EP3464764A1

EP3464764A1 - Motor vehicle lock

Info

Publication number: EP3464764A1
Application number: EP17727553.4A
Authority: EP
Inventors: Ludger Graute; Roman Joschko; Pan Ren; Andreas Hoffmann
Original assignee: Brose Schliesssysteme GmbH and Co KG
Current assignee: Brose Schliesssysteme GmbH and Co KG
Priority date: 2016-06-02
Filing date: 2017-05-26
Publication date: 2019-04-10
Anticipated expiration: 2037-05-26
Also published as: WO2017207422A1; CN109328254A; DE102016110201A1; KR102178772B1; EP3464764B1; CN109328254B; JP6824294B2; JP2019525031A; US20190211588A1; US11371268B2; KR20190008963A

Abstract

The invention relates to a motor vehicle lock comprising a lock mechanism and comprising a lock housing for receiving the lock mechanism, wherein the lock mechanism has at least one actuation lever that can pivot about a geometrical lever axis, wherein a bearing bushing element is provided, on which the actuation lever is radially mounted, wherein the actuation lever is axially, bilaterally mounted on the bearing bushing element and coupled to the bearing bushing element via a bayonet closure for this purpose, and in the assembly of the motor vehicle lock, the actuation lever and the bearing bushing element can be pre-assembled to form a separate unit via the creation of the bayonet closure.

Description

Motor vehicle lock

The invention relates to a motor vehicle lock according to claim 1 and to a method for mounting such a motor vehicle lock according to claim 13.

The Kjaftfahrzeugschloss in question may be assigned to all types of Verschluß- elements of a motor vehicle. These include doors, in particular side doors or rear doors, trunk lids, tailgates, engine hoods, load compartment floors or the like.

The compactness of the motor vehicle lock in question is of particular importance. In this sense, the motor vehicle lock is equipped with bearing domes, on each of which a plurality of levers spaced apart axially from one another are mounted. The resulting lever package is often supported by spacers on housing components.

One challenge is to comply with a defined axial position of the levers of the lever package, as it must always be expected with geometric tolerances of the components involved.

The invention is based on the problem of specifying a motor vehicle lock which permits a tolerance-insensitive mounting, in particular of a plurality of levers, on a geometric lever axis with low production outlay.

The above problem is solved by a motor vehicle lock with the features of claim 1.

The proposed motor vehicle lock is equipped with a lock mechanism as well as with a lock housing for receiving the lock mechanism. The lock mechanism has at least one actuating lever pivotable about a geometric lever axis, wherein a bearing sleeve element is provided, on which the actuating lever is mounted radially. The actuating lever is not only radially mounted on the bearing sleeve element, but also axially supported. It is essential that the actuating lever for an axial two-sided bearing is coupled to the bearing sleeve element via a bayonet closure. It is also essential that, as part of the assembly of the motor vehicle lock, the actuating lever together with the bearing sleeve element can be removed to form a separate unit by generating the bayonet closure.

An interesting feature of the proposed solution is the fact that a bearing sleeve element is provided, which can be used on the one hand as a spacer in the above sense and on the other hand as an axial two-sided Lagerang for the actuating lever. By this double use of the bearing sleeve element bearing components can be saved. Furthermore, the production of the bayonet closure in the course of a pre-assembly basically results in the possibility of a parallelization of assembly processes.

The embodiment of the axial closure between the actuating lever and the bearing sleeve element as a bayonet closure is advantageous insofar as the production of the bayonet closure with simple assembly movements, in particular automated, can run and that by means of the bayonet closure safe, two-sided axial bearing of the operating lever without can safely implement large mechanical effort.

The preferred embodiments according to claims 2 to 5 relate to preferred variants for the production of the bayonet closure. In this case, the particularly preferred embodiment according to claim 5, the possibility of easy pre-assembly of actuating lever and bearing sleeve element in that no accurate and therefore expensive assembly movements are required during pre-assembly and suitable design. In a further preferred embodiment according to claim 5 is ensured in the installed state of the motor vehicle lock solely by a movement restriction of the actuating lever and bearing sleeve element that unlocking the bayonet lock is locked. A separate locking element for locking the bayonet lock is not required accordingly. In the further preferred embodiment according to claim 6, the Lagerhülse- nelement is axially supported on two sides and can serve as a spacer nen extent. This shows the possible double function of the bearing sleeve element, namely on the one hand as a spacer and on the other hand as a bearing for the actuating lever.

The likewise preferred embodiments according to claims 8 and 9 relate to preferred interactions of the bearing sleeve element with a bearing dome of the motor vehicle lock.

An axial support of the bearing sleeve element on a shoulder of the bearing dome ensures that the position of the actuating lever is determined only by the geometrical tolerances of the bearing dome, and not by geometric tolerances of any additional lever (claim 9).

Such additional levers are the subject matter of claims 10 to 12. In this case, the bearing sleeve element provides an axial support, ie an axial bearing, for at least one additional lever. Because the bearing sleeve element, which is preferably mounted on the bearing dome, at the same time provides an axial bearing for at least one additional lever, the construction of undesired tolerance chains can be reliably avoided from one lever to the other lever.

According to another teaching according to claim 13, which has independent significance, a method for assembling a motor vehicle lock according to the first-mentioned teaching is claimed. In that regard may be made to all statements to the former teaching.

It is essential according to the further teaching that in a pre-assembly step the actuating lever and the bearing sleeve element form a preassembled unit to form the bayonet fitting, with the preassembled unit subsequently being mounted on the motor vehicle lock.

The pre-assembly of actuating lever and bearing sleeve element allow the parallelization of process steps, wherein the proposed construction of the bearing sleeve element ensures compliance with predetermined tolerances. Specifically, it is proposed according to claim 14 that in a first step the at least one additional lever is plugged onto a bearing dome of the motor vehicle lock and that, in a second step, the above-mentioned preassembled unit is plugged onto the bearing dome. Both procedural steps require assembly movements along the common, geometric lever axis, so that automated assembly is readily possible.

In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment. In the drawing shows

1 shows a motor vehicle door with a proposed motor vehicle lock in a view from the interior of the motor vehicle,

2 shows an embodiment of the motor vehicle lock according to FIG. 1 in an exploded view with the components essential for the invention, FIG.

FIG. 3 shows the motor vehicle lock according to FIG. 2 during the assembly of the motor vehicle lock after the preassembly of actuating lever and bearing sleeve element and FIG

4 shows the motor vehicle lock according to FIG. 3 after the assembly of the pre-assembled unit on the motor vehicle lock, moreover.

The motor vehicle lock 1 shown in the drawing is associated with a side door la of a motor vehicle. The motor vehicle lock 1 can basically be applied to all types of closure elements of a motor vehicle. In that regard, reference may be made to the introductory part of the description.

The basic structure of the motor vehicle lock 1 comprises the closing elements lock latch 2 and pawl 3, which interact in a conventional manner. The latch 2 can be brought into at least one closed position in which it is in holding engagement with a closing element 4, in particular a closing wedge or a striker. The latch 2 is held by the pawl 3 in its closed position. The lifting of the Pawl 3 is connected to the release of the lock latch 2 in its open position, which is associated with the release of the closing element 4.

The side door la accommodates the motor vehicle lock 1 in the illustrated preferred embodiment, while the closing element 4 is arranged on the motor vehicle body. This can also be the other way around.

Fig. 1 further shows that an outside door handle 5 and a door inner handle 6 are provided, which are each coupled via Bowden cables 5a, 6a with the motor vehicle lock 1. Depending on the closed state of the motor vehicle lock 1, the pawl 3 can be lifted by actuating the outside door handle 5 or the inside door handle 6. The illustrated motor vehicle lock 1 is equipped with a lock mechanism 7, which here comprises all the mechanical components required for the implementation of the lock functions. The lock mechanism 7 is received by a lock housing 8, which does not necessarily have to be designed to be closed. In that regard, the term "lock housing" is to be understood in a broad sense, and in principle it can also be that a rear plate or a closing plate is a constituent part of the lock housing 8a in this sense.

The proposed solution is explained below with reference to a lever package 9 of the lock mechanism 7. It is first essential that the lock mechanism 7 has at least one pivotable about a geometric lever axis 10 actuating lever 11. Here and preferably, it is at the operating lever 1 1 to an external operating lever, which is coupled via the Bowden cable 1 la with the outside door handle 5. Fig. 2 shows that a bearing sleeve member 12 is provided, on which the actuating lever 1 1 is radially mounted. This is best achieved by a synopsis of FIGS. 2, 3 and 4.

It may be pointed out that the terms "radial" and "axial" are always to be understood here with regard to the geometric lever axis 10 of the actuating lever 11, without expressly being pointed out in each case. It follows from the sectional view of FIG. 4, that the actuating lever 1 1 is mounted on the bearing sleeve member 12 axially on two sides. This means that the axial adjustability of the actuating lever 11 in both axial directions is defined by the axial two-sided bearing. For this purpose, the actuating lever 1 1 is coupled to the bearing sleeve element 12 via a bayonet closure 13. This is in turn due to a combination of FIGS. 2, 3 and 4. Interesting in the proposed solution is the fact that during assembly of the motor vehicle lock 1, the actuating lever 1 1 and the La gerhülse element 12 by generating the bayonet catch 13 to a Separate unit 14 is pre-assembled, as shown in Fig. 3. The term "assembly of the motor vehicle lock" here relates to the production of the motor vehicle lock 1, and not the installation of the motor vehicle lock 1 in the side door la o. The like. The term "separate" means that the preassembled unit 14 consisting of Actuating lever 1 1 and bearing sleeve element 12 as such, separated from the other components of the motor vehicle lock 1, can be generated.

In principle, at least two actuation levers 11, preferably more than two actuation levers 11, can also be mounted on the bearing sleeve element 12. It is also conceivable that more than one bearing sleeve element 12, preferably more than two bearing sleeve elements 12, are provided which each support at least one actuating lever 1 1.

In order to avoid that the bayonet lock 13 unintentionally loosens when handling the preassembled unit 14, a fixing arrangement, not shown, is preferably provided between the actuating lever 11 and the bearing sleeve element 12. For example, the fixing arrangement may be a latching arrangement which has to be latched in the production of the bayonet closure 13. It is also conceivable that in the manufacture of the bayonet closure 13 pinch ribs must be run over, which ensure that the bayonet can not be solved without increased effort. A synopsis of FIGS. 3 and 4 shows that the bearing sleeve element 12 is rotationally fixed with respect to the lever axis 10 with the lock housing 8 is formed. This is realized here and preferably by the bearing sleeve element 12 having a support arm 15 which is supported in a rotationally fixed manner relative to the lock housing 8 with respect to the lever axis 10. For this purpose, the support arm

15 an opening 15 a, which in the assembly of the unit 14 on a bearing dome

16 is postponed. Because the bearing dome 16 is spaced from the pivot axis 10, the desired supporting effect results.

In the exemplary embodiment shown, the bayonet closure 13 is formed on the bearing sleeve element 12 on the one hand by a bayonet molding 17 and on the actuating lever 11 on the other hand by means of a bayonet counter-molding 18. The components actuating lever 11 and bearing sleeve element 12 can be pushed axially out of one another from the position shown in FIG. By pivoting the actuating lever 11 relative to the position sleeve element 12 about the lever axis 10, the bayonet closure 13 can be brought into the locked state shown in FIG. 3, in which the bayonet formation 17 and the bayonet counter-formation 18 form a vertical section. Swiveling back causes the bayonet lock 13 to assume its unlocked state. It is essential that only in the locked state (FIG. 3) the axially two-way bearing between actuating lever and bearing sleeve element 12 is provided. In the unlocked state (FIG. 2), however, an axial adjustment of actuating lever 1 1 and bearing sleeve element 12 is possible.

By using a bayonet closure 13, the proposed solution enables a particularly secure axial two-sided mounting of the actuating lever 1 1 on the bearing sleeve element 12. Specifically, the actuating lever 11 and the bearing sleeve element 12 in the installed state of the motor vehicle lock 1 (FIG. FIG. 4) relative to the bayonet closure 13 adopt a locking pivot position relative to one another, so that the bayonet closure 13 is in its above-mentioned locked state. In this case, the arrangement is furthermore preferably made such that the actuating lever 11 and the bearing sleeve element 12 are in the installed state of the motor vehicle. 1 lock are so limited in movement that an unlocking of the bayonet lock 13 is locked.

The sectional view of FIG. 4 shows that the bearing sleeve element 12 is axially supported on two sides. In this case, there is a support point on a part of the lock housing 8, here on a in Fig. 4 only indicated housing cover 8a.

In the illustrated preferred embodiment, the bearing sleeve element 12 has an axial projection 19 on which the bayonet molding 17 is arranged here and preferably. The axial extension 19 has in the embodiment shown in the drawing another function, namely the function of the axial support of the bearing sleeve member 12 on the lock housing 8, here on the housing cover 8a. The axial extension 19 assumes in the illustrated and so far preferred embodiment, another function, namely the function of receiving a spring element 20, which in a particularly preferred embodiment, a Schraubenfe- derelement, in particular a leg spring element, for the Betätigungshe- bel 1 1 acts. In principle, however, it is also conceivable that the spring element 20 is associated with another component of the lock mechanism 7.

4 shows that the bearing sleeve element 12 has the function of a spacer, by means of which the actuating lever 11 is held at a predetermined distance from the housing cover 8a. For storage of the lever package 9, which will be explained in more detail below, the motor vehicle lock 1 has a further bearing dome 21, wherein the bearing sleeve element 12, as shown in FIG. 4, is arranged coaxially with the bearing dome 21. Here and preferably, the bearing sleeve element 12 is attached to the bearing dome 21. Alternatively, the bearing sleeve element 12 can be inserted into the bearing dome 21 or attached to the bearing dome 21. The bearing dome 21 is connected to a part of the lock housing 8, preferably with a housing trough 8b, here and preferably in one piece.

The above-mentioned attachment of the bearing sleeve element 12 to the bearing dome 21 results in a particularly good centering of the bearing sleeve element 12 on the geometric lever axis 10. It has already been pointed out that the bearing sleeve element 12 is supported by its axial extension 19 on the housing cover 8a. Here and preferably, it is provided that the bearing sleeve element 12 is axially supported on its end facing away from the housing cover 8a on the bearing dome 21, here and preferably on a radial shoulder 22 of the bearing dome 21. This results preferably in that the bearing sleeve element 12 is fixed, in particular clamped, between the housing cover 8a of the lock housing 8 and the bearing dome 21. This eliminates additional measures for the attachment of the Lagerhülsen- element 12, which may be, for example, an additional rivet connection o. The like.

The lock mechanism 7 preferably has at least one additional lever 23, 24, here and preferably two additional levers 23, 24, which can be pivoted about the geometric lever axis 10 and which is pivotable about the geometric lever axis 10. In this case, the additional levers 23, 24 are mounted here and preferably on the bearing dome 21. The bearings of the additional levers 23, 24 are axially spaced from the bearing point of the actuating lever 1 1. The additional lever 23, 24 are the same as the bearing sleeve member 12 on the bearing dome 21 plugged.

When the additional lever 23 is the internal operating lever, which is coupled in the installed state of the motor vehicle lock 1 via the Bowden cable 6a with the door inner handle 6. The additional lever 24 is a so-called release lever, which depending on the lock state can be actuated by the external actuating lever 11 and / or by the inner actuating lever 23 and acts on the pawl 3.

The two additional levers 23, 24 are arranged between a further radial shoulder 25 of the bearing dome 21 and a circumferential collar 26 of the bearing sleeve element 12 and thereby axially mounted on two sides. The axial bearing of the actuating lever 1 1 on the one hand and the additional lever 23, 24 on the other hand have no alternating, tolerance-related influence on each other. Furthermore, it is shown in FIG. 4 that the bearing sleeve element 12 has a further axial projection 27 which is designed with the inner operating lever Additional lever 23 is engaged or can be brought, and supports this additional lever 23 axially on one side.

As a result, the levers 1 1, 23, 24 of the lever package 9 can be held in an axially defined position with the proposed solution, without this resulting in a high expenditure in terms of finishing. The axial extension 27 protrudes through openings 28 in the release lever 24, which further increases the overall compactness of the structure. According to another teaching, which has independent significance, the method for producing the proposed motor vehicle lock 1 as such is claimed.

It is essential according to the proposed method that the actuation lever 11 and the bearing sleeve element 12 form the preassembled unit 14 referred to above by forming the bayonet closure 13, wherein the preassembled unit 14 is subsequently attached to the motor vehicle lock 1 Incidentally, it is mounted. The pre-assembly results from the transition from FIG. 2 to FIG. 3. The assembly of the preassembled unit 14 on the motor vehicle lock 1, moreover, results from the transition from FIG. 3 to FIG. 4.

In a particularly preferred embodiment, the motor vehicle lock 1 on a above-mentioned bearing dome 21, wherein in a first step, the at least one additional lever 23 is attached to the bearing dome 21, wherein in a second step, the preassembled unit is attached to the bearing dome 21 , Subsequently, it is preferably provided that in a third step, the housing cover 8a is placed on the lock housing 8 otherwise, whereby the bearing sleeve member 12 is axially supported.

In a particularly preferred and easy-to-manufacture embodiment, the bearing sleeve element 12 is made of a plastic material. The bearing dome 21 is preferably also made of a plastic material. However, the bearing sleeve element 12 and / or the bearing dome 21 can also be reinforced by other materials, in particular by steel materials. In particular, In particular, it can be provided that the bearing dome 21 has a Stahldom chanic reinforcement.

Claims

Patent claims

1. Motor vehicle lock with a ScMoss mechanism (7) and with a lock housing (8) for receiving the ScMoss mechanism (7), the ScMoss mechanism (7) having at least one actuating lever (1 1) which can be pivoted about a geometric lever axis (10). , wherein a bearing sleeve element ( 1 2) is provided, on which the actuating lever ( 1 1 ) is mounted radially, the actuating lever

(1 1) is mounted axially on both sides on the bearing sleeve element (12) and is coupled to the bearing sleeve element (12) via a bayonet fitting (13) and that as part of the production of the motor vehicle lock (I) the actuating lever (1 1) and the bearing sleeve element (12) can be pre-assembled into a separate unit (14) by producing the bayonet lock (13).

2. Motor vehicle lock according to address 1, characterized in that the bearing sleeve element (12) is designed to be non-rotatable with the lock housing (8) with respect to the lever axis (10), preferably that the bearing sleeve element

(12) has a support arm (15) which is supported in a rotationally fixed manner relative to the lock housing (8) with respect to the lever axis (10).

3. Motor vehicle lock according to claim 1 or 2, characterized in that the bayonet fitting (13) is formed by a bayonet formation (17) on the bearing sleeve element (12) on the one hand and by a bayonet counter-formation (18) on the actuating lever (1 1 ) on the other hand is formed,

4. Motor vehicle lock according to one of the preceding claims, characterized in that the bayonet fitting (13) can be brought into a locked state and into an unlocked state by pivoting the actuating lever (11) relative to the bearing sleeve element (12) about the lever axis (10). and that the bayonet fitting (13) only provides the axial two-sided bearing between the actuating lever (1 1) and the bearing sleeve element (12) in the locked state and in the unlocked state an axial adjustment of the actuating lever (1 1) and the bearing sleeve element (12 ) allowed against each other.

5. Motor vehicle lock according to one of the preceding claims, characterized in that the actuating lever (1 1) and the bearing sleeve element (12) in the installed state of the motor vehicle lock (1) assume a locking pivoting position relative to the bayonet lock (13), preferably that the actuating lever (1 1) and the bearing sleeve element (12) in the installed state of the motor vehicle lock (1) Movement is restricted in such a way that the bayonet lock (13) cannot be unlocked,

6. Motor vehicle lock according to one of the preceding claims, characterized in that the bearing sleeve element (12) is supported axially on two sides, preferably that the bearing sleeve element (12) is on one. Part of the lock housing (8), in particular on a housing cover (8a), is axially supported.

7. Motor vehicle lock according to one of the preceding claims, characterized in that the bearing sleeve element (12) has an axial extension (19), preferably that the bayonet formation (17) is arranged on the axial extension (19), and / or, that the axial extension (19) serves to axially support the bearing sleeve element (12) on the lock housing (8), in particular on the housing cover (8a), and/or that the axial extension (19) serves to accommodate a spring element (20), in particular a screw spring element, for the actuating lever (1 1) or another component of the lock mechanism (7).

8. Motor vehicle lock according to one of the preceding claims, characterized in that a bearing dome (21) is provided and. that the bearing sleeve element (12) is arranged coaxially to the bearing dome (21), preferably that the bearing sleeve element (1.2) is plugged onto the bearing dome (21) or inserted into the bearing dome (21) or attached to the bearing dome (21). is, preferably that the bearing dome (21) is connected to a part of the lock housing (8), in particular in one piece.

9. Motor vehicle lock according to claim 8, characterized in that the bearing sleeve element (12) is axially supported on the bearing dome (21), in particular on a radial shoulder (22) of the bearing dome (21), preferably that the bearing sleeve element (12 ) is fixed, in particular clamped, between the housing cover (8a) of the lock housing (8) and the bearing dome (21).

10. Motor vehicle lock according to claim 8 or 9, characterized in that the lock mechanism (7) has at least one additional lever (23, 24) which can be pivoted about the geometric lever axis (10), preferably two further additional levers (23) which can be pivoted about the lever axis (10). , 24), and that the at least one additional lever (23, 24) is mounted on the bearing dome (21).

1 1 . Motor vehicle lock according to claim 10, characterized in that at least one additional lever (21) axially on both sides on the one hand through the bearing sleeve element (12), in particular a radial shoulder (26) on the bearing sleeve element (12), and on the other hand through the bearing dome (21) , in particular a radial shoulder on the bearing dome (21), is mounted.

12. Motor vehicle lock according to address 10 or 1 1, characterized in that the bearing sleeve element (12) has an axial extension (27) which can be brought into engagement with an additional lever (23, 24) mounted on the bearing dome (21) and which this additional lever (23, 24) is mounted axially on one side.

13. A method for assembling a motor vehicle lock (1) according to one of the preceding claims, wherein in a pre-assembly step the actuating lever (1 1) and the bearing sleeve element (12) form a pre-assembled unit (14) to form the bayonet lock (13). and wherein the pre-assembled unit (14) is subsequently mounted on the motor vehicle lock (1).

14. The method according to claim 13, characterized in that the motor vehicle lock (1) has a bearing dome (2 1) and that in a first step the at least one additional lever (23, 24) is plugged onto the bearing dome (2 1) and that in a second step the pre-assembled unit (14) is attached to the bearing dome (21).

15. The method according to claim 13 or 14, characterized in that in a third step a housing cover (8a) is placed on the lock housing (8) and thereby the bearing sleeve element (12) is axially supported.