JPS6131002B2 - - Google Patents

Description

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

In a garbage loading device for a garbage collection vehicle, which has a tailgate pivotally connected to the vehicle body adjacent to an opening in the vehicle body, and is equipped with a deflector, a scraping panel, etc. inside the tailgate, the scraping panel is attached to the tailgate. In order to scrape the garbage dumped into the gate into the vehicle body, prior to the scraping operation, a reversal operation is performed in which the garbage is swung away from the vehicle body opening.

The conventional garbage loading device has a problem in that the garbage once shoveled into the vehicle body through the portion opened by the reversing operation of the scraping panel tends to flow back onto the sump of the tailgate.

In view of these problems, the present invention utilizes the displacement of the scraping cylinder device that causes the reversing movement when the scraping panel is reversed to swing the deflector toward the inside of the vehicle body, thereby causing the deflector to swing toward the inside of the vehicle body. It is designed to push certain debris deep into the interior of the vehicle to prevent it from flowing back.

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

In FIG. 1 showing the state before the start of the garbage loading operation and FIG. 2 showing the principle, 1 is the body of the garbage collection vehicle, and adjacent to the opening at the rear of the vehicle body 1 is a well-known structure. Tailgate 2 is installed. The tailgate 2 is a horizontally opposing 1
It is composed of a pair of side plates 2a, a sump 2b forming a bottom plate connecting both side plates, and beams 2C ₁ , 2C ₂ , 2C ₃ integrally connecting both side plates.
The tailgate 2 consists of brackets 4 attached to both ends of a profile 3 fixed laterally above the rear of the vehicle body 1.
is pivotally supported by a pivot pin 5.

The upper portions of side plate portions 7 provided at both lateral ends of the deflector 6 are pivotally supported by the pivot pin 5 .
The deflector 6 is a substantially rectangular panel that spans the entire width of the tailgate 2 in the lateral direction.
A pair of guide rails 8 are fixed. A guide groove is formed between these guide rails 8, and within the guide groove, a protrusion 9a (Fig. 1) fixed to the side edge of the panel-shaped slider 9 is slidable in the longitudinal direction of the guide groove. It's stuck in.

The upper side of a scraping panel 11 is pivotally attached to the lower edge of the slider 9 by a pivot pin 10.
The tip of a piston rod 13b of a scraping cylinder device 13 is pivotally attached to the pivot pin 10, and the tip of a cylinder 13a of the cylinder device 13 is
It is pivotally connected by a pivot pin 15 to a bracket 14 provided in the middle of the beam _2C2 .

A bracket 17 is fixed to the end of the beam _2C2 , and one end of a swing arm 19 is pivotally connected to this bracket 17 by a pivot pin 18 coaxial with the pivot pin. The other end is
It is pivotally attached to the side surface of the scraping panel 11 at a mid-height portion by a pivot pin 20.

An engaging pin 21 is provided in the middle of the swing arm 19 to protrude laterally, and this engaging pin 21 is inserted into a slot 22 formed in an arc shape centered on the pivot pin 18 in the tailgate side plate 2a. engaged. The outer end of the engagement pin 21 projects outward from the tailgate side plate 2a, and the tip of the piston rod 23b of the vertically moving cylinder device 23 is pivotally connected to the outer end of the engagement pin 21.
The tip of the cylinder 23a of the vertically movable cylinder device 23 is connected to a bracket 24 (FIG. 2) fixed to the vehicle body 1.
It is pivotally connected to by a pivot pin 25. The pivot pin 25 is located below the pivot pin 5.

Next, the operation of the embodiment of the present invention described above will be explained.

Before the start of the loading operation, all the members are in the state shown in FIGS. 1 and 2, and in this state the raking cylinder device 13 is first extended. In this case, the pivot pin 24 in the middle of the scraping panel 11
is supported at the tip of the swinging arm 19 and is substantially immovable, so the scraping panel 11 rotates in the direction of arrow A around this pivot pin 20 and reaches the position shown in FIG. 3, and performs a reversal operation. complete. In this state, the deflector 6 and the guide rail 8 supported by it rotate clockwise around the pivot pin 5 and are displaced toward the vehicle body 1. As a result, the dirt inside the vehicle body is forced into a state where it is difficult for it to flow back. Note that, along with this pushing operation, the slider 9 is slid slightly upward along the guide rail 8.

Next, in order to lower the inverted scraping panel 11 in the direction of arrow B, the vertical movement cylinder device 2
3 is extended. As a result, the swing arm 19 rotates counterclockwise, the engagement pin 21 descends along the slot 22, and the slider 9 descends along the guide rail 8, resulting in the state shown in FIG. 4.

Next, in order to cause the scraping panel 11 to perform a scraping operation in the direction of arrow C, the scraping cylinder device 13 is contracted. At this time, the vertical cylinder device 23 remains inoperative, the swing arm 19 does not swing, and therefore the scraping panel 11 rotates clockwise around the fixed pivot pin 20. , its tip 11a moves along the surface of the tailgate sump 2b, and reaches the state shown in FIG. 5 while stirring up the garbage that has been previously dumped onto the sump 2b.

In the state shown in FIG. 5, the vertically movable cylinder device 23 starts to contract, the swing arm 19 starts to swing upward, and the slider 9 rises again along the guide rail 8. By this movement, the scraping panel 1
1 is pulled up in the direction of arrow D with its tip 11a along the surface of the remaining portion of the sump 2b, and the state shown in FIG. 2 is reached, and the dust on the sump 2b is swept up into the interior of the vehicle body.

After the above movement is repeated and the vehicle body 1 is filled with debris, in order to discharge it, the vertical movement cylinder device 23 is extended and moved around the tailgate 2 and its pivot pin 5 as shown in FIG. Flip it up in the direction of arrow E as shown to open the vehicle body opening.

In order to make this possible, a dump stopper 30 is provided on the side plate 2a of the tailgate 2, as shown in FIG. Dump stopper 30 is pivot 3
1 to the tailgate side plate 2a, and swings freely into and out of the lower end of the slot 22. In order to swing the dump stopper 30, a drive device 32 is supported on the tailgate side plate 2, and this drive device 32 is connected to the dump stopper 30 via a link 33. Drive device 32
When the dump stopper 30 is made to protrude to the lower end area of the slot 22 and the vertical cylinder device 23 is extended by the operation, the engagement pin 21 descends and collides with the dump stopper 30, and the vertical cylinder device is moved through the dump stopper. 23 is transmitted to the tailgate 2, a counterclockwise moment acts on the tailgate 2, and the tailgate is opened. With this configuration, it becomes possible to flip up the tailgate by also using the vertically moving cylinder device.

FIG. 7 shows a modified embodiment of the invention. In the embodiment described above, the pin 18 of the swing arm 19 and the pin 15 of the scraping cylinder device 13 are arranged coaxially in the transverse direction, but in this modification the pins 15, 18 are provided at different heights. It is clear that even with such a configuration, the same functions and effects as those of the above-mentioned embodiments can be obtained.

In another variant embodiment shown in FIG. 8, one end of the raking cylinder device 13 is not connected to the pivot 10 between the slider 9 and the raking panel 11 as in the previous two embodiments, but instead Pivot pin 35 below pin 20 in the middle of 11
It is pivoted by. In this case, the pushing action of the deflector 6 by the thrusting cylinder device 13 is not effected by its extension, but by its shortening. Further, the reversal of the scraping panel 11 is also performed by shortening the scraping cylinder device 13 rather than by extending it.

As described above, in the present invention, one end of the scraping cylinder device is pivotally connected to the tailgate on the side opposite to the vehicle body, and the other end is pivotally connected to a part of the scraping panel, thereby making it possible to reverse the scraping panel. By using this, the deflector 6 can be swung toward the vehicle body to push in the debris and prevent its backflow.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a longitudinal sectional side view of the same, Figs. 3 to 6 are diagrams showing sequentially changing operating states of the embodiment, and Fig. 7 is a modified implementation. FIG. 8 is a vertical side view showing another modified embodiment. 1...Vehicle body, 2...Tailgate, 2b...Sump,
4...Bracket, 5...Pivot pin, 6...Deflector, 8...Guide rail, 9...Slider, 9a...Protrusion, 10...Pivot pin, 11...Scraping panel, 1
3... Scraping cylinder device, 15, 18... Pivot pin, 19... Swing arm, 21... Engagement pin, 22...
Slot, 23... Vertical cylinder device, 30... Dump stopper, 35... Pivot pin.

Claims (1)

[Scope of Claims] 1. A tailgate whose upper end is pivotally connected to the vehicle body adjacent to the vehicle body opening, and a tailgate which is suspended by a lateral pivot above the vehicle body opening near the boundary between the tailgate and the vehicle body opening. A panel-shaped deflector that can swing from the inside toward the inside of the vehicle body opening, and a panel-shaped deflector that is supported by the deflector via a guide rail so as to be able to slide up and down along the side of the deflector opposite to the vehicle body opening. A slider, a scraping panel whose upper edge is rotatably supported by a lateral pivot on the lower edge of the slider, one end of which is pivoted to the tailgate at a fixed position far from the vehicle body opening, and the other end of which is pivotally supported by the tailgate at a fixed position far from the vehicle body opening; A swinging arm is pivotally attached to the middle part of the panel in the vertical direction, one end is pivoted to the tailgate at a fixed position far from the vehicle body opening, and the other end is a pivoting part between the swinging arm and the scraping panel. a telescopic scraping cylinder device pivotally attached to the scraping panel at different positions in the vertical direction; and a telescopic vertical cylinder device that swings the swinging arm up and down about the pivot at the fixed position. A garbage loading device for a garbage collection vehicle. 2. The garbage loading device according to claim 1, wherein the other end of the raking cylinder device is pivotally supported on a lateral pivot between the slider and the raking panel. 3. The garbage loading device according to claim 1, wherein the other end of the scraping cylinder device is pivotally connected to the scraping panel at the tip of the scraping panel at a pivot point between the scraping panel and the swing arm. 4. Claim 1, in which one end of the vertically movable cylinder device is pivotally connected to the vehicle body at a position below the pivot for pivotally connecting the tailgate to the vehicle body, and the other end is pivotally connected to an intermediate portion of the swing arm. The garbage loading device according to any one of Items 1 to 3. 5 An engagement pin is provided at the pivot joint between the swing arm and the vertical cylinder device, and an arc-shaped slot is provided around the pivot joint between the swing arm and the tailgate so that the engagement pin can be inserted through it. 5. The garbage loading device according to claim 4, wherein a dump stopper is supported by the tailgate so as to be able to freely protrude and retract from the lower end of the slot.