DE102021200160A1 - Parking lock device for a motor vehicle - Google Patents

Abstract

Parking lock device (1) for a motor vehicle, which parking lock device (1) has an actuating device (2) which has at least one actuator and is coupled to a parking lock element (8, 9), in particular a parking lock pawl, of the parking lock device (1) and which is designed for this purpose by movement a movement link (6) relative to a bearing element (11), in particular a bearing pin, to transfer the parking lock device (1) from an engaged position from a disengaged state to an engaged state or from a disengaged position from an engaged state to a disengaged state, wherein the Actuating device (2) is designed to release the mounting of the movement link (6) on the bearing element (11) in an emergency release state, the actuating device (2) being designed to move the movement link (6) and/or the bearing element (11) to move to the deployment position in the emergency release state.

Description

The invention relates to a parking lock device for a motor vehicle, which parking lock device has an actuating device which has at least one actuator and is coupled to a parking lock element, in particular a parking lock pawl, of the parking lock device and which is designed to activate the parking lock device by moving a movement gate relative to a bearing element, in particular a bearing pin from a laid-in position from a laid-out state into a laid-in state or from a laid-out position from a laid-in state into a laid-out state, the actuating device being designed to release the mounting of the movement link on the bearing element in an emergency release state.

Parking lock devices for motor vehicles are basically known from the prior art. These usually have a parking lock element, for example a parking lock pawl, which parking lock element is designed to block a corresponding further parking lock element which is arranged on or on a component of a transmission of the motor vehicle. For example, a parking lock element is designed as a parking lock pawl that can engage in a parking lock wheel. The transmission of the motor vehicle can be blocked or blocked by the mostly form-fitting engagement between the parking lock elements. For example, to prevent unintentional movement, for example rolling, of the motor vehicle when parked, the parking lock device can be engaged so that it blocks the transmission of the motor vehicle, for example at an output.

In the case of such parking lock devices, it is also known that they can be moved or converted between a disengaged state and an engaged state, in particular in order to disengage and engage the parking lock device. In addition to the disengagement movement and engagement movement, an emergency release is usually provided, by means of which the parking lock device can be transferred to the engaged state as quickly as possible, for example if an error occurs during operation of the motor vehicle. If the parking lock device is transferred from the disengaged position to the engaged position by the emergency release, the movement mechanism that ultimately moves the parking lock element between the engaged position and the disengaged position or between the engaged state and the disengaged state is mostly in the disengaged state assigned insertion position. If the parking lock device is to be brought back into the disengaged state from an emergency release state, it is necessary first to bring the movement link from the engaged position to a disengaged position from which the movement link was in the disengaged state, from which the parking lock device is disengaged again can be and then carry out a transfer of the parking lock device from the engaged state to the disengaged state by moving the movement link relative to the bearing element.

After an emergency release, it is therefore necessary to first bring the movement link into a disengaged position from which the parking lock element can be transferred from the engaged state to the disengaged state by the relative movement between the movement link and the bearing element. In this case, two movements are evidently required, the movement setting being moved from the engaged position to the disengaged position, the parking lock device already being in the engaged state in the engaged position due to the emergency release. During the movement from the engaged position to the disengaged position, no movement of the parking lock element is generated, since the movement guide is not mounted on the bearing element. If the movement link has arrived in the disengaged position, the bearing element can be brought back into engagement with the movement link and the movement link can be moved from the disengaged position, so that the parking lock element can be converted from the engaged state to the disengaged state.

Obviously, the time required for the two movements could be improved. Furthermore, it is possible for a user of the motor vehicle to be able to perceive the isolated movement of the movement backdrop into the individual states.

The invention is based on the object of specifying a parking lock device that is improved in comparison thereto, in which, in particular, the transition from an engaged state to a disengaged state after an emergency release is improved.

The object is achieved by a parking lock device with the features of claim 1. Advantageous configurations are the subject matter of the dependent claims.

As described above, the invention relates to a parking lock device for a motor vehicle, which has an actuating device which has an actuator for actuating the parking lock element, for example the parking lock pawl. includes. Furthermore, the actuating device has an actuating link which can be moved relative to a bearing element, for example a bearing pin. The movement link can thus be moved relative to the bearing element by means of the actuator and due to the shape of the movement link, the parking lock element can be moved between the disengaged state and the engaged state or be transferred between the two states.

An insertion position can thus be defined, from which the parking lock element can be moved from a disengaged state to an engaged state by moving the movement link. In order to disengage the parking lock device again, the parking lock element can be moved from the engaged state to the disengaged state by a corresponding movement of the movement link relative to the bearing element. In addition to the "regular" movement or transfer of the parking lock device between the engaged state and the disengaged state, an emergency release is also possible, for which purpose the bearing of the movement gate on the bearing element is released, so that the parking lock device can be transferred to the engaged state as quickly as possible.

In particular, the movement link can be mounted on the bearing element and coupled to the parking lock element such that in the disengaged state the movement link or the bearing element positions the parking lock element such that the transmission of the motor vehicle is not blocked by the parking lock element. If the emergency release is activated, the coupling between the bearing element and the movement link can be released, for example the bearing element is pulled out of the contour of the movement link so that the parking lock device is engaged spontaneously.

The invention is based on the finding that the actuating device is designed to move the movement link and/or the bearing element into the disengaged position in the emergency release state. In other words, the emergency release is carried out when the parking lock device is in the disengaged state. As a result, the movement guide and the bearing element are still in the insertion position, ie a relative position from which a transition from the deployed state to the inserted state would be possible by releasing the coupling. In order to disengage the parking lock element again, a relative position between the movement link and the bearing element must first be established in which a disengagement movement is possible. According to the invention, it is proposed to move the movement link and/or the bearing element into the disengaged position in the emergency release state. In other words, when the emergency release state is triggered, for example when the bearing element is pulled out of the contour of the movement link and the parking lock device thus changes to the engaged state, a movement is generated between the movement link and the bearing element, so that the movement link is already placed in the disengaged position . In this state, the actuating device does not cause the parking lock element to be moved into a corresponding contour on a shaft of the transmission. Instead, because the coupling between the bearing element and the movement link is released in the emergency release state, a movement of the movement link can be generated without affecting the parking lock element.

Advantageously, when the emergency release state is to be lifted again, the disengagement movement can be started directly without having to first move the movement linkage into the disengagement position. On the one hand, this saves time that is required until the parking lock device can be transferred from the emergency release state back into the disengaged state, for example until the motor vehicle can be started up or moved again. Likewise, acoustic phenomena caused by the movement of the movement backdrop can already be carried out from the emergency release state, so that they do not occur in isolation after the end of the emergency release state. In particular, the parking lock device can have a control device or be coupled to such a control device, which is designed to generate a movement of the movement gate relative to the bearing element when an emergency release command is generated or processed, in which the parking lock device is switched to the emergency release state, in order to to establish or assume the deployment position before the emergency release state is or was ended.

According to one configuration of the parking lock device, it can be provided that the actuating device has a main actuator designed to move the movement gate and an emergency actuator designed to transfer the parking lock device into the emergency release state. Accordingly, it is provided that in a “regular” operation of the parking lock device, in which the parking lock device can be engaged and disengaged, a main actuator is used in order to move the movement link relative to the bearing element. If the emergency release state is to be established, this means that the parking lock device, for example in the event of an error, is released in an emergency should be, the emergency actuator can be used to release the coupling between the movement link and bearing element, so that the parking lock device spontaneously, for example spring-loaded, goes into the engaged state.

The emergency actuator can be coupled to the bearing element, for example, so that the emergency actuator, the bearing element, for example a bearing bolt, is pulled out of the contour of the movement gate or removed from the contour of the movement gate for the transition to the emergency release state, so that the movement gate together with the parking lock element for example spring-loaded, is converted into the inserted state or emergency release state. The actuating device can also have an actuating element which is coupled to the movement link and transmits the movement of the movement link to the parking lock element.

The actuating device can also be designed to operate the main actuator in the emergency release state, in particular to generate a relative movement between the bearing element and the movement link. If the emergency actuator has been actuated, i.e. the parking lock device has been transferred to the emergency release state, the main actuator can be used in the emergency release state to change the relative position between the bearing element and the movement link. A relative movement between the bearing element and the movement link can be generated in such a way that the movement link can be brought into a position suitable for executing the deployment movement, in particular a deployment position. If the emergency release condition is to be lifted again, i.e. that the coupling between the bearing element and the movement link can be restored, for example by deactivating the emergency actuator or by moving the bearing element back into the link or contour of the movement link, the disengagement movement can be started immediately, since the movement link has already been correctly positioned in relation to the bearing element. The shape of the contour of the movement link is created in such a way that when the movement link moves, for example twisting, the movement link moves relative to the bearing element. The contour has at least two different heights or potential areas, in particular at least one area assigned to an inserted state and at least one area assigned to an unloaded state. The two areas can be connected by a continuous ramp.

According to a further embodiment, the emergency actuator can be designed to move the bearing element out of the contour of the movement gate in order to transfer the parking lock device into the emergency release state. The bearing element is coupled to the emergency actuator in such a way that the emergency actuator can generate a movement of the bearing element. In particular, the bearing element can be designed as a bearing bolt on which the contour of the movement guide is mounted. In other words, the movement link is supported on the circumference of the bearing element, so that a displacement of the parking lock element is possible due to the relative movement between the movement link and the bearing element due to the shape of the movement link. In this case, a spring or a spring element can be provided which acts on the movement link and moves it against the bearing element, for example presses it. If the bearing element is moved out of the contour of the movement gate, in particular pulled out of the contour of the movement gate, this means that the movement gate, for example spring-loaded, goes into the emergency release state and the parking lock element coupled to the movement gate also goes into the engaged state.

The parking lock device can also have a detection device which is designed to detect an emergency triggering state and, when an emergency triggering state is detected, to move the movement gate into the disengaged position by means of the actuating device, in particular by means of the main actuator. The detection device can ensure that the emergency release state can be detected, for example when the parking lock device transitions from a disengaged state to the emergency release state. As described above, the coupling between the bearing element and the movement link is released in order to establish the emergency release state, so that the movement link can be moved back into the disengaged position when the emergency release state is initiated, i.e. when the coupling between the bearing element and the movement link is released. This further reduces the time required until the parking lock device is again ready to disengage the parking lock device after an emergency release state. Furthermore, it can be ensured that the movement of the movement linkage into the disengaged position is only undertaken when the emergency release state is correctly detected.

The detection device can also be designed to detect the emergency triggering state by monitoring at least one parameter, in particular a voltage and/or a current of the actuating device, in particular the emergency actuator, and/or at least one position/or a stroke of a part of the parking lock element that is coupled to the Actuating device, in particular an actuating element to detect senior The detection device can thus have a number of types of sensors, it being possible, on the one hand, to monitor the actuating device as such, in particular to monitor characteristic parameters for the emergency actuator. In particular, it is possible to monitor a current and/or a voltage of the emergency actuator, so that an initiated emergency triggering state can be detected by the emergency actuator being energized accordingly or energizing the emergency actuator being canceled in order to thus reduce the coupling between the movement backdrop and to solve the bearing element.

It is also possible, additionally or alternatively, to monitor that part of the actuating device which is coupled to the parking lock element. For example, a position or a stroke of the part of the actuating device can be monitored in order to detect the emergency release state. If the emergency release state is initiated, as described above, the part of the actuating device is moved in such a way that it acts on the parking lock element, for example presses the parking lock pawl into a parking lock wheel. This movement of the part of the actuating device, for example an actuating element, which is coupled to the movement gate, can be detected via a position sensor, so that when the actuating element moves from the disengaged state to the emergency release state, a movement of the movement gate into the disengaged position can already be started. Thus, the main actuator can already generate a movement of the movement link relative to the bearing element as soon as the emergency triggering state has been detected. If the emergency release state ends, the bearing element can already be introduced into the contour of the movement linkage in such a way that the disengagement movement can be started immediately.

The parking lock device can also be further developed such that the or a detection device is designed to detect a position, in particular an end stop, of the actuating device, in particular the movement gate. According to this embodiment, it is provided that the position of the actuating device is detected; in particular, an end stop of the actuating device or the movement gate can be detected. If the main actuator thus moves the movement linkage into the disengaged position, reaching the disengaged position can be ensured by detecting the end stop. The defined position of the actuating device can take place, for example, by evaluating the current and/or voltage of the main actuator. Likewise, the main actuator can be switched off when the position is reached or when the end stop is reached, so that the disengagement movement can be started immediately after the end of the emergency release state.

The actuating device of the parking lock device can also be designed to generate a movement of the movement gate by means of the main actuator in an emergency release state in which the bearing element is moved out of the contour of the movement gate and to move the movement gate into the disengaged position and after the end of the emergency release state the bearing element to move in the contour of the movement backdrop. As already described, in order to release the coupling between the movement link and the bearing element, the bearing element can be pulled out of the contour of the movement link by means of the emergency actuator. The movement link can be mounted on the bearing element in such a way that when the coupling is released, i.e. the bearing element is pulled out of the movement link, the movement link changes to the engaged state together with an actuating element that acts on the parking lock element and thus engages the parking lock element, for example into the contour of the parking lock wheel.

According to this configuration, in the emergency release state, the movement between the movement link and the bearing element can be generated by means of the main actuator, so that the movement link is moved into the disengaged position. In the disengaged position, the bearing element can then be moved back into the contour of the movement link, so that when the movement link is moved again from the disengaged position to the disengaged state, the actuating element releases the parking lock element again, for example by resetting a spring element.

This makes it possible to already generate a movement by means of the main actuator while the parking lock device is still in the emergency release state, ie movement of the actuating device is not possible due to the released coupling between the movement link and the bearing element. In the decoupled state, it is consequently possible to move the movement link without risk, so that the state of the actuating device is not changed. Only when the bearing element is moved back into the contour of the movement link and thus a coupling can be produced between the movement link and the bearing element can the parking lock device be designed again. If you switch back to normal operation from the emergency release state, the bearing element can consequently be brought back into the contour of the movement backdrop, so that the already prepared disengagement process or the prepared disengagement movement saves time and is less complicated improved acoustic properties can be performed.

In addition, the invention relates to a motor vehicle comprising a parking lock device as described above. The motor vehicle can include at least one control device that is designed to control the parking lock device; in particular, the control device can control the emergency actuator and the main actuator accordingly. It is also possible to supply the control device with corresponding sensor values, for example for the position of the actuating element or the movement link and the position of the movement link relative to the bearing element. The movement link is in particular ring-shaped around a central axis of the actuating device and can consequently be rotated about the central axis, so that due to the profile of the contour of the movement link, which is supported on the bearing element, a height displacement of the actuating element and thus a position displacement of the parking lock element can be undertaken.

In addition, the invention relates to a method for operating a parking lock device, in particular a parking lock device as described above, which parking lock device has an actuating device which has at least one actuator and is coupled to a parking lock element, in particular a parking lock pawl, of the parking lock device and which is designed to, by moving a movement link relative to a Bearing element, in particular a bearing bolt, to transfer the parking lock device from an engaged position from a disengaged state to an engaged state or from a disengaged position from an engaged state to a disengaged state, with the actuating device being designed to mount the movement link on the bearing element in one To solve emergency release, wherein the movement link and / or the bearing element are moved in the emergency release in the disengaged position.

Of course, all the advantages, details and features that have been described in relation to the parking lock device can be fully transferred to the motor vehicle and the method.

• 1 eine Parksperrenvorrichtung;
• 2 ein Detail einer Betätigungseinrichtung der Parksperrenvorrichtung von 1 in einem ersten Betriebszustand;
• 3 ein Detail einer Betätigungseinrichtung der Parksperrenvorrichtung von 1 in einem zweiten Betriebszustand;
• 4 ein Detail einer Betätigungseinrichtung der Parksperrenvorrichtung von 1 in einem dritten Betriebszustand; und
• 5 ein Detail einer Betätigungseinrichtung der Parksperrenvorrichtung von 1 in einem vierten Betriebszustand.

The invention is explained below using exemplary embodiments with reference to the figures. The figures are schematic representations and show:

• 1 a parking lock device;
• 2 a detail of an actuating device of the parking lock device from 1 in a first operating condition;
• 3 a detail of an actuating device of the parking lock device from 1 in a second operating condition;
• 4 a detail of an actuating device of the parking lock device from 1 in a third operating condition; and
• 5 a detail of an actuating device of the parking lock device from 1 in a fourth operating state.

1 shows a parking lock device 1 for a motor vehicle, not shown. The motor vehicle can consequently have the parking lock device 1, for example in order to lock at least one shaft of a transmission of the motor vehicle. The parking lock device 1 has an actuating device 2 to which a main actuator 3 and an emergency actuator 4 are assigned. The main actuator 3 is coupled via a gear 5 to a movement link 6 , which in turn is connected to an actuating element 7 . The actuating element 7 acts on a first parking lock element 8, which is designed in this embodiment as a parking lock pawl and in the 1 inserted state shown in the contour of a second parking lock element 9, in this embodiment, a parking lock wheel, engages.

in the in 1 In the engaged position shown or in the engaged state shown, the motor vehicle is thus secured by means of the parking lock device 1, ie the parking lock device 1 blocks a transmission of the motor vehicle. The second parking lock element 9, ie the parking lock gear, is coupled, for example, to an output shaft of the transmission of the motor vehicle and is fixed by the first parking lock element 8 in such a way that rotation of the corresponding shaft is not possible. The motor vehicle can only be moved when the coupling between the two parking lock elements 8, 9 is released. In order to release the parking lock device 1, the main actuator 3 generates a rotational movement of the movement link 6 about a central axis of the movement link 6, so that a contour 10 of the movement link 6, which is mounted on a bearing element 11, causes a movement of the actuating element 7, so that the actuating element 7 releases the first parking lock element 8, which is thereby moved spring-loaded out of the contour of the second actuating element 9. During this movement, the movement link 6 is spring-loaded by a spring element 12 against the bearing element 11, such as a bearing pin, moves. In other words it will Spring element 12 is compressed during the disengagement movement described.

If you want to switch from the previously described disengaged state, in which the first parking lock element 8 is released by the actuating element 7, to the emergency release state, the bearing element 11 is moved or pulled out of the contour 10 of the movement gate 6 by means of the emergency actuator 4, so that the bearing the movement link 6 is canceled or the coupling between the bearing element 11 and the movement link 6 is released. As a result, the movement link 6 is spring-loaded by the spring element 12 and, together with the movement link 6, the actuating element 7 is transferred from the disengaged position or the disengaged state to the engaged state. In other words, the actuating element 7 together with the movement link 6 in the 1 shown state moves, that is, the actuating element 7 is moved downwards and thus moves the first parking lock element 8 in the 1 shown position.

In the following, the individual states and the transfer of the parking lock device 1 between the designed state, the engaged state and the emergency release state with reference to the 2 until 5 be explained. In the 2 until 5 is always shown in the upper part a representation in plan view of the movement link 6 and the bearing element 11 and in the lower part of the 2 until 5 a side view of the movement gate 6 and the bearing element 11 positioned relative thereto is shown.

2 shows the state of the parking lock device 1 in which the parking lock device 1 is in the disengaged state, ie the first parking lock element 8 is released. In this state, the contour 10 of the movement gate 6 is positioned in such a way that the bearing element 11 is arranged in a trough in the contour 10 . The movement guide 6, which, as described above, is coupled to the actuating element 7, in 1 pushed up so that the actuating element 7 releases the first parking lock element 8 . As also in 2 shown, in order to reach the emergency release state, the bearing element 11 can be moved out of the contour 10, for example by triggering the emergency actuator 4. Then, due to the loading of the movement link 6 by the spring element 12, the movement link 6 and the actuating element 7 are released by the spring element 12 moves, so that the first parking lock element 8 is inserted. The emergency release state is in 3 shown, in which the movement link 6 has shifted relative to the bearing element 11, which was pulled out of the contour 10 of the movement link 6.

In 3 shows the emergency release state, which can be detected, for example, by means of a sensor, for example a current sensor, voltage sensor or a position sensor 13 . In this way, both the current or the voltage of the emergency actuator 4 and the position of the movement gate 6 or the actuating element 7 can be detected. Of course, it is also possible to detect a signal for triggering the emergency release state in a control device. If the assumption of the emergency release state is detected, the main actuator 3 can be controlled accordingly in order to move the movement link 6 relative to the bearing element 11 during the emergency release state. In particular, as in 4 shown, the movement link 6 can be rotated relative to the bearing element 11 in order to already assume the disengaged position in the emergency release state.

As in 4 represented by the arrow 14, the movement gate 6 is moved relative to the bearing element 11 during the emergency release state. This changes the relative position between the bearing element 11 and the movement link 6, so that the 5 shown state is assumed. In 5 the display position is shown, in which the bearing element 11 can be reinserted into the contour 10 of the movement link 6 as soon as the emergency release condition is ended. This can be done, for example, by deactivating the emergency actuator 4, so that the bearing element 11 is introduced into the contour 10 of the movement guide 6, for example under the action of a spring. Active setting of the bearing element 11 by means of the emergency actuator 4 is also possible.

Subsequently, starting from the in 5 State shown, the movement can be made immediately in the laid-out state, since movement link 6 and bearing element 11 are already in the laid-out position. To the parking lock device 1 starting from 5 designed, it is therefore only necessary to move the movement link 6 by means of the main actuator 3, so that the movement link 6 is moved on the bearing element 11 by the contour 10 and finally the in 2 shown designed state can be taken, in which the parking lock device is designed, ie that the parking lock element 8 is released by the actuating element 7.

Of course, all the advantages, details and features can also be transferred to the motor vehicle that has the parking lock device 1 . The procedure described previously can of course be carried out by means of the parking lock device 1 or the parking lock device 1 can be operated based on the method.

Reference List

1

parking lock device

2

actuating device

3

main actor

4

emergency actuator

5

transmission

6

movement backdrop

7

actuator

8, 9

parking lock element

10

contour

11

bearing element

12

spring element

13

sensor

14

Arrow

Claims (10)

Parking lock device (1) for a motor vehicle, which parking lock device (1) has an actuating device (2) which has at least one actuator and is coupled to a parking lock element (8, 9), in particular a parking lock pawl, of the parking lock device (1) and which is designed for this purpose by movement a movement link (6) relative to a bearing element (11), in particular a bearing pin, to transfer the parking lock device (1) from an engaged position from a disengaged state to an engaged state or from a disengaged position from an engaged state to a disengaged state, wherein the Actuating device (2) is designed to release the mounting of the movement link (6) on the bearing element (11) in an emergency release state, characterized in that the actuating device (2) is designed to move the movement link (6) and/or the bearing element (11) move to the deployed position in the emergency release condition. Parking lock device (1) after claim 1 , characterized in that the actuating device (2) has a main actuator (3) designed to move the movement link (6) and an emergency actuator (4) designed to transfer the parking lock device (1) into the emergency release state. Parking lock device (1) after claim 2 , characterized in that the actuating device (2) is designed to operate the main actuator (3) in the emergency release state, in particular to generate a relative movement between the bearing element (11) and the movement link (6). Parking lock device (1) after claim 2 or 3 , characterized in that the emergency actuator is designed to move the bearing element (11) out of a contour (10) of the movement link (6) in order to convert the parking lock device (1) into the emergency release state. Parking lock device (1) according to one of the preceding claims, characterized by a detection device which is designed to detect an emergency release condition and, when an emergency release condition is detected, to move the movement link (6) by means of the actuating device (2) into the disengaged position. Parking lock device (1) after claim 5 , characterized in that the detection device is designed to detect the emergency release state by monitoring at least one parameter, in particular a voltage or a current, of the actuating device (2), in particular the emergency actuator (4), and/or at least one position and/or detecting a stroke of a part of the actuating device (2) coupled to the parking lock element (8, 9). Parking lock device (1) according to one of the preceding claims, characterized in that the or a detection device is designed to detect a position, in particular an end stop, of the actuating device (2), in particular the movement gate (6). Parking lock device (1) according to one of the preceding claims, characterized in that the actuating device (2) is designed to, in an emergency release state in which the bearing element (11) is moved out of the contour (10) of the movement link (6), a movement of the movement gate (6) by means of the main actuator (3) and to move the movement gate (6) into the disengaged position and after the end of the emergency release state to move the bearing element (11) into the contour (10) of the movement gate (6). Motor vehicle comprising a parking lock device (1) according to one of the preceding claims. Method for operating a parking lock device (1), in particular a parking lock device (1) according to one of Claims 1 until 8th , wel The parking lock device (1) has an actuating device (2) which has at least one actuator and is coupled to a parking lock element (8, 9), in particular a parking lock pawl, of the parking lock device (1) and which is designed to, by moving a movement link (6) relative to a Bearing element (11), in particular a bearing pin, to transfer the parking lock device (1) from an engaged position from a disengaged state into an engaged position into an engaged state or from an engaged state into a disengaged state, the actuating device (2) being designed for this to release the mounting of the movement link (6) on the bearing element (11) in an emergency release state, characterized in that the movement link (6) and/or the bearing element (11) are moved into the disengaged position in the emergency release state.

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