JPH0637241B2 - Garbage truck - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a refuse collection vehicle, and more particularly to a structure for detecting the discharge of dust from a refuse storage box.

[Conventional technology and its problems]

As a garbage collection vehicle, a garbage storage box with an opening at the rear is provided on the traveling vehicle in a tiltable manner with the lower rear end as a fulcrum, and the dust stored in the dust storage box is discharged by tilting the storage box. There is something I did.

In the above-mentioned garbage truck, it has been customary in the past to visually inspect the operator whether or not dust has been discharged from the storage box. There is a problem that increases the work efficiency and deteriorates the work efficiency.

Also, as an automatic method for detecting dust discharge, a method is considered in which a photoelectric sensor is provided near the opening of the storage box and the movement of dust discharge is detected by the sensor. Since it is exposed inside the storage box, there is a disadvantage that the detection part is easily soiled or damaged by the stored dust, and reliable and highly reliable detection cannot be performed.

Therefore, an object of the present invention is to provide a refuse collection vehicle capable of reliably detecting the discharge of dust without causing a malfunction due to damage caused by the dust contained therein.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, the present invention provides a front inner surface of a dust container with a detection plate that swings toward the rear opening due to the tilting of the container, and by the detection plate when the container is not tilted. A detector for detecting the swing of the detection plate is provided on the inner surface of the front part of the storage box to be closed.

[Action]

In the above structure, when the dust container is tilted and the dust inside is discharged, the detection plate swings, and the swing is detected by the detector, and it can be confirmed that the dust is discharged.

Further, when the dust is stored in the dust storage box, the detection plate closes the detector, so that the detector is prevented from being damaged or soiled.

〔Example〕

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

As shown in FIGS. 1 and 2, the refuse collection vehicle comprises a traveling vehicle 1 and a refuse storage box 2 loaded on the traveling vehicle 1. The dust storage box 2 has a support shaft 3 at the lower rear end as a fulcrum. It is mounted so that it can be tilted up and down. Here, 4 is a dump cylinder for tilting the storage box 2.

The dust storage box 2 is formed as a closed container whose rear part is only opened, and a table gate 7 is rotatably attached to the upper end of the rear opening 5 via a pin 6.

The tailgate 7 has a dust input port 8 on the rear surface, and a dust loading device 9 including a rotary plate 10 and a push plate 11 for pushing the dust input from the dust input port 8 into the storage box is provided inside. ing. Reference numeral 12 in the drawing is a drive cylinder for rotating the table gate 7.

On the other hand, a detection plate 13 that swings toward the rear opening 5 when the storage box tilts is provided on the front inner surface 2a of the storage box 2.

As shown in FIGS. 3 and 4, the detection plate 13 is formed by rotatably connecting the upper end of a metal plate member to the front inner surface 2a by a hinge 14, and when the storage box 2 tilts. When the accommodation box 2 is in a normal state by swinging to move the lower end away from the front inner surface 2a, it abuts the front inner surface 2a to close the hole 15 formed in the front inner surface. 1
6 is a member for the detection plate 13 to surely close the hole 15.

Further, the detection portion of the detector 17 attached to the front portion of the housing box 2 faces the hole 15 closed by the detection plate 13.

A screw-in type proximity switch is used for this detector 17, and the detection plate 13 swings to move the front inner surface 2 by a predetermined distance.
It operates when it separates from a, and operates the indicator 18 such as a buzzer or an indicator light provided in the driver's seat of the traveling vehicle 1.

The dust collecting vehicle of the embodiment has the above-mentioned configuration, and
As shown in the figure, when the storage box 2 is in a horizontal state, the detection plate 13 closes the detector 17, so that even if dust is stored in the storage box 2 in a compressed state, the detector 17 is not damaged or soiled. To be prevented.

On the other hand, as shown in FIG. 5, the storage box 2 tilts to move the rear opening 5
When the dust is discharged from the detector, the detection plate 13 swings and the detector 17 detects it and informs the worker that the dust has been discharged.

In the above case, even if the storage box 2 tilts, if the dust on the back side of the storage box pushed in the compressed state stays in the storage box due to the bridge phenomenon and is not discharged, the detection plate 13 is stopped by the dust. The detector 17 does not operate because it does not swing.
That is, only when the dust is completely discharged is the detector 1
Since 7 operates, the discharge of dust can be surely confirmed.

In addition, in this embodiment, the refuse collection vehicle in which the tailgate 7 having the rotary plate type dust loading apparatus 9 is provided at the rear part of the storage box 2 is shown, but the loading apparatus such as the dust collection vehicle having the compression plate type loading apparatus is shown. Even if the garbage truck has a different structure, the structure of the present invention can be applied as long as the housing box is tilted to discharge the dust.

Further, the detector for detecting the swing of the detection plate is not limited to the proximity switch, and a contact sensor or another position detection sensor can be used.

〔The invention's effect〕

As described above, according to the present invention, the dust container is provided with the detection plate that swings due to its tilting movement, and the detection plate is used to block the detector from the dust. In addition to being able to detect automatically, the detector can be prevented from being damaged or soiled, and dust discharge can be detected reliably and stably.

[Brief description of drawings]

1 is a front view showing a garbage truck of an embodiment, FIG. 2 is a vertical sectional side view taken along the line II-II of FIG. 1, and FIG. 3 is a vertical sectional front view showing an enlarged main part of the same. FIG. 4 is a side view thereof, and FIG. 5 is a front view showing the operating state of the same. 1 ... traveling vehicle, 2 ... dust container, 2a ... front inner surface, 5 ... rear opening, 7 ... tailgate, 13 ... detection plate, 14 ... hinge, 15 ... hole, 17 ... … Detector, 18… Indicator.

Claims (1)

[Claims] 1. A refuse collection vehicle in which a dust storage box having an opening at the rear is tiltably provided on a traveling vehicle with a lower rear end as a fulcrum, and the storage box is tilted to the front inner surface of the dust storage box. A detector plate that swings toward the rear opening is attached, and a detector that detects the swing of the detector plate is provided on the front inner surface of the container that is blocked by the detector plate when the dust container is not tilted. A garbage truck characterized by this.