JP2000191109A - Multistory warehouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multistory warehouse capable of miniaturizing a device and simplifying the operation. SOLUTION: In a storage shelf, two rows of a forward row shelf group and a rear row shelf group parallel to a route are provided on the same level on at least one side of a traveling route of a traveling body, a slide form 9 is provided with an advancing/ retractable auxiliary arm 10 on an elevating/ lowering body 8 and a fork body 11 movable in the same direction on the auxiliary arm in a vertically stacked condition, the fork body 11 is provided with a locking piece on an end part, the fork body 11 is advanced immediately below a tray 4A of the forward row shelf group, loads the tray and is retracted to the position on the elevating/lowering body 8. As for a tray 4B of the rear row shelf group, the locking piece of the fork body 11 is advanced immediately below the locked piece of the tray 4B, and after the locking piece is engaged with the locked piece, the fork body is retracted until the tray 4B is pulled to the position of the forward row shelf group.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional warehouse.

[0002]

2. Description of the Related Art For the purpose of high-density storage, there is known a three-dimensional warehouse in which storage shelves are composed of a front shelf group and a back shelf group. One example of this is disclosed in JP-A-56-56402. This known device is parallel to a traveling lane 52 for traveling of a stacker crane supporting an elevating body 51, as can be seen in FIGS. Front row shelves 53
And a row shelf group 54 are arranged. Both the front row shelf group 53 and the rear row shelf group 54 have a plurality of storage shelves divided in the direction of the traveling lane 52. In FIG. 4A, one tray T1 is provided in the front shelf group 53, and two trays T are provided in the back shelf group 54.
2 and T3 are stored.

In the elevating body 51, a single reach fork 55 and a double reach fork 56 are installed at positions separated by a distance corresponding to one pitch of the storage shelf. The single reach fork 55 is provided with a detector 57 for detecting the tray T1.

As shown in FIG. 4A, when the detector 57 confirms the existence of the tray T1 in the front row group 53, the single reach fork 55 is moved forward and the tray T1 is taken out by scooping.

Next, the front shelf group 5 is detected by the detector 57.
When the existence of a tray is not confirmed in FIG.
The stacker crane is moved on the traveling lane 52 as described above, and the double reach fork 56 of the elevating body 51 is brought to a position where the detector 57 makes the tray in the front row group 53 no tray exist. 56 moves forward and takes out the tray T2 of the back shelf group 54 in a scooping manner as in the above and the example T1.

[0006]

However, the known device shown in FIG. 4 has disadvantages such as an increase in the size of the elevating body and a complicated operation of the elevating body.

That is, two elevating forks, a single reach fork and a double reach fork, are arranged at intervals in the direction of the traveling lane, and the interval is set equal to the distance between two adjacent storage shelves. Therefore, the elevating body becomes long in the above-mentioned direction, and furthermore, it must be moved by the above-mentioned distance when the fork is selected. For this reason, such a three-dimensional warehouse having two rows of shelves is generally equipped with only a double-reach fork so that the front and rear rows of shelves can be used in both cases. However, since it is necessary to have the strength to support the maximum load of the rear row group, it becomes a multi-stage fork and becomes large. As described above, there is a problem that the elevating body is enlarged and the operation thereof is complicated.

An object of the present invention is to provide a three-dimensional warehouse capable of improving the above-mentioned points and reducing the size of the apparatus and simplifying the operation.

[0009]

In the three-dimensional warehouse according to the present invention, a mast is provided upright on a traveling body which can travel on a floor surface in a predetermined direction and stops at a predetermined position, and the mast is attached to the mast. The lifting and lowering body which is guided to be able to move up and down and is stopped at a predetermined height position is supported, and the lifting and lowering body supports a slide fork which can move forward and backward in the horizontal direction, and the tray for the designated storage shelf is supported by the slide fork. Move in and out.

In the three-dimensional warehouse, according to the present invention, the storage shelves are provided on at least one side of the traveling path of the traveling body, and two rows of the front row shelves and the back row shelves parallel to the path are at the same height level. The slide fork is provided on an elevating body and has an auxiliary arm movable forward and backward and a fork body movable in the same direction on the auxiliary arm, and the fork body is locked at an end. The fork body moves forward to immediately below the trays of the front row shelves, mounts the fork body, and retreats to a position on the elevating body. The stopper is advanced to a position immediately below the locked member of the load, and is retracted so that the tray is pulled out to the position of the front row group after the locking member engages with the locked member.

[0011] In the present invention having such a configuration, the storage of the tray with respect to the storage shelf is performed by a fork body of a slide fork. That is, the fork body moves forward to just below the tray to handle the tray.

When the tray is unloaded, when the tray is in the front row of shelves, the fork body moves forward together with the auxiliary arm from the elevating body position, and scoops the tray as described above. The lifting of the fork for scooping is performed as a lifting operation of the lifting body.

Next, when the tray is located in the back row group, the auxiliary arm moves forward as well as the front row group, and the fork body also moves forward with respect to the auxiliary arm. Then, the locking tool of the fork body that has moved forward reaches the position of the locked tool on the tray. The locking device engages with the locked device by the elevating operation of the elevating body. After a while
The fork body retracts with the auxiliary arm, and pulls out the tray to the position of the front row of empty shelves. afterwards,
The same operation as the removal of the tray from the front row group is performed.

When the tray enters the storage shelf, the reverse operation is performed.

In the present invention, at least the front row shelf of the front row shelf and the depth row shelf is provided such that two rails extending in the moving direction of the fork support the side bottom edge of the tray. Preferably, the body is capable of moving forward and backward between the two rail bodies. This allows the fork body to easily enter the position directly below the tray.

It is preferable that the locking member and the locked member are engaged in the front-rear direction by raising or lowering the elevating body by a predetermined amount. For example, the hook is hook-shaped,
The locked member can be a handle. This not only simplifies the structure, but also facilitates engagement and disengagement by simple operations.

Preferably, the locked members are provided at the front end and the rear end of the tray. In this case, when the tray is stored, the front and rear directions can be freely selected.

[0018] Further, the fork body is provided with a locking member at a front end and a rear end, and the storage shelf having a front row shelf group and a back row shelf group,
It is desirable to be provided on both sides of the traveling route of the traveling body. In this way, the same slide fork allows the trays to be moved in and out of the front and rear shelves on both sides, that is, the storage shelves in a total of four rows.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 to FIG.
An embodiment of the present invention will be described based on the above.

In the three-dimensional warehouse of this embodiment, storage shelves are provided in upper and lower tiers, and each tier has, as shown in FIG. The front shelf group 1 and the back shelf group 2 are formed by arranging a large number of storage shelves in groups.

A pair of rails 3 are arranged in the storage shelves of the front row group 1 and the back row group 2 that correspond to each other. The rails 3 are located on both side edges of the storage shelf 3, and the middle is a space. The rail 3 supports the tray 4 at the bottom edge of the side of the tray 4 so as to be slidable back and forth along the rail 3.

The tray 4 has a box shape, and a handle 5 as a locked portion is attached to a front surface and a rear surface thereof.

Beside the front row shelf group 1, the front row shelf group 1
A mast 7 that stands vertically from a traveling body 6 that moves along is located. An elevating body 8 is supported by the mast 7 so as to be able to move up and down. The traveling body 6 can travel in the direction A along the front row shelf group 1 as shown in FIG. 1 and can be stopped at a position that brings the lifting body 8 to a position corresponding to an arbitrary designated storage shelf. . The elevating body 8 can be moved up and down by a predetermined amount, and can be stopped at the height of the designated storage shelf at an arbitrary level.

A slide fork 9 for moving the tray 4 into and out of the storage shelf is provided on the elevating body 8. The slide fork 9 has an auxiliary arm 10 that moves forward and backward on the elevating body 8 toward the storage shelf, and a fork body 11 that moves forward and backward on the auxiliary arm 10. On the front end face and the rear end face of the fork body 11, an upward L-shaped hook body 12 is provided as a locking tool.

Next, the operation of the apparatus of this embodiment will be described with reference to FIGS. [A] Removal of tray from front row group As shown in FIG. 2 (A), when tray 4A exists in the selected front row group and tray 4B exists in the back row group, and tray 4A is to be taken out. First, the elevating body 8 moves up and down to bring the slide fork 9 to the height position of the selected front row group. Specifically, this position is a position where the fork body 11 of the slide fork 9 is almost at the same height as the rail body 3.

Next, the auxiliary arm 10 and the fork body 1
2 moves forward as shown in the state (B) of FIG. 2, and the fork body 11 comes to a position immediately below the tray 4A between the pair of rail bodies 3, that is, a position close to the bottom surface of the tray 4A.

Thereafter, the elevating body 8 rises by a predetermined amount (slight height), and the fork body 11 raises the tray 4A (see the arrow 13 in the state (B) of FIG. 2) and retreats as it is (arrow). 14).

Thus, the tray 4A is brought to the position of the elevating body 8 (see the state (C) of FIG. 2), and can be carried out by the movement of the traveling body 6. [B] Removal of Tray from Row Shelf Group The removal of the tray 4B from the row shelf group is performed after the tray 4A on the front row group is carried out by [A].
First, the elevating body 8 moves up and down so that the slide fork 9 comes to the height position of the storage shelf (state (A) in FIG. 3). At that time, the fork body 11 may be located above or below the level of the rail body 3.

Auxiliary arm 10 of slide fork 9
Then, the fork body 11 moves forward. The fork body 11 moves forward to a position where the hook body 12 is below the handle 5 of the tray 4B (the state (B) in FIG. 3, arrow 15).

Thereafter, the elevating body 8 is raised by a predetermined amount (slight height) (arrow 16 in the state (B) of FIG. 3).
The hook 12 of the fork body 11 is engaged with the handle 5 of the tray 4B (see the state (C) of FIG. 3).

Next, the fork body 11 is
Retreat with 0 (see arrow 17 in the state of FIG. 3),
The tray 4B is pulled out to the position of the front row shelf group (see the state (D) in FIG. 3). Thereafter, the elevating body 8 descends by a predetermined amount (see the arrow 18 in the state (D) of FIG. 3), and the hook 1
The engagement between the handle 2 and the handle 5 is released.

Thus, the tray 4 B is in the state shown in FIG.
It comes to the same position as (A). Then, slide fork 9
Performs the same operation as the states (A) to (C) of FIG. 2 and brings the tray 4B onto the elevating body 8 (the states (E) and
(F)). [C] Entry of trays into storage shelves Entry of trays into the front row shelves is the reverse of the operation of [A], and entry into the back row shelves takes place without trays in the storage shelves of the front row shelves. [B] is performed by performing the operations in reverse.

The present invention is not limited to the illustrated embodiment. For example, the locking device and the locked device are not limited to the hook and the handle, but may be a magnet that is turned on and off at a predetermined time, or other means. In the case of the hook and the handle, the engagement may be performed by lowering the hook, not by raising the hook, that is, by lowering the elevating body. The locked member is provided at the front end of the tray, but when it is also provided at the rear end, the tray can be stored in any of the front and rear directions to facilitate the handling.

Further, if the fork body is provided with locking members at the front end and the rear end, and the storage shelf forms a front row group and a depth row group on both sides of the traveling path of the traveling body, respectively, one fork is provided. The slide fork can correspond to the storage shelves on both sides, that is, the storage shelves in four rows.

[0035]

As described above, according to the present invention, it is possible to cope with two rows of storage shelves by merely providing a slide fork on which an auxiliary arm and a fork body are superimposed on an elevating body. The body can reduce the installation area for the slide fork, and the elevating body itself is downsized.
Also, at this time, since the lifting body does not need to move the traveling body to accommodate both storage shelves, its operation is greatly simplified. Further, since the fork body and the auxiliary arm are usually formed in a plate shape, even if they are stacked, the increase in the height dimension is not so large, and the apparatus does not become large. Further, the fork body is sufficient if the front end locking member is located at the position of the locked member on the rear surface of the tray in the row of shelves, so that the forward distance is reduced, the required time is shortened, and the fork body is supported. Also, the moment load applied to the auxiliary arm or the like becomes small, and a large strength is not required. This also contributes to the downsizing of the device.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a step of taking out a tray of a front row shelf group in the operation of the apparatus in FIG. 1;

FIG. 3 is a diagram illustrating a process of taking out a tray of a row of shelves in the operation of the apparatus in FIG. 1;

4A and 4B are schematic plan views of a conventional apparatus. FIG. 4A is a diagram showing a state of taking out a tray of a front row group, and FIG. 4B is a view showing a state of taking out a tray of a deep row group. .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front row shelf group 2 Back row shelf group 3 Rail body 4 Tray 4A Tray 4B Tray 5 Locked tool 6 Running body 7 Mast 8 Elevating body 9 Slide fork 10 Auxiliary arm 11 Fork body 12 Locking tool

Continuing from the front page (72) Inventor Hiroshi Ishikawa 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. (72) Inventor Hideyuki Nakagawa 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Stock F term in the company (reference) 3F022 EE01 FF01 JJ09 KK01 KK14 MM01

Claims (5)

[Claims] 1. A mast is provided upright on a traveling body which can travel on a floor surface in a certain direction and stops at a predetermined position. The mast is guided by the mast so as to be able to move up and down and stops at a predetermined height position. In a three-dimensional warehouse in which a sliding fork that can move forward and backward in the horizontal direction is supported, and the tray moves in and out of a designated storage shelf using the sliding fork, Is provided on at least one side of the traveling path of the traveling body, two rows of a front row shelf group and a depth row group parallel to the path are provided at the same height level, and the slide fork is on the elevating body and moves forward and backward. A movable auxiliary arm and a fork body movable in the same direction on the auxiliary arm are vertically stacked. The fork body has a stopper at an end thereof, and the fork body is provided with a tray of a front row shelf group. Go straight down to this Is placed on the elevating body and retracted to the position on the elevating body, and the tray of the row shelves is advanced until the locking member of the fork body is located immediately below the locked member of the load, and locked. A three-dimensional warehouse, wherein the tray is retracted so that the tray is pulled out to the position of the front row shelves after the tool is engaged with the locked tool. 2. At least the front shelf of the front shelf and the back shelf is provided such that two rails extending in the moving direction of the fork support the side bottom edge of the tray. The three-dimensional warehouse according to claim 1, wherein the three-dimensional warehouse can be moved forward and backward between the two rail bodies. 3. The three-dimensional warehouse according to claim 1, wherein the locking device and the locked device are engaged in the front-rear direction by raising or lowering the elevating body by a predetermined amount. . 4. The three-dimensional warehouse according to claim 1, wherein the locked members are provided at a front end and a rear end of the tray. 5. The fork body is provided with locking members at a front end and a rear end, and storage shelves having a front row group and a depth row group are provided on both sides of a traveling path of the traveling body. The three-dimensional warehouse according to claim 1.