JP2976742B2 - Automatic warehouse loading / unloading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loading / unloading device for use in, for example, an automatic warehouse, which is capable of switching between a ladder and a cab used for maintenance and inspection work. Things.

[0002]

2. Description of the Related Art Heretofore, as this kind, there has been provided a traveling crane with a lifting cab as disclosed in, for example, JP-A-1-313202. In this conventional configuration, the traveling body of the traveling crane is configured by connecting and integrating a lower frame guided by a lower guide rail and an upper frame guided by an upper guide rail with a pair of front and rear columns,
Further, a load transfer means is provided on a lifting carriage which moves up and down between the two columns. Then, a guide rail is mounted on the outside of the traveling direction by the other support, and an elevating cab which is held by the guide rail so as to be able to move up and down is provided.

In this conventional construction, the traveling crane moves the traveling body by manual operation while riding on the cab on the lifting carriage side or remote operation from the ground side, and moves the lifting carriage up and down. In addition, the loading and unloading can be performed at a target location on the shelf by a combination operation of moving the load transfer means with a fork. And
For example, the elevator cab is used when performing an emergency repair work in which the elevator carriage is broken or a collapse of the load occurs, or a regular maintenance work.

[0004] That is, after the operator gets on the lift cab, the lift cab can be moved up and down along the guide rail by rotating the lift drive chain forward and backward by the motor, and the lift cab faces the lift carriage. After being stopped at the position, the worker moves from the hoisting cab to the hoisting carriage to perform intended repair work, maintenance work, and the like.

[0005]

According to the conventional construction described above, when the existing (delivered) traveling crane is desired to be a traveling crane of a type that does not require an elevating cab, the elevating cab and the guide rail are removed from the column side. And laying ladders on the columns for repairs and inspections are necessary, and these operations are complicated and cannot be performed in a short time. Conversely, if the existing traveling crane to which the ladder is attached is to be a traveling crane having a lifting cab, the work of removing the ladder from the column side and the work of arranging the lifting cab and guide rail on the column side. These operations are also complicated and cannot be performed in a short time.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic warehouse loading / unloading device which can easily and inexpensively switch between a ladder type and a cab type.

[0007]

According to the present invention, there is provided an automatic storage and retrieval apparatus for an automatic warehouse, comprising: a lower frame;
A column standing from the lower frame and the upper end of this column
A traveling body is constituted by an upper frame connected to the traveling body, and a carriage that can move up and down is provided on one surface of the column in the traveling direction of the traveling body, and a cab guide rail and a ladder are provided on the other surface of the column. Alternatively, a detachable connecting device is provided.

[0008]

According to the structure of the present invention described above, the loading / unloading device can move the traveling main body by remote operation or the like and move the carriage up and down to move the carriage into and out of the intended storage section of the shelf. Can load and unload goods. A ladder is used in an access device of a type having a ladder, for example, when performing repair work in an emergency where the carriage side of the access device has a failure or collapse of a load, or when performing regular maintenance and inspection work. That is, the worker
You can move to the college by climbing the ladder.

In order to switch the access device having the ladder as described above to an access device having a cab,
First, the connecting device is released and the ladder is removed. Then, after the cab guide rail is attached to the support using the connecting device, the cab may be arranged on the cab guide rail. In a type of loading / unloading device having such a cab, the cab is used for performing repair work, maintenance and inspection work, and the like.

That is, an operator can board the cab in a state where the cab is stopped at the lower limit by the guide of the cab guide rail. Then, the cab is raised along the cab guide rails while riding, and stopped at a predetermined position. Thereafter, the worker between the cab and the carriage may be transferred.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 to 4, the frame-shaped shelf 1 has a plurality of storage sections 2 formed in the vertical and horizontal directions, and each storage section 2 has a load 3 (directly or through a pallet) via a brace. It is configured to support. The shelves 1 are arranged side by side with a passage 4, and in the passage 4, an access device 10 that can travel on a fixed path 5 in front of the shelf 1 is provided.

The loading / unloading device 10 is of a type having a ladder, and includes a lower frame 11, a pair of square pipes (or round pipes) erected from the lower frame 11 side, and a pair of square pipes (or round pipes). The traveling body 14 is constituted by the upper frame 13 connecting the upper ends. A carriage 16 that is guided up and down via a guide roller 15 having both side surfaces of the columns 12 as guide surfaces is disposed between the columns 12. Further, on the carriage 16, an access tool (fork) 17 which can be moved in and out of the storage section 2 and the like is arranged. The upper frame 13 has a guide device 18 guided by the ceiling rail 7.

A drive wheel 20 that can roll on the floor rail 6 is mounted on one end of the lower frame 11, and a driven wheel 21 is mounted on the other end. The traveling drive unit 22 attached to one end of the lower frame 11,
It is composed of a speed reducer interlocked with the drive wheel 20, a traveling drive device (such as a motor with a flange type brake) interlocked with the speed reducer, and the like.

Further, at one end of the lower frame 11, an elevating drive unit 23 interlocking with the carriage 16 is mounted. The lifting drive unit 23 is configured by a lifting drive device, a speed reducer, and the like, and has driving wheels 24 linked to the speed reducer. One end of a cable (such as a chain) 25 hung on the drive wheel 24 is connected to a counterweight in one of the columns 12 via a guide wheel disposed on the upper frame 13. The other end is connected to an upper portion of the carriage 16 via a guide wheel. The lower frame
A power unit 26 and a control unit 27 are provided on the side surface of the eleventh unit so as to be divided back and forth.

A ladder 30 is provided on the outer surface (the other surface) of the other support 12. That is, channel-shaped mounting brackets 31 in plan view are fixed to a plurality of vertical positions on the outer surface of the support column 12 via stud bolts 45 and nuts 46, which are examples of a connecting device.

That is, a plurality of pairs of stud bolts 45 arranged at a predetermined pitch P in the left-right direction are provided at predetermined heights H in the vertical direction. In addition, each mounting bracket 31
The bolt insertion holes 32 are formed at a pitch corresponding to the predetermined pitch P of the stud bolts 45 in the connection plate portion of the stud bolt 45. Therefore, the nuts 46 are tightened after the bolt insertion holes 32 are used to externally fit the stud bolts 45. Thus, the plurality of mounting brackets 31 can be fixed to the outer surface of the column 12.

The ladder 30 comprises a pair of left and right side members 33 and a plurality of upper and lower ramp members 34 provided between the side members 33. Here, the both-side members 33 are made of an extruded product of aluminum, and a dovetail groove portion 35 for connection is formed on the left and right outer surfaces thereof, and a single dovetail groove portion 36 is formed on the inner surface side of the both-side members 33 in the left-right direction. ing. The ramp member 34 is formed of a pipe body, and a coupling member 37 integrated at both ends thereof is:
The ladder 30 is formed by being fitted into the dovetail groove portions 36 of the both side members 33, being caulked, and then integrated.

The ladder 30 constructed as described above is disposed with the outer surface of the side member 33 abutting on the inner surface of the leg of the mounting bracket 31.
By screwing a bolt 38 passed through the leg portion from the outside to a nut 39 located in the dovetail portion 35, the bolt 38 is fixed between the mounting brackets 31. At that time, the ladder 30 is
Are arranged along substantially the entire length of the.

5 to 9 show a type having a cab,
A cab 50 used at the time of maintenance and an emergency or in an emergency is provided on the other column 12 on the outside (the other surface side) in the traveling direction so as to be able to move up and down. That is, the ladder 30 is detached from the support 12 together with the mounting bracket 31 by unscrewing the nut 46. A cab guide rail 80 is attached using the remaining stud bolts 45, and the cab 50 is held by the cab guide rail 80 so as to be able to move up and down.

That is, the cab guide rail 80 is manufactured in the form of a mold rail by extruding aluminum, and has cab guide portions opened to the left and right outward on both left and right sides.
81 is formed in a concave groove shape, and a connecting dovetail groove portion 82 is formed in the cab guide portion 81 and is open to the left and right outward. A dovetail groove 83 for attachment is formed. Further, a sandwiched portion 84 is formed between the two cab guide portions 81 and integrally protrudes outward in the front-rear direction.

The cab guide rail 80 is provided with the support column.
It is fixed between connecting members 85 attached to a plurality of upper and lower locations on the outer surface of the twelve. That is, the connecting member 85 has a gate shape in a plan view, and a bolt insertion hole 86 is formed in the connection plate portion at a pitch corresponding to the predetermined pitch P of the stud bolt 45, and therefore, the bolt insertion hole 86 is used. To fit the stud bolt 45 and tighten the nut 46 to
A plurality of connecting members 85 can be fixed to the outer surface of the twelve.

The free ends of both legs of the connecting member 86 abut against the portion of the connecting dovetail portion 82 from outside, and bolts 87 passed from the outside to the free ends of the two legs are connected to these dovetail portions.
The cab guide rail 80 is fixed to the column 12 by being screwed into the nut body positioned in the inside 82.

A detection body 88 and an emergency stop dog are mounted in the mounting dovetail portion 83 via a fixture such as a bolt and nut so that the vertical position thereof can be adjusted. Here, the detector 88 is used for stopping at the uppermost stage, lowermost stage, emergency stop, and the like, and is arranged together with the emergency stop dog at predetermined upper and lower positions and, if necessary, left and right.

The main body 51 of the cab 50 is box-shaped, and a bracket 52 is provided on the front side for ascending and descending guides, and a door 53 is provided on one side so as to be openable and closable. Then, the cab side ramp 54 located from the outside of the closed door body 53 to the front is integrally connected to the bottom plate of the main body 51, and a stopper 55 is provided on a side edge portion of the cab side ramp 54, By bringing the opened door body 53 into contact with the stopper 55, the door body 53 is configured to be positioned as a safety fence outside the cab side ramp 54. A safety fence 56 is provided on the portion of the cab side ramp 54 that cannot be covered by the door 53.
Is provided. In the main body 51, an in-cab operation panel 57 is provided.

The cab 50 constructed as described above is held on the cab guide rail 80 via a roller 58 disposed on the bracket 52 so as to be able to move up and down. That is, the bracket 52 has a cross-sectional gate shape in which the support column 12 side is open, and the rollers 58 that are fitted to the cab guides 81 and guided up and down are freely rotatably attached to the free ends of both legs. I have. On the bracket 52 side, a fall prevention device 59 operable on the clamped portion 84 is provided.

In order to move the cab 50 up and down along the cab guide rails 80, a chain (an example of a cord) 60 is provided over the lower frame 11 and the upper frame 13, and both ends of the chain 60 are provided. Are connected to the lower frame 11 and the upper frame 13 via connecting members 61, respectively.
The cab lifting / lowering device 62 acting on the chain 61
Is provided on the cab 50 side.

That is, a case 63 is provided on the lower surface side of the bottom plate in the main body 51, and the cab lifting / lowering device 62 is provided in the case 63. The cab lifting and lowering device 62 includes a motor 64, a reduction device 65 and a brake device 66 that are linked to the motor 64 in a front-rear direction, and
A drive tooth wheel 68 attached to the output shaft 67
A pair of upper and lower idler gear wheels 69 and 70 are provided in front of 68. The chain 60 is wound around the upper idler wheel 69 from the front, then around the drive tooth wheel 68 from the rear, and then wound around the lower idler wheel 70 from the front.

An operation shaft 72 is interlocked with the brake device 66 via a differential device 71. The operation shaft 72 protrudes into the main body 51, and a rotation handle 73 is provided at the protruding portion. . A lever 74 for releasing the brake device is provided at the handle 73. In addition, a carriage side ramp 28 is continuously provided from the carriage 16 so that the cab side ramps 54 can be opposed to each other at intervals, and a safety fence 29 is erected on a side edge of the carriage side ramp 28. I have.

In the above-described embodiment, the access device 10 provided with the ladder 30 shown in FIGS. 1 to 4 and the access device 10 provided with the cab 50 shown in FIGS. The operation of the traveling drive unit 22 causes the traveling body 14 to travel and move, and the elevation drive unit
By performing a combination operation of moving the carriage 16 up and down by the operation of 23 and moving the loading / unloading tool 17 fork, the loading / unloading of the load 3 to / from the target storage section 2 of the shelf 1 can be performed.

In the loading / unloading device 10 provided with the ladder 30 shown in FIGS. 1 to 4, for example, a repair work in an emergency when the carriage 16 side is broken or a load collapse occurs, a regular maintenance and inspection work, etc. The ladder 30 is used when performing the operation. That is, the worker can move from the ladder 30 to the carriage 16 by climbing the ladder 30, and can perform the intended repair work, maintenance work, and the like. After performing the intended work in this manner, the worker can return to the ground side from the carriage 16 using the ladder 30.

An access device having the ladder 30 as described above
In order to attach the cab 50 to the ladder 10, first the nut 46 is unscrewed so that the ladder 30
Removed from 12. The cab guide rails 80 are attached using the remaining stud bolts 45, and the cab 50 is held by the cab guide rails 80 so as to be able to move up and down. An operation of attaching the detection body 88 before and after that, an operation of arranging the chain 60, and the like are performed, so that the loading / unloading device 10 having the cab 50 shown in FIGS. 5 to 9 can be formed.

In the loading / unloading device 10 configured as described above, the cab 50 is used when performing the above-described repair work, maintenance and inspection work, and the like. Ie cab 50
Stops at the descent limit close to the lower frame 11,
An operator can board the cab 50. Next, when the boarded operator operates the in-cab operation panel 57, the motor 64 of the cab lifting / lowering device 62 is rotated in the forward / reverse direction by the operation command via the control unit 27. Then, the drive tooth wheel 68 is rotated in the forward and reverse directions via the reduction gear 65 and the output shaft 67.

Accordingly, the driving gear wheel 68 always meshing with the chain 60 linearly (rack-like) disposed between the upper and lower frames 13 and 11 is in a state of being rotated.
The roller 58 is raised along the cab guide rail 80 while being guided by the cab guide portion 81. Then, for example, in the case of repairing the collapse of the load, the cab 50 may be stopped facing the carriage 16. At this time, the cab side ramp 54 is opposed to the carriage side ramp 28 at the same level.

After stopping the raising of the cab 50 and applying the brake as described above, the operator first opens the door body 53 and comes out on the cab side ramp 54. At this time, the door body 53 contacting the stopper 55 serves as a safety fence. Then, the worker can move from the cab-side ramp 54 to the carriage-side ramp 28, and at that time, the transfer can be safely performed by the door 53 and the safety fences 29 and 56. As a result, the user can move from the cab 50 to the carriage 16, and can perform intended repair work, maintenance work, and the like.

After performing the intended work in this way,
The operator may return from the carriage 16 to the cab 50. Then, the cab 50 is lowered to the lowermost limit, and the worker descends to the ground side, thereby completing a series of operations. When the chain 60 is broken when the cab 50 is moved up and down, the fall prevention device 59 automatically acts on the pinched portion 84, thereby preventing the cab 50 from falling.

In the above embodiment, the stud bolt 45 and the nut 46 are shown as an example of the connecting device. However, the connecting device may be of another type such as a clamp mechanism or a locking mechanism.

[0037]

According to the present invention having the above-described structure, the loading / unloading device may be manufactured in a form having a connecting device and used in an automatic warehouse. By attaching a ladder using this connecting device, a type having a ladder can be obtained. Can be provided.

When it is desired to change the existing (delivered) loading / unloading device to a type having a cab, or when a new loading / unloading device having a cab is requested,
The ladder may be removed by releasing the connecting device, and a cab guide rail may be provided using the connecting device, thereby providing a cab type access device.

As described above, according to the present invention, the access device can switch between the type using the ladder and the type using the cab.
Simple and inexpensive work can be performed in a short time.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of an access device having a ladder, showing an embodiment of the present invention.

FIG. 2 is a front view of an automatic warehouse using an access device having the ladder.

FIG. 3 is a cross-sectional plan view of a main part of the access device having the ladder.

FIG. 4 is a cross-sectional plan view of a ladder portion of the access device having the ladder.

FIG. 5 is a partially cutaway perspective view of an access device having the cab.

FIG. 6 is a side view of an automatic warehouse using the loading / unloading device having the cab.

FIG. 7 is a partially cutaway side view of a cab portion of the access device having the cab.

FIG. 8 is a cross-sectional plan view of a cab disposition portion of the access device having the cab.

FIG. 9 is a perspective view of a main part of a cab guide rail portion of the loading / unloading device having the cab.

[Explanation of symbols]

 1 Shelf 10 Loading / unloading device 11 Lower frame 12 Post 13 Upper frame 14 Traveling body 16 Carriage 17 Accessory 22 Traveling drive unit 23 Elevating drive unit 27 Control unit 28 Carrier side ramp 30 Ladder 31 Mounting bracket 32 Bolt insertion hole 45 Stud bolt (connection Device) 46 Nut (connecting device) 50 Cab 54 Cab side ramp 57 Cab inside operation panel 58 Roller 60 Chain (cord body) 62 Cab lifting / lowering device 80 Cab guide rail 81 Cab guide 85 Connecting member 86 Bolt insertion hole P Predetermined pitch H Predetermined height

Claims (1)

(57) [Claims] 1. A lower frame, a support standing upright from the lower frame, and an upper frame connected to an upper end of the support.
The traveling body is constituted by a vehicle and a carriage is provided on one side of the column in the traveling direction of the traveling body so as to be able to move up and down.On the other side of the column, a cab guide rail and a ladder are selected. A storage and retrieval device for an automatic warehouse, comprising a detachable connecting device.