JP2979881B2 - 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, and more particularly to a loading / unloading device for an automatic warehouse to which a cab used for maintenance and inspection work can be added.

[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 to be a traveling crane of a type that does not require a lifting cab, an operation of removing the lifting cab from the column side is required. It is necessary to arrange ladders for repair and inspection on the columns, and these operations are complicated and cannot be performed in a short time. Conversely, if you want to replace the existing traveling crane with the ladder with a traveling crane with a lifting cab, it is necessary to remove the ladder from the column side and to arrange the lifting cab on the column side. However, 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 be easily switched 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
The upper frame coupled to constitute the traveling body, provided with a vertically movable carriage to one side of the strut in the running direction of the traveling body, the struts on the other side
A ladder is provided along the ladder, and this ladder is composed of a pair of side members fixed to the column side and a plurality of upper and lower ramp members provided between these side members, and has a lifting device on both side members.
An elevating guide for the operator-mounted cab 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. And in the type of in / out device without cab,
For example, a ladder is used for emergency repair work in which the carriage side of the loading / unloading device has failed or collapsed, or when performing periodic maintenance and inspection work. That is, the worker can get on and off the carriage by climbing the ladder.

In order to dispose the cab in the above-mentioned loading / unloading apparatus having a ladder, the cab may be attached to the ladder side so as to be able to move up and down by using a lifting guide. 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.

[0010] That is, an operator can board the cab in a state where the cab is stopped at the lower limit by the guide on the ladder side. Then, while riding, the cab is raised along the ladder side and stopped at a predetermined position. Then, an operator between the cab and the carriage may get on and off.

[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 show a type without a cab. A frame-like shelf 1 has a plurality of storage sections 2 formed in the vertical and horizontal directions.
(Directly or via a pallet). 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 includes a lower frame 11
A traveling body 14 is constituted by a pair of columns 12 formed of a pair of square pipes (or round pipes) standing upright from the lower frame 11 side, and an upper frame 13 connecting the upper ends of the columns 12. And between these two columns 12, these columns
A carriage 16 which is guided up and down via guide rollers 15 having both side surfaces of 12 as guide surfaces is arranged. 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 a plan view are fixed to a plurality of locations on the outer side surface of the support column 12 in the vertical direction by stud bolts 32 or the like via the connection plate portions. The ladder 30
Is composed of 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.

[0016] Here, either side member 33 is made of aluminum extrusion, the elevation guide portion 35 of the cab on the right and left side outer surface (described later.) Are formed in the concave groove shape, also for the elevation guide portion 35 A dovetail groove portion 36 for connection is formed at a position adjacent to the column 12 side. Further, a T-shaped or I-shaped projection 38 is integrally formed on the outer surface side in the front-rear direction of both side members 33, and two dovetail grooves 39 are formed on the outer surface side of one side member 33, In addition, a dovetail groove 40 is formed on the inner surface of the side member 33 in the left-right direction. The ramp member 34 is formed of a pipe body, and the coupling members 41 integrated at both ends thereof are fitted into the dovetail grooves 40 of the both side members 33, and are integrated after being caulked, thereby forming the ladder 30. I have.

The ladder 30 thus constructed is disposed with the outer surface of the side member 33 abutting on the inner surface of the leg of the mounting bracket 31, and the ladder 30 is mounted on the ladder 30.
By screwing a bolt 42 passed through the leg portion from the outside to a nut 43 positioned in the dovetail portion 36, the bolt 42 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 8 show a type having a cab,
A cab 50 used for maintenance and inspection or in an emergency is provided on the other support 12 outside the traveling direction so as to be able to move up and down. That is, the main body 51 of the cab 50 has a box shape, a bracket 52 for ascending / descending guide is provided on the front side, and a door body 53 is provided on one side face so as to be openable and closable.

A cab-side wrap 54 extending 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 of the cab-side wrap 54. Provided and opened door 53 with stopper
The door 53 is configured to be positioned as a safety fence outside the cab side ramp 54 by being brought into contact with the door 55. A safety fence 56 is provided in a portion of the cab side ramp 54 that cannot be covered by the door 53. In the main body 51, an in-cab operation panel 57 is provided.

The carriage side ramp 28 is connected to the carriage 16 so that the cab side ramp 54 can be opposed to the cab side at an interval.
A safety fence 29 is provided upright on the side edge of the rail.

The cab 30 having the above-described structure can be moved up and down by fitting a plurality of rollers 58 provided on a bracket 52 of the ladder 30 attached to the outer surface of the column 12 to the elevating guide portion 35 of the ladder 30. Is held in. And bracket
The 52 is provided with a fall prevention device 59 operable on the protrusion 38, and the dovetail groove 39 is provided with a detection plate 60 for elevation control.

In order to move the cab 50 up and down along the ladder 30, a chain (an example of a cord) 61 is provided over the lower frame 11 and the upper frame 13, and the chain 61 is provided.
Are connected to the lower frame 11 and the upper frame 13 via connecting members 75, respectively. A 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 of 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 61 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. A lever 74 for releasing the brake device is provided at the handle 73.

The cab 50 shown in FIGS.
In the loading / unloading device 10 of a type not having a drive unit, the traveling main unit 14 is caused to travel by the operation of the traveling drive unit 22 by an operation command or the like via the control unit 27, and the carriage 16 is moved by the operation of the elevating drive unit 23. Is moved up and down and the loading / unloading tool 17 is moved by a fork so that the load 3 can be put in and taken out of the target storage section 2 of the shelf 1.

The ladder 30 is used, for example, when performing an emergency repair work in which the carriage 16 side of the loading / unloading device 10 is broken down or a load collapse occurs, or a regular maintenance and inspection work. 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.

In order to attach the cab 50 to the loading / unloading device 10 which can use the ladder 30 as described above, the operation of fitting the roller 58 to the elevating guide 35 of the ladder 30, the operation of attaching the detection plate 60, and the operation of the chain 61 And the like, and the like, thereby forming the access device 10 having the cab 50 shown in FIGS. 5 to 8.

In the loading / unloading device 10 configured as described above, the cab 50 is used, for example, when performing an emergency repair work in which the carriage 16 is broken down or a load collapse occurs, or a regular maintenance and inspection work. You. Ie cab
The cab 50 is stopped at a lower limit close to the lower frame 11, and an operator can board the cab 50. Then, the boarding operator operates the cab operation panel 57,
In response to an operation command via the control unit 27, the motor 64 of the cab lifting / lowering device 62 is rotated in the normal or reverse direction. Then, the drive tooth wheel 68 is rotated in the forward and reverse directions via the reduction gear 65 and the output shaft 67.

Therefore, the drive tooth wheel 68 which is always meshed with the chain 61 disposed linearly (in a rack shape) between the upper and lower frames 13 and 11 is rotated, and the cab 50 is connected to the ladder 30 ( It can be raised along the struts 12). 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 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. The operator can then move from the cab side ramp 54 to the carriage side ramp 28. 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 61 is broken when the cab 50 is moved up and down, the fall prevention device 59 automatically operates, thereby preventing the cab 50 from falling.

[0032]

According to the present invention having the above-mentioned structure, it is sufficient to manufacture the take-in / out device in a form having a ladder and employ it in an automatic warehouse, and it is possible to provide a take-in / out device of a type that does not require a cab by using it as it is.

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,
May be vertically movably arranged cab by utilizing the elevation guide portion which is previously formed on the ladder, thereby Ru can provide access device of the type having a cab. As described above, according to the present invention, the loading / unloading device can switch between the type using the ladder and the type using the cab with a simple operation in a short time.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of an access device without a cab, showing an embodiment of the present invention.

FIG. 2 is a front view of an automatic warehouse using an access device without the cab.

FIG. 3 is a cross-sectional plan view of a main part of the access device having no cab.

FIG. 4 is a cross-sectional plan view of a ladder portion of the access device without the cab.

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.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 shelf 6 floor rail 10 access device 11 lower frame 12 support 14 traveling body 16 carriage 17 access tool 22 traveling drive unit 23 lifting drive unit 26 power unit 27 control unit 28 carriage side ramp 30 ladder 33 side member 34 ramp member 35 lifting guide Part 50 Cab 52 Bracket 57 Cab control panel 58 Roller 61 Chain (Rod) 62 Cab drive unit

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.
A traveling body is constituted by the supporting body, and a carriage that can move up and down is provided on one side of the column in the traveling direction of the traveling body, and a ladder is provided along the column on the other side, and the ladder is provided on the side of the column. Consists of a pair of fixed side members and a plurality of upper and lower tapping members provided between these side members,
An access device for an automatic warehouse, wherein a lift guide portion of an operator-carrying cab having a lift device is provided on both side members.