WO2020083424A1

WO2020083424A1 - Lock catch for a motor vehicle lock

Info

Publication number: WO2020083424A1
Application number: PCT/DE2019/100830
Authority: WO
Inventors: Michael Döring
Original assignee: Kiekert Ag
Priority date: 2018-10-25
Filing date: 2019-09-20
Publication date: 2020-04-30
Also published as: DE102018126640A1

Abstract

The invention relates to a lock catch (10) for a motor vehicle lock (100), comprising a lock catch plate (11) and at least one lock catch bracket (12), which has a central piece (13), a locking bolt (15), a connecting bolt (14) and a lock holder bracket opening (16) formed by said lock catch bracket and included by a rotary latch (20) of a motor vehicle lock (100), wherein at least the central piece (13) has a surface structure (30), wherein at least sections of the surface structure (30) can be operatively connected to a lock plate (110) of the motor vehicle lock (100) in the event of a crash.

Description

Lock holder for a motor vehicle lock

description

The present invention relates to the field of motor vehicle locking systems and relates to a lock holder for a motor vehicle lock according to the preamble of independent claim 1.

Nowadays, lock holders for motor vehicle door locks in particular come in various variations, which are used in a motor vehicle locking system. Components, which are often exposed to the highest loads, are used primarily in motor vehicle locking systems. Such loads can occur, for example, in the event of an accident, where the respective locking system must securely lock the flap or door of a motor vehicle. In this context, so-called lock holders are exposed to very special loads.

DE 10 2008 037 213 A1 discloses a lock holder for a motor vehicle lock having at least one shackle section and an opening, the at least one shackle section having a surface structure at least towards the opening on the contact surface of the rotary latch, whereby better contact between the rotary latch and lock holder can be achieved is. A lock holder is also known from DE 10 2010 009 141 A1, which has a surface structure for minimizing the noise in the contact area of the rotary latch and lock holder.

One problem with conventional lock holders is that in the event of a crash, the deformation of the lock holder and / or lock plate cannot be absorbed sufficiently by the contacting of the rotary latch and lock holder, which can endanger the safety of the vehicle.

There is therefore a need for a lock holder which increases the safety of the vehicle, particularly in the event of a crash. The present invention is therefore based on the technical problem of at least partially eliminating the disadvantages known from the prior art. In particular, it is the object of the invention to provide a lock holder and a motor vehicle which in the event of a crash at least partially absorbs the deformation of the lock holder and / or the lock plate.

The above object is achieved by a lock holder with the features of claim 1. Further features, details, advantageous developments and improvements of the invention result from the subclaims, the description and the drawings. The features described in the patent claims, the description, the drawings and the subclaims can be combined or varied with one another in any desired, technologically sensible manner and show further refinements of the invention. It is pointed out that the exemplary embodiments described below are not restrictive to explain the invention.

According to the invention, the lock holder has a lock holder plate and at least one lock holder bracket, which has a center piece, a locking bolt, a connecting bolt and a lock holder bracket opening formed by it and which can be enclosed by a rotary latch of a motor vehicle lock.

The lock holder according to the invention further comprises a surface structure at least on its middle piece, the surface structure in the event of a crash being able to be at least partially brought into operative connection with a lock plate of the motor vehicle.

Due to the surface structure on the center piece of the lock holder, which is designed such that when the lock holder and / or the lock plate is deformed, an interaction of the lock holder and lock plate can be achieved, there is the advantage that the tearing forces can be increased. The lock plate can be supported at least in sections on the surface structure of the lock holder, whereby an increased power transmission is achieved. In contrast to the prior art, where the lock plate would slip / slide on the lock holder, the design according to the invention enables increased power transmission between the lock plate and lock holder. This increase in force compared to the prior art is achieved by the surface structure according to the invention. The increase in force is achieved due to a higher friction coefficient of the lock holder / surface structure and lock plate. It is also conceivable that, in addition, wedging or hooking between the lock holder / surface structure and lock plate can be achieved at least temporarily.

If, in the context of the invention, a lock for a moving part is referred to as a motor vehicle, then at least side door locks, hinged doors, swinging doors, rear doors, tailgate locks and hood locks or bonnet locks are to be understood. All of these fall under the generic term of motor vehicle lock and in connection with the lock holder also under the generic term of motor vehicle locking system.

The surface structure according to the invention can primarily also be free of depressions. This means that only surveys, but no in-depths, are available. Flat sections are preferably arranged between the individual elevations. The elevations have the advantage that the friction is increased, in particular a hooking or wedging of the lock holder and lock plate can be achieved. Elevations are to be understood as meaning convex sections of the surface structure which extend from the center piece. The convex design extends in the opposite direction to the lock bracket opening. Adverse notch effects on the lock holder can thus be avoided.

In the context of the invention, the surface structure and thus the middle piece of the lock holder can have at least one depression, in particular additionally at least one elevation. A deepening here means a concave formation in the middle part of the lock holder. This can also be understood as an indentation or recess. A recess has the advantage that the lock plate is at least partially in the event of a deformation in the event of a crash Deepening can get caught. Furthermore, it is conceivable that at least one survey is also available. As a result, the frictional resistance that can be achieved is increased and the lock plate can additionally stop at the at least one elevation. It is particularly advantageous if a multiplicity / plurality of depressions and / or elevations is present. In particular if these are arranged alternately / successively on the center piece of the lock holder.

The at least one elevation and / or the at least one depression can advantageously be designed in the direction of the longitudinal extent of the lock holder bracket. As a result, the friction or the power transmission, in particular in the event of jamming or canting, can be increased and the tensile strength can thus be improved. In the direction of the longitudinal extent of the lock bracket, this means that the elevations or depressions are formed in the circumferential direction of the lock bracket.

In the event of a crash, the elevations and / or the depressions can contact an inlet edge of the lock plate, in particular the inlet edge of the lock plate can be supported at least temporarily on the elevations and / or the depressions. Tilting of the lock plate and lock holder can thus be achieved, the leading edge of the lock plate interacting with the elevation or the recess at least in sections, in particular engaging in a form-fitting manner.

The elevations and / or depressions can advantageously be arranged at a distance from one another. It is particularly advantageous if the distance between the elevations and / or the depressions corresponds at least to the material thickness / thickness of the leading edge. In this way, a secure interlocking can be further increased.

In the context of the invention, the surface structure can preferably have a length between approximately 5 mm and approximately 50 mm, preferably between approximately 12.5 mm and approximately 25 mm in the direction of the longitudinal extension of the lock holder bracket. It is also conceivable that the surface structure, in particular the elevation and / or the depression, is formed by means of thermal deformation, in particular by means of a laser beam. Because the surface to be machined is structured according to the invention by means of thermal deformation, in particular by means of a laser beam, in such a way that elevations but no depressions are formed in relation to the level of the surface of the lock holder, a defined geometry can be generated on the surface with little expenditure of time can, without the risk that the life of the lock holder is reduced. In addition, it is conceivable to form the surface structure in the lock holder by means of cold forming.

The surveys set a defined roughness to increase the static friction. According to the invention, depressions which are not functionally relevant and which can reduce the service life of the component are increased to increase the static friction.

The surface structure can advantageously be essentially one

Have gear geometry or a shaft geometry. The elevations and / or the depressions can advantageously have a height (h) between approximately 0.01 mm and approximately 5 mm, preferably between approximately 0.1 mm and approximately 3 mm, particularly preferably between approximately 0.5 mm and approximately 2 mm . In addition, it is conceivable that the surface structure extends over the entire length of the center piece of the lock holder.

It is furthermore conceivable that the surface structure, at least in sections, in particular the elevation and / or depression, is geometrically complementary to an inlet edge of the lock plate.

In the context of the invention, the center piece in the area of the surface structure, in particular the elevation or / the depression, can additionally have a greater roughness than the non-structured areas. According to a further aspect of the invention, a motor vehicle with at least one door, flap, tailgate and / or hood and at least one motor vehicle lock assigned to the door, flap, tailgate or hood and a lock holder according to the invention is claimed. A motor vehicle according to the invention thus has the same advantages as have been described in detail with reference to a lock holder according to the invention.

Further measures improving the invention result from the following description of some exemplary embodiments of the invention, which are shown schematically in the figures. It should be noted that the figures are only descriptive and are not intended to limit the invention in any way. Embodiments are thus also to be regarded and encompassed by the invention, which are not explicitly shown or explained in the figures, but which emerge from the explanations explained and can be generated by separate combinations of features. In the figures, identical reference symbols designate identical or functionally identical components, unless stated otherwise.

Show it:

1A a motor vehicle lock and a possible embodiment of a lock holder according to the invention in the normal state,

1B shows a motor vehicle lock and a possible embodiment of a lock holder according to the invention in the event of a crash,

2A shows a further possible embodiment of a device according to the invention

Lock holder,

2B shows another possible embodiment of an inventive device

3 and another possible embodiment of the surface structure of a lock holder according to the invention.

FIG. 1A shows a possible embodiment of a motor vehicle lock 100 according to the invention with a lock plate 110, a ratchet 20 and a lock holder 10 according to the invention can be brought into contact with at least one elevation 31 of the surface structure 30 of the lock holder 10. In FIG. 1A, the lock holder 10 is operatively connected to the locking mechanism 20, in particular the rotary latch 21, i. H. the

The rotary latch encloses the lock holder at least in sections and holds it in the locked position. The lock holder 10 has the surface structure 30, the surface structure 30 in the exemplary embodiment shown having elevations 31 which are arranged essentially in a wedge shape on the middle piece 13 of the lock holder bracket 12. The elevations 31 according to the invention are shown spaced apart from the leading edge 1111, so that the motor vehicle lock 100 shown is in the normal case, that is not in the event of a crash. The normal functionality of the locking mechanism and the lock holder is given, so that the Lock holder can be guided out of the inlet area of the lock plate 1 10 after unlocking the locking mechanism 20.

It can thus be seen that, in the state of the motor vehicle lock 100 shown, the surface structure 30, in particular the elevations 31, have no connection or contact with the leading edge 11 of the lock plate 110.

1B shows the embodiment of the motor vehicle lock 100 from FIG. 1A in the event of a crash. The lock plate 110 / the motor vehicle lock 100 deforms or moves in such a way that the leading edge 11 1 of the lock plate 110 comes into contact with the elevation 31 of the surface structure 30 from the lock holder 10. The locking mechanism is in the locked position, so that here too the catch 21 engages around the lock holder 10 at least in sections and thus holds the lock holder in the locked position of the motor vehicle lock 100. The surface structure 30 in FIG. 1B has elevations 31 which are arranged on the lock holder bracket 12 in an essentially wedge-shaped configuration. In addition, a blocking lever 23, a pawl 22 and the rotary latch 21 of the locking mechanism are shown. The fact that the lock plate 1 10 of the motor vehicle lock 100 is deformed by the energy input as a result of an accident in such a way that it deforms in the direction of the lock holder 10, in particular in the direction of the lock holder bracket 12, gives the surface structure 30 in FIG. 1B, in particular that Elevations, 31 in contact with the leading edge 1 1 1 of the lock plate 110. A kind of tilting or contacting of the elevation 31 with the leading edge 1 1 1 can result in the tearing forces of the motor vehicle lock 100 being increased. For this purpose, elevation 31 contacted the leading edge 11 of the lock plate 110 at least in sections, so that the elevation 31 acts like a folded element. FIG. 2A shows a further possible embodiment of a lock holder 10 according to the invention, the lock holder 10 having a surface structure 30 with a multiplicity / plurality of elevations 31. The elevations 31 are arranged on the middle piece 13 of the lock holder bracket 12 from the lock holder 10. A distance is provided between the elevations 31, which separates the elevations 31 from one another. The elevations 31 are also essentially wedge-shaped in FIG. 2A. The elevations 31 have a height h, the overall surface structure having a length L which extends in the longitudinal extent x of the lock holder 10, in particular the lock holder bracket 12.

In addition, the lock holder 10 has a lock holder plate 11, a lock holder bracket 12, a center piece 13, a locking bolt 15 and a connecting bolt 14 and a lock holder bracket opening 16.

The elevations 31 are essentially formed as convex elevations from the surface of the lock holder bracket, in particular the middle piece 13 of the lock holder 10. The surface structure 30 and thus the lock holder 10 in the region of the middle piece 13 are free of depressions. That is, the surface structure 30 does not consist of depressions, so that no notching effects can occur in the middle piece 13 of the lock holder 10.

In the event of a crash, an inlet edge of the lock plate can be supported at least in sections on the wedge-shaped elevations 31 of the lock holder 10. The elevations 31 are arranged spaced apart from one another, there being sufficient space between the individual elevations 31 for the leading edge of the lock plate. According to the invention, the elevations 31 can also have an opposite orientation compared to that shown in FIG. 2A (cf. the orientation in FIGS. 1A and 1B).

The surface structure has a length L, which is preferably between approximately 5 mm and approximately 50 mm, preferably between approximately 7.5 mm and approximately 35 mm, particularly preferably between approximately 12.4 mm and approximately 25 mm in the direction of the longitudinal extent x of the lock bracket 12 has. According to the invention, the surface structure 30, in particular the elevations 31, can be formed by means of thermal deformation, preferably by means of a laser beam. The interlocking geometry of the surface structure which can be adjusted thereby enables the effects according to the invention. The height h of the elevations 31 can preferably be between approximately 0.01 mm and approximately 5 mm, preferably between approximately 0.1 mm and approximately 3 mm, particularly preferably between approximately 0.5 mm and approximately 2 mm. A further possible embodiment of a lock holder 10 according to the invention is shown in FIG. 2B. The lock holder 10 has a lock holder plate 11, a lock holder bracket 12 with a central piece 13, a locking bolt 15, a connecting bolt 14 and a lock holder bracket opening 16. The middle piece 13 of the lock holder 10 has a surface structure 30 which is wave-shaped. The undulating elevations 31 have a height h and extend in the longitudinal extent x of the lock holder 10 over a length L. Similar to the exemplary embodiment from FIG. 2A, the elevations 31 can be geometrically complementary to an inlet edge of the lock plate. In particular, the distances between the elevations 31 are designed such that an inlet edge of the lock plate can be arranged between two elevations 31. In the event of a crash, an inlet edge of the lock plate can thus be arranged / held in contact with at least one elevation or between two elevations 31.

FIG. 3 shows further possible embodiments of the surface structure 30 according to the invention on the middle piece 13 of the lock holder 10. A first possible geometry of the elevations 31 of the surface structure 30 can be four-square / rectangular. Furthermore, it is conceivable that, in a further embodiment, the elevation 31 is semicircular / semicircular and is formed in a convex configuration on the center piece 13 of the lock holder 10. Furthermore, FIG. 3 shows pyramid / triangular elevations 31, which likewise have depressions 32 which protrude into the middle piece 13 of the lock holder 10. The depressions 32 are formed as concave material recesses on the lock holder 10. A further possible embodiment from FIG. 3 shows a wedge-shaped geometry, the elevations 31 being designed to be inclined. A leading edge of the lock plate can be brought into engagement or contact between the elevations 31, so that in the event of a crash the leading edge contacts the Elevations 31 can support, whereby the tearing forces of a motor vehicle lock can be increased.

Reference list

10 lock holders

11 lock holder plate

12 lock bracket

13 center piece

14 connecting bolts

15 locking bolts

16 lock bracket opening

20 lock

21 rotary latch

22 pawl

23 blocking lever

30 surface structure

31 surveys

32 wells 100 motor vehicle lock

110 lock plate

11 1 inlet edge h height L length x length

Claims

1 . Lock holder (10) for a motor vehicle lock (100), with a

Lock holder plate (1 1) and at least one lock holder bracket (12) which has a central piece (13), a locking bolt (15), a connecting bolt (14) and one formed by it and by a rotary latch (21)

Motor vehicle lock (100) has a comprehensive lock holder bracket opening (16),

characterized in that

at least the middle piece (13) has a surface structure (30), the surface structure (30) being able to be brought into operative connection with a lock plate (1 10) of the motor vehicle lock (100) at least in sections in the event of a crash.

2. lock holder (10) according to the preceding claim,

characterized in that

the surface structure (30) is free of depressions.

3. lock holder (10) according to any one of the preceding claims,

characterized in that

the surface structure (30) has at least one elevation (31) and / or at least one depression (32).

4. lock holder (10) according to any one of the preceding claims,

characterized in that

the elevation (31) and / or the depression (32) in the event of a crash with a

Contacted leading edge (1 1 1) of the lock plate (1 10), in particular supported.

5. lock holder (10) according to any one of the preceding claims,

characterized in that

the elevations (31) and / or depressions (32) are arranged at a distance from one another.

6. lock holder (10) according to any one of the preceding claims,

characterized in that

the surface structure (30) has a length (L) between approximately 5 mm and approximately 50 mm, preferably between approximately 7.5 mm and approximately 35 mm, particularly preferably between approximately 12.5 mm and approximately 25 mm in the direction of the longitudinal extent (x) of the lock holder bracket.

7. lock holder (10) according to any one of the preceding claims,

characterized in that

the surface structure (30), in particular the elevation (31) and / or the depression (32) by means of thermal deformation, in particular by means of

Laser steel is formed.

8. lock holder (10) according to any one of the preceding claims,

characterized in that

the surface structure (30) is essentially designed as a tooth geometry or as a shaft geometry.

9. lock holder (10) according to any one of the preceding claims,

characterized in that

the elevation (31) and / or the depression (32) has a height (h) between approximately 0.01 mm and approximately 5 mm, preferably between approximately 0.1 mm and approximately 3 mm, particularly preferably between approximately 0.5 mm and about 2 mm.

10. lock holder (10) according to any one of the preceding claims,

characterized in that

the surface structure (30), at least in sections, in particular the elevation (31) and / or depression (32), is geometrically complementary to an inlet edge (1 1 1) of the lock plate (110).

11. lock holder (10) according to any one of the preceding claims,

characterized in that

the middle piece (13) in the area of the surface structure (30), in particular the elevation (31) or the depression (32) additionally has an increased / greater roughness compared to the non-structured areas.

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