EP0030587A1 - Dispositif d'immobilisation électronique - Google Patents

Dispositif d'immobilisation électronique Download PDF

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Publication number
EP0030587A1
EP0030587A1 EP80105643A EP80105643A EP0030587A1 EP 0030587 A1 EP0030587 A1 EP 0030587A1 EP 80105643 A EP80105643 A EP 80105643A EP 80105643 A EP80105643 A EP 80105643A EP 0030587 A1 EP0030587 A1 EP 0030587A1
Authority
EP
European Patent Office
Prior art keywords
circuit
power source
unlocking
electric driver
voltage
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Withdrawn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
EP80105643A
Other languages
German (de)
English (en)
Inventor
Noboru c/o IWASAKI ENGINEERING CO. LTD. Yamada
Kazuyuki IWASAKI ENGINEERING CO. LTD. Shiiba
Ryoichi IWASAKI ENGINEERING CO. LTD. Kitanishi
Kenji Iio
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.)
Iwasaki Engineering Co Ltd
Original Assignee
Iwasaki Engineering Co 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
Priority claimed from JP17274979A external-priority patent/JPS5697077A/ja
Priority claimed from JP801380A external-priority patent/JPS56105077A/ja
Priority claimed from JP3838580A external-priority patent/JPS56135680A/ja
Application filed by Iwasaki Engineering Co Ltd filed Critical Iwasaki Engineering Co Ltd
Publication of EP0030587A1 publication Critical patent/EP0030587A1/fr
Withdrawn legal-status Critical Current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
    • G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00674—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with switch-buttons
    • G07C9/0069—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with switch-buttons actuated in a predetermined sequence

Definitions

  • This invention relates to an electronic locking device for locking or unlocking by memory and relational computing process of the code information given by key input of external memory code.
  • Another disadvantage is that the unlocking of doors or suit cases becomes also impossible when the battery voltage as the power source of the micro-computer is consumed or in trouble, the memory is cancelled by some trouble in the circuit composed of a number of electronic parts or when any other function of the computer fails while the door or suit case is being locked because the solenoid or motor is not operated by regular key input.
  • Another object of the invention is to offer a device that makes unlocking operation more confidential simply.
  • a further object of the invention is to offer a device that unlocking can be made simply and quickly with confidence when the micro-computer control unit fails to function only if the driving power for the solenoid or motor is normal, and should the driving power source is in trouble in addition, unlocking can be also with an readily available external power source.
  • a still further object of the invention is to offer a device that enables easy unlocking by utilizing an external power source when the incorporated power system or computer is out of order so as to make it easy to handle in case the code is foregotten, although the performance for confidental preservation becomes somewhat lower.
  • Fig. 1 is a large sized suit case mounted with an electronic locking device of the present invention and the casing 1 is made of duralumin and the electronic locking device 2 is attached to the center of the casing.
  • a key button control board 3 is placed several mm below the panel surface of the locking device 2 on which ten number keys and four function keys are provided.
  • the receptacle of 10 core connector 5 is provided close to the clasp(4B) of the casing 1, which functions as the external power source terminal for abnormal unlocking and is normally closed by a cover that can be mounted or dismounted freely, though it is not illustrated.
  • the magnetic solenoids 6A, 6B shown by dotted lines are attached to the inside of the casing 1 and used as the control terminal to lock or unlock the clasps 4A, 4B by key input (code numbers) into the electronic locking device.
  • the control unit 12 of the micro computer for operation process of the said key input is provided on the lower face of the key button control board 3 as shown by the dotted line, and the power source, DC6V mercury lamp for instance, is attached to the same place so as to be replaced.
  • Fig. 2 is the block diagram showing the circuit composition of an electronic locking device by this invention.
  • power switch (S) is to be turned on for locking or unlocking when the incorporated ordinary power source 11 is normal
  • key (C) is the clear key to cancel the number keys 10 from the memory when the code number is set incorrectly
  • key (L) is the lock key to operated the solenoid 6 for locking after setting a code number correctly by the number keys 10.
  • the power is turned off by the said key (S).
  • Key (U) is the unlocking key to be pushed to operate the solenoid 6 for unlocking to open up the suit case after turning on the power by the said key (S) and then setting the said code number by the number keys 10.
  • the control unit 12 functions to memorize a specific code number from the control board 3 into the memory circuit 12A to compare the memorized number in the comparison circuit 12B with the number set on the control board 3 at locking or unlocking, and to give the output of lock signal (Sl) or unlock signal (Su) from the control circuit 12C to the driving circuit 13 only when the compared numbers are in agreement.
  • the block shown by dotted line 14 is an indicator, which is to provide close to the control board 3 and indicates the code number set by crystalline liquid letters.
  • the dotted line 15 is the commercial power source used for building doors and others, the incorporated ordinary power unit 11 is used for commutation and also as a constance voltage equipment.
  • this incorporated ordinary power unit 11 is a mercury battery of DC6V, as described above, and also functions as the power for the control unit 12 as well.
  • One of the key point of the present invention is the part enclosed by the dotted frame 21 in Fig. 2, in which the receptacle of 10 core connector 5 has the socket connetors P1 to P10, which are can also be pins.
  • the voltage of the ordinary power unit 11 is normally applied to the judging circuit of voltage 22, and when the foltage level is over DC5V, at which the solenoids 6A, 6B function normally, the signal (Sn) of normal voltage is given to the power switching circuit 23, and when it is below DC5V (including OV), the signal (Sa) of abnormal voltage is supplied.
  • the power switching circuit 23 is so composed that no output is made at the output terminals 26, 27 however voltage is applied to the input terminals 24, 25 through the external terminal 5 so long as the said input signal is (Sn) i.e. the power source 11 maintains the voltage above the specified level. If the life of the mercury battery 11 is expired (or if the commutation equipment is in trouble) and the device does not function normally, a readily available power such as automobile battery (DC12V), for instance, is used as the external power source 28, or the clasp 4A of Fig.
  • DC12V automobile battery
  • the switching circuit 23 gives the output of the above DC12V to 26, 27 and operates the solenoides 6A, 63 through the operation terminal driving circuit 13 making it possible to unlock because the input signal from the voltage judgement circuit 22 is (Sa) as described above. Then the suit case can be opened by the manual locking device of the clasps 4A, 4B.
  • the above method to use the clasps directly as the external power source terminals is simple and accordingly the cost is lower, but has a disadvantage in keeping abnormal unlocking operation confidential. That is, the unlocking method will also become known widely as the suit cases of this type become popular. Accordingly, multi-core connector of higher secret retaining performance is used as an embodiment of the present invention.
  • terminals 51, 52 are respectively (+). and (-) of the ordinary power source 11, and each one of the NPN transistor of emitter earthing type 53, 54, 55, in which the transisitor 55 has a large current amplification factor ( ⁇ ).
  • a zener diode of 3V breakdown voltage 56, diodes 57,58, the resistor 60.and the condenser 61 are provided in the voltage judging circuit 22 and power source switching circuit.
  • the signals from the control unit 12 stop and the transistor 53 is turned off.
  • the external power source voltage of DC12V is applied to the terminals 31, 32, the voltage is turned into unlocking voltage of DC6V by the diode 57 and resister 59, and the zener diode 56 is turned on again.
  • the base voltage 54B of the transistor 54 is applied being delayed by the time (TL) determined by the time constant elements 60, 61, 0.3 sec. for instance.
  • the transistor 55 is turned to on (I 2 is generated) since the base current flows through the base 55B as soon as the above DC12V is applied, and the unlocking voltage of DC6V is applied to the solenoid 6 for abnormal unlocking operation and is turned off after the above mentioned 0.3 sec.
  • a lamp or buzzer may sometimes be provided on the control board.
  • Many other compositions are also conceivable.
  • Fig. 4 is the block diagram 4. 5V for stable use of the battery voltage and intending for earlier replacement of the battery as mentioned above.
  • the locking preventive drive circuit 44 is operated by this signal (SA), and the voltage (V A ) slightly lower than the specified DC4.5V, 4.4V for instance, is supplied to the auxiliary solenoid 45 and also to the main solenoid 6M.
  • the setting of the operation level for the auxiliary solenoid 45 is at 4.5V (minimum operation level 3.4V), and by the input of this voltage (VA), the automatic unlocking and locking preventive mechanism 46 is operated through the action A1 shown by continuous line.
  • the main solenoid 6M applies the operation of the action A2 to the normal locking mechanism 43 by above voltage (VA), i.e. 4.4V, for mechanical coupling A3 with the said mechanism 46. If the normal locking mechanism 43 is at locked condition, the mechanism is unlocked, and if it is at non-locked condition, it does not react to the input of locking signal (SL) given by key input through the driving circuit 13, and the mechanism is kept being unlocked.
  • VA above voltage
  • SL locking signal
  • a scissors-shaped compression spring 73 having one end as the fulcrum point (not shown) keeps pushing the lock shaft in the direction (b) at all times.
  • the locking plate 75 has a lock hole 75H and is connected and fixed to the lock shaft 72.
  • the top end of the movable piece 76 of the main solenoid 6M described in Fig. 4 is inserted into the lock hole 75H, and it moves up and down with the shaft 77 supported by the bearing on the cover 73 as the fulcrum point by the drawing force of the solenoid 6M and by the pulling force of the tension spring 78.
  • the solenoid 6M functions to draw the movable piece 76 and the top 76T1 of the movable piece 76 goes out of the lock hole 75H.
  • the knob 7 is pushed in the direction (a), therefore, the hook 8 is sprung up to the position 8', and the suit case can be opened.
  • FIG. 5 an auxiliary solenoid 4 5 mounted on the solenoid fixing plate 80.
  • the movable piece 92 is connected to the tension spring 94 and the balance weight 95 with the shaft 93 supported by the bearing provided on the fixing cover as the fulcrum point. It is drawn to the solenoid when a voltage slightly lower than the specified voltage, (VA) in Fig. 4 is applied.
  • Fig. 6 shows an oblique view of the mechanism of Fig. 5 excluding the said solenoids 6A, 45 from the bottom side, and the top end 92T of the said movable piece 92 is inserted into the latch hole 96H on the latch plate 96.
  • the bent parts 96A at both sides of the latch plate 96 are inserted into the two grooves 73S on the fixing cover 73, and the top ends of the bent part 96AT are bent further. Accordingly, the latch plate 96 is supported by the fixing cover so as to move freely along the said grooves 73S.
  • the bent part 96P at the left end of the latch plate 96 shown in Fig. 5 is always pushed in the arrow direction of Fig. 6 by the spring force (F) at the free end 99T of the scissors-shaped compression spring 99 which is connected to the pin 97 and the knock 98 on the fixing cover.
  • the square notch 96K at the right end of the latch plate 96 is wider than the top end width 96T1 of the said movable piece 76 and is narrower than the root width 76T2.
  • the main solenoid 6M functions when the battery voltage drops and the auxiliary solenoid 45 is operated by the voltage (VA), the movable piece 76 is drawn upward of Fig. 6, the novable piece 92 of the said auxiliary lolenoid 45 is also drawn upward at the same time, and the latch plate 96 released from the top end 92T is pushed out by the spring force (F) of the spring 99 inserting the top end 76T1 of the said movable plate 76 into the notch 96K.
  • This operation is the coupling A3 of Fig. 4.
  • the locking of the lock shaft 72 in Fig. 5 is released, thus the suit case can be opened by pushing the unlocking knob 7 into the arrow direction (a) with a-finger.
  • the main solenoid 6M can never be operated by any key input if the power source 19 of the control unit is normal and so long as the power source 11, i.e. DC6V battery is not replaced with a new battery. Accordingly, the movable piece 92 is kept being caught by the latch plate 96 and the lock shaft 72 can not be locked. Even if the power to both solenoids is cut off, the mechanical coupling between the latch plate 96 and the movable piece 76 is not disengaged and the locked condition is maintained.
  • the knob is pushed in the direction (b) after replacing the battery, the left end bent part 72C of the lock shaft in Fig. 5 pushes back the bent part of the latch plate 99P against the spring force of the spring 99 and the original condition of Fig. 6 is restored.
  • the driving power source for the solenoid or motor in these embodiments a battery is used.
  • This composition is also applicable to other cases where commercial power source is used by commutation to building doors, for example, and when the voltage goes down below the specified level due to a trouble of the component part, except for such troubles as power failure or zero voltage. That is, the same operation is made when the voltage drops down to the minimum operating voltage of the main solenoid or the motor.
  • the mechanism and circuit composition are not limited to those - illustrated in Fig. 5, Fig. 6 and Fig. 7, and many others are also conceivable, all of which are of course within the scope of this invention.
  • the device of this embodiment there is no need to provide any special micro-coumputer that has the unlocking function at ⁇ abnormal condition, but the clock pulse of square wave always generated by ordinary micro-computers for the timing control is used. Troubles in the micro-computer or in the power source is immediately detected by the suspension of the said clock pulse, and abnormal control signal output is given by a simple electronis circuit composition.
  • the small holes 9A, 9B at the upper center of the clasps 4A, 4E are the external power source connecting terminals for abnormal unlocking when the ordinary power source to drive the solenoid of D C6V is out of order.
  • D C12V is taken out of an automobile battery, for example, with lead wires, and the positive (+) side is passed through the small hole 9A of the clasp 4A and the negative (-) side through the small hole 9B of the clasp 4B.
  • the positions of the small holes 9A, 9B are not necessarily be at the points as illustrated and the lead wires may also be connected to the metal parts of the clasps using alligator clips without providing any small hole.
  • Fig. 8 is the block diagram to show the circuit configuration of the elctronic locking device by this invention.
  • One of the key point of this invention is the block double enclosed by continuous line and dotted line in Fig. 8 and the signal system.
  • the clock pulse generating circuit 12P is generally provided for the timing control of the control unit 12.
  • the control unit 12 which is by the power source 19 and is composed of CMOS (Complementary Metal-Oxide Semiconductor)
  • the pulse system in the control unit 12 is omitted.
  • the detection circuit 111 of the suspension of the said clock pulse (Pc) is one of the key points of this invention. Though the detailed circuit compostion of the embodiment is described in the following text along with drawings, the function is to take out the differential output of square wave while the said clock pulse (Pc) is supplied for the switching operation of the transistor switch and also to limit the maximum voltage of the intergral wave form generated at the capacity load of - the transistor below a certain level.
  • the external power source 28 (automobile battery as mentioned before for example) is connected to the external power source terminals 9A, 9B provided on the clasps 4A, 4B as shown by the dotted lines, then the solenoid unlocking voltage is realized by the diode 112 and the resistor 113 and unlocking by the solenoids 6A, 6B is made. Since the abnormal unlocking by the external power source 28 is effective only when the control circuit 12 is in trouble or the power source 19 is out or order, there is no need of particulary high confidential performance of the external power source terminals 9A, 9B.
  • the input of the clock pulse (Pc) is supplied to the input terminal 116 of the detection circuit 111 in the wave form as shown in Fig. 10 A.
  • the voltage (V 1 ) is DC5V.
  • the output voltage (V 2 ) of the resistor 117 is in the wave form as shown in Fig. 10 B.
  • the output wave form of the differrential condenser 118 is as shown in Fig. 10 C, and the voltage (V 3 ) is about 0.6V.
  • a diode 119 absorbs the negative output (-V 3 ) of the differential wave.
  • a transistor switch 120 of emitter earthing NPN type when the differential output (+V 3 ) of Fig. 10 C is applied to the base 120B at the frequency(t 1 ) to (t 3 ), the emitter current (I L ) is switched and charging and discharging of the capacity load of the condenser 121 connected to the collector 120C are repeated..
  • the resistor 122 in series with the power ource 11, which determins CR time constant together with the condenser 121. If the integral wave (V 4 ) as shown in Fig. 10 D is so composed to become 2.5V, discharging is made before the breakdown voltage 3V of the zener diode 123 is reached, the saw tooth wave-form as shown in Fig.
  • the transistors 125, 126 amplify the voltage (V 5 ) respectively, and both of them are turned on when the zener diode 123 turns on, to supply abnormal signal (S A ) to the said driving circuit 13 for unlocking operation of the solenoids 6A, 6B.
  • a device that allows easy operation for abnormal unlocking yet has a high confidential performance to ensure the use with no worry, in which a proximity switch that is turned on by changing the magnetic field of the external power source circuit from outside in series is provided at a specific position so as to keep the high confidential performance at the unlocking operation by external power source in such abnormal coditions where the ordinary power source circuit is in trouble or the voltage drops.
  • the lead switch 132 shown by the dotted line and held by an adequate retainer 131 at the left inside of the case is one of the key points of the present invention, that is conducted by a magnetic change from outside to turn on the circuit when a permanent magnet is put close to the switch, or to turn on the circuit when a ferromagnetic material such as an iron piece is put close to it.
  • the former is called 2-pole type lead switch and is made of a glass tube of 3 - 5mm O.D.
  • vacuum type or inactive gas sealed type in which a pair of lead wires made of a ferromagnetic material and treated by contact member at the top surface are placed facing each other, and the lead wires arc drawn to clcse the circuit by external magnetic field.
  • the latter is a kind of microswitch having a permanent magnet attached to the inside leads, which functions to close the circuit drawn by a ferromagnetic material such as an iron piece put close to it.
  • These magnetic switches are easier to mount than other switches such as push-button switch or thermal or photo-electric switches, and the mounted position is not known from outside, accordingly, the unlocking operation can be more confidential.
  • the terminals (MA) (MB) are either one of the above switches.-Besides the primary function for locking and unlocking operated by the magnetic solenoid 6 shown by the dotted line below the clasps 4A, 4B of the suit case 1, they are so composed as the external power source connecting terminal for abnormal unlocking at a trouble in the power source system, which is one of the key points of the present invention.
  • the external power source DC12V is taken out with lead wires from an automobile battery, in the same manner as described before for previous embodiment, and the positive (+) wire is inserted into the small hole 9A on the clasp 4A and the negative (-) wire into the small hole 9B on the clasp 4B.
  • the positions of the small holes 9A, 9B are not limited to those illustrated, and as mentioned before, it is also possible to have the same effect simply by connecting the lead wires to the metal parts of the clasps without providing any small hole.
  • This arrangement makes it impossible for other persons who are not allowed to open the suit case to unlock the electronic locking device even when they come to know that the clasps 4A, 4B are the external power source terminals, unless they know that a magnet or an iron piece is required and also to which point on the suit case the magnet or the iron piece must be placed.
  • a lead switch 132 is provided on the inner wall of the suit case and is turn on by a ferrite magnet 133 putting close to the case 1 from outside as shown by the arrow (a). If the switch 132 i ' s a magnetic switch, the magnet 133 can be a piece of iron.
  • the position of this switch 132 in the suit case is a kind of code known only by the owner of the suit case and this forms the code for abnormal unlocking in combination with the use of the magnet 133 or a piece of iron.
  • the unlocking mechanism and operation by a specific person to open the suit case at an abnormal condition of the power source is as described above.
  • the zener diode 56 is turned on at normal condition when the above mentioned output signals (Sl) (Su) are supplied from the control unit 12 to the base of the transistor 53 as the driving circuit and yet the voltage of the power source 11 is above the specified level, i.e. DC5V, the transistor 54 is conducted, and a large emitter current (I 1 ) flows. Accordingly, the external voltage of DC12V is applied to the terminals 9A, 9B, base current does not flow through the base 55B of the transistor 55 hence the transistor 55 is turned off, and no current (I 2 ) flows.
  • the device according to this invention provided with a simple abnormal unlocking code information process circuit that replaces only the unlocking function of the micro-computer under abnormal condition where the micro-computer fails to operate due to a trouble in the power source system or in the circuit.
  • the proximity switch 142 retained by an adequate retainer 141 at right side of the suit case 1 is one of the key points of this invention, which is the change-over switch to convert the normal solenoid driving power source, DC6V mercury battery, into the key button circuit when the control unit 12 goes out of order (including a trouble in the exclusive power source).
  • This change-over switch is a lead switch of single-pole double-throw type or a proximity switch that incorporates a magnet to be operated by field alteration from outside of the suit case 1.
  • the contact is switched (MC - MD) to (MC - ME) and the said power source connected to the contact (MC) is switched over to the common of the key button circuit.
  • the switching is not necessarily limited to the proximity switch 142.
  • the invention also includes the circuit switching key (B) by a key button provided on the control board 3 for more simple operation although the confidential performance becomes somewhat lower.
  • Fig. 13 is the block diagram showing the circuit configuration of an electronic locking device by the present invention.
  • One of the key point of this invention is the blocks enclosed by the alternate long and short dash line 21, and their signal systems.
  • the abnormal unlocking judging circuit 143 as one of the essential factors of this invention.
  • Memorized preliminary in the circuit is the code (Xa) for unlocking under abnormal condition where the control unit 12 fails to operate due to consumption of the power source 19 or a trouble of any electronic part. It is then judged whether or not the number set by the key board 3, to which the signal voltage source as described below is applied, for key input agrees with the memorized number. Only when the two numbers are in agreement, the input to the input terminal 145 and the output to the output terminal 146 are made by the gate circuit 144.
  • the magnet 133 or a piece of iron is put close to the proximity switch 142 then the movable contact (Me) is switched to (ME), and the positive voltage (+V10) of the power source 11 is applied to the key board 3 and the gate circuit .144.
  • the positive voltage (+V10) is above the specified level, DC5-6V for example, the judging circuit 143 and the gate circuit 144 function normally. Accordingly, if the above mentioned unlocking code (Xa) is selected out of the number keys 10 and the number is pushed, the circuit 143 judges agreement, turns on the gate circuit 144 to apply the said positive voltage (+V10) to the solenoids 6A, 6B, and they are driven for unlocking.
  • the external ower source ciruit 28 having the clasps 4A, 4B as the connection terminals 9A, 9B is provided, and the diode 112 and resistor 113 are provided in series with the positive terminal 9A.
  • the voltage of the external power source 28 for example 12V when an automobile battery is used, is adjusted to 5 - 6V of the power source 11.
  • the key (B) in dotted circle on the key board 3 is the circuit switching key to take place the proximity switch 142, as mentioned before, to be pushed simultaneously when the said number key 10 is pushed.
  • Transistor inverters (10 19) which is so called signal inversion amplifier, generates the digital signal (L)of a low voltage, 0.2V for example, at the output terminal (b) when the digital signal (H) of a higher voltage than a threshold level (1.3V for example ) is supplied to the input terminal (a).
  • the lead wires at the output side ( L ) are terminated at the terminal (C'), which is fixed to the insulation.
  • the connection line 148 between the amplifier (OA) and the terminal (d) intersecting the lead wires (l) at right angles is the code setting line and is electrically insulated from the above ten lead wires (i) before setting.
  • the programing procedure for the memory of the abnormal unlocking code (Xa) by means of the inverter group (Io - 19) goes as follows. If the code is the 3-digit number of "248", the key circuits of 2, 4 and 8 are connected to the said line 148 with three short pins' 149 as shown by black circles in the drawing. The connection is made by inserting the. pins into the pin board. The output lead wires (l) of the remaining inverters (0, 1, 3, 5, 6, 7 and 9 are also connected in the same manner to the short pins as shown by the marks (X).
  • the voltage (+V10) is applied at each point of the black circle when the keys (2, 4 and 8) are pushed at a time and the signal (H) is given. Since the other seven keys are not pushed, the output of the respective inverters (Io- I9) invert the input (L) as described above for output of the signal (H). While the ten inverters are connected in series by the lead 148, the output of AND circuit becomes the signal (H). Since the voltage (+V1) is applied to the power source terminals of respective inverters, though they are not illustrated, the said signal (H) is supplied to the amplifier (OA), the current is amplified, and the solenoids 6A, 6B are operated.
  • the inverter output of the circuit is turned to the signal (L), the output of AND circuit is then turned to the signal (L), the solenoids are not operated, thus the unlocking fails.
  • the unlocking code (Xa) is memorized in this manner by the setting program of the short pins 149, and the gate is kept off unless the number keys of the circuits with black circles in Fig. 14 are pushed at a time. In other words, the simultanous pushing of the number keys generates the signal (SH) by the judging circuit 143 shown in Fig. 13. Since the short pin program can be changed freely at any time, the unlocking can be kept highly confidential.
  • the code (Xa) is not limited to the above mentioned 3-digits and ordinarily 2 to 5 digits are used. Theoretically, one digit will do but it is not recommendable since the unlocking can be made if the ten keys are pushed one after another. Referring to Fig. 15, to improve the confidential performance further, provide more than one number of code line 148' to set the short pins 149 shown in Fig. 14 at random, compose the NAND circuit with 3-input AND circuit 150 and the inverter 151, and set the signal of agreement by the output.
  • the small holes 9A, 9B are provided on the clasps 4A, 4B of the suit case 1 as the connection terminals holes to the external power source, and no proximity switches are provided in this embodiment.
  • the external power source DC12V is taken out of an automobile battery with lead wires and the top ends are inserted into the holes, positive wire to the hole 9A and negative wire to the hole 9B.
  • the positions of the small holes are not necessarily be as illustrated, and alligator clips may also be used on the top of the lead wires without providing the holes.
  • Fig. 16 is the block diagram to show the circuit composition of the embodiment by this invention.
  • One of the key point of this invention is the external power source circuit connected to the terminal 6C of the solenoids 6A, 6B directly from the diode 112 which is connected in series with the positive external power source terminal 9A with lead wires 29, 30 from the external power source 28.
  • the unlocking is made simply by the operation to connect the external power source 28 to the external power source terminals 9A, 9B irrespective of the voltage of the ordinary power source 11, i.e. normal voltage above the specified level or abnormal voltage below the specified level, and also with no regard tp the condition of the micro-computer control unit 12, i.e. normal or in trouble.
  • the external power source terminal of this invention is not limited to the clasps 4A, 4B as shown in Fig. 1, and can be provided, of course, at any place of the suit case.
  • the external power source 28 is not limited to automobile batteries either. It may also possible to provide the proximity switch 132 shown in F ig. 1 to this external power source circuit. The confidential performance of this embodiment may be somewhat lower.
  • this invention solves such problems that an electronic locking device becomes impossible to unlock due to the voltage drop or a trouble of the power source circuit of the solenoid or small motor for locking and unlocking while the device is being locked, or the problems, though they do not happen very frequently, due to a trouble in the power source system and the circuit system of the micro-computer which contains a number of electronic parts.
  • this invention offers a convenient device that can be used with confidence because it has the means to detect and judge any unusual condition in advance or immediately after it happens, the unlocking can be made simply and quickly with an automatic or redily available external power source, and because the abnormal unlocking operation can be kept highly confidential.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
EP80105643A 1979-12-18 1980-09-19 Dispositif d'immobilisation électronique Withdrawn EP0030587A1 (fr)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP176136/79 1979-12-18
JP17613679 1979-12-18
JP18102579 1979-12-25
JP181025/79 1979-12-25
JP17274979A JPS5697077A (en) 1979-12-28 1979-12-28 Electronic locking device
JP172749/79 1979-12-28
JP801380A JPS56105077A (en) 1980-01-25 1980-01-25 Electronic locking device
JP8013/80 1980-01-25
JP3838580A JPS56135680A (en) 1980-03-25 1980-03-25 Electronic locking device
JP38385/80 1980-03-25

Publications (1)

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EP0030587A1 true EP0030587A1 (fr) 1981-06-24

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EP80105643A Withdrawn EP0030587A1 (fr) 1979-12-18 1980-09-19 Dispositif d'immobilisation électronique

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EP (1) EP0030587A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047486A1 (fr) * 1980-09-04 1982-03-17 Gold- und Silber-Scheideanstalt Oberstein Franz Reischauer Dispositif de verrouillage à codage électronique destiné à des serrures
EP0047487A1 (fr) * 1980-09-04 1982-03-17 Gold- und Silber-Scheideanstalt Oberstein Franz Reischauer Dispositif de verrouillage à codage électronique destiné à des serrures
FR2533340A1 (fr) * 1982-09-17 1984-03-23 Chauvat & Sofranq Reunis Serrure electronique a commande par carte a piste magnetique
FR2580712A1 (fr) * 1985-04-23 1986-10-24 Ferco Int Usine Ferrures Dispositif d'alarme pour dispositif electromecanique de manoeuvre commande par un code
EP0223715A1 (fr) * 1985-11-22 1987-05-27 Gérard Michot Serrure à clef mécano-électronique
FR2599569A1 (fr) * 1986-06-02 1987-12-04 Neiman Sa Dispositif de secours pour recepteur de telecommande.
US8638227B2 (en) 2003-10-10 2014-01-28 Shanghai Buddy Technological Co., Ltd. Input device, input method and application of electronic combination lock
CN108412316A (zh) * 2018-02-08 2018-08-17 深圳市晓控通信科技有限公司 一种具有自动更换电池功能的智能型电子门锁

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663867A (en) * 1970-08-24 1972-05-16 Louis P Fister General purpose presettable electro-mechanical combination safety lock device
US3755718A (en) * 1971-09-09 1973-08-28 N Nicholson Combination electric lock
GB1414120A (en) * 1971-11-08 1975-11-19 Lewis Security Syst Ltd Security system for controlling the activities of authorised and unauthorised persons
DE2548889A1 (de) * 1974-11-04 1976-05-20 Cominiere Bruessel Sa Verfahren und elektrische einrichtung zum schuetzen von kassenschubladen, moebeln sowie der tueren von geldschraenken, tresoren und anderen wiederverschliessbaren raeumen
DE2247767B2 (de) * 1972-09-29 1976-08-12 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum unterbrechungsfreien umschalten von einem betriebsstromversorgungsgeraet auf ein ersatzstromversorgungsgeraet
US4148092A (en) * 1977-08-04 1979-04-03 Ricky Martin Electronic combination door lock with dead bolt sensing means
DE2909134A1 (de) * 1978-03-17 1979-09-20 Neiman Gmbh & Co Kg Vorrichtung zur steuerung einer kraftfahrzeugschliessvorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663867A (en) * 1970-08-24 1972-05-16 Louis P Fister General purpose presettable electro-mechanical combination safety lock device
US3755718A (en) * 1971-09-09 1973-08-28 N Nicholson Combination electric lock
GB1414120A (en) * 1971-11-08 1975-11-19 Lewis Security Syst Ltd Security system for controlling the activities of authorised and unauthorised persons
DE2247767B2 (de) * 1972-09-29 1976-08-12 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum unterbrechungsfreien umschalten von einem betriebsstromversorgungsgeraet auf ein ersatzstromversorgungsgeraet
DE2548889A1 (de) * 1974-11-04 1976-05-20 Cominiere Bruessel Sa Verfahren und elektrische einrichtung zum schuetzen von kassenschubladen, moebeln sowie der tueren von geldschraenken, tresoren und anderen wiederverschliessbaren raeumen
US4148092A (en) * 1977-08-04 1979-04-03 Ricky Martin Electronic combination door lock with dead bolt sensing means
DE2909134A1 (de) * 1978-03-17 1979-09-20 Neiman Gmbh & Co Kg Vorrichtung zur steuerung einer kraftfahrzeugschliessvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RADIO AND ELECTRONICS CONSTRUCTOR, Vol. 29, No. 2, September 1975 London C.K. SELLEN "Parallel S.C.R. combination lock" pages 78 to 81 * Page 80, right column to page 81, paragraph 1 * *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047486A1 (fr) * 1980-09-04 1982-03-17 Gold- und Silber-Scheideanstalt Oberstein Franz Reischauer Dispositif de verrouillage à codage électronique destiné à des serrures
EP0047487A1 (fr) * 1980-09-04 1982-03-17 Gold- und Silber-Scheideanstalt Oberstein Franz Reischauer Dispositif de verrouillage à codage électronique destiné à des serrures
WO1982000846A1 (fr) * 1980-09-04 1982-03-18 Stoesser K Dispositif pour le verrouillage electronique code de serrures
WO1982000847A1 (fr) * 1980-09-04 1982-03-18 Stoesser K Dispositif pour le verrouillage electronique code de serrures
US4499462A (en) * 1980-09-04 1985-02-12 Battelle Institut E.V. Circuit arrangement for the electronic code locking of locks
FR2533340A1 (fr) * 1982-09-17 1984-03-23 Chauvat & Sofranq Reunis Serrure electronique a commande par carte a piste magnetique
FR2580712A1 (fr) * 1985-04-23 1986-10-24 Ferco Int Usine Ferrures Dispositif d'alarme pour dispositif electromecanique de manoeuvre commande par un code
EP0199651A1 (fr) * 1985-04-23 1986-10-29 FERCO INTERNATIONAL Usine de Ferrures de BÀ¢timent Société à responsabilité limitée Dispositif d'alarme pour dispositif électromécanique de manoeuvre commandé par un code
EP0223715A1 (fr) * 1985-11-22 1987-05-27 Gérard Michot Serrure à clef mécano-électronique
FR2590616A1 (fr) * 1985-11-22 1987-05-29 Michot Gerard Serrure a clef mecano-electronique.
FR2599569A1 (fr) * 1986-06-02 1987-12-04 Neiman Sa Dispositif de secours pour recepteur de telecommande.
EP0248273A1 (fr) * 1986-06-02 1987-12-09 Valeo Neiman Dispositif de secours pour récepteur de télécommande
US8638227B2 (en) 2003-10-10 2014-01-28 Shanghai Buddy Technological Co., Ltd. Input device, input method and application of electronic combination lock
CN108412316A (zh) * 2018-02-08 2018-08-17 深圳市晓控通信科技有限公司 一种具有自动更换电池功能的智能型电子门锁

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Inventor name: YAMADA, NOBORUC/O IWASAKI ENGINEERING CO., LTD.

Inventor name: SHIIBA, KAZUYUKIIWASAKI ENGINEERING CO., LTD.