Building sliding-door system with operating device for interior opening

Abstract

A building sliding-door system (100) has a sliding door (20), a locking system (40) and an operating device (50) which is arranged on a door leaf (21, 22) of the sliding door (20) in a manner accessible to a person. The operating device (50) has a detection device (56) and a movably mounted and pretensioned operating panel (54) which can be moved in the direction of the door leaf (21, 22) when a force is applied by the person. The operating device (50) is connected to the locking system (40) via a force transmission device (53) and to the control device (51) via a first control line (48). In a first active state of the operating device (50), the detection device (56) generates an electric control signal in the event of a first application of force (F1) onto the operating panel (54), wherein when the control signal is received via the first control line (48) the control device (51) sends an unlocking signal to the locking system (40) via a second control line (52). In the second active state, in the event of an application of force (F2) onto the operating panel (54) which is greater than a defined normal force, the operating panel (54) exerts a force on the force transmission device (53), as a result of which the locking system (40) can be unlocked.

Description

[0001] Building sliding door system with operating device for inward opening

[0002] The technology described here generally relates to a sliding door system for a building. Embodiments of the technology particularly relate to a building sliding door system with an operating device for opening the door, for example, from an interior.

[0003] Doors for buildings can be designed in a variety of ways to grant or deny people access to a building and / or a restricted-access zone within the building. For example, WO 2020 / 126483 A1 describes a sliding door system in which a sliding door can be moved within a frame structure between a closed position and an open position. In the closed position, the sliding door is flush with the surrounding wall, and in the open position, a recess in the wall at least partially accommodates the sliding door. In order to open the sliding door from the outside, e.g., from a public area (exterior), and gain access to a non-public (private) area (interior), a valid authorization must be presented.

[0004] In addition to this safety aspect, it must be ensured that both doors in general and such a sliding door can be opened from the inside, i.e. from the interior, in an emergency (e.g. in the event of a fire or power failure). For this purpose, it is known, for example, for doors to be equipped with a device for emergency unlocking from the interior, so that the door can then be opened manually by a person. Due to the horizontal displaceability of a sliding door, as disclosed, for example, in WO 2020 / 126483 A1, known emergency unlocking devices are not applicable there, or only to a limited extent, or do not meet all the requirements that may exist for a sliding door. In addition, unlike a pivoting door, the opening direction of a sliding door may not be recognizable; particularly in an emergency, it may not be intuitive for a person how to open it.There is therefore a need for a technology for an emergency opening function of a building sliding door system that is both reliable and user-friendly.

[0005] One aspect of such technology relates to a building sliding door system comprising a frame structure having a passage area and a wall shell area, and a sliding door slidable within the frame structure between a closed position and an open position along a sliding axis. The wall shell area at least partially accommodates the sliding door in the open position, and a door leaf of the sliding door extends substantially parallel to the sliding axis. The building sliding door system has an electromechanical drive unit and a control device configured to move the sliding door. A locking system and an operating device are also provided. The locking system has a lock attached to the sliding door and a striker mounted on the door frame.The operating device is arranged on the door leaf so that it is accessible to a person and has a surface, a detection device, and a movably mounted operating panel. The operating panel occupies a first part of the surface and, when a force is exerted by the person substantially in the direction of the force, is movable substantially in the direction of the force. The operating device is connected to the locking system via a force transmission device and to the control device via a first control line. The operating device has an inactive state, a first active state, and a second active state. In the first active state, an electrical control signal can be generated by the detection device, wherein the detection device is designed to detect operation of the operating panel by the person.The control device is configured to send an unlocking signal to the locking system via a second control line upon receipt of the control signal via the first control line. In the second active state, upon a second force acting on the control panel that is greater than a specified normal force, the control panel exerts a force on the force transmission device, thereby unlocking the locking system.

[0006] According to the technology described here, the operating device of the building sliding door system is used to open the sliding door from an interior space, both in normal operation and in emergency operation. The interior space can be, for example, an apartment, a room, or another space in a building that people want to separate from a public area by means of a sliding door that can be locked from the inside. In normal operation, the sliding door is automatically opened by the electromechanical drive unit when the person, for example, presses a finger on the operating panel or approaches it (in the case of contactless operation). The same operating device is also used to open the sliding door in emergency operation (e.g. in the event of a power failure or a malfunction of the drive unit and / or the control device). If the person wants to open the sliding door and presses the operating panel in the usual way, but, for example, hasIf the user doesn't notice a power outage, the sliding door won't open. In such a case, the user can press harder on the control panel to unlock and manually open the sliding door, without having to reach around or operate a separate emergency opening device, which may require searching for and finding the right one. The control device thus combines several functions, resulting in an improved and more user-friendly emergency opening function for the building's sliding door system.

[0007] With regard to the design of the detection device, several options exist so that the operating device can be adapted to a building; for example, in a building, emphasis may be placed on contactless operation. In one embodiment applicable in conjunction with one of the embodiments disclosed in this description, the detection device has an electrical sensor connected to the first control line and configured to detect the approach of a finger to the control panel and generate the electrical control signal, wherein the operating device is in the first active state. The sensor can be a capacitive sensor or an optical sensor.In another embodiment, applicable in conjunction with any of the embodiments disclosed in this description, the detection device has an electrical pushbutton switch connected to the first control line and having an open and a closed state. The control panel and the electrical pushbutton switch are arranged such that, upon exertion of a first force that is smaller than the specified normal force, the control panel acts on the electrical pushbutton switch and brings it into the closed state, with the control device in the first active state. Such a pushbutton switch can provide the person with haptic feedback.

[0008] In one embodiment applicable in conjunction with one of the embodiments disclosed in this description, the operating device has a lever mechanism connected to the force transmission device. The operating panel is configured to act upon a force acting on the lever mechanism, and the lever mechanism is configured to act upon the force transmission device. In one embodiment, the lever mechanism is configured to exert a second force on the force transmission device upon a second force acting that is greater than the specified normal force, thereby unlocking the locking system. With such a lever mechanism, the force exerted by the person can be efficiently transmitted to the locking system by means of the force transmission device.

[0009] There are also several options regarding the design of the control panel. In one embodiment, which can be used in conjunction with one of the embodiments disclosed in this description, the control device has a rotation axis that connects the control panel to a second part of the surface. Upon application of force, the control panel can be rotated about the rotation axis and pivoted into a pivoting space of the control device. A pivotable or tiltable control panel is structurally simple and reliable; it can be particularly suitable for a rectangular design of the control device.

[0010] In one embodiment, the second part of the surface is a housing part of the operating device. The first part of the surface, for example, occupies the entire surface of the operating device that is perceptible to the person. In another embodiment, the second part represents a continuation of the first part of the surface. From the person's perspective, the operating device thus has a surface consisting of two parts that lie essentially in one plane.

[0011] In another embodiment, which can be used in conjunction with one of the embodiments disclosed in this description, the control panel is designed as a push button that can be moved substantially perpendicular to the surface when a force is applied. Such a push button can, for example, have a linear bearing and be rectangular or circular in shape.

[0012] In one embodiment applicable in conjunction with one of the embodiments disclosed in this description, the control panel and the pivoting space are configured such that, in the second active state of the operating device, a handle recess is created, by means of which the sliding door can be moved by the person. After the person has pressed the control panel to unlock the sliding door, they can use the resulting handle recess to manually open the sliding door with a lateral force. Therefore, no additional handle is required for this purpose.

[0013] In one embodiment applicable in conjunction with one of the embodiments disclosed in this description, the lock has an electrically controllable actuator that has a dual function. For a first function, it is connected to the control device via a second control line and, upon activation by the control device, is configured to exert a first tensile or compressive force to unlock the lock. For a second function, the actuator is also connected to the force transmission device. The lock and the actuator are configured to unlock the lock upon a tensile or compressive force exerted on the actuator by the force transmission device.

[0014] In one embodiment applicable in conjunction with one of the embodiments disclosed in this description, the power transmission device comprises a Bowden cable. A Bowden cable can be flexibly routed within the free space of the sliding door.

[0015] In one embodiment applicable in conjunction with one of the embodiments disclosed in this description, the door leaf is constructed in one piece, for example, it is a panel made of wood, plaster or gypsum fiber, glass, plastic, metal, or a combination of these materials, wherein the panel is designed with regard to strength, durability, and other properties specified for doors. In another embodiment, the door leaf comprises an inner door leaf and an outer door leaf separated from the inner door leaf by a free space, wherein the operating device is arranged on the inner door leaf so that it is accessible to the person from the interior.

[0016] The above and the embodiments, features, and elements mentioned in this description may be combined in various combinations without limitation, unless expressly stated otherwise. These embodiments, features, and elements, as well as their operation and applications, will become more apparent in light of the following description and the accompanying drawings. It is to be understood, however, that the following description and drawings are intended to be exemplary and not restrictive.

[0017] Various aspects of the improved technology are explained in more detail below using exemplary embodiments in conjunction with the figures. In the figures, like elements have like reference numerals. They show:

[0018] Fig. 1 is a schematic representation of an exemplary building sliding door system;

[0019] Fig. 2 is a schematic representation of a locking system of the building sliding door system;

[0020] Fig. 3 is a schematic representation of the locking system in a horizontal section;

[0021] Fig. 4A-4D are schematic representations of an inside operating device of the building sliding door system;

[0022] Fig. 5 is a schematic representation of the building sliding door system in a closed state; and

[0023] Fig. 6 is a schematic representation of the building sliding door system in an open state.

[0024] Fig. 1 is a schematic perspective view of an exemplary building sliding door system 100 for separating a first building zone from a second building zone. In one embodiment, the building sliding door system 100 can be part of an interior building wall. For example, in an apartment building, it can separate the private interior of an apartment from a (non-private) exterior area (e.g., hallway or stairwell). Analogously, the building sliding door system 100 can be used, for example, in an interior building wall in an office building, hotel, or the like. In a hotel, the building sliding door system 100 can, for example, separate two adjacent rooms. In another embodiment, the building sliding door system 100 can be part of an exterior building wall. For example, it can separate the interior of a non-public building (e.g., a residential building, hotel, commercial building, or the like) from the public exterior area (e.g.,a street or public square).

[0025] The illustrated building sliding door system 100 comprises a sliding door 20 and a frame structure 30. The frame structure 30 has a passage area 2 and a wall shell area 4. The sliding door has at least one door leaf; it can be constructed in one piece, for example, the door leaf is a panel made of wood, gypsum or gypsum fiber, glass, plastic, metal, or a combination of these materials, wherein the panel is designed with regard to strength, durability, and other properties specified for doors. In another exemplary embodiment, the door leaf comprises an inner door leaf 22 and an outer door leaf 21 separated from the inner door leaf 22 by a free space. In this embodiment with the two door leaves 21, 22, the sliding door 20 is also designed to meet the aforementioned properties with regard to strength, durability, and other properties specified for doors. These properties are known to those skilled in the art.The following is a description of the building sliding door system 100 for the design with the two door leaves 21, 22, but without being limited thereto.

[0026] In the exemplary building sliding door system 100, a parallelogram guide system 23 is attached to a guide body 24 of the sliding door 20. Door leaves 21, 22 (not shown in Fig. 1) are attached to this parallelogram guide system 23; an inner door leaf 22 is accessible from the interior (e.g., apartment), and an outer door leaf 21 is accessible from the exterior (e.g., hallway).

[0027] The sliding door 20 is mounted for sliding movement between an open and a closed state. In the closed state, the door leaves 21, 22 are spaced apart so that they are essentially flush with a building wall into which the building sliding door system 100 is installed. In the open state, the door leaves 21, 22 are spaced closer together than in the closed state, so that the sliding door 20 can be retracted into the wall shell area 4.

[0028] The building sliding door system 100 also has an electromechanical drive unit 6 and a control device 51, which are designed to move the sliding door 20 within the frame structure 30. The drive unit 6 and the control device 51 are communicatively connected to one another for this purpose. In order to keep the sliding door 20 in a closed state, the building sliding door system 100 has a locking system 40, which is shown in Fig. 2 and Fig. 3. Fig. 3 shows a schematic representation of the locking system 40 in a horizontal section. The locking system 40 consists of a lock 41, which is attached to the sliding door 20, and a locking part 42, which is attached to the frame structure 30. In the embodiment of Fig. 1, the locking system 40 is arranged on the left in the lower part of the building sliding door system 100.

[0029] The building sliding door system 100 also has an operating device 50, which is arranged on the inner door leaf 22 so that it is accessible to a person and can be operated from the interior, in particular to open the sliding door 20. The operating device 50 has a surface 10, which in one embodiment lies substantially in or parallel to a plane of the inner door leaf 22. Depending on the design of the operating device 50 and its arrangement on the sliding door 20, in one embodiment the surface 10 of the operating device 50 can protrude from the plane of the inner door leaf 22; in another embodiment the surface 10 of the operating device 50 can be recessed relative to the plane of the inner door leaf 22. The operating device 50 is connected to the locking system 40 via a force transmission device 53 and to the control device 51 via a first electrical control line 48.The force transmission device 53 can be designed to transmit a compressive force, a tensile force, or both compressive and tensile forces. In one embodiment, the force transmission device 53 comprises a Bowden cable. Those skilled in the art will recognize that the force transmission function can be implemented in another embodiment by means of a pneumatic or hydraulic device, a rod assembly, or a combination of a cable and a pulley. The force transmission function can also be implemented, for example, with a battery-buffered electromechanical system (including a pneumatic or hydraulic device). The following description refers to a Bowden cable 53. Fig. 2 and Fig. 3 schematically show that the Bowden cable 53 and a second electrical control line 52 are connected to the locking system 40, which can thereby be controlled electrically and mechanically. Fig. 4A - Fig.4D show schematic representations of an embodiment of the operating device 50. Fig. 4A shows a front side of the operating device 50, which can be arranged on the inner door leaf 22. If the operating device 50 is arranged on the inner door leaf 22, the front side, viewed from the interior, has an elongated shape that is longer than it is wide (i.e., it is rectangular), which extends substantially vertically, and which has a plurality of edges or sides, which can be referred to using terms such as, for example, top, bottom, left, right, or the like. Those skilled in the art will recognize that the front side of the operating device 50 can also have a different shape, e.g., oval, round, square, or a combination of these shapes.

[0030] The operating device 50 can be arranged on the inner door leaf 22 by placing it on the inner door leaf 22 and routing the Bowden cable 53 and the control line 48 through a bushing into a free space in the sliding door 20. In this case, the operating device 50 has a housing 50a that can be mounted on the inner door leaf 22. The dimensions of the housing 50a and / or the wall shell area 4 are selected such that the sliding door 20 can retract into the wall shell area 4 far enough that the operating device 50 is also located entirely or partially in the wall shell area 4.

[0031] The arrangement of the operating device 50 on the inner door leaf 22 can also be achieved by inserting it into the inner door leaf 22; this can be done with or without a housing. The Bowden cable 53 and the control line 48 then also run in the free space of the sliding door 20. The following description is given by way of example for an operating device 50 that can be inserted into the inner door leaf 22 and has a housing 50a. In this exemplary embodiment, the surface 10 of the operating device 50 lies essentially in the plane of the inner door leaf 22.

[0032] The front of the operating device 50 comprises the surface 10, which in the illustrated embodiment is divided into two parts: a movably mounted operating panel 54 occupies an upper, first part, and a substantially rigid cover 55 occupies a lower, second part. In one exemplary embodiment, the operating panel 54 is preloaded, for example by a spring. Without being limited thereto, in the illustrated division, the cover 55 is larger than the operating panel 54. Those skilled in the art will recognize that such a division is optional and that the operating panel 54 can occupy substantially the entire surface 10. In one exemplary embodiment, the second part of the surface 10 can be a housing part (55) of the operating device 50, wherein the first part of the surface, for example, occupies the entire surface 10 of the operating device 50 that is perceptible to the person.In another embodiment, the second part represents a continuation of the first part of the surface 10, as shown by way of example in Fig. 1 and Fig. 4a. From the perspective of the person, the operating device 50 thus has a surface 10 consisting of two parts that lie essentially in one plane.

[0033] In the illustrated embodiment, the operating panel 54 has a marking 57, which can be designed in various ways. In one embodiment, the marking 57 can comprise a pattern that stands out from the surface 10 in order to be tactile; similar to Braille, a person with limited vision can, for example, orient themselves using the marking 57 and recognize where the operating panel 54 is to be operated. Additionally or alternatively, the marking 57 can be illuminated, e.g., by a light source arranged in the operating device 50, which, for example, indicates the status of the building sliding door system 100 (e.g., by colored light depending on whether it is operational or a malfunction is present (in the event of a power failure, a battery / accumulator or capacitor can supply the electrical energy)). For example, it can indicate whether the sliding door 20 is closed and locked or whether an authorization credential (e.g.,an RFID card) has been recognized and whether access is granted. The expert recognizes that marking 57 may be optional and may, for example, be omitted depending on the location of the building sliding door system 100.

[0034] In one embodiment of the building sliding door system 100, the sliding door 20 opens automatically during normal operation when a person touches the operating panel 54; for example, the person presses (albeit relatively lightly) on the operating panel 54. In another embodiment, the operating device 50 can be configured for contactless operation during normal operation. Accordingly, the operating device 50 comprises a detection device 56, which can be configured for contactless or contact-based operation. In one embodiment for contactless operation, the detection device 56 has an electrical sensor connected to the control line 48 and configured to detect the approach of a finger to the operating panel 54 and to generate the electrical control signal, wherein the operating device 50 is in the first active state. The sensor can be, for example, a capacitive sensor or an optical sensor.In one embodiment of contact-based operation, the detection device 56 has an electrical pushbutton switch connected to the control line 48 and having an open and a closed state. The control panel 54 and the electrical pushbutton switch (56) are arranged such that, upon exertion of a first force that is smaller than the specified normal force, the control panel 54 acts on the electrical pushbutton switch (56) and brings it into the closed state, with the control device being in the first active state.

[0035] In the following description of the embodiment shown in Fig. 4B - Fig. 4D, the operating device 50 is designed to react to a person's touch during normal operation, but is not limited to this. The detection device 56 therefore comprises a pushbutton switch; the pushbutton switch is also designated by the reference symbol "56" below.

[0036] Fig. 4B shows a side sectional view of the operating device 50 along the section line A-A shown in Fig. 4A (Fig. 4C and Fig. 4D show corresponding sectional views). The operating device 50 is shown in an inactive state or a rest position, i.e., the operating panel 54 is not touched by a person, and the Bowden cable 53 is in a relaxed state. Inside the operating device 50 are a lever mechanism 58, which is mounted on a pivot 59 and connected to the Bowden cable 53, and an electrical pushbutton switch 56, which is electrically connected to the control line 48. The pushbutton switch 56 is also mechanically coupled to the lever mechanism 58, so that it moves with the lever mechanism 58 when the latter is deflected by the application of a force.

[0037] The control panel 54 is rotatably mounted on a pivot joint 60 on a (lower) side adjacent to the cover 55; the control panel 54 can be preloaded, e.g., by a spring (not shown). The pivot joint 60 is attached to the housing 50a in the region of the surface 10 and, when a force is applied, allows the control panel 54 to be pivoted into the control device 50, specifically against a counterforce (spring force) of the spring. The spring presses the control panel 54 in the opposite direction. In the rest position shown in Fig. 4B, the control panel 54 is pushed outward. The space into which the control panel 54 can be pivoted is designated as pivot space 61.

[0038] The pushbutton switch 56 is an electrical component that is activated by pressing a button 56a and deactivated again by releasing it due to a spring force. The pushbutton switch 56 establishes an electrical connection upon pressing, which is interrupted upon release. Fig. 4B shows that the button 56a is positioned very close to the bottom (toward the housing 50a) of the control panel 54, but is not pressed.

[0039] In Fig. 4C, the operating device 50 is shown in a first active state. This state can exist during normal operation of the building sliding door system 100. During normal operation, the building sliding door system 100 functions without disruption, partly because the building, and thus also the building sliding door system 100, are supplied with electrical energy (ie, no power outage). During normal operation, for example, actuation of the operating panel 54 is sufficient to initiate the automatic opening of the sliding door 20.

[0040] A person presses with a force Fl on the control panel 54, causing it to pivot about the pivot joint 60 by a distance Dl into the pivoting space 61. The deflection by the distance Dl causes the control panel 54 to press the button 56a and establish the electrical connection. The control device 51 detects the actuation of the pushbutton switch 56 based on the established electrical connection and then controls the drive device 6 to initiate the opening of the sliding door 20. Further details regarding the opening are provided in conjunction with Fig. 5 and Fig. 6.

[0041] The preload of the control panel 54 is adjusted via the spring force. It is selected such that the force Fl to be exerted is within a range with which people would typically press a button or pushbutton switch without damaging it, yet still feel as if they had actuated the button. The force Fl to be exerted is also selected such that the lever mechanism 58 is not actuated. In Fig. 4C, the lever mechanism 58 has the same position as in Fig. 4B.

[0042] In Fig. 4D, the operating device 50 is shown in a second active state. This second state can exist during emergency operation of the building sliding door system 100, for example, during a power failure. In the event of a power failure, the automatic door opening does not function, and the sliding door 20 must be unlocked and then opened by another method. The operating device 50 is designed so that the operating panel 54 can be pushed further into the pivoting space 61 by a force F2. The force F2 is selected such that it is greater than a specified normal force, i.e., the person must exert at least this normal force to effect the emergency opening. This also means that they must deliberately press harder on the operating panel 54, because the sliding door 20 moves during "normal" operation (the detection device 56 detects the approach of a finger or a pressure with the force F1).

[0043] The person presses on the control panel 54 with force F2, for example, because the sliding door 20 cannot be opened due to the initially applied force F1 and / or because the person knows that a power failure has occurred. Force F2 pivots the control panel 54 about the pivot joint 60 by a distance D2 into the pivoting space 61. The deflection by the distance D2 causes the control panel 54 to now rotate the lever mechanism 58 about the pivot joint 59. The lever mechanism 58 thereby tensions the Bowden cable 53, as shown in the embodiment according to Fig. 4D. The tensioned Bowden cable 53 unlocks the locking system 40.

[0044] In the embodiment according to Fig. 4B - Fig. 4D, the Bowden cable 53 is a pulling element that pulls on the lock 41 of the locking system 40. Those skilled in the art will recognize that, in another embodiment, the Bowden cable 53 can be a pressure element that exerts a compressive force on the lock 41 to unlock the locking system 40.

[0045] The technology described here is not limited to the configuration of the operating device 50 shown in Fig. 4A - Fig. 4D. As an alternative to the pivotable (rotatable) operating panel 54, the operating panel 54 can be configured such that, when force is applied, it can be moved substantially perpendicular to the surface 10 in the direction of the free space of the operating device 50. Those skilled in the art will recognize that the pushbutton switch 56 and the lever mechanism 58 are configured accordingly for this purpose, but retain their functions (e.g., establishing an electrical connection and tensioning the Bowden cable 53).

[0046] As explained above, the building sliding door system 100 can be opened using the operating device 50. Before and during opening, the sliding door 20 assumes various states; two of these states are shown as examples in Fig. 5 and Fig. 6. Fig. 5 shows a schematic representation of the building sliding door system 100 with a closed sliding door 20, and Fig. 6 shows a schematic representation of the building sliding door system 100 with the sliding door 20 (partially) open. These representations show, in particular, the locking system 40 and the door leaves 21, 22; the operating device 50 is shown only schematically.

[0047] The function of the building sliding door system 100 is based on a principle similar to that known from EP 2 876 241 A1. This describes a sliding door system in which two opposing door panels are coupled to an actuator that moves the door panels toward or away from each other. In relation to the building sliding door system 100 according to the technology described here, this means that the two door leaves 21, 22 have a first leaf spacing when the sliding door 20 is in the closed position. During the opening of the sliding door 20, the two door leaves 21, 22 are moved toward each other by the parallelogram guide system 23, which is driven by the drive unit 6, until they have a second leaf spacing, which is dimensioned such that the sliding door 20, in its fully or partially open position, has such a small thickness that it fits or can be slid into the wall shell area 4 (Fig. 6).The first leaf spacing is greater than the second leaf spacing. When the sliding door 20 is pushed out of the wall shell area 4, the two door leaves 21, 22 are moved away from each other (spread apart), so that the sliding door 20 assumes a specified thickness in the closed state (Fig. 5). The thickness is set such that the outer sides of the two door leaves 21, 22 are essentially flush with the outer sides of the wall shell area 4 or the building wall in the closed position. In Fig. 5, the sliding door 20 is locked by the locking system 40; the lock 41 engages and is locked in the locking part 42. The operating device 50 is, for example, in the inactive state in which a person can act on the operating panel 54 with a force F.In one embodiment, the lock 41 has an electrically controllable actuator 46, which, when activated via the control line 52, exerts a tensile or compressive force to unlock the lock 41. In one embodiment, the actuator 46 releases a bolt, allowing the drive unit 6 to pull the sliding door 20 and thus the lock 41 out of the locking part 42. If the actuator 46 is deactivated, the bolt is locked again. For activation, the operating device 50 is in the first active state as shown in Fig. 4C.

[0048] The lock 41 is also connected to the Bowden cable 53, which acts on the bolt and releases it when the person applies force F2 to the control panel 54. If this is the case, the control device 50 is in the second active state according to Fig. 4D, and the locking system 40 is unlocked. Fig. 6 shows the unlocked locking system 40 with the lock 41 already pulled out of the locking part 42. In one embodiment, the actuator 46 is also connected to the Bowden cable 53. The lock 41 and the actuator 46 are designed such that the lock 41 is unlocked when a pulling or pushing force is exerted on the actuator 46 by the Bowden cable 53. In one embodiment, the actuator 46 pulls the lock 41 out of the locking part 42.

[0049] Fig. 6 also shows that the person can act on the control panel 54 with a force F3, for example for emergency opening from the interior, where the force F3 can be substantially equal to the force F2; the force F3 can also be smaller or larger than the force F2. The locking system 40 is unlocked with the force F2; the sliding door 20 can then spring open on its own (e.g., due to a spring device arranged in the frame structure 30, which is tensioned during closing), so that the person only has to slide the sliding door 20. If the sliding door 20 does not spring open on its own, the person can use the force F3 to move the door leaves 21, 22, in conjunction with the parallelogram guide system 23, towards each other until they have the above-mentioned second leaf distance; in this state, the sliding door 20 can be pushed by the person into the wall shell area 4. In Fig.6, the sliding door 20 is already pushed slightly into the wall shell area 4.

[0050] In one exemplary embodiment, the operating device 50, in addition to the aforementioned functions, also offers a handle function that enables or facilitates the person to move the sliding door 20, particularly in the event of an emergency opening. Under the action of the force F2 or F3, the operating panel 54 is pressed into the pivoting space 61, creating a type of recessed grip (Fig. 4D). Once the door leaves 21, 22 have been moved sufficiently toward one another, the person can push the sliding door 20 into the wall shell area 4 using the recessed grip. The operating panel 54 and the pivoting space 61 are designed such that the person can grip the recessed grip with at least one finger and thus transmit a sufficiently large displacement force to the sliding door 20.

[0051] Finally, it should be noted that terms such as "having," "comprising," etc., do not exclude other elements or steps, and terms such as "a" or "an" do not exclude a plurality. Furthermore, it should be noted that features or steps described with reference to one of the above embodiments may also be used in combination with other features or steps of other embodiments described above. Reference signs in the claims are not to be considered as limitations.

Claims

Patent claims 1. A building sliding door system (100), comprising: a frame structure (30) having a passage area (2) and a wall shell area (4); a sliding door (20) displaceable in the frame structure (2) between a closed position and an open position along a sliding axis (x), said sliding door having a door leaf (21, 22), wherein the wall shell area (4) at least partially accommodates the sliding door (20) in the open position, wherein the door leaf (21, 22) extends substantially parallel to the sliding axis (x); an electromechanical drive unit (6) and a control device (51) configured to displace the sliding door (20); a locking system (40) comprising a lock (41) attached to the sliding door (20) and a locking part (42) mounted on the door frame (30); and an operating device (50) which is arranged on the door leaf (21, 22) and is accessible to a person having a surface (10),a detection device (56) and a movably mounted control panel (54) which occupies a first part of the surface (10) and is movable substantially in the direction of the force when a force is exerted by the person substantially in the direction of the surface, wherein the control device (50) is connected to the locking system (40) via a force transmission device (53) and to the control device (51) via a first control line (48), and wherein the control device (50) has an inactive state, a first active state, and a second active state, wherein in the first active state an electrical control signal can be generated by the detection device (56), wherein the detection device (56) is designed to detect an operation of the control panel (54) by the person, and wherein the control device (51) is designed,upon receipt of the control signal via the first control line (48), to send an unlocking signal via a second control line (52) to the locking system (40), wherein in the second active state, upon a force (F2) acting on the control panel (54) which is greater than a predetermined normal force, the control panel (54) exerts a force on the force transmission device (53), whereby the locking system (40) can be unlocked.

2. Building sliding door system (100) according to claim 1, wherein the detection device (56) comprises an electrical push button switch (56) which is connected to the first control line (48) and has an open and a closed state, wherein the operating panel (54) and the electrical push button switch (56) are arranged such that when a first force (Fl) which is smaller than the specified normal force is exerted, the operating panel (54) acts on the electrical push button switch (56) and brings it into the closed state, wherein the operating device (50) is in the first active state.

3. The building sliding door system (100) according to claim 1, wherein the detection device (56) comprises an electrical sensor connected to the first control line (48) and configured to detect an approach of a finger to the control panel (54) and to generate the electrical control signal, the control device (50) being in the first active state.

4. Building sliding door system (100) according to claim 2 or 3, wherein the operating device (50) has a lever mechanism (58) which is connected to the force transmission device (53), wherein the operating panel (54) is designed to act on the lever mechanism (58) when a force is applied, wherein the lever mechanism (58) is designed to act on the force transmission device (53).

5. Building sliding door system (100) according to claim 4, wherein the lever mechanism (58) is designed to exert a second force (F2) on the force transmission device (53) upon a second force action which is greater than the specified normal force, whereby the locking system (40) can be unlocked.

6. Building sliding door system (100) according to one of the preceding claims, wherein the operating device (50) has a rotation axis (60) which connects the operating panel (54) to a second part (55) of the surface (10), wherein the operating panel (54) is rotatable about the rotation axis (60) when a force is applied and can be pivoted into a pivoting space (61) of the operating device (50).

7. Building sliding door system (100) according to claim 6, wherein the second part of the surface (10) is a housing part of the operating device (50), or wherein the second part is a continuation surface of the first part of the surface (10).

8. Building sliding door system (100) according to one of claims 1 - 5, wherein the operating panel (54) is designed as a push button which, when a force is applied, can be moved into a pivoting space (61) of the operating device (50) substantially perpendicular to the surface (10).

9. Building sliding door system (100) according to claim 6, 7 or 8, wherein the operating panel (54) and the pivoting space (61) are designed to form a grip recess in the second active state of the operating device (50), by means of which the sliding door (20) can be displaced by the person along the sliding axis (x).

10. Building sliding door system (100) according to one of the preceding claims, wherein the lock (41) comprises an electrically controllable actuator (46) which is connected to the control device (51) via a second control line (52) and is designed to exert a first tensile or compressive force when activated by the control device (51) in order to unlock the lock (41).

11. Building sliding door system (100) according to claim 9, characterized in that the actuator (46) is also connected to the force transmission device (53), wherein the lock (41) and the actuator (46) are designed to unlock the lock (41) when a tensile or compressive force is exerted on the actuator (46) by the force transmission device (53).

12. Building sliding door system (100) according to one of the preceding claims, wherein the surface (10) of the operating device (50) is rectangular.

13. Building sliding door system (100) according to one of the preceding claims, wherein the force transmission device (53) comprises a Bowden cable (53).

14. Building sliding door system (100) according to one of the preceding claims, wherein the door leaf (21, 22) is in one piece, or wherein the door leaf comprises an inner door leaf (22) and an outer door leaf (21) separated from the inner door leaf (22) by a free space, wherein the operating device (50) is arranged on the inner door leaf (22) in a way that is accessible to the person.

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