JP5422058B2 - Waste collection device and waste collection vehicle equipped with the same - Google Patents

Description

  The present invention relates to a dust collecting device having a dust loading mechanism that compresses dust thrown into a dust container and pushes it into a dust storage box, and a dust collecting vehicle equipped with the dust collecting device.

  Conventionally, a dust input box connected to the rear opening of the dust storage box, a partition plate provided on the front side of the dust input box, and a dust input box, which is input from an input port of the dust input box. 2. Description of the Related Art There is a known dust collection vehicle including a dust loading mechanism that compresses dust and pushes it into the dust container from below the partition plate.

  For example, in Patent Document 1, a dust input box connected to a rear opening of a dust storage box, a rotating body (pushing plate) pivotally attached to a side wall of the input box, and the rotating body are rotated by a rotary drive device. A first power transmission mechanism, a pushing plate that is erected and supported on the rotating body so as to be able to rotate at a position eccentric with respect to the shaft-attached portion of the rotating body, the same direction as the rotating body, and half the number of rotations of the rotating body There is known a garbage collection vehicle that includes a second power transmission mechanism that rotates a push plate relative to a rotating body so as to have a rotational speed, and that rotates and rotates the push plate. In this garbage collection vehicle, the biting prevention means is provided at the lower part of the partition plate (fixed plate) fixed to the front upper part of the dust input box.

JP 55-44476 A

  However, in the garbage collection vehicle of Patent Document 1, an example in which a biting prevention roller and a motor dedicated to driving the roller are provided as a biting prevention unit at the lower part of the partition plate is disclosed. As a dedicated motor is provided, there is a problem that the possibility of failure and the manufacturing cost increase. Patent Document 1 discloses an example in which a shielding plate that is always in contact with the surface of the pushing plate and a spring that biases it are provided as other biting prevention means. In this example, the surface of the pushing plate is formed into a smooth curved surface. Further, the tip edge of the shielding plate is in contact with the pushing plate by the biasing force of the spring. In the case of such a configuration, for example, when a sheet-like dust adhering to moisture sticks to the pressing plate, such as a vinyl sheet, the surface of the pressing plate (especially the leading edge of the pressing plate) and the leading edge of the shielding plate There is a problem that the dust is caught and the dust is dragged to the pushing plate as it is and passes through the shielding plate.

  The present invention has been made in view of such points, and an object of the present invention is to push the dust efficiently into the dust storage box while preventing the dust from flowing back and biting with a simple configuration. It is in.

  In order to achieve the above object, according to the present invention, the pressing plate is rotatably supported so that the revolution speed and the rotation speed are 2: 1, and a plurality of surfaces are opposed to each other in the thickness direction of the pressing plate. A ridge was provided.

  Specifically, in the first aspect of the present invention, a dust input box connected to the opening of the dust storage box, a partition plate provided on the side of the dust input box facing the opening, and the dust input box The present invention is directed to a dust collecting device that is provided with a dust loading mechanism that is provided and compresses dust thrown from the throwing port of the dust throwing box and pushes the dust into the opening side from below the partition plate.

And the dust loading mechanism is
A pair of rotation support members rotatably supported on a pair of opposing side walls of the dust box,
The rotation support member extends between the pair of rotation support members and is supported so as to be rotatable about a rotation shaft provided eccentrically with respect to the rotation center of the rotation support member. And a pushing plate that
On the pair of surfaces facing the thickness direction in the push plate, a plurality of protrusions are arranged at intervals in the axial direction of the rotating shaft, respectively.
At the lower end of the partition plate, a notch through which each protrusion passes is formed.

  According to the above configuration, the pushing plate rotates in half in the same direction while the rotation support member makes one rotation, and the dust thrown in from the throwing-in port of the dust throwing box passes through the lower part of the partition plate to the dust containing box. Pushed in. Subsequently, while the rotation support member makes one rotation, the pushing plate makes a half turn in the same direction, and the dust thrown in from the throwing-in port of the dust throwing box on the opposite side of the pushing plate passes under the partition plate. And pushed into the dust bin. In this way, the pushing plate rotates continuously to perform dust pushing work, so that the switching sound when switching to each process such as compression, pushing, etc., as in the so-called press type dust collecting device and rotating plate type dust collecting device is generated. Does not occur. And by projecting the ridge from each surface of the push plate, the surface of the push plate fills the gap between the lower end of the partition plate and the push plate that is generated when the push plate rotates, and once pushed into the dust box The dust which has been pushed can be brought into a state where it is pushed by the protrusions and floats from the surface of the pushing plate. Further, since the ridge moves in the notch portion of the partition plate, even if the ridge is enlarged, the rotation of the pushing plate is not hindered. Therefore, it is possible to prevent dust from sticking to the surface of the pushing plate and prevent the dust from flowing back into and getting into the dust input space. In addition, even in the case of a sheet-like dust adhering to moisture, the sheet-like dust is suspended between adjacent ridges, and the suspended portion is bitten and moved toward the dust input space. It can be effectively regulated by the wall surface between the adjacent notches of the partition plate. That is, the partition plate can be effectively used as a scraper.

  Further, it is possible to prevent dust from flowing back and biting with a simple configuration without providing a dedicated motor for the biting prevention means as in the prior art.

In the second invention, in the first invention,
The ridge is formed so as to extend in a direction orthogonal to the axial direction of the rotating shaft, and has an outer peripheral edge whose height from the surface of the pushing plate gradually changes when viewed from the axial direction.

  According to said structure, even if a pushing plate rotates, a protrusion does not move to the axial center direction of the rotating shaft of a pushing plate. Thereby, since it is not necessary to provide a mechanism for moving the cutout portion in the axial direction, the structure around the cutout portion of the partition plate can be simplified. The “peripheral edge that changes gently” means an outer peripheral edge that does not have a refracting part or a discontinuous part, or an outer peripheral edge that has a refracting part but is formed at an obtuse angle. To do.

  In addition, since the protrusion has an outer peripheral edge whose height from the surface of the pushing plate changes gently, the passage area of the protruding piece passing through the notch portion of the partition plate is continuously changed as the pushing plate rotates. Can be made. Therefore, the ridges can move the dust attached to the dust storage box side of the partition plate up and down with respect to the partition plate. Thereby, even if there is a non-passing portion of the protrusion at the notch, it is possible to prevent dust from entering the portion and prevent the dust from being caught.

In the third invention, in the first or second invention,
The maximum height of the plurality of protrusions from the axial center of the rotating shaft viewed from the direction connecting the pair of tip edges of the pushing plate is the highest at the protrusion in the center in the axial direction of the rotating shaft. It gets lower as you move away from.

  According to the above configuration, the dust that is biased toward the center of the rotating shaft in the axial center direction and is thrown into the bottom of the dust throwing space is scraped to the both side walls by the ridges, and is evenly pushed into the dust storage box. For this reason, compared with the case where a height change is not given to a some protrusion, the quantity of the dust which can be loaded in a dust storage box can be increased.

In the fourth invention, in the first or second invention,
The maximum height from the axial center of the rotating shaft of the plurality of protrusions viewed from the direction connecting the pair of tip edges of the pushing plate is the lowest at the protrusion in the axial center of the rotating shaft, It gets higher as you move away from.

  According to the above configuration, the dust thrown to the bottom of the dust throwing space portion is biased to the side of the side wall and is scraped to the center in the axial direction of the rotating shaft by the ridges, and is not biased to either side of the side wall, but to the dust containing box. It is pushed evenly. For this reason, compared with the case where a height change is not given to a some protrusion, the quantity of the dust which can be loaded in a dust storage box can be increased.

In the fifth invention, in the first or second invention,
The maximum height from the axial center of the rotating shaft of the plurality of protrusions viewed from the direction connecting the pair of tip edges of the pushing plate is the lowest at the protrusion in the axial center of the rotating shaft, As it gets away from it, it gets higher and lower again.

  According to the above configuration, the dust thrown into the bottom of the dust throwing space portion is scraped to the side walls and the center in the axial direction of the rotating shaft by the ridges, and is pushed evenly into the dust containing box. For this reason, compared with the case where a height change is not given to a some protrusion, the quantity of the dust which can be loaded in a dust storage box can be increased.

In a sixth invention, in the first or second invention,
The maximum height of the plurality of protrusions provided on one surface of the push plate from the axis of the rotary shaft, as viewed from the direction connecting the pair of tip edges of the push plate, is the axis of the rotary shaft. It is the highest at the ridge in the center in the direction, and becomes lower as it goes away from the center.
The maximum height of the plurality of protrusions provided on the other surface of the push plate from the axis of the rotary shaft when viewed from the direction connecting the pair of leading edges of the push plate is the axis of the rotary shaft. It is the lowest at the ridge at the center in the direction, and becomes higher as the distance from the center increases.

  According to the above configuration, the dust thrown into the bottom of the dust throwing space is scraped to both side walls alternately by the ridges on one surface each time the push plate rotates, and rotated by the ridges on the other surface. It is scraped to the center side in the axial direction of the shaft and pushed evenly into the dust container. For this reason, compared with the case where a height change is not given to a some protrusion, the quantity of the dust which can be loaded in a dust storage box can be increased.

In the seventh invention, in the first or second invention,
The maximum height of the plurality of protrusions provided on one surface of the push plate from the axis of the rotary shaft, as viewed from the direction connecting the pair of tip edges of the push plate, is the axis of the rotary shaft. It is the highest at the ridge on one end of the direction, and becomes lower toward the other end.
The maximum height of the plurality of protrusions provided on the other surface of the push plate from the axis of the rotary shaft when viewed from the direction connecting the pair of leading edges of the push plate is the axis of the rotary shaft. It is the highest at the protrusion on the other end side in the direction, and becomes lower toward the one end side.

  According to the above configuration, the dust thrown into the bottom of the dust throwing space portion is scraped to one side wall by the protrusion on one surface each time the pushing plate rotates, and the other protrusion by the protrusion on the other surface. Since it is scraped to the side wall and properly distributed, it is pushed evenly into the dust bin. For this reason, compared with the case where a height change is not given to a some protrusion, the quantity of the dust which can be loaded in a dust storage box can be increased.

In the eighth invention, in the first or second invention,
The plurality of protrusions are one end in the longitudinal direction of one surface and the other in the longitudinal direction of the other surface in a pair of surfaces opposed to the thickness direction of the pressing plate when viewed from the axial direction of the rotating shaft. And the leading edge of the pushing plate is formed so as to be on the charging port side when moving along the wall surface forming the bottom of the dust charging space portion, and each protrusion is formed on each surface. And an inclined surface that is inclined so as to be separated from each surface as it goes from the center in the longitudinal direction toward the one end side or the other end side.

  According to the above configuration, the protrusion is arranged on the inlet side when the leading edge of the pushing plate moves along the wall surface forming the bottom of the dust throwing space portion. While the dust is compressed between the surface located and the inclined surface of the ridge located above the dust, the dust can be efficiently pushed into the dust container box below the partition plate.

In a ninth invention, in any one of the first to eighth inventions,
The partition plate is provided with a shutter member that opens and closes as the ridges pass through the notches, and closes non-passing portions of the ridges at the notches.

  According to the above configuration, when the ridge passes through the notch, the shutter member is opened only at the passage portion of the ridge, and the shutter member is closed after passing the ridge, so that dust flows backward from the notch or the dust enters the notch. Will not bite.

In a tenth aspect, in the ninth aspect,
The shutter member is urged by the urging member toward the lower end of the partition plate along the partition plate.

  According to said structure, when a protrusion passes a notch part, a shutter member is lifted against the urging | biasing force of an urging member, and after passing, a shutter member is pushed by an urging member, and a notch part is closed. Thereby, the movement of the ridge with respect to the notch can be reliably interlocked with the movement of the shutter member, and the non-passing portion of the ridge in the notch can be reliably closed. As a result, it is possible to further prevent the dust from being caught in the notch.

  According to an eleventh aspect of the present invention, there is provided a refuse collection vehicle including the dust collection device according to any one of the first to tenth aspects on a chassis.

  According to the above configuration, when compared with press-type garbage trucks and rotating-plate-type garbage trucks that are common in Japan, the number of actuators is reduced and switching sounds are generated when switching to each process such as compression and pushing. By eliminating the stroke control, weight reduction, simplification of the structure, and noise reduction can be achieved, and further, a dust collection vehicle with less trouble can be obtained by preventing backflow and biting of the dust.

  As described above, according to the present invention, the push plate is supported between the pair of rotation support members so as to be rotatable about the rotation axis extending eccentrically with respect to the rotation center of the rotation support member. The push plate is rotated 1/2 turn in the same direction during one rotation, and a plurality of protrusions are arranged on the pair of surfaces facing the thickness direction of the push plate at intervals in the axial direction of the rotation shaft. By forming the cutout portion through which each protrusion passes at the lower end of the partition plate, the dust can be efficiently pushed into the dust container box while preventing the dust from flowing back and biting with a simple configuration.

It is a perspective view which shows the outline | summary inside the refuse input box concerning embodiment. It is a side view of a garbage truck. It is a perspective view which shows the state which removed the cover of the dust input box. It is a side view which shows the drive part and its periphery of a dust loading mechanism. It is the VV line expanded sectional view of FIG. It is a hydraulic circuit diagram of a dust collector. It is a side view which shows a mode that the dust was thrown into the dust throwing-in box in the standby state of the pushing board. It is a side view which shows a mode that a pressing plate rotates, while the surface of a pressing plate adjoins the lower end of a partition plate. It is a side view which shows a mode that a pressing plate rotates further, while the surface of a pressing plate adjoins the lower end of a partition plate. It is a side view when one end of a pushing board has come to the recessed part of a substantially cardioid curve. It is a side view which shows a mode that dust is further pushed in in a dust storage box from the downward direction of a partition plate, preventing a back flow of dust with a protrusion. FIG. 6 is a view corresponding to FIG. FIG. 8 is a diagram corresponding to FIG. 7 according to Modification 1; FIG. 11 is a diagram corresponding to FIG. 10 according to Modification 1; FIG. 12 is a view corresponding to FIG. 11 according to Modification 1. FIG. 9 is a view corresponding to FIG. It is a front view of the pushing board concerning the modification 2. FIG. It is a side view of the pushing board concerning the modification 2. FIG. 13 is a view corresponding to FIG. 12 when a shutter member according to Modification 2 is provided. FIG. 10 is a view corresponding to FIG. 1 according to Modification 3. FIG. 18 is a diagram corresponding to FIG. 17 according to Modification 3. FIG. 10 is a view corresponding to FIG. 1 according to Modification 4. FIG. 18 is a diagram corresponding to FIG. 17 according to Modification 4. FIG. 10 is a view corresponding to FIG. FIG. 18 is a diagram corresponding to FIG. 17 according to Modification 5. FIG. 10 is a view corresponding to FIG. FIG. 18 is a diagram corresponding to FIG. 17 according to Modification 6. FIG. 10 is a view corresponding to FIG. FIG. 18 is a diagram corresponding to FIG. 17 according to Modification 7. FIG. 10 is a view corresponding to FIG. FIG. 9 is a view corresponding to FIG. 8 according to Modification 7. FIG. 9 is a diagram corresponding to FIG. 9 according to Modification 7. FIG. 10 is a diagram corresponding to FIG. 10 according to Modification 7. FIG. 11 is a diagram corresponding to FIG. 11 according to Modification 7.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

-Structure of garbage truck-
FIG. 2 shows a refuse collection vehicle 1 provided with a dust collection device according to an embodiment of the present invention. A dust storage box 3 is mounted on a chassis 2 of the dust collection vehicle 1. A driver's cab 2 a is provided on the front side of the chassis 2. The rear opening 4 of the dust container 3 is provided with a dust input box 6 that is pivotally supported by an input box support pin 5 above it. Although not shown in detail, the dust input box 6 is a rotating cylinder 9 (shown in FIG. 3 and the like) that is a hydraulic cylinder (or an electric cylinder) provided between the dust storage box 3 and the dust input box 6. Thus, it is configured to be rotatable around the input box support pin 5. The dust container 3 is configured to be tiltable (can be dumped) around a tilting shaft on the rear side of the chassis 2 by extending and contracting a tilting cylinder 12 (shown only in FIG. 6) provided on the chassis 2.

  As shown in FIG. 1, a throwing port 7 is opened at the rear of the dust throwing box 6, and a dust loading mechanism 20 is provided therein. The dust loading mechanism 20 is for compressing and loading the dust 55 put into the dust throwing box 6 through the loading port 7 into the dust containing box 3.

  A partition plate 21 is provided on the side facing the rear opening 4 in the dust container 6 so as to extend from above. The partition plate 21 partitions the dust input space 6d in the dust input box 6 and the inside of the dust container 3 and, for example, a connecting portion that covers the upper half of the rear opening 4 of the dust container 3. 21a and a lower end portion 21b which is continuous with the connecting portion 21a and is inclined rearwardly downward. The dust 55 is compressed by the dust loading mechanism 20 from below and below the lower end 21c of the lower end 21b of the partition plate 21 and is pushed into the rear opening 4 side.

  As shown in FIGS. 3 to 5, the dust loading mechanism 20 includes a pair of circular rotation support members 22 that are rotatably supported by the pair of opposed side walls 6 a of the dust box 6. . Although various configurations are conceivable as a method of rotating the rotation support member 22, for example, in this embodiment, a drive motor 14 made of a hydraulic motor is attached to the inside of the left and right side walls 6a of the dust box 6, and this drive is performed. A speed reduction mechanism 24 is provided between the drive sprocket 31 provided on the output shaft 14 a of the motor 14 and the rotation support member side sprocket 32 provided on the outer surface of the side wall 6 a of the rotation support member 22. Accordingly, the drive motor 14 is configured to rotate the rotation support member 22 at a predetermined deceleration rate.

  A stepped portion 223 including a small diameter portion 221 and a large diameter portion 222 is formed on the circumferential surface of the circular rotation support member 22. In addition, a hole 224 is provided at the center of rotation on the outer surface of the rotation support member 22. A center shaft 22a is fitted into the hole 224 of the rotation support member 22 through a center hole 32a provided in the rotation support member side sprocket 32, and the rotation support member 22 is rotatably supported by the center shaft 22a.

  A disc-shaped flange 22b is integrally formed on the left and right outer sides of the central shaft 22a, and, for example, four screw holes 22c are formed in the flange 22b. Through holes 6b having an inner diameter slightly larger than the outer diameter of the rotation support member 22 are formed in the left and right side walls 6a concentrically with the central axis 22a, respectively, and a stepped portion 223 of the rotation support member 22 is formed in the through hole 6b. The small-diameter portion 221 is accommodated. A T-shaped fixing bracket 23 (indicated by a two-dot chain line in FIG. 4) is fixed around the through hole 6b in the side wall 6a, and a bolt 22e is inserted into a bolt hole 22d of the fixing bracket 23. The central shaft 22a is fixed to the side wall 6a by fastening to the screw hole 22c. Thereby, the rotation support member 22 is directly supported by the side wall 6a so that the small diameter part 221 of the stepped part 223 can be rotated in the through hole 6b. Moreover, the rotation support member 22 is indirectly supported by the side wall 6a via the fixed bracket 23 and the center shaft 22a. Further, the rotation support member 22 is restricted from moving in the left-right direction by the large-diameter portion 222 of the stepped portion 223 and the central shaft 22a.

  The reduction mechanism 24 includes, for example, a reduction sprocket 24a having an outer diameter larger than that of the drive sprocket 31, and the drive sprocket 31 and the reduction sprocket 24a are connected by a first reduction chain 24b. A sprocket 24c (shown only by a broken line in FIG. 4) on the side wall 6a side (right and left inner side) of the speed reduction sprocket 24a and the rotation support member side sprocket 32 are connected by a second speed reduction chain 24d.

  Between the pair of rotation support members 22, one rotation shaft 25 is rotatably supported at a position eccentric from the center shaft 22a. A push plate 26 extending between the left and right side walls 6a is attached to the rotary shaft 25 so as to be integrally rotated. As shown in FIG. 1, the pushing plate 26 has a leaf-like substantially flat plate shape with both ends sharpened with respect to the cross section, and a pair of surfaces 26 a facing in the thickness direction are respectively axial directions of the rotary shaft 25. A plurality of (in the present embodiment, 14) protrusions 33 are arranged at intervals in the vehicle width direction and the left-right direction. In this embodiment, each protrusion 33 has substantially the same shape, and is formed so as to extend in a direction orthogonal to the axial direction of the rotating shaft 25. Further, the protrusion 33 has an outer peripheral edge in which the height from the surface 26a of the pushing plate 26 gradually changes when viewed from the axial direction. Specifically, the protrusion 33 has an arcuate outer peripheral edge. Correspondingly, a notch 34 through which each protrusion 33 passes is formed at the lower end 21 b of the partition plate 21. The cross-sectional shape of the protrusion 33 of the present embodiment is a thin plate shape, but is not limited to this, and the cross-sectional shape may be a triangle or a trapezoid in order to improve the strength. Alternatively, the protrusions 26 may be integrally formed on the surface of the push plate 26 and the protrusions 33 may be formed by the protrusions.

  The pushing plate 26 is made of, for example, a steel plate can product. As shown in FIGS. 3 and 4, the rotation shaft 25 is configured to rotate half in the same direction while the rotation support member 22 makes one rotation by the pushing plate reduction mechanism 27 provided at the end thereof. Has been. Specifically, in the push-in plate speed reduction mechanism 27, a first sprocket 27a that is rotated and integrated with the central shaft 22a, a second sprocket 27b that is rotated and integrated with the rotary shaft 25, and an idler sprocket 28a of the auto tensioner 28 are adjusted for rotation. It is connected by a chain 27c. A lever-shaped auto tensioner main body 28b of the auto tensioner 28 is rotatably supported on the rotation support member side sprocket 32 around the rotation pin 28c, and the tension of the rotation adjusting chain 27c is adjusted by adjusting the rotation amount adjusting bolt 28d. Can be adjusted. The auto tensioner body 28b is fixed to the rotation support member side sprocket 32 by a fixing nut 28e after tension adjustment. The ratio of the pitch circle diameter of the first sprocket 27a and the pitch circle diameter of the second sprocket 27b is 1: 2. In the drawings, each chain and each sprocket are depicted in a simplified manner.

  Accordingly, as shown in FIGS. 7 to 11, the pair of tip edge trajectories of the push-in plate 26 viewed from the axis of the rotation shaft 25 draws a so-called substantially cardioid curve 29. The substantially cardioid curve 29 is a heart-shaped trajectory, and this trajectory is formed so as to form the bottom of the dust throwing space 6d and to follow the arcuate wall 6c as viewed from the left and right side surfaces of the vehicle. Thus, the pushing plate 26 is configured to be surely pushed down the partition plate 21 while compressing the dust 55 thrown into the bottom of the dust throwing space 6d.

  As described above, in the present embodiment, the circular rotation support member 22 fitted into the through hole 6b of the side wall 6a is used as a mechanism for drawing the substantially cardioid curve 29 at the tip edge of the pushing plate 26. . The circular rotation support member 22 is fitted into the through-hole 6b, so that the following problem is solved as compared with a case where a rod-shaped rotation support member is attached between the side wall 6a and the pushing plate 26 (see Patent Document 1). Has been. That is, the rod-shaped rotation support member has a problem that the effective length of the pushing plate in the direction of the rotation axis is short, but the circular rotation support member 22 can increase the effective length. Further, in the rod-shaped rotation support member, there is a problem that a gap is formed between the side wall 6a and the pushing plate 26, and the dust easily flows backward. However, in the circular rotation support member 22, there is a gap between the side wall 6a and the pushing plate 26. Can be made as small as possible. In addition, the rod-shaped rotation support member has a problem of being easily twisted, but the circular rotation support member 22 is less likely to be twisted, and the rotation of the pushing plate 26 can be stabilized.

  Next, the substantially cardioid curve 29 has a recessed portion (recessed portion 29a). In this embodiment, the recessed portion 29a is disposed at a position substantially coincident with the lower end 21c of the lower end portion 21b of the partition plate 21. Yes. Therefore, for example, in the standby state shown in FIG. 7, the longitudinal center of the pushing plate 26 viewed from the axial direction of the rotating shaft 25 is close to the lower end 21 c, and in the state shown in FIG. 10, the leading edge of the pushing plate 26 Is close to the lower end 21c, and the gap with the lower end 21c is eliminated as much as possible during the rotation of the pushing plate 26. In order to do this, a predetermined relational expression must be considered for the position of the lower end 21c of the partition plate 21 and the shape of the push plate 26.

  Next, although not shown in detail, the overall configuration of the garbage truck 1 will be described. The garbage collection vehicle 1 includes a generator driven by a vehicle engine, and is configured such that electric power obtained by the generator or electric power stored in a power storage device is supplied to the electric motor 46. FIG. 6 shows a hydraulic circuit 61 of the hydraulic device 60 of the garbage truck 1. The hydraulic device 60 includes a hydraulic pump 47 that is driven by the electric motor 46. The hydraulic oil in the hydraulic oil tank 62 is configured to be sucked up by the hydraulic pump 47 through the hydraulic pipe 64, distributed to the supply-side hydraulic pipe 61 a, and supplied to the control valve 63. The cylinders 9 and 12 and the drive motor 14 are connected to the control valve 63 via a hydraulic pipe 61b. The control valve 63 includes a plurality of solenoid valves (not shown), and by switching the open / close ports of the solenoid valves, the hydraulic oil discharged from the hydraulic pump 47 rotated by driving the electric motor 46 is supplied to the desired cylinders 9 and 12. Alternatively, it is configured to supply to the drive motor 14. Thus, the switching of the expansion and contraction operations of the cylinders 9 and 12 and the rotation of the drive motor 14 are controlled via the control valve 63, or the operation is stopped. In the garbage collection vehicle 1 of this embodiment, only one drive motor 14 is driven during the dust loading operation, and the dust is loaded like a general press-type dust collection vehicle or a rotary plate-type dust collection vehicle. There is no need for multiple actuators during work.

-How to collect dust with a garbage truck-
First, the refuse collection vehicle 1 moves to the collection place of the dust 55 and opens the insertion port 7.

  Next, as shown in FIG. 7, the center surface 26 a in the longitudinal direction viewed from the axial direction of the push plate 26 is close to the lower end 21 c of the partition plate 21, and one tip edge of the push plate 26 is the back side of the wall surface 6 c. The state located near the end is the standby state. In this standby state, the lower part of the partition plate 21 is blocked, so that the dust 55 pushed into the dust container 3 does not flow back to the dust input box 6 again. In this state, the dust 55 is thrown into the bottom of the dust throwing space 6 d, that is, below the pushing plate 26. At this time, unlike the rotary plate-type dust collecting vehicle in which the position of the rotary shaft is constant, when the dust 55 is thrown in, the rotary shaft 25 of the push plate 26 moves to the dust container 3 side, and the push plate 26 is far from the feed port 7. Therefore, it is possible to throw in the dust 55 having a larger volume than the rotating plate type garbage truck. Moreover, since the bottom of the insertion port 7 is set low by adjusting the trajectory of the pushing plate 26, the dust 55 is easily introduced.

  Next, when the drive motor 14 is rotated, the rotation support member 22 rotates clockwise in FIG. 7, and the pushing plate 26 rotates clockwise at half the speed by the action of the pushing plate reduction mechanism 27. To do. Then, as shown in FIG.8 and FIG.9, the pushing board 26 rotates to the insertion port 7 side. At this time, since the concave portion 29 a of the substantially cardioid curve 29 substantially coincides with the lower end 21 c of the partition plate 21, the dust 55 is difficult to bite between the lower end 21 c and the surface 26 a of the pushing plate 26. In addition, since the protrusion 33 pushes the dust 55 and does not approach the lower end 21c, the dust 55 is prevented from being bitten more effectively.

  When the pushing plate 26 further rotates, as shown in FIGS. 10 and 11, the dust 55 is reliably pushed into the dust container 3 from the rear opening 4 through the lower side 21 c of the partition plate 21 by the protrusion 33. . At this time, the pushing plate 26 and the ridge 33 move so as to approach the wall surface 6c forming the bottom of the dust throwing space portion 6d, so that the function of compressing the dust 55 can be achieved while only rotating the pushing plate 26. Demonstrated.

  Thus, by projecting the protrusion 33 from each surface 26a of the pushing plate 26, when the pushing plate 26 rotates, the surface 26a of the pushing plate 26 forms a gap between the lower end 21c of the partition plate 21 and the pushing plate 26. On the other hand, the dust 55 once pushed into the dust container 3 side can be pushed by the ridge 33 and floated from the surface 26 a of the pushing plate 26. Moreover, since the protrusion 33 moves in the notch 34 of the partition plate 21, even if the protrusion 33 is enlarged, the rotation of the pushing plate 26 is not hindered.

  Next, the pushing plate 26 makes a half turn and returns to the state of FIG. 7, and the operation from FIG. 7 is repeated on the opposite surface 26a side.

  In this embodiment, compared with a general rotary plate type having a push plate for pushing in the dust 55 and a rotary plate for scraping up the dust 55, a single push plate 26 can exert a scraping function and a push function. Therefore, the number of actuators such as hydraulic cylinders can be reduced. By reducing the number of actuators, the weight of the apparatus is reduced, and the load capacity can be increased by the reduction in the weight of the apparatus.

  In addition, in the conventional rotating plate type garbage truck until now, the dust 55 was loaded by two members, the pushing plate and the rotating plate, but in the so-called planetary rotating pushing plate type garbage collecting vehicle 1 of this embodiment, there is one sheet. Since the dust 55 is loaded only by the pushing plate 26, the rotation speed of the pushing plate 26 can be reduced in the same cycle time as compared with the rotating plate type garbage truck. Further, since there is no reversing and lowering operation of the conventional press-type dust collecting vehicle and pushing-in operation of the pushing plate of the rotary plate-type dust collecting vehicle, no waiting time is generated in the loading operation of the dust 55.

  In addition, since this embodiment is only a rotary motion, there is less shock and lower noise compared to the press type and rotary plate type using a cylinder, and since there is no switching of the solenoid valve during loading operation, it becomes low noise, Efficiency is good. In addition, there is an advantage that complicated control such as shockless control and switching control is unnecessary.

  Therefore, the dust 55 can be efficiently pushed into the dust storage box 3 with a simple configuration while preventing the dust 55 from backflowing and biting.

-Modification 1-
FIGS. 12-15 shows the modification 1 of embodiment of this invention, and this modification 1 differs from the said embodiment by the point by which the shutter member 35 is provided in the lower end part 21b of the partition plate 21. FIG. In the following modifications, the same portions as those in FIGS. 1 to 11 are denoted by the same reference numerals, and detailed description thereof is omitted.

  That is, as shown in FIG. 12, each notch 34 of the lower end 21b is covered with a shutter member 35 that opens and closes as each protrusion 33 passes. For example, the shutter member 35 includes a flat shutter body 36 and a pair of rail members 37 on which the shutter body 36 slides up and down. At least the front end (lower end) side of the shutter main body 36 is made of a resin molded product having high wear resistance, for example. Each rail member 37 is attached to at least one of the partition plate 21 and the side wall 6a. The shutter main body 36 may move up and down in the rail member 37 by its own weight, but a compression coil spring 38 or the like as an urging member is provided on the upper side of the rail member 37, and the shutter member 35 is arranged on the lower end 21 c along the partition plate 21. It is desirable to urge toward.

  Specifically, in the standby state shown in FIG. 13, the ridge 33 enters the deepest part of the notch 34. At this time, the shutter member 35 is also pushed up to the highest position, and the compression coil spring 38 is compressed most.

  Then, when the pushing plate 26 rotates 90 degrees, as shown in FIG. 14, one end of the pushing plate 26 moves to the position of the lower end 21c. At this time, the shutter member 35 pushed by the compression coil spring 38 descends to the lower end 21c and covers substantially the entire notch 34. The compression coil spring 38 is in the most extended state.

  Next, as shown in FIG. 15, when the pushing plate 26 further rotates, the shutter member 35 is pushed up again.

  Thus, when the protrusion 33 passes through the notch 34, the shutter member 35 is pushed up and opened, and after passing, the shutter member 35 is securely closed by its own weight and the urging force of the compression coil spring 38. Will not flow backwards.

-Modification 2-
As shown in FIGS. 16 to 18, the maximum height Hmax of the protrusion 33 from the axis of the rotating shaft 25 is highest in the center of the axis of the rotating shaft 25 (in the left-right direction), and is decreased as the distance from the center increases. Also good. As shown in FIG. 17, the maximum height Hmax is the height from the axis of the rotary shaft 25 to the apex of the ridge 33 as seen from the direction connecting the pair of tip edges of the push plate 26 (front of FIG. 17). means. With this configuration, the dust 55 that is biased to the center in the left-right direction and is thrown into the bottom of the dust throwing space 6d is scraped to the side walls 6a by the protrusions 33, so that it is equally pushed into the dust storage box 3. It is. For this reason, compared with the case where the height change is not given to the some protrusion 33, the quantity of the dust 55 which can be loaded in the dust storage box 3 can be increased.

  And as shown in FIG. 19, you may provide the shutter member 135 similarly to the said modification 1. As shown in FIG. For example, the shutter member 135 divided | segmented corresponding to each protrusion 33 may be provided, and each shutter member 135 may be comprised so that an up-down slide is possible individually. In this case, the adjacent shutter members 135 are connected to each other by a connecting rail portion (not shown) and are connected to each other so as to be capable of relative sliding movement. Further, if a compression coil spring 38 is provided on each rail member 37 and the upper end of each shutter member 135 is pressed by a belt-like body (not shown) such as a belt, all the slide members 135 have different slide amounts. The shutter member 135 is urged downward.

-Modification 3-
As shown in FIGS. 20 and 21, the maximum height Hmax from the axis of the rotation shaft 25 of the ridge 33 viewed from the direction connecting the pair of tip edges of the push plate 26 (front of FIG. 21) is determined in the left-right direction. It may be the lowest at the center and higher as the distance from the center increases. With this configuration, the dust 55 that is biased toward the side wall 6a and is thrown into the bottom of the dust throwing space 6d is scraped to the center in the left-right direction by the protrusion 33, so that the left-right balance is maintained, and the dust storage box 3 evenly. For this reason, the quantity of the dust 55 which can be loaded in the dust storage box 3 increases.

  In this modified example, the shutter member 135 may be provided as in modified example 2 above.

-Modification 4-
As shown in FIGS. 22 and 23, the maximum height Hmax from the axis of the rotating shaft 25 of the ridge 33 viewed from the direction connecting the pair of tip edges of the pushing plate 26 (front of FIG. 23) is the center in the left-right direction. It may be the lowest at a certain point, become higher as it goes away from the center, and lower again. If comprised in this way, since the dust 55 thrown into the bottom of the dust throwing-in space part 6d will be scraped off into the both-side wall 6a side and the left-right center by the protrusion 33, it will be equally pushed into the dust storage box 3. For this reason, compared with the case where the height change is not given to the some protrusion 33, the quantity of the dust 55 which can be loaded in the dust storage box 3 can be increased.

  In this modified example, the shutter member 135 may be provided as in modified example 2 above.

-Modification 5-
As shown in FIGS. 24 and 25, the rotating shaft 25 of the protrusion 33 provided on one surface 26 a of the pushing plate 26 is viewed from the direction connecting the pair of leading edges of the pushing plate 26 (front side in FIG. 25). The maximum height Hmax from the shaft center is the highest at the center in the left-right direction, and is lowered as it goes away from the center, and the maximum height Hmax from the shaft center of the rotating shaft 25 of the protrusion 33 provided on the other surface 26a is the center in the left-right direction. It may be the lowest and the higher it is from the center. If comprised in this way, the dust 55 thrown into the bottom of the dust throwing-in space part 6d will be scraped off to the both-side wall 6a side by the protrusion 33 of one side, whenever the pushing plate 26 rotates, and then the other side. The surface protrusions 33 scrape up the left and right central sides, and the sorting is repeated in this order, so that the dust 55 is pushed evenly into the dust container 3. For this reason, compared with the case where the height change is not given to the some protrusion 33, the quantity of the dust 55 which can be loaded in the dust storage box 3 can be increased.

  In this modified example, the shutter member 135 may be provided as in modified example 2 above.

-Modification 6
As shown in FIGS. 26 and 27, the rotating shaft 25 of the protrusion 33 provided on the one surface 26 a of the pushing plate 26 is viewed from the direction connecting the pair of leading edges of the pushing plate 26 (front side in FIG. 27). The maximum height Hmax from the shaft center is the highest at one end in the left-right direction and is lowered toward the other end, and the maximum height from the shaft center of the rotating shaft 25 of the ridge 33 provided on the other surface 26a of the pushing plate 26. The height Hmax may be highest at the other end in the left-right direction, and may decrease as it goes toward one end.

  If comprised in this way, the dust 55 thrown into the bottom of the dust throwing-in space part 6d will be scraped up to the one side wall 6a side by the protrusion 33 of one side, whenever the pushing board 26 rotates, and the other side Since the ridges 33 are scraped to the other side wall 6a, they are evenly pushed into the trash storage box 3. For this reason, compared with the case where the height change is not given to the some protrusion 33, the quantity of the dust 55 which can be loaded in the dust storage box 3 can be increased.

  In this modified example, the shutter member 135 may be provided as in modified example 2 above.

-Modification 7-
As shown in FIGS. 28 and 29, when viewed from the axial direction of the rotating shaft 25 (the left-right direction in FIG. 29), the plurality of protrusions 33 on the pair of surfaces 26 a facing the thickness direction of the pushing plate 26, You may provide in the longitudinal direction one end side of the one surface 26a, and the longitudinal direction other end side of the other surface 26a. Each of the protrusions 33 is formed so that the leading edge of the pushing plate 26 is on the inlet 7 side when it moves along the wall surface 6c that forms the bottom of the dust inlet space 6d. And each protrusion 33 has the inclined surface 33a which inclines so that it may leave | separate from each said surface 26a as it goes to the one end side or the other end side from the longitudinal direction center of each surface 26a.

  In other words, for example, when the pushing plate 26 in the vertical state shown in FIG. 33 is viewed from the axial direction of the rotary shaft 25, the upper end side of the surface 26a on the vehicle front side and the lower end of the surface 26a on the vehicle rear side of the pair of surfaces 26a. On the side, protrusions 33 having the same shape are arranged at intervals in the axial direction. Each protrusion 33 is an inclined surface that is inclined so as to be separated from each surface 26a from the center in the vertical direction of the surface 26a on the front side of the vehicle toward the upper end side or from the center in the vertical direction of the surface 26a on the vehicle rear side toward the lower end side. 33a.

  If comprised in this way, as shown in FIG. 32, pressing down the dust 55 with the surface 26a on the lower side and the inclined surface 33a of the upper protrusion 33 continuing to the surface 26a, as shown in FIG. The dust is compressed, and the dust 55 is pushed into the dust container 3 as shown in FIG. Thus, the protrusion 33 of this modification can exhibit the compression effect of the dust 55.

  In this modified example, the shutter member 135 may be provided as in modified example 2 above.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the above-described embodiment, the example in which the dust collecting device is provided in the electric dust collecting vehicle 1 is shown. However, the dust collecting device may be fixedly installed on the floor of a building or a factory. Specifically, the dust collecting device may be placed not on the body frame 2b but on a frame placed on the floor.

  In the above embodiment, the mechanism for driving the pushing plate 26 is a chain mechanism. However, the gear may be driven directly.

  In the above embodiment, an example of the dust collection vehicle 1 that drives the hydraulic pump using an electric motor is shown. However, the dust collection device is not an electric motor, but uses the driving force of the engine via a power take-out device (PTO). And may be transmitted to a hydraulic pump. Regarding the method for driving the rotation support member 22, in the present embodiment, the driving force of the hydraulic drive motor 14 is decelerated, but the driving force of the electric motor 46 may be used. The power source of these drive motor 14 and electric motor 46 is not particularly limited.

  Moreover, in the said embodiment, although the drive motor 14 was attached to the inner side of one side wall on either side, you may provide a drive motor in both the side walls on either side. Further, a planetary gear reducer unit may be interposed between the output shaft 14 a of the drive motor 14 and the drive sprocket 31.

  Instead of providing the tilt cylinder 12 and dumping the dust storage box 3 as in the above embodiment, the dust storage box 3 may be provided with a discharge device for discharging the dust in the dust storage box 3. Specifically, a discharge plate may be slidable in the front-rear direction in the dust storage box 3, and may be slid back and forth in the dust storage box 3 by an expansion / contraction operation of the discharge cylinder.

  In the said embodiment, although the rotation support member is comprised by the circle, you may comprise by a rod-shaped and plate-shaped link. In short, any member may be used as long as it rotates around the central axis 22a and supports the rotary shaft 25 at a position eccentric from the central axis 22a.

  In the above embodiment, the ridges 33 are arranged uniformly in the axial direction of the rotary shaft 25, but are arranged densely in the center, and the side wall 6a side is arranged at intervals, and arranged unevenly. May be.

  In the above embodiment, the protrusion 33 has an arcuate outer periphery as viewed from the axial direction of the rotary shaft 25, but may have a saw-blade outer periphery.

  In the above embodiment, the protrusion 33 is formed so as to extend in a direction orthogonal to the axial direction of the rotating shaft 25. However, the protrusion is provided so as to meander in a direction orthogonal to the axial direction, and correspondingly The partition plate may be provided with a mechanism for moving the notch in the axial direction of the rotation shaft.

  In the above-described embodiment, the pushing plate 26 has a leaf-like substantially flat plate shape with both ends sharpened in cross section. Instead, the pushing plate has a substantially S shape when the pushing plate is viewed from the direction of the rotation axis. It may be formed. In this case, the lower end of the partition plate is provided with a swing plate with a notch that rotates around an axis parallel to the rotational axis of the push plate and has a rotation roller at the lower end. The roller may be pressed and rolled on the pressing plate.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

  As described above, the present invention relates to a dust collecting apparatus for mounting having a dust loading mechanism that compresses the dust thrown from the inlet of the dust throwing box and pushes it into the dust containing box, and this dust collecting apparatus. This is useful for garbage trucks on the chassis.

DESCRIPTION OF SYMBOLS 1 Dust collection truck 3 Dust storage box 4 Back opening 6 Dust input box 6a Side wall 6c Wall surface 6d Dust input space 7 Input port 20 Dust loading mechanism 21 Partition plate 22 Rotation support member 22a Central axis (rotation center)
DESCRIPTION OF SYMBOLS 25 Rotating shaft 26 Pushing plate 26a Surface 29 Almost cardioid curve 33 Projection 34 Notch 35 Shutter member 36 Shutter main body 37 Rail member 38 Compression coil spring 55 Dust basket 135 Shutter member

Claims (11)

A dust input box connected to the opening of the dust storage box, a partition plate provided on the side of the dust input box facing the opening, and a dust input box provided in the dust input box, from the input of the dust input box A dust collecting device comprising a dust loading mechanism that compresses the charged dust and pushes it into the opening side from below the partition plate,
The above dust loading mechanism is
A pair of rotation support members rotatably supported on a pair of opposing side walls of the dust box,
The rotation support member extends between the pair of rotation support members and is supported so as to be rotatable about a rotation shaft provided eccentrically with respect to the rotation center of the rotation support member. And a pushing plate that
On the pair of surfaces facing the thickness direction in the push plate, a plurality of protrusions are arranged at intervals in the axial direction of the rotating shaft, respectively.
A dust collecting device, wherein a notch through which each protrusion passes is formed at a lower end of the partition plate. In the refuse collection device according to claim 1,
The protrusion is formed so as to extend in a direction orthogonal to the axial direction of the rotating shaft, and has an outer peripheral edge whose height from the surface of the pushing plate changes gradually when viewed from the axial direction. Characteristic dust collecting device. In the refuse collection device according to claim 1 or 2,
The maximum height of the plurality of protrusions from the axial center of the rotating shaft viewed from the direction connecting the pair of tip edges of the pushing plate is the highest at the protrusion in the center in the axial direction of the rotating shaft. A dust collecting device characterized by being lowered as it goes away. In the refuse collection device according to claim 1 or 2,
The maximum height from the axial center of the rotating shaft of the plurality of protrusions viewed from the direction connecting the pair of tip edges of the pushing plate is the lowest at the protrusion in the axial center of the rotating shaft, A dust collecting device characterized in that it becomes higher as it gets farther away. In the refuse collection device according to claim 1 or 2,
The maximum height from the axial center of the rotating shaft of the plurality of protrusions viewed from the direction connecting the pair of tip edges of the pushing plate is the lowest at the protrusion in the axial center of the rotating shaft, A dust collecting device characterized in that it becomes higher and lower again as it gets away from. In the refuse collection device according to claim 1 or 2,
The maximum height of the plurality of protrusions provided on one surface of the push plate from the axis of the rotary shaft, as viewed from the direction connecting the pair of tip edges of the push plate, is the axis of the rotary shaft. It is the highest at the ridge in the center in the direction, and becomes lower as it goes away from the center.
The maximum height of the plurality of protrusions provided on the other surface of the push plate from the axis of the rotary shaft when viewed from the direction connecting the pair of leading edges of the push plate is the axis of the rotary shaft. A dust collecting device characterized in that it is lowest at the ridge at the center in the direction and becomes higher as it goes away from the center. In the refuse collection device according to claim 1 or 2,
The maximum height of the plurality of protrusions provided on one surface of the push plate from the axis of the rotary shaft, as viewed from the direction connecting the pair of tip edges of the push plate, is the axis of the rotary shaft. It is the highest at the ridge on one end of the direction, and becomes lower toward the other end.
The maximum height of the plurality of protrusions provided on the other surface of the push plate from the axis of the rotary shaft when viewed from the direction connecting the pair of leading edges of the push plate is the axis of the rotary shaft. A dust collecting device characterized in that it is highest at the protrusion on the other end side in the direction and becomes lower toward the one end side. In the refuse collection device according to claim 1 or 2,
The plurality of protrusions are one end in the longitudinal direction of one surface and the other in the longitudinal direction of the other surface in a pair of surfaces opposed to the thickness direction of the pressing plate when viewed from the axial direction of the rotating shaft. And the leading edge of the pushing plate is formed so as to be on the charging port side when moving along the wall surface forming the bottom of the dust charging space portion, and each protrusion is formed on each surface. A dust collecting apparatus, comprising: an inclined surface that is inclined so as to be separated from each surface from the center in the longitudinal direction toward the one end side or the other end side. In the refuse collection device according to any one of claims 1 to 8,
The partition plate is attached with a shutter member that opens and closes as the ridges pass through the notches, and closes the non-passing portions of the ridges at the notches. A dust collector. The refuse collection device according to claim 9,
The dust collecting apparatus, wherein the shutter member is urged toward the lower end of the partition plate along the partition plate by an urging member.   A refuse collection vehicle comprising the dust collection device according to any one of claims 1 to 10 on a chassis.

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