JP2646939B2 - Pallet handling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a palletized cargo handling apparatus provided in a cargo handling area of an automatic warehouse, for example.

[0002]

2. Description of the Related Art Conventionally, as an apparatus of this type, for example, the structure shown in FIGS. 4 and 5 has been provided. That is, a shelf 42 in which a plurality of storage sections 41 are formed on the lower floor 40.
Are arranged side by side with a passage 43 provided therein, and an access device 44 is provided in the passage 43. The loading / unloading device 44 includes a traveling body 45, a carriage 47 guided by a post 46 from the traveling body 45, and a loading / unloading tool 48 provided on the carriage 47.
Etc. The loading / unloading device 44 transfers a pallet (load) 49 between the target storage unit 41 and a cargo handling place 50 provided outside the end of the shelf 42. This palette
Reference numeral 49 denotes three parallel beam members 49a and a receiving plate 49b disposed between the upper surface and the lower surface of the beam members 49a, and forms a fork insertion space 49c between the beam members 49a.

The cargo handling place 50 has a self-propelled carriage 52 supported and guided by a floor rail 51 laid along the length of a shelf 42. The self-propelled carriage 52 has a main body 53 whose surface on the side away from the shelf 42 is open, and a support rod 54 erected from four corners of the main body 53.
Forms a support surface 55 of the pallet 49. The self-propelled carriage 52 reciprocates between a first home position 57 located on the shelf 42 side by a driving device 56 and a second home position 58 separated from the shelf 42.

The outside of the second home position 58 is formed on an upper floor 59, and the upper floor 59 is set at a level lower than the support surface 55. A gantry 60 is integrally formed from the innermost part of the upper floor 59 toward the shelf 42 side, and the width of the gantry 60 is larger than the distance between the inner surfaces of the support rods 54 in the self-propelled carriage 52. It is set a little shorter.

[0005] The manual transporter 63 which can travel on the upper floor 59.
Is a main body 65 having a rear wheel 64, a pair of left and right fork bodies 66 provided in front of the main body 65,
The front wheel 67 includes a front wheel 67 provided on the lower surface of the front end so as to be able to move up and down, a handle portion 68 connected upward from the main body 65, and a lever 69 provided on the handle portion 68 for operating the front wheel 67 to move up and down.

According to this conventional configuration, the self-propelled carriage 52 supporting the pallet 49 by the support rod 54 travels outward and stops at the second home position 58. At this time, the support rods 54 are fitted on both sides of the gantry 60 shortly before reaching the second home position 58. When the pallet 49 stopped together with the self-propelled carriage 52 is taken out from the front direction B by the manual transport machine 63, first, the front wheel 67 is raised and the fork body 66 having a reduced thickness at the front is passed through the fork insertion space 49c while manually transporting. The machine 63 is advanced by hand.

At this time, the front wheel 65 rolls on the lower receiving plate member 49b, passes through the fork insertion space 49c, and then comes out onto the gantry 60. In this state, the front wheel 65 is lowered by operating the lever 69, the front portion of the fork body 66 is raised, and the pallet 49 on the support rod 54 is lifted. Thereafter, the pallet 49 can be transported to another place by moving the manual transporter 63 backward by hand. Note that the supply of the pallet 49 to the empty self-propelled carriage 52 can be performed by the reverse operation to the above.

[0008]

In the above-mentioned conventional structure, an upper floor 59A is formed on the side of the second home position 58 as shown by a virtual line in FIG. 5, for example, and the upper floor 59A is used. When the fork body 66 is to be acted on the self-propelled carriage 52 stopped at the second home position 58 from the lateral direction A, the gantry 60 and the upper floor are moved to move the support rod 54 of the self-propelled carriage 52. Gap 70 formed between 59A
As a result, the front wheel 67 falls down, so that the handling operation from the lateral direction A cannot be performed.

It is an object of the present invention to provide a palletized cargo handling apparatus that can always and safely carry out cargo handling work on a self-propelled vehicle from both the lateral direction and the forward direction.

[0010]

In order to achieve the above object, the present invention provides a pallet-based cargo handling apparatus provided with a self-propelled vehicle that can reciprocate between two remote home positions. A pallet supporting surface is formed by the upper surfaces of the supporting rods erected from the four corners of the main body, and a crossover plate located below the pallet supporting surface by a predetermined height is provided between the supporting rods in the traveling direction. Home position
The self-propelled bogie that has reached this one home position
Ends on both sides outside and opposite the home position
In the part outward, the crossover plate working floor which is combined levels provided, toward the portion of the end outer side of the working floor on the other home position, when the self-propelled carriage reaches one of the home position, Opposing in the direction perpendicular to the running direction
A gantry is provided between the inner surfaces of the supporting rods.

[0011]

According to the structure of the present invention, the self-propelled carriage supporting the pallet with the support rod is stopped at one home position by traveling. At this time, shortly before reaching one of the home positions, the support rod or the crossover plate is inserted into the gap formed between the work floor and the gantry on the outside on both sides , and reaches one of the home positions. And both
The work floor and the gantry on the outside of the side are connected to each other via a transfer plate. In this case, the pallet supported by the supporting rod is located above the gantry or the transfer plate at a predetermined height.

When the pallet is taken out sideways by the transporter, the fork body of the manual transporter is advanced with respect to the pallet from the lateral direction. Then, the front wheels and the like provided on the fork body roll from the fork insertion space of the pallet to the crossover plate on the other side, whereby the fork body is passed through the pallet.

In this state, the pallet on the support rod is lifted by raising the fork body, and then the manual carrier is moved backward.
At this time, the front wheels roll from the other side of the crossover plate onto the gantry, and from the gantry through the one side of the crossover plate to the work floor, thereby transporting the pallet to another location. I can do it.

The supply of a pallet to an empty self-propelled carriage can be performed by the reverse operation. The front of the working floor ( end
If the parts outward) taken out and supply of pallets is performed by using a gantry passing fork member to the fork insertion space of the pallet.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. A pair of shelves 3 each having a plurality of storage sections 2 formed vertically and horizontally on a lower floor 1 are arranged side by side on a passage 4, and an access device 5 is provided in the passage 4. The loading / unloading device 5 includes a traveling body 6 that can travel along the front surface of the shelf 3, a carriage 8 that is guided by a post 7 erected from the traveling body 6, and a loading / unloading mechanism that is provided on the carriage 8 so as to be able to move in and out. Tool 9 and the like.

The loading / unloading device 5 is a cargo handling unit provided by using a target storage unit 2 of the shelf 3 and a part of the lowermost storage unit 2 (or provided outside the end of the shelf 3). The pallet (load) 10 is delivered to and from the place 11. Here pallet 10
Consists of three parallel beam members 10a, and a receiving plate member 10b disposed between the upper surface and the lower surface of these beam members 10a,
A fork insertion space 10c is formed between adjacent beam members 10a.

The unloading area 10 is formed from the inside of the shelf 3 to the outside of the back surface of the shelf 3 and is supported and guided by a floor rail 12 laid perpendicular to the running direction of the loading / unloading device 5. Self-propelled trolley 13.

The self-propelled carriage 13 comprises a pair of left and right lower frames 15 having wheels 14 which can be mounted on the floor rail 12 and a connecting frame 16 provided between the ends of the lower frames 15 on the shelf 3 side. Thus, a flat frame-shaped main body whose surface away from the shelf 3 is open is formed. The support surface 18 of the pallet 10 is formed by the upper surface of the support rod 17 erected from the four corners of the main body.
The guide body of the pallet 10 from above the specified side at the top of
19 are connected. Further, between the support rods 17 facing each other in the traveling direction, a crossover plate 20 is provided below the support surface 18 by a predetermined height H.

The self-propelled carriage 13 is moved between a first home position 22 located in the shelf 3 and a second home position 23 separated from the shelf 3 by a driving device 21 arranged on the lower floor 1 side. Make a round trip. The drive device 21 employs a motor (drive device) mounting type or the like in addition to the chain drive type shown in FIG.

The second home position 23 has
2 Outside of both sides of self-propelled trolley 13 that has reached home position 23
When, the first home position 22 to the end portion outward of the opposite side, are formed in the upper floor (working floor) 25, the upper floor 25 is level aligned to the crossover plate 20. That is, the upper floor 25 is disposed close to the back surface of the shelf 3 and forms a recess 26 on the side away from the shelf 3, and the second home position 23 and the like are set in the recess 26. Here, the width of the concave portion 26
It is set to be slightly longer than the distance between the outer surfaces of 17.

A pedestal 27 is integrally formed on the upper floor 25 from the deepest part of the concave portion 26 toward the shelf 3 side. Here, the width of the gantry 27 is
The distance between the inner side surfaces of the support 17 is set to be slightly shorter, so that the support rod 17 and the transfer plate 20 can be freely fitted between the gantry 27 and the upper floor 25. The protruding length of the gantry 27 is set so as to be aligned with the transfer plate 20 when the self-propelled trolley 13 stops at the second home position 23.

The manual transporter 30 that can travel on the upper floor 25
Is a main body 32 having a rear wheel 31, a pair of left and right fork bodies 33 connected forward from the main body 32,
The front wheel 34 includes a front wheel 34 provided on the lower surface of the front end thereof so as to be able to move up and down, a handle portion 35 connected upward from the main body 32, a lever 36 provided on the handle portion 35 for operating the front wheel 34 to move up and down, and the like.

Next, the operation of the above embodiment will be described. When the self-propelled trolley 13 is stopped at the first home position 22, the target storage unit 2 is operated by a combination of the traveling motion of the traveling machine body 6, the vertical movement of the carriage 8, and the retracting movement of the insertion / removal tool 9. The pallet (load) 10 can be transferred between the pallet and the self-propelled carriage 13. Here, the loading / unloading tool 9 acts on the lower surface of the pallet 10.

The self-propelled carriage 13 supporting the pallet 10 by the empty or supporting rods 17 is moved by the driving device 21 to the floor rails.
The vehicle travels outward while being supported and guided by 12 and is stopped at the second home position 23. At this time, shortly before reaching the second home position 23, the support rod 17 and the crossover plate 20 fit into the gap formed between the upper floor 25 and the gantry 27 on both sides, and By reaching 23, the upper floor 25 and the gantry 27 on both sides are connected via the crossover plate 20.

In this case, when the pallet 10 is supported by the support rod 17, the pallet 10 is located above the gantry 27 and the transfer plate 20 with a set height H. Here, when the pallet 10 is taken out sideways by the manual transporter 30, first, the front wheel 34 is lifted to reduce the thickness of the front portion of the fork body 33, and then the manual transporter 30 is moved from the lateral direction A with respect to the pallet 10. Is advanced by hand.

At this time, the front wheel 34 is in the fork insertion space 10c.
It will roll from inside to the other side of the transition plate 20,
Therefore, the fork 33 is passed through the pallet 10. In this state, the user operates the lever 36 to lower the front wheel 34, raise the front portion of the fork body 33, and lift the pallet 10 on the support rod 17. Thereafter, the manual transport machine 30 is moved backward by hand.

As a result, the front wheel 34 is connected to the other side of the transfer plate.
The pallet 10 rolls from the top of the pallet 20 onto the gantry 27, and from the gantry 27 to the upper floor 25 via the crossover plate 20 on one side.
Can be taken out. Thereafter, the pallet 10 can be transported to another location.

The supply of the pallet 10 to the empty self-propelled carriage 13 can be performed in the reverse operation to the above. When the pallet 10 is taken out or supplied from the front direction B (outward side) of the upper floor 25, the pallet 27 is used to pass the fork body 33 through the fork insertion space 10c.

In the above-described embodiment, the handling operation for the self-propelled trolley 13 is performed by the manual transporter 30, but the handling operation may be performed by, for example, a riding type forklift. Further, in the above embodiment, the cargo handling device used for the automatic warehouse is shown, but this is a pallet for the conveyor.
It can be used for other than automatic warehouse, such as supply and removal of 10.

[0030]

According to the present invention having the above structure, the plate is inserted into the gap formed between the work floor on both sides and the gantry, and the work floor on both sides and the gantry are connected via the cross plate. It is possible to form a series, so that the handling of the self-propelled trolley from the lateral direction can always be performed safely and reliably, and the handling of the self-propelled trolley from the front is always safe using the gantry. Can be reliably performed.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, showing a pallet-based handling apparatus;

FIG. 2 is a plan view of the cargo handling device.

FIG. 3 is a schematic plan view of an automatic warehouse employing the cargo handling apparatus.

FIG. 4 shows a conventional example, and is a perspective view of a palletized cargo handling device.

FIG. 5 is a schematic plan view of an automatic warehouse employing the same cargo handling device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower floor 3 Shelf 5 Loading / unloading device 9 Loading / unloading tool 10 Pallet 10a Beam material 10b Receiving plate material 10c Fork insertion space 11 Handling space 13 Self-propelled trolley 17 Supporting rod 18 Support surface 20 Transfer plate 21 Drive 22 First home position 23 First 2 home position 25 Upper floor (working floor) 26 Depression 27 Stand 30 Manual transporter 33 Fork body A Lateral direction B Forward direction H Predetermined height

Claims (1)

(57) [Claims] 1. A self-propelled vehicle is provided, which can reciprocate between two remote home positions. The self-propelled vehicle forms a pallet support surface with upper surfaces of supporting rods standing from four corners of a main body. between支杆facing in direction of travel, provided the cross plate located below a predetermined height with respect to the pallet supporting surface, the one of the home position, Ho this one
Out of both sides of the self-propelled truck that has reached the
The home position and the end portion outward of the opposite side, the crossover plate working floor which is combined levels provided, toward the portion of the end outer side of the working floor on the other home position, on one of the home position When the self-propelled truck reaches ,
A pallet-based cargo handling device, comprising a gantry located between inner surfaces of supporting rods facing in a direction orthogonal to a running direction .