JP2010120727A - Garbage collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a garbage collector with an increased allocation space for a drive system without reducing a housing space for a garbage container. <P>SOLUTION: With a discharge plate 18 serving as a bottom of the garbage container 2 located at a foremost position, in a dead space anterior to a lower part of its inclined portion 18a, a first containing unit 64 and a second containing unit 69 are arranged in a body width direction. The first containing unit 64 contains a battery box 49 and the second containing unit 69 contains a power unit 48. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a garbage truck that compresses and stores dust by a loading device driven by a battery as a power source.

A conventional garbage collection vehicle includes a dust input box at the rear of the dust storage box, and a loading device for loading the input dust into the dust storage box is provided in the dust supply box. The loading device can perform a loading operation by driving a driving device having an electric motor (see, for example, Patent Document 1).
Since the electric motor is driven by receiving power from a battery mounted on the vehicle, the loading device can be operated with the engine stopped, and the loading operation can be performed with low noise. The amount of exhaust gas can be reduced.

JP 2005-329871 A

However, in the garbage truck, a drive device such as a battery or an electric motor is disposed near the engine. Therefore, depending on the vehicle model, the drive device can interfere with other mounted devices and cannot be attached. There was a problem.
In order to solve the above problem, there is known a garbage collection vehicle in which a driving device is arranged in a cab back space existing between a cab (operator's cab) and a dust storage box. Since this cab back space is a space that has existed in the past in order to place an oil tank that stores hydraulic oil for the hydraulic equipment of the loading device, the drive device can be placed without being affected by the vehicle type. it can.
However, in recent years, the drive device has been increased in size for reasons such as increasing the amount of electricity stored in the battery, and the drive device cannot be disposed only in the conventional cab back space. The cab back space is widened by forming a short space. However, when the length of the dust container box in the front-rear direction is shortened, there arises a new problem that the storage space in the dust container box is reduced.
In view of the above-described conventional problems, an object of the present invention is to provide a garbage collection vehicle capable of increasing the arrangement space of a driving device without reducing the accommodation space of a dust container box.

In order to achieve the above object, a garbage collection vehicle according to the present invention is mounted on a vehicle body frame and has a dust storage box having an opening on the rear surface, and a dust input provided in connection with the opening of the dust storage box. A box, a loading device for loading the dust thrown into the dust bin into the dust storage box, a battery, and a drive device for driving the loading device using the battery as a power source, In the refuse storage box, it is provided so as to be movable back and forth between the foremost position and the rearmost position, and has a sloped part that slopes backward and downward at the lower part. A discharge plate for discharging the dust contained in the storage box from the opening, and a bottom portion of the dust storage box, with the discharge plate positioned at the foremost position from the lower portion of the inclined portion When placed forward Moni, is characterized in that at least part of the drive device is provided with an accommodation portion which is accommodated.
According to the garbage collection vehicle having such a configuration, when the discharge plate is positioned at the foremost position, the dead space is formed in front of the lower portion of the inclined portion of the discharge plate and at the bottom of the dust storage box. In addition, since the storage portion in which a part of the drive device is stored is disposed, the space for arranging the drive device can be increased without reducing the dust storage space behind the discharge plate in the dust storage box. it can.

The garbage collection vehicle further includes a fuel tank that is provided on one side of the vehicle body frame in the vehicle width direction and stores engine drive fuel, and the storage portion includes the vehicle body frame vehicle. It is preferable that the battery is housed while being disposed on the other side in the width direction.
In this case, since the battery is arranged at a position away from the fuel tank, it is possible to prevent the fuel leaked from the fuel tank from being ignited by the heat generated by the battery.

Moreover, it is preferable that the said accommodating part has the 1st accommodating part arrange | positioned at the one side of the vehicle width direction, and the 2nd accommodating part arrange | positioned at the other side of the vehicle width direction.
In this case, since the first storage portion and the second storage portion are arranged in the vehicle width direction, the arrangement space of the drive device can be further increased without forming the storage portion long in the front-rear direction.

Moreover, it is preferable that the said garbage collection vehicle has the said storage part attached to the said dust storage box.
In this case, since the storage portion can be attached to the dust container box in advance before the dust container box is assembled to the vehicle body frame, the assembling work can be easily performed.

  According to the refuse collection vehicle of the present invention, since the storage portion in which a part of the drive device is stored is disposed in the dead space formed in the bottom portion of the dust storage box, the discharge plate in the dust storage box is used. The arrangement space of the drive device can be increased without reducing the dust storage space behind.

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 is connected to a cab (cab) 1a, a pair of left and right vehicle body frames 1b, a dust container box 2 mounted on the vehicle body frame 1b, and a rear part of the dust container box 2. A dust input box 3 is provided. The dust storage box 2 has an opening 2a on its rear surface, and a pair of left and right Z-shaped main girders 2c are fixed to the bottom plate 2b, and the main girders 2c are fixed to the upper surface of the vehicle body frame 1b. (See FIG. 16). At the rear of the dust input box 3, there is formed an input port 3a through which dust is input, 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 members having a side shape as shown in the drawing 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 integrally formed by connecting the left and right side members shown in the figure with a plate or the like (not shown) extending in the vehicle width direction.

  On the other hand, the cylinder side end of the push cylinder 9 (compression driving means) is attached to the left and right side walls 3 c by pins 10, and the piston side end is connected to the upper end of the slider 5 by pins 11. On the other hand, the cylinder side end of the press cylinder 12 (pushing drive means) 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 slider 5 can reciprocate corresponding to primary compression and push-in described later. Further, the pushing plate 8 is rotated clockwise around the pin 7 by the extension operation of the press cylinder 12, and is rotated counterclockwise by the contraction operation. Thereby, the pushing plate 8 can be reciprocally rotated corresponding to reversal and secondary compression described later.

  2A is an operation explanatory view in which only the pushing plate 8, the push cylinder 9 and the press cylinder 12 are extracted from FIG. 1 (however, the position of the push cylinder 9 is slightly shifted for easy understanding of the drawing). ). The pushing plate 8 performs the “reverse” stroke by the contraction operation of the press cylinder 12 with the position shown in (a) as the original position, and enters the state shown in (b). Next, the push plate 8 performs a “primary compression” process by the contraction operation of the push cylinder 9 and is in a state shown in FIG. Subsequently, the pushing plate 8 performs a “secondary compression” process by the extension operation of the press cylinder 12 and is in a state shown in FIG. Finally, the pushing plate 8 performs a “pushing” stroke by the push cylinder 9 extending, and returns to the state shown in FIG. As the push cylinder 9 and the press cylinder 12 operate alternately in this way, the pushing plate 8 performs a stroke operation (inversion, primary compression, secondary compression, and pushing). As shown in the drawing, the distal end portion 8a of the pushing plate 8 draws a closed shape in which the operation locus connects four points.

  In the vicinity of the push cylinder 9 and the press cylinder 12, proximity switches (14, 15, 16, and 17) for detecting that the expansion and contraction operations have reached the extension end and the contraction end are provided. The first proximity switch 14 detects that the operation of the push cylinder 9 has reached the extended end. The second proximity switch 15 detects that the operation has reached the contracted end by detecting the dog 12 a attached to the press cylinder 12. The third proximity switch 16 detects that the operation of the push cylinder 9 has reached the contracted end. The fourth proximity switch 17 detects that the operation of the press cylinder 12 has reached the extended end. The first proximity switch 14 and the third proximity switch 16 are fixedly attached to the dust box 3, while the second proximity switch 15 and the fourth proximity switch 17 are attached to the slider 5 side. The push cylinder 9 moves with the expansion and contraction operation.

  Returning to FIG. 1, 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 body. Is formed. One end 19a of the telescopic discharge cylinder 19 (discharge plate driving means) is connected to a substantially intermediate portion in the vehicle width direction of an inclined portion 18b described later of the discharge plate 18, and the other end 19b is the 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 the drawing by the expansion and contraction of the discharge cylinder 19. When the storage space S 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 amount of dust loaded increases, the discharge cylinder 19 is gradually contracted to move the discharge plate 18 forward, thereby expanding the accommodation space S. Further, by extending the discharge cylinder 19 and moving the discharge plate 18 backward, the dust stored in the dust storage box 2 can be discharged from the opening 2a.

  In the lower part of the discharge plate 18, an inclined portion 18 a inclined backward and downward is formed, and the dust loaded in the accommodation space S is moved upward along the inclined portion 18 a by the pushing operation of the pushing plate 8. To move to. Thereby, dust can be accommodated without gaps over the entire accommodation space S.

  FIG. 3 is a rear view of the garbage truck 1. A pair of swing cylinders 20 (input box driving means) 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.

  FIG. 4 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. 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 controller 47 described later. The pressure control valves 23a to 23e, the electromagnetic valves 24 to 27, the switching valve 28a, the check valves 29a to 29g, the filters 30a to 30b, and the pressure sensor 32 are housed in a valve box 33.

  When the pushing plate 8 is stopped at the original position (FIG. 2A), both the push cylinder 9 and the press cylinder 12 are 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 excited, each 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 in the figure. . 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 via the switching valve 28b and the swing cylinder solenoid 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.

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, a lock lamp 39, a charging lamp 40 and an alarm buzzer 41 (see FIG. 6). ing.
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. The charging lamp 40 is lit when an open / close lid 54d of a relay box 54 described later is opened.
The alarm buzzer 41 sounds when the key switch 55 is turned on when a later-described fifth proximity switch 63 is in a detection state.

  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. On the side surface of the switch box SB2, there is an operation selection switch 42 for selecting either “continuous cycle” or “1 cycle” operation mode as the operation of the push-in plate 8. A loading switch 43 for starting the loading 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 this electric motor 45 is driven by an output of a controller 47 using a dedicated battery 46 as a power source. The hydraulic pump 22 and the electric motor 45 constitute a power unit 48. The battery 46 is housed in a battery box 49 and is charged with electric power supplied from an external commercial power source via a 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 controller 50a that controls charging of the battery 46, and a rectifier 50b that converts AC power supplied from a commercial power source into DC power.

  The charger 50 is connected to a relay box 54 together with a connector 52 for connecting a power cable 51 from a commercial power source to the charger 50 and an AC / DC converter 53 that converts AC power supplied from the commercial power source into DC power. It is stored. The DC power converted by the AC / DC converter 53 is supplied to the electric motor 45 through the controller 47, and the electric motor 45 can be directly driven by supplying power from a commercial power source.

The controller 47 is energized via the engine start key switch 55 and the main switch 34 provided in the cab 1a. The controller box 56 that houses the controller 47 is provided with an emergency stop switch 57, which supplies power from the battery 46 and the AC / DC converter 53 (commercial power supply) in an emergency such as when the controller 47 fails. Can be cut off.
The solenoids 24e to 27e, 24s to 27s and the switching valves 28a to 28b in the valve box 33 are excited and demagnetized by the controller 47. The names of blocks such as solenoids are displayed by function. The controller 47 includes functional switches (shown as SW; the same applies hereinafter) 34 to 37, 42 to 44, the first to fourth proximity switches 14 to 17 described above, a fifth proximity switch 63 described later, and a pressure sensor. 32, input signals are given from a thermometer 59 and a rotation speed sensor 60 described later. Further, the various lamps 38 to 40 and the alarm buzzer 41 are turned on by the output of the controller 47.
The valve box 33, the power unit 48, the battery box 49, the relay box 54, the controller box 56, and the devices housed in the boxes 33, 49, 54, 56 constitute the driving device 58 of the present invention. ing.

The electric motor 45 is provided with a thermometer 59 for detecting the temperature of the electric motor 45 and a rotation speed sensor 60 for detecting the rotation speed of the electric motor 45, and an input signal from the thermometer 59 and the rotation speed sensor 60. Is supplied to the controller 47 so that the output of the electric motor 45 is controlled.
When the temperature of the thermometer 59 is 100 ° C. or lower in the PQ diagram of FIG. 7, the electric motor 45 is controlled according to the high output setting indicated as “low temperature” in the drawing. Specifically, the operating pressure represented by the signal input from the pressure sensor 32 is P [Pa], and the rotational speed represented by the signal input from the rotational speed sensor 60 is converted into a discharge amount to obtain Q [m. ³ / sec], the output (P · Q) of the electric motor 45 is controlled to be a constant value (11 kW). For example, when P = P1 (16 MPa), Q = Q1 (0.69 × 10 ⁻³ m ³ / second (41 liters / minute)), and the output of the electric motor 45 is
P1 · Q1 = 16 × 106 × 0.69 × 10 ⁻³
= 11 × 10 ³ [W] = 11 [kW]
It becomes.

Further, when the temperature of the thermometer 59 rises to 120 ° C. by driving the electric motor 45 for a long time, the output (P · Q) of the electric motor 45 becomes a constant value (3.3 kW). This is done according to the low output setting labeled “High temperature” in the figure. For example, when P = P2 (8 MPa), Q = Q2 (0.41 × 10 ⁻³ m ³ / second (25 liters / minute)), and the output of the electric motor 45 is
P2 · Q2 = 8 × 106 × 0.41 × 10 ⁻³
= 3.3 × 10 ³ [W] = 3.3 [kW]
It becomes.
When the electric motor 45 is driven at a low output by the low output setting, the temperature of the electric motor 45 gradually decreases, and when the temperature of the thermometer 59 decreases to 100 ° C. or less, the control is switched to the control of the high output setting. . As described above, when the temperature of the electric motor 45 becomes high, the control is switched from the high output setting to the low output setting control, so that the electric motor 45 can be prevented from being damaged due to the temperature rise.

  Next, each of the boxes 33, 49, 54, and 56 and the power unit 48 constituting the drive device 58 and the mounting structure thereof will be described in detail. In FIG. 1, the valve box 33 and the controller box 56 are arranged in a cab back space C formed between the cab 1 a and the front wall 2 d of the dust container 2. Specifically, the valve box 33 is fixed to the upper end portion of the front wall 2d and substantially at the center in the vehicle width direction (see FIG. 8). The controller box 56 is fixed to the front wall 2d adjacent to the left side (lower side in FIG. 8) of the valve box 33 so that the emergency stop switch 57 is arranged on the left side. Thus, the operator can easily operate the emergency stop switch 57 from the port side of the vehicle. The cab back space C is a space conventionally formed for disposing the oil tank 21, and is located on the main girder 2c on the right side (upper side in FIG. 8) of the cab back space C in the vehicle width direction. The oil tank 21 is fixed. Between the oil tank 21 and the valve box 33, the above-described oil filter 30a is disposed.

  In FIG. 1, the relay box 54 is disposed on the port side of the vehicle and at the bottom of the dust container 2. FIG. 9 is an enlarged view of a main part of FIG. 1 showing a mounting structure of the relay box 54, and FIG. 10 is a plan view of the relay box 54. 9 and 10, the relay box 54 has bolts and nuts attached to a pair of front and rear support brackets 61 whose front and rear side walls 54a are suspended and fixed to the bottom plate 2b at the substantially central part in the front-rear direction of the dust container box 2. It is fixed. Thus, since the relay box 54 is arranged in the dead space below the bottom plate 2b, the accommodation space S of the dust container box 2 is not reduced by the arrangement of the relay box 54.

  On the port side side wall 54b of the relay box 54, an opening 54c is formed, and an opening / closing lid 54d for opening and closing the opening 54c is rotatably attached. The opening / closing lid 54d is biased in the closing direction by a spring (not shown). In the vicinity of the opening 54d in the relay box 54, the connector 52 is attached via a U-shaped attachment 54g, and a power cable extending from a commercial power supply with the opening / closing lid 54d open (FIG. 10). 51 can be connected to the connector 52.

  A charging box 54e accommodating the charger 50 and the AC / DC converter 53 is fixed in the relay box 54, and an attachment 54g is interposed between the charging box 54e and the opening 54c. An exhaust fan 62 is attached. The exhaust fan 62 is automatically activated by the controller 50a of the charger 50 when the power cable 51 is connected to the connector 52, and exhausts hot air generated by the heat generated by the charger 50 during charging to the outside through the opening 54c. It is supposed to be. At this time, since the opening 54c serves as an exhaust port of the exhaust fan 62, it is not necessary to separately form an exhaust port dedicated to the exhaust fan 62. Further, by closing the opening / closing lid 54d after completion of charging, the opening 54c, which is the exhaust port of the exhaust fan 62, is closed, so that the relay box 54 can be sealed, and the exhaust port (opening 54c) ) Can prevent rainwater and the like from entering. The AC / DC converter 53 is fixed to the bottom surface of the relay box 54.

A fifth proximity switch 63 (charging detection means) for detecting the dog 54f fixed to the inner surface of the relay box 54 when the opening / closing lid 54d is closed is attached to the relay box 54. The fifth proximity switch 63 is a B-contact type switch (normally ON and turned OFF when a detection target is detected). When the opening / closing lid 54d is opened and the fifth proximity switch 63 is in a non-detection state, The charging lamp 40 disposed in the cab 1a is lit. Thus, the driver can easily confirm that the battery 46 is being charged in the cab 1a.
Further, when the key switch 55 in the cab 1a is turned on by the driver while the fifth proximity switch 63 is in the non-detection state, the alarm buzzer 41 in the cab 1a is sounded to issue an alarm to the driver. It has become. Thereby, it is possible to prevent the driver from accidentally running the vehicle while the battery 46 is being charged.

  In FIG. 1, the battery box 49 is located on the port side of the bottom of the dust container 2, and is disposed in front of the lower portion of the inclined portion 18a with the discharge plate 18 positioned at the foremost position. It is stored in one storage section 64. 11 is an enlarged view of a main part showing the vicinity of the first storage part 64 of FIG. 1, and FIG. 12 is a front view of the first storage part 64 as viewed from the front side of the vehicle. 11 and 12, the first storage portion 64 is formed in a box shape with the front surface (left side in FIG. 11) opened, and is on the port side (right side in FIG. 12) from the discharge cylinder 19. It is arranged at a location where a part of the bottom plate 2b, main girder 2c and front wall 2d of the storage box 2 is cut.

  The battery box 49 is stored in a state of being locked by locking portions 64 b fixed to the left and right side surfaces 64 a in the first storage portion 64. The left and right side surfaces 64a are fixed to the respective cut edges of the bottom plate 2b and the front wall 2d by welding. Further, the bottom surface 64c of the first storage portion 64 is fixed to the support stay 65 by welding in a state where it is placed on a pair of front and rear support stays 65 that are suspended and fixed to the bottom plate 2b. The pair of support stays 65 are connected to each other in the longitudinal direction (vehicle width direction) by a connecting member 66 made of a square pipe, and the connecting member 66 is placed on the upper surface of the vehicle body frame 1b. The body frame 1b is fixed. In FIG. 12, the lower end edge of the cover plate 67 that covers the first storage portion 64 is welded and fixed to the front end portion of each support stay 65 in the longitudinal direction. It is fixed to the lower end of the side wall 2e of the box 2 by welding. Thus, the 1st accommodating part 64 is ahead of the lower part of the said inclination part 18a, and is arrange | positioned using the dead space which does not interfere with the expansion-contraction operation | movement of the discharge cylinder 19. FIG.

  FIG. 13 is a side sectional view of the garbage truck 1 as seen from the starboard side. In the figure, a fuel tank 68 for storing engine driving fuel (light oil) is attached to the outside of the vehicle body frame 1b. The power unit 48 is located at the bottom of the dust storage box 2 above the fuel tank 68, and the discharge plate 18 is positioned at the foremost position (the two-dot chain line in FIG. 13) from the lower portion of the inclined portion 18a. It is stored in a second storage portion 69 arranged in the front.

  FIG. 14 is an enlarged view of a main part showing the mounting structure of the second storage part 69 of FIG. 1, and FIG. 15 is a cross-sectional view of the second storage part 69 as viewed from the front side of the vehicle. 14 and 15, the second storage portion 69 is disposed on the starboard side (left side in FIG. 15) from the discharge cylinder 19. Further, the second storage portion 69 includes a bottom plate 2b of the dust container box 2, a reverse concave top plate 70 fixed to a part of the bottom plate 2b cut, a main girder 2c of the dust container box 2, It is formed by a concave support plate 71 arranged on the outer side of the main beam 2c, and a cover plate 72 (FIG. 15) fixed to the support plate 71 and the lower end of the side wall 2e of the dust container box 2. The support plate 71 is fixed on a pair of front and rear support stays 73 via vibration-proof rubber 74. The support stay 73 is fixed to a mounting bracket 75 fixed to the outer surface of the main beam 2c. As described above, the second storage portion 69 is disposed in front of the lower portion of the inclined portion 18a (on the right side in FIG. 14) using a dead space that does not interfere with the expansion / contraction operation of the discharge cylinder 19. Moreover, since the 2nd accommodating part 69 is formed using the baseplate 2b and the main girder 2c, it is an inexpensive structure.

The support plate 71 is fixed with the electric motor 45 of the power unit 48 placed thereon, and the hydraulic pump 22 is fixed to the electric motor 48. The support plate 71 is formed so as to be recessed downward between the front and back support stays 73, and the top plate 70 is formed so as to be recessed above the bottom plate 2b. The large power unit 48 can be accommodated as in the present embodiment.
The first storage portion 64 and the second storage portion 69 constitute a storage portion 76 (see FIG. 16).

FIG. 16 is a cross-sectional view seen from the front of the vehicle schematically showing the positional relationship between the first storage part 64, the second storage part 69, and the fuel tank 68. In the figure, the first storage portion 64 is disposed on the port side (the right side in FIG. 16), which is one side in the vehicle width direction, and the second storage portion 69 is the other side in the vehicle width direction with the discharge cylinder 19 in between. Are arranged on the starboard side (left side in FIG. 16). For this reason, the arrangement space of the drive device 58 can be increased without forming the storage portion 76 long in the front-rear direction.
The first storage portion 64 is arranged on the port side (right side in FIG. 16), which is one side in the vehicle width direction, and the fuel tank 68 is on the starboard side (left side in FIG. 16), which is the other side in the vehicle width direction. Has been placed. As described above, since the first storage portion 64 and the fuel tank 68 that store the battery 46 are arranged at positions separated from each other in the vehicle width direction, the fuel leaked from the fuel tank 68 is ignited by the heat generated by the battery 46. Can be prevented.

  Further, since the weight of the battery box 49 (including the weight of the battery 46) stored in the first storage unit 64 is heavier than the weight of the power unit 48 stored in the second storage unit 69, the first storage unit 64. And the 2nd accommodating part 69 is arrange | positioned with sufficient balance in the vehicle width direction. Specifically, the first storage unit 64 and the second storage unit 69 are configured such that the horizontal distance L1 between the center line X of the garbage collection vehicle 1 in the vehicle width direction and the center line A of the first storage unit 64 in the vehicle width direction. Is arranged to be shorter than the horizontal distance L2 between the center line X and the center line B of the second storage portion 69 in the vehicle width direction. The ratio of the lengths of the horizontal distances L1 and L2 is such that the center of gravity G in the vehicle width direction of the entire vehicle is the center line X in the state where the battery box 49 and the power unit 48 are stored in the storage portions 64 and 69. It is determined in consideration of the weight of the battery box 49 and the weight of the power unit 48 so as to be arranged above.

  Thus, even if the relatively heavy battery 46 and the power unit 48 are mounted on the vehicle among the devices constituting the driving device 58, the center of gravity position G in the vehicle width direction of the vehicle hardly changes. It is possible to prevent the running stability of the vehicle from being impaired. In the present embodiment, since the first storage portion 64 and the second storage portion 69 are attached to the bottom of the dust storage box 2, each storage portion 64 is mounted before the dust storage box 2 is assembled on the vehicle body frame 1b. 69, the battery box 49 and the power unit 48 can be stored in advance. In this case, since the refuse storage box 2 can be suspended in a stable state by a crane or the like, the assembling work to the vehicle body frame 1b can be performed. It can be done safely.

As described above, the storage unit 76 that stores the battery box 49 and the power unit 48 that are a part of the drive device 58 uses the dead space that exists in front of the lower portion of the inclined portion 18a of the discharge plate 18 at the foremost position. Thus, the arrangement space of the driving device 58 can be increased without reducing the accommodation space S of the dust container box 2.
Moreover, since the 1st accommodating part 64 and the 2nd accommodating part 69 are attached above the vehicle body frame 1b, the accommodating part 76 can be attached, without processing the vehicle body frame 1b.
Further, since the first storage part 64 and the second storage part 69 are attached to the dust container 2, the storage part 76 is attached to the dust container 2 in advance before the dust container 2 is assembled on the vehicle body frame 1 b. Can be attached. For this reason, the said assembly | attachment operation | work can be performed easily.

FIG. 17 is a side sectional view schematically showing the front port side of a garbage truck according to the second embodiment of the present invention, and FIG. 18 is a sectional view of FIG. 17 as viewed from the front. The main difference between this embodiment and the first embodiment is the mounting position of the first storage portion 77 and its mounting structure. Details of this embodiment will be described below. Since other configurations are the same as those in the first embodiment, the same reference numerals as those in the first embodiment are used in the following description.
17 and 18, on the port side of the bottom of the dust container 2, the discharge plate 18 is positioned in the foremost position (left side in FIG. 17), and forward of the lower portion of the inclined portion 18a (see FIG. The first storage part 77 is arranged on the left side of FIG.
The first storage portion 77 is integrally formed with a horizontal portion 78 which is integrally formed by bending vertically with respect to the front wall 2d and the side wall 2e of the dust storage box 2 and with respect to the bottom plate 2b of the dust storage box 2. The vertical part 79 is integrally formed by bending vertically, and the main girder 2c of the dust container 2 and the L-shaped support member 80 fixed to the outer surface of the vehicle body frame 1b. A battery box 49 is mounted and fixed on a mounting portion 80 a extending in the horizontal direction of the support member 80.

Thus, since the 1st accommodating part 77 of 2nd Embodiment is arrange | positioned using the dead space which exists ahead from the lower part of the inclination part 18a of the discharge | emission plate 18 in the foremost position, it accommodates garbage. The arrangement space of the drive device 58 can be increased without reducing the accommodation space S of the box 2.
In addition, since the first storage portion 77 is disposed on the side of the vehicle body frame 1b, the mounting position thereof can be lowered. Therefore, when the dead space is formed low in the vertical direction (for example, the inclined portion) Even when the inclination angle of 18a with respect to the horizontal plane is small), the arrangement space of the driving device 58 can be increased without reducing the accommodation space S of the dust storage box 2.

The present invention is not limited to the above-described embodiments. For example, in each of the above-described embodiments, a part of the driving device 58 (the battery box 49 and the power unit 48) is disposed in the storage portion 76. When the dead space in front of the portion 18a is wide, the entire drive device 58 may be accommodated.
Further, in each of the above embodiments, the storage portion 76 is configured by the first storage portion 64 (77) and the second storage portion 69, but it is sufficient that at least one storage portion is formed.
Further, the first storage portion 64 (77) is disposed on the starboard side of the vehicle, and the second storage portion 69 is disposed on the starboard side of the vehicle, but the first storage portion 64 (77) and the second storage portion 69 are arranged. The arrangement may be reversed.
In each of the above embodiments, the battery box 49 is stored in the first storage portion 64 (77) and the power unit 48 is stored in the second storage portion 69. However, the battery box 49 and the power unit 48 are stored in reverse. May be. At this time, if the fuel tank 68 is disposed below the first storage portion 64 (77), it is effective in that the fire of the fuel tank 68 can be prevented as described above. Further, the first storage portion 64 (77) and the second storage portion 69 may store any one of the valve box 33, the relay box 54, and the controller box 56 constituting the other driving device 58.

Moreover, in the said 1st Embodiment, although the 2nd accommodating part 69 is formed using the baseplate 2b and the main girder 2c, you may make it form with another member like the 1st accommodating part 64. FIG. .
Moreover, in the said 1st Embodiment, although the 1st accommodating part 64 is arrange | positioned in the location which cut | disconnected the main girder 2c of the dust storage box 2, the dead space ahead of the inclination part 18a is widely formed in the up-down direction. (For example, when the inclination angle of the inclined portion 18a with respect to the horizontal plane is large), the first storage portion 64 may be disposed on the main beam 2c without cutting the main beam 2c.
Moreover, in the said 1st Embodiment, although the 1st accommodating part 64 and the 2nd accommodating part 69 cut | disconnect and arrange | positioned a part of the baseplate 2b and the front wall 2d, the dust storage box 2 ahead of the inclination part 18a is arranged. When the dead space formed in the inside is wide, it is also possible to arrange in the dead space in the dust storage box 2. In this case, the 1st accommodating part 64 and the 2nd accommodating part 69 can be arrange | positioned easily, without cut | disconnecting said each part 2a, 2c.
Moreover, in each said embodiment, although the inclination part 18a of the discharge plate 18 is formed in planar shape, you may make it form in circular arc shape.
Moreover, although the loading apparatus T of each said embodiment is a press type which loads dust only with the pushing plate 8, it may be a rotating plate type which loads dust by cooperation with a pushing plate and a rotating plate.

It is the sectional side view which looked at the garbage truck by the 1st Embodiment of this invention from the port side. It is operation | movement explanatory drawing of the pushing board in the said refuse collection vehicle, a push cylinder, and a press cylinder. It is a rear view of the said refuse collection vehicle. It is a hydraulic circuit diagram of the said refuse collection vehicle. It is a front view of the switch box in the cab of the said refuse collection vehicle. It is a control block diagram of the said refuse collection vehicle. It is a PQ diagram which shows control of the electric motor by the controller of the said garbage truck. It is a top view of the said refuse collection vehicle. It is a principal part enlarged view of FIG. 1 which shows the attachment structure of the relay box of the said garbage collection vehicle. It is a top view of the said relay box. It is a principal part enlarged view of FIG. 1 which shows the attachment structure of the 1st accommodating part of the said refuse collection vehicle. It is the front view which looked at the 1st above-mentioned storage part from the front side of vehicles. It is the sectional side view which looked at the said garbage collection vehicle from the starboard side. It is a principal part enlarged view of FIG. 1 which shows the attachment structure of the 2nd accommodating part of the said refuse collection vehicle. It is sectional drawing which looked at the said 2nd accommodating part from the front side of the vehicle. It is sectional drawing seen from the vehicle front which shows typically the arrangement | positioning relationship between the said 1st accommodating part and a 2nd accommodating part. It is the sectional side view which showed typically the front port side of the garbage truck by the 2nd Embodiment of this invention. It is sectional drawing which looked at the refuse collection vehicle of FIG. 17 from the front.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dust collection vehicle 1b Body frame 2 Dust storage box 2a Opening 3 Dust input box 18 Discharge plate 18a Inclined part 46 Battery 58 Drive device 64 First storage part 68 Fuel tank 69 Second storage part 76 Storage part T Loading device

Claims (4)

A garbage storage box mounted on the body frame and having an opening on the rear surface;
A dust throwing box provided to be connected to the opening of the dust storage box;
A loading device for loading the dust thrown into the dust throwing box into the dust storage box;
A driving device having a battery and driving the loading device using the battery as a power source;
In the dust storage box, it is provided so as to be movable back and forth between the foremost position and the rearmost position, and has an inclined part inclined downward and rearward at the lower part. A discharge plate for discharging dust contained in the dust container from the opening;
It is arranged at the bottom of the dust container and is arranged in front of the lower part of the inclined part in a state where the discharge plate is located at the foremost position, and at least a part of the driving device is accommodated. A storage section;
A garbage collection vehicle characterized by comprising: A fuel tank that is provided on one side of the vehicle body frame in the vehicle width direction and stores engine driving fuel;
The refuse collection vehicle according to claim 1, wherein the storage portion is disposed on the other side of the vehicle body frame in the vehicle width direction and stores the battery.   The said storage part has the 1st storage part arrange | positioned at the one side of a vehicle width direction, and the 2nd storage part arrange | positioned at the other side of a vehicle width direction, The garbage of Claim 1 or 2 Collection car.   The refuse collection vehicle according to claim 1, wherein the storage unit is attached to the dust storage box.

Images