JP2004068459A - Wall surface cleaning vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wall surface cleaning vehicle which facilitates the grasping of an interval between the wall surface of a sound insulation wall 1 and the cleaning vehicle. <P>SOLUTION: The wall surface cleaning vehicle includes a vehicle 2 in which distance detecting sensors 31, 32 for detecting a distance between the sound insulation wall 1 and the vehicle 2 are installed. When the distance between the vehicle 2 and the sound insulation wall 1 becomes larger than a predetermined value, an alarm is issued by a lamp or sound, and therefore an operator can easily grasp the interval between the wall surface of the sound insulation wall 1 and the vehicle. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to, for example, a wall cleaning vehicle for cleaning a sound-transmitting plate on a motorway.
[0002]
[Prior art]
2. Description of the Related Art A sound insulation wall is provided on a side of an automobile road or the like to reduce noise generated by traveling of an automobile. This sound insulating wall is formed of a transparent light-transmitting plate in terms of lighting and the like. Since the sound insulation wall is contaminated by exhaust gas and dust of a car, it needs to be cleaned at any time. In general, the work of cleaning the sound insulation wall is performed by a human operator or a high-pressure cleaning device.
[0003]
That is, a washing operation is performed by stopping a high-altitude work vehicle, a water tank truck, or another work vehicle at the shoulder of a road, and supplying a high-pressure wash water to the contaminated sound insulation wall by a worker. In addition, an operator has been performing a washing operation using a variety of cleaning tools on an aerial work vehicle. In recent years, in order to reduce the burden on an operator, a wall cleaning vehicle has been put into practical use in which a high-speed cleaning water is jetted onto a sound insulating wall to perform a cleaning operation while the vehicle is running at a low speed.
[0004]
[Problems to be solved by the invention]
When cleaning a sound insulation wall with a wall cleaning vehicle, it is necessary to move the vehicle while keeping the position of the vehicle (the position of the cleaning device) optimal without the cleaning device being too far from or too close to the sound insulation wall. For this reason, when cleaning the wall surface with a wall cleaning vehicle, the driver must always drive while keeping an eye on the distance between the front and the wall surface, which imposes a great deal of labor and burden on the driver. Was the current situation.
[0005]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wall cleaning vehicle capable of easily ascertaining a distance from a wall.
[0006]
[Means for Solving the Problems]
The wall cleaning vehicle of the present invention for achieving the above object,
In a wall cleaning car that cleans the wall by the cleaning means while moving the vehicle along the wall,
It has a distance deriving means for deriving the distance to the wall surface,
When the distance between the cleaning means and the wall surface deviates from a predetermined distance by the distance deriving means, an alarm means is provided for causing the driver to recognize that the distance has deviated.
[0007]
And in the wall cleaning vehicle according to claim 1,
The washing means is a high-pressure water jetting means for jetting high-pressure water to a wall surface.
[0008]
In the wall cleaning vehicle according to claim 2,
The cleaning means is further provided with a rotary wiping body which contacts the wall surface and rotates with the movement of the vehicle.
[0009]
Further, in the wall cleaning car according to any one of claims 1 to 3,
The distance deriving means is a non-contact sensor provided in the vehicle and detecting a distance from a wall surface in a non-contact manner.
[0010]
In the wall cleaning vehicle according to claim 3,
The rotary wiping body is supported by a rotatable arm, and the distance deriving means is a sensor that detects a rotation state of the arm.
[0011]
Further, in the wall cleaning car according to any one of claims 1 to 5,
The alarm means is set to a different type of alarm when the distance between the cleaning means and the wall surface is shorter than a predetermined distance and when the distance is longer than a predetermined distance, and is set to a different type of alarm depending on the degree of deviation from the predetermined distance. It is characterized by the following.
[0012]
Further, in the wall cleaning vehicle according to any one of claims 1 to 6,
A feature is provided in which a function for correcting the derivation result by the distance deriving means according to the situation of the vehicle is provided.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
FIG. 1 is a plan view illustrating the entire configuration of a wall cleaning vehicle according to an embodiment of the present invention. FIG. 2 is a side view illustrating the entire configuration of the wall cleaning vehicle according to an embodiment of the present invention. FIG. 4 shows a concept of an example of an interval determination method, FIG. 4 shows a control block, and FIG. 5 shows an example of a display unit.
[0015]
The wall cleaning truck will be described with reference to FIGS.
[0016]
As shown in the figure, a vehicle 2 traveling along a sound insulating wall 1 as a wall surface is provided with a cleaning device 3 as a cleaning means for cleaning the sound insulating wall 1. The cleaning device 3 includes high-pressure washing water jetting means 11 as high-pressure water jetting means for spraying high-pressure water toward the sound insulating wall 1 and removing dirt by the water pressure. And a high-pressure water hose 14 such as a pump for supplying the water.
[0017]
The high-pressure washing water injection means 11 is configured by providing a plurality of high-pressure injection nozzles 23 on a pipe 24, and washing water is pressure-fed from a high-pressure hose 14 to the pipe 24. The high-pressure washing water is sprayed from the high-pressure spray nozzle 23 toward the sound insulating wall 1, whereby dirt is washed by water pressure.
[0018]
Further, the cleaning device 3 includes a plurality of cylindrical sponge wiping rolls 15 serving as a rotary wiping body that rotates with the movement of the vehicle 2 when the cylinder surface comes into contact with the sound insulating wall 1. The wiping roll 15 is rotatable around a central axis A in a vertical direction (vertical direction in FIG. 2) and is formed of a cylindrical sponge. The wiping rolls 15 are respectively supported on the columns 17 via the arms 16, and the wiping rolls 15 are simultaneously rotated toward the sound insulating wall 3 by the rotation of the respective arms 16 with respect to the columns 17.
[0019]
The wiping roll 15 is swingable with respect to the arm 16 around a horizontal axis B perpendicular to the central axis A (axial direction of the arm 16). By swinging about the horizontal axis B, the wall surface of the sound insulation wall 3 and the cylindrical surface of the wiping roll 15 are maintained in parallel.
[0020]
The wiping roll 15 is urged toward the sound insulating wall 1 during cleaning and is pressed against the sound insulating wall 1, and at the time of movement without performing cleaning work, the arm 16 is rotated to the opposite side of the sound insulating wall 3, and The pressing on the sound insulating wall 3 is released.
[0021]
Further, the cleaning device 3 is provided with cleaning water jetting means 18 for jetting cleaning water toward the wiping roll 15 when the wiping roll 15 is pressed against the sound insulating wall 3. A supply means 19 such as a pump for supplying water and a supply water hose 20 are provided.
[0022]
The cleaning water injection unit 18 is configured by providing a large number of cleaning water injection nozzles 21 on a pipe 22, and the cleaning water is pressure-fed from a supply hose 20 to the pipe 22. When the wiping roll is pressed against the sound insulating wall 1, cleaning water is sprayed toward the wiping roll.
[0023]
In the above-described wall cleaning vehicle, the arm 16 is simultaneously rotated and urged toward the sound insulating wall 1 to press the plurality of wiping rolls 15 against the sound insulating wall 1 with the same pressing force (predetermined pressing force). The high-pressure pump 13 drives the high-pressure hose 14 to supply cleaning water to the high-pressure injection nozzle 23, and the pump 19 drives the supply hose 20 to supply cleaning water to the cleaning water injection nozzle 21.
[0024]
In this state, when the vehicle 2 runs at a low speed along the sound insulating wall 1, high-pressure washing water is jetted from the high-pressure jet nozzle 23 toward the sound insulating wall 1, so that dirt is washed by water pressure. The dirt (oil-based fixing component and the like) that has not been washed by the jet of the high-pressure washing water is wiped off by the wiping roll 15 pressed against the sound insulating wall 1 rolling the sound insulating wall 1 while the washing water is jetted.
[0025]
Since the wiping roll 15 is formed of a cylindrical sponge, the sound insulating wall 1 is rolled to wipe the sound insulating wall 1, and the sponge is deformed to squeeze out the impregnated washing water. For this reason, dirty cleaning water does not accumulate on the wiping roll 15, and the cleaning water from the cleaning water injection nozzle 21 is constantly jetted to the wiping roll 15. Can be wiped.
[0026]
Therefore, the high-pressure washing water is jetted from the high-pressure jet nozzle 23 toward the sound insulating wall 3 to wash dirt by the water pressure, and the wiping roll 15 rolls the sound insulating wall 3 to wipe off the dirt. The sound insulating wall 1 can be cleaned without any damage and without the labor of the operator.
[0027]
In addition, the dirt (oil-based fixing component and the like) that has not been washed by the jet of the high-pressure washing water is wiped off by the wiping roll 15 pressed against the sound insulating wall 1 rolling the sound insulating wall 1 while the washing water is jetted. In addition, it is possible to reliably remove dirt from the sound insulating wall 1 as a light transmitting plate and maintain light transmission.
[0028]
In the above-described wall cleaning vehicle, if the distance between the sound insulating wall 1 and the vehicle 2 (cleaning device 3) is too short, diffusion of the high-pressure cleaning water from the high-pressure injection nozzle 23 becomes insufficient, and a desired range is cleaned. I can't. If the distance between the sound insulating wall 1 and the vehicle 2 (cleaning device 3) is too long, the water pressure of the high-pressure washing water from the high-pressure injection nozzle 23 becomes weak and the wiping roll 15 is insufficiently pressed against the sound insulating wall 1. Cleaning cannot be performed in a desired state.
[0029]
For this reason, the wall cleaning vehicle of this embodiment is provided with distance detection sensors 31 and 32 as distance deriving means for deriving (detecting) the distance from the sound insulating wall 1. The distance detection sensor 31 is provided near the driver's seat in front of the vehicle 1, and is configured by, for example, attaching an ultrasonic sensor as a non-contact sensor to the tip of a foldable arm. The distance detection sensor 32 is configured by attaching an ultrasonic sensor as a non-contact sensor to a portion of the cleaning device 3 behind the vehicle 1 (for example, a portion of the cleaning water injection unit 18).
[0030]
As the distance deriving means, it is also possible to detect the pressing state of the wiping roll 15, that is, the rotation angle of the arm 16, and to derive the distance to the sound insulating wall 1 based on the rotation angle of the arm 16 by calculation or the like. It is.
[0031]
When the distance between the washing water injection means 18 (vehicle 1) and the sound insulating wall 1 deviates from a predetermined distance by the distance detection sensors 31 and 32, alarm means is provided for causing the driver to recognize that the distance has deviated from the predetermined distance. . The determination of the distance between the washing water injection means 18 (vehicle 1) and the sound insulating wall 1 using the distance detection sensors 31, 32 will be described with reference to FIGS.
[0032]
In FIG. 3, the distance between the distance detection sensor 31 on the front side and the sound insulation wall 1 is a, the distance between the distance detection sensor 32 on the rear side and the sound insulation wall 1 is b, the distance between the front of the vehicle body and the sound insulation wall 1 is c1, The distance from the front of the vehicle body to the distance detection sensor 31 is x1, the distance between the distance detection sensor 31 and the distance detection sensor 32 in the vehicle front and back direction is x2, and the distance from the distance detection sensor 32 to the distance detection sensor 32 is x2. Assuming that the distance in the vehicle front-rear direction to the rear of the vehicle body is x3, the distance c1 and the distance c2 can be expressed by the following proportional expressions.
[0033]
The distance c1 ahead of the vehicle body is
x2: (ba) = x1: (a-c1)
Organize,
x1 (ba) = x2 (a-c1)
Therefore,
c1 = [-{(ba) x1} / x2] + a
It becomes.
[0034]
The distance c2 behind the vehicle is
x2: (ba) = x3: (c2-b)
Organize,
x3 (ba) = x2 (c2-b)
Therefore,
c2 = [{(ba) x3} / x2] + b
It becomes.
[0035]
A small value of the above-mentioned values of c1 and c2 is displayed in the driver's seat, and the driver is made to recognize whether or not the distance between the vehicle 2 and the sound insulating wall 1 is out of a predetermined distance.
[0036]
That is, as shown in FIG. 4, detection signals of the distance detection sensors 31 and 32 are input to the data processing device 33. The data processing device 33 performs the above-described calculation to obtain c1 and c2, and outputs the information to the display unit 35 as distance information.
[0037]
Further, a detection signal of the vehicle speed sensor 34 is input to the data processing device 33. The data processing device 33 outputs the vehicle speed information detected by the vehicle speed sensor 34 to the display means 35.
[0038]
Further, the data processing device 33 outputs an operation command to the alarm 36 when the distance between the vehicle 2 and the sound insulation wall 1 is out of the predetermined distance and the alarm 36 when the vehicle speed exceeds the predetermined vehicle speed.
[0039]
The information of the water pressure of the high-pressure washing water injection means 11 is input to the data processing device 33, and the detection signals of the distance detection sensors 31 and 32 are corrected by the information of the water pressure. The threshold value for determining the distance is increased so that a warning is issued on the away side, and when the water pressure is low, the threshold value for determining the distance is reduced and the warning is issued on the approaching side. It is also possible.
[0040]
For example, the alarm 36 can be configured to emit different sounds when the distance between the vehicle 2 and the sound insulating wall 1 is too short, too long, and when the vehicle speed is too fast. .
[0041]
The display means 35 will be described with reference to FIG. The display means 35 is provided near the driver's seat as a display meter including a lamp 37 for displaying the distance and a vehicle speed meter 38 for displaying the vehicle speed.
[0042]
The display means 35 is provided with, for example, five lamps 37a, 37b, 37c, 37d, and 37e from the near side to the far side in order to display the distance between the vehicle 2 and the sound insulation wall 1. When the calculated distance is within the range of the predetermined distance, the central lamp 37c is turned on, the lamps 37b and 37a are sequentially turned on as approaching from the predetermined distance, and the lamps 37d and 37e are turned on as going away from the predetermined distance. Lights sequentially.
[0043]
After the lamp 37a at the left end in the figure is turned on, an alarm of too close by sound is issued, and after the lamp 37e at the right end in the figure is turned on, an alarm by too much sound is issued. For example, an alarm sound with a different sound interval between too close and too far apart is emitted.
[0044]
That is, the alarm means is set to different types of alarms when the distance is shorter than the predetermined distance and when the distance is longer, and is set to different types depending on the degree of deviation from the predetermined distance.
[0045]
The display means 35 is provided with a vehicle speed meter 38 for displaying the vehicle speed in an analog state. In the vehicle speed meter 38, a zone where the speed is too fast is colored with, for example, red or the like, and a sound alarm is issued when the zone becomes colored.
[0046]
For this reason, when the distance between the vehicle 2 and the sound insulation wall 1 is apart from the predetermined distance, the driver can check the lighting of the lamp 37 or the alarm by the sound, and can communicate with the vehicle 2 even if the maintenance work such as visual observation is reduced. Maintaining the distance from the sound insulating wall 1 becomes easy.
[0047]
In the above-described wall cleaning vehicle, the distance detection sensors 31 and 32 are provided, and when the distance between the vehicle 2 and the sound insulating wall 1 is out of a predetermined distance, an alarm is issued by the lamp 37 or a sound. It is possible to provide a wall cleaning vehicle that can easily grasp the distance from the wall. Therefore, the driver can keep the distance between the sound insulating wall 1 and the vehicle 2 at a predetermined distance without paying great attention to maintaining the distance from the sound insulating wall 1 during cleaning.
[0048]
Therefore, even during cleaning, the driver can maintain the distance between the sound insulating wall 1 and the vehicle 2 at a predetermined distance even if the driver pays great attention to the front, and cleans the sound insulating wall 1 safely and accurately. It becomes possible.
[0049]
In the above-described embodiment, since the distance detection sensors are provided at two places before and after the vehicle 1, the end of the sound insulation wall 1 can be notified by detecting the interruption of the sound insulating wall 1 by the distance detection sensor 31 on the front side.
[0050]
Further, based on the detection conditions of the distance sensor 31 on the front side and the distance sensor 32 on the rear side, it is possible to guess the road condition (turning state or the like) ahead, and to predict the approaching or moving away from the road, the ramp 37. It is also possible to correct the lighting and alarm operation.
[0051]
Further, it is also possible to obtain the position information by GPS or the like, estimate the traveling route of the vehicle 2, and add correction according to the state of the road change to the actual detection information by the distance detection sensor. .
[0052]
The control of these corrections can be performed on the software side by the data processing device 33, or can be performed on the hardware side by mechanically moving the distance detection sensors 31 and 32 to change the detection origin itself.
[0053]
Note that at least one distance detection sensor may be provided, and three or more distance detection sensors may be provided.
[0054]
【The invention's effect】
The wall cleaning car of the present invention is a wall cleaning car that cleans a wall by a cleaning unit while moving the vehicle along the wall, and includes a distance deriving unit that derives a distance from the wall, and the distance deriving unit includes a cleaning unit. Since a warning means is provided for the driver to recognize when the distance from the wall surface deviates from the predetermined distance, the vehicle can be a wall cleaning vehicle capable of easily grasping the distance from the wall surface.
[Brief description of the drawings]
FIG. 1 is a plan view illustrating an entire configuration of a wall cleaning vehicle according to an embodiment of the present invention.
FIG. 2 is a side view showing the entire configuration of the wall cleaning vehicle according to the embodiment of the present invention.
FIG. 3 is a conceptual diagram illustrating an example of a distance determination technique.
FIG. 4 is a control block diagram.
FIG. 5 is an explanatory diagram illustrating an example of a display unit.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 sound insulation wall 2 vehicle 3 cleaning device 11 high-pressure washing water injection means 12 water supply tank 13 high-pressure feeding means 14 high-pressure hose 15 wiping roll 16 arm 17 support column 18 cleaning water injection means 19 feeding means 20 supply hose 21 cleaning water injection nozzle 22 Pipe 23 High-pressure injection nozzle 24 Pipe 31, 32 Distance detection sensor 33 Data processing device 34 Vehicle speed sensor 35 Display means 36 Alarm 37 Lamp 38 Meter

Claims (7)

In a wall cleaning car that cleans the wall by the cleaning means while moving the vehicle along the wall,
It has a distance deriving means for deriving the distance to the wall surface,
A wall cleaning vehicle, comprising: a warning unit for allowing a driver to recognize that the distance between the cleaning unit and the wall surface deviates from a predetermined distance by the distance deriving unit. The wall cleaning vehicle according to claim 1,
The cleaning means is a high-pressure water jetting means for jetting high-pressure water to a wall surface. The wall cleaning vehicle according to claim 2,
The cleaning means further comprises a rotary wiping body which contacts the wall surface and rotates with the movement of the vehicle. The wall cleaning vehicle according to any one of claims 1 to 3,
The distance cleaning means is a non-contact sensor provided in the vehicle and detecting a distance from the wall surface in a non-contact manner. The wall cleaning vehicle according to claim 3,
The rotary cleaning body is supported by a rotatable arm, and the distance deriving means is a sensor for detecting a rotation state of the arm. The wall cleaning vehicle according to any one of claims 1 to 5,
The alarm means is set to a different type of alarm when the distance between the cleaning means and the wall surface is shorter than a predetermined distance and when the distance is longer than a predetermined distance, and is set to a different type of alarm depending on the degree of deviation from the predetermined distance. A wall cleaning truck characterized by the following. The wall cleaning vehicle according to any one of claims 1 to 6,
A wall cleaning vehicle having a function of correcting the derivation result by the distance deriving means according to the condition of the vehicle.

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