Motor vehicle lock, in particular motor vehicle door lock

Abstract

The invention relates to a method for locking a component that is moveably arranged on a motor vehicle, and a motor vehicle door lock having a motor vehicle lock with a locking mechanism (4) formed by a rotary latch (6) and at least one pawl df), wherein the rotary latch (6) can be engaged in at least one latch position by means of the pawl (15), a reinforcing plate (5), wherein at least the shafts (16, 17) of the rotary latch (6) and at least one pawl (15) can be connected by means of the reinforcing plate (5), a lock holder (2, 18), wherein the rotary latch (6) engages around the lock holder (2, 18) at least in a latch position, and wherein the lock holder (2, 18) can be brought into an engaging position with the reinforcing plate (5).

Description

[0001] Description

[0002] Motor vehicle lock, especially motor vehicle door lock

[0003] Ending

[0004] The invention relates to a motor vehicle lock, in particular a motor vehicle door lock, comprising a motor vehicle lock with a locking mechanism consisting of a rotary latch and at least one pawl, wherein the rotary latch can be locked in at least one locking position by means of the pawl, a lock case for supporting the locking mechanism, wherein the locking parts are rotatably mounted by means of axles held in the lock case, a reinforcing plate, wherein at least the axles of the rotary latch and at least one pawl can be connected by means of the reinforcing plate, and a lock holder, wherein the lock holder is encompassed by the rotary latch at least in one locking position.

[0005] A motor vehicle lock is used as a locking system where movable components on the vehicle, such as doors, flaps or hoods, must be held securely in place while the vehicle is in operation. The locking systems are of great importance here because, as safety-relevant components, they must ensure that movable components on the vehicle remain closed even in extreme situations. This is easily understandable because, for example, an unintentionally opening engine hood can put the driver and / or passengers in life-threatening situations. The forces acting on the vehicle while driving, such as shocks, vibrations or environmental influences, play a role, as do the forces acting on the vehicle in the event of an extreme situation, such as an accident.

[0006] The basic design of a locking system is such that a lock holder engages with the locking system, and the movable component is secured in its position. For this purpose, a rotary latch preferably engages the lock holder, with the rotary latch being held in the locked or latched position by a pawl. Especially for side doors, two latching positions in the lock are required. There is a pre-latching position and a main latching position, in which the side door is completely closed.

[0007] In order to withstand the high holding forces in the event of an accident, as well as the dynamic stresses during operation of the motor vehicle, the locking mechanism consisting of the rotary latch and pawl is made of a metallic material and mounted on metallic axles, with the axles in turn being held in a metallic 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. Disclosed is a lock case essentially made of metal, which has a base area with one or more side walls of the lock. One side wall of the lock case generally forms a right angle with the base area. Typically, there are two side walls facing each other. In cross-section, the lock case then has a U-shape. If there are no side walls, it is a lock plate that has only one side wall.An inlet area in the form of an opening is then molded into the side wall and the base plate, through which the vehicle lock can engage with the lock holder. Whenever we refer to a lock case in general, this also includes the case of the lock plate.

[0008] The document also discloses that the lock has a reinforcement plate, also made of metal, which serves to provide additional rotatable mounting for the rotary latch and / or pawl to further stabilize the locking mechanism. The rotary latch and pawl are then usually located between the lock case and the reinforcement plate. The use of the reinforcement plate provides maximum stability to the locking mechanism, as the lock plate and the reinforcement plate support the rotational axes of the locking mechanism parts on both sides.

[0009] Since lock components must be regularly protected from dust and water, a lock generally consists of a lock housing and a lock cover, which covers one or more of the lock's components. The lock housing and lock cover are usually made of plastic for weight and manufacturing reasons. The lock housing and lock cover can be one-piece or multi-piece. Such a cover can also serve as protection against burglary.

[0010] The lock holder typically interacts with a locking mechanism of a corresponding motor vehicle door lock. The lock holder and motor vehicle door lock generally define the motor vehicle door locking mechanism. The lock holder, in conjunction with the locking mechanism in the motor vehicle door lock, ensures secure and reliable locking of the corresponding motor vehicle door. For this purpose, the lock holder is typically attached to a motor vehicle body, for example, a B- or C-pillar of the corresponding motor vehicle body. The motor vehicle door lock, on the other hand, is located in the motor vehicle door to be locked. In principle, the reverse is also possible.

[0011] Due to the primary locking function of the lock holder in conjunction with the locking mechanism in the vehicle door lock, it is, on the one hand, a particularly safety-relevant component, but, on the other, is subjected to particular stresses, particularly in the event of an accident. Indeed, the protection of vehicle occupants in a side impact depends largely on how reliably the lock holder and the interacting locking mechanism can absorb the applied forces. The primary factor here is that the vehicle door remains closed so that safety features provided in or on the vehicle door, such as side airbags, side impact protection, etc., can exert their desired effect.

[0012] The forces absorbed through the interaction between the motor vehicle door lock and the lock holder act directly between the locking mechanism contained in the motor vehicle door lock and the locking bolt of the lock holder bracket, which engages with the locking mechanism. The locking mechanism consists of a rotary latch and at least one pawl, whereby after the rotary latch engages the locking bracket of the lock holder during a closing movement of the door element, the pawl engages in the rotary latch and prevents the door element from opening. The locking mechanism can have a preliminary detent and a main detent, which may be present in the door lock depending on the door element. Depending on the design of the locking mechanism, the respective detent position, i.e. main detent or preliminary detent, can be equipped with an opening or closing moment, so that a blocking lever can be used to secure the detent position.In order to be able to absorb the high forces that occur in the event of an accident, the locking parts are made at least in part from a metallic material, mounted in metallic axes and held on a metallic lock plate in the vehicle door lock.

[0013] Various approaches have already been pursued in the state of the art to further develop such lock holders so that they can absorb far greater forces than before in the event of a crash without causing tearing or general mechanical damage. In practice, material deformations and tearing are often observed in lock holders, particularly at the transition from the lock holder bracket to the lock holder plate.

[0014] In order to increase the forces that can be absorbed by the lock holder, various approaches have been proposed. For example, there are various approaches to equipping the lock holder or its lock holder bracket with different cross-sectional thicknesses, as described, for example, in EP 2 031 158 A2, or to specify an elongation of the lock holder with the help of an indentation, as disclosed, for example, in DE 10 2010 021 677 A1. However, the loads actually occurring in practice and the usually associated crack behavior of the lock holder in the event of a crash or when exposed to extreme forces are only inadequately reflected in these approaches. This is because it has been shown that the connection between the lock holder bracket and the lock holder plate is a particularly important point.

[0015] DE 10 2014 006 857 A1 discloses a lock holder for a motor vehicle door lock, comprising a lock holder plate and a lock holder bracket attached thereto, wherein the lock holder bracket is formed with a locking bolt, a center piece, and a connecting bolt. To reinforce the connection between the lock holder bracket and the lock holder plate, the document proposes that the lock holder bracket be positively connected to the lock holder plate via at least one material-thickened area. To create the positive connection, the part of the lock holder bracket or the locking bolt and / or the connecting bolt that extends beyond the lock holder plate is compressed.As a result of the upsetting process, the lock holder plate is also equipped with a bulge, which ensures that the upsetting caps created on the underside of the lock holder plate as a result of the upsetting process can be spaced apart from the locking bolt on the one hand and the connecting bolt on the other hand in relation to the body.

[0016] State-of-the-art solutions have generally proven themselves, but are reaching their limits with newer developments in the automotive industry. The use of batteries in hybrid or electric vehicles increases the stresses generated in an accident. The batteries present in motor vehicles increase the overall weight of the vehicle many times over, so that the stresses on the locking mechanism and lock holder generated in an accident are also increased. Consequently, approaches must be found to increase the stability of the lock holder.

[0017] This is where the invention comes in.

[0018] The object of the invention is to provide an improved lock holder for a motor vehicle door lock. In particular, the object of the invention is to improve the load-bearing capacity of the lock holder and to increase the tensile strength of the lock and lock holder system.

[0019] The object is achieved according to the invention by the features of independent patent claim 1. Advantageous embodiments of the invention are specified in the subclaims. However, it should be noted that the exemplary embodiments described below are not limiting; rather, any desired variations of the features described in the description and the subclaims are possible.

[0020] According to claim 1, the object of the invention is achieved by providing a lock holder for a motor vehicle door lock, comprising a lock holder plate and a lock holder bracket fastened to the lock holder plate, wherein the lock holder bracket is designed with a locking bolt, a center piece, and a connecting bolt, and wherein the lock holder bracket is designed in at least two parts. The design of the lock holder according to the invention now creates the possibility of designing the lock holder bracket so that it can be individually adapted to the loads, in particular the extreme loads, during an accident. The individual loads during an accident are particularly relevant to safety, since it must be ensured, especially in the event of an accident, that the doors, flaps, or hoods remain closed.The side doors are particularly important because the vehicle occupants must be protected. Now, in combination with the secure locking of the door, other safety systems such as seat belts and airbags can unfold their full effect. The loads in a crash are extremely high and are simulated by tensile tests during the design of the lock holder. In the tensile test, the lock holder is stressed to the point of breaking in order to determine, on the one hand, whether the specified specifications are met and, on the other hand, to identify weak points so that an individual design of the lock holder is possible. This is where the invention comes in, and shows a possibility for improving the load-bearing capacity of the lock holder.

[0021] According to claim 1, the object of the invention is achieved in that a motor vehicle lock, in particular a motor vehicle door lock, is provided, comprising a motor vehicle lock with a locking mechanism consisting of a rotary latch and at least one pawl, wherein the rotary latch can be locked in at least one latching position by means of the pawl, a reinforcing plate, wherein at least one axis of the rotary latch and at least one axis of the pawl can be connected to the reinforcing plate by means of the reinforcing plate, a lock holder, wherein the lock holder is encompassed by the rotary latch at least in one latching position, and wherein the lock holder can be brought into an engagement position with the reinforcing plate.The inventive design achieves the object of the invention in terms of device technology and provides a motor vehicle lock with increased load-bearing capacity, particularly with regard to tensile strength. The locking system comprising the motor vehicle lock and lock holder, which additionally interact with each other via the reinforcement plate, can provide a number of advantages with regard to tensile strength. In addition to supporting the axes of the locking mechanism, which are preferably accommodated in the lock case, the reinforcement plate can also serve to stabilize the locking system in the event of extreme loads. In particular, the interaction of the reinforcement plate and lock holder can increase the tensile strength of the motor vehicle lock.The reinforcement plate serves as a means of support in the event of relative movement between the lock holder and the vehicle lock.

[0022] If, according to the invention, a lock for a motor vehicle is referred to, this lock can be used wherever pivoting and / or displaceably mounted components are arranged on the motor vehicle. This refers, for example, to flaps, hoods, sliding doors, side doors, or covers, without limiting the area of ​​application to these. The arrangement of the

[0023] Reinforcement plate used in side doors for automotive locksmiths.

[0024] The locking mechanism has a rotary latch and at least one pawl. However, locking mechanisms are also known that are equipped with two or more pawls or locking or blocking levers. The reinforcement plate preferably overlaps at least the rotary latch and the pawl that directly engages with the rotary latch and connects the axes of the locking components to one another. In locking mechanisms with more than one pawl, the reinforcement plate can also overlap and stabilize or secure more than two axes, namely all components that engage with the locking mechanism and their axes of rotation. It is also known that the reinforcement plate is additionally used, for example, to support gears arranged in the vehicle lock.

[0025] The lock plate, which can also be designed as a lock case, is, as described in the introduction, made of a metallic material, in particular as a stamped part. A lock plate is used when the metallic reinforcement in the motor vehicle lock has a flat extension. If the lock plate also has a bevel, which, for example, encompasses the inlet area of ​​the lock holder, it is referred to as a lock case. The lock case can have one, two, or more bevels and can encompass the lock housing at least in part. The term "lock plate" is used below for all these embodiments. The locking mechanism parts are mounted on the lock plate in metallic axes, whereby the metallic axes and the reinforcement plate can also be secured in position. The locking mechanism parts are thus mounted in the lock case and the reinforcement plate.

[0026] As already indicated above, the lock holder according to the invention not only relates to a side door, but can also be used in the area of ​​a hood, tailgate, sliding door, cover, with foldable seats, etc., in fact anywhere where pivoting or sliding components on the motor vehicle must be held securely in place by means of a locking mechanism. In a further development of the invention, the reinforcement plate can be brought into an engagement position between the rotary latch and a projection and / or a center piece of the lock holder in at least one locking position of the locking mechanism. The locking mechanism can interact with the lock holder in at least one locking position. Depending on the application of the locking system, two locking positions, i.e. a preliminary locking position and a main locking position, may also be required.In at least one locking position, preferably the main locking position, the reinforcement plate engages between the rotary latch and the projection or center piece of the lock holder. In other words, the reinforcement plate moves into the area of ​​the lock holder in such a way that the reinforcement plate can interact with the lock holder.

[0027] The interaction between the lock holder and the projection, or the projection and the center piece, or the center piece alone, enables the lock holder to be held in place in the event of an extreme situation in which the lock holder moves relative to and out of the lock. The reinforcement plate can then exert an additional stabilizing effect on the lock holder, preventing or delaying tearing, i.e., the lock holder being torn out of the engagement area with the rotary latch. This is particularly advantageous given the increased and ever-increasing demands on the load-bearing capacity of vehicle locking devices, and improves the locking system to meet these increased requirements.

[0028] The lock holder advantageously has a projection that extends at least partially beyond a locking bolt. The design of a lock holder bracket with a projection in the direction of a longitudinal axis of the center piece makes it possible to provide an enlarged engagement surface between the lock holder and the reinforcement plate. The lock holder preferably consists of a lock holder plate and a lock holder bracket. Depending on the design and requirements of the lock holder, the lock holder bracket can be designed in one piece or in several parts. Depending on the requirements and design, the lock holder bracket can also have an angled, S-shaped, or rounded shape, at least in the area of ​​a connecting web. The lock holder bracket consisting of the connecting web, center web, and locking bolt can be connected to the lock holder plate in one piece or in several parts, preferably by riveting.An alternative embodiment is formed when the lock holder plate and at least the connecting web and the center piece are made in one piece, for example, from a sheet steel, and the locking bolt is connected, for example, on both sides to the stamped and bent part by rivets. The invention is therefore not tied to the design of the lock holder, but rather relates to the interaction of the reinforcement plate with the lock holder. If the lock holder has a projection arranged in an extension of the center piece, it is possible to increase the overlap between the lock holder and the reinforcement plate. Increasing the overlap can, in turn, lead to an increase in the load-bearing capacity of the motor vehicle lock.

[0029] If a positive engagement between the lock holder and the reinforcement plate can be achieved, in particular in at least one latching position of the locking mechanism, a further embodiment of the invention results. The reinforcement plate is at least partially in an overlapping position with the lock holder when at least the pre-latching, but preferably the main latching position of the locking mechanism is assumed. It can be advantageous if the reinforcement plate, for example, extends in a positive engagement over at least one area of ​​the locking bolt and engages around the locking bolt in a positive engagement at least in part. The positive engagement can also extend over the center piece of the lock holder on one side or both sides. The positive engagement makes it possible to maximize the engagement between the lock holder and the reinforcement plate.

[0030] If the lock holder has an overhang, in particular an overhang in the direction of a longitudinal extension of a center piece of the lock holder, a preferred embodiment of the lock holder results in interaction with the reinforcement plate. The lock holder has a center piece which extends essentially parallel to the lock holder plate. Parallel to this, the locking mechanism and in particular the rotary latch moves around the locking bolt. According to the invention, there is at least a partial overlap between the reinforcement plate and the lock holder between the center piece and the rotary latch. If the center piece is now extended beyond the locking bolt, this not only results in a design of the lock holder that is simple in terms of construction and production technology, but also, conversely, a possibility of increasing the overlap between the lock holder and the reinforcement plate.Preferably, the projection is extended in the direction of a longitudinal extension of the middle piece, so that an overlap is obtained in the direction of the longitudinal extension of the middle piece, in particular beyond the connection area between the locking bolt and the middle piece.

[0031] If the lock holder has a projection in a plane of the center piece of the lock holder, wherein the projection extends essentially in a direction transverse to a center axis of the center piece, this results in a further embodiment of the invention. In addition to the formation of the projection in the direction of the longitudinal extent of the center piece, the projection can also extend in lateral directions but in a plane with the center piece and in a lateral alignment to a center axis of the center piece. Depending on the space required or installation space in the motor vehicle, the projection can therefore extend, for example, at right angles from the center piece or a center axis of the center piece. The projection can then be arranged, for example, in the area of ​​the locking bolt and in a plane parallel to the center piece or to the lock holder plate.When the movable component is closed and at least one locking position is reached, the reinforcement plate moves behind the overhang and thus makes it possible to increase the overlap and the load-bearing capacity of the vehicle lock.

[0032] If the overhang extends in more than one direction in a plane of the center piece, then again an advantageous embodiment of the invention can be achieved. Depending on the requirements for the load-bearing capacity of the motor vehicle lock in the interaction between the motor vehicle lock and the lock holder, the overhang on the lock holder can extend in several directions starting from a center axis of the center piece. Thus, according to the invention, it can also happen that the center piece has one circumferential or two or more extensions of overhangs around the locking bolt. Depending on the arrangement in the motor vehicle, in particular for example on the B or C pillar of the motor vehicle, a suitable form of covering or extension ora projection can be selected to ensure, for example, a continuous external shape of the projection in order to prevent, for example, items of clothing from getting caught or hooked when getting into the vehicle.

[0033] In a preferred embodiment, the reinforcement plate can be brought into engagement with the lock holder on at least one side. Depending on the design of the locking system and the lock holder, the reinforcement plate can move on one side of the lock holder into the engagement position. "One-sided" here means that the reinforcement plate extends at least on one side of the locking bolt in the direction of the center piece, so that the reinforcement plate extends at least on one side, i.e. on one side of the locking bolt, viewed in the direction of the longitudinal axis of the center piece, towards the lock holder. Of course, it is also conceivable for the lock plate to extend circumferentially and on more than one side towards the center piece and around the locking bolt. The reinforcement plate preferably encompasses the locking bolt and extends at least partially along the projection and / or the center piece.

[0034] The reinforcement plate is advantageously manufactured as a one-piece stamped part from a stamped and bent part. In order to be able to absorb the high forces in the event of an accident, the reinforcement plate is manufactured from sheet steel. This is also generally common practice for the reinforcement plates currently in use. From a process engineering perspective, the object of the invention is achieved by providing a method for locking a component movably arranged on a motor vehicle, in particular a side door, with a motor vehicle lock according to one of the preceding claims, in which, when the component is closed and the motor vehicle lock reaches at least one latching position, a reinforcement plate is moved at least partially into an engagement position with a lock holder.According to the method for locking a movable component on a motor vehicle, an increase in tensile strength can be provided to enable increased resilience for the vehicle lock in the event of an accident and thus extreme stress on the vehicle. The interaction between the lock holder, reinforcement plate, and vehicle lock offers the possibility of introducing an additional supporting effect into the lock holder, thereby increasing the stability of the lock.

[0035] The invention is explained in more detail below with reference to the accompanying drawings using exemplary embodiments. However, the principle applies that the exemplary embodiments do not limit the invention, but merely represent advantageous embodiments of the invention. The features presented can be implemented individually or in combination with other features of the description and the patent claims.

[0036] It shows: Figure 1 a side view of a motor vehicle closure, wherein only the components essential for explaining the invention are shown,

[0037] Figure 2 is a plan view of a motor vehicle locking system according to the invention in a main locking position, and

[0038] Figure 3 shows an alternative embodiment of a projection on the lock holder in conjunction with a reinforcement plate.

[0039] Figure 1 shows a basic representation of a motor vehicle door lock 1 in a side view of a lock holder 2, a lock case 3, a locking mechanism 4 and a reinforcement plate 5. Figure 1 shows the motor vehicle lock 1 in a main locking position of the locking mechanism 4, wherein a rotary latch 6 is shown engaged with the lock holder 2. A load arm 7 of the rotary latch 6 engages around a locking bolt 8 of the lock holder 2. The lock holder 2 in this embodiment is formed from a stamped and bent part 9 and a locking bolt 8 designed as a bolt. The lock holder plate 10, connecting piece 11, center piece 12 and projection 13 are manufactured in one piece from a steel sheet and as a stamped and bent part 9. The locking bolt 8 can be connected to the stamped and bent part 9 on both sides, for example by riveting.

[0040] When the main locking position shown in Figure 1 is reached, the reinforcement plate 5 moves into an engaged position in which the reinforcement plate slides between the rotary latch 6 and the projection 13. The projection 13 projects beyond the reinforcement plate 5, resulting in an overlap S between the reinforcement plate 5 and the projection 13. If, in the event of an accident, the lock holder 2 is displaced with excessive force, the reinforcement plate 5 can bear against the projection 13 for support. 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 case 3, made from a stamped and bent metal part, stabilizes the locking mechanism 4 via the metal axes of the locking mechanism 4, 6.In addition, the reinforcement plate 5 connects at least the rotational axes of the rotary latch and a pawl, in particular the pre-locking pawl, thus providing a stabilized motor vehicle lock. This motor vehicle lock, stabilized by the reinforcement plate 5, can now be additionally supported in conjunction with the lock holder 2, specifically in that the reinforcement plate rests against the projection 13 of the lock holder 2.

[0041] It should be noted again that the design of the lock holder 2 is shown merely as an example. The design of the lock holder in the form of a stamped and bent part 9 with a locking bolt 8 can also be formed from a different combination. What is essential to the invention here is that an area of ​​the lock holder 2, and in particular the center piece 12 and / or the projection 13, engages with the reinforcement plate 5 for the locking mechanism 4 in the event of a displacement of the lock holder 2. Likewise, and as shown in the exemplary embodiment, the locking bolt 8 can be provided with a plastic sheath 14 to minimize noise. Figure 2 shows, by way of example, the design of a reinforcement plate 5 and the interaction between the reinforcement plate 5 and the lock holder 2.Figure 2 shows a top view of the lock holder 2 and the locking mechanism 4, also showing the main locking position of the locking mechanism 4. The rotary latch 6 encloses the locking bolt 8 with its load arm 7 and is held in the main locking position by a pawl 15.

[0042] As can be clearly seen, the reinforcement plate 5 stabilizes the locking mechanism 4, with the pivot axes 16, 17 of the locking mechanism 4 being held by the reinforcement plate. The reinforcement plate 5 is designed such that a projection 13 on the lock holder 2 projects beyond the reinforcement plate 5, so that an overlap S is established between the projection 13 and the reinforcement plate 5. If the lock holder 2 is now moved relative to the motor vehicle lock, the reinforcement plate 5 engages with the projection 13 of the lock holder and stabilizes the motor vehicle lock 1. This leads to an increase in strength and a higher load-bearing capacity of the motor vehicle door lock.Even if we are talking about a motor vehicle door lock here, the use is not limited to this, but rather refers generally to a motor vehicle lock which, in interaction between a locking mechanism 4 and a lock holder 2, holds a component movably arranged on the motor vehicle.

[0043] Figure 3 again shows a plan view of a locking mechanism 4 and a lock holder 18. Identical components are provided with the same reference numerals. The main locking position of the locking mechanism 4 is shown, with the load arm 7 engaging around the locking bolt 8 and being held in the main locking position by the pawl 15. A key difference from the aforementioned embodiment is the design of the projection 19, which extends at least partially circumferentially around the locking bolt 8. In this exemplary embodiment, the projection has two extensions 20, 21, which also extend circumferentially beyond the reinforcing plate 5.As in the exemplary embodiment according to Figure 2, in Figure 3 the projection 19 is arranged in a plane with the central piece 22, so that the projection 19 extends essentially parallel to the reinforcement plate 5, the locking mechanism 4 and the lock case 3 in the motor vehicle lock 1. In the exemplary embodiment shown, the projection 19 is designed as a component of the central piece 22 and thus as a component of the central piece, the connecting piece and the lock holder plate 24. Through the combination and in particular the projection 13, 19 between the reinforcement plate 5 and the cover S, an additional stabilizing component can be introduced into the motor vehicle lock 1, which leads overall to increased tensile strength under alternating voltage.

[0044] List of reference symbols

[0045] 1 motor vehicle door lock

[0046] 2, 18 lock holders

[0047] 3 lock cases

[0048] 4 locking mechanisms

[0049] 5 Reinforcement plate

[0050] 6 rotary latch

[0051] 7 Load arm

[0052] 8 locking bolts

[0053] 9 Stamped and bent part

[0054] 10, 24 Lock holder plate

[0055] 11, 23 connecting piece

[0056] 12, 22 middle section

[0057] 13, 19 Overhang

[0058] 14 Plastic coating

[0059] 15 pawl

[0060] 16, 17 axis

[0061] 20, 21 Extension

[0062] S Coverage

[0063] F Force

Claims

Patent claims 1. Motor vehicle door lock (1), comprising a motor vehicle lock with a locking mechanism (4) consisting of a rotary latch (6) and at least one pawl (15), wherein the rotary latch (6) can be locked in at least one locking position by means of the pawl (15), a reinforcing plate (5), wherein at least the axes (16, 17) of the rotary latch (6) and at least one pawl (15) can be connected by means of the reinforcing plate (5), and a lock holder (2, 18), wherein the lock holder (2, 18) is encompassed by the rotary latch (6) at least in one locking position, characterized in that the lock holder (2, 18) can be brought into an engagement position with the reinforcing plate (5).

2. Motor vehicle door lock (1) according to claim 1, characterized in that the reinforcing plate (5) can be brought into an engagement position between the rotary latch (6) and a projection (13, 19) and / or a center piece (12, 22) of the lock holder (2, 18) in at least one latching position of the locking mechanism (4).

3. Motor vehicle door lock (1) according to one of claims 1 or 2, characterized in that the lock holder (2, 18) has a projection (13, 19) extending at least partially beyond a locking bolt (8).

4. Motor vehicle door lock (1) according to one of claims 1 to 3, characterized in that a positive overlap (S) between the lock holder (2, 18) and the reinforcing plate (5) can be achieved, in particular in at least one locking position of the locking mechanism (4).

5. Motor vehicle door lock (1) according to one of claims 1 to 4, characterized in that the lock holder (2, 18) has a projection (13, 19), in particular a projection (13, 19) in the direction of a longitudinal extension of the central piece (12, 22) of the lock holder (2, 18).

6. Motor vehicle door lock (1) according to one of claims 1 to 5, characterized in that the lock holder (2, 18) has a projection (13, 19) in a plane of the central piece (12, 22) of the lock holder (2, 18), wherein the projection (13, 19) extends substantially in a direction transverse to a central axis of the central piece (12, 22).

7. Motor vehicle door lock (1) according to one of claims 1 to 6, characterized in that the projection (13, 19) extends in more than one direction in a plane of the central piece (12, 22).

8. Motor vehicle door lock (1) according to one of claims 1 to 7, characterized in that the reinforcing plate (5) can be brought into an engagement position with the lock holder (2, 18) at least on one side.

9. Motor vehicle door lock (1) according to one of claims 1 to 8, characterized in that the reinforcing plate (5) is designed as a one-piece metallic stamped and bent part.

10. Method for locking a movable component attached to a motor vehicle, in particular a side door, with a motor vehicle door lock (1) according to one of the preceding claims, in which, when the component is closed, partly and reaching at least one locking position of the motor vehicle lock, a reinforcing plate (5) is moved at least partially into an engagement position with a lock holder (2, 18).

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