JPS605104Y2 - power carrier - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a power transport vehicle in which a tiltable loading platform is attached to a traveling body.

FIG. 1 is a diagram showing a conventional power transport vehicle.

In the figure, 1 is a crawler-type traveling body, 2 is a frame of the traveling body 1, 3 is a driver's cab fixed to the frame 2, 4 is a cargo platform rotatably attached to the frame 2 via a bracket 5, and 6 is a frame 2 is a bracket fixed to it, 7 is a bracket fixed to a loading platform 4, and 8 is a bracket fixed to both ends of 6.
A cylinder 7 is connected with a pin, and 9 is a bracket fixed to the frame 2.

FIG. 2 is a diagram showing a state in which an earth removal plate is attached to the power carrier vehicle shown in FIG. 1.

In the figure, 10 is a mounting arm rotatably attached to the bracket 9, 11 is a soil removal plate fixed to the tip of the mounting arm 10, and 12 is a bracket fixed to the soil removal plate 11.

In this power transport vehicle, when transporting earth and sand, etc., load the earth and sand on the loading platform 4 in the state shown in Fig. 1, drive it to a predetermined position, and then tilt the loading platform 4 by operating the cylinder 8. and discharge soil, etc.

When leveling the ground with the discharged earth and sand, remove the cylinder 8 from the bracket 6.7, attach both ends of the cylinder 8 to the brackets 5 and 12, as shown in Fig. 2, and operate the cylinder 8. The earth removal plate 11 is positioned at a predetermined height, and the traveling body 1 is caused to travel.

However, in this power transport vehicle, the cylinder 8 also serves as a cylinder for tilting the loading platform 4 and a cylinder for raising and lowering the earth removal plate 11, so when moving from transport work to land leveling work, the shift from land leveling work to transport work is performed. In some cases, the cylinder 8 must be removed and installed.

Also, when removing and installing the cylinder 8,
The work is difficult because it needs to be carried out in a narrow space at the bottom of the cylinder 8, and the piping system of the cylinder 8 must also be removed and reinstalled.

Therefore, when carrying out the repetitive work of transporting earth and sand, removing the earth, and leveling the ground, work efficiency is significantly reduced.

Figure 6 shows another conventional power transport vehicle (U.S. 51-7981
7) is also a partially detailed view.

In the figure, 31 is a hydraulic cylinder whose both ends are pin-coupled to the frame 2 and the loading platform 4, 32 is a mounting arm rotatably attached to the frame 2, and 33 is a mounting arm 32.
The earth removal plate 34 is fixed to the tip of the earth removal plate 33, and the link 34 is a link whose both ends are connected by pins to the loading platform 4 and earth removal plate 33, respectively.
The pin coupling hole 35 on the loading platform 4 side is a long hole.

36 is a bracket provided on the frame 2, and 37 is a bracket provided on the mounting arm 32.

In this power transport vehicle, as shown by the solid line in FIG. 7, when the hydraulic cylinder 31 is extended with the earth removal plate 33 connected to the loading platform 4 via the link 34, the loading platform 4 is tilted. When the earth removal plate 33 is lowered and the hydraulic cylinder 31 is contracted, the earth removal plate 33 is raised.

Therefore, by operating the hydraulic cylinder 31, the height of the earth removal plate 33 can be adjusted.

Furthermore, as shown by the two-dot chain line in FIG. 7, if the loading platform 4 and the link 34 are disconnected and the brackets 36 and 37 are connected, the hydraulic cylinder 31 can be expanded and contracted, and the loading platform 4 can be tilted. Also, the earth removal plate 33 does not move up and down, and the height of the earth removal plate 33 can always be kept constant, so that there is no problem with traveling.

However, in this power transport vehicle, when the loading platform 4 is tilted, that is, when the front part of the loading platform 4 is raised, the earth removal plate 33 is lowered, so there is a risk that the driver may perform an erroneous operation, and the earth removal plate 33 is lowered. In order to enable the loading platform 4 to further tilt even after the lower surface of the pin 33 contacts the ground, it is necessary to make the pin coupling hole 35 a long hole, and machining the long hole is expensive in terms of cost.

In addition, when moving from land leveling work to transport work, it is necessary to disconnect the loading platform 4 and the link 34 and connect the bracket 36 and the bracket 37, which is a very troublesome work. If the link 34 is run in an unstable state with one end removed, the link 34 may become an obstacle to running, or the link 34 may be deformed or damaged.
It is conceivable to attach the link 34 to the mounting arm 32, but in this case, the task of moving from leveling work to transporting work becomes even more troublesome.

Furthermore, when moving from transportation work to land leveling work, the work is similarly very troublesome.

Furthermore, since it is necessary to provide brackets 36 and 37, the structure is complicated.

This idea was made to solve the above-mentioned problems, and there is no risk of the driver making a mistake in operation.
To provide a power transport vehicle that is easy to move to ground leveling work and has a simple structure.

In order to achieve this objective, in this invention, a mounting arm is rotatably attached to the traveling body, a soil removal plate is fixed to the tip of the mounting arm, and a length-adjustable link or a Both ends of the cylinder are connected with pins so that the loading platform is tilted and the earth removal plate is raised.

FIG. 3 is a diagram showing a power carrier according to this invention.

In the figure, 13 is a pin provided on the frame 2, 14 is a pin provided on the bracket 7, and 15 is a pin 13 on both ends.
．． 14 is a cylinder attached to the frame 2; 16 is a mounting arm rotatably attached to the frame 2 via a pin 17;
Reference numeral 8 denotes an ejecting plate fixed to the tip of the mounting arm 16, and the earth ejecting plate 18 is located on the loading platform 4 side.

19 is a bracket attached to the mounting arm 16; 20
is a pin provided on the bracket 19, and 21 is a link whose both ends are attached to the pins 14 and 20.

Further, 22 is a power source, 23 is an operating lever, and 24 is a driver's seat.

In order to transport earth and sand, remove earth, and level the ground with this power transport vehicle, first load earth and sand onto the loading platform 4 and drive it to a predetermined position, then extend the cylinder 15 to move the loading platform 4 to two points. Tilt as shown by the chain line to discharge earth and sand.

At this time, the attachment arm 16 is rotated by the link 21 to the position shown by the two-dot chain line, and the earth removal plate 18 is raised.

That is, as the loading platform 4 is tilted, the earth removal plate 18 is raised.

Next, by expanding and contracting the cylinder 15, the earth removal plate 1 is
Adjust the height h of the cutting edge in step 8.

That is, when the amount of soil is large, the height h is increased, and when the amount of soil is small, the height h is decreased.

Note that the amount of tilting of the loading platform 4 (height h
) may be controlled.

Thereafter, the traveling body 1 travels to perform pushing up and leveling work.

In addition, if the loading platform 4 is tilted during ground leveling work, the loading platform 4 may obstruct the driver's view.
As shown in the figure, if a wire mesh 29 is provided at the bottom of the loading platform 4 to form a viewing window, the driver's work will be facilitated.

FIG. 5 is a diagram showing a part of the power carrier according to this invention.

In the figure, 25 is an outer cylinder attached to the pin 14, 26 is an inner cylinder attached to the pin 20, and the inner cylinder 26 is inserted into the outer cylinder 25.

Two holes 27a and 27b are provided in the outer cylinder 25, and a female thread (not shown) is provided at the tip of the inner cylinder 26.

A bolt 28 is inserted into the hole 27b and screwed into the internal thread of the inner cylinder 26.

Since the length of the link 21 is adjustable in this way, the bolt 28 is normally inserted into the hole 27a, and when driving on uneven ground, by inserting the bolt 28 into the hole 27b, the soil can be removed. Since the height of the cutting edge of the plate 18 can be increased, running on uneven ground becomes smooth.

In the above-described embodiment, the attachment arm 16 is supported by the link 21, but a cylinder may be provided in place of the link 21 to facilitate smooth running on uneven ground.

Further, in the above embodiment, one end of the link 21 is attached to the pin 14 to which the piston rod of the cylinder 15 is attached, but it is also possible to provide another pin on the loading platform 4 and attach one end of the link 21 to that pin. good.

As explained above, in the power transport vehicle according to the present invention, when the loading platform is tilted, that is, when the front part of the loading platform is raised, the earth removal plate also rises, so there is no risk of the driver making an erroneous operation, and Since the lower surface of the discharge plate does not come into contact with the ground when the loading platform is tilted, there is no need to make the pin connection holes of the links and cylinders into elongated holes.

In addition, when moving to transportation work or ground leveling work, even if the area to be traveled is on uneven ground, all you need to do is adjust the length of the link or expand or contract the cylinder.
Since it is possible to move on to the ground leveling work very easily, it is possible to efficiently carry out the repetitive work of transporting earth and sand, removing the earth, and leveling the ground.

Furthermore, since there is no need to provide a bracket for holding the mounting arm as in the conventional case, the structure is simple.

In this way, the effects of this invention are remarkable.

[Brief explanation of the drawing]

Figure 1 is a diagram showing a conventional power carrier, Figure 2 is a diagram showing the power carrier shown in Figure 1 with an earth removal plate attached, and Figure 3 is a diagram showing the power carrier according to this invention. The figures shown, FIG. 4, and FIG. 5 are views showing a part of the power transport vehicle according to this invention, respectively. FIG. 6 is a diagram showing another conventional power transport vehicle, and FIG. 7 is a partially detailed diagram of the same. 1... Crawler type traveling body, 4... Loading platform, 14... Pin, 15... Cylinder,
16...Mounting arm, 17...Pin, 1
8... Earth removal plate, 20... Pin, 21.
·····Link.

Claims (1)

[Scope of utility model registration request] In a power transport vehicle having a tiltable loading platform attached to a running body, a mounting arm rotatably attached to the running body;
A soil removal plate fixed to the tip of the mounting arm and located on the loading platform side, and a length-adjustable link or cylinder having both ends pin-coupled to the mounting arm and the loading platform, A power transport vehicle characterized in that the earth removal plate is configured to rise as the earth is tilted.