JPS60209404A - Garbage wagon - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention The present invention compresses and crushes the garbage thrown into a garbage input box (hereinafter referred to as the input box), pushes it into the garbage storage box (hereinafter referred to as the storage box), and also compresses and crushes the garbage thrown into the garbage input box (hereinafter referred to as the input box). The present invention relates to a garbage collection vehicle that discharges the garbage inside the storage box to the outside of the storage box by driving a discharge plate inside the storage box with a cylinder.

The applicant of this application previously developed a link base above the garbage input port of the input box, which is connected to the rear opening of the storage box, as a mechanism for compressing and crushing the garbage thrown into the input box and pushing it into the storage box. The end of the link is pivotally supported, the tip of the link is pivotally supported above the paraka plate, the base end of the press plate is rotatably connected to the lower end of the paraka plate, and a rod is pivotally supported in the center of the press plate. The base end of the press cylinder is rotatably connected to a point displaced from the connecting shaft of the link with the Paraca plate, and the rod of the Banka cylinder, whose base end is pivotally supported below the input box, is connected to the Pakka plate and the link. We are proposing a system that is connected to the connecting shaft.

By the way, this garbage loading device compresses and crushes the garbage with a press plate as the press cylinder operates, and also attaches the base end of the press cylinder to a link to increase the rotation angle of the press plate when pushing it into the storage box. Therefore, the amount of garbage that can be accommodated can be greatly increased, and it is highly effective.

On the other hand, as a mechanism for discharging the garbage in the storage box that has been pushed into the storage box, there is a mechanism disclosed in, for example, Japanese Patent Publication No. 52-43291.

That is, in the mechanism disclosed in this publication, the rod of the cylinder that drives the discharge plate is not compressed to the minimum, and when the force applied to the discharge plate exceeds a predetermined value, the pressure valve releases oil to the outside of the cylinder and the rod is moved. By reducing the size of the storage box and thereby making it possible to move the discharge plate, it is possible to fill the storage box with garbage under a substantially uniform pressure, thereby increasing the amount of garbage that can be accommodated.

However, the mechanism disclosed in this publication is simply configured to release oil using a pressure valve, so even if a large force is applied to the discharge plate due to sudden braking when a garbage collection vehicle is running, for example, the discharge plate may not be activated. will move. In this situation, the compressive force applied to the garbage when it is pushed into the storage box becomes weaker, resulting in uneven packing of the garbage inside the storage box, and there is a limit to the expansion of storage capacity. There were drawbacks.

The present invention has been made in order to eliminate the above-mentioned drawbacks of the conventional methods, and its purpose is to further expand the amount of garbage that can be accommodated by making it possible to store garbage with a more uniform packing pressure. The aim is to provide garbage collection vehicles.

Embodiments of the apparatus according to the present invention will be described below based on the drawings, in which the same members are designated by the same reference numerals.

FIG. 1 shows a garbage collection vehicle according to the present invention, in which garbage collection vehicle A
A storage box 1 is mounted on a vehicle chassis a.

A charging box 2 is connected to the rear opening of the storage box 1,
Inside the input box 2, a mechanical part of the garbage loading device as shown in FIGS. 2 to 5 is housed.

In the figure, the input box 2 is tiltably connected to the rear of the storage box 1 by a pin 3, and is held in the illustrated state by an automatic locking device 54 so that it is energized and communicated with the rear opening 1a of the storage box 1. has been done.

Further, the input box 2 has a bottom portion 2b with a garbage input port 2a provided at the rear and continuous arcuate surfaces 2b+ and 2b2.
A mechanical part of a garbage loading device that is pushed into the storage box 2 is housed.

Further, in FIG. 2, reference numeral 5 denotes a press plate having a width that touches the inner surfaces of both side walls of the input box 2, and the lower end of a puncher plate 6 having a flat plate shape and having the same interior as the press plate 5 is attached to the upper end of the plate 5. They are rotatably connected to each other by a shaft 7.

The upper and lower ends of the puncher plate 6 are connected to a pair of first links 8 and 2 links whose base ends are pivotally supported on the inner surfaces of both side walls of the input box 2 above the input opening 2a and spaced apart from each other vertically. 2. The tip of the link 9 is rotatably connected by a shaft 10° 11, and the shaft 10 has a baraka cylinder whose base end is swingably supported by a shaft 12 provided below the input box 2. The tips of thirteen rods 13a are rotatably connected.

Further, the base end of a press cylinder 15 is swingably connected to a shaft 14 provided in the first link 8 through a displacement l with a connecting shaft 10 with the punker plate 6, and the tip of a rod 15a of the cylinder 15 is is rotatably connected to a shaft 16 provided at the center of the press plate 5.

17 is a guide rail for a roller (not shown) provided on the connecting shaft 7 between the press plate 5 and the puncher plate 6, and 18 is a shield plate that shields the upper part of the opening 1a of the storage box 1.

Thus, a first plate connecting the upper and lower parts of the puncher plate 6,
The base end shaft fulcrum of each of the second links 8 and 9 is set so that the front surface of the punker plate 6 can move while maintaining a constant gap from the lower end of the shielding plate 18.

Next, the operation process of the mechanical part of the garbage loading device will be explained with reference to FIGS. 2 to 5.

In the first step of charging garbage into the charging box 2 from the charging port 2a, the rod 15a of the press cylinder 15 and the rod 13a of the bunker cylinder 13 are both fully extended as shown in FIG. Press cylinder 15 as shown
The rod 15a of the bunker cylinder 13 is in the most contracted state, and the rod 13a of the bunker cylinder 13 is in the most extended state. At the end of this stroke, the press plate 5 is held in a substantially horizontal state, and the punker plate 6 is in the highest position. held in position.

Next, in the second step for compressing and crushing the input garbage, as shown in FIGS. 3 and 4, the bunker cylinder 1
3 to retract the rod 13a, the puncher plate 6 descends along the guide rail 17 due to the counterclockwise rotation of the first and second links 8 and 9, and the press plate 5 also approximately It descends in a horizontal state and compresses and crushes the garbage by enveloping it between it and the bottom 2b of the input box 2.At this time, when the rod 13a of the bunker cylinder 13 is in a semi-reduced state, the press cylinder 15 is activated. The rod 15a is slightly elongated.

Next, in the third step for further compressing and crushing the garbage in the input box 2, as shown in FIGS. It rotates clockwise around the connecting shaft 7 with the plate 6.

Therefore, the tip edge of the press plate 5 rotates while slidingly contacting the bottom arcuate surface 2b+ of the input box 2, compressing and crushing the garbage between (the press plate 5 and) the arcuate surface 2b2.

In the subsequent fourth stroke, the rod 15a of the press cylinder 15
After reaching the maximum extension state, the bunker cylinder 13 is actuated to extend the rod 13a, and the bunker plate 6 is moved to the first,
The clockwise rotation of each of the second links 8 and 9 causes them to rise along the guide reel 17.

Therefore, the tip edge of the press plate 5 rises while slidingly contacting the bottom arcuate surface 2b2 of the input box 2, and scrapes up the compressed and crushed garbage toward the opening 1a. At the end of the fourth stroke, the rod 13a of the bunker cylinder 13 is at its maximum extension as shown in FIG.
This pushes the garbage into the storage box 1 and closes the opening 1a.

Then, the collection vehicle travels in this state, and at the next collection location, the press cylinder 15 is operated to make the rod 15a in the most contracted state, the press plate 5 is raised to a substantially horizontal state, and the garbage is collected again through each of the above steps. It is used to load.

Returning to FIG. 1 again, when discharging garbage from the storage box 1 that is filled with garbage loaded by the mechanical part of the garbage loading device stored in the input box 2, first the input box is 2 is tilted upward about the shaft 3. For this purpose, a rod 51a of a lift cylinder 51 whose base end is rotatably supported on the storage box 1 is rotatably connected to the input box 2. Further, in order to discharge the garbage in the storage box 1 while the input box 2 is raised, a discharge plate 53 driven by a discharge cylinder 52 is housed in the storage box 1.

Note that before the input box 2 is raised as described above, an automatic locking device 54 driven by a cylinder 73 (described later) is activated.
Since the loading box 2 and the storage box 1 are held completely tightened in the illustrated state, it is necessary to release the tightening by the automatic locking device 54 in order to move up.

On the other hand, inside the driver's cabin is a power take-off (Pro) W.
An I exchange handle 55 and a switch panel 56 are provided. The switch panel 56 includes a power switch, an input box operation switch, a discharge plate operation switch, an individual operation switch, and the like. Then, on the left side of the loading box 2, there is a loading operation panel 57 that has a "Load" push button, a "Stop" push button, and a "Buzzer" push button, and on the right side (not visible in FIG. 1), Each is equipped with an operation panel consisting of an "Emergency Stop" pushbutton.

FIG. 6 shows the hydraulic circuit of the garbage collection vehicle according to the present invention, and in the figure, 61 is the engine of the garbage collection vehicle A (FIG. 1);
62 is a PT connected and disconnected by the PTO switching handle 55
O device, 63 is gear pump, 64 is oil tank, 65
is a suction filter, 66a and 66b are in-line check valves, 67a and 67b are pilot operator check valves, and 68a and 68b are tightened check pulps. v-1 to V-7 are solenoid valves, 7
1a and 71b are relief valves, 72 is a return filter, and 73 is a tightening cylinder that operates the automatic locking device 54. The hydraulic pressure generated by the operation of the gear pump 63 is applied to the cylinders 13 and 15 by switching the solenoids of the solenoid valves V-1 to V-7.
, 51, 52, and 73 to operate these cylinders.

In addition, solenoid valve V-1 is solenoid 5OL-4.
and 5QL-5, and solenoids 5OL-4 and 5Q
By energizing L-5, hydraulic pressure is supplied to the bunker cylinder 13 to extend and contract the rod 13a, respectively. Solenoid valve V-2 is solenoid 5QL-2 and 5QL
-3, and by energizing the solenoids 5QL-2 and 5ol-3, hydraulic pressure is supplied to the press cylinder 15 to contract and expand the rod 15a, respectively. Solenoid valve V-3 is solenoid 5QL-9 and S.

By energizing the discharge plate discharge solenoid 5QL-9 and the discharge plate return solenoid 5QL-10, hydraulic pressure is supplied to the discharge cylinder 52 to extend and contract the rod, respectively. Solenoid valve V-4 has 7L/noids 5OL-7 and 5QL-8, solenoid 5QL-
By energizing 7 and 5QL-8, hydraulic pressure is supplied to the lift cylinder 51 to extend and contract its rods, respectively.

Solenoid valve v-5 is lock tightening amount solenoid 5Q
L-11, and before energizing the solenoid SQL"l 1, the rod of the lock cylinder 73 is contracted and the automatic locking device 54 that maintains the tightening state is tightened by the solenoid 5.
By energizing QL-11, the rod of the lock cylinder 54a is extended and released.

The solenoid valve v-6 has a solenoid 5QL-6, and when the solenoid 5QL-6 is energized, a part of the hydraulic pressure that is being supplied to the bunker cylinder 13 is supplied to the press cylinder 15 to extend its mouth/throat 15a. . Solenoid V
-7 has solenoids 5QL-12 and 5QL-13, and when the solenoid 5QL-12 is energized, the hydraulic pressure supplied through the solenoid valve V-3 is transferred to the discharge cylinder 52.
and extend that rod. On the other hand, solenoid 5
It is switched by energization of QL-13, and acts to release the hydraulic pressure inside the cylinder 52, which increases due to the force applied from the outside to the rod of the discharge cylinder 52 to reduce the mouth/throat, through the relief valve 71b.

FIG. 7 shows an electric circuit of the garbage collection vehicle according to the present invention, and in the figure, LS-1 to LS-13 are microswitches provided at various locations in the garbage collection vehicle A. Micro switch LS-
1. LS-2As shown in FIGS. 8 and 9, ASLS-2B is attached to the baraka plate 6, and is configured to be switched by an operating lever 82 linked to the press plate 5 by a link 81. The switch LS-1 is used to detect the contraction of the rod tSa of the press cylinder 15 when loading garbage and when raising the input box, and the micro switch LS-2ASLS-2B is used to detect the expansion of the press cylinder 15 when loading garbage. used for detection.

The microswitches LS-3 to LS-5 are mounted on the left side of the input box 2, and are configured to be switched by an operating cam 83 that rotates in conjunction with the second link 9 supporting the baraka plate 6. The micro switch LS-5 detects the contraction of the rod 13a of the bunker cylinder 13 when loading garbage, so the micro switch LS-4 detects the contraction of the rod 13a of the bunker cylinder 13 when loading garbage and when the input box is raised.
and microswitch LS-3 to detect the elongation of
are used to detect the beginning of extension of the rod 13a of the bunker cylinder 13 during garbage loading.

The microswitch LS-7 is provided in the storage box 1, and one contact is turned on and the other is turned off at a predetermined return position of the discharge plate 53 when the input box 2 is lowered and raised. Micro switch LS-10, LS-10B, LS-11
is attached to the hinge part of storage box 1 and input box 2, and LS-1
0, LS-10B is turned on when the input box 2 is at a rising angle of 45° when the discharge plate 53 is activated, and the LS-10B is turned on to confirm the angle.
11 is an automatic locking device 54 which is turned off when the input box 2 is lowered.
are used to check the tightness of each.

Micro switch LS-13 is PTO switching handle 55
This is for turning on the power to the PTO device 62 for entertainment purposes.

PB-1 to PB-4 are push button switches, and these are "
They are operated by push buttons for "emergency stop", "stop", "loading" and "buzzer", respectively.

5W-1 to 5W-4 are three-position toggle switches, which respectively correspond to the power switch, input box operation, discharge plate operation, and single operation switches on the switch panel 56 in the driver's cab. Note that the other switches except for switch 5W-1 are switched only when manual operation force is applied, and return to the neutral position when the hand is released.

CR-1 to CR-13 are control relays, and the normally open and normally closed contacts of these relays are designated by the same code. T-1 to T-6 are timers, which turn on the contacts indicated by the same symbols when a preset time has elapsed for each timer after activation by energization, and maintain that state until the energization is removed.

5QL-1 to 5QL-13 are solenoids, solenoid 5QL-1 is for disturb the governor device that keeps the engine rotation at an appropriate constant value, solenoid 5QL
-2, 5QL-3 are for solenoid valve V-2, solenoid 5QL-4, 5QL-5 are for solenoid valve V-1
Solenoid 5OL-6 is for solenoid valve V-6, solenoid 5QL-7, 5QL-8 is for solenoid valve ■-4, solenoid 5QL-9, 5QL-10 is for solenoid valve v-3, solenoid 5QL-11 is for solenoid valve v-5, solenoid 5QL-12,5
QL-13 is for solenoid valve V-7.

Then, by energizing 5QL-2 and 5OL-3, the rod 15a of the press cylinder 15 contracts and expands, and 5QL-2 and 5OL-3 are energized.
By energizing 4 and 5QL-5, the rod 13a of the Paraca cylinder 13 contracts and extends, and by energizing 5QL-7 and 5QL-8, the charging box 2 moves up and down, and 5QL-9 and 5
When the QL-10 is energized, the ejection plate 53 is ejected and returned.
The automatic locking device 54 is tightened and opened by energizing sot, -it, and S.

The discharge operation of the discharge plate 53 is enabled by energizing L-12, and the automatic return of the discharge plate 53 is enabled by energization of 5QL-13.

Note that D-1 to D23 are diodes that regulate the direction of current flow, F is a fuse, BZ is a buzzer, and PL is a pilot lamp.

The operation of the garbage collection vehicle according to the present invention having the hydraulic circuit and electric circuit as described above will be explained below with reference to the time charts shown in FIGS. 10 and 11.

Now, the baraka plate 6 and the press plate 5 are in the position shown in FIG.
3a and the rod 15a of the press cylinder 15 are both in the fully extended state. At this time, micro switch LS
-1 to LS-13 are in the state shown in Fig. 1θ.

In such a state, to carry out the loading operation, after turning the PTO switching lever 55 to "on", turn the toggle switch 5W-t, which is the power switch, to the "loading" side, and then press the loading pushbutton PB. When -3 is pressed, the PTO switching lever 55 first changes the microswitch LS-13 from open to close, and relays CR-2 and CR-12 are energized. Further, by switching this switch SW-1 and operating the push button PB-3, the relay CR-3 is also energized. Then, by energizing relay CR-3, relay CR-5
is energized.

By energizing this relay CR-5, the governor solenoid 5
When QL-1 is energized, press contraction solenoid 5QL
-2 is energized and the rod 15a of the press cylinder 15 contracts. Note that at this time, timer T-1 is also energized and activated. The contact of timer T-1 turns on approximately 1 second after its activation.

When the rod 15a of the press cylinder 15 is retracted as described above, the microswitch LS-2A, which had been on until then, is turned off, and the microswitch LS-2B, which had been off, is turned on.

Then, due to the contraction of the press cylinder 150 rod 15a, a reversal operation of the first stroke in which the press plate 5 is moved is performed, and the state as shown in FIG. 3 is finally reached.
In response to this, the microswitch LS-1 changes from open to closed.

By closing this microswitch LS-1, relay CR-1 is energized through this switch. The energization of relay CR-1 energizes relay CR-6, and the energization of relay CR-6 energizes relay CR-7 and de-energizes relay CR-5. In addition, by energizing the relay CR-1, the press contraction solenoid 5QL-2
is no longer energized, and the relay CR-7 is energized to energize the compressor contraction solenoid 5QL-4, causing the rod 13a of the bunker cylinder 13 to retract.

This retracting action of the rod 13a turns off the microswitch LS-4, which had been on, and correspondingly de-energizes the relay CR-2. This relay CR
-2 is no longer energized, relays CR and -6 are also no longer energized, and in response, timer T-2 is energized and activated. The contact of the timer T-2 turns on approximately 4 seconds after activation, which is longer than the contraction time of the rod 13a of the bunker cylinder 13.

When the opening/end 13a of the banker cylinder 13 has been compressed to about half, the microswitch LS, which had been off until then, will turn off.
-5 is turned on, and in response, relay CR-9 is energized and timer T-3 is energized and activated. This relay C
The press extension solenoid 5QL-3 is energized by the energization of R-9, and the extension operation of the rod 15a of the press cylinder 15 is started.

The contact of the timer T-3 turns on about 3 seconds after activation, which is longer than the extension time of the rod 15a of the press cylinder 15.

In this way, the rod of the bunker cylinder 13 first starts to contract, then the rod 15a of the press cylinder 15 starts to extend, and then the primary compression operation of the second stroke in which both operations proceed simultaneously is performed. is in the state shown in FIG. 4, but the rod 15a of the press cylinder 15
The microswitch LS-1 is turned off in response to the start of the stretching operation. When the state shown in FIG. 4 is reached, the microswitch LS-3 is turned on from off.

By turning on this microswitch LS-3, relay C
R-13 is energized, and in response, relay CR-7 and timer T-2 are de-energized. Then, as the relay CR-7 is de-energized, /< Tsuka contraction solenoid 5QL-
4 is no longer energized and the rod 13 of the banker cylinder 1≦
The contraction operation of a is completed. At this time, relay CR-9 is still
is energized, so the press extension solenoid Sol, -3
A secondary compression operation is performed in the third stroke in which the rod 15a of the press cylinder 15 continues to be energized and the rod 15a of the press cylinder 15 continues to extend, and finally the state shown in FIG. 5 is reached.

When the rod 15a of the press cylinder 15 finishes shrinking, the microswitch LS-2A is turned on and the microswitch LS-2B is turned off. When this microswitch LS-2A is turned on, relay CR-10 and timer T-4 are energized, and when microswitch LS''2B is turned off, relay CR-12 is de-energized. Solenoid 5QL-3 is no longer energized, and instead, banker extension solenoid 5OL-5 and automatic return solenoid 5Q
L-13 is energized and the rod 13. of the bunker cylinder 13 is energized.
The stretching motion of a begins.

Due to this elongation of the rod 13a of the bunker cylinder 13,
A garbage pushing operation is performed to push the garbage in the input box 2 into the storage box 1, but at this time, force is applied to the rod of the discharge cylinder 52 that drives the discharge plate 53 in the storage box 1, causing the rod to shrink. shall be. Therefore, the oil pressure in the discharge cylinder 52 increases, but when the oil pressure at this time exceeds the set pressure of the relief valve 71b, the oil in the cylinder 52 flows out via the solenoid pulp V-7 and the relief valve 71b, and this occurs. As a result, the discharge plate 53 is returned. This returning operation of the discharge plate 53 is stopped when the oil pressure in the cylinder 52 becomes equal to or lower than the set pressure of the relief valve 71b.

The contact of the timer T-4 turns on approximately 5 seconds after activation by energization, which is longer than the extension time of the rod 13a of the bunker cylinder 13.

In response to the extension of the rod 13a of the bunker cylinder 13, the microswitch LS-3 is turned off, thereby de-energizing the relay CR-13.

After that, the rod 13a of the bunker cylinder 13 extends.
The row-pushing operation is performed, and finally the state shown in FIG. 2 is reached.

When the rod 13a of the bunker cylinder 13 is fully extended as shown in FIG. 2, the microswitch LS-4 is turned on, and in response, the relay CR-2 is energized. This energization of relay CR-2 energizes relay CR-5, and in response, energizes timer T-1. Also relay CR-5
Due to the energization, the bunker extension solenoid 5QL-5 is de-energized and the extension operation of the rod 13a of the bunker cylinder 13 is completed, and instead, the press contraction solenoid 5QL-2 is energized and the retraction operation of the rod 15a of the press cylinder 15 is completed. Start.

In response to the start of contraction of the rod 15 of the press cylinder 15, the microswitch LS-2A is turned off and the microswitch LS-2B is turned on, and thereafter the first stroke in which the rod 15a of the press cylinder 15 is contracted is performed, and the same process as in the above case is carried out. The next second step,
3rd step...The operation is repeated.

If the "stop" push button is operated to turn off the push button switch PB-2 near the end of the fourth stroke, all relays, timers, and solenoids are de-energized at this point, and the operation of the device is stopped.

Assuming that microswitch LS-2A is on and everything else is off, the state of the microswitch at the time of this operation stop is the same as when the "Load" push button is operated again and push button switch PB-1 is activated. The operation will be explained below.

The operation of switch PB-1 first energizes relay CR=3, and in response, relay CR-5 and timer T-1 are energized. By energizing relay CR-5, governor solenoid 5QL-1 and press contraction solenoid 5QL-2 are energized, and the rod 15a of press cylinder 15 starts to compress. When the f&o elapses for 1 second, the timer T-
Contact No. 1 is turned on, relay CR-4 is energized, and in response, bunker extension solenoid 5QL-5 is energized to extend the rod 13a of bunker cylinder 13, which has not been fully extended.

When the rod 15a of the press cylinder 15 is completely retracted while the rod 13a of the bunker cylinder 13 is being extended, the microswitch LS-1 is turned on in response to this, and the turning on of the microswitch LS-1 causes the relay CR-1 to
is energized. Due to the energization of the relay CR-1, the press contraction solenoid 5QL-2 is de-energized and the contraction operation of the rod 15a of the press cylinder 15 is completed.

When the rod taa of the bunker cylinder 13 is fully extended, the microswitch LS-4 is turned on, and in response, the relay CR-2 is energized. By energizing relay CR-2, relay CR-4 is de-energized, but relay C
R-6 is energized.

When relay CR-6 is energized, relay CR-7 is energized, but relay CR-5 is de-energized and timer T is energized.
-1 is no longer energized.

Further, the energization of the relay CR-7 energizes the bunker contraction solenoid 5QL-4, and in response, the second stroke of extending the rod 13a of the bunker cylinder 13 starts, and thereafter the third, fourth, first, etc. ...and repeat the process.

Now, if the operation of the plate stops due to dust during the above-mentioned second process, its contact will turn on approximately 4 seconds after the start of timer T-2, and it will connect to relays CR-8 and CR-10. 7T-4 is energized. Relay CR-8
When energized, the valve contraction solenoid 5QL-4 and relay C are activated.
Plate extension solenoid 5QL-3 is activated by energizing R-10.
is no longer energized, while relay CR-10 is energized, banker extension solenoid 5QL-5 is energized, and timer T-5 is also energized and activated.

When about 1 second elapses after the timer T-5 is activated, its contact is turned on, relay CR-11 is energized, and in response, solenoid 5QL-6 is energized. This solenoid 5QL-6
As a result, the solenoid valve V-6 is operated, a part of the hydraulic pressure to the Baraka cylinder 13 is supplied to the press cylinder 15, and the rod 15a of the press cylinder 15 is also extended at the same time. This is an operation to bring the state of the plate to the state after execution of the fourth step.

By the way, if the plate stops due to dust while the rod 13a of the Paraca cylinder 13 is being extended, its contact is turned on approximately 5 seconds after the timer T-4 starts, and the relay CR-5 is energized. In response, timer T-1 and plate contraction solenoid 5QL-2 are energized, and Pasoca expansion solenoid 5QL-5 and timer T-5 are energized.
is no longer energized, and the contact of timer T-5 is turned off.

By turning off the contact of timer T-5, solenoid 5OL-
6 will no longer be energized.

When the contact is turned on approximately 0.5 seconds after the timer T-1 is activated, relay CR-4 is energized, and in response, Pasoca extension solenoid 5QL-3 is energized. That is, 0.5 seconds after the retraction operation of the rod 15a of the press cylinder 15, the extension operation of the rod 15a of the Paraca cylinder 15, which has not been fully extended, is performed. and press cylinder 1
The rod 15a of No. 5 is completely shrunk, and the micro switch LS-
1 is turned on, relay CR-1 is energized, and in response, press contraction solenoid 5QL-2 is de-energized.

After that, when the rod 13a of the Baraka cylinder 13 is fully extended, the first stroke is completed and the micro switch LS-4
is turned on, and relay CR-2 is energized accordingly.

When relay CR-2 is turned on, relay CR-4 and buff force extension solenoid 5QL-5 are energized instead of relay CR-6 being energized.
The power is turned off. When relay CR-6 is energized, relays CR-8, CR-9 and CR-10 are de-energized. In response to the de-energization of the relay CR-8, the bunker contraction solenoid 5QL-4 is energized and the contraction operation of the rod 13a of the bunker solenoid 13 in the second stroke is started.

If the press plate stops moving due to dust during the third step after the end of the second step, the contact is turned on approximately 3 seconds after the start of timer T-3, and the relay is activated. When dR-10 is energized, timer T-4 is activated. Then, when relay CR-10 is energized, Pasoca expansion solenoid 5QL-5 and timer T-5 are energized, and when Banka solenoid 5QL-5 is energized, Pasoca extension solenoid 5QL-5 and timer T-5 are energized.
The rod 13a of the lever cylinder 13 starts to extend. After about one second, the timer T-5's contact is turned on to energize the relay 11, and in response, the solenoid 5QL-6 is energized.

By energizing the solenoid 5QL-6, hydraulic pressure is supplied to the press cylinder 15, causing the rod 15a to extend, and at the end of the fourth stroke when the extension action ends, the microswitches LS-2A and LS-2B are turned on, respectively. and turns off, and accordingly, relay CR-5 and timer T-5 are de-energized. When timer T-5 is de-energized, its contact turns off, and accordingly relay CR-
11 and solenoid 5QL-6 are no longer energized.

When the solenoid 5QL-6 is de-energized, the supply of hydraulic pressure to the press cylinder 15 is stopped.

After that, the extension of the rod 13a of the puffer cylinder 13 progresses, and when the rod 13a is fully extended, the micro switch LS
-4 is turned on, and relay CR-2 is energized accordingly. By energizing this relay CR-2, relay CR-
5 and press compression solenoid 5QL-2 are energized, and timer T
-1 starts and the rod 15 of the press cylinder 15
The stretching motion of a begins. That is, the first process starts.

Thereafter, box 2, 3rd, 4th steps, etc. are repeated in order.

Next, the operation when discharging the garbage stored in the storage box 1 will be explained.

First, the PTO switching lever 55 is brought into contact to perform the ejection operation, and then the switch 5W-1 is turned to the "ejection" side. At this time, assuming that the rod 15a of the press cylinder 15 is not in the most contracted state, that is, not fully contracted, and the rod 13a of the bunker cylinder 13 is not in the most extended state, that is, not fully extended, the microswitch LS-1,
LS-28SLS-3 and LS-4 are both off and 10 relays CR-1, CR-2, CR-11 and CR
-13 are both not energized.

When the switch 5W-2 is turned to the "up" side in this state, the timer T-6, the discharge solenoid 5OL-9, and the tightening amount solenoid 5QL-11 are energized. This solenoid 5
When the QL-11 is energized, the rod of the input box 2 comes off, allowing it to rise. Also, timer T-6 is about 1 minute from its start.
The contact turns on after a second. When the contact of timer T-6 is turned on, relay CR-11 is energized, and in response, lift solenoid 5QL-7 is energized and lift cylinder 51 is energized.
The input box 2 is raised by supplying hydraulic pressure to the opening and extending the rad.

The above-mentioned discharge solenoid 5QL-9 is energized in order to supply large hydraulic pressure to the cylinder 73 of the automatic locking device 54 by blocking the oil passage in the solenoid valve V-7, thereby enabling reliable release of the lock. However, this disappears after a timer period of about 1 second by the above-mentioned timer T-6.

As the input box 2 starts to rise, the micro switch LS
-11 turns on. Also, when the input box 2 rises to a predetermined position of 45 degrees, the microswitches LS-10 and LS-10 are activated.
B turns on. When the operation of the switch 5W-2 is stopped when the input box 2 has risen to the predetermined position, the switch 5W-
2 returns to the neutral position.

In the above state, when the switch 5W-4 is turned to the press extension and bunker extension sides, the press extension solenoid 5OL-3 and the pasoca extension solenoid 5QL-5 are energized, and the press cylinder 15
The rod 15a of the press cylinder 15 and the rod 13a of the bunker cylinder 13 are extended at the same time, and when the rod 15a of the press cylinder 15 is fully extended, the microswitch LS-2B is turned on, relay CR-12 is energized, and the rod 13a of the bunker cylinder 13 is extended. When it is fully extended, microswitch LS-4 is turned on and relay CR-2 is energized.

By energizing relays CR-12 and CR-2, press extension solenoid 5QL-3 and backer extension solenoid 5QL-5 are activated.
is no longer energized, and the extension operation of each cylinder is completed.

This state is the state where the fourth stroke, that is, the pushing operation has been completed, and at this time, both microswitches LS-1 and LS-3 are off.

In this state, when the switch 5W-4 is turned to the press compression and bunker compression sides, the press compression solenoid 5QL-2 and the back compression solenoid 5QL-4 are energized, causing both the press cylinder 15 and the bunker cylinder 13 to contract. Actions occur simultaneously. And the rod 15a of the press cylinder 15
When the rod 13 of the bunker cylinder 13 is completely compressed, the micro switch LS-1 is turned on, relay CR-1 is energized, and the rod 13 of the bunker cylinder 13 is
When a is completely compressed, microswitch LS-3 is turned on and relay CR-13 is energized. Both relays CR-1 and C
By energizing R-13, press contraction solenoid 5QL-2
, the bunker contraction solenoid 5QL-4 is no longer energized, and the contraction operation of each cylinder is completed. This state is the state in which the second stroke has been completed.

In addition, the above-mentioned press cylinder 15 and bunker cylinder 1
When the rods No. 3 are simultaneously extended and contracted, the oil pressure to the bunker cylinder 13 is supplied by the discharged oil of the press cylinder 15, as is clear from the hydraulic circuit in FIG. In this state, if the amount of oil required to extend and retract the rod 15a of the press cylinder 15 is smaller than the amount of oil required to extend and retract the rod 13a of the bunker cylinder 13, the press plate when both cylinders 15 and 13 are contracted. 5 is away from the circular arc surface 2b2 of the bottom 2 of the input box 2 as shown by
The locus during extension of 3 is the circular arc surface 2b2 as shown by Y in the same figure.
The garbage remaining in the input box 2 can be effectively dropped when the input box 2 is raised.

As mentioned above, the switch 5VI is activated before, after, or at the same time as the garbage falls in the input box 2 by manual operation of the switch 5W-4.
-3 to the discharge side, the discharge solenoid 5QL-9 and the discharge plate operating solenoid 5QL-12 are energized via the micro switch LS-10 which is turned on, and this causes the solenoid valves V-3 and V-3 to be energized. Hydraulic pressure is supplied to the ejection cylinder 52 via 7, the rift is extended, and the ejection plate 53 is retracted. By retreating the discharge plate 53, the garbage inside the storage box 1 is discharged to the outside through the opening 1a.

Incidentally, when the discharge plate 53 moves from the predetermined position toward the opening of the storage box 1, the microswitch LS-7 becomes in the state shown in the figure.

By the way, during the above-mentioned dust discharge operation, the movement of the discharge plate 53 may be stopped due to the dust being caught on the way. In such a case, move the switch 5t-3 to the return side and remove the discharge plate 5.
3 and then perform the ejection operation again, the ejection plate 53
You will be able to move quickly and overcome getting caught in the garbage.

After confirming that the dust discharge is completely finished, turn switch 5W-2 to the lowering side, and the micro switch LS
-7, the return solenoid 5OL-10 and the discharge plate operating solenoid 5QL-12 are simultaneously energized, and the discharge plate 53
A return operation is performed. When the discharge plate 53 returns to the predetermined position, the microswitch LS-7 is switched to the opposite side as shown in the figure, thereby stopping the return operation of the discharge plate 53, and the lowering solenoid 5QL-8 is energized to remove the input box. 2
A descending motion is performed. At this time, the tightening amount solenoid 5
Since QL-11 is energized via microswitch LS-11, automatic locking device 54 is open.
The dropping box 2 can be moved down beyond the automatic locking device 54.

When the loading box 2 has been sufficiently lowered, the microswitch LS-11 is turned off and the tightening amount solenoid 5QL-11 is de-energized, which causes the automatic locking device 54 to tighten the loading box 2. is locked.

As explained above, according to the present invention, since the relief valve is provided in the outlet passage of the discharge cylinder via the switching valve that opens when the rifted of the Paraca cylinder is extended, the rifted extension of the Paraca cylinder is performed. This eliminates the possibility of the discharge plate moving when the garbage collection vehicle is running, allowing garbage to be loaded evenly into the collection box with high pressure, significantly increasing the amount of garbage that can be stored. be able to.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and FIG. 1 is a side view showing a garbage collection vehicle according to the invention, and FIGS. 2 to 5 are cross-sectional views showing different operating states of the mechanical parts of the garbage collection vehicle according to the invention. ,
FIG. 6 is a hydraulic circuit diagram showing the hydraulic circuit of the garbage collection vehicle according to the present invention, FIG. 7 is an electric circuit diagram showing the electric circuit of the garbage collection vehicle according to the present invention, and FIGS. 8 and 9 are in FIG. 10. 10 and 11 are time charts for explaining the operation of the device according to the present invention, and FIG. 12 is a diagram showing the operation of the garbage collection vehicle according to the present invention. 1...Garbage storage box, 2...Garbage input box, 5...Press plate, 6...Baraka plate, 13...Paraka cylinder, 13a
.....lifted, 15 ....press cylinder, 15a ....lifted, 52 ....discharge cylinder, 53 ....discharge plate, 71b ...・・・・・・
Relief valve, V-7...Solenoid valve, 5
QL-13... Automatic return solenoid. Patent applicant: Morita Tokushu Kikou Co., Ltd. Procedural amendment (voluntary) March 11, 1985 Manabu Shiga, Commissioner of the Patent Office1, Indication of case: Patent Application No. 062468, 1982
, Title of the invention Dust collection vehicle 3, Person making the amendment: 1-48 Jinmu-cho, Yao-shi, Osaka Prefecture Patent applicant address 1-48 Jimmu-cho, Yao-shi, Osaka Name Morita Tokushu Kikou Co., Ltd. 4 Name of agent (6069) Patent attorney Inadashi Satoko Hideti,%5,
Date of amendment order: Month, Day 6, 1949, Number of inventions increased by amendment 7, Secret of amendment 8, Contents of amendment Contents of amendment as attached (Japanese Patent Application No. 59-062468) 1, Specification page 5 Correct "12" in the 12th line to "1". 2. Correct r54aJ on page 12, line 19 of the same book to "73". 3. “Pasoka
...Correct "shrinkage" to "position at which press cylinder 15 begins to extend." 4. In the same book, page 14, line 17, ``begins to grow'' is corrected to ``shrink.'' 5. Insert "more than" after "5°" on page 15, line 6 of the same book. 6. Insert 1 and ``operable'' after ``confirmation'' on page 15, line 6 of the same book. 7. In the same book, page 15, line 8, "confirm" is corrected to "automatically". 8. rLs-13J on page 18, line 3 of the same book as rLS-
Corrected to 5. 9. In the same book, page 19, lines 5 and 6, "is off...
......on" is corrected to "LS-2B is off." 10. Correct "shrinkage" to "elongation" in the first line of page 22 of the same book. 11. Correct "off" to "on" in the third line of page 22 of the same book. 12. On page 22 of the same book, lines 4 to 6, “On...
. . ." is corrected to "Relays CR-10, CR-12 and timer T-4 are energized when LS-2B is turned on." 13. In the same book, page 23, line 9, "off shi, ko" is corrected to "off shi, ko." 14. Correct "rod 15" in line 5 of page 24 of the same book to "rod 15a." 15. In the same book, page 24, lines 6 and 7, “is off...
......on" is corrected to "LS-2B is off." 16, in the same book, page 24, line 13, replace “all” with “relay C
Corrected to ``excluding R-12''. 17, after rLs-2AJ on page 24, line 16 of the same book [
, insert LS-2BJ. 18, r 0 on page 25, line 6 of the same book. IJ is about 1
” is corrected. 19. In the same book, page 26, line 9, ``expand'' is corrected to ``shrink.'' 20. In the same book, page 26, line 18, "plate" is corrected to "press". 21. In the same book, page 27, line 15, "plate" is corrected to "press". 22, - Correct ro and IJ in the first line of page 28 of the same book to "1". 23, "3" in the third line of page 28 of the same book is corrected to "5". 24, r O, 5J on page 28, line 5 of the same book is corrected to "approximately 1". 25, "r15 (2)" in the 6th line of page 28 of the same book was changed to "13
” is corrected. 26. In the second line of page 29 of the same book, "solenoid" is corrected to "cylinder." 27, Ibid., page 29, line 14 (7) rllJ to rCR-
11". 28, "and off" in page 29, line 20 of the same book is deleted. 29, page 30, line 1 of the same book, after rCR-5J (7) ``
Insert cR-11 and solenoid 5QL-6J. 30, “Timer, old,
・・・Naru'' is deleted. 31. In the same book, page 30, lines 14 and 15, "elongation" is corrected to "shrinkage." 32, same book, page 31, line 8 (7) rCR-11J to rC
Corrected to "R-12". 33. "Rod" in the same book, page 31, line 14, is "locked"
Correct. 34, insert ``more than'' after r4'5''J on page 32, line 9 of the same book. 35, "This..." in the same book, page 34, lines 5 and 6.
·····be. ” to be deleted. 36, "1o" in the 17th line of page 37 of the same book is corrected to "7". 37. In Figure 1 of the drawings, the symbol rbJ is shown as not shown in the attached drawings.
Add. 38, Figures 6, 7, 10, and 11 are replaced with the attached drawings. Procedural Amendment (Chief) May 10, 1985 Mr. Manabu Shiga, Commissioner of the Japan Patent Office ■, Indication of Case I] 1959 Patent Application No. 062468 2, Title of Invention Garbage Collection Vehicle 3, Person Making Amendment Case Relationship with Patent applicant Address: 1-48 Jimmu-cho, Yao-shi, Osaka Name: Morita Tokushu Kiko Co., Ltd. 4, Agent: 6 Number of inventions increased by amendment 7, Contents of the amendment targeted by the amendment (Patent Application 1982- No. 062468) ■, The first line of page 28 of the specification is corrected as follows. "About 1 second after the start of the above timer T-1, the connection j2, page 30, line 1 of the same book is corrected as follows. "Electrification" Patent applicant Morita Tokushu Kikou Co., Ltd.

Claims (1)

[Claims] A paraka plate whose upper end is swingably supported and whose lower end is guided to move along a predetermined trajectory; a press plate whose upper end is rotatably supported by the lower end of the paraka plate; and a rod that expands and contracts to move the paraka plate. A garbage loading device having a bunker cylinder that moves up and down, and a press cylinder that rotates the press plate relative to the palaka plate by expanding and contracting a rod and moves the free end downward and upward, is provided in the garbage input box, A garbage collection vehicle comprising, in the garbage storage box, a discharge plate for discharging the garbage loaded and housed in the garbage storage box by the garbage loading device, and a discharge cylinder for driving the discharge plate. A relief valve that opens at a predetermined oil pressure is provided in the flow path of oil flowing out from the discharge cylinder in response to contraction of the cylinder rod via a switching valve that opens when the bunker cylinder rod is extended. A garbage collection vehicle featuring