EP1718824B1 - Door opener with a locking/release device for a pivoting catch of the door opener - Google Patents

Door opener with a locking/release device for a pivoting catch of the door opener Download PDF

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Publication number
EP1718824B1
EP1718824B1 EP20040758925 EP04758925A EP1718824B1 EP 1718824 B1 EP1718824 B1 EP 1718824B1 EP 20040758925 EP20040758925 EP 20040758925 EP 04758925 A EP04758925 A EP 04758925A EP 1718824 B1 EP1718824 B1 EP 1718824B1
Authority
EP
European Patent Office
Prior art keywords
lever
door opener
locking
safety
electromagnet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20040758925
Other languages
German (de)
French (fr)
Other versions
EP1718824A1 (en
EP1718824B2 (en
Inventor
Norman Wittke
Augustin Toma
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.)
Assa Abloy Sicherheitstechnik GmbH
Original Assignee
Assa Abloy Sicherheitstechnik GmbH
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Publication date
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Application filed by Assa Abloy Sicherheitstechnik GmbH filed Critical Assa Abloy Sicherheitstechnik GmbH
Publication of EP1718824A1 publication Critical patent/EP1718824A1/en
Publication of EP1718824B1 publication Critical patent/EP1718824B1/en
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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
    • 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
    • E05B2047/0072—Operation
    • E05B2047/0073—Current to unlock only
    • 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
    • E05B2047/0093—Operating or controlling locks or other fastening devices by electric or magnetic means including means for preventing manipulation by external shocks, blows or the like
    • 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
    • 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 a door opener with a locking / releasing device for a pivot latch of the door opener with a locking lever which locks or releases the pivot latch, and a safety lever which holds the locking lever in a locked position and pivotable by means of an electromagnet in a position releasing the locking lever is.
  • a lock / release device of a door opener with an arrangement of two safety levers of the above type wherein the second safety lever secures the first safety lever.
  • an electromagnet is arranged to control the two safety levers.
  • the second of the first mechanically decoupled locking lever is connected by magnetic coupling with one end of the electromagnet in operative connection and is adjustable from a first locking lever locking position in this releasing position.
  • an extendable from the coil winding body of the electromagnet pin for adjusting the first safety lever is provided.
  • barrier / release devices with impact protection have many, sometimes very delicate components, which are complex to manufacture and assemble.
  • the invention has for its object to provide a door opener with a locking / releasing device for a pivot latch, which makes do with a simple construction for impact protection of the door opener while allowing efficient production and assembly.
  • the safety lever is mounted in its center of mass.
  • the pivot or rotation axis is thus in the center of mass.
  • a preferred embodiment is that the safety lever is pivotable parallel or perpendicular to the axis of rotation of the pivotal latch.
  • the orientation and arrangement of the safety lever can be chosen depending on the installation position of the door opener.
  • the safety lever is symmetrical. This simplifies the mass balance of the safety lever.
  • an asymmetrical design is also conceivable, wherein the mass balance over the materials used for the respective areas of the safety lever is achieved. This may be required in confined spaces.
  • a preferred embodiment is that the safety lever has two lever arms and the electromagnet is in operative connection with the one lever arm and a compression spring in operative connection with the other lever arm.
  • the operative connection between the electromagnet and the one lever arm is greater than the operative connection between the bias voltage and the other lever arm.
  • the other lever arm of the safety lever is subjected to a bias voltage.
  • the force exerted on this lever arm due to a compression spring causes a rotation of the safety lever about the axis of rotation lying between the two lever arms in the center of gravity of the safety lever.
  • the torque effect generated from the bias voltage is smaller than that from the operative connection between the electromagnet and the safety lever.
  • the first and the second lever arm are aligned linearly and substantially in one direction.
  • the orientation of the lever arms is essentially dependent on the arrangement of the electromagnet.
  • the safety lever or the solenoid can be arranged vertically or horizontally.
  • the safety lever is assigned a micro-switch for monitoring the position of the safety lever. It is expedient that the microswitch is assigned to the acted upon by the compression spring lever arm. It is advantageous to arrange the microswitch and the compression spring on opposite sides of the lever arm. Due to the acting spring force, the lever arm then actuates the switch contact or moves away from it when the electromagnet is energized, wherein the state changes are respectively detected by the microswitch.
  • Fig. 1 shows in a side view with the housing cover removed a locking / releasing device of a door opener 15 in the locked position with a pivot latch 5, a locking lever 4, a safety lever 1 and an electromagnet 3, which is in operative connection with the safety lever 1.
  • Fig. 1 In this blocking position, the door opener is in a safe position, ie opening of the door opener, for example, by accidental, non-intended exposure to shock, vibration or violence is not possible ,
  • the locking lever 4 prevents the pivot latch 5 in the in Fig. 1 shown blocking position because it can be adjusted in the release position (not shown).
  • the locking lever 4 is integrally formed and rotatably supported about an axis 12. So that it can be returned from the release position to the blocking position, it is acted upon by means of a compression spring with a bias voltage (not shown).
  • a detent 13 is formed to allow engagement with the safety lever 1.
  • the substantially transverse (or perpendicular) to the locking lever 4 aligned safety lever 1 is rotatably mounted in its center of mass or center of gravity about a centrally disposed axis of rotation 10. Furthermore, it is symmetrical and integrally formed.
  • the safety lever 1 has two lever arms 6 and 7, which are arranged substantially linearly, in a direction parallel to each other and with a slight offset from each other.
  • On a side facing the pivotal catch 5 side of the first lever arm 6 is a compression spring 11, which acts on the first lever arm 6 and thus the safety lever 1 with a bias voltage. This compression spring 11 is used to return the safety lever 1 from the release position of the locking lever 4 in the locked position.
  • the second lever arm 7 located on the opposite side of the first lever arm 6 and adjacent to the locking lever 4 has a metallic or magnetic counterpart 16 on the side surface facing the electromagnet 3.
  • the locking lug 13 of the locking lever 4 engages on the latching edge 9 of the second lever arm 7 of the safety lever 1 on the opposite side surface of the second lever arm 7 is a linear sections, extending at right angles to each other in the form of a Abtreppung on that the locking lever 4 can not be rotated in the release position.
  • the locking edge 9 can also be designed in the form of a recess.
  • Fig. 1 further shows a microswitch 2 with a switch contact 17 for monitoring the position of the safety lever 1 and Hebelarms 6. This is at a transition to the blocking position provided that caused by the compression spring 11 rotation of the lever arm 6 of this with its side surface 8, the switch contact 17 is actuated and thus the microswitch 2 detects the blocking position. In a transition to the release position, the side surface 8 of the lever arm 6 moves accordingly away from the switch contact 17 and releases it. This state change is detected by the microswitch 2.
  • the microswitch 2 is aligned substantially parallel to the electromagnet 3, wherein both are arranged substantially perpendicular and above the safety lever 1 on the housing 14.
  • the direction of action of the electromagnet 3 extends substantially vertically or perpendicular to the lever arms 6 and 7 of the safety lever 1.
  • the electromagnet 3 consists of a coil winding body.
  • the electromagnet 3 has a stop contact 18, on which the counterpart 16 of the second lever arm 7 comes to rest.
  • the starting from the electromagnet 3 attraction to the counterpart 16 of the second lever arm 7 is designed so that the operative connection between the electromagnet 3 and the second lever arm 7 is greater than the operative connection between the compression spring 11 and the lever arm 6 of the safety lever 1.
  • the torque effect exerted about the axis of rotation 10 of the safety lever 1 by means of the compression spring 11 is such that it is smaller than the operative connection between the electromagnet 3 and the lever arm 7.
  • Fig. 2 are the same parts as in Fig. 1 denoted by the same reference numerals.
  • Fig. 2 is the lock / release device of the door opener 15 according to Fig. 1 shown in a side view with removed housing cover in the release position.
  • This the locking lever 4 and thus the pivot latch 5 releasing position is achieved by an adjustment or rotation of the safety lever 1 after energization of the electromagnet 3.
  • the energization of the electromagnet 3 wherein this then exerts an attractive force on the counterpart 16 of the second lever arm 7 of the safety lever 1.
  • This force must, as already explained above, be dimensioned such that they are on the one hand at least greater than the opposing forces acting in the blocking position and on the other hand at least so large that the locking lever 1 is at least as far pivoted about the axis of rotation 10 that the latch 13 of the locking lever 4 is no longer with the locking edge 9 of the second lever arm 7 of the safety lever 1 is engaged and thus released.
  • the force exerted by the electromagnet 3 attraction force on the second lever arm 7 is so large that it is pivoted so far until it rests against the stop contact 18 of the electromagnet 3.
  • the first lever arm 6 After completion of the energization of the electromagnet 3 and thus lack of force from the electromagnet 3 to the second lever arm 7, the first lever arm 6 is rotated back into the locked position to the top 8 of the biased compression spring 11 and the resulting restoring moment due to the force Lever arm 6, the switch contact 17 of the microswitch 2 is actuated. The microswitch then reports the blocking position.
  • the electromagnet 3 may be magnetically biased by means of a permanent magnet (not shown) such that its force action is activated in a non-energized state. In this way you get a quiescent current door opener.
  • FIGS. 1 and 2 vertically oriented door openers can be installed independently of location, so for example horizontally.
  • Another embodiment, not shown, is to provide a permanent magnet which is in operative connection with the first lever arm 6. It has the function of a holding magnet, so that the safety lever 1 is held in its locked position when the solenoid 3 is de-energized.

Landscapes

  • Lock And Its Accessories (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

The invention concerns a locking/unlocking device for a swivel latch of a door opener with a locking lever, that locks or unlocks the swivel latch, and a safety lock that holds the locking lever in a locking position and can be swiveled with the help of an electromagnet in a position unlocking the locking lever, wherein the safety lever is positioned in its center of gravity. Thus only one safety lever is required for the impact safety of the door opener, the susceptibility to shocks and vibrations can be reduced and a space-saving arrangement can be achieved. In a preferred form of execution, the safety lever has two arms wherein the electromagnet is in active connection with one lever arm and a compression spring is in active connection with the other lever arm. The assembly of the device is position-independent.

Description

Die Erfindung betrifft einen Türöffner mit einer Sperr-/Freigabevorrichtung für eine Schwenkfalle des Türöffners mit einem Sperrhebel, welcher die Schwenkfalle sperrt oder freigibt, und einem Sicherungshebel, welcher den Sperrhebel in einer Sperrstellung hält und mit Hilfe eines Elektromagneten in eine den Sperrhebel freigebende Stellung verschwenkbar ist.The invention relates to a door opener with a locking / releasing device for a pivot latch of the door opener with a locking lever which locks or releases the pivot latch, and a safety lever which holds the locking lever in a locked position and pivotable by means of an electromagnet in a position releasing the locking lever is.

Allgemein wird bei derartigen elektrischen Türöffnern die entriegelte bzw. verriegelte Stellung der Schwenkfalle über die Position des Sperrhebels, auch als Wechsel bezeichnet, bestimmt. Der den Sperrhebel haltende Sicherungshebel wird bei Bestromung des Elektromagneten betätigt und so verstellt, dass er den Sperrhebel und damit die Schwenkfalle freigibt. Ein derartiger Türöffner ist aus der EP 0 851 077 A1 bekannt. Als zusätzliche Maßnahme ist es weiterhin bekannt, den Sicherungshebel mit einem weiteren, vom oben genannten Sicherungshebel entkoppelten zweiten Sicherungshebel zu sichern, um ein ungewolltes Verstellen des ersten Sicherungshebels in eine entriegelnde Stellung der Schwenkfalle bzw. des Sperrhebels zu verhindern.Generally, in such electric strikes the unlocked or locked position of the pivot latch on the position of the locking lever, also referred to as change determined. The locking lever holding the locking lever is actuated when energized the solenoid and adjusted so that it releases the locking lever and thus the pivot latch. Such a door opener is from the EP 0 851 077 A1 known. As an additional measure, it is also known to secure the safety lever with another, decoupled from the above-mentioned locking lever second locking lever to prevent accidental adjustment of the first safety lever in an unlocking position of the pivot latch or the locking lever.

Aus der DE 19707759 C1 ist eine Sperr-/Freigabevorrichtung eines Türöffners mit einer Anordnung zweier Sicherungshebel der vorstehenden Art bekannt, wobei der zweite Sicherungshebel den ersten Sicherungshebel sichert. Zur Steuerung der beiden Sicherungshebel ist ein Elektromagnet angeordnet. Der zweite vom ersten mechanisch entkoppelte Sicherungshebel steht durch magnetische Kopplung mit einem Ende des Elektromagneten in Wirkverbindung und ist aus einer den ersten Sicherungshebel sperrenden Stellung in eine diesen freigebenden Stellung verstellbar. Am anderen Ende des Elektromagneten ist ein aus dem Spulenwickelkörper des Elektromagneten ausfahrbarer Stift zur Verstellung des ersten Sicherungshebels vorgesehen. Bei Bestromung der Spule des Elektromagneten wird deren Spulenkern magnetisiert und in die Spule hineingezogen und dadurch der daran magnetisch gekoppelte zweite Sicherungshebel verschwenkt. Gleichzeitig wird am anderen Ende der Spule der Spulenstift aus der Spule bewegt, was zu einem Verschwenken des ersten Sicherungshebels in die Freigabestellung führt. Der Türöffner befindet sich in Freigabestellung, wenn der erste Hebelarm des ersten Sicherungshebels nicht mehr mit dem Sperrhebel im Eingriff steht und eine Verdrehung des vorgespannten Sperrhebels erfolgen kann. Um die Rückführung der beiden Sicherungshebel in deren jeweils sperrende Stellung nach Entstromung des Elektromagneten zu ermöglichen, sind die zwischen der Gehäusewandung und jeweils einem der Hebelarme des jeweiligen Sicherungshebels Druckfedern vorgesehen.From the DE 19707759 C1 a lock / release device of a door opener with an arrangement of two safety levers of the above type is known, wherein the second safety lever secures the first safety lever. To control the two safety levers an electromagnet is arranged. The second of the first mechanically decoupled locking lever is connected by magnetic coupling with one end of the electromagnet in operative connection and is adjustable from a first locking lever locking position in this releasing position. At the other end of the electromagnet an extendable from the coil winding body of the electromagnet pin for adjusting the first safety lever is provided. When current flows through the coil of the electromagnet whose coil core is magnetized and pulled into the coil and thereby pivots the magnetically coupled thereto second safety lever. At the same time, at the other Moves end of the coil of the coil pin from the coil, resulting in a pivoting of the first safety lever in the release position. The door opener is in the release position when the first lever arm of the first safety lever is no longer engaged with the locking lever and a rotation of the prestressed locking lever can take place. In order to allow the return of the two safety levers in their respective blocking position after elimination of the electromagnet, which are provided between the housing and each one of the lever arms of the respective safety lever compression springs.

Diese und weitere bekannte Sperr-/Freigabevorrichtungen mit Aufschlagssicherung weisen viele, zum Teil sehr filigrane Bauteile auf, welche aufwändig herzustellen und zu montieren sind.These and other known barrier / release devices with impact protection have many, sometimes very delicate components, which are complex to manufacture and assemble.

Der Erfindung liegt die Aufgabe zugrunde, einen Türöffner mit einer Sperr-/Freigabevorrichtung für eine Schwenkfalle zu schaffen, welche mit einer einfachen Konstruktion zur Aufschlagssicherung des Türöffners auskommt und gleichzeitig eine effiziente Fertigung und Montage ermöglicht.The invention has for its object to provide a door opener with a locking / releasing device for a pivot latch, which makes do with a simple construction for impact protection of the door opener while allowing efficient production and assembly.

Die Aufgabe wird dadurch gelöst, dass der Sicherungshebel in seinem Massenmittelpunkt gelagert ist. Die Schwenk- bzw. Drehachse liegt somit im Massenmittelpunkt. Somit erfordert es keinen weiteren Sicherungshebel zur Gewährleistung der Aufschlagsicherung des Türöffners. Diese Maßnahme garantiert, dass der Sicherungshebel nicht durch eine Schlageinwirkung bewegt werden kann. Es wird also insbesondere bei einer äußeren Einwirkung auf das Gehäuse kein wirksames Moment auf den Sicherungshebel ausgeübt, welches eine Bewegung bewirken könnte.The object is achieved in that the safety lever is mounted in its center of mass. The pivot or rotation axis is thus in the center of mass. Thus, it requires no further safety lever to ensure the safety of the door opener. This measure ensures that the safety lever can not be moved by a blow impact. Thus, no effective moment is exerted on the securing lever, which could cause a movement, in particular in the case of an external action on the housing.

Eine bevorzugte Ausführungsform besteht darin, dass der Sicherungshebel parallel oder senkrecht zur Drehachse der Schwenkfalle verschwenkbar ist. Die Ausrichtung und Anordnung des Sicherungshebels kann dadurch je nach Einbaulage des Türöffners gewählt werden.A preferred embodiment is that the safety lever is pivotable parallel or perpendicular to the axis of rotation of the pivotal latch. The orientation and arrangement of the safety lever can be chosen depending on the installation position of the door opener.

Vorteilhaft ist es ferner, dass der Sicherungshebel symmetrisch ausgebildet ist. Dies vereinfacht den Massenausgleich des Sicherungshebels. Eine unsymmetrische Ausbildung ist allerdings auch denkbar, wobei der Massenausgleich über die verwendeten Materialien für die jeweiligen Bereiche des Sicherungshebels erreicht wird. Dies kann bei beengten Platzverhältnissen erforderlich sein.It is also advantageous that the safety lever is symmetrical. This simplifies the mass balance of the safety lever. However, an asymmetrical design is also conceivable, wherein the mass balance over the materials used for the respective areas of the safety lever is achieved. This may be required in confined spaces.

Eine bevorzugte Ausführungsform besteht darin, dass der Sicherungshebel zwei Hebelarme aufweist und der Elektromagnet in Wirkverbindung mit dem einen Hebelarm und eine Druckfeder in Wirkverbindung mit dem anderen Hebelarm steht. Für die Freigabe des Sperrhebels ist es erforderlich, dass die Wirkverbindung zwischen dem Elektromagneten und dem einen Hebelarm größer als die Wirkverbindung zwischen der Vorspannung und dem anderen Hebelarm ist. Zur Rückführung des Sicherungshebels aus einer den Sperrhebel freigebenden Stellung ist der andere Hebelarm des Sicherungshebels mit einer Vorspannung beaufschlagt. Die beispielsweise aufgrund einer Druckfeder auf diesen Hebelarm ausgeübte Kraft bewirkt eine Drehung des Sicherungshebels um die zwischen den beiden Hebelarmen im Schwerpunkt des Sicherungshebels liegende Drehachse. Grundsätzlich ist die aus der Vorspannung erzeugte Drehmomentwirkung kleiner als die aus der Wirkverbindung zwischen dem Elektromagneten und dem Sicherungshebel.A preferred embodiment is that the safety lever has two lever arms and the electromagnet is in operative connection with the one lever arm and a compression spring in operative connection with the other lever arm. For the release of the locking lever, it is necessary that the operative connection between the electromagnet and the one lever arm is greater than the operative connection between the bias voltage and the other lever arm. To return the safety lever from a position releasing the locking lever, the other lever arm of the safety lever is subjected to a bias voltage. The force exerted on this lever arm due to a compression spring, for example, causes a rotation of the safety lever about the axis of rotation lying between the two lever arms in the center of gravity of the safety lever. Basically, the torque effect generated from the bias voltage is smaller than that from the operative connection between the electromagnet and the safety lever.

Bei der Ausbildung des Sicherungshebels ist es vorteilhaft, dass der erste und der zweite Hebelarm linear und im wesentlichen in einer Richtung ausgerichtet sind. Die Ausrichtung der Hebelarme ist im wesentlichen von der Anordnung des Elektromagneten abhängig. Somit können der Sicherungshebel bzw. der Elektromagnet vertikal oder auch horizontal angeordnet werden.In the formation of the safety lever, it is advantageous that the first and the second lever arm are aligned linearly and substantially in one direction. The orientation of the lever arms is essentially dependent on the arrangement of the electromagnet. Thus, the safety lever or the solenoid can be arranged vertically or horizontally.

Im Verhältnis zum Elektromagneten und den Platzverhältnissen im Türöffnergehäuse ist auch eine versetzte Anordnung der Hebelarme möglich.In relation to the electromagnet and the space in the door opener housing and a staggered arrangement of the lever arms is possible.

In Zusammenhang mit einer Zustandsüberwachung des Sicherungshebel erweist es sich als vorteilhaft, dass dem Sicherungshebel ein Mikroschalter zur Überwachung der Position des Sicherungshebels zugeordnet ist. Hierbei ist es zweckmäßig, dass der Mikroschalter dem mit der Druckfeder beaufschlagten Hebelarm zugeordnet ist. Vorteilhaft ist dabei, den Mikroschalter und die Druckfeder auf gegenüberliegenden Seiten des Hebelarmes anzuordnen. Aufgrund der einwirkenden Federkraft betätigt der Hebelarm dann den Schalterkontakt bzw. entfernt sich bei einer Bestromung des Elektromagneten von diesem, wobei die Zustandsveränderungen jeweils durch den Mikroschalter detektiert werden.In connection with a condition monitoring of the safety lever, it proves to be advantageous that the safety lever is assigned a micro-switch for monitoring the position of the safety lever. It is expedient that the microswitch is assigned to the acted upon by the compression spring lever arm. It is advantageous to arrange the microswitch and the compression spring on opposite sides of the lever arm. Due to the acting spring force, the lever arm then actuates the switch contact or moves away from it when the electromagnet is energized, wherein the state changes are respectively detected by the microswitch.

Nachfolgend wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels unter Bezugnahme auf die Zeichnungen weiter erläutert. Es zeigen schematisch:

Fig. 1
eine Seitenansicht einer Sperr-/Freigabevorrichtung eines Türöffners in einer Sperrstel- lung; und
Fig. 2
die Sperr-/Freigabevorrichtung eines Türöffners gemäß Fig. 1 in einer Freigabestellung.
The invention will be further explained by means of a preferred embodiment with reference to the drawings. They show schematically:
Fig. 1
a side view of a lock / release device of a door opener in a locked position; and
Fig. 2
the lock / release device of a door opener according to Fig. 1 in a release position.

Fig. 1 zeigt in einer Seitenansicht bei abgenommenem Gehäusedeckel eine Sperr-/Freigabevorrichtung eines Türöffners 15 in Sperrstellung mit einer Schwenkfalle 5, einem Sperrhebel 4, einem Sicherungshebel 1 sowie einem Elektromagneten 3, der in Wirkverbindung mit dem Sicherungshebel 1 steht. Fig. 1 stellt die verriegelnde bzw. sperrende Stellung des Sperrhebels 4 und damit der Schwenkfalle 5 dar. Bei dieser Sperrstellung befindet sich der Türöffner in einer aufschlagsicheren Stellung, d. h. ein Öffnen des Türöffners beispielsweise durch zufälliges, nicht bestimmungsmäßiges Einwirken von Erschütterungen, Vibrationen oder Gewalteinwirkung ist nicht möglich. Fig. 1 shows in a side view with the housing cover removed a locking / releasing device of a door opener 15 in the locked position with a pivot latch 5, a locking lever 4, a safety lever 1 and an electromagnet 3, which is in operative connection with the safety lever 1. Fig. 1 In this blocking position, the door opener is in a safe position, ie opening of the door opener, for example, by accidental, non-intended exposure to shock, vibration or violence is not possible ,

Der Sperrhebel 4 hindert die Schwenkfalle 5 in der in Fig. 1 gezeigten Sperrstellung daran, dass diese in die Freigabestellung verstellt werden kann (nicht dargestellt). Der Sperrhebel 4 ist einstückig ausgebildet und um eine Achse 12 drehbar gelagert. Damit dieser aus der Freigabestellung in die Sperrstellung zurückgebracht werden kann, ist er mittels einer Druckfeder mit einer Vorspannung beaufschlagt (nicht dargestellt). An dem zur Drehachse 12 abgewandten Ende des Sperrhebels 4 ist eine Rastnase 13 ausgebildet, um einen Eingriff mit dem Sicherungshebel 1 zu ermöglichen.The locking lever 4 prevents the pivot latch 5 in the in Fig. 1 shown blocking position because it can be adjusted in the release position (not shown). The locking lever 4 is integrally formed and rotatably supported about an axis 12. So that it can be returned from the release position to the blocking position, it is acted upon by means of a compression spring with a bias voltage (not shown). At the end remote from the axis of rotation 12 of the locking lever 4, a detent 13 is formed to allow engagement with the safety lever 1.

Der im wesentlichen quer (bzw. senkrecht) zum Sperrhebel 4 ausgerichtete Sicherungshebel 1 ist in seinem Massenmittelpunkt bzw. Schwerpunkt um eine mittig angeordnete Drehachse 10 drehbar gelagert. Ferner ist er symmetrisch und einstückig ausgebildet. Der Sicherungshebel 1 weist zwei Hebelarme 6 und 7 auf, welche im wesentlichen linear, in einer Richtung parallel zueinander und mit einem leichten Versatz zueinander angeordnet sind. An einer zur Schwenkfalle 5 gerichteten Seite des ersten Hebelarmes 6 befindet sich eine Druckfeder 11, welche den ersten Hebelarm 6 und somit den Sicherungshebel 1 mit einer Vorspannung beaufschlagt. Diese Druckfeder 11 dient zur Rückführung des Sicherungshebels 1 aus der Freigabestellung des Sperrhebels 4 in die Sperrstellung. Der auf der gegenüberliegenden Seite des ersten Hebelarmes 6 und benachbart zum Sperrhebel 4 befindliche zweite Hebelarm 7 weist ein metallisches bzw. magnetisches Gegenstück 16 an der zum Elektromagneten 3 gerichteten Seitenfläche auf. An der dazu gegenüberliegenden Seitenfläche des zweiten Hebelarms 7 verläuft eine linear abschnittsweise, mit rechtwinklig zueinander in Form einer Abtreppung verlaufende Rastkante 9. In der Sperrstellung des Sicherungshebels 1 greift die Rastnase 13 des Sperrhebels 4 so an der Rastkante 9 des zweiten Hebelarmes 7 des Sicherungshebels 1 an, dass der Sperrhebel 4 nicht in die Freigabestellung verdreht werden kann. Die Rastkante 9 kann auch in Form einer Ausnehmung gestaltet sein.The substantially transverse (or perpendicular) to the locking lever 4 aligned safety lever 1 is rotatably mounted in its center of mass or center of gravity about a centrally disposed axis of rotation 10. Furthermore, it is symmetrical and integrally formed. The safety lever 1 has two lever arms 6 and 7, which are arranged substantially linearly, in a direction parallel to each other and with a slight offset from each other. On a side facing the pivotal catch 5 side of the first lever arm 6 is a compression spring 11, which acts on the first lever arm 6 and thus the safety lever 1 with a bias voltage. This compression spring 11 is used to return the safety lever 1 from the release position of the locking lever 4 in the locked position. The second lever arm 7 located on the opposite side of the first lever arm 6 and adjacent to the locking lever 4 has a metallic or magnetic counterpart 16 on the side surface facing the electromagnet 3. In the locking position of the safety lever 1, the locking lug 13 of the locking lever 4 engages on the latching edge 9 of the second lever arm 7 of the safety lever 1 on the opposite side surface of the second lever arm 7 is a linear sections, extending at right angles to each other in the form of a Abtreppung on that the locking lever 4 can not be rotated in the release position. The locking edge 9 can also be designed in the form of a recess.

Fig. 1 zeigt weiterhin einen Mikroschalter 2 mit einem Schalterkontakt 17 zur Überwachung der Position des Sicherungshebels 1 bzw. Hebelarms 6. Dazu ist bei einem Übergang in die Sperrstellung vorgesehen, dass durch die Druckfeder 11 bewirkte Drehung des Hebelarmes 6 dieser mit dessen Seitenfläche 8 den Schalterkontakt 17 betätigt und somit der Mikroschalter 2 die sperrende Stellung detektiert. Bei einem Übergang in die Freigabestellung bewegt sich die Seitenfläche 8 des Hebelarmes 6 dementsprechend von dem Schalterkontakt 17 weg und gibt diesen frei. Auch diese Zustandveränderung wird vom Mikroschalter 2 detektiert. Der Mikroschalter 2 ist im wesentlichen parallel zum Elektromagneten 3 ausgerichtet, wobei beide im wesentlichen senkrecht und oberhalb des Sicherungshebels 1 an dem Gehäuse 14 angeordnet sind. Die Wirkungsrichtung des Elektromagneten 3 verläuft im wesentlichen vertikal bzw. senkrecht zu den Hebelarmen 6 und 7 des Sicherungshebels 1. Dabei besteht der Elektromagnet 3 aus einem Spulenwickelkörper. Des weiteren weist der Elektromagnet 3 einen Anschlagkontakt 18 auf, an welchem das Gegenstück 16 des zweiten Hebelarms 7 zu liegen kommt. Fig. 1 further shows a microswitch 2 with a switch contact 17 for monitoring the position of the safety lever 1 and Hebelarms 6. This is at a transition to the blocking position provided that caused by the compression spring 11 rotation of the lever arm 6 of this with its side surface 8, the switch contact 17 is actuated and thus the microswitch 2 detects the blocking position. In a transition to the release position, the side surface 8 of the lever arm 6 moves accordingly away from the switch contact 17 and releases it. This state change is detected by the microswitch 2. The microswitch 2 is aligned substantially parallel to the electromagnet 3, wherein both are arranged substantially perpendicular and above the safety lever 1 on the housing 14. The direction of action of the electromagnet 3 extends substantially vertically or perpendicular to the lever arms 6 and 7 of the safety lever 1. In this case, the electromagnet 3 consists of a coil winding body. Furthermore, the electromagnet 3 has a stop contact 18, on which the counterpart 16 of the second lever arm 7 comes to rest.

Die von dem Elektromagneten 3 ausgehende Anziehungskraft auf das Gegenstück 16 des zweiten Hebelarmes 7 ist so ausgelegt, dass die Wirkverbindung zwischen dem Elektromagneten 3 und dem zweiten Hebelarm 7 größer als die Wirkverbindung zwischen der Druckfeder 11 und dem Hebelarm 6 des Sicherungshebels 1 ist. Anders ausgedrückt, ist die um die Drehachse 10 des Sicherungshebels 1 mittels der Druckfeder 11 ausgeübte Drehmomentenwirkung so bemessen, dass diese kleiner als die Wirkverbindung zwischen dem Elektromagneten 3 und dem Hebelarm 7 ist.The starting from the electromagnet 3 attraction to the counterpart 16 of the second lever arm 7 is designed so that the operative connection between the electromagnet 3 and the second lever arm 7 is greater than the operative connection between the compression spring 11 and the lever arm 6 of the safety lever 1. In other words, the torque effect exerted about the axis of rotation 10 of the safety lever 1 by means of the compression spring 11 is such that it is smaller than the operative connection between the electromagnet 3 and the lever arm 7.

Die in Fig. 1 dargestellte Sperrstellung zeigt den Türöffner 15 in einem nicht erregten bzw. unbestromten Zustand des Elektromagneten 3. Es wirkt also von dem Elektromagneten 3 keine Anziehungskraft auf den Hebelarm 7 des Sicherungshebels 1. Die Druckfeder 11 übt eine Druckkraft auf den Hebelarm 6 im Uhrzeigersinn aus. Diese Kraft bewirkt ein Drehmoment im Uhrzeigersinn um die Drehachse 10 und drückt den Hebelarm 7 gegen das dazu benachbarte Ende des Sperrhebels 4. Somit befindet sich die Rastkante 9 des zweiten Hebelarmes 7 mit der Rastnase 13 des Sperrhebels 4 in Eingriff und wird über das vorherrschende Drehmoment gesichert. Als Folge davon verhindert die Stellung des Sperrhebels 4 eine Entriegelung der Schwenkfalle 5 und damit das Öffnen des Türöffners.In the Fig. 1 It thus acts from the solenoid 3 is no attraction to the lever arm 7 of the safety lever 1. The compression spring 11 exerts a compressive force on the lever arm 6 in the clockwise direction. This force causes a clockwise torque about the axis of rotation 10 and presses the lever arm 7 against the adjacent end of the locking lever 4. Thus, the locking edge 9 of the second lever arm 7 is engaged with the locking lug 13 of the locking lever 4 and is on the prevailing torque secured. As a result, prevents the position of the locking lever 4 unlocking the pivot latch 5 and thus the opening of the door opener.

Falls bei einer nicht bestimmungsgemäßen Einwirkung auf den Türöffner, beispielsweise mittels Erschütterungen oder Gewalteinwirkung eine dynamische Schwingung bzw. eine Kraft auf das Gehäuse 14 des Türöffners 15 ausgeübt wird und von dort über den Sperrhebel 4 auf den Sicherungshebel 1 übertragen wird, wird die Verdrehung des Sicherungshebels 1 entgegen dem Uhrzeigersinn aus seiner Sperrstellung aufgrund der Lagerung des Sicherungshebels in dessen Massenmittelpunkt verhindert.If a dynamic vibration or force is exerted on the housing 14 of the door opener 15 and is transmitted from there via the locking lever 4 on the safety lever 1 in an improper action on the door opener, for example by vibration or violence a dynamic vibration or force, the rotation of the safety lever 1 counterclockwise out of his Locking position prevented due to the storage of the safety lever in the center of mass.

In den folgenden Ausführungen zu Fig. 2 sind gleiche Teile wie in Fig. 1 mit gleichen Bezugszeichen bezeichnet.In the following remarks too Fig. 2 are the same parts as in Fig. 1 denoted by the same reference numerals.

In Fig. 2 ist die Sperr-/Freigabevorrichtung des Türöffners 15 gemäß Fig. 1 in einer Seitenansicht bei abgenommenem Gehäusedeckel in Freigabestellung dargestellt. Diese den Sperrhebel 4 und damit die Schwenkfalle 5 freigebende Position wird durch eine Verstellung bzw. Verdrehung des Sicherungshebels 1 nach Bestromung des Elektromagneten 3 erreicht. Beispielsweise nach einer Betätigung eines Türöffnerschalters erfolgt die Bestromung des Elektromagneten 3, wobei dieser dann eine anziehende Kraft auf das Gegenstück 16 des zweiten Hebelarmes 7 des Sicherungshebels 1 ausübt. Diese Kraft muss dabei, wie oben bereits erläutert, so bemessen sein, dass sie einerseits mindestens größer als die in der Sperrstellung entgegengesetzt wirkenden Kräfte und andererseits mindestens so groß sein, dass der Sicherungshebel 1 mindestens soweit um die Drehachse 10 verschwenkt wird, dass die Rastnase 13 des Sperrhebels 4 nicht mehr mit der Rastkante 9 des zweiten Hebelarms 7 des Sicherungshebels 1 in Eingriff steht und damit freigegeben ist. In der Regel ist die von dem Elektromagneten 3 ausgeübte Anziehungskraft auf den zweiten Hebelarm 7 so groß, dass dieser so weit verschwenkt wird, bis er an dem Anschlagkontakt 18 des Elektromagneten 3 anliegt.In Fig. 2 is the lock / release device of the door opener 15 according to Fig. 1 shown in a side view with removed housing cover in the release position. This the locking lever 4 and thus the pivot latch 5 releasing position is achieved by an adjustment or rotation of the safety lever 1 after energization of the electromagnet 3. For example, after an operation of a door opener switch, the energization of the electromagnet 3, wherein this then exerts an attractive force on the counterpart 16 of the second lever arm 7 of the safety lever 1. This force must, as already explained above, be dimensioned such that they are on the one hand at least greater than the opposing forces acting in the blocking position and on the other hand at least so large that the locking lever 1 is at least as far pivoted about the axis of rotation 10 that the latch 13 of the locking lever 4 is no longer with the locking edge 9 of the second lever arm 7 of the safety lever 1 is engaged and thus released. In general, the force exerted by the electromagnet 3 attraction force on the second lever arm 7 is so large that it is pivoted so far until it rests against the stop contact 18 of the electromagnet 3.

Nach Beendigung der Bestromung des Elektromagneten 3 und damit fehlender Kraftwirkung vom Elektromagneten 3 auf den zweiten Hebelarm 7, wird der erste Hebelarm 6 in Folge der Kraftwirkung aus der vorgespannten Druckfeder 11 und des sich daraus ergebenden rückstellenden Momentes in die Sperrstellung zurückgedreht bis die Oberseite 8 des Hebelarms 6 den Schalterkontakt 17 des Mikroschalters 2 betätigt. Der Mikroschalter meldet dann die Sperrstellung.After completion of the energization of the electromagnet 3 and thus lack of force from the electromagnet 3 to the second lever arm 7, the first lever arm 6 is rotated back into the locked position to the top 8 of the biased compression spring 11 and the resulting restoring moment due to the force Lever arm 6, the switch contact 17 of the microswitch 2 is actuated. The microswitch then reports the blocking position.

Alternativ kann der Elektromagnet 3 mittels eines Permanentmagneten (nicht dargestellt) magnetisch so vorgespannt werden, dass dessen Kraftwirkung in einem nicht erregten bzw. unbestromten Zustand aktiviert wird. Auf diese Weise erhält man einen Ruhestrom-Türöffner.Alternatively, the electromagnet 3 may be magnetically biased by means of a permanent magnet (not shown) such that its force action is activated in a non-energized state. In this way you get a quiescent current door opener.

Der in den Figuren 1 und 2 vertikal ausgerichtete Türöffner kann lageunabhängig, also beispielsweise auch horizontal eingebaut werden.The in the FIGS. 1 and 2 vertically oriented door openers can be installed independently of location, so for example horizontally.

Eine weitere nicht dargestellte Ausführung besteht darin, einen Permanentmagneten vorzusehen, der in Wirkverbindung mit dem ersten Hebelarm 6 steht. Er hat die Funktion eines Haltemagneten, so dass der Sicherungshebels 1 bei unbestromtem Elektromagnet 3 in seiner Sperr-Position gehalten wird.Another embodiment, not shown, is to provide a permanent magnet which is in operative connection with the first lever arm 6. It has the function of a holding magnet, so that the safety lever 1 is held in its locked position when the solenoid 3 is de-energized.

Claims (9)

  1. A door opener with a locking/release apparatus for a pivoting catch (5) of the door opener (15), comprising a locking lever (4) which locks or releases the pivoting catch (5), and a securing lever (1) which is subject to a pretension and thus holds the locking lever (4) in the locked position and can be pivoted to a position releasing the locking lever (4) with the help of an electromagnet (3), characterized in that the securing lever (1) is mounted in the center point of mass thereof.
  2. A door opener according to claim 1, characterized in that the securing lever (1) can be pivoted parallel or perpendicularly to the rotational axis of the pivoting catch (5).
  3. A door opener according to one of the preceding claims, characterized in that the securing lever (1) is arranged symmetrically.
  4. A door opener according to one of the preceding claims, characterized in that the securing lever (1) comprises two lever arms (6, 7) and the electromagnet (3) is in operative connection with the one lever arm (7) and the pressure spring (11) is in operative connection with the other lever arm (6).
  5. A door opener according to claim 4, characterized in that the first and second lever arms (6 and 7) are aligned linearly and substantially in one direction.
  6. A door opener according to one of the preceding claims, characterized in that the securing lever (1) is associated with a microswitch (2) for monitoring the position of the securing lever (1).
  7. A door opener according to claim 6, characterized in that the microswitch (2) is associated with the lever arm (6) which is pressurized by the pressure spring (11).
  8. A door opener according to claim 7, characterized in that the microswitch (2) and the pressure spring (11) are arranged on opposite sides of the lever arm (6).
  9. A door opener according to one of the preceding claims, characterized in that a permanent magnet is provided which is in operative connection with the first lever arm (6) in such a way that it has the function of a holding magnet, so that the securing lever (1) is held in its locked position when the electromagnet (3) is currentless.
EP04758925.4A 2004-02-22 2004-09-15 Door opener with a locking/release device for a pivoting catch of the door opener Expired - Lifetime EP1718824B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410008348 DE102004008348B3 (en) 2004-02-22 2004-02-22 Lock / release device for a swing latch of a door opener
PCT/EP2004/010355 WO2005080718A1 (en) 2004-02-22 2004-09-15 Locking/release device for a pivoting catch for a door opener

Publications (3)

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EP1718824A1 EP1718824A1 (en) 2006-11-08
EP1718824B1 true EP1718824B1 (en) 2011-04-06
EP1718824B2 EP1718824B2 (en) 2013-11-06

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EP04758925.4A Expired - Lifetime EP1718824B2 (en) 2004-02-22 2004-09-15 Door opener with a locking/release device for a pivoting catch of the door opener

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US (1) US7562918B2 (en)
EP (1) EP1718824B2 (en)
AT (1) ATE504709T1 (en)
CA (1) CA2496159A1 (en)
DE (2) DE102004008348B3 (en)
ES (1) ES2362186T3 (en)
WO (1) WO2005080718A1 (en)

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Also Published As

Publication number Publication date
EP1718824A1 (en) 2006-11-08
US7562918B2 (en) 2009-07-21
EP1718824B2 (en) 2013-11-06
ATE504709T1 (en) 2011-04-15
CA2496159A1 (en) 2005-08-22
DE502004012388D1 (en) 2011-05-19
ES2362186T3 (en) 2011-06-29
DE102004008348B3 (en) 2005-10-20
US20060097525A1 (en) 2006-05-11
WO2005080718A1 (en) 2005-09-01

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