JPH10310209A - Truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a truck which enables heavy objects to be easily loaded into and unloaded from the luggage room of a van type automobile. SOLUTION: This truck includes an air compressor 6 and an air tank 7, which serve as compressed air supply sources driven by a power take-off 5 mounted in a vehicle body 4; a pallet 12 on which freight 13 to be loaded on the floor of the luggage room 3 of the vehicle body 4 is placed; an air caster 11 which is removably inserted into a lower-surface open space 12a provided in the pallet 12 and which serves to float and move horizontally the pallet 12 by supplying and exhausting compressed air; an air outlet 8 provided in the vehicle body 4 so that it is connected to the compressed air supply sources; and a flexible air supply pipe connecting the air outlet 8 to the air supply hole of the air caster 11. Therefore, heavy freight 13 can easily be loaded into and unloaded from the luggage room 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo truck, and more particularly, to a cargo truck for loading and unloading cargo into a cargo room provided in a vehicle body.

[0002]

2. Description of the Related Art Heretofore, as this type of freight carrier, a van type vehicle having a luggage compartment in a vehicle body and a wing type vehicle having both sides of the luggage compartment open upward have been known. this house,
A van-type vehicle opens a door at an opening provided at a rear end, carries a cargo into a luggage compartment, transports the cargo to a destination, and then unloads the cargo from the luggage compartment. Further, in a wing type vehicle, the side walls of the luggage compartment are opened upward to carry in / out the cargo from the side.

[0003]

However, when the cargo is relatively heavy, it takes a great deal of time to transport the cargo from the rear end opening of the luggage compartment to the front portion of the luggage compartment in a van type vehicle. This requires a lot of labor and time, places a heavy burden on the work vehicle, and lowers the work efficiency. On the other hand, in the wing type vehicle, the side wall portion is opened upward, and the cargo can be transported from the side of the vehicle, so that labor and time can be reduced as compared with the case of the van type vehicle. There is an advantage that you can. However, this type of wing-type vehicle is provided with a hydraulic cylinder and an opening / closing mechanism for opening and closing the side wall of the luggage compartment, so that the mechanism is complicated, the effective volume of the luggage compartment is reduced, and it is expensive. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has been improved in a van-type vehicle to easily carry in a heavy object.
An object of the present invention is to provide a freight carrier capable of carrying out.

[0005]

In order to achieve the above object, the present invention is directed to a compressed air supply source driven by a power take-out device mounted on a vehicle body and a compressed air supply source on a floor of a cargo room of the vehicle body. A pallet on which the cargo to be loaded is placed, and an air caster which is removably inserted into a lower surface opening space provided on the pallet, and which controls the floating and horizontal movement of the pallet by supplying and discharging compressed air, An air outlet provided in the vehicle body to be connected to the compressed air supply source, and a flexible air supply pipe connecting the air outlet and the air supply port of the air caster. Features.

According to the first aspect of the present invention, the air caster includes a pressing plate that contacts a lower surface of the pallet;
A ring-shaped elastic bag attached to the lower surface of the pressing plate, and formed to be able to supply compressed air to the elastic bag and a room formed by the elastic bag and the pressing plate ( Claim 2).

According to a third aspect of the present invention, there is provided a compressed air supply source driven by a power take-out device mounted on a vehicle body, a pallet for placing cargo loaded on a floor of a luggage compartment of the vehicle body, and a pallet for the pallet. An air caster mounted on the lower surface of the pallet and responsible for floating and horizontal movement of the pallet by supplying and discharging compressed air, an air outlet provided in the vehicle body for connection to the compressed air supply source, and an air outlet And a flexible air supply pipe connecting the air supply port of the air caster.

According to the third aspect of the present invention, the air caster includes a ring-shaped elastic bag attached to a lower surface of the pallet main body, and includes the elastic bag, the elastic bag, and the pallet main body. It is formed so as to be able to supply compressed air to the room to be compressed (claim 4).

In the present invention, it is preferable to provide a plurality of exhaust openings at the corners of the floor and side walls of the luggage compartment of the vehicle body. Also, at least the rear wheels of the vehicle body,
It is preferable that the vehicle is suspended from a vehicle body via a suspension, and the vehicle body is provided with an outrigger.

According to the cargo carrier of the present invention configured as described above, after the cargo is placed on the pallet, compressed air is supplied from the compressed air supply source into the air caster via the air supply pipe. The air casters are inflated to lift the pallets and cargo, and the compressed air is discharged from the air casters, so that there is little friction between the air casters and the floor of the cargo room. Layers form and pallets and cargo float horizontally. Therefore, heavy cargo can be carried into or out of the cargo room with a small force (claims 1 and 3).

Further, by providing a plurality of exhaust openings at the corners of the floor surface and side walls of the luggage compartment, the air discharged from the air casters in the luggage compartment can be quickly discharged to the outside from the exhaust openings located nearby. Can be discharged. Therefore, it is possible to prevent scattering of dust and influence on the loading operation due to the lifting of the air in the cargo room due to the exhaust gas (claim 5).

Further, by suspending at least a rear wheel of the vehicle body with the vehicle body via a suspension and providing the vehicle with an outrigger, the suspension expands and contracts with the expansion and contraction operation of the outrigger, and the luggage space of the luggage compartment is reduced. The height of the floor can be adjusted, and loading and unloading between the luggage compartment and the platform can be facilitated (claim 6).

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. ◎ First embodiment FIG. 1 is a side view showing an example of a freight carrier of the present invention, FIG.
FIG. 3 is a perspective view showing a part in cross section.

In the above-mentioned freight carrier, a vehicle body 4 is constituted by a chassis 2 having an operator's cab 1 and a box-shaped luggage compartment 3 mounted on the chassis 2. A power take-out device 5 is mounted on the vehicle body 4.
An air compressor 6 and an air tank 7, which are compressed air supply sources driven by (PTO), are provided. The air tank 7 and an air outlet 8 provided on the rear end side of the luggage compartment 3 are provided. Is connected to an air supply pipe 9.

An air caster 11 is connected to the air outlet 8 via a flexible air supply tube 10.
The cargo 13 is placed on the upper surface of the pallet 12 into which the air caster 11 is removably inserted into the lower opening space 12a so that the cargo 13 can be carried into or out of the cargo room 3. Has become.

In this case, as shown in FIGS. 3 and 4, the air caster 11 includes a pressing plate 14 formed of a rectangular honeycomb panel made of, for example, an aluminum alloy and capable of contacting the lower surface of the pallet 12. A ring-shaped elastic bag 15 attached to the lower surface of each of the four corners of the pressing plate 14, and the elastic bag 1 on the lower surface of the pressing plate 14.
5, a compressed air supply port 17 provided at one side end of the pressing plate 14, each elastic bag 15, and an inner periphery of the elastic bag 15. Compressed air is supplied to the side space 18 via a passage (not shown) (see FIG. 5).

The air caster 1 constructed as described above
The principle of 1 will be described with reference to FIG. 5. First, in a state where air is not supplied into the elastic bag 15,
As shown in FIG. 5A, the installation pad 16 is set on the floor 3 a of the luggage compartment 3. In this state, it is generated by the air compressor 6,
The compressed air stored in the air tank 7 is transferred to the elastic bag 1
When the elastic bag 15 is supplied into the inner space 5 and the inner peripheral side space 18, the elastic bag 15 expands and forms a seal with the floor 3a as shown in FIG. 5B. At this time, the pressing plate 14 contacts the lower surface of the pallet (not shown) to lift the pallet and the cargo placed on the pallet. Further, when compressed air is supplied to fill the inner peripheral space 18 with air, FIG.
As shown in (1), the air slowly and uniformly flows from between the elastic bag 15 and the floor 3a. In this state, the pallet floats horizontally on a thin friction-free air cushion, for example of thickness 0.07-0.1 mm. The pallet 12 and the cargo 1
3 can be moved horizontally. The floor 3a
Even if there is some swell in the cargo, there is little effect on the floating, so that the movement of the cargo 13 is not hindered.

On the other hand, a plurality of, for example, rectangular exhaust openings 19 are provided at appropriate corners of the floor surface 3a and the side wall 3b of the luggage compartment 3 (see FIGS. 1 and 2). In addition,
The exhaust opening 19 does not necessarily have to be rectangular, and may have an arbitrary shape such as an ellipse, a circle, or a triangle. By providing the exhaust openings 19 at the corners of the floor surface 3a and the side wall 3b of the luggage compartment 3 as described above, the air exhausted from the air casters 11 in the luggage compartment 3 as described above is exhausted. It can be quickly discharged to the outside through the use opening 19, and it is possible to prevent the dust from being scattered due to the air being swirled in the luggage compartment 3 due to the exhaustion or the like, and to affect the loading operation.

A rear wheel 22 of the vehicle body 4 is suspended via an air suspension 20, and a front wheel 21 and a rear wheel 2 are suspended.
Hydraulic outriggers 2 on both sides of chassis 2 between
The air suspension 20 expands and contracts in accordance with the expansion and contraction operation of the outrigger 23, so that the height of the floor surface 3a of the luggage compartment 3 can be adjusted. By suspending the rear wheel 22 via the air suspension 20 and providing the outrigger 23 between the rear wheel 22 and the front wheel 21 in this manner, the air suspension 20 is expanded and contracted with the expansion and contraction operation of the outrigger 23. The floor 3a of the cargo room 3 and the upper surface of the platform 24 can be made horizontal. Therefore, loading of the cargo 13 from the platform 24 to the cargo room 3 and unloading from the inside of the cargo room 3 to the platform 24 can be facilitated. It is sufficient that at least the rear wheel 22 is suspended via the air suspension 20, and the front wheel 21 may also be suspended via the air suspension 20.

Next, the unloading operation of the cargo will be described. In order to load the cargo 13 into the luggage compartment 3, first, the rear end of the vehicle body 4 is approached to the platform 24 and stopped, and then the outrigger 23 is operated to operate the floor 3 a of the luggage compartment 3 and the platform 24. Level with the top. Next, FIG.
As shown in FIG.
An air caster 11 is inserted into a, and the air supply tube 10 connected to the air outlet 8 is connected to the compressed air supply port 17 of the air pallet 12. When the on-off valve 10a provided on the air supply tube 10 is opened, the compressed air is supplied into the elastic bag 15 and the inner peripheral space 18 as described above, and the elastic bag 15 is expanded and pressed. The plate 14 contacts the lower surface of the pallet 12 and
When the air is further filled with air, as shown in FIG. 6B, the air uniformly flows from between the elastic bag 15 and the floor 3a, and the pallet 12 and the cargo 13 float in the horizontal direction. Therefore, the pallet 12 and the cargo 13 can be carried into the cargo room 3 with a small force.

After the cargo 13 is loaded, the air caster 1
When the supply of air to the pallet 12 is stopped, the air in the elastic bag 15 naturally escapes, and with the discharge of this air, the pressing plate 14 of the air caster 11 descends below the pallet 12 and contacts the pallet 12. The contact is released. In this state, the air caster 11 is taken out of the pallet 12, inserted into the lower surface opening space 12a of another pallet 12, and another cargo is carried into the cargo room 3 by the same operation as described above. Thereafter, similarly, the air casters 11 are inserted into the lower surface opening space 12a of the pallet 12 on which the cargo 13 is placed, and the predetermined cargo 13 is loaded (loaded) into the cargo room 3.

When unloading the cargo 13 in the luggage compartment 3, the air casters 11 are inserted into the lower opening space 12 a of the pallet 12 of the cargo 13 loaded on the rear end side of the luggage compartment 3, Unloading can be performed by the same operation as described above.

As described above, by forming the air casters 11 so as to be insertable into and removable from the lower surface opening space 12a of the pallet 12, one air caster 11 can be commonly used for a plurality of pallets 12. , Pallet 1
2 can be manufactured at low cost, and the pallet 12
Inventory management can be facilitated.

Second Embodiment In the first embodiment, the air casters 11 and the pallets 12 are formed separately, and the air casters 11 can be inserted into and removed from the pallets 12 to load the cargo 13. Although the case of unloading has been described, the air caster and the pallet may be integrally formed.

That is, as shown in FIGS. 7 and 8, a rectangular pallet body 14A formed of, for example, an aluminum alloy honeycomb panel, and the pallet body 1
A dedicated pallet 12A is formed by a ring-shaped elastic bag 15A attached to the lower surface of each of the four corners of the 4A and a mounting pad 16A protruding inward of the elastic bag 15A on the lower surface of the pallet body 14A. Configure. In this case, a compressed air supply port 17A is provided at an upper end of a compressed air supply member 17a attached to one side of the pallet body 14A, and the compressed air supply port 17A is provided with each of the elastic bags 15A and the elastic bags. Inner circumference space 18 of 15A
A is configured such that compressed air is supplied to A through a passage (not shown). By providing the compressed air supply member 17a on one side of the pallet body 14A and providing the compressed air supply port 17A at one upper end of the compressed air supply member 17a, the pallets 12A can be lined up without gaps. The space in the room 3 can be used effectively.

In the second embodiment, the other parts are the same as those in the first embodiment, and a description thereof will be omitted.

Next, the operation of the second embodiment will be described with reference to FIG. When loading cargo in the luggage compartment 3, as in the first embodiment, first, the rear end of the vehicle body 4 is stopped by approaching the platform 24, and then the outrigger 23 is operated to operate the luggage compartment. 3 and the upper surface of the platform 24 are made horizontal. Next, as shown in FIG. 9A, the cargo 13 is placed on the pallet body 14A of the pallet 12A, and the air supply tube 10 connected to the air outlet 8 is connected to the compressed air supply port 1 of the air pallet 12A.
Connect to 7A. Then, when the on-off valve 10a provided on the air supply tube 10 is opened, as described above, compressed air is supplied into the elastic bag 15A and the inner peripheral space 18A, and the elastic bag 15A expands and the pallet When the body 14A is pushed up and air is further filled, FIG.
As shown in (b), air flows uniformly between the elastic bag 15A and the floor 3a, and the pallet 12A and the cargo 1
3 floats horizontally. Therefore, the pallet 12A and the cargo 13 can be carried into the luggage compartment 3 with a small force.

After the cargo 13 is loaded, the compressed air supply port 1
After removing the air supply tube 10 from 7A, it is connected to the compressed air supply port 17A of another dedicated pallet 12A,
Another cargo is carried into the cargo room 3 by the same operation as described above. Similarly, compressed air is supplied into the elastic bag 15A and the inner peripheral space 18A of the air caster 11 of the pallet 12A on which the cargo 13 is placed, and the predetermined cargo 13 is loaded (loaded) into the cargo room 3. I do.

When unloading the cargo 13 in the luggage compartment 3, the elastic bag 15 A and the inner peripheral space 18 A of the air caster 11 of the pallet 12 A of the cargo 13 loaded on the rear end side of the luggage compartment 3. Compressed air is supplied to the inside, and unloading is performed by the same operation as described above.

The exclusive pallet 12A in which the air caster 11 and the pallet body 14A are integrally formed as described above.
Is used, compressed air may be supplied to the air casters 11 mounted on each pallet 12A.
The labor of the worker can be reduced, and the loading operation can be performed efficiently.

Other Embodiments In the above embodiment, the air casters 11 are disposed at the four corners of the rectangular pressing plate 14 or the pallet body 14A.
Although the number of air casters 11 has been described, the number of air casters 11 is not necessarily four, and one air caster may be used as long as it can cover the four corners of the rectangular pressing plate 14 or the pallet body 14A. Alternatively, four or more air casters, for example, one at each of four corners and the center may be used.

[0032]

As described above, the cargo carrier according to the present invention is configured as described above, and therefore the following excellent effects can be obtained.

1) According to the first aspect of the present invention, compressed air is supplied into the air caster to expand the air caster so that the pallet and the cargo float, and the air is discharged from the air caster by the supply of the compressed air. As a result, the pallet and the cargo can be floated horizontally by creating a frictionless air layer with a slight gap between the air caster and the floor of the luggage compartment, so that the pallet and the cargo can be weighted with less force. Cargo can be carried in or out of the luggage compartment. Further, since the air casters are formed so as to be insertable into and removable from the opening space on the lower surface of the pallet, one air caster can be commonly used for a plurality of pallets, so that the pallets can be manufactured at low cost. At the same time, inventory management of pallets can be facilitated.

2) According to the third aspect of the present invention, similarly to the first aspect of the present invention, compressed air is supplied into the air caster to expand the air caster so that the pallet and the cargo float, and further compressed. The air is discharged from the air casters by the supply of air, thereby causing a frictionless air layer with a slight gap between the air casters and the floor of the cargo room, thereby allowing the pallets and cargo to float horizontally. Therefore, heavy cargo can be carried into or out of the cargo room with a small force. In addition, by using a dedicated pallet in which the air caster and the pallet body are integrally formed, compressed air can be supplied to the air casters mounted on each pallet, further reducing the labor of the operator. While you can
Loading work can be performed efficiently.

3) According to the fifth aspect of the present invention, the exhaust opening is provided at the corner of the floor surface and the side wall of the luggage compartment.
Since the air discharged from the air casters in the cargo room can be quickly discharged to the outside from the exhaust opening located nearby, dust in addition to the above 1) and 2) can be generated due to the air being lifted up in the cargo room by the exhaust gas. Can be prevented from being scattered or having an effect on the loading operation.

4) According to the sixth aspect of the present invention, at least the rear wheel of the vehicle body is suspended between the vehicle body and the vehicle body via a suspension, and the vehicle body is provided with the outrigger. As the suspension expands and contracts and the height of the floor of the luggage compartment can be adjusted, loading and unloading of the luggage compartment and the platform can be facilitated in addition to the above 1) and 2). .

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of a freight carrier of the present invention.

FIG. 2 is a perspective view showing a part of the cargo carrier in a cross section.

FIG. 3 is a plan view of an air caster according to the first embodiment.

FIG. 4 is a side view of the air caster.

FIG. 5 is an explanatory view showing the principle of an air caster according to the present invention.

FIG. 6 is a schematic side view showing a state of transporting the cargo in the first embodiment.

FIG. 7 is a plan view showing a pallet and an air caster according to a second embodiment of the present invention.

FIG. 8 is a side view of FIG. 7;

FIG. 9 is a schematic side view showing a state of transporting cargo in the second embodiment.

[Explanation of symbols]

 Reference Signs List 3 loading room 3a floor surface 3b side wall 4 body 5 power take-out device 6 air compressor 7 air tank 8 air take-out 9 air supply pipe 10 air supply tube 11 air caster 12, 12A pallet 12a bottom opening space 13 cargo 14 press plate 14A pallet Main body 15, 15A Elastic bag 16, 16A Installation pad 17, 17A Compressed air supply port 18, 18A Inner peripheral space 19 Exhaust opening 20 Air suspension 22 Rear wheel 23 Outrigger 24 Platform

Claims (6)

[Claims] 1. A compressed air supply source driven by a power take-out device mounted on a vehicle body, a pallet on which cargo loaded on a floor of a luggage compartment of the vehicle body is mounted, and a lower opening space provided on the pallet. An air caster inserted removably into the pallet and responsible for floating and horizontal movement of the pallet by supplying and discharging compressed air; an air outlet provided in the vehicle body to be connected to the compressed air supply source; A freight carrier, comprising: a flexible air supply pipe connecting an air outlet and an air supply port of the air caster. 2. The freight carrier according to claim 1, wherein the air caster includes a pressing plate that contacts a lower surface of the pallet, and a ring-shaped elastic bag attached to a lower surface of the pressing plate. A cargo carrier, characterized in that it is formed so as to be able to supply compressed air into a room constituted by the elastic bag and the elastic bag and the pressing plate. 3. A compressed air supply source driven by a power take-out device mounted on a vehicle body, a pallet on which cargo loaded on a floor of a luggage compartment of the vehicle body is mounted, and a pallet mounted on a lower surface of the pallet. In addition, an air caster that controls the floating and horizontal movement of the pallet by supplying and discharging compressed air,
An air outlet provided in the vehicle body to be connected to the compressed air supply source, a flexible air supply pipe connecting the air outlet and the air supply port of the air caster,
A freight carrier, comprising: 4. The freight carrier according to claim 3, wherein the air caster includes a ring-shaped elastic bag attached to a lower surface of a pallet body, the elastic bag, the elastic bag, and the pallet. A freight carrier, characterized in that it is formed so as to be able to supply compressed air into a room formed by a main body. 5. The freight carrier according to claim 1, wherein a plurality of exhaust openings are provided in a corner of a floor surface and a side wall of the luggage compartment of the vehicle body. 6. The freight carrier according to claim 1, wherein at least a rear wheel of the vehicle body is suspended between the vehicle body and a vehicle body via a suspension, and the vehicle body is provided with an outrigger. Freight truck.