Motor vehicle locking system, in particular motor vehicle door locking system

Abstract

The invention relates to a method for locking a component movably arranged on a motor vehicle and to a motor vehicle door locking system having a motor vehicle lock with a locking mechanism (4) comprising a bolt (6) and at least one pawl, the bolt (6) being lockable in at least one locking position by means of the pawl (15); a reinforcing plate (5), by means of which at least the shaft (16) of the bolt (6) can be connected to the shaft (17) of the at least one pawl (15); a lock catch (2, 18), the lock catch (2, 18) being grasped by the lock tongue (6) at least in a locking position, and the lock catch (2, 18) and the reinforcing plate (5) being able to be brought into an engaged position.

Description

Technical Field

[0001] The present invention relates to a motor vehicle locking system, in particular a motor vehicle door locking system, having a motor vehicle lock, wherein the motor vehicle lock has: a locking mechanism including a lock tongue and at least one lock pawl, wherein the lock tongue can be locked in at least one locking position by means of the lock pawl; a lock box for supporting the locking mechanism, wherein the locking mechanism component is received in a rotatably supported manner by means of an axis retained in the lock box; a reinforcement plate, wherein at least the axis of the lock tongue can be connected to the axis of at least one lock pawl by means of the reinforcement plate; and a lock catch, wherein the lock catch is grasped by the lock tongue at least in the locking position. Background Art

[0002] Locks for motor vehicles are used as locking systems at locations where components that are movably arranged on the motor vehicle, such as doors, hatches or hoods, must remain fixed in position during operation of the motor vehicle. Locking systems are particularly important here because, as safety-related components, they must ensure that components that are movably arranged on the motor vehicle are retained even in extreme situations. This is understandable because, for example, an unintentional opening of the bonnet could put the vehicle driver and / or passengers in a fatal situation. Forces acting on the motor vehicle during travel, such as shocks, vibrations or environmental influences, as well as forces acting on the vehicle in extreme situations, such as accidents, come into play.

[0003] The basic structure of a locking system is that a lock catch that can engage with the locking system is caught by the locking system and the movable component is fixed in its position. For this purpose, preferably, a locking tongue engages in the locking catch, wherein the locking tongue is held in the locked position by means of a pawl in the locked position or locked position. In particular, in the case of side doors, two locking positions are provided in the lock. There is a pre-locking position and a main locking position, in which the side door is completely locked.

[0004] In order to provide a sufficiently high holding force in the event of an accident, but also with respect to the dynamic loads during the operation of the motor vehicle, the locking mechanism including the lock tongue and the lock claw is made of a metal material and supported on a metal shaft, wherein the shaft is in turn held in a metal lock plate of the motor vehicle lock. Such a lock for a motor vehicle is known, for example, from DE 10 2012 214 534 A1. A lock box essentially made of metal is disclosed, which has a base surface with one or more side walls of a lock. The side walls of the lock box are essentially at right angles to the base surface. Two opposing side walls are usually provided. In this case, the lock box is U-shaped in cross section. If no side walls are provided, it is a lock plate with only one side wall. In this case, the access area is molded into the side wall and the base plate in the form of an opening, through which the motor vehicle lock can engage with the lock catch. When the lock box is generally discussed below, the situation of the lock plate should also be included at the same time.

[0005] It is also known from the literature that locks have a reinforcing plate, also made of metal, which serves to additionally rotatably fix the locking bolt and / or the locking pawl in order to further stabilize the mounting of the locking mechanism. In this case, the locking bolt and the locking pawl are usually located between the lock box and the reinforcing plate. The use of the reinforcing plate introduces maximum stability into the locking mechanism, since the rotation axis of the locking mechanism components can be supported on both sides by the locking plate and the reinforcing plate.

[0006] Since the components of a lock often need to be protected from dust and water, a lock mainly comprises a lock housing together with a lock cover for covering one or more components of the lock. The lock housing together with the lock cover are usually made of plastic for weight and manufacturing reasons. The lock housing and the lock cover can be one-piece or multi-piece. In addition, this covering can be used to prevent intrusion.

[0007] The striker usually interacts with a locking mechanism of an associated motor vehicle door lock. The striker and the motor vehicle door lock generally define a motor vehicle door locking system. The striker, in conjunction with the locking mechanism in the motor vehicle door lock, ensures that the associated motor vehicle door is securely and reliably locked.

[0008] For this purpose, the lock catch is usually connected to the motor vehicle body, for example the B-pillar or C-pillar of the associated motor vehicle body. In contrast, the motor vehicle door lock is located in the motor vehicle door to be locked. In principle, it can also be arranged in the opposite way.

[0009] Due to the primary locking function of the striker in conjunction with the locking mechanism in the motor vehicle door lock, on the one hand, a component is particularly relevant to safety and on the other hand, it is subject to special loads, especially in the event of an accident. In practice, the protection of the vehicle occupants in the event of a side impact is primarily dependent on how reliably the striker and the locking mechanism interacting therewith can withstand the forces. It therefore depends primarily on whether the motor vehicle door remains locked so that the safety devices provided in or on the motor vehicle door, such as side airbags, side impact protection devices, etc., can exert the desired effect.

[0010] The forces to be absorbed by the interaction between the motor vehicle door lock and the lock catch act directly between the locking mechanism contained in the motor vehicle door lock and the locking pin of the lock catch bow that engages with the locking mechanism. In this case, the locking mechanism comprises a locking tongue and at least one locking pawl, wherein, after the locking tongue engages in the locking bow of the lock catch during the locking movement of the door element, the locking pawl locks into the locking tongue and prevents the door element from opening. The locking mechanism can include a pre-locking part and a main locking part, which can be present in the door lock depending on the door element. Depending on the embodiment of the locking mechanism, the corresponding locking position, i.e. the main locking part or the pre-locking part, can be equipped with an opening torque or a locking torque, so that the deadlocking rod can be used to fix the locking position again. In order to be able to withstand the large forces that occur in the event of an accident, the locking mechanism components are at least partially made of metal material, supported in a metal shaft and held on a metal lock plate in the motor vehicle door lock.

[0011] In the prior art, various methods have been used to further develop such locks so that they can withstand greater forces than before in the event of a crash without breaking or generally mechanical damage. In practice, material deformations and breaks are often observed with locks, in particular in the transition from the lock bow to the lock plate.

[0012] In order to increase the forces to be withstood by means of the lock, various methods are known. For example, there are various methods, namely, the lock or its lock bow is provided with different cross-sectional thicknesses, as described in EP 2 031 158 A2, or the length of the lock is predetermined by means of a groove, as disclosed, for example, in DE 10 2010 021677 A1. However, the loads that actually occur in practice and the fractures that are usually associated with the lock in the event of a collision or extreme forces are not fully reflected in this way. Therefore, it has been shown that the connection between the lock bow and the lock plate is particularly important.

[0013] DE 10 2014 006 857 A1 discloses a lock for a motor vehicle door locking system, which has a lock plate and a lock bow fixed thereon, wherein the lock bow is configured with a lock pin, a middle section and a connecting pin. In order to strengthen the connection between the lock bow and the lock plate, the document proposes that the lock bow is connected to the lock plate in a form-fitting manner via at least one material thickened area. In order to achieve a form-fitting connection, the lock bow or the portion of the lock pin and / or the connecting pin that protrudes from the lock plate is upset. By means of the upset forging process, the lock plate is simultaneously provided with a bulge, which ensures that the upset cover formed on the bottom side of the lock plate based on the upset forging process can be spaced apart from the lock pin on the one hand and the connecting pin on the other hand relative to the vehicle body.

[0014] The solutions known from the prior art have in principle already proven to have reached their limits in newer developments in the vehicle industry. The use of batteries in hybrid vehicles or electric vehicles increases the loads that occur in the event of an accident. The batteries present in the motor vehicle increase the total weight of the motor vehicle by several times, so that the loads on the locking mechanism and the lock catch that occur in an accident are also increased. Therefore, it is necessary to find ways to increase the durability of the lock catch. The present invention is proposed on this basis. Summary of the invention

[0015] The object of the present invention is to provide an improved lock catch for a motor vehicle door locking system. The object of the present invention is in particular to improve the load capacity of the lock catch and to increase the breaking strength of the system comprising lock and lock catch.

[0016] 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. However, 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.

[0017] According to claim 1, the object of the present invention is achieved by providing a lock for a motor vehicle door locking system, which has a lock plate and a lock bow fixed to the lock plate, wherein the lock bow is constructed with a locking pin, a middle section and a connecting pin, wherein the lock bow is constructed in at least two parts. Now, the following feasibility is achieved by the design scheme of the lock according to the invention, so that the lock bow is uniquely matched to the loads in the event of an accident, in particular extreme loads. The individual loads in the event of an accident are particularly relevant to safety, because in particular in the event of an accident, it must be ensured that the door, hatch or cover remains locked. This is particularly important for side doors, because the vehicle passengers must be protected. Only in combination with the safe locking of the door can other safety systems, such as seat belts and airbags, play their full role. The loads in the event of a collision are very high and are simulated by tensile tests when designing the lock. Here, the lock is loaded until it breaks in the tensile test, so that on the one hand it can be determined whether the predetermined specifications are reached, and on the other hand weak points can be pointed out, so that a unique design scheme of the lock can be achieved. In particular, the present invention is based on this and indicates the possibility of improving the load-bearing capacity of a locking buckle.

[0018] The object of the present invention is achieved according to claim 1 by providing a motor vehicle locking system, in particular a motor vehicle door locking system, with a motor vehicle lock, which has: a locking mechanism comprising a bolt and at least one pawl, wherein the bolt can be locked in at least one locking position by means of the pawl; a reinforcement plate, wherein at least the axis of the bolt can be connected to at least one axis of the pawl by means of the reinforcement plate; a lock catch, wherein the lock catch is caught by the bolt at least in the locking position, wherein the lock catch and the reinforcement plate can be placed in a coupling position. The object of the present invention is achieved in terms of equipment technology by the structure according to the invention and a motor vehicle lock is provided, which has an increased load capacity, in particular with respect to the breaking strength. A locking system comprising a motor vehicle lock and a lock catch, which additionally interact with each other via a reinforcement plate, can provide a series of advantages related to the breaking strength. In addition to supporting the shaft of the locking mechanism, which is preferably received in the lock box, the reinforcement plate can be used additionally to stabilize the locking system under extreme load conditions. In particular, the breaking strength of the motor vehicle locking system can be increased by the joint action of the reinforcement plate and the lock catch. Here, the reinforcement plate is used as a component for supporting in the case of relative movement between the lock catch and the motor vehicle lock.

[0019] If we are talking about a lock for a motor vehicle according to the invention, this lock can be used at any location on the motor vehicle where a component that is supported in a pivotable and / or displaceable manner is arranged. This includes, for example, hatches, hoods, sliding doors, side doors or covers, without restricting the field of application. Preferably, the arrangement of the reinforcement plate according to the invention in a side door is used for a motor vehicle lock.

[0020] The locking mechanism has a locking tongue and at least one locking pawl. However, locking mechanisms equipped with two or more locking pawls or locking rods or deadlocking rods are also known. Preferably, the reinforcing plate overlaps at least the locking tongue and the locking pawl directly engaged with the locking tongue and connects the axes of the locking mechanism components to each other. However, in the case of locking mechanisms with more than one locking pawl, the reinforcing plate can also overlap and stabilize or fix more than two axes, that is, all components engaged with the locking mechanism and their rotation axes. It is also known that the reinforcing plate is additionally used, for example, to support a gear arranged in a motor vehicle lock.

[0021] The lock plate, which can also be designed as a lock box, is made of metal material, in particular as a stamped part, as described at the beginning. If the metal reinforcement in the motor vehicle lock has a flat extension, it is called a lock plate. If the lock plate additionally has a bend, which, for example, grips the entry area of ​​the lock catch, it is called a lock box. The lock box can have one, two or more bends and at least partially grip the lock housing. In the following, the term "lock plate" is used for all these embodiments. On the lock plate, the locking mechanism components are received in the metal shaft, wherein the metal shaft and the reinforcement plate can additionally be received in a fixed position. The locking mechanism components are therefore supported in the lock box and the reinforcement plate.

[0022] As mentioned above, the lock according to the invention not only relates to side doors, but can also be used in the area of ​​hoods, tailgates, sliding doors, covers, foldable bench seats, etc., and can be used at any location where components that can be pivoted or displaced on the motor vehicle must be kept fixed in their position by means of a locking mechanism.

[0023] In a further development of the invention, the reinforcing plate can be placed in an engagement position in at least one locking position of the locking mechanism, the engagement position being between the locking tongue and the projection and / or the middle section of the lock catch. The locking mechanism can act together with the lock catch in at least one locking position. However, depending on the use of the locking system, two locking positions, i.e., a pre-locking position and a main locking position, may also be required. In at least one locking position, preferably the main locking position, the reinforcing plate enters an engagement position between the locking tongue and the projection or the middle section of the lock catch. In other words, the reinforcing plate enters the area of ​​the lock catch in such a way that the reinforcing plate can act together with the lock catch.

[0024] The interaction between the lock catch and the projection or the projection and the middle section or only the middle section can achieve that in extreme cases (in which the lock catch moves relative to the lock and moves out of the lock) the lock catch comes into contact. In this case, the reinforcing plate can exert an additional stabilizing effect on the lock catch, thereby increasing the tear resistance, i.e. preventing or delaying the lock catch from tearing out of the engagement area with the lock tongue. This is particularly advantageous due to the increasing and further increasing requirements on the load capacity of motor vehicle locking systems and improves the locking systems for the increased requirements.

[0025] Advantageously, the lock has a projection that at least partially protrudes from the locking pin. "The lock bow is constructed with a projection in the direction of the longitudinal axis of the middle section" can be achieved here, and an enlarged joint surface can be provided between the lock and the reinforcement plate. The lock preferably includes a lock plate and a lock bow. According to the embodiment and the requirements for the lock, the lock bow can be constructed in one piece or in multiple pieces. According to the requirements and the embodiment, the lock bow can also have an angled, S-shaped or rounded shape at least in the area of ​​the connecting tab. The lock bow comprising the connecting tab, the middle tab and the locking pin can be connected to the lock plate in one piece or in multiple pieces, preferably by riveting. An alternative embodiment is formed in the following case, that is, the lock plate, at least the connecting tab and the middle section are made of steel sheet in one piece, for example, and the locking pin is connected to the punched and bent parts by riveting on both sides, for example. Therefore, the present invention is not bound by the embodiment of the lock, but relates to the interaction between the reinforcement plate and the lock. If the locking catch has a projection arranged in the extension of the middle section, there is the possibility of increasing the overlap between the locking catch and the reinforcement plate. The increase in overlap can in turn lead to an increase in the load-bearing capacity of the motor vehicle locking system.

[0026] A further design variant of the invention is achieved if a positive overlap between the lock catch and the reinforcement plate, in particular in at least one locking position of the locking mechanism, can be achieved. When at least the pre-locking position of the locking mechanism, but preferably the main locking position, is assumed, the reinforcement plate is at least partially in an overlapping position with the lock catch. It can be advantageous here that the reinforcement plate extends, for example, positively over at least one region of the locking pin and at least partially grips the locking pin in a positively locking manner. The positively locking engagement can also extend over the middle section of the lock catch on one or both sides. A positively locking mutual engagement can be achieved here so that the overlap between the lock catch and the reinforcement plate can be maximized.

[0027] A preferred embodiment of the lock that interacts with the reinforcement plate is achieved if the lock has a projection, in particular a projection in the longitudinal extension direction of the middle section of the lock. The lock has a middle section, which extends essentially parallel to the lock plate. In parallel with this, the locking mechanism, in particular the locking tongue, moves around the locking pin. According to the invention, at least one local overlap between the reinforcement plate and the lock is provided between the middle section and the locking tongue. If the middle section is now extended beyond the locking pin, on the one hand, a simple embodiment of the lock is achieved in terms of design and manufacturing technology, but on the other hand, the overlap between the lock and the reinforcement plate can also be increased. Preferably, the projection is extended in the longitudinal extension direction of the middle section, so that an overlap is formed in the longitudinal extension direction of the middle section, in particular beyond the connecting area between the locking pin and the middle section.

[0028] Another design variant of the invention is achieved if the latch has a projection in the plane of the latch middle section, wherein the projection extends substantially in a direction transverse to the center axis of the middle section. In addition to the configuration of the projection in the longitudinal extension direction of the middle section, the projection can also extend in a lateral direction, but in the same plane as the middle section and in a lateral orientation relative to the center axis of the middle section. Therefore, depending on the position requirements or the structural space in the motor vehicle, the projection can extend from the middle section or the center axis of the middle section, for example at a right angle. In this case, the projection can be arranged, for example, in the area of ​​the locking pin and in a plane parallel to the middle section or the latch plate. When locking the movable component and when reaching at least one locking position, the reinforcement plate then arrives behind the projection and can thus increase the overlap and increase the load capacity of the motor vehicle locking system.

[0029] If the projection extends in more than one direction in the plane of the middle section, an advantageous design variant of the invention can be achieved. Depending on the requirements for the load capacity of the motor vehicle locking system in the interaction between the motor vehicle lock and the lock catch, the projection on the lock catch can extend from the center axis of the middle section in multiple directions. It can therefore also be achieved according to the invention that the middle section has one circumferential extension or two or more extensions on the projection around the locking pin in the circumferential direction. Depending on the arrangement in the motor vehicle, in particular, for example, on the B-pillar or C-pillar of the motor vehicle, a suitable shape of the overlap or extension or projection can also be selected in order, for example, to ensure a continuous outer shape of the projection, thereby preventing it from getting caught or hooked, for example, on clothing when entering the motor vehicle.

[0030] In a preferred embodiment, the reinforcing plate can be placed in an engagement position with the lock catch at least on one side. According to this embodiment of the locking system and the lock catch, the reinforcing plate can be moved on one side on the lock catch into an engagement position or engagement area. Here, "on one side" means that the reinforcing plate extends in the direction of the middle section at least on one side of the locking pin, so that the reinforcing plate extends to the lock catch at least on one side, i.e. on one side of the locking pin, as seen in the direction of the longitudinal axis of the middle section. Of course, it is also conceivable that the locking plate extends in the circumferential direction and on more than one side to the middle section and extends around the locking pin. Preferably, the reinforcing plate grasps the locking pin and extends at least partially along the projection and / or the middle section.

[0031] Advantageously, the reinforcing plate is made of a punched and bent part as an integral stamped part. In order to be able to withstand higher forces in the event of an accident, the reinforcing plate is made of sheet steel. This is usually also suitable for reinforcing plates in use.

[0032] In terms of method technology, the object of the invention is achieved in that a method is provided for locking a component, in particular a side door, which is arranged movably on a motor vehicle using a motor vehicle locking system according to any of the preceding claims, wherein when the component is locked and reaches at least one locking position of the motor vehicle lock, the reinforcement plate is at least partially moved into an engagement position with the latch. According to the method for locking a movable component on a motor vehicle, the fracture resistance can be increased so that an increased load capacity can be achieved for the motor vehicle locking system in the event of an accident and therefore extreme loads applied to the motor vehicle. The cooperation between the latch, the reinforcement plate and the motor vehicle lock provides the possibility of introducing an additional supporting effect into the latch, thereby increasing the stability of the locking system. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be described in detail below based on embodiments with reference to the accompanying drawings. However, the following principle applies, namely, the embodiments do not limit the present invention, but only illustrate advantageous design forms of the present invention. The features shown can be implemented individually or in combination with other features of the specification and the claims.

[0034] The figure shows:

[0035] Figure 1 A side view of a motor vehicle locking system is shown, wherein only the essential components are shown for illustrating the invention,

[0036] Figure 2 A top view showing the motor vehicle locking system according to the invention in the main locking position, and

[0037] Figure 3 An alternative embodiment of a projection on the latch that interacts with the reinforcement plate is shown. DETAILED DESCRIPTION

[0038] exist Figure 1 , a schematic diagram of a motor vehicle door locking system 1 is shown in a side view of a lock catch 2 , a lock box 3 , a locking mechanism 4 and a reinforcement plate 5 . Figure 1 The motor vehicle locking system 1 is shown in the main locking position of the locking mechanism 4, wherein the locking tongue 6 is shown engaged with the lock catch 2. Here, the load arm 7 of the locking tongue 6 grasps the locking pin 8 of the lock catch 2. The lock catch 2 in this embodiment comprises a punched and bent part 9 and a locking pin 8 designed as a pin. Here, the lock catch plate 10, the connecting part 11, the middle section 12 and the projection 13 are made integrally from sheet steel to form the punched and bent part 9. The locking pin 8 can be connected to the punched and bent part 9 on both sides, for example, by riveting.

[0039] When the reinforcement plate 5 reaches Figure 1 1 , the reinforcing plate 5 is brought into the engaged position when in the main locking position shown in , in which the reinforcing plate is displaced between the locking tongue 6 and the projection 13. The projection 13 projects beyond the reinforcing plate 5, thereby forming an overlap S between the reinforcing plate 5 and the projection 13.

[0040] If the lock catch 2 is displaced with excessive force in the event of an accident, the reinforcement plate 5 can come into contact with the projection 13 in a supporting manner. The reinforcement plate thus reinforces the motor vehicle locking system 1 in the event of extreme loads. In the event of extreme loads, the lock plate 3 or the lock box 3 made of a metal punched and bent part stabilizes the locking mechanism 4 via the metal axis of the locking mechanism 4, 6. In addition, the reinforcement plate 5 connects at least the rotation axis of the lock tongue with the pawl, in particular the pre-locking pawl, thereby providing a stable motor vehicle lock. This motor vehicle lock stabilized by the reinforcement plate 5 can now be additionally supported in the following manner in interaction with the lock catch 2, i.e., the reinforcement plate comes into contact with the projection 13 of the lock catch 2.

[0041] It should be pointed out again that the design of the lock catch 2 is shown only as an example. The design of the lock catch in the form of a punched and bent part 9 with a locking pin 8 can also be formed by another combination. An important feature of the invention is that the region of the lock catch 2 and in particular the middle section 12 and / or the projection 13 engage with the reinforcement plate 5 for the locking mechanism 4 when the lock catch 2 is displaced. As also shown in the exemplary embodiment, the locking pin 8 can have a plastic jacket 14 for minimizing noise.

[0042] Now in Figure 2 2 shows by way of example the design of the reinforcement plate 5 and the interaction between the reinforcement plate 5 and the buckle 2 . Figure 2 The latch 2 and the locking mechanism 4 are shown in a top view, wherein the main locking position of the locking mechanism 4 is also shown here. The locking bolt 6 grips the locking pin 8 with its load arm 7 and is held by the pawl 15 in the main locking position.

[0043] As can be clearly seen, the reinforcement plate 5 stabilizes the locking mechanism 4, wherein the pivot axes 16, 17 of the locking mechanism 4 are held by the reinforcement plate. Here, the reinforcement plate 5 is designed in such a way that the projection 13 on the lock catch 2 protrudes beyond the reinforcement plate 5, so that an overlap S is formed between the projection 13 and the reinforcement plate 5. If the lock catch 2 is now displaced relative to the motor vehicle lock, the reinforcement plate 5 engages with the projection 13 of the lock catch and stabilizes the motor vehicle locking system 1. This leads to an increased robustness or a higher load capacity of the motor vehicle door locking system. Although the discussion here is about a motor vehicle door locking system, the application is not limited to this, but generally relates to a motor vehicle lock, which holds a component that is movably arranged on the motor vehicle in the interaction between the locking mechanism 4 and the lock catch 2.

[0044] exist Figure 3 , a top view of the locking mechanism 4 and the locking catch 18 is shown again. Identical components are provided with the same reference numerals. The main locking position of the locking mechanism 4 is shown again, in which the load arm 7 grips the locking pin 8 and is held in the main locking position by the pawl 15. The essential difference from the previous embodiment is the design of the projection 19, in which the projection 19 extends at least partially in the circumferential direction around the locking pin 8. In this embodiment, the projection has two extensions 20, 21, which also extend in the circumferential direction over the reinforcing plate 5. As in the embodiment according to Figure 2 As in the embodiment of Figure 3In the embodiment shown, the projection 19 is arranged in one plane with the middle section 22, so that the projection 19 extends substantially parallel to the reinforcement plate 5, the locking mechanism 4 and the lock box 3 in the motor vehicle locking system 1. In the embodiment shown, the projection 19 is designed as a component of the middle section 22 and thus as a component of the middle section, the connecting part and the locking plate 24. By means of the above combination and in particular the projections 13, 19 between the reinforcement plate 5 and the overlap S, additional stabilizing components can be introduced into the motor vehicle locking system 1, and the alternating stresses generally lead to an increased fracture resistance.

[0045] List of reference numerals:

[0046] 1 Motor vehicle door locking system

[0047] 2.18 Lock

[0048] 3 Lock Box

[0049] 4 Locking mechanism

[0050] 5 Reinforcement plate

[0051] 6. Lock tongue

[0052] 7 Load Arm

[0053] 8 Lock pin

[0054] 9 Punching and bending parts

[0055] 10, 24 Locking plate

[0056] 11, 23 Connection

[0057] 12, 22 middle

[0058] 13, 19 protrusion

[0059] 14 Plastic jacket

[0060] 15 Locking claw

[0061] 16, 17 axis

[0062] 20, 21 extension

[0063] S Overlap

[0064] F-Force

Claims

1. A motor vehicle door locking system (1), comprising a motor vehicle lock, the motor vehicle lock comprising: a locking mechanism (4), the locking mechanism comprising a locking tongue (6) and at least one locking pawl (15), wherein: The locking tongue (6) can be locked in at least one locking position by means of a locking claw (15); a reinforcement plate (5), wherein at least an axis (16) of the locking tongue (6) can be connected to an axis (17) of at least one locking claw (15) by means of the reinforcement plate (5); a locking catch (2, 18), wherein the locking catch (2, 18) is grasped by the locking tongue (6) at least in the locking position, It is characterized in that The lock catch (2, 18) and the reinforcement plate (5) can be placed in an engaged position.

2. The motor vehicle door locking system (1) according to claim 1, characterized in that The reinforcement plate (5) can be placed in an engagement position in at least one locking position of the locking mechanism (4), the engagement position being located between the locking tongue (6) and the projection (13, 19) and / or the middle section (12, 22) of the lock catch (2, 18).

3. The motor vehicle door locking system (1) according to claim 1 or 2, characterized in that: The lock catch (2, 18) has a projection (13, 19) which at least partially protrudes beyond the lock pin (8).

4. The motor vehicle door locking system (1) according to any one of claims 1 to 3, characterized in that: A positive-locking overlap (S) can be achieved between the locking catch (2, 18) and the reinforcing plate (5), in particular in at least one locking position of the locking mechanism (4).

5. The motor vehicle door locking system (1) according to any one of claims 1 to 4, characterized in that: The lock buckle (2, 18) has a protrusion (13, 19), in particular a protrusion (13, 19) along the longitudinal extension direction of a middle section (12, 22) of the lock buckle (2, 18).

6. The motor vehicle door locking system (1) according to any one of claims 1 to 5, characterized in that: The lock catch (2, 18) has a projection (13, 19) in the plane of a middle section (12, 22) of the lock catch (2, 18), wherein the projection (13, 19) extends substantially in a direction transverse to a center axis of the middle section (12, 22).

7. The motor vehicle door locking system (1) according to any one of claims 1 to 6, characterized in that: The projections (13, 19) extend in more than one direction in the plane of the midsection (12, 22).

8. The motor vehicle door locking system (1) according to any one of claims 1 to 7, characterized in that: The reinforcing plate (5) can be placed in an engaging position with the latch (2, 18) at least on one side.

9. The motor vehicle door locking system (1) according to any one of claims 1 to 8, characterized in that: The reinforcing plate (5) is designed as an integrated metal punched and bent part.

10. A method for locking a movable component mounted on a motor vehicle, in particular a side door, using a motor vehicle door locking system (1) according to any of the preceding claims, wherein when the component is locked and reaches at least one locking position of the motor vehicle lock, a reinforcement plate (5) is at least partially moved into an engagement position with a lock catch (2, 18).

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