Door system with a locking device for locking one door leaf

Abstract

Door system (1) with at least one movable door leaf (2), with a locking device (9) for locking the door leaf (2) in its closed position, wherein the locking device (9) has at least one push member (11, 12) which cooperates with at least one locking element or is formed integrally with a locking element which, in its locking position, engages in a locking receptacle (13, 14) arranged in a fixed position or on an adjacent door leaf (2), and wherein the locking device (9) for actuating the push member (11, 12) has at least one locking actuator (10) with at least one electric drive motor, characterized by that the push member (11, 12) interacts with at least one locking element (34, 35) which is designed to allow displacement of the push member (11, 12) in the direction of its locking position and to lock it in the opposite direction.

Description

[0001] The invention relates to a door system according to the preamble of claim 1.

[0002] From DE 103 10 085 B4, a door system with at least one movable door leaf is known. A locking device is provided for locking the door leaf in its closed position. The locking device has at least one push member which interacts with at least one locking element or is formed integrally with a locking element, wherein the locking element, in its locking position, engages in a locking receptacle arranged either stationary or on an adjacent door leaf. The locking device has at least one locking actuator with at least one electric drive motor for actuating the push member.

[0003] Other locking devices for door systems are known, for example, from DE 196 44 485 A1 or DE 693 26 891 T2.

[0004] The invention is based on the objective of creating a locking device for a door leaf which allows for a large locking stroke while maintaining a compact design and low energy consumption. Furthermore, manual emergency unlocking of the door leaf should be possible.

[0005] The problem is solved by the features of claim 1.

[0006] The dependent claims describe advantageous embodiments of the invention.

[0007] According to the invention, the push member interacts with at least one locking element, which is designed to allow displacement of the push member in the direction of its locking position and to lock it in the opposite direction. This makes it possible to use a compact and energy-saving locking actuator, which, for example, displaces the push member in several partial strokes.

[0008] In a preferred embodiment, the locking element can be configured to lock the sliding member by clamping. Alternatively or additionally, the locking element can have at least one magnetic component. Alternatively or additionally, the locking element can have at least one electrical actuator, for example, an electromagnet, electric motor, piezoelectric element, or the like. An electrical actuator enables, for example, remote release of the locking mechanism of the sliding member, for instance, by a corresponding control command from a door system control unit.

[0009] The locking element may include at least one mechanical actuating element that allows manual unlocking of the door leaf, for example in emergency situations and / or in the event of a power failure.

[0010] The push element can interact with at least one return element, for example a spring, to return to a home position when the locking mechanism is released.

[0011] An exemplary embodiment is explained in more detail below using the figures in the drawing.

[0012] This shows: Fig. 1a and Fig. 1b a front view of a generic door system, in two different operating states; Fig. Figures 2a to 2n are a schematic representation of a locking device of a door leaf in various successive operating states.

[0013] In the Fig. 1a and Fig. Figure 1b shows a generic door system 1 in two different operating states. In the specific embodiment, the door system 1 is designed as an automatic sliding door and has two door leaves 2 driven in opposite directions by a drive unit 5, which are guided slidably at the top on a stationary guide device, for example by means of roller carriages 7 in a track profile 6, which is arranged together with the drive unit 5 in the area of ​​a stationary bolt.

[0014] The drive unit 5 includes a control unit (not shown) that controls the movement of the door leaf 2 driven by the drive unit 5, e.g., depending on sensor signals and / or manual switching operations. The control unit may include a memory unit in which the parameters required for the operation of the drive unit 5 can be stored non-volatilely. The drive unit 5 can be operated in various operating modes, and switching between these modes can be carried out by authorized personnel, for example, via a program switch. In at least one operating mode of the drive unit 5, for example, in so-called night mode, it may be necessary to lock the door leaf 2 against a fixed component of the door system 1.

[0015] In the main closing edge area of ​​each door leaf 2, a locking device 9 is arranged for this purpose. A locking actuator 10 is integrated into the profile of the door leaf 2, which, upon a corresponding actuation command from the control unit of the drive unit 5, actuates at least one push element 11, 12. The locking actuator 10 contains an electric drive motor, the electrical power supply of the locking actuator 10 being provided via an electrical wiring device not shown here. An electrical power transmission device is provided at the interface between the door leaf 2 and a stationary component of the door system, which is effective in at least one position of the door leaf 2, in particular in the closed position, and can be designed with contact, e.g. with contact pins, or without contact, e.g. with induction coils. Alternatively or additionally, an electrical energy storage device, e.g., a battery, can be permanently attached to the door leaf.a battery, accumulator or capacitor may be arranged which at least temporarily ensures the electrical power supply of the locking actuator 10.

[0016] The push member 11, 12 actuated by the locking actuator 10 can be formed in one piece as a bolt in its end area or cooperate with a bolt element, wherein the bolt can engage in at least one bolt receptacle 13, 14 arranged in or on a stationary component of the door system 1 and / or on an adjacent door leaf 2.

[0017] In this embodiment, two rod-shaped push elements 11, 12 are provided, which are slidably mounted in the profile of the door leaf 2 and are integrally formed as bolts at their ends. The push element 11, shown at the top of the drawing, interacts with a bolt receptacle 13, which is mounted in the area of ​​the track profile 6 such that the push element 11 is located below the bolt receptacle 13 when the door leaf 2 is closed. Similarly, the push element 12, shown at the bottom of the drawing, interacts with a bolt receptacle 14, which is designed as a floor sleeve and is mounted in the building floor 8 such that the push element 12 is located above the bolt receptacle 14 when the door leaf 2 is closed.

[0018] In the operating state according to Fig. 1a the door leaves 2 are in a partially open position, whereby the bolts which are integral with the push members 11, 12 are not effective and the door leaves 2 can be moved in both directions by the drive device 5.

[0019] However, door leaves 2 are located as shown in the diagram. Fig. Figure 1b shows the operating state in its closed position, so that the bolts, which are integral with the push members 11, 12, are displaced by the locking actuators 10 and engage in the bolt receptacles 13, 14, thus locking the door leaves 2 in this position. In this operating state, the door leaves 2 cannot be opened by unauthorized persons without the use of force.

[0020] At the in Fig. In the operating state of the locking device 9 shown in Figure 2a, the bolts, which are integral with the push members 11, 12, are not effectively locking, as they do not engage in the bolt receptacles 13, 14; this is therefore the same operating state as in Figure 2a. Fig. 1a shown.

[0021] In the Fig. Sections 2a ff. now schematically depict the essential components of the locking device 9 to illustrate its advantageous function. Here, the following are shown in the Fig. 2b ff. only the reference symbols of those components which are relevant for the respective operating state are shown.

[0022] In the central area of ​​the locking actuator 10, a drive wheel 15 is rotatably mounted about a pivot axis 16. The drive wheel 15 forms the final stage of a gearbox (not shown) which can be driven by an electric drive motor (also not shown). An off-center, bolt-like driver 17 is attached to the drive wheel 15.

[0023] The rod-like push elements 11, 12 are each connected to a rack 18, 19 in the area of ​​the locking actuator 10. The racks 18, 19 are each acted against a fixed stop 32, 33 by means of a return element 27, 30, designed as a tension spring, acting between a rack-fixed attachment point 26, 29 and a fixed point 28, 31 on the wing, thus defining the retracted end position of the push elements 11, 12. In alternative embodiments, not shown here, the return elements 27, 30 can also be designed as compression springs, in which case, of course, the fixed point 28, 31 on the wing must be located on the other side of the rack-fixed attachment point 26, 29.

[0024] Each thrust member 11, 12 passes through a locking element 34, 35, which allows displacement of the thrust member 11, 12 in one direction, but blocks it in the opposite direction.

[0025] The locking of the push member 11, 12 by the locking element 34, 35 can be achieved mechanically, in particular by clamping. Alternatively or additionally, the locking element 34, 35 can have a magnetic component and / or an electrical actuator, for example electromagnets, electric motors, piezoelectric elements or the like.

[0026] By means of a command transmitted mechanically or electrically to the locking element 34, 35, the locking of the push members 11, 12 by the locking element 34, 35 can be temporarily lifted, i.e. the push member 11, 12 can then also pass the locking element 34, 35 in the opposite direction.

[0027] For example, a solenoid can be provided, the at least temporary energizing or de-energizing of which can release the mechanical clamping of the push members 11, 12 by the locking element 34, 35. Alternatively or additionally, an actuating element, such as a handle or tool engagement, can be provided on the door leaf 2 for manually actuating the locking element 34, 35 in order to manually release the locking of the push members 11, 12 by the locking element 34, 35.

[0028] The racks 18, 19 each have several recesses 20, 21, 22, 23, 24, 25, the last recess 22, 25, facing away from the push member 11, 12, having a rectangular cross-section and being approximately twice as long as the other, shorter recesses 20, 21, 23, 24, which each have a segment-shaped cross-section with one flank curved in an approximately quarter-circle shape and one straight flank, whereby only the straight flanks are effective for the function of the locking device, i.e., they interact with the driver 17 of the drive wheel 15. In alternative embodiments, not shown here, the shorter recesses can also be configured differently, e.g., rectangular with two straight flanks.However, it is essential that the straight flanks of two successive recesses 20, 21, 22, 23, 24, 25, which interact with the driver 17 of the drive wheel 15, have a distance which corresponds to approximately 1.5 times the radius of the path of movement of the driver 17 on the rotating drive wheel 15.

[0029] In the Fig. In the basic position shown in 2a, both racks 18, 19 rest against their wing-fixed stops 32, 33. The driver 17 of the drive wheel 15 is located next to the first recess 23 of the rack 19 on the right in the drawing.

[0030] In the Fig. In the operating state shown in Figure 2b, the locking actuator 10 was energized, so that the drive wheel 15 had already completed a clockwise rotation of a few degrees, here designated as direction of rotation 36. This direction of rotation 36 of the drive wheel is maintained constantly throughout the entire positioning process of the push elements 11, 12.

[0031] The driver 17 of the drive wheel 15 now comes into contact with the lower, straight flank of the first recess 23 of the rack 19 on the right in the drawing and pushes the rack 19 and thus also the push member 12 connected to the rack 19 downwards against the force of the return element 30, here designated with direction of movement 37.

[0032] After about half a revolution of the drive wheel 15, the in Fig. The position shown in Figure 2c is reached. The driver 17 of the drive wheel 15 now leaves the first recess 23 of the rack 19. The rack 19 would now, under the influence of the return element 30, snap back against its fixed stop 33. However, this is prevented by the locking element 35, which interacts with the push member 12 and blocks the push member 12, and thus also the rack 19 connected to the push member 12, in this position after the driver 17 of the drive wheel 15 has left the first recess 23 of the rack 19 and is now located next to the first recess 20 of the rack 18 on the left in the drawing. The tip of the push member 12, which forms the lower latch, now engages slightly in the lower latch receptacle 14.However, this shallow immersion depth, assuming the locking process was already complete, would not yet be sufficient for a secure locking of the door leaf 2, as the push member 12 could easily snap back out of the bolt receptacle due to the application of force and a resulting deformation of the door leaf 2.

[0033] After approximately one further rotation of the drive wheel 15 by a few degrees, the in Fig. The position shown in 2d is reached. The driver 17 of the drive wheel 15 now comes into contact with the upper, straight flank of the first recess 20 of the rack 18 on the left in the drawing and pushes the rack 18 and thus also the push member 11 connected to the rack 18 upwards against the force of the return element 27, here designated by direction of movement 38.

[0034] After approximately another half turn of the drive wheel 15, the Fig. The position shown in Figure 2e is reached. The driver 17 of the drive wheel 15 now leaves the first recess 20 of the rack 18. The locking element 34, which interacts with the push member 11, blocks the push member 11 and thus also the rack 18 connected to the push member 11 in this position, after the driver 17 of the drive wheel 15 has left the first recess 20 of the rack 18 and is now located next to the second recess 24 of the rack 19 on the right in the drawing. The tip of the push member 11, which forms the upper bolt, now engages slightly in the upper bolt receptacle 13, but even this small engagement depth would not yet be sufficient for a secure final locking of the door leaf 2.

[0035] After approximately one further rotation of the drive wheel 15 by a few degrees, the in Fig. The position shown in 2f is reached. The driver 17 of the drive wheel 15 now comes into contact with the lower, straight flank of the second recess 24 of the rack 19 on the right in the drawing and pushes the rack 19 and thus also the push member 12 connected to the rack 19 further downwards against the force of the return element 30.

[0036] After approximately another half turn of the drive wheel 15, the Fig. The position shown in Figure 2g is reached. The driver 17 of the drive wheel 15 now leaves the second recess 24 of the rack 19. The locking element 35, which interacts with the push member 12, blocks the push member 12 and thus also the rack 19 connected to the push member 12 in this position, after the driver 17 of the drive wheel 15 has left the second recess 24 of the rack 19 and is now located next to the second recess 21 of the rack 18 on the left in the drawing. The tip of the push member 12, which forms the upper latch, now engages somewhat further into the lower latch receptacle 14.

[0037] After approximately one further rotation of the drive wheel 15 by a few degrees, the in Fig. The position shown in 2h is reached. The driver 17 of the drive wheel 15 now comes into contact with the upper, straight flank of the second recess 21 of the rack 18 on the left in the drawing and pushes the rack 18 and thus also the push member 11 connected to the rack 18 further upwards against the force of the return element 27.

[0038] After approximately another half turn of the drive wheel 15, the Fig. The position shown in Figure 2i is reached. The driver 17 of the drive wheel 15 now leaves the second recess 21 of the rack 18. The locking element 34, which interacts with the push member 11, blocks the push member 11 and thus also the rack 18 connected to the push member 11 in this position, after the driver 17 of the drive wheel 15 has left the second recess 21 of the rack 18 and is now located next to the third, last recess 25 of the rack 19 on the right in the drawing. The tip of the push member 11, which forms the upper latch, now engages somewhat further into the upper latch receptacle 13.

[0039] After approximately one further rotation of the drive wheel 15 by a few degrees, the in Fig. The position shown in Figure 2j is reached. The driver 17 of the drive wheel 15 now comes into contact with the lower, straight flank of the third, last recess 25 of the rack 19 on the right in the drawing and pushes the rack 19 and thus also the push member 12 connected to the rack 19 further downwards against the force of the return element 30.

[0040] After approximately another half turn of the drive wheel 15, the Fig. The position shown in Figure 2k is reached. The driver 17 of the drive wheel 15 now leaves the third and final recess 25 of the rack 19. The locking element 35, which interacts with the push member 12, blocks the push member 12 and thus also the rack 19 connected to the push member 12 in this position, after the driver 17 of the drive wheel 15 has left the third and final recess 25 of the rack 19 and is now located next to the third and final recess 22 of the rack 18 on the left in the drawing. The tip of the push member 12, which forms the lower bolt, now engages in the lower bolt receptacle 14 at its final insertion depth, suitable for securely locking the door leaf 2.

[0041] After approximately one further rotation of the drive wheel 15 by a few degrees, the in Fig. The position shown in Figure 2l is reached. The driver 17 of the drive wheel 15 now comes into contact with the upper, straight flank of the third, last recess 22 of the rack 18 on the left in the drawing and pushes the rack 18 and thus also the push member 11 connected to the rack 18 further upwards against the force of the return element 27.

[0042] After approximately another half turn of the drive wheel 15, the Fig. The position shown in 2m is reached. The driver 17 of the drive wheel 15 now leaves the third, last recess 22 of the rack 18. The locking element 34, which interacts with the push member 11, blocks the push member 11 and thus also the rack 18 connected to the push member 11 in this position, after the driver 17 of the drive wheel 15 has left the third, last recess 22 of the rack 18. The tip of the push member 11, which forms the upper bolt, now also engages in the upper bolt receptacle 13 at its final insertion depth, suitable for securely locking the door leaf 2. The driver 17 of the drive wheel 15 is now again located next to the third, last recess 25 of the rack 19 on the right in the drawing.

[0043] Since the last recesses 22, 25 of the two racks 18, 19, facing away from the push members 11, 12, have a clear width between their flanks which is larger than the diameter of the path of movement of the driver 17 on the rotating drive wheel 15, the two racks 18, 19 are no longer moved further when the drive wheel 15 is rotated further.

[0044] The drive wheel 15, which carries the driver 17, is then stopped so that the driver 17 is again in a central position between the two racks 18, 19, as for example in Fig. Figure 2n shows that the stop command to the locking actuator 10, which drives the drive wheel, can be generated in various ways. For example, a predetermined time can be defined for the rotation of the drive wheel 15, during which the complete locking of the push elements 11, 12 is reliably achieved. Alternatively, the number of revolutions required for the complete locking of the push elements 11, 12 can be defined, depending on the number of recesses 20, 21, 22, 23, 24, 25 of the racks 18, 19.

[0045] The locking device 9 of the door leaf 2 remains in the position it is in Fig. The locked operating state shown in Figure 2n remains in effect until the locking of the push members 11, 12 by the locking elements 34, 35 is released. This can be done mechanically and / or electrically, for example by energizing or de-energizing an electromagnet located in the locking element 34, 35.

[0046] The arrangement shown is an embodiment of the inventive concept. This concept can also be applied in many other embodiments not shown here. For example, locking devices with only one push element can also be implemented. Furthermore, numerous variations are possible with regard to the number, size, and shape of the recesses in the rack.

[0047] Since the stroke of the thrust members 11, 12 is divided into several and - in the case of several thrust members 11, 12 - alternating partial strokes, the locking actuator 10 can be designed with relatively small installed power and thus be compact. List of reference symbols 1 door system 2 door leaves 3 Fixed field 4 skylights 5 Drive unit 6 guide rail profile 7 trolleys 8 Building floor 9 Locking device 10 locking actuator 11 Thrust element 12 thrust link 13 bolt holder 14 bolt holder 15 drive wheel 16 axis of rotation 17 drivers 18 Rack and pinion 19 Rack and pinion 20 Exclusion 21 Exclusion 22 Exclusion 23 Exclusion 24 Exclusion 25 Exclusion 26 Mounting point 27 Return element 28 Fixed point 29 Fastening element 30 Reset element 31 Fixed point 32 stops 33 attacks 34 Locking element 35 Locking element 36 Direction of rotation 37 Direction of movement 38 Direction of movement

Claims

[1] Door assembly (1) with at least one movable door leaf (2), with a locking device (9) for locking the door leaf (2) in its closed position, wherein the locking device (9) has at least one push member (11, 12) which cooperates with at least one locking element or is formed integrally with a locking element which, in its locking position, engages in a locking receptacle (13, 14) arranged in a fixed position or on an adjacent door leaf (2), and wherein the locking device (9) for actuating the push member (11, 12) has at least one locking actuator (10) with at least one electric drive motor, characterized by , that the push member (11, 12) interacts with at least one locking element (34, 35) which is designed to allow displacement of the push member (11, 12) in the direction of its locking position and to lock it in the opposite direction. [2] Door system (1) according to claim 1, characterized by , that the locking element (34, 35) is designed to lock the push member (11, 12) by clamping. [3] Door system (1) according to claim 1 or 2, characterized by , that the locking element (34, 35) has at least one magnetic component. [4] Door system (1) according to one of the preceding claims, characterized by , that the locking element (34, 35) has at least one electrical actuator. [5] Door system (1) according to one of the preceding claims, characterized by that the locking element (34, 35) has at least one mechanical actuating element. [6] Door system (1) according to one of the preceding claims, characterized by, that the thrust member (11, 12) interacts with at least one restoring element (27, 30).

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