JPS6230945B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cargo box for loading foreign materials in a dump truck.

Generally, when transporting cargo using a dump truck or the like, after the cargo is transported to the destination, the vehicle is mostly driven empty on the way back. However, since it is extremely wasteful to travel empty, there is a growing trend to increase transport efficiency by loading some cargo on the way back.

However, with conventional dump truck boxes, there is no problem when loading the same type of cargo during a round trip, but when transporting different types of cargo, such as cement or coal on the way back, Even after being discharged to the ground, cement still adheres to the inner surface and corners of the shipping box, so if coal is loaded as is, cement will adhere to the coal.
If it is decided to clean the inside of the cargo box after discharging the cement in order to eliminate this problem, there is a drawback that a great deal of effort and time must be spent for this cleaning.

The present invention solves the above-mentioned drawbacks and provides a cargo box that can improve transportation efficiency.Examples will be described below with reference to the drawings. 1 is a dump truck;
The dump truck 1 has a structure in which a cargo box 3 is mounted on a vehicle body 2 so as to be tiltable backward.

Next, to explain the packing box 3 in detail, first, the side walls 5, 5 and the front wall 6 are erected and fixed on both sides and the front end of the floor board 4, and at the rear end of the floor board 4, The rear sliding door 8 is supported so as to be rotatable rearward through the provided brackets 7, 7, and the lower end of the rear sliding door 8 is secured by lashing devices 9, 9.

Further, a discharge port 10 extending diagonally backward is provided at the rear of the floor plate 4, and a discharge port cover 11 is attached to the tip of the discharge port 10.

Next, in the left and right side corners of the packing box 3, there are
A pair of shafts 12, 12 extending in the longitudinal direction are rotatably supported by brackets 13 erected on the floor plate 4.
A pair of flat deck plates 14, 14 having a size equivalent to dividing the surface area of 2 into left and right halves are fixed at one end.

Further, the front ends of the shafts 12, 12 are made to protrude from the front wall 6, and are connected to hydraulic cylinders 15, 15 provided on the front wall 6 via arms 16, 16 as shown in FIG. The deck plates 14, 14 can be rotated by the expansion and contraction operation of 15.

A front sheet 1 made of a flexible material such as a rubber sheet is provided between the pair of deck plates 14, 14 at the front and back.
7 and a rear seat 18 are provided, and both the seats 17,
The side edges and lower edges of 18 are fixed to the deck boards 14, the inner surface of 14, and the floor board 4.

Further, a discharge chute 19 extending diagonally rearward is provided at the bottom of the rear seat 18, and the discharge chute 19 is inserted into the discharge port 10 of the floor plate 4 as shown in FIG. 4, and is folded in half to close the discharge chute 19. It's becoming like that.

Furthermore, both the sheets 17 and 18 are connected to the deck plate 14,
14 is rotated downward, it can be folded and stored below the deck plates 14, 14, as shown in FIGS. 6 and 7.

Reference numerals 20 and 20 denote auxiliary sheets that shield the center of rotation of the deck plates 14, 14 and the floor plate 4. The auxiliary sheets 20, 20 extend in the longitudinal direction of the cargo box 3, and have one end connected to the deck plates 14, 14 and the other end. are fixed to the floorboards 4, respectively.

21, 21 are deck plates 14, 14 and side walls 5, 5
This is a seal member made of rubber or the like provided close to the center of rotation of the deck plates 14, 14 in order to seal between the deck plates 14 and 14.

Reference numeral 22 denotes a canopy opening/closing device that covers the upper part of the loading box 3.
3, 23, one end of the bending link 23, 23 is pivotally supported on the upper edge of the cargo box 3, and the other end is pivotally supported on one end of a rotating arm 24 pivotally supported in the center of the cargo box 3. A sheet 25 is stretched between the bending links 23, 23 at the positions, and the bending links 23, 23 are connected to the drive device 2.
By rotating the seat 25 at 6, the seat 25 can be opened and closed.

The present invention has the above-mentioned structure. Next, the operation will be explained. First, when transporting cement, the hydraulic cylinders 15, 15 on the front wall 6 of the cargo box are
The deck plates 14, 14 are rotated upward by being extended as shown by the solid lines in the figure.

When the deck plates 14, 14 rotate upward, the fourth
Front seat 17 and rear seat 1 as shown in the figure and FIG.
8 is extended, which causes a pair of deck boards 1
4, 14, the floor plate 4, and the front and rear seats 17, 18 form a storage chamber.

After the cement is stored in this storage chamber, it is transported to a predetermined discharge location.

At this time, the discharge chute 19 is folded in two to prevent cement from spilling. Also, between the deck boards 14, 14 and the floor board 4 is an auxiliary sheet 2.
It is shielded at 0.20.

Furthermore, the driving device 26 of the canopy opening/closing device 22 is operated to rotate the bending link 23, and the sheet 25 covers the upper part of the cargo box 3, thereby preventing rain from entering the storage room and preventing cement from spilling. It's becoming like that.

When arriving at the discharge location, the discharge lid 11 is opened, the discharge chute 19, which had been folded up to that point, is extended, and in this state the cargo box 3 is tilted as shown by the dashed line in FIG. The cement in the storage chamber is thereby discharged through the discharge chute 19. Next, when transporting coal on the way back, the front wall of the cargo box 6
The hydraulic cylinders 15, 15 are contracted as shown by the one-dot chain line in FIG. 2, and the deck plates 14, 14 are rotated downward. Then, the front and rear seats 17, 18, which had been extended until then, are folded up due to their flexibility and are stored below the deck plates 14, 14 as shown in FIGS. 6 and 7. As a result, a storage chamber is formed by the side walls 5, 5, the front wall 6, the rear fan door 8, and a pair of deck plates 14, 14. Coal is stored in this storage chamber and transported to a predetermined discharge location. do.

At this time, the canopy opening/closing device 22 is placed in a state in which the upper part of the cargo box 3 is covered in the same manner as in the case of cement to prevent the coal from spilling.

Further, the spaces between the deck plates 14, 14 and the side walls 5, 5 are sealed by seal members 21, 21.

When arriving at the discharge location, the securing devices 9, 9 of the rear sliding door 8 are removed, and in this state the cargo box 3 is tilted as shown by the dashed line in FIG.

As a result, the rear fan door 8 is opened by its own weight as shown by the dashed line in FIG. 6, and the coal is discharged from the rear of the cargo box 3.

In this way, different storage chambers can be formed depending on the type of load, so it is possible to reliably prevent coal and cement from being mixed together.

In addition, although coal and cement were demonstrated in the Example, it is not limited to this.

As described above, the present invention rotatably provides a pair of deck plates in a packing box, provides front and rear seats respectively between the pair of deck plates, and rotates the deck plates upward to open the front and rear seats and the pair of deck plates. A storage room is formed by the board and floorboard, and by rotating the deck board downward, different storage rooms can be formed by the side walls, the front wall, the rear fan door, and a pair of deck boards, so you can easily go back and forth. Since it is possible to load different types of items and reliably prevent their mixing, it is possible to maintain the quality of the loaded items and increase transportation efficiency.

[Brief explanation of the drawing]

Figure 1 is an overall view, Figure 2 is a front view of the packing box, Figure 3 is a rear view, Figure 4 is a sectional view taken along line AA in Figure 3, Figure 5 is a sectional view taken along line BB in Figure 4, and Figure 5 is a sectional view taken along line 4 in Figure 4. 6 and 7 are sectional views when the seat is stored, and FIG. 8 is a perspective view of the seat. 3 is a cargo box, 8 is a rear sliding door, 14 is a deck board, 1
7 is a front seat, and 18 is a rear seat.

Claims (1)

[Claims] 1. In a dump truck loading box that is tiltably mounted on the vehicle body and has a rear door at the rear, one end of a pair of left and right deck plates extending in the longitudinal direction of the loading box is provided at both lateral corners of the loading box. A front seat is provided at the front part between the pair of deck plates, and a rear part has a discharge chute that can extend out of the cargo box from a discharge port at the rear of the cargo box floor plate. A seat is provided, both seats are fixed to a pair of deck plates and a floor plate, and by rotating the pair of deck plates upward, the front and rear seats are extended, and by rotating the deck plate downward, the front and rear seats are attached to the deck plate. A loading box for loading foreign materials in a dump truck, which is stored below the container and has a deck plate forming the floor surface of the loading box.