JP2001261130A - Load storage shelf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an occupying area, to eliminate generation of an unnecessary space, and to reduce production cost. SOLUTION: This load storage shelf is formed with picking sections 4 in a lower part of a shelf body 1 having a large number of load storage sections 1a and is provided with drawer type reception bases 8 each capable of projecting to a lateral direction of the shelf body 1 from the picking section 4. A load is placed on the reception base 8. The load storage shelf is provided with load stock sensors 20 each for detecting the placed load, and indicator lights 21 each for displaying that the load is detected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a luggage storage rack which can be used for picking work, for example, in an automatic warehouse for loading and unloading luggage by a stacker crane or a bucket type crane. About.

[0002]

2. Description of the Related Art FIG. 5 shows an example of a conventional luggage storage shelf used in an automatic warehouse. It has a pair of shelf bodies 1 and 2 arranged side by side at a predetermined interval, and each of the shelf bodies 1 and 2 has a large number of luggage storage areas 1a and 1g for storing luggage A via a tray 3. 2a is formed, a picking area 4 is provided at the lower part of one of the shelf bodies 1, a roller conveyor 5 is provided in the picking area 4 as a load carrying-in / out means, and the tip of the roller conveyor 5 is a shelf. A stacker crane 6 extends laterally from the main body 1 and is movable between the two main bodies 1 and 2.

In the above configuration, when carrying out the luggage A by the picking operation, the stacker crane 6 is moved, and at the same time, the carriage 6a is raised and lowered, and the slide fork of the carriage 6a is used to move the luggage A into the predetermined luggage storage areas 1a, 2a. And picks up the load A on the roller conveyor 5 in the picking area 4 (see the solid line in FIG. 5). Next, the roller conveyor 5 is driven to move the load A to the side of the shelf body 1 (see the phantom line in FIG. 5),
The baggage A may be manually transferred from the end of the roller conveyor 5. When carrying in the luggage A by the picking operation, the procedure may be reversed.

[0004]

In the above-mentioned conventional configuration,
Since the leading end of the roller conveyor 5 extends to the side of the shelf body 1 by an interval H approximately equal to the width of the baggage A, the occupied area increases, and when the roller conveyor 5 is not used, the extra length is wasted. Space is created. Further, since the expensive roller conveyor 5 is used, the production cost is high.

The present invention has been made in view of the above-mentioned conventional drawbacks, and has as its object to provide a luggage storage rack which has a small occupied area and does not cause useless space, thereby reducing manufacturing costs.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a picking area is provided at a lower portion of a shelf body having a plurality of luggage storage areas, and the picking area is provided in the picking area. In the luggage storage shelf in which the picking operation is performed by the luggage carrying-in / out means, the luggage carrying-in / out means is constituted by a drawer-type cradle that can protrude from the picking area to the side of the shelf body.

According to the above configuration, the drawer-type cradle is pushed into the picking area except when the load is carried in and out by the picking operation. It is possible to prevent useless space from being generated. Further, since the structure of the receiving table is simple, the manufacturing cost can be reduced.

According to a second aspect of the present invention, in the first aspect of the present invention, there is provided a load sensor for detecting that a load is placed on the pull-out cradle in the picking area. It is characterized by having.

[0009] According to the above configuration, the loading sensor detects that the luggage is placed on the pull-out cradle in the picking area, so that the luggage can be efficiently unloaded based on the detection. Can do well.

A third aspect of the present invention is characterized in that, in the second aspect of the present invention, an indicator light for displaying that the baggage is detected by the presence sensor is provided.

[0011] According to the above configuration, it is possible to easily confirm whether or not a load is placed on the receiving tray in the picking area simply by looking at the indicator light.

The invention according to claim 4 is the invention according to claim 2 or 3.
In the invention described in the above, an indicator for displaying picking content based on the detection of the package by the presence sensor is provided.

According to the above configuration, since the picking contents such as the luggage code and the number of picking are displayed on the display, the picking operation can be performed efficiently by watching the display.

According to a fifth aspect of the present invention, in the invention of any one of the first to fourth aspects, a cradle detection for detecting that the drawer-type cradle has been pulled out of the picking area to the side of the shelf body. A vessel is provided.

According to the above configuration, by interlocking based on the detection by the cradle detector, it is possible to prevent an accidental removal of the luggage to the picking area with the drawer cradle pulled out. .

[0016]

FIG. 1 shows an automatic warehouse provided with a luggage storage shelf according to one embodiment of the present invention, and a drawer which can protrude from a picking area 4 to the side of the shelf body 1. A type receiving stand (luggage carry-in / out means) 8 is provided, and an operation unit 9 is provided on the outer surface of the shelf body 1 above the picking area 4. In the configuration other than the above, the same parts as those of the conventional example shown in FIG.

The receiving table 8 is, as shown in FIGS.
A steel plate receiving body 8A having a slide fork gap 11 formed at the center thereof has a side plate portion 8a formed by raising left and right side edges of the receiving body 8A, and a rear side of the receiving body 8A is formed. The rear plate portion 8b is formed by raising the edge, the front plate portion 8c is fixed to the front edge portion of the cradle main body 8A, and the upper edge of the front plate portion 8c is bent forward in a substantially U-shape to be gripped. The three guide members 14a to 14 are formed so as to movably fit each other between the angle member 13 fixed to both side edges of the lower surface of the receiving main body 8A and the shelf main bodies 1 and 2.
c, a pair of left and right telescopic linear guides 14 is interposed.

According to the above configuration, the receiving stand 8 is pulled out to the side of the shelf body 1 when carrying in / out the load A by the picking operation (see phantom lines in FIGS. 1 and 2). In other cases, the cradle 8 is pushed into the picking area 4, so that the occupied area can be reduced as compared with the related art so that no useless space is generated. Further, since the receiving table 8 is manually pushed and pulled, and the configuration is simple, the manufacturing cost can be reduced.

As shown in FIG. 3, the operation section 9 has a display 16 for displaying the picking contents such as the baggage code and the number of pickings of the baggage A to be carried in and out by the picking work. A completion button 17 for notifying completion and a cancel button 18 are provided.

As shown in FIG. 3, the optical presence sensor 2
The opposing light projecting unit 20a and light receiving unit 20b are disposed on both side surfaces in the picking area 4, and the load A is placed on the receiving table 8 in the picking area 4 via the tray 3. Then, the light beam projected from the light projecting unit 20a toward the light receiving unit 20b is blocked by the tray 3, the picking content is displayed on the display 16 based on the cutoff signal, and the indicator light provided in the completion button 17 is provided. Make 21 blink
The fact that the load A is placed on the receiving stand 8 is displayed, and the carry-out of the load A by the picking operation can be performed efficiently.

As shown in FIG. 2, a cradle detector 22 comprising a microswitch for detecting that the cradle 8 has been pulled out of the picking area 4 to the side of the shelf body 1 is provided. By interlocking based on the detection by the stand detector 22, it is possible to prevent an accident in which the stacker crane 6 erroneously carries out the load A to the picking area 4 in a state where the receiving stand 8 is pulled out (see the phantom line in FIG. 2). be able to.

In the above configuration, when carrying out the luggage A by the picking operation, the stacker crane 6 is moved, and at the same time, the carriage 6a is moved up and down, and the slide fork of the carriage 6a is used to move the luggage A into the predetermined luggage storage areas 1a, 2a. The package A is received, the package A is placed on the receiving table 8 in the picking area 4 via the tray 3 (see the solid line in FIGS. 1 and 2), and the detection signal of the presence sensor 20 for detecting the package A is detected. The picking content is displayed on the display 16 on the basis of the above, and the indicator light 21 blinks, and the worker who visually confirms the blinking holds the handle 12 and moves the receiving tray 8 to the side of the shelf body 1. Drawer (see phantom lines in FIGS. 1 and 2), manually transfer luggage A from cradle 8,
During the transfer, an interlock is applied based on the detection signal of the cradle detector 22 so that the stacker crane 6 prevents the load A from being erroneously carried into the picking area 4. After the picking operation is completed, the pedestal 8 is pushed into the picking area 4, and the interlock is released based on the detection signal of the pedestal detector 22 for detecting the pedestal.

When carrying the luggage A by the picking operation, the luggage A is manually placed on the receiving stand 8 pulled out to the side of the shelf body 1 via the tray 3 and then picked up. By pushing the stacker crane 6 into the storage area 4 and pressing the completion button 17, the stacker crane 6 is operated, and the luggage A is stored in the predetermined luggage storage areas 1a and 2a in the reverse procedure.

In the above embodiment, an optical detector including a light projecting portion 20a and a light receiving portion 20b is used as the presence sensor 20, and a micro switch that contacts the lower surface of the pedestal 8 is used as the pedestal detector 22. Although used, it is not limited to this, and various detectors may be used.

The completion button 1 for completing the loading operation of the package A
7, but the completion button 17 is omitted,
Push the cradle 8 into the picking area 4 and
When the tip of the cradle contacts the cradle detector 22, the completion of the loading operation may be notified based on the detection signal output from the cradle detector 22.

[0026]

According to the first aspect of the present invention, the pull-out cradle is pushed into the picking area except when the load is carried in and out by picking work.
The occupied area can be reduced as compared with the related art, so that useless space does not occur. Further, since the structure of the receiving table is simple, the manufacturing cost can be reduced.

According to the second aspect of the present invention, since the loading sensor detects that the load is placed on the drawer-type cradle in the picking area, the load is detected based on the detection. Can be efficiently carried out.

According to the third aspect of the present invention, it is possible to easily confirm whether or not a load is placed on the cradle in the picking area simply by looking at the indicator light.

According to the invention described in claim 4, since the picking contents such as the luggage code and the number of picking are displayed on the display, the picking operation can be performed efficiently by watching the display.

According to the fifth aspect of the present invention, by interlocking based on the detection by the cradle detector, it is possible to prevent an accidental removal of the luggage to the picking area with the drawer cradle pulled out. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a side view showing an automatic warehouse provided with a luggage storage shelf according to an embodiment of the present invention.

FIG. 2 is an enlarged vertical sectional view of the main part.

FIG. 3 is an enlarged front view of the main part.

FIG. 4 is a perspective view of the drawer type cradle.

FIG. 5 is a side view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shelf main body 1a Luggage storage area 3 Tray 4 Picking area 8 Pull-out cradle (luggage loading / unloading means) 16 Indicator 20 In-cargo sensor 21 Indicator light 22 Receipt detector A

Claims (5)

[Claims] 1. A luggage storage rack, wherein a picking area is provided at a lower portion of a shelf body having a large number of luggage storage areas, and a picking operation is performed by luggage loading / unloading means provided in the picking area. A luggage storage shelf, wherein the loading / unloading means comprises a drawer-type cradle that can project from a picking area to a side of the shelf body. 2. The luggage storage rack according to claim 1, further comprising a load sensor for detecting that a load is placed on the drawer-type cradle in the picking area. . 3. The luggage storage shelf according to claim 2, further comprising an indicator light for displaying that the luggage is detected by the presence sensor. 4. The luggage storage rack according to claim 2, further comprising an indicator for displaying picking contents based on the detection of the luggage by the presence sensor. 5. A cradle detector for detecting that the drawer cradle has been pulled out of the picking area to the side of the shelf body is provided. Luggage storage shelf as described.