CN107448073B

CN107448073B - Door unlocking device for a door or flap of a motor vehicle

Info

Publication number: CN107448073B
Application number: CN201710294625.7A
Authority: CN
Inventors: A.斯克洛班斯基; A.苏科普; M.蒂希特
Original assignee: Volkswagen AG
Current assignee: Volkswagen AG
Priority date: 2016-04-29
Filing date: 2017-04-28
Publication date: 2020-02-21
Anticipated expiration: 2037-04-28
Also published as: CN107448073A; DE102016207347A1

Abstract

The invention relates to a door unlocking device (14) for a door (4) or a cover of a motor vehicle (1), comprising a pivotably mounted door handle (10), a door lock (5) which can be actuated by the door handle (10), which is designed to lock the door (4)/cover to a frame (2) and to release the lock when it is actuated by the door handle (10), wherein the door handle (10) is coupled to the door lock (5) for actuation thereof by means of at least one mechanical connecting element (9), and the door unlocking device (17) comprises an actuatable protective device (17) which is designed to prevent or make difficult the opening of the door (4)/cover as required. Provision is made for the protective device (17) to have a first stop element (24) which is arranged fixedly on the connecting element (9) and a second stop element (25) which can be moved from the release position into the path of movement of the first stop element (24).

Description

Door unlocking device for a door or flap of a motor vehicle

Technical Field

The invention relates to a door unlocking device for a door or a door of a motor vehicle, comprising a swingably mounted door handle, a door lock that can be actuated by the door handle and is designed to lock the door to a frame and to release the lock when the door handle is actuated, wherein the door handle is coupled to the door lock for actuation thereof by means of at least one mechanical connecting element, and comprising an actuatable protective device that is designed to prevent or make difficult the opening of the door/cover as required.

The invention further relates to a safety system for a vehicle, in particular a motor vehicle, having at least one pivotable door or flap, having a door unlocking device, as already described above, associated with the door or flap, and a device for detecting an object located in the pivot range of the door/flap or moving in the direction of the pivot range, wherein, when such an object is detected, the device recognizes a need and actuates a protective device.

Background

Door unlocking devices and security systems of the type mentioned at the outset are known from the prior art. Thus, for example, document DE 102011010242 a1 discloses a safety system for a motor vehicle, which is intended to prevent collisions between external objects and doors or other latches of the vehicle. For this purpose, the pivoting range of the door or the surrounding area of the vehicle with respect to an object which can be moved or moved into the pivoting range of the door or of the cover is monitored by means of a sensor device. If an object of this type is detected, opening or swinging of the door or cover is made difficult or prevented by generating a force acting against the door opening movement. It is provided here that the force acting counter to the opening movement is also provided variably, for example, to gradually limit or slow the movement of the door with respect to the object as a function of the proximity (Naehe). In order to influence the door movement, it is proposed here to provide a fluidic device or a damper, alternatively an electric device, a piezoelectric device and/or a magnetic material.

Due to the large lever with which a door or a cover can be applied to this type of protective device, a high force is required for acting against the opening movement, which results in a correspondingly large-sized protective device. The use of this type of protection device therefore entails high structural costs for the entire vehicle, in order to be able to install and fix the necessary components.

Disclosure of Invention

The object of the present invention is therefore to provide a door unlocking device and a security system which satisfy the desired security functions in a cost-effective and space-saving manner and which in particular also allow subsequent integration into a vehicle.

The object set forth by the invention is achieved by a door unlocking device according to the invention. This has the advantage that the advance is counter-acting with respect to the door opening movement, i.e. also before the door itself swings. Instead, the protective device already acts upon the actuation of the door handle and prevents or makes difficult the movement thereof, so that the user cannot unlock the door or only makes difficult the unlocking thereof from the frame in a safety situation and therefore cannot swing open either. Since the force required to pivot the door handle is usually less than the force required to pivot the door, only a correspondingly small counter force must also be generated or provided in order to make unlocking the door, or rather the door lock, difficult or prevent unlocking by means of the protective device. The protective device can thus be configured to be significantly smaller in size than previous protective devices and also allows a later integration into the door, specifically into the door unlocking device. According to the invention, this is achieved in that the protective device has a first stop element which is arranged fixedly at the connecting element and a second stop element which can be moved from the release position into the path of movement of the first stop element. The protective device thus mechanically prevents or makes difficult a swinging movement of the door handle and thus an unlocking of the door lock, by moving the second stop element into the path of movement of the first stop element, so that the stop elements jam against one another and thus at least initially prevent a further movement of the connecting element coupled to the door handle and the door lock. Preferably, the connecting element is connected to the door handle and the door lock in such a way that the connecting element moves in translation, to be precise is pushed or pulled, when the door handle is pivoted. Accordingly, the second stop element is or can be arranged in the direction of movement of the connecting element through the protective device. Alternatively, it is provided that the connecting element is coupled to the door handle and the door lock in such a way that it is rotated about a longitudinal axis in the form of a cardan shaft (gelenkwell) by pivoting the door handle in order to actuate the door lock. In this case, the first stop element rotates together when the door handle is actuated, so that the second stop element can be moved, expediently by the protective device, in the path of movement of the first stop element in such a way that it acts counter to the torque of the first stop element or the connecting element. In both cases, the protective device prevents a further movement of the connecting element and thus the actuation of the door lock by the door handle in a form-fitting manner. Since the connecting element is also mechanically coupled to the door handle, once the first stop element strikes the second stop element, no further movement of the door handle is possible, so that the user knows from the tactile feedback of the system, in particular for safety reasons, that the door should be prevented from opening, for example because the object is located in the pivoting range of the door or the cover.

According to an advantageous development of the invention, it is provided that at least one of the stop elements is configured to be elastically deformable in such a way that it can be elastically deformed by the other stop element by pivoting the door handle until the locking is released. The stop element can then be elastically deformed to such an extent that complete unlocking of the door lock is ensured. This also enables the user to unlock the door lock when the protective device is activated, even with only a high expenditure of force. In particular, one stop element is designed to be elastically deformable in such a way that it can be overcome by the other stop element by a further pivoting movement of the door handle. At least one of the stop elements is then configured to be elastically yielding, so that by applying a correspondingly high actuating force to the door handle, at least one stop element is elastically deformed to such an extent that the other stop element moves past this point or continues to move at least to such an extent that the door lock is unlocked and the door or the door can be opened. This ensures that the user can open the door anyway, so that an emergency opening of the door or flap is possible at any time. However, due to the higher force consumption achieved for this purpose by the elastic deformation of the at least one stop element, the user feels haptically that, in particular, when the door is opened, there is a risk of collision with an object located in the surroundings, so that the driver's attention is increased. In particular, the second stop element is configured to be elastically deformable. Alternatively, the first stop element is configured to be elastic. According to a further embodiment, it is provided that the two stop elements are configured to be elastically deformable.

According to a preferred development of the invention, an actuatable actuator is associated with the second stop element, which moves the second stop element into the path of movement of the first stop element or into the release position. In the event of a demand, the second stop element can thus be moved in the path of movement of the first stop element in a targeted manner by the actuator. By making the actuator controllable, the advantage is obtained that the second stop element protection device exerts its function only in the case of demand, in particular when the object is in or moves into the range of pivoting of the door, and otherwise does not prevent pivoting of the door handle, in particular unlocking of the door lock. The protective device expediently has a control unit or is connected to it, which determines the demand and actuates the actuators accordingly. The door unlocking device can be configured as an internal device or as an external device at a door of the motor vehicle, so that the door handle is arranged either internally or externally at the door. The door unlocking device may also have two door handles, one of which is arranged at the outside of the vehicle and one of which is arranged at the inside of the vehicle facing the vehicle interior space, so that a user can unlock the door from the outside and from the inside. The door handle is in this case operatively connected to the door lock via the connecting element or via a common connecting element. The actuator can be associated both with the inner and with the outer control link, so that the actuator interacts either with the connecting element of the door handle arranged on the outside or with the connecting element of the door handle arranged on the inside or with both.

It is furthermore preferably provided that the actuators are designed to be electrically, hydraulically, pneumatically and/or electromagnetically operated. The advantage is obtained here that the actuator, after it has been actuated, moves the second stop element into the path of movement of the first stop element within a short time interval, so that the protection device responds as required in a short time and thus ensures safe collision protection.

It is furthermore preferably provided that a switching device is associated with the path of movement of the first stop element, the door handle, the actuator, the door lock and/or the connecting element, which switching device generates an actuation signal for the actuator when the first stop element is moved past the switching device by pivoting the door handle. The switching device is thus associated with a moving part in the control link from the door handle to the door lock, i.e. the switching device detects the movement of the control link. In an advantageous embodiment, it is provided that the switching device is located in the path of movement of the first stop element, since this can be easily accessed and thus can be used in a space-saving manner. The switching device is expediently arranged between the first stop element and the second stop element in the initial position of the first stop element, in particular adjacent to the first stop element. This is achieved in that, when the door handle is pivoted, to be precise, by a user, the first stop element initially engages the switching device, so that an actuation signal for activating the actuator, to be precise, for moving the second stop element is generated. Thus, the actuator is only operated or manipulated when the user actually swings the door handle to open or unlock the door or lid. Preferably, however, the actuator moves the second stop element into the path of movement of the first stop element only when there is a second actuation signal indicating a need for activating the protective device for the user to actuate the door handle, in particular when the object is in the pivoting range of the door or the cover and there is a risk of collision with the object when the door or the cover is opened. In order for the actuator to move the second stop element into the path of movement of the first stop element, i.e. into the protective position, two conditions must then be met: on the one hand, the need for making opening of the door difficult or preventing opening of the door must be identified and indicated, and on the other hand the user must indicate a willingness to open the door by actuating the door handle. This achieves that the actuator is activated only when necessary, so that wear and energy consumption are minimized.

It is furthermore preferably provided that the switching device has a switch which is located in the movement path of the first stop element, the door handle, the actuator, the door lock and/or the connecting element and can be moved/actuated by the first stop element. The mechanical actuation of the switching device is thereby effected by the first stop element itself, which results in the generation of an actuation signal for the actuator and the transmission thereof to the actuator or to the already mentioned control unit. Thereby, a reliable handling of the protection device is ensured. Alternatively, it is preferably provided that the switching device has a contactlessly actuable switch, in particular an optical or capacitive switch, which is assigned to the first stop element and responds to a movement of the first stop element by generating a first actuating signal. Furthermore, the element of the activation switch device of the door unlocking device does not necessarily have to be the first stop element. In contrast, according to another embodiment, it is provided that an activation element is arranged in addition to the first stop element at the connecting element, which only interacts with the switching device. The first stop element and the activation element can thereby be arranged spatially separated from one another and the installation space available for the protective device can be optimally utilized.

According to a preferred refinement of the invention, it is provided that the actuator is configured to move the second stop element along the path of movement of the first stop element. As a result, the distance between the first stop element and the second stop element is changed, to be precise shortened in the case of demand, by actuating the actuator. A particularly compact embodiment of the protective device is thereby ensured, since at least the above-described essential elements of the protective device are located in the longitudinal extension or movement direction of the connecting element, and a flat-design embodiment of the protective device is thereby achieved, so that it can be integrated in particular into a door or a cover in a simple and cost-effective manner. This also allows, in particular, a simple post-integration of the protective device into existing door unlocking devices.

It is furthermore preferably provided that the second stop element is a spring element, in particular a leg spring. The spring element, in particular the leg spring, offers the advantage that it generates a higher counter force with increasing elastic deformation and a soft, i.e. noiseless stop at the first stop element is achieved, and the spring element, in particular the leg spring, can be deflected or overcome sufficiently far by the first, in particular rigid, stop element by increasing the actuating force for unlocking. If the spring path of the spring element, to be precise the spring section of the leg spring, is designed to be correspondingly long, it is not necessary to completely overcome the leg spring by the first stop element in order to unlock the door lock. Conversely, the door lock is already unlocked before the first stop element has completely overcome the second stop element. This offers the advantage that the protective device can be brought back into its initial position in a simple manner, without the first stop element having to elastically deform the second stop element again and having to overcome the second stop element in the case of a return. In addition to being designed as a helical torsion spring, the spring element can alternatively also be designed as an elastomer element or as an additionally designed spring element, for example as a helical spring, a spiral spring (Spiralfeder) or the like.

It is furthermore preferably provided that the connecting element is a cable, in particular a cable of a Bowdenzug cable. The connecting element can thereby be flexibly guided in the door or in the cover and provides structural freedom in the case of the assembly and design of the door unlocking device. In order to ensure that the second stop element can be moved into the path of movement of the first stop element, the protective device expediently has a housing through which the connecting element, in particular the cable, is guided longitudinally, so that a defined position and a defined path of movement of the first stop element are obtained. In addition, the actuator is arranged in a fixed manner in the housing together with the second stop element housing, so that a reliable interaction of the first stop element and the second stop element is ensured as required. According to an advantageous embodiment of the invention, the cable is guided from the door handle to the door lock via one or more deflecting rollers, so that a desired cable course in the door is ensured, which in particular ensures a cooperation with the protective device. Preferably, according to a further embodiment, the connecting element is configured as a soft jacket cable with a cable guided in a particularly pressure-resistant sheath. Furthermore, it is provided according to a preferred embodiment that the connecting element is designed as a connecting rod or as a connecting rod connection, whereby pressure can also be transmitted.

The security system according to the invention is characterized by an embodiment according to the invention of the door unlocking device. The advantages already stated are thereby obtained. Further advantages and preferred features and combinations of features result, inter alia, from the above description.

Drawings

The invention is explained in detail below on the basis of the drawings. Wherein:

fig. 1 shows, in a simplified diagram, a door of a motor vehicle with a security system, an

Fig. 2A to 2C show the protection device of the safety system in different operating states.

List of reference numerals

1 Motor vehicle

2 frame

3 door opening

4 door

5 door lock

6 closing hook

7 closing bolt

8 swing hinge

9 connecting element

10 door handle

11 stay cable

12 soft sleeve steel wire rope

13 sheath

14 door unlocking device

15 arrow head

16 arrow head

17 protective device

18 security system

19 device

20 sensor

21 casing

22 coupling

23 arrow head

24 stop element

25 stop element

26 spiral torsion spring

27 spring frame

28 actuator

29 switching device

30 switches.

Detailed Description

Fig. 1 shows a section of a motor vehicle 1 in a simplified representation, which has a door opening 3 in a frame 2, in which door opening 3 a door 4 is pivotably mounted by means of a pivot joint 5 (only shown here in a simplified representation) in order to release or close the door opening 3. In its closed state, the door 4 can be locked by means of the door lock 5 at the frame 2, so that the door 4 cannot be opened automatically. For this purpose, the door lock 5 has a closing hook 6 arranged on the door 4, which interacts in a form-fitting manner with a closing bolt 7 arranged fixedly on the frame 2 in the locked state. The closing hook 6 is mounted so as to be pivotable about an axis via a pivot joint 8, in order to release the closing bolt 7 as required, so that the door 4 can be opened.

For actuating the door lock 5 or for moving the closing hook 6, the closing hook 6 is connected via a mechanical connecting element 9 to a door handle 10 which is pivotably mounted on the inside, i.e. on the side of the door 4 facing the vehicle interior. The connecting element 9 is in this case designed as a cable 11 of a sheathed wire 12, which additionally has a sheath 13 that is resistant to pressure in the direction of tension. In this regard, the door handle 10, the soft sleeve wire 12 and the lock 5 form a door unlocking device 14 for the door 4, as is known. By pivoting the door handle 10 in the actuating direction, as indicated by the arrow 15, the cable 11 is tensioned in such a way that it releases the closing hook 6 from the closing bolt 7 and the door 4 can be pivoted out of the door opening 3 according to the arrow 16 in order to release the door opening 3.

The sheathed wire 12 or the connecting element 9 is now associated with a protective device 17, which is part of a safety system 18. In addition to the protective device 17, the safety system 18 also has a device 19 for monitoring the pivoting range of the door 4. For this purpose, the device 19 has a contactless sensor 20, which monitors the pivot range and the surroundings of the motor vehicle 1 with respect to an object, which is located in the pivot range of the door 4 or is moved in the direction of the pivot range of the door 4, for example by means of ultrasound. If such an object is detected by means 19, the recognized need is that the opening of the door 4 can lead to a collision with the object and thus the protection device 17 is actuated to avoid the collision.

The protection device 17 should be described in detail with reference to fig. 2A to 2C. Fig. 2A to 2C show various operating states of the protective device 17, wherein the structure of the protective device 17 should first be explained in principle with reference to fig. 2A.

The protective device 17 has a housing 21, which can be fixed in the door 4. The housing 21 has two connections 22 for the soft jacket wire 12. The housing 21 breaks the sheath 13 of the steel cord for soft casing 12, wherein the remaining sheath part 13 is fixed at the coupling 22 of the housing 21, so that the compressive resistance of the sheath 13 is maintained as a whole, viewed in the longitudinal direction of the steel cord for soft casing 12. The cable 11 of the soft sleeve wire is guided linearly through the housing 21. Now, if the door handle 10 is swung according to arrow 15, the cable 11 is pulled through the housing 21 in the direction of the door handle 10 according to arrow 23.

At the cable 11, the first stop element 24 is fixedly arranged within the housing 21 such that it moves together with the cable 11. The stop element 24 is currently configured in the form of a drum, which is arranged coaxially with respect to the cable 11. It is thus achieved that the stop element 24 cannot lose its function even if the cable 11 is to be rotated, due to its circularly symmetrical design.

In the housing 21, a second stop element 25 is furthermore arranged, which is embodied as a leg spring 26 and is arranged on a spring carrier 27 in such a way that a spring leg of the leg spring 26 extends in the direction of the cable 11 in such a way that, when the door handle 10 is pivoted in the actuating direction according to the arrow 15, a free end of the spring leg lies in the path of movement of the first stop element 24. The spring bracket 27 fixes the leg spring 26 at its end facing away from the cable 11, so that the free end can only be displaced with respect to the end that remains fixed when the leg spring 26 is elastically deformed.

The spring bracket 27 itself is supported in the housing 21 in such a way that it can be displaced parallel to the longitudinal extension of the cable 11 by means of the actuator 28. The actuator 28 is in particular designed as an electric actuator, which, when actuated, to be precise energized, moves the spring bracket 27 and thus the leg spring 26 or the second stop element 25 parallel to the cable 11 by the actuator 28. Fig. 2A shows an initial position of the protective device 17, in which the leg spring 26 or the second stop element 25 is spaced apart from the first stop element 24.

Furthermore, a switching device 29 is arranged between the

stop elements

24 and 25, which switching device is associated in particular in the initial position with the first stop element 24. The switching device 29 has an actuatable switch 30, which is located in the path of movement of the stop element 24. In the initial position shown in fig. 2A, the switch 30 is configured adjacent to the stop element 24, so that, as soon as the door handle 10 is pivoted, the switch 30 is first, in particular, directly pushed over by the stop element 24 and is actuated thereby. The switching device 29 thus generates an actuation signal for the actuator 28, which is supplied in particular to the control of the safety system 14.

The operation of security system 18 will be described below with respect to fig. 2A through 2C. In the initial state described above, as shown in fig. 2A, the door 4 is held in a locked manner by the door lock 5 at the frame 2 and the door handle 10 is also in its initial position. According to the device 19, the surroundings of the motor vehicle 1 are monitored with respect to objects which are located in the pivoting range of the door 4 or are moved in the direction of the pivoting range, so that a collision with the door 4 can occur when the door is pivoted open.

First, a case should be considered in which the device 19 does not detect an object of this type. Now, if the user actuates the door handle 10 and swings it in the actuation direction according to arrow 15, the cable 11 is pulled according to arrow 23, i.e., the stop element 24 is moved in the direction of the stop element 25. In this case, the stop element 24 first engages the switch 30 of the switching device 29, and the switching device 29 activates the control signal for the actuator 28 and supplies it to the control unit. The control unit, which also detects the data of the device 19, recognizes that there is no need to possibly hinder the user in the event of opening the door 4 and therefore no actuation signal is transmitted to the actuator 28. If the user continues to move the door handle 10, the closing hook 6 is released from the closing bolt 7 and the door 4 is thereby unlocked. In this regard, normal unlocking of the door 4 occurs. In the normal case, the distance between the

stop elements

24 and 25 is therefore selected such that a simple unlocking of the door is ensured.

In the following, the case is considered in which the object is located in the pivoting range of the door 4 and is detected by the device 19. In this case, a requirement flag (Bedarfmarker) is set, for example by the controller, to be precise to determine the requirement for making the door opening difficult or preventing it. Now, if the door handle 10 is pivoted so that the stop element 24 actuates the switch 30, the actuating signal for the actuator 28 is transmitted to the actuator 28, so that the actuator moves the spring bracket 27 and the stop element 25 parallel to the cable 11 in the direction of the switching device 29, specifically the stop element 24, so that the distance between the

stop elements

24,25 decreases, as is shown in fig. 2B. In particular, the distance is reduced in such a way that the leg spring 26 bears almost against the stop element 24. Now, if the user continues to swing the door handle 10 in the direction of arrow 15, it pulls the stop element 24 against the torsion coil spring 26. The leg spring 26 acts with its spring force counter to the direction of movement of the stop element 24 and of the door handle 10, so that the user feels a greater resistance in the case of actuating the door handle 10. The driver is thus tactilely made to feel in a simple manner that he is at risk of colliding with objects in the surroundings when opening the door 4. If the user nevertheless wishes to open the door 4, he can release the locking of the door lock 5 by overcoming the spring force of the leg spring 26, as shown in fig. 2C. Thereby, an emergency opening of the door 4 is ensured, so that the door 4 can be opened by the user at any time. However, the user already feels a collision risk because of the higher counter force.

If the user has finished actuating the door handle 10, the leg spring 26 pushes the stop element 24 and likewise the door handle 10 back into the initial position. If appropriate, a separate spring element can also be associated with the door handle 10 and a further spring element can also be associated with the closing hook 6, which spring elements each force the door handle and the closing hook back into their respective initial positions, so that the safety system 1 returns into its initial position without further actuation by the user. If the stop element 24 is disengaged from the switch 30, the actuation of the actuator 28 is ended and the second stop element 25 likewise returns to its initial position according to fig. 2A.

The present exemplary embodiment relates to the design of the connecting element 9 as a flexible-tube cable 12, while according to another exemplary embodiment not shown here it is provided that the connecting element 9 is a cable which is guided through the door by means of one or more deflecting rollers. It is also conceivable for the connecting element to be designed as a rod-shaped connection (stangenverbunding) between the door handle 10 and the door lock 5, so that pressure can also be transmitted via the connecting element. In the present exemplary embodiment, the door handle 10 is configured as an outer door handle, to be precise, at the door 4, and according to a further exemplary embodiment, it is provided that the door handle 10 is configured/arranged as an inner door handle at the door 4. It is also conceivable for the door unlocking device 14 to have two door handles, one of which is arranged on the outside and the other on the inside, wherein the two door handles are mechanically coupled to the door lock, for example, by means of a common connecting element 9 as has been described at the present time or by means of a respective connecting element 9. The actuator 28 may be associated with a door handle located on the outside or a door handle to door lock kinematic chain located on the inside.

In addition to the embodiment as torsion coil spring 26, it is alternatively also conceivable for first stop element 24 to be designed as an elastomer element or as a differently designed spring element, for example as a coil spring, leaf spring (Blattfeder), spiral spring, etc. Furthermore, it is also conceivable for the switch 30 to be arranged at any point in the kinematic chain between the door handle and the door lock, so that the switching device, in particular as a microswitch, is located in the path of movement of the kinematic chain. In this way, the switch 30 can also be associated with, for example, the door handle 10, the actuator 28, the bowden cable 12 or the door lock 5.

Since the protective device 17 is advantageously integrated into the door unlocking device such that it is associated with the flexible tube cable 12, a subsequent integration or a subsequent replenishment of the existing door unlocking device is also easily achieved. Due to the advantageous arrangement of the components of the protective device 17, the protective device is space-saving and can be integrated well, for example, into the cavity of the door 4.

Claims

1. Door unlocking device (14) for a door (4) or a flap of a motor vehicle (1), having a swingably mounted door handle (10), a door lock (5) which can be actuated by means of the door handle (10) and which is designed for locking the door (4)/flap at a frame (2) and releasing the lock when it is actuated by means of the door handle (10), wherein the door handle (10) is coupled to the door lock (5) by means of at least one mechanical connecting element (9) for its actuation, and having an actuatable protective device (17) which is designed to prevent or make difficult the opening of the door (4)/flap as required, characterized in that the protective device (17) has a first stop element (24) which is arranged fixedly at the connecting element (9) and a second stop element which can be moved from a release position into the movement path of the first stop element (24) A stop element (25), wherein the protective device prevents or makes difficult a pivoting of the door handle and thus an unlocking of the door lock when the second stop element is moved into the path of movement of the first stop element.

2. The door unlocking device as claimed in claim 1, characterized in that at least one of the stop elements (24,25) is configured to be elastically deformable in such a way that it can be elastically deformed by the other of the stop elements (25,24) by a swinging movement of the door handle (10) until the locking is released.

3. Door unlocking device according to any of the preceding claims 1 to 2, characterized in that an actuatable actuator (28) is associated with the second stop element (25), which moves the second stop element (25) into the movement path of the first stop element (24) or into a release position as required.

4. Door unlocking device according to claim 3, characterized in that the actuator (28) is configured to be electrically, hydraulically, pneumatically and/or electromagnetically operated.

5. Door unlocking device according to claim 3, characterized in that a switching device (29) is associated with the movement path of the first stop element (24), the door handle (10), the actuator (28), the door lock (5) and/or the connecting element (9), the switching device (29) generating a control signal for the actuator (28) when the first stop element (24) reaches the switching device (29) by a movement of the door handle (10).

6. Door unlocking device according to claim 5, characterized in that the switch device (29) has a switch (30) which is located in the movement path of the first stop element (24) and which can be moved/operated by means of the first stop element (24).

7. Door unlocking device according to claim 3, characterized in that the actuator (28) is configured for moving the second stop element (25) along the movement path of the first stop element (24).

8. Door unlocking device according to any of the preceding claims 1 to 2, characterized in that the second stop element (25) is a helical torsion spring (26).

9. Door unlocking device according to any of the preceding claims 1 to 2, characterized in that the connecting element (9) is a cable (11).

10. Door unlocking device according to any of the preceding claims 1 to 2, characterized in that the connecting element (9) is a cable of a soft sleeve wire (12).

11. A security system (18) for a vehicle, wherein the vehicle has at least one pivotable door (4) or flap, wherein the security system (18) has a door unlocking device (14) associated with the door (4) or flap, having a movably mounted door handle (10) and a door lock (5), wherein the door handle (10) is coupled to the door lock (5) by means of at least one mechanical connecting element (9), wherein the door lock (5) is designed to lock the door (4) to a frame (2) of the vehicle and to release the lock in the event of a pivoting of the door handle (10) in an actuating direction, wherein the security system (18) has an actuatable protective device (17) which is designed to prevent or make difficult the opening of the door (4) or flap as required, and wherein the security system (18) has a sensor for detecting a position in or in the pivoting range of the door (4) or flap Detection device (19) for an object moving in a direction, wherein the detection device (19) actuates the protective device (17) in the event of detection of such an object, characterized by the embodiment of the door unlocking device (14) according to one of claims 1 to 10.

12. The safety system (18) according to claim 11, wherein the vehicle is a motor vehicle (1).