JP2000296761A - Center lock device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute a lightweight center lock device at a low cost. SOLUTION: This device is provided with a controller, an automobile door lock 2, and an identification device, the door lock is opened by the controller in operating a door grip after inspection and release by the identification device, and the center lock drive operates a lock claw for releasing a bar for opening the door lock. The center lock lever 14 engages/disengages an external operation lever 22 connected to the door outside grip for the operation of the lock claw 8, with a release lever 24 in a lock position and connects them together in the engagement/disengagement position, and when a lock lever 24 is released from the lock position to the engagement/disengagement position by the operation of the door outside grip and the controller, connecting links 29, 30 or a connecting lever guided by the lock lever and the release lever are provided for moving the bar in the release position and connecting the outside operation lever to the release lever.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an electronic control device,
In addition, it can be controlled by an electronic control unit,
Vehicle center lock device having at least one vehicle door lock with at least one center lock lever with a blocking pawl and a center lock drive and one or more identification devices, for example chip cards or magnetic cards In that case, the vehicle door lock is electrically opened when the associated door outer handle is operated after the inspection of the identification device and the release by the control device. The invention relates to a center lock device in which a lock drive device (via a center lock lever) indirectly or directly operates a blocking claw for releasing a rotary latch. Basically, a plurality of motor vehicle door locks are realized, i.e., side doors, rear doors, trunk compartment covers and possibly tank covers. Basically, identification devices cover remote controls, chip cards or magnetic cards or similar access control devices, as well as locks. The locks are intended for conventional automatic door locks and those for ordinary lock cylinders provided with a baltic.

[0002]

2. Description of the Related Art European Patent Application No. 0 896 118 discloses a center locking device in which a release lever is provided with a partial profile which cooperates with a pivot or pin of a blocking pawl. These components act as opening aids, which cause the blocking pawl to move to the open position upon receiving an unlock signal. Depending on the dimensions chosen, a relatively powerful motor is required,
As a result, the basic benefits of a single drive are thus partially lost.

[0003] In addition, German Patent Application No. 1953072
A center locking device is known from US Pat.
In this connection, the blocking pawl can be disengaged on the one hand by the first electrically controllable adjusting element and on the other hand by the inner operating lever. At that time, the inside operation lever
A coupling lever which can be engaged and disengaged via a second electrically controllable adjusting element acts mechanically on the blocking pawl in the engaged position of the coupling lever. Correspondingly, there is basically a so-called servo release, ie an automatic (electrical) release of the blocking pawl. -In the above teaching, remote control will be used as the identity verification device.

[0004] Passenger locks with the possibility of so-called servo opening are based on their extremely fast response and the associated automation of the automatic opening of the blocking pawl, so-called "keyless entry systems", ie without lock. Suitable for access to cars. Such a "keyless entry system" provides for the vehicle user to carry the identification device himself and between the vehicle or the associated control device and the identification device when operating the door outer handle. Operate to interact. If the vehicle user has the necessary authority to open the vehicle, the electronic control unit releases the corresponding signal electrically and also automatically (according to DE 195 30 726). Sent to at least one car door lock. In any case, such a use-or-ride process requires only a very small communication and / or response time which can be presented when the motor vehicle door lock is opened electrically or by means of a servo release.

[0005] The generally known passenger car locks have the disadvantage that, for economic reasons, the savings of the mechanical surplus provide full functionality only as long as the motor vehicle electrical board net is fully functional. As a result, the uninterrupted functioning method can only be guaranteed by an excessive board net. This translates into additional costs. Known passenger locks for this reason have all the necessary mechanical functions and additionally have the described servo release. This is associated with increased costs and greater weight. In addition, this leads to a great deal of complexity of car door locks. Here, the present invention collectively creates exclusion.

[0006]

SUMMARY OF THE INVENTION The present invention provides a center locking device in the technical field which allows the servo opening of all mechanical functions under the illustration, i.e. for a low cost, a low cost and a known configuration. Forming with reduced weight is the basis of the technical problem.

[0007]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention provides an automobile center lock device having the structure described at the outset, wherein the center lock lever blocks an outer operation lever connected to a door outer handle. The release lever for the operation of the pawl is connected to its unlocked position in its unlocked position and disengaged in its locked position, with the center lock lever unlocked from the locked position when operating the outer handle of the door and releasing by the control device. Can be shifted under simultaneous pivoting of the release lever to the position where the rotary latch is released, in which case the center lock lever and the connecting link or the center guided by the release lever for connection of the outer operating lever and the release lever A coupling lever is formed which is rotatable and movable on the axis of the locking lever. As a result, the existing center lock lever can be indirectly or directly (including the center lock drive), i.e., under the rear grip of the suitable lever device if the outer handle is operated. Undertake the servo release described in (1). The center lock drive has an additional function (besides the essential locking of the entire vehicle door lock), that is to say the electric, simultaneously automatic and open operation of the blocking pawl. As a result, a special motor and associated transmission for operating the blocking pawl are omitted, in which case instead of the control of this component by the control device, a center lock device, i.e. a center lock drive with a center lock lever, Controlled.

In addition, the center lock lever simultaneously assumes the connection function, that is, the connection function between the outer operating lever and the release lever for operating the blocking pawl. When the door outer handle is operated and released by the control device (after inspection of the identification device), the center lock lever moves from the locked position to the unlocked position under the simultaneous rotation of the release lever to the position to release the rotating latch. Turn. That is, the center lock lever is fully guided--starting from its locked position--performing a pivoting movement to its unlocked position, i.e. the access of the vehicle to an authorized vehicle user is guaranteed.

This is effected in such a way that, after the identification device has been checked and released by the control device, the control device controls the center lock lever in this case via the center lock drive. At the same time, the release lever is substantially entrained by the center lock lever, so that the release lever reaches a position where the rotary latch is released.

According to a preferred configuration, the center lock drive comprises a regularly reversible electric motor with an associated worm gear. The worm meshes with the driven worm gear for rotation of the driven worm gear. The driven worm gear can have at least one eccentric pin, which engages in a corresponding forked recess with a stop surface on both sides for pivoting of the center lock lever. . Of course, pivoting of the center lock lever in a conventional manner is also possible purely mechanically, i.e. via the inner lock lever as well as the outer lock lever. This will be explained in detail with reference to the drawings.

For the case where the connecting link is gripped rearward as a similar connection between the outer operating lever and the release lever, the connecting link is preferably a center lock lever and a release lever below it in the front view. And a link leaf spring provided with a link pin. This link pin is guided on the one hand into the slot of the center lock lever and on the other hand into the slot of the release lever.

The outer operating lever is mounted as a two-armed lever, which is regularly rotatably mounted about an axis and has an operating lever arm and a release lever arm connected to a door outer handle. . Preferably, the release lever arm is used for guiding the pivoting of the release lever in the process of occupying the unlocked position of the center lock lever, ie below the connecting link or the intermediate connection of the connecting lever. For this purpose, the release lever arm forms the connecting link, or its link pin or the guide of the connecting lever, in the locking position of the center locking lever and by the lip during operation of the outer handle of the door and release by the control device. In this way the link pin or the connecting lever slides over it, i.e. slides along the guide (to its unlocked position) in the course of the operation of the center locking lever.
At the same time, the release lever is pivoted to the unlocked position (for the rotating bar).

As a result, within the scope of the present invention, the center lock or the center lock drive and the center lock lever are likewise retracted for additional functions, ie side doors, rear doors, trunk compartment covers, tank flaps, etc. At the opening of the servo of each car door lock. This is successful with a simple construction and low weight, because an additional drive with a gearing for the servo release is known from DE 195 30 726 A1. As described in-because it is obviously not necessary. In EP 0 896 118, work is performed by means of a drive which is weak and therefore lightweight and inexpensive, since the link pin described in the connecting link travels a relatively large distance along the edge of the release lever. Because. With the other described arrangements, unlike the teachings of the published European patent application, the specified and complete guidance of the connecting links is ensured, whereby tilting, malfunctions and the like can be eliminated.

In any case, not only advantages in terms of functionality but also in terms of production and production costs are made available, since not only are additional structures omitted and the necessary drives are constructed inexpensively. , And assembling,
Installation and maintenance are also simplified.

The check of the identification device beside the control device is carried out in such a way that the control device can be implemented as an introductory bus in series with a controllable motor vehicle door lock for each motor vehicle door. The connection is made via a conductor. The serial control signals transmitted via this bus are converted by the control device into corresponding control signals for the center lock drive. For this purpose, the control device comprises a multiplexer and a demultiplexer with control and operating circuits in each motor vehicle door lock, which is basically the above-mentioned German patent application DE 195 307.
26, can be provided.

For the checking of the identification device, this is, as described in detail in the relevant literature, the identification code word stored in the control device and the identification to be called up transmitted by the identification device. A comparison with the codeword is made. This presupposes an active identification device in the sense of remote control. Of course, this identification device can also be implemented passively, as this is basically described in DE 197 01 077. So-called magnetic or chip card reading systems are also conceivable here.

Next, the present invention will be described in detail with reference to the drawings showing only embodiments. That is,

[0018]

FIG. 1 shows a center locking device for a vehicle. The central locking device is equipped with an electronic control unit 1 and a motor vehicle door lock 2 that can be electrically controlled by the control unit 1 according to the diagrammatic illustration in FIG.
According to an embodiment, four car door locks are represented for each car door of a four-door car. The connection between the vehicle door lock 2 and the electronic control unit 1 is performed via an electric control lead 3 for controlling the vehicle door lock 2 by the control unit 1. The electric control line 3 is embodied in the present invention as a series introduction bus 3, wherein each motor vehicle door lock 2 has at least one control and switching circuit 4 for controlling the center lock drive 5. . Of course, other collective devices for the vehicle door lock 2 of each control and operation switching circuit 4 can also be proposed. Eventually, in the schematic illustration, the identification device 6 is recognized, and the identification device is checked by the control device 1 for the authority of the user. In this identification device 6,
Remote controls, chip- or magnetic cards or similar access control devices may be targeted. Of course, you can basically think of a key.

Referring to FIG. 2, each motor vehicle door lock 2 has a rotary latch 7 and an associated blocking pawl 8. The rotary latch 7 and the blocking pawl 8 are arranged on the closure element shell 9. This closure element shell 9 is shown in a front view in FIGS.
It is arranged below the lever element shell 10 represented therein. According to FIG. 6, the lever element shell 10 is closed by a cover 11. An inner lock lever 12 and an inner operation lever 13 are supported on the cover 11.

The basic structure corresponds to FIGS.
A further center lock lever 14 cooperating with the center lock drive 5 belongs. The center lock drive 5 comprises a reversible electric motor 5 a with a connected motor shaft 5 b and a worm gear 5 c and is arranged on the upper part of the closing element shell 10. Motor shaft 5
The rotational movement of b is converted into reversible rotational movement of the driven worm gear 15 via the worm 5c. This is represented by a double arrow. The driven worm gear 15 is
In the embodiment, two eccentric pins 16 are provided. The eccentric pin 16 has a corresponding forked recess 1 having a stop surface 18 on both sides for pivoting of the center lock lever 14.
7. In FIG. 3, the position of the center lock lever 14 at the unlocked position is indicated by a solid line. In this position, the eccentric pin 16 abuts the associated (right-hand) stop surface 18, whereby the driven worm gear 15 (which is generally known and already described in the prior art) and therefore the electric motor 5a Is stopped.

The center lock lever 14 shown in FIG.
Is locked by the center lock driving device 5.
-Starting from the unlocked position-driven worm gear 15
Is rotated counterclockwise so that the left eccentric pin 16 in FIG. 3 fits into the fork-like recess 17 and occupies the position where the center lock lever 14 is pivoted clockwise. This is done until the right eccentric pin 16 in FIG. 3 abuts the left stop surface 18 and stops the electric motor 5a in this way.

Center lock lever 14 to various positions
In addition to the above-mentioned transfer, turning by the inner lock lever 12 and the outer lock lever 19 is possible. For this purpose, for example, an outer lock lever 19 provided with a projection 20 fits into a pivot opening 21 of the center lock lever 14.

In addition, the outer operation lever 2 shown in FIGS.
2, the outer operating lever cooperates with a door outer handle (not shown). The outer operation lever 22 is a two-arm lever including an operation lever arm 22a and a release lever 22b connected to a door outer handle. in any case,
Operation of the outer handle of the door leads to pivoting of the outer operating lever 22 about its axis 23, and thus to pivoting in the direction of the arrow.
Eventually, the release lever 24 belongs to the basic structure, which is pivotally supported about an axis 25 and which releases the jib 27 of the blocking pawl 8 (at the bottom in the front view) to its opening. (See FIG. 2).
The axis 25, the (rotation) axis 23 and the axis 28 for the center lock lever 14, the rotary latch 7 and the outer lock lever 19 arranged above the center lock lever 14 are respectively arranged in parallel with each other. . This also applies to the axis of the driven worm gear 15.

Outer operation lever 22 and release lever 24
Are provided for connecting the center lock lever 14 and the release lever 24. Alternatively, a connecting lever rotatably and movably arranged on the axis 28 of the center lock lever 14 can also be implemented, but the connecting lever is not shown. The connecting links 29 and 30 are connected to the center lock lever 14 and the release lever
And a link leaf spring 29 disposed between them, and link pins 30 penetrate the link leaf spring 29 on both sides. The link pin 30 is guided on the one hand into the slot 31 of the center lock lever 14 and on the other hand into the slot 32 of the release lever 24.

The functioning method is performed as follows. Each of the illustrated car door locks 2 is electrically opened when the associated outside door handle is operated after the inspection of the identification device 6 and the release by the control device 1. For this electric opening of the vehicle door lock 2, the center lock drive 5 operates the blocking pawl 8 via the center lock lever 14 indirectly or directly to release the rotary latch 7. The center lock lever 14 connects the outside operation lever 22 connected to the door outside handle to the release lever 24 at the unlocked position (see FIG. 3). The engagement with the release lever 24 is performed at the locked position of the center lock lever 14 (see FIG. 4). Upon release by the door outer handle and the control device 1, the center lock lever 14 is moved from the locked position in FIG. 4 to the unlocked position corresponding to the illustration in FIG. This takes place under the simultaneous pivoting of the release lever 24 to the position where the rotary latch 7 is released.

The rotating latch 7 is provided with a blocking claw 8 by a usual method.
Held in its closed position. The car door lock and the associated car door are then closed. In order to open the vehicle door lock or vehicle door, the blocking pawl 8 must be pivoted in such a way that the rotating latch 7 (spring-supported) can rotate and thus release a closing piston, not shown. The rotation of the blocking claw 8 is performed by a release lever 24, and the release lever is urged by the inner operation lever 13 or the outer operation lever 22 via the connection links 29, 30.

When the outer operation lever 22 is operated in the direction of the arrow, the connecting links 29 and 30 are moved to their positions A shown in FIG.
To the position B (dashed line), that is, transferred at the center lock lever 14 at the unlocked position. At the same time, the release lever 24 is pivoted counterclockwise about its axis of rotation 25 and pressed by the projection 26 onto the jib 27 of the blocking pawl 8, so that the rotary latch 7
Is released.

When the center lock lever 14 is transferred by its driven worm gear 15 to its locked position (see FIG. 4), a pivoting of the center lock lever 14 around the axis 28 and thus clockwise takes place. At the same time slot 31
Is moved to the position shown in FIG. Further link 2
9 and 30 are moved to position C. In this position, the connecting links 29, 30 are no longer moved by the outer operating lever 22, because the operating lever arm 22 b of the outer operating lever 22 can no longer abut the link pin 30. As a result car door lock 2
Is no longer released in the locked position of the center lock lever 14 as is of course and desired.

When the outer operation lever 22 is operated and the control device 1 releases the servo opening, the servo opening is performed as follows. The connecting links 29, 30 are in position C (see FIG. 4) and the outer control lever 22 is pivoted clockwise around the axis of rotation 23 to the indicated position. Thus, the edge 33 of the operating lever arm 22 occupies the position shown in FIG. The rim 33 guides the connecting links 29, 30 or the link pins 30 or forms an optional connecting lever, not shown.

As soon as the center lock lever 14 has been actuated (transition to the unlocked position) and thus released by the release of the control device 1 which accordingly biases the center lock drive 5, in any case the link pin 30 is released. Accordingly, the connecting links 29, 30 slide along the edge 33. At the same time, the release lever 24 is pivoted and thus pivoted about the axis 25. At the end of the movement of the center lock lever 14, the connecting links 29, 30 are again in the position B corresponding to the open position of the release lever 24 (see FIG. 3). Simultaneously with the pivoting of the release lever 24 in a counterclockwise direction, the projection 26 releases the blocking pawl 8 in connection with the jib 27, so that the rotary latch 7 is released.
As a result, the release lever 24 becomes the center lock lever 1
In the process of occupying the unlock position of 4, the connecting link 29,
It serves for pivoting of the release lever 24 below the intermediate connection 30 or the connecting lever not shown.

[Brief description of the drawings]

FIG. 1 shows a schematic overall view of a center locking device according to the invention.

FIG. 2 shows a closure element shell with rotating latches and blocking pawls.

3 shows a lever element shell arranged on the closing element shell according to FIG. 2 in a front view, with the built-in center locking device in the starting position to the unlocked position; FIG. .

FIG. 4 shows the lever element shell arranged on the closure element shell according to FIG. 2 in a front view, with the built-in center locking device in the locked position.

FIG. 5 shows the lever element shell arranged in a front view on the closing element shell according to FIG. 2 with the built-in center locking device in the unlocked position;

FIG. 6 shows a section taken along line AA of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic control device 2 Automobile door lock 5 Center lock drive device 6 Identification device 7 Rotating latch 8 Blocking claw 14 Center lock lever 22 Outer operation lever 24 Release lever 29 Link leaf spring 30 Link pin 31 Slot

Claims (5)

[Claims] An electronic control device (1), a rotary latch (7), a blocking claw (8), and at least one center lock lever (14) provided with a center lock driving device (5), At least one car door lock (2) electrically controllable by an electronic control unit (1);
An identification device (6), wherein the car door lock (2) is electrically operated by the control device (1) upon inspection of the identification device (6) and operation of the associated door handle after release. For the electric opening of the vehicle door lock (2), the center lock drive (5) indirectly connects the blocking pawl (8) for the release of the rotary latch (7). Or directly actuated, the center lock lever (14) is provided with a release lever (24) for operating the blocking pawl (8) with the outer operation lever (22) connected to the door outer handle. ) In its unlocked position and disengaged in its locked position,
At this time, the center lock lever (14) is turned by the rotary latch under the simultaneous turning of the release lever (24) when the door outer handle is operated and released from the locked position to the unlocked position by the control device (1). (7) can be moved to the release position, and then the outer operating lever (22)
For the connection of the release lever (24) with the center lock lever (14) and the connecting link (29, 30) guided by the release lever (24) or the axis (28) of the center lock lever (14). And a connecting lever movably disposed therein is formed. 2. A coupled worm (5c) for rotation of a driven worm gear (15) with at least one eccentric pin (16).
And an eccentric pin (16) having a corresponding forked recess (17) with a stop surface (18) on both sides for pivoting of the center lock lever (14). The center lock device according to claim 1, wherein the center lock device is fitted inside. 3. The connecting link (29, 30) comprises a link pin (30) disposed between the center lock lever (14) and a release lever (24) below it in a front view. It has a link leaf spring (29), in which the link pin (30) is on the one hand in the slot (31) of the center lock lever (14) and on the other hand in the slot (32) of the release lever (22). The center lock device according to claim 1, wherein the center lock device is guided. 4. A center lock lever (22) comprising an operation lever arm (22a) and a release lever arm (22b) connected to a handle outside the door, and an axis (21).
4. The center locking device according to claim 1, wherein the center locking device is formed as an intermediate arm lever rotatably mounted around the lever. 5. In the process of occupying the unlocking position of the center lock lever (14), when the door outer handle is operated and released by the control device (1), the connecting link (29, 3) is used.
0) or for the guided pivoting of the release lever (24) below the intermediate connection of the connecting lever and for this purpose the connecting link (29, 30) or the link pin (30) or the connecting lever by the rim (33) Form a guide for
5. The method according to claim 1, wherein the coupling lever slides to the open position under simultaneous pivoting of the release lever during the operation of the center lock lever. The center lock device described in any one of the above.