DE102022106474A1 - Device for locking a door leaf - Google Patents

Abstract

The present application relates to a device (1) for locking a door leaf (2) relative to a door frame, comprising a housing (3), an upper locking unit (4) for locking the door leaf (2) at its upper end, a lower locking unit ( 5) for locking the door leaf (2) at its lower end, a coupling unit (6) for kinematically coupling the two locking units (4, 5), a locking cylinder (7) and a transmission unit (8), the locking units (4, 5 ) each comprise a locking element (9, 10), the locking units (4, 5) being coupled to one another by means of the coupling unit (6), the locking cylinder (7) being manually operable, the movement of the functional element (11) being carried out by means of the transmission unit (8) can be transferred to one of the locking units (4, 5), so that at least one of the locking units (4, 5) can be moved from its respective locking position to its respective unlocking position by actuating the locking cylinder (7). According to the invention, the coupling unit (6) comprises a coupling element (12) and two reversing elements (13, 14) cooperating with the coupling element (12), the movement of the functional element (11) being transferable to at least one of the reversing elements (13) by means of the transmission unit (8) in such a way that the reversing element (13) can be moved translationally relative to the housing (3) as a result of an actuation of the locking cylinder (7).

Description

The present application relates to a device for locking a door leaf relative to a door frame according to the preamble of claim 1. Furthermore, the present application relates to a door according to the preamble of claim 12.

The device comprises a housing and two locking units, by means of which the door leaf can be locked relative to the door frame. The housing can be a dedicated housing in which the remaining parts of the device are arranged. It is also conceivable that the housing is formed by a vertical profile of a door into which the device is installed. Preferably, an upper locking unit is arranged at an upper end of the device and a lower locking unit is arranged at a lower end of the device. The device further comprises a coupling unit by means of which the two locking units are kinematically coupled. This is expressed in the fact that a transfer of one of the locking units from a locking position to an unlocking position causes a similar transfer of the other locking unit. The locking position of a respective locking unit is characterized in that the locking unit is set up to interact with a corresponding locking element and thereby lock the door leaf relative to the door frame. The locking units each comprise at least one locking element, which can in particular be designed in the form of an elongated bolt.

Furthermore, the device comprises a lock cylinder which is suitable for interacting with a coded key. By means of this, the locking cylinder can be operated manually, whereby a functional element of the locking cylinder can be moved between a closed position and an open position. The locking cylinder can in particular be a commercially available locking cylinder.

Finally, the device comprises a transmission unit by means of which the movement of the functional element can be transmitted directly or indirectly to at least one of the locking units. In this way, the device is set up so that at least one of the locking units can be moved from its respective locking position into its respective unlocking position by actuating the locking cylinder. Since the locking units are coupled to one another by means of the coupling unit as described above, this transfer of one of the locking units has a similar effect

Transferring the other locking unit. This can be done with a time delay or, preferably, synchronously.

A door that includes a door leaf with such a device has at least two closing elements that are designed to interact with the locking elements of the locking units of the device, typically to form a positive lock. Here, the locking elements can engage in corresponding recesses in the closing elements and produce the positive locking described. In this way, the respective door leaf is locked relative to a door frame of the door, so that it cannot be opened in the intended manner. In the case of an automatic door, the engagement of at least one closing element with a respective locking element can be carried out automatically using an electrical locking device. It is particularly conceivable here that the locking device has an electric motor, by means of which a locking element can be moved relative to the door leaf and thereby brought into engagement with a locking element of the device.

State of the art

A device of the type described above is already known in the prior art. For this purpose refer to the German disclosure document DE 10 2021 101 448 A1 pointed out. This describes a device that can be alternately locked and unlocked manually using a key, so that an associated door leaf on which the device is installed is locked or unlocked relative to a door frame. The device comprises two locking units, each of which has a locking element. These locking elements, which are formed by elongated bolts, are oriented parallel to one another and can each be transferred between a retracted position and an extended position. The locking units are kinematically coupled by means of a coupling unit in such a way that the locking units can be moved synchronously between a locking position and an unlocking position. Here, a functional element of the lock cylinder engages in a form-fitting manner with a transmission unit, which is part of the coupling unit. In this way it is achieved that in the course of an actuation of the locking cylinder, which results in a movement of the functional element, said movement is transmitted to the locking units by means of the transmission unit. As a result, the locking elements are retracted or extended. In order to achieve a similar movement of the locking elements, the coupling unit has a reversing element which is formed by a crank disk that can be rotated about an axis of rotation. Using the reversal element A movement of one locking element can be transmitted in a reverse manner to the other locking element, so that the locking elements retract synchronously, that is, move towards one another, or extend synchronously, that is, move away from one another.

As an alternative to a manually operable device shown in the prior art described above, automatic locking systems are known. These are set up to automatically lock or unlock a respective door leaf relative to the associated door frame. It is known here that a motor-driven closing element of an electric locking device is moved relative to the door leaf and, in the course of this movement, engages with a locking element of the respective device, which is arranged on the same for locking the door leaf. Conversely, the door leaf is automatically locked and unlocked in reverse. Here, the closing element is moved by a motor in such a way that the engagement with the locking element is canceled, so that the door leaf can now be moved as intended relative to the door frame.

Manually operated devices are disadvantageous in that they do not allow integration into a locking system that works automatically. It is therefore necessary to always lock or, conversely, unlock the respective door leaf manually. Doors whose door leaves can be locked automatically are nevertheless disadvantageous in that they cannot be easily unlocked in the event of a malfunction in the respective drive or, for example, a power failure. It is therefore necessary for unlocking that the closing element is moved by a motor relative to the locking element in order to thereby release the door leaf. In the presence of a drive malfunction or in the absence of electrical power, such movement is prevented, requiring manual intervention. For this it is typically necessary to manually access the respective drive, which is typically installed in the door frame of the respective door. This involves a lot of effort and is correspondingly disadvantageous.

Task

The present application is therefore based on the task of simplifying the operation of an automatically lockable door.

Solution

The underlying object is achieved according to the invention by means of a device with the features of claim 1. Required configurations result from the associated subclaims.

The device is characterized in that the coupling unit comprises a coupling element and two reversing elements that interact with the coupling element. One of the reversing elements is assigned to one of the locking units. In particular, the reversing elements can engage in a form-fitting manner with a corresponding form-fitting partner of the respective locking unit. Furthermore, the coupling unit is set up to transmit a movement of one of the locking units to the coupling element by means of the reversing element assigned to the respective locking unit and to transmit the resulting movement of the coupling element to the locking unit assigned to it by means of the other reversing element. In this transmission, the kinematic coupling of the two locking units using the coupling unit can be seen in the device according to the invention.

In particular, a movement of at least part of a locking unit, in particular a movement of its locking element, can be transmitted to the coupling element by means of the reversing element assigned to the locking unit, wherein preferably a direction of movement of the respective part of the locking unit is transmitted in the opposite manner to the coupling element by means of the reversing element. For example, it is conceivable that a part of the upper locking unit is moved downwards in the direction of the locking cylinder, whereby the coupling element is moved upwards in the opposite direction as a result of the effect of the reversing element. Due to the interaction of the coupling element with the second reversing element, which in this example is assigned to the lower locking unit, this upward movement of the coupling element is in turn transmitted in reverse to the lower locking unit by means of the second reversing element, whereby at least part of the lower locking unit, in particular its locking element, is in is moved downwards in a direction facing away from the locking cylinder. The “double reversal” achieved in this way can be used to ensure that the locking elements of the two locking units move similarly in a common direction relative to the housing.

The device is further characterized in that the transmission unit is set up to transmit the movement of the functional element to at least one of the reversing elements. This is done in such a way that the reversing element is translationally movable relative to the housing as a result of an actuation of the locking cylinder. In particular, the movement can be The transmission of the functional element, which results from the actuation of the locking cylinder, is transferred to the transmission unit and finally to the reversing element by means of the transmission unit. This mechanism causes the respective reversing element as such to be moved translationally relative to the housing, with a similar movement of these two components taking place as a result of the interaction of the reversing element with the coupling element and with the respective locking unit. It is preferably provided here that the mechanism of reversal that the reversal element typically brings about does not take place, ie the parts that interact with the reversal element, namely both a part of the respective locking unit and the coupling element, follow the translational movement of the reversal element.

For example, the reversing element assigned to the upper locking unit can be moved translationally in a direction towards the locking cylinder by means of the transmission unit as a result of an actuation of the locking cylinder. As a result, at least part of the locking unit assigned to the reversing element, in particular its locking element, is also moved translationally towards the lock cylinder. This movement can be equivalent to a “retraction” of the locking element, whereby it can lose its positive engagement with a locking element. The upper locking unit is then in its unlocking position. At the same time, the coupling element, which is connected to the reversing element, is also moved translationally in the same way due to this connection, following the translational movement of the reversing element. The movements of at least the respective part of the locking unit and the coupling element therefore take place in the same direction, i.e. without a reversal by the reversing element. The movement of the coupling element can then in turn be transmitted to at least part of the locking unit, in particular its locking element, by means of the other reversing element, which is assigned to the lower locking unit, with a direction of movement of the coupling element being reversed to the lower locking unit by means of the second reversing element. In relation to the example described, it is therefore particularly conceivable that the downward movement of the reversing element cooperating with the transmission unit in the direction of the locking cylinder leads to an equally downward movement of the coupling element and, under the action of the other reversing element, ultimately to an oppositely upward movement ( that is, in the direction of the locking cylinder) at least part of the lower locking unit is transmitted. In this way, it is possible to move the locking elements in the locking units in opposite directions to one another and thereby “retract” them in the same way, which in turn resolves any engagement of the locking elements with corresponding locking elements. The locking units are then in their respective unlocking positions.

The device according to the invention has many advantages. The device thus enables a combination of manual unlocking of a respective door leaf with an automated locking system for the respective door. Thus, at least one closing element can be driven by a motor and can enter into positive engagement (locking) or cancel it (unlocking) with at least one locking element of one of the locking units. The resulting ease of use for such a door is therefore guaranteed. In the event that it is not possible to transfer the door from a locked state to an unlocked state, be it due to a technical error in the electrical locking device, a power failure or the like, manual unlocking can now be carried out using the device according to the invention To carry it out, all that is required is a key that matches the locking cylinder. In this case, it is particularly possible to arrange the locking cylinder in the middle of the door in terms of height, so that it can be easily reached without a user of the door having to bend down towards a locking cylinder arranged at foot height or stretch towards a locking cylinder arranged at head height. By actuating the locking cylinder, the locking units can be transferred from their respective locking position to their respective unlocking position as desired through the interaction of the transmission unit with the coupling unit.

In a preferred embodiment, the reversing elements are formed by gears, each of which is rotatably mounted on axes of rotation. As a result, the reversing elements are suitable for meshing with respectively assigned parts of the coupling element and the respective locking unit and in this way transmitting movements of the respective parts relative to one another. In particular, the reversing elements in this embodiment are particularly well suited to transferring a movement of a respective contact partner, for example a part of a respective locking unit, inversely to the other contact partner, in particular the coupling element. In this way, it is particularly easy to move, for example, a locking element of a locking unit, which is directed in a first direction, in the opposite way towards the coupling element transferred, which then moves in a direction opposite to the locking element.

Furthermore, it is particularly advantageous if at least one of the locking units can assume three different positions, namely a receiving position in addition to the locking position and the unlocking position. This can be particularly useful for the upper locking unit, since it can interact particularly easily with a motor-driven locking element, which is arranged as part of an electrical locking device in an upper part of a respective door frame. In the receiving position, the locking element of the locking unit is extended in such a way that it protrudes beyond an upper end of the housing of the device and beyond an upper end of the door leaf equipped with the device and is designed to be gripped by the closing element of a respective locking device, in particular in a form-fitting manner to become. In the course of the automated closing of the door, the closing element is moved downwards by a motor and grips the extended locking element. As a result, the locking unit is transferred from its receiving position into its locking position, with preferably a part of the locking unit, in particular the locking element itself or a separate switching element, being pushed a little way into the housing by means of the locking element. This movement can be used to transfer the other locking unit, which can in particular be the lower locking unit, from its unlocking position to its locking position. It is therefore particularly easy to transfer the movement of the respective part of the locking unit, which is driven as a result of the interaction with the closing element, to the lower locking unit in the manner described above by means of the coupling unit and to effect a similar movement of the associated locking element.

Using the example of the upper locking unit, which interacts with the locking element of the automatic locking device, the respective part of the locking unit, for example its locking element or a switching element, is pressed by the locking element in the direction of the locking cylinder. This movement is translated by means of the reversing element into an opposite movement of the coupling element, which moves correspondingly upwards, that is towards an upper end of the housing. This movement of the coupling element is in turn translated by means of the other reversing element into a downward movement of at least part of the lower locking unit, in particular of its locking element, directed away from the locking cylinder. In this way, the locking element of the lower locking unit can in turn engage in a locking element, which is present, for example, in the form of a receptacle which is formed in a door frame assigned to the door leaf. Both locking elements then engage with a locking element, so that the locking units are in their locking positions.

To transfer the locking units into their unlocking positions, it is possible in the manner described to actuate the locking cylinder and in this way to move one of the reversing elements translationally relative to the housing, in particular in the direction of the locking cylinder. For example, the transmission unit can be designed in such a way that the reversing element, which is assigned to the upper locking unit, is moved in the direction of the locking cylinder, whereby, as a result of the positive coupling of the reversing element, both with the coupling element and with at least part of the locking unit, a similar translational Movement of these two parts takes place. It makes sense that at least the locking element of the upper locking unit is moved translationally towards the locking cylinder, so that it loses its positive engagement with the locking element without the locking element having to move as such. The downward movement of the coupling element is in turn translated into an opposite movement of at least part of the lower locking unit, in particular its locking element, by means of the second reversing element, which cooperates with the lower locking unit. This allows the locking element of the lower locking unit to be moved upwards and therefore towards the locking cylinder. Here, the locking element loses its engagement with the associated locking element. Therefore, both locking units are now in their respective unlocking positions, so that the door leaf can be moved relative to the door frame as intended.

In a particularly advantageous embodiment, at least one of the locking units cooperates with a spring which is braced at one of its ends against the respective locking unit and at its other end against a stop. The spring is preferably designed as a compression spring. Both locking units preferably each work together with a spring. The spring is advantageously pretensioned, preferably in such a way that the spring exerts an upward force on at least a part of the respective associated locking unit.

If one of the locking units, in particular the upper locking unit, can be moved into a receiving position, it is particularly advantageous if this locking unit interacts with a pre-tensioned spring which strives to hold the locking element means to keep it in its receiving position or to transfer it there. This has the advantage that when a respective locking device is operated as intended, the locking unit is automatically returned to its receiving position when the engagement with the locking element of the locking device no longer occurs.

If at least one spring is used, it can also be advantageous if the associated stop, against which the spring is supported, can be moved translationally to the housing in a similar way to the at least one reversing element, which can be moved translationally relative to the housing by means of the transmission unit when the lock cylinder is activated. In this way, the stop can “move along” with the reversing element, so that the reversing element and the stop do not move relative to one another. In this embodiment, it is particularly advantageous if the locking unit as a whole is moved with the reversing element, so that the translational movement of the reversing element does not change a tension state of the spring and in particular the spring does not make the movement of the reversing element and/or the locking unit more difficult.

If both locking units each interact with a spring, it can be particularly advantageous if a clamping force with which one of the springs is preloaded exceeds the clamping force with which the other spring is preloaded. Preferably, the tension force of one spring exceeds the tension force of the other spring by at least 50%, preferably at least 75%, more preferably at least 100%. In particular, the spring can be biased with a lower tension force, which is assigned to the locking unit, the associated reversing element of which can be moved in translation by means of the transmission unit as a result of a movement of the functional element of the locking cylinder. The other spring can in particular cooperate with a stop which is designed to be stationary relative to the housing, the spring being able to indirectly support a movement of the reversing element as a result of the actuation of the locking cylinder. In particular, it is conceivable that the stronger spring is assigned to the lower locking unit, the locking element of which is retracted as a result of the actuation of the locking cylinder and thereby loses its engagement with the locking element corresponding to it. The spring is preferably biased in such a way that this movement is supported, that is to say the spring at least indirectly exerts an upward force on the locking element. The force of the spring is in line with the movement desired as a result of the actuation of the locking cylinder and supports this movement accordingly. This reduces mechanical resistance for starting the mechanism of the device when the locking cylinder is actuated, which makes it particularly easy for the user of the device to manually operate the locking cylinder using a key.

As already explained above, it can also be particularly advantageous if at least one of the reversing elements, preferably both reversing elements, is formed by a rotatably mounted gear. In this way, the kinematic coupling of the respective locking unit with the coupling element can be produced particularly easily, and the desired reversal of the movement of a respective part of the locking unit compared to the movement of the coupling element can also be carried out particularly easily. For this purpose, it is furthermore preferable if both the coupling element and the locking unit interacting with the respective reversing element each comprise a toothed strip which meshes with the reversing element. In this way, it is particularly easy to establish a positive connection between the coupling unit and the locking units and between the reversing elements and the coupling element. It is understood that during a translational movement of a respective reversing element as a result of the actuation of the locking cylinder, the toothed strips meshing with the respective reversing element are “taken along”, so that the translational movement of the reversing element causes the same translational movement of at least part of the locking unit assigned to the reversing element, if necessary . the entire locking unit and the coupling element.

In a particularly advantageous embodiment, the device comprises a stroke increase, by means of which a stroke of the coupling element can be transferred to at least one of the locking units in an increased amount. Such an increase in stroke is particularly advantageous in order to move at least one locking element of a respective locking unit by a greater distance than a movement of the coupling element in the course of a transfer of the locking unit between its locking position and its unlocking position. In this way, it is possible, in particular, to translate a comparatively small movement of a locking element of a first locking unit, which results as a result of its engagement with a motor-driven locking element, into a larger movement of the locking element of the other locking unit. With an exemplary translation of at least 1:1.5, which is preferably brought about at least by increasing the stroke, more preferably at least 1:2.5, a movement of a locking element of a locking unit can thus occur (in particular the upper locking unit) by, for example, 1 cm by means of the coupling unit to the other locking unit (in particular the lower locking unit), whereby, due to the effect of the stroke increase, a path along which the other locking element moves is, for example, 3 cm. In this way, in particular, a transfer of the locking units into their respective locking position can create a locking of the door leaf relative to the respective door frame, which is particularly protected against forcible opening of the door. In other words, increasing the stroke can provide greater security against the door being broken into or other unauthorized access.

Furthermore, increasing the stroke can be particularly advantageous in cases in which the door leaf is formed by a sliding door leaf of a sliding door. Such a door leaf is typically mounted in a floor guide at its lower end. A locking element of a lower locking unit that is not retracted far enough into a door leaf would collide with the floor guide when the door leaf is opened, with the result that the door leaf cannot be opened completely. By increasing the stroke, however, it can be ensured that the “retraction movement” of the locking element, i.e. its movement towards the locking cylinder, is of such an amount that the locking element is retracted far enough to avoid a collision with the floor guide. In other words, the locking element is retracted so far that a lower end of the locking element is at a height above the floor guide. Accordingly, the door leaf can be opened further since there is no collision between the locking element and the floor guide, which in turn means that a clear opening of the door leaf of the sliding door in its open position is larger than if the door leaf could not be opened completely. This difference is particularly important in retrofitting situations in which a certain amount of clear opening must be maintained in order to meet the requirements for escape routes or the like.

If at least one of the reversing elements is formed by a gear, it can be particularly advantageous if the stroke increase is formed on such a reversing element. For this purpose, the reversing element can in particular have two coaxially arranged toothed disks which have different diameters. For example, it is conceivable that the diameter of a first toothed disk, which meshes with a toothed strip of the coupling element, is smaller than the diameter of a second toothed disk, which meshes with a toothed strip of the locking unit assigned to the reversing element. The transmission ratio between the movement of the coupling element and the movement of the respective part of the locking unit can be adjusted particularly easily via the diameters of the two toothed disks relative to one another.

Further developing the device according to the invention, the transmission unit comprises a translation element which is pivotably mounted about a pivot axis and which can be transferred directly or indirectly between a first and a second pivot position by means of the functional element. This configuration is particularly advantageous if the functional element of the locking cylinder is moved in a circular path when the locking cylinder is actuated, as is common with most locking cylinders. In particular, when the locking cylinder is transferred from its closed position to its open position, the functional element can be moved along an arc of a circle in an angular range of at least 135°, preferably at least 150°, more preferably 180°. This movement of the functional element can be translated at least indirectly by means of the translation element. In particular, the translation element can cooperate with a transmission rod of the transmission unit, which is guided along a linear axis as a result of the pivoting of the translation element about the pivot axis. In this way, through the interaction of the locking cylinder with the translation element, the movement of the functional element can be translated into a linear movement of the transmission rod. The translation of the movement of the functional element by means of the translation element can in particular contribute to the fact that a force that has to be applied manually using a key to transfer the locking cylinder between its closed position and its open position remains so low that the locking cylinder can be easily operated. This also reduces the risk of the respective key bending or, in the worst case, breaking off.

If the translation element described above is present, it can also be particularly advantageous if the transmission unit has a transmission element that interacts directly with the functional element. The transmission element is designed to be displaced by the functional element during the actuation of the locking cylinder and thereby to be moved translationally relative to the housing. Furthermore, the transmission element is positively connected to the translation element, whereby the translation element can be pivoted about its pivot axis in a guided manner. In particular, a channel can be formed in the transmission element, in particular in the form of a Milling in which a pin connected to the translation element is guided in a form-fitting manner. In this embodiment, the movement of the functional element leads to the translational movement of the transmission element, which brings about the pivoting movement of the latter as a result of the positive connection with the translation element. According to the above explanation, it is particularly advantageous if the pivoting movement of the translation element is transmitted to a transmission rod, which then moves translationally relative to the housing and thereby indirectly or directly “drags” the reversing element translationally relative to the housing in the desired manner.

The underlying object is further achieved according to the invention by means of a door with the features of claim 12. This door, which can in particular be designed in the form of an automatic door, comprises at least one door leaf and an electrical locking device. The door leaf can in particular be designed as a pivoting leaf, a sliding leaf or as part of a revolving door. In any case, the door leaf cooperates with a device which is designed to lock the door leaf relative to a door frame of the door according to the above description. The locking device comprises an electric drive, by means of which a closing element of the locking device can be moved. In this way, the closing element can be transferred between a closed state and an open state. When the closing element is in its closed state, the closing element engages in a form-fitting manner with a locking element of a locking unit of the device, whereby movement of the door leaf relative to the door frame is blocked. In other words, the door leaf is locked in this state. Accordingly, the locking element is in such a position for engagement with the closing element that it can be gripped by the closing element. In particular, it is provided that the locking element protrudes beyond an upper end of the door leaf facing the locking device. If the closing element is in its open state, it releases the locking element so that the door leaf can be moved relative to the door frame.

The door according to the invention can be implemented particularly easily using a device according to the invention according to the above description. The resulting advantages have already been explained above. In particular, it is possible to lock the door leaf automatically so that movement relative to the door frame is blocked. Automated unlocking is also possible. In the event that there is a defect that prevents the locking device from operating, the door leaf can be unlocked manually, with the locking units being transferred from their respective locking position to their respective unlocking position. In the manner described, this can be done manually using a key that is inserted and rotated into the lock cylinder of the device. The mechanics of the device that are set in motion are explained above. The door is therefore advantageous in that it can be unlocked particularly easily even if the electrical locking device is defective if the worst comes to the worst. In particular, no access to the locking device is required for this, as is usually the case in the prior art.

The door according to the invention is of particular advantage if it provides at least a second closing element, preferably on the door frame, which is set up for positive engagement with a locking element of the second locking unit of the device. The closing element can in particular be designed in the form of a receptacle. In this way, the door leaf can be blocked particularly securely relative to the door frame, since the locking elements of both locking units each engage in a form-fitting manner with associated locking elements and thereby lock the door leaf relative to the door frame.

Furthermore, a particularly preferred embodiment is one in which the closing element of the electrical locking device is moved towards the door leaf in the course of its actuation, which is intended to lead to a locking of the door leaf, and in this case a locking element of a locking unit engages in a form-fitting manner. Here, the respective locking unit to which the locking element belongs can in particular be in a receiving position in which the locking element of the locking unit is extended to such an extent that the closing element of the locking device can grip it as intended.

It is furthermore particularly advantageous if the locking element is “pushed” at least a little towards the housing of the device in the course of engagement with the closing element, that is, it retracts a little into the housing. According to the above explanation, this movement of the locking element via the coupling unit causes a corresponding movement of the locking element of the other locking unit, which is oriented in the same direction as the movement of the locking element cooperating with the closing element. This can cause the second locking element to be “extended” and thereby engage in a form-fitting manner with a locking element, while at the same time the first locking element with the electrically driven locking element of the electric locking device is taken. In this way, the door leaf can be fixed relative to the door frame at least essentially simultaneously by means of both locking units and thereby locked.

In a particularly advantageous embodiment of the door, the door leaf is formed by a sliding door leaf, the door comprising a floor guide for guiding the door leaf, the device having a stroke increaser which interacts directly or indirectly with a locking element of a lower locking unit, so that the locking element is in the train a transfer of the locking unit from its locking position into its unlocking position under the effect of the stroke increase in the direction of a locking cylinder of the device can be raised in such a way that a lower end of the locking unit is at a height above the floor guide when the locking unit is in its unlocking position. According to the explanation above, this configuration has the advantage that there is no collision between the locking element of the lower locking unit and the floor guide when the door leaf is opened, since the locking element, so to speak, moves over the floor guide. As a result, the door leaf can be opened completely and thereby completely reveal a clear width of the door.

Examples of embodiments

• 1: Eine Prinzipskizze einer erfindungsgemäßen Vorrichtung, wobei sich eine obere Riegeleinheit in einer Empfangsstellung befindet,
• 2: Die Prinzipskizze gemäß 1, wobei sich zwei Riegeleinheiten jeweils in ihrer Verriegelstellung befinden,
• 3: Die Prinzipskizze gemäß 1, wobei sich beide Riegeleinheiten in ihrer Entriegelstellung befinden,
• 4: Ein vertikaler Längsschnitt durch eine erfindungsgemäße Vorrichtung, deren obere Riegeleinheit sich in einer Empfangsstellung befindet,
• 5: Die Vorrichtung gemäß 4, wobei sich die obere Riegeleinheit und eine untere Riegeleinheit jeweils in ihrer Verriegelstellung befinden,
• 6: Die Vorrichtung gemäß 4, wobei sich beide Riegeleinheiten jeweils in ihrer Entriegelstellung befinden,
• 7: Ein vertikaler Längsschnitt durch eine weitere erfindungsgemäße Vorrichtung, deren obere Riegeleinheit sich in einer Empfangsstellung befindet,
• 8: Die Vorrichtung gemäß 7, wobei sich die obere Riegeleinheit und die untere Riegeleinheit jeweils in ihrer Verriegelstellung befinden,
• 9: Die Vorrichtung gemäß 7, wobei sich beide Riegeleinheiten jeweils in ihrer Entriegelstellung befinden,
• 10: Ein Detail eines Türflügels, der mittels einer Bodenführung geführt ist.

The invention is explained in more detail below using an exemplary embodiment which is shown in the figures. It shows:

• 1 : A schematic sketch of a device according to the invention, with an upper locking unit in a receiving position,
• 2 : The basic sketch according to 1 , with two locking units each in their locking position,
• 3 : The basic sketch according to 1 , with both locking units in their unlocking position,
• 4 : A vertical longitudinal section through a device according to the invention, the upper locking unit of which is in a receiving position,
• 5 : The device according to 4 , whereby the upper locking unit and a lower locking unit are each in their locking position,
• 6 : The device according to 4 , with both locking units in their unlocking position,
• 7 : A vertical longitudinal section through a further device according to the invention, the upper locking unit of which is in a receiving position,
• 8th : The device according to 7 , whereby the upper locking unit and the lower locking unit are each in their locking position,
• 9 : The device according to 7 , with both locking units in their unlocking position,
• 10 : A detail of a door leaf that is guided by a floor guide.

A device 1 according to the invention is initially based on an idealized schematic representation according to 1 until 3 explained. Two possible concrete embodiments of devices 1 according to the invention are then: 4 until 6 as well as the 7 until 9 refer to.

The device 1, which is suitable for interaction with a door leaf 2, not shown here, comprises a housing 3, within which an upper locking unit 4 and a lower locking unit 5 are mounted. The locking units 4, 5 each include a locking element 9, 10, which can be moved translationally relative to the housing 3. The locking elements 9, 10 are each formed by elongated bolts which are oriented parallel to one another. Furthermore, the locking elements 9, 10 can be moved in the same way relative to the housing 3, in particular parallel to one another, particularly preferably along a common axis. The locking units 4, 5 are kinematically coupled to one another by means of a coupling unit 6. For this purpose, the coupling unit 6 comprises two reversing elements 13, 14 and a coupling element 12. The reversing elements 13, 14 are assigned to the locking units 4, 5, with one reversing element 13, 14 each interacting with one of the locking units 4, 5. In addition, the reversing elements 13, 14 are connected to one another by means of the coupling element 12. In the example shown, the reversing elements 13, 14 are each formed by gears which are rotatably mounted about axes of rotation 31, 32. Here, the reversing element 13, which is assigned to the upper locking unit 4, is mounted on a transmission unit 8, which is rod-shaped in the example shown. The transmission unit 8 is movable in translation relative to the housing 3 and cooperates with a locking cylinder 7, which can be operated manually using a key, not shown. Accordingly, the lock cylinder 7 has a recess into which a correspondingly coded key can be received in a form-fitting manner. By actuating the locking cylinder 7, the transmission unit 8 in the example shown is moved translationally relative to the housing 3 in a vertically downward direction, whereby the reversing element 13 mounted on the transmission device 8 is also moved will lead. The operation of the device 1 is as follows:

First of all, the door leaf 2, which is equipped with the device 1, is not locked, ie it can be moved relative to a door frame as intended. The corresponding condition of the device 1 is particularly good based on 1 recognizable. The upper locking unit 4 is in a receiving position in which its locking element 9 is extended, so that an upper end portion of the locking element 9 protrudes beyond an upper end of the housing 3. At the same time, the lower locking unit 5 is in an unlocking position in which its locking element 10 is completely retracted into the housing 3. When in the receiving position, the upper locking unit 4 is suitable for interacting with a locking element of an electrical locking device, which grips the locking element 9. Such a closing element is not shown in the example shown.

As a result of the engagement of the closing element with the locking element 9, the latter is retracted or pressed somewhat into the housing 3, so that the locking element 9 protrudes less far beyond the upper end of the housing 3. This is exemplified in 2 shown. In the example shown, this downward movement of the locking element 9, directed towards the lock cylinder 7, is transmitted directly to the coupling element 12 by means of the reversing element 13. For this purpose, it can be provided in particular that both the locking element 9 and the coupling element 12 are each equipped with a toothed strip, by means of which the components mentioned can mesh with the reversing element 13 designed as a gear. As can be seen from the idealized representation, this embodiment causes the coupling element 12 to be moved upwards in the opposite direction as the locking element 9 is retracted, that is to say it moves in the direction of the upper end of the housing 3. Through the action of the second reversing element 14, this movement of the coupling element 12 is transmitted to the lower locking unit 5 and in particular its locking element 10. Here, a reversal of direction also takes place, so that the locking element 10 is moved in a downward direction, ie away from the locking cylinder 7. The locking element 10 can also be equipped with a toothed strip, so that it can mesh particularly easily with the reversing element 14 designed as a gear. As a result, the locking element 10 of the lower locking unit 5 is extended so that it partially protrudes beyond a lower end of the housing 3. In this position, the lower locking element 10 is set up to engage with a corresponding locking element, which can be formed, for example, on or in the respective door frame. Both locking units 4, 5 are now in their locking position, in which they each interact with locking elements and thereby fix the door leaf 2 relative to the door frame.

In order to transfer the locking units 4, 5 back to their previous positions, when the device 1 is operating as intended, it is provided that the closing element of the electrical locking device is raised and the positive engagement with the locking element 9 of the upper locking unit 4 is thereby released. In particular, by the action of at least one spring, not shown in the figures, the locking element 9 can track the movement of the closing element and the upper locking unit 4 can thereby be moved back into its receiving position. Due to the effect of the coupling unit 6, such a movement of the locking element 9 means a movement of the locking element 10 of the lower locking unit 5 in the same direction, so that said locking element 10 is retracted into the housing 3. The door leaf 2 is then unlocked again and can be moved relative to the door frame.

In the event that unlocking the door leaf 2 is not possible, in particular as a result of a defect or a power failure in the electrical locking device, the door leaf 2 cannot be unlocked by lifting the closing element. Nevertheless, according to the invention, manual unlocking is possible, even without the locking element moving. For this purpose, the key is inserted into the lock cylinder 7 and the lock cylinder 7 is actuated. This actuation results in the reversing element 13, which is assigned to the upper locking unit 4, being moved translationally relative to the housing 3 by means of the transmission unit 8. In the example shown, this movement takes place in a downward direction, so that the reversing element 13 is moved towards the lock cylinder 7. This is particularly clear from: 3 . Due to the positive connection of the reversing element 13 to both the upper locking unit 4, here in particular the associated locking element 9, and the coupling element 12, both said locking element 9 and said coupling element 12 are moved downwards in translation relative to the housing 3. The reversing element 14, which is assigned to the lower locking unit 5, remains stationary relative to the housing 3 and is not influenced by the movement of the transmission unit 8. As a result of this, the coupling element 12 moves relative to the reversing element 14. Due to the accompanying mechanics, this leads to the locking element 10 of the lower locking unit 5 being moved in the opposite direction, ie upwards here. The movements of the transmission unit 8 and the resulting movements The other parts are coordinated with one another in such a way that both the locking element 9 of the upper locking unit 4 and the locking element 10 of the lower locking unit 5 are completely retracted into the housing 3. As a result, the locking elements 9, 10 each come out of engagement with the respective associated locking element, so that both locking units 4, 5 are in an unlocking position. The door leaf 2 is then unlocked so that it can move as intended relative to the door frame.

Based on the basic sketches according to 1 until 3 Principles illustrated are in one way or another also in the two exemplary embodiments according to 4 until 6 and 7 until 9 realized.

In a first exemplary embodiment, which is in the 4 until 6 is shown, the device 1, which is arranged here in a door leaf 2, includes an upper locking unit 4, which is equipped with a locking element 9. The device 1 further comprises a lower locking unit 5, which is equipped with a locking element 10. Furthermore, a coupling unit 6 is present, which comprises two reversing elements 13, 14 and a coupling element 12, the latter being designed in the form of an elongated push rod. The individual assemblies of the device 1 are arranged within the housing 3. Approximately in the middle of the device 1, it includes a locking cylinder 7, which includes a functional element 11. The lock cylinder 7 cooperates with a transmission unit 8, by means of which a movement of the functional element 11 can be transferred to the reversing element 13, which is assigned to the upper locking unit 4. This is done in such a way that the reversing element 13 is movable in translation relative to the housing 3 as a result of the actuation of the locking cylinder 7. In the example shown, this takes place in the sense of a downward movement of the reversing element 13, that is towards the locking cylinder 7.

In the in 4 In the state shown, the locking units 4, 5 are not in engagement with corresponding locking elements 30, 37. The door leaf 2, on which the device 1 is arranged, is therefore freely movable relative to the door frame, not shown in the figures. The upper locking unit 4 is in a receiving position in which it is suitable for being positively gripped by a closing element 30 of an electrical locking device 28, also not shown. The lower locking unit 5 is in its unlocking position.

To lock the door leaf 2, the closing element 30 is lowered by means of an electric drive 29, the locking element 9 of the upper locking unit 4 being gripped in a form-fitting manner. As in 5 shown, this causes the locking element 9 to be “pressed” at least somewhat into the housing 3 of the device 1. This results in a spring 16, which is connected to the upper locking unit 4, being compressed. The spring 16, which is formed by a preloaded compression spring, is supported against a stop 18. The spring 16 ensures that the locking element 10 is extended again should the closing element 30 be raised again. As a result of the downward movement of the closing element 30, the upper locking unit 4 is now in its locking position.

According to the principle explained above, the “pressing in” of the locking element 9 leads to a reverse upward movement of the coupling element 12, which is raised by the action of the reversing element 13. For this purpose, both the upper locking unit 4 and the coupling element 12 each work together with toothed strips 20, 22, which mesh with the reversing element 13. The upward movement of the coupling element 12 leads via the reversing element 14, which is assigned to the lower locking unit 5, to a downward movement of the locking element 10 of the lower locking unit 5. Here, the reversing element 14 is equipped with a stroke increaser 27. This is achieved in that the reversing element 14 comprises two coaxial toothed disks, the diameter of a first toothed disk not visible in the figures, which meshes with a toothed strip 23 of the coupling element 12, being smaller than the diameter of the second toothed disk, which has a toothed strip 21 of the lower locking unit 5 combs. This results in the upward movement of the coupling element 12 being translated into a downward movement of the locking element 10 that is larger in magnitude. As a result, the locking element 10 is extended beyond a lower end of the door leaf 2 and thereby engages with a stationary closing element 37, which can be designed in particular in the form of a receptacle formed in a door frame of the door leaf 2. The two locking units 4, 5 are now each in their locking position.

The locking cylinder 7 can now be used to manually unlock the door leaf 2. This is suitable for receiving a correspondingly coded key, with the functional element 11 being guided along a circular arc section in an angular range of approximately 180° as a result of an actuation of the locking cylinder 7. This movement of the functional element 11 results in the reversing element 13, which cooperates with the upper locking unit 4, being moved downwards in translation relative to the housing 3. For this transmission of the movement of the A transmission unit 8 is responsible for the functional element 11 on the reversing element 13, which cooperates with both the locking cylinder 7 and the reversing element 13. In the specific embodiment, the transmission unit 8 comprises a transmission element 26, a translation element 25, a transmission rod 36 and a carrier element 15. The translation element 25 is mounted on the housing 3 so that it can pivot about a pivot axis 24 and interacts with the transmission rod 36 in a form-fitting manner. The transmission rod 36 is connected at its end facing away from the lock cylinder 7 to the carrier element 15, which carries the reversing element 13. The transmission rod 36 and therefore the carrier element 15 can be moved linearly up and down relative to the housing 3 as a result of a pivoting movement of the translation element 25.

In order to transfer the pivoting movement of the functional element 11 to a pivoting movement of the translation element 25, the functional element 11 engages directly with the transmission element 26, which is mounted in the housing 3 in a guided, movable manner. In particular, the transmission element 26 has a milling in which a guide pin of the translation element 25 is mounted. Through the action of the functional element 11, the transmission element 26 is raised against the action of a spring 34, ie displaced in a direction facing away from the lock cylinder 7. As soon as the functional element 11 exceeds its high point at approximately 90° compared to a starting position, the transmission element 26 is pushed back again by the action of the spring 34, so that it is ultimately in its starting position, but the functional element 11 is rotated 180°. This is particularly clear from a comparison 5 and 6 . As a result of the coupling of the transmission element 26 with the translation element 25, the translation element 25 is forced to pivot about its pivot axis 24 as a result of the movement of the transmission element 26 and causes the downward movement of the latter due to the coupling with the transmission rod 36 and carrier element 15.

This leads to the downward movement of the reversing element 13 in the manner described. Since the latter is positively connected to the upper locking unit 4 and the coupling element 12 via the toothed strips 20, 22, the locking element 9, upper locking unit 4 and the coupling element 12 are likewise moved downwards. Furthermore, the stop 18 of the spring 16 is arranged on the support element 15, so that a tension state of the spring 16 does not change in the course of this movement. According to the explanation above, the downward movement of the coupling element 12 leads to an opposite movement of the locking element 10 of the lower locking unit 5, which is also supported by a spring 17 which is preloaded and is supported against a stop 19. As a result, the locking element 10 is drawn into the door leaf 2 and loses its positive engagement with the closing element 37. In the same way, the locking element 9 loses its positive engagement with the locking element 30 assigned to it in the course of the downward movement of the reversing element 13. As a result, the locking units 4, 5 are now each in their unlocked position, so that the door leaf 2 can be moved relative to the door frame.

Preferably, a tensioning force of the spring 17, which cooperates with the lower locking unit 5, is greater than a tensioning force of the spring 16, which interacts with the upper locking unit 4. In particular, the clamping force of the spring 17 can be twice as large, preferably three times as large, as the clamping force of the spring 16. This simplifies the operation of the locking cylinder 7 in the manner described.

In a further exemplary embodiment of a device 1 according to the invention, which results from the 7 until 9 results, the upper locking unit 4 comprises a locking element 9 and a separate switching element 33. The electrical locking device 28, which includes an electric drive 29, further comprises a locking element 30 which can be lowered towards the locking element 9 by means of the drive 29. This ensures that the locking element 9 is gripped in a form-fitting manner by the locking element 30, but the locking element 9 as such is not moved towards the locking cylinder 7 of the device 1. Nevertheless, as a result of the movement of the locking element 30, the switching element 33 is actuated, which is “pressed” in the direction of the locking cylinder 7. The switching element 33 cooperates with a toothed strip 20, which meshes with the reversing element 13, which is assigned to the upper locking unit 4. In the manner described, the reversing element 13 further meshes with the coupling element 12 of the coupling unit 6 via a toothed strip 22, so that the downward movement of the switching element 33 causes a corresponding upward movement of the coupling element 12. The coupling element 12 is formed here by a pull rope. This movement is in turn transmitted in the manner described via the further reversing element 14 to the lower locking unit 5, so that its locking element 10 is extended. In this embodiment, too, this movement is increased by a stroke increaser 27, for which a movable gear 35, a fixed toothed bar 38 and a movable toothed bar 39 are used. This results particularly well based on a comparison of the 7 and 8th . The movable gear 35 thus meshes with the fixed toothed bar 38, which is fixed relative to the housing 3. The movement of the gear 35 has a direct effect on the locking element 10 of the lower locking unit 5, which is kinematically coupled to the locking element 10 via the movable toothed bar 39. The movable gear 35 is arranged on a support element 40, which moves along the fixed toothed bar 38 in accordance with the translational movement of the movable gear 35. The toothed bar 21 of the lower locking unit 5 is formed on this support element 40, the toothed bar 21 meshing with the toothed bar 23 of the coupling unit 6 via the reversing element 14, analogously to the description above. The interaction of the reversing element 14 with the toothed bar 21 and the movable gear 35 with the movable toothed bar 39 leads, as desired, to the stroke increase, which here provides a ratio of 1:2.

By lowering the switching element 33 as a result of the lowering of the closing element 30, both the upper locking unit 4 and the lower locking unit 5 are each transferred into their locking position, with the locking element 9 of the upper locking unit 4 with the locking element 30 and the locking element 10 of the lower locking unit 5 with it engage in a form-fitting manner with the further closing element 37. This is particularly clear from: 8th .

In order to now effect a manual unlocking of the door leaf 2, which may be necessary in particular in the event of a defect in the locking device 28 or, for example, a power failure, the lock cylinder 7 is actuated. This results in a movement of one in the 7 until 9 Functional element 11, not shown, is transferred to the reversing element 13, which cooperates with the upper locking unit 4, so that the reversing element 13 is moved towards the lock cylinder 7. This transmission of the movement of the functional element 11 to the reversing element 13 takes place by means of the transmission unit 8, which is formed here by an elongated transmission rod 36. The transmission rod 36 is coupled to a support element 15, which is designed here as part of the upper locking unit 4. The reversing element 13 is mounted on this support element 15, so that a translational movement of the transmission rod 36 leads to a corresponding movement of the support element 15 and thus of the reversing element 13. As a result, the reversing element 13 is moved towards the locking cylinder 7, with the locking element 9 of the upper locking unit 4 arranged on the support element 15 being “retracted”. As a result, the locking element 9 loses its engagement with the closing element 30, so that the upper locking unit 4 is now in its unlocked position. The actuation of the locking cylinder 7 and the resulting movement of the functional element 11 are accordingly transmitted indirectly to the locking units 4, 5 by means of the transmission unit 8 in such a way that they are transferred from their locking positions to their unlocking positions.

As a result of the movement of the upper locking unit 4 in the direction of the locking cylinder 7 (downwards), the coupling element 12 is also moved downwards in the manner described. Since the coupling element 12 is designed here as a rope and as such is flexible, the movement of the upper toothed bar 21 of the coupling element 12 is not transmitted to the lower toothed bar 22. Instead, the coupling element 12 folds and thereby gives the lower toothed bar 22 a freedom of movement for downward movement, that is to say in a direction away from the lock cylinder 7. This freedom of movement, which did not exist before the locking cylinder 7 was actuated, now enables the spring 17, which is tensioned with a compressive force, to lift the toothed bar of the stroke increaser 27 and correspondingly the toothed bar 21 of the lower locking unit 4 in the direction of the locking cylinder 7. since the reversal of this upward movement caused by the reversing element 14 to a downward movement of the toothed strip 23 of the coupling unit 6 is now possible due to the freedom of movement. As a result, the locking element 10 loses engagement with the associated locking element 37, so that the lower locking unit 5 is now in its unlocked position. The door leaf 2 can now be moved relative to the door frame as intended, although the closing element 30 of the electrical locking device 28 is still in a lowered position, in which it typically engages in a form-fitting manner with the locking element 9 of the upper locking unit 4.

In an exemplary embodiment in which the door is formed by a sliding door, the door leaf 2 is displaced relative to the door frame in order to open the door. In order to guide the movement of the door leaf, the door has a floor guide 41, which is based on 10 results. The floor guide is arranged at a lower end of the door directly on a door frame of the door. It protrudes a little way beyond a floor, which means that there is fundamentally a risk of collision with the locking element 10 of the lower locking unit 5 of the device 1, which interacts with the door leaf 2. In the example shown, the device has a stroke increaser 27, which has the technical effect of increasing the stroke of the Rie gel elements 10 is comparatively large in the course of transferring the lower locking unit 4 from its locking position to its unlocking position. For example, the stroke increaser 27 can have a ratio of 1:3, so that a movement of the locking element 9 of the upper locking unit 4 is tripled in amount when transmitted to the locking element 10 of the lower locking unit 5. The effect of the stroke increase 27 causes the locking element 10 to move so far in the direction of it 10 Locking cylinder 7 of the device 1, not shown, is raised so that a lower end 42 of the locking unit 10 is located above the floor guide 41 when the locking unit 4 is in its unlocking position, that is to say at a height level above the floor guide 41. This state is in 10 illustrated.

A collision between the locking element 10 and the floor guide 41 is therefore avoided, which makes it possible to completely open the door leaf 2 and thereby completely release a clear width of the door. If the locking element 10 could only be raised to a lesser extent and then collided with the floor guide 41, the door leaf 2 could not be fully opened, so that the clear width of the door would effectively be smaller. This is particularly disadvantageous in cases where, due to applicable regulations, there must be a certain clear width of an opened door.

Reference symbol list

1

contraption

2

door

3

Housing

4

Latch unit

5

Latch unit

6

Coupling unit

7

Lock cylinder

8th

Transmission unit

9

Locking element

10

Locking element

11

functional element

12

Coupling element

13

Reversal element

14

Reversal element

15

Support element

16

Feather

17

Feather

18

attack

19

attack

20

Tooth bar

21

Tooth bar

22

Tooth bar

23

Tooth bar

24

Pivot axis

25

Translation element

26

Transmission element

27

Stroke increase

28

Locking device

29

drive

30

Closing element

31

Axis of rotation

32

Axis of rotation

33

Switching element

34

Feather

35

gear

36

transmission rod

37

Closing element

38

Tooth bar

39

Tooth bar

40

Support element

41

Floor guidance

42

End

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102021101448 A1 [0007]

Claims (13)

Device (1) for locking a door leaf (2) relative to a door frame, comprising - a housing (3), - an upper locking unit (4) for locking the door leaf (2) at its upper end, - a lower locking unit (5) for locking the door leaf (2) at its lower end, - a coupling unit (6) for kinematically coupling the two locking units (4, 5), - a locking cylinder (7) and - a transmission unit (8), the locking units (4, 5) each comprise a locking element (9, 10), the locking units (4, 5) being coupled to one another by means of the coupling unit (6) in such a way that the transfer of one of the locking units (4, 5) from a locking position in which the respective Locking unit (4, 5) is designed to cooperate with a corresponding locking element (30) and thereby lock the door leaf (2) relative to the door frame, bringing about a similar transfer of the other locking unit (4, 5) into an unlocking position, whereby the Locking cylinder (7) is suitable for interaction with a key coded on the locking cylinder (7), by means of which the locking cylinder (7) can be operated manually and thereby a functional element (11) of the locking cylinder (7) can be moved between a closed position and an open position, whereby the movement of the functional element (11) can be transferred directly or indirectly to at least one of the locking units (4, 5) by means of the transmission unit (8), so that at least one of the locking units (4, 5) is moved from its respective locking position by actuating the locking cylinder (7). can be moved into their respective unlocking position, characterized in that the coupling unit (6) comprises two reversing elements (13, 14) and a coupling element (12) which couples the two reversing elements (13, 14) to one another, one of the reversing elements (13, 14) being in each case ) cooperates with one of the locking units (4, 5), the coupling unit (6) being set up to initiate a movement of one of the locking units (4, 5) by means of the reversing element (13, 14) assigned to the respective locking unit (4, 5). to transfer the coupling element (12) and the resulting movement of the coupling element (12) to the locking unit (4, 5) assigned to it by means of the other reversing element (13, 14), the movement of the functional element (11) being carried out by means of the transmission unit (8). ) can be transferred to at least one of the reversing elements (13) in such a way that the reversing element (13) can be moved translationally relative to the housing (3) as a result of an actuation of the locking cylinder (7). Device (1) according to Claim 1 , characterized in that at least one of the locking units (4, 5) cooperates with a spring (16, 17), which on one of its sides against the respective locking unit (4, 5) and on its other side against a stop (18, 19 ) is tensioned, the spring (16, 17) preferably biasing the locking unit (4, 5) in the direction of its locking position. Device (1) according to Claim 2 , characterized in that the stop (18, 19) is assigned to the reversing element (13), which is translationally movable relative to the housing (3). Device (1) according to Claim 2 or 3 , characterized in that both locking units (4, 5) each interact with a spring (16, 17), preferably a tensioning force with which one of the springs (17) is preloaded, a tensioning force with which the other spring (16) is prestressed by at least 50%, preferably at least 75%, more preferably at least 100%. Device (1) according to Claims 3 and 4 , characterized in that the stop (18) of the spring (16), which is biased with the lower tension force, is assigned to the reversing element (13), which is translationally movable relative to the housing (3). Device (1) according to one of the preceding claims, characterized in that at least one of the reversing elements (13, 14), preferably both reversing elements (13, 14), is formed by a gear, preferably both the coupling element (12) and the Locking unit (4, 5) cooperating with the respective reversing element (13, 14) each includes a toothed strip (20, 21, 22, 23) meshing with the reversing element (13, 14). Device (1) according to one of the preceding claims, characterized by a stroke increase (27), by means of which a stroke of the coupling element (12) can be transferred to at least one of the locking units (4, 5) in an increased amount, the stroke increase (27) preferably being the lower locking unit (5) is assigned. Device (1) according to Claims 6 and 7 , characterized in that the stroke enlargement (27) is formed on a reversing element (14) formed by a gear, the reversing element (14) having two coaxial toothed disks of different diameters. Device (1) according to Claims 6 and 7 , characterized in that the stroke enlargement (27) along a fixed toothed strip (38) movable gear (35) which meshes with a movable toothed bar (39), the movable toothed wheel (35) being arranged on a support element (40) on which a further toothed bar (21) is arranged, which is connected to that of the gear formed reversing element (14). Device (1) according to one of the preceding claims, characterized in that the transmission unit (8) comprises a translation element (25) which can be pivoted about a pivot axis (24) and which can be moved directly or indirectly by means of the functional element (11) between a first pivot position and a second Pivoting position can be transferred, wherein by means of the translation element (25) a rotational movement of the functional element (11) can be translated into the translational movement, which can be transferred to the reversing element (13). Device (1) according to Claim 10 , characterized in that the transmission unit (8) comprises a transmission element (26) which interacts with the functional element (11) in such a way that it is displaced by the functional element (11) in the course of an actuation of the locking cylinder (7) and thereby translationally relative to the housing (3), the transmission element (26) being positively connected to the translation element (25) and being designed to pivot the translation element (25) about the pivot axis (24) in the course of its movement. Door, especially in the form of an automatic door, comprising - at least one door leaf (2), - a door frame as well - an electrical locking device (28), wherein the door leaf (2) is equipped with a device (1) according to one of the preceding claims, wherein the closing device (28) has an electric drive (29) for driving a closing element (30) which can be transferred between a closed state and an open state, wherein the closing element (30), when in its closed state, engages in a form-fitting manner with a locking element (9) of a locking unit (4) of the device (1) and thereby blocks movement of the door leaf (2) relative to the door frame, wherein the closing element (30) releases the locking element (9) when in its open state. Door after Claim 12 , characterized in that the door leaf (2) is formed by a sliding door leaf, the door comprising a floor guide (41) for guiding the door leaf (2), the device (1) having a stroke increaser (27) which can be used indirectly or directly interacts with a locking element (10) of a lower locking unit (5), so that the locking element (10) in the course of a transfer of the locking unit (5) from its locking position to its unlocking position under the effect of the stroke increase (27) in the direction of a locking cylinder (7) the device (1) can be raised in such a way that a lower end (42) of the locking unit (10) is at a height above the floor guide (41) when the locking unit (5) is in its unlocking position.

Images