JP2009287251A - Security device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a security device capable of easily adding an electronic authentication function to an opening/closing section to which a locking/unlocking means is provided. <P>SOLUTION: An electronic lock 2 includes an electronic lock body 34 (comprising a case 32 and a mounting base 33) formed separately from a door 51 and attached to a door 51. The electronic lock body 34 includes an RF communication section for calling the electronic lock 1 for identificaion information by radio signals and receiving the identification information returned from the electronic lock; a lock arm 35 having a covering section 36 for restricting the unlocking operation of a key 54 by covering a part of the key 54 with the key 54 inserted into the key hole 53 of a lock 52 rotated in the lock position; and a locking/unlocking changing means for alternately sliding the lock arm 35 between the closed position where the covering section 36 covers a part of the key 54 and the open position where the covering section 36 leaves the key 54 each time the identification information transmitted from the electronic key and received by the RF communication section is registrated beforehand matches the pre-registerd identification information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a security device.

Conventionally, as this type of security device, an electronic lock that is incorporated in advance in a hinged door of a storage that stores articles such as documents, an interrogator that controls the unlocking and unlocking operation of the electronic lock, There has been provided a system including a responder carried by a person permitted to open and close (see, for example, Patent Document 1). In this system, when the responder is brought close to the interrogator, wireless communication is performed between the responder and the interrogator, and the identification information returned from the responder in response to the transmission radio wave from the interrogator is transmitted to the interrogator. When the identification information coincides with the previously registered identification information, the electronic lock provided by the interrogator on the hinged door is unlocked or locked.
JP 2007-239176 A

  In the security device described above, an interrogator and an electronic lock are preinstalled in the hinged door of the storage, which is expensive, and if it is desired to add an electronic authentication function to the existing storage, replace the storage itself. I had to.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a security device that can easily add an electronic authentication function to an opening / closing part provided with a locking / unlocking means. It is to provide.

  In order to achieve the above object, the invention of claim 1 is the result of authenticating identification information received from an electronic key having a function of storing unique identification information and returning identification information by a radio signal. And an electronic lock that regulates or permits the unlocking operation of the locking / unlocking means for locking / unlocking the door and the opening / closing part such as a drawer, and the electronic lock is formed separately from the opening / closing part. An electronic lock body attached to the electronic lock body, a query means for making an inquiry about identification information by radio signal to the electronic key body and receiving the identification information returned from the electronic key; The restricting means for restricting the unlocking operation of the locking / unlocking means in a state where the opening / closing part is locked by the means, and whenever the identification information received from the electronic key by the inquiry means matches the pre-registered identification information, Status that regulates unlocking action Characterized by providing the unlocking switching means for alternately switching between a state for releasing the restriction of the unlocking operation and.

  According to a second aspect of the invention, in the first aspect of the invention, the locking / unlocking means includes a lock provided in the opening / closing portion and a key that is inserted into the lock and rotated to lock or unlock the lock. The restricting means is provided so as to be movable back and forth between a restricting position for restricting the rotation of the key by covering at least a part of the key and a releasing position for allowing the key to rotate apart from the key. To do.

  According to a third aspect of the present invention, in the second aspect of the present invention, the restricting means is provided with a detachable cover that covers at least a part or all of the key. A type is provided, and a type of cover portion corresponding to a target key is selectively used.

  According to a fourth aspect of the present invention, in the first aspect of the invention, the locking / unlocking means includes a lock provided on the opening / closing portion and a key that is inserted into the lock and rotated to lock or unlock the lock. The restricting means is characterized in that it can be moved forward and backward between a restricting position that hides at least a part of the keyhole into which the key is inserted and a release position that exposes the entire keyhole.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the electronic lock is provided with storage means for storing a history of identification information received by the inquiry means.

  According to the first aspect of the invention, an electronic authentication function can be easily added by attaching the electronic lock body to an existing opening / closing part such as a door or a drawer provided with a locking / unlocking means. Also, in order to prevent operation of the door and the drawer handle, it is necessary to cover the entire handle, and it is difficult to handle various types of doors and drawers. By restricting the unlocking operation, the opening / closing part such as the door or the drawer is locked in the locked state, and therefore it is possible to easily cope with various kinds of opening / closing parts.

  According to the second aspect of the present invention, the restricting means moves to the restricting position and covers at least a part of the key, thereby restricting the rotation of the key and restricting the unlocking operation.

  According to invention of Claim 3, it can respond | correspond to the key of various shapes and magnitude | sizes by replacing | exchanging a cover part.

  According to the invention of claim 4, the restricting means moves to the restricting position and covers at least a part of the keyhole, so that the key cannot be inserted and the unlocking operation can be restricted.

  According to the invention of claim 5, it is possible to grasp which electronic key is used to unlock the electronic lock based on the history of the identification information stored in the storage means. In addition, when the unlocking history is recorded on the electronic key side, if the person who has illegally unlocked the electronic lock using the electronic key takes the electronic key away, the unlocking record by the electronic key does not remain. According to the above, since the history of the identification information is left on the electronic lock attached to the opening / closing part such as the door or the drawer, it is possible to more reliably leave a record of which electronic key is used for locking and unlocking. it can.

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
Embodiment 1 of a security device according to the present invention will be described with reference to FIGS. In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the direction shown in FIG. 1A, and the upper side in FIG. 1B is defined as the front side and the lower side is defined as the rear side. Give an explanation. Here, FIG. 1A is a front view of the state in which the security device A is attached to the outer surface of the door 51 of the storage. The upper side in FIG. 1B is the outer side of the door 51, and the lower side is the door 51. Inside.

  This security device A is used for adding an electronic authentication function to open / close a double door 51 (for example, as shown in FIGS. 1 to 3), and stores different unique identification information. In addition, based on the result of authenticating the identification information received from the electronic key 1 and the electronic key 1 having a function of returning identification information by a radio signal, the unlocking operation of the lock 52 of the door 51 serving as the opening / closing unit is restricted or The electronic lock 2 is permitted. In the present embodiment, the door 51 of the cabinet 50 that stores documents and the like will be described as an example. However, the present embodiment may be applied to a locker, a door provided at an entrance, a drawer, or the like.

  FIG. 6 is a block diagram of the security device A. The electronic key 1 includes an antenna coil 11, a storage unit that stores unique identification information, and an IC 12 that has a communication function that returns identification information using a radio signal as a chip. . As shown in FIGS. 5A and 5B, the electronic key 1 has a key body 13 made of a nonmagnetic material (for example, a synthetic resin) having one end formed in a cylindrical shape and the other end formed in a flat plate shape. The antenna coil 11 and the IC 13 are housed inside the key body 13. The key body 13 is formed in a size that can be gripped by a human hand, and the antenna coil 11 is accommodated facing the front end surface of one end side (cylindrical portion 14 side) of the key body 13.

  On the other hand, as shown in FIG. 6, the electronic lock 2 includes an arithmetic processing unit 20, an antenna coil 21, an RF communication unit 22 (question means), a motor 23, a motor driving unit 24, and a closing detection magnetic sensor 25. An open detection magnetic sensor 26, a communication interface (hereinafter referred to as communication I / F) 27, a storage unit 28, an operation display green light emitting diode (hereinafter referred to as green LED) 29, and red. A light emitting diode (hereinafter referred to as a red LED) 30 and a push button switch 31 are provided as main components, and operate with a built-in battery (not shown) as a power source. In this embodiment, since the electronic lock 2 operates using a battery as a power source, there is an advantage that the degree of freedom of the attachment position is high, but power may be supplied from an AC adapter (not shown) or the like.

  The arithmetic processing unit 20 is composed of a microcomputer, for example, and performs overall control of the internal circuit of the electronic lock 2. The arithmetic processing unit 20 includes a clock block 20a that obtains current date and time information by counting operation clocks.

  The RF communication unit 22 transmits a wireless signal to the electronic key 1 via the antenna coil 21 and receives a wireless signal returned from the electronic key 1 in response to the transmission of the wireless signal.

  The motor 23 advances and retracts a lock arm 35 (regulating means), which will be described later, between a closed position for regulating the unlocking operation of the key 54 inserted into the key hole 53 and an open position for releasing the regulation. Here, the lock 52 and the key 54 provided on the door 51 constitute a locking / unlocking means.

  The motor drive unit 24 rotates the motor 23 forward or backward according to a control signal input from the arithmetic processing unit 20.

  The closing detection magnetic sensor 25 is composed of, for example, a Hall element, and detects that the lock arm 35 has moved to the closed position by detecting the magnet embedded in the lock arm 35 when the lock arm 35 has moved to the closed position. .

  The open detection magnetic sensor 26 is composed of, for example, a Hall element, and detects that the lock arm 35 has moved to the open position by detecting a magnet embedded in the lock arm 35 when the lock arm 35 has moved to the open position. .

  The communication I / F 27 performs data communication with an external management apparatus 60 such as a personal computer by a communication method such as RS-232C.

  The storage unit 28 includes, for example, a ROM and a RAM, and stores an operation program, identification information of the electronic key 1 registered in advance, and a history of identification information of the electronic key 1 used for opening and closing.

  When the push button switch 31 is pressed by the key body 13 of the electronic key 1, the push button switch 31 is turned on, and an on signal is output to the arithmetic processing unit 20.

  Each circuit element of the electronic lock 2 described above is housed in a rectangular parallelepiped case 32 as shown in FIGS. The case 32 is attached to the front side of the mounting base 33 (the surface opposite to the door 51), and the lock arm 35 is attached to the left and right sides of the electronic lock body 34 including the case 32 and the mounting base 33 so as to be movable back and forth in the horizontal direction. It has been. A cover portion 36 that is elongated in the front-rear direction and has a left side opening is integrally attached to the tip of the lock arm 35. And the attachment base 33 is attached to the position which covers at least one part of the key 54 in which the cover part 36 exists in a locking position in the state which the lock arm 35 advanced. The mounting base 33 is adhesively fixed to the door 51 using, for example, a double-sided tape, but may be screwed using a fixing screw or the like. Then, as shown in FIG. 1, when the lock arm 35 moves forward to the closed position (moves to the left in FIG. 1), the right half of the key 54 rotated to the locked position is covered by the cover portion 36. If an attempt is made to rotate the key 54 in this state, the key 54 interferes with the inner surface of the cover portion 36 and the key 54 cannot be rotated. Therefore, the unlocking operation by the key 54 cannot be performed, and the lock 52 of the door 51 is locked. It will be locked. On the other hand, as shown in FIG. 2, when the lock arm 35 is retracted to the open position (moved to the right in FIG. 2), the cover portion 36 is moved to a position where the entire key 54 is exposed, so that the key 54 is freely rotated. The unlocking operation or the locking operation using the key 54 can be performed.

  In addition, a transmitting portion 37 that transmits the light of the green LED 29 and the red LED 30 to the outside from the front to the top of the case 32 is provided, and a push button 31a of the push button switch 31 is disposed facing a round hole 38 provided in the front of the case 32. Further, the antenna coil 21 is disposed inside the case 32 in the vicinity of the push button 31a. Here, the inner diameter of the round hole 38 is formed to be slightly larger than the outer diameter of the cylindrical portion 14 of the electronic key 1.

  A connection connector 39 (for example, a pin jack connector) for the communication I / F 27 is disposed on the lower surface of the case 32.

  Next, the operation of the security device of this embodiment will be described based on the flowchart of FIG. In the storage unit 28 of the electronic lock 2, it is assumed that identification information of one or more electronic keys 1 permitted to perform the locking / unlocking operation is registered in advance.

  When the battery power is turned on, the arithmetic processing unit 20 of the electronic lock 2 executes the operation program stored in the storage unit 28, performs the initial setting, and then monitors the signal input from the push button switch 31 (step S1). ). When a person who is permitted to open and close the door 51 of the cabinet 50 brings the cylindrical portion 14 of the electronic key 1 into contact with the push button 31a exposed from the round hole 38 of the electronic lock 2, and presses the push button 31a with the cylindrical portion 14, the push button The switch 31 is turned on. When the ON signal is input from the push button switch 31, the arithmetic processing unit 20 starts supplying power from the battery power source to the RF communication unit 22 to perform wireless communication (step S2). At this time, the RF communication unit 22 makes an inquiry about identification information to the electronic key 1 through a radio signal via the antenna coil 21, receives identification information returned from the electronic key 1, and calculates the received identification information. It outputs to the part 20 (step S3). As described above, in the present embodiment, power is supplied to the RF communication unit 22 and RF communication is performed only when the push button switch 31 is pressed on the key body 13, thereby reducing power consumption by the RF communication unit 22. Battery consumption can be suppressed. Further, since the wireless communication is performed in a state where the key body 13 of the electronic key 1 is in contact with the push button 31a, the power required for the wireless communication can be further reduced.

  And if the arithmetic processing part 20 acquires identification information from the electronic key 1 in the process of step S3, the identification information of the electronic key 1 in which the locking / unlocking operation was permitted is read from the memory | storage part 28, and the identification information acquired in step S3 and It is determined whether or not they match (step S4). Here, if the authentication of the identification information fails in step S4, the locking / unlocking operation is not performed, the date / time information at the time of access is taken from the clock block 20a, and the date / time information and the identification information are stored in the storage unit 28. After that, the process returns to step S1.

  On the other hand, if the authentication is successful in step S4, the arithmetic processing unit 20 serving as the locking / unlocking switching unit determines whether the lock arm 35 is in the open position based on the detection outputs of the close detection magnetic sensor 25 and the open detection magnetic sensor 26. It is determined whether it is in the closed position (step S5). Here, if the lock arm 35 is in the closed position, the arithmetic processing unit 20 controls the motor driving unit 24 to rotate the motor 23 in the direction in which the lock arm 35 moves in the opening direction, thereby opening the magnetic sensor 26 for detection. Is detected to be in the open position, the motor drive unit 24 stops the rotation of the motor 23 (step S6). Thereafter, the arithmetic processing unit 20 takes in the date / time information at the time of performing the opening operation from the clock block 20a, stores the date / time information and the identification information of the electronic key 1 in the storage unit 28, and returns to step S1. At this time, the cover portion 36 of the lock arm 35 moves away from the key 54 inserted into the lock 52, and the entire key 54 is exposed. Therefore, the key 54 can be freely rotated, and the lock 52 can be unlocked / locked. It becomes possible.

  If the result of determination in step S5 is that the lock arm 35 is in the open position, the arithmetic processing unit 20 controls the motor drive unit 24 to rotate the motor 23 in the direction in which the lock arm 35 moves in the closing direction, and close it. When it is detected that the detection magnetic sensor 26 has come to the closed position, the motor drive unit 24 stops the rotation of the motor 23 (step S7). After that, the arithmetic processing unit 20 takes in the date / time information at the time of performing the closing operation from the clock block 20a, stores the date / time information and the identification information of the electronic key 1 in the storage unit 28, and returns to step S1. At this time, the cover portion 36 of the lock arm 35 covers a part of the key 54 inserted into the lock 52, the rotation of the key 54 is restricted, and the key 54 is held at the lock position. Is regulated.

  When the arithmetic processing unit 20 repeatedly executes the above processing, the storage unit 28 accumulates the history of the identification information of the electronic key 1 used for unlocking or locking. Therefore, by connecting the signal line from the management device 60 to the connection connector 39 and performing communication with the arithmetic processing unit 20 via the communication I / F 27, the management device 60 records the identification information from the electronic lock 2. Can be read. Table 1 below shows the history of the identification information stored in the storage unit 28. The date and time (date and time) when the unlocking operation or the locking operation is performed, and the unlocking (the unlocking operation by the key 54 is regulated). Operation) or information indicating the lock (operation for releasing the restriction of the unlocking operation by the key 54).

  As described above, according to the present embodiment, since the electronic lock 2 is formed separately from the door 51 including the lock 52, the electronic lock 2 can be easily attached to the door 51. The unlocking operation of the key 54 can be regulated by the lock arm 35 in a state where the key 54 inserted into the lock 52 is rotated to the locking position. When electronic authentication is performed using the electronic key 1 whose identification information is registered in advance in the electronic lock 2, the lock arm 35 is moved from the closed position to the open position, and the key 54 is unlocked / locked. When the electronic authentication is performed again using the electronic key 1, the lock arm 35 is moved from the open position to the closed position, and the unlocking operation of the key 54 is restricted. It is possible to easily add an electronic authentication function.

  Further, in order to prevent the handle 55 of the door 51 from being operated, it is necessary to cover the entire handle 55, and it is difficult to deal with various types of doors 51, but the cover portion 36 of the lock arm 35. Since the door 51 is locked in a locked state by restricting the unlocking operation by the key 54 of the lock 52 provided on the door 51, there is an advantage that it is easy to deal with various types of doors 51.

  In this embodiment, a part of the key 54 is covered by the cover part 36 of the lock arm 35, but the entire key 54 may be covered. In this embodiment, in order to restrict the unlocking operation of the key 54 inserted into the lock 52, a part of the key 54 is covered by the cover 36, so the key 54 is removed and the key 54 is lost. There is no fear of it.

  In addition, the cover portion 36 can be freely attached to and detached from the lock arm 35, and a plurality of types of cover portions 36 are prepared according to the shape and size of the key 54, and the type of cover portion 36 corresponding to the target key 54 is provided It may be used selectively, and by replacing the cover 36, it is possible to correspond to the keys 54 of various shapes and sizes.

  Further, in the present embodiment, the unlocking operation of the key 54 is restricted by covering a part of the key 54 inserted into the lock 52 with the cover part 36, but at least a part of the key hole 53 with the lock arm 35 or The lock 52 may be covered, and the lock 52 can be locked so that the key 54 cannot be inserted into the key hole 53 by covering the key hole 53 of the locked lock 52 with the lock arm 35.

  In this embodiment, since the history of identification information received by the RF communication unit 22 is stored in the storage unit 28 of the electronic lock 2, which electronic information is stored based on the history of identification information accumulated in the storage unit 28. It is possible to grasp whether the electronic lock 2 is unlocked by using the key 1. When the unlocking history is recorded on the electronic key 1 side, if a person who has illegally unlocked the electronic lock 2 using the electronic key 1 takes the electronic key 1 away, the unlocking record by the electronic key 1 remains. Although there is no history of identification information on the side of the electronic lock 2 attached to the door 51 in this embodiment, any electronic key 1 can be used to lock and unlock even if the electronic key 1 is taken away. You can keep a record of what you have done.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS. In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the orientation shown in FIG. 9B, and the upper side in FIG. 9C is defined as the front side and the lower side is defined as the rear side. Give an explanation. Here, FIG. 9B is a front view of the state in which the security device A is attached to the outer surface of the door 56b of the storage. The upper side in FIG. 9C is the outer side of the door 61, and the lower side is the door 51. Inside.

  In the first embodiment described above, the unlocking operation of the key 54 is restricted by covering at least a part of the key 54 with the cover portion 36 of the lock arm 35. However, in this embodiment, the lock arm 35 is used as the unlocking means. Engagement with a part restricts the unlocking operation. The configuration and operation of the security device are the same as those of the first embodiment except for the structure in which the lock arm 35 restricts the unlocking operation of the locking / unlocking means. The description is omitted.

  In this embodiment, a security device is applied to the cabinet 50 provided with sliding doors, and an electronic authentication function is added to open and close the two doors 56a and 56b.

  A mounting bracket 57 is attached to the front surface of the rear door 56a with a double-sided tape or the like at a position adjacent to the end of the front door 56b with the two doors 56a and 56b closed. The mounting bracket 57 has a rectangular plate shape, and both left and right end portions are folded in a U shape to form locking pieces 57a and 57a, and a stopper piece 57b is formed by folding the lower end portion in an L shape toward the front. It is.

  For example, a lock body 58 formed in a box shape with synthetic resin is detachably attached to the mounting bracket 57. The lock body 58 has locking grooves 58a and 58a into which the locking pieces 57a and 57a enter at both left and right sides. The lock body 58 and the mounting bracket 57 are aligned so that the lock body 58 is mounted from the upper side. 57, the locking piece 57a is engaged with the locking grooves 58a on both the left and right sides, the locking body 58 is positioned in the left-right direction, and the lower surface of the locking body 58 comes into contact with the stopper piece 57b to lock the locking body 58. The downward movement of the body 58 is restricted. Thus, in a state where the lock body 58 is attached to the mounting bracket 57, the end of the front door 56b abuts against the lock body 58, so that the doors 56a and 56b cannot be opened. On the other hand, when the lock body 58 is removed from the mounting bracket 57, the lock body 58 that restricts the movement of the front door 56b is eliminated, so that the doors 56a and 56b can be opened and closed. That is, in this embodiment, the mounting bracket 57 and the lock body 58 constitute a locking / unlocking means.

  On the other hand, on the front surface of the front door 56b, the case 32 (the electronic lock body) of the electronic lock 2 is made of a double-sided tape or the like so that the lock arm 35 faces the lock body 58 attached to the mounting bracket 57. It is attached directly. Here, the height dimension of the lock body 58 in the front-rear direction is set such that the front surface of the lock body 58 projects forward from the front surface of the lock arm 35 in a state where the lock body 58 is attached to the mounting bracket 57. In the right side surface of the lock body 58, an engagement hole 59 that engages with the lock arm 35 advanced to the closed position is opened.

  8 to 10 show a state in which the unlocking operation of the locking / unlocking means is restricted by the electronic lock 2, and the electronic lock 2 is inserted into the engagement hole 59 of the lock body 58 attached to the mounting bracket 57. Since the lock body 58 cannot be removed by engaging the lock arm 35, the lock body 58 (locking / unlocking means) is locked in the locked state, and the doors 56a, 56b are held in the closed state.

  In this state, when electronic authentication is performed using the electronic key 1 in which the identification information is registered in advance in the electronic lock 2, the lock arm 35 is moved from the closed position to the open position (moved to the right side) and locked. Since the arm 35 goes out of the engagement hole 59, the lock body 58 can be removed, and the doors 56a and 56b can be opened and closed by removing the lock body 58.

  Thereafter, when the doors 56a and 56b are locked by the electronic lock 2, after the lock body 58 is attached to the mounting bracket 57 and electronic authentication is performed using the electronic key 1, the lock arm 35 is moved from the open position. Since the lock arm 35 is moved to the closed position (moved to the left side) and is engaged with the engagement hole 59, the lock body 58 is locked in the locked state, and the doors 56a and 56b are held in the closed state.

(Embodiment 3)
A third embodiment of the present invention will be described with reference to FIGS. In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the direction shown in FIG. 12A, and the upper side in FIG. 12D is defined as the front side and the lower side is defined as the rear side. Give an explanation.
Here, FIG. 12A is a front view of the state in which the security device A is attached to the outer side surface of the door 51 of the storage. The upper side in FIG. 12D is the outer side of the door 51, and the lower side is the door 51. Inside.

  In the first embodiment described above, the unlocking operation of the key 54 is restricted by covering at least a part of the key 54 with the cover portion 36 of the lock arm 35. However, in this embodiment, the lock arm 35 is used as the unlocking means. Engagement with a part restricts the unlocking operation. The configuration and operation of the security device are the same as those of the first embodiment except for the structure in which the lock arm 35 restricts the unlocking operation of the locking / unlocking means. The description is omitted.

  In the present embodiment, a security device is applied to a cabinet 50 having a hinged door, and an electronic authentication function is added to the opening and closing of the two doors (the hinged doors) 51 and 51.

  A support rail 62 is attached to the front surface of one (left side) door 51 to support a belt-like dead bolt 61 so as to be slidable in the left-right direction. A lock fitting 63 having an engagement hole 64 into which the dead bolt 61 is detachably engaged is fixed. Thus, when the dead bolt 61 is slid to the right, the dead bolt 61 is engaged in the engagement hole 64 of the lock fitting 63, so that the doors 51 and 51 are locked in a closed state. On the other hand, when the dead bolt 61 is slid to the left, the dead bolt 61 comes out of the engagement hole 64 of the lock fitting 63 and the doors 51 and 51 can be freely opened and closed. That is, in this embodiment, the dead bolt 61 and the lock fitting 63 constitute a locking / unlocking means.

  A case 32 (electronic lock body) of the electronic lock 2 is located on the front surface of the right door 51 at a position where the lock arm 35 faces the dead bolt 61 in a state of being engaged with the engagement hole 64 of the lock fitting 63. It is directly attached using double-sided tape. On the upper surface of the dead bolt 61, a groove (not shown) is formed in which the tip of the lock arm 35 moved to the closed position is engaged.

  Here, FIGS. 11 and 12 show a state where the unlocking operation of the locking / unlocking means is restricted by the electronic lock 2, and the groove of the dead bolt 61 whose front end is engaged in the engagement hole 64 of the lock fitting 63. When the lock arm 35 is engaged, the unlocking operation of the dead bolt 61 is restricted, and the doors 51 and 51 are held in the closed state.

  In this state, when electronic authentication is performed using the electronic key 1 in which the identification information is registered in the electronic lock 2 in advance, the lock arm 35 is moved from the closed position to the open position (moved upward) to lock the lock. Since the arm 35 goes out of the groove of the dead bolt 61, the dead bolt 61 can be slid. At this time, the dead bolt 61 is moved to the left side and is taken out of the engagement hole 64 of the lock fitting 63, so that the doors 51 and 51 can be opened and closed.

  Thereafter, when the doors 51 and 51 are locked by the electronic lock 2, the dead bolt 61 is slid to the right and engaged with the engagement hole 64 of the lock fitting 63, and then electronically using the electronic key 1. If the authentication is performed, the lock arm 35 is moved from the open position to the closed position (moved downward), and the lock arm 35 is engaged with the groove of the dead bolt 61, so that the dead bolt 61 is locked in the locked state. The doors 51 and 51 are held in the closed state.

  In Embodiments 1 to 3 described above, the cabinet opening door and the sliding door have been described as an example of the opening / closing section. However, the target opening / closing section is not limited to the locker or the cabinet door, such as a desk or shelf drawer. It is also possible to attach the electronic lock 2 of the present invention, and if the structure of the lock arm is appropriately changed according to the locking / unlocking means provided in the opening / closing part, it can be used by being attached to various types of opening / closing parts. it can.

The state which locked the key with the electronic lock which comprises the security apparatus of Embodiment 1 is shown, (a) is a front view, (b) is a bottom view. The state which opened the key with the electronic lock which comprises the same is shown, (a) is a front view, (b) is a bottom view. It is an external appearance perspective view of the state which locked the key with the electronic lock which comprises the same. The electronic lock which comprises the same is shown, (a) is a front view, (b) is a bottom view, (c) is a left view. The electronic key which comprises the same is shown, (a) is a front view, (b) is a left view. It is a block diagram same as the above. It is a flowchart explaining operation | movement same as the above. It is an external appearance perspective view which shows the state which controlled the unlocking operation | movement with the electronic lock which comprises the security apparatus of Embodiment 2. FIG. The state which controlled the unlocking operation | movement with the electronic lock which comprises the same is shown, (a) is a top view, (b) is a front view, (c) is a bottom view. It is a left view of the state which controlled the unlocking operation | movement with the electronic lock which comprises the same. It is an external appearance perspective view which shows the state which controlled the unlocking operation | movement with the electronic lock which comprises the security apparatus of Embodiment 3. The state which controlled the unlocking operation | movement with the electronic lock which comprises the same is shown, (a) is a front view, (b) is a left view, (c) is a top view, (d) is a bottom view.

Explanation of symbols

1 Electronic key 2 Electronic lock 20 Calculation means (locking / unlocking switching means)
22 RF communication section (questioning means)
23 Motor 24 Motor drive section 32 Case 33 Mounting base 34 Electronic lock body 35 Lock arm (regulating means)
36 Cover 51 Door (Open / Close)
52 locks (locking / unlocking means)
53 Keyhole 54 Key (Locking / Unlocking Means)

Claims (5)

Based on the result of authenticating the identification information received from the electronic key and the electronic key having the function of storing the unique identification information and returning the identification information by radio signal, the door and the opening / closing unit such as a drawer are applied. An electronic lock that regulates or permits the unlocking operation of the locking / unlocking means,
The electronic lock has an electronic lock body that is formed separately from the opening / closing portion and attached to the opening / closing portion, and inquires of the electronic lock body for identification information by radio signal to the electronic key. Together with the inquiry means for receiving the identification information returned from the electronic key, the restricting means for regulating the unlocking operation of the locking / unlocking means with the opening / closing part locked by the locking / unlocking means, and the inquiry means received from the electronic key There is provided an unlocking / unlocking switching unit that alternately switches between a state in which the unlocking operation is regulated by the regulating unit and a state in which the regulation of the unlocking operation is released every time the identification information matches the previously registered identification information. Feature security device.   The locking / unlocking means includes a lock provided in the opening / closing section and a key that is inserted into the lock and rotated to lock or unlock the lock, and the restriction means includes at least a part of the key. 2. The security device according to claim 1, wherein the security device is provided so as to be movable back and forth between a restriction position that restricts rotation of the key by covering and a release position that allows rotation of the key away from the key.   The restricting means is provided with a detachable cover portion covering at least a part or all of the key, and a plurality of types of cover portions are provided according to the shape and size of the key. The security device according to claim 2, wherein the unit is selectively used.   The locking / unlocking means includes a lock provided on the opening / closing part and a key that is inserted into the lock and rotated to lock or unlock the lock, and the restricting means includes a keyhole into which the key is inserted. 2. The security device according to claim 1, wherein the security device is provided so as to be movable back and forth between a restriction position that hides at least a part thereof and a release position that exposes the entire keyhole.   The security device according to any one of claims 1 to 4, wherein the electronic lock is provided with storage means for storing a history of identification information received by the inquiry means.

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