JP2010247931A - Automatic warehouse system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic warehouse system preventing collision between a crane and a partition member. <P>SOLUTION: The automatic warehouse system 1 includes cranes 2A, 2B travelling on a travelling rail 4, ground control panels 3A, 3B for individually controlling the cranes 2A, 2B, a mechanical stopper 17 provided movably on the travelling rail 4 for partitioning the travelling area of the cranes 2A, 2B. Plugs 11A, 11B, sockets 12A, 12B connected to the plugs 11A, 11B during normal operation, and sockets 14A, 14B connected to a plug 13 for detecting the retraction of the cranes when the cranes 2B, 2A are retracted, are attached to the cranes 2A, 2B. Sockets 16A, 16B connected to the plugs 11A, 11B when the cranes 2B, 2A are retracted are attached to the ground control panels 3A, 3B. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an automatic warehouse system in which a plurality of cranes travel on the same travel route.

  As a conventional automatic warehouse system, for example, the one described in Patent Document 1 is known. The automatic warehouse system described in Patent Document 1 detects a plurality of stacker cranes that travel on a traveling road, a detachable safety fence (partition member) that divides the traveling road into two parts, and an installation position of the safety fence on the traveling road. A fence detector is provided, and a travelable range of a stacker crane that performs automatic conveyance work among a plurality of stacker cranes is set based on the installation position of the safety fence.

JP 2007-1692 A

  However, the following problems exist in the prior art. That is, when one of the stacker cranes breaks down, the stacker crane is retracted to the end of the travel path, and a safety fence is installed so as to close the travel path for repair work. At this time, since the central control device detects the installation position of the safety fence, it can detect the retracted state of the stacker crane. However, the stacker crane itself cannot detect whether the other stacker crane is retracted. For this reason, when the stacker crane is moved manually, the stacker crane may collide with the safety fence.

  The objective of this invention is providing the automatic warehouse system which can avoid the collision with a crane and a partition member.

  In an automatic warehouse system in which a plurality of cranes travel on the same travel route, the present invention is provided so as to be movable on the travel route, and controls a partition member that divides the travel range of each crane and each crane individually. A plurality of control units, a first connection member provided in each crane, a first connection receiving member provided in each crane and connected to the first connection member during operation of the crane, and provided in each control unit; A second connection receiving member connected to the first connection member when the crane is retracted, a second connection member for detecting the retracted state of the crane, and a third provided on each crane and connected to the second connection member And a connection receiving member.

  In such an automatic warehouse system of the present invention, for example, when two cranes travel on the same travel route, when retracting one of the cranes, the first connecting member provided on the crane and the first The connection with the connection receiving member is released, and the first connection member is connected to the second connection receiving member provided in the control unit. And a 2nd connection member is connected to the 3rd connection receiving member provided in the other crane. Then, the travel range of the other crane in the travel route is increased by moving the partition member to a position corresponding to the retracted position of one crane. By providing the second connection member for detecting the retracted state of the crane in this way, the crane can connect the third connection member to the third connection receiving member without receiving information from the control unit. Thus, it is possible to detect whether or not the other crane is retracted. Thus, when the crane is manually operated, for example, the crane can be controlled inside the crane to stop before the partition member, so that the crane can be prevented from colliding with the partition member. Become.

  Preferably, the apparatus further includes a fourth connection receiving member that is installed on the travel route side and is connected to the second connection member in a state where the partition member is in the normal position, and the second connection is provided when the partition member moves from the normal position. The connection between the member and the fourth connection receiving member can be released.

  If the partition member is not moved from the normal position in this way, the connection between the second connection member and the fourth connection receiving member is not released. For example, when the crane is not in the retracted position, the second connection member is erroneously connected to the third connection. It can prevent reliably connecting to a receiving member.

  At this time, a first position detector that detects whether or not the partition member is in the normal position, and a plurality of second position detectors that detect whether or not the partition member is in a position corresponding to the retracted position of each crane, Is preferably further provided.

  Thus, by providing the first position detection unit and the plurality of second position detection units, each control unit can detect the position of the partition member. Thereby, when the partition member is arrange | positioned in the wrong position, it can avoid that a crane collides with a partition member by controlling not to move a crane, for example.

  Preferably, the vehicle further includes a lock unit that locks the partition member on the travel route, and the lock unit unlocks the partition member when each crane is in the retracted position.

  When returning one crane from the retracted state to the normal operation, it is necessary to return the partition member to the normal position. At this time, for example, when the partition member is disposed at the normal position in a state where the other crane is close to the one crane, each crane may be positioned on the same side with respect to the partition member. Therefore, by providing a lock means for locking the partition member on the travel route and releasing the lock of the partition member by the lock means when each crane is in the retracted position, each crane is retracted. If not, the partition member cannot be returned to the normal position. Thereby, the misplacement that each crane is located in the same side with respect to a partition member can be avoided.

  According to the present invention, the collision between the crane and the partition member can be avoided. As a result, it is possible to appropriately carry out loading / unloading work using a plurality of cranes.

1 is a schematic system configuration diagram showing an embodiment of an automatic warehouse system according to the present invention. It is a circuit block diagram of the traveling control system in the crane shown in FIG. It is a circuit block diagram of the crane control system in the ground control panel shown in FIG. FIG. 2 is a schematic system configuration diagram illustrating a state in which any one of two cranes illustrated in FIG. 1 is retracted. It is a schematic system block diagram which shows an example of the conventional automatic warehouse system as a comparative example. It is a schematic system block diagram which shows other embodiment of the automatic warehouse system concerning this invention. FIG. 7 is a side view (including a partial cross section) illustrating an operation of the lock mechanism illustrated in FIG. 6. FIG. 7 is a circuit configuration diagram of a lock control system in the ground control panel shown in FIG. 6. FIG. 7 is a schematic system configuration diagram showing a state where both of the two cranes shown in FIG. 6 are retracted. It is a schematic system block diagram which shows the state by which the crane shown in FIG. 1 was misplaced. It is a figure which shows the modification of the locking mechanism shown in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of an automatic warehouse system according to the present invention will be described in detail with reference to the drawings. In the drawings, the same or equivalent elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a schematic system configuration diagram showing an embodiment of an automatic warehouse system according to the present invention. In the figure, an automatic warehouse system 1 according to the present embodiment includes cranes 2A and 2B for loading and unloading luggage with respect to a storage shelf (not shown), and a ground control panel for individually controlling these cranes 2A and 2B. 3A, 3B. The cranes 2A and 2B move on the same traveling rail 4 installed on the floor. The ground control panel 3 </ b> A is installed on one end side of the traveling rail 4, and the ground control panel 3 </ b> B is installed on the other end side of the traveling rail 4.

  The cranes 2 </ b> A and 2 </ b> B include a traveling platform 5 having wheels 5 a that can travel along the traveling rail 4, masts 6 and 7 erected on both front and rear sides of the traveling platform 5, and upper ends of the masts 6 and 7. And a carriage 9 which is supported by the masts 6 and 7 so as to be movable up and down and on which a load is placed.

  A chain 10A is connected to the crane 2A, and a plug 11A is attached to the tip of the chain 10A. The mast 6 on the ground control panel 3A side of the crane 2A is attached with a socket 12A that fits with the plug 11A and a socket 14A that fits with a plug 13 (described later) different from the plug 11A. The socket 12A is connected to the plug 11A during normal operation (operation) of the crane 2A. The socket 14A is connected to the plug 13 when the crane 2B is retracted.

  A chain 10B is connected to the crane 2B, and a plug 11B is attached to the tip of the chain 10B. A mast 7 on the ground control panel 3B side of the crane 2B is attached with a socket 12B that fits with a plug 11B and a socket 14B that fits with a plug 13 (described later). The socket 12B is connected to the plug 11B during normal operation of the crane 2B. The socket 14B is connected to the plug 13 when the crane 2A is retracted (see FIG. 4). As plugs 11A, 11B, and 13, it is desirable to use so-called unique plugs that cannot be inserted into sockets other than compatible sockets due to differences in type (shape, etc.).

  As shown in FIG. 2A, the socket 12A is connected to a traveling main circuit 15A for traveling the crane 2A. When the plug 11A is connected to the socket 12A, the traveling main circuit 15A is turned on. The socket 14A is not connected to the socket 12A, but is connected to a CPU (not shown).

  As shown in FIG. 2B, the socket 12B is connected to a traveling main circuit 15B for traveling the crane 2B. When the plug 11B is connected to the socket 12B, the traveling main circuit 15B is turned on. The socket 14B is not connected to the socket 12B and is connected to a CPU (not shown).

  A socket 16A for fitting with the plug 11A is attached to the ground control panel 3A. The socket 16A is connected to the plug 11A when the crane 2A is retracted (see FIG. 4). A socket 16B that fits with the plug 11B is attached to the ground control panel 3B. The socket 16B is connected to the plug 11B when the crane 2B is retracted.

  Further, the automatic warehouse system 1 is provided on the traveling rail 4 so as to be movable, and is installed in the vicinity of the traveling rail 4 and a mechanical stopper 17 that divides the working range (traveling range) of the cranes 2A and 2B on the traveling rail 4. , Limit switches 18, 19A, 19B for detecting the position of the mechanical stopper 17 are provided. The mechanical stopper 17 is provided with an engaging portion 17a that engages with the limit switches 18, 19A, 19B.

  The limit switch 18 closes the contact when the mechanical stopper 17 is in the normal position (the intermediate position of the traveling rail 4). The limit switch 19A closes the contact when the mechanical stopper 17 is at a position corresponding to the retracted position (see FIG. 4) of the crane 2A. The limit switch 19B closes the contact when the mechanical stopper 17 is at a position corresponding to the retracted position of the crane 2B.

  Detection signals from the limit switches 18, 19A, 19B are sent to the ground control panels 3A, 3B. The ground control panels 3A and 3B set the work ranges of the cranes 2A and 2B based on the detection signals from the limit switches 18, 19A and 19B.

  The automatic warehouse system 1 includes a plug 13 for detecting the retracted state of the cranes 2 </ b> A and 2 </ b> B and a socket 20 that fits the plug 13. The plug 13 is connected to the socket 20 when the mechanical stopper 17 is in the normal position. In this state, since the plug 13 is blocked by the engaging portion 17a of the mechanical stopper 17, the connection between the plug 13 and the socket 20 cannot be removed. When the mechanical stopper 17 is moved from the normal position, the plug 13 and the socket 20 can be disconnected.

  As shown in FIG. 3, the limit switch 18, the socket 20 and the crane main circuits 21A and 21B are connected in series, the limit switch 19A, the socket 16A and the crane main circuits 21A and 21B are connected in series, the limit switch 19B and the socket. 16B and the crane main circuits 21A and 21B are connected in series. The crane main circuit 21A is mounted on the ground control panel 3A and is a main circuit for controlling the crane 2A. The crane main circuit 21B is mounted on the ground control panel 3B and is a main circuit for controlling the crane 2B.

  When the contact of the limit switch 18 is closed and the plug 13 is connected to the socket 20, the contact of the limit switch 19A is closed and when the plug 11A is connected to the socket 16A, the contact of the limit switch 19B is closed and the socket is connected. When the plug 11B is connected to 16B, the crane main circuits 21A and 21B are powered on. Except for these conditions, the crane main circuits 21A and 21B are not turned on.

  In the automatic warehouse system 1 configured as described above, during normal operation as shown in FIG. 1, since the plug 11A is connected to the socket 12A of the crane 2A, the traveling main circuit 15A is turned on, and the crane 2B Since the plug 11B is connected to the socket 12B, the traveling main circuit 15B is turned on (see FIG. 2). Further, since the mechanical stopper 17 is in the normal position, the contact of the limit switch 18 is closed and the plug 13 is connected to the socket 20 on the ground side, so that the power is supplied to the crane main circuits 21A and 21B ( (See FIG. 3). Accordingly, the crane 2A travels within the work range on one side of the mechanical stopper 17, and the crane 2B travels within the work range on the other side of the mechanical stopper 17.

  When the crane 2A is retracted due to a failure of the crane 2A or the like, as shown in FIG. 4, the crane 2A is moved to one end of the traveling rail 4, the plug 11A is removed from the socket 12A of the crane 2A, and the plug 11A is removed from the ground. Connect to socket 16A of control panel 3A. Then, the traveling main circuit 15A of the crane 2A is not turned on (see FIG. 2). Then, the mechanical stopper 17 is moved to a position corresponding to the retracted position of the crane 2A, the plug 13 is removed from the ground-side socket 20, and the plug 13 is connected to the socket 14B of the crane 2B. Then, since the contact of the limit switch 19A is closed, the power is turned on to the crane main circuit 21B (see FIG. 3). In such a state, the crane 2B comes into the working range of the crane 2A during normal operation.

  Similarly, when retracting the crane 2B, the crane 2B is moved to the other end of the traveling rail 4, the plug 11B is removed from the socket 12B of the crane 2B, and the plug 11B is connected to the socket 16B of the ground control panel 3B. . Then, the traveling main circuit 15B of the crane 2B is not turned on (see FIG. 2). Then, the mechanical stopper 17 is moved to a position corresponding to the retracted position of the crane 2B, and the plug 13 is connected to the socket 14A of the crane 2A. Then, since the contact of the limit switch 19B is closed, the crane main circuit 21A is turned on (see FIG. 3). In such a state, the crane 2A comes into the working range of the crane 2B during normal operation.

  An example of a conventional automatic warehouse system is shown in FIG. 5 as a comparative example. In the figure, a plug 51A is attached to the ground control panel 3A, and a plug 51B is attached to the ground control panel 3B. Further, a socket 52A that fits the plug 51A is attached to the crane 2A, and a socket 52B that fits the plug 51B is attached to the crane 2B.

  During normal operation, as shown in FIG. 5A, the plug 51A and the socket 52A are not connected, and the plug 51B and the socket 52B are not connected. When the crane is retracted, as shown in FIG. 5B, the plug 51A and the socket 52A are connected, and the mechanical stopper 17 is moved to a position corresponding to the retracted position of the crane 2A.

  By the way, in the automatic warehouse system 50 shown in FIG. 5, the ground control panels 3A and 3B have the cranes 2A and 2B retracted from the connection state between the plug 51A and the socket 52A and the connection state between the plug 51B and the socket 52B. Whether or not can be detected. However, the cranes 2A and 2B themselves cannot detect whether or not the counterpart cranes 2B and 2A are retracted.

  At the time of manual operation, the cranes 2A and 2B and the ground control panels 3A and 3B are disconnected, and the cranes 2A and 2B are moved by a manual remote controller. For this reason, the cranes 2A and 2B cannot receive information on whether or not the counterpart cranes 2B and 2A are retracted from the ground control panels 3A and 3B. Therefore, for example, the mechanical stopper 17 in the normal position may be mistaken for the position corresponding to the retracted position of the cranes 2A and 2B, and the cranes 2A and 2B may collide with the mechanical stopper 17.

  Further, the cranes 2A and 2B and the ground control panels 3A and 3B cannot detect the position of the mechanical stopper 17. For this reason, even when the mechanical stopper 17 is installed at a wrong position, the cranes 2 </ b> A and 2 </ b> B may collide with the mechanical stopper 17.

  Further, when manual operation is performed for maintenance of the cranes 2A and 2B at the retracted positions of the cranes 2A and 2B, the cranes 2A and 2B being maintained may collide with the mechanical stopper 17 due to an erroneous operation by the operator.

  In contrast, in the present embodiment, a plug 13 that is used only when the cranes 2A and 2B are retracted is prepared. When the crane 2A is retracted, the plug 13 is connected to the socket 14B of the crane 2B and the crane 2B is retracted. Since the plug 13 is connected to the socket 14A of the crane 2A, the cranes 2A and 2B detect whether or not the counterpart cranes 2B and 2A are retracted from the presence or absence of the connection of the plug 13, and the mechanical stopper 17 positions (travelable range) can be recognized. Thereby, it is possible to prevent the cranes 2A and 2B from colliding with the mechanical stopper 17 when the cranes 2A and 2B that are not retracted are moved manually.

  Further, since the limit switches 18, 19A, 19B for detecting the position of the mechanical stopper 17 are provided, the ground control panels 3A, 3B can detect the position of the mechanical stopper 17. Moreover, the cranes 2A and 2B can recognize the travelable range from the connected state of the plug 13 as described above. Further, when the mechanical stopper 17 is installed at an incorrect position, the crane main circuits 21A and 21B are not turned on, and the cranes 2A and 2B cannot be moved. For this reason, it is possible to prevent the cranes 2 </ b> A and 2 </ b> B from colliding with the mechanical stopper 17.

  Furthermore, if the plugs 13, 11A, 11B are not connected to the correct sockets 20, 16A, 16B according to the position of the mechanical stopper 17, the crane main circuits 21A, 21B cannot be powered on, and the cranes 2A, 2B cannot be moved. . Thereby, even when the connection destination of the plugs 13, 11 </ b> A, 11 </ b> B is wrong, the cranes 2 </ b> A, 2 </ b> B can be prevented from colliding with the mechanical stopper 17.

  Further, when the crane 2A is retracted, if the plug 11A of the crane 2A is connected to the socket 16A of the ground control panel 3A, the traveling main circuit 15A of the crane 2A is not turned on, and the crane 2B is retracted when the crane 2B is retracted. When the plug 11B is connected to the socket 16B of the ground control panel 3B, the power is not turned on to the traveling main circuit 15B of the crane 2B. For this reason, the cranes 2A and 2B in the retracted state cannot travel even in the energized state. Thereby, it is possible to prevent the cranes 2 </ b> A and 2 </ b> B under maintenance from colliding with the mechanical stopper 17 due to an erroneous operation by the operator.

  Thus, since the collision between the cranes 2A and 2B and the mechanical stopper 17 can be avoided, the cranes 2A and 2B can be prevented from being damaged or broken.

  FIG. 6 is a schematic system configuration diagram showing another embodiment of the automatic warehouse system according to the present invention. In the figure, the automatic warehouse system 1 of this embodiment includes a lock mechanism 30 that locks the mechanical stopper 17 on the traveling rail 4. The lock mechanism 30 is disposed at three installation sites of the mechanical stopper 17 (normal position, a position corresponding to the retracted position of the cranes 2A and 2B). Other configurations are the same as those of the above-described embodiment.

  As shown in FIG. 7, the lock mechanism 30 is disposed so as to face the solenoid portion 31 so as to sandwich the mechanical stopper 17 and the solenoid portion 31 having a plunger 31 a that can be inserted into and removed from the hole portion 17 b formed in the mechanical stopper 17. And a guide portion 32.

  As shown in FIG. 7A, when the plunger 31a is inserted into the hole 17b of the mechanical stopper 17, the mechanical stopper 17 is locked to the traveling rail 4, and the mechanical stopper 17 cannot be moved. When the plunger 31a is extracted from the hole 17b of the mechanical stopper 17 as shown in FIG. 7B, the mechanical stopper 17 is released from the locked state, and the mechanical stopper 17 can be moved upward.

  As shown in FIG. 8, the sockets 16A and 16B and the lock control circuit 33 are connected in series. The lock control circuit 33 is mounted on the ground control panels 3 </ b> A and 3 </ b> B and controls the solenoid unit 31 of the lock mechanism 30. When the plug 11A is not connected to the socket 16A and the plug 11B is not connected to the socket 16B, the lock control circuit 33 is not turned on, and the plunger 31a is inserted into the hole 17b of the mechanical stopper 17 in a normal state. Yes. When the plug 11A is connected to the socket 16A and the plug 11B is connected to the socket 16B, the lock control circuit 33 is turned on so that the plunger 31a is pulled out from the hole 17b of the mechanical stopper 17 by the lock control circuit 33. Be controlled.

  That is, as shown in FIG. 9, when the cranes 2A and 2B are both moved to the retracted position, the plug 11A is connected to the socket 16A, and the plug 11B is connected to the socket 16B, the mechanical stopper 17 is unlocked. Will be.

  Here, in the case where the lock mechanism 30 is not provided, the following problems may occur. That is, for example, as shown in FIG. 4, in a state where the crane 2A is retracted and the operation is performed only by the crane 2B, the mechanical stopper 17 is returned to the original normal position after the maintenance of the crane 2A is completed. Sometimes, as shown in FIG. 10, two cranes 2A and 2B may be disposed within the working range of the crane 2A. In this case, it is considered that a collision between the cranes 2A and 2B occurs. In addition, it takes time and effort to return such an incorrect arrangement of the crane 2B to the correct arrangement.

  On the other hand, in the present embodiment, a lock mechanism 30 for locking the mechanical stopper 17 on the traveling rail 4 is provided, and the mechanical stopper 17 is locked only when the plug 11A is connected to the socket 16A and the plug 11B is connected to the socket 16B. Since the mechanical stopper 17 can be moved, the cranes 2 </ b> A and 2 </ b> B can be reliably placed within their own work range defined by the mechanical stopper 17. Thereby, since the misplacement of the cranes 2A and 2B can be avoided, it is possible to reliably prevent the collision between the cranes 2A and 2B.

  In this embodiment, the electrical lock mechanism 30 controlled by the ground control panels 3A and 3B is provided. However, the lock mechanism may be a mechanical structure. An example of a locking mechanism that mechanically locks the mechanical stopper 17 on the traveling rail 4 is shown in FIG.

  In FIG. 11, the lock mechanism 40 has guide portions 41 </ b> A and 41 </ b> B that are opposed to each other in the front-rear direction so as to sandwich the mechanical stopper 17. The guide portions 41 </ b> A and 41 </ b> B have holes 17 b formed in the mechanical stopper 17. On the other hand, movable pins 42A and 42B that can be taken in and out are provided. Spring 44A, 44B attached to wall part 43A, 43B arrange | positioned at the both ends of the traveling rail 4 is connected to movable pin 42A, 42B via wire 45A, 45B.

  In such a lock mechanism 40, when the springs 44A and 44B are in the initial state, the movable pins 42A and 42B are inserted into the holes 17b of the mechanical stopper 17. When the cranes 2A and 2B are moved to the retracted position, the springs 44A and 44B are contracted by the force of the cranes 2A and 2B, and accordingly, the movable pins 42A and 42B are extracted from the hole 17b of the mechanical stopper 17. As a result, the mechanical stopper 17 is unlocked.

  The present invention is not limited to the above embodiment. For example, in the above embodiment, the traveling main circuits 15A, 15B and the crane main circuits 21A, 21B are shut off if the mechanical stopper 17 is not installed and the plugs 11A, 11B, 13 are connected correctly. For example, by sending the connection state of the plugs 11A, 11B, 13 as signals to the ground control panels 3A, 3B and the CPUs (not shown) of the cranes 2A, 2B, the main driving circuits 15A, 15B and The crane main circuits 21A and 21B are powered on, but may be abnormally controlled.

  Further, as the three connecting members connected to the socket, mutually unique key switches or the like may be used instead of the above plugs.

  Moreover, although the two cranes 2A and 2B travel on the traveling rail 4 in the automatic warehouse system 1 of the above embodiment, in the present invention, three or more cranes travel on the same traveling rail. It can also be applied to things.

DESCRIPTION OF SYMBOLS 1 ... Automatic warehouse system, 2A, 2B ... Crane, 3A, 3B ... Ground control panel (control unit), 4 ... Travel rail (travel path), 11A, 11B ... Plug (1st connection member), 12A, 12B ... Socket (First connection receiving member), 13 ... plug (second connection member), 14A, 14B ... socket (third connection receiving member), 16A, 16B ... socket (second connection receiving member), 17 ... mechanical stopper (partition member) ), 18... Limit switch (first position detector), 19A, 19B... Limit switch (second position detector), 20... Socket (fourth connection receiving member), 30. Lock mechanism (locking means).

Claims (4)

In an automatic warehouse system where multiple cranes travel on the same travel route,
A partition member that is movably provided on the travel route and divides a travel range of each crane;
A plurality of control units for individually controlling the cranes;
A first connecting member provided on each crane;
A first connection receiving member provided on each crane, connected to the first connection member during operation of the crane;
A second connection receiving member provided in each control unit and connected to the first connection member when the crane is retracted;
A second connecting member for detecting the retracted state of the crane;
An automatic warehouse system comprising a third connection receiving member provided on each crane and connected to the second connection member. A fourth connection receiving member installed on the travel route side and connected to the second connection member in a state where the partition member is in a normal position;
The automatic warehouse system according to claim 1, wherein when the partition member moves from the normal position, the connection between the second connection member and the fourth connection receiving member can be released. A first position detector that detects whether the partition member is in the normal position;
The automatic warehouse system according to claim 2, further comprising a plurality of second position detection units that respectively detect whether or not the partition member is at a position corresponding to a retracted position of each crane. A lock means for locking the partition member on the travel route;
The automatic warehouse system according to any one of claims 1 to 3, wherein the lock unit releases the lock of the partition member when each of the cranes is in a retracted position.

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