JPH10121799A - Key-keeping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a posterior attachment at a relatively low cost and provide an excellent antitheft function and improve the device so as to be easily managed. SOLUTION: This key-keeping device is provided with a container 4 of keys 3, and a locking means 7 prohibiting taking-out of the keys 3 from the container 4 and it is installed near a building or on a wall face to keep the keys unlocking the entrance lock of the building. In this case, the device is provided with a receiving means of code signals of transmission waves in the air and a collation means of the code signals to discriminate correctness thereof. When the code signal is discriminated as a correct signal, the locking means is unlocked. Since the device can be used by only a leading-in electric source cable (when a built-in battery is used, the cable is not required), it can be easily adapted afterward even to an existing building. And further, since the locking means is released by wireless code signals, it become substantially impossible to make a copy, differently from a mechanical key. And even when a transmitter for code signals is lost, it can be uneventfully treated by changing the collation code.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key storage device for storing a key for unlocking a lock at an entrance of a building, and more particularly to a key storage device installed near or on a wall surface of the building. is there.

[0002]

2. Description of the Related Art When a maintenance company or a security and security company is entrusted with management or security of a building, it is necessary to entrust a key to a building entrance, and especially to manage and manage a plurality of buildings.
If one person is in charge of security, the person must carry the keys to those buildings together at all times. However, since mechanical keys are relatively easy to duplicate, extremely strict management is required to prevent misuse, and considering the risk of loss, it is not desirable for personnel to carry a large number of keys .

[0003]

In order to cope with such inconveniences, for example, an electronic lock which is unlocked by a specific code signal is provided in a passage, and a magnetic card or the like which stores a code for unlocking the electronic lock is provided. Although it is conceivable that a person in charge carries an IC card, it is difficult to apply this method to an existing building because a security system must be established when the building is constructed.

[0004] The present invention has been devised to solve such problems, and its main object is to make it possible to retrofit at a relatively low cost, and to have excellent antitheft properties and easy management. It is an object of the present invention to provide an improved key storage device.

[0005]

In order to achieve the above object, according to the present invention, a key storage section for storing a key for unlocking a lock at an entrance of a building is provided. A lock unit for preventing removal of a key from a unit, a key storage device installed near the building or on a wall surface, wherein the code storage unit receives a code signal by a spatial transmission wave, and the code signal verification unit A key storage device, wherein the validity of the received code signal is determined by the collating means, and the lock means is released when the code is determined to be valid. It was provided.

[0006] According to this, since it can be dealt with only by drawing in the power supply line (there is no need if a battery is built in).
It can be easily retrofitted to existing buildings, and the lock means is released by the code signal of the radio signal, so that it is virtually impossible to duplicate like a mechanical key,
Even if the transmitter of the code signal is lost, it can be dealt with by changing the verification code.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 shows a key storage constructed according to the present invention. The key storage device 1 is formed of a steel plate, and a storage portion 4 of a key 3 covered with a door 2 that can be opened and closed is provided in a substantially half portion of the front surface, and a storage portion 4 in the other half. A storage unit 6 such as a code signal receiving antenna 5 and a code signal collation determination circuit is provided. The door 2 of the key storage unit 4 is provided with a lock mechanism 7 driven by, for example, a solenoid or a motor.

The key storage 1 receives a code signal transmitted from the outside by a spatial transmission wave, verifies the code with a registered code by a verification / determination circuit, and the transmitted code is a regular code. Is determined, the locking means 7
An unlock command is issued to the user. In addition, according to the present invention, since no opening is required on the outer surface of the housing of the key storage device 1, it is easy to adopt a drip-proof structure, and it is possible to configure the key storage device 1 so that it can be installed under an eaves outdoors. is there.

FIG. 2 shows an example of a code signal transmitter.
This consists of a non-contact type IC chip module 8 in which a unique code is recorded embedded in a plastic card 9, and a coil 10 attached to the IC chip module 8 approaches a magnetic field generated by the antenna 5 of the key storage 1. The transmission of the code signal and the writing of the information transmitted from the key storage device can be performed as necessary by the current excited by the electromagnetic induction effect when this is performed.

When the card 9 is brought close to the antenna storage section 4 of the key storage device 1 at the time of patrol or dispatch, a unique code is transmitted from the IC chip 8. Collation is performed by a collation discrimination circuit. If the results match, the locking means 7 of the door 2 of the key storage unit 4 is released, so that the key 3 can be taken out from the key storage unit 4 and the entrance of the building can be unlocked.

The hook 11 for hooking the key 2 provided in the key storage unit 4 is linked with the security system of the building to detect removal of the key 3 and release the security state.
The security state can be set by detecting the return of the key 3.

If a recording device is provided on the key storage device 1 side and the operation history is recorded in the recording device, the time of unlocking and the person who unlocked can be recorded. Management is possible. In this case, the reading, writing, and erasing of data in the recording device provided in the key storage 1
A known system such as a configuration in which a dedicated reader / writer is connected, a configuration in which each uses a dedicated card, or a configuration in which centralized management is performed centrally by online connection via a telephone line can be appropriately applied.

As described above, if an element that operates with a current excited by the electromagnetic induction action is used as the transmitter, it is not necessary to incorporate a battery, so that it is possible to further reduce the size and to outsource management and security. It can also be used as an employee ID card of the company. In this way, the employee ID
If it is a C card and the code for unlocking the key storage device is recorded on this card, it is possible to arbitrarily grant the authority of the key storage device unlocking to the entrusted management and security company employees. Can be. It is needless to say that the transmitter is not limited to the card shape but may take an appropriate shape such as a badge, a key holder, or a pendant such as an identification tag.

Further, by separately preparing a conversion / amplifier equipped with a battery and converting the wavelength and increasing the transmission output in combination with the conversion / amplifier, remote transmission / reception can be performed without changing the card itself. It is also possible, and of course, it is also possible to adopt a form with a built-in battery. In addition, if a high-performance IC chip module 8 is adopted, it is easy to record the operation history on the card 9 and to provide various types of unauthorized use protection.
Further improvement in reliability can be contemplated.

FIG. 3 shows another embodiment of the present invention. In this embodiment, the key 21 is housed in a special case 22 and a slit 24 formed on the bottom of the key storage device 23.
From inside the key storage device 23. A notch 25 is formed at an appropriate position of the case 22, and a lock mechanism 27 having a latch 26 engaged with the notch 25 is formed.
Is built in the key storage device 23.

According to this, normally, the latch 26 is engaged with the notch 25 of the case 22 inserted into the key storage device 23 from the slit 24, and the state where the case 22 is held in the key storage device 23 is maintained. You. When the transmitter (card) approaches the antenna unit 28 in the same manner as described above, the latch 26 is released by the operation of the lock mechanism 27 according to the result of the code collation determination. Then, the case 22 falls through the slit 24, so that the key 21 can be taken out of the case 22 and the entrance of the building can be unlocked.

In this type, since the entire key storage device 23 can be substantially shielded, it is even more difficult to remove the key 21 by unauthorized means.

[0019]

As described above, according to the present invention, the lock release function of the non-contact type transmitter is added to the key storage device, so that it can be retrofitted even in an existing building, so that it is relatively inexpensive. In addition, the advantages of the electronic lock can be enjoyed, and the burglarproof property can be enhanced, and the management can be facilitated. Moreover, as described above, it is possible to open the key storage devices installed in all the buildings with a common card only by registering the individual code of the card held by the person in charge for each key storage device. This eliminates the need to carry a key for each building during patrols and dispatches. Therefore, according to this, for example, when an abnormality occurs in a certain building, even if a person having a key to open the key storage box of the building is located far away, other security guards patrol around the vicinity. Can immediately rush to retrieve the key, so that prompt action can be taken. Further, even if one person loses the card, all that is required is to change the code, so there is no inconvenience that if the key is lost like a mechanical lock, the locks of all boxes must be replaced.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a key storage device according to the present invention.

FIG. 2 is a plan view of a card as a code transmitter.

FIG. 3 is a front view (A) and a bottom view (B) of another embodiment of the key storage device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Key storage 2 Door 3 Key 4 Storage part 5 Antenna 6 Storage part 7 Lock means 8 IC chip 9 Card 10 Coil 11 Hook 21 Key 22 Case 23 Key storage 24 Slit 25 Notch 26 Latch 27 Lock mechanism 28 Antenna part

Claims (1)

[Claims] 1. A key storage unit for storing a key for unlocking a lock at an entrance of a building, and a lock unit for prohibiting removal of the key from the storage unit. And a key storage device installed on a wall surface, comprising: a code signal receiving unit using a spatial transmission wave; and a code signal collating unit. The collating unit determines whether the received code signal is correct or not,
A key storage device wherein the lock means is released when the code is determined to be legitimate.