JP2011110965A - Garbage collection vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a garbage collection vehicle enabling the maintenance operation of the drive device disposed in a space under the box to be easily performed. <P>SOLUTION: A front support part 63 and a center support part 64 for detachably fixing a garbage storage box 2 while forming the space Sd under the box are provided to the front part and center part of a vehicle body frame 1b, respectively. A rear support part 65 for supporting the garbage storage box 2 tiltably backward while releasing the fixing of the garbage storage box 2 to the front support part 63 and the center support part 64 is provided to the rear part of the vehicle body frame 1b. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a garbage truck that operates a loading device using a battery as a power source.

A conventional garbage truck has a dust input box behind the dust storage box, and a loading device for loading the dust input into the dust storage box into the dust storage box. Is provided. This loading device performs loading operation by driving a driving device mounted on a vehicle (see, for example, Patent Document 1).
The drive device includes a battery that is a power source and a power unit (an electric motor and a hydraulic pump) that is driven by receiving power supply from the battery, and can operate the loading device with the engine stopped. it can. For this reason, the loading operation can be performed with low noise, and the amount of exhaust gas can be reduced.

However, in the garbage collection vehicle, a drive device such as a battery or an electric motor is disposed near the engine below the body frame. Therefore, depending on the vehicle model, the drive device may interfere with other mounted devices around the engine. There was a problem that the drive device could not be attached.
In view of this, the applicant of the present application has already proposed that a space under the box is formed between the vehicle body frame and the dust storage box, and a driving device is disposed in the space under the box (Japanese Patent Application No. 2009-183751). According to this garbage collection vehicle, since the space under the box exists above the vehicle body frame, the drive device can be arranged without being affected by the vehicle type.

JP 2005-329871 A

By the way, in the so-called discharge plate type garbage collection vehicle configured to discharge the dust stored in the dust storage box to the outside by the discharge plate, the dust storage box is fixed on the vehicle body frame. For this reason, in the discharge plate type garbage truck, when the drive device is disposed in the space under the box formed between the vehicle body frame and the dust storage box, the maintenance work of the drive device disposed in the space under the box is performed. In addition, there was a problem that it was difficult to work because the garbage storage box was in the way.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a garbage truck that can easily perform maintenance work of a driving device disposed in a space under the box.

  In order to achieve the above object, a garbage collection vehicle according to the present invention includes a vehicle body frame extending rearward from a lower part of a cab, a dust storage box disposed above the vehicle body frame, and a rear of the dust storage box. And a dust input box having a dust input port at a rear portion thereof, and an operation of loading the dust input into the dust input box into the dust storage box and being movable forward and backward in the dust storage box. A loading device that performs an operation for discharging the dust in the dust storage box to the outside by the discharged plate, and a drive for operating at least a part of the loading device using the battery as a power source And at least a part of the drive device is a garbage collection vehicle disposed in a space under the box formed between the vehicle body frame and the dust container, and the dust container And it is backward, characterized in that it comprises a tilting support portion that tiltably supported in at least one direction of the right side and left side relative to the vehicle body frame.

  According to the garbage collection vehicle having such a configuration, since the dust storage box is supported to be tiltable with respect to the vehicle body frame, the dust storage box is used when performing maintenance work on the driving device disposed in the space under the box. By tilting, maintenance work can be performed without being disturbed by the dust storage box. Therefore, the maintenance work of the drive device arranged in the space under the box can be easily performed.

  The refuse collection vehicle further includes a support member that is provided on the vehicle body frame and supports the dust storage box in a state in which the space under the box is formed, and the tilting support portion includes the support member. It is preferable to be a part. In this case, the tilting support portion that tiltably supports the dust storage box can be used as a part of the support member that forms the space under the box, so that the number of parts can be reduced and the manufacturing cost can be reduced. be able to.

  Moreover, it is preferable that the said dust storage box has an engaging part for engaging with the external device which lifts up the said dust storage box, when tilting the said dust storage box. In this case, since the dust storage box can be tilted by being lifted by an external device, it is not necessary to provide an actuator for tilting the dust storage box on the vehicle side. Therefore, the manufacturing cost can be effectively reduced.

  Moreover, it is preferable that the said garbage collection vehicle is further equipped with the tilt control means which controls that the said dust storage box tilts more than a predetermined angle. In this case, it is possible to prevent the vehicle from falling backward or to the side by tilting the dust container more than necessary.

  Moreover, it is preferable that the said garbage collection vehicle is further provided with the fall control means which controls that the said dust storage box falls down from the tilted state. In this case, when the dust storage box is tilted, the maintenance of the driving device disposed in the space under the box can be restricted from falling down. Therefore, the maintenance work of the drive device arranged in the space under the box can be performed safely.

  According to the garbage collection vehicle of the present invention, since the drive device arranged in the space under the box can be maintained without being disturbed by the dust storage box, the drive device arranged in the space under the box Maintenance work can be easily performed.

It is the sectional side view which looked at the garbage truck of this invention from the port side. It is a rear view of a garbage truck. It is a hydraulic circuit diagram of a garbage truck. It is the side view which looked at the garbage truck from the starboard side. It is a front view of the switch box in the cab of a garbage truck. It is a control block diagram of a refuse collection vehicle. It is the perspective view seen from the starboard side diagonal back which shows the state which united the drive device in the attachment member. It is a perspective view which shows typically the state which decomposed | disassembled the drive device of FIG. It is a top view of the said refuse collection vehicle. It is sectional drawing seen from the vehicle front which shows typically the arrangement | positioning relationship between a refuse storage box and a battery. FIG. 8 is a front view of FIG. 7. FIG. 8 is a right side view of FIG. 7. It is a side view which shows typically the state which decomposed | disassembled the 2nd box front attachment part. It is a sectional side view which shows the state which made the refuse storage box tilt backward.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side sectional view of a garbage truck according to the first embodiment of the present invention as seen from the port side. In the figure, the garbage collection vehicle 1 includes a cab (cab) 1a, a pair of left and right body frames 1b formed to extend rearward from the lower portion of the cab 1a, and a dust disposed above the body frame 1b. A storage box 2 and a dust input box 3 disposed behind the dust storage box 2 are provided. An opening 2 a is formed on the rear surface of the dust container 2. At the rear part of the dust input box 3, an input port 3a into which dust is input is formed, and a lid 3b that slides the input port 3a up and down to open and close is provided. An opening 3 d for accommodating the dust thrown into the dust throwing box 3 in the dust throwing box 2 is provided at the lower front part of the dust throwing box 3.
The dust input box 3 can be rotated around a fulcrum P provided at the upper portion thereof, and can be opened and closed with respect to the dust container box 2. The dust container 3 closes the dust container 2 at the position indicated by the solid line in the figure, and opens the dust container box 2 to discharge the dust when rotated upward as indicated by the two-dot chain line in the figure. Ready for

  Next, the loading device T provided in the dust box 3 will be described. First, left and right side walls 3c of the dust box 3 are provided with guide rails 4 extending obliquely up and down, and a pair of left and right rollers 6 attached to the slider 5 are obliquely up and down inside the guide rails 4. Can move. The slider 5 is formed by connecting the left and right side members as shown in the figure by a plate or the like (not shown) extending in the vehicle width direction. Further, a pushing plate 8 is rotatably attached to the lower end portion of the slider 5 via a pin 7. The pushing plate 8 is also formed by connecting and connecting left and right members having a side surface shape as illustrated by a plate or the like (not shown) extending in the vehicle width direction.

  On the other hand, the cylinder side end portion of the push cylinder (compression drive means) 9 is attached to the left and right side walls 3 c by pins 10, and the piston side end portion is connected to the upper end portion of the slider 5 by pins 11. On the other hand, the cylinder side end of the press cylinder (pushing drive means) 12 is connected to the pressing plate 8 by a pin 13, and the piston side end is connected to the upper end of the slider 5 by the pin 11. Along with the pushing plate 8, the slider 5 rises obliquely by the extension operation of the push cylinder 9, and descends obliquely by the contraction operation.

  As a result, the pushing plate 8 performs a “reverse” stroke in which the push plate 8 rotates counterclockwise around the pin 7 by the contraction operation of the press cylinder 12 from the original position indicated by the solid line in the drawing. Further, after the reversing process, the pushing plate 8 performs a “primary compression” stroke by the contraction operation of the push cylinder 9, and subsequently a “secondary compression” stroke that rotates clockwise by the extension operation of the press cylinder 12. I do. Further, the pushing plate 8 performs a “pushing” stroke by the extension operation of the push cylinder 9 and returns to the original position.

  A discharge plate 18 is provided inside the garbage storage box 2 so as to be movable in the front-rear direction of the vehicle, and a storage space for storing the dust behind the discharge plate 18 (between the discharge plate 18 and the opening 2a). Sa is formed. One end portion 19a of a telescopic discharge cylinder (discharge plate driving means) 19 is connected to a substantially intermediate portion in the vehicle width direction of an inclined portion 18a described later of the discharge plate 18, and the other end portion 19b is a front wall 2d of the dust container box 2. Is connected to a substantially middle portion in the vehicle width direction. The discharge plate 18 is movable between the rearmost position indicated by the solid line and the foremost position indicated by the two-dot chain line in FIG. When the storage space Sa is empty, the discharge plate 18 is in an initial position slightly ahead of the rearmost position, and the dust loaded in the dust storage box 2 by the push plate 8 is pushed into the push plate 8 and the discharge plate 18. Compressed between. When the loading amount of the dust increases, the discharge cylinder 19 is gradually contracted to move the discharge plate 18 forward, and the accommodation space Sa is expanded. Further, by extending the discharge cylinder 19 and moving the discharge plate 18 rearward, the dust stored in the dust storage box 2 can be discharged to the outside from the opening 2a.

  In the lower part of the discharge plate 18, an inclined portion 18 a inclined downward is formed, and the dust loaded in the accommodation space Sa is moved upward along the inclined portion 18 a by the pushing operation of the pushing plate 8. It is supposed to let you. Thereby, dust can be accommodated without a gap over the entire accommodation space Sa.

FIG. 2 is a rear view of the garbage truck 1. A pair of swing cylinders (input box driving means) 20 disposed at the left and right ends of the dust input box 3 has an upper end attached to the dust storage box 2 side (see FIG. 1) and a lower end attached to the dust input box 3. Yes. When the swing cylinder 20 is extended, the dust throwing box 3 rotates upward to open the dust container 2, and closes when the shrinking action is performed.
In the present embodiment, the loading device T is configured by the push plate 8, the push cylinder 9, the press cylinder 12, the discharge plate 18, the discharge cylinder 19, and the swing cylinder 20.

  FIG. 3 is a hydraulic circuit diagram relating to the push cylinder 9, press cylinder 12, discharge cylinder 19 and swing cylinder 20. The hydraulic circuit includes an oil tank 21, a hydraulic pump 22, pressure control valves 23a to 23e, a push cylinder solenoid valve 24, a press cylinder solenoid valve 25, a discharge cylinder solenoid valve 26, and a swing cylinder solenoid valve 27 (tailgate). The switching valve 28a to 28b, the check valves 29a to 29g, the filters 30a to 30b, the tailgate lock (cylinder) 31, and the pressure sensor 32 are connected as shown in the figure. Yes. The hydraulic pump 22 is driven by an electric motor 45 described later. Further, the pressure sensor 32 constantly detects the operating pressure of the discharge oil passage of the hydraulic pump 22 and provides the detection output to the control unit 47 (described later). The pressure control valves 23a to 23e, the various electromagnetic valves 24 to 27, the switching valves 28a to 28b, and the check valves 29a to 29g constitute a valve body.

  When the pushing plate 8 is stopped at the original position, the push cylinder 9 and the press cylinder 12 are both in the extended state, and the corresponding electromagnetic valves 24 and 25 are in the neutral position. When the solenoid 25s of the press cylinder solenoid valve 25 is energized, "reverse", when the solenoid 25e is energized, "secondary compression", and when the solenoid 24s of the push cylinder solenoid valve 24 is energized, "primary compression", When the solenoid 24e is energized, each process operation of “push” is performed.

  When the discharge plate 18 is stopped at the rearmost position (solid line in FIG. 1), the discharge cylinder 19 is in the most extended state, and the discharge cylinder solenoid valve 26 is in the neutral position. When the solenoid 26e of the discharge cylinder solenoid valve 26 is excited, the discharge cylinder 19 extends. Further, when the solenoid 26s is excited, the discharge cylinder 19 is contracted. When the discharge cylinder solenoid valve 26 is in the neutral position with excitation off, both ports 19e and 19s of the discharge cylinder 19 are sealed. However, if the pressure control valve 23c and the switching valve 28a are moved to the open position, the discharge cylinder 19 can be contracted even when the discharge cylinder electromagnetic valve 26 is in the neutral position, and the discharge plate 18 can be moved forward.

  When the dust box 3 is closed (solid line in FIG. 1), the swing cylinder 20 is in the most contracted state, the swing cylinder solenoid valve 27 is in the neutral position, and the switching valve 28b is in the position shown. When the solenoid 27e of the swing cylinder solenoid valve 27 is excited, the tailgate lock 31 operates in the unlocking direction, the swing cylinder 20 extends, and the dust throwing box 3 rotates upward. When the solenoid 27e is demagnetized and the switching valve 28b is excited, the hydraulic oil in the swing cylinder 20 is returned to the tank 21 through the switching valve 28b and the swing cylinder electromagnetic valve 27 by the dead weight of the dust throwing box 3. As a result, the swing cylinder 20 contracts and the dust box 3 rotates downward. When the solenoid 27s of the swing cylinder solenoid valve 27 is energized after the dust throwing box 3 reaches the downward rotation end, the tailgate lock 31 is locked and the dust throwing box 3 is locked. Thereafter, the solenoid 27s is demagnetized, but the locked state of the tailgate lock 31 is maintained by the check valve 29g.

The pressure control valves 23a to 23e, the electromagnetic valves 24 to 27, the switching valve 28a, the check valves 29a to 29g, the filter 30b, and the pressure sensor 32 are built in the valve block 33.
FIG. 4 is a side view of the garbage truck as viewed from the starboard side. The valve block 33 is suspended and fixed to a substantially central portion in the front-rear direction of the bottom plate 2 b of the dust container box 2. The valve block 33 is connected to a plurality of hydraulic pipes 40 for supplying and discharging hydraulic oil to and from the cylinders 9, 12, 19, and 31.

  These hydraulic pipes 40 are arranged to extend rearward from the valve block 33 along corners 2e (see also FIG. 10) formed by a bottom plate 2b and a support main body 62 (described later). And bent upward from the rear end of the bottom plate 2b, and extends obliquely upward and forward along a corner 2h formed by the side wall 2f of the dust container 2 and the stiffener 2g that reinforces the rear edge of the dust container 2. And a piping part 40b arranged in this manner. Thus, since the hydraulic piping 40 is disposed along the corners 2e and 2h of the refuse storage box 2, the hydraulic piping 40 and the dust storage box 2 during traveling of the vehicle and operation of the loading device T are provided. It is possible to suppress resonance of the vibration sound.

FIG. 5 is a plan view showing the switch box SB1 provided in the cab 1a. In the figure, the switch box SB1 is provided with a main switch 34, a tailgate switch 35, a discharge plate switch 36, a scraping switch 37, a main lamp 38, and a lock lamp 39.
The main switch 34 is a switch that can be held at any of the “loading”, “OFF”, and “discharge” positions, and the loading operation can be performed by operating from the “OFF” to the “loading” position. Is possible. At the “discharge” position, the discharge cylinder 19 and the swing cylinder 20 can be operated.

When the tailgate switch 35 is operated “up”, the dust input box 3 is raised, and when it is operated “down”, the dust input box 3 is lowered. In addition, it is a type of switch that returns to the neutral position of “OFF” when the hand is released. When the discharge plate switch 36 is operated to “discharge”, the discharge cylinder 19 extends and the discharge plate 18 retracts to the rearmost position, and when operated to “return”, the discharge plate 18 returns to the initial position. In addition, it is a type of switch that returns to the neutral position of “OFF” when the hand is released.
The scraping switch 37 is a selection switch of “automatic” or “manual”, and in the “automatic” position, when the garbage throwing box 3 is rotated to the upper end, an operation similar to loading is automatically performed. The dust remaining at the bottom of the input box 3 can be discharged.
The main lamp 38 is lit when each switch operation of the switch box SB1 is possible. The lock lamp 39 is lit when the tailgate lock 31 is locked.

  On the other hand, in FIG. 2, switch boxes SB2 and SB3 are provided at the rear portions of the left and right side walls 3c of the dust box 3, respectively. An operation selection switch 42 for selecting either “continuous cycle” or “1 cycle” operation mode as the operation of the push-in plate 8 is loaded on the side surface of the switch box SB2, and loaded in each operation mode on the front. A loading switch 43 for starting the operation and a stop switch 44 for stopping the continuous cycle operation are provided. The other switches are switches that are used only in an emergency and will not be described in detail. The stop switch 44 is also provided in the right switch box SB3.

  FIG. 6 is a control block diagram of the garbage truck 1. The hydraulic pump 22 is driven by an electric motor 45, and the electric motor 45 is driven by the output of the control unit 47 using a dedicated battery 46 as a power source. A power unit 49 is constituted by the hydraulic pump 22 and the electric motor 45. The battery 46 is charged with power supplied from an external commercial power supply via the charger 50. In addition, it is possible to perform six collection operations (one collection operation is an operation of performing one cycle operation of the loading device T 100 times and discharging the discharge plate 18 once) by one charge. A certain amount of electric power can be stored. The charger 50 includes a charging control unit 50a that controls charging of the battery 46, and a rectifying unit 50b that converts AC power supplied from a commercial power source into DC power, and connects the power cable 51 from the commercial power source to the connector. By connecting to 52, power is supplied.

  The connector 52 is also connected to an AC / DC converter 53 housed in a control box 56 (described later). The AC / DC converter 53 converts AC power supplied from a commercial power supply via the connector 52 into DC power, and supplies the DC power to the control unit 47. Thereby, the control part 47 can also drive the electric motor 45 directly without the battery 46 by the electric power supply from a commercial power source. The AC / DC converter 53 may be built in the control unit 47.

  The control unit 47 is housed in a control box 56 which is a housing unit, and is energized via an engine start key switch 55 and a main switch 34 provided in the cab 1a. A control switch 57 for connecting / disconnecting power supply to the control unit 47 is provided in the control box 56. The control switch 57 is normally kept in an on state. In an emergency such as when the control unit 47 breaks down, the key switch 55 is turned off to switch the control switch 57 to an off state. The power supply from the AC / DC converter 53 (commercial power supply) to the control unit 47 can be cut off. The control switch 57 may be switched by a dedicated operation switch in addition to the key switch 55.

  A maintenance unit 48 for performing maintenance work on the control unit 47 is housed in the control box 56. The control unit 47, the maintenance unit 48, the AC / DC converter 53, the control box 56, and the control switch 57 constitute a control device C. Further, the oil tank 21, the battery 46, the power unit 49, the charger 50, the connector 52, and the control device C constitute a drive device 58 of the present invention. In addition to the above, the valve block 33 can be included as a constituent member of the driving device 58.

  The solenoids 24e to 27e, 24s to 27s and the switching valves 28a to 28b in the valve block 33 are excited and demagnetized by the control unit 47. The names of blocks such as solenoids are displayed by function. The control unit 47 is supplied with input signals from the respective function switches (shown as SW; the same applies hereinafter) 34 to 37, 42 to 44, the pressure sensor 32, a thermometer 59 and a rotation speed sensor 60 described later. Various lamps 38 to 39 are turned on by the output of the control unit 47.

  A thermometer 59 that detects the temperature of the electric motor 45 and a rotation speed sensor 60 that detects the rotation speed of the electric motor 45 are attached to the electric motor 45. Detection signals from the thermometer 59 and the rotational speed sensor 60 are given to the control unit 47, and the output of the electric motor 45 is controlled by the control unit 47 so that the electric motor 45 is not damaged due to a temperature rise.

  In FIG. 1, a support member 61 is provided on the vehicle body frame 1b to support the bottom of the dust container 2 in a predetermined height position so as to be tiltable backward with respect to the vehicle body frame 1b. The support member 61 includes a support main body portion 62 disposed along the bottom of the dust container box 2, a front support portion 63 disposed below the front end portion, the central portion, and the rear end portion of the support main body portion 62. A support part 64 and a rear support part (tilting support part) 65 are provided.

  The support main body 62 is composed of a pair of left and right channel members formed extending in the front-rear direction, and the upper surface of each support main body 62 is fixed to the bottom plate 2b of the dust container 2 by welding (see FIG. 10). . The length of each support body 62 in the front-rear direction is formed substantially the same as the length in the front-rear direction of the bottom plate 2 b of the dust container box 2. In addition, the arrangement interval in the vehicle width direction of each support main body 62 is formed substantially the same as the arrangement interval in the vehicle width direction of each vehicle body frame 1b. Further, a concave portion 62a that opens downward is formed in the lower surface front portion of the support main body portion 62 (see FIG. 10).

  1 and 14, the rear support portion 65 is configured by a hinge mechanism, and is fixed to the rear end portion of the upper surface of each vehicle body frame 1 b by welding, and the rear end of the lower surface of each support body portion 62. It has a movable hinge 65b that is suspended and fixed to the portion by welding, and a hinge pin 65c that rotatably connects the movable hinge 65b to the fixed hinge 65a. Thereby, when carrying out maintenance work of the drive device 58 disposed in the box lower space Sd, which will be described later, the dust container box 2 can be tilted backward with respect to the body frame 1b around the hinge pin 65c of the rear support portion 65. it can. The detailed structure of the front support part 63 and the center support part 64 will be described later.

  An engaging portion 2i for engaging a hook 98a of a crane 98, which is an external device, is fixed to a central portion in the vehicle width direction of the front portion of the upper surface of the dust container 2. The engaging part 2i consists of a retaining ring formed in an arc shape. In a state where the hook 98a is engaged with the engaging portion 2i, the dust storage box 2 can be tilted backward by lifting the front portion of the dust storage box 2 upward by the crane 98.

  Tilt restricting means 67 for restricting the dust storage box 2 from tilting backward by a predetermined angle or more is provided at the bottom of the dust throwing box 3. The tilt regulating means 67 regulates the backward tilting of the dust container 2 by a predetermined angle or more by causing the grounding portion 67a fixed to the rear side of the bottom of the dust throwing box 3 to contact the ground. The grounding portion 67a is formed of, for example, a synthetic resin material in a trapezoidal shape in a side view and extends in the vehicle width direction (see FIG. 2). The predetermined angle is set for each vehicle in consideration of the position of the center of gravity of the vehicle. In the present embodiment, the predetermined angle is set to about 30 degrees.

Between the central support portion 64 and the rear support portion 65, a fall regulation means 68 is provided for regulating the dust storage box 2 from falling from the rearward tilted state. The overturning restricting means 68 includes a fixed portion 68a fixed on the vehicle body frame 1b, an arm portion 68b whose base is rotatably attached to the fixed portion 68a, and an engagement fixed to the front portion of the arm portion 68b. Part 68c. The engaging portion 68c can be engaged with an engaged portion 62b (see FIG. 1) formed in a concave shape on the lower surface of the support main body portion 62. Therefore, as shown in FIG. 14, the dust storage box 2 is restricted from falling down by engaging the engaging portion 68 c with the engaged portion 62 b while the dust storage box 2 is tilted rearward. Can do. Thereby, the refuse storage box 2 can be held in a tilted state by the tilting restricting means 67 and the tilting restricting means 68.
When the tilt restricting means 67 is not used, that is, when the dust container 2 is in a fallen state, the tilt restricting means 67 is a space surrounded by the support main body 62, the central support 64, the vehicle body frame 1b, and the rear support 65. Stored in (dead space).

  The support member 61 is formed with a recess 66 that opens downward by the recess 62 a formed on the lower surface of the support main body 62, the rear surface of the front support portion 63, and the front surface of the center support portion 64. . A box lower space Sd is formed between the recess 66 and the upper surface of the vehicle body frame 1b. Further, a box front space Sd (cab back space) is formed between the front surface of the front support portion 63 and the front wall 2d of the dust container box 2 and the rear wall of the cab 1a.

In the box lower space Sd and the box front space Sf, all components of the drive device 58 are arranged in a united state. Hereinafter, the arrangement of each component of the driving device 58 and its mounting structure will be described.
FIG. 7 is a perspective view of the driving device 58 seen from the obliquely rear side of the starboard side showing a unitized state, and FIG. 8 is a perspective view schematically showing a state in which the driving device 58 is disassembled. FIG. 9 is a plan view of the garbage truck 1.
7 and 8, the constituent members of the drive device 58 are all attached to and integrated with a common mounting member 71. The attachment member 71 is attached with a box lower attachment portion 72 to which a part of the drive device 58 arranged in the box lower space Sd is attached and the other part of the drive device 58 arranged in the box front space Sf. And a box front mounting portion 73.

  The lower box mounting portion 72 includes a pair of left and right base frames 72a made of square pipes extending in the front-rear direction, and a mounting frame 72b made of a pair of front and rear channel members fixed at both inner surfaces of the left and right base frames 72a. And an auxiliary frame 72c made of an angle member having both ends fixed to the rear end of each upper surface of the left and right base frames 72a. The battery 46 is placed on the upper surface of each placement frame 72b.

  The battery 46 is formed in a rectangular shape in a plan view of FIG. 9 and is arranged such that its longitudinal direction extends in the vehicle width direction (left-right direction). A plurality of projecting portions 46a projecting forward and rearward are integrally formed on the front surface and the rear surface of the battery 46, respectively. On the upper surface of these projecting portions 46a, a fixed frame 46b formed in a U-shape is respectively bolted ( (Not shown). Each fixed frame 46b is fixed to the front and rear mounting frames 72b by bolts (not shown). As shown in FIG. 8, the fixing positions of the projecting portion 46a, the fixing frame 46b, and the base frame 72b by these bolts are the same on the front side and the rear side of the battery 46. This is indicated by a dotted line arrow.

FIG. 10 is a cross-sectional view as seen from the front of the vehicle schematically showing the positional relationship between the dust container 2 and the battery 46.
Convex portions 46 c and 46 d are formed on the left and right end portions of the upper surface of the battery 46, and the convex portions 46 c and 46 d are introduced into the concave portions 62 a of the left and right support main body portions 62. Further, a concave portion 46e is formed in the central portion of the upper surface of the battery 46 in the left-right direction. The lower part of the reinforcing part 2b1 made of a channel material protruding from the bottom plate 2b of the dust container 2 is introduced into the recess 46e. A cylindrical pipe 91 for electric wiring is disposed in the recess 46e, and both front and rear ends of the pipe 91 are fixed to a fixing frame 46b of the battery 46 by bolts and nuts (see FIG. 7). ).

Further, hydraulic hoses 92 and 93 for connecting the oil tank 21 and the hydraulic pump 22 to the valve block 33 are disposed in the recess 46e. The hydraulic hoses 92 and 93 are disposed when the dust storage box 2 is tilted rearward with respect to the vehicle body frame 1b, and the oil tank 21 and the hydraulic pump 22 on the fixed side (vehicle body frame 1b side) and the movable side (dust storage box 2). Side) is set to such a length that the connection with the valve block 33 can be maintained. Specifically, the hydraulic hoses 92 and 93 extend the hydraulic hoses 92 and 93 from the oil tank 21 and the hydraulic pump 22 to the rear support portion 65 along the recess 46e and the vehicle body frame 1b, and the hinge pin 65c. The length is set such that it can be connected to the valve block 33 by winding and extending along the support main body 62 forward of the vehicle.
A pair of left and right hydraulic pipes 94 that connect the discharge cylinder 19 and the valve block 33 are disposed below the bottom plate 2b. However, the hydraulic pipes 94 may be disposed in the recess 46e.

7 and 8, the charger 50 is mounted on the upper surface of the rear mounting frame 72b and the upper surface of the auxiliary frame 72c. On the rear surface of the charger 50, a protruding portion 50c protruding backward is integrally formed, and the protruding portion 50c is fixed to the auxiliary frame 72c by a bolt (not shown).
The connector 52 connected to the charger 50 is attached to the upper surface of the base frame 72a behind the center support portion 64 on the port side with the connection port 52a facing outward (see FIG. 12). Therefore, the power cable 51 from the external power source can be easily connected to the connector 52 from the port side of the vehicle. The connector 52 may be attached to the rear surface of the center support portion 64.

FIG. 11 is a front view of the driving device 58 of FIG. 7 as viewed from the front.
The box front mounting portion 73 includes a first box front mounting portion 74 disposed on the starboard side of the box front space Sf and a second box front mounting portion 75 disposed on the port side of the box front space Sf. Yes.
The first box front mounting portion 74 is fixed to a base frame 74a made of a square pipe extending in the front-rear direction, a support frame 74b erected on the upper surface of the base frame 74a, and a substantially central portion in the vertical direction of the support frame 74b. And an L-shaped mounting frame 74c (see FIG. 8), and reinforcing frames 74d and 74e for reinforcing the supporting frame 74b and the mounting frame 74c, respectively.

  The base frame 74a is integrally formed with the front end of the base frame 72a on the right side of the box lower mounting portion 72 (see FIG. 8). Accordingly, the first box front mounting portion 74 is provided integrally with the box lower mounting portion 72. The mounting frame 74c is disposed in a state offset to the right side with respect to the base frame 74a, and is fixed to the horizontal surface by a belt-like mounting frame 74f in a state where the oil tank 21 is mounted. . One end of the reinforcing frame 74d is fixed to the base frame 74a, and the other end is fixed to the horizontal surface of the mounting frame 74c. The reinforcing frame 74e has one end fixed to a base frame 75a (described later) and the other end fixed to a substantially central portion in the vertical direction of the support frame 74b.

  The oil filter 30 a is connected to the inner upper portion of the oil tank 21. Further, the other end of a hydraulic pipe 95 having one end connected to the hydraulic pump 22 is connected to the inner lower portion of the oil tank 21. Further, a step 96 is disposed on the upper surface and the outer surface of the oil tank 21, and both upper and lower ends thereof are fixed to the support frame 74b and the mounting frame 74c. As a result, the operator ascends step 96 and moves to the space in front of the box Sf so that the inspection container (not shown) provided in the front wall 2d of the dust storage box 2 can enter the inside of the dust container 2 and the discharge cylinder 19. Can be easily checked (see FIG. 4).

8 and 11, the second box front mounting portion 75 includes a base frame 75a made of a square pipe extending in the front-rear direction, a support frame 75b made of a pair of front and rear angle members fixed to the upper surface of the base frame 75a, And a mounting frame 75c made of an angle member disposed above each support frame 75b.
12 is a right side view of the driving device 58 of FIG.
The base frame 75 a is integrally formed with the front end portion of the base frame 72 a on the left side of the box lower attachment portion 72. Accordingly, the second box front mounting portion 75 is integrally provided on the box lower mounting portion 72.

FIG. 13 is a side view schematically showing a state in which the second box front mounting portion 75 is disassembled.
An anti-vibration rubber 75d, which is an elastic body, is disposed between the support frame 75b and the mounting frame 75c. The anti-vibration rubber 75d is fixed on the horizontal surface of the support frame 75b by bolts 75e. Further, the support frame 75b and the mounting frame 75c are arranged in a state where the longitudinal direction is offset to the left side with respect to the base frame 75a (see FIG. 11).

  The power unit 49 and the control box 56 are attached to the upper surfaces of the left and right mounting frames 75c. Specifically, as shown in FIG. 8, the electric motor 45 is fixed to a central portion in the longitudinal direction of each mounting frame 75 c by a bolt (not shown), and one end portion (see FIG. 8 is fixed to the hydraulic pump 22 by bolts (not shown). In addition, four leg portions 56a of the control box 56 are disposed at the left and right ends of each mounting frame 75c so as to surround the front, rear, left and right of the electric motor 45, and as shown in FIG. Each leg portion 56a is fixed to the mounting frame 75c by a bolt 75f and a nut 75g fixed to the upper end of 75d.

  As shown in FIG. 11, the vertical length of each leg portion 56a is formed longer than the height of the electric motor 45, and the electric motor 45 and the control box 56 can be placed without interfering with each other. Can be fixed on top. Further, since the control box 56 is supported by the anti-vibration rubber 75d, it is possible to prevent the equipment housed in the control box 56 from being damaged by vibrations during traveling of the vehicle.

In FIG. 8, the front support portion 63 and the center support portion 64 of the support member 61 are attached to the attachment member 71 together with the constituent members of the drive device 58 in a unitized state.
The front support portion 63 is disposed at the front end portion of the base frame 72a of the box lower mounting portion 72, and includes a support frame 63a made of a pair of left and right angle members fixed to the upper surface of each base frame 72a by welding, The support frame 63a has a flat plate-like mounting frame 63b whose left and right ends are fixed to the upper end of the support frame 63a.

  The center support portion 64 is disposed at the rear end portion of the base frame 72a of the box lower mounting portion 72 so as to straddle the auxiliary frame 72c in the front-rear direction and fixed to the upper surface of each base frame 72a by welding. And a pair of left and right flat plate mounting frames 64b fixed to the upper end of each support frame 64a.

The attachment member 71 is fixed to the left and right vehicle body frames 1b by securing means 76. The lashing means 76 fixes a pair of front lashing portions 77 that fix the front portion of the attachment member 71 to the upper surface of each vehicle body frame 1b, and a rear portion of the attachment member 71 to the upper surface of each vehicle body frame 1b. It consists of a pair of rear lashing portions 78.
The front securing portion 77 fixes the base frames 74a and 65a of the box front mounting portions 74 and 75 to the vehicle body frame 1b by U bolts 77a and nuts 77b, respectively. The rear tying portion 78 is clamped with U-shaped fastening brackets 78c and 78d fixed to the outer surface of the center support portion 64 and the outer surface of the vehicle body frame 1b by bolts 78a and nuts 78b. The support portion 64 is fixed to the vehicle body frame 1b.

In FIG. 12, the lower surface of the support main body 62 is placed on the mounting frames 63 b and 64 b of the front support portion 63 and the central support portion 64, and the support main body portion 62 is fastened by fastening means 80 and 81. The front support part 63 and the center support part 64 are detachably fixed.
The fastening means 80 fastens the U-shaped fastening brackets 80a and 80b fixed to the outer surface of the support main body 62 and the outer surface of the support frame 63a of the front support portion 63 by bolts 80a and nuts 80b. Thus, the front end portion of the support main body portion 62 is fixed to the front support portion 63.
The fastening means 81 fastens the U-shaped fastening brackets 81a and 82b fixed to the outer surface of the support main body 62 and the outer surface of the support frame 64a of the central support 64 by bolts 81a and nuts 81b, respectively. Thus, the central portion of the support main body portion 62 is fixed to the central support portion 64.

Next, an operation of mounting the support member 61, the driving device 58, and the dust container 2 on the vehicle body frame 1b when manufacturing the garbage truck 1 will be described.
First, as shown in FIG. 8, the drive device 58, the front support portion 63 and the center support portion 64 of the support member 61 are mounted in advance on the mounting member 71 to integrally form a unit (see FIG. 7). Further, the support body 62 of the support member 61 is fixed to the bottom plate 2b of the dust container 2 by welding, and the movable hinge 65c of the rear support 65 is fixed to the lower surface of the rear end of the support body 62 by welding ( 1 and 10). The movable hinge 65c may be fixed to the support main body 62 in advance before fixing the support main body 62 to the bottom plate 2b.

Next, the unitized mounting member 71 is placed on the upper surface of the front part of the body frame 1b, and as shown in FIG. 12, the front tying part 77 and the rear tying part 78 of the tying means 76 The front and rear of the attachment member 71 are fixed on the vehicle body frame 1b. Further, the fixing hinge 65a of the rear support portion 65 is fixed to the upper surface of the rear portion of the vehicle body frame 1b by welding (see FIG. 1).
Subsequently, the refuse storage box 2 is mounted above the vehicle body frame 1b. Specifically, as shown in FIG. 1, a movable hinge 65b fixed to the dust container 2 side is connected to a fixed hinge 65a on the vehicle body frame 1b side by a hinge pin 65c. Next, the support main body portion 62 on the dust container 2 side is placed on the upper surfaces of the front support portion 63 and the central support portion 64 on the vehicle body frame 1b side. In this state, the support body 62 is fastened to the upper support 63 and the central support 64 by the fastening means 80 and 81. Thereby, the mounting operation is completed.

Next, a description will be given of an operation of tilting the dust container box 2 backward when performing a maintenance operation of the driving device 58 disposed in the box lower space Sd.
First, the hook 98a of the crane 98 is engaged with the engaging portion 2i on the upper surface of the dust container box 2. Next, in FIG. 12, the fastening of the bolts 80a and 81a and the nuts 80b and 81b of the fastening means 80 and 81 is released, respectively, and the fixing of the support body 62 to the front support 63 and the center support 64 is released. When the front part of the dust container 2 is lifted by the crane 98 from this state, the dust container 2 is tilted backward.

When the bottom part of the dust container 3 approaches the ground due to the rearward tilt of the dust container 2, the grounding part 67a of the tilt restricting means 67 is grounded as shown in FIG. 14, and the rear tilt of the dust container 2 is stopped. . Next, the arm portion 68b of the overturning restriction means 68 is manually turned upward to engage the engaging portion 68c with the engaged portion 62b on the dust container box 2 side. Thereby, the dust container 2 is held in a state of being tilted backward, and maintenance work for the battery 46, the charger 50, and the like disposed in the box lower space Sd can be performed.
After the maintenance work is completed, the refuse storage box 1 in the tilted state is laid down and returned to the travelable state shown in FIG.

  According to the refuse collection vehicle 1 of the present embodiment configured as described above, the dust container 2 is supported by the tilt support portion (rear support portion 65) so as to be tiltable backward with respect to the vehicle body frame 1b. When performing maintenance work for the battery 46 and the like disposed in the box lower space Sd, the maintenance work can be easily performed without being disturbed by the dust storage box 2 by tilting the dust storage box 2 backward. . Therefore, the maintenance work of the driving device 58 arranged in the box lower space Sd can be easily performed. This is particularly effective when the heavy battery 46 is replaced.

In addition, since the tilting support part (rear support part) 65 that supports the dust container 2 so as to tilt backward is also used as a part of the support member 61 that forms the box lower space Sd, the number of parts can be reduced. Manufacturing cost can be reduced.
In addition, since the engaging portion 2i is lifted by the crane 98, which is an external device, the dust storage box 2 is tilted backward, so that it is not necessary to provide an actuator for tilting the dust storage box 2 on the vehicle side. . Therefore, the manufacturing cost can be effectively reduced.
Further, when the refuse storage box 2 is tilted backward, the tilt control means 67 restricts the dust storage box 2 from tilting backward by a predetermined angle or more, so that the dust storage box 2 tilts more than necessary. Thus, the vehicle can be prevented from falling backward.

  Further, since the fall regulation means 68 regulates the falling of the dust container 2 from the tilted state, the maintenance work of the driving device 58 in the lower space Sd is performed with the dust container 2 tilted. When going, it can control that the refuse storage box 2 falls down. Therefore, the maintenance work of the driving device 58 arranged in the box lower space Sd can be performed safely. Further, the lodging regulation means 67 can be stored in a dead space between the center support part 64 and the rear support part 65 as shown in FIG. There is no need to provide a separate storage space. Therefore, the entire vehicle can be configured compactly.

The present invention is not limited to the above embodiment. For example, the tilting support portion (rear support portion 65) is configured by a hinge mechanism, but the support main body portion 62 on the dust container 2 side moves backward on a guide roller rotatably provided on the vehicle body frame 1b side. It may be a mechanism for tilting the dust container 2 backward while sliding.
Moreover, although the tilting support part supports the dust container 2 via the support main body part 62, the tilt support part may directly support the bottom plate 2 b of the dust container 2. This support configuration is particularly effective when the box lower space Sd is formed between the dust container 2 and the vehicle body frame 1b without using the support main body 62.

Further, the tilting support portion is also used as a part of the support member 61 (rear support portion 65), but can be provided separately from the rear support portion 56.
Further, the tilting support part supports the dust container 2 so that it can tilt backward with respect to the vehicle body frame 1b. However, the drive device 58 is biased to one side in the vehicle width direction of the box lower space Sd. If it is, it can be supported so as to be tiltable to the right side or the left side as the other side. In this case, the right or left front support part 63, the center support part 64, and the rear support part 65 may be configured as a hinge mechanism, and the tilt restricting means 67 may be provided on the side wall 2f of the dust container 2 or the like.

In addition to the crane 98, a jack can be applied to the external device. In this case, a jack may be disposed between the vehicle body frame 1b and the support main body 62, and the front portion of the dust container 2 may be lifted by this jack.
Moreover, although the refuse storage box 2 is tilted by the external device (crane 98), it may be tilted by an actuator such as a hydraulic cylinder provided on the vehicle side. However, it is preferable to tilt by an external device from the viewpoint of reducing the manufacturing cost.
Moreover, although the hollow part 66 which forms box lower space Sd is formed of the supporting member 61, in the state which the discharge | emission plate 18 moved to the foremost position, the dust storage located ahead of the lower part of the inclination part 18a It is also possible to form on the bottom plate 2b of the box 2. In this case, the dead space in front of the discharge plate 18 can be effectively used. Further, since the support member 61 for forming the box lower space Sd is not necessary, the number of parts can be reduced.

Further, the fastening means 80 and 81 detachably fix the support main body 61 to the front support 63 and the central support 64, but the support main body 61 is attached to the front support 63 and the central support 64. The front support part 63 and the center support part 64 can also be fixed to the attachment member 71 (base frame 72a) so as to be detachable. In this case, the rear lashing portion 78 may tie the base frame 72a to the vehicle body frame 1b instead of the central support portion 64.
Further, the ground contact portion 67a of the tilt regulating means 67 is constituted by a single member extending in the vehicle width direction, but may be constituted by a plurality of members arranged in the vehicle width direction. Further, the tilt restricting means 67 can be constituted by a jack having a ground roller.

Further, a part of the drive device 58 is disposed in the box lower space Sd. For example, the lower box space Sd is formed by forming the recess 66 long in the vehicle front-rear direction so as to widen the box lower space Sd. Alternatively, the entire drive device 58 may be disposed.
Moreover, although the movable hinge 65b of the support main body part 62, the front support part 63, the center support part 64, and the rear support part 65 is each comprised as a separate member, these can also be integrally formed.
Moreover, although the hollow part 66 is formed of the support main body part 62, the front support part 63, and the center support part 64, it can also be formed only by the support main body part 62 formed in bulk. In this case, a part of the support main body 62 may be cut out to form the recess 66, and the box lower space Sd may be formed by the recess 66 and the vehicle body frame 1b.
The box lower space Sd is formed by the vehicle body frame 1b and the recessed portion 66 opened downward. However, the box lower space Sd can be formed by forming a through hole in the support member 61.

Further, the box lower space Sd is formed between the front support part 63 and the center support part 64, but it can also be formed between the center support part 63 and the rear support part 65. For example, the front support portion 63 is disposed slightly rearward of the arrangement of the above embodiment to form a box lower space Sd in front of the front support portion 63, or the rear support portion 65 is slightly forward of the arrangement of the above embodiment. It is also possible to form the lower box space Sd behind the rear support portion 65 by arranging them in the rear. In the former case, since the box lower space Sd and the box front space Sf are formed as continuous spaces, the degree of freedom of arrangement of the drive devices 58 in these spaces can be increased.
The box lower space Sd is formed below the lower surface of the support main body 62, but is outside or inside in the vehicle width direction of the support main body 62, above the lower surface, and in the dust container box 2. The space below the bottom plate 2b may be a box lower space Sd.

The drive device 58 disposed in the box lower space Sd is attached to the box lower mounting portion 72 before the dust container 2 is mounted on the support member 61, but is attached after the dust container box 2 is mounted. You may be made to do.
Further, the drive devices 58 arranged in the box lower space Sd and the box front space Sf are attached to the vehicle body frame 1b via the box lower attachment portion 72 and the box front attachment portion 73, respectively. Of these, the drive device 58 disposed in one or both of the spaces may be directly attached to the upper surface of the vehicle body frame 1b.

In addition, the fixed hinge 65a of the rear support portion 65 is fixed on the vehicle body frame 1b. For example, the base frame 72a of the lower box mounting portion 72 is formed to extend rearward to be fixed to the upper surface of the base frame 72a. It is also possible to do. In this case, since the fixed hinge 65a can be unitized with the box lower mounting portion 72, the mounting operation to the vehicle can be further performed without individually mounting the fixed hinge 65a and the box lower mounting portion 72 to the vehicle. It can be done easily.
Moreover, although the bottom plate 2b of the dust container 2 is formed in a flat plate shape, a concave portion that opens downward is formed at both ends in the vehicle width direction, and the convex portions 46c and 46d of the battery 46 are accommodated in the concave portion. Is also possible. In this case, it is possible to more effectively suppress the increase in the overall height of the dust container box 2. Furthermore, if the concave portion is formed in the bottom plate 2b in front of the lower portion of the inclined portion 18a in a state where the discharge plate 18 has moved to the foremost position, the concave portion can be disposed in a dead space in front of the discharge plate 18. Therefore, it is possible to suppress an increase in the overall height of the dust container box 2 without reducing the storage space Sa in the dust container box 2 in front of the discharge plate.

Moreover, although the valve block 33 is being fixed to the dust container 2 side, you may be fixing to the vehicle body frame 1b side. In this case, if the connection between the valve block 33 and each cylinder 9, 12, 19, 31 is a flexible hydraulic hose instead of the hydraulic pipe 40, the above connection state is maintained when the dust container 2 is tilted. Can be maintained.
The drive device 58 operates all the cylinders 9, 12, 19, and 20 constituting the loading device T, but it is sufficient that at least one cylinder is operated.
Moreover, although the loading apparatus T is a press type which loads dust only with the pushing plate 8, it may be a rotating plate type which loads dust with the cooperation of the pushing plate and the rotating plate. In this case, the pushing plate, the rotating plate, and a cylinder and / or a motor for operating them constitute a part of the loading device T.

DESCRIPTION OF SYMBOLS 1 Dust collection vehicle 1a Driver's cab 1b Car body frame 2 Dust storage box 2i Engagement part 3 Dust input box 3a Input port 18 Discharge plate 46 Battery 58 Drive device 61 Support member 65 Rear support part (tilting support part)
67 Tilt restricting means 68 Lodging restraining means Sd Space under the box T Loading device

Claims (5)

A vehicle body frame extending rearward from the bottom of the cab;
A refuse storage box disposed above the body frame;
A dust input box disposed behind the dust storage box and having a dust input port at the rear;
The operation of loading the dust thrown into the dust container into the dust container is performed, and the dust in the dust container is discharged to the outside by a discharge plate provided in the dust container so as to be movable back and forth. A loading device that performs operations for,
A driving device that has a battery and operates at least a part of the loading device using the battery as a power source;
At least a part of the driving device is a garbage collection vehicle disposed in a space under the box formed between the vehicle body frame and the dust storage box,
A garbage collection vehicle comprising a tilt support portion that supports the dust container box so as to be tiltable in at least one of a rear side, a right side, and a left side with respect to the body frame. A support member which is provided on the vehicle body frame and supports the dust storage box in a state where the space under the box is formed;
The garbage truck according to claim 1, wherein the tilting support part is a part of the support member.   3. The garbage collection vehicle according to claim 1, wherein the dust container has an engaging portion for engaging an external device that lifts the dust container when the dust container is tilted.   The refuse collection vehicle according to any one of claims 1 to 3, further comprising a tilt restricting means for restricting the dust storage box from tilting more than a predetermined angle.   The refuse collection vehicle according to any one of claims 1 to 4, further comprising a fall regulation unit that regulates the fall of the refuse storage box from a tilted state.

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