JP2002240908A - Cargo receiving system and shelf facility comprising the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce labor when a worker transfers an article from a cargo receiving stand to a truck. SOLUTION: A cargo 2 is formed by a pallet 3 having an opening 7 and the article 4 loaded on the pallet 3. The cargo receiving stand 13 comprises a support part 26 for supporting the pallet 3, a transferring device 31 to ascend/ descend between a descending position set through the opening 7 below the support part 26 and an ascending position B set above the pallet 3, and an ascending/descending means 32 for ascending/descending the device 31. The device 31 comprises several rollers for transferring 33 for delivering the supported article 4 to a delivery part 30 side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiving system comprising a load and a receiving stand for receiving the load, and a shelf facility provided with the above-mentioned receiving system.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 4-292308, for example, there is a shelf facility composed of a pair of shelves and a loading / unloading device which can travel in a passage formed between the shelves. . The loading / unloading device is a stacker crane composed of a traveling body capable of traveling on the floor in the passage, a lifting platform provided on the traveling body, and a multi-stage fork type loading / unloading tool provided on the lifting platform. In addition, a cargo receiving stand is provided at a cargo handling area formed outside one end of the shelf to support the cargo from below.

[0005] As shown in FIG. 10, a load 80 handled by the above-mentioned shelf equipment is obtained by placing an article 82 on a pallet 81.
Combining the traveling of the traveling body of the loading / unloading device, the lifting / lowering of the elevating platform, and the retreating of the loading / unloading device, the load 80 is taken out of the shelf 83, and then the loading / unloading device is moved out of the side of the load receiving table 84, and The load 80 has been transferred onto the receiving table 84. Then, the worker pushes the hand-held cart 85 to the receiving tray 8.
10, the worker lifted the article 82 placed on the pallet 81 on the loading tray 84 by hand and transferred it onto the cart 85 as shown by the arrow in FIG. 10. .

[0004]

However, in the above-described conventional type, when the article 82 is transferred from the receiving tray 84 to the carriage 85 or the like, the worker must move the article 82 placed on the pallet 81 on the receiving tray 84. Is required to be lifted by hand, so that when the article 82 is heavy, there is a problem that labor is required.

[0005] It is an object of the present invention to provide a load receiving system capable of reducing the labor required for an operator to transfer an article from a load receiving table to a cart or the like, and a shelf facility provided with the load receiving system.

[0006]

In order to achieve the above object, a first aspect of the present invention is a load receiving system including a load and a load receiving table for receiving the load. The load receiving table comprises a holding member provided, and an article placed on a mounting surface of the holding member, wherein the load receiving table receives the load, a support portion supporting the holding member, and sends out the load. A transfer unit that moves up and down between a descending position set below the support unit and a rising position set above the holding member through a holding member supported by the support unit; And a lifting means for raising and lowering the transfer device. The transfer device operates in a direction in which the article of the load supported by the support portion is sent to the sending portion side.

According to this, in a state where the load is received from the receiving portion of the load receiving table and is supported by the supporting portion, the transfer device is moved from the lowered position by the elevating means through the holding member supported by the supporting portion to the raised position. By ascending, only the article is supported by the transfer device and lifted from the holding member while the holding member is left on the support portion. In this state, the article is sent out of the receiving tray from the sending unit by the transfer device, so that the labor required for the operator to transfer the article from the receiving tray to the cart or the like is reduced.

According to a second aspect of the present invention, an opening is formed in the mounting surface so as to penetrate vertically, and the transfer device moves between the lowered position and the raised position through the opening of the holding member supported by the supporting portion. It moves up and down.

According to this, in a state where the load is received from the receiving portion of the load receiving table and is supported by the support portion, the transfer device is moved from the lowered position through the opening of the holding member supported by the support portion by the elevating means. As a result, only the article is supported by the transfer device and lifted from the holding member while the holding member remains on the support portion.

According to a third aspect of the present invention, the transfer device comprises a plurality of transfer wheels, and each transfer wheel is configured to be rollable in a direction in which articles of a load supported by the support portion are sent out to the delivery portion side. Is what is being done.

[0011] According to this, while the holding member is left on the support portion, only the article is supported by the plurality of transfer rings of the transfer device and lifted from the holding member, and the article is moved to the delivery section side. By pushing (or pulling out), the transfer wheel rolls, so that the article is easily sent out of the delivery unit from the sending unit.

According to a fourth aspect of the present invention, the load receiving table is provided with a braking means for braking the movement of the article supported by the transfer device raised to the raised position toward the delivery section. According to this, the movement of the article supported by the transfer device that has risen to the ascending position is braked by the braking means, thereby preventing an unexpected situation in which the article is inadvertently moved to the sending unit side.

According to a fifth aspect of the present invention, the braking means is provided at the delivery portion and is rotatable in the same direction as the transfer wheel, and is capable of coming into contact with and separating from the guide wheel. The guide wheel is provided at substantially the same height as the raised position.

According to this, the brake is brought into contact with the guide wheel in a state where only the article is supported by the transfer wheel of the transfer device and lifted from the holding member while the holding member is left on the support portion. When the guide wheel is fixed in this way, the movement of the article toward the sending section is braked (restricted) by the guide wheel. Further, when the braking body is separated from the guide wheel to release the fixation of the guide wheel, the guide wheel can roll in the same direction as the transfer wheel, and the article is pushed out to the delivery unit side. By (or withdrawing), the guide wheel rolls together with the transfer wheel, so that the article is easily sent out of the delivery unit from the sending unit.

According to a sixth aspect of the present invention, when the brake body is separated from the guide wheel, braking is released and the guide wheel can freely roll. According to a seventh aspect of the present invention, there is provided a shelf facility provided with the load receiving system according to any one of the first to sixth aspects, wherein a shelf for storing a load and a load between the shelf and the load receiving table are put in and out. A loading / unloading means for removing only the article from the holding member while leaving the holding member on the receiving table.

According to this, by taking out the load from the shelf using the loading / unloading means and passing it to the load receiving table, the load is received from the receiving section of the load receiving table and is supported by the support section.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. As shown in FIG.
Reference numeral 1 denotes a shelf facility for storing a large number of loads 2 and storing and unloading them.
Here, the load 2 is a pallet 3 (an example of a holding member).
And an article 4 placed on the pallet 3. As shown in FIGS. 6 and 8, the pallet 3 includes a pair of side members 5 and a plurality of horizontal members 6 provided between the side members 5. , An opening 7 penetrating vertically. The upper surface of each horizontal member 6 is formed as a mounting surface 8 on which the article 4 can be mounted.

The shelf equipment 1 includes a pair of shelves 11, a cargo handling portion 12 formed on each side of each of the shelves 11, a cargo receiving table 13 provided in the cargo handling portion 12, and a A stacker crane 14 (an example of a loading / unloading unit) for loading and unloading the load 2 with the table 13.

As shown in FIG. 9, a plurality of storage sections 15 are formed on the shelf 11 in a vertical direction and a frontage direction, and a load 2 is stored in each of the storage sections 15. The stacker crane 14 is supported and guided by a traveling body 18 traveling in a frontage direction from a home position HP in a passage 17 formed between the pair of shelves 11 and a post 19 provided on the traveling body 18. The shelf 20 includes a lifting platform 20 that moves up and down, and a fork device 21 that is provided on the lifting platform 20 and moves back and forth in the depth direction of the shelf 11.

The receiving table 13 has the following configuration. That is, as shown in FIGS. 1 to 3, the receiving table 13 has a table body 23.
Are four vertical supports 24 in front, rear, left and right, and these vertical supports 24
And a plurality of connecting members 25 connected therebetween. Support portions 26 for supporting the four corners of the pallet 3 are formed on the upper end surface of each of the vertical columns 24. In addition, the pallet 3 is accurately placed on each support portion 2 at the upper end of each vertical support 24.
6. A plurality of guide members 27a provided with inclined surfaces for guiding up
To 27d. On the side of the base body 23 facing the traveling path 28 of the stacker crane 14, a receiving unit 2 for receiving the load 2 from the stacker crane 14 at the time of unloading.
9 are formed. Further, a delivery section 30 for delivering the load 2 at the time of unloading is formed at a front portion of the base body 23.

Each of the support portions 26 is provided on the base body 23.
A plurality of transfer devices 31 that move up and down between a lowering position A (see FIG. 4) and an ascending position B (see FIG. 5) through each opening 7 of the pallet 3 supported by Lifting means 32 for lifting and lowering. still,
The lowering position A is set below the support portions 26, and the raising position B is set above the pallets 3 supported by the respective support portions 26.

Each of the transfer devices 31 includes a plurality of transfer rollers 33 (an example of a transfer wheel) arranged in a line in the feeding direction C, and a holding member 34 for holding the transfer rollers 33 freely. And each holding member 34
Are provided on a common elevating body 35. As shown in FIG. 6, each of the transfer rollers 33 is a free roller type that is freely rotatable about an axis 36 in a direction perpendicular to the feed direction C.

The elevating means 32 comprises a plurality of vertically arranged cylinder devices 37 provided on the base body 23.
The distal ends of the piston rods 38 of these cylinder devices 37 are connected to the elevating body 35.

Further, the base body 23 has a raised position B
A braking means 39 is provided for braking (restricting) the movement of the article 4 supported by the transfer device 31 ascended to the delivery section 30 side. That is, the above-mentioned braking means 39
0, and a guide roller 40 (an example of a guide wheel) that can idle in the same direction as the transfer roller 33, and presses the guide roller 40 from below to apply a brake to the guide roller 40. The brake body 41 includes an actuator 42 that presses and separates the brake body 41 from and to the guide roller 40.

The guide roller 40 is a free roller, is mounted between the upper portions of the two vertical columns 24 on the side of the sending section 30 via brackets 43 at both ends, and has a raised position B (FIG. 5). (See reference). Further, as shown in FIG. 7, the brake body 41 is attached to a horizontal shaft 44 provided below the guide roller 40. One end of the horizontal shaft 44 is provided on one bracket 43, and the horizontal shaft 44 is configured to be vertically swingable about the one end. The actuating device 42 is installed below the other end (free end) of the horizontal shaft 44, and has a bottomed tubular main body 45 having an open upper surface, and a closed upper surface of the main body 45. And an expandable / contractible rubber body 46 provided.

The main body 45 is connected to a supply / exhaust device (not shown) for supplying working air into the main body 45 or discharging working air from the main body 45. When the working air is supplied into the main body 45, the rubber body 46 expands upward as shown by the solid line in FIG.
Is pivoted upward, whereby the brake body 41 is pressed against the guide roller 40 from below, and the guide roller 40 is braked. When the operating air in the main body 45 is exhausted, the rubber body 46 contracts downward and swings the horizontal shaft 44 downward, as shown by the phantom line in FIG. Are separated below the guide roller 40, and the braking of the guide roller 40 is released.

As shown in FIG. 5, of the guide members 27a to 27d, the guide member 27d located on the opposite side to the guide roller 40 is provided between the upper portions of the pair of vertical supports 24, The upper end of the guide member 27d is set to be higher than the raised position B.

Further, as shown in FIG.
An operation box 48 for a loading tray is installed in front of the control box 3. Switches (not shown) for raising and lowering the transfer device 31 and braking and braking of the guide rollers 40 are provided in the operation box 48. Switches (not shown) and the like for releasing are provided.

When the article 4 is carried out of the loading tray 13 or loaded into the loading tray 13 from the outside, a hand-held cart 49 is generally used as shown in FIGS. Above the carriage 49, a plurality of freely rotatable support rollers 50 for supporting the article 4 are provided.
Each of the support rollers 50 is a free roller, and is located at the same height as the raised position B.

The operation of the above configuration will be described below.
When unloading the load 2, the load 2 is moved from the target storage section 15 to the stacker crane 14 side by moving the traveling body 18 of the stacker crane 14, raising and lowering the elevating platform 20, and retracting the fork device 21. Take out. afterwards,
By moving the traveling body 18 to move the stacker crane 14 to the home position HP, the lifting and lowering of the lift 20 and the withdrawal of the fork device 21 are combined, and the load 2 is transferred from the receiving portion 29 of the load receiving tray 13 to the support 26. By lowering, the pallet 3 of the load 2 is supported by the support portions 26 as shown in FIG. 4, and the article 4 is placed on the pallet 3. At this time, each transfer device 31 is moved to the lower position A
It is descending until.

As shown in FIG. 9, the worker lays the carriage 49 next to the front of the loading tray 13 and operates switches of the operation box 48 to operate the main body 45 of the braking means 39.
The working air inside is exhausted. As a result, the rubber body 46 contracts downward as shown by the imaginary line in FIG.
1 is spaced below the guide roller 40 and the guide roller 4
The braking (fixing) of 0 is released.

By operating the switches in the operation box 48, as shown in FIG. 5, the piston rods 38 of the cylinder devices 37 of the lifting / lowering means 32 are extended, and the respective transfer devices 31 are moved from the lowered position A to the respective support members. It rises to the elevation position B through (via) each opening 7 of the pallet 3 supported by the part 26. Thereby, the pallet 3 is supported
, Only the article 4 is supported by the plurality of transfer rollers 33 of each transfer device 31 and lifted from the pallet 3.

In this state, when the worker pushes (or pulls out) the article 4 in the sending direction C, the respective transfer rollers 33 and the guide rollers 40 roll, so that the article 4 can be easily sent out. From the trolley 49 side. The article 4 sent out to the cart 49 in this manner is smoothly transferred onto the cart 49 by the rolling of each support roller 50 of the cart 49. When the article 4 is transferred from the loading tray 13 to the trolley 49 in this manner, the operator only has to push out (or pull out) the article 4 and move the article 4 in the lateral direction, and it is not necessary to lift the article 4 by hand. Since there is no work, the labor is reduced.

Further, by operating the switches of the operation box 48 to supply operating air into the main body 45 of the braking means 39, the rubber body 46 is expanded upward as shown by the solid line in FIG. When the body 41 is pressed against the guide roller 40 and the guide roller 40 is braked (fixed), the article 4 supported by the transfer device 31 at the ascending position B is inadvertently moved to the delivery unit 30 side. As a result, an unexpected situation such as dropping out of the sending unit 30 can be prevented.

Further, as shown in FIG. 5, the articles 4 supported by the transfer device 31 at the ascending position B are inadvertently sent out by the delivery section 30.
Even if the user tries to move to the opposite side, the article 4 comes into contact with the guide member 27d, thereby preventing an unexpected situation in which the article 4 accidentally falls off from the opposite side of the sending unit 30.

After the article 4 is transferred onto the carriage 49 and unloaded, the switches of the operation box 48 are operated to operate the piston rods 38 of the cylinder devices 37 of the lifting / lowering means 32.
Is reduced, and each transfer device 31 descends from the ascending position B to the descending position A through each opening 7 of the empty pallet 3 supported by each of the support portions 26. After that, the empty pallet 3 left on the support portion 26 is returned from the receiving tray 13 to the storage portion 15 of the shelf 11 by the stacker crane 14.

As described above, only the article 4 is unloaded from the cart 49, and the remaining pallet 3 circulates only between the loading tray 13 and the storage section 15 of the shelf 11, but is not carried out to the outside. The handling method is called a closed system.

When the load 2 is to be stored, the reverse of the above-described release may be performed. That is, the cart 49 on which the articles 2 to be loaded are placed is placed next to the front of the loading tray 13, and the empty pallet 3 is taken out of the shelf 11 using the stacker crane 14 and is supported on the support 26 of the loading tray 13. I do. Further, each of the transfer devices 31 is raised from the lowered position A to the raised position B, and the braking (fixing) of the guide roller 40 is released.

In this state, when the worker pushes (or pulls out) the article 4 from the carriage 49 onto the transfer device 31, the support roller 50, the guide roller 40, and the transfer roller 33 roll. The article 4 can be easily transferred from the cart 49 to the transfer device 31.

Thereafter, the articles 4 are placed on the pallet 3 by lowering each transfer device 31 from the raised position B to the lowered position A. Then, the stacker crane 14
, The load 2 composed of the article 4 and the pallet 3 is taken out of the receiving table 13 and carried into the storage section 15 of the shelf 11.

In the above embodiment, the pallet 3 is used as an example of the holding member. However, a box-shaped bucket or the like having an open upper surface may be used. An opening 7 is formed at the bottom of the bucket, and the inner bottom surface of the bucket serves as the mounting surface 8.

In the above embodiment, the lifting / lowering means 32 is constituted by a plurality of cylinder devices 37, but may be singular or a motor or the like may be used in place of the cylinder device 37.

In the above embodiment, a plurality of transfer devices 31 are provided, but the transfer device 31 may be singular by using a wide transfer roller 33. In the above embodiment, the transfer roller 33 and the guide roller 40 are free rollers that are freely rotatable. However, the rollers 33 and 40 may be forcibly rotated by a driving device such as a motor. . Further, instead of the transfer roller 33, a transfer device such as a belt conveyor or a chain conveyor may be used.

In the above embodiment, as shown in FIG.
The guide roller 40 is provided at the same height as the raised position B of the transfer roller 33, but may be provided at substantially the same height including a slight difference.

In the above embodiment, air pressure is used to operate the braking means 39, but hydraulic pressure may be used. Further, the braking means 39 may be omitted. In the above embodiment, as shown in FIG.
9 and the sending section 30 are orthogonal to each other, but may be opposite to each other on a straight line.

In the above embodiment, the article 4 is placed directly on the pallet 3. However, a sheet or the like may be placed on the pallet 3 and the article 4 may be placed thereon via the sheet.
In the above embodiment, as shown in FIG.
Although the hand-held trolley 49 is placed beside the trolley, a self-propelled trolley or a transport device other than the trolley may be used.

In the above embodiment, as shown in FIG.
The handling section 12 is formed outside the end of the shelf 11,
It is not limited only to the outer side of the end of the shelf 11. For example, a cargo handling portion 12 is formed in a part (center portion or the like) of the shelf 11 as shown by an arrow (a) in FIG. The article 4 may be taken in and out in the direction.

[0048]

As described above, according to the first aspect of the present invention, while the load is supported by the support, the transfer device rises from the lowered position to the raised position through the holding member supported by the support. Thus, only the article is supported by the transfer device and lifted from the holding member while the holding member is left in the support portion. In this state, the article is sent out of the receiving unit from the sending unit by the transfer device,
The labor required for the worker to transfer the articles from the receiving tray to the trolley or the like is reduced.

According to the second aspect of the present invention, in a state where the load is received from the receiving portion of the load receiving table and is supported by the support portion, the transfer device is moved from the lowered position by the elevating means to the opening of the holding member supported by the support portion. By moving up to the ascending position through the section, only the article is supported by the transfer device and lifted from the holding member while the holding member remains in the support section.

According to the third aspect of the present invention, while the holding member is left on the support portion, only the article is sent out in a state where the article is supported by the plurality of transfer rings of the transfer device and lifted from the holding member. Push out (or pull out)
Thereby, since the transfer wheel rolls, the article is easily and smoothly sent out of the sending unit to the outside of the receiving table.

According to the fourth aspect of the present invention, the movement of the article supported by the transfer device raised to the ascending position is braked by the braking means, so that an unexpected situation in which the article is inadvertently moved to the sending section can be prevented. Can be prevented.

According to the fifth aspect of the present invention, the brake body is guided by the guide ring while the article is supported by the transfer ring of the transfer device and lifted from the holding member while the holding member is left on the support portion. When the guide wheel is fixed by contacting the guide wheel, the movement of the article toward the delivery unit is braked (restricted) by the guide wheel. Further, when the braking body is separated from the guide wheel to release the fixation of the guide wheel, the guide wheel can roll in the same direction as the transfer wheel, and the article is pushed out to the delivery unit side. By (or withdrawing), the guide wheel rolls together with the transfer wheel, so that the article is easily sent out of the delivery unit from the sending unit.

According to the seventh aspect of the present invention, by taking out the load from the shelf using the loading / unloading means and passing it to the load receiving table,
The load is received from the receiving portion of the receiving table and is supported by the support portion.

[Brief description of the drawings]

FIG. 1 is a plan view of a receiving table of a receiving system according to an embodiment of the present invention.

FIG. 2 is a view taken along the line XX in FIG.

FIG. 3 is a view taken in the direction of arrows YY in FIG. 1;

FIG. 4 is a side view of the same, showing a state where the transfer device is lowered to a lowered position.

FIG. 5 is a side view of the same, showing the state in which the transfer device is raised to a raised position.

FIG. 6 is a view showing a state in which a transfer roller of the transfer device of the load receiving tray is raised from an opening of the pallet to a raised position.

FIG. 7 is a front view of the braking means of the loading tray.

FIG. 8 is a plan view of the pallet.

FIG. 9 is a plan view of the shelf equipment provided with the cargo receiving system.

FIG. 10 is a diagram of a conventional cargo receiving system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shelf equipment 2 Load 3 Pallet (holding member) 4 Article 7 Opening 8 Placement surface 11 Shelf 13 Load receiving stand 14 Stacker crane (in / out means) 26 Support part 29 Receiving part 30 Sending part 31 Transfer device 32 Elevating means 33 Transfer Roller (transfer wheel) 39 Braking means 40 Guide roller (guide wheel) 41 Braking member A Down position B Up position

Claims (7)

[Claims] 1. A load receiving system comprising a load and a load receiving table for receiving the load, wherein the load is mounted on a holding member having a mounting surface and on the mounting surface of the holding member. The load receiving table is configured to receive the load, a support portion supporting the holding member, a sending-out portion that sends out the load, and the support portion through the holding member supported by the support portion. A transfer device that moves up and down between a lowering position that is set below the unit and a raising position that is set above the holding member, and a lifting unit that moves the transfer device up and down. A load receiving system that operates in a direction in which an article of a load supported by a support unit is sent to a sending unit side. 2. An opening vertically penetrating the mounting surface, and the transfer device moves up and down between a lowered position and a raised position through the opening of the holding member supported by the supporting portion. The receiving system according to claim 1, wherein: 3. The transfer device comprises a plurality of transfer wheels,
The load receiving system according to claim 1, wherein each of the transfer wheels is configured to be able to roll in a direction in which the article of the load supported by the support unit is sent out to the sending unit side. 4. The load receiving platform according to claim 1, wherein a braking means for braking the movement of the article supported by the transfer device raised to the raised position toward the delivery section is provided on the load receiving table. The receiving system according to any of the above. 5. A braking means provided on a delivery portion and comprising a guide wheel capable of rolling in the same direction as the transfer wheel, and a brake body capable of coming into contact with and separating from the guide wheel. 5. The cargo receiving system according to claim 4, wherein said guide wheel is provided at substantially the same height as a raised position. 6. The load receiving system according to claim 5, wherein when the brake body is separated from the guide wheel, braking is released and the guide wheel is freely rolled. . 7. A shelf facility comprising the load receiving system according to any one of claims 1 to 6, wherein a shelf for storing a load, and a load for loading and unloading the load between the shelf and the load receiving table. Means for carrying out only articles from the holding member while leaving the holding member on the receiving table.