EP0182019B1 - Accident prevention strip - Google Patents

Accident prevention strip Download PDF

Info

Publication number
EP0182019B1
EP0182019B1 EP85110991A EP85110991A EP0182019B1 EP 0182019 B1 EP0182019 B1 EP 0182019B1 EP 85110991 A EP85110991 A EP 85110991A EP 85110991 A EP85110991 A EP 85110991A EP 0182019 B1 EP0182019 B1 EP 0182019B1
Authority
EP
European Patent Office
Prior art keywords
door
accident prevention
pressure
door leaf
signal
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
Application number
EP85110991A
Other languages
German (de)
French (fr)
Other versions
EP0182019A3 (en
EP0182019A2 (en
Inventor
Michael Dipl.-Ing. Hörmann
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.)
Marantec Antriebs und Steuerungstechnik GmbH and Co KG
Original Assignee
Hoermann KG Antriebstecknik
Hoermann KG Antriebs und Steuerungstechnik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6250412&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0182019(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hoermann KG Antriebstecknik, Hoermann KG Antriebs und Steuerungstechnik filed Critical Hoermann KG Antriebstecknik
Priority to AT85110991T priority Critical patent/ATE42989T1/en
Publication of EP0182019A2 publication Critical patent/EP0182019A2/en
Publication of EP0182019A3 publication Critical patent/EP0182019A3/en
Application granted granted Critical
Publication of EP0182019B1 publication Critical patent/EP0182019B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E06B9/17046—Bottom bars
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E05F2015/487—Fault detection of safety edges
    • 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
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/65—Power or signal transmission
    • E05Y2400/66—Wireless transmission
    • E05Y2400/664—Wireless transmission by radio waves
    • 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E06B9/17076—Sealing or antirattling arrangements
    • E06B2009/17084—Sealing or antirattling arrangements closing outlet slot of shutter box
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • E06B2009/885—Braking mechanism activated by the bottom bar

Definitions

  • the invention relates to an accident protection strip with the features of the preamble of claim 1.
  • Accident protection strips of the type in question are available in various versions, for example as an electrical contact threshold or in particular in the form of a cavity provided in the strip, the volume of which decreases when hitting an obstacle, so that a medium enclosed in this cavity, in particular gaseous and usually air, is displaced, which is used to trigger a pressure switch.
  • the contact threshold or cavity extends practically over the length of the bar, which in turn is arranged to be guided over the entire length of the edge of the door leaf pointing in the closing direction. If the door leaf encounters an obstacle in the course of the closing movement with its edge pointing in the closing direction and thus the accident protection strip, a signal is emitted which is used to switch off or switch over the door leaf movement.
  • This and the devices required for it are known (e.g. DE-A-1 584 069).
  • the object of the invention is to provide an accident protection strip of the type mentioned at the outset with function monitoring that is as simple as possible.
  • an accident bar of the type in question triggers a signal when the edge of the door leaf pointing in the closing direction meets an obstacle.
  • Such an "obstacle” can also be the floor below the door opening to be closed if the door leaf is moved correspondingly far into the closed position.
  • This is used according to the invention to utilize the "alarm" signal that occurs now as a function monitoring signal, namely by using a limit switch actuated when the door leaf reaches the closed position as a distinguishing criterion between a real alarm signal and a function monitoring signal.
  • the accident protection strip is provided with an electrical threshold that closes a circuit when it is compressed or changes its resistance, the output signal corresponding to a compression of the strip is immediately available as an electrical signal at the outputs of this strip.
  • the accident protection strip is designed with a cavity, in particular filled with air or ventilated to the surroundings, a pressure wave signal occurs when pressure is applied and the cavity volume is reduced, which is fed to a pressure switch which converts this pressure signal into an electrical signal.
  • these signals are already routed via an electrical line, which does not impede the movement of the door leaf, to a location outside the door leaf, in which the evaluation device for these signals is arranged, for the intended triggering of the alarm.
  • a simply constructed comparator circuit is suitable for this purpose, at one input of which the output signal of the accident protection strip or of the pressure switch and at the other input of which the output signal of the limit switch is applied.
  • a timer can be switched on between the output of the limit switch and the associated input of the comparator circuit, which timer signal is triggered for a specific period of time when the limit switch is actuated is maintained during which an incoming signal from the accident protection strip is evaluated as a monitoring signal. If such a signal does not occur, then the evaluation circuit reports a lack of operational readiness or errors in the area of Accident protection strip up to the input of the comparator circuit.
  • this strip signal is used as an alarm signal for stopping or reversing the door leaf movement.
  • a failure of the bar signal when the door leaf closes is recognized as an error display.
  • the bar signals continuously as so-called active signals, in which case the electrical circuits are preferably made redundant for safety reasons. For example, two circles working in parallel are monitored individually, and an alarm is given if a circuit fails.
  • the closed-circuit principle is preferably used because it enables continuous monitoring of the switches and lines in a simple manner.
  • This signal which is now provided and evaluated according to the invention, is ensured in a further preferred embodiment and insofar irrespective of the nature of the floor below the door opening, in that in this floor area laterally near one of the side frames and insofar as a projection protruding above the floor is provided in the side end area of the pressure-sensitive protective strip design, that can be connected to the frame and thus has its correct spatial orientation from the start.
  • the sectional door 1 according to FIG. 1 is of a conventional design, the door leaf 2 runs over rollers attached to the side of the door leaf panels in guide rails 3, which have an approximately vertical section, in which the rollers of the door leaf 2 are in its closed position and which are arched in a horizontal one Skip the section in which the rollers are when the door leaf 2 is completely moved into its open position.
  • To balance the weight of the door leaf 2 serve in a known manner torsion springs 4 which are arranged on a shaft above the door opening and hold the door leaf via cable drums and ropes.
  • a drive can also be provided in the area of this shaft; such a drive can also be designed as a trailing drive in the area near the ceiling, working parallel to the horizontal sections of the guides 3.
  • An accident protection strip 5 is provided on the bottom edge 2 'of the door leaf 2 pointing in the closing direction, which extends in a known manner over the width of the door leaf and is thus able to detect obstacles practically across the entire width of the door opening .
  • Such an accident protection strip shown shortened in FIG. 2, can be designed as a rubber profile and thus have a continuous cavity 6 which is provided within a tubular profile wall 7. This cavity is closed on both ends by end plugs, one of which, at the front in FIG. 2, is penetrated by a hollow line 12 in the form of a hose.
  • a small-caliber opening can be provided, through which the cavity is ventilated to the surroundings.
  • the cavity 6 or its tubular profile wall 7 is integrally received between two laterally extending cheeks 9, which in the upper end region, ie. H. the one with which the bar is fastened to the lower edge 2 'of the door leaf is provided with clip-shaped fixing formations 10 which are used in a known manner in corresponding recesses in the lower door edge region.
  • the cheeks 9 are formed in lips 11 at their end side regions which point downward in the closed position.
  • the tubular profile wall 7 deforms, among other things, and thus reduces the cavity 6.
  • the associated air displacement manifests itself in a pressurization of the pressure switch, denoted overall by 13, via the hollow line 12.
  • the aforementioned ventilation opening is so small-caliber that the air outlet taking place there cannot impair the pressurization of the pressure switch.
  • a pressure switch is opened schematically or laterally reproduced, in which a membrane 14 is held stretched, which divides the interior of the pressure switch housing 20 into two pressure chambers 15 and 16 or seals against each other by the membrane pressure-tight.
  • the hollow line 12 is introduced into the upper pressure chamber 15, while the lower pressure chamber 16 is ventilated via an opening 17 opening into the open.
  • Plugs 18 are provided in the mutually opposite housing walls 21, which create further connection options or enable the adjustment of further ventilation openings and the like.
  • a contact carrier 19 is inserted into the housing wall 21 delimiting the pressure chamber 15 via a thread 22, so that the distance to the membrane can be adjusted by rotating the contact carrier, for example towards the middle region of the membrane 14 and adjustable perpendicular to the membrane plane.
  • At least one electrical contact pole is arranged on a surface of the contact carrier 19 facing the membrane 14, which contacts a mating contact pole located on the membrane and thus closes a conductor loop 23 when the pressure in the pressure chambers 15 and 16 is the same .
  • This normally closed contact can, of course, also be designed differently, for example engaging the membrane with an actuating pin and, moreover, being arranged completely on or in the contact carrier.
  • a projection 27 is displaced towards a side frame in the bottom region of the door opening provided that acts correspondingly exactly on the associated lateral end region of the cavity 6 when the door leaf is closed.
  • the projection 27 rises slightly above the bottom surface in this area and is connected via a bracket 28 to the lower end area 29 of one of the side frames 30, which in FIG. 1 are located behind the vertical sections of the guides 3.
  • FIG. 3 shows a circuit diagram for differentiating the signals emitted by the accident protection strip, firstly when hitting an obstacle and secondly when hitting the ground or the projection 27.
  • Both the output circuit of the pressure switch 13 - normally closed contact DW - and the output circuit of the limit switch - Normally closed contact ZU - are designed as a monitoring-safe closed circuit.
  • the output of the pressure switch is fed to an input S I of an evaluation circuit, not shown, which, via this input, receives an opening of the normally closed contact DW symbolizing the pressure switch as an alarm signal and triggers the usual switching off or switching over of the drive unit, if not at the same time at the second input S 2 of the evaluation circuit also occurs a signal.
  • the output of the limit switch - normally closed contact - is fed to the input of a timer 24, the output of which is fed to the one input of a comparator circuit 25.
  • the output signal of the pressure switch - normally closed contact DW - is fed to a second input of the comparator circuit 25 in parallel with S I.
  • the comparator circuit is designed as an AND gate, ie a signal occurs at its output when signals are present at its two inputs at the same time.
  • the output of the comparator circuit 25 is fed to the second input S 2 of the evaluation circuit via a signal conditioning circuit 26.
  • the signal which occurs when the limit switch is actuated by opening the switch CLOSED is subject to an expansion by the timer switch 24, that is to say it occurs as soon as it occurs of the limit switch signal in the closed position of the door leaf a time during which a signal is present at the associated input of the comparator circuit 25.
  • This timing can be generous Limits must be dimensioned and is preferably adjustable because the movement of the door leaf - especially when deliberately delayed entry into the closed position - can vary.
  • the circuit should also be adaptable to different types of doors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Fuses (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

1. Elastically deformable accident prevention strip for mounting on the edge of a driven door leaf facing in the direction of closing, more particularly a lifting door, a single-leaf overhead door, a rolling door, a sectional overhead door or the like, having a pressure-signal transducer which, when it meets resistance in the course of the closing of the door or on reaching the closed position of the door leaf, emits a signal which is passed to means for switching off or reversing the movement of the door leaf drive assembly, and having a limit switch for switching off the door leaf drive assembly, said switch being activated when the door leaf reaches the closed position, characterised in that the output signal from the limit switch (CLOSED) and that from the pressure-signal transducer (1, 13) are passed to a comparator circuit (25), the output signal of which is passed to an evaluating circuit to serve as a criterion for monitoring the operation of the accident prevention strip (5).

Description

Die Erfindung bezieht sich auf eine Unfallschutzleiste mit den Merkmalen des Oberbegriffes des Anspruches 1.The invention relates to an accident protection strip with the features of the preamble of claim 1.

Unfallschutzleisten der hier in Frage stehenden Art gibt es in verschiedenen Ausführungen, so beispielsweise als elektrische Kontaktschwelle oder aber insbesondere in Form eines in der Leiste vorgesehenen Hohlraumes, dessen Volumen sich bei Auftreffen auf ein Hindernis verringert, so daß ein in diesem Hohlraum eingeschlossenes Medium, insbesondere gasförmig und in der Regel Luft, verdrängt wird, was zur Auslösung eines Druckschalters ausgenutzt wird. Die Kontaktschwelle bzw. der Hohlraum erstreckt sich praktisch über die Länge der Leiste hinweg, die ihrerseits über die Gesamtlänge der in Schließrichtung weisenden Kante des Torblattes hinweggeführt angeordnet ist. Trifft das Torblatt im Zuge der Schließbewegung mit seiner in Schließrichtung weisenden Kante und damit der Unfallschutzleiste auf ein Hindernis, so wird ein Signal abgegeben das zur Abschaltung bzw. Umschaltung der Torblattbewegung ausgenutzt wird. Dies und die dafür benötigte Einrichtungen sind bekannt (z. B. DE-A-1 584 069).Accident protection strips of the type in question are available in various versions, for example as an electrical contact threshold or in particular in the form of a cavity provided in the strip, the volume of which decreases when hitting an obstacle, so that a medium enclosed in this cavity, in particular gaseous and usually air, is displaced, which is used to trigger a pressure switch. The contact threshold or cavity extends practically over the length of the bar, which in turn is arranged to be guided over the entire length of the edge of the door leaf pointing in the closing direction. If the door leaf encounters an obstacle in the course of the closing movement with its edge pointing in the closing direction and thus the accident protection strip, a signal is emitted which is used to switch off or switch over the door leaf movement. This and the devices required for it are known (e.g. DE-A-1 584 069).

Bei solchen Unfallschutzleisten besteht aus Sicherheitsgründen das Bedürfnis, diese auf ihre Funktionsfähigkeit bzw. Einsatzbereitschaft hin zu überwachen, insbesondere dann, wenn das bei Auftreffen auf ein Hindernis abgegebene Signal aktiver Natur ist, eine dauernde Selbstüberwachung, wie beispielsweise bei einem Ruhestromkreis, nicht gegeben ist. Dies ist insbesondere auch bei dem vorerwähnten, mit einem volumenveränderlichen Hohlraum arbeitenden Unfallschutzleisten der Fall, wenn diese in besonders einfacher Ausgestaltung mit einem Hohlraum arbeiten, der über eine Öffnung geringen Querschnittes dauerbelüftet ist.In the case of such accident protection strips, there is a need for safety reasons to monitor them for their functionality or readiness for use, in particular if the signal emitted when an obstacle is encountered is of an active nature, and continuous self-monitoring, for example in the case of a closed circuit, is not given. This is also the case in particular in the case of the aforementioned accident protection strips, which work with a variable-volume cavity, if they work in a particularly simple embodiment with a cavity which is permanently ventilated via an opening of small cross-section.

Der Erfindung liegt die Aufgabe zugrunde , eine Unfallschutzleiste der eingangs genannten Art mit möglichst einfach ausgebildeter Funktionsüberwachung zur Verfügung zu stellen.The object of the invention is to provide an accident protection strip of the type mentioned at the outset with function monitoring that is as simple as possible.

Ausgehend von einer Unfallschutzleiste mit den Merkmalen des Oberbegriffes des Ansprüches 1 wird diese Aufgabe erfindungsgemäß durch dessen kennzeichnende Merkmale gelöst.Starting from an accident protection strip with the features of the preamble of claim 1, this object is achieved according to the invention by its characteristic features.

Eine Unfall-Leiste der in Frage stehenden Art löst bestimmungsgemäß ein Signal aus, wenn die in Schließrichtung weisende Kante des Torblattes auf ein Hindernis trifft. Ein solches "Hindernis" kann aber auch der Boden unterhalb der zu schliessenden Toröffnung darstellen, wenn das Torblatt entsprechend weit in die Schließlage verfahren wird. Dies wird erfindungsgemäß dazu ausgenutzt, das dabei auftretende "Alarm"-Signal nunmehr als FunktionsüberwachungsSignal auszunutzen, und zwar dadurch, daß man einen bei Erreichen der Schließstellung des Torblattes betätigten Endschalter als Unterscheidungskriterium zwischen echtem Alarmsignal und Funktionsüberwachungssignal mit ausnutzt. Dadurch erhält man eine besonders einfache Funktionssicherheitsüberwachung, die durch die Überwachung des auch bei Alarm abgegebenen Signals selbst besonders zuverlässig ist und einmal pro Torblatt-Bewegungs-Zyklus, d. h. nach jedem Öfftungs-und anschließendem Schließvorgang des Torblattes, stattfindet, was als völlig ausreichend angesehen wird.As intended, an accident bar of the type in question triggers a signal when the edge of the door leaf pointing in the closing direction meets an obstacle. Such an "obstacle" can also be the floor below the door opening to be closed if the door leaf is moved correspondingly far into the closed position. This is used according to the invention to utilize the "alarm" signal that occurs now as a function monitoring signal, namely by using a limit switch actuated when the door leaf reaches the closed position as a distinguishing criterion between a real alarm signal and a function monitoring signal. This gives a particularly simple functional safety monitoring, which is particularly reliable by monitoring the signal emitted even in the event of an alarm, and once per door leaf movement cycle, ie. H. after each opening and subsequent closing operation of the door leaf, which is considered to be completely sufficient.

Ist die Unfallschutzleiste mit einer elektrischen Schwelle versehen, die bei Zusammendrücken einen Stromkreis schließt oder dessen Widerstand verändert, so ist an den Ausgängen dieser Leiste unmittelbar das einem Zusammendrücken der Leiste entsprechende Ausgangssignal als elektrisches Signal vorhanden. Bei Ausbildung der Unfallschutzleiste mit einem Hohlraum, insbesondere mit Luft gefüllt bzw. zur Umgebung hin belüftet, so tritt bei Druckbeanspruchung und damit Verringerung des Hohlraumvolumens ein Druckwellensignal auf, das einem Druckschalter zugeführt wird, der dieses Drucksignal in ein elektrisches Signal umformt. In beiden Fällen werden diese Signale bereits zur bestimmungsgemäßen Alarmauslösung über elektrische Leitungen, die die Bewegung des Torblattes nicht behindern, an eine Stelle außerhalb des Torblattes geführt, in der die Auswerteeinrichtung für diese Signale angeordnet ist. Da diese Signale erfindungsgemäß auch für die Funktionsüberwachung ausgenutzt werden, bedarf es demnach keiner Änderung an der Unfallschutzleiste bzw. dem Druckschalter selbst, es ist lediglich erforderlich, im Rahmen der ortsfest angeordneten Auswerteschaltung das von der Unfallschutzleiste stammende Signal bei Schließen des Torblattes mit demjenigen des bei Schließen des Torblattes betätigten Endschalters derart zu verkoppeln, daß ein Ausgangssignal für den Fall gewonnen wird, daß ein Signal von der Unfallschutzschiene in Schließstellung des Torblattes bzw. bei deren Erreichen auftritt.If the accident protection strip is provided with an electrical threshold that closes a circuit when it is compressed or changes its resistance, the output signal corresponding to a compression of the strip is immediately available as an electrical signal at the outputs of this strip. When the accident protection strip is designed with a cavity, in particular filled with air or ventilated to the surroundings, a pressure wave signal occurs when pressure is applied and the cavity volume is reduced, which is fed to a pressure switch which converts this pressure signal into an electrical signal. In both cases, these signals are already routed via an electrical line, which does not impede the movement of the door leaf, to a location outside the door leaf, in which the evaluation device for these signals is arranged, for the intended triggering of the alarm. Since these signals are also used according to the invention for function monitoring, there is therefore no need to change the accident protection strip or the pressure switch itself, it is only necessary, as part of the stationary evaluation circuit, for the signal coming from the accident protection strip when the door leaf is closed to that of the door leaf Closing the door leaf actuated limit switch so that an output signal is obtained in the event that a signal from the accident protection rail occurs in the closed position of the door leaf or when it is reached.

Zu diesem Zwecke eignet sich eine einfach aufgebaute Vergleicherschaltung, an deren einen Eingang das Ausgangssignal der Unfallschutzleiste bzw. des Druckschalters und an deren anderen Eingang das Ausgangssignal des Endschalters angelegt wird. Um eine zu genaue Einstellung zu vermeiden bzw. hinsichtlich der Geschwindigkeit der Torblattbewegung anpassungsfähig zu sein, kann in bevorzugter Ausführung zwischen dem Ausgang des Endschalters und dem zugehörigen Eingang der Vergleicherschaltung ein Zeitschaltglied eingeschaltet sein, das ein mit Betätigen des Endschalters ausgelöstes Signal für eine bestimmte Zeitdauer aufrecht erhält, während der ein eintreffendes Signal der Unfallschutzleiste als Überwachungssignal gekennzeichnet ausgewertet wird. Tritt ein solches Signal nicht auf, dann meldet die Auswerteschaltung mangelnde Funktionsbereitschaft bzw. Fehler im Bereich der Unfallschutzleiste bis zum Eingang der Vergleicherschaltung. Sollte bei Erreichen der Schließstellung des Torblattes ein Signal der Unfallschutzleiste empfangen werden, bevor das Endschalter-Schließ-Signal auftritt, so wird dieses Leistensignal als Alarmsignal für das Stillsetzen bzw. Umkehren der Torblattbewegung ausgenutzt. In jedem Falle wird demnach ein Ausbleiben des Leistensignales bei Schließen des Torblattes als Fehleranzeige erkannt.A simply constructed comparator circuit is suitable for this purpose, at one input of which the output signal of the accident protection strip or of the pressure switch and at the other input of which the output signal of the limit switch is applied. In order to avoid a too precise setting or to be adaptable with regard to the speed of the door leaf movement, in a preferred embodiment, a timer can be switched on between the output of the limit switch and the associated input of the comparator circuit, which timer signal is triggered for a specific period of time when the limit switch is actuated is maintained during which an incoming signal from the accident protection strip is evaluated as a monitoring signal. If such a signal does not occur, then the evaluation circuit reports a lack of operational readiness or errors in the area of Accident protection strip up to the input of the comparator circuit. If a signal from the accident protection strip is received when the door leaf reaches the closed position before the limit switch closing signal occurs, this strip signal is used as an alarm signal for stopping or reversing the door leaf movement. In any case, a failure of the bar signal when the door leaf closes is recognized as an error display.

Es ist grundsätzlich möglich, die Signale der Leiste durchgehend als sogenannte aktive Signale zur Verfügung zu stellen, dann werden die elektrischen Schaltkreise aus Sicherheitsgründen bevorzugt redundant ausgeführt. Beispielsweise zwei parallel arbeitende Kreise werden jeweils für sich überwacht, und bereits bei Ausfall eines Kreises wird Alarm gegeben. Vorzugsweise wird das Ruhestromkreis-Prinzip eingesetzt, weil damit insoweit eine Dauerüberwachung der Schalter und Leitungen auf einfache Weise ermöglicht wird.In principle, it is possible to provide the bar signals continuously as so-called active signals, in which case the electrical circuits are preferably made redundant for safety reasons. For example, two circles working in parallel are monitored individually, and an alarm is given if a circuit fails. The closed-circuit principle is preferably used because it enables continuous monitoring of the switches and lines in a simple manner.

Bislang bestand kein Bedürfnis danach, bei Eintreffen des Torblattes in den Schließzustand ein Signal der Unfallschutzleiste zu erzeugen. Dies nunmehr erfindungsgemäß vorgesehene und ausgewertete Signal wird in weiterhin bevorzugter Ausführung und insoweit unabhängig von der Bodenbeschaffenheit unterhalb der Toröffnung dadurch sichergestellt, daß in diesen Bodenbereich seitlich nahe einer der Seitenzargen und insoweit im seitlichen Endbereich der druckempfindlichen Schutzleistenausbildung ein über den Boden vorstehender Vorsprung vorgesehen wird, der mit dem Zargenrahmen verbunden sein kann und somit von vorneherein seine richtige räumliche Orientierung aufweist.Until now there was no need to generate a signal from the accident protection bar when the door leaf arrives in the closed state. This signal, which is now provided and evaluated according to the invention, is ensured in a further preferred embodiment and insofar irrespective of the nature of the floor below the door opening, in that in this floor area laterally near one of the side frames and insofar as a projection protruding above the floor is provided in the side end area of the pressure-sensitive protective strip design, that can be connected to the frame and thus has its correct spatial orientation from the start.

Weitere bevorzugte Ausführungen der Erfindung ergeben sich aus den Unteransprüchen in Zusammenhang mit dem in der Zeichnung wiedergegebenen Ausführungsbeispiel, auf das besonders Bezug genommen wird und dessen nachfolgende Beschreibung die Erfindung näher erläutert.Further preferred embodiments of the invention result from the subclaims in connection with the embodiment shown in the drawing, to which particular reference is made and the following description of which explains the invention in more detail.

Es zeigen

  • Figur 1 eine perspektivische Innenansicht auf ein geschlossenes Deckengliedertor als Anwendungsbeispiel für eine Unfallschutzleiste;
  • Figur 2 eine verkürzt wiedergegebene perspektivische Ansicht einer pneumatisch arbeitenden Unfallschutzleiste mit schematisch wiedergegebenem Druckschalter;
  • Figur 3 eine Schaltskizze als Beispiel der Unterscheidung zwischen Alarm- und Überwachungssignal.
Show it
  • Figure 1 is a perspective interior view of a closed sectional door as an application example for an accident protection strip;
  • FIG. 2 shows a shortened perspective view of a pneumatically operating accident protection strip with a schematically represented pressure switch;
  • Figure 3 is a circuit diagram as an example of the distinction between alarm and monitoring signal.

Das Deckengliedertor 1 gemäß Figur 1 ist üblicher Bauart, das Torblatt 2 läuft über seitlich an den Torblattpanelen angebrachten Rollen in Führungsschienen 3, die einen etwa vertikalen Abschnitt aufweisen, in denen sich die Rollen des Torblattes 2 in dessen Schließstellung befinden und die bogenförmig in einen horizontalen Abschnitt übergehen, in welchem sich die Rollen befinden, wenn das Torblatt 2 vollständig in seine Öffnungsstellung überführt ist. Dem Gewichtsausgleich des Torblattes 2 dienen in bekannter Weise Torsionsfedern 4, die an einer Welle oberhalb der Toröffnung angeordnet sind und über Seiltrommeln und Seile das Torblatt halten. Im Bereich dieser Welle kann auch ein Antrieb vorgesehen sein, ein solcher kann auch als Schleppantrieb ausgebildet im deckennahen Bereich parallel zu den horizontalen Abschnitten der Führungen 3 arbeitend vorgesehen werden.The sectional door 1 according to FIG. 1 is of a conventional design, the door leaf 2 runs over rollers attached to the side of the door leaf panels in guide rails 3, which have an approximately vertical section, in which the rollers of the door leaf 2 are in its closed position and which are arched in a horizontal one Skip the section in which the rollers are when the door leaf 2 is completely moved into its open position. To balance the weight of the door leaf 2 serve in a known manner torsion springs 4 which are arranged on a shaft above the door opening and hold the door leaf via cable drums and ropes. A drive can also be provided in the area of this shaft; such a drive can also be designed as a trailing drive in the area near the ceiling, working parallel to the horizontal sections of the guides 3.

An der in Schließrichtung weisenden, in Figur 1 untersten Pannelekante 2' des Torblattes 2 ist eine Unfallschutzleiste 5 vorgesehen, die sich in bekannter Weise über die Breite des Torblattes hinweg erstreckt und somit in der Lage ist, Hindernisse praktisch über die gesamte Toröffnungsbreite hinweg zu erfassen. Eine solche in Figur 2 verkürzt wiedergegebene Unfallschutzleiste kann als Gummi-Profil ausgebildet sein und damit einen durchgehenden Hohlraum 6 aufweisen, der innerhalb einer Rohrprofilwandung 7 vorgesehen ist. An beiden Stirnseiten ist dieser Hohlraum durch Abschlußpfropfen verschlossen, deren einer, in Figur 2 vordere, von einer Hohlleitung 12 in Form eines Schlauches durchgriffen ist. Neben diesem Durchgriff oder im Bereich des anderen Abschlußpfropfens 8 kann eine kleinkalibrige Öffnung vorgesehen sein, über die der Hohlraum zur Umgebung hin belüftet ist.An accident protection strip 5 is provided on the bottom edge 2 'of the door leaf 2 pointing in the closing direction, which extends in a known manner over the width of the door leaf and is thus able to detect obstacles practically across the entire width of the door opening . Such an accident protection strip, shown shortened in FIG. 2, can be designed as a rubber profile and thus have a continuous cavity 6 which is provided within a tubular profile wall 7. This cavity is closed on both ends by end plugs, one of which, at the front in FIG. 2, is penetrated by a hollow line 12 in the form of a hose. In addition to this passage or in the area of the other plug 8, a small-caliber opening can be provided, through which the cavity is ventilated to the surroundings.

Der Hohlraum 6 bzw. dessen Rohrprofilwandung 7 ist einstückig zwischen zwei seitlich verlaufenden Wangen 9 aufgenommen, die im oberen Abschlußbereich, d. h. demjenigen, mit dem die Leiste an der Unterkante 2' des Torblattes befestigt wird, mit klippförmigen Festlegeausbildungen 10 versehen sind, die in bekannter Weise in entsprechende Ausnehmungen im unteren Torkantenbereich eingesetzt werden. An ihren in der Schließstellung nach unten weisenden Endseitenbereichen sind die Wangen 9 in Lippen 11 auslaufend ausgebildet.The cavity 6 or its tubular profile wall 7 is integrally received between two laterally extending cheeks 9, which in the upper end region, ie. H. the one with which the bar is fastened to the lower edge 2 'of the door leaf is provided with clip-shaped fixing formations 10 which are used in a known manner in corresponding recesses in the lower door edge region. The cheeks 9 are formed in lips 11 at their end side regions which point downward in the closed position.

Trifft das Torblatt im Zuge der Schließbewegung mit der Unfallschutzleiste auf ein Hindernis auf oder wird die Schutzleiste bei Einfahren in die Schließstellung auf den Boden unterhalb der Toröffnung gedrückt, so verformt sich unter anderem die Rohrprofilwandung 7 und verringert damit den Hohlraum 6. Die damit verbundene Luftverdrängung äußert sich in einer Druckbeaufschlagung des insgesamt mit 13 bezeichneten Druckschalters über die Hohlleitung 12. Die vorerwähnte Belüftungsöffnung ist so kleinkalibrig, daß der dort stattfindende Luftaustritt die Druckbeaufschlagung des Druckschalters nicht beeinträchtigen kann.If the door leaf encounters an obstacle during the closing movement with the accident protection strip or if the protection strip is pressed onto the floor below the door opening when entering the closed position, the tubular profile wall 7 deforms, among other things, and thus reduces the cavity 6. The associated air displacement manifests itself in a pressurization of the pressure switch, denoted overall by 13, via the hollow line 12. The aforementioned ventilation opening is so small-caliber that the air outlet taking place there cannot impair the pressurization of the pressure switch.

In dem in Figur 2 dargestellten Beispiel ist ein Druckschalter schematisch bzw. seitlich geöffnet wiedergegeben, in welchem eine Membrane 14 aufgespannt gehalten ist, die den Innenraum des Druckschaltergehäuses 20 in zwei Druckräume 15 und 16 unterteilt bzw. durch die Membrane druckdicht gegeneinander abschließt. In dem oberen Druckraum 15 ist die Hohlleitung 12 eingeführt, während der untere Druckraum 16 über eine ins Freie mündende Öffnung 17 belüftet ist. In den einander gegenüberliegenden Gehäusewandungen 21 sind Stopfen 18 vorgesehen, die weitere Anschlußmöglichkeiten schaffen bzw. die Einstellung weiterer Belüftungsöffnungen und dgl. ermöglichen. Etwa auf den Mittelbereich der Membrane 14 zu gerichtet und senkrecht zur Membranebene verstellbar ist ein Kontaktträger 19 in die den Druckraum 15 begrenzende Gehäusewandung 21 über ein Gewinde 22 eingesetzt, so daß durch Verdrehen des Kontaktträgers dessen Abstand zu der Membrane eingestellt werden kann. In nicht näher dargestellter Weise ist an einer der Membrane 14 zugewandten Fläche des Kontaktträgers 19 wenigstens ein elektrischer Kontaktpol angeordnet, der mit einem auf der Membrane befindlichen Gegenkontaktpol in Verbindung tritt und damit eine Leiterschleife 23 schließt, wenn in den Druckkammern 15 und 16 gleicher Druck herrscht. Dieser Ruhekontakt kann selbstverständlich auch anders ausgebildet sein, beispielsweise mit einem Betätigungsstift an der Membrane angreifen und im übrigen vollständig am oder im Kontaktträger angeordnet sein.In the example shown in Figure 2, a pressure switch is opened schematically or laterally reproduced, in which a membrane 14 is held stretched, which divides the interior of the pressure switch housing 20 into two pressure chambers 15 and 16 or seals against each other by the membrane pressure-tight. The hollow line 12 is introduced into the upper pressure chamber 15, while the lower pressure chamber 16 is ventilated via an opening 17 opening into the open. Plugs 18 are provided in the mutually opposite housing walls 21, which create further connection options or enable the adjustment of further ventilation openings and the like. A contact carrier 19 is inserted into the housing wall 21 delimiting the pressure chamber 15 via a thread 22, so that the distance to the membrane can be adjusted by rotating the contact carrier, for example towards the middle region of the membrane 14 and adjustable perpendicular to the membrane plane. In a manner not shown, at least one electrical contact pole is arranged on a surface of the contact carrier 19 facing the membrane 14, which contacts a mating contact pole located on the membrane and thus closes a conductor loop 23 when the pressure in the pressure chambers 15 and 16 is the same . This normally closed contact can, of course, also be designed differently, for example engaging the membrane with an actuating pin and, moreover, being arranged completely on or in the contact carrier.

Trifft aufgrund eines Zusammendrückens der Rohrprofilwandung 7 der Leiste 5 eine Luftverdrängung in dem Hohlraum 6 auf, so wird der Druckraum 15 des Druckschalters 13 druckbeaufschlagt, und die Membrane 14 wölbt sich in den Druckraum 16 vor, dessen dadurch bedingte Volumenverringerung zu einem Luftaustritt aus der Öffnung 17 führt. Durch diese Verwölbung der Membrane 14 wird der Ruhekontakt des Kontaktträgers 19 geöffnet. Das rechts neben dem Druckschalter 13 wiedergegebene Schaltersymbol DW verkörpert den durch den Kontaktträger und die Membrane gebildeten Ruhekontakt. Dieser Ruhekontakt DW wird also immer dann geöffnet, wenn eine Verformung der Unfallschutzleiste 5 im Sinne einer Verringerung des Volumens des Hohlraumes 6 auftritt, d. h. im Alarmfalle bei Auftreffen eines im Schließweg der Kante 2' des Torblattes 2 befindlichen Hindernisses im Alarmfall und bei Auftreffen der Leiste 15 auf dem Boden unterhalb der Toröffnung.If an air displacement occurs in the cavity 6 due to a compression of the tubular profile wall 7 of the strip 5, then the pressure chamber 15 of the pressure switch 13 is pressurized, and the diaphragm 14 bulges into the pressure chamber 16, the volume reduction thereof resulting in an air outlet from the opening 17 leads. This curvature of the membrane 14 opens the normally closed contact of the contact carrier 19. The switch symbol DW shown to the right of the pressure switch 13 embodies the normally closed contact formed by the contact carrier and the membrane. This normally closed contact DW is therefore always opened when there is a deformation of the accident protection strip 5 in the sense of a reduction in the volume of the cavity 6, ie. H. in the event of an alarm when an obstacle in the closing path of the edge 2 'of the door leaf 2 is encountered in the event of an alarm and when the bar 15 hits the floor below the door opening.

Um eine sichere Auslösung eines Signales bzw. eine konkrete Verformung der Rohrprofilwandung 7 zu erreichen, die unabhängig von einer Beeinträchtigung durch Bodenverschmutzungen und dergleichen ist, wird im vorliegenden Beispiel nach den Figuren 1 und 2 im Bodenbereich der Toröffnung zu einer Seitenzarge hin versetzt ein Vorsprung 27 vorgesehen, der entsprechend exakt auf den zugehörigen seitlichen Endbereich des Hohlraumes 6 bei Schließen des Torblattes einwirkt. Der Vorsprung 27 erhebt sich leicht über die Bodenfläche in diesem Bereich und ist über einen Ausleger 28 mit dem unteren Endbereich 29 einer der Seitenzargen 30 verbunden, die in Figur 1 hinter den vertikalen Abschnitten der Führungen 3 gelegen sind. Dies ist lediglich ein Beispiel für eine Vielzahl von Anordnungs- und Halterungsmöglichkeiten des Vorsprunges 27, der seinerseits von der Formgebung her vielgestaltig ausbildbar ist und lediglich der Aufgabe genügen muß, die Rohrprofilwandung 7 entsprechend zu verformen, wenn das Torblatt in die Schließstellung gelangt. Wie das Antriebsaggregat, so ist auch ein zu dessen Steuerung dienender Endschalter nicht dargestellt, der so angeordnet ist, daß er betätigt wird, wenn das Torblatt 2 in seine Schließstellung gelangt. Diese Anordnungen sind bekannt.In order to achieve a reliable triggering of a signal or a concrete deformation of the tubular profile wall 7, which is independent of any impairment due to soil contamination and the like, in the present example according to FIGS. 1 and 2, a projection 27 is displaced towards a side frame in the bottom region of the door opening provided that acts correspondingly exactly on the associated lateral end region of the cavity 6 when the door leaf is closed. The projection 27 rises slightly above the bottom surface in this area and is connected via a bracket 28 to the lower end area 29 of one of the side frames 30, which in FIG. 1 are located behind the vertical sections of the guides 3. This is only an example of a variety of arrangement and mounting options of the projection 27, which in turn can be designed in a variety of shapes and only has to fulfill the task of deforming the tubular profile wall 7 accordingly when the door leaf comes into the closed position. Like the drive unit, a limit switch serving to control it is also not shown, which is arranged so that it is actuated when the door leaf 2 comes into its closed position. These arrangements are known.

Figur 3 zeigt ein Schaltschema zur Unterscheidung der von der Unfallschutzleiste abgegebenen Signale, einmal bei Auftreffen auf ein Hindernis und zum anderen bei Auftreffen auf den Boden bzw. den Vorsprung 27. Sowohl der Ausgangsschaltkreis des Druckschalters 13 - Ruhekontakt DW - als auch der Ausgangsschaltkreis des Endschalters - Ruhekontakt ZU - sind als überwachungssicherer Ruhestromkreis ausgebildet. Der Ausgang des Druckschalters ist dabei einmal einem Eingang SI einer nicht dargestellten Auswerteschaltung zugeleitet, die über diesen Eingang ein Öffnen des den Druckschalter symbolisierenden Ruhekontaktes DW als Alarmsignal aufnimmt und das übliche Ab- oder Umschalten des Antriebsggregates auslöst, falls nicht zugleich an dem zweiten Eingang S2 der Auswerteschaltung ebenfalls ein Signal auftritt. Der Ausgang des Endschalters - Ruhekontakt ZU - ist dem Eingang eines Zeitschaltgliedes 24 zugeführt, dessen Ausgang dem einen Eingang einer Vergleicherschaltung 25 zugeleitet wird. Einem zweiten Eingang der Vergleicherschaltung 25 ist parallel zu SI das Ausgangssignal des Druckschalters - Ruhekontakt DW - zugeführt. Die Vergleicherschaltung ist in einfachster Ausgestaltung als UND-Gatter ausgebildet, d. h. an ihrem Ausgang tritt ein Signal auf, wenn an ihren beiden Eingängen gleichzeitig Signale anstehen. Der Ausgang der Vergleicherschaltung 25 ist über eine Signalaufbereitungsschaltung 26 dem zweiten Eingang S2 der Auswerteschaltung zugeführt.FIG. 3 shows a circuit diagram for differentiating the signals emitted by the accident protection strip, firstly when hitting an obstacle and secondly when hitting the ground or the projection 27. Both the output circuit of the pressure switch 13 - normally closed contact DW - and the output circuit of the limit switch - Normally closed contact ZU - are designed as a monitoring-safe closed circuit. The output of the pressure switch is fed to an input S I of an evaluation circuit, not shown, which, via this input, receives an opening of the normally closed contact DW symbolizing the pressure switch as an alarm signal and triggers the usual switching off or switching over of the drive unit, if not at the same time at the second input S 2 of the evaluation circuit also occurs a signal. The output of the limit switch - normally closed contact - is fed to the input of a timer 24, the output of which is fed to the one input of a comparator circuit 25. The output signal of the pressure switch - normally closed contact DW - is fed to a second input of the comparator circuit 25 in parallel with S I. In its simplest form, the comparator circuit is designed as an AND gate, ie a signal occurs at its output when signals are present at its two inputs at the same time. The output of the comparator circuit 25 is fed to the second input S 2 of the evaluation circuit via a signal conditioning circuit 26.

Um keine besonderen zeitlichen Anforderungen stellen zu müssen, was das Auftreten der Ausgangssignale des Druckschalters einerseits und gleichzeitig des Endschalters andererseits betrifft, ist das bei Betätigen des Endschalters durch Öffnen des Schalters ZU auftretende Signal durch das Zeitschaltglied 24 einer Dehnung unterworfen, d. h. es wird ab Auftreten des Endschaltersignales in der Schließstellung des Torblattes eine Zeit vorgegeben, während der an dem zugehörigen Eingang der Vergleicherschaltung 25 ein Signal ansteht. Diese Zeitvorgabe kann in großzügigen Grenzen bemessen sein und ist vorzugsweise einstellbar, weil die Bewegung des Torblattes - insbesondere bei bewußtem verzögerten Einlauf in die Schließstellung - variieren kann. Auch soll die Schaltung an verschiedene Tortypen anpaßbar sein. Tritt während dieser Zeitvorgabe am Ausgang des Druckschalters 13 - Öffnen des Ruhekontaktes DW - ein Signal auf, so erscheint am Ausgang der Vergleicherschaltung bzw. der Signalaufbereitungsschaltung und damit am Eingang S2 der Auswerteschaltung ein Signal auf, das synchron mit einem bei S1 durch Öffnen von DW erscheint. Dies ist das Kriterium für die Auswerteschaltung, daß ein die Funktionsbereitschaft der Unfallschutzleiste anzeigendes Signal positiv vorhanden ist. Tritt dagegen innerhalb der Zeitvorgabe des Schaltzeitgliedes 24 - ein entsprechendes Signal empfängt die Auswerteschaltung ebenfalls - kein Signal an S2 auf, so bedeutet dies, daß im Bereich der Unfallschutzleiste und/oder des Druckschalters ein Fehler vorliegt bzw. die Unfallschutzleiste nicht funktionsfähig ist. Öffnet der Schalter DW, ohne daß der Schalter ZU zuvor im Zuge der Schließbewegung geöffnet hat, so tritt nur an S1 der Auswerteschaltung ein Signal auf, das als Alarmsignal verarbeitet wird. Das vorgeschilderte konkrete Ausführungsbeispiel der Signalverarbeitung gemäß Figur 3 läßt sich mit den dem Elektroniker zur Verfügung stehenden Mitteln auf mancherlei Weise modifizieren.In order not to have to make any particular time demands regarding the occurrence of the output signals of the pressure switch on the one hand and at the same time of the limit switch on the other hand, the signal which occurs when the limit switch is actuated by opening the switch CLOSED is subject to an expansion by the timer switch 24, that is to say it occurs as soon as it occurs of the limit switch signal in the closed position of the door leaf a time during which a signal is present at the associated input of the comparator circuit 25. This timing can be generous Limits must be dimensioned and is preferably adjustable because the movement of the door leaf - especially when deliberately delayed entry into the closed position - can vary. The circuit should also be adaptable to different types of doors. If a signal occurs at the output of the pressure switch 13 - opening the normally closed contact DW during this time, a signal appears at the output of the comparator circuit or the signal conditioning circuit and thus at the input S 2 of the evaluation circuit, which is synchronized with one at S 1 by opening from DW appears. This is the criterion for the evaluation circuit that a signal indicating the operational readiness of the accident protection strip is present positively. If, on the other hand, there is no signal at S 2 within the time specified by the switching timer 24 - a corresponding signal is also received by the evaluation circuit - this means that there is an error in the area of the accident protection strip and / or the pressure switch or the accident protection strip is not functional. If the DW switch opens without the ZU switch opening beforehand in the course of the closing movement, a signal occurs only at S 1 of the evaluation circuit, which signal is processed as an alarm signal. The above-described concrete exemplary embodiment of the signal processing according to FIG. 3 can be modified in many ways with the means available to the electronics engineer.

Claims (10)

1. Elastically deformable accident prevention strip for mounting on the edge of a driven door leaf facing in the direction of closing, more particularly a lifting door, a single-leaf overhead door, a rolling door, a sectional overhead door or the like, having a pressure-signal transducer which, when it meets resistance in the course of the closing of the door or on reaching the closed position of the door leaf, emits a signal which is passed to means for switching off or reversing the movement of the door leaf drive assembly, and having a limit switch for switching off the door leaf drive assembly, said switch being activated when the door leaf reaches the closed position, characterised in that the output signal from the limit switch (CLOSED) and that from the pressure-signal transducer (1, 13) are passed to a comparator circuit (25), the output signal of which is passed to an evaluating circuit to serve as a criterion for monitoring the operation of the accident prevention strip (5).
2. Accident prevention strip as claimed in claim 1, having a space which reduces its volume in the course of deformation as a result of meeting resistance or reaching the closed position of the door leaf, a hollow tube being connected to said cavity to connect the cavity with a pressure switch which converts a pressure signal caused by the reduction in volume into an electrical output signal, characterised in that the output signal of the pressure switch (13) is passed to the comparator circuit (25) as the output signal of the pressure-signal transducer (1,13).
3. Accident prevention strip as claimed in claim 1 or 2, characterised in that between the output of the limit switch (CLOSED) and the associated input of the comparator circuit (25) is interposed a time switching member (24).
4. Accident prevention strip as claimed in claim 3, characterised in that the time switching member (24) is designed to be adjustable with regard to the time interval.
5. Accident prevention strip as claimed in claim 3 or 4, characterised in that the comparator circuit (25) has at least one AND gate.
6. Accident prevention strip as claimed in one of claims 1 to 5, characterised in that the output signal of the pressure-signal transducer (1, 13) or of the pressure switch (13) is formed by interrupting an output closed circuit.
7. Accident prevention strip as claimed in one of claims 1 to 6, characterised in that the output signal of the limit switch (CLOSED) is formed by interrupting an output closed circuit.
8. Accident prevention strip as claimed in one of claims 2 to 7, characterised in that the pressure switch (13) comprises a diaphragm (14) , held under tension in a housing (20), and dividing the interior thereof into two pressure chambers (15, 16), whilst a contact carrier (19) is screwed (22) in the housing wall (21), aligned with the central area of said diaphragm and movable at right angles to the plane of the diaphragm, at least one contact (DW) of said contact carrier being kept closed in the resting position of the diaphragm (14) by the latter, whilst the particular pressure chamber (15) of the two pressure chambers (15,16) which, when acted upon by pressure, causes the diaphragm (14) to bulge, thus opening the or each contact (DW), is connected to the cavity (6) of the accident prevention strip (5) via the hollow tube (12).
9. Accident prevention strip as claimed in one of claims 1 to 8, characterised in that, in the side area of the door opening, below the edge (2') of the door leaf (2) moving into the closed position, there is a projection (27) which, as the door leaf (2) closes, acts to deform the accident prevention strip (5), more particularly at the lower profile wall (7) of the cavity (6), said projection protruding below the door opening over the floor.
10. Accident prevention strip as claimed in claim 9, characterised in that the projection (27) is fixedly connected to the lower end region (29) of one of the side frames (30) of the door (1) by means of a crosspiece (28).
EP85110991A 1984-11-15 1985-08-30 Accident prevention strip Expired EP0182019B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85110991T ATE42989T1 (en) 1984-11-15 1985-08-30 ACCIDENT PROTECTION RAIL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3441820 1984-11-15
DE3441820A DE3441820C1 (en) 1984-11-15 1984-11-15 Accident protection bar

Publications (3)

Publication Number Publication Date
EP0182019A2 EP0182019A2 (en) 1986-05-28
EP0182019A3 EP0182019A3 (en) 1987-04-22
EP0182019B1 true EP0182019B1 (en) 1989-05-10

Family

ID=6250412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110991A Expired EP0182019B1 (en) 1984-11-15 1985-08-30 Accident prevention strip

Country Status (3)

Country Link
EP (1) EP0182019B1 (en)
AT (1) ATE42989T1 (en)
DE (2) DE3441820C1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3633834A1 (en) * 1985-12-18 1987-06-25 Neukirchen W U H Gmbh Co Kg Closing-edge safeguard for power-operated windows, doors and gates
DE3545219A1 (en) * 1985-12-20 1987-07-02 Otto Sterkel Gmbh & Co Control arrangement for a power-operated opening closure, particularly wings of gates
SE469038B (en) * 1991-09-20 1993-05-03 Cardo Door Ab DEVICE FOR ELECTRICALLY POWERED SHUTTER PORTS
US5228492A (en) * 1991-10-03 1993-07-20 Jou Ming Sen Electric rolling steel door safety stopping device
DE9301259U1 (en) * 1993-01-29 1993-05-19 Koch, Hubert, 85716 Unterschleißheim Protective contact device for closing edges
US5839227A (en) * 1997-07-29 1998-11-24 Gardner; Andrew Joseph Safety edge for an electrically operated door
DE19819704B4 (en) 1998-05-02 2006-09-21 Wabco Gmbh & Co.Ohg Method for the cyclical checking of monitoring devices in door locking systems
DE102006004791B4 (en) * 2006-02-02 2013-11-28 Roma Kg Overhead door

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028445C2 (en) * 1980-07-26 1984-09-13 Bayerische Motoren Werke AG, 8000 München Safety device for motorized locking parts
DE3146489A1 (en) * 1981-11-24 1983-06-01 Karl-Heinz Dipl.-Ing. 4358 Haltern Paul Safety device for monitoring contact tubes and switching strips

Also Published As

Publication number Publication date
EP0182019A3 (en) 1987-04-22
DE3441820C1 (en) 1990-12-06
EP0182019A2 (en) 1986-05-28
ATE42989T1 (en) 1989-05-15
DE3570102D1 (en) 1989-06-15

Similar Documents

Publication Publication Date Title
AT414005B (en) DOOR GAP MONITORING
EP0344401B1 (en) Safety device for an automatic motor vehicle window
DE3921641C2 (en)
DE19518527A1 (en) Monitorable locking arrangement for a window or a door or the like
DE102010026140A1 (en) Monitoring device for securing a driven element
EP0182019B1 (en) Accident prevention strip
EP2236732B1 (en) Gate
DE102006008513A1 (en) Sensor-monitoring device for motor driven wing of automatic door, has evaluation circuit provided for control and/or evaluation of detection signal, and sensors with overlapping area with reference to monitoring area
DE202008009320U1 (en) Monitoring and diagnostic unit
DE19847080C2 (en) Adjustment device for adjustment parts in motor vehicles
EP2589991B1 (en) Safety profile strip with light grid
EP3685001A1 (en) Device for protection against entrapment for a door for a vehicle, door system for a vehicle and method for producing a device for protection against entrapment for a door for a vehicle
WO1998050666A1 (en) Window/door for a building
DE19533153C2 (en) Sliding door with emergency opening or closing device
DE19958305C2 (en) Monitoring of finger protection strips for vehicle doors
EP0091607A2 (en) Safety device at moving closing elements, particularly at protecting shutters of industrial machines
EP0587632A1 (en) Safety system for passage closure members.
DE29623251U1 (en) rolling gate
DE3411198C2 (en)
DE2739636A1 (en) Alarm system for doors and windows - has number of independently triggered channels each having detectors and own alarm
DE9418885U1 (en) Securing device for the closing edge of a driven passage lock
DE102020213589B4 (en) Method for controlling a preferably electric sliding door
DE19819704B4 (en) Method for the cyclical checking of monitoring devices in door locking systems
EP0713949A1 (en) Security system for the closing edge of a motorised closure for a passage
DE29804585U1 (en) Roll or overhead door

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19871021

17Q First examination report despatched

Effective date: 19880826

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 42989

Country of ref document: AT

Date of ref document: 19890515

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3570102

Country of ref document: DE

Date of ref document: 19890615

ET Fr: translation filed
ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: NOMAFA AB

Effective date: 19900201

26 Opposition filed

Opponent name: CRAWFORD DOOR AB

Effective date: 19900207

Opponent name: NOMAFA AB

Effective date: 19900201

NLR1 Nl: opposition has been filed with the epo

Opponent name: NOMAFA AB

NLR1 Nl: opposition has been filed with the epo

Opponent name: CRAWFORD DOOR AB.

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19930328

NLR2 Nl: decision of opposition
ITTA It: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 85110991.8

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Free format text: HOERMANN KG ANTRIEBS- U. STEUERUNGSTECHNIK TRANSFER- MARANTEC ANTRIEBS- UND STEUERUNGSTECHNIK GMBH & CO. KG.

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: MARANTEC ANTRIEBS- UND STEUERUNGSTECHNIK GMBH & CO

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020722

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20020819

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020820

Year of fee payment: 18

Ref country code: NL

Payment date: 20020820

Year of fee payment: 18

Ref country code: FR

Payment date: 20020820

Year of fee payment: 18

Ref country code: BE

Payment date: 20020820

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020829

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20020903

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030830

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030830

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030831

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030831

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030831

BERE Be: lapsed

Owner name: *HORMANN K.G. ANTRIEBS- UND STEUERUNGSTECHNIK

Effective date: 20030831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040302

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040430

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20040301

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST