JPH0353202B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] In recent years, abandoned and scattered empty cans of soft drinks, beer, etc. have spoiled the beauty of cities and become a social problem. This invention relates to a garbage truck that can efficiently collect empty cans by squeezing them.

[Conventional technology]

Conventionally, an empty can collection vehicle described in JP-A-56-37901 has been provided on the market, but in this empty can collection vehicle, the compressor installed at a high place has a compressor wheel shaped like an automobile wheel on the drive side. This is a special vehicle for recovering empty cans, which is equipped with a steel wheel on the driven side that presses against the wheels, and crushes the empty cans almost completely between the two wheels and discharges the empty cans from the discharge duct into the storage box.

[Problem that the invention seeks to solve]

This conventional technique causes the following problems.

(a) Since the automobile wheel-shaped compression ring presses against the steel ring and crushes the empty can almost completely, not only is the noise and vibration generated by the press machine intense, but also the almost completely crushed empty can is crushed by the press machine. Pushed between each part,
The compressor is likely to malfunction.

(b) Since all of the collected empty cans are almost completely crushed, it is not possible to block them using another press for recycling the collected empty cans.

(c) Since the vehicle is dedicated to collecting empty cans, the efficiency of collecting empty cans, which are scattered and stored or abandoned in various parts of the city, is poor.

(d) Each local government, etc. must have a dedicated vehicle for collecting empty cans, separate from general garbage vehicles.

The present invention aims to solve the above problems all at once.

[Means for solving problems]

In order to achieve this object, the present invention has a tailgate that is pivotally opened and closed at the top of the rear end opening of a cargo box, and garbage that is thrown onto the arc-shaped bottom plate of the tailgate from the garbage inlet on the rear face. In a garbage truck equipped with a device for loading garbage into a cargo box, which includes a rotating panel that can scoop up the garbage forward, the rear hopper and the cylindrical empty cans of soft drinks etc. placed in it are placed at the tip of the rotating panel. A pair of upper and lower horizontal pressing rolls compresses the material into a hollow flat body having a thickness greater than the distance between the trajectory of A compressor having a drive device and having a width significantly smaller than the garbage inlet of the tailgate is attached to the rear surface of the tailgate so that the front discharge port communicates with the lower part of the garbage inlet, and the compressor is covered with the compressor. The garbage inlet that does not have to be removed remains at the rear of the tailgate so that general garbage can be input.
In addition, the rotational speeds of both horizontal press rolls are set so that the press empty cans discharged from the front discharge port of the press machine hit the front rising portion of the arcuate tailgate bottom plate.

The garbage truck is pivoted on the rear body of the automobile so that the bottom of the rear opening of the loading box can be tilted rearward, and the garbage truck is pivoted on the top of the rear opening of the loading box so that it can be opened and closed. If the tailgate is equipped with a garbage loading device for the cargo box, which includes a rotating panel that can scoop up the garbage thrown into the arc-shaped bottom plate of the tailgate from the garbage input port on the rear side, The rear hopper and the cylindrical empty cans of soft drinks etc. placed therein are placed in a hollow flattened container with a thickness greater than that between the locus of the tip of the rotating panel and the front rising portion of the arcuate tailgate bottom plate. It is equipped with a pair of upper and lower horizontal squeezing rolls that squeeze the garbage into the body and send it out to the front discharge port, and a driving device for the same. The press is rotatably pivoted between an operating position in which the discharge port communicates with the lower part of the garbage input port and a non-operating position in which the discharge port is in contact with the rear surface of the tailgate above the operating position. A hydraulic cylinder device that can be selectively rotated between a non-operating position and a non-operating position is attached to the tailgate side, and a garbage inlet that is not covered by the compressor in the operating position remains on the rear surface of the tailgate so that general garbage can be input. Further, it is preferable to set the rotational speed of both horizontal press rolls so that the press empty cans discharged from the front discharge port of the press machine hit the front rising portion of the arcuate tailgate bottom plate.

[Effect]

In the garbage loading device installed in the tailgate of a conventional garbage truck, the distance between the trajectory of the tip of the rotating panel and the arcuate bottom plate of the tailgate is such that the operator's hand may get caught when loading garbage. to prevent
Moreover, in order to avoid leaving any dirt behind, it is normal that the tailgate bottom plate is gradually narrowed toward the front from the rear end of the tailgate bottom plate. The horizontal squeezing roll moves the cylindrical empty cans placed into the rear hopper between the locus of the tip of the rotating panel and the front rising part of the arcuate bottom plate of the tailgate.
The compressed empty can discharged from the front discharge port of the compressing machine hits the front rising part of the arcuate bottom plate of the tailgate, so that the compressed empty can is compressed into a hollow flat body with a larger thickness than the space between The discharged compressed empty cans accumulate at the bottom of the tailgate's garbage inlet and are caught between the tip of the rotating panel and the arcuate bottom plate of the tailgate. There is no risk of blocking the raking action, and the power required for squeezing empty cans is also smaller than in the past.

Therefore, empty cans squeezed by a squeezer attached to a part of the rear surface of the tailgate and general garbage thrown into the tailgate from the garbage inlet excluding the area where the squeezer is attached are collected by a garbage loading device. They can be loaded into boxes at the same time.

By pivoting the bottom of the rear opening of the loading box onto the rear body of the vehicle and tilting the loading box backwards with the tailgate open, the stored garbage inside the loading box can be discharged (dumped) using power. In garbage trucks that carry garbage trucks, when the loading box is tilted backwards, the pivot portion of the tailgate to the loading box is displaced rearward. The backward overturning moment of the garbage truck may reduce the backward overturning resistance of the garbage truck, which uses the rear axle as a fulcrum. , the center of gravity of the press is moved closer to the pivot portion of the tailgate to the cargo box to prevent the garbage truck from deteriorating in its resistance to tipping over backwards. Of course, even when collecting only general garbage without collecting empty cans, if the press is rotated to the non-operating position, there is no fear that the press will interfere with the collection of general garbage.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.
The garbage truck has a cargo box 9 mounted on a pivot 10 on the rear body 8 of the automobile so that it can be tilted rearward (to the right in FIG. 1), and a tailgate 7 connected to the rear of the cargo box 9 is attached to the cargo box. A pivot panel 11 is mounted on the top of the rear end so as to be openable and closable, and within the tailgate there is a rotary panel 13 which is rotated in the direction of the arrow in FIG. As before, a garbage loading device including a push-in panel 16 is attached, and a garbage inlet 5 is provided on the rear wall plate of the tailgate 7 over substantially the entire width as shown in FIG. However, the garbage inlet 5 is narrowed by attaching a compressor 6, which will be described later, and this narrowed garbage inlet can be closed by a lid 17 which can be opened and closed as shown in FIG.

For this reason, the garbage inlet 5 excluding the presser attachment part
The garbage thrown in is scraped forward and upward along the arc-shaped tailgate bottom plate 7a by the rotating panel 13, which rotates once from the position approximately shown in FIG. Push-in panel 1
By the forward movement of 6, the scraped garbage is pushed into the cargo box 9.

Therefore, in order to load empty cans compressed by the press machine 6 into the cargo box 9 with such a garbage loading device, it is necessary to make sure that the compressed empty cans jump into the tailgate 7 so as not to accumulate at the bottom of the garbage inlet 5. At the same time, it is necessary to make the thickness of the compressed empty can at least larger than the distance between the trajectory B of the tip of the rotating panel 13 and the front rising portion A of the arcuate tailgate bottom plate 7a.
This is because, as mentioned above, the distance C between the trajectory B and the arcuate tailgate bottom plate 7a is designed to prevent the operator's hand from getting caught when putting in the garbage, and to prevent any garbage from being left behind. Since it is gradually narrowed from the rear end of the bottom plate to the front, the garbage inlet 5
This is because if compressed empty cans are accumulated at the bottom of the rotary panel 13, there is a risk that they will be caught in the gap C all at once and prevent the rotating panel 13 from being scraped forward.
For this reason, it is preferable that the thickness of the compressed empty can be approximately the same as the distance (15 to 20 mm) at the lower end of the arc-shaped bottom plate of the tailgate.

As shown in FIG. 3, the compressor 6 is rigidly connected between the vertical side walls 19, 19 on both sides by the front and rear outer panels 20, 21 and the top plate 22, and can be opened and closed between the lower ends of the front and rear outer panels. A pair of upper and lower horizontal pressing rolls 3 and 4 of equal diameter are placed inside a pressing machine outer casing closed by an arcuate lid 23.
The compressed empty cans are mounted so as to have the above-mentioned thickness, and the compressed material guides 20a and 21a, each having a V-shaped cross section whose tips are in approximate contact with the lower pressing roll 4, are attached to the front and rear outer plates 20 and 2, respectively.
1 over the entire width, and the pressed material guide 20a
A front discharge port 2 is formed between the upper and lower pressing rolls 3, and a rear hopper 1 is formed between the upper and lower pressing rolls 3, 4 and the upper inclined portion 21b of the rear outer plate 21. Note that 20b indicates a pressed material scraping blade attached to the upper end of the front outer plate 20 facing the upper pressing roll 3.

24 indicates a lid of the rear hopper 1 which is pivoted 25 to the vertical side wall plates 19 on both sides at the rear end of the top plate 22;
The lid 24 is restrained in the closed position shown by spring catches 26 installed between it and the vertical side wall plates 19 on both sides to prevent the empty can A from flying out of the hopper during squeezing. A suitable spring mechanism 27 is attached to the top plate 22 to elastically support the spring 24 in the open position when the spring 24 is opened as shown by the chain lines in FIG.

The upper horizontal pressing roll 3 is made by baking a rubber ring 3a with vertical and horizontal grooves on the outer periphery of a steel drum wedged on the rotating shaft 28, and the lower horizontal pressing roll 4 is formed by baking a rubber ring 3a on the outer periphery of a steel drum wedged on the rotating shaft 28. A non-grooved rubber ring 4a is baked on the outer periphery of a wedged steel drum, and the hardness of the lower rubber ring 4a is greater than that of the upper rubber ring 3a, which prevents the empty can A from slipping and has a squeezing effect. improve. The rotating shafts 28 and 29 are driven by hydraulic motors 30 and 31 respectively attached to the left vertical side wall plate 19 at approximately constant speed in the direction of the arrow in FIG. It is discharged from the discharge port 2. Reference numeral 32 denotes a control panel for controlling the hydraulic motors 30 and 31, and the control panel 32 is located at the center of the upper surface on the pivoting side of the lid 24 so that it is difficult to operate unless the upper opening of the rear hopper 1 is closed with the lid 24. Installed.

The compressor 6 has both ends of a horizontal shaft 33 attached to its upper end connected to bearings 34 attached to the left side wall plate of the tailgate 7, and bearings 35 attached to the lower edge material 7b of the garbage inlet 5. At the same time, the front lower part of the press is engaged with a stopper 36 attached to the lower edge member 7b by the action of gravity, and is attached to the rear surface of the tailgate, and is attached to the left side wall plate of the tailgate. Bracket 7c attached to the bottom end
A hydraulic cylinder 37 is installed between the arm 19a and an arm 19a correspondingly installed on the left side of the compressor 6 so as to move the compressor up and down. 1st
When the hydraulic cylinder 37 is contracted and restrained in the operating position as shown in the figure, the front outlet 2 of the compressor
communicates with the lower part of the garbage inlet 5, but the upper part of the garbage inlet is closed by the outer plate 7d as shown in FIG. 1 to form a press receiving recess.

Therefore, by extending the hydraulic cylinder 37, the compressor 6 is moved around the outer plate 7 using the pivot shaft 33 as a fulcrum.
If the press is rotated to the non-operating position shown by the chain line in Figure 1 along line d, the press will not get in the way when empty cans are not being collected, and the tailgate 7 can be opened upward to remove the stored garbage in the cargo box 9. The safety of the garbage truck from falling backwards when discharging garbage is improved.

4 and 5 above and below the bearings 38 and 39 at both ends of the upper pressing roll rotating shaft 28, which loosely fit through holes or elongated holes provided in the vertical side wall plates 19 on both sides.
As shown in the figure, a pair of upper and lower brackets are provided with shaft portions 40 and 41 parallel to the center line connecting the rotating shafts 28 and 29, respectively, and the shaft portions 40 and 41 are fixed to the outside of the corresponding side wall plate 19, respectively. A screw mechanism 44 is slidably inserted into the shafts 42 and 43 and vertically adjusts the rotating shaft 28 between the corresponding bearing 38 and the bracket 42 and between the bearing 39 and the bracket 43, respectively.
is installed so that when the gap between the press rolls 3 and 4 increases due to wear of the rubber rings 3a and 4a, the gap can be reset to a predetermined dimension. For this purpose, the hydraulic motor 30 is mounted on a bearing 38.

Although not shown, it is preferable to provide means for finely adjusting the rotational speeds of the hydraulic motors 30, 31 in accordance with the difference in wear between the rubber rings 3a, 4a.

When collecting empty cans A and garbage, first, by fixing the press 6 in the operating position shown by the solid line in Figure 1, the bottom surface of the front discharge port 2 is approximately flush with the top surface of the lower edge material 7b of the garbage input port. At the same time, the upper pressing roll 3 is made to protrude into the garbage inlet 5 so as not to interfere with the trajectory B of the tip of the rotating panel 13.

Next, when the cylindrical empty cans A thrown into the rear hopper 1 reach a certain amount when the garbage truck stops running, etc., the lid 24 of the hopper is closed as shown in FIG. The upper and lower pressing rolls 3 and 4 are operated by operating the panel 32.
is driven in the direction of the arrow in the figure. Then, the empty can A is sequentially compressed into a flat hollow body between the upper and lower pressing rolls, and the compressed empty can is transferred from the front discharge port 2 to the garbage input port 5.
through the tailgate and accumulates on the lower end of the arcuate tailgate bottom plate 7a. In this case, the plunge speed of the compressed empty can is set to the above-mentioned speed (4 to 6 per second).
m), the compressed empty cans will be accumulated on the lower end after hitting the front rising portion A of the arc-shaped tailgate bottom plate 7a, so that the rotary panel 13 will not be able to scrape the compressed empty cans. There is no risk that an empty compressed can will be caught between the tip of the rotating panel and the bottom plate of the tailgate when it is raised.

The compressed empty cans thus accumulated on the bottom plate of the tailgate are loaded into the cargo box 9 in the same way as general garbage by driving the garbage loading device. Of course, when loading the compressed empty cans, it is also possible to input general garbage from the garbage inlet 5 and load it into the cargo box 9 at the same time.

In the illustrated embodiment, the front part of the horizontal upper pressing roll 3 is made to protrude into the garbage inlet 5, which increases the volume of the rear hopper 1 without significantly increasing the length of the entire garbage vehicle in the longitudinal direction. At the same time, the height of the opening at the upper end of the hopper above the ground is lowered to facilitate the insertion of cylindrical empty cans.

〔Effect of the invention〕

Since the present invention has the above configuration, the following effects are achieved.

(1) The thickness of the cylindrical empty cans compressed by the compressor is set to a size that allows them to be loaded into the cargo box by the rotating panel of the garbage loading device inside the tailgate, and the force required to compress the empty cans is reduced compared to conventional methods. Since it is made smaller, not only does the noise and vibration generated by the press become smaller than before, but there is no risk that an empty press can will be pushed between the various parts of the press, causing a malfunction of the press.

(2) As mentioned above, the force required to squeeze empty cans is made smaller than before, and the compressed empty cans are discharged into the garbage inlet at a speed that does not accumulate at the bottom of the garbage inlet of the tailgate. Therefore, by simply attaching a squeezer to a part of the rear surface of the tailgate of a conventional garbage truck, the garbage loading device inside the tailgate can be used as is to load cylindrical empty cans into the cargo box. It is now possible to load general garbage at the same time, which not only improves the collection efficiency of cylindrical empty cans and general garbage that are stored or abandoned in various parts of the city, but also allows empty can collection vehicles to be loaded with general garbage. There is no need to prepare separately from the car.

(3) Empty cans collected by garbage trucks are separated into iron and aluminum, then formed into blocks of 100 to 200 kg and disposed of to scrap companies. Although a certain amount of crushing allowance must be provided, the compressed empty can according to the present invention satisfies this condition.

(4) If the compressor is mounted on the rear surface of the tailgate so that it can be rotated from the working position to the non-working position,
By rotating the press to the non-operating position, it is possible not only to prevent the press from interfering with the garbage loading operation when only general garbage is collected, but also to prevent the waste from being stored in the cargo box. The ability to prevent a garbage truck from tipping over when dumping garbage is improved.

[Brief explanation of drawings]

Figure 1 is a side view of one embodiment of the present invention, Figure 2 is a rear view of its tailgate, Figures 3 and 4 are a vertical sectional side view and side view of the compressor, respectively, and Figure 5 is Figure 4. It is a XX sectional view of. 8... Rear body of a car, 9... Packing box, 13...
...Rotating panel, 16...Pushing panel, 30, 31
...Hydraulic motor.

Claims (1)

[Scope of Claims] 1. Garbage thrown onto the arc-shaped bottom plate of the tailgate from the garbage inlet on the rear side of the tailgate is pivoted to the top of the rear end opening of the cargo box so that it can be opened and closed. In a garbage truck equipped with a device for loading garbage into a cargo box that includes a rotary panel that can be scraped up, the rear hopper 1 and the cylindrical empty cans of soft drinks etc. put into it are placed at the tip of the rotary panel 13. A pair of upper and lower horizontal pressing rolls compresses the hollow flat body with a larger thickness than the space between the locus B and the front rising portion A of the arcuate tailgate bottom plate 7a, and sends it out to the front discharge port 2. 3 and 4 and their driving device, and whose width is significantly smaller than the garbage inlet 5 of the tailgate 7, the press 6 is installed in the tailgate so that the front outlet 2 communicates with the lower part of the garbage inlet. Attached to the rear of the tailgate, the garbage inlet that is not covered by the press remains on the rear of the tailgate so that general garbage can be input.
An empty can characterized in that the rotational speed of both horizontal pressing rolls is set so that the pressed empty can discharged from the front discharge port 2 of the pressing machine hits the front rising portion of the arcuate tailgate bottom plate 7a. Garbage truck that can be squeezed and loaded. 2. The bottom of the rear opening of the loading box is pivoted on the rear body of the automobile so that the loading box can be tilted rearward, and the tail is pivoted to the top of the rear opening of the loading box so that it can be opened and closed. The rear part of a garbage truck is equipped with a device for loading garbage into a cargo box, which includes a rotary panel that can scrape forward the garbage thrown into the arcuate bottom plate of the tailgate from the garbage input port on the rear side. Hotupa 1
Then, the cylindrical empty can of soft drink or the like put into this is placed in a container with a thickness greater than the distance between the trajectory B of the tip of the rotating panel 13 and the front rising portion A of the arcuate tailgate bottom plate 7a. Squeeze it into a hollow flat body,
The upper end of the press 6, which is equipped with a pair of upper and lower horizontal press rolls 3, 4 that send the waste to the front discharge port 2 and a driving device thereof, is The compressor is rotatably pivoted between an operating position in which the part discharge port 2 communicates with the lower part of the garbage inlet and a non-operating position in which it substantially contacts the rear surface of the tailgate above the operating position. A hydraulic cylinder device that can be selectively rotated between an operating position and a non-operating position is installed on the tailgate side, and the garbage inlet that is not covered by the compressor in the operating position remains on the rear surface of the tailgate so that general garbage can be input. The rotational speed of both horizontal pressing rolls is set so that the compressed empty cans discharged from the front discharge port 2 of the pressing machine hit the front rising portion of the arcuate tailgate bottom plate 7a. A garbage truck that can compress and load empty cans.