JP2018109288A - All lock device for drawer in cabinet - Google Patents

Abstract

A latch device that prevents a drawer of a plurality of upper and lower drawers housed in a cabinet body, and an all-lock device that locks a plurality of drawers collectively in a cabinet having a lock in one of the drawers. Increase operational reliability. An operation rod rotation preventing mechanism E for preventing rotation of an operation rod 2A of a drawer H1 provided with a lock B by a lock piece when the lock B is locked, and a drawer when the lock B is locked L An operation rod rotation prevention including an interlocking operation portion F located inside the side plate 37 of the cabinet body O and interlocked with the operation rod rotation prevention mechanism E so as to prevent the rotation of the operation rods 2B and 2C of H2 and H3. And an interlocking mechanism G. When the lock B is locked L, the operation levers 2A to 2C of all the drawers are prevented from rotating, and the engagement state C of the latch devices L1 to L3 is maintained. The state in which the rotation of the drawer operation rods 2A to 2C is prevented is released collectively. [Selection] Figure 1

Description

  The present invention relates to an all-lock device capable of collectively locking a plurality of drawers in a cabinet having a plurality of upper and lower drawers. More specifically, the all-lock device includes an electronic lock or a mechanical lock as one of the drawers. It relates to a locking device.

There is an all-lock device that can lock a plurality of drawers at once in a cabinet having a plurality of drawers in upper and lower stages (see, for example, Patent Document 1).
Here, the cabinet in Patent Document 1 includes a dial lock (13) in the upper drawer (22).
Moreover, in some cabinets provided with a plurality of upper and lower drawers, there are those provided with individual electronic locks for the upper and lower drawers (see, for example, FIG. 3 of Patent Document 2).

The all-lock device for drawers in the cabinet of Patent Document 1 includes left and right latch mechanisms (3, 3) and left and right latch mechanisms (3, 3) that are released by operating the handle (31) of each drawer (22). The left and right rotating shaft (34) for operating the clutch, the clutch (11) interposed between the rotating shaft (34) and the handle (31), and the clutch provided on the end plate (22a) of each drawer (22) The operation part (12) which operates off / on of (11) to switch the locked state / unlocked state, and is configured between the end plates (22a, 22a) of the drawers (22, 22) adjacent vertically. The interlocking mechanism (B) for interlocking the movements of the upper and lower operating parts (12, 12), and the operating part (12) provided on the end plate (22a) of any drawer (22) (12a). ) Or part of the interlocking mechanism (B) Comprises a dial lock (13) or the like is input to provide the operation for switching the lock state / unlocked state.
Here, the interlocking mechanism (B) is configured such that the interlocking rod (14) can be moved up and down on the end plate (22a) of each drawer (22), and the upper and lower interlocking rods (14, ...) are interlocked to move up and down. By moving, the upper and lower operation parts (12,...) Are interlocked. Thereby, the off / on operation of the clutches (11,...) Of the upper and lower drawers (22,...) Can be performed by operating one operating part (12).

  The cabinet of Patent Document 2 uses a battery-type electronic lock (8), and it is necessary to reduce power consumption and reduce battery consumption as much as possible when an actuator such as a solenoid of the electronic lock (8) is driven. Therefore, the actuation force of the actuator (for example, the suction force of the solenoid) is weak, and thus, as described above, the individual electronic locks are provided in the upper and lower drawers.

JP 2009-052298 A JP2015-187345A

The all-lock device for drawers in the cabinet of Patent Document 1 includes upper and lower operating parts (12, 22) by an interlocking mechanism (B) configured between end plates (22a, 22a) of drawers (22, 22) adjacent vertically. 12) Since the interlocking mechanism (B) is incorporated in each movable-side drawer (22), the play (22) and the play portion of the cabinet body (housing 21) are not loose. A positional deviation in the front-rear direction may occur in the upper and lower drawers (22, 22,...) Due to a dimensional error or the like. If there is such a positional shift, the operation of interlocking the movements of the upper and lower operating parts (12, 12) by the interlocking mechanism (B) may be uncertain.
Therefore, from the viewpoint of improving the reliability of the operation for making the all-locked state in which a plurality of drawers are collectively locked and / or the operation for making the unlocked state in which any of the drawers can be withdrawn, it is improved. There is room.

  Further, in the all lock device for drawer in the cabinet as in Patent Document 1, when the battery type electronic lock as in Patent Document 2 is used, the power consumption of the actuator of the battery type electronic lock is reduced. Since it is necessary to use electric power, it is necessary to devise a mechanism that can stably and reliably drive a mechanism capable of locking all drawers at once with an actuator having a weak operating force.

  Accordingly, the present invention provides a latch device that prevents a plurality of upper and lower drawers that are housed in a cabinet body from popping out, and a cabinet that includes a lock in one of the drawers, and an all that locks the drawers in a plurality of stages collectively. It is an object of the present invention to improve the reliability of the operation for making the lock state and the operation for making the lock release state where any drawer can be pulled out.

The all-lock device for drawers in a cabinet according to the present invention is a cabinet body, a plurality of upper and lower drawers housed in the cabinet body, and a latch device for preventing the drawers from jumping out in order to solve the above problems. In a cabinet provided with a lock provided in one of the drawers, an all-lock device capable of locking the drawers of all stages collectively,
The latch device operates the latch claw on the drawer side by an operation rod connected to the drawer pull and pivots about a left-right axis, and engages the latch claw with the engagement portion on the cabinet body side. The state and the disengaged state can be switched,
An operation rod rotation preventing mechanism for preventing rotation of the operation rod of the drawer provided with the lock by a lock piece that is moved by an operation of locking and unlocking the lock at the time of locking the lock;
Positioned on the inside of the side plate of the cabinet body that interlocks with the operation lever rotation prevention mechanism to prevent rotation of the operation rod of the drawer other than the drawer provided with the lock when the lock is locked. And an operation lever rotation interlocking mechanism including an interlocking operation part to perform,
When the lock is locked, the operation rod rotation prevention mechanism and the operation rod rotation prevention interlock mechanism prevent the operation rods of the drawers in all stages from rotating, and the latch device maintains the engaged state. By doing so, it becomes an all-locked state where all the drawers are locked together,
When the lock is unlocked, the state where the operation rods of the drawers of all the stages are prevented from being turned all at once, and by pulling the handle of the drawer of each stage, the latch device of the drawer is released. The disengaged state is established (claim 1).

According to such a configuration, in the latch device that prevents the drawers in the upper and lower stages from being popped out and accommodated in the cabinet body, and the cabinet having the lock in one of the drawers, all the drawers are locked together. The all-lock device is configured by an interlocking mechanism that includes an interlocking operation portion that is located inside the side plate of the cabinet body for rotating the operating rod that rotates around the left-right axis in the latch device of each stage drawer.
Accordingly, as in the case of an all-lock device using an interlocking mechanism formed between upper and lower drawer end plates as in Patent Document 1, the interlocking operation in the case where a vertical displacement occurs in the upper and lower drawers. With the interlocking mechanism including the interlocking operation part located inside the side plate of the cabinet body, the interlocking operation is reliably performed even when a vertical misalignment occurs in the upper and lower drawers. be able to.
Therefore, it is possible to improve the reliability of the operation for making the all-locked state in which the drawers of the plurality of stages are collectively locked and the operation for making the unlocked state in which any drawer can be pulled out.
In addition, when the lock is an electronic lock and the all-lock device is operated by the actuator, the operation for setting the all-lock state by simply moving the lock piece (for example, sliding movement) by the actuator, and the lock An operation for setting the release state can be performed.
Therefore, power saving of the electronic lock can be achieved. In particular, even when the electronic lock is a battery type and the actuation force of the actuator is weak, a stable and reliable operation is possible.

Here, the lock piece moves directly,
At the time of locking the lock, an operating rod interlocking portion that rotates integrally with the operating rod, provided in a drawer provided with the lock, is orthogonal to the operating direction of the lock piece with respect to the locking portion of the lock piece. Abutting in the direction, rotation of the operating rod is blocked by the lock piece,
In a preferred embodiment of the present invention, when the lock is unlocked, the locking piece moves directly so that the locking portion of the lock piece is detached from the operation lever interlocking portion (Claim 2).
Further, when unlocking the lock, in conjunction with the rotation of the pull of the drawer other than the drawer provided with the lock, the lifting rod provided on the inside of the side plate of the cabinet body is raised or lowered,
It is also a preferred embodiment that an operation rod interlocking portion that rotates integrally with the operation rod, which is provided in the drawer provided with the lock, is rotated in conjunction with the operation of the lifting rod (Claim 3).
In addition, an interlocking member that interlocks with the rotation of the operation rod of the drawer other than the drawer provided with the lock, protrudes rearward from the end of the operation rod,
On the inside of the side plate of the cabinet body, a pivot rod that pivots up and down in conjunction with the pivot of the interlocking member is pivotally supported by a pivot shaft in the left and right direction,
It is also a preferred embodiment that the elevating and lowering hoist is moved up and down in conjunction with the rotation of the rotating hoist (Claim 4).

Furthermore, between the pull handle of the drawer provided with the lock and the operating rod, and
A member that rotates between the puller of the drawer other than the drawer provided with the lock and the interlocking mechanism for preventing rotation of the operating rod or integrally with the puller of the drawer other than the drawer provided with the lock. And the operation lever rotation prevention interlocking mechanism,
In a more preferred embodiment, a clutch mechanism that cuts off the transmission of the rotational force of the handle to the operating rod at the time of locking the lock is provided (Claim 5).
According to such a configuration, in the all-locked state at the time of locking the lock, even if an excessive load is applied by pulling the drawer pull, the pull mechanism is idled by the clutch mechanism provided at each stage of the drawer. Since damage to the interlocking mechanism including the interlocking operation unit can be prevented, the reliability of the drawer all-lock device in the cabinet is further enhanced.

As described above, according to the drawer all-lock device in the cabinet according to the present invention, the following effects are mainly obtained.
(1) It is possible to improve the reliability of the operation for making the all-locked state in which a plurality of drawers are locked together and the operation for making the unlocked state in which any drawer can be pulled out.
(2) When the lock is an electronic lock and the all-lock device is operated by the actuator, it is possible to save electric power of the electronic lock, particularly when the electronic lock is a battery type and the operating force of the actuator is weak. However, stable and reliable operation is possible.

It is a perspective view of the cabinet provided with the drawer all lock device in the cabinet concerning an embodiment of the invention, and shows the lock state of the lock which closed the drawer. FIG. 6 is an enlarged cross-sectional plan view of a main part around a left latch device in the same state. It is the perspective view seen from the front which takes out and shows the operating rod rotation prevention mechanism and the operating rod rotation prevention interlocking mechanism in the same state. It is the principal part enlarged partial longitudinal cross-section front view similarly seen from the front. It is the principal part expansion perspective view seen from the back which shows the drawer pulling periphery which provided the lock | rock in the same state. It is the principal part expansion perspective view seen from the back which shows the interlocking operation part in the same state and the left latch device circumference. It is the principal part expansion perspective view seen from back which shows the right latch device circumference in the same state. It is the disassembled perspective view seen from the front which shows the drawer periphery of the drawer | drawer which provided the lock | rock. It is the disassembled perspective view seen from the front which shows the circumference of the upper part of an interlocking operation part. It is a perspective view of the cabinet provided with the drawer all lock device in the cabinet concerning an embodiment of the invention, and has shown the state where the drawer of the upper drawer was pulled in the unlocked state of the lock which closed the drawer. FIG. 6 is an enlarged cross-sectional plan view of a main part around a left latch device in the same state. It is the perspective view seen from the front which takes out and shows the operating rod rotation prevention mechanism and the operating rod rotation prevention interlocking mechanism in the same state. It is the principal part enlarged partial longitudinal cross-section front view similarly seen from the front. It is the principal part expansion perspective view seen from the back which shows the interlocking operation part in the same state and the left latch device circumference. It is the principal part expansion perspective view seen from back which shows the right latch device circumference in the same state. It is a perspective view of the cabinet provided with the drawer all lock device in the cabinet concerning an embodiment of the invention, and has shown the state where the drawer of the middle drawer was pulled in the unlocked state of the lock which closed the drawer. It is the perspective view seen from the front which takes out and shows the operating rod rotation prevention mechanism and the operating rod rotation prevention interlocking mechanism in the same state.

Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings.
The drawer all-lock device in the cabinet according to the embodiment of the present invention includes a battery-type electronic lock on one end plate of the cabinet drawer. Therefore, a battery is built in the end plate. The battery-type electronic lock includes an authentication unit, an actuator, and a battery.
The “battery” may be a non-rechargeable primary battery such as a manganese dry battery or an alkaline battery, or may be a rechargeable secondary battery such as a lead storage battery or a lithium ion battery.
The battery-powered electronic lock shown in the following embodiments includes an authentication unit adjacent to the handle. The authentication unit is not limited to a method of inputting a personal identification number with a numeric keypad or a touch panel, but may be a fingerprint authentication method, a method of electromagnetically inputting from a magnetic card, an LSI card, a smartphone, or the like.
In the present specification, the direction in which the drawer of the cabinet is pulled out is defined as the front, the direction in which the drawer is pushed in so as to be accommodated in the cabinet body is defined as the rear, and left and right are defined in a state of facing backward.

<Cabinet>
The cabinet 1 shown in the perspective view of FIG. 1 includes a cabinet body O including left and right side plates 37, 38, a top plate 39, and a back plate 40, and three upper and lower drawers H1, H2, H3 accommodated in the cabinet body O. Have
The cabinet 1 also includes latch devices L1, L2, and L3 that prevent the drawers H1, H2, and H3 from jumping out, and an all-lock device A for drawers in the cabinet according to the embodiment of the present invention.
The drawers H1, H2, H3 are provided with handles P1, P2, P3 on the end plate I,..., And the upper drawer H1 is provided with a battery-operated electronic lock B having an authentication part N adjacent to the handle P1.

<Latch device>
As shown in the perspective view of FIG. 1, the enlarged cross-sectional plan view of the main part of FIG. 2, the perspective view of FIG. 3, and the enlarged perspective view of the main part viewed from the rear of FIGS. 6 and 7, drawers H1, H2, H3 In the closed state, the latch claws 3A, 3B, 3C on the drawer side are engaged with the engagement portions 19A, 19B, 19C on the cabinet main body O side, so that the drawers H1, H2, H3 fly. Protruding is prevented.
The latch claws 3A, 3B, and 3C rotate around a vertical rotation shaft 16 having a bent piece 17 that bends inward in the left-right direction at the upper end, and are brought into engagement portions 19A, 19B, and 19C by an elastic piece 18. It is urged in the direction to go (outward in the left-right direction).

When one of the drawers P1, P2, and P3 of the drawers H1, H2, and H3 is pulled in the unlocked state of the electronic lock B, the electronic lock B is connected to the pullers P1, P2, and P3 and is supported so as to be rotatable about the left and right axis. The operating rods 2A, 2B, 2C rotate.
Thereby, the operation pieces 20A and 20A of the operation bodies 20 and 20 at the left and right ends of the operation rods 2A, 2B and 2C are rotated downward as shown in the upper diagram of FIG. 14 from the upper diagram of FIG. Therefore, the left and right bent pieces 17, 17 are operated, and the left and right rotating shafts 16, 16 are rotated.
Therefore, since the engagement state C with the engagement portions 19A, 19B, and 19C of the latch claws 3A, 3B, and 3C is released, it becomes the disengagement state D, so that any one of the drawers H1, H2, and H3 can be pulled out. it can.

<All lock device>
As shown in the perspective view of FIG. 3, the principal part enlarged partial vertical sectional front view of FIG. 4, and the principal part enlarged perspective view seen from the rear of FIG. 5, the all-lock device A is in the locked state L of the electronic lock B. In the operation lever rotation prevention mechanism E that prevents the rotation of the operation rod 2A of the drawer H1 provided with the electronic lock B by the lock piece 4 that is moved by the locking and unlocking operation of the lock B, and when the electronic lock B is locked L, An interlock located inside the side plate 37 (see FIG. 1) of the cabinet body O that interlocks with the operation rod rotation prevention mechanism E so as to prevent the rotation of the operation rods 2B and 2C of the drawers H2 and H3 other than the drawer H1. An operating rod rotation prevention interlocking mechanism G including the operating unit F is provided.

(Operating rod rotation prevention mechanism)
As shown in the front view of the enlarged main portion of FIG. 4, the enlarged perspective view of the main portion viewed from the rear of FIG. 5, and the exploded perspective view of FIG. 8, the handle P <b> 1 includes the first cylindrical portion 21 and the first cylindrical portion 21. The clutch body 31, the second cylindrical portion 22, and the third cylindrical portion 23 are integrally formed.
The operating rod 2A, which is the angular axis of the upper drawer H1, is inserted through the round hole 21A extending from the first cylindrical portion 21 to the first clutch body 31, and is inserted into the square hole 32B of the second clutch body 32.
The second clutch body 32 meshes with the first clutch body 31 while being pressed toward the first clutch body 31 by the compression coil spring 33.
As shown in the front view of the enlarged main portion of FIG. 4 and the exploded perspective view of FIGS. 8 and 9, the left end portion of the operating rod 2A has a round hole 22A of the second cylindrical portion 22 and a round of the interlocking member 24. The left operating body 20 is inserted through the hole 24C, the round hole 23A of the third cylindrical portion 23, the round hole 15B of the end connecting body 15, the connecting pipe 11A, and the round hole 12A of the end connecting body 12. Is inserted into the square hole 20B.
Further, the right end portion of the operating rod 2A is fitted into the square hole 20B of the right operating body 20.

The actuator M that operates when unlocking the electronic lock B has been successfully authenticated is, for example, a plunger-type solenoid that reciprocates linearly in the vertical direction, and an operation piece 29 is connected to an operation body 30 that operates integrally with the plunger. Reference numeral 29 is supported so as to be rotatable about a rotation support shaft Y in the front-rear direction.
The locking piece 4 that is long in the left-right direction is supported so as to be slidable in the left-right direction, and a connecting projection 28A that protrudes forward from the right end of the connecting body 28 is inserted into the connecting hole 4C at the left end. The upper end portion of the operation piece 29 driven by the actuator M is engaged with the operation convex portion 28B protruding forward.
Therefore, when the actuator M is driven, the plunger is sucked downward, and the operating body 30 is lowered from the position shown in FIG. 4 to the position shown in FIG. 13, the operating piece 29 rotates counterclockwise. Move to the left.

When the electronic lock B shown in FIG. 4 is locked L, the locking portion 4A of the lock piece 4 locks the locking portion 32A of the second clutch body 32. Therefore, even if the pulling handle P1 is pulled, the second clutch body 32 is pulled. Cannot rotate.
The second clutch body 32 is fitted with an operating rod 2A, which is a square shaft, and the operating rod 2A cannot be rotated, so that the engagement state C of the latch device L1 is maintained. Even if the operation is performed, the drawer H1 cannot be pulled out.
The electronic lock B has a simple structure in which the locking portion 4A of the lock piece 4 is locked to the locking portion 32A of the second clutch body 32 that is an operation rod interlocking portion that rotates integrally with the operating rod 2A. At the time of locking L, an operating rod rotation prevention mechanism E that prevents the rotation of the operating rod 2A of the drawer P1 provided with the electronic lock B is constituted by the lock piece 4 that is moved by the locking and unlocking operation of the electronic lock B.

(Linked operation section)
As shown in FIGS. 1 and 3, an interlocking operation unit F is provided inside the left side plate 37 of the cabinet body O. The interlock operation unit F may be provided inside the right side plate 38 of the cabinet body O.
The interlocking operation unit F is supported so as to be movable up and down. For example, the lifting rod 5 elastically biased downward, the upper and lower connecting members 6A, 6B, 6C fixed to the lifting rod 5, the connecting members 6A, 6B, Projection pieces 7A, 7B, 7C projecting inward (rightward) from 6C and a pivot rod that pivots in the vertical direction around pivot shafts X1, X2, X3 in the horizontal direction located in front of the lifting rod 5 8A, 8B, 8C, and interlocking members 10A, 10B, 10C that are rotatable about the left-right axis and are in contact with the projecting pieces 9A, 9B, 9C at the front ends of the rotary rods 8A, 8B, 8C.
In addition, you may comprise so that the raising / lowering rod 5 may descend | fall with its own weight, without elastically biasing the raising / lowering rod 5 below.

(Operating rod rotation prevention interlock mechanism)
As shown in FIGS. 4 to 6 and FIGS. 8 and 9, the operating rod rotation prevention interlocking mechanism G includes an interlocking operation part F, and is extended from the interlocking operation part F to the drawers H1, H2, and H3 of each stage. Includes parts to be joined.
That is, in the upper drawer H1, as shown in FIG. 4, FIG. 8, and FIG. 9, the tooth portion 24B of the interlocking member 24 coaxial with the operating rod 2A meshes with the tooth portion 25A of the upper interlocking member 25 and interlocks. One end of the left and right connecting rod 27, which is a square axis, is fitted into the square hole 25B of the member 25, and the other end of the left and right connecting rod 27 is fitted into the square hole 26B of the interlocking member 26. Comes into contact with the interlocking operating portion 15A of the end connecting body 15 at the right end of the connecting pipe 11A coaxial with the operating rod 2A.
Further, the left end connector 12 of the connection pipe 11 </ b> A is connected to the interlocking member 10 </ b> A via the left and right connection rods 14 and the connection arms 13.
Here, the integral connecting arm 13 and the interlocking member 10A are supported by a support member (not shown) so as to be rotatable coaxially with the operation rod 2A.
Therefore, the rotation of the interlocking member 24 is interlocked with the interlocking member 10A.

In the middle drawer H2, as shown in FIGS. 3 and 6, the connecting pipe 11B that is integral with the pull handle P2 is integral with the first clutch body 34, and the operation rod 2B that is the angular axis of the middle drawer H2. Are fitted into the square holes of the second clutch body 35, the square holes of the operating body 20, and the square holes of the interlocking member 10B.
Therefore, the operating rod 2B rotates in conjunction with the interlocking member 10B.
Here, the second clutch body 35 meshes with the first clutch body 34 while being pressed toward the first clutch body 34 by the compression coil spring 36.
Further, since the structure is the same as that of the lower drawer H3 and the middle drawer H2, the operating rod 2C rotates in conjunction with the interlocking member 10C.

4 and 8, when the electronic lock B is locked L, the locking member 4B of the lock piece 4 is locked to the locking portion 24A of the interlocking member 24, so that the interlocking member 24 cannot rotate. .
In order to pull out the middle drawer H2 or the lower drawer H3, the latch devices L2 and L3 need to be in the disengaged state D. For this purpose, the operating rods 2B and 2C need to be rotated.
In order to rotate the operation rods 2B and 2C, it is necessary to rotate the interlocking members 10B and 10C fixed to the ends of the operation rods 2B and 2C downward.

However, since the interlocking member 24 cannot rotate, the interlocking members 25 and 26, the end connecting body 15, the connecting pipe 11A, the end connecting body 12, and the interlocking member 10A cannot also rotate. The rotating rod 8A shown cannot be rotated so that the rear side rises counterclockwise around the rotation support shaft X1.
Therefore, since the elevating rod 5 cannot be raised, the projecting pieces 9B and 9C of the rotating rods 8B and 8C cannot be pushed down. Thereby, since the interlocking members 10B and 10C cannot be rotated downward, the operation rods 2B and 2C cannot be rotated.
That is, the stoppers 4B of the locking piece 4 are stopped against the stoppers 24A of the interlocking member 24 that is an operating lever interlocking part that rotates integrally with the operating levers 2B and 2C. Movement is blocked.
As described above, when the electronic lock B shown in FIGS. 1 and 3 is locked L, even if the pulling handle P2 of the middle drawer H2 or the pulling handle P3 of the lower drawer H3 is pulled, the operation rod is prevented from rotating. Since the engagement state C of the latch devices L2 and L3 is maintained by the mechanism G and the latch devices L2 and L3 cannot be brought into the disengagement state D, the drawers H2 and H3 cannot be pulled out.

<Operation at unlocking>
(Operation to pull out the upper drawer)
In the unlocking UL when the authentication of the electronic lock B is successful, as described above, the actuator M is operated and the state shown in FIG. 13 is reached, and the locking portion 4A of the lock piece 4 is locked to the locking portion of the second clutch body 32. Since it is disengaged from 32A, by pulling the handle P1 of the upper drawer H1, the first clutch body 31 rotates and the second clutch body 32 and the operating rod 2A rotate.
Therefore, the perspective view of FIG. 10, the principal part expansion cross-sectional plan view of FIG. 11, the perspective view of FIG. 12, the principal part enlarged partial longitudinal cross-sectional front view of FIG. 13, and the principal part expansion seen from the back of FIG. As shown in the perspective view, along with the rotation of the operating rod 2A, the bending piece 17 is operated by the operation piece 20A of the operating body 20 and the rotation shaft 16 rotates. Thereby, the latch claw 3A is separated from the engaging portion 19A, and the latch device L1 is in the disengaged state D, so that the drawer H1 can be pulled out.

(Operation to pull out the middle drawer)
In the unlocking UL when the authentication of the electronic lock B is successful, as described above, the actuator M is operated and the state shown in FIG. 13 is reached, and the locking portion 4B of the lock piece 4 is moved from the locking portion 24A of the interlocking member 24. Since it comes off, the interlocking member 24 can be rotated.
Thereby, since the raising / lowering rod 5 of the operating rod rotation prevention interlocking mechanism G interlocking as described above can be lifted as indicated by the arrow Q in FIG. 17, the interlocking member 10B can be rotated downward.
Therefore, as shown in the perspective views of FIGS. 16 and 17, when the puller P2 of the middle drawer H2 is pulled, the connecting pipe 11B integral with the puller P2 rotates, the interlocking member 10B and the operating rod 2B rotate, and the operation Along with the rotation of the collar 2B, the bending piece 17 is operated by the operation piece 20A of the operation body 20 and the rotation shaft 16 rotates. Thereby, the latch claw 3B is separated from the engaging portion 19B, and the latch device L2 is in the disengaged state D, so that the drawer H2 can be pulled out.

(Operation to pull out the lower drawer)
In the unlocking UL when the authentication of the electronic lock B is successful, the latch device L3 is brought into the disengagement state D by pulling the puller P3 of the lower drawer H3 in the same manner as the operation of pulling out the middle drawer H2. Can be pulled out.

<Operation of clutch mechanism>
As shown in FIG. 3, the all-lock device A includes clutch mechanisms J1, J2, and J3.

As shown in FIGS. 4 and 5, the first clutch body 31, the second clutch body 32, and the compression coil spring 33 constitute a clutch mechanism J1.
At the time of locking L of the electronic lock B shown in FIG. 4, as described above, the locking portion 4A of the lock piece 4 locks the locking portion 32A of the second clutch body 32. The clutch body 32 cannot rotate.
When the force pulling the pull P1 is large and the torque applied to the first clutch body 31 of the clutch mechanism J1 is large, the second clutch body 32 moves to the left against the urging force of the compression coil spring 33. The pull clutch P1 integrated with the first clutch body 31 and the first clutch body 31 idles, and the clutch mechanism J1 interrupts transmission of the rotational force.

As shown in FIG. 6, the first clutch body 34, the second clutch body 35, and the compression coil spring 36 constitute a clutch mechanism J2.
At the time of locking L of the electronic lock B shown in FIG. 4, as described above, the locking portion 4B of the lock piece 4 is locked to the locking portion 24A of the interlocking member 24. The operating rod 2B, the second clutch body 35, the operating body 20, and the interlocking member 10B shown in FIG. 6 interlocked with the interlocking member 24 cannot rotate.
When the pulling force of the puller P2 shown in FIG. 3 is large and the torque applied to the first clutch body 34 of the coupling pipe 11B and the clutch mechanism J2 integrated with the puller P2 is large, the second clutch body 35 is compressed by the compression coil spring 36. Therefore, the first clutch body 34 and the pulling handle P2 integrated with the first clutch body 34 idle, and the clutch mechanism J2 interrupts the transmission of the rotational force.
Further, the clutch mechanism J3 shown in FIG. 3 operates in the same manner as the clutch mechanism J2.

  With the clutch mechanisms J1 to J3 provided at the respective stages of the drawers H1 to H3 having the above-described configuration, in the all-locked state when the electronic lock B is locked, the drawers P1 to P3 of the drawers H1 to H3 are pulled to be excessive. Since the pulls P1 to P3 run idle even when a load is applied, it is possible to prevent damage to the interlocking mechanism including the interlocking operation unit F (the operating rod rotation blocking mechanism E and the operating rod rotation blocking interlocking mechanism G). The reliability of the all lock device A is improved.

<Operation of mechanical locks juxtaposed with electronic locks>
When the electronic lock B shown in FIG. 4 is locked L, when the actuator M cannot be energized due to battery exhaustion or the like, the lock piece 4 can be moved using the mechanical lock K to be unlocked.
That is, in FIG. 4, when the key is inserted into the keyhole of the mechanical lock K and the mechanical lock K is rotated to the unlocked state, the dead bolt 41 rises and pushes the inclined surface 28C of the coupling body 28. It moves to the left and becomes the unlocked state UL as in FIG.

<Effects of the drawer all-lock device in the cabinet>
As described above, the latch devices L1 to L3 for preventing the drawers of the upper and lower drawers (for example, the upper and lower drawers H1 to H3) accommodated in the cabinet body O from being ejected, and the electronic lock B to one of the drawers H1. In the cabinet 1 provided with the above, the all-lock device A that collectively locks the drawers H1 to H3 of all the stages turns the operation rods 2A to 2C that rotate around the left and right axis in the latch devices L1 to L3 of the drawers of each stage. Is constituted by an interlocking mechanism (operating rod rotation preventing mechanism E and operating rod rotation preventing interlocking mechanism G) including an interlocking operation portion F located inside the side plate 37 of the cabinet body O.
Accordingly, as in the case of an all-lock device using an interlocking mechanism formed between upper and lower drawer end plates as in Patent Document 1, the interlocking operation in the case where a vertical displacement occurs in the upper and lower drawers. Can be moved up and down by an interlocking mechanism (operating rod rotation prevention mechanism E and operating rod rotation prevention interlocking mechanism G) including an interlocking operation portion F located inside the side plate 37 of the cabinet body O. Even if a positional deviation in the front-rear direction occurs in the drawer, the interlocking operation can be reliably performed.
Therefore, it is possible to improve the reliability of the operation for making the all-locked state in which the drawers H1 to H3 of the plurality of stages are collectively locked and the operation for making the unlocked state in which any of the drawers H1 to H3 can be withdrawn.
In addition, when the lock is the electronic lock B and the all-lock device A is operated by the actuator M, the lock M 4 can be brought into the all-locked state simply by moving the lock piece 4 (for example, sliding movement) by the actuator M. An operation and an operation for entering the unlocked state can be performed.
Therefore, power saving of the electronic lock B can be achieved. In particular, even when the electronic lock B is a battery type and the actuation force of the actuator M is weak, a stable and reliable operation is possible.

In the above description, in order to bring the latch devices L2 and L3 of the drawers H2 and H3 into the disengaged state D, an example has been shown in which the elevating rod 5 constituting the operating rod rotation prevention interlock mechanism G is raised. In order to bring the latch devices L2 and L3 of the drawers H2 and H3 into the disengaged state D, the elevating rod 5 may be lowered. In that case, the lifting / lowering rod 5 may be always elastically biased upward.
In the above description, the case where the lock provided on one of the drawers of the cabinet is the electronic lock B is shown, but the lock may be a mechanical lock such as a cylinder lock or a dial lock.
Furthermore, in the above description, an example in which the power source of the electronic lock is a battery has been shown, but since the power saving can be achieved by the present invention, the power source of the electronic lock is not limited to the battery, For example, the power source may be a commercial power source or a private power generation facility.
Furthermore, in the above description, the configuration in which the all-lock device A includes the clutch mechanisms J1 to J3 is shown. However, in the all-lock device A, the clutch mechanisms J1 to J3 are not essential, and the clutch mechanisms J1 to J3 are not included. You may make it suppress directly the motion of the pulls P1-P3 at the time of locking of a lock | rock, without providing.

1 Cabinet 2A, 2B, 2C Operation rod 3A, 3B, 3C Latch claw 4 Lock piece 4A, 4B Stopping portion 4C Connection hole 5 Lifting rod 6A, 6B, 6C Connection body 7A, 7B, 7C Projection piece 8A, 8B, 8C Rotating rod 9A, 9B, 9C Projection piece 10A, 10B, 10C Interlocking member 11A, 11B, 11C Connecting pipe 12 End link 12A Round hole 13 Linking arm 14 Left and right connecting rod 15 End link 15A Interlocking operation unit 15B Round Hole 16 Rotating shaft 17 Bending piece 18 Elastic piece 19A, 19B, 19C Engaging portion 20 Operating body 20A Operating piece 20B Square hole 21 First cylindrical portion 21A Round hole 22 Second cylindrical portion 22A Round hole 23 Third cylindrical portion 23A Round hole 24 Interlocking member 24A Stop part (operating rod interlocking part) 24B Tooth part 24C Round hole 25 Interlocking member 25A Tooth part 25B Square hole 26 Interlocking member 26A Interlocking operation part 26 Square hole 27 Left and right connection rod 28 Connection body 28A Connection convex portion 28B Operation convex portion 28C Inclined surface 29 Operation piece 30 Operation body 31 First clutch body 32 Second clutch body 32A Stopping portion (operation rod interlocking portion) 32B Square hole 33 Compression coil spring 34 First clutch body 35 Second clutch body 36 Compression coil springs 37, 38 Side plate 39 Top plate 40 Back plate 41 Dead bolt A All lock device B Battery-operated electronic lock C Engagement state D Disengagement state E Operating rod rotation prevention mechanism F Interlocking operation part G Operating rod rotation prevention interlocking mechanism H1, H2, H3 Drawer I End plate J1, J2, J3 Clutch mechanism K Mechanical lock L When locked (locking state of electronic lock)
L1, L2, L3 Latch device M Actuator N Authentication part O Cabinet body P1, P2, P3 Pulling UL When unlocked (Electronic lock unlocked)
X1, X2, X3, Y Rotating spindle

Claims (5)

In a cabinet comprising a cabinet body, upper and lower drawers accommodated in the cabinet body, a latch device for preventing the drawer from popping out, and a lock provided in one of the drawers, all stages of the cabinet An all-lock device that can lock the drawers in a batch,
The latch device operates the latch claw on the drawer side by an operation rod connected to the drawer pull and pivots about a left-right axis, and engages the latch claw with the engagement portion on the cabinet body side. The state and the disengaged state can be switched,
An operation rod rotation preventing mechanism for preventing rotation of the operation rod of the drawer provided with the lock by a lock piece that is moved by an operation of locking and unlocking the lock at the time of locking the lock;
Positioned on the inside of the side plate of the cabinet body that interlocks with the operation lever rotation prevention mechanism to prevent rotation of the operation rod of the drawer other than the drawer provided with the lock when the lock is locked. And an operation lever rotation interlocking mechanism including an interlocking operation part to perform,
When the lock is locked, the operation rod rotation prevention mechanism and the operation rod rotation prevention interlock mechanism prevent the operation rods of the drawers in all stages from rotating, and the latch device maintains the engaged state. By doing so, it becomes an all-locked state where all the drawers are locked together,
When the lock is unlocked, the state where the operation rods of the drawers of all the stages are prevented from being turned all at once, and by pulling the handle of the drawer of each stage, the latch device of the drawer is released. In the disengaged state,
All-lock device for drawers in cabinets. The lock piece moves directly,
At the time of locking the lock, an operating rod interlocking portion that rotates integrally with the operating rod, provided in a drawer provided with the lock, is orthogonal to the operating direction of the lock piece with respect to the locking portion of the lock piece. Abutting in the direction, rotation of the operating rod is blocked by the lock piece,
At the time of unlocking the lock, the locking piece moves directly, so that the locking portion of the locking piece comes off from the operation lever interlocking portion.
An all-lock device for drawers in a cabinet according to claim 1. When unlocking the lock, in conjunction with the rotation of the drawer pulls other than the drawer provided with the lock, the lifting rod provided inside the side plate of the cabinet body is raised or lowered,
In conjunction with the operation of the lifting rod, an operation rod interlocking portion that rotates integrally with the operation rod, which is provided for the drawer provided with the lock, rotates.
An all-lock device for drawers in a cabinet according to claim 1 or 2. An interlocking member that interlocks with the rotation of the operation rod of the drawer other than the drawer provided with the lock, and projects backward from the end of the operation rod;
On the inside of the side plate of the cabinet body, a pivot rod that pivots up and down in conjunction with the pivot of the interlocking member is pivotally supported by a pivot shaft in the left and right direction,
The elevating rod moves up and down in conjunction with the rotation of the rotating rod.
An all-lock device for drawers in a cabinet according to claim 3. Between the pull handle of the drawer provided with the lock and the operating rod, and
A member that rotates between the puller of the drawer other than the drawer provided with the lock and the interlocking mechanism for preventing rotation of the operating rod or integrally with the puller of the drawer other than the drawer provided with the lock. And the operation lever rotation prevention interlocking mechanism,
When locking the lock, it comprises a clutch mechanism that cuts off the transmission of the pulling force to the operating rod.
An all-lock device for drawers in the cabinet according to claim 1.

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