JP2812809B2 - Dump truck dump box structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo box dumping structure for a garbage truck, and more particularly to a method for separating and collecting garbage.
The present invention relates to a luggage box dumping structure of a litter collection vehicle that is optimally used for a litter collection vehicle in which two luggage boxes are respectively tiltably loaded on a chassis frame of a vehicle body.

[0002]

2. Description of the Related Art In order to separate and collect refuse, a second packing box (package box) is arranged and mounted between a driver's seat on a chassis frame of a vehicle body and a refuse storage box (packing box). Garbage trucks are known. In the case of this type of refuse collection vehicle, due to its structure, in order to discharge the refuse loaded in the small box, the refuse must be tilted to the side of the vehicle to discard the refuse therein.

Conventionally, as means for tilting the small box to the side of the vehicle, one side edge in the width direction of the small box is rotatably supported via a pin or the like.
A dump cylinder that extends in the width direction of the vehicle is stretched between the packing box and the chassis frame, and the dump cylinder is driven to extend, thereby tilting the packing box around a pin or the like. (See, for example, Japanese Utility Model Laid-Open No. 59-61104).

[0004]

However, when the packing box is tilted around the pins during dumping as in the above-mentioned conventional example, the packing box rotates about the pins whose position with respect to the vehicle is fixed. The problem is that not only is it easy for the garbage to be discharged to fall on the spot, but also the garbage can get caught in the chassis and the garbage cannot be discarded as desired at the dump location. There was a point.

SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a structure in which a rotation fulcrum of a packing box with respect to a vehicle at the time of dumping can be moved slightly upward in the direction of dumping with dumping.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a cargo box dumping structure for a dust collection vehicle for dumping a cargo box mounted on a chassis frame of a vehicle body so as to be tiltable. The bracket is projected downward from the bracket frame, and the upper and lower locations of the bracket and the two locations along the dumping direction of the packing box of the chassis frame are two.
The four links are rotatably connected with each other, and a four-bar rotating chain mechanism is constituted by the chassis frame, the bracket, and the two links.

[0007]

According to the present invention constructed as described above, the two links rotate around the connection point with the chassis frame at one end when the packing box is dumped, and the two links follow this rotation. The bracket connected to the other end of the vehicle moves while rotating slightly upward in the dumping direction with respect to the vehicle. Therefore, with the movement of the bracket, the cargo box in which the bracket is fixed to the lower surface is lifted upward while the dumping direction (outside the vehicle).
Can be moved.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 shows a side view of a refuse collection vehicle equipped with two packing boxes, that is, a refuse storage box 1 and a small packing box 2, so that the refuse can be separated and collected.

That is, a small box 2 is arranged and mounted on the chassis frame 5 between the driver's seat 3 and the dust container 1 having a tailgate 4 at the rear end. This small box 2
As described above, since both sides in the vehicle direction are sandwiched between the driver's seat 3 and the garbage storage box 1, in order to discard the refuse loaded in the inside of the small box 2 and dump it at a place or the like, the small box 2 must be removed. It is necessary to tilt the vehicle to the side when dumping.

Therefore, the present embodiment is provided with the following configuration in order to tilt the small box 2.

That is, on one side surface of the small box 2, a side flap 2a is supported at its upper end so as to be openable and closable, and a bracket 6 is provided on the lower surface of one side end of the bottom plate 2b. Is projected and fixed. This small box 2
Are mounted on the chassis frame 5. Between the chassis frame 5 and the bracket 6, two portions a and b of the chassis frame 2 along the width direction of the vehicle and the bracket 6 vertical positions c and d
The two links 7 and 8 are connected to each other at both ends so as to be freely rotatable. Thus, a four-node rotating chain mechanism is constituted by the chassis frame 5, the bracket 6, and the two links 7, 8, that is, the square abcd.

A dump cylinder 9 extending in the width direction of the vehicle is rotatable at one end to the chassis frame 5 via a pin 9a and at the other end to the lower surface of the bottom plate 2b of the small box 2 via a pin 9b. Are connected to each other.

Next, the tilting of the small box 2 during dumping in the above embodiment will be described.

At the time of dumping, the dump cylinder 9 is operated to extend it. Then, with the extension, the two links 7, 8 are connected to the connection points a,
b, the bracket 6 connected to the other ends of the two links 7 and 8 is rotated slightly upward with respect to the vehicle in the dumping direction (to the side of the vehicle). Moving. Accordingly, with the movement of the bracket 6, the packing box 2 having the bracket 6 fixed to the lower surface moves in the dumping direction (to the side of the vehicle) while being lifted upward.

As described above, the luggage box 2 is lifted up and moved to the side of the vehicle (in the direction of dumping) to be dumped, so that the litter dump locus is set to the outside of the vehicle. While making it easy to throw it away,
It is possible to prevent dust from being caught on the chassis.

Then, after the dump is completed, the dump cylinder 9 is contracted by operating the dump cylinder 9 in reverse to the above, thereby returning the small package 2 to the original position on the chassis frame 5.

Although the above-described embodiment shows an example in which the luggage box 2 is tilted, the dust storage box 1 is provided with the same configuration as described above. Can be moved to the rear of the vehicle in the dump direction while being lifted upward to cause dumping.

[0019]

Since the present invention has the above configuration,
The luggage box is moved to the outside of the vehicle (in the direction of the dump) while being lifted upward simultaneously with the dumping, whereby the litter trajectory at the time of discharging the dust can be set to the outside of the vehicle. Therefore, there is an effect that the driving of the vehicle such as a side approach can be facilitated, the dust can be easily dumped at a predetermined dumping site, and the dust can be prevented from being caught on the chassis.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing one embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a side view showing the entire refuse collection vehicle.

[Explanation of symbols]

 1 dust storage box (packing box) 2 small packing box (packing box) 5 chassis frame 6 bracket 7, 8 link 9 dump cylinder

──────────────────────────────────────────────────続 き Continued from the front page (56) References JP-A-59-18035 (JP, A) JP-A-59-61104 (JP, U) JP-A-61-159237 (JP, U) 144133 (JP, U) JP-A 4-26906 (JP, U) JP-A 61-96641 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65F 3/00-3 / 28 B60P 1/28

Claims (1)

(57) [Claims] In a luggage box dumping structure for a refuse collection vehicle for dumping a luggage box mounted on a chassis frame of a vehicle body so as to be tiltable, a bracket is projected downward from a lower surface of the luggage box and the bracket is provided with the bracket. The upper and lower two portions of the chassis frame and the two portions along the dumping direction of the packing box of the chassis frame are rotatably connected to each other by two links, and the chassis frame, the bracket and the two links link the four-bar linkage. A dump box structure for a garbage truck, comprising a mechanism.