EP0557461B1 - Serrure electronique et mecanique et cle pour une telle serrure - Google Patents

Serrure electronique et mecanique et cle pour une telle serrure Download PDF

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Publication number
EP0557461B1
EP0557461B1 EP92902075A EP92902075A EP0557461B1 EP 0557461 B1 EP0557461 B1 EP 0557461B1 EP 92902075 A EP92902075 A EP 92902075A EP 92902075 A EP92902075 A EP 92902075A EP 0557461 B1 EP0557461 B1 EP 0557461B1
Authority
EP
European Patent Office
Prior art keywords
lock
key
electronic
keys
electronic means
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.)
Expired - Lifetime
Application number
EP92902075A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0557461A1 (en
Inventor
Pierre-Emmanuel Muller
Frédéric WEHOWSKI
Roland Arzul
Yves Allart
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.)
Assa Abloy France SAS
Original Assignee
Vachette SA
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 Vachette SA filed Critical Vachette SA
Publication of EP0557461A1 publication Critical patent/EP0557461A1/xx
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Publication of EP0557461B1 publication Critical patent/EP0557461B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00896—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses
    • G07C9/00904—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses for hotels, motels, office buildings or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7051—Using a powered device [e.g., motor]
    • Y10T70/7062—Electrical type [e.g., solenoid]
    • Y10T70/7068—Actuated after correct combination recognized [e.g., numerical, alphabetical, or magnet[s] pattern]
    • Y10T70/7073—Including use of a key
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7051—Using a powered device [e.g., motor]
    • Y10T70/7062—Electrical type [e.g., solenoid]
    • Y10T70/713—Dogging manual operator

Definitions

  • the invention relates to an electronic and mechanical lock of the type which includes mechanical locking means and electromagnetic locking means suitable for being controlled by electronic means of the lock, this lock being intended to be controlled by a key.
  • a mechanical variation suitable for unlocking the mechanical means of the lock and means for storing electronic information suitable for being read by the electronic means of the lock to allow the electromagnetic non-locking of the lock, when the key is authorized.
  • DE-A-3 006 128 describes a key comprising a modifiable key secret code as well as a control device transforming the secret code of the key into an electrical signal for controlling the lock after comparison of the secret code of the key with a code previously stored. It is an electromagnetic control lock; the aim is to obtain a large number of code variants, taking into account the number of magnets necessary for magnetic coding, and therefore the suitable dimensions of the key, while improving, compared to the known device, the security of the lock.
  • the object of the present invention is to provide an electronic and mechanical lock which is simple and practical to use, which can be adapted and mounted on a maximum of types of doors, which ensures security as complete as possible for its purchaser and which allows the latter to easily modify the authorizations or prohibitions on opening the keys, with a minimum of energy consumption.
  • a lock of the above kind is characterized in that, in the memory means, a customer code is stored, assigned to the buyer of the lock, the so-called "normal" keys include the customer code identical to that of the corresponding lock, and in that the power supply of the key is effected by sending sometimes a continuous signal, sometimes clock slots on an electrical connection between the key and the lock, to ensure the load of an energy recuperator, all the signals exchanged between the key and the lock being transmitted by a single bidirectional line and earth.
  • the electronic means of the lock are powered by one or more batteries provided in a box associated with the lock, while the keys associated with the lock do not include any source of energy.
  • the lock is advantageously equipped with a micro-switch arranged in such a way that the electrical supply of the electronic circuits of the lock is established, subject to a possible low permanent standby supply, only at the end of introduction. of the key in the lock, by closing the microswitch, and is cut, after a time delay corresponding to all of the processing to be carried out on the information subsequent to the introduction of the key, by the electronic means of the lock.
  • the electronic means of the lock include a microcontroller which is programmed to execute the sequence initial start of its program when the circuits are supplied with power when the microswitch closes, at the end of the key introduction, in order to read the client code of the lock and supply the key with electrical energy, microcontroller then carrying out the electronic interrogation of the key so as to compare the client code of the key with that of the lock, and, in the event of code identity, so as to establish whether the identification code of the key is authorized or prohibited from opening.
  • the customer code is read in the lock and the key is supplied with energy to reduce the overall operation time.
  • the microcontroller controls electromagnetic locking means arranged in a bistable manner, then cuts off the power supply to the electronic means of the lock, subject to a possible permanent low standby power supply.
  • the microcontroller Before ensuring that the power supply to the electronic means is cut off, the microcontroller performs information processing and / or storage.
  • the microcontroller of the lock is programmed to cut the power supply to the key and the electronic means of the lock, subject to low power permanent standby.
  • the electronic and mechanical lock is combined with a system key held by the manufacturer of the lock, this system key not making it possible to open the lock, but comprising electronic information which makes it possible to reprogram, in the memory of the electronic means. of the lock, the client code which constitutes the data corresponding to a mother key different from the initial mother key, the new mother key being established by the manufacturer of the lock and supplied to the user.
  • the lock comprises connection means for a computer console and the microcontroller is programmed to allow, when the system key has been engaged in the lock and that a connection has been established between the lock and the said console part of the information stored in the memory of the electronic means of the lock, by making this information appear on the screen of the console, and reprogram at least certain parts of the memory of the electronic means of the lock from the keyboard of the console.
  • This console can be of the "Minitel" type.
  • the microcontroller may include a programming allowing the computer console to be used for tests of control and / or maintenance of the electronic means of the lock.
  • Visual and / or audible warning means of the wear of the electric supply batteries can be provided, as well as means making it possible to indicate the state of these electric batteries.
  • the electronic lock of the invention is advantageously of the cylinder lock type, with a profiled cylinder, in particular with a European profile.
  • the electronic lock then comprises a sub-assembly formed by the electronic box itself, and the profiled cylinder on which are provided electromagnetic blocking means of a bit, the connection between these electromagnetic blocking means of the bit, the detection switch of arrival of the key at the bottom of the barrel and the line of communication with the key on the one hand, and the housing on the other hand being ensured by a flexible cable long enough to allow easy adaptation of the mounting of the lock on a maximum number of door configurations, the connection between said flexible cable and said profiled cylinder being ensured by a removable connector disposed behind the profile of the cylinder, at a distance from the end of the latter disposed inside the excess thickness that constitutes the cover which covers the electronic means of the lock, said excess thickness being measured relative to that of the faces of the associated door to the lock on which said cover is applied.
  • the box can be equipped with a screen and several keys are provided to authorize or prohibit electronic opening of a normal key and / or to display the identification code of a normal key inserted in the lock and / or to deactivate the electronic means of the lock.
  • the electronic means can include a clock / date circuit and a memory circuit for storing the inputs, and a microcomputer is specially assigned this type of lock and is programmed to send instructions allowing an electronic prohibition to open certain keys, setting the time on the clock, interrogating the last entries, interrogating and management of authorizations, in particular timetables, of keys.
  • the invention also relates to a key comprising a mechanical variation suitable for unlocking the mechanical means of the lock, as defined above, and means for storing electronic information suitable for being read by the electronic means of the lock to allow the electromagnetic non-locking of the lock, when the key is authorized, characterized in that it also comprises a single contact (32) capable of coming into electrical connection with a contact (33) associated with the lock, all the signals exchanged between the key and the lock being transmitted by this single bidirectional line and ground.
  • the key comprises an energy recuperator intended to be charged from the lock for the supply of the circuits of the key, a memory circuit, a circuit for decoding the signals received from the lock with regeneration of a clock signal in phase with that of the electronic means of the lock and regeneration of the reading and writing protocols for said memory circuit, a circuit for decoding the reading and writing protocols and a circuit adding messages suitable for adding information, originating from the key, to a pure clock signal from the lock, this message adding circuit operating only after a reading protocol sent by the lock.
  • Figure 1 of these drawings is a simplified schematic view of an electronic and mechanical lock according to the invention, on the side of the interior face of a door.
  • Figure 2 is a schematic vertical section of the lock of Figure 1.
  • Figure 3 is a plan view, on a larger scale of a "normal" key.
  • Figure 4 is a block diagram of the circuits of a normal key, allowing the mechanical and electronic opening of the lock.
  • Figure 5 is a block diagram of the electronic part of a lock according to the invention, corresponding to a low end.
  • Figure 6 is a plan view of a mother key.
  • Figure 7 shows, similarly to Figure 6, a system key.
  • Figure 8 is a detail view of the screen of Figure 1, for a key ban.
  • Figure 9 is a block diagram of an electronic lock according to the invention, corresponding to a high-end.
  • the lock 1 is of the profiled cylinder type 2, in particular to the European profile which, as visible in FIG. 1, comprises an upper circular part extended downwards by a part with parallel faces and with a rounded lower end convex towards the 'outside.
  • a mechanism M schematically represented, comprising in particular the bolt, permanently mounted on the door, in particular by embedding in the edge of this door.
  • the cylinder 2 is held in position by a screw t schematically shown and called the headrest screw. This screw crosses the edge of the door and is parallel to the plane of this door.
  • Cylinder 2 includes an external stator and, rotatably mounted in this stator, a rotor 3 which can rotate.
  • the rotation of the rotor 3 makes it possible to rotate a bit 4 suitable for actuating the mechanism M of the lock, so as to move the bolt from an unlocking position to a locking position or vice versa.
  • the rotation of the rotor 3, relative to the stator of the cylinder 2, is normally prevented by mechanical locking means 5, advantageously constituted by flakes or pins movable radially relative to the rotor 3.
  • mechanical locking means 5 advantageously constituted by flakes or pins movable radially relative to the rotor 3.
  • These flakes or these pins conventionally, are biased by springs so as to block the rotation of the rotor 3; when a conforming key 6, comprising an appropriate mechanical variation 7, is introduced into the slot 8 of the rotor, the cooperation of the mechanical variation 7 with the various flakes, or the like, makes it possible to radially erase these flakes so that the rotation of the rotor can be obtained by acting on the key.
  • the lock comprises electromagnetic locking means 9 mounted in the stator of the profiled cylinder 2. These means 9 are suitable for being controlled by electronic means E of the lock 1 so as to authorize or prohibit the rotation of the rotor 3.
  • the means electromagnetic blocking 9 may be constituted by a blocking member such as a reduced size electromagnet having a movable core which can take two positions; for one of these positions, the rotation of the rotor 3 can be carried out normally using a conforming key from a mechanical point of view, while for the other position of the movable core, the rotation of the rotor 3 is blocked relative to the stator of the cylinder 2.
  • the electromagnetic blocking means 9 are of the bistable type and remain in their position when the electrical supply is cut off. Electromagnetic locking means of this type are covered by the aforementioned patent application FR 89 16039.
  • the electronic means E of the lock are arranged in a housing 10 fixed on the inner face of the door P on which the lock is mounted.
  • a flexible cable 11, with several conductors, is provided to establish the electrical connection between the electronic means E and the profiled cylinder 2.
  • This cable 11 has a length sufficient to allow adaptation of the housing 10, to which the profiled cylinder 2 is connected , to a large number of lock configurations already in place on a door.
  • the distance D between the axis of the housing for the profiled cylinder 2 and the axis of a square hole 12 intended for controlling the door using a button or a handle may vary from one type of lock to another.
  • the electronic means E arranged in the housing 10 and the cylinder connected to these means by the cable 11 form a sub-assembly which can be adapted immediately to a lock already in place on a door, the profiled cylinder 2, equipped with the electromagnetic locking member 9 replacing the conventional, purely mechanical cylinder.
  • a metal cover 11b shown in FIG. 2 provided with a window or with a shutter or with a slide allowing access to the programming members in the upper part.
  • the housing 10 is equipped, in the upper part, with a screen 13, in particular with liquid crystal, for the display of various information.
  • two indicators 18, 19, of different colors for example green for the indicator 18 and red for the indicator 19 are provided. These indicators can be constituted by light-emitting diodes.
  • connection between the flexible cable 11 and the profiled cylinder 2 is ensured by a removable connector 11a set back from the profile of the cylinder, at a distance from the end of the latter arranged inside the excess thickness that constitutes the cover 11 b , said additional thickness being measured relative to that of the faces of the door associated with the lock on which said cover 11b comes to apply.
  • the keys 14-17 are intended for the user of the lock for various functions explained below, in particular to allow him to authorize or prohibit electronic opening of certain keys, while the indicators 18 and 19 are intended to inform on the state of wear of the electric battery or batteries for the supply of the the lock.
  • the circuits of the electronic means E are represented in the form of block diagrams in FIG. 5.
  • the means E comprise a microcontroller 20 which receives its electrical energy from a supply 21 constituted by an electric battery.
  • a microswitch s is advantageously provided on the link between diet and the microcontroller 20; this microswitch s is normally open which reduces the energy consumption; closing the microswitch s is ordered when a key has been inserted into the cylinder 2 at the end of introduction of the key. This microswitch s is provided in the cylinder 2.
  • An oscillator circuit 22 sends pulses to an input of the microcontroller 20.
  • a reset circuit 23 and a circuit 24 for detecting wear of the power supply battery are connected to respective inputs of the microcontroller 20.
  • a keyboard 25, corresponding to the keys 14-17 of FIG. 1, allows the user to enter instructions for the management of the memories of the electronic lock.
  • a circuit 26 for controlling the electromagnetic blocking means 9 is connected to a terminal of the microcontroller 20.
  • Memory means 27, specific to lock 1, are connected to microcontroller 20; in these memory means 27 are stored a customer code assigned to the user (buyer) of the lock and a directory of identification codes assigned to keys 6 intended to open the lock.
  • a buzzer circuit 28 (audible warning signal) is connected to a terminal of the microcontroller 20.
  • a circuit 29 is connected to the microcontroller 20 to manage the transmission of electronic information between this microcontroller 20 and a key such as 6.
  • a circuit 21 'for maintaining the power supply is provided to allow an audible signal of low battery, alarm, etc., after the key has been removed.
  • the lock 1 comprises connection means 30, for example constituted by an RS 232 type socket, to allow a connection with a computer console, for example such as that known under the name of "Minitel".
  • the key 6 comprises a set C of electronic circuits illustrated in the block diagrams of FIG. 4, in particular storage means constituted by a memory 31 of electronic information suitable for being read by the electronic means of the lock E in view to allow electronic unlocking.
  • the key 6 comprises a single contact 32 surrounded by insulating material, suitable for coming into electrical connection with an associated contact 33 of the lock constituted for example by a pin pushed elastically into the slot 8 and capable of being erased to allow the key to enter 6, this pin 33 coming to bear against the contact 32 and establishing an electrical connection with the key at the end of introduction of the latter.
  • the electronic information exchanged between the key 6 and the electronic means E of the lock are transmitted by the only bidirectional line corresponding to the contacts 32 and 33 and the earth.
  • the key 6, which will be called “normal key”, and which is suitable for opening the lock 1, does not include a battery but an energy recovery circuit 34 (see FIG. 4) comprising for example a diode and a capacitor , and capable of charging energy when the electrical connection is established between contact 32 and pin 33, from the supply of lock 1.
  • an energy recovery circuit 34 comprising for example a diode and a capacitor , and capable of charging energy when the electrical connection is established between contact 32 and pin 33, from the supply of lock 1.
  • circuit 34 supplies power, in parallel: memory 31; a circuit 36 for decoding the signals received from the lock with regeneration of a clock signal in phase with that of the electronic means of the lock and regeneration of the reading and writing protocols for said memory circuit 31; a circuit 35 for decoding the read and write protocols.
  • An input of circuit 36 is connected to contact 32 of the key.
  • circuit 36 An output of circuit 36, providing a clock signal, is connected to an input of memory 31. Another output of circuit 36, with clock signal, is connected to an input of decoder circuit 35.
  • This circuit 35 is also connected to the contact 32 so as to receive information from the means E of the lock.
  • An output of the memory 31 is connected to a circuit 37 "message adder" suitable for adding to the pure clock signal coming from the lock, a message corresponding to the information read from the memory 31.
  • This circuit 37 which is also supplied in energy from the recuperator circuit 34, operates only after a reading protocol sent by the means E of the lock. Circuit 37 receives clock signals from circuit 36.
  • the electronic circuits of the key 6 are embedded in an insert i made of insulating material, provided in the ring 6 a of the key and extending into the extension 6 b near the start of the key rod 6 c , where is located contact 32.
  • the information stored in memory 31 includes the customer code identical to that of the lock, stored in memory 27, and an identification code specific to the key.
  • This identification code can be, for example, a number.
  • the various identification codes in particular the various digits stored in electronic form, and assigned to each key, are contained in the key directory of the memory 27 of the lock.
  • a set of "normal" keys 6 is formed by a set of keys all having a mechanical variation for the same lock capable of allowing the opening and the same customer code corresponding to the lock; but each normal key has its own identification code which can be authorized or prohibited from being opened by the user of the lock as explained below.
  • This user has, in addition to the set of normal keys, a mother key 37 (FIG. 6).
  • This mother key 37 does not allow the electronic opening of the lock and the introduction of the key 37 into the cylinder 2 causes the systematic electronic locking of the barrel or rotor 3, while ensuring the electrical connection between the electronic circuits of the key mother 37 and means E.
  • the mechanical variation of mother key 37 is identical to that of normal keys 6, and the set C of electronic circuits is similar, but the information stored in memory 31 are different.
  • This information stored in the mother key 37, allows, when it has been inserted into the lock, the lighting of the screen 13 and gives the user the possibility of programming the lock using the four keys 14-17 (low end).
  • the electronic means E of the lock are arranged so that the user, after having introduced the mother key 37, by pressing one of the keys, for example on the key 14, can increment a key number which appears on the screen 13 and by pressing another key, for example key 15, can decrement this number. By holding down one of the keys, the user can quickly scroll through the key numbers, for a quick search.
  • the electronic means E of the lock are arranged so that the user, by pressing a key, for example the key 16, can authorize or prohibit electronic opening, the normal key 6 corresponding to the number "5".
  • the means E are programmed so that the state of the normal key corresponding to the number displayed on the screen 13, is visible in clear on this screen thanks to the lighting of a "logo” immediately making it clear if the key is permitted or prohibited.
  • the "logo” located to the right of the number "5" schematically represents a key and corresponds to an authorization. This "logo” could be supplemented by the letters "OK" to the right of the key.
  • the prohibition "logo” corresponds to a schematic key, crossed out by a cross, located at the bottom right of the number "5".
  • the user can therefore, in a very simple manner, using the mother key 37 of which he is the sole holder, program the prohibitions or authorizations for electronic opening of the normal keys 6.
  • the user may immediately prohibit electronic opening of this key by showing his identification code on the screen 13 and by prohibiting this code.
  • Another normal key, with a different electronic number (identification code) will be authorized to open, replacing the lost key.
  • the microcontroller 20 is programmed so that the user can inhibit the electronic function of the lock by pressing the fourth key 17, while the mother key 37 is engaged in the lock.
  • a flashing "logo" appears on the screen 13 so as to draw the user's attention to this inhibition. If the master key 37 is then withdrawn from the cylinder 2, the lock remains in the state of electronic inhibition and the normal keys 6 will allow the opening of the lock on the only mechanical variation 7.
  • the microcontroller 20 is programmed to ensure a resetting of the various circuits in the micro-switch s is closed at the end of introduction of a normal key 6, and to read, in a first step, the client code of the lock 1 and simultaneously supply the key 6 and its energy recuperator 34 with electrical energy, sometimes sending a continuous signal, sometimes clock slots on the electrical link 33-32 between the lock and the key 6.
  • the microcontroller 20 is arranged to then proceed to the electronic interrogation of the key 6 so as to compare the client code of the key with that of the lock 1 and, in the case of identity of the codes, so as to establish whether the identification code of key 6 is authorized, or prohibited from opening.
  • the operating sequence for lock 1 is as follows.
  • the key 6 is introduced into the rotor of the cylinder 2. Arrival at the end of the introduction, the key 6 actuates the microswitch s which establishes the supply of the electronic means E of the lock. It should be noted that a possible low permanent standby power can be ensured, when the microswitch s is open. The order of microswitch s can be ensured by means of a thrust member f (FIG. 2), sliding through the bit 4, and moved by the end of the key 6 at the end of introduction.
  • a thrust member f FIG. 2
  • the electronics wake up is not immediate and requires three to ten milliseconds for reset.
  • the microcontroller 20 adds, on the clock slots, a message (protocol) for interrogating the memory 31 of the key 6.
  • the key 6 sends to the microcontroller 20 the customer code stored in the memory 31 and the identification code of the key, namely the key number in the example envisaged for the identification code.
  • the microcontroller 20 compares the client codes of the lock 1 and of the key 6.
  • the microcontroller 20 sends the order to electromagnetically lock the lock.
  • the electromagnetic blocking member 9 is in principle not supplied with electrical energy and its supply takes place only if it appears that the key inserted is not electronically authorized. This results in energy savings. Thanks to time optimization, the system reacts very quickly to order an electromagnetic lock in the event that a key not authorized electronically is entered.
  • the electromagnetic blocking member 9 has two bistable positions and an electrical pulse is enough to move the core from one position to another, where it remains, even if the power supply is cut off.
  • the microcontroller 20 cuts off the electrical supply to the key 6 and the other peripherals. Such an arrangement makes it possible to avoid discharging the battery of the lock 1 by a malicious person who would cause a short circuit between the pin 33 for contacting the lock and the earth.
  • the rotor 3 is constantly unlocked from an electromagnetic point of view, which avoids problems in the event of a worn battery. Of course, electronic security disappears, but mechanical security remains and the user is not blocked outside his premises.
  • the element which consumes the most energy is constituted by the electromagnetic blocking member 9 (electromagnet).
  • the electromagnetic blocking member 9 electromagnet
  • Waking the electronics of the lock by the microswitch s allows a substantial energy saving since the electronics is not, or is only slightly, supplied during all periods where it is not to intervene, periods which are much longer than the one where she must intervene.
  • the key 6 does not have a battery which avoids any risk of power failure of the key.
  • the information between lock 1 and key 6 does not pass through a single line and the mass. There is only one contact between the pin 33 and the contact 32 which gives increased reliability.
  • the single contact 32 of the key saves space on the extension between the ring and the key rod.
  • the mass is made up of the metal bodies of the key and the barrel, which, in addition to simplifying wiring, makes it possible to protect the line from parasites, the mass being around the line.
  • the lock 1 is also combined with a system key 38 ( Figure 7) held by the manufacturer of the lock.
  • This system key does not have the same mechanical variation as a normal key and is provided with electronic circuits C similar to those shown diagrammatically in FIG. 4, but the information contained in the memory 31 of the system key 38 does not allow the electronic door opening (as was the case for the mother key).
  • the electronic information stored in the memory 31 of the system key is provided to allow reprogramming, in the lock memory 27, a mother key different from the initial mother key.
  • a new mother key 37 is established by the manufacturer of the lock with a new customer code and is supplied to its holder.
  • the manufacturer of the lock intervenes, at lock 1, to program new information, in particular a new customer code in the lock memory 27. It should be noted that these operations cannot be carried out, by the manufacturer, only from inside the room protected by the lock. In other words, the manufacturer can only make such modifications in the presence or with the authorization of the user of the lock.
  • the manufacturer of the lock uses the computer socket 30 to connect a computer console, for example that known under the name of "Minitel”.
  • the maintenance test can be automatic.
  • system key 38 is provided so as not to allow the functions assigned to the mother key 37 held by the user of the lock to be performed.
  • the old keys 6, as well as the old mother key 37 are no longer suitable from an electronic point of view and are replaced by new keys provided by the manufacturer to the user, these new keys having the same mechanical variation as the previous ones but containing different electronic information.
  • lock 1 is particularly simple since it is carried out from an electronic point of view and there is no need to dismantle or change the lock installed on the door. Only the keys are to be replaced.
  • the electronic and mechanical lock 1 of the invention offers numerous possibilities as regards the programming of master plans, for example for the various doors of a building or a hotel.
  • a first concept consists in adopting for the different locks of the building the same mechanical variation, but a different electronic variation.
  • a second concept consists in adopting a different mechanical variation from one lock to another, but a unique electronic variation.
  • the microcomputer 39 which is made available to the holder of the lock, makes it possible, in particular, to manage the authorization of the keys according to time slots.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
EP92902075A 1990-11-16 1991-11-12 Serrure electronique et mecanique et cle pour une telle serrure Expired - Lifetime EP0557461B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9014270 1990-11-16
FR9014270A FR2669368A1 (fr) 1990-11-16 1990-11-16 Serrure electronique et mecanique et cle pour une telle serrure.
PCT/FR1991/000883 WO1992008864A1 (fr) 1990-11-16 1991-11-12 Serrure electronique et mecanique et cle pour une telle serrure

Publications (2)

Publication Number Publication Date
EP0557461A1 EP0557461A1 (en) 1993-09-01
EP0557461B1 true EP0557461B1 (fr) 1995-02-01

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ID=9402257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92902075A Expired - Lifetime EP0557461B1 (fr) 1990-11-16 1991-11-12 Serrure electronique et mecanique et cle pour une telle serrure

Country Status (7)

Country Link
US (1) US5540069A (enrdf_load_stackoverflow)
EP (1) EP0557461B1 (enrdf_load_stackoverflow)
AT (1) ATE118062T1 (enrdf_load_stackoverflow)
DE (1) DE69107218T2 (enrdf_load_stackoverflow)
ES (1) ES2068026T3 (enrdf_load_stackoverflow)
FR (1) FR2669368A1 (enrdf_load_stackoverflow)
WO (1) WO1992008864A1 (enrdf_load_stackoverflow)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
EP0557461A1 (en) 1993-09-01
ATE118062T1 (de) 1995-02-15
FR2669368B1 (enrdf_load_stackoverflow) 1995-04-21
DE69107218D1 (de) 1995-03-16
DE69107218T2 (de) 1995-06-14
WO1992008864A1 (fr) 1992-05-29
FR2669368A1 (fr) 1992-05-22
ES2068026T3 (es) 1995-04-01
US5540069A (en) 1996-07-30

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