JPH0880449A - Backup alarm lamp device of self-traveling crusher for construction waste material - Google Patents

Abstract

PURPOSE: To light and flicker right and left backup lights alternately or simultaneously to facilitate visual confirmation by providing a means for detecting operation of a traveling lever to input a signal from the detecting means to a controller and connecting the controller to the right and left backup lights through a flasher unit. CONSTITUTION: On both the right and left sides of the rear parts of a main car body, backup lights 7R, 7L are arranged respectively, and the right and left backup lights 7R, 7L are electrically connected to a controller 13 through a flasher unit 14. When one of traveling levers 6R, 6L is operated from a neutral position in the backup direction, one of limit switches 11, 12 is operated, allowing an operating signal thereof to be inputted to the controller 13. When the controller 13 judges, base on the operating signal, that the operating signal is a backup signal for causing a crawler traveling body to retreat, the controller outputs a lighting and flickering command signal to the flasher unit 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backward warning light device for a self-propelled construction waste material crusher which performs a crushing process for recycling construction waste materials such as concrete waste and asphalt waste.

[0002]

2. Description of the Related Art FIG. 7 is a perspective view of a conventional hydraulic excavator disclosed in Japanese Utility Model Laid-Open No. 2-18482. In the hydraulic excavator shown in FIG. 7, the upper revolving structure 2 is connected to the upper part of the lower traveling structure 1o, the counterweight 3o is attached to the rear end of the upper revolving structure 2o, and the left and right end parts of the rear surface of the counterweight 3o. Rear lighting device 4o, 4
o is provided. When the upper revolving structure 2o is revolving, the rear lighting device is turned on to issue a revolving alarm.

[0003]

Many construction machines and work vehicles are equipped with a buzzer as a backward movement alarm device. However, the buzzer is hard to hear at a noisy work site, and conversely, at a quiet site at night, the buzzer noise enters the neighboring residential area as noise. There are also vehicles equipped with a back light similar to automobiles, but they were often difficult to see at the work site. An object of the present invention is to provide a backward warning light device that can solve the above problems.

[0004]

A self-propelled construction waste material crusher according to the present invention connects a main vehicle body to an upper portion of a crawler traveling body and collects construction waste materials such as concrete debris supplied to a hopper above the main vehicle body. A crusher inside the main body is used to crush it into fine particles, and a rear light for alarm is installed on the rear surface of the main body.The travel direction switching valve is moved to the reverse oil passage position by operating the travel lever. A self-propelled construction waste material crusher in which a traveling motor is rotated backward by switching, and means for detecting operation of a traveling lever for operating a traveling direction switching valve for controlling the traveling motor is provided. A signal from the detection means is input to the controller, and on the other hand, rear lights are arranged on both left and right sides of the rear surface of the main vehicle body. And La were constructed in electrical wiring through the flasher unit allowed to light flashing left and right backward light of. Alternatively, on each of the left and right sides of the rear surface of the main vehicle body, there are arranged rearward lights with lamps for displaying left turn backward and right turn backward arranged in parallel, and the left and right left turn reverse indicator lamps and the controller are connected to the left turn flasher. From the means for detecting the switching operation of the directional control valve for traveling, which is wired through the unit, and the left and right right turn backward display lamps and the controller are wired through the right turn flasher unit to form an alarm light circuit. The signal was input to the controller. Alternatively, each of the left and right traveling motors is provided with a pressure switch in the operating pressure circuit at the time of reverse rotation, and the signal from the pressure switch is input to the controller, and the controller judges based on the signal, and the warning light circuit The flashing unit for turning left and turning right now outputs a lighting blink command signal. Alternatively, a pressure switch is provided in each pilot secondary pressure derivation circuit of the reverse pilot valve in the traveling hydraulic remote control valve that operates the left and right traveling motors, and the signal from the pressure switch is input to the controller. Based on the above, the controller makes a determination and outputs a lighting blink command signal to the flasher unit for left turn and right turn of the warning light circuit.

[0005]

As a first embodiment of the present invention, means for detecting the operation of the traveling lever is provided, and a signal from the detecting means is input to the controller, and the controller and the left and right backward lights are combined into a flasher unit. In the backward warning light device connected via the above, when the traveling lever is operated, the operation is detected by the detecting means, and the signal from the detecting means is input to the controller. When the controller judges based on the above signal and it is judged that the signal is a backward signal for moving the crawler traveling body backward (including straight forward backward, left turn backward and right turn backward), the controller issues a lighting blink command to the flasher unit. Output a signal. Since the flasher unit is energized, the left and right backward lights turn on and blink alternately or simultaneously.

As a second embodiment of the present invention, means for detecting the operation of the traveling lever is provided, and a signal from the detecting means is input to the controller. For each right turn reverse display, the rear turn lights with the lamps for displaying the right turn backward are arranged side by side, and the left and right left turn backward display lamps and the controller are wired through the left turn flasher unit and the left and right right turn backward display. In a backward warning light device in which a lamp and a controller are wired via a right turn flasher unit to form a warning light circuit, when the traveling lever is operated, the operation is detected by a detection means, and a signal from the detection means is sent to the controller. Entered in. The controller judges based on the above signal,
When it is determined that the signal is a straight forward / backward signal that causes the crawler traveling body to go straight backward, the controller outputs a lighting / blinking command signal to the left turn and right turn flasher units. Since the left-turn and right-turn flasher units are energized, the left and right backward lights are alternately or simultaneously turned on and off. When the signal input to the controller is the left turn backward signal for moving the crawler traveling body backward to the left, the controller determines and outputs a lighting blink command signal to the left turn flasher unit. Since the left turn flasher unit is energized, the left turn reverse indicator lamps of the left and right reverse lights are alternately or simultaneously turned on and off. When the signal input to the controller is a right turn backward signal for turning the crawler traveling body right backward, the controller makes a determination and outputs a lighting blink command signal to the right turn flasher unit. Since the right turn flasher unit is energized, the right turn reverse display lamps of the left and right reverse lights are alternately or simultaneously turned on and off.

Further, in the third embodiment of the present invention, a pressure switch is provided in each of the operating pressure circuits at the time of reverse rotation of the left and right traveling motors, and a signal from the pressure switch is input to the controller. A warning light circuit (a warning light circuit having the same configuration as the warning light circuit in the second embodiment) is connected. Therefore, when the traveling lever is operated in the backward direction, the pressure in the operating pressure circuit during backward rotation of the traveling motor increases, and the pressure switch is switched. Since the switching actuation signal is input to the controller, it is possible to determine whether the signal is a straight ahead backward signal or a left turn or right turn backward signal. The command signal output from the controller to the left turn and right turn flasher units is the same as that in the second embodiment.

Further, in the fourth embodiment of the present invention, pressure switches are respectively provided in the pilot secondary pressure derivation circuits of the reverse pilot valves in the traveling hydraulic remote control valves for operating the left and right traveling motors, and signals from the pressure switches are provided. Is input to the controller, and the warning light circuit (the warning light circuit having the same configuration as the warning light circuit in the second embodiment) is connected to the controller. Therefore, when the traveling lever of the traveling hydraulic remote control valve is operated in the backward direction, the pilot secondary pressure is derived from the backward pilot valve. The pressure in the pilot secondary pressure derivation circuit rises and the pressure switch is switched. Since the switching actuation signal is input to the controller, it is possible to determine whether the signal is a straight ahead backward signal or a left turn or right turn backward signal.
The command signal output from the controller to the left turn and right turn flasher units is the same as that in the second embodiment.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a perspective view of a self-propelled construction waste material crusher 1 equipped with the backward warning light device of the present invention. In the figure,
2 is a crawler traveling body of the self-propelled construction waste material crusher 1, 3L,
3R is a left and right running motor (not shown in the figure for the right running motor 3R) for driving the locomotive running body 2 and 4 is a main body connected to the upper part of the crawler running body 2 (a structure in which the main body 4 does not perform a turning operation) 5 is a hopper provided on the upper front side of the main vehicle body 4, 6L, 6R
Is a pair of left and right traveling levers, and 7L and 7R are rearward lights (the rightward rearward lamp 7R is not visible in the figure) disposed on both left and right sides of the rear surface of the main body 4. In the self-propelled construction waste material crusher 1 shown in FIG. 1, a construction waste material such as concrete debris supplied to the hopper 5 is crushed into predetermined fine particles by a crusher (not shown) inside the main body 4. ing. FIG. 2 is a circuit diagram of the backward warning light device according to the first embodiment of the present invention. In the figure, 8L and 8R are left and right traveling direction switching valves, 9 and 10 are first and second pumps respectively, and 11 and 12 are operation of traveling levers 6L and 6R (that is, switching of traveling direction switching valves 8L and 8R). Limit switch which is one detection means for detecting the operation of
3 is a controller and 14 is a flasher unit.

Next, the construction and operation of the backward warning light device according to the first embodiment of the present invention will be described with reference to FIGS. In the present invention, limit switches 11 and 12 for detecting the operation of the travel levers 6L and 6R that operate the travel motors 3L and 3R (that is, the travel direction switching valves 8L and 8R) are provided, and signals from the limit switches 11 and 12 are provided. Controller 13
On the other hand, the rear lights 7L and 7R are respectively arranged on the left and right sides of the rear surface of the main body 4, and the left and right rear lights 7L and 7R and the controller 13 are electrically connected via the flasher unit 14. Then configured. When at least one of the traveling levers 6L and 6R is operated in the reverse direction from the neutral position, the limit switches 6L and 6L are operated.
Since any one of R operates, its operation signal is input to the controller 13. The controller 13 determines based on the above-mentioned operation signal, and the operation signal is the crawler traveling body 2
When it is determined that the signal is a reverse signal that causes the vehicle to move backward (including straight backward, left turn backward, right turn backward), the controller 13 outputs a lighting blink command signal to the flasher unit 14. Since the flasher unit 14 is energized, the left and right backward lights 7L and 7R are alternately or simultaneously turned on and off.

Next, FIG. 3 is a rear view of a self-propelled construction waste material crusher 1'equipped with a backward warning light device according to a second embodiment of the present invention. In the figure, the same reference numerals are given to those using the same constituent elements as the self-propelled construction waste material crusher shown in FIG. 4'is a main vehicle body connected to the upper portion of the crawler traveling body 2, 15L and 15R are retreat lights disposed on both left and right sides of the rear surface of the main vehicle body 4 ', and 16 and 17 are retreat lights 15 respectively.
L left turn backward display lamp, right turn backward display lamp, 18, 1
Reference numerals 9 are lamps for the left turn backward display and the right turn backward display, respectively, of the backward light 15R. FIG. 4 is a circuit diagram of a backward warning light device according to a second embodiment of the present invention. In the figure, the same components as those in the circuit shown in FIG. 2 are designated by the same reference numerals. Next, the configuration of the backward warning light device according to the second embodiment of the present invention will be described with reference to FIGS. In the present invention, limit switches 11 and 12 that detect the operation of the travel levers 6L and 6R that operate the travel motors 3L and 3R (that is, the travel direction switching valves 8L and 8R) are provided, and signals from the limit switches 11 and 12 are provided. The controller 1
3 on the other hand, on the other hand, on the left and right sides of the rear surface portion of the main body 4, a rearward light 15L in which a left turn backward display lamp 16 and a right turn backward display lamp 17 are arranged in parallel, a left turn backward display lamp 18 and a right turn A backward light 15R in which a backward display lamp 19 is provided in parallel is arranged, and the left and right leftward backward display lamps 16 are arranged.
And 18 and the controller 13 are wired via the left turn flasher unit 14L, and the right and left right turn backward display lamps 17 and 19 and the controller 13 are wired via the right turn flasher unit 14R.
Formed 0.

Next, the operation of the backward warning light device according to the second embodiment of the present invention will be described. When both traveling levers 6L and 6R are operated in the reverse direction, the limit switches 11 and 12 are moved.
Are activated together, the activation signal is the controller 1
Input to 3. The controller 13 determines that the operation signal is a straight forward / backward signal, and the left turn flasher unit 14
A lighting and blinking command signal is output to the L and right turn flasher unit 14R. Both flasher units 14
Since both L and 14R are energized, the left and right backward lights 15
L and 15R are alternately or simultaneously turned on and off. When only the traveling lever 6R is operated in the backward direction, the operation signal from the limit switch 12 is input to the controller 13. The controller 13 determines that the operation signal is a left turn backward signal, and outputs a lighting blink command signal to the left turn flasher unit 14L. Since the left turn flasher unit 14L is energized, the left and right backward lights 15L and 15R
The left turn backward display lamps 16 and 18 are alternately or simultaneously lit and blinked. On the contrary to the above, the traveling lever 6L
When only is operated in the reverse direction, the operation signal from the limit switch 11 is input to the controller 13. The controller 13 determines that the operation signal is a right turn backward signal,
A lighting blink command signal is output to the right turn flasher unit 14R. Since the right turn flasher unit 14R is energized, the right turn reverse display lamps 17 and 19 of the left and right reverse lights 15L and 15R are alternately or simultaneously turned on and off.

Next, FIG. 5 is a circuit diagram of a reverse warning light device according to a third embodiment of the present invention. In the figure, the same components as those in the circuit shown in FIG. 4 are designated by the same reference numerals. 21L and 21R are traveling motors 3L and 3
When R is reversely rotated, pressure switches are provided in the operating pressure circuits a and b, 22 and 23 are throttle portions, and 24 is a power source portion. Next, the construction and operation of the backward warning light device according to the third embodiment of the present invention will be described with reference to FIG. In the present invention, the left and right traveling motors 3L, 3R are operated by the operating pressure circuit a during reverse rotation.
b are provided with pressure switches 21L and 21R, respectively, and signals from the pressure switches 21L and 21R are input to the controller 13, and the controller 13 is provided with an alarm light circuit 20 (the alarm light circuit of the second embodiment shown in FIG. 4). Circuit having the same configuration as 20). Therefore, when the travel levers 6L and 6R are operated in the reverse direction, the pressures in the operating pressure circuits a and b during the reverse rotation of the travel motors 3L and 3R rise, and the pressure switches 21L and 21R are switched. Since the switching operation signal is input to the controller 13,
The controller 13 can determine whether the signal is a direct backward signal or a left turn or right turn backward signal. From the controller 13, the left turn flasher unit 1
The command signal output to the 4L right turn flasher unit 14R is the same as in the second embodiment.

Next, FIG. 6 is a circuit diagram of a backward warning light device according to a fourth embodiment of the present invention. In the figure, the same components as those in the circuit shown in FIG. 5 are designated by the same reference numerals. 25L and 25R are left and right traveling motors 3
L / 3R control pilot switching valve for traveling, 26L,
26R is a hydraulic remote control valve for left and right traveling, 27L, 27R
Are left and right traveling levers, 28L and 28R are traveling hydraulic remote control valves 26L and 26R, respectively, and a reverse pilot valve,
Reference numeral 29 indicates a pilot pressure hydraulic pressure source for discharging the pilot primary pressure, and reference numerals EE, ... The construction and operation of the backward warning light device according to the fourth embodiment of the present invention will be described with reference to FIG. In the present invention, the reverse pilot valve 28 in the traveling hydraulic remote control valves 26L and 26R is used.
The pilot secondary pressure derivation circuits c and d of L and 28R are provided with pressure switches 21L and 21R, respectively, and signals from the pressure switches 21L and 21R are input to the controller 13, and the alarm light circuit 20 is provided to the controller 13.
(Alarm light circuit having the same structure as the alarm light circuit 20 shown in FIGS. 4 and 5) is connected. Therefore, in the present invention,
Traveling lever 27 of hydraulic remote control valves 26L and 26R for traveling
When L and 27R are operated in the reverse direction, the secondary pilot pressure is derived from the reverse pilot valves 28L and 28R.
The pressure in the pilot secondary pressure derivation circuits c and d rises, and the pressure switches 21L and 21R are switched. Since the switching actuation signal is input to the controller 13, the controller 13 can determine whether the signal is a straight forward backward signal or a left turn or right turn backward signal. From the controller 13, the left turn flasher unit 14
The command signal output to the L and right turn flasher units 14R is the same as in the backward warning light device of the second embodiment.

[0015]

According to the present invention, the means for detecting the operation of the traveling lever are provided, and the rear lights are provided on both the left and right sides of the rear surface of the main vehicle body. In a backward warning light device electrically connected via a flasher unit for lighting and blinking the backward light, when the traveling lever is operated in the backward direction, the left and right backward lights are alternately or simultaneously turned on and blink. The blinking of the backward light can be easily visually confirmed by a person who is behind the self-propelled construction waste material crusher, so that it is possible to quickly evacuate from that position and ensure safety. Since this backward warning light device does not generate an alarm sound unlike a buzzer, it cannot be recognized because the alarm cannot be picked up, or noise pollution is not caused. In addition, on each of the left and right sides of the rear surface of the main vehicle body, there are arranged rearward lights with the lamps for displaying left turn backward and right turn backward arranged in parallel, and the left and right left turn backward indicator lamps and the controller are connected to the left turn flasher. In the backward warning light device, which is wired through the unit, and the left and right right turn backward display lamps and the controller are electrically wired through the right turn flasher unit,
When the travel lever is operated to go straight backward, the left and right reverse display lamps for left and right turns all blink. Further, when the traveling lever is operated to the left turn backward or the right turn backward, the left and right reverse turn indicator lamps for left turn and right turn turn on and off respectively. Therefore, by observing the above lighting and blinking, whether the self-propelled construction waste material crusher goes straight backward,
In addition, it is possible to identify and recognize whether to make a left turn backward or a right turn backward.

[Brief description of drawings]

FIG. 1 is a perspective view of a perspective view of a self-propelled construction waste material crusher equipped with a backward warning light device according to a first embodiment of the present invention.

FIG. 2 is a circuit diagram of the backward warning light device according to the first embodiment of the present invention.

FIG. 3 is a rear view of a self-propelled construction waste material crusher equipped with a backward warning light device according to a second embodiment of the present invention.

FIG. 4 is a circuit diagram of a backward warning light device according to a second embodiment of the present invention.

FIG. 5 is a circuit diagram of a backward warning light device according to a third embodiment of the present invention.

FIG. 6 is a circuit diagram of a backward warning light device according to a fourth embodiment of the present invention.

FIG. 7 is a perspective view of a conventional hydraulic excavator.

[Explanation of symbols]

 1, 1'Self-propelled construction waste material crusher 2 Crawler traveling body 3L, 3R traveling motor 4 Main vehicle body 6L, 6R, 27L, 27R traveling lever 7L, 7R, 15L, 15R backward light 11, 12 limit switch 13 controller 14, 14L, 14R Flasher unit 16, 18 Left turn backward display lamp 17, 19 Right turn backward display lamp 20 Warning light circuit 21L, 21R Pressure switch 26L, 26R Travel hydraulic remote control valve 28L, 28R Reverse pilot valve

Claims (4)

[Claims] 1. A main vehicle body is connected to an upper portion of a crawler traveling body, and construction waste such as concrete debris supplied to a hopper above the main vehicle body is crushed into predetermined fine particles by a crusher inside the main vehicle body. Also, a rear light for warning is installed on the rear surface of the main body, and the traveling motor is rotated backward by switching the traveling direction switching valve to the backward oil passage position by operating the traveling lever. A construction waste material crusher, which is provided with means for detecting an operation of a traveling lever for operating a traveling direction switching valve for controlling a traveling motor, and a signal from the detecting means is input to a controller, while the main A flasher unit that has reversing lights on the left and right sides of the rear surface of the vehicle body, and turns the left and right reversing lights and the controller on and off. A backward warning light device for a self-propelled construction waste material crusher, which is characterized in that it is electrically connected via a cable. 2. A main vehicle body is connected to an upper portion of a crawler traveling body, and construction waste such as concrete debris supplied to a hopper above the main vehicle body is crushed into predetermined fine particles by a crusher inside the main vehicle body. Also, a rear light for warning is installed on the rear surface of the main body, and the traveling motor is rotated backward by switching the traveling direction switching valve to the backward oil passage position by operating the traveling lever. A construction waste material crusher, which is provided with means for detecting an operation of a traveling lever for operating a traveling direction switching valve for controlling a traveling motor, and a signal from the detecting means is input to a controller, while the main On each of the left and right sides of the rear surface of the vehicle body, there are arranged the respective rearward lights with the lamps indicating the leftward turn and the rightward turn, respectively, arranged side by side. Of the self-propelled construction waste material crusher characterized in that the controller and the controller are electrically wired through the left turn flasher unit, and the right and left right turn backward display lamps and the controller are electrically wired through the right turn flasher unit. Reverse warning light device. 3. A main vehicle body is connected to an upper portion of the crawler traveling body, and construction waste such as concrete debris supplied to a hopper above the main vehicle body is crushed into predetermined fine particles by a crusher inside the main vehicle body. Also, a rear light for warning is installed on the rear surface of the main body, and the traveling motor is set to the backward oil passage position by operating the traveling lever to move the traveling motor to the backward road. In the construction waste crusher, pressure switches are provided in the operating pressure circuits for the reverse rotation of the left and right traveling motors, and the signals from the pressure switches are input to the controller. On each side, there is a set of reversing lights with lamps for displaying left turn retreat and right turn retreat arranged side by side. Retracting the self-propelled construction waste material crusher characterized in that the rollers are wired through the left turn flasher unit, and the right and left right turn backward display lamps and the controller are electrically wired through the right turn flasher unit. Warning light device. 4. A main vehicle body is connected to an upper portion of a crawler traveling body, and construction waste such as concrete debris supplied to a hopper on the upper portion of the main vehicle body is crushed into a predetermined fine grain by a crusher inside the main vehicle body. Also, a rear light for warning is installed on the rear surface of the main body, and the traveling motor is rotated backward by switching the traveling direction switching valve to the backward oil passage position by operating the traveling lever. -Type construction waste material crusher, equipped with a pressure switch in the pilot secondary pressure derivation circuit of the reverse pilot valve in the hydraulic remote control valve for traveling that operates the left and right traveling motors, and inputs the signal from the pressure switch to the controller On the other hand, on the left and right sides of the rear surface of the main body, lamps for displaying left turn backward and right turn backward are installed in parallel. Each of the left and right reverse turn indicator lamps and the controller are wired via the left turn flasher unit, and the right and left right turn reverse indicator lamps and the controller are connected via the right turn flasher unit. A backward warning light device for a self-propelled construction waste material crusher characterized by electrical wiring.