JP3388735B2 - Locking device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device used for doors of buildings such as houses and buildings, safes, automobiles, and the like, and more specifically, a security using both an electric lock and a mechanical lock or a single electric lock. High locking device.

[0002]

2. Description of the Related Art Recently, the crime of getting into a thief by opening a cylinder lock using a tool such as tweezers or a wire (called picking) has rapidly increased, which has become a social problem.
A general cylinder lock is also called a pin tumbler lock, and the cylinder lock has a double structure of a fixed outer cylinder and a rotating inner cylinder. When the key is not inserted, a member called a tumbler pin exists between the outer cylinder and the inner cylinder so that the inner cylinder cannot rotate and cannot be unlocked. When the key is inserted and the shape of the key matches the position and height of each tumbler pin, all the tumbler pins that were pierced between the outer cylinder and the inner cylinder are removed, allowing the inner cylinder to rotate, Can be unlocked. It is said that this cylinder lock is relatively easy to pick because the tumbler pins are aligned.

On the other hand, remote control keys and the like have been proposed for the purpose of preventing picking as well as convenience, and just like the case of being put to practical use in automobiles, by pushing the remote control button near the door, infrared rays and radio waves Can be locked and unlocked. Also, a system for unlocking with a personal identification number using a numeric keypad has been developed.

Further, in Japanese Unexamined Patent Publication No. 11-315653, a member that operates by an electronic code is added to a part of a normal cylinder lock, and the unlocking can be performed only when the electronic codes match in addition to the matching of the key shapes. Possible electromechanical cylinder locks are described.

[0005]

However, the conventional locking and
Each unlocking system had the following problems.
In the personal identification number unlocking system using the numeric keypad, the device tends to be large, and if the personal identification number is leaked or decrypted, there is no effective means for preventing picking. Even with an unlocking system using remote control keys, there is no effective way to prevent picking when the electronic code is decoded.

Also, according to the system disclosed in Japanese Patent Laid-Open No. 11-315653, the mechanical unlocking information and the unlocking information by the electronic code are not linked. Therefore, if each is unlocked over time, picking will occur. It will be possible.

That is, the present invention has been made in view of such conventional problems, and it is possible to prevent picking by a relatively simple device without significantly changing the conventional locking system. The purpose is to provide a device.

[0008]

[Means for Solving the Problems ] [1] to [12] below
The invention according to the present application among the disclosure items of [6],
It is the locking device according to [7] and [11].

[1] (a) A key having a digital code portion having digital code information and a key mountain portion having a key mountain shape notation, and (b) an unlocked state or an unlockable state when the key mountain shape matches ( Hereinafter, the unlocked state or the unlockable state is simply referred to as an unlocked state.), (C) an electric lock that is unlocked when digital codes match, and (d) time measurement. It has a means to measure the time from when the mechanical lock or the electric lock is unlocked first, and fully opens when the other is unlocked within a predetermined waiting time. If the lock is permitted and the other does not open within the predetermined waiting time, the unlocked state of the lock already in the unlocked state is canceled or the other lock is changed to the unlocked state. Locking device characterized by prohibiting .

[2] The electric lock controls / calculates the motor for driving the locking / unlocking operation and the digital code to judge the coincidence and controls the motor by referring to the time measuring means. By having a means for controlling the unlocked / locked state of the electric lock, it is possible to allow full unlocking, cancel the unlocked state of the electric lock when already in the unlocked state, or lock the locked state. The locking device according to the above [1], wherein each operation of prohibiting the electric lock from changing to an unlocked state in the case of 1) is performed.

[3] The above [1] or [2], wherein the digital code changes with time.
The described locking device.

[4] The key has a clock, a memory that stores a digital code, and a code generator that refers to the memory according to the time of the clock, and according to the unlocking operation time of the user. The locking device according to the above [3], characterized in that the digital code is generated.

[5] The lock device according to [4], wherein the digital code is sent from the key to the electric lock by wireless communication.

[6] The mechanical lock has a locking tongue for locking by engaging with a hole on the wall side, and the electric lock has a bolting part that fits with the locking tongue. , When the electric lock is in the locked state, the locking tongue is prevented from moving by fitting the locking tongue and the bolt, and when the electric lock is in the unlocked state, the locking tongue and the bolt are removed. The locking device according to any one of the above [1] to [5], wherein the locking tongue is movable after the fitting is released, and the unlocking of the mechanical lock is permitted only during the period.

[7] The above-mentioned [1] to [1], wherein the mechanical lock and the electric lock are installed independently of each other without mechanically fitting or engaging with each other.
The locking device according to any one of [5].

[8] The following (1a) to (1d): (1
a) Refer to the clock that generates time information according to the unlocking operation time of the user, (1b) the memory that stores the time and digital code comparison table, and (1c) the comparison table stored in the memory. , A code generator for generating a digital code corresponding to the generated time information, and (1
d) A key having a transmitter for sending time information and a digital code to the lock side, and (2a) to (2d) below: (2a) a receiver for receiving time information and a digital code from the key side, (2b) time. And (2c) Refer to the time and digital code comparison table stored in the memory for storing the digital code comparison table, and the combination of the time information and the digital code received from the key side exists in the comparison table. Computing means for determining whether or not, and (2d) locking
A lock having a controller for controlling a motor for driving an unlocking operation, and a digital lock device.

[0017]

[9] The key has a memory rewriting means on the key side for rewriting a comparison table of time and digital code stored in the memory, and the lock has a comparison table of time and digital code stored in the memory. 9. The lock side memory rewriting means for rewriting the key side and the lock side rewriting means respectively have communication means, and the key side memory and the lock side memory can be rewritten simultaneously by communication. Digital locking device.

[10] (1a) A key in which digital code information is encoded in a key form, and (2a) to
(2c): (2a) Code reading means for recognizing key form and reading digital code, (2b) memory storing digital code, and (2c) digital code read from key form, and stored in memory. A digital locking device comprising: a lock having a calculating means for comparing codes.

[11] As the electric lock, the above [8] or

Using the digital lock device of [9]
The locking device according to [1], [2], [5], [6] and [7] .

[12] As the electric lock, the above [1
0] The locking device according to [2] above, which uses the digital locking device.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a flow chart for explaining the overall configuration of the locking system of the present invention. The key used in the present invention has a normal key mountain and a digital code portion, and when the user tries to unlock (S1),
On the lock side, a determination is made as to whether or not the shape of the key crests is coincident (S2a) and a determination as to whether or not the digital codes (ID) are coincident (S2d). The acquisition of the key mountain shape information is generated by inserting an ordinary mechanical key into a keyhole and rotating the key. The acquisition of the digital code information depends on how the digital code section is configured and how the digital recognition on the lock side is configured, and a specific example will be described later. Further, which of the determination in S2a and the determination in S2d is performed first depends on the configuration of the mechanical lock and the configuration of the electric lock.

When the key mountain shapes match, the mechanical lock is unlocked or unlockable. In the flowchart of FIG. 1, this is represented as an unlocked state: AO = 1 (S3a). On the other hand, when the digital codes match,
The electric lock is unlocked or unlockable. In the flowchart of FIG. 1, this is expressed as an unlocked state: DO = 1 (S3d). In the actual configuration, the unlocking signal (unlockable signal) AO = 1 and / or D is actually used.
In some cases, O = 1 is transmitted, but in particular, in the case of a mechanical lock, it may not be necessary to transmit a signal as described later in a specific example.

Then, the time is measured from the time when the mechanical lock or the electric lock is first brought into the unlocked state (the unlockable state) (S4). When the other one is unlocked (unlockable state) within a preset waiting time (TT time), all the locks are unlocked and the door can be opened (S5, S6). However, within the TT time, the remaining other lock is unlocked (unlockable)
If not, cancel the unlocked state of the mechanical lock or electric lock that was previously unlocked (unlockable state) or unlock the remaining locks that are not unlocked yet. It is prohibited to change to (S5, S7). In S7 of the flowchart of FIG. 1, the locked state of the mechanical lock is AO =
0, the locked state of the electric lock is represented by DO = 0.

As described above, in this locking device, the mechanical lock and the electric lock are temporally linked to each other, so that both the mechanical lock and the electric lock have a limited waiting time for picking. It has to be opened in, which is virtually impossible.

Here, the waiting time can be set as appropriate, for example, 1 second or more and 20 seconds or less, preferably
It can be set within 10 seconds, more preferably within 5 seconds.

In the locking device of the present invention, it is preferable that the digital code sent from the key to the electric lock changes with time. That is, even if the digital code is decoded by changing the digital code, the code has already changed after a certain specific time, so that the electric lock cannot be unlocked, and the picking cannot be performed. It is possible to provide a more difficult locking device.

It should be noted that each means and each constituent element of the locking device of the present application include implementation by hardware (including a computer or the like) or cooperation of hardware and software.

Further, the lock device of the present invention can be applied not only to doors of buildings such as houses and buildings, but also to all necessary locks such as safes and automobiles.

Next, a specific example will be described.

<Structural Example of Entire Locking Device> FIG. 2 shows an example of the locking device of the present invention. In this figure, the wall 12 is partially hollowed out, and FIG. 3 is an enlarged view of the locking device portion. In this example, in the mechanical lock 13 attached to the door 11, the inner cylinder is rotatable when the key ridges of the keys match, and the locking tongue portion 14 is similar to a normal mechanical lock.
Becomes movable. The electric lock 20 has a motor, a timer (time measuring means), and a control / arithmetic means for judging the coincidence of digital codes and controlling the motor with reference to the timer. Then, the motor can be used to move the boot 22 up and down, while the locking tongue 14 is provided with a hole (which may be a recess or the like) to be fitted with the boot 22. . 2,
3 shows a locked state, in which the barbed portion 22 and the locking tongue portion 14 are fitted to each other. In this state, even if the key locks are aligned and the mechanical lock is in the unlockable state, the locking tongue portion is locked. The part cannot move to the left and right, so it is impossible to unlock all locks.

In order to unlock all locks in the locking device of this example, first, the digital code is sent from the key to the electric lock, and when the agreement of the digital codes is confirmed on the electric lock side, the bar is raised. It moves and is pulled out from the locking tongue. In that state, when the unlocking operation of the mechanical lock is performed by the key having the matching key crest, the locking tongue portion can move to the right, and thus the full unlocking can be performed.

However, if the mechanical lock is not unlocked within the set waiting time after the electric lock is in the unlocked state (that is, the lock bar is pulled out from the locking tongue). , The boot is lowered and the locking tongue is locked again. Therefore, to pick this locking device,
Since you have to unlock the mechanical lock within a limited time after unlocking the electric lock, break both the electric lock and the mechanical lock within a very limited time of several seconds. Is extremely difficult.

The key used with the lock having the electric lock and the mechanical lock has a conventionally known key ridge and a digital transmission section capable of transmitting a digital code. FIG. 4 schematically shows one example thereof. This key 24, together with a normal key mountain 25, is a digital transmission unit 26.
Is equipped with. When the key is inserted into the keyhole, the insulator 27
The metal member inside the keyhole conducts between the contacts 28a and 28b pulled out from the digital transmission unit through the inside or the surface of the key, and this serves as a trigger to transmit the digital code. Instead of such a contact method, a switch may be provided on the key to serve as a trigger for digital code transmission.

The transmission of the digital code may be either a wired or wireless communication method, but in consideration of downsizing and simplicity of the device, it is represented by radio communication using short waves or the like or optical communication using infrared rays or the like. The wireless communication method is preferable. The digital transmission unit provided in the key has such a transmitter and a memory storing a digital code. Corresponding to this, the electric lock side also has a digital code receiving device. In FIG. 3, the antenna 21 for receiving radio waves is schematically shown, but in the case of infrared receiving, the light receiving portion is placed outside the wall. It should be installed on the side.

The digital code transmitted and received may be a fixed code, but in the present invention, it is preferable that the digital code changes. At this time, it is preferable that the digital code automatically changes with the passage of time without the user being aware of it.

<Structural Example 1 of Transmitted / Received Digital Code> An example of a method of changing the transmitted / received code will be described with reference to FIG.

In this example, a clock 51 is provided on the key side, and when a command to transmit a digital code is received, the clock time is sent to the code generator 52.
The code generator refers to the memory 53, reads the digital code from the memory address corresponding to the clock time, and sends the code to the transmitter 54. The transmitter 54 pairs the time of the clock and the digital code to transmit as communication data 55 by radio waves, infrared rays, or the like. FIG. 6 shows an example of the correspondence between the memory address and the code, which is a 4-digit binary system for the sake of simplicity. For example, the address 001
When a transmission command is received at a certain time associated with 0, the clock time and the code 0110 are transmitted as a pair.

On the other hand, on the lock side, this is received by the receiver 56 and sent to the decoder 59 (calculation means). When the decoder refers to the corresponding address 0010 of the memory 58 based on the time information of the clock, since the code 0110 is stored in the memory 58 as shown in FIG. 6, it is confirmed that the received code 0110 coincides with the received code 0110. When a match is confirmed in this way, information that the match has occurred is sent to the controller 60, the timer 61 is referred to as necessary by the configuration of the mechanical lock, and a drive command is sent to the motor 62, and the electric Open the lock.

In this example, since the code information in the memory on the key side and the information on the lock side have the same contents, the digital code can be changed only by the clock on the key side, so that the device structure can be simplified and downsized. . The addresses and codes of the key-side memory and the lock-side memory may not be exactly the same, as long as they can be dealt with according to a specific rule. Further, the clock time is used together with the code as the transmission / reception data, but in this example, the same operation can be performed by sending the address address. Further, the clock here is not limited to the one that gives the actual time such as what day, what hour, and what second, but it may be composed of a pulse generator and a pulse counter, and may simply give the number of pulses. Good.

In the example of FIG. 6, the code is shown with only 4 digits in binary for simplicity. For example, considering a system in which the code changes every second (1 day = 86400 seconds) with one day as a break, one lock system (1
(Per door) 86400 addresses are required. Therefore, for example, if a code length of 4 bytes (32 bits) is prepared as the memory capacity, 2 ³² (about 4.3 billion) codes can be obtained. Therefore, 2 ³² (about 4.3 billion) different codes can be selected for one of the 86400 addresses.

[0041]

[Equation 1]

A door lock system can be provided.

Further, in the present invention (applicable to all the embodiments including the present configuration example), in order to prevent the digital code from being decoded, a means for prohibiting access at the same clock time is further provided. preferable. That is, for example, in the example of FIG. 5, if the clock time data and the code information received by the decoder 59 are decoded and the clock time data is the same as the clock time data received a while ago, this is clear. Is illegal access. Therefore, the time data of the received clock is held for a predetermined time (HT time), and when the same clock time is received within the HT time, for example, by prohibiting the reference of the code correspondence table of the memory 58, etc. It is preferable to configure the logic circuit so that unlocking is not allowed. Here, the HT time considers how long the digital code is changed, and when there are a plurality of identical keys such as when a family has a spare key, the time shift between them is taken into consideration. , Can be set appropriately. As the HT time, for example, a range of about 30 seconds to 5 minutes, for example, about 60 seconds can be set.

<Structural Example 2 of Transmission / Reception Digital Code> As a different mode of changing the digital code,
By installing synchronized clocks indicating the same time on the key side and the lock side, it is possible to transmit the digital code with time without transmitting the time information of the clock as the transmission data, or by transmitting only the digital code. Can be changed. That is, when a clock is installed also on the lock side, instead of referring to the memory 58 based on the clock time information received by the decoder 59 in the example of FIG. The memory 58 is referred to based on According to this method, the decoding of the digital code is extremely difficult and the security is high. However, if the clocks on the key side and the lock side are deviated from each other, the lock cannot be unlocked. Reset) must be performed frequently, which tends to make the device bulky.

<Structure Example 3 of Transmitted / Received Digital Code> A different mode of changing the transmitted / received digital code will be further described.

In this system, the code pattern is rewritten on the key side and the lock side at any time to further enhance the safety. One example is shown in FIG. In this example, the memory rewriting units 70 and 71 on the key side and the lock side, respectively.
Is provided, and both memories are changed at the same time by communicating between the key side and the lock side memory rewriting unit when necessary. Normally, the lock side becomes the master, and it is easy to rewrite the key side memory according to the lock side data. Further, when rewriting the memory, for example, an input unit 72 such as a keyboard (numerical keypad) or the like is provided on the lock side, and the memory is changed according to the input data. The memory rewriting unit on the lock side includes a necessary memory and an arithmetic unit.

The advantages of such a memory rewritable system will be described with reference to FIG. First, in the digital code changing method described with reference to FIGS. 5 and 6, a certain time is assigned to one address. Then,
When one time has elapsed, the same address is referenced again and the same digital code is transmitted from the key side to the lock side as an unlock request signal. Then, as described above, when the unit is one day, the same digital code is used at exactly the same time. In practice, by assigning one cycle to an odd time, the length of one cycle is unknown, and the same time does not become the same code, so this is sufficiently safe, but codes in the same order It will be repeated periodically.

Therefore, the memory rewritable method is a method of rewriting a code stored in an address corresponding to time. FIG. 11A is a code correspondence table before rewriting. The address 00001 indicated by the arrow
Let's say it's a place to store code for a particular time.
Before rewriting, the code 0100 is stored, but by rewriting, as shown in FIG. 11B, the code 0100 is stored.
01 has been replaced. At that time, both codes are rewritten at the same time by communication between the lock side and the key side. As a result, the order of the codes is changed, and even if the code is changed in a cycle of one day, different codes correspond to the same time, which makes unauthorized unlocking more difficult. Further, when one of the plurality of keys is lost, by rewriting the code of the remaining key, the lost key becomes unusable and unauthorized unlocking can be prevented.

FIG. 12 schematically shows a method of performing contact-type communication for rewriting on the key side and the lock side. That is, the key box 80 connected to the door lock after unlocking and entering the room
When the key 81 is pushed in, the terminal 82 comes into contact with the terminal on the lock side to enable communication. Therefore, by inputting from the ten-key pad 83, the lock side and the key side digital codes are rewritten at the same time.

The memory rewriting communication between the key side and the lock side may be performed by non-contact communication such as infrared communication or radio wave communication.

<Structure Example 4 of Transmitting / Receiving Digital Code> In the digital code changing system described above, the code to be transmitted / received is changed, but it is also useful to add a fixed code to the transmitting / receiving digital code. is there. For example, as shown in FIG. 13, even in the case of a method in which a fixed code is added before a variable code and the memory is rewritten (described in Configuration Example 3 of transmission / reception digital code), the fixed code section prohibits rewriting. By providing the fixed code portion, the effect of preventing unauthorized unlocking can be further enhanced, and the fixed code can be used as, for example, a group ID. For example, when a lock device is installed at the entrance of a condominium and each room, and when a lock device is installed at the entrance of a company and each floor, the representative lock at the entrance of a condominium or the entrance of a company is unlocked with a fixed code In this way, the electric lock according to the present invention using the variable code (or both the variable code and the fixed code) is used as an individual lock such as an entrance of each room or each floor. With such a configuration, the security of the individual lock can be enhanced without hindering the unlocking / locking of the representative lock that must be shared by many people. The method of adding the fixed code can also be added to the method described in the configuration example 1 or 2 of the transmission / reception digital code.

<Other Configuration Example of Entire Locking Device> In the example shown in FIGS. 2 and 3 described above, the structure of the hollow portion and the locking tongue fitted thereto is such that the locking tongue portion is The configuration is not limited to that shown in this example as long as it is configured to prevent movement.

Next, FIG. 7 shows a different embodiment of the present invention. In this example, the electric lock 30 is provided independently of the mechanical lock 13. The electric lock 20 shown in FIG.
Then, instead of moving the bolt 21 up and down, in the electric lock 30, by moving the locking tongue 31 left and right,
It locks.

As described above, in the structure in which the electric lock and the mechanical lock are independently provided, it is determined whether the key shapes match (S2 in FIG. 1).
Matching between a) and digital code (S2d in FIG. 1)
Either of these may be performed first. However, when the mechanical lock is unlocked first, a means for detecting the unlocked state is provided,
When the electric lock does not become the unlocked state within a predetermined TT time after the mechanical lock is unlocked, the electric lock is prohibited from changing to the unlocked state (S5 and S7 in FIG. 1). If the user or picker gives up unlocking and returns the mechanical lock, AO =
0 and DO = 0 are reset, and the initial state is restored.

<Other System for Digital Code Transmission / Reception> In the above description, wireless communication has been described as a digital code transmission / reception method, but a code may be physically added to the key side. For example, in the key 33 shown in FIG. 8, each mountain (34a) is provided on the opposite side of the key mountain 35.
Up to 34d) the digital code section 3 representing the heights of 1 and 0
4 is provided. This digital code can be read on the lock side in a contactless manner by a code reading means such as an optical sensor or a magnetic sensor. Then, by referring to the memory storing the lock-side digital code, the digital code read from the key form and the code stored in the memory are compared by the operation means, and when they match, the unlocking information of the electric lock is obtained. It should be generated.

Further, as shown in FIG. 9, a digital code portion 37 may be constructed by a bar code (or black dot), a magnetic point, etc. on the key 36, and the lock side can read this.

Each of these keys has a mechanism for electrically locking the locking tongue of the mechanical lock as shown in FIG. 2 and a mechanism for separately providing an electric lock as shown in FIG. It is applicable to both. However, the digital code is fixed, the number of different codes is limited to some extent, and an attempt to increase the number of codes results in a large size, which is inferior to the above-described form having a memory on the key side.

<Mode of Using Electric Lock Alone> In the above description, the electric lock portion can be used alone as a digital locking device. In this case, the "key" in the digital locking device does not have to be in the shape of a so-called key, (1a) a clock that generates time information according to the unlocking operation time of the user, (1b)
Memory for storing time and digital code comparison table,
(1c) a generator for reading out a digital code corresponding to the generated time information by referring to a comparison table stored in the memory, and (1d) a transmitter for sending the time information and the digital information to the lock side, and Therefore, there is no particular limitation as long as it can accommodate the memory rewriting means, the input means for informing the user of unlocking, and the like. Therefore, cards (magnetic cards, contact / non-contact IC cards), mobile phones,
It is also possible to give a function of the key of this digital lock device to a digital timepiece, a digital camera, a car digital key, or the like.

As the method of changing the transmission / reception digital code, the methods described in the configuration examples 1 to 4 of the transmission / reception digital code are particularly preferable.

[0060]

According to the present invention, a comparatively simple device can provide a locking device capable of preventing picking with a slight modification without making a great change to the conventional locking system.

[Brief description of drawings]

FIG. 1 is a flowchart illustrating the entire configuration of a locking system according to the present invention.

FIG. 2 is a diagram showing an example of a locking device.

FIG. 3 is a partially enlarged view of the locking device of FIG.

FIG. 4 is a diagram showing an example of a key.

FIG. 5 is a diagram illustrating an example of a method of changing a code to be transmitted and received.

FIG. 6 is a diagram showing an example of correspondence between a memory address inside a memory and a digital code.

FIG. 7 is a diagram showing an example of a locking device.

FIG. 8 is a diagram showing an example of a key.

FIG. 9 is a diagram showing an example of a key.

FIG. 10 is a diagram illustrating an example in which a method of changing a code to be transmitted and received is different.

FIG. 11 is a diagram illustrating an example of correspondence between a memory address inside a memory and a digital code, and how the digital code is changed by rewriting.

FIG. 12 is a diagram schematically showing a method of performing contact-type communication for rewriting on the key side and the lock side.

FIG. 13 is a diagram for explaining a method of using a fixed code and a variable code as a transmission / reception digital code.

[Explanation of symbols]

11 doors 12 walls 13 mechanical locks 14 Locking tongue 20 electric lock 21 antenna 22 Kanuki part 24 keys 25 Kagiyama 26 Digital transmitter 27 Insulator 28a, 28b contact 30 electric locks 31 Locking tongue 51 clock 52 Code generator 53 memory 54 transmitter 55 Communication data 56 receiver 58 memory 59 decoder 60 controller 61 timer 62 motor 70 Memory rewriting unit 71 Memory rewriting unit 72 Input section

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E05B 49/00-49/04 E05B 35/14 E05B 47/06

Claims (12)

(57) [Claims] 1. A key having (a) a digital code portion having digital code information and a key mountain portion having a key mountain shape notch, and (b) an unlocked state or an unlockable state when the key mountain shapes match (hereinafter The unlocked state or the unlockable state is simply referred to as an unlocked state. The same applies to other claims.), And (c) an electric lock that is unlocked when the digital code matches. And (d) time measuring means, and the time is measured from the time when the mechanical lock or the electric lock is first opened, and the other is unlocked within a predetermined waiting time. When fully unlocked, when the other side does not open within the predetermined waiting time,
A locking device that cancels the unlocked state of a lock that is already in the unlocked state or prohibits the other lock from changing to the unlocked state, wherein the mechanical lock engages with a hole on the wall side. Has a locking tongue for locking by means of the electric lock, and the electric lock has a bolt engaging with the locking tongue, and when the electric lock is in the locked state, the locking tongue and the bolt are fitted together. When the electric lock is in the unlocked state, the locking tongue is disengaged from the lock tongue and the locking tongue is allowed to move. A locking device that permits unlocking of a lock. 2. An (a) a key having a digital code portion having digital code information and a key mountain portion having a key mountain shape notch, and (b) an unlocked state when the key mountain shape matches (the unlocked state is A mechanical lock according to claim 1), (c) an electric lock that is unlocked when the digital codes match, and (d) a time measuring means, The time is measured from the time when the mechanical lock or the electric lock is opened first, and when the other is opened within the predetermined waiting time, the full unlock is permitted. , If the other does not become unlocked within the specified waiting time,
A locking device that cancels the unlocked state of a lock that is already in the unlocked state or prohibits the other lock from changing to the unlocked state, wherein the mechanical lock and the electric lock are mechanical A locking device characterized by being installed independently of each other without fitting or engaging with. 3. The electric lock is a control / arithmetic means for judging the coincidence between a motor for driving a locking / unlocking operation and a digital code and for controlling the motor by referring to the time measuring means. By controlling the unlocked / locked state of the electric lock,
Allowing full unlocking, canceling the unlocked state of the electric lock when already in the unlocked state, or prohibiting the electric lock from changing to the unlocked state when in the locked state, The locking device according to claim 1 or 2, which performs each operation. 4. The locking device according to claim 1, wherein the digital code changes with time. 5. The key has a clock, a memory that stores a digital code, and a code generator that refers to the memory according to the time of the clock, and according to the unlocking operation time of the user, The locking device according to claim 4, wherein the digital code is generated. 6. The locking device according to claim 5, wherein the digital code is sent from the key to the electric lock by wireless communication. 7. An (a) key having a digital code portion having digital code information and a key mountain portion having a key mountain shape notch, and (b) an unlocked state when the key mountain shape matches (the unlocked state is A mechanical lock according to claim 1), (c) an electric lock that is unlocked when the digital codes match, and (d) a time measuring means, The time is measured from the time when the mechanical lock or the electric lock is opened first, and when the other is opened within the predetermined waiting time, the full unlock is permitted. , If the other does not become unlocked within the specified waiting time,
A locking device that cancels the unlocked state of a lock that is already in the unlocked state, or prohibits the other lock from changing to the unlocked state, wherein the key includes the following (1a) to (1d): (1a) A clock for generating time information according to the unlocking operation time of the user, (1b) a memory for storing a time / digital code comparison table, and (1c) a comparison table stored in the memory. And a code generator for generating a digital code corresponding to the generated time information, and (1d) a transmitter for sending the time information and the digital code to the lock side, and the electric lock has the following (2a) to (2d): (2a) a receiver for receiving time information and a digital code from the key side, (2b) a memory for storing a time / digital code comparison table, (2c) a time and a memory stored in the memory An arithmetic means for referring to the tar code comparison table and determining whether the combination of the time information received from the key side and the digital code exists in the comparison table, and (2d) a motor for driving the locking / unlocking operation. A locking device having a controller for controlling. 8. The key has memory rewriting means for rewriting the comparison table of the time and digital code stored in the memory, and the electric lock stores the time and digital stored in the memory. The lock side memory rewriting means for rewriting the code comparison table is provided, and the key side and the electric lock side rewriting means respectively have communication means, and rewrite the memory on the key side and the electric lock side simultaneously by communication. The locking device according to claim 7, which can be. 9. The electric lock has a motor for driving a locking / unlocking operation, and the controller controls the motor by referring to the time measuring means to open the electric lock. By controlling the locked / locked state, it allows full unlocking, cancels the unlocked state of the electric lock when it is already in the unlocked state, or unlocks the electric lock when it is in the locked state. 9. Each of the operations of prohibiting the change to [4] is performed.
The described locking device. 10. The locking device according to claim 7, wherein the digital code is sent from the key to the electric lock by wireless communication. 11. The mechanical lock has a locking tongue for locking by engagement with a hole on the wall side, and the electric lock has a bolting part that fits with the locking tongue. When the electric lock is in the locked state, the locking tongue is prevented from moving by fitting the locking tongue and the bolt, and when the electric lock is in the unlocked state, the locking tongue and the bolt are fitted. The locking device according to any one of claims 7 to 10, wherein the locking tongue portion is movable to allow the unlocking of the mechanical lock only within that period. 12. The mechanical lock and the electric lock are installed independently of each other without mechanically fitting or engaging with each other. The described locking device.