EP0325171B1 - Lock with an electromagnetic clutch and a current-retaining arrangement - Google Patents

Lock with an electromagnetic clutch and a current-retaining arrangement Download PDF

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Publication number
EP0325171B1
EP0325171B1 EP89100543A EP89100543A EP0325171B1 EP 0325171 B1 EP0325171 B1 EP 0325171B1 EP 89100543 A EP89100543 A EP 89100543A EP 89100543 A EP89100543 A EP 89100543A EP 0325171 B1 EP0325171 B1 EP 0325171B1
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EP
European Patent Office
Prior art keywords
current
lock
driving
coupling device
swivelling
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EP89100543A
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German (de)
French (fr)
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EP0325171A1 (en
Inventor
Klaus Dr. Meister
Pierre Meyers
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Individual
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Individual
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Priority to AT89100543T priority Critical patent/ATE78547T1/en
Publication of EP0325171A1 publication Critical patent/EP0325171A1/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0676—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle
    • E05B47/068—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle axially, i.e. with an axially disengaging coupling element
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E05B47/0006—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a non-movable core; with permanent magnet

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • the invention is based on such an arrangement and further develops it in an advantageous manner.
  • Such a closure device has become known from the German patent specification DE 3338604 C2 and the European patent application 0 140 028 based thereon.
  • an electromagnetic coupling device is effectively controlled, via which a rotary element on the outside of the door is connected to an element performing the lock actuation on the inside of the door.
  • the electromagnetic coupling device includes a swivel magnet, with the aid of which a mechanical coupling of a drive axis to an output axis is produced via a driver after reaching a specific swivel position.
  • the closure device has an additional holding magnet with a holding plate, which holds the swivel magnet for the duration of the current flow in this swiveled-out position, so that the swivel magnet, which operates with a higher current requirement and also with slippage with wear, can be switched off from the current flow.
  • This patented arrangement is ideal for the operation of multi-turn locks, which require up to 2 full revolutions of the output axis to lock or unlock.
  • the described device is unnecessarily complex and voluminous.
  • the invention has for its object to provide a less complex and compact coupling device.
  • the object is achieved by the measures characterized in claim 1.
  • the coupling device is shorter and cheaper to manufacture, whereby the operation with regard to freedom from wear is completely sufficient for the planned application with quarter and half-turn locks.
  • the retractable design of the pins 24 described in claim 4 ensures that a force-free and non-destructive engagement of the driver 22 between the pins 24 of the drive element 5 is made possible in any position of the output axis 6 relative to the drive element 5.
  • the measures characterized in claim 5 achieve an embodiment of the coupling device with two offset axes, which enables an opening-free external protection of the security-critical lock areas.
  • the measures characterized in claim 6 introduce a further gear wheel into the closure device, which allows the drive and driven axes to be arranged at a greater distance from one another and which also enables a reversal of direction between the two axes.
  • the measures characterized in claim 7 result in an arrangement which reliably protects against violent attempts at opening coming from the outside, since all security-critical areas of the lock are covered by a reinforced plate without opening.
  • Fig. 1a the coupling device is shown in a sectional side view.
  • the drive axle 1, which can be driven from the outside of the door, is firmly connected to a gearwheel 2.
  • This in turn is in constant engagement with a gear 5, which is freely rotatable about the output axis 6.
  • a disc 7 is rotatably connected, which consists of soft magnetic material and the represents part of an electromagnetic coupling device.
  • the second part of the electromagnetic coupling device is formed by the swivel magnet 9, which is preferably designed as a U-magnet and carries a coil 10 for generating a magnetic flux.
  • the coil 10 When the coil 10 is energized, the magnetic flux flows back from one leg of the magnet through the disk 7 to the other leg.
  • the disc 7 is thereby firmly attracted to the swivel magnet 9.
  • the contacting surfaces of the swivel magnet 9 and the disk 7 are ground in such a way that the air gap between the two parts is very small. This results in a large magnetic flux even with very low electrical excitation and thus a strongly attractive force between the disk 7 and the swivel magnet 9.
  • the disk 7 With the rotation of the axis 1, the disk 7 is rotated at the same time, so that when the swivel magnet 9 is excited, the swivel body 8 also rotates by a predetermined angle. We call the current flow required for this swinging-out process entrainment current.
  • the swivel body 8 is fixedly connected to the swivel magnet 9.
  • a swivel contact 3 is attached to the swivel body 8.
  • the swivel contact 3 touches the electrical contacts 14 or 15, as a result of which the current is switched from the higher driving current to the substantially lower holding current. Further details are shown in FIG. 3.
  • the holding current can be dimensioned so that the contact between the pivoting contact 3 and the contacts 14 or 15 is maintained as long as the current supply lasts.
  • the pivoted-out swivel body 8 is thus held in its swiveled-out position.
  • the swiveling body 8 is returned to its starting position by return springs 16, 17.
  • the swivel magnet 9 is fixed to the swivel body 8.
  • the swivel body 8 is rotatably mounted about the output axis 6, just like a running plate 20. With the rotation of the swiveling body 8, the running plate 20 is rotated by the latter.
  • 1c shows a sectional partial view of the swivel body 8, the running plate 20 and the housing 18.
  • Recesses 19 are incorporated into the housing 18, into which webs 21 protrude.
  • the webs 21 are firmly connected to the tread plate 20.
  • the run-up bevels resulting from the recesses 19 result in the running plate 20 being displaced in the axial direction when the running plate 20 rotates.
  • a driver 22, which is mounted in a milled recess in the output shaft 6, is pushed upwards against a spring 23 until it fully engages in pins 24 which are connected to the drive element 5. This creates a mechanical coupling between the drive axle 1 and the output axle 6, via which large forces can be transmitted.
  • Fig. 2 shows a detailed view of the drive element 5 with retractable pins 24 in a plan view and in a sectional side view.
  • the driver 22 touches the pins 24.
  • the pins 24 are designed such that they can be sunk into the drive element 5 when the driver 22 is placed on it.
  • the driver 22 which is initially still stationary, engages in the gap between the pins 24.
  • the springs 25 bring the countersunk pins 24 back into the normal position, so that when the drive element 5 continues to rotate, the driver 22 is also rotated with the aid of the pins 24, as a result of which the output shaft 6 is also rotated.
  • a coupling of the output axis 6 to the drive axis 1 is then provided as long as the current flow continues.
  • Fig. 3 the simplest type of circuit for switching between driving current and holding current is shown in more detail.
  • the switch 28 is formed by electronics which, after the correct code input, connects a voltage source 29 to the arrangement. If voltage U is switched on to the arrangement and the arrangement is in its rest position, the contacts 14, 15 are open with respect to the swivel contact 3. In this state, transistor TR1 is open, i.e. the full driving current flows through the coil 10 of the swivel magnet 9.
  • the swivel magnet 9 with the swivel body 8 is then swung out through the disk 7 until the swivel contact 3 touches one of the contacts 14 or 15.
  • the transistor TR1 is thus closed and only a small holding current flows through the coil 10 via the resistor R2. This holding current can be adjusted by correctly dimensioning R2 and the resistance of the coil 10 so that the contact remains closed as long as the current supply lasts.
  • FIG. 4 the overall structure of a locking device with lock 44 and a coupling device 36 with offset axes is shown.
  • the outer protective and support plate 35 is screwed against the inside of the door.
  • the staggered arrangement of drive axis 1 and output axis 6 of the coupling device 36 makes it possible to protect the entire safety-critical area of the lock 44 by means of an armor plate 45 that does not open.
  • the drive axle 1 is extended towards the outside of the door with the aid of an intermediate axle 39.
  • the coupling device can be actuated with the aid of an outer rotary element 38 when the swivel magnet 9 is energized, which in turn is connected via the output axis 6 to the lock 44 and thus to the locking elements of the lock.
  • drive shaft 1 and thus also outer rotating element 38 can be freely rotated.
  • the output shaft 6 is accessible from the inside of the coupling device 36 on the inside of the door and thus permits the direct mechanical drive of the lock 44 by means of an inner actuating element 40 from the inside of the door.

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  • Lock And Its Accessories (AREA)

Abstract

A lock with a driver (22) and a holder-current arrangement is provided. The lock is operated, after the entry of the correct code, by means of a coupling device which is activated by an electrical signal. When current flows through it, the coupling device connects a rotary element on the outside of the door (1) to an element executing the lock actuation and located on the inside of the door (6). Electronic switching to and fro between a higher driving current and a lower holding current takes place. Furthermore, driving pins are designed so as to be retractable, thereby making it possible, in any operating position, to ensure a force-free and non-destructive engagement of a driver between these pins. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung nach dem Oberbegriff des Anspruchs 1. Die Erfindung geht von einer derartigen Anordnung aus und bildet diese in vorteilhafter Weise weiter.The invention relates to a device according to the preamble of claim 1. The invention is based on such an arrangement and further develops it in an advantageous manner.

Mit der deutschen Patentschrift DE 3338604 C2 und der darauf basierenden europäischen Patentanmeldung 0 140 028 ist eine solche Verschlußeinrichtung bekannt geworden. Bei dieser wird nach richtiger Codeeingabe mittels eines elektrischen Signals eine elektromagnetische Kupplungseinrichtung wirksamgesteuert, über die ein Drehelement auf der Türaußenseite mit einem die Schloßbetätigung durchführenden Element auf der Türinnenseite verbunden wird. Die elektromagnetische Kupplungseinrichtung umfaßt u.a. einen Schwenkmagneten, mit dessen Hilfe nach Erreichen einer bestimmten Ausschwenkposition über einen Mitnehmer eine mechanische Ankopplung einer Antriebs- an eine Abtriebsachse hergestellt wird. Darüberhinaus verfügt die Verschlußeinrichtung über einen zusätzlichen Haltemagneten mit Halteblech, der den Schwenkmagneten für die Dauer des Stromflusses in dieser Ausschwenkposition festhält, so daß dann der mit höherem Strombedarf und außerdem mit verschleißbehaftetem Schlupf arbeitende Schwenkmagnet vom Stromfluß abgeschaltet werden kann.Such a closure device has become known from the German patent specification DE 3338604 C2 and the European patent application 0 140 028 based thereon. In this case, after the correct code entry by means of an electrical signal, an electromagnetic coupling device is effectively controlled, via which a rotary element on the outside of the door is connected to an element performing the lock actuation on the inside of the door. The electromagnetic coupling device includes a swivel magnet, with the aid of which a mechanical coupling of a drive axis to an output axis is produced via a driver after reaching a specific swivel position. In addition, the closure device has an additional holding magnet with a holding plate, which holds the swivel magnet for the duration of the current flow in this swiveled-out position, so that the swivel magnet, which operates with a higher current requirement and also with slippage with wear, can be switched off from the current flow.

Diese patentierte Anordnung ist ideal für den Betrieb mehrtouriger Schlösser, bei denen zum Ver- oder Entriegeln bis zu 2 volle Umdrehungen der Abtriebsachse erforderlich sind.This patented arrangement is ideal for the operation of multi-turn locks, which require up to 2 full revolutions of the output axis to lock or unlock.

Für viertel- oder halbtourige Schlösser, bei denen bereits eine Viertel- oder eine Halbumdrehung der Abtriebsachse für eine volle Ver- oder Entriegelung des Schlosses ausreicht, ist die beschriebene Einrichtung unnötig aufwendig und voluminös.For quarter-turn or half-turn locks, in which a quarter or a half turn of the output axis is sufficient for a full locking or unlocking of the lock, the described device is unnecessarily complex and voluminous.

Der Erfindung liegt die Aufgabe zugrunde, eine weniger aufwendige und kompaktere Koppeleinrichtung zu schaffen.The invention has for its object to provide a less complex and compact coupling device.

Die Aufgabe ist durch die in Anspruch 1 gekennzeichneten Maßnahmen gelöst. Durch den Verzicht auf Haltemagnet und Haltebleche in Verbindung mit der Einführung einer elektronischen Umschaltung zwischen höherem Mitnahmestrom und geringerem Haltestrom wird die Koppeleinrichtung kürzer und preiswerter in der Herstellung, wobei der Betrieb hinsichtlich Verschleißfreiheit für die geplante Anwendung bei viertel- und halbtourigen Schlössern völlig ausreichend ist.The object is achieved by the measures characterized in claim 1. By dispensing with a holding magnet and holding plates in connection with the introduction of an electronic switch between higher driving current and lower holding current, the coupling device is shorter and cheaper to manufacture, whereby the operation with regard to freedom from wear is completely sufficient for the planned application with quarter and half-turn locks.

Durch die in Anspruch 2 gekennzeichneten Maßnahmen wird ein optimierter Haltestrom realisiert, der erhalten bleibt, solange die Bestromung der Koppeleinrichtung andauert.An optimized holding current is realized by the measures characterized in claim 2, which is maintained as long as the current supply to the coupling device continues.

Durch die in Anspruch 3 gekennzeichneten Maßnahmen wird ein ständiger Zweipunktbetrieb des Schwenkkörpers 8 erreicht, solange bei anhaltender Bestromung die Drehbewegung der Scheibe 7 andauert.Through the measures characterized in claim 3, a constant two-point operation of the swivel body 8 is achieved as long as the rotary movement of the disk 7 continues with current being supplied.

Durch die in Anspruch 4 beschriebene versenkbare Ausführung der Stifte 24 wird gewährleistet, daß in jeder Lage der Abtriebsachse 6 relativ zum Antriebselement 5 ein kraft- und zerstörungsfreies Einrasten des Mitnehmers 22 zwischen die Stifte 24 des Antriebselements 5 ermöglicht wird.The retractable design of the pins 24 described in claim 4 ensures that a force-free and non-destructive engagement of the driver 22 between the pins 24 of the drive element 5 is made possible in any position of the output axis 6 relative to the drive element 5.

Durch die in Anspruch 5 gekennzeichneten Maßnahmen wird eine Ausführung der Koppeleinrichtung mit zwei versetzten Achsen erreicht, die einen öffnungsfreien äußeren Schutz der sicherheitskritischen Schloßbereiche ermöglicht.The measures characterized in claim 5 achieve an embodiment of the coupling device with two offset axes, which enables an opening-free external protection of the security-critical lock areas.

Durch die in Anspruch 6 gekennzeichneten Maßnahmen wird ein weiteres Zahnrad in die Verschlußeinrichtung eingeführt, welches erlaubt, Antriebs- und Abtriebsachse in größerer Entfernung voneinander anzuordnen und welches außerdem eine Richtungsumkehr zwischen beiden Achsen ermöglicht.The measures characterized in claim 6 introduce a further gear wheel into the closure device, which allows the drive and driven axes to be arranged at a greater distance from one another and which also enables a reversal of direction between the two axes.

Durch die in Anspruch 7 gekennzeichneten Maßnahmen ergibt sich eine Anordnung, die gegen von außen kommende gewaltsame Öffnungsversuche sicher schützt, da alle sicherheitskritischen Bereiche des Schlosses durch eine Panzerplatte öffnungsfrei abgedeckt werden.The measures characterized in claim 7 result in an arrangement which reliably protects against violent attempts at opening coming from the outside, since all security-critical areas of the lock are covered by a reinforced plate without opening.

Weitere Maßnahmen und deren Vorteile ergeben sich aus der nachstehenden Beschreibung eines Ausführungsbeispiels der Erfindung. Es zeigen:

  • Fig. 1a, 1b und 1c: Vorrichtung zum Ankoppeln einer Antriebsachse an eine Abtriebsachse in einer geschnittenen Seitenansicht, einer geschnittenen Draufsicht und einer geschnittenen Detailsicht
  • Fig. 2: Antriebselement mit versenkbaren Stiften in einer Draufsicht und einer geschnittenen Seitenansicht
  • Fig. 3: Stromkreis zum Umschalten des Stroms von Mitnahmestrom auf Haltestrom
  • Fig. 4: Explosionszeichnung der Gesamtanordnung Verschlußeinrichtung.
Further measures and their advantages result from the following description of an embodiment of the invention. Show it:
  • 1a, 1b and 1c: Device for coupling a drive axle to an output axle in a sectioned side view, a sectioned plan view and a sectioned detail view
  • Fig. 2: drive element with retractable pins in a plan view and a sectional side view
  • Fig. 3: Circuit for switching the current from driving current to holding current
  • Fig. 4: Exploded view of the overall arrangement locking device.

In Fig. 1a ist die Koppeleinrichtung in einer geschnittenen Seitenansicht dargestellt. Die Antriebsachse 1, die von der Türaußenseite aus angetrieben werden kann, ist mit einem Zahnrad 2 fest verbunden. Dieses ist seinerseits mit einem Zahnrad 5 in ständigem Eingriff, welches um die Abtriebsachse 6 frei drehbar gelagert ist. An das Zahnrad 5 ist eine Scheibe 7 drehfest angebunden, die aus weichmagnetischem Material besteht und die den einen Teil einer elektromagnetischen Koppeleinrichtung darstellt.In Fig. 1a, the coupling device is shown in a sectional side view. The drive axle 1, which can be driven from the outside of the door, is firmly connected to a gearwheel 2. This in turn is in constant engagement with a gear 5, which is freely rotatable about the output axis 6. At the gear 5, a disc 7 is rotatably connected, which consists of soft magnetic material and the represents part of an electromagnetic coupling device.

Der zweite Teil der elektromagnetischen Koppeleinrichtung wird gebildet durch den Schwenkmagneten 9, der vorzugsweise als U-Magnet ausgebildet ist und eine Spule 10 zur Erzeugung eines Magnetflusses trägt. Mit Bestromung der Spule 10 fließt der magnetische Fluß von einem Schenkel des Magneten durch die Scheibe 7 zum anderen Schenkel zurück. Die Scheibe 7 wird hierdurch fest an den Schwenkmagneten 9 angezogen. Die sich berührenden Flächen des Schwenkmagneten 9 und der Scheibe 7 sind so aufeinander eingeschliffen, daß der Luftspalt zwischen beiden Teilen sehr gering ist. Hierdurch ergibt sich bereits bei sehr kleiner elektrischer Erregung ein großer Magnetfluß und damit eine stark anziehende Kraft zwischen der Scheibe 7 und dem Schwenkmagneten 9.The second part of the electromagnetic coupling device is formed by the swivel magnet 9, which is preferably designed as a U-magnet and carries a coil 10 for generating a magnetic flux. When the coil 10 is energized, the magnetic flux flows back from one leg of the magnet through the disk 7 to the other leg. The disc 7 is thereby firmly attracted to the swivel magnet 9. The contacting surfaces of the swivel magnet 9 and the disk 7 are ground in such a way that the air gap between the two parts is very small. This results in a large magnetic flux even with very low electrical excitation and thus a strongly attractive force between the disk 7 and the swivel magnet 9.

Mit Drehung der Achse 1 wird gleichzeitig die Scheibe 7 gedreht, womit bei erregtem Schwenkmagneten 9 der Schwenkkörper 8 um einen vorgegebenen Winkel mitdreht. Den für diesen Ausschwenkvorgang nötigen Stromfluß nennen wir Mitnahmestrom. Der Schwenkkörper 8 ist fest mit dem Schwenkmagneten 9 verbunden.With the rotation of the axis 1, the disk 7 is rotated at the same time, so that when the swivel magnet 9 is excited, the swivel body 8 also rotates by a predetermined angle. We call the current flow required for this swinging-out process entrainment current. The swivel body 8 is fixedly connected to the swivel magnet 9.

Am Schwenkkörper 8 ist ein Schwenkkontakt 3 angebracht. Wenn die vorgegebenen Ausschwenkwinkel in der einen oder anderen Ausschwenkrichtung erreicht sind, berührt der Schwenkkontakt 3 die elektrischen Kontakte 14 oder 15, wodurch ein Umschalten des Stroms vom höheren Mitnahme- auf den wesentlich geringeren Haltestrom bewirkt wird. Nähere Einzelheiten hierzu werden in Fig. 3 dargestellt.A swivel contact 3 is attached to the swivel body 8. When the predetermined swivel angle in one or the other swivel direction has been reached, the swivel contact 3 touches the electrical contacts 14 or 15, as a result of which the current is switched from the higher driving current to the substantially lower holding current. Further details are shown in FIG. 3.

Der Haltestrom kann so dimensioniert werden, daß die Berührung zwischen Schwenkkontakt 3 und den Kontakten 14 oder 15 so lange erhalten bleibt, wie die Bestromung andauert. Damit wird der ausgeschwenkte Schwenkkörper 8 in seiner Ausschwenkposition festgehalten. Mit Abschalten des Stroms wird der Schwenkkörper 8 durch Rückstellfedern 16, 17 in seine Ausgangslage zurückgeführt.The holding current can be dimensioned so that the contact between the pivoting contact 3 and the contacts 14 or 15 is maintained as long as the current supply lasts. The pivoted-out swivel body 8 is thus held in its swiveled-out position. When the current is switched off, the swiveling body 8 is returned to its starting position by return springs 16, 17.

Wie in Fig. 1b dargestellt, ist der Schwenkmagnet 9 mit dem Schwenkkörper 8 fest verbunden. Der Schwenkkörper 8 ist um die Abtriebsachse 6 drehbar gelagert, genauso wie ein Laufblech 20. Mit Drehung des Schwenkkörpers 8 wird durch diesen das Laufblech 20 mitgedreht.As shown in Fig. 1b, the swivel magnet 9 is fixed to the swivel body 8. The swivel body 8 is rotatably mounted about the output axis 6, just like a running plate 20. With the rotation of the swiveling body 8, the running plate 20 is rotated by the latter.

Fig. 1c zeigt eine geschnittene Teilansicht des Schwenkkörpers 8, des Laufblechs 20 und des Gehäuses 18. In das Gehäuse 18 sind Vertiefungen 19 eingearbeitet, in die Stege 21 hineinragen. Die Stege 21 sind mit dem Laufblech 20 fest verbunden. Die sich durch die Vertiefungen 19 ergebenden Anlaufschrägen führen dazu, daß mit Drehung des Laufblechs 20 dieses in axialer Richtung verschoben wird. Dadurch bedingt wird ein Mitnehmer 22, der in einer Einfräsung der Abtriebsachse 6 gelagert ist, gegen eine Feder 23 so weit nach oben verschoben, bis er voll in Stifte 24 eingreift, die mit dem Antriebselement 5 verbunden sind. Damit ist eine mechanische Kopplung zwischen der Antriebsachse 1 und der Abtriebsachse 6 hergestellt, über die große Kräfte übertragen werden können.1c shows a sectional partial view of the swivel body 8, the running plate 20 and the housing 18. Recesses 19 are incorporated into the housing 18, into which webs 21 protrude. The webs 21 are firmly connected to the tread plate 20. The run-up bevels resulting from the recesses 19 result in the running plate 20 being displaced in the axial direction when the running plate 20 rotates. As a result, a driver 22, which is mounted in a milled recess in the output shaft 6, is pushed upwards against a spring 23 until it fully engages in pins 24 which are connected to the drive element 5. This creates a mechanical coupling between the drive axle 1 and the output axle 6, via which large forces can be transmitted.

Fig. 2 zeigt in einer Detaildarstellung das Antriebselement 5 mit versenkbaren Stiften 24 in einer Draufsicht und in einer geschnittenen Seitenansicht. Je nach Lage der Abtriebsachse 6 relativ zum Antriebselement 5 kann es geschehen, daß beim Verschieben des Laufblechs 20 und damit des Mitnehmers 22 nach oben der Mitnehmer 22 auf die Stifte 24 aufsetzt. Um in diesem Fall ein kraft- und zerstörungsfreies Aufsetzen auf die Stifte 24 und späteres Einrasten zwischen die Stifte 24 zu ermöglichen, sind die Stifte 24 so gestaltet, daß sie beim Aufsetzen des Mitnehmers 22 in das Antriebselement 5 hinein versenkbar sind. Bei Weiterdrehung der Antriebsachse 1 und damit des Antriebselements 5 rastet der zunächst noch feststehende Mitnehmer 22 in die Lücke zwischen den Stiften 24 ein. Die Federn 25 bringen die versenkten Stifte 24 in Normallage zurück, so daß dann bei Weiterdrehung des Antriebselements 5 der Mitnehmer 22 mit Hilfe der Stifte 24 mitgedreht wird, wodurch dann die Mitdrehung der Abtriebsachse 6 erfolgt.Fig. 2 shows a detailed view of the drive element 5 with retractable pins 24 in a plan view and in a sectional side view. Depending on the position of the output shaft 6 relative to the drive element 5, it can happen that when the running plate 20 and thus the driver 22 are moved upward, the driver 22 touches the pins 24. In order to enable a force-free and non-destructive placement on the pins 24 and later latching between the pins 24, the pins 24 are designed such that they can be sunk into the drive element 5 when the driver 22 is placed on it. As the drive shaft 1 and thus the drive element 5 continue to rotate, the driver 22, which is initially still stationary, engages in the gap between the pins 24. The springs 25 bring the countersunk pins 24 back into the normal position, so that when the drive element 5 continues to rotate, the driver 22 is also rotated with the aid of the pins 24, as a result of which the output shaft 6 is also rotated.

Somit ist dann eine Ankopplung der Abtriebsachse 6 an die Antriebsachse 1 gegeben, solange der Stromfluß anhält.A coupling of the output axis 6 to the drive axis 1 is then provided as long as the current flow continues.

In Fig. 3 ist die einfachste Art eines Stromkreises zur Umschaltung zwischen Mitnahmestrom und Haltestrom näher dargestellt. Der Schalter 28 wird durch eine Elektronik gebildet, die nach richtiger Codeeingabe eine Spannungsquelle 29 an die Anordnung anschaltet. Wird an die Anordnung Spannung U angeschaltet und ist die Anordnung in ihrer Ruhelage, so sind die Kontakte 14, 15 gegenüber dem Schwenkkontakt 3 offen. In diesem Zustand ist der Transistor TR1 geöffnet, d.h. der volle Mitnahmestrom fließt durch die Spule 10 des Schwenkmagneten 9.In Fig. 3, the simplest type of circuit for switching between driving current and holding current is shown in more detail. The switch 28 is formed by electronics which, after the correct code input, connects a voltage source 29 to the arrangement. If voltage U is switched on to the arrangement and the arrangement is in its rest position, the contacts 14, 15 are open with respect to the swivel contact 3. In this state, transistor TR1 is open, i.e. the full driving current flows through the coil 10 of the swivel magnet 9.

Bei Drehung an der Antriebsachse 1 werden dann Schwenkmagnet 9 mit Schwenkkörper 8 durch die Scheibe 7 so weit ausgeschwenkt, bis der Schwenkkontakt 3 einen der Kontakte 14 oder 15 berührt. Damit wird der Transistor TR1 geschlossen und es fließt durch die Spule 10 nur noch ein kleiner Haltestrom über den Widerstand R2. Dieser Haltestrom kann durch richtige Dimensionierung von R2 und vom Widerstand der Spule 10 so eingestellt werden, daß der Kontakt so lange geschlossen bleibt wie die Bestromung andauert.When rotating on the drive shaft 1, the swivel magnet 9 with the swivel body 8 is then swung out through the disk 7 until the swivel contact 3 touches one of the contacts 14 or 15. The transistor TR1 is thus closed and only a small holding current flows through the coil 10 via the resistor R2. This holding current can be adjusted by correctly dimensioning R2 and the resistance of the coil 10 so that the contact remains closed as long as the current supply lasts.

Ist der Widerstand R2 zu hoch, - im extremen Fall unendlich -so ergibt sich für den Schwenkkörper 8 ein reiner Zweipunktbetrieb, was auch eine zulässige Betriebsart darstellt: kommt es zu Berührung zwischen Schwenkkontakt 3 und Kontakt 14 oder 15, so schließt der Transistor TR1. Damit geht der Strom in der Spule 10 über die Freilaufdiode D1 nach Null. Dadurch bedingt bewegt sich der Schwenkkörper 8 durch Federkraft wieder zurück in Richtung Null-Lage. Hierdurch wird die Berührung der Kontakte wieder aufgehoben. Über den Widerstand R1 wird der Transistor TR1 erneut geöffnet, womit der höhere Mitnahmestrom wieder über die Spule 10 fließen kann. Dadurch wird der Schwenkkörper 8 wieder mitgedreht bis zur erneuten Berührung der Kontakte usw. Dieses schnelle Ein- und Ausschalten der Spule 10 dauert an, solange die Anordnung bestromt ist und die Antriebsachse 1 gedreht wird.If the resistance R2 is too high - in the extreme case infinite - this results in a pure two-point operation for the swivel body 8, which is also a permissible operating mode: if there is contact between the swivel contact 3 and contact 14 or 15, the transistor TR1 closes. The current in the coil 10 thus goes to zero via the freewheeling diode D1. As a result, the swivel body 8 moves back towards the zero position by spring force. This removes the contact from the contacts. The transistor TR1 is opened again via the resistor R1, so that the higher driving current can flow again via the coil 10. As a result, the swivel body 8 is rotated again until the contacts are again touched, etc. This rapid switching on and off of the coil 10 continues as long as the arrangement is energized and the drive shaft 1 is rotated.

In Fig. 4 ist der Gesamtaufbau einer Verschlußeinrichtung mit Schloß 44 und einer Koppeleinrichtung 36 mit versetzten Achsen dargestellt. Die äußere Schutz- und Trägerplatte 35 ist gegen die Türinnenseite verschraubt. Durch die versetzte Anordnung von Antriebsachse 1 und Abtriebsachse 6 der Koppeleinrichtung 36 ist es möglich, den gesamten sicherheitskritischen Bereich des Schlosses 44 durch eine öffnungsfreie Panzerplatte 45 zu schützen.In Fig. 4, the overall structure of a locking device with lock 44 and a coupling device 36 with offset axes is shown. The outer protective and support plate 35 is screwed against the inside of the door. The staggered arrangement of drive axis 1 and output axis 6 of the coupling device 36 makes it possible to protect the entire safety-critical area of the lock 44 by means of an armor plate 45 that does not open.

Durch eine kleine Öffnung im nicht sicherheitskritischen Bereich unterhalb des Schlosses 44 wird die Antriebsachse 1 mit Hilfe einer Zwischenachse 39 in Richtung Türaußenseite verlängert. Über diese Achsen 39 und 1 kann mit Hilfe eines äußeren Drehelements 38 bei Bestromung des Schwenkmagneten 9 die Koppeleinrichtung betätigt werden, die ihrerseits über die Abtriebsachse 6 mit dem Schloß 44 und damit mit den Riegelelementen des Schlosses verbunden ist. Bei nicht bestromter Koppeleinrichtung sind Antriebsachse 1 und damit auch äußeres Drehelement 38 frei durchdrehbar.Through a small opening in the non-safety-critical area below the lock 44, the drive axle 1 is extended towards the outside of the door with the aid of an intermediate axle 39. Via these axes 39 and 1, the coupling device can be actuated with the aid of an outer rotary element 38 when the swivel magnet 9 is energized, which in turn is connected via the output axis 6 to the lock 44 and thus to the locking elements of the lock. When the coupling device is not energized, drive shaft 1 and thus also outer rotating element 38 can be freely rotated.

Die Abtriebsachse 6 ist von der türinnenseitigen Seite der Koppeleinrichtung 36 her zugänglich und erlaubt damit den direkten mechanischen Antrieb des Schlosses 44 mittels eines innneren Betätigungselements 40 von der Türinnenseite her.The output shaft 6 is accessible from the inside of the coupling device 36 on the inside of the door and thus permits the direct mechanical drive of the lock 44 by means of an inner actuating element 40 from the inside of the door.

Claims (7)

1. An arrangement for operating locking devices by means of an electrical signal, which is formed by positive comparison of key data entered with the preset lock data, and which actuates an electromagnetic coupling device enabling operation of the lock, by way of which an externally accessible rotary part is connected to a rotary part that performs the operation of the lock, with
the externally accessible rotary part being connected on the one hand with the driving element of a clutch, and on the other hand with the one part of the electromagnetic coupling device,
the rotary part performing the operation of the lock being connected with the driven element of the clutch, and the other part of the electromagnetic coupling device being connected with a part that determines the position of the coupling element of the clutch, which, upon the externally accessible part and the actuated electromagnetic coupling device being turned, moves the coupling element into engagement with the driving element and the driven element, the driving and driven elements being arranged coaxially to one another and the driving element being freely rotatable about the driven element,
a disk of soft-magnetic material, that forms the one part of the electromagnetic coupling device, being positively connected to the driving element,
a swivelling body pivoting about the driven element and bearing a swivelling magnet, which forms the other part of the electromagnetic coupling device,
the disk and the swivelling magnet being ground to a minimum air gap at their mutual contact surfaces,
a driver, which is carried so that it can slide axially and which is permanently engaged with the driven element, being shifted axially on rise bevels against spring resistance upon the swivelling body swinging out, thus engaging with pins of the driving element, and thereby establishing a mechanical coupling of the driven element with the driving element,
characterized by
a slewing contact 3 positioned on the swivelling body 8 touching electrical contacts 14 or 15 at a certain angle of swivel, when the swivelling body 8 swivels in either of the two possible directions, thereby causing the current flowing through the coil 10 of the swivelling magnet 9 to be reduced from the stronger driving current to the weaker holding current by means of an electronic circuit,
an increase from the weaker holding current to the stronger driving current being performed when the slewing contact 3 and the electrical contacts 14 or 15 cease to touch one another, and
the swivelling body 8 being returned by pull-back springs 16, 17, and thus also the driver 22 being returned by pull-back spring 23, to their respective initial positions when the current ceases to flow.
2. An arrangement according to Claim 1,
characterized by
the holding current being adjusted by means of an electronic circuit so that the slewing contact 3 keeps touching the contacts 14 or 15 as long as the rotary motion of disk 7 and the flow of current continue.
3. An arrangement according to Claim 1,
characterized by
the holding current being set so weak by means of an electronic circuit that the swivelling body 8 switches back and forth continuously between two positions as long as the flow of current and the rotary motion of disk 7 continue.
4. An arrangement according to Claim 1,
characterized by
the pins 24 of the driving element 5 are arranged to be recessible into driving element 5 against springs 25.
5. An arrangement according to Claim 1,
characterized by
the externally acccessible rotating part--the driving axle 1--being arranged with its axis parallel to and offset from the axis of the rotating part which operates the lock--the driven axle 6--and by the driving axle 1 carrying a gear wheel 2 that engages permanently with the driving element 5, which takes the form of a gear wheel.
6. An arrangement according to Claims 1 and 5,
characterized by
an additional reversing gear wheel being interposed between gear wheel 2 and the driving element in the form of a gear wheel 5.
7. An arrangement according to Claim 1,
characterized by
the area of the lock critical with respect to security, 44, being protected against an attack using force by an armour plate with no openings, 45, on the outer side of the door.
EP89100543A 1988-01-15 1989-01-13 Lock with an electromagnetic clutch and a current-retaining arrangement Expired - Lifetime EP0325171B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89100543T ATE78547T1 (en) 1988-01-15 1989-01-13 LOCKING DEVICE WITH CARRIER AND HOLDING CURRENT ARRANGEMENT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3801044 1988-01-15
DE3801044A DE3801044A1 (en) 1988-01-15 1988-01-15 LOCKING DEVICE WITH DRIVER AND HOLDING CURRENT ARRANGEMENT

Publications (2)

Publication Number Publication Date
EP0325171A1 EP0325171A1 (en) 1989-07-26
EP0325171B1 true EP0325171B1 (en) 1992-07-22

Family

ID=6345361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100543A Expired - Lifetime EP0325171B1 (en) 1988-01-15 1989-01-13 Lock with an electromagnetic clutch and a current-retaining arrangement

Country Status (3)

Country Link
EP (1) EP0325171B1 (en)
AT (1) ATE78547T1 (en)
DE (2) DE3801044A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674278B1 (en) * 1991-03-21 1995-10-06 Vachette Sa CONTROL DEVICE FOR A LOCK AND LOCK EQUIPPED WITH SUCH A DEVICE.
ES2331865B1 (en) * 2008-07-15 2010-10-28 Salto Systems, S.L. CLUTCH MECHANISM APPLICABLE TO ELECTROMECHANICAL CYLINDERS OF LOCKS.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4053939A (en) * 1974-11-25 1977-10-11 Kokusai Gijutsu Kaihatsu Kabushiki Kaisha Electric lock system
DE3338604C2 (en) * 1983-10-24 1986-02-13 Klaus Dr. 8022 Grünwald Meister Locking device with two-axis coupling device, holding magnet and driver

Also Published As

Publication number Publication date
ATE78547T1 (en) 1992-08-15
DE3801044A1 (en) 1989-07-27
DE58901855D1 (en) 1992-08-27
EP0325171A1 (en) 1989-07-26

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