JP2005335888A - Rubbish loading device and rubbish loading vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rubbish loading vehicle capable of casting in the waste continuously without generating a large noise. <P>SOLUTION: A rubbish loading device 4 is structured so that a rotary spiral body 7 is installed in a transport passage 6 formed in the lower part of a hoper 5 which can cast in the waste, whereby the waste is loaded in an accommodation box from a cast-in hole 6b in the transport passage 6 confronting the rear opening of the accommodation box mounted on a chassis by rotating the spiral body 7, and at the time of dumping the waste, a tail gate 8 is opened and the rotary spiral 7 is rotated so as to dump the waste remaining in the passage 6 from the cast-in hole 6b, and then the accommodation box is put in the dumping attitude tilting backward and the accommodated waste is dumped. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is, for example, a dust loading device and a dust collecting vehicle for bringing waste discharged from a home, a factory, etc. (including waste recovered for reuse as a resource) into an in-vehicle storage box or the like. About.

  Conventionally, garbage collection vehicles that collect waste in a broad sense, including waste that is collected for reuse as resources as well as dumped waste and garbage, have been mainly drum-type, press-type, and rotating plates. There are three types of molds. For example, as shown in FIG. 7, the drum mold uses a drum 52 having a circular cross section with an inward scraping blade 51 formed on the inner wall as a storage box, and the drum 52 is rotated to rotate the rear part of the drum 52. The waste is thrown into the drum 52 so that the waste thrown into the drum 52 is fed into the drum 52 (see, for example, Patent Document 1).

  For example, as shown in FIG. 8, the press die can be freely rotated to a lower end of the shielding plate 56 and a shielding plate 56 that reciprocally moves in a slanting vertical direction in a tailgate 55 attached to the rear portion of the storage box. Loading means comprising an attached reversing plate 57 is provided. The reversing operation of the reversing plate 57 (see FIG. 8A) and the lowering operation of the shielding plate 56 and the reversing plate 57 (see FIG. 8B). By repeating the four operations of the reversing plate 57 (see FIG. 8C) and the raising operation of the shielding plate 56 and the reversing plate 57 (see FIG. 8D) as one cycle, The waste thrown into the bucket 59 from 58 is loaded (for example, refer patent document 2).

For example, as shown in FIG. 9, the rotary plate mold includes a tail plate 60 attached to the rear part of the storage box, a push plate 61 that reciprocates while being supported at one end side, and a rotatable rotary plate 62. Loading means comprising: a rotating operation of the rotating plate 62 (see FIG. 9A), a rotating operation of the rotating plate 62 and a returning operation of the pushing plate 61 (see FIG. 9B), By repeatedly performing the four operations of the forward rotation operation (see FIG. 9C) and the pushing operation of the pushing plate 61 (see FIG. 9D) as one cycle, the waste thrown into the bucket 64 from the insertion port 63 A thing is loaded (for example, refer patent document 3).
JP 09-286006 A JP 2000-327105 A JP 2000-142906 A

  In the drum-type garbage truck shown in FIG. 7, it is possible to continuously load the waste with the scraping blades 51 formed inward by rotating the drum 52. There is a problem that a considerably large falling sound (noise) accompanied by an impact is generated when the waste scraped up to the bottom falls downward.

  In the press-type garbage truck shown in FIGS. 8A to 8D, waste does not fall during the loading operation, so that a large noise like a drum type does not occur. However, there is a problem that waste cannot be input while the reverse plate 57 closes the input port 58 during the lowering operation of the shielding plate 56 and the reverse plate 57 as shown in FIG.

  9 (a) to 9 (d) do not generate a large noise like the drum type, but the pushing plate 61 completes the pushing operation as shown in FIG. 9 (d). Until then, the rotation of the rotating plate 62 is stopped, and the amount of waste that can be input is limited during that time. As a result, there is a problem that the waste can be input only intermittently. It was.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a dust loading device and a dust collecting vehicle that can continuously throw in waste without generating a large noise.

(1) In the garbage loading device 4 mounted on the rear part of the storage box 3 mounted on the chassis 2 of the garbage truck 1,
A rotating spiral body 7 is disposed in a transfer passage 6 formed in a lower portion of the hopper 5 into which waste can be charged, and the storage port 3 faces the rear opening 3a of the storage box 3 so that the input port 6b of the transfer path 6 faces the storage. Waste is sent into the box 3.

  According to such a configuration, the waste thrown in from the hopper 5 is successively transferred through the transfer passage 6 by the rotation of the rotating spiral 7 and sent into the storage box 3 from the input port 6b. Continuous input is possible. Moreover, since waste is forced into the storage box 3 continuously and without force by the rotating spiral body 7, it does not flow backward. And since the waste thrown in from the hopper 5 is transferred in the transfer channel | path 6 by the rotating spiral 7, a fall sound does not generate | occur | produce and generation | occurrence | production of noise can be suppressed.

(2) The garbage truck according to the present invention is disposed in the storage box 3, the storage box 3 mounted on the chassis 2, the tiltable tailgate 8 that covers the rear opening 3a of the storage box 3 so as to be openable and closable. In a garbage truck 1 provided with a dust loading device 4 provided in the tailgate 8 for loading objects,
The dust loading device 4 has a rotating spiral body 7 disposed in a transfer passage 6 formed in a lower portion of a hopper 5 into which waste can be thrown in, and the charging port 6 b of the transfer passage 6 faces the storage box 3. ing.

According to such a configuration, the waste introduced from the hopper 5 is sequentially transferred through the transfer passage 6 by the rotation of the rotating spiral body 7 and sent to the storage box 3 from the input port 6b. Can be input. Moreover, since waste is forced into the storage box 3 continuously and without force by the rotating spiral body 7, it does not flow backward. And since the waste thrown in from the hopper 5 moves the inside of the transfer channel | path 6 by the rotating spiral 7, a falling sound does not generate | occur | produce and generation | occurrence | production of noise can be suppressed.
Further, when dumping the waste, the tailgate 8 is opened in a tilted state, the rotating spiral 7 is rotated, and the waste remaining in the transfer passage 6 is dumped from the inlet 6b. Cleaning in the transfer passage 6 can be performed.

(3) In such a garbage collection vehicle 1, it is preferable that the rotating spiral body 7 is supported in a cantilevered state at one end side away from the charging port 6b. In this way, since there is no obstacle in the waste feeding direction up to the input port 6b, high transfer efficiency can be ensured.

(4) At least two or more of the rotating spiral bodies 7 may be disposed. By disposing a large number of rotating spirals 7, waste transfer efficiency can be improved.

(5) It is preferable that at least a pair of the rotating spiral bodies 7 are rotated inward from each other. In this way, since the thrown-in waste is bitten by the rotating spiral bodies 7, 7, the waste can be reliably transferred.

(1) The dust loading device of the present invention allows wastes thrown in from the hopper to be continuously fed through the transfer passage by the rotation of the rotating spiral and sent into the storage box, so that waste can be continuously thrown in. Become. Moreover, since waste is forced into the storage box continuously and without force by the rotating spiral, there is no backflow. And since the waste thrown in from the hopper moves in the transfer passage by the rotating spiral body, no falling sound is generated and generation of noise can be suppressed.

(2) In the refuse collection vehicle of the present invention, the waste thrown in from the hopper is sequentially transferred in the transfer passage by the rotation of the rotating spiral and sent into the storage box, so that the waste can be continuously put in. . Moreover, since waste is forced into the storage box continuously and without force by the rotating spiral, there is no backflow. And since the waste thrown in from the hopper moves in the transfer passage by the rotating spiral body, no falling sound is generated, and generation of noise can be suppressed.
In addition, when dumping waste, the tailgate is opened in a tilted state, the rotating spiral is rotated, and the waste remaining in the transfer passage is dumped from the inlet, so that Cleaning can be performed. Therefore, the next time the waste is thrown in, the trouble that the loading operation is hindered by the waste remaining in the transfer passage does not occur.

Hereinafter, a dust loading device and a garbage truck according to the best embodiment of the present invention will be described in detail with reference to the drawings.
1 is a cross-sectional view of the dust loading device, FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, FIG. 3 is a cross-sectional view taken along the line BB in FIG. FIG. 5 is a side view of the tailgate, and FIG. 6 is an overall view of the garbage truck. First, as shown in FIG. 6, the garbage collection vehicle 1 includes a storage box 3 that can be mounted on the chassis 2 in a horizontal position and a dumping posture that tilts backward, and a rear portion of the storage box 3. A tiltable tailgate 8 that covers the opening 3a in an openable and closable manner, and a dust loading device 4 provided in the tailgate 8 for loading waste into the storage box 3 are provided.

  As shown in FIGS. 1 to 5, the dust loading device 4 is disposed substantially in parallel in a transfer passage 6 formed by being surrounded by a casing 6 a continuously provided at a lower portion of a hopper 5 into which waste can be charged. A pair of rotating spiral bodies (screws) 7 (71, 72) that are driven to rotate in the forward and reverse directions are arranged, and the inlet 6b of the transfer passage 6 faces the rear portion of the storage box 3. The rotating spiral bodies 71 and 72 include outward spiral blades 7b formed in opposite directions on the outer peripheral surface of the shaft 7a. The outward spiral blades 7b are provided at a predetermined pitch in the axial direction of the shaft 7a. The rotating spiral bodies 71 and 72 rotate inwardly in opposite directions, so that the thrown-in waste can be transferred toward the slot 6b.

  One end side of the shaft 7 a of each rotating spiral body 7 is supported by a bearing 9 attached to the frame of the tailgate 8. The bearing 9 includes two radial bearings 9a and 9a, and supports the shaft 7a of the rotating spiral body 7 in a cantilevered state, but the other end side of the outward spiral blade 7b (the other end side of the shaft 7a). ) May rotate in a state where it is slightly slidably in contact with the inner surface of the inlet 6 b of the transfer passage 6. In this way, by supporting the one end side of the shaft 7a away from the charging port 6b in a cantilevered state by the bearing 9, the waste feeding direction in the transfer passage 6 surrounded by the casing 6a up to the charging port 6b. Since there are no obstacles, high transfer efficiency can be ensured. When there is enough room for two or more (one pair) of rotating spiral bodies 7 to be disposed in the vehicle width direction, the garbage truck 1 is omitted from illustration, but three or more rotating spiral bodies 7 are mounted on the vehicle. It is also possible to improve the waste transfer capability by arranging in the width direction.

  Further, the rotating spiral body 7 is arranged in a state of being inclined upwardly toward the charging port 6b. That is, one end side of the shaft 7a supported by the bearing 9 is lower than the insertion port 6b side on the other end side. With such an arrangement, the rotating spiral body 7 rotates, so that the thrown-in waste is transferred while being pushed up from a low position to a high position. More specifically, the thrown-in waste is sandwiched between the shaft 7a of the rotating spiral body 7 and the outward spiral blade 7b so that the action of gravity is taken into consideration and is packed in the casing 6a. It is continuously sent to the storage box 3 and moved. Accordingly, as shown in FIG. 7, the waste falling phenomenon in the drum 52 and the accompanying impact sound are generated as in the case of the conventional drum type in which the inward scraping blade 51 is provided in the drum 52. Therefore, waste can be transferred smoothly with less noise. In addition, since the rotating spiral body 7 is disposed in an inclined state as described above, an operator can input waste from the hopper 5 at a low position that opens to one end of the shaft 7a. Workability at the time becomes good. In addition, although the ascending gradient of the rotating spiral body 7 can be set to about 10 ° to 60 °, it is preferable to set it to 40 ° to 45 °. Although illustration is omitted, if the notches are formed in the outer peripheral edges of the rotating spiral bodies 71 and 72 so that the bag body storing the waste can be broken during the transfer, the waste will not be bulky. And can be stored in the storage box 3.

  A sprocket 10 is fixed to the end of the shaft 7 a protruding from the bearing 9, and the sprocket 10 is fixed to an output shaft of a hydraulic motor 12 as a drive source attached to the frame of the tailgate 8 via a chain 11. The sprocket 13 is connected by transmission. In such a configuration, the rotating spiral body 7 (71, 72) can be set, for example, to an outer diameter: 300 mm, a pitch: 300 mm, a total length: 1000 mm, and a biaxial distance: 350 mm. Further, the rotating spiral body 7 can be driven inward (rotations in opposite directions) at a rotation speed of 30 to 120 rpm, preferably 40 to 80 rpm.

  The hydraulic motor 12 is, for example, from a hydraulic pump (for example, a gear pump connected to an in-vehicle hydraulic oil tank) driven by the engine of the garbage collection vehicle 1 via a PTO (output switching device), although not shown. The rotating spiral body 7 can be configured to rotate by receiving the supply of hydraulic oil. However, the supply of hydraulic oil may be separately received from a hydraulic supply device disposed in a waste dumping site or the like. . Further, instead of the hydraulic motor 12, the rotating spiral body 7 may be driven by an electric motor. In this case, for example, power is supplied to the electric motor from an in-vehicle generator driven by the engine of the garbage collection vehicle 1. Alternatively, power may be separately supplied from a power supply device disposed in a waste dumping site or the like.

  The operation of the dust loading device 4 can be controlled by an instruction from an operation panel 14 (see FIG. 5) provided at the rear portion of the tailgate 8. That is, the operation panel 14 is provided with a loading button, a normal rotation button, a reverse rotation button, and an emergency stop button. When the loading button is operated during the loading operation of the waste, the rotating spiral body 7 continues. And forward rotation (both rotating spiral bodies 71 and 72 rotate inward in opposite directions; for example, in FIG. 2, the rotating spiral body 71 rotates clockwise and the rotating spiral body 72 rotates counterclockwise). As for the normal rotation button, the rotating spiral body 7 rotates normally only while being pressed. The rotating helix 7 is reversed only while the reverse button is pressed. When the clogging phenomenon due to the biting of the waste occurs or when the rotating spiral body 7 is urgently stopped, the rotating spiral body 7 is stopped by pressing the emergency stop button.

  The upper end of the tailgate 8 is pivotally attached to the upper edge of the rear opening 3a of the storage box 3 via a support shaft 15, and as indicated by a two-dot chain line in FIG. 6, a PTO (output switching device) Is tilted with respect to the storage box 3 by a tailgate cylinder 16 that is supplied with hydraulic oil from a hydraulic pump (for example, a gear pump connected to a vehicle-mounted hydraulic oil tank) driven by the engine of the garbage truck 1 To do. That is, one end (main body base) of the tailgate cylinder 16 is pivotally attached to the side edge of the rear opening 3 a of the storage box 3, and the other end (piston tip) is pivotally attached to the center of the side frame 20 of the tailgate 8. When the tailgate 8 is shown by a solid line in FIG. 6, the rear opening 3a of the storage box 3 is closed, and when the tailgate 8 is shown by a two-dot chain line, the rear opening 3a of the storage box 3 in the dump posture is opened. It has been. Even when the storage box 3 is in the mounting posture as shown by the solid line in FIG. 6, the tailgate 8 can be opened to the same degree as the opening angle shown by the two-dot chain line, although illustration is omitted.

  An opening / closing door 17 is provided on the back side of the tailgate 8 so as to freely open and close a back side opening (not shown) facing the opening of the hopper 5. Normally, as shown by a solid line in FIG. When the waste is dumped together with the rear side opening, the door 17 is moved upward to open the rear side opening and open the opening of the hopper 5 to the outside. it can.

  As shown in FIG. 5, the open / close door 17 is supported by the tailgate 8 via a pair of left and right link members 19 that are elastically biased in the pulling direction by a spring 18. When the knob 21 attached to the handle is gripped and pushed upward, the spring 18 can be easily moved to the upper open standby position indicated by the two-dot chain line, and the door 17 is held at that position. Can do. When the door 17 is closed, the knob 21 may be grasped and pushed downward.

  As shown in FIG. 1, a bilge tank 22 for collecting sewage discharged when loading waste is provided at the lower part of the tailgate 8 over the entire width in the vehicle width direction. A manual opening / closing door 23 that can be opened and closed from the outside is provided. The bilge tank 22 is connected to a flow passage (not shown) extending downward from both ends of a flange 24 provided along the vehicle width direction at the lower portion of the rear opening 3a of the storage box 3.

  With such a configuration, the sewage discharged from the waste loaded in the storage box 3 can be collected in the bilge tank 22 without being discharged to the outside. Reference numeral 25 denotes a handle with a latch mechanism for opening / closing the open / close door 23. The tailgate 8 is a hydraulic pump (for example, an on-vehicle hydraulic oil tank) that is driven by the engine of the garbage collection vehicle 1 via a PTO (output switching device) with the rear opening 3a of the storage box 3 closed. Is locked by a lock cylinder (not shown) that receives the supply of hydraulic oil from a gear pump or the like connected to the vehicle, so that waste is not released to the outside during traveling or the like.

  On the other hand, the storage box 3 mounted on the chassis 2 is pivotally attached to the chassis 2 so that the lower portions on both sides of the rear end thereof can be tilted, and is disposed by a dump cylinder (not shown) disposed between the bottom of the substantially central portion and the chassis 2. Then, it is possible to perform an operation of tilting from a mounting posture placed substantially horizontally on the chassis 2 to a dumping posture (indicated by a two-dot chain line in FIG. 6) tilting backward. The above-described dump cylinder is supplied with hydraulic oil from a hydraulic pump (for example, a gear pump connected to a vehicle-mounted hydraulic oil tank) driven by the engine of the garbage truck 1 via a PTO (output switching device).

  The waste loading operation by the garbage truck 1 configured as described above will be described. First, the open / close door 17 of the tailgate 8 is moved to the upper open standby position indicated by the two-dot chain line in FIG. The opening of the hopper 5 is exposed, and the loading button of the operation panel 14 is pushed, and the waste is thrown into the hopper 5 in a state where the rotating spiral bodies 71 and 72 are continuously forward rotated. The thrown-in waste is bitten by the rotating spiral bodies 71 and 72, moves along the transfer passage 6, and is fed into the storage box 3 from the loading port 6b.

  Since the waste sent into the storage box 3 is sequentially pushed into the interior by the pushing pressure of the waste pushed in later, the waste can be continuously fed, and the efficiency of the loading work is improved. Moreover, since wastes are forcibly sent into the storage box 3 without interruption by the rotating spiral bodies 71 and 72, there is no backflow. And since the waste thrown in from the hopper 5 moves in the transfer path 6 by both the rotation spiral bodies 71 and 72, no falling sound is generated, and generation of noise can be suppressed. In addition, by setting the rotational speed of the rotating spiral bodies 71 and 72 to 40 to 80 rpm, it is possible to prevent the occurrence of problems such as waste scattering due to the centrifugal force generated with the rotation of the rotating spiral bodies 71 and 72. it can. Furthermore, since the rotating spiral bodies 71 and 72 rotate inwardly, the thrown-in waste is bitten between the rotating spiral bodies 71 and 72, so that the waste is reliably fed into the storage box 3.

  When the waste is dumped, first, the locked state by the lock cylinder is released, the tailgate cylinder 16 is operated, and the tailgate 8 is opened to the limit while the storage box 3 is kept in the mounting posture. Next, the dump cylinder is operated to bring the storage box 3 into the dump posture (with the tailgate 8 open), and the waste stored inside is dumped. When the dumping is completed, the dump cylinder is operated to bring the containing box 3 into the mounting posture, the tailgate cylinder 16 is operated to close the tailgate 8, and the lock cylinder is operated to lock the tailgate 8 in the closed state. If it does, it will be in the state which can drive | work.

  The dust loading device and the garbage truck of the present invention are not limited to the embodiments, and can be freely changed in design or improved without departing from the gist of the invention. For example, in the present embodiment, the garbage collection vehicle 1 equipped with the dump-type storage box 3 has been described. However, the dust loading device 4 of the present invention is not limited to this, but the illustration is omitted. The present invention can also be applied to a garbage collection vehicle in which stored waste is pushed out from the rear opening 3a by a discharge plate that is disposed in the storage box 3 and is movable in the front-rear direction. In this case, when dumping the waste, before the waste is pushed out by the discharge plate, the sewage in the bilge tank 22 is discharged into the rotary spiral bodies 71 and 72 and the transfer passage 6 (and the rotary spiral bodies 71 and 72). It is preferable to release the remaining waste. The number of rotations, pitch, outer diameter, total length, and the like of the pair of rotating spiral bodies 71 and 72 are not necessarily the same and may be different from each other. Moreover, in this Embodiment, although a pair of rotation spiral bodies 71 and 72 are provided in the transfer channel | path 6, the dust loading device 4 of this invention does not limit the number of rotation spiral bodies 7 to embodiment. However, it may be single or three or more. Further, the shape (outer diameter) of the rotating spiral body 7 may be formed in a tapered shape.

It is sectional drawing of the refuse loading apparatus which concerns on embodiment of this invention. It is AA arrow sectional drawing of the same FIG. FIG. 3 is a sectional view taken along line B-B in FIG. 2. It is CC sectional view taken on the line of FIG. It is a side view of the dust loading device. It is a side view including the state change figure of the same garbage collection vehicle. It is a side view which shows an example of the conventional drum type garbage truck. FIG. 4 is a diagram illustrating the operation of main parts in an example of the press-type garbage collection vehicle, where (a) is a reversing operation of the reversing plate, (b) is a descending operation of the shielding plate and reversing plate, and (c) is a scraping operation of the reversing plate. (D) is explanatory drawing of the raising operation | movement of a shielding board and an inversion board. FIG. 4 is a diagram illustrating the operation of the main part of an example of the same rotary plate type garbage truck, (a) is the normal rotation operation of the rotary plate, (b) is the normal rotation operation of the rotary plate, and the return operation of the pushing plate, (c) is (D) is explanatory drawing of the pushing operation | movement of a pushing board, (d).

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Dust collection truck, 2 ... Chassis, 3 ... Container, 4 ... Dust loading device, 5 ... Hopper, 6 ... Transfer passage, 6b ... Loading port, 7 ... Rotating spiral body, 8 ... Tail gate

Claims (5)

A dust loading device (4) mounted on the rear part of the storage box (3) mounted on the chassis (2) of the garbage truck (1),
A rotating spiral body (7) is disposed in a transfer passage (6) formed in a lower portion of a hopper (5) capable of charging waste, and an input port (6b) of the transfer passage (6) is connected to the storage box ( 3) A dust loading device characterized in that the waste is fed into the storage box (3) facing the rear opening (3a). A storage box (3) mounted on the chassis (2), a tiltable tailgate (8) covering the rear opening (3a) of the storage box (3) so as to be openable and closable, and the storage box (3) A garbage truck (1) comprising a dust loading device (4) provided in the tailgate (8) for loading waste,
In the dust loading device (4), a rotating spiral body (7) is disposed in a transfer passage (6) formed in a lower portion of a hopper (5) into which waste can be put, and the transfer passage (6) A garbage collection vehicle characterized in that the input port (6b) faces the storage box (3).   The refuse collection vehicle according to claim 2, wherein the rotating spiral body (7) is supported in a cantilevered state at one end side away from the charging port (6b).   The garbage truck according to claim 2 or 3, wherein at least two of the rotating spiral bodies (7) are arranged.   The garbage truck according to claim 4, wherein at least a pair of the rotating spiral bodies (7) rotate inwardly from each other.

Images