JPH03235730A - Dump truck - Google Patents

Abstract

PURPOSE:To reload the dust in the hopper of a road sweeper into a vessel without changing the direction of a dump truck by installing a dust reloading means from the upper part of the cab of the dump truck to the front part of a vessel (load carrying platform). CONSTITUTION:The vessel 4 of a dump truck 1 which is used in combination with a road sweeper can be swung upward around a pin 12 by the operation of a cylinder 11. In this case, a dust reloading means 20 is installed from the upper part of the cab 3 of the dump truck 1 to the front part of the vessel 4. The reloading means 20 is constituted of a front bucket 21, swing supporting member 40 and a swing driving part 50, and the bucket 21 is equipped with a bottom plate 24 which is formed by forming the part to the front part ofthe vessel 4 into inclined form. The swing supporting part 40 is constituted by pivotally supporting the rear part of the bucket 21 on a supporting bracket 41 installed in the front part of the vessel 40, by a pin 43, and the swing driving part 50 is constituted of a pushing-up cylinder 52.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a dump truck with a tilting vessel.

BACKGROUND OF THE INVENTION Conventional dump trucks include a tilting vessel at the rear of the cab (driver's seat). Therefore, in combination with a road cleaning vehicle (for example, Special Publication No. 61-12044) that has a hopper for collecting dust at the rear of the vehicle body and lifts the hopper to discharge the dust inside the hopper to the rear of the vehicle body. hand,
When attempting to collect the dust into the vessel, the dump truck changes direction so that the rear or side of the vessel faces the hopper.

Problems to be Solved by the Invention As described above, changing the direction of a dump truck, for example on a highway where the direction of travel is fixed, not only obstructs the passage of other vehicles but is also extremely dangerous. It is. Further, even on general roads, there is an inconvenience that dust cannot be loaded unless the direction of the dump truck can be changed.

Means for Solving the Problems The present invention aims to solve the above-mentioned problems, and includes a method in which the dust discharged from the upper part of the cab is reloaded into the vessel from the upper part of the cab of the dump truck to the front part of the vessel. The present invention is characterized by being provided with a dust transfer means configured as follows.

A dump truck approaches the rear hopper of a road sweeping vehicle without changing its direction. The hopper of the road cleaning vehicle is lifted, and the dust contained therein is discharged to the upper part of the cab of the dust transfer means. The discharged dust is transferred into the vessel by the operation of the dust transfer means.

Embodiment As shown in FIG. 1, in a dump truck 1, 2 is a chassis, 3 is a cab, and 4 is a vessel.

Vessel 4 has front plate 5. It is constructed by combining left and right side plates 6 and a bottom plate 7, and a rear plate 8 is hinged at the top so that it can swing rearward. A locking pin 8a is provided on the rear plate 8 to project from side to side, and a hook 9 that engages with and disengages from the locking pin 8a is rotated by a cylinder 10. A dump cylinder 11 is connected between the lower part of the vessel 4 and the chassis 2, and the action of the dump cylinder 11 causes the vessel 4 to swing upward around a support pin 12. At the front of the vessel 4, a reinforcing member 13 is welded between the left and right side plates 6 as shown in FIG. It is reinforced for this purpose.

From the top of cab 3 to the front of vessel 4.

A dust transfer means 2o is provided. Dust transfer means 2o
is composed of a front packet 21 and its swing drive portion 40 and swing drive portion 50.

The front packet 21 is as shown in FIG.

A bottom plate 24 connects the left and right side plates 23 in the shape of a bow, and the bottom plate 24 is horizontal at the top of the cab 3 and has an inclined portion towards the front of the vessel 4, with its front end slightly forward of the front of the cab 3. It is in. As shown in FIG. 2, reinforcing channels 25 to 28 and a pair of vertical ribs 29 are welded to the lower surface of the bottom plate 24. In addition, there are reinforcing channels 30 to 3 on the sides of the left and right side plates 23, as shown in FIG.
2 is welded. At the lower end of the channel 32, a fifth
As shown in the figure, the bearing member 35 is welded together. A front plate 33 connecting the side plates 23 is welded to the front end of the bottom plate 24. As shown in FIG. 3, this front plate 33 is designed so as not to interfere with the main lift arm of the road cleaning vehicle, which will be described later.
There are notches on both sides. The width of the front end of the front packet 21 is the same as the width of the cab 3, and the front upper part of the vessel 4 of the front packet 21 has left and right side plates 2.
A triangular rubber sheet 34 is integrally provided inside the 3.
At the transshipment position A2, dust is prevented from spilling to the side from the vessel 4.

Next, the swing support portion 40 of the front packet 21 will be explained. At the front part of the vessel 4, support brackets 41 shown in FIG. 5 are welded to the inner sides of the left and right side plates 6, respectively. A reinforcing pipe material 42 is connected between the left and right pair of support brackets 41. A support plate 44 integrally having a pin 43 is screwed to the support bracket 41, and the bearing member 35 is rotatably fitted onto the pin 43.

Next, as shown in FIG. 4, the swing driving portion 50 has a bracket 51 welded to the middle of the left and right sides of the front plate 5 of the vessel 4 reinforced as described above. Between this bracket 51 and a pair of vertical ribs 29 on the lower surface of the front packet 21, one end of the main body of a push-up cylinder 52 and the tip of a piston rod are rotatably connected by connecting pins 53 and 54, respectively.

Next, as shown in FIG. 6, the rear discharge type road cleaning vehicle 60 sweeps up dust on the road surface with a main brush 61 and the like, and collects it in a hopper 62 at the rear of the two vehicles. In the lift mechanism for the hopper 62, one end of a main lift arm 65 swingably supported by a support portion 64 fixed to the vehicle body 63 is connected to the hopper 62 with a pin. Further, the other end of the rod 66 whose one end is supported by the support portion 64 is connected to the center of the intermediate link member 67 with a pin. The lower end of this intermediate link member 67 is connected to the vehicle body 63 via a link member 68.
The other end is connected to a piston rod 70a of a second cylinder 70 connected to the hopper 62 by a pin. Reference numeral 71 denotes an opening/closing lid hinged to the rear of the hopper 62, and the link mechanism lifts the hopper 62 from the recovery position C1 indicated by the two-dot chain line to the discharge position fitc2.

When the road cleaning vehicle 60 collects dust on the road surface and the hopper 62 is full, the dump truck 1 moves to the front packet 2.
1 in the horizontal receiving position A1, move the cab 3 to the hopper 62
Approach so that you are facing.

Then, the road cleaning vehicle 60 lifts the hopper 62 using the link mechanism, and discharges the dust in the hopper 62 to the upper part of the cab of the front packet 21, as shown in FIG.

The front end of the bottom plate 24 of the front packet 21 protrudes slightly forward from the front of the cab 3, so even if dust spills,
It will not fall onto cab 3. Hopper 62 and road cleaning vehicle 6
After returning to the recovery position lff1C1 of o, the piston rond of the push-up cylinder 52 is made to protrude, and the packet 21 to the fluorocarbon 1 is swung to the transshipment position A2 shown by the two-dot chain line in FIG. Then, the dust discharged to the upper part of the cab of the front packet 21 slides on the bottom plate 24 and falls to the front part of the vessel 4, completing the transfer of dust. Through this transshipment work, the dust is mainly transshipped to the front half of the vessel 40 in the longitudinal direction, but in order to move the dust in the front half to the rear of the vessel 4, the cylinder 10 is operated to move the hook 9 to the locking pin 8Q. What is necessary is to slightly tilt the vessel 4 rearward while the vessel 4 is in the engaged state. Incidentally, when discharging the dust inside the vessel 4, the vessel 4 is tilted significantly while the hook 9 and the locking pin 8a are disengaged by the operation of the cylinder 10.

Other examples of the dust transfer means 20 are shown in FIGS. 7 and 8. FIG. 7 shows a frame 83 that is a combination of left and right side plates 81 and a bottom plate 82, and is provided with a conveyor device 84. The conveyor device 84 transfers dust discharged to the top of the cab 3 into the vessel 4. A chute 93, which is a combination of left and right side plates 91 and a bottom plate 92, is provided from the top of the cab to the front of the vessel 4, so that the dust discharged to the top of the cab of the shoe I-93 is discharged into the vessel 4 by its own weight. This is what I did.

Effects of the Invention As described above, when the dump truck of the present invention is combined with a rear discharge type road cleaning vehicle, the structure is such that the dust discharged at the top of the cab is reloaded into the vessel from the top of the cab to the front of the vessel. Since we have provided a means for transferring dust, it is possible to transfer the dust in the hopper of a road cleaning vehicle into the vessel without changing the direction of the dump truck. can be done safely.

[Brief explanation of drawings]

Fig. 1 is a side view of the dump truck of the present invention, Fig. 2 is a plan view of the front packet, Fig. 3 is a front view of Fig. 2,
Fig. 4 is an enlarged sectional view taken along the line IV-IV in Fig. 1, Fig. 5 is an enlarged sectional view of the swinging support portion of the front packet, Fig. 6 is an explanatory diagram of the operation, and Fig. 7.8 shows other embodiments. be. 1... Dump truck, 3... Cab, 4... Vessel, cab, 2o... Dust transfer means, 21...
・Front packet

Claims (1)

[Claims] 1. A dump truck with a tilting vessel, characterized in that a dust transfer means is provided from the top of the cab of the dump truck to the front of the vessel to transfer dust discharged from the top of the cab into the vessel. truck.