DE10261505B4 - Locking device for a vehicle door - Google Patents

Abstract

A locking device for a vehicle door, comprising - a door-side lock (1) with a rotary latch (2); - A door frame side door closing bracket (3) into which the catch (2) can engage to lock the locking device by rotation about an axis of rotation; and - monitoring means for monitoring the locking state of the locking device, wherein the monitoring means is at least one sensor arrangement which is adapted to detect at least two different rotational angular positions of the rotary latch (2) about its axis of rotation, - wherein the sensor arrangement provided at least one door frame side Sensor, as well as at least one provided on the rotary latch (2) sensor detection means, wherein it is the at least one sensor detection means is a circumferentially of the rotary valve arranged backdrop (7), and wherein the sensor is an at least one-level electrical button (4 ), which can be actuated via an actuating means guided by the link (7), characterized in that the actuating means is a leaf spring (5).

Description

The present invention relates to a locking device according to the preamble of claim 1.

A locking device of the aforementioned type is known from DE 44 33 042 A1 known. The locking device described therein comprises a rotary latch, which engages behind a fastened to a door latch bolt locking bolt upon actuation of the locking device. The rotary latch has on its outer side a backdrop, which cooperates with a control cam of a rotary control element. Depending on its rotational position, the rotary actuating element can actuate an electrical button which monitors the closed state of the motor vehicle door lock.

US Pat. No. 6,264,253 B1 discloses a locking device for a vehicle door in which a microswitch scans directly the peripheral side of a rotary latch. The microswitch has an actuator arm, which is pressed against the gate of the rotary latch via a spring arranged in the interior of the microswitch.

US 4 298 223 A shows a further locking device for a motor vehicle door having a rotary latch with a pawl, wherein the pawl is scanned by a sensor in the form of a microswitch. The microswitch has a leaf spring which actuates a button as a microswitch.

Another locking device is out of the EP 0 796 382 B1 known. The locking device disclosed here has a rotary latch (rotor) which engages behind a locking bolt fastened to a door-closing latch when the locking device is actuated and at the same time actuates an actuating push-rod of a door-control switch. By the arrangement disclosed here, it can be detected via the door control switch, when the rotary latch (rotor) engages in the door closing bracket. However, it is not possible to monitor the different locking states of a generic locking device, as with the immersion of the rotary latch (rotor) has not taken place locking. In particular, in the context of the monitoring of vehicle components by the on-board electronics, however, there is a need to convey the locking state of the locking devices to the on-board electronics. In detail, the information regarding a pre-locking position, a main detent position and / or an overstroke of the catch of interest, but can be achieved only after the intervention of the catch in the door latch. From these more detailed information, for example, warning messages can be generated or automatically closing motor vehicle doors can be controlled.

The object of the present invention is therefore to provide a locking device for a vehicle door, which can detect at least two different locking positions of the locking device.

The object is achieved by a locking device with the features of claim 1. The fact that the monitoring means is at least one sensor arrangement which is suitable for detecting at least two different rotational angular positions of the rotary latch about its axis of rotation allows extended monitoring of the rotary latch independently of the immersion of the rotary latch in the door closing latch Locking states of the locking device, such as a pre-detent position, a main detent position and / or an overstroke of the rotary latch can be detected. By detecting the rotational angular position of the rotary latch as such, a less sensitive detection of the locking state is equally possible, since the information is taken directly to the decisive for the locking component, the rotary latch. As a result, for example, manufacturing tolerances remain largely unconsidered.

According to the invention, it is provided that the sensor arrangement comprises at least one sensor provided on the door frame side, and at least one sensor detection means provided on the rotary latch. By this measure, a sensor arrangement is provided, which forms a functioning unit only in the case of a possible detection of the locking state by the sensor detection means on the door side mounted rotary latch, the sensor is mounted on the door frame side, so that sensor and sensor detection means come together only when the door is largely has been swung in the door frame. Among other things, the assembly is facilitated by this measure.

It is further provided that the at least one sensor detection means is a circumferential arranged on the rotary latch backdrop. The gate is equipped with at least two different surfaces, each having a different distance from the axis of rotation. However, it is also conceivable laterally of the backdrop arranged surface structures that allow lateral scanning. A backdrop on the rotary latch is an insensitive and inexpensive way to mark the rotation angle of the rotary latch about its axis of rotation or to make it mechanically and / or optically scannable.

According to the present invention, it is further provided that the sensor is an at least one-level electrical pushbutton which can be actuated via an actuating means guided by the slide. A simple button or switch is also a cheap and insensitive way to scan the backdrop in a suitable manner. The actuator is used in this case as an adapter to optimally adapt the switch to the position of the scenery. Also conceivable are multi-stage switches or buttons, which can be controlled with correspondingly corresponding scenes and can scan several rotational positions of the catch.

It is further provided that it is the actuating means is a leaf spring, which is preferably end provided with a customer. As a result, a permanent adhesion of the actuating means can be ensured with the backdrop and a secure scanning of the backdrop. In addition, the sampling point can be adjusted very easily by adjusting the length and position of the leaf spring or the pickup.

Advantageously, the customer is arranged in the locking direction of rotation of the rotary latch behind the door latch, whereby the scanning of an already immersed in the door latch handle catch is possible.

For optimum utilization of the available installation space is provided that the sensor is mounted within the door latch.

The invention will be explained in more detail by means of embodiments with reference to the accompanying drawings, in which:

1 a side sectional view of a locking device according to the invention;

2 a detail enlargement of a sensor arrangement of a closing device according to the invention.

First, it will open 1 with reference.

A locking device according to the invention essentially comprises a lock 1 with a catch 2 , as well as a door latch 3 into which the catch 2 can intervene to lock the locking device.

The locking device is suitable for locking a door pivotably mounted in a door frame, primarily a motor vehicle door, in accordance with the special requirements in vehicle construction. For this purpose, the door latch 3 through one in the catch 2 provided recess 8th by turning the catch 2 behind its axis of rotation engaged behind and made a positive connection between the door and the door frame.

Among the mentioned special requirements in vehicle construction, among other things, that even if the door is only slightly pivoted into the door frame, the locking device must already establish a first locking state, so that the door can not be opened unintentionally, for example by a gust of wind. For this purpose, the catch 2 occupy a so-called pre-locking position, in which although a positive connection between the catch 2 and the door latch 3 However, the door is not completely closed, but only by pressing the lock 1 , for example, by pulling a door handle, can be opened. This state of the castle 1 is called pre-rest position.

In addition, a second locking state is provided by a further rotation of the rotary latch 2 can be achieved, with the door is completely closed, and the catch 2 located in a so-called main detent position.

The same requirements described above also apply to sliding doors, such as those used for vans or vans.

In particular, in the context of the monitoring of vehicle components by the on-board electronics, there is a need to convey the state of the locking device to the on-board electronics. As a result, for example, an automatic closing process can be monitored or a warning message can be triggered. Also, the interior lighting could be controlled.

To achieve these and other objects, a sensor assembly comprising an electrical button 4 with one to actuate the button 4 suitable leaf spring 5 and a circumferential of the rotary latch 2 arranged backdrop 7 intended.

The scenery 7 each has different surface distances to the axis of rotation of the rotary latch 2 on. Also conceivable is a backdrop 7 , which has correspondingly different lateral surfaces. By one end of the leaf spring 5 arranged customer 6 from the backdrop 7 is guided, the bending angle of the leaf spring 5 depending on the rotational position of the catch 2 changed and the button 4 be operated. By suitable adjustment of the surface distances or adjustment of the spring distance, selection of the button 4 etc. can be detected, for example, when the main catch position of the catch 2 was left and the Vorraststellung is not yet reached. Also, a so-called overtravel of the catch can be detected. In particular, by a suitable selection of the scenery 7 and the button 4 , which is also a multi-level button 4 can act, almost any state of the catch 2 and thus the castle 1 scanned and transmitted electrically.

LIST OF REFERENCE NUMBERS

1

 lock

2

 catch

3

 Door striker

4

 button

5

 leaf spring

6

 customer

7

 scenery

8th

 recess

Claims (4)

Locking device for a vehicle door, comprising - a door-side lock ( 1 ) with a catch ( 2 ); - a door frame side door latch ( 3 ), in which the catch ( 2 ) can engage to lock the locking device by rotation about an axis of rotation; and - monitoring means for monitoring the locking state of the locking device, wherein the monitoring means is at least one sensor arrangement which is adapted to at least two different rotational angular positions of the catch ( 2 ) to detect its axis of rotation, - wherein the sensor arrangement at least one door frame side provided sensor, as well as at least one on the rotary latch ( 2 ) provided sensor detection means, wherein it is at the at least one sensor detection means to a circumferentially of the rotary valve arranged backdrop ( 7 ), and wherein the sensor is an at least one-level electrical button ( 4 ), one of the scenery ( 7 ) actuated actuating means, characterized in that it is the actuating means to a leaf spring ( 5 ). Locking device according to claim 1, characterized in that the leaf spring ( 5 ) end with a customer ( 6 ) Is provided. Locking device according to claim 2, characterized in that the consumer ( 6 ) in the locking direction of rotation of the catch ( 2 ) behind the door latch ( 3 ) is arranged. Locking device according to one of claims 1 to 3, characterized in that the sensor within the door striker ( 3 ) is attached.

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