JP6944904B2 - Garbage truck - Google Patents

Description

The present invention relates to a garbage truck, and more particularly to an operation unit structure of a frame thereof.

Conventionally, as a frame provided on the chassis, a dust storage box, a dust storage box that is connected to the rear opening of the dust storage box and has a dust input port for charging dust, and this dust storage box. A dust collecting vehicle equipped with a dust loading device provided in a loading box for loading dust into a dust storage box and a rear operation unit provided on the periphery of the dust loading port and operating a dust loading device is known. (See, for example, Patent Document 1).

For example, as in Patent Document 2, the operation button used for the rear operation portion of the conventional garbage truck is a push-in type operation button having a spring or a sliding component inside. This push button includes a "loading button" that drives the dust loading device in a cycle, an "up button", a "down button", a "reversal button", an "emergency stop button", etc., and one rear operation. A plurality of these push-type operation buttons are arranged in the portion. Further, the rear operation unit is attached to the dust input box so that the push-in type operation button is exposed to the outside. The operator controls the operation of the loading device by manually pushing and pushing the push-type operation button by applying an operating force.

Japanese Unexamined Patent Publication No. 2010-2023667 Jitsufuku 4-30167 Gazette

Such a conventional push-type operation button on the rear operation unit has many moving parts such as springs and sliding parts, and is used at each place where dust is loaded, so that there is a problem that it is fragile.

In addition, the conventional operation buttons are covered with a rubber cover to prevent rainwater and sewage from entering the sliding parts, but since the operation buttons are frequently pressed, the rubber is damaged and inside the rear operation part. There was a problem that rainwater and sewage could easily enter.

The present invention has been made in view of the above points, and an object of the present invention is to improve the durability of operation buttons in the operation unit of the frame of a garbage truck without impairing the operability. ..

In order to achieve the above object, in the present invention, a non-push-down operation button including a touch sensor is provided so as to be covered with a guide portion that bulges from the surface thereof.

Specifically, in the first invention, a dust storage box provided on the chassis and a dust storage box which is connected to the rear opening of the dust storage box and has a dust charging port for charging dust are formed. A dust collecting vehicle provided with a dust loading device provided in the dust loading box for loading dust into the dust storage box and a rear operation unit provided in the dust loading box is assumed.
The above garbage truck
The rear operation unit includes an operation button having a touch sensor, and at least the outer peripheral edge of the operation button is covered with a guard portion that bulges from the surface of the operation button.

According to the above configuration, by using an operation button having a touch sensor such as a capacitance type, the number of moving parts is reduced and durability is reduced as compared with a conventional push-type operation button having a spring or sliding parts. Excellent for. Further, by covering the outer peripheral edge of the operation button with a guard portion that bulges more than that, erroneous operation can be prevented. That is, since the touch sensor responds only by touching the operation button, if there is no guard part, or the part of the guard part that surrounds the outer peripheral edge of the operation button and the surface of the operation button are substantially on the same surface. If there is, it reacts easily, but according to the above configuration, erroneous operation is prevented. Further, since it is not necessary to push the operation button as in the conventional case, it is not necessary to configure the outer peripheral edge of the operation button with a painful rubber or the like, and rainwater or sewage is less likely to enter.

In the second invention, in the first invention,
A plurality of holes are provided in the guard portion, separate operation buttons are arranged in each hole portion, and a concave-convex portion indicating the position of the operation button is provided at a position corresponding to the operation button in the guard portion. Is provided.

According to the above configuration, since one guard unit can have a role of preventing erroneous operation of a plurality of operation buttons, the number of parts can be reduced as compared with the case where a guard unit is provided for each operation button. In addition, by providing the uneven portion, when the worker fumbles to find one of the plurality of operation buttons in the loading work in a dark place, the position of the operation button is at the position of the uneven portion without directly touching the operation button. Can be judged. In the past, the loading device did not operate just by touching the operation button, but in the present invention provided with the operation button having a touch sensor, it is not possible to search for the desired type of operation button while touching the operation button. , This uneven portion is effective for loading work in a dark place.

In the third invention, in the first invention,
The guard portion is provided with a plurality of holes, and separate operation buttons are arranged in each hole, and the shape of each hole is different for each operation button.

According to the above configuration, since the operator can find out the type of the operation button by touching the guard portion without directly touching the operation button, erroneous operation by groping is prevented.

In the fourth invention, in the second invention,
The uneven portion is formed at a position corresponding to each hole on the side surface of the guard portion.

According to the above configuration, the operator can find out the type of the operation button by touching the side surface of the guard portion without touching the hole portion of the guard portion, so that an erroneous operation due to groping is prevented.

In the fifth invention, in any one of the first to fourth inventions,
The operation button is provided with a lighting notification unit having a light source inside.
The lighting notification unit is configured so as not to light when not in operation but to light only when operating.

According to the above configuration, it is possible to clearly notify the operator that the operation button having the touch sensor has been operated. Further, by turning on the light only during operation, it is possible to prevent the lighting notification unit provided at the rear of the garbage truck from violating the lighting regulation.

In the sixth invention, in the fifth invention,
The operation button is an operation button of a drive unit having a stroke end, and if the drive unit is at the stroke end when the operation button is operated, the lighting notification unit is configured not to light.

According to the above configuration, the operator can easily recognize that the drive unit to be operated is at the stroke end and cannot be operated.

In the seventh invention, in any one of the first to sixth inventions,
The operation button is provided with a vibration notification unit that vibrates when the operation button is operated.
The operation button is an operation button of a drive unit having a stroke end, and is configured so that the vibration notification unit does not vibrate when the drive unit is at the stroke end when the operation button is operated.

According to the above configuration, the operator can recognize that the operation is performed by vibration when the operation button is touched, and when the operation does not vibrate, the drive unit to be operated is at the stroke end and cannot be operated. It is easy to recognize that there is.

In the eighth invention, in any one of the fifth to seventh inventions,
It is equipped with a drive source main switch that operates ON and OFF of power transmission by the drive source of the fixture including the dust loading device.
When the drive source main switch is OFF, the lighting notification unit or the vibration notification unit is configured not to operate.

According to the above configuration, it is safe because, for example, the loading device and the inlet cover cannot be driven while the garbage truck is running or waiting for a signal (parking / stopping). In particular, it is effective for an electric dust vehicle that does not extract power for driving a fixture from a vehicle traveling engine.

As described above, according to the present invention, since the operation button having the touch sensor is provided so as to be covered with the guard portion, it is not necessary to press the operation button, so that the outer peripheral edge of the operation button is easily damaged. Since it is not necessary to use rubber or the like, rainwater and sewage are less likely to enter, and the outer peripheral edge is covered with a guard, erroneous operation can be prevented. Therefore, a highly durable and reliable rear operation unit can be obtained without impairing operability.

It is a perspective view which looked at the automatic opening / closing device of a slot cover and its periphery from the upper right side of the front side. It is a perspective view which looked at the automatic opening / closing device of a slot cover and its periphery from another position on the upper left side of the front side. It is a side view which shows the garbage truck which concerns on embodiment of this invention. It is a rear view of a garbage truck. It is a perspective view which shows the drive motor and its periphery in an enlarged manner. It is a perspective view which looked at the automatic opening / closing device of a slot cover and its periphery from the rear upper left side. It is a perspective view which magnified from the rear side upper left side of the drive motor and its periphery. It is sectional drawing which shows the internal structure of the dust input box. It is a side view which shows the link mechanism of a slot cover and its periphery. It is a side view which shows by partially breaking the rear side of the garbage truck which concerns on embodiment of this invention. It is a flowchart which shows the opening and closing automatic control of a slot cover. It is a graph which shows the operation of the process 1 and 3 of a slot cover. It is a graph which shows the operation of the process 2 and 4 of a slot cover. It is an electric circuit diagram which shows the PLC and its surroundings in a simplified manner. It is a simplified hydraulic circuit diagram of a dust loading device. It is XIIA enlarged perspective view of FIG. 2B which shows the left rear rear operation part and the periphery thereof enlarged. FIG. 2 is an enlarged perspective view of XIIB of FIG. 2A showing an enlarged view of the left rear operation unit and its periphery. It is an enlarged perspective view which shows the left rear operation part enlarged. 12C is a cross-sectional view taken along the line XIID-XIID of FIG. 12C. FIG. 2B is an enlarged perspective view of XIIIA of FIG. 2B showing an enlarged view of the right rear operation unit and its periphery. It is an enlarged perspective view which shows the right rear operation part enlarged. FIG. 13B is a cross-sectional view taken along the line XIIIC-XIIIC of FIG. 13B. It is explanatory drawing of the main part which shows the left side operation button and the upper left side guard part provided on the inclined surface of the left side rear part operation part main body of the garbage truck which concerns on embodiment of this invention. It is explanatory drawing of the main part which shows the left side operation button and the upper left side guard part provided on the inclined surface of the left side rear part operation part main body of the garbage truck which concerns on other embodiment of this invention. It is explanatory drawing of the main part which shows the left side operation button and the upper left side guard part provided on the inclined surface of the left side rear part operation part main body of the garbage truck which concerns on other embodiment of this invention. It is explanatory drawing of the main part which shows the left side operation button and the upper left side guard part provided on the inclined surface of the left side rear part operation part main body of the garbage truck which concerns on other embodiment of this invention.

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

-Composition of garbage truck-
2A and 2B show a garbage truck 1 according to an embodiment of the present invention, and the garbage truck 1 includes a runnable chassis 2 and a driver's cab 3 provided on the chassis 2. .. Further, the dust collecting vehicle 1 is connected to the dust storage box 4 and the rear opening 4a of the dust storage box 4 as a frame on the chassis 2, and a dust charging port 7 into which the dust is thrown is formed. A dust loading box 5 and a dust loading device 6 (see FIG. 6) provided in the dust loading box 5 for loading dust into the dust storage box 4, and an upper end position A and a lower end position B (see FIG. 6). It is provided with an inlet cover 8 that opens and closes the dust inlet 7 by sliding between them. A discharge plate that can slide back and forth may be provided in the dust storage box 4, or the dust input box 5 can be rotated around the upper rotation shaft to open and close the rear opening 4a. It may be configured, or the dust storage box 4 may be configured to be tiltable, but in the following description, the hydraulic cylinder and the like in that case will be omitted.

As shown in FIGS. 6 and 8, the dust loading device 6 of the present embodiment is, for example, a press type, and guide groove members 20 formed of channel steel are reinforced on both side walls 9 of the dust loading box 5. It also serves as a frame and is provided so as to incline from the upper front to the lower rear. In the dust input box 5, an elevating plate 21 that spreads to the full width is housed. On the other hand, the elevating plate support shaft 21a is inserted into the support portions provided at the left and right ends of the upper back surface of the elevating plate 21, as shown by the alternate long and short dash line in FIG. The elevating plate support shaft 21a is arranged so as to match the sliding distance of the elevating plate 21 and project outward from the inside of the side wall 9 beyond the sliding opening 22 formed in the side wall 9 of the dust input box 5. There is. An elevating cylinder provided along the inclination direction of the guide groove member 20 on the outside of the dust input box 5 between the elevating plate support shaft 21a protruding outward from the side wall 9 of the dust input box 5 and the lower part of the dust input box 5. 23 are connected. The elevating plate 21 is reciprocated up and down along the guide groove member 20 by the expansion and contraction operation of the elevating cylinder 23.

At the lower end of the elevating plate 21, one end of the compression plate 24 that extends to the full width in the dust input box 5 is supported so as to be swingable back and forth. The tip of the compression plate 24 is slightly refracted toward the front. A swing cylinder 25 is connected between a connecting portion projecting from the back surface of the compression plate 24 and a support portion provided on the upper portion of the back surface of the elevating plate 21, and the compression plate 24 is expanded and contracted by the expansion and contraction operation of the swing cylinder 25. Is made to swing back and forth. The dust loading device 6 may be of a rotary plate type including a push plate that reciprocates with a hydraulic cylinder and a rotary plate that is driven to rotate.

As shown in FIG. 1B, the inlet cover 8 has a substantially rectangular plate shape, and the rollers 8a provided at both left and right ends move along the rail members 8b provided inside the left and right side walls 9 to slide up and down. It is movable.

As shown in FIG. 7, the tip of the plate-shaped link member 40 is rotatably connected to the rod-shaped end portion 8c in the vehicle width direction protruding in the vehicle width direction at the upper end portion of the slot cover 8. The tip of the outer arm portion 41 is rotatably connected to the other end of the link member 40 by an arm connecting pin 41a. The base end side of the outer arm portion 41 is rotatably supported at a position overlapping the elevating cylinder 23 in a side view.

The outer arm portion 41 includes a pipe member 42 on the base end side and a plate member 43 whose base end side is fixed to the tip end of the pipe member 42 and whose tip end side is rotatably connected to the base end side of the link member 40. ing. The pipe member 42 is made of, for example, a steel pipe, is bent rearward at an intermediate portion in a side view, and is further bent toward the side wall 9 (inward in the vehicle width direction) at the tip end side. The plate member 43 is made of, for example, a pair of steel plates in the vehicle width direction, and is fixed to the pipe member 42 by welding or the like. The link member 40 is rotatable between the pair of steel plates.

The base end side of the outer arm portion 41 is rotatably connected to an arm mounting bracket 44 provided between the elevating cylinder 23 and the dust input port 7 on the side wall 9. The arm mounting bracket 44 includes, for example, a pyramid base 44a whose base end is fixed to the side wall 9, and as shown in FIG. 4, the tip of the pyramid base 44a extends outward from the elevating cylinder 23 in the vehicle width direction. A plate-shaped tip portion 44b is integrally provided. As shown in FIG. 7, the plate-shaped tip 44b extends forward and downward to a position where it overlaps with the piston rod 23a of the elevating cylinder 23 in a side view, and the tip 44b is with the base end side of the pipe member 42. It is rotatably connected.

As shown in FIG. 8, a crossbar 10 connecting the left and right side walls 9 of the dust loading box 5 is provided above the dust loading device 6 in the dust loading box 5. "Upper of the dust loading device 6" means a space above the dust loading device 6, and a part of the dust loading device 6 (for example, a part of the elevating cylinder 23) is viewed from the side of the crossbar 10. May be higher than. The crossbar 10 is made of, for example, a steel pipe having a certain thickness in order to maintain rigidity, but may be made of steel bar.

As shown in FIGS. 1A to 5, a drive motor 11 including an electric motor or the like is fixed on the right side of the crossbar 10 extending to the left and right when viewed from the back side of the center of the left and right sides. The electric power of the drive motor 11 is supplied from, for example, the battery BT (see FIG. 10) on the chassis 2 side. As shown in FIG. 5, the output shaft 11a of the drive motor 11 is provided with a drive pulley 11b that is integrally rotated. The drive motor 11 is fixed to the crossbar 10 via the motor mounting bracket 11c. A transmission belt 12 as a transmission member is hung on the drive pulley 11b. On the other hand, as shown in FIG. 1B, a driven pulley 13a is rotatably supported above the drive pulley 11b and above the dust loading device 6 via an upper support portion 13 having a built-in bearing. The driven pulley 13a is provided at a position shifted to either the left or right from the center of the left and right side walls 9 (in FIG. 1B, the left side when viewed from the front). The upper end side of the transmission belt 12 is hung on the driven pulley 13a. In this way, the transmission belt 12 extends vertically and is driven by the drive motor 11 between the drive pulley 11b and the driven pulley 13a.

Then, one end 14a of the inner arm portion 14 is rotatably connected to the transmission belt 12. Specifically, as shown in FIG. 5, an upper arm support portion 14d is provided on the fixed portion 14c fixed at a predetermined position of the transmission belt 12, and one end of the inner arm portion 14 is provided on the upper arm support portion 14d. 14a is rotatably supported. On the other hand, the other end 14b of the inner arm portion 14 is rotatably connected to the lower arm support portion 14e provided on the upper end side of the inlet cover 8. As shown in FIG. 1B, the lower arm support portion 14e is fixed to the arm mounting bracket 8d having a U-shaped cross section of the slot cover 8. As a result, the inner arm portion 14 moves up and down in accordance with the drive of the transmission belt 12.

That is, by controlling the drive motor 11 to drive the transmission belt 12, the inner arm portion 14 moves up and down, whereby the inlet cover 8 moves between the upper end position A and the lower end position B shown in FIG. The dust inlet 7 is opened and closed by sliding.

The drive motor 11 is controlled by the PLC 15 and the control board 16 as control units. As shown briefly in FIG. 10, the PLC 15 is a programmable logic controller, and the program can be rewritten as appropriate. The control board 16 includes, for example, a microcomputer (microcomputer) and a DAC. DAC is an abbreviation of "Digital Analog Converter", also called "D / A converter", and means a circuit or component that converts a digital signal into an analog signal. The control board 16 is connected to the driver 17, and the driver 17 is connected to the drive motor 11.

As shown in FIGS. 1A and 1B, an upper sensor 18 and a lower sensor 19 for detecting that the input port cover 8 has moved to the front of the upper end position A or the lower end position B are contained in the dust input box 5, respectively. It is provided. Specifically, as will be described later, the lower sensor 19 is provided in the vicinity of the crossbar 10 slightly above the upper edge of the dust input port 7. The upper sensor 18 is provided at the upper end portion inside the dust input box 5.

On the other hand, a plate-shaped detected plate 26 extending vertically is provided at a position corresponding to the upper sensor 18 and the lower sensor 19 on the upper side of the slot cover 8. When the detected plate 26 moves in the vicinity of the upper sensor 18 and the lower sensor 19, its presence is detected. The vertical length of the plate 26 to be detected may be set according to the height of the slot cover 8 to be detected by the upper sensor 18 and the lower sensor 19. As also shown in FIG. 9B, the PLC 15 is configured to receive a signal from the upper sensor 18 or the lower sensor 19 to reduce the rotation speed of the drive motor 11.

Specifically, as shown in FIG. 1B, the upper sensor 18 is attached to the upper sensor so that the input plate 26 is detected before the predetermined position before the input port cover 8 comes to the upper end position A and is completely opened. It is fixed to the upper side of the dust input box 5 via the bracket 18a. As shown in FIG. 1A, the vertical position of the upper sensor 18 can be finely adjusted by using the elongated hole 18b or the like of the upper sensor mounting bracket 18a. Further, the lower sensor 19 passes the lower sensor mounting bracket 19a to the crossbar 10 so that the input plate 26 is detected before the predetermined position before the insertion port cover 8 comes to the lower end position B and is completely closed. Is attached. As shown in FIG. 5, the position of the lower sensor 19 can be finely adjusted by using the elongated hole 19b or the like of the lower sensor mounting bracket 19a.

Next, the input / output state for the PLC 15 that controls the dust loading device 6 and the like will be described with reference to FIGS. 2A, 2B, 6, 10, and the like.

As shown in FIGS. 2A and 2B, the garbage truck 1 is provided with a camera 91 for monitoring the vicinity of the dust input port 7 of the dust input box 5. The camera 91 is connected to, for example, an image processing unit 90 provided in the driver's cab 3 or the like. Specifically, as shown in FIG. 10, the camera 91 is connected to the monitor 93 for monitoring and the image processing unit 90 via the signal distributor 92. The image processing unit 90 is used in a CPU 94 that executes a predetermined program to perform various controls, an image processing unit (DSP95) that acquires image data from a camera 91 and performs known image processing, and a CPU 94 or DSP95. A memory M96 for storing data, a relay switch SW4 which is opened and closed in response to a command from the CPU 94, and the like are also provided. The CPU 94 constitutes a control unit together with the PLC 15 and the control board 16. For example, if the DSP 95 recognizes that a person is in the loading danger detection area, the CPU 94 is configured to open the relay switch SW4 to urgently stop the dust loading device 6. Further, if the DSP 95 determines that a person is in the opening / closing detection area (different from the loading danger detection area) of the slot cover 8, the CPU 94 outputs the determination result to the PLC 15, and the PLC 15 outputs the determination result to the control board 16. Give instructions to open 8. Further, when the loading operation is completed and the PTO switch SWP as the drive source main switch is turned off, the PLC 15 issues an instruction to the control board 16 to close the inlet cover 8.

As shown in FIGS. 2A and 2B, various switches are provided on the front operation unit (not shown) and the rear portion of the dust input box 5 in the driver's cab 3 of the garbage truck 1. Specifically, the garbage truck 1 is provided with a left rear operation unit 50 and a right rear operation unit 60 for operating the fixture and an emergency stop plate SW3 on the left and right peripheral edges of the dust input port 7.

On the other hand, as shown in FIGS. 12A and 12B, the left rear operating portion 50 is fixed to the side wall 9 at the left operating portion recess 5b at the rear end of the side cover 5a on the left peripheral edge of the dust input port 7. As shown in FIGS. 12C and 12D, the left rear operation unit 50 includes, for example, a box-shaped left rear operation unit main body 51 made of a steel plate, a resin molded product, or the like. The left side rear operation unit main body 51 is fixed to the side wall 9 of the left side operation unit recess 5b, and is electrostatically charged on an inclined surface 51a having chamfered corners so that it can be operated from the back surface and the left side surface. It includes a left operation button 54 with a capacitive touch sensor. The left operation button 54 includes, for example, a loading button SW5, a descending button SW6, an ascending button SW7, a reversing button SW8, and an emergency stop button SW1 of the dust loading device 6 from above, and each has a disc shape with a built-in touch sensor. Consists of highly weather resistant touch operation buttons. For at least the upper four buttons for operating the operation of the dust loading device 6 after these left operation buttons 54, the upper left guard portion where the outer peripheral edge of the left operation button 54 bulges from the surface of the left operation button 54. It is covered with 52. That is, the four loading buttons SW5, the descending button SW6, the ascending button SW7, and the reversing button SW8 from the top are covered with the upper left guard portion 52 having an oval thick plate shape. In the present embodiment, the upper left guard portion 52 is integrally formed with the left rear operation portion main body 51. The left upper guard portion 52 is formed so as to project from the inclined surface 51a of the left rear operation portion main body 51. As shown in the cross section in FIG. 12D, the upper left guard portion 52 is formed with, for example, circular button holes 52a, 52b, 52c, 52d vertically and vertically so as to penetrate the inside of the left rear operation portion main body 51. There is. The corresponding disc-shaped high-durability touch operation buttons are built in the button holes 52a, 52b, 52c, and 52d, respectively. The peripheral edges of the button holes 52a, 52b, 52c, and 52d are higher by h1 than the surface of the highly durable touch operation button, so that erroneous operation can be prevented. h1 may be secured, for example, about 5 to 10 mm. On the other hand, the highly durable touch operation button corresponding to the emergency stop button SW1 is, for example, a button hole of a ring-shaped lower left bulging portion 53 formed so as to protrude from the inclined surface 51a of the left rear operating portion main body 51. It is built in the portion 53a, and conversely, the surface of the highly durable touch operation button is higher by h2 than the lower left bulging portion 53 surrounding the outer peripheral edge thereof. This is because the emergency stop button SW1 is an operation button that must be operated immediately, and is rather higher than the lower left bulging portion 53 to make it easier to touch. Further, by providing the above four highly durable touch operation buttons SW5 to SW8 at positions away from each other, it is configured so that a touch error does not occur.

As shown in FIGS. 12B and 12C, the plurality of through holes 55a provided on the left side surface 55 of the left rear operation unit main body 51 have a contact buzzer button SW11 and a loading mode changeover switch, which are relatively infrequently operated. A SW12, a backflow prevention changeover switch SW13, a continuous independent changeover switch SW14, and the like are provided. This switch may or may not be provided, and its type is not limited, such as a push-type switch and a toggle switch.

Further, a handrail 5d is provided behind the left rear operation unit 50 in the dust input box 5. The handrail 5d also prevents erroneous operation due to contact with dust or the like thrown in by the left rear operation unit 50.

On the other hand, as shown in FIGS. 13A to 13C, the right rear operating portion 60 is fixed to the side wall 9 at the right operating portion recess 5c at the rear end of the side cover 5a on the right peripheral edge of the dust input port 7. The right rear operation unit 60 includes, for example, a rectangular parallelepiped right rear operation unit main body 61 made of a steel plate, a resin molded product, or the like and having rounded corners. The right side rear operation unit main body 61 is fixed to the side wall 9 of the right side operation unit recess 5c, and is operated on the right side having, for example, a capacitance type touch sensor on the back surface 61a so that it can be operated from the back surface 61a side. It has a button 64. The right operation button 64 includes, for example, an open button SW9, a close button SW10, and an emergency stop button SW2 of the slot cover 8 from above, and each includes a disk-shaped highly weather-resistant touch operation button having a built-in touch sensor. At least for the open button SW9 and the close button SW10 of the input port cover 8 that operate the opening / closing operation of the input port cover 8 after these right side operation buttons 64, the outer peripheral edge of the right side operation button 64 is larger than the surface of the right side operation button 64. It is covered with a guard portion 62 on the upper right side in the shape of a bulging oval disk. In the present embodiment, the upper right side guard portion 62 is composed of an elliptical plate-shaped member that is separate from the right rear operation portion main body 61, and is fixed to the right rear operation portion main body 61 by, for example, a screw (not shown). There is. As shown in the cross section in FIG. 13C, the upper right guard portion 62 is formed so that, for example, circular button holes 62a and 62b vertically penetrate into the inside of the right rear operation portion main body 61. The corresponding disc-shaped high-durability touch operation buttons are built in the button holes 62a and 62b, respectively. The peripheral edges of the button holes 62a and 62b are higher by h3 than the surface of the highly durable touch operation button, so that erroneous operation can be prevented. h3 may be secured, for example, about 5 to 10 mm. On the other hand, the highly durable touch operation button corresponding to the emergency stop button SW2 is, for example, for the button of the ring-shaped lower right side bulging portion 63 formed so as to protrude from the back surface 61a of the right rear operation portion main body 61. It is built in the hole 63a, and conversely, the surface of the highly durable touch operation button is higher by h4 than the lower right bulging portion 63 surrounding the outer peripheral edge thereof. This is because the emergency stop button SW2 is an operation button that must be operated immediately, and is rather higher than the lower right bulging portion 63 to make it easier to touch.

Each disk-shaped highly weather-resistant touch operation button (five left operation buttons 54 of the left rear operation unit 50 and three right operation buttons 64 of the right rear operation unit 60) is internally as shown in FIG. A plurality of lighting notification units 70 having an LED light source are provided at predetermined intervals in the circumferential direction. These lighting notification units 70 are configured to be lit only during operation, not lit during non-operation. Further, even if each high weather resistance touch operation button is provided with a vibration notification unit (not shown) having a vibration motor (not shown) that vibrates when the high weather resistance touch operation button is operated, in addition to the lighting notification unit 70. good. As will be described in detail later, when each highly weather resistant touch operation button is an operation button of a drive unit having a stroke end, if the drive unit is at the stroke end when each operation button is operated, the lighting notification unit will be activated. It is configured so that it does not light up and the vibration notification unit does not vibrate. Further, when the PTO switch SWP is OFF, the lighting notification unit 70 and the vibration notification unit are configured not to operate.

Further, as shown in FIG. 6, in the dust input box 5, the non-contact switch LS1 for detecting the state in which the elevating cylinder 23 for raising and lowering the elevating plate 21 is fully extended and the state in which the elevating cylinder 23 is most contracted are detected. The non-contact switch LS2, the non-contact switch LS4 for detecting the state in which the swing cylinder 25 for swinging the compression plate 24 is fully extended, the non-contact switch LS3 for detecting the state in which the swing cylinder 25 is fully contracted, and the like are provided. There is. The non-contact switches LS1 and LS2 are switched between the dust input box 5 and the elevating cylinder 23 by disposing a detection body on one side and a detection body on the other side. Further, the non-contact switches LS3 and LS4 are switched between the elevating plate 21 and the swing cylinder 25 by disposing a detection body on one side and a detection body on the other side. The non-contact switches LS1 to LS4 correspond to a sensor unit that detects the operation of the elevating cylinder 23 and the swing cylinder 25, and have a function of sending a detection signal of the operation to the PLC 15. As these non-contact switches LS1 to LS4, the upper sensor 18 and the lower sensor 19, for example, a photoelectric switch, a proximity switch, or the like can be used.

As shown in FIG. 11 in a simplified manner, this hydraulic circuit includes a hydraulic pump P, an oil reservoir T, an electromagnetic control valve V1 that controls expansion and contraction of an elevating cylinder 23, and an electromagnetic control valve that controls expansion and contraction of a swing cylinder 25. It is composed of V2 and the like. The driving force of the vehicle engine (not shown) as the driving source of the fixture is transmitted to the hydraulic pump P via the PTO (power take-off). The electromagnetic control valves V1 and V2 are composed of, for example, an electromagnetic direction switching valve having 6 ports and 3 positions. The electromagnetic control valve V1 has solenoids SOLa and SOLb, and the electromagnetic control valve V2 has solenoids SOLc and SOLd. The electromagnetic control valves V1 and V2 are switched to the upper position or the lower position only when the solenoids are energized, and return to the neutral position when the solenoids are not energized.

As shown in FIG. 10, these various switches SW1 to SW10, non-contact switches LS1 to LS4, upper sensor 18, lower sensor 19, solenoids SOLa to SOLd, and the like are connected to PLC15. The PLC 15 has a signal power supply unit (not shown), a central processing unit, various relay coils, a contact of the relay coil, and the like, and includes a battery BT, a key switch SWK, and a dust loading device 6. It is incorporated in an electric circuit together with a PTO switch SWP (drive source main switch) that operates ON and OFF of power transmission by a drive source (vehicle engine), a maintenance switch SWM, and the like. The PLC 15 is programmed to output to the corresponding solenoids SOLa to SOLd according to a preset procedure based on the input status of the various switches SW1 to SW10, the non-contact switches LS1 to LS4, the upper sensor 18, and the lower sensor 19. Has been done. In the following, when the energization / release of the solenoids SOLa to SOLd will be described, the description of the relay coil will be omitted.

Hereinafter, the above electric circuit will be described in detail. The power supply to the PLC 15 is performed by the battery BT. A key switch SWK and a relay coil CR1 are interposed on the energizing line K2 extending from the positive electrode of the battery BT to the right side of FIG. 10 and reaching the ground line K1 in order from the upstream side. The upstream end of the energizing line K3 is electrically connected between the key switch SWK of the energizing line K2 and the battery BT. Further, the contact cr1 of the relay coil CR1 and the power lamp L are interposed in the energizing line K3. When the relay coil CR1 is turned on and the contact cr1 is closed, the power lamp L is turned on by energizing the energizing line K3. Further, the upstream end of the energizing line K4 is electrically connected so as to branch off from the energizing line K3 between the contact cr1 of the relay coil CR1 and the power lamp L. A PTO switch SWP, various switches SW1 to SW10, non-contact switches LS1 to LS4, an upper sensor 18, and a lower sensor 19 are electrically connected between the energizing line K4 and the PLC15.

Further, the energizing line K5 branching from the energizing line K4 ensures that the PLC 15 is energized during the dust loading operation of the dust loading device 6. The energizing line K5 is a line for inputting a loading continuation signal, and is provided with the above-mentioned emergency stop buttons SW1 and SW2 and an emergency stop plate SW3. As described above, the emergency stop buttons SW1 and SW2 have a bulging surface that is easier to touch than the bulging portion that surrounds the outer peripheral edge thereof. When the energization is cut off by these emergency stop buttons SW1 to SW3, the operation of the PLC 15 is stopped. As a result, all the output of the control signal from the PLC 15 for exciting the solenoids SOLa to SOLd of the electromagnetic control valves V1 and V2 is cut off, the electromagnetic control valves V1 and V2 are returned to the neutral position, and the dust loading device 6 is operated. Is supposed to be stopped.

As described above, when the dust loading device 6 is loaded, both the key switch SWK and the PTO switch SWP are closed, and the PLC 15 is energized by the energizing lines K3 to K5. Since the image processing unit 90 is provided in the middle of the energization line K5, if the relay switch SW4 is opened in this state, the energization to the PLC 15 is cut off and the operation of the dust loading device 6 is stopped. It has become.

-Operation of garbage truck-
Next, the operation of the garbage truck 1 configured in this way will be described.

First, the operation of the dust loading device 6 will be described. The dust loading device 6 is normally stopped at the end of the dust loading process shown by the solid line in FIG. In this state, the elevating plate 21 is arranged at the ascending limit position, and the compression plate 24 is arranged at the forward swinging limit position.

When the worker gets into the garbage truck 1, the key switch SWK is turned on. When the key switch SWK is turned on, the electric power from the battery BT is input to the signal power supply unit of the PLC 15, and the PLC 15 is energized.

The operator drives the garbage truck 1, arrives at the collection site, stops the garbage truck 1, and then turns on the PTO switch SWP. Then, the PTO is connected and the driving of the hydraulic pump P is started. At this time, the electromagnetic control valves V1 and V2 are in the neutral position, and the hydraulic oil discharged from the hydraulic pump P is returned to the oil reservoir T without driving the cylinders 23 and 25. When the PTO switch SWP is OFF, even if the operation buttons SW1, SW2, and SW5 to SW10 are touched, the lighting notification unit 70 or the vibration notification unit does not operate, and each drive unit cannot be operated. Therefore, for example, the loading device and the inlet cover 8 cannot be driven while the garbage truck 1 is running or waiting for a signal (parking / stopping), which is safe.

Further, in this state, since both the elevating cylinder 23 and the swing cylinder 25 are in the fully extended state, the non-contact switches LS1 and LS4 are operated, and the ON signals of the non-contact switches LS1 and LS4 are input to the PLC15. There is. In this state, when the operator touches the loading button SW5 after charging the dust from the dust input port 7 of the dust input box 5, the solenoid SOLd is energized by the PLC 15 and the electromagnetic control valve V2 is turned to the upper position. It will change. As a result, the swing cylinder 25 contracts, and the compression plate 24 is inverted until its compression surface is in a substantially horizontal position. At this time, since the loading button SW5 has a capacitance type touch sensor and does not need to be pushed unlike the push-in type, the loading button SW5, which can be operated frequently, is less likely to deteriorate. On the other hand, since the loading button SW5 is provided at a position deeper than the portion surrounding the outer peripheral edge of the loading button SW in the bulging upper left guard portion 52 including the lower button SW6. It is hard to make a mistake in touching.

When the compression plate 24 reaches the rearward swing limit position, that is, when the swing cylinder 25 is fully contracted, the non-contact switch LS3 is activated, and the PLC 15 returns the electromagnetic control valve V2 to the neutral position and at the same time, the solenoid SOLb. Is energized and the solenoid control valve V1 is switched to the upper position, so that the elevating cylinder 23 contracts and the elevating plate 21 is lowered along the guide groove member 20. As a result, the compression plate 24 connected to the elevating plate 21 descends in parallel while holding the compression surface substantially horizontal, so that dust is separated from the arc surface on the inner bottom surface of the dust input box 5. Can be crushed.

When the elevating plate 21 reaches the descending limit position, that is, when the elevating cylinder 23 is fully contracted, the non-contact switch LS2 is activated, and the PLC 15 releases the energization to the solenoid SOLb to return the electromagnetic control valve V1 to the neutral position. At the same time, the solenoid SOLc is energized to switch the electromagnetic control valve V2 to the lower position. As a result, the swing cylinder 25 is extended from the state where the dust is crushed, and the compression plate 24 is swung clockwise with the shaft support as a fulcrum until the compression surface becomes substantially vertical. As a result, the compression plate 24 can secondarily compress the dust that was temporarily crushed in the previous step with the flat surface of the bottom surface of the dust input box 5.

When the compression plate 24 reaches the forward swing limit position, that is, when the swing cylinder 25 is fully extended, the non-contact switch LS4 is activated, and the PLC 15 releases the energization to the solenoid SOLc to neutralize the electromagnetic control valve V2. At the same time as returning to the position, the solenoid SOLa is energized and the electromagnetic control valve V1 is switched to the lower position. As a result, the elevating cylinder 23 is extended from the end state of the compression stroke, the compression plate 24 is raised in parallel while holding the compression plate 24 so as to be substantially vertical, and the dust compressed in the previous stroke is stored in the dust storage box. Load in 4. Then, when the elevating plate 21 reaches the ascending limit position, that is, when the elevating cylinder 23 is fully extended, the non-contact switch LS1 is activated, and the PLC 15 releases the energization to the solenoid SOLa to put the electromagnetic control valve V1 in the neutral position. Return to. As a result, the loading process is completed.

As described above, the dust loading device 6 operates in the order of the reversing stroke, the crushing stroke, the compression stroke, and the loading stroke (hereinafter, also referred to as the loading cycle) by touching the loading button SW5, and loads the dust. The dust put into the box 5 can be loaded into the dust storage box 4.

On the other hand, the worker may want to perform any one of the above loading cycles independently. In such a case, it is preferable to touch the operation button corresponding to the desired operation among the down button SW6, the up button SW7, and the inversion button SW8. At this time, each of the buttons SW6 to SW8 also has a capacitance type touch sensor, and unlike the push-in type, it does not need to be pushed in, so that it is hard to deteriorate and the upper left side that bulges out from the surface thereof. Since the outer peripheral edge is covered with the guard portion 52, it is difficult to accidentally touch it. If it is detected by the signals of the non-contact switches LS1 to LS4 that the corresponding cylinders 23 and 25 are already at the stroke end when the buttons SW6 to SW8 are touched, the lighting notification unit 70 Does not light up and does not vibrate, so the operator can easily recognize that the corresponding cylinders 23 and 25 are already at the stroke end and cannot be operated.

Next, the control method of the PLC 15 will be described mainly with reference to FIG.

During normal operation when the dust loading device 6 is operating in a normal loading cycle, the key switch SWK, the PTO switch SWP, and the maintenance switch SWM are all in a closed state. As a result, the PLC 15 is energized.

In this state, the loading cycle described above is performed. For example, when the compression plate 24 reaches the rear swing limit position, that is, when the swing cylinder 25 is fully contracted, the non-contact switch LS3 operates as described above. That is, the non-contact switch LS3 is switched from OFF to ON. At this time, since the solenoid SOLb is energized by the PLC 15, the elevating cylinder 23 contracts and the crushing stroke by the compression plate 24 connected to the elevating plate 21 is started.

-Opening and closing operation of the slot cover-
Next, the opening / closing operation of the slot cover 8 according to the present embodiment will be described. As shown in FIG. 7, for example, control between a fully closed state in which the inlet cover 8 is at the lower end position B and is completely closed and a fully open state in which the inlet cover 8 is completely open to the upper end position A will be described.

As shown in FIG. 9A, for example, when the key switch SWK is turned on, the control is started in step S01.

Next, in step S02, the PLC 15 and the CPU 94 determine whether or not the open button SW9 of the right operation buttons 64 is touched, or whether the operation for opening the cover of the person is recognized by the DSP 95 in the open / close detection area. If YES, the process proceeds to step S03, and if NO, the process proceeds to step S06. The open button SW9 also has a capacitive touch sensor, and unlike the push-in type, it does not need to be pushed in, so it does not deteriorate easily, and the upper right guard portion 62 that bulges from the surface removes it. Since the periphery is covered, it is difficult to accidentally touch it. If the slot cover 8 is at the stroke end (fully open position) when the open button SW9 is touched, the lighting notification unit 70 does not light and does not vibrate.

In step S03, the PLC 15 determines whether or not the upper sensor 18 is ON. When the upper sensor 18 is OFF, the process proceeds to step S04 and the process 1 is performed.

In step S04, process 1 is performed. For example, when the insertion port cover 8 is at the lower end position B, the pipe member 42 is outside the piston rod 23a in the vehicle width direction. At this time, the lower sensor 19 detects the slot cover 8 (detected plate 26). As shown in FIG. 9B, the PLC 15 receives the cover open signal and the OFF signal from the upper sensor 18 and sends a cover open ON signal to the control board 16. Then, the control board 16 controls the drive motor 11 to gradually accelerate by voltage control or frequency control for soft start, whereby the drive motor 11 is gradually accelerated to a constant speed v2. As a result, the transmission belt 12 is driven, the inner arm portion 14 rises, and as a result, the input port cover 8 gradually starts to open at a speed v1. Specifically, the link member 40 connected to the vehicle width direction end portion 8c of the upper end portion of the input port cover 8 is centered on the connecting portion with the tip end portion 44b of the arm mounting bracket 44 as the plate member 43 is pulled. The outer arm portion 41 rotates, and the plate member 43 and the link member 40 rise while avoiding contact with other members.

When the drive motor 11 accelerates and the transmission belt 12 reaches a constant speed v2, the inlet cover 8 rises at a constant speed v2. At this time, the positional relationship (distance) between the lower arm support portion 14e of the insertion port cover 8 and the upper arm support portion 14d on the transmission belt 12 side changes, but the inner arm portion 14 rotates with respect to these. Since it is movably connected, the slot cover 8 slides smoothly.

Then, when the slot cover 8 approaches the upper end position A, the upper sensor 18 detects the detected plate 26 and sends a signal to the PLC 15.

Then, the PLC 15 receives the ON signal from the upper sensor 18 and sends an OFF signal for opening the cover to the control board 16. Then, the control board 16 decelerates the drive motor 11 by voltage control or frequency control. That is, the control board 16 gradually decelerates the speed v3 until the drive motor 11 is stopped from the constant speed v2.

On the other hand, when the upper sensor 18 is ON, the slot cover 8 is already opened to some extent and is in front of the fully opened state, so it is necessary to prevent the slot cover 8 from being vigorously opened to the fully opened position. There is. Therefore, the process proceeds to step S05, and the low-speed constant-speed processing of the processing 2 is performed. As shown in FIG. 9C, in the process 2, the slot cover 8 opens at a constant low speed v4 only while the open button SW9 of the slot cover 8 is touched. Since it is a low speed v4, there is little impact even if it is opened to the fully open position.

Similar control is performed when the inlet cover 8 is closed in step S06. Although detailed description will be omitted, in step S06, the PLC 15 and the CPU 94 determine whether or not the closing button SW10 of the slot cover 8 is touched, or whether the DSP95 recognizes the operation for closing the cover of the person in the open / close detection area. judge. If YES, the process proceeds to step S07, and if NO, the process returns to step S02.

In step S07, the PLC 15 determines whether the lower sensor 19 is ON. When the lower sensor 19 is OFF, the process proceeds to step S08 and the process 3 is performed.

In step S08, the process 3 in which the opening and closing is the reverse (upside down) of the process 1 is performed. The PLC 15 receives the cover closing signal and the OFF signal from the lower sensor 19 and sends the cover closing ON signal to the control board 16. Then, the control board 16 controls the drive motor 11 to gradually accelerate by voltage control or frequency control for soft start, whereby the drive motor 11 is gradually accelerated from the speed v1 to a constant speed v2. .. As a result, the transmission belt 12 is driven, the inner arm portion 14 is lowered, and as a result, the input port cover 8 gradually starts to be lowered at a speed v1. When the drive motor 11 accelerates and the transmission belt 12 reaches a constant speed v2, the inlet cover 8 descends at a constant speed v2. Then, when the slot cover 8 approaches the lower end position B, the lower sensor 19 detects the detected plate 26 and sends a signal to the PLC 15. Then, the PLC 15 receives the ON signal from the lower sensor 19 and sends an OFF signal for closing the cover to the control board 16. Then, the control board 16 decelerates the drive motor 11 by voltage control or frequency control. That is, the control board 16 gradually decelerates the speed v3 until the drive motor 11 is stopped from the constant speed v2.

On the other hand, when the lower sensor 19 is ON, the slot cover 8 is already closed to some extent and is in front of the fully closed state, so that the slot cover 8 is not vigorously closed to the fully closed position. Need to be. Therefore, the process proceeds to step S09, and the low-speed constant-speed processing of the processing 4 is performed. In the process 4, the inlet cover 8 is lowered at a low constant speed only while the closing button SW10 of the inlet cover 8 is touched. Since it is low speed, there is little impact even if it is closed to the fully closed position. The close button SW10 also has a capacitance type touch sensor, and unlike the push-in type, it does not need to be pushed in, so it does not easily deteriorate, and the upper right guard portion 62 that bulges out from the surface of the close button SW10 outside. Since the periphery is covered, it is difficult to accidentally touch it. If the slot cover 8 is at the stroke end (fully closed position) when the close button SW10 is touched, the lighting notification unit 70 does not light and does not vibrate.

As described above, according to the present embodiment, by using the operation buttons SW1, SW2, SW5 to SW10 having a touch sensor such as a capacitance type, the operation buttons are compared with the conventional push-type operation buttons having springs and sliding parts. As a result, the number of moving parts is reduced and the durability is excellent. Further, by covering the outer peripheral edges of the operation buttons SW5 to SW10 with guard portions 52 and 62 that bulge from the outer peripheral edges, erroneous operation can be prevented. That is, since the touch sensor responds only by touching the operation buttons SW5 to SW10 by the hand, the touch sensor may not have the guard portions 52 and 62, or may operate with the portion of the guard portions 52 and 62 surrounding the operation buttons SW5 to SW10. When the surfaces of the buttons SW5 to SW10 are substantially on the same surface, the reaction easily occurs, but in the present embodiment, erroneous operation is prevented. Further, since it is not necessary to push the operation button as in the conventional case, it is not necessary to configure the outer peripheral edges of the operation buttons SW1, SW2, SW5 to SW10 with a painful rubber or the like, and rainwater or sewage is less likely to enter.

According to the configuration of the embodiment of the present invention, a plurality of lighting notification units 70 having LED light sources are provided inside each operation button, and these lighting notification units 70 do not light during non-operation but light only during operation. Since it is configured as described above, it is possible to clearly inform the operator that the operation buttons SW1, SW2, and SW5 to SW10 having the touch sensor have been operated. Further, by lighting only during operation, it is possible to prevent the lighting notification unit 70 arranged at the rear of the garbage truck 1 from violating the lighting regulation.

Further, the operation buttons SW6 to SW10 are the operation buttons SW6 to SW10 of the input port covers 8 and the cylinders 23 and 25 having the stroke end, and when the operation buttons SW6 to SW10 are operated, the input port covers 8 and the cylinders 23 and 25 are operated. When is at the stroke end, the lighting notification unit 70 does not light up and does not vibrate, so that the operator can easily recognize that the drive unit to be operated is at the stroke end and cannot be operated.

Therefore, according to the dust collecting vehicle 1 according to the present embodiment, it is necessary to push the operation button SW5 to SW10 by providing the operation buttons SW5 to SW10 having the touch sensor so as to be covered with the guard portions 52 and 62. Since it is eliminated, it is no longer necessary to configure the outer peripheral edges of the operation buttons SW5 to SW10 with rubber that is easily damaged, making it difficult for rainwater and sewage to enter, and the outer peripheral edges are covered with guards 52 and 62, so erroneous operation is possible. Can be prevented. Therefore, the rear operating portions 50 and 60 having high durability and reliability can be obtained without impairing the operability.

(Other embodiments)
The present invention may have the following configuration with respect to the above embodiment.

That is, in the above embodiment, the guard portions 52 and 62 are each formed in an elliptical shape, and separate operation buttons SW5 to SW10 are arranged in each hole portion. For example, as shown in FIGS. 15 and 17. An uneven portion 56 indicating the position of the operation buttons SW5 to SW10 may be provided at a position corresponding to each of the operation buttons SW5 to SW10. In FIG. 15, a notch-shaped uneven portion 56 is formed on the side surface of the upper left guard portion 52 in the vehicle width direction corresponding to the height position of each operation button SW5 to SW8, and the entire upper left guard portion 52 is formed. Shows an example of a cloud-shaped plate. Further, in FIG. 16, protrusions having different shapes (for example, ○, △, ▽, □) are provided at the lateral positions of the operation buttons SW5 to SW8 on the upper left guard portion 52, and these are provided as uneven portions. It is set to 56. In this way, one guard unit 52, 62 can have a role of preventing erroneous operation of a plurality of operation buttons SW5 to SW10. Therefore, as compared with the case where the guard units 52, 62 are provided for each operation button SW5, SW10. Therefore, the number of parts can be reduced. Further, by providing the uneven portion 56, when the worker fumbles to find one of the plurality of operation buttons SW5 to SW10 in the loading work in a dark place, the uneven portion without directly touching the operation buttons SW5 to SW10. The position of the operation buttons SW5 to SW10 can be determined at the position of 56. Conventionally, the loading device did not operate by touching the operation buttons, but in the present embodiment provided with the operation buttons SW5 to SW10 having a touch sensor, a desired type of operation is performed while touching the operation buttons SW5 to SW10. Since the buttons SW5 to SW10 cannot be searched for, the uneven portion 56 is effective for loading work in a dark place.

Further, in the above embodiment, the guard portions 52, 62 are provided with a plurality of circular button hole portions 52a, 52b, 52c, 52d, 62a, 62b, and these button hole portions 52a, 52b, 52c, The operation buttons SW5 to SW10 corresponding to 52d, 62a, and 62b are arranged, respectively, but as shown in FIG. 16, the inner side of the button hole is made circular so that a disk-shaped operation button can be fitted. The outer opening end may have a different hole shape (for example, ○, Δ, ▽, □) corresponding to each of the operation buttons SW5 to SW10. According to this configuration, the operator does not directly touch the operation buttons SW5 to SW10, but touches the open ends of the button holes 52a, 52b, 52c, 52d, 62a, 62b by hand to operate the operation buttons SW5 to SW5. Since the type of SW10 can be found, erroneous operation due to fumbling is prevented.

In the above embodiment, the garbage truck 1 has a PTO that extracts power for driving a fixture from the vehicle traveling engine, but it may be an electric garbage truck that does not have this PTO. In this case, especially when the drive source main switch is OFF, the lighting notification unit or vibration notification unit of the operation buttons SW5 to SW10 does not operate, and if each drive unit cannot be operated, the dust collecting vehicle 1 may be running or When waiting for a signal (while the vehicle is parked or stopped), for example, the loading device or the inlet cover 8 cannot be driven, which is safe.

It should be noted that the above embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its applications and applications.

1 Garbage truck 2 Chassis 4 Dust storage box 4a Rear opening 5 Dust loading box 5b Left operation part recess 5c Right operation part recess 6 Dust loading device 7 Dust loading port 8 Input port cover 15 PLC
23 Lifting cylinder 25 Swing cylinder 50 Left rear operation part 51 Left rear operation part Main body 52 Left upper guard part 52a, 52b, 52c, 52d Button hole 53 Lower left bulge 53a Button hole 55 Left side 55a Penetration Hole 56 Concavo-convex part 54 Left operation button 60 Right rear operation part 61 Right rear operation part Main body 62 Right upper guard part 62a, 62b Button hole 63 Lower right bulge 63a Button hole 64 Right operation button 94 Central processing Device (CPU)
SW1 Emergency stop switch (operation button)
SW2 Emergency stop switch (operation button)
SW5 Loading button (operation button)
SW6 Down button (operation button)
SW7 Up button (operation button)
SW8 Reverse button (operation button)
SW9 open button (operation button)
SW10 close button (operation button)
SWP PTO switch (drive source main switch)

Claims (8)

The dust storage box provided on the chassis, the dust storage box which is connected to the rear opening of the dust storage box and has the dust input port for inserting the dust, and the dust storage box provided in the dust storage box as described above. In a dust collecting vehicle equipped with a dust loading device for loading dust into a dust storage box and a rear operation unit provided in the dust loading box.
The rear operating portion includes a plurality of operation buttons with touch sensor, at least the outer peripheral edge of said plurality of operation buttons are covered with a guard portion that bulges from the surface of said plurality of operation buttons, the guard portion, It is formed long and continuously in one direction so that a plurality of holes are lined up, and separate operation buttons are arranged in each hole.
An emergency stop button is provided on the ring-shaped bulge portion of the rear operation portion provided at a position distant from the guard portion in the longitudinal direction so that the surface is higher than the ring-shaped bulge portion. A garbage truck that features <br />. In the garbage truck according to claim 1.
A position corresponding to the operation buttons of the guard portion, refuse collection vehicles, characterized in that the cut shape ridge portions indicating the position of the operation button is provided. In the garbage truck according to claim 2.
The garbage truck is characterized in that the uneven portion is formed at a position corresponding to each hole portion on the side surface of the guard portion. In the garbage truck according to any one of claims 1 to 3,
The operation button is provided with a lighting notification unit having a light source inside.
The garbage truck is characterized in that the lighting notification unit is configured so as not to light when not in operation but to light only when operating. In the garbage truck according to claim 4.
The operation button is an operation button of a drive unit having a stroke end, and if the drive unit is at the stroke end when the operation button is operated, the lighting notification unit is configured not to light. A characteristic garbage truck. In the garbage truck according to any one of claims 1 to 5,
The operation button is provided with a vibration notification unit that vibrates when the operation button is operated.
The operation button is an operation button of a drive unit having a stroke end, and if the drive unit is at the stroke end when the operation button is operated, the vibration notification unit is configured not to vibrate. A characteristic garbage truck. In the garbage truck according to claim 4 or 5.
It is equipped with a drive source main switch that operates ON and OFF of power transmission by the drive source of the fixture including the dust loading device.
A garbage truck characterized in that the lighting notification unit is configured not to operate when the drive source main switch is OFF. In the garbage truck according to claim 6.
It is equipped with a drive source main switch that operates ON and OFF of power transmission by the drive source of the fixture including the dust loading device.
The vibration notification unit is configured not to operate when the drive source main switch is OFF.
A garbage truck that features that.

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