JPS63185708A - Stacker crane - Google Patents

Abstract

PURPOSE:To shorten time for taking goods in and out a warehouse and reduce floor space for a stacker crane in a sterical waterhouse, or otherwise, by providing a fork supporting arm on the carriage of a stacker crane protrudingly from the warehouse entrance side and mounting a fork extension-contraction device rotatably on the fork supporting arm. CONSTITUTION:When a stacker crane 5 stops at a warehouse entrance, a fork extension-contraction device 12 is extended or contracted, an extension- contraction fork 13 is inserted into a hole in the center of a goods 15, a carriage 10 is slightly raised and the goods 15 is supported with the extension-contraction fork 13. Next, the fork extension-contraction device 12 is contracted and, at the same time, the stacker crane 5 is moved in a manner so that the center of axis of the form extension-contraction device 12 and a storage section will dualize. Then, the fork extension-contraction device 12 is turned 90 deg. to face the storage section accurately, the fork extension-contraction device 12 extended to insert into the supporting beam of the goods 15 and the goods 15 is stored. Time for taking goods in and out of a warehouse can be shortened and the floor space can be reduced by this constitution.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention aims to shorten the conveyance route for goods entering and leaving the warehouse using a stacker crane used in a multi-story warehouse, etc., thereby simplifying the delivery and reception of goods in front of the multi-story warehouse. This is related to the scooker cleaner that can be used.

[Conventional technology]

As shown in FIG. 9, the general layout of a multi-story warehouse is such that shelves 2 having article storage compartments 1 with multiple vertical stages and multiple horizontal cylinders are arranged facing each other with a crane aisle 3 in between. A stacker crane 5 runs on a rail 4 provided on a crane aisle 3, and a storage section 1 for storing and unloading goods.
At the same time, a carriage (not shown) travels in the vertical direction using the cleaning mast 6 of the stacker crane 5 as a traveling guide, and is positioned and stopped at a storage compartment for articles to be stored and taken out. Articles are transferred between I2 and crane 5 using the telescopic fork.

In addition, in large vehicle body warehouses where there is a large volume of goods entering and leaving a multi-storey warehouse, the goods are generally placed on circulating trolleys 8 that run on rails 7 laid in a loop shape. Loading is carried out between the cart 8 and the loading/unloading device 9 adjacent to the loading/unloading side of the multi-story warehouse, and a telescopic fork extending toward the loading/unloading device 9 side between the loading/unloading device 9 and the stacker crane 5. The transfer is performed by

Therefore, in such a case, the loading/unloading device 9 is indispensable between the circulating trolley 8 and the multi-storey warehouse.
A long space is required.

Further, there is the inconvenience that the cargo must be temporarily placed in the storage/unloading device 9 when loading and unloading the cargo.

In order to directly transfer the load from the stacker crane 5 to the circulating trolley 8 without installing the loading/unloading device as described above, a telescopic fork extending in a direction perpendicular to the running direction of the crane 5 is placed on the circulating trolley 8. Since it is necessary to extend the distance, the crane 5 and the circulating trolley must be lined up parallel to each other.

Therefore, as shown in FIG. 10, the branch rail 4A turns the stacker crane 5 90 degrees and pulls it out of the warehouse.
Even in such a case, the installation area of the rail 4A becomes indispensable.

In addition, the stacker crane 5 must be moved onto the rail 4A by means such as point switching, pulled out of the multi-storey warehouse, and turned 90 degrees.

[Problems to be solved by the invention] Multi-story warehouses have advantages such as being unmanned by computer control and being able to store a large amount of cargo by making use of narrow spaces in three-dimensional space, but in order to further increase the efficiency of multi-story warehouses, , the next 2
Further improvements must be made on two technical issues.

(1) Storage efficiency of multi-story warehouses In order to make the most of expensive land, it is necessary to store a large number of items in a limited floor space. In addition, the construction cost of the building is high, and the ground side equipment cost of the vertically long stacker crane is also high. Therefore, it is necessary to reduce the floor area other than the storage compartment of the warehouse and the floor area around the warehouse.

This is because most of the floor space other than the storage section of the warehouse is a clean aisle, so reducing the floor space around the warehouse is an issue.

(2) Reducing the loading and unloading time The loading and unloading processing capacity must be sufficient to cope with the rush hour, and to do this, the loading and unloading time per item must be shortened.

In order to improve the above two technical issues, it is necessary to remove the loading/unloading device installed between the multi-level warehouse, the circulating trolley, and the traveling route, and to directly transfer goods between the multi-level warehouse and the circulating trolley. It is hoped that this will be given and received.

The present invention solves these problems.

[Failure to solve the problem]

The present invention provides a stacker crane having a carriage that moves up and down on a crane aisle between storage shelves set up opposite each other. The invention is characterized in that a fork extension and retraction device is rotatably pivotally attached to the fork support arm.

[For production]

With the above configuration, the fork telescopic device pivotally attached to the fork support arm is rotated 90 degrees to extend the telescopic fork toward the article stored in the storage shelf, scoop up the article, and shorten the fork. Next, the fork telescopic device is rotated 90 degrees and returned to its standard state.

Next, the stacker crane runs to the entrance/exit end of the multi-storey warehouse and is stopped! The goods are transferred to the circular traveling trolley and the unloading operation is completed.

The warehousing operation is a reverse operation of the warehousing operation.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, a stacker crane 5 runs on a rail 4 laid on a crane aisle between storage shelves, and a carriage 10 moves up and down along a crane mast 6, similar to the conventional stacker crane. .

However, from the center of the carriage 10, the stacker cleaner 5
There is no telescopic fork that extends perpendicularly to the running direction of the stacker crane, but a fork support arm 11 is provided protruding from the carriage 10 toward the warehouse entrance/exit side of the stacker crane 5, and a fork telescopic device 12 is pivotally attached to the fork support arm 11. do.

Reference numeral 13 indicates a telescopic fork attached to the fork telescopic device 12.

As shown in FIGS. 3 and 4, the fork telescopic device 12 has a similar structure to the three-stage telescopic fork of a general stacker crane, and is composed of a fixed beam 12a, an intermediate ridge 12b, and a movable beam 12C. An L-shaped telescopic fork 13 is attached to the lower surface of 12c.

The tip of the telescopic fork 13 has a U-shape to avoid interference with an article storage shelf (described later) (see FIG. 6).

A pivot (not shown) is erected on the upper surface of the fixed beam 11a, rotatably attached to a hole (not shown) drilled in the fork support arm 11, and a motor 14 is mounted at the end of the pivot. The output shaft is connected.

On the other hand, the articles 15 stored in the multi-storey warehouse have a cylindrical shape, and the shape of the shelves storing the articles 15 is, as shown in FIG. A plurality of cantilever-shaped supports 17 are fixed.

The inner circumferential surface of the article 15 is placed and stored on such supports or 17, and the articles 15 stored on a large number of supports or 17 are stored in the eighth support or 17.
As shown in the figure, they are arranged in an orderly manner at equal intervals.

As shown in FIG. 6, the support orifice 17 has a substantially rectangular cross section long in the vertical direction, and the telescopic fork 13 can be inserted into the space formed between the article 15 and the support orifice 17. be.

As shown in FIG. 7, the layout of the multi-story warehouse is such that the storage shelves 2 are erected facing each other across the running rails 4 of the stacker cranes 5 laid on the crane aisle 3, and the storage shelves 2 are supported or Article 15 is inserted into 17 and stored.

The rails 7 of the circulating trolleys 8 are laid adjacent to the end of the entrance/exit side of the multi-level warehouse.

The circulating trolley 8 may be any equipment that conveys the articles 15 to be stored or removed from the warehouse, and may be a conveyor, for example.

In the multi-story warehouse configured as described above, in order to store the articles 15 placed on the circulation trolleys 8, first, the stacker crane 5 stops at the entrance/exit end of the multi-story warehouse, and the fork extension/retraction device 12 is extended. Insert the telescopic fork 13 into the center hole of the article 15, raise the carriage 10 slightly, and scoop up the article 15 with the telescopic fork 13 (see Figure 3).
.

Next, the fork telescopic device 12 is shortened (the article 15 is 1
5A), the stacker crane 5 travels to a position (15B) where the pivot center of the fork telescopic device 12 faces the storage compartment and stops.

Then, when the fork telescoping device 12 is rotated 90 degrees toward the storage compartment (position 15C) (see the dashed line in FIG. 4) and the fork telescoping device 12 is extended, the article 15 can be
(position 15D) Then, when the carriage 10 is lowered slightly, the article 15 is placed on the support or 17 (position 15D).
(see figure).

Thus, the warehousing operation is completed by shortening the fork telescopic device 12 again.

The warehousing operation is performed by the reverse procedure of the warehousing operation.

〔effect〕

As described above, if the stacker crane of the present invention is used, goods can be delivered and received directly from a conveyance device such as a circulation trolley by simply moving the stacker crane to the end of the warehouse on the entry/exit side. Since the travel distance of the stacker crane is shortened and there is no need to temporarily store articles in the middle, the required floor space of the entire multi-story warehouse can be reduced.

Therefore, it has become possible to shorten the time taken to enter and exit the multi-storey warehouse and to reduce the required floor area of the entire multi-storey warehouse facility.

In this embodiment, the shape of the stored article was described as being cylindrical, but the shape of the article is cylindrical. The shape is not limited to the shape, and a box-like shape is also possible, for example.

[Brief explanation of the drawing]

Figures 1 to 8 show embodiments of the present invention, Figure 1 is a front view of the stacker crane, Figure 2 is a side view of the same as above, Figure 3 is a front view of the fork telescopic device, and Figure 4 is a front view of the stacker crane. Figure 5 is a side view of the goods stored in the warehouse; Figure 6 is a front view of the same as above; Figure 7 is a plan view of the main parts of the multi-story warehouse; Figure 8 is the arrangement of the stored goods. FIGS. 9 and 10 are plan views of main parts of a conventional three-dimensional warehouse. 3...Clen Isle, 4...Rail, 5...Stakkarun, 6...Clenmast, 7...Renobe...Circulation trolley, 10...Carriage, 11...
... Fork support arm, 12 ... Fork extension device, 1
3... Telescopic fork, 14... Motor, 15...
Article, 16... Column, 17... Support beam. Patent applicant: Kawasaki Heavy Industries, Ltd. Figure 8 Figure 7 Figure 10

Claims (1)

[Claims] In a stacker crane having a carriage that moves up and down on a crane aisle between storage shelves that are set up opposite each other, a fork support arm that projects from an end of the stacker crane on the warehouse entrance/exit side is provided on the carriage, and A stacker crane characterized in that a fork extension device is rotatably pivoted to a fork support arm.