JPH07165337A - Freight loading / unloading device and freight loading system for trucks - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] When loading or unloading cargo on a truck bed, the equipment for the truck is minimized and the reduction of the cargo loading weight is reduced, and the cargo loading and unloading device and the cargo loading system for the truck . [Constitution] The cargo loading / unloading device 35 is a belt in which a drive belt is placed on a pedestal 40 installed at a place connectable to a truck carrier, the roller train being movable up and down from the cargo installation surface and extending over the entire length of the roller train. Roller row with 1B
And the free roller rows 1A and 1C along the belt row with belt 1B, the cargo is stocked on the gantry 40, and the stocked cargo is driven by the belt with the roller row with belt 1B. It was configured to be continuously loaded or unloaded while moving on 1A and 1C. A transport vehicle such as a forklift 37 or a conveyor was connected, and the freight group was simultaneously pushed into the truck bed by the belt-equipped roller train 1B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo loading / unloading device for a truck and a cargo loading system used for loading / unloading cargo on a truck bed.

[0002]

2. Description of the Related Art Conventionally, for example, when loading cargo on a van-type truck bed, a forklift carries the cargo placed on a pallet to the truck bed entrance at the rear of the truck and manually moves the cargo to a predetermined position on the truck bed. A loading method called "hand-loading" is generally performed. This manual loading requires a great deal of labor and time to move the cargo within the truck bed.

[0003] Therefore, in order to save labor in the work inside the truck bed, in order to ensure smooth movement of the cargo on the cargo installation surface of the truck bed, when loading the cargo,
The free roller row is raised from the cargo installation surface,
A lift-up type roller conveyor that rolls cargo on the free roller row so that it can be loaded at a predetermined position in the loading platform, and when the truck is running, the free roller row drops from the cargo installation surface and is installed on the cargo installation surface. Are used (see Japanese Patent Laid-Open No. 64-53907).

Further, as disclosed in Japanese Utility Model Laid-Open No. 64-41451, a wide belt is arranged on the entire cargo installation surface of a van type truck carrier, and windings are provided at the front and rear of the carrier. The belt is slid on the cargo installation surface by a taker,
It has been proposed that the cargo carried on the belt is moved forward sequentially.

[0005]

However, although the former lift-up type roller conveyor can save a considerable amount of labor as compared with manual loading, it involves a person carrying a cargo by a forklift to the truck bed entrance and a person inside the truck bed. It requires two or more people, one who rolls up on the roller conveyor by going up to and pushing the cargo by hand. If you try to do these tasks by yourself, you will have to go up to the truck bed and push the cargo by hand after driving the forklift, which will take a considerable amount of time and effort to load the cargo. is there.

With the latter wide belt, when the cargo is loaded on the truck bed with a forklift, the cargo can be automatically moved in the cargo bed. However, when the wide belt drive device is included, the weight and volume of the entire apparatus is reduced. However, there is a problem that the cargo load is reduced accordingly.

Further, both the former and the latter are
After the truck enters, the cargo is transported to the truck bed one by one with a forklift, etc., and the loading time on the truck bed becomes longer, so the truck has to stop for a long time at the predetermined place, Also has a problem that a considerable space is required.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to shorten the load or the load of cargo on or from a truck bed, even by one person. Can work on time,
It is an object of the present invention to provide a cargo loading / unloading device and a cargo loading system for a truck in which the load on the truck is minimized to reduce the reduction in the cargo loading weight.

[0009]

A cargo loading / unloading apparatus according to the present invention comprises a pedestal installed at a place connectable to a truck carrier, a channel provided on the gantry, and a channel provided in the channel. And a roller tray having a large number of rollers, a roller row with a belt on which a drive belt is placed over the entire length of the roller row, and a free roller row along the roller row with the belt, and the cargo is mounted on the gantry. In addition to being stocked on top, the stocked cargo is continuously loaded or unloaded while being moved on the free roller train by driving a belt train of belts. In addition, it is preferable that this free roller row can also be lifted and lowered from the cargo installation surface, like the roller row with belt. In addition, the connection part for the truck of the mount is
It is preferably provided so as to be tiltable.

Further, in the cargo loading system of the present invention, a truck having a cargo bed on which a free roller row extending in the moving direction of the cargo is provided so as to be vertically movable from the cargo installation surface is connected to one end of the above apparatus, A carrier vehicle such as a forklift or a conveyor is connected to the other end of the device, and the cargo from the carrier vehicle or the conveyor such as a forklift is arranged as a cargo group on the above device at least one truck load equivalent. The freight group is pushed into the truck bed all at once by the belt-equipped roller train of the above apparatus.

[0011]

The truck loading platform is not directly connected to the forklift or the conveyor, but a loading / unloading device is interposed therebetween. At the time of loading, cargo for one truck is aligned on the device by a forklift or a conveyor and pushed into the cargo all at once. At the time of unloading, the cargo for one truck is transferred onto the device and is carried out from the device one by one by a forklift or a conveyor. The loading and unloading of cargo between the device and the forklift or the conveyor is performed according to the flow of cargo, and the loading and unloading of cargo between the truck bed and the device is carried out in a short time when the truck enters. In this way, as a conveyor that can store the cargo primarily and convey it as needed, it is preferable to have a row of rollers with belts that can move up and down and a row of free rollers arranged in parallel. When a row of attached rollers is raised and driven, it becomes a conveying device.

In order to take advantage of such a loading device, a system is also provided in which the truck bed also has a row of free rollers that can be raised and lowered, and is connected to one end and a forklift or a conveyor is connected to the other end. Then, the devices are simultaneously pushed into the truck bed. In addition, when the cargo is arranged on the device, it is repeated by loading one cargo on the forklift and sending one by the roller train with belt, and by the conveyor, lowering the roller train with belt to lower the cargo. This is done by sequentially pushing the cargo from the conveyor into the roller row.

[0013]

Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a top view of the loading / unloading apparatus of the present invention, FIG. 2 is a view showing a connecting portion of the loading / unloading apparatus to a truck bed, and FIG. 3 is X of FIG.
-X sectional view, FIG. 4 is an XX sectional view of FIG.
FIG. 5 is a sectional view of a belt driving portion.

In FIG. 1, 35 is a loading and unloading device, 36 is a truck connected to one end of the device 35, 37 is a forklift truck with respect to the other end of the device 35, by which the cargo 38 is trucked. It constitutes a loading system for loading onto a loading platform.

The device 35 comprises two sets of roller units U1 and U2 arranged on a stand 40 which is fixedly installed on the ground or the like. Each roller unit U1, U2
The central roller train 1B with belts and the free roller trains 1C and 1A on both sides thereof are arranged in parallel. A belt 15 is wound around the belt-equipped roller array 1B, and the roller array 1B is projected or sunk from the cargo installation surface by an elevating means by feeding or discharging compressed air into an airtight tubular body described later. A large number of rollers 8 are arranged in the free roller rows 1A and 1C, and the rollers 8 project or sink from the cargo installation surface by the elevating means by feeding or discharging compressed air into the airtight cylindrical body. The roller train with belt 1B and the free roller trains 1A and 1C are separated from each other in relation to the tilting upper surface portion described below, and the airtight cylindrical body is connected in series by a piping material such as a synthetic resin tube (not shown). ing. Further, the airtight cylindrical body is divided into appropriate lengths, and in the illustrated example, it is divided into front and rear portions near the center.

Then, the air pipe a for the airtight cylindrical body of the roller train with belt 1B and the free roller train 1A, 1C.
The air pipe b for the airtight tubular body is connected from the air control unit 30. This air control unit 30
Is controlled by the control box 29 so that compressed air having a desired pressure can be fed into or discharged from the factory air into the airtight cylindrical body. Further, stoppers 34, 34 that allow the cargo installation surface to move back and forth are provided on the fixed upper surface portion 41 in front of the tilting upper surface portion 43 on one end side of the pedestal 40.
Limit switches 33, 33 for detecting the presence of the cargo 38 are provided on the fixed upper surface portion 41 at the other end. These stoppers 34, 34 and limit switch 33,
33 is connected to the control box 29. The stoppers 34, 34 prevent the cargo 38 from sliding down from one end side, and the limit switches 33, 3
3 is for detecting the cargo 38 and advancing the cargo 38 forward.

Next, the structure of the gantry 40 will be described with reference to FIG. 2A is a side view of the tip of the gantry, and FIG. 2B is a front view of the tip of the gantry. The gantry 40 has a frame structure by welding, and includes the fixed upper surface portion 41 and the fixed upper surface portion 41.
And a tilting upper surface portion 43 connected to each other by a hinge 42. Then, on the fixed upper surface portion 41 and the tilting upper surface portion 43,
A roller train with belt 1B and free roller trains 1A and 1C are arranged. Further, the tilting upper surface portion 43 and the lower surface base portion 44
And two sets of turnbuckles 45 with the center line distributed between
Is provided. The turnbuckle 45 includes screw rods 48 and 49 pivotally supported by a shaft 46 and a shaft 47, a pipe 52 into which nut portions 50 and 51 screwed to the screw rods 48 and 49 are fitted, and a nut. It comprises a ratchet handle 53 for the part 50. The pipes 52 of the two sets of turnbuckles 45 can rotate synchronously with the chain 54 and the sprocket 55, and the ratchet handle 53 is provided on only one side.

The ratchet handle 53 can be switched in its rotating direction, and the nut parts 50 and 51 can be attached to the screw shaft 4.
Turn the buckle 45 when it is rotated in the direction of 8,49.
Is shortened, the tip of the tilting upper surface portion 43 is lowered, and when the screw shafts 48, 49 are rotated from the nut portions 50, 51, the turnbuckle 45 is lengthened and the tilting upper surface portion 4 is rotated.
The tip of 3 goes up. A cushion material 56 is preferably attached to the tip of the tilting upper surface 43. As described above, the reason why the tip of the gantry 40 can be tilted is that the height of the truck bed differs by about several tens of mm depending on the truck bed structure, and it is possible to match the height of the truck bed. There is. It is preferable that the tilting upper surface portion 43 is tilted downward, if possible, so that the height of the horizontal posture is 20 to 30 mm higher than the average height of the truck mount.

Next, the structure of the roller train with belt 1B will be described with reference to FIGS. In FIG. 3, a belt-equipped conveyor device 1B includes a channel 2, an airtight tubular body 3,
The roller tray 4, the belt 15, and the driving means 19 are the main parts. The upper surface A of the channel 2 is the cargo installation surface.

The channel 2 has a substantially concave cross section in which side plates 5a and 5b are vertically provided at both ends of a bottom plate 5c. In addition, stoppers 6a, 5a, 5b having different heights extending over the entire length of the channel 2 in the longitudinal direction are formed on the upper portions of the inner surfaces of the side plates 5a, 5b.
6b is projected. On the bottom plate 5c, the airtight cylindrical body 3 is arranged over its entire length.

The airtight tubular body 3 is flexible and foldable, and its both ends are closed by an appropriate means such as an adhesive or a clamp, and an air inlet / outlet is formed in a part thereof. . As a specific airtight tubular body 3, there is a tubular woven fabric of warp yarns and weft yarns provided with a soft rubber or synthetic resin lining on the inner surface. Further, it is preferable that the airtight tubular body 3 is covered with a woven fabric in which warp threads and weft threads are tubularly woven, and the airtight tubular body 4 is sufficiently protected from external damage and has excellent durability. It can be It should be noted that instead of the elevating means for expanding the airtight tubular body 4, an elevating means using a hydraulic booster may be used.

The roller tray 4 is composed of a main tray 10 and a sub tray 11. Main tray 10
Is a bottom plate 12c having side plates 12a and 12b vertically provided at both ends thereof and having a substantially concave cross-section. A large number of rollers 8 are rotatably arranged between the side plates 12a and 12b. The sub-tray 11 has side plates 13a and 13b on both ends of the bottom plate 13c.
A vertical cross section having a substantially concave shape, and the side plates 13a, 13
Locking portions 9a and 9b that engage with the stoppers 6a and 6b and restrict the rising position of the roller tray 4 are provided on the outer surface of b so as to project over the entire length of the sub-tray 11 in the longitudinal direction. Further, on the upper portions of the inner surfaces of the side plates 13a and 13b, shelves 1 having the same height extending over the entire length of the sub-tray 11 in the length direction.
4a and 14b are projected. And the main tray 1
0 is stored between the side plates 13a and 13b of the sub-tray 11 and placed on the shelves 14a and 14b.
The sub tray 11 and the sub tray 11 are detachable.

Main tray 10 of belt-equipped roller train 1B
The belt 15 is placed over the entire length in the length direction. The belt 15 is an endless belt, and the upper side 15a is placed on the main tray 10 and is wound around the turn rollers 16 and 17 at both ends.
The lower belt 15b is passed between the bottom plate 12c of the main tray 10 and the bottom plate 13c of the sub-tray 11, and is normally placed on the bottom plate 12c of the sub-tray 11.

In FIG. 4, reference numeral 19 denotes a driving means installed in the substantial center of the gantry 40. The driving means 19 mainly comprises a motor 20, a speed reducer 21, driving rollers 22 and 23, and a pressing roller 24. ing. Details of the driving means 19 will be described with reference to FIG. The motor 20 has a speed reducer 21, and the speed reducer 21 is attached to a base box 25. The base box 25 is fixed to an appropriate place on the vehicle body, and also serves as a gear box in which the output shafts 22a and 23a of the gears 27 and 28 that mesh with the gear 26 fitted into the output shaft 21a of the speed reducer 21 are projected. . The drive rollers 22 and 23 are attached to the output shafts 22a and 23a in a parallel cantilever state so that the belt 15 can be attached and detached easily from the side. The pressing roller 24 is a flange 24
It is attached with a and is placed between the drive rollers 22 and 23.

As shown in FIG. 4, the belt 15 includes the lower surface of one driving roller 22, the driving roller 22 and the pressing roller 2.
4 and is wound around the pressure roller 24, and between the other drive roller 23 and the pressure roller 24, the drive roller 2
It passes through the lower surface of 3 and is wound around the guide roller 18. Therefore, when the belt 15 is tensioned at the time of driving, the pressing roller 24 exerts a force pressing downward in FIG. 4, so that the belt 15 moves between the driving roller 22 and the pressing roller 24 and between the driving roller 23 and the pressing roller 24. It is gripped at two places between the main tray 10 without slipping.
It moves on the roller 8. The belt 15 can reciprocate on the rollers 8 of the main tray 10 by operating the rotation direction of the motor 20.

When compressed air is fed into the airtight tubular body 3 shown in FIG. 3, the airtight tubular body 3 expands as shown by the chain double-dashed line, and the belt placed on the roller tray 4 is inflated. 15
Rises, and the locking portions 9a, 9b engage the stoppers 6a, 6b of the channel 2 to determine the rising position. In this state, the belt 15 projects from the cargo installation surface A,
The belt 15 receives the load of the cargo on the cargo installation surface A, and the cargo moves as the belt 15 reciprocates. Further, by discharging the compressed air in the airtight tubular body 3 to the outside, the airtight tubular body 3 becomes a flat state, the belt 15 is located below the cargo installation surface A, and the load of the cargo is The belt 15 is no longer hooked.

As described above, in the case where the airtight tubular body 3 is used for raising and lowering the belt 15, it is necessary to regularly clean and perform maintenance, and the channel 2 to the roller tray 4 are required.
You can easily take it out without pulling it out in the longitudinal direction. That is, when the left high locking portion 9a side of the roller tray 4 in the lowered position is tilted like, the locking portion 9a can bypass the stopper 6a and can be taken out in the direction. Then, the inside of the channel 2 is cleaned.
Further, the reverse operation allows the roller tray 4 to be easily attached. The roller tray 4 is composed of a main tray 10 and a sub-tray 11, and the main tray 10 and the sub-tray 11 are detachable. Therefore, when the main tray 10 is taken out, the lower belt 15b is exposed, so that the endless belt 15 can be easily inspected and replaced.

Next, the structure of the free roller rows 1A and 1C provided along both sides of the belt-equipped roller row 1A will be described. The roller tray 4 is not divided into sub and main, but is integrated, a large diameter roller 8 is rotatably supported, and no belt is provided, which is the only difference from the roller rows with belts 1A and 1C. However, the others have the same structure. When compressed air is fed into the airtight tubular body 3, the airtight tubular body 3 expands as shown by the chain double-dashed line, the roller 8 pivotally supported by the roller tray 4 rises, and the locking portion 9a. , 9b are stoppers 6a, 6b for the channel 2
And the rising position is determined. In this state, the roller 8 projects from the cargo installation surface A, so that the load of the cargo on the cargo installation surface A is supported by the roller 8 and the cargo can be moved manually. Further, by discharging the compressed air in the airtight tubular body 3 to the outside, the airtight tubular body 3 becomes flat, the rollers 8 are located below the cargo installation surface A, and the cargo is installed by the cargo. It is placed on the surface A. In addition,
Also in the free roller rows 1A and 1C, instead of the raising / lowering means by the airtight tubular body 3, a raising / lowering means by a hydraulic booster can be used.

Particularly, when the belt-equipped roller train 1B and the free roller trains 1A and 1C on both sides are moved up and down by the airtight cylindrical member 3, it is sent to the airtight cylinder 3 of the free roller trains 1A and 1C on both sides. It is possible to change the compressed air pressure to enter,
It is possible to feed low-pressure compressed air into the airtight tubular body 3 of the central roller row with belt 1B from the airtight tubular bodies 3 of the free roller rows 1A and 1C on both sides. When the cargo is placed on the rollers in this state, the central roller row with belt 1B
The roller trays 4 of the above are slightly sunk downward, and the load of the cargo is taken up by the roller trays 4 of the free roller rows 1A and 1C on both sides. Therefore, the belt 15 is applied only with a load necessary for moving the cargo, and a large load is not applied excessively, so that the durability of the belt 15 is significantly improved.

Further, referring to FIG. 1, the structure of the truck carrier connected to one end of the above-mentioned device 35 will be described. Roller units U1 'and U2', which are composed of free roller trains 1A 'and 1C' having the same structure as the free roller trains 1A and 1C in the device 35, are arranged in parallel. Since a person rides on this platform, a floor is formed on the cargo installation surface A in FIG. Further, as the elevating means, it is preferable to use the airtight cylindrical body 3. Roller units U1 ', U
This is because 2'is lightweight, and the reduction in cargo load is reduced. Similarly to the device 35, the air pipe a'for the airtight tubular body is piped from the air control unit 30 ', and this air control unit 30' is controlled by the control box 29 ', and compressed air of a desired pressure is obtained. Can be fed into or discharged from the air source 31 'into the airtight cylindrical body 3.

A forklift 37 can carry a cargo 38 on the other end of the device 35. When the limit switch 33 detects the loaded cargo, the roller row with belt 1B is driven, and when the limit switch 33 is turned off, the driving of the roller row with belt 1B is stopped and one cargo is forwarded.

Next, loading of cargo using the above-mentioned device 35 will be described with reference to FIG. 6 (a) to 6 (c) show the cargo storing step, and FIG. 6 (d) shows the cargo loading step.

First, compressed air is fed into the airtight tubular body 3 in the roller train with belt 1B and the free roller trains 1A and 1C in FIG.
So that it sticks out. And the stopper 3 in FIG.
4 is also projected from the cargo installation surface. In this state,
As shown in FIG. 6A, the forklift 37 places the cargo 38 on a pallet (not shown) on the other end of the device 35. Then, the load of the cargo 38 is increased by the free roller row 1 in FIG.
The cargo 38 is supported by A and 1C, and the lower surface of the cargo 38 is pressed against the belt 15 of the roller train with belt 1B, so that the cargo 38 can be moved as the belt 15 is driven. Then, when the limit switch 33 detects the cargo 38, the belt 15 of FIG. 3 is driven by the timer after a predetermined time has elapsed, and the cargo 38 rolls on the free roller rows 1A and 1C of FIG. 3 due to the frictional force with the belt 15. Move forward.

When the limit switch 33 is turned off, the driving of the belt 15 shown in FIG. 3 is stopped and the state shown in FIG. 6 (b) is obtained. Forklift 37 loads cargo 38 into device 35
By repeating the operation of placing the cargo on the other end, the cargo 38 is sequentially stored on the device 35, and the cargo corresponding to one truck is stored in a state of hitting the stopper 34 as shown in FIG. 6C. A cargo group is formed. When a gap is formed between the cargoes 38, the compressed air of the airtight tubular body 3 of the roller row with belt 1B shown in FIG. 3 is discharged, and the belt 15 is lowered from the cargo installation surface A. In this state, the cargo 38 is shown in FIG.
Cargo 38 supported only by the free roller rows 1A, 1C
When the end of is pushed by the forklift, the cargo 38 easily slides on the free roller rows 1A and 1C to close the gap and form a dense cargo group. If there is time until loading on the truck bed, lowering the free roller rows 1A and 1C shown in FIG. 3 keeps the cargo 38 on the cargo installation surface A and does not slip and is safe. Is.

When the track 36 is inserted, it is connected to one end of the device 35 afterwards. At this time, the tilting upper surface portion 4 of FIG.
Adjust the inclination of 3 with the ratchet handle 53 to match the height of the truck bed. Then, the rollers 8 in the roller row with belt 1B and the free roller rows 1A and 1C in FIG.
And the belt 15 is made to project again from the cargo installation surface A. Further, the stopper 34 can also be retracted. Then, when the belt 15 of the roller train with belt 1B in FIG. 3 is driven,
The cargo 38 that has become a group remains as it is, and the tilting upper surface 4
After 3, it is pushed into the truck bed. Truck 3
As shown in FIG. 1, the carrier of 6 also has free roller rows 1A 'and 1C'.
And the grouped freight 38 enters the truck carrier as it is.

Although the above-mentioned operation is related to loading, if the positions of the limit switch 33 and the stopper 34 are reversed, the cargo is put out from the truck bed one by one by hand and the cargo is placed on the device 35. Belt 15
All of the cargo in the truck bed is temporarily driven by
It is also possible to store the cargo on the No. 5 and then carry the cargo to a desired place by the forklift 37.

FIG. 7 is a diagram showing another loading operation.
The difference from FIG. 7 is that the conveyor 39 is fixedly connected to the other end side of the device 35 instead of the forklift. In this case, the cargo 3 is rolled on the conveyor 39.
8 are sequentially sent, so the roller train with belt 1 in FIG.
When B is lowered and the free roller rows 1A and 1C are raised, the cargoes 38 are packed in the order in which they are sent, and the states shown in FIGS. 7A to 7C are automatically obtained. Then, when the truck 36 is retrofitted to one end of the device 35, the belt-equipped roller train 1B shown in FIG. 3 is lifted and the group of cargoes 38 are simultaneously pushed into the truck bed.

[0038]

According to the loading and unloading device of the present invention, a cargo for one or more trucks can be stored on a device installed so that it can be connected to a truck carrier, and the truck carrier is used in this device. Once connected, cargo can be sent by the roller train with belt of this device to be loaded into or unloaded from the truck, so even one person can carry out loading and unloading in a short time, which saves a great deal of labor. Can be achieved. Further, since the loading and unloading mechanism for the truck bed is separately provided outside the truck, the equipment for the truck bed is minimized like the free roller row, and the reduction of the cargo loading amount of the truck bed can be reduced. Furthermore, the roller train with belt of the loading and unloading device can be raised and lowered, and the roller train with belt is operated only by lifting during transport and lowered when storing, so most of the load on cargo is supported by the free roller train, The attached roller train need only be conveyed, and the drive capacity of the belt train with a belt can be relatively small, so that the structure can be made cheaper than a general-purpose conveyor.

If the free roller row of this loading / unloading device can also be moved up and down, the free roller row is also lowered when the cargo is stored, and movement of the cargo is completely blocked. Further, when the connection portion of the device to the truck bed is provided so as to be tiltable, cargoes can be smoothly loaded and unloaded even if the trucks have different heights.

In the loading system of the present invention, the truck bed is also provided with a free roller row that can be raised and lowered, and a forklift and a conveyor are combined to load the truck bed in a short time when the truck is loaded. By the time the truck gets in, the cargo for one truck can be stored on the loading device by a forklift or conveyor, so the waiting time for the truck is minimized and the cargo is stored in the loading device according to the flow of cargo. The distribution efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a top view of a loading / unloading device according to the present invention.

FIG. 2 is a diagram showing a connection portion of the loading / unloading device to a truck bed.

3 is a sectional view taken along line XX of FIG.

FIG. 4 is a sectional view taken along line XX of FIG.

FIG. 5 is a sectional view of a belt driving portion.

FIG. 6 is an operational diagram of the loading system of the present invention.

FIG. 7 is an operational view of another loading device of the present invention.

[Explanation of symbols]

 1B Roller row with belt 1A, 1C Free roller row 2 Channel 3 Airtight tubular body (elevating means) 4 Roller tray 8 Roller 15 Endless belt 19 Driving means 35 Loading / unloading device 40 Frame 41 Fixed upper surface 43 Tilt upper surface

Claims (5)

[Claims] 1. A gantry installed at a place connectable to a truck carrier, a channel arranged on the gantry, a roller tray having a large number of rollers arranged in the channel, and a roller of the roller. A belt placed over the entire length and a driving means for enabling the belt to reciprocate, and the elevating means provided between the channel and the roller tray moves the roller tray together with the belt in the channel. A row of rollers with a belt capable of moving up and down; a free roller row having a large number of free rollers arranged along the row of belts with a belt; storing cargo on the pedestal; The stocked cargo is continuously loaded or unloaded while being moved on the free roller train by driving the belt train of belts. Cargo loading and unloading device for trucks. 2. The free roller row has a channel arranged on the pedestal and a roller tray arranged in the channel and having a large number of rollers, and between the channel and the roller tray. 2. The cargo loading / unloading device for a truck according to claim 1, wherein said roller tray can be moved up and down in the channel by means of an elevating means installed in said channel. 3. A connection portion of the gantry with respect to the truck,
It is provided so that it can be tilted.
Cargo loading and unloading device for trucks described. 4. A truck having a loading platform in which a free roller row extending in the moving direction of the cargo is provided so as to be able to move up and down from a cargo installation surface, and loading on the loading platform having one end connectable to the loading platform entrance of the truck. A cargo loading system comprising a cargo loading device capable of loading a cargo equivalent amount or more, and a carrier such as a forklift for the other end of the device, wherein the device is a roller row that can be raised and lowered from a cargo installation surface. There is a roller train with a belt on which a drive belt is placed over the entire length of the roller train, and a free roller train along the roller train with the belt. Each of them is placed, and a group of cargos to be loaded on the truck bed is formed on the device by repeating the operation of moving the cargo forward by the roller row with the belt, and is connected to the tip of the device. A freight loading system for trucks in which freight groups are pushed all at once into the truck bed by the roller row with belts. 5. A truck having a loading platform in which a free roller row extending in the moving direction of the cargo is provided so as to be able to move up and down from a cargo installation surface, and loading on the loading platform having one end connectable to a loading port of the truck. A cargo loading system comprising a cargo loading device capable of loading a cargo equivalent amount or more and a conveyor connected to the other end of the device, wherein the device is a roller row that can be raised and lowered from a cargo installation surface. A roller row with a belt on which a drive belt is placed over the entire length of the roller row and a free roller row along the roller row with the belt, and the roller row with the belt is lowered in a state where the loading platform installation surface is lowered. Cargo is sequentially pushed from the conveyor to the other end of the device, the cargo is rolled on the free roller row to form a cargo group to be carried on the loading platform on the device, and the bell is attached to the truck loading platform connected to the tip of the device. A freight loading system for trucks that raises a row of rollers with a tortoise and further drives them to push the freight group all at once.