EP1627121B1 - Safety device for a door, especially a fire-proof door or similar - Google Patents

Safety device for a door, especially a fire-proof door or similar Download PDF

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Publication number
EP1627121B1
EP1627121B1 EP04739198A EP04739198A EP1627121B1 EP 1627121 B1 EP1627121 B1 EP 1627121B1 EP 04739198 A EP04739198 A EP 04739198A EP 04739198 A EP04739198 A EP 04739198A EP 1627121 B1 EP1627121 B1 EP 1627121B1
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EP
European Patent Office
Prior art keywords
safety device
door
fire
hinged armature
spring plunger
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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
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EP04739198A
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German (de)
French (fr)
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EP1627121A1 (en
Inventor
Jörg Bärenfänger
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Dorma Deutschland GmbH
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Dorma Deutschland GmbH
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Publication of EP1627121A1 publication Critical patent/EP1627121A1/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
    • E05B47/0046—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
    • E05B65/00—Locks or fastenings for special use
    • E05B65/10—Locks or fastenings for special use for panic or emergency doors
    • E05B65/104—Locks or fastenings for special use for panic or emergency doors actuated in response to heat, e.g. with fusible element, bimetal, memory shape or swelling material

Definitions

  • the invention relates to a safety device for a door, in particular a fire door or the like, with a housing in which a case is mounted, which is under the action of a locking bolt, and the locking bolt with a hinged armature can be latched, wherein the locking bolt and / or Hinged armature are spring-loaded in the direction of their mutual detent position, and wherein the hinged armature can be acted upon by an electromagnet.
  • the securing device consists of a rectangular box-shaped housing in which an electromagnet is mounted at the upper end. Under the electromagnet, a hinged armature is arranged, which is articulated in the housing and acted upon by a compression spring. On the underside of the hinged armature is provided with a recess into which engages in the locking position a mounted at the lower end of the housing locking bolt, which is acted upon by a housing spring on the pressure spring and on the opposite side has a recess into which a neck a trap intervenes.
  • the case can be pivoted against the force of a loading spring, if raised by switching on the electromagnet of the hinged armature and thus the locking latch is released.
  • the electromagnet when the electromagnet is de-energized, the compression spring pushes down the hinged armature in the locking position, wherein a locking takes place with the locking bar. In this position the trap can not be moved.
  • this known safety device is unsuitable for a fire door.
  • the fire door remains closed, the electromagnet is de-energized, so that the hinged armature driven by the compression spring moves down and locks the also acted upon by a compression spring locking bolt.
  • a compression spring locking bolt When occurring in the event of a fire high temperatures, for example, 1000 ° C, however, it may lead to melting of the springs.
  • the hinged armature still falls due to its own weight down, but due to the articulation of the locking bolt in the lower part of the housing, the locking bolt is not securely pivoted in the direction of the case without the support of his compression spring, so that the hinged armature can no longer securely lock the locking bolt.
  • This safety device is essentially rotated by 180 ° to the safety device according to the DE 75 16 495 U1 installed so that the solenoid is down and the locking bar is hinged at the top of the housing.
  • the hinged armature is pivoted upward against the force of a compression spring and comes in the de-energized state with the also acted upon by a compression spring locking bolt into engagement.
  • the folding lever can not move upwards in the direction of the locking bolt.
  • the locking bar will settle in an undefined position, so that it can no longer come to a lock between the hinged armature and the locking bolt.
  • a door emergency opening device in which a closing plate of a door assembly opposite end of a door latch has a stop.
  • the disc is at two opposite ends in cross-section in each case in a body trained groove section added.
  • a compression spring At a side facing the striker plate of the door latch stop is a compression spring such that the door latch with the side facing away from the strike plate of the door latch stopper is pressed against the disc.
  • the disc When exposed to heat, the disc is deformable, whereupon the compression spring pushes out the disc from the groove sections due to their bias on the door latch stop and moves the door latch in a door unlocking position.
  • the heat-expanding element may be a bimetal in a preferred embodiment. This is relatively cheap and can also be done high temperatures ensure safe loading of the parts in question.
  • the heat-expanding element may also be a memory metal.
  • the heat-expanding element may consist of a source material.
  • the source material preferably begins to swell already at about 100 ° C to set a defined startup process for the sources.
  • the element which expands when it is heated does not return to its original position during cooling, the element is not formed reversibly according to an advantageous development.
  • both the locking bolt and the hinged armature are acted upon by the same element. This reduces the number of parts required.
  • the locking bar and hinged armature can also be acted upon by different elements.
  • FIGS. 1 to 3 show two exemplary embodiments of a safety device which differ essentially only in the formation of the element which expands when it is hot. Therefore, the two embodiments of common components of the securing device will first be explained below.
  • the securing device according to the invention has a substantially rectangular box-shaped housing 1. From the housing 1 is a case 2, which is mounted in the housing 1 pivotally about an axis, not shown, extending in the longitudinal direction of the housing 1 axis.
  • a pendulum-like pivotable locking bolt 3 is mounted, which extends in the longitudinal direction of the housing 1 down.
  • the locking bolt 3 is biased by a spring 4 in the counterclockwise direction in the direction of the case 2.
  • a hinged armature 5 is mounted, which extends in the transverse direction of the housing 1 and is acted upon by a spring 6 in a clockwise direction.
  • a latching notch 7 is provided on an upwardly facing side, which can be brought into engagement with a latching lug 8 provided on the locking latch 3.
  • an electromagnet 9 is arranged (only shown in Figure 1), which can act on the hinged armature 5.
  • This safety device works as follows:
  • the hinged armature 5 In the de-energized state, the hinged armature 5 is pivoted by the spring 6 in the clockwise direction, so that the latching notch 7 engages with the latching lug 8. In this position, which is shown in Figures 1 to 3, the case 2 can not be moved because it is blocked by the locking bolt 3 held in its blocking position.
  • FIGS. 2 and 3 show a second embodiment of the securing device according to the invention.
  • the heat-expanding element 10 consists of a swelling material which - as described in connection with Figure 1 - the locking bar 3 and the hinged armature 5 applied in the direction of their mutual locking.
  • FIG. 2 shows a state in which the source material is still in its original state.
  • a state is shown in Figure 3, in which the source material has increased as a result of exposure to heat its volume and thereby holds the locking bar 3 and the hinged armature 5 in its locked position.
  • the source material is preferably adjusted so that it begins to swell only at a temperature of about 100 ° C.
  • the heat-expanding material 10 is not reversible, so that even with a cooling of the temperature, the once occupied position of the element 10 is maintained.
  • the locking bar 3 and the hinged armature 5 can be acted upon both either by a bimetal, a memory metal or a source material. According to a variant, not shown, it is also possible that, for example, the locking bar 3 by a bimetal and the hinged armature 6 are acted upon by a source material or vice versa.
  • the securing device according to the invention ensures that even with a failure of the springs 4 and 6 of the locking bolt 3 and the hinged armature 5 are brought into a position in which there is a secure locking of the locking bolt 3 on the hinged armature 5, whereby a movement of the case 2 and thus opening the door is reliably prevented.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Special Wing (AREA)

Abstract

The invention relates to a safety device for a door, especially a fire-proof door or similar. Said device comprises a housing (1) wherein a catch (2) is mounted, whereby said catch interacts with a safety catch (3), and said safety catch (3) can be locked with a moveable armature (5). The safety catch (3) and the moveable armature (5) are spring-loaded in the direction of the mutual lock position and the moveable armature (5) is impinged upon by an electromagnet (9). The aim of the invention is to produce a safety device for a door, especially a fire-proof door or similar, which guarantees the functioning thereof even in the event of a fire. The safety catch (3) and the moveable armature (5) are also impinged upon by a element (10) which expands under the effect of heat (10) in the direction of the mutual lock position.

Description

Die Erfindung betrifft eine Sicherungsvorrichtung für eine Tür, insbesondere eine Feuerschutztür oder dergleichen, mit einem Gehäuse, in dem eine Falle gelagert ist, die unter der Wirkung eines Sperrriegels steht, und der Sperrriegel mit einem Klappanker verrastbar ist, wobei der Sperrriegel und/oder der Klappanker in Richtung auf ihre gegenseitige Raststellung federbelastet sind, und wobei der Klappanker von einem Elektromagneten beaufschlagbar ist.The invention relates to a safety device for a door, in particular a fire door or the like, with a housing in which a case is mounted, which is under the action of a locking bolt, and the locking bolt with a hinged armature can be latched, wherein the locking bolt and / or Hinged armature are spring-loaded in the direction of their mutual detent position, and wherein the hinged armature can be acted upon by an electromagnet.

Eine solche Sicherungsvorrichtung ist aus der DE 75 16 495 U1 bekannt. Dort besteht die Sicherungsvorrichtung aus einem rechteckigen kastenförmigen Gehäuse, in dem am oberen Ende ein Elektromagnet gelagert ist. Unter dem Elektromagnet ist ein Klappanker angeordnet, der in dem Gehäuse angelenkt und von einer Druckfeder beaufschlagt ist. Auf der Unterseite ist der Klappanker mit einer Ausnehmung versehen, in die in der Verriegelungsstellung ein am unteren Ende des Gehäuses gelagerter Sperrriegel eingreift, der von einer sich an der Gehäusewand abstützenden Druckfeder beaufschlagt ist und auf der gegenüberliegenden Seite eine Aussparung aufweist, in die ein Ansatz einer Falle eingreift. Die Falle ist gegen die Kraft einer Belastungsfeder verschwenkbar, wenn durch Einschalten des Elektromagneten der Klappanker angehoben und damit der Sperrriegel freigegeben wird. Wenn der Elektromagnet dagegen stromlos geschaltet wird, so drückt die Druckfeder den Klappanker nach unten in die Verriegelungsstellung zurück, wobei eine Verrastung mit dem Sperrriegel erfolgt. In dieser Stellung kann die Falle nicht bewegt werden.Such a security device is from the DE 75 16 495 U1 known. There, the securing device consists of a rectangular box-shaped housing in which an electromagnet is mounted at the upper end. Under the electromagnet, a hinged armature is arranged, which is articulated in the housing and acted upon by a compression spring. On the underside of the hinged armature is provided with a recess into which engages in the locking position a mounted at the lower end of the housing locking bolt, which is acted upon by a housing spring on the pressure spring and on the opposite side has a recess into which a neck a trap intervenes. The case can be pivoted against the force of a loading spring, if raised by switching on the electromagnet of the hinged armature and thus the locking latch is released. On the other hand, when the electromagnet is de-energized, the compression spring pushes down the hinged armature in the locking position, wherein a locking takes place with the locking bar. In this position the trap can not be moved.

Diese bekannte Sicherungsvorrichtung ist für eine Feuerschutztür jedoch ungeeignet. Damit im Falle eines Brandes die Feuerschutztür geschlossen bleibt, wird der Elektromagnet stromlos geschaltet, so dass sich der Klappanker durch die Druckfeder getrieben nach unten bewegt und den ebenfalls von einer Druckfeder beaufschlagten Sperrriegel sperrt. Bei den im Falle eines Brandes auftretenden hohen Temperaturen von beispielsweise 1000° C kann es jedoch zu einem Schmelzen der Druckfedern kommen. Dies hat zur Folge, dass der Klappanker zwar noch aufgrund seines Eigengewichtes nach unten fällt, aber aufgrund der Anlenkung des Sperrriegels im unteren Bereich des Gehäuses wird der Sperrriegel ohne die Unterstützung seiner Druckfeder nicht mehr sicher in Richtung auf die Falle verschwenkt, so dass der Klappanker den Sperrriegel nicht mehr sicher verriegeln kann.However, this known safety device is unsuitable for a fire door. Thus, in the event of fire, the fire door remains closed, the electromagnet is de-energized, so that the hinged armature driven by the compression spring moves down and locks the also acted upon by a compression spring locking bolt. When occurring in the event of a fire high temperatures, for example, 1000 ° C, however, it may lead to melting of the springs. This has the consequence that the hinged armature still falls due to its own weight down, but due to the articulation of the locking bolt in the lower part of the housing, the locking bolt is not securely pivoted in the direction of the case without the support of his compression spring, so that the hinged armature can no longer securely lock the locking bolt.

In der DE 29 04 995 A1 ist eine ähnliche Sicherungsvorrichtung erläutert. Diese Sicherungsvorrichtung ist im Wesentlichen um 180° verdreht zur Sicherungsvorrichtung nach der DE 75 16 495 U1 eingebaut, so dass der Elektromagnet unten liegt und der Sperrriegel oben im Gehäuse angelenkt ist. Der Klappanker wird gegen die Kraft einer Druckfeder nach oben verschwenkt und gelangt im stromlosen Zustand mit dem ebenfalls von einer Druckfeder beaufschlagten Sperrriegel in Eingriff. Wenn im Falle eines Brandes jedoch die Federn schmelzen, kann sich der Klapphebel nicht mehr nach oben in Richtung auf den Sperrriegel zu bewegen. Der Sperrriegel wird sich in eine undefinierte Lage einpendeln, so dass es nicht mehr zu einer Verriegelung zwischen dem Klappanker und dem Sperrriegel kommen kann.In the DE 29 04 995 A1 a similar securing device is explained. This safety device is essentially rotated by 180 ° to the safety device according to the DE 75 16 495 U1 installed so that the solenoid is down and the locking bar is hinged at the top of the housing. The hinged armature is pivoted upward against the force of a compression spring and comes in the de-energized state with the also acted upon by a compression spring locking bolt into engagement. However, if in the event of a fire, the springs melt, the folding lever can not move upwards in the direction of the locking bolt. The locking bar will settle in an undefined position, so that it can no longer come to a lock between the hinged armature and the locking bolt.

Aus der FR 2 772 453 - A1 ist eine Tür-Notöffnungsvorrichtung bekannt, bei der ein einem Schließblech einer Türanordnung gegenüberliegendes Ende einer Türfalle einen Anschlag aufweist. Die Scheibe ist an zwei gegenüberliegenden Enden im Querschnitt jeweils in einem in einem Korpus ausgebildeten Nutabschnitt aufgenommen. An einer dem Schließblech zugewandten Seite des Türfallen-Anschlags liegt eine Druckfeder derart an, dass die Türfalle mit der dem Schließblech abgewandten Seite des Türfallen-Anschlags an der Scheibe angepresst anliegt. Bei Hitzeeinwirkung wird die Scheibe verformbar, woraufhin die Druckfeder aufgrund ihrer Vorspannung über den Türfallen-Anschlag die Scheibe aus den Nutabschnitten herausdrückt und die Türfalle in eine Tür-Entriegelungsstellung bewegt.From the FR 2 772 453 - A1 a door emergency opening device is known in which a closing plate of a door assembly opposite end of a door latch has a stop. The disc is at two opposite ends in cross-section in each case in a body trained groove section added. At a side facing the striker plate of the door latch stop is a compression spring such that the door latch with the side facing away from the strike plate of the door latch stopper is pressed against the disc. When exposed to heat, the disc is deformable, whereupon the compression spring pushes out the disc from the groove sections due to their bias on the door latch stop and moves the door latch in a door unlocking position.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Sicherungsvorrichtung für eine Tür, insbesondere eine Feuerschutztür oder dergleichen, anzugeben, bei der eine funktionssichere Zuhaltung auch im Brandfall gewährleistet ist.It is therefore an object of the present invention to provide a securing device for a door, in particular a fire door or the like, in which a functionally reliable tumbler is ensured even in case of fire.

Diese Aufgabe wird durch die im Patentanspruch 1 angegebenen Merkmale gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.This object is achieved by the features specified in claim 1. Advantageous developments emerge from the subclaims.

Dadurch, dass der Sperrriegel und der Klappanker zusätzlich von einem sich bei Wärme ausdehnenden Element in Richtung auf ihre gegenseitige Raststellung beaufschlagt sind, ist sichergestellt, dass auch bei einem Schmelzen der den Klappanker und den Sperrriegel beaufschlagenden Federn eine gesicherte Verrastung von Klappanker und Sperrriegel erfolgt. Somit ist im Falle eines Brandes zuverlässig gewährleistet, dass die Tür nicht geöffnet werden kann. Diese Ausgestaltung hat weiterhin den Vorteil, dass die erfindungsgemäße Sicherungsvorrichtung infolge ihrer gesamten Konstruktion unabhängig von ihrer Einbaulage funktionssicher arbeitet.Characterized in that the locking bolt and the hinged armature are additionally acted upon by a heat-expanding element in the direction of their mutual detent position, it is ensured that even with a melting of the hinged armature and the locking latch acting springs a secure locking of hinged armature and locking bolt. Thus, in case of a fire reliably ensures that the door can not be opened. This refinement furthermore has the advantage that the securing device according to the invention, owing to its entire construction, operates reliably regardless of its installation position.

Das sich bei Wärme ausdehnende Element kann nach einer bevorzugten Ausführungsform ein Bimetall sein. Dies ist relativ billig und kann auch bei hohen Temperaturen eine sichere Beaufschlagung der fraglichen Teile sicherstellen.The heat-expanding element may be a bimetal in a preferred embodiment. This is relatively cheap and can also be done high temperatures ensure safe loading of the parts in question.

Nach einer alternativen Ausführungsform kann das sich bei Wärme ausdehnende Element auch ein Memorymetall sein.According to an alternative embodiment, the heat-expanding element may also be a memory metal.

Nach einer weiteren Ausführungsform kann das sich bei Wärme ausdehnende Element aus einem Quellmaterial bestehen.According to a further embodiment, the heat-expanding element may consist of a source material.

Das Quellmaterial beginnt vorzugsweise bereits bei ca. 100° C zu quellen, um einen definierten Startvorgang für das Quellen festzulegen.The source material preferably begins to swell already at about 100 ° C to set a defined startup process for the sources.

Damit das sich bei Wärme ausdehnende Element bei einer Abkühlung nicht wieder in seine Ausgangsstellung zurückkehrt, ist das Element nach einer vorteilhaften Weiterbildung nicht reversibel ausgebildet.So that the element which expands when it is heated does not return to its original position during cooling, the element is not formed reversibly according to an advantageous development.

Nach einer vorteilhaften Weiterbildung werden sowohl der Sperrriegel wie auch der Klappanker von dem gleichen Element beaufschlagt. Dies reduziert die Anzahl der erforderlichen Teile.According to an advantageous development of both the locking bolt and the hinged armature are acted upon by the same element. This reduces the number of parts required.

Alternativ können der Sperrriegel und Klappanker aber auch von verschiedenen Elementen beaufschlagt werden.Alternatively, the locking bar and hinged armature can also be acted upon by different elements.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele.Further features and advantages of the invention will become apparent from the following description of preferred embodiments.

Es zeigen:

Figur 1:
eine erste Ausführungsform der erfindungsgemäßen Sicherungsvorrichtung,
Figur 2:
eine zweite Ausführungsform der erfindungsgemäßen Sicherungsvorrichtung und
Figur 3:
die zweite Ausführungsform im Falle eines Brandes.
Show it:
FIG. 1:
a first embodiment of the securing device according to the invention,
FIG. 2:
a second embodiment of the securing device according to the invention and
FIG. 3:
the second embodiment in the event of a fire.

In den Figuren 1 bis 3 sind zwei Ausführungsbeispiele einer Sicherungsvorrichtung dargestellt, die sich im Wesentlichen nur durch die Ausbildung des sich bei Wärme ausdehnenden Elementes unterscheiden. Deshalb werden im Folgenden zunächst die beiden Ausführungsformen gemeinsamer Bauteile der Sicherungsvorrichtung erläutert.FIGS. 1 to 3 show two exemplary embodiments of a safety device which differ essentially only in the formation of the element which expands when it is hot. Therefore, the two embodiments of common components of the securing device will first be explained below.

Die erfindungsgemäße Sicherungsvorrichtung weist ein im Wesentlichen rechteckiges kastenförmiges Gehäuse 1 auf. Aus dem Gehäuse 1 steht eine Falle 2 vor, die um eine nicht dargestellte in Längsrichtung des Gehäuses 1 verlaufende Achse schwenkbar in dem Gehäuse 1 gelagert ist.The securing device according to the invention has a substantially rectangular box-shaped housing 1. From the housing 1 is a case 2, which is mounted in the housing 1 pivotally about an axis, not shown, extending in the longitudinal direction of the housing 1 axis.

In einem oberen Eckbereich des Gehäuses 1 ist ein pendelartig verschwenkbarer Sperrriegel 3 gelagert, der sich in Längsrichtung des Gehäuses 1 nach unten erstreckt. Der Sperrriegel 3 wird von einer Feder 4 im Gegenuhrzeigersinn in Richtung der Falle 2 vorbelastet.In an upper corner region of the housing 1, a pendulum-like pivotable locking bolt 3 is mounted, which extends in the longitudinal direction of the housing 1 down. The locking bolt 3 is biased by a spring 4 in the counterclockwise direction in the direction of the case 2.

Im unteren Bereich des Gehäuses 1 ist ein Klappanker 5 gelagert, der sich in Querrichtung des Gehäuses 1 erstreckt und von einer Feder 6 im Uhrzeigersinn beaufschlagt wird. In dem Klappanker 5 ist auf einer nach oben weisenden Seite eine Rastkerbe 7 vorgesehen, welche mit einer an dem Sperrriegel 3 vorgesehenen Rastnase 8 in Eingriff bringbar ist.In the lower region of the housing 1, a hinged armature 5 is mounted, which extends in the transverse direction of the housing 1 and is acted upon by a spring 6 in a clockwise direction. In the hinged armature 5, a latching notch 7 is provided on an upwardly facing side, which can be brought into engagement with a latching lug 8 provided on the locking latch 3.

Unterhalb des Klappankers 5 ist ein Elektromagnet 9 angeordnet (nur in Figur 1 gezeigt), der auf den Klappanker 5 einwirken kann.Below the hinged armature 5, an electromagnet 9 is arranged (only shown in Figure 1), which can act on the hinged armature 5.

Diese Sicherungsvorrichtung arbeitet wie folgt:This safety device works as follows:

Im bestromten Zustand des Elektromagneten 9 zieht dieser den Klappanker 5 nach unten und hält ihn in dieser Stellung gegen die Kraft der Feder 6 fest. Da der Klappanker 5 in seiner unteren Stellung gehalten ist, kann die Rastkerbe 7 nicht mit der Rastnase 8 in Eingriff gelangen, so dass der Sperrriegel 3 gegen die Kraft der Feder 4 im Uhrzeigersinn verschwenkt werden kann, wenn sich die Falle 2 bewegt, was z. B. durch Druck oder Zug auf eine nicht dargestellte Tür erreicht würde.In the energized state of the electromagnet 9 this pulls the hinged armature 5 down and keeps him in this position against the force of the spring 6 firmly. Since the hinged armature 5 is held in its lower position, the locking notch 7 can not engage with the locking lug 8, so that the locking bolt 3 pivots against the force of the spring 4 in a clockwise direction can be when the case 2 moves, which z. B. would be achieved by pressure or train on a door, not shown.

Im stromlosen Zustand wird der Klappanker 5 von der Feder 6 im Uhrzeigersinn verschwenkt, so dass die Rastkerbe 7 mit der Rastnase 8 in Eingriff gelangt. In dieser Stellung, die in den Figuren 1 bis 3 gezeigt ist, kann die Falle 2 nicht bewegt werden, da sie durch den in seiner Sperrstellung gehaltenen Sperrriegel 3 blockiert ist.In the de-energized state, the hinged armature 5 is pivoted by the spring 6 in the clockwise direction, so that the latching notch 7 engages with the latching lug 8. In this position, which is shown in Figures 1 to 3, the case 2 can not be moved because it is blocked by the locking bolt 3 held in its blocking position.

Damit im Falle eines Brandes, bei dem unter Umständen die beiden Federn 4 und 6 infolge der Brandeinwirkung schmelzen und daher unwirksam sind, trotzdem eine sichere Funktion der Sicherungsvorrichtung gewährleistet werden kann, ist zusätzlich zu den Federn 4 und 6 ein sich bei Wärme ausdehnendes Element 10 vorgesehen. Dieses besteht gemäß Figur 1 aus einem Bimetall oder Memorymetall, welches im Brandfall auf den Sperrriegel 3 einwirkt und diesen im Gegenuhrzeigersinn verschwenkt. Ein weiteres Bimetall oder Memorymetall ist unterhalb des Klappankers 5 vorgesehen, um diesen im Brandfall im Uhrzeigersinn zu verschwenken, die angeschlossene Tür kann nicht mehr geöffnet werden.Thus, in the event of a fire in which possibly the two springs 4 and 6 melt as a result of fire and therefore ineffective, nevertheless a safe function of the safety device can be ensured, in addition to the springs 4 and 6, a heat-expanding element 10th intended. This consists according to Figure 1 of a bimetal or memory metal, which acts in the event of fire on the locking bolt 3 and this pivots in the counterclockwise direction. Another bimetal or memory metal is provided below the hinged armature 5 in order to pivot in the event of a fire in a clockwise direction, the connected door can not be opened.

In den Figuren 2 und 3 ist eine zweite Ausführungsform der erfindungsgemäßen Sicherungsvorrichtung dargestellt. Gemäß dieser Variante besteht das sich bei Wärme ausdehnende Element 10 aus einem Quellmaterial, das - wie im Zusammenhang mit der Figur 1 beschrieben - den Sperrriegel 3 und den Klappanker 5 in Richtung auf ihre gegenseitige Verrastung beaufschlagt.FIGS. 2 and 3 show a second embodiment of the securing device according to the invention. According to this variant, the heat-expanding element 10 consists of a swelling material which - as described in connection with Figure 1 - the locking bar 3 and the hinged armature 5 applied in the direction of their mutual locking.

In Figur 2 ist ein Zustand dargestellt, bei dem sich das Quellmaterial noch in seinem Ursprungszustand befindet. Dagegen ist in Figur 3 ein Zustand dargestellt, bei dem das Quellmaterial infolge von Hitzeeinwirkung sein Volumen vergrößert hat und dadurch den Sperrriegel 3 und den Klappanker 5 in ihrer Raststellung hält.FIG. 2 shows a state in which the source material is still in its original state. In contrast, a state is shown in Figure 3, in which the source material has increased as a result of exposure to heat its volume and thereby holds the locking bar 3 and the hinged armature 5 in its locked position.

Das Quellmaterial ist vorzugsweise so eingestellt, dass es erst bei einer Temperatur von ca. 100° C zu quellen beginnt.The source material is preferably adjusted so that it begins to swell only at a temperature of about 100 ° C.

Das sich bei Wärme ausdehnende Material 10 ist nicht reversibel, so dass auch bei einem Abkühlen der Temperatur die einmal eingenommene Stellung des Elementes 10 beibehalten wird.The heat-expanding material 10 is not reversible, so that even with a cooling of the temperature, the once occupied position of the element 10 is maintained.

Wie in den Figuren 1 bis 3 dargestellt, können der Sperrriegel 3 und der Klappanker 5 entweder beide von einem Bimetall, einem Memorymetall oder einem Quellmaterial beaufschlagt werden. Nach einer nicht dargestellten Variante ist es jedoch auch möglich, dass zum Beispiel der Sperrriegel 3 von einem Bimetall und der Klappanker 6 von einem Quellmaterial oder umgekehrt beaufschlagt werden.As shown in Figures 1 to 3, the locking bar 3 and the hinged armature 5 can be acted upon both either by a bimetal, a memory metal or a source material. According to a variant, not shown, it is also possible that, for example, the locking bar 3 by a bimetal and the hinged armature 6 are acted upon by a source material or vice versa.

Durch die erfindungsgemäße Sicherungsvorrichtung ist gewährleistet, dass auch bei einem Ausfall der Federn 4 und 6 der Sperrriegel 3 und der Klappanker 5 in eine Stellung gebracht werden, in der es zu einer sicheren Verrastung des Sperrriegels 3 am Klappanker 5 kommt, wodurch eine Bewegung der Falle 2 und damit ein Öffnen der Tür sicher verhindert wird.The securing device according to the invention ensures that even with a failure of the springs 4 and 6 of the locking bolt 3 and the hinged armature 5 are brought into a position in which there is a secure locking of the locking bolt 3 on the hinged armature 5, whereby a movement of the case 2 and thus opening the door is reliably prevented.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Gehäusecasing
22
FalleCases
33
Sperrriegelsafety catch
44
Federfeather
55
Klappankerhinged armature
66
Federfeather
77
Rastkerbenotch
88th
Rastnaselocking lug
99
Elektromagnetelectromagnet
1010
Elementelement

Claims (9)

  1. A safety device for a door, having a housing (1), in which a latch (2) is supported, which is under the influence of a spring plunger (3), and the spring plunger (3) can be latched with a swivel anchor (5), in which latching position the latch (2) is maintained in a locking position of the door by means of the spring plunger (3), the spring plunger (3) and the swivel anchor (5) being loaded respectively into the direction of their mutual latching position, the swivel anchor (5) being able to be loaded by means of a solenoid (9) in a direction away from the latching position, characterized in that the spring plunger (3) and the swivel anchor (5) can be additionally loaded into the direction of their mutual latching position by a thermally expanding member (10).
  2. A safety device according to claim 1, characterized in that the thermally expanding member (10) is a bimetal.
  3. A safety device according to claim 1, characterized in that the thermally expanding member (10) is a memory metal.
  4. A safety device according to claim 1, characterized in that the thermally expanding member (10) is a swelling agent.
  5. A safety device according to claim 4, characterized in that the swelling agent starts swelling at a temperature of about 100 °C.
  6. A safety device according to one of the claims 1 or 5, characterized in that the thermally expanding member (10) is non reversible.
  7. A safety device according to one of the preceding claims, characterized in that the spring plunger (3) and the swivel anchor (5) can be loaded by the same thermally expanding member (10).
  8. A safety device according to one of the preceding claims, characterized in that the spring plunger (3) and the swivel anchor (5) can be loaded by different thermally expanding members (10).
  9. A safety device according to one or several of the preceding claims, characterized in that the mounting position of the safety device is optional.
EP04739198A 2003-05-14 2004-05-13 Safety device for a door, especially a fire-proof door or similar Expired - Lifetime EP1627121B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10321802A DE10321802B4 (en) 2003-05-14 2003-05-14 Safety device for a door, in particular fire door or the like
PCT/EP2004/005144 WO2004101922A1 (en) 2003-05-14 2004-05-13 Safety device for a door, especially a fire-proof door or similar

Publications (2)

Publication Number Publication Date
EP1627121A1 EP1627121A1 (en) 2006-02-22
EP1627121B1 true EP1627121B1 (en) 2007-08-01

Family

ID=33440833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04739198A Expired - Lifetime EP1627121B1 (en) 2003-05-14 2004-05-13 Safety device for a door, especially a fire-proof door or similar

Country Status (7)

Country Link
EP (1) EP1627121B1 (en)
CN (1) CN1697912A (en)
AT (1) ATE368785T1 (en)
DE (2) DE10321802B4 (en)
ES (1) ES2291885T3 (en)
NO (1) NO20045525L (en)
WO (1) WO2004101922A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005009995B4 (en) * 2005-03-06 2012-12-13 Assa Abloy Sicherheitstechnik Gmbh Locking / releasing device for a swing latch of a door opener
DE102005009996A1 (en) * 2005-03-06 2006-09-14 Assa Abloy Sicherheitstechnik Gmbh Emergency lock for a fireproof door comprises a locking bar and a temperature-active device for actuating the locking bar
US8066462B2 (en) 2005-12-12 2011-11-29 Telezygology, Inc. Development in beam type fasteners
ITRM20110290A1 (en) * 2011-06-10 2012-12-11 Bitron Spa EMERGENCY DEVICE FOR HOUSEHOLD APPLIANCES.
DE102013223431B3 (en) * 2013-11-18 2014-11-13 BSH Bosch und Siemens Hausgeräte GmbH household appliance
EP3375957B1 (en) * 2017-03-17 2020-02-19 EUCHNER GmbH + Co. KG Locking device
ES2908343T3 (en) * 2017-12-21 2022-04-28 Trine Access Tech Electrically operated door lock with thermosensitive element
CA3088853A1 (en) * 2018-02-27 2019-09-06 Dormakaba Canada Inc. Strike assembly for door locking mechanism, and method of operation
NO345397B1 (en) * 2018-11-28 2021-01-18 Elok Laasproduksjon As Fire protection for bolt
CN111689414B (en) * 2020-06-24 2022-08-16 三一汽车起重机械有限公司 Locking mechanism, crane boom and truck crane

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7516495U (en) * 1975-10-16 Kaufmann J Safety device, in particular for electromagnetic door openers
DE7626523U1 (en) * 1976-08-25 1981-02-05 8890 Aichach FIRE PROTECTION DOOR
US4183565A (en) * 1978-08-28 1980-01-15 Norris Industries, Inc. Latch bolt locking mechanism for fire door locksets
DE2904995A1 (en) * 1979-02-09 1980-08-21 Fuss Fritz Kg Electric door opener for glass swing door - cooperates directly with edge of door without requiring extra components on door
DE3239177A1 (en) * 1982-10-22 1984-05-03 Dictator Technik - Ruef & Co, 8902 Neusäß Fire resisting door
DE3421695A1 (en) * 1984-06-12 1985-12-12 Deutsche Metalltürenwerke Aug. Schwarze AG, 4800 Bielefeld Fire door or the like
SE463678B (en) * 1989-02-10 1991-01-07 Laasinvaest Svenska Ab DEVICE AT LAASHUS
CA2163320A1 (en) * 1994-11-21 1996-05-22 William C. Turnbull Fused, spring latch
FR2772453B1 (en) * 1997-10-28 2000-03-10 Lavoillotte Ets DEVICE FOR AUTOMATIC RELEASE OF A MOBILE MEMBER IN RESPONSE TO A TEMPERATURE RISING
DE19754658C1 (en) * 1997-12-09 1998-12-24 Fuss Fritz Gmbh & Co Electric door opening actuator

Also Published As

Publication number Publication date
EP1627121A1 (en) 2006-02-22
ES2291885T3 (en) 2008-03-01
DE10321802B4 (en) 2012-09-13
NO20045525L (en) 2004-12-17
ATE368785T1 (en) 2007-08-15
DE10321802A1 (en) 2004-12-09
WO2004101922A1 (en) 2004-11-25
DE502004004510D1 (en) 2007-09-13
CN1697912A (en) 2005-11-16

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