JP2756080B2 - Safety device and control method in three-dimensional warehouse - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention provides a warehouse equipped with stack car equipment, safety devices for ensure the safety of the personnel during repair and inspection such as the stack car instrumentation置等and
Those concerning the control method for the safety.

[0002]

2. Description of the Related Art Two shelves having storage shelves arranged vertically and horizontally are arranged opposite to each other, a passage is formed between the two shelves, and a transport unit which can be moved up and down is provided in the passage. the by arranging the stacker apparatus freely traveling with, this stack car equipment, the warehouse consisting configured to out an article between the storage rack and the inlet-outlet unit, the repair of the stacker apparatus like As a safety device for ensuring the safety of workers entering the passage during inspection, Japanese Patent Laid-Open No. 64-28101 discloses an automatic operation mode and a manual operation mode provided on an operation panel for automatic operation provided outside a three-dimensional warehouse. A changeover switch for switching to an operation mode; a first key for a changeover operation is detachably provided to the changeover switch; and an opening / closing door provided on a safety fence for enclosing a block intruding into the passage. The second can be inserted and removed at its inside 2
A key switch having a key is provided, and the key switch is configured so that the opening operation of the first key enables the opening operation of the second key and the extraction of the second key. It has been proposed that the power switch box is also provided in the safety fence so that the lid of the power switch box can be opened and closed with the second key.

[0003] This safety device of the prior art is designed so that the operator can operate the stacker device only in the manual mode at the time of repair and inspection, so that other operators can inadvertently operate the stacker device from an operation unit provided outside the three-dimensional warehouse. Switching to the automatic operation mode can be prevented.

[0004]

However, in this configuration, the inadvertent erroneous operation on the operation panel unit by a third party is prevented by executing the operation of the two keys at different places. In addition, for the operator who performs repairs and inspections, the number of operation locations using the two keys increases, such as the operation panel, the key switch, and the power switch box, which causes a problem that the operation becomes extremely complicated.

Further, the automatic operation mode is turned off on the operation panel while the stacker device is running.
Alternatively, if the operation mode is suddenly switched to the manual operation mode, the stacker device stops suddenly. If a tall object such as a stacker crane suddenly stops, a large stress (negative acceleration) is applied to the parts, which is not preferable. There were also problems.

[0006] The present invention is directed to overcoming these problems.

[0007]

Means for Solving the Problems The safety device of the present invention for achieving the above object, as described in claim 1, "Osamu
Shelf unit with storage shelves arranged in a matrix vertically and horizontally
And bets, and a inlet-outlet unit which is provided adjacent to the shelf unit is provided with a passage capable of passing people during repair and inspection such as to extend along the front surface of the shelf unit and inlet-outlet unit, the With a stacker device running along the aisle,
Articles are taken in and out between the loading / unloading section and the shelf unit
In a three-dimensional warehouse having a door for the passage , an electric lock for locking the door in a closed state is provided.
The lock is unlocked by an input operation from outside the warehouse.
Provided as further, when there is an input unlock command to the electric lock during operation of the stacker device, the stacker
-Holds the standby state until the device
When the operation stop signal of the tucker device is received, the electric lock is unlocked.
Configuration of the control unit Ru provided "for controlling to perform a driving
I made it. In this case, as described in claim 2, the door
A door open / close detector that detects opening and closing movements is provided, and the electric lock is unlocked.
When the door open / close detector detects that the door is
Suitable to set so that the power supply to the car device is cut off
It is. Further, according to the present invention,
In addition to the configuration based on the same premise as in claim 1, a door for a passage is provided.
In the girder warehouse, "Electric lock and stacker device
When an electric lock release command is input, the stacker
When the device is in operation, the electric lock is not
-Hold the standby state until the operation of the
When the locker device stops operating, the electric lock is unlocked.
In conjunction with the release of the electric lock.
Set to turn off the power to the stacker device. "
It also includes a method for controlling a three-dimensional warehouse having the above configuration.

[0008]

Next, an embodiment of the present invention will be described. FIG. 1 is a perspective view of a three-dimensional warehouse 1 for storing a file holder 4 for storing medical records or the like in a hospital or the like, and FIG. 2 is a diagram showing the inside thereof. The three-dimensional warehouse 1 includes a pair of shelf units 2 and 2 arranged opposite to each other.
A large number of storage shelves 3 are arranged in a matrix in both the shelves 2 and 2. Double shelf unit 2,2
Between them, a passage through which a person can pass for repair, inspection, or the like is formed, and a stacker device 6 is movably arranged on a rail 5 arranged along the longitudinal direction of the passage.
A shelf unit 7 is provided on one side of the shelf unit 2. The stacker device 6 includes a vertically long column 8, and a transport unit 9 is attached to the column 8 so as to be vertically movable. The combination of the traveling of the stacker device 6 and the vertical movement operation of the transport unit 9 causes the cart 1 put in the loading / unloading section 7.
0 is stored in an arbitrary storage shelf 3 or the file holder 4 is transferred from an arbitrary storage shelf 3 to a trolley 10.
Or can be taken out.

FIG. 3 shows functional blocks of the safety device of the present invention. On the front surface of the three-dimensional warehouse 1, a door 11 for preventing entry into the passage is provided so as to be openable and closable, and the door 11 is provided with an electric lock 12 for locking the door 11,
An entry / exit operation unit 13 is arranged outside the three-dimensional warehouse 1 (in the embodiment, the outer surface of the three-dimensional warehouse 1). On the other hand, a reception terminal (not shown) and a controller 15 of the entry / exit unit operating unit 13 are connected to a host computer 14 installed at an appropriate place outside the three-dimensional warehouse 1, and a file holder to be entered / exited from the terminal is connected. 3 is input and stored in a data storage device (not shown). When an operation button of a storage command or a storage command is pressed in the storage / operation unit 13, the signal is transmitted to the operation controller 16 mounted on the stacker device 6 via an optical transmission path or a signal line, and is transmitted along the rail 5. Then, operations such as traveling, lifting and lowering of the transport unit 9 and loading and discharging of the file holder 3 are executed. Reference numeral 30 denotes a power supply unit. The power supply unit 30 serves as a power supply for controlling the controller 15 of the loading / unloading unit operation unit 13, and also operates the drive motor 17 for operation, the drive motor 17 for the stacker device 6, and the It is a power source for the drive motor 18 and the like.

As shown in FIG. 3, the electric lock 12 is moved in and out by an actuator 20 such as an electromagnetic solenoid.
A bar 22 which is engaged with and disengaged from an engaging portion 21 at an entrance, and a cylinder lock 23 which operates the bar 22 by rotating a manual key.
When a unlock detector 24 such as a limit switch for detecting the state of Noriko to be in閂杆22 unlocked position, door 11 is closed
The inlet of the member 26 out when and and a door opening and closing detector 25 for sensing the contact with the door closed state. Cylinder lock 2
When the bar 22 is retracted (in the unlocked state), the rotating piece 27 does not contact (engage) with the pin 29 protruding from the side surface of the bar 22, and the bar 22 moves forward. When the cylinder lock 23 is turned in the unlocking direction while the lock is in the unlocked state, the pin 29 is pushed by the turning piece 27, and the bar 22 is retracted and unlocked.

Reference numeral 28 denotes a lock detecting means for detecting whether the bar 22 is fitted to the engaging portion 21 at the entrance and discriminating whether or not the lock is performed. The lock detecting means 28 uses a limit switch or the like which is turned on when it comes into contact with the bar 22 that has entered the engaging portion 21. In this way, even if the bar 22 protrudes, the locked state of the door 11 cannot be guaranteed unless it is fitted to the engaging portion 21 on the entrance side.
1 can be guaranteed. Further, the electric lock 12 is provided on the member 26 side of the doorway, and the engaging portion 21 is attached to the door 1.
It may be provided on one side.

The controller 15 of the loading / unloading section operating section 13
When an unlock command is input to the electric lock 12 while the stacker device 6 is operating, the stacker device 6
The control means controls to execute the unlocking drive of the electric lock 12 after the operation of the electric lock 12 is completed. Next, FIGS. 4 and 5
The unlocking drive and the locking operation will be described with reference to the flowchart of FIG. FIG. 4 is a subroutine flowchart of unlocking drive when the door 11 is to be opened for maintenance or inspection. After the start, it is determined whether the control power supply to the controller 15 is ON or OFF (step S1).
That is, at the time of a power failure or when the controller 1
When the manual unlocking is performed when the lock 5 is not activated, the control power of the controller 15 is in the OFF state.
The key is inserted and turned to remove the bar 22 from the engaging portion 21 on the entrance side. As a result, the contact point of the lock detecting means 28 on the side of the engaging portion 21 is kept OFF, while the contact point of the unlock detector 24 is kept ON (step S).
3). However, since the control power is in the OFF state, the contact state of the lock detecting means 28 and the unlock detector 24 is not determined by the controller 15.

In this way, the manual unlocking drive is performed. When the control power is on in step S2, that is, when the controller 15 is in the activated state,
The three-dimensional warehouse 1 is in an operating state, and the stacker device 6 and the like may be moving. In this state, the controller 15
The user inputs a request to unlock the electric lock 12 of the door 11 (step S4). This unlocking request is executed by reading an ID card by an ID card reading unit (not shown) or by inputting a predetermined password into an input unit of a numeric keypad. Even if the unlock request is made, the operation waits for the operation to be completed while the stacker device 6 is operating, for example, while traveling (step S5). For example, a predetermined storage shelf 3
When the stacker device 6 is traveling toward
The process waits until the operation of storing the file holder 4 in the predetermined storage shelf 3 is completed.

When the operation of the stacker device 6 is completed at step S5 (yes at step S5), a predetermined signal is output to the actuator 20 to retreat the bar 22 from the engaging portion 21 to unlock (step S5). S6). When the unlocking is completed, the contact of the lock detecting means 28 is kept in the OFF state, while the contact of the unlock detector 24 is kept in the ON state (step S7). Next, when the worker opens the door 11 (step S8, yes), the door open / close detector 25 is turned off.
In this state, the power supply from the power supply unit 30 to the stacker device 6 is cut off (step S9). The power-off of the power supply in step S9 may be executed before step S6 or concurrently with the unlocking operation of the electric lock in step S6.

FIG. 5 shows a subroutine flow chart showing the operation of closing the door 11 after the maintenance / inspection work is completed. When the control power is supplied to the controller 15, the start and then the door open / close detector 25 Door 1
1 is determined to be closed (step S10, ye
s) Contrary to the above, the power source is turned on (step S11). Next, it is determined in step S12 whether or not the contact of the lock detecting means 28 is OFF and the contact of the unlock detector 24 is kept ON. If yes at the step S12, conductive Kijo 1 2 is unlocked, in the case of no a locked state. This state of no means that the worker did not use the cylinder lock 23 and did not release the electric lock 12,
This means that the door 11 was not opened.

If the answer is yes in step S12, the controller 15 operates the actuator 20 to perform the home return operation of projecting and locking the bar 22 (step S13). Thereby, the lock detecting means 28
Is ON, and the contact of unlock detector 24 is OF
It is kept in the F state. Next, in step S14, the stacker 6 is returned to the home position (including the operation of returning to the home position along the rail 5, including the X direction and the Y direction of the transport unit 9).
After confirming the coordinate origin of the direction)
The operation returns to the normal operation of taking the file holder 4 from the loading / unloading section 7 into the transport unit 9 and performing the storing operation to the storage shelf 3 or the removal of the file holder 4 from the storage shelf 3 (step S15). .

If the determination in step S12 is "no", that is, if the door 11 is not opened, the home return operation of the electric lock 12 and the home return operation of the stacker device 6 are omitted and the normal operation starts. (Step S15).
In this way, since the use state of the door 11 can be determined after the control power supply is turned on, the normal operation can be promptly started by omitting the origin return operation of the two.

As described above, even if there is a command to open the door 11 to the aisle for repair and inspection of the three-dimensional warehouse, while the stacker device 6 is operating, the door remains open until the operation is completed and stopped. Since the electric lock 12 for opening the lock 11 is not unlocked, it is possible to prevent accidents such as contact with the moving stacker device when the worker opens the door and enters the passage, and at the same time, as in the related art. When the door 11 is opened, the situation where the power supply is shut off and the stacker device 6 suddenly stops to cause stress can be eliminated.

Further, when the control power supply is turned on again to the controller 15, the electric lock 1
Since the unlocked or locked state of No. 2 and the opened or closed state of the door 11 can be confirmed, there is also an effect that the operator does not need to perform troublesome work such as double key operation as in the related art.

[0020]

As described above [Operation and Effect of the Invention According to the present invention, even when unlocking operating the electric lock by an input operation from the outside of the warehouse, the electric lock during operation of the stack car equipment is without being unlocked, the operation of the stack car equipment can not open the door and do not stop. In other words, despite be capable to open the door by an input operation of the electric lock can be prevented to open the door during the operation of the stack car instrumentation <br/> location. Therefore, it is possible to prevent accidents such as a worker entering the passage coming into contact with the moving stacker device and to secure the worker's safety while performing a simple unlocking operation. Moreover, since it is not the stacker apparatus is stopped suddenly by opening the conventional door so it may prevent the stress stack car instrumentation置等occurs. Further, it is configured as in claims 2 and 3.
And the stacker after unlocking the electric lock or opening the door
-Equipment is not activated, ensuring worker safety
Is done.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view of a three-dimensional warehouse.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a functional block diagram of a control unit.

FIG. 4 is a subroutine flowchart of an unlocking operation.

FIG. 5 is a subroutine flowchart of a locking operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Three-dimensional warehouse 2 Shelf unit 3 Storage shelf part 6 Stacker device 9 Transport unit 11 Door 12 Electric lock 13 Entry and exit part operation part 15 Controller 16 Operation controller 20 Actuator 22 Bar rod 23 Cylinder lock 24 Unlock detector 25 Door open / close detector 28 Lock detection means 30 Power supply unit

Continuation of the front page (72) Inventor Shinichi Murakoshi 1-4-1-12 Imafukuhigashi, Joto-ku, Osaka Inside Ito-Kikulebio Co., Ltd. (56) References JP-A-64-28101 (JP, A) JP-A-5 −186010 (JP, A) Japanese Utility Model 1-169511 (JP, U) (58) Fields investigated (Int.Cl. ⁶ , DB name) B65G 1/00 B65G 1/04 E05B 47/00 E05G 1/00

Claims (3)

(57) [Claims] The storage shelves are arranged vertically and horizontally in a matrix.
It is provided with a lined shelf unit and a loading / unloading section provided adjacent to the shelf unit, and extends along a front surface of the shelf unit and the loading / unloading section through a passage through which a person can pass at the time of repair / inspection. Stacker that runs along the passage
Equipment to transfer articles between the loading / unloading section and the shelf unit.
In a three-dimensional warehouse comprising a door for the passage , an electric lock for locking the door in a closed state is provided .
Provided to be unlocked by an input operation from outside, and further, when an unlock command is input to the electric lock during operation of the stacker device, operation of the stacker device is stopped.
Hold the standby state until there is a signal, and
A safety device in a three-dimensional warehouse, comprising control means for performing control so as to execute unlocking drive of the electric lock when there is an operation stop signal . (2) In addition to the configuration of claim 1, the opening and closing movement of the door
A door open / close detector is provided to detect the electric lock and the electric lock is unlocked.
When the door open / close detector detects the opening movement of the door, the stacker
That the power to the
Safety equipment in a three-dimensional warehouse. (3) Storage shelves are arranged in a matrix up, down, left and right
A shelf unit arranged in a row and an input provided adjacent to the shelf unit.
Equipped with an outgoing department, which allows people to go through for repairs and inspections.
Along the front of the shelf unit and the loading / unloading section
Stacker that runs along the path
Equipment to transfer articles between the loading / unloading section and the shelf unit.
A door for the passage
An electric lock that locks the door closed
As unlocked by input operation from outside the body warehouse
In the three-dimensional warehouse that is provided, When the electric lock and the stacker device are unlocked by the electric lock command,
If input, electricity if stacker device is active
The lock is not unlocked and the stacker device stops operating
The standby state is maintained until the stacker device stops operating
Then, the electric lock is linked so as to be unlocked, and
Power supply to the stacker device in conjunction with unlocking drive of the lock
Three-dimensional warehouse, which is set to block
Storage control method.