JPH0459502A - Automatic warehouse - Google Patents

Abstract

PURPOSE:To effectively utilize the ground and to facilitate the operation of a forklift, in an automatic warehouse comprising a stacker crane and a pair of front and rear racks each having multistoried-storing shelves, by juxtaposing goods-transferring tables to the racks so as to be movable backward and forward. CONSTITUTION:A goods-transferring table 13 is juxtaposed to a rack 1 so as to be capable of being moved backward and forward by rails 14 whose longitudinal direction is directed backward and forward. And, the goods-transferring table 13 is moved back and forth as much as approximately 10 to 20cm by a hydraulic cylinder 15 that has been housed in the dead space between the lowermost goodsstoring shelves 2 and the floor. When a forklift 11 approaches the goods-transferring table 13, the table 13 is separated from the traveling passage of a stacker crane 4. Thus, the forklift 11 can be traveled apart from a safety fence 9, so that the operation thereof can be facilitated.

Description

[Detailed description of the invention] (Industrial application field) This invention relates to an automated warehouse.

(Prior Art) Conventionally, an automatic warehouse as shown in FIG. 1 is known. In other words, the front and rear panels have a large number of article storage shelves 2 on the top and bottom, left and right sides, which are provided at a predetermined interval in the front and back direction (the front refers to the lower side in Figure 1, and the rear refers to the upper side in the same figure). A pair of racks 1, a stacker crane 4 provided so as to be able to move left and right between the front and rear racks 1, and an article tray provided on the right side of the 1 front and rear racks 1 are connected to a transfer platform 8 and It has left and right safety fences 9 surrounding the running path to prevent people from entering the running path. An automatic warehouse is known which has a sliding fork 6, which is a loading device, and is hydraulically movable in either the front or rear direction.

(Operation of Prior Art) In the automated warehouse, the articles W stored in the article storage shelves 2 are once placed on the transfer table 8 by a forklift 11, and then moved to a predetermined article storage area by the stacker crane 4. It is stored on shelf 2. Conversely, the articles W on the article storage shelf 2 are once lowered onto the transfer stand 8 by the stacker crane 4, and then transported out by the forklift 11.

(Disadvantages of the Prior Art) As shown in FIG. 1, the automated warehouse is one in which a large number of sets are provided, with front and rear racks 1 being one set, and the racks 1 of these sets being lined up in the front and back direction. Therefore, when the forklift 11 approaches the transfer platform 8, the goods receiver
It was impossible to approach from the front and rear, and the vehicle had no choice but to approach from the left and right. In addition, the goods can be received at the delivery table 8.
The same thing happened when I left.

By the way, in an automated warehouse, in order to facilitate the transfer of goods W between the slide fork 6 and the transfer platform 8, the transfer platform 8 is placed as close to the running path of the stacker crane 4 as possible. Accordingly, in order to facilitate the right and left movement of the forklift 11 that carries out the transfer, the article W receiver is provided between the article receptacle and the transfer table 8.
Safety fence 9 is also installed as much as possible (to avoid collision with stacker crane 4).
(within a range that does not interfere with the stacker crane 4). However, there is a limit to how close the safety fence 9 can be to the traveling road side of the stacker crane 4, so in reality, when the goods receiver approaches and moves away from the transfer platform 8, the driver must be aware that the forklift 11 will come into contact with the safety fence 9. The forklift) 11 will be driven along the safety fence 9 in a situation where the forklift) 1
The disadvantage is that the forklift 11 must be operated at low speed while being careful not to collide with the safety fence 9.

(Object of the Invention) The present invention has been made for the purpose of solving the above-mentioned drawbacks.

(Examples) The present invention will be described below based on two embodiments shown in the drawings. Note that the same members as those shown in FIG. 1 are designated by the same reference numerals.

Embodiment 1 (See FIG. 2) An article receiving and passing table 13 is placed on a rail 14 whose longitudinal direction is oriented in the front-rear direction, and is movable back and forth. The article receiving and passing table 13 is driven by a fluid pressure cylinder 15 or the like housed in a dead space between the lowermost article storage shelf 2 of the rack l and the floor surface. In addition, the forward and backward movement of the transfer table 13 for the goods receiver is 10 to 20 cm.
A certain amount is enough.

In the above, the forklift ll is the goods receiving platform 1.
3, the article receiver moves the transfer table 13 in a direction away from the travel path of the stacker crane 4.

Embodiment 2 (see FIG. 3)
It is designed to rotate horizontally by ~30 degrees. In this article receiver, the transfer table 17 is rotated once by a fluid pressure cylinder 19 or the like.

In the above, the forklift) 11 is the goods receiving platform 1.
7, the article receiver rotates the transfer table 17 by 20 to 30 degrees counterclockwise in FIG.

(Effects of the Invention) The present invention achieves the following effects with the above configuration.

■According to the invention of claim 1, since the article tray is provided with a transfer table that can be moved back and forth, when the forklift approaches the article tray, the article tray moves the article tray to the star 7.
By moving the forklift away from the car crane travel path, the forklift can be moved left and right away from the safety fence, making it easier to operate compared to conventional methods. The space for the adjacent goods can also be used as a transfer platform, so the land can be used effectively.

According to the invention of claim 2, since the transfer table is provided so as to be horizontally rotatable, when the forklift approaches the transfer table, the amount of articles can be controlled by horizontally rotating the transfer table. Since the forklift can be moved left and right at a position away from the safety fence, it is easier to drive than in the past.

[Brief explanation of the drawing]

Fig. 1 is a horizontal sectional view of a conventional automated warehouse with the middle omitted; Fig. 2 is a horizontal sectional view of a conventional automated warehouse with the middle omitted;
The figure is a horizontal cross-sectional view with the middle omitted, showing a second embodiment of the present invention. l... Rack, 2... Shelving for the amount of goods, 4... Stuff car crane, 5... Lifting platform, 6... Slide fork, 9... Safety fence 1, 13... Goods The amount is on the passing table,
17...The quantity of goods is the transfer stand patent.Applicant: Agent for Murata Machinery Co., Ltd.

Claims (1)

[Scope of Claims] 1. A pair of front and rear racks having a large number of article storage shelves vertically and horizontally, which are provided at a predetermined interval in the front-rear direction, and which are movable left and right between the front and rear racks. a stacker crane provided therein, at least one article delivery stand provided on the right or left side of the front and rear racks, and left and right safety fences surrounding the running path to prevent people from entering the running path of the stacker crane; It has
An automatic warehouse in which the stacker crane has a lifting platform that can be raised and lowered and an article transfer device provided on the lifting platform, and the article transfer table is movable back and forth. 2. A pair of front and rear racks each having a large number of storage shelves vertically and horizontally, which are provided at a predetermined interval in the front and back direction, and a stacker crane that is installed to be able to move left and right between these front and rear racks. , at least one article delivery stand provided on the right or left side of the front and rear racks, and left and right safety fences surrounding the running path of the stacker crane to prevent people from entering the running path. ,
An automatic warehouse in which the stacker crane has a lifting platform that can be raised and lowered and an article transfer device provided on the lifting platform, and the article transfer table is horizontally rotatable.