JP2662329B2 - Key management device for security equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention centrally stores and manages keys used for entering and exiting a room in an office building or the like at an entrance or the like, and performs security setting and release of a security monitoring device in conjunction with insertion and extraction of keys. The present invention relates to a key management device for security equipment.

[0002]

2. Description of the Related Art Conventionally, as this type of key management apparatus, for example, the one shown in FIG. 9 is known. In FIG. 9, reference numeral 1 denotes a key management device, and a key storage unit 2 with a door is provided for each room. To use the key management device 1, a dedicated magnetic card 3 has been issued for each tenant in advance, and when the magnetic card 3 is passed through the card reader unit 4 of the key management device 1, the contents of the magnetic card 3 and the card reader unit 4 When the contents match, the indicator light is turned on and a chime sounds, the lock of the corresponding key storage unit 2 is released, and the door 5 is automatically opened.

At the time of entry and exit, as shown in an enlarged manner in section A, since the key 7 is mounted on the key set section 6 in the open door 5, when the key 7 is turned to the release position as shown by the arrow, the room is opened. The security set state of the security monitoring device installed in the state becomes the released state. Subsequently, when the key 7 is taken out to open the room, the door 5 is closed and automatically locked. When leaving, the door 5 is opened using the magnetic card 3 and the key 7 is set in the key set unit 6 and turned to the caution position indicated by an arrow as shown in the enlarged view of the part B. When the provided security monitoring device is in the alert set state and the door 5 is closed, it is automatically locked.

[0004]

However, such a conventional key management device normally operates by receiving a supply of commercial AC power, and operates by switching to an emergency battery during a power failure. When the emergency battery becomes unusable, the electric lock cannot be unlocked by the magnetic card, so that the key cannot be removed.

The present invention has been made in view of such a conventional problem. In an emergency such as when the battery has run out, the electric lock can be easily unlocked and the key can be taken out. An object of the present invention is to provide a key management device for security equipment.

[0006]

In order to achieve this object, the present invention is configured as follows. The reference numerals in the drawings of the embodiments are also shown. First, the present invention includes a plurality of key storage units,
A key management device of a security facility that unlocks a corresponding key storage unit 11 by an electric lock (solenoid) 23 based on an input operation by a card reader or the like at the time of entry and exit and allows the key 7 to be freely inserted and removed. .

According to the present invention, as a key management device for such security equipment, a battery 48 is provided and electrodes 50 and 52 for supplying power from the built-in battery 48 to the outside in a state of being set in the keyhole 40 are provided. An emergency master key 46, a keyhole 40 for inserting a master key provided in each of the plurality of key storage units 11, and a keyhole 40 only when the power of the apparatus is stopped.
When the master key 46 is set in the function key hole 40, emergency unlocking means for supplying power from the battery 48 of the master key 46 to the corresponding electric lock (solenoid) 23 to release the lock is provided. .

Further, the master key 46 has one or a plurality of magnet pins 54 indicating a specific key code. When a key code by a magnet chip 54 set in advance by setting the master key 46 in the keyhole 40 is detected, the master key 46 is detected. Power may be supplied from the built-in battery 48 to the corresponding electric lock 23 to release the lock.

[0009]

According to the key management device for security equipment of the present invention having such a configuration, it is desirable to take out the master key containing a battery even in an emergency so that the battery cannot be used due to a power failure or the like. When set in the keyhole of the key storage, power is supplied to the corresponding electric lock from the battery built into the master key, the electric lock is unlocked, the key can be easily removed, and operation problems due to running out of battery can be solved. Can be avoided.

In addition, even when the battery is mounted, for example, at the time of assembly or installation work on a production line, the lock of the electric lock can be easily released using the master key without mounting the battery. Further, by identifying the key code of the master key in which the magnet pin is embedded, unlocking by mischief using the master key of another tenant can be prevented.

[0011]

FIG. 1 is a block diagram of an embodiment showing an entire configuration of a key management device according to the present invention. In FIG. 1, reference numeral 10 denotes an apparatus main body, which is installed on a base 9. In this embodiment, a total of fifteen key storage units 11 in three rows and five columns are provided on the front surface of the apparatus main body 10.

As shown in the upper left corner, the key storage section 11 can be pulled out of the apparatus main body 10 by unlocking an electric lock by a built-in solenoid. Further, the key storage portion 11 has a key storage groove 12 which is opened at an upper part in a state where the key holder 13 is pulled out, and a key holder 13 having an appropriate key can be stored in the key storage groove 12. A magnetic card insertion slot 14 is provided at an upper portion of the apparatus main body 10, and a card inserted by a user is sent to a built-in card reader to be read. On the right side of the magnetic card insertion slot 14, a handling description section 17 is provided.

Further, a card input lamp 15 known as a position lamp and a security set / reset lamp 16 are provided on the upper part of the built-in portion of the key storage portion 11, respectively. When a magnetic card is inserted from the magnetic card insertion slot 14, the card input lamp 15 detects a match between the read result of the card reader and the contents of the card stored in the memory, and determines that the card input is valid. The lamp is turned on, and at the same time, it is notified that the lock of the electric lock of the key storage unit 11 has been unlocked and the electronic lock can be pulled out.

The security set / reset lamp 16 displays the state of the security monitoring device in the compartment or room used by the tenant corresponding to the key storage unit 11. For example, the red lamp is turned on when the alarm is released when the door of the room is not locked, and turned off when the alarm is set.
Further, a key hole 40 for inserting a master key, which will be described later, is provided below the key storage unit 11, respectively.

FIG. 2 is an explanatory view showing a built-in structure of the three rows of key storage units 11 built into the apparatus main body 10 of FIG. In FIG. 2, the key storage unit 1 shown in a pulled-out state at the right end.
As is apparent from FIG. 1, the key storage portion 11 has a cylinder portion 21 of a cylindrical lock at the front end side, a rectangular portion 22 at the rear end following the cylinder portion 21, and the cylinder portion 21 passes through a circular hole of the device panel. Although it can freely come and go, it hits the panel hole at the position of the rectangular portion 22 at the rear end to prevent escape.

A key storage groove 12 is formed in the upper part of the cylinder portion 21 in the longitudinal direction. The key storage groove 12 has a concave portion 31 formed at an intermediate portion so that the key holder 13 stored in the key storage portion 11 can be easily taken out. To be able to. The key storage unit 11 is slidably incorporated in a storage case 18 having a rectangular hole. A switch hole 19 is opened at an upper position of the storage case 18 corresponding to the key storage portion 11.
Behind the switch hole 19, a support piece 32 of an electromagnetic solenoid having a function as an electric lock which will be described later.
Has been erected.

A circuit board 20 is arranged above the storage case 18 as shown by a broken line, and the circuit board 20 is supported by an L-shaped bracket 33 fixed to the upper part of the storage case 18. Further, a master key set section 42 is provided at a position corresponding to the key storage section 11 on the lower side of the storage case 18, respectively.
The master key set 42 has a key insertion slot 44 for inserting a master key on the front surface.

FIG. 3 is a side sectional view of FIG. 2, showing the key storage portion 11 pushed and held in the storage case 18. In FIG. 3, an electromagnetic solenoid 23 used as an electric lock is attached to a support piece 32 erected on the upper part of the storage case 18. The electromagnetic solenoid 23 is disposed with the plunger 24 facing downward, and the plunger 24 is turned off when the electromagnetic solenoid 23 is turned off.
A pin hole 25 provided in the upper portion of the rectangular portion 22 at the rear end is prevented from coming out.

When power is supplied to the electromagnetic solenoid 23, the plunger 24 comes off the pin hole 25, and the lock of the key storage 11 is released. The on / off control of the electromagnetic solenoid 23 is performed by a control signal from a card reader when a magnetic card is inserted. According to the present invention, the storage case 1 is used in an emergency when the battery of the apparatus is exhausted.
8 has a keyhole 40 in the master key set section 42
By inserting a more master key, the electromagnetic solenoid 23
To unlock the lock.

A detection switch 26 is mounted below the circuit board 20 installed above the storage case 18. The detection switch 26 is provided with a switch lever 27 at a lower portion.
The presence / absence of the key ring 13 housed in the key housing unit 11 in the housed state is detected via. For example, if the key ring 13 is inserted as shown in FIG.
Is pushed up and the detection switch 26 is turned on. On the other hand, if the key ring 13 is not inserted, the switch lever 27 is further lowered, and the detection switch 26 is turned off.

The switch signal of the detection switch 26 which detects the presence / absence of the key ring 13 is used by the key management device of the present invention to output an alert set signal and an alert release signal to a security monitoring device provided in a room for each tenant. .
That is, when the key storage unit 11 is pushed in, the detection switch 2
When the key ring 13 detects the key ring 13, it outputs a security set signal to the security monitoring device. On the other hand, when the key ring 13 is not detected, it outputs a security release signal because the tenant is using the key.

Further, a push mechanism 28 is provided at the rear of the key storage section 11 stored in the storage case 18. The push mechanism 28 includes a pressing portion 29, and the electromagnetic solenoid 23
When the lock is released by energizing, the key storage portion 11 is pushed out through the pressing portion 29 by the built-in spring. The push mechanism 28 may be configured such that the pressing portion 29 is simply pressed by a spring and the tip of the storage portion 11 is protruded when the lock is released by the electromagnetic solenoid 23.

On the other hand, even if the lock is released by the electromagnetic solenoid 23 as the push mechanism 28, the key storage portion 11 is not pushed out in this state, and the user pushes the tip exposed outside of the key storage portion 11 by pushing. When the pressing portion 29 is pushed into the push mechanism 28, a mechanism having a mechanism structure in which the latch of the spring is released by this pushing and the key storage portion 11 is pushed to the outside may be used. As described above, as a push mechanism that once pushes the key storage unit 11 and pushes it out,
For example, a magnet latch NL80 type manufactured by Sugatune can be used.

FIG. 4 is an explanatory diagram of the key holder 13 used in the key management device of the present invention. In FIG. 4, the key ring 13 has two plates 34 arranged with a space therebetween, and the plates 34 are fixed by fixing screws 35. By removing the fixing screws 35, a key can be inserted therein. Key 7
Is rotatably attached to the fixed screw 35,
When used, it may be taken out of the apparatus, and when housed in the key management device, it may be put in the key holder 13 as indicated by a broken line 7 '.

The plate 34 is provided with a check hole 36 so that the key can be confirmed to be in the stored state and the key 7 'in the stored state can be easily taken out. FIG. 5 is an explanatory diagram showing one embodiment of the master key used in the present invention. In FIG.
The master key 46 has a built-in battery 48 in a handle portion. As the battery 48, a coin-type battery or a pack-type lithium battery can be used. Electrodes 50 and 52 are provided on both sides of the tip of the key portion.
Are connected by signal lines as indicated by broken lines. Furthermore,
A magnet pin 54 is embedded in one side of the key portion. The magnet pin 54 magnetically sets a specific key code depending on the presence or absence thereof.

FIG. 6 shows a state in which the master key 46 of FIG. 5 is set in the master key setting section 42 of the apparatus. When the master key 46 is set in the master key set section 42, the contacts 56 and 58 on the device side come into contact with the electrodes 50 and 52 of the master key 46, respectively, and power is supplied to the device from the battery 48 incorporated therein.

The magnetic pin 54 provided on the master key 46 has its magnetic pole surface facing the key code detection switch 45 built in the master key set section 42, and the setting state of the key code detection switch 45 is determined by the magnet pin 54.
Are turned on by the magnetic force from the magnet pin 54 when the arrangement matches the above arrangement. FIG. 7 is a block diagram showing an embodiment of the control circuit of the present invention which can release the lock by operating the electromagnetic solenoid using the master key in an emergency.

In FIG. 7, reference numeral 60 denotes a card reader, 62
Denotes a determination unit using a CPU or the like, 64 denotes a memory unit storing the contents of a card reader for each key storage unit, 66 denotes a solenoid control unit, 68 denotes an alarm output unit, and 70 denotes a power supply unit. The card reader 60 reads a magnetic card issued in advance and checks it against the card contents stored in the memory unit 64,
When the contents match, the card input lamp 15 provided at the position of the corresponding key storage unit 11 is turned on via the solenoid control unit 66, and a chime or the like is sounded if necessary. At the same time, power is supplied to the electromagnetic solenoid 23 serving as an electric lock, and the lock of the key storage unit 11 is released.

The unlocked key storage 11 is pulled out, the key holder 13 is taken out, and the key storage 11 is pushed into the apparatus main body 10 again. The detection switch 26 detects the absence of the key holder 13 and outputs it. The signal of the detection switch 26 is given to the judgment unit 62, which outputs an alarm release signal to the security monitoring device installed in the room of the corresponding tenant via the alarm output unit 68, and Before the user who takes out the door of the room opens the door of the room, the security monitoring device which has been in the security set state is released and the burglar alarm is prevented from being issued even if the user unlocks the key and enters the room.

On the other hand, when going out, the key storage section 11 may be pulled out by inserting a magnetic card, the key holder 13 may be returned, and the key storage section 11 may be pushed into the apparatus body 10. In this case, since the detection switch 26 detects that the key ring 13 is present, the judging section 62 outputs an alarm set signal to the security monitoring device in the corresponding room via the alarm output section 68 to be in an alert state. .

On the other hand, when a power failure occurs, the power supply to the power supply unit 70 is stopped. However, since the battery 72 is incorporated, the power supply is switched to the power supply from the battery 72. However, in a case where the power supply from the battery 72 cannot be performed due to a prolonged power failure, the operation state is such that the unlocking operation of the electric lock by the master key 46 is enabled.

For this reason, the power supply unit 70 is provided with a relay 74 for recovering when the battery 72 has run out. The relay 74 has a switching contact 76, and the a side of the switching contact 76 is inserted in series into an energizing circuit of the electromagnetic solenoid 23 that operates as an electric lock. A power supply line from the master key set unit 42 is connected to the b-side of the switching contact 76 and the minus side of the electromagnetic solenoid 23.

Next, the unlocking operation of the electric lock by the master key 46 when the battery 72 runs out will be described. First,
The relay 74 is turned on and the switching contact 76
Is closed to the a side as shown in the figure. Therefore, the electromagnetic solenoid 23 is on / off controlled by a control signal from the solenoid control unit 66. That is, under the control of the determination unit 62 based on the result of reading the magnetic card by the card reader 60, the lock is released by energizing the electromagnetic solenoid 23.

However, if the battery 72 runs out, the electric electromagnetic solenoid 23 cannot be unlocked based on the result of reading the magnetic card by the card reader 62. At this time, when the battery 72 runs out, the relay 74 is restored, and the switching contact 76 switches to the b side as shown by the broken line. That is, the electromagnetic solenoid 23 is connected to the master key set section 42 side.

When the master key 46 is set in the master key set section 42 in this state, power is supplied to the electromagnetic solenoid 23 from the built-in battery 48 through the switching contact 76 as shown in FIG. The lock of the key storage unit 11 can be released by energizing 23. FIG. 8 is a block diagram showing another embodiment of the control circuit of the present invention. The key code detection switch 45 provided in the master key set section 42 of FIG. It is characterized by being provided in.

In FIG. 8, the master key set section 42
The key code detection switch 45 is connected in series to the power supply line on the plus side of the switching contact 76 with respect to the b side.
As shown in FIG. 6, when the master key 46 is set in the master key setting section 42, the key pin detection switch 45
4 is a predetermined arrangement, the switch contact is turned on by the magnetic force of the magnet pin 54, and at the same time, the master key 4
Key code detection switch 45 from battery 48 built in 6
And the lock can be released by energizing the electromagnetic solenoid 23 via the switching contact 76 switched to the b side.

On the other hand, when a master key used in a key storage unit of another tenant is set in the master key set unit 42, the key code by the magnet pin is different for each key storage unit, so that the key code detection switch 45 is turned on. However, even if another master key 46 is set, lock release by energization of the electromagnetic solenoid 23 is prevented. This prevents the key storage unit 11 from being opened due to mischief or the like in an emergency.

[0038]

As described above, according to the present invention, in an emergency when the power supply of the device is completely stopped, the solenoid of the electric lock is directly supplied from the battery of the master key by inserting the master key. Thus, the lock of the key storage unit can be released to enable removal, and there is no need to open the door of the apparatus main body and mechanically operate the electric lock, so that key management in an emergency can be made more appropriate.

Further, even when there is no power supply at the time of assembling or installation work on the production line, the operation of the key storage unit can be checked by using the master key. Furthermore, as a countermeasure in case of failure of battery backup at the time of power failure from the viewpoint of the safety and operation of the device, the reliability in operation is improved by enabling the use of a master key as an emergency measure. Can be.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment showing an overall configuration of the present invention.

FIG. 2 is an explanatory view showing storage mechanisms arranged in three rows in FIG. 1;

FIG. 3 is a side view of the storage mechanism of FIG. 2;

FIG. 4 is an explanatory view of a key ring used in the present invention.

FIG. 5 is an explanatory diagram of a master key used in the present invention.

FIG. 6 is an explanatory diagram showing a set state of a master key in a master key set section of the device.

FIG. 7 is a configuration diagram showing an embodiment of a control circuit according to the present invention;

FIG. 8 is a block diagram showing another embodiment of the control circuit of the present invention for identifying and unlocking a key code.

FIG. 9 is an explanatory diagram of a conventional key management device.

[Description of Signs] 7: Key 3: Magnetic card 10: Key management device 11: Key storage member 12: Key storage groove 13: Key holder 14: Magnetic card slot 15: Podition lamp 16: Security set / reset lamp 17: Instruction description part 18: Storage case 19: Switch hole 20: Circuit board 21: Cylinder part 22: Rectangular part 23: Electromagnetic solenoid 24: Lock pin 25: Pin hole 26: Detection switch 27: Switch lever 28: Push mechanism 29: Pressing part 30: Panel 31: Depression 32: Support piece 33: L-shaped bracket 34: Plate 35: Fixing screw 36: Check hole 40: Key hole 42: Master key set part 44: Key insertion slot 45: Key code detection switch 46 : Master key 48: Battery 50, 52: Electrode 54: Magnet pin 56, 58: Contact 0: card reader 62: determination unit 64: Memory unit 66: solenoid control unit 68: alarm output unit 70: power supply unit 72: battery 74: Relay 76: switching contact

 ──────────────────────────────────────────────────続 き The continuation of the front page (72) Koichi Takada, inventor, Hochiki Co., Ltd. 2- 10-4, Kami-Osaki, Shinagawa-ku, Tokyo (56) References JP-A-3-100286 (JP, A) JP-A 3-186457 (JP, A) Japanese Utility Model Showa 63-179376 (JP, U)

Claims (2)

(57) [Claims] 1. A security system comprising a plurality of key storage units, wherein a lock is released by an electric lock of a corresponding specific key storage unit based on an input operation by a card reader or the like at the time of input / output, and a key can be freely inserted and removed. In the key management device of the above, an emergency master key having a built-in battery and an electrode for supplying power from the built-in battery to the outside in a set state in the keyhole, and provided in each of the plurality of key storage units A keyhole for inserting the master key, which functions only when the power of the device is stopped, and when the master key is set in the keyhole, power is supplied from the battery built in the master key to the corresponding electric lock to release the lock. A key management device for security equipment, comprising: an unlocking means; 2. The key management device for security equipment according to claim 1, wherein said master key further comprises one or a plurality of magnet pins indicating a specific key code, and said emergency unlocking means is provided with said master key. A key management device for security equipment, characterized in that when a key code set by the magnet pin set in advance in a keyhole is detected, power is supplied from a battery built in a master key to a corresponding electric lock to unlock the lock.