EP1632921A2 - Manual hazard warning device - Google Patents

Manual hazard warning device Download PDF

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Publication number
EP1632921A2
EP1632921A2 EP05016967A EP05016967A EP1632921A2 EP 1632921 A2 EP1632921 A2 EP 1632921A2 EP 05016967 A EP05016967 A EP 05016967A EP 05016967 A EP05016967 A EP 05016967A EP 1632921 A2 EP1632921 A2 EP 1632921A2
Authority
EP
European Patent Office
Prior art keywords
plate
lever
detector according
hazard detector
hood
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05016967A
Other languages
German (de)
French (fr)
Other versions
EP1632921A3 (en
EP1632921B1 (en
Inventor
Thomas Goulet
Carsten Menzel
Waldemar Ollik
Klaus Schnitzler
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.)
Novar GmbH
Original Assignee
Novar GmbH
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Filing date
Publication date
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Publication of EP1632921A2 publication Critical patent/EP1632921A2/en
Publication of EP1632921A3 publication Critical patent/EP1632921A3/en
Application granted granted Critical
Publication of EP1632921B1 publication Critical patent/EP1632921B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/12—Manually actuated calamity alarm transmitting arrangements emergency non-personal manually actuated alarm, activators, e.g. details of alarm push buttons mounted on an infrastructure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
    • H01H2003/0233—Emergency operating parts, e.g. for stop-switch in dangerous conditions for alarm triggering, e.g. fire alarm, emergency off switches operated by breaking a glass
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H2009/0083—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 using redundant components, e.g. two pressure tubes for pressure switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/052—Controlling, signalling or testing correct functioning of a switch

Definitions

  • the invention relates to a manual hazard detector, comprising a housing of a base plate and a hood-shaped cover plate having at least one window-like opening in which a depressible rectangular plate is seated, which is in operative connection with at least one switch, during and after the pressing of the plate permanently changes its switching state.
  • Such danger detectors which are often referred to as fire detectors or as a push button, are known.
  • Some countries prescribe a compressible elastic plastic plate, which returns to its original position when the detector is reset manually.
  • Other countries prescribe a pane of glass which is destroyed when pushed in.
  • the plate holds with one of its edges, usually with its upper edge, the pusher of a microswitch in its working position.
  • the pusher of the microswitch is released, so that its switching contact changes from the working to the rest position.
  • the switching signal generated thereby is fed via a line connected to the detector directly or after processing in an electronic circuit of a control center.
  • a manual hazard detector of the kind mentioned in the preamble of claim 1 is known from DE 101 43 284 A1.
  • the impressible plate is made of plastic. Against its inside is the one end of a two-armed lever. When the plate is pressed in, this arm of the lever actuates a switch arranged underneath. At the same time the other arm of the lever comes to lie under an opening of the housing upper part. To reset a tool or key is inserted into the opening to push the lever back to its original position.
  • the invention has for its object to provide a hazard detector of the type specified in the introduction, but on the other hand simplified construction.
  • the plate holds in the resting state of the detector with one of its edges a pivotable about the base plate axis one-armed lever against the force of at least one spring in its rest position that the lever is in operative connection with the switch, that the plate bears with its opposite edge against a cam of a cylindrical body which is rotatable about an axis perpendicular to the base plate and that the cylindrical body is rotatable in a position in which the cam is out of engagement with the edge of the plate, whereby spring-loaded lever pivots in its triggered or alarm position.
  • the cylindrical body is rotatable through an opening of the hood-shaped cover plate by means of a key-like tool (claim 2), so that the detector housing for performing a function test or to return a depressed (plastic) plate does not need to be opened.
  • the hood-shaped cover plate may have a preferably closable opening, via which a key-like tool for rotating the cylindrical body can be inserted (claim 3).
  • the closure of the opening in the cover plate prevents the ingress of dust and water into the detector and, together with the key-like tool, makes unauthorized manipulation of the detector difficult.
  • the plate can at its two other, free longitudinal edges, preferably this is their side edges, slidably guided (claim 4), so that on the one hand behind the plate a large space remains, in which the plate is pressed and on the other hand counteracting a displacement of the plate Frictional forces can be kept low.
  • the plate can be supported with its two other, free longitudinal edges on a dust cover, the center has a trough-shaped recessed area as a free space into which the plate is pressed (claim 5).
  • this dust cover is designed in cooperation with the base plate so that it also provides protection against the ingress of water.
  • the lever has a flag, which is in the idle state of the detector outside the window opening and in the tripped state within the window opening (claim 7), so that it can be seen at a glance, whether the detector is in rest or in the alarm state, what before In particular, if the detector is equipped with an elastic plastic plate, otherwise not readily ascertainable.
  • the lever loading into its working position spring can act on the free end (claim 9). Therefore, it is sufficient a relatively weak spring, which excludes the risk of a lever made of plastic that the lever deforms over time by cold flow.
  • the base plate may have two holes and the dust cover corresponding recessed openings that dustproof with these holes are aligned (claim 10) so that the detector can be mounted without dust and dirt can penetrate into its interior.
  • the hood-shaped cover plate with its one edge in the corresponding edge of the base plate can be suspended and the base plate has in the region of its opposite edge latching claws which engage in corresponding openings in the adjacent side surface of the hood-shaped cover plate (claim 11), so that the hood-shaped cover plate without tools can be snapped onto the detector base plate.
  • the key-shaped tool two lugs at a distance of the openings in the respective side surface of the hood-shaped cover plate have (claim 12).
  • the roller-shaped body may be rotatable in a position in which its cam or a second cam bulges the respective side wall of the hood-shaped cover plate so far that the latching claws out of engagement with the Openings in this side surface come (claim 13). This makes it possible to open the detector without additional tool to bring him by restoring the plastic plate or replacement of the glass plate from the alarm state back to the idle or standby state.
  • the cylindrical body can rest in the rotational position in which its cam holds the plate in the rest position against a stop or be releasably locked (claim 14). This ensures that the plate, whether after a functional test, or after a reset of the detector from the alarm to the resting state, is vibration-proof in accordance with the regulations.
  • the base plate 1 has positioning pins 1.1 for the circuit board 2 and holes 1.2 for the passage of arranged on the back of the circuit board 2 pins 2.1 to connect them to a terminal block 2.4.
  • the base plate 1 has at its upper edge recesses 1.3 for suspending not visible in this representation lugs on the upper side edge of the hood-shaped cover plate 7, which also has not visible openings at its lower side edge in this illustration, in which located at the bottom of the base plate 1 Intervene locking claws 1.4.
  • the base plate 1 At its side webs 1.5, the base plate 1 has detents 1.6, with which recesses 4.1 in the side walls 4.2 of the dust cover 4 correspond.
  • two mounting holes 1.7 are formed with a sleeve-shaped edge.
  • the circuit board 2 carries next to the indicated electronic components near its upper edge two microswitches 2.2 and 2.3 with switching flags 2.21 and 2.31.
  • the lever 3 is in operative connection with the switching lugs 2.21 and 2.31. It comprises a bearing bush 3.1 and a flag 3.2. On the free end of the lever acts a curved leaf spring 3.3.
  • the dust cover 4 has openings 4.3, which correspond to the holes 1.7 of the base plate 1, two-sided guide webs 4.4 and in between a trough-shaped recessed area 4.5. Not visible in this view Light guides correspond with LEDs, not shown, on the circuit board 2, which signal the operating state of the detector.
  • the depressible plate 5 which may consist of an elastic plastic disc or a prestressed, easily destructible glass, is held laterally by the guide webs 4.4 of the dust cover 4 and covers the trough-shaped recessed portion 4.5 of the dust cover 4. Near its upper edge, the plate has the back, i. hidden in this view, a distance pin, with which it is supported on the dust cover 4 in the region of the trough-shaped depression 4.5.
  • the cylindrical body 6 is rotatably held in a sleeve 1.8 of the base plate 1 and has a holding him in this bush, elastic locking lug 6.1, a certain interaction with the lower edge of the plate 5 cam 6.2, a recessed, in cross-section approximately triangular pin 6.3 and a stop lug 6.4.
  • the hood-shaped cover plate 7 has an upper window-shaped recess 7.1, in which a transparent plastic window 7.2 is snapped, a lower, large window opening 7.3, through which the plate 5 is accessible and a closable via a plastic slide 7.4 opening 7.5 in height of the axis of the cylindrical body 6th
  • the key-shaped tool 8 has at the end of its cylindrical shaft 8.1 a key profile 8.2, which is complementary to the countersunk pin 6.3 of the cylindrical body 6.
  • the protective flap 9 is preferably made of a transparent plastic and has lateral pivot pins which are in holes in the side surfaces of the cover plate 7 near Intervene upper edge.
  • Figure 2 shows a view of the cover plate 7 from the inside. At its upper edge, it has two lugs 7.6, which are intended for engagement in the recesses 1.3 of the base plate 1 (see Fig .. 1). Near the opening 7.5, the lower side wall has two small openings 7.7, which are intended for engagement of the latching claws 1.4 of the base plate 1 (see Fig. 1).
  • Figure 3 shows the detector in the assembled state, but without the hood-shaped cover plate.
  • the dust cover 4 is shown partially broken in the upper area.
  • the detector is in its standby or standby position.
  • the crushable plate 5 is supported with its lower edge against the cam 6.2 of the cylindrical body 6, the stop lug 6.4 rests against a pin of the base plate 1. With its upper edge, therefore, the plate 5 holds the pivotally mounted at its left end about a pivot lever 3 against the force of the free end of the lever 3 loading leaf spring 3.3 in the position shown, in which the lever 3 with its opposite side surface, the switching flags 2.21 and 2.31 of the microswitches 2.2 and 2.3 in their spring-loaded working position, ie keeps depressed.
  • the flag 3.2 of the lever 3 is located outside the window opening 7.3 of the hood-shaped cover plate 7 (see Fig. 1).
  • Figure 4 is a view of the dust cover 4 from the inside.
  • An integrally molded pivot 4.6 for the bearing bush 3.1 of the lever 3 has a locking lug 4.61, which secures this lever on the pivot 4.6.
  • the apertures 4.3 have stepped, raised edges 4.31, which are intended to engage in the corresponding, bush-shaped edges of the mounting holes 1.7 of the base plate 1 (see Fig. 1) to the ingress of dust and water in the surrounded by the dust cover 4 interior to prevent the detector.
  • Hollow pins 4.7 serve as hold-downs for the circuit board 2 in Fig. 1.
  • Light guide 4.8 bridge the distance between SMD LEDs (not shown) on the circuit board 2 and openings in the window-shaped recess 7.1 of the cover plate (see Fig .. 1).
  • On the inside of the upper edge of the abutment is 4.9 for the fixed leg of the leaf spring 3.3 in Fig. 3 can be seen.
  • FIG. 5 shows the detector in the same illustration as FIG. 3, but in the alarm state.
  • the existing in this case of an elastic plastic plate 5 has been pressed and is correspondingly concave. Their lower edge is therefore behind the cams 6.2 of the cylindrical body 6 passes and has been moved by the lever 3 under the action of the leaf spring 3.3 in the position shown down.
  • the microswitches 2.2 and 2.3 facing side edge of the lever 3 has the switching flags 2.21 and 2.31 of the microswitches 2.2 and 2.3 released, so that the latter have switched to their rest position.
  • the circuit on the circuit board 2 processes this change in the switching states of the microswitches 2.2 and 2.3 into a corresponding alarm signal at the external terminals 2.4 (see Fig. 1).
  • the flag 3.2 of the lever 3 is now visible in the cutout of the window opening 7.3 of the cover plate 7 (see Fig. 1).
  • FIG. 6 shows the same view of the detector as FIG. 5, but in this case the alarm condition has not been generated by depressing the plate 5 but for the purpose of a functional test or trial alarm by rotation of the cylindrical body 6 by means of the key-shaped tool 8.
  • the plate 5 Under the action of the spring-loaded lever 3, the plate 5 has moved downwards, but is after rotation of the cylindrical body 6 by about 90 ° clockwise with its lower edge as before on the cam 6.2 of the cylindrical body 6.
  • the wrench-shaped tool 8 By rotating the wrench-shaped tool 8 in the counterclockwise direction, the plate 5 can be returned to the rest or standby state shown in FIG.
  • the detector is returned from the alarm state (see Fig. 5) back to the idle state.
  • the plate 5 After rotation of the wrench-shaped tool 8 in the position shown in Fig. 6, the plate 5 jumps from the concave shape in which its lower edge in the release behind the cam 6.2 rests on the cylindrical body 6, back to the flat position, so now her Lower edge rests again on the cam 6.2 of the cylindrical body 6 and by rotation of the latter, the plate 5 is moved upwards into its position holding the lever 3 in the rest position.
  • the plate 5 is not made of plastic but is a destructible glass, a new disc is used in the drawn in Figure 6 position of the cylindrical body 6 after removal of the destroyed disc and returned by rotation of the key-shaped tool 8 in its upper clamped position.
  • the detector housing must be opened by removing the hood-shaped cover plate 7.
  • the key-shaped tool 8 has two lugs 8.3 spaced from the openings 7.7 in the lower side edge of the hood-shaped cover plate 7 (see Fig. 2). 7, the latching claws 1.4 of the base plate 1 are pushed back inwards out of the openings 7. 7, so that the cover plate 7 can pivot away from the base plate 1 with its lower edge and then be removed with slight lifting, the lugs 7.6 of the cover plate 7 of the recesses 1.3 at the top Edge of the base plate 1 (see Fig. 1) free.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

A fire alarm is triggered by a switch in a rectangular frame (1) countersunk in the wall. The switch unit has a glass cover plate (5) whose upper edge rests when not activated against a spring-lever (3). The lever is coupled to a switch (2.2, 2.3). The lower edge of the plate rests against a cam (6.2) forming part of a spindle (6) that is coupled to the switch and exposed at one end and operates the switch for test purposes.

Description

Die Erfindung betrifft einen manuellen Gefahrenmelder, mit einem Gehäuse aus einer Grundplatte und einer haubenförmigen Deckplatte, die mindestens eine fensterartige Öffnung hat, in der eine eindrückbare rechteckige Platte sitzt, die in Wirkverbindung mit mindestens einem Schalter steht, der bei und nach dem Eindrücken der Platte dauerhaft seinen Schaltzustand wechselt.The invention relates to a manual hazard detector, comprising a housing of a base plate and a hood-shaped cover plate having at least one window-like opening in which a depressible rectangular plate is seated, which is in operative connection with at least one switch, during and after the pressing of the plate permanently changes its switching state.

Derartige Gefahrenmelder, die häufig als Feuermelder oder als Druckknopfmelder bezeichnet werden, sind bekannt. Einige Länder schreiben eine eindrückbare elastische Kunststoffplatte vor, die beim manuellen Rückstellen des Melders wieder in ihre Ausgangslage zurückkehrt. Andere Länder schreiben eine Glasscheibe vor, die beim Eindrücken zerstört wird. Im Ruhezustand hält die Platte mit einem ihrer Ränder, gewöhnlich mit ihrem oberen Rand, den Drücker eines Mikroschalters in seiner Arbeitsstellung. Beim Eindrücken der Platte wird der Drücker des Mikroschalters frei, so dass dessen Schaltkontakt von der Arbeits- in die Ruhelage wechselt. Das dadurch erzeugte Schaltsignal wird über eine an den Melder angeschlossene Leitung direkt oder nach Verarbeitung in einer elektronischen Schaltung einer Zentrale zugeleitet.Such danger detectors, which are often referred to as fire detectors or as a push button, are known. Some countries prescribe a compressible elastic plastic plate, which returns to its original position when the detector is reset manually. Other countries prescribe a pane of glass which is destroyed when pushed in. At rest, the plate holds with one of its edges, usually with its upper edge, the pusher of a microswitch in its working position. When pressing the plate, the pusher of the microswitch is released, so that its switching contact changes from the working to the rest position. The switching signal generated thereby is fed via a line connected to the detector directly or after processing in an electronic circuit of a control center.

Die äußeren Abmessungen eines derartigen Melders sind genormt und relativ klein. Der zur Verfügung stehende Platz reicht in der Regel nicht aus, um in dem gleichen Volumen noch eine elektrische Schaltung unterzubringen. Dies ist jedoch wünschenswert, wenn die Meldung an die Zentrale als Datentelegramm übertragen werden soll oder weitere Melder-Zustände, z.B. "Test" und/oder "Rückmeldung" signalisiert werden sollen.The external dimensions of such a detector are standardized and relatively small. The available space is usually not enough to accommodate an electrical circuit in the same volume. However, this is desirable if the message is to be transmitted to the control center as a data telegram or other detector states, eg "test" and / or "feedback" should be signaled.

Ein manueller Gefahrenmelder der einleitend und im Oberbegriff des Anspruches 1 genannten Art ist aus der DE 101 43 284 A1 bekannt. Die eindrückbare Platte besteht aus Kunststoff. Gegen ihre Innenseite liegt das eine Ende eines zweiarmigen Hebels an. Bei Eindrücken der Platte betätigt dieser Arm des Hebels einen darunter angeordneten Schalter. Gleichzeitig kommt der andere Arm des Hebels unter eine Öffnung des Gehäuseoberteils zu liegen. Zur Rückstellung wird ein Werkzeug oder Schlüssel in die Öffnung eingeführt, um den Hebel wieder in seine Ausgangslage zu drücken.A manual hazard detector of the kind mentioned in the preamble of claim 1 is known from DE 101 43 284 A1. The impressible plate is made of plastic. Against its inside is the one end of a two-armed lever. When the plate is pressed in, this arm of the lever actuates a switch arranged underneath. At the same time the other arm of the lever comes to lie under an opening of the housing upper part. To reset a tool or key is inserted into the opening to push the lever back to its original position.

Der Erfindung liegt die Aufgabe zugrunde, einen Gefahrenmelder der einleitend angegebenen Gattung, jedoch demgegenüber vereinfachter Konstruktion zu schaffen.The invention has for its object to provide a hazard detector of the type specified in the introduction, but on the other hand simplified construction.

Diese Aufgabe ist erfindungsgemäß dadurch gelöst, dass die Platte im Ruhezustand des Melders mit einem ihrer Ränder einen um eine zu der Grundplatte rechtwinklige Achse schwenkbaren einarmigen Hebel entgegen der Kraft mindestens einer Feder in seiner Ruhelage hält, dass der Hebel in Wirkverbindung mit dem Schalter steht, dass die Platte mit ihrem gegenüberliegenden Rand gegen einen Nocken eines walzenförmigen Körpers anliegt, der um eine zur Grundplatte rechtwinkelige Achse drehbar ist und dass der walzenförmige Körper in eine Stellung drehbar ist, in der der Nocken außer Eingriff mit dem Rand der Platte kommt, wodurch der federbelastete Hebel in seine ausgelöste oder Alarmstellung schwenkt.This object is inventively achieved in that the plate holds in the resting state of the detector with one of its edges a pivotable about the base plate axis one-armed lever against the force of at least one spring in its rest position that the lever is in operative connection with the switch, that the plate bears with its opposite edge against a cam of a cylindrical body which is rotatable about an axis perpendicular to the base plate and that the cylindrical body is rotatable in a position in which the cam is out of engagement with the edge of the plate, whereby spring-loaded lever pivots in its triggered or alarm position.

Diese Konstruktion ist sehr platzsparend und kommt mit wenigen einfach geformten Teilen aus, die daher kostengünstig aus Kunststoff im Spritzgussverfahren herstellbar sind. Ausgelöst, d.h. in den Alarmzustand gebracht wird der Melder in üblicher Weise durch Eindrücken der zwischen dem Hebel und dem Nocken des walzenförmigen Körpers gewissermaßen eingespannten Platte. Handelt es sich um eine Kunststoffplatte, so gleitet deren Rand von dem Nocken des walzenförmigen Körpers ab und unter der Wirkung des federbelasteten Hebels in eine in Richtung der Grundplatte des Melders hinter dem Nocken liegende Freistellung. Handelt es sich um eine Glasplatte, so wird der Hebel durch deren Zerstörung frei. In beiden Fällen wechselt demzufolge das seinerseits unter Federvorspannung stehende Schaltorgan des Schalters z.B. von seiner Arbeits- in seine Ruhelage, so dass ein Arbeitskontakt öffnet und/oder ein Ruhekontakt schließt. Zum Zweck eines Funktionstests des Melders wird hingegen die Einspannung der eindrückbaren Platte zwischen dem Hebel und dem Nocken des walzenförmigen Körpers durch Drehung des letzteren aufgehoben. Der Hebel verschiebt somit die Platte in der Ebene ihrer Ruhelage, wobei die Platte auch bei Ausführung als Glasscheibe nicht bricht. Durch Zurückdrehen des walzenförmigen Körpers in seine Ausgangsstellung kommt der Melder nach dem Funktionstest wieder in seinen normalen Ruhe- oder Bereitschaftszustand. Da die mechanischen Funktionsorgane im Bereich von zwei gegenüberliegenden Rändern der Platte, zweckmäßig im Bereich deren unteren Randes, angeordnet sind, bleibt hinter der Platte im Gehäuseunterteil genügend Raum zur Unterbringung einer elektrischen Schaltungsplatine.This construction is very space-saving and comes with a few simple-shaped parts, which are therefore inexpensive to produce from plastic by injection molding. Tripped, ie brought into alarm state is the Detector in a conventional manner by pressing the plate between the lever and the cam of the cylindrical body to a certain extent clamped. If it is a plastic plate, so its edge slides from the cam of the cylindrical body and under the action of the spring-loaded lever in a lying in the direction of the base plate of the detector behind the cam exemption. If it is a glass plate, the lever is free by their destruction. In both cases, therefore, in turn, the spring-loaded switching member of the switch changes, for example, from its working to its rest position, so that a normally open contact and / or closes a normally closed contact. For the purpose of a functional test of the detector, however, the clamping of the depressible plate between the lever and the cam of the cylindrical body is canceled by rotation of the latter. The lever thus displaces the plate in the plane of its rest position, the plate does not break even when executed as a glass sheet. By turning back the cylindrical body to its initial position of the detector comes back to its normal resting or ready state after the functional test. Since the mechanical functional elements are arranged in the region of two opposite edges of the plate, expediently in the region of its lower edge, behind the plate in the lower housing part there is sufficient space for accommodating an electrical circuit board.

Zweckmäßig ist der walzenförmige Körper durch eine Öffnung der haubenförmigen Deckplatte hindurch mittels eines schlüsselartigen Werkzeugs drehbar (Anspruch 2), so dass das Meldergehäuse zur Durchführung eines Funktionstests oder zur Rückstellung einer eingedrückten (Kunststoff-) Platte nicht geöffnet werden muss.Suitably, the cylindrical body is rotatable through an opening of the hood-shaped cover plate by means of a key-like tool (claim 2), so that the detector housing for performing a function test or to return a depressed (plastic) plate does not need to be opened.

Insbesondere kann die haubenförmige Deckplatte eine vorzugsweise verschließbare Öffnung haben, über welche ein schlüsselartiges Werkzeug zum Drehen des walzenförmigen Körpers einführbar ist (Anspruch 3). Der Verschluss der Öffnung in der Deckplatte verhindert das Eindringen von Staub und Wasser in den Melder und erschwert zusammen mit dem schlüsselartigen Werkzeug unbefugte Manipulationen an dem Melder.In particular, the hood-shaped cover plate may have a preferably closable opening, via which a key-like tool for rotating the cylindrical body can be inserted (claim 3). The closure of the opening in the cover plate prevents the ingress of dust and water into the detector and, together with the key-like tool, makes unauthorized manipulation of the detector difficult.

Die Platte kann an ihren beiden anderen, freien Längsrändern, vorzugsweise sind dies ihre Seitenränder, verschiebbar geführt sein (Anspruch 4), so dass einerseits hinter der Platte ein großer Freiraum verbleibt, in den die Platte eindrückbar ist und andererseits die einem Verschieben der Platte entgegenwirkenden Reibungskräfte gering gehalten werden können.The plate can at its two other, free longitudinal edges, preferably this is their side edges, slidably guided (claim 4), so that on the one hand behind the plate a large space remains, in which the plate is pressed and on the other hand counteracting a displacement of the plate Frictional forces can be kept low.

Insbesondere kann die Platte sich mit ihren beiden anderen, freien Längsrändern auf einer Staubschutzhaube abstützen, die mittig einen wannenförmig vertieften Bereich als Freiraum hat, in den die Platte eindrückbar ist (Anspruch 5). Bevorzugt ist diese Staubschutzhaube im Zusammenwirken mit der Grundplatte so ausgebildet, dass sie auch Schutz gegen das Eindringen von Wasser bietet.In particular, the plate can be supported with its two other, free longitudinal edges on a dust cover, the center has a trough-shaped recessed area as a free space into which the plate is pressed (claim 5). Preferably, this dust cover is designed in cooperation with the base plate so that it also provides protection against the ingress of water.

Zur definierten Führung der Platte kann letztere im Bereich desjenigen Randes, gegen den der schwenkbare Hebel anliegt, mittig einen sich gegen die darunter liegende Staubschutzhaube abstützenden Zapfen haben (Anspruch 6).For defined guidance of the plate, the latter in the region of that edge, against which the pivotable lever rests, in the middle have a against the underlying dust cover supporting pin (claim 6).

Vorzugsweise hat der Hebel eine Fahne, die im Ruhezustand des Melders außerhalb der Fensteröffnung und im ausgelösten Zustand innerhalb der Fensteröffnung liegt (Anspruch 7), so dass auf einen Blick erkennbar ist, ob der Melder sich im Ruhe- oder im Alarmzustand befindet, was vor allem dann, wenn der Melder mit einer elastischen Kunststoffplatte ausgerüstet ist, sonst nicht ohne weiteres feststellbar ist.Preferably, the lever has a flag, which is in the idle state of the detector outside the window opening and in the tripped state within the window opening (claim 7), so that it can be seen at a glance, whether the detector is in rest or in the alarm state, what before In particular, if the detector is equipped with an elastic plastic plate, otherwise not readily ascertainable.

Zur Minimierung des Platzbedarfes und des Schwenkwinkels des Hebels ist es zweckmäßig, wenn die Schwenkachse des Hebels sich nahe einer Ecke der Grundplatte befindet (Anspruch 8).To minimize the space requirement and the pivot angle of the lever, it is expedient if the pivot axis of the lever is located near a corner of the base plate (claim 8).

Die den Hebel in seine Arbeitslage belastende Feder kann an dessen freien Ende angreifen (Anspruch 9). Es genügt deshalb eine relativ schwache Feder, was bei einem aus Kunststoff bestehenden Hebel das Risiko ausschließt, dass der Hebel sich im Laufe der Zeit durch Kaltfließen verformt.The lever loading into its working position spring can act on the free end (claim 9). Therefore, it is sufficient a relatively weak spring, which excludes the risk of a lever made of plastic that the lever deforms over time by cold flow.

Zur Schraubbefestigung des Melders kann die Grundplatte zwei Löcher und die Staubschutzhaube korrespondierende, versenkte Öffnungen haben, die staubdicht mit diesen Löchern fluchten (Anspruch 10), damit der Melder montiert werden kann, ohne dass in sein Inneres Staub und Schmutz eindringen können.To screw the detector, the base plate may have two holes and the dust cover corresponding recessed openings that dustproof with these holes are aligned (claim 10) so that the detector can be mounted without dust and dirt can penetrate into its interior.

Bevorzugt ist die haubenförmige Deckplatte mit ihrem einen Rand in den korrespondierenden Rand der Grundplatte einhängbar und die Grundplatte hat im Bereich ihres gegenüberliegenden Randes Rastklauen, die in korrespondierende Öffnungen in der benachbarten Seitenfläche der haubenförmigen Deckplatte eingreifen (Anspruch 11), so dass die haubenförmige Deckplatte werkzeuglos auf die Meldergrundplatte aufschnappbar ist.Preferably, the hood-shaped cover plate with its one edge in the corresponding edge of the base plate can be suspended and the base plate has in the region of its opposite edge latching claws which engage in corresponding openings in the adjacent side surface of the hood-shaped cover plate (claim 11), so that the hood-shaped cover plate without tools can be snapped onto the detector base plate.

Zum Öffnen des Melders kann das schlüsselförmige Werkzeug zwei Nasen im Abstand der Öffnungen in der betreffenden Seitenfläche der haubenförmigen Deckplatte haben (Anspruch 12).To open the detector, the key-shaped tool two lugs at a distance of the openings in the respective side surface of the hood-shaped cover plate have (claim 12).

Stattdessen kann der walzenförmige Körper in eine Stellung drehbar sein, in der sein Nocken oder ein zweiter Nocken die betreffende Seitenwand der haubenförmigen Deckplatte so weit auswölbt, dass die Rastklauen außer Eingriff mit den Öffnungen in dieser Seitenfläche kommen (Anspruch 13). Dies ermöglicht es, den Melder ohne Zusatzwerkzeug zu öffnen, um ihn durch Rückstellung der Kunststoffplatte oder Ersatz der Glasplatte aus dem Alarmzustand wieder in den Ruhe- oder Bereitschaftszustand zu bringen.Instead, the roller-shaped body may be rotatable in a position in which its cam or a second cam bulges the respective side wall of the hood-shaped cover plate so far that the latching claws out of engagement with the Openings in this side surface come (claim 13). This makes it possible to open the detector without additional tool to bring him by restoring the plastic plate or replacement of the glass plate from the alarm state back to the idle or standby state.

Der walzenförmige Körper kann in derjenigen Drehstellung, in der sein Nocken die Platte in der Ruhelage hält, gegen einen Anschlag anliegen oder lösbar verrastet sein (Anspruch 14). Damit ist sichergestellt, dass die Platte, sei es nach einem Funktionstest, sei es nach einer Rückstellung des Melders aus dem Alarm- in den Ruhezustand, erschütterungssicher die vorschriftsmäßige Lage hat.The cylindrical body can rest in the rotational position in which its cam holds the plate in the rest position against a stop or be releasably locked (claim 14). This ensures that the plate, whether after a functional test, or after a reset of the detector from the alarm to the resting state, is vibration-proof in accordance with the regulations.

In der Zeichnung ist ein Ausführungsbeispiel des vorgeschlagenen Melders in teilweise schematischer Vereinfachung dargestellt. Es zeigt:

Fig. 1
eine Explosionsdarstellung des Melders,
Fig. 2
die Deckplatte,
Fig. 3
den Melder im Ruhestand bei abgenommener Deckplatte,
Fig. 4
die Staubschutzhaube,
Fig. 5
den Melder im Alarmzustand, bei abgenommener Deckplatte,
Fig. 6
den Melder im durch einen Funktionstest ausgelösten und
Fig. 7
das Öffnen des Meldergehäuses.
Der in Fig. 1
dargestellte, manuell auslösbare Gefahren- melder umfasst eine wandmontierbare Grundplatte 1, eine Schaltungsplatine 2, einen schwenkbaren Hebel 3, eine Staubschutzhaube 4, eine eindrückbare Platte 5, einen walzenförmigen Körper 6, eine haubenförmige Deckplatte 7 als Außengehäuse, ein schlüsselartiges Werkzeug 8 und eine Schutzklappe 9.
In the drawing, an embodiment of the proposed detector is shown in partial schematic simplification. It shows:
Fig. 1
an exploded view of the detector,
Fig. 2
the cover plate,
Fig. 3
the detector in retirement with the cover plate removed,
Fig. 4
the dust cover,
Fig. 5
the detector in alarm condition, with removed cover plate,
Fig. 6
the detector in the triggered by a bump test and
Fig. 7
opening the detector housing.
The in Fig. 1
illustrated, manually triggered danger detector comprises a wall-mountable base plate 1, a circuit board 2, a pivoting lever 3, a dust cover 4, a depressible plate 5, a cylindrical body 6, a hood-shaped cover plate 7 as an outer housing, a key-like tool 8 and a protective cover. 9

Die Grundplatte 1 hat Positionierungszapfen 1.1 für die Schaltungsplatine 2 und Löcher 1.2 für den Durchtritt von auf der Rückseite der Schaltungsplatine 2 angeordneten Kontaktstiften 2.1 zu deren Verbindung mit einem Klemmenblock 2.4. Die Grundplatte 1 hat an ihrem oberen Rand Ausnehmungen 1.3 zum Einhängen von in dieser Darstellung nicht sichtbaren Nasen am oberen Seitenrand der haubenförmigen Deckplatte 7, die an ihrem unteren Seitenrand in dieser Darstellung ebenfalls nicht sichtbare Öffnungen hat, in welche am unteren Rand der Grundplatte 1 befindliche Rastklauen 1.4 eingreifen. An ihren Seitenstegen 1.5 hat die Grundplatte 1 Rastklinken 1.6, mit denen Ausnehmungen 4.1 in den Seitenwänden 4.2 der Staubschutzhaube 4 korrespondieren. In der Grundplatte 1 sind zwei Montagelöcher 1.7 mit einer buchsenförmigen Umrandung ausgebildet.The base plate 1 has positioning pins 1.1 for the circuit board 2 and holes 1.2 for the passage of arranged on the back of the circuit board 2 pins 2.1 to connect them to a terminal block 2.4. The base plate 1 has at its upper edge recesses 1.3 for suspending not visible in this representation lugs on the upper side edge of the hood-shaped cover plate 7, which also has not visible openings at its lower side edge in this illustration, in which located at the bottom of the base plate 1 Intervene locking claws 1.4. At its side webs 1.5, the base plate 1 has detents 1.6, with which recesses 4.1 in the side walls 4.2 of the dust cover 4 correspond. In the base plate 1, two mounting holes 1.7 are formed with a sleeve-shaped edge.

Die Schaltungsplatine 2 trägt neben den angedeuteten elektronischen Bauelementen nahe ihrem oberen Rand zwei Mikroschalter 2.2 und 2.3 mit Schaltfahnen 2.21 und 2.31.The circuit board 2 carries next to the indicated electronic components near its upper edge two microswitches 2.2 and 2.3 with switching flags 2.21 and 2.31.

Der Hebel 3 steht mit den Schaltfahnen 2.21 und 2.31 in Wirkverbindung. Er umfasst eine Lagerbüchse 3.1 und eine Fahne 3.2. Auf das freie Ende des Hebels wirkt eine gebogene Blattfeder 3.3.The lever 3 is in operative connection with the switching lugs 2.21 and 2.31. It comprises a bearing bush 3.1 and a flag 3.2. On the free end of the lever acts a curved leaf spring 3.3.

Die Staubschutzhaube 4 hat Durchbrüche 4.3, die mit den Löchern 1.7 der Grundplatte 1 korrespondieren, beidseitige Führungsstege 4.4 und dazwischen einen wannenförmig vertieften Bereich 4.5. In dieser Ansicht nicht sichtbare Lichtleitzapfen korrespondieren mit nicht dargestellte LEDs auf der Schaltungsplatine 2, die den Betriebszustand des Melders signalisieren.The dust cover 4 has openings 4.3, which correspond to the holes 1.7 of the base plate 1, two-sided guide webs 4.4 and in between a trough-shaped recessed area 4.5. Not visible in this view Light guides correspond with LEDs, not shown, on the circuit board 2, which signal the operating state of the detector.

Die eindrückbare Platte 5, die aus einer elastischen Kunststoffscheibe oder einer vorgespannten, leicht zerstörbaren Glasscheibe bestehen kann, ist seitlich von den Führungsstegen 4.4 der Staubschutzhaube 4 gehalten und überdeckt den wannenförmig vertieften Bereich 4.5 der Staubschutzhaube 4. Nahe ihres Oberrandes hat die Platte rückseitig, d.h. in dieser Ansicht verdeckt, einen Distanzzapfen, mit dem sie sich auf der Staubschutzhaube 4 im Bereich deren wannenförmiger Vertiefung 4.5 abstützt.The depressible plate 5, which may consist of an elastic plastic disc or a prestressed, easily destructible glass, is held laterally by the guide webs 4.4 of the dust cover 4 and covers the trough-shaped recessed portion 4.5 of the dust cover 4. Near its upper edge, the plate has the back, i. hidden in this view, a distance pin, with which it is supported on the dust cover 4 in the region of the trough-shaped depression 4.5.

Der walzenförmige Körper 6 ist in einer Büchse 1.8 der Grundplatte 1 drehbar gehalten und hat eine ihn in dieser Büchse haltende, elastische Rastnase 6.1, einen zum Zusammenwirken mit dem Unterrand der Platte 5 bestimmten Nocken 6.2, einen versenkten, im Querschnitt etwa dreieckigen Zapfen 6.3 und eine Anschlagnase 6.4.The cylindrical body 6 is rotatably held in a sleeve 1.8 of the base plate 1 and has a holding him in this bush, elastic locking lug 6.1, a certain interaction with the lower edge of the plate 5 cam 6.2, a recessed, in cross-section approximately triangular pin 6.3 and a stop lug 6.4.

Die haubenförmige Deckplatte 7 hat eine obere fensterförmige Vertiefung 7.1, in die ein transparentes Kunststofffenster 7.2 einschnappbar ist, eine untere, große Fensteröffnung 7.3, über die die Platte 5 zugänglich ist und eine über einen Kunststoffschieber 7.4 verschließbare Öffnung 7.5 in Höhe der Achse des walzenförmigen Körpers 6.The hood-shaped cover plate 7 has an upper window-shaped recess 7.1, in which a transparent plastic window 7.2 is snapped, a lower, large window opening 7.3, through which the plate 5 is accessible and a closable via a plastic slide 7.4 opening 7.5 in height of the axis of the cylindrical body 6th

Das schlüsselförmige Werkzeug 8 hat am Ende seines zylindrischen Schaftes 8.1 ein Schlüsselprofil 8.2, das komplementär zu dem versenkten Zapfen 6.3 des walzenförmigen Körpers 6 ist.The key-shaped tool 8 has at the end of its cylindrical shaft 8.1 a key profile 8.2, which is complementary to the countersunk pin 6.3 of the cylindrical body 6.

Die Schutzklappe 9 besteht vorzugsweise aus einem transparenten Kunststoff und hat seitliche Schwenkzapfen, die in Löcher in den Seitenflächen der Deckplatte 7 nahe deren Oberrandes eingreifen.The protective flap 9 is preferably made of a transparent plastic and has lateral pivot pins which are in holes in the side surfaces of the cover plate 7 near Intervene upper edge.

Figur 2 zeigt eine Ansicht der Deckplatte 7 von innen. An ihrem Oberrand hat sie zwei Nasen 7.6, die zum Eingriff in die Ausnehmungen 1.3 der Grundplatte 1 (vgl. Fig. 1) bestimmt sind. Nahe der Öffnung 7.5 hat die untere Seitenwand zwei kleine Öffnungen 7.7, die zum Eingriff der Rastklauen 1.4 der Grundplatte 1 (vgl. Fig. 1) bestimmt sind.Figure 2 shows a view of the cover plate 7 from the inside. At its upper edge, it has two lugs 7.6, which are intended for engagement in the recesses 1.3 of the base plate 1 (see Fig .. 1). Near the opening 7.5, the lower side wall has two small openings 7.7, which are intended for engagement of the latching claws 1.4 of the base plate 1 (see Fig. 1).

Figur 3 zeigt den Melder im zusammengebauten Zustand, jedoch ohne die haubenförmige Deckplatte. Die Staubschutzhaube 4 ist im oberen Bereich teilweise aufgebrochen dargestellt. Der Melder befindet sich in seiner Ruhe- oder Bereitschaftsstellung. Die eindrückbare Platte 5 stützt sich mit ihrem Unterrand gegen den Nocken 6.2 des walzenförmigen Körpers 6 ab, dessen Anschlagnase 6.4 gegen einen Zapfen der Grundplatte 1 anliegt. Mit ihrem Oberrand hält die Platte 5 deshalb den an seinem linken Ende um einen Drehzapfen schwenkbar gelagerten Hebel 3 gegen die Kraft der das freie Ende des Hebels 3 belastenden Blattfeder 3.3 in der gezeichneten Stellung, in der der Hebel 3 mit seiner abgewandten Seitenfläche die Schaltfahnen 2.21 und 2.31 der Mikroschalter 2.2 und 2.3 in deren federbelasteter Arbeitsstellung, d.h. niedergedrückt hält. Die Fahne 3.2 des Hebels 3 befindet sich außerhalb der Fensteröffnung 7.3 der haubenförmigen Deckplatte 7 (vgl. Fig. 1).Figure 3 shows the detector in the assembled state, but without the hood-shaped cover plate. The dust cover 4 is shown partially broken in the upper area. The detector is in its standby or standby position. The crushable plate 5 is supported with its lower edge against the cam 6.2 of the cylindrical body 6, the stop lug 6.4 rests against a pin of the base plate 1. With its upper edge, therefore, the plate 5 holds the pivotally mounted at its left end about a pivot lever 3 against the force of the free end of the lever 3 loading leaf spring 3.3 in the position shown, in which the lever 3 with its opposite side surface, the switching flags 2.21 and 2.31 of the microswitches 2.2 and 2.3 in their spring-loaded working position, ie keeps depressed. The flag 3.2 of the lever 3 is located outside the window opening 7.3 of the hood-shaped cover plate 7 (see Fig. 1).

Figur 4 ist ein Blick auf die Staubschutzhaube 4 von innen. Ein einstückig angeformter Drehzapfen 4.6 für die Lagerbüchse 3.1 des Hebels 3 (vgl. Fig. 3) hat eine Rastnase 4.61, die diesen Hebel auf dem Drehzapfen 4.6 sichert. Die Durchbrüche 4.3 haben gestufte, erhabene Ränder 4.31, die dazu bestimmt sind, in die korrespondierenden, buchsenförmigen Umrandungen der Montagelöcher 1.7 der Grundplatte 1 (vgl. Fig. 1) einzugreifen um das Eindringen von Staub und Wasser in den von der Staubschutzhaube 4 umgebenen Innenraum des Melders zu verhindern. Hohlzapfen 4.7 dienen als Niederhalter für die Schaltungsplatine 2 in Fig. 1. Lichtleitzapfen 4.8 überbrücken die Distanz zwischen SMD-LEDs (nicht dargestellt) auf der Schaltungsplatine 2 und Durchbrüchen in der fensterförmigen Vertiefung 7.1 der Deckplatte (vgl. Fig. 1). An der Innenseite des Oberrandes ist das Gegenlager 4.9 für den festgesetzten Schenkel der Blattfeder 3.3 in Fig. 3 zu erkennen.Figure 4 is a view of the dust cover 4 from the inside. An integrally molded pivot 4.6 for the bearing bush 3.1 of the lever 3 (see Fig. 3) has a locking lug 4.61, which secures this lever on the pivot 4.6. The apertures 4.3 have stepped, raised edges 4.31, which are intended to engage in the corresponding, bush-shaped edges of the mounting holes 1.7 of the base plate 1 (see Fig. 1) to the ingress of dust and water in the surrounded by the dust cover 4 interior to prevent the detector. Hollow pins 4.7 serve as hold-downs for the circuit board 2 in Fig. 1. Light guide 4.8 bridge the distance between SMD LEDs (not shown) on the circuit board 2 and openings in the window-shaped recess 7.1 of the cover plate (see Fig .. 1). On the inside of the upper edge of the abutment is 4.9 for the fixed leg of the leaf spring 3.3 in Fig. 3 can be seen.

Figur 5 zeigt den Melder in der gleichen Darstellung wie Fig. 3, jedoch im Alarmzustand. Die in diesem Fall aus einem elastischen Kunststoff bestehende Platte 5 wurde eingedrückt und ist dementsprechend konkav gewölbt. Ihr Unterrand ist daher hinter den Nocken 6.2 des walzenförmigen Körpers 6 gelangt und von dem Hebel 3 unter der Wirkung der Blattfeder 3.3 in die gezeichnete Stellung nach unten verschoben worden. Der den Mikroschaltern 2.2 und 2.3 zugewandte Seitenrand des Hebels 3 hat dabei die Schaltfahnen 2.21 und 2.31 der Mikroschalter 2.2 und 2.3 freigegeben, so dass letztere in ihre Ruhestellung umgeschaltet haben. Die Schaltung auf der Schaltungsplatine 2 verarbeitet diese Änderung der Schaltzustände der Mikroschalter 2.2 und 2.3 in ein entsprechendes Alarmsignal an den externen Klemmen 2.4 (vgl. Fig. 1) . Die Fahne 3.2 des Hebels 3 ist nun im Ausschnitt der Fensteröffnung 7.3 der Deckplatte 7 (vgl. Fig. 1) sichtbar.FIG. 5 shows the detector in the same illustration as FIG. 3, but in the alarm state. The existing in this case of an elastic plastic plate 5 has been pressed and is correspondingly concave. Their lower edge is therefore behind the cams 6.2 of the cylindrical body 6 passes and has been moved by the lever 3 under the action of the leaf spring 3.3 in the position shown down. The microswitches 2.2 and 2.3 facing side edge of the lever 3 has the switching flags 2.21 and 2.31 of the microswitches 2.2 and 2.3 released, so that the latter have switched to their rest position. The circuit on the circuit board 2 processes this change in the switching states of the microswitches 2.2 and 2.3 into a corresponding alarm signal at the external terminals 2.4 (see Fig. 1). The flag 3.2 of the lever 3 is now visible in the cutout of the window opening 7.3 of the cover plate 7 (see Fig. 1).

Figur 6 zeigt die gleiche Ansicht des Melders wie Fig. 5, jedoch ist in diesem Fall der Alarmzustand nicht durch Eindrücken der Platte 5 sondern zum Zweck eines Funktionstests oder Probealarms durch Drehung des walzenförmigen Körpers 6 mittels des schlüsselförmigen Werkzeugs 8 erzeugt worden. Unter der Wirkung des federbelasteten Hebels 3 hat sich die Platte 5 nach unten verschoben, liegt aber nach Drehung des walzenförmigen Körpers 6 um etwa 90° im Uhrzeigersinn mit ihrem Unterrand wie zuvor auf dem Nocken 6.2 des walzenförmigen Körpers 6 auf. Durch Drehung des schlüsselförmigen Werkzeuges 8 entgegen dem Uhrzeigersinn kann die Platte 5 wieder in den in Fig. 3 dargestellten Ruhe- oder Bereitschaftszustand zurückgebracht werden.FIG. 6 shows the same view of the detector as FIG. 5, but in this case the alarm condition has not been generated by depressing the plate 5 but for the purpose of a functional test or trial alarm by rotation of the cylindrical body 6 by means of the key-shaped tool 8. Under the action of the spring-loaded lever 3, the plate 5 has moved downwards, but is after rotation of the cylindrical body 6 by about 90 ° clockwise with its lower edge as before on the cam 6.2 of the cylindrical body 6. By rotating the wrench-shaped tool 8 in the counterclockwise direction, the plate 5 can be returned to the rest or standby state shown in FIG.

In entsprechender Weise wird der Melder aus dem Alarmzustand (vgl. Fig. 5) zurück in den Ruhezustand gebracht. Nach Drehung des schlüsselförmigen Werkzeugs 8 in die in Fig. 6 gezeigte Stellung springt die Platte 5 aus der konkaven Form, in der ihr Unterrand in der Freistellung hinter den Nocken 6.2 auf dem walzenförmigen Körper 6 aufliegt, in die Planlage zurück, so dass nun ihr Unterrand wieder auf dem Nocken 6.2 des walzenförmigen Körpers 6 aufliegt und durch Drehung des letzteren die Platte 5 nach oben in ihre den Hebel 3 in der Ruhestellung haltenden Stellung verschoben wird.In a corresponding manner, the detector is returned from the alarm state (see Fig. 5) back to the idle state. After rotation of the wrench-shaped tool 8 in the position shown in Fig. 6, the plate 5 jumps from the concave shape in which its lower edge in the release behind the cam 6.2 rests on the cylindrical body 6, back to the flat position, so now her Lower edge rests again on the cam 6.2 of the cylindrical body 6 and by rotation of the latter, the plate 5 is moved upwards into its position holding the lever 3 in the rest position.

Sofern die Platte 5 nicht aus Kunststoff besteht sondern eine zerstörbare Glasscheibe ist, wird in der in Figur 6 gezeichneten Stellung des walzenförmigen Körpers 6 nach Entfernung der zerstörten Scheibe eine neue Scheibe eingesetzt und durch Drehung des schlüsselförmigen Werkzeugs 8 in ihre obere eingespannte Stellung zurückgebracht.If the plate 5 is not made of plastic but is a destructible glass, a new disc is used in the drawn in Figure 6 position of the cylindrical body 6 after removal of the destroyed disc and returned by rotation of the key-shaped tool 8 in its upper clamped position.

Mindestens zum Auswechseln einer zerstörten Glasscheibe muss das Meldergehäuse durch Abnehmen der haubenförmigen Deckplatte 7 geöffnet werden. Dies ist schematisch in Figur 7 dargestellt. Das schlüsselförmige Werkzeug 8 hat zwei Nasen 8.3 im Abstand der Öffnungen 7.7 in dem unteren Seitenrand der haubenförmigen Deckplatte 7 (vgl. Fig. 2). Mittels dieser Nasen werden gemäß Figur 7 die Rastklauen 1.4 der Grundplatte 1 aus den Öffnungen 7.7 zurück nach innen gedrängt, so dass sich die Deckplatte 7 mit ihrem Unterrand von der Grundplatte 1 abschwenken und anschließend unter leichtem Anheben abnehmen lässt, wobei die Nasen 7.6 der Deckplatte 7 von den Ausnehmungen 1.3 am oberen Rand der Grundplatte 1 (vgl. Fig. 1) freikommen.At least to replace a destroyed glass pane, the detector housing must be opened by removing the hood-shaped cover plate 7. This is shown schematically in FIG. The key-shaped tool 8 has two lugs 8.3 spaced from the openings 7.7 in the lower side edge of the hood-shaped cover plate 7 (see Fig. 2). 7, the latching claws 1.4 of the base plate 1 are pushed back inwards out of the openings 7. 7, so that the cover plate 7 can pivot away from the base plate 1 with its lower edge and then be removed with slight lifting, the lugs 7.6 of the cover plate 7 of the recesses 1.3 at the top Edge of the base plate 1 (see Fig. 1) free.

Claims (14)

Manueller Gefahrenmelder, mit einem Gehäuse aus einer Grundplatte (1) und einer haubenförmigen Deckplatte (7), die mindestens eine Fensteröffnung (7.2) hat, in der eine eindrückbare rechteckige Platte (5) sitzt, die in Wirkverbindung mit mindestens einem Schalter (2.2, 2.3) steht, der bei und nach dem Eindrücken der Platte (5) dauerhaft seinen Schaltzustand wechselt, dadurch gekennzeichnet, dass die Platte (5) im Ruhezustand des Melders mit einem ihrer Ränder einen um eine zu der Grundplatte (1) rechtwinklige Achse schwenkbaren einarmigen Hebel (3) entgegen der Kraft mindestens einer Feder (3.3) in seiner Ruhelage hält, dass der Hebel (3) in Wirkverbindung mit dem Schalter (2.2, 2.3) steht, dass die Platte (5) mit ihrem gegenüberliegenden Rand gegen einen Nocken (6.2) eines walzenförmigen Körpers (6) anliegt, der um eine zur Grundplatte (1) rechtwinkelige Achse drehbar ist und dass der walzenförmige Körper (6) in eine Stellung drehbar ist, in der der Nocken (6.2) außer Eingriff mit dem Rand der Platte (5) kommt, wodurch der federbelastete Hebel (3) in seine ausgelöste oder Alarmstellung schwenkt.Manual danger detector, comprising a housing of a base plate (1) and a hood-shaped cover plate (7), which has at least one window opening (7.2) in which a depressible rectangular plate (5) sits, which is in operative connection with at least one switch (2.2, 2.3), which permanently changes its switching state during and after pressing in of the plate (5), characterized in that the plate (5) in the resting state of the detector with one of its edges a one-arm pivoting about an axis perpendicular to the base plate (1) Lever (3) against the force of at least one spring (3.3) holds in its rest position that the lever (3) is in operative connection with the switch (2.2, 2.3) that the plate (5) with its opposite edge against a cam ( 6.2) abuts a cylindrical body (6) which is rotatable about an axis perpendicular to the base plate (1) axis and that the cylindrical body (6) is rotatable in a position in which the cam (6.2) except one handle comes with the edge of the plate (5), whereby the spring-loaded lever (3) pivots in its triggered or alarm position. Gefahrenmelder nach Anspruch 1, dadurch gekennzeichnet, dass der walzenförmige Körper (6) durch eine Öffnung (7.5) der haubenförmigen Deckplatte (7) hindurch mittels eines schlüsselartigen Werkzeugs (8) drehbar ist.Hazard detector according to claim 1, characterized in that the cylindrical body (6) through an opening (7.5) of the hood-shaped cover plate (7) is rotatable by means of a key-like tool (8). Gefahrenmelder nach Anspruch 1, dadurch gekennzeichnet, dass die haubenförmige Deckplatte (7) eine verschließbare Öffnung (7.5) hat, über welche ein schlüsselartiges Werkzeug (8) zum Drehen des walzenförmigen Körpers (6) einführbar ist.Hazard detector according to claim 1, characterized in that the hood-shaped cover plate (7) has a closable opening (7.5), via which a key-like tool (8) for rotating the roller-shaped Body (6) is insertable. Gefahrenmelder nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Platte (5) an ihren beiden freien Längsrändern verschiebbar geführt ist.Hazard detector according to one of claims 1 to 3, characterized in that the plate (5) is displaceably guided at its two free longitudinal edges. Gefahrenmelder nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Platte (5) sich mit ihren beiden freien Längsrändern auf einer Staubschutzhaube (4) abstützt, die mittig eine Vertiefung (4.5) hat, in welche die Platte eindrückbar ist.Hazard detector according to one of claims 1 to 4, characterized in that the plate (5) with its two free longitudinal edges on a dust cover (4) is supported, which has a recess (4.5) in the center, in which the plate is pressed. Gefahrenmelder nach Anspruch 5, dadurch gekennzeichnet, dass die Platte (5) im Bereich desjenigen Randes, gegen den der schwenkbare Hebel (3) anliegt, mittig einen sich gegen die darunter liegende Staubschutzhaube (4) abstützenden Zapfen hat.Hazard detector according to claim 5, characterized in that the plate (5) in the region of that edge against which the pivotable lever (3) rests, in the middle has a against the underlying dust cover (4) supporting pins. Gefahrenmelder nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Hebel (3) eine Fahne (3.2) hat, die im Ruhezustand des Melders außerhalb der Fensteröffnung (7.2) und im ausgelösten Zustand innerhalb dieser Fensteröffnung (7.2) liegt.Hazard detector according to one of claims 1 to 6, characterized in that the lever (3) has a flag (3.2), which is in the idle state of the detector outside the window opening (7.2) and in the triggered state within this window opening (7.2). Gefahrenmelder nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Schwenkachse des Hebels (3) sich nahe einer Ecke der Grundplatte (1) befindet.Hazard detector according to one of claims 1 to 7, characterized in that the pivot axis of the lever (3) is located near a corner of the base plate (1). Gefahrenmelder nach Anspruch 8, dadurch gekennzeichnet, dass die den Hebel (3) in seine Arbeitslage belastende Feder (3.3) am freien Ende des Hebels (3) angreift.Hazard detector according to claim 8, characterized in that the lever (3) in its working position loading spring (3.3) engages the free end of the lever (3). Gefahrenmelder nach einem der Ansprüche 5 bis 9, dadurch gekennzeichnet, dass die Grundplatte (1) zwei Löcher (1.2) zur Schraubbefestigung des Gefahrenmelders hat und dass die Staubschutzhaube (4) korrespondierende versenkte Durchbrüche (4.3) hat, die staubdicht mit den Befestigungslöchern (1.2) fluchten.Hazard detector according to one of claims 5 to 9, characterized in that the base plate (1) has two holes (1.2) for screw fastening the hazard alarm has and that the dust cover (4) has corresponding recessed openings (4.3), the dustproof with the mounting holes (1.2) are aligned. Gefahrenmelder nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die haubenförmige Deckplatte (7) mit ihrem einen Rand in den korrespondierenden Rand der Grundplatte (1) einhängbar ist und dass die Grundplatte (1) im Bereich ihres gegenüberliegenden Randes Rastklauen (1.4) hat, die in korrespondierende Öffnungen (7.7) in der benachbarten Seitenfläche der haubenförmigen Deckplatte (7) eingreifen.Hazard detector according to one of claims 1 to 10, characterized in that the hood-shaped cover plate (7) with its one edge in the corresponding edge of the base plate (1) can be suspended and that the base plate (1) in the region of its opposite edge latching claws (1.4) has, which engage in corresponding openings (7.7) in the adjacent side surface of the hood-shaped cover plate (7). Gefahrenmelder nach Anspruch 11, dadurch gekennzeichnet, dass das schlüsselförmige Werkzeug (8) zwei Nasen (8.3) im Abstand der Öffnungen (7.7) in der Seitenfläche der haubenförmigen Deckplatte (7) hat.Hazard detector according to claim 11, characterized in that the key-shaped tool (8) has two lugs (8.3) spaced from the openings (7.7) in the side surface of the hood-shaped cover plate (7). Gefahrenmelder nach Anspruch 11, dadurch gekennzeichnet, dass der walzenförmige Körper (6) in eine Stellung drehbar ist, in der ein Nocken die Seitenwand der haubenförmigen Deckplatte (7) so weit verformt, dass die Rastklauen (1.4) außer Eingriff mit den Öffnungen (7.7) in dieser Seitenfläche kommen.Hazard detector according to claim 11, characterized in that the cylindrical body (6) is rotatable in a position in which a cam deforms the side wall of the hood-shaped cover plate (7) so far that the latching claws (1.4) are disengaged from the openings (7.7 ) come in this side area. Gefahrenmelder nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass der walzenförmige Körper (6) in derjenigen Stellung, in der sein Nocken (7.4) die Platte (5) in der Ruhelage hält, lösbar verrastet ist.Hazard detector according to one of claims 1 to 13, characterized in that the roller-shaped body (6) in the position in which its cam (7.4) holds the plate (5) in the rest position, is detachably latched.
EP05016967A 2004-09-02 2005-08-04 Manual hazard warning device Not-in-force EP1632921B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004042573A DE102004042573B3 (en) 2004-09-02 2004-09-02 Fire alarm trigger switch has countersunk frame around cover plate linked to lever-action switch and test spindle

Publications (3)

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EP1632921A2 true EP1632921A2 (en) 2006-03-08
EP1632921A3 EP1632921A3 (en) 2007-07-04
EP1632921B1 EP1632921B1 (en) 2009-11-11

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Application Number Title Priority Date Filing Date
EP05016967A Not-in-force EP1632921B1 (en) 2004-09-02 2005-08-04 Manual hazard warning device

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EP (1) EP1632921B1 (en)
AT (1) ATE448534T1 (en)
DE (2) DE102004042573B3 (en)
ES (1) ES2335672T3 (en)

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EP1988525A3 (en) * 2007-04-30 2010-01-06 Robert Bosch GmbH Notification device with test mechanism and special key for actuating test mechanism
US9200604B2 (en) 2007-02-23 2015-12-01 Robert Bosch Gmbh Fuel injector having press-fitting structures

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DE202009016637U1 (en) 2009-12-09 2010-04-29 Bombardier Transportation Gmbh Emergency operating device for a vehicle, in particular a rail vehicle
EP2375390B1 (en) 2010-04-05 2013-03-13 Honeywell International Inc. Type A dual action extinguisher release call point
FR2966964B1 (en) * 2010-10-28 2012-11-30 Cooper Technologies Co FIRE ALARM DEVICE
DE102011100036B4 (en) * 2011-04-29 2018-11-29 Assa Abloy Sicherheitstechnik Gmbh A method of operating an emergency button and using a display of an emergency button
DE102019008302A1 (en) * 2019-11-29 2021-06-02 Diehl Ako Stiftung & Co. Kg Emergency switchgear

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US9200604B2 (en) 2007-02-23 2015-12-01 Robert Bosch Gmbh Fuel injector having press-fitting structures
EP1965399A1 (en) * 2007-03-01 2008-09-03 Siemens Schweiz AG Emergency button for a danger detection system
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EP1988525A3 (en) * 2007-04-30 2010-01-06 Robert Bosch GmbH Notification device with test mechanism and special key for actuating test mechanism

Also Published As

Publication number Publication date
EP1632921A3 (en) 2007-07-04
ES2335672T3 (en) 2010-03-31
ATE448534T1 (en) 2009-11-15
EP1632921B1 (en) 2009-11-11
DE102004042573B3 (en) 2005-10-13
DE502005008469D1 (en) 2009-12-24

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