EP1411194A1 - Vehicle door lock - Google Patents

Abstract

The door lock has a lock mechanism with an operating drive having an electric motor and a symmetrical setting element (3) and a switch lever (2), moved between different positions via the operating drive. At least 2 different positions of the setting element correspond to the same switch position of the switch lever, the setting element having a guide (5,6) engaged by a pin (7) of the switch lever, the number of guide sections corresponding to the number of initial positions of the setting element, with manual resetting of the switch lever causing the setting element to be returned to an initial position. An Independent claim for a setting element for an automobile door is also included.

Description

The present invention relates to a motor vehicle door lock having the features of the preamble of claim 1, a motor vehicle door lock with the Features of the preamble of claim 6 and an actuating element for a Motor vehicle door lock with the features of the preamble of claim 8. In the present case, the term motor vehicle door lock includes all types of door, Hood or Klappenschlössem summarized.

A disadvantage of known motor vehicle door locks is the fact that the easy manual adjustment of the shift lever by a comparatively long and thus time-consuming initial freewheeling of the actuator at the unlocking is bought. It is true that in the motor adjustment of the shift lever, the actuator or the pin in the slotted guide of the actuating element, first the expanded part of the slotted guide has to go through in order to get into the channel-shaped area of the slotted guide, so that a corresponding force on the shift lever is possible.

The previously indicated problem has already been recognized and treated (US 5,649,726 A). The motor vehicle door lock shown there first the usual closing elements such as latch and pawl and a corresponding Lock mechanism. Insofar may also for questions of disclosure this citation should be referenced.

In this known motor vehicle door lock is the construction of drive and actuator selected so that a switching state of the lever at least two, there in different embodiments two or four terms the effect of the actuator on the shift lever equivalent Positions of the control element are assigned. The behavior of in different Positions located actuating element relative to the shift lever is not only in the respective position itself, but also in an adjustment from the each position identical.

This allows a long freewheeling of the actuator until it reaches a certain Avoid position, as this particular position in the symmetrical Design over the adjustment of the control element seen several times is present. It is particularly advantageous if the adjustment of the actuating element from a starting position out in another, equivalent starting position ends.

For the manual adjustability of the shift lever, in particular in case of failure the symmetrical configuration of the control element of particular advantage. In In such a case, the actuator comes out in the middle of the adjustment a home position out, for example, by the failure of the engine, too stand. In a symmetrical embodiment of the actuating element can in principle here be provided by a manual adjustment of the shift lever the Adjust actuator in the "nearest" starting position.

In the known, previously explained motor vehicle door lock, of which the invention goes out, is a manual adjustment of the shift lever from the first in the second switching state and vice versa without adjustment of the actuating element possible in the initial position located actuator. The Control element is rotatable about an axis and a position of the actuating element the equivalent rotated position equivalent.

In the known motor vehicle door lock, the actuator has a slotted guide and the shift lever engaging in the slotted guide pin on. The slotted guide has one of the number of starting positions corresponding Number of slotted sections. Two scenes are each connected by a short, radially extending transverse section. In this cross section, the adjustment of the shift lever manually from the first in the second switching position and vice versa without adjustment of the actuating element respectively. Blocks the drive in a position in which the pin is just in one of the quarter-circular gate sections, so is a Manual adjustment of the lever is also possible, but more difficult. The pin can namely in the gate section due to its shape only be moved in one direction. Possibly. becomes the actually desired Switching state only over the initially not desired switching state and achieved a subsequent switching back in the radially extending transverse section.

The well-known motor vehicle door lock has, moreover, an additional Construction with a freewheeling element on. The freewheel element is with the Actuator connected by means of a freewheel connection. This makes it possible an adjustment of the shift lever manually and under adjustment of the actuating element although the drive itself is self-locking.

Starting from the known construction explained above, the teaching is the Problem underlying the motor vehicle door lock in such a way and further, that the manual adjustability of the shift lever with minimal movement and time is guaranteed.

The aforementioned problem is solved by a motor vehicle door lock according to the preamble of claim 1 with the features of the characterizing part of claim 1 solved.

The realization of a turning point between the gate sections makes it possible, on the shortest path into the really "closest" Starting position to arrive.

Preferred embodiments and further developments of the teaching explained above are the subject matter of claims 2 to 5.

At the starting point forming motor vehicle door lock is the previously explained, from the movement path ago consuming manual adjustment causally associated with it that the link sections also at the same time, namely on the radial extending transverse section, in each case the stops for the rotational movement of the Forming actuator. Here is another, independent solution of the previously discussed Problem to which is the subject of claim 6. A preferred Embodiment is described in claim 7.

According to another doctrine, which also has independent significance, is the actuator of a motor vehicle door lock as such, as described above claimed. Reference may be made to the above statements.

Fig. 1

ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Kraftfahrzeug-Türschlosses in einem ersten Schaltzustand, beispielsweise dem verriegelten Zustand,

Fig. 2

das Kraftfahrzeug-Türschloß aus Fig. 1 in einem Zwischenzustand vor Erreichen eines Wendepunkts,

Fig. 3

das Kraftfahrzeug-Türschloß aus Fig. 1 in einem zweiten Schaltzustand, beispielsweise dem entriegelten Zustand.

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

Fig. 1

A preferred embodiment of a motor vehicle door lock according to the invention in a first switching state, for example, the locked state,

Fig. 2

the motor vehicle door lock of Figure 1 in an intermediate state before reaching a turning point,

Fig. 3

the motor vehicle door lock of FIG. 1 in a second switching state, for example, the unlocked state.

The otherwise not shown motor vehicle door lock has the usual Locking elements such as lock latch and pawl and a lock mechanism with the central locking arrangement 1 on. For the design of an example such a motor vehicle door lock with respect to latch and Pawl and lock mechanism may on the above-mentioned US 5,649,726 A. Moreover, the same applies to the present construction a motor vehicle door lock the freewheel option, which is a self-locking Drive in conjunction with a non-self-locking gearbox allowed (US 5,649,726 A).

The central locking assembly 1 includes a drive and a shift lever 2, wherein the drive is not shown a motor and an actuator 3 has. The shift lever 2 is in different by the drive Switching states, in this case in the unlocked state and in the illustrated locked state, can be brought. It may also be that the shift lever 2 in several Switching states can be brought. For the adjustment of the shift lever 2 by the actuator, the actuator 3 can be brought into engagement with the shift lever 2, as shown below.

The control element 3 is configured symmetrically such that a switching state of the shift lever 2 at least two with respect to the action of the actuating element. 3 assigned to the shift lever 2 equivalent positions of the control element 3 are. In the present embodiment, this is realized in that a Position of the control element 3 has the same effect on the shift lever 2 as the rotated to this position by 180 ° position. Possible and interesting also a tripartite division with an angle of 120 °. The basic advantages Such a symmetrical design have been in the general part of the description explained.

In a preferred embodiment it is provided that the adjustment of the shift lever 2 by means of the control element 3 from a first switching state (Fig. 1) in one second switching state (Fig. 3), in this case of the locked (Fig. 1) in the unlocked state (Fig. 3), by the adjustment of the actuating element 3 from a Starting position out and that the actuator 3 at least two has equivalent starting positions. The drawing can be seen that the shift lever 2 from the illustrated locked state (Fig. 1) characterized can be adjusted, that the actuating element 3 from the initial position shown is turned out clockwise. As already explained above was, can be the same state by the 180 ° rotated actuator. 3 to reach.

According to a preferred embodiment comes after the motor adjustment of the shift lever 2 from the first switching state (FIG. 1) to the second switching state (Fig. 3) by the adjustment of the actuating element 3 from the starting position out the actuator 3 in a further, equivalent starting position to stand. This can for the further adjusting movements of the actuating element. 3 be particularly advantageous. For example, it can be provided that from this equivalent starting position out with a repeated adjustment movement of the actuating element 3, possibly in the same direction of actuation, the other Adjustment of the shift lever 2 takes place.

In the illustrated and so far preferred embodiment, it is such that the Control element 3 in an exclusively motorized adjustment of the shift lever 2 between the two equivalent starting positions is adjusted. Herewith results for the manual adjustment a very special advantage. It is Namely provided according to another preferred embodiment that a manual Adjustment of the shift lever 2 from the first to the second switching state and vice versa without adjustment of the actuating element 3 at least in the starting position befindlichem actuator 3 is possible. After the motor adjustment of the shift lever 2 from the first to the second switching state (Fig Fig. 3), in this case from the locked to the unlocked state, the Shift lever 2 are thus brought back manually into the first switching state, so that the shift lever 2 back in the initial state and the actuator 3 is in an equivalent starting position.

Fig. 1, 2 and 3 show that to perform a manual operation on Shift lever 2, a manual additional lever 2a is mounted on the same Swivel axis 2b as the shift lever 2 is mounted. An abutment buffer 2c lays the additional lever 2a in a direction opposite to the shift lever 2 fixed leaves but a deflection of the additional lever 2a relative to the shift lever 2 at a standstill Shift lever 2 against spring force if necessary. At the additional lever 2a is located hinged in an eyelet 2d a manual operation part 2e, here as a rod is executed. It can, for example, with a lock cylinder, not shown is to be connected. In any case, it allows the manual operation of the shift lever 2. In Fig. 3 it allows the return of the shift lever 2 by pivoting in a clockwise direction about the pivot axis 2b from the second switching state (FIG. 3) back to the first switching state (FIG. 1).

It can be summarized that in normal operation by the symmetrical Embodiment of the actuating element 3 of the first switching state Shift lever 2 - regardless of whether the shift lever 2 manually or by motor was brought there - by an adjustment of the control element 3 from a Starting position out in the second switching state (Fig. 3) is adjustable.

It is provided in a particularly preferred embodiment that the adjustment of the shift lever 2 from the first switching state (FIG. 1) to the second switching state (Fig. 3) by the adjustment of the actuating element 3 from the starting position done out with minimal initial freewheel. Hereby, in connection with the symmetrical configuration of the actuating element described above 3, it is achieved that the motorized adjustment of the shift lever 2 from first in the second switching state, regardless of whether the shift lever manually or motor was brought into the first switching state, in principle With minimal freewheel and thus with minimal expenditure of time is possible.

The proposed solution is not limited to specific structural designs limited. Although the following statements relate to a rotatable Actuator 3, however, are all known from the prior art constructive embodiments of actuators applicable. From the The prior art are, for example, cylindrical or drum-like Control elements known, which can also be designed accordingly.

In the illustrated embodiment, a position of the actuating element 3 is compared with this rotated by 180 ° position in the sense described above equivalent. Thus, the actuator 3 is in two symmetrical to each other Divide sections, each subsection sweeps 180 °. It can also be provided that a portion less than 180 °, preferably 90 ° sweeps. The geometric boundary condition here is that the entire Adjustment range of 360 ° by the angular amount of a portion divisible is.

There are numerous possibilities for constructive design of the procedure between actuator 3 and lever 2. One possibility is that Provide actuating element 3 on its front side with pins, based on the Axis 4 of the control element 3 at equal angular intervals on the control element 3 is arranged are. The shift lever 2 then has a fork-shaped formation o. Like., Which can be brought into engagement with the pin.

The illustrated in the drawing and so far preferred embodiment of Control element 3 shows a slotted guide 5, 6 on the end face of the actuating element 3 and a pin 7 on the shift lever 2, in the slide guide 5, the sixth intervenes.

To ensure the manual adjustment of the shift lever 2 described above To be able to, the slide guide 5, 6 has two link sections 5, 6 on which are connected closed. For manual adjustment of the shift lever 2 is normally the transition of the pin 7 from one to the other slotted guide 5, 6 provided, as will be explained below.

In the present case, it is provided that the two link sections 5, 6 in cross section of the actuating element 3, to the center of the actuating element 3, by the axis 4 of the adjusting element 3 extends, each other substantially point-symmetrical are formed. It may be noted that such a geometric symmetry for the realization of symmetry in the present Sense is not essential. In the present case, the symmetry is in Functionally speaking, in particular, that a switching state of the Shift lever 2 at least two equivalent positions of the control element 3 assigned are.

The slide guide 5, 6 shown in the drawing is so far special advantageous in that a manual adjustment of the shift lever 2 from a first (Fig. 1) in a second switching state (Fig. 3) without adjustment of the actuating element 3 is possible. The same applies to the manual adjustment of the shift lever from the second (Figure 3) to the first switching state (Figure 1). In detail can the shift lever 2, which is shown in Fig. 1 of the drawing in the first switching state, in the present case in the locked state, without adjustment of the Control element 3 in the second switching state, ie in the unlocked state (Fig. 3) adjust by the shift lever 2 just counterclockwise is pivoted. For this purpose, the slide guides 5, 6 corresponding formations on.

When located in the starting position actuator 3 and the first switching state located shift lever 2 is an edge 8, 9 of the slotted guide 5, 6th so located that an adjustment of the control element 3 with minimal freewheel an adjustment of the shift lever 2 causes. The associated benefits were explained above.

In particular, for the case of error offers the illustrated embodiment of the control element 3 special advantages. It is true that when not completed Adjusting movement of the actuating element 3, so for example after a failure of the engine during the adjustment of the shift lever 2 from the first to the second Condition, a manual reset of the shift lever 2 in the first switching state with simultaneous adjustment of the control element 3 in the starting position is possible. There are depending on the position of the actuator 3 two variants of the provision, which are to be distinguished.

In the first variant, the actuator 3 is in only a small extent from his Out position adjusted and the pin 7 has one of the slotted guide 5, 6 formed inflection point 10, 11 not yet reached. This position shows Fig. 2. Then the pin 7 remains in the respective gate section 5, 6th and runs back in this. Such a provision is in the present case a rotation of the shift lever 2 clockwise from Fig. 2 of FIG. 1 causes what turn to a rotation of the actuating element 3 in the starting position (Fig. 1) leads to the left.

The second variant of the reset occurs when the adjustment of the Shift lever 2 by the actuator 3 at the time of error entry already is well advanced and has passed the said turning point 10, 11. Then the pin 7 in the manual reset in the other of the two Guide sections 5, 6 transferred, so that the adjusting element 3 in accordance with the other of the two starting positions is brought (in a sense of Fig. 3 of FIG. 1).

The previously made statement regarding the operation of the motor vehicle door lock is technically synonymous with the fact that the contours of the gate sections 5, 6 and the relative position of the pin 7 and the pivot axis 2b of the shift lever 2 to the gate sections 5, 6 of the actuating element 3 a not self-locking coupling of the pin 7 with the slide guide 5, 6 of Actuated element 3 realized. The non-self-locking coupling is by appropriate Angle between the walls of the gate sections 5, 6 based realized on the connecting line pin 7 / pivot axis 2b.

It can be summarized that the symmetrical design of the Control element 3 ensures the manual adjustability of the shift lever 2 is, without the subsequent motor adjustment of the shift lever 2 in any Way to affect.

In order for the central locking device 1 described also a block operation to allow, it is provided in a preferred embodiment that the Control element 3, a first stop 12 and a second stop 13 and the Shift lever 2, a first counter-stop 14 and a second counter-stop 15 has. In the adjustment of the actuating element 3 from that in Fig. 1 of the drawing shown starting position right around the shift lever is the second in its second switching state (Fig. 3) adjusted, so that the first counter-stop 14 comes in the trajectory of the first stop 12 (Fig. 3). Corresponding the adjustment movement of the actuating element 3 is blocked and the drive is switched off. In the subsequent adjustment of the control element 3 on the left (von Fig. 3 of FIG. 1), the shift lever 2 from the second to the first switching state adjusted. In this case, the second counter-stop 15 comes into the movement path of the second stop 13, so that in turn the adjustment of the Control element 3 blocks and the drive is switched off (Fig. 1).

With regard to the block operation described above may be noted be that the shift lever 2 exclusively via its counter-attacks 14, 15th can come into contact with the stops 12, 13 of the actuating element 3 and thus the actuator 3 blocked. Is there a counter-attack 14; 15 outside the trajectory of the corresponding stop 12; 13, so this one is Stop 12; 13 free from the shift lever 2 and can be particularly - by the corresponding adjustment of the actuating element 3 - move past the shift lever 2.

The symmetry of the actuating element 3 extends to the attacks described 12, 13 and counter-stops 14, 15, so that in the illustrated and insofar preferred embodiment of the actuator 3 arranged stops 12, 13 are each provided in duplicate, wherein the respective corresponding Stops each other preferably designed substantially point-symmetrical are.

Interestingly, the arrangement of the stops 12, 13 on the actuator 3. This is namely not arbitrary. They are in the illustrated and preferred embodiment radially relatively far, preferably arranged as far outboard as possible. This results in a large lever arm for the stops 12, 13 with respect the axis 4 of the control element 3. The braking effect is optimized.

Another teaching relates to the adjustment of the shift lever 2 by means of the actuating element 3 from a first switching state to a second switching state an adjustment of the actuating element 3 from an initial position, wherein Here, in particular, the moment shortly after the beginning of the adjustment of the Stellelements 3 is of interest.

It is essential, according to the above further teaching, the fact that a minimum Adjustment of the control element 3 from the initial position already a Adjustment of the shift lever 2 causes. By the displaced shift lever 2 is it is possible in principle, the minimally adjusted control element 3 by a manual Manually reset the lever 2 when the engine is off. For this purpose, a corresponding coupling between the motor and actuator 3 and a corresponding coupling of the actuating element 3 with the To provide shift lever 2. This preferred embodiment ensures that as well with minimal adjustment of the actuating element 3 by a manual reset the shift lever 2 is possible.

Fig. 1 can still be seen that at the bottom of here as a drive pulley executed actuating element 3, also formed symmetrically and on the outer circumference or arranged close to the outer circumference, two actuating scenes 16 are provided. These serve to actuate a right in Fig. 1 indicated, lying in the lower level and on the pivot axis 2b of the shift lever 2 pivotally mounted release lever 17. In the transition from Fig. 1 to Fig. 2 shows the displacement of the release lever 17 by the Betätigungskulisse 16, just passing by. With this construction you can For example, realize a control of a corresponding microswitch or actuate another lever chain or other mechanical arrangement.

The solutions described above are applicable to all types of drives in Motor vehicle door locks applicable. In addition to the central locking drive may be mentioned here as an example of the opening auxiliary drive.

Finally, it should be pointed out that according to another teaching, which also has independent significance, the actuator 3 as such claimed for a motor vehicle door lock. For this may on the above Referred to.

Claims (9)

Motor vehicle door lock with a lock mechanism, wherein the lock mechanism has a drive and a shift lever (2), wherein the drive comprises a motor and an actuating element (3), wherein the shift lever (2) can be brought by the drive in various switching states and wherein Actuating element (3) for this with the shift lever (2) is engaged and reversibly driven, wherein further the adjusting element (3) is designed symmetrically such that a switching state of the shift lever (2) at least two with respect to the action of the adjusting element (3) the shift lever (2) equivalent positions of the control element (3) are assigned and finally the adjustment of the shift lever (2) by means of the control element (3) from a first switching state to a second switching state by the adjustment of the control element (3) from an initial position takes place and the adjusting element (3) has at least two equivalent starting positions, wherein the white Teren the actuator (3) has a slotted guide (5,6) and the shift lever (2) in the slotted guide (5,6) engaging pin (7) and the slotted guide (5,6) a number of starting positions corresponding number of Having gate sections (5,6) which are connected together closed,
characterized in that when the adjusting movement of the adjusting element (3) is not completed for the adjustment of the switching lever (2) from the first to the second switching state, that is in an intermediate position (3),
a manual reset of the shift lever (2) in the first switching state depending on the progress of the adjusting movement of the actuating element (3), a) this side of a turning point (10; 11) causes the stay of the pin (7) in the first link section (5; 6) and the provision of the actuating element (3) in the starting position causes or b) on the other side of the inflection point (10; 11) causes the transfer of the pin (7) in the other of the two sliding sections (5,6) and an adjustment of the control element (3) in the other of the two starting positions. Motor vehicle door lock according to claim 1, characterized in that the contours of the link sections (5, 6) and the relative position of the pin (7) and the pivot axis (2b) of the shift lever (2) to the gate sections (5, 6) of the actuating element ( 3) realized a non-self-locking coupling of the pin (7) with the slotted guide (5, 6) of the actuating element (3). Motor vehicle door lock according to one of the preceding claims, characterized in that the adjusting element (3) is designed such that the adjustment of the switching lever (2) from the first switching state to the second switching state by the adjustment of the actuating element (3) from the starting position with minimal initial freewheel. Motor vehicle door lock according to one of the preceding claims, characterized in that , viewed in the direction perpendicular to the axis (4) of the adjusting element (3), the two sliding section (3) extends through the adjusting element (3) towards the center of the adjusting element (3) are designed substantially point-symmetrical. Motor vehicle door lock according to one of the preceding claims, characterized in that a minimal adjustment of the actuating element (3) from the initial position already causes an adjustment of the shift lever (2) and that in dependence on the configuration of the coupling between the motor and the actuating element (3). the engagement of the actuating element (3) with the shift lever (2) is made so that when the engine is switched off, the minimally adjusted adjusting element (3) can be manually reset by manually actuating the shift lever (2). Motor vehicle door lock with a lock mechanism, wherein the lock mechanism has a drive and a shift lever (2), wherein the drive comprises a motor and an actuating element (3), wherein the shift lever (2) can be brought by the drive in various switching states and wherein Actuating element (3) for this purpose with the shift lever (2) engageable and reversibly driven, further wherein the actuating element (3) is configured symmetrically such that a switching state of the shift lever (2) at least two with respect to the action of the actuating element (3) the shift lever (2) equivalent positions of the control element (3) are assigned, and finally the adjustment of the shift lever (2) by means of the control element (3) from a first switching state to a second switching state by the adjustment of the control element (3) from an initial position takes place and the adjusting element (3) has at least two equivalent starting positions, wherein the Further, the adjusting element (3) has a slotted guide (5,6) and the shift lever (2) in the slotted guide (5,6) engaging pin (7) and the slotted guide (5,6) a number of starting positions corresponding number of Sliding sections (5,6) which are connected together, in particular according to one of the preceding claims,
characterized in that the actuating element (3) a first stop (12) and a second stop (13) and the shift lever (2) has a first counter-stop (14) and a second counter-stop (15) and that after an adjustment of the shift lever ( 2) by the corresponding adjustment of the actuating element (3) of the first stop (12) or possibly the second stop (13) with the first counter-stop (14) or possibly the second counter-stop (15) comes into abutment and the adjusting movement of the actuating element (3) blocked. Motor vehicle door lock according to Claim 6, characterized in that the stops (12, 13) on the adjusting element (3) lie radially on the outside, preferably as far as possible on the outside. Control element for a motor vehicle door lock, in particular according to one of the preceding claims,
wherein the actuating element (3) coupled in the installed state with a motor and is part of a drive and with a shift lever (2) is engaged, so that the shift lever (2) by the drive via the control element (3) can be brought into various switching states .
wherein the adjusting element (3) has a sliding guide (5, 6) and the slide guide (5, 6) has a number of starting positions corresponding number of slide sections (5, 6) which are connected to each other closed,
characterized in that the link sections (5, 6) of the adjusting element (3) each have a turning point (10; 11). Control element according to claim 8, characterized in that the adjusting element (3) has a first stop (12) and a second stop (13) and the stops (12, 13) radially outward on the adjusting element (3), preferably as far as possible outside lie.

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