EP0826855B1 - Lock, specially for vehicle doors or the like - Google Patents

Description

The invention relates to a lock, in particular a lock for motor vehicle doors or the like, according to the features of the preamble of claim 1.

Such a lock is known for example from FR-A-2 452 564.

It was moreover proposed a lock with a coupling device, the one of a pawl lockable and released by this catch, wherein via a coupling member of the coupling device that can be moved by an adjusting device a release force on the pawl depending on the specifications of a Operator acts or not. The coupling element is between a coupling element and the pawl arranged, the coupling member between two Positions of the actuator is movable. Is the coupling link in the area the stop surfaces, a triggering force acting on the coupling element can be applied the coupling link are transferred to the pawl, so that the catch is out their locked position is released and the door can be opened. Lies the coupling member is not in the area of the stop surfaces, an idle stroke is carried out and the pawl is not operated, so that the door remains locked. How it works the coupling device operated by the actuating device works satisfactory in and of itself. It has now been found that the implementation several lock functions (anti-theft position, central locking, Unlocked position and, if necessary, child lock, the said Functions are known in and of themselves) possible with the known castle are, however, a high control effort is required, which leads to delays, especially in critical situations (e.g. accident), of movements of the coupling link leads. For example, the coupling link is located in the Anti-theft position is always a movement of the coupling link in the another position is required to open the door with a handle. This is then disadvantageous and above all dangerous if for the actuating device for example, due to an accident, power supply is no longer available stands.

To avoid this case, the well-known castle alternatively provides that the Coupling link is in the coupled position. Is the operator one Anti-theft position desired, the lock works in such a way that the coupling link remains in the coupled position and the actuation of a handle is detected, which then causes a decoupling of the coupling element. It can happen that with a sufficiently quick actuation of the handle this Decoupling is not carried out sufficiently quickly, so that the door is unauthorized can be opened.

The invention is therefore based on the object, such a lock with a To improve coupling device while maintaining the functions so that the Disadvantages described are avoided and actuation of the lock is carried out sufficiently quickly, particularly in the case of dangerous situations.

This object is solved by the features of claim 1.

The movement of the coupling element caused by the adjusting device in the at least three positions has the advantage that the coupling element is initially in a first Position (central locking position) in which the door opens from the inside door handle is possible, but not via the outside door handle.

For example, if the driver parked the vehicle and a Anti-theft position wants, in which the door neither over the Outside door handle can still be opened via the inside door handle sufficient time is available to move the coupling link into a second position (Anti-theft position) to move. The driver returns to his Vehicle back and wishes the door to be opened via the outside door handle, stands again sufficient time is available to the coupling link from the To move the actuating device into a third position (unlocking position) that from opening the door both via the outside door handle and via the Internal door handle is possible. In addition, there is the movement of the coupling link in a fourth position (childproof position), in which the opening the door is enabled via the outside door handle, opening via the However, inside door handle is prevented.

In a further development of the invention, the actuating device or the coupling element Assigned means for detecting the position, depending on the detected position, the actuating device is controlled. Is that Coupling element, for example, in the central locking position and becomes a Anti-theft position desired, the control device is in Operated depending on the corresponding specification of the operator (switched on) so that the coupling link in the anti-theft position is proceeded. If this position is reached, the funds will be used to Detection of the position detected and the actuating device switched off.

In an alternative embodiment of the invention, it is provided that the Actuator is a stepper motor. By appropriate control of the Stepper motor, in particular by specifying a certain number of Steps of the stepper motor, the at least three positions can be approached become. An electric motor (e.g. a DC motor) can also be used be, the revolutions of the output shaft via a Detection device (e.g. a microswitch) can be counted.

Further advantageous configurations of the lock according to the invention are stated in the remaining subclaims.

Two preferred embodiments, but not to the invention is limited, are described below and with reference to the figures explained.

Figur 1:

eine erste Ausführungsform eines Schlosses einer Kopplungseinrichtung,

Figur 2:

eine Steuereinrichtung,

Figur 3:

eine weitere Ausführungsform eines Schlosses einer Kopplungseinrichtung.

Show it:

Figure 1:

a first embodiment of a lock of a coupling device,

Figure 2:

a control device,

Figure 3:

a further embodiment of a lock of a coupling device.

A lock 1 shown in Figure 1 has a rotary latch 1.1, which against a Rotary latch spring 1.2 acts, the rotary latch spring 1.2 between one Fixed stop 1.3 and one arranged on the catch 1.1 Stop 1.4 is clamped. The position of the catch 1.1 is by means of a Rotary latch switch 1.5 detectable. Furthermore, the catch 1.1 has a paragraph 1.6, with which an intermediate detent position (pre-detent) is realized. Still is a contact surface 1.7 available, via which the catch 1.1 Lock position is durable. The U-shaped catch 1.1 encloses with its two legs a striker 1.8 and thus holds, for example a motor vehicle door in its closed position in a manner known per se. A Pawl 1.9, which is pivotable about a pivot point 1.10, is also with a not specified projection in Figure 1 on the contact surface 1.7 of the catch 1.1. Also around pivot point 1.10 or one other pivot around two coupling elements 1.11 are stored, the Springs 1.12 in the position shown in FIG. 1 (if necessary under attachment be held at a position not shown). On each grip a projection 1.13 of the respective coupling element 1.11 Means that allow the coupling element 1.11 from its position shown to turn the pivot point 1.10. These funds are available, for example an inside door handle 3 or an outside door handle 3 or other handling in Connection with which the two coupling elements 1.11 mechanically are independently operable. In Figure 1 it is shown that it with these funds around Bowden cables 1.14 and 1.15 each with a soul 1.16 and 1.17 acts, which are in turn biased by springs. at Operating the inside door handle 3 or the outside door handle 4 will relevant coupling element 1.11 twisted and under certain circumstances, which will be explained below, the pawl 1.9 from its shown Brings locking position into an open position, so that the catch 1.1 Closing wedge 1.8 releases. The actuation of the inside door handle 3 or Outside door handle 4 is detected by means of a switch.

Furthermore, an actuator 2 is provided, for example around an electromagnet 2.1 with a linearly displaceable actuator 2.2 acts that can act against a spring. As an actuator, too such a can be used, which produces a rotational movement, which in a linear movement is implemented. A locking device then takes place by their holding torque. The displacement of the actuator 2.2 acts on a lever 2.4, which is pivotable about a pivot point 2.5. Instead of the linear movement, an actuator with a Rotational movement or a combination of both can be provided: The pivoting of the lever 2.4 about the pivot point 2.5 causes an im essential linear displacement of a coupling element 2.6 in a Direction of movement 2.7. It is also conceivable that the actuating device 2 directly or undercuts or translates to the coupling element 2.6, whereby also then linear or rotary movements are again conceivable. In Figure 1 is shown that the coupling member 2.6 is essentially an elongated rectangular shape has, with others adapted to the constructions Embodiments (such as a wedge shape) are conceivable. It is also conceivable that the coupling element 2.6 and / or the Coupling element 2.6 actuating components (e.g. actuating device 2, lever 2.4) are arranged on the pawl 1.9 or the coupling element 1.11.

The respective coupling element 1.11 has a stop 1.26A and 1.26B and the pawl 1.9 on a stop 1.27, which are offset from one another are arranged, the coupling member 2.6 between the two Stops 1.26A and 1.27 or between stops 1.26A, 1.26B and 1.27 can be located or after actuation of the actuating device 2 from this Area of the stops is slidable or vice versa.

FIG. 2 shows a control device 10 with which the control of the Actuating device takes place depending on opening or closing commands. For this purpose, the control device 10 with the actuating device 2 (in particular the Electromagnet 2.1) connected, the control device 10 via Sensors (switches or the like) 10.4 Information about the actuation the handle 3, 4 (door handle, push button or the like) and / or over a sensor 10.6 (rotary latch switch 1.5) information about the position of the Catch 1.1 received. Furthermore, the control device 10 is a Input device 10.7 (for example a switch for activation or Deactivation of a child lock) and a receiving device 10.8 assigned, wherein via a transmitter 10.9 to the receiving device 10.8 Opening and closing commands are transferable. Furthermore, the Control device 10 a power supply 10.10 and a Display device 10.11 (for status display) assigned. In addition, the Control device 10 may be provided with an interface 10.13 via which certain functions can be specified via which further information about the Status of the motor vehicle can be transmitted to the control device 10. One is preferably integrated in the control device 10 Emergency power supply 10.14 and a voltage monitor 10.15, the For example, to the emergency power supply 10.14 when falling below one Predefinable voltage threshold activated. The two components 10.14 and 10.15 may be present, but need not be. With the reference number 10.16 is an input and output control as well as a control and Storage logic summarized with, for example, in a program stored the functions of the control device 10 are executed.

The control device 10 operates as follows:

The coupling element 2.6 is coupled in a basic position, so that it is in the Area of stops 1.26A and 1.27 is located. This applies to the position "centrally locked", so that when the door handle 3 is actuated, the stop 1.26A comes into contact with the stop 1.27 via the coupling link 2.6 and with a further pivoting about the axis of rotation 1.10 the pawl 1.9 twisted and thus releases the catch 1.1. In a second position The coupling link 2.6 is “unlocked” into the area between the stop 1.27 and the two stops 1.26A and 1.26B moves, so that at one mutually independent actuation of the inner door handle 3 or Outside door handle 4 the movement sequence already described is carried out, so that the door of the vehicle is opened both from the outside and from the inside can be. From the actuating device 2, the coupling member 2.6 is still in one third position movable, in which the stops 1.26A and 1.26B not in contact can be brought with the coupling member 2.6, so that an actuation both the inside door handle 3 and the outside door handle 4 go nowhere and thus an anti-theft position is reached. That means that Coupling link 2.6, starting from a first position (centrally locked) from the actuating device 2 in at least two further positions (Unlocked position, anti-theft position) can be brought. As an alternative to this, it is also conceivable that the coupling element 2.6 basically in the anti-theft position, i.e. not in the area of the 1.26A stops and 1.26B, and the actuating device 2 connects the coupling element 2.6 Adjustment of the central locking position in the area of the stop 1.26A and to adjust the unlocking position further in the range of Stop 1.26B moves.

Figure 3 shows a further embodiment of the lock 1, with reference to 1 identical components are provided with the same reference numerals. In Modification to the embodiment shown in Figure 1 is shown that the two coupling elements 1.11 are designed as approximately T-shaped levers, this being a preferred but not limiting embodiment. The two coupling elements 1.11 are again preferably one common axis of rotation 1.10 mounted, the Coupling elements 1.11, in particular on those with the reference numerals 6 and 7 designated end areas, the connecting elements such as Bowden cable, Linkage or the like leading to the inner door handle 3 and the outer door handle 4 (not shown in Figure 3).

The embodiment of the invention shown in FIG. 3 is now provided that the pawl 1.9 a recess 8 and the two Coupling elements 1.11 each have a recess 9 and 10, the Recesses 8 to 10 offset from each other and not congruent in the Pawl 1.9 or 1.11 are arranged in the coupling elements. to Setting the desired positions is again one with the reference number 2.6 provided coupling link, on the one hand, a linear movement 12, which is effected by the actuating device 2, can perform and supplementary is mounted so that there is a rotary movement 13 about the axis of rotation 1.10, triggered by actuation of the handle.

The targeted setting of the desired positions is carried out by one on the Coupling member 2.6 arranged pins 14 in interaction with the Recesses 8 to 10 and the linear movement 12 and the rotary movement 13 reached. This works as follows:

This is in the position of the pin 14 shown in FIG. 3 Lock 1 in its anti-theft position (DS), so that at Actuation of the inner door handle 3 and the outer door handle 4 of the pins 14 the axis of rotation 1.10 is pivoted, but in the recess 8 of the Pawl 1.9 is guided so that there is an idle stroke of both handles and the pawl 1.9 is not operated. The door remains locked. Becomes desired by an operator to open the door, the pin 14 of the anti-theft position (ENTR) in an unlocked position proceed in which when actuating one of the two coupling elements 1.11 a handle of the pin 14 about the axis of rotation 1.10 against the pawl 1.9 is pressed, takes it along and the catch 1.1 is released. Consequently the door can be opened both from the inside and from the outside. To When the journey begins, the pin 14 either remains in this unlocked position, so that it is always possible to open the door from outside or inside, or he depending on a parameter (for example "ignition on", "Detect that the door has been closed", presence of a certain one Minimum speed) in a central locking position (ZV), see above that it is possible to open the door from the inside, since that with the Inner door handle 3 connected coupling element 1.11 the pin 14 against the Pawl 1.9 can press, but the door cannot be opened from the outside as the pin 14 in the region of the recess 9 of the coupling element 1.11 is so that when the outer door handle 4 is actuated an idle stroke becomes. In Figure 3 it is also shown that the coupling member 11 and thus the pin 14 can be moved into a fourth position (child lock position KISI), in which then opening the door (especially the rear door) from the inside does not is more possible. The coupling element 1.11 connected to the outside door handle 4 is then designed so that this door can be accessed from the outside.

Regarding the described mode of operation of that shown in FIG. 3 Coupling device, it is also conceivable that the pin 14th moving from the unlocked position to the other positions. This has the advantage that normally the doors are opened immediately, i.e. without previous movement of the pin 14 is possible. This is particularly the case with Emergencies are an advantage. In the case where the pin 14 of its Unlocking position (or central locking or Child lock position) is moved to the anti-theft position enough time available. Alternatively, the pin 14 is in the central locking position and is a depending on the specifications Operator moved to the other positions.

In Figure 1 it is shown that the actuating device 2 is designed as an electromagnet is. Alternatively, the actuator is an electric motor downstream reduction gear or a stepper motor, so that it is the Actuating device allowed, the coupling element 2.6 defined in at least three, preferably move four positions. This can be the case with a Stepper motor by appropriate control in which Electromagnets or the electric motor are appropriate sensors for that End positions and the intermediate positions required. It is also conceivable that 2.6 stops are provided in the end regions for the coupling member.

So far it has been described that the actuating device 2 at least in Dependence on the operation of a handle (inside door handles 3, Outside door handles 4) wherein the actuation is detected by means of a switch can be activated. Alternatively, it is now also possible to omit a detection device (switch) for operating the handle Adjust actuator 2 depending on other parameters. Under 3, it is assumed, for example, that the Pin is in the "DS" position that pin 14 has assumed, after the vehicle is driven by an operator (e.g. driver) turned off and locked with a remote control. There is an opening of the door not possible in this position. If the operator wishes to open the Vehicle receives the control device 2 via the control device 10 the transmitter 10.9 a control signal and moves the pin 14 into the position "ENTR". This means that the door can be opened both from the inside and from the outside possible without the need for switches on the handle. in Dependency of other parameters such as switching on the ignition or exceeding a specifiable minimum speed receives the Actuating device 2, in turn, a control signal from the control device 10 and moves the pin 14 from the "ENTR" position to the "ZV" position in which the door is opened via the inside door handle 3, but not via the outside door handle 4 can be. the control device 10 is advantageously such trained that in the front doors of the pin 14 not in the "ZV" position, but is moved to the child lock position "KISI", in which the Front door only over the outside door handle 4, but not over the inside door handle 3 can be opened. All of this has the advantage that the actuating device 2 is activated when there is sufficient time to move the pin 14 between the possible positions is available and this for the case for which there is not enough time to adjust (For example in the event of a crash) the pin 14 is already in such a position (especially the "ZV" positions or alternatively the position "ENTR") in which the door has at least one handle (inside door handle 3 and / or outside door handle 4) can be opened. The same applies to the Construction as shown in Fig. 1 and also for similar or equivalent constructions. So, as an alternative to how it works, it was described for FIG. 2, a control of the actuating device 2 in Dependence on the operation of a handle is no longer required.

Claims (6)

1. Lock (1), in particular for motor vehicle doors or the like, having a rotary latch (1.1) which can be locked by a locking pawl (1.9) and can be released by the latter, in which a coupling link (2.6), which can be moved by an adjusting device (2) into at least three positions, can be driven moveably between a first position coupling a handle to the locking pawl (1.9) and a second position uncoupling the handle from the locking pawl (1.9), characterized in that the coupling link (2.6) can be driven moveably by the adjusting device (2) into a third position coupling the first handle and a second handle to the locking pawl (1.9).
2. Lock (1) according to Claim 1, characterized in that each handle (inside door handle 3, outside door handle 4) is connected via connecting elements to a respective coupling element (1.11) which can be coupled to the locking pawl (1.9) directly or indirectly as a function of the position of the coupling link (2.6).
3. Lock (1) according to Claim 2, characterized in that the coupling elements (1.11) have bearing surfaces (stops 1.26A and 1.26B) which do not overlap in their direction of movement, and the locking pawl (1.9) has a bearing surface (stop 1.27) which does not overlap with the bearing surfaces.
4. Lock (1) according to Claim 2, characterized in that the coupling elements (1.11) and/or the locking pawl (1.9) each have at least one recess (8, 9, 10) in which the coupling link (2.6), in particular a journal (14) of the coupling link (2.6), can engage without actuation of the locking pawl (1.9).
5. Lock (1) according to one of the preceding claims, characterized in that the adjusting device (2) or the coupling link (2.6) are assigned position-detecting means, with the adjusting device being controlled as a function of the detected position.
6. Lock (1) according to one of the preceding claims, characterized in that the adjusting device (2) is a stepping rotor.

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