Garbage collection vehicle

Abstract

To provide a garbage collection vehicle capable of suppressing operation related to weighing in an unnecessary timing while reducing a burden on an operator related to the weighing.SOLUTION: A garbage collection vehicle comprises a vehicle body, a PTO device, a garbage storage box capable of storing garbage in its inside, a garbage throwing part in which the garbage is thrown, a loading device for loading the garbage into the garbage storage box, a weighing device for weighing the weight of the garbage, a PTO switch for operating a PTO device, a loading preparation switch, and a control device. The PTO switch can switch between a supply state in which the PTO device supplies power to the loading device and an interruption state in which the PTO device does not supply the power to the loading device. The loading preparation switch can switch between a loading mode in which the loading device can be driven and an off-mode in which the loading device cannot be driven. The control device is configured to perform tare subtraction processing to a weighed value weighed by the weighing device when the PTO switch is in the supply state and the loading preparation switch is in the loading mode.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a refuse collection vehicle. [Background technology]

[0002] Conventionally, a refuse collection vehicle described in Patent Document 1 is known. The refuse collection vehicle includes a storage box for storing refuse, a loading device for loading the refuse into the storage box, a weighing means for weighing the put-in refuse, a PTO switching means for switching whether the PTO device outputs the engine's power to the mounted object, and a measurement value resetting means. The measurement value resetting means performs a tare when the PTO switching means is operated and the state is switched to outputting the engine's power to the mounted object.

[0003] With a garbage collection vehicle configured as described above, the tare weight process can be performed based on the state of the PTO device without the operator having to perform any operations for the tare weight process, so the tare weight is automatically calculated before the garbage is loaded, thereby reducing the burden on the operator. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5192280 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, the output of the PTO device may be switched when garbage is not being loaded, for example, when the loaded garbage is being discharged. However, in the garbage collection vehicle described in Patent Document 1, the tare subtraction process is performed even when the output of the PTO device is switched when garbage is not being loaded, so the tare subtraction may be performed at an unnecessary timing.

[0006] The above problem is not limited to tare subtraction, but may occur when performing any weighing operation based on switching the output of the PTO device, for example, when outputting the weighing result or adjusting the zero point of the weighing means based on switching the output of the PTO device.

[0007] Therefore, an object of the present invention is to provide a refuse collection vehicle that can reduce the burden on an operator regarding weighing, while preventing weighing operations from being performed at unnecessary times. [Means for solving the problem]

[0008] The garbage collection vehicle of the present invention comprises a vehicle body having a chassis and a power source for running, a PTO device for supplying power from the power source for running to an attachment mounted on the chassis, a garbage storage box mounted on the chassis and capable of storing garbage therein, a garbage input section into which garbage is input, a loading device for loading the garbage input into the garbage storage box, a weighing device for weighing the weight of the garbage stored in the garbage storage box, a PTO switch for operating the PTO device, a loading preparation switch, and a control device, and the PTO The switch is capable of switching between a supply state in which the PTO device supplies power to the loading device and a cut-off state in which the PTO device does not supply power to the loading device, and the loading preparation switch is capable of switching between a loading mode in which the loading device can be driven and an off mode in which the loading device cannot be driven, and the control device is configured to perform a tare process, which is a weighing process, based on the weighing value when the PTO switch is in the supply state and the loading preparation switch is in the loading mode.

[0009] According to this configuration, the tare process is performed when the PTO switch is in the supply state and the loading preparation switch is in the loading mode, so the tare process can be performed immediately before loading the garbage. This reduces the burden on the worker in relation to weighing, while preventing the tare process, which is a weighing operation, from being performed when it is not necessary.

[0010] The refuse collection vehicle of the present invention comprises a vehicle body having a chassis and a power source for running, a PTO device for supplying power from the power source for running to an attachment mounted on the chassis, a refuse storage box mounted on the chassis and capable of storing refuse therein, a refuse input section into which the refuse is input, a loading device for loading the refuse input into the refuse storage box, a weighing device capable of weighing the refuse stored in the refuse storage box, a PTO switch for operating the PTO device, a loading preparation switch, a measurement value output means capable of outputting the measurement result of the weighing device, and a control device, the PTO switch being The PTO device is capable of switching between a supply state in which it supplies power to the loading device and a cut-off state in which it does not supply power to the loading device, the loading preparation switch is capable of switching between a loading mode in which the loading device can be driven and an off mode in which the loading device cannot be driven, and the control device is configured to output the weighing result of the weighing device to an external device when the loading preparation switch is switched from the loading mode and the PTO switch is switched from the supply state to the off mode and the PTO switch is switched to the cut-off state.

[0011] According to this configuration, when the loading preparation switch is switched from the loading mode and the PTO switch is switched from the supply state to the off mode and the PTO switch is switched to the disconnected state, the weighing result is output, so that the weighing result is output when the loading work of the garbage is completed. Therefore, the burden on the worker regarding weighing can be reduced, and the output of the weighing result, which is an operation related to weighing, can be suppressed when it is not necessary.

[0012] The refuse collection vehicle of the present invention includes a vehicle body having a chassis and a power source for running, a PTO device for supplying power from the power source for running to an attachment mounted on the chassis, a refuse storage box mounted on the chassis and capable of storing refuse therein, a discharge device for discharging the refuse stored in the refuse storage box to the outside, a weighing device for measuring the weight of the refuse stored in the refuse storage box, a PTO switch for operating the PTO device, a discharge preparation switch, and a control device, the PTO switch being configured to switch between a supply state in which the PTO device supplies power to the discharge device and a discharge preparation switch being configured to switch between a supply state in which the PTO device supplies power to the discharge device. and a cut-off state in which the PTO device does not supply power to the discharge device, the discharge preparation switch is switchable between a discharge mode in which the discharge device can be driven and an off mode in which the discharge device cannot be driven, and the control device is configured to perform a zero point adjustment process which sets the measured value measured by the measuring device to zero when the discharge preparation switch is switched from the discharge mode and the PTO switch is switched from the supply state to the off mode and the PTO switch is switched to the cut-off state.

[0013] According to this configuration, when the discharge preparation switch is switched from the discharge mode and the PTO switch is switched from the supply state to the off mode and the PTO switch is switched to the disconnected state, the zero point adjustment process is performed, so that the zero point adjustment process can be performed when the garbage in the garbage storage box is discharged. Therefore, the burden on the operator regarding weighing can be reduced, and the zero point adjustment, which is an operation related to weighing, can be prevented from being performed when it is not necessary. Effect of the Invention

[0014] According to the present invention, a refuse collection vehicle can be obtained that can reduce the burden on an operator in relation to weighing, while preventing weighing operations from being performed at unnecessary times. [Brief description of the drawings]

[0015] [Figure 1] 1 is a diagram showing an overview of a refuse collection vehicle according to an embodiment of the present invention; [Diagram 2]FIG. 4 is a diagram showing a first switch box of the garbage collection vehicle. [Diagram 3] FIG. 4 is a diagram showing a second switch box of the same garbage collection vehicle. [Figure 4] FIG. 2 is a block diagram showing the configuration of the garbage collection vehicle. [Diagram 5] FIG. 2 is a block diagram showing the configuration of a control device of the garbage collection vehicle. [Figure 6] FIG. 4 is a flow chart relating to a tare subtraction process of the control device. [Figure 7] FIG. 4 is a flow diagram regarding output of the measurement result of the control device. [Figure 8] FIG. 4 is a flow chart relating to a zero point adjustment process of the control device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] A refuse collection vehicle 1 according to an embodiment of the present invention will be described with reference to Figures 1 to 8. For ease of explanation, the front-rear and up-down directions will be described based on the directions shown in Figure 1.

[0017] As shown in Fig. 1, the refuse collection vehicle 1 includes a chassis 12 having a cab 122 and a vehicle body 11 having a running power source (not shown), a refuse storage box 13 mounted on the vehicle body 11, a refuse input section 14, a loading device 15, a discharge device 16, a weighing device 17 (load cell 171), and a PTO device 18 (see Fig. 4). Also, as shown in Figs. 2 to 4, the refuse collection vehicle 1 includes a control device 2, a first switch box 3 provided in the cab 122, and a second switch box 4 provided outside the cab 122.

[0018] Such a garbage collection vehicle 1 is a vehicle that collects garbage and other garbage and transports it to, for example, a disposal facility. For example, the garbage collection vehicle 1 moves to the disposal facility while collecting garbage from multiple business establishments, and discharges the collected garbage at the disposal facility.

[0019] The vehicle body 11 includes a chassis 12 and a power source for traveling that mainly supplies power for traveling the refuse collection vehicle 1. The power source for traveling is, for example, an engine or an electric motor. The chassis 12 includes a chassis 121 and a driver's cab 122 connected to the chassis 121. The driver's cab 122 is a box-shaped body that is located at the front end of the vehicle body 11 and can accommodate an operator. The chassis 121 is a frame that extends rearward from the driver's cab 122, and can have mounted objects mounted on its upper portion.

[0020] The cab 122 is provided with a first switch box 3, an indicator 123 as an external device 5, and an external output device 51 as an external device 5. The indicator 123 is an operation part that can perform various operations on the weighing device 17. For example, the indicator 123 can perform operations such as a tare subtraction process, a zero point adjustment process, and turning on or off the power of the weighing device 17, which will be described later. Specifically, the indicator 123 is provided with an input part (e.g., a push button) for inputting an input for performing a tare subtraction process or a zero point adjustment process, separate from the tare subtraction process or zero point adjustment process that is performed when the control device 2, which will be described later, determines that a predetermined condition is satisfied. The indicator 123 is also configured to be capable of displaying the weighing result and the integrated weighing value. The external output device 51 is a device that outputs the weighing result, and in this embodiment, it is a printing device that can print the weighing result and output it on a paper medium. The external output device 51 (printing device) in this embodiment is configured integrally with the indicator 123.

[0021] The trash collection box 13 is a box-shaped part mounted on the vehicle frame 12 (chassis 121), and has an opening 13a that opens toward the rear.

[0022] The garbage input section 14 has an input opening 14a that opens toward the rear at the rear end of the garbage collection vehicle 1, and is configured so that an operator can input garbage through the input opening 14a. The garbage input section 14 also has a cover section 141 that is a lid that opens and closes the input opening 14a. The cover section 141 is configured to open and close the input opening 14a by sliding in the vertical direction, and is provided with, for example, a handle section (not shown) for an operator to slide the cover section 141 in the vertical direction. Such a garbage input section 14 is provided at the top of the garbage storage box 13 and is connected to the garbage storage box 13 via a rotating shaft 143 that extends in the vehicle width direction. The garbage input section 14 also can rotate around the rotating shaft 143, and this rotation opens and closes the opening 13a of the garbage storage box 13. For example, the trash input section 14 closes the opening 13a of the trash storage box 13 at the closed position P1 shown by the solid line in Fig. 1, and opens the opening 13a of the trash storage box 13 when rotated upward to the open position P2 shown by the two-dot chain line in Fig. 1, so that the trash stored in the trash storage box 13 can be discharged to the outside. Rotation of the trash input section 14 around the rotation shaft 143 is performed by an opening / closing means (not shown). The trash input section 14 is locked at the closed position P1 except when it is rotated from the closed position P1 to the open position P2.

[0023] The waste input section 14 is provided with an external display 144 as an external device 5 that outputs a measurement value (measurement result or integrated measurement value) described later. The external display 144 is a monitor capable of displaying the measurement value. The external display 144 is disposed above or below the second switch box 4, for example.

[0024] The loading device 15 is provided in the garbage input section 14. The loading device 15 includes a pushing member 151 that pushes the garbage input from the input opening 14a into the garbage storage box 13, and a compression drive means 153 and a pushing drive means 152 that drive the pushing member 151. The pushing member 151 is configured to be driven by the compression drive means 153 to move diagonally forward and upward, and is also configured to be driven by the pushing drive means 152 to rotate about an axis in the vehicle width direction. Since the loading device 15 is configured in this way, the rotation of the pushing member 151 moves the garbage input into the garbage input section 14 to the garbage storage box 13 in front and loads it, and the diagonal movement of the pushing member 151 can compress the garbage in the garbage storage box 13.

[0025] The loading device 15 is configured to be driven by an input to a drive switch 7 provided in a second switch box 4, which will be described later. The loading device 15 of this embodiment operates in a momentary manner (automatic return type). For example, when the drive switch 7 is turned ON, this triggers a sequence operation of the loading device 15, which automatically stops when a series of sequence operations ends. The loading device 15 may operate in an alternate manner (holding type) in which, when the drive switch 7 is turned ON, the operation continues until it is turned OFF.

[0026] The discharge device 16 is configured to discharge the dust contained in the dust storage box 13 to the outside. Specifically, the discharge device 16 includes a discharge plate 161 provided inside the dust storage box 13 and a cylinder 162 that moves the discharge plate 161 in the front-rear direction, and is configured so that the dust inside the dust storage box 13 is pushed rearward by the discharge plate 161 moving rearward. Therefore, the dust can be discharged to the outside by moving the discharge plate 161 rearward with the dust input part 14 in the open position P2. Note that the discharge device 16 is not limited to the above configuration, and can also be configured so that, for example, the front end of the dust storage box 13 is pushed upward and the dust storage box 13 is tilted so that the rear side is positioned lower than the front side, thereby discharging (dumping) the dust inside the dust storage box 13 from the rear.

[0027] The loading device 15 and the discharge device 16 are supplied so as to be driven by hydraulic pressure, which will be described later. That is, the loading device 15 and the discharge device 16 are provided with hydraulic components (e.g., hydraulic cylinders and hydraulic motors) that can be driven by hydraulic pressure, and are configured to perform the operation of loading garbage and the operation of discharging garbage by supplying hydraulic pressure to the hydraulic components.

[0028] The weighing device 17 is configured to be able to measure the weight of the garbage stored in the garbage storage box 13. Specifically, the weighing device 17 has a load cell 171 arranged between the chassis 121 and the garbage storage box 13, and is able to measure the total value of the weight of the mounted object mounted on the chassis 121 and the garbage stored inside the garbage storage box 13. The load cell 171 of this embodiment includes a load cell main body that outputs a voltage according to the weight, and a load cell processing unit (amplifier) ​​that outputs a measurement value signal indicating a measurement value corresponding to the voltage output by the load cell main body. In this embodiment, the load cell processing unit of one of the multiple load cells 171 outputs a total measurement value signal indicating a total measurement value obtained by adding up the measured measurement values ​​based on the measurement value signals output by all the load cell processing units.

[0029] The PTO device 18 is a device for supplying the power of the traveling power source to the mounted object. Specifically, the PTO device 18 supplies the rotational force, which is the power generated by the traveling power source, to the hydraulic pump of the mounted object via a PTO shaft (not shown) provided on the vehicle body 11, and supplies hydraulic pressure as power to the mounted object by rotating a gear inside the hydraulic pump. By operating the PTO switch 31, such a PTO device 18 can be switched between a supply state in which power is supplied to the mounted object (loading device 15 and discharge device 16) and a cut-off state in which power is not supplied to the mounted object (mounted object is disconnected from the power).

[0030] The mounted object has a hydraulic circuit including a hydraulic pump connected to the PTO device 18, and the hydraulic circuit is provided with a plurality of solenoid valves for switching the supply state of hydraulic pressure to the hydraulic components of the loading device 15 and the discharging device 16. In this embodiment, the solenoid valve is driven (for example, the solenoid of the solenoid valve is excited) to supply hydraulic pressure to the hydraulic components of the loading device 15 and the discharging device 16, and is configured such that no hydraulic pressure is supplied to the hydraulic components of the loading device 15 and the discharging device 16 when the solenoid valve is not driven (for example, the solenoid of the solenoid valve is not excited).

[0031] 2, the first switch box 3 is provided with a PTO switch 31, a preparation switch 32 in which a loading preparation switch 321 and a discharge preparation switch 322 are integrated, an open / close switch 33, a discharge switch 34, and a scraping switch 35. The first switch box 3 is also provided with an operation state indicator lamp 36 and a lock lamp 37. Note that a configuration in which the loading preparation switch 321 and the discharge preparation switch 322 are provided separately can also be adopted.

[0032] The PTO switch 31 is a switch for switching between a supply state in which the PTO device 18 supplies power to the mounted object and a cut-off state in which the PTO device 18 does not supply power to the mounted object. The PTO switch 31 is configured as, for example, a push button, and by pressing it, the PTO device 18 is switched from the supply state to the cut-off state, or from the cut-off state to the supply state. The PTO switch 31 is not limited to this configuration, and various switches such as a rocker switch and a slide switch can be used. In addition, the PTO switch 31 is switched to the supply state only when the vehicle is stopped, and is switched to the cut-off state before starting again. That is, each operation (loading and unloading) performed using the power supplied from the PTO device 18, which will be described later, is performed while the refuse collection vehicle 1 is stopped.

[0033] The preparation switch 32 is a switch that is switched to any one of the positions of "loading," "OFF," and "discharge," and is, for example, an alternate type toggle switch. The preparation switch 32 can switch between a loading mode in which the loading device 15 can be driven and an off mode in which it cannot be driven, and can also switch between a discharge mode in which the discharge device 16 can be driven and an off mode in which it cannot be driven. In other words, the preparation switch 32 is integrally configured with a loading preparation switch 321 that switches the loading device 15 to the loading mode or the off mode, and a discharge preparation switch 322 that switches the discharge device 16 to the discharge mode or the off mode.

[0034] When the preparation switch 32 is switched to the "loading" position, the loading device 15 is in loading mode. When the loading device 15 is in loading mode, the solenoid valve in the hydraulic circuit for supplying hydraulic pressure to the loading device 15 is powered on, and the solenoid valve is in a driveable state. When the preparation switch 32 is switched to the "OFF" or "discharge" position, the loading device 15 is in off mode. When the loading device 15 is in off mode, the solenoid valve in the hydraulic circuit for supplying hydraulic pressure to the loading device 15 is powered off, and the solenoid valve is in a non-driveable state.

[0035] When the loading device 15 is in the loading mode, the solenoid valve in the hydraulic circuit for supplying hydraulic pressure to the loading device 15 is turned on and the solenoid valve is in an operable state. That is, in the loading mode, the loading device 15 is able to receive hydraulic pressure by operating the solenoid valve through the operation of the drive switch 7 described below, and is therefore in an operable state.

[0036] When the preparation switch 32 is switched to the "discharge" position, the discharge device 16 is in discharge mode. When the discharge device 16 is in discharge mode, the solenoid valve in the hydraulic circuit for supplying hydraulic pressure to the discharge device 16 is powered on, and the solenoid valve is in a driveable state. When the preparation switch 32 is switched to the "OFF" or "load" position, the discharge device 16 is in off mode. When the discharge device 16 is in off mode, the solenoid valve in the hydraulic circuit for supplying hydraulic pressure to the discharge device 16 is powered off, and the solenoid valve is in a non-driveable state.

[0037] When the discharge device 16 is in the discharge mode, the solenoid valve in the hydraulic circuit for supplying hydraulic pressure to the discharge device 16 is turned on and the solenoid valve is in a driveable state. That is, in the discharge mode, the discharge device 16 is able to receive hydraulic pressure by driving the solenoid valve through the operation of the drive switch 7 described below, and is therefore in a driveable state.

[0038] The open / close switch 33 is a switch for driving the open / close means to rotate the garbage input section 14 around the rotation shaft 143. Specifically, the open / close switch 33 is a switch that is switched to any one of the positions "up", "OFF", and "down", and is, for example, a momentary toggle switch. When the open / close switch 33 is switched to the "up" position, the open / close means rotates the garbage input section 14 upward and moves it to the open position P2, and when the open / close switch 33 is switched to the "down" position, the open / close means rotates the garbage input section 14 downward and moves it to the closed position P1. Also, when the open / close switch 33 is in the "OFF" position, the open / close means does not operate, and the garbage input section 14 holds its position at that time.

[0039] The discharge switch 34 is a switch that is operated to drive the discharge plate 161. The discharge switch 34 is a switch that is switched to any one of the positions of "discharge", "OFF", and "return", and is, for example, a momentary toggle switch. The discharge switch 34 is a drive switch 7 that drives the discharge device 16.

[0040] When the discharge switch 34 is operated while the discharge device 16 is in discharge mode, the discharge plate 161 is driven to discharge the dust into the dust storage box 13. Specifically, when the discharge switch 34 is switched to the "discharge" position, the solenoid valve for supplying hydraulic pressure to the discharge device 16 is driven, hydraulic pressure is supplied to the discharge device 16, and the discharge plate 161 moves backward. When the discharge switch 34 is switched to the "return" position, the solenoid valve for supplying hydraulic pressure to the discharge device 16 is driven, and the discharge plate 161 moves forward. When the discharge switch 34 is in the "OFF" position, the solenoid valve for supplying hydraulic pressure to the discharge device 16 is not driven, and the discharge plate 161 maintains its position at that time.

[0041] The sweeping switch 35 is a switch that is operated to remove the dust remaining in the dust receiving section 14. The sweeping switch 35 is a switch that is switched to any one of the positions "AUTO", "OFF", and "MANUAL". The sweeping switch 35 is a toggle switch that is an alternate contact on the "AUTO" side and a momentary contact on the "MANUAL" side.

[0042] When the scraping switch 35 is set to "automatic" and the garbage input section 14 moves to the open position P2, the loading device 15 performs a series of operations to remove garbage remaining in the garbage input section 14, and scrapes out the garbage remaining in the garbage input section 14. Also, when the garbage input section 14 is in the open position P2, when the scraping switch 35 is set to "manual", the loading device 15 performs a series of operations to remove garbage remaining in the garbage input section 14, and scrapes out the garbage remaining in the garbage input section 14.

[0043] The operation status display lamps 36 are lamps that light up when each switch of the switch box is operable.

[0044] The lock lamp 37 is a lamp that is lit when the trash receiving portion 14 is locked in the closed position P1.

[0045] 3, the second switch box 4 is provided with a single-unit switch 41, a communication buzzer switch 42, a compression mode switch 43, a loading switch 44, a lowering switch 45, an uppering switch 46, a reverse switch 47, and a stop switch 48. In this embodiment, the second switch box 4 is provided at the rear end of the waste input section 14.

[0046] The single-loader / multiple-loader changeover switch 41 is a switch for switching between a continuous operation mode in which the loading device 15 repeats a loading process cycle for loading garbage, and a single operation mode in which the loading device 15 executes the loading process cycle only once. The single-loader / multiple-loader changeover switch 41 of this embodiment is configured as an alternate side toggle switch that is switched between the "continuous" and "single" positions.

[0047] The notification buzzer switch 42 is a switch for activating an alarm (not shown) in the event of an emergency, and is, for example, a momentary push button switch.

[0048] The compression mode changeover switch 43 is a switch for switching between a high compression mode in which the speed at which the discharge plate 161 moves forward while compressing the garbage between itself and the pushing member 151 of the loading device 15 is relatively slowed down when the loading device 15 is operating, thereby increasing the compression rate of the garbage, and a normal mode in which the speed at which the discharge plate 161 moves is relatively slowed down, thereby decreasing the compression rate of the garbage.

[0049] The loading switch 44, the lowering switch 45, the raising switch 46, and the reversing switch 47 are all drive switches 7 for operating the loading device 15. When the drive switch 7 is operated, a solenoid valve for supplying hydraulic pressure to the loading device 15 is driven, hydraulic pressure is supplied to the loading device 15, and the pushing member 151 is driven.

[0050] The loading switch 44 is a switch for starting a loading process cycle in the loading device 15, and is specifically a momentary push button switch. When the loading switch 44 is pressed, depending on the state of the multiplex / single switch 41, the loading operation executes a continuous or one loading process cycle.

[0051] The lowering switch 45 and the raising switch 46 are switches for causing the loading device 15 to execute a part of the operation of the loading process cycle, and are specifically momentary push button switches. When the lowering switch 45 and the raising switch 46 are pressed, the loading device 15 performs the raising or lowering operation only while the switch is pressed.

[0052] The reversal switch 47 is a switch for causing the loading device 15 to perform a reversal operation of the loading process cycle, and is specifically a momentary type push button switch.

[0053] The stop switch 48 is a switch that is operated to stop the operation of the loading device 15, and is specifically a momentary push button switch. When the stop switch 48 is pressed, the loading device 15 that is in operation stops operating.

[0054] As shown in FIG. 5, the control device 2 includes a measurement value acquisition unit 21, a detection unit 22, a determination unit 23, a measurement processing unit 6, and an output unit 24.

[0055] The measurement value acquisition unit 21 receives the measurement value (total measurement value) output by the weighing device 17.

[0056] The detection unit 22 detects the states of the PTO switch 31, the loading preparation switch 321, and the discharge preparation switch 322 (preparation switch 32). Specifically, the detection unit 22 detects whether the PTO switch 31 is on (the PTO device 18 is in a supply state) or off (the PTO device 18 is in a cut-off state). The detection unit 22 also detects whether the preparation switch 32 is switched to a position of "loading", "off", or "discharge". That is, the preparation switch 32 detects whether the preparation switch 32 as the loading preparation switch 321 is in a position where the loading device 15 is in a loading mode or a position where the loading device 15 is in an off mode, and whether the preparation switch 32 as the discharge preparation switch 322 is in a position where the discharge device 16 is in a discharge mode or a position where the discharge device 16 is in an off mode. The detection unit 22 of this embodiment monitors signals emitted from the PTO switch 31 and the preparation switch 32 to detect the switch states.

[0057] The determination unit 23 determines whether or not to perform a weighing process based on the state of each switch (the PTO switch 31, the loading preparation switch 321, and the unloading preparation switch 322 (preparation switch 32)) detected by the detection unit 22. Specific determinations made by the determination unit 23 will be described later.

[0058] The measurement processing unit 6 processes the total weight value acquired by the measurement value acquisition unit 21. Specifically, the measurement processing unit 6 includes a tare processing unit 61, a measurement result processing unit 62, a zero point adjustment processing unit 63, an integrated value processing unit 64, and a memory unit 65.

[0059] The tare subtraction processing unit 61 performs tare subtraction processing based on the judgment of the judgment unit 23 and the input to the indicator 123. Specifically, when there is an input to perform tare subtraction processing, the tare subtraction processing unit 61 acquires the total weight value at that time and stores the total weight value as the tare weight value. This point differs from the zero point adjustment processing (processing in which the total weight value is simply set to 0) described later. That is, the tare subtraction processing unit 61 of this embodiment stores the weight of the mounted object itself and the weight of the garbage already loaded as the tare weight. Therefore, the total weight value at the time of tare subtraction processing becomes the standard, and it becomes possible to output the weight of the additional weight from there. That is, the weighing result at the time of tare subtraction processing becomes zero (0 kg). In other words, the tare subtraction processing is a process of resetting the weighing result display on the external display 144 and the indicator 123 to zero (0 kg).

[0060] The weighing result processing unit 62 outputs the weighing result obtained by subtracting the weight of the container from the total weighing value acquired by the weighing value acquisition unit 21. Specifically, the weighing result processing unit 62 acquires the total weighing value from the weighing value acquisition unit 21, acquires the weighing value of the container stored by the tare subtraction processing unit 61, and outputs the value obtained by subtracting the weighing value of the container from the total weighing value as the weighing result. That is, the weighing result processing unit 62 subtracts the weight of the mounted object itself as the container and the weight of the garbage already loaded from the total weighing value, and outputs the weight of the garbage loaded after the tare subtraction processing as the weighing result. The weighing result processing unit 62 of this embodiment continuously performs processing and outputs the weighing result at least when the PTO device 18 is in the supply state and the loading device 15 is in the loading mode.

[0061] The zero point adjustment processing unit 63 performs zero point adjustment processing based on the judgment of the judgment unit 23 and the input to the indicator 123. Specifically, when there is an input to perform zero point adjustment processing, the zero point adjustment processing unit 63 stores the total weight value acquired by the measurement value acquisition unit 21 as the measurement value when no garbage is loaded (the measurement value when the measurement value of garbage is zero). In other words, the zero point adjustment processing unit 63 stores the total weight value when performing zero point adjustment processing as the measurement value of the mounting object itself. Therefore, the integrated value, which is the total weight of the loaded garbage at the time of zero point adjustment processing, becomes zero (0 kg), and the display of the measurement result on the external display 144 and the indicator 123 is reset to zero (0 kg).

[0062] The integrated value processing unit 64 outputs an integrated measurement value, which is the total weight of the garbage loaded at that time, based on the total measurement value acquired by the measurement value acquisition unit 21. Specifically, the integrated value processing unit 64 acquires the total measurement value from the measurement value acquisition unit 21, acquires the measurement value when garbage is not loaded stored by the zero point adjustment processing unit 63, and outputs the value obtained by subtracting the measurement value when garbage is not loaded from the total measurement value as the integrated measurement value. That is, the integrated value processing unit 64 outputs the integrated measurement value by subtracting the measurement value measured as the weight of the equipment itself from the total measurement value acquired by the measurement value acquisition unit 21. The measurement result processing unit 62 of this embodiment continuously performs processing at least when the PTO device 18 is in a supply state and the loading device 15 is in a loading mode, and outputs the measurement result at that time.

[0063] The storage unit 65 stores the weighing results and the integrated weighing values ​​as the processing results of the weighing result processing unit 62 and the integrated value processing unit 64. Specifically, the storage unit 65 stores the change in the integrated weighing value at each predetermined time and the weight of the garbage loaded in one loading (from the start of loading to completion). The storage unit 65 also outputs the stored weighing results or integrated weighing values ​​as necessary (for example, when there is an instruction to output the change in the integrated weighing value or the amount of garbage loaded).

[0064] The output unit 24 outputs the processing result of the measurement processing unit 6 to the external device 5. Specifically, the output unit 24 outputs and displays the measurement result or the integrated measurement value as the processing result to the external display 144 and the indicator 123. The output unit 24 also controls the external output device 51 to output the measurement result or the integrated measurement value as the processing result to the outside. In this embodiment, the output unit 24 controls a printing device as the external output device 51 to print and output the measurement result on a paper medium.

[0065] Next, the operation of the control device 2 will be described with reference to FIGS.

[0066] 6, the control device 2 judges whether loading is about to be performed or not, and performs a tare subtraction process when it is judged that loading is about to be performed. Specifically, the judgment unit 23 executes a loading PTO judgment step S11, a loading mode judgment step S12, and a tare subtraction step S13.

[0067] The loading PTO determination step S11 is a step for determining whether the PTO switch 31 is in a supply state. Specifically, in the loading PTO determination step S11, the determination unit 23 determines that the PTO switch 31 is on (the PTO device 18 is in a supply state) based on the detection of the detection unit 22. In the loading PTO determination step S11, if it is determined that the PTO switch 31 is in a supply state, the process proceeds to the loading mode determination step S12 (YES in the loading PTO determination step S11), and if it is determined that the PTO switch 31 is in a shutoff state (not in a supply state), the process proceeds again to the loading PTO determination step S11 (NO in the loading PTO determination step S11).

[0068] In the loading mode determination step S12, it is determined whether the preparation switch 32 (loading preparation switch 321) is in the loading mode. Specifically, in the loading mode determination step S12, the determination unit 23 determines whether the preparation switch 32 (loading preparation switch 321) is in the "loading" position based on the detection of the detection unit 22. In the loading mode determination step S12, if it is determined that the preparation switch 32 (loading preparation switch 321) is in the loading mode (in the "loading" position), the process proceeds to the tare subtraction step S13 (YES in the loading mode determination step S12), and if it is determined that the preparation switch 32 (loading preparation switch 321) is not in the loading mode (in the "OFF" or "discharge" position), the process proceeds to the loading PTO determination step S11 (NO in the loading mode determination step S12).

[0069] In the tare step S13, the tare processing unit 61 performs the tare processing. That is, the determination unit 23 determines whether or not garbage is about to be loaded based on the state of the PTO switch 31 and the preparation switch 32 (loading preparation switch 321), and when it determines that garbage is to be thrown in, it commands the tare processing unit 61 to perform the tare processing, and the tare processing unit 61 performs the tare processing based on the command. When the loading mode determination step S12 is YES, the determination unit 23 causes the tare processing to be performed before garbage is thrown in. Specifically, when the loading mode determination step S12 is YES, the determination unit 23 causes the tare processing to be performed immediately.

[0070] When the determination unit 23 executes the tare subtraction step S13, the determination unit 23 does not execute the tare subtraction step S13 again until the loading mode is switched to the off mode.

[0071] 7, the control device 2 performs a process of outputting the weighing result to the external device 5. Specifically, the control device 2 executes an output PTO supply determination step S21, an output loading mode determination step S22, an output off mode determination step S23, an output PTO cutoff determination step S24, a weighing value acquisition step S25, a weighing result determination step S26, and a weighing result output step S27.

[0072] The output PTO supply determination step S21 is a step in which the determination unit 23 determines whether the PTO switch 31 is in the supply state. Specifically, in the output PTO supply determination step S21, the determination unit 23 determines that the PTO switch 31 is on (the PTO device 18 is in the supply state) based on the detection of the detection unit 22. In the output PTO supply determination step S21, if it is determined that the PTO switch 31 is in the supply state, the process proceeds to the output loading mode determination step S22 (YES in the output PTO supply determination step S21), and if it is determined that the PTO switch 31 is in the shut-off state (not in the supply state), the process proceeds again to the output PTO supply determination step S21 (NO in the output PTO supply determination step S21).

[0073] The output loading mode determination step S22 is a step in which the determination unit 23 determines whether the preparation switch 32 (loading preparation switch 321) is in the loading mode. Specifically, in the output loading mode determination step S22, the determination unit 23 determines whether the preparation switch 32 (loading preparation switch 321) is in the "loading" position based on the detection of the detection unit 22. In the output loading mode determination step S22, if it is determined that the preparation switch 32 (loading preparation switch 321) is in the loading mode (in the "loading" position), the process proceeds to the output off mode determination step S23 (YES in the output loading mode determination step S22), and if it is determined that the preparation switch 32 (loading preparation switch 321) is not in the loading mode (in the "OFF" or "discharge" position), the process proceeds to the output PTO supply determination step S21 (NO in the output loading mode determination step S22).

[0074] The output off mode determination step S23 is a step in which the determination unit 23 determines whether the loading preparation switch 321 is in the off mode. Specifically, in the output off mode determination step S23, the determination unit 23 determines whether the preparation switch 32 (loading preparation switch 321) is in the "OFF" or "discharge" position based on the detection of the detection unit 22. In the output off mode determination step S23, if it is determined that the preparation switch 32 (loading preparation switch 321) is in the off mode (in the "OFF" or "discharge" position) (YES in the output off mode determination step S23), the process proceeds to the output PTO disconnection determination step S24, and if it is determined that the preparation switch 32 (loading preparation switch 321) is in the loading mode (in the "loading" position) (NO in the output off mode determination step S23), the process proceeds again to the output off mode determination step S23.

[0075] The output PTO shutoff determination step S24 is a step in which the determination unit 23 determines whether the PTO switch 31 is in the shutoff state. In the output PTO shutoff determination step S24, the determination unit 23 determines that the PTO switch 31 is off (the PTO device 18 is in the shutoff state) based on the detection of the detection unit 22. In the output PTO shutoff determination step S24, if it is determined that the PTO switch 31 is in the shutoff state, the process proceeds to the measurement value acquisition step S25 (YES in the output PTO shutoff determination step S24), and if it is determined that the PTO switch 31 is in the supply state (not in the shutoff state), the process proceeds again to the output off mode determination step S23 (NO in the output PTO shutoff determination step S24).

[0076] In the measurement value acquisition step S25, the measurement value acquisition unit 21 acquires a total measurement value. The total measurement value acquired by the measurement value acquisition unit 21 is output to the measurement processing unit 6 (measurement result processing unit 62). When the measurement value acquisition step S25 is completed, the process proceeds to the measurement result determination step S26.

[0077] The weighing result confirmation step S26 is a step in which the weighing result processing unit 62 calculates the weighing result by subtracting the container weight value from the total weighing value, and outputs the calculated weighing result as a final weighing value. That is, the weighing result confirmation step S26 is a step in which a final weighing value, which is the weighing value of the garbage loaded in one loading, is calculated based on the total weighing value and the container weight value. The final weighing value does not change even if the weighing value measured thereafter changes due to vibration or the like. When the weighing result confirmation step S26 is completed, the weighing result output step S27 is started.

[0078] The weighing result output step S27 is a step in which the output unit 24 outputs the final weight value to the external device 5. Specifically, in the weighing result output step S27, the output unit 24 outputs the final weight value to the indicator 123 and the external display 144 to display the final weight value. Note that the indicator 123 and the external display 144 display the weighing result during loading, but when the final weight value is output, the final weight value can be displayed in a manner different from the weighing result during loading. For example, the weighing result during loading can be displayed in a flashing manner, and the final weight value can be displayed in a lit manner. In addition, the weighing result during loading changes each time due to a change in the total weight of the loaded garbage or vibration, but the display of the final weight value can be left unchanged even if the weighing result changes. In addition, in the weighing result output step S27, the final weight value is output to the outside from the external output device 51. In this embodiment, a printing device serving as the external output device 51 is controlled to print and output the finalized weight value on paper.

[0079] 8, the control device 2 judges whether or not it is immediately after discharge, and when it judges that it is immediately after discharge, performs zero point adjustment processing. Specifically, the control device 2 executes a discharge PTO supply determination step S31, a discharge mode determination step S32, a discharge off mode determination step S33, a discharge PTO cutoff determination step S34, and a zero point adjustment processing step S35.

[0080] The discharge PTO supply determination step S31 is a step in which the determination unit 23 determines whether the PTO switch 31 is in a supply state. Specifically, in the discharge PTO supply determination step S31, the determination unit 23 determines that the PTO switch 31 is in a supply state (the PTO device 18 is in a supply state) based on the detection of the detection unit 22. In the discharge PTO supply determination step S31, if it is determined that the PTO switch 31 is in a supply state, the process proceeds to the discharge mode determination step S32 (YES in the discharge PTO supply determination step S31), and if it is determined that the PTO switch 31 is in a shutoff state (not in a supply state), the process proceeds again to the discharge PTO supply determination step S31 (NO in the discharge PTO supply determination step S31).

[0081] The discharge mode determination step S32 is a step in which the determination unit 23 determines whether the preparation switch 32 (discharge preparation switch 322) is in the discharge mode. Specifically, in the discharge mode determination step S32, the determination unit 23 determines whether the preparation switch 32 (discharge preparation switch 322) is in the "discharge" position based on the detection of the detection unit 22. In the discharge mode determination step S32, if the determination unit 23 determines that the preparation switch 32 (discharge preparation switch 322) is in the discharge mode (in the "discharge" position), the process proceeds to the discharge off mode determination step S33 (YES in the discharge mode determination step S32), and if the determination unit 23 determines that the preparation switch 32 (discharge preparation switch 322) is not in the discharge mode (in the "OFF" or "loading" position), the process proceeds to the discharge PTO supply determination step S31 (NO in the discharge mode determination step S32).

[0082] The discharge off mode determination step S33 is a step in which the determination unit 23 determines whether the discharge preparation switch 322 is in the off mode. Specifically, in the discharge off mode determination step S33, the determination unit 23 determines whether the preparation switch 32 (discharge preparation switch 322) is in the "OFF" or "loading" position based on the detection of the detection unit 22. In the discharge off mode determination step S33, if it is determined that the preparation switch 32 (discharge preparation switch 322) is in the off mode (in the "OFF" or "loading" position) (YES in the discharge off mode determination step S33), the process proceeds to the discharge PTO disconnection determination step S34, and if it is determined that the preparation switch 32 (discharge preparation switch 322) is in the discharge mode (in the "discharge" position) (NO in the discharge off mode determination step S33), the process proceeds again to the discharge off mode determination step S33.

[0083] The discharge PTO cut-off determination step S34 is a step in which the determination unit 23 determines whether the PTO switch 31 is in a cut-off state. In the discharge PTO cut-off determination step S34, the determination unit 23 determines that the PTO switch 31 is off (the PTO device 18 is in a cut-off state) based on detection by the detection unit 22. In the discharge PTO cut-off determination step S34, if it is determined that the PTO switch 31 is in a cut-off state, the process proceeds to a zero point adjustment processing step S35 (YES in the discharge PTO cut-off determination step S34), and if it is determined that the PTO switch 31 is in a supply state (not in a cut-off state), the process proceeds again to the discharge off mode determination step S33 (NO in the discharge PTO cut-off determination step S34).

[0084] In the zero point adjustment process step S35, the zero point adjustment processing unit 63 performs the zero point adjustment process. That is, the determination unit 23 determines whether or not the discharge of garbage is completed based on the state of the PTO switch 31 and the preparation switch 32 (discharge preparation switch 322), and when it is determined that the discharge of garbage is completed, it commands the zero point adjustment processing unit 63 to perform the zero point adjustment process. After the discharge is completed and before loading is performed, preferably before starting traveling, the determination unit 23 causes the zero point adjustment processing unit 63 to perform the zero point adjustment process. When the discharge PTO disconnection determination process S34 is YES, the determination unit 23 of this embodiment immediately performs the zero point adjustment process.

[0085] According to the garbage collection vehicle 1 configured as above, the tare process is performed when the PTO switch 31 is in the supply state and the loading preparation switch 321 is in the loading mode, so that the tare process can be performed immediately before loading garbage. This reduces the burden on the worker in relation to weighing, while preventing the tare process, which is a weighing operation, from being performed when it is not necessary. Note that if the tare process is performed when it is not necessary, some of the weight of the loaded garbage that should have been weighed may not be reflected in the weighing result, which is not preferable.

[0086] Furthermore, since the weighing result is output when the loading preparation switch 321 is switched from the loading mode and the PTO switch 31 is switched from the supply state to the off mode and the PTO switch 31 is switched from the load mode to the shutoff state, the weighing result is output when the loading of the garbage is completed. This reduces the burden on the worker in relation to weighing, while preventing the output of the weighing result, which is an operation related to weighing, from being performed when it is not necessary. Note that if the weighing result is output when it is not necessary, there is a risk that an incorrect weighing result (for example, a weighing result during loading) will be output, which is not preferable.

[0087] Furthermore, as described above, after the vehicle body 11 has stopped (for example, after the handbrake has been applied), the PTO switch 31 is switched to the supply state, the tare process is performed, and then the garbage is loaded. Then, when the PTO switch 31 is switched to the shutoff state, the final weight value is calculated and output before the vehicle departs, thereby preventing the weight value of the loaded garbage from differing from the final weight value due to vibration of the vehicle body 11, etc.

[0088] Furthermore, since the zero point adjustment process is performed when the discharge preparation switch 322 is in the discharge mode and the PTO switch 31 is in the supply state, and the discharge switch 34 is in the off mode and the PTO switch 31 is in the cut-off state, the zero point adjustment process can be performed when the garbage in the garbage storage box 13 is discharged. This reduces the burden on the operator in relation to weighing, while preventing zero point adjustment, which is a weighing operation, from being performed when it is not necessary. Note that if the zero point adjustment process is performed when it is not necessary, there is a risk that the integrated weighing value will be treated as zero even though garbage is stored in the garbage storage box 13, which is not preferable as it may cause overloading, etc.

[0089] As described above, in this embodiment, whether or not to perform each process is determined based on the state of two or more switches related to loading or unloading, so that it is possible to prevent unnecessary processing from being performed. In particular, since the determination is based on the state of the PTO switch 31 and the preparation switch 32, rather than the drive switch 7 that performs the actual loading or unloading operation, it is possible to prevent tare subtraction processing, output of weighing results, and zero point adjustment processing from being performed during loading or unloading.

[0090] Furthermore, since each of the above processes is performed based on the state of the switch in the driver's cab 122 (the switch of the first switch box 3), even if the drive switch 7 is operated by mistake during loading operations, for example, processes such as tare subtraction can be prevented from being performed.

[0091] Although an embodiment of the present invention has been described above by way of example, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0092] For example, the indicator 123 is provided in the cab 122 and functions as an operating part for operating the weighing device 17 while displaying the weighing results or the integrated weighing value. However, the present invention is not limited to such a configuration, and the indicator 123 may be configured to function only as an operating part for operating the weighing device 17. In such a case, a display device for displaying the weighing results or the integrated weighing value may be provided in the cab 122 separately from the indicator 123.

[0093] In addition, the printer as the external output device 51 has been described as being configured integrally with the indicator 123, but the present invention is not limited to this configuration and may be configured as a separate unit from the indicator 123. In such a configuration, the printer may be provided, for example, inside the driver's cab 122 or outside the driver's cab 122. The printer may also be configured as a portable terminal capable of wireless communication with the output unit 24.

[0094] Furthermore, although the external output device 51 is described as a printing device provided in the refuse collection vehicle 1, the configuration is not limited to this, and various configurations capable of outputting the weighing results externally can be adopted. For example, the external output device 51 can be configured as an external storage device (e.g., flash memory) and the weighing results can be stored in the storage device, or the external output device 51 can be configured as an external terminal or server and the weighing results can be stored in the terminal or server. In other words, the external output device 51 is an external device that outputs the weighing results so that they can be checked later (not displayed temporarily).

[0095] In addition, the weighing device 17 is described as having a load cell 171, but the present invention is not limited to such a configuration, and various configurations can be adopted that can measure the weight of the garbage stored in the garbage storage box 13. For example, various weighing means such as a spring type or an electric type can be adopted.

[0096] Furthermore, the weighing device 17 has been described as adding up the weight values ​​measured by the multiple load cells 171 to calculate the total weight value, but is not limited to this configuration. For example, each load cell 171 may output a weight value to the control device 2 (weight value acquisition unit 21), and the control device 2 may calculate the total weight value.

[0097] For example, the PTO switch 31 and the preparation switch 32 may be arranged outside the operator's cab 122.

[0098] Furthermore, the tare subtraction processing unit 61 has been described as being configured to acquire a combined weight value and calculate a tare weight value, but is not limited to such a configuration and can also be configured, for example, to calculate a tare weight value based on an accumulated weight value.

[0099] 6, for example, a process for checking whether the cover 141 is open can be added, and the tare process can be performed when the PTO switch 31 is in the supply state, the loading preparation switch 321 is in the loading mode, and the cover 141 is open. With such a configuration, the tare process can be performed immediately before loading while reliably preventing the tare process from being performed when it is not necessary.

[0100] 8, for example, a process may be added to check whether the discharge preparation switch 322 is in the off mode and to determine whether the garbage input unit 14 is in the closed position P1, so that the zero point adjustment process is performed when the discharge preparation switch 322 is in the off mode, the PTO switch 31 is switched to the disconnected state, and the garbage input unit 14 is in the closed position P1. With this configuration, it is possible to reliably prevent the zero point adjustment process from being performed during garbage discharge, while still allowing the zero point adjustment process to be performed immediately after discharge. [Explanation of symbols]

[0101] 1...Refuse collection vehicle, 11...Vehicle body, 12...Vehicle base, 121...Chassis, 122...Driver's cab, 123...Indicator, 13...Refuse storage box, 13a...Opening, 14...Refuse input section, 14a...Input opening, 141...Cover section, 143...Pivot shaft, 144...External display, 15...Loading device, 151...Pushing member, 152...Pushing drive means, 153...Compression drive means, 16...Discharge device, 161...Discharge plate, 162...Cylinder, 17...Weighting device, 171...Load cell, 18...PTO device, 2...Control device, 21...Measurement value acquisition section, 22...Detection section, 23...Judgment section, 24...Output section, 3...First switch box, 31...PTO switch, 32...Preparation switch, 321...loading preparation switch, 322...discharge preparation switch, 33...opening / closing switch, 34...discharge switch, 35...scraping switch, 36...operation status indicator lamp, 37...lock lamp, 4...second switch box, 41...single-unit changeover switch, 42...contact buzzer switch, 43...compression mode changeover switch, 44...loading switch, 45...downward switch, 46...upward switch, 47...reverse switch, 48...stop switch, 5...external device, 51...external output device, 6...measurement processing section, 61...tare subtraction processing section, 62...measurement result processing section, 63...zero point adjustment processing section, 64...integrated value processing section, 65...storage section, 7...drive switch

Claims

1. The vehicle comprises a vehicle body having a chassis and a power source for running, a PTO device for supplying power from the power source for running to an attachment mounted on the chassis, a garbage storage box mounted on the chassis and capable of storing garbage therein, a garbage input section into which garbage is input, a loading device for loading the garbage input into the garbage storage box, a weighing device for weighing the weight of the garbage stored in the garbage storage box, a PTO switch for operating the PTO device, a loading preparation switch, and a control device, the PTO switch is capable of switching between a supply state in which the PTO device supplies power to the loading device and a cut-off state in which the PTO device does not supply power to the loading device, the loading preparation switch is capable of switching between a loading mode in which the loading device is operable and an off mode in which the loading device is inoperable, The control device is configured to perform a tare process, which is a weighing process, based on the weighing value measured by the weighing device when the PTO switch is in the supply state and the loading preparation switch is in the loading mode, in a garbage collection vehicle.

2. The vehicle comprises a vehicle body having a chassis and a power source for running, a PTO device for supplying power from the power source for running to an attachment mounted on the chassis, a garbage storage box mounted on the chassis and capable of storing garbage therein, a garbage input section into which garbage is input, a loading device for loading the garbage input into the garbage storage box, a weighing device for weighing the weight of the garbage stored in the garbage storage box, a PTO switch for operating the PTO device, a loading preparation switch, and a control device, the PTO switch is capable of switching between a supply state in which the PTO device supplies power to the loading device and a cut-off state in which the PTO device does not supply power to the loading device, the loading preparation switch is capable of switching between a loading mode in which the loading device is operable and an off mode in which the loading device is inoperable, The control device is configured to output the weighing result of the weighing device to an external device when the loading preparation switch is switched from the loading mode and the PTO switch is switched from the supply state to the off mode and the PTO switch is switched to the cut-off state, a garbage collection vehicle.

3. The vehicle comprises a vehicle body having a chassis and a power source for running, a PTO device for supplying power from the power source for running to an attachment mounted on the chassis, a trash storage box mounted on the chassis and capable of storing trash therein, a discharge device for discharging the trash stored in the trash storage box to the outside, a weighing device for measuring the weight of the trash stored in the trash storage box, a PTO switch for operating the PTO device, a discharge preparation switch, and a control device, The PTO switch is capable of switching between a supply state in which the PTO device supplies power to the exhaust device and a cut-off state in which the PTO device does not supply power to the exhaust device, the discharge preparation switch is capable of switching between a discharge mode in which the discharge device is operable and an off mode in which the discharge device is inoperable, The control device is configured to perform a zero point adjustment process, which is a process of setting the weighing value measured by the weighing device to zero when the discharge preparation switch is switched from the discharge mode and the PTO switch is switched from the supply state to the off mode and the PTO switch is switched to the cut-off state, in a garbage collection vehicle.

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