JPH09202404A - Refuse pushing-in device and refuse pushing-in method for refuse collecting vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To push-in refuse having elasticity into a refuse put-in box without causing return of the refuse. SOLUTION: A rotary plate 14 for scraping up refuse, and a push-in plate 16 for pushing the refuse scraped up by the rotary plate 14 toward the inside of a refuse storage box 6, are arranged-installed inside refuge put-in box 10. Adjacent to the front side of the advanced position of the push-in plate 16, a partition plate 18 capable of sliding in the vertical direction by means of a partition plate cylinder 40, is installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust-pushing device for a dust-collecting vehicle and a dust-pushing method for preventing dust that has been pushed into a dust storage box by a pushing plate from returning to the dust-feeding box side. Regarding

[0002]

2. Description of the Related Art A so-called rotary garbage collection vehicle that compresses dust and pushes it into a dust storage box by the cooperation of a rotary plate and a pushing plate disposed in the dust throwing box is widely used.
The dust input box is attached to the rear opening of the dust storage box mounted on the chassis behind the cabin so that it can be opened and closed.
When the dust storage box is full of dust, the dust input box is opened at a garbage disposal site and the dust is discharged from the rear opening of the dust storage box.

The rotating plate is arranged in the vicinity of the bottom of the dust throwing box with its rotating shaft being horizontal in the vehicle width direction. Further, the pushing plate is arranged above the rotating plate so as to be capable of reciprocating in the vehicle front-rear direction. Then, the dust that has been thrown into the box from the rear charging port of the dust throwing box is scraped forward and upward by the rotating plate, and once the rotating plate has rotated to the horizontal position, the rotating plate is once stopped and pushed in this state. The plate is moved forward and the dust scraped up and held on the upper surface of the rotary plate is pushed into the dust storage box. A discharge plate that is movable in the front-rear direction is arranged in the dust container, and the dust is compressed and pushed between the discharge plate and the pushing plate.

[0004]

Recently, the obligation to collect industrial waste has been strengthened by law, and in response to the tightening of regulations, it is necessary to increase the elasticity of industrial waste, especially plastic waste materials. The demand for collecting the dust that they have is increasing remarkably. As described above, the conventional rotary garbage collection vehicle compresses the dust between the push-in plate and the discharge plate.However, the dusty dust such as plastic is used exclusively or mixed with general garbage to remove dust. When pushing into the storage box, when pushing the push-in plate once to retract the next dust, the dust that was pushed into the dust storage box immediately before was pushed to the dust throwing box side by elastic restoring force. May come back. When the dust is returned in this way, it will not only hinder the next dust-pushing step, but also the compression rate or volume reduction rate of the dust in the dust storage box will decrease, and the amount of dust loaded will decrease.

An object of the present invention is to provide a dust-pushing device and a dust-pushing method for a dust-collecting vehicle that can push elastic dust into the dust-filling box without returning.

[0006]

Means for Solving the Problems To solve the above-mentioned problems, a dust-pushing device of the present invention is provided with a dust-powder box inside a dust-powder box which is openably and closably attached to a rear opening of a dust-pile storage box of a dust-collecting vehicle. In the dust-pushing device of the dust-collecting vehicle, in which a rotating plate for scraping the thrown dust to the rear opening height and a pushing plate for pushing the dust scraped up by the rotary plate toward the inside of the dust-collecting box are disposed, A partition plate that slides in the vertical direction is arranged adjacent to the front side of the forward position of the pushing plate.

When the push-in plate is retracted, the partition plate is closed to prevent the dust in the dust storage box from backing up.

Further, in the dust pushing method of the present invention, the pushing plate is moved forward with the partition plate closed, the dust between the pushing plate and the partition plate is pre-compressed, and then the partition plate is raised and pushed. The plate is moved forward to push the pre-compressed dust toward the inside of the dust storage box.

That is, the partition plate is used not only for preventing the dust from coming back, but also for the pre-compression of the dust in cooperation with the pushing plate.

In this case, by forming irregularities on the front wall of the pushing plate and the rear wall of the partition plate, the dust between the pushing plate and the partition plate is precompressed, and the irregularities are effective. Can be crushed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 (A) and 1 (B) show the external appearance of the rotary dust truck 2. As shown in FIG. 2 (A), a rectangular parallelepiped-shaped waste container 6 having a discharge plate 5 that can be moved back and forth by a telescopic cylinder 3 is disposed behind the cabin 4, and the rear opening of the waste container 6 is opened. A dust throwing box 10 is attached to 8. An upper end portion of the dust throwing box 10 is connected to an upper portion of a rear end of the dust storing box 6 by a hinge 12, and the dust throwing box 10 can be opened and closed vertically with the hinge 12 as a center.

Inside the dust throwing box 10, a rotary plate 14 and a pushing plate 16 are arranged as in the conventional case. The dust pushing device of the dust truck 2 according to the present embodiment is characterized in that a partition plate 18 is provided in addition to the rotating plate 14 and the pushing plate 16. The details will be described below.

The dust box 10 includes a pair of left and right side plates 10a.
And a top plate 10b connecting the upper ends of the side plates 10a.
And a bottom plate 10c connecting the lower ends of the side plates 10a. The bottom plate 10c is bent and formed in an arc shape so as to correspond to the locus of the tip of the rotary plate 14. Top plate 10
A horizontally long oblong dust entrance 20 is formed between the rear edge of b and the rear edge of the bottom plate 10c. The rotary plate 14 is
As shown in FIGS. 2A to 2C, a rotary shaft arranged near the bottom of the dust throwing box 10 and arranged in the width direction of the dust throwing box 10 (direction perpendicular to the plane of FIG. 2). The rotary shaft 22 is integrally attached to the rotary shaft 22. The end of the rotary shaft 22 is rotated by a hydraulic motor (not shown) disposed outside the side plate 10a of the dust throwing box 10. Normally, one hydraulic motor is connected to one end of the rotary shaft 22, but in the present embodiment, one hydraulic motor is connected to both ends of the rotary shaft 22 (not shown). By connecting the pair of hydraulic motors to the hydraulic power source so that they can be switched in series and in parallel, high-speed scraping by series connection is performed in the first half of the dust scraping process, and double speed is achieved by parallel connection in the latter half of the scraping process at low speed. It is designed to be picked up with the torque of. The series and parallel switching can be automatically switched depending on the rotational position of the rotary plate 14.

One of the side plates 10 of the dust throwing box 10
A hole 54 is formed in a as shown in FIG. 3 corresponding to the lower surface position of the rotary plate 14 that has risen to the horizontal position, and a lock pin 50 that can be retracted in the horizontal direction protrudes from this hole 54. The tip of the lock pin 50 is a tapered surface facing downward, and the rear end of the lock pin 50 is slidably housed in a cylindrical portion 52 integrally attached to the outer surface of the side plate 10a. A compression spring 56 is arranged in the tubular portion 52, and the compression pin 56 constantly urges the lock pin 50 inward of the side plate 10a. At the rear end of the lock pin 50, the lever 5
8 is connected, and the lock pin 50 can be retracted manually or automatically (by an electric signal, the lever 58 is tilted in the direction of the arrow by an electric signal).

Above the rotary plate 14 is shown in FIGS.
The pushing plate 16 is arranged as shown in FIG. This pushing plate 16
Both end portions of are integrated with the lower end portion of a swing arm 26 which is swingable in the front-rear direction about a swing shaft 24 pivotally supported by the side plate 10a at a position close to the inner surface of the side plate 10a of the dust throwing box 10. Are linked to. An intermediate portion of the swing arm 26 is connected to a piston rod of a push-in cylinder 30 by a connecting pin 28. The main body side of the pushing cylinder 30 is provided with a pivot pin 32 so as to form a side plate 10a of the dust throwing box 10.
It is supported almost horizontally on the inner surface.

Above the pushing plate 16, the left and right side plates 10a are provided.
A transverse wall 34 connecting the two is formed. This cross wall 3
The front edge of 4 extends to a position close to the rear opening 8 of the dust storage box 6, and the rear edge of the transverse wall 34 has an arcuate lower surface so as to correspond to the swing locus of the upper edge of the pushing plate 16. And extends to the center of the dust throwing box 10. The space between the transverse wall 34 and the rotary plate 14 that has been rotated up to the lower edge height of the rear opening 8 serves as a passage when dust in front of the push plate 16 is pushed into the dust storage box. I have to.

A notch 36 extending in the width direction of the dust throwing box 10 is formed in the middle of the transverse wall 34. Into the notch 36, a flat plate-like partition plate 18 having a sharpened lower end by oblique cutting is inserted so as to be slidable in the vertical direction. As shown in FIG. 4, a guide groove 38 is formed on the inner surface of the side plate 10a, and both side portions of the partition plate 18 are slidably fitted in the guide groove 38. The inside of the partition plate 18 has a hollow structure with an open upper end, and a pair of left and right partition plate cylinders 40 is built in this hollow part. The main body side upper end of the partition plate cylinder 40 is supported by the pivot pin 42 on the lower surface of the upper surface plate 10b of the dust throwing box 10, while the lower end part of the piston rod 40a of the partition plate cylinder 40 is
It is connected to the lower end of the partition plate 18 via a pin 44. The pushing / pulling direction of the partition plate cylinder 40, that is, the extending direction of the piston rod 40a is completely coincident with the sliding direction of the partition plate 18, whereby a strong pushing force or pulling force can be obtained in the so-called direct push / pull structure. It is designed to be used.

The refuse collecting vehicle 2 is constructed as described above, and the operation when the refuse collecting vehicle 2 pushes dust having a resilience such as plastic waste into the dust storing box 6 will be described. First, the partition plate cylinder 40 is driven to keep the partition plate 18 in a lowered state. And the dust throwing box 10
Dust is thrown in through the dust throwing port 20. The thrown dust collects at the bottom of the dust throwing box 10 as shown in FIG.

Next, the rotary plate 14 is rotated clockwise in FIG. 2, and when the rotary plate 14 rotates about 50 degrees, the pushing plate 16 automatically operates in the backward direction, and the pushing plate 16 has its lower end. The part is temporarily stopped in a state where the part is close to the position above the rotary shaft 22 of the rotary plate 14. On the other hand, the rotary plate 14 continues to rotate, and
As in (B), scrap dust upward. Rotating plate 14
Rotating plate 1 in the state of FIG.
4 is once stopped, and in this state, the partition plate cylinder 40 is driven to retract the partition plate 18 above the transverse wall 34.
When the rotary plate 14 rises, as shown in FIG. 3, the upper surface of the side edge portion of the rotary plate 14 presses the taper surface of the lock pin 50, and the lock pin 50 is pushed into the tubular portion 52 against the compression spring 56. When the rotary plate 14 is moved backward and passes the position of the lock pin 50, the lock pin 50 is projected to the original position by the compression spring 56. Therefore, the rotary plate 14 stopped at the horizontal position
The lock pin 50 comes into contact with the lower surface of the rotary plate 14 to prevent the rotary plate 14 from rotating in the opposite direction.

When dust is caught between the rotary plate 14 and the inner surface of the bottom plate 10c or the inner surface of the side plate 10a, the lock pin 50 is retracted and the rotary plate 14 is rotated in the reverse direction to remove the dust. Remove.

Next, as shown in FIG. 5D, the pushing cylinder 30 is driven to move the pushing plate 16 forward, and the dust scraped up and held on the upper surface of the rotary plate 14 is pushed into the dust throwing box 10. When the push-in plate 16 is moved to the forward end, the pressure in the dust container 6 increases, and as shown in FIG.
As shown in (E), the discharge plate 5 automatically retracts to the front side of the vehicle by a predetermined distance.

Next, as shown in FIG. 5 (F), the partition plate cylinder 40 is driven to lower the partition plate 18, and the dust pushing path between the transverse wall 34 and the lower edge of the opening 8 is closed. With the above, one cycle of the loading process is completed, the next dust is loaded from the dust loading port 20, the rotary plate 14 is rotated again, and the same operation as above is repeated.

Next, the operation of pushing dust with a particularly strong elastic force will be described. Dust having a particularly strong elastic force may not be sufficiently compressed even by the pushing operation described above. Therefore, the partition plate 18 is lowered to advance the pushing plate 16 in a state where the dust pushing path is closed, the dust is forcedly crushed between the partition plate 18 and the pushing plate 16, and then the partition plate 18 is pushed.
Is raised and the pushing plate 16 is further advanced. As a result, even a plastic waste material having a particularly strong resilience is strongly crushed and reduced in volume in the narrow space between the partition plate 18 and the pushing plate 16, so that the dust storage capacity is significantly improved. If the dust cannot be crushed sufficiently by moving the pushing plate 16 forward once, the pushing plate 16 may be moved back and forth several times with the partition plate 18 closed. As a result, the dust that has not been sufficiently crushed is shaken back and forth, left and right, and vertically, and the volume is sufficiently crushed and reduced.

It is to be noted that the plate-shaped plastic waste material is particularly difficult to be crushed. However, as shown in FIG. 4, an unevenness 46 is formed on the front surface of the pushing plate 16 and a shape complementary to the unevenness is formed on the rear surface of the partition plate 18. By forming the unevenness 48, it is possible to easily crush and crush the plate-shaped plastic waste material between the unevennesses 46 and 48, and to significantly reduce the volume. Even if the unevenness is provided on either the pushing plate 16 or the partition plate 18, there is a certain crushing and crushing effect, but it is more effective if it is formed on both as shown in FIG. Needless to say, these irregularities 46 and 48 are shaped or arranged so as not to interfere with each other when the partition plate 18 moves up and down.

[0025]

As described above, according to the present invention, since the partition plate is arranged so that the dust that has been pushed into the dust storage box does not return, the pressure in the dust storage box decreases even when the push plate retracts. Therefore, it is possible to load dust with a high density and a high volume reduction rate, and a significant improvement in compression loading capacity can be expected. Further, since the dust can be pre-compressed or crushed between the pushing plate and the partition plate, even a plastic waste material with a particularly strong elastic force can be pushed into the dust container box with a significantly reduced volume. This can be expected to further improve the dust storage capacity in combination with the prevention of backflow due to.

[Brief description of drawings]

FIG. 1A is a plan view of a rotary dust truck, and FIG. 1B is a side view of the rotary dust truck.

2A is a side view of the dust storage box and the dust input box 10, FIG. 2B is a side view of the dust input box 10 when the pushing plate 16 is retracted, and FIG. 2C is a dust input when the pushing plate 16 is advanced. The side view of the box 10.

FIG. 3 is a side view of a rotary plate lock pin.

FIG. 4 is a horizontal sectional view of a pushing plate and a partition plate.

5 (A) to (F) are process diagrams sequentially illustrating a dust packing process.

[Explanation of symbols]

 2 Dust collection vehicle 6 Dust storage box 10 Dust input box 10a Side plate 10b Top plate 10c Bottom plate 14 Rotating plate 16 Pushing plate 18 Partition plate 20 Dust input port 22 Rotating shaft 24 Swing shaft 26 Swing arm 30 Pushing cylinder 38 Guide groove 40 Partition plate cylinder 46,48 Concavo-convex 50 Lock pin

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Bunji Okubo 1-48 Jimmucho, Yao-shi, Osaka Morita Special Kiko Co., Ltd.

Claims (3)

[Claims] 1. A rotary plate for scraping up the dust thrown into the dust throwing box to the rear opening height in a dust throwing box which is openably and closably attached to a rear opening of the dust throwing box of the dust truck. In a dust pushing device of a dust collecting vehicle provided with a pushing plate for pushing the dust scraped up by the plate toward the inside of the dust storing box, in the up-down direction, adjacent to the forward side of the forward position of the pushing plate. A dust-pushing device for a dust-collecting vehicle having a sliding partition plate. 2. The dust pushing device for a dust collecting vehicle according to claim 1, wherein the pushing plate is moved forward with the partition plate closed to pre-compress the dust between the pushing plate and the partition plate. After that, the partition plate is raised, and the pushing plate is moved forward to push the pre-compressed dust toward the inside of the dust storage box to push the dust into the dust collection vehicle. 3. A front wall of the pushing plate and a rear wall of the partition plate are each formed with irregularities so that dust existing between the pushing plate and the partition plate is pre-compressed and crushed by the irregularities. Item 2. A method for pushing dust in a garbage truck according to item 2.