EP0392290B1 - Anti-chute device for overhead doors, and safety device for tension springs - Google Patents

Anti-chute device for overhead doors, and safety device for tension springs Download PDF

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Publication number
EP0392290B1
EP0392290B1 EP90106126A EP90106126A EP0392290B1 EP 0392290 B1 EP0392290 B1 EP 0392290B1 EP 90106126 A EP90106126 A EP 90106126A EP 90106126 A EP90106126 A EP 90106126A EP 0392290 B1 EP0392290 B1 EP 0392290B1
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EP
European Patent Office
Prior art keywords
door
spring
over
tubular part
force
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Expired - Lifetime
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EP90106126A
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German (de)
French (fr)
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EP0392290A1 (en
Inventor
Reinhard Zills
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1207—Counterbalance devices with springs with tension springs
    • E05D13/1223—Spring safety devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1207—Counterbalance devices with springs with tension springs
    • E05D13/1215—Counterbalance devices with springs with tension springs specially adapted for overhead wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/40—Suspension arrangements for wings supported on arms movable in vertical planes
    • E05D15/42—Suspension arrangements for wings supported on arms movable in vertical planes with pivoted arms and horizontally-sliding guides
    • E05D15/425—Suspension arrangements for wings supported on arms movable in vertical planes with pivoted arms and horizontally-sliding guides specially adapted for overhead wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages

Definitions

  • the invention relates to a swing gate protection for swing gates with tension spring.
  • the up-and-over door safety device is designed as a down-door protection and prevents the up-and-over door from falling after a spring holding the up-and-over door breaks.
  • the up-and-over door is connected to the spring via a tension cable, which transfers the spring force to the up-and-over door.
  • a securing device is arranged in the area of the tensioning cable, which is essentially formed from a spring-loaded plunger and a spring-loaded catch pawl. The tappet and the catch pawl are pulled in opposite directions by the tension of the rope.
  • the device ensures that the overhead door does not fall, but after the tension spring breaks, considerable damage can be caused by spring parts moving in an uncontrolled manner.
  • a protective element for coil springs which prevents an uncontrolled movement of the coil spring parts after a spring break.
  • This protective element is loop-shaped and extends through the coil spring.
  • the coil spring parts can change their position only insignificantly due to the extension of the protective element through the interior of the coil spring parts, so that damage to the surroundings of the coil spring is largely excluded.
  • a crash of a swing gate provided with the coil spring cannot be avoided.
  • a protective element for coil springs is also known, which prevents an uncontrolled movement of the coil spring parts after a spring break.
  • This protective element is designed as a variable-length protective sheath of the coil spring by two or more displaceable sleeves. Due to their end formations, the sleeves block the longest possible extension position against each other. With the help of this device, however, a crash of a swing gate provided with the helical spring cannot be avoided either.
  • the object of the present invention is therefore to construct a swing gate safety device of the type mentioned in the introduction in such a way that it has a simple structure and at the same time reliably prevents both a falling of the swing gate and a deflection of spring parts.
  • the tubular parts which are guided into one another prevent the spring parts from deflecting because of their rod action and their fixed door connections.
  • the up-and-over door lock Due to the design of the up-and-over door lock according to the invention, this can be mounted as a simple, inexpensive additional and retrofit part in the spring cores of the door tension spring and can be connected to the upper door lever arms and lower spring holders of the various door brands by closing parts, which are designed, for example, as tabs, links or washers .
  • an adjusting ring is provided in the area of the inner tube part, which limits the spring retraction when the door leaf opens and cancels the spring drive force in the running rails. This adjusting ring ensures that the spring travel, which is variable by setting the driving force, is equal to the constant lever travel of the door leaf in favor of a soft stop in the running rails.
  • a sleeve is arranged as a closure on the inner tube part and lies against the outer tube part. This achieves an air pump effect and, depending on the use of single or double cuffs and air metering by means of a metering screw, the opening and closing speed of the door leaf is regulated. The resulting damping of the closing speed by reducing the vacuum results in a low-noise door leaf stop on a floor rail.
  • the figures show, on the one hand, the installation position of the device according to the invention and, on the other hand, also taking into account the connections (n, p), the position during the opening state of the door.
  • the compression spring (g) presses the eyelet receptacles (c, d) via the wedge rod (e) against the tension spring force acting as the gate clamping force when the gate is force-connected. If the tension spring force falls below the compressive force at the lower eyelet holder (d), the self-locking wedge surface of the wedge rod (e) moves by a certain stroke and generates a friction lock on the pipe displaceability via the ball (f), for example if the spring breaks.
  • Unlocking is carried out by external force and opening movements of the door while pushing the outer tube (a) and inner tube (b) together.
  • the interlocking pipe parts (a, b) prevent failure of the spring force, for example in the event of spring breakage, tear-off of the eyelets or bending of the eyelets due to their rod effect and their fixed door connections, the deflection of spring parts.
  • the starting force of the door tension spring (t) which acts as the driving force, is increased as required by extending the spring tension as a result of re-tensioning in order to achieve a balance with the load from the door mass and frictional forces. This increases the spring travel compared to a constant door lever travel with the consequence of an undesirable additional thrust when a door leaf stops in the running rails.
  • the adjusting ring (h) on the inner tube (b) limits the spring retraction or the spring travel and thus the additional force at the dead center in favor of a soft door leaf stop in the running rails when the door opens.
  • the soft fitting in the running tracks is therefore due to the equal positioning of the spring and lever travel.
  • the joint center piece (c) has an external pipe connection to the door lever with a venting and ventilation threaded hole with an air metering screw (m), which, via the additional single or double sleeve insert (i), serves as an internal seal in the inner tube (b) for the insertion and removal of the Controls pipe parts (a, b) depending on the speed. This achieves speed damping, especially when the door closes, and low-noise fogging on the bottom rail.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Gates (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The safety device is used as an economical and effective initial equipment and subsequent equipment part for door tension springs. If the spring force fails, the wedge-shaped rod (e), which is under pressure, blocks by means of the ball (f) the capacity of the tubular parts (a,b) connected to the doorframe (spring holder) and door lever (rocker) to slide one out of the other and provides a crash safeguard when the door closes. In the event of breaks and a lug pull-out at the door tension spring, the tubular linkage (a,b) is at the same time a deflection safeguard for the tensioned spring parts. By means of the setting ring (h) displaceable on the tubular part (b), a spring extension varied as a function of force and the constant door-lever travel during the opening of the door to the force dead centre in response to a spring retraction can be set. The drive-regulated door impact in the running rails thereby becomes more exact and less noisy. The outgoing-air and/or incoming-air metering (m) and the corresponding sleeve insert (i) within the tubular parts (a,b) damp the opening speed and/or especially usefully the closing speed of the door in the event of a difference between the spring drive and door mass. The impact on the bottom rail can thereby be regulated less noisily on the fixed door. <IMAGE>

Description

Die Erfindung betrifft eine Schwingtorsicherung für Schwingtore mit Zugfeder.The invention relates to a swing gate protection for swing gates with tension spring.

Eine derartige Schwingtorsicherung ist aus der DE-PS 34 27 105 bekannt. Die Schwingtorsicherung gemäß dieser Druckschrift ist als Schwingtorabsturzsicherung ausgebildet und verhindert ein Abstürzen des Schwingtores nach einem Bruch einer das Schwingtor halternden Feder. Das Schwingtor ist über ein Spannseil mit der Feder verbunden, das die Federkraft auf das Schwingtor überträgt. Im Bereich des Spannseiles ist eine Sicherungsvorrichtung angeordnet, die im wesentlichen aus einem federbelasteten Stößel und einer federbelasteten Fangklinke ausgebildet ist. Der Stößel und die Fangklinke werden durch die Zugspannung des Seiles in einander abgewandte Richtungen gezogen. Im Falle eines Seilrisses bewegen sich der Stößel und die Fangklinke aufgrund einer Kraftbeaufschlagung durch ihnen jeweils zugeordnete Spannfedern aufeinander zu und der Stößel drückt die Fangklinke in Richtung auf eine Fangschiene, die mit einem Torrahmen verbunden ist. Im Bereich der Fangschiene sind Öffnungen angeordnet, in die die Fangklinke das Tor arretierend eingreift. Diese Vorrichtung hat den Nachteil, daß bei einer Ausgangspositionierung der Fangklinke im Zwischenbereich von zwei Fangöffnungen das Schwingtor zunächst durch die Schwerkraft beschleunigt wird und durch die in die Fangöffnung eingreifende Fangklinke wieder abgebremst werden muß. Hierbei werden nicht unerhebliche Trägheitskräfte in die Fangvorrichtung eingeleitet, die zu Beschädigungen führen können.Such a swing gate protection is known from DE-PS 34 27 105. The up-and-over door safety device according to this publication is designed as a down-door protection and prevents the up-and-over door from falling after a spring holding the up-and-over door breaks. The up-and-over door is connected to the spring via a tension cable, which transfers the spring force to the up-and-over door. A securing device is arranged in the area of the tensioning cable, which is essentially formed from a spring-loaded plunger and a spring-loaded catch pawl. The tappet and the catch pawl are pulled in opposite directions by the tension of the rope. In the event of a rope break, the plunger and the catch pawl move towards one another due to the application of force by tension springs assigned to them, and the plunger presses the catch pawl in the direction of a catch rail which is connected to a goal frame. Openings are arranged in the area of the catch rail, into which the catch catch engages the gate. This device has the disadvantage that when the catch pawl is positioned in the intermediate region between two catch openings, the swing gate is first accelerated by gravity and must be braked again by the catch pawl engaging in the catch opening. Not inconsiderable inertial forces are introduced into the safety gear, which can lead to damage.

Darüber hinaus gewährleistet die Vorrichtung zwar eine Vermeidung des Absturzes des Schwingtores, nach einem Bruch der Zugfeder können jedoch erhebliche Beschädigungen durch sich unkontrolliert bewegende Federteile hervorgerufen werden.In addition, the device ensures that the overhead door does not fall, but after the tension spring breaks, considerable damage can be caused by spring parts moving in an uncontrolled manner.

Aus der DE-OS 35 38 801 ist ein Schutzelement für Schraubenfedern bekannt, das nach einem Federbruch eine unkontrollierte Bewegung der Schraubenfederteile verhindert. Dieses Schutzelement ist schlaufenförmig ausgebildet und erstreckt sich durch die Schraubenfeder hindurch. Im Falle eines Bruches der Schraubenfeder können die Schraubenfederteile aufgrund der Erstreckung des Schutzelementes durch die Innenräume der Schraubenfederteile hindurch ihre Position nur unwesentlich verändern, so daß Beschädigungen einer Umgebung der Schraubenfeder weitgehend ausgeschlossen sind. Mit Hilfe dieser Vorrichtung kann jedoch ein Absturz eines mit der Schraubenfeder versehenen Schwingtores nicht vermieden werden.From DE-OS 35 38 801 a protective element for coil springs is known, which prevents an uncontrolled movement of the coil spring parts after a spring break. This protective element is loop-shaped and extends through the coil spring. In the event of a breakage of the coil spring, the coil spring parts can change their position only insignificantly due to the extension of the protective element through the interior of the coil spring parts, so that damage to the surroundings of the coil spring is largely excluded. With the help of this device, however, a crash of a swing gate provided with the coil spring cannot be avoided.

Aus der DE-A-3440139 ist weiter ein Schutzelement für Schraubenzugfedern bekannt, das nach einem Federbruch eine unkontrollierte Bewegung der Schraubenfederteile verhindert. Dieses Schutzelement ist als längenveränderliche Schutzumhüllung der Schraubenfeder durch zwei oder mehrere verschiebbare Hülsen ausgebildet. Die Hülsen sperren durch ihre Endausbildungen gegeneinander die längstmögliche Ausziehstellung. Mit Hilfe dieser Vorrichtung kann jedoch ebenfalls ein Absturz eines mit der Schraubenfeder versehenen Schwingtores nicht vermieden werden.From DE-A-3440139 a protective element for coil springs is also known, which prevents an uncontrolled movement of the coil spring parts after a spring break. This protective element is designed as a variable-length protective sheath of the coil spring by two or more displaceable sleeves. Due to their end formations, the sleeves block the longest possible extension position against each other. With the help of this device, however, a crash of a swing gate provided with the helical spring cannot be avoided either.

Zur Gewährleistung sowohl einer Absturzsicherung als auch einer Zugfedersicherung ist es nach dem Stand der Technik erforderlich, jeweils spezielle Vorrichtungen vorzusehen, deren gemeinsame Verwendung einen erheblichen Aufwand verursacht.To ensure both fall protection and tension spring protection, it is necessary according to the prior art to provide special devices, the joint use of which requires considerable effort.

Aufgabe der vorliegenden Erfindung ist es daher, eine Schwingtorsicherung der einleitend genannten Art so zu konstruieren, daß sie einen einfachen Aufbau hat und gleichzeitig zuverässig sowohl einen Absturz des Schwingtores als auch ein Ausschlagen von Federteilen verhindert.The object of the present invention is therefore to construct a swing gate safety device of the type mentioned in the introduction in such a way that it has a simple structure and at the same time reliably prevents both a falling of the swing gate and a deflection of spring parts.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß bei Ausfall der Federkraft die Verschiebbarkeit zweier ineinander geführter und in den Federkern der Zugfeder montierter Rohrteile mit Toranschlüssen bei einem sich schließenden Torblatt gegeneinander sperrend beeinflußt wird durch eine im inneren Rohrteil auf die ausgefallene Federkraft reagierende Keilstange mit einer selbsthemmend ausgebildeten Keilfläche, die von einer beaufschlagenden Druckfeder verlagert wird und eine Kugel zunehmend gegen die Innenwandung des äußeren Rohrteiles drückt und somit das Tor durch Reibsperrung der Rohrverschiebbarkeit gegen Absturz sichert.This object is achieved in that, in the event of a failure of the spring force, the displaceability of two tube parts which are guided one inside the other and which are mounted in the spring core of the tension spring is influenced by a door leaf which reacts to the failed spring force with a self-locking mechanism and which locks against each other when the door leaf closes trained wedge surface, which is displaced by an applied compression spring and increasingly presses a ball against the inner wall of the outer tube part and thus secures the door against friction by locking the tube displaceability.

Die ineinander geführten Rohrteile verhindern bei Ausfallen der Federkraft, beispielsweise bei Federbruch, bei Ösenabriß oder bei Ösenaufbiegung wegen ihrer Stabwirkung und ihrer festen Toranschlüsse das Ausschlagen von Federteilen.If the spring force fails, for example in the event of spring breakage, tear-off of the eyelets or bending of the eyelets, the tubular parts which are guided into one another prevent the spring parts from deflecting because of their rod action and their fixed door connections.

Durch die erfindungsgemäße Ausbildung der Schwingtorsicherung kann dieses als einfaches, preiswertes Zusatz- und Nachrüstungsteil in die Federkerne der Torzugfeder montiert werden und durch Schlußteile, die beispielsweise als Laschen, Glieder oder Scheiben ausgebildet sind, an die oberen Torhebelarme und unteren Federhalter der verschiedenen Torfabrikate angeschlossen werden. Gemäß einer bevorzugten Ausführungsform der Erfindung ist im Bereich des inneren Rohrteiles ein Stellring vorgesehen, der den Federeinzug beim sich öffnenden Torblatt begrenzt und die Federantriebskraft in den Laufschienen aufhebt. Durch diesen Stellring wird die Gleichstellung des durch Antriebskrafteinstellung variablen Federweges mit dem konstanten Hebelweg des Torblattes zugunsten eines weichen Anschlages in den Laufschienen erreicht.Due to the design of the up-and-over door lock according to the invention, this can be mounted as a simple, inexpensive additional and retrofit part in the spring cores of the door tension spring and can be connected to the upper door lever arms and lower spring holders of the various door brands by closing parts, which are designed, for example, as tabs, links or washers . According to a preferred embodiment of the invention, an adjusting ring is provided in the area of the inner tube part, which limits the spring retraction when the door leaf opens and cancels the spring drive force in the running rails. This adjusting ring ensures that the spring travel, which is variable by setting the driving force, is equal to the constant lever travel of the door leaf in favor of a soft stop in the running rails.

Gemäß einer anderen bevorzugten Ausführungsform der Erfindung ist eine Manschette als Abschluß am inneren Rohrteil angeordnet und liegt am äußeren Rohrteil an. Hierdurch wird ein Luftpumpeneffekt erzielt und je nach Einsatz von Einfach-oder Doppelmanschetten sowie einer Luftdosierung durch eine Dosierschraube wird die Öffnungs- bzw. Schließgeschwindigkeit des Torblattes reguliert. Die hieraus resultierende Dämpfung der Schließgeschwindigkeit durch Unterdruckabbau bewirkt einen geräuscharmen Torblattanschlag an einer Bodenschiene.According to another preferred embodiment of the invention, a sleeve is arranged as a closure on the inner tube part and lies against the outer tube part. This achieves an air pump effect and, depending on the use of single or double cuffs and air metering by means of a metering screw, the opening and closing speed of the door leaf is regulated. The resulting damping of the closing speed by reducing the vacuum results in a low-noise door leaf stop on a floor rail.

Weitere Einzelheiten der Erfindung ergeben sich aus der nachfolgenden ausführlichen Beschreibung und den beigefügten Zeichnungen, in denen eine bevorzugte Ausführungsform der Erfindung beispielsweise veranschaulicht ist.Further details of the invention will become apparent from the following detailed description and the accompanying drawings, in which a preferred embodiment of the invention is illustrated, for example.

In den Zeichnungen zeigen:

  • Fig. 1: einen Teilschnitt als Vorderansicht und
  • Fig. 2: einen Teilschnitt als Seitenansicht der Schwingtorsicherung mit mechanischer Federantriebsregulierung.
The drawings show:
  • Fig. 1: a partial section as a front view and
  • Fig. 2: a partial section as a side view of the overhead lock with mechanical spring drive control.

Die Figuren zeigen zum einen die Montagestellung der erfindungsgemäßen Vorrichtung und zum anderen unter Berücksichtigung der Anschlüsse (n,p) auch die Stellung während des Öffnungszustandes des Tores.The figures show, on the one hand, the installation position of the device according to the invention and, on the other hand, also taking into account the connections (n, p), the position during the opening state of the door.

Zwei ineinander geführte verschiebbare runde Rohrteile (a,b) erstrecken sich im montierten Zustand gemeinsam innerhalb eines Federkernes einer Torzugsfeder (t). Es sind Flachhalbrundaufnahmen für die Zugfederösen (c,d) vorgesehen, die zum einen das Ende des Außenrohres (a) als Gelenkmittelstück für den Torhebelanschluß (c) und andererseits die Endausbildung der im Innenrohr (b) geführten Keilstange (e) darstellen. Die untere Ösenaufnahme (d) ist in der Endausbildung des Innenrohres (b) verdrehungsfrei geführt. Die Endausbildung des Innenrohres (b) bildet ein Gabelstück (r) für den Torfederhalter (p) aus. Die Druckfeder (g) drückt über die Keilstange (e) die Ösenaufnahmen (c,d) bei kraftverbundenem Torschluß gegen die als Torspannkraft wirkende Zugfederkraft. Unterschreitet die Zugfederkraft die Druckkraft an der unteren Ösenaufnahme (d), so bewegt sich die selbsthemmend ausgebildete Keilfläche der Keilstange (e) um einen bestimmten Hub und erzeugt über die Kugel (f) beispielsweise bei auftretendem Federbruch eine Reibsperrung der Rohrverschiebbarkeit.In the assembled state, two round tubular parts (a, b) which are guided one inside the other extend together within a spring core of a door tension spring (t). There are flat semicircular recordings for the tension spring eyes (c, d), which on the one hand represent the end of the outer tube (a) as a joint center piece for the door lever connection (c) and on the other hand the final design of the wedge rod (e) guided in the inner tube (b). The lower eyelet receptacle (d) is guided in the end configuration of the inner tube (b) without twisting. The final formation of the inner tube (b) forms a fork piece (r) for the door spring holder (p). The compression spring (g) presses the eyelet receptacles (c, d) via the wedge rod (e) against the tension spring force acting as the gate clamping force when the gate is force-connected. If the tension spring force falls below the compressive force at the lower eyelet holder (d), the self-locking wedge surface of the wedge rod (e) moves by a certain stroke and generates a friction lock on the pipe displaceability via the ball (f), for example if the spring breaks.

Die Entsperrung erfolgt durch äußere Kraft und Öffnungsbewegungen des Tores bei gleichzeitigem Ineinanderschieben von Außenrohr (a) und Innenrohr (b). Die ineinander geführten Rohrteile (a,b) verhindern bei Ausfallen der Federkraft, beispielsweise bei Federbruch, bei Ösenabriß oder bei Ösenaufbiegung wegen ihrer Stabwirkung und ihrer festen Toranschlüsse das Ausschlagen von Federteilen. Die als Antriebskraft wirkende Startkraft der Torzugfeder (t) wird durch eine Verlängerung des Federzuges infolge von Nachspannen bedarfsgemäß erhöht, um ein Gleichgewicht mit der Belastung aus Tormasse und Reibkräften zu erzielen. Hierdurch verlängert sich der Federweg gegenüber einem konstanten Torhebelweg mit der Folge einer unerwünschten zusätzlichen Schubkraft bei einem Torblattanschlag in den Laufschienen. Der Stellring (h) auf dem Innenrohr (b) begrenzt den Federeinzug bzw. den Federweg und damit die zusätzliche Kraft zum Krafttotpunkt zugunsten eines weichen Torblattanschlages in den Laufschienen bei einem sich öffnenden Tor. Der weiche beschlag in den Laufschienen erfolgt somit aufgrund der Gleichstellung des Federund Hebelweges.Unlocking is carried out by external force and opening movements of the door while pushing the outer tube (a) and inner tube (b) together. The interlocking pipe parts (a, b) prevent failure of the spring force, for example in the event of spring breakage, tear-off of the eyelets or bending of the eyelets due to their rod effect and their fixed door connections, the deflection of spring parts. The starting force of the door tension spring (t), which acts as the driving force, is increased as required by extending the spring tension as a result of re-tensioning in order to achieve a balance with the load from the door mass and frictional forces. This increases the spring travel compared to a constant door lever travel with the consequence of an undesirable additional thrust when a door leaf stops in the running rails. The adjusting ring (h) on the inner tube (b) limits the spring retraction or the spring travel and thus the additional force at the dead center in favor of a soft door leaf stop in the running rails when the door opens. The soft fitting in the running tracks is therefore due to the equal positioning of the spring and lever travel.

Das Gelenkmittelstück (c) weist als Außenrohranschluß an den Torhebel eine Ent- und Belüftungsgewindebohrung mit Luftdosierschraube (m) auf, die über den zusätzlichen einfachen bzw. doppelten Manschetteneinsatz (i) als innerer Abschluß im Innenrohr (b) die Ineinander- bzw. Auseinanderführung der Rohrteile (a,b) geschwindigkeitsabhängig regelt. Dadurch wird eine Geschwindigkeitsdämpfung besonders beim sich schließenden Tor sowie ein geräuscharmer beschlag an die Bodenschiene erreicht.The joint center piece (c) has an external pipe connection to the door lever with a venting and ventilation threaded hole with an air metering screw (m), which, via the additional single or double sleeve insert (i), serves as an internal seal in the inner tube (b) for the insertion and removal of the Controls pipe parts (a, b) depending on the speed. This achieves speed damping, especially when the door closes, and low-noise fogging on the bottom rail.

Claims (10)

1. Up-and-over door safeguard for up-and-over doors with a tension spring, characterised in that, in the event of failure of the spring force, when a door leaf is closing the displaceability of two tubular parts (a, b), guided one in the other, mounted in the spring core of the tension spring (t) and having door connections (n, p), is influenced, with the effect of blocking them relative to one another, by a wedge-shaped rod (e) reacting in the inner tubular part (b) to the failed spring force and having a self-locking wedge face which is shifted by a loading compression spring (g) and which increasingly presses a ball (f) against the inner wall of the outer tubular part (a) and thus safeguards the door against crashing down by means of a frictional blocking of the tube displaceability.
2. Up-and-over door safeguard according to Claim 1, characterised in that a setting ring (h) on the inner tubular part (b) limits the spring retraction when the door leaf is opening and cancels the spring drive force (pushing force) in the running rails.
3. Up-and-over door safeguard according to Claim 1, characterised in that a cuff (i) is arranged as a closure on the inner tubular part (b) and bears against the outer tubular part (a).
4. Up-and-over door safeguard according to Claim 3, characterised in that the cuff (i) is designed as a single cuff.
5. Up-and-over door safeguard according to Claim 4, characterised in that the cuff (i) is designed as a double cuff.
6. Up-and-over door safeguard according to Claims 1 to 5, characterised in that a metering screw (m) regulating the opening and closing speed of the door leaf is arranged in the region of the inner tubular part (b).
7. Up-and-over door safeguard according to Claims 1 to 6, characterised in that shallow half-round receptacles for the tension-spring lugs (c, d) are designed as a joint middle piece for the door-lever connection (c).
8. Up-and-over door safeguard according to Claims 1 to 7, characterised in that the shallow half-round receptacles are designed as the end formation of a wedge-shaped rod (e) guided in the inner tube (b).
9. Up-and-over door safeguard according to Claims 1 to 8, characterised in that the lower lug receptacle (d) is arranged within a fork piece (r) for the door-spring holder connection (p).
10. Up-and-over door safeguard according to Claims 1 to 9, characterised in that the outer tubular part (a) unblocks the ball (f) during an opening movement of the door leaf.
EP90106126A 1989-04-14 1990-03-30 Anti-chute device for overhead doors, and safety device for tension springs Expired - Lifetime EP0392290B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90106126T ATE79438T1 (en) 1989-04-14 1990-03-30 SWING DOOR FALL AND TENSION SPRING PROTECTION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3912291A DE3912291C1 (en) 1989-04-14 1989-04-14
DE3912291 1989-04-14

Publications (2)

Publication Number Publication Date
EP0392290A1 EP0392290A1 (en) 1990-10-17
EP0392290B1 true EP0392290B1 (en) 1992-08-12

Family

ID=6378677

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106126A Expired - Lifetime EP0392290B1 (en) 1989-04-14 1990-03-30 Anti-chute device for overhead doors, and safety device for tension springs

Country Status (4)

Country Link
EP (1) EP0392290B1 (en)
AT (1) ATE79438T1 (en)
DE (1) DE3912291C1 (en)
ES (1) ES2034789T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19701842C2 (en) * 1997-01-21 1999-03-04 Reinhard Zills Overhead gate crash and tension spring protection
DE19721914C2 (en) * 1997-05-26 1998-12-03 Reinhard Zills Self-locking tension spring set for up-and-over doors
US7254868B2 (en) 2004-12-27 2007-08-14 Wayne-Dalton Corp. winding and anti-drop assembly for door counterbalance system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE620566C (en) * 1934-07-26 1935-10-23 Francois Giessner Safety device for sliding window
DE7433129U (en) * 1974-10-02 1975-12-18 Waldner H Kg FALL LOCKING DEVICE
DE3200945C1 (en) * 1982-01-14 1983-05-19 Döring, Erich, 9442 Berneck, St. Gallen Garage swing door having a catch device for the door leaf
DE3427105A1 (en) * 1984-07-23 1986-01-30 Hörmann KG Brockhagen, 4803 Steinhagen Fishing gear
DE3440139A1 (en) * 1984-09-14 1986-03-27 Hörmann KG Amshausen, 4803 Steinhagen Protected spiral tension spring for gates or the like
DE3538801C2 (en) * 1985-10-31 1993-12-09 Hoermann Kg Overhead gate with counterbalance tension spring penetrated by a protective element

Also Published As

Publication number Publication date
ATE79438T1 (en) 1992-08-15
ES2034789T3 (en) 1993-04-01
EP0392290A1 (en) 1990-10-17
DE3912291C1 (en) 1990-07-26

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