JP2009227398A - Garbage collection vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a garbage collection vehicle capable of easily solving a problem on the operation of the vehicle even if a cutting device is mounted on a rear opening of a general garbage collection vehicle. <P>SOLUTION: The garbage collection vehicle has: a garbage collection box mounted on the vehicle; a hopper continuously contacted with an opening of the garbage storage box; a shredder 6 provided at the opening of the hopper so as to be projected from the hopper to the outside in use and stored in the hopper in non-use; a garbage loading device 7 for loading the garbage thrown from the opening into the hopper in the garbage storage box; and a control part 8 for preventing the traveling of the vehicle when detecting that the shredder 6 is not yet stored in the hopper and when detecting that a parking brake of the vehicle is in a released state. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a garbage truck equipped with a cutting device.

  As a waste cutting vehicle for cutting and collecting waste, for example, the one described in Patent Document 1 is known. The waste cutting vehicle includes, in an internal space located behind the driving unit, a cutting unit that cuts waste, and a transfer unit that is connected to a discharge start end side of the cutting unit at a discharge start side. It is provided with an accommodating part connected to the conveyance end side. The waste conveyed by the conveyance unit is pushed into the storage unit by the pushing means.

  On the other hand, conventionally, a dust input box is rotatably connected to a rear opening of the dust storage box mounted on the chassis, and the dust input into the dust input box is loaded into the dust storage box. A garbage truck equipped with a dust loading device is provided (see, for example, Patent Document 2).

Japanese Patent No. 3998679 Utility Model Registration No. 2558547

  In the former waste cutting car, since the cutting part and the transport part are housed in the internal space located behind the driving part, there is no hindrance in the operation of the vehicle even if the cutting part is in use, and handling is possible. Easy. However, since this waste cutting vehicle was developed as a dedicated vehicle for cutting and collecting waste, manufacturing costs tend to increase.

  On the other hand, the latter garbage collection vehicle is generally popular as a waste collection vehicle and has high versatility. Therefore, if a cutting device is mounted on the rear opening of this general garbage collection vehicle, the manufacturing cost can be kept low, but if a cutting device is mounted on the rear opening of this garbage collection vehicle, the cutting device Will protrude to the rear of the garbage truck, and this will cause problems in the operation of the vehicle.

  Accordingly, an object of the present invention is to provide a garbage collection vehicle that can easily solve problems in vehicle operation even when a cutting device is mounted in the rear opening of a general garbage collection vehicle. .

  The dust collection vehicle of the present invention includes a dust storage box mounted on a vehicle, a dust input box connected to an opening of the dust storage box, and an opening of the dust input box at the time of use. A cutting device stored in the dust throwing box when not in use, a dust loading device for loading the dust thrown into the dust throwing box from the opening into the dust containing box, and a cutting device is And a control unit for preventing the vehicle from running when it is detected that the vehicle is not stored in the charging box and the parking brake of the vehicle is released.

  According to the present invention, when the parking brake of the vehicle is released, the vehicle may travel. In this case, if the cutting device is not stored in the dust box, the control unit causes the vehicle to travel. Is prevented. Here, it is desirable that the control unit prevent the vehicle from traveling by issuing an alarm or prohibiting the vehicle from traveling. By issuing an alarm to the worker, the vehicle can be prevented from traveling. The alarm can be performed by lighting or blinking a lamp or sounding a buzzer. In addition, the prohibition of traveling of the vehicle can be performed by operating the brake of the vehicle or stopping the engine by an electromagnetic method.

  Moreover, it is desirable that the control unit prohibits the operation of the dust loading device when it is detected that the cutting device is stored in the dust box. Since the dust loading device operates in the dust throwing box, if the dust loading device is operated when the cutting device is stored in the dust throwing box, the dust loading device may collide with the cutting device. However, when the control unit detects that the cutting device is stored in the dust box, the dust loading device collides with the cutting device by prohibiting the operation of the dust loading device. Can be prevented.

  Further, the cutting device includes a cutting machine main body for cutting waste, a guide base slidably provided at an entrance opening of the cutting machine main body, and an entrance opening of the cutting machine main body by sliding the guide base. And a guide base sensor for detecting that the guide base sensor detects that the entrance opening of the cutting machine body is open. It is desirable that the cutter main body is prohibited from normal rotation and reverse rotation is permitted.

  As a result, when the cutting machine main body is clogged, in order to eliminate this clogging, when the guide table is slid to open the entrance opening of the cutting machine main body, the control unit controls the correctness of the cutting machine main body. Since rolling is prohibited, it is possible to prevent the operator's body from being caught from the entrance opening of the cutter body. Further, since the control unit allows the cutter body to be reversed, the cutter body can be reversed to easily discharge the clog of the cutter body from the inlet opening.

  The cutting machine main body is provided with an opening / closing door for performing maintenance inside the cutting machine main body, and when the control unit detects that the opening / closing door is open, the operation of the cutting machine main body is performed. It is desirable to prohibit. As a result, when the open / close door is opened to perform maintenance of the cutter body, the control unit prohibits the operation of the cutter body, thus preventing the operator's body from being caught in the cutter body. can do.

(1) According to the garbage collection vehicle of the present invention, even when the parking brake of the vehicle is in a released state, it is possible to prevent the cutting device mounted on the rear opening from running backwards, It is possible to easily solve the problem of the vehicle operation and to drive the vehicle safely.

(2) When the control unit detects that the cutting device is stored in the dust box, the operation of the dust loading device is prohibited, so that the dust loading device collides with the cutting device. It is possible to prevent the dust loading device and the cutting device from being damaged.

(3) A cutting machine body for cutting the waste, a guide table slidably provided at an entrance opening of the cutting machine body, and an entrance opening of the cutting machine body by sliding the guide table. When the control unit detects that the entrance opening of the cutting machine body is open, the guide base sensor detects that the part is open. By prohibiting forward rotation of the cutting machine main body and allowing reverse rotation, when the cutting machine main body is clogged, slide the guide stand to remove the clogging. When the entrance opening is opened, the operator's body can be prevented from being caught from the entrance opening of the cutter body. Further, since the control unit allows the cutter body to be reversed, the cutter body can be reversed to easily discharge the clog of the cutter body from the inlet opening.

(4) The cutting machine main body is provided with an opening / closing door for performing maintenance inside the cutting machine main body, and when the control unit detects that the opening / closing door is open, the operation of the cutting machine main body is performed. Since the maintenance of the cutting machine main body is prohibited, it is possible to prevent the operator's body from being caught in the cutting machine main body when the door is opened.

  1 is a side view of a refuse collection vehicle according to an embodiment of the present invention, FIG. 2 is a rear view, FIG. 3 is a side sectional view of the vicinity of a cutting device of the garbage collection vehicle of FIG. 1, and FIG. FIG.

  1 and 2, a garbage collection vehicle 1 according to an embodiment of the present invention includes a cab 2, a dust storage box 3, and a hopper 4 as a dust input box mounted on a vehicle 5. Is. The cab 2 is located in front of the vehicle 5, and the garbage storage box 3 is located behind the cab 2. The hopper 4 is rotatably connected to a rear opening (not shown) of the dust container 3. Further, a shredder 6 as a cutting device for cutting waste is provided in the opening 4 a of the hopper 4. Note that the waste to be cut by the shredder 6 in the present embodiment is mainly a sheet-like material such as paper or film.

  The shredder 6 includes a shredder main body 60 as a cutting machine main body for cutting waste, a guide base 61 slidably provided in an inlet opening 60a of the shredder main body 60, and a lower side ( And a guide base sensor (not shown) for detecting that the inlet opening 60a of the shredder body 60 is open. Note that the downward sliding of the guide base 61 is performed to clear a paper jam. The left and right ends of the shredder main body 60 are open / close doors (covers) 62 a and 62 b for performing maintenance inside the shredder main body 60.

  As shown in FIG. 3, the shredder 6 is supported behind the hopper 4 so as to be rotatable around a rotation shaft 63. The shredder 6 is rotated around the rotation shaft 63 so as to protrude outward from the hopper 4 as shown by a solid line in FIG. 3 when used, and stored in the hopper 4 in a state shown by a two-dot chain line when not used. . The rotating shaft 63 is provided with a coil spring 64 so as to act as an auxiliary force when the shredder 6 is rotated from the inside of the hopper 4 to the outside.

  Further, in the hopper 4, a dust loading device 7 for loading the dust thrown in from the opening 4 a into the dust container 3 is provided. The dust loading device 7 repeatedly performs the loading operation shown in A → B → C → D → A in FIG. 3. The details of the loading operation are as follows.

  First, the dust loading device 7 is reversed from the state shown in FIG. 3A to the state shown in B. Next, the dust loading device 7 descends from the state shown in B to the state shown in C, and primarily compresses the dust. And the dust loading apparatus 7 rotates from the state shown to C to the state shown to D, and performs secondary compression. Next, the dust loading device 7 rises from the state shown in D to the state shown in A, and this series of loading operations is finished. By repeatedly performing this series of reversing, descending, compressing, and ascending loading operations, it is possible to perform the dust loading operation continuously.

  Note that the hydraulic pumps of the shredder 6 and the refuse loading device 7 are connected to the engine of the vehicle 5 via a drive shaft and PTO (Power Take Off) (not shown).

  Next, the control system of the garbage truck 1 in this embodiment is demonstrated. FIG. 5 is a block diagram showing a control system of the garbage truck 1 in this embodiment.

  As shown in FIG. 5, the garbage truck 1 in this embodiment includes a discharge / loading changeover switch 10, a parking brake detection sensor 11, a hopper close detection sensor 12, a loading switch 20, an up switch 21, a down switch 22, an inversion. The switch 23, the stop switch 24, the shredder forward rotation switch 30, the shredder reverse rotation switch 31, the shredder stop lever 32, the shredder non-storage detection sensor 33, the guide base open detection sensor 34, the cover open detection sensor 35, and the like from each input unit. Based on the input signal, a control unit 8 that controls the operation of the alarm lamp 40, the alarm buzzer 41, the shredder switch unit lamp 42, the shredder 6, and the dust loading device 7 is provided.

  The discharge / loading changeover switch 10 is used to switch between discharging from the refuse storage box 3 and stuffing into the dust storage box 3. The parking brake detection sensor 11 detects whether or not the parking brake is operating (ON). The hopper close detection sensor 12 detects that the hopper 4 is closed, that is, the hopper 4 is connected to the dust container 3 as shown by a solid line in FIG. 1, and is turned on when the hopper 4 is closed. When the hopper 4 is opened, that is, as indicated by a two-dot chain line in FIG.

  The loading switch 20 instructs the series of loading operations of A → B → C → D → A in FIG. 3 as described above. The ascending switch 21 instructs the ascending operation of D → A in FIG. The lowering switch 22 instructs the lowering operation of B → C in FIG. The reversing switch 23 instructs the reversing operation of A → B in FIG. The stop switch 24 instructs to forcibly stop the operation of the refuse loading device 7.

  The shredder forward rotation switch 30 instructs to forward the shredder 6 in order to cut the waste. The shredder reverse rotation switch 31 instructs to reverse the shredder 6 in order to remove clogging in the shredder 6. The shredder stop lever 32 instructs to forcibly stop the operation of the shredder 6.

  The shredder non-stored detection sensor 33 detects that the shredder 6 is not stored in the hopper 4 and is constituted by a proximity sensor, for example. The shredder non-storage detection sensor 33 is turned on when the shredder 6 protrudes from the hopper 4 as indicated by a solid line in FIG. 3, and is stored in the hopper 4 as indicated by a two-dot chain line in FIG. Turns off when in state. The guide stand open detection sensor 34 is turned on by detecting the state in which the inlet opening 60a of the shredder 6 is opened, that is, the state in which the guide stand 61 slides downward as shown by the two-dot chain line in FIG. And is turned off in the state shown by the solid line in FIG. The cover open detection sensor 35 is turned on when the open / close doors 62a and 62b are opened.

  The alarm lamp 40 and the alarm buzzer 41 are provided in the cab 2 and issue an alarm to the operator according to the retracted state of the shredder 6 and the operating state of the parking brake. The shredder switch lamp 42 is for notifying the operator whether or not the shredder 6 is operable.

  Next, the dust collection process by the dust collection vehicle 1 having the above-described configuration will be described with reference to the flowcharts of FIGS.

  FIG. 6 is a flowchart when the hydraulic pump is not connected to the engine (PTO is off). When the ignition switch of the engine of the vehicle 5 is turned on, the control unit 8 detects that the shredder 6 is not stored by the shredder non-storage detection sensor 33 (step S100), the alarm lamp 40 in the cab 2 is displayed. Is turned on (step S101). Then, the control unit 8 monitors whether or not the parking brake is operated (ON) by the parking brake detection sensor 11 (step S102), and if it is detected that the parking brake is in the released state, the inside of the cab 2 is detected. The alarm buzzer 41 is sounded (step S103).

  As described above, in the garbage collection vehicle 1 according to the present embodiment, when the ignition switch of the engine of the vehicle 5 is turned on, the alarm lamp 40 is detected when it is detected that the shredder 6 is not stored in the hopper 4. If the parking brake of the vehicle 5 is detected to be released, the alarm buzzer 41 issues an alarm to prevent the vehicle 5 from traveling.

  7 to 9 are flowcharts when the hydraulic pump is connected to the engine (PTO is on). The control unit 8 determines whether or not the shredder 6 is not stored by the shredder non-storage detection sensor 33 (step S200 in FIG. 7). It is determined whether 10 is a discharge side or a loading side (step S201). Here, when the discharge / loading changeover switch 10 is on the discharge side, the discharge operation is possible, but the load operation is not possible (step S202). Even when the discharge / loading changeover switch 10 is on the loading side, all loading operations are not possible, and the discharging operation is also impossible (step S203).

  On the other hand, when the control unit 8 detects in step S200 that the shredder 6 is not stored, that is, the shredder 6 is not stored, that is, protrudes outside from the hopper 4, the alarm lamp 40 in the cab 2 is turned on. (Step 204). Then, the control unit 8 monitors whether or not the parking brake is operated (ON) by the parking brake detection sensor 11 (step S205), and if it is detected that the parking brake is released, the control unit 8 The alarm buzzer 41 is sounded (step S206).

  If the parking brake is operating (ON), it is determined whether the discharge / loading changeover switch 10 is on the discharge side or the load side (step S207). Here, when the discharge / loading changeover switch 10 is on the discharge side, the loading operation and the loading operation are impossible (step S208). On the other hand, when the discharge / loading changeover switch 10 is on the loading side, the control unit 8 turns on the shredder switch unit lamp 42 (step S209) to notify the operator that the shredder 6 is operable. And the control part 8 judges whether the hopper 4 is open by the hopper closing detection sensor 12 (step S210).

  Next, the control unit 8 determines whether or not the loading switch 20 is on (step S211 in FIG. 8). If the loading switch 20 is on, whether the stop switch 24 is on or the lowering switch 22 is on. Alternatively, it is monitored whether or not the shredder non-storage sensor 33 is off (step S212). When all of these conditions are not satisfied, the control unit 8 performs the above-described loading operation (step S213), and when any of these conditions is satisfied, the control unit 8 stops the loading operation (step S214). That is, once the loading switch 20 is turned on, the loading operation is continued until the stop switch 24 or the lowering switch 22 is turned on as long as the shredder non-storage detection sensor 33 is on (the shredder 6 is not stored). Done.

  If the loading switch 20 is not on in step S211, the control unit 8 monitors whether the reversing switch 23 is on, the down switch 22 is on, or the up switch 21 is on (step). S215). When any one of these conditions is satisfied, the control unit 8 causes the dust loading device 7 to perform an ascending operation, a descending operation, or a reverse operation according to the switches 21 to 23 (step S216). On the other hand, when all of these conditions are not satisfied, the control unit 8 stops the operation of the dust loading device 7 (step S217). That is, the predetermined operation of the dust loading device 7 is performed only while the reversing switch 23, the lowering switch 22 or the raising switch 21 is on, and when it is turned off, the operation of the dust loading device 7 is stopped.

  Next, the control unit 8 determines whether or not the shredder forward rotation switch 30 is on (step S218). If it is on, whether the shredder stop lever 32 is on, the shredder reverse rotation switch 31 is on, or the shredder is not stored. It is monitored whether the detection sensor 33 is off, the cover open detection sensor 35 is on, or the guide stand open detection sensor 34 is on (step S219). As long as all these conditions are not satisfied, the control unit 8 causes the shredder 6 to perform forward rotation (step S220), and when any of these conditions is satisfied, the control unit 8 stops the forward rotation operation of the shredder 6. (Step S221). That is, once the shredder forward rotation switch 30 is turned on, the shredder non-storage detection sensor 33 is on (the shredder 6 is not stored) or the cover open detection sensor 35 is off (the open / close doors 62a and 62b are closed). As long as the guide stand open detection sensor 34 is off (in the state where the inlet opening 60a of the shredder 6 is closed), the shredder 6 is in a correct state until the shredder stop lever 32 is turned on or the shredder reverse switch 31 is turned on. Rotate.

  Further, when the shredder forward rotation switch 30 is not on in step S218, the control unit 8 determines whether or not the shredder reverse rotation switch 31 is on (step S222 in FIG. 9). It is monitored whether the cover open detection sensor 35 is on or the shredder non-storage detection sensor 33 is off (step S223). As long as all these conditions are not satisfied, the control unit 8 reversely operates the shredder 6 (step S224). When any of these conditions is satisfied, the control unit 8 stops the reverse rotation operation of the shredder 6 (step S224). S225). If the shredder reverse rotation switch 31 is not on in step S222, the controller 8 stops the reverse rotation operation of the shredder 6 (step S226). That is, as long as the shredder non-storage sensor 33 is on (shredder 6 is not stored), the cover open detection sensor 35 is off (open / close doors 62a and 62b are closed), or the shredder stop lever 32 is off. The reversing operation of the shredder 6 is performed only while the shredder reversing switch 31 is on. When the shredder reversing switch 31 is turned off, the reversing operation of the shredder 6 is stopped.

  As described above, in the garbage collection vehicle 1 according to the present embodiment, the shredder 6 is not stored in the hopper 4 even when the ignition switch of the engine of the vehicle 5 is turned on and the PTO is turned on or off. Is detected by the alarm lamp 40, and when it is detected that the parking brake of the vehicle 5 is released, the alarm buzzer 41 issues an alarm, thereby preventing the vehicle 5 from traveling. When the shredder 6 is stored in the hopper 4, the warning lamp 40 is turned off, so that the operator can know that the garbage truck 1 can travel.

  In addition, when the discharge / loading changeover switch 10 is on the loading side in step S207, the shredder switch lamp 42 is lit in step S209, so that the operator knows that the shredder 6 can be operated. it can. If the shredder 6 is not stored in step S200, that is, if it is stored, the control unit 8 determines whether the discharge / load changeover switch 10 is on the discharge side or the load side in step S201. , S203 makes the loading operation impossible, so that the dust loading device 7 does not collide with the shredder 6.

  Further, if the loading switch 20 is turned on in step S211, and the shredder non-storage sensor 33 is turned off during the loading operation in step S213, the shredder 6 may be stored in the hopper 4. However, since the control unit 8 stops the loading operation in step S <b> 214, the refuse loading device 7 does not collide with the shredder 6. Similarly, during the forward rotation operation of the shredder 6 (step S220) and the reverse rotation operation (step S224), when the unshredder detection sensor 33 is turned off (steps S219 and S223), the control unit 8 is loaded. Is stopped (step S214), the dust loading device 7 does not collide with the shredder 6.

  Further, when the guide stand open detection sensor 34 is turned on during the forward rotation operation of the shredder 6 in step S220, that is, when the control unit 8 detects that the inlet opening 6a of the shredder 6 is open. The forward rotation of the shredder 6 is stopped and prohibited (step S221). Therefore, when clogging occurs in the shredder 6, when the guide base 61 is slid to open the inlet opening 6a of the shredder 6 in order to eliminate the clogging, the work from the inlet opening 6a of the shredder 6 is performed. Involvement of the person's body is prevented. Even in this case (when the guide stand open detection sensor 34 is on), the reverse rotation operation is not stopped and is permitted. Therefore, the shredder 6 is reversed to remove the clogged material from the shredder 6 from the inlet opening 6a. It can be easily discharged.

  When the control unit 8 detects that the doors 62a and 62b are opened by the cover opening detection sensor 35 during the forward rotation operation (step S220) or the reverse rotation operation (step S224) of the shredder 6. Then, the operation of the shredder 6 is stopped and prohibited (steps S221 and S225). Therefore, when the doors 62a and 62b are opened for maintenance of the shredder 6, the operator's body is prevented from being caught in the shredder 6.

  The present invention is useful as a garbage truck that cuts and collects waste.

It is a side view of the refuse collection vehicle in embodiment of this invention. It is a rear view of the refuse collection vehicle of FIG. It is side surface sectional drawing of the cutting device vicinity of the refuse collection vehicle of FIG. It is an enlarged view of the cutting device vicinity of FIG. It is a block diagram which shows the control system of the garbage truck in this embodiment. It is a flowchart when the hydraulic pump is not connected to the engine (PTO is off). It is a flowchart when a hydraulic pump is connected to an engine (PTO is on). It is a flowchart when a hydraulic pump is connected to an engine (PTO is on). It is a flowchart when a hydraulic pump is connected to an engine (PTO is on).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dust collection vehicle 2 Driver's cab 3 Dust storage box 4 Hopper 5 Vehicle 6 Shredder 7 Dust loading device 8 Control part 10 Discharge loading switch 11 Parking brake detection sensor 12 Hopper closing detection sensor 20 Loading switch 21 Lift switch 22 Lower Switch 23 Reverse switch 24 Stop switch 30 Shredder forward switch 31 Shredder reverse switch 32 Shredder stop lever 33 Shredder non-storage detection sensor 34 Guide stand open detection sensor 35 Cover open detection sensor 40 Alarm lamp 41 Alarm buzzer 42 Shredder switch section lamp 60 Shredder Main body 61 Guide base 62a, 62b Open / close door 63 Rotating shaft 64 Coil spring

Claims (5)

A waste bin mounted on the vehicle;
A dust input box connected to the opening of the dust container;
A cutting device that projects from the dust input box to the outside when used, and is stored in the dust input box when not in use.
A dust loading device that loads the dust charged from the opening into the dust container into the dust container;
A controller that detects that the cutting device is not stored in the dust box and that the parking brake of the vehicle is in a released state; Having a garbage truck.   The garbage collection vehicle according to claim 1, wherein the control unit prevents the vehicle from traveling by issuing an alarm or prohibiting the vehicle from traveling.   3. The dust collection according to claim 1, wherein the control unit prohibits the operation of the dust loading device when detecting that the cutting device is stored in the dust throwing box. 4. car. The cutting device includes a cutting machine main body for cutting waste, a guide base slidably provided at an entrance opening of the cutting machine main body, and an entrance opening of the cutting machine main body by sliding the guide base. And a guide base sensor that detects that the is in an open state,
The controller prohibits forward rotation of the cutter body and permits reverse rotation when the guide base sensor detects that the inlet opening of the cutter body is open. The garbage truck according to any one of claims 1 to 3. The cutting machine main body is provided with an opening / closing door for performing maintenance inside the cutting machine main body,
The refuse collection vehicle according to any one of claims 1 to 4, wherein when the control unit detects that the open / close door is open, the control unit prohibits the operation of the cutter body.

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