EP2166181A2 - Control drive for a vehicle lock - Google Patents

Abstract

The control drive has a locking mechanism (3), which is brought in mounting condition in different function conditions, such as unlocking, locking, theft safety or child safety by the control drive. An adjustment element (5) is blocked in a central position and a deflecting position. The blocking element (7) is brought into a central blocking position and into a deflecting blocking position.

Description

The invention relates to a control drive for a motor vehicle lock according to the preamble of claim 1.

The control in question is associated with a motor vehicle lock, which finds application in all types of closure elements of a motor vehicle. These include in particular side doors, rear doors, tailgates, trunk lids or hoods. These closure elements can basically be designed in the manner of sliding doors.

The known control drive ( DE 102 58 645 A1 ), from which the invention proceeds, is associated with a motor vehicle lock with the closing elements latch and pawl. The latch is in the usual way in an open position, in a main closed position and in a prelocking brought. The pawl has the task to hold the latch in the two closed positions. To release the latch, the pawl can be lifted manually.

In the above motor vehicle lock, the manual lifting of the pawl is provided in the context of the realization of a mechanical redundancy. This means that the pawl is normally lifted by a motor, and only in case of emergency, for example, in case of power failure, is manually raised.

The above motor vehicle lock is also associated with a lock mechanism that can be switched to different functional states. These are the functional states "unlocked", "locked", "theft-proof" and "child-proof". In the functional state "unlocked", the associated motor vehicle door can be opened by actuating the inside door handle and the outside door handle. In the functional state "locked" can not be opened from the outside, but from the inside, in the functional state "theft-proof" can be opened neither from the outside nor from the inside. In the functional state "child-proof" can be opened from the outside, but not from the inside.

To realize the above functional states, the lock mechanism is equipped with a functional element that can be adjusted to corresponding functional positions. The control drive is used to adjust this functional element.

The known control drive has a motor pivotable about a pivot axis adjusting element, which can be brought into corresponding control positions. In this case, the actuator is in any case in the respect to a pivoting movement of the actuating element successive positions initial position, center position and deflection position can be brought.

For starting the middle position in block operation, a motor is pivotable about a pivot axis blocking element is provided. The middle position is assigned here to the functional state "child-proof". A disadvantage of the known control drive is the fact that the center position, which here corresponds to the functional state "child-proof", exclusively from the starting position, which corresponds to the functional state "unlocked", can be approached. This operating behavior of the control drive can be problematic with regard to the control of the drive components associated with the control drive.

The invention is based on the problem, the known control drive in such a way and further develop that its performance is optimized.

The above problem is solved in a control drive according to the preamble of claim 1 by the features of the characterizing part of claim 1.

It is essential first of all the consideration that the actuating element can be blocked by means of the blocking element not only in the middle position but also in the deflection position. Thus, the blocking element is blocking not only in the center position, but also in the deflection engaged with the actuator.

The proposed solution opens up new degrees of freedom in the design of the control drive.

In the particularly preferred embodiment according to claim 2, the proposed solution is used to realize in a simple manner, the motorized adjustment of the actuating element from the deflection position out into the middle position. It is envisaged that an adjustment of the blocking element of the Auslenk-blocking position in the central blocking position causes an adjustment of the actuating element of the deflection position in the middle position.

This can be structurally simply realized by the further preferred embodiment according to claim 4, characterized in that the actuator has an open in relation to the actuator axis radial direction, mouth-like shape into which the blocking element runs when approaching the deflection position and with the blocking element when reaching the Deflection in blocking engagement comes.

When adjusting the blocking element of the Auslenk-blocking position in the middle blocking position, the blocking element rotates according to claim 5 out of the mouth-like shape and thereby displaces the actuator in the above manner in the center position.

In the preferred embodiment according to claim 10, the actuating element is designed as a control shaft. Such a configuration is the subject of German patent application 10 2008 018 500.0, which is due to the applicant and is hereby made in full scope to the subject of this application.

In the particularly preferred embodiment according to claim 12, an electrical component carrier for receiving the motor components of the control drive is provided, which is encapsulated with respect to the motor vehicle lock in the rest except for mechanical drive connections, in particular for the drive of the actuating element, necessary openings. By the term "encapsulated" herein is meant only a first protection against water and dust entry. A seal is advantageous, but not necessarily provided.

Fig. 1

ein Kraftfahrzeugschloß mit einem vorschlagsgemäßen Steuerantrieb mit den für die Erläuterung der Erfindung wesentlichen Komponenten in einer Draufsicht im Funktionszustand "Verriegelt",

Fig. 2

das Kraftfahrzeugschloß gemäß Fig. 1 in einer perspektivischen Darstellung im Funktionszustand "Entriegelt",

Fig. 3

das Kraftfahrzeugschloß gemäß Fig. 2 im Funktionszustand "Verriegelt",

Fig. 4

das Kraftfahrzeugschloß gemäß Fig. 2 im Funktionszustand "Diebstahlgesichert",

Fig. 5

ein Kraftfahrzeugschloß mit einem weiteren vorschlagsgemäßen Steuerantrieb ohne Deckel des Elektrokomponententrägers in einer Draufsicht,

Fig. 6

das Kraftfahrzeugschloß gemäß Fig. 5 mit montiertem Deckel des Elektrokomponententrägers in einer Draufsicht und

Fig. 7

das Kraftfahrzeugschloß gemäß Fig. 5 ohne Deckel des Elektrokomponententrägers in einer perspektivischen Ansicht.

In the following the invention will be explained in more detail with reference to embodiments. In the drawing shows

Fig. 1

a motor vehicle lock with a proposed control drive with the essential components for the explanation of the invention in a plan view in the functional state "locked",

Fig. 2

the motor vehicle lock according to Fig. 1 in a perspective view in the functional state "unlocked",

Fig. 3

the motor vehicle lock according to Fig. 2 in the functional state "locked",

Fig. 4

the motor vehicle lock according to Fig. 2 in the functional state "theft-proof",

Fig. 5

a motor vehicle lock with a further proposed control drive without cover of the electrical component carrier in a plan view,

Fig. 6

the motor vehicle lock according to Fig. 5 with mounted lid of the electrical component carrier in a plan view and

Fig. 7

the motor vehicle lock according to Fig. 5 without cover of the electrical component carrier in a perspective view.

It may be noted in advance that only the components of the proposed control drive or the associated motor vehicle lock are shown in the drawing, which are necessary for the explanation of the teaching. Accordingly, the outside operating lever is in Fig. 1 not shown.

It should also be noted that this is included in the Fig. 1 to 4 shown motor vehicle lock follows the same functional principle as that in the Fig. 5 to 7 illustrated motor vehicle lock. Ultimately, it is in the in the Fig. 5 to 7 shown motor vehicle lock to an auskonstruierte variant of the in the Fig. 1 to 4 only rudimentary illustrated motor vehicle lock.

The motor vehicle locks shown in the drawing are each equipped with the usual closing elements latch 1 and pawl 2 and a lock mechanism 3.

The lock mechanism 3 can be brought into the usual functional states "unlocked", "locked", "theft-proof" and "child-proof". It is conceivable, of course, that the lock mechanism 3 can only be brought into the functional states "unlocked" and "locked". In this case, the adjustment of the lock mechanism 3 by means of the control drive.

The control drive has a pivotable about a pivot axis 4 adjusting element 5, which can be brought into corresponding control positions. Each control position of the actuating element 5 corresponds to a functional state of the lock mechanism. 3

The adjusting element 5 can be brought into an initial position, into a middle position and into an articulation position, the center position being situated between the initial position and the deflecting position relative to a pivoting movement. In order to enable start-up of control positions in block mode, a blocking element 7, which is pivotable by a motor about a pivot axis 6, is provided.

The adjusting element 5 can be based on the starting position ( Fig. 2 ) by means of the blocking element 7 in the middle position ( Fig. 3 ) and the deflection position ( Fig. 4 ) To block. For this purpose, the blocking element 7 is correspondingly in a middle blocking position ( Fig. 3 ) and in a deflection blocking position ( Fig. 4 ) brought.

The blocking element 7 thus comes in both the start-up of the center position and when starting the deflection position of the actuating element 5 in blocking engagement with the actuating element. 5

In a particularly preferred embodiment, it is provided that an adjustment of the blocking element 7 causes from the deflection blocking position in the center blocking position, an adjustment of the actuating element 5 from the deflection position in the middle position. This corresponds in this case to a transition from the in Fig. 4 presented situation on the in Fig. 3 illustrated situation.

In order to realize the provision of the actuating element 5 of the deflection position in the center position, it is necessary that at least the actuator 5 associated drive train is not designed to be self-locking. Otherwise, the actuator 5 would block the provision accordingly.

Alternatively or additionally, it may also be provided that the drive train assigned to the blocking element 7 is not designed to be self-locking. Thus, it is conceivable in an advantageous manner that the actuator 5 from the in Fig. 4 shown deflection position out in the in Fig. 2 illustrated initial position can be transferred, which simultaneously leads to a transfer of the blocking element 7 of the Auslenk-blocking position in the middle blocking position.

The above, not self-locking design of the actuator 5 associated drive train still leads to a further interesting effect. From the middle position, the adjusting element 5 can in principle be adjusted by the blocking element 7 into the deflection position. This mode of operation leads to a particularly simple control of the control unit.

The above-explained interaction between blocking element 7 and adjusting element 5 can be achieved by a special embodiment of the blocking element 7 on the one hand and the adjusting element 5 on the other hand, which ensures a certain "gearing" between these two elements 7, 5.

In the illustrated and insofar preferred embodiments, the actuating element 5 has an open in relation to the actuator axis 4 radial direction, mouth-like shape 8, in which the blocking element 7 runs when approaching the deflection position and with the blocking element 7 when reaching the deflection position in blocking engagement comes ( Fig. 4 ).

It can be a synopsis of Fig. 4 and 3 can be seen that the blocking element 7 in its displacement from the Auslenk-blocking position ( Fig. 4 ) in the middle blocking position ( Fig. 3 ) Turns out of the mouth-like shape while adjusting the actuator 5 in the middle position.

Here and preferably, the adjusting element 5 is provided on the edge of the mouth-like formation 8 with a blocking surface 9, which comes when starting the center position - out of the starting position - in blocking engagement with the blocking element 7.

Here and preferably, it is further such that the blocking element 7 is designed to be elongate and is pivotable about a pivot axis 6 arranged transversely to its longitudinal extent. The pivot axes 4, 6 of the actuating element 5 and the blocking element 7 are aligned parallel to each other.

Interesting is the fact that the blocking element 7 remains at an adjustment of the actuating element 5 from the center position to the starting position in its central blocking position and preferably slides on a relative to the pivot axis 4 of the actuating element 5 radial back surface 10 of the actuating element 5 along.

In a preferred embodiment, both the blocking element 7 and the adjusting element 5 each have a drive motor 11, 12 associated with the drive shafts 11a, 12a of the two drive motors 11, 12 are aligned parallel to each other. This is where in the Fig. 5 to 7 illustrated embodiment of the case. Here and preferably, it is further such that the two drive motors 11, 12 are arranged directly adjacent to each other, which leads to a particularly compact overall design.

For the configuration of the actuating element 5 numerous advantageous variants are conceivable. In a particularly preferred embodiment, the adjusting element 5 is designed as a control shaft, wherein, preferably, the control shaft 5 extends with its control shaft axis 4 along the flat side 13 of the motor vehicle lock. If the motor vehicle lock extends along two flat sides, which enclose an angle with each other, it is provided here that the control shaft 5 extends with its control shaft axis 4 along the flat side of the control shaft 4 receiving portion of the motor vehicle lock.

The above alignment of the control shaft 5 leads to a simple and particularly compact design.

In the sense of the best possible shielding of the motor components 11, 12 of the control drive, an electric component carrier 14 for receiving these motor components 11, 12 is preferably provided. The electrical component carrier 14 is in relation to the motor vehicle lock in the rest or against the control drive in the rest except for mechanical drive connections, in particular for the drive of the actuating element 5, necessary openings encapsulated. The present broad understanding of the term "encapsulated" has already been mentioned above.

When presented in the Fig. 5 and 7 the electric component carrier 14 is shown without cover 14a. This lid 14 a can be from above, as in Fig. 6 shown, touch down. Here, and preferably, the lid 14a seals along a sealing line 15. In a particularly preferred embodiment, the lid 14a is adhesively bonded to the electrical component carrier 14 along the sealing line 15. In principle, however, the lid 14a can also be pressed on, clipped on, or the like.

For the adjustment of the lock mechanism 3 in the various functional states, the lock mechanism 3 is equipped with at least one adjustable functional element 16 which is adjustable in corresponding functional positions. For adjusting the at least one functional element 16 and thus for setting various functional states of the lock mechanism 3, the proposed control drive is used.

A particularly well matched to the proposed implementation of the control shaft 5 variant provides that at least one functional element 16 is designed as a resilient bendable wire or strip and as a bending-functional element is elastically bendable in different functional positions. In the Fig. 2 and 3 two functional positions still to be explained are shown. A synopsis of Fig. 2 and 3 shows that the adjustment of the functional element 5 is due to a resilient bending of the same. This effect and the triggering of this adjustment will be explained in detail below. In a particularly preferred embodiment, it is such that the control shaft 5 associated functional element 16 on the control shaft 5, in particular on a control cam 5a of the control shaft 5, is supported, so that by an adjustment of the control shaft 5, the functional element 16 is deflected.

For the manual lifting of the pawl 2, the lock mechanism 3 is equipped with a pivotable external actuating lever 17 and possibly with a pivotable internal operating lever 18. The actuation of these two levers 17, 18 is connected depending on the lock state with a lifting of the pawl 2 or just with a Leerhub. These relationships have been explained in the introductory part of the description.

In the illustrated and insofar preferred embodiments, the functional element 16 itself provides a switchable coupling between the external actuating lever 14 and the internal actuating lever 18 on the one hand and the pawl 2 on the other hand. For this purpose, it is preferably provided that the pawl 2 or coupled to the pawl 2 lever has a pawl-Mitnehmerkontur 19, wherein further preferably the outer actuating lever 17 or coupled to the outer actuating lever 17 lever has an external actuating cam follower 20. The arrangement is made in the illustrated embodiments so that when in the functional position "unlocked" befindlichem functional element 16 of the external actuating lever 17 via the external actuating driver contour 20, the functional element 16 and the pawl-driver contour 19 is coupled to the pawl 2. This functional position is in Fig. 2 to recognize.

Furthermore, it is preferably provided that in the functional state "locked" the functional element 16 is in any case out of engagement of the external actuating driver contour 20, so that the external actuating lever 17 is decoupled from the pawl 2. The functional position "locked" is in Fig. 3 shown.

It can be the representation in Fig. 2 It can be seen that a pivoting of the outer actuating lever 17 from the top leads to the right that causes the Außenbetätigungs driver contour 20 engages the functional element 16 and exerts a force on the functional element 16 perpendicular to the extension direction of the functional element 16 at the engagement point. This results in that the functional element 16 acts on the pawl driving cam 19, so that the pawl 2 adjusted, dug out here, is.

In the illustrated embodiments, in addition to the external operating lever 17, an internal operating lever 18 is additionally provided. Accordingly, it is additionally preferably provided that the inner operating lever 18 or a lever coupled to the inner operating lever 18 has an inner operating driver contour 21. Here, in the functional position "unlocked" befindlichem functional element 16 of the inner actuating lever 18 via the inner actuating driver contour 21, the functional element 16 and the pawl-driver contour 19 is coupled to the pawl 2. The pawl 2 can therefore be lifted on the inner operating lever 18.

It may be pointed out that in the in the Fig. 5 to 7 illustrated and so far preferred embodiment of the electric component carrier 14, the blocking element 7 and the existing here, mouth-like shape 8 receives. This leads to a particularly compact and at the same time robust design.

Claims (13)

Control drive for a motor vehicle lock, wherein the motor vehicle lock with the closing elements lock catch (1) and pawl (2) and with a lock mechanism (3) is equipped, wherein the lock mechanism (3) in the assembled state in various functional states such as "unlocked", "locked" , "Theft-proof" or "child-proof" means of the control drive can be brought and wherein the control drive has a motor pivotable about a pivot axis (4) actuator (5) which can be brought into corresponding control positions, wherein the adjusting element (5) in terms of a pivoting movement the actuating element (5) successive positions starting position, middle position and deflection position can be brought and is provided for starting from at least one position of the actuating element (5) in block mode a motor pivotable about a pivot axis blocking element (7),
characterized,
that the actuating element (5) starting from the starting position by means of the blocking element (7) can be blocked in the middle position and the deflection position and that the blocking element (7) for this purpose can be brought into a center-blocking position and into a Auslenk-blocking position. Control drive according to Claim 1, characterized in that an adjustment of the blocking element (7) from the deflecting blocking position into the central blocking position effects an adjustment of the adjusting element (5) from the deflecting position into the middle position. Control drive according to claim 1 or 2, characterized in that the the adjusting element (5) associated with the drive train and / or the blocking element (7) associated with the drive train is designed self-locking and are. Control drive according to one of the preceding claims, characterized in that the adjusting element (5) has a mouth-like formation (8) which is open in the radial direction and into which the blocking element (7) runs when approaching the deflection position and with which the blocking element (7) Reaching the deflection position comes in blocking engagement. Control drive according to one of the preceding claims, characterized in that the blocking element (7) during its displacement from the deflecting blocking position into the center blocking position turns out of the mouth-like formation (8) and thereby displaces the adjusting element (5) into the middle position. Control drive according to one of the preceding claims, characterized in that the adjusting element (5) at the edge of the mouth-like formation (8) has a blocking surface (9) which comes into blocking engagement with the blocking element (7) when the center position is approached. Control drive according to one of the preceding claims, characterized in that the blocking element (7) is elongated and can be pivoted about a pivot axis (6) arranged transversely to its longitudinal extent. Control drive according to one of the preceding claims, characterized in that the pivot axis (6) of the blocking element (7) and of the adjusting element (5) are aligned parallel to one another. Control drive according to one of the preceding claims, characterized in that the blocking element (7) and the adjusting element (5) each have a drive motor (11, 12) are associated and that the drive shafts (11a, 12a) of the two drive motors (11, 12) to each other are aligned parallel, preferably, that the two drive motors (11, 12) are arranged directly next to each other. Control drive according to one of the preceding claims, characterized in that the basic position of the actuating element (5) "unlocks" the lock state, the middle position "locks" the lock state and the deflection position corresponds to the lock state "anti-theft". Control drive according to one of the preceding claims, characterized in that the adjusting element (5) is designed as a control shaft and that the control shaft (5) with its control shaft axis (4) along the flat side (13) of the motor vehicle lock or along the flat side (13). of the control shaft (5) receiving portion of the motor vehicle lock extends. Control drive according to one of the preceding claims, characterized in that an electrical component carrier (14) for receiving the motor components (11, 12) of the control drive is provided, which in relation to the motor vehicle lock in the rest except for mechanical drive connections, in particular for the drive of the actuating element ( 5), necessary openings is encapsulated. Control drive according to claim 12, characterized in that the electrical component carrier (14) accommodates the blocking element (7) and the optionally present mouth-like formation (8).

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