JPS6048402B2 - Garbage loading device for garbage collection vehicle - Google Patents

Description

[Detailed description of the invention] The present invention relates to a garbage loading device for a garbage collection vehicle.

In the garbage loading device of a garbage collection vehicle, which has a tailgate pivoted to the opening of the loading box that stores garbage, the tailgate is closed when loading garbage, the loading mechanism inside the tailgate is operated, and the loading mechanism is operated. The tailgate is designed to rotate upward when discharging trash from the box. However, in this type of garbage loading device, the tailgate, including the bottom sump section and side plates, is quite large and heavy, and it is difficult to rotate it upward with a dump cylinder etc. to discharge the garbage. Considerable power is required, and due to the large weight there is a risk that the tailgate will fall from its raised position.

Furthermore, the tailgate or its sump portion is integrally constructed with the side plate, and each time the tailgate is opened, the sump portion separates from the lower edge of the cargo box opening. Sewage in the garbage tends to leak at the joint of the box opening. The present invention aims to solve the above-mentioned safety and hygiene problems of the known technology.

Next, embodiments of the present invention will be described with reference to the drawings. 1st
In the figures and FIG. 2, reference numeral 1 denotes a packing box of a garbage collection vehicle, inside which garbage is collected.

The packing box 1 has an opening at its rear end (the right end in FIG. 2), and a section 2 is fixed laterally near the upper end of this opening. A sump portion 3 is provided adjacent to the lower edge of the opening of the cargo box 1. A support side frame 4 is fixedly installed on the cargo box 1 to support the sump section 3. Under the supporting action of the side frame 4, the sump section 3 is attached to the lower edge of the cargo box 1. They are connected as one. Both side frames 4 are integrally connected by a connecting member 5. The above-mentioned shape material 2 on the upper edge of the cargo box opening
The upper ends of both side plates 9a of the tailgate 9 are pivotally connected to the bracket 7 fixed to the tailgate 9 by means of a pivot pin 8.

The tailgate side plates 9a are integrally connected to each other by a panel-shaped deflector 10 on the cargo box 1 side, and are connected by a connecting member 11 on the side opposite to the cargo box. The tailgate side plate 9a is provided so as to be in contact with the inside of the support side frame 4 of the sump portion 3. A side plate 9a of the tailgate 9 is formed hollow, and a driven wheel 12 is provided inside the side plate 9a.

This driven wheel 12 is made of, for example, a sprocket wheel, and is similarly driven by a drive source 13 such as a hydraulic motor provided inside the side plate 9a via a transmission element 14 such as a chain. The rotating shaft 15 of the driven wheel 12 projects inside the side plate 9a, and both ends of one longitudinal side edge of the conveyor panel 17 are fixed thereto. Therefore, by operating the drive source 13, the conveyor panel 17 can be rotated so that its leading end traces a trajectory 17a in FIG. 2. A ram panel 20 is pivotally mounted between the tailgate side plates 9a by a pivot 19 (FIG. 2).

The ram panel 20 has a panel portion 20a extending downward from its pivot 19, and a portion 20b extending obliquely upward from its pivot 19; The lower end of the piston rod 22a of the ram cylinder device 22 is pivotally attached to the tip of the piston 20b via a pivot pin 21. The upper end of the ram cylinder device 22 is pivotally connected to a bracket 24 fixed to the deflector 10 by a pivot pin 23. -; The upper end of a lock/dump cylinder device 26 is pivotally attached to the outside of the tailgate side plate 9a by a pivot pin 27, and the lower end of this cylinder device 26 is pivoted to the outside of the tailgate side plate 9a. It is pivotally connected to one end of the arm 29 by a pin 28.

The other ends of the arms 2-, 19 are pivotally connected to a fixed pivot 30. The fixed pivot 30 is connected to the contact portion 3 of the side frame 4 for supporting the sump portion.
4, and a locking hook 31 is further pivotally attached to this pivot shaft 30. The arm 29 and the hook 31 are integrally fixed. On the other hand, an engagement pin 32 is fixed to the tailgate side plate 9a so as to be able to engage with the hook 31. As shown in FIG. 2, a discharge plate 36 is provided inside the cargo box 1 and is movable forward and backward toward the opening thereof. In the above configuration, in order to load garbage, the conveyor panel 17 is rotated clockwise in the state shown in FIGS. 1 and 2.

As a result, its tip is displaced along the bottom plate 3a of the sump section 3, and the garbage dumped thereon is scooped up. During the raking operation, the ram panel 20 is rotated counterclockwise from the solid line position in FIG. 2 to the closed position. and,
When the conveyor panel 17 rises to the solid line position in FIG.
Push the garbage above 7 into packing box 1. In order to discharge the garbage collected in the cargo box 1 as described above, the lock/dump cylinder device 26 is first extended. By this,
The arm 29 rotates counterclockwise in FIG. 3 around the fixed pivot 30, and in conjunction with this, the locking hook 31 rotates in the same direction and is disengaged from the engagement pin 32. When the cylinder device 26 is further extended, the pin 28 is moved to the abutting portion 34.
It comes into contact with and stops. Therefore, the extension force of the cylinder device 26 acts on the tailgate side plate 9a through the pivot pin 27, and the tailgate 9 is rotated as shown by arrow A in FIG. 2 and reaches the position shown in chain lines. In this state, the discharge plate 36 is advanced to the position shown by the chain line 36a using a hydraulic device (not shown) to discharge the garbage in the cargo box 1.

At this time, some of the dust falls into the sump section 3 and remains. The ejection plate 36 is then returned to the solid line position. Next, the lock/dump cylinder device 26 is contracted to lower the tailgate 9.

When the tailgate 9 returns to the solid line position in FIG. 2 and the cylinder device 26 further contracts, the locking hook 31 engages with the engagement pin 32 and the tailgate 9 is tightened. Next, the conveyor panel 17 is reversed counterclockwise from the solid line position in FIG. 2 to the position shown by the chain line 17a, whereby most of the debris remaining in the sump section 3 is discharged out of the sump section.

Next, after the lock/dump cylinder device 26 is extended again and the lock by the locking hook 31 is released,
The tailgate 9 is rotated somewhat counterclockwise until the tip of the conveyor panel 17 located at the position 17a reaches the outside of the sump section 3, whereby all the dust in the sump section 3 is discharged. Subsequently, the tailgate 9 is lowered and locked by contraction of the lock/dump cylinder device 26, and the conveyor panel 17 is rotated clockwise back to the solid line position in FIG. 2, completing the discharge cycle. As is clear from the above description of the embodiments, the present invention reduces the weight of the tailgate by opening the bottom of the tailgate and removing the sump from the tailgate, and instead removes the sump from the tailgate. The sump part, which has the functions of 1 and 2, is integrally fixed to the vehicle body including the cargo box, so while retaining the functions of the conventional tailgate type garbage loading device, the weight of the tailgate itself is reduced, making it easier to open and close the tailgate. It becomes possible to reduce the output required for operation and reduce the risk of falling. In addition, since the sump portion serving as the tailgate sump is immovably connected to the cargo box, it is possible to completely prevent dirt liquid from leaking from between the cargo box and the sump.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of one embodiment of the present invention, FIG. 2 is a longitudinal sectional side view of the same, and FIG. 3 is a partially enlarged view. 1... Packing box, 3... Sump section, 4.
...Sump part support side frame, 4a...Abutting metal fittings, 9...Tailgate, 9a...
Tailgate side plate, 10...Deflector, 13
... Drive source, 17 ... Conveyor panel, 19 ... Pivot, 20 ... Ram panel, 22 ... Ram cylinder device, 26.・・・・・・
・Lock/dump cylinder device, 31... Hook for tag, 32... Engagement pin, 34...
- Contact part of contact fitting 4a, 36...Discharge plate.

Claims (1)

[Scope of Claims] 1. A garbage charging sump part is provided integrally with the loading box adjacent to the lower part of the opening of the loading box for storing garbage, and a lateral pivot provided at the upper part of the opening of the loading box. A tailgate is provided so as to be rotatable around the container, and the cargo box opening can be opened and closed using the tailgate. The deflector is installed at a position that closes the upper part of the cargo box opening when the tailgate is closed, and a lateral pivot is supported downward between the left and right side plates of the tailgate. A conveyor panel is pivotally attached to the lateral axis of the sump section, and driving means for the conveyor panel is provided inside the side panels of the tailgate so as to be able to scrape up the dust in the sump section when the sump section is in the closed position. , a ram panel for pushing the garbage stirred up by the conveyor panel into a packing box is rotatably supported above the conveyor panel by a horizontal axis, and a ram cylinder device is provided to drive the ram panel. Garbage loading device for garbage collection vehicles. 2. The garbage loading device according to claim 1, wherein both side plates of the tailgate extend to near the bottom of the sump section.