WO2016192716A1

WO2016192716A1 - Motor vehicle lock

Info

Publication number: WO2016192716A1
Application number: PCT/DE2016/100252
Authority: WO
Inventors: Thomas Badewicz
Original assignee: Kiekert Ag
Priority date: 2015-06-02
Filing date: 2016-05-31
Publication date: 2016-12-08
Also published as: DE102015108737A1

Abstract

The invention relates to a motor vehicle lock (20) comprising a locking mechanism (24), particularly consisting of a rotary latch (26), at least one pawl (25), a lock case (5, 23) and a reinforcing element (1, 21), wherein a bearing of said locking mechanism (24) can be supported by the reinforcing element (1, 21), and said reinforcing element (1, 21) forms at least one part of the locking mechanism part bearing, particularly the bearing pin (10, 11, 27, 28).

Description

Motor vehicle lock

description

The invention relates to a motor vehicle lock comprising a locking mechanism, in particular from a rotary latch and at least one pawl, a lock case and a reinforcing element, wherein a bearing of the locking mechanism by means of the reinforcing element is sustainable.

Today motor vehicle locks generally have a locking mechanism consisting of a catch and a pawl. The locking parts, such as rotary latch and pawl, rotatably received at least in a lock case and a bearing pin. The locking mechanism, which is usually arranged in the motor vehicle door, a hood, a tailgate or, for example, a sliding door, cooperates with a lock holder on the bodywork of the motor vehicle. When the vehicle lock is closed, the lock holder interacts with the rotary latch such that the rotary latch is pivoted and held or locked in its closed position by means of the locking pawl in the closed position. A provided with a locking car door lock is known from DE 20 2012 103 608 U1. Rotary latch and pawl are mounted in a lock plate via a bearing pin and interact with a lock holder, which is engageable via an inlet slot with the catch. The locking parts catch and pawl are here designed as metallic components and mounted on a bearing sleeve on the bearing pin. The bearing sleeve is part of the motor vehicle lock housing and may for example be integrally formed with the housing. The bearing sleeve has a supporting, sealing and friction-reducing between the locking part and the bearing pin.

From DE 10 2004 001 988 A1 a further storage for locking parts of a motor vehicle door lock has become known. The blocked parts bearings are made of plastic and act with a metallic carrier plate, in particular especially the lock case, together. Preferably, the lock case is provided with a Kunststoffumspritzung, which forms the bearing pin. From the lock case flat tabs are punched out to support the bearing pin, which were angled perpendicularly from the support plate, wherein the tabs form metallic reinforcing elements for the bearing pin.

Another motor vehicle door lock with a bearing sleeve for receiving a bearing pin for the locking parts is known from DE 10 2012 108 882 A1. The storage sleeve formed for the storage of the locking parts, for example, integrally with the housing is preferably made of plastic. The bearing sleeve can be equipped with an embedded reinforcement if required and inside. How this reinforcement is formed or in what form the embedded reinforcement supports the bearing sleeve, but the publication can not be removed.

In particular, in cases where, for example based on requirements of the automotive industry, the locking parts must be able to absorb high forces, the storage of the locking mechanism can be equipped with a reinforcing element. A motor vehicle door lock equipped with a reinforcing element is known, for example, from DE 20 2012 010 242 U1. The motor vehicle door lock has a locking mechanism consisting of a rotary latch and a pawl, wherein the bearing pins of the pawl and the rotary latch are held next to the storage in the lock case in a reinforcing element. That is, there is a reinforcing member which connect the bearing bolts of the rotary latch and the pawl. By connecting the bearing pin of the locking parts, the bearing pins are additionally supported. Thus, the bearing pin or bearing pins of the locking parts are added on the one hand in the lock case and on the other hand in the reinforcing element. The reinforcing element supports the storage of the locking mechanism, so that maximum tensile forces can be absorbed by the locking mechanism. A problem that arises in the further development of locking devices of motor vehicles, is that with constantly increasing demands on the motor vehicle locks and locking devices, the number of components to be reduced in order to reduce the weight of the motor vehicle lock at the same time. It should on the one hand facilitates the assembly and on the other hand a high level of functional reliability can be ensured.

The object of the invention is to provide an improved motor vehicle lock for a motor vehicle. In addition, it is an object of the invention to meet the increased demands on the motor vehicle locks while reducing the number of components required. In addition to the requirement of absorbing high loads in the motor vehicle lock and reducing the number of components must always be ensured easy mounting. In addition, it is an object of the invention to provide a structurally simple and inexpensive way to reinforce the motor vehicle lock.

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. It should be noted that the embodiments described below are not restrictive, but rather any variation possibilities of the features described in the description and the subclaims are possible. According to claim 1, the object of the invention is achieved in that a motor vehicle lock is provided, comprising a locking mechanism, in particular of a rotary latch and at least one pawl, a lock case and a reinforcing element, wherein a storage of GeSS by means of the reinforcing member is sustainable and wherein the reinforcing element forms at least a part of the locking part bearing, in particular of the bearing bolt. Due to the construction of the motor vehicle lock according to the invention, it is now possible to provide a motor vehicle lock. set aside, on the one hand has a reinforcing element and on the other hand brings a supporting effect in the motor vehicle lock with a smaller number of components. The reinforcing element forms at least part of the bearing of at least one locking part, so that a bearing for the locking part can be formed, wherein the bearing undergoes a supporting effect by the reinforcing element. The reinforcing element can be stored, for example, on the edge of a lock case and thus form a support for the locking part. The locking part is thus mounted on both sides and undergoes an additional supporting effect in that the reinforcing element forms at least part of the bearing of the locking part.

If, in the context of the invention, a motor vehicle lock is used, this includes all locks used in the motor vehicle, which are contained in, for example, a hood, a flap, a side door and / or a shelf, and which are provided with a locking mechanism. A locking mechanism has a catch and at least one pawl. In addition to the use of a pawl and locking with more than one pawl of the invention are mitumfasst. The locking mechanism can have a pre-locking position and a main locking position.

In order to meet the requirements, in particular of, for example, motor vehicle side doors, the motor vehicle lock on a lock case. The lock case is usually made of a metallic sheet metal and supports and / or supports the bearing pin of, for example, rotatable or pivotally incorporated in the motor vehicle lock functional elements. A functional element may be, for example, an internal or external operating lever. The lock case is preferably made of iron and preferably made of sheet metal. For storage of the locking mechanism, the motor vehicle lock on a reinforcing element with which the locking parts are sustainable. The support of the locking parts is due to the high demands that are placed on the motor vehicle lock, so that a functional safety of the motor vehicle lock can be guaranteed even in extreme situations, such as an accident. In particular, in case of accident, the locking mechanism is exposed to very high loads, condition a stable storage of the locking parts in the motor vehicle lock. In this case, the reinforcing element can be arranged, for example, directly between the lock case and the bearing point of the ratchet part or connect the ratchet parts directly to each other or be connected in addition to the connection of the roped part warehouse in addition to the lock case.

According to the invention, the reinforcing element forms part of the locking part bearing and in particular directly the bearing pin. In this case, the reinforcing element is formed in one embodiment as a reinforcing plate. The formation of the reinforcing element as a reinforcing plate is particularly advantageous because reinforcing plates are easily malleable and thus cause low manufacturing costs. Preferably, the reinforcing sheet is made of iron and preferably made of a steel material. However, it is also conceivable to manufacture the reinforcing element, for example, from an aluminum material and in particular from a high-strength aluminum material.

In one embodiment of the invention, there is an advantage if the reinforcing element has a plastic casing, at least in the region of the locked part bearing. If the reinforcing element has a plastic casing in the region of a bearing of a locking part, then the plastic casing can directly form the bearing pin. On the bearing pin the locking part is directly storable. Additional means for supporting the locking parts can thus be dispensed with. The reinforcing element itself forms in this embodiment at least partially a part of the bearing of the locking part. In a further embodiment, the plastic casing forms a bearing for at least one locking part. In this embodiment, can be dispensed with a bearing pin, since the reinforcing element and in particular the plastic sheath forms a bearing for, for example, the rotary latch. The plastic coating can be attached, for example, by means of a plastic injection molding on the reinforcing element, so that a non-detachable connection between the reinforcing element and plastic sheath is formed.

By forming a bearing for the locking part, the number of required components for the motor vehicle is reduced while facilitating mounting. The reinforcing element thus forms on the one hand a support and on the other hand an assembly aid.

If the reinforcing element extends through at least one locking part and the lock case, and if the reinforcing element can be connected to the lock case, this results in a further embodiment of the invention. Supports the reinforcing element at least one locking part such as the rotary latch and reinforces this storage by a connection with, for example, the lock case and / or another locking part, such as the pawl and extends the reinforcing plate completely through the locking member and is connectable to the lock case, so a very stable storage for the one or more locking parts is provided.

If, for example, the reinforcing element is a reinforcing plate, and extends from a lock case through a first locking part and connects the first locking part with a second locking part, wherein the reinforcing plate also extends through the second locking part and at its end turn connected to the lock case, so not only provides a reinforcing element, but it also creates a storage for the locking parts, in which the reinforcing element additionally has the property of a leadership of the locking parts. In this case, guidance can mean, on the one hand, that the locking parts can be brought into engagement with one another in a positionally correct manner and, at the same time, the reinforcing element can act as a bearing axis for the locking parts. In addition, the assembly of the motor vehicle lock can be facilitated by means of such a construction. If the receptacles or bearing mandrels for the locking parts are mounted on the reinforcing element or molded or molded, this results in a single component for the reinforcing element and the bearing mandrels of the at least two or more locking parts.

If the plastic casing has a shoulder and if a guide for the locking mechanism can be formed by means of the shoulder, this results in a further advantageous embodiment of the invention. The reinforcing element may be provided with a plastic sheath having a shoulder. The paragraph in the plastic element can be designed such that there is a storage and mounting aid for the or the locking parts. Thus, it is possible to dispense with an additional bearing sleeve and / or a plastic coating of the locking parts in the region of the storage of the locking parts. By the at least one shoulder in the plastic sheath of the reinforcing element, on the one hand a better seal between the locking parts and the bearing mandrel can be achieved and on the other hand, a minimization of the friction between the bearing pin and the locking parts can be achieved. The shoulder can serve as a contact surface or guide for the locking parts and / or at the same time be designed as an insertion aid of the reinforcing element in the lock case. The plastic sheath can thus serve as a guide aid and / or assembly securing insofar as a corresponding design of the shoulder or heels is provided in the plastic sheath which correspond with, for example, an opening in the lock case. In a further advantageous embodiment, the reinforcing element has a projection, wherein in particular the projection forms a guide for the locking mechanism. A projection, that is a broadening of the reinforcing plate in such a way that, for example, a bearing surface is formed for a locking part, on the one hand can cause a stable guidance of the locking part and on the other hand serve to provide large forces between the locking parts and the reinforcing member. A projection can be provided on one side and / or on both sides on a reinforcing element designed, for example, as a metal strip. Advantageously, a conical broadening of the sheet metal strip may be provided in order to be able to introduce the force lines optimally into the reinforcing element, for example. In this case, the projection can be designed such that the projection rests directly on the locking part and / or reach into the region of the contact surface of a locking part, but be encased with a plastic, so that optimum material combinations can be achieved with respect to a friction.

A projection can serve, for example, to serve as a contact surface for a locking part, but can also serve to align the reinforcing element with respect to the lock case and to optimize a power transmission between the reinforcing element and the lock case.

In a further advantageous embodiment of the invention, a lock housing is provided, wherein the reinforcing element extends through the lock housing. A motor vehicle lock is provided for sealing and noise optimization with a housing, wherein the housing may also include leading, supporting or receiving functions. If, for example, extensions in the form of bearing pins are formed on the lock housing, then the reinforcement element can extend into the lock housing and reinforce the bearing pins or bolts for receiving the locking parts. In this case, the reinforcing element directly into the lock housing be injected into or be inserted for example after the manufacture of the lock housing in corresponding openings of the lock housing. If the reinforcing element is received at least in some areas in the lock housing, this forms a further advantageous embodiment of the invention.

If the reinforcing element is accommodated in the lock housing or completely enclosed by the plastic forming the lock housing, several advantages result immediately. On the one hand, the assembly is facilitated because it can be worked with a smaller number of components and in addition, the reinforcing element can additionally stabilize the lock housing, so that, for example, reinforcing ribs in the plastic housing can be omitted. Moreover, if the bearing bolts around the stiffening element are formed directly in the lock housing, then the number of components required for mounting the locking parts can be further reduced. This allows an extremely low proportion of components and at the same time promotes easy mounting of the motor vehicle lock.

A further advantageous embodiment of the invention is achieved when the reinforcing element extends through slot-shaped openings in the lock case and is connectable by means of a forming with the lock case. The reinforcing element may advantageously be formed from a sheet metal strip. Sheet metal strips can be produced extremely inexpensively and with a favorable selection of, for example, a ferrous material, very high supporting forces can be realized thereby. A metal strip may have a rectangular cross-sectional shape, which in turn can be inserted into a rectangular or slot-shaped opening of the lock case. Is spoken in the context of the invention of slot-shaped openings, so here are openings that correspond to a cross-sectional shape of a metal strip. Depending on the width of the sheet metal strip and size of the openings in the Lock case can then be formed at the same time a mounting fuse, namely in the case in which the two ends of the reinforcing element have different widths, so that a mis-mounting can be prevented. In addition to a different width of the metal strip at the ends of course, different geometric shapes and / or thicknesses of the sheet metal strip can be formed, which are then inserted into the lock case. After a joining of the reinforcing element in the lock case can then take place in an advantageous manner, forming the reinforcing element, so that the connecting element is ultimately inextricably linked to the lock case. An inseparable connection, which can be achieved for example by means of a forming, then ensures a uniform over the life of the motor vehicle lock leadership or support of the locking mechanism.

If the reinforcing element extends through the lock case, then, for example, a protrusion on the reinforcing element can serve as a stop on the lock case. It is according to the invention but also conceivable that a plastic casing may be provided on the reinforcing element, which then serves as a stop for the reinforcing element on the lock case.

The invention will be explained in more detail with reference to the accompanying drawings with reference to preferred embodiments. However, it is the principle that the embodiments do not limit the invention, but represent only advantageous embodiments. The illustrated features may be performed individually or in combination with other features of the specification as well as the claims individually or in combination. Show it: 1 shows a section through a plastic casing of a reinforcing element, the plastic shells forming bearing bolts for a locking mechanism, Figure 2 shows a section through the plastic sheath according to the

Line II-II of Figure 1,

Figure 3 shows a further embodiment of the invention as a principle

Section through a lock housing and a lock case with an indicated locking mechanism and the position of the reinforcing element, and

4 shows a view of the motor vehicle lock according to FIG. 3 from the direction of the arrow IV.

FIG. 1 shows a side view of a reinforcing element 1 with a plastic casing 2, 3, wherein a first end 4 of the reinforcing element 1 extends through a lock case 5 which is shown only in sections. The plastic sheaths 2, 3 are molded onto the reinforcing element 1 in this embodiment and each have a shoulder 6, 7. The tapered portions 8, 9 of the plastic casing 2, 3 are cylindrical and serve as a bearing pin 10, 1 1 for receiving locking parts. The reinforcing element 1 is formed as a sheet-metal strip, wherein a respective right-angled fold 12, 13 is provided, wherein the folded extensions 14, 15 of the reinforcing element 1 extend through the plastic casing 2, 3 and the lock case 5.

As can be clearly seen in FIG. 1, the tapered region 8, 9 of the plastic casing 2, 3 serves as a contact surface on the lock case 5. In addition, the tapered region 8, 9 serves as a bearing pin 10, 11 for two non-illustrated locking parts which cooperate with one another. FIG. 2 shows a section through the plastic casing 2 along the extension 14 of the reinforcing element 1. As can be clearly seen from FIG. 2, the reinforcing strip has a width B which extends through the region of the bearing pin 10 and supports the tapered region 8 of the plastic casing 2. In addition, in the sheet metal strip, a projection 16, 17 is formed, which has a greater width than the rest of the reinforcing strip 1. The projection 16, 17 extends so far beyond the tapered region 8, that a support surface 18 is formed, against which a locking part can be applied. Thus, the reinforcing element 1 not only serves to support and stabilize the locking parts, but also serves to provide a stable storage for the locking part. In the area of the support surface 18 can therefore be expected with a very low wear by a continuous load. The projection 16, 17 is conical in this embodiment, which is a good line of force guidance in the absorption of forces from the locking into the reinforcing element 1 benefits.

The first end 4 of the extension 14 of the reinforcing element passes through the lock case 5 and can be subsequently reshaped according to a state mounted as shown, to establish a permanent connection between the reinforcing element 1 and the lock case 5.

The plastic casing 2, 3 may also be cylindrical above the tapered region 8, 9 in the region of the projection 16, 17. The cylindrical portion 19 additionally serves as a storage for the locking part.

FIG. 3 shows a side view as a basic section through a motor vehicle lock 20. Shown is a reinforcing element 21, a lock housing 22, a lock case 23 and a locking mechanism 24. The locking mechanism 24 includes a pawl 25 and a rotary latch 26. The rotary latch and pawl are mounted on bearing pins 27, 28 of the housing 22. The locking 24 or the pawl 25 and the rotary latch 26 act together as known. The basic structure of the reinforcing element 21 in interaction with the bearing bolts 27, 28 and the lock case 23 correspond to the embodiment according to FIGS. 1 and 2. In addition, in the exemplary embodiment according to FIG. 3, the reinforcing element 21 passes through the lock housing 22. In this case, the reinforcing element 21 be inserted later in the lock housing or likewise be injection-molded as well as the bearing pins 27, 28 with the plastic of the lock housing 22 so that a one-piece shape of reinforcing element 21, lock housing 22 and Lagerbol- zen 27, 28 results.

The lock case 23 engages with an extension 29 in some areas the lock housing, as is well known and customary. Through the lock case 23 pass through the ends 30, 31 of the reinforcing element 21st Thus, an extremely stable storage for the locking mechanism 24 is achieved while facilitating the assembly.

FIG. 4 shows a view of the motor vehicle lock 20 from the perspective of the arrow IV from FIG. Evident is the lock case 23 and the lock housing 22. In addition, openings 32, 33 are provided in the lock case 23, through which pass the ends 30, 31 of the reinforcing element 21. Shown dashed lines are the bearing pins 27, 28, which abut against the lock case 23 in this embodiment.

LIST OF REFERENCE NUMBERS

1 reinforcing element

2, 3 plastic coating

4 first end of the reinforcing element

5 lock case

6, 7 paragraph

8, 9 tapered area

10, 1 1 bearing pin

12, 13 fold

14, 15 extensions

16, 17 cantilever

18 support surface

19 cylindrical area

20 motor vehicle lock

21 reinforcing element

22 lock housing

23 lock case

24 locking

25 pawl

26 catch

27, 28 bearing bolts

29 extension

30 end of the reinforcing element 32, 33 openings

B Width of the reinforcing strip

Claims

claims

1 . Motor vehicle lock (20) comprising a locking mechanism (24), in particular a rotary latch (26) and at least one pawl (25), a lock case (5, 23) and a reinforcing element (1, 21), wherein a mounting of the locking mechanism (24) by means of a reinforcing element (1, 21) is sustainable, characterized in that the reinforcing element (1, 21) at least part of the locking part bearing, in particular of the bearing pin (10, 1 1, 27, 28), forms.

2. Motor vehicle lock (20) according to claim 1, characterized in that the reinforcing element (1, 21) is designed as a reinforcing plate. 3. Motor vehicle lock (20) according to claim 1 or 2, characterized in that the reinforcing element (1, 21) at least in the region of the locking part bearing a plastic casing (2,

3).

4. Motor vehicle lock according to claim 3, characterized in that the plastic casing (2, 3) forms a bearing point for at least one locking part (25, 26).

5. motor vehicle lock (20) according to one of claims 1 to 4, characterized in that the reinforcing element (1, 21) by at least one locking part (25, 26) and the lock case (5, 23) passes through and with the lock case (5, 23) is connectable.

6. motor vehicle lock (20) according to one of claims 3 to 5, characterized in that the plastic casing (2, 3) has a shoulder (6, 7) and by means of the paragraph (6, 7) a guide for the locking mechanism (24 ) is bildbar.

7. motor vehicle lock (20) according to one of claims 1 to 6, characterized in that the reinforcing element (1, 21) has a projection (16, 17) and that in particular the projection (16, 17) has a guide for the locking mechanism (24 ).

8. Motor vehicle lock (20) according to one of claims 1 to 7, characterized in that a lock housing (22) is provided and that the reinforcing element (1, 21) extends through the lock housing (22).

9. motor vehicle lock (20) according to one of claims 1 to 8, characterized in that the reinforcing element (1, 21) is received at least partially in the lock housing (22).

10. motor vehicle lock according to one of claims 1 to 9, characterized in that the reinforcing element (1, 21) through openings (32, 33) in the lock case (22) passes and by means of a forming with the lock case (5, 23) is connectable.