JPS6210881B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for transporting loads between a shelf having a plurality of compartment storage spaces vertically and horizontally, and a transport device that can travel within a passage formed on the side of the shelf. The invention relates to automatic warehouse equipment where warehouses are stocked.

Conventionally, loading and unloading of such loads has been carried out using a load receiving stand provided on the transport device side that can be raised and lowered and moved in and out laterally. However, depending on the state of receiving the cargo at the cargo handling area, the state of carrying the cargo onto the shelf, etc., the position at which the cargo is carried into each compartment storage space in the depth direction is not constant. In this case, if the load goes too deep, there is not much of a problem, but if the load is brought in with the load protruding toward the front, the transport device may collide with the protruding front end of the load when the transport device runs afterwards. This could lead to damage to the load or a dangerous situation.

The present invention has a shelf having a plurality of compartment storage spaces in the vertical and horizontal directions, and a transport device that can run within a passage formed on the side of the shelf, and each of the compartment storage spaces has a pair of left and right compartments. A cargo receiving surface is formed, and the transport device is provided with a loading platform that can be raised and lowered, and the loading platform is provided with a loading platform that can move toward and away from the shelf, and an incoming cargo detection device is provided at an end of the loading platform. , this detection device proposes an automatic warehouse facility configured to perform a detection operation when the cargo receiving platform is spaced a certain distance from the shelf. According to this configuration, after carrying the cargo to the shelf, When the load receiving tray is separated, the detection device provided on the load receiving tray can detect whether or not the loaded load protrudes by a predetermined amount or more.

Hereinafter, one embodiment of the present invention will be described based on the drawings. In FIGS. 1 and 5, reference numeral 1 denotes a shelf, on which a plurality of divided storage spaces 2 are formed vertically and horizontally, and are further arranged side by side with passages 3 placed therebetween. In each compartment storage space 2, one idling roller group 4 is disposed on each left and right side, and these idling roller groups 4 form a load receiving surface 5. Reference numeral 6 denotes a transport device (loading/unloading device) disposed within the passageway 3, which is configured to be able to reciprocate on a fixed path 7 along the shelf 1. Reference numeral 8 denotes a loading platform provided on the transport device 6 that can be raised and lowered, and a loading platform 9 that can be moved toward and away from the shelf 1 is provided on the upper part of the loading platform. Reference numeral 10 denotes a group of drive rollers provided on each of the right and left sides of the load receiving table 9, which are connected to a drive source (not shown), and these drive roller groups 10 form a load supporting surface 11. 12 is a limit switch provided between the end drive roller 10a and the drive roller 10b one position before this;
The drive source (not shown) for the drive roller group 10 is activated by the opening operation while the load 13 is being sent out.
to stop. The approaching movement of the cargo receiving platform 9 is as follows:
The end drive roller 10a of the drive roller group 10 is configured to stop at the position where it enters the entrance end of the divided storage space 2. Reference numeral 14 denotes an incoming cargo detection device provided at the end of the cargo receiving platform 9, and is configured to perform a detection operation when the cargo receiving platform 9 is separated from the shelf 1 by a certain distance. This certain distance is set at a position slightly closer to the shelf 1 than the normal operation (traveling) range of the transport device 6, and the distance detection is performed based on, for example, the amount of movement of the loading platform 9 with respect to the loading platform 8. Furthermore, an abnormality display is displayed on the control section of the transport device 6 based on the detection signal.

The solid line in FIGS. 1 and 9 indicates the load 13 on the load support surface 11.
The figure shows the state immediately before the product is carried out onto the receiving surface 5.
That is, the load receiving platform 9 supporting the load 13 on its load supporting surface 11 is located at the center of the conveying device 6, and the rotation of the drive roller group 10 is stopped. Furthermore, by raising and lowering the loading platform 8, the level of the load supporting surface 11 is adjusted to the load receiving surface 5 of the divided storage space 2 from which the load 13 is to be carried out (that is, to be stored on the load receiving surface). In this state, first move the load receiving platform 9 toward the shelf 1, bring the end drive roller 10a close to the end idle roller 4a and enter the entrance end of the divided storage space 2, and then move the drive roller group 10. Drive and rotate in the feeding direction. Then, the load 13 is moved onto the load support surface 11 by the drive roller group 10, as shown in FIG.
from there to the receiving surface 5. As shown in FIG. 3, when the end bottom surface 13a of the load 13 reaches the end drive roller 10a, the limit switch 12 disposed above it opens and stops the drive rotation of the drive roller group 10. let Next, the loading platform 8 is lowered and the loading platform 9 is retracted. At the time of retraction, when the load receiving platform 9 is separated from the shelf 1 by a certain distance as shown in FIGS. 4 and 5, the detection device 14 is operated to detect whether or not the load 13 is protruding. As shown by the solid line in FIGS. 4 and 5, when the load 13 is stored normally, no detection occurs, and as shown by the imaginary line in FIGS. 4 and 5, the load 13 is not detected.
3 protrudes beyond a predetermined amount, an abnormality is detected. After performing this detection operation, the cargo receiving platform 9 is moved back and forth as shown by the solid line in FIG. 6, thereby completing the work of carrying out the cargo 13. If the above-mentioned detection is not detected, the transporting device 6 is operated as set, and if an abnormality is detected, the operation is stopped, and then the work of pushing the protruding load 13 to the normal position is performed. To carry in the cargo 13 (that is, to take it out from the cargo receiving surface), first, as shown by the solid line in FIG. After that, the load receiving table 9 is projected and the end driving roller 10a is moved to the end bottom surface 1 of the load 13 as shown in the imaginary line.
3a and within the entrance end of the compartment storage space 2. Next, the loading platform 8 is raised, and the end drive roller 10a is pressed against the bottom end surface 13a of the load 13 on the load receiving surface 5 so as to lift the load 13, as shown in FIG. In this state, the drive roller group 10 is driven and rotated in the retraction direction. Then, the load 13 is pulled out from the load receiving surface 5 onto the load supporting surface 11 by the drive rotational force of the end drive roller 10a, and then receives the rotational force of the drive roller group 10, as shown in FIG. It is pulled out onto the cargo tray 9. After stopping the rotation of this drive roller group 10, the load receiving table 9 is moved back and forth, thereby allowing the load 13 to be removed.
The loading work has been completed, and the system is now as shown in Figure 1.

In addition, in the embodiment, the loading platform 9 is the left and right shelf 1.
Both end drive rollers 10
A limit switch 12 is disposed near each of the shelves 1 and 1, and the drive source is stopped by opening the limit switch 12 near the shelf 1 on which the load 13 is sent out. Further, in the embodiment, a type having a driving roller 10 is shown as the cargo receiving table 9, but this may be a fork type which fully extends into the shelf 1.

According to the present invention having the above configuration, when the cargo receiving platform that carries the cargo to the shelf is separated from the shelf by a certain distance, the detection device provided on the cargo receiving platform determines whether or not the carried cargo protrudes by a predetermined amount. As a result, it is possible to prevent the transport device from colliding with the load, thereby avoiding damage to the load and dangerous situations.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIGS.
5 is a front view of FIG. 4, FIGS. 6 to 8 are front views of loading cargo, and FIG. 9 is a plan view of FIG. 1. 1...shelf, 2...compartment storage space, 3...aisle,
4... Idle roller group, 5... Load receiving surface, 6... Transport device, 8... Loading platform, 9... Load receiving platform, 10...
Drive roller group, 10a... end drive roller, 11
...Load supporting surface, 13...Load, 14...Detection device.

Claims (1)

[Claims] 1 A shelf having a plurality of compartment storage spaces in the vertical and horizontal directions, and a transport device that can run within a passage formed on the side of the shelf, and each compartment storage space has a pair of left and right cargo receiving surfaces. the transport device is provided with a loading platform that can be raised and lowered, and the loading platform is provided with a loading platform that is movable towards and away from the shelf;
A detection device for incoming cargo is installed at the end of this cargo receiving platform,
The automatic warehouse equipment is characterized in that the detection device is configured to perform a detection operation when the receiving platform is separated from the shelf by a certain distance.