JPS6135016B2 - - 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 cargo is transported 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 kind of cargo during a round trip, but when loading different kinds of cargo, for example, cement,
When transporting animal feed on the way home, even after the cement has been discharged to the destination, cement is still attached to the inner surface and corners of the cargo box, so if the feed is loaded as is, cement will get into the feed. 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 problems and drawbacks and provides a cargo box that can improve transportation efficiency.The following embodiments will be described with reference to the drawings. It has a structure in which a cargo box 3 is mounted on the top so that it can be tilted backwards.

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 upper part of both sides walls 5, 5 is fixed. A rear sliding door 9 is erected on top of the erected fixed pillars 7, 7, and the left and right upper ends are supported so as to be rotatable rearward via shafts 8, 8, and the lower end of the rear sliding door 9 is attached to a cargo box 3. A lashing device 10 is used to release the lashing when the object is tilted.

Furthermore, the front wall 6, both side walls 5, 5, and the rear sliding door 9
An auxiliary front wall 11, auxiliary side walls 12, 12, and an auxiliary rear fan door 13 are provided along the inner surface of each of the auxiliary front wall 11, auxiliary side walls 12, 12, and auxiliary rear fan door 1.
3 to cover the inner surfaces of the front wall 6, both side walls 5, 5, and rear fan door 9. The auxiliary front wall 11 has approximately the same length as the inner surface of the auxiliary side walls 12, 12, the lower end is hinged 14 so as to be able to fall down on the floorboard 4, and both ends are made of an elastic material such as rubber. Seal members 15, 15 are fixed, and the seal members 15,
15 is the auxiliary side wall 12, 12 when the auxiliary front wall 11 is raised and lowered
It is designed to make sliding contact with the inner surface. The auxiliary side walls 12, 12 have approximately the same length as the length between the front wall 6 and the inner surface of the rear fan door 9, and their lower ends lie down at a position above the floor plate 4 by the thickness of the auxiliary front wall 11. The auxiliary side walls 12, 12 are hinged so as to cover the floorboard 4 when laid down, and a sealing member 1 made of an elastic material such as rubber is attached to the front and rear ends.
7... is fixed, and this sealing member 17... protects the front wall 6 and rear fan door 6 when the auxiliary side walls 12, 12 are raised and lowered.
It is designed to come in sliding contact with the inner surface of the The auxiliary rear fan door 13 has approximately the same length as the inner surface of the auxiliary side walls 12, 12, and its upper left and right ends are pivoted to the lower part of the fixed columns 7, 7 via shafts 18, 18 so as to be rotatable in the front and back direction. Seal members 19 made of an elastic material such as rubber are fixed to both ends and the lower end, and when the auxiliary rear fan door 13 is rotated, the seal members 19 are attached to the auxiliary side walls 12, 12 and the inner surface of the floorboard 4. It is designed to make a sliding contact. Reference numeral 20 denotes a locking device for rotating the auxiliary rear fan door 13 forward and fixing it at a position above the side walls 5, 5. The locking device 20 is located at a position slightly forward of the fixing columns 7, 7 at the upper part of the side walls 5, 5. Brackets 21, 21 installed vertically, and brackets 21, 21
It consists of holes 22, 22 and locking pins 23, 23 inserted into holes (not shown) on the side of the auxiliary rear fan door 13.

The present invention has the above-mentioned structure. Next, the operation will be explained. First, when loading cement, the second
The auxiliary front wall 11, the auxiliary side walls 12, 12, and the auxiliary rear fan door 13 are erected as shown by the solid lines in the figure and FIG. Keep it covered. When discharging the loaded cement, the lashing device 10 is released by tilting the cargo box 3.
The rear sliding door 9 and the auxiliary rear sliding door 13 are rotated rearward by the weight of the cement, and the cement is discharged from the rear of the cargo box 3.

Next, when loading animal feed, which is a foreign material, first the auxiliary front wall 11 is laid down on the floorboard 4, and the auxiliary rear fan door 13 is rotated forward as shown in the dashed line in FIGS. 2 and 3. After that, the auxiliary side walls 12, 12 are attached to the auxiliary front wall 1.
1, and the front wall 6, which had been covered until then,
The inner surfaces of the side walls 5, 5 and the rear fan door 9 are exposed, and the auxiliary side walls 11, the auxiliary side walls 12, 12,
The inner surface of the auxiliary rear fan door 13 and the floorboard 4 are hidden to prevent cement adhering to the inner surface of the auxiliary front wall 11 from entering the feed.

When discharging the loaded feed, the lashing device 10 is released by tilting the loading box 3, and the rear fan door 9 is rotated rearward by the weight of the feed, allowing the feed to be released from the rear of the loading box 3. be discharged.

Note that the cargo to be loaded is not limited to cement and feed.

As described above, in the present invention, the auxiliary front wall, the auxiliary side walls, and the auxiliary rear fan door are provided inside the front wall, the side walls, and the rear fan door so that they can be raised and lowered or rotated. By undulating or rotating, different types of materials can be loaded without mixing with each other, and the transport efficiency of the dump truck can be improved.

[Brief explanation of the drawing]

FIG. 1 is an overall view of the dump truck, FIG. 2 is a sectional view of the cargo box, FIG. 3 is a sectional view taken along line AA in FIG. 2, and FIGS. 4 and 5 are partial perspective views. 3 is a cargo box, 4 is a floorboard, 5, 5 is a side wall, 6 is a front wall, 9 is a rear fan door, 11 is an auxiliary front wall, 12, 12
is an auxiliary side wall, and 13 is an auxiliary rear fan door.

Claims (1)

[Claims] 1. In a dump truck loading box that has a front wall and both side walls erected on the floorboard and a rear sliding door whose upper end is pivotally supported so as to be able to rotate rearward, the inside of the front wall and both side walls erects an auxiliary front wall and an auxiliary side wall whose lower ends are pivotally mounted on the floorboard so that they can be folded down, and an auxiliary rear fan door whose upper end is pivotally supported so as to be rotatable back and forth is provided inside the rear fan door. A loading box for loading foreign materials on a dump truck.