JPH10291606A - Garbage suction transporting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain simplification of operation by a worker in the case of wedging compressing action therein, without stopping automatic suction by a control device, by automatically wedging the compressing action of garbage in this program. SOLUTION: By a control device 61, after a vessel B and a garbage receiving tank 24 are completed of pressure reduction by a suction device 23, so as to suction transport garbage G in the vessel B into the garbage receiving tank 24 via a garbage transport pipe 13 and a suction pipe 22, secondary air is introduced in the vessel B, also at each time this suction transported garbage amount leads to an integrated capacity necessary for garbage compressing action, garbage compressing action is controlled to be based on a preset program. In a garbage compressing action not-set section at garbage suction transport time without setting garbage compressing action in the program by this control device, in the case of providing a request of garbage compressing action from a worker, a compression requirement operating switch is on-operated, a garbage compression request is commanded to the control device, as in this request, the garbage compressing action is automatically wedged in the garbage compressing action non-set section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage suction transportation device for sucking and transporting garbage stored in a garbage storage container to a garbage storage tank of a garbage suction truck. The present invention relates to a measure for simplifying an operation for interrupting a dust compression operation to be compressed in a program during automatic suction according to an operator's judgment.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Application Laid-Open No. 6-286804.
In the garbage suction transport device for sucking and transporting garbage, a garbage suction truck is connected to a garbage storage container installed in an apartment house or the like via a garbage transport pipe, and a discharge gate for the garbage storage container is disclosed. Is opened and the garbage storage container is vacuumed to a predetermined negative pressure value by a suction device of the garbage suction vehicle, and then secondary air is introduced into the vacuumed garbage storage container, whereby the garbage storage container The refuse is suction-transported through the refuse transport pipe to a refuse storage tank of a refuse suction truck.

[0003] Further, when the refuse is transported to a certain extent in the refuse storage tank by the refuse suction transport described above, the refuse is compressed by the compression plate provided in the refuse storage tank to efficiently remove the refuse. It is stored in the storage tank. This compression operation calculates the amount of refuse stored in the refuse storage tank from the refuse storage container based on the size of the refuse storage container or the suction pattern during refuse suction transport,
Each time the calculated amount of waste reaches a waste storage amount that requires a preset waste compression operation, the waste is automatically performed.

The above-mentioned waste suction transport and waste compression operation are both controlled by the control device, and the waste suction operation is performed in several times in a waste compression operation non-set section where the waste compression operation is not set, Each time the amount of waste reaches a preset waste storage amount, a compression operation is automatically performed so that the waste introduced into the waste storage tank by suction is not blocked near the introduction port.

[0005]

However, the storage ratio of the refuse stored in the refuse storage container is not always constant,
In some cases, such as during the year-end and New Year holidays, garbage is stored far beyond the specified amount of garbage storage containers. In that case, the refuse in the refuse storage container will be stored in the refuse storage tank at a faster pace than the amount of refuse stored by suction transport calculated in advance by the control device.
The waste may be blocked near the inlet of the waste storage tank. If the waste is blocked near the inlet, not only the pressure inside the waste storage container cannot be reduced to a negative pressure, but also if the compression operation is performed, the blocked waste near the inlet goes around the back side of the compression plate and falls for maintenance. Becomes very troublesome.

[0006] On the other hand, workers involved in garbage suction transportation
Based on the experience, it is possible to recognize that the amount of waste in the waste storage container is larger than usual by abnormal noise and vibration generated from the waste suction truck, and it is also possible to foresee the blockage of the waste in advance.

Therefore, it is conceivable to prevent the blockage of the waste in advance by interrupting the compression operation of the waste according to the operator's judgment. However, the refuse compression operation is programmed by the control device to be performed when a predetermined amount of refuse is suctioned and transported according to the storage amount based on the specified value of the refuse storage tank. When interrupting the refuse compression operation into the non-set refuse compression operation non-setting section, it is necessary to release the control by the control device and perform the refuse compression operation by manual operation.

As described above, when the dust compression operation is interrupted by the manual operation, the program during the automatic suction by the control device is stopped, and then the waste compression operation by the manual operation is interrupted, and then the control device is again operated. , And the operation at the time of interruption of the garbage compression operation becomes very troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the foregoing, and it is an object of the present invention to provide a configuration in which a dust compression operation can be automatically interrupted in a program without stopping automatic suction by a control device. Another object of the present invention is to simplify the operation of an operator when interrupting the dust compression operation.

[0010]

Means for Solving the Problems In order to achieve the above object, a solution taken by the invention according to claim 1 is provided as a garbage suction transport device in a garbage storage place, and a garbage storage container for storing garbage. A docking station that communicates with a discharge port of the refuse storage container via a refuse transport pipe, and a garbage suction vehicle that stops at the docking station and suction-transports refuse stored in the refuse storage vessel via the refuse transport pipe. And

The garbage suction truck has a garbage storage tank containing a compression plate for performing a garbage compressing operation, one end connected to the garbage storage tank, and the other end detachably connected to the docking station. A suction pipe, a suction device for reducing the pressure of the refuse storage container and the refuse storage tank, and, when the refuse storage container and the refuse storage tank reach a predetermined negative pressure value by the suction device, the refuse storage container The secondary air is introduced into the garbage storage container so that the garbage is transported to the garbage storage tank through the garbage transport pipe and the suction pipe, and the amount of garbage in the garbage storage tank that is stored by the aspiration transport requires a garbage compression operation. Every time the virtual waste storage amount is reached, the waste compression operation by the compression plate is controlled to compress the waste in the waste storage tank based on a preset program. When there is a request for a waste compression operation from a worker in a waste compression operation unset section at the time of waste suction transportation in which the waste compression operation by the control device is not set in the above program, Interruption means for instructing a waste compression request and automatically interrupting the waste compression operation in a section in which the waste compression operation is not set is provided.

Thus, according to the first aspect of the present invention, when the garbage is stored in the garbage storage container in a much larger amount than the specified amount, such as at the end of the year, the garbage in the garbage storage container is Therefore, the waste is stored in the waste storage tank at a faster pace than the virtual waste amount calculated in advance by the control device. At this time, the operator can easily recognize from the experience of the worker that the amount of waste in the waste storage container is larger than usual due to abnormal noise and vibration generated from the waste suction truck, and it is necessary to perform a waste compression operation based on the recognition of the worker. It is determined that there is a waste compression request to the control device, and the waste compression operation automatically interrupts the section where the waste compression operation is not set, and the waste storage tank is closed before the waste storage tank introduction port is blocked by the waste. The refuse sucked and transported inside is compressed by the compression plate. As a result, the pressure inside the refuse storage container cannot be reduced to a negative pressure, and the refuse near the introduction port is prevented from wrapping around the back of the compression plate and dropping due to the compression operation after the refuse is closed, making maintenance very easy. It becomes something. As described above, when it is desired to interrupt the refuse compression operation according to the operator's judgment, the program during the automatic suction, that is, the refuse compression operation can be interrupted in the refuse compression operation non-setting section without stopping the automatic suction by the control device. When the dust compression operation is interrupted, the troublesome operation of temporarily stopping the suction by the blower, performing the dust compression operation by manual operation, and restarting the suction of the blower again is eliminated.

[0013] The solution taken by the invention of claim 2 is as follows.
In addition to the constituent features of the invention described in claim 1, the control device is
When the waste compression operation is interrupted by the interruption means in the waste compression operation non-set section, the waste compression operation non-set section is newly updated based on the interrupted waste compression operation, and the updated waste compression operation is not performed. At the time of completion of the setting section, the dust compression operation after the interruption is sequentially rearward-fed as set and performed.

According to the second aspect of the present invention, after the interruption of the waste compression operation by the interrupt means, the section in which the waste compression operation is not set is newly updated based on the interrupted waste compression operation. The waste compression operation interruption section does not shorten the waste compression operation non-set section, and the newly updated waste compression operation non-set section is sufficiently sucked and transported, and the waste in the state with insufficient waste storage capacity Compression operation is prohibited.

According to a third aspect of the present invention, there is provided:
In addition to the constituent features of the invention described in claim 1, the control device is
Even if the waste compression operation is interrupted in the waste compression operation unset section by the interrupt means, the waste compression operation unset section is continued based on the waste compression operation before the interruption, and the continued waste compression operation unset section is continued. At the time of completion, the configuration is such that the dust compression operation is performed as set in advance irrespective of the interrupted dust compression operation.

According to the third aspect of the present invention, regardless of the interruption of the waste compression operation by the interrupt means, the waste compression operation is not performed based on the waste compression operation before the interruption as set in advance. Since it is automatically performed when the set section is continued, the dust compression operation is performed at the timing expected by the worker, and the subsequent dust compression operation by the interrupt means is also appropriate without the operator feeling uncomfortable. Can be determined.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a configuration of a refuse suction / transport apparatus according to an embodiment of the present invention. This refuse suction / transport apparatus 1 converts garbage G packed with household garbage into a vessel B as a refuse storage container. The temporarily stored refuse G is sucked by a suction device 23 (described below) of the refuse suction vehicle V, and is stored in a refuse storage tank 24 described below.

The vessel B is provided in a garbage storage X below the building (not shown). An opening 5 is formed in the upper wall of the vessel B, and the lower end of a chute 6 extending vertically over each floor of the building is connected to the opening 5. The chute 6 is provided with an input port 7 (only one location is shown in the figure) for each required floor. The opening 5 is provided with a closing gate 8 for opening and closing the opening 5, and the closing gate 8 is opened and closed by the expansion and contraction of the air cylinder 9. In addition, the input gate 8
, A detector (not shown) such as a limit switch for detecting the opening / closing operation of the closing gate 8 is provided.

At the bottom of the side wall of the vessel B, a discharge port 11 is provided.
The discharge port 11 is connected to a refuse transport pipe 13 via a funnel-shaped connecting member 12. A discharge gate 14 for opening and closing the waste transport pipe 13 is provided near the discharge port 11 of the waste transport pipe 13.
Are opened and closed by the expansion and contraction of the air cylinder 15. A detector (not shown) such as a limit switch for detecting the opening / closing operation of the discharge gate 14 is provided near the discharge gate 14.

A secondary air inlet 16 is formed below the side wall of the vessel B. The secondary air inlet 16 is provided at one end of the inlet pipe 17, and the other end of the inlet pipe 17 is open to the atmosphere so that outside air can be supplied into the vessel B. The introduction pipe 17 is provided with a secondary valve 18 for opening and closing the introduction pipe 17, and the secondary valve 18 is opened and closed by the expansion and contraction of an air cylinder 19. A detector (not shown) such as a limit switch for detecting the opening / closing operation of the secondary valve 18 is provided near the secondary valve 18.

The refuse transport pipe 13 extends to the docking station D, and is detachably connected to a suction pipe 22 extending from the refuse suction truck V by a coupling 21.

The air cylinders 9, 15, 19
Is connected via a docking station D to an air source (not shown) such as a compressor tank provided in the refuse suction truck V by an air hose (not shown). The air source may be provided on the vessel B side.

Here, the configuration of the dust suction vehicle V will be described with reference to FIG.

The refuse suction truck V has a suction device 23 and a refuse storage tank 24 for storing refuse G sucked by the suction device 23, which are mounted on the front and rear of the chassis Va, respectively.

As shown in FIG. 7, the suction device 23 comprises:
One end is connected to the refuse storage tank 24, and the other end is provided with a suction passage 31 that opens to the atmosphere. A water scrubber 32 is interposed in the suction passage 31, and the suction passage 3 closer to the open air side (the other end side) than the water scrubber 32.
1 is provided with a blower 33. A silencer 34 is interposed in the suction passage 31 on the side closer to the atmosphere than the blower 33. The blower 33 operates at a rotation speed corresponding to the engine rotation speed of the dust suction vehicle V when the engine is driven, and the dust storage tank 24 and the vessel B are made to have a negative pressure by the operation of the blower 33. .

The other end of an open pipe 35, one end of which is open to the atmosphere, is connected to the suction passage 31 closer to the refuse storage tank 24 (one end) than the above water task rubber 32. An open-to-air valve 36 for opening and closing 35 is provided. In the suction passage 31 between the water scrubber 32 and the blower 33, a pressure sensor 37 for detecting a negative pressure value by the blower 33 is provided. Further, the blower 3 is provided between the suction passage 31 on the dust storage tank 24 side (suction side) with respect to the blower 33 and the suction passage 31 on the atmosphere open side (discharge side) with respect to the blower 33.
3 is provided. A blower unload valve 39 is interposed in the bypass pipe 38. By controlling the opening and closing of the blower unload valve 39, the negative pressure value of the blower 33 is maintained at a predetermined level during the suction and transportation of the refuse G described later. ing.

As shown in FIG. 2, the suction pipe 22 is provided at an inlet 4 opening at the front end of the upper wall of the refuse storage tank 24.
An elbow-shaped swivel tube 41 connected to the rotary shaft 0 is provided, and the swivel tube 41 is rotatable around a vertical axis. A proximal end of a first flexible tube 42 is connected to a distal end of the revolving tube 41 and freely flexes from a stored state extending in the vehicle longitudinal direction.
The distal end of the first flexible tube 42 is connected to the base end of a tilting tube 43 extending in the front-rear direction of the vehicle body. The tilting tube 43 is vertically tiltable by the expansion and contraction of a tilting cylinder 47. A telescopic tube 44 is included in the tilting tube 43, and the distal end of the telescopic tube 44 expands and contracts horizontally with respect to the tilting tube 43. The distal end of the telescopic tube 44 is connected to the proximal end of a second flexible tube 45 that is freely flexible from a stored state extending in the vertical direction. That is, the suction pipe 22 includes the swirling pipe 41, the first flexible pipe 42, the tilting pipe 43,
It is constituted by the telescopic tube 44 and the second flexible tube 45.

During the dust suction transportation, the suction pipe 22 rotates the swivel pipe 41 and the tilt pipe 43 while the dust suction truck V is stopped at the docking station D. The distal end of the suction pipe 22 (the second flexible pipe 45) is easily connected to the docking station D by the expansion / contraction operation of the expansion / contraction pipe 44, and the refuse storage tank 24 and the vessel B communicate with each other via the refuse transport pipe 13. It has become.

An opening 2 is provided at the rear end of the refuse storage tank 24.
4a is formed, and the opening 24a is configured to be openable and closable by an opening / closing door 46 supported by an upper end edge thereof and opening downward and rearward. The opening and closing door 46 is opened and closed by the expansion and contraction of an opening and closing cylinder 48. The opening / closing door 46 is provided with a holder 46a for holding the distal end of the suction tube 22 (the distal end of the second flexible tube 45) in a stored state.

A compression plate 51 is provided inside the refuse storage tank 24 so as to be slidable in the vehicle longitudinal direction. A telescopic cylinder 52 as a hydraulic drive means is provided between the front surface of the compression plate 51 and the front wall of the refuse storage tank 24.
Are connected. Then, the compression plate 51 is moved forward and backward by a telescopic cylinder 52 so that a dust suction position (FIG.
2 is slidably moved between a position indicated by a solid line and a rear discharge position (a position indicated by a two-dot chain line in FIG. 2). The telescopic cylinder 52 is provided with a hydraulic pressure sensor (not shown) for detecting the hydraulic pressure of the telescopic cylinder 52.

The compression plate 51 has a chute portion 51a on the upper rear surface and a compression portion 51b on the lower rear surface. When the compression plate 51 is positioned at the dust suction position at the start of dust suction, the chute portion 51a is provided at the base end of the suction pipe 22 (the base end of the swirl pipe 41).
, The dust G sucked through the suction pipe 22 is blown to the rear side in the dust storage tank 24 by the chute portion 51a together with the inertia force due to the suction.

As shown in FIG. 8, a first suction port 53 is formed in the upper wall near the introduction port 40 of the refuse storage tank 24, and is formed at a corner between the upper wall and the front wall. Also, second and third suction ports 54 and 55 are formed respectively. The first suction port 53 passes through the second and third suction ports 54, 55 at the corners of the refuse storage tank 24, and passes through the suction passage 31.
And the above-mentioned blower 3
3, the suction ports 53 to 55 and the introduction ports 4
0, Vessel B via suction pipe 22 and waste transport pipe 13
The inside air is sucked, and thereby the vessel B and the refuse storage tank 24 are made to have a negative pressure.

A filter 56 such as a punched metal is provided in the first suction port 53 on the upper wall of the refuse storage tank 24, and the refuse G sucked into the refuse storage tank 24 during the suction transportation is subjected to the first suction. Suction passage 31 from mouth 53
To avoid intruding into the side. A cover 57 is attached to the upper surface of the upper wall of the refuse storage tank 24, and the cover 57 forms a suction passage between the first suction port 53 and the second suction port 54. .

As shown in FIGS. 1 and 2, a control device 61 is provided in the refuse suction vehicle V. The control device 61 receives operation signals from operation switches 63 to 65 provided on an operation panel 60 described later, and receives detection signals from the detectors and the pressure sensor 37 provided on the vessel B, and the like. Is to be entered. The control device 61 controls the opening and closing of the input gate 8, the discharge gate 14, and the secondary valve 18 of the vessel B based on these detection signals and the like, and sequentially sucks and transports the refuse G in the vessel B to the refuse storage tank 24. It is configured to be. The dirt G from the vessel B is transported by suction according to a suction pattern that is repeatedly performed according to the size of the vessel B.

In the control device 61, the virtual waste amount Q (see FIG. 5) that will be suction-transported to the waste storage tank 24 by the waste suction-transport operation (suction pattern) from the vessel B when the waste G is suction-transported. It can be obtained from the size of the vessel. Therefore, the control device 61
By recognizing the size of the vessel B performing the garbage suction and transport operation, the virtual garbage amount Q stored in the garbage storage tank 24 can be grasped from the vessel B. The control device 61 is controlled to perform the dust compression operation of the compression plate 51 by the telescopic cylinder 52 at a predetermined timing set in advance. In this dust compression operation, the compression plate 51 is moved backward from the dust suction position to the dust discharge position, and the dust G in the waste storage tank 24 is compressed while being moved backward by the front surface of the compression plate 51. Each time the virtual waste amount Q is accumulated and reaches a cumulative capacity ΣQ (see FIG. 5) that requires a preset waste compression operation, the process is performed. In performing the dust compression operation by the compression plate 51, first, a backwash operation is performed. This backwash operation is performed in the garbage storage tank 2
After the pressure of the air 4 is reduced to a negative pressure, the atmosphere release valve 36 is opened to introduce outside air from the open pipe 35 into the refuse storage tank 24 through each of the suction ports 53 to 55.
The attached matter such as paper and tape stuck to the filter 56 is removed, and the dust G near the first suction port 53 is removed. If the dust G remains in the suction pipe 22, the dust G is docked. This is an operation of temporarily returning to the station D side. In this case, if the accumulated volume ΣQ is not reached with the virtual waste amount suction-transported by the suction pattern from the single vessel B, the waste G is sequentially suction-transported over a plurality of vessels, and the total amount of the waste G is reduced. The cumulative capacity required for the compression operation is set to ΣQ.

Further, as shown in FIG. 3, the control device 6 is provided on the right side of the casing 23a of the suction device 23.
1 is provided with an operation panel 60 for outputting a command signal.
A monitor 62 is disposed above the operation panel 60. The monitor 62 displays the state of suction of the refuse G by the suction device 23 and the number of the vessel B (e.g., 10
No. etc.) are displayed. This monitor 6
The number of the vessel B displayed in 2, more precisely, the number of the vessel number Bm to be described later, is subtracted and updated each time the transport is completed by repeatedly performing a predetermined suction pattern according to the size of the vessel B, and The number of the vessel number Bm which is one smaller than B is displayed.

On the other hand, a suction start operation switch 63 for starting suction by the suction device 23 is provided at the lower left end of the operation panel 60. This suction start operation switch 6
3 is turned ON when suction transport of the refuse G from the vessel B is started, and the refuse storage tank 24
Each time the virtual waste amount Q accommodated in the storage plate reaches the cumulative capacity ΔQ that requires a preset waste compression operation, the compression plate 51
Is automatically performed so that the suction and transport of the waste G into the waste storage tank 24 can be performed smoothly.

In the center of the lower part of the operation panel 60, a dust compression request operation switch 64 as an interruption means is provided. The refuse compression request operation switch 64 is turned ON when it is desired to interrupt the refuse compression operation in the refuse compression operation unset section at the time of refuse suction transportation in which the refuse compression operation is not set, and the refuse compression operation is performed as requested. It is done automatically. The dust compression operation by the dust compression request operation switch 64 is performed by the blower 3 in a suction pattern that is repeatedly performed in a section where the dust compression operation is not set.
When the refuse compression request operation switch 64 is turned ON before the negative pressure value of No. 3 reaches the maximum value, the refuse compression operation is interrupted before the refuse G is sucked and transported from the refuse storage tank 24, while the negative pressure value of the blower 33 When the dust compression request operation switch 64 is turned ON after the pressure reaches the maximum value, the dust compression operation is interrupted before the negative pressure value of the blower 33 in the next suction pattern reaches the maximum value. Then, when the waste compression operation is interrupted in the waste compression operation non-set section by the waste compression request operation switch 64, the control device 61 sets the waste compression operation unset section based on the interrupted waste compression operation. Is updated, and at the time of completion of the updated waste compression operation non-set section, the waste compression operation after the interruption is controlled to be sequentially rearward-fed as set. That is, each time the dust compression operation is interrupted in the dust compression operation unset section, the dust compression operation unset section is newly updated based on the interrupted dust compression operation.

Further, at the lower right end of the operation panel 60,
Suction by the suction device 23 or dust G by the compression plate 51
Is provided with a stop operation switch 65 for stopping the compression operation. The stop operation switch 65 is turned on when ending the suction and transportation of the refuse G from the vessel B or when stopping the compression operation of the refuse G.

Next, the control by the control device 61 when the waste G is sucked and transported from the plurality of vessels B to the waste storage tank 24 and compressed will be described with reference to the time chart of FIG. 4 and the flowcharts of FIGS. I do.

In this case, the refuse storage tank 24 is empty, the refuse suction truck V stops at the docking station D of the refuse storage area X, and the turning operation of the swivel pipe 41, the tilting operation of the tilting pipe 43, and the expansion and contraction. A state in which the distal end of the suction pipe 22 (second flexible pipe 45) is connected to the docking station D by the expansion and contraction operation of the pipe 44, and the waste storage tank 24 and the vessel B are communicated via the waste transport pipe 13. Has become. Further, by connecting the suction pipe 22 and the docking station D, the number and size of the vessels B in the refuse storage area X, the number of the vessel that previously transported the refuse G by suction, and the refuse transport pipe 13 to each vessel B The information on the garbage storage area X side such as the length is the control device 6 of the garbage suction vehicle V
1 is input. Further, an operation signal from each operation switch of the operation device, a detection signal from each detector of the vessel B, the pressure sensor 37, and the like can be input to the control device 61.

First, step S in the flowchart of FIG.
In 1, the total number of vessels B in the refuse storage area X, for example, “18” is input to a counter CNT that subtracts and updates each time suction is completed, and the monitor 62 of the operation panel 60 displays the vessel B in the same manner as the counter CNT. The maximum value of the vessel number Bm to be subtracted and updated each time suction is completed is displayed. In this case, the maximum value of the vessel number Bm “first
No. 8 is displayed, but when continuing the previous suction and transportation of the refuse G, the continuation number at the time of the previous suction and transportation is stored in the garbage storage area X, for example, the previous refuse G
Is completed at the vessel number B10, the vessel number B at which the current suction and transport of the refuse G is started.
9 (the maximum value of the current vessel number) is displayed on the monitor 62. Therefore, the counter CNT is a variable for counting the number of unsucked vessels, and the vessel number Bm is a variable for specifying the vessel B to be sucked. Therefore, the values of both variables do not always match.

Next, in step S2, the input gate 8 of only the vessel B for starting the suction and transportation of the refuse G is closed, and the discharge gate 14 is opened. In step S3, the size of the vessel B is reduced to the inside. The stored waste amount is written as a virtual waste amount Q. afterwards,
In step S4, the suction start operation switch 63 of the operation panel 60 is turned on to operate the blower 33 of the suction device 23. Thereafter, in step S5, it is determined by the pressure sensor 37 whether the negative pressure of the blower 33 is a predetermined maximum negative pressure value, and the pressure in the vessel B is maintained until the negative pressure of the blower 33 becomes the predetermined maximum negative pressure value. Reduce the pressure. After completion of the depressurization in the vessel B, the process proceeds to step S6.

In step S6, the compression flag FLG for starting a compression operation routine to be described later is checked. If the compression flag FLG is "0", the flow advances to step S7. The secondary valve 18 is opened, and secondary air is introduced into the vessel B from the secondary air inlet 16. Thereby, Vessel B
While the refuse G is tumbled, the refuse G is suction-transported from the discharge gate 14 to the refuse storage tank 24 through the refuse transport pipe 13 and the suction pipe 22, and a one-cycle suction pattern is performed.

Thereafter, in step S8, it is determined whether or not re-suction is necessary according to the size of the vessel B. If YES is determined that re-suction is necessary, the flow returns to step S4 to change the suction pattern. While repeating (in this case,
(The ON operation of the suction start operation switch 63 is unnecessary.) If not, the process proceeds to step S9. In step S9, the cumulative capacity ΣQ of the virtual waste quantity Q when the suction transport of the waste G is performed over the plurality of vessels B, and the full capacity that can be stored in the waste storage tank 24 (the waste compression operation must be performed). If the capacity is equal to the tank capacity, but the capacity is larger than that for performing the garbage compression operation). In this case, if the suction and transportation of the refuse G is performed over a plurality of vessels B, the cumulative capacity ΣQ of the virtual refuse amount Q increases each time the refuse G is suctioned and transported. Then, in step S9,
When the accumulated capacity ΣQ exceeds the full capacity of the refuse storage tank 24, the process proceeds to step S18, where “full” is displayed on the monitor 62 of the operation panel 60, and the control is terminated. in this case,
The accumulated capacity ΣQ is a variable that is cleared to “0” when the waste G in the waste storage tank 24 is discharged.

On the other hand, if the determination in step S9 is NO, ie, when the cumulative capacity ΣQ of the virtual waste amount Q is smaller than the full capacity of the waste storage tank 24, step S1 is performed.
At 0, when the garbage G is sequentially sucked and transported into the garbage storage tank 24 according to a suction pattern that is repeatedly performed, the garbage that can suck the garbage G without the clogging trouble near the inlet 40 of the garbage storage tank 24 without the garbage compression operation. The virtual waste amount Q is subtracted from a margin value M having a margin to some extent from the capacity limit value. In this case, the margin value M is
Garbage storage tank 2 in the same way as the cumulative capacity of virtual waste amount QΣQ
4 is a variable that is initialized to a predetermined value when the dust G is discharged from the inside, and is an empirical value obtained by an experiment.

Then, in step S11, the sign of the subtraction value (M−Q) is determined in step S10. If the virtual waste amount Q is smaller than the margin value M and the subtraction value (M−Q) is positive, the determination is made as NO. In this case, it is determined that the suction transport of the refuse G is possible without performing the refuse compression operation, and the process proceeds to step S13.

On the other hand, if the virtual waste amount Q is larger than the allowance value M and the subtraction value (M−Q) becomes negative, the suction port 40 of the waste storage tank 24 is continued when the waste G is continuously suctioned and transported. It is determined that a blockage may be caused nearby, and the process proceeds to step S12. Then, in this step S12,
The compression flag FLG in step S6 is set to "1". The compression flag FLG is initialized to “0” when the suction pipe 22 is connected to the docking station D for the first time.

Thereafter, in step S13, the counter CNT is checked to determine whether or not the waste G in all the vessels B of the waste storage X has been sucked and transported once. That is, even if suction transport is started from any vessel B subsequent to the previous suction transport of the refuse G, if the counter CNT is "1", it means that all the vessels B of the refuse storage area X have been cycled. Therefore, if the determination in step S13 is YES, that is, the counter CNT = 1, in step S19, "Vessel suction end" is displayed on the monitor 62 of the operation panel 60, and the operator who views the display displays the operation panel 60. By turning on the stop operation switch 65, the blower 33 of the suction device 23 is stopped. On the other hand, if the determination in step S13 is NO that the counter CNT is not 1, the bessel number Bm is decremented by one in step S14, and the process proceeds to step S15.

In this step S15, it is determined whether or not the vessel number Bm is smaller than "0". If the vessel number Bm is smaller than "0" (YES), the vessel number Bm is discarded in step S16. After returning to the maximum value of the vessel number of the storage base X, the process proceeds to step S17. In step S17, similarly to the case where the determination in step S15 is NO where the Bessel number Bm is larger than "0", the counter CNT is decremented by one and the process returns to step S3.

On the other hand, if the determination in step S6 is YES, that is, the compression flag FLG = 1, then step S2
After performing the backwash operation at 0, a dust compression operation is performed at step S21. After the refuse storage tank 24 is made to have a negative pressure by this backwashing operation, the atmosphere release valve 36 is opened, and the outside air from the open pipe 35 is introduced into the refuse storage tank 24 via the suction ports 53 to 55, Debris and dust G near the first suction port 53 are removed, and the dust G in the suction pipe 22 is returned to the docking station D side.

The dust compression operation in step S21 will be described later. After the dust compression operation is completed, in step S22, the compression flag FLG is cleared to "0", and the flow advances to step S23. In this step S23,
It is determined by the series calculation flag KF whether or not to perform a series calculation for gradually decreasing the interval of the dust compression operation in step S21. The series calculation flag KF is a flag that is set to “1” when a state in which dust G remains in the dust storage tank 24 to some extent is detected in a dust compression operation routine described later. The series calculation flag KF is cleared to “0” when the waste G in the waste storage tank 24 is discharged. That is, when the series calculation flag KF is “0” in step S23, it is determined that there is not much garbage G remaining in the garbage storage tank 24, and step S27 is performed.
Proceed to.

In step S27, the initial value of the margin value M in step S10 is determined. In particular,
The initial value of the margin value M is determined by the compression reference value Ct reset to a predetermined value when the waste G in the waste storage tank 24 is discharged according to the size of the waste storage tank 24. That is, the predetermined value of the compression reference value Ct is the same as the initial value of the margin value M, and the margin value M, which has become a negative value for performing the dust compression operation, is returned to the value of the compression reference value Ct.

By the above steps S10 to S12, step S6 and steps S23 and S27, as shown in FIG. 4, the interval for performing the dust compression operation in the first suction / compression cycle is set. Specifically, when the garbage G is suction-transported from the vessel B having the same size, the compression flag FLG is set to “1” for each of the three vessels B, and the garbage compression operation is performed at a fixed interval, that is, the vessel number. This is performed before the maximum negative pressure by the blower 33 at B15 and B12.

On the other hand, if the determination in step S23 is that the series calculation flag KF is "1", that is, if the garbage G remains in the garbage storage tank 24 to some extent, the process proceeds to step S24. In step S24, the compression reference value Ct is subtracted by a fixed amount K. Then, step S25
, It is determined whether or not the compression reference value Ct is a lower limit value (lower limit value ≧ constant amount K). If the compression reference value Ct is not the lower limit value, ie, NO, the process proceeds to step S27, while the compression reference value Ct is Is the lower limit, the compression reference value Ct is set to the lower limit in step S26.
Thus, for example, when the garbage G is suctioned and transported from the vessel B having the same size after the series calculation flag KF becomes “1”, the interval at which the compression flag FLG is set to “1” is determined by the garbage compression operation. Is gradually reduced according to the number of times of performing. Therefore, in steps S10 to S12, step S6, and steps S23 to S27, the compression reference value Ct is decremented by a fixed amount K every time the dust compression operation is performed in the second suction / compression cycle as shown in FIG. As a result, the interval of the dust compression operation is gradually set. Specifically, when the garbage G is sucked and transported from the vessel B having the same size, the compression flag FLG indicates the vessel number B9,
It is set to "1" at B7, B5 and B3, and the garbage compression operation is performed by the vessel numbers B9, B7, B5 and B3.
Is performed before the maximum negative pressure by the blower 33.

Next, the compression operation in step S21 will be described with reference to the flow chart of FIG.

First, in step S31, the blower 33
Is temporarily stopped. Next, in step S32, the telescopic cylinder 52 is extended to move the compression plate 51 backward to the discharge position (the position indicated by the two-dot chain line in FIG. 2), and time measurement is started in step S33.

Thereafter, in step S34, the hydraulic pressure of the telescopic cylinder 52 is reduced by the hydraulic pressure sensor to the hydraulic pressure limit value P1.
(E.g., about 80% of the maximum hydraulic pressure) is determined, and if the hydraulic pressure of the telescopic cylinder 52 is equal to or higher than the hydraulic pressure limit value P1 (YES), it is determined that the dust compression operation by the compression plate 51 is completed. After making a determination, the process proceeds to step S36. on the other hand,
If the determination in step S34 is NO that the hydraulic pressure of the telescopic cylinder 52 is less than the hydraulic pressure limit value P1, it is determined in step S35 whether the time measurement in step S33 has expired. In the determination in step S35, the amount of backward movement of the compression plate 51 until the compression plate 51 reaches the maximum compression position is measured in time. By moving the compression plate 51 backward until the compression plate 51 reaches the maximum compression position, the dust compression operation is performed. To do.

If the determination in step S35 is NO that the time is not over, the process waits until the time is over.
Proceed to. In this step S36, the hydraulic pressure of the telescopic cylinder 52 is increased by the hydraulic pressure sensor to the series calculation start hydraulic pressure P2 (P2
<P1) It is determined whether or not it is not less than. If the determination in step S36 is YES that the hydraulic pressure of the telescopic cylinder 52 is equal to or higher than the series calculation start hydraulic pressure P2, it is determined that some dust G is left in the waste storage tank 24, and in step S37. Then, the series calculation flag KF in step S23 is set to "1".

Thereafter, the determination in step S36 is
As in the case of NO in which the hydraulic pressure of the telescopic cylinder 52 is less than the series calculation start hydraulic pressure P2, the process proceeds to step S38, where the telescopic cylinder 52 is contracted to move the compression plate 51 forward. Then, step S3
In 9, after waiting for the compression plate 51 to be positioned at the dust suction position (the solid line position shown in FIG. 2), the dust compression operation ends, and the process proceeds to step S22.

Thus, the intervals at which the dust compression operation is performed in the first suction / compression cycle are set by steps S10 to S12, step S6, and steps S23 and S27. Specifically, when the garbage G is sucked and transported from the vessel B having the same size, the compression flag FLG is set to “1” for each of the three vessels B.

Then, the compression flag F in step S6
LG indicates that the compression request operation switch 64 of the operation panel 60 is ON.
It is set to “1” by the operation. The compression request operation switch 64 causes an error in the value of the virtual waste amount Q, for example, when the waste G is stored far beyond the specified capacity of the vessel B, and in the setting of the waste compression operation based on the series calculation, When the worker judges that it is not in time, it is turned ON by the judgment of the worker,
The refuse compression operation is automatically interrupted in the refuse-compression-unset section as determined by the worker. And
The refuse compression operation by the ON operation of the compression request operation switch 64 is performed before the maximum negative pressure by the blower 33 before suctioning and transporting the refuse G of the vessel B under reduced pressure and after the maximum negative pressure by the blower 33. If there is, it is interrupted after waiting for the next maximum negative pressure, and only the ON operation of the compression request operation switch 64 automatically performs the backwashing operation, the suction stop, the compression operation, and the suction restart.

Thus, when the refuse G is stored in the vessel B in a much larger amount than the specified amount, such as during the year-end and New Year holidays, the refuse G in the vessel B is calculated in advance by the control device 61. The waste is stored in the waste storage tank 24 at a faster pace than the virtual waste amount Q. At this time, the operator can easily recognize from the experience of the worker that the amount of waste in the vessel B is larger than usual due to abnormal noise or vibration generated from the waste suction vehicle V, and a waste compression operation is required based on the recognition of the worker. When it is determined that there is, and the compression request operation switch 64 is turned on, the waste compression operation is automatically interrupted in a section where the waste compression operation is not set, and before the blockage by the waste G near the introduction port 40 of the waste storage tank 24 occurs. The refuse G sucked and transported into the refuse storage tank 24 is compressed by the compression plate 51. For this reason, Vessel B
It is possible to prevent the inside from being negatively pressurized, or to prevent the blocked dust G near the inlet 40 from wrapping around the front side (back side) of the compression plate 51 and dropping due to the compression operation after the dust is blocked, thereby greatly reducing maintenance. It can be simple.

Further, when it is desired to interrupt the dust compression operation according to the worker's judgment, the automatic suction by the control device 61 is not stopped and the program during the automatic suction, that is, the compression request operation switch 64 is set to the non-setting section of the dust compression operation. The waste compression operation can be interrupted only by the ON operation.
A troublesome operation such as temporarily stopping suction by switching to manual operation, performing a dust compression operation, and then restarting suction of the blower 33 again can be eliminated, and operability at the time of a dust compression operation interruption can be improved. it can.

Further, when the compression request operation switch 64 interrupts the dust compression operation in the first and second suction / compression cycles in the section where the dust compression operation is not set, the dust compression operation is performed based on the interrupted dust compression operation. The operation-unset section is newly updated, and at the time of completion of the updated waste-compression-unset section, the dust compression operation after the interruption is sequentially rearward-fed as set. Therefore, the interruption of the dust compression operation by the compression request operation switch 64 causes
In the first and second suction / compression cycles, the section in which the waste compression operation is not set does not become short, and the waste G is sufficiently sucked and transported by the newly updated waste compression operation non-set section, and the amount of stored waste is insufficient. The dust compression operation in the state can be prohibited.

It should be noted that the present invention is not limited to the above-described embodiment, but includes various other modifications. For example, in the above embodiment, the section in which the dust compression operation is not set is newly updated based on the dust compression operation by the compression request operation switch 64. However, as shown in FIG. Regardless of the interrupt, the waste compression operation is automatically performed when the waste compression operation non-set section is continued in the first and second suction / compression cycles based on the waste compression operation before the interruption as set in advance. It may be made to be done. In this case, the garbage compression operation is performed at the timing expected by the worker,
The garbage compressing operation by the subsequent compression request operation switch 64 can be performed with appropriate judgment without the operator feeling uncomfortable.

In the above-described embodiment, the virtual waste amount Q in the vessel B is calculated based on the size of the vessel B. However, the virtual waste amount in the vessel is determined based on the suction pattern at the time of sucking and transporting the waste from the vessel. Of course, the amount may be determined, or the virtual waste amount in the vessel may be determined based on the rate of change of the load of the blower after the introduction of the secondary air.

[0069]

As described above, according to the refuse suction transport device of the first aspect of the invention, the amount of refuse in the refuse storage container is controlled by an operator who has judged the amount of refuse that is larger than usual by abnormal noise or vibration from the refuse suction truck. By issuing a waste compression request to the device, the waste compression operation is automatically interrupted in the section where the waste compression operation is not set, preventing clogging due to dust near the inlet of the waste storage tank and making maintenance very simple. In other words, the refuse compression operation can be performed by a simple operation without stopping the control device.

According to the second aspect of the present invention, after the interruption of the refuse compression operation by the interruption means, the section for which the refuse compression operation is not set is newly updated based on the interrupted refuse compression operation, It is possible to prohibit the dust compression operation in a short waste compression operation non-set section in a state in which the amount of stored dust is insufficient.

According to the third aspect of the present invention, the section in which the waste compression operation is not set is continued based on the waste compression operation before the interruption regardless of the interruption of the waste compression operation by the interruption means. Therefore, the garbage compression operation can be performed at the operator's expected timing without giving a sense of incongruity to the operator, and thereafter, the interruption of the garbage compression operation can be performed with appropriate judgment.

[Brief description of the drawings]

FIG. 1 is a side view showing an entire configuration of a refuse suction and transport device according to an embodiment of the present invention.

FIG. 2 is a side view of the refuse suction truck.

FIG. 3 is a front view of the operation panel.

FIG. 4 is a time chart illustrating timing for performing a dust compression operation.

FIG. 5 is a flowchart showing overall control by the control device.

FIG. 6 is a flowchart showing control in a dust compression operation by the control device.

FIG. 7 is a block diagram illustrating a configuration of a suction device.

FIG. 8 is a cross-sectional view of the cover taken near each suction port.

FIG. 9 is a diagram corresponding to FIG. 4 according to a modification.

[Description of Signs] 1 Garbage suction and transport device 11 Discharge port 13 Garbage transport tube 22 Suction tube 23 Suction device 24 Garbage storage tank 51 Compressor plate 61 Control device 64 Compression request operation switch (interrupting means) B Vessel (garbage storage container) D Docking station G Garbage Q Virtual garbage in the vessel ΣQ Cumulative capacity (virtual garbage capacity) V Garbage suction truck X Garbage storage

Claims (3)

[Claims] 1. A refuse storage container provided in a refuse storage area for storing refuse, a docking station communicated with a discharge port of the refuse storage container via a refuse transport pipe, and stopped at the docking station, A garbage suction vehicle that sucks and transports the garbage stored in the storage container through the garbage transport pipe, wherein the garbage suction vehicle includes a garbage storage tank that houses a compression plate that performs a garbage compressing operation; A suction pipe connected to the storage tank, the other end of which is detachably connected to the docking station; a suction device for reducing the pressure of the refuse storage container and the refuse storage tank; When a predetermined negative pressure value is reached by the suction device, the refuse is stored in the refuse storage tank so that the refuse is transported to the refuse storage tank through the refuse transport pipe and the suction pipe. Each time the secondary air is introduced into the storage container and the amount of waste in the waste storage tank accommodated by the suction transportation reaches the virtual waste storage amount that requires the waste compression operation, the waste compression operation by the compression plate is performed in advance. A control device for controlling the compression of the refuse in the refuse storage tank based on the set program, and a worker in a section where the refuse compression operation by the control device is not set in the garbage suction operation when the refuse compression operation is not set in the garbage suction transport. Interrupt request means for instructing the controller to issue a waste compression request when a waste compression operation is requested, and automatically interrupting the waste compression operation in a waste compression operation non-set section. A garbage suction transport device. When the waste compression operation is interrupted by the interrupt means in the waste compression operation non-set section, the control device sets the waste compression operation non-set section based on the interrupted waste compression operation. 2. The garbage suction / transport apparatus according to claim 1, wherein the garbage suction / transport apparatus is newly updated, and when the updated garbage compression operation non-set section is completed, the garbage compression operation after the interruption is sequentially rearward-fed as set. 3. The control device according to claim 1, wherein, even if the waste compression operation is interrupted by the interrupt means in the waste compression operation non-set section, the control unit continues the waste compression operation unset section based on the waste compression operation before the interruption. 2. The garbage suction and transport device according to claim 1, wherein the garbage compression operation is performed as previously set at the completion of the continuous garbage compression operation non-setting section, regardless of the interrupted garbage compression operation.