JP2734262B2 - 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 storage and retrieval device for an automatic warehouse, which is installed, for example, in a factory, is supported and guided by floor rails, and can travel on a fixed path in front of a shelf.

[0002]

2. Description of the Related Art As an automatic warehouse comprising a shelf and a loading / unloading device, for example, a structure disclosed in Japanese Patent Application Laid-Open No. 2-163294 is provided. That is, the loading / unloading device includes a lower frame, a pair of front and rear posts erected on the lower frame, an upper frame connecting the upper ends of the posts, and a lifting platform guided by both posts.
The lower frame is provided with wheels rolling on floor rails laid on the floor surface, which are distributed back and forth. Further, on the lower frame, a traveling drive device and an elevating drive device are mounted outside one post, and a control device is mounted outside the other post. A ladder for maintenance and inspection is disposed on the outer surface of the other post, which is located above the control device.

According to this conventional type, the shelf and the loading / unloading device are operated by a combination of a traveling motion along a fixed path along the front surface of the shelf, a lifting / lowering motion of a lifting / lowering platform, and a lateral movement of a loading / unloading tool. Delivery of cargo can be performed between At this time, the traveling motion can be performed by driving the wheels in the forward and reverse directions by the traveling drive device.

[0004] Maintenance and inspection are performed by a worker using a ladder. At that time, since the control device is mounted outside the other post, the lowermost position of the ladder arranged above this control device is considerably higher than the control device with respect to the floor surface. The ladder is at a high position, so that when the ladder is used, it is not easy to put a foot on the bottom of the ladder. Therefore, conventionally, an auxiliary ladder was taken out from another location and used by hanging it on the lower portion of the ladder, or an auxiliary ladder swingably connected to the lower portion of the ladder was used by swinging downward.

[0005]

According to the above-mentioned conventional type, by mounting a control device outside the other post,
The length of the lower frame becomes longer, which increases the length of the machine and lowers the storage efficiency. In the case where the auxiliary ladder is taken out from another location, the work of transporting the auxiliary ladder becomes troublesome, and a storage place for the auxiliary ladder must be secured. Further, in the case of a type in which an auxiliary ladder is swingably connected to the lower part of the ladder, initial operation of downward swing cannot be easily performed, and noise is generated due to vibration during operation.

SUMMARY OF THE INVENTION An object of the present invention is to provide a storage and retrieval device for an automatic warehouse in which the length of the ladder can be shortened and the lowermost stage of the ladder can be located near the floor.

[0007]

According to a first aspect of the present invention, there is provided an automatic storage and retrieval apparatus for an automatic warehouse which is supported and guided by a floor rail and is capable of traveling on a fixed path in front of a shelf. , A lower frame, a pair of front and rear posts erected from the lower frame, a lifting / lowering body disposed between the posts and having a retractable insertion / removal tool, and a control unit disposed on a side surface of the lower frame. doing.

[0008] A second aspect of the present invention provides a storage and retrieval device for an automatic warehouse, wherein a ladder is provided on the outer surface side of the post of the first aspect.

[0009]

According to the first aspect of the present invention, the shelves are moved relative to the shelves by a combination of a running motion of the loading / unloading device on a fixed path, a lifting / lowering motion of the lifting / lowering body, and a lateral movement of the loading / unloading device. Loading and unloading of cargo can be performed, and at this time, the operation of each unit is controlled by the control unit. Further, by disposing the control unit on the side surface of the lower frame, the length of the lower frame can be reduced, and the post mounting operation is not hindered, and the workability of the post mounting operation is improved.

According to the configuration of the second aspect of the present invention, the maintenance and inspection of the access device can be performed by an operator using a ladder. At this time, since the control unit does not exist directly below the ladder, the lower end of the ladder can approach the floor, and the operator can use the ladder without using an auxiliary ladder or the like.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The frame-like shelf 1 has a plurality of storage sections 2 formed in the up-down direction and the left-right direction, and each storage section 2 is configured to support a load 3 (directly or through a pallet) via arms. ing. The shelves 1 are arranged side by side with a passage 4 in which a loading / unloading device 10 that can run on a fixed path 5 is provided.

The loading / unloading device 10 includes a lower frame 11
And a pair of front and rear posts erected from the lower frame 11
A traveling body is constituted by 12, 13 and an upper frame 14 connecting the upper ends of the posts 12, 13. And
An elevating body 15 is arranged between the posts 12 and 13, and a fork 17 (fork) which can be moved in and out of the storage unit 2 by the operation of the elevating device 16 is arranged on the elevating body 15. ing. The lower frame 11 has a drive wheel 18 and a driven wheel 19 that can roll on the floor rail 6 in a distributed manner, and the upper frame 14 has a guide roller 20 guided by the ceiling rail 7.

The driven wheel 19 (the driving wheel 18 is almost the same).
Is attached to the lower frame 11 as follows. That is, the driven wheel 19 has a ring shape, and a bearing (bearing) 21 is fitted inside the driven wheel 19, and the two 19, 21 are integrated by a ring 22, a bolt 23 and the like. The driven shaft 24 which can be inserted into the bearing 21 is formed as a stepped shaft by a large-diameter shaft portion 24A and a small-diameter shaft portion 24B. Then, the small-diameter shaft portion 24B is inserted into the bearing 21, and the amount of insertion is regulated by the step surface between the two shaft portions 24A and 24B abutting on the bearing 21.

The lower frame 11 is constructed by arranging a pair of left and right channel members 11A and 11B at predetermined intervals with their open portions facing outward, and a pair of left and right channel members 11A and 11B is provided between the channel members 11A and 11B. The flange members 25A and 25B are fixed after being fitted from above. These flange members 25A and 25B have holding holes 26A for the shaft portions 24A and 24B,
26B is formed, and operation holes 27A and 27B are formed in the channel members 11A and 11B so as to face the holding holes 26A and 26B. The driven shaft 24 is inserted into the holding holes 26A, 26B through the operation holes 27A, 27B.
By using B, it is fixed between the flange members 25A and 25B via the backing plate 28 and the bolt 29.

On the lower frame 11, one post 12
Outside, a lifting drive device 30 interlocked with the lifting body 15
And a traveling drive device 31 interlocked with the drive wheels 18. The lower frame 11 is located below the other post 13.
A control unit 32 for controlling each operating portion of the access device 10 is provided on the side surface of the device. Where the control unit
The non-fitting portion 33 is formed on the back side of the fitting 32. The fitting 32 is fitted to an outer opening fitting portion formed by the channel materials 11A and 11B, and is fixed by bolts 34 or the like.

A ladder 35 for maintenance and inspection is provided on the outer surface of the other post 13 in the front-rear direction. This ladder
35 comprises a pair of left and right handrails 36, and a plurality of upper and lower footrests 37 provided between these handrails 36, using a plurality of portal-shaped brackets 38 in plan view, Are connected at predetermined intervals.

Next, the operation of the above embodiment will be described.
In an automatic warehouse composed of the loading / unloading device 10 and the shelf 1, a combination of a running motion of the loading / unloading device 10 on the fixed path 5, a lifting / lowering motion of the lifting / lowering body 15, and a horizontal loading / unloading of the loading / unloading device 17 is performed. The loading / unloading of the load 3 can be performed with respect to the target storage section 2 of the shelf 1, and at this time, the operation of each section is controlled by the control unit 32. And the maintenance and inspection of the access device 10
This can be performed by the worker using the ladder 35. At that time the ladder
Since the control unit 32 does not exist directly below the ladder 35, the lower end of the ladder 35 can approach the floor, so that the operator can use the ladder 35 without using an auxiliary ladder or the like. In addition, by disposing the control unit 32 on the side surface of the lower frame 11, the length of the lower frame 11 can be shortened to shorten the machine length, and the storage efficiency can be improved.
Since the mounting does not hinder the mounting, the workability of the post mounting operation can be improved.

In the above-described embodiment, the control unit 32 is disposed on the side surface of the lower frame 11 below the other post 13.
Other positions may be used as long as they are eleven sides.

[0019]

According to the first aspect of the present invention, the traveling movement of the loading / unloading device on a fixed path, the lifting / lowering movement of the lifting / lowering body,
By the combined movement with the horizontal movement of the access tool,
Loading and unloading of goods to and from the shelf can be performed, and at that time, the operation of each part can be controlled by the control unit. In addition, by arranging the control unit on the side of the lower frame, the length of the lower frame can be shortened and the machine length can be shortened, the storage efficiency can be improved, and the work efficiency of post mounting work is improved because it does not hinder the post mounting work it can.

Further, according to the second invention, maintenance and inspection of the access device can be performed by an operator using a ladder. At this time, since the control unit does not exist directly under the ladder, the lower end of the ladder can be approached to the floor, and the operator can use the ladder without using an auxiliary ladder or the like.

[Brief description of the drawings]

FIG. 1 is a side view of an access device showing an embodiment of the present invention.

FIG. 2 is a front view of the automatic warehouse.

FIG. 3 is a perspective view of the control unit disposition portion.

FIG. 4 is a front view of the control unit installation section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 shelf 2 storage part 5 fixed path 6 floor rail 10 access apparatus 11 lower frame 12 post 13 post 14 upper frame 15 elevating body 17 access tool 18 drive wheel 19 driven wheel 30 elevating drive apparatus 31 traveling drive apparatus 32 control unit 33 non-fitting Joint 35 Ladder 36 Handrail 37 Footrest 38 Bracket

Claims (2)

(57) [Claims] 1. A loading / unloading device supported and guided by a floor rail and capable of running on a fixed path in front of a shelf, comprising: a lower frame; a pair of front and rear posts erected from the lower frame; And a control unit disposed on a side surface of the lower frame, wherein the device includes a lifting / lowering body having a retractable insertion / removal tool. 2. An automatic storage and retrieval apparatus according to claim 1, wherein a ladder is provided on an outer surface side of the post.