JP2583404Y2 - Tray elevating device at the entrance / exit of goods storage shelves - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an article storage shelf having a stage for receiving a tray from an elevating table for moving the tray up and down in an article storage shelf and transferring the tray to the elevating table. And a lifting device for raising and lowering the tray.

[0002]

2. Description of the Related Art Conventionally, as an example of an article storage shelf (not shown), there is an article storage shelf having a shelf and an elevating table which moves up and down along the shelf. The shelves are provided with shelves for storing the articles loaded on the trays together with the trays, an entry / exit opening for an operator to reach in and out of the trays by hand, and articles are taken in and out near the entrance / exit. And a loading / unloading stage for loading a tray. The elevating table receives the tray from the loading / unloading stage, moves it up and down to the desired shelf, and sends it to the shelf, and on the contrary, receives the tray from the shelf,
It moves up and down and sends out to the entry / exit stage. In this case, the elevating table must be waiting at the loading / unloading stage while an operator is taking articles in and out of the tray. For this reason, there is a problem that the efficiency of taking in and out of the article storage shelf is low.

In order to cope with such a problem, a fixed temporary storage shelf for temporarily storing trays is provided near the entrance / exit stage, and articles are taken in and out of the tray on the entrance / exit stage. During this time, a method of transporting the next tray to the temporary storage tray can be considered.

[0004]

However, when such a temporary storage shelf is provided, another problem is that the order of loading and unloading trays between the loading and unloading shelf and the temporary storage shelf becomes complicated. Occurs.

[0005]

SUMMARY OF THE INVENTION The present invention firstly comprises a shelf provided with a shelf for storing articles loaded on a tray together with the tray, and a loading / unloading port for taking articles in and out of the tray. In an article storage shelf having a lifting table for transferring the tray at the entry / exit port and lifting / lowering the tray along the shelf between the entrance / exit port and the shelf, A pair of chains or belts circulating vertically along the shelf on both sides, and a plurality of tray support means attached to the chains or belts at predetermined intervals; , the mounted so as to face in the tray supporting means with each other on a pair of chain or belt, and the other when one of the tray support means of said tray support means adjacent the circulating direction is elevation before inlet-outlet port Secondly, the tray supporting means is mounted directly above or below the one tray supporting means, and secondly, a shelf for storing the articles loaded on the tray together with the tray, and an article on the tray. A shelf provided with a loading / unloading port for loading / unloading the tray, and an elevator for transferring the tray at the loading / unloading port and moving the tray up and down along the shelf between the loading / unloading port and the shelf. In an article storage shelf having a table, a plurality of integrated tray support means vertically spaced from each other, and a tray elevating means for raising and lowering the plurality of tray support means so that the tray support means faces the entrance / exit port. Thirdly, a shelf provided with a shelf for storing the articles loaded on the tray together with the tray, an entrance and an exit for loading and unloading the articles into and from the tray, and the tray at the entrance and exit. And an elevating table for carrying the tray up and down along the shelf between the entrance / exit and the shelf, so as to support the tray from both sides. A pair of tray support means, which are provided on the shelf so as to be rotatable in the vertical direction in opposition to the entry / exit opening, and are restricted from rotating downward from a predetermined position; This problem has been solved by a device having a tray elevating means for receiving a tray from a table and elevating the tray to the pair of tray supporting means.

[0006]

In the first apparatus, when the first tray supporting means is stopped at the entrance / exit port, the second tray supporting means is stopped directly above or below the first tray supporting means ( Less than,
Only the case where the vehicle stops immediately below will be described. ). The lifting table carries the second tray taken out of the shelf into the second tray support means below the entry / exit port, and then rises,
The first tray is unloaded from the first tray support means. Thereafter, the lifting table moves the first tray up and down to a desired shelf and removes the third tray from another shelf.

While the lifting table is away from the loading / unloading port, the chain circulates and raises the second tray support means to the loading / unloading port. At the same time, the first tray supporting means moves away from the loading / unloading port, and the third tray supporting means turns right below the second tray supporting means. Articles are taken in and out of the second tray on the second tray supporting means by an operator. While the articles are being taken in and out of the second tray, the lifting table carries the third tray into the third tray support means.

In the second apparatus, the upper tray supporting means and the lower tray supporting means are alternately stopped at the entrance / exit port by the tray elevating means. First, it is assumed that the upper tray support means faces the entrance / exit port. The elevating table carries the second tray into the lower tray supporting means, rises, and carries out the first tray from the upper tray supporting means. Thereafter, the lifting table moves the first tray up and down to a desired shelf and removes the third tray from another shelf. While the elevating table is away from the loading / unloading port, the upper and lower tray supporting means are integrally raised, and the lower tray supporting means is opposed to the loading / unloading port.
The loading / unloading of articles is performed with respect to the tray.

After the third tray is loaded, the elevating table is lowered to carry out the second tray, from which articles have been taken in and out, from the lower tray support means. Thereafter, the lifting table conveys the second tray to the shelf and removes the fourth tray. During this time, the upper and lower tray support means
The tray is lowered, and the upper tray support means faces the loading / unloading port, and articles are taken in and out of the third tray.

The elevating table of the third device carries the second tray into the tray elevating means, moves up, and carries out the first tray from the tray supporting means. Thereafter, the lifting table moves the first tray up and down to a desired shelf and removes the third tray from another shelf. While the elevating table is away from the loading / unloading port, the tray elevating means raises the second tray, pushes up the tray support means once, rotates it, and then descends. During the lowering of the tray raising means, the tray supporting means returns to the original position and receives the second tray on the tray raising means. Thereafter, the worker puts articles in and out of the second tray. During this time, the elevating table carries the third tray into the lowered tray elevating means.

After the third tray is carried in, the elevating table rises, takes out the second tray from which the articles have been taken in and out, from the tray supporting means, and transports the second tray to the shelf.
Remove the fourth tray. In this way, the article storage shelf simultaneously moves the article in and out of the tray and the tray in and out of the shelf.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. An article storage shelf 10 (see FIG. 1) in which the tray elevating device 20 is incorporated has a pair of shelves 11 and 12 installed in parallel with each other, a chain 14 circulated by a motor 13, and a pair of chains 14. An elevating table 15 that moves up and down between the shelves 11 and 12 is configured. A plurality of shelves 1 for storing a tray 16 on which containers (articles) W are placed are placed on the pair of shelves 11 and 12.
7 are provided. The containers W stored in the article storage shelves 10 are stacked on the tray 16 and stored. The tray 16 is used only inside the article storage shelf 10 and is rarely taken out.

The tray 16 circulates and moves within the article storage shelf 10 by means of a lifting table 15 and a tray support means to be described later. The circulation route is
7, the elevator table 15, the lower part of the entrance / exit port 18, the entrance / exit port 18, the elevating table 15, and the shelf 17. One shelf 1
In addition to the shelf 17, an entrance / exit 18 is provided in 2. The loading / unloading port 18 is a port through which a worker inserts a hand and puts the container W into and out of the tray 16 on the tray elevating device 20.

The elevating table 15 receives the tray 16 containing the container W from the tray elevating device 20, moves it up and down to a desired shelf 17, and sends it to the shelf 17. The tray 16 receives the tray 16, lifts it, and sends it out to the tray lifting device 20.

Tray lifting device 20 (see FIGS. 2 and 3)
Is installed in a place corresponding to the entry / exit stage of the conventional article storage shelf, and mainly comprises four chains 21, 22, 23,
24 (not shown) and eight tray support means 2
5, 25, 26, 26, 27, 27, 28, 28. The rotating shaft 3 is provided between the column 31 and the column 32 of the shelf 12 and between the column 33 (not shown) and the column 34.
5, 36, 37 and 38 are provided. Each rotating shaft 3
5, 36, 37, and 38 are arranged in the direction in which the container W is inserted and removed (the direction of the arrow A in FIG. 2).

Sprockets 41, 41, 42, 42, 43, 4 are provided near both ends of each of the rotating shafts 35, 36, 37, 38.
3, 44, 44 (one 43, 44 is not shown) are integrally attached. A total of eight sprockets are provided. Of the eight sprockets, chains 21, 22, 23, and 24 are stretched between the sprockets 41, 42, 43, and 44 facing each other in the vertical direction.
That is, each of the chains 21, 22, 23, and 24 circulates vertically in the vicinity of the four columns 31, 32, 33, and 34 of the shelf.

Between the chain 21 and the chain 22 and between the chain 23 and the chain 24, four
Tray support means 25, 26, 27, 28, 25, 2
6, 27, 28 are attached by brackets 30. Each tray support means is provided with a respective rotating shaft 35, 36, 37,
It is mounted parallel to 38. The tray support means is a long member having an L-shaped cross section, and a well-known roller conveyor 29 for facilitating taking in and out of the tray is attached to the upper surface. The tray support means 25, 26, 27, 28 provided on the chains 21, 22 are opposed to the tray support means 25, 26, 27, 28 provided on the chains 23, 24 (FIG. 3). , The tray support means of the same reference is opposed to each other.) Also, one of the tray support means 25, 26 adjacent in the circulation direction,
When 5 rises to the loading / unloading port 18, the other tray support means 26 comes directly below one tray support means 25.

A driving sprocket 45 is mounted on the rotating shaft 36. A drive chain 47 extends between the drive sprocket 45 and a motor 46 installed on the floor F.

Next, the operation will be described. Lifting table 15
After the second tray 162 is carried into the second tray support means 26, 26 (see FIGS. 2 and 3), the second tray 162 is lifted and moved up from the first tray support means 25, 25 (see FIG. 1). The first tray 161 is carried out. After that, the lifting table 15
The first tray 161 is conveyed up and down to a desired shelf 17, and another third tray (not shown) is taken out from the other shelf 17. During this time, the second tray support means 26,
26 rises to the loading / unloading port 18, and the third tray supporting means 2
7 and 27 are wrapped right below the second tray support means 26 and 26, and a worker inserts and removes containers from and into the second tray 162. While the container is being taken in and out of the second tray 162, the lifting table 15 carries the third tray into the third tray support means 27, 27. Thereafter, the lifting table 15 moves up,
The second tray 162 is received and transported to the shelf 17.

As described above, the tray supporting means which stops at the loading / unloading port 18 is a tray dedicated to carrying out the tray for transferring the tray to the elevating table 15, and the tray supporting means which stops below the loading / unloading port 18 is: It becomes a tray exclusively for carrying in the tray, which receives the tray from the elevating table 15. Further, the tray lifting / lowering device 20 allows the container to be moved in and out of the tray and the tray to be moved in and out of the shelf at the same time. Further, in the tray lifting / lowering device 20, the tray support means rises from below the entrance / exit port 18, but one of the rotating shafts 36, 38 is provided above the other rotating shafts 35, 37. The tray supporting means may be lowered from above the entrance port 18.

Next, another tray lifting device will be described with reference to FIGS. The tray elevating device 120
Mainly, two integrated tray support means 61 and 62 spaced apart in the vertical direction, and the two tray support means 61 and 62 are moved up and down to move the two tray support means 61 and 62 to the loading / unloading port 1.
8 and a well-known electric cylinder (tray elevating means) 63 alternately opposed to each other.

Each of the tray support means 61 and 62 has a rectangular frame in a plane shape, and is provided on both sides in a direction (arrow B direction in FIG. 4) for inserting and removing a container (not shown).
Guide rails 64, 64, 65, 65 having an L-shaped cross section are fixed. A known roller conveyor 66 is provided on the rail.
Is installed. Each tray support means 61, 62 is connected and integrated by four connecting beams 67. At the four corners of each tray support means 61, 62, the columns 31, 3 of the shelf 12 are provided.
A roller 68 for guiding the tray support means 61, 62 to move up and down along 2, 33, 34 is rotatably mounted. The electric cylinder 63 is configured so that a piston 70 moves up and down by a motor 69. The elevating table 15 (see FIG. 1) in the article storage shelf is adapted to move up and down the auxiliary columns 39 (see FIG. 4).

Next, the operation of the tray elevating device 120 will be described. First, the tray support means 61 at the upper stage is
(See FIG. 4). The lifting table 15 is attached to the lower tray supporting means 62 by the second tray 16.
2, the first tray 161 is unloaded from the upper tray support means 61, and then the first tray 161 is transported up and down to a desired shelf 17 to be moved to another shelf 17 From the third tray (not shown). During this time, the upper and lower tray support means 61 and 62 are integrally raised (see FIG. 6), and the lower tray support means 62 is opposed to the loading / unloading port 18, and the second tray 162 is operated by an operator.
The container is moved in and out of the container. While the container is being taken in and out of the second tray 162, the lifting table 15 carries the third tray (see the figure) into the upper tray supporting means 61.

Thereafter, the lifting table 15 descends,
The second tray 162 in which the container has been put in and taken out is taken out from the lower tray support means 62, transported to the shelf 17, and the fourth tray (not shown) is taken out. During this time, the upper and lower tray support means 61, 62 descend,
The upper tray support means 61 faces the loading / unloading port 18,
Containers are taken in and out of a third tray (not shown). As described above, the tray lifting / lowering device 120 moves the container in and out of the tray,
The tray can be taken in and out of the machine at the same time.

Further, a tray elevating device according to another embodiment will be described with reference to FIGS. The tray elevating device 220 mainly includes a pair of tray supporting means 81, 81 and a tray elevating means. Each tray support means 81 has a long guide rail 91 having an L-shaped cross section and faces each other. A known roller conveyor 84 is provided on the upper surfaces of the guide rails 91, 91. Each tray support means 81, 81
Is rotatably provided in a vertical direction via a bracket 83 so as to pass between the support 31 and the support 32 and between the support 33 and the support 34. The bracket 83 is rotatably provided on a support column by a support shaft 90 in a vertical direction, and is restricted by a pin 85 (see FIG. 10) so that the roller conveyor 84 does not rotate below the horizontal state. ing.

The tray lifting means 82 includes a lifting frame 86
And a known electric cylinder 87. The elevating frame 86 has a rectangular shape in plan view,
Known roller conveyors 88, 88 are installed on both sides in the direction of taking in and out the container (the direction of arrow C in FIG. 7). Rollers 8 are provided at the four corners of the lifting frame 86.
9 is provided rotatably.

Next, the operation of the tray elevating device 220 will be described. The elevating table 15 carries the second tray 162 into the elevating frame 86, moves up, and carries out the first tray 161 from the elevating frame 86. Thereafter, the elevating table 15 moves the first tray 161 up and down to a desired shelf 17 and takes out another third tray (not shown) from the other shelf 17. During this time, the electric cylinder 8
7 moves the lifting frame 86 together with the second tray 162,
The tray support means 81,
After once pushing up and rotating 81, the lifting frame 86 is lowered. The tray support means 81, 81
After having once turned upward, it descends to its original position and receives the second tray 162 on the descending tray elevating means 82. During the loading and unloading of containers into and from the second tray 162, the lifting table 15 holds the lifting frame 86.
The third tray is loaded on top.

The elevating table 15 is lifted to take out the second tray 162 from which the container has been taken in and out, from the tray supporting means 81, 81, and to convey it to the shelf 17, where the fourth tray (not shown) is used. Take out). in this way,
The tray lifting / lowering device 220 simultaneously moves the container in and out of the tray and the tray in and out of the shelf.

[0029]

According to the present invention, the tray elevating device of
While the lifting table is moving the tray in and out of the shelf, another tray can be raised and lowered to the entry / exit port, and the lifting table can receive the next tray to be conveyed, It is possible to improve the efficiency of loading and unloading of articles.

[Brief description of the drawings]

FIG. 1 is an overall front view of an article storage shelf in which a tray elevating device of the present invention is incorporated.

FIG. 2 is a front view of the tray elevating device of FIG. 1, and
FIG. 2 is a sectional view taken along arrow 2-2 in FIG. 3.

FIG. 3 is a sectional view taken on line 3-3 in FIG. 2;

FIG. 4 is a front view of a tray elevating device according to another embodiment.

FIG. 5 is a sectional view taken along arrow 5-5 in FIG.

FIG. 6 is a front view of the tray elevating device in FIG. 4 in a state where the tray supporting means is raised.

FIG. 7 is a front view of a tray elevating device according to another embodiment.

8 is a sectional view taken along the line 8-8 in FIG. 7;

FIG. 9 is a view showing a state in which a lifting frame of a tray raising means is raised.

FIG. 10 is a partially enlarged view of FIG. 9;

[Explanation of symbols]

 W container (article) 10 article storage shelf 12 shelf 15 elevating table 16 tray 17 shelf 18 access port 20,120,220 tray elevating device 21,22,23,24 chain 25,26,27,28,61,81 Tray support means 63 Electric cylinder (Tray elevating means) 82 Tray elevating means

Claims (3)

(57) [Scope of request for utility model registration] 1. A shelf provided with a shelf for storing articles loaded on a tray together with the tray, an entrance and an exit for taking articles in and out of the tray, transferring the tray at the entrance and exit, and In an article storage shelf having an elevating table for elevating and lowering the tray along the shelf between the entrance / exit port and the shelf, the article is vertically circulated along the shelf on both sides of the entrance / exit port. A pair of moving chains or belts, and a plurality of tray support means attached to the chains or belts at predetermined intervals, wherein the tray support means comprises trays on the different pair of chains or belts. When one of the tray support means among the tray support means adjacent to each other in the circulation direction moves up and down to the loading / unloading port, the other tray support means is attached to the support means so as to face each other. A tray elevating / lowering device at an entrance / exit port of an article storage shelf, which is mounted so as to be located directly above or directly below the tray supporting means. 2. A shelf provided with a shelf for storing the articles loaded on a tray together with the tray, and a loading / unloading port for loading / unloading articles into / from the tray, and transferring the tray at the loading / unloading port; An article storage shelf having an elevating table for elevating and lowering the tray along the shelf between the entrance / exit port and the shelf, wherein a plurality of tray supporting means vertically spaced apart from each other; Tray raising / lowering means for raising / lowering the tray supporting means and causing the tray supporting means to face the loading / unloading port. 3. A shelf provided with a shelf for storing the articles loaded on a tray together with the tray, an entrance and an exit for loading and unloading the articles into and from the tray, and transferring the tray at the entrance and exit. In an article storage shelf having a lifting table that lifts and lowers the tray along the shelf between the loading / unloading port and the shelf, facing the loading / unloading port so as to support the tray from both sides. A pair of tray support means provided on the shelf so as to be rotatable in the vertical direction, the rotation of which is restricted from being lower than a predetermined position, and receiving trays from the elevating table below the pair of tray support means. And a tray elevating means for elevating the tray to the pair of tray supporting means.