JPS58176370A - Fire resistant strong box capable of altering unlocking condition - 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 particularly relates to a fireproof safe whose unlocking conditions can be changed.

Conventional fireproof safes cannot change their unlocking conditions. In other words, the unlock number for unlocking the dial lock is set at the time of purchase, and to change it, the structure of the dial lock itself had to be changed. Therefore, even if the unlock number is known to someone else, the user cannot change it, resulting in insufficient theft protection.

The object of the present invention is to provide a fireproof safe that can change the unlocking conditions and eliminates this drawback.The feature is that an input device such as a keyboard is provided on the front side of the fireproof safe, and this input device allows the first The unlocking number and the second unlocking number can each be set freely, and OR conditions and AND conditions can be set, and when the OR condition is set, the first unlocking number When one of the and second unlocking numbers is input from the human-powered device, the locking mechanism provided on the back side of the fireproof safe will be unlocked, while if the AND condition is set, the second unlocking number will be unlocked. The locking mechanism is configured to be in an unlocked state when a first unlocking number and a second unlocking number are input from the input 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 concrete. A door 3 filled with I-toe 2 (see Figure 7) can be opened and closed by a pair of hinges 4 and 5.A handle 6 and a cylinder lock 7 are provided on the front side of the field 3. At the same time, a cosmetic case 8 is fixed.A dial 9 is rotatably supported on the cosmetic case 8 by a shaft 10, and 12 operation buttons displaying numbers from 0 to 9, #, and rice. Keyboard 1 with 11
2. A display section 13 that provides an 8-digit digital display using a liquid crystal display and a dry cell storage section 14 that can be opened and closed are provided. The shaft 10 of the dial 9 is also rotatably supported by an upper case 15 and a lower case 16 fixed within the decorative plate 8 via a pair of bearings 17 and 18. A rotary plate 19 is fixed to the shaft 10 so as to be located inside each case 15.16, and both sides of the rotary plate 19 (
Second, magnetic shielding plates 20 and 21 are fixed 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.
upper case 1 to correspond to the lowest position.
A ferrite magnet 24 is attached to 5 via a packing 23. Further, a reed switch 25 is attached to the lower case 16 at a position facing the ferrite magnet 24. Therefore, each magnetic shielding plate 20.2
When the first notch 22 is positioned corresponding to the ferrite magnet 24 and the reed switch 25, the reed switch 25 is turned on.

As is clear from FIG. 5, the peripheral end portion of the rotary plate 19 has
26, 27, 28 (slabs arranged in 5 rows in the radial direction indicating the binary numbers 0.1, 10, 11) are 1 at equal intervals in the circumferential direction.
The 00 column is transparent. That is, the slit 26 represents 0, the slit 27 represents 1 in the first digit,
The slit 28 represents the second digit 1, and each row is provided at every rotation angle of 6.6 degrees in the circumferential direction. 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 and Light emitting diodes 33, 34, and 35 are mounted via a mounting board 36 so as to be located opposite each other. Therefore, if all phototransistors 29, 30° 31 receive light, the value is 11, if each phototransistor 29°31 receives light, it is 1o, if each phototransistor 30°31 receives light, it is 1, and if only phototransistor 31 receives light, it is 0. It can be detected that the rotary plate 19 is rotated at the respective positions. And 0.1.10,
If detected in the order of 11.0..., counterclockwise, 0.11
．． By detecting 1o, 1.0, etc. in this order, it is possible to detect that the rotary plate 19 is rotating in the clockwise direction. In addition, as mentioned above, in the circumferential direction, each row of slits 26, 27.28 is provided at every rotation angle of 6.6 degrees, so the number of rows of each slit 26, 27.28 is detected and counted. By doing so, the amount of rotation of the rotating plate 19, that is, the amount of rotation of the dial 9, can be detected, and this amount of rotation is determined by the rotation angle 6.
．． Six degrees are converted to one 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 something that exists. Therefore, for example, to display 10203040 on the display unit 13, rotate clockwise by 45.2 degrees, counterclockwise by 792 degrees, and clockwise by 115.2 degrees.
It is only necessary to rotate it by 1512 degrees counterclockwise.

In other words, the configuration is such that 1 is displayed only after counting 26, 27, and 28 of each sleeve in the sixth column. These light emitting diodes 33, 34, 35, phototransistors 29, 30, 31, reed switch 25, rotating plate 19
The dial 9 and keyboard 12 equipped with
(see figure). As shown in FIG. 8 (1), the CPU
38 is electrically connected to the unlocking circuit 39 or the locking circuit 40 (
The RAM and ROM are also connected by an address bus and a data bus (2), respectively. Both circuits 39 and 40 are electrically ('-connected) to a motor serving as a drive mechanism to be described later.

The connection state between the manual device and the unlocking circuit 39 is determined by separately connecting the input terminals of the first unlocking number storage register 100 and the second unlocking number storage register 101 in the ram mode, and in the unlocking operation mode. Along with dial 9, the first
It is connected to the input terminals of an unlocking number manual panofur register 102 and a second unlocking number input panofa register 103, respectively. The first unlocking number storage register 100 stores a first unlocking number that has been programmed manually through the keyboard 12, and when a new first unlocking number is programmed through the keyboard 12 in a predetermined manner, the first unlocking number is stored in the register 100. 1 unlocking number is stored as this newly input number, and its output terminal is connected to the input terminal of the matching circuit 104. The first unlocking number input cover sofa register 102 has an output terminal that inputs the matching circuit 104 so that the first unlocking number entered manually using the keyboard 12 or dial 9 is input to the matching circuit 104 during an unlocking operation. It is connected to the input terminal of the circuit 104.In the matching circuit 104, the first unlock number inputted using the keyboard 12 or the dial 9 during the unlock operation is set in advance in the first unlock number storage register 100. It determines whether or not it matches the stored first unlock number, and outputs a match signal if they match, and outputs a mismatch signal if they do not match. The number storage register 101, the second unlocking number buffer register 103, and the matching circuit 105 are also connected to the first unlocking number storage register 100 and the first unlocking number storage register 100, respectively.
Unlock number person cover sofa register 102 and matching circuit 10
It has the same function as 4 and is connected in the same way. Each of the coincidence circuits 104 and 105 outputs its coincidence signal to an OR circuit 106 and an AND circuit 107, respectively. The output terminal of the OR circuit 106 is connected to the input terminal of an AND circuit 108, and The output end is the input end of the AND circuit 109 (the two are connected).

An OR condition signal is input to the AND circuit 108 from a control circuit 110 into which an OR condition or an AND condition unlocking condition at the time of an unlocking operation is inputted as a program using the keyboard 12. On the other hand, an AND condition signal is inputted to the AND circuit 109 from the control circuit 110 . Therefore, if an OR condition is programmed into the keyboard 12, the match circuit 104 or the match circuit 1
If a matching signal is output from either one of 05,
The output gates of the OR circuit 106, the AND circuit 108, and the OR circuit 111 are sequentially opened, and an unlock drive signal for causing one rotation in the forward direction is output from the unlock circuit 39 to a motor to be described later.

Furthermore, if an AND condition is manually programmed on the keyboard 12, the output gates of the AND circuit 107, AND circuit 109, and OR circuit 111 will open in sequence only when a match signal is output from each match circuit 104, 105. The unlocking circuit 39 outputs an unlocking drive signal for one rotation in the forward direction to a motor to be described later. That is, in the OR condition, when either the first unlock number or the second unlock number is input from the keyboard 12 or the dial 9, an unlock drive signal that rotates the motor once in the forward direction is sent to the unlock circuit. 39, and when it is an AND condition, the first
When both the unlocking number and the second unlocking number are entered manually from the keyboard 12 or the dial 9, an unlocking drive signal for rotating the motor once in the forward direction is output from the unlocking circuit 39. A display buffer register 112 is used to display a human input signal from an input device on the display unit 13.

Here, the aforementioned change of the unlock number and setting of the OR condition or the AND condition will be further explained. These changes and settings can be made in various ways by using the preset function of the microprocessor. Enter the same 6-digit value and press the # key to enable presetting.In this state C2, input the unlock number to be changed using the numeric keys of the operation button 11, and then press the # key.
The program may be programmed so that it can be changed by pressing the US key, inputting a new unlock number to be set using the numeric keys of the operation button 11, and pressing the US key of the operation button 11 again. For example, when changing the first unlock number, the same 6-digit number is 444, and when changing the second unlock number, the same 6-digit number is 555. 1 Unlock number from 12345678 to 10203
To change to 040, it is sufficient to press the operation buttons 11 of the keyboard 12 in the following n* order.

That is, 444#1234567B rice 1020304
0 Te, 12345678 and 10203040
are sequentially displayed digitally on the display section 13. Also, to set an OR condition or an AND condition, for example, 6
Set the same digit value to 666, then press the # key and select 1. All you have to do is program it so that you can set the conditions by pressing a predetermined number key and then pressing the rice key. The numeric keys are, for example, an OR condition when only the first unlock number is valid when D is pressed, an AND condition when the numeric key 1 is pressed (in this case, the same function as the OR condition), Pressing the number key 2 will manually create an OR condition when both the first and second unlocking numbers are valid, and pressing number key 6 will manually create an AND condition for the same case. It is best to program it so that it is invalid even if it is used.

Further, in the locking circuit 40, 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, and issue a detection signal, which is input to the CPU 38. and said CP03
A locking signal is issued from a control circuit (not shown) of B, and in response to this locking signal, a locking drive signal is issued to cause the motor to rotate once in the reverse direction. Note that 41 is a battery 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 long holes 45 and 46 transparently provided at a predetermined position so as to be slidable laterally.

The slide body 44 has an upper engaging part 47 and a lower engaging part 48, and filter rods 49, 50, 51 are fixed to the lower side thereof at predetermined intervals in the vertical direction, and springs are attached to the slide body 44. 52 and 53, it is constantly biased toward the upper right in FIG. Due to the biasing force of the springs 52 and 53, the slide body 44 is moved by its six rods 49.
．． 50° 51 protrudes from the side surface of the door opposite to the hinge and is engaged with one side wall 1a of the safe main body 1 (solid line state in FIG. 6), and at this time the field 3 is in a locked state. 54 is a motor for forward and reverse rotation fixed to a base plate 55 fixed to the back surface of the door 3;
As shown, it is electrically connected to the output terminals of the unlocking circuit 39 and the locking circuit 40.

A gear 56 is fixed to the output shaft of the motor 54, and the gear 56 is rotatably supported by a support (not shown) fixed to the base plate 55, and has a rotating shaft parallel to the base plate 55. It meshes with a gear 59 fixed to one end of the gear 58. A worm 60 is fixed to the other end of the rotating shaft 58, and the worm 60 meshes with a worm gear 62 fixed to a rotating shaft 61 rotatably mounted on the base plate 55. Note that this worm gear mechanism is configured to be able to transmit rotational force in the opposite direction as well. Further, a circular cam plate 64 having a U-shaped notch 63 is fixed to the rotating shaft 61, and when the motor 54 makes one rotation in the forward direction, the cam plate is rotated by the aforementioned gears as shown in FIG. It rotates half a turn clockwise. A free end of a lever 66 rotatably supported on a support shaft 65 vertically provided on the base plate 55 is stretched between the lever 66 and the rotating shaft 61 on the cam plate 64. spring 6
They are urged by the tensile force of 7 and are in contact with each other.

A pair of support plates 68° 69 are vertically installed on the base plate 55.
are each provided with a through hole, in which the lock par 70 is slidably (- supported).
A bin 71 located in the rotation path of the lever 66 is shown on the upper surface of the lever 66.
is provided, and a spring 72 is stretched between the support plate 69 and the support plate 69. Then, due to the tensile force of the spring 72, the locker 70 is moved to the support plate 69.
When it is in the protruding state (2 is located on the movement path of the lower engaging part 48 of the slide body 44, this is the locked state. Conversely, the lock par 70 is The state shown by the imaginary line in FIG. 2 in which the support plate 69 is penetrated is the unlocked state.

Numeral 73 is 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 E of . Therefore, when the door 3 is in the locked state, the upper engaging part 47 of the slide body 44 is engaged with the engaging plate part 73 of the cylinder lock 7, and the lower engaging part 48 is engaged with the locking plate part 73 of the cylinder lock 7.
When locked, the slide body 44 is prevented from moving to the left in FIG. 6. 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 is moved by the urging force (1 force) of the spring 52. It becomes possible to move to the left in the figure.

A vertically long oblong hole 74 is transparently provided slightly above the upper end of the slide body 44 in the height direction.
5 is loosely fitted. The bin 75 is fixed to the upper end of an arm 76, and the lower end of this arm 76 is attached to the shaft 7 of the handle 6.
7 is fitted and fixed.

Therefore, the lock par 70 and the cylinder lock 7
When both are in the unlocked state, the handle 6 is moved to the first position.
When the arm 76 rotates clockwise in the figure, the arm 76 moves counterclockwise in the figure 6 along with the shaft 77, and the bin 7
5 moves to the left in the figure, the slide body 4
4 also moves in the same direction, resulting in the state shown by the virtual 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.

Reference numeral 78 denotes a 1F piece, which is rotatably supported by a bin 79 at a predetermined position on the back side of the door 3.

Further, the locking piece 78 is urged by a spring 80 to rotate clockwise in FIG. 6.

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 third 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, 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 door 3 so as to be movable in its axial direction. The moving rod 82 is moved in conjunction with the opening/closing operation of the door 3. When the door 3 is closed, the moving rod 82 moves to the right in FIG. The locking piece 78 is rotated clockwise (twice).
When the C double layer 3 is closed when it is in the unlocked state where it locks the sixth engaging portion 81 of the slide body 44, the locking state is released and the slide body 44 moves to the upper right in FIG. It becomes possible to move in the direction.

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

First, when only the first unlock number is set as an OR condition, when the unlocked state is set from the locked state force shown in the solid line state in Fig. direction, the notch 2 of the magnetic shielding plate 20.21
When the reed switch 2 rotates to a position corresponding to the ferrite magnet 24 and the reed switch 25, the reed switch 25 is turned on and power is supplied to each circuit. Next (2) Turn the dial 9 again and repeat the reversing operation in units of two digits according to the first unlock number, for example, eight digits.

For example, if the first unlock number is 12345678, when the dial 9 is reversed from the position where the reed switch 25 is turned on, the rotary plate 19 rotates and each slit 26° 27.28 rows is moved. Light emitting diodes 33, 34° 35 and phototransistors 29, 3
0.31 is detected, and the rotation amount of the rotating plate 19 begins to be digitally displayed on the display unit 13, so when 12 is displayed, the rotation is stopped. Then, when the dial 9 is reversed again and 34 is displayed on the display section 13, the dial 9 is further reversed, and when 56 is displayed on the display section 13, the dial 9 is further reversed and 78 is displayed on the display section 13. At this point, 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. In this way, when the official first unlocking number is entered manually using the dial 9, this is converted into a signal as the count number of each column 26, 27, and 28, and the matching circuit 104 of the CPU 38 outputs the first unlocking number. When it is confirmed that the preset first unlock number sent from the memory register 100 and the input number sent from the first unlock number buffer register 102 match, the OR circuit 106 and the AND circuit are executed. 108, the output gate of the OR circuit 111 opens and an unlocking signal is issued, and in response to this signal, the unlocking circuit 39 issues an unlocking drive signal to the motor 54. As a result, the motor 54 rotates once in the forward direction, and the cam plate 64 rotates half a rotation counterclockwise in FIG. 2 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 bottle 71 upward in the figure. move towards.

As a result, the locking member 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 is imaginary in FIG. When it stops in the line state, the lockper 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. Here, if the handle 6 is rotated clockwise in FIG. 1, the slide body 4
4 moves from the solid line state position in FIG. 6 to the imaginary line state position in FIG. 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 (as 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 in the same direction six times or more. Then, the locking plate portion 73 protrudes, while the motor 54 rotates once in the opposite direction in response to the locking drive signal to return the lever 66 to its original position, and the locking member 70 protrudes from the support plate 69 due to the biasing force of the spring 72. As a result, the door 3 is again in the locked state as shown by the solid line in FIG. 6, and the door 3 is in the locked state.

In addition, if only the first unlock number is entered with the AND condition, or if the first unlock number and the second unlock number are entered with the OR condition or the AND condition, the normal unlock will occur. Even when an operation is input, only the signal transmission path is different as described above, and the operation after the unlock drive signal is issued is the same as that described above.

In the above-described embodiment, a case has been described in which each unlocking number is input using the dial 9, but it is also possible to input this using the keyboard 12. Furthermore, it goes without saying that the electronic circuit and lock mechanism necessary for the present invention are not limited to those of the embodiments described above.

As is clear from the above explanation, according to the present invention, two unlocking numbers can be easily changed (by adding an OR condition or an AND condition, the probability that the unlocking number will be known to another person can be reduced). In addition to lowering the
By setting an unlock number and using an AND condition, it becomes impossible to unlock the safe unless two people perform the unlocking operation separately, which greatly improves the theft prevention properties of the fireproof safe. It is possible to achieve the following effects.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show a preferred embodiment of the present invention, and FIG. 1 is an overall front view of the safe, and FIG. 2 is an enlarged exploded view showing the arrangement of slits in the enlarged perspective rotary plate of the cosmetic case. , Figure 6 is a rear view of the door, Figure 7 is partially omitted 1... Safe body 3...
・Door 8 ・Cosmetic case 9 ・Dial 1
2...Keyboard 13...Display section 19...
Rotating plate 20.21... Magnetic shielding plate 24...
Ferrite magnet 25= ・Reed switch
26. 27. 28 ・ ・ ・ Pickpocket 29. 3031... Phototransistor 33, 34.35... Light emitting diode
38...CPU39...-Unlocking circuit 40...
Locking circuit 44...Sliding body 49.50.5l-
-=Rod 54...Motor 64...Cam plate 66...Lever 70...Lock par
78... Locking piece 82... Moving rond. Patent applicant King Kogyo Co., Ltd. Microdata Agent Patent attorney Chiba Futoshi Ko, Z-1 5th tail 40 Low 1 sun, 6th 5' Kuniatsu et al. 1]

Claims (1)

[Claims] In a fireproof safe consisting of a main body filled with a fireproofing material, a door also filled with a fireproofing material and attached to the main body so as to be openable and closable, and a locking mechanism provided on the back side of the door, the surface side of the fireproof safe is An input device is provided in the input device, and the input device allows the first unlock number and the second unlock number to be freely changed so that they can be changed, and also to set an or condition and an and condition. None, if an OR condition is set, the lock mechanism is set to an unlocked state when either the first unlock number or the second unlock number is input from the input device, while an AND condition is set. fireproofing device capable of changing unlocking conditions, characterized in that the locking mechanism is configured to be in an unlocked state when a first unlocking number and a second unlocking number are input from the input device. safe.