EP0400209A2 - Electric actuator, especially for central door locking - Google Patents

Electric actuator, especially for central door locking Download PDF

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Publication number
EP0400209A2
EP0400209A2 EP89118676A EP89118676A EP0400209A2 EP 0400209 A2 EP0400209 A2 EP 0400209A2 EP 89118676 A EP89118676 A EP 89118676A EP 89118676 A EP89118676 A EP 89118676A EP 0400209 A2 EP0400209 A2 EP 0400209A2
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EP
European Patent Office
Prior art keywords
nut
lever
locking
spindle
blocking
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.)
Granted
Application number
EP89118676A
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German (de)
French (fr)
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EP0400209B1 (en
EP0400209A3 (en
Inventor
Gerhard Pfanzer
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.)
Mannesmann VDO AG
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Mannesmann VDO AG
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Publication date
Application filed by Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of EP0400209A2 publication Critical patent/EP0400209A2/en
Publication of EP0400209A3 publication Critical patent/EP0400209A3/en
Application granted granted Critical
Publication of EP0400209B1 publication Critical patent/EP0400209B1/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/25—Actuators mounted separately from the lock and controlling the lock functions through mechanical connections

Definitions

  • the invention relates to an electromotive actuating element, in particular for a central door lock, which, for actuating a locking lever and an anti-theft lever on a spindle driven by an electric motor and mounted in a housing, has a nut which is axially displaceable by rotation of the spindle.
  • Actuators of this type are provided in today's motor vehicles for motorized door lock locking and are therefore known.
  • the invention has for its object to provide an actuator of the type mentioned so that with a single motor and a total of only two electrical cables leading to the actuator locking and unlocking a lock and additionally an anti-theft and anti-theft device is possible.
  • the nut is movable with a cam against a cam of a blocking lever which is displaceably arranged parallel to the spindle and which can be displaced by the nut to fix the locking position of the mother by means of the cams into a position against a stop, in that the blocking lever is biased by a spring in the direction of a pivot position releasing the cams of the nut, that a spring-operated turning device is also provided for slightly turning back the spindle and that this turning device can be triggered as soon as the nut has reached the locking position coming from the unlocking position and that Electric motor is switched off.
  • This design ensures that the nut is blocked by the blocking lever when the locking position is reached. This leads to a blocking of the electric motor because the electronics assign a specific energization time to the individual actuating processes. If the electric motor is switched off, the reversing device can slightly reset the nut. As a result, it no longer lies against the blocking lever, so that it can then pivot into a position releasing the nut. The mother can go through energize the electric motor again in the anti-theft position.
  • the reversing device must allow the spindle to rotate freely and may only be tensioned shortly before reaching the locking position in order to be able to slightly turn back the spindle when the locking position is reached and after the electric motor has been switched off.
  • the easiest way to achieve this is if, according to an advantageous embodiment of the invention, the reversing device is arranged on the spindle.
  • the design of the reversing device can also be very different.
  • the reversing device is particularly simple if it has a disk which is fixedly arranged on the spindle and a blocking disk which is connected to it via a spiral spring and is rotatably mounted on the spindle, and if a locking lever which blocks the blocking disk is provided and which is immediately before by means of a driver connection the nut has come from the unlocked position to the locked position, can be moved into a blocking position.
  • the locking disc just before reaching the locking position can be done in a particularly simple manner in that the locking disc has a radial cam and the locking lever is pivotally mounted transversely to the main direction of extension of the spindle and for actuating the locking lever on a biasing the locking lever in the release position, transverse to Blocking lever against spring force movable pressure piece the driver connection is provided.
  • the driver connection is expediently formed by a ramp on the pressure piece, against which the locking lever rests with spring force.
  • a separate spring for the locking lever is unnecessary if, according to another embodiment of the invention, the pressure piece is biased towards the blocking lever by one leg of a leg spring and the other leg of the leg spring biases the locking lever against the ramp in the release position.
  • a pivoting of the locking lever before reaching the locking position can be easily prevented by providing a portion on the locking lever under which the nut comes when the locking lever is moved so that the locking lever pivots is excluded and that the return device is designed to reset the mother up to this section.
  • the blocking lever is prevented from pivoting by the nut shortly before it has reached the locking position. Only when the turning device has turned the nut back after reaching the locking position does it release the blocking lever so that it can then pivot away.
  • the actuating element is designed to be particularly simple in terms of construction if a locking lever is connected to the nut via a disengageable coupling for locking and unlocking the lock and, in addition, an anti-theft lever which can be actuated by the nut after passing the locking position is provided.
  • the anti-theft lever can also be actuated very simply if it is connected to a slide which is arranged displaceably in the housing and which has an extension projecting into the movement path of the nut.
  • the control element shown has in a cuboid-shaped, divided housing 1 parallel to the longest side surface a spindle 2 that fills almost the entire length of the interior stored electric motor 5 combs.
  • this electric motor 5 By means of this electric motor 5, the pinion 4 and the gear 3, the spindle 2 can be rotated in one or the other direction.
  • a nut 6 is non-rotatably, but axially displaceably, which shifts on the spindle 2 when it rotates.
  • a locking lever 8 which can be pivoted about a pivot point 7, projects into the housing 1 of the actuating element.
  • This locking lever 8 can engage in a longitudinal slot 9 of the nut 6 shown in FIG.
  • a disengageable coupling 10 engages with the end of the locking lever 8 when the nut 6 has moved correspondingly far to the left and then moves the locking lever 8 from the unlocking position shown in solid lines to a locking position shown in broken lines.
  • a blocking lever 11 which is axially displaceable and pivotable in the housing 1 in the area of the gear wheel 3 via a semicircular segment.
  • the nut 6 has a cam 12 which can be clearly seen in FIG. 3 and which can move against a cam 13 of the blocking lever 11 when the nut 6 is displaced on the spindle 2 and thereby moves the blocking lever 11 to the left as seen in the drawing.
  • the blocking lever 11 rests with its foremost end against a bevel 14 of a pressure piece 15, which is biased towards the blocking lever 11 by a leg 16 of a leg spring 17.
  • the other leg 18 of the leg spring 17 biases a locking lever 19 in such a way that it bears against the pressure piece 15.
  • the locking lever 19 is pivotally mounted in the housing 1 about an axis 20 extending transversely to the spindle 2.
  • a reversing device 21 which has a disk 22 connected to the spindle 2 in a rotationally fixed manner and an opposite, rotatable blocking disk 23.
  • the blocking disk 23 is connected to the disk 22 by a spiral spring 24 shown in FIG. FIG. 5 also shows that the blocking disk 23 has a radially projecting cam 25 against which the locking lever 19 can move into the locking position.
  • FIG. 2 shows that in addition to the locking lever 8, an anti-theft lever 26 leads into the housing 1 from below.
  • This anti-theft lever 26 is connected to a slider 27 arranged displaceably in the housing 1.
  • This slide 27 has a projection 28 shown in dashed lines in FIG. 1, against which the nut 6 can come if it moves correspondingly far to the left from the unlocking position shown in FIG. 1.
  • FIG. 4 When the electric motor 5 is energized, the nut 6 moves to the left in the drawing.
  • the coupling 10 couples with the locking lever 8 shown in FIGS. 1 and 2 and pivots it counterclockwise. Arrived during this shift the nut 6 with its bone 12 against the cam 13 of the blocking lever 11 shown in FIG. 3 and thereby displaces it to the left.
  • the blocking lever 11 has a portion 29 positioned in FIG. 4, which is gripped by the cam 12 of the nut 11. By moving the blocking lever 11 to the left, the pressure piece 15 is raised against the force of the leg spring 17 by the blocking lever 11 via the slope 14.
  • the pressure piece 15 arrives with a ramp 30 against a projecting area of the locking lever 19 and pivots it against the force of the leg spring 17 in a clockwise direction about the axis 20, so that the locking lever 19 passes over the cam 25 of the blocking disk 23 and therefore does not move can twist more together with the disk 22.
  • the spiral spring 24 shown in FIG. 5 is tensioned.
  • FIG. 6 shows the position of the nut 6 immediately before the electric motor 5 is switched off.
  • the blocking lever 11 has now raised the pressure piece 15 completely and the blocking disk 23 is still blocked by the blocking lever 19.
  • the locking lever 8 shown in Figure 1 now assumes the position shown in broken lines there, i.e. the door lock is locked.
  • the blocking lever 11 now lies with its left end against a housing-fixed stop 31 shown in FIG. 4, so that it prevents the nut 6 from moving further and the electric motor 5 is switched off.
  • the reversing device 21 can slightly turn back the spindle 2 while releasing the spiral spring 24. This causes the mother 6 to move back somewhat and no longer engages under the partial area 29 of the blocking lever 11. Therefore, the pressure piece 15 can press down the front end of the blocking lever 11, as a result of which its cam 13 shown in FIG. 3 reaches outside the engagement area of the cam 12 of the nut 6.
  • FIG. 7 shows the position of the individual parts in the idle state when the electric motor 5 is switched off.
  • the blocking lever 11 is now pivoted far down. Since the pressure piece 15 has moved downward, the locking lever 19 could pivot back into the position releasing the blocking disk 23, so that it can rotate again with the spindle 2. If the electric motor 5 is now energized again, the nut 6 can move freely from the blocking lever 11 to the left. It then takes the slide 27 via the extension 28 shown in FIG. 1, so that the anti-theft lever 26 shown in FIG. 2 comes into the anti-theft position.
  • Figure 8 shows the position of the individual parts in the anti-theft position. It differs from that according to FIG. 7 only in that the nut 6 assumes its left end position. The blocking disc 23 is still not blocked by the blocking lever 19 and the blocking lever 11 is in its pivoted down position.

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

Abstract

A spindle (2) of an actuator is equipped with a turn-back device (21). This rotates the spindle (2) backwards slightly as soon as a nut (6) arranged on it assumes a locking position. A blocking lever (11) can thereby pivot reliably into a position releasing the nut (6), so that the nut can subsequently be moved into a theft prevention position. <IMAGE>

Description

Die Erfindung betrifft ein elektromotorisches Stellele­ment, insbesondere für eine zentrale Türverriegelung, welche zur Betätigung eines Verriegelungshebels und eines Diebstahlsicherungshebels auf einer von einem Elek­tromotor antreibbaren, in einem Gehäuse gelagerten Spin­del unverdrehbar eine durch Drehung der Spindel axial verschiebliche Mutter hat. Stellelemente dieser Art sind in heutigen Kraftfahrzeugen zur motorischen Türschloßver­riegelung vorgesehen und deshalb bekannt.The invention relates to an electromotive actuating element, in particular for a central door lock, which, for actuating a locking lever and an anti-theft lever on a spindle driven by an electric motor and mounted in a housing, has a nut which is axially displaceable by rotation of the spindle. Actuators of this type are provided in today's motor vehicles for motorized door lock locking and are therefore known.

Bei solchen Stellelementen ist es erforderlich, daß der Elektromotor zunächst stillgesetzt wird, sobald die Mutter aus der Entriegelungsstellung kommend die Verrie­gelungsstellung erreicht hat. Sollen die Türschlösser zusätzlich diebstahlgesichert werden, dann muß sich an­schließend durch erneutes Bestromen des Elektromotors die Mutter über die Entriegelungsstellung hinaus in eine Diebstahlsicherungsstellung bewegen können. Das könnte man durch im Stellelement angeordnete Schaltkontakte oder durch einen separaten, der Diebstahlsicherung zu­ geordneten Stellmotor erreichen. Beides hätte jedoch den Nachteil, daß dann dem Stellelement zumindest drei Kabel zugeführt werden müßten.With such control elements, it is necessary that the electric motor is first stopped as soon as the nut has reached the locking position coming from the unlocking position. If the door locks are to be additionally secured against theft, then the mother must be able to move into the anti-theft position beyond the unlocking position by energizing the electric motor again. This could be done by switching contacts arranged in the control element or by a separate anti-theft device achieve orderly servomotor. However, both would have the disadvantage that at least three cables would then have to be fed to the actuating element.

Der Erfindung liegt die Aufgabe zugrunde, ein Stellele­ment der eingangs genannten Art so auszubilden, daß mit nur einem einzigen Motor und mit insgesamt nur zwei zum Stellelement führenden, elektrischen Leitungen ein Ver­riegeln und Entriegeln eines Schlosses und zusätzlich eine Diebstahlsicherung und Diebstahlentsicherung mög­lich ist.The invention has for its object to provide an actuator of the type mentioned so that with a single motor and a total of only two electrical cables leading to the actuator locking and unlocking a lock and additionally an anti-theft and anti-theft device is possible.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Mutter mit einem Nocken gegen einen Nocken eines parallel zur Spindel verschieblich angeordneten Blockier­hebels bewegbar ist, welcher von der Mutter zur Festle­gung der Verriegelungsstellung der Mutter mittels der Nocken in eine gegen einen Anschlag anliegende Stellung verschiebbar ist, in der der Blockierhebel von einer Fe­der in Richtung einer den Nocken der Mutter freigebenden Schwenkstellung vorgespannt ist, daß ferner eine feder­betätigte Rückdreheinrichtung zum geringfügigen Zurück­drehen der Spindel vorgesehen ist und daß diese Rückdreh­einrichtung auslösbar ist, sobald die Mutter aus der Entriegelungsstellung kommend die Verriegelungsstellung erreicht hat und der Elektromotor abgeschaltet ist.This object is achieved in that the nut is movable with a cam against a cam of a blocking lever which is displaceably arranged parallel to the spindle and which can be displaced by the nut to fix the locking position of the mother by means of the cams into a position against a stop, in that the blocking lever is biased by a spring in the direction of a pivot position releasing the cams of the nut, that a spring-operated turning device is also provided for slightly turning back the spindle and that this turning device can be triggered as soon as the nut has reached the locking position coming from the unlocking position and that Electric motor is switched off.

Durch diese Gestaltung wird erreicht, daß die Mutter bei Erreichen der Verriegelungsstellung vom Blockierhebel zu­nächst blockiert wird. Dadurch kommt es zu einem Blockie­ren des Elektromotors, weil die Elektronik den einzelnen Stellvorgängen eine bestimmte Bestromungszeit zuordnet. Ist der Elektromotor abgeschaltet, vermag die Rückdreh­einrichtung die Mutter geringfügig zurückzustellen. Da­durch liegt sie nicht mehr gegen den Blockierhebel an, so daß dieser dann in eine die Mutter freigebende Stel­lung zu schwenken vermag. Die Mutter kann deshalb durch erneutes Bestromen des Elektromotors in die Diebstahl­sicherungsstellung gefahren werden.This design ensures that the nut is blocked by the blocking lever when the locking position is reached. This leads to a blocking of the electric motor because the electronics assign a specific energization time to the individual actuating processes. If the electric motor is switched off, the reversing device can slightly reset the nut. As a result, it no longer lies against the blocking lever, so that it can then pivot into a position releasing the nut. The mother can go through energize the electric motor again in the anti-theft position.

Die Rückdreheinrichtung muß ein freies Drehen der Spin­del ermöglichen und darf erst kurz vor Erreichen der Verriegelungsstellung gespannt werden, um bei Erreichen der Verriegelungsstellung und nach dem Abschalten des Elektromotors die Spindel geringfügig zurückdrehen zu können. Das kann am einfachsten erreicht werden, wenn gemäß einer vorteilhaften Ausgestaltung der Erfindung die Rückdreheinrichtung auf der Spindel angeordnet ist.The reversing device must allow the spindle to rotate freely and may only be tensioned shortly before reaching the locking position in order to be able to slightly turn back the spindle when the locking position is reached and after the electric motor has been switched off. The easiest way to achieve this is if, according to an advantageous embodiment of the invention, the reversing device is arranged on the spindle.

Auch die Gestaltung der Rückdreheinrichtung kann sehr unterschiedlich sein. Besonders einfach ist die Rückdreh­einrichtung ausgebildet, wenn sie eine fest auf der Spin­del angeordnete Scheibe und eine mit dieser über eine Spiralfeder verbundene, drehbar auf der Spindel gela­gerte Blockierscheibe aufweist und wenn ferner ein die Blockierscheibe gehäusefest blockierender Sperrhebel vor­gesehen ist, welcher mittels einer Mitnehmerverbindung unmittelbar bevor die Mutter aus der Entriegelungsstel­lung kommend die Verriegelungsstellung erreicht hat, in eine die Blockierscheibe sperrende Stellung bewegbar ist.The design of the reversing device can also be very different. The reversing device is particularly simple if it has a disk which is fixedly arranged on the spindle and a blocking disk which is connected to it via a spiral spring and is rotatably mounted on the spindle, and if a locking lever which blocks the blocking disk is provided and which is immediately before by means of a driver connection the nut has come from the unlocked position to the locked position, can be moved into a blocking position.

Das Feststellen der Blockierscheibe kurz vor Erreichen der Verriegelungsstellung kann auf besonders einfache Weise dadurch erfolgen, daß die Blockierscheibe einen radialen Nocken aufweist und der Sperrhebel quer zur Haupterstreckungsrichtung der Spindel schwenkbar gela­gert ist und zum Betätigen des Sperrhebels an einem den Blockierhebel in Freigabestellung vorspannenden, quer zum Blockierhebel gegen Federkraft verschieblichen Druck­stück die Mitnehmerverbindung vorgesehen ist.The locking disc just before reaching the locking position can be done in a particularly simple manner in that the locking disc has a radial cam and the locking lever is pivotally mounted transversely to the main direction of extension of the spindle and for actuating the locking lever on a biasing the locking lever in the release position, transverse to Blocking lever against spring force movable pressure piece the driver connection is provided.

Die Mitnehmerverbindung ist zweckmäßigerweise durch eine Rampe am Druckstück gebildet, gegen die der Sperrhebel mit Federkraft anliegt.The driver connection is expediently formed by a ramp on the pressure piece, against which the locking lever rests with spring force.

Eine separate Feder für den Sperrhebel wird unnötig, wenn gemäß einer anderen Ausgestaltung der Erfindung das Druckstück durch einen Schenkel einer Schenkelfeder zum Blockierhebel hin vorgespannt ist und der andere Schen­kel der Schenkelfeder den Sperrhebel in Lösestellung gegen die Rampe vorspannt.A separate spring for the locking lever is unnecessary if, according to another embodiment of the invention, the pressure piece is biased towards the blocking lever by one leg of a leg spring and the other leg of the leg spring biases the locking lever against the ramp in the release position.

Ein Verschwenken des Blockierhebels vor dem Erreichen der Verriegelungsstellung, beispielsweise infolge zu ge­ringer Spannung am Elektromotor, kann auf einfache Weise dadurch ausgeschlossen werden, daß am Blockierhebel ein Teilbereich vorgesehen ist, unter den die Mutter beim Verschieben des Blockierhebels gelangt, so daß ein Ver­schwenken des Blockierhebels ausgeschlossen ist und daß die Rückdreheinrichtung zum Zurückstellen der Mutter bis vor diesen Teilbereich ausgebildet ist. Durch diese Ge­staltung wird der Blockierhebel von der Mutter am Ver­schwenken gehindert, kurz bevor sie die Verriegelungs­stellung erreicht hat. Erst wenn die Rückdreheinrichtung die Mutter nach Erreichen der Verriegelungsstellung zurückgedreht hat, gibt sie den Blockierhebel frei, so daß er dann wegschwenken kann.A pivoting of the locking lever before reaching the locking position, for example due to insufficient voltage on the electric motor, can be easily prevented by providing a portion on the locking lever under which the nut comes when the locking lever is moved so that the locking lever pivots is excluded and that the return device is designed to reset the mother up to this section. With this design, the blocking lever is prevented from pivoting by the nut shortly before it has reached the locking position. Only when the turning device has turned the nut back after reaching the locking position does it release the blocking lever so that it can then pivot away.

Konstruktiv besonders einfach ist das Stellelement ge­staltet, wenn zur Schloßverriegelung und Entriegelung ein Verriegelungshebel über eine ausrastbare Kupplung mit der Mutter verbunden ist und zusätzlich ein nach Überfahren der Verriegelungsstellung von der Mutter be­tätigbarer Diebstahlsicherungshebel vorgesehen ist.The actuating element is designed to be particularly simple in terms of construction if a locking lever is connected to the nut via a disengageable coupling for locking and unlocking the lock and, in addition, an anti-theft lever which can be actuated by the nut after passing the locking position is provided.

Die Betätigung des Diebstahlsicherungshebels kann eben­falls sehr einfach erfolgen, wenn er mit einem im Gehäu­se verschieblich angeordneten Schieber verbunden ist, der einen in die Bewegungsbahn der Mutter ragenden An­satz hat.The anti-theft lever can also be actuated very simply if it is connected to a slide which is arranged displaceably in the housing and which has an extension projecting into the movement path of the nut.

Die Erfindung läßt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips ist eine davon in der Zeichnung dargestellt und wird nachfolgend beschrieben. In ihr zeigen die

  • Fig. 1 einen Längsschnitt durch ein erfindungsge­mäßes Stellelement,
  • Fig. 2 einen Querschnitt durch das Stellelement ent­lang der Linie II - II in Figur 1,
  • Fig. 3 einen horizontalen Schnitt durch das Stell­element,
  • Fig. 4 einen der Figur 1 entsprechender Längs­schnitt, bei dem der Übersicht halber Teile weggelassen wurden, in einer zentralent­riegelten Stellung,
  • Fig. 5 einen Blick von links auf eine Rückdrehein­richtung des Stellelementes,
  • Fig. 6 einen Längsschnitt entsprechend Figur 4 in einer zentralverriegelten Stellung bei noch bestromtem Elektromotor,
  • Fig. 7 einen Längsschnitt entsprechend Figur 6 in einer zentralverriegelten Stellung bei nicht mehr bestromtem Elektromotor,
  • Fig. 8 einen Längsschnitt durch das Stellelement in einer diebstahlgesicherten Stellung.
The invention allows numerous embodiments. To further clarify its basic principle, one of these is shown in the drawing and is described below. They show in her
  • 1 shows a longitudinal section through an actuating element according to the invention,
  • 2 shows a cross section through the adjusting element along the line II-II in FIG. 1,
  • 3 shows a horizontal section through the adjusting element,
  • 4 shows a longitudinal section corresponding to FIG. 1, in which parts have been omitted for the sake of clarity, in a central unlocked position,
  • 5 is a view from the left of a reversing device of the control element,
  • 6 shows a longitudinal section corresponding to FIG. 4 in a centrally locked position with the electric motor still energized,
  • 7 shows a longitudinal section corresponding to FIG. 6 in a centrally locked position when the electric motor is no longer energized,
  • Fig. 8 shows a longitudinal section through the actuator in an anti-theft position.

Das dargestellte Stellelement hat in einem quaderförmi­gen, geteilten Gehäuse 1 parallel zur längsten Seiten­fläche eine nahezu die gesamte Länge des Innenraumes aus­füllende Spindel 2. Auf dem rechten Ende dieser Spindel 2 ist ein Zahnrad 3 drehfest angeordnet, in welches ein Ritzel 4 eines parallel zur Spindel 2 gelagerten Elektro­motors 5 kämmt. Mittels dieses Elektromotors 5, des Rit­zels 4 und des Zahnrades 3 kann die Spindel 2 im einen oder anderen Drehsinn verdreht werden.The control element shown has in a cuboid-shaped, divided housing 1 parallel to the longest side surface a spindle 2 that fills almost the entire length of the interior stored electric motor 5 combs. By means of this electric motor 5, the pinion 4 and the gear 3, the spindle 2 can be rotated in one or the other direction.

Auf der Spindel 2 ist eine Mutter 6 unverdrehbar, jedoch axial verschieblich angeordnet, welche sich bei Rotation der Spindel 2 auf ihr verschiebt. Von unten her ragt ein um einen Drehpunkt 7 schwenkbarer Verriegelungshebel 8 in das Gehäuse 1 des Stellelementes hinein. Dieser Ver­riegelungshebel 8 vermag in einen in Figur 2 gezeigten Längsschlitz 9 der Mutter 6 zu greifen. Eine ausrastbare Kupplung 10 verrastet mit dem Ende des Verriegelungshe­bels 8, wenn die Mutter 6 sich entsprechend weit nach links verschoben hat und bewegt den Verriegelungshebel 8 dann aus der in durchgezogenen Linien dargestellten Ent­riegelungsstellung in eine strichpunktiert gezeigte Ver­riegelungsstellung.On the spindle 2, a nut 6 is non-rotatably, but axially displaceably, which shifts on the spindle 2 when it rotates. From below, a locking lever 8, which can be pivoted about a pivot point 7, projects into the housing 1 of the actuating element. This locking lever 8 can engage in a longitudinal slot 9 of the nut 6 shown in FIG. A disengageable coupling 10 engages with the end of the locking lever 8 when the nut 6 has moved correspondingly far to the left and then moves the locking lever 8 from the unlocking position shown in solid lines to a locking position shown in broken lines.

Wichtig für die Erfindung ist ein Blockierhebel 11, der im Gehäuse 1 im Bereich des Zahnrades 3 über ein halb­kreisförmiges Segment axial verschiebbar und verschwenk­bar gelagert ist. Die Mutter 6 hat einen in Figur 3 deut­lich zu sehenden Nocken 12, welcher bei einer Verschie­bung der Mutter 6 auf der Spindel 2 gegen einen Nocken 13 des Blockierhebels 11 zu gelangen vermag und dadurch den Blockierhebel 11 in der Zeichnung gesehen nach links verschiebt.Important for the invention is a blocking lever 11 which is axially displaceable and pivotable in the housing 1 in the area of the gear wheel 3 via a semicircular segment. The nut 6 has a cam 12 which can be clearly seen in FIG. 3 and which can move against a cam 13 of the blocking lever 11 when the nut 6 is displaced on the spindle 2 and thereby moves the blocking lever 11 to the left as seen in the drawing.

Wie die Figur 1 zeigt, liegt der Blockierhebel 11 mit seinem vordersten Ende gegen eine Schräge 14 eines Druck­stückes 15 an, welches von einem Schenkel 16 einer Schen­kelfeder 17 zum Blockierhebel 11 hin vorgespannt ist. Der andere Schenkel 18 der Schenkelfeder 17 spannt einen Sperrhebel 19 derart vor, daß er gegen das Druckstück 15 anliegt. Der Sperrhebel 19 ist um eine quer zur Spindel 2 verlaufenden Achse 20 schwenkbar im Gehäuse 1 gela­gert.As FIG. 1 shows, the blocking lever 11 rests with its foremost end against a bevel 14 of a pressure piece 15, which is biased towards the blocking lever 11 by a leg 16 of a leg spring 17. The other leg 18 of the leg spring 17 biases a locking lever 19 in such a way that it bears against the pressure piece 15. The locking lever 19 is pivotally mounted in the housing 1 about an axis 20 extending transversely to the spindle 2.

Ein weiteres für die Erfindung wichtiges Bauteil stellt eine Rückdreheinrichtung 21 dar, welche eine drehfest mit der Spindel 2 verbundene Scheibe 22 und eine gegen­überliegende, verdrehbare Blockierscheibe 23 hat. Die Blockierscheibe 23 ist durch eine in Figur 5 gezeigte Spiralfeder 24 mit der Scheibe 22 verbunden. Die Figur 5 läßt weiterhin erkennen, daß die Blockierscheibe 23 einen radial vorspringenden Nocken 25 hat, gegen den der Sperrhebel 19 in Sperrstellung zu gelangen vermag.Another component that is important for the invention is a reversing device 21, which has a disk 22 connected to the spindle 2 in a rotationally fixed manner and an opposite, rotatable blocking disk 23. The blocking disk 23 is connected to the disk 22 by a spiral spring 24 shown in FIG. FIG. 5 also shows that the blocking disk 23 has a radially projecting cam 25 against which the locking lever 19 can move into the locking position.

Die Figur 2 zeigt, daß zusätzlich zum Verriegelungshebel 8 ein Diebstahlsicherungshebel 26 von unten her in das Gehäuse 1 führt. Dieser Diebstahlsicherungshebel 26 ist mit einem verschieblich im Gehäuse 1 angeordneten Schie­ber 27 verbunden. Dieser Schieber 27 hat einen in Figur 1 gestrichelt dargestellten Ansatz 28, gegen den die Mut­ter 6 zu gelangen vermag, wenn sie sich entsprechend weit nach links von der in Figur 1 gezeigten Entriege­lungsstellung weg bewegt.FIG. 2 shows that in addition to the locking lever 8, an anti-theft lever 26 leads into the housing 1 from below. This anti-theft lever 26 is connected to a slider 27 arranged displaceably in the housing 1. This slide 27 has a projection 28 shown in dashed lines in FIG. 1, against which the nut 6 can come if it moves correspondingly far to the left from the unlocking position shown in FIG. 1.

Zur Erläuterung der Funktionsweise des Stellelementes sei nunmehr zunächst auf die Figur 4 Bezug genommen. Wenn der Elektromotor 5 bestromt wird, dann bewegt sich die Mutter 6 in der Zeichnung gesehen nach links. Die Kupplung 10 kuppelt dabei mit dem in den Figuren 1 und 2 gezeigten Verriegelungshebel 8 und schwenkt ihn entgegen dem Uhrzeigersinn. Während dieser Verschiebung gelangt die Mutter 6 mit ihrem Nochen 12 gegen den in Figur 3 gezeigten Nocken 13 des Blockierhebels 11 und verschiebt ihn dadurch nach links. Der Blockierhebel 11 hat einen in Figur 4 positionierten Teilbereich 29, der dabei vom Nocken 12 der Mutter 11 untergriffen wird. Durch die Verschiebung des Blockierhebels 11 nach links wird vom Blockierhebel 11 über die Schräge 14 das Druckstück 15 gegen die Kraft der Schenkelfeder 17 angehoben. Dabei gelangt das Druckstück 15 mit einer Rampe 30 gegen einen vorspringenden Bereich des Sperrhebels 19 und schwenkt ihn gegen die Kraft der Schenkelfeder 17 im Uhrzeiger­sinn um die Achse 20, so daß der Sperrhebel 19 über den Nocken 25 der Blockierscheibe 23 gelangt und diese des­halb sich nicht mehr zusammen mit der Scheibe 22 ver­drehen kann. Da sich die Scheibe 22 jedoch weiter mit der Spindel 2 dreht, kommt es zu einem Spannen der in Figur 5 gezeigten Spiralfeder 24.To explain the operation of the control element, reference is now first made to FIG. 4. When the electric motor 5 is energized, the nut 6 moves to the left in the drawing. The coupling 10 couples with the locking lever 8 shown in FIGS. 1 and 2 and pivots it counterclockwise. Arrived during this shift the nut 6 with its bone 12 against the cam 13 of the blocking lever 11 shown in FIG. 3 and thereby displaces it to the left. The blocking lever 11 has a portion 29 positioned in FIG. 4, which is gripped by the cam 12 of the nut 11. By moving the blocking lever 11 to the left, the pressure piece 15 is raised against the force of the leg spring 17 by the blocking lever 11 via the slope 14. The pressure piece 15 arrives with a ramp 30 against a projecting area of the locking lever 19 and pivots it against the force of the leg spring 17 in a clockwise direction about the axis 20, so that the locking lever 19 passes over the cam 25 of the blocking disk 23 and therefore does not move can twist more together with the disk 22. However, since the disk 22 continues to rotate with the spindle 2, the spiral spring 24 shown in FIG. 5 is tensioned.

Die Figur 6 zeigt die Stellung der Mutter 6 unmittelbar vor dem Abschalten des Elektromotors 5. Der Blockierhe­bel 11 hat nunmehr das Druckstück 15 vollständig ange­hoben und die Blockierscheibe 23 ist weiterhin vom Sperr­hebel 19 blockiert. Der in Figur 1 gezeigte Verriege­lungshebel 8 nimmt nun die dort strichpunktiert darge­stellte Position ein, d.h. das Türschloß ist verriegelt. Der Blockierhebel 11 liegt mit seinem linken Ende nun­mehr gegen einen in Figur 4 gezeigten gehäusefesten An­schlag 31 an, so daß er die Mutter 6 an einer Weiterbe­wegung hindert und es zu einem Abschalten des Elektro­motors 5 kommt.FIG. 6 shows the position of the nut 6 immediately before the electric motor 5 is switched off. The blocking lever 11 has now raised the pressure piece 15 completely and the blocking disk 23 is still blocked by the blocking lever 19. The locking lever 8 shown in Figure 1 now assumes the position shown in broken lines there, i.e. the door lock is locked. The blocking lever 11 now lies with its left end against a housing-fixed stop 31 shown in FIG. 4, so that it prevents the nut 6 from moving further and the electric motor 5 is switched off.

Sobald der Elektromotor 5 stromlos ist, wirkt auf die Spindel 2 kein die Mutter 6 gegen den in Figur 3 gezeig­ten Nocken 13 des Blockierhebels 11 haltendes Drehmo­ment. Deshalb kann die Rückdreheinrichtung 21 unter Ent­spannung der Spiralfeder 24 die Spindel 2 geringfügig zurückdrehen. Dadurch wandert die Mutter 6 etwas zurück und untergreift nicht mehr den Teilbereich 29 des Blockierhebels 11. Deshalb kann das Druckstück 15 das vordere Ende des Blockierhebels 11 herunterdrücken, wo­durch sein in Figur 3 gezeigter Nocken 13 außerhalb des Eingriffbereiches des Nockens 12 der Mutter 6 gelangt.As soon as the electric motor 5 is de-energized, no torque acts on the spindle 2 to hold the nut 6 against the cam 13 of the blocking lever 11 shown in FIG. Therefore, the reversing device 21 can slightly turn back the spindle 2 while releasing the spiral spring 24. This causes the mother 6 to move back somewhat and no longer engages under the partial area 29 of the blocking lever 11. Therefore, the pressure piece 15 can press down the front end of the blocking lever 11, as a result of which its cam 13 shown in FIG. 3 reaches outside the engagement area of the cam 12 of the nut 6.

Die Figur 7 zeigt, welche Stellung die einzelnen Teile bei stromlos geschaltetem Elektromotor 5 im Ruhezustand einnehmen. Der Blockierhebel 11 ist nun weit herunter­geschwenkt. Da das Druckstück 15 sich nach unten bewegt hat, konnte der Sperrhebel 19 zurück in die die Blockier­scheibe 23 freigebende Stellung schwenken, so daß diese sich wieder mit der Spindel 2 drehen kann. Wird nun der Elektromotor 5 erneut bestromt, so kann die Mutter 6 vom Blockierhebel 11 unbehindert nach links wandern. Sie nimmt dann über den in Figur 1 gezeigten Ansatz 28 den Schieber 27 mit, so daß der in Figur 2 gezeigte Dieb­stahlsicherungshebel 26 in Diebstahlsicherungsstellung gelangt.FIG. 7 shows the position of the individual parts in the idle state when the electric motor 5 is switched off. The blocking lever 11 is now pivoted far down. Since the pressure piece 15 has moved downward, the locking lever 19 could pivot back into the position releasing the blocking disk 23, so that it can rotate again with the spindle 2. If the electric motor 5 is now energized again, the nut 6 can move freely from the blocking lever 11 to the left. It then takes the slide 27 via the extension 28 shown in FIG. 1, so that the anti-theft lever 26 shown in FIG. 2 comes into the anti-theft position.

Die Figur 8 zeigt die Stellung der einzelnen Teile in Diebstahlsicherungsstellung. Sie unterscheidet sich von der nach Figur 7 lediglich dadurch, daß die Mutter 6 ihre linke Endstellung einnimmt. Die Blockierscheibe 23 wird weiterhin nicht vom Sperrhebel 19 gesperrt und der Blockierhebel 11 befindet sich in seiner herunterge­schwenkten Stellung.Figure 8 shows the position of the individual parts in the anti-theft position. It differs from that according to FIG. 7 only in that the nut 6 assumes its left end position. The blocking disc 23 is still not blocked by the blocking lever 19 and the blocking lever 11 is in its pivoted down position.

Läuft die Mutter 6 zurück bis in die in den Figuren 1 und 4 gezeigte Stellung, dann schwenkt der Blockierhebel 11 ebenfalls zurück in seine zur Spindel 2 parallele Stellung, so daß bei einem erneuten Verriegeln und Dieb­stahlsichern der erläuterte Bewegungsablauf erneut er­folgen kann.If the nut 6 runs back to the position shown in FIGS. 1 and 4, then the blocking lever 11 also pivots back into its position parallel to the spindle 2, so that the movement sequence explained can take place again when it is locked and secured against theft.

Claims (9)

1. Elektromotorisches Stellelement, insbesondere für eine zentrale Türverriegelung, welche zur Betätigung eines Verriegelungshebels und eines Diebstahlsicherungs­hebels auf einer von einem Elektromotor antreibbaren, in einem Gehäuse gelagerten Spindel unverdrehbar eine durch Drehung der Spindel axial verschiebliche Mutter hat, dadurch gekennzeichnet, daß die Mutter (6) mit einem Nocken (12) gegen einen Nocken (13) eines parallel zur Spindel (2) verschieblich angeordneten Blockierhebels (11) bewegbar ist, welcher von der Mutter (6) zur Festlegung der Verriegelungsstellung der Mutter (6) mittels der Nocken (12, 13) in eine gegen einen Anschlag (31) anliegende Stellung verschiebbar ist, in der der Blockierhebel (11) von einer Feder (Schenkelfeder 17) in Richtung einer den Nocken (12) der Mutter (6) freige­bende Schwenkstellung vorgespannt ist, daß ferner eine federbetätigte Rückdreheinrichtung (21) zum geringfü­gigen Zurückdrehen der Spindel (2) vorgesehen ist und daß diese Rückdreheinrichtung (21) auslösbar ist, sobald die Mutter (6) aus der Entriegelungsstellung kommend die Verriegelungsstellung erreicht hat und der Elektromotor (5) abgeschaltet ist.1.Electro-motoric control element, in particular for a central door lock, which for actuating a locking lever and an anti-theft lever on a spindle driven by an electric motor and mounted in a housing has a nut which is axially displaceable by rotation of the spindle, characterized in that the nut (6 ) can be moved with a cam (12) against a cam (13) of a blocking lever (11) which is displaceable parallel to the spindle (2) and which is used by the nut (6) to fix the locking position of the nut (6) by means of the cam (12 , 13) can be displaced into a position bearing against a stop (31), in which the blocking lever (11) is biased by a spring (leg spring 17) in the direction of a pivoting position releasing the cams (12) of the nut (6), that a spring-operated return device (21) for slightly turning back the spindle (2) is provided and that this back Rotating device (21) can be triggered as soon as the nut (6) has reached the locking position from the unlocking position and the electric motor (5) has been switched off. 2. Elektromotorisches Stellelement nach Anspruch 1, da­durch gekennzeichnet, daß die Rückdreheinrichtung (21) auf der Spindel (2) angeordnet ist.2. Electromotive actuator according to claim 1, characterized in that the turning device (21) is arranged on the spindle (2). 3. Elektromotorisches Stellelement nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß die Rückdreheinrich­tung (21) eine fest auf der Spindel (2) angeordnete Scheibe (22) und eine mit dieser über eine Spiralfeder (24) verbundene, drehbar auf der Spindel (2) gelagerte Blockierscheibe (23) aufweist und daß ferner ein die Blockierscheibe (23) gehäusefest blockierender Sperr­hebel (19) vorgesehen ist, welcher mittels einer Mit­nehmerverbindung unmittelbar bevor die Mutter (6) aus der Entriegelungsstellung kommend die Verriegelungsstel­lung erreicht hat in eine die Blockierscheibe (23) sper­rende Stellung bewegbar ist.3. Electromotive actuator according to claims 1 or 2, characterized in that the reverse rotation device (21) a fixed on the spindle (2) arranged disc (22) and with this via a spiral spring (24) connected to the spindle (rotatable) 2) has a locking disc (23) and that there is also a locking lever (19) which blocks the locking disc (23) and which is fixed to the housing and which, by means of a driver connection, has reached the locking position immediately before the nut (6) comes out of the unlocking position into a locking disc ( 23) blocking position is movable. 4. Elektromotorisches Stellelement nach Anspruch 3, da­durch gekennzeichnet, daß die Blockierscheibe (23) einen radialen Nocken (25) aufweist und der Sperrhebel (19) quer zur Haupterstreckungsrichtung der Spindel (2) schwenkbar gelagert ist und zum Betätigen des Sperrhe­bels (19) an einem den Blockierhebel (11) in Freigabe­stellung vorspannenden, quer zum Blockierhebel (11) gegen Federkraft verschieblichen Druckstück (15) die Mitnehmerverbindung vorgesehen ist.4. Electromotive actuator according to claim 3, characterized in that the blocking disc (23) has a radial cam (25) and the locking lever (19) is pivotally mounted transversely to the main direction of extension of the spindle (2) and for actuating the locking lever (19) the driver connection is provided for a pressure piece (15) which prestresses the blocking lever (11) in the release position and can be displaced transversely to the blocking lever (11) against spring force. 5. Elektromotorisches Stellelement nach Anspruch 4, da­durch gekennzeichnet, daß die Mitnehmerverbindung durch eine Rampe (30) am Druckstück (15) gebildet ist, gegen die der Sperrhebel (19) mit Federkraft anliegt.5. Electromotive actuator according to claim 4, characterized in that the driver connection is formed by a ramp (30) on the pressure piece (15) against which the locking lever (19) rests with spring force. 6. Elektromotorisches Stellelement nach zumindest einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Druckstück (15) durch einen Schenkel (16) einer Schenkelfeder (17) zum Blockierhebel (11) hin vorge­spannt ist und der andere Schenkel (18) der Schenkelfe­der (17) den Sperrhebel (19) in Lösestellung vorspannt.6. Electromotive actuator according to at least one of the preceding claims, characterized in that the pressure piece (15) is biased by a leg (16) of a leg spring (17) to the blocking lever (11) and the other leg (18) of the leg spring (17th ) preloads the locking lever (19) in the release position. 7. Elektromotorisches Stellelement nach zumindest einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß am Blockierhebel (11) ein Teilbereich (29) vorgesehen ist, unter den die Mutter (6) beim Verschwenken des Blockierhebels (11) gelangt, so daß ein Verschwenken des Blockierhebels (11) ausgeschlossen ist und daß die Rück­dreheinrichtung (21) zum Zurückstellen der Mutter (6) bis vor diesen Teilbereich (29) ausgebildet ist.7. Electromotive actuating element according to at least one of the preceding claims, characterized in that a partial area (29) is provided on the blocking lever (11), under which the nut (6) comes when pivoting the blocking lever (11), so that pivoting of the blocking lever (11) is excluded and that the backward rotation device (21) is designed to reset the nut (6) up to this partial area (29). 8. Elektromotorisches Stellelement nach zumindest einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß zur Schloßverriegelung und Entriegelung ein Verriege­lungshebel (8) über eine ausrastbare Kupplung (10) mit der Mutter (6) verbunden ist und zusätzlich ein nach Überfahren der Verriegelungsstellung von der Mutter (6) betätigbarer Diebstahlsicherungshebel (26) vorgesehen ist.8. Electromotive actuator according to at least one of the preceding claims, characterized in that for locking and unlocking a locking lever (8) via a disengageable coupling (10) is connected to the nut (6) and additionally a after driving over the locking position of the nut ( 6) actuatable anti-theft lever (26) is provided. 9. Elektromotorisches Stellelement nach zumindest einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Diebstahlsicherungshebel (26) mit einem im Gehäuse (1) verschieblich angeordneten Schieber (27) verbunden ist, der einen in die Bewegungsbahn der Mutter (6) ragen­den Ansatz (28) hat.9. Electromotive actuating element according to at least one of the preceding claims, characterized in that the anti-theft lever (26) is connected to a slide (27) which is arranged displaceably in the housing (1) and which projects into the movement path of the nut (6) projection (28 ) Has.
EP89118676A 1989-05-03 1989-10-07 Electric actuator, especially for central door locking Expired - Lifetime EP0400209B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3914616 1989-05-03
DE3914616A DE3914616A1 (en) 1989-05-03 1989-05-03 ELECTRIC MOTOR CONTROL UNIT, IN PARTICULAR FOR A CENTRAL DOOR LOCK

Publications (3)

Publication Number Publication Date
EP0400209A2 true EP0400209A2 (en) 1990-12-05
EP0400209A3 EP0400209A3 (en) 1991-07-03
EP0400209B1 EP0400209B1 (en) 1993-06-16

Family

ID=6380011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89118676A Expired - Lifetime EP0400209B1 (en) 1989-05-03 1989-10-07 Electric actuator, especially for central door locking

Country Status (3)

Country Link
EP (1) EP0400209B1 (en)
DE (2) DE3914616A1 (en)
ES (1) ES2041931T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993025784A1 (en) * 1992-06-12 1993-12-23 Itt Automotive Europe Gmbh Actuator
DE10006892A1 (en) * 2000-02-16 2001-08-23 Delphi Tech Inc Door lock has trigger lever moved by actuator to move pawl so as to unlock catch, and electric drive as actuator coupled to trigger lever by gearbox unit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281671A2 (en) * 1987-03-07 1988-09-14 VDO Adolf Schindling AG Device for actuating a facility with two end positions of a motor vehicle door lock by a lever element
DE3803365A1 (en) * 1988-02-05 1989-08-17 Vdo Schindling Apparatus for the actuation of a locking device and of an anti-theft device cooperating with the latter on a motor-vehicle lock

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281671A2 (en) * 1987-03-07 1988-09-14 VDO Adolf Schindling AG Device for actuating a facility with two end positions of a motor vehicle door lock by a lever element
DE3803365A1 (en) * 1988-02-05 1989-08-17 Vdo Schindling Apparatus for the actuation of a locking device and of an anti-theft device cooperating with the latter on a motor-vehicle lock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993025784A1 (en) * 1992-06-12 1993-12-23 Itt Automotive Europe Gmbh Actuator
DE10006892A1 (en) * 2000-02-16 2001-08-23 Delphi Tech Inc Door lock has trigger lever moved by actuator to move pawl so as to unlock catch, and electric drive as actuator coupled to trigger lever by gearbox unit

Also Published As

Publication number Publication date
ES2041931T3 (en) 1993-12-01
EP0400209B1 (en) 1993-06-16
DE58904743D1 (en) 1993-07-22
DE3914616A1 (en) 1990-11-08
EP0400209A3 (en) 1991-07-03

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