JP6120135B2 - Locking device and storage device provided with the same - Google Patents

Description

  The present invention relates to a lock device installed in a storage box body in which doors are rotatably connected and a storage device including the lock device.

Conventionally, various storage devices such as a rental locker (rental storage) for storing various articles, postal items, parcels, etc., a mail receiving box, a cargo receiving box and the like are known. Such a storage device is provided with a locking device that locks a door that opens and closes the opening.
For example, Patent Document 1 below proposes an opening / closing mechanism that includes a locking portion that is rotatably connected to a storage device body and that locks a locked portion of a door that can open and close the opening of the storage device body. Has been. This opening / closing mechanism includes a locking mechanism that is rotatable in a lock mechanism housing attached to the storage device body, a spring for rotating the locking mechanism to open the door, and a locking mechanism. And a rotatable arm portion that holds the door in the door closed position. Further, the lock mechanism housing is unlocked by the spring that rotates the arm portion to the side holding the locking device and the locking device that is driven by the arm portion and held in the door closed position. And a drive mechanism that opens the door. Further, the locking tool is pivotally supported on the lock mechanism housing by a shaft at the substantially center, and a locking portion for locking the locked portion of the door is provided on the upper side of the shaft. A second locking portion that is locked to the arm portion on the side protrudes rearward. In addition, the arm portion is pivotally supported on the lock mechanism housing by a shaft at the approximate center thereof, and a locking piece for locking the second locking portion of the locking tool is provided on the upper side of the shaft. It is configured.

JP 2009-287216 A

  However, in the opening / closing mechanism described in Patent Document 1, the locked state is obtained by locking the second locking portion of the locking tool that locks the locked portion of the door and the locking piece of the arm portion. It has a structure that holds Therefore, if a processing error or an assembly error occurs in any of these two members, it is difficult to perform reliable locking. Therefore, it is necessary to process these with high accuracy and to assemble with high accuracy, which complicates the structure. There was a problem. In addition, the locking tool is configured to be rotatable about a substantially central axis, and a locking portion for locking the locked portion of the door is provided on the upper side of the shaft. It is configured to be rotatable around a shaft and provided with a locking piece for locking a locking tool on the upper side of the shaft. Therefore, in the case of external force acting on the door in the opening direction from the inner side or the outer side, for example, due to overloading or prying of luggage, the above two member errors and deterioration over time, In combination with the possibility of breakage and the like, it is conceivable that the locking tool and the arm part can be easily rotated around the shaft toward the side of releasing the locking.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a locking device that can improve the stability of locking while simplifying the structure, and a storage device including the same.

In order to achieve the above object, a locking device according to the present invention is a locking device installed in a storage box body in which a door for opening and closing a front opening is rotatably connected, and is provided on one side of the door. The locked portion of the door, which is pivotable so that the front end side thereof moves up and down around a rotation fulcrum located at substantially the same height as the locked portion, is closed at the front end portion. A locking member provided with a locking portion for locking; a biasing member that biases the locking member toward the locking side around the rotation fulcrum; and the biasing member against the biasing of the biasing member. An unlocking mechanism for rotating the locking member around the rotation fulcrum toward the locking release side, and the locking member is arranged to extend in the front-rear direction with the rear end portion as the rotation fulcrum. The locking portion is configured to be locked to the locked portion of the door from above, and the urging member is disposed in front of the locking member. It is connected to the lower side of the substantially central portion between the direction substantially central portion and the locking portion, and is a tension spring that urges the locking member downward, and the unlocking mechanism includes the locking member An unlocking portion that is disposed so as to be positioned on the lower side and on the rear side of the biasing member, and abuts on a substantially central portion in the front-rear direction of the locking member to rotate the locking member to the locking release side. It is characterized by having.

In the present invention, when the locking member is rotated to the locking release side by the unlocking mechanism and the door is unlocked, the door is urged in the opening direction so as to open the door. Two urging members may be provided.
In the present invention, the front end portion of the locking member, anti the locking member with the abutment of the rear portion of the locking portion of the door moves to the closed side to the urging of the urging member And you may provide the inclination guide surface part rotated to the said latching release side.

  In order to achieve the above object, a storage device according to the present invention includes a storage box main body in which a door for opening and closing a front opening is rotatably connected, and a lock device according to the present invention installed in the storage box main body. And.

  Since the locking device according to the present invention and the storage device including the same are configured as described above, the stability of locking can be improved while simplifying the structure.

1 is a partially omitted schematic side view schematically showing an example of a lock device according to an embodiment of the present invention and a storage device including the same. FIG. 2 is a partially omitted schematic side view corresponding to FIG. 1. FIG. 2 is a partially omitted schematic side view corresponding to FIG. 1. FIG. 2 is a partially omitted schematic side view corresponding to FIG. 1. It is a schematic perspective view which shows typically an example of the storage device.

Embodiments of the present invention will be described below with reference to the drawings.
1-5 is a figure which shows typically an example of the locking device which concerns on this embodiment, and a storage apparatus provided with the same.
1 to 4, illustration of a part of the storage box body and the lock device is omitted.
Further, in the following embodiments, the front side is the front, the opposite side is the rear, with the state facing the opening of the installed storage device as the reference, and the direction such as the vertical direction is the principle based on the state. I will explain it.

As shown in FIG. 5, the lock device 1 according to the present embodiment is installed in a storage box body 3 in which a door 5 that opens and closes a front opening is rotatably connected. The storage device 2 according to the present embodiment includes a storage box body 3 and a lock device 1 installed in the storage box body 3. In the present embodiment, the storage box body 3 has a structure in which a plurality of storage portions 4 are provided at the top and bottom, and a door 5 that opens and closes the front opening of each storage portion 4. Moreover, it is set as the structure which provided the locking device 1 which locks each door 5 to each door 5 correspondingly. Moreover, in the example of a figure, the example which installed the some storage apparatus 2 side by side was shown.
The storage device 2 may store various articles, mails, home deliveries, etc., for example, in a rental locker (rental storage) installed in a public space such as a station premises, an apartment house, etc. It is good also as what is used as an installed mail receiving box, a receiving box, etc. In addition, it is good also as the storage apparatus 2 used as what accommodates various articles | goods.

The storage box body 3 has a box shape including a top plate portion, a bottom plate portion, left and right side plate portions, and a back plate portion that divide each storage portion 4. In addition, the top plate part and bottom plate part which divide the adjacent storage parts 4 may be used as a partition plate part.
Each door 5 is rotatably connected to the storage box main body 3 around a rotation fulcrum along a substantially vertical direction at a front end portion of one side plate portion that defines each storage portion 4 of the storage box main body 3. . As a support part which supports each door 5 so that opening and closing is possible, it is good also as rotation connection members, such as a hinge fixed to the front-end part of one side plate part, etc. of the storage box main body 3. FIG. Or it is good also as an aspect etc. which provided the bearing part in one of the storage box main body 3 and the door 5, and provided the axial part inserted in this bearing part in the other. In addition, it is possible to employ various types of support portions.

  Further, a locked portion 7 (see FIG. 1) to be locked to the locking device 1 described later is provided on one side portion different from the rotation fulcrum side of each door 5. As shown in FIGS. 1 and 5, the locked portion 7 protrudes toward the rear side from the back surface of one side of each door 5 (the surface facing the storage portion 4 in the closed state of the door 5). Thus, the door 5 is spanned between a pair of projecting piece portions 6 and 6 provided at an interval in the width direction of the door 5 (the opening direction of the storage portion 4). In addition, in the illustrated example, the locked portion 7 has a substantially round bar shape (substantially cylindrical shape or substantially columnar shape) whose axial direction is along the width direction of the door 5. In the illustrated example, the door 5 of the lowermost storage unit 4 is opened, and the pair of projecting pieces 6 and 6 of the door 5 are illustrated, but the other storage unit 4 of the upper side is illustrated. The door 5 has substantially the same configuration.

  Moreover, the example which installed the locking device 1 in the front side site | part of the other side-plate part which divides each storage part 4 of this storage box main body 3 is shown. The locking device 1 may be fixed to the inner side surface of the other side plate portion (the surface facing the one side plate portion side). However, in the illustrated example, the other side plate portion has a double wall structure, The example which installed so that 1 may be accommodated in the other side-plate part is shown. Moreover, you may make it provide the opening according to the receiving opening 17 of the locking device 1 mentioned later in the front cover piece part which seals the front side of the other side board part made into the double wall structure in this way. Or you may make it provide the opening according to the front board part 16 of the casing 10 of the locking device 1 mentioned later in this front cover piece part.

  In the present embodiment, the lock device 1 is a so-called electric lock, and an operation unit (authentication unit) for unlocking each door 5 individually by one door 5 of the plurality of doors 5 of the storage device 2. ) 8 is provided. Such an operation unit may be provided with a settlement unit that allows the insertion of cash, an electronic money settlement system, etc., and is unlocked by authentication by contact or proximity of an IC card or input of a password or the like. It is good also as what was made into the aspect made to do. Further, the storage device 2 is provided with a control unit 9 connected to the operation unit 8 and each lock device 1 via a signal line or the like. With the operation or authentication in the operation unit 8, the control unit 9 performs unlocking control or the like of the unlocking mechanism 30 to be described later on the locking device 1.

In addition, in the example of the figure, each door 5 is illustrated as an example of a so-called outset storage that is stored so as to face the front surface of the storage box body 3 in a closed state, but each door 5 is closed. It is good also as what is called inset accommodation stored in the front opening of each storage part 4 in a state. In this case, you may make it deform | transform suitably the structure of the other side-plate part, the installation aspect of the locking device 1, etc.
In addition, a door opening, an opening / closing lid for opening and closing the door, etc. are provided in each door 5 and a back plate portion that divides each storage portion 4 of the storage box body 3 according to the use of the storage device 2 and the like. You may do it.
Moreover, in this embodiment, although the storage box main body 3 which provided the several storage part 4 in the upper and lower sides is illustrated, it replaces with or adds to such a mode, and the storage which provided the several storage part 4 in right and left The box body 3 may be used. In this case, it is good also considering the side-plate part which divides adjoining accommodating part 4 as a partition plate part. Furthermore, it is good also as the storage box main body 3 which provided the single storage part 4. FIG.

As shown in FIG. 1, the locking device 1 is rotatable around a rotation fulcrum 12 and has a locking portion 23 that locks the locked portion 7 of the door 5 that is closed at the front end portion 22. The provided locking member 20 is provided. Further, the locking device 1 rotates the locking member 20 against the urging force of the urging member 27 and the urging member 27 that urges the locking member 20 around the rotation fulcrum 12 toward the locking side. And an unlocking mechanism 30 that rotates around the moving fulcrum 12 to the unlocking side.
Each member of the lock device 1 is incorporated in the casing 10 of the lock device 1.

The casing 10 has a thin, substantially box shape that is aligned with the thickness direction of the side plate portion of the storage box body 3.
Moreover, in the example of a figure, the example which assembled | attached each above-mentioned member to the one side-plate part 11 of the casing 10 is shown.
The front plate portion 16 of the casing 10 is provided with a receiving opening 17 that receives the pair of protruding piece portions 6 and 6 and the locked portion 7 of the door 5 described above.
Further, both side plate portions (other side plate portions are not shown) 11 of the casing 10 are provided with notch-shaped receiving recesses 15 that open toward the front for receiving the pair of projecting piece portions 6 and 6 of the door 5. It has been. The receiving recess 15 is located on the rear side of the receiving opening 17 and is provided to extend rearward.

  Depending on the side plate portion of the storage box body 3 to which the lock device 1 is assembled, the front plate portion 16 and the receiving opening 17 may be provided on the storage box body 3 side without being provided in the casing 10. . In addition, the casing 10 may be provided with the other side plate portion, but may be configured such that the other side is open. That is, the other side may be sealed by the side plate portion of the storage box body 3. Further, the casing 10 may be fixed to the storage box main body 3 by a fastener such as a screw or an adhesive.

The locking member 20 is rotatable in a casing 10 so that its front end side moves up and down around a rotation fulcrum 12 positioned substantially at the same height as the locked portion 7 provided on one side of the door 5. Is held in. That is, the locking member 20 is held by the casing 10 so as to be rotatable about a substantially horizontal axis. As shown in FIGS. 1 and 3, the locking member 20 is in a state where the locking portion 23 of the front end portion 22 locks the locked portion 7 of the door 5 (the locked state of the door 5) and the door. In the open state of 5, the rotation fulcrum 12 of the locking member 20 and the locking portion 23 are arranged at substantially the same height. Further, the locking member 20 is disposed so that the front end portion 22 thereof is close to the back surface of the front plate portion 16 of the casing 10, and the locking portion 23 is in a locked state and an open state (engagement state) of the door 5. In the normal state of the stop member 20, it is arranged on the rear side of the receiving opening 17 of the casing 10.
Further, the locking member 20 has a thin plate shape along the thickness direction of the side plate portion of the storage box body 3.

  Further, in the present embodiment, the locking member 20 is in the form of an arm that is disposed so as to extend in the front-rear direction with the rear end portion serving as the rotation fulcrum 12. In the illustrated example, the pivot fulcrum of the locking member 20 is a shaft portion 12 provided on one side plate portion 11 of the casing 10 so as to protrude in a direction along the thickness direction of the side plate portion of the storage box body 3. Yes. In addition, a bearing hole 21 through which the shaft portion 12 is inserted is provided at the rear end portion of the locking member 20, and an E-ring-shaped retaining ring is fitted into the shaft portion 12 inserted through the bearing hole 21. It is set as the aspect which assembled | attached the member 20 to the casing 10 so that rotation was possible. In addition, as an aspect which makes the locking member 20 turnable, it is not restricted to such an aspect, For example, the shaft part was provided in the locking member 20, and the bearing hole etc. which received this shaft part in the casing 10 were provided. It is good also as such an aspect, and various other aspects are employable.

In the present embodiment, the locking member 20 has a structure in which the locking portion 23 is locked to the locked portion 7 of the door 5 from above. That is, the locking member 20 is biased to the locking side by the biasing member 27 so that the front end side thereof moves downward. Further, when the door 5 is unlocked, the locking member 20 is unlocked by the unlocking mechanism 30 so that its front end side moves upward against the biasing of the biasing member 27. (See FIG. 2).
Further, the locking portion 23 of the locking member 20 is formed so as to protrude downward, and as shown in FIG. 1, when the door 5 is locked, the locking portion 7 of the door 5 is locked. It arrange | positions so that the front side may be covered, and it is set as the structure which prevents the movement to the front side of the to-be-latched part 7, and locks. On the other hand, the locking portion 23 of the locking member 20 is, as shown in FIG. 2, the door 5 when the locking member 20 is rotated to the unlocking side by the unlocking mechanism 30 (unlocked state). It is arrange | positioned rather than the to-be-latched part 7 of this. Thereby, the movement of the locked portion 7 of the door 5 to the front side is possible, and the door 5 can be opened.
In addition, although the example which shows the surface which faces the back side of the latching | locking part 23 in the example of the figure in the normal state of the latching member 20 was shown as the substantially perpendicular | vertical surface shape, it is set as a concave curved surface shape, or goes below. Or an inclined surface shape inclined to the rear side.

Further, in the present embodiment, as shown in FIG. 4, the locking member 20 is brought into contact with the front end portion 22 of the locking member 20 by the contact of the back surface portion of the locked portion 7 of the door 5 moving to the closing side. Is provided with an inclined guide surface portion 23a that rotates to the unlocking side against the urging force of the urging member 27. In this embodiment, the surface facing the front side of the locking portion 23 is an inclined guide surface portion 23a. The inclined guide surface portion 23 a has an inclined surface shape that inclines toward the rear side toward the lower end of the locking portion 23 in the normal state of the locking member 20.
As shown in FIG. 4, the back surface portion of the locked portion 7 of the door 5 that moves to the closing side abuts on the inclined guide surface portion 23 a, so that the locking member 20 is unlocked by the guide action. That is, it rotates so that the front end portion 22 is pushed upward. Further, when the locked portion 7 of the door 5 passes through the locking portion 23 of the locking member 20 and the door 5 is closed, the locking member 20 is rotated to the locking side by the urging member 27, It will be in a locked state (normal state).

  In the present embodiment, a detection unit 18 that detects the rotation state of the locking member 20 is provided. In the illustrated example, a contact switch such as a micro switch pushed down by the locking member 20 is used as the detection unit 18. Further, a protruding piece portion 26 is provided at the rear end portion of the locking member 20 so as to protrude upward, and this protruding piece portion 26 is set as a detected portion, and the detecting portion 18 is positioned on the front side thereof. An example is shown. Further, when the locking member 20 is in a normal state, as shown in FIGS. 1 and 3, the protruding piece portion 26 of the locking member 20 is in a state of pushing down the detection unit 18. On the other hand, in a state where the locking member 20 is rotated to the locking release side (unlocking side), as shown in FIGS. 2 and 4, the protruding piece 26 of the locking member 20 is away from the detection unit 18. It will move to, and it will be in the state where pushing down was canceled.

The urging member 27 is configured to constantly urge so that the locking member 20 is rotated to the locking side. In the present embodiment, the urging member 27 is connected to the lower side of the front end side relative to the front-rear direction center of the locking member 20 as a tension spring (tensile coil spring) 27 that urges the locking member 20 downward. Yes.
The tension spring 27 is provided so as to extend vertically so that the biasing direction (tensile direction) is substantially the vertical direction. One end (lower end) 28 of the tension spring 27 is hooked and held by the hook 13 provided on the side plate 11 of the casing 10. On the other hand, the other end portion (upper end portion) 29 of the tension spring 27 is hooked and held by a hook portion 24 provided on the locking member 20. In the illustrated example, the hooking portion 24 of the locking member 20 is provided so as to protrude downward at a substantially central portion between the locking portion 20 and the substantially central portion in the front-rear direction (longitudinal direction) of the locking member 20. The example which provided the hook part 13 of the casing 10 just under that is shown.

In this embodiment, the unlocking mechanism 30 is disposed on the lower side of the locking member 20 and on the rear side of the tension spring 27.
Moreover, in this embodiment, this unlocking mechanism 30 is made rotatable, the locking member 20 is rotated to the locking release side, and the unlocking part 33 for unlocking and the unlocking part 33 are rotated. And a driving unit 31 to be driven. The drive unit 31 is controlled by the control unit 9 described above.
The drive unit 31 is composed of a motor, and has a configuration in which a gear unit 32 as a drive transmission unit to the unlocking unit 33 is provided on the output shaft. In the present embodiment, the gear portion is the worm portion 32.

  The unlocking portion 33 is formed in a thin disk shape along the axial direction in the thickness direction of the locking device 1, and is held by the casing 10 so as to be rotatable around the rotation fulcrum 14. In the illustrated example, the rotation fulcrum of the unlocking portion 33 is a shaft portion 14 provided on one side plate portion 11 of the casing 10, substantially the same as the locking member 20 described above. Further, a bearing hole 34 through which the shaft portion 14 is inserted is provided in the shaft center of the unlocking portion 33, and an E-ring-shaped retaining ring is fitted to the shaft portion 14 inserted through the bearing hole 34. 33 is configured to be rotatably mounted on the casing 10. In addition, as an aspect which makes the unlocking part 33 rotatable, it is not restricted to such an aspect, The adoption of various aspects other than the above-mentioned latching member 20 is possible.

The unlocking part 33 is provided with a wheel part 35 as a gear part that meshes with the worm part 32 of the drive part 31 coaxially with the unlocking part 33.
Further, the unlocking portion 33 is fixedly provided with a cam portion 36 on one side in the axial direction of the wheel portion 35 for rotating the locking member 20 to the locking release side with the rotation of the unlocking portion 33. It has been. The cam portion 36 is provided coaxially with the unlocking portion 33 and is formed in an eccentric shape so that its diameter increases in one radial direction from the shaft center, and the large diameter portion is the locking member 20. And the locking member 20 is rotated to the locking release side. The cam portion 36 has an appropriate shape so that the locking of the locking portion 23 of the locking member 20 and the locked portion 7 of the door 5 can be released with the rotation of the unlocking portion 33. It is good.

In the illustrated example, the cam portion 36 is provided so as to be positioned below the substantially central portion in the front-rear direction of the locking member 20, and the lower surface of the substantially central portion in the front-rear direction of the locking member 20 is provided on the cam portion 36. The example which made it the contact part 25 contacted is shown.
Further, in the state where the maximum diameter portion of the cam portion 36 is located on the upper side and is in contact with the contact portion 25 of the locking member 20, as shown in FIG. It will be in the state rotated.
On the other hand, in a state where the small diameter portion of the cam portion 36 is close to or in contact with the contact portion 25 of the locking member 20, the locking member 20 is brought into a normal state as shown in FIGS.

In the present embodiment, a detection unit 19 that detects the rotation state of the unlocking unit 33 is provided. In the illustrated example, as in the above, an example in which a contact switch such as a micro switch pushed down by the unlocking unit 33 is used as the detection unit 19 is shown. Further, an example is shown in which a detected portion 37 is fixedly provided on the other side in the axial direction of the wheel portion 35 of the unlocking portion 33 and the detecting portion 19 is provided so as to be positioned above the unlocking portion 33. . In the illustrated example, the detected portion 37 is coaxially provided on the unlocking portion 33, and has an eccentric substantially disk shape whose diameter is increased in one radial direction from the axis. In a state where the large diameter portion of the detected portion 37 is located on the detecting portion 19 side, the detecting portion 19 is pushed down, and in a state where the small diameter portion of the detected portion 37 is located on the detecting portion 19 side, the detecting portion 19 The push-down state is released.
The detected portion 37 is formed such that the small diameter portion thereof coincides with the large diameter portion of the cam portion 36 in the axial direction. That is, the cam portion 36 and the detected portion 37 are formed in opposite phases.

In the unlocking part 33 configured as described above, when the driving part 31 is driven, the worm part 32 rotates, and the unlocking part 33 having the wheel part 35 engaged therewith rotates around the shaft part 14. . By the rotation of the unlocking portion 33, the large diameter portion of the cam portion 36 abuts on the locking member 20, and the locking member 20 is rotated to the locking release side against the biasing of the biasing member 27. The
Further, in the locking device 1 configured as described above, the drive unit 31 is based on the detection of the rotation state of the locking member 20 by the detection unit 18 and the detection of the rotation state of the unlocking unit 33 by the detection unit 19. Is controlled. If the unlocking operation is performed with the operation or authentication in the operation unit 8 in the state where the detection unit 19 is pushed down, the driving unit 31 is driven, the unlocking unit 33 is rotated, and the locking member 20 is moved. Turn to the unlocking side. If the depression of the detection unit 18 is released along with this (see FIG. 2), the drive unit 31 is stopped until a predetermined time elapses, and when the predetermined time elapses, the drive unit 31 is re-driven and opened. The lock part 33 is rotated. Thereby, the locking member 20 will be in a normal state. In addition, as a detection part (The detection part 18 which detects the rotation state of the locking member 20, and the detection part 19 which detects the rotation state of the unlocking part 33) for controlling the drive of the drive part 31, said part is mentioned. It is not restricted to such an aspect, In addition, the detection parts 18 and 19 made into various aspects are employable.

Note that the unlocking mechanism 30 is not limited to the above-described mode, and may be, for example, a solenoid or the like, and various other modes of the unlocking mechanism 30 may be employed. Moreover, as the unlocking mechanism 30, it is not restricted to what was made into the aspect made to rotate the latching member 20 to the latch release side by the above electrical controls. For example, the locking member 20 may be mechanically rotated to the unlocking side in conjunction with the key operation.
Moreover, you may make it provide the stopper part which prevents the rotation to the further latching side of the latching member 20 of a normal state. Such a stopper portion may be a small-diameter portion of the cam portion 36 of the unlocking portion 33, or may be the detection portion 18 that is pushed down by the protruding piece portion 26 at the rear end portion of the locking member 20. Or you may make it provide a stopper part in the suitable place etc. of the casing 10 separately from these.

Moreover, in this embodiment, the locking device 1 opens the door 5 so that the door 5 is opened when the locking member 20 is rotated to the unlocking side by the unlocking mechanism 30 and the door 5 is unlocked. A second biasing member 44 that biases in the opening direction is provided. The second urging member 44 is configured to urge the closed door 5 in the opening direction.
In the present embodiment, the second urging member 44 is provided in the door opening mechanism 40 incorporated in the casing 10. In the present embodiment, the second urging member 44 is a compression spring (compression coil spring).

The door opening mechanism 40 includes a pressing portion 45 that is urged forward by a compression spring 44 and a mechanism housing 41 that incorporates the compression spring 44 and the pressing portion 45. In the illustrated example, the door opening mechanism 40 is provided on the lower side of the biasing member 27 that biases the locking member 20.
The pressing portion 45 has a substantially rod shape with the axial direction extending in the front-rear direction, and a front end portion (tip portion) of the pressing portion 45 is in contact with the back surface of one side portion of the door 5 in the closed state. The front plate portion 16 of the casing 10 is provided with an opening through which the pressing portion 45 is inserted. Further, on the rear end (base end) side of the pressing portion 45, a hook-like portion 46 that comes into contact with the front end portion of the compression spring 44 is provided, and a rear end portion 47 on the rear end side of the hook-like portion 46. Is inserted into the compression spring 44.

The mechanism housing 41 has a guide portion that guides a compression spring 44 that expands and contracts in the front-rear direction, a rear end portion that abuts the rear end portion of the compression spring 44 and restricts the movement of the compression spring 44 to the rear side, Is provided. Further, the mechanism housing 41 is in contact with a guide portion that guides the pressing portion 45 that moves in the front-rear direction, and a hook-like portion 46 of the pressing portion 45, thereby restricting the forward movement of the pressing portion 45. A front side wall portion 43 is provided.
In the door opening mechanism 40, when the locking portion 23 of the locking member 20 is locked to the locked portion 7 of the door 5, and the door 5 is locked (closed), as shown in FIG. The spring 44 is in a contracted state, and the entire pressing portion 45 is immersed in the casing 10. On the other hand, when the door 5 is unlocked, as shown in FIGS. 2 and 3, the door opening mechanism 40 extends its compression spring 44 so that the pressing portion 45 protrudes forward, and one side of the door 5. It is set as the structure which opens the door 5 so that a part may be pushed ahead.

The door opening mechanism 40 may be configured to fully open the door 5, but may be configured to partially open the door 5.
Further, the door opening mechanism 40 is not limited to the one shown in the figure, and may include a second urging member 44 that urges at least the door 5 in the opening direction. The second urging member 44 is not limited to a compression spring, and may be another spring member such as a tension spring, a torsion spring, or a leaf spring, and may be rubber or the like. In this case, the arrangement position of the second urging member 44 may be appropriately changed.

The locking device 1 according to the present embodiment and the storage device 2 including the same can be improved in locking stability while simplifying the structure by adopting the above-described configuration.
That is, the locking member 20 provided with the locking portion 23 for locking the locked portion 7 of the door 5 is engaged around the rotation fulcrum 12 against the biasing force of the biasing member 27 by the unlocking mechanism 30. The door 5 can be unlocked by turning to the stop release side.
Further, the member for locking the door 5 and the member rotated by the unlocking mechanism 30 are the same locking member 20. Therefore, for example, the structure can be simplified and the occurrence of errors, aging deterioration, breakage, etc. can be achieved as compared with the case of holding the locking tool for locking the door by the arm portion driven by the drive mechanism. The stability of locking can be improved.

  Further, the locking member 20 is rotatable so that the front end side thereof moves up and down around the rotation fulcrum 12 positioned substantially at the same height as the locked portion 7 of the door 5, and is closed at the front end 22. It is set as the structure which provided the latching | locking part 23 which latches the to-be-latched part 7 of the door 5 made into the state. Therefore, even when an external force is applied to the door 5 in the opening direction from the inner side or the outer side, the locking member 20 is difficult to rotate around the rotation fulcrum 12, and the engagement of the front end portion 22 thereof. The stop portion 23 can be relatively reliably locked to the locked portion 7 of the door 5, and the locking stability can be further improved.

Further, in the present embodiment, the door 5 is opened to the locking device 1 so that the door 5 is opened when the locking member 20 is rotated to the unlocking side by the unlocking mechanism 30 and the door 5 is unlocked. A second urging member 44 that urges in the opening direction is provided. Therefore, the door 5 can be opened by the second urging member 44.
Moreover, since the door 5 can be urged | biased in an open direction by the 2nd urging | biasing member 44, between the latching | locking part 23 etc. of the latching member 20, and the to-be-latched part 7 etc. of the door 5 made into the closed state Even when there is a clearance, rattling of the door 5 can be prevented.
Moreover, since the 2nd biasing member 44 which opens the door 5 is provided separately from the latching member 20 which locks and unlocks the door 5, according to the load of the door 5, a desired opening degree, etc., for example. Thus, it is possible to easily change the urging force of the second urging member 44.

In this embodiment, the locking member 20 has a structure in which the locking portion 23 is locked to the locked portion 7 of the door 5 from above. Therefore, for example, even when one side portion of the door 5 hangs down from a desired position due to an assembly error of the door 5 or a secular change, the load of the door 5 is hardly applied to the locking member 20. Thereby, the to-be-latched part 7 of the door 5 is not pressed from the upper side to the latching | locking part 23 of the latching member 20, and unlocking can be performed more smoothly.
In addition, the locking member 20 has an arm shape with the rear end portion serving as the rotation fulcrum 12 and extending in the front-rear direction. Therefore, even when a failure or the like occurs in the biasing member 27 that biases the locking member 20 toward the locking side, the locking member 20 is biased in the direction of rotating toward the locking side by its own weight. The stability of locking can be further improved.

In the present embodiment, the biasing member 27 that biases the locking member 20 is connected to the lower side of the front end side of the locking member 20 in the front-rear direction, and the locking member 20 is biased downward. This is a tension spring 27. Therefore, for example, as compared with a structure in which the tension spring 27 is connected to a portion near the rotation fulcrum of the locking member 20, the urging force to the locking side is efficiently applied to the locking member 20. Thus, the size of the tension spring 27 as the urging member can be reduced. Further, for example, the locking device 1 can be made more compact in the front-rear direction than a portion in which the locking member 20 is provided with a portion extending rearward from the rotation fulcrum 12 and a tensile spring 27 is connected to the portion. be able to.
In addition, since the unlocking mechanism 30 is disposed so as to be located behind the tension spring 27 and below the locking member 20, these are efficiently disposed in the locking device 1. The locking device 1 can be made compact.

  Further, in the present embodiment, the engaging member 20 is attached to the front end portion 22 of the engaging member 20 with the urging member 27 as the rear surface portion of the engaged portion 7 of the door 5 moving to the closing side comes into contact. There is provided an inclined guide surface portion 23a that rotates to the unlocking side against the force. Therefore, with the closing of the door 5, the locking portion 23 of the locking member 20 can be locked to the locked portion 7 of the door 5 and the door 5 can be locked. Thereby, when locking the door 5, the locking member 20 can be moved by key operation etc., and the door 5 can be locked easily compared with what needs to be locked, for example. In addition, without providing the inclined guide surface portion 23a on the locking member 20, the locking member 20 may be rotated to the unlocking side by a key operation or the like and locked.

In the present embodiment, an example is shown in which the unlocking mechanism 30 is disposed so as to be located on the rear side of the biasing member 27 and on the lower side of the locking member 20. It is good also as a mode which arranged.
In the present embodiment, the biasing member 27 that biases the locking member 20 is connected to the lower side of the front end side of the locking member 20 in the front-rear direction, and the locking member 20 is biased downward. However, the present invention is not limited to such an embodiment. For example, the tension spring 27 is connected to a portion near the rotation fulcrum of the locking member 20 or is connected to a portion provided to extend rearward from the rotation fulcrum 12 of the locking member 20. It is good. Further, the urging member 27 that urges the locking member 20 toward the locking side is not limited to a tension spring, and may be another spring member such as a compression spring, a torsion spring, a leaf spring, or rubber. It is good. In this case, what is necessary is just to change suitably the arrangement | positioning position of the urging member 27, etc. FIG.

In the present embodiment, the lock device 1 is provided with the second urging member 44 that urges the door 5 in the opening direction. However, such a second urging member 44 is provided. It may not be possible. In this case, for example, a biasing member that biases the door 5 in the opening direction may be provided on the storage box body 3 side or the door 5 side. Furthermore, an urging member that urges the door 5 in the opening direction may not be provided.
Further, in the illustrated example, the vertical dimensions of the receiving recess 15 and the receiving opening 17 of the casing 10 of the lock device 1 are the dimensions corresponding to the vertical dimensions of the pair of protruding pieces 6 and 6 and the locked portion 7 of the door 5. However, the present invention is not limited to such an embodiment. For example, the bottom surface of the receiving recess 15 may be an inclined surface that inclines downward toward the front side, and the vertical dimension of the receiving opening 17 may be a dimension corresponding to the front opening of the receiving recess 15. If it is set as such an aspect, even when the one side part side of the door 5 hangs down by an assembly | attachment error, secular change, etc., the door 5 can be opened and closed smoothly.

  In the present embodiment, the locking member 20 is structured such that the locking portion 23 is locked to the locked portion 7 of the door 5 from the upper side. I can't. For example, the locking member 20 may have a structure in which the locking portion 23 is locked to the locked portion 7 of the door 5 from below. That is, when the door 5 is unlocked, the locking member 20 is moved to the unlocking side by the unlocking mechanism 30 so that the front end side moves downward against the biasing of the biasing member 27. It is good also as what is rotated. In this case, what is necessary is just to change suitably the arrangement | positioning position etc. of the biasing member 27 and the unlocking mechanism 30. FIG. In addition, the locking member 20 is not limited to the arm-shaped member having the rear end portion as the rotation fulcrum 12 and arranged to extend in the front-rear direction, and other various locking members 20 having various shapes. Can be adopted.

1 Locking device 12 Shaft (turning fulcrum)
20 Locking member 22 Front end portion 23 Locking portion 23a Inclined guide surface portion 27 Tension spring (biasing member)
30 Unlocking mechanism 44 Compression spring (second biasing member)
2 Storage device 3 Storage box body 5 Door 7 Locked part

Claims (4)

It is a lock device installed in a storage box body that rotatably connects a door that opens and closes a front opening,
The front end of the door is pivotable so that the front end moves up and down around the rotation fulcrum located approximately at the same height as the locked portion provided on one side of the door, and the front end is closed. A locking member provided with a locking portion for locking the locked portion of the door;
A biasing member that biases the locking member around the rotation fulcrum toward the locking side;
An unlocking mechanism for rotating the locking member toward the locking release side around the rotation fulcrum against the biasing of the biasing member;
Equipped with a,
The locking member is formed in an arm shape that has a rear end portion as the rotation fulcrum and extends in the front-rear direction, and the locking portion locks the locked portion of the door from above. With structure,
The biasing member is connected to a lower side of a substantially central portion between the locking member and a substantially central portion in the front-rear direction of the locking member, and is a tension spring that biases the locking member downward. ,
The unlocking mechanism is disposed so as to be located below the locking member and behind the urging member, and is brought into contact with a substantially central portion in the front-rear direction of the locking member to engage the locking member. A locking device comprising an unlocking portion that is pivoted to a stop release side . In claim 1,
A second urging member that urges the door in the opening direction so that the door is opened when the locking member is rotated to the unlocking side by the unlocking mechanism and the door is unlocked. A locking device comprising: In claim 1 or 2 ,
At the front end of the locking member, the locking member is released against the urging force of the urging member when the back surface of the locked portion of the door moving toward the closing side comes into contact. A locking device characterized in that an inclined guide surface portion is provided to be rotated sideways. A storage box body that rotatably connects a door that opens and closes the front opening;
The locking device according to any one of claims 1 to 3 , which is installed in the storage box body;
A storage device comprising:

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