JPH09268811A - Key holder used in key control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure control by holding ID codes in a key holder, connecting a key to a wire formed by extending a data line in the holder, and detecting the existence/absence of a key in storing the key holder in a key control device. SOLUTION: In a key control device 1 for a multiple dwelling house or the like, an integrated circuit for holding ID codes in a key holder 5 in the case of centralized-controlling keys 3 is incorporated, a data line is extended to the outside of the key holder 5 to form a connecting wire 4, and the key 3 is connected to the connecting wire 4. In the case of storing the key 3 in the key control device 1, an ID card 9 is inserted in a card reader 8 to be stored in a vacant key holder holding part (for example, a hole No.1) and locked. In this case, if the wire 4 is cut and there is no key 3, the control device 1 is not operated, besides abnormality is announced from the controller by a buzzer or the like to disable only the holder 5 from being stored. Thus, it is possible to control many keys 3 safely and surely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique of a key holder used in a key management device for managing a large number of keys.

[0002]

2. Description of the Related Art A key management device for managing a large number of keys is formed on a key holder by operating a solenoid of the key management device when a key holder for connecting the keys with a wire is inserted into a key holder holding portion of the key management device. The key holder is locked so that it cannot be pulled out by engaging with the notch. Further, when the key is removed, the data of the ID (identity) card for personal authentication is read by the card reader to confirm whether or not the lock can be released, and then the engagement by the solenoid is released. A key portion is formed on the key holder, and the key holder itself serves as a key. Therefore, when returning the key holder to the key management device, the key holder is returned to a predetermined position.

[0003]

In the above-described conventional key management device, for example, when the key user disconnects the wire connecting the key holder and the key and returns the key holder with the key removed, key management is performed. Unless a person is resident, there is an inconvenience that the responsibility cannot be determined because it is not possible to distinguish whether the key was returned from the time it was returned or was removed by someone while storing and managing the key. Also, since the return position of each key holder to the key management device is determined, there is a problem that it is troublesome to check the position where the key should be returned each time when the number of keys to be managed becomes large so as not to make a mistake. is there. Furthermore, since there is a limit to the number of key differences in the key portion formed on the key holder, the number of manageable keys is limited.

The present invention was devised in view of the above problems, and it is accurate when the key is removed and only the key holder is returned, or when the stored and managed key is removed from the key holder. It is used for key management devices that can be managed in a secure manner and can manage a large number of keys safely, and that the number of keys that can be managed is virtually unlimited and keys can be retrieved and returned quickly. The purpose is to provide a key chain.

[0005]

In order to solve the above problems, the present invention provides, in claim 1, a key holder (5) used in a key management device (1) for managing a plurality of keys (3). ) Is a key holder in which keys are connected by a wire (4), and the key holder is an ID holding an ID code.
Code holding means (5e) and I provided in the key management device
An ID code reading terminal (5b) for reading the ID code by contacting a contact portion (6b) connected to the D code reading means (10a, 10b) is provided, and the ID code reading terminal and the ID code holding The data wire (5f) connecting the means forms the wire connecting the key and the key holder. In this way, the data line for reading the ID code of the key holder is formed as a wire for connecting the key to the key holder. Therefore, if the wire is cut to remove the key from the key holder, the ID code can be read by the ID code reading means. It becomes impossible.

The key holder (5 ') used in the key management device (1) for managing a plurality of keys (3'), wherein the keys are connected by wires (4 ').
And the key holder holds an ID code I
An ID code reading terminal (5b) for reading the ID code by contacting the D code holding means (5e ') and the contact portion (6b) connected to the ID code reading means (10a, 10b) provided in the key management device. ′), A confirmation terminal (5d ′) for confirming the storage in the key holder holding part (6) provided in the key management device, and a ground connected to the confirmation terminal by connecting wires (5h ′, 5g ′). Terminal (5c ')
When the key holder is returned to the key holder holding portion, a current flows from the confirmation terminal to the ground terminal, and the key holder return detection means (6d, 1) provided in the key management device is provided.
0a, 10b) is configured to detect the LOW potential, and the confirmation terminal (5d ') and the ground terminal (5
The wire for connecting the key and the key holder is formed by the connecting wire (5h ', 5g') with c '). Thus, since the connecting wire connecting the confirmation terminal and the ground terminal is formed as the wire for connecting the key to the key holder, when the wire is cut to remove the key from the key holder, the confirmation terminal is connected to the ground terminal. No current flows through
The key holder return detection means detects the HI potential.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. First, the first embodiment will be described.
FIG. 1 shows a key storage main body 2 of a key management device 1 according to the present invention,
FIG. 3 is an external perspective view showing a key holder 5 connected to the keys 3 and housed in the key housing body 2. This key storage body 2
Is provided with a plurality of key holder holding portions 6 for storing and holding a key holder 5 in which the keys 3 are connected by connecting wires 4, an indicator lamp 7, and a card reader 8. Reference numeral 9 is an ID card.

Each of the key holder holding portions 6 is formed in the same structure and has an elongated holding hole 6a (see FIG. 2 described later) in the depth direction, and the elongated key holder 5 to which the key 3 is connected is held in the holding hole 6a. Insert and store. FIG. 1 shows a state in which the key holder 5 is to be inserted into the key holder holding portion 6 with the reference numeral 1, and the key holder 5 is inserted into the key holder holding portion 6 with reference numeral 13. It is shown in a stored state. Since all the key holders 5 are formed to have the same outer shape, when returning the key holders 5 to the key storing main body portion 2, they may be returned and stored in any key holder holding portion 6.

An indicator lamp is provided near the upper portion of each key holder holding portion 6 to inform that the stored key holder 5 is unlocked (this point will be described later) and the key holder 5 can be removed. 7 is attached. Further, each key holder holding portion 6 is numbered, and in this embodiment, 1 to 1 is used.
Up to 8, a total of 18 keys can be managed. The number of keys that can be stored and managed is not limited to 18 in this embodiment, and may be more or less than 18.

The card reader 8 attached to the upper part of the key storage main body 2 reads the data of the ID card 9 carried by a person who is permitted to use any key. When it is determined by this reading that the key holder 5 is a proper ID card, the lock that locks the key holder 5 irremovably is released, and the indicator lamp 7 of the corresponding key holder holding portion 6 lights up to turn on the key holder 5. Notify that removal is possible.

FIG. 2 is a partial cross-sectional view of the key storage main body 2 showing a state in which the key holder 5 is stored in the key holder holding portion 6. The key holder holding portions 6 are formed to have the same structure, and each of the key holder holding portions 6 has an elongated holding hole 6a into which the key holder 5 to be housed is inserted by about two thirds. This holding hole 6
At the innermost projecting end of a, the ID code terminal contact portion 6b and the ground terminal contact portion 6c are provided as contact portions for contacting each terminal (this point will be described in detail later) provided at the tip of the key holder 5. A housing confirmation terminal contact portion 6d for detecting that the key holder 5 is housed is provided (a connecting wire is not shown). Further, a solenoid 6e is arranged at the lower end of the holding hole 6a. This solenoid 6e
Is for locking the housed key holder 5 so that it cannot be removed. When the housing confirmation terminal contact portion 6d confirms that the key holder 5 is housed, the pin 6f moves upward and the locking groove of the key holder 5 is held. 5a, and the key holder 5 is locked so that it cannot be removed.

FIG. 3B is an external perspective view of the key holder 5, in which the key 3 is connected by a connecting wire 4. This key holder 5 has, at one end of the key holder 5, an ID code terminal 5b that comes into contact with the ID code terminal contact portion 6b (see FIG. 2) of the key holder holding portion 6 and a ground terminal 5c that also comes into contact with the earth terminal contact portion 6c. Similarly, there is provided a storage confirmation terminal 5d that contacts the storage confirmation terminal contact portion 6d. As described above, the key 3 is connected to the other end of the key holder 5 by the connecting wire 4.

FIG. 3A is a view for explaining an internal circuit extending from the terminals 5b, 5c, 5d of the key holder 5. Data line 5 extending from the ID code terminal 5b
When f is extended from the main body of the key holder 5 at the tip portion thereof to form the connecting wire 4 for connecting the key 3,
It returns to the inside of the key holder 5 and is connected to the IC 5e. Alternatively, the data line 5f returned to the main body of the key holder 5 is again extended to the outside from the main body of the key holder 5 and
The connecting wire 4 may be doubled by returning to the main body. The IC 5e has the same configuration as an IC used in a general IC card, in which an ID code unique to the key holder 5 is stored in a memory unit (not shown), and a CPU (not shown) operates by receiving power from the outside. , Sends the ID code stored in the memory section to the data line 5f. Therefore, when the connecting wire 4 is cut to remove the key 3 as described above, the ID code cannot be read, so that the cutting of the connecting wire 4 is detected.

The ground terminal 5c is connected to the IC 5e by a ground wire 5g. Also, the storage confirmation terminal 5d
Is connected to the ground wire 5g by a connection wire 5h. In this case, a predetermined voltage is applied to the storage confirmation terminal 5d, and when the key holder 5 is stored in the key holder holding portion 6, the storage confirmation terminal 5d is connected to the ground terminal 5c via the connecting wire 5h and the ground wire 5g. Current flows, storage confirmation terminal 5d
L in the storage confirmation terminal contact portion 6d (see FIG. 2) that contacts the
The OW potential is detected. The detection of the LOW potential confirms that the key holder 5 is stored in the key holder holding portion 6.

FIG. 4 is a diagram showing a control configuration of the key management device 1. First, inside the controller not shown,
A CPU 10a, a ROM 10b for storing a system control program and the like, a RAM 10c for storing the ID code data of each key holder 5 and recording the storage and removal of each key holder 5, a timer 10d for timing,
A device connection interface 10e and a communication interface 10f are provided. An LED 12 as a display unit, a ten-key pad 13, a buzzer 14, and a printer unit 15 are connected to the device connection interface 10e. Further, the card reader 8 of the key storage main body 2 shown in FIG. 1, the solenoids 6e (see FIG. 2) of the key holder holding portions 6 of number 1 to number 18, and each indicator lamp 7 are connected, and further, The ID code terminal contact portion 6b, the ground terminal contact portion 6c, and the storage confirmation terminal contact portion 6d are connected to each other.

The communication interface 10f shown in FIG.
Is an interface for transmitting and receiving data to and from a host computer (not shown). That is, the key management device 1 can be remotely managed by connecting to the host computer via a communication line. Further, by connecting a plurality of key management devices installed at different locations to the host computer via a communication line, it is possible to manage each key management device collectively.

The operation of the key management device 1 configured as above will be described. First, the operation of housing the key holder 5 will be described, and then the operation of unlocking the key holder 5 and removing the key holder 5 from the key holder holding portion 6 will be described. When returning the key holder 5, as described above,
The key holder 5 may be stored in any vacant key holder holding portion 6, but in the following description, the key holder 5 will be stored in the key holder holding portion 6 of the key storing main body portion 2 shown in FIG. explain. The control of each part of the device is performed by the CPU 10a based on the system program stored in the ROM 10b of the controller 10 (see FIG. 4).

First, the key holder 5 is inserted into the key holder holding portion 6 (see FIG. 1) having the number 1 and is stored. When the key holder 5 is housed in the key holder holding portion 6, each of the ID code terminal 5b [see FIG. 3 (b)], the ground terminal 5c, and the storage confirmation terminal 5d becomes the ID code terminal contact portion 6b ( 2), the ground terminal contact portion 6c, and the storage confirmation terminal contact portion 6d, respectively. A predetermined voltage is applied to the housing confirmation terminal contact portion 6d, and the housing confirmation terminal 5d of the key holder 5 that contacts the housing confirmation terminal contact portion 6d is connected to the connecting wire 5h [Fig.
(See (a)] and a current flows through the ground wire 5g to the ground terminal 5c, and further a current flows through the ground terminal contact portion 6c that contacts the ground terminal 5c, and the storage confirmation terminal contact portion 6d becomes LOW potential. . This LOW potential continues while the key holder 5 is stored in the key holder holding portion 6.

The CPU 10a (see FIG. 4) determines that the key holder 5 is stored when the storage confirmation terminal contact portion 6d becomes LOW potential, and sends an operation signal to the solenoid 6e (see FIGS. 2 and 4) of the key holder holding portion 6. To send. As a result, the pin 6f of the solenoid 6e rises and fits into the locking groove 5a of the key holder 5. By this fitting, the key holder 5 is locked in the key holder holding portion 6 so that it cannot be pulled out. Before and after, the CPU 10a reads the ID code of the stored key holder 5. That is, the data line 5f is energized from the ID code terminal contact portion 6b, and the IC 5e
Is activated and the ID code of the key holder 5 is changed to the data line 5
send to f. When the CPU 10a receives this ID code via the ID code terminal contact portion 6b, the CPU 10a receives the number (number 1 in this case) of the key holder holding portion 6 and the I
The D code and the time returned by the timer 10d (see FIG. 4) are recorded in the RAM 10c.

The CPU 10a is a key holder 5 that is stored.
If the ID code of No. 1 could not be read, it is judged that the key holder 5 in which the connecting wire 4 was cut and the key 3 was removed was returned, and the abnormality occurrence was recorded in the RAM 19c and the buzzer 14 (see FIG. 4) ) Is performed. When the ID code of the housed key holder 5 is normally read, the ID code of the key holder 5 is read every time a predetermined time elapses by the timer 10d. This reading of the ID code is repeatedly performed while the storage confirmation terminal contact portion 6d maintains the LOW potential, that is, while the key holder 5 is stored. During this period, when the ID code cannot be read or the HI potential is detected, it is determined whether or not the lock release operation of the key holder 5 described later is performed, and the lock release operation is performed. If the key holder 5 is removed from the key holder holding portion 6 by a normal operation, the control step ends. When the lock release operation is not performed, the abnormality occurrence is recorded in the RAM 10c and the abnormality processing for sounding the buzzer 14 is performed.

Next, unlocking of the key holder 5 housed in the key holder holding portion 6 will be described. For example, when the key holder 5 is unlocked and withdrawn from the key holder holding portion 6 designated by reference numeral 13 shown in FIG.
The ID card 9 held by an authorized user is inserted into the card reader 8 (see FIG. 1) to read the ID code. When the ID card is permitted to use a plurality of keys, the desired key number is designated by inputting the ten keys 13 (see FIG. 4). When the CPU 10a collates the ID code stored in the RAM 10c and determines that the lock can be released, the CPU 10a sends a lock release signal to the key holder holding portion 6 (the number 13 in this case) in which the key holder 5 is housed. With this signal, the solenoid 6e (see FIG. 2) of the key holder holding portion 6 of number 13 is activated, and the pin 6
When f is lowered, the engagement with the locking groove 5a of the key holder 5 is released, and the lock is released.

At the same time, the CPU 10a lights the indicator lamp 7 of the unlocked key holder holding portion 6 to notify that the key holder 5 can be removed. Also, when this unlock operation is performed,
The ID code of the key holder and the time when the release operation is performed are recorded in the RAM 10c. As described above, when the key 3 is returned, the key holder 5 may be returned to any vacant key holder holding portion 6, and when the key holder 5 is pulled out by performing the unlock operation, the corresponding key holder 5 is returned. Since the indicator lamp 7 of the holding portion 6 is turned on to notify the position of the key holder holding portion 6 to be removed, the keys can be quickly stored and taken out. The contents recorded in the RAM 10c are
The printer unit 15 can print out by a predetermined operation using the ten keys 13 (see FIG. 4).

Next, a second embodiment will be described. FIG. 3C is a diagram for explaining the internal circuit of the key holder 5'in the second embodiment. In the first embodiment, as shown in FIG. 3A, the connecting wire 4 connecting the keys 3 is a data line 5f for reading an ID code.
In the second embodiment, the connecting wire 5h 'for connecting the storage confirmation terminal 5d' to the ground wire 5g 'is used as a part of the connecting wire 4'. Thus, when the connecting wire 4'is cut to remove the key 3 ', the storage confirmation terminal contact portion 6d (see FIG. 2) of the key holder holding portion 6 passes through the ground wire 5g' and the ground terminal 5c '. Since no current flows through the earth terminal contact portion 6c, the storage confirmation terminal contact portion 6d becomes HI potential, and the disconnection of the connecting wire 4'is detected. Other configurations are the same as those in the first embodiment.

If the connecting wire 4'is cut during the return and storage of the key holder 5 ', the storage confirmation terminal contact portion 6d remains at the HI voltage, so that the return of the key holder 5'is recognized. Therefore, since the return is not recorded, the user of the key 3'can not use the key 3 '.
Will continue to be liable for the return.

In the first and second embodiments, each key holder 5, 5'is formed in the same outer shape,
It can be returned to the key holder holding part 6 at any position. However, as in the conventional case, the key parts are provided on the key holders 5 and 5 ',
It may be possible to always return the key holder holding unit 6 at the specified position only, or, programmatically, the specific key holders 5 and 5 ′ are set to accept the return only at the preset key holder holding unit 6. You may.
When the number of managed keys 3, 3'becomes large, the card reader 8 for reading the data of the ID card 9
A plurality of (see FIG. 1) may be provided.

[0026]

As described above, according to the present invention, I
A connecting wire for connecting the key to the key holder is formed by the data line of the D code, or a key storage confirmation terminal and a ground terminal formed on the key holder for detecting the key storage in the key holder holding portion. With the configuration in which the connection wire of is formed as the connecting wire, it is possible to accurately grasp the case where the key is removed and only the key holder is returned, or the case where the stored and managed key is removed from the key holder. Therefore, it is possible to provide a key management device capable of safely managing a large number of keys. Further, the key management device can promptly take out and return the key. Furthermore, the so-called key difference of the key chain is the ID
It is realized by using different codes, and the outer shape of the key holder can be formed the same, so that the key difference between the key holders can be set virtually infinite and the manufacturing cost of the key holder can be reduced. .

[Brief description of drawings]

FIG. 1 is a key storage main body 2 of a key management device 1 according to the present invention.
FIG. 3 is an external perspective view showing key holders 5 and 5 ′ which are housed in the key housing body 2 by connecting the keys 3 and 3 ′.

FIG. 2 is a partial cross-sectional view of the key storage main body portion 2 showing a state where the key holders 5, 5'are stored in the key holder holding portion 6.

FIG. 3 (a) is a diagram illustrating an internal circuit of a key holder 5 extending from each terminal 5b, 5c, 5d in the first embodiment, and FIG. 3 (b) is a key 3,3. ′ Is an external perspective view of the key holders 5 and 5 ′ connected by the connecting wires 4 and 4 ′, and FIG. 3C is a view for explaining the second embodiment. Each terminal 5b ′, It is a figure explaining the internal circuit of the key holder 5'extending from 5c 'and 5d'.

FIG. 4 is a diagram showing a control configuration of the key management device 1.

[Explanation of symbols]

1..key management device 2..key storage main unit 10. controller 3,3 ', key 10a, CPU 4,4', connecting wire 10c, RAM 5,5 ', key holder 5a, 5a', locking groove 5b , 5b ', ID code terminal 5c, 5c', ground terminal 5d, 5d ', storage confirmation terminal 5e, 5e', IC 5f, 5f ', data wire 5g, 5g', ground wire 6, key holder holding portion 6b, ID code terminal contact part 6c, ground terminal contact part 6d, storage confirmation terminal contact part 9 ... ID card

Claims (2)

[Claims] 1. A key holder used in a key management device for managing a plurality of keys, the key holder having keys connected by wires, wherein the key holder has an ID code holding means for holding an ID code, An ID code reading terminal for reading the ID code by contacting a contact portion connected to the ID code reading means provided in the key management device is provided, and the ID code reading terminal and the ID code holding means are connected. A key holder used in a key management device, characterized in that the wire for connecting the key and the key holder is formed by a data line. 2. A key holder used in a key management device for managing a plurality of keys, wherein the keys are connected by wires, the key holder comprising an ID code holding means for holding an ID code, and the key. An ID code reading terminal for reading the ID code by contacting a contact portion connected to an ID code reading means provided in the management device; and a confirmation terminal for confirming storage in a key holder holding unit provided in the key management device. A key holder return detection means provided with a key management device having a ground terminal connected to the confirmation terminal with a connection wire, and when the key holder is returned to the key holder holding portion, a current flows from the confirmation terminal to the ground terminal. Is configured to detect the LOW electric potential, and the wire connecting the key and the key holder is connected by the connecting wire between the confirmation terminal and the ground terminal. Key holder used in the key management apparatus characterized by the formation of the Ya.