JP6286187B2 - Garbage truck - Google Patents

Description

  The present invention relates to a garbage truck.

  For example, a garbage truck described in Patent Document 1 below has been proposed. The dust collection vehicle of Patent Document 1 includes a dust storage box for storing dust, a dust input box (also referred to as a “tail gate”) into which dust is input, and a dust storage box for storing the dust input into the dust input box. And an opening / closing cylinder for rotating the dust throwing box so as to open and close the opening at the rear part of the dust containing box.

  In the refuse collection vehicle of Patent Document 1, the loading device includes a deflector supported by a pivot, and the deflector is provided with a scraping panel, a cylinder for rotating the scraping panel, and a scraping panel for rotating. A push-in cylinder is attached. Further, a swing cylinder (dump cylinder) for rotating (opening / closing) the dust input box is attached to a pivot different from the pivot. The two pivots are attached to the rear frame attached to the upper surface of the rear part of the dust container via separate brackets.

Japanese Utility Model Publication No. 63-26330

  In the refuse collection vehicle of Patent Document 1, the deflector and the swing cylinder are attached to different pivots via different brackets on a rear frame attached to the upper surface of the rear part of the dust storage box. Moreover, since the rear frame for attaching these pivots is also provided, the whole is increased in size and weight.

  Therefore, an object of the present invention is to provide a garbage truck that can suppress an increase in size and weight.

The present invention includes a dust storage box for storing dust, a dust input box for storing dust, a loading device for loading the dust input to the dust storage box into the dust storage box, and a rear part of the dust storage box A garbage collector equipped with an open / close cylinder for rotating the dust input box so as to open and close the opening, wherein the dust input box has side walls on both sides in the width direction, and the side wall is along the width direction of the dust input box. The main shaft is supported between the side walls so that the end of the main shaft protrudes from the inside of the dust container box to the outside, and the loading device has a push plate for loading dust into the dust container box and a push plate. And a lift arm that is rotatably supported via a shaft, and an opening / closing cylinder and a lift arm are rotatably supported on the main shaft. In addition, the loading device includes a lift cylinder for raising and lowering the lift arm, and the dust input box is rotatable around a support shaft disposed in the dust storage box, and one end of the lift cylinder rotates around the support shaft. A lift arm is rotatably supported at the other end of the lift cylinder.

  In the above configuration, both the loading device and the dust box are supported by the dual-purpose main shaft, so that an increase in size and weight is suppressed, and the end of the main shaft protrudes from the side wall. It is supported in a stable form.

  In the garbage collection vehicle of the present invention, a configuration in which the dust container has a rear wall at the upper part thereof, a lower part of the rear wall serves as a dust inlet, and the main shaft is disposed on the front side of the rear wall can be adopted.

  Since the dual-purpose main shaft that supports both the loading device and the dust input box is on the front side of the rear wall as in the above configuration, the loading device can be disposed on the front side. Become wider.

  In the refuse collection vehicle of the present invention, the open / close cylinder is disposed outside the dust input box by being supported by a protruding portion of the main shaft that protrudes outward from the side wall of the dust input box. And the structure arrange | positioned inside a dust bin can be employ | adopted by being supported by the part arrange | positioned inside the side wall among main shafts.

  As in the above configuration, the loading device is arranged inside the dust box, and the opening / closing cylinder is arranged outside the dust box, so that even if the loading device loads dust, the opening / closing cylinder is It can suppress being polluted by.

  In the refuse collection vehicle of the present invention, the dust box has side walls on both sides in the width direction, and the main shaft along the width direction of the dust box has a side wall between the side walls so that the end protrudes from the inside of the dust box to the outside. Since the opening / closing cylinder and loading device are attached to the main shaft, both the loading device and the dust box are supported by the dual-purpose main shaft. Can be suppressed.

It is a side view of the garbage truck in one embodiment of the present invention. It is the same top view. It is the same rear view. It is a side view of the loading device. It is the same top view (AA sectional view taken on the line in FIG. 4). (A)-(h) is operation | movement explanatory drawing of a loading apparatus.

  Hereinafter, an embodiment of a garbage truck according to the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, the garbage collection vehicle 1 of the present embodiment includes a dust container 3 for storing dust in a vehicle body 2 and a rear side of the dust container 3, and the dust is the dust container 3. And a dust input box 4 which is once input before being accommodated in the container. The garbage truck 1 includes a cab 5 on the front side of the dust container 3. In addition, the garbage collection vehicle 1 includes a loading device 6 for loading the dust thrown into the dust throwing box 4 into the dust storage box 3. The garbage storage box 3 has a general configuration and has a box shape in which a rear opening 7 is formed at the rear.

  The dust input box 4 includes a top wall 11 at the upper rear end thereof, and the rear part of the top wall 11 constitutes a part of the rear wall, and the lower side of the top wall 11 has a dust input port 12 through which dust can be input. Has been. A manual shutter 13 is attached to the dust inlet 12. The shutter 13 also constitutes a part of the rear wall, and the shutter 13 is opened and closed along guide rails provided on the left and right side plates (side walls) 14 and 15.

  When the shutter 13 is opened, dust can be thrown into the dust throwing box 4 from the dust throwing opening 12. The dust box 4 includes the side plates 14 and 15 on the left and right sides, and a bottom plate 17. The front portion of the dust box 4 is a front opening 18. A loading switch 9 and an emergency stop switch 10 are provided below the rear frame wall 8.

  The refuse throwing box 4 is configured to be switchable between a dust throwing attitude Y and a throwing release attitude Z. The dust throwing posture Y is a posture in which the dust throwing box 4 is positioned at a predetermined position behind the dust storage box 3. The throwing release posture Z is a posture in which the dust throwing box 4 is tilted upward from the dust throwing posture Y and positioned at a predetermined position.

  The predetermined position of the dust throwing posture Y is a position where the operator throws dust into the dust throwing opening 12. The predetermined position of the charging release posture Z is a position where the dust container 3 is tilted so that the rear part thereof is downward and the dust housed in the dust container 3 can be discarded from the rear opening 7.

  In the dust throwing posture Y, the rear opening 7 of the dust storage box 3 and the front opening 18 of the dust throwing box 4 are communicated with each other. The garbage collection vehicle 1 includes a general tilting cylinder (not shown) for tilting the dust container 3, and the tilting cylinder is disposed between the vehicle body 2 and the dust container 3. Yes.

  The dust box 4 can be switched between a dust charging position Y and a charging release position Z by rotating around the support shaft 19. The support shaft 19 is a shaft body along the width direction that is disposed in an overlapping (overlapping in the width direction) portion of the rear end upper part of the dust container 3 and the front end upper part of the dust throwing box 4. The support shafts 19 are spaced apart in the width direction of the dust container 3 (dust input box 4) and are arranged on both sides in the width direction.

  The side plates 14 and 15 of the dust box 4 are flat plates along the vertical direction. The bottom plate 17 of the dust box 4 is integrally provided with a rear portion 17A and a front portion 17B. The rear portion 17A is inclined downward toward the front, and the front portion 17B is inclined downward toward the rear. A substantially central portion in the front-rear direction of the bottom plate 17 is an inclined branch point 20 that is the lowest. The rear portion 17A is a flat plate inclined downward toward the front, and the front portion 17B is a curved plate inclined downward toward the rear so as to be slightly convex downward.

  In addition, the garbage collection vehicle 1 includes a pair of widthwise swing cylinders 21 (which are hydraulic cylinders corresponding to opening and closing cylinders) 21 for rotating the dust collection box 4 around the support shaft 19. In the present embodiment, the swing cylinder 21, the dust box 4 and the loading device 6 are supported (attached) to the first shaft 22. The first shaft body 22 corresponds to a main shaft, and includes a pipe-shaped first shaft body 22A, a bracket 22b, which will be described later, fixed in the longitudinal direction (width direction) on the first shaft body 22A, and a holding body. 22c.

  The swing cylinder 21 has a base portion of a main body rotatably connected to a bracket 3a disposed on the upper rear end of the dust container 3 and below the support shaft 19 via a pivot 3b. The tip of the rod 21A of the swing cylinder 21 is rotatably connected to the ends (protrusions) 22a and 22a of the first shaft body 22A via the pivot 23. That is, the swing cylinder 21 is not located inside the dust throwing box 4 but is arranged outside the side plates 14 and 15 of the dust throwing box 4.

  As shown in FIGS. 2 and 3, in the dust throwing box 4, the first shaft body 22 </ b> A has its end portions 22 a and 22 a extending along the side plates 14 and 15 in the width direction of the dust throwing box 4. The side plates 14 and 15 are supported so as to protrude from the inside to the outside. Specifically, upper regions of the side plates 14 and 15 corresponding to portions through which the first shaft body 22A is penetrated are cut out, and the end portions 22a and 22a of the first shaft body 22A are formed in the notches 14a and 15a (FIG. 3, FIG. The first shaft body 22A is supported on the side plates 14 and 15 by being lowered from above so as to be engaged with the bottom surface of FIG. The first shaft body 22A is disposed on the rear and upper portions of the side plates 14 and 15. Specifically, the first shaft body 22 </ b> A is disposed on the front side of the shutter 13 of the garbage throwing box 4 and is disposed below the support shaft 19.

  The bracket 22 b is disposed at the end portions 22 a and 22 a of the first shaft 22 and includes a protruding portion for connecting the tip end portion of the rod 21 </ b> A of the swing cylinder 21. A pivot 23 is disposed on the protruding portion. That is, the tip of the rod 21A of the swing cylinder 21 is connected to the pivot 23 so as to be displaced downward with respect to the first shaft 22A.

  Next, the loading device 6 will be described. As shown in FIGS. 4 and 5, the loading device 6 is configured to lift and lower the lift arm 24 (corresponding to an arm member) 24, a plate-like push plate (corresponding to a push member) 25, and the lift arm 24. The lift cylinder (which is a hydraulic cylinder corresponding to the arm member cylinder) 26 and a push cylinder 27 which is a hydraulic cylinder for rotating the push plate 25 are provided. As described above, such a loading device 6 is attached to the first shaft 22. The loading device 6 is disposed inside the garbage throwing box 4.

  As shown in FIG. 4, the lift arm 24 is formed in a parallelogram shape that is flat when viewed from the side. The lift arms 24 are provided as a pair so as to face each other in the width direction. The lift arms 24 are reinforced by being connected by a pair of front and rear twist-preventing casings 29 and 29 at a midway portion in the longitudinal direction.

  As shown in FIG. 5, the holding body 22 c is formed in a plate shape, and a plurality (in this case, three) of the holding bodies 22 c are arranged near the side plates 14 and 15. One end side (rear end side) of the lift arm 24 is attached to the holding body 22c. That is, the second shaft 31 is passed between the holding bodies 22 c, and one end side of the lift arm 24 is supported by the second shaft 31 so as to be rotatable in a vertical plane. The lift arm 24 extends forward from the second shaft 31. Further, a base end portion of the main body of the push cylinder 27 for rotating the push plate 25 is supported on the second shaft 31 so as to be rotatable in a vertical plane.

  The lift arm 24 is indirectly suspended from the support shaft 19 via the lift cylinder 26, and is directly suspended from the second shaft 31, and the other end side (front end side) of the lift arm 24 is A third axis (corresponding to the horizontal axis) 32 along the width direction is attached. A base end portion of the push plate 25 is rotatably connected to the third shaft 32. That is, the push plate 25 is rotatably supported near the front portion of the lift arm 24 (in this case, the front end portion). The push plate 25 is set to have a smaller width than the front opening 18 of the dust box 4.

  In the push plate 25, a fourth shaft 33 is provided in the middle in the longitudinal direction in the direction orthogonal to the width direction. The fourth shaft 33 is disposed closer to the third shaft 32 in the longitudinal direction of the push plate 25. One side (the dust container 3 side) of the push plate 25 is a dust pressing surface 34, and the fourth shaft 33 is located behind the dust pressing surface 34 (so as not to protrude from the dust pressing surface 34). Is arranged. The tip of the rod 27 </ b> A of the push cylinder 27 is rotatably connected to the fourth shaft 33. That is, the tip of the push cylinder 27 is attached to the push plate 25 closer to the third shaft 32. In other words, the distal end portion of the push cylinder 27 is attached to the third shaft 32 side with respect to the intermediate portion in the longitudinal direction of the push plate 25. The longitudinal length of the push plate 25 and the longitudinal length of the lift arm 24 are set to be approximately the same.

  A base end portion of the main body of the lift cylinder 26 is rotatably connected to the support shaft 19. A fifth shaft 35 along the width direction is provided on the lower side of the lift arm 24 in the substantially central portion in the longitudinal direction. The tip end of the rod 26 </ b> A of the lift cylinder 26 is rotatably connected to the fifth shaft 35. The fifth shaft 35 is disposed below the rear housing 29 (see FIG. 4).

  Further, with the configuration in which the swing cylinder 21, the dust box 4 and the loading device 6 are attached to the first shaft 22, a stiffener 28 is provided on the outer surface of the side plates 14 and 15 (FIG. 1). FIG. 2). The stiffener 28 includes a stiffener 28A along a straight line connecting the support shaft 19 and the first shaft body 22A, and a stiffener 28B along a straight line connecting the lower edge of the rear opening 7 and the first shaft body 22A. Thus, the stiffener 28 supports the load acting on the side plates 14 and 15 from the end portions 22a and 22a of the first shaft body 22A together with the side plates 14 and 15.

  In the refuse collection vehicle 1 of the present embodiment, the dust input box 4 and the loading device 6 are attached to the first shaft 22. For this reason, compared with the case where the refuse input box 4 and the loading apparatus 6 are each supported by another spindle, the weight reduction of the refuse collection vehicle 1 is realizable.

  In addition, the end portions 22a and 22a of the first shaft 22 (first shaft body 22A), which is used for both the attachment of the dust container 4 and the loading device 6, penetrate the side plates 14 and 15 and are supported by the side plates 14 and 15. ing. For this reason, the side plates 14 and 15 and the support shaft are compared with the configuration in which the dust container 4 and the loading device 6 are supported by separate support shafts and the end portions of the support shafts are supported by the inner surfaces of the side plates 14 and 15. Also, the reinforcing structure of the end portion can be a simple configuration.

  Here, an example of operation | movement of the loading apparatus 6 is demonstrated based on Fig.6 (a)-(h). The loading device 6 assumes the state shown in FIG. 6A as a reference posture (also a push-in completion posture) X. The reference posture X is a state in which the dust housed in the dust container 3 is rotated around the third shaft 32 so that the dust pressing surface 34 of the push plate 25 presses the dust upward and forward. In the reference posture X, the dust pressing surface 34 enters the dust container 3 from the rear opening 7 of the dust container 3. For this reason, in the reference posture X, the push cylinder 27 is in the most extended state.

  In the reference posture X of the loading device 6, the dust pressing surface 34 of the push plate 25 is forward so that it enters the dust container 3 from the rear opening 7 of the dust container 3, and the lift arm 24 is at the top. And since the front end side is in the uppermost position, in the loading device 6, the dust throwing space K inside the dust throwing box 4 which is an area into which dust can be thrown is secured as large as possible.

  In the garbage collection vehicle 1, in order to throw dust into the dust throwing box 4, the shutter 13 is opened to open the dust throwing opening 12, and the dust throwing box 4 is set to the dust throwing posture Y (see FIG. 1). 6 starts operation when a loading button (not shown) of the loading switch 9 is pressed. That is, only the push cylinder 27 contracts from the reference posture X of the loading device 6. When the push cylinder 27 contracts, the push plate 25 rotates backward about the third shaft 32 in the direction of retreating from the rear opening 7 of the dust container 3 (see FIG. 6B).

  Next, only the lift cylinder 26 is controlled to contract. Then, the lift arm 24 rotates about the second shaft 31 upward. At this time, the push cylinder 27 is not driven, and the angle between the lift arm 24 and the push plate 25 is not changed (see FIG. 6C). Therefore, the push plate 25 is positioned forward enough to enter the dust container 3 again, and the lift arm 24 is pivoted upward, so that the dust throwing space inside the dust throwing box 4 is K is wide open. Therefore, as much dust can be thrown into the dust throwing box 4 as much.

  Next, only the push cylinder 27 is controlled to contract. Then, the push plate 25 rotates rearward around the third shaft 32 (see FIG. 6D). Subsequently, only the lift cylinder 26 is controlled to extend. Then, the lift arm 24 rotates downward about the second shaft 31. In this case, since the push cylinder 27 is not driven, the angle between the lift arm 24 and the push plate 25 is not changed (see FIG. 6E).

  Next, only the push cylinder 27 is controlled to extend. Then, the push plate 25 is rotated forward around the third shaft 32. In this case, the extension amount of the lift cylinder 26, the inclination angle of the lift arm 24 according to the extension amount, the push plate 25 of the push plate 25 so that the tip of the push plate 25 does not come into contact with the bottom plate 17 of the dust box 4. It is necessary to set the length in the longitudinal direction (see FIG. 6F).

  Next, only the lift cylinder 26 is controlled to contract. Then, the lift arm 24 is rotated upward around the second shaft 31, and the tip end portion of the push plate 25 is inclined upward toward the front (downwardly inclined toward the rear). ) The dust that moves forward along the surface of the front portion 17B and is thrown into the dust throwing space K is loaded into the dust receiving box 3 from the rear opening 7 of the dust receiving box 3 ( (Refer FIG.6 (g)).

  In order to push the dust into the dust container 3, only the push cylinder 27 is controlled to extend. Then, the push plate 25 is rotated upward around the fourth shaft 33, and the push plate 25 is pressed in a state where the dust is pushed up (see FIG. 6 (h)).

  The operation of the loading device 6 described above is a one-cycle operation. When the loading button of the loading switch 9 is pressed, the loading device 6 continuously performs the one-cycle operation. When the stop button of the loading switch 9 is pressed, the loading device 6 is controlled to stop in the state shown in FIG. 6 (h), that is, in the reference posture X, and hold the dust up. The

  As described above, the lift arm 24 and the push plate 25 of the present embodiment are pivotally attached via the third shaft 32, but are aligned along the one-cycle loading operation. Rather, it operates with a relative angle that is constantly changing. For this reason, the entire loading device 6 has a compact configuration. Further, the lift arm 24 of the loading device 6 does not take a vertical posture during the loading operation of one cycle. Also in this respect, the entire loading device 6 has a compact configuration.

  When the dust collection vehicle 1 completes the dust loading operation, the dust collection vehicle 1 travels to a predetermined place (dust disposal site) and extends the swing cylinder 21 to allow the dust input box 4 to be supported by the support shaft 19. The throwing cylinder is rotated upward to enter the release release posture Z, and the tilting cylinder is extended to tilt the dust container 3 so that the rear side is downward. Then, since the dust input box 4 is in the input release posture Z, the rear opening 7 of the dust storage box 3 is opened, there is nothing to disturb the discharge of the dust, and the dust in the dust storage box 3 is discharged.

  In this embodiment, the lift arm 24 extends forward from the first shaft 22, and the push plate 25 is supported near the front portion of the lift arm 24. According to this configuration, the push plate 25 is closer to the front portion of the lift arm 24, and accordingly, the inside of the dust box 4 can be made wider by that amount.

  The loading device 6 includes a push cylinder 27 that rotates the push plate 25 about the third shaft 32, and a base end portion of the push cylinder 27 is attached to the lift arm 24. The push plate 25 is attached to the third shaft 32. According to this configuration, the dust can be pushed toward the dust container 3 by extending the push cylinder 27 and rotating the push plate 25 while suppressing an increase in the length of the push cylinder 27. . In addition, since the tip of the push cylinder 27 is attached to the push plate 25 closer to the third shaft 32, the amount by which the push cylinder 27 (rod 27A) protrudes into the dust input space K can be reduced.

  Further, the first shaft 22 is disposed on the rear and upper portions of the side plates 14 and 15 (the first shaft body 22A is disposed on the front side of the shutter 13 which is a part of the rear wall of the dust container 4), and the support shaft. Arranged below 19 (disposed below the top wall 11 which is a part of the rear wall). One end side of the lift arm 24 is pivotally attached to the holding body 22c via the second shaft 31, and the lift arm 24 is rotated around the second shaft 31 by the lift cylinder 26 so as to move upward. Lifted. According to this configuration, when the lift arm 24 is raised by contracting the lift cylinder 26, the inside of the dust throwing box 4 can be widened, and the lift arm 24 does not interfere with the throwing of the dust.

  Furthermore, the swing cylinder 21 is disposed outside the dust throwing box 4 by being supported by the end portions 22a and 22a of the first shaft body 22A protruding outward from the side plates 14 and 15 of the dust throwing box 4. And the loading device 6 is arrange | positioned inside the dust throwing-in box 4 by being supported by the part arrange | positioned inside the side plates 14 and 15 among 22 A of 1st shaft bodies. For this reason, even if dust is loaded by the loading device 6, it is possible to suppress the swing cylinder 21 from being soiled by dust.

  The present invention can be variously modified without departing from the spirit of the present invention. In addition, the specific configuration of each part is not limited to the above embodiment. For example, in the above embodiment, the first shaft body 22 </ b> A is one long in the width direction, and the end portions 22 a and 22 a are protruded from the side plates 14 and 15. However, the first shaft body 22 </ b> A may be provided as a pair spaced apart in the width direction, and the respective end portions may protrude from the side plates 14 and 15.

  In the loading device 6 of the above-described embodiment, the second shaft 31 is provided on the holding body 22c of the first shaft 22, and the push cylinder 27 and the lift arm 24 are connected to the second shaft 31. However, for example, the second shaft 31 may be omitted and the push cylinder 27 and the lift arm 24 may be directly connected to the first shaft body 22A.

  DESCRIPTION OF SYMBOLS 1 ... Dust collection truck, 2 ... Vehicle body, 3 ... Dust storage box, 4 ... Dust collection box, 5 ... Driver's cab, 6 ... Loading device, 7 ... Rear opening, 8 ... Frame wall, 11 ... Top wall, 12 ... Dust input port, 13 ... shutter, 14, 15 ... side plate, 17 ... bottom plate, 17A ... rear portion, 17B ... front portion, 18 ... front opening, 19 ... spindle, 20 ... inclined branch point, 21 ... swing cylinder, 22 ... First shaft, 22A ... First shaft body, 22a, 22a ... End, 22b ... Bracket, 22c ... Holding body, 24 ... Lift arm, 25 ... Push plate, 26 ... Lift cylinder, 27 ... Push cylinder, 28 ... Stiffener, 29 ... Housing, 30 ... Holding body, 31 ... Second shaft, 32 ... Third shaft, 33 ... Fourth shaft, 34 ... Dust pressing surface, 35 ... Fifth shaft, K ... Dust input space, X ... Reference posture, Y ... dust throwing posture, Z ... throwing release posture

Claims (4)

A dust storage box for storing dust, a dust input box for storing dust, a loading device for loading dust into the dust storage box, and opening and closing the rear opening of the dust storage box A garbage collector equipped with an open / close cylinder for rotating the dust input box,
The dust input box has side walls on both sides in the width direction, and the main shaft along the width direction of the dust input box is supported between the side walls so that the end projects from the inside of the dust input box to the outside.
The loading device includes a push plate for loading dust into the dust storage box, and a lift arm that rotatably supports the push plate via a horizontal axis.
A garbage truck with an open / close cylinder and a lift arm rotatably supported on the main shaft. The loading device includes a lift cylinder for raising and lowering the lift arm,
The dust input box is rotatable around a support shaft arranged in the dust storage box,
The refuse collection vehicle according to claim 1, wherein one end of the lift cylinder is rotatably supported on a support shaft, and a lift arm is rotatably supported on the other end of the lift cylinder. The refuse collection vehicle according to claim 1 or 2, wherein the dust throwing box has a rear wall at an upper portion thereof, a lower part of the rear wall is used as a dust throwing opening, and a main shaft is disposed on the front side of the rear wall. The opening / closing cylinder is disposed outside the dust box by being supported by a protruding portion of the main shaft that protrudes outward from the side wall of the dust container box, and the loading device is disposed inside the side wall of the main shaft. The refuse collection vehicle according to any one of claims 1 to 3 , wherein the garbage collection vehicle is arranged inside the dust throwing box by being supported by a portion arranged on the inside.

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