside from the inside of a sliding door. To do this, the person presses the door leaf directly. The force acting on the door leaf can be understood as the emergency activation force. This force can be converted and transmitted, ultimately causing the sliding door to unlock through a mechanical chain of action. An emergency might be caused by a power outage in the building. However, fire or other threats could also cause a person to want to open the sliding door.

[0016] By applying an emergency activation force to the first door leaf, which is normally located on the inside or private side of the door, the first door leaf, which was flush with the inner wall surface before the emergency activation force was applied, is slightly pushed into the wall. This displacement is at least partially transmitted to the lock via the internal structure of the sliding door. This transmission is achieved, for example, through a parallelogram guide system and guide body. The second door leaf of the sliding door remains stationary. Because the second door leaf is stationary, but the first door leaf has been moved by the emergency activation force, the distance between the first and second door leaves is reduced by the emergency activation force.

[0017] The possible features and advantages of embodiments of the present invention may be considered based on the concepts and understanding described below, including but not limited to the present invention.

[0018] According to a preferred embodiment of the sliding door system, the emergency activation force is applied directly to the first door leaf of the sliding door system.

[0019] In other words, the anchor plate is thus arranged such that emergency opening is achieved only by applying an emergency activation force to the first door leaf, and the sliding door is unlocked. Specifically, applying a force corresponding to the emergency activation force to the second door leaf with the same magnitude but in the opposite direction does not cause the sliding door to unlock. Therefore, the sliding door cannot be opened by pressing the second door leaf. This is achieved by arranging the engagement notch of the anchor plate substantially on the side of the first door leaf. Advantageously, the first door leaf is arranged on the side of the sliding door from which emergency opening of the sliding door is required. Specifically, the first door leaf is arranged on the private side of the sliding door. The second door leaf is preferably installed on the side of the sliding door from which emergency opening of the sliding door is not permitted. Specifically, the second door leaf is located on the public, accessible, non-private side of the sliding door.

[0020] Here, the emergency activation force is applied directly to the first door leaf. No other components, such as a door latch or emergency unlock lever, are operated; instead, the emergency activation force is applied directly to the surface of the first door leaf.

[0021] The advantage is that even if the actuator fails to unlock the latch system (e.g., due to a power outage), people inside the residence or office can still leave the area. Because emergency opening also functions without damage, it can be used in life-threatening emergencies, such as in a fire. However, emergency opening can also be used if the door should be opened in the event of a power outage or when the door drive malfunctions.

[0022] According to a preferred embodiment, the emergency activation force can be applied vertically to the first door leaf of the sliding door system.

[0023] This means that the emergency activation force can be applied substantially vertically to the first door leaf. Therefore, advantageously, people can simply push against the first door leaf, thereby causing the door to open urgently. In particular, it is important that the emergency opening of sliding doors can be intuitively and quickly manipulated during life-threatening emergency evacuations of multiple people. Advantageously, pushing against the first door leaf is intuitively the first attempt by evacuees to open the door.

[0024] Furthermore, this solution is aesthetically pleasing because it eliminates the need to install an emergency open button or handle on or inside the door.

[0025] According to a preferred embodiment, the lock and locking element are designed such that reverse movement of the lock in the opposite direction of movement is blocked, and if a pressure of the same value as the emergency activation force is applied to the second door leaf, then the second door leaf remains jammed and the sliding door remains locked.

[0026] Here, the direction of movement describes the direction of movement of the lock, which is achieved by an emergency activation force.

[0027] In other words, therefore, emergency opening cannot be caused by applying a force equal to the emergency activation force to the second door leaf, i.e., from the non-private side of the sliding door. The position of the lock relative to the locking element is restricted on one side when the sliding door is closed. That is, as described above, relative movement of the lock in the direction toward the second door leaf causes emergency opening of the sliding door, while relative movement of the lock in the direction toward the first door leaf is prevented. This unilateral restriction of the relative position is structurally preferably achieved by a stop surface on the lock and the locking element.

[0028] If a pressure greater than the emergency activation force is applied to the second door leaf, the sliding door also remains latched. Here, the pressure can be of any magnitude, as long as it is less than the strength of the sliding door system.

[0029] According to a preferred embodiment, the anchor body is constructed in a plate-like shape.

[0030] Therefore, the anchor plate can be manufactured very simply and cost-effectively from a plate-shaped workpiece. Preferably, the anchor plate is formed by stamping, laser cutting, milling, waterjet cutting, or etching of a plate-shaped metal part or strip. Alternatively, the anchor plate can be pressed, forged, or cast.

[0031] According to a preferred embodiment, the anchor body is designed to be substantially circular, and the outer region of the anchor body has a substantially fan-shaped cutout, with engagement areas and engagement notches formed particularly at the two ends of the cutout.

[0032] This design allows the required functions of the anchoring components to be achieved with a very simple geometry. Furthermore, the circular profile of the anchor plate makes it easy to center the pin within the locking mechanism.

[0033] According to a preferred embodiment, the anchor is fixed to the lock such that rotation about the axis of rotation is restricted by two stops in such a way that the latching system keeps the door closed at the first stop, and the anchor can pass through the pin at the second stop.

[0034] Therefore, these two stops define the extreme positions that the anchor body must reach. Rotation of the anchor body is limited between these two stops. Further rotation of the anchor body beyond these extreme positions, i.e., beyond the first or second stop position, is neither necessary nor advantageous.

[0035] According to a preferred embodiment, the anchor body is connected to the lock by a spring, such that the spring applies a preload force to the anchor body, which presses the anchor body against the first stop.

[0036] Therefore, the anchor body almost always rests against the first stop. Thus, once installed, the latch can engage in the engagement area. When the sliding door is closed, the anchor body also remains in the defined position. Therefore, the first bolt can always be pushed back precisely. After passing through the engagement notch, the sliding door is reliably latched because the engagement notch is in the correct position to engage or mesh with the first bolt, thus ensuring reliable door latching.

[0037] According to a preferred embodiment, the actuator is implemented as an electrically driven device.

[0038] The electric drive unit can be easily controlled electronically. Preferably, the electric drive unit is a lifting magnet. Preferably, the electric drive unit is directly connected to the latch on a common axis of action.

[0039] According to a preferred embodiment, the guide body, on which the lock is fixed, is supported, in particular, by a parallelogram guide system, such that the guide body is always located in the middle between the first door leaf and the second door leaf.

[0040] This achieves a symmetrical structure for the sliding door system. Due to the symmetrical structure, the parts used are more uniform. In particular, the parallelogram guide system, door frame, or general construction (from which the sliding door system is manufactured) is more consistent through symmetrical construction. Therefore, production costs are lower.

[0041] According to a preferred embodiment, the locking member has a second pin opposite to the first pin, wherein the locking member can be inserted between the first pin and the second pin.

[0042] The second bolt ensures engagement between the first bolt and the anchor body in the latched state. The preload of the second bolt's bolt spring limits the magnitude of the emergency activation force required to open the sliding door. Typically, the emergency activation force applied to the first door leaf is significantly greater than the preload of the bolt spring. The second bolt moves against the preload of the bolt spring, causing the engagement notch of the anchor body to move out of the engagement area of ​​the first bolt, thereby unlocking the sliding door.

[0043] The second bolt can have the same construction as the first bolt. This achieves symmetrical centering when the lock is inserted into the lock body. Furthermore, the same type of bolt can be installed on both sides of the locking element.

[0044] Alternatively, the second latch can be optimized such that the emergency activation force to be applied matches the force that a person can apply. Therefore, for the second latch, a stronger latch spring than the first latch can be used to keep the sliding door reliably latched under other operating conditions. The first latch spring has lower stiffness in this case, so that it only resists the anchor body too strongly when locked. This facilitates latching.

[0045] According to the preferred method, emergency opening includes the following steps:

[0046] The second latch is pushed by the lock due to the movement of the lock caused by the emergency activation force.

[0047] The second latch allows a defined force to be used as an emergency activation force. The stronger the latch spring preloads the second latch, the more force a person must press against the first door leaf to open the sliding door.

[0048] According to the preferred method, in the first stage of reducing the distance between the first and second door panels, the second door panel is essentially stationary before the sliding door is unlocked.

[0049] In the first stage of reducing the distance between the first and second door panels, the first door panel moves only a few millimeters, typically less than 5mm, before the sliding door unlocks. After this first stage, that is, after the door unlocks, the distance between the two door panels is further reduced, and then the sliding door moves substantially horizontally and into the open position. During the movement to the open position, the second door panel also moves.

[0050] By flipping the lock, the direction of emergency opening can be changed, that is, the side of the sliding door that can be operated for emergency opening. The lock is secured to the guide body by one or more fasteners (such as screws). To flip the lock, loosen the fasteners. The lock is removed from the guide body or from its bracket in the direction of movement of the sliding door. Then, rotate the lock 180° so that the engagement notch is repositioned on the other side of the sliding door. The lock is then pushed back into the guide body or its bracket and secured.

[0051] The lock can only be flipped when the sliding door is open. This ensures that emergency opening can only be performed by personnel who can bring the sliding door to the open position. Furthermore, unauthorized flipping can be prevented by other safety devices, such as the lock cylinder. The locking element can be flipped like a lock. Loosen the fasteners on the locking element to the door frame, remove the locking element, flip it, push it back in, and secure it again. The locking element is flipped only if the first and second pin springs are designed with different stiffnesses. If the first and second pin springs are the same, flipping is not necessary. Attached Figure Description

[0052] Other advantages, features, and details of the invention will become apparent from the following description of embodiments and from the accompanying drawings, in which the same or functionally identical elements are given the same reference numerals. The drawings are schematic only and are not drawn to scale.

[0053] Here:

[0054] Figure 1 Showing a sliding door system;

[0055] Figure 2 A cross-section of the sliding door system is shown;

[0056] Figure 3 shows the sliding door system closed;

[0057] Figure 4 shows the normal unlocking of the sliding door system;

[0058] Figure 5 illustrates the emergency unlocking of the orbital system, and

[0059] Figure 6 Details of the anchor are shown. Detailed Implementation

[0060] Figure 1 A sliding door system 100 is shown. A parallelogram guide system 23 is mounted on the guide body 24 of the sliding door 20. A [missing information - likely a device or component] is mounted on this parallelogram guide system. Figure 1 The door panels are not shown. The sliding door 20 is movably supported so that it can move from an open state to a closed state and vice versa. In the closed state, the door panels are spaced apart from each other such that they terminate flush with the wall in which the sliding door 20 is embedded. In the open state, the door panels have a smaller distance than in the closed state, allowing the sliding door to move into the wall. Furthermore, the sliding door has a door frame 30 that is securely connected to the wall.

[0061] In order to keep the sliding door 20 in the closed position, the sliding door system 100 has a latching system 40. The latching system consists of a lock 41 fixed to the sliding door and a locking element 50 fixed to the door frame 30.

[0062] Figure 2 Shown in horizontal cross section Figure 1 The sliding door system. The sliding door system is shown in the latched state.

[0063] Apart from Figure 1 In addition, Figure 2 The first door leaf 21 and the second door leaf 22 are shown. Here, the first door leaf 21 is the inner door leaf, that is, usually in a residence or office, while the second door leaf 22 is usually the outer door leaf, that is, from the outside facing the corridor in front of the office or residence.

[0064] If a person presses down on the second door leaf 16 and applies a force corresponding to the emergency activation force (110), the second door leaf moves only very slightly. The guide moves exactly halfway due to the symmetrical parallelogram guide system. This movement is stopped by the anchor 10 resting against the locking member 50. The first bolt 51 will be slightly compressed here. The sliding door 20 is latched because the engaging notch 44 is firmly engaged, for example, meshed with the first bolt 51. However, the door cannot be pushed in, because the lock is reliably supported in the locking member 50. In the upper region of the sliding door 20, the sliding door is supported by a guide rail. Therefore, the door is reliably protected against intrusion.

[0065] Figure 3 shows the closing process of the sliding door 20. Figure 3a The state before closing is shown. The anchor body is pressed against the bolt 17 by a spring (not shown) at the first stop 15. When the door is open, the anchor body 10 is therefore in the orientation shown. Figure 3b The first contact portion between the anchor body 10 and the first pin 51 is shown. Even if a large frictional force occurs at this contact portion, the anchor body 10 cannot continue to rotate because the anchor body is already positioned on the first stop. Figure 3c In the middle, the first pin 51 is once again engaged behind the anchor body, and the sliding door 20 is reliably latched.

[0066] Figure 4 shows the normal unlocking of the sliding door 20. A spring (not shown) still presses the first stop 15 of the anchor 10 against the bolt 17. Here, the spring force is chosen to be large enough that the structure remains intact even if a pulling force acts on the guide when the sliding door is closed. This pulling force can be caused, for example, by the pressure of the seal on the door leaf. In the described configuration, there is a small gap, or clearance, between the locking pin 46 and the engagement area 47. When the pulling force is large, this gap will be eliminated, and the latch 46 will hold the door locked by firmly engaging or engaging the first bolt 51 through the engagement notch 44. However, if no large pulling force is applied, the latch 46 can be removed from the engagement area 47 with very little force. Now, the anchor can be rotated by the pulling force, and the sliding door can be opened.

[0067] Figure 5 illustrates the method of emergency opening. Emergency opening is typically required to allow people to escape from a room, office, or residence. However, it may also be necessary in cases such as actuator failure or simply a power outage. For this purpose, as soon as a person reaches the door, they push the door leaf in front of them. This applies an emergency activation force to the first door leaf 21. The parallelogram guide system 23 further transmits the emergency activation force to the guide body 25. This guide body 25 is guided above by a guide rail and below by a guide member against the latching system. The guide body is slightly elastic, allowing it to deform slightly and thus move. This pushes back the second pin and disengages the engagement or contact between the first pin and the engagement notch 44, as... Figure 5b As shown. Because the sliding door 20 is no longer latched, the guide body 25 and the entire sliding door 20 can move along the guide rail, and thus the sliding door can be opened.

[0068] Unauthorized persons attempting to enter the private area may only access the outer, non-private door. The non-private door is typically the second door, 52. Therefore, the sliding door cannot be opened. Pushing against the second door causes the guide 25 to move to its maximum extent until it rests against the outer edge of the engagement recess 44 next to the first latch 51. Pulling the second door 22, for example, by means of a vacuum lifter, only further pulls the second door into the door frame 30. The second door 22 rests against the door frame and subsequently only compresses the seal (not shown).

[0069] Figure 6 An isometric view of the most important component is shown, particularly the anchor 10 with its axis of rotation 13. The first stop 15 and the second stop 16 are implemented as the ends of milled grooves, in which the stud 17 is fixed. Here, the spring 18 tensions the anchor to a position in which the stud 17 rests against the first stop 15. The latch 46 can be operated by the actuator 49.

[0070] Finally, it should be noted that concepts such as "having" or "comprising" do not exclude other elements or steps, and concepts such as "an" or "a" do not exclude multiple. Furthermore, it should be pointed out that the features or steps described with reference to one of the above embodiments can also be used in combination with other features or steps of the other embodiments described above. Reference numerals in the claims should not be considered limiting.

Claims

1. A sliding door system (100) having a sliding door (20), a door frame (30) and a latching system (40). The sliding door (20) includes a first door leaf (21) and a second door leaf (22), which are supported in such a way that the distance between the first door leaf (21) and the second door leaf (22) is less than the distance between them when the sliding door (20) is closed. The latching system (40) includes: A lock (41) fixed to the sliding door (20) and a locking element (50) assembled on the door frame (30), wherein, The lock (41) has an anchor (10) with a mating notch (44) supported in a manner that allows it to rotate about a rotation axis (13), and The locking element (50) has a first pin (51). In the latched state of the latching system (40), a first pin (51) engages in the engagement recess (44) of the anchor (10) to latch the sliding door (20), and a latch (46) engages in the engagement area (47) of the anchor (10) to prevent the anchor (10) from rotating about the rotation axis (13). The lock (41) has an actuator (48) capable of removing the latch (46) from the engagement area (47) with the anchor (10) so that the latching system (40) can normally be switched from the latched state to the unlocked state by rotating the anchor (10) about the rotation axis (13). The latching system has an emergency opening function that can be operated by an emergency activation force (110), and the emergency opening function cancels the latch of the sliding door by movement of the lock (41) caused by the emergency activation force, wherein the direction of movement of the lock (41) is substantially perpendicular to the surface of the first door leaf (21), and the lock (41) is movable relative to the locking member (50) to such an extent that the engagement notch (44) can be displaced from the first bolt (51) so that the sliding door (20) can be opened.

2. The sliding door system (100) according to claim 1, characterized in that, The emergency activation force (110) is designed to be applied directly to the first door leaf (21) of the sliding door system (100).

3. The sliding door system (100) according to claim 2, characterized in that, The emergency activation force (110) is designed to be applied vertically to the first door leaf (21) of the sliding door system (100).

4. The sliding door system (100) according to any one of claims 1-3, characterized in that, The lock (41) and the locking element (50) are configured such that the lock (41) is prevented from moving in the opposite direction of the movement, and the second door leaf (22) remains stationary, and the sliding door remains latched when a pressure with the same value as the emergency activation force (110) is applied to the second door leaf (22).

5. The sliding door system (100) according to any one of claims 1-3, characterized in that, The anchor (10) is designed in the form of a plate.

6. The sliding door system (100) according to any one of claims 1-3, characterized in that, The anchor (10) is substantially circular in shape, and the outer region of the anchor (10) has a substantially fan-shaped cutout, the two ends of which form the engagement region (47) and the engagement notch (44).

7. The sliding door system (100) according to any one of claims 1-3, characterized in that, The anchor (10) is fixed to the lock (41) in such a way that rotation about the axis of rotation (13) is defined by a first stop (15) and a second stop (16) in such a way that the latching system (40) keeps the sliding door (20) closed at the first stop (15), and the anchor (10) can pass through the first pin at the second stop (16).

8. The sliding door system (100) according to claim 7, characterized in that, The anchor (10) is connected to the lock (41) via a spring (18), such that the spring (18) applies a preload force to the anchor (10), which presses the anchor (10) against the first stop (15).

9. The sliding door system (100) according to any one of claims 1-3, characterized in that, The actuator (48) is designed as an electrically driven device.

10. The sliding door system (100) according to any one of claims 1-3, characterized in that, The locking member (50) has a second pin (52) opposite to the first pin (51), wherein the lock (41) can be inserted between the first pin (51) and the second pin (52).

11. The sliding door system (100) according to any one of claims 1-3, characterized in that, The guide (24) with a lock (41) fixed thereon is supported in such a way that the guide (24) is always located in the middle between the first door leaf (21) and the second door leaf (22).

12. The sliding door system (100) according to claim 11, characterized in that, The guide body (24) is supported by a parallelogram guide system.

13. A method for emergency opening of a sliding door system (100), said sliding door system (100) being a sliding door system according to any one of the preceding claims, the method comprising the following steps: The emergency activation force (110) is applied as a pushing force to the first door leaf (21). Move the first door leaf to reduce the distance between the first door leaf (21) and the second door leaf (22), and The lock (41) is guided simultaneously between the first door leaf (21) and the second door leaf (22) so that the first door leaf (21) and the lock (41) move in essentially the same direction; The latch system (40) is opened in an emergency by passing the first pin (51) through the engagement notch (44) of the anchor (10).

14. The method for emergency opening of a sliding door system (100) according to claim 13, characterized in that, The emergency opening process includes the following steps: Based on the movement of the lock (41) caused by the emergency activation force (110), the second latch (52) is pushed by the lock (41).

15. The method for emergency opening of a sliding door system (100) according to claim 13 or 14, characterized in that, In the first phase of reducing the distance between the first door leaf (21) and the second door leaf (22), the second door leaf is essentially stationary before the sliding door (20) is unlocked.

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