JP7477318B2 - Refuse collection truck - Google Patents

Description

The present invention relates to a garbage collection vehicle that collects garbage from homes, businesses, etc.

The area around the garbage inlet of a garbage collection truck is a harsh environment for garbage collectors, as the odor from the collected garbage can make it difficult to breathe. For this reason, measures against odors have traditionally been taken, such as spraying liquid deodorants or fragrances at the inlet to chemically deodorize or mask the odors.
For example, Patent Document 1 discloses a garbage collection vehicle equipped with a deodorizer tank for storing liquid deodorizer, a main spray nozzle for spraying the liquid deodorizer toward the inner surface of the side wall of a garbage dump box, and a supply pipe for supplying liquid deodorizer from the deodorizer tank to the main spray nozzle.
Patent document 2 also discloses a garbage collection truck-mounted chemical spray system that includes a chemical tank, a chemical supply pump, a chemical spray nozzle that can be installed in the garbage dump of the garbage collection truck to spray chemicals into the garbage dump space, a switch mechanism that can spray chemicals when the sealing door of the garbage dump is closed, and chemical supply piping that connects these together to supply chemicals.
Furthermore, Patent Document 3 discloses a deodorizing device for a garbage collection truck, which is composed of a deodorizing liquid tank, a pump, piping, and a spray nozzle attached to the garbage collection truck, and which sprays deodorizing liquid in accordance with the garbage being put in.
Furthermore, Patent Document 4 discloses a garbage collection vehicle equipped with an aromatic liquid spraying device above the garbage inlet that sprays aromatic liquid at appropriate times or in conjunction with the garbage loading operation, and a spray liquid adsorption device that adsorbs the sprayed liquid and emits a fragrance.
Furthermore, Patent Document 5 discloses an automatic chemical spraying device for a garbage collection vehicle that is provided with a pump that pressure-feeds the chemical in one direction in conjunction with the operation of the garbage loading operating mechanism, and intermittently sprays the chemical from a spray nozzle.

JP 2018-87084 A JP 2009-18926 A JP 2002-128203 A Japanese Utility Model Application Publication No. 50-127115 Japanese Utility Model Application Publication No. 48-105212

In the technique disclosed in Patent Document 1, a second supply pipe equipped with a nozzle is installed inside a garbage dump box, and there is a possibility that the second supply pipe may be damaged by contact with the garbage dumped in.
In addition, Patent Document 2 connects a chemical tank installed at the front of the vehicle to a nozzle installed in the garbage dump at the rear of the vehicle with a chemical supply pipe, and such a long chemical supply pipe increases the possibility of damage.
In addition, Patent Document 3 discloses a system in which a deodorizing liquid tank installed at the front of the vehicle is connected by piping to a spray nozzle installed above the collection material inlet at the rear of the vehicle, and when the chemical supply piping is long like this, the possibility of damage increases.
Moreover, in the method disclosed in Patent Document 4, a liquid supply pipe is provided laterally on the inside of the upper part of the input port, and there is a possibility that the liquid supply pipe may be damaged by contact with the input garbage, etc.
In addition, in Patent Document 5, a chemical transport pipe connecting the chemical tank and the spray nozzle is installed inside the inlet, and there is a possibility that the chemical transport pipe may be damaged by contact with the inserted garbage, etc.

The present invention aims to provide a refuse collection vehicle that reduces odors during garbage collection and prevents damage to the tubes through which fragrances for reducing odors pass.

The garbage collection vehicle 1 of the present invention described in claim 1 comprises a crew cabin 10 in which garbage collecting workers sit, a garbage dump box 30 having an inlet 31 through which garbage is dumped, a storage box 20 arranged between the crew cabin 10 and the garbage dump box 30 for storing garbage, and a fragrance sprayer 40 for spraying fragrance, the fragrance sprayer 40 having a main body 41 for storing liquid fragrance, and a tube 43 having a length of 50 cm or less and having a spray section 42 at one end and the other end connected to the main body 41, the main body 41 and the tube 43 being arranged on the outer surface of one side wall 30A of the garbage dump box 30, at least a part of the spray section 42 being arranged in a through hole penetrating one side wall 30A of the garbage dump box 30, the liquid fragrance is atomized inside the main body 41, and the fragrance is sprayed from the spray section 42 towards the garbage dump box inlet 31.

The present invention described in claim 2 is characterized in that, in the garbage collection vehicle 1 described in claim 1, one end of a tube 43 arranged on the outer surface of one of the side walls 30A is arranged rearward of the vehicle relative to the main body 41 .

The present invention described in claim 3 is characterized in that the garbage collection vehicle 1 described in claim 1 or claim 2 further comprises a fragrance spraying device 40 for the storage box 20 which has a main body 41 for storing liquid fragrance, and a tube 43 having a spraying section 42 at one end and the other end connected to the main body 41, the main body 41 and the tube 43 being arranged on the outer surface of the wall of the storage box 20, the spraying section 42 being arranged in a through hole that penetrates the wall of the storage box 20, and which sprays fragrance from the spraying section 42 into the storage box 20 .

The present invention as described in claim 4 is a garbage collection vehicle 1 as described in claim 1 or claim 2 , which is equipped with an engine that drives the vehicle, a PTO that extracts power from the engine, and a spray control device 50 that controls the spray of fragrance from the fragrance spray device 40, and is characterized in that the spray control device 50 has fragrance spray patterns including a first pattern that allows the spray of fragrance when the engine is running, a second pattern that allows the spray of fragrance when the PTO is on, and a third pattern that does not allow the spray of fragrance.

The present invention described in claim 5 is characterized in that, in the garbage collection vehicle 1 described in claim 4 , the spray control device 50 has, as spray interval patterns for the fragrance in the first pattern or the second pattern, a strong pattern in which spraying and pausing are alternated and the spray time is longer than the pause time, a weak pattern in which spraying and pausing are alternated and the spray time is shorter than the pause time, and a continuous pattern in which spraying is performed continuously.

The present invention described in claim 6 is characterized in that, in the garbage collection vehicle 1 described in claim 5 , the spray control device 50 is provided with a pattern selection unit 53 that automatically selects at least one of a spray pattern and a spray interval pattern.

The present invention as set forth in claim 7 is characterized in that in the refuse collection vehicle 1 as set forth in claim 6 , the pattern selection unit 53 selects a spray pattern or a spray interval pattern based on the position of the vehicle itself.

The present invention as set forth in claim 8 is characterized in that in the refuse collection vehicle 1 as set forth in claim 6 , the pattern selection section 53 selects a spray pattern or a spray interval pattern based on the speed of the subject vehicle.

The present invention as set forth in claim 9 is characterized in that in the garbage collection vehicle 1 as set forth in claim 6 , the pattern selection unit 53 selects a spray pattern or a spray interval pattern based on the odor around the inlet 31.

The present invention as set forth in claim 10 is characterized in that in the garbage collection vehicle 1 as set forth in claim 6 , the pattern selection unit 53 selects a spray pattern or a spray interval pattern based on the temperature around the inlet 31.

The present invention as described in claim 11 is characterized in that, in the garbage collection vehicle 1 as described in claim 6 , the pattern selection unit 53 selects a spray pattern or a spray interval pattern based on the facial expression of the worker who puts the garbage in.

FIG. 1 is an external view of a garbage collection vehicle according to an embodiment of the present invention; FIG. 13 is a perspective view showing the state in which the opening and closing door of the input box is open. FIG. 1 shows the fragrance spray device attached to the garbage collection vehicle. FIG. 1 shows the state in which the input box is turned over. Block diagram of the spray control device

A garbage collection vehicle according to a first embodiment of the present invention comprises a crew cabin for workers who collect garbage, a garbage collection box having an opening through which garbage is dropped off, a storage box arranged between the crew cabin and the garbage collection box for storing the garbage, and a fragrance sprayer for spraying fragrance. The fragrance sprayer has a main body for storing liquid fragrance, and a tube having a spray section for spraying fragrance at one end and the other end connected to the main body, the main body and the tube being arranged on the outer surface of one side wall of the garbage collection box, the spray section being arranged in a through hole that penetrates one side wall of the garbage collection box, and the spray section sprays fragrance from the spray section towards the opening.
According to this embodiment, the perfume can be sprayed to reduce odors and improve the working environment during garbage collection, etc. In addition, by disposing the spray part in the through hole in the side wall, it is not necessary to install a tube connecting the main body and the spray part inside the box, so there is no risk of the tube being damaged by contact with the garbage that is put in.

A second embodiment of the present invention is a refuse collection vehicle according to the first embodiment, in which one end of a tube arranged on the outer surface of one of the side walls is arranged rearward of the vehicle body.
According to this embodiment, when the input box is turned upward, the liquid aromatic stored in the main body can be prevented from spilling out of the spray section.

A third embodiment of the present invention is a refuse collection vehicle according to the first or second embodiment, wherein the fragrance spraying device atomizes a liquid fragrance inside the main body.
According to this embodiment, the aromatic material is more easily atomized than when it is sent to the spray unit in liquid form and sprayed as a mist. The fine aromatic particles released from the spray unit float and spread evenly in the space around the injection port, allowing the aromatic material to be diffused efficiently.

A fourth embodiment of the present invention is a refuse collection vehicle according to the third embodiment, in which the length of the tube disposed on the outer surface of one of the side walls is 50 cm or less.
According to this embodiment, it is possible to prevent the aromatic material atomized inside the main body from returning to a liquid state inside the tube before reaching the spray section.

A fifth embodiment of the present invention is a garbage collection vehicle according to any one of the first to fourth embodiments, further comprising a fragrance spraying device in which the main body and tube are arranged on the outer surface of the wall of the storage box, the spraying section is arranged in a through hole penetrating the wall of the storage box, and the fragrance is sprayed from the spraying section into the storage box.
According to this embodiment, the odor inside the storage box can be improved.

A sixth embodiment of the present invention is a garbage collection vehicle according to any one of the first to fourth embodiments, which is equipped with an engine for driving the vehicle, a PTO for extracting power from the engine, and a spray control device for controlling the spraying of fragrance from the fragrance spray device, and the spray control device has fragrance spray patterns including a first pattern that allows the spraying of fragrance when the engine is running, a second pattern that allows the spraying of fragrance when the PTO is on, and a third pattern that does not allow the spraying of fragrance.
According to this embodiment, it is possible to select a spray pattern according to the situation and spray the aromatic.

A seventh embodiment of the present invention is a garbage collection vehicle according to the sixth embodiment, in which the spray control device has, as spray interval patterns for the fragrance in the first or second pattern, a strong pattern in which spraying and pausing are alternated and the spray time is longer than the pause time, a weak pattern in which spraying and pausing are alternated and the spray time is shorter than the pause time, and a continuous pattern in which spraying is performed continuously.
According to this embodiment, it is possible to select a spray interval pattern according to the situation and spray the aromatic.

In an eighth embodiment of the present invention, in the refuse collection vehicle according to the seventh embodiment, the spray control device is provided with a pattern selection section which automatically selects at least one of a spray pattern and a spray interval pattern.
According to this embodiment, the selection of the spray pattern and the selection of the spray interval pattern are performed automatically, thereby reducing the labor required for an operator to operate the spray control device.

A ninth embodiment of the present invention is a refuse collection vehicle according to the eighth embodiment, in which the pattern selection section selects a spray pattern or a spray interval pattern based on the position of the vehicle itself.
According to this embodiment, the spray of the fragrance can be automatically controlled according to the position of the vehicle.

A tenth embodiment of the present invention is a refuse collection vehicle according to the eighth embodiment, wherein the pattern selection section selects a spray pattern or a spray interval pattern based on the speed of the vehicle itself.
According to this embodiment, the spray of the fragrance can be automatically controlled in accordance with the speed of the vehicle.

An eleventh embodiment of the present invention is a refuse collection vehicle according to the eighth embodiment, in which the pattern selection section selects a spray pattern or a spray interval pattern based on the odor around the drop-in opening.
According to this embodiment, the spray of the fragrance can be automatically controlled according to the odor.

A twelfth embodiment of the present invention is a refuse collection vehicle according to the eighth embodiment, in which the pattern selection section selects a spray pattern or a spray interval pattern based on the temperature around the inlet.
According to this embodiment, the spray of the fragrance can be automatically controlled in accordance with the temperature.

A thirteenth embodiment of the present invention is a garbage collection vehicle according to the eighth embodiment, in which the pattern selection unit selects a spray pattern or a spray interval pattern based on the facial expression of a worker who puts garbage in.
According to this embodiment, the spray of the fragrance can be automatically controlled in response to the facial expression of the worker.

A garbage collection vehicle according to an embodiment of the present invention will now be described.
Fig. 1 shows the external appearance of a refuse collection vehicle according to this embodiment, with Fig. 1(a) being a side view and Fig. 1(b) being a rear view, and Fig. 2 is a perspective view showing a state in which the opening and closing door of a refuge box is open.
The refuse collection vehicle 1 has, in order from the front of the vehicle, a passenger compartment 10, a storage box 20, and a dump box 30. The passenger compartment 10 is provided with a driver's seat and a passenger seat for workers who collect refuse. The dump box 30 has a dump port 31 at the rear through which the worker dumps refuse, and side walls 30A and 30B are covered with side panels 32. The storage box 20 is connected to the dump box 30 and dumps refuse dumped through the dump port 31. The dump port 31 is provided with an opening/closing door 33 that opens and closes vertically. In addition, a garbage loading device 34 is provided in the dump port 31 to push the dumped refuse (garbage) into the storage box 20.
The refuse collection vehicle 1 also includes an engine that drives the vehicle itself and a PTO that extracts power from the engine. A refuse loading device 34 that operates when loading refuse obtains power from the engine of the vehicle itself via the PTO.

Figure 3 shows the fragrance spray device attached to a garbage collection truck, where Figure 3(a) shows the outer surface of the side wall of the drop box with the side panel removed, and Figure 3(b) shows the inner surface of the side wall.
The refuse collection vehicle 1 is equipped with a fragrance spraying device 40 that sprays a fragrance into the inlet 31. The fragrance spraying device 40 has a main body 41 that stores a liquid fragrance, and a tube 43 that is provided with a spraying section 42 that sprays the fragrance at one end and is connected to the main body 41 at the other end.
The main body 41 contains a cartridge containing a liquid fragrance in a stainless steel housing 41A. A communication part 41B communicating with the outside is provided on the top surface of the housing 41A, and the other end of the tube 43 is connected to the communication part 41B. The fragrance stored in the cartridge comes out of the communication part 41B, passes through the tube 43, and is sprayed from the spray part 42. Although the communication part 41B can be provided on a place other than the top surface of the housing 41A, it is preferable to provide it on the top surface in order to minimize the possibility of the liquid fragrance spilling out due to vibrations during driving or garbage collection work.
In this embodiment, a stainless steel nozzle is used as the spray part 42, and this nozzle 42 is connected to one end of a resin tube 43. The spray part 42 and the tube 43 may be integrally formed.

The main body 41 and tube 43 of the fragrance sprayer 40 are disposed on the outer surface of one side wall (left side wall) 30A of the input box 30 at a position that does not interfere with the opening and closing of the opening and closing door 33 or the operation of the trash loading device 34. The nozzle 42 of the fragrance sprayer 40 is disposed by being inserted into a through hole formed by perforating one side wall 30A, and the nozzle is directed toward the input opening 31.
The tip of the nozzle 42 protrudes slightly from the inner surface of one of the side walls 30A. The tip of the nozzle 42 is surrounded by a cover 44 so that the nozzle 42 is not damaged by trash or the like thrown into the nozzle 42 hitting this protruding portion. The nozzle 42 may be disposed so as not to protrude from the inner surface of one of the side walls 30A.
The fragrance spraying device 40 may be provided on the other side wall (right side wall) 30B of the input box 30, or may be provided on both the one side wall 30A and the other side wall 30B. Atomized fragrance is sprayed from the tip of the nozzle 42 toward the center of the input port 31 (the middle between the one side wall 30A and the other side wall 30B).
Spraying the fragrance from the nozzle 42 toward the input port 31 reduces bad odors, improving the working environment during garbage collection, etc. In addition, by disposing the nozzle 42 in a through hole in the side wall, it is not necessary to install a tube 43 connecting the main body 41 and the nozzle 42 inside the input box 30, so there is no concern that the tube 43 will be damaged by contact with the input garbage, etc. In addition, since it is not necessary to install a tube 43 inside the input box 30, it is possible to relatively easily and at low cost install the fragrance spray device 40 on existing garbage collection vehicles 1.

The fragrance stored in the main body 41 is a liquid medicine formulated to reduce the odor of garbage. In order to reduce the labor of workers, it is preferable that the liquid medicine can be used without diluting it with water or the like. The fragrance spray device 40 may have a function to detect the remaining amount of the liquid medicine and display or notify the user to replenish the medicine when the remaining amount falls below a predetermined amount.
Conventionally, deodorizing chemical spray devices installed on refuse collection vehicles store diluted chemicals in tanks, and use a water pump or the like to guide the liquid chemicals to the spraying position through pipes and tubes, where they are squeezed and sprayed as mist by a nozzle tip or the like attached to the end of the pipe or tube. However, with this method, the mist of chemicals from the nozzle tip or the like falls immediately due to gravity, making it difficult to effectively diffuse it into the atmosphere.
Therefore, the fragrance sprayer 40 according to the present embodiment atomizes the liquid fragrance inside the main body 41. By atomizing the liquid fragrance inside the main body 41, it is easier to disperse the fragrance into fine particles than if the fragrance was sent to the nozzle 42 in liquid form and sprayed as a mist. The fine particles of fragrance released from the nozzle 42 float and spread evenly in the space of the inlet 31, so the fragrance can be diffused efficiently. Furthermore, by dispersing the fragrance into fine particles, stickiness caused by the fragrance adhering to the clothes of the worker is eliminated.
One method of atomizing the fragrance inside the main body 41 is to provide inside the cartridge a pump-up injection section that pumps up and sprays the liquid fragrance, and an air ejection section that has a pump or blower and ejects air, and to eject accelerated air from the air ejection section toward the liquid fragrance being sprayed from the injection section, causing it to collide with the inner wall surface of the cartridge.

The length of the tube 43 arranged on the outer surface of one side wall 30A is preferably 50 cm or less. By making the length of the tube 43 50 cm or less, it is possible to prevent the fragrance atomized inside the main body 41 from returning to a liquid state inside the tube 43 before reaching the nozzle 42.

4A and 4B are diagrams showing the state in which the input box has been turned over, with FIG. 4A being an overall view of the input box as seen from the outside, and FIG. 4B being an enlarged view of the portion in which the fragrance spraying device is attached.
In the process of discharging the garbage from the storage box 20, the garbage collecting vehicle 1's input box 30 turns upwards by about 90 degrees as shown in FIG. 4(a). The fragrance spraying device 40 is fixedly installed on the outer surface of the input box 30, and therefore changes direction as the input box 30 turns. As a result, the communication part 41B provided on the upper surface of the housing 41A faces sideways, and the liquid fragrance stored inside the main body 41 may enter the tube 43 from the communication part 41B and spill out from the nozzle 42. To prevent this, it is possible to provide a check valve in the communication part 41B, but if the number of devices increases, the structure becomes more complicated and the cost increases.
Therefore, in the fragrance spray device 40 according to this embodiment, one end of the tube 43 to which the nozzle 42 is connected is located further rearward in the vehicle than the main body 41. As a result, when the input box 30 rolls upward, one end of the tube 43 is positioned above the main body 41 as shown in Fig. 4(b), preventing the fragrance from spilling out of the nozzle 42. Furthermore, since no check valve or the like is used, the structure is not complicated.

Although not shown in the figures, a fragrance spraying device can be further installed in the storage box 20 to spray fragrance into the storage box 20.
The fragrance spraying device installed in the storage box 20 can be the same as the fragrance spraying device 40 installed in the input box 30. When installed in the storage box 20, the main body 41 and the tube 43 are arranged on the outer surface of the wall of the storage box 20, such as a wall of the surrounding wall of the storage box 20 that is closest to the passenger compartment 10. The spraying unit 42 is also arranged in a through hole that penetrates the same wall to which the main body 41 and the tube 43 are attached.
Providing a fragrance spray device in the storage box 20 can improve the odor inside the storage box 20. For example, after discharging the garbage in the storage box 20 at a garbage disposal site, spraying a fragrance inside the storage box 20 while driving back to the base makes it difficult to sense a bad odor when entering the storage box 20 to clean after arriving at the base. Also, spraying a fragrance inside the storage box 20 before performing maintenance on the garbage collection vehicle 1 can make it difficult to sense a bad odor during maintenance.

The spraying of the fragrance can also be linked to sound or light. In this case, it is preferable to change the sound or light depending on the type of fragrance being sprayed. For example, when spraying a fragrance that evokes forest bathing, the sound can be linked to the chirping of birds, or the light can be linked to the lighting of the area around the insertion port 31 with a green lamp.

FIG. 5 is a block diagram of the spray control device.
The garbage collection vehicle 1 is equipped with a spray control device 50 that controls the spraying of fragrance from the fragrance spray device 40. The spray control device 50 is equipped with a spray pattern control unit 51, a spray interval pattern control unit 52, a pattern selection unit 53, a position acquisition unit 54, a speed acquisition unit 55, an odor acquisition unit 56, a temperature acquisition unit 57, a facial expression classification unit 58, and a memory unit 59.
The spray pattern control unit 51 has three spray patterns for the fragrance: a first pattern that allows the fragrance to be sprayed when the engine is running, a second pattern that allows the fragrance to be sprayed when the PTO is on, and a third pattern that does not allow the fragrance to be sprayed. Since the PTO extracts power from the engine, the engine is always running when the PTO is on. In the first pattern, the fragrance is allowed to be sprayed regardless of whether the PTO is on or off.
When the first pattern is selected, for example, the fragrance can be sprayed while the vehicle is moving. When the second pattern is selected, for example, the fragrance can be sprayed while the garbage loading device 34 is operating, that is, while the worker is collecting garbage. In this way, the fragrance can be sprayed by selecting a spray pattern according to the situation.

The spray interval pattern control unit 52 has, as spray interval patterns of the fragrance in the first pattern or the second pattern, a strong pattern in which spraying and pausing are alternated so that the spray time is longer than the pause time (standby time), a weak pattern in which spraying and pausing are alternated so that the spray time is shorter than the pause time (standby time), and a continuous pattern in which spraying is performed continuously.
For example, in the strong pattern, 50 seconds of spraying is repeated with a 10 second interval, and in the weak pattern, 10 seconds of spraying is repeated with a 50 second interval. In the continuous pattern, the fragrance is continuously sprayed without an interval, but in order to prevent more spraying than necessary, it is preferable to set a limit on the maximum continuous operation time, such as automatically stopping spraying after 10 minutes have passed since the start of spraying.
This allows the fragrance to be sprayed by selecting a spray interval pattern according to the situation, for example, selecting a strong pattern in a place with a strong odor and selecting a weak pattern in a place with a weak odor. Note that the amount of fragrance sprayed may be controlled to vary the strength depending on the amount sprayed per unit time.

The pattern selection unit 53 automatically selects the spray pattern and the spray interval pattern. The spray pattern and the spray interval pattern can be selected and set by the worker or the like, but by having the spray control device 50 select the pattern, the effort required for the worker to operate the spray control device 50 can be reduced.

The pattern selection unit 53 can select a spray pattern or a spray interval pattern based on the position of the vehicle. The position acquisition unit 54 acquires the position of the vehicle by using a global navigation satellite system (GNSS) or the like.
The memory unit 59 stores setting information for locations where fragrance spraying is performed and locations where fragrance spraying is not performed, as well as setting information for the spray pattern and spray interval pattern for each location where fragrance spraying is performed, and setting information for the spray pattern for locations where fragrance spraying is not performed.
Examples of locations where fragrance spraying is performed include garbage collection sites, garbage disposal sites, and the vehicle's car wash, etc. The spray pattern and spray interval pattern for the locations where fragrance spraying is performed are set to, for example, the second pattern and strong pattern for garbage collection sites, the second pattern and weak pattern for garbage disposal sites, and the first pattern and continuous pattern for the vehicle's car wash.
An example of a place where the fragrance is not sprayed is a garbage collection site in an area where residents do not want the fragrance to be emitted. For the place where the fragrance is not sprayed, the third spray pattern is set.
The pattern selection unit 53 selects a spray pattern and a spray interval pattern based on the current position of the vehicle acquired by the position acquisition unit 54 and the setting information stored in the memory unit 59. This reduces the labor of the worker in operating the spray control device 50 because the spray of the fragrance is automatically controlled according to the position of the vehicle, for example, when the PTO is on at a garbage disposal site, the fragrance is automatically sprayed in a weak pattern, and at a certain garbage collection site, the fragrance is not automatically sprayed.

The pattern selection unit 53 can select a spray pattern or a spray interval pattern based on the speed of the vehicle. This automatically controls the spray of the fragrance according to the speed of the vehicle, thereby reducing the effort required of the worker to operate the spray control device 50. The speed of the vehicle is acquired by the speed acquisition unit 55 using a speedometer or the like provided on the vehicle.
Setting information for a spray pattern based on the vehicle speed and setting information for a spray interval pattern are stored in the memory unit 59. Since the refuse collection vehicle 1 does not basically run when the PTO is on, the spray pattern based on the vehicle speed is set to either the first pattern or the third pattern.
When driving at a relatively high speed, the fragrance diffuses too much and the effect of the fragrance spray is low, so the spray pattern and spray interval pattern based on the vehicle's speed are set, for example, by setting a first reference value, a second reference value, and a third reference value, in order from slowest to largest, as speed reference values, and if the speed is less than the first reference value, the first pattern and continuous pattern are selected; if the speed is equal to or greater than the first reference value and less than the second reference value, the first pattern and strong pattern are selected; if the speed is equal to or greater than the second reference value and less than the third reference value, the first pattern and weak pattern are selected; and if the speed is equal to or greater than the third reference value, the third pattern is selected.
The pattern selection unit 53 selects a spray pattern and a spray interval pattern based on the vehicle speed acquired by the speed acquisition unit 55 and the setting information stored in the memory unit 59. As a result, when traveling at a relatively fast speed, no spray or a weak pattern is used, and when traveling at a relatively slow speed, a strong pattern or a continuous pattern is used, thereby maximizing the effect of the fragrance spray, preventing unnecessary spraying, and suppressing the consumption of fragrance.

The pattern selection unit 53 can select a spray pattern or a spray interval pattern based on the odor around the input port 31. This automatically controls the spray of fragrance according to the odor, thereby reducing the effort required of the worker to operate the spray control device 50. The odor acquisition unit 56 acquires the odor around the input port 31 using an odor sensor or the like installed at the input port 31.
The memory unit 59 stores setting information for a spray pattern based on the odor around the insertion port 31 and setting information for a spray interval pattern.
Since the effect of fragrance spray is low when the odor is relatively weak, the spray pattern and spray interval pattern based on the odor around the inlet 31 are set, for example, by setting a first reference value, a second reference value, and a third reference value, in order from lowest, as the reference value for the odor index (= 10 × Log (odor concentration)), and setting the third pattern if the odor index is less than the first reference value, the first pattern and a weak pattern if the odor index is equal to or greater than the first reference value and less than the second reference value, the first pattern and a strong pattern if the odor index is equal to or greater than the second reference value and less than the third reference value, and the first pattern and a continuous pattern if the odor index is equal to or greater than the third reference value.
The pattern selection unit 53 selects a spray pattern and a spray interval pattern based on the odor acquired by the odor acquisition unit 56 and the setting information stored in the memory unit 59. As a result, when the odor is relatively weak, no spray or a weak pattern is used, and when the odor is relatively strong, a strong pattern or continuous pattern is used, thereby maximizing the effect of the fragrance spray, preventing unnecessary spraying, and reducing the amount of fragrance consumed.

The pattern selection unit 53 can select a spray pattern or a spray interval pattern based on the temperature around the inlet 31. This automatically controls the spray of the fragrance according to the temperature, thereby reducing the effort required from the operator to operate the spray control device 50. The temperature around the inlet 31 is acquired by the temperature acquisition unit 57 using a temperature sensor or the like installed at the inlet 31.
The memory unit 59 stores setting information for a spray pattern based on the temperature around the inlet 31 and setting information for a spray interval pattern.
If the ambient temperature is high, the corrosion of the garbage will accelerate and the odor will increase. Therefore, the spray pattern and spray interval pattern based on the temperature around the inlet 31 are set, for example, by setting a first reference value, a second reference value, and a third reference value, in order from the lowest, as reference values for temperature, and setting the third pattern if the temperature is less than the first reference value, the first pattern and a weak pattern if the temperature is equal to or greater than the first reference value and less than the second reference value, the first pattern and a strong pattern if the temperature is equal to or greater than the second reference value and less than the third reference value, and the first pattern and a continuous pattern if the temperature is equal to or greater than the third reference value.
The pattern selection unit 53 selects a spray pattern and a spray interval pattern based on the temperature acquired by the temperature acquisition unit 57 and the setting information stored in the memory unit 59. As a result, when the temperature is relatively low, no spray or a weak pattern is used, and when the temperature is relatively high, a strong pattern or a continuous pattern is used, so that the fragrance can be sprayed before the decay of the garbage accelerates and the effect of this spray prevents an increase in bad odors.

The pattern selection unit 53 can select a spray pattern or a spray interval pattern based on the facial expression of the worker who puts in the trash. This allows the spray of the fragrance to be controlled according to the facial expression of the worker, reducing the effort required for the worker to operate the spray control device 50.
The facial expression classification unit 58 acquires a facial image of the worker depositing the garbage using a camera or the like installed in the deposit box 30, and determines the facial expression, for example, by associating facial feature points extracted from the acquired facial image with feature points of a facial model, and classifies the determined facial expression into one of a normal expression, a slightly unpleasant expression, an unpleasant expression, or a very unpleasant expression.
The memory unit 59 stores setting information for a spray pattern and setting information for a spray interval pattern based on the facial expression of the worker.
Since a worker will have an unpleasant expression when he or she smells a bad odor, the spray pattern and spray interval pattern based on the worker's expression are set as follows: if the expression is classified as "normal", the third pattern; if the expression is classified as "slightly unpleasant", the first pattern and a weak pattern; if the expression is classified as "unpleasant", the first pattern and a strong pattern; and if the expression is classified as "very unpleasant", the first pattern and a continuous pattern.
The pattern selection unit 53 selects a spray pattern and a spray interval pattern based on the facial expression classified by the facial expression classification unit 58 and the setting information stored in the memory unit 59. Although there are individual differences in how odors are perceived, when the worker does not sense a strong foul odor, no spray or a weak pattern is used, and when the worker senses a strong foul odor, a strong pattern or a continuous pattern is used, so that the fragrance can be sprayed according to the worker.

1 Refuse collection vehicle 10 Cab 20 Storage box 30 Drop box 30A One side wall 31 Drop inlet 40 Fragrance spray device 41 Main body 42 Spray unit (nozzle)
43 Tube 50 Spray control device 53 Pattern selection unit

Claims (11)

A crew compartment for waste collectors;
a trash can having an inlet for inserting trash;
a storage box disposed between the passenger compartment and the input box for storing the trash;
and a fragrance spraying device for spraying a fragrance,
The fragrance spraying device has a main body that stores the liquid fragrance, and a tube having a length of 50 cm or less with a spray portion at one end and the other end connected to the main body, the main body and the tube are arranged on the outer surface of one of the side walls of the drop box, at least a part of the spray portion is arranged in a through hole that penetrates the one of the side walls of the drop box, the liquid fragrance is atomized inside the main body, and the fragrance is sprayed from the spray portion toward the drop opening, characterized in that the garbage collection vehicle. The refuse collection vehicle according to claim 1, characterized in that the one end of the tube disposed on the outer surface of the one side wall is disposed rearward of the vehicle body. The garbage collection vehicle as described in claim 1 or claim 2, further comprising a fragrance spraying device for the storage box, the fragrance spraying device having a main body for storing liquid fragrance, a tube having a spraying portion at one end and the other end connected to the main body, the main body and the tube being arranged on the outer surface of the wall of the storage box, the spraying portion being arranged in a through hole that penetrates the wall of the storage box, and the fragrance spraying device for the storage box that sprays the fragrance from the spraying portion into the storage box . The vehicle is provided with an engine for driving the vehicle, a PTO for extracting power from the engine, and a spray control device for controlling the spraying of the fragrance from the fragrance spray device,
The garbage collection vehicle described in claim 1 or claim 2, characterized in that the spray control device has, as spray patterns of the fragrance, a first pattern that allows the spraying of the fragrance when the engine is running, a second pattern that allows the spraying of the fragrance when the PTO is on, and a third pattern that does not allow the spraying of the fragrance. The garbage collection vehicle described in claim 4, characterized in that the spray control device has, as spray interval patterns of the fragrance in the first pattern or the second pattern, a strong pattern in which spraying and pausing are alternated and the spray time is longer than the pause time, a weak pattern in which the spraying and pausing are alternated and the spray time is shorter than the pause time, and a continuous pattern in which the spraying is performed continuously. 6. The refuse collection vehicle according to claim 5 , wherein the spray control device includes a pattern selection unit that automatically selects at least one of the spray pattern and the spray interval pattern. 7. The refuse collection vehicle according to claim 6 , wherein the pattern selection unit selects the spray pattern or the spray interval pattern based on a position of the vehicle. 7. The refuse collection vehicle according to claim 6 , wherein the pattern selection unit selects the spray pattern or the spray interval pattern based on a speed of the vehicle. 7. The refuse collection vehicle according to claim 6 , wherein the pattern selection unit selects the spray pattern or the spray interval pattern based on an odor around the drop-in opening. 7. The refuse collection vehicle according to claim 6 , wherein the pattern selection unit selects the spray pattern or the spray interval pattern based on a temperature around the inlet. 7. The refuse collection vehicle according to claim 6 , wherein the pattern selection unit selects the spray pattern or the spray interval pattern based on an expression of the worker who deposits the refuse.