JP4627202B2 - Locking device - Google Patents

Description

  The present invention relates to a technique for adding a locking / unlocking function to storage means such as a cabinet.

  Some cabinets for storing stored items such as files have doors that can be opened and closed. A latch mechanism for maintaining the door in a closed state is incorporated in the cabinet door. For example, the latch mechanism is configured to be in a locked state or an unlocked state in conjunction with an operation of an operation lever incorporated in a door handle.

  By the way, in order to improve security, it is sometimes necessary to add a locking / unlocking function to the cabinet as described above.

  Here, as a locking device that can be retrofitted to the drawer, as in Patent Document 1, a latch mechanism is attached to the main body of the storage means, and a lock member of the latch mechanism is engaged with the drawer, thereby opening the drawer. There is something to prevent.

JP 2001-303828 A

  However, in the technique disclosed in Patent Document 1, it is necessary to attach the latch mechanism to the main body while taking into account the relative positional relationship between the main body of the storage means and the drawer, and it is difficult to attach the latch mechanism.

  Then, the subject of this invention is providing the technique which can attach a locking device easily with respect to a storage means.

In order to solve the above problems, the present invention provides a storage main body, an opening / closing member that can be opened and closed with respect to the storage main body, a latch mechanism that locks the opening / closing member so as to be closed, and the opening / closing A locking device attached to a storage means provided on an outer surface side of a member and having an operation portion for locking and unlocking the latch mechanism, the device main body being attachable to the outer surface side of the opening / closing member When mounted on the apparatus main body, the user will shield the possible exposing the operation portion to the outside and the operation portion so that it can be unlocked operate the latching mechanism grabs the operation portion from the outside a shielding member that covers openably said operating portion so as to be able to lock the closing state of the shielding member in accordance with the locking operation, shielding locking means for releasing the lock in accordance with the unlocking operation , It is those with a.

  In this case, it further includes a key for locking and unlocking the shielding lock means, the key storing a storage unit that stores use availability information, and a control unit that performs an operation related to authentication based on the use availability information. The shielding lock means has a set part capable of setting the key, and operates by receiving power supply from the key when the key is set in the set part. It is also possible to perform an authentication operation by communicating with and release the lock of the shielding member when it is determined that it can be used.

  Furthermore, the shielding lock means may further include first key removal prevention means for preventing the key from coming off from the set portion in the opened state of the shielding member.

  In addition, the configuration may further include second key removal prevention means for preventing the key from coming off from the set portion in a state where the opening / closing member is opened.

  Moreover, you may further provide the emergency release means for enabling the said operation part to be exposed outside irrespective of opening and closing of the said shielding member.

  Further, an open / close detection sensor for detecting an open / close state of the open / close member, and an informing means when it is determined that the opening time of the open / close member exceeds a predetermined time based on the output of the open / close detection sensor And a warning control means for issuing a warning.

According to the locking device of the present invention, the device main body that can be attached to the outer surface side of the opening / closing member, and the user can grasp the operation unit from the outside and attach the operation mechanism to unlock the latch mechanism. A shielding member that opens and closes the operation part so that the operation part can be exposed to the outside and the operation part can be shielded, and the shielding member is put into a shielding state according to a locking operation. Since it is provided with shielding lock means for locking and releasing the lock according to the unlocking operation, the lock device is attached to the outer surface side of the opening / closing member, so that it can be locked or unlocked using a key or the like. Thus, the operation unit can be exposed to the outside or can be shielded. For this reason, this locking device can be easily retrofitted to the storage means having the latch mechanism and the operation unit, and a locking function can be added.

  Further, in this case, a key for locking and unlocking the shielding lock means is further provided, and the key is a storage unit that stores use availability information, and a control that performs an operation related to authentication based on the use availability information. And the shielding lock means has a set part capable of setting the key, and operates by receiving power supply from the key when the key is set in the set part, If the lock is to be unlocked when it is determined that it can be used by performing an authentication operation by communicating with the key, the lock device itself can be electronically installed without a power supply. A simple locking device can be incorporated. Therefore, the lock device can be more easily assembled.

  Further, the shielding lock means further includes first key removal prevention means for preventing the key from coming off from the set portion when the shielding member is in an opened state. Therefore, it is possible to prevent a situation where the key is removed and left with the shielding member opened.

  Further, when the opening / closing member is opened, and further comprising a second key removal prevention means for preventing the key from coming off from the set portion, the key cannot be removed while the opening / closing member is opened. It is possible to prevent a situation where the key is removed and left with the opening / closing member open.

  Furthermore, if an emergency release means for enabling the operation unit to be exposed to the outside regardless of whether the shielding member is opened or closed, it is possible to easily cope with a failure or the like.

  An open / close detection sensor for detecting an open / close state of the open / close member, and a notification means when it is determined that the opening time of the open / close member exceeds a preset predetermined time based on the output of the open / close detection sensor. If it is further provided with a warning control means for issuing a warning, it is possible to prevent the opening / closing member from being left for a long period of time while being opened.

{Embodiment}
Hereinafter, a lock device according to an embodiment of the present invention will be described.

  FIG. 1 is a perspective view showing a storage shelf as storage means to which the lock device is applied. The storage shelf 10 includes a storage body 11, doors 12 a and 12 b as opening / closing members that can be opened and closed with respect to the storage body 11, and a drawer 14. More specifically, a storage space 11 a is formed in the upper half of the storage body 11, and three storage spaces 11 b, 11 c, and 11 d are formed in the lower half of the storage body 11. Double-open doors 12a and 12b are attached to the opening of the storage space 11a so as to be freely opened and closed. Further, in each of the storage spaces 11b, 11c, and 11d, a drawer portion 14 is provided so that it can be opened and closed, in other words, can be pulled out and pushed in.

  The joint portions of the doors 12a and 12b are disposed so as to overlap each other, and the other door 12b cannot be opened when the one door 12a is closed. Moreover, the handle part 13a as an operation part and the latch mechanism 13b are attached to one door 12a. The latch mechanism 13b is a mechanism that is incorporated in the door 12a and locks so as to keep the door 12a closed. As such a mechanism, a well-known mechanism or the like that engages and disengages the claw portion with the storage main body portion 11 side can be employed. The handle portion 13a is attached to the outer surface side of the door 12a so that the posture can be changed. The latch mechanism 13b performs locking and unlocking operations in conjunction with the posture change of the handle portion 13a.

  Then, by closing the doors 12a and 12b, the latch mechanism 13b is locked to the storage body 11 and the doors 12a and 12b are kept closed. In this state, by pulling the handle portion 13a, the latch mechanism 13b is unlocked and the door 12a can be opened. Moreover, the door 12b can also be opened by opening the door 12a.

  The drawer portion 14 is formed in a bowl shape that opens upward, and a handle portion 15a, an operation lever 15b as an operation portion, and a latch mechanism 15c are attached to the front surface thereof.

  The latch mechanism 15 c is a mechanism that is incorporated in a portion on the front surface side of the drawer portion 14 and locks so as to keep the drawer portion 14 in a closed state. As such a mechanism, a known mechanism or the like in which the claw portion is detachably engaged with the storage main body portion 11 side can be employed. The handle portion 15a is a gripping member provided for facilitating pulling out of the drawer portion 14, and the operation lever 15b is attached to the inside thereof so that the posture can be freely changed. The latch mechanism 15c performs locking and unlocking operations in conjunction with the change in posture of the operation lever 15b.

  And by closing the drawer part 14, the said latch mechanism 15c locks to the storage main-body part 11, and this drawer part 14 is maintained in the closed state. In this state, by grasping and operating the operation lever 15b, the latch mechanism 15c is released, and the drawer portion 14 can be pulled out by grasping the handle portion 15a.

  The storage means is not limited to the above configuration. The whole storage means may be configured to be opened and closed by a door, or may be configured to have only a plurality of drawers.

  The lock device 20 is attached to the outer surface side of the door 12a and the drawer portion 14 in the storage shelf 10 as described above. More specifically, as shown by a two-dot chain line in FIG. 1, the lock device 20 is located at a position covering the handle portion 13 a in the door 12 a and each position covering the handle portion 15 a and the operation lever 15 b in each drawer portion 14. Mounted.

  FIG. 2 is a perspective view showing the lock device and the electronic key, FIG. 3 is a perspective view showing a state in which the electronic key is inserted into the lock device, and FIG. 4 is an exploded perspective view of the main part of the lock device.

  The lock device 20 includes a device main body portion 22, a shielding member 30, and a shielding lock portion 40.

  The apparatus main body 22 is a member that is attached and fixed to the outer surfaces of the door 12a and the drawer 14. The attachment is performed by, for example, a double-sided tape or screw fixing.

  More specifically, the apparatus main body 22 includes a support frame 24 that supports the shielding member 30 so that it can be opened and closed, and a cover 25 on a base plate 23. A window portion 25W is formed in the base plate 23 and the support frame 24 in the apparatus main body portion 22, and the handle portion 13a or the operation lever 15b as an operation portion is exposed to the outside through the window portion 25W. .

  The shielding member 30 is attached to the apparatus main body 22 and is configured to cover the handle portion 13a or the operation lever 15b as an operation portion so as to be openable and closable so as to be exposed and shielded to the outside.

  More specifically, the shielding member 30 includes a substantially rectangular plate-shaped shielding main body plate portion 30a having a larger extent than the window portion 25W, and an extension extending from an intermediate portion in the longitudinal direction of the shielding main body plate portion 30a. And a plate portion 30b, and is formed in a substantially T-shaped overall shape. Further, the extended plate portion 30b is formed with a long groove 30c extending along the longitudinal direction (sliding movement direction). A locking recess 30d capable of locking a locking plate 46 described later is formed on the distal end side of the long groove 30c (the end on the opposite side of the shielding main body plate 30a with respect to the extended plate 30b). .

  The shielding member 30 is slidably held between a base plate 23 and a support frame 24 in the apparatus main body 22 between a predetermined shielding position and a predetermined opening position. With the shielding member 30 disposed at the shielding position, the shielding main body plate portion 30a is disposed at a position where the window portion 25W is closed. When the shielding member 30 is slid to the open position on the cover 25 side from this state, the shielding main body plate portion 30a is retracted to the lateral side position of the window portion 25W, and the window portion 25W is opened. In addition, the extended plate part 30b advances and retreats within the cover 25 in conjunction with the sliding movement of the shielding main body plate part 30a.

  The shielding lock unit 40 is configured to lock the shielding member 30 in a shielding state in accordance with a predetermined locking operation and to release the lock in accordance with an unlocking operation.

  More specifically, the shielding lock unit 40 includes a set unit 42 on which the electronic key 60 can be set, a lock mechanism 44, and a lock-side control board 53.

  The set part 42 has a concave shape into which the electronic key 60 can be inserted, and the electronic key 60 is held in a fixed posture in the set part 42. The set unit 42 is provided with a power receiving terminal 42 a that receives power supply from the electronic key 60 and a communication unit 42 b that performs communication with the electronic key 60. The power receiving terminal 42a is electrically connected to the lock side control board 53 and a solenoid 45 described later. The communication unit 42 b is connected to the lock side control board 53.

  A microcomputer chip or the like is mounted on the lock-side control board 53, and an electronic circuit that functions as the lock-side control unit 54 is incorporated. The lock-side control unit 54 operates by receiving power supply from the electronic key 60, and performs communication with the electronic key 60 to execute a predetermined process described later.

  The lock mechanism 44 is configured to lock or unlock the shielding member 30 according to the control of the lock side control unit 54.

  More specifically, the lock mechanism 44 includes a solenoid 45, a locking plate 46 supported so as to be movable toward and away from the solenoid 45, a movable plate 47 and a presser that move in conjunction with the insertion and removal of the electronic key 60. And a spring member 48, which is disposed in the cover 25.

  The solenoid 45 operates by receiving power supply from the electronic key 60 under the control of the lock control unit 54. The locking plate 46 is a member formed of a magnetic material that is attracted to the magnet, and is between a non-locking position close to the solenoid 45 and a locking position far from the solenoid 45 by a support rod 46a that is a slide support means. It is supported so that it can be moved close to and away from. The locking plate 46 is biased in a direction away from the solenoid 45 by a biasing means 46b such as a coil spring.

  In the normal state, as shown in FIG. 5, the urging force of the urging means 46 b causes the locking plate 46 to be disposed at the locking position and locked to the locking recess 30 d formed in the shielding member 30. ing. Thereby, the shielding member 30 is in a state that cannot be opened.

  In this state, when the solenoid 45 is energized by energization, the locking plate 46 is pulled to the non-locking position as shown in FIG. Thereby, the locking plate 46 can be moved within the long groove 30c, and the shielding member 30 can be slid to open the window portion 25W.

  The movable plate 47 is slidably disposed along with the insertion / removal of the electronic key 60. That is, when the electronic key 60 is inserted, a part 60a of the electronic key 60 and the one side piece 47a of the movable plate 47 are in sliding contact, so that the movable plate 47 resists the urging force of the urging means 47b such as a spring. To slide. A spring member 48 is attached to the movable plate 47. The distal end portion of the spring member 48 is formed in a temporary fixing portion 48a that is bent in two substantially L-shapes.

  When the electronic key 60 is inserted, the movable plate 47 and the spring member 48 move in conjunction with the electronic key 60, and as shown in FIG. 7A, the bent portion of the temporary fixing portion 48a is in the locking position. It is biased to the side of the plate 46. In this state, when the locking plate 46 is moved to the non-locking position by the excitation drive of the solenoid 45, the bent portion of the temporary locking portion 48a is engaged with the locking plate 46 as shown in FIG. It becomes like this. Thereafter, even when the solenoid 45 is in a non-excited state, the locking plate 46 is kept in the non-locking position by the engagement between the temporary locking portion 48a and the locking plate 46. Therefore, by the non-continuous one-time excitation operation by the solenoid 45, the locking plate 46 is maintained at the non-locking position, and the state where the shielding member 30 can be opened is maintained.

  When the electronic key 60 is removed from this state, the movable plate 47 and the spring member 48 are moved in the opposite direction by the biasing force of the biasing means 47b. Thereby, the engagement between the bent portion of the temporary fixing portion 48a and the locking plate 46 is released, and the locking plate 46 moves to the locking position. Thereby, the shielding member 30 is returned to the locked state.

  Further, the lock device 20 is provided with a key removal prevention plate 50 as a first key removal prevention means for preventing the electronic key 60 from coming off from the set portion 42 when the shielding member 30 is opened. The key drop prevention plate 50 has a long plate shape, and one end portion thereof is supported so as to be swingable. Further, at the other end of the key removal prevention plate 50, there are a retaining projection 51a that can be engaged with and disengaged from a retaining recess 60b formed on the electronic key 60, and a leading edge of the extended plate 30b of the shielding member 30. A slidable contact projection 51b is formed. Further, the key removal prevention plate 50 is urged in a direction in which the retaining protrusion 51 a is separated from the locking recess 60 b of the electronic key 60 by an urging means 50 a such as a torsion coil spring.

  Then, when the shielding member 30 is slid to open the window portion 25W with the electronic key 60 inserted as an unlocking operation, the leading edge of the extended plate portion 30b comes into sliding contact with the sliding contact portion 51b. . As a result, the key removal prevention plate 50 swings, the removal projection 51a engages with the locking recess 60b of the electronic key 60, and the electronic key 60 cannot be removed.

  When the shielding member 30 is slid to close the window portion 25W from the above state, the sliding contact between the extended plate portion 30b and the sliding contact projection 51b is released, and the retaining projection is caused by the biasing force of the biasing means 50a. The portion 51a is separated from the locking recess 60b of the electronic key 60, and their engagement is released. As a result, the electronic key 60 can be removed from the set unit 42 as a locking operation.

  FIG. 8 is a block diagram showing an electrical configuration of the lock device and the electronic key.

  That is, the electronic key 60 is for locking and unlocking the locking device 20 by electronic authentication, and has a key-side control unit 62, a storage unit 63, and a power source 64. The electronic key 60 is issued to the user of the storage shelf 10 in a state where the availability information corresponding to the user is written.

  The key-side control unit 62 is configured by a general microcomputer including a CPU, a ROM, a RAM, and the like, and all the arithmetic operations are elements executed by a software program stored in advance. The key side control unit 62 incorporates a storage unit 63 that stores availability information. When the electronic key 60 is set in the set unit 42, the key side control unit 62 and the lock side control unit 54 are connected via the communication unit 65. To perform predetermined processing relating to authentication. Note that the storage unit 63 may be configured separately from the key side control unit 62.

  The power source 64 is a general battery, preferably a rechargeable battery, and functions as a power source for the key-side control unit 62 and the like. In the state where the electronic key 60 is set in the setting unit 42, power is supplied to the locking device 20 side via the power supply terminal 66 and the power receiving terminal 42 a, and functions as a power source for the lock control unit 54 and the solenoid 45.

  The lock device 20 includes a lock side control unit 54 and a storage unit 55. The lock side control unit 54 is configured by a general microcomputer including a CPU, a ROM, a RAM, and the like, and all of the calculation operations are elements executed by a software program stored in advance. The lock side control unit 54 incorporates a storage unit 55 that stores predetermined information necessary for the authentication operation. When the electronic key 60 is set in the setting unit 42, communication is performed with the electronic key 60, and a predetermined process related to authentication is executed. When the authentication result is available, the switch unit 56 is temporarily turned on so that the solenoid 45 can be energized. The storage unit 55 may be configured separately from the lock side control unit 54.

  When the electronic key 60 is set on the setting unit 42, power is supplied from the power source 64 to the lock side control unit 54 via the power supply terminal 66 and the power receiving terminal 42a. Communication is performed between the key-side control unit 62 and the lock-side control unit 54 of the electronic key 60 via the communication units 42 b and 65. Here, the communication is performed by radio wave communication, optical communication, or the like, and is preferably performed by wireless communication applied to FeliCa or the like. Then, by performing communication between the key side control unit 62 and the lock side control unit 54, a predetermined authentication operation is performed regarding whether or not the storage shelf 10 can be used.

  Various well-known methods can be adopted as the authentication processing here, but one of them is the following processing. That is, the storage unit 63 of the key-side control unit 62 stores a table that associates the identification codes of the plurality of storage shelves 10 (or target storage locations) with the availability of each storage shelf 10. The lock control unit 54 stores an identification code of the storage shelf 10 (or target storage location). Then, when the electronic key 60 is set in the setting unit 42, the identification code of the storage shelf 10 is given from the lock side control unit 54 to the key side control unit 62. Thereby, the key-side control unit 62 determines whether or not the storage shelf 10 can be used with reference to the table. When it is determined that use is possible, a use permission command is given to the lock control unit 54. Upon receiving this command, the lock side control unit 54 turns on the switch unit 56 to excite the solenoid 45. Thereby, it will be in the state which the shielding member 30 can open | release.

  In addition to the above authentication process, for example, the key side control unit 62 may provide availability information to the lock side control unit, and the lock side control unit 54 may determine the availability. In short, it is possible to employ various authentication operations for determining the availability based on the communication between the key side control unit 62 and the lock side control unit 54 based on the availability information stored in the storage unit 63 on the electronic key 60 side. it can.

  The lock device 20 configured as described above is used as follows. That is, the user has an electronic key 60 issued, and the electronic key 60 is set in the set unit 42 of the lock device 20 attached to the storage shelf 10 (or storage location) desired to be used. Then, an authentication operation is performed by mutual communication between the key-side control unit 62 and the lock-side control unit 54, and when it is determined that the use is possible, the solenoid 45 is excited and the shielding member 30 can be opened. . When the shielding member 30 is opened by hand in this state, the handle portion 13a or the operation lever 15b as the operation portion is exposed to the outside, and is used by grasping them to open the door 12a or pulling out the drawer portion 14. Will be able to. In this state, the electronic key 60 is prevented from being detached by the engagement between the retaining protrusion 51 a of the key removal prevention plate 50 and the locking recess 60 b of the electronic key 60.

  Further, when the shielding member 30 is closed by hand after the use of the storage shelf 10 is finished, the engagement between the retaining protrusion 51a of the key removal prevention plate 50 and the locking recess 60b of the electronic key 60 is released. As a result, the electronic key 60 can be removed from the setting unit 42. When the electronic key 60 is removed from the set portion 42, the locking plate 46 is locked in the locking recess 30d of the shielding member 30, and the shielding member 30 returns to a state in which it cannot be opened.

  According to the lock device 20 configured as described above, the device main body portion 22 that can be attached to the outer surface side of the door 12a and the drawer portion 14 as an opening / closing member, and the handle portion that is attached to the device main body portion 22 as an operation portion. 13a or a shielding member 30 that covers the control lever 15b so as to be openable and closable so as to be exposed and shielded to the outside, and the shielding member 30 is locked in a shielding state in accordance with the locking operation and is unlocked in response to the unlocking operation Since the locking device 40 is provided, the locking device 20 can be attached to the outer surface side of the door 12a and the drawer portion 14 so that the shielding member can be opened and closed according to the locking or unlocking operation using the electronic key 60. Or a state of maintaining a shielded state. For this reason, the lock device 20 can be easily retrofitted to the storage shelf 10 to add a locking function.

  The electronic key 60 further includes an electronic key 60 for locking and unlocking the shielding lock unit 40. The electronic key 60 includes a storage unit 63 that stores use availability information, and key-side control that performs an authentication operation based on the use availability information. The shielding lock unit 40 includes a set unit 42 that can set the electronic key 60, and power is supplied from the electronic key 60 by setting the electronic key 60 in the set unit 42. In addition to performing an authentication operation by communicating with the electronic key 60 and releasing the lock of the shielding member 30 when it is available, the lock device 20 itself has a power supply 64. The electronic lock device 20 can be incorporated without incorporating the. Therefore, the lock device 20 can be easily assembled in the storage shelf 10 without laying power supply wiring or the like.

  In the present embodiment, the case where the shielding lock unit 40 performs locking / unlocking using the electronic key 60 has been described. However, the shielding lock unit 40 may be a mechanical cylinder locking mechanism or a password type locking mechanism. There may be a configuration in which the shielding member 30 is locked or unlocked according to a locking operation or an unlocking operation with respect to them.

  Further, the lock device 20 includes a key removal prevention plate 50 that prevents the electronic key 60 from coming out of the set portion 42 when the shielding member 30 is open, so that the shielding member 30 remains open. Then, the electronic key 60 cannot be removed. For this reason, it is possible to effectively prevent a situation in which the electronic key 60 is removed and left in a state where the shielding member 30 is opened.

  In addition, as a usage form of such a locking device 20, the aspect which retrofits this locking device 20 in the installation place with respect to the storage shelf 10 already installed in the predetermined installation place can be considered. Alternatively, a locking device 20 that does not incorporate the locking device 20 is manufactured in advance, and the storage shelf 10 that does not incorporate the locking device 20 is installed at a predetermined installation location according to a request from the user, or the locking device 20 A mode in which the storage shelf 10 incorporating the above is installed at a predetermined installation location is conceivable. Thereby, there exists a merit that it can respond to a user's demand etc. easily and flexibly.

Moreover, this invention is not restricted to the example added to the storage shelf 10 which does not have a lock function. For example, the present invention can be applied to a case where another lock device 20 such as an electronic authentication type key or a higher security lock is desired to be added to a storage shelf with a cylinder lock . On SL different position than the handle portion 13a and the operating lever 15b, the latch mechanism 13b, 15c in the configuration lock device or the like is incorporated to maintain the locked state is attached to those of the handle portion 13a and the operating lever 15 b The configuration as described above may be used.

{Modifications}
FIG. 9 is a block diagram showing a first modification. In the first modified example, the electronic device 60 is prevented from being detached from the set portion 42 in the state where the doors 12a and 12b as the opening / closing members and the drawer portion 14 are opened in the locking device 20. In addition, an example will be described in which a configuration for issuing a warning when a predetermined time elapses in the opened state is added.

  That is, the lock device 20B according to the first modification further includes an open / close detection sensor 110, a notification unit 112, and a key removal lock mechanism 114.

  The open / close detection sensor 110 is a sensor that detects the open / closed state of the doors 12a, 12b and the drawer portion 14, and includes an optical sensor, a microswitch, and the like. The detection output of the open / close detection sensor 110 is given to the lock side control unit 54.

  The notification unit 112 includes a light emitting means such as a light emitting diode, and a sounding body such as a speaker and a buzzer. Then, notification operations such as light emission and sound generation are performed in accordance with the drive control of the lock side control unit 54.

  The key removal lock mechanism 114 engages / disengages an engagement piece such as a claw portion with a predetermined engagement portion (such as a recess) formed in the electronic key 60 by driving an actuator such as a solenoid. Can be locked or unlocked. The operation of the key removal lock mechanism 114 is also controlled by the lock side control unit 54.

  When the lock-side control unit 54 determines that the doors 12a, 12b or the drawer unit 14 are open based on the detection output from the open / close detection sensor 110, the lock-side control unit 54 locks the key removal lock mechanism 114. The removal of the electronic key 60 is prevented. On the other hand, when determining that they are in a closed state, the lock-side control unit 54 sets the key removal lock mechanism 114 to the unlocked state so that the electronic key 60 can be removed.

  That is, here, the open / close detection sensor 110, the lock side control unit 54, and the key removal lock mechanism 114 function as second key removal prevention means. However, similar to the key removal prevention plate 50 as the first key removal prevention means, the electronic key 60 is locked or unlocked mechanically in conjunction with the open / closed state of the doors 12a, 12b and the drawer portion 14. May be.

  Further, the lock side control unit 54 sets a preset time for which the doors 12a and 12b as the opening and closing members and the drawer portion 14 remain open based on the detection output from the opening and closing detection sensor 110. When it is determined that it has exceeded, a warning is issued through the notification unit 112. That is, here, the lock side control unit 54 functions as a warning control means. Note that when the time during which the doors 12a, 12b and the drawer portion 14 remain open is the same as the preset time, either a process for issuing a warning or a process for not issuing a warning may be performed.

  According to the first modification, the electronic key 60 cannot be removed when the doors 12a, 12b and the drawer portion 14 are opened. Therefore, only the shielding member 30 is closed and the electronic key 60 is closed. A situation in which the key 60 is removed can be prevented.

  In addition, a warning is issued when it is determined that the door 12a, 12b or the drawer portion 14 is opened and the predetermined time is exceeded, so that it is effective that the doors 12a, 12b and the drawer 14 are left open for a long time. Can be prevented.

  FIG. 10 is a perspective view showing a second modification, and FIG. 11 is a bottom view showing the second modification.

  In the lock device 20 </ b> C according to the second modification, two groove portions 210 are formed on the bottom surface of the device main body portion 22. Each groove part 210 is open on both side parts of the apparatus main body part 22.

  The back surface (see the lane portion in FIG. 11) of the apparatus main body 22 is bonded to the outer surfaces of the doors 12a and 12b and the drawer portion 14 with double-sided tape, an adhesive, or the like.

  Then, with the apparatus main body 22 bonded to the outer surfaces of the doors 12a and 12b and the drawer part 14, the blade tip of a flathead screwdriver or other rod-shaped tool is inserted into the groove 210 from both sides of the apparatus main body 22. Then lift the base end. Then, on the principle of leverage, the apparatus main body 22 is peeled off from the outer surfaces of the doors 12a and 12b and the drawer 14.

  In addition, in order to prevent unauthorized removal of the locking device 20B, it is preferable to seal the opening 212 of the groove portion 210 with a seal or the like as shown by a two-dot chain line in FIG.

  FIG. 12 is a plan view showing a third modification.

  In the lock device 20 </ b> D according to the third modification, attachment tools 220 are attached in the vicinity of the four corners of the device main body 22. The fixture 220 has, for example, a cylinder mechanism, and holds the apparatus body 22 and the doors 12a, 12b or the drawer 14 in a sandwiched manner before and after the cylinder lock by inserting a key into the keyhole and turning it. It has a configuration.

  In these second and third modified examples, when the apparatus main body 22 is removed from the doors 12a, 12b or the drawer 14 using the above tools, keys, etc., the handle 13a or the operating lever 15b as the operating part is removed. Exposed to the direction. For this reason, even if a malfunction such as a failure occurs in the locking devices 20C and 20D and the shielding member 30 does not open, the device main body 22 is forcibly removed and the storage shelf 10 can be easily dealt with. Available.

  In the second modification, the groove portion 210 functions as an emergency release means, and in the third modification, the fixture 220 functions as an emergency release means.

It is a perspective view which shows the storage shelf to which a locking device is applied. It is a perspective view which shows a locking device and an electronic key. It is a perspective view which shows the state which inserted the electronic key in the locking device. It is a principal part disassembled perspective view of a locking device. It is a figure which shows the state which the latching plate has latched in the latching recessed part of a shielding member. It is a figure which shows the state which a latching plate is located in the long groove of a shielding member. FIG. 7A is a diagram showing a state in which the locking portion of the spring member is urged by the locking plate, and FIG. 7B shows a state in which the locking portion of the spring member is engaged with the locking plate. FIG. It is a block diagram which shows the electrical structure of a locking device and an electronic key. It is a block diagram which shows the electric constitution of the locking device which concerns on a 1st modification. It is a perspective view which shows the locking device which concerns on a 2nd modification. It is a bottom view which shows the locking device which concerns on a 2nd modification. It is a top view which shows the locking device which concerns on a 3rd modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Storage shelf 12a, 12b Door 13a Handle part 13b Latch mechanism 14 Drawer part 15b Operation lever 15c Latch mechanism 20, 20B, 20C, 20D Locking device 22 Apparatus main body part 25W Window part 30 Shielding member 40 Shielding lock part 42 Set part 44 Lock Mechanism 45 Solenoid 50 Key removal prevention plate 54 Lock side control unit 55 Storage unit 60 Electronic key 60b Locking recess 62 Key side control unit 63 Storage unit 64 Power supply 110 Open / close detection sensor 112 Notification unit 114 Key removal lock mechanism 210 Groove unit 220 Mounting tool

Claims (6)

A storage body part; an opening / closing member that is openable / closable with respect to the storage body part; a latch mechanism that locks the opening / closing member so as to be kept in a closed state; A locking device that is attached to a storage means having an operation unit for locking and unlocking operation,
An apparatus body that can be attached to the outer surface of the opening and closing member;
Attached to the apparatus main body, that the user to shield the possible to expose the operation portion to the outside and the operation portion so that it can be unlocked operate the latching mechanism grabs the operation portion from the outside A shielding member that covers the operation unit in an openable and closable manner as possible;
A shielding locking means for locking the shielding member in a shielding state according to a locking operation, and releasing the locking according to an unlocking operation;
A locking device comprising: The locking device according to claim 1,
A key for locking and unlocking the shielding locking means;
The key includes a storage unit that stores availability information, a control unit that performs an operation related to authentication based on the availability information, and a power source.
The shielding lock means has a set portion capable of setting the key, operates by receiving power supply from the key when the key is set in the set portion, and communicates with the key. A lock device that performs an authentication operation and releases the lock of the shielding member when it is determined that the use is possible. The locking device according to claim 2,
The locking device further includes first key removal prevention means for preventing the key from coming off from the set portion when the shielding member is opened. The locking device according to claim 2 or claim 3,
A locking device further comprising second key removal prevention means for preventing the key from coming off from the set portion in a state where the opening / closing member is opened. A locking device according to any one of claims 1 to 4,
A locking device further comprising emergency release means for allowing the operation portion to be exposed to the outside regardless of opening and closing of the shielding member. The locking device according to any one of claims 1 to 5,
An open / close detection sensor for detecting an open / close state of the open / close member, and a warning through an informing means when it is determined that the opening time of the open / close member exceeds a predetermined time based on an output of the open / close detection sensor A lock device further comprising warning control means for emitting

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