JP2011225095A - Working vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a working vehicle which can suppress any breakage of a holding part of a storage box arranged in a space between a driver's cabin and a packing box caused by the oscillation during the travel of the vehicle.SOLUTION: In the working vehicle, a driver's cabin 1a above a vehicle body frame 1b, a cargo box 2 arranged behind the driver's cabin 1a on the rear side of the vehicle, and a storage box 56 arranged between the driver's cabin 1a and the cargo box 2 are disposed. A lower part of the storage box 56 is held by the vehicle body frame via a second box front mounting part 75 (a lower holding part), and an upper part of the storage box is held by the cargo box via an upper part holding part 90.

Description

  The present invention relates to a work vehicle that fixes a storage box between a cargo box and a cab.

  A conventional work vehicle has a driver's cab (driver's cab) arranged at the front of the body frame, a cargo box arranged behind it, and a storage box provided in a space between the driver's cab and the cargo box. . At this time, the size of the space between the driver's seat and the cargo box in the vehicle front-rear direction is reduced to increase the volume of the cargo box as much as possible.

JP 2005-170580 A

However, the vehicle has a rectangular space elongated in the vertical direction when viewed from the side, and the storage box 9 made in accordance with the space also has a vertically elongated shape. At this time, since the lower part of the storage box 9 is fixed to the vehicle body frame via the holding part, the storage box 9 is shaken in the vehicle front-rear direction during traveling (particularly sudden start / stop), and the holding part is damaged. There was a problem to do.
The present invention has been made in view of the above circumstances, and suppresses damage to the holding portion of the storage box disposed in the space between the cab and the cargo box due to shaking during traveling. An object of the present invention is to provide a work vehicle that can be used.

In order to achieve the above object, a work vehicle according to the present invention includes a vehicle body frame extending rearward from the lower side of the cab, and a cargo box disposed above the vehicle body frame and rearward of the cab. And a storage box disposed between the cab and the cargo box, wherein the storage box holds the lower part on the vehicle body frame via the lower holding part and the upper part. It is characterized by being held in the packing box through the upper holding part.
According to the work vehicle having such a configuration, since the vehicle body frame and the packing box hold the upper and lower sides of the storage box, the holding part (lower holding part) of the storage box is prevented from being damaged due to shaking during traveling. can do.

  Further, the packing box is arranged to be tiltable toward at least one of left and right or rear of the vehicle, and the upper holding portion includes an engaging portion provided in either the packing box or the storage box and the other. It is preferable to have an engaged portion that is provided and engages with the engaging portion when the cargo box is in a landing posture. In this case, the upper holding part is engaged so as to suppress the shaking of the upper part of the storage box when the cargo box is in the landing position, and is released when the cargo box is tilted. The packing box can be tilted in the state left in the box. Therefore, when the storage box is tilted, the operating force required for tilting the load box can be reduced as compared with the case where the storage box has to be lifted together with the load box.

  It is preferable that the engaging part and the engaged part are constituted by a pin and a hole. In this case, when the packing box is in the landing posture, the pin and the hole engage with each other, so that the movement of the upper part of the storage box in any of the front, rear, left and right directions can be suppressed.

  The upper holding part is preferably arranged above the lower holding part. In this case, the lower holding part and the upper holding part are not displaced in the vehicle width direction. It can be sandwiched and held firmly.

  According to the work vehicle of this invention, it can suppress that the holding | maintenance part of the storage box arrange | positioned in the space between a driver's cab and a cargo box is damaged by the shake at the time of driving | running | working.

It is the side view which looked at the refuse collection vehicle of this invention from the port side. It is a side view which shows the state which tilted the packing box of the garbage truck. It is a rear view of a garbage truck. It is a top view of a refuse collection vehicle. It is a control block diagram of a refuse collection vehicle. It is a perspective view which shows typically the state which decomposed | disassembled the drive device unitized. It is a side view which shows the attachment part of a dump cylinder typically. It is a side view which shows typically the securing structure of a storage box.

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

  FIG. 1 is a side view of a garbage truck 1 as a work vehicle according to 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 containing box 2 is provided at the front of the dust throwing box 3.

  A main girder 2c is fixed to the bottom of the refuse storage box 2, and the main girder 2c is pivotally supported by a hinge P1 provided at the rear end of the vehicle body frame 1b. The garbage storage box 2 can be dumped (tilted) backward by extension (see FIG. 2). The dust box 3 can be rotated around a fulcrum P2 provided at the top, and can be opened and closed with respect to the dust container 2 by expansion and contraction of the swing cylinder 20 (see FIG. 3). The dust container 3 closes the opening 2a of the dust container 2 at the position shown in FIG. 1, and opens the opening 2a of the dust container 2 when rotated upward as shown in FIG. By dumping the dust storage box 2 rearward with the dust input box 3 pivoted upward, the dust in the dust storage box 2 can be discharged. Note that the dust input box 3 is normally fixed integrally to the dust container 2 by a tailgate lock (not shown), and the tailgate lock is a dust container that is stored by dumping the dust container 2. The trash is thrown out at the time of discharging or inspecting and servicing, so that the dust box 3 can be rotated.

  Next, a loading device T including a rotating plate 4, a pushing plate 5, a push cylinder 6, and a hydraulic motor Mo is provided in the dust box 3. The rotating plate 4 is provided so that both ends thereof are integral with the lower support shaft PL that is rotatably supported through the left and right side walls 3c of the dust box 3 via bearings and can be rotated about the axis. The pushing plate 5 is provided so that both ends thereof are integral with the upper support shaft PU, which is rotatably supported by the left and right side walls 3c of the dust box 3 via bearings, and can swing back and forth about the axis. . By rotating the rotating plate 4 clockwise, the dust thrown into the dust throwing box 3 can be scraped up from the bottom of the dust throwing box 3 to the upper front, and by swinging the pushing plate 5, the rotating plate The dust scraped up by 4 can be pushed into the front side (in the dust container 2). The upper and lower support shafts PU and PL extend in parallel to each other across the dust box 3.

  In one side wall 3c of the dust box 3, a hydraulic motor Mo is provided which is linked to the outer end of the lower support shaft PL and can drive the support shaft PL (and hence the rotating plate 4) in the forward and reverse directions. Further, the dust throwing box 3 accommodates a push cylinder 6 that is interposed between the dust throwing box 3 and the base end portion of the pushing plate 5 and can drive the pushing plate 5 back and forth.

  The rotating plate 4 and the pushing plate 5 can execute a predetermined dust loading cycle for forcibly pushing the dust thrown into the dust throwing box 3 into the dust container 2 in cooperation with each other. In this cycle, when there is a predetermined start operation input, the rotating plate 4 and the pushing plate 5 start from a state where the rotating plate 4 and the pushing plate 5 are in their initial positions (positions indicated by solid lines in FIG. 1). It ends when it returns to the initial position and stops.

  When the rotating plate 4 and the pushing plate 5 are stopped at the initial position, the push cylinder 6 is in the extended state, the hydraulic motor Mo is in the stopped state, and the corresponding electromagnetic valves are in the neutral position. When the solenoid 24s is excited, the push cylinder 6 contracts to swing the push plate 5 counterclockwise (return process), and when the solenoid 24e of the push cylinder solenoid valve is excited, the push cylinder 6 extends. As a result, the pushing plate 5 swings clockwise (pushing process). On the other hand, when the solenoid 25e of the solenoid valve for the hydraulic motor is excited, the rotating plate 4 rotates clockwise (forward rotation process), and when the solenoid 25s is excited, the rotating plate 4 rotates counterclockwise (reverse rotation process). To do. The forward rotation process of the rotating plate 4, the return process of the pushing plate 5 (the forward rotating process of the rotating plate 4 is continued), and the pushing process of the pushing plate 5 are sequentially operated (cycle operation), whereby the dust in the dust box 3 Can be loaded into the refuse storage box 2.

  When the dust container 2 is in the landing position (posture in FIG. 1), the dump cylinder 19 is in the most contracted state, and the dump cylinder solenoid valve is in the neutral position. When the solenoid 26e of the dump cylinder solenoid valve is energized, the dump cylinder 19 extends and dumps the dust storage box 2. When the solenoid 26s is energized, the dump cylinder 19 contracts to lower the dumped garbage storage box 2 to the landing position (dump lowering). When excitation is off and the dump cylinder solenoid valve is in the neutral position, both ports of the dump cylinder 19 are sealed.

  When the dust box 3 is closed (posture in FIG. 1), the swing cylinder 20 is in the most contracted state, and the swing cylinder solenoid valve is in the neutral position. When the solenoid 27e of the swing cylinder solenoid valve is excited, the tailgate lock 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 solenoid 27s is energized, the hydraulic oil in the swing cylinder 20 is returned to the tank 21 via the swing cylinder solenoid valve due to the dead weight of the dust throwing box 3, whereby the swing cylinder 20 is contracted, and the dust box 3 is rotated downward. When the solenoid 28 of the tailgate locking solenoid valve is energized after the dust input box 3 reaches the downward rotation end, the tailgate lock is locked and the dust input box 3 is locked. Thereafter, the solenoid 28 is demagnetized and the locked state of the tailgate lock is maintained.

  The valve block 33 in which each electromagnetic valve is housed is fixed to the upper part of the front surface 2b of the dust container 2 and substantially at the center in the vehicle width direction. The valve block 33 is connected to a plurality of hydraulic pipes for supplying and discharging hydraulic oil to and from the cylinders 6, 19, 20 and the hydraulic motor Mo.

  On the other hand, in FIG. 3, 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. 5 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 one operation of performing one cycle operation of the loading device T 100 times and one operation of dumping the storage box) by one charge. 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 valve 28 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 for supporting the bottom of the dust container 2 with respect to the vehicle frame 1b at a predetermined height position. The support member 61 includes a front support portion 63 and a rear support portion 64 disposed below the front and rear portions of the main beam 2c.

  The main girder 2c is composed of a pair of left and right channel members formed extending in the front-rear direction, and the upper surface of each main girder 2c is fixed to the bottom plate 2d of the dust container box 2 by welding. The length of each main beam 2c in the vehicle front-rear direction is formed substantially the same as the length of the bottom plate 2d of the dust container 2 in the front-rear direction. Further, the arrangement interval in the vehicle width direction of each main girder 2c is formed substantially the same as the arrangement interval in the vehicle width direction of each body frame 1b. Further, a concave portion 2c1 that opens downward is formed in the front surface of the lower surface of the main beam 2c (see FIG. 2). And the reinforcement part 2c2 is being fixed to the inner surface of the main girder 2c corresponding to the recessed part 2c1 (refer FIG. 4).

  A recess 66 that opens downward is formed by the recess 2c1 formed on the lower surface of the main beam 2c, the rear surface of the front support portion 63, and the front surface of the rear 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 Sf (cab back space) is formed between the front surface of the front support portion 63 and the front wall 2b 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 the constituent members of the driving 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. 6 is a perspective view schematically showing a state in which the driving device 58 is disassembled. FIG. 4 is a plan view of the garbage truck 1. FIG. 7 is a side view schematically showing a mounting portion of the dump cylinder 19 and FIG. 8 is a side view schematically showing a securing structure of the control box 56 (storage box).

  In FIG. 6, the constituent members of the driving device 58 are all attached to and integrated with a common attachment 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 box lower 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 cross member 72b made of a pair of front and rear square pipes having both ends fixed to the inner side surfaces of the left and right base frames 72a. Digit). The battery 46 is placed above each cross member 72b.

  The battery 46 is formed in a rectangular shape, and is arranged such that its longitudinal direction extends in the vehicle width direction (left-right direction) (see FIG. 4). 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, and a support portion 46b1 of a fixed frame 46b formed in a U-shape on the upper surface of these projecting portions 46a. Are fixed by bolts (not shown). The attachment portion 46b2 of each fixed frame 46b is fixed to the front and rear cross members 72b by bolts (not shown). The vertical portion of the fixed frame 46b is formed with such a length that the mounting portion 46b2 protrudes from the lower surface of the battery 46. When the battery 46 is fixed to the mounting member 71, there is a gap above the cross member 72b. They are arranged via Su. The gap dimension in the vertical direction of the gap Su is formed such that a U bolt 77a described later does not contact the lower surface of the battery 46 (see FIG. 7).

  As shown in FIG. 6, the fixing positions of the projecting portion 46a, the fixing frame 46b, and the cross member 72b by the bolt are the same on the front side and the rear side of the battery 46. This is indicated by a chain line arrow.

In FIG. 6, a bracket 73a is fixed to the box front mounting portion 73 by welding, and the charger 50 is placed on the upper surface of the bracket 73a. On the rear surface of the charger 50, a protruding portion 50c protruding rearward is integrally formed, and the protruding portion 50c is fixed to the bracket 73a with a bolt (not shown).
The connector 52 connected to the charger 50 is attached with its connection port facing outward, and the power cable 51 from the external power source can be easily connected to the connector 52 from the starboard side of the vehicle.

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 (lower holding portion) disposed on the port side of the box front space Sf. And further.
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. 6).

  The base frame 74a is integrally formed with the front end portion of the base frame 72a on the right side of the box lower mounting portion 72 (see FIG. 6). 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 plane by a belt (not shown) with the oil tank 21 mounted thereon. .

  An oil filter 30a is connected to the inside upper portion of the oil tank 21 (see FIG. 4). In addition, the other end of the hydraulic pipe 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, thereby making it easy to check the inside of the dust container 2 from the inspection window (not shown) provided in the front wall 2b of the dust container 2. (See FIG. 4).

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 above each support frame 75b. And a mounting frame 75c made of an angled material.
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.

  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 a bolt (not shown). 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.

  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. 6, the electric motor 45 is fixed to a center portion in the longitudinal direction of each mounting frame 75 c by a bolt (not shown), and one end portion of the electric motor 45 (see FIG. 6). 6 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 are fixed to the upper ends of the vibration isolating rubber 75d. Each leg portion 56a is fixed to the mounting frame 75c by bolts and nuts (not shown).

  The length of each leg portion 56a in the vertical direction is longer than the height of the electric motor 45, and the electric motor 45 and the control box 56 can be fixed on the mounting frame 75c without interfering with each other. it can.

In FIG. 6, the front support portion 63 and the rear 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 rear support portion 64 is disposed at the rear end portion of the base frame 72a of the box lower mounting portion 72, and is a support frame 64a made of a pair of left and right channel members fixed to the upper surface of each base frame 72a by welding, It has a pair of left and right flat plate mounting frames 64b fixed to the upper end of each support frame 64a. A hinge P1 is provided at the rear of each support frame 64a (see FIG. 1).

The attachment member 71 is fixed to the left and right vehicle body frames 1b by securing means 76. The lashing means 76 includes a plurality of first lashing portions 77 that fix the attachment member 71 to the upper surface of each vehicle body frame 1b, and a plurality of second lashing portions 78.
The first securing portion 77 fixes the base frames 74a and 75a of the box front mounting portions 74 and 75 to the vehicle body frame 1b by U bolts 77a and nuts 77b, respectively. The second securing portion 78 has U-shaped fastening brackets 78c and 78d fixed to the outer surface of the front support portion 63 or the rear support portion 64 and the outer surface of the vehicle body frame 1b by bolts 78a and nuts 78b. By fastening, the front support part 63 (attachment member 71) and the rear support part 64 are each fixed to the vehicle body frame 1b.

  In FIG. 1, a resin pad (not shown) is fixed on the mounting frames 63 b and 64 b of the front support portion 63 and the rear support portion 64, and when the dust container 2 is in the landing posture, The main beam 2c is placed on the upper surface of the resin pad.

  As shown in FIGS. 6 and 7, a cylinder bracket 80 is fixed to a substantially central portion of the lower surface of the rear cross member 72b. A hole is provided in the lower portion of the cylinder bracket 80, and a base portion 19a of the dump cylinder 19 is pivotally supported by a hinge pin 80a so as to be rotatable. The tip 19b of the dump cylinder 19 is pivotally supported on the main beam 2c.

  As shown in FIG. 8, the upper part of the control box 56 is held on the upper part of the dust container 2 (packing box) by the upper holding part 90. The upper holding part 90 has an engaged part 91 fixed to the control box and an engaging part 92 fixed to the upper front part of the dust storage box 2. The engaged portion 91 is composed of a plate 91a fixed to the upper surface of the control box 56 via a vibration isolating rubber 91b. A hole 91c is provided in the center of the plate 91a. The engaging portion 92 includes a bracket 92a fixed to the dust container 2 and a pin 92b fixed to the bracket 92a. When the dust container 2 is in the landing position (the posture indicated by the one-dot chain line in FIG. 8), the pin 92b of the engaging portion 92 is inserted into the hole 91c of the engaged portion 91, and the engaging portion 92 The lower surface of the bracket 92 a comes into contact with the upper surface of the plate 91 a of the engaged portion 91. The engaging portion 91 and the engaged portion 92 are fixed so as to be positioned above the vehicle body frame 1b (see FIGS. 1 and 8).

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. 6, the drive device 58, the front support portion 63 and the rear support portion 64 of the support member 61 are mounted in advance on the mounting member 71 so as to form a unit. The main beam 2c of the support member 61 is fixed to the bottom plate 2d of the dust container 2 by welding.

Next, the unitized mounting member 71 is placed on the upper surface of the front portion of the vehicle body frame 1b, and as shown in FIG. 1, the first lashing portion 77 and the second lashing portion 78 of the lashing means 76 are placed. Thus, the front and rear of the attachment member 71 are fixed on the vehicle body frame 1b.
Subsequently, the refuse storage box 2 is mounted above the vehicle body frame 1b. Specifically, as shown in FIG. 1, the main girder 2c fixed to the bottom of the dust container 2 is placed on the upper surfaces of the front support 63 and the rear support 64 on the vehicle body frame 1b side. In this state, the rear support portion 64 and the main beam 2c are fastened by the hinge P1. Thereby, the mounting operation is completed.

  According to the garbage collection vehicle 1 configured as described above, the upper portion of the control box 56 (storage box) held at the vehicle body frame 1b by the second box front mounting portion 75 (lower holding portion) is held at the upper portion. Since it is hold | maintained at the refuse storage box 2 (packing box) by the part 90, it can suppress that the upper part of the control box 56 shakes by the vibration at the time of driving | running | working. Thereby, it can suppress that a lower holding | maintenance part will be damaged by the shaking of the control box 56 based on driving | running | working vibration. The bracket 92a of the upper holding portion 90 is sandwiched from above and below the control box 56 because the upper surface of the plate 91a of the engaged portion 91 is pressed when the dust container 3 (loading box) is in the landing position. And can be effectively suppressed. Since the control box 56 is pressed by the bracket 92a (upper holding portion) from above the second box front mounting portion 75 (lower holding portion), the control box 56 is not pressed diagonally and is held between the upper and lower sides. It is possible to prevent the control box 56 from being deformed. In this specification, holding the control box 56 (storage box) means that the movement of the control box 56 is restricted during traveling, and the bolt / It includes the concept of restricting movement by using frictional force, which regulates movement by detachably fixing by fitting a nut or pin.

    Further, since the lower portion of the control box 56 is held via the vibration isolating rubber 75d and the upper portion is held via the vibration isolating rubber 91b, the vibration of the vehicle body frame 1b while the vehicle is traveling is directly transmitted to the control box 56. As a result, it is possible to prevent the device housed in the control box 56 from being damaged. The anti-vibration rubbers 75d and 91b can absorb the impact in the dump lowering operation.

  The present invention is not limited to the above embodiment.

In the above embodiment, the engaged portion 91 of the upper support portion 90 is attached to the control box 56 (storage box), and the engaging portion 92 is attached to the garbage storage box 2 (packing box). Also good. Further, by providing a hole 91c in the engaged portion 91 and a pin 92b in the engaging portion 92, and inserting the pin 92b in the hole 91c, the movement of the vehicle in the longitudinal and lateral directions is restricted, and the plate of the engaged portion 91 The bracket 92a of the engaging portion 92 is brought into contact with 91b to restrict the vehicle vertical movement as well as the vehicle vertical movement, but the holed bracket is fixed to the storage box and the cargo box. And you may make it regulate the movement of a storage box by letting a pin pass to the hole of both brackets. At this time, any one of the brackets and the pins and the other bracket constitute an engaging portion and an engaged portion, respectively.
The dump cylinder 19 is pivotally supported by the cross member 72b and the main girder 2c as the packing box tilting device to dump the dust storage box 2, but the dust storage box 2 is dumped using a link mechanism. Also good. At this time, one end of the link mechanism may be pivotally supported on the cross member 72b. The dust in the dust container 2 is discharged by dumping the dust container 2, but the dust container 2 is fixed to the vehicle body frame 1b and can be moved in the garbage container 2 in the longitudinal direction of the vehicle. A so-called forced discharge type in which dust is discharged by inserting a discharge plate and moving the discharge plate rearward may be used.

  In the above-described embodiment, the control box 56 for controlling the operation of the loading device T is disposed in the front space Sf so as to hold the upper and lower sides thereof, but other configurations of the driving device 58 such as the battery 46 are provided. It may be a part. Further, a part of the driving device 58 is arranged in the box front space Sf and other components are arranged in the box lower space Sd. However, the whole driving device 58 is arranged in the box lower space Sd, and the box front space Sf is arranged. Other devices such as spare tires and accessory cases may be used as the devices to be arranged in the vehicle. Further, the lower holding part and the upper holding part are configured to be held by the cargo box and the vehicle body frame via a plurality of vibration isolating rubbers (75d, 91b), but are directly held without any or all of them. You may do it.

In addition, the front support portion 63 and the rear support portion 64 are configured as an integral member, but are formed as separate members and arranged separately from each other on the vehicle body frame 1b to form a recessed portion 66. It is also possible to arrange part or all of the drive device 58.
Moreover, although the hollow part 66 is formed with the main girder 2c and the front support part 63, it can also be formed only with the main girder 2c formed bulky. In this case, a part of the main girder 2c is cut out to form a hollow part 66, and the box lower space Sd may be formed by the hollow part 66 and the vehicle body frame 1b.

  The box lower space Sd is formed below the lower surface of the main girder 2c, but outside or inside the main girder 2c in the vehicle width direction, above the lower surface, and from the bottom plate 2d of the dust storage box 2. The lower space 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.

  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 valve block 33 is connected to each of the cylinders 6, 19, 20 and the hydraulic motor Mo by using a flexible hydraulic hose instead of the hydraulic pipe 40, the connection described above when the dust container 2 is tilted. The state can be maintained.

Further, the drive device 58 operates all the cylinders and the hydraulic motor constituting the loading device T, but it is sufficient that at least one cylinder is operated. The driving device 58 is driven by the battery 46, but power may be extracted from the engine of the vehicle to drive each cylinder and hydraulic motor.
In addition, the loading device T is a rotary plate type in which dust is loaded by cooperation of the push plate and the rotary plate, but may be a press type in which dust is loaded by a cycle motion of only the push plate 8. In this case, the pushing plate and the cylinder for operating the pushing plate constitute a part of the loading device T.

DESCRIPTION OF SYMBOLS 1 Waste collection vehicle 1a Driver's cab 1b Car body frame 2 Dust storage box 3 Dust input box 3a Input port 19 Dump cylinder (load box tilting device)
46 Battery (Driver)
46b Support frame 72b Cross member (horizontal girder)
80 Cylinder bracket

Claims (4)

A vehicle body frame extending rearward from the bottom of the cab;
A cargo box disposed above the body frame and behind the cab of the cab;
A work vehicle comprising a storage box disposed between the cab and the cargo box,
A work vehicle in which a lower portion of the storage box is held on the vehicle body frame via a lower holding portion and an upper portion is held on the cargo box via an upper holding portion. The cargo box is arranged to be tiltable toward at least one of the left and right or the rear of the vehicle,
The upper holding portion includes an engaging portion provided in one of the cargo box and the storage box, and an engaged portion provided in the other and engaged with the engaging portion when the cargo box is in a landing posture. The work vehicle according to claim 1, comprising:   The work vehicle according to claim 1, wherein the engaging portion and the engaged portion are configured by a pin and a hole.   The work vehicle according to claim 1, wherein the upper holding portion is disposed above the lower holding portion.

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