EP2093735A1 - Commutateur d'urgence doté d'un élément de commutation bistable - Google Patents

Commutateur d'urgence doté d'un élément de commutation bistable Download PDF

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Publication number
EP2093735A1
EP2093735A1 EP08101740A EP08101740A EP2093735A1 EP 2093735 A1 EP2093735 A1 EP 2093735A1 EP 08101740 A EP08101740 A EP 08101740A EP 08101740 A EP08101740 A EP 08101740A EP 2093735 A1 EP2093735 A1 EP 2093735A1
Authority
EP
European Patent Office
Prior art keywords
spatial state
switching element
emergency call
spatial
triggering
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.)
Withdrawn
Application number
EP08101740A
Other languages
German (de)
English (en)
Inventor
René Lange
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.)
Siemens AG
Original Assignee
Siemens AG
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
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP08101740A priority Critical patent/EP2093735A1/fr
Priority to CN2009801057748A priority patent/CN101952864A/zh
Priority to PCT/EP2009/051877 priority patent/WO2009103712A1/fr
Publication of EP2093735A1 publication Critical patent/EP2093735A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • 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
    • 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
    • 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
    • H01H2003/0246—Resetting of bistable emergency operating part by rotating itself or an accessory
    • 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
    • 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
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements

Definitions

  • the present invention relates to the technical field of danger detection technology.
  • the present invention relates to a device for manually triggering a danger message.
  • Such tripping devices are also known as emergency call or, as they are mostly used in connection with a fire, referred to as manual call points.
  • the present invention further relates to a method for manually triggering a danger message using the apparatus described above.
  • Emergency call switches are used in safety networks and serve to generate an alarm in the event of an emergency, such as an emergency call. of a fire or robbery etc. and can be roughly divided into automatic and non-automatic emergency call buttons.
  • the range of applications of manually operated emergency call switch is very large due to the widespread use, ranging from office applications to use with strong environmental and environmental impact, such. B. in very humid or pollutant environment. Under all of these operating environments, the manually operable emergency call switches must operate properly, as any unnecessary false alarms are prone to expensive use by security forces such as security personnel. Police or fire department can lead.
  • the object of the invention is to improve the procedure of triggering a danger message in such a way that an operator is automatically informed about the success of the triggering process.
  • an apparatus for manually triggering a danger message has a chassis and a switching element which is arranged within the chassis. That the switching element is a one-piece element. Furthermore, the switching element is designed such that it can be converted by a tripping movement from a first spatial state into a second spatial state, wherein (a) the first spatial state is indicative of the fact that no danger message was triggered with the device, and (b) the second spatial state is indicative of the fact that the device has already triggered a danger message.
  • the described device which is also referred to as emergency call switch in the following, is based on the finding that the use of a bistable switching element for an operator in the triggering of a danger message produces a clearly perceptible and clearly defined switching effect, which makes the exact switching point of the emergency call switch noticeable leaves. By this clear switching behavior can thus be ensured with high probability that a faultless alarm triggering is also recognized correctly by the operator.
  • the described emergency call switch can be realized in an advantageous manner without vertically movable components.
  • the mechanical effort for the realization of the emergency call button can also be kept very small by the use of only a few moving parts.
  • the use of only a very few moving parts has the advantage that the emergency call switch can be realized in a simple manner with a high density against harmful environmental influences such as dirt and water. Accordingly, there is nothing to prevent the use of the emergency call switch described in humid and / or heavily dusty rooms.
  • the well-known standard IP65 which calls for the functionality of the emergency call switch even in wet and dirty environmental conditions, can thus be met in a simple manner.
  • This can also contribute a special sealing element, which is arranged between a cover of the emergency call switch and the chassis. As a result, it can be prevented, for example, that moist or warm air penetrates into the emergency call button and impair its functionality.
  • the emergency call switch described can thus be used universally.
  • the switching element is mechanically relaxed in the first spatial state and is in the second spatial state under a certain mechanical stress. This has the advantage that accidental self-triggering of the emergency call switch described can be easily prevented.
  • the force required to trigger an alarm message or to transfer the switching element from the first to the second spatial state is then typically less than the force required to return the switching element from the second spatial state to the first spatial state.
  • Such a reset is required for example after an alarm triggering.
  • the switching element is a snap element, which has a predetermined adjustment path for a transition from the first spatial state to the second spatial state.
  • a first movement of the snap element along a first part of the adjustment path up to a transition point requires at least some effort.
  • the two parts of the adjustment are separated by a transition point. If this transition point is only slightly exceeded by a manual direct or indirect force on the snap element, then an automatic further movement of the snap element takes place up to the stable second spatial state.
  • the travel can be different for different areas or for different locations of the snap element. However, for one and the same location the adjustment is precisely defined.
  • bistable snap element has the advantage that it can not be held in a particular intermediate position when performing a triggering operation by an operator.
  • the triggering process can thus not be interrupted, so that always a flawless triggering a danger message can be guaranteed. This applies to intentional as well as accidental interruptions of the tripping process.
  • a certain activation energy is required to convert the described bistable snap element from the first spatial state into the second spatial state.
  • the activation energy results from the integral of the force to be applied over the adjustment path from the first spatial state to the above-described transition point.
  • the snap element is designed such that it generates a characteristic noise at a transition point from a transition from the first spatial state to the second spatial state.
  • the generation of a characteristic noise has the advantage that an operator is not only informed by a tactile perception but also acoustically on the triggering of an alarm message.
  • the characteristic noise may be, for example, a crackling sound. This means that an alarm triggering is accompanied by an audible click. This can provide an additional assurance to an operator that he has actually triggered an alarm.
  • the snap element has a round disc with a side wall pulled down at the edge of the disc.
  • the snap element can be made, for example, from the material tinplate.
  • this material is not a spring material in the strict sense. It's different from one typical spring material in a significant way by a much lower elasticity.
  • the round disc may have a certain bulge. If the switching element formed as a snap element is in the first spatial state, then the disc is bulged in a first direction. If the switching element formed as a snap element is in the second spatial state, then the disc is bulged in a second direction opposite to the first direction.
  • the round disc described can also be regarded as a bistable membrane, which can be present in two different spatial states, which are each characterized by a corresponding bulging.
  • the snap element can then also be referred to as a membrane element.
  • the realization of the snap element by means of the round disc described with a pulled down side wall has the advantage that the switching element can be a flat component. This not only the switching insert of the emergency call but the entire emergency call can be realized in a flat design and / or in a visually very appealing design.
  • the device additionally has an electrical switching device which cooperates with the switching element such that a first switch position is assigned to the first spatial state of the switching element and a second switch position is assigned to the second spatial state of the switching element.
  • the described electrical switching device which is coupled in a suitable manner with the switching element can the state of the emergency call switch is signaled via an electrical line on to an alarm device.
  • the electrical switching device may have one or more electrical switches, which are formed, for example, as a key switch.
  • the electrical switching device can also be realized by means of other switching devices such as a Hall sensor.
  • the Hall sensor can detect any magnetic field of the switching element or a magnetic field of a magnet coupled to the switching element.
  • the device additionally has a return mechanism, which is set up in such a way that the switching element can be converted from the second spatial state into the first spatial state after triggering of a danger message.
  • the return mechanism may be, for example, a reset lever, which cooperates in a suitable manner with a wedge-shaped restoring element.
  • the switching or the snap element When reset, the switching or the snap element can spring back into the mechanically unstressed position.
  • the maximum path difference between the mechanically relaxed normal position and the mechanically biased release position may be, for example, about 2 mm.
  • the return mechanism is designed such that a provision of the switching element from the second spatial state in the first spatial state is feasible only with a special tool.
  • This has the advantage that only specially authorized persons can make a provision of the emergency call button. This can after the triggering of a danger message by a hazard detection system, which has several emergency call, reliably detected, from which or by which special emergency call the danger message was triggered.
  • a group of persons could be limited, who could be responsible for the abusive triggering.
  • the device additionally comprises a frangible element, which is arranged on the chassis and which must be destroyed by an operator before a danger message can be triggered.
  • the fragile element may be a glass sheet, which protects in a known manner the emergency call switch described against an abusive triggering of a danger message.
  • the emergency call button provided with a frangible element is also referred to as non-resettable. This means that a provision can typically be made only by opening the housing and by inserting a new glass plate. The opening of the housing can only be possible by a special tool, such as a key. This fulfills the statutory requirement EN 54-11 relevant for emergency call switches.
  • the emergency call switch can of course also be designed as a "resettable" (resetable) emergency call button.
  • a provision can be made, for example by the above-described return mechanism preferably without opening the housing of the emergency call button.
  • the device additionally comprises a test trigger element which can be introduced through an opening of the chassis between the frangible element and the switching element and which is designed such that without damage to the fragile element, the switching element from the first spatial state in the second spatial state is feasible.
  • the test triggering element is a special tool. This has the advantage that only specially authorized persons can carry out a test release. An improper triggering of the emergency call switch is thus precluded in so far as a person responsible for an abusive triggering can be prevented from abusive triggering by the necessary destruction of the fragile element.
  • the special tool may be, for example, a key or an element with a predetermined contour that interacts with a complementary contour of a corresponding test triggering mechanism.
  • the device additionally has an optical display device for displaying the information as to whether a danger message has been triggered.
  • an optical display device for displaying the information as to whether a danger message has been triggered.
  • the optical display direction has a transparent and structured alarm display element which can be brought into mechanical engagement with an optical indicator element depending on the spatial state of the switching element, so that the visual appearance of the alarm display element changes for an operator.
  • the alarm display element may have, for example, on its underside at least one optical prism, by which the beam path of an observation light is deflected in such a way that an operator sees the indicator element substantially from the side.
  • different partial regions of the indicator element are thus visible for a user operable to observe the alarm indicator element.
  • the state of the entire emergency call switch can be visualized by a corresponding coloring of the indicator element.
  • Optoelectronic display elements such as light emitting diodes are not essential
  • a method for manually triggering a danger message by means of a device of the type described above comprises transferring a one-piece switching element by means of a tripping movement from a first spatial state into a second spatial state, wherein (a) the first spatial state is indicative that no danger message has been triggered with the device, and (b) the second spatial state is indicative that already triggered a danger message with the device.
  • the method described is also based on the finding that the use of a bistable switching element in the triggering of a danger message produces a clearly perceptible switching effect which can be tactually perceived by the operator. This clear switching behavior can thus be ensured with high probability that a faultless alarm triggering is detected by the operator.
  • FIG. 1a shows in a perspective view a resettable emergency call switch according to an embodiment of the invention.
  • FIG. 1b shows the in FIG. 1a illustrated emergency call button in an exploded view.
  • FIG. 2 shows a snap element for use in an emergency call switch according to the invention, which snap element has a round disc with a pulled down at the edge of the disc side wall.
  • FIG. 3a shows after a alarm release a provision of the in the FIGS. 1a and 1b shown emergency call switch.
  • FIG. 3b shows a starting position at the in FIG. 3a illustrated provision.
  • Figure 3c shows an end position at the in FIG. 3a illustrated provision.
  • FIG. 4 illustrates opening a non-resettable emergency call button using a special key.
  • FIG. 5 shows in a perspective exploded view a test release for a non-resettable emergency call button.
  • FIGS. 6a, 6b and 6c illustrate the function of an optical alarm indicator for displaying the information as to whether a hazard message has already been triggered.
  • Figure 7a shows in a cross-sectional view of an emergency call button with a snap element and an optical alarm display.
  • FIG. 7b shows the in Figure 7a illustrated emergency call switch in a plan view.
  • FIG. 7c shows in an enlarged view the alarm display of in Figure 7a shown emergency call switch in a state in which no alarm is signaled.
  • FIG. 7d shows in an enlarged view the alarm display of in Figure 7a shown emergency call switch in a state in which an operator is already signaled an alarm triggered.
  • FIG. 1a shows a perspective view of an emergency call switch 100th
  • FIG. 1b shows the emergency call switch 100 in an exploded view.
  • the illustrated emergency call switch 100 is a resettable emergency call switch which, after an alarm has been triggered, is returned to its original state by an authorized person can. For this purpose, opening the emergency call switch 100 and in particular replacement of a glass pane is not required.
  • the emergency call switch 100 described here has a surface-mounted housing 102. On the surface-mounted housing 102 a plurality of latching elements 102a are formed. Within the surface-mount housing 102 is an inner chassis 106. The chassis 106 has a plurality of latching noses 106a, so that the chassis 106 can be fixed during the assembly of the emergency call switch 100 with a simple snap-action.
  • the described emergency call switch 100 also has a cover 104.
  • the cover 104 can also be fixed to the surface-mount housing 102 using the latch members 102a by a simple snap action.
  • the cover 104 has an opening 104a through which the operating intervention takes place when the emergency call switch 100 is triggered.
  • a snap element 110 is arranged, which is transferred at a triggering of an alarm message from a first spatial state to a second spatial state.
  • the snap element 110 is a bistable switching element 110, which is mechanically relaxed in the first spatial state and is in the second spatial state under a certain mechanical stress.
  • the snap element 110 is further configured to generate a characteristic noise at a transition point from a transition from the first spatial state to the second spatial state. This noise can be a click, which signals an alarm triggering triggering operator in an acoustic way, a successful alarm triggering.
  • Trigger element 130 Between the snap element 110 and the cover 104 is located immediately below the cover 104 a Trigger element 130, which is pressed when triggering a danger message by an operator.
  • the triggering element 130 has markings which are intended to facilitate a reliable insertion of the triggering element 130 in the event of danger.
  • a frame 135 Below the triggering element 130, a frame 135 is provided. In these, the trigger element 130 is inserted accurately positioned during assembly of the emergency call switch 100.
  • a display element 160 is arranged between the frame 135 and the snap element 110 is still a display element 160 is arranged.
  • the display element 160 is used, as will be explained in more detail below, making the information visible as to whether the emergency call switch 100 has already triggered a danger message.
  • the emergency call switch 100 is a resettable emergency call switch.
  • an opening 106b is further provided in the chassis 106, through which a return tool 120 formed as a key can be inserted.
  • the provision of the emergency call switch 100 d. H. the transfer of the snap element 110 from the second spatial state to the first spatial state, by means of a rotation of the inserted into the opening 106 b key 120.
  • a beard 120 a of the key 120 displaces a wedge-like element 122, which in turn a reset lever 124 from the side presses on the snap element 110.
  • the snap element 110 is energetically cheaper, d. H. transferred with a lower mechanical stress, first spatial state.
  • the triggering of the emergency call switch 100 is carried out by a vertical pressing an operator on the trigger element 130. This is then deflected and immediately actuates the snap member 110, which jumps immediately with an audible striking click sound into its cocked position inside. According to the embodiment shown here, it sets a path of about 2 mm back. The needed for it Release force is 25N +/- 3N and thus complies with the legal requirement EN 54-11.
  • the snap element 110 in turn actuates one in the FIGS. 1a and 1b switch, not shown, which the alarm message to a likewise in the FIGS. 1a and 1b not shown electrical unit fateer immunity. This electrical unit then forwards the alarm signal to further peripheral units and / or to a control center of an alarm reporting system.
  • the alarm indicator 160 is likewise activated immediately and the indication alarm is displayed on the emergency call switch 100 in a way which is easy to interpret.
  • the provision of the alarm or the emergency call switch 100 is carried out with the special tool designed as a key 120.
  • the key 120 With the insertion of the key 120 in the opening 106b and a subsequent rotation by 90 ° via the wedge-like element 122 and the reset lever 124, the snap element 110 in his Starting position returned.
  • a restoring force of approximately 15 N is sufficient to bring the snap element 110, which remains under tension in the "alarm" state, back into its starting position.
  • bistable snap element 110 is not a spring in the classical sense.
  • the bistable snap 110 may be referred to as a metallic membrane.
  • the first spatial state of the membrane is characterized by a first bulging of the membrane and the second spatial state by a second bulge opposite the first bulging.
  • the snap element 110 there are two defined states for the snap element 110. In the first normal state, the membrane is relaxed and has a bulge to the outside. The snap element 110 is ready for an alarm. In the second state, the membrane is under tension and has a bulging inward.
  • FIG. 2 shows the snap element, which is now designated by the reference numeral 210.
  • the snap element 210 is a circular disk 212 having a side wall 214 pulled downwards along the edge 212b of the disk 212.
  • the snap element 210 has a bulge 212a.
  • the bulge 212a points up or down.
  • the described snap element 210 thus constitutes a cover-like metal part, which has on its side wall 214 slots 214 a, which in FIG. 2 extend in the vertical direction to the edge 212b.
  • the snap element 210 can be made, for example, from tinplate by a suitable cold deformation, so that the bulge 212a results with a precisely defined dimensioning.
  • the bulge 212a is moved inward by approximately 2 mm by a pressure perpendicularly from above onto the snap element 210. This movement can then be coupled with a switching operation of an electrical switch designed, for example, as a pushbutton switch.
  • the described spatial reversal of the bulge 212a occurs abruptly from a defined transition point. This creates by the snap element 210 itself a clearly audible cracking noise. This crackling sound can also acoustically indicate to an operator the correct triggering of an alarm message.
  • the release force of 25N +/- 3N prescribed by the standard 54-11 can be easily adjusted.
  • FIGS. 3a . 3b and 3c illustrate the provision of the emergency call switch 100.
  • FIG. 3a is right above the chassis, which is now provided with the reference numeral 306 shown.
  • Bottom left shows FIG. 3a an enlarged view of the return mechanism.
  • FIG. 3b shows a starting position in which the provision of the snap element 310 has not yet taken place.
  • Figure 3c shows an end position after a successful reset of the snap element 310.
  • the keyed special reset tool 320 is first inserted through the opening 306b of the chassis 306. Subsequently, a rotation of the key 320 by 90 °. This condition is in Figure 3c shown.
  • the special tool 320 is shaped such that it is not possible to return the emergency call switch with an item other than the special tool 320.
  • the requirement of the legal regulation EN 54-11 is met, according to which a provision may only be made by authorized persons who are exclusively in possession of the special tool 320.
  • FIG. 4 illustrates opening a non-resettable emergency call button using a special key.
  • the opening is usually required when a glass pane, not shown, must be replaced, which at an alarm triggering must be taken or pressed.
  • the opening is done by removing the cover 404 of the non-resettable emergency call switch.
  • FIG. 4 only the cover 404 and required for removing the cover from a chassis key 420 shown.
  • the chassis and the components in the chassis such as snap element, wedge-like element and reset lever are not shown. Because these components are already extensively based on the FIGS. 1a, 1b . 2, 3a . 3b and 3c should not be discussed again in detail at this point on these components.
  • the key 420 facing the in FIG. 3 illustrated key 320 a modification.
  • the key 420 in addition to the key bit 420a, with which a provision of the snap element can be performed still has two spaced-apart cam 420b. These cams are used to open the emergency call switch for the replacement of the glass.
  • the cover 404 is removed.
  • the key 420 is then brought to the cover 404 such that the two cams 420n engage in two tool openings 404b of the cover 404.
  • the connections between two locking lugs, not shown, and corresponding locking webs are released and the cover 404 can be removed.
  • the key 420 has a small shape, so that the key can be carried at any time by an operator.
  • the two cams 420b are unique in terms of their shape and spacing, so that it is not possible to open and / or return the emergency call switch with a conventional object other than the key 420 provided.
  • FIG. 5 shows in a perspective exploded view a test release for a non-resettable emergency call switch 500.
  • the emergency call switch 500 has a chassis 506 and a cover 504 on.
  • the chassis 506 are formed as a snap element switching element 510, a wedge-like element 522 and a reset lever 524.
  • a holding element 552 which has a plurality of positioning corners 552 a.
  • a glass pane 550 which must be destroyed when triggering a danger message, is located directly on the holding element 552. The relative position between glass pane 550 and holding element 552 is determined by the positioning corners 552a.
  • FIG. 5 Furthermore, a trained as a key reset tool 520 is shown with which the basis of the FIGS. 3a . 3b and 3c illustrated reset operation can be performed.
  • the test triggering of the emergency call switch 500 takes place by means of a release tool 540, which is inserted along a displacement direction 540a between the snap element 510 and the retaining element 552.
  • the snap element 510 is transferred from the relaxed first spatial state into the tensioned second spatial state.
  • the release tool 540 can be removed again.
  • the snap element 510 can be restored to its initial state by rotation of the key 520 so that the emergency call switch is back to normal.
  • FIG. 6a illustrates the function of an optical alarm indicator for displaying the information as to whether a hazard message has already been triggered.
  • a display element 660 is used, which is mechanically coupled to the snap element. If the snap element is in the first relaxed state, then the display element 660 is in an upper position. This condition is in FIG. 6a shown.
  • the display element 660 has a planar interface on its upper side.
  • the display element 660 is made of an optically transparent material, so that an observer observing the display element 660 along a viewing direction 670a can look into the interior of the display element 660.
  • the display element 660 has a strong structuring.
  • the structuring includes prisms 662 and recesses 664.
  • inner indicator elements 666 and two outer indicator elements 667 are provided, which have a strong contrast in terms of their coloring. Like from the Figures 6a and 6b As can be seen, the left side surface of the inner indicator elements 666 is dark and the right side surface of the inner indicator elements 666 is light. The longer outer indicator elements 667 compared to the inner indicator elements 666 are each transparent in their upper portion. The lower portion of the left outer indicator element 667 has a light color. The lower portion of the right outer indicator element 667 has a dark color.
  • FIG. 6c a light beam emanating from an eye 670 of an observer is totally reflected at the oblique interface of the prism 662.
  • the location of the total reflection is indicated by reference numeral 662a.
  • the observation light beam extends at least approximately horizontally and, depending on the position of the display element 660, strikes different side surfaces of the indicator elements 666, 667.
  • the indicator elements can also have a different color.
  • an observer in the field of view 672b will see a color-structured pattern.
  • the described optical alarm display has the advantage that, for a clear visualization of the state of an emergency call switch apart from the optical display element 660 no additional movable elements are required. In addition, no electrical or optoelectronic components are required in an advantageous manner for the display.
  • FIGS. 7a, 7b 7c and 7d show an emergency call switch 700 with a snap element 710 and an optical alarm indicator.
  • the emergency call switch 700 is shown in a cross-sectional view.
  • the snap element 710 is shown in both states for ease of recognizing the principle of optical alarm indication.
  • the upper state corresponds to the relaxed first state, in which the emergency call switch 700 is ready for the triggering of an alarm message.
  • the lower state corresponds to the tensioned second state which exists after the triggering of an alarm message.
  • FIG. 7b shows the emergency call switch 700 in a plan view.
  • FIG. 7c shows in an enlarged view the alarm display of the emergency call switch 700 in a state in which no alarm is signaled.
  • FIG. 7d shows in an enlarged view the alarm display of the emergency call switch 700 in a state in which an operator is already signaled an alarm triggering.
  • the emergency call switch 700 has a chassis 706 and a cover 704.
  • the switching element 710 formed as a snap element is arranged in the chassis 706.
  • the chassis 706 is also a circuit board 780, which is suitably by means of electrical connection pins 783 with an electrical Terminal 782 is electrically connected.
  • the push-button switch 785 has a plunger 785a which bears against the underside of the snap element 710. The position of the plunger 785a is thus determined by the spatial state of the snap element 710.
  • the spatial state of the snap element 710 determines the position of the switch 785. This position can then be forwarded in a known manner to other peripherals and / or to a control center of a hazard detection system.
  • top view is next to the cover 704 still recognized as a key reset tool 720 to recognize. Furthermore, in FIG. 7b the location of the cutting plane of the Figure 7a shown cross-sectional view indicated by the two letters "AA".
  • a display element 760 made of an optically transparent material is mechanically coupled by means of a coupling element 775 to a central region of the snap element 710.
  • the coupling element 775 is adhesively bonded both to the display element 760 and to the snap element 710.
  • other mounting options such as screwing or riveting are possible.
  • FIGS. 7c and 7d For example, the structure of the display element 760 and the interaction of the structured display element 760 with indicator elements 766 are shown.
  • the optically transparent display element 660 on its upper side on a planar interface.
  • the display element 660 has a strong structuring.
  • the structuring includes prisms 762 and recesses 764.
  • the indicator member 766 does not penetrate into the recess 764.
  • an observer looking at the display element 760 from above will essentially recognize a bright and unstructured area. This is a sign to the observer that no or no alarm message has been triggered with the emergency call switch 700.
  • FIG. 7d shown lower position of the display element 760 penetrates the indicator element 766 in the recess 764 a.
  • an observer looking at the display element 760 from above will recognize a textured surface. This is a sign to the observer that the emergency call switch 700 has already triggered an alarm message.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Push-Button Switches (AREA)
  • Alarm Systems (AREA)
EP08101740A 2008-02-19 2008-02-19 Commutateur d'urgence doté d'un élément de commutation bistable Withdrawn EP2093735A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08101740A EP2093735A1 (fr) 2008-02-19 2008-02-19 Commutateur d'urgence doté d'un élément de commutation bistable
CN2009801057748A CN101952864A (zh) 2008-02-19 2009-02-17 具有双稳态开关元件的紧急呼叫开关
PCT/EP2009/051877 WO2009103712A1 (fr) 2008-02-19 2009-02-17 Commutateur d'appel d'urgence comportant un élément de commutation bistable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08101740A EP2093735A1 (fr) 2008-02-19 2008-02-19 Commutateur d'urgence doté d'un élément de commutation bistable

Publications (1)

Publication Number Publication Date
EP2093735A1 true EP2093735A1 (fr) 2009-08-26

Family

ID=39531297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08101740A Withdrawn EP2093735A1 (fr) 2008-02-19 2008-02-19 Commutateur d'urgence doté d'un élément de commutation bistable

Country Status (3)

Country Link
EP (1) EP2093735A1 (fr)
CN (1) CN101952864A (fr)
WO (1) WO2009103712A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20130399A1 (it) * 2013-07-09 2015-01-10 Autostrade Per L Italia S P A Stazione per la richiesta di soccorso installabile a parete all'interno di un galleria
EP3637382A1 (fr) * 2018-10-12 2020-04-15 Electronic Modular Services Ltd. Dispositif de point d'appel manuel avec capteur

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3636915A (en) * 1968-07-25 1972-01-25 Oak Electro Netics Corp Rotary prism display
US3664047A (en) * 1968-07-25 1972-05-23 Oak Electro Netics Corp Linear prism display
GB1344293A (en) * 1971-05-05 1974-01-16 Kuhnke H Visual signal indicator
GB2024521A (en) 1978-04-11 1980-01-09 Kac Alarm Co Ltd Electrical Switch
EP0510917A2 (fr) * 1991-04-23 1992-10-28 THORN EMI plc Dispositifs de commutation
EP1503390A2 (fr) 2003-07-30 2005-02-02 CQR Security Components Limited Interrupteur d'alarme

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3636915A (en) * 1968-07-25 1972-01-25 Oak Electro Netics Corp Rotary prism display
US3664047A (en) * 1968-07-25 1972-05-23 Oak Electro Netics Corp Linear prism display
GB1344293A (en) * 1971-05-05 1974-01-16 Kuhnke H Visual signal indicator
GB2024521A (en) 1978-04-11 1980-01-09 Kac Alarm Co Ltd Electrical Switch
EP0510917A2 (fr) * 1991-04-23 1992-10-28 THORN EMI plc Dispositifs de commutation
EP1503390A2 (fr) 2003-07-30 2005-02-02 CQR Security Components Limited Interrupteur d'alarme

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20130399A1 (it) * 2013-07-09 2015-01-10 Autostrade Per L Italia S P A Stazione per la richiesta di soccorso installabile a parete all'interno di un galleria
EP3637382A1 (fr) * 2018-10-12 2020-04-15 Electronic Modular Services Ltd. Dispositif de point d'appel manuel avec capteur
WO2020074731A1 (fr) * 2018-10-12 2020-04-16 Electronic Modular Services Ltd. Dispositif de point d'appel manuel avec capteur
US11288947B2 (en) 2018-10-12 2022-03-29 Electronic Modular Services Ltd. Manual call point device with sensor

Also Published As

Publication number Publication date
CN101952864A (zh) 2011-01-19
WO2009103712A1 (fr) 2009-08-27

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