JP4925811B2 - Locking device and lockable storage device - Google Patents

Description

  The present invention relates to a technique for adding a locking / unlocking function to a storage device 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 with respect to the drawer, as disclosed in Patent Document 1, a latch mechanism is attached to the main body of the storage device, 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 in consideration of the opening / closing mode of the drawer and the relative positional relationship between the main body and the drawer of the storage device. For this reason, an attachment location will be limited to the main body of a storage device.

  Then, the subject of this invention is providing the technique which can be retrofitted easily besides the main body of a storage device other than the main body of a storage device.

In order to solve the above-described problems, the locking device includes a storage main body, an opening / closing member that is openable / closable with respect to the storage main body, a latch mechanism that locks the opening / closing member in a closed state, A locking device that is provided on an outer surface side of an opening / closing member and is attached to a storage device having an operation unit for locking and unlocking the latch mechanism, the device main body being attachable to the outer surface side of the opening / closing member and parts, in the apparatus body, front SL operating unit unlock preventing position for regulating the release of the lock by and the stopper member attached movable between an unlocked allowable position for allowing the release, the locking operation And a stopper lock portion that locks the stopper member at the unlocking restricting position in response to the unlocking operation and unlocks the stopper member in response to the unlocking operation.

The operation unit is configured to be capable of unlocking the latch mechanism by changing the posture from the first operation posture to the second operation posture .

The stopper member is disposed close to or in contact with the operation unit at the unlocking restriction position, and contacts the operation unit to restrict the operation unit from changing its posture to the second operation posture. It is set as the structure which has a contact part .

In order to solve the above-described problem, the lock device includes a storage main body, an open / close member that is openable and closable with respect to the storage main body, and a latch mechanism that locks the open / close member in a closed state. A locking device that is provided on an outer surface side of the opening / closing member and is attached to a storage device having an operation unit for locking and unlocking the latch mechanism, and is attachable to the outer surface side of the opening / closing member An apparatus main body, a stopper member attached to the apparatus main body so as to be movable between a lock release restricting position for restricting unlocking by the latch mechanism and an unlocking permitting position for permitting the unlocking; A stopper lock portion that locks the stopper member at the unlocking restriction position according to an operation and releases the lock of the stopper member according to an unlocking operation. .
In addition, the latch mechanism includes a locking posture that locks the opening / closing member so as to be engaged with an engaged portion of the storage main body portion and keep the opening / closing member in a closed state at a peripheral edge portion of the opening / closing member. When the latch member has a latch engaging portion whose posture can be changed between a non-locking posture in which the engagement with the engaged portion is released and the opening and closing member can be opened, the stopper member The latch engagement portion that extends from the outer surface to the latch engagement portion through the space between the peripheral edge portion of the opening / closing member and the storage main body portion, and that is in the locked position at the unlocking restriction position, is in the unlocked position. to restrict the posture changed to, as a structure in which the latching portion is retracted from the unlock preventing position by the lock release permitting position is permitted from the locking position to the attitude changed to the unlocked position Yes.

  The storage device with a lock includes a storage device having an opening / closing member that can be freely opened and closed with respect to the storage main body, and any of the above-described locking devices attached to the opening / closing member.

  According to the locking device of the present invention, the main body of the device that can be attached to the outer surface side of the opening / closing member, the unlocking restricting position for restricting the unlocking by the latch mechanism or the operating unit, and the release of the device main body. A stopper member that is movably mounted between a lock release permitting position and a lock operation, and the stopper member is locked at the lock release restriction position according to a locking operation, and the stopper member according to an unlocking operation. Since it has a stopper lock part that releases the lock, the lock device is attached to the outer surface side of the opening and closing member, thereby restricting the release of the lock by the latch mechanism or the operation part according to the locking or unlocking operation. Or a state in which the release is allowed. For this reason, this locking device can be easily retrofitted to the storage device having the latch mechanism and the operation unit, and a locking function can be added.

  The stopper member restricts the operation portion of the first operation posture from changing the posture to the second operation posture at the lock release restriction position, and retracts from the lock release restriction position at the lock release permission position. Thus, a locking function can be added to the operation unit by allowing the operation unit to change the posture from the first operation posture to the second operation posture.

  When the stopper member has a contact portion that contacts the operation portion at the unlocking restriction position and restricts the operation portion from changing the posture to the second operation posture, the stopper member stops at the unlocking restriction position. The member can control the posture change by pressing the operation unit without rattling.

  Further, the stopper member extends from the outer surface of the opening / closing member to the latch engaging portion through a gap between the peripheral portion of the opening / closing member and the storage body portion, and is locked at the unlocking restriction position. The latch engaging portion is restricted from changing the posture to the unlocked position, and the latch engaging portion is retracted from the lock release restricting position at the unlocking allowable position, and the latch engaging portion is changed from the locked posture to the unlocked posture. A lock function can be added to the latch mechanism by adopting a configuration that allows the change. Further, since the stopper member directly contacts and locks the latch engaging portion of the latch mechanism, the locked state can be more reliably maintained.

  Hereinafter, the lock device and the lockable storage device according to the embodiment will be described.

<1. Overall Configuration of Locked Storage Device>
First, the overall configuration of a lockable storage device to which the present lock device is applied will be described. FIG. 1 is a perspective view showing the overall configuration of the lockable storage device, FIG. 2 is an enlarged view of a main part of the storage device, and FIG. 3 is a sectional view taken along line III-III in FIG.

  The lockable storage device 10 includes a cabinet 12 as a storage device and a lock device 20.

  The cabinet 12 includes a storage main body 14, doors 16 a and 16 b serving as opening / closing members that can be opened and closed with respect to the storage main body 14, and a drawer 18. More specifically, a storage space 14 a is formed in the upper half of the storage main body 14, and three storage spaces 14 b, 14 c, 14 d are formed in the lower half of the storage main body 14. Double-open doors 16a and 16b are attached to the opening of the storage space 14a so as to be freely opened and closed. Further, in each of the storage spaces 14b, 14c, 14d, a drawer 18 is provided so as to be opened and closed, in other words, can be pulled out and pushed in.

  When the doors 16a and 16b are closed, the joints of the doors 16a and 16b are arranged so as to overlap each other, and when one door 16a (the right side in FIG. 1) is closed, the other The door 16b (left side in FIG. 1) cannot be opened. Further, a handle portion 17a as an operation portion and a latch mechanism 17b are attached to one door 16a.

  The latch mechanism 17b is a mechanism that is incorporated in the door 16a and locks to keep the door 16a closed. Here, the latch mechanism 17b includes a latch shaft portion 17c that is rotatably attached along the vertical direction of the door 16a, and a latch engagement portion 17d that is attached to the upper end portion and the lower end portion of the latch shaft portion 17c. Have. The latch engaging portion 17d may be provided only at the upper end portion or the lower end portion of the latch shaft portion 17c. The latch engaging portion 17d has a hook shape, and its base end portion is connected and fixed to the latch shaft portion 17c. The latch engaging portion 17d has a locking posture that protrudes from the lower edge, which is the peripheral edge of the door 16a, toward the storage main body 14 with the latch shaft portion 17c as the center (see FIG. 3). The posture is freely changeable between the unlocked posture rotated so as to retreat from the posture to the door 16a side (see arrow A in FIG. 3). In the locking posture, the latch engaging portion 17d is the storage main body portion 14 and engages with the edge portion of the engagement hole portion 14h as an engaged portion formed in the lower portion of the storage space 14a, and the door 16a is engaged. Lock to keep closed. Further, by changing the posture from this state to the non-locking posture, the engagement between the latch engagement portion 17d and the edge of the engagement hole portion 14h is released, and the door 16a can be opened.

  A proximal end portion of the handle portion 17a is connected and fixed to the latch shaft portion 17c, and a distal end portion projects into a recess 16c formed on the outer surface of the door 16a. The handle portion 17a has a first operation posture (see the handle portion 17a indicated by a solid line in FIG. 3) that has entered the recess 16c with the latch shaft portion 17c as a center, and a second that is drawn outward from the recess 16c. The posture can be freely changed between the operation posture (see the handle portion 17a indicated by a two-dot chain line in FIG. 3). The handle portion 17a is biased from the second operation posture toward the first operation posture by a coil spring 17s as a biasing member interposed between the inner surface of the door 16a and the handle portion 17a in a compressed manner. . Then, the latch shaft portion 17c rotates by changing the posture so that the handle portion 17a is pulled out from the first operation posture toward the second operation posture against the urging force of the coil spring 17s, and the latch engagement portion 17d changes the posture from the locked posture to the unlocked posture, and the latch mechanism 17b performs the unlocking operation. Thereby, the door 16a can be opened. Further, the door 16b can be opened by opening the door 16a.

  Thereafter, when the operation force to pull out the handle portion 17a is removed, the handle portion 17a is changed from the second operation posture to the first operation posture by the biasing force of the coil spring 17s, and the latch shaft portion 17c is rotated. The latch engagement portion 17d changes its posture from the unlocked posture to the locked posture, and the latch mechanism 17b can be locked. That is, in conjunction with the operation of the handle portion 17a, the latch mechanism 17b performs a lock operation and a lock release operation.

  Normally, with the door 16a opened, the operating force applied to the handle portion 17a is removed, and the latch engaging portion 17d changes its posture from the unlocked posture to the locked posture. When the door 16a is closed, the latch engaging portion 17d contacts the edge of the engaging hole portion 14h, temporarily changes the posture to the non-locking posture, and then changes the posture to the locked posture. The door 16a is kept closed by engaging with the edge of the portion 14h. In other words, the locking operation of the latch mechanism 17b includes not only an operation in which the latch engaging portion 17d is actually locked but also an operation that can be locked.

  Moreover, the drawer | drawing-out part 18 is formed in the bowl shape opened upwards, and has the handle part 19a, the operation lever 19b, and the latch mechanism 19c.

  The operation lever 19b is a member corresponding to the handle portion 17a, and the latch mechanism 19c is a rotatable latch shaft portion 19e and an engagement hole portion (here, the storage main body portion 14 side) in the same manner as the latch mechanism 17b. And a latch engaging portion 19d that can be freely engaged and disengaged. The operation lever 19b and the latch mechanism 19c are configured and operated in the same manner as the handle portion 17a and the latch mechanism 17b, so that the drawer portion 18 is kept closed and can be opened. That is, by closing the drawer 18, the latch mechanism 19 c is locked and the drawer 18 is kept closed. Further, in this state, by grasping and operating the operation lever 19b, the locked state of the latch mechanism 19c is released, and the drawer portion 18 can be pulled out by grasping the handle portion 19a. Further, by removing the operating force of the operating lever 19b, the latch mechanism 19c can be locked.

  The lock device 20 is attached to the outer surfaces of the door 16a and the drawer 18 in the cabinet 12 as described above. Then, the locking / unlocking function can be added to the cabinet 12 by restricting or permitting the unlocking by the latch mechanisms 17b and 19c. Here, as shown by a two-dot chain line in FIG. 1, as the locking device 20, the one attached to the handle portion 17a in the door 16a and the operation lever 19b in each drawer portion 18 and the latch mechanisms 17b and 19c are latched. Some are attached in the vicinity of the engaging portion 19d.

<2. Configuration of the locking device>
Here, regarding the locking device, there are two forms of the locking device 20 attached in the vicinity of the operating portion, that is, the handle portion 17a of the door 16a and the operating lever 19b of each drawer portion 18, and the latch engagement of the latch mechanisms 17b and 19c. One form of the locking device 20 attached in the vicinity of the part 19d will be described.

<2-1. Form of first locking device assembled to operation unit>
<2-1a. Overall configuration of the locking device>
A lock device according to a first form assembled to the operation unit will be described. 4 is a perspective view showing the locking device, FIG. 5 is a front view showing the locking device, and FIG. 6 is a plan view showing the locking device.

  The lock device 120 includes a device main body 122, a stopper member 140, and a stopper lock portion 160.

  The apparatus main body 122 is a member configured to be attachable to the outer surface of the door 16a as the opening / closing member or the drawer 18 and moves the stopper member 140 between an unlocking restriction position and an unlocking permission position described later. Supports freely.

  More specifically, the apparatus main body 122 includes a plate member 124 and a pair of guide rails 126.

  The plate-like member 124 is formed as a substantially square plate-like member, and a substantially rectangular window 125 is formed at one end thereof, and a position restricting hole 124b is formed at a substantially intermediate portion. . The position restricting hole 124b is used as a configuration for the stopper lock portion 160 to lock the stopper member 140 at the unlock release restricting position. The configuration related to this lock will be described in detail later.

  The pair of guide rails 126 are members that support the stopper member 140 movably between the unlocking restriction position and the unlocking permission position on the plate-like member 124. More specifically, the guide rail 126 is formed as a rod-like member, and is fixed to both side portions (upper and lower both side portions in FIG. 5) of the plate-like member 124 along the edges by screwing or the like. In addition, guide grooves (not shown) extending along the longitudinal direction are formed on surfaces of the pair of guide rails 126 facing each other, and guides (not shown) formed on both sides of the stopper member 140 are formed. When the protrusion is movably fitted in the guide groove, the stopper member 140 is supported movably between the two positions.

  As described above with respect to the apparatus main body 122, the stopper member 140 is a lock release restricting position (a position indicated by a two-dot chain line in FIG. 4) that restricts the unlocking by the handle 17a (or the operation lever 19b). 5 and 6) and a lock release allowable position (a position indicated by a solid line in FIGS. 4 to 6) allowing release by the handle portion 17 a (or the operation lever 19 b). It is mounted so as to be movable.

  More specifically, the stopper member 140 has a substantially bowl-shaped main body 142 and an extending stopper 144 extending outward from the main body 142. The main body portion 142 and the extension stopper portion 144 have a dimension that is smaller (slightly smaller here) than the distance between the pair of guide rails 128 in the direction connecting the pair of guide rails 126. It is possible to move between 128 in their extending direction. The extension stopper portion 144 is formed in a shape that can be divided into two forks on the distal end side. Then, in a state where the stopper member 140 has moved to the unlocking restriction position, the stopper member 140 extends outward from the apparatus main body 122. On the other hand, the extension amount of the extension stopper portion 144 from the apparatus main body portion 122 is relatively small in a state where the stopper member 140 is moved to the unlocking allowable position. Then, with the stopper member 140 moved to the unlocking restriction position, the distal end portion of the extended stopper portion 144 is disposed at a position where it contacts or is close to the outside of the handle portion 17a (or the operation lever 19b). This restricts the handle portion 17a (or the operation lever 19b) in the first operation posture from changing to the second operation posture (two-dot chain line in FIG. 4, two-dot chain line in FIGS. 5 and 6 and diagonal lines). The position indicated by In addition, in a state where the stopper member 140 is moved to the unlocking allowable position so as to be retracted from the unlocking restriction position, the distal end portion of the extension stopper 144 is retracted from the handle portion 17a (or the operation lever 19b), and these handles are removed. The portion 17a (or the operation lever 19b) is allowed to change its posture from the first operation posture to the second operation posture (see the position indicated by the solid line in FIGS. 4 to 6).

  The apparatus main body 122 is a position where the stopper member 140 realizes the above in each of the unlocking restriction position and the unlocking permission position, and is the outer surface of the door 16a (or the drawer 18) and the handle 17a (or the operation lever). 19b) at the side position. The apparatus main body 122 is fixed to the front surface of the door 16a or the drawer 18 in such a manner that it cannot be easily removed, such as a strong adhesive, a strong adhesive tape, screwing, welding or the like.

  The stopper lock portion 160 is configured to lock the stopper member 140 at the unlocking restriction position according to the locking operation, and to release the lock of the stopper member 140 according to the unlocking operation. A specific configuration example will be described in detail below.

<2-1b. Configuration related to stopper lock portion of locking device>
7 is a schematic front view showing the stopper lock portion, FIG. 8 is a schematic cross-sectional view showing the lock mechanism in the locked state, and FIG. 9 is a schematic cross-sectional view showing the lock mechanism in the unlocked state. 10 is an explanatory view showing a lock mechanism.

  The stopper lock portion 160 is incorporated in the main body portion 142 of the stopper member 140. Here, an example in which the stopper lock unit 160 is an electronic authentication lock that performs locking and unlocking based on authentication information from the electronic key 180 will be described.

  More specifically, the stopper lock unit 160 includes a set unit 161 on which the electronic key 180 can be set, a lock mechanism unit 164, and a lock side control unit 176.

  The set portion 161 has a concave shape in which the electronic key 180 can be inserted and removed, and the electronic key 180 is held in a predetermined posture in the set portion 161. In the set unit 161, a contact terminal 163 that is electrically connected to the lock-side control unit 176 and can contact the connection terminal 162 on the electronic key 180 side is provided. Then, by setting the electronic key 180 in the setting unit 161, both contact terminals 162 and 163 are electrically connected, and communication between the lock side control unit 176 and the electronic key 180 becomes possible. The electronic key 180 and the lock side control unit 176 may be configured to perform wireless communication.

  The lock side control unit 176 has a control board on which an electronic circuit is formed so as to function as a lock side control unit using a microcomputer chip or the like. The lock side control unit 176 operates by receiving power from a power source 178 built in the stopper lock unit 160, and performs communication with the electronic key 180 to execute a predetermined process described later.

  The lock mechanism unit 164 is configured to lock or unlock the stopper member 140 according to the control of the lock side control unit 176.

  More specifically, the lock mechanism unit 164 moves the lock unit 168 in response to the drive of the drive unit 166, the lock unit 168 disposed so as to be freely retractable from the stopper member 140, and the drive unit 166. And a driving force transmission piece 170.

  The drive portion 166 is configured such that the rod portion 166b can be withdrawn / retracted from a drive main body portion 166a fixed in the stopper member 140, and drives the rod portion 166b to be withdrawn / retracted according to the control of the lock side control portion 176. . A flange portion 166c is attached to the distal end portion of the rod portion 166b. Here, the drive unit 166 is configured by a plunger-type solenoid, and the rod unit 166b is driven to retract by passing a current from the power source 178 to the drive unit 166.

  The lock portion 168 is formed in a substantially cylindrical member, and can be moved out and back from the back surface of the stopper member 140, that is, the side surface facing the plate member 124. Here, a bracket 148 made of resin or the like is fixed in the stopper member 140, and a round hole portion 148 h penetrating the back surface of the stopper member 140 is formed in the bracket 148. The lock portion 168 is inserted and disposed in the round hole portion 148h, so that the lock portion 168 includes a lock position in which one end portion protrudes from the back surface of the stopper member 140, and a non-lock position that is retracted from the back surface. You can leave and leave between. The position where the lock portion 168 is disposed is a position where the stopper member 140 is disposed in the position restricting hole 124b in a state where the stopper member 140 is in the lock release restricting position. When the lock member 168 is protruded from the back side of the stopper member 140 with the stopper member 140 moved to the unlocking restriction position, the lock portion 168 engages with the peripheral edge of the position restriction hole 124b. Then, the stopper member 140 is locked at the unlocking restriction position by engaging with the apparatus main body 122. Further, in this state, when the lock portion 168 is retracted from the back side of the stopper member 140, the engagement between the lock portion 168 and the peripheral edge portion of the position restricting hole 124b is released, and the stopper member 140 is in the lock release restricting position. It becomes possible to move toward the unlocking allowable position.

  Further, a concave portion 168 h that receives the driving force from the driving force transmitting piece 170 is formed on one side portion in the substantially intermediate portion in the axial direction of the lock portion 168.

  The driving force transmission piece 170 is an element that transmits the driving force of the driving unit 166 to the lock unit 168 and moves the lock unit 168.

  More specifically, the driving force transmission piece 170 is a member formed by appropriately punching and bending a metal plate or the like, and is formed in a substantially L-shaped member. A driving source side connecting piece 171 that can be connected to the rod portion 166 b of the driving portion 166 extends at one end portion of the driving force transmitting piece 170, and a locking portion 168 is provided at the other end portion of the driving force transmitting piece 170. A drive destination side connecting piece 172 that can be connected is extended. The driving source side connecting piece 171 is formed with a substantially U-shaped slit portion 171b, and the driving source side connecting piece 171 and the rod portion 166b are inserted by inserting the rod portion 166b into the slit portion 171b. Connected. The drive destination side connecting piece 172 is formed in a small piece shape that can be inserted into the concave portion 168h of the lock portion 168, and the drive destination side connecting piece 172 is driven by being inserted into the concave portion 168h of the lock portion 168. The front side connection piece 172 and the lock part 168 are connected.

  The driving force transmission piece 170 swings to the bracket 148 via the shaft portion in a posture in which the driving source side connecting piece 171 is connected to the rod portion 166b and the driving destination side connecting piece 172 is connected to the lock portion 168. It is supported freely. Further, a torsion coil spring 173 is attached to the shaft portion as urging means for urging the lock portion 168 toward the lock position.

  In the normal state, the lock portion 168 is biased toward the lock position by the biasing force of the torsion coil spring 173 (see FIG. 8). In this state, when the drive portion 166 is energized to retract the rod portion 166b, the drive force is transmitted to the lock portion 168 via the drive force transmission piece 170 and is directed to the unlocked position with respect to the lock portion 168. A force acts (see FIG. 9). As a result, the stopper member 140 can move toward the unlocking allowable position.

<2-1c. Electrical configuration of the locking device>
FIG. 11 is a block diagram showing an electrical configuration of the lock device and the electronic key.

  That is, the electronic key 180 is for locking and unlocking the locking device 120 by electronic authentication, and has a key-side control unit 182 and a storage unit 184. The electronic key 180 is issued to the user of the lockable storage device 10 in a state in which the unlockability information of each lock device 120 corresponding to the user is written.

  The key-side control unit 182 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 182 incorporates a storage unit 184 that stores unlocking permission / inhibition information. When the electronic key 180 is set in the setting unit 161, the lock-side control is performed via the contact terminals 162 and 163. Communication with the unit 176 is performed, and predetermined processing related to authentication is executed. Note that the storage unit 184 may be configured separately from the key-side control unit 182.

  The lock device 120 includes a lock side control unit 176 and a storage unit 176a. The lock side control unit 176 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 lock side control unit 176 incorporates a storage unit 176a that stores predetermined information necessary for the authentication operation. The storage unit 176a and the lock side control unit 176 may be configured separately.

  When the electronic key 180 is set in the setting unit 161, communication is performed with the electronic key 180, and the lock-side control unit 176 or the key-side control unit 182 or a predetermined one related to authentication in cooperation with them. Execute the process. When the authentication result is available, the switch unit 177 is turned on and the current from the power source 178 is supplied to the drive unit 166. As a result, the drive portion 166 drives the lock portion 168 to the unlocked position, and the stopper member 140 can move from the unlock release restricting position toward the unlock release allowable position.

  In the present embodiment, the configuration in which the stopper lock unit 160 has a built-in power supply is described. However, the authentication operation and the drive unit 166 are driven by the power supply from the electronic key 180. May be. In this case, either a contact type or a non-contact type power feeding method may be used.

  Various well-known methods can be adopted as the authentication processing here, but one of them is the following processing. That is, in the storage unit 184 of the key-side control unit 182, with respect to a certain user, the identification codes of the plurality of doors 16 a and the drawer units 18 (that is, the storage location where the lock device 120 is attached) and whether or not each can be used. Is stored. The lock side control unit 176 stores an identification code for each storage location. When the electronic key 180 is set, an identification code is given from the lock side control unit 176 to the key side control unit 182. Thereby, the key-side control unit 182 determines whether or not the target storage location 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 side control unit 176. In response to this command, the lock side control unit 176 turns on the switch unit 177 and operates the drive unit 166 to move the lock unit 168 to the unlocked position. As a result, the stopper member 140 becomes movable toward the unlocking allowable position.

  In addition to the above authentication processing, for example, the key side control unit 182 may provide availability information to the lock side control unit 176, and the lock side control unit 176 may determine whether the usage is possible. In short, there are various types of electronic authentication locks, such as determining whether or not the electronic authentication lock can be used through communication between the key-side control unit 182 and the lock-side control unit 176 based on the use / non-use information stored in the storage unit 184 on the electronic key 180 side. Includes an electronic authentication configuration.

  Such a lock device may be attached to the cabinet 12 as a storage device from the beginning, or may be retrofitted to the existing cabinet 12.

<2-1d. Storage device with lock, operation of lock device, etc.>
Operations of the lock device 120 and the lockable storage device 10 configured as described above will be described together with their use procedures.

  First, in the initial state, the doors 16a and 16b and the drawer part 18 are closed. Moreover, the stopper member 140 of the locking device 120 attached to each is in the state moved to the unlocking restriction position. In this state, the distal end portion of the extension stopper portion 144 is disposed at a position in contact with or close to the outside of the handle portion 17a (or the operation lever 19b), and the handle portion 17a ( Alternatively, the posture of the operation lever 19b) cannot be changed from the first operation posture to the second operation posture.

  In the initial state, when the electronic key 180 is set on the set unit 161 and it is determined that the electronic key 180 is not usable as a result of the authentication operation, the lock unit 168 is kept in the unlocked position, and the stopper member 140 cannot be moved. . Therefore, the user cannot use the doors 16a and 16b and the drawer portion 18 by opening them.

  On the other hand, if it is determined as a result of the authentication operation that use is possible, the drive unit 166 is energized, and the lock unit 168 moves toward the unlocked position (see FIG. 9). As a result, the stopper member 140 becomes movable from the unlocking restriction position toward the unlocking permission position.

  In this state, the user moves the stopper member 140 toward the unlocking allowable position. Then, the extension stopper portion 144 is retracted from the handle portion 17a (or the operation lever 19b), and the posture of the handle portion 17a (or the operation lever 19b) can be changed from the first operation posture to the second operation posture. Accordingly, the user operates the handle portion 17a (or the operation lever 19b) to change the posture to the second operation posture, releases the lock by the latch mechanism 17b, and opens the doors 16a, 16b and the drawer portion 18. It becomes available.

  When the user ends the use, the stopper member 140 is moved from the unlocking allowable position to the unlocking restricting position. When the stopper member 140 is positioned at the unlocking restriction position, the locking portion 168 is moved to the unlocked position by the urging force of the torsion coil spring 173, and one end thereof is engaged with the position restriction hole 124b. Is locked in the unlocking restriction position. Then, when the electronic key 180 is removed, the initial state is restored.

  According to the lock device 120 and the lock storage device 10 configured as described above, the device main body portion 122 that can be attached to the outer surface of the door 16a (or the drawer portion 18) as an opening / closing member, the device main body portion 122, and the handle portion. A stopper member 140 movably mounted between a lock release restricting position for restricting unlocking by the lock 17a (or the operation lever 19b) and a lock releasing permitting position for permitting the release, and a stopper member corresponding to the locking operation And a stopper lock portion 160 that locks the stopper 140 at the unlocking restriction position and unlocks the stopper member 140 in accordance with the unlocking operation. For this reason, the lock device 120 is attached to the outer surface of the door 16a (or the drawer portion 18), so that the lock release by the handle portion 17a (or the operation lever 19b) is regulated according to the locking or unlocking operation, or The release can be allowed. The lock device 120 can be easily retrofitted to the cabinet 12 as a storage device to add a locking / unlocking function.

  In particular, since the lock device 120 can be additionally installed in the vicinity of the handle portion 17a for release operation (or the operation lever 19b) that is operated in accordance with the opening operation of the door 16a or the drawer portion 18, the locking and unlocking operation and opening are performed. The operation can be performed nearby, which is convenient.

<2-2. Form of second locking device assembled to operation unit>
A lock device according to a second form assembled to the operation unit will be described. FIG. 12 is a perspective view showing the locking device, FIG. 13 is a front view showing the locking device, and FIG. 14 is a plan view showing the locking device. In the description of the lock device 220, the same components as those of the lock device 120 will be denoted by the same reference numerals, and the description thereof will be omitted, and differences will be mainly described.

  The locking device 220 has the following stopper member 240 instead of the stopper member 140. That is, the stopper member 240 has a lock release restriction position (see a position indicated by a two-dot chain line in FIGS. 12 to 14) for restricting the lock release by the handle portion 17 a (or the operation lever 19 b) with respect to the apparatus main body portion 122. , And a lock release allowing position (see a position shown by a solid line in FIGS. 12 to 14) allowing release by the handle portion 17a (or the operation lever 19b).

  More specifically, the stopper member 240 includes a main body portion 242 having the same configuration as the main body portion 142 and an extending stopper portion 244 that extends outward from the main body portion 242. The extension stopper 244 has a narrower shape than the main body 142, and the tip thereof is bent toward the plate-like member 124, and is positioned close to the outer surface of the door 16a (or the drawer 18). Moving. Further, a recessed portion 244h is formed at the distal end portion of the extending stopper portion 244, which is recessed on the opposite side of the outer surface of the door 16a (or the drawer portion 18). A contact portion 245 is pivotably fixed in the recess 244h via a shaft portion 246. The swing axis of the contact portion 245 is substantially parallel to the outer surface of the door 16a (or the drawer portion 18) and substantially parallel to the moving direction of the stopper member 240. In addition, a contact recess 245a that can contact the tip of the handle 17a (or the operation lever 19b) is formed at the tip of the contact 245.

  The stopper member 240 is fixed to the outer surface of the door 16a (or the drawer portion 18) in a posture and position in which the tip of the abutting portion 245 is movable in a recess 16c or the like formed on the outer surface of the door 16a. Yes. Then, when the stopper member 240 is moved from the unlocking permission position to the unlocking restriction position, the abutting recess 245a at the tip of the abutting part 245 is moved to the tip of the handle part 17a (or the operation lever 19b). Abut. When the stopper member 240 is further moved to the unlocking restriction position side, the contact portion 245 tilts around the swing axis. In this inclined posture, the restricting protrusion 244b formed at the distal end portion of the extension stopper 244 comes into contact with the proximal end portion of the contact portion 245 and restricts the contact portion 245 from further tilting. Thereby, the posture change of the handle portion 17a (or the operation lever 19b) from the first operation posture to the second operation posture is restricted.

  According to this locking device 220, the stopper member 240 abuts against the distal end portion of the handle portion 17a (or the operation lever 19b) as the operation portion at the lock release restriction position and restricts the posture change of the handle member 17a to the second operation posture. Therefore, the handle portion 17a (or the operation lever 19b) can be regulated so as not to be rattled and firmly changed at the unlocking restriction position.

<2-3. Form of lock device assembled to latch mechanism>
The lock device according to the embodiment assembled to the latch mechanism will be described. 15 is a perspective view showing the locking device, FIG. 16 is a front view showing the locking device, FIG. 17 is a side view showing the locking device, and FIG. 18 is a plan view showing the locking device. is there. In the description of the lock device 320, the same components as those of the lock device 120 will be denoted by the same reference numerals, and the description thereof will be omitted, and differences will be mainly described.

  The locking device 320 has the following stopper member 340 instead of the stopper member 140. That is, the stopper member 340 extends between the peripheral portion of the door 16a (or the drawer portion 18) as the opening / closing member and the storage main body portion 14 toward the latch engagement portion 17d (or 19d), and is locked. The latch engagement portion 17d (or 19d) in the locked posture at the release restriction position is restricted from changing the posture to the non-lock posture, and the latch engagement portion 17d (or 19d) is retreated from the lock release restriction position at the unlock release allowable position. ) Is allowed to change the posture from the locked posture to the non-locked posture.

  More specifically, the stopper member 340 includes a main body 342 having the same configuration as the main body 142 and a plate on the back side of the plate member 124 from the main body 342 via the outside of the plate member 124. A substantially U-shaped stopper piece 344 extending along the shaped member 124 is provided. More specifically, the stopper piece 344 extends outward (downward here) from the main body 342 and passes through the outer side (here, the lower side) of the plate-like member 124. The plate-like member 124 has a shape that extends to the back surface side, and further extends along the plate-like member 124 on the back surface side of the plate-like member 124 (here, extends so as to rise upward).

  Then, the stopper piece 344 extends between the peripheral edge of the door 16a (or the drawer portion 18) and the storage main body portion 14 to the inner surface side of the door 16a (or the drawer portion 18), and a contact piece at the tip portion thereof. The locking device 320 is fixed to the outer surface of the door 16a (or the drawer 18) so that 345 is disposed in the vicinity of the latch engaging portion 17d (or 19d).

  When the stopper piece 344 is moved between the unlocking allowable position and the unlocking restricting position, the stopper piece 344 is located between the peripheral edge of the door 16a (or the drawer 18) and the storage body 14 and the door 16a ( Or it moves on the inner surface side of the drawer 18). At this time, at the unlocking restriction position, the abutting piece 345 at the tip of the stopper piece 344 abuts or approaches the rear side in the engaging direction of the latch engaging portion 17d (or 19d), and the latch engaging portion 17d (or 19d) restricts the posture change from the locked posture to the non-locked posture (see the two-dot chain line in FIGS. 15, 16, and 18). In the unlocking allowable position, the abutting piece 345 at the tip of the stopper piece 344 is retracted to a position separated by a predetermined distance to the rear side in the engaging direction of the latch engaging portion 17d (or 19d), and the latch engaging portion 17d (or 19d) is allowed to change the posture from the locked posture to the non-locked posture (see solid lines in FIGS. 15, 16, and 18).

  According to the thus configured locking device 340, the stopper piece 344 of the stopper member 340 passes between the peripheral edge of the door 16a (or the drawer 18) and the storage main body 14 and the latch engaging portion 17d (or 19d), the locking / unlocking function can be added to the latch mechanism 17b (or 19c). Further, the stopper member 340 directly abuts on the latch engaging portion 17d (or 19d) of the latch mechanism 17b (or 19c) to restrict the latch engaging portion 17d (or 19d) from changing to the unlocked posture. Therefore, the locked state can be more reliably maintained.

<Modification>
In addition, the cabinet 12 demonstrated by the said embodiment is an example of a storage device, and is not restricted to the said structure. The whole storage device may be configured to be opened and closed by a door, or may be configured to have only a plurality of drawers.

  Further, in the above-described embodiment, the example in which the stopper lock portion 160 is incorporated in the stopper members 140, 240, and 340 has been described. Further, the mechanism for locking the stopper members 140, 240, and 340 is not limited to the above example, and a lock configuration using various engagement configurations and the like can be employed.

  In the above-described embodiment, an example in which electronic authentication is performed has been described. However, various other lock configurations can be employed. For example, a configuration may be adopted in which a plurality of types of buttons are provided and the lock mechanism is released by operating a preset type of buttons. Moreover, the structure which cancels | releases a locking mechanism may be sufficient with what is called a dial lock type structure. Furthermore, the structure which cancel | releases a predetermined internal locking mechanism by incorporating a cylinder lock etc. and inserting a key in the said cylinder lock etc. may be sufficient.

It is a perspective view which shows the whole structure of the storage apparatus with a lock | rock. It is a principal part enlarged view of a storage apparatus. It is the III-III sectional view taken on the line of FIG. It is a perspective view which shows the locking device which concerns on the 1st form assembled | attached to an operation part. It is a front view which shows a locking device same as the above. It is a top view which shows a locking device same as the above. It is a schematic front view which shows a stopper lock part. It is a schematic sectional drawing which shows the locking mechanism in a locked state. It is a schematic sectional drawing which shows the locking mechanism in an unlocked state. It is explanatory drawing which shows a locking mechanism. It is a block diagram which shows the electrical structure of a locking device and an electronic key. It is a perspective view which shows the locking device which concerns on the 2nd form assembled | attached to an operation part. It is a front view which shows a locking device same as the above. It is a top view which shows a locking device same as the above. It is a perspective view which shows the locking device which concerns on the form assembled | attached to a latch mechanism. It is a front view which shows a locking device same as the above. It is a side view which shows a locking device same as the above. It is a top view which shows a locking device same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Locking storage device 12 Cabinet 14 Storage body part 14h Engagement hole part 16a Door 17a Handle part 17b, 19c Latch mechanism 17d Latch engagement part 18 Pull-out part 19b Operation lever 20, 220, 320 Locking device 120 Locking device 122 Device main body Part 140, 240, 340 Stopper member 142 Main body part 144 Extension stopper part 160 Stopper lock part 244 Extension stopper part 245 Contact part 344 Stopper piece 345 Contact piece

Claims (3)

A storage body, an opening / closing member that can be opened and closed with respect to the storage body, a latch mechanism that locks the opening / closing member so as to be closed, and an external surface of the opening / closing member. A locking device attached to a storage device having an operation unit for locking and unlocking the device,
An apparatus body that can be attached to the outer surface of the opening and closing member;
The apparatus main body, a stopper member attached movably between the front SL operating unit unlock preventing position for regulating the release of the lock by the lock release permitting position to permit release thereof,
A stopper lock portion for locking the stopper member at the unlocking restriction position according to a locking operation, and releasing the locking of the stopper member according to an unlocking operation;
Equipped with a,
The operation unit is configured to be capable of unlocking the latch mechanism by changing the posture from the first operation posture to the second operation posture,
The stopper member is disposed in proximity to or in contact with the operation portion at the unlocking restriction position, and a contact portion that contacts the operation portion and restricts the operation portion from changing its posture to the second operation posture. A locking device.   A storage body, an opening / closing member that can be opened and closed with respect to the storage body, a latch mechanism that locks the opening / closing member so as to be closed, and an external surface of the opening / closing member. A locking device attached to a storage device having an operation unit for locking and unlocking the device,
  An apparatus body that can be attached to the outer surface of the opening and closing member;
  A stopper member attached to the apparatus main body so as to be movable between a lock release restriction position for restricting release of the lock by the latch mechanism and a lock release permissible position for allowing the release;
  A stopper lock portion for locking the stopper member at the unlocking restriction position according to a locking operation, and releasing the locking of the stopper member according to an unlocking operation;
  With
  The latch mechanism includes a lock posture that locks the opening / closing member so as to be engaged with an engaged portion of the storage main body portion and keep the opening / closing member in a closed state at a peripheral portion of the opening / closing member; A latch engagement portion that can be changed in posture between a non-locking posture in which engagement with the joint portion is released and the opening and closing member can be opened;
  The stopper member extends from the outer surface of the opening / closing member through the periphery of the opening / closing member and the storage main body toward the latch engaging portion, and is in the locked position at the unlocking restriction position. The latch engaging portion is restricted from changing the posture to the unlocked posture, and retracted from the unlock release restricting position at the unlocking allowable position, and the latch engaging portion is changed from the locked posture to the unlocked posture. Locking device that allows to do.   A storage device having an opening / closing member which is freely opened and closed with respect to the storage main body;
  The locking device according to claim 1 or 2, attached to the opening / closing member;
  A storage device with a lock.

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