GB2456327A - Manual call point - Google Patents

Manual call point Download PDF

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Publication number
GB2456327A
GB2456327A GB0800494A GB0800494A GB2456327A GB 2456327 A GB2456327 A GB 2456327A GB 0800494 A GB0800494 A GB 0800494A GB 0800494 A GB0800494 A GB 0800494A GB 2456327 A GB2456327 A GB 2456327A
Authority
GB
United Kingdom
Prior art keywords
call point
manual call
cover
display
point according
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
GB0800494A
Other versions
GB2456327B (en
GB0800494D0 (en
Inventor
Yu-Feng Huang
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.)
Everday Tech Co Ltd
Original Assignee
Everday Tech Co Ltd
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 Everday Tech Co Ltd filed Critical Everday Tech Co Ltd
Priority to GB0800494A priority Critical patent/GB2456327B/en
Publication of GB0800494D0 publication Critical patent/GB0800494D0/en
Publication of GB2456327A publication Critical patent/GB2456327A/en
Application granted granted Critical
Publication of GB2456327B publication Critical patent/GB2456327B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • 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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/62—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon manual release of a latch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/002—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards
    • 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
    • H01H3/20—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling
    • 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
    • H01H9/18—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
    • H01H9/182—Illumination of the symbols or distinguishing marks

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Audible And Visible Signals (AREA)

Abstract

A manual call point includes a housing, a display element and an elastic element. The housing has a display opening and an insertion hole. The housing is provided with an operating panel and a switch. The operating panel covers the display opening. The switch is provided on the bottom of housing. The display element is pivoted near the periphery of the display opening. The display element has a shining portion, a stopping portion and a pressing portion. The shining portion abuts against one end of the operating panel. An elastic element is provided in the housing and connected to the display element. The distal end of an insertion plate of a reset key has a slope. The slope abuts against the stopping portion of the display element. Thereby, with the pressing portion of the display element pressing the switch, the switch can be activated more securely. Thus, it is able to transmit a warning signal continuously and also transmit it to a fire-fighting switchboard. The shining portion may be a visual alarm portion or a kind of visual indicator or visible indicator.

Description

MANUAL CALL POINT
The present invention is related to a manual call point, and particularly to an alarm that is capable of warning via a non-electronic warning signal when an electronic light-emitting source thereof is out of order and thus unable to display warning signals.
With the highly advanced civilization of human being, there are many potential dangerous factors in the buildings where we live. When a man-made or natural calamity (such as a fire, earthquake or etc.) happens, since the modern buildings are built so high and their constructions are closed, it is difficult to flee such a high and closed building, which may result in the lost of people's life and properties.
In order to overcome the above problem and protect people's life and properties, in addition to precautionary means in ordinary times, the most important thing in protecting the calamity is to alert people immediately upon the occurrence of the calamity. Therefore, a manual call point is developed.
In Europe, a manual call point, usually referred to as an MCP within the fire protection industry, and is used to allow building occupants to signal that a fire or other emergency exists within the building. They are usually connected to a central fire alarm panel which is in turn connected to an alarm system in the building, and often to a local fire brigade dispatcher as well.
When the calamity happens, one can activate the manual call point to generate a ring of warning bells or warning signals, thereby alerting all the people in this building for the calamity to adopt emergent measures immediately.
A common manual call point is provided with an electronic light-emitting source (such as a LED lamp). After being activated, the electronic light-emitting source will emit light to transmit a visual warning signal to alert people. However, in addition to the electronic light-emitting source, it is desired that the manual call point has an effect of displaying a non-electronic signal, thereby avoiding the problem of failing to transmit signals correctly if the electronic light-emitting source is out of order.
The conventional manual call point is provided with an operating panel and a display element. The display element alerts people for some emergent conditions via an eye-catching colored sign. When a calamity happens, one can press the operating panel to show up the display element. At the same time, the operating panel will press a switch within the manual call point to activate the manual call point. However, the conventional operating panel cannot press the switch securely, so that the signals cannot be transmitted steadily. If the signals break off while the calamity has not been removed, the warning bell will be stopped accordingly, so that people may make an erroneous judgment.
The object of the present invention is to provide a manual call point to avoid or alleviate one of the above problems. In one embodiment, a switch can be activated securely so as to avoid the signals from breaking off. More preferably, the present invention has an effect of displaying non-electronic signals The invention is defined in the independent claim.
Further preferred features are defined in the dependent claims.
In one embodiment, the present invention provides a manual call point including: a housing having an accommodating space and a cover, the cover being provided with a display opening and an insertion hole, the display opening being opened to an end surface of the cover, the housing being provided therein with an operating panel and a switch, the operating panel covering the display opening; a display element provided in the housing near the periphery of the display opening, the display element having a shining portion, a stopping portion and a pressing portion, the shining portion abutting against one end of the operating panel; and an elastic element provided in the housing and connected to the display element. Via the above arrangement, after the operating panel is pressed, the shining portion of the display element can protrude to be exposed to the display opening through the force applied by the elastic element.
Further, the stopping portion is stopped at the periphery of the display opening, while the pressing portion of the display element presses the switch, thereby activating the manual call point to generate an alert.
The embodiment has advantageous effects as follows. With the pressing portion of the display element pressing the switch, the switch can be activated more securely to generate a steady electrical connection. As a result, it is able to transmit a warning signal continuously also transmit it to a fire-fighting switchboard. Further, the effect of displaying a non-electronic warning signal can be achieved.
A preferred embodiment of the invention are described below by way of example only with reference to Figures 1 to 7 of the accompany drawings, wherein: Fig. 1 is an exploded perspective view showing the manual call point of the present invention; Fig. 2 is a partially cross-sectional view showing the front of the manual call point of the present invention; Fig. 3 is a side cross-sectional view (I) showing the manual call point of the present invention; Fig. 4 is a schematic view showing the manual call point of the present invention being in an alert; Fig. 5 is a side cross-sectional view (II) showing the manual call point of the present invention; Fig. 6 is a schematic view showing the manual call point of the present invention with a reset key being inserted; and Fig. 7 is an assembled perspective view showing the manual call point of the present invention from a rear viewing angle.
Please refer to Figs. 1 to 7. The present invention provides a manual call point which includes a housing 1, a circuit board 2, an operating member or panel 3, a display member or element 4, a reset key 5, an outer cover 6 and a mounting base 7.
Please refer to Figs. 1 to 3. The housing I has an accommodating space 10. The housing 1 includes a base 11 and a cover 12 covering on the base 11. The accommodating space 10 is formed in the base 11 and the cover 12.
The base 11 has an engaging body 111, a through hole 112, two buckling portions 113 and two engaging troughs 114. The engaging body ill extends from the bottom of the base 11. The through hole 112 is opened to the bottom of the base 11. The two buckling portions 113 are provided at one edge of the base II. The two buckling portions 113 are hooked members having a light elasticity. The two engaging troughs 114 are lormed by means of recessing the other edge of the base 11.
The cover 12 covers the base 11. The cover 12 has a display opening 121 and an insertion hole 122. The display opening 121 is formed in the cover 12 to penetrate the front and rear end surfaces of the cover 12. The insertion hole 122 is formed at the side of the cover 12 to communicate with the accommodating space 10. The cover 12 has a guiding path 123 and a guiding pillar 124. The guiding path 123 corresponds to the insertion hole 122 and is formed by means of extending from the periphery of the display opening 121 immediately. The guiding pillar 124 is provided near the distal end of the guiding path 123.
The circuit board 2 is provided on the bottom of the base 11. The circuit board 2 has a switch 21 and an electronic light-emitting source 22 for electrically connecting with the switch 21. The electronic light-emitting source 22 is a LED lamp that is exposed to the surface of the cover 12 (Fig.4) and can emit light to alarm people.
The operating panel 3 is provided in the accommodating space 10 and covers the display opening 121 of the cover 12 to press the upper end of the engaging body 111 of the base 11. Via the provision of the engaging body 111, the operating panel 3 can swing elastically in the housing I in a small range, so that a later-described shining portion 42 of the display element 4 can bound out to be exposed to the display opening 121.
The display element 4 is provided in the housing 1 near the underside of the periphery of the display opening 121. The display element 4 can be pivoted on the cover 12. The display element 4 has an arm 41, a visional alarm portion or a shining portion 42, a restraining portion or stopping portion 43, a pressing portion 44, a guiding trough 45, an abutting portion 46 and an elastic element 47.
One end of the arm 41 has a pivoting portion 411 that is pivoted to the cover 12 near the underside of the display opening 121. The shining portion 42 is a protruding plate that is formed at the upper edge of the other end of arm 41 and abuts against one end of the operating panel 3 (Figs. 2 and 3).
The stopping portion 43 is a pillar extending from a front end surface of the arm 41, which can stop at the lower edge of the periphery of the display opening 121 when the shining portion 42 protrudes to be exposed to the display opening 121.
The pressing portion 44 is formed on the rear surface of arm 41 (Fig. I and 3) to correspond to the switch 21, and can press on the switch 21 to activate the electronic light-emitting source 22 and other warning means (such as a warning bell) on the circuit board 2.
The guiding trough 45 is a curved trough that is formed on the other end of the arm 41. The guiding pillar 124 of the cover 12 is inserted in the guiding trough 45 and is provided with a screw, thereby forming a trajectory of the rotating and swinging action of the display element 4.
The abutting portion 46 and the stopping portion 43 are of a pillar similarly that can be used as a force-exerting point for a later-described elastic element 47.
The elastic element 47 is a torque spring that covers the pivoting portion 411 of the arm 41. One end of the elastic element 47 presses the abutting portion 46, and the other end of the elastic element 47 presses the cover 12, thereby generating an action force for returning the swinging of the display element 4.
The reset key 5 has an insertion portion or plate 51 and a drawing member or plate 52. The distal end of the insertion plate 5 1 is formed with a slope 511. The insertion plate 5 1 is formed with a stepped portion 512 in the longitudinal direction. The insertion hole 122 and the guiding path 123 are formed in such a manner that they correspond to the stepped portion 512. The insertion plate 51 of the reset key 5 is inserted in the insertion hole 122. The slope 511 of the insertion plate 51 extends into the distal end of the guiding path 123 to abut against the stopping portion 43 of the display element 4 and press down the display element 4. In this way, the shining portion 42 sinks into the cover 12 without being exposed to the display opening 121. The drawing plate 52 is of a plate-like structure that facilitates an operator to draw out the reset key 5.
The outer cover 6 covers on the cover 12 of the housing I pivotally, thereby avoiding any one from touching the manual call point erroneously in ordinary times.
The mounting base 7 can be provided on a wall surface of a building, so that it is convenient for any one to operate. The bottom of the mounting base 7 is provided with a penetrating hole 71 and a plurality of screw holes 74.
The penetrating hole 71 allows wires embedded in the wall surface to penetrate through to be electrically connected with an electronic assembly (Fig. 7) of the circuit board 2. The screw holes 74 allow the mounting base 7 to be screwed on the wall surface by screws. The mounting base 7 allows the base 11 to be mounted thereon. The mounting base 7 has two engaging portions 72 and two buckling holes 73. The buckling portions 113 of the base 11 are buckled to the buckling holes 73 elastically. The engaging portions 72 are engaged in the engaging troughs 114 of the base I I, thereby mounting the housing I on the mounting base 7.
On the drawing plate 52 of the reset key 5, protruding pillars 53 are formed to correspond to the two buckling holes 73. The protruding pillars 53 press the buckling portions 113 via the buckling holes 73, thereby ejecting the base 11 from the mounting base 7. In this way, it is convenient to connect the base 11 with the wires penetrating trough the penetrating hole 71 of the mounting base 7.
Please refer to Figs. 2 and 3. In ordinary times, the reset key 5 can be put alongside the housirrg 1. The shining portion 42 of the display element 4 abuts against one end of the operating panel 3 and sinks into the cover 12.
Please refer to Figs. 4 and 5. When an alert happens, one can lift up the outer cover 6 first. After pressing the operating panel 3, the acting force of the elastic element 47 causes the arm 41 of the display element 4 to swing, thereby ejecting the shining portion 42 to be exposed to the display opening 121. At the same time, the pressing portion 44 of the display element 4 presses the switch 21 to activate the electronic light-emitting source 22 and a warning bell. Further, a warning signal will be transmitted to a fire-fighting switchboard, thereby proceeding with an alarming operation.
Please refer to Fig. 6. When any one wants to remove the alert, the insertion plate 51 of the reset key 5 is inserted into the guiding path 123 via the insertion hole 122 of the housing 1. And, the slope 511 of the distal end of the insertion plate 51 abuts against the stopping portion 43 of the display element 4, so that the display element 4 returns to its original position and sinks into the cover 12 again. The operating panel 3 returns to its original position and abuts against the shining member 42. At the same time, one can draw out the reset key 5, so that it can be used in the next time. Via the above actions, the transmission of the warning signal is stopped securely, thereby removing the alert.
The present invention has advantageous effects as follows. With the pressing portion 44 of the display element 4 pressing the switch 21, the switch 21 can be pressed more securely to generate a firm electrical connection. As a result, it is possible to transmit warning signals continuously and also transmit it to a fire-fighting switchboard. Further, the effect of displaying non-electronic warning signals can be achieved.
While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiment. On the contrary, it is intended to cover various modifications and similar arrangements included within the scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures. l0

Claims (12)

  1. CLAIMS: 1. A manual call point, comprising: a housing having an accommodating space and a cover, the cover provided with a display opening and an insertion hole, the display opening formed on a front surface of the cover; an operating panel provided within the housing, the operating panel covering the display opening; a display member provided in the housing near the periphery of the display opening, the display member having a shining portion, a restraining portion and a pressing portion, the shining portion abutting against one end of the operating panel in a normal state; and an elastic member provided in the housing and connected to the display member; and a switch, whereby when the operating panel is pressed, the shining portion of the display member is biased by the elastic member until the restraining portion abuts against an edge of the display opening to allow the shining portion to be exposed in the display opening, and the switch is pressed by the pressing portion of the display member to activate the manual call point to generate an alarm.
  2. 2. The manual call point according to claim 1, wherein the housing comprises a base, the cover covers the base, and a rear end surface of the cover is formed -with a guiding path to correspond to the insertion hole.
    II
  3. 3. The manual call point according to claim 2, wherein the base has therein an engaging body, the operating panel covers the display opening of the cover and abuts against an upper end of the engaging body.
  4. 4. The manual call point according to claim 2 or claim 3, wherein the bottom of the base is provided with a circuit board, the circuit board is provided thereon with an electronic light-emitting source, the switch is provided on the circuit board, and the switch is electrically connected with the electronic light-emitting source.
  5. 5. The manual call point according to any preceding claim, wherein the display member has an arm, one end of the arm is pivotably coupled to the cover, the shining portion is formed at the other end of the arm, and the abutting portion is formed at a rear end surface of the arm.
  6. 6. The manual call point according to any of claims 2 to 5, further comprising a reset key, the reset key having an insertion portion with a slope formed at the distal end, wherein when the insertion portion is inserted in the guiding path via the insertion hole of the cover, the slope abuts against the restraining portion of the display member.
  7. 7. The manual call point according to claim 5 or claim 6, wherein the other end of the arm has a guiding slot, the cover has a guiding pillar, the guiding pillar is provided in the guiding slot, and the restraining portion is formed at a front end surface of the arm.
  8. 8. The manual call point according to claim 7, wherein the elastic element is a torsion spring engaged with one end of the arm of the display member, one end of the elastic member presses the display member, and the other end of the elastic member presses the cover.
  9. 9. The manual call point according to any of claims 6 to 8, further comprising a mounting base, the base provided in the mounting base and having a plurality of buckling portions and a plurality of engaging troughs, the mounting base having a plurality of buckling holes and a plurality of engaging portions, the buckling portions being buckled in the buckling holes, and the engaging portions being engaged with the engaging troughs.
  10. 10. The manual call point according to claim 9, wherein the reset key has a drawing member, and the drawing member has thereon protruding pillars corresponding to the buckling holes.
  11. 11. The manual call point according to claim 9 or claim 10, wherein the bottom of the base is provided with a through hole, the bottom of the mounting base is provided with a penetrating hole and a plurality of screw holes.
  12. 12. A manual call point substantially as described hereinabove with reference to Figures 1 to 7 of the accompanying drawings. S.
    S S... e... S. * I. * I.
    S S. * S p...
    S p....
    12. A manual call point, comprising: a cover having a display opening; an operating member; a switch coupled to an electric alarm generating device; and a display member having a pressing portion and a visual alarm portion, wherein: when the manual call point is in a normal state, the visual alarm portion is prevented from being displayed in the display opening by an engagement with the operating member; and when the operating member is pressed, the display member is biased by an elastic member to expose the visual alarm portion in the display opening and to actuate the switch by the pressing portion to activate the electric alarm generating device.
    13. A manual call point substantially as described hereinabove with reference to Figures 1 to 7 of the accompanying drawings.
    Amendments to the claims have been filed as follows CLAIMS: 1. A manual call point, comprising: a housing having an accommodating space and a cover, the cover provided with a display opening and an insertion hole, the display opening formed on a front surface of the cover; an operating panel provided within the housing, the operating panel covering the display opening; a display member provided in the housing near the periphery of the display opening, the display member having a visual alarm portion, a restraining portion and a pressing portion, the visual alarm portion abutting against one end of the operating panel in a normal state; and an elastic member provided in the housing and connected to the display member; and a switch, whereby, when the operating panel is pressed, the visual alarm portion of the display member is biased by the elastic member until the restraining portion abuts against an edge of the display opening to allow the * **.
    visual alarm portion to be exposed in the display opening, and the switch is pressed by the pressing portion of the display member to activate the manual **.
    S
    call point to generate an alarm wherein the display portion further comprises * 20 an arm, one end of the arm is pivotally coupled to the cover and the visual alarm portion is formed at the other end of the arm.
    2. The manual call point according to claim 1, wherein the housing comprises a base, the cover covers the base, a rear end surface of the cover is formed with a guiding path to correspond to the insertion hole.
    3. The manual call point according to claim 2, wherein the base has therein an engaging body, the operating panel covers the display opening of the cover and abuts against an upper end of the engaging body.
    4. The manual call point according to claim 2 or claim 3, wherein the bottom of the base is provided with a circuit board, the circuit board is provided thereon with an electronic light-emitting source, the switch is provided on the circuit board, and the switch is electrically connected with the electronic light-emitting source.
    5. The manual call point according to any preceding claim, the display member further comprising a pressing portion formed at a rear surface of the arm.
    6. The manual call point according to any of claims 2 to 5, further comprising a reset key, the reset key having an insertion portion with a slope formed at the distal end, wherein when the insertion portion is inserted in the guiding path via the insertion hole of the cover, the slope abuts against the stopping portion of the display member. * ..*
    ::. 7. The manual call point according to claim 5 or claim 6, wherein the other end
    ISIS
    of the arm has a guiding slot, the cover has a guiding pillar, the guiding pillar is provided in the guiding slot, and the stopping portion is formed at a
    I
    front end surface of the arm. i15
    8. The manual call point according to claim 7, wherein the elastic element is a p....
    S
    torsion spring engaged with one end of the arm of the display member, one end of the elastic member presses the display member, and the other end of the elastic member presses the cover. (c3
    9. The manual call point according to any of claims 6 to 8, further comprising a mounting base, the base provided in the mounting base and having a plurality of buckling portions and a plurality of engaging troughs, the mounting base having a plurality of buckling holes and a plurality of engaging portions, the buckling portions being buckled in the buckling holes, and the engaging portions being engaged with the engaging troughs.
    10. The manual call point according to claim 9, wherein the reset key has a drawing member, and the drawing member has thereon protruding pillars corresponding to the buckling holes.
    11. The manual call point according to claim 9 or claim 10, wherein the bottom of the base is provided with a through hole, the bottom of the mounting base is provided with a penetrating hole and a plurality of screw holes.
GB0800494A 2008-01-11 2008-01-11 Manual call point Active GB2456327B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
GB0800494A GB2456327B (en) 2008-01-11 2008-01-11 Manual call point

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GB0800494D0 GB0800494D0 (en) 2008-02-20
GB2456327A true GB2456327A (en) 2009-07-15
GB2456327B GB2456327B (en) 2009-12-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102208296A (en) * 2010-03-31 2011-10-05 西门子公司 Reset mechanism of manual alarm device and manual alarm device
US10249175B2 (en) 2015-09-18 2019-04-02 Gulf Security Technology Company Limited Push plate of manual alarm device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2024521A (en) * 1978-04-11 1980-01-09 Kac Alarm Co Ltd Electrical Switch
GB2352332A (en) * 1999-07-22 2001-01-24 Kac Alarm Company Ltd Trigger mechanism for an alarm call-point
WO2001011585A1 (en) * 1999-08-10 2001-02-15 Fulleon Limited Call points or break glass units
GB2401992A (en) * 2003-05-17 2004-11-24 Kac Alarm Company Ltd Alarm call point

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2024521A (en) * 1978-04-11 1980-01-09 Kac Alarm Co Ltd Electrical Switch
GB2352332A (en) * 1999-07-22 2001-01-24 Kac Alarm Company Ltd Trigger mechanism for an alarm call-point
WO2001011585A1 (en) * 1999-08-10 2001-02-15 Fulleon Limited Call points or break glass units
GB2401992A (en) * 2003-05-17 2004-11-24 Kac Alarm Company Ltd Alarm call point

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102208296A (en) * 2010-03-31 2011-10-05 西门子公司 Reset mechanism of manual alarm device and manual alarm device
WO2011120850A1 (en) * 2010-03-31 2011-10-06 Siemens Aktiengesellschaft A reset mechanism for a manual alarm device and a manual alarm device with the same
CN102208296B (en) * 2010-03-31 2013-11-06 西门子公司 Reset mechanism of manual alarm device and manual alarm device
US10249175B2 (en) 2015-09-18 2019-04-02 Gulf Security Technology Company Limited Push plate of manual alarm device

Also Published As

Publication number Publication date
GB2456327B (en) 2009-12-30
GB0800494D0 (en) 2008-02-20

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