JPS58176371A - Fire resistant strong box equipped with error operation alarm 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 a fireproof safe, and more particularly to a fireproof safe equipped with an erroneous operation alarm device.

Alarm devices in conventional fireproof safes were generally activated when the safe itself was destroyed or carried away, so according to this, the door could be opened by entering a password using a combination lock or keyboard. It was not possible to detect this and issue an alarm if it opened. Also, there are alarm devices for special safes that issue an alarm in such cases, but such alarm devices only issue an alarm when the door is opened, so it is difficult to detect the alarm. By the time they arrived, the property had often been stolen or the perpetrator had fled. Therefore, these conventional fireproof safes have the disadvantage that they are not as good as theft-proofing properties.

An object of the present invention is to eliminate this drawback and provide a fireproof safe equipped with an erroneous operation alarm device having an alarm that activates when the input device is erroneously operated more than a preset number of times. (2) An input device such as a dial or keyboard provided on the front side of the device, and an erroneous operation detection circuit that detects when a password signal such as an unlock number input from this input device differs from a preset password signal. , a comparator that compares the number of erroneous operations detected by this erroneous operation detection circuit with a preset number of erroneous operation alarm starts, and outputs an output when the number of erroneous operations reaches the erroneous operation alarm start number, and an alarm activated by the output of this comparator. The location is equipped with an erroneous operation warning device consisting of a device and a device.

Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings.

In Figure 1, 1 is fireproof concrete (not shown)
The main body of the safe is filled with fireproof conc. A door 3 filled with J-toe 2 (see FIG. 7) is attached by a pair of hinges 4 and 5 so as to be openable and closable. A handle 6 and a cylinder lock 7 are provided on the front side of the door 3, and a decorative case 8 is fixed thereto. This cosmetic case 8 includes a keyboard 12 having a dial 9 rotatably supported by a shaft 10, and 12 operation buttons 11 displaying numbers from 0 to 9, #, and US;
Display unit 13 that provides 8-digit digital display using liquid crystal display
A dry cell storage section 14 that can be opened and closed is also provided. The shaft 10 of the dial 9 also has a pair of bearings 17 in an upper case 15 and a lower case 16 fixed in the decorative panel 8.
．． It is rotatably supported via 1B. A rotating plate 19 is fixed to the shaft 10 so as to be located inside each case 15.16, and magnetic shielding plates 20.21 are fixed to both sides of the rotating plate 19, respectively. As shown in FIG. 4, each of the magnetic shielding plates 20, 21 is provided with notches 22 (only one of them is shown) at positions facing each other, and these notches 22 are located at the lowest position. A ferrite magnet 24 is attached to the upper case 15 via a packing 23 in order to cope with this situation. Further, a reed switch 25 is attached to the lower case 16 at a position facing the ferrite magnet 24. Therefore, the notch 22 of each magnetic shielding plate 20.21 is connected to the ferrite magnet 24 and the reed switch 25.
When the reed switch 25 is positioned corresponding to , the reed switch 25 is turned on.

As is clear from FIG. 5, the rotary plate 19 has sleeves (26, 27, 28) arranged in a row in the radial direction that indicate the binary numbers 0.1, 10.11. There are 100 transparent rows arranged at equal intervals in the direction. That is, the slit 26
represents D, the slit 27 represents 1 in the first digit, and the slit 28 represents 1 in the second digit, and in the circumferential direction, each row rotates at every rotation angle of 6.6 degrees. It is provided. 29, 30.31 are phototransistors attached to the upper case 15 by the mounting board 32 so as to correspond to the respective slits 26°, 27.28, and the lower case 16 has phototransistors 29, 30.31. Light emitting diodes 33, 34, and 35 are mounted via a mounting board 36 so as to be located opposite to each other. Therefore, if all phototransistors 29, 30° 31 receive light, the value is 11, and if each phototransistor 29°31 receives light, the value is 10. If each phototransistor 30°31 receives light, it is 1, phototransistor 31
If only the light is received, it can be detected that the rotary plate 19 is at the 0 position. And 0.1.1
If it is detected in the order of 0.11.0..., it will be detected in the counterclockwise direction, 0.
If the detection is performed in the order of 11.10.1.0..., it can be detected that the rotating plate 19 is rotating in the clockwise direction. In addition, as mentioned above, the circumferential direction C2 is each sleeve) 26, 27, 28
Since rows of 26, 27 and 28 are provided for each rotation angle of 3.6 degrees, the amount of rotation of the rotary plate 19, that is, the amount of rotation of the dial 9, can be calculated by detecting and counting the number of rows of each slin.
This rotation amount is converted from a rotation angle of 6.6 degrees to 1 and digitally displayed on the display unit 13 in units of two digits. However, the digital display in this embodiment always displays blank, 0.1.2.6.4, etc. when the dial 9 is reversed from the stop position, and has an absolute reference position. It's not a thing. Therefore, for example, to display 1020140 on the display unit 13, rotate clockwise by 46.2 degrees, counterclockwise by 792 degrees, and clockwise by 115 degrees.
All you have to do is rotate it 2 degrees and then rotate it 1512 degrees counterclockwise. That is, each surin in the 6th column) 26, 27.
It is configured so that 1 is displayed only after counting 28.

These light emitting diodes 33, 34, 35, phototransistors 29, 30, 31, reed switch 25, rotating plate 1
The dial 9 with 9 and the keyboard 12 are electrically connected to the microprocessor CPU 3B on the IC board 37 fixed in the cosmetic case 8 shown in FIG. (See Figure 8). As shown in FIG. 8, the CP0
3B is electrically connected to the unlocking circuit 39 or the locking circuit 40, and is also connected to the RAM and ROM by an address bus and a data bus, respectively.

Both circuits 39 and 40 are electrically connected to a motor 54 which is a drive mechanism to be described later.

Next, a more detailed electrical connection state between the input device consisting of the dial 9 and keyboard 12 described above and other components of the erroneous operation alarm device will be explained based on the functionally analyzed block diagram of FIG. 9. .

The output terminal of the keyboard 12, which is an input device, is connected to the respective input terminals of the unlock number storage register 100 and the false operation alarm start count register 101 in the program mode, so that a password signal can be input by a predetermined input operation using the keyboard 12. The 8-digit unlock number is stored in the unlock number storage register 100, while the keyboard 1
By a predetermined input operation using 2, the number of false operation alarm starts is stored in the false operation alarm start count register 101. The program input of the unlock number and the number of erroneous operation starts is performed according to a procedure stored in advance in the ROM. After pressing ＃
key, then enter the desired unlock number using the numeric keys, and then press the US key. If you want to set the number of false operation starts, press the same numeric key 6 times different from the above.
After pressing the number of digits, press the # key, then input the desired number of times using the numeric keys, and then press the US key. Further, the output terminal of the dial 9, which is the input device, is connected to the input terminal of the unlocking number person Kavanaugh register 102 and the control circuit 103 as an unlocking operation mode,
As a result, an 8-digit unlock number is input from the dial 9 to the unlock number person cover register 102.

The output terminals of the unlocking number storage register 100 and the unlocking number register 102 are connected to the input terminal of a minus number circuit 104, and the output terminal of the minus number circuit 104 is connected to the control circuit 103 and the output terminal of the minus number circuit 104. They are respectively connected to input terminals of the erroneous operation detection circuit 105. And the - number circuit 1
When it is detected by 04 that the unlocking number input from the dial 9 matches the official one and a matching signal is output, this is input to the control circuit 103 and a control signal is output, and this is the unlocking circuit. 39 and outputs an unlocking drive signal that causes the motor 54 to rotate once in the forward direction.

On the other hand, when it is detected that the above-mentioned unlocking number is different from the regular one and a mismatch signal is output, this is input to the erroneous operation detection circuit 105, and an erroneous operation is detected. The output terminal of the erroneous operation detection circuit 105 is connected to the input terminal of the erroneous operation count register 106.
6 stores the number of erroneous operations. The output terminals of the erroneous operation alarm number register 106 and the erroneous operation alarm start number register 101 are connected to the input terminal of a comparator 107.
The number of times an erroneous operation alarm is started stored in the erroneous operation number register 106 is compared with the number of erroneous operations stored in the erroneous operation number register 106;
A signal is output when the number of erroneous operations exceeds the number of erroneous operation alarm start times. This output signal is input to the alarm circuit 108 and causes a buzzer 109 serving as an alarm to sound. The buzzer 109 is powered by a built-in battery (not shown) different from the battery 41 described later, and this power battery is located in a position where it cannot be removed unless the door is open. A control signal is sent from the control circuit 103 to the erroneous operation alarm start count register 101, the erroneous operation count register 106, and the comparator 107, so that they operate in synchronization with each other. Further, a clear signal outputted when the unlocking circuit 39 outputs the unlock drive signal is input to the erroneous operation count register 106, and the memory of the number of erroneous operations that did not reach the erroneous operation alarm start count is cleared. be.

Further, in the locking circuit 40, when the light emitting diode 33°34.35 and the phototransistors 29, 30.31 detect that the dial 9 has rotated six times or more in the same direction, the CPU 38 generates a control signal based on this detection signal. When this control signal is input, a locking drive signal is output that causes the motor to rotate once in the reverse direction. Note that 41 is a battery housed in the dry battery housing 14 for supplying power to each of the electronic components described above.

Next, the lock mechanism will be explained. As is clear from FIG. 6, a pair of guide pins 42 and 43 are provided at a predetermined position on the rear surface of the door 3 in a vertical direction at a predetermined interval, and these guide pins 42 and 43 are provided with metal plates. The formed slide body 44 is fitted and supported in a pair of oblong elongated holes 45 and 46 transparently provided at a predetermined position so as to be slidable in the lateral direction 1, and the slide body 44 is fitted into an upper engaging portion. 47 and a lower engaging part 48, six rods 49, 50, 51 are fixed to the lower side thereof at predetermined intervals in the vertical direction, and a sixth rod 49, 50, 51 is always fixed by a spring 52, 53.
It is biased toward the right in the figure. This spring 52.5
3, the slide body 44 is brought into a state in which its six rods 49.50.degree. (solid line state), and at this time the door 3 is in a locked state. 54 is the bezel 7 fixed to the back of the door 3.
This is a fixed motor that rotates forward and backward, and is electrically connected to the output terminals of the unlocking circuit 39 and the locking circuit 40, as shown in FIG. A gear 56 is fixed to the output shaft, and this gear 56 is connected to one end of a rotating shaft 58 parallel to the base plate 55, which is rotatably supported by a fixed support (not shown). A worm 60 is fixed to the other end of the rotary ring 58, and the worm 60 is connected to a rotating shaft 61 rotatably hung from the base plate 55. It meshes with a fixed worm gear 62.This worm gear mechanism is configured to transmit rotational force in the opposite direction as well.The rotating shaft 61 has a U-shaped notch 63. A circular cam plate 6 having
4 is fixed, and when the motor 54 makes one rotation in the forward direction, the cam plate 64 rotates half a rotation counterclockwise in FIG. 6 by each of the aforementioned gears. and the gum plate 64
, the free end of a lever 66 rotatably supported by a support shaft 65 vertically provided on the base plate 55 is attached to the lever 66.
6 and the rotation shaft 61
are urged by the tensile force of and are in contact with each other. A pair of support plates 68 and 69 vertically disposed on the base plate 55 are each provided with a through hole, through which a locking member 70 is slidably supported. A bin 1 located on the rotation path of the lever 66 is provided on the upper surface of the lock par 70,
Further, a spring 72 is stretched between the support plate 69 and the support plate 69 . The tensile force of the spring 72 urges the lockper 70 in a direction to protrude from the support plate 69, and when the lockper 70 is in the protruding state, the slider 44
is located on the movement path of the lower engaging portion 48 of
This is the locked state. On the other hand, the state shown by the imaginary line in FIG. 2 in which the locking member 70 has entered the support plate 69 is the unlocked state.

Reference numeral 73 designates a locking plate portion of the cylinder lock 7, which protrudes when the cylinder lock 7 is in the unlocked state and protrudes when the cylinder lock 7 is in the locked state. It is located on the movement path of Therefore, when the door 3 is in the locked state described above, the upper engaging portion 47 of the slide body 44 is engaged with the engaging plate portion 73 of the cylinder lock 7, and the lower engaging portion 48 is engaged with the locking member 70. , the slide body 44 is prevented from moving to the upper left in FIG. Further, when the locking state of each of the engaging portions 47 and 48 by the locking plate portion 73 and the locking member 70 described above is released, the slide body 44 resists the biasing force of the springs 52 and 53, as shown in FIG. You can move up and to the left.

A vertically long oblong hole 74 is transparently provided slightly above the upper end in the height direction of the slide body 44, and a pin 75 is inserted into this oblong hole 74.
is loosely fitted. The pin 75 is fixed to the upper end of an arm 76, and the lower end of this arm 76 is connected to the shaft 77 of the handle 6.
It is fixed in place.

Therefore, the lock par 70 and the cylinder lock 7
When the knob 1 and the handle 6 are rotated clockwise in FIG.
As a result, the bin 75 rotates counterclockwise in the top of FIG. 6 and moves to the left in the top of the figure, and the slide body 44 also moves in the same direction to be in the state shown by the imaginary line in FIG. . At this time, the six rods 49, 50, 51 are separated from the side wall 1a of the safe main body 1, and the door 3 becomes unlocked.

78 is a locking piece, which holds the bottle 7 at a predetermined position on the back side of the field 3.
It is rotatably supported by 9.

Further, the locking piece 78 is held in place by a spring 80 as shown in FIG.
L It is biased to rotate clockwise.

When the slide body 44 moves to the unlocked state position (the state shown by the imaginary line in FIG. 6) due to the biasing force of the spring 80, the sixth engaging portion 81 is locked, and the slide body 44 is locked. Movement to the upper right in FIG. 6 due to the urging force of each spring 52 and 53 is prevented. 82 is a moving rod, the tip of which comes into contact with the locking piece 78;
It is supported by the field 3 so as to be movable in the axial direction. The moving rod 82 is moved in conjunction with the opening/closing operation of the door 3. When the field 3 is closed, the moving rod 82 moves to the right in FIG. It is rotated clockwise. Therefore, when the door 3 is closed in the unlocked state in which the locking piece 78 locks the sixth engaging portion 81 of the slide body 44, the locking state is released and the slide body 44 is unlocked. can now be moved to the upper right in FIG.

Next, the operation of the above-described embodiment will be explained.

First, the case of changing from the locked state shown by the solid line in FIG. 6 to the unlocked state will be described. When the dial 9 is rotated in any direction from the resting position to a position where the notch 22 of the magnetic shielding plate 20° 21 corresponds to the ferrite magnet 24 and the reed switch 25, the reed switch 25 is turned on and each circuit is turned on. is supplied with electricity. Next, the dial 9 is repeatedly reversed in units of two digits according to the eight-digit unlock number set in advance. For example, if the unlock number is 1234'567B, when the dial 9 is reversed from the position where the reed switch 25 is turned on, the rotary plate 19 rotates and each step is opened. J throat 26
, 27.28 column movement is light emitting diode 33, 34.3
5 and phototransistors 29, 30, and 31,
Since the amount of rotation of the rotating plate 19 begins to be digitally displayed on the display unit 13, the rotation is stopped when 12 is displayed.

Then, when the dial 9 is inverted again and 64 is displayed on the display section 13, the dial 9 is further inverted, and when 56 is displayed on the display section 13, the dial 9 is further inverted,
When 78 is displayed on the display section 13, the rotation of the dial 9 is stopped. In this two-digit display, each time a new number is displayed, the conventional number is sequentially shifted to the upper digit and displayed. In this way, when the regular unlocking number is entered by the dial 9 in the unlocking number manual buffer register 102 (2), the - number circuit 104 (2 and the preset number sent from the unlocking number storage register 100) It is confirmed that it matches the unlock number,
An unlocking signal is issued, and in response to this signal, an unlocking drive signal is sent from the unlocking circuit 39 to the motor 54.

On the other hand, if the official unlocking number is not input in the above-mentioned operation of the dial 9, that is, if an erroneous operation is performed, the negative number circuit 104 detects the unauthorized unlocking number input from the unlocking number manual buffer register 102. A mismatch between the number and the regular unlock number inputted from the unlock number storage register 100 and stored in advance is detected, and a mismatch signal is output. Then, this discrepancy signal is input to the erroneous operation detection circuit 105 to detect an erroneous operation, this detection signal is input to the erroneous operation count register 106, and when the number of manual inputs exceeds the number set and stored in the erroneous operation alarm start count register 101, , a signal is output from the comparator 107 and input to the alarm circuit 108, causing the buzzer 109 to sound. The buzzer 109 continues to sound until the correct unlocking number is input and the unlocking circuit 39 issues a clear signal to the erroneous operation count register 106t, or until the power source battery (not shown) is exhausted.

When the unlock drive signal is issued as described above, the motor 5
4 rotates once in the forward direction, and the cam plate 64 rotates half a rotation counterclockwise in FIG. 6 as described above. Therefore, the lever 66, which has entered into the moved notch 63 by the biasing force of the spring 67, rotates upward in the figure as the cam plate 64 rotates, and moves the pin 71 upward in the figure. Push upward.

As a result, the lock bar 70 pushes into the support plate 69 against the biasing force of the spring 72 and releases the locked state from the lower engagement part 48, while the lever 66 disengages from the cutout part 63 and as shown in FIG. When the lock bar 70 stops in the virtual line state, the lock bar 70 also stops in the virtual line state. Subsequently, when the cylinder lock 7 is unlocked, the locking plate portion 73 moves in and releases the locking state with respect to the upper engagement portion 47. If the nodle 6 is rotated clockwise in FIG. 1, the slide body 44 moves from the solid line position in FIG. 6 to the imaginary line position in FIG. 6, and the six locks F49, 50. 51 separates from one side wall 1a of the safe body 1 and rushes into the door 3. This releases the locked state, and when the door 3 is opened,
The slide body 44 is locked by the locking piece 78 and maintained in the unlocked state (the state shown by the imaginary line in FIG. 6).

To lock the door again, first close the door 3, and the movable rod 82 is pushed by the hinge-side side wall of the safe body 1 and moves to the upper right in FIG. The slide body 44 is rotated against the biasing force of the spring 80, and the locking state by the locking piece 78 is released, and the slide body 44 is moved to the solid line position in FIG. 6 by the biasing force of each spring 52, 53. , along with this, six rods 49
゜50.51 is one side wall 1a of the safe main body 1 with the door 3 protruding
engage with. Next, after locking the cylinder lock 7,
All you have to do is rotate the dial 9 three or more times in the same direction. Then, the locking plate part 73 protrudes, and the motor 54 rotates once in the opposite direction in response to the locking drive signal, returning the lever 66 to its original position (second position), and the locking bar 70 is moved away from the support plate 69 by the biasing force of the spring 72. As a result, the door 3 becomes locked again as shown by the solid line in FIG. 6.

In the above-described embodiment, the program input is performed using the keyboard 12 and the unlocking operation input is performed using the dial 9.
Only the keyboard 12 (it is also possible to perform the above-mentioned two-handed operation.Also, although the buzzer 109 is used as the alarm, a lamp that appeals to the eyes rather than the auditory sense may also be used, or a combination of both may be used. Further, in detecting an erroneous operation in dial 9 operation, a configuration may be adopted in which a tolerance can be set for each reversal operation of dial 9. For example, if the tolerance is set to ±1, If the erroneous operation is within ±1 of the number obtained by dividing the unlock number into two digits, it will not be detected as an erroneous operation. Therefore, if the unlock number is 1215678 and the tolerance is set to ±1, 12 will be 11.
For 13.34, for 33 to 35.56, for 55 to 57.78, if you operate dial 9 within the range 77 to 79, it will not be an erroneous operation and will be input as a normal unlocking operation. Become.

As is clear from the above explanation, according to the present invention, the theft prevention performance of a fireproof safe is improved by issuing an alarm when erroneous operations are performed more than a preset number of times. By making an appropriate selection, it is possible to avoid the trouble of issuing two alarms every time an erroneous operation is performed due to a careless mistake.

[Brief explanation of the drawing]

The figures show preferred embodiments of the present invention, in which Fig. 1 is an overall front view of the safe, Fig. 2 is an enlarged perspective view of the cosmetic case, a front view showing the rotating plate and the magnetic shielding plate, and Fig. 5 is the rotating plate. (An enlarged developed view showing the arrangement of the slits in the second slot, Fig. 6 is a rear view of the door, Fig. 7 is an enlarged cross-sectional view of the door with some parts omitted, and Fig. 8 is a block diagram showing the entire electrical control system. Figure 9 is a block diagram functionally analyzing the main parts. 1. Safe body 3. Door 8. Cosmetic case 9. Dial 12. Keyboard
13...Display section 39...Unlocking circuit 40.
・Lock circuit 44...Slide body 54...Motor 64...Cam plate 66...Lever 70
・・Long bar 78・−・Latching piece 101・・Mistaken operation alarm start count register 103・・・Control circuit
105... Erroneous operation detection circuit 106... Erroneous operation count register 107... Comparator 108... Alarm circuit 109... Brake

Claims (1)

[Claims] In a fireproof safe consisting of a main body filled with a fireproofing material and a door also filled with a fireproofing material and attached to the main body so as to be openable and closable, an input device provided on the surface side of the fireproof safe and input from this input device are provided. If the PIN code is different from the preset PIN code (2), an erroneous operation detection circuit detects this, and the number of erroneous operations detected by this erroneous operation detection circuit is compared with the preset number of erroneous operation alarm start times, and the number of erroneous operations is detected. 1. A fireproof safe equipped with an erroneous operation alarm device, characterized in that the erroneous operation alarm device comprises a comparator that outputs an output when the number of times the erroneous operation alarm starts is reached, and an alarm that is activated by the output of the comparator.