JP3107515B2 - Garbage truck garbage collection equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage container tilting device mounted on a garbage truck.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
At the back of the garbage collection room (2) provided in (1), there is a garbage inlet (3) with a cover (4), and inside the garbage inlet (3) Embedded device (5)
A device (6) for tilting the waste container (7) is mounted outside the lower edge of the waste inlet (3). When collecting garbage by the above configuration, the cover (4) of the garbage inlet (3) is opened, the tilting device (6) grips the trash container (7), and the tilting device ( The waste container (7) is lifted and tilted by 6), and the waste in the waste container (7) is collected in the waste collection room.
(2) Put it in. After that, the garbage thrown into the garbage collection room (2) is lowered to the position indicated by the dotted line by the garbage scraping device (5), and is rubbed into the garbage collection room (2).

[0003]

In the above-mentioned conventional structure, when the dust container (7) is lifted up and tilted by the tilting device (6), the dust container (7) is operated by operating the dust scraping device (5). ) And the dust scraper (5) collide with each other and cause mutual damage.

[0004]

According to the present invention, as a means for solving the above-mentioned conventional problems, a garbage collection chamber (2) provided in a garbage collection vehicle is provided inside a garbage inlet (3) on the back side. The installed waste scraping device (5) and the waste inlet
(3) a tilting device (6) for the dust container (7) attached to the outside of the lower edge of the dust container (7), and the dust container (7) tilted by the tilting device (6) The present invention provides a refuse collection device for a refuse collection vehicle in which the trash collection device (5) is not operated when the trash collection device (5) is in a range that interferes with the refuse collection vehicle. In the above garbage collecting device, the garbage scraping device
(5) The above operation of the tilting device (6) of the waste container (7) is performed, for example, in a range where the waste container (7) of the tilting device (6) interferes with the dust scraping device (5). A device that tilts you
(6) The position detecting means LS detects the signal, and the signal of the position detecting means LS is set so that the operation circuit of the dust scraper (5) is turned off.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIGS.
Shown in In the figure, a garbage collection room (2) is provided in the body (1) of the garbage truck, and a garbage inlet (3) is provided on the back of the garbage collection room (2). Garbage input
A cover (4) that opens and closes up and down is attached to the outside of (3). A garbage scraper (5) is located inside the garbage inlet (3).
A trash container is provided on the outside of the lower edge of the refuse input port (3).
(7) Tilt device (6) is installed.

The dust scraping device (5) includes a guide rod (8),
A sliding cylinder (9) that slides up and down along the guide rod (8), and a scraping plate (10) that is attached to the lower end of the sliding cylinder (9) so as to be able to rotate back and forth, The sliding cylinder (9) slides up and down by hydraulic pressure from the standby position shown in FIG. 1 to the squeezing position shown in FIG. 3, and the squeezing plate (10) at the squeezing position as shown by the arrow A in FIG. Garbage inlet that rotates back and forth by hydraulic pressure in the direction
The waste D input from (3) is scraped into the waste collection room (2).

As shown in FIGS. 4 to 8, the tilting device (6) for the garbage container (7) has a mounting frame (11) for mounting on the vehicle body (1) and the mounting frame (1).
Hydraulic rotating drum (13) installed on support plate (12) of 1)
Rotating arms (15, 15) attached to both sides of a rotating shaft (14) of the rotating drum (13); and the left and right rotating arms (15, 15).
15) Upper beam (16) and lower beam (17) spanned between
And a rotating device (1) comprising a pair of left and right guide bars (18, 18) passed between the upper beam (16) and the lower beam (17).
9), a sliding frame (20), a pair of left and right hydraulic cylinders (21, 21) supported by the sliding frame (20), and the hydraulic cylinder
(21, 21) and a holding plate (23) supported on the upper ends of upper pistons (22, 22). Are upper and lower beams (25, 26), a pair of left and right side beams (27, 27), and four holding rods (e.g., 29), and the lower beam (26) of the sliding frame (20) is attached to the hydraulic cylinder (2).
Bracket (31,21) at the lower end of the lower piston (30,30).
31), and the gripping device (24) is connected to the hydraulic cylinders (21, 21) by the left and right rotating arms of the rotating device (19).
(15, 15) via brackets (32, 32) to be attached to the pivoting device (19), and to the pivoting device of the sliding frame (20) of the gripping device (24). Guide bars (18, 18) of the rotating device (19) are slidably fitted to a pair of left and right guide cylinders (33, 33) attached to the surface on the (19) side.

As shown in FIG. 6, the tilting device (6) for the garbage container (7) has a pair of right and left side edges of a mounting frame (11) fitted to a mounting plate (34) of the vehicle body (1). By fitting into the mating grooves (35, 35), it can be detachably attached to the outside of the lower edge of the waste inlet (3) on the back of the garbage truck. In this state, the rear bumper (36, 36) of the garbage truck is moved to the tilting device as shown in FIG.
The tilting device (6) is made to project slightly rearward from (6) to prevent the tilting device (6) from hitting an obstacle and being damaged when the garbage truck is backed.

To collect garbage by a garbage truck equipped with the tilting device (6), as shown in FIG. 1, the trash scraping device (5) is placed at a standby position shown by a solid line, and the tilting device (6) is mounted. At the vertical position, that is, at the standby position, the hydraulic cylinders (21, 21) of the gripping device (24) are operated as shown in FIG.
(23) is raised and the sliding frame (20) is lowered, and the holding plate (2
3) and widening the gap between each pin (29) of the sliding frame (20),
The upper edge flange (37) of the trash container (7) is inserted between the holding plate (23) and each holding rod (29). Reinforcing ribs (38) are provided at predetermined intervals below the upper edge flange (37) of the garbage container (7), and the upper edge flange (37) is connected to the holding plate (23). In a state inserted between the holding bars (29), the reinforcing ribs (38) enter between the holding bars (29) as shown in FIG. ) Is set so as not to interfere.

From the above prepared state, the hydraulic cylinders (21, 21) of the gripping device (24) of the tilting device (6) are operated to operate the holding plate (2).
3) is lowered and the sliding frame (20) is raised, and the holding plate (23)
And the garbage container (7) between each of the holding bars (29) of the sliding frame (20).
The upper edge flange (37). When the width of the waste container (7) is small, two of the waste containers (7) may be grasped at the same time. From the above gripping state, the rotating drum (1
3) is operated by hydraulic pressure to rotate the rotating arms (15, 15) together with the gripping device (24), and as shown in FIG.
Tilt the garbage container (7) gripped by (24), and
(7) The garbage D in the garbage truck is thrown into the garbage collection room (2) from the garbage collection port (3). In this case, the tilt angle θ from the horizontal line HL of the refuse container 7 is usually in the range of 30 ° to 40 °. In order to put the waste D in the waste container (7) as completely as possible into the waste collection chamber (2), the rotary drum (13) of the tilting device (6) is reciprocated as shown in FIG. The garbage container
It is desirable that (7) is reciprocated several times from the horizontal state shown by the solid line in FIG. 3 to the tilted state shown by the dotted line, and the refuse D in the refuse container (7) is dividedly charged.

As described above, the device for tilting the refuse container (7)
After the refuse D is thrown into the refuse collection chamber (2) of the refuse collection vehicle by tilting by (6), the trash removal device (5) is operated to guide the guide rod (8) as shown by the solid line in FIG. Sliding cylinder along
(9) is lowered to the lowermost position, that is, the scraping position, and then the scraping plate (10) is rotated in the direction of arrow A to throw in the dust D.
Waste into the garbage collection room (2).

When the dust scraping device (5) is operated and the dust container (7) is tilted by the tilting device (6), the dust scraping device (5) and the dust container (5) are moved. 7) may collide with To prevent this, the garbage container
When (7) is in a range that interferes with the dust scraping device (5), the dust scraping device (5) cannot be operated.

The dust scraping device (5) and the tilting device (6) are operated by a hydraulic path shown in FIG. In the drawing, CV1 is a switching valve for lowering and raising operation of the dust scraping device (5). The switching valve CV1 has solenoids SOLA and SOL for switching between lowering operation and raising operation.
LB, the switching valve CV1 is connected to a hydraulic supply path OPS, a descending hydraulic path OPD and an ascending hydraulic path OPA, and the descending hydraulic path OPD and the ascending hydraulic path OPA are connected to each other. It is connected to the working hydraulic cylinders Cy1 and Cy2 of the scraping device (5).

The upward hydraulic path OPA and the downward hydraulic path O
Operating hydraulic paths OPR1 and OPR2 of the tilting device (6) are branched from the PD, respectively.
Is provided with a flow control valve FCV, and the operating hydraulic path OPR1 and the operating hydraulic path OPR2 are respectively tilted by the tilting device.
(6) is connected to a switching valve CV2 for switching between an upward rotating operation and a downward rotating operation, and the switching valve CV2 has a solenoid S for switching between the upward rotating operation and the downward rotating operation.
OLC and SOLD are provided. And, from the switching valve CV2, the rotary drum rotation hydraulic paths OPAR and OP
DR and the rotary drum rotating hydraulic path O
PAR and OPDR are operating devices R of the rotating drum (13), respectively.
D, and the rotary drum rotating hydraulic path OP
The pressure adjusting valve circuits PCV1 and PCV2 are provided in the AR and the rotary drum rotation hydraulic path OPDR, respectively.

The hydraulic path is operated by the operation circuit shown in FIG. First, when the operation switch SW1 is moved upward from the standby position, the contacts a and c are connected to the contacts b and e, and the solenoid SOLB is shown. And SOLC. When the solenoid SOLB is energized, the hydraulic pressure path OP rises from the switching valve CV1 of the dust scraper (5).
A is supplied with hydraulic pressure, and the sliding cylinder of the dust scraper (5)
(9) is shown in FIG. 1 by operating hydraulic cylinders Cy1 and Cy2.
It rises to the solid line position and is placed in the standby position.

When the sliding cylinder (9) is in the standby position, the hydraulic pressure in the working hydraulic cylinders Cy1, Cy2 is saturated, and the hydraulic pressure is tilted via the operating hydraulic paths OPR1, OPR2. Be supplied to the side, tilting device (6)
Since the solenoid SOLC is energized as described above in the switching valve CV2, hydraulic pressure is supplied from the switching valve CV2 to the upward turning hydraulic path OPAR, and the tilting device (6) is connected to the waste container (7 ) Rotate upward to the tilted position.

As described above, the waste container (7) is moved by the tilting device (6).
If the tilt switch enters the range in which it is tilted and interferes with the dust scraping device (for example, the tilt angle is 30 ° or more), the limit switch LS is turned off and the dust scraping device (5) is turned off.
Switch S that lowers the garbage to scrape dust
Even if W2 is turned on, the switching valve C of the waste scraping device (5)
The solenoid SOLA of V1 is no longer energized, and the switching valve CV1 does not switch to the side of the descending hydraulic path OPD communicating with the operating hydraulic cylinders Cy1 and Cy2 of the dust scraper (5).

After the dust is input, when the operation switch SW1 is turned down, the contacts a and d are connected to the contacts b and f, and the solenoid SOLD of the switching valve CV2 is energized and the switching valve C is turned on.
The hydraulic pressure is supplied from V2 to the rotary drum rotation hydraulic path OPDR, and the tilting device (6) rotates downward, but contacts a and d.
Is connected, the energization to the solenoid SOLB of the switching valve CV1 of the dust scraping device (5) is continued. When the dust container (7) comes out of the range where it interferes with the dust scraper (5), the limit switch LS is turned on, and when the operation switch SW2 is turned on, the solenoid of the switching valve CV1 of the dust scraper (5) is turned on. When the solenoid is energized, the hydraulic pressure is supplied to the descending hydraulic path OPD side, and the operating hydraulic cylinder Cy
Sliding cylinder (9) of the garbage scraper (5) by using Cy2
Is lowered to the position indicated by the dotted line in FIG. 1 (the squeezing position shown in FIG. 3), and the input refuse is squeezed into the back of the refuse collection chamber (2).

In the above circuit, a photoelectric tube switch other than the limit switch may be used as the position detecting means of the dust container or the dust scraping device.

[0020]

According to the present invention, the collision between the waste container and the waste scraping device is completely prevented, and the waste can be collected safely.

[Brief description of the drawings]

 1 to 11 show a specific example of the present invention.

FIG. 1 is an explanatory view of a garbage container gripping state.

FIG. 2 is an explanatory view of a garbage container tilting state.

FIG. 3 is an explanatory diagram of a scraping state.

FIG. 4 is an exploded perspective view of the tilting device.

FIG. 5 is a front view of a rotating device.

FIG. 6 is a plan view of a tilting device mounted state.

7 is a sectional view taken along the line AA in FIG. 6;

FIG. 8 is a side view of the tilting device.

FIG. 9 is an explanatory side view before the garbage container is gripped.

FIG. 10 is a hydraulic path diagram of the refuse collection device.

FIG. 11 is an operation circuit diagram of the refuse collection device.

FIG. 12 is an explanatory view of a conventional example.

[Explanation of symbols]

 1 Garbage truck body 2 Garbage collection room 3 Garbage inlet 5 Garbage scraping device 6 Tilt device 7 Garbage container LS Limit switch (position detection means)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65F 3/00 B65F 3/04

Claims (3)

(57) [Claims] 1. A garbage scraper installed inside a refuse input port on the back of a refuse collection chamber provided in a refuse collection vehicle, and a trash container mounted on a lower edge outer side of the refuse input port. A refuse collection device, wherein the trash container is not operated when the trash container tilted by the tilt device is in a range that interferes with the trash device. Garbage collection equipment 2. The tilting device is provided with position detecting means, and the position detecting means detects that the waste container tilted by the tilting device is in a range where it can interfere with the dust scraping device. 2. The refuse collection device of a refuse collection vehicle according to claim 1, wherein in this case, the operation circuit of the trash collection device is set to be turned off by a signal from the position detection means. 3. The garbage collection device of a garbage truck according to claim 2, wherein said position detecting means is a limit switch interposed in an operation circuit of said trash collection device.