WO1994008113A1 - Serrure a alarme - Google Patents

Serrure a alarme Download PDF

Info

Publication number
WO1994008113A1
WO1994008113A1 PCT/EP1993/002582 EP9302582W WO9408113A1 WO 1994008113 A1 WO1994008113 A1 WO 1994008113A1 EP 9302582 W EP9302582 W EP 9302582W WO 9408113 A1 WO9408113 A1 WO 9408113A1
Authority
WO
WIPO (PCT)
Prior art keywords
mechanical
alarm
electrical
loop
lock according
Prior art date
Application number
PCT/EP1993/002582
Other languages
German (de)
English (en)
Inventor
Peter Henner Merz
Original Assignee
Merz Metall- Und Kunststoffverarbeitungs 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
Priority claimed from DE4320752A external-priority patent/DE4320752A1/de
Application filed by Merz Metall- Und Kunststoffverarbeitungs Gmbh filed Critical Merz Metall- Und Kunststoffverarbeitungs Gmbh
Publication of WO1994008113A1 publication Critical patent/WO1994008113A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/005—Chain-locks, cable-locks or padlocks with alarms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/002—Weather or dirt protection

Definitions

  • the present invention relates to an alarm lock with a mechanical and a non-mechanical security loop as well as a control electronics with a power supply and an alarm transmitter, which at least when the non-mechanical security loop triggers an alarm.
  • Such Aiarmschioß is already known in the form of a steel cable lock, with soft both ends of a steel cable covered with plastic on the outside serve as mechanical locking elements and at the same time electrical contacts are provided on the steel cable, which are accommodated in a lock housing, with alarm electronics being provided, on which responds that the current-carrying steel cable is severed because this also interrupts the flow of current through the cable and the electronics are designed in such a way that they trigger an alarm if no current flows through the steel cable
  • Such alarm locks have a very wide range of applications.
  • the mechanical security loop consists of an elastically bendable or flexible steel that can be put around objects, massive link chains, which are also movable and the ends of which are connected to each other with a padlock
  • the links of the chain can also be accommodated in a plastic casing
  • padlocks which consist of a solid metal bracket which is gelled around at least part of the object to be secured and the ends of which are connected to a lock in a lock housing.
  • a flexible rope has a sheath made of a chain of steel sleeves which are articulated to one another, which in turn are sheathed in plastic and have a relatively large diameter, so that at least smaller bolt cutters cannot be effectively applied.
  • the well-known alarm lock has a relatively weak mechanical security loop in the form of a thin steel cable, which can be cut under certain circumstances with a good side cut is removed and then the insulated points are connected to one another by an electrical cable which is guided parallel to the mechanical safety rope and the lock part in such a way that the object to be secured is no longer encompassed by the current loop thus additionally formed. Then the rope can be separated beyond this additional current loop without interrupting the flow of electricity as a whole, so that no alarm is triggered either.
  • the present invention has for its object to provide an alarm lock, the non-mechanical protection can not be overridden by simple measures.
  • a non-mechanical security loop in the form of a thin electrical or optical line can be integrated in a plastic sleeve of the mechanical security loop or, according to a preferred embodiment of the invention, can be integrated in the mechanical security loop to protect it from outside access.
  • the electrical bridging of the mechanical safety loop then has no effect, since we do not bypass the actual alarm loop and, when the mechanical safety loop is interrupted, there is also an interruption of the non-mechanical safety loop either integrated in a plastic sleeve or inside the mechanical loop.
  • an electrically securing loop is provided as the non-mechanical securing loop, which is electrically isolating from the mechanical securing loop and is integrated into the mechanical safety loop, protected against direct electrical contact from the outside.
  • the mechanical and the electrical loop consist of a steel with an integrated insulated copper cable.
  • Such ropes with an insulated copper core are already commercially available for other purposes. It is not essential for the invention that the insulated copper cable runs exactly in the middle of the steel cable as a ke. It is only important that the copper cable is not immediately recognizable from the outside and is also not easily accessible.
  • an insulated line can be inserted into a groove of a solid securing bracket provided for this purpose and can be fixed therein.
  • the groove can then be closed again by metal or plastic or is covered by a plastic covering of the metal bracket
  • a solid locking element is provided on at least one end of the integrated mechanical and electrical security loop, which also has an integrated optical or isolated electrical line and can be detachably connected to a lock.
  • the locking element has separate electrical and mechanical locking surfaces.
  • a real locking device is intended for the mechanical locking i.e. a safeguard against loosening of the locking element from the lock part by tension, pressure or bending forces.
  • the electrical “locking” only means the safe closing of the electrical contact for the current loop which forms the electrical safety loop.
  • the electrical contact or locking surfaces are kept in contact with one another by resilient pretensioning, so that the current loop is not interrupted even in the event of strong vibrations.
  • an embodiment of the invention is preferred in which a key switch actuates the electrical and mechanical locking simultaneously or immediately one after the other so that no alarm is triggered when the locking is released with the key switch and conversely the alarm is immediately established, even if the mechanical locking has taken place, at the latest when the key is removed.
  • the key switch thus acts simultaneously as an electrical switch or as an actuation for this and also as an actuation aid for the mechanical locking.
  • the alarm electronics independently respond to various alarm conditions, but at least to one of the following alarm conditions, namely the interruption of the electrical safety loop at any point, a short circuit or an electrical connection between the electrical and the mechanical safety loop, including the Lock housing and loosening mechanical locking by manipulating the lock without actuating the key switch. It is also expedient if the key switch actuates the electrical circuit and the mechanical lock with a separate element
  • the term "current loop" as an electrical safety loop is not necessarily to be taken literally, i.e. There is no permanent current flowing through the current loop, but the alarm electronics must be designed so that they react immediately if the electrically conductive connection is interrupted at any point via the safety loop, whereby variants are also possible after which very brief interruptions without alarm triggering are permitted are, whereby such interruptions can of course always be only briefly, that manipulation is impossible during this time, ie bridging the electrical loop can take place.
  • the current can only ever be given in a short pulse of e.g. 100ths of a second duration are sent through the current loop, the impulses being separated by pauses of 1/10 or several tenths of a second.
  • the electrical fuse loop can be supplied to a capacitor or an electronic switching element, e.g. a gate, can be provided, whereby in normal conditions practically no current flows, but only a voltage is maintained at a certain point of the electronics via the electrical safety line, which also breaks when the line is interrupted or falls below a threshold value which then via the electronics the alarm triggers.
  • a capacitor or an electronic switching element e.g. a gate
  • the non-mechanical security loop consists of an optical security loop in the form of an optical fiber line, a light source and a light sensor.
  • the light source and light sensor are expediently housed in a lock housing and a glass fiber line, preferably a single glass bevel, is integrated, for example, into the plastic shell of a steel bracket, a steel cable or a chain.
  • the ends of the glass fiber line are exposed, for example, in the area of corresponding mechanical locking elements ⁇ and are arranged such that on the one hand they can directly record the license of a light source and on the other hand they can deliver it to a corresponding light-sensitive sensor.
  • the light source and sensor are expediently housed in a lock housing.
  • the glass fiber line can be arranged completely analogously to a corresponding insulated electrical line.
  • a fiber optic cable, in particular a single fiber has the advantage that a bridging in practice also dan appears to be excluded if the glass fiber line is relatively easily accessible from the outside, for example if it should be recognizable or known from identical designs of such locks, where the glass fiber runs in or under a plastic cover of a steel shackle lock or the like Step the wall of the glass fiber outwards so that a coupling of another glass fiber and thus a bridging of the light conduction is impossible.Coupling out the light would at most be conceivable with an elaborate laboratory technique that is generally not available to a potential thief, and even then for a short time Interruption of the light beam could hardly be avoided. However, any interruption is immediately registered by the Uchtsenso, which can then trigger an alarm.
  • the ends of the glass fiber line are expediently guided up to the ends of the mechanical locking of a wire bracket or solid bracket, so that they are positioned exactly in a lock and are arranged in a fixed position with respect to a light source and a night sensor.
  • this arrangement represents a non-mechanical, specifically an optical "lock" which is monitored by the corresponding electronics.
  • An acoustic alarm device is preferred for the invention, which emits loud whistling sounds at short intervals, for example.
  • Such alarm sounders are in principle of the most diverse security systems, e.g. also car theft protection, infrared surveillance systems, etc., known.
  • an electric accumulator is provided as the current source according to the invention.
  • batteries can also be used as a power supply if, for example, they are so securely accommodated in the lock housing that the power supply cannot be interrupted by external manipulations without triggering the alarm.
  • the batteries should then also be watertight and housed in an acid-proof plastic housing.
  • a light-emitting diode is also provided on the outside of a lock housing, in which the alarm electronics are also accommodated, this light-emitting diode, by brief flashing at more or less large intervals, making the system ready for operation and or a sufficient charge state of the battery or, if applicable, of the batteries.
  • the air electronics are housed in a separate housing.
  • the power switch can be completely separated from the electronics by the key switch. So if the alarm system is out of order, the electronics also consumed no electricity
  • connections for a charger are also provided on the lock housing in the preferred embodiment of the invention in order to be able to charge the internal battery, again such an embodiment of the invention is preferred in which the charging contact is actuated either by actuating the key switch or by actuating the charging contacts are completely disconnected from the battery on the outside of the housing when the charger is not connected
  • the entire electronics including the power supply and the alarm sounder is accommodated in the preferred embodiment of the invention in a mechanically stable lock housing, in which the mechanical locking device or locking device for the mechanical security loop and the electric security loop are provided at the same time entire alarm electronics and preferably also the battery as a whole are shed together, so that moisture or immersion of the lock in water can not override the alarm system. It is self-evidently expedient if the electrical locking connections are largely housed watertight.
  • the lock housing has an insulated, electrically conductive layer which is electrically connected to the electrical security loop.
  • This is preferably an inner coating of the lock housing, and this "layer" can be in the form of a film that is insulated on both sides if possible, a wire mesh or another, largely arbitrary sheet-like structure.
  • either only one end of the securing loop can be released from the lock or both ends can be released from the lock part or lock housing at the same time, as is e.g. is generally required when using mechanical safety clips
  • the mechanical locking mechanism can be any locking mechanism, e.g. locked only by inserting the rope end. It is only essential that in addition to the mechanical interlock, electrical contacts are also provided for the isolated current loop in the lock and that these contacts are accommodated in a protected manner so that they cannot be bridged easily. Under this premise, many known locks that are on the market can be adapted accordingly, or new locks can be developed to match the features according to the invention.
  • FIG 1 shows the electrical circuit diagram of the alarm lock according to the invention
  • Figure 2 shows the mechanical locking principle of a preferred embodiment.
  • FIG. 1 is a block diagram which schematically shows an electrical loop 1, which is encased by a mechanical loop and which is provided with connecting contacts 10, 11 which can be inserted into a locking lock 14.
  • Verriegeiungs devices essentially contain alarm electronics 3 with a power supply, which is formed by the battery 7.
  • the alarm electronics 3 essentially consist of de evaluation logic 4, a timer 5 and an alarm sounder 6.
  • a light-emitting diode 8 is also provided, which indicates the operational readiness or arming of the system.
  • a charger is referred to, which can be connected to an external power source 13, wherein connection contacts are provided on the outside of the lock 14 in order to de to be able to charge internal accumulator 7.
  • a lock switch 9 by means of which the mechanical locking of the lock can be produced and released with the aid of a key, is also provided for the actuation of an electrical switch which establishes the connection between the electrical accumulator 7 and the alarm electronics 3.
  • the associated electrical switch can , shown, single-pole, but it can also be two-pole and separate both ends of the battery from the alarm electronics.
  • the charger 12 can of course be disconnected from the electrical connections of the lock, whereby it can preferably also be provided that the charging contact can also be switched, possibly also by the key switch 9.
  • any connection between the charging contacts and the battery 7 is interrupted, so that nic by short-circuiting the charging contacts, the battery 7 can be discharged from the outside.
  • the parts shown as blocks 4a, 4b and 4c of the evaluation electronics 4 schematically illustrate different response criteria of the alarm electronics 3 and the evaluation logic.
  • the block 4a stands for a triggering of the alarm when the lock is not engaged and the key switch 9 is closed at the same time for example, the lock is not properly locked or that the lock is released without an alarm due to any mechanical manipulation.
  • Block 4b stands for triggering the alarm in the event of a short circuit, i.e. for a connection d loops 1 and 2 or also for a connection of the loop 1 to the lock housing, which is normally also electrically connected to the outer loop 2. Such a connection is made via the contacts 10, 11 at the ends of the loops 1, 2 detected
  • Block 4c finally stands for an alarm triggering when loop 1 a is opened at any point. It goes without saying that the loop 1 is continued beyond its Ranko clock 10 into the alarm electronics 3, interruptions in the interior of the lock would also trigger the alarm.
  • the block 5 downstream of the evaluation logic 4 represents a time switch which switches off the alarm sounder 6 after a predetermined, preferably adjustable time. This corresponds to the relevant regulations for alarm systems. Otherwise, the alarm status can only be canceled by actuating the key switch 9. In particular, the actual alarm state remains, ie there Output signal of evaluation logic 4 unchanged after an alarm has been triggered once, even if the alarm condition is subsequently released again, for example after loop 1 has been severed and your subsequent connection. As long as the timer noc has not come into action, the alarm timer 6 will continue to give an alarm. After the alarm timer 5 has been switched off, it can also be provided that the LED 8, instead of flashing briefly at intervals, now lights continuously or flashes in a clearly different rhythm, so that an alarm lock can still be recognized afterwards that an alarm condition was or is still present
  • FIG. 2 details of a possible locking are shown more or less schematically.
  • a massive mechanical locking element 16 is provided at both ends of the wire rope, which has a head part 20 which is connected via a neck part 21 to the main part of the mechanical locking element 16 is firmly connected to the rope 2.
  • the head 20 of the mechanical locking element essentially consists of a mechanical locking washer 17, an insulating layer 18 and an electrical contact tip 19, which is connected via an insulated connection passing through the mechanical locking element 16 to an insulated electrical safety loop, for example running through the core of the cable
  • the tip of the head or the electrical contact tip 19 presses against a spring-mounted electrical contact plate 22 inside the alarm lock when the locking element 16 is inserted into the lock.
  • the recesses 23, 24 in the relevant sleeve are dimensioned such that the head 20 of the locking element 16 fits straight through, the recesses also having extensions in the circumferential direction (not shown) in which the neck 21 of the solid locking cable 16 can be received when the sleeve is turned in the direction of the double arrow into a closed position.
  • the heads 20 of the locking element 16 are unlocked.
  • the left head 20 would be locked, while the head 20 shown on the right could always be pulled u n in the area of the recess 24 extending over a larger angular sector. Only a further rotation of the sleeve of the lock 14 would then also lock the right head 20. Starting from the position shown in FIG. 2, however, a rotation of 45 ° in the opposite direction would already suffice to lock both heads 20 into the lock 14.
  • the alarm electronics do not necessarily have to be accommodated in the lock or lock housing itself, but can be accommodated in a separate housing, however any manipulation or any attempt at manipulation of the connecting line between the alarm electronics and the lock or on the housing of the alarm electronics itself triggers an alarm if one of the above criteria is met.
  • the positioning of the elements involved should in any case ensure that the inputs and Decoupling of the Uchtes safely at the ends of the fiber optics
  • the corresponding electron then only monitors whether the Uchttsensor receives the light coming from the source via the glass fiber and triggers the alarm as soon as the Uchtei ⁇ fall stops for a specifiable time interval.
  • invisible, ie infrared or ultraviolet electromagnetic frequencies can be used as long as there is a suitable "optical conductor", as well as radiation sources and sensors for this
  • optical security loops there are no options, such as d Detection of a connection between the mechanical and the non-mechanical security loop, as is possible with electrical systems (at least if the mechanical security loop is electrically conductive), on the other hand, an optical security loop has the advantage that it is almost impossible to manipulate it in any way to bridge. Access to a fiber optic cable from outside cannot be coupled out. The optical security loop would therefore have the advantage that it would not be necessary to accommodate it inside the mechanical security loop in order to protect it from manipulation.
  • optical systems could also have the advantage of using less energy z, in particular if a short-term pulse operation of the system is used

Landscapes

  • Burglar Alarm Systems (AREA)

Abstract

La présente invention concerne une serrure à alarme comportant une première boucle de sécurité mécanique et une deuxième non mécanique ainsi que son électronique de commande avec une alimentation électrique et un déclencheur qui déclenche une alarme au moins en cas d'interruption de la boucle de sécurité non mécanique. Cette invention vise à créer une serrure à alarme dont la protection non mécanique ne peut être désactivée par des mesures simples. Cette tâche est résolue grâce au fait que les boucles mécanique et non mécanique sont conçues comme des éléments non identiques différenciables (2, 1).
PCT/EP1993/002582 1992-10-01 1993-09-23 Serrure a alarme WO1994008113A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEP4233012.2 1992-10-01
DE4233012 1992-10-01
DEP4320752.9 1993-06-23
DE4320752A DE4320752A1 (de) 1992-10-01 1993-06-23 Alarmschloß

Publications (1)

Publication Number Publication Date
WO1994008113A1 true WO1994008113A1 (fr) 1994-04-14

Family

ID=25919082

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/002582 WO1994008113A1 (fr) 1992-10-01 1993-09-23 Serrure a alarme

Country Status (1)

Country Link
WO (1) WO1994008113A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114737826A (zh) * 2022-04-19 2022-07-12 珠海格力电器股份有限公司 锁具

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1923185A1 (de) * 1969-05-07 1970-11-19 Siemens Ag Anordnung zur UEberwachung von grossflaechigen Waenden,Decken u.dgl.
US3755778A (en) * 1972-05-04 1973-08-28 J Kennedy Cycle burglar alarm
US3772645A (en) * 1972-01-20 1973-11-13 T P S Inc Costa Mesa Vehicle alarm system
US3824540A (en) * 1972-07-27 1974-07-16 K Smith Bicycle lock and alarm apparatus
DE2939972A1 (de) * 1979-10-02 1981-04-16 Oh Young Seoul Choi Stacheldraht
US4639713A (en) * 1981-09-18 1987-01-27 Honda Giken Kogyo K.K. Theftproof device
US4663611A (en) * 1982-10-15 1987-05-05 Humphrey Chris W Alarm lock
US5191314A (en) * 1990-08-31 1993-03-02 Pacific West Industries Combination anti-theft lock and alarm

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1923185A1 (de) * 1969-05-07 1970-11-19 Siemens Ag Anordnung zur UEberwachung von grossflaechigen Waenden,Decken u.dgl.
US3772645A (en) * 1972-01-20 1973-11-13 T P S Inc Costa Mesa Vehicle alarm system
US3755778A (en) * 1972-05-04 1973-08-28 J Kennedy Cycle burglar alarm
US3824540A (en) * 1972-07-27 1974-07-16 K Smith Bicycle lock and alarm apparatus
DE2939972A1 (de) * 1979-10-02 1981-04-16 Oh Young Seoul Choi Stacheldraht
US4639713A (en) * 1981-09-18 1987-01-27 Honda Giken Kogyo K.K. Theftproof device
US4663611A (en) * 1982-10-15 1987-05-05 Humphrey Chris W Alarm lock
US5191314A (en) * 1990-08-31 1993-03-02 Pacific West Industries Combination anti-theft lock and alarm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114737826A (zh) * 2022-04-19 2022-07-12 珠海格力电器股份有限公司 锁具

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