JPS585739Y2 - Transport vehicle equipped with soil leveling means - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ground leveling means for a transport vehicle equipped with a dumpable loading platform.

Figures 1 and 2 show a conventional transport vehicle equipped with a ground leveling device, which includes a crawler-type traveling body 1 equipped with a frame 2, and a crawler-type traveling body 1 that is placed on the rear side of the frame 2 to carry objects such as earth and sand. A loading platform 3 that can be loaded and dumped as shown by the two-dot chain line, a dump cylinder 4 for dumping the loading platform 3, and a driver's seat 5 provided on the front side of the frame 2. It is composed of an operating lever 6, a power source 1, an earth ejecting plate 8 and an earth ejecting cylinder 9, which are provided on the traveling body 1 below the power source 7.

The above-mentioned transport vehicle loads the material to be transported on the loading platform 3 and travels, dumps and removes the soil at a predetermined location, and if necessary pushes the discharged earth and sand up with the soil removal plate 8 to level the ground. Alternatively, they may simply level the ground without transporting earth and sand.

In the above-mentioned transport vehicle, when the earth and sand that it has discharged itself is pushed by the soil removal plate 8, the earth and sand discharged by the loading platform y and the soil removal direction of the soil removal plate 8 are exactly opposite, so that the traveling body is It has a drawback that the pushing up operation cannot be performed unless the earth removal plate 8 is directed toward the side of the earth that has been discharged by rotating the soil removal plate 1, that is, the lifting operation cannot be performed immediately after the earth is discharged.

In order to solve this drawback, the earth removal plate 8 is placed behind the traveling body 1.
In other words, it is conceivable to install it below the loading platform y, but in reality, the space below the loading platform y is narrow and not only is it difficult to install the earth removal plate, but even if it could be installed, the earth removal plate would not be able to move in the vertical direction. If the travel distance is too short, the soil removal function cannot be fully demonstrated.

Since all of the above-mentioned transport vehicles are equipped with earth removal plates, it is necessary to lower the minimum height of the traveling body from the ground, which poses a problem that hinders traveling.

In addition to the above-mentioned transport vehicle, a transport vehicle equipped with a ground leveling means as shown in FIG. 3 is also known.

That is, this transport vehicle does not have a rear door that opens when dumping the cargo platform, and the rear wall 3a of the portion corresponding to the rear door is inclined.
The earth and sand can be removed when the loading platform 3' is dumped, and an attachment for ground work is attached to the upper end of the rear wall 3a so that excavation, transportation, and earth removal can be performed.

However, the above-mentioned transport vehicle has the following drawbacks.

(1) Transport vehicles with crawler-type running bodies are often used particularly on soft ground, and naturally the soil they handle is highly sticky. The slope of the bottom surface of ' becomes gentle at the rear wall 3a, and dirt adheres to the rear wall 3a, resulting in poor soil removal performance.

(2) When leveling the ground with the loading platform 3' dumped, the rear wall 3a of the loading platform 3' has a small slope with respect to the ground, so the earth and sand to be leveled will have to be scooped up and disposed of. It is not suitable for land leveling work after embankment as it cannot be used for dozing like earthen slabs.

In view of the above-mentioned points, the present invention aims to provide a transport vehicle which can eliminate the drawbacks of the prior art by providing the rear door of the dumpable loading platform with a soil removal plate function.

In this invention, the outer wall of the rear door of the loading platform is made into a flat surface for dozing that is curved or bent in the vertical direction, so that when the loading platform is dumped with the rear door closed, the lowest part thereof can be located near the ground. In addition, the angle between the bottom part and the ground (cutting angle)
The present invention is characterized in that it is configured so that the cutting angle formed by the well-known earth removal plate and the ground can be the same as that of the cutting angle formed by the well-known earth removal plate and the ground, so that pushing up work can be performed by the rear door when the loading platform is in a dumped state.

Hereinafter, a specific example of the transport vehicle of the present invention will be explained based on FIGS. 4 to 6.

The transport vehicle of the present invention includes a crawler type traveling body 1 having a frame 2, a loading platform 3 installed on the rear side of the frame 2 and capable of dumping, and a dump cylinder 4 for dumping the loading platform 3.
, a driver's seat 5° operating lever 6 buttons provided on the front side of the frame 2, and a power source 7.

The rear door 10 provided on the loading platform 3 is curved (or bent) up and down, and its outer wall surface is formed into a flat surface 10a for dozing.

Further, when the rear door 10 is closed and the loading platform 3 is dumped, the lowermost part 10b can be located near the ground GL, and the angle α between the lowermost part 10b and the ground GL is (cutting angle) is the cutting angle (6
00 to 900).

The rear end 11a of the both side plates 11 of the enclosed loading platform 3, that is, the rear door 1
The end portion that contacts 0 is formed to match the shape of the rear door 10.

Since the transport vehicle of the present invention has the above-mentioned configuration, when the earth and sand loaded on the loading platform 3 are to be discharged to a predetermined location, the loading platform 3 is dumped and the traveling body 1 is moved little by little as shown in FIG. advance.

When the loading platform 3 is dumped, the rear door 10 opens in the same way as a normal rear door for a loading platform, so the earth and sand in the loading platform 3 is discharged along the bottom surface thereof.

Therefore, even sticky soil collected from soft ground can be reliably discharged.

Next, when leveling the embankment S of the discharged earth and sand, the loading platform 3
The traveling body 1 is moved backward in a dumped state, and the rear door 10 is used as an earth removal plate to perform pushing up.

That is, if the traveling body 1 is moved backwards with the loading platform 3 dumped, the rear door 10 will touch the loading platform side plates 11 when it comes into contact with the embankment S.
The loading platform 3 is brought into a closed state by contacting the rear end 11a of the loading platform 3.

At this time, the rear door 10 has its lowest part 10 as shown in FIG.
b is located near the ground G-L, and the angle (cutting angle) α formed with the ground G-L is an angle (60° to 90°) that can be pushed up.
), and it will have the same earth removal function as well-known earth removal land.

Therefore, if the traveling body 1 continues to move backward, the embankment S will be pushed up by the dossing plane 10a of the rear door 10.

Then, by changing the dump angle of the loading platform 3, the ground G-
The leveling height H from L can be adjusted arbitrarily.

In addition, in the above-mentioned transport vehicle, an O-view window covered with a wire mesh or the like is provided on a part of the bottom surface of the loading platform 3, for example, in order to ensure visibility during the ground leveling work.

Furthermore, by increasing the distance A between the rear end of the bottom surface of the loading platform 3 and the dump fulcrum P of the loading platform 3, it becomes possible to level the ground below the ground GL.

As described above, the present invention has the following effects.

(1) Since the rear door of the loading platform is provided with an earth removal plate function, the earth and sand discharged from the loading platform can be immediately pushed up, that is, earth removal and land leveling work can be performed continuously.

(2) Costs can be reduced because the earth removal plate and earth removal cylinder as single-function parts are not required.

(3) Since transportation and land leveling work can be performed continuously, earth removal and land leveling can be easily performed in narrow spaces.

(4) Since transportation, soil removal, and land leveling can be carried out continuously, it is suitable for short-term construction works such as road construction.

(5) Since the shape of the rear door with the earth removal plate function can be freely selected, it is possible to provide the optimum earth removal plate function.

[Brief explanation of drawings]

Figures 1 to 3 show a transport vehicle equipped with conventional soil leveling means, and Figure 1 is a front view of the transport vehicle equipped with a soil removal plate;
Fig. 2 is a plan view thereof, Fig. 3 is a front view of a transport vehicle without a soil removal plate, and Figs. 4 to 6 show a specific example of a transport vehicle equipped with the soil leveling means of the present invention. FIG. 4 is a front view thereof, FIG. 5 is a diagram showing a state in which the loading platform is being dumped and removing soil, and FIG. 6 is a diagram showing a state in which it is being pushed up. 1... Crawler type traveling body, 2... Frame, 3... Loading platform, 10... Rear door, 10
a... Flat surface for dozing, 10b... Lower part of the rear door, 11... Both sides of the loading platform, 11a...
Rear end of both side plates, α...Cutting angle, G-L...
·Ground.

Claims (1)

[Scope of utility model registration request] If you press a button on a transport vehicle equipped with a dumpable loading platform, and make the outer wall of the rear door of the loading platform into a dozing plane that curves or bends in the vertical direction, when the loading platform is dumped with the rear door closed, In addition to allowing the lower part of the door to be located close to the ground,
The construction is such that the angle (cutting angle) formed between the lower part of the door and the ground can be the same as the cutting angle formed between the well-known evacuation plate and the ground, so that pushing up work can be performed using the rear door when the loading platform is in a dumped state. A transport vehicle equipped with a means for leveling the ground.