JPH06227306A - Load conveyor system on truck rear body - Google Patents

Abstract

PURPOSE:To orderly arrange all the load to be fed onto a truck rear body and other collected loads and simultaneously to handle both taking-out and stowing operations easily and speedily at the time of collecting and delivering these loads such as an LP gas cylinder or the like. CONSTITUTION:This conveyor system is provided with a first conveyor 6 and a second conveyor 7 rotating and driving on a truck rear body 2 toward the front side from the rear side as horizontally paralleled with each other, and also it is provided with a transfer conveyor 8, reciprocating to both these first and second conveyors 6 and 7, in front of this first conveyor 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load carrying device for loading and unloading a large number of loads, such as gas cylinders, on a bed of a truck.

[0002]

2. Description of the Related Art A large number of cylinders for LP gas are loaded on trucks and circulated around the homes or businesses of gas users to be replaced with empty cylinders. After removing the cylinder from the truck and exchanging the actual cylinder and an empty cylinder, the empty cylinder is placed on the truck and collected. Then, even when loading or unloading the cylinder on a truck, a device called a power gate that can move the rear plate of the loading platform up and down is used.

[0003]

However, even if the above-mentioned lifting device is used, it is transported by human power into the loading platform, and it takes time to load the loading platform and it is also a heavy labor. If one or several real cylinders are unloaded and many empty cylinders are loaded and empty cylinders are loaded, they will be loaded in the marks of the previously unloaded real cylinders. When lowering
Since there is an empty cylinder on the unloading side of the loading platform, it is necessary to reload the actual cylinder and the empty cylinder.
There was a problem that it was extremely complicated, heavy labor was imposed, and it took time to deliver.

The present invention is to solve the above problems, and it is possible to easily load a large number of loads on a loading platform, and to distinguish the items to be arranged from the items to be collected,
It is an object to provide for the purpose of being able to install a load that should always be placed at a position where it is easy to take out.

[0005]

According to a first aspect of the present invention, there is provided a first means for rotatably driving a cargo bed from a rear side to a front side.
A conveyor and a second conveyor are arranged horizontally in parallel with each other, and a transfer conveyor is provided in front of the first conveyor so as to reciprocate between the first conveyor and the second conveyor and to be rotationally driven.

Further, it is preferable that the transfer conveyor is provided so as to be alternately connectable to the driving devices of the first and second conveyors via clutches.

[0007]

[Operation] Therefore, when loading luggage on the loading platform,
The second conveyor is driven to stack them in a state of being filled in the longitudinal direction, and one piece of luggage on one of the conveyors (specifically, the first conveyor) is transferred to and placed on the transfer conveyor. Leave a vacant space on one conveyor and place the transfer conveyor facing the other full second conveyor. Therefore, when unloading the cargo, the second conveyor on the full side is driven to unload the required number of cargoes from that conveyor, and at the same time the cargo on the transfer conveyor is transferred to the opposing second conveyor and becomes empty. Facing the first transfer conveyor,
By receiving one piece from the first conveyor and transferring it to the second conveyor, the collected loads can be sequentially loaded on the first conveyor, and the loads to be arranged can be sequentially carried out from the second conveyor.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS To explain the present invention in detail, in the truck 1 of the example shown in FIG. 1, the opening / closing plate on the rear side of the loading platform 2 is a power gate (not shown), and the floor of the loading platform 2 is It is a flat type of car, and the object to be transported is a cylinder for LP gas, and the cylinder is a gas filling factory, and an empty cylinder is automatically filled with gas, and the real cylinder 3 filled with the gas is automatically In this example, the conveyor 4 is configured so as to meet the condition that the conveyor 4 is installed so that the conveyor 4 is transported to the outlet. Moreover, at this factory, empty cylinders loaded on trucks are also transferred from the entrance of the factory to the automatic conveyor to be carried in. It should be noted that the power gate side of the luggage carrier 2 will be described as the rear and the cab 5 side will be described as the front.

Two sets of the first conveyor 6 and the second conveyor 7 are set on the floor of the loading platform 2, that is, four conveyors are provided from the rear to the front, and one cylinder is accommodated in the front part. Installed in parallel with each other with a length that leaves a sufficient space, and one transfer conveyor 8 is provided in front of the loading platform 2 for one set of conveyors across the first conveyor 6 and the second conveyor 7. Provided so that it can be reciprocated. The reason for providing the two sets of conveyors as described above is to provide the cylinders in this case, because they are provided from the relationship between the size of the cylinders and the size of the loading platform 2. For example, a drum tube having a large diameter. If so, one set is provided as a unit.

Since both the first conveyor 6 and the second conveyor 7 have the same structure, one of them will be described with reference to FIG.
As shown in Fig. 2, sprockets are provided at both ends of the support shafts 9 and 10 provided at the front and rear, endless chains are respectively hung on the front and rear sprockets, and a large number of slats are attached between the endless chains on both sides. The rotation driving device is arranged such that the front cylinder 11 extends in the front-rear direction from the longitudinal center.
And a rear cylinder 12 are provided, a rack 14 is projected from the tip of the piston rod 13 of each cylinder 11, 12, and a pinion 15 meshing with the rack 14 is fitted to the pivot 16 through a one-way clutch. Its axis 16
A rotation driving force is transmitted between the support shaft 9 and the support shaft 9 by a chain. Therefore, the front cylinder 11 is loaded onto the carrier 2
By driving toward the rear of the first conveyor 6
Is rotated forward, and by driving the rear cylinder 12 forward of the loading platform 2, the first conveyor 6 is rotated backward. The same applies to the case of the second conveyor 7.

The transfer conveyor 8 includes a first conveyor 6 and a second conveyor 6.
A rail 17 extending between the conveyors 7 and orthogonal to its longitudinal direction.
Like the first conveyor 6, the frame 18 running above is formed of an endless chain, slats, and the like, and the traveling device reciprocates the frame 18 with a horizontal cylinder 19 parallel to the rail 17. Further, the rotation driving device is provided with a rotating body 20 facing the transfer conveyor 8 via a chain from the first conveyor 6 and the second conveyor 7, and the rotating body 20 is rotated to the transfer conveyor 8 via a clutch 21. It is designed to communicate. A roller 22 that is connected to the transfer conveyor 8 is provided at the front ends of the first conveyor 6 and the second conveyor 7.

Further, when the sheets are conveyed in a full load, they are also stacked on the transfer conveyor 8 as shown in FIG. 1 and installed at the tip of the second conveyor 7. At that time, Since the front of the tip is blank and the cylinder may fall into the blank part, the blocking plate 23 that blocks the blank part,
It is preferable that the opening / closing plate on the side surface of the loading platform 2 be provided so as to be openable / closable by a hinge.

In order to automatically control the driving of the first conveyor 6, the second conveyor 7 and the transfer conveyor 8, a light-transmissive rear sensor 24 and a front sensor are provided at both ends of the first conveyor 6 and the second conveyor 7, respectively. The sensor 25 is provided and the transfer conveyor 8
Similarly, a light transmissive end sensor 26 is provided at the front end of the. Further, there are provided a truck side switch for rotating the first conveyor 6 and the second conveyor 7 forward and backward, and a factory side switch (both not shown) for activating the automatic conveyor 4 at the outlet of the factory. Also, the switch on the truck side and the switch on the factory side are provided so that they can be linked together. In addition, the automatic conveyor 4 of the factory is provided corresponding to the four conveyors provided on the loading platform 2.

Therefore, in order to load the real cylinders from the automatic conveyor 4 of the factory onto the loading platform 2, the transfer conveyor 8 is installed on the loading platform 2 so as to face the tip of the first conveyor 6 as a preparation. . After setting as described above, the conveyors 6 and 7 of the loading platform 2 are driven to rotate from the rear side to the front side, and the automatic conveyor 4 of the factory
Also, the actual cylinders are sequentially transferred onto the conveyors 6 and 7 of the loading platform 2. However, although the real cylinders are normally continuously transferred to each automatic conveyor 4 of the factory, there is a case where one or several real cylinders are accidentally missing. At that time, the light from the rear sensor 24 is transmitted through the row to stop the conveyors 6 and 7 of the loading platform 2 and the automatic conveyors 4 of the factory. Therefore, only the automatic conveyors in the missing rows are driven, and when all are in place, the automatic conveyors 4 and the conveyors 2 of the loading platform 2 of the factory are restarted.
Drive 7 As described above, all the automatic conveyors 4 in the factory are loaded by loading them all at once, and the front cylinders reach the front ends of the conveyors 6 and 7 and the front sensor 25 at that position detects them.
Then, the second conveyor 7 is stopped, and only the first conveyor 6 continues to be driven, and at the same time the opposing transfer conveyor 8 is also driven. Therefore, one cylinder on the first conveyor 6 is sent to the transfer conveyor 8. Then, the end sensor 26 of the transfer conveyor 8 detects the cylinder, stops the first conveyor 6, and then transfers the transfer conveyor 8 to the second conveyor 7 side.

After loading as described above, the space in front of the first conveyor 6 is sealed with a sealing plate 23, and then the cylinder is tightened with a rope so that the cylinder is pushed forward from the rear side to start the delivery. is there.

Next, when replacing the empty cylinder at the delivery destination, one or several real cylinders loaded on the loading platform 2 are unloaded and the empty cylinders are loaded. The procedure is to first remove the blocking plate 23. When the second conveyor 7 is rotated rearward with the opening / closing plate after the loading platform 2 tilted down, the rear end cylinder is transferred onto the opening / closing plate, and at the same time, the cylinder on the transfer conveyor 8 is transferred. Are transferred onto the second conveyor 7. The empty transfer conveyor 8 is then replaced by the first conveyor 6
Move horizontally to the front of the car and place the empty cylinder
By loading on the vacant rear end of the conveyor 6 and rotationally driving the first conveyor 6 forward, the cylinder at the tip of the first conveyor 6 is transferred to the transfer conveyor 8 and transferred. The conveyor 8 is moved to the original second conveyor 7 side, and like a square puzzle,
It is sequentially transferred from the first conveyor 6 to the second conveyor 7 via the transfer conveyor 8.

When all the empty cylinders have been collected and delivered as described above, they are returned to the gas filling factory and unloaded from the carry-in entrance of the factory. In that case, the transfer conveyor 8 was moved to the 1st conveyor 6 side, the 1st cylinder on the transfer conveyor 8 was transferred to the 1st conveyor 6 by driving in the direction which discharges the 1st conveyor 6. After that, the first and second conveyors 6 and 7 are simultaneously driven to be sent to the automatic conveyor in the factory.

The above-mentioned means of loading and unloading is one example, and the means is not limited to this means, but when collecting and delivering, either one of the first and second conveyors 6 and 7 is used. The cargo to be delivered from the line is sent out, and the collected load is loaded to the other line.

[0019]

According to the load carrying apparatus on the truck bed according to the present invention, a pair of conveyors are provided on the bed in parallel to each other from the rear to the front, and transfer is performed in front of both conveyors to reciprocate between the two conveyors. A conveyor is provided so that each conveyor can be driven forward and backward.By rotating a pair of parallel conveyors in the same direction, it is possible to load and unload packages at once. Become.

Further, at the time of delivery, the load to be delivered is taken out from one of the conveyors, the recovered load is placed on the end of the other conveyor, both conveyors are driven in the opposite direction, and further the transfer conveyor is used. Since it can be transferred to the other conveyor, the load to be delivered and the recovered load are circulated in an orderly manner between the two conveyors, and the load to be delivered can be set at a position where the loading platform can be easily taken. Since the mounting position is provided as a space in the rear part of the loading platform, loading and unloading work can be facilitated and speeded up.

If the transfer conveyors are arranged so as to alternately face one conveyor and be driven to rotate together with the conveyors, the transfer conveyors are rotated at the same speed in synchronization with each other to smoothly transfer the loaded load. In addition, there is no missing portion on the conveyor, and the initially loaded state can always be maintained.

[Brief description of drawings]

FIG. 1 is a plan view showing a load carrying device on a truck bed according to the present invention.

FIG. 2 is a plan view showing a partially cutaway structure of a conveyor of a conveyor according to the present invention.

[Explanation of symbols]

 1 truck 2 loading platform 6 first conveyor 7 second conveyor 8 transfer conveyor 21 clutch

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshihiko Tomita No. 30 Shimono, Oyama-cho, Kamishinkawa-gun, Toyama Prefecture Tateyama Machine Co., Ltd.

Claims (2)

[Claims] 1. A first conveyor (6) and a second conveyor (7) which are rotationally driven from the rear side to the front side on a loading platform (2).
Are arranged horizontally in parallel with each other, and a transfer conveyor (8) is provided in front of the first conveyor (6), which reciprocates to the first conveyor (6) and the second conveyor (7) and is rotationally driven. The cargo transportation device on the truck bed, which is characterized in that 2. The transfer conveyor (8) is provided so as to be alternately connectable to the driving devices of the first and second conveyors (6, 7) via a clutch (21). Cargo transport device on the truck bed described.