Motor vehicle lock with improved door opener

Abstract

The invention relates to a motor vehicle lock, comprising a locking mechanism having a bolt and at least one pawl by means of which the bolt can be locked in at least one locking position, an entry buffer (21) arranged in a housing (31) of the motor vehicle lock, and an opening device arranged at least partially in the motor vehicle lock, the locking mechanism can be engaged with the lock catch (28), the entry buffer (21) can be engaged with the lock catch (28), and the opening device has an opening part (20) which can be engaged with the lock catch (28) and which interacts with the entry buffer (21).

Description

Technical Field

[0001] The present invention relates to a motor vehicle lock, which comprises a locking mechanism, an entry buffer arranged in a housing of the motor vehicle lock, and an opening device at least partially arranged in the motor vehicle lock. The locking mechanism has a lock tongue and at least one lock claw, by means of which the lock tongue can be locked in at least one locking position, the locking mechanism can engage with a lock buckle, the entry buffer can engage with the lock buckle, and the opening device has an opening piece, which can engage with the lock buckle. Background Art

[0002] Motor vehicle locks (also called motor vehicle locking devices or simply locking devices) are used in situations where vehicle components that are pivotably or displaceably connected to the motor vehicle usually have to be held in a locked position. The vehicle components have to be held in place during driving and, for example, protect the occupants in the motor vehicle in the event of an accident.

[0003] In order to increase the comfort in the motor vehicle and / or for the sake of the design on the motor vehicle, electrically assisted locking devices are increasingly used. Thus, for example, electrically operable locks can be used when an outer door handle is to be omitted. In this case, the operator can open the motor vehicle by sending a switching signal to the locking device. In this case, it may be advantageous if the locking device or the movable component has an opening element. The opening of the side door can make it easier to get on board, for example, in the case of vehicles without outer door handles. Such an opening device is also referred to as a door opening element or door opening device.

[0004] DE 10 2011 015 669 A1 discloses an opening device for a motor vehicle door or hatch, with which the door, hatch or hood can be transferred from a locked position to an open position. If the opening device is associated with a motor vehicle side door, for example, the door can be opened by an operator with the aid of an electrical signal. To this end, the locking mechanism of the door lock must first be unlocked electrically so that the door can be opened. The door can then be transferred to the open position with the aid of the opening device. The open position is defined in this way, that is, the operator of the motor vehicle can grasp the door so that the operator can fully open the door. In this case, an electric drive mechanism is used as the opening device, which acts on the motor vehicle door mechanically in the form of a lever swing via a drive pawl and an inner and outer lever.

[0005] DE 10 2017 124 282 A1 discloses an opening device for a motor vehicle door element, which has an electric drive mechanism and an adjusting device, wherein the adjusting device can be adjusted by means of the drive mechanism and a transmission mechanism arranged between the adjusting device and the drive mechanism. The door can be moved by means of the opening device, wherein a push element is arranged on the adjusting element, which cooperates with a switching device so that the door can be grasped. The adjusting device essentially comprises a driven rack with an integrated push element, a switching device and an electrical conductor. In this case, the movement of the driven rack can be controlled by means of the switching device between the push element and the vehicle body.

[0006] The motor vehicle locking device according to the present invention has a locking mechanism including a locking tongue and a locking pawl. Here, the locking tongue is received in the locking device rotatably or swingably and can be held, i.e. locked, in at least one locking position by means of the locking pawl. In most cases, the locking device is arranged in a vehicle component that is swingably arranged on the motor vehicle, and is common, for example, in the case of a side door. Of course, the locking device can also be arranged on the vehicle body, as is usually provided in the case of a tailgate. The locking device or the motor vehicle lock cooperates with a lock catch, which is, for example, fixed to the vehicle body and can be designed as a bow-shaped lock catch or a locking pin. Due to the relative movement between the locking device and the lock catch when locking the component that is movably arranged on the motor vehicle, the locking tongue is swung and held or fixed in the pre-locking position and / or the main locking position by means of the locking pawl.

[0007] The entry damper (as the name implies) serves to dampen the locked position of the transportable component and there serves to dampen the movements of the interaction between the latch and the vehicle lock. Furthermore, during the travel of the vehicle, movements occur in the vehicle body and relative movements occur between the vehicle components that are pivotably arranged on the vehicle body, which in turn lead to relative movements between the locking tongue and the latch. The relative movement between the latch and the locking tongue can lead to noise, which is also called creaking. In order to influence and in particular reduce the noise between the latch and the locking device, damping elements are used, which are also called stop dampers or entry dampers or entry dampers. Different possibilities for influencing the noise between the locking device and the latch are known from the prior art.

[0008] DE 10 2010 005 843 A1 discloses an entry damper made of a rubber-elastic material, which cooperates with the latch in the main locking position. The entry damper serves, on the one hand, to reduce the noise when the latch stops in the locking device and, at the same time, to guide the latch in the locking system during driving. According to this document, the entry damper also has an inlay made of a non-elastic material, in this case polyoxymethylene (POM). The inlay provided on the rubber-elastic damper can abut against the latch without overloading the damper.

[0009] DE 10 2011 107 877 A1 discloses a lock for a motor vehicle door, in which a spring plate is arranged in the lock substantially parallel to the locking tongue, wherein the spring plate surrounds the locking catch in the main locking position of the lock. The spring plate prevents creaking in the area where the lock is connected to the vehicle body. In addition to the damping means known from the prior art, a possible movement of the corresponding door or hatch perpendicular to the direction of travel of the vehicle is counteracted by the spring plate. In a coordinate system related to the motor vehicle, the direction perpendicular to the direction of travel is also referred to as the Z direction.

[0010] DE 10 2020 109 770 A1 discloses a combination structure comprising an entry buffer and an opening device. As a component of the opening device, the opening member assumes the function of an entry buffer. Here, the entry buffer can be formed integrally with the opening member and can be injection-molded on the opening member in the form of a rubber-elastic plastic, for example. It is also conceivable that the rubber-elastic buffer is connected to the opening member by means of a form-fitting structure. The entry buffer and the opening member together form a vibration-damping device, and the lock buckle can be inserted into the motor vehicle locking device or the motor vehicle lock in a noise-reducing manner using the vibration-damping device.

[0011] The solutions known from the prior art have been proven in principle, but have reached their limits in that, due to structural space restrictions, the space available for implementing the functions, in particular the damping function combined with the opening function, is limited, and requirements are imposed on holding in the open position. The present invention is intended to remedy this in general and, in particular, to disclose improvements. Summary of the invention

[0012] The object of the present invention is to provide a motor vehicle lock which implements the opening function in the motor vehicle with the smallest possible structural space and at the same time enables a low-noise interaction between the locking device and the lock catch, and furthermore the movable component can be held in the open position. A further object of the present invention is to provide a solution which is simple in design and economical in cost.

[0013] This object is achieved according to the invention by the features of independent claim 1. Advantageous embodiments of the invention are given in the dependent claims. It should be pointed out that the embodiments described below are not restrictive, but rather any possible variations of the features described in the description and the dependent claims are possible.

[0014] According to claim 1, the object of the present invention is achieved in the following way: a motor vehicle lock is provided, which comprises a locking mechanism, an entry damper, and an opening device arranged at least partially in the motor vehicle lock, the locking mechanism having a locking tongue and at least one locking pawl, by means of which the locking tongue can be locked in at least one locking position, the locking mechanism being engageable with a lock catch, the entry damper being engageable with the lock catch, and the opening device having an opening member, which can be engageable with the lock catch, and which cooperates with the entry damper. The following feasibility is achieved by the structure of the motor vehicle lock according to the invention: an opening function combined with a damping device is provided, wherein the opening and damping of the movement of a movable component on the motor vehicle can be achieved with the smallest possible structural space. According to the invention, the entry damper has multiple functions. Firstly, the entry damper and the lock catch cooperate to obtain the function of damping the closing movement; secondly, the entry damper serves to reduce the relative movement between the lock and the lock catch in the closed position of the motor vehicle lock in order to avoid so-called squeaking; and thirdly, the entry damper serves to open a movable component on the motor vehicle, preferably a side door. According to the invention, the multiple functions of the entry damper can be realized in that the opening element acts directly on the entry damper or cooperates with the entry damper.

[0015] If a motor vehicle lock is discussed according to the invention, terms such as "motor vehicle locking device or locking system" are also general names for motor vehicle locks, which are used as synonyms in motor vehicle technology. All these locking devices have in common that a locking mechanism is used, in which a locking tongue arranged in a swingable or rotatable manner in the locking device cooperates with at least one locking pawl. Here, the locking tongue and the locking pawl are supported on a metal pin in a metal locking plate, so that the highest loads occurring, for example, in the event of an accident can also be absorbed. The reinforcement plate is partially installed between the shafts to stabilize the locking mechanism components. The locking pawl enables the locking mechanism to occupy a pre-locking position and / or a main locking position. Here, a locking pawl that locks the locking mechanism in two locking positions can be used, but it is also conceivable to use two locking pawls for the locking position. It is also conceivable and known to use two locking pawls, which engage with each other and facilitate the unlocking of the locking mechanism, which is also called a double-pawl locking mechanism and has a locking torque at least in the main locking position.

[0016] The latch is usually connected to the vehicle body and interacts with the locking mechanism by the movement of the locking device in the movable vehicle part on the vehicle. The locking mechanism can be transferred into one or more locking positions by the relative movement between the locking device and the latch. The relative movement between the locking device and the latch causes noise, which can be reduced by the insertion of a damping element.

[0017] The opening device can preferably be electrically driven, wherein the electric drive device for the opening device can be directly a part of the motor vehicle lock and / or adapted to the motor vehicle lock and / or arranged in the motor vehicle as a separate drive device spaced apart from the motor vehicle lock. It can also be imagined here that, for example, the opening member can be operated directly or indirectly by means of a Bowden cable. Here, the advantage of electric operation is that power is provided in a variety of ways in the motor vehicle. Through the rod mechanism that can be driven by the drive device, on the one hand, enough force can be provided for opening, and on the other hand, the stroke or opening movement of the movable member can be adjusted. Here, the stroke of the movable vehicle component from its locked position to the open position is called the opening stroke. The size range of the adjustment stroke considered within the scope of the present invention is less than 20mm, preferably less than 10mm, and more preferably within the range of 5mm.

[0018] The entry damper or inlet damper is at least partially arranged in the housing of the motor vehicle lock. "Arranged" here means that the entry damper is at least partially fixed in position on the housing of the motor vehicle lock. The housing of the motor vehicle lock forming the inlet is usually made of plastic, preferably as an injection molded part. The housing is at least partially surrounded by a lock plate or a lock box, wherein the inlet is also at least partially surrounded by the lock plate or the lock box. The entry damper serves to dampen or reduce the relative movement between the motor vehicle lock and the lock catch when the movable component is locked, so that the movable component, such as a hatch, a sliding door or a side door, can be locked as quietly as possible.

[0019] According to the invention, the entry buffer is connected to the housing so that the entry buffer is fixedly positioned in the motor vehicle lock, in particular in the entry of the motor vehicle lock. Usually, the motor vehicle lock moves, for example with the side door, and engages with a locking catch which is fixedly positioned, for example, on the B-pillar or C-pillar of the vehicle body. When locking the movable component, the locking catch in this case moves the locking tongue of the locking mechanism, and at least one locking pawl locks the locking tongue in the pre-locking position or the main locking position. During locking, the entry buffer damps the movement of the movable component and also serves to hold the movable component in a low-noise manner during operation of the motor vehicle.

[0020] In an advantageous design variant of the present invention, the entry buffer can be moved at least partially by means of an opening member. The main advantage of the present invention is that the opening member can move the entry buffer itself, which is at least partially accommodated in the housing. As a result, there is a feasible solution, namely, using existing components, especially the entrance buffer, as a device for opening the movable component. In other words, the entry buffer present in the motor vehicle lock is used to introduce the adjustment movement into the movable component. To this end, the opening member acts on the entry buffer and can at least partially move the entry buffer. Therefore, in combination with the opening of the locking mechanism, the entry buffer can be used to start the opening movement of the movable component and transfer the movable component from the locked position to the open position. The opening member and the entry buffer are used in combination as an opening device for the movable component. Because the entry buffer is at least partially, preferably completely, arranged between the opening member and the lock buckle, it can also be opened in a vibration-damping manner.

[0021] If the entry buffer is at least partially accommodated in the housing of the motor vehicle lock, an advantageous design variant can be achieved. By accommodating the entry buffer, the entry buffer can be precisely arranged in the motor vehicle lock. In other words, the known arrangement of the entry buffer can be used, which results in structural advantages. Usually, the entry buffer is arranged in the housing of the motor vehicle lock so that mutual cooperation between the entry buffer and the lock catch can be achieved, as described at the beginning, preferably designed as a stop and used for noise minimization. According to the present invention, such a structural arrangement can be used, in which only a local gap-free entry buffer needs to be achieved. In other words, the known structural arrangement of the entry buffer can be used so that the entry buffer is fixed in the housing, and only the local mobility of the entry buffer needs to be achieved. In this case, the opening member can act on the movable part of the entry buffer and start or cause a relative movement between the motor vehicle lock and the lock catch.

[0022] In one embodiment of the present invention, it may be advantageous that the entry buffer is at least partially flexibly connected to the opener. The connection of the opener to the entry buffer can lead to the stability of the opener itself. The entry buffer is at least partially connected to the housing of the motor vehicle lock in a fixed position and is therefore partially fixedly arranged in the motor vehicle lock. If the opener is connected to the entry buffer, so that a releasable or non-releasable connection is achieved between the entry buffer and the opener, a reliable mutual cooperation can be achieved between the opener and the entry buffer. According to this embodiment, the entry buffer is connected to the opener in a releasable manner or in a non-releasable manner. In addition, due to the high rigidity of the plastic of the entry buffer, a guide portion for the opener can be provided, in other words, the entry buffer is used as a guide device for the opener.

[0023] If there is a releasable connection between the entry buffer and the opener, a form-locked or force-locked connection between the opener and the entry buffer can be considered. Here, for example, a notch can be provided in the opener, into which the entry buffer engages, so that a form-locked connection can be achieved between the entry buffer and the opener. Of course, it is also conceivable that an opening is provided in the entry buffer, into which the opener engages. In short, a reliable mutual cooperation between the entry buffer and the opener can be achieved by the releasable connection between the opener and the entry buffer, wherein the installation is additionally facilitated because the opener and the entry buffer can be installed separately.

[0024] In the case of a force-locking connection between the opening element and the entry buffer, on the one hand, for example, the elasticity of the entry buffer can be set in such a way that, in the mutual cooperation, a force-locking connection between the opening element and the entry buffer can be achieved due to the tolerance and elasticity of the entry buffer. Here, for example, the opening in the entry buffer can be toleranced in such a way that, after the opening element is inserted into the opening of the entry buffer, a force-locking connection between the opening element and the entry buffer is set. Means for assisting the form-locking connection, for example a spring element, can also be provided, wherein, for example, the spring element acts on the entry buffer.

[0025] In the case of a non-detachable connection between the entry damper and the opening member, a material bonding process, such as bonding, is used, for example. However, it is also conceivable that a non-detachable connection between the entry damper and the opening member can be established by means of vulcanization. By means of a material bonded or non-detachable connection between the opening member and the entry damper, a reliable mutual cooperation between the opening member and the entry damper can be achieved. In addition, since the number of components to be installed is reduced due to the integration of the opening member and the entry damper, advantages in terms of installation technology are also obtained.

[0026] A further design variant of the invention can be achieved if the opening element can engage with the entry damper in a substantially central manner next to the entry damper. The "opening element engaging in a central manner next to the entry damper" provides the possibility of reducing the required installation space for opening to a minimum. The entry damper, which is usually arranged in the motor vehicle lock, determines the width of the entry. With respect to the width of the entry damper, no additional installation space for the opening element is required, since the entry damper operates in the region of the entry damper.

[0027] The main advantage of the invention is that the opening element can be integrated into the motor vehicle lock with the existing width of the lock in relation to the width orientation of the entry buffer, without requiring any additional structural space in relation to the width direction of the entry buffer. The structural space is a decisive advantage when developing motor vehicle locks, since the structural space inside the motor vehicle, for example in the tailgate or side doors, is always limited. This is due to the fact that other functions are integrated into the motor vehicle interior, such as airbags, closing drives, door module supports, etc. With regard to the design, by arranging the opening element in an area approximately centered next to the thickness of the entry buffer, the width of the entry buffer can determine the width of the access opening on the motor vehicle lock, without requiring any additional structural space for the opening element.

[0028] If the relative movement between the motor vehicle lock and the lock catch can be generated or realized by means of the movement of the entry buffer, another design variant of the present invention is obtained. The opening member can at least partially move the entry buffer. Here, the opening member moves the part of the entry buffer that is movably arranged in the motor vehicle lock housing in the following way, that is, the unlocked locking mechanism releases the lock catch, and the opening member can move the movable component from the locked position to the open position through the adjustment stroke. In other words, the flexibility of the entry buffer is used to introduce the adjustment movement into the movable component. Here, the fixed entry buffer can realize the adjustment movement, that is, the movable part of the entry buffer can follow the movement of the opening member or move under the action of the opening member.

[0029] A further design variant of the invention can be achieved if the entry buffer at least partially surrounds the locking catch. A further major advantage of the invention is that, by the movement of the entry buffer and the at least partial surrounding of the locking catch, a stable position can also be achieved in the open position of the movable component. The entry buffer thus acquires a fourth task, namely that it can hold, i.e. position, the movable component in the open position. The entry buffer thus becomes a retaining means in the open position and can prevent, for example, a side door in the open position from moving on its own.

[0030] Thus, the movable component can be held by means of the entry damper. Here, the entry damper can achieve a positive locking engagement between the entry damper and the lock catch, for example, by means of ribs or rib structures. There is also the possibility that the entry damper is moved by the opening element in such a way that the positive locking occurs only with the opening. In other words, the movable part of the entry damper is moved in such a way that, in the open position, a positive locking engagement is established between the lock catch and the entry damper.

[0031] According to the present invention, a component movably arranged on a motor vehicle can be kept in at least one open position by means of an entry buffer. The open position is achieved when the locking mechanism releases a component movably arranged on the motor vehicle, such as a side door. Preferably, the locking mechanism is equipped with an electric opening drive. After the locking mechanism is electrically unlocked, that is, after the locking mechanism is electrically opened, the pawl is disengaged from the lock tongue and the lock tongue can move substantially freely. As the lock tongue releases the movable component, an opener is used. The opener moves the movable component to the open position, wherein the outstanding feature of the open position is that the operator can grab the movable component. Here, the operator can, for example, reach into the door gap and open the door element to get on the vehicle. Now, in order to keep the movable component in the open position in the open position, the present invention proposes that the entry buffer moved by the opener acts on the door element firmly or fixedly. The locking mechanism and the entry buffer act together with the lock catch. In the open position, the opener has moved the entry buffer in the following manner, that is, the movable component has moved to the open position, but the entry buffer is still engaged with the lock catch. If, according to the invention, the entry damper at least partially surrounds the lock catch by the movement of the opening element and the deformation of the entry damper, a secure engagement can be established between the entry damper and the lock catch. The entry damper is usually made of a rubber-elastic material. If the entry damper now rests on the lock catch in a form-fitting manner, on the one hand the movable component can be reliably held, and on the other hand the operator can easily disengage the engagement between the entry damper and the lock catch. Thus, for example, a side door in the open position can be disengaged from the secure engagement with the entry damper by pulling the door element, for example.

[0032] Advantageously, in a design variant of the present invention, the motor vehicle lock is designed as an electric lock, so that the locking mechanism can be opened electrically. By using an electric lock, the following feasibility exists, for example, to abandon the inner and / or outer operating parts as mechanical connections to the motor vehicle lock. Here, in order to open the motor vehicle lock or to unlock the locking mechanism, it is only necessary to send an electric pulse or an electric signal to the electric lock, and the motor vehicle lock can be unlocked. This provides the following feasibility for the designer of the motor vehicle, using an electronic operating device or a remote control device, for example, to abandon the inner and / or outer door handles for unlocking the locking mechanism, because the mechanical redundancy for opening the locking mechanism can be omitted.

[0033] In another advantageous design variant of the present invention, the entry buffer is used as a damping element for damping at least one terminal position of the opener. In the locked position of the movable member, the lock catch rests on the entry buffer and / or the push-open member. In any case, the opener is in its terminal position, which the opener occupies when the door element is locked. With the opening command issued to the motor vehicle lock, the locking mechanism is released mechanically or electrically and the opener moves the movable member to the open position. In this case, the opener occupies the second terminal position or the open position. The opener travels back and forth between two positions or parts so that on the one hand the movable member is moved and on the other hand the locking mechanism can be relocked. The opener acts together with the entry buffer and can also be connected to the entry buffer in a form-fitting manner and / or materially combined, for example. In order to limit the movement of the opener and / or to occupy the terminal position with as little noise as possible, the entry buffer can be used as the terminal position buffer of the opener at the same time. If the opening member moves back to the end position, i.e. the initial position, after opening, for example, the entry buffer connected to the opening member can, for example, abut against a larger wall or housing area of ​​the motor vehicle lock, so that end position damping can be achieved by means of the entry buffer member. The same applies to the opening position, i.e. the second end position, of the opening member.

[0034] The motor vehicle lock structure according to the invention makes it possible to configure the mutual cooperation between the opening element and the entry buffer and to arrange the opening element in the motor vehicle lock in such a way that a plurality of advantageous functions can be achieved by the entry buffer and the mutual cooperation between the opening element, the entry buffer and the lock catch. In this case, the entry buffer has multiple functions, including vibration damping, noise reduction, opening and holding the movable component in the open position. All these functions can be achieved with minimal design effort and installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The invention is described in detail below with reference to the accompanying drawings according to a preferred embodiment. However, the following principle applies, namely, the embodiment does not limit the invention, but only shows an advantageous design form. The features shown can be implemented alone or in combination with other features of the description and the claims. In the figure:

[0036] Figure 1 A side view of a motor vehicle lock in a main locking position with a partially shown opening device and an engaged locking catch according to the prior art,

[0037] Figure 2 The opening element and the entry buffer element are shown separated from the motor vehicle lock and opening device,

[0038] Figure 3 from Figure 2The direction of arrow III in FIG. 1 shows a view of the opening member and the entry buffer member, wherein the first terminal position of the opening member is presented,

[0039] Figure 4 A view of the opener is again shown from the direction of arrow III, in which the second end position of the opener is represented. DETAILED DESCRIPTION

[0040] Figure 1 A side view of a motor vehicle locking device 1 and an opening device 2 is shown. The locking device 1 cooperates with a lock catch 3. In this respect, the main locking position of the locking device 1 is shown, that is, the movable component is in the locked position. The lock catch 3 is held in the main locking position of the locking mechanism by means of a locking tongue. The lock catch 3 has a lock catch bow 5, wherein the locking tongue 4 surrounds the area of ​​the lock catch bow 5 and thus fixes the movable component.

[0041] The motor vehicle locking device 1 has a U-shaped lock plate 6 in this embodiment, in which at least the locking mechanism component 4 is received in a rotatable manner. In addition, a reinforcement plate 7 can be seen, which is connected to the reinforcement plate 7 (lock plate) by means of a pin 8 and a receiving portion 9. A part of the rod mechanism 10 of the opening device 2 is swingably received on the reinforcement plate 7. In this embodiment, the rod mechanism 10 includes an operating rod 11 and an opening member 12. The operating rod 11 has a suspension portion 13, in which the end of a Bowden cable, for example, which is not shown, can be suspended. With the help of the Bowden cable, a force F can be introduced into the rod mechanism 10, so that the operating rod 11 moves around the axis 14 in the direction of the arrow P, so that the force can be introduced into the opening member 12. The lock plate 6, the reinforcement plate 7, the operating rod 11 and the opening member 12 are preferably made of metal materials, so that a large opening force can also be introduced into the lock buckle 3. The opening member 12 and the operating rod 11 are connected to each other in a swingable manner around the axis 15.

[0042] exist Figure 1 A portion of a lock housing 16 is also partially shown in the drawing, wherein an access area 17 for the lock buckle 3 is formed by the lock housing 16 .

[0043] In this design variant, the opening member 12 additionally assumes the function of an entry buffer. In this embodiment, the entry buffer 18 is formed integrally with the opening member 12 and can be injection-molded on the opening member 12 as a rubber-elastic plastic. Of course, it is also conceivable that the rubber-elastic entry buffer is connected to the opening member 12 by means of a positive locking structure 19. The positive locking structure 19 is shown in dashed lines as an example. Figure 1 middle.

[0044] The entry damping element together with the opening element 12 forms a damping element 12, 18, with which the lock buckle 3 can be inserted into the motor vehicle locking device 1 in a noise-reduced manner. Figure 1It can be clearly seen in the figure that the end of the entry buffer 18 or the opening member 12 protrudes beyond the end center line M of the lock bow 5. This ensures that the load on the lock 3 in the Z direction can be absorbed by the receiving portion 12. Therefore, the lock bow 5 can be locked in the locking device 1 by means of the opening member 12 and the entry buffer 13. The opening member 12 can, for example, pass through the lock housing 16 and / or the reinforcement plate 7 in the locking device 1.

[0045] Figure 2 The opening member 20 and the entry buffer 21 are shown as separate components separated from the motor vehicle lock and the opening device. The opening member 20 can be moved back and forth in the direction of the arrow P1, for example, by means of its support 22 with an opening device according to the prior art. In this case, the movement of at least a part of the entry buffer 21 can be achieved by means of the opening member 20. The entry buffer 21 can be divided into a first part 23 that is fixed in position and a second part 24 that is movable.

[0046] The first part can be received in a housing of the motor vehicle lock in a form-fitting manner, for example, via ribs 25. By engaging the ribs 25 in a form-fitting manner in corresponding recesses of the housing, the entry damper 21 can be held in a fixed position in the motor vehicle lock.

[0047] Part II 24 As in Figure 2 As shown in FIG. 1 , the second part 24 is engaged in the opening member 20 in a form-fitting manner, thereby ensuring a reliable positioning of the second part 24 of the entry buffer 21. The opening member 20 is engaged on the entry buffer 21 centrally along the center line M of the entry buffer 21. Here, in addition to the form-fitting between the entry buffer 21 and the opening member 20, the second part 24 can also be connected to the opening member 20 in a non-detachable manner. For example, it is conceivable that the second part 24 is connected to the opening member 20 using an adhesive process or by vulcanization.

[0048] If the opening device is used to move in the direction of the arrow P1, the second part 24 of the entry buffer 21 can move along the adjustment stroke S. By means of the movement of the second part 24 of the entry buffer 21, the lock released by the locking mechanism is subjected to the force F1, so that, for example, a motor vehicle door connected to the opening member 20 can be opened and pass through the stroke S. Therefore, the opening member 20 and the entry buffer 21 cooperate with each other to produce a relative movement between the movable component and the lock. In order to move the second part 24 of the entry buffer 21, the entry buffer 21 is deformed in the bending area 26. Here, for example, if the notch 27 extends into the first part 23 of the entry buffer, the opening member 22, for example, drives into the notch 27 of the entry buffer 21 and can also move into the first part 23.

[0049] The structure according to the invention, which cooperates with each other between the opening member 20 and the entry buffer 21, provides a feasible solution for opening a component movably fixed to a motor vehicle using a device of minimal design. By arranging the opening member centrally relative to the entry buffer, a minimal construction of the opening member can be achieved, that is, the opening is achieved using the smallest possible structural space.

[0050] Although not shown, it is also possible according to the invention that the entry damping element 21 is moved by its movable second part 24 in such a way that, in addition to opening, the latch can also be held in the unlocked, i.e. open position of the movable element. Thus, the entry damping element 21 acquires multiple functions, such as damping, positioning, opening and / or holding.

[0051] Figure 3 The view of the opening element in the end position or initial position is shown, in which the opening element 20 is located if the movable component is in the locked position. The initial position A of the latch 28 thus represents the latch position and the arrangement of the opening element 20 in the locked position of the movable component. The latch 28 rests on the opening element 20 and the entry buffer 21. For this purpose, the second part 24 of the entry buffer 21 has an extension or retaining device 29 on the end side, which is Figure 3 The center is located above the lock buckle 28.

[0052] exist Figure 3 The first end position or initial position A shown in the drawing shows the opening member 20 in the retracted position. The second part 24 of the entry buffer 21 is connected to the opening member 20, for example, in a non-detachable manner. When the opening member 20 is retracted, the stop area 30 can come into contact with the housing 31 of the motor vehicle lock and thus provide a stop for the opening member 20. Therefore, the entry buffer 21 also has the function of damping the movement of the opening member 20. The housing 31 is only briefly sketched, but it can also be seen that the ribs 25 of the entry buffer 21 and the housing 31 cooperate with each other, so that a stable connection between the entry buffer 21 and the housing 31 can be established.

[0053] exist Figure 4 , a view of the opening member 20 is also presented from the direction of arrow III. However, the position of the opening member 20 in the open position of the movable member is shown here, that is, the opening member 20 has moved the lock catch 28 from the first end position, i.e. the initial position A, to the second end position, i.e. the open position B. The opening movement is a stroke S in Figure 4. It can be clearly seen that due to the movement of the opening member in the direction of arrow P2, the extension portion at least partially extends around the lock catch 28, thereby establishing a retaining engagement through the mutual cooperation between the opening member 20, the entry buffer 21 and the lock catch 28. Therefore, the following feasibility scheme is achieved, that is, by means of the opening member 20 that cooperates with the entry buffer, the movable member is maintained or fixed in its open position or open position. Because the entry buffer 21 is made of elastic material, the deformation of the entry buffer 21 can be achieved in a simple manner through the opening member 20, and the movable member can be reliably retained by the high friction resistance between the lock catch 28 and the protrusion 29 of the entry buffer 21 and / or the extension portion 29.

[0054] List of reference numerals:

[0055] 1 Motor vehicle locking device

[0056] 2 Open the device

[0057] 3 Lock

[0058] 4. Lock tongue

[0059] 5 Locking bow

[0060] 6 Lock plate

[0061] 7 Reinforcement plate

[0062] 8 Pins

[0063] 9 Reception Department

[0064] 10-bar mechanism

[0065] 11 Joystick

[0066] 12 Opening pieces

[0067] 13 Suspension

[0068] 14, 15 axis

[0069] 16 Lock housing

[0070] 17 Entering the area

[0071] 18 Enter the buffer and vibration reduction components

[0072] 19. Form-locking structure

[0073] 20 Opening pieces

[0074] 21 Enter the buffer

[0075] 22 Supporting part

[0076] 23 Part 1

[0077] 24 Part 2

[0078] 25 Ribs

[0079] 26 Bending Area

[0080] 27 Notch

[0081] 28 Lock

[0082] 29 Extension

[0083] 30 Stopper

[0084] 31 Shell

[0085] F, F1 force

[0086] P, P1, P2 arrows

[0087] M Midline

[0088] S Adjustment stroke

[0089] AFirst terminal position, initial position

[0090] B Second terminal position, open position

Claims

1. A motor vehicle lock, comprising a locking mechanism, an entry buffer (21) arranged in a housing (31) of the motor vehicle lock, and an opening device at least partially arranged in the motor vehicle lock, wherein the locking mechanism has a lock tongue and at least one lock claw, by means of which the lock tongue can be locked in at least one locking position, the locking mechanism can engage with a lock catch (28), the entry buffer (21) can engage with the lock catch (28), the opening device has an opening member (20), the opening member (20) can engage with the lock catch (28), and the characteristic is that: The opening member (20) cooperates with the entry buffer member (21).

2. The motor vehicle lock according to claim 1, characterized in that: The entry buffer (21) can be moved at least partially by means of the opening member (20).

3. The motor vehicle lock according to claim 1 or 2, characterized in that: The entry damper (21) is at least partially received in a housing (31) of a motor vehicle lock.

4. The motor vehicle lock according to any one of claims 1 to 3, characterized in that: The entry buffer (21) is at least partially connected to the opening member (20).

5. The motor vehicle lock according to claim 4, characterized in that: The entry buffer (21) is connected to the opening member (20) in a releasable manner.

6. The motor vehicle lock according to claim 4, characterized in that: The entry buffer (21) is connected to the opening member (20) in a non-detachable manner.

7. The motor vehicle lock according to any one of claims 1 to 6, characterized in that: The opening member (20) can engage with the entry buffer member (21) in a substantially centered manner beside the entry buffer member (21).

8. The motor vehicle lock according to any one of claims 1 to 7, characterized in that: By means of the movement of the entry damper (21), a relative movement (S) between the motor vehicle lock and the lock catch (28) can be generated.

9. The motor vehicle lock according to any one of claims 1 to 8, characterized in that: The entry buffer (21) at least partially surrounds the lock catch (28).

10. The motor vehicle lock according to any one of claims 1 to 9, characterized in that: The entry buffer (21) can be engaged with the lock catch (28) in a form-fitting manner.

11. The motor vehicle lock according to any one of claims 1 to 10, characterized in that: The opening element (20) can be held in at least one open position (B) by means of an entry damping element (21).

12. The motor vehicle lock according to any one of claims 1 to 11, characterized in that The entry buffer (21) serves as a damping element for damping at least one end position (A, B) of the opening element (20).

13. The motor vehicle lock according to any one of claims 1 to 10, characterized in that: The motor vehicle lock is designed as an electrically opened motor vehicle lock.

Images