JP7353159B2 - garbage collection truck - Google Patents

Description

The present invention relates to a garbage collection vehicle.

DESCRIPTION OF RELATED ART Conventionally, the garbage collection vehicle which carries a garbage storage box on a vehicle chassis is known. Some of these garbage collection vehicles are equipped with a function to detect overloading of the garbage storage box. For example, Patent Document 1 discloses a differential carrier that is provided below the garbage storage box and accommodates a differential gear, and an overload detection device that is installed on the bottom plate of the garbage storage box and detects the distance between the differential carrier. A garbage collection vehicle is disclosed. In this garbage collection vehicle, the garbage storage box is mounted on a chassis frame supported by an undercarriage including a differential gear, and its vertical position changes depending on the load. The garbage collection vehicle is configured to determine whether it is overloaded based on the distance between the differential carrier and the overload detection device detected by the overload detection device.

Japanese Patent Application Publication No. 2019-112176

In the garbage collection vehicle disclosed in Patent Document 1, a threshold value for determining whether or not the vehicle is overloaded can be changed by the operator operating the operation unit of the overload detection device. Thereby, the load capacity in the fully loaded state can be changed to a desired load capacity. However, it is not always easy to change the fully loaded state of the vehicle to a desired load by changing the numerical value of the threshold value. In the garbage collection vehicle disclosed in Patent Document 1, the overloading determination threshold is "distance", and the desired loading amount is, for example, "weight" or "volume". Therefore, it is not necessarily easy to determine how much the threshold value should be changed to achieve the desired fully loaded state.

Furthermore, in the garbage collection vehicle described in Patent Document 1, the operation section for setting the numerical value of the threshold value is provided integrally with the overload detection device, and the overload detection device is provided on the bottom plate of the garbage storage box. It is provided. Therefore, in order to change the threshold value, the operator needs to crawl under the garbage storage box or dump the garbage storage box. Therefore, changing the setting of the threshold value has become troublesome.

The present invention has been made in view of this point, and its purpose is to propose a garbage collection vehicle that can more easily change the setting of the fully loaded state.

The garbage collection vehicle according to the present invention includes a vehicle chassis, a garbage storage box mounted on the vehicle chassis, and a detected part attached to the garbage storage box and provided on the vehicle chassis or the ground in a vertical direction. an overload determining device connected to the detection device; and a setting operation section provided apart from the detection device, connected to the detection device, and configured to configure the detection device. and. The vehicle platform is provided with a support mechanism that supports the garbage storage box so that it moves downward when the load increases and moves upward when the load decreases. The detection device includes a first registration section and a first transmission section. The first registration unit registers, as a first registration distance, a vertical distance between the detected part or the ground when a predetermined first operation is performed on the setting operation unit. do. The first transmitter transmits a first signal to the overload determining device when a vertical distance between the detected unit or the ground becomes equal to or less than the first registered distance. The overload determining device includes a determining section that determines that the garbage storage box is fully loaded upon receiving the first signal.

According to the above-mentioned garbage collection vehicle, the distance between the detection device and the detected part or the ground when the first predetermined operation is performed on the setting operation section is registered as the distance corresponding to the fully loaded state. be done. Therefore, by performing the first operation with the actual loading amount set to the loading amount desired by the operator, the actual loading amount at that time can be set as the loading amount in the fully loaded state. In addition, since the setting operation section is located away from the detection device, the detection device can be operated without the need for dumping the garbage storage box or crawling under the garbage storage box as in the case of conventional methods. Can be configured. This allows the fully loaded state setting to be changed more easily.

According to a preferred aspect of the present invention, the garbage collection vehicle includes a garbage input box having an input port into which garbage is input and connected to the garbage storage box, and a garbage collection vehicle that includes a garbage input box that has an input port into which garbage is input, and a garbage input box that is connected to the garbage storage box. The apparatus further includes a garbage loading device for feeding the garbage into the garbage storage box. The garbage input box includes a loading operation section having a plurality of operation switches for operating the garbage loading device. The setting operation section includes some operation switches among the plurality of operation switches of the loading operation section.

According to this aspect, the setting operation section for setting the detection device is a part of the operation switch of the loading operation section for operating the garbage loading device. Therefore, the loading operation section for operating the garbage loading device and the setting operation section for registering the fully loaded state can be used together, and the number of members can be reduced compared to, for example, a case where a dedicated setting operation section is provided. Furthermore, according to this aspect, the worker operates the loading operation section to confirm that the garbage storage box is actually fully loaded, and then registers the fully loaded condition without moving from the location. I can do it. Therefore, the fully loaded state can be registered smoothly.

According to a preferred aspect of the above aspects, the first operation includes simultaneously operating two predetermined operation switches among the plurality of operation switches.

According to this aspect, the fully loaded state is registered by simultaneously operating two operation switches of the loading operation section as the setting operation section. Therefore, it is possible to distinguish between the registration operation of the fully loaded state and the operation of the garbage loading device, and it is possible to suppress erroneous operations by the operator.

According to a preferred aspect of the above aspects, the garbage loading device includes a first end detector that detects a pushing end for pushing garbage into the garbage storage box, and a second end detector that detects a return side end. Equipped with an end detector. The loading operation section includes a return operation switch that moves the garbage loading device to the return side, and an emergency stop operation switch that stops the garbage loading device. The first operation includes simultaneously operating the return operation switch and the emergency stop operation switch while the second end detector is detecting the return end.

According to this aspect, the fully loaded state is registered by simultaneously operating the return operation switch and the emergency stop operation switch while the garbage loading device is located at the return side end. Operating the return operation switch while the garbage loading device is located at the return end, and operating the emergency stop operation switch while the garbage loading device is located at the return end. In some cases, the garbage loading device may not operate. Therefore, the fully loaded state can be registered more safely. In addition, when the garbage loading device is fully loaded, even if the garbage loading device is operated, the garbage put into the input port will not enter the garbage storage box, and while it is difficult to position the garbage loading device at the pushing end, the garbage loading device can be easily located at the return end. By setting the state in which the fully loaded state can be registered at the return end rather than the pushing end, it is possible to prevent the problem that the fully loaded state cannot be registered because the position of the garbage loading device does not reach the end.

According to a preferred aspect of the present invention, the detection device includes a second registration section and a second transmission section. The second registration section registers a distance between the detected section or the ground when a predetermined second operation is performed on the setting operation section as a second registered distance. The second transmitter transmits a second signal to the overload determining device when a vertical distance between the detected unit or the ground becomes equal to or greater than the second registered distance. The determination unit is configured to determine that the garbage storage box is empty when receiving the second signal.

According to this aspect, the distance between the detection device and the detected part or the ground when the predetermined second operation is performed on the setting operation section is registered as the distance corresponding to the empty state. . Therefore, by performing the second operation with the actual loading amount set to the loading amount desired by the operator, the actual loading amount at that time can be set as the loading amount in the empty state. This allows the empty state setting to be changed more easily. Note that the actual loading amount when registered as empty may or may not be zero.

According to a preferred aspect of the embodiments including the second registration section, the garbage collection vehicle includes a garbage input box having an input port into which garbage is input and connected to the garbage storage box, and a garbage input box connected to the garbage storage box; The apparatus further includes a garbage loading device that feeds the garbage placed in the box into the garbage storage box. The garbage input box includes a loading operation section having a plurality of operation switches for operating the garbage loading device. The setting operation section includes some operation switches among the plurality of operation switches of the loading operation section. The second operation includes simultaneously operating two predetermined operation switches among the plurality of operation switches.

According to this aspect, the setting operation section is a part of the operation switch of the loading operation section that operates the garbage loading device, and the empty state is registered by simultaneously operating the two operation switches of the loading operation section. be done. Therefore, the setting operation section for operating the garbage loading device and the setting operation section for registering the empty state can be used together, and the number of members can be reduced compared to, for example, a case where a dedicated setting operation section is provided. Furthermore, since the second operation is an operation of pressing two operation switches at the same time, it is possible to distinguish between the operation of registering the empty state and the operation of the garbage loading device, and it is possible to suppress erroneous operations by the operator. Further, according to this aspect, the worker operates the loading operation section to confirm that the garbage storage box is actually empty, and then registers the empty state without moving from the place. I can do it. Therefore, the empty state can be registered smoothly.

According to a preferred aspect of the above aspects, the garbage loading device includes a first end detector that detects a pushing end for pushing garbage into the garbage storage box, and a second end detector that detects a return side end. Equipped with an end detector. The loading operation section includes a push operation switch that moves the garbage loading device to the push side, and an emergency stop operation switch that stops the garbage loading device. The second operation includes simultaneously operating the push-in operation switch and the emergency stop operation switch while the first end detector detects the push-side end.

According to this aspect, the empty state is registered by simultaneously operating the push operation switch and the emergency stop operation switch while the garbage loading device is located at the push side end. By operating the push-in operation switch while the device is located at the push-in end, and by operating the emergency stop switch while the garbage loading device is located at the push-in end, The garbage loading device does not work. Therefore, the empty state can be registered more safely.

According to a preferred aspect of the embodiments including the second registration section, the detection device includes a third registration section and a third transmission section. The third registration unit registers a distance that divides the first registered distance and the second registered distance at a predetermined ratio as a third registered distance. The third transmitter transmits a third signal to the overload determining device when the distance in the vertical direction between the detected part or the ground becomes equal to or less than the third registered distance. The determination unit is configured to determine, upon receiving the third signal, that the load capacity of the garbage storage box relative to the fully loaded state is greater than or equal to a predetermined ratio.

According to this aspect, it can be determined that the loading amount is equal to or greater than a predetermined loading amount between the loading amount in the fully loaded state and the loading amount in the empty state.

According to the above-mentioned garbage collection vehicle, the fully loaded state setting can be changed more easily.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side view of the garbage collection vehicle based on embodiment of this invention. It is a rear view showing a part of the chassis of the garbage collection vehicle and a garbage storage box. It is a side view showing a part of garbage loading device concerning a 1st embodiment. It is a side view showing another part of the garbage loading device concerning a 1st embodiment. It is a figure showing one state of the reversal process of the garbage loading device concerning a 1st embodiment. It is a figure showing one state of the descending process of the garbage loading device concerning a 1st embodiment. It is a figure showing one state of the compression process of the garbage loading device concerning a 1st embodiment. It is a figure showing one state of the raising process of the garbage loading device concerning a 1st embodiment. It is an operation cycle diagram of the garbage loading device concerning a 1st embodiment. FIG. 2 is a perspective view of a loading operation section according to the first embodiment. It is a control block diagram of the garbage collection vehicle concerning a 1st embodiment. It is a side view of the garbage loading device concerning a 2nd embodiment. It is an operation cycle diagram of the garbage loading device concerning a 2nd embodiment. It is a perspective view of the loading operation part concerning a 2nd embodiment.

(First embodiment)
As shown in FIG. 1A, the garbage collection vehicle 1 according to the present embodiment includes a chassis 2, a garbage storage box 3 mounted on the chassis 2, and a garbage input box 4 connected to the garbage storage box 3. . A driver's cab 1A is provided in front of the garbage storage box 3. As shown in FIGS. 1A and 1B, the chassis 2 includes a pair of wheels 21 on the front side and a rear side, an axle 22 on the front side and the rear side that connects each of the pair of wheels 21, and an axle 22 connected to the axle 22. It includes a differential gear 23, a chassis frame 25 that supports the garbage storage box 3 and the garbage input box 4, and a suspension 26 that supports the chassis frame 25. The differential gear 23 transmits the driving force of an engine (not shown) to the axle 22. The differential gear 23 is housed in a differential carrier 24 (gear box) formed, for example, by casting. The suspension 26 is a mechanism that absorbs vibrations and the like when the garbage collection vehicle 1 is running. The suspension 26 also functions as a mechanism for changing the vertical position of the chassis frame 25 with respect to the wheels 21, axle 22, differential gear 23, differential carrier 24, etc., depending on the loading amount of the garbage storage box 3.

As shown in FIG. 1B, the garbage storage box 3 is provided above the differential carrier 24. A detection device 60 is attached to the garbage storage box 3 to measure the distance in the vertical direction from the detected portion 24 a provided on the differential carrier 24 of the vehicle chassis 2 . Specifically, a pair of left and right vehicle body frames 27 extending in the longitudinal direction of the vehicle are provided on the bottom plate portion of the garbage storage box 3. A pair of left and right vehicle body frames 27 are placed on the chassis frame 25, respectively. The detection device 60 is attached to the garbage storage box 3 via the vehicle body frame 27. Specifically, one of the pair of left and right vehicle body frames 27 includes a mounting bracket 27a for fixing the detection device 60. The mounting bracket 27a extends from the inner surface of the one vehicle body frame 27 in the vehicle width direction to the center portion in the vehicle width direction. The detection device 60 is attached to the tip of the mounting bracket 27a. The detection device 60 is arranged between the lower surface of the garbage storage box 3 and the detected portion 24a of the differential carrier 24 by the mounting bracket 27a.

The detection device 60 is, for example, an optical sensor such as a laser sensor. As shown in FIG. 1B, the detection device 60 includes a detection unit 67 that measures the distance to the target object. The detection unit 67 includes a light projecting unit 67a that emits detection light, and a light receiving unit 67b that receives reflected light from an object. Here, the detection unit 67 irradiates light downward. The detected portion 24a of the differential carrier 24 faces the detection portion 67 in the vertical direction. The detected portion 24a is composed of a flat surface facing upward.

The distance between the detection device 60 and the detected portion 24a varies depending on the loading amount of the garbage storage box 3. Since the chassis frame 25 supporting the garbage storage box 3 is supported by the suspension 26, the garbage storage box 3 sinks downward as the load capacity of the garbage storage box 3 increases. Conversely, as the load capacity of the garbage storage box 3 decreases, the garbage storage box 3 moves upward. The chassis frame 25 and the suspension 26 constitute a support mechanism that supports the garbage storage box 3 so that it moves downward when the load increases, and moves upward when the load decreases. The detection device 60 detects a change in the distance between the garbage storage box 3 and the detected part 24a due to a change in the vertical position of the garbage storage box 3.

In addition, in this embodiment, although the detection device 60 is provided below the garbage storage box 3, the position of the detection device 60 is not limited to this. Further, the detected portion may not be provided in the differential carrier 24. The detection device 60 only needs to be directly or indirectly attached to the garbage storage box 3 so that the positional relationship with the garbage storage box 3 is immovable, and the detected part changes depending on the vertical position of the garbage storage box 3. It is sufficient if it is installed in a place that does not move. The detection method of the detection device 60 is also not limited to the optical method.

Furthermore, if the vertical position of the garbage storage box 3 changes, the vertical distance between the detection device 60 and the ground also changes, so the detection device 60 measures the vertical distance between the detection device 60 and the ground. Good too.

As shown in FIG. 2, the garbage input box 4 is supported by a support pin 5 above the opening 3a of the garbage storage box 3. An input port 7 is formed at the rear of the garbage input box 4. The garbage 55 is charged into the garbage input box 4 through the input port 7.

As shown in FIG. 2, a garbage loading device 8 is arranged inside the garbage input box 4. The garbage loading device 8 compresses the garbage 55 thrown into the garbage input box 4 and sends it to the garbage storage box 3. As shown in FIG. 1A, the garbage input box 4 includes a loading operation section 39 having a plurality of operation buttons 39a to 39e (see FIG. 9) for operating the garbage loading device 8. The loading operation section 39 is provided at the rear of the garbage input box 4.

As shown in FIG. 3, a guide groove member 9 is provided on the left side wall and the right side wall of the garbage disposal box 4, and the guide groove member 9 extends rearward and diagonally downward. The garbage loading device 8 includes a sliding plate 10 and a rotatable guide roller 11 attached to the sliding plate 10. The guide roller 11 is slidably engaged with the guide groove member 9.

A boss portion 19 is formed on the upper side of the sliding plate 10 . The support shaft 12 is inserted through the boss portion 19 . A sliding cylinder 13 made of a hydraulic cylinder is connected to the support shaft 12 . The sliding cylinder 13 extends rearward and obliquely downward from the support shaft 12. The sliding cylinder 13 includes a cylinder rod 13a connected to the support shaft 12, and a cylinder tube 13b attached to the side wall of the garbage input box 4. The sliding plate 10 reciprocates up and down along the guide groove member 9 by this expansion and contraction movement of the sliding cylinder 13. Although two sliding cylinders 13 are provided in this embodiment, the number of sliding cylinders 13 is not particularly limited.

As shown in FIG. 2, a compression plate 15 is supported at the lower end of the sliding plate 10 by a shaft 15b so as to be swingable in the longitudinal direction of the vehicle body. A connecting portion 15a is formed behind the shaft 15b of the compression plate 15. A swing cylinder 14 made of a hydraulic cylinder is connected to the connecting portion 15a of the compression plate 15 and the support shaft 12 of the sliding plate 10. This expansion and contraction of the swing cylinder 14 causes the compression plate 15 to swing back and forth. Reference numerals 14a and 14b represent a cylinder tube and a cylinder rod of the swing cylinder 14, respectively. Although two swing cylinders 14 are provided in this embodiment, the number of swing cylinders 14 is not particularly limited.

The garbage loading device 8 performs an inversion process in which the compression plate 15 is swung backwards when the sliding plate 10 is in the raised position (see FIG. 4), and a reversing process in which the compression plate 15 is swung backwards when the compression plate 15 is in the rear position. A lowering process in which the sliding plate 10 is slid downward (see FIG. 5), a compression process in which the compression plate 15 is rocked forward when the sliding plate 10 is in the lowered position (see FIG. 6), and a compression process in which the compression plate 15 is moved to the forward position. It is configured to operate in such a way that a rising process (see FIG. 7) in which the sliding plate 10 is slid upward at a certain time is one cycle. The garbage loading device 8 loads the garbage 55 thrown into the garbage input box 4 into the garbage storage box 3 by performing the above cycle. Note that FIG. 8 is an operation cycle diagram showing the above cycle by the locus of the tip of the compression plate 15.

As shown in FIG. 3, the garbage collection vehicle 1 has a rise limit switch 31 that detects when the length of the sliding cylinder 13 has reached the maximum length, and a rise limit switch 31 that detects when the length of the sliding cylinder 13 has reached the minimum length. A lowering limit switch 32 is provided to detect this. As shown in FIG. 8, the rise limit switch 31 can detect that the sliding plate 10 has reached the rise position 31A. The lower limit switch 32 can detect that the sliding plate 10 has reached the lowered position 32A. The configurations of the upward limit switch 31 and the downward limit switch 32 are not limited at all, and may be, for example, proximity switches. The upward limit switch 31 and the downward limit switch 32 may be contact type switches or non-contact type switches. As shown in FIG. 3, in this embodiment, a bracket 13c that projects rearward is formed on the cylinder rod 13a, and a metal plate 33 is fixed to the bracket 13c. The ascending limit switch 31 and the descending limit switch 32 are configured to transmit a detection signal to the control device 40 (see FIG. 10) when the metal plate 33 approaches.

As shown in FIG. 2, the garbage collection vehicle 1 has a reversing limit switch 35 that detects when the length of the swing cylinder 14 has reached the minimum length, and a reverse limit switch 35 that detects when the length of the swing cylinder 14 has reached the maximum length. A compression limit switch 36 is provided to detect this. As shown in FIG. 8, the reversal limit switch 35 can detect that the compression plate 15 has reached the rear position 35A. The compression limit switch 36 can detect that the compression plate 15 has reached the forward position 36A. As shown in FIG. 2, the inversion limit switch 35 and the compression limit switch 36 are attached to a bracket 37 connected to the sliding plate 10, and are configured to move up or down together with the sliding plate 10. The inversion limit switch 35 and the compression limit switch 36 are also constituted by, for example, a proximity limit switch. However, the configurations of the inversion limit switch 35 and the compression limit switch 36 are not particularly limited either. In this embodiment, a metal plate 38 is fixed to the cylinder tube 14a of the swing cylinder 14. The reversing limit switch 35 and the compression limit switch 36 are configured to send a detection signal to the controller 40 when the metal plate 38 approaches.

In the cycles of the reversing process (see FIG. 4), the descending process (see FIG. 5), the compression process (see FIG. 6), and the ascending process (see FIG. 7), the compression plate 15 is compressed as the swing cylinder 14 contracts. It swings backwards and a reversal process takes place. Subsequently, the sliding plate 10 is lowered as the sliding cylinder 13 is extended, and a lowering process is performed. Furthermore, as the swing cylinder 14 expands, the compression plate 15 swings forward, and a compression process is performed. Further, as the sliding cylinder 13 contracts, the sliding plate 10 rises, and a rising process is performed.

During the cycle, the state shown in FIG. 4 is a state in which the garbage loading device 8 has pushed the garbage 55 into the garbage storage box 3 the most. At this time, as shown in FIG. 8, the sliding cylinder 13 is located at the raised position 31A, and the sliding plate 10 is located at the uppermost side. Further, at this time, the swing cylinder 14 is located at the forward position 36A, and the compression plate 15 is located at the most forward side. Hereinafter, the state of the garbage loading device 8 in which the sliding plate 10 is located at the uppermost side will be referred to as "the state at the push-in end". At the push-in end, the sliding cylinder 13 is located at the raised position 31A, and the sliding plate 10 is located at the uppermost side. At the pushing end, a rising limit switch 31 is transmitting a signal. The upward limit switch 31 is an example of an end detector that detects the pushing end of the garbage 55 into the garbage storage box 3.

During the cycle, the state shown in FIG. 6 is a state in which the garbage loading device 8 is returned to the rear side. At this time, the sliding cylinder 13 is located at the lowered position 32A, and the sliding plate 10 is located at the lowest position. Hereinafter, the state of the garbage loading device 8 in which the sliding plate 10 is located at the lowest position will be referred to as the "state at the return end". At the return end, the sliding cylinder 13 is located at the lowered position 32A, and the sliding plate 10 is located at the lowest position. At the return end, a lower limit switch 32 is sending a signal. The lower limit switch 32 is an example of an end detector that detects the end on the return side.

By operating the loading operation section 39 provided on the side of the input port 7 of the garbage input box 4, the garbage loading device 8 can be operated. As shown in FIG. 9, the loading operation section 39 here includes five operation buttons 39a to 39e for operating the garbage loading device 8. However, the operation buttons 39a to 39e are only examples of operation switches for operating the garbage loading device 8, and operation switches of a mode other than push button switches may be used. Here, the loading operation section 39 includes a loading button 39a, a lowering button 39b, a higher button 39c, a reversing button 39d, and an emergency stop button 39e. As shown in FIG. 10, the loading operation section 39 is connected to a control device 40. Operations on the buttons 39a to 39e of the loading operation section 39 are instructed to the garbage loading device 8 via the control device 40. Specifically, when the loading button 39a is pressed, the garbage loading device 8 performs a cycle of a reversing process, a descending process, a compression process, and a rising process. The lower button 39b, the upper button 39c, and the reverse button 39d are used to manually move the sliding plate 10 or the compression plate 15, for example, when the garbage loading device 8 is clogged with garbage 55. Among these, the lowering button 39b is a button that lowers the sliding plate 10 only while being pressed. If the lowering button 39b is kept pressed, the garbage loading device 8 is positioned at the return end. The lower button 39b is an operation switch that moves the garbage loading device 8 to the return side. The rise button 39c is a button that raises the sliding plate 10 only while being pressed. When the rise button 39c is kept pressed, the garbage loading device 8 is positioned at the push-in end. The rise button 39c is an operation switch that moves the garbage loading device 8 to the push side. The reversal button 39d is a button that swings the compression plate 15 backward only while being pressed. The emergency stop button 39e is a button that stops the garbage loading device 8 when pressed.

As shown in FIG. 10, the control device 40 is connected to and receives signals from a rise limit switch 31, a fall limit switch 32, a reverse limit switch 35, a compression limit switch 36, and a loading operation section 39. It is composed of The control device 40 is connected to actuators (for example, electromagnetic valves, indicated as the sliding cylinder 13 and the swinging cylinder 14 in FIG. 10) that expand and contract the sliding cylinder 13 and the swinging cylinder 14, and controls their operations. . The control device 40 may be configured by hardware, or may be realized by executing a predetermined computer program. The control device 40 is configured by, for example, a programmable controller (PLC).

As shown in FIG. 10, an overload determination device 70 is connected to the control device 40. The overloading determining device 70 includes a determining section 71 that determines the loading amount of the garbage storage box 3, and a display section 72 that displays the determination result. The display section 72 is provided in the driver's cab 1A here. The display on the display unit 72 can be checked by the operator in the driver's cab 1A. Similar to the control device 40, the determination unit 71 is configured by, for example, a programmable controller (PLC). A detection device 60 is connected to the overload determination device 70 . The up limit switch 31, the down limit switch 32, the inversion limit switch 35, the compression limit switch 36, and the loading operation section 39 are connected to an overloading determination device 70 via a control device 40. However, some or all of them may be connected to the overload determination device 70 without going through the control device 40.

In the present embodiment, three distances are registered in the detection device 60. The first registered distance corresponds to the distance between the detection device 60 and the detected portion 24a when the garbage storage box 3 is fully loaded. The second registered distance corresponds to the distance between the detection device 60 and the detected portion 24a when the garbage storage box 3 is in an empty state. The third registered distance corresponds to the distance between the detection device 60 and the detected portion 24a when the garbage storage box 3 has a predetermined loading capacity between the fully loaded state and the empty state. The third registered distance is a distance that divides the first registered distance and the second registered distance at a predetermined ratio. Therefore, if the first registered distance and the second registered distance are registered, the third registered distance is also determined and registered. The third registration distance is shorter than the second registration distance and longer than the first registration distance. Note that the number of distances registered in the detection device 60 is not limited to three. For example, a plurality of distances may be registered between the first registered distance and the second registered distance.

Note that, for example, if the detection device 60 is configured to measure the distance between the ground and the ground, the first registered distance is the distance between the detection device 60 and the ground when the garbage storage box 3 is fully loaded. corresponds to the distance between. The second registered distance corresponds to the distance between the detection device 60 and the ground when the garbage storage box 3 is empty. The third registered distance corresponds to the distance between the detection device 60 and the ground when the garbage storage box 3 has a predetermined loading capacity between the fully loaded state and the empty state.

The detection device 60 includes a first registration section 61, a second registration section 62, and a third registration section in which a first registration distance, a second registration distance, and a third registration distance are registered, respectively. Registration or registration change of the distance in the first registration unit 61, second registration unit 62, and third registration unit can be performed by operating an operation panel (not shown) of the detection device 60. Further, as a feature of the garbage collection vehicle 1 according to the present embodiment, the distance registration or registration change in the first registration section 61 and the second registration section 62 can also be performed by another method using the loading operation section 39. be able to. This registration method will be described later.

As shown in FIG. 10, the detection device 60 includes a first transmitter 64, a second transmitter 65, and a third transmitter 66 that transmit signals to the overload determining device 70. The first transmitter 64 sends a first signal (hereinafter also referred to as a full load signal) to the overload determination device 70 when the vertical distance to the detected portion 24a becomes equal to or less than a first registered distance. ). The second transmitting unit 65 sends a second signal (hereinafter also referred to as an empty signal) to the overload determination device 70 when the vertical distance between the detected unit 24a and the detected unit 24a becomes equal to or greater than a second registered distance. ). The third transmitting unit 66 sends a third signal (hereinafter also referred to as an intermediate signal) to the overloading determination device 70 when the vertical distance between the detected unit 24a and the detected unit 24a becomes equal to or less than a third registered distance. ).

The determining unit 71 of the overload determining device 70 determines that the garbage storage box 3 is in a fully loaded state when receiving a full load signal, and determines that the garbage storage box 3 is in an empty state when receiving an empty signal, and outputs an intermediate signal. When received, it is configured to determine that the load capacity of the garbage storage box 3 relative to the fully loaded state is greater than or equal to a predetermined ratio. The predetermined ratio is set to, for example, 30% or 50%. However, it is not particularly limited. If the predetermined ratio is set to, for example, 30%, the third registered distance is set to, for example, a distance that divides the first registered distance and the second registered distance by 3:7. There is.

In this embodiment, the display unit 72 is realized as a monitor lamp installed in the driver's cab 1A. The monitor lamp includes a first lamp 72a, a second lamp 72b, and a third lamp 72c. When the determination unit 71 determines that the garbage storage box 3 is fully loaded, the first lamp 72a displays a display indicating that the garbage storage box 3 is fully loaded. The second lamp 72b displays an indication that the garbage storage box 3 is empty when the determination unit 71 determines that the garbage storage box 3 is empty. The third lamp 72c indicates that when the determining unit 71 determines that the loading amount of the garbage storage box 3 in the fully loaded state is equal to or higher than a predetermined ratio (for example, 30%), the loading amount of the garbage storage box 3 in the fully loaded state is equal to or higher than a predetermined ratio (for example, 30%). A display indicating that the ratio is above a predetermined ratio is displayed. As shown in FIG. 10, the display section 72 further includes a buzzer 72d. The display unit 72 may be configured to temporarily or continuously sound the buzzer 72d when the garbage storage box 3 is determined to be fully loaded.

Hereinafter, a method of registering the first registered distance and the second registered distance in the detection device 60 will be explained while comparing it with a conventional method.

[Conventional method]
Conventionally, there has been a need to change or adjust the registration distance of a detection device corresponding to a fully loaded garbage storage box. For example, if the suspension of a garbage collection vehicle weakens over time, it may be determined that the vehicle is fully loaded even though the load was not initially determined to be fully loaded. Alternatively, for example, there may be a case where the operator wishes to change the determined full capacity to a smaller value because he wants to know as soon as possible that it is close to a physically full state. In such cases, conventionally, the registered distance corresponding to the fully loaded state has been changed by the operator operating an operation panel provided on the detection device and directly inputting the distance. Note that the fully loaded state in the judgment is a guideline, and since the density of garbage varies (in other words, the volume varies even if the weight is the same), the physical fully loaded state and the fully loaded state in the judgment are usually different. different. This also creates a need to adjust the fully loaded state in terms of determination.

When a worker operates the operation panel of the detection device, for example, in a garbage collection vehicle having a configuration similar to this embodiment, the worker needs to crawl below the garbage storage box in order to access the detection device. Therefore, the worker is forced into a cramped working posture.

Further, what is registered in the detection device is "distance", but the desired loading amount is "weight" or "volume". Therefore, it is not always easy to determine how much the registered distance needs to be changed to change the desired loading state to a fully loaded state.

For the reasons mentioned above, it has conventionally been difficult for an operator to change the setting for determining whether a garbage storage box is fully loaded.

[Method of changing registered distance according to this embodiment]
In view of the above problems, the garbage collection vehicle 1 according to the present embodiment is configured to be able to change the first registered distance registered in the detection device 60 by the following method. In changing the first registered distance according to the present embodiment, first, the garbage storage box 3 is actually brought into a desired full state. Next, the garbage loading device 8 is placed at the return end. This operation may be performed using, for example, the lowering button 39b of the loading operation section 39. The fact that the garbage loading device 8 is placed at the return end is detected by the lowering limit switch 32 as a return end detector.

In the first registration distance changing operation, next, a predetermined first operation is performed on the loading operation section 39. In this embodiment, the setting operation section for setting the detection device 60 is made up of some of the plurality of operation switches 39a to 39e of the loading operation section 39. As shown in FIG. 1A, the loading operation section 39 as a setting operation section for setting the detection device 60 is provided apart from the detection device 60. However, the loading operation unit 39 as a setting operation unit is connected to the detection device 60 via the control device 40 and the like. The first registration unit 61 of the detection device 60 registers the distance in the vertical direction from the detected part 24a when a predetermined first operation is performed on the loading operation part 39. It is configured to be registered as a distance. Therefore, the distance between the detection device 60 and the detected portion 24a in the desired fully loaded state actually realized by the worker is registered as the first registered distance (distance corresponding to the fully loaded state).

In this embodiment, the first operation for registering the first registration distance is an operation of simultaneously pressing two predetermined buttons among the plurality of buttons 39a to 39e of the loading operation section 39. Specifically, the first operation is an operation in which the lowering button 39b and the emergency stop button 39e are simultaneously pressed while the lowering limit switch 32 as a return-side end detector detects the return-side end. Here, when the down button 39b and the emergency stop button 39e are simultaneously pressed and held for a predetermined period of time (for example, 10 seconds) or more, the registration is completed. When registration is completed, a buzzer 72d provided on the display section 72 rings for a predetermined time.

The two buttons described above are selected as buttons that, when pressed, will not cause the garbage loading device 8 to perform a loading cycle. Press down the lowering button 39b while the garbage loading device 8 is located at the return end, and press the emergency stop button 39e while the garbage loading device 8 is located at the return end. Depending on the situation, the garbage loading device 8 will not operate. Therefore, the fully loaded state can be safely registered. Further, since the registration operation is the simultaneous pressing of two buttons on the loading operation section 39, the registration operation and the operation of the garbage loading device 8 can be distinguished. Note that the registration work may include work other than the above operations. In the registration work, in addition to the above-mentioned operations, for example, an operation to confirm whether or not to further permit registration may be performed. Moreover, the reason why the fully loaded state is registered when the garbage loading device 8 is located at the return side end is that if this is done at the push side end, the reaction force of the garbage 55 will cause the sliding plate 10 and This is because the compression plate 15 may be pushed and end detection may become unstable.

Next, a change in the empty state, that is, a change in the second registration distance will be explained. In the second registered distance changing operation, the garbage storage box 3 is actually brought into a desired empty state. Next, the garbage loading device 8 is placed at the push-in end. This work may be performed using, for example, the lift button 39c of the loading operation section 39. The fact that the garbage loading device 8 is placed at the push-in end is detected by the upward limit switch 31 as a push-in end detector.

In the second registered distance changing operation, next, a predetermined second operation is performed on the loading operation section 39. The second registration section 62 of the detection device 60 registers the distance in the vertical direction between the detection device 24a and the detected section 24a when a predetermined second operation is performed on the loading operation section 39. It is configured to be registered as a distance. Therefore, the distance between the detection device 60 and the detected part 24a in the desired empty state actually achieved by the operator is registered as the second registered distance (distance corresponding to the empty state). Note that at this time, it is optional whether or not the garbage storage box 3 is actually empty.

In this embodiment, the second operation for registering the second registration distance is also an operation of simultaneously pressing two predetermined buttons among the plurality of buttons 39a to 39e of the loading operation section 39. Specifically, the second operation is an operation of simultaneously pressing the rise button 39c and the emergency stop button 39e while the rise limit switch 31 as a push-side end detector detects the push-side end. Here, when the up button 39c and the emergency stop button 39e are simultaneously pressed and held for a predetermined period of time (for example, 10 seconds) or more, the registration is completed. When registration is completed, a buzzer 72d provided on the display section 72 rings for a predetermined time.

The two buttons described above are also selected as buttons that do not cause the garbage loading device 8 to operate when pressed. Pressing the rise button 39c while the garbage loading device 8 is located at the pushing end; and pressing the emergency stop button 39e while the garbage loading device 8 is located at the pushing end. Depending on the situation, the garbage loading device 8 will not operate. Further, since the registration operation is the simultaneous pressing of two buttons on the loading operation section 39, the registration operation and the operation of the garbage loading device 8 can be distinguished. Note that in the second registration distance registration operation, for example, an operation for confirming whether to further permit registration may be performed.

In this embodiment, the third registered distance is automatically determined by determining the first registered distance and the second registered distance. In addition to changing the registered distance, the initial setting of the registered distance may also be performed by similar operations.

[Operations and effects of the first embodiment]
In the detection device 60 of the garbage collection vehicle 1 according to the present embodiment, the detection device 60 and the detected portion 24a (or the ground) when a predetermined first operation is performed on the loading operation portion 39. The distance in the vertical direction between the two is registered as the first registered distance corresponding to the fully loaded state. Further, in this embodiment, a setting operation section (a part of the operation switch of the loading operation section 39) for setting the detection device 60 is provided apart from the detection device 60. According to the garbage collection vehicle 1, by performing the first operation with the actual loading amount set to the loading amount desired by the operator, the actual loading amount at that time can be set as the loading amount in the fully loaded state. . In addition, since the loading operation unit 39 as a setting operation unit is provided at a location apart from the detection device 60, the operator can set the threshold value without having to crawl under the garbage storage box 3 as in the conventional case. Changes can be made. This allows the fully loaded state setting to be changed more easily.

In this embodiment, the setting operation section for setting the detection device 60 is made up of some of the plurality of buttons 39a to 39e of the loading operation section 39. According to this aspect, the operation panel for operating the garbage loading device 8 and the operation panel for registering the fully loaded state can be used together, and compared to, for example, a case where a dedicated setting operation panel is newly provided, the number of parts is reduced. can be reduced. Further, according to this aspect, after operating the loading operation unit 39 and confirming that the garbage storage box 3 is actually in a fully loaded state, the worker can register the fully loaded state without moving from the location. It can be carried out. Therefore, the fully loaded state can be registered smoothly.

In this embodiment, the first operation includes simultaneously operating two predetermined buttons among the plurality of buttons 39a to 39e of the loading operation section 39. Since the first operation is the simultaneous operation of two buttons, it is possible to distinguish between the operation of registering the fully loaded state and the operation of the garbage loading device 8. Thereby, erroneous operations by the operator can be suppressed.

In this embodiment, the first operation is to simultaneously operate the lowering button 39b and the emergency stop button 39e of the loading operation section 39 while the return end of the garbage loading device 8 is detected. Contains. According to this aspect, the garbage loading device 8 is operated by pressing down the lowering button 39b and pressing the emergency stop button 39e while the garbage loading device 8 is located at the return side end. Therefore, the fully loaded state can be safely registered. In addition, in a fully loaded state, even if the garbage loading device 8 is operated, the garbage thrown into the input port 7 will not enter the garbage storage box 3, and it is difficult to position the garbage loading device 8 at the push-in end. The garbage loading device 8 can easily be located at the return end. By setting the state where the fully loaded state can be registered at the return side end instead of the pushing end, it is possible to prevent the problem that the fully loaded state cannot be registered because the position of the garbage loading device 8 does not reach the end.

In the detection device 60 according to the present embodiment, the detection device 60 and the detected portion 24a (or the ground) when a predetermined second operation is performed on the loading operation section 39 as a setting operation section. The distance between is registered as the second registered distance corresponding to the empty state. According to this aspect, by performing the second operation with the actual loading amount set to the loading amount desired by the operator, the actual loading amount at that time can be set as the loading amount in the empty state. This allows the empty state setting to be changed more easily.

In this embodiment, the second operation includes simultaneously operating two predetermined buttons among the plurality of buttons 39a to 39e of the loading operation section 39. According to this aspect, the operation panel for operating the garbage loading device 8 and the operation panel for registering the empty state can be used together, and compared to, for example, a case where a dedicated setting operation panel is newly provided, the number of parts is reduced. can be reduced. Further, since the second operation is an operation of pressing two buttons at the same time, it is possible to distinguish between the operation of registering the empty state and the operation of the garbage loading device 8. Thereby, erroneous operations by the operator can be suppressed. Further, according to this embodiment, the worker checks the empty state of the garbage storage box 3 by looking into the inside of the garbage storage box 3 through the window of the garbage storage box 3, and then immediately opens the loading operation section 3 near the input port 7. Since two predetermined buttons can be operated, the empty state can be registered smoothly.

In the present embodiment, the second operation includes an operation of simultaneously pressing the rise button 39c and the emergency stop button 39e of the loading operation section 39 while the pushing end of the garbage loading device 8 is detected. I'm here. According to this aspect, the garbage loading device 8 is operated by pressing the rise button 39c and pressing the emergency stop button 39e while the garbage loading device 8 is located at the pushing end. Therefore, the empty state can be safely registered.

The detection device 60 according to the present embodiment includes a third registration unit 63 that registers a distance that divides the first registered distance and the second registered distance at a predetermined ratio as a third registered distance. , it is configured such that it can be determined that the loading amount of the garbage storage box 3 in the fully loaded state is equal to or higher than a predetermined ratio. According to this aspect, it can be determined that the loading amount is equal to or greater than a predetermined loading amount between the loading amount in the fully loaded state and the loading amount in the empty state.

(Second embodiment)
The garbage collection vehicle 1 according to the second embodiment shown in FIG. 11 is the garbage collection vehicle 1 according to the first embodiment with a change in the configuration of the garbage loading device 8. The garbage loading device 8 according to the second embodiment is of a so-called rotating plate type. In the following description, the same parts as in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

The garbage loading device 8 includes a swingable pushing plate 110, a rotatable rotating plate 115, a pushing cylinder 113, and a motor (not shown) that rotates the rotating plate 115. The push plate 110 is supported by the side wall of the garbage input box 4 so as to be swingable in the longitudinal direction of the vehicle body. The pushing cylinder 113 has a cylinder rod 113a connected to the pushing plate 110. The rotating plate 115 is configured to be rotatable about the base end 115a as a fulcrum, and is rotated by a motor (not shown). The garbage loading device 8 is configured to use a rotary plate 115 to scrape up the garbage 55 placed in the garbage input box 4, and to push the garbage 55 into the garbage storage box 3 using a pushing plate 110. The garbage loading device 8 is configured to compress the garbage 55 thrown into the garbage input box 4 and load it into the garbage storage box 3 by combining the rotating operation of the rotary plate 115 and the swinging operation of the pushing plate 110. has been done.

The garbage collection vehicle 1 according to the second embodiment includes a return limit switch 131 that detects the maximum contraction position of the push cylinder 113. The return limit switch 131 is attached to the inner wall of the garbage input box 4, for example, and is constituted by a proximity switch. A metal plate 133 is fixed to the cylinder rod 113a. The return limit switch 131 is configured to send a detection signal to the control device 40 when the metal plate 133 approaches.

The garbage collection vehicle 1 further includes a push limit switch 132 that detects the maximum extension position of the push cylinder 113. The configuration of the push limit switch 132 is similar to the configuration of the return limit switch 131.

Further, the garbage collection vehicle 1 includes a rotation limit switch 135 that detects the rotational position of the rotary plate 115. The rotation limit switch 135 is configured to detect a position where the rotary plate 115 is approximately horizontal in front of the base end 115a (this is the position shown by the imaginary line in FIG. 11, and hereinafter, this position is referred to as the rotation stop position). has been done. The rotation limit switch 135 is attached to the outer wall of the garbage disposal box 4, for example, and is constituted by a proximity switch. A metal plate 138 is fixed to the base end 115a of the rotating plate 115. The rotation limit switch 135 is configured to send a detection signal to the control device 40 when the metal plate 138 approaches.

FIG. 12 is an operation cycle diagram of the garbage loading device 8 according to the second embodiment. The garbage loading device 8 moves the rotating plate 115 from the rotation stop position to a position that does not interfere with the backward swinging movement of the pushing plate 110 when the pushing plate 110 is in the forward position (the position indicated by the imaginary line in FIG. 11). A retraction rotation step in which the pushing plate 110 is rotated to the position shown by the solid line in FIG. a rake-up rotation process in which the push plate 115 is rotated from a position that does not interfere with the backward swinging motion of the push plate 110 to a rotation stop position, and a push plate 110 is rotated from the rear position to the front when the rotary plate 115 is stopped at the rotation stop position. The device is configured to operate in such a way that the pushing process of swinging it to the desired position constitutes one cycle. Note that the return step and part of the rake-up rotation step are performed simultaneously.

When the garbage loading device 8 according to this embodiment is at the pushing end, the pushing cylinder 113 is extended to the maximum extension position, and the pushing plate 110 is placed at the most forward side (the position indicated by the imaginary line in FIG. 11). It is in a state of being At this time, the push limit switch 132 is transmitting a signal. The push-in limit switch 132 is an example of a push-in end detector.

When the garbage loading device 8 according to this embodiment is at the return end, the pushing cylinder 113 is contracted to the maximum contraction position, so that the pushing plate 110 is placed at the rearmost side (the position indicated by the solid line in FIG. 11). It is in a state of being At this time, the return limit switch 131 is transmitting a signal. The return limit switch 131 is an example of an end detector on the return side.

FIG. 13 is a perspective view showing the loading operation section 139 according to this embodiment. As shown in FIG. 13, the loading operation section 139 according to this embodiment includes a loading button 139a, a reverse button 139b, a push button 139c, a return button 139d, and an emergency stop button 139e. When the loading button 139a is pressed, the garbage loading device 8 performs a cycle of an evacuation rotation process, a return process, a rake-up rotation process, and a pushing process. When the reverse rotation button 139b is pressed, the rotating plate 115 rotates in reverse only while the reverse rotation button 139b is pressed. When the push button 139c is pressed, the push plate 110 moves forward only while the push button 139c is pressed. When the push-in button 139c is kept pressed, the push-in plate 110 moves to the frontmost side, and the garbage loading device 8 is positioned at the push-in end. When the return button 139d is pressed, the push plate 110 moves rearward only while the return button 139d is pressed. When the return button 139d is kept pressed, the push plate 110 moves to the rearmost side, and the garbage loading device 8 is positioned at the return end. When the emergency stop button 139e is pressed, the garbage loading device 8 stops. The method of registering the first registered distance and the second registered distance is to replace the up button 39c of the first embodiment with the push button 139c of the present embodiment, and replace the down button 39b of the first embodiment with the return button 139d of the present embodiment. If it is replaced with , it is the same as the first embodiment.

(Other embodiments)
The first embodiment and the second embodiment described above are merely examples of embodiments of the present invention, and the present invention can be implemented in various other forms.

In each of the above embodiments, registration of the fully loaded state was possible when the garbage loading device was located at the return side end, but it was not possible when the garbage loading device was located at the push side end. You can. For example, the first operation may include simultaneously operating the push button and the emergency stop button while the push-side end detector is detecting the push-side end. According to this aspect, it is possible to suppress the possibility that a state in which so much garbage is loaded that the pushing end cannot be detected is registered as a fully loaded state. In that case, the second operation preferably includes simultaneously operating the return button and the emergency stop button while the end detector on the return side is detecting the end on the return side. In other words, the registration of a fully loaded condition is possible when the garbage loading device is located at one end of the pushing and return sides, and the registration of an empty condition is possible when the garbage loading device is located at the other end. It may be configured such that it is possible when located at

In addition, the operating procedure of the loading operation unit related to the registration of the fully loaded state or the empty state is not particularly limited. Further, the setting operation section does not need to be shared with the loading operation section that operates the garbage loading device. The position of the operation switch is also not limited. The operation switch may be provided on the driver's cab, for example.

In each of the above embodiments, the loading amount of the garbage storage box is displayed by a lamp, but the display method is not limited. The display method may be, for example, displaying an image on a panel or the like. The detection device may transmit a signal corresponding to the measured distance, for example, as an analog signal, and in that case, the display of the load amount may be configured to change in real time.

The configurations of the vehicle platform, garbage loading device, etc. described above are merely examples, and are not particularly limited.

Unless otherwise specified, the embodiments do not limit the present invention.

1 Garbage collection vehicle 2 Vehicle chassis 3 Garbage storage box 4 Garbage input box 8 Garbage loading device 24a Detected part 39 Loading operation part (setting operation part)
39b Down button (return operation switch)
39c Rise button (push operation switch)
39e Emergency stop button (emergency stop operation switch)
55 Garbage 60 Detection device 61 First registration section 62 Second registration section 63 Third registration section 64 First transmission section 65 Second transmission section 66 Third transmission section 67 Detection section 70 Overloading determination device 71 Determination section 139c Push button ( push-in operation switch)
139d Return button (return operation switch)
139e Emergency stop button (emergency stop operation switch)

Claims (5)

The chassis and
a garbage storage box mounted on the vehicle chassis;
a garbage input box having an input port into which garbage is input and connected to the garbage storage box;
a garbage loading device that sends the garbage thrown into the garbage input box to the garbage storage box;
a detection device that is attached to the garbage storage box and measures the distance in the vertical direction between a detected part provided on the vehicle chassis or the ground;
an overload determination device connected to the detection device;
a setting operation unit provided apart from the detection device, connected to the detection device, and configured to configure the detection device;
Equipped with
The vehicle platform is provided with a support mechanism that supports the garbage storage box so that it moves downward when the loading amount increases and moves upward when the loading amount decreases,
The garbage loading box includes a loading operation section having a plurality of operation switches for operating the garbage loading device,
The setting operation section includes some operation switches among the plurality of operation switches of the loading operation section,
The garbage loading device includes a first end detector that detects a pushing end for pushing garbage into the garbage storage box, and a second end detector that detects a return end,
The loading operation section includes a push operation switch that moves the garbage loading device to the push side, a return operation switch that moves the garbage loading device to the return side, and an emergency switch that stops the garbage loading device. Equipped with a stop operation switch,
The detection device includes:
a first registration unit that registers a vertical distance between the detected unit or the ground when a predetermined first operation is performed on the setting operation unit as a first registered distance;
a first transmitter that transmits a first signal to the overload determination device when the vertical distance between the detected part or the ground becomes equal to or less than the first registered distance;
Equipped with
The overloading determination device includes a determination unit that determines that the garbage storage box is fully loaded when receiving the first signal,
The first operation includes simultaneously operating the return operation switch and the emergency stop operation switch while the second end detector is detecting the return end, or detecting the first end. The garbage collection vehicle includes simultaneously operating the push-in operation switch and the emergency stop operation switch in a state where the push-in end is detected by the device. The detection device includes:
a second registration unit that registers a distance between the detected unit or the ground when a predetermined second operation is performed on the setting operation unit as a second registered distance;
a second transmitter that transmits a second signal to the overload determination device when the vertical distance between the detected part or the ground becomes equal to or greater than the second registered distance;
Equipped with
The garbage collection vehicle according to claim 1, wherein the determination unit is configured to determine that the garbage storage box is empty upon receiving the second signal. The garbage collection vehicle according to claim 2 , wherein the second operation includes simultaneously operating predetermined two operation switches among the plurality of operation switches of the loading operation section . 4. The second operation includes simultaneously operating the push-in operation switch and the emergency stop operation switch while the first end detector is detecting the push-side end. garbage collection truck. The detection device includes:
a third registration unit that registers a distance dividing the first registered distance and the second registered distance at a predetermined ratio as a third registered distance;
a third transmitter that transmits a third signal to the overload determination device when the vertical distance between the detected part or the ground becomes less than or equal to the third registered distance;
Equipped with
Any one of claims 2 to 4 , wherein the determination unit is configured to determine, upon receiving the third signal, that the load capacity of the garbage storage box is equal to or greater than a predetermined ratio with respect to a fully loaded state. Garbage collection vehicle described in.

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