DE102005052190A1 - Motor vehicle door lock, has two drive motors e.g. locking motor and anti-theft or child protection motor, and locking units comprising coupling unit that engages three positions opposite to internally and externally operated lever chains - Google Patents

Abstract

The lock has an externally operating lever chain (6), internally operating lever chains (4, 7), and two drive motors e.g. locking motor (9) and anti-theft or child protection motor (10), that act on locking units (12-15). The locking units and the externally and internally operating lever chains are controllable in functional positions. The locking units exhibit a pressurized coupling unit (16), which engages three different positions opposite to the lever chains (4, 6, 7), so that the operating lever chains (4, 6, 7) are activated/deactivated.

Description

The The invention relates to a motor vehicle door lock, with at least one Locking element, at least one the locking element impinging drive motor, and with an outside and inside operating lever chain, wherein the locking element and the lever chains at least in the Function positions "locked / unlocked", "child safety on / off" and "anti-theft protection on / off" are controllable.

Such a motor vehicle door lock generally cooperates with a locking bolt attached to a body and with this forms a motor vehicle door lock. Such motor vehicle door locks are known in practice and are otherwise in the DE 100 46 188 A1 or even the EP 0 917 612 B1 presented. In both cases, only a single drive motor is used, which realizes, for example, with the aid of a contour disc, the various functional positions which are present ( DE 100 46 188 A1 ) with V (locked state), S (theft-proof) and K (child-proof).

As part of the EP 0 917 612 B1 a control disk is used, which has a plurality of distributed over its circumference arranged control cam for the various functional positions. As a result, a simplified structure to succeed, without affecting the reliability.

The known motor vehicle door locks are however with the fundamental Disadvantage afflicted that the structure is complicated and therefore costly. Furthermore This affects the reliability. Here is the invention overall remedy.

Of the Invention is the technical problem underlying a motor vehicle door lock to further develop the embodiment described above, at the same time giving high functional reliability at low cost is. Furthermore should be opposite the previous designs increased life can be achieved.

to solution This technical problem is a generic motor vehicle door lock characterized in that the locking element is one of them has acted upon coupling element, which at least three Positions opposite the operating lever chains and thereby the inner operation lever chain, the outer operation lever chain or both are activated / deactivated.

Either the outside operating lever chain as well as the inside actuating lever chain include the entire lever mechanism, which in the motor vehicle door lock is arranged and on the one hand to an outdoor operation and on the other hand an inside operation connected. In the simplest case this can only be an external operating lever and only one inside operating lever be. Of course If necessary, also transmission lever with covered.

It has proved to be particularly advantageous when the coupling element as connected to the locking element coupling slide into the operating lever chains engaging coupling nose is executed. That's how it works Coupling element or the coupling slide for taking his at least three different positions a mostly linear motion. This movement is also followed by the coupling nose, which consequently follows of the sliding (linear) path the at least three different ones Positions takes.

there usually corresponds to a first position to the position "unlocked, child safety (and consequently also theft protection) "represents a second position the state "unlocked, child safety a ", being in this Case the anti-theft device is switched off. The third position belongs finally to the Functional position "locked", being in this Case both the extra Positions "Parental Control and theft protection from "as also "child safety and anti-theft device "realized can be. The change from "child safety and theft protection from "to" child safety lock and Anti-theft device "corresponds in the latter case, that the locking element in the Position "on" is blocked.

in the Detail engages the coupling element with a guide pin in an actuating recess of the locking element and can therefore by pivoting of the locking element the desired three different Take positions. In this context, it has in total proven, when two drive motors are used, on the one hand a lock motor and on the other hand an anti-theft / parental lock motor are provided.

In this case, the locking motor usually works on a central locking lever and a locking lever connected thereto, which are to be regarded as a whole locking elements. On the other hand, the anti-theft / parental control motor alone acts on the locking lever and, consequently, on the clutch lever acted on by it ment or engaging with the coupling nose in the actuating recess of the locking element coupling slide.

The Internal operating lever chain has at least a interacting with the coupling element inside operating lever or internal operation transmission lever, which a Inside actuation idle recess having for the coupling nose. As soon as the coupling nose so in this inner operation idling recess engages, goes the associated Internal operating lever and therefore the connected inside control lever chain is empty.

Also the outside operating lever chain has at least a interacting with the coupling element external actuating lever. In addition is regularly sear realized, which with a catch of catch and pawl interacts. This release lever is generally with an external operation idle slot equipped.

The previously described internal actuation idle recess in the inside operating lever and the external operation idle recess in the sear are generally spatially offset with respect to an actuation direction of the coupling element or spaced from each other. Of course, instead of the release lever also the outside operating lever be equipped with the mentioned external actuation idling recess. Furthermore feature both the inside operating lever as well as the external operating lever or the release lever on a Functional recess or a function stop respectively one Function edge, which preferably congruent to each other in Reference to the direction of actuation are arranged of the coupling element.

is the coupling nose of the coupling element in this functional recess of the inside operating lever or at the functional edge of the release lever, so corresponding each admission of the associated Lever chain that the acted upon by the release lever or also connected to this pawl of Gesperres in the direction Gesperreöffnung is charged. Then the motor vehicle door lock is unlocked and the Parental control (and the anti-theft device) are located in the "off" position (first position the coupling element).

comes in contrast, the said coupling nose by a corresponding admission of the coupling element (about the locking motor and the locking lever and / or by means anti-theft / parental lock motor including cams) in the area of influence of the internal operation idling recess, the position "unlocked, child safety a "taken. The anti-theft device is in the "off" position.

In performs this functional position the inside actuating lever chain an idle stroke, because the coupling nose of the coupling element in the area of the internal actuating idling recess of the inside operating lever located. In contrast, the coupling nose is unchanged in engagement with the functional edge the release lever, so that at its operation in the coupling nose acting on external operating lever still in is able to over the trigger to open the locking mechanism. This is the normal child safety function in which the inside operating lever chain and hence the inside door handle go empty, but unchanged an opening from the outside over the External operating lever chain is possible.

Around the third position of the coupling element and consequently the coupling nose compared to the Lever chains occupy the locking motor acts on the Central locking lever and the locking lever connected to it the coupling element such that the coupling nose in the Area of external operation idle recess the release lever located. In this case, although both the external operating lever and the inside operating lever able to act on the coupling nose. This, however, gives way in the external operation idle recess the release lever out, so that the locking mechanism can not be opened. It is only possible through single or multiple actuation of the inside operating lever and / or Outside the operating lever the central locking lever and / or locking lever in his to transfer unlocked position, so that afterwards (as long as the parental control and the Anti-theft device are in the "off" position) the lock is open can be, because in this way the vehicle door lock in the position "unlocked" and "child safety and Anti-theft device is transferred from " (Override function).

If, however, in the previously described position "locked" of the locking element acted upon by the anti-theft / parental control motor engaging in the external actuation idling recess of the coupling element, the cam cooperating therewith ensures that the locking lever is blocked. Consequently, the vehicle door lock can not be transferred to the "unlocked" position, even if the outside operating lever and / or the inside operating lever are subjected to a load. Logically located the vehicle door lock then locked in the position ", child safety lock and anti-theft device on". That is, in the locked state, the parental control and theft functions can only be engaged together.

in the The result is a motor vehicle door lock for disposal which is initially once distinguished by the fact that only two drive motors, namely on the one hand the locking motor and on the other hand the anti-theft / parental control motor required are. At the same time dispensed with the invention in contrast to the state of the art on complex and subject to functional defects contour discs or control discs. This will be the design effort and become Consequently, the costs kept low. At the same time is a high reliability Given a long service life. This is the main advantages to see.

in the The invention will be described below with reference to a purely exemplary embodiment drawing closer explains; show it:

1 the motor vehicle door lock according to the invention in the position "unlocked, child safety (and theft protection) off" in front view,

2 the object after 1 partially in rear view,

3 the motor vehicle door lock after 1 in the position "unlocked, child safety lock on" (as well as theft protection off) in front view,

4 the object after 3 partially in a rear view,

5 the motor vehicle door lock in the functional position "locked, child safety and anti-theft device off",

6 the motor vehicle door lock in the position "locked, child safety lock and anti-theft device on" and

7 an enlarged detail from the 6 ,

In the figures, a motor vehicle door lock is shown, which as usual on a locking mechanism 1 . 2 out of a rotary latch 1 and pawl 2 features. To the pawl 2 to dig out or from the catch 1 take off is a trigger 3 realized. The release lever 3 , the pawl 2 , an indoor operation transmission lever 4 and an outside operating lever 6 are coaxially about an axis 5 rotatably mounted in a lock case, not shown, or lock housing. Will the release lever 3 in the direction of the arrow according to 1 and 2 acted upon, so is the trigger lever 3 connected or with this possibly in one piece running pawl 2 from the rotary latch 1 lifted off, so that the catch 1 in the direction of the arrow in 1 spring-assisted can open and the locking mechanism 1 . 2 is transferred to the "open" position.

In addition to the locking mechanism 1 . 2 the motor vehicle door lock has an external operating lever chain 6 and an inside operating lever chain 4 . 7 , In the context of the embodiment and not limitation, the external operating lever chain 6 only the one outdoor operating lever 6 on, which is the same as the release lever 3 and the pawl 2 also rotatable about the axis 5 is stored on this. In contrast, the inside operating lever chain sits down 4 . 7 from the in 1 perpendicular to the plane around an axis 8th swiveling internal operating lever 7 and the inside operation transmission lever 4 together. Will the inside operating lever 7 (For example, by a door inner handle, not shown) acted upon, so moves the internal operation transmission lever 4 according to the arrow direction clockwise about its axis 5 , An application of the external operating lever 6 also corresponds to a clockwise movement of the external actuating lever 6 around the common axis 5 ,

Furthermore, there are two drive motors 9 . 10 intended. The one drive motor 9 is as a locking motor 9 executed while the other drive motor 10 The function of an anti-theft / parental lock motor 10 takes over. In fact, the locking motor works 9 via an intermediate worm gear 11 on an inside lock lever 12 , which in turn with a central locking lever 13 interacts, in turn, in operative connection with a locking main lever or locking lever 14 stands. Only hinted is an additional external locking lever 15 which, however, has no meaning for the operation described below and only for the sake of completeness mentions.

The inside lock lever 12 , the central locking lever 13 , the locking lever 14 and the outside lock lever 15 make a total of a locking element 12 . 13 . 14 . 15 , which in conjunction with the lever chains 6 ; 4 . 7 can be controlled in the functional positions "locked / unlocked", "child safety on / off" and "anti-theft protection on / off". This will be explained in detail below.

For the individual functional positions and their realization of particular importance is a coupling element 16 that of the locking element 12 . 13 . 14 . 15 or the locking lever 14 is charged. When comparing the 1 . 3 and 5 one recognizes that the said coupling element 16 a total of three different positions relative to the lever lever chains 6 ; 4 . 7 can take. In principle, even more positions are conceivable. In the context of the embodiment, the three different positions correspond to the actuating lever chains 6 ; 4 . 7 to that the inside operating lever chain 4 . 7 , the outdoor operation lever chain 6 or both levers 6 ; 4 . 7 be activated / deactivated.

In the illustration after the 1 and 2 is the said coupling element 16 in the first (extreme right) position leading to the "unlocked" position of the locking element 12 . 13 . 14 . 15 or the locking lever 14 corresponds. The anti-theft device and also the child safety device are in their functional position "off". Because in the said first position, the locking mechanism 1 . 2 both with the help of the external operating lever 6 as well as by applying the internal operating lever 7 to open.

It can be seen that in this functional position, a coupling nose 17 on the coupling element designed as a coupling slide 16 is in its extreme right position. Based on the rear view to 2 It is clear that in this first position, the coupling element or the coupling slide 16 with its coupling nose 17 a functional recess 18 the release lever 3 has reached, and that end is positioned in this. Now if the external operating lever 6 in the direction of the arrow 1 clockwise, so it takes with an associated function edge 19 the coupling nose 17 with, in turn, the trigger 3 acted upon, in the rear view after 2 in the indicated counterclockwise direction. This also performs the trigger on the trigger 3 connected pawl 2 a counterclockwise movement and as a result thereof gives the catch 1 free.

The same thing happens when the inside operating lever 7 is pulled so that the inside operation transmission lever 4 in the 1 indicated clockwise movement about the axis 5 performs. Because even in this case, the coupling nose 17 in a functional recess 20 of the indoor operation transmission lever 4 positioned so that the also moved in a clockwise direction inside transfer lever 4 after 1 the coupling nose 17 takes along and therefore the release lever 3 in the illustration after the 1 pivoted clockwise (counterclockwise rotation in the 2 ), so that in turn results in the pawl 2 the catch 1 releases.

To now the coupling element 16 or the coupling slide 16 in its second position according to the 3 to transfer, it is necessary the locking element 12 . 13 . 14 . 15 or the locking lever 14 around his axis 21 slightly to turn clockwise. This is ensured by the anti-theft / parental lock motor 10 with its cam N. In this process, the coupling element 16 when comparing the 1 and 3 slightly moved to the left, because the coupling element 16 with a guide pin 22 in an actuating recess 23 of the locking element 12 . 13 . 14 . 15 or the locking lever 14 engages and thus the movement of the locking lever 14 or that of the locking element 12 . 13 . 14 . 15 follows.

In this quasi intermediate position or second position of the coupling element 16 between the two end positions after the 1 (first position) and according to the 5 and 6 (third position) has the coupling nose 17 the coupling element or coupling slide 16 the functional recess 20 of the indoor operation transmission lever 4 leave. In fact, the said coupling nose is located 17 now in the range of an internal operation idling recess 24 , which in the context of the embodiment in the internal operation transmission lever 4 is trained. Equally well could be said inside idling recess 24 but also in or on the inside lever 7 be realized when no indoor operation transmission lever 4 is provided (cf. 3 ). The indoor operation idle recess 24 for the coupling nose 17 ensures that when an action on the inside lever 7 the indoor operation transmission lever 4 as usual, a clockwise movement about its axis 5 in the front view 3 executes, in accordance with the indicated direction of the arrow. Here, however, the coupling nose emerges 17 the coupling slide 16 in the aforementioned internal operation idling recess 24 one, leaving the inside operating lever 7 total is empty or the release lever 3 can not apply. So it is not possible the locking mechanism 1 . 2 to be opened by internal operation.

In contrast, there is the coupling nose 17 in relation to the release lever 3 unchanged in its functional recess 18 so that the outside operating lever 6 with its functional edge 19 still the release lever 3 clockwise 3 around the axis 5 can move, so as a result, the pawl 2 is dug. The motor vehicle door lock be found in the second position accordingly in the position "unlocked, child lock on" because the locking mechanism 1 . 2 Although it can be opened by external operation, but not by an internal operation.

In the 5 has the locking element 12 . 13 . 14 . 15 or the locking lever 14 its third position or the coupling element 16 reaches its extreme left end position. To accomplish this, the transition from the 3 to the 5 the anti-theft / child-lock motor cam from the lock lever 14 moved away, leaving the locking motor 9 over the worm gear 11 and the inside lock lever 12 the connected central locking lever 13 around his axis 25 has pivoted clockwise. In this process has the central locking lever 13 the locking lever 14 through a pin that touches it 26 taken along, so that in the third position after 5 that to the locking lever 14 connected coupling element 16 has reached its extreme left position.

In this position 5 has the coupling nose 17 the functional recess 18 the release lever 3 leave and is located in the area of an external operation idle recess 27 in the said release lever 3 , One recognizes when comparing the 1 . 3 and 5 in that the internal operation idling recess 24 in the inside operation transmission lever 4 and the external operation idle recess 27 in the release lever 3 spatially offset from each other, with respect to an actuating direction 28 for the coupling element or the coupling slide 16 , This actuation direction 28 is essentially linear and is largely due to the shape of the functional recess 18 in the release lever 3 given (cf. 6 ).

In the in 5 shown third position of the coupling element 16 both the child safety device and the anti-theft device are switched off. Because if in the functional position after the 5 for example, the inside operating lever 7 one or more times is applied, this leads to the fact that the central locking lever 13 or the locking lever 14 in its unlocked position according to the 1 is brought (override). Because the inside operation transmission lever 4 with a fold A ensures that during a movement of the inside operation transmission lever 4 around his axis 5 clockwise the locking lever 14 counterclockwise about its axis 21 is pivoted. In this process, the locking lever takes 14 the central locking lever 13 by means of the pin 26 With. Something similar is observed when the external operating lever 6 is charged.

To now in the position "locked" after the 5 Also, to ensure a parental control and anti-theft function, provides the anti-theft / parental control motor 10 for that the locking lever 14 and with it the entire locking element 12 . 13 . 14 . 15 with the help of the lever levers 6 ; 4 . 7 can not (anymore) be moved. For this purpose, the anti-theft / parental lock motor drives 10 with its cam N in the "locked" position of the locking lever 14 against a stop there 29 , so that in the functional position after 6 the locking lever 14 not (anymore) in his position "unlocked" can be transferred.

In this functional position, for example, the inside operating lever 7 acted upon, so a concomitant clockwise movement of the inside operation transmission lever leads 4 around his axis 5 only to the fact that the central locking lever 13 (temporarily) assumes its unlocked position. At the "locked" position of the locking lever 14 and its blockade by the cam N, however, nothing changes. As a result, also remains of the locking lever 14 connected coupling slide or the coupling element 16 in its extreme left position and thus the coupling nose 17 ,

The coupling nose 17 So it acts unchanged with the external actuation idling recess 27 in the release lever 3 together, so that the locking mechanism 1 . 2 can not be opened, neither with the inner lever lever chain 4 . 7 still with the external operating lever chain 6 , This corresponds to the functional position "locked" as well as "Child safety and theft protection on".

Claims (11)

Motor vehicle door lock, with at least one locking element ( 12 . 13 . 14 . 15 ), at least one the locking element ( 12 . 13 . 14 . 15 ) acting on the drive motor ( 9 . 10 ), and with an external operating lever chain ( 6 ) and an internal operating lever chain ( 4 . 7 ), wherein the locking element ( 12 . 13 . 14 . 15 ) and the lever chains ( 6 ; 4 . 7 ) at least in the functional positions "locked / unlocked", "child safety on / off" and "anti-theft device on / off" are controllable, characterized in that the locking element ( 12 . 13 . 14 . 15 ) a coupling element (cf. 16 ), which has at least three different positions with respect to the actuating lever chains ( 6 ; 4 . 7 ) and thereby the inside operating lever chain ( 4 . 7 ), the external operating lever chain ( 6 ) or both lever chains ( 6 ; 4 . 7 ) activated / deactivated. Motor vehicle door lock according to claim 1, since characterized in that the coupling element ( 16 ) than to the locking element ( 12 . 13 . 14 . 15 ) connected coupling slide ( 16 ) into the actuating lever chains ( 6 ; 4 . 7 ) engaging coupling nose ( 17 ) is executed. Motor vehicle door lock according to claim 1 or 2, characterized in that the coupling element ( 16 ) with a guide pin ( 22 ) in an actuating recess ( 23 ) of the locking element ( 12 . 13 . 14 . 15 ) intervenes. Motor vehicle door lock according to one of claims 1 to 3, characterized in that two drive motors ( 9 . 10 ), on the one hand a locking motor ( 9 ) and on the other hand an anti-theft / parental control motor ( 10 ) are provided. Motor vehicle door lock according to claim 4, characterized in that the locking motor ( 9 ) to a central locking lever ( 13 ) and a cooperating locking lever ( 14 ) is working. Motor vehicle door lock according to claim 4 or 5, characterized in that the anti-theft / parental control motor ( 10 ) the locking lever ( 14 ). Motor vehicle door lock according to one of claims 1 to 6, characterized in that the internal operating lever chain ( 4 . 7 ) at least one with the coupling element ( 16 ) interacting inner actuating lever or inner actuating transmission lever ( 4 ), which has an internal actuating idling recess ( 24 ) for the coupling nose ( 17 ) of the coupling element ( 16 ) having. Motor vehicle door lock according to one of claims 1 to 7, characterized in that the external actuating lever chain ( 6 ) one with the coupling element ( 16 ) Interactive External Operating Lever ( 6 ) having. Motor vehicle door lock according to one of claims 1 to 8, characterized in that a with a locking mechanism ( 1 . 2 ) Interacting trigger ( 3 ) with an external actuating idling recess ( 27 ) is equipped. Motor vehicle door lock according to one of claims 1 to 9, characterized in that the internal actuating idling recess ( 24 ) and the external operation idling recess ( 27 ) with respect to an actuation direction ( 28 ) of the coupling element ( 16 ) are arranged spatially spaced from each other. Motor vehicle door lock according to one of claims 1 to 10, characterized in that both the internal operating lever chain ( 4 . 7 ) as well as the external operating lever chain ( 6 ) each have a functional recess or a functional edge ( 19 . 20 ), which preferably congruent to each other in relation to the actuating direction ( 28 ) of the coupling element ( 16 ) are arranged.