JP6514613B2 - Garbage truck - Google Patents

Description

  The present invention relates to a refuse collection vehicle provided with a loading device capable of compressing and storing refuse in a refuse storage box.

  Conventionally, a dust input box having a dust storage box and a loading device for temporarily holding dust introduced from the rear insertion port by an operator or the like and moving the dust into the interior of the dust storage box (“tail There is known a waste collection vehicle provided with a "gate").

  The loading device receives a driving force by hydraulic pressure, rotates around a support shaft extending in the width direction in the dust loading box, and pushes up the dust toward the dust storage box, and dust picked up by the rotating plate And a pushing plate that can be rocked back and forth. Then, in order to store the dust in the dust storage box by the loading device, first, the rotary plate is rotated to the push-up completion position flush with the floor portion of the dust storage box to push the dust to the dust storage box side. When the rotary plate reaches the push-up completion position, the rotation of the rotary plate is stopped, and the dust is pushed into the dust storage box by swinging the push plate forward.

  By the way, when the inside of the dust container box is almost full of dust, even if the pushing plate is swung forward, the dust can not be pushed in, and while the pushing plate is pushed, the rotary plate is pushed downward from the pushing up position. There are times when This is apt to occur when a high-repulsion dust is pushed by a pushing plate. When the rotating plate is pushed downward, among the debris on the rotating plate, debris that has fallen below the floor of the waste storage box is pinched between the pushing plate and the front rising portion of the waste input box. The waste can not be pushed into the waste storage box.

  Therefore, if the rotary plate is pushed downward from the push-up completion position while pushing the pushing plate while rocking the pushing plate forward, the rocking forward of the pushing plate is stopped and the pushing is performed for a predetermined distance. Retract the board. After the pressing plate is retracted, the rotating plate is pushed up and rotated to a complete position, and then the pressing operation of the pressing plate is resumed to push the dust into the dust storage box (Patent Document 1).

JP, 2008-214032, A (refer to Drawing 7)

  The operation of Patent Document 1 will be described based on FIGS. 8A to 8F. First, as shown in FIG. 8A, the rotary plate 100 is rotated forward (clockwise). Then, as shown in FIG. 8 (b), the dust D is pushed up to the dust storage box 2 side by the rotary plate 100. In a state where the dust D is pushed up, the normal rotation of the rotary plate 100 is stopped, and the pushing cylinder 102 is extended to swing the pushing plate 101 forward, thereby pushing the dust D to the dust storage box 2 side. As shown in FIG. 8C, when the rotary plate 100 is pushed downward from the push-up completion position as shown in FIG. 8C while the dust D is being pushed by the pushing plate 101, the forward movement of the pushing plate 101 is stopped. As shown in FIG. 8D, the pressing plate 101 is temporarily retracted. After the pressing plate 101 is retracted, the rotary plate 101 is normally rotated and pushed up. However, since the dust D which has been compressed recovers to the original shape, as shown in FIG. The dust D enters and fills in (see (d)) (same state as in FIG. 8 (b)). In this state, even if the pushing plate 101 is pushed again, as shown in FIG. 8 (f), the dust D is pushed into the dust storage box 2 simply by pushing the rotary plate 100 downward as described above. I can not

  In addition, when the pushing operation of the pressing plate is repeated when dust can not be pushed into the dust storage box, as shown in FIG. 8 (f), the dust is a hard dust with a large repulsive force. When pressing the hard dust D, which has fallen below the floor 2e of the storage box 2 to the front rising portion 3H of the dust input box 3 with the pushing plate 101, a large reaction force is exerted on the front rising portion 3H and the pushing plate 101. Since it acts, unless the dust D is divided by the pressing plate 101, the rising portion 3H in the front of the dust input box and the pressing plate 101 may be damaged, and there is room for improvement.

  Then, an object of this invention is to provide the refuse collection vehicle which can push refuse in a refuse storage box reliably, without damaging.

  The dust collection vehicle according to the present invention comprises a dust storage box, a waste inlet connected to the rear of the dust storage box, and a loading device for moving the dust loaded from the insertion port to the dust storage box. A loading box, wherein the loading device is located within the waste loading box and rotates around a support shaft extending in the width direction of the waste loading box so as to push the waste up to the waste storage box side A dust collection vehicle comprising: a rotary plate rotating to a push-up completion position; and a pushing plate located in the dust input box and moving in the front-rear direction to push the dust pushed up by the rotary plate into the dust storage box. Detection means for detecting that the rotary plate is lowered below the push-up completion position when the pushing plate is in the pushing operation, and the detection plate of the pushing plate based on the detection signal from the detection means. Stop pushing operation A stop means, a rotary plate drive means for rotating the rotary plate to the push-up completion position after stopping the push-in plate by the stop means, and a rotary plate drive means for rotating the rotary plate to the push-up completion position, the stopped state And pressing plate driving means for pressing the pressing plate.

  According to the above configuration, when it is detected that the rotary plate is lowered below the push-up completion position while the pressing plate is in the pressing operation, the pressing operation of the pressing plate is stopped. The dust is moved upward by rotating the rotating plate to the complete position after stopping the pressing plate. By moving the dust upward as described above, when the pressing plate in the stopped state is pushed in, the rotary plate is not pushed downward, and the dust is smoothly moved along the upper surface of the rotary plate to accommodate the dust. It can be firmly pushed into the box.

  In the dust collection vehicle of the present invention, the dust introduced into the dust insertion box is pushed into the dust storage box and accommodated by performing the rotation operation of the rotating plate and the pushing operation of the pushing plate. At the time of loading cycle operation, when the detection means detects that the rotary plate has been lowered below the push-up completion position, the stopping means stops the pushing operation of the pushing plate, and the rotary plate drive is performed after the stop. The rotating plate may be rotated to the push-up completion position by the means, and then the pushing plate in the stopped state may be pushed in by the pushing plate driving means.

  As described above, when the rotary plate moves downward and the dust can not be pushed into the dust storage box during the loading cycle operation, the pushing operation of the pushing plate is stopped by the stopping means, and rotated by the rotary plate driving means after stopping. After pressing the plate to the complete position, push the stop plate in the stopped state by pressing plate drive means to push quickly the dust that can not be pushed by performing the push operation continuously into the dust storage box. Can.

  According to the present invention, when the pushing plate is in the pushing operation, if the rotating plate is lowered below the pushing-up completion position, the dust is removed by positioning the rotating plate at the pushing-up completion position with the pushing plate stopped. Move up. Since the pushing operation of the pushing plate is resumed after this state, it is possible to provide a dust collection vehicle capable of reliably pushing the dust into the dust storage box without breakage.

It is the side view which made the cross section the rear part of the refuse collection truck by one embodiment of the present invention. (A)-(d) is operation | movement explanatory drawing of the rotating plate and pushing-in board in a refuse collection vehicle. FIG. 6 is a hydraulic circuit diagram of a hydraulic motor and a pressing cylinder in the dust collection vehicle. It is a block diagram which shows the control structure of the whole control apparatus of a refuse collection vehicle. It is a block diagram showing control composition of a control device in loading operation of a garbage collection car. It is a flowchart which shows the pressing process performed in a control apparatus. (A)-(e) is the schematic of the principal part of the refuse collection vehicle which shows loading operation. (A)-(f) is the schematic of the principal part of the refuse collection vehicle which shows the conventional loading operation | movement.

  One embodiment of a refuse collection vehicle of the present invention will be described based on the drawings. In the following description of the directions, the front and rear directions are directions based on the front and rear of the dust collection vehicle. Further, the width direction is the left-right direction when the refuse collection vehicle is viewed from the front or the rear.

  FIG. 1 is a side view, with a cross section, of the rear of a refuse collection vehicle 1 equipped with a loading device. The dust collection vehicle 1 uses a rotating plate type storage system. The waste collection vehicle 1 includes a waste storage box 2 mounted on a vehicle body 1a and a waste input box 3 connected to the rear part. At the rear of the dust input box 3, an input port 3a into which dust is input is formed. At the lower front of the dust input box 3, an opening 3 d for accommodating the dust introduced into the dust input box 3 in the dust storage box 2 is provided.

  The dust input box 3 is provided with a cover member 39 capable of opening and closing the inlet 3a. The cover member 39 includes an upper cover 40 for opening and closing the upper portion of the inlet 3a and a lower cover 41 for opening and closing the lower portion of the inlet 3a.

  The lower cover 41 is rotatably attached to the lower portion of the insertion opening 3a, and can change its posture to an upright posture and a horizontal posture (indicated by a broken line in FIG. 1). The lower cover 41 is provided over substantially the entire length in the vehicle width direction. When the lower cover 41 is in the horizontal position, when the operator throws in the dust from the inlet 3a, the dust can be once placed on the lower cover 41, and the workability of the dust charging can be enhanced.

  A rotary plate 52 and a pressing plate 53 are provided in the dust input box 3. The rotary plate 52 is for scraping the dust introduced into the dust input box 3 from the arc-shaped dust receiving portion (also referred to as “hopper”) 3 e formed in the dust input box 3 to the upper front. And is integral with the lower support shaft 54 extending in the width direction, and is rotatable about its axis. The pushing plate 53 is for moving (pushing) the scraped up debris on the rotating plate 52 into the waste storage box 2 connected to the front of the waste loading box 3 and has an upper support shaft 55 extending in the width direction. And is pivotable forward and backward about its axis. The lower and upper support shafts 54 and 55 extend in parallel with each other so as to extend in the width direction in the dust input box 3, and both ends thereof are both left and right side walls 3c of the dust input box 3 (only one in FIG. (Shown) is rotatably supported through bearings (not shown). In addition, it is not essential that the lower and upper support shafts 54 and 55 be a single shaft, and the portions supported by the bearings can be two shafts separated to the left and right.

  The rotary plate 52 is rotationally driven by a hydraulic motor 56 as a rotational driving means shown in FIG. 3 so as to be capable of rotating 360 ° forward and reverse. The hydraulic motor 56 rotationally drives the lower support shaft 54 to The integral rotary plate 52 rotates. The clockwise direction indicated by the arrow in FIG. 1 is the forward rotation direction of the rotary plate 52.

  The pushing plate 53 is pivoted forward and backward around the upper support shaft 55 by the expansion and contraction of a pair of pushing cylinders (also referred to as a push cylinder) 57 provided in the width direction. The cylinder side end of the pushing cylinder 57 is attached to the left and right side walls 3 c by the pin 58, and the piston side end is connected to the upper end of the pushing plate 53 by the pin 59.

  FIGS. 2A to 2D are operation explanatory views showing only the rotary plate 52, the pushing plate 53 and the pushing cylinder 57 in an extracted manner. In the present embodiment, the inside of the dust input box 3 is provided by the rotational operation of the rotary plate 52 indicated by the circular locus R in the arrow direction and the swinging operation of the pushing plate 53 indicated by the circular arc locus S in the double arrow direction. The introduced waste is accommodated in the refuse containing box 2. That is, the rotary plate 52 rotates clockwise by driving the hydraulic motor 56 with the rotary plate 52 shown in FIG. 2A set at a position (horizontal position) of approximately 9 o'clock in the figure (horizontal position) as the original position To rotate. Further, the original position (the push-up completion position) is a position which is flush with the floor 2e of the dust container 2 as shown in FIG. 7 (b).

  Then, when the rotary plate 52 reaches the approximately 12 o'clock position (stand up position) shown in FIG. 2B, the tip end portion 53a of the push plate 53 moves backward (in the direction of arrow Sr) by the contraction operation of the push cylinder 57. The swinging "retraction" is performed, and when the tip end portion 53a swings backward to the position (retraction end position) shown in FIG. 2C, the swinging back of the pressing plate 53 is stopped. At that time, since the rotating plate 52 is continuously rotated even while the pressing plate 53 is retreating, interference with the rotating plate 52 can be prevented during the retreating.

  After that, when the rotating plate 52 continues to rotate and returns to the original position shown in FIG. 2D (about 9 o'clock position, that is, the horizontal lifting completion position), the rotating plate 52 stops rotating and is pressed. When the cylinder 57 is extended, the tip end portion 53a of the pushing plate 53 swings forward (in the direction of the arrow Sf) to perform pushing. Then, when the tip end portion 53a of the pressing plate 53 swings forward to the position shown in FIG. 2A (the pressing end position P), the forward swinging of the pressing plate 53 is stopped. In this manner, by operating the hydraulic motor 56 and the pressing cylinder 57, one cycle (loading cycle) operation is performed by the rotation of the rotary plate 52 and the retraction and pressing of the pressing plate 53.

  Therefore, in one cycle (loading cycle) operation by rotation, retraction, and pushing, the rotating plate 52 starts to rotate from the original position first, and the pressing plate 53 retracts to the retraction end position in the middle of the rotation. This means a series of operations in which the pushing plate 53 is pushed from the backward end position to the pushing end position P after the rotating plate 52 returns to the original position and is rotationally stopped. During this one-cycle operation, as will be described later, control is performed to enable loading when dust can not be loaded.

  In the vicinity of the lower support shaft 54 and the upper support shaft 55, proximity switches (60, 61, 62a, 62b) as detection units for detecting the respective operating positions of the rotary plate 52 and the push-in plate 53 are provided. . The first proximity switch 60 rotates from the original position (approximately 9 o'clock position, that is, the push-up completion position) where the rotary plate 52 is horizontal (or substantially horizontal) to the upright position (approximately 12 o'clock). By detecting the dog 52b attached to the base end of the rotary plate 52, the rotary plate 52 is in a position from the original position (approximately 9 o'clock position) to the upright position (approximately 12 o'clock position). Detect Further, the dog 52b is formed in an arc shape substantially concentric with the axial center of the lower support shaft 54, and the first proximity switch 60 has the tip 52a of the rotary plate 52 just before the clockwise position of the standing position from the original position. The dog 52b is detected until it rotates to the position. As a result, the first proximity switch 60 changes from the non-detection state to the detection state at the original position (the push-up completion position) and to the non-detection state from the detection state at the upright position.

  The second proximity switch 61 similarly detects the dog 52 b to detect that the rotary plate 52 is at a position of approximately 6 o'clock. In addition, the second proximity switch 61 is configured to detect the dog 52b until the rotary plate 52 rotates from the approximately 6 o'clock position to a position just before the original position (approximately 9 o'clock position, that is, approximately horizontal position). . As a result, the second proximity switch 61 changes from the detection state to the non-detection state at the original position (the push-up completion position). Therefore, the second proximity switch 61 constitutes detection means for detecting that the rotary plate 52 has been lowered downward from the original position (the push-up completion position).

  The third proximity switch 62a detects the dog 55a attached to the upper support shaft 55 to detect that the pushing plate 53 has reached the reverse end position (FIG. 2C). The fourth proximity switch 62b as the pressing end detecting means detects that the pressing plate 53 has reached the pressing end position (FIG. 2A) by detecting the dog 55a. The first to fourth proximity switches are fixedly attached to the outer surface of the side wall 3 c of the dust input box 3.

  FIG. 3 is a hydraulic circuit diagram of the hydraulic motor 56 and the pressing cylinder 57. As shown in FIG. The hydraulic circuit connects the tank 63, the pump 64, the pressure control valve 65, the motor solenoid valve 66 as a hydraulic valve, the push cylinder solenoid valve 67, the check valves 68 and 69, and the filter 70 as illustrated. It is configured. As the motor solenoid valve 66 and the push cylinder solenoid valve 67, a pilot type solenoid valve is used which operates a parent valve (spool) connected to the child valve by means of an electromagnetically operated child valve (spool). When the rotary plate 52 is stopped at the original position (FIG. 2A), the hydraulic motor 56 is in the drive stop state, and the motor solenoid valve 66 is in the neutral position. Further, when the pressing plate 53 is stopped at the pressing end position (FIG. 2A), the pressing cylinder 57 is in the extended state, and the pressing cylinder solenoid valve 67 is in the neutral position. Each of the solenoid valves 66 and 67 may be a direct acting solenoid valve in which the parent valve (spool) is directly electromagnetically operated.

  The one cycle (loading cycle) operation described above will be described as the operation of the hydraulic circuit component. When the solenoid 66n of the motor solenoid valve 66 is excited, the pump 64 via the check valve 68 and the motor solenoid valve 66 The hydraulic pressure is supplied to the hydraulic motor 56, and the hydraulic motor 56 is driven to rotate normally, whereby the rotation (forward rotation) operation of the rotary plate 52 is performed. When the rotary plate 52 is rotated to about 12 o'clock, the solenoid 67s of the push cylinder solenoid valve 67 is excited while holding the solenoid 66n in the excitation state, and the hydraulic pressure discharged from the hydraulic motor 56 is checked. The hydraulic pressure is supplied to the port 57s of the pressing cylinder 57 via the pressing cylinder solenoid valve 67. As a result, the pressing cylinder 57 is contracted and the pressing operation of the pressing plate 53 is performed. After the end of the reverse movement, the solenoid 67s is turned off, the push cylinder solenoid valve 67 returns to the neutral position, and both ports 57e and 57s of the push cylinder 57 are sealed. At this time, the solenoid 66n of the motor solenoid valve 66 still maintains the energized state.

  Thereafter, when the rotary plate 52 is rotated to the original position (push-up completion position), the solenoid 66n of the motor solenoid valve 66 is not energized, the motor solenoid valve 66 returns to the neutral position, and the forward drive of the hydraulic motor 56 is stopped. Do. Subsequently, when the solenoid 67e of the push cylinder solenoid valve 67 is excited, the pump 64 supplies hydraulic pressure to the port 57e of the push cylinder 57 via the motor solenoid valve 66 and the check valve 69. As a result, the pressing cylinder 57 is extended and the pressing operation of the pressing plate 53 is performed. After the end of pressing, the solenoid 67e turns off excitation, the pressing cylinder solenoid valve 67 returns to the neutral position, and both ports 57e and 57s of the pressing cylinder 57 are sealed. The rotation of the rotary plate 52 may be stopped by catching dust between the tip 52a and the bottom 3e of the rotary plate 52 while the rotary plate 52 is rotating. In this case, the solenoid 66r of the motor solenoid valve 66 is excited, the hydraulic pressure is supplied to the hydraulic motor 56 by the pump 64 through the check valve 68 and the motor solenoid valve 66, and the hydraulic motor 56 is reversely driven. The rotating plate 52 is reversed. Thus, the trapped dust can be removed.

  The first switch box SB1 is provided at the rear of the side wall 3c on one side (for example, the left side) of the left and right side walls 3c of the dust input box 3, while the second switch box is provided on the rear side of the other side wall 3c (for example, the right side) SB2 is provided. As shown in FIG. 4, the switch box SB1 includes a loading switch 42 for performing one cycle of loading, and a reverse switch 43 for reversely rotating the rotating plate 52 (rotating counterclockwise). A pressing switch 44 for pressing the pressing plate 53 alone and an emergency stop switch 45 for stopping the rotating plate 52 and the pressing plate 53 in an emergency are provided. Further, the switch box SB2 is provided with the emergency stop switch 45. When the loading switch 42 is turned ON, the normal rotation operation of the rotary plate 52 and the pushing operation of the pushing plate 53 are not stopped unless the emergency stop switch 45 is pressed.

  FIG. 4 is a block diagram showing the overall configuration of the control device 71. As shown in FIG. 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 aforementioned first to fourth proximity switches are inputted to this control device 71. Further, an operation command of the loading switch 42, reverse rotation switch 43, push switch 44, and emergency stop switch 45 of the first switch box SB1 and an operation command of the emergency stop switch 45 of the second switch box SB2 are input to the control device 71. Be done. The motor solenoid valve 66 and the push cylinder solenoid valve 67 are excited by the controller 71.

  Also, FIG. 5 shows a control configuration of the control device 71 that controls when the rotary plate 52 is lowered from the original position (push-up completion position) when the loading switch 42 is turned on to perform the loading operation. There is. That is, in the control device 71, when the pushing plate 53 is in the pushing operation with the rotary plate 52 positioned at the original position (push-up complete position), the rotary plate 52 is lower than the original position (push-up complete position). Stopping means 48 for stopping the pushing operation of the pushing plate 53 based on a detection signal from the second proximity switch 61 which is a detecting means for detecting the lowering of the pressure plate, and the rotating plate after the pushing plate 53 is stopped by the stopping means 48 The rotary plate drive means 47 for rotating 52 to the original position (push up completion position) and the push plate for pushing the push plate 53 when the rotary plate 52 is rotated to the original position (push up completion position) by the rotary plate drive means 47 And driving means 49. When the detection signal from the second proximity switch 61 is output, the stopping means 48 stops the extension operation of the pressing cylinder 57. Further, the rotary plate driving means 47 drives the hydraulic motor 56 to rotate the rotary plate 52 forwardly until the rotary plate 52 is positioned at the original position (the push-up completion position). The pressing plate drive means 49 resumes the extension operation of the pressing cylinder 57 in the stopped state. The control device 71 starts control when the loading switch 42 is turned on.

  Next, one cycle of loading operation is started, and during the pushing process by the pushing plate 53, the above-mentioned control, that is, the control to be performed when the rotating plate 52 is lowered below the original position (push-up completion position) It demonstrates based on the flowchart of FIG. 6, and operation | movement explanatory drawing of FIG. 7 (a)-(e).

  First, when the loading switch 42 is turned ON, the control device 71 determines that the loading operation is performed (step S1). When the control device 71 determines that the loading operation is performed, as described above, the rotary plate 52 is rotated in the forward rotation direction from the original position (push-up completion position), and is rotated to the upright position. When the rotary plate 52 is rotated to the upright position, the retraction operation of the push plate 53 is started. FIG. 7A shows a state immediately before the retracting operation of the pressing plate 53 is completed and the rotating plate 52 pushes up the dust. In this state, the rotary plate 52 is further rotated in the forward direction, and when the rotary plate 52 is positioned at the original position (push-up completion position), the first proximity switch 60 detects it and the detection signal is output. , And stop the rotation of the rotating plate 52 (see FIG. 7 (b)). Next, the control device 71 determines whether it is a pressing process by the pressing plate 53 (step S2), and when the control device 71 determines that it is a pressing process, extends the pressing cylinder 57 (step S3). . The determination as to the pressing process is performed by detecting that the rotating plate 52 has lifted the dust to the original position (the push-up completion position). When the emergency stop switch 45 is turned on during the loading operation and the rotary plate 52 is not at the original position (push-up completion position), the pressing cylinder 57 operates even if the pressing switch 44 is turned on. It is configured not to.

  The control device 71 confirms whether or not the rotary plate 52 is positioned at the original position (push-up completion position) after the extension operation of the push cylinder 57 based on the detection signal from the second proximity switch 61 (step S4). As shown in FIG. 7 (c), when it is recognized from the detection signal from the second proximity switch 61 that the rotary plate 52 has fallen from the original position (push-up completion position), the extension operation of the pushing cylinder 57 is stopped (step S5). ). After stopping, the hydraulic motor 56 is driven to rotate the rotary plate 52 in the forward direction while the push cylinder 57 is stopped (the neutral position where both solenoids 67e and 67s of the push cylinder solenoid valve 67 are demagnetized). Step S6). As shown in FIG. 7D, when the rotary plate 52 is positioned at the original position (push-up completion position) (step S7), the driving of the hydraulic motor 56 is stopped (step S8). After the rotary plate 52 is positioned at the original position (the push-up completion position), the extension operation of the push cylinder 57 in the stopped state is resumed (step S3). Then, as shown in FIG. 7E, when the pressing cylinder 57 is positioned at the pressing end position P (step S9), the control device 71 determines that the pressing of the dust has ended, and the extension operation of the pressing cylinder 57 is performed. It stops (step S10), and ends the control. If the rotating plate 52 in the lowered state is not positioned at the original position (the push-up completion position) even after a preset time has elapsed, it is determined that the operation is abnormal and an alarm is issued to the hydraulic motor 56. The driving of the may be stopped. In this embodiment, after the rotary plate 52 is positioned at the original position (push-up complete position), the extension operation of the push cylinder 57 in the stopped state is immediately resumed. However, the rotary plate 52 is at the original position (push-up complete position When it is located, the lamp may be blinked or a buzzer may be sounded in order to notify the operator of the position. Alternatively, the extension operation of the push cylinder 57 in the stopped state may be operated after a predetermined time after leaving the worker.

  As described above, when the pressing plate 53 is in the pushing operation with the rotary plate 52 positioned at the original position (push-up complete position), the rotary plate 52 is lowered below the original position (push-up complete position) When it is detected, the pushing operation of the pushing plate 53 is stopped. When the rotary plate 52 is rotated to the original position (push-up completion position) after the pressing plate 53 is stopped, the dust is moved upward. By moving the pushing plate 53 inward after moving the dust upward in this manner, the dust can be moved along the upper surface of the rotary plate 52 and reliably pushed into the dust storage box 2.

  The present invention can be variously modified without departing from the scope of the invention. In addition, the specific configuration of each part is not limited to the above embodiment.

  In the above embodiment, the proximity switch is used as a detection means for detecting that the rotary plate 52 has fallen below the original position (the push-up completion position). However, other than a magnetic sensor, an ultrasonic sensor, and an optical sensor A number of contact limit switches may be used to detect that the position is achieved by contact with the rotary plate 52.

  Moreover, in the said embodiment, although the pushing board 53 was comprised by the rocking type, you may comprise by a rotation type or a slide type.

  Further, in the above-described embodiment, the rotary plate 52 and the pressing plate 53 are configured to be driven by hydraulic pressure, but may be configured to be driven by air or electricity.

  In the above embodiment, the pushing plate 53 is stopped when the rotary plate 52 is lowered downward and dust can not be pushed into the dust storage box 2 during the one cycle operation of loading with the loading switch 42 turned ON. In the case where the pushing operation is performed quickly after pushing up the lower rotary plate 52, for example, the rotary plate is turned on while the pushing switch 44 is turned on to push the pushing plate 53 alone. In the case where the dust 52 is lowered downward and dust can not be pushed into the dust storage box 2, control may be performed to stop the pushing plate 53 and restart the pushing operation after pushing the rotating plate 52 which has been lowered.

DESCRIPTION OF SYMBOLS 1 ... Garbage collection car, 1a ... Vehicle body, 2 ... Garbage accommodation box, 2e ... Floor part, 3 ... Garbage insertion box, 3H ... Rising part, 3a ... Insertion port, 3c ... Both right and left side wall, 3d ... Opening part, 3e ... Bottom part 39: cover member, 40: top cover, 41: lower cover, 42: loading switch, 43: reverse switch, 44: push switch, 45: emergency stop switch, 47: rotating plate drive means, 48: stop means , 49: pushing plate driving means, 52: rotating plate, 52a: tip portion, 52b: dog, 53: pressing plate, 53a: tip portion, 54, 55: lower / upper supporting shaft, 55a: dog, 56: hydraulic motor , 57: push cylinder, 57e: port, 57e, 57s: both ports, 57s: port, 58, 59: pin, 60: first proximity switch, 61: second proximity switch (detection means), 62a: third proximity switch, 2b fourth proximity switch, 63 tank, 64 pump, 65 pressure control valve, 66 solenoid valve for motor, 66n, 66r, 67e, 67s solenoid, 67 solenoid valve for pushing cylinder, 68, 69 Check valve 70: filter 71: control device 100: rotary plate 101: push plate 102: push cylinder D: dust, P: push end position R: circular locus S: arc locus SB1, SB2 ... Switch box

Claims (2)

A waste container box having a waste storage box, a waste inlet box connected to the rear of the waste storage box, and a loading device for moving the waste loaded from the waste inlet to the waste storage box;
The loading device is located in the dust input box, and rotates to a push-up completion position by rotating around a support shaft extending in the width direction of the dust input box so as to push the dust to the dust storage box side. A dust collection vehicle comprising: a plate; and a pushing plate positioned in the dust input box and moving in the front-rear direction to push dust pushed up by the rotating plate into the dust storage box,
Detection means for detecting that the rotary plate is lowered below the push-up completion position when the pushing plate is in the pushing operation, and stopping the pushing operation of the pushing plate based on the detection signal from the detecting means Stopping means for rotating the rotary plate to the push-up completion position after stopping the pressing plate by the stop means; rotating the rotary plate to the push-up completion position by the rotary plate drive means; A dust collection vehicle comprising: a pressing plate drive means for pressing a pressing plate in a state.   The detection means in the loading cycle operation in which the dust introduced into the dust insertion box is pushed into and accommodated in the dust storage box by performing the rotation operation of the rotary plate and the pushing operation of the pushing plate. When it is detected that the rotary plate is lowered below the push-up completion position, the stopping means stops the pushing operation of the pushing plate, and after the stop, the rotary plate drive means pushes the rotary plate to the push-up completion position 2. The dust collection vehicle according to claim 1, wherein after being rotated, the pushing plate in the stopped state is pushed in by the pushing plate driving means.