DE102018208509B3 - Electrically switchable locking device for a door system - Google Patents

Abstract

The invention relates to an electrically switchable locking device (3) for a door system, comprising a housing (7), a door latch latch (11) cooperating with a latch, an electrically actuable actuator (30) and a latch between the door latch (11) and the actuator ( 30) arranged locking arrangement (20), which switches the actuator (30) between a locking state and a release state, wherein the locking arrangement (20) within the housing (7) at least one in a guide (28) linearly movably mounted ball (22A, 22B) as a locking element (22) and in a through hole (26.1) guided locking axis (24), which moves the actuator (30) via a slide (29) between a locking position and a release position, wherein the locking axis (24) in the locking position the Linear movement of the at least one ball (22A, 22B) and the movement of the door opener rfalle (11) blocks and releases in the release position, and a corresponding door system with such a locking device (3). According to the invention, the locking arrangement (20) comprises a damping device (50) with at least one elastic damping element (52) which dampens mechanical vibrations and / or vibrations that can be transmitted to the locking axis (24).

Description

The invention relates to an electrically switchable locking device for a door system referred to in the preamble of claim 1. Art and a corresponding door system with such an electrically switchable locking device.

Door systems with at least one door leaf and an electrically switchable locking device are known from the prior art, which is used as a door opener. Such an electrically switchable locking device generally comprises a housing, a door latch latch which cooperates with a latch, which is movable between a closed position and an open position, an electrically actuatable actuator and a locking arrangement arranged between the door latch latch and the actuator, which the actuator drives between a locking state and a release state switches. The door opener latch is locked in the closed position in the locked state of the locking arrangement against movement into the open position. In the release state of the locking arrangement, the door opener latch is released for movement into the open position. Electric door openers may have two types, i. E. between a load current version and a quiescent current version, can be distinguished. In the working current version, the locking arrangement is switched by energizing the actuator from the locking state to the release state. In the quiescent current version, the locking arrangement is switched by energizing the actuator from the release state to the lock state.

From the DE 10 2017 202 376 B3 a generic electrically switchable locking device for a door system is known, which is used in particular as a door opener. The electrically switchable tumbler includes a housing, a door latch latch cooperating with a latch latch, which is movable between a closed position and an open position, an electrically operable actuator, and a latch assembly disposed between the door latch latch and the actuator which the actuator drives between a latch condition and a latch switches to a release state. The door opener latch is locked in the closed position in the locked state of the locking arrangement against movement into the open position and released in the release state of the locking arrangement for movement into the open position. Here, the locking arrangement comprises within the housing at least two balls linearly summarized in a guide as locking elements and guided in a through hole locking axis, which the actuator between a locking position, which corresponds to the locking state of the locking assembly, and a release position shifts, which corresponds to the release state of the locking assembly , The leadership of the at least two balls extends between the door latch and the locking axis and opens into the through hole of the Verrieglungsachse, the locking axis in the locked position blocks the linear movement of the balls and the movement of the door latch and releases in the release position.

US 2016/0 130 838 A1 discloses a locking mechanism having a piston, a plurality of locking elements, a cylindrical housing in which the locking elements are housed and a sleeve, wherein the sleeve is movable relative to the cylindrical housing between an unlocked and a locked position , To restrict the movement of the piston, the locking elements are held in engagement by the sleeve in the locked position.

The invention has for its object to provide an electrically switchable locking device for a door system and a corresponding door system with such an electrically switchable locking device, which has a robust mechanical construction, which can be opened under low load friction and with little effort and against a by vibrations and / or vibration caused accidental unlocking is protected.

This object is achieved by the features of the electrically switchable locking device for a door system according to claim 1 and by the features of the door system according to claim 18.

Advantageous embodiments and further developments of the invention are specified in the remaining claims.

In order to provide a robust mechanical construction, which can be opened under low preload friction and with little effort and is protected against being caused by vibration and / or vibration accidental unlocking, the locking assembly comprises a damping device with at least one elastic damping element, which is transferable to the locking axis dampens mechanical vibrations and / or vibrations.

In addition, a door system is proposed which comprises at least one door leaf and such an electrically switchable locking device, which is used as a door opener.

The execution of the at least one locking element as a ball causes the locking device can be easily opened both in a panic function and with preload, the damping device prevents that in the locked state of the locking arrangement periodic and / or non-periodic oscillations or linear and / or non-linear vibrations are transmitted from the environment, for example via the storage of the locking axis on this. This can be prevented in an advantageous manner that the locking axis moves in the unlocking due to the mechanical vibration and / or vibration and the at least one ball as a locking element unintentionally releases the door latch.

In addition, embodiments of the invention provide a robust mechanical and impact resistant construction. Furthermore, the execution of the at least one locking element as guided in a guide ball allows a small design of the locking device, which can also be easily integrated into the sheet or the frame of the corresponding door leaf.

In an advantageous embodiment of the locking device, the at least one elastic damping element can be arranged on at least one end of the locking axis axially between the locking axis and a receptacle of the locking axis. In this case, the at least one elastic damping element can be arranged, for example, between the locking axis and the slide and / or between the locking axis and a first rotation lock. As a result, a transmission of mechanical vibrations and / or vibrations via the slide and / or the first rotation lock can advantageously be at least reduced or completely prevented.

In a further advantageous embodiment of the locking device, the locking axle may have at its ends a smaller diameter, on which the at least one damping element can be pushed. As a result, a simple assembly of the at least one damping element prior to installation of the locking axis is possible. The at least one damping element can be designed for example as a round or square perforated disc. Preferably, the at least one damping element is made of an elastomer or rubber or other suitable elastic material.

In a further advantageous embodiment of the locking device, the locking arrangement may have a Verklemmungsschutz with a parallel to the locking axis arranged spring-loaded sliding element, which has at least one recess into which enters the at least one ball in the release state of the locking arrangement when acted upon by the door latch and the sliding element against the force of a Return spring moves, the sliding element moves when releasing the door latch latch the at least one ball and the door latch latch back into the closed position. Due to the force of the return spring, which moves the at least one ball over the sliding element upon release of the door latch latch from the locking axis, the Verklemmungsschutz a jamming of the locking device, which occurs between the at least one ball and the locking axis, at least complicate or completely prevent it in the ideal case. In addition, the recess may have a run-on slope, at which the at least one ball enters the recess. In this case, the at least one ball can move the sliding element perpendicular to the direction of the linear movement of the at least one ball. In addition, the recess may limit the linear movement of the at least one ball. The starting slope facilitates the entry of the ball into the recess of the sliding element and provides a length of the displacement of the sliding element to the stop of the at least one ball at the bottom of the recess.

In a further advantageous embodiment of the locking device, the at least one ball in the linear movement on a guide contour of the door opener latch and roll on the guide. Due to the point-shaped contact points between the at least one ball and the guide and the guide contour of the door latch case results in only a small amount of friction during the released opening movement.

In a further advantageous embodiment of the locking device, the locking axle may have at least a first recess on the circumference, which can be aligned with the guide in the release state of the locking arrangement. In this case, the at least one ball can be at least partially received by the at least one first recess. The at least one first recess is preferably made rounded to allow a low-friction as possible rolling movement of the at least one ball. Furthermore, the locking axle can have at least one first blocking region on the circumference, which in the locking state of the locking arrangement at least partially covers the guide and can block at least one ball.

In a further advantageous embodiment of the locking device, the door opener latch can be designed as a rotary latch and rotatably mounted in the housing about an axis of rotation.

This can be done by the latch against the force of the return spring of the sliding element of Verklemmungsschutzes the actuation of the door latch.

In a further advantageous embodiment of the locking device, the guide can be arranged in the housing such that a center of the at least one ball is arranged above the axis of rotation of the door latch bolt designed as a rotary latch. This results in an improved leverage effect, whereby the applied force for transferring the door latch latch from the closed position to the open position can be further reduced in an advantageous manner.

In a further advantageous embodiment of the locking device, the guide contour of the door opener latch can have at least one further recess which can at least partially accommodate the at least one ball in the closed position of the door opener latch. The further depression is preferably made rounded in order to enable as low as possible rolling movement of the at least one ball. In the embodiment of the door opener latch as a rotary latch, the recess of the guide contour can be arranged so that a contact area of the at least one ball in the recess above the axis of rotation of the door latch constructed as a rotary latch is arranged. As a result, in the locked state of the locking arrangement, the guide contour can be supported by the latch on the at least one ball, which can be supported on the blocking region of the locking axis and on the guide in the housing and block the movement of the door latch in the open position. By this arrangement of the recess of the guide contour of the rotary bolt acting on the at least one ball support force can be advantageously divided, so that a substantial proportion of the supporting force acts on the housing and not on the blocking region of the locking axis. In the release state of the locking arrangement, the guide contour can roll on exposure to the door latch by the latch on the at least one ball, so that the door opener trap to perform the movement in the open position and move the at least one ball in the direction of locking axis and sliding element.

In a further advantageous embodiment of the locking device, the guide can be designed as a passage opening in the housing, the dimensions of which are adapted to a diameter of the at least one ball. By using only one ball, which is guided by a single guide between the door opener latch and the locking axis, there results a particularly compact design of the locking device.

In a further advantageous embodiment of the locking device, the locking arrangement may comprise two guides, in which in each case at least one ball can be guided linearly movable and rotatable. The guides can open at a predeterminable distance in the passage opening of the locking axis, which may have two first recesses and two first blocking regions whose axial distance corresponds to the distance of the guides, wherein the sliding element has two recesses for guided in the respective guide at least one ball , By using two balls, which are each guided by a guide between the door latch and the locking axis, the support and guidance of the door latch can be improved in an advantageous manner. In addition, there is an improved power transmission in a compact design of the locking device.

In a further advantageous embodiment of the locking device, two balls can be summarized linear movements in at least one guide, wherein acted upon by the latch case door latch can cause the linear movement of the two balls in the open position in which a first ball on a guide contour of the door latch and on can roll off a second ball. The second ball can run into a corresponding recess of the sliding element and move the sliding element against the force of the return spring, wherein the sliding element can move the two balls and the door opener latch in release of the door latch case in the closed position. By using two balls, which are guided in a common guide between the door latch and the locking axis, larger distances can be bridged. By using two pairs of balls in two guides, the support and guidance of the door opener trap can be improved in an advantageous manner. Of course, more than two balls can be arranged in a guide. Due to the punctiform contact points between the first ball and the guide contour of the door opener trap and between the first ball and the second ball results in only a small amount of friction during the released opening movement of the door latch. Here, the balls may have the same diameter or different diameters. For example, the first ball may have a larger diameter than the second ball. Due to the different diameters of the two balls, the smaller second ball can be guided in a smaller diameter portion of a stepped through hole than the larger first ball. This can the required space can be reduced. In addition, the guidance and support of the guide contour of the door opener catch on the first ball can be optimized or improved and adapted to the effective support force by the larger diameter of the first ball. Due to the smaller diameter of the second ball, the at least one recess and the at least one blocking region on the locking axis can likewise be dimensioned smaller for the same functionality. Balls of the same diameter allow for better power transmission.

In a further advantageous embodiment of the locking device, the locking axis for selectively switching the locking arrangement between quiescent current version and working current execution and circumferentially at least a second blocking region, which may have a circumferential distance of 180 ° to the at least one first blocking region, and at least one second recess , which may have a distance of 180 ° to the at least one first recess.

The locking axis can set the quiescent current version for the locking arrangement in a first rotational position, which assumes the release state in the de-energized state of the electric actuator. In a rotated by 180 ° second rotational position, the locking axis can set the Arbeitsstromtypausführung for the locking assembly, which assumes the release state in the energized state of the electric actuator. In addition, the at least one first blocking region at the level of the at least one second depression and the at least one second blocking region at the level of the at least one first depression can be arranged.

With this embodiment, the change between the quiescent current type and the working current type can be made simply by removing an axle fuse and rotating the locking axis through 180 °. Then the axle lock can be reinstated and thus cooperate with the first free end of the locking axle, that a rotational movement of the locking axle is blocked.

Embodiments of the invention will be explained in more detail with reference to drawings. In the drawings, like reference numerals designate components or elements that perform the same or analogous functions.

• 1 eine schematische perspektivische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen elektrisch schaltbaren Zuhaltevorrichtung für eine Türanlage,
• 2 eine schematische Seitenansicht der Zuhaltevorrichtung aus 1,
• 3 eine schematische perspektivische Darstellung der Zuhaltevorrichtung aus 1 und 2 ohne Gehäuse und Deckel mit der Verriegelungsvorrichtung im Verriegelungszustand,
• 4 eine schematische Draufsicht auf die Zuhaltevorrichtung aus 3,
• 5 eine schematische Seitenansicht der Zuhaltevorrichtung aus 3 und 4,
• 6 eine schematische Schnittdarstellung eines Ausführungsbeispiels einer Verriegelungsachse der Zuhaltevorrichtung aus 3 bis 5,
• 7 eine schematische Schnittdarstellung der Zuhaltevorrichtung aus 2 entlang der Schnittlinie A-A mit einer Türöffnerfalle in der Geschlossenstellung und einer Verriegelungsanordnung im Verriegelungszustand,
• 8 eine schematische Schnittdarstellung der Zuhaltevorrichtung aus 2 entlang der Schnittlinie A-A mit der Türöffnerfalle in der Offenstellung und der Verriegelungsanordnung im Freigabezustand,

Showing:

• 1 1 is a schematic perspective view of an embodiment of an electrically switchable locking device according to the invention for a door system,
• 2 a schematic side view of the locking device 1 .
• 3 a schematic perspective view of the locking device 1 and 2 without housing and lid with the locking device in the locked state,
• 4 a schematic plan view of the locking device 3 .
• 5 a schematic side view of the locking device 3 and 4 .
• 6 a schematic sectional view of an embodiment of a locking axis of the locking device 3 to 5 .
• 7 a schematic sectional view of the locking device 2 along the cutting line AA with a door latch in the closed position and a locking arrangement in the locked state,
• 8th a schematic sectional view of the locking device 2 along the cutting line AA with the door opener latch in the open position and the lock assembly in the release state,

How out 1 to 8th can be seen, embodiments include an electrically switchable locking device according to the invention 3 for a door system in each case a housing 7 , a door latch latch cooperating with a latch 11 which is movable between a closed position and an open position, an electrically actuable actuator 30 and one between the door opener trap 11 and the actuator 30 arranged locking arrangement 20 , which is the actuator 30 switches between a lock state and a release state. The door opener trap 11 is in the closed position in the locked state of the latch assembly 20 locked against movement into the open position and in the release state of the locking arrangement 20 released for movement into the open position. The locking arrangement 20 includes within the housing 7 at least one in a leadership 28 linearly mounted ball 22A . 22B as a locking element 22 and one in a through hole 26.1 guided locking axle 24 , which is the actuator 30 over a slider 29 between a locking position, which corresponds to the locking state of the locking arrangement 20 corresponds, and a release position shifts, which the release state of the locking assembly 20 equivalent. The leadership 28 the least a ball 22A . 22B runs between the door opener trap 11 and the locking axis 24 and opens into the passage opening 26.1 the locking axle 24 where the locking axis 24 in the locking position, the linear movement of the at least one ball 22A . 22B and the movement of the door opener trap 11 blocked and released in the release position.

According to the invention, the locking arrangement comprises 20 a damping device 50 with at least one elastic damping element 52 which is on the locking axis 24 transmissible mechanical vibrations and / or vibrations dampens.

As can also be seen from FIGS. 3 to 5, a displacement path of the locking axis is shown 24 predetermined so that the at least one first blocking area 24.2a in the locking position between 20% and 50% of a clear width of the guide or a diameter of the at least one ball 22A . 22B covers. In the illustrated embodiment, the at least one first blocking region covers 24.2a in the locked position about 50% of the clear width of the guide 28 or the diameter of the at least one ball 22A . 22B from. Of course, another percentage coverage in the range between 20% and 50% can be given to an unwanted release of the movement of the door latch 11 to prevent from the closed position to the open position. The chosen displacement is a compromise between safety and required driving force of the actuator 30 because there are larger actuators to implement a longer adjustment 30 required are.

How out 4 to 6 it can be seen that is at least one elastic damping element 52 at least one end of the locking axis 24 axially between the locking axis 24 and a recording of the locking axis 24 arranged. In the illustrated embodiment, an elastic damping element 52 at one end of the locking axle 24 between the locking axis 24 and the slider 29 arranged. This allows mechanical vibrations or shocks and / or vibrations, which on the recordings on the locking axis 24 be transmitted attenuated or reduced. Here, the elastic damping element, which is made for example of an elastomer or rubber or other suitable elastic material, able to dampen the occurring mechanical vibrations or shocks and / or vibrations, so that an unwanted movement of the locking axis 24 can be prevented in unlocking in an advantageous manner. In an alternative embodiment, not shown, is an elastic damping element 52 additionally or alternatively between the locking axis 24 and a first anti-twist device 26.2 ie at the other end of the locking axle 24 arranged. As in particular from 6 it can be seen has the locking axis 24 at their ends a smaller diameter, on which the at least one damping element 52 is deferred. In the illustrated embodiment, the damping element 52 designed as a round perforated disc. Alternatively, the damping element 52 be executed as an angular perforated disc.

How out 3 to 8th Further, the locking arrangement comprises 20 in the illustrated embodiment, a deadlock 40 with a parallel to the locking axis 24 arranged spring-loaded sliding element 42 which has at least one recess 44 in which the at least one ball 22A . 22B in the release state of the locking arrangement 20 when acted upon by the door opener trap 11 enters and the sliding element 42 against the force of a return spring 46 shifts, with the sliding element 42 upon release of the door opener trap 11 the at least one ball 22A . 22B and the door opener trap 11 moved back to the closed position.

How out 3 to 8th Further, the locking arrangement comprises 20 in the illustrated embodiment, within the housing 7 two tours 28 , in each of which a first ball 22A and a second ball 22B are linearly movable and rotatably guided. The guides 28 run perpendicular to the passage opening 26.1 the locking axle 24 and open at a predetermined distance in the through hole 26.1 , As in particular from 7 and 8th It can be seen that the two guides 28 and the through hole 26.1 in an axle guide component 26 introduced, which in the illustrated embodiment as part of the housing 7 is executed. How out 3 to 8th it can be seen further, the balls have 22A . 22B in the illustrated embodiment, the same diameter.

In an alternative embodiment, not shown, the locking device 3 assigns the first ball 22A a larger diameter than the second ball 22B on. Due to the different diameters of the two balls 22A . 22B , the smaller second ball can 22B in a smaller diameter portion of a stepped through hole than the larger first ball 22A be guided. As a result, the required space can be reduced. In addition, due to the larger diameter of the first ball 22A the guidance and support of the guide contour 16 the door opener trap 11 on the first ball 22A optimized or improved and adapted to the effective support force. Due to the smaller diameter of the second ball 22B Can the at least one recess 24.1a . 24.1B and the at least one blocking area 24.2a . 24.2b at the locking axis 24 be dimensioned smaller with the same functionality.

How out 3 to 6 can be further seen, the sliding element 42 in the illustrated embodiment, two recesses 44 on, which in each case a run-on slope 45 have, on which in each case the second ball 22B enters. Hereby the two second balls move 22B the sliding element 42 against the force of the return spring 46 , which are on a spring system 47 of the sliding element 42 and a second axle backup 26.3 the locking axle 24 supported, perpendicular to the direction of linear movement of the balls 22A . 22B , In addition, the recesses limit 44 the linear movements of the balls 22A . 22B , The respective first ball 22A rolls during linear motion on a guide contour 16 the door opener trap 11 , on the leadership 28 and on the respective second ball 22B from. Upon release of the door opener trap 11 shifts the force of the return spring 46 the sliding element 42 back to its starting position, causing the two balls 22A . 22B and the door opener trap 11 moved back to the closed position.

How out 3 to 6 can be seen further comprises the locking axis 24 two rounded first wells 24.1a and two first blocking areas 24.2a whose axial distance from the distance of the guides 28 equivalent. In the release state of the locking arrangement 20 The first two depressions are aligned 24.1a each with the corresponding leadership 28 so the first wells 24.1a in each case the corresponding second ball 22B at least partially. In the locked state of the locking arrangement 20 block the first two blocking areas 24.2a in each case the corresponding leadership 28 so the second balls 22B not from the corresponding first wells 24.1a the locking axle can be accommodated.

How out 7 and 8th is further apparent, is the door opener trap 11 in the illustrated embodiment as a rotary latch 13 executed, which about a rotation axis 15 rotatable in the housing 7 is stored. The rotation axis 15 is in corresponding axle guides (not shown) in the housing 7 stored. An action on the door opener trap 11 by the lock latch, not shown, takes place against the force of the return spring 46 of the sliding element 42 of the deadlock protection 40 ,

The two guides 28 are so in the case 7 or Achsführungsbauteil 26 arranged that the centers of the balls 22A . 22B above the axis of rotation 15 as a rotary latch 13 executed door opener trap 11 are arranged. How out 7 and 8th can be further seen, the guide contour 16 the door opener trap 11 at least one depression 16.1 on which the first balls 22A in the closed position of the door opener trap 11 at least partially absorbs. Here is the depression 16.1 the leadership contour 16 so on the rotary latch 13 arranged that bearing areas of the second balls 22B in the depression 16.1 above the axis of rotation 15 of the rotary latch 13 are arranged. How out 7 can be further seen, the guide contour is based 16 in the locked state of the latch assembly 20 when the door opener trap is acted upon 11 through the latch on the first balls 22A which is about the second balls 22B at the blocking areas 24.2a . 24.2b the locking axle 24 and at the leadership 28 in the case 7 support and the movement of the door opener trap 11 to block in the open position. How out 8th is further apparent, rolls in the release state of the locking assembly 20 the leadership contour 16 when the door opener trap is acted upon 11 through the latch on the first balls 22A off, leaving the door opener trap 11 the movement in the open position and the balls 22A . 22B in the direction of the locking axis 24 and sliding element 42 move.

The locking axle 24 is in the illustrated embodiment for selectively switching the locking assembly 20 between quiescent current version and working current version. Therefore, the lock axle points 24 on the circumference two second blocking areas 24.2b on which a circumferential distance of 180 ° to the first two blocking areas 24.2a and two second recesses 24.1B on which a circumferential distance of 180 ° to the first two recesses 24.1a respectively. Furthermore, the first two blocking areas 24.2a in each case at the level of the two second recesses 24.1B arranged, and the two second blocking areas 24.2b are each at the level of the first two wells 24.1a arranged. How out 3 to 5 can be further seen, sets the locking axis 24 in the illustrated second rotational position, the working current version for the locking arrangement 20 fixed, which the release state in the energized state of the electric actuator 30 occupies. That means that locking arrangement 20 In the illustrated de-energized state of the actuator has the locking state. In a not shown by 180 ° rotated first rotational position sets the locking axis 24 the quiescent current version for the locking arrangement 20 fixed, which the release state in the de-energized state of the electric actuator 30 occupies.

How out 3 to 6 is further apparent, is a first axle backup 26.2 in the passage opening 26.1 introduced and acts on the first free end of the locking axis 24 , The first axle backup 26.2 secures the locking axis 24 against rotation and allows axial movement of the locking axis 24 , In addition, a second axle lock fixes 26.3 , which with the housing 7 is bolted, the first axle backup 26.2 in the passage opening 26.1 , At the second free end is the locking axle 24 in the slide 29 rotatably guided, which of the electrically actuated actuator 30 can be acted upon axially. The slider 29 is in the illustrated embodiment from above radially to the second free end of the locking axis 24 fitted, wherein the second free end of the locking axis 24 has a circumferential groove into which a wall of a receptacle 29.1 in the slide 30 engages and on which the elastic sealing element 52 is deferred. The electrically operated actuator 30 acts against the force of a compression spring 34 on the slide 29 and is as an electromechanical solenoid 32 executed. Alternatively, the actuator can be designed as a piezoelectric actuator. In the illustrated embodiment, the locking arrangement 20 sets the locking axis 24 in the illustrated first rotational position, the working current version for the locking arrangement 20 firmly. When energizing the solenoid 32 of the actuator 30 via a connection terminal 36 becomes the slider 29 against the force of the compression spring 34 tightened and in the direction of solenoid 32 emotional. This shifts the slider 30 the locking axle 24 from the in 3 . 4 . 5 and 7 illustrated locking position in the in 8th shown release position.

If the locking device 3 or the locking arrangement 20 operated in the quiescent current version, so is the second axle backup 26.3 solved and the first axle backup 26.2 from the passage opening 26.1 taken. Then the locking axis 24 rotated by 180 °. Subsequently, the first axle backup 26.2 again in the passage opening 26.1 introduced and on the first end of the locking axis 24 attached. Subsequently, the second axle backup 26.3 again with the case 7 screwed. Since now the positions of the recesses and blocking areas are reversed, has the locking arrangement 20 with de-energized actuator 30 the locked state and with energized actuator 30 the release state.

In an alternative embodiment, not shown, the locking device 3 is only one as a through hole 28.1 executed leadership 28 in the case 7 arranged, in which only a ball 22A as a locking element 22 is guided linearly movable and rotatable. By using only one guide 28 between the door opener trap 11 and the locking axis 24 in connection with only one ball 22A , results in a particularly compact design of the locking device 3 ,

In another embodiment, not shown, the locking device 3 is also only one as a through hole 28.1 executed leadership 28 in the case 7 arranged, in which, however, two balls 22A . 22B as locking elements 22 are linearly movable and rotatably guided. By using only one guide 28 between the door opener trap 11 and the locking axis 24 in conjunction with two balls 22A . 22B larger distances can be bridged.

In a further embodiment, not shown, the locking device 3 are analogous to the described embodiment, two as through holes 28.1 guided tours 28 in the case 7 arranged, in which in each case only one ball 22A as a locking element 22 is guided linearly movable and rotatable. By using two balls 22A , each by a guide 28 between the door opener trap 11 and the locking axis 24 can be guided, the support and leadership of the door opener trap 11 be improved in an advantageous manner. In addition, there is an improved power transmission in a compact design of the locking device 3 ,

Embodiments of the invention electrically switchable locking device 3 are preferably used as a door opener in a door system with at least one door leaf.

LIST OF REFERENCE NUMBERS

1

stulp

2

Recess (lock bolt)

3

locking device

5

recess

7

casing

9

cover

11

strike latch

13

Spagnolet

15

axis of rotation

16

guide contour

16.1

deepening

20

lock assembly

22

locking element

22A

first ball

22B

second ball

24

Locking axle (adjusting axle)

24.1A, 24.1B

deepening

24.2a. 24.2b

blocking region

26

Achsführungsbauteil

26.1

Through opening

26.2

first axle backup

26.3

second axle securing

28

guide

28.1

Through opening

29

pusher

29.1

admission

30

actuator

32

electric lifting magnet

34

compression spring

36

terminal

40

Verklemmungsschutz

42

push item

44

recess

45

starting slope

46

Return spring

47

suspension system

50

damping device

52

damping element

Claims (18)

Electrically switchable locking device (3) for a door system, comprising a housing (7), a door latch latch (11) cooperating with a latch, which is movable between a closed position and an open position, an electrically actuable actuator (30) and a latch between the door latch ( 11) and the actuator (30) arranged locking arrangement (20), which switches the actuator (30) between a locking state and a release state, wherein the door latch (11) in the closed position in the locking state of the locking assembly (20) against movement into the open position is locked and released in the release state of the locking arrangement (20) for movement into the open position, wherein the locking arrangement (20) within the housing (7) at least one in a guide (28) linearly movable ball (22A, 22B) as a locking element ( 22) and one in a Durchgangsöffnu ng (26.1) guided locking axis (24), which the actuator (30) via a slider (29) between a locking position, which corresponds to the locking state of the locking assembly (20), and a release position, which the release state of the locking assembly (20) wherein the guide (28) of the at least one ball (22A, 22B) extends between the door release latch (11) and the locking axle (24) and opens into the passage opening (26.1) of the locking axle (24), the locking axle (24) blocked in the locking position, the linear movement of the at least one ball (22A, 22B) and the movement of the door latch (11) and releases in the release position, characterized in that - the locking arrangement (20) has a damping device (50) with at least one elastic damping element ( 52), which on the locking axis (24) transferable mechanical vibrations and / o dampens the vibrations, - the at least one elastic damping element (52) is arranged at least at one end of the locking axis (24) axially between the locking axis (24) and a receptacle of the locking axis (24) and - the at least one elastic damping element (52) between the locking axis (24) and the slide (29) and / or between the locking axis and a first anti-rotation device (26.2) is arranged. Locking device (3) after Claim 1 , characterized in that the locking axis (24) has at its ends a smaller diameter, on which the at least one damping element (52) is pushed. Locking device (3) according to one of the preceding claims, characterized in that the at least one damping element (52) is designed as a round and / or square perforated disc. Locking device (3) according to one of the preceding claims, characterized in that the locking arrangement (20) comprises a clamping protection (40) with a parallel to the locking axis (24) arranged spring-loaded sliding element (42) having at least one recess (44), in which the at least one ball (22A, 22B) enters in the release state of the locking arrangement when acted upon by the door opener latch (11) and displaces the sliding element (42) against the force of a return spring (46), the sliding element (42) releasing the door opener latch (42) 11) the at least one Ball (22A, 22B) and the door latch (11) moves back to the closed position. Locking device (3) after Claim 4 , characterized in that the at least one recess (44) has a run-on slope (45) at which the at least one ball (22A, 22B) enters, wherein the at least one ball (22A, 22B) the sliding element (42) perpendicular to the direction the linear movement of the at least one ball (22A, 22B) shifts, the at least one recess (44) limits the linear movement of the at least one ball (22A, 22B). Locking device (3) according to one of the preceding claims, characterized in that the at least one ball (22A, 22B) during the linear movement on a guide contour (16) of the door latch (11) and on the guide (28) rolls. Locking device (3) according to one of the preceding claims, characterized in that the locking axis (24) on the circumference at least a first recess (24.1A), which in the release state of the locking arrangement (20) is aligned with the guide (28), wherein the at least one Ball (22A, 22B) at least partially by the at least one first recess (24.1 A) is receivable, and at least one first blocking region (24.2A), which blocks the guide (28) in the locking state of the locking arrangement (20). Locking device (3) according to one of the preceding claims, characterized in that the door opener latch (11) designed as a rotary latch (13) and about a rotational axis (15) rotatably mounted in the housing (7). Locking device (3) after Claim 8 , characterized in that the guide (28) is arranged in the housing (7), that a center of the at least one ball (22A, 22B) above the axis of rotation (15) of the rotary latch (13) designed door release latch (11) is arranged , Locking device (3) according to one of the preceding claims, characterized in that the guide contour (16) of the door opener latch (11) has at least one recess (16.1) which at least partially accommodates the first ball (22A) in the closed position of the door opener latch (11) , Locking device (3) after Claim 10 , characterized in that the recess (16.1) of the guide contour (16) in the case of the rotary latch (13) executed door release latch (11) is arranged so that a contact region of the at least one ball (22A, 22B) in the recess (16.1) above the axis of rotation (15) of the door latch as a rotary latch (13) running (11) is arranged. Locking device (3) after Claim 11 , characterized in that in the locking state of the locking arrangement (20), the guide contour (16) upon actuation of the door latch (11) by the latch on the at least one ball (22A, 22B) is supported, which at the blocking area (24.2A, 24.2 B) of the locking axle (24) and on the guide (28) in the housing (7) and blocks the movement of the door opener latch (11) in the open position. Locking device (3) according to one of Claims 10 to 12 , characterized in that in the release state of the locking arrangement (20), the guide contour (16) upon actuation of the door latch (11) by the latch on the at least one ball (22A, 22B) rolls, so that the door latch (11A, 11B) performs the movement in the open position and moves the at least one ball (22A, 22B) in the direction of locking axis (24) and sliding element (42). Locking device (3) according to one of the preceding claims, characterized in that the guide (28) is designed as a passage opening (28.1) in the housing (7) whose dimensions are adapted to a diameter of the at least one ball (22A, 22B). Locking device (3) according to one of the preceding claims, characterized in that the locking arrangement (20) has two guides (28) in which at least one ball (22A, 22B) is guided in a linearly movable and rotatable manner, wherein the guides (28) with a predeterminable distance into the passage opening (26.1) of the locking axis (24) open, which has two first recesses (24.1A) and two first blocking regions (24.2A) whose axial distance corresponds to the distance of the guides (28), wherein the sliding element (42) has two recesses (44) for guided in the respective guide (28) guided at least one ball (22A, 22B). Locking device (3) according to one of the preceding claims, characterized in that two balls (22A, 22B) in at least one guide (28) summarized linearly movable are, wherein acted upon by the latch latch door (11) during the movement in the open position, the linear movement of the two balls (22A, 22B) causes, in which a first ball (22A) on a guide contour (16) of the door latch (11) and on a second ball (22B), wherein the second ball (22B) enters a corresponding recess (44) of the sliding element (42) and the sliding element (42) against the force of the return spring (46) shifts, and wherein the sliding element ( 42) upon release of the door opener latch (11) moves the two ball (22A, 22B) and the door opener latch (11) back into the closed position. Locking device (3) according to one of the preceding claims, characterized in that the locking axis (24) is designed for selectively switching the locking arrangement (20) between closed-circuit design and working current version and at the periphery at least a second blocking region (24.2B), which has a circumferential distance of 180 ° to the at least one first blocking region (24.2A), and at least one second recess (24.1B) which has a distance of 180 ° to the at least one first recess (24.1A), wherein the locking axis (24) in a first rotational position determines the quiescent current execution for the locking arrangement (20), which occupies the release state in the de-energized state of the electric actuator (30), and in a rotated by 180 ° second rotational position the working current version for the locking arrangement (20) determines which the release state in the energized State of electrical St ellantriebs (30) occupies. Door system with at least one door leaf and an electrically switchable locking device (3), which is used as a door opener, characterized in that the electrically switchable locking device (3) according to one of Claims 1 to 17 is executed.

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