Motor vehicle locks

Abstract

The invention relates to a motor vehicle lock, in particular a motor vehicle door lock, which has a locking device (1, 2), which mainly includes a rotary lock fork (1) and a locking claw (2). In addition, an electric drive device (4, 5, 6) is provided for the locking device (1, 2). The electric drive device (4, 5, 6) has a drive element (6) that can be loaded in at least one direction of movement and a reverse direction of movement. In addition, the drive element (6) can be controlled to achieve at least one safety position and an open position of the locking device (1, 2). According to the invention, the drive element (6) is moved in the direction of movement to first achieve the safety position of the locking device (1, 2), and in another movement to achieve the open position of the locking device.

Description

Technical Field

[0001] The present invention relates to a motor vehicle lock, in particular a motor vehicle door lock, which has a locking device / locking mechanism and an electric drive device for the locking device, wherein the locking device mainly includes a rotating lock fork and a locking claw, wherein the electric drive device has a drive element that can be loaded in at least one movement direction and in a reverse movement direction, wherein the drive element can be used to control at least one safety position and an open position of the locking device. Background Art

[0002] The motor vehicle lock mentioned is not necessarily a motor vehicle door lock. Other motor vehicle locks are also included within the scope of the invention, such as motor vehicle hood locks, motor vehicle rear hatch locks, motor vehicle locks for rear covers and fuel tank caps, etc. Therefore, the term motor vehicle lock can be interpreted in a broad sense.

[0003] Motor vehicle door locks must be able to be moved into different functional positions depending on their design and installation location. Therefore, in the case of rear motor vehicle side door locks, they usually need to be moved into a child safety position and a child safety release position. In the child safety position, the relevant motor vehicle side door lock cannot be opened from the inside. However, it can still be opened from the outside. In contrast, the child safety release position corresponds to the relevant motor vehicle side door lock being able to be opened both from the inside and from the outside.

[0004] In addition to this child safety function and the associated safety position of "child safety" or non-safety position of "child safety released", there are other safety positions. This includes, for example, the safety position of "locked or centrally locked" or the non-safety position of "unlocked or centrally unlocked". In addition, within the scope of the present application, the terms "safety position" or "non-safety position" also include other functional positions of the motor vehicle door lock, such as "anti-theft safety" and "anti-theft safety released". For example, the "locked" position corresponds to the relevant motor vehicle door lock cannot be opened from the outside, but can be opened from the inside, while the "anti-theft safety" position corresponds to the motor vehicle door lock can neither be opened from the outside nor from the inside.

[0005] Therefore, the term "safety position" or "non-safety position" can be interpreted broadly within the scope of the present application and includes the functional positions described above by way of example, i.e., for example, "child safety lock", "anti-theft lock", "locked" and "unlocked", etc. Nowadays, all these safety positions are generally realized in a motorized manner, for which purpose electric drives are or can be used.

[0006] Furthermore, such an electric drive or another electric drive is generally used for a locking device in order to enable an electric opening of the locking device. This relates to the above-mentioned open position of the locking device, in which the electric drive is usually used indirectly or directly to disengage the locking pawl from its engagement with the rotary latch in the closed state of the locking device. This can be achieved—as described above—indirectly or directly, i.e., for example with an interposed release lever or also directly without such a release lever.

[0007] In the prior art, there are already solutions that reduce the number of electric drives and present different functions by means of the same electric drive. Thus, for example, document DE 10 2016 112 260 A1 relates to an electrically operated motor vehicle lock, in which a release lever can be at least indirectly operated by means of the electric drive. In addition, there is a so-called secondary lock, which also has a locking device with a rotating lock fork and at least one locking claw. The locking device of the secondary lock can be unlocked by means of the above-mentioned electric drive. In this way, in addition to electrically opening the own motor vehicle lock, the secondary lock can also be opened electrically by means of the same electric drive.

[0008] The applicant's document WO 2019 / 233518 A1 also relates to a side door lock for a motor vehicle, which is particularly electrically driven. The side door lock has an electric drive unit, which has a motor and a driven disk driven by the motor. The driven disk actuates a release lever. In addition, at least one other function, particularly anti-theft protection, can be realized by means of the driven disk.

[0009] The specific design here is that the locking device can be opened by taking into account the first pivoting movement of the driven disk. The anti-theft safety and / or child safety can be engaged by means of a second pivoting movement of the driven disk opposite to the first pivoting movement. In addition, an operating lever, a first connecting rod and a second connecting rod are also realized, which have the final effect of being used to engage the anti-theft safety or child safety and also to release or release the safety. This has been proven to be effective in principle, but there is still room for improvement in terms of simplifying the structure.

[0010] The prior art according to document EP 1 113 133 A1 relates to a motor vehicle door lock with child safety. For this purpose, an electric drive device with a drive element is provided, which can be driven in two opposite directions of movement. In addition, the drive element can be selectively reset to an inactive position. The child safety function is realized by controlling in the direction of movement of the drive element. Other functions of the motor vehicle door lock, such as an opening function or a central locking function, can be realized in the opposite direction of movement. Within the scope of the opening function, the locking claw is lifted.

[0011] Furthermore, the child safety function can be activated manually or by means of an electric drive. For this purpose, a so-called ball tracking mechanism or the like is provided, which has a heart-shaped slide with an upper and a lower resting point. In this case, a relatively complex structure is also present.

[0012] The prior art has been proven in principle, but partly uses relatively complex structures, which increases the technical complexity and also the costs. The present invention remedies this as a whole. Summary of the invention

[0013] The technical problem to be solved by the present invention is to further improve such a motor vehicle lock, in particular a motor vehicle door lock, so as to further reduce the structural complexity and the economic cost compared with previous embodiments.

[0014] In order to solve this technical problem, the present invention proposes, for this type of motor vehicle lock, in particular a motor vehicle door lock, that a drive element as a component of an electric drive device is moved in a movement direction to first achieve a safety position of the locking device and to achieve an open position of the locking device in another movement (in the same movement direction). In addition, it is advantageously designed that the drive element is moved in a reverse movement direction to achieve a non-safety position.

[0015] Therefore, the present invention proposes that the direction of movement of the drive element corresponds to the ability to achieve not only the safety position of the locking device, but also the open position of the locking device. However, only the non-safety position is achieved by manipulation in the opposite direction or reverse movement direction of the drive element. This design has the following advantages: In this way, all important functional positions of the motor vehicle lock according to the present invention, including electric opening, can be presented and achieved by means of (only) one electric drive device. Here, the present invention is also based on the following recognition: Manipulation along the one movement direction to achieve the safety position and the open position can avoid malfunctions and the manipulation can be particularly simple and reliable to achieve and implement. Because most of the time it is also designed that a spring is provided for the drive element, which is used to enable it to be in an inactive position after the drive element is manipulated. That is to say, for example, after reaching the safety position along the movement direction, the drive element is first returned to the inactive position by means of a spring. This avoids the unintentional opening of the motor vehicle lock.

[0016] The spring assigned to the drive element is usually a so-called central zero spring, which resets the drive element to the inactive position after it has been actuated in the direction of movement and in the reverse direction of movement. This is because the loading of the drive element in the direction of movement and in the reverse direction of movement both causes the deflection and tensioning of the central zero spring, and the central zero spring is only unloaded again when the drive element reaches the inactive position again after it has been actuated.

[0017] Functional reliability is further improved by the following means: a locking element for the electric drive is advantageously provided. Here, the locking element is usually acted upon by means of a spring so as to be spaced apart from the drive element. That is, the locking element is usually kept spaced apart from the drive element by means of a spring. However, when realizing the safety position or the non-safety position, it is usually designed that the drive element moves against the locking element. That is, once the safety position and / or the non-safety position is realized on the drive element, the electric drive and the spring assigned to the locking element are simultaneously used to swing the locking element from the position spaced apart from the drive element that it usually occupies toward the drive element. In principle, the realization of the swinging position or the locking position of the locking element can also be implemented in other ways and methods. In addition, it is designed within the scope of the present invention that the locking element can first occupy the locking position. As a result, the locking element can have its original function within the plan, that is, to lock the drive element so that it realizes the safety position and / or the non-safety position.

[0018] In order to implement and realize this specifically, the drive element advantageously has at least one shaped portion. The shaped portion is generally used to keep the locking element against the drive element to achieve a safety position and / or a non-safety position. For this purpose, the shaped portion on the drive element can interact with the matching shaped portion on the locking element. That is, once the electric drive device is used, for example, to swing the locking element relative to the drive element to be in its locking position or transition to a position overlapping the drive element, the shaped portion on the drive element ensures that as long as the shaped portion interacts with the locking element, the locking element cannot (anymore) leave the swing-in position or the locking position. This ensures that the drive element, for example, moves along the direction of motion to the locking element in the locking position and thereby achieves the safety position. At the same time, the drive element is used to manipulate the safety lever to achieve the safety position.

[0019] Since the drive element is equipped with the above-mentioned spring, in particular the center zero spring, the drive element returns to the inactive position after it has been actuated. This results in the shaped portion on the drive element, which previously fixed the blocking element, releasing the blocking element, which thus transitions into its spaced position while being loaded by its spring. This spaced position of the blocking element corresponds to the fact that the blocking element no longer overlaps the drive element and can therefore no longer interact with the drive element and release the drive element. In this case, the safety lever remains unchanged in its safety position.

[0020] According to another advantageous design, the drive element is provided with a safety operating pin for the above-mentioned safety lever on one side. This allows the safety lever to be in a safety position and / or a non-safety position. In the safety position, the safety operating pin is moved to abut against the blocking element. Thus, the invention ensures that the safety position occurs with a defined position of the drive element, and thus of the electric drive.

[0021] This is also true for the non-safety position. In this case, it will also occur that the relevant safety operating pin moves against the locking element, which ensures in this way that the non-safety position in terms of the electric drive is occupied as specified.

[0022] As mentioned above, the safety operating pin for the safety lever is located on one side of the safety lever of the drive element. In addition, the drive element is provided with an additional opening operating pin on the opposite side. The opening operating pin acts on the release lever to achieve the open position. Therefore, after the drive element of the electric drive device has been in the safety position and the safety lever has also been in the safety position, the drive element is returned to the inactive position by means of the loading of the central zero spring. At the same time, the shaped part on the drive element releases the blocking element, which is transferred from its previously locked position to the spacing position by means of the provided spring.

[0023] If the drive element is loaded again in the direction of movement from the inactive position, the safety lever in the safety position and the blocking element in the spacing position allow unimpeded movement of the safety operating pin, so that the drive element can move beyond the safety position to the open position. In this open position, the opening operating pin on the opposite side of the drive element is used to act on the release lever. Loading the release lever causes the locking pawl to disengage from its engagement with the rotary latch, so that the locking device as a whole is opened and the open position is achieved.

[0024] Finally, according to an advantageous embodiment, the blocking element, the release lever and the safety lever are mounted coaxially as a whole. In this case, a common axis is used, which is arranged spaced apart from the axis of the drive element. Furthermore, the two axes extend substantially parallel to one another, so that the generally disk-shaped drive element and the rod or element are arranged and oriented substantially in the same plane or in parallel planes.

[0025] Thus, the present invention provides a motor vehicle lock, in particular a motor vehicle door lock, which realizes different functional positions of the locking device and the open position of the locking device in a structurally simple and functionally reliable manner by means of (single) electric drive device. The functional position of the locking device is at least one safety position or a non-safety position. The safety position may include a "locked or centrally locked" position and a "child safety" position. Correspondingly, the non-safety position corresponds to an "unlocked or centrally unlocked" position or a "child safety released" position. Generally speaking, however, the safety position may also include an "anti-theft safety" functional position, and correspondingly the non-safety position may include an "anti-theft safety released" functional position. This is the main advantage of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The invention is explained in detail below with reference to the accompanying drawings which show only one embodiment.

[0027] Figure 1 The motor vehicle lock according to the invention is shown in a perspective overview.

[0028] FIG. 2A to FIG. 2C It is shown that the securing position and the opening position are realized along the direction of movement of the drive element.

[0029] FIG. 3A to FIG. 3C It is shown that the non-safety position is realized on the drive element side, in particular in the reverse direction of movement.

[0030] List of reference numerals:

[0031] 1, 2 Locking device

[0032] 3 Release lever

[0033] 4 Motor

[0034] 5 Worm

[0035] 6. Driving components

[0036] 6a Open pin

[0037] 6b Safety operating pin

[0038] 7 Axis

[0039] 8 axis, inactive position

[0040] 9 Locking element

[0041] 10 Bumper

[0042] 10a Legs

[0043] 10b Legs

[0044] 11 Center zero spring

[0045] 12 Spring DETAILED DESCRIPTION

[0046] The figure shows a motor vehicle lock, which is, for example and without limitation, a motor vehicle side door lock. Figure 1 The main components of the motor vehicle side door lock are shown in , which include a locking device 1, 2 mainly composed of a rotary lock fork 1 and a locking pawl 2, which can be opened by means of a release lever 3 which will be described in more detail below.

[0047] For this purpose, the release lever 3 is acted upon by means of an electric drive 4, 5, 6. The electric drive 4, 5, 6 comprises an electric motor 4, a worm 5 on an output shaft and a drive element 6 which is rotated by means of the worm 5. According to this embodiment, the drive element 6 is a worm wheel which can perform movements in the clockwise direction and in the counterclockwise direction about its axis 7.

[0048] According to this embodiment, the drive element 6 is Figures 2A to 3C In the view of FIG. 1 , the movement in the clockwise direction corresponds to the movement direction. Therefore, in this view, the rotation of the drive element 6 around the axis 7 in the counterclockwise direction corresponds to the reverse movement direction. Figure 1 The direction of movement corresponds to the direction of motion in the perspective view of the drive element 6 due to the rear view. Figure 1 Counterclockwise rotation as shown. Figure 1 In the perspective view of FIG. 8 , a counterclockwise rotation of the drive element 6 about the axis 7 results in that the opening actuation pin 6 a on the drive element 6 can act on the release lever 3 . The release lever 3 is in turn mounted rotatably relative to the axis 8 .

[0049] The drive element or worm gear 6 is arranged according to Figure 1 The counterclockwise movement in the illustration now causes the opening actuation pin 6a to move against the release lever 3. As a result, the release lever 3 moves in the clockwise direction relative to its axis 8 and acts on the pawl 2 in the counterclockwise direction shown there. As a result, the pawl 2 is lifted relative to the rotary latch 1, so that the rotary latch 1 can be moved from the clockwise direction to the left under the support of the spring. Figure 1The closed position shown is pivoted up and the previously caught and not shown locking pin / stop is released. Corresponding to this is the electric opening process of the locking device 1, 2 by means of the electric drive 4, 5, 6. In this case, i.e. when the opening actuating pin 6a opens the locking device 1, 2 via the release lever 3 as described above, the drive element 6 is also in its open position.

[0050] In addition to the open position, the drive element 6 can also be moved to achieve at least one safety position. Figures 2A to 3C The implementation of the safety position and the corresponding non-safety position is shown in FIG. FIG. 2A to FIG. 2C The diagram of corresponds to the realization of the insurance position, while Figure 3A to Figure 3C The realization of the non-safety position is shown in FIG.

[0051] According to this embodiment and according to the invention, the drive element 6 is first in the safety position in the direction of movement. FIG. 2A to FIG. 2C In the view of FIG. 1 , the clockwise rotation around the axis 7 corresponds to the clockwise rotation around the axis 7. In a further movement of the drive element 6 in the direction of movement, the drive element 6 is moved to achieve the above-mentioned open position of the locking device 1 , 2. The direction of movement is in accordance with FIG. 2A to FIG. 2C In the view of FIG. 6 , the drive element 6 corresponds to a clockwise rotation around its axis 7, which corresponds to the drive element 6 rotating around its axis 7 according to FIG. Figure 1 The counterclockwise rotation described in detail previously in the rear view of the embodiment corresponds to the open position achieved there. FIG. 3A to FIG. 3C In the view of FIG. 1 , the drive element 6 is moved in the counterclockwise direction to achieve the unlocked position or the non-safety position, which will be explained in detail below.

[0052] Thus, the basic structure also includes locking elements 9, 9' and a safety lever 10. According to the comparative observation of the accompanying drawings, as shown in the figure, the locking elements 9, 9', the release lever 3 and the safety lever 10 are supported coaxially as a whole. That is, the locking elements 9, 9', the release lever 3 and the safety lever 10 are respectively rotatably supported on the common shaft 8. The locking elements 9, 9' are equipped with two fork arms, which will be mentioned below.

[0053] In addition, the drive element 6 is provided with a safety operating pin 6b for the safety lever 10 on one side. As a result, the safety operating pin 6b on the drive element 6 can operate the safety lever 10 so that it is put into the safety position and the non-safety position as a whole, as will be explained in detail below. The drive element 6 has the above-mentioned opening operating pin 6a for the release lever 3 on the other side opposite, as shown in particular Figure 1In this way, the drive element 6 can be moved to achieve the open position of the locking device 1, 2.

[0054] The working principle is described below. Figure 2A In the embodiment, the locking devices 1 and 2 are located Figure 1 in the closed position shown. This may correspond to the main locking position. Figure 2A Departure, now heading Figure 2B 2C, the motor vehicle lock is controlled by means of the electric drive 4, 5, 6, thereby controlling the drive element 6 as a component of the electric drive 4, 5, 6 to achieve the safety position. For this purpose, the electric drive 4, 5, 6 drives the drive element 6 in the following movement direction: the movement direction is in accordance with FIG. 2A to FIG. 2C The range shown in the figure corresponds to a clockwise rotation of the drive element 6 about its axis 7 .

[0055] In accordance with Figure 2A In the position of the safety lever 10, the safety lever 10 is in its non-safety position. The blocking element 9, 9' is in its blocking position. In fact, the blocking element 9, 9' has two fork arms 9, 9', wherein FIG. 2A to FIG. 2C Only one fork arm is shown in FIG. 3A to FIG. 3C Another fork arm 9' is shown in the figure. For this purpose, the drive element 6 is provided with a shaped portion 6c, which is located on the same side of the drive element 6 as the safety operating pin 6b. The shaped portion 6c on the drive element 6 interacts with a mating shaped portion (not shown in detail) on the blocking element 9, 9', so that the shaped portion 6c and the mating shaped portion together ensure that the blocking element 9, 9' is held in place. Figure 2A in the locked position shown.

[0056] like Figure 2C As shown, the shaped portion 6 c has a defined length, so that during a counterclockwise rotation of the drive element 6 , the blocking elements 9 , 9 ′ are disengaged from the shaped portion 6 c , as will be explained in greater detail below.

[0057] In summary, the shaped portion 6c on the drive element 6 is based on Figure 2A The functional position of the locking element 9, 9' ensures that the locking element 9, 9' is in its locking position shown there. Here, the locking element 9 at least partially overlaps the drive element 6. The safety lever 10 is in its non-safety position. Figure 2A Starting from this functional position, the drive element 6 is acted on in the direction of movement, that is, according to Figure 2A to Figure 2CIf the drive element is acted on in a clockwise manner around the axis 7 in the view of FIG. 1 , the safety operating pin 6 b is moved to the leg 10 a against the U-shaped notch 10 a, 10 b of the safety lever 10. In fact, the U-shaped notch in the safety lever 10 is defined by two legs 10 a, 10 b on both sides.

[0058] As a result, the safety lever 10 is moved along the axis 8. Figure 2A The counterclockwise swing shown in FIG. Figure 2A Towards Figure 2B in the transition from its basis Figure 2A The non-safe position is moved to the corresponding Figure 2B Illustration of the fuse location.

[0059] The safety lever 10 may be a locking lever, a child safety lever, or a combined locking lever / safety lever and a transmission lever for a child safety function. Although not shown, an anti-theft safety lever is also possible. In summary, the safety lever 10 is Figure 2A The non-insurance position to the corresponding Figure 2B The transitions to the illustrated safety positions all correspond to the previously closed locking device 1 , 2 or the associated motor vehicle lock being additionally “locked” or “childproofed”. Alternatively or additionally, a “theft safety” functional position can also be achieved thereby.

[0060] In accordance with Figure 2B In the safety position, the leg 10a of the safety lever 10 releases the safety operating pin 6b and allows it to rotate further clockwise around the axis 7. However, since the locking elements 9, 9' are in their locking position during this process, this is because the interaction between the molded part 6c on the drive element 6 and the corresponding matching molded part of the locking elements 9, 9' holds the locking elements 9, 9' in the locking position, so the safety operating pin 6b moves to abut against the locking elements 9, 9' that are swung in relative to the drive element 6. As a result, the drive element 6 is stopped and the electric drive device 4, 5, 6 is stopped together with the drive element. As a result, the power supply to the motor 4 is also interrupted. As a result, the spring 11 assigned to the drive element 6 can ensure as a whole that the drive element 6 is in the inactive position (again) after it has been actuated. This inactive position of the drive element 6 corresponds to Figure 2A For this purpose, spring 11 is a center zero spring, i.e. a spring that is: Figure 2A Starting from the inactive position of the drive element 6 in , the drive element 6 is deflected accordingly when it moves in the clockwise direction and when it moves in the counterclockwise direction, and after the load is removed, it is ensured that the drive element 6 returns to the inactive position.

[0061] In accordance with Figure 2BIn the functional position, the safety lever 10 is now in its safety position and the drive element 6 is returned to the corresponding position by the force of the center zero position spring 11. Figure 2A The inactive position shown in the figure is Figure 2B By this counterclockwise rotation, the locking element 9 is disengaged from the molded portion 6c on the drive element 6 with its mating molded portion, as shown in FIG. Figure 2C As can be seen in the transition of . Because the locking element 9, 9 'has an associated spring 12, the spring is directed toward its Figure 2C The direction of the spacing position shown in the figure acts on the locking element 9, so that the locking elements 9, 9' are generally Figure 2B Starting from the functional position Figure 2C In the transition of , the drive element 6 is swung in the counterclockwise direction around the axis 8. As a result, the drive element 6 is completely separated from the locking elements 9, 9'.

[0062] If the drive element 6 is now acted upon again in the direction of movement starting from the inactive position, i.e. according to FIG. 2A to FIG. 2C , if the drive element is acted on in the clockwise direction about the axis 7, this clockwise rotation, that is to say a further movement of the drive element in the direction of movement, is permitted. This is because the safety actuation pin 6b can pass not only the arm or leg 10a of the safety lever 10, but also the blocking elements 9, 9' which are located in the spaced position. Figure 1 This means that, in the further movement of the drive element 6 in the movement direction, the locking device 1, 2 is controlled to achieve the open position. This is because the opening actuation pin 6a can now act on the release lever 3 to achieve the open position and ensure that the locking device 1, 2 is opened as described by the release lever 3.

[0063] exist FIG. 3A to FIG. 3C The realization of the non-safety position is shown in FIG. Figure 3A Corresponding to Figure 2C If you now Figure 3A If the drive element 6 is acted upon in the reverse direction of movement to achieve the non-safety position, this includes FIG. 3A to FIG. 3C In the view of FIG. 6 , the drive element 6 moves counterclockwise around the axis 7. The movement of the drive element 6 in the reverse direction causes the safety operating pin 6b to move counterclockwise to the other leg 10b of the U-shaped notch 10a, 10b of the safety lever 10. As a result, the safety lever 10 is moved from Figure 2B and Figure 2C Correspondingly, the safety lever 10 swings in the clockwise direction, as shown in FIG. Figure 3A and Figure 3B shown.

[0064] Once the safety lever 10 is in its position corresponding to Figure 3B In the non-safety position shown in the figure, the safety operating pin 6b is moved again to abut against the locking element 9, 9' or the fork arm 9'. For this purpose, the locking element 9, 9' is designed as a fork as a whole, wherein the two fork arms 9, 9' can be alternately swung in while overlapping with the drive element 6. That is, in accordance with Figure 2C The spacing position of the blocking element 9 or one of the blocking arms 9 in the functional position corresponds to the spacing position of the blocking element 9 or one of the blocking arms 9 in the functional position according to Figure 3A The locking position of the other locking arm 9' in the functional position of the locking arm 9' and vice versa. The locking arm or the locking element 9, 9' is again held in the locking position by the interaction of the shaped portion 6c with the counter-shaped portion on the locking element 9, 9' or its locking arm 9'. In other words, two shaped portions 6c are finally realized on both sides of the safety actuating pin 6b, which interact alternately with corresponding counter-shaped portions on the two fork-shaped locking arms of the locking element 9, 9'.

[0065] In short, once the safety operating pin 6b has caused the safety lever 10 to move from the Figure 3A from the functional position of the Figure 3B In the non-safety position, the safety actuating pin 6b moves against the blocking arm or blocking element 9, 9'.

[0066] from Figure 3C Starting from the functional position in the middle, the drive element 6 can be reset to the center zero position by means of the relevant center zero position spring 11. Figure 2A The reset involves a clockwise rotation about the axis 7. The shaped part 6c thus releases the blocking elements 9, 9'. The safety lever 10 remains in its non-safety position. The blocking elements 9, 9' or their blocking arms or fork arms 9' are released, so that the blocking elements 9, 9' as a whole can again assume the position according to Figure 2A The same is true for the safety lever 10, which is also in or has been in the non-safety position.

[0067] As shown in the figure, the drive element 6 is moved in the direction of movement, firstly the safety position of the locking device 1, 2 is achieved, and in another movement the open position of the locking device is achieved. According to this embodiment, the safety position corresponds to the "locked" position or the "child safety" position. The drive element 6 moves in the reverse direction of movement from the inactive position to achieve the non-safety position, which according to this embodiment corresponds to the achievement of the "unlocked" position and then the achievement of the "child safety released" position.

Claims

1. A motor vehicle lock, comprising a locking device (1, 2), an electric drive device (4, 5, 6) for the locking device (1, 2) and a locking element (9, 9') for the electric drive device (4, 5, 6), the locking device mainly comprising a rotary lock fork (1) and a locking claw (2), the electric drive device (4, 5, 6) comprising a motor (4) and a drive element (6) which can be loaded in at least one direction of movement and in a reverse direction of movement, by means of the drive element (6) at least one safety position and an open position of the locking device (1, 2) can be achieved, the drive element (6) comprising a center zero position spring (11) for placing the drive element in an inactive position after being operated, The drive element (6) is moved in a movement direction to first realize a safety position of the locking device (1, 2), wherein the drive element (6) is moved relative to the locking element (9, 9') to realize the safety position, thereby interrupting the power supply to the motor (4) and the force of the center zero spring (11) returns the drive element (6) to the inactive position, and then the drive element (6) realizes the open position of the locking device in another movement.

2. The motor vehicle lock according to claim 1, characterized in that: The drive element (6) is moved in the reverse direction of movement to achieve the unsafe position.

3. The motor vehicle lock according to claim 1 or 2, characterized in that: The blocking element (9, 9') is acted upon by means of a further spring (12) so as to be spaced apart from the drive element (6).

4. The motor vehicle lock according to claim 1 or 2, characterized in that: The drive element (6) is moved relative to the blocking element (9, 9') in order to achieve the unsecured position.

5. The motor vehicle lock according to claim 1 or 2, characterized in that: The drive element (6) has at least one shaped portion (6c), which holds the blocking element (9, 9') against the drive element (6) to achieve a safety position and / or a non-safety position.

6. The motor vehicle lock according to claim 1 or 2, characterized in that: The drive element (6) is provided with a safety actuation pin (6b) for a safety lever (10) on one side, which is used to realize a safety position and / or a non-safety position.

7. The motor vehicle lock according to claim 6, characterized in that: The drive element (6) is provided with an opening actuating pin (6a) for the release lever (3) on its opposite side, which serves to achieve the open position.

8. The motor vehicle lock according to claim 7, characterized in that: The blocking element (9), the release lever (3) and the safety lever (10) are coaxially supported.

9. The motor vehicle lock according to claim 1, characterized in that: Motor vehicle locks are motor vehicle door locks.

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