JP2010162614A - Door device of automated instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent an open/close key from being forgotten to pull out in an inspection door. <P>SOLUTION: The inspection door 24 serves to make hard an access to a stacker crane, and includes a fixed part 30, a door 32, the open/close key 46, a lock 34 and a key insert 36. The door 32 can be opened/closed on the fixed part 30. The open/close key 46 has a key part 46a and a head 46b larger than the key part 46a. The lock 34 is provided to allow the open/close key 46 to be inserted in an opening direction of the door 32 on the fixed part 30, and can lock and unlock the door 32 by the open/close key 46. The key insert 36 is provided oppositely to the lock 34 on the door 32 and allows the key part 46a to be inserted into the lock 34 and to come into contact with the head 46b. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a door device, and more particularly to a door device for an automatic driving device provided on a safety fence arranged around the automatic driving device.

  For example, in automatic traveling, as a safety measure, a safety fence is provided so as to surround the traveling route so that a person cannot enter or leave the traveling route of a stacker crane (an example of an automatic driving device) without permission. Similar safety fences are also provided at locations where automatic machine tools (an example of automatic operation equipment) are installed in factories.

  These safety fences are provided with door devices that allow workers who perform repairs and maintenance inspections to enter the safety fences and access the automatic operation equipment (see, for example, Patent Document 1).

  Conventionally, when a stacker crane is manually operated at the time of repair or maintenance inspection, there are a case where it is remotely operated outside the safety fence and a case where the door is opened and operated inside the safety fence. When operating inside the safety fence, connect a remote controller to the stacker crane body and operate it near the stacker crane. In this case, the operation mode is switched from the remote mode to the machine mode by the operation key outside the safety fence. Next, hold the key and the remote controller, open the door with the door opening / closing key, and enter the inside of the safety fence. Finally, the operation key is inserted into the machine to enable operation by the remote controller, and the stacker crane is operated by the remote controller. The door opening / closing key and the stacker crane operation key are connected by a connecting member such as a wire or a chain, so that the two keys are always carried together.

Japanese Utility Model Publication No. 04-134529

  Although such a safety fence is provided, in a conventional door device, after opening the door with an opening / closing key, the user may forget to remove the opening / closing key from the door. When an operator enters the safety fence with the key attached to the door, the operation key is connected with the opening / closing key, so the operator cannot enter the safety fence without holding the operation key. become. For this reason, when performing an internal operation, it is necessary to search for a key, resulting in a delay in work time. In addition, it is possible to change the operation mode in which another person uses the operation key to automatically change the operation mode from the aircraft side.

  An object of the present invention is to prevent a door device from forgetting to remove a key for opening and closing.

The door device according to the present invention is a door device for making it difficult to access the autonomous driving device, and includes a fixing portion, a door portion, a key, a lock portion, and a key insertion portion. The door portion can be opened and closed with respect to the fixed portion. The key has a key part and a head larger than the key part. The lock part is provided so that the key part can be inserted into the fixed part along the opening direction of the door part, and the door part can be locked and unlocked by the key. A key insertion part is provided in the position which opposes the lock part of a door part, and can insert a key part in a lock part and can contact a head.
When the door device approaches the automatic operation device, the key portion is inserted into the lock portion through the key insertion portion to open the closed door portion, and the key is operated in the unlocking direction. When the lock part is unlocked, the operator opens the door part by hand. At this time, if the user forgets to remove the key from the lock, the head of the key comes into contact with the key insertion part, and the key falls out of the lock.
Here, the lock part is provided in the fixed part instead of the door part normally mounted, and the key insertion part is provided in the door part. For this reason, if you forget to remove the key when opening the door, the key will fall out of the lock. At this time, it is possible to recognize that the key has been dropped by the sound and to forget to remove the opening / closing key.

The key insertion part may have an insertion hole through which the key part can pass and the head part cannot pass in a state where the key part is inserted into the lock part.
In this case, if the user forgets to remove the key and opens the door, the head of the key is caught in the insertion hole, and the key can be reliably dropped.

The door portion is a plate-like member that is supported by the fixing portion so as to be freely opened and closed, and the key insertion portion is a plate-like member that protrudes on the opposite side to the book number and has an insertion hole facing the lock portion.
In this case, the key insertion portion can be formed with a plate member at low cost. Further, the door portion and the fixed portion can be formed in a general shape in which the position of the lock portion is reversed.

  According to the present invention, the lock part is provided in the fixed part instead of the door part normally mounted, and the key insertion part is provided in the door part. For this reason, if you forget to remove the key when opening the door, the key will fall out of the lock. At this time, it is possible to recognize that the key has been dropped by the sound and to forget to remove the opening / closing key.

The top view of the automatic warehouse by which one Embodiment of this invention was employ | adopted. The front view of the inspection door provided in the safety fence. The partial expanded front view of the lock mounting part of an inspection door. IV-IV sectional drawing of FIG. VV sectional drawing of FIG. VI-VI sectional drawing of FIG. The top view of an open / close key. The figure equivalent to FIG. 4 at the time of opening operation of a door part.

(1) Automatic Warehouse FIG. 1 shows an example of an automatic warehouse in which an embodiment of the present invention is adopted. In the automatic warehouse, a transport carriage 10 for transporting articles, a placement base 12 for placing articles when carrying out or carrying in articles, a plurality of shelves 14 for storing articles, a transport carriage 10 and a placement stage 12, A stacker crane (an example of an automatic driving device) 16 for loading and unloading articles between a plurality of shelves is provided. The article is handled, for example, in a state of being placed on a pallet. The transport carriage 10 can travel on a rail 11 as a movement route. The rail 11 is disposed from the load receiving position (the end of the movement path) for receiving the article to the transfer position with the stacker crane 16. The stacker crane 16 can move between the plurality of shelves 14 from the transfer position.

  A first safety fence 20, a second safety fence 22, and an inspection door (a door according to an embodiment of the present invention) are provided around the rail 11 of the transport carriage 10, the movement path of the stacker crane 16, and the mounting table 12. An example of the device) 24 is provided. The first safety fence 20 is provided so as to surround the cargo handling area of the transport carriage 10 from three directions. Therefore, the height of the first safety fence 20 is lower than the loading height in order to avoid interference with a loading machine such as a forklift. The second safety fence 22 is higher than the first safety fence 20 and is provided outside the cargo handling area.

(2) Inspection Door As shown in FIG. 2, the inspection door 24 includes a fixed portion 30, a door portion 32 that can be opened and closed with respect to the fixed portion 30, an open / close key 46 (see FIG. 7), and an open / close key 46. The lock part 34 provided in the fixing | fixed part 30 which can take a locked state and a lock release state, and the key insertion part 36 provided in the door part 32 are provided.

(3) Key In this embodiment, as shown in FIG. 6, an opening / closing key 46 for opening / closing the door portion 32 and an operation key 47 for crane operation for switching the operation mode of the stacker crane 16 between the remote mode and the machine mode. And are used. The open / close key 46 and the operation key 47 are connected by a connecting member 49 such as a wire. As shown in FIG. 7, the open / close key 46 has a key portion 46a inserted into the lock portion 34 and a head portion 46b larger than the key portion 46a. The head portion 46b is disposed at a position eccentric with respect to the key portion 46a, and the length from the center of the key portion 46a is long. The operation key 47 is used not only for switching the operation mode but also for power supply on the aircraft side.

(4) Fixing part The fixing part 30 is formed in a rectangular frame shape by welding a square steel pipe, for example. The fixed portion 30 includes, for example, three column portions 30a, 30b, and 30c arranged at intervals on the left and right sides, and two beam portions 30d that connect the three column portions 30a, 30b, and 30c vertically. 30e and two floor fixing brackets 30f and 30g extending rearward from the lower portions of the two pillar portions 30a and 30c on both sides.

  In this embodiment, a door portion 32 in the form of a single door is opened and closed to a fixed portion 30 by a plurality of hinges 40 (for example, three) within a frame surrounded by the column portion 30a on the left side of FIG. It is installed freely. The hinge 40 is disposed between the column part 30a and the door part 32 on the left side in FIG.

  A carriage control panel 42 of the transport carriage 10 is mounted between the central pillar 30b and the right pillar 30c. For example, a lock 34 is provided at a position of the central column 30b, for example, at a height of approximately 1 m.

  Above the lock portion 34 of the central column 30b, a crane operation unit 44 that can remotely change the operation mode of the stacker crane 16 is provided. For the stacker crane 16, an opening / closing key 46 (see FIG. 6) for changing the operation mode is inserted into the crane operation unit 44 to determine whether the stacker crane is operated outside the inspection door 24 or on the machine body side. Mode operation switch 44a is provided. Further, an automatic stop button 44b for automatically stopping the stacker crane 16 is provided. When operating the stacker crane 16 on the machine body side during inspection work or repair work, the operator operates the automatic stop button 44b to stop the stacker crane 16, and then inserts the open / close key 46 into the mode operation switch 44a. The operation switch 44a is turned to the body side.

  A cart operation unit 48 of the transport cart 10 is provided on the right column 30c. Further, a grid-like protective net 50 is disposed above the cart control panel 42. The protective net 50 is fixed to two beam portions 30h and 30i that are vertically spaced from each other between the central column portion 30b and the right column portion 30c. A remote controller 52 for operating the stacker crane 16 on the machine body side is detachably hooked on the protective net 50. The remote controller 52 is normally connected to the crane operation unit 44 via a cable 44c.

(5) Door portion The door portion 32 is formed in a ladder shape by welding a square steel pipe smaller than the fixed portion 30. The door portion 32 includes a ladder-like door main body 54 and a net portion 56 fixed to the door main body 54. The door main body 54 connects the two frame portions 54a and 54b and the two frame portions 54a and 54b, which are spaced apart from each other along the vertical direction, for example, three connection portions 54c and 54d, 54e. Three hinges are fixed to the frame portion 54a. The key insertion portion 36 is fixed to the front surface of the frame portion 54b by welding, for example. A C-shaped handle 58 is fixed above the key insertion portion 36 of the frame portion 54b. The net portion 56 has the same design as the protective net 50, is disposed between the two frame portions 54a and 54b, and is fixed to the connecting portions 54c, 54d, and 54e. On the upper part of the door part 32, a door closing detection part 32a for detecting that the door part 32 is closed is provided.

(6) Lock part The lock part 34 is provided in the fixing part 30 so that an opening / closing key 46 can be inserted along the opening direction of the door 32 (substantially up and down in FIG. 4). It can be unlocked. As shown in FIGS. 3 to 6, the lock portion 34 includes a lock main body 60 having a key hole 60 a through which the opening / closing key 46 is inserted, and a stopper 62 fixed to the lock main body 60. The lock main body 60 is, for example, a cylinder lock, and is fixed to a key mounting hole 30j formed on the front surface of the right column portion 30c of the fixing portion 30 by a nut 60b. The nut 60b is mounted from a nut mounting hole 30m formed in a rectangular shape on the back surface of the column portion 30c and is rotated by a tool. The lock body 60 has a key shaft 60 c provided to rotate together with the opening / closing key 46.

  As shown in FIGS. 4 and 5, the stopper plate 62 is connected to the key shaft 60 c so as to be integrally rotatable. The stopper 62 rotates at an angle of approximately 90 degrees between a lock position indicated by a solid line and a lock release position indicated by a two-dot chain line in FIG. The clasp 62 is a metal plate-like member having engagement holes 62a and 62b that are non-rotatably engaged with the key shaft 60c at both ends. The two engagement holes 62a and 62b are arranged 90 degrees out of phase. Thereby, the unlocking position can be changed. Further, with respect to the line segment L connecting the two engagement holes 62a, one side has a longer distance from the line segment L than the other side 62d. One side 62c functions as a detector when detecting whether or not the clasp 62 is in the locked position.

  When the clasp 62 is in the locked position, the distal end portion is disposed in the lock groove 54f formed in the frame portion 54b through the coupling groove 30k formed in the column portion 30c. As a result, the door portion 32 is locked to the fixed portion 30. Further, when the door is rotated to the unlocking position indicated by the two-dot chain line by the open / close key 46, the door 32 is released from the lock groove 54f and unlocked.

  A lock position detector 64 that detects whether or not the clasp 62 is in the lock position is disposed above the lock part 34 inside the pillar 30b. The lock position detector 64 uses, for example, a proximity sensor. The lock position detection unit 64 is fixed to a sensor bracket 66 fixed to the inner surface of the column part 30b together with the lock main body 60 by a nut 60b. When the stopper 62 is in the locked position, the lock position detection unit 64 is turned on when the one side 62 c side is disposed at a position facing the tip of the lock position detection unit 64.

(7) Key Insertion Unit As shown in FIGS. 3, 4, and 6, the key insertion portion 36 is provided at a position facing the lock portion 34 of the door portion 32, and the opening / closing key 46 can be inserted into the lock portion 34. In addition, the open / close key 46 can be contacted. The key insertion portion 36 is a plate-like member that protrudes so that the base end is fixed to the frame portion 54b by welding and the front end covers the front surface of the column portion 30b. The key insertion part 36 has an insertion hole 36a through which the key part 46a of the open / close key 46 can pass and through which the head part 46b cannot pass when the key part 46a is inserted into the lock part 34. Specifically, the longer end portion of the head portion 46b that is eccentric in a state where the open / close key 46 is mounted on the lock portion 34 is formed so as to contact the insertion hole 36a. In this embodiment, the distal end of the lock portion 34 is arranged to slightly protrude from the insertion hole 36a.

(8) Opening / Closing Operation of Inspection Door When performing maintenance / inspection or repair of the stacker crane 16, when operating on the machine body side, the automatic stop button 44b of the crane operation unit 44 is pushed. Then, the stacker crane 16 and the transport carriage 10 are stopped. The operator waits for those stops and inserts the operation key 47 into the mode operation switch 44a to switch to the machine body side. Thereafter, the operation key 47 is removed, the cable 52a of the remote controller 52 is disconnected from the crane operation unit 44, and the remote controller 52, the operation key 47, and the open / close key 46 are held.

  Then, the nameplate (not shown), which is suspended from the door 32 and has the entry prohibition on the front surface and the operation prohibition on the back surface, is turned over and the worker is placed in the first safety fence 20 or the second safety fence 22 by another worker. Announce that you are.

  When this is finished, the opening / closing key 46 connected to the operation key 47 is inserted into the key hole 60a of the lock 34, and the opening / closing key 46 is turned 90 degrees to bring the door 32 into the unlocked state. Then, the door 32 is opened with the handle 58.

  If the user forgets to remove the open / close key 46 from the lock 34 at this time, the head 46b of the open / close key 46 inserted into the lock 34 as shown by a two-dot chain line in FIG. Comes in contact with the insertion hole 36a of the key insertion portion 36, and the open / close key 46 falls out. For this reason, forgetting to remove the open / close key 46 can be prevented.

(9) Features The inspection door 24 is a door for making it difficult to access the stacker crane. The inspection door 24 includes a fixed portion 30, a door portion 32, an opening / closing key 46, a lock portion 34, and a key insertion portion 36. I have. The door portion 32 can be opened and closed with respect to the fixed portion 30. The open / close key 46 has a key part 46a and a head part 46b larger than the key part 46a. The lock portion 34 is provided so that the key portion 46 a can be inserted into the fixed portion 30 along the opening direction of the door portion 32, and the door portion 32 can be locked and unlocked by the opening / closing key 46. The key insertion part 36 is provided at a position facing the lock part 34 of the door part 32, and the key part 46a can be inserted into the lock part 34 and can come into contact with the head part 46b.
When the inspection door 24 approaches the stacker crane 16, the key portion 46a is inserted into the lock portion 34 through the key insertion portion 36 in order to open the closed door portion 32, and the opening / closing key 46 is moved in the unlocking direction. Manipulate. When the lock 34 is unlocked, the operator opens the door 32 by hand. At this time, if the user forgets to remove the opening / closing key 46 from the lock portion 34, the head 46 b of the opening / closing key 46 comes into contact with the key insertion portion 36, and the opening / closing key 46 falls out of the lock portion 34.
Here, the lock portion 34 is provided in the fixed portion 30 instead of the door portion 32 that is normally mounted, and the key insertion portion 36 is provided in the door portion 32. For this reason, if the user forgets to remove the opening / closing key 46 when opening the door 32, the opening / closing key 46 falls out of the lock 34. At this time, it is possible to recognize that the open / close key 46 has been dropped due to the sound, and to prevent the open / close key 46 from being forgotten.

  The key insertion part 36 has an insertion hole 36a through which the key part 46a can pass and the head part 46b cannot pass through when the key part 46a is inserted into the lock part 34. For this reason, when the door 32 is opened by forgetting to remove the open / close key 46, the head 46b of the open / close key 46 is caught in the insertion hole, and the open / close key 46 can be reliably dropped.

  The door portion 32 is supported by the fixed portion 30 so as to be openable and closable by a hinge 40, and the key insertion portion 36 is a plate-like member that protrudes on the opposite side of the hinge 40 and has an insertion hole 36a facing the lock portion 34. is there. For this reason, the key insertion part 36 can be formed with a plate-shaped member at low cost. Further, the door portion and the fixed portion can be formed in a general shape in which the position of the lock portion is reversed.

(10) Other Embodiments Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention.

  In the said embodiment, although this invention was demonstrated to the example of the single swing door rock | fluctuated with respect to a fixing | fixed part, the door apparatus which concerns on this invention is not limited to a single swing door. For example, the present invention can be applied to a sliding door that moves linearly with respect to the fixed portion. In this case, what is necessary is just to arrange | position a lock part to a fixing | fixed part so that a key can be inserted along the moving direction of a door part.

  In the said embodiment, although this invention was demonstrated to the example of the stacker crane as an automatic driving | operation apparatus, this invention is not limited to this. For example, the present invention can be applied to all door devices used when entering the inside where entry is prohibited by a safety fence such as a transport carriage.

  The present invention can be widely applied to a door device that makes it difficult to access an automatic driving device.

DESCRIPTION OF SYMBOLS 10 Carriage trolley 11 Rail 12 Mounting stand 14 Shelf 16 Stacker crane 20 1st safety fence 22 2nd safety fence 24 Inspection door (door device)
30 fixing portions 30a, 30b, 30c pillar portions 30d, 30e beam portions 30f, 30g floor fixing brackets 30h, 30i beam portions 30j key mounting hole 30k coupling groove 30m nut mounting hole 32 door portion 32a door closing detection portion 34 lock front portion 36 key Insertion part 36a Insertion hole 40 Hinge 42 Dolly control panel 44 Crane operation part 44a Mode operation switch 44b Automatic stop button 44c Cable 46 Open / close key (key)
46a Key part 46b Head 47 Operation key 48 Carriage operation part 49 Connecting member 50 Protective net 52 Remote controller 52a Cable 54 Door body 54a, 54b Frame part 54c, 54d, 54e Connection part 54f Lock groove 56 Net part 58 Handle 60 Lock body 60a Key hole 60b Nut 60c Key shaft 62 Clasps 62a, 62b Engagement hole 62c One side 62d The other side 64 Lock position detector 66 Sensor bracket

Claims (3)

A door device for an automatic driving device for making it difficult to access the automatic driving device,
A fixed part;
A door that can be opened and closed with respect to the fixed part;
A key having a key part and a head larger than the key part;
The lock part is provided so that the key part of the key can be inserted in the fixing part along the opening direction of the door part, and a lock part capable of locking and unlocking the door part by the key;
A key insertion part provided at a position facing the lock part of the door part, the key part being insertable into the lock part and being able to contact the head part;
The door device of the automatic operation equipment equipped with.   2. The automatic operation device according to claim 1, wherein the key insertion portion has an insertion hole through which the key portion can pass and the head portion cannot pass in a state where the key portion is inserted into the lock portion. Door device. The door part is supported by the fixed part so as to be opened and closed by a hinge,
The door device for an automatic operation device according to claim 2, wherein the key insertion portion is a plate-like member that protrudes on the opposite side of the hinge and is disposed with the insertion hole facing the lock portion.

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