EP0564668A1 - Elément de blocage - Google Patents

Elément de blocage Download PDF

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Publication number
EP0564668A1
EP0564668A1 EP92105840A EP92105840A EP0564668A1 EP 0564668 A1 EP0564668 A1 EP 0564668A1 EP 92105840 A EP92105840 A EP 92105840A EP 92105840 A EP92105840 A EP 92105840A EP 0564668 A1 EP0564668 A1 EP 0564668A1
Authority
EP
European Patent Office
Prior art keywords
pawl
locking
bolt
element according
locking element
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.)
Ceased
Application number
EP92105840A
Other languages
German (de)
English (en)
Inventor
Manfred Dipl.-Ing. Neumann
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.)
Dr Alfred Ristow & Co GmbH
Original Assignee
Dr Alfred Ristow & Co GmbH
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 Dr Alfred Ristow & Co GmbH filed Critical Dr Alfred Ristow & Co GmbH
Priority to EP92105840A priority Critical patent/EP0564668A1/fr
Publication of EP0564668A1 publication Critical patent/EP0564668A1/fr
Ceased 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
    • G08B25/008—Alarm setting and unsetting, i.e. arming or disarming of the security system
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0607—Controlling mechanically-operated bolts by electro-magnetically-operated detents the detent moving pivotally or rotatively
    • 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
    • E05B2045/0695—Actuation of a lock triggering an alarm system, e.g. an alarm system of a building
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E05B47/0006—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a non-movable core; with permanent magnet

Definitions

  • the invention relates to an electromagnetically controllable locking element which serves as part of the arming device of an intruder alarm system and which engages on the bolt linkage of a door lock to ensure the inevitability during the mechanical locking and unlocking process of a first / last accessible door.
  • Burglar alarm systems for securing security rooms require an arming device in order to switch their function “armed”, that is, or in order to be able to “disarm” them, that is, to switch them off.
  • this arming device is always arranged on the first or last accessible door of the security rooms, so that when the door is closed the system is “armed” and “disarmed” when it is first walked on.
  • the purpose of the arming device is to switch the intrusion alarm system on and off in a controlled manner, a false alarm being inevitably avoided when arming.
  • German industry standard (DIN VDE 08 33) states: "A security area is ready for arming if it does not display any messages and faults from the burglar alarm system that is ready for reporting, except for network faults and such faults that do not impair the function".
  • a prerequisite for arming is an intrusion alarm system that is ready for arming, which is signaled by an electrical voltage signal applied to the arming device. This signal is used in the known arming devices to remove a locking element preventing the locking of the first / last accessible door from the locking area, so that the closing process can be carried out. The same applies to disarming, where such a blocking element is used.
  • the arming device of an intruder alarm system is therefore the point where an existing signal has to be converted into the mechanical actuation of a locking element.
  • this work cannot be accomplished with the usual signal currents of a few mA, but requires currents equivalent to a work output correspond to about 5 watts.
  • this requires, especially if a long signal line leads to the arming device, correspondingly large cross sections of the signal line, which are normally not available.
  • the line is not dimensioned accordingly strong, the voltage drop may be too high, which may lead to a fault when the arming device is actuated.
  • Such an "arming / disarming switching device for an intrusion detection system" is described for example in EP-A-04 43 116.
  • the locking device of this switching device is formed here by a slide which can be brought from a rest position into a locking position or locking position by an electric motor via a drive mechanism.
  • a screw drive is provided in this switching device, which reduces the power requirement of the electric motor when the blocking device is moved, the current caused by this electric motor is still significantly above that which can be regarded as a signal current in such networks.
  • Another possibility is given in EP-B-01 94 248, where an electromagnet pivots a locking latch part. Accelerating this blocking part likewise requires a high current, even if it only acts for a very short time, so that the voltage drop described above, which may give rise to faults, can be determined here again.
  • the object of the invention is to provide a locking element belonging to such a setting device which mechanically locks and unlocks the Bolt linkage or the bolt of a door that can be walked on first / last due to relatively low signal currents, but nevertheless with the extreme security required in such intrusion detection systems.
  • This is achieved in a manner according to the invention by a pawl which rests on the bolt of the bolt linkage and which is pivotally mounted by weight or spring force in the direction of the bolt such that it engages in pivoting recesses in the bolt as it is pivoted and by a pivoting movement of the pawl controlling electromagnetic holding device.
  • the locking element according to the invention has the extraordinary advantage that the actual lock, in this case the pawl, is not actively moved into a locking position and must be removed from this position, but that the pivoting of the pawl either by weight or Spring force is carried out and that the electromagnetically actuated holding device therefore only requires a current which is required to keep this pivotable pawl in its rest position against the weight or spring force. So there are no locking or locking parts accelerated in the invention, but it is only ensured by the electromagnetic holding device that the lock does not come into force, so in this case the pawl does not fall into the position locking the locking movement.
  • the advantage of the embodiment of the blocking element according to the invention lies in the significantly lower current requirement, which is now actually in the order of magnitude of signal currents and in any case does not lead to such a voltage drop which can give rise to system faults.
  • the pawl can be designed as a one- or two-armed lever.
  • the two-armed version is preferred, however, because it allows a simpler design.
  • the pawl In order to be able to use the weight force, the pawl should be arranged above the bolt. As a result, however, the installation of the locking element according to the invention is position-dependent, so that preference is generally given to the use of compression or tension springs for triggering the pivoting movement of the locking pawl.
  • a simple electromagnet acting directly on the pawl is proposed as the holding device.
  • the safe release of the pawl from the core of the electromagnet can be brought about in a manner known per se by means of an anti-glue stick.
  • the holding device it is also conceivable for the holding device to be designed with a support pawl which is supported on the pawl in the rest position and can be pivoted by an electromagnet. This pawl supports the pawl against the pivoting movement or allows this pivoting movement of the pawl after pivoting away.
  • the respective end position of the electromagnet can be caused electromagnetically - by corresponding polarity of the current - or by a mechanical pawl which is actuated by the electromagnet.
  • the pawl pivots into its blocking position when there is no signal current.
  • this is possible by means of a support lever which supports the pawl in its "unset" rest position, which can be pivoted arbitrarily into this supporting position and can be pivoted back by a driver attached to the bolt.
  • the support lever thus allows the system to be armed in any case, even when the signal current is not present, and of course the pivoting movement of the support lever can also be additionally secured.
  • the locking element according to the invention can be provided both for the arming bolt movement and for the arming bolt movement.
  • the latches of such devices have different latching paths, which has always led to custom-made devices in the previously known devices.
  • the locking recesses to be provided here can be provided on both sides of the bolt, each for a specific bolt path, so that the desired bolt path can be adjusted by simply turning the bolt.
  • a locking element (1) belonging to the arming device of an intrusion detection system acts on a bolt (2) of a first / last accessible door which is in the "open” position in FIG. 1 and in the "closed” position in FIG. 4 .
  • the "open” position corresponds to the "unset” position the arming device, the "closed” position of the "armed” position.
  • the bolt (2) which is connected to switching elements (not shown), must be moved in the direction of the arrow (3) (FIG. 1).
  • To “unset” in the direction of the arrow (4) (Fig. 4).
  • the bolt (2) must be moved in the direction of the arrow (3) to arm it. If the electromagnet (11) is under tension, it holds the pawl (7) against the force of the tension spring (13) in the position shown in FIG. 1, so that the bolt (2) extends into its end position (FIG. 4) can be postponed. If, on the other hand, the voltage on the electromagnet (11) is missing, the pawl (7), as shown in FIG. 2, becomes free after the bearing point (9) has become free The pawl (7) is pulled into the locking recess (5) so that when the bolt (2) (arrow 3) moves further it strikes the other edge of the locking recess (5) (FIG. 3) and the bolt is moved (2) in its end position and thus prevents arming of the arming device.
  • the support lever (15) (Fig. 1) can be in its support position brought in which he holds the pawl (7) in its rest position until the pawl (7) has bridged the locking recess (5).
  • the driver (17) strikes the support lever (15) and guides it back to its rest position. Beyond that, such a support lever is not provided for the pawl (8) in order to avoid “disarming" in any case by such manipulation of this pawl (8).
  • Fig. 5 shows a similar embodiment, again with two pawls (7,8) but now act on compression springs (23,24).
  • a support pawl (22) which can be actuated by an electromagnet (21) engages.
  • the support pawl (7) or, as shown in FIG. 5 the support pawl (8) is supported, ie held in the respective rest position against the force of the compression spring (23 or 24).

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)
EP92105840A 1992-04-04 1992-04-04 Elément de blocage Ceased EP0564668A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92105840A EP0564668A1 (fr) 1992-04-04 1992-04-04 Elément de blocage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92105840A EP0564668A1 (fr) 1992-04-04 1992-04-04 Elément de blocage

Publications (1)

Publication Number Publication Date
EP0564668A1 true EP0564668A1 (fr) 1993-10-13

Family

ID=8209507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105840A Ceased EP0564668A1 (fr) 1992-04-04 1992-04-04 Elément de blocage

Country Status (1)

Country Link
EP (1) EP0564668A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111270911A (zh) * 2020-01-22 2020-06-12 广东快车科技股份有限公司 一种磁力锁的授信方法和授信系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE74343C (de) * F. SOHL, in Firma FRITZ SOHL & SINGELMANN, in Magdeburg, Kaiserstr. 90 Elektrische Controlvorrichtung und Sicherung für Thürverschlüsse
GB191210934A (en) * 1912-05-08 1913-01-02 Wilhelm Meyer Improvements relating to Door Locks.
US1361317A (en) * 1920-02-18 1920-12-07 Dulczewski Sigmund Burglar-lock
US1774636A (en) * 1927-07-23 1930-09-02 Cook Albert Electric lock
FR2477205A1 (fr) * 1980-02-29 1981-09-04 Safaa Mecanisme de verrouillage pour armoire-consigne
EP0222194A1 (fr) * 1985-10-18 1987-05-20 Siemens Aktiengesellschaft Dispositif pour armer et désarmer une installation de signalisation d'intrusion
EP0354542A2 (fr) * 1988-08-11 1990-02-14 Stephen Saeed Nourmand Système de sécurité avec serrure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE74343C (de) * F. SOHL, in Firma FRITZ SOHL & SINGELMANN, in Magdeburg, Kaiserstr. 90 Elektrische Controlvorrichtung und Sicherung für Thürverschlüsse
GB191210934A (en) * 1912-05-08 1913-01-02 Wilhelm Meyer Improvements relating to Door Locks.
US1361317A (en) * 1920-02-18 1920-12-07 Dulczewski Sigmund Burglar-lock
US1774636A (en) * 1927-07-23 1930-09-02 Cook Albert Electric lock
FR2477205A1 (fr) * 1980-02-29 1981-09-04 Safaa Mecanisme de verrouillage pour armoire-consigne
EP0222194A1 (fr) * 1985-10-18 1987-05-20 Siemens Aktiengesellschaft Dispositif pour armer et désarmer une installation de signalisation d'intrusion
EP0354542A2 (fr) * 1988-08-11 1990-02-14 Stephen Saeed Nourmand Système de sécurité avec serrure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111270911A (zh) * 2020-01-22 2020-06-12 广东快车科技股份有限公司 一种磁力锁的授信方法和授信系统
CN111270911B (zh) * 2020-01-22 2021-09-21 广东快车科技股份有限公司 一种磁力锁的授信方法和授信系统

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