EP0256401B1 - Control device, especially for locking motor car doors - Google Patents

Control device, especially for locking motor car doors Download PDF

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Publication number
EP0256401B1
EP0256401B1 EP87111141A EP87111141A EP0256401B1 EP 0256401 B1 EP0256401 B1 EP 0256401B1 EP 87111141 A EP87111141 A EP 87111141A EP 87111141 A EP87111141 A EP 87111141A EP 0256401 B1 EP0256401 B1 EP 0256401B1
Authority
EP
European Patent Office
Prior art keywords
slide
adjusting device
crank
crank pin
brake
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP87111141A
Other languages
German (de)
French (fr)
Other versions
EP0256401A1 (en
Inventor
Marcel Andrei-Alexandru
Heiner Bayha
Rainer Bruhn
Iris Maier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SWF Auto Electric GmbH
Original Assignee
SWF Auto Electric GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SWF Auto Electric GmbH filed Critical SWF Auto Electric GmbH
Publication of EP0256401A1 publication Critical patent/EP0256401A1/en
Application granted granted Critical
Publication of EP0256401B1 publication Critical patent/EP0256401B1/en
Expired legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00Power-actuated vehicle locks
    • E05B81/24Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/25Actuators mounted separately from the lock and controlling the lock functions through mechanical connections
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/18Mechanical movements
    • Y10T74/18056Rotary to or from reciprocating or oscillating
    • Y10T74/18248Crank and slide
    • Y10T74/18256Slidable connections [e.g., scotch yoke]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/19Gearing
    • Y10T74/19637Gearing with brake means for gearing

Definitions

  • the invention relates to an actuating device according to the features of the preamble of claim 1.
  • the crank can run out of the parking position after the drive motor has been switched off and, if necessary, even move the slide in the opposite direction, reducing the effective stroke and preventing manual adjustment of the output element .
  • the adjusting force of the motor is often insufficient to apply the necessary actuating force for the slide or the actuator that can be actuated by the actuating device. In such a case, the engine is blocked and the crank is also stopped outside the normal parking position.
  • the slide is coupled to the push rod via an overload spring, which enables the push rod to be switched from one end position to the other end position even when the adjustment movement of the slide is blocked, but this is a considerable one Force required because the overload spring must be designed so that it can transmit the adjustment force of the output element normally required.
  • the push rod is operatively connected to the motor vehicle door lock and practice has shown that in such a case the door lock can then no longer be unlocked using the key.
  • the present invention is therefore based on the object of improving and structurally simplifying an actuating device of the type mentioned at the outset with the simplest means with regard to operational safety and function.
  • the present invention is based on the knowledge that one can effectively avoid the above-mentioned malfunctions if one ensures that the crank is stopped by a braking device after each setting operation in a defined parking position.
  • This can be implemented in a structurally simple manner by means of a mechanical braking device which is pressed with a defined braking force against a braking surface on an element which is operatively connected to the drive motor.
  • This braking device is controlled in a simple manner by a switching curve, which is preferably formed in one piece with the crank.
  • the functional reliability of the actuating device can thus be significantly improved by only two additional components, namely a brake pad and a spring element. It is important that the braking force is precisely preset to a predetermined value by a spring element and does not depend on other influencing variables, for example the speed of rotation of the crank.
  • this braking device is intended to perform a further function. It is supposed to ensure that the drive motor can only start if its adjustment force is sufficient to adjust the actuator even when the battery supplying the motor is under voltage. This additional function is fulfilled by appropriate dimensioning of the braking force or the spring force of the spring element acting on the brake pad according to the features of claim 2.
  • Claim 4 indicates a structurally simple solution of such a braking device, in which the features of claim 5 ensure low-noise and wear-free operation, even if the brake pad and the worm are made of plastic.
  • the outlay on components is reduced, since the switching curve controlling the braking device is integrally formed directly onto the gearwheel which carries the crank pin eccentrically.
  • a design according to claim 18 is proposed, in which a spring-supported contact bridge is integrated into the gearwheel, which interacts with contact segments punched out of a circuit board and which are still fixed in the housing.
  • the gear wheel therefore takes on another function as a carrier for a spring-supported contact bridge.
  • Independent protection is also claimed for such a design because there are considerable cost advantages regardless of the specific design of the braking device or the additional coupling, in particular if connecting wires are clamped to bent connecting lugs according to the features of claims 20 and 21 without soldered or welded connections.
  • FIG. 1 In a housing 10, a slide 11 is guided to be longitudinally movable. This slide 11 is operatively connected to a push rod 12, which acts in a manner not shown as an output element of the actuating device on a door locking mechanism in a motor vehicle. On the slide 11, two stops 13 and 14 are provided which cooperate with the pin 15 of a crank 16. It can be seen from Fig. 1 that the distance A between the two stops 13 and 14 in the adjustment direction of the slide 11 is smaller than the radius of the crank, i.e. thus smaller than the distance of the pin 15 from the pivot point M. This enables a large stroke of the slide 11 for a given crank radius.
  • the distance B between the two stops 13 and 14 transverse to the adjustment direction of the slide 11 is only slightly larger than the diameter of the crank pin 15.
  • the crank pin 15 is located centrally between the adjustment paths of the two stops 13 and 14. In this park position the slide 11 is thus completely decoupled from the pin 15 or the crank 16 and the slide 11 with the push rod 12 can be easily changed manually from one end position to the other end position.
  • crank pin 15 If the electric motor driving the crank pin 15 is now switched on, the crank pin is adjusted clockwise on its circular adjustment path. He then finally stops at the stop 14. During the subsequent part of the pivoting movement of this crank pin 15, the stop 14 and thus the slide 11 are carried along until it finally reaches the position according to FIG. 1. The crank pin 15 is then stopped again after a swivel angle of 180 degrees in such a way that it lies centrally between the movement paths of the two stops 13 and 14. In this other parking position there is again a complete decoupling between the drive motor and the slide 11.
  • crank pin 15 is driven by a swivel angle of 180 degrees in the same direction of rotation in each setting operation.
  • one stop is moved out of the movement path of the crank pin during an adjustment process and the other stop is moved into the movement path of the crank pin for this purpose.
  • the crank pin 15 is coupled to the stops 13 and 14 only during part of its pivoting movement, but is decoupled from the slide 11 in the parking positions after a pivoting angle of 180 degrees in each case.
  • crank pin 15 extends beyond its normal parking position and for example assumes the position shown in dashed lines in Fig. 1b.
  • crank pin 15 strikes the stop 14, but is not able to move the slide 11 due to an insufficient adjustment force.
  • the slide can no longer be moved. In the event of a fault, the door could no longer be unlocked.
  • a central door locking system in a motor vehicle usually includes a plurality of actuating devices, at least one actuating device being designed as a control device, via which the other actuating devices can be controlled.
  • actuating devices such as a control device is shown in FIGS. 2 to 14. 15 to 21, on the other hand, show an actuating device which has no control switch for controlling other actuating devices.
  • FIGS. 2 to 14 show an actuating device which has no control switch for controlling other actuating devices.
  • 20 denotes an electric motor that serves as a drive motor for the actuating device.
  • a worm 22 is fixed in a rotationally fixed manner and has, near the electric motor, a threadless cylindrical section 23 whose outer surface serves as a braking surface 24, the function of which will be described later.
  • the worm 22 drives a toothed wheel 26 via an intermediate wheel 25, which is shown in more detail in FIGS. 6 to 9.
  • the crank pin 15, which cooperates with the stops 13, 14 on the slide 11, projects eccentrically from one end face 27 of this gear wheel 26.
  • This gearwheel 26 with the crank arm 15 thus forms the crank 16 mentioned in FIG. 1.
  • a brake pad 30 is displaceably guided in the housing 10 transversely to the axis of rotation of the screw 22 and, as shown in FIG. 4, has an L-shaped cross section.
  • a braking surface 32 is formed on the shorter leg 31, the contour of which is adapted to the braking surface 24 on the cylindrical section 23 of the worm 22.
  • a compression spring 33 supported on a wall of the housing 10 presses this brake pad 30 with its braking surface from one side against the braking surface 24 on the worm 22.
  • the longer leg of the brake pad 30 serves as a switching plunger 34 for displacing the brake block 30.
  • This switching plunger protrudes the side opposite the braking surface 32 into the effective range of a switching curve 35, which is integrally formed as a circumferential collar on the gearwheel 26, that is to say is operatively connected to the crank.
  • This switching curve 35 can best be seen in FIG. 6.
  • this switching curve each has a section 36 which is set back radially to such an extent that there is no longer any contact between the switching curve and the switching plunger 34 on the brake pad 30 in this section .
  • These recessed sections lie in an angular range W, which determines the two parking positions of the gear 26 and the crank 16.
  • the brake pad 30 belonging to a braking device designated overall by 37 is not influenced by the switching curve 35.
  • the braking surface 32 on the brake pad is pressed with a defined braking force, which essentially depends on the force of the compression spring 33, against the braking surface 24 on the worm 22, that is, generally an element operatively connected to the electric motor. If the electric motor is now switched on and its adjusting force is above a certain value, the gear 26 and thus also the switching curve 35 rotates, so that after a short angle of rotation, i.e.
  • the crank pin 15 strikes a stop 13, 14 and at the same time via the Switching curve 35 of the switching plunger 34 is adjusted in the direction of arrow P.
  • the two braking surfaces 24 and 32 no longer touch each other and the full torque of the electric motor is used to adjust the disc.
  • the switching plunger 34 can move back into the recessed section 36 of the switching curve 35 and the two braking surfaces 24 and 32 rest against each other again.
  • a mechanical braking device 37 is thus realized, which stops the gearwheel 26 or the crank 16 in a defined angular range W after each setting operation. Outside this angular range, however, this braking device is released.
  • a certain braking force is defined. This depends on the rigidity of the compression spring 33 and on the size of the braking surfaces 24 and 32 and their surface properties. In the case of a specific embodiment, the braking surfaces have been given the smoothest possible surface and a lubricant has also been introduced between the braking surfaces. With these measures, the wear of the braking surfaces on the worm, which is usually made of plastic and the brake pad and operating noise, which is also made of plastic, can be reduced, although a sufficient braking force can be achieved with a relatively low spring force.
  • the braking force has now been set so that the motor can only start if its adjusting force is above a minimum value, which is sufficient even under the most unfavorable conditions for adjusting the slide or in the intended application of the door lock.
  • the braking force of this mechanical braking device cannot be overcome, so that the crank does not run out of the park position and could block manual adjustment of the slide.
  • the braking device therefore fulfills two functions. It ensures that the crank is locked in the parking position is set and thus prevents chasing.
  • the braking device checks at the beginning of each adjustment process whether the adjustment force of the electric motor corresponds to the prescribed values and only in this case can an adjustment operation begin at all. Because of this double function of the controlled mechanical braking device, the operational safety of the actuating device is significantly improved.
  • the adjustment path of the slide is deliberately designed to be larger than the desired adjustment path on the output element, that is to say, for example, the lock, so that even in the event of unfavorable tolerances in the movement transmission linkage, a reliable switching of the output element is reliably ensured.
  • a spring-loaded clutch 40 which only triggers in the event of a fault, is therefore built into the power transmission path between the motor and the slide. This clutch is realized in that the crank pin 15 is adjustably guided on the gear 26.
  • the gear 26 has a through bore 41 parallel to the axis of rotation D, in which this crank pin 15 is guided.
  • This bore 41 is closed on the end face 28 side by a support plate 42, on which a compression spring 43 is supported as a spring element, which presses the crank pin 15 into the path of movement of the stops 13, 14.
  • the support plate 42 has two vertically projecting legs 44, each with a locking lug 45, which protrude into guide grooves 46 on the gearwheel 26 and engage there behind a stop 47 and thus fix the support plate on the gearwheel in the axial direction.
  • This clutch 40 ensures that the gear 26 is still used in its parked position if the slide 11 is stiff or blocked.
  • the crank pin 15 is axially displaced in the direction of the arrow R and is then no longer in the adjustment path of these stops 13, 14, so that a smooth manual adjustment of the slide is ensured.
  • the feature contributes to this that the adjustment path of the crank pin 15 is limited by stops 49 in such a way that its end face does not abut the slide 11, as shown in FIG. 3. If, due to a power failure, the crank pin is in the path of movement of a stop, this crank pin can be reset by manually adjusting the slide and thus the slide can also be adjusted. If the adjustment range of the slide is greater than the adjustment range of the output element, the clutch is triggered with every adjustment process. As soon as the crank pin is behind the stop, smooth, manual adjustment of the slide is possible at least in one adjustment direction.
  • the adjustable crank pin 15 and the stops 13, 14 are provided with inclined contact surfaces 48 which are intended to enable the clutch 40 to be released smoothly. Due to this design, it can be expected that forces 11 act transversely to the direction of adjustment on the slide. These forces are to be absorbed via rollers 49 which roll along a cover 18 which closes the housing 10.
  • rollers 49 which roll along a cover 18 which closes the housing 10.
  • this coupling 40 is arranged between the drive motor 20 and the slider 11, the slider 11 and the push rod 12 can be inexpensively manufactured in one piece from plastic, which is shown in FIG . 10 emerges.
  • Such an actuating device is usually controlled via a manually adjustable operating switch, the electric motor then being automatically switched off again after each rotation angle of 180 ° via a limit switch.
  • a switching disk has previously been fixed on the gearwheel 26, on which individual contact springs, each separately fixed to the housing, grind.
  • the operating switch is coupled to the slide or the push rod. Individual fixed contacts have also been defined in the housing to form this operating switch. Due to the many individual contacts, assembly was very time-consuming.
  • a contact bridge 60 with three contact points 61, 62 and 63 is resiliently supported on the gear 26.
  • This contact bridge 60 interacts with contact segments 70 which are punched out of a circuit board and are initially at least partially connected via connecting webs 71 which are only opened in the housing 10 after the circuit board has been installed.
  • Such a circuit board having a plurality of contact segments 70 and supply webs 72 or contact surfaces 73 to 76 connected integrally therewith is shown in FIG. 12, it being apparent from the section in FIG. 13 that individual supply webs 72a have a section in another plane, with which without Danger of contact line crossings can be realized.
  • the use of leads or contact segments punched out from a circuit board is, for. B. known in automotive lights, so that further explanations are unnecessary.
  • the contact bridge 60 is springy integrated directly into the gear 26 and thus this gear takes on a further function. It is also important that the contact surfaces 73 to 76 are also punched out directly from this board, which are connected to a further contact bridge 77 cooperate, which is resiliently supported on the slide 11 or the part of the push rod 12 lying within the housing, as clearly shown in FIGS. 10 and 11. Together with the contact bridge, these contact surfaces thus form the operating switch, which is designated 78 in FIG. 14 as a whole.
  • the contact point 62 continuously grinds on a contact segment 70a with a small radius.
  • the contact point 61 grinds on the contact segments 70b to 70e with the largest radius.
  • the contact point 63 finally grinds on the contact segments 70f and 70g.
  • connection tabs 85 protruding at right angles are formed on individual contact segments, supply webs or contact surfaces, which have two arms 86, 87 arranged at a distance from one another, between which connecting wires of power supply lines or components are brazed without soldering. From FIG. 12 it can be seen that several of these connecting lugs 85 are fixed in spatial association with one another on the housing, on which the current leads or control signal lines combined in a cable 88 and the leads leading to the electric motor are then fixed.
  • the strip 89 shown in FIGS. 22 and 23 serves to secure and relieve the strain on the lines.
  • connection wires of diodes 90 are fixed to connection lugs 85 arranged in pairs.
  • FIGS. 17 and 18 belonging to this embodiment show that at least one spring tongue 95 protrudes in one piece from the slide 11, which spring tongue is spring-loaded in the direction of a housing wall and is supported on it in a sliding manner.
  • the guidance of the slide is to be improved by means of this spring tongue 95, the spring tongue 95 compensating for unavoidable play.
  • This task is carried out by the spring-supported contact bridge 77 for the slide in the other embodiment.
  • 19 and 20 also show the circuit board with the individual contact segments for this embodiment.
  • the circuit diagram according to FIG. 20 belongs to this embodiment, from which it can be seen that a latching circuit for the electric motor 20 is in turn switched via a switching contact 80. This self-holding circuit is switched via one of the two diodes 90, as a result of which a supply line to this actuating device can be saved.

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  • Power-Operated Mechanisms For Wings (AREA)
  • Transmission Devices (AREA)
  • Lock And Its Accessories (AREA)

Description

Die Erfindung bezieht sich auf eine Stelleinrichtung gemäß den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to an actuating device according to the features of the preamble of claim 1.

Eine Stelleinrichtung mit diesen Merkmalen ist aus der US-A 3 243 216 bekannt. Gegenüber anderen bekannten Ausführungen hat diese Stelleinrichtung den Vorteil, daß in den Endlagen das Abtriebselement vom Antriebsmotor vollständig entkoppelt ist, so daß eine leichtgängige manuelle Verstellung des Abtriebselementes möglich ist. Vorteilhaft ist weiter der verhältnismäßig geringe Steuerungsaufwand für den Antriebsmotor, der sich nur in einer Drehrichtung dreht. Allerdings entspricht diese bekannte Anlage nach der US-A 3 243 216 nicht allen Anforderungen hinsichtlich der Betriebssicherheit. Im Störungsfalle kann nämliche die Kurbel außerhalb ihrer Parklage stehenbleiben, so daß dann eine Verstellung des Schiebers nicht mehr möglich ist. Insbesondere bei Überspannung und einem leichtgängigen Verstellmechanismus kann abhängig vom Trägheitsmoment der sich drehenden Teile die Kurbel nach dem Abschalten des Antriebsmotors über den Bereich der Parklage hinauslaufen und gegebenenfalls sogar den Schieber in Gegenrichtung bewegen, wodurch der effektive Hub verkleinert und die manuelle Verstellung des Abtriebselementes verhindert wird. Andererseits reicht oftmals bei Unterspannung die Verstellkraft des Motors nicht aus, um die notwendige Betätigungskraft für den Schieber bzw. das von der Stelleinrichtung betätigbare Stellglied aufzubringen. In einem solchen Fall wird also der Motor blockiert, wobei ebenfalls die Kurbel außerhalb der normalen Parkstellung stillgesetzt wird.An actuating device with these features is known from US Pat. No. 3,243,216. Compared to other known designs, this actuating device has the advantage that the output element is completely decoupled from the drive motor in the end positions, so that smooth manual adjustment of the output element is possible. Another advantage is the relatively low control effort for the drive motor, which only rotates in one direction of rotation. However, this known system according to US Pat. No. 3,243,216 does not meet all requirements with regard to operational safety. In the event of a malfunction, the crank can stop outside of its parking position, so that adjustment of the slide is no longer possible. Especially with overvoltage and a smooth-running adjustment mechanism, depending on the moment of inertia of the rotating parts, the crank can run out of the parking position after the drive motor has been switched off and, if necessary, even move the slide in the opposite direction, reducing the effective stroke and preventing manual adjustment of the output element . On the other hand, in the event of undervoltage, the adjusting force of the motor is often insufficient to apply the necessary actuating force for the slide or the actuator that can be actuated by the actuating device. In such a case, the engine is blocked and the crank is also stopped outside the normal parking position.

Zwar ist bei dieser bekannten Ausführung der Schieber mit der Schubstange über eine Überlastfeder gekoppelt, die es ermöglicht, daß die Schubstange von der einen Endlage in die andere Endlage auch dann umgestellt werden kann, wenn die Verstellbewegung des Schiebers blockiert ist, doch ist dazu ein beträchtlicher Kraftaufwand notwendig, denn die Überlastfeder muß so ausgelegt sein, daß sie die normalerweise notwendige Verstellkraft des Abtriebselementes übertragen kann. Bei den meisten Anwendungsfällen ist jedoch die Schubstange mit dem Kraftfahrzeugtürschloß wirkverbunden und die Praxis hat gezeigt, daß dann in einem solchen Falle das Türschloß mittels des Schlüssels nicht mehr entriegelt werden kann.In this known embodiment, the slide is coupled to the push rod via an overload spring, which enables the push rod to be switched from one end position to the other end position even when the adjustment movement of the slide is blocked, but this is a considerable one Force required because the overload spring must be designed so that it can transmit the adjustment force of the output element normally required. In most applications, however, the push rod is operatively connected to the motor vehicle door lock and practice has shown that in such a case the door lock can then no longer be unlocked using the key.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Stelleinrichtung der eingangs genannten Art mit einfachsten Mitteln hinsichtlich der Betriebssicherheit und Funktion zu verbessern und konstruktiv zu vereinfachen.The present invention is therefore based on the object of improving and structurally simplifying an actuating device of the type mentioned at the outset with the simplest means with regard to operational safety and function.

Diese Aufgabe wird erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst.This object is achieved with the characterizing features of claim 1.

Der vorliegenden Erfindung liegt dabei die Erkenntnis zugrunde, daß man die genannten Störungsfälle wirksam vermeiden kann, wenn man dafür sorgt, daß durch eine Bremseinrichtung die Kurbel nach jedem Stellvorgang in einer definierten Parklage stillgesetzt wird. Dies kann auf konstruktiv einfache Weise mittels einer mechanischen Bremseinrichtung realisiert werden, die mit einer definierten Bremskraft gegen eine Bremsfläche an einem mit dem Antriebsmotor wirkverbundenen Element gedrückt wird. Diese Bremseinrichtung wird dabei auf einfache Weise von einer Schaltkurve gesteuert, die vorzugsweise einstückig mit der Kurbel ausgebildet ist. Die Funktionssicherheit der Stelleinrichtung kann also durch nur zwei zusätzliche Bauelemente, nämlich einen Bremsklotz und ein Federelelement wesentlich verbessert werden. Wichtig ist dabei, daß die Bremskraft durch ein Federelemnt exakt auf einen vorgegebenen Wert voreingestellt ist und nicht von anderen Einflußgrößen, beispielsweise der Drehgeschwindigkeit der Kurbel abhängt.The present invention is based on the knowledge that one can effectively avoid the above-mentioned malfunctions if one ensures that the crank is stopped by a braking device after each setting operation in a defined parking position. This can be implemented in a structurally simple manner by means of a mechanical braking device which is pressed with a defined braking force against a braking surface on an element which is operatively connected to the drive motor. This braking device is controlled in a simple manner by a switching curve, which is preferably formed in one piece with the crank. The functional reliability of the actuating device can thus be significantly improved by only two additional components, namely a brake pad and a spring element. It is important that the braking force is precisely preset to a predetermined value by a spring element and does not depend on other influencing variables, for example the speed of rotation of the crank.

Gemäß einer besonders bevorzugten Weiterbildung soll diese Bremseinrichtung eine weitere Funktion erfüllen. Sie soll nämlich sicherstellen, daß der Antriebsmotor nur anlaufen kann, wenn dessen Verstellkraft auch bei Unterspannung der den Motor speisenden Batterie zur Verstellung des Stellgliedes ausreicht. Diese zusätzliche Funktion wird durch entsprechende Dimensionierung der Bremskraft bzw. der Federkraft des den Bremsklotz beaufschlagenden Federelementes gemäß den Merkmalen des Anspruchs 2 erfüllt.According to a particularly preferred development, this braking device is intended to perform a further function. It is supposed to ensure that the drive motor can only start if its adjustment force is sufficient to adjust the actuator even when the battery supplying the motor is under voltage. This additional function is fulfilled by appropriate dimensioning of the braking force or the spring force of the spring element acting on the brake pad according to the features of claim 2.

Mit den Merkmalen des Anspruchs 3 wird eine besonders gute und genaue Bremswirkung erzielt, weil der Bremsklotz an einem Element mit hoher Drehgeschwindigkeit angreift. Anspruch 4 kennzeichnet eine konstruktiv einfache Lösung einer solchen Bremseinrichtung, bei der mit den Merkmalen des Anspruchs 5 ein geräuscharmer und verschleißfreier Betrieb sichergestellt wird, auch wenn der Bremsklotz und die Schnecke aus Kunststoff hergestellt sind.With the features of claim 3, a particularly good and accurate braking effect is achieved because the brake block acts on an element with high rotational speed. Claim 4 indicates a structurally simple solution of such a braking device, in which the features of claim 5 ensure low-noise and wear-free operation, even if the brake pad and the worm are made of plastic.

Mit den Merkmalen des Anspruchs 6 wird der Bauteileaufwand verringert, denn die die Bremseinrichtung steuernde Schaltkurve wird einstückig direkt an das Zahnrad angeformt, das exzentrisch den Kurbelzapfen trägt.With the features of claim 6, the outlay on components is reduced, since the switching curve controlling the braking device is integrally formed directly onto the gearwheel which carries the crank pin eccentrically.

Mit den Merkmalen des Anspruchs 7 wird die Betriebssicherheit weiter erhöht, weil durch eine zusätzliche Kupplung sichergestellt wird, daß in jeder Lage der Kurbel der Schieber nach nur kurzzeitigem Kraftaufwand leichtgängig verstellbar ist. Dabei wird eine Konstruktion bevorzugt, bei der diese zusätzliche Kupplung gewissermaßen in das Zahnrad integriert ist, das damit kostengünstig eine weitere Funktion übernimmt. Diese wird auf konstruktiv einfache Weise mit den Merkmalen des Anspruchs 8 erreicht wird. Der Kurbelzapfen könnte dabei radial auslenkbar an diesem Zahnrad geführt sein, doch wird eine Führung des Kurbelzapfens parallel zur Drehachse des Zahnrades bbevorzugt, weil damit kein zusätzlicher Platzbedarf verbunden ist, wenn man die Merkmale des Anspruches 11 realisiert.With the features of claim 7, the operational safety is further increased, because an additional clutch ensures that the slide can be easily adjusted in any position of the crank after only a short effort. In this case, a construction is preferred in which this additional clutch is, as it were, integrated into the gearwheel, which thus takes over a further function at low cost. This is achieved in a structurally simple manner with the features of claim 8. The crank pin could be guided radially deflectable on this gear, but guidance of the crank pin parallel to the axis of rotation of the gear b is preferred, because this does not require any additional space if the features of claim 11 are realized.

Die Ausbildung gemäß den Merkmalen der Ansprüche 7 bis 17 in Verbindung mit den Merkmalen der Ansprüche 1 bis 6 wird bevorzugt, weil damit kostengünstig mehrere Funktionen in ein Bauteil integriert werden. Es wird aber bei dieser Gelegenheit darauf hingewiesen, daß für diese Ausbildung gemäß Anspruch 7 und der darauf rückbezogenen Ansprüche selbständiger Schutz beansprucht wird, weil ein solche Ausbildung auch dann mit Vorteil realisiert werden kann, wenn man auf eine mechanische Bremseinrichtung verzichten kann.The embodiment according to the features of claims 7 to 17 in connection with the features of claims 1 to 6 is preferred because several functions can be integrated in a component at low cost. It is pointed out on this occasion that ge for this training independent protection is claimed according to claim 7 and the claims referring to it, because such training can also be advantageously implemented if one can do without a mechanical braking device.

Zur Steuerung der Stelleinrichtung war an diesem Zahnrad bisher eine Schaltscheibe fixiert, die mit einzelnen ortsfesten Kontaktfedem zusammenwirkte. An Schieber oder der Schubstange war eine Kontaktbrücke angebracht, die ebenfalls mit einzeln im Gehäuse festgeigten Gegenkontakten zusammenwirkte. Eine solche Konstruktion ist hinsichtlich der Montage sehr aufwendig.To control the actuating device, a switching disk was previously fixed to this gearwheel, which interacted with individual fixed contact springs. A contact bridge was attached to the slide or the push rod, which also interacted with mating contacts individually fixed in the housing. Such a construction is very complex in terms of assembly.

Zur Vereinfachung wird eine Ausbildung gemäß Anspruch 18 vorgeschlagen, bei der eine federnd abgestützte Kontaktbrücke in das Zahnrad integriert ist, die mit aus eine Platine ausgestanzten Kontaktsegmenten, die im Gehäuse noch zusammenhängend festgelegt werdend, zusammenwirkt. Das Zahnrad übernimmt also einer weitere Funktion als Träger für eine federnd abgestützte Kontaktbrücke. Auch für eine solche Ausbildung wird selbständiger Schutz beansprucht, weil sich unabhängig von der konkreten Ausbildung der Bremseinrichtung oder der zusätzlichen Kupplung erhebliche Kostenvorteile ergeben, insbesondere wenn man gemäß den Merkmalen der Ansprüche 20 und 21 ohne Löt- oder Schweißverbindung an abgebogenen Anschlußlaschen Anschlußdrähte festklemmt.For simplification, a design according to claim 18 is proposed, in which a spring-supported contact bridge is integrated into the gearwheel, which interacts with contact segments punched out of a circuit board and which are still fixed in the housing. The gear wheel therefore takes on another function as a carrier for a spring-supported contact bridge. Independent protection is also claimed for such a design because there are considerable cost advantages regardless of the specific design of the braking device or the additional coupling, in particular if connecting wires are clamped to bent connecting lugs according to the features of claims 20 and 21 without soldered or welded connections.

Die Erfindung und deren vorteilhafte Ausgestaltungen werden nachstehend anhand der in der Zeichnung dargestellten Ausführungsbeispiele näher erläutert. Es zeigen:

  • Fig. 1 eine Prinzipdarstellung einer Verstelleinrichtung,
  • Fig. 2 eine Ansicht auf eine erste Ausführung einer Stelleinrichtung,
  • Fig. 3 einen Schnitt entlang der Schnittlinie II-II,
  • Fig. 4 einen Teilschnitt entlang der Schnittlinie 111-III,
  • Fig. 5 einen Schnitt entlang der Schnittlinie IV-IV,
  • Fig. 6 eine Ansicht des Kurbelzahnrades,
  • Fig. 7 einen Schnitt entlang der Schnittlinie VII-VII,
  • Fig. 8 einen Teilschnitt entlang der Schnittlinie VI-II-VIII,
  • Fig. 9 einen Teilschnitt entlang der Schnittlinie lX-IX,
  • Fig.10 einen Längsschnitt durch Schubstange und Schieber,
  • Fig.11 einen Schnitt entlang der Schnittlinie XI-XI,
  • Fig.12 eine Ansicht auf eine Platine mit Kontaktsegmenten
  • Fig.13 einen Teilschnitt durch die Platine,
  • Fig. 14 ein Schaltbild für diese erste Ausführung einer Stelleinrichtung,
  • Fig.15 eine Ansicht einer zweiten Ausführung einer Stelleinrichtung,
  • Fig.16 einen Längsschnitt durch diese zweite Ausführung,
  • Fig.17 einen Längsschnit durch Schubstange und Schieber,
  • Fig.18 einen Querschnitt längs der Schnittlinie XVIII-XVIII,
  • Fig.19 eine Ansicht auf die Platine,
  • Fig.20 einen Teilschnitt durch die Platine,
  • Fig.21 ein Schaltbild zu der zweiten Ausführungsform
  • Fig.22 eine Ansicht auf eine Steckleiste und
  • Fig.23 einen Längsschnitt durch diese Steckleiste.
The invention and its advantageous embodiments are explained in more detail below with reference to the exemplary embodiments shown in the drawing. Show it:
  • 1 is a schematic diagram of an adjusting device,
  • 2 is a view of a first embodiment of an actuating device,
  • 3 shows a section along the section line II-II,
  • 4 shows a partial section along the section line 111-III,
  • 5 shows a section along the section line IV-IV,
  • 6 is a view of the crank gear,
  • 7 shows a section along the section line VII-VII,
  • 8 is a partial section along the section line VI-II-VIII,
  • 9 is a partial section along the section line IX-IX,
  • 10 shows a longitudinal section through the push rod and slide,
  • 11 shows a section along the section line XI-XI,
  • 12 shows a view of a circuit board with contact segments
  • 13 shows a partial section through the circuit board,
  • 14 is a circuit diagram for this first embodiment of an actuating device,
  • 15 is a view of a second embodiment of an actuating device,
  • 16 shows a longitudinal section through this second embodiment,
  • 17 shows a longitudinal section through the push rod and slide,
  • 18 shows a cross section along the section line XVIII-XVIII,
  • Fig. 19 is a view of the board,
  • 20 shows a partial section through the board,
  • Fig. 21 is a circuit diagram for the second embodiment
  • Fig. 22 is a view of a header and
  • Fig. 23 shows a longitudinal section through this header.

Zunächst wird anhand von Fig. 1 die prinzipielle Funktionen einer Verstelleinrichtung beschrieben, auf die sich die vorliegende Erfindung bezieht. In einem Gehäuse 10 ist ein Schieber 11 längsbeweglich geführt. Dieser Schieber 11 ist mit einer Schubstange 12 wirkverbunden, die in nicht näher dargesteller Weise als Abtriebselement der Stelleinrichtung auf einen Türverriegelungsmechanismus in einem Kraftfahrzeug wirkt. An dem Schieber 11 sind zwei Anschläge 13 und 14 vorgesehen, die mit dem Zapfen 15 einer Kurbel 16 zusammenwirken. Man erkannt aus Fig. 1, daß der Abstand A zwischen den beiden Anschlägen 13 und 14 in Verstellrichtung des Schiebers 11 kleiner ist als der Radius der Kurbel, d.h. also kleiner als der Abstand des Zapfens 15 vom Drehpunkt M. Dies ermöglicht einen großen Hub des Schiebers 11 bei einem gegebenen Kurbelradius. Der Abstand B der beiden Anschläge 13 und 14 quer zur Verstellrichtung des Schiebers 11 ist nur geringfügig größer als der Durchmesser des Kurbelzapfens 15. In der dargestellten einen Parklage befindet sich der Kurbelzapfen 15 mittig zwischen den Verstellbahnen der beiden Anschläge 13 und 14. In dieser Parklage ist also der Schieber 11 von dem Zapfen 15 bzw. der Kurbel 16 vollständig entkoppelt und der Schieber 11 mit der Schubstange 12 kann leichtgängig manuell von einer Endlage in die andere Endlage umgestellt werden.First, the basic functions of an adjusting device to which the present invention relates will be described with reference to FIG. 1. In a housing 10, a slide 11 is guided to be longitudinally movable. This slide 11 is operatively connected to a push rod 12, which acts in a manner not shown as an output element of the actuating device on a door locking mechanism in a motor vehicle. On the slide 11, two stops 13 and 14 are provided which cooperate with the pin 15 of a crank 16. It can be seen from Fig. 1 that the distance A between the two stops 13 and 14 in the adjustment direction of the slide 11 is smaller than the radius of the crank, i.e. thus smaller than the distance of the pin 15 from the pivot point M. This enables a large stroke of the slide 11 for a given crank radius. The distance B between the two stops 13 and 14 transverse to the adjustment direction of the slide 11 is only slightly larger than the diameter of the crank pin 15. In the one park position shown, the crank pin 15 is located centrally between the adjustment paths of the two stops 13 and 14. In this park position the slide 11 is thus completely decoupled from the pin 15 or the crank 16 and the slide 11 with the push rod 12 can be easily changed manually from one end position to the other end position.

Wird nun der den Kurbelzapfen 15 antreibende Elektromotor eingeschaltet, wird der Kurbelzapfen auf seiner kreisförmigen Verstellbahn in Uhrzeigerrichtung verstellt. Er schlägt dann schließlich an dem Anschlag 14 an. Während des darauf folgenden Teils der Schwenkbewegung dieses Kurbelzapfens 15 wird der Anschlag 14 und damit der Schieber 11 mitgenommen, bis er schließlich die Lage nach Fig. 1 erreicht. Der Kurbelzapfen 15 wird dann nach einem Schwenkwinkel von 180 Grad wieder derart stillgesetzt, daß er mittig zwischen den Bewegungsbahnen der beiden Anschläge 13 und 14 liegt. In dieser anderen Parklage ist also wiederum eine vollständige Entkopplung zwischen dem Antriebsmotor und dem Schieber 11 gegeben.If the electric motor driving the crank pin 15 is now switched on, the crank pin is adjusted clockwise on its circular adjustment path. He then finally stops at the stop 14. During the subsequent part of the pivoting movement of this crank pin 15, the stop 14 and thus the slide 11 are carried along until it finally reaches the position according to FIG. 1. The crank pin 15 is then stopped again after a swivel angle of 180 degrees in such a way that it lies centrally between the movement paths of the two stops 13 and 14. In this other parking position there is again a complete decoupling between the drive motor and the slide 11.

Insgesamt erkennt man also aus den Fig. 1a und 1b, daß der Kurbelzapfen 15 bei jedem Stellvorgang jeweils um einen Schwenkwinkel von 180 Grad in gleicher Drehrichtung angetrieben wird. Dabei wird bei einem Stellvorgang der eine Anschlag aus der Bewegungsbahn des Kurbelzapfens herausbewegt und dafür der andere Anschlag in die Bewegungsbahn des Kurbelzapfens eingefahren. Der Kurbelzapfen 15 ist nur während eines Teils seiner Schwenkbewegung mit den Anschlägen 13 bzw. 14 gekoppelt, in den Parklagen nach jeweils einem Schwenkwinkel von 180 Grad aber von dem Schieber 11 entkoppelt.Overall, it can be seen from FIGS. 1a and 1b that the crank pin 15 is driven by a swivel angle of 180 degrees in the same direction of rotation in each setting operation. In this case, one stop is moved out of the movement path of the crank pin during an adjustment process and the other stop is moved into the movement path of the crank pin for this purpose. The crank pin 15 is coupled to the stops 13 and 14 only during part of its pivoting movement, but is decoupled from the slide 11 in the parking positions after a pivoting angle of 180 degrees in each case.

Wird nun eine solche Stelleinrichtung bei Überspannung betrieben, kann es vorkommen, daß der Kurbelzapfen 15 über seine normale Parklage hinausläuft und beispielsweise die in Fig. 1b gestrichelt eingezeichnete Lage einnimmt. Bei Betrieb mit Unterspannung kann es vorkommen, daß der Kurbelzapfen 15 an dem Anschlag 14 anschlägt, aber aufgrund einer zu geringen Verstellkraft nicht in der Lage ist, den Schieber 11 zu bewegen. Auch bei dieser in Fig. 1a gestrichelt eingezeichneten Position des Kurbelzapfens kann der Schieber nicht mehr bewegt werden. Im Störungsfalle könnte damit die Tür nicht mehr entriegelt werden. Derartige Probleme sollen mit der vorliegenden Erfindung beseitigt werden.Now such an adjusting device Operated overvoltage, it can happen that the crank pin 15 extends beyond its normal parking position and for example assumes the position shown in dashed lines in Fig. 1b. When operating with undervoltage, it can happen that the crank pin 15 strikes the stop 14, but is not able to move the slide 11 due to an insufficient adjustment force. Even in this position of the crank pin shown in dashed lines in FIG. 1a, the slide can no longer be moved. In the event of a fault, the door could no longer be unlocked. Such problems are intended to be eliminated with the present invention.

Üblicherweise gehören zu einer zentralen Türverriegelungsanlage in einem Kraftfahrzeuge mehrere Stelleinrichtungen, wobei mindestens eine Stelleinrichtung als Steuergerät ausgebildet ist, über die die anderen Stelleinrichtungen steuerbar sind. Ein derartiges Steuergerät ist in den Fig. 2 bis 14 dargestellt. Die Fig. 15 bis 21 zeigen dagegen eine Stelleinrichtung, die keinen Steuerschalter zur Ansteuerung anderer Stelleinrichtungen aufweist. Wie die Zeichnungen und die nachfolgende Beschreibung zeigen, sind aber beide Ausführungen in wesentlichen Merkmalen identisch aufgebaut.A central door locking system in a motor vehicle usually includes a plurality of actuating devices, at least one actuating device being designed as a control device, via which the other actuating devices can be controlled. Such a control device is shown in FIGS. 2 to 14. 15 to 21, on the other hand, show an actuating device which has no control switch for controlling other actuating devices. As the drawings and the following description show, however, both versions are constructed identically in essential features.

In Fig.2 ist mit 20 ein Elektromotor bezeichnet, der als Antriebsmotor für die Stelleinrichtung dient. Auf der Antriebswelle 21 dieses Elektromotors ist drehfest eine Schnecke 22 fixiert, die nahe dem Elektromotor einen gewindelosen zylindrischen Abschnitt 23 aufweist, dessen Mantelfläche als Bremsfläche 24 dient, deren Funktion später noch beschrieben wird. Die Schnecke 22 treibt über ein Zwischenrad 25 ein Zahnrad 26 an, das genauer in den Fig. 6 bis 9 dargestellt ist. Aus der einen Stirnfläche 27 dieses Zahnrades 26 steht exzentrisch der Kurbelzapfen 15 hervor, der mit den Anschlägen 13,14 am Schieber 11 zusammenarbeitet. Dieses Zahnrad 26 mit dem Kurbelzpafen 15 bildet also die zu Fig. 1 erwähnte Kurbel 16.In FIG. 2, 20 denotes an electric motor that serves as a drive motor for the actuating device. On the drive shaft 21 of this electric motor, a worm 22 is fixed in a rotationally fixed manner and has, near the electric motor, a threadless cylindrical section 23 whose outer surface serves as a braking surface 24, the function of which will be described later. The worm 22 drives a toothed wheel 26 via an intermediate wheel 25, which is shown in more detail in FIGS. 6 to 9. The crank pin 15, which cooperates with the stops 13, 14 on the slide 11, projects eccentrically from one end face 27 of this gear wheel 26. This gearwheel 26 with the crank arm 15 thus forms the crank 16 mentioned in FIG. 1.

In dem Gehäuse 10 ist quer zur Drehachse der Schnecke 22 ein Bremsklotz 30 verschiebbar geführt, der - wie Fig. 4 zeigt - einen L-förmigen Querschnitt aufweist. An dem kürzeren Schenkel 31 ist eine Bremsfläche 32 ausgebildet, deren Kontur der Bremsfläche 24 an dem zylindrischen Abschnitt 23 der Schnecke 22 angepaßt ist. Eine an einer Wand des Gehäuses 10 abgestützte Druckfeder 33 drückt diesen Bremsklotz 30 mit seiner Bremsfläche von der einen Seite gegen die Bremsfläche 24 an der Schnecke 22. Der längere Schenkel des Bremsklotzes 30 dient als Schaltstößel 34 zur Verschiebung des Bremsklotzes 30. Dieser Schaltstößel ragt auf der der Bremsfläche 32 gegenüberliegenden Seite in den Wirkungsbereich einer Schaltkurve 35, die einstückig als umlaufender Kragen an das Zahnrad 26 angeformt ist, also mit der Kurbel wirkverbunden ist. Diese Schaltkurve 35 erkennt man am besten in Fig. 6. Auf diametral gegenüberliegenden Seiten hat diese Schaltkurve jeweils einen Abschnitt 36, der radial so weit zurückgesetzt ist, daß in diesem Abschnitt kein Kontakt mehr zwischen der Schaltkurve und dem Schaltstößel 34 am Bremsklotz 30 gegeben ist. Diese zurückgesetzten Abschnitte liegen in einem Winkelbereich W, der die beiden Parklagen des Zahnrades 26 bzw. der Kurbel 16 bestimmt.A brake pad 30 is displaceably guided in the housing 10 transversely to the axis of rotation of the screw 22 and, as shown in FIG. 4, has an L-shaped cross section. A braking surface 32 is formed on the shorter leg 31, the contour of which is adapted to the braking surface 24 on the cylindrical section 23 of the worm 22. A compression spring 33 supported on a wall of the housing 10 presses this brake pad 30 with its braking surface from one side against the braking surface 24 on the worm 22. The longer leg of the brake pad 30 serves as a switching plunger 34 for displacing the brake block 30. This switching plunger protrudes the side opposite the braking surface 32 into the effective range of a switching curve 35, which is integrally formed as a circumferential collar on the gearwheel 26, that is to say is operatively connected to the crank. This switching curve 35 can best be seen in FIG. 6. On diametrically opposite sides, this switching curve each has a section 36 which is set back radially to such an extent that there is no longer any contact between the switching curve and the switching plunger 34 on the brake pad 30 in this section . These recessed sections lie in an angular range W, which determines the two parking positions of the gear 26 and the crank 16.

Aus den bisherigen Ausführungen kann also folgendes abgeleitet werden: In den Parklagen wird der zu einer insgesamt mit 37 bezeichneten Bremseinrichtung gehörende Bremsklotz 30 nicht von der Schaltkurve 35 beeinflußt. Damit wird die Bremsfläche 32 am Bremsklotz mit einer definierten Bremskraft, die im wesentlichen von der Kraft der Druckfeder 33 abhängt, gegen die Bremsfläche 24 an der Schnecke 22, also allgemein einem mit dem Elektromotor wirkverbundenen Element gedrückt. Wird nun der Elektromotor eingeschaltet und liegt dessen Verstellkraft oberhalb eines bestimmten Wertes, dreht sich das Zahnrad 26 und damit auch die Schaltkurve 35, sodaß nach einem kurzen Drehwinkel, also außerhalb der Parklage der Kurbelzapfen 15 an einem Anschlag 13, 14 anschlägt und zugleich über die Schaltkurve 35 der Schaltstößel 34 in Pfeilrichtung P verstellt wird. Die beiden Bremsflächen 24 und 32 berühren sich jetzt nicht mehr und das volle Drehmoment des Elektromotors wird zur Verstellung des Scheibers ausgenutzt. Sobald das Zahnrad 26 einen Drehwinkel von fast 180° erreicht hat, kann der Schaltstößel 34 wieder in den zurückgesetzten Abschnitt 36 der Schaltkurve 35 einfahren und die beiden Bremsflächen 24 und 32 liegen wieder aneinander an. Durch Zusammenwirken der Bremsflächen 24 und 32 an der Schnecke 22 bzw. dem Bremsklotz 30 ist also eine mechanische Bremseinrichtung 37 realisiert, die das Zahnrad 26 bzw. die Kurbel 16 nach jedem Stellvorgang in einem definierten Winkelbereich W stillsetzt. Außerhalb dieses Winkelbereichs ist diese Bremseinrichtung aber gelöst.The following can therefore be derived from the previous statements: In the parking positions, the brake pad 30 belonging to a braking device designated overall by 37 is not influenced by the switching curve 35. Thus, the braking surface 32 on the brake pad is pressed with a defined braking force, which essentially depends on the force of the compression spring 33, against the braking surface 24 on the worm 22, that is, generally an element operatively connected to the electric motor. If the electric motor is now switched on and its adjusting force is above a certain value, the gear 26 and thus also the switching curve 35 rotates, so that after a short angle of rotation, i.e. outside the park position, the crank pin 15 strikes a stop 13, 14 and at the same time via the Switching curve 35 of the switching plunger 34 is adjusted in the direction of arrow P. The two braking surfaces 24 and 32 no longer touch each other and the full torque of the electric motor is used to adjust the disc. As soon as the gear 26 has reached an angle of rotation of almost 180 ° , the switching plunger 34 can move back into the recessed section 36 of the switching curve 35 and the two braking surfaces 24 and 32 rest against each other again. By the interaction of the braking surfaces 24 and 32 on the worm 22 or the brake pad 30, a mechanical braking device 37 is thus realized, which stops the gearwheel 26 or the crank 16 in a defined angular range W after each setting operation. Outside this angular range, however, this braking device is released.

Wesentlich ist dabei, daß eine bestimmte Bremskraft definiert ist. Diese hängt von der Steifigkeit der Druckfeder 33 ab sowie von der Größe der Bremsflächen 24 und 32 sowie deren Oberflächenbeschaffenheit. Bei einer konkreten Ausführung hat man die Bremsflächen mit einer möglichst glatten Oberfläche versehen und außerdem zwischen die Bremsflächen einen Schmierstoff eingebracht. Mit diesen Maßnahmen kann der Verschleiß der Bremsflächen an der üblicherweise aus Kunststoff hergestellten Schnecke und dem ebenfalls aus Kunststoff bestehenden Bremsklotz und Betriebsgeräusche reduziert werden, wobei trotzdem eine ausreichende Bremskraft mit relativ geringer Federkraft realisierbar ist. Unter Berücksichtigung dieser Bedingungen wurde nun die Bremskraft so eingestellt, daß der Motor nur anlaufen kann, wenn seine Verstellkraft oberhalb eines Minimalwertes liegt, der auch unter ungünstigsten Bedingungen zur Verstellung des Schiebers bzw. beim vorgesehenen Anwendungsfall des Türschlosses ausreicht. Bei Unterspannung kann also die Bremskraft dieser mechanischen Bremseinrichtung nicht überwunden werden, sodaß die Kurbel auch nicht aus der Parklage herausläuft und eine manuelle Verstellung des Schiebers blockieren könnte. Bei einer solchen Auslegung der Bremseinrichtung erfüllt diese also zwei Funktionen. Sie sorgt dafür, daß die Kurbel jeweils exakt in den Parklagen stillgesetzt wird und verhindert also ein Nachlaufen. Andererseits wird durch die Bremseinrichtung zu Beginn eines jeden Verstellvorganges geprüft, ob die Verstellkraft des Elektromotors den vorgeschriebenen Werten entspricht und nur in diesem Fall kann überhaupt ein Verstellvorgang beginnen. Aufgrund dieser Doppelfunktion der gesteuerten mechanischen Bremseinrichtung wird die Betriebssicherheit der Stelleinrichtung wesentlich verbessert.It is essential that a certain braking force is defined. This depends on the rigidity of the compression spring 33 and on the size of the braking surfaces 24 and 32 and their surface properties. In the case of a specific embodiment, the braking surfaces have been given the smoothest possible surface and a lubricant has also been introduced between the braking surfaces. With these measures, the wear of the braking surfaces on the worm, which is usually made of plastic and the brake pad and operating noise, which is also made of plastic, can be reduced, although a sufficient braking force can be achieved with a relatively low spring force. Taking these conditions into account, the braking force has now been set so that the motor can only start if its adjusting force is above a minimum value, which is sufficient even under the most unfavorable conditions for adjusting the slide or in the intended application of the door lock. In the event of undervoltage, the braking force of this mechanical braking device cannot be overcome, so that the crank does not run out of the park position and could block manual adjustment of the slide. With such a design of the braking device, it therefore fulfills two functions. It ensures that the crank is locked in the parking position is set and thus prevents chasing. On the other hand, the braking device checks at the beginning of each adjustment process whether the adjustment force of the electric motor corresponds to the prescribed values and only in this case can an adjustment operation begin at all. Because of this double function of the controlled mechanical braking device, the operational safety of the actuating device is significantly improved.

Sollte beispielsweise aufgrund von unvermeidbaren Toleranzen im Schließmechanismus oder aufgrund anderer Störungen der Verstellweg des Schiebers blockiert sein, reichen die geschilderten Maßnahmen jedoch nicht aus. Bei manchen Anwendungen wird der Verstellweg des Schiebers bewußt größer ausgelegt als der gewünschte Verstellweg am Abtreibselement, also beispielsweise dem Schloß, damit auch bei ungünstigen Toleranzen im Bewegungsübertragungsgestänge ein einwandfreies Umschalten des Abtriebselementes sicher gewährleistet ist. In den Kraftübertragungsweg zwischen Motor und Schieber ist daher als weitere Sicherheit eine nur im Störungsfalle auslösende federbelastete Kupplung 40 eingebaut. Diese Kupplung wird dadurch realisiert, daß der Kurbelzapfen 15 verstellbar am Zahnrad 26 geführt ist. Dazu hat das Zahnrad 26 eine durchgehende Bohrung 41 parallel zur Drehachse D, in der dieser Kurbelzapfen 15 verschiebbar geführt ist. Diese Bohrung 41 ist auf der Seite der Stirnfläche 28 durch einen Abstützteller 42 abgeschlossen, an dem sich als Federelement eine Druckfeder 43 abstützt, die den Kurbelzapfen 15 in die Bewegungsbahn der Anschläge 13,14 drückt. Der Abstützteller 42 hat zwei senkrecht abstehende Schenkel 44 mit jeweils einer Rastnase 45, die in Führungsnuten 46 am Zahnrad 26 hineinragen und dort jeweils hinter einen Anschlag 47 greifen und somit den Abstützteller am Zahnrad in Achsrichtung festlegen. Eine solche Konstruktion entspricht allen Anforderungen hinsichtlich der Stabilität, ohne daß ein erhöhter Bauraum, insbesondere ein dickeres Zahnrad benötigt wird.If, for example, due to unavoidable tolerances in the locking mechanism or due to other malfunctions, the adjustment path of the slide is blocked, the measures described are not sufficient. In some applications, the adjustment path of the slide is deliberately designed to be larger than the desired adjustment path on the output element, that is to say, for example, the lock, so that even in the event of unfavorable tolerances in the movement transmission linkage, a reliable switching of the output element is reliably ensured. A spring-loaded clutch 40, which only triggers in the event of a fault, is therefore built into the power transmission path between the motor and the slide. This clutch is realized in that the crank pin 15 is adjustably guided on the gear 26. For this purpose, the gear 26 has a through bore 41 parallel to the axis of rotation D, in which this crank pin 15 is guided. This bore 41 is closed on the end face 28 side by a support plate 42, on which a compression spring 43 is supported as a spring element, which presses the crank pin 15 into the path of movement of the stops 13, 14. The support plate 42 has two vertically projecting legs 44, each with a locking lug 45, which protrude into guide grooves 46 on the gearwheel 26 and engage there behind a stop 47 and thus fix the support plate on the gearwheel in the axial direction. Such a construction meets all requirements with regard to stability, without requiring an increased installation space, in particular a thicker gear.

Durch diese Kupplung 40 wird sichergestellt, daß bei einer Schwergängigkeit oder Blockierung des Schiebers 11 das Zahnrad 26 dennoch in sein Parklage gebraucht wird. Dabei wird entgegen der Kraft der Druckfeder 43 der Kurbelzapfen 15 axial in Pfeilrichtung R verschoben und liegt dann nicht mehr in der Verstellbahn dieser Anschläge 13,14, sodaß eine leichtgängige manuelle Verstellung des Schiebers gewährleistet ist. Dazu trägt das Merkmal bei, daß der Verstellweg des Kurbelzapfens 15 durch Anschläge 49 so begrenzt ist, daß dessen Stirnfläche nicht am Schieber 11 anliegt, wie Fig. 3 zeigt. Sollte durch Spannungsausfall der Kurbelzapfen in der Bewegungsbahn eines Anschlages liegen, kann dieser Kurbelzapfen durch manuelle Verstellung des Schiebers zurückgestellt werden und damit ebenfalls der Schieber verstellt werden. Ist der Verstellweg des Schiebers größer als der Verstellweg des Abtriebselementes, wird die Kupplung bei jedem Stellvorgang ausgelöst. Sobald der Kurbelzapfen hinter dem Anschlag liegt, ist eine leichtgängige manuelle Verstellung des Schiebers wenigstens in einer Verstellrichtung möglich.This clutch 40 ensures that the gear 26 is still used in its parked position if the slide 11 is stiff or blocked. Here, counter to the force of the compression spring 43, the crank pin 15 is axially displaced in the direction of the arrow R and is then no longer in the adjustment path of these stops 13, 14, so that a smooth manual adjustment of the slide is ensured. The feature contributes to this that the adjustment path of the crank pin 15 is limited by stops 49 in such a way that its end face does not abut the slide 11, as shown in FIG. 3. If, due to a power failure, the crank pin is in the path of movement of a stop, this crank pin can be reset by manually adjusting the slide and thus the slide can also be adjusted. If the adjustment range of the slide is greater than the adjustment range of the output element, the clutch is triggered with every adjustment process. As soon as the crank pin is behind the stop, smooth, manual adjustment of the slide is possible at least in one adjustment direction.

Insbesondere aus den Fig. 7 und 8 sowie aus Fig. 3 erkennt man, daß der verstellbare Kurbelzapfen 15 und die Anschläge 13,14 mit schrägen Anlaufflächen 48 versehen sind, die ein ruckfreies Lösen der Kupplung 40 ermöglichen sollen. Aufgrund dieser Ausbildung ist damit zu rechnen, daß auf den Schieber 11 Kräfte quer zur Verstellrichtung einwirken. Diese Kräfte sollen über Rollen 49 abgefangen werden, die an einem das Gehäuse 10 verschließenden Deckel 18 entlangrollen. Durch beidseitig schräge Anlaufflächen am Kurbelzapfen wird im übrigen auch sichergestellt, daß bei einer falschen Polung des Elektromotors und damit einer gegenüber dem Normalbetrieb geänderten Drehrichtung der Motor nicht blockiert und beschädigt wird. Die kegelige Ausbildung des Kurbelzapfens gewährleistet eine konstante Kraftübertragung auf den Schieber unabhängig vom Drehwinkel.In particular from FIGS. 7 and 8 and from FIG. 3 it can be seen that the adjustable crank pin 15 and the stops 13, 14 are provided with inclined contact surfaces 48 which are intended to enable the clutch 40 to be released smoothly. Due to this design, it can be expected that forces 11 act transversely to the direction of adjustment on the slide. These forces are to be absorbed via rollers 49 which roll along a cover 18 which closes the housing 10. By oblique contact surfaces on the crank pin on both sides it is also ensured that the motor is not blocked and damaged if the polarity of the electric motor is incorrect and the direction of rotation is changed compared to normal operation. The tapered design of the crank pin ensures constant power transmission to the slide regardless of the angle of rotation.

Da diese Kupplung 40 zwischen dem Antriebsmotor 20 und dem Schieber 11 angeordnet ist, kann man den Schieber 11 und die Schubstange 12 kostengünstig einstückig aus Kunststoff herstellen, was aus Fig. 10 hervorgeht.Since this coupling 40 is arranged between the drive motor 20 and the slider 11, the slider 11 and the push rod 12 can be inexpensively manufactured in one piece from plastic, which is shown in FIG . 10 emerges.

Ublicherweise wird eine solche Stelleinrichtung über einen manuell verstellbaren Betriebschalter angesteuert, wobei dann nach jeweils einem Drehwinkel von 180° über einen Endlagenschalter der Elektromotor wieder selbsttätig abgeschaltet wird. Dazu hat man bisher auf dem Zahnrad 26 eine Schaltscheibe fixiert, auf der einzelne, jeweils separat am Gehäuse festgelegte kontaktfedern schleifen. Der Betriebsschalter ist bei einer als Steuergerät verwendeten Ausführung mit dem Schieber bzw. der Schubstange gekoppelt. Auch zur Bildung dieses Betriebschalters hat man einzelne Festkontakte im Gehäuse festgelegt. Durch die vielen einzelnen Kontakte war die Montage sehr zeitaufwendig.Such an actuating device is usually controlled via a manually adjustable operating switch, the electric motor then being automatically switched off again after each rotation angle of 180 ° via a limit switch. For this purpose, a switching disk has previously been fixed on the gearwheel 26, on which individual contact springs, each separately fixed to the housing, grind. In an embodiment used as a control unit, the operating switch is coupled to the slide or the push rod. Individual fixed contacts have also been defined in the housing to form this operating switch. Due to the many individual contacts, assembly was very time-consuming.

Aus den Fig. 6, 7 und 9 geht hervor, daß an dem Zahnrad 26 eine Kontaktbrücke 60 mit drei Kontaktpunkten 61, 62 und 63 federnd abgestützt ist. Diese Kontaktbrücke 60 wirkt mit Kontaktsegmenten 70 zusammen, die aus einer Platine ausgestanzt sind und zunächst noch zumindest teilweise über Verbindungsstege 71 zusammenhängen, die erst nach der Montage der Platine in dem Gehäuse 10 aufgetrennt werden. Eine solche mehrere Kontaktsegmente 70 und damit einstückig verbundene Zuleitungsstege 72 bzw. Kontaktflächen 73 bis 76 aufweisende Platine ist in Fig. 12 dargestellt, wobei aus dem Schnitt in Fig. 13 hervorgeht, daß einzelne Zuleitungsstege 72a einen Abschnitt in einer anderen Ebene aufweisen, womit ohne Berührungsgefahr Leitungskreuzungen realisiert werden. Die Verwendung derart aus einer Platine ausgestanzter Zuleitungen bzw. Kontaktsegmente ist z. B. bei Kraftfahrzeugleuchten bekannt, sodaß sich weitere Ausführungen hierzu erübrigen. Für den vorliegenden Fall wichtig ist, daß die Kontaktbrücke 60 federnd unmittelbar in das Zahnrad 26 integriert ist und somit dieses Zahnrad eine weitere Funktion übernimmt. Wichtig ist außerdem, daß ebenfalls aus dieser Platine unmittelbar die Kontaktflächen 73 bis 76 ausgestanzt werden, die mit einer weiteren Kontaktbrücke 77 zusammenwirken, die federnd am Schieber 11 oder dem innerhalb des Gehäuses liegenden Teil der Schubstange 12 abgestützt ist, wie Fig. 10 und 11 deutlich zeigen. Diese Kontaktflächen bilden damit zusammen mit der Kontaktbrücke den Betriebsschalter, der in Fig. 14 insgesamt mit 78 bezeichnet ist.6, 7 and 9 that a contact bridge 60 with three contact points 61, 62 and 63 is resiliently supported on the gear 26. This contact bridge 60 interacts with contact segments 70 which are punched out of a circuit board and are initially at least partially connected via connecting webs 71 which are only opened in the housing 10 after the circuit board has been installed. Such a circuit board having a plurality of contact segments 70 and supply webs 72 or contact surfaces 73 to 76 connected integrally therewith is shown in FIG. 12, it being apparent from the section in FIG. 13 that individual supply webs 72a have a section in another plane, with which without Danger of contact line crossings can be realized. The use of leads or contact segments punched out from a circuit board is, for. B. known in automotive lights, so that further explanations are unnecessary. For the present case, it is important that the contact bridge 60 is springy integrated directly into the gear 26 and thus this gear takes on a further function. It is also important that the contact surfaces 73 to 76 are also punched out directly from this board, which are connected to a further contact bridge 77 cooperate, which is resiliently supported on the slide 11 or the part of the push rod 12 lying within the housing, as clearly shown in FIGS. 10 and 11. Together with the contact bridge, these contact surfaces thus form the operating switch, which is designated 78 in FIG. 14 as a whole.

Die konkrete Schaltung nach Fig. 14 ist nicht Gegenstand der vorliegenden Erfindung. Es wird daher hier nur darauf hingewiesen, daß über einen in Fig. 14 mit 80 bezeichneten Schaltkontakt kurz nach dem Anlaufen des Motors 20 ein Selbsthaltekreis geschaltet wird und damit der Motor unabhängig von der Schaltstellung des Betriebsschalters in eine seiner Parklagen läuft. Der Schaltkontakt 81 gehört zum eigentlichen Endlagenschalter, der den Motorstromkreis in der Parklage unterbricht. Über diesen Schaltkontakt und einen weiteren Schaltkontakt 82 werden während eines Stellvorganges die mit A und E bezeichneten Ausgänge, die zu anderen Stelleinrichtungen führen, parallelgeschaltet, damit auch die Motoren dieser Stelleinrichtung sicher in ihre Parklage laufen. Damit die Übereinstimmung dieser Schaltung nach Fig. 14 mit der Ausbildung der einzelnen Kontaktsegmente in Fig. 12 überprüfbar ist, wird noch darauf hingewiesen, daß der Kontaktpunkt 62 dauernd auf einem Kontaktsegment 70a mit geringem Radius schleift. Der Kontaktpunkt 61 schleift auf den Kontaktsegmenten 70b bis 70e mit dem größten Radius. der Kontaktpunkt 63 schleift schließlich auf den Kontaktsegmenten 70f bzw. 70g.14 is not the subject of the present invention. It is therefore only pointed out here that a self-holding circuit is switched shortly after the motor 20 is started via a switch contact designated by 80 in FIG. 14, and the motor therefore runs into one of its parking positions regardless of the switch position of the operating switch. The switch contact 81 belongs to the actual limit switch, which interrupts the motor circuit in the park position. Via this switch contact and a further switch contact 82, the outputs labeled A and E, which lead to other actuating devices, are connected in parallel during an actuating process, so that the motors of this actuating device also run safely into their parking position. In order that the correspondence of this circuit according to FIG. 14 with the design of the individual contact segments in FIG. 12 can be checked, it should also be pointed out that the contact point 62 continuously grinds on a contact segment 70a with a small radius. The contact point 61 grinds on the contact segments 70b to 70e with the largest radius. the contact point 63 finally grinds on the contact segments 70f and 70g.

Durch Fig. 13 soll auch angedeutet werden, daß an einzelne Kontaktsegmente, Zuleitungsstege oder Kontaktflächen rechtwinklig abstehende Anschlußlaschen 85 angeformt sind, die zwei im Abstand voneinander angeordnete Arme 86,87 aufweisen, zwischen denen Anschlußdrähte von Stromzuleitungen oder Bauelementen lötfrei verspannt werden. Aus Fig. 12 ist erkennbar, daß mehrere dieser Anschlußlaschen 85 in räumlicher Zuordnung zueinander am Gehäuse festgelegt sind, an denen dann die in einem Kabel 88 zusammengefaßten Stromzuleitungen bzw. Steuersignalleitungen sowie die zum Elektromotor führenden Leitungen fixiert werden. Dabei dient die in Fig. 22 und 23 dargestellte Leiste 89 zur Sicherung und Zugentlastung der Leitungen.13 is also intended to indicate that connection tabs 85 protruding at right angles are formed on individual contact segments, supply webs or contact surfaces, which have two arms 86, 87 arranged at a distance from one another, between which connecting wires of power supply lines or components are brazed without soldering. From FIG. 12 it can be seen that several of these connecting lugs 85 are fixed in spatial association with one another on the housing, on which the current leads or control signal lines combined in a cable 88 and the leads leading to the electric motor are then fixed. The strip 89 shown in FIGS. 22 and 23 serves to secure and relieve the strain on the lines.

In Fig. 15 ist eine andere, nicht als Steuergerät ausgebildete Ausführung dargestellt. Durch Vergleich mit Fig. 2 erkennt man, daß der grundsätzliche Aufbau beibehalten wurde, jedoch ein integrierter Betriebsschalter entfällt. An paarweise angeordneten Anschlußlaschen 85 sind dei Anschlußdrähte von Dioden 90 fixiert.15 shows another embodiment, which is not designed as a control device. By comparing with Fig. 2 it can be seen that the basic structure has been retained, but an integrated operating switch is omitted. The connection wires of diodes 90 are fixed to connection lugs 85 arranged in pairs.

Aus Fig. 15 und insbesondere aus den zu dieser Ausführung gehörenden Fig. 17 und 18 geht hervor, da'6 am Schieber 11 einstückig wenigstens eine Federzunge 95 absteht, die in Richtung auf eine Gehäusewand federnd vorgespannt ist und sich an dieser gleitend abstützt. Uber diese Federzunge 95 soll die Führung des Schiebers verbessert werden, wobei die Federzunge 95 ein umvermeidliches Spiel ausgleicht. Diese Aufgabe wird dem Schieber zur anderen Ausführung von der federnd abgestützen Kontaktbrücke 77 übernommen. In den Fig. 19 und 20 sind auch zu dieser Ausführung die Leiterplatine mit den einzelnen Kontaktsegmenten dargestellt. Zu dieser Ausführung gehört das Schaltbild nach Fig. 20, aus dem hervorgeht, daß wiederum über einen Schaltkontakt 80 ein Selbsthaltekreis für den Elektromotor 20 geschaltet wird. Dieser Selbsthaltekreis wird über eine der beiden Dioden 90 geschaltet, wodurch eine Zuleitung zu dieser Stelleinrichtung eingespart werden kann.15 and in particular from FIGS. 17 and 18 belonging to this embodiment show that at least one spring tongue 95 protrudes in one piece from the slide 11, which spring tongue is spring-loaded in the direction of a housing wall and is supported on it in a sliding manner. The guidance of the slide is to be improved by means of this spring tongue 95, the spring tongue 95 compensating for unavoidable play. This task is carried out by the spring-supported contact bridge 77 for the slide in the other embodiment. 19 and 20 also show the circuit board with the individual contact segments for this embodiment. The circuit diagram according to FIG. 20 belongs to this embodiment, from which it can be seen that a latching circuit for the electric motor 20 is in turn switched via a switching contact 80. This self-holding circuit is switched via one of the two diodes 90, as a result of which a supply line to this actuating device can be saved.

Claims (21)

1. An adjusting device, especially for locking doors of motor vehicles, including a housing, a crank that can be driven by a driving motor round a rotary angle of 180 degree each in the same direction of rotation during each adjusting process, including a slide adjustable by this crank between two end positions as well as including a push rod coupled with the slide and serving as a driven element, whereby the crank is only coupled with the slide for a certain part of its rotary movement and otherwise, after being rotated around an angle of 180 degree each, is decoupled from the slide so that said slide can easily be adjusted between its end positions, wherein a mechanical brake device (37) only operating in the area of the parking positions is provided, which brake device stops crank (15) in a predetermined angle area (W) in the respective parking position after each adjusting process, whereby this brake device (37) comprises a brake block (30) adjustable via a switch cam (35) operatively connected with crank (16), which brake block, by exerting a predetermined brake force, is pressed against a brake area (24) of an element (22) connected with the driving motor (20) by a spring element (33), which brake block (30), however, is prevented from affecting this brake area (24) outside the parking positions by means of switch cam (35).
2. An adjusting device according to claim 1, wherein the brake force is defined in such a way that it can only be overcome by the driving motor (20), if its adjusting force exceeds a minimum value which is sufficient to adjust the driven element under the most unfavourable conditions.
3. An adjusting device according to claim 1 or 2, wherein the driving motor (20) drives crank (16) via a gear including a worm (22) connected with the shaft (21) of the driving motor (20) and protected against twisting as well as including at least one toothed wheel (25, 26), and wherein the brake block (30) directly acts upon the driven shaft or upon a brake area (32) of the worm (22).
4. An adjusting device according to at least one of the preceding claims, wherein brake block (30) preferably made of plastics is movably guided in the housing (10) in traverse direction to the direction of rotation of worm (22) also preferably made of plastics, wherein one side of this brake block (30) is pressed against brake area (32) of worm (22) by a pressure spring (33) preferably supported by the housing wall and wherein this brake block (30) comprises a switch tappet (34) extending the other side of worm (22) which tappet (34) projects into the orbit of switch cam (35).
5. An adjusting device according to claim 4, wherein brake block (30) comprises a brake area (32) adapted to the outer surface of worm (22) serving as a brake area (24), wherein both brake areas (24, 32) acting in combination with each other have a surface that is as smooth as possible and wherein there is lubricant between the brake areas.
6. An adjusting device according to at least one of the preceding claims, wherein crank (16) is formed of a toothed wheel (26) with a crank pin (15) excentrically extending a front face (27), which crank pin acts in combination with stops (13, 14) of slide (11) and wherein this toothed wheel (26) comprises a circumferential collar extending a front face (28) and serving as a switch cam (35) for switch tappet (34) of brake block (30).
7. An adjusting device especially according to at least one of the preceding claims, wherein a springloaded coupling (40) is installed between the driving motor (20) and slide (11), which coupling (40) permits an adjustment of push rod (12) between its end positions without automatic readjustment, even if crank (16) is blocked outside the parking position, whereby only for a short part of the adjusting path an increased adjusting force must be overcome for releasing this coupling (40).
8. An adjusting device according to claim 7, wherein crank (16) is formed of a toothed wheel (26) with a crank pin (15) excentrically extending a front face (27), which crank pin acts in combination with stops (13,14) of slide (11), and wherein crank pin (15) is adjustably guided on toothed wheel (26) and is tensioned in the direction of the path of motion of stops (13, 14) by a spring element (43).
9. An adjusting device according to claim 8, wherein two stops (13, 14) are located on slide (11) in such a way, wherein during an adjusting process one stop is moved out of the orbit of crank pin (15) by said crank pin, whereas the other stop is moved into the orbit of the crank pin, whereby distance (A) between the stops (13, 14) is smaller in the adjusting direction of the slide (11) than the radius of the crank, preferably is only little greater than the diameter of crank pin (15) and wherein distance (B) between the stops (13, 14) traversely seen to the adjusting direction, is also only little greater than the diameter of crank pin (15) and wherein crank pin (15) is then stopped by switching off and slowing down the driving motor (20), when it is in the middle between the adjusting paths of the two stops (13, 14).
10. An adjusting device according to claim 9, wherein crank pin (15) is guided in toothed wheel (26) in parallel to the axis of rotation (D) of said toothed wheel.
11. An adjusting device according to claim 10, wherein a guide bore (41) for the crank pin (15) penetrates the toothed wheel (26) and wherein said guide bore on the one side is finished off by a supporting plate (42) for a pressure spring (43) fixed to the toothed wheel, which pressure spring acts upon crank pin (15).
12. An adjusting device according to claim 11, wherein two sides (44) more or less perpendicularly extending supporting plate (42) are mounted onto said supporting plate, which sides (44) project into guide slots (46) of the toothed wheel and comprise a locking lug (45) each which acts upon a toothed wheel (26) behind a stop (47)
13. An adjusting device according to at least one of the claims 7 to 12, wherein the adjusting path of crank pin (15) is limited by stops in such a way that its front face is not lying on slide (11).
14. An adjusting device according to at least one of the claims 7 to 13, wherein crank pin (15) comprises slanting roll-on areas (48) and wherein it is preferably conically formed at its end.
15. An adjusting device according to at least one of the claims 7 to 14, wherein slide (11) and push rod (12) are integrally formed and preferably made of plastics.
16. An adjusting device according to at least one of the claims 7 to 14, wherein at least one guiding caster (49) is rotatably located on the side of slide (11) opposite the stops (13, 14), via which caster (40) the slide (11) is roIIingIy supponed by a housing wall.
17. An adjusting device according to at least one of the claims 7 to 14, wherein at least one spring tongue (95) integrally connected with slide (11) or push rod (12) is extending said slide or push rod (12), which spring tongue is springily tensioned in the direction of a housing wall and is slidingly supported by it.
18. An adjusting device especially according to at least one of the preceding claims, wherein crank (16) is formed of a toothed wheel (26) with a crank pin (15) excentrically extending a front face (27), which crank pin acts in combination with stops (13, 14) of slide (11), and wherein on a front face (28) of the toothed wheel (26) a bridging contact (60) acting in combination with contact segments (70) stationarily fixed to the housing (10) is springily supported, whereby these contact segments (70) are punched out of a blank and are at first at least partly connected via connecting webs (71) which are only separated after the installation of the blank into the housing.
19. An adjusting device according to claim 18, wherein separate contact segments are integrally connected with further contact areas (73, 74, 75, 76) which at in combination with a bridging contact (77) fixed to slide (11).
20. An adjusting device according to claim 18 or 19, wherein connecting clips (85) perpendicularly deflected are integrally connected with separate contact segments, contact areas or connecting webs, which connecting clips (85) comprise two arms (86, 87) each arranged at a certain distance from each other, between which arms conducting wires of components or of electric connections can be tightened.
21. An adjusting device according to claim 20, wherein several connecting clips (85) are closely arranged one after the other in the housing (10) and are formed as a cutting plug -and socket connector for connections leading to the electric driving motor (20) and for electric connections and control signal connections leading out of housing (10) and wherein a strip (89) is plugged onto these connecting clips (85) for the sake of security and for reducing the tension of the connections.
EP87111141A 1986-08-16 1987-08-01 Control device, especially for locking motor car doors Expired EP0256401B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863627893 DE3627893A1 (en) 1986-08-16 1986-08-16 ACTUATING DEVICE, IN PARTICULAR FOR DOOR LOCKING IN MOTOR VEHICLES
DE3627893 1987-08-16

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EP0256401A1 EP0256401A1 (en) 1988-02-24
EP0256401B1 true EP0256401B1 (en) 1989-07-12

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EP87111141A Expired EP0256401B1 (en) 1986-08-16 1987-08-01 Control device, especially for locking motor car doors

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JP (1) JPH0819800B2 (en)
BR (1) BR8707415A (en)
DE (1) DE3627893A1 (en)
ES (1) ES2011288B3 (en)
WO (1) WO1988001334A1 (en)

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Also Published As

Publication number Publication date
ES2011288B3 (en) 1990-01-01
DE3627893C2 (en) 1989-11-23
WO1988001334A1 (en) 1988-02-25
JPH01500915A (en) 1989-03-30
EP0256401A1 (en) 1988-02-24
DE3627893A1 (en) 1988-02-18
BR8707415A (en) 1988-11-01
JPH0819800B2 (en) 1996-02-28
US4876909A (en) 1989-10-31

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