JP3136466B2 - Stacker crane type automatic warehouse - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stacker crane type three-dimensional automatic warehouse capable of storing a pallet load having a normal height and a pallet load having a shorter height.

[0002]

2. Description of the Related Art Conventionally, three-dimensional warehouse shelves for storing palletized loads are provided with a fixed loading tray 4 as shown in FIGS.
Is set to a size that can accommodate a pallet load 1 having a normal height.
Is stored in a fork device (not shown) of the lifting platform 30 of the stacker crane 3 occupies one shelf.

[0003] Therefore, although the use rate of each shelf is high, the space use rate is very poor, and the operation efficiency as a three-dimensional warehouse shelf is poor. On the other hand, as shown in FIG. 9 and FIG. 10, a zone Z provided with a fixed loading table 4 for exclusively storing a pallet load 1 having a normal height, and a pallet load 2 shorter than the zone Z are exclusively stored. By providing the zone W provided with the fixed-type receiving tray 4 ', it is possible to improve the space utilization rate.

However, since the quantity ratio between the tall pallet load 1 and the short pallet load 2 always fluctuates, the number of the tall pallet loads 1 is fixed to the value set for the tall pallet load. When it becomes more than the number of installed
While the shelf shortage has occurred, the fixed type cargo handling table 4 'for short pallet cargoes may be vacant, and conversely, the number of short pallet cargoes 2 may be reduced for short pallet cargoes. When the number of the fixed cargo handling tables 4 'exceeds the set number, the fixed cargo handling table 4 provided for the tall pallet cargo has to be used for storing the short pallet cargo 2, as in the previous example. There is a risk of inefficient use.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and an object of the present invention is to store a tall pallet load and a short pallet load. Even in such a case, it is an object of the present invention to provide a stacker crane type three-dimensional automatic warehouse capable of satisfying both the pallet load storage efficiency and the space utilization rate.

[0006]

That is, a stacker crane type three-dimensional automatic warehouse according to the present invention has a normal height.
One pallet load and a shorter second pallet load
The fork device installed on the lift of the stacker crane
Stacker crane type 3D warehouse
In an automatic warehouse, the three-dimensional warehouse rack is
A fixed loading cradle for mounting, located between the fixed loading cradle
To the vertical beam on the shelf, and
Can be rotated to a nearly vertical flip-up position that does not interfere with the load
Second pallet consists of a load movable receiving platform for mounting a front
The stacker crane moves the movable receiving platform horizontally.
To a nearly vertical flip-up position that does not interfere with the pallet load
Features kick plate mechanism to rotate
And

[0007] Here, the on stationary receiving platform of the intermediate
It is desirable to disposed one or more stages the movable receiving platform.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, a case where only one stage of a movable receiving tray is provided in the middle of a fixed receiving tray is taken as an example. As shown in FIG. 5 and FIG. 6, this three-dimensional warehouse has a three-dimensional warehouse shelf 6 having a plurality of fixed receiving trays 4 and a movable receiving tray 5 provided only one stage between the fixed receiving trays 4.
And a stacker crane 7.

As shown in FIG. 4, one end of the movable receiving tray 5 is supported by a vertical beam 60 of a three-dimensional warehouse shelf 6 by a pin 8, and is close to a horizontal position indicated by a solid line and a vertical position indicated by a two-dot broken line. As shown by a two-direction arrow R, the space between the positions is raised and lowered. The elevator 9 of the stacker crane 7
As shown in FIG. 2, a fork device 10 for taking in and out a tall pallet load 1 and a short pallet load 2, and a kick plate 11 capable of flipping up a movable load receiving table 5, Kick plate drive cylinder 1
2 is provided.

As shown in FIG. 3, a total of four kick plate mechanisms 110 are provided on the elevating platform 9, two on each side. 2, the stacker crane 7 has a hoisting wire rope 15 that raises and lowers the elevator 9 along a stacker crane mast 13 via a rope sheave 14. As shown in FIG. Next, loading and unloading of pallet loads by the stacker crane will be described.

Tall pallet load 1 with normal height
Is stored in the three-dimensional warehouse shelf 6, the stacker crane 7
When the lifting platform 9 reaches the position of the fixed type loading platform 4, the pair of kick plates 11 on the side to be stored are moved from the position shown by the two-dot broken line to the position shown by the solid line as shown by the arrow a in FIG. Rotate. Then, the movable load receiving table 5 at that position rotates to a position where the incoming pallet load 1 does not interfere, as shown by the arrow b in FIG. Needless to say, the movable receiving tray 5 on the right side can be flipped up similarly to the movable receiving tray 5 on the left side. In this state, the fork device 10 is inserted into the three-dimensional warehouse shelf 6, and the pallet load 1 is stored on the fixed receiving tray 4.

After the fork device 10 is returned onto the elevating platform 9 and the kick plate 11 is returned as shown by the arrow a ', the movable loading platform 5 is moved to the pallet as shown by reference numeral a in FIG. It rests on the side of the load 1 and is held by the pallet load 1. On the other hand, when taking out the pallet load 1 from the fixed receiving tray 4, the movable loading tray 5 is flipped up by the kick plate 11 and separated from the pallet load 1, and then the pallet load 1 on the fixed receiving tray 4 is forked by the fork device 10. Is transported onto the elevator 9 of the stacker crane 7.
Thereafter, when the kick plate 11 is returned as shown by the arrow a ', the fixed load receiving table 4 returns to the horizontal position as shown by the arrow b' by its own weight (see FIG. 1).

Next, when storing the pallet load 2 which is short, the lifting platform 9 of the stacker crane 7 is moved to the movable loading platform 5.
After stopping at the position, the fork device 10 is extended to store the pallet load 2 on the movable load receiving table 5. In addition, the storage of the short pallet load 2 is also performed by the fork device 10. In the above description, the case where only one stage of the movable receiving tray is provided in the middle of the fixed receiving tray has been described.
Not limited to this, one movable loading platform is located between the fixed loading platforms.
It goes without saying that more than one step may be provided.

Also, the case has been described in which the movable loading table is rotated between a horizontal pallet load support position and a flip-up position which does not interfere with the pallet load. However, the present invention is not limited to this.
You may make it rotate between the pallet load support position and the hanging position which does not interfere with a pallet load. Further, the movable loading table may be slid laterally between a horizontal pallet load supporting position and a position not interfering with the pallet load.

[0015]

As described above, according to the present invention, a plurality of fixed receiving trays, a position between the fixed receiving trays, and a position for supporting the pallet load and a position not interfering with the pallet load are displaced. A three-dimensional warehouse shelf with a freely movable receiving tray, and
A stacker crane equipped with a fork device capable of loading and unloading pallet loads to and from these loading trays, and a kick plate mechanism that displaces the movable loading tray to a position that supports the pallet loads and a position that does not interfere with the pallet loads. Therefore, when storing tall pallet loads and short pallet loads, it is possible to satisfy both the pallet load storage efficiency and the space utilization rate. It has become possible to dramatically improve the operational efficiency of

The present invention also has an advantage that it can be easily modified by attaching a movable receiving table to an existing three-dimensional warehouse shelf. In addition, the present invention can be widely used as a wholesaler or manufacturer that stores pallet loads of different heights, or a warehouse such as a supermarket.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of a stacker type three-dimensional automatic warehouse according to the present invention.

FIG. 2 is a side view of a main part of a stacker type three-dimensional automatic warehouse according to the present invention.

FIG. 3 is a sectional view taken along the line EE of FIG. 2;

FIG. 4 is a perspective view of a movable receiving table.

FIG. 5 is a front view of a stacker type three-dimensional automatic warehouse according to the present invention.

FIG. 6 is a side view of the stacker type automatic warehouse according to the present invention.

FIG. 7 is a front view of a conventional stacker-type three-dimensional automatic warehouse.

FIG. 8 is a side view of a conventional stacker-type three-dimensional automatic warehouse.

FIG. 9 is a front view of a conventional stacker-type three-dimensional automatic warehouse.

FIG. 10 is a side view of a conventional stacker type three-dimensional automatic warehouse.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Pallet load 4 Fixed-type receiving tray 5 Movable receiving tray 6 Multi-level warehouse shelf 7 Stacker crane 9 Lifting platform 10 Fork device 110 Kick plate mechanism

Continuation of the front page (56) References JP-A-63-180613 (JP, A) JP-A-62-121109 (JP, A) JP-A-4-350010 (JP, A) JP-A-52-105634 (JP) , A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B65G 1/00-1/20 B66F 9/07

Claims (2)

(57) [Claims] 1. A first pallet load having a normal height
And a second pallet load shorter than that
A three-dimensional warehouse using a fork device installed on the elevator of the lane
A stacker crane type automatic warehouse that moves in and out of shelves
And the three-dimensional warehouse rack is a fixed receiving container for loading the first pallet.
Table and a vertical beam on the shelf located between the fixed receiving table.
Pivoted and does not interfere with pallet load from horizontal position
A second pallet load that can be rotated to a nearly vertical flip-up position
And a movable receiving platform for loading, wherein the stacker crane moves the movable receiving platform horizontally.
Almost vertical lifting position that does not interfere with the pallet load
Specially equipped with a kick plate mechanism
Stacker crane multistory automatic warehouse to symptoms. 2. A three-dimensional automatic warehouse according to claim 1, wherein said movable receiving tray is arranged at one or more stages between said fixed receiving trays.