JPH09315514A - Loading control device for refuse collector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To pack even refuse such as a pet bottle bulky with strong restoring force in a sufficiently compressed state into a refuse storage box by constituting in such a way as to shift to an up stroke after performing a compression stroke at least twice. SOLUTION: When a push-in plate 15 descends until a limit switch LS2 detects the descent completed position of a sliding plate 10, a second expansion cylinder is elongated by the demagnetization and magnetization of each solenoid, and the push-in plate 15 is oscillated forward to shift to a compression stroke. When a limit switch LS4 detects the compression completed position of the push-in plate 15, the present compression rotating speed N is compared with the preset compression set rotating speed (n). In case the compression rotating speed N is less than the compression set rotating speed (n), the second expansion cylinder is contracted to retreat by the demagnetization and magnetization of each solenoid and put in reversing operation until a limit switch LS3 detects the reverse position of the push-in plate 15, and upon detecting this, a shift to the compression stroke is performed again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loading control device for a garbage truck, and more particularly to a loading control device for a garbage truck suitable for collecting bulky and highly resilient dust such as plastic bottles. It is a thing.

[0002]

2. Description of the Related Art Conventionally, a dust throwing box is connected to a rear opening of a dust throwing box mounted on a vehicle body, and a dust loading device installed inside the dust throwing box is reversed by a loading control device. There is provided a refuse collection vehicle that collects refuse in a refuse storage box by operating as one cycle of descending, descending, compressing, and ascending.

[0003]

However, if the dust loading device simply performs one cycle of reversing, lowering, compressing, and raising as in the above-mentioned conventional technique, it is bulky and has a strong restoring force like a PET bottle. When collecting dust, the dust once compressed by the compression process will be restored by its restoring force, and it will be collected in this restored state, that is, in a state where it is not compressed sufficiently, and the collection efficiency in the dust storage box There was a problem that it decreased.

The present invention has been made in view of the above problems, and an object thereof is to collect dust, which is bulky and has a strong restoring force, such as a PET bottle, in a dust storage box in a sufficiently compressed state. Another object of the present invention is to provide a dual-purpose loading control device capable of performing a normal dust loading operation as well as the above-described dust loading. Still another object is to ensure the safety of work when repeating the compression process.

[0005]

A loading control device for a refuse collecting vehicle according to claim 1 of the present invention is connected to a refuse storage box mounted on a vehicle body and to a rear opening of the dust storage box. In the refuse collection vehicle, which is provided with a refuse throwing box equipped with a refuse loading device therein, and a loading control device for operating the dust loading device with one cycle of reversing, descending, compressing, and ascending, the loading control. The device is configured to repeat the compression step at least once before transitioning to the rising step.

According to a second aspect of the present invention, there is provided a loading control device for a refuse collecting vehicle, which is connected to a dust storage box mounted on a vehicle body and a rear opening of the dust storage box, and is internally provided with the dust loading device. Dust input box equipped with, 1 inversion, descending, compressing, ascending
A refuse collection vehicle provided with a loading control device for operating the above-mentioned dust loading device as a cycle, wherein the loading control device includes setting means for setting the number of repetitions of the compression process in the one cycle. Is.

According to a third aspect of the present invention, there is provided a loading control device for a refuse collecting vehicle, wherein the loading control device is provided with an informing means for informing an operator of this situation when the compression step is repeated. Is.

[0008]

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

FIG. 1 shows a schematic structure of a garbage truck.

In FIG. 1, reference numeral 1 is a garbage truck, and a vehicle body 2
The dust container 3 is placed on the top. This dust box 3
A dust throwing box 6 pivotally supported 5 is connected to the rear opening 4 of the dust throwing box 6, and the dust throwing box 6 is installed between the dust storing box 3 and the dust throwing box 6. Tilt cylinder 1
6 (see FIG. 2), a pivot 5 is provided for tilting.

Further, a charging port 7 is provided at the rear of the dust charging box 6.
Is opened, and a dust loading device A is installed inside thereof.

The dust loading device A is for compressing dust in the dust loading box 6 and packing it in the dust storage box 3. The structure of the dust loading device A will be described below.

On both side walls of the dust throwing box 6, guide groove members 8 made of grooved steel are laid from the upper front part toward the lower rear part also as a reinforcing frame.

Further, a sliding plate 10 which spreads to the full width thereof is accommodated in the dust throwing box 6, and guide rollers 11 are axially mounted on the upper and lower sides of both side edges of the sliding plate 10, respectively. Is slidably fitted along the inner wall of the guide groove member 8.

A pivot shaft 12 is pivotally supported on the upper rear surface of the sliding plate 10 via a bracket. The pivot shaft 12 extends along the rear surface of the guide groove member 9 and at the sliding distance of the sliding plate 10. It is adapted to protrude beyond the inside of the dust throwing box 6 beyond a not-shown notch formed in the side wall of the dust throwing box 6 in conformity.

A first telescopic cylinder 13 provided outside the dust throwing box 6 is provided between the pivot 12 protruding outward beyond the side wall of the dust throwing box 6 and the lower part of the dust throwing box 6, and the guide groove member 8 is provided. The slide plate 10 is reciprocally moved along the guide groove member 8 by the expansion and contraction operation of the first expansion and contraction cylinder 13 which is coupled to the upper side of the inclined direction and is displaced upward.

At the lower end of the sliding plate 10, a pushing plate 15 which spreads to the full width of the dust throwing box 6 is pivotally supported so that it can swing back and forth.

The tip of the pushing plate 15 is slightly bent forward. A second telescopic cylinder 14 is connected between a projecting piece 15a projecting from the rear surface of the pushing plate 15 and a pivot 12 provided on the upper rear surface of the sliding plate 10, and the telescopic operation of the second telescopic cylinder 14 is performed. Thus, the pushing plate 15 can be swung back and forth.

On the front surface of the pushing plate 15, there is provided a compression member 15b for compressing dust more strongly in the compression process described later.

On the other hand, below the bottom surface of the dust storage box 3, a fastening cylinder 17 pivotally supported at one end is arranged, and the other end is connected to a securing claw 18 pivotally supported at the bottom of the dust storage box 3. Has been done.

Then, the U-bolt 19 in which the lashing claw 18 is fixedly mounted on the front surface of the dust throwing box 6 through the normal lashing cylinder 17
And the dust throwing box 6 is fixed to the dust receiving box 3.

Further, in the dust container box 3, a discharge plate 2 is provided.
0 is arranged slidably in the front-back direction. Discharge plate 20
Is a plate state formed to have substantially the same width and vertical height as the dust storage box 3, and slides back and forth in the dust storage box 3 by the expansion and contraction operation of the discharge cylinder 21 (see FIG. 2).

FIG. 2 shows a hydraulic circuit.

In the figure, P is a hydraulic pump, T is an oil reservoir, V1 is an electromagnetic control valve for controlling the tilting cylinder 16 and the securing cylinder 17, and V2 is the first telescopic cylinder 1.
V3 is the second telescopic cylinder 14
, V4 is an electromagnetic control valve for controlling the discharge cylinder 21, and these electromagnetic control valves V1, V
2, V3 and V4 are solenoids SOLa for spool operation,
SOLb, SOLc, SOLd, SOLe, SOLf,
It has SOLg and SOLh.

Then, for the discharge line of the hydraulic pump P,
The electromagnetic control valves V1 and V2 and V3 and V4 are connected in parallel, and the electromagnetic control valves V2 and V3 are connected in series.

Further, V5 and V6 are normal tilt cylinders 1.
6 is an electromagnetic opening / closing valve that is biased to a position that allows pressure oil to flow out, that is, to reduce pressure, and to allow pressure oil to flow into the tilting cylinder 16, that is, to extend. Is equipped with.

Then, the tilting cylinder 16 is used to hold the lashing cylinder 17 when the lashing to the dust container 3 is released.
Is connected via a supply pipeline branching from a supply pipeline connected to the piston back pressure side oil chamber on the high pressure side.

In the dust loading apparatus A thus constructed, each of the limit switches LS1 to LS as shown in FIG.
4 are arranged. Here, LS1 is a limit switch that detects the rising end position of the sliding plate 10, LS2 is a limit switch that detects the falling end position of the sliding plate 10, and L
S3 is a limit switch that detects the reverse end position of the push plate 15, and LS4 is a limit switch that detects the compression end position of the push plate 15.

The detection signals of these limit switches LS1 to LS4 are supplied to the loading control device 3 having the CPU shown in FIG.
0 is input to the loading control device 30, and the solenoids SOLc to f are excited or demagnetized based on these detection signals to switch the electromagnetic control valves V2 and V3 to control the operation of the dust loading device A. . Further, operation signals from the operation switches are also input to the loading control device 30,
Based on these operation signals, the dust loading apparatus A is started to operate, and the dust throwing box 6 is tilted and the discharge plate 2 is moved.
It is also configured to control the zero discharge operation and the like.

Next, the control of the dust loading apparatus A by the loading control apparatus 30 will be described with reference to the flowchart of FIG.

First, in the end state of the dust raising process shown in FIG. 1, both the first and second telescopic cylinders 13 and 14 are extended, the sliding plate 10 is at the raising end position, and the limit switch LS1 is turned on. Is being detected.

In this state, dust is thrown into the dust throwing box 6 through the throwing port 7 and the start switch SW1 is turned on to start the loading operation described below (step S1). At this time, the compression setting number n (see step S9) from the compression number setting switch 40 is input to the loading control device 30.

Then, the solenoid SOLf is excited based on the start signal from the start switch SW1, the second retractable cylinder 14 is retracted and the pushing plate 15 is reversed, and the reverse end position is shown [see FIG. 6 (a)]. When the limit switch LS3 is detected, the limit switch LS3 detects this, and the solenoid SOLf is demagnetized by this detection, and the solenoid SOLd is excited, and the first expansion cylinder 13 is retracted and the pushing plate 15 is lowered (crushed). (Steps S2 to S4).

Next, in step S5, the limit switch L
The pressing plate 15 descends until S2 detects the lowering end position of the sliding plate 10 (see FIG. 6B), and when the limit switch LS2 detects this, the process proceeds to step S6, and the solenoid SOLd is demagnetized. Solenoid SOLe
Is excited to extend the second telescopic cylinder 14 to push the pushing plate 1
5 is rocked forward to shift to the compression step.

Then, in step S7, the limit switch LS4 moves the compression plate 15 to the compression end position [see FIG. 6 (c)].
Is detected, the value obtained by adding 1 to the previous compression number N ′ in step S8 is set as the current compression number N, and step S9 is performed.
Then, the current compression number N is compared with the preset compression setting number n, and if the compression number N is less than the compression setting number n, the process proceeds to step S10.

In step S10, the solenoid SOLe
Demagnetize and excite the solenoid SOLf to retract the second telescopic cylinder 14 to limit switch LS.
The reversing operation is performed until 3 detects the reversing end position of the pushing plate 15 (see FIG. 6D) (step S11).

When the limit switch LS3 detects the reverse end position of the pushing plate 15 in step S11, the process returns to step S6, and the compression process described above is performed again. Such an operation is repeated until the compression number N reaches the compression setting number n, and when the compression number N becomes equal to the compression setting number, the process proceeds to step S12.

In step S12, the solenoid SOLe
Is demagnetized, the solenoid SOLc is excited, the first expansion cylinder 14 is retracted to raise the pressing plate 15, the process moves to the raising process, and when the limit switch LS1 detects the raising end position (step S13), step S13.
At 14, the solenoid SOLc is demagnetized to end the series of loading operations described above (see FIGS. 6 (e) and 6 (f)).

In this way, after the compression process is repeated a preset number of times, the process is moved to the ascending process, so that the dust storage box 3 can be sufficiently compressed even for dust that is bulky and has a strong restoring force such as a PET bottle. And can be efficiently collected in the dust storage box 3. Further, when the dust is packed in the dust storage box 3, the discharge plate 20 in the dust storage box 3 is arranged at the rearmost position, and the dust packed by the dust loading device A presses the discharge plate 20. When the force reaches a predetermined value or more, the discharge cylinder 21 retracts to gradually move forward. Therefore, the dust can be compressed even by such a movement operation of the discharge plate 20.

When the compression process is repeated,
Notification buzzer 5 forming notification means from the loading control device 30
The command signal is output to 0 and the alarm buzzer 50 is sounded. Therefore, the operator can know that the compression process is repeated by the alarm buzzer 50, and the safety can be improved.

The notifying means is not limited to the alarm buzzer, but may be a visual alarm such as a voice alarm or an alarm lamp.

By setting the compression setting number n to 1,
A normal dust loading operation can be performed with one cycle of reversing, descending, compressing, and ascending.

Next, when the dust container 3 is full,
Move to dust discharge work. That is, after moving the refuse collection vehicle 1 to a refuse disposal site such as a relay station, the discharge switch S
By turning on W2, the loading controller excites the solenoid SOLa to extend the tilt cylinder 16,
The dust throwing box 6 is tilted upward about the pivot 5, and the rear part of the dust throwing box 3 is opened. After that, the solenoid SOLg is excited to extend the discharge cylinder 21, and the discharge plate 20 located in the front part of the dust storage box 3 is moved backward to discharge the dust stored in the dust storage box 3.

[0044]

As described above, according to the loading control apparatus for a refuse collecting vehicle according to the first aspect of the present invention, the compression step is performed at least twice, and then the rising step is performed. As a result, even bulky and highly resilient dust such as a PET bottle can be packed in the dust storage box 3 in a sufficiently compressed state, and can be efficiently collected in the dust storage box 3.

According to the loading control device for the refuse collecting vehicle of the second aspect, the setting means can appropriately set the number of times the compression process is performed, so that the loading control device can also be used for normal dust loading without repeating the compression process. Therefore, the versatility can be improved.

According to the loading control device of the refuse collecting vehicle of the third aspect, when the compression process is repeated, the notification means informs the operator of this situation, so that the operator can accurately grasp the situation. Therefore, the safety can be improved.

[Brief description of drawings]

FIG. 1 is a sectional side view showing a garbage truck.

FIG. 2 is a hydraulic circuit diagram.

FIG. 3 is a schematic view showing a mounting position of a limit switch provided in the loading device.

FIG. 4 is a block diagram showing a loading control device.

FIG. 5 is a flowchart showing a control procedure of the dust loading apparatus.

FIG. 6 is a schematic diagram illustrating an operating state of the dust loading apparatus.

[Explanation of symbols]

 1 Dust collection vehicle 2 Vehicle body 3 Dust storage box A Dust loading device 6 Dust input box 30 Loading control device 40 Compression number setting switch (setting means) 50 Notification buzzer (informing means)

Claims (3)

[Claims] 1. A refuse storage box mounted on a vehicle body, and a refuse throwing box connected to a rear opening of the dust receiving box and equipped with a dust loading apparatus inside, for reversing, lowering, compressing, and ascending. In a refuse collection vehicle equipped with a loading control device that operates the above-mentioned dust loading device as one cycle, the loading control device is configured to perform a compression process at least twice and then shift to a rising process. A loading control device for a garbage truck, which is characterized in that 2. A refuse storage box mounted on a vehicle body, and a refuse input box connected to a rear opening of the refuse storage box and equipped with a dust loading device inside, for reversing, lowering, compressing, and ascending. In a refuse collection vehicle equipped with a loading control device that operates the above-mentioned dust loading device as one cycle, the loading control device includes a setting means for setting the number of times of performing a compression process in the one cycle. A loading control device for a refuse collection vehicle. 3. The loading control device for a refuse collecting vehicle according to claim 1, wherein the loading control device includes an informing unit for informing a worker of this situation when the compression process is repeated.