EP1288408B1 - Motor vehicle door lock - Google Patents

Description

The invention relates to a motor vehicle door lock, comprising a locking mechanism, at least one locking lever, preferably central locking lever, at least one motor drive, and with a quick release lever associated with the locking lever, wherein the locking mechanism is connected to the locking lever via the quick release lever, and wherein the quick release lever is substantially independent from the position of the locking lever - releases the locking in the course of the Schnellentrie-gelung with the help of the drive.

The motor drive usually ensures that the central locking lever is in its "locked" or "unlocked" positions convertible. Basically, with the central locking lever (or independently thereof) represent another position in the sense of "theft-proof". The quick release lever supports the process of so-called quick release. Such a quick release usually takes place when so-called "keyless entry" systems are used.

In such devices, a vehicle user carries an identification device (eg code card) with him, as approaching the vehicle user to the vehicle or when operating the outside door operation (door handle) a dialogue between the vehicle and the aforementioned identification device is initiated. In the course of this dialogue, the access authorization of the vehicle user wishing to enter is checked. If a corresponding authorization has been established, sends the dialog initiating and monitoring electrical control unit associated signals to at least one of the door locks the motor vehicle, which then motorized, as it were automatically opened or unlocked by means of actuators becomes. Such a motor vehicle door lock is in the context of DE 38 20 248 C2 described.

In the event that a door lock is equipped with such a keyless entry system, the requirement arises, especially with additional use of an anti-theft device, the time duration from the initiation of the opening process to adjust the opening ability of the equipped with the door locks motor vehicle doors as low as possible. Otherwise comfort restrictions must be feared.

It is therefore necessary, as it were immediately after initiation of the opening procedure and positive examination of the authorization of the vehicle user to transfer the locking mechanism into the state "unlocked", so that the operator can open an associated motor vehicle door without delay.

To realize this quick release, beats the WO 01/33017 A1 a locking lever engaged with the locking lever or central locking lever as a quick-release lever. This locking lever is separated by means of the motor drive in the course of the quick release of the locking lever, so that the locking lever can be converted into its unlocked position.

A motor vehicle door lock according to the preamble of claim 1 is in the EP 0 989 266 A1 described. This is an automatic unlocking when opening with reduced energy and improved mechanical design.

The measures described have basically proven, however, require that, for example, the locking lever actively or passively occupies the unlocked position in the course of the quick release. This may then lead to delays when the locking lever or central locking lever must move a connected complex lever mechanism during this process. - Here the invention wants to remedy the situation.

The invention is based on the technical problem of further developing a generic motor vehicle door lock so that a quick release succeeds, without the locking lever or central locking lever necessarily being involved.

To solve this problem, the invention proposes in a generic motor vehicle door lock that the quick release lever is designed as a pivotally connected to the locking lever Einarmhebel and with the help of a Gesperreauslegers a clutch lever for locking the locking raises and lowers its release.

According to the locking mechanism is therefore not (more) connected to the locking lever designed mostly as a central locking lever. Rather, the intermediary Schnellentriegelungshebel provides as it were for a decoupling between locking mechanism and locking lever. This decoupling can be in an advantageous development of the invention now use with the help of the drive so that the quick release lever with the locking lever at least in its "locking position" non-positively (and / or positive) is coupled, but otherwise releases the locking mechanism (in the quick release) , and immediately and practically without delay.

In the locking position of the locking lever form quick release lever and locking lever as it were a unit, so that the connected to the quick release lever locking reliably assumes the position "locked". On the other hand, the drive releases the quick-release lever as soon as the obligatory control device sends a command for quick release to the motor drive.

This is accomplished in detail so that according to the invention the quick release lever is designed as a pivotally connected to the locking lever Einarmhebel. According to the invention, the quick-release lever lifts the clutch lever to lock the locking mechanism with the aid of the locking device. This happens when the locking lever assumes the position "locked" and in this "locking position" is non-positively (and / or positively locked) coupled to the quick release lever.

In the course of the quick release or unlocking in general, however, the respective clutch lever is lowered according to the invention and the locking unlocked. This raising and lowering of the clutch lever has the consequence that a release lever with a raised clutch lever relative to the pawl of the locking performs a no-lift. If, however, the clutch lever is lowered, the release lever can act directly on the pawl to the opening of the rotary latch.

The motor drive usually has a quick release pin, which applies the quick release lever in the locking position of the locking lever to this and releases the quick release of the locking lever. This quick-release pin is a double cam arranged on the front of an axle of an output disk. - As a rule, already sufficient pivoting movements of only about 5 ° to 90 ° of the double cam to release the quick release lever in the course of the quick release.

The driven pulley is usually driven by an electric motor with output shaft and worm wheel and serves primarily - as is well known - for adjusting the locking lever or central locking lever at least in the positions "unlocked" and "locked". Of course, a position "anti-theft" can be realized in this way. For this purpose, the driven pulley on the back has one or two control pins which dip into a fork recess of the locking lever or central locking lever to pivot it.

In addition to the locking lever or central locking lever an internal locking lever is still provided. Both levers can form a unit. Usually, however, two different components are provided which rotate about a common axis and engage positively and / or positively in one another. In this way, it is ensured that the inside lock lever can act directly on the central locking lever, for example when the position "unlocked" is desired. This may possibly in the course of a "double stroke" with the help of a Be implemented inside actuating lever. The first stroke of the internal operating lever transfers the internal locking lever and thus the cooperating central locking lever to the "unlocked" position. The second stroke ensures that the unlocked in this way locking mechanism is opened by means of the release lever.

Fig. 1

ein Ausführungsbeispiel des Kraftfahrzeugtürverschlusses in der Stellung "verriegelt",

Fig. 2

den Gegenstand nach Fig. 1 in der Position "entriegelt",

Fig. 3

den Kraftfahrzeugtürverschluss nach den Fig. 1 und 2 im Zuge einer Schnellentriegelung,

Fig. 4a und 4b

Details des Gesperres,

Fig. 5

eine Einzelansicht des kombinierten Aggregates aus Zentralverriegelungshebel und Innenverriegelungshebel,

Fig. 6

den Schnellentriegelungshebel im Detail,

Fig. 7

ein nicht zur Erfindung gehöriges Beispiel mit ihren wesentlichen Bauteilen und

Fig. 8 bis 10

Einzelteile des Kraftfahrzeugtürverschlusses nach Fig. 7 bei geschlossener Drehfalle (Fig. 8) bzw. in der Stellung "verriegelt" und offener Drehfalle (Fig. 9) bzw. in der Position "entriegelt" sowie in Einzeldarstellung (Fig. 10).

In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment; show it:

Fig. 1

an embodiment of the motor vehicle door lock in the "locked" position,

Fig. 2

the object after Fig. 1 in the position "unlocked",

Fig. 3

the motor vehicle door lock after the Fig. 1 and 2 in the course of a quick release,

Fig. 4a and 4b

Details of the locking mechanism,

Fig. 5

a single view of the combined aggregate of central locking lever and inner locking lever,

Fig. 6

the quick release lever in detail,

Fig. 7

an example not belonging to the invention with its essential components and

Fig. 8 to 10

Parts of the motor vehicle door lock after Fig. 7 when the catch is closed ( Fig. 8 ) or in the position "locked" and open catch ( Fig. 9 ) or in the "unlocked" position as well as in individual Fig. 10 ).

In the figures, a motor vehicle door lock is shown, which is equipped with a conventional locking mechanism of catch 1 and pawl 2. In the Fig. 1 . 2 and 7 and 8, the locking mechanism 1, 2 is merely indicated, while the Fig. 4a, 4b Show details.

The locking mechanism 1, 2 is composed of a rotary latch 1 and a pawl 2. In addition, a release lever 3 is still provided, which lifts the pawl 2. However, this only happens when a clutch lever 4 in its lowered position according to Fig. 4b or in the solid line after Fig. 7 is located (unlocking position). Because in this case a guided on a backdrop coupling pin 5 is also lowered and engages in a recess 6 in the release lever 3 so that the coupling pin 5 beats in a pivoting movement of the release lever 3 in the direction of arrow against a stop 7 of the pawl 2, the logical one Performs rotary movement in a clockwise direction, so that the rotary latch 1 opens spring-assisted.

However, the clutch lever 4 takes its raised position according to Fig. 4a or in accordance with the dot-dashed line in Fig. 7 a (locking position), the coupling pin 5 is free from the stop 7 on the pawl 2, so that corresponding opening movements of the release lever 3 in a clockwise direction cause the coupling pin 5 dodges into a recess 8 of the pawl 2. The locking mechanism 1, 2 can not be opened in this case.

The raised position of the clutch lever 4 ( Fig. 4a ; dash-dotted in Fig. 7 ) corresponds to the "locking position" of the motor vehicle door lock, while the lowered position of the clutch lever 4 ( Fig. 4b ; pulled through in Fig. 7 ) symbolizes the position "unlocked".

In order to be able to transfer the clutch lever 4 in the described positions, a locking lever 9 is provided, which is a central locking lever 9. After not belonging to the invention example according to the Fig. 7 to 10 , which facilitates the understanding of the invention, is used to act on the clutch lever 4, however, an internal locking lever 10. Central locking lever 9 and internal locking lever 10 are both positively and / or positively connected and rotate about a common axis 23rd

The central locking lever 9 is pivoted by means of a motor drive 11, 12, 13, 14 or 14a, 14b. This motor drive 11, 12, 13, 14 is in Individual from an electric motor 11 and a connected output shaft with output worm 12, which engages in a driven pulley 13 meshing. The driven pulley 13 is equipped at the rear in the context of the embodiment with two control pins 14a, 14b, which dip into an associated fork recess 15 of the central locking lever 9 for pivoting it (see. Fig. 5 ).

Thus, the left in front view control pin 14b provides in the locked position Fig. 1 with a rotation of the driven pulley 13 in the counterclockwise direction that an extension 16 of the fork recess 15, in which it dips, is also pivoted counterclockwise. This then also applies to the central locking lever 9 as a whole as in the transition from the Fig. 1 to Fig. 2 taking into account the movement arrows shown becomes clear.

The rotational movement of the driven pulley 13 is now stopped by the fact that the previously right control pin 14 a rests against stop surfaces 15 a of the fork recess 15. In this transition of the central locking lever 9 from the position "locked" ( Fig. 1 ) to the position "unlocked" ( Fig. 2 ), the clutch lever 4 lowers from its position according to Fig. 4a (locked) to the position according to the Fig. 4b (Unlocked). - in unlocked position Fig. 4b is an attached to the trip lever 3 outside door handle thus able to dig out the pawl 2 and thus to open the catch 1 and the associated motor vehicle door.

For quick release according to Fig. 3 the motor vehicle door lock shown additionally additionally has a quick release lever 17 associated with the locking lever or central locking lever 9, which is shown in detail in FIG Fig. 6 is shown. The locking mechanism 1, 2 is connected to the locking lever 9 via this quick-release lever 17. In this way, the quick release lever 17, the locking mechanism 1, 2 release in the course of the quick release by means of the drive 11, 12, 13, 14, substantially independent of the position of the locking lever or central locking lever 9. Starting from the locking position according to Fig. 1 is the quick release lever 17 with the locking lever 9 at least in the functional position shown "locked" positively or positively connected thereto. That is, the clutch lever 4 is in the raised position after Fig. 4a ,

However, if now a quick release is provided, the clutch lever 4 is lowered immediately, because insofar a Gesperreausleger 18 of the quick release lever 17 performs a corresponding movement. For the quick release lever 17 and the clutch lever 4 are connected to each other via the Gesperreausleger 18. In fact, the quick release lever 17 is formed as Einarmhebel which is pivotally connected in a pivot joint 19 to the locking lever 9.

With the help of Gesperreauslegers 18 of the clutch lever 4 is raised to lock the locking mechanism 1, 2, when the motor vehicle door lock as a whole is in the "locked" position. Because in this case takes the central locking lever 9 to the position Fig. 1 and, moreover, the quick-release lever 17 is applied by means of a quick-release pin 20 to the central locking lever 9 (positive or positive fit) (cf. Fig. 1 ) or pressed on this only.

The quick-release pin 20 is part of the motor drive 11, 12, 13, 14 and is designed in detail as about an axis 21 of the driven pulley 13 rotatable and frontally arranged for this purpose double cam 20. In the course of the quick release of this double cam 20 performs a pivoting movement, which corresponds to an angle α of about 5 ° to 90 °, according to the embodiment about 40 °, (see., The transition from Fig. 1 to Fig. 3 ).

This pivoting movement is sufficient for releasing the quick-release lever 17 from its abutment with the central locking lever 9, which in turn has not (yet) been moved in this process (compare the movement arrows in FIG Fig. 3 ). In this case, a gap S arises between the quick-release lever 17 and the locking lever 9.

The central locking lever 9 is only moved when the control pin 14b dips into the extension 16 of the Gabelausnehmung 15 and in this way entrains the central locking lever 9. At the end of the quick release and after sweeping the angle a on the part of the double cam 20 that is (still) not the case, because the control pin 14b has come only to rest on a boundary 22 in the extension 16 (see. Fig. 3 ).

In the illustrated and not belonging to the invention example according to the Fig. 7 to 10 are for better understanding of the invention, the same components provided with matching reference numerals. To convert the clutch lever 4 of the in Fig. 7 shown by the position "unlocked" in the dash-dotted position "locked" is a Gesperreausleger 24 on the inner locking lever 10 (see. Fig. 8 ). In addition to the inner locking lever 10 and the central locking lever 9 is still a lock cylinder lock lever 25 can be seen, which is connected to a lock cylinder, not shown (see. Fig. 8 to 10 ).

With the help of an internal operating lever 26, the locking mechanism 1, 2 can be opened, by this internal operating lever 26 corresponding to the double arrow in Fig. 7 is moved and in the same direction of rotation on the release lever 3 after the Fig. 4a, 4b works, but only succeeds when the clutch lever 4 is in the position shown pulled through "unlocked". On the other hand, the clutch lever 4 assumes the upper (dash-dotted line) position "locked" in the Fig. 7 If the engagement of the clutch lever 4 with the inside lock lever 10 (or the central lock lever 9 or the lock cylinder lock lever 25 is omitted), the clutch lever 4 takes out spring assisted in Fig. 7 pulled position shown "unlocked", so that the actuating lever 13 is now able to open the locking mechanism 1, 2.

In the context of not belonging to the invention example according to the Fig. 7 to 10 is still a locking lever 27 realized, which forms a structural unit 1, 27 with the catch 1. For this purpose, a nose 28 on the locking lever 27 and a groove 29 engage in the rotary latch 1 into each other (see. Fig. 8 ).

The locking lever 27 is designed as a two-armed lever and has a Blockadearm 27 a and a Abfragearm 27 b. In the example, the interrogation arm 27b carries a magnet M, the position of which is interrogated by a hall-mounted Hall sensor as the detection device D (cf. Fig. 8 ).

The blocking arm 27a or the locking lever 27 as a whole ensures that the central locking lever 9 is blocked when the catch 1 is open. This position is in Fig. 9 and in solid line in Fig. 7 in front. Here, the blocking arm 27a of the locking lever 27 ensures that a nose 30 on the central locking lever 9 undergoes the aforementioned blockage. In this way, the central locking lever 9 is "unlocked" in the position after Fig. 9 recorded. This happens - as I said - only with open rotary latch 1. The same position is as I said in Fig. 7 shown in solid lines.

In this case, perform in the Fig. 10 shown in detail remaining locking lever 10, 25, namely the inner locking lever 10 and the lock cylinder lock lever 25 one empty stroke each. All locking levers 9, 10 and 25 are mounted coaxially on the common axis 23. For connection between the central locking lever 9 and the other locking levers 10, 25 a spring or coil spring 31 is realized. The coil spring 31 is also mounted on the axle 23 and provides the desired idle stroke.

Based on Fig. 10 it can be seen that the coil spring 31 has two spring ends 31a and 31b, which abut respectively on a web 32 of the central locking lever 9 and include this web 32 between them. In the space thus created dip another web 33 of the lock cylinder locking lever and a web 34 of the inner locking lever 10 a.

Now, if the central locking lever 9 in the position according to Fig. 9 is blocked, because its nose 30 abuts the blocking arm 27a of the locking lever 27, so lead pivoting movements of both the Innenverriegelungshebels 10 and the Schließzylinderverriegelungshebels 25 - individually or jointly - each to their respective webs 33, 34 deflect the left spring arm 31a of the spring 31 (see. Fig. 10 ).

However, the central locking lever 9 does not change its position. After the deflection, the spiral spring 31 compressed in this manner ensures that both the inside lock lever 10 and the lock cylinder lock lever 25 return to their original position. So there is an idle stroke.

The entire locking lever system 9, 10, 25 remains in the unlocked position, namely when the catch 1 is open, because the central locking lever 9 in its position Fig. 9 maintains. The clutch lever 4 can in this case take its dash-dotted line indicated position "locked" only temporarily, so returns, for example, after completion of his admission by the internal locking lever 10 or the lock cylinder lock lever 25 back to the "unlocked" position. This is consequently his permanent function in this context. Only the central locking lever 9 is thus able to permanently transfer the clutch lever 4 in the functional position "locked", as already explained at the outset. However, this succeeds only when the catch 1 is closed and consequently the locking lever 27 releases the central locking lever 9.

However, as long as the central locking lever 9 and thus the other locking lever 10, 25 occupy their permanent functional position "unlocked" by the blockage with the help of the locking lever 27 and while open catch, the operating lever or inner lever 13 can have no effect, so is also empty.

If the catch 1 is closed, however, the locking lever 27 takes in Fig. 8 shown position, as well as in Fig. 7 shown in dashed lines. As a result, a free space 35 is established at the point which, when the catch is open, corresponds to the opening Fig. 7 previously occupied by the blocking arm 27a.

The space 35 now allows unhindered movements of the central locking lever 9 because its nose 30 can pass the blocking arm 27a. It follows that with closed rotary latch 1, the entire locking lever system 9, 10, 25 both the positions "locked" and "unlocked" occupy is capable of. Likewise, the clutch lever 4 can both positions Fig. 7 to take permanently.

Consequently, (only) take place with the catch closed a latch 1, which corresponds to the upper dot-dash line position of the clutch lever 4 and thus an idle stroke of the inner operating lever 13. At the same time, the clutch lever 4 but also in Fig. 7 covered position shown ("unlocked"), so that the actuating lever 13 is able to open the locking mechanism 1, 2.

Claims (7)

1. A motor vehicle door latch, comprising

   - one locking mechanism (1, 2),

   - at least one locking lever (9), preferably a central locking lever (9),

   - at least one motorized drive (11, 12, 13, 14) and comprising

   - one quick-release lever (17), which is assigned to the locking lever (9),

   wherein the locking mechanism (1, 2) is connected to the locking lever (9) via the quick-release lever (17) and
   wherein the quick-release lever (17) - substantially independently of the position of the locking lever (9) - releases the locking mechanism (1, 2) in the course of the quick-release with the aid of the drive (11, 12, 13, 14),
   characterised in that

   - the quick-release lever (17) is designed as a one-armed lever (17) which is pivotally connected to the locking lever (9) and

   - lifts a clutch lever (4) for the locking of the locking mechanism (1, 2) and lowers said clutch lever for the unlocking thereof with the aid of a locking mechanism cantilever (18).
2. The motor vehicle door latch according to claim 1, characterised in that said quick-release lever (17) is coupled non-positively and/or positively with the locking lever (9) at least in its "locking position".
3. The motor vehicle door latch according to claims 1 or 2, characterised in that said motorised drive (11, 12, 13, 14) is provided with a quick-release pin (20), which places the quick-release lever (17) onto the locking lever (9) in its locking position and releases it for the quick-release from the locking lever (9).
4. The motor vehicle door latch according to claim 3, characterised in that said quick-release pin (20) is designed as a double cam (20), which is arranged frontally on an axis (21) of a driven disk (13).
5. The motor vehicle door latch according to claim 4, characterised in that said double cam (20) performs a pivoting motion of only ca. 5° to 90° in the course of the quick-release.
6. The motor vehicle door latch according to any of claims 4 to 5, characterised in that said driven disk (13) carries on its reverse side one or two control pins (14a, 14b) which engage in a fork recess (15) of the locking lever (9) for the pivoting thereof.
7. The motor vehicle door latch according to any of claims 1 to 6, characterised in that a central locking lever (9) and an interior locking lever (10) are provided, which rotate around a common axis (23) and intermesh non-positively and/or positively.

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