FR2448609A1 - Detector sensing attempt. to force open locked door - includes microswitch behind spring-biased plate in lock mortise connected to alarm circuit - Google Patents

Detector sensing attempt. to force open locked door - includes microswitch behind spring-biased plate in lock mortise connected to alarm circuit

Info

Publication number
FR2448609A1
FR2448609A1 FR7903350A FR7903350A FR2448609A1 FR 2448609 A1 FR2448609 A1 FR 2448609A1 FR 7903350 A FR7903350 A FR 7903350A FR 7903350 A FR7903350 A FR 7903350A FR 2448609 A1 FR2448609 A1 FR 2448609A1
Authority
FR
France
Prior art keywords
plate
box
alarm circuit
locked door
lock
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.)
Pending
Application number
FR7903350A
Other languages
French (fr)
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.)
SILVERA ALDO
Original Assignee
SILVERA ALDO
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 SILVERA ALDO filed Critical SILVERA ALDO
Priority to FR7903350A priority Critical patent/FR2448609A1/en
Publication of FR2448609A1 publication Critical patent/FR2448609A1/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • E05B45/08—Electric alarm locks with contact making inside the lock or in the striking plate
    • E05B45/083—Electric alarm locks with contact making inside the lock or in the striking plate with contact making either in the striking plate or by movement of the bolt relative to the striking plate
    • E05B45/086—Electric alarm locks with contact making inside the lock or in the striking plate with contact making either in the striking plate or by movement of the bolt relative to the striking plate by transverse movement

Landscapes

  • Push-Button Switches (AREA)

Abstract

The lock plate includes a box (5) closed by a cover of sheet metal (6). The box is welded to a mounting plate (7) fastened to the door frame by a number of screws. The box has an opening (8) to receive the bolt of the lock. The box also includes a movable element (10) which may slide in a direction perpendicular to the plane of the door. An electrical switch (13) is so positioned behind the plate so that when the plate is moved, the contacts are operated. A pair of strong coil springs (14) lie between the plate and the base of the box, biasing the plate away from the contact. Any attempt to open the door whilst it is locked results in the plate moving to operate the switch, and thus operating the alarm circuit.
FR7903350A 1979-02-09 1979-02-09 Detector sensing attempt. to force open locked door - includes microswitch behind spring-biased plate in lock mortise connected to alarm circuit Pending FR2448609A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7903350A FR2448609A1 (en) 1979-02-09 1979-02-09 Detector sensing attempt. to force open locked door - includes microswitch behind spring-biased plate in lock mortise connected to alarm circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7903350A FR2448609A1 (en) 1979-02-09 1979-02-09 Detector sensing attempt. to force open locked door - includes microswitch behind spring-biased plate in lock mortise connected to alarm circuit

Publications (1)

Publication Number Publication Date
FR2448609A1 true FR2448609A1 (en) 1980-09-05

Family

ID=9221795

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7903350A Pending FR2448609A1 (en) 1979-02-09 1979-02-09 Detector sensing attempt. to force open locked door - includes microswitch behind spring-biased plate in lock mortise connected to alarm circuit

Country Status (1)

Country Link
FR (1) FR2448609A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535301A1 (en) * 1984-10-04 1986-04-17 Gebr. Grundmann GmbH, Herzogenburg, Niederösterreich Locking piece or lock case
US5752728A (en) * 1994-02-12 1998-05-19 Matouschek; Erich Alarm-triggering locking device for the catch and/or hinge region of a door or window to be protected
EP0952299A1 (en) * 1998-04-21 1999-10-27 GFM S.r.l. Burglar alarm for roller shutter
EP3594435A1 (en) * 2018-07-11 2020-01-15 ABUS August Bremicker Söhne KG Alarm signaller for a door locking system
WO2023097346A1 (en) * 2021-11-24 2023-06-01 De Villiers Marius De Wet Armed strike plate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535301A1 (en) * 1984-10-04 1986-04-17 Gebr. Grundmann GmbH, Herzogenburg, Niederösterreich Locking piece or lock case
US5752728A (en) * 1994-02-12 1998-05-19 Matouschek; Erich Alarm-triggering locking device for the catch and/or hinge region of a door or window to be protected
EP0952299A1 (en) * 1998-04-21 1999-10-27 GFM S.r.l. Burglar alarm for roller shutter
EP3594435A1 (en) * 2018-07-11 2020-01-15 ABUS August Bremicker Söhne KG Alarm signaller for a door locking system
WO2023097346A1 (en) * 2021-11-24 2023-06-01 De Villiers Marius De Wet Armed strike plate

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