EP0278359A2 - Electromagnetically controlled door opener - Google Patents

Electromagnetically controlled door opener Download PDF

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Publication number
EP0278359A2
EP0278359A2 EP88101421A EP88101421A EP0278359A2 EP 0278359 A2 EP0278359 A2 EP 0278359A2 EP 88101421 A EP88101421 A EP 88101421A EP 88101421 A EP88101421 A EP 88101421A EP 0278359 A2 EP0278359 A2 EP 0278359A2
Authority
EP
European Patent Office
Prior art keywords
door opener
slide
control slide
controlled door
electromagnetically controlled
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
EP88101421A
Other languages
German (de)
French (fr)
Other versions
EP0278359A3 (en
EP0278359B1 (en
Inventor
Günter Mauer
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.)
Mauer GmbH
Original Assignee
Mauer 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 Mauer GmbH filed Critical Mauer GmbH
Priority to AT88101421T priority Critical patent/ATE72290T1/en
Publication of EP0278359A2 publication Critical patent/EP0278359A2/en
Publication of EP0278359A3 publication Critical patent/EP0278359A3/en
Application granted granted Critical
Publication of EP0278359B1 publication Critical patent/EP0278359B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E05B47/0046—Electric or magnetic means in the striker or on the frame; Operating or controlling the striker plate
    • E05B47/0047—Striker rotating about an axis parallel to the wing edge
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/1082—Motor
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/68—Keepers
    • Y10T292/696—With movable dog, catch or striker
    • Y10T292/699—Motor controlled

Definitions

  • the invention relates to an electromagnetically controlled door opener for access doors with a hollow cuboid housing in which a striking plate is pivotally mounted.
  • the striking plate carries a cam that drives a one-armed lever.
  • the end of this lever rests on the edge of a control lever that carries an elongated magnetic armature.
  • This anchor is held in the rest position by the force of a spring, in which the striking plate is locked.
  • the electromagnet has a U-shaped yoke with two powerful coils. When the coils are energized with alternating current of low voltage, the yoke pulls the spring-loaded armature with the aid of lifting work, so that the cutting edge releases the lever and the striking plate. Since the magnetic force has to move the armature over a large air gap, a relatively large actuation current is required.
  • the invention has for its object to significantly reduce the magnet volume and the power requirement of such door openers.
  • the manufacture of the magnet should be simplified and made cheaper.
  • 1 is a cuboid housing, which has a trough-shaped recess 1a.
  • a striking plate 2 is pivotally mounted in a further shallow recess 1b.
  • the right edge 2a protrudes beyond the edge of the housing 1 and holds the latch of the door, not shown.
  • Two cylinder pins 3 and 4 which are inserted into bores of the housing 1, are used to mount the striking plate.
  • the striking plate 2 has a projection at the top left, which is designed as a drive wedge 2b. This wedge acts on a drive slide 5 shown in dotted lines, which has a wedge surface 5a.
  • a control slide 6, which has a locking pin 6a is mounted on the drive slide 5, which is only partially visible.
  • Both slides are movable in the longitudinal direction and provided with elongated holes through which a screw 7 passes.
  • a coil spring 8 is arranged between the control slide 5 and the housing 1.
  • Another coil spring 9 is located between a bevel 5b of the drive slide 5 and the control slide 6.
  • 10 denotes an electromagnet, which consists of a yoke 10a fixed to the housing, a coil 10b and an armature 10c, which rests pivotably on the control slide 6.
  • the door opener works as follows: If the striking plate is pivoted counter-clockwise when the electromagnet is not energized, it moves Wedge 2b, the wedge 5a and thus the entire drive slide 5 in the direction of the arrow 11.
  • the control slide 6 is carried along via the bevel 5b and the spring 9 because the armature 10c can detach from the yoke 10a.
  • the locking pin 6a moves under the drive wedge 2b until a locking surface 2b1 is seated on this pin and blocks the striking plate after a advance required for the control process.
  • Fig. 4 with 12 and 13 elongated holes are designated, in which movable nuts can be inserted through side openings.
  • the door opener is attached to a door fitting with 2 screws and can then be adjusted when installed.
  • FIG. 5 shows the trough shape of the housing 1, the U-shape of the drive slide 5 and the shape of the control slide 6 mounted in the drive slide.
  • the rear of the drive wedge 2b the wedge surface of which can be seen, can be seen the inclined surface 5a of the drive slide 5 rests.
  • a distance of about 2-3 mm remains in the rest state shown, so that the striking plate 2 and the slider 5, 6 can perform a certain advance in order to bring about the locking effect according to FIG. 2.
  • the magnet 10 has no lifting work to do.
  • the yoke 10a only needs to hold the anchor 10c optimally offered to it. A single small coil and extremely low excitation power are sufficient for this.
  • the magnet can therefore easily be fed from dry batteries with a few volts DC.
  • Battery-operated door openers are particularly advantageous in internal access systems, the opening impulse of which comes from a coding unit which is controlled by a magnetic stripe card or keypad.
  • the trigger pulses and the electronics can then be fed from a single battery, which keeps installation costs low.
  • the electric door opener can also be accommodated in the door leaf instead of in the door frame. An associated trap would then have to be stored in the frame.

Abstract

The invention relates to the improvement and further development of an electromagnetically controlled door opener. <??>Known door openers have a powerful electromagnet which pulls up a spring-loaded armature. A specific electrical energy is needed for the lifting work. <??>The object of the invention is to reduce the magnet volume and the power requirement. In the solution, the lock plate carries a tangentially acting wedge, this acts on a driving slide, a control slide is connected resiliently to this, and when an opening pulse occurs an electromagnet retains the control slide. Depending on the position of the control slide, a blocking surface of the lock plate runs up against a blocking pin or past this. <IMAGE>

Description

Technisches Gebiet Technical field

Die Erfindung betrifft einen elektromagnetisch gesteuerten Türöffner für Zugangstüren mit einem hohlen quaderförmigen Gehäuse, in dem ein Schließblech schwenkbar gelagert ist.The invention relates to an electromagnetically controlled door opener for access doors with a hollow cuboid housing in which a striking plate is pivotally mounted.

Stand der TechnikState of the art

Bei einem bekannten elektromagnetischen Türöffner trägt das Schließblech einen Nocken, der einen einarmigen Hebel antreibt. Das Ende dieses Hebels ruht auf der Schneide eines Steuerhebels, der einen langgestreckten Magnetanker trägt. Dieser Anker wird durch die Kraft einer Feder in der Ruhelage gehalten, in der das Schließblech gesperrt ist. Der Elektromagnet weist ein U-förmiges Joch mit zwei kräf­tigen Spulen auf. Wenn die Spulen mit Wechselstrom kleiner Spannung erregt werden, zieht das Joch unter Leistung von Hubarbeit den federbelasteten Anker an, so daß die Schneide den Hebel und das Schließblech freigibt. Da die Magnetkraft über einen großen Luftspalt den Anker bewegen muß, benötigt man einen relativ großen Betätigungsstrom.In a known electromagnetic door opener, the striking plate carries a cam that drives a one-armed lever. The end of this lever rests on the edge of a control lever that carries an elongated magnetic armature. This anchor is held in the rest position by the force of a spring, in which the striking plate is locked. The electromagnet has a U-shaped yoke with two powerful coils. When the coils are energized with alternating current of low voltage, the yoke pulls the spring-loaded armature with the aid of lifting work, so that the cutting edge releases the lever and the striking plate. Since the magnetic force has to move the armature over a large air gap, a relatively large actuation current is required.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt die Aufgabe zugrunde, das Magnetvolumen und den Leistungsbedarf solcher Türöffner entscheidend zu verringern. Insbesondere soll die Herstellung des Magneten vereinfacht und verbilligt werden.The invention has for its object to significantly reduce the magnet volume and the power requirement of such door openers. In particular, the manufacture of the magnet should be simplified and made cheaper.

Diese Aufgabe wir durch die Merkmale gemäß dem zweiten Teil des Patentanspruches 1 gelöst.This object is achieved by the features according to the second part of patent claim 1.

Beschreibung der ZeichnungenDescription of the drawings

Ein Ausführungsbeispiel der Erfindung wird anhand von Fig. 1 - 5 der Zeichnung erläutert.

  • Fig. 1 zeigt den Türöffner im Ruhezustand,
  • Fig. 2 beim Öffnungsversuch ohne Freigabeimpuls,
  • Fig. 3 im Öffnungszustand,
  • Fig. 4 eine Ansicht von der Schmalseite her,
  • Fig. 5 einen Querschnitt entlang der Linie AB in Fig. 1.
An embodiment of the invention is explained with reference to FIGS. 1-5 of the drawing.
  • 1 shows the door opener in the idle state,
  • 2 when trying to open without a release pulse,
  • 3 in the open state,
  • 4 is a view from the narrow side,
  • 5 shows a cross section along the line AB in FIG. 1st

In Fig. 1 ist mit 1 ein quaderförmiges Gehäuse bezeichnet, das eine trogförmige Aussparung 1a aufweist. In einer weiteren flacheren Aussparung 1b ist ein Schließblech 2 schwenkbar gelagert. Der rechte Rand 2a ragt über den Rand des Gehäuses 1 hinaus und hält die nicht dargestellte Falle der Tür fest. Zur Lagerung des Schließbleches dienen zwei Zylinderstifte 3 und 4, die in Bohrungen des Gehäuses 1 eingesetzt sind. Das Schließblech 2 weist links oben einen Vorsprung auf, der als Antriebskeil 2b ausgebildet ist. Dieser Keil wirkt auf einen punktiert dargestellten Antriebs­schieber 5 ein, der eine Keilfläche 5a aufweist. Auf dem nur teilweise sichtbaren Antriebsschieber 5 ist ein Steuerschie­ber 6 gelagert, der einen Sperrstift 6a aufweist. Beide Schieber sind in Längsrichtung beweglich und mit Langlöchern versehen, durch die eine Schraube 7 hindurchgreift. Zwischen dem Steuerschieber 5 und dem Gehäuse 1 ist eine Schrauben­feder 8 angeordnet. Eine weitere Schraubenfeder 9 liegt zwischen einer Abkantung 5b des Antriebsschiebers 5 und dem Steuerschieber 6. Mit 10 ist ein Elektromagnet bezeichnet, der aus einem gehäusefesten Joch 10a, einer Spule 10b und einem Anker 10c besteht, der schwenkbar auf dem Steuerschie­ber 6 ruht.In Fig. 1, 1 is a cuboid housing, which has a trough-shaped recess 1a. A striking plate 2 is pivotally mounted in a further shallow recess 1b. The right edge 2a protrudes beyond the edge of the housing 1 and holds the latch of the door, not shown. Two cylinder pins 3 and 4, which are inserted into bores of the housing 1, are used to mount the striking plate. The striking plate 2 has a projection at the top left, which is designed as a drive wedge 2b. This wedge acts on a drive slide 5 shown in dotted lines, which has a wedge surface 5a. A control slide 6, which has a locking pin 6a, is mounted on the drive slide 5, which is only partially visible. Both slides are movable in the longitudinal direction and provided with elongated holes through which a screw 7 passes. A coil spring 8 is arranged between the control slide 5 and the housing 1. Another coil spring 9 is located between a bevel 5b of the drive slide 5 and the control slide 6. 10 denotes an electromagnet, which consists of a yoke 10a fixed to the housing, a coil 10b and an armature 10c, which rests pivotably on the control slide 6.

Die Wirkungsweise des Türöffners ist folgende:
Wenn bei nicht erregtem Elektromagneten das Schließblech entgegen dem Uhrzeigersinn geschwenkt wird, verschiebt der Keil 2b den Keil 5a und damit den gesamten Antriebsschieber 5 in Richtung des Pfeiles 11. Dabei wird über die Abkantung 5b und die Feder 9 der Steuerschieber 6 mitgenommen, weil sich der Anker 10c vom Joch 10a lösen kann. Der Sperrstift 6a wandert unter den Antriebskeil 2b, bis eine Sperrfläche 2b1 auf diesem Stift aufsitzt und das Schließblech nach einem für den Steuervorgang erforderlichen Vorlauf blockiert.The door opener works as follows:
If the striking plate is pivoted counter-clockwise when the electromagnet is not energized, it moves Wedge 2b, the wedge 5a and thus the entire drive slide 5 in the direction of the arrow 11. The control slide 6 is carried along via the bevel 5b and the spring 9 because the armature 10c can detach from the yoke 10a. The locking pin 6a moves under the drive wedge 2b until a locking surface 2b1 is seated on this pin and blocks the striking plate after a advance required for the control process.

Dieser Zustand ist in Fig. 2 dargestellt.This state is shown in Fig. 2.

Wenn dagegen entsprechend Fig. 3 ein Öffnungsimpuls ansteht und der Anker 10b festgehalten wird, bleibt der Steuerschie­ber 6 mit dem Sperrstift 6a im Ruhezustand. Die Sperrfläche 2b1 läuft an dem Stuft 6a vorbei und der Antriebsschieber 5 wird ganz nach oben verschoeben. Das Schließblech 2 wird dabei so weit verschwenkt, daß seine Kante 2a nicht mehr übersteht und die Öffnung der Tür freigibt.
Sobald auf den Türöffner keine äußere Kraft mehr einwirkt, drückt die Feder 8 den Antriebsschieber 5 und das Schließ­blech 2 in die Ausgangslage zurück. Die Feder 9 hat eine sehr geringe Rückstellkraft. Sie muß lediglich in der Lage sein, den Steuerschieber 6 zu verstellen, wenn der Magnet 10 nicht erregt ist. Andererseits muß sie bei erregtem Magneten den gesamten Verstellweg des Antriebsschiebers 5 aufnehmen können. Die Federn 8 und 9 sind in nicht dargestellten Boh­rungen der Teile 1 und 5 gelagert, so daß sich relativ lange Federn und Federwege ergeben.3, however, if an opening pulse is present and the armature 10b is held, the control slide 6 with the locking pin 6a remains in the idle state. The blocking surface 2b1 runs past the step 6a and the drive slide 5 is shifted all the way up. The striking plate 2 is pivoted so far that its edge 2a no longer protrudes and releases the opening of the door.
As soon as no external force acts on the door opener, the spring 8 presses the drive slide 5 and the striking plate 2 back into the starting position. The spring 9 has a very low restoring force. You only need to be able to adjust the spool 6 when the magnet 10 is not energized. On the other hand, it must be able to accommodate the entire displacement of the drive slide 5 when the magnet is excited. The springs 8 and 9 are mounted in bores of parts 1 and 5, not shown, so that relatively long springs and spring travel result.

In Fig. 4 sind mit 12 und 13 Langlöcher bezeichnet, in die durch seitliche Öffnungen bewegliche Muttern eingesetzt werden können. Der Türöffner wird mit 2 Schrauben an einem Türbeschlag befestigt und kann dann im eingebauten Zustand einjustiert werden.In Fig. 4 with 12 and 13 elongated holes are designated, in which movable nuts can be inserted through side openings. The door opener is attached to a door fitting with 2 screws and can then be adjusted when installed.

Der Querschnitt in Fig. 5 zeigt die Trogform des Gehäuses 1, die U-form des Antriebsschieber 5 und die Form des in dem Antriebsschieber gelagerten Steuerschiebers 6. Man erkennt die Rückseite des Antriebskeiles 2b, dessen Keilfläche auf der geneigten Fläche 5a des Antriebsschiebers 5 aufliegt. Zwischen der Sperrfläche 2b1 und dem Sperrstift 6a ver­bleibt im dargestellten Ruhezustand ein Abstand von etwa 2 - 3 mm, so daß das Schließblech 2 und die Schieber 5, 6 einen gewissen Vorlauf ausführen können, um die Sperrwirkung nach Fig. 2 herbeizuführen.The cross section in FIG. 5 shows the trough shape of the housing 1, the U-shape of the drive slide 5 and the shape of the control slide 6 mounted in the drive slide. The rear of the drive wedge 2b, the wedge surface of which can be seen, can be seen the inclined surface 5a of the drive slide 5 rests. Between the locking surface 2b1 and the locking pin 6a, a distance of about 2-3 mm remains in the rest state shown, so that the striking plate 2 and the slider 5, 6 can perform a certain advance in order to bring about the locking effect according to FIG. 2.

Gewerbliche VerwertbarkeitCommercial usability

Sehr vorteilhaft ist bei dem beschriebenen Türöffner, daß der Magnet 10 keinerlei Hubarbeit zu leisten hat. Das Joch 10a braucht lediglich den ihm optimal angebotenen Anker 10c festzuhalten. Hierzu reicht eine einzige kleine Spule und eine äußerst geringe Erregerleistung aus.
Der Magnet kann daher auch leicht aus Trockenbatterien mit einigen Volt Gleichspannung gespeist werden. Um dem Besucher die Bereitschaft zur Türöffnung anzuzeigen, ist es möglich, mit einer Leucht- oder Blinkdiode ein optisches Signal zu geben.It is very advantageous in the door opener described that the magnet 10 has no lifting work to do. The yoke 10a only needs to hold the anchor 10c optimally offered to it. A single small coil and extremely low excitation power are sufficient for this.
The magnet can therefore easily be fed from dry batteries with a few volts DC. In order to indicate to the visitor the readiness to open the door, it is possible to give an optical signal with a light-emitting or blinking diode.

Batteriebetriebene Türöffner sind insbesondere bei innerbe­triebslichen Zugangssystemen vorteilhaft, deren Öffnungsim­puls von einer Codierungseinheit ausgeht, die durch Magnet­streifenkarte oder Tastenfeld angesteuert wird. Die Auslöse­impulse und die Elektronik können dann aus einer einzigen Batterie gespeist werden, wodurch die Einbaukosten klein gehalten werden.Battery-operated door openers are particularly advantageous in internal access systems, the opening impulse of which comes from a coding unit which is controlled by a magnetic stripe card or keypad. The trigger pulses and the electronics can then be fed from a single battery, which keeps installation costs low.

Grundsätzlich kann der elektrische Türöffner statt im Tür­rahmen auch im Türblatt untergebracht werden. Eine dazuge­hörende Falle müßte dann in der Zarge gelagert werden.In principle, the electric door opener can also be accommodated in the door leaf instead of in the door frame. An associated trap would then have to be stored in the frame.

BezugszeichenlisteReference symbol list

1 Gehäuse
1a, 1b Aussparungen
2 Schließblech
2a Schließblechrand
2b Antriebskeil
2b1 Sperrfläche
3, 4 Zylinderstifte
5 Antriebsschieber
5a Keilfläche
5b Abkantung
6 Steuerschieber
6a Sperrstift
7 Schraube
8, 9 Schraubenfedern
10 Elektromagnet
10a Joch
10b Spule
10c Anker
11 Pfeil
12, 13 Langlöcher
1 housing
1a, 1b recesses
2 striking plate
2a striking plate edge
2b drive wedge
2b1 restricted area
3, 4 cylinder pins
5 drive slides
5a wedge surface
5b folding
6 control spools
6a locking pin
7 screw
8, 9 coil springs
10 electromagnet
10a yoke
10b coil
10c anchor
11 arrow
12, 13 elongated holes

Claims (5)

1. Elektromagnetisch gesteuerter Türöffner für Zugangstüren mit einem hohlen, quaderförmigen Gehäuse (1), in dem ein Schließblech (2) schwenkbar gelagert ist,
dadurch gekennzeichnet, daß mit dem Schließblech (2) ein tangential wirkender Keil (2b) verbunden ist, daß der Keil auf einen axial verstellbaren Antriebsschieber (5) einwirkt, daß auf dem Antriebsschieber (5) ein Steuer­schieber (6) federnd gelagert ist und daß der Steuer­schieber (6) einen Sperrstift (6a) und einen Anker (10c) trägt, dem das gehäusefeste Joch (10a) eines Elektromag­neten (10) gegenüber steht.1. Electromagnetically controlled door opener for access doors with a hollow, cuboid-shaped housing (1) in which a striking plate (2) is pivotably mounted,
characterized in that a tangential wedge (2b) is connected to the striking plate (2), that the wedge acts on an axially adjustable drive slide (5), that a control slide (6) is resiliently mounted on the drive slide (5) and that the control slide (6) carries a locking pin (6a) and an armature (10c), which is opposite the fixed yoke (10a) of an electromagnet (10). 2. Elektromagnetisch gesteuerter Türöffner nach Anspruch 1,
dadurch gekennzeichnet, daß eine Keilfläche (2b) des Schließbleches (2) auf einer Keilfläche (5a) des Antriebs­schiebers (5) aufliegt und daß eine dem Keil benachbarte Sperrfläche (2b1) den auf dem Steuerschieber (6) angeord­neten Sperrstift (6a) passiert, falls der Steuerschieber (6) durch den Elektromagneten (10) festgehalten ist.2. Electromagnetically controlled door opener according to claim 1,
characterized in that a wedge surface (2b) of the striking plate (2) rests on a wedge surface (5a) of the drive slide (5) and that a locking surface (2b1) adjacent to the wedge passes the locking pin (6a) arranged on the control slide (6), if the control slide (6) is held by the electromagnet (10). 3. Elektromagnetisch gesteuerter Türöffner nach Anspruch 2,
dadurch gekennzeichnet, daß im Ruhezustand zwischen der Sperrfläche (2b1) des Schließbleches (2) und dem Sperr­stift (6a) des Steuerschiebers (6) ein den Vorlauf ermög­lichender Abstand besteht.3. Electromagnetically controlled door opener according to claim 2,
characterized in that, in the idle state, there is a distance enabling the advance between the locking surface (2b1) of the striking plate (2) and the locking pin (6a) of the control slide (6). 4. Elektromagnetisch gesteuerter Türöffner nach Anspruch 3,
dadurch gekennzeichnet, daß der Abstand etwa 2 - 3 mm beträgt.4. Electromagnetically controlled door opener according to claim 3,
characterized in that the distance is about 2-3 mm. 5. Elektromagnetisch gesteuerter Türöffner nach Anspruch 2,
dadurch gekennzeichnet, daß der Antriebsschieber (5) im wesentlichen U-förmig gestaltet ist, daß der Steuer­schieber (6) in der Aussparung des Antriebsschiebers (5) und der letztere in der Aussparung (1a) des Gehäuses (1) gelagert ist.5. Electromagnetically controlled door opener according to claim 2,
characterized in that the drive slide (5) is essentially U-shaped, that the control slide (6) is mounted in the recess of the drive slide (5) and the latter in the recess (1a) of the housing (1).
EP88101421A 1987-02-09 1988-02-02 Electromagnetically controlled door opener Expired - Lifetime EP0278359B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88101421T ATE72290T1 (en) 1987-02-09 1988-02-02 ELECTROMAGNETICALLY CONTROLLED DOOR OPENER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873703909 DE3703909A1 (en) 1987-02-09 1987-02-09 ELECTROMAGNETICALLY CONTROLLED DOOR OPENER
DE3703909 1987-02-09

Publications (3)

Publication Number Publication Date
EP0278359A2 true EP0278359A2 (en) 1988-08-17
EP0278359A3 EP0278359A3 (en) 1989-07-26
EP0278359B1 EP0278359B1 (en) 1992-01-29

Family

ID=6320560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101421A Expired - Lifetime EP0278359B1 (en) 1987-02-09 1988-02-02 Electromagnetically controlled door opener

Country Status (6)

Country Link
US (1) US4896909A (en)
EP (1) EP0278359B1 (en)
JP (1) JPS63201280A (en)
AT (1) ATE72290T1 (en)
DE (2) DE3703909A1 (en)
ES (1) ES2028914T3 (en)

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Also Published As

Publication number Publication date
US4896909A (en) 1990-01-30
ES2028914T3 (en) 1992-07-16
DE3868083D1 (en) 1992-03-12
JPS63201280A (en) 1988-08-19
EP0278359A3 (en) 1989-07-26
DE3703909A1 (en) 1988-08-18
EP0278359B1 (en) 1992-01-29
ATE72290T1 (en) 1992-02-15

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