JPH09245257A - Register - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a register which is capable of performing the settlement of accounts by only a card and is provided with high safety, without using cash. SOLUTION: This register 1 is composed of an individual verifying device performing the confirmation of a true operator, a transaction processor starting by the confirmation of the true operator by the individual verifying device and performing the settelement of accounts by a card, a card verifying device performing a user card confirmation, a controller verifying device performing the confirmation of a controller, a key opening/closing device performing the opening/closing of a cash storage part key K by using the controller verifying device, a receipt issuing device 6 printing out a cash receipts and expenses calculation result and a body 10 storing these devices. At this stage, a cash receipts and expenses, etc., are performed by the operation of the transaction processor, transaction processings can be performed and further, the settlement of accounts by a user card can be made to be performed. By this constitution, the possibility of the theft and the robbery of cash can be eliminated, the trouble at the time of receiving and delivering cash between a clerk and a customer can be eliminated and an objective, useful and safe register can be realized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cash register, and more particularly to a cash register which has high security and can be settled with a card without using cash.

[0002]

2. Description of the Related Art Conventionally, in a store such as a superstore or a convenience store that sells products, a register has been used to withdraw and withdraw cash.

However, in such a conventional register, cash is directly withdrawn and withdrawn each time a product is sold by withdrawing and withdrawing a cash drawer.
Not only is it complicated, but there is also the problem that cash may be stolen or robbed.

Further, there is a problem in that, when cash is exchanged between the clerk and the customer, troubles are likely to occur due to mistakes in the type of cash voucher.

Therefore, the applicant of the present invention has proposed a register for improving the safety in order to solve such conventional problems (Japanese Patent Application No. 8-).

[0006] After that, the applicant of the present patent has further researched and developed a register with high security that can be settled only by a card.

[0007]

SUMMARY OF THE INVENTION The main object of the present invention is to:
By reducing the risk of theft and robbing of cash as much as possible, by making it a register that made it difficult for troubles due to mistakes such as the type of cash voucher when transferring cash between a clerk and a customer, It is to provide a useful register with high safety by solving the conventional disadvantages.

[0008]

According to the present invention, such a purpose is to use a card such as a prepaid card or a credit card in a register for calculating cash receipts and payments without directly entering or leaving cash. And make a payment,
It is achieved by providing a register characterized by the following.

[0009]

As described above, according to the register of the present invention, the withdrawal of a drawer containing cash is unnecessary, and the labor is saved.
Easy and easy operation.

Further, since the cashier can perform automatic calculation without making a cash account by a cashier, such as a cashier, it is possible to eliminate troubles when cash is transferred between the cashier and the customer.

Furthermore, by operating the transaction processing device by using the personal verification device, it is possible to make cash payments and the like and to make payment using the user card, whereby the cash is stolen or robbed. I can eliminate the fear,
It is possible to realize the desired useful and safe register.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a register having enhanced safety.

The present invention will now be described in detail with respect to specific embodiments with reference to the accompanying drawings.

1 and 2 show a first embodiment of the present invention.

The register 1 of the present embodiment includes a personal verification device 2 for confirming the authenticity operator, and a transaction processing device 3 for starting by confirmation of the authenticity operator by the personal verification device 2 and for making a payment by a card or cash. , A card verification device 31 for checking a user card, a manager verification device 4 for checking a manager such as a store manager, and a key opening / closing for opening / closing the key K of the cash storage unit by using the manager verification device 4. It is composed of a device 5, a receipt issuing device 6 that prints out the results of the cash accounting, and a housing 10 that houses these devices. By operating the transaction processing device, the calculation is performed and the money is paid. It is possible to carry out transaction processing such as withdrawal and withdrawal of cash, as well as withdrawal and withdrawal of cash. It is what can be done the settlement using the Zakado.

The personal verification device 2 includes a card carrier 7 for carrying an operator card, a card verifier 8 for verifying whether the operator card is a genuine operator card, and a card reader 9 for reading the data of the operator card. The card carrier 7, the card verifier 8, and the card reader 9 are provided.
Is connected to the central processing unit 11 described later via the input / output interface 15, and whether or not the operator is authentic by using an operator card which is a storage medium in which data unique to the operator is recorded To confirm.

At this time, the authenticity of the operator in the personal verification device 2 is confirmed by comparing the read data of the storage medium with the data keyed in by the operator.

The transaction processing device 3 includes a central processing unit (CPU) 11 for performing arithmetic processing, a ten-key 12 for performing key operations such as four arithmetic operations, and a display device 13 for displaying the arithmetic result. , 14 and the numeric keypad 12
And the display devices 13 and 14 are the input / output interface 1
It is connected to the central processing unit 11 via 5, and starts by confirming that the operator is authentic,
Calculation can be performed by inputting with the numeric keypad 12, and cash can be received (receipt / receipt) and withdrawal (change and withdrawal) according to the calculation result, and the calculation result can be used for prepaid cards, credit cards, etc. Use the user card to make payments by card without directly entering or leaving cash.

The central processing unit (CPU) 11 is provided with a memory M which is a storage medium in which data is recorded, and performs arithmetic processing, data collation and the like.

Further, the transaction processing device 3 scans a code attached to a product or the like to read the code information, converts the read code information into a digital signal, and notifies the central processing device 11 of the digital signal. The code reading / discriminating device 16 is provided for performing work in place of operating the numeric keypad 12.

On the other hand, the administrator verification device 4 includes an administrator card carrier 17 for carrying an administrator card and an administrator card verifier 18 for verifying whether or not the card is a genuine one.
And an administrator card reader 19 for reading the data of the administrator card. The administrator card carrier 17, the administrator card verifier 18, and the administrator card reader 19 are connected to each other via the input / output interface 15. It is confirmed whether or not the manager is authentic by using the manager card which is a storage medium connected to the central processing unit 11 and in which data unique to the manager is recorded.

At this time, the authenticity of the administrator in the administrator verification device 4 is confirmed by collating the read data of the storage medium with the data keyed in by the administrator.

Further, the key opening / closing device 5 can open / close the key K of the cash storing unit only for a specific set time such as a fixed time before opening or a fixed time after closing, and the key opening / closing device 5 can be centrally operated via the input / output interface 15. A timer 20 is provided which is connected to the processing device 11 and is operable only for a specific time.

Further, the receipt issuing device 6 is composed of a paper feeder 21 for feeding the receipt paper and a printer 22 for printing the result of the cash accounting on the paper, and the central processing unit 1 through the input / output interface 15.
The receipt R is issued by printing the result of the cash accounting calculation on the receipt paper by the printer 22.

Further, the casing 10 is provided with an operator card port 23 for inserting and returning an operator card continuously to the card carrier 7.

Further, in the cash input / output device, a banknote transporter 25 for continuously inserting / withdrawing banknotes into / from the banknote slot 24 provided in the housing 10, and a coin slot 26 provided in the housing 10.
Coin carrier 27 for continuously moving coins in and out of
And are provided.

Further, the housing 10 is provided with an administrator card port 28 for inserting and returning the administrator card in succession to the administrator card carrier 17.

The card verification device 31 includes a card carrier 32 for carrying a user card, a card verifier 33 for verifying whether the user card is a genuine user card, and a card reader 34 for reading the data of the user card. A storage medium in which the card carrier 32, the card verifier 33, and the card reader 34 are connected to the central processing unit 11 described later via the input / output interface 15 and user-specific data is recorded. The user card is used to check whether the user is authentic or not.

At this time, the authentic user is confirmed in the card verification device 31 by collating the read data of the storage medium with the data keyed by the operator or by collating online.

Further, the housing 10 is provided with a user card port 35 for continuously inserting and returning the user card in the card carrier 32.

Next, a method of using the register according to the first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 show a first embodiment of the present invention.

First, an administrator, for example, a store manager, sets the timer 20 of the key opening / closing device 5 so that the key K of the cash storage unit can be opened / closed only for a certain time before opening or for a certain time after closing.

Next, at the time when the timer 20 is set,
The manager, for example, the store manager, uses the manager card for the manager card 2
8 and inserts into the administrator card carrier 1 of the administrator verification device 4
Carry the administrator card at 7, and enter the PIN on the numeric keypad 12
The administrator card reader 19 reads the data of the administrator card, and the administrator card verifier 18 verifies whether the card is a genuine administrator card. Since the key K of the cash storage unit can be opened by confirmation, the key K of the cash storage unit is locked after cash is taken in and out.

Subsequently, a store clerk who is an operator, for example, a cashier, inserts the operator card into the operator card slot 23.
, The operator card is carried by the card carrier 7 of the personal verification device 2, the personal identification number is entered by the ten-key pad 12, the data of the operator card is read by the card reader 9, and the card verifier 8 is used for authenticity. The transaction processing device 3 is started by verifying whether the operator card is a true operator card or not and confirming that the operator card is a genuine operator.

Further, the operation of the numeric keypad 12 of the transaction processing device 3 is performed to perform the accounting calculation, the results of the accounting calculation are displayed on the display devices 13 and 14, and the bill port 24 and the coin port are displayed according to the calculation result. With 26, cash is accepted and withdrawn.

At this time, in the above embodiment, since the code reading / discriminating device 16 is provided, the code reading / discriminating device 16 scans the code attached to the product or the like to read the code information. By converting the read code information into a digital signal and notifying it to the central processing unit 11, the work instead of the operation of the numeric keypad 12 is performed, the calculation result is displayed on the display devices 13 and 14, and the bill mouth is calculated according to the calculation result. With 24 and the coin slot 26, cash can be accepted and withdrawn.

At this time, in the present embodiment, the receipt and withdrawal of cash are performed separately using the bill slot 24 for coins and the coin slot 26 for coins.

Further, the result of the cash accounting calculation is printed by the printer 22 on the receipt paper sent by the paper feeder 21 of the receipt issuing device 6, thereby issuing the receipt R on which the result of the cash accounting is printed.

As a result, one transaction processing is completed, so that the user returns to the place of accounting calculation and prepares for the next transaction processing (processing for the customer).

In this manner, the register 1 receives and withdraws cash through the banknote slot 24 and the coin slot 26 by operating the transaction processing device 3, thereby achieving the desired cash accounting. It is possible to process transactions that involve cash in and out.

That is, unlike the conventional case, it is not necessary to pay out and accept cash and to count the cash each time a product is sold, withdrawing and withdrawing a cash drawer, which saves labor and is easy to operate. Not only will this be easier, but there will be no risk of mistakes regarding the type of cash voucher.

Therefore, by operating the transaction processing device 3, it is not necessary to withdraw and withdraw a cash-containing drawer when cash is withdrawn or cashed as in the conventional case, so that the cash may be stolen or robbed. It can be reduced as much as possible.

Further, since the calculation can be automatically performed by operating the transaction processing device 3, it is possible to avoid troubles such as the kind of cash voucher at the time of cash delivery between the clerk and the customer due to an error or the like. It can be reduced as much as possible.

On the other hand, in the above embodiment, since the card verification device 31 for confirming the user card and the transaction processing device 3 for performing the payment by the card are provided, the cash payment is performed as described above. , You can pay by card.

That is, as well shown in FIG. 6, first, a store clerk, for example, a cashier deposits the user card of the customer who is the user of the card, inserts the user card into the user card slot 35, and Verification device 3
The user card is transported by the card carrier 32 of No. 1 and the data of the user card is read by the card reader 34,
The card verifier 33 verifies whether the user card is a genuine user card by collating with the data keyed in by the operator or online, and confirms that the user is the owner of the genuine user card. .

Subsequently, after confirming that the user is the owner of the authentic user card, the transaction processing device 3 is activated.

Next, an authentic operator operates the numeric keypad 12 of the transaction processing device 3 to perform the accounting calculation, display the results of the accounting calculation on the display devices 13 and 14, and according to the calculation result. Use a user card such as a prepaid card or a credit card to make payments with the card without directly entering or leaving cash.

At this time, in the above embodiment, since the code reading / discriminating device 16 is provided, the code reading / discriminating device 16 scans the code attached to the product or the like and reads the code information. By converting the read code information into a digital signal and notifying it to the central processing unit 11, the work instead of the operation of the numeric keypad 12 is performed, the calculation result is displayed on the display devices 13 and 14, and the user card is calculated according to the calculation result. Settlement is performed without directly entering and leaving cash using a user card such as a prepaid card or a credit card.

Next, the receipt paper sent by the paper feeder 21 of the receipt issuing device 6 is printed by the printer 22 on the receipt paper.
By printing the cash accounting calculation result, a receipt R with the cash accounting calculation result printed is issued, and the receipt R is given to the customer.

Further, upon completion of the settlement, the user card is pulled out from the user card slot 35, and the user card is returned to the customer.

As a result, one transaction processing is completed, so that the operator returns to the place of accounting calculation and prepares for the next transaction processing (processing for the customer).

Next, a second embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4 and 5 show a second embodiment of the present invention.

The register 1 of the present embodiment is a personal verification device 2 for confirming the authenticity operator, a transaction processing device 3 for starting by the confirmation of the authenticity operator by the personal verification device 2 and a settlement by a card, and a user. A card verification device 31 for checking a card, a manager verification device 4 for checking a manager such as a store manager, a receipt issuing device 6 for printing out a result of a cash accounting, and these devices are housed. It is composed of the housing 10 and performs calculations by operating the transaction processing device to make cash payments and the like, and makes payments using a card such as a prepaid card or a credit card without cash payment. Is to do.

Further, the personal verification device 2 is provided with a card carrier 7, a card verifier 8 and a card reader 9 as in the case of the first embodiment, and central processing is performed via an input / output interface 15. A timer 36 is provided which is connected to the device 11 and can be operated only for a specific time.

On the other hand, the administrator verification device 4 includes the administrator card carrier 17 and the administrator card verification device 1 as in the above embodiment.
8 and an administrator card reader 19 are used to confirm whether or not the administrator is authentic by using the administrator card, and to activate the personal verification device 2 by confirmation of the authentic administrator. It is possible.

Further, the transaction processing device 3 is provided with the ten-key 12 and the display devices 13 and 14 similarly to the above-mentioned embodiment, and is started by confirming the authenticity of the operator, and the ten-key 12 is operated. Cards can be calculated by inputting by operation, cash payments, etc., and without making cash payments, and without directly making cash payments using user cards such as prepaid cards and credit cards according to calculation results The payment is made by.

Next, a method of using the register according to the second embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4 to 6 show a second embodiment of the present invention.

First, an administrator, for example a store manager, sets the timer 36 of the personal verification device 2 so that the personal verification device 2 is operated only for a certain period of time from the opening of the store to the closing of the store.

Next, at the time when the timer 36 is set,
A store clerk who is an operator, for example, a cashier, inserts an operator card into the operator card slot 23, carries the operator card with the card carrier 7 of the personal verification device 2, inputs the personal identification number with the ten-key pad 12, and reads the card reader. The data of the operator card is read at 9, and the card verification machine 8
To verify whether it is a genuine operator card,
The transaction processing device 3 is started by confirming that it is a genuine operator.

Subsequently, a store clerk, for example, a cashier, deposits the user card of the customer who is the user of the card, inserts the user card into the user card slot 35, and uses the card carrier 32 of the card verification device 31 to store the user card. The card reader 34 reads the data of the user card with the card reader 34 and collates it with the data keyed in by the operator or collates it online to determine whether the card verifier 33 is an authentic user card. Validate and verify that you are the owner of an authentic user card.

Next, after confirming that the user is the owner of the authentic user card, the transaction processing device 3 is activated.

Further, by performing a key operation on the ten key 12 of the transaction processing device 3, the accounting calculation is performed, the results of the accounting calculation are displayed on the display devices 13 and 14, and the cash accounting is performed according to the calculation result. According to the result of the calculation, a user card such as a prepaid card or a credit card is used to make a payment by using the card without directly entering or leaving cash.

At this time, in the above embodiment, since the code reading / discriminating device 16 is provided, the code reading / discriminating device 16 scans the code attached to the product or the like to read the code information. By converting the read code information into a digital signal and notifying it to the central processing unit 11, the work instead of the operation of the numeric keypad 12 is performed, the calculation result is displayed on the display devices 13 and 14, and the calculation result is displayed. Use a user card such as a prepaid card or a credit card to make payments with the card without directly entering or leaving cash.

Next, the receipt paper sent out by the paper feeder 21 of the receipt issuing device 6 is printed by the printer 22 on the receipt paper.
By printing the results of the cash accounting,
A receipt R that prints the result of the cash accounting is issued.

Further, upon completion of the settlement, the user card is pulled out from the user card slot 35, and the user card is returned to the customer.

As a result, one transaction processing is completed, so that the operator returns to the place of accounting calculation and prepares for the next transaction processing (processing for the customer).

In this way, the register 1 of this embodiment is
By operating the transaction processing device 3, it is possible to perform transaction processing by using a user card such as a prepaid card or a credit card to make a payment using a card without directly making a cash entry / exit.

That is, unlike the prior art, it is not necessary to withdraw and accept cash and to count the cash by inserting and withdrawing a cash drawer each time a product is sold, which saves labor and facilitates operation. Not only is it easy, but there is no risk of trouble with the type of cash voucher.

Therefore, by operating the transaction processing device 3, it is no longer necessary to withdraw and withdraw a cash-containing drawer when cash is withdrawn and withdrawn as in the prior art, so that the risk of theft or robbing of cash is eliminated. You can do it.

Further, since the calculation can be automatically performed by operating the transaction processing device 3, it is possible to avoid troubles such as the kind of cash voucher at the time of delivery of cash between the clerk and the customer due to an error. It can be resolved.

Incidentally, the register of the present invention is not limited to the above-mentioned embodiment, and many modifications can be considered.

That is, the register of the present invention is not limited to the shape of the above-mentioned embodiment, but may have an appropriate shape.

For example, the register of the present invention includes the case 10, the numeric keypad 12, the bill slot 24, and the coin slot 2 of the above-described embodiment.
The shape is not limited to 6 and can be an appropriate shape depending on the purpose of use.

In the register of the present invention, the bill slot 24 and the coin slot 26 of the above embodiment are separately provided.
Needless to say, it can be processed in place.

Further, it is needless to say that the register of the present invention is not limited to that of the above-mentioned embodiment and can have a structure different from that of the above-mentioned embodiment.

For example, the register of the present invention is not limited to the structure of the bill slot 24 and the coin slot 26 of the above-mentioned embodiment, and is a cash slot capable of simultaneously receiving and withdrawing bills and coins. It can be configured.

Further, the register of the present invention can be replaced by another one such as the code reading / discriminating device 16 in place of the numeric keypad 12 of the above embodiment.

Further, the register of the present invention is not limited to the one in which the entire user card such as the prepaid card or the credit card is inserted like the user card slot 35 of the above-mentioned embodiment, but a part of the user card. Needless to say, it may be one in which the card is inserted or a part of the user card is sandwiched.

As described above, the register of the present invention is not limited to that of the above-mentioned embodiment, but may be changed according to the purpose of use.
By adopting a shape and a function different from those of the above-mentioned embodiment, it can be adapted to the purpose of use and a useful register can be realized.

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

As described above, according to the register of the above-described embodiment, the user card such as the prepaid card or the credit card is used together with the operator card and the manager card to verify the personal verification device 2, the transaction processing device 3, and the manager verification. By operating the device 4 and the card verification device 31 for confirming the user card, it is possible to perform the target cash accounting and the payment by the user card, and to realize the target useful and safe register. It means being able to do it. That is, (1) It becomes unnecessary to dispense and accept cash and to make a cash account by inserting and withdrawing a drawer containing cash as in the prior art, which saves labor and facilitates operation. (2) A cash voucher at the time of cash delivery between the clerk and the customer, because the cashier can automatically calculate it by operating the transaction processing device 3 without the cashier having to pay the cash. It is possible to eliminate the occurrence of troubles due to errors or the like regarding the types of. (3) By abolishing the withdrawal of cash by withdrawing cash and operating the transaction processing device 3 using the personal verification device 2, cash payment and the like are performed, and settlement is performed using a user card. It is possible to eliminate the risk that the cash will be stolen or robbed.

[0085]

Next, the effects of the present invention will be described.

As described above, according to the register of the present invention, a user card such as a prepaid card or a credit card is used together with an operator card and an administrator card, and a personal verification device, a transaction processing device, an administrator verification device, and By operating the card verification device that confirms the user card, it is possible to perform the target cash accounting and payment with the user card, and realize the target useful and safe register. It is a thing. That is, (1) There is no need to pay and receive cash and to make a cash account by inserting and withdrawing a drawer containing cash as in the conventional case, and there is an advantage that a labor is saved and an operation is easy and easy. (2) Since cashiers such as cashiers can automatically calculate by operating the transaction processing device without having to count the cash, the cash voucher at the time of cash transfer between the cashier and the customer There is an advantage that it is possible to eliminate troubles due to errors such as types. (3) By abolishing the withdrawal of cash by withdrawing cash and operating the transaction processing device using the personal verification device, it is possible to make cash payments and make payments using the user card. It can be done, and there is an advantage that it can eliminate the risk that the cash will be stolen or robbed.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a register according to a first embodiment of the present invention.

FIG. 2 is a block diagram of an electrical configuration showing a register of a first embodiment according to the present invention.

FIG. 3 is a flowchart of a processing procedure showing a register according to the first embodiment of the present invention.

FIG. 4 is an external perspective view showing a register of a second embodiment according to the present invention.

FIG. 5 is a block diagram of an electrical configuration showing a register of a second embodiment according to the present invention.

FIG. 6 is a flowchart of a processing procedure showing a register of a second embodiment according to the present invention.

[Explanation of symbols]

 1 Register 2 Personal verification device 3 Transaction processing device 4 Administrator verification device 5 Key opening / closing device 6 Receipt issuing device 7 Card carrier 8 Card verification device 9 Card reader 10 Case 11 Central processing unit (CPU) 12 Numeric keypad 13 Display device 14 Display device 15 Input / output interface 16 Code reading / determining device 17 Administrator card carrier 18 Administrator card verifier 19 Administrator card reader 20 Timer 21 Paper feeder 22 Printer 23 Operator card mouth 24 Banknote slot 25 Banknote transporter 26 Coin slot 27 Coin carrier 28 Administrator card port 31 Card verification device 32 Card carrier 33 Card verification device 34 Card reader 35 User card port 36 Timer K key M Memory

Claims (12)

[Claims] 1. A cash register is used to make a payment using a prepaid card, a credit card, or the like without directly entering or leaving cash.
A register characterized by that. 2. The register according to claim 1, wherein the register is started by confirming that the operator is authentic by using a personal verification device. 3. The personal verification device confirms whether or not the operator is authentic by collating the read data of the storage medium in which the operator-specific data is recorded with the data keyed by the operator. The register according to claim 2, wherein: 4. The personal verification device comprises a card carrier for carrying an operator card, a card verifier for verifying whether the operator card is a genuine operator card, and a card reader for reading the data of the operator card. 4. The register according to claim 2, wherein the card carrier, the card verifier, and the card reader are connected to the central processing unit. 5. The personal verification device is provided with a timer that can operate only for a specific time.
~ The register according to claim 4. 6. The register according to claim 1, wherein payment by a card is performed by operating a transaction processing device. 7. The register according to claim 6, wherein the transaction processing device performs calculation by inputting with a ten-key operation, and makes payment by a card according to the calculation result. 8. A transaction processing device comprises a central processing unit (CPU) for performing arithmetic processing, a ten-key for performing key operations such as four arithmetic operations, a display device for displaying arithmetic results, and a calculation result. 8. A register according to claim 6, further comprising a card payment device for performing payment by a card, wherein the ten-key pad, the display device, and the card payment device are connected to a central processing unit. 9. A transaction processing device scans a code attached to a commodity or the like to read code information, and converts the read code information into a digital signal to notify the central processing unit to perform ten-key operation. The register according to any one of claims 6 to 8, further comprising a code reading / determining device that performs a work instead of the above. 10. The transaction processing device comprises a cash withdrawal device for receiving and withdrawing cash according to a calculation result, the cash withdrawal device is connected to a central processing device, and indirectly operated by operating the transaction processing device. Cash in and out can be
The register according to claim 1 or any one of claims 6 to 9. 11. The transaction processing device comprises a key opening / closing device for opening / closing a key of a cash storage unit by using an administrator verification device for confirming that a register manager such as a store manager is authentic. The register according to claim 10, wherein the register is a register. 12. The register according to claim 11, wherein the key opening / closing device includes a timer that can be opened and closed only for a specific time.