JPH09328205A - Automated storage and retrieval system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To directly stack and put loading, even when a stacker crane is projected from a passage formed between shelves, by arranging a fork in such a position that its rotary shaft rotating about the vertical shaft center is positioned frontward from the end frame in a position for separating in the traveling direction of the lower traveling frame of the stacker crane. SOLUTION: Each shelf is arranged between a post 2 stood at a prescribed interval and a post 2 stood adjacent thereto in the depth direction and formed into a frame structure along with load receiving members 3 projecting laterally and the others so as to constitute a plurality of storage parts 4 respectively and a pair of them are arranged in parallel across a traveling route of a stacker crane. The stack crane is provided with a movable part 13 which is mounted on the raising body so as to move in the left/right direction and a fork 14 which is rotatably mounted on this movable part 13 and locked to the rotary shaft in a position where the rotary shaft of the movable part 13 is projected from the front end of the lower frame 7. It has such structure that when the rotary shaft is rotated under the fork 14, it is prevented from being in contact with the lower frame 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic warehouse which is equipped with a stacker crane which can be directly stacked at a position where a traveling path formed between shelves is removed.

[0002]

2. Description of the Related Art A conventional stacker crane equipped with a cargo handling mechanism for turning a fork around a vertical axis, a plurality of posts, and a shelf having a storage portion formed by a cargo receiving member attached to the posts. In the warehouse, a swing shaft that swings the forks around the vertical axis is arranged in the lower traveling frame of the stacker crane.

[0003]

Conventionally, as described above, since the swing shaft for swinging the forks around the longitudinal center is arranged in the lower traveling frame of the stacker crane, the shelf is Even when the stacker crane came out from the passage formed between the rack and the shelf, the lower traveling frame hindered the direct stacking or direct placing work. The present invention enables this direct stacking or direct placing work.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a storage unit is formed by a stacker crane equipped with a cargo handling mechanism that pivots a fork around a longitudinal axis, a plurality of posts, and a cargo receiving member attached to the posts. In an automated warehouse consisting of a rack and a rack, the swivel axis that swivels the forks around the vertical axis is
The above-mentioned problem is solved as a configuration in which the lower traveling frame of the stacker crane is arranged in front of the end frame at a position separated in the traveling direction.

A swivel axis for swiveling the forks around the longitudinal axis is formed between shelves by arranging them forward from the end frame of the lower traveling frame of the stacker crane, which is separated from the lower traveling frame in the traveling direction. At the position where the traveling route is removed, the forks can be directly stacked or directly placed without obstructing the lower traveling frame or the traveling rail installed on the traveling route.

[0006]

Embodiments of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 to 3, the shelf 1 includes posts 2 standing upright at predetermined intervals and posts 2 adjacent in the depth direction.
The stacker crane 3 is formed in a frame shape by the load receiving members 3 and the like that are disposed in the space and project in the lateral direction, thereby forming a plurality of storage portions 4 in the vertical direction and the lateral direction, respectively. A pair is arranged in parallel with the path 5 sandwiched therebetween.

As shown in FIGS. 1 to 3, the stacker crane 6 includes a lower frame 7 and two first and second masts 9 and 10 which are erected separately in the front-rear direction of the lower frame 7.
And the upper frame 8 connected to the upper ends of the two first and second masts 9 and 10 constitute the traveling main body 11, and the elevating body 12 is vertically movable on the front first mast 9. A movable part 13 is mounted on the lifting body 12 so as to be movable in the left-right direction, and a fork 14 is mounted on the movable part 13 so as to be rotatable.

The lower frame 7 has drive wheels 16 and driven wheels 17 supported by floor-side running rails 15 arranged in front and rear, and the upper frame 8 is guided by guide rails 18 on the ceiling side. A guide wheel 19 is provided. A traveling device 20 is provided at the rear end of the lower frame 7, and the traveling device 20 drives the drive wheels 16.

Further, a traveling device 20 is mounted on the lower frame 7.
At the same time, an elevating device 21 for elevating the elevating body 12 is provided.

A movable part 13 mounted on the elevating body 12 so as to be movable in the left-right direction, and a movable part 13 rotatably mounted on the movable part 13, and a rotating shaft of the movable part 13 projects from the front end of the lower frame 7. The fork 14 is locked to the rotating shaft 22 at the position so that the fork 14 does not come into contact with the lower frame 7 even if the fork 14 turns below the fork 14.

[0011]

As described above, according to the present invention, the swivel axis for swiveling the forks around the longitudinal axis is arranged in front of the end frame of the lower traveling frame of the stacker crane, which is spaced apart in the traveling direction. Since it is configured, it can be directly stacked at the end of the shelf,
Since it can be directly wholesaled, a fixed base or a lifter as a peripheral device of the stutter crane is not required, and the layout can be simplified and the cargo handling work efficiency can be improved.

[Brief description of drawings]

FIG. 1 shows a side view of a cubic shelf embodying the present invention.

FIG. 2 shows a front view of a cubic shelf implementing the present invention.

FIG. 3 shows a plan view of a stacker crane of the present invention.

FIG. 4 shows a side view of the stacker crane of the present invention.

FIG. 5 shows a rear view of the stacker crane of the present invention.

[Explanation of symbols]

 1 Shelf 2 Post 3 Loading member 4 Storage section 5 Traveling path 6 Stacker crane 7 Lower frame 8 Upper frame 9 First mast 10 Second mast 11 Traveling body 12 Elevating body 13 Moving part 14 Fork 15 Traveling rail 16 Driving wheel 17 Driven wheel 18 guide rail 19 guide wheel 20 traveling device 21 lifting device 22 rotating shaft

Claims (1)

[Claims] 1. A stacker crane equipped with a cargo handling mechanism for turning a fork around a longitudinal axis, and a plurality of posts,
In an automatic warehouse consisting of a shelf that forms a storage section with a load receiving member attached to the post, a pivot axis that pivots a fork around a longitudinal axis is located at a position separated in the traveling direction of the lower traveling frame of the stacker crane. An automated warehouse characterized by being placed forward from the end frame of the.