JPS58135274A - Electronic unlocking apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic unlocking device that can be used for safes and the like.

Conventional unlocking devices for safes, etc. are combination locks and cylinder locks.
It was a mechanical device. As a result, it took time to unlock the door, which caused inconvenience in case of emergency.

The object of the present invention is to be able to perform a quick unlocking operation,
Moreover, it is an object of the present invention to provide an electronic unlocking device that can easily obtain high theft prevention properties such that the fulfillment of unlocking conditions is 1 in 100,000,000, for example.

Another object of the present invention is to provide an electronic unlocking device that enables unlocking by operating a combination lock without using the electronic unlocking device or even when the electronic unlocking device is malfunctioning. The purpose of the present invention is to provide a locking device.

The present invention will be explained below with reference to illustrated embodiments.

In FIGS. 1 and 2, a door 2 provided on the front side of a safe body 1 is pivotally supported on the safe body 1 so as to be rotatable about a hinge on the right edge of the figure. The door 2 is provided with a handle 4 for protruding and retracting the bolt 5 from the top, bottom and side surfaces of the door 2, and a handle 4 next to the handle 4 prevents the handle 4 from being rotated and prevents it from rotating. A cylinder lock 5 is provided to allow the lock to be opened, and an insertion slot 6 adjacent to the cylinder lock 5 is provided into which a selector 7 forming a part of the electronic unlocking device is to be inserted.
is provided. A cord 8 is pulled out from the safe body 1 for powering the electronic lock from an AC power source.

In Figure 5, the selector 7 has a numeric keypad 9, an ET-1 key 10 indicating the end of input, etc., and a mounting chamber 12 for a battery 11 is provided on the side.

The selector 7 itself may be powered by the battery 11, the safe body 1, or a separate AC power source. The selector 7 also has a limit switch holder at its tip, so that the limit switch 15 is activated when the selector 7 is inserted into the insertion opening 6 of the safe. Further, it is assumed that the selector 7 has a large number of contacts that come into contact with the large number of contacts on the main body of the safe when the selector 7 is inserted into the insertion opening.

In FIG. 4, a rotating shaft 14 of the handle 4 is integrally provided with a rotating plate 15, and the base end of each of the gaps 5 is pivotally attached to the rotating plate 15, When the handle 4 is rotated clockwise in the figure, the gaps 5 move vertically and to the right, and their tips protrude from the upper and lower end surfaces and side surfaces of the door 2 to engage with the safe body 1, and the door opens. 2 cannot be opened. A notch 16 is formed on the peripheral edge of the rotary plate 15, and a stopper 1 is formed in this notch 16.
7 advances, the rotation range of the rotation plate 15 is limited, and the movement range of each J bolt 5 is therefore limited to a range sufficient for its tip to protrude from the end face of the door and to retract. It looks like this. Further, a projection 1B is formed on a part of the periphery of the rotating plate 150, and in the illustrated state, the rotating plate 1
A state in which the plunger 20 of the electromagnet 19 provided on the side of the bolt 5 advances onto the path of the protrusion 18 and prevents the lock 5 from opening the door 2 and prevents the rotation of the rotating plate 15, that is,
It is in a locked state. A limit switch 21 is disposed below the granger 20, and a rotating plate 15
When rotated counterclockwise in the figure, the protrusion 18 actuates the limit switch 21.

Since this limit switch 20 detects whether or not the electromagnet +9 is activated, the movement of the plunger 20 may be detected. Also, the plunger 20. Furthermore, since a large force may be applied to the electromagnet 19 by the rotation operation of the /% handle 4, another member may be connected to the plunger 20, and this member may prevent the movement of the protrusion +8. As shown in FIG. 5, there is a lid 22 on the door 2 of the safe.
A battery installation chamber 25 may be provided, and the battery 24 installed in this installation chamber 25 may be used as a power source for the main body of the safe.
It may also be used as a backup power source in case of a power outage. Next, an example of an electric circuit used in the present invention will be described.

Figure 6 shows an example of a power supply circuit inside a safe.The AC power introduced from the power supply AC is stepped down by a transformer T, then rectified by a bridge rectifier circuit BD, and then connected to a predetermined smoothing circuit, stabilizing circuit RG, and limit circuit. Direct current is supplied from the source Vcc via the switch LS. The limit switch LS is a switch that is turned on by inserting the selector 7 into the insertion slot 6 of the safe.

FIG. 7 shows the circuit 25 inside the selector 7 and the circuit 26 around the safe body. In the figure, ■ to ■
indicates the numeric keypad 9, and when these numeric keys are selectively operated, the corresponding switches are turned on, and the diode matrix circuit 27 outputs it as a 4-bit binary digital signal, which is temporarily stored in the latch circuit C4. It is becoming more and more common. The launch circuit has C1 and C2 to C7 arranged side by side, and has a total of 7 digits, and by inputting the signal generated each time the numeric keypad is pressed one by one to the clock terminal GLK of each latch circuit C1 to C7, The latch signals in the latch circuits of lower digits are sequentially shifted to the latch circuits of higher digits. The latch signals of each latch circuit C1 to C7 have respective Qs. A of the comparators CP1 to cp from the output terminals of Q3 to Q3.

to A3 input terminals.

When the rgTJ key is pressed, the corresponding switch is turned on, and "H" is applied to the IN terminal of the comparator cp through the OR circuit OR,C (or circuits are displayed as roa, J roa2J, etc.). signal is input.゛There is a 7-digit digital switch D8° to D in the circuit next to the safe.
87 are provided. Each digital switch D8° to D6
7 outputs a 4-bit digital signal using a binary system, and a numerical value can be set in advance. Each digital dog D81 to Ds
By inserting the selector 7 into the insertion slot 6 in the safe, the output signal of 7 is transmitted to the input terminals B of each comparator CP to CP7 in the selector 7 through predetermined contacts. It is designed to be input to B3 through B3. Comparator cp.

to CP are digital switches D1. to CP, respectively. +1 to D8
The signal from 7 is compared with the signals from latch circuits C1 to C7, and only when the values of all digits match, comparator P is activated. The "H" signal input to the IN terminal of No. 1 is outputted from the Q terminal of the comparator CP through each comparator CP to 'cp, and then output from the Q terminal of the comparator CP.
(Hereinafter, the flip-flop circuit will be referred to as "FF1
1 (displayed as “FF2”) preset terminal PR
It is now entered into FF is connected to the PR terminal.
When the "H" signal is input, a "river signal" is output from the terminal Q, turning on the transistor Tr, exciting the relay coil C4 and turning on its a contact R1, and further energizing the relay coil C2 and turning on its contact R2. is turned on, thereby exciting the electromagnet 19 through contacts S, , S2.

The signal from the FF is input to the PR terminal of FF2, and the "H" signal is output from the Q terminal of FF2.This "H" signal is introduced to the selector 7 through the contact. It is input to the reset terminal R8T of each latch circuit C4 to C7 through OR2, and the memory of each latch circuit is erased.

A signal is input to the terminal CL of FF, FF2 through an initial reset circuit IR or OR. Furthermore, the signal from the limit switch 21 is input to the terminals (IL) of FF, FF2 via 15=oR5. When unlocked, FF
This is to prevent malfunction by setting the output of the Q terminal of 1°FF2 to "0".

rHJ caused by pressing the ft+, TJ key
The signal is input to the terminal PR of FF4 and is routed from its terminal Q to rH.
The J signal is output. This "H" signal is input to the AND circuit AND, which allows the pulse signal of a constant frequency output from the oscillation circuit OSC to pass through, and is input to the terminal CK of F=F. . The FF operates as a kind of timer, and when it counts input pulses and reaches a predetermined count value, it outputs the rHJ signal from the Q+0 terminal.
It is designed to be input to the reset terminal R8T of each latch circuit C1 to C7 via OR2. The "H" signal generated by pressing one of the ten keys is input to the CLK terminal of each launch circuit C5 to C7 as described above, as well as to the OL terminal of FF3, and this "H" signal causes the FF, Q,.

The output of the terminal is set to "0".

In the circuit configured as above, now press the numeric keys in sequence to specify a predetermined setting value.

d matrix circuit 2 assuming that you pressed the rgTJ key last
Numerical signals from 7 are sequentially sent to latte circuits C4 to C2°C5.
, . . . C7 and are temporarily stored while being shifted. At this time; if the above key operation is performed while the selector 7 is attached to the safe, each latch circuit C
Digital signals from 1 to C7 and each Denmeitch D81
to the digital signals from D87 to a comparator cp,
Compare from CP to CP, and if the ratio III matches in all digits, the "
An "H" signal is outputted from the Q terminal of the comparator cp through each of the comparators cp to cp, and based on this, the electromagnet 19 is excited as described above. When the electromagnet 19 is excited, the plunger 20 shown in FIG. 4 is attracted, and the plunger 20 is retracted from the passage of the protrusion 1B of the rotating plate 15, and the rotating plate 15 is rotated by operating the handle 4.
The door can be opened by retracting each gap 5 from the end face of the door 2. Note 1. When the electromagnet 19 is excited, the FF
2(7) The rHJ signal is output from the Q terminal and resets each comparator cp to cp. The limit switch 21 is actuated by the rotation of the rotating plate 15, and the resulting "river signal" is output through OR, FF, and so on.

It is input to the terminal CL of FF2, the output of the terminal Q of FF2 is set to "0", and the excitation of the electromagnet 19 is cut off. As a result, the plunger 20 tries to return to the original position I, but the projection +8 of the rotating plate 15 prevents the plunger 20 from returning, and when the rotating plate 15 returns to its original position by operating the handle 4, the plunger 20 returns. It becomes locked.

If the operation of the numeric keypad and rgrJ key as described above is performed with the selector 7 removed from the safe, the latch signals will not be input from the respective latch circuits C1 to C7 to the comparators cp to cp. Same as in the above case, if the selector 7 is left inserted into the insertion slot 6 of the safe, the "H" signal output by the "ET" key operation will be input to the terminal PR of FF4. The FF starts operating as a timer from the moment the timer reaches FF. rH from terminal
J signal is output, and based on this signal each launch circuit C1
to C, even if the selector 7 is attached to the safe after it has been polyset, it will not be unlocked as it is. Therefore, in this case, the numeric keypad operation must be performed again. The reason for providing such a function is that if the numerical values stored by the numeric keypad operation were to remain forever without being erased, the effectiveness of the electronic lock would be diminished.

Further, when the selector 7 is removed from the safe, the ten keys are operated, and then the selector 7 is inserted into the safe, there is no need to operate the rgTJ key.

That is, the limit switch 15 activated when the selector 7 is inserted into the safe emits the HJ multiplication signal, which is the same as when the rHJ signal is input to the IN terminal of the comparator CP via OR1 and the rrrJ key is operated. The reason for choosing a circuit configuration with such a function is as follows.
Comparator cp until selector 7 is inserted into the safe.
, to CP cannot perform the comparison operation, so it is meaningless to input the IN terminal [button signal] of the comparator cp at this point.
This is so that when the rgTJ g- is inserted into the safe, a predetermined operation can be performed immediately without operating the rgTJ g-.

In the embodiments described above, the selector 7 is separated from the safe, but as shown in FIGS. 8 and 9, the selector 7 may be incorporated into the safe. 8th
In the figures and FIG. 9, an opening/closing lid 29 is provided next to the metal cage and the combination lock 2B, and when the lid 29 is rotated and opened, the selector 7 comes out.

According to this embodiment, since the selector 7 is built into the safe, the circuit for the selector 7 and the circuit for the safe can be directly connected without using a contact or the like.

28 can be used auxiliary. Figures 10 to 1
Figure 2 shows an example. In FIGS. 10 to 12,
Of the bolts 5 formed in the same manner as in the example of FIG. 4, an auxiliary plate 50 is further pivotally mounted on the axis of the bolt that moves in the horizontal direction, and the auxiliary plate 5o is connected to the elongated hole 5! is penetrated by the pin 52, so that it can move horizontally within the range of the elongated hole 51. Auxiliary board 5
Electromagnetic graphite 9 is fixed to o through an angle member 35. An engaging member 54 is fixed to the tip of the granger 20 of the Wl magnet 19, and when the plunger 20 moves forward and backward by energizing and de-energizing the electromagnet 19, the engaging member 54
It is also guided by a guide member 55 to reciprocate. The direction of movement of the engaging member 54 is perpendicular to the direction of movement of the auxiliary plate 50. A plurality of actuation plates 56 are provided near the engagement member 54 and are actuated by the combination lock 28, and when the unlocking condition for the combination lock 2B is met, all the notches 57 of each actuation plate 56 are opened. When they match, as shown in FIG. 12, even if the electromagnet 19 is in a non-energized state, the engaging member 54, which has moved to the left in the figure together with the auxiliary plate 50, engages the notch in each actuating plate 56. 57. However, when the unlocking conditions for the combination lock 2B are not satisfied, that is, when the notches 57 of the actuating plates 56 do not match as shown in FIG. When the member 54 moves forward, the member 54 escapes to the side from the position facing each actuating plate 56, allowing the movement of the auxiliary plate 50, resulting in an unlocked state, but the electromagnet 19 is not energized. Unless it is, the engaging member 54 is in a position opposite to the circumferential surface of each actuating plate 56, and even if the auxiliary plate 50 is moved to the left in the figure, the engaging member 54 will come into contact with the circumferential surface of each actuating plate 56. Movement of the auxiliary plate 50 is prevented, and therefore the locked state is maintained.

That is, in the embodiments shown in FIGS. 10 to 12, the electronic lock can be used independently as an electronic lock regardless of whether the unlocking condition for the combination lock is satisfied or not. Regardless of whether the unlocking condition is satisfied or not, the combination lock can be used independently as a combination lock. In other words, even if the electronic lock becomes unusable due to a power outage or failure,5 the combination lock can be used to lock and unlock the door.

Although the explanation so far has been given as an unlocking device for a safe, the present invention can be used for any device that requires a lock.

For example, in the example shown in FIG. 4, a selector insertion slot 59 is provided in the sliding door 5B, and when the selector is inserted, the lock can be unlocked (n) as in the previous example. It can be in any form.

According to the present invention, since the lock can be unlocked by calling up the PIN number by key operation, the unlocking operation can be performed quickly and the probability of the unlocking condition being satisfied can be easily reduced to an extremely low level. Therefore, it is possible to provide an electronic unlocking device with high anti-theft properties. In addition, a combination lock is provided on the edge of the drive device that constitutes a part of the electronic unlocking device, and when the unlocking conditions for the combination lock are met, a part of the drive device enters into the notch of the operating plate. Since the lock is configured to change depending on the situation, the combination lock can be used as an auxiliary device even when the electronic unlocking device is unavailable due to a power outage or the like.

In the illustrated embodiment, an electromagnet was used as the drive device that constitutes a part of the electronic unlocking device, but in the case of a large-scale unlocking device, a motor or cylinder may be used. .

[Brief explanation of the drawing]

Fig. 1 is an external perspective view showing an example of a safe having the device of the present invention, Fig. 2 is a perspective view showing another embodiment of the above safe with only the door section, and Fig. 5 shows only the selector section used in the above safe. FIG. 4 is a perspective view showing the internal structure of the safe; FIG. 5 is a perspective view of a portion of the front side showing another example of the safe; FIG. 7 is a diagram showing an example of a digital circuit used in the present invention; FIG. 8 is an external perspective view showing another example of a safe having the device of the present invention; FIG. 9 is a diagram showing an example of a digital circuit used in the present invention; The figure is a perspective view of a part of the front side showing another aspect of the safe, FIG. 10 is a perspective view showing another example of the internal mechanism used in the present invention, and FIG. 11 is a perspective view of the operating mode of the internal mechanism. FIG. 12 is a perspective view showing one example, and FIG. 12 is a perspective view showing yet another operating mode of the internal mechanism. 1st
FIG. 5 is a front view showing an example of a door device having the device of the present invention. 5... Bolt, 4... Handle, 6... Insertion slot, 7.
... Selector, 9... Numeric keypad, 15... Rotating plate,
18...Protrusion, 19...Electromagnet, 2...Limit switch, C,, C2°c,, c4. c5', c6. c.
,...Latch circuit, CP, , CP2. CP3.
CP4゜cp5. cp6. cp7・-con, palator, DB + ” S 2 + DB 5 r D s
a 1Ds5. Ds6IDs7...Digi switch, 2
8... Dial lock, 50... Auxiliary plate, 54... Engagement member, filter 6... Operating plate. Procedural amendment (voluntary) May 1980 4/B l Indication of the case 1982 Patent Application No. 18031 2 Name of the invention Electronic lock 3 Person making the amendment Relationship to the case Patent applicant name (name) Kongo Co., Ltd. 4 Agent 〒156 6. Contents of amendment (11 ■ Cor., 1. Change the rw electronic unlocking device in lines 11 to 12 of page 2 of the specification to "electronic lock". "Unlocking device" in line 13 of page 41 is changed to "lock.""Electronic unlocking device" in the last line of page 61 is changed to "electronic lock." (Page 3 of the 61 specification) 2nd line, 5th line and 15th line of “
"Electronic unlocking device" will be changed to "electronic lock.""Electronic unlocking device" in lines 3 and 4 on the same page is replaced with "
Changed to "electronic lock". No. 1 "Unlocking device" in line 15 of page 16 of specification #E is "
Changed to "electronic lock". "Electronic unlocking device" in the 2nd line, 7th and 14th lines of the specification on page 3 will be changed to "electronic lock.""Electronic unlocking device" in lines 11 to 12 of the same page is "
11 tablets". Attached Claim 1: An operation key that can input a digital signal of any value, and a storage device that stores the digital signal;
The digital switch can be set in advance to output a digital signal of any value, and the digital signal stored in the storage device is compared with the digital signal from the digital switch, and the lock is unlocked when the two match. An electronic lock comprising a comparator that outputs a signal, and a drive means that is activated by an unlocking signal from the comparator to unlock a locking device. 2. An operation key that can input a digital signal of any value, a storage device that stores the digital signal, and a digital switch that can be set in advance to output a digital signal of any value. a conoparator that compares the digital signal stored in the storage device with the digital signal from the digital switch and outputs an unlock signal when the two match; Driving means for unlocking the locking device and procedural amendment (0 volumes January 1980 908 1 Incident display Showa!: 17 years Patent Application No. 18031 2
Name of the invention Electronic lock 3 Relationship with the case of the person making the amendment Patent applicant name (name) Kongo Co., Ltd. 4 Agent Address 156 Address 2-6-28-5 Sakuragaoka, Setagaya-ku, Tokyo
Target of amendment: “Detailed Description of the Invention” column of the specification and Drawing 6 Contents of amendment (1) Change “Ao to A,” from line 12 to line 16 on page 7 of the specification to “Po to, P ,". 12) Delete "Turn on" from the beginning of the first line to the second line of page 9 of the specification number. (6) Add the following sentence to the end of the first line on page 13 of the specification. "In the example shown in Fig. 7, the setting numbers match. Regardless of the mismatch, as long as you press the [KTJ key, FF4.
F'F' is activated and after a certain period of time, the latch circuit C3
Although the latch circuits C1 to C1 are set, if the setting number and the operation number match, the latch circuits C1 to C1 may be set after a certain period of time has elapsed. (4) Figure 7 in the attached drawings has been revised as shown in the attached sheet.

Claims (1)

[Claims] 1. An operation key that can input any digital signal, and a storage device that stores the digital signal;
A digital switch that can be set in advance to output a digital signal of any clay, compares the digital signal stored in the storage circuit with the digital signal from the digital switch, and outputs a signal when the two match. An electronic unlocking device comprising a comparator that outputs an output, and a drive device that is activated by an output signal from the comparator to unlock the locking device. 2. An operation key that can input a digital signal of any value, a storage device that stores the digital signal, a digital switch that can be set in advance to output any direct digital signal, and the storage device that stores the digital signal. A comparator that compares the digital signal stored in the circuit with the digital signal from the digital switch and outputs a signal when the two match, and a drive that is activated by the output signal from this comparator to unlock the locking device. In the electronic unlocking device having a device, a combination lock is provided near the drive device, and when the unlocking conditions for the combination lock are met, the drive device is inserted into the notch of the actuating plate. An electronic unlocking device configured such that -S of -S can enter.