JPS5943361B2 - Garbage return prevention device for garbage collection vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention includes a garbage storage box mounted on a vehicle frame, which is provided with a throwing box at the rear thereof, and a garbage pushing device installed in the throwing box crushes the garbage in the throwing box. This invention relates to a device for preventing garbage from returning to a garbage collection vehicle, which is compressed and pushed into a garbage storage box.

In general, a warped garbage pushing device periodically pushes compressed garbage into a garbage storage box by repeating a feeding stroke, a crushing stroke, a compression stroke, and a pushing stroke.
At the end of the pushing process, the pushed garbage may return to the input box due to the pushing reaction force, and the tendency for the garbage to break is particularly large when the garbage is coarse.

Therefore, the present invention has a simple structure that prevents the garbage that has been pushed into the garbage storage box from returning to the input box.
The object of the present invention is to obtain a device for preventing garbage from returning to a garbage collection vehicle.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a garbage storage box mounted on the frame of a garbage collection vehicle, and a loading box 2 whose front side is opened with a pivot 4 at the upper end of a rear opening 3 is attached. Connected for tilting.

The input box 2 has an input port 5 opened at the lower part of the wall, and a garbage storage chamber 6 is formed in the lower part of the inside of the input box 2. 8, and the rear half thereof is formed into a downwardly convex circular arc wall 9, and a discontinuous line 2 is formed at the connection part between the inclined wall 8 and the circular arc wall 9.
7 is formed.

At the front edge of the bottom wall 7, that is, at the front edge of the inclined wall 8, there is a protrusion 1 that protrudes above the floor surface 10 of the garbage storage box 1.
1 has been extended.

The protrusion 11 is reinforced by welding a reinforcing frame made of cross beams 12, 13, etc. to its front surface, and a sealing member 14 is bonded to the front surface of the cross beam 13.

On the other hand, the rear edge of the floor surface 10 of the garbage storage box 1 is slanted in a hollow manner, and the rear edge collides with the front surface of the protrusion 11, forming a recess a in front of the protrusion 11. be done.

The input box 2 is equipped with a garbage pushing device A that crushes and compresses the garbage and pushes it into the garbage storage box 1.

Next, to explain the structure of this device A, on both side walls of the input box 2, there are inclined walls 8 which are inclined downwardly toward the rear.
A guide groove 15 is bored substantially parallel to the guide groove 1.
The peripheral edge of 5 is reinforced by a reinforcing frame 16.

A sliding plate 1γ extending over the entire width of the input box 2 is housed, and sliding members 18 are fixed to both side edges of the sliding plate 170. It is slidably fitted into the guide groove 15.

Between the sliding member 18 of the sliding plate 17 and the lower part of the charging box 2, there is a first telescopic cylinder 20 disposed outside the charging box 2.
are connected along the inclination direction of the guide groove 15, and the sliding plate 17 can be reciprocated along the guide groove 15 by the telescopic operation of the first telescopic cylinder 20.

At the lower end of the sliding plate 17, a pushing plate 21 housed in the input box 2 is pivoted 22 so as to be swingable back and forth, and the tip of the pushing plate 21 is slightly bent forward.

A projecting piece 23 protruding from the back surface of the pushing plate 21 and the sliding plate 1
A second telescopic cylinder 24 is connected between the upper parts of the second telescopic cylinder 24, and by the telescopic operation of the second telescopic cylinder 24, the pushing plate 21 can be swung back and forth around the shaft support 22 portion.

A shielding plate 25 for blocking the front opening of the input box 2 extends along the guide groove 15 on the upper front half of the input box 2, and a shielding plate 25 is provided on the front surface of the shielding plate 25 to prevent the pushed garbage from falling. Several triangular protrusions 25' are protruded at intervals, and among these protrusions 25', the lowest one has a larger cross-sectional area than the remaining ones.

Note that 26 is a discharge plate that can be slid back and forth within the garbage storage box 1 by a drive device (not shown).

Next, to explain the operation of an embodiment of the present invention, the second telescopic cylinder 24 is contracted from the state shown in FIGS. After inverting to the horizontal position, the first telescopic cylinder 20 is contracted to enter the first compression process of the garbage, and the sliding plate 11 descends along the guide groove 15 and is connected thereto. The pushing plate 21 descends in parallel with its front surface maintained in a substantially horizontal state as shown in FIG. Capable of powerfully compressing and crushing input garbage.

Next, when the second telescopic cylinder 24 is extended from the state where the primary compression of the garbage has been completed, as shown by the dashed line A in FIG. rotates clockwise while rubbing the tip against the arcuate wall 9 until it reaches a vertical position where it is almost vertical, enters the second compression stroke, and the debris that has been primarily compressed and crushed in the previous stroke is transferred to the pushing plate 2.
1 and the inclined wall 8 at the bottom of the input box 2, that is, the secondary compression wall.

At this time, a discontinuous line 27 is formed at the connection between the inclined wall 8 and the arcuate wall 9.
is formed, so when compressing the dust, the upward escape of the dust is reduced (so that strong compression can be achieved), and the angle θ between the substantially vertical front surface of the pushing plate 21 and the inclined wall 8 is relatively small. Since they are smaller, it is possible to increase the compression rate of dust between them.

When the first telescopic cylinder 20 is extended from the end of the compression stroke shown in the chain line in FIG. The garbage compressed in the previous step can be pushed into the garbage storage box 1.

Incidentally, the garbage pushing process is completed in the state shown by the solid line in FIG. 2, and one cycle of the primary and secondary compression of the garbage and the pushing is completed.

By the way, the garbage pushed into the garbage storage box 1 by the pushing plate 21 as described above is removed from the garbage storage box 1 as shown in FIG.
It is possible to prevent the garbage from returning to the input box 2 by being locked in a recess a formed in front of the protrusion 11 of the bottom wall 7 that protrudes upward from the floor surface 10.

In this case, if the rear edge of the floor surface of the garbage storage box 10 is sloped as in the embodiment, the volume of the recess a formed in front of the protrusion 11 will be increased, and the above-mentioned garbage will not return. The preventive action is more effectively carried out.

As described above, according to the present invention, when the sliding plate 17 is lowered along the guide groove 15 while holding the pushing plate 21 in the horizontal position, the input garbage is removed between the pushing plate 21 and the arcuate wall 9. It can perform strong primary compression, and the sliding plate 1
When the pushing plate 21 is rotated around the shaft support 22 from the horizontal position to the vertical position while holding the push plate 7 in the lowest position, the dust after the primary compression is strongly removed between the pushing plate 21 and the inclined wall 8. Secondary compression can be performed, and the pressing plate 21
When the sliding plate 17 is raised along the guide groove 15 while being held in a vertical position, the pushing plate 21 forcefully pushes the secondary compressed garbage into the garbage storage box 1 along the inclined wall 8. As a result, in the input box 2,
The input garbage is subjected to strong and sufficient crushing and compression by primary and secondary compressions with different directions of action, and after its specific volume is significantly reduced, it is efficiently pushed into the garbage storage box 1. The input garbage can be forced into the garbage storage box 1 with high density and uniformity, and the garbage loading efficiency can be greatly improved.

In particular, since the discontinuous line 2r is formed at the connection part of the circular arc wall 9 and the inclined wall 8, which function as the secondary and secondary compression surfaces, respectively, the input garbage stored at the bottom of the input box 2 can be To ensure primary and secondary compression between the pushing plate 21 and the arcuate wall 9, and between the pushing plate 21 and the inclined wall 8, respectively, without causing leakage upward along the inclined wall 8 during secondary compression. a substantially perpendicular front surface of the pushing plate 21 which is capable of holding the pressing plate 21 in the vertical position when the secondary compression is completed;
Since the angle θ with the inclined wall 8 can be made relatively small and the front surface of the pushing plate 21 and the inclined wall 8 can be brought as close as possible, the secondary compression of the garbage between these surfaces can be made even stronger. At the same time, the space in the longitudinal direction of the input box 2, which corresponds to the operating amount of the pushing plate 21, can be kept relatively small, and the overhang of the vehicle will not be increased unnecessarily.

Furthermore, the group of garbage scooped up into the garbage storage box 1 is firmly and integrally retained as a single garbage compacted body by the strong secondary and secondary compression action of the pushing plate 210.
6 is in a substantially vertical position and its tip exceeds the upper end of the protrusion 11 to complete the pushing process, so that not only the lower end that has directly entered the recess a but also the entire garbage compactor is reliably placed in the garbage storage box 1. It is possible to prevent the garbage compacted body from returning to the input box 2 by holding it, and it is possible to improve the efficiency of pushing the garbage.

In addition, the lower end of the garbage compactor that has entered the recess a is moved forward by the next pushing step by the pushing plate 21, where a new garbage compactor is scooped up into the garbage storage box 1, and the garbage compactor on the front side is pushed forward. When it is pushed into the recess, it can be automatically and reliably pulled out from the recess a along with the pushed-in trash compactor, so that the recess a is prevented from becoming clogged with debris. Therefore, the protrusion 11 can always reliably achieve the desired effect, that is, the effect of preventing dust from returning.

Moreover, as mentioned above, when the secondary compression is completed, the pushing plate 21
Since the angle θ between the substantially vertical front surface and the inclined wall 8 can be made relatively small, the cross-sectional shape of the lower end of the garbage compactor can be formed to be relatively sharp, and therefore the recess at the lower end of the garbage compactor can be formed relatively sharply. The entry into and locking of the part a can be carried out easily and reliably, and the effect of preventing the dirt from returning by the protruding part 11 can be more reliably achieved.

[Brief explanation of drawings]

Figure 1 is a rear side view of a garbage collection vehicle equipped with the device of the present invention;
FIG. 2 is a longitudinal sectional side view of FIG. 1. a... Concavity, 1... Garbage storage box, 2.
...Insertion box, 3...Rear opening, 8...
... Slanted wall, 9 ... Arc wall, 10 ...
・-Floor surface, 11... Protrusion, 15...
Guide groove, 17...Sliding plate, 20...First telescopic cylinder, 21...Pushing plate, 22...
... Pivot support, 24 ... Second telescopic cylinder, 27
...Discontinuous line.

Claims (1)

[Claims] 1. A charging box 2 is connected to the rear opening 3 of the garbage storage box 1,
Guide grooves 15 inclined downward toward the rear are provided on both side walls of the input box 20.
A first telescopic cylinder 20 is provided between the sliding plate 17 and the bottom of the input box 2 to forcibly slide the sliding plate 17 therein. A pushing plate 21 is pivoted at the lower end of the sliding plate 17 so as to be rotatable back and forth. A second telescopic cylinder 24 for forcibly rotating about the shaft support 22 from a horizontal position to a substantially vertical vertical position is connected, and the second half of the bottom of the input box 2 is moved to the tip of the pushing plate 21. A discontinuous line 27 is formed at the connection portion between the arcuate wall 9 and the inclined wall 8. forming the arcuate wall 9 into a primary compression wall capable of primarily compressing the input garbage in the input box 2 in cooperation with the pushing plate 21 held in the horizontal position;
Further, each of the inclined walls 8 is constructed as a secondary compression wall capable of secondary compression of the input garbage after the secondary compression in cooperation with the pushing plate 21 which is rotated from the horizontal position to the vertical position, and At the front edge of the inclined wall 8, there is a floor surface 10 of the garbage storage box 10.
A protrusion 11 that protrudes upward is extended, a recess a is formed in front of the protrusion 11, and the push plate 2
1, when pushing the garbage into the garbage storage box 1, the pushing plate 2
A garbage backflow prevention device for a garbage collection vehicle, which is configured such that one tip thereof exceeds the upper end of the protruding portion 11. 2. The rear edge of the floor surface 10 of the garbage storage box 10 is inclined toward the rear, and the rear edge thereof is brought into contact with the front surface of the bottom wall 7 of the input box 2. Dust backflow prevention device.