JP2007254060A - Garbage collection vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent oil leakage from a slide cylinder by preventing a garbage in a garbage throwing box from being leaked out by a simple constitution in a garbage collection vehicle. <P>SOLUTION: The slide cylinders 13 are arranged on outer sides of left and right side walls of the garbage throwing box 6 respectively. An upper end of a slide plate 10 is bonded to distal ends of cylinder rods 13a of the left and right slide cylinders 13 by a slide plate support shaft 12. Sliding openings 31 for moving the slide plate support shaft 12 are formed on left and right side walls of the garbage throwing box 6. Cover members 26 for closing the sliding openings 31 are provided on the left and right side surfaces of the slide plate 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a dust collecting vehicle including a dust container mounted on a vehicle body and a dust container box connected to a rear opening of the dust container and equipped with a dust loading device. .

Conventionally, a dust storage box mounted on a vehicle body and a dust input box connected to a rear opening of the dust storage box and equipped with a dust loading device are provided. A sliding plate that is slidable in the vertical direction by the expansion and contraction operation of the sliding cylinder in the charging box, and a push plate that is swingable in the front and rear direction by the expansion and contraction operation of the oscillating cylinder are provided at the lower end of the sliding plate. The sliding plate and the pushing plate are operated by reversing, lowering, compressing and raising as one cycle by the expansion and contraction operation of the sliding cylinder and the swing cylinder, so that the dust put into the dust throwing box through the throwing port is A garbage truck configured to be loaded into a storage box is known (see, for example, Patent Document 1).
JP 2004-244190 A

  However, in the conventional garbage truck, the sliding cylinders are respectively arranged outside the left and right side walls of the dust container, and the upper ends of the sliding plates are defined by the rod tips of the left and right sliding cylinders and the sliding plate support shafts. Since they are coupled, the sliding plate support shaft moves up and down, so that sliding openings that extend along the sliding direction of the sliding plate are formed on the left and right side walls of the dust box.

  For this reason, dust in the dust box, for example, resin dust such as foamed polystyrene or a plastic bag, may leak from the sliding opening and adhere to the sliding cylinder. The sliding cylinder is usually provided with a dust seal so that dust adhering to the cylinder rod does not enter the cylinder. However, when the resin dust adheres to the cylinder rod, it may melt due to the heat of the sliding cylinder that has been repeatedly expanded and contracted, and the welded dust will damage the cylinder seal, causing oil from the sliding cylinder. There was a problem of leakage.

  In addition, the deposited dust may pass through the seal of the sliding cylinder and enter the working oil of the cylinder.At that time, the dust adheres to the filter provided in the hydraulic circuit, and various types of hydraulic equipment such as cavitation of the hydraulic pump are used. Was causing problems.

  The present invention has been made in view of the above points, and the object of the present invention is to prevent the dust in the dust box from leaking out with a simple configuration and prevent oil leakage from the sliding cylinder. There is to do.

  In order to achieve the above object, in the present invention, the sliding opening for moving the sliding plate support shaft is closed by the cover member.

  Specifically, in the first invention, there is provided a dust storage box mounted on the vehicle body, and a dust input box connected to the rear opening of the dust storage box and equipped with a dust loading device inside. Targets garbage collection vehicles.

The dust loading device includes a sliding plate that is slidable in the vertical direction by the expansion and contraction operation of the sliding cylinder in the dust box, and a front and rear direction by the expansion and contraction operation of the swing cylinder at the lower end of the sliding plate. With a swingable pusher plate,
The sliding plate and the pushing plate are operated as one cycle by reversing, lowering, compressing and raising by the expansion and contraction operation of the sliding cylinder and the swinging cylinder, so that the dust put into the dust throwing box through the throwing port is stored in the dust. Configured to load into a box,
The sliding cylinders are respectively arranged outside the left and right side walls of the dust box,
The upper ends of the sliding plates are coupled by the rod tips of the left and right sliding cylinders and sliding plate support shafts,
Sliding openings for moving the sliding plate support shaft are formed on the left and right side walls of the dust box,
Cover members for closing the sliding openings are provided on the left and right side surfaces of the sliding plate.

  That is, the opening for sliding provided on the left and right side walls of the dust box is indispensable for the movement of the sliding plate support shaft, but the dust in the dust box may leak from the sliding opening. . However, according to the above configuration, the cover members provided on the left and right side surfaces of the sliding plate cover the sliding opening from the inside, so even if dust adheres to the sliding plate, it leaks out of the dust box. There is nothing. Further, since the cover member is provided on the left and right side surfaces of the sliding plate and the cover member is moved together with the sliding plate, the sliding plate can be configured so as not to hinder the sliding of the sliding plate. Therefore, with a simple structure, it is possible to prevent dust from adhering to the cylinder rod and prevent oil leakage from the sliding cylinder. Further, the deposited dust does not pass through the seal of the sliding cylinder and enter the working oil of the cylinder, and the dust does not adhere to the filter provided in the hydraulic circuit.

In the second invention, the sliding opening extends in the sliding direction of the sliding plate,
When the sliding cylinder extends and the sliding plate is at the uppermost position, the cover member is configured to close the sliding opening from the inside.

  In other words, with the sliding cylinder extended and in the uppermost position, the dust collection vehicle runs, puts in the dust, or stands by, so the dust in the dust throwing box leaks out from the sliding opening. However, according to the above configuration, since the cover member is configured to block the sliding opening from the inside with the sliding plate in the uppermost position, the dust is effectively prevented from leaking out and the sliding plate is prevented. Oil leakage from the moving cylinder is prevented. Further, the deposited dust does not pass through the seal of the sliding cylinder and enter the working oil of the cylinder, and the dust does not adhere to the filter provided in the hydraulic circuit.

  In the third invention, the cover member is attached to a cover bracket provided on a reinforcing rib that reinforces a boss portion through which the sliding plate support shaft is inserted.

  According to the above configuration, since the bracket for the cover is attached to the conventional reinforcing rib, the space around the sliding plate can be used effectively, and the optimal cover member does not hinder the sliding of the sliding plate. Placed in position.

  In the fourth invention, the cover member is made of rubber.

  According to the above configuration, the cover member is made of rubber, so that the cover member can be made flexible, and the cover member does not hinder the sliding of the sliding plate even if dust adheres to some extent. . Further, by selecting a highly durable rubber material, it can be made less painful.

  In the fifth invention, the other end of a telescopic bellows member having one end attached in the vicinity of the upper end of the sliding opening of the dust throwing box is attached to the rod tip of the sliding cylinder.

  According to the above configuration, the bellows member covers the sliding opening even when the cylinder rod of the sliding cylinder is retracted. Therefore, it is possible to more effectively prevent dust from leaking out from the dust box. it can.

  As described above, according to the present invention, the sliding openings for moving the sliding plate support shaft are closed by the cover members provided on the left and right side surfaces of the sliding plate. For this reason, even if dust adheres to the upper end of the sliding plate, it does not leak out of the dust box and prevents the dust from adhering to the cylinder rod with a simple structure. Oil leakage from the can be prevented. In addition, since the deposited dust does not pass through the seal of the sliding cylinder and enter the working oil of the cylinder, the dust adheres to the filter provided in the hydraulic circuit and causes various problems in hydraulic equipment such as cavitation of the hydraulic pump. Can be prevented.

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

  FIG. 1 shows a schematic configuration of a garbage truck according to an embodiment of the present invention. In FIG. 1, a dust container 3 is mounted on a vehicle body 2 of a garbage collector 1. In the rear opening 4 of the dust container 3, there is provided a dust throwing box 6 pivotally supported by a throwing box support pin 5 above. The dust box 6 is configured to be rotatable about the input box support pin 5 by a rotating cylinder (not shown) provided between the dust container 3 and the dust box 6.

  A throwing port 7 is opened at the rear of the dust throwing box 6, and a dust loading device 30 is provided in the inside. The dust loading device 30 is for compressing and loading the dust thrown into the dust throwing box 6 through the throwing port 7 into the dust containing box 3.

  As shown in FIG. 2, guide groove members 8 made of channel steel are laid on both side walls of the dust input box 6 from the front upper part toward the rear lower part also serving as a reinforcing frame. A sliding plate 10 that extends to the full width is accommodated in the dust box 6. Guide rollers 11 are rotatably provided above and below both side edges of the sliding plate 10. These guide rollers 11 are slidably fitted along the inner wall of the guide groove member 8.

  A sliding plate support shaft 12 is inserted into the boss portion 20 provided at the left and right end portions of the upper portion of the back surface of the sliding plate 10. The sliding plate support shaft 12 matches the sliding distance of the sliding plate 10 so as to protrude beyond the inside of the dust throwing box 6 beyond the sliding opening 31 formed on the side wall of the dust throwing box 6. Has been placed.

  Sliding provided between the sliding plate support shaft 12 projecting outward from the side wall of the dust input box 6 and the lower part of the dust input box 6 along the inclination direction of the guide groove member 8 outside the dust input box 6. A cylinder 13 (shown by a two-dot chain line in FIG. 2) is connected. The sliding plate 10 is reciprocated up and down along the guide groove member 8 by the expansion and contraction operation of the sliding cylinder 13.

  As shown in FIG. 1, at the lower end of the sliding plate 10, a pushing plate 15 that extends to the full width of the dust box 6 is supported so as to be swingable back and forth. The tip of the pushing plate 15 is slightly bent toward the front. A swing cylinder 14 is connected between a connecting portion 15a projecting from the back surface of the push plate 15 and a slide plate support shaft 12 provided at the upper back of the slide plate 10. The pushing plate 15 is swung back and forth by an expansion / contraction operation 14.

  A discharge plate 17 is slidably disposed in the dust container box 3 in the front-rear direction. The discharge plate 17 is a plate-like body that is formed to have substantially the same width and height as the dust storage box 3 and slides back and forth in the dust storage box 3 by an expansion / contraction operation of a discharge cylinder (not shown). Has been made.

  As shown in FIGS. 2 and 3, a reinforcing member having a gentle arc-shaped outer edge extending in the sliding direction of the sliding plate 10 from the boss portion 20 around the boss portion 20 of the sliding plate 10 in a side view. Ribs 21 are formed. The reinforcing rib 21 is welded with a cover mounting member 22 having an arc portion 22 a and a straight portion 22 b along the outer edge of the reinforcing rib 21. In addition, you may attach the angle 24 mentioned later directly to the outer edge of the reinforcement rib 21, without providing this member 22 for cover attachment.

  At the upper end of the cover mounting member 22, a mounting plate 23 is welded perpendicularly to the cover mounting member 22, and an angle (equilateral mountain steel) 24 is welded to the mounting plate 23. The angle 24 includes a plurality (five in this embodiment) of bolt insertion holes 24a, to which a rubber cover member 26 is attached. The cover mounting member 22, the mounting plate 23 and the angle 24 constitute a cover bracket 25. The configuration of the cover bracket 25 is not limited to that of the present embodiment, and may be any compact shape that does not inhibit the sliding of the sliding plate 10.

  The cover member 26 is formed, for example, by cutting a highly rigid cloth-conveyor belt, and has an outer edge portion 26a having a portion that overlaps the sliding opening 31 in a side view along the sliding opening 31 and the cover. The mounting member 22 includes a linear mounting portion 26b that extends along the linear portion 22b of the mounting member 22, and has a sharp shape toward the tip. A plurality (five in this embodiment) of bolt insertion holes 26c are formed in the mounting portion 26b.

  The bolts 50 are inserted into the bolt 24 through holes 24a and 26c of the angle 24 and the cover member 26 and the bolt insertion holes 27a of the thin bar-like pressing member 27 that presses the cover member 26 from the outside, and the nut 51 is fastened from the angle 24 side. Thus, the cover member 26 is attached to the angle 24 (cover bracket 25).

  With this configuration, the cover member 26 closes the sliding opening 31 when the sliding plate 10 is at the uppermost end.

-Operation of garbage loading device-
In the dust loading device 30 configured as described above, as shown in FIG. 4, the sliding cylinder 13 and the swing cylinder 14 both extend, and the sliding plate 10 is in the rising end position (uppermost position). Then, the dust 55 is thrown into the dust throwing box 6 through the charging port 7, and a loading operation is started by turning on a start switch (not shown). 4 to 7, the sliding cylinder 13 is omitted for simplification.

  First, in the state shown in FIG. 4, the oscillating cylinder 14 is retracted and the pushing plate 15 is reversed to reach the reverse end position (see FIG. 5) (reversing step). Thereafter, the sliding cylinder 13 is retracted and the sliding plate 10 is lowered, and the pushing plate 15 is shifted to the lowering process.

  Next, when the push plate 15 reaches the lowering end position (see FIG. 6), the swing cylinder 14 is extended to swing the push plate 15 forward, and the process proceeds to the compression step.

  Then, when the pushing plate 15 swings to the foremost position (see FIG. 7), the sliding cylinder 13 is extended and the pushing plate 15 is lifted to shift to the ascending process, and the pushing plate 15 is moved to the rising end position. When it reaches (see FIG. 4), the series of loading operations is terminated.

  Thereby, the dust loading operation | movement which made each cycle of inversion, descent | fall, compression, and raise 1 cycle can be performed repeatedly.

  Further, when loading the dust 55 into the dust container 3, the discharge plate 17 in the dust container 3 is disposed at the rearmost position, and the dust 55 loaded by the dust loading device 30 is the discharge plate. When the force that presses 17 reaches a predetermined value or more, the discharge cylinder gradually moves forward by contracting. The dust 55 can be loaded while being compressed by the movement operation of the discharge plate 17.

  And when the dust 55 is loaded in this way and the dust container 3 becomes full, the operation of discharging the dust 55 is started. That is, after the garbage collection vehicle 1 is moved to a dust disposal site or the like, the rotating cylinder is extended, and the dust input box 6 is rotated upward about the input box support pin 5 so that the rear part of the dust container 3 Is opened, the discharge cylinder is extended, and the discharge plate 17 located at the front of the dust storage box 3 is moved rearward to discharge the dust 55 stored in the dust storage box 3.

-Action of cover member-
Next, the operation of the cover member 26 according to the present embodiment will be described.

  After the above-described dust loading operation is completed, the sliding plate 10 is in a standby state at the lift end position. During the dust loading operation, dust 55 such as foamed polystyrene or a plastic bag adheres to the sliding plate 10. For this reason, when the conventional garbage collection vehicle 1 travels at the lift end position, the dust 55 adhering to the upper end of the sliding plate 10 leaks out of the dust input box 6 from the sliding opening 31 and slides. It may adhere to the cylinder rod 13a of the moving cylinder 13. In particular, when the dust 55 is a resin foam polystyrene, a plastic bag, or the like, when the cylinder rod 13a is heated due to repeated expansion and contraction, it may be welded to the surface of the cylinder rod 13a. For this reason, the dust 55 adhering to the cylinder rod 13a breaks a seal (not shown) such as a dust seal of the sliding cylinder 13, and there is a problem that oil leaks from the sliding cylinder 13.

  In addition, the welded dust 55 may pass through the seal of the sliding cylinder 13 and be mixed into the working oil of the sliding cylinder 13. At this time, the dust 55 adheres to a filter (not shown) provided in the hydraulic circuit. However, various problems have been caused in hydraulic equipment such as cavitation of a hydraulic pump (not shown).

  However, in this embodiment, since the cover member 26 covers the sliding opening 31 from the inside at the rising end position of the sliding plate 10, even if the dust 55 is attached to the upper end of the sliding plate 10, etc. It does not leak out of the input box 6, and hydraulic equipment such as a hydraulic pump is not damaged.

  Therefore, the dust 55 is prevented from adhering to the cylinder rod 13a with a simple structure, and oil leakage of the sliding cylinder 13 can be prevented. Further, since the welded dust 55 does not pass through the seal of the sliding cylinder 13 and enter the working oil of the sliding cylinder 13, the dust 55 adheres to the filter provided in the hydraulic circuit, and cavitation of the hydraulic pump, etc. Various problems can be prevented from occurring in the hydraulic equipment.

  Further, since the cover bracket 25 is attached to the conventional reinforcing rib 21, the space around the sliding plate 10 can be used effectively, and the cover member 26 is optimal so as not to inhibit the sliding of the sliding plate 10. Can be placed at any position.

  Furthermore, since the cover member 26 is made of rubber, the cover member 26 is rich in flexibility, so even if dust 55 is attached to the cover member 26, the cover member 26 does not obstruct the sliding of the sliding plate 10 and has high durability. By selecting a rubber material, it can be made less painful.

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

  That is, the other end of the telescopic bellows member, one end of which is attached in the vicinity of the upper end of the sliding opening 31 of the dust container 6 may be attached to the tip of the cylinder rod 13a. The bellows member covers the sliding opening 31 even when the cylinder rod 13a of the sliding cylinder 13 is retracted, so that it is possible to more effectively prevent the dust 55 from leaking out of the dust input box 6. it can. Moreover, since the bellows member is provided on the tip end side of the cylinder rod 13a so as to be extendable and contractible, the expansion and contraction operation of the cylinder rod 13a is not hindered.

  In the above embodiment, the cover member 26 is made of rubber, but may be made of metal or resin.

  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 is useful for a garbage collection vehicle including a sliding plate that is slidable in the vertical direction by an expansion and contraction operation of a sliding cylinder in a dust container.

It is sectional drawing seen from the side surface which shows the rear part of a refuse collection vehicle. It is a side view which expands and shows the cover member and its periphery in a dust input box. It is the III-III sectional view taken on the line of FIG. It is the schematic explaining the raising end position of a refuse loading apparatus. It is the schematic explaining the inversion end position of a refuse loading apparatus. It is the schematic explaining the descent | fall end position of a refuse loading apparatus. It is the schematic explaining the state of the foremost position of a refuse loading apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dust collection truck 3 Dust storage box 4 Back opening 7 Input 10 Sliding plate 12 Sliding plate support shaft 13 Sliding cylinder 14 Swing cylinder 15 Push plate 20 Boss portion 21 Reinforcement rib 25 Cover bracket 26 Cover member 30 Garbage loading device 31 Sliding opening

Claims (5)

A dust collection vehicle comprising a dust storage box mounted on a vehicle body and a dust input box connected to a rear opening of the dust storage box and equipped with a dust loading device inside,
The dust loading device includes a sliding plate that is slidable in the vertical direction by the expansion and contraction operation of the sliding cylinder in the dust box, and a front and rear direction by the expansion and contraction operation of the swing cylinder at the lower end of the sliding plate. With a swingable pusher plate,
The sliding plate and the pushing plate are operated as one cycle by reversing, lowering, compressing and raising by the expansion and contraction operation of the sliding cylinder and the swinging cylinder, so that the dust put into the dust throwing box through the throwing port is stored in the dust. Configured to load into a box,
The sliding cylinders are respectively arranged outside the left and right side walls of the dust box,
The upper ends of the sliding plates are coupled by the rod tips of the left and right sliding cylinders and sliding plate support shafts,
Sliding openings for moving the sliding plate support shaft are formed on the left and right side walls of the dust box,
A dust collecting vehicle, wherein a cover member for closing the sliding opening is provided on the left and right side surfaces of the sliding plate. In the refuse collection vehicle according to claim 1,
The sliding opening extends in the sliding direction of the sliding plate,
A garbage truck, wherein the cover member is configured to close the sliding opening from the inside when the sliding cylinder extends and the sliding plate is in the uppermost position. In the garbage truck according to claim 1 or 2,
The dust collecting vehicle, wherein the cover member is attached to a cover bracket provided on a reinforcing rib for reinforcing a boss portion through which the sliding plate support shaft is inserted. In the garbage truck according to any one of claims 1 to 3,
The dust collecting vehicle, wherein the cover member is made of rubber. In the refuse collection vehicle according to any one of claims 1 to 4,
A dust collecting vehicle, characterized in that the other end of a telescopic bellows member, one end of which is attached in the vicinity of the upper end of the sliding opening of the dust container, is attached to the rod end of the sliding cylinder.

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