JP2987396B2 - Garbage truck - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refuse collection vehicle provided with a discharge plate which can be moved back and forth by a discharge cylinder in a refuse storage box.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 3, a refuse collection vehicle has a refuse storage box 1 and a refuse input box 2 which is openably and closably mounted at a rear end opening thereof. The inserted dust is sequentially pushed into the storage box 1 by a dust pushing device (not shown) provided in the input box 2 and stored.

[0003] A discharge plate 3 movable back and forth is provided in the storage box 1.
And a discharge cylinder 4 for driving the discharge plate 3 is provided. When the refuse is loaded, the discharge plate 3 retreats gradually toward the front of the vehicle due to the pushing pressure of the refuse, and when the refuse is discharged, the input box 2 is raised. After the rear end opening of the storage box 1 is opened, the discharge plate 4 is moved forward by the discharge cylinder 4 at a stretch to the rear of the vehicle to discharge dust from the rear end opening of the storage box 1.

[0004]

However, in the conventional refuse collection vehicle, as shown in FIG. 3, the advancement of the discharge plate 3 is stopped at the rear end of the storage box 1, so that when the inside is cleaned, It was very difficult to discharge the dust entering between the front of the storage box 1 and the discharge plate 3 during loading. When the dust that has entered between the front part of the storage box 1 and the discharge plate 3 when the dust is loaded is left unattended, the dust sticks to the piston rod of the discharge cylinder 4 and the piston rod rusts, causing the discharge plate 3 to move back and forth. There are problems such as adverse effects.

[0005] Therefore, when the garbage is loaded, the front of the storage box 1 is discharged.
In order to discharge dust entering between the output plate 3 and the discharge plate 3, a device provided with a dust discharge opening / closing plate at a lower end portion has already been proposed. However, there is a problem that the dust is difficult to be discharged and the workability of the cleaning work is poor because the dust is hardly discharged.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object the purpose of loading dust in front of a storage box.
It is an object of the present invention to provide a refuse collection vehicle that can easily discharge refuse that has entered between a unit and a discharge plate .

[0007]

In order to achieve the above object, the present invention comprises a dust storage box and a dust insertion box which is openably and closably mounted at a rear end opening of the dust storage box. Inside the garbage storage box
In a refuse collection vehicle in which a delivery plate is disposed so as to be movable back and forth , the discharge plate can be projected from the rear end of the trash storage box by a predetermined dimension.
Provided, when garbage discharge, the discharge plate by a predetermined dimension protrudes from the rear end of the dust housing box, over the entire width of the discharge plate between the lower end and the rear end of the dust container box of the discharge plate dust Containment
An opening communicating between the front of the box and the discharge plate is formed.

Further, the present invention provides a first signal system for giving an opening / closing signal for opening / closing the dust box to the opening / closing drive means for the dust box, and a discharge plate for the front / rear driving means for the ejection plate. A second signal system for providing a forward / backward movement signal, a third signal system for providing a retreat signal to a forward / backward drive mechanism of the discharge plate in conjunction with a closing movement signal for the dust bin, and the third signal system. The timer provided in the middle of the system controls the application of the closing signal to the opening / closing drive means for the dust input box, and the inside of the dust storage box from a state in which the discharge plate protrudes from the rear end of the dust collection box by a certain dimension. And a delay means for delaying by a predetermined time required for retreating.

[0009]

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a refuse collection vehicle according to the present invention. Reference numeral 6 denotes a refuse storage box. Reference numeral 7 denotes a refuse insertion box which is openably and closably mounted at a rear end opening thereof. The dust is pushed into the storage box 6 sequentially by a dust pressing device (not shown) provided in the input box 7 and stored.

Reference numeral 8 denotes a discharge plate disposed so as to be able to move back and forth in the storage box 7, and 9 is a discharge cylinder for moving the discharge plate 8 forward and backward. When the refuse is discharged, the input box 7 is raised to open the rear end opening of the storage box 8, and then the discharge plate 9 is used to move the discharge plate 8 toward the rear of the vehicle at once, and the storage box 8 is moved forward. From the rear end of the discharge plate 8 to a certain dimension (approximately 5
The dust is discharged from the rear end opening of the storage box 8 by protruding only by H, and after discharging the dust, the discharge plate 9 retreats to the set position.
Close the rear end opening.

In the refuse collection vehicle according to the present invention, the lower end of the discharge plate 8 projects from the rear end of the storage box 6 by a predetermined dimension H. Across
A large opening communicating between the front of the container 1 and the discharge plate 8
It is formed in front of the storage box 1 when loading garbage by this opening.
The dust that has entered between the section and the discharge plate 3 can be easily discharged, and the workability of the cleaning operation can be improved.

FIG. 2 shows an electric circuit for lowering the input box 7 after retreating the discharge plate 8 to a predetermined position after discharging the dust.
W1 is a switch for operating the input box for raising and lowering the input box 7, SW2 is a switch for operating the discharge plate for moving the discharge plate 8 forward and backward, and SOL1 is a switch for raising the input box for raising the input box 7. Solenoid, SOL2 is an input box lowering solenoid for lowering the input box 7,
SOL3 is a discharge plate forward solenoid for moving the discharge plate 8 forward, SOL4 is a discharge plate backward solenoid for retracting the discharge plate 8, T is a timer, and Ta is a timer T.
Is activated and a timer contact that closes after a lapse of a specified time (time required for the discharge plate 8 to retreat to a set position), Tb is a timer contact that opens after a lapse of a specified time after the timer T operates, and PS is The pressure switch BZ attached to the discharge plate retreat hydraulic system is an alarm generator, for example, a buzzer.

In the above configuration, when the switch SW1 for operating the input box is turned down after the dust is discharged, the timer T is operated, the timer contact Ta is opened by the timer T, and the timer contact Tb is closed. An electric current flows through the plate retreat solenoid SOL4 to retreat the discharge plate 8. In this state, after a lapse of a specified time, that is, after the discharge plate 8 retreats to the set position, the timer T closes the timer contact Ta and opens the timer contact Tb, so that the current flowing to the discharge plate retreat solenoid SOL4 is cut off. And discharge plate 3
Stops retreating, and in return, the solenoid SO for loading box lowering
An electric current flows to L2, and the input box 7 is lowered.

When the discharge plate 8 is retracted, the storage box 6
When the dust or the like is caught between the discharge plate 8 and the discharge plate 8 and the discharge plate 8 does not retreat to the set position, the pressure in the discharge plate retreat-side hydraulic system of the discharge cylinder 9 rises to a specified pressure or more and the pressure switch P
Since S is switched from the timer T side to the buzzer BZ side, current flows to the buzzer BZ and the buzzer BZ emits an alarm sound, whereby the worker notices and releases his / her hand from the input box operation switch SW1. When the release switch SW1 is released, the release switch SW1 is returned to neutral, the current flowing to the discharge plate retreat solenoid SOL4 is cut off, and the discharge plate 3 stops retreating. 8
After a lapse of a specified time from the start of retreat, no current flows to the charging box lowering solenoid SOL2, and the charging box 7 does not lower.

In short, according to the present invention, after discharging dust,
Is lowered by the timer T, after a lapse of a specified time from the start of the retreat of the discharge plate 8, that is, after the discharge plate 8 retreats to the set position, the input box 7 is lowered, and the input box 7 and the discharge plate 8
When the discharge plate 8 is retracted, even if dust or the like is caught between the storage box 6 and the discharge plate 8 and the discharge plate 8 cannot be retracted, an alarm is sounded and a worker is sounded. To avoid collision between the input box 7 and the discharge plate 8.

[0018]

As described above, according to the present invention,
When the dust is loaded, the dust that has entered between the front of the storage box and the discharge plate can be easily discharged, improving the workability of the cleaning work. Interference with the discharge plate can be prevented, and the reliability is excellent.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a refuse collection vehicle of the present invention.

FIG. 2 is an electric circuit for controlling a charging box and a discharge plate.

FIG. 3 is a schematic side view of a conventional refuse collection vehicle.

[Explanation of symbols]

 6 Garbage storage box 7 Garbage input box 8 Discharge plate 9 Discharge cylinder T Timer Ta Timer contact Tb Timer contact PS Pressure switch BZ Alarm generator

Claims (2)

(57) [Claims] 1. A refuse storage box having a refuse storage box and a refuse input box which is openably and closably mounted at a rear end opening thereof, wherein a partition between the refuse storage box and a front portion of the refuse storage box is provided. Ejection of sheets
In a refuse collection vehicle in which a delivery plate is arranged to be able to move back and forth , the discharge plate is provided so as to be able to protrude from the rear end of the garbage storage box by a predetermined dimension, and when discharging garbage, the discharge plate is moved from the rear end of the trash storage box constant dimensions and projects, over the entire width of the discharge plate between the rear end of the lower end the dust housing box of the discharge plate dust
A refuse collection vehicle wherein an opening communicating with a front part of the storage box and the discharge plate is formed. 2. A first signal system for giving an open / close movement signal of the dust box to the opening / closing drive means of the dust box, and a front / back movement signal of the discharge plate to the front / back drive means of the discharge plate. A third signal system that applies a retreat signal to the front-rear drive mechanism of the discharge plate in conjunction with a closing signal of the dust input box; The provision of the closing signal to the opening / closing drive means of the dust input box by the timer provided,
2. The delay unit according to claim 1, further comprising a delay unit configured to delay a predetermined time required for the discharge plate to protrude from the rear end of the dust collection box into the dust storage box from a state where the discharge plate protrudes from the rear end of the dust collection box. Garbage truck.