JP6262056B2 - Dust guide plate holding structure for garbage truck - Google Patents

Description

  The present invention relates to a dust guide plate holding structure for a dust collection vehicle that accommodates dust put in a dust throwing box into a dust container and transports it to a facility for processing the dust.

  2. Description of the Related Art Conventionally, there is known a dust collection vehicle in which a dust guide plate that can rotate and hold an upright position is provided at a lower edge portion of a dust input port of a dust input box (see, for example, Patent Document 1 below). Such a structure for holding a dust guide plate (hereinafter referred to as “dust guide plate holding structure”) in a conventional garbage collection vehicle can take two positions, a standing position and a lying position. When not in use, it is held in a standing position. In addition, such a conventional dust guide plate is urged in the direction of the standing position at the rotation position near the standing position by the dust guide plate holding structure.

Japanese Utility Model Publication No. 6-50401

  As described above, the conventional dust guide plate holding structure is only a structure for urging and holding in the standing direction as described above, and in addition to this, it tries to urge and hold in the lying down direction at the rotation position in the vicinity of the lying down position. In this case, there is a problem that the dust guide plate holding structure becomes complicated and takes a large space. Further, the conventional dust guide plate holding structure is unsightly from the outside, and is not good in appearance.

  In view of the above-mentioned problems, the present invention exhibits urging forces in the directions of the standing position and the lying position at the rotating positions in the vicinity of the standing position and the lying position while realizing space saving, and also guides the dust. An object of the present invention is to obtain a dust guide plate holding structure for a dust collecting vehicle capable of holding the standing position and the lying position of the plate.

(1) The present invention provides a dust container box on a chassis, a dust container box connected to the rear end of the dust container box and having a dust container inlet at the rear, and a vehicle at a lower edge of the dust container inlet. A garbage collection vehicle comprising: a rotation shaft provided in a width direction; and a dust guide plate having one end fixed to the rotation shaft and rotatable with the rotation shaft around the rotation shaft. In the dust guide plate holding structure, the dust guide plate is provided at a rear lower corner of the dust box, and the rotation range of the dust guide plate is from a standing position to a lying position, and the turning from the standing position to the lying position is performed. An elastic member and a link mechanism for urging the dust guide plate in the direction of the standing position or the lying down position with the equilibrium position in the range as a boundary are provided. One end is attached to the side and the other end is Attached to one end of the link mechanism, in the link mechanism is characterized in that the other end is fixed to the distal end portion of the pivot shaft. Here, the equilibrium position means that the direction in which the urging force is applied by the elastic member to the dust guide plate via the link mechanism and the rotating shaft is not biased to the direction of the standing position or the direction of the lying position, and is balanced. It is the position (equilibrium position) in the state of being

(2) In the dust guide holding structure for a dust collector of (1) above, the link mechanism is formed in the shape of a letter and a projecting piece with one end fixed to the tip of the rotating shaft. A first link member connected to the other end of the elastic member, and having one end connected to the other end of the elastic member. It is preferable that the second link member is rotatably connected to the tip end portion of the projecting piece, and the other end portion is rotatably connected to the other end portion of the first link member.

  According to the above configuration (1) or (2), the elastic member (for example, rubber, spring, etc.) and one end of the dust guide plate are connected via the rotating shaft and the link mechanism. It is possible to relatively freely set the arrangement and biasing direction of the elastic member on the outer surface of the charging box. As a result, while realizing space saving, the link mechanism and the rotation in the direction of either the standing position or the falling position of the dust guide plate with the equilibrium position in the rotation range of the dust guide plate as a boundary. The biasing force by the elastic member can be transmitted to the dust guide plate via the shaft. That is, according to the configuration of (1) or (2) above, when the operator places the dust guide plate closer to the standing position than the above-described equilibrium position, the dust guide plate is automatically set to the standing position. When the dust guide plate is positioned closer to the lying position than the above-described equilibrium position, the dust guide plate can automatically move in the tilt position direction. Moreover, if the urging force of the elastic member is appropriately adjusted, even if the dust guide plate is once reached to the standing position or the lying position, the standing position or the lying position is maintained unless a predetermined force is applied. be able to.

(3) In the dust guide plate holding structure of the dust collecting vehicle according to (1) or (2), the elastic member and the link mechanism are provided at a rear lower corner (corner of the lower edge) of the dust inlet. It is preferable to provide a corner bumper that stores and protects.

  According to the configuration of (3) above, since the elastic member and the link mechanism are housed in the corner bumper, the appearance is smart and the object hits the elastic member and the link mechanism to hold the dust guide plate. Can be prevented from malfunctioning.

It is a side view of the refuse collection vehicle provided with the dust guide plate holding structure in the embodiment of the present invention. It is a rear view of the refuse collection vehicle of FIG. It is a side view which shows the standing position of a dust guide plate. It is a side view which shows the equilibrium state of a dust guide plate. It is a side view which shows the fall position of a dust guide board. FIG. 4 is a rear view of FIG. 3.

  Hereinafter, with reference to FIGS. 1 to 6, a dust collection vehicle including a dust guide plate holding structure according to an embodiment of the present invention will be described. Here, FIG. 1 is a side view showing the entirety of a refuse collection vehicle provided with a dust guide plate holding structure according to an embodiment of the present invention, FIG. 2 is a rear view of the refuse collection vehicle of FIG. FIG. 4 is a side view showing a standing state of a dust guide plate in the dust collecting vehicle of FIG. 1, and a diagram showing a state of an elastic member and a link mechanism in the standing state, and FIG. 4 is a dust view of the dust collecting vehicle of FIG. FIG. 5 is a side view showing an equilibrium state of the guide plate, and a view showing a state of the elastic member and the link mechanism in the equilibrium state, and FIG. 5 is a side view showing a lying state of the dust guide plate in the dust collection vehicle of FIG. FIG. 6 is a diagram showing a state of the elastic member and the link mechanism in the lying state, and FIG. 6 is a rear view of FIG. 3 and a partially enlarged view. In the following description, the front-rear direction refers to the same direction as the traveling direction of the vehicle body, and the left-right direction refers to the left-right direction toward the front of the vehicle body.

  In FIG. 1, a garbage collection vehicle 100 according to an embodiment of the present invention is configured such that a dust storage box 2 and a dust input box 3 are mounted on a chassis 1. The garbage throwing box 3 is pivotally supported by a throwing box support pin (not shown) above the rear opening 4 at the rear end of the dust storage box 2, and can be tilted around the charging box support pin. ing. Then, by moving the discharge plate (not shown) provided in the dust storage box 2 backward while the dust input box 3 is tilted upward, the dust stored in the dust storage box 2 is discharged. Can be done. Alternatively, the dust container 2 may be dumped to discharge the dust.

  In addition, a dust loading device (not shown) for loading the dust thrown into the dust throwing box 3 through the dust throwing port 5 into the dust containing box 2 is provided inside the dust throwing box 3. . The dust loading device is a compression type that performs dust loading operation with each cycle of reversing, descending, compressing and ascending the compression plate as one cycle, or the dust accumulation by rotating the rotating plate and swinging the pushing plate. It is possible to use a rotating plate type or the like that performs the insertion operation.

  As shown in FIG. 2, the rear surface of the dust input box 3 is provided with a short-shaped dust input port 5 for supplying dust, and the lower edge of the dust input port 5 is rotatably guided to the dust. A plate 7 is provided. Further, the dust input box 3 is provided with a tailgate 6 as an open / close door for opening and closing the dust input port 5. The tail gate 6 is slidable up and down, and can move to the dust inlet 5 to open the dust inlet 5.

  In addition, as shown in FIG. 2, corner bumpers 8 are provided at the rear lower corners of the dust box 3. In this corner bumper 8, a holding structure for a dust guide plate 7 to be described later is housed. Further, a protrusion 9 is provided at the lower center of the tailgate 6. Thus, when traveling with the tailgate 6 lowered, the rearward movement of the dust guide plate 7 is restricted, so that the dust guide plate 7 is reliably held in the standing position during traveling.

  In addition, as shown in FIG. 2, a cross frame 20 extending in the vehicle width direction is provided at the lower rear portion of the dust box 3. An appropriate number of support members 18 are fixed to the upper portion of the cross frame 20 at substantially equal intervals, and the rotation shaft 15 is rotatably supported. The rotating shaft 15 is provided along the vehicle width direction, and is fixed to one end portion of the dust guide plate 7 via a connecting portion 7a (see FIG. 6). Further, as shown in FIG. 3, a plurality of support members 21 provided in the vehicle width direction and a safety bar 23 extending in the vehicle width direction are provided behind the cross frame 20.

  The support member 21 is provided with a rubber member 22 on the upper surface. As shown in FIG. 5, the rubber member 22 absorbs an impact and holds the dust guide plate 7 substantially horizontally when the lower surface of the dust guide plate 7 comes into contact with the lower position of the dust guide plate 7.

  The safety bar 23 is for operating an emergency stop device (not shown) that stops the operation of the dust loading device in an emergency. When the safety bar 23 is pushed forward (turned), the emergency stop device is operated. .

  Further, as shown in FIGS. 3 to 6, a support member 19 and a reinforcing member 31 are provided on the outside of the side wall 30 of the dust box 3. The support member 19 is provided adjacent to the reinforcing member 31 and supports the rotation fulcrum shaft 16. The rotation fulcrum shaft 16 supports the first link member 11 through the cylindrical member 40 so as to be rotatable, and serves as a rotation fulcrum of the first link member 11. As shown in FIG. 6, the reinforcing member 31 supports the bearing 17 together with the side wall 30. The bearing 17 has a support hole 17a for rotatably supporting the rotation shaft 15.

  Next, the main part of the holding structure of the dust guide plate 7 will be described with reference to FIGS.

  As shown in FIGS. 3 to 6, the holding structure for the dust guide plate 7 includes the elastic member 10, the link mechanism 14 including the first link member 11, the second link member 12, and the protruding piece 13, and the above-described structure. And a rotating shaft 15.

  One end of the elastic member 10 is attached to a rod-like member 41 provided on the side wall 30 at the rear lower corner of the outer wall of the dust box 3, and the other end is connected to one end of the connecting member 42. . The connecting member 42 is a rod-like member, and the other end portion is fitted and fixed in a hole portion 11 b provided in one end portion of the first link member 11. The elastic member 10 may be any member as long as it has elasticity such as rubber, spring, gas spring, etc. and can exert urging force.

  The 1st link member 11 is formed in the shape of a "<", and is rotatably supported by the rotation fulcrum shaft 16 in the vicinity of the vertex 11a. The first link member 11 has one end portion connected to the elastic member 10 via a connecting member 42 and the other end portion rotatably connected to the second link member 12 via a connecting member 43.

  The second link member 12 is formed in a straight line. One end of the second link member 12 is rotatably connected to the first link member 11 by a connecting member 43, and the other end is protruded by the connecting member 44. The tip 13 of the piece 13 is rotatably connected.

  As shown in FIG. 6, one end of the projecting piece 13 is fixed to the tip of the rotating shaft 15 and extends in the opposite direction of the dust guide plate 7, and the tip is secondly connected by the connecting member 44. The link member 12 is rotatably connected.

(Operation of the dust guide plate 7 from the standing position shown in FIG. 3 to the lying position shown in FIG. 5)
In the garbage truck 100 having the above-described configuration, the dust guide plate 7 is held at the standing position shown in FIG. 3 when not used. When the dust guide plate 7 is used, the tail gate 6 is first lifted upward, and the dust guide plate 7 is rotated from the standing position shown in FIG. At this time, the protruding piece 13 is rotated forward of the vehicle body about the rotation shaft 15 in conjunction with the rotation of the dust guide plate 7. By the rotation of the projecting piece 13, the second link member 12 connected to the distal end portion of the projecting piece 13 through the connecting member 44 is pushed forward of the vehicle body. Then, the first link member 11 whose other end is connected to the second link member 12 via the connecting member 43 is pushed out toward the front of the vehicle body and counterclockwise around the rotation fulcrum shaft 16. To turn.

  Then, until the position of the dust guide plate 7 shown in FIG. 4, the urging force of the elastic member 10 connected to the first link member 11 acts in the direction of the standing position of the dust guide plate 7, but in FIG. When passing the position (equilibrium position) of the dust guide plate 7 shown, the urging force of the elastic member 10 acts in the direction of the fall position of the dust guide plate 7 via the link mechanism and the rotating shaft 15, and the dust guide plate 7 is automatically In particular, it rotates to the lying position shown in FIG. Here, as shown in FIG. 4, the central axes of the rotation shaft 15, the connecting member 44, and the rotation fulcrum shaft 16 are in a straight line (the central axis of the rotation shaft 15 and the rotation fulcrum shaft 16 in FIG. 4). Straight line connecting with the central axis of the shaft), the direction in which the urging force is applied by the elastic member 10 to the dust guide plate 7 via the link mechanism and the rotation shaft 15 is the standing position, the lying position Therefore, the dust guide plate 7 is kept in an equilibrium state. That is, when the central axis of the connecting member 44 is below the straight line connecting the central axis of the rotary shaft 15 and the central axis of the rotary fulcrum shaft 16 in FIG. The dust guide plate 7 acts in the direction of the standing position via the mechanism 14 and the rotation shaft 15. On the other hand, when the central axis of the connecting member 44 is above the straight line connecting the central axis of the rotary shaft 15 and the central axis of the rotary fulcrum shaft 16 in FIG. The force acts in the direction of the fall position of the dust guide plate 7 via the link mechanism and the rotation shaft 15.

(Operation of the dust guide plate 7 from the lying position shown in FIG. 5 to the standing position shown in FIG. 3)
On the other hand, when the dust guide plate 7 is rotated from the lying position shown in FIG. 5 to the front of the vehicle body about the rotation shaft 15, the projecting piece 13 is interlocked with the rotation of the dust guide plate 7 and the rotation shaft 15. Rotate to the rear of the vehicle around the center. Due to the rotation of the projecting piece 13, the second link member 12 connected to the tip end of the projecting piece 13 via the connecting member 44 is pulled rearward of the vehicle body. Then, the first link member 11 whose other end is connected to the second link member 12 via the connecting member 43 is pulled toward the rear of the vehicle body, and clockwise around the rotation fulcrum shaft 16. Rotate.

  As described above, until the position of the dust guide plate 7 shown in FIG. 4, the urging force of the elastic member 10 connected to the first link member 11 acts in the direction of the collapse position of the dust guide plate 7. 4, when passing through the position (equilibrium position) of the dust guide plate 7 shown in FIG. 4, the biasing force of the elastic member 10 acts in the direction of the standing position of the dust guide plate 7 via the link mechanism 14 and the rotating shaft 15. The guide plate 7 automatically rotates to the standing position shown in FIG.

(Features of this embodiment)
According to the dust guide plate holding structure having the above-described configuration, the dust guide plate 7 is connected to the elastic member 10 via the link mechanism 14 and the rotation shaft 15 at the rotation position closer to the standing position than the equilibrium position of the dust guide plate 7. Is urged toward the standing position by the urging force and automatically rotates to the standing position. In addition, at the rotational position closer to the lying position than the equilibrium position of the dust guide plate 7, the dust guide plate 7 is urged in the lying direction by the urging force of the elastic member 10 through the link mechanism 14 and the rotating shaft 15. It will automatically rotate to the lying position. That is, according to the dust guide plate holding structure configured as described above, the above-described operation is performed. Therefore, even if the dust input box 3 is tilted upward while the dust guide plate 7 is in the lying position. In addition, the dust guide plate 7 can be maintained in a state where it is held in the lying down position.

  Further, according to the above configuration, since the elastic member 10 and one end of the dust guide plate 7 are connected via the link mechanism 14 and the rotating shaft 15, the elastic member is provided on the outer surface of the dust container box 3. It is possible to set the arrangement of 10 and the biasing direction relatively freely. Thereby, while realizing space saving, the standing position and the falling position of the dust guide plate 7 are defined with the equilibrium position (the position of the dust guide plate 7 in FIG. 4) in the rotation range of the dust guide plate 7 as a boundary. The urging force by the elastic member 10 can be transmitted to the dust guide plate 7 via the link mechanism 14 and the rotation shaft 15 in the direction of any position. Further, according to the present embodiment, if the urging force of the elastic member is appropriately adjusted, even if the dust guide plate is once reached to the standing position or the lying position, the standing member is not moved unless a predetermined force is applied. The position or the lying position can be held.

  Further, since the elastic member 10 and the link mechanism 14 are housed in the corner bumper 8, the appearance is smart, and an object hits the elastic member 10 and the link mechanism 14 to provide a holding mechanism for the dust guide plate 7. It is possible to prevent a malfunction.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

DESCRIPTION OF SYMBOLS 1 Chassis 2 Dust storage box 3 Dust input box 4 Back opening part 5 Dust input port 6 Tailgate 7 Dust guide plate 7a Connection part 8 Corner bumper 9 Protrusion part 10 Elastic member 11 First link member 11a Vertex 11b Hole part 12 Second Link member 13 Projection piece 14 Link mechanism 15 Rotating shaft 16 Rotating fulcrum shaft 17 Bearing 17a Support hole 18 Support member 19 Support member 20 Cross frame 21 Support member 22 Rubber member 23 Safety bar 30 Side wall 31 Reinforcement member 40 Cylindrical member 41 Rod-shaped member 42 Connecting member 43 Connecting member 44 Connecting member 100 Garbage truck

Claims (3)

A dust storage box on the chassis, a dust input box connected to the rear end of the dust storage box and having a dust input port at the rear, and a circuit provided in the vehicle width direction at the lower edge of the dust input port. In a dust guide holding structure for a dust collector equipped with a moving shaft and a dust guide plate having one end fixed to the rotating shaft and rotatable with the rotating shaft around the rotating shaft,
An equilibrium position is provided at the lower rear corner of the dust box, and the rotational range of the dust guide plate is from a standing position to a lying position, and is in the turning range from the standing position to the lying position. As a boundary, it comprises an elastic member and a link mechanism that urges the dust guide plate in the direction of the standing position or the lying position, and can hold the dust guide plate in the standing position or the lying position,
In the elastic member, one end is attached to the outer surface of the dust box, the other end is attached to one end of the link mechanism,
In the link mechanism, the other end portion is fixed to the tip end portion of the rotating shaft, and the dust guide plate holding structure for the dust collection vehicle. The link mechanism is
A projecting piece having one end fixed to the tip of the rotating shaft;
A first link member that is formed in a U shape and is rotatable about the bent portion of the U shape, with one end connected to the other end of the elastic member;
A second link member formed in a straight line, having one end rotatably connected to the tip of the protruding piece, and the other end rotatably connected to the other end of the first link member;
The dust guide plate holding structure for a dust collection vehicle according to claim 1, comprising:   The dust guide plate of the dust collector according to claim 1 or 2, wherein a corner bumper that houses and protects the elastic member and the link mechanism is provided at a rear lower corner of the dust bin. Retaining structure.

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