KR20190089499A - A Waste collective vehicle furnished with safe device for following workers - Google Patents

Abstract

The present invention relates to a waste collecting vehicle including a safety device for a following worker. More specifically, the waste collecting vehicle including the safety device for a following worker is formed to vertically move or seal a work device installed in the rear of a cargo box in accordance with a control command of a control unit by the control of a work device control unit installed in a periphery of the driver′s seat. The waste collecting vehicle including the safety device for a following worker comprises: a work device descent sensor sensing the descent of the work device while the work device descents to seal the rear of the open cargo box or to load waste by control of the work device control unit, wherein the work device descent sensor also transmits a signal to the control unit by sensing the descent of the work device on one side of the cargo box for the work device not to descent to a predetermined height or less; and a control switch by both hands, which is installed on the outer surface in the rear of the cargo box to be controlled by a following worker so that the work device in which the descent is stopped in accordance with the sensing of the work device descent sensor descends again to completely seal the rear of the cargo box.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a garbage collection vehicle having a rear worker safety means,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage collection vehicle equipped with rear worker safety means, more particularly, to a garbage collection vehicle equipped with a rear worker safety means, The present invention relates to a garbage collection vehicle provided with a rear worker safety means for preventing various safety accidents from being caused by an operation.

The garbage collection vehicle is classified as a special purpose vehicle, and various devices for collecting the garbage in the loading box of the vehicle are provided. Particularly, the loading box for loading the garbage is completely different from the ordinary vehicles.

The types of garbage collection vehicles are as follows: a squeeze-type garbage truck that squeezes garbage by using a loading device parker composed of a rotating plate and a flat plate, and discharges the discharged garbage dump, and a loading device hopper comprising a slide plate and a compression plate A garbage truck having a crushing type garbage truck which compresses garbage and discharges the garbage by discharging the garbage inside the garbage compartment, and a pulling hook arm of the vehicle which is configured to detach the load box to the vehicle, A food garbage truck configured to lift up a food garbage can to an upper portion of a loading box by using an elevating means having a loading port on an upper portion of a loading box in a closed state, And a recycled product that collects only recycled products And a private garbage collection vehicle.

In such a variety of garbage collection vehicles, there is a working device for loading garbage in the rear of the loading box in the case of a compression type and compression type garbage collection vehicle in which the garbage is loaded and dropped from the rear of the loading box, Is lifted up to the upper surface of the rear end of the loader, and then the working device is operated to load the garbage bag stacked on the upper surface of the rear end of the loader box by forcibly pressing or compressing the bag into the loading bag.

In addition, in the case of a food waste collection vehicle, food waste contained in a container is introduced into the container through the upper portion of the container, and the food waste filled in the container is opened and discharged through the rear door.

In addition, in the case of a recycling garbage collection vehicle, a vehicle designed to collect only recyclable products, is constructed such that the recycled garbage is loaded into the loading box by the manual operation of the operator and the recycled garbage collected in the loading box is discharged by dumping the loading box.

Most of such garbage collection vehicles include a driver who operates the driver's seat and remote control of the pump and discharge related devices provided behind the loading box, and a driver who inputs at least one of the garbage cans or recycling garbage into the loading device at the rear of the vehicle The rear worker goes to the garbage collection vehicle as a set and collects the garbage.

That is, the hopper and the work device installed in the loading box are configured so that the driver can perform operations related to the discharging operation in the driver's seat, and the rear operator is configured to control the operation and the operation of the loading device related to the loading operation.

In the course of carrying out a series of garbage collection tasks such as loading of garbage, moving of vehicles, and discharging of garbage to a garbage collection vehicle using such a garbage collection vehicle and collection method, various safety accidents are increasingly occurring. Especially, There are more and more cases in which a part of the body is put on the loading device or the vehicle is crashed and the serious human casualty accident occurs.

As an example of an accident, a part of the body of the worker has been cut into a load device that rotates in order to push the trash into the loader while loading the trash in the loader, and a part of the body is cut and died.

As another example, in the process of discharging the waste in the loading box, the operator moves between the open hopper (or "parka") and the loading box to separate the waste held in the loading device by the operator. Accidental death between the loading box and the hoop occurred.

In addition, various types of accidents such as an accident that a rear worker rides on a frame, a side guard, a rear safety plate of a vehicle in which a special riding means is not provided from the rear of the vehicle during the moving process of the vehicle, have

Therefore, when the vehicle moves in the loading device rearward of the loading device, in the opening / closing operation of the hopper, or in the rear of the vehicle, the rear operator and the driver, It is urgent to develop means for mutual communication or a safety device for preventing an accident that the working device is operated while the safety state of the rear worker is maintained.

- Korean Patent Registration No. 10-1668005 (Registered on October 16, 2014, entitled "Garbage collection vehicle with electric shutter device") - Korean Patent Registration No. 10-1802984 (Registered on November 31, 2017, entitled "Door Opening / Closing Device of Garbage Truck Cover for Garbage Truck")

SUMMARY OF THE INVENTION The present invention has been made to solve the problems that have occurred in the conventional garbage collection vehicle, and it is an object of the present invention to allow a rear operator to perform final control of a workplace value behind a loader and a rear door, And to provide a garbage collection vehicle equipped with a rear worker safety means for preventing a rear worker from being injured or being killed by an operation of the worker.

In addition, the present invention makes it possible to communicate between a driver located in a vehicle interior and a rear worker performing a work from the rear of the vehicle, so that the driver can grasp the rearward state of the load frame not visible in the driver's view, The present invention provides a garbage collection vehicle provided with a rear worker safety means for preventing garbage collection from being hurt.

In addition, the present invention provides a means by which a rear worker can safely ride on a vehicle when the vehicle is moved after the garbage is loaded, thereby making it possible to safely move the vehicle, and it is also possible for the driver to easily grasp that the rear worker rides in the rear of the loader. The present invention also provides a garbage collection vehicle equipped with a rear worker safety means for enabling safe operation of the garbage collection vehicle.

In order to achieve the above-mentioned object, the garbage collection vehicle provided with the rear worker safety means according to the present invention is characterized in that the garbage collection vehicle provided with the rear worker safety means includes a door A lower portion of the work device is lowered to a lower height than the lower portion of the lower portion of the loading device, A work device descending sensor for detecting the descent of the work device is installed and the work device in which the descending is stopped according to the detection of the work device descent sensor is lowered again so that the loader can be completely closed. In a configuration in which a positive operation switch is provided so as to enable the operation of the rear operator Eojinda.

In addition, a rear folding pedestal for boarding a rear worker, which is folded in parallel or vertically with respect to the ground, is provided at a rear end of the loading box, and a board- And a warning means is provided in the vicinity of the driver's seat so as to provide the driver with a ride on the boarding platform in accordance with the detection signal of the boarding floor sensor.

In addition, at least one handle gripped by a worker on the boarding platform may be provided at an upper rear portion of the loading platform on which the boarding board is installed, and the handle portion may be provided with a dragging preventing means The foot pedestal has a structure in which a sliding portion is formed on an upper surface of the pedestal, while a penetrating portion is formed in a vertical direction so that dust or foreign matter can be discharged to the lower portion.

In addition, the discharge hose or the outlet port through which the working oil is discharged from the lifting cylinder when the working device is lowered by the operation of the lifting cylinder of the working device is abruptly dropped due to its own weight due to the sudden hydraulic pressure loss due to the leakage of the working oil during the discharge hose failure. And a hose burst check valve for preventing the hose burst check valve.

In addition, an emergency power switch capable of forcibly shutting off all the power supplied to the vehicle engine and the work device by the rear operator is provided on the rear outer side surface of the loading box to forcibly cut off the power of the vehicle, A microphone and a speaker capable of communicating with each other between a driver sitting in a driver's seat and an operator performing a work in the rear of the loader are provided at the rear of the driver's seat and the loader of the vehicle, So that the safety of the rear worker can be grasped in real time by the bidirectional communication so as to minimize the occurrence of safety accidents during the loading of the garbage and the movement of the vehicle.

The garbage collection vehicle provided with the rear worker safety means according to the present invention is a vehicle in which the rear worker performing the garbage collection and unloading operations independently from the rear of the vehicle is injured or in danger of being injured by the vehicle, Thereby preventing the injured person from losing his / her mind, thereby further improving the safety of the rear worker.

Particularly, the present invention is configured such that when a driver arbitrarily moves down a work unit in a driver's seat of a vehicle, the work unit is not completely closed, but is spaced apart from the bottom of the load unit by a predetermined height between the bottom of the load unit and the work unit, The present invention also provides a garbage collection vehicle that can prevent a variety of hazards caused by being laid or laid on a work device by allowing a worker to be finally lowered and sealed by operating a pneumatic operation switch provided in the garbage collection vehicle.

In addition, when the hydraulic hose of the lifting cylinder for controlling the lifting and lowering of the heavy working apparatus despite the addition of various safeguards is ruptured due to an excessive load and a hydraulic loss is generated, the descending working device does not dive So that the rear worker is prevented from being squeezed by the descending working device, thereby making it more useful for respecting the life of the worker and preventing the safety accident.

1 is a side view of a garbage collection vehicle equipped with rear worker safety means according to the present invention,
FIG. 2 is an exploded perspective view of a part of a garbage collection vehicle provided with a rear worker safety means according to the present invention,
3 is a circuit diagram showing the operation of a hydraulic control switch in a garbage collection vehicle provided with a rear worker safety means according to the present invention,
FIG. 4 is a graph showing the degree of motion of a boarding foot in a garbage collection vehicle equipped with a rear worker safety means according to the present invention,
5 is a sectional view and partially enlarged view of the hose burst check valve provided in the hopper lifting cylinder,
6 is a circuit diagram showing the operational configuration of the emergency power switch,
Fig. 7 is an installation configuration diagram of a communication means capable of mutual communication between a driver and a rear worker.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a specific embodiment of a garbage collection vehicle (hereinafter abbreviated as 'garbage collection vehicle') equipped with a rear worker safety means according to the present invention will be described in detail with reference to the accompanying drawings.

However, in the detailed description of the present invention, a description of a general known technical structure, a principle of operation, and the like of a conventional garbage collection vehicle will be omitted, and a detailed description will be given focusing on the features of the present invention.

In addition, the present invention can provide safety devices necessary for various types of garbage collection vehicles in various forms and various applications. In the detailed description of the present invention, according to the use of the garbage collection vehicle, The names of the detailed apparatuses such as the doors are collectively referred to as working apparatuses.

FIG. 1 is a side view of an entire structure of a garbage collection vehicle 100 according to the present invention, and FIG. 2 is a partial view of a rear portion of a garbage truck.

Referring to FIGS. 1 and 2, a garbage collection vehicle 100 according to the present invention includes a driver's seat 10 disposed in front of a vehicle, The driver's seat 10 is provided with a work device operating portion 20 for allowing a driver to operate the work device 40 provided in the rear loading bin 30 and a boarding foot 70 And an alarm means 15 for informing the driver of whether or not the rear worker has boarded the boarding board 70. [

In addition, a working device 40 having a structure capable of being vertically opened or closed can be provided at the rear end of a fixed volume loading box 30 configured to load the garbage, and a rear worker can be loaded on the rear side of the loading box (Not shown).

In order to prevent the operator from slipping when the glove is gripped while wearing the boarding platform 70, the handle 37 having the slippage preventing means 38 is disposed at the upper end of the boarding platform 70 Or more.

A pneumatic manipulation switch 60 is provided on the outer side of the rear side of the loading box so that the rear worker performing the garbage collection work at the rear of the vehicle can be operated with both hands to finally close or close the loading device do.

That is, although the garbage collection vehicle 100 according to the present invention is primarily capable of lifting or opening / closing operations of the work device installed in the rear of the loader by operating the operation device operating portion by the driver in the driver's seat, The rear worker secondarily operates the pneumatic control switch 60 in the rear of the vehicle in a state in which the apparatus is not completely lowered or sealed so that a constant space is defined between the bottom surface of the loader and the working device, The lowering or the closing is made so as to enable complete sealing of the loading box.

To this end, at least one work device descent sensor 42 for detecting the descent of the work device is provided on the rear surface of the loader in order to sense the position where the work device is lowered, and the work device descent sensor 42 When the lowering of the working device is sensed, the sensed signal is transmitted to the control part to interrupt the operation signal of the working device operating part 20 to stop the lowering of the working device. By the operation of the positive operation switch 60 The falling signal of the interrupted work device is restored (connected) again so that the work device is continuously lowered.

In addition, a speaker 32 is provided at the rear of the loading box to transmit the contents of what the driver of the driver's seat speaks to the rear worker. A microphone 34 for transmitting the speech of the rear worker to the driver in the driver's seat is provided at the lower- A microphone for transmitting a driver's voice to a rear operator and a speaker for outputting a voice of a rear operator are installed in the driver's seat so that the driver and the rear operator can communicate with each other at the time of work so that the rear operator It is configured to enhance safety.

Further, an emergency power switch 65 is additionally provided in the middle portion of the positive operation switch 60 so that a rear worker who performs a garbage collection work at the rear of the vehicle is required to forcibly stop the working device and the vehicle engine The emergency power switch 65 is pressed to shut off all the power sources of the vehicle, thereby effectively preventing a safety accident from occurring due to continuous operation of the work device.

On the other hand, the boarding platform 70 provided at the rear end of the loading box has a plurality of penetrating portions 72 formed in the vertical direction so that various dusts and foreign substances on the operator's feet are not accumulated on the upper surface of the footing plate To be discharged.

In addition, the boarding foot 70 is hinged to the rear end of the vehicle so that it can be folded and folded. When the worker is not aboard, the spring 74 is provided at the lower end or one side thereof, A limit switch is provided between the boarding platform 70 and the vehicle body so as to inform the driver in the driver's seat of the detection of the folding and unfolding of the boarding platform 70, The sensing signal of the limit switch is transmitted to the control unit so that the alarm unit 15 provided in the driver's seat is operated.

Fig. 3 schematically shows an operational configuration of the above-described positive operation switch 60. As shown in Fig.

The positive operation switch 60 is a manual operation switch that is separated from the left and right sides by a predetermined distance and is powered when the operator presses with both hands. The operation switch includes a work device lowering sensor 42 installed between the rear end of the loader and the work device, When the operator manually depresses the positive operation switch 60 after the electric signal transmitted to the work device elevating and lowering cylinder is sensed by sensing the descent of the work device, the descent signal of the work device is transmitted to the work device descent sensor 42 So that the lowering of the working device is completed.

That is, a work device capable of being vertically opened and closed at the rear of the loading box or having a vertical lift operation is a state in which a minimum distance is separated from the bottom surface of the loading box even if the lowering operation is primarily performed through operation of a work device operating portion provided in the driver's seat, A first descending step in which the rear portion of the loading box is partially opened while the distance from the bottom surface to the lower end of the working device is lowered to a height at which the distance from the bottom surface of the loading device is maintained to about 50 to 70 cm, And a second lowering step of completely closing the rear of the loading unit by performing an additional lowering operation of the stopped working unit through the operation of the positive operation switch 60 which can be operated simultaneously with the lowering operation and the closing operation of the working unit.

Accordingly, when the driver operates the work device lowering switch through the control of the work device operating section 20 at the driver's seat, the lowering signal of the work device is transmitted to the work device lowering sensor 42 and the positive operation switch 60, but both terminals of the positive operation switch 60 are kept open, and the working device fall detection sensor 42 maintains the state where the terminals a and b are mutually connected, The lowering signal is sent to the cylinder, and the work device is lowered.

In the process of lowering the work device from the upper part to the lower part, the work device installed at a certain height of the rear end of the loader senses the lowering of the work device by the sensor 42 and sends a down signal to the work device up / The connection terminals of the work machine and the work machine are short-circuited so that the signal of the work device operation unit can no longer be transferred to the work equipment lifting and lowering cylinder.

On the other hand, in the working device fall detection sensor 42, the connection terminals of the operation unit control signals of the driver's seat are short-circuited to connect the operation unit control signals of the driver's seat, The signal of the operation device control unit still remains in a state in which the signal can not be transmitted to the work device raising and lowering cylinder since the terminal of the work device 60 is opened.

At this time, when the worker who is carrying out the garbage collection operation at the rear of the vehicle presses the positive operation switch 60 provided on the outer side of the vehicle rear side, the shorted terminal of the operation switch 60 is connected and the work device fall detection sensor 42, The worker's lowering signal is transmitted to the worker's up / down cylinder through the terminal ⓒ, and the worker that has been stopped is lowered.

As described above, when the work device is lowered first by the signal of the operation device control portion controlled by the driver's seat and the work device lowered by a certain distance comes into contact with the work device fall detection sensor, a signal transmitted to the work device lift- The worker performing the work in the rear of the vehicle is interrupted and the down signal of the work device is transmitted to the elevating and lowering cylinder by the operation of the positive operation switch 60 provided on the outer side of the rear surface of the vehicle loading lane, As the lowering takes place, the rear of the loading box is completely sealed.

4 shows a configuration of a boarding footboard 70 installed at the rear of the vehicle and a configuration and operation relationship of the warning means 15 for displaying an alarm signal according to the folded state of the boarding board 70 and informing the driver Respectively.

As shown in Fig. 4, a foldable pedestal 70 is provided on one side or both sides of the rear end of the loading box of the vehicle, which is folded in parallel or perpendicular to the ground, A limit switch 75 is provided at a connection portion which is connected to the vehicle so that the contact of the limit switch 75 is short-circuited or connected according to the rotation angle of the boarding foot 70, ) To inform the driver whether the board is folded or not, through sound or light.

The occupant footrest 70 constructed as described above is mounted on the loading footrest 70 after the garbage is loaded on the loading platform from the rear of the vehicle. When the occupant moves along with the vehicle, the load footrest 70 is unfolded in parallel with the ground, 75 are connected to the contact of the limit switch, and the signal generated when the contact of the limit switch is connected is transmitted to the control unit, and a predetermined signal is sent to the alarm means 15 installed in the driver's seat so that a predetermined warning light And the driver judges that the operator is aboard the boarding platform (70) by watching the warning light (or a warning sound) of the warning means, and starts the vehicle safely.

In addition, while the worker is working on the ground for garbage collection, the boarding foot 70 is folded at a certain angle by the compression force (or tensile force) of the spring, so that the contact of the limit switch 75 is short- Is transmitted to the alarm means provided on the driver's seat through the control unit so that a warning light (or a warning sound) different from that when the boarding pass is unfolded is illuminated, and the driver does not board the driver's seat on the boarding board through a warning light or a warning sound It is judged that the garbage loading operation is still carried out and the vehicle is not started.

According to the folded state of the boarding platform 70, the warning means 15 provided in the driver's seat outputs warning lights of different colors or different tone colors, So that it is possible to prevent a safety accident from occurring due to a dangerous behavior in which a worker rushes in the car in the process of departing from a state in which the rear worker is not boarding the vehicle.

On the other hand, Fig. 5 shows an example of another safety device.

That is, the safety device shown in FIG. 5 includes a hydraulic hose for supplying working oil to the lifting and lowering cylinder 45 to enable operation of the lifting and lowering cylinder, that is, a lifting cylinder The discharge hose through which the hydraulic oil is discharged for descending is rapidly discharged due to breakage or damage, etc., and the pressure of the pressure in the lifting cylinder lowers rapidly, so that the working device is rapidly lowered, A hose burst check valve 50 is provided on the side of the outlet port or the discharge hose 46 so as to gradually discharge the working oil from the working device raising and lowering cylinder.

That is, the hose burst check valve 50 is inserted into the discharge hose 46 or the outlet port on the working machine lifting / lowering cylinder side. The hose burst check valve 50 includes a cylindrical cylindrical body 51, A lifting rod 52 which is inserted through a central portion of the lifting rod 52 and which is vertically lifted and lowered within a predetermined displacement by externally compressing a coil spring 53 at an outer periphery of the lifting rod 52, A penetrating portion 54 formed so as to penetrate and to discharge the operating oil and a connecting portion 54 connected to the upper side lifting rod 52 of the penetrating portion 54 for blocking the flow of the hydraulic fluid discharged to the penetrating portion 54, And a disk 55 having a through hole 56 formed therein.

The hose burst check valve 50 configured as described above receives a high pressure in the hydraulic system when the working device is raised or opened while the lifting cylinder of the working device is extended. In this state, the hydraulic hose, that is, When the discharge hose is ruptured due to defects, external impacts, or damage, the hydraulic fluid filling the interior of the lifting cylinder of the working device suddenly leaks and the hydraulic pressure drops to release the extension state of the lifting cylinder of the working device, There is always a possibility that an accident occurs in which a part of the body is injured or a life is severely injured when a rear worker who is working on or near the loading box falls down.

Accordingly, in the present invention, the above-described hose burst check valve 50 is installed on the side of the discharge port or the discharge hose through which the operating oil is discharged. Even if the discharge hose is broken, the hydraulic oil discharged from the lifting cylinder 55 and through the orifice 54 to be gradually discharged so as to reduce or prevent the occurrence of various safety accidents due to abrupt descent of the working device.

6 shows another safety device. The safety device shown in Fig. 6 includes an emergency power switch 65 in the middle portion of a positive operation switch 60 installed on the outer surface of the rear end of the car, The emergency power switch 65 controls all the power supplied to the vehicle engine and the working device through the control of the open / close switch 7 provided on the main power line supplied from the battery 5 to the vehicle, As shown in FIG.

That is, when the rear worker performing the garbage collection and loading work from the rear of the vehicle is expected to have a safety accident due to a part of his / her body or body being stuck in the work device in which the rotary operation and the pressing operation are performed, If there is not enough room for the driver to notify the driver, the other operator cuts off the entire power source of the vehicle through operation of the emergency power switch provided on the outer surface of the rear end of the loader of the vehicle, .

Fig. 7 shows an embodiment of another safety device.

The safety device shown in FIG. 7 enables mutual communication between the driver in the driver's seat and the rear worker who is carrying out the garbage collection and loading work in the rear of the enemy, so that a safety accident can be prevented from being inadvertently caused by either side .

For this, in the embodiment shown in FIG. 7, speakers 31 and 32 and microphones 33 and 34 are provided on both sides of the driver's seat 10 and the loading box 30, So that it is possible to prevent a safety accident from occurring due to carelessness of either one.

That is, the sound inputted through the microphone 33 provided in the driver's seat 10 is outputted through the speaker 32 installed at the rear end of the loading box so that the operator working at the rear of the loading box can grasp the driver's condition, The operator's voice is outputted through the speaker 31 located in the driver's seat through the microphone 34 installed at the rear end of the loader and transmitted to the driver so that the driver can recognize the rearward state of the load- Be able to grasp work situation.

In addition, the driver or the rear worker can work while communicating the work instruction or the work contents to the other side so that one side can arbitrarily guess and prevent the inadvertent action to prevent the occurrence of the safety accident .

Of course, in place of the above-described speaker and microphone, a rear camera is installed in the rear of the loading box, and a monitor is installed in the driver's seat so that a driver can easily grasp the situation of the rear operation with the naked eye, thereby preventing a safety accident from occurring. Adoption is possible.

5: Battery 7: Open / close switch
10: driver's seat 15: alarm means
20: work device operation part 25: work device lift switch
30: Stacker 31,32: Speaker
33, 34: Microphone 37: Handle
38: Slip prevention means
40: hopper 42: working device falling sensor
45: Work machine lifting cylinder 46: Discharge hose
50: Hose burst check valve 51: Body
52: lifting rod 53: compression coil spring
54: Orifice 55: Disk
56: Through hole
60: positive operation switch 65: emergency power switch
70: boarding board 72:
74: spring 75: limit switch
100: Garbage collection vehicle

Claims (6)

A garbage collection vehicle configured to be able to control an operation of a work machine installed behind a loader and an elevating operation in accordance with a control command of a control unit through an operation of a work device operation unit installed in the vicinity of a driver's seat,
A lowering device for detecting a lowering of the working device in a process of lowering the working device in order to close the rear of the loaded or opened loading device through the operation of the working device operating portion, A work device descent sensor for detecting a descent of the workpiece and sending a signal to the control unit,
And a pneumatic operation switch is provided on the rear outer side of the loader so as to completely close the rear of the loader by lowering the work device from which the lowering of the worker has been stopped according to the detection of the work device lowering sensor. The garbage collection vehicle comprising the rear worker safety means. The method according to claim 1,
A floorboard of a foldable structure that is folded in a vertical direction or at an angle with respect to the ground plane is provided at a rear end of the loading box,
A boarding footstep folding / folding detecting sensor is provided on one side of the boarding board so as to output different signals according to the folding state of the boarding board, and whether or not the boarding passenger boarding board is checked on boarding board in accordance with the detection signal of the boarding board folding- And a warning means is provided around the driver's seat so as to provide a constant signal to the driver. 3. The method of claim 2,
Wherein at least one handle gripped by an occupant of the boarding platform is provided at an upper rear portion of the loading board on which the boarding board is installed,
The grip portion is provided with a drag preventing means for preventing the operator from slipping when gripping the operator,
Wherein the boarding foot is formed with a penetrating portion in a vertical direction so as to allow dust and foreign matter to be discharged, and a sliding barrier is formed on an upper surface thereof. 4. The method according to any one of claims 1 to 3,
A working device for controlling the lifting and lowering of the working device The discharge hose or the working oil discharge port through which the working oil of the lifting cylinder is discharged is provided with a hydraulic oil loss caused by the leakage of the working oil during the discharge hose failure to prevent the working device from diving due to its own weight And a hose burst check valve is further provided for the rear worker safety means. 5. The method of claim 4,
And an emergency power switch capable of temporarily shutting off all the power supplied to the vehicle engine and the work device by a rear worker is further provided on a rear outer side surface of the loading box. Collection vehicles. 5. The method of claim 4,
A microphone and a speaker capable of communicating with each other can be provided between a driver sitting in a driver's seat and a worker performing a task in the rear of the loader on both sides of the driver's seat and the loader of the vehicle to improve the safety of a rear worker Wherein the garbage collection vehicle is equipped with rear worker safety means.

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