JP2010095349A - Refuse-collecting vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refuse-collecting vehicle capable of improving working efficiency by facilitating an operation when refuse loading work is completed. <P>SOLUTION: While a pressing plate 8 is actuated by one cycle, when completion of pressing of the pressing plate 8 is detected by a first approaching switch 14, and when it is detected that an insertion port 3a is closed by a fifth approaching switch 49 and a sixth switch 50, one cycle operation is stopped, and a weight of refuse housed in a refuse housing box 2 is measured by a front load cell 33 and a rear load cell 34. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a dust collection vehicle that compresses and stores dust and measures the stored dust.

  The garbage collection vehicle includes a dust input box at the rear of the dust storage box, and a pushing plate for storing the input dust in the dust storage box is provided in the dust input box (for example, Patent Documents). 1). The indentation plate is operated in a single cycle, in which a certain stroke (reversal, primary compression, secondary compression, indentation) is a one-cycle process, and this one-cycle process is operated only once. One of the operation modes of the continuous cycle operation to be performed is selected and operated. Thereby, the dust thrown into the dust throwing box is compressed in the primary compression and secondary compression strokes of the pushing plate, and then accommodated in the dust containing box by the pushing stroke of the pushing plate.

  Furthermore, the garbage collection vehicle includes a weighing device (load cell) for weighing the weight of the dust accommodated in the dust storage box at each collection place between the vehicle body and the dust storage box (for example, Patent Documents). 2). As a result, after storing dust in the dust storage box at each collection place, if a weighing operation (operation of the measurement end switch) is performed, the weight of the dust stored in the dust storage box by the weighing device is measured, A collection fee can be collected according to the measured weight.

JP 2005-187098 A JP 2006-127037 A

By the way, when performing the dust storage operation, the stopping method of each operation differs depending on the operation mode between the one-cycle operation and the continuous cycle operation. In the case of the one-cycle operation, since it is automatically stopped after the pushing process is finished, it is not necessary to perform the stop operation. On the other hand, in the case of continuous cycle operation, since it is stopped by operating the stop switch, it is necessary to perform a stop operation.
However, in the case of the garbage collection vehicle as described above, in addition to the presence or absence of a stop operation due to the difference in each operation mode, after the operation of each operation mode that is in a stable state stops, the above weighing operation is performed. Since it is necessary to do this, there is a problem that the operation when finishing the dust storage operation becomes complicated and the work efficiency is lowered.
In view of the conventional problems as described above, it is an object of the present invention to provide a garbage truck that can facilitate the operation at the end of the dust storage operation and improve the work efficiency.

In order to achieve the above object, a garbage collection vehicle according to the present invention is provided with a dust container, a dust container box connected to the dust container box, and having a dust inlet, and a reversal in the dust container box.・ By a one-cycle operation that operates as a one-cycle process of primary compression, secondary compression, and pushing, a dust plate put in the dust container box is accommodated in the dust container box, and is accommodated in the dust container box. A weighing device for weighing the dust, a pushing end detecting means for detecting that the pushing plate has moved to a pushing end position for ending the pushing, and the pushing completion detecting means during the one-cycle operation, A control device that stops the one-cycle operation when the pushing end position is detected and causes the weighing device to weigh the dust is provided.
According to the garbage collection vehicle having such a configuration, when the pushing end detection means detects the pushing end position during the one-cycle operation, the one-cycle operation is stopped and the weight of the dust is measured by the weighing device. For this reason, since the weight of the dust can be automatically weighed when the operation of storing the dust by the one-cycle operation is completed, the operation at the end of the storage operation by the one-cycle operation becomes easy, and the work efficiency is improved. Can be improved.

The dust collection vehicle of the present invention includes a dust container, a dust container box connected to the dust container box, and having a dust inlet, and a rotation provided rotatably in the dust container box. A plate and a one-cycle operation that is provided so as to be able to swing forward and backward in the dust box, and that operates as a one-cycle process by rotating the rotary plate, moving backward by the backward swing, and pushing by the forward swing, A pushing plate for accommodating the dust thrown into the dust throwing box into the dust containing box, a weighing device for weighing the dust contained in the dust containing box, and a pushing for the pushing plate to finish the pushing. A push-in end detecting means for detecting movement to the end position, and when the push-in end detecting means detects the push-in end position during the one-cycle operation, the one-cycle operation is stopped and It is characterized in that and a control device for weighing the weight of the dust to the metering device.
According to the garbage collection vehicle having such a configuration, when the pushing end detection means detects the pushing end position during the one-cycle operation, the one-cycle operation is stopped and the weight of the dust is measured by the weighing device. For this reason, since the weight of the dust can be automatically weighed when the operation of storing the dust by the one-cycle operation is completed, the operation at the end of the storage operation by the one-cycle operation becomes easy, and the work efficiency is improved. Can be improved.

The refuse collection vehicle further includes a cover member that is provided in the dust box and that opens and closes the inlet, and a closing detection unit that detects that the inlet is closed by the cover member. The control device detects, when the push end detection means detects the push end position during the one-cycle operation, and when the close detection means detects the closing of the charging port, It is preferable to weigh.
In this case, during the one-cycle operation, when the push-in end detecting means detects the push-in end position, and when the close-up detecting means detects the closing of the insertion port by the cover member, the one-cycle operation is stopped and the weighing device Is weighed automatically. For this reason, since the weight of the dust can be automatically weighed in conjunction with the closing operation of the charging port performed when the operation of storing the dust by the one-cycle operation is completed, the storage operation by the one-cycle operation is completed. Operation at the time becomes easy and work efficiency can be improved.

The dust collection vehicle of the present invention includes a dust container, a dust container box connected to the dust container box and having a dust inlet, and a reversing / primary compression / secondary operation in the dust container box. A pushing plate for accommodating the dust put in the dust throwing box in the dust containing box by a continuous cycle operation in which the operation of the next compression / pushing as one cycle process is continued, and a dust housed in the dust containing box. A weighing device that measures the weight of the pusher, an indentation end detecting means for detecting that the pusher plate has moved to the indentation end position to end the indentation, and an operation command for stopping the continuous cycle operation at the indentation end position. When a stop operation command is output by the stop operation means during the continuous cycle operation, the continuous operation is detected when the push end detection means detects the push end position. Stops the cycle operation, is characterized by comprising a control device for weighing the weight of dust in the metering device.
According to the garbage truck having such a configuration, when a stop operation command is output by the stop operation means during the continuous cycle operation, the continuous cycle operation is stopped when the push end detection means detects the push end position. At the same time, the weight of the dust is weighed by the weighing device. This makes it possible to automatically weigh the dust when the work for housing the dust is completed by the continuous cycle operation. Can be improved.

The dust collection vehicle of the present invention includes a dust container, a dust container box connected to the dust container box and having a dust inlet, and a reversing / primary compression / secondary operation in the dust container box. A pushing plate for accommodating the dust put in the dust throwing box in the dust containing box by a continuous cycle operation in which the operation of the next compression / pushing as one cycle process is continued, and a dust housed in the dust containing box. A weighing device that measures the weight of the pusher, an indentation end detecting means for detecting that the pusher plate has moved to the indentation end position to end the indentation, and an operation command for stopping the continuous cycle operation at the indentation end position. When a stop operation command is output by the stop operation means during the continuous cycle operation, the continuous operation is detected when the push end detection means detects the push end position. Stops the cycle operation, is characterized by comprising a control device for weighing the weight of dust in the metering device.
According to the garbage truck having such a configuration, when a stop operation command is output by the stop operation means during the continuous cycle operation, the continuous cycle operation is stopped when the push end detection means detects the push end position. At the same time, the weight of the dust is weighed by the weighing device. This makes it possible to automatically weigh the dust when the work for housing the dust is completed by the continuous cycle operation. Can be improved.

The refuse collection vehicle further includes a cover member that is provided in the dust box and that opens and closes the inlet, and a closing detection unit that detects that the inlet is closed by the cover member. In the control device, when a stop operation command is output by the stop operation means during the continuous cycle operation, the push end detection means detects the push end position, and the closing detection means When detecting the closing of the mouth, it is preferable that the weighing device measures the weight of the dust.
In this case, when a stop operation command is output by the stop operation means during the continuous cycle operation, the push end detection means detects the push end position, and the close detection means detects the closing of the insertion port by the cover member. The continuous cycle operation is stopped and the weight of the dust is weighed by the weighing device. For this reason, it is possible to automatically weigh the dust in conjunction with the closing operation of the input port that is performed when the operation of storing the dust by the continuous cycle operation is completed. Operation at the time becomes easy and work efficiency can be improved.

  According to the refuse collection vehicle of the present invention, when the pushing end detection means detects the pushing end position during one cycle operation, the one cycle operation is stopped and the weight of the dust is weighed by the weighing device. For this reason, since the weight of a dust can be automatically measured when the operation | work which accommodates a dust by 1 cycle operation | movement is complete | finished, operation at the time of completion | finish of an accommodation operation becomes easy and can improve work efficiency. it can.

  FIG. 1 is a side sectional view showing a garbage truck according to a first embodiment of the present invention. In the figure, the garbage collection vehicle 1 includes a dust storage box 2 mounted on a vehicle body 1a, and a dust input box 3 connected to the rear part thereof. At the rear part of the dust input box 3, an input port 3a into which dust is input is formed. An opening 3 d for accommodating the dust thrown into the dust throwing box 3 in the dust throwing box 2 is provided at the lower front part of the dust throwing box 3.

  The left and right side walls 3c of the dust box 3 are provided with guide rails 4 extending obliquely up and down, and a pair of left and right rollers 6 attached to the slider 5 move obliquely up and down within the guide rails 4. can do. The slider 5 is formed by connecting the left and right members having a side shape as shown in the drawing by a plate or the like (not shown) extending in the vehicle width direction. Further, a pushing plate 8 is rotatably attached to the lower end portion of the slider 5 via a pin 7. The pushing plate 8 is also integrally formed by connecting the left and right side members shown in the figure with a plate or the like (not shown) extending in the vehicle width direction.

  On the other hand, the cylinder side end of the push cylinder 9 (compression driving means) is attached to the left and right side walls 3 c by pins 10, and the piston side end is connected to the upper end of the slider 5 by pins 11. On the other hand, the cylinder side end of the press cylinder 12 (pushing drive means) is connected to the pressing plate 8 by a pin 13, and the piston side end is connected to the upper end of the slider 5 by the pin 11. Along with the pushing plate 8, the slider 5 rises obliquely by the extension operation of the push cylinder 9, and descends obliquely by the contraction operation. As a result, the slider 5 can reciprocate corresponding to primary compression and push-in described later. Further, the pushing plate 8 is rotated clockwise around the pin 7 by the extension operation of the press cylinder 12, and is rotated counterclockwise by the contraction operation. Thereby, the pushing plate 8 can be reciprocally rotated corresponding to reversal and secondary compression described later.

  2A is an operation explanatory view in which only the pushing plate 8, the push cylinder 9 and the press cylinder 12 are extracted from FIG. 1 (however, the position of the push cylinder 9 is slightly shifted for easy understanding of the drawing). ). The pushing plate 8 performs a “reverse” stroke by the shrinking operation of the press cylinder 12 with the pushing end position P where the tip 8a of the pushing plate 8 shown in FIG. It will be in the state shown. Next, the push plate 8 performs a “primary compression” process by the contraction operation of the push cylinder 9 and is in a state shown in FIG. Subsequently, the pushing plate 8 performs a “secondary compression” process by the extension operation of the press cylinder 12 and is in a state shown in FIG. Finally, the push plate 8 performs a “push” stroke by the push cylinder 9 extending, and returns to a state where the tip end portion 8a is located at the push end position P shown in FIG. As the push cylinder 9 and the press cylinder 12 operate alternately in this way, the pushing plate 8 performs a stroke operation (inversion, primary compression, secondary compression, and pushing). As shown in the drawing, the distal end portion 8a of the pushing plate 8 draws a closed shape in which the operation locus connects four points.

  In the vicinity of the push cylinder 9 and the press cylinder 12, proximity switches (14, 15, 16, and 17) for detecting that the expansion and contraction operations have reached the extension end and the contraction end are provided. The first proximity switch 14 serving as a push end detection means detects that the operation of the push cylinder 9 has reached the extended end. The second proximity switch 15 detects that the operation has reached the contracted end by detecting the dog 12 a attached to the press cylinder 12. The third proximity switch 16 detects that the operation of the push cylinder 9 has reached the contracted end. The fourth proximity switch 17 detects that the operation of the press cylinder 12 has reached the extended end. The first proximity switch 14 and the third proximity switch 16 are fixedly attached to the dust box 3, while the second proximity switch 15 and the fourth proximity switch 17 are attached to the slider 5 side. The push cylinder 9 moves with the expansion and contraction operation.

  FIG. 3 is a hydraulic circuit diagram relating to the push cylinder 9 and the press cylinder 12. The hydraulic circuit includes a tank 18, a pump 19, a back pressure valve 20, a push cylinder solenoid valve 21, a press cylinder solenoid valve 22, a relief valve 23 and 24, a pressure reducing valve 25, a check valve 26, 27, 28, 29, The filters 30 and 31 are connected as shown in the figure. When the pushing plate 8 is stopped at the original position (FIG. 2A), the cylinders 9 and 12 are in the extended state, and the electromagnetic valves 21 and 22 are in the neutral position.

  The one-cycle stroke operation described above will be described as the operation of the hydraulic circuit components. When the solenoid 22s of the press cylinder solenoid valve 22 is excited, the press cylinder 12 contracts by supplying hydraulic pressure to the port 12s. Inversion operation is performed. After the reversal is completed, the excitation is turned off, the press cylinder solenoid valve 22 returns to the neutral position, and both the ports 12e and 12s of the press cylinder 12 are sealed. Next, when the solenoid 21s of the push cylinder solenoid valve 21 is excited, the push cylinder 9 contracts by supplying hydraulic pressure to the port 9s, and the primary compression operation is performed. After completion of the primary compression, the excitation is turned off, the push cylinder solenoid valve 21 returns to the neutral position, and both ports 9e and 9s of the push cylinder 9 are sealed.

  Subsequently, when the solenoid 22e of the solenoid valve 22 for the press cylinder is excited, the press cylinder 12 is expanded by supplying hydraulic pressure to the port 12e, and a secondary compression operation is performed. After the completion of the secondary compression, the excitation is turned off, the press cylinder solenoid valve 22 returns to the neutral position, and both ports 12e and 12s of the press cylinder 12 are sealed. Finally, when the solenoid 21e of the push cylinder solenoid valve 21 is energized, the push cylinder 9 is extended by being supplied with hydraulic pressure to the port 9e, and the pushing operation is performed. After the push-in is completed, the excitation is turned off, the push cylinder solenoid valve 21 returns to the neutral position, and both the ports 9e and 9s of the push cylinder 9 are sealed.

  Between the vehicle body 1a and the main girder 2a fixed to the bottom surface of the dust storage box 2, a weighing device 32 for measuring the weight of the dust stored in the dust storage box 2 is provided (see FIG. 1). FIG. 4 is a plan view showing the positional relationship of the weighing device 32 on the vehicle body 1a. 1 and 4, the weighing device 32 includes a pair of beam-type front load cells 33 provided in the vicinity of the left and right ends of the front side of the vehicle body 1a, and the vehicle width direction of the rear side of the vehicle body 1a. And a pair of beam-type rear load cells 34 provided in the vicinity of the left and right ends. Here, as shown in FIGS. 1 and 4, the longitudinal direction of the vehicle body 1a is defined as the X direction, the vehicle width direction is defined as the Y direction, and the height direction is defined as the Z direction.

  FIG. 5 is an enlarged view of a main part of FIG. 1 showing a mounting structure of the front load cell 33 and the rear load cell 34. In FIG. 5 (see also FIG. 4), the front load cell 33 and the rear load cell 34 are axially oriented sideways (the front load cell 33 is in the X direction, and the rear load cell 34 is in the Y direction) via bolts 35 through the pedestal 36. Are fixed on the vehicle body 1a. Small diameter portions 33a and 34a on the free end side of the front load cell 33 and the rear load cell 34 (the front load cell 33 is the rear side in the X direction and the rear load cell 34 is the outer side in the Y direction) are connected to the main beam 2a via the spherical bearing 37. It is connected to a fixed bracket 38. Thereby, the front load cell 33 and the rear load cell 34 are supported in a cantilever state (cantilever state), and the load of the dust container 2 that acts in the radial direction (lower side in the Z direction in FIG. 1) on the free end side. As a result, a slight bending deformation occurs, and an applied load signal (a signal corresponding to the load) is output as an electrical signal from the cables 33b and 34b. Since the front load cell 33 and the rear load cell 34 receive the load of the dust container 3 together with the dust container 2, the dust remaining in the dust container 3 without being stored in the dust container 2 by the pushing plate 8 is also stored. Can be weighed.

Returning to FIG. 1, the dust input box 3 is provided with a cover member 39 that can open and close the input port 3a. The cover member 39 includes an upper cover 40 that opens and closes the upper portion of the insertion port 3a, and a lower cover 41 that opens and closes the lower portion of the insertion port 3a.
The upper cover 40 is slidable in the vertical direction at the top of the charging port 3a, and can be opened and closed by sliding the charging port 3a up and down. Thereby, the upper part of the insertion port 3a can be closed by sliding the upper cover 40 to a lower position (solid line position in FIG. 1). Further, the upper cover 40 is slid to the upper position (the two-dot chain line position in FIG. 1) to open the charging port 3a, whereby dust can be charged into the dust charging box 3 from the charging port 3a.

The lower cover 41 is rotatably attached to the lower portion of the insertion port 3a, and can change between a standing posture (a solid line position in FIG. 1) and a horizontal posture (a two-dot chain line position in FIG. 1). The lower cover 41 is provided over almost the entire length in the vehicle width direction. Therefore, the lower part of the insertion port 3a can be closed by setting the lower cover 41 in the standing posture. Thereby, since the inlet 3a can be closed by the upper cover 40 and the lower cover 41, the odor of the dust accommodated in the dust storage box 2 is externally introduced from the inlet 3a during the traveling of the garbage collection vehicle 1. It is possible to prevent leakage.
Further, when the lower cover 41 is in a horizontal posture, when the operator puts the dust through the insertion port 3a, the dust can be once placed on the placement surface 41a of the lower cover 41, and the dust throwing workability is improved. Can be increased.

  FIG. 6 is a rear view of the garbage truck 1. In FIG. 6, switch boxes SB1 and SB2 are provided at the rear portions of the left and right side walls 3c of the dust box 3, respectively. On the side surface of the switch box SB1, there is an operation selection switch 42 for outputting an operation command for selecting either “continuous cycle” or “1 cycle” operation mode as the operation of the push-in plate 8, A start switch 43 for outputting an operation command for starting an operation in each operation mode, and a stop switch 44 as a stop operation means for outputting an operation command for causing the pushing plate 8 to stop at the push-in end position P for a continuous cycle operation. Are provided.

The switch box SB2 outputs an operation command for outputting an operation command for measuring the weight of the dust at the front and rear load cells 33, 34, and an operation command for resetting the front and rear load cells 33, 34. A display unit 47 is provided for displaying weight values measured by the front and rear load cells 33 and 34 by the tare switch 46 and the photoelectric tube.
The metering switch 45 is not operated because it is automatically weighed simultaneously with the end of pushing of the push-in plate 8 by the control device 51, which will be described later, during normal dust storage work, but cannot be automatically metered due to a failure of the control device 51. The weighing operation is performed in the event of an emergency. Further, the tare pulling switch 46 is operated when the refuse collection vehicle 1 arrives at each collection place and before the dust storage operation is performed. Thus, even if rainwater or the like enters the dust storage box 2 while the garbage truck 1 is traveling, the weight of the invading rainwater can be reduced by resetting the front and rear load cells 33 and 34 by the tare pulling switch 46. Since it can exclude, it can prevent that measurement accuracy falls.

  At the rear part of the right side wall 3c, a closing detection means 48 for detecting that the charging port 3a is closed is provided. The closing detection means 48 includes a fifth proximity switch 49 that detects that the upper cover 40 is in a lower position, and a sixth proximity switch 50 that detects that the lower cover 41 is in a standing posture. .

  FIG. 7 is a block diagram showing the configuration of the control device 51. The control device 51 is a part of a PLC (programmable logic controller) and includes a CPU, a memory, and the like. The outputs of the first to fourth proximity switches 14 to 17 are input to the control device 51. In addition, an operation command for the operation selection switch 42, the start switch 43, and the stop switch 44 of the switch box SB1 and an operation command for the weighing switch 45 and the tare weight switch 46 of the switch box SB2 are input to the control device 51. The push cylinder solenoid valve 21 and the press cylinder solenoid valve 22 are excited by the control device 51. The front load cell 33 and the rear load cell 34 of the weighing device 32 are weighed by the control device 51. The control device 51 includes a storage unit 51m that stores therein weight value data measured by the weighing device 32. The weight value stored in the storage unit 51m of the control device 51 is displayed by the control device 51 on the display unit 47 of the switch box SB2.

  Next, the overall operation of the garbage truck configured as described above as viewed from the control device 51 side will be described with reference to the flowcharts of FIGS. FIG. 8 and FIG. 9 are two diagrams and show one flowchart executed in the control device 51. Characters A and B circled in FIG. 8 are connected to A and B in FIG. 9, respectively.

  In FIG. 8, the CPU of the control device 51 (hereinafter simply referred to as “CPU”) waits for the start switch 43 to be turned on when the process is started (step S1). The electromagnetic valve 22 is excited to start the reversal of the pushing plate 8 (step S2), and the reversal process is continued until the second proximity switch 15 is turned on (repetition of steps S2 to S3). When the second proximity switch 15 is turned on, the CPU stops the reversal (step S4). Subsequently, the CPU excites the push cylinder electromagnetic valve 21 in the direction in which the push cylinder 9 contracts to cause the push plate 8 to perform a primary compression stroke (step S5). The primary compression is performed until the third proximity switch 16 is turned on (repetition of steps S5 to S6). When the third proximity switch 16 is turned on, the primary compression is stopped (step S7).

  Next, the CPU excites the press cylinder solenoid valve 22 in the direction in which the press cylinder 12 extends to cause the pressing plate 8 to perform a secondary compression stroke (step S8). Secondary compression is performed until the fourth proximity switch 17 is turned on (repetition of steps S8 to S9). When the fourth proximity switch 17 is turned on, the secondary compression is stopped (step S10). Subsequently, the CPU excites the push cylinder electromagnetic valve 21 in the direction in which the push cylinder 9 extends to cause the push plate 8 to perform a pushing process (step S11 in FIG. 9). The pushing operation is performed until the first proximity switch 14 is turned on (repetition of steps S11 to S12). When the first proximity switch 14 is turned on, the pushing operation is stopped (step S13).

  Next, the CPU checks whether or not the command from the operation selection switch 42 is one cycle (step S14). When the 1-cycle operation is performed, the CPU monitors whether the fifth proximity switch 49 is turned on and the sixth proximity switch 50 is turned on (step S15). In the case of the one-cycle operation, since the dust storage operation is completed by stopping the pushing of the pushing plate 8, the operator places the upper cover 40 in the upper position so as to move the dust collecting vehicle 1 to the next collection place. And the lower cover 41 is rotated from the horizontal posture to the standing posture to close the insertion port 3a. As a result, the fifth proximity switch 49 and the sixth proximity switch 50 are turned on, and the CPU proceeds from step S15 to step S16.

In step S <b> 16, the CPU weighs the weight value of the dust stored in the dust container 2 by the front load cell 33 and the rear load cell 34 of the weighing device 32. Thereafter, the CPU stores the weight value of the dust weighed by the weighing device 32 in the storage unit 51m of the control device 51 and displays it on the display unit 47 of the switch box SB2 (step S17).
Thus, when it is detected by the first proximity switch 14 that the pushing plate 8 has moved to the pushing end position P, that is, when it is detected that one cycle operation has been finished, the weighing device 32 automatically determines the weight of the dust. Therefore, the operation at the end of the housing operation is facilitated, and the working efficiency can be improved.
In addition, since the weighing is performed after the one-cycle operation by the pushing plate 8 is completed, the dust container 2 is vibrated in the vertical direction during the operation of the pushing plate 8 and acts on the weighing device 32. It is possible to prevent the load from changing and the measurement accuracy from being lowered.
Furthermore, since the input port 3a is closed by the upper cover 40 and the lower cover 41 and then weighed, it is possible to prevent the dust from being erroneously input from the input port 3a during measurement.

On the other hand, when the continuous cycle operation is performed in step 14, the CPU checks whether or not the stop switch 44 is turned on during the operation of the immediately preceding one-cycle process (steps S1 to S13). (Step S18).
If the stop switch 44 is not turned on, the process returns to step S2 in FIG. 8, and the above-described processes are repeated, and the continuous cycle operation is repeated until the stop switch 44 is turned on. If the stop switch 44 is turned on, the process proceeds to step 15, and the CPU monitors whether the fifth proximity switch 49 is turned on and the sixth proximity switch 50 is turned on.

In the case of continuous cycle operation, the dust storage operation is completed when the stop switch 44 is turned on. Here, since the stop switch 44 is already turned on in step S18, the operator slides the upper cover 40 from the upper position to the lower position in order to move the garbage truck 1 to the next collection location. Then, the lower cover 41 is rotated from the horizontal posture to the standing posture to close the insertion port 3a. As a result, the fifth proximity switch 49 and the sixth proximity switch 50 are turned on, and the CPU proceeds from step S15 to step S16.
In step S <b> 16, the CPU measures the weight value of the dust stored in the dust storage box 2 by the front load cell 33 and the rear load cell 34 of the weighing device 32. Thereafter, the CPU stores the weight value of the dust weighed by the weighing device 32 in the storage unit 51m of the control device 51 and displays it on the display unit 47 of the switch box SB2 (step S17).
As described above, when it is detected by the first proximity switch 14 and the stop switch 44 that the pushing plate 8 has moved to the pushing end position P, that is, when it is detected that the continuous cycle operation has been finished, the weighing device 32 automatically In addition, since the weight of the dust is weighed, the operation at the end of the housing operation becomes easy, and the work efficiency can be improved.
In addition, since the weighing is performed after the continuous cycle operation by the pushing plate 8 is completed, the dust container 2 acts in the vertical direction during the operation of the pushing plate 8 and acts on the weighing device 32. It is possible to prevent the load from changing and the measurement accuracy from being lowered.
Furthermore, since the input port 3a is closed by the upper cover 40 and the lower cover 41 and then weighed, it is possible to prevent the dust from being erroneously input from the input port 3a during measurement.

FIG. 10 is a side sectional view showing a garbage truck according to the second embodiment of the present invention. In the figure, the main difference between this embodiment and the first embodiment is that the storage system for storing the dust thrown into the dust storage box 3 in the dust storage box 2 is a press-type storage system. Instead, a rotating plate type accommodation method is used.
Hereinafter, the rotating plate type accommodation method of the present embodiment will be described in detail. A rotating plate 52 and a pushing plate 53 are provided in the dust box 3. The rotating plate 52 is used to scrape the dust thrown into the dust throwing box 3 upward from the arcuate bottom 3e formed in the dust throwing box 3, and is integrated with the lower support shaft 54. And can be rotated about its axis. The pushing plate 53 is for pushing the dust scraped up on the rotating plate 52 into the dust container 2 on the front side, and is integrated with the upper support shaft 55 and swings forward and backward around the axis. Is possible. The lower and upper support shafts 54 and 55 extend parallel to each other across the dust throwing box 3, and both end portions thereof are respectively attached to the left and right side walls 3 c of the dust throwing box 3 via bearings (not shown). It is supported in a freely penetrating manner.

The rotating plate 52 is rotationally driven by a hydraulic motor 56 (rotational driving means) so as to be able to rotate 360 ° forward and backward, and the motor 56 rotates the lower support shaft 54 to be integrated with the lower support shaft 54. The rotating plate 52 rotates. Note that the clockwise direction indicated by the arrow in FIG. 10 is the forward rotation direction of the rotating plate 52.
The pushing plate 53 is swung forward and backward around the upper support shaft 55 by expansion and contraction of a pair of pushing cylinders 57 (pushing drive means). The cylinder side end portion of the pushing cylinder 57 is attached to the left and right side walls 3 c by pins 58, and the piston side end portion is connected to the upper end portion of the pushing plate 53 by pins 59.

FIG. 11A is an operation explanatory view in which only the rotating plate 52, the pushing plate 53, and the pushing cylinder 57 are extracted from FIG. In the present embodiment, the rotation of the rotating plate 52 indicated by the circular locus R in the direction of the arrow and the swinging operation of the push-in plate 53 indicated by the arc locus S in the direction of the arrow indicate that the dust is placed in the dust box 3. The thrown dust is stored in the dust container 2. In other words, the rotating plate 52 starts a “rotating” process in which the front end portion 52a of the rotating plate 52 shown in FIG. .
When the leading end 52a of the rotating plate 52 reaches the approximately 12:00 position shown in (b), the leading end 53a of the pushing plate 53 swings backward (in the direction of the arrow Sr) as the pushing cylinder 57 contracts. When the "backward" stroke is performed and the tip 53a swings back to the position shown in (c) (backward end position), the backward swing of the push-in plate 53 stops. At this time, since the rotating plate 52 continues to rotate even while the push-in plate 53 is retracted, it is possible to prevent the rotating plate 52 from interfering with the rotating plate 52 during the retracting.
Thereafter, when the tip 52a of the rotating plate 52 continues to rotate and returns to the original position shown in (d) (approximately 9 o'clock position), the rotation by the rotating plate 52 stops and the pushing cylinder 57 extends. As a result, a “push” process is performed in which the tip 53a of the push plate 53 swings forward (in the direction of the arrow Sf). And if the front-end | tip part 53a of the pushing board 53 rocks | fluctuates forward to the position (pushing completion position P) shown to (a), the rocking | fluctuation forward of the pushing board 53 will stop. In this way, by operating the motor 56 and the pushing cylinder 57, a one-cycle stroke operation is performed by rotating the rotating plate 52 and moving the pushing plate 53 back and forth.
Therefore, in the one-cycle process by rotation / retraction / push-in, the rotation plate 52 first starts to rotate from the original position, the push-in plate 53 moves back to the retreat end position during the rotation, and the rotation plate 52 further moves to the original position. This means a series of operations in which the pushing plate 53 pushes from the reverse end position to the push end position P after the rotation is stopped after returning to step S2.

  In the vicinity of the lower support shaft 54 and the upper support shaft 55, proximity switches (60 to 62) for detecting the respective operation positions of the rotating plate 52 and the pushing plate 53 are provided. The first proximity switch 60 detects the dog 52b attached to the base end of the rotating plate 52, thereby detecting that the tip 52a is in the original position. Further, the dog 52b is formed in an arc shape substantially concentric with the center of the lower support shaft 54, and the first proximity switch 60 has the tip 52a of the rotating plate 52 from the original position to the position just before the above-mentioned 12:00. The dog 12a is detected until it rotates. As a result, the proximity switch 60 detects that the tip 52a of the rotating plate 52 is at the approximately 12:00 position by going from the detection state to the non-detection at the approximately 12:00 position.

  The second proximity switch 61 detects the dog 55a attached to the upper support shaft 55, thereby detecting that the pushing plate 53 has reached the retreat end position (FIG. 11C). The third proximity switch 62 as the push-in end detecting means detects the dog 55a, thereby detecting that the push-in plate 53 has reached the push-in end position (FIG. 11 (a)). The first to third proximity switches 60 to 62 are fixedly attached to the outer surface of the side wall 3c of the dust box 3.

  FIG. 12 is a hydraulic circuit diagram relating to the motor 56 and the pushing cylinder 57. The hydraulic circuit is configured by connecting a tank 63, a pump 64, a pressure control valve 65, a motor solenoid valve 66, a pushing cylinder solenoid valve 67, check valves 68 and 69, and a filter 70 as shown in the figure. Yes. When the rotary plate 52 is stopped at the original position (FIG. 11A), the motor 56 is in a drive stop state, and the motor solenoid valve 66 is in the neutral position. When the pushing plate 53 is stopped at the pushing end position (FIG. 11A), the pushing cylinder 57 is in the extended state, and the pushing cylinder solenoid valve 67 is in the neutral position.

  The above-described one-cycle stroke operation will be described as the operation of the hydraulic circuit components. When the solenoid 66n of the motor solenoid valve 66 is excited, the pump 56 supplies the hydraulic pressure to the motor 56 via the check valve 68 and the motor solenoid valve 66. Is supplied, and the motor 56 is driven to rotate forward, whereby the rotation (forward rotation) of the rotating plate 52 is performed. When the rotating plate 52 rotates to a position of approximately 12:00, the solenoid 66s of the push-in cylinder electromagnetic valve 67 is excited while holding the solenoid 66n in an excited state, and the hydraulic pressure discharged from the motor 56 is reduced to the check valve 69 and Hydraulic pressure is supplied to the port 57 s of the push cylinder 57 via the push cylinder electromagnetic valve 67. As a result, the pushing cylinder 57 contracts and the pushing plate 53 is retracted. After the reverse operation is finished, the solenoid 67s is turned off, the push-in cylinder solenoid valve 67 returns to the neutral position, and both ports 57e and 57s of the push-in cylinder 57 are sealed. At that time, the solenoid 67s of the motor solenoid valve 66 is still in the excited state.

Thereafter, when the rotating plate 52 rotates to the original position, the solenoid 67s of the motor solenoid valve 66 is turned off, the motor solenoid valve 66 returns to the neutral position, and the forward drive of the motor 56 is stopped. Subsequently, when the solenoid 67e of the pushing cylinder solenoid valve 67 is excited, the pump 64 supplies the hydraulic pressure to the port 57e of the pushing cylinder 57 via the motor solenoid valve 66 and the check valve 69. As a result, the pushing cylinder 57 contracts and the pushing plate 53 is pushed. After the pushing is completed, the solenoid 67e is turned off, the pushing cylinder solenoid valve 67 returns to the neutral position, and both ports 57e and 57s of the pushing cylinder 57 are sealed. In some cases, the rotation of the rotating plate 52 may be stopped by biting dust between the tip 52a and the bottom 3e of the rotating plate 52 while the rotating plate 52 is rotating. In this case, the solenoid 66r of the motor solenoid valve 66 is excited, and the hydraulic pressure is supplied to the motor 56 by the pump 64 via the check valve 68 and the motor solenoid valve 66. 52 reverses. Thereby, the bitten dust can be removed.
Note that the weighing device 32, the cover member 39, and the switch boxes SB1 and SB2 in the present embodiment have the same configurations as those in the first embodiment, and thus description thereof is omitted.

  FIG. 13 is a block diagram illustrating a configuration of the control device 71. The control device 71 is a part of a PLC (programmable logic controller) and includes a CPU, a memory, and the like. The outputs of the first to third proximity switches 60 to 62 are input to the control device 71. In addition, an operation command for the operation selection switch 42, the start switch 43, and the stop switch 44 of the switch box SB1 and an operation command for the weighing switch 45 and the tare weight switch 46 of the switch box SB2 are input to the control device 71. The motor solenoid valve 66 and the pushing cylinder solenoid valve 67 are excited by the control device 71. The front load cell 33 and the rear load cell 34 of the weighing device 32 are weighed by the control device 71. The control device 71 includes therein a storage unit 71m that stores data of weight values measured by the weighing device 32. The weight value stored in the storage unit 71m of the control device 71 is displayed by the control device 71 on the display unit 47 of the switch box SB2.

  Next, the overall operation of the garbage truck configured as described above viewed from the control device 71 side will be described with reference to the flowcharts of FIGS. 14 and 15. FIG. 14 and FIG. 15 are two diagrams, and show one flowchart executed in the control device 71. Letters A and B circled in FIG. 14 are connected to A and B in FIG. 15, respectively.

  In FIG. 14, the CPU of the control device 71 (hereinafter simply referred to as “CPU”) waits for the start switch 43 to be turned on when the process starts (step S <b> 101). Is rotated forwardly, and the rotation plate 52 is started to rotate (forward rotation) from the original position (step S102). In the initial stage of rotation, the first proximity switch 60 is on, but when the rotating plate 52 rotates to the approximately 12:00 position, the first proximity switch 60 is turned off (step S103). As a result, the CPU excites the pushing cylinder electromagnetic valve 67 in the direction in which the pushing cylinder 57 contracts to retract the pushing plate 53 and continue the rotation of the rotating plate 52 (step S104). Next, when the second proximity switch 61 is turned on by the retraction of the pushing plate 53 (Step S105), the CPU stops the retreating of the pushing plate 53 and continuously rotates the rotating plate 52 (Step S106). Subsequently, when the first proximity switch 60 is turned on by the rotation of the rotating plate 52 (step S107), the CPU stops the rotation of the rotating plate 52 (step S108).

  Next, the CPU excites the pushing cylinder solenoid valve 67 in the direction in which the pushing cylinder 57 extends to start pushing the pushing plate 53 (step S109 in FIG. 15). Subsequently, when the third proximity switch 62 is turned on by pushing the pushing plate 53 (step S110), the CPU stops pushing (step S111).

  Next, the CPU checks whether or not the command from the operation selection switch 42 is one cycle (step S112). When the one-cycle operation is performed, the CPU monitors whether the fifth proximity switch 49 is turned on and the sixth proximity switch 50 is turned on (step S113). In the case of the one-cycle operation, since the dust storage operation is completed by stopping the pushing of the pushing plate 53, the operator places the upper cover 40 in the upper position so as to move the dust collecting vehicle 1 to the next collection place. And the lower cover 41 is rotated from the horizontal posture to the standing posture to close the insertion port 3a. As a result, the fifth proximity switch 49 and the sixth proximity switch 50 are turned on, and the CPU proceeds from step S113 to step S114.

In step S <b> 114, the CPU measures the weight value of the dust stored in the dust container 2 by the front load cell 33 and the rear load cell 34 of the weighing device 32. Thereafter, the CPU stores the weight value of the dust weighed by the weighing device 32 in the storage unit 71m of the control device 71 and displays it on the display unit 47 of the switch box SB2 (step S115).
Thus, when it is detected by the third proximity switch 62 that the pushing plate 53 has moved to the pushing end position P, that is, when it is detected that one cycle operation has been finished, the weighing device 32 automatically determines the weight of the dust. Therefore, the operation at the end of the housing operation is facilitated, and the working efficiency can be improved.
Further, since the weighing is performed after the one-cycle operation by the pushing plate 53 is finished, the dust container box 2 vibrates in the vertical direction during the operation of the pushing plate 53 and acts on the weighing device 32. It is possible to prevent the load from changing and the measurement accuracy from being lowered.
Furthermore, since the input port 3a is closed by the upper cover 40 and the lower cover 41 and then weighed, it is possible to prevent the dust from being erroneously input from the input port 3a during measurement.

On the other hand, in the above step 112, when the continuous cycle operation is performed, the CPU checks whether or not the stop switch 44 is turned on during the operation of the immediately preceding one-cycle process (steps S101 to S111). (Step S116).
If the stop switch 44 is not turned on, the process returns to step S102 of FIG. 14, the above-described processes are repeated, and the continuous cycle operation is repeated until the stop switch 44 is turned on. When the stop switch 44 is turned on, the process proceeds to step 113, and the CPU monitors whether the fifth proximity switch 49 is turned on and the sixth proximity switch 50 is turned on.

  In the case of continuous cycle operation, the dust storage operation is completed when the stop switch 44 is turned on. Here, since the stop switch 44 has already been turned on in step S116, the operator slides the upper cover 40 from the upper position to the lower position in order to move the garbage truck 1 to the next collection location. Then, the lower cover 41 is rotated from the horizontal posture to the standing posture to close the insertion port 3a. As a result, the fifth proximity switch 49 and the sixth proximity switch 50 are turned on, and the CPU proceeds from step S113 to step S114.

  In step S <b> 114, the CPU measures the weight value of the dust stored in the dust storage box 2 by the front load cell 33 and the rear load cell 34 of the weighing device 32. Thereafter, the CPU stores the weight value of the dust weighed by the weighing device 32 in the storage unit 71m of the control device 71 and displays it on the display unit 47 of the switch box SB2 (step S115).

Thus, when it is detected by the third proximity switch 62 and the stop switch 44 that the pushing plate 53 has moved to the pushing end position P, that is, when it is detected that the continuous cycle operation has been finished, the weighing device 32 automatically In addition, since the weight of the dust is weighed, the operation at the end of the housing operation becomes easy, and the work efficiency can be improved.
Further, since the weighing is performed after the continuous cycle operation by the pushing plate 53 is completed, the dust container box 2 vibrates in the vertical direction during the operation of the pushing plate 53 and acts on the weighing device 32. It is possible to prevent the load from changing and the measurement accuracy from being lowered.
Furthermore, since the input port 3a is closed by the upper cover 40 and the lower cover 41 and then weighed, it is possible to prevent the dust from being erroneously input from the input port 3a during measurement.

The present invention is not limited to each of the above embodiments. For example, in each of the above embodiments, the proximity switch (first proximity switch 14 and third proximity switch 62) is used as the push-in end detection unit. Instead of this, a configuration may be adopted in which the timer provided in the PLC detects that the time required for the indentation process has elapsed.
Further, in each of the above embodiments, the closing detection means 48 is configured by the fifth proximity switch 49 and the sixth proximity switch 50. However, the closing detection means 48 is configured by only one of the proximity switches. Also good.

Further, in each of the above embodiments, the cover member 39 is configured by the upper cover 40 and the lower cover 41, but the cover member 39 may be configured by only one of the covers.
In addition, the control devices 51 and 71 of each of the above embodiments control the timing for measuring the weight of the dust using the push-in end detection means (the first proximity switch 14 and the third proximity switch 62) and the closure detection means 48. However, it may be controlled only by the pushing end detection means.

It is side sectional drawing which shows the refuse collection vehicle by the 1st Embodiment of this invention. It is operation | movement explanatory drawing of the pushing board in the said refuse collection vehicle, a push cylinder, and a press cylinder. It is a hydraulic circuit diagram regarding the push cylinder and the press cylinder. It is a top view which shows the arrangement | positioning relationship of the weighing | measuring device on the vehicle body of the said refuse collection vehicle. It is a principal part enlarged view of FIG. 1 which shows the attachment structure of the said weighing | measuring device. It is a rear view of the said refuse collection vehicle. It is a block diagram which shows the structure of the control apparatus in the said garbage truck. It is a part of flowchart which shows the process performed in the said control apparatus, and comprises one flowchart with FIG. It is the other part of the flowchart which shows the process performed in the said control apparatus, and comprises one flowchart with FIG. It is side sectional drawing which shows the garbage truck by the 2nd Embodiment of this invention. It is operation | movement explanatory drawing of the rotating plate in the said refuse collection vehicle, a pushing board, and a press cylinder. It is a hydraulic circuit diagram regarding the said press cylinder and a motor. It is a block diagram which shows the structure of the control apparatus in the said garbage truck. It is a part of flowchart which shows the process performed in the said control apparatus, and comprises one flowchart with FIG. It is the other part of the flowchart which shows the process performed in the said control apparatus, and comprises one flowchart with FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dust collection truck 2 Dust storage box 3 Dust input box 3a Input port 8 Pushing plate 14 1st proximity switch (push completion detection means)
32 Weighing device 39 Cover member 44 Stop switch (stop operation means)
48 Closure detection means 51 Control device 52 Rotary plate 53 Push plate 62 Third proximity switch (push end detection means)
71 Controller

Claims (6)

A dust bin,
A dust input box provided connected to the dust storage box and having a dust input port;
A pushing plate for accommodating the dust thrown into the dust throwing box in the dust throwing box by a one-cycle operation in which the reversing, primary compression, secondary compression, and pushing are performed as one cycle process in the dust throwing box;
A weighing device for weighing the weight of the dust housed in the dust container box;
A pushing end detecting means for detecting that the pushing plate has moved to a pushing end position for ending the pushing; and
A controller that stops the one-cycle operation when the push-in end detection means detects the push-in end position during the one-cycle operation, and causes the weighing device to weigh the dust;
A garbage collection vehicle characterized by comprising: A dust bin,
A dust input box provided connected to the dust storage box and having a dust input port;
A rotating plate rotatably provided in the dust box,
It is provided in the dust box so as to be able to swing forward and backward, and the dust is thrown by a one-cycle operation in which rotation of the rotating plate, backward movement by the backward swing, and pressing by the forward swing are performed as one cycle process. A pushing plate for accommodating the dust put into the box in the dust containing box;
A weighing device for weighing the weight of the dust housed in the dust container box;
A pushing end detecting means for detecting that the pushing plate has moved to a pushing end position for ending the pushing; and
A controller that stops the one-cycle operation when the push-in end detection means detects the push-in end position during the one-cycle operation, and causes the weighing device to weigh the dust;
A garbage collection vehicle characterized by comprising: A cover member for opening and closing the input port provided in the dust input box;
A closing detection means for detecting that the inlet is closed by the cover member;
In the control device, when the pushing end detecting unit detects the pushing end position and the closing detecting unit detects the closing of the charging port during the one-cycle operation, The refuse collection vehicle according to claim 1 or 2, wherein A dust bin,
A dust input box provided connected to the dust storage box and having a dust input port;
Pushing in which the dust thrown into the dust throwing box is housed in the dust throwing box by a continuous cycle operation in which the operation of reversing, primary compression, secondary compression, and pushing in one cycle process is continued in the dust throwing box. The board,
A weighing device for weighing the weight of the dust housed in the dust container box;
A pushing end detecting means for detecting that the pushing plate has moved to a pushing end position for ending the pushing; and
Stop operation means for outputting an operation command for stopping the continuous cycle operation at the pushing end position;
When a stop operation command is output by the stop operation means during the continuous cycle operation, the continuous cycle operation is stopped when the push end detection means detects the push end position, and the weighing device A control device for weighing the dust,
A garbage collection vehicle characterized by comprising: A dust bin,
A dust input box provided connected to the dust storage box and having a dust input port;
A rotating plate rotatably provided in the dust box,
In the dust throwing box, it is provided so as to be able to swing forward and backward, and by a continuous cycle operation in which a rotation cycle of the rotating plate, a backward movement by the backward swing, and a pressing operation by the forward swing are continuously performed as one cycle step, A pushing plate for accommodating the dust thrown into the dust throwing box in the dust containing box;
A weighing device for weighing the weight of the dust housed in the dust container box;
A pushing end detecting means for detecting that the pushing plate has moved to a pushing end position for ending the pushing; and
Stop operation means for outputting an operation command for stopping the continuous cycle operation at the pushing end position;
When a stop operation command is output by the stop operation means during the continuous cycle operation, the continuous cycle operation is stopped when the push end detection means detects the push end position, and the weighing device A control device for weighing the dust,
A garbage collection vehicle characterized by comprising: A cover member for opening and closing the input port provided in the dust input box;
A closing detection means for detecting that the inlet is closed by the cover member;
In the control device, when a stop operation command is output by the stop operation means during the continuous cycle operation, the push end detection means detects the push end position, and the closure detection means The refuse collection vehicle according to claim 4 or 5, wherein said weighing device is configured to measure the weight of dust when the closing of the container is detected.

Images