EP2096608A2 - Ensemble anti-fraude réglable - Google Patents

Ensemble anti-fraude réglable Download PDF

Info

Publication number
EP2096608A2
EP2096608A2 EP07270032A EP07270032A EP2096608A2 EP 2096608 A2 EP2096608 A2 EP 2096608A2 EP 07270032 A EP07270032 A EP 07270032A EP 07270032 A EP07270032 A EP 07270032A EP 2096608 A2 EP2096608 A2 EP 2096608A2
Authority
EP
European Patent Office
Prior art keywords
tamper
assembly
adjustable
support
fastener
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Withdrawn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
EP07270032A
Other languages
German (de)
English (en)
Other versions
EP2096608A3 (fr
Inventor
Duncan Spelman
Clym Brown
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.)
Texecom Ltd
Original Assignee
Texecom 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 Texecom Ltd filed Critical Texecom Ltd
Publication of EP2096608A2 publication Critical patent/EP2096608A2/fr
Publication of EP2096608A3 publication Critical patent/EP2096608A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind

Definitions

  • This invention relates to an adjustable tamper assembly particularly but not exclusively for use in a security alarm system.
  • a security alarm system is usually formed by a number of interconnected components and can take the form of a control panel linked to one or more detectors and also to an alarm sounder (commonly referred to as "a bell box").
  • the bell box can be mounted externally of a building or area to be protected, and is arranged to provide an audible and/or visible alarm under the control of the control panel when an alarm condition is detected.
  • alarm condition is meant any event which gives rise to actuation of the bell box in normal operation of the system.
  • Some or all of the components of existing systems are usually also protected against tampering by use of a tamper assembly which causes an alarm condition if the alarm components are tampered with to interfere with normal alarm operation.
  • some components of existing systems such as the bell box, are formed as a pair of complementary moulded plastics parts which are releasably connected together along respective edges thereof and which are secured together by a screw or other suitable fastener.
  • the flexible arm When parts of an alarm component are interconnected, the flexible arm is biased against the internal surface of one part and, when in this position, the tamper assembly is armed. If an attempt is made to interfere with the alarm system by separation of the parts, the flexible arm is able to flex outwardly in the space created and this flexing is arranged to trigger an alarm condition which will be detected by the alarm system.
  • an adjustable tamper assembly for security alarm components comprising a tamper member mounted on a tamper support and a tamper mount provided on a component part, said tamper support and said tamper mount being cooperable such that movement of the tamper support relative to the tamper mount is permitted said movement being such as to allow variation of the relative position of said tamper member and component part thereby permitting the sensitivity of the assembly to be varied.
  • the tamper support has an opening therein and said tamper support and said member can be connected together by a fastener extending through said opening into engagement with the tamper support, to connect the parts together.
  • the opening is in the form of elongated slot in which the fastener can move, the fastener having an enlarged head of size greater than the width of the slot to retain the fastener in the slot and prevent undesirable separation of the tamper support from the tamper member.
  • the tamper member may include a separate tamper element either attached to or formed as an integral part of the member.
  • side edges of said slot may have a number of projections projecting into the slot and which define a series of "park positions" in which the fastener can be retained.
  • Each park position may define a specified level of sensitivity.
  • a surface of said tamper support in relation to which the member moves is curved whereby the position of the tamper member relative to the surface of the component part can be adjusted.
  • FIG. 1 one embodiment of an adjustable tamper assembly 10 according to the present invention.
  • the tamper assembly 10 is shown mounted on an internal surface of one part 11 of a bell box for a security alarm system (the other part being removed for clarity). It will of course, however, be appreciated that the assembly 10 of the invention.
  • the tamper assembly 10 comprises a tamper arm 12 mounted on an arm support 13, the arm support 13 being removably mounted on a mounting 14 provided on one component part 11 in such a manner that relative movement between the support 14 and the mount 13 is facilitated.
  • the tamper arm 12 is "flexible" and is conveniently formed from a thin strip of metallic material.
  • the tamper arm can, however, be formed from any suitable material as desired or as appropriate, the only requirement being the need for the arm 12 to be flexible.
  • the tamper arm 12 is releasably mounted on the arm support 13 so as to be capable of being removed for the purpose of renewal or repair.
  • the tamper arm 12 is described as being necessarily flexible, such considerations apply only to an assembly of the type discussed.
  • the tamper assembly can take many different forms, which may or may not incorporate a tamper arm whether flexible or not.
  • the overall advantage of the present invention is the adjustability of the sensitivity of the assembly which is not necessarily a function of the type of assembly used.
  • the arm support 13 comprises a body having a transversely extending flange 16 at one end thereof, in the embodiment shown, the one end being opposite to the end on which the arm 12 is mounted.
  • the transversely extending flange 16 has an elongate notch 17 therein which can, if desired, have side edges 18 having regular spaced projections therefrom and between each pair of projections is defined a "park position".
  • the tamper mount 14 is preferably formed integrally with the component on which the tamper assembly of the invention is used or can be attached thereto in any suitable manner.
  • the mount 14 has a top surface which is generally curved upwardly at each end thereof as shown in the Figures.
  • the curved surface may further be adapted to have a plurality of teeth thereon and, in this case, a lower surface of the arm support may have a complementary set of teeth formed thereon.
  • the arm support 13 can be attached to the tamper mount by way of a fastener 21 which passes right through the notch in the flange and into releasable engagement with the mount.
  • the fastener 21 may have an enlarged head at one end thereof to prevent the fastener passing through the notch thereby allowing the body and mount becoming separated.
  • the fastener may be screw threaded at one end thereof and may releasably cooperate with a screw threaded bore in a top surface of the tamper mount 14.
  • the arm support 13 is connected to the tamper mount 14 by way of a fastener 21 extending through the elongate notch 17 in the projecting flange 16 in the support and into releasable engagement with the bore in the top surface of the mount 14.
  • the fastener 21 is screw threaded and engages in a corresponding screw threaded bore in the surface of the body, as described above.
  • the fastener can take any suitable form as desired or as appropriate.
  • the inclination of the tamper arm 12 is fixed in relation to the corresponding part and will therefore be greater or less sensitive depending on the permitted angles of inclination allowed.
  • any suitable tamper assembly can be utilised as desired or as appropriate.
  • the only essential requirement is that the tamper assembly includes parts which are capable of movement relative to each other to adjust the sensitivity of the assembly.
  • the adjustability of the tamper has also advantages in that the assembly can be removed to facilitate ease of assembly or removal for repair or renewal.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
EP07270032A 2006-06-13 2007-06-13 Ensemble anti-fraude réglable Withdrawn EP2096608A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0611566A GB0611566D0 (en) 2006-06-13 2006-06-13 Adjustable tamper assembly

Publications (2)

Publication Number Publication Date
EP2096608A2 true EP2096608A2 (fr) 2009-09-02
EP2096608A3 EP2096608A3 (fr) 2009-09-16

Family

ID=36745708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07270032A Withdrawn EP2096608A3 (fr) 2006-06-13 2007-06-13 Ensemble anti-fraude réglable

Country Status (2)

Country Link
EP (1) EP2096608A3 (fr)
GB (1) GB0611566D0 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2966862A1 (fr) * 2014-07-07 2016-01-13 Honeywell International Inc. Système et procédé de communication de données à partir d'un système d'alarme pour le personnel de services d'urgence
WO2022125350A1 (fr) * 2020-12-09 2022-06-16 Ademco Inc. Détection d'effraction activée de manière sélective
US12488677B2 (en) 2020-12-09 2025-12-02 Resideo Llc Bracket tamper detection
US12542050B2 (en) 2020-12-09 2026-02-03 Resideo Llc Tamper detection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092641A (en) * 1976-07-06 1978-05-30 Statitrol Corporation Security interlock switch system for smoke detectors and the like
US4150371A (en) * 1978-03-09 1979-04-17 Ripley Company, Inc. Tamper indicator
US4688023A (en) * 1985-08-19 1987-08-18 Stephen C. Highsmith Container having child safety device and alarm
WO1998006072A1 (fr) * 1996-08-05 1998-02-12 Dashcrown Limited Dispositif de securite

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2966862A1 (fr) * 2014-07-07 2016-01-13 Honeywell International Inc. Système et procédé de communication de données à partir d'un système d'alarme pour le personnel de services d'urgence
WO2022125350A1 (fr) * 2020-12-09 2022-06-16 Ademco Inc. Détection d'effraction activée de manière sélective
US12488677B2 (en) 2020-12-09 2025-12-02 Resideo Llc Bracket tamper detection
US12542050B2 (en) 2020-12-09 2026-02-03 Resideo Llc Tamper detection

Also Published As

Publication number Publication date
EP2096608A3 (fr) 2009-09-16
GB0611566D0 (en) 2006-07-19

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