JPH0734414A - Road mark painting system - Google Patents

Abstract

PURPOSE:To reduce the number of workers required for road mark painting work, shorten work time, and increase safety. CONSTITUTION:A road mark painting system comprises a small-sized truck 1 capable of traveling a road mark painting system and a painting device 2 which is installed at the rear of the small-sized truck 1 for painting road surface. The painting device 2 is provided with paint spraying nozzles in series at right and left sides. Also each paint spraying nozzle can be opened and closed by an opening and closing device provided separately. Then each paint spraying nozzle is opened and closed according to the travel distance of the small-sized truck 1 to draw road marks on the road surface as patterns on matrix with the position of each paint spraying nozzle and movement distance of paint spraying nozzle by opening and closing each paint spraying nozzle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road display coating system which is preferably used for road road coating work in road construction work.

[0002]

2. Description of the Related Art Conventionally, road display application work for drawing characters and other patterns as road display on the road surface has been performed, for example, in the following procedure. First, the road on which the road is displayed is closed, and then the characters to be displayed are drafted on the road surface, and further the road surface is masked along the draft. After the above-mentioned preparations have been completed, the display paint carried by an automobile, for example, a small truck is supplied to a hand-applied applicator and masked by an operator (characters and patterns are cut out). The coating device is pushed onto the portion) and moved, and the coating material is discharged from the coating device to apply the coating material to the masked road surface. Finally, the masking is removed, the road closure is released, and the work is completed.

As another method of applying the road display, first, the road for displaying the road is closed, and then a sheet-like paint (cutting) formed in the shape of characters or other patterns to be displayed in advance. (Sheet) is aligned with the road surface, then the paint is heat-treated to be fixed on the road surface, and the road closure is released to finish the work.

[0004]

By the way, in the above-described conventional road marking application method, since the worker performs work having a plurality of steps on the road as described above, It is necessary to perform the work for a relatively long time, and it is necessary to perform the work by blocking the traffic of at least a part of the road.

Further, the conventional road marking application work is as follows.
Since the work is done by people on the road, there is a danger of traffic accidents, and sufficient caution is required to ensure safety. Therefore, in addition to the plurality of workers, at least one traffic control person who guides a vehicle on a road under traffic regulation is required, and a large number of people are required in addition to the plurality of workers. In addition, the roads were partially closed to carry out the work, resulting in traffic congestion, which had a great impact on the local community.

The present invention has been made in view of the above circumstances. An object of the present invention is to make it possible for a small number of workers to perform a road marking application work in a relatively short time. It is an object of the present invention to provide a road marking application system capable of avoiding a risk of a traffic accident caused by a worker working on a road.

[0007]

A road display coating system according to the present invention includes a coating device which is arranged in a row and has a plurality of paint discharge holes for discharging paint onto the road surface, and which is movable on the road surface. A paint supply unit for supplying paint to the paint discharge hole, an opening / closing device for opening / closing each of the plurality of paint discharge holes, and a moving distance detecting device for detecting a moving distance of the coating device,
Storage means for storing a road display pattern, and control of opening / closing of the paint discharge hole by the opening / closing device in accordance with the road display pattern stored in the storage means and the moving distance detected by the moving distance detecting device. The opening and closing control means is provided as a means for solving the above problems.

Further, in the road display coating system of the present invention, a speed detecting device for detecting a moving speed of the coating device, a discharge amount adjusting device for adjusting a discharge amount of the paint from the paint discharging hole, and the speed. It is preferable to include a discharge amount control means for controlling the discharge amount adjusting device so as to increase or decrease the discharge amount of the coating material according to the speed of the coating device detected by the detection device.

[0009]

According to the first aspect of the present invention, when the coating device is moved onto the road surface for displaying the road, the moving distance is detected by the moving distance detecting device. The opening / closing control means stores the road display pattern stored in the storage means as a matrix pattern of the arrangement positions of the paint discharge holes arranged in a line and the movement distance of each paint discharge hole due to the movement of the coating device. Based on the above, the opening / closing device for the paint discharge hole at a predetermined position is opened at a predetermined movement distance.
Therefore, the application device applies the paint to the position on the road surface corresponding to the pattern on the matrix, and the road display similar to the pattern is drawn on the road surface.

Further, according to the second aspect of the present invention, the moving speed of the coating device is detected by the speed detecting device, and the discharging amount control means discharges based on the detected increase or decrease of the moving speed. The amount adjusting device is controlled to increase or decrease the amount of paint discharged from the paint discharge hole.

That is, when the amount of paint discharged from the paint discharge hole is constant, when the moving speed of the coating device is slow, the amount of paint discharged per unit moving distance is large, and a thick paint is left on the road surface. When the moving speed is high, the amount of paint discharged per unit moving distance will be small and the paint will be applied thinly on the road surface, so keep the moving speed of the coating device constant. It becomes difficult to apply the paint to the road surface with a certain thickness, but as described above, by adjusting the discharge amount of the paint according to the moving speed of the coating device, the moving speed of the coating device can be adjusted. Even if the value fluctuates, the paint can be applied to the road surface with a constant thickness.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a small truck 1 on which the road display coating system of this embodiment is mounted. In this embodiment, the road display coating system is a small truck 1.
Is carried to a road on which the road should be displayed, and the coating operation is performed by traveling (moving) on the road. FIG. 2 is a block diagram showing the overall configuration of the road display coating system of this embodiment.

As shown in FIGS. 1 and 2, the road display coating system of this embodiment is a small truck 1 capable of running the road display coating system, and the small truck 1.
A coating device 2 mounted on the rear part of the vehicle for coating the road surface; a paint tank 3 mounted on the small truck 1 and serving as a paint feeding device for feeding the coating device 2; The basic configuration is a control device 4 (shown in FIG. 2) mounted on the small truck 1 and controlling the coating device 2.

The paint tank 3 is provided with a paint pump (not shown), and a flexible tube (shown in FIG. 1) 3a having flexibility and elasticity as shown by an arrow a (shown in FIG. 2). The coating material is supplied to the coating device 2 through the coating material. Further, the control device 4 receives the traveling speed and the traveling distance as shown by an arrow b from the traveling distance detecting device and the traveling speed detecting device (the position shown in FIG. 11, the speed sensor 9a) attached to the small truck 1. The control signal is output to the coating device 2 as shown by the arrow c. The small truck 1 is provided with a display plate (not shown) so as to display a warning indicating that the work is in progress behind the small truck 1 when performing the coating operation.

As shown in FIG. 3, the coating device 2 has n coating material discharge holes 2c (1) to 2c formed in a row on a bottom plate 2b at right angles to the traveling direction of the small truck 1 and horizontally.
a casing 2a in which c (n) is formed, and FIG.
As shown in (B), provided in each paint discharge hole 2c ...
An opening / closing device (only one is shown in FIGS. 4A and 4B) 5 for individually opening and closing each paint discharge hole 2c ...
As shown in (A), (B), and (C), a discharge amount adjusting device 6 for adjusting the discharge amount of the paint from the paint discharge holes 2c ... And the paint discharge holes 2c ... As shown in FIGS. From a mounting device 7 for mounting the casing 2a having the above to the small truck 1, and as shown in FIGS. 9 and 10, a vertical movement mechanism 8 for vertically moving the casing 2a and the mounting device 7 with respect to the small truck 1. It is configured. In order to make the drawing easier to see, the discharge amount adjusting device 6 is not shown in FIG. 4, and the vertical movement mechanism 8 is not shown in FIG. 7.

As shown in FIGS. 3 and 10, etc., the casing 2a is formed in a rectangular parallelepiped shape that is long in the left-right direction of the small truck 1, and as shown in FIG.
The casing 2a is divided into a front chamber 2e in which the paint is filled from the paint tank 3 through the tube 3a and a rear chamber 2f in which the opening / closing device 5 and the discharge amount adjusting device 6 are housed. ing. Then, on the front chamber 2e side of the bottom plate 2b, the paint discharge holes 2 are arranged in a line along the length direction of the casing 2a.
c ... is formed.

As shown in FIGS. 4A and 4B, the opening / closing device 5 has an L-shaped shutter 5a capable of opening and closing the paint discharge hole 2c by penetrating the partition wall 2d in the horizontal direction, and FIG. In FIG. 4, a coil spring 5b for urging the shutter 5a in the left direction (direction for closing the paint discharge hole 2c) and in the right direction (paint discharge in FIG. 4) against the urging force of the coil spring 5b via the shaft 5c for the shutter 5a. Direction to open hole 2c)
It is composed of a solenoid 5d that pulls in.

The solenoid 5d is adapted to pull in the shaft 5c when a control signal from the control device 4 is input, and the opening / closing device 5 is arranged as shown in FIG. 4 (B) when the control signal is input. The paint discharge hole 2c is opened in the above, and in other cases, the paint discharge hole 2c is kept closed as shown in FIG. 4 (A).

The discharge amount adjusting device 6 is shown in FIG.
(B) As shown in (C), a plate-shaped flow rate control valve 6a that can freely extend through the partition wall 2d in the paint passage 2g in the paint discharge hole 2c along the horizontal direction, and the flow rate control. A rack 6b provided on the upper surface of the rear portion of the valve 6a, a pinion 6c meshing with the rack 6b, and a motor 6d for rotating the pinion 6b based on a control signal from the control device 4 to project the flow control valve 6a. It will be.

When the traveling speed is high, the motor 6d is controlled by the control signal of the control device 4 based on the traveling speed detected by the position / speed sensor 9a (shown in FIG. 11). Counterclockwise (in Figure 5)
When the traveling speed is slow, the motor 6d is rotated clockwise (in FIG. 5) to rotate the flow control valve 6a.
To narrow the opening of the paint passage 2g.

In FIGS. 5A, 5B and 5C,
Each of the flow control valve 6a is extended to completely close the paint passage 2g, the flow control valve 6a is extended to partially close the paint passage 2g, and the flow control valve 6a is retracted to draw the paint passage 2g. The flow control valve 6a can be extended steplessly, and the opening of the flow passage 4f can be arbitrarily determined according to the traveling speed.

The discharge amount adjusting device 6 having the above structure is
In the road display coating system of this embodiment, when the coating material discharge amount from the coating material discharge hole 2c per unit time is constant, the speed of the coating device 2 is different or the speed is changed during the coating work. In addition, the amount of paint discharged per unit travel distance is different, which prevents the road display from being shaded (difference in the thickness of the applied paint).

That is, when the amount of coating material discharged per unit time is constant, the traveling speed of the coating device 2 must always be constant, but the traveling speed of the coating device 2 moved by the small truck 1 is Since it is almost impossible to keep it strictly constant, the discharge amount adjusting device 6 is provided in the road display coating system to change the discharge amount of the paint per unit time according to the speed.

In the road display coating system of this embodiment, as described above, the position / speed sensor 9a is used.
To control the speed of the coating device 2 (small truck 1)
To the discharge amount adjusting device 6 (motor 6d) based on this speed, and changing the opening of the paint passage 2g in the casing 2a of the coating device 2 to change the paint per unit time. By changing the discharge amount, the paint discharge amount per unit travel distance is kept constant even if the speed changes.

For example, as shown in the graph of FIG. 6, the traveling speed of the light truck 1 during work (work speed V0 to V1)
The opening of the paint passage 2g by the flow control valve 6a for
It is determined that the amount of paint discharged per unit traveling distance is constant, the opening of the flow rate control valve 6a is calculated for the position and the speed input from the speed sensor 9a, and the flow rate control valve 6a
The rotation angle of the motor 6d that becomes the opening of
A control signal corresponding to the rotation angle is output to d, and the opening degree of the flow control valve 6a is changed according to the speed.

As shown in FIGS. 7 and 8, the mounting device 7 has a casing 2a side base plate 7a having a concave shape in a front view in which a casing 2a is mounted on a lower portion of a rear surface side, and a small size as will be described later. Small truck 1 side base plate 7b mounted on the rear portion of the truck 1 so as to be vertically movable, and four left and right upper and lower link rods having parallel links which are pin-coupled at both ends to the base plate 7a and the base plate 7b. 7c ...
And coil springs 7f, 7f and dampers (up and down) that vertically connect the extension plate 7d extending from the base plate 7a toward the base plate 7b and the extension plate 7e extending from the base plate 7b toward the base plate 7a. 8) 7g, 7g and auxiliary wheels 7h, 7h attached to the base plate 7a.

Link bar 7c forming the parallel link ...
As a result, the casing 2a side base plate 7a can be moved up and down with respect to the small truck 1 side base plate 7b in a state where the casing 2a side base plate 7a and the small truck 1 side base plate 7b are parallel to each other. The coil springs 7f, 7f are configured to urge the casing 2a side base plate 7a downward with respect to the small truck 1 side base plate 7b, and the auxiliary wheels 7h, 7h rolling on the road surface are connected to the road surface. It is pressed against the bottom surface 2b of the casing 2a provided with the paint discharge holes 2c ... to keep a constant distance.

Further, the damper 15 suppresses the damping of the casing 2a side base plate 7a due to the unevenness of the road surface and the coil spring 7f when the small truck 1 side base plate 7b is moved upward as described later. , 7
The urging force of f serves as a stopper for preventing the casing side base plate 7a from being lowered more than necessary.

According to the mounting device 7 having the above-described structure, during the coating operation, the casing 2a of the coating device 2 is constantly pressed against the road surface by the spring coil 7f, and the damping is suppressed by the damper 7g. Therefore, the distance between the paint discharge holes 2c of the casing 2a and the road surface is always kept constant.

The vertical movement mechanism 8 is shown in FIGS. 9 and 10.
As shown in FIG. 5, a support plate 8a fixed to the rear surface of the small truck and having a concave shape when viewed from the front, and two rails 8b and 8b attached to the rear surface side of the support plate 8a so as to extend vertically are provided.
And the base plate 7b of the attachment device 7 on the light truck 1 side
, Which are attached to the front side of the rail and which are vertically movably fitted to the rails 8b and 8b, and the support plate 8a.
Of the hydraulic cylinders 8e, 8e whose lower ends are fixed to the projecting pieces 8d, 8d projecting to the front side, and the upper ends of the hydraulic cylinders 8e, 8f extending from the front surface of the base plate 7b. 8e, 8e piston rod 8g, 8g
It consists of and.

The hydraulic cylinder 8e is hydraulically actuated by a pump (not shown) to extend the piston rod 8g upward and move the small truck 1 side base plate 7b upward along the rails 8b and 8b. As a result, the mounting device 7 and the casing 2a are moved upward. Therefore, by the vertical movement mechanism 8, the mounting device 7 and the casing 2a are moved downward as shown in FIG. 9 (A) during the coating operation, and normally moved by the vertical movement mechanism 8 as shown in FIG. 9 (B). In addition to being able to move to and from the running state, it can be held in either one of the two states.

By the vertical movement mechanism 8 having the above structure,
During the coating operation, the paint discharge hole 2 of the casing 2a
c can be brought close to the road surface to a sufficient coating distance, and the casing 2a of the coating device 2 is moved upward when the light truck 1 travels the small truck 1 for transportation. Therefore, the casing 2a is prevented from being damaged or the travel of the small truck 1 is prevented from being hindered by the step or unevenness of the road surface. Further, since the casing 2a moves up and down by hydraulic pressure, it is not necessary for an operator to go down from the small truck 1 to move the casing 2a at the start and end of the coating operation, and the work is done by going down the small truck 1. This ensures that workers are not at risk of traffic accidents.

The block diagram of the control device 4 is shown in FIG.
As shown in FIG. 1, an arithmetic unit 4a, an input unit 4b including a keyboard (not shown), a display unit (display) 4c, a storage unit 4d, and an external signal input / output unit 4e.
It consists of and. The input device 4b is used for selecting a road display pattern to be applied by the applying device and storing it in the storage device 4
The new road display pattern is input to d. The display device 4c displays a road display to be applied,
It is for displaying the progress of the coating operation.

The storage device 4d stores a road display to be applied. The road display is, for example, as shown in FIG.
As shown the shape of a "medium", the running distance (X ₀ to X ₅₎ and the switchgear number n ₀ of assigned according to the position of the position (opening and closing device for the coating material discharge hole 2c ... (switchgear 5 ...) ˜n ₅ ) and stored as a pattern on a matrix.
That is, as shown in FIG. 13, at each traveling distance,
For each road display, it is stored whether the opening / closing devices 5 ... Are open (ON) or closed (OFF).

FIG. 12 shows a pattern as to whether the switchgear 5 ... At each position (n _{0 to} n ₅ ) is ON or OFF at each distance (X _{0 to} X ₅ ). ,
In the case of the display of the character "middle", the switchgear is turned on in the hatched portion A.

Further, FIG. 13 shows each traveling distance (X _{0 to} X ₅ ).
Is a graph showing whether the opening / closing devices 5 ... At each position (n _{0 to} n ₅ ) are turned on or turned off. From the top, the opening and closing from 0 (origin) to the left of n ₀ is performed. ON / OFF of the device, ON / OFF of the switchgear from n ₀ to n _{1 to} the left, O of the switchgear from n ₁ to n _{2 to} the left
N ・ OFF, ON / OFF switch from n ₂ to n _{3 to} the left
・ OFF, ON / OFF of n ₃ to n _{4 to} the left ・
OFF, ON · O switchgear from n ₄ to one left n ₅
It shows ON / OFF of FF and switchgear from n ₅ to n.

The external signal input / output device 4e is a well-known position / speed sensor 9 serving as a moving speed / moving distance detecting device.
It is connected to a, and the traveling speed and traveling distance of the coating device 2 (small truck 1) are input as signals. The external signal input / output device 4e is connected to each of the switching devices 5 (1) to 5 (n) and outputs an ON / OFF signal to each of the switching devices 5 (1) to 5 (n). It is supposed to do. Further, the external signal input / output device 4e is connected to the discharge amount adjusting device 6,
A control signal is output to the motor 6d of the discharge amount adjusting device 6.

Next, the method of use and the operation of the above road display coating system will be described. First, the arithmetic processing in the arithmetic unit 4a at the time of character drawing processing for drawing characters one by one using the road display coating system will be described with reference to the PAD diagram shown in FIG.

[P1] First, a road display pattern to be drawn on the road (font data = data indicating characters or the like from the open / closed state of each opening / closing device according to the traveling distance as described above) is selected and stored from the storage device 4d. Write to the internal table of the arithmetic unit 4a. Here, the "medium" font data is read.

[P2] The processes after [P3] are repeated until a predetermined distance to finish drawing one character is reached.
If the distance to finish drawing one character is reached, the character drawing process is ended. [P3] A signal is input from the distance and the speed sensor 9a, and the traveling distance x from the start of drawing is obtained. [P4] Switchgear number i is repeated from 1 to n, and [P4]
5] The following processing is performed. When it reaches n, return to [P2].

[P5] The opening / closing state (ON / OFF) of the opening / closing device number i at the traveling distance x is read from the internal table. [P6] Switchgear 5 with switchgear number i (solenoid 5
An open / close (ON / OFF) signal is output to d). After outputting, return to [P4].

Next, the arithmetic processing in the arithmetic unit 4a at the time of character string drawing processing for continuously drawing characters as a character string on the road surface will be described with reference to the PAD diagram shown in FIG. [P10] Clear the traveling distance x. [P11] The process of [P12] is repeated until the traveling distance x reaches a predetermined character drawing start position. When the traveling distance x reaches the character drawing start position, the process proceeds to [P13].

[P12] A signal is input from the distance / speed sensor 9a to update the traveling distance x. After updating, return to [P11]. [P13] The following processing is repeated from the last character of the character string to the first character of the character string. When the processing of the first character of the character string is completed, the character string drawing processing is ended. The character string to be drawn is determined in advance.

[P14] The traveling distance x is cleared. [P15] The above-mentioned character drawing processing from [P1] to [P6] is performed. After drawing one character, the process returns to [P13].

The road display is drawn by performing the arithmetic processing in the character drawing processing and the character string drawing processing as described above and outputting an open / close (ON / OFF) signal to each of the opening / closing devices 5 as the arithmetic processing result. When the small truck 1 with the coating device 2 lowered on the desired road surface is opened and closed, the opening / closing devices 5 ... of the paint discharge holes 2c ... Is discharged,
Characters will be drawn on the road. For example, in the case of drawing the character string "40 high middle" by the above processing procedure,
By driving the small truck 1 along the traveling direction of the automobile (the traveling direction such as left-hand traffic), "medium", "high", "4"
Road displays can be drawn in the order of "0".

Next, a method of drawing a road display on a road surface by using the road display coating system by the control method by the control device 4 as described above will be described. First, the small truck 1 moves the road display application system to the road where the road display should be drawn. At this time, the attachment device 7 of the coating device 2 and the casing 2a are moved upward by the vertical movement mechanism 8 so that the coating device 2 does not interfere with the traveling of the small truck 1.

On the road at the work site, a warning indicating that work is being performed is displayed toward the rear of the small truck 1. Storage device 4
The road display (characters, other patterns) to be drawn stored in the display device 4c of the control device 4 and the input device 4b.
Select by. Next, the distance from the current stop position of the small truck 1 to the start position for drawing the road display is input to the control device 4.

Then, the vertical movement mechanism 8 is operated to lower the casing 2a of the coating device 2 to a position where the coating operation can be performed (the position where the auxiliary wheel is in contact with the road surface), and the coating material from the coating material tank 3 to the coating device 2 is moved. Is supplied into the casing 2a.
Next, the small truck 1 is run at the working speed (the speed of V _{0 to} V ₁ in FIG. 6) along the road.

Based on the control method of the control device 4, a road display is drawn on the road surface from the coating device 2 moving at the working speed. When all the characters have been applied, the road display application device 3 is raised to the normal traveling position, the supply of paint is stopped, and the warning display during work behind the small truck 1 is turned off. Then, the small truck 1 moves to the next work place or returns to the storage place.

Characters drawn by the road display coating system of this embodiment are basically drawn as a pattern on a matrix, and therefore, as shown by reference numeral C in FIG. It will be jagged,
Although slightly different from "4" indicated by the symbol B drawn by the conventional road display application method, the degree of the jaggedness (smoothness of characters) is determined by the width of the paint ejection hole 2c. It is possible to draw smooth characters by narrowing the width of and increasing the number. However, when the number of paint discharge holes 2c is increased, the amount of character font data is increased, but this is not so large as to exceed the capacity of the storage device 4d or the processing capacity of the arithmetic device 4a.

As described above, according to the road display coating system of this embodiment, the road coating work can be automated, and the worker can display the road display on the small truck 1 after setting the control device 4. The application work can be performed simply by traveling on the road to be drawn. That is, it is not necessary for the worker to go down on the road and perform a plurality of steps over time.

Therefore, at least one worker can perform the road display application work. In addition, the road surface application work can be performed by a short time work such that the light truck 1 travels on the road at a work speed. Further, since the worker does not go down on the road, the work can be performed safely. Since the application work is performed while the small truck 1 is running, it is not always necessary to close the road, and the vehicles following the small truck 1 are relatively slow at a time when the traffic volume is relatively small. You can easily overtake the small truck 1 you are working on,
Road application work does not cause traffic congestion.

Further, according to the road display coating system of this embodiment, the road display can be freely produced, registered, and selected as a pattern on the matrix of the traveling distance and the position of each paint discharge hole 2c ... It is possible to easily draw even a figure. Further, according to the road display coating system of this embodiment, the casing 2a having the coating material discharge holes 2c of the coating device 2 can be vertically moved by the vertical movement mechanism 8 between the normal traveling position and the working position. In order to set or store the coating device 2 at the start and end of the work, the worker does not need to work because it is from a small truck, and the coating work can be performed more safely.

Further, since the vertical movement mechanism 8 moves the casing of the coating apparatus 2 up and down by hydraulic pressure, preparation and removal of coating work can be carried out quickly. Further, according to the road display coating system of this embodiment, the discharge amount adjusting device 6 can adjust the discharge amount of the coating material in accordance with the traveling speed of the coating device, so that the working speed of the coating device is slightly changed. Also,
Road marking can be finished to a certain thickness. Also, if you display a warning while working on the road display work,
Work can be performed even more safely.

In this embodiment, the pull type solenoid 5d is used as the actuator of the opening / closing device 5, but a push type solenoid, an actuator such as an air cylinder, a hydraulic cylinder, or a motor may be used. Further, the mechanism of the opening / closing device, the mechanism of a mounting device that presses the casing 2a of the coating device 2 against the road surface, the vertical movement mechanism that lifts the casing 2a of the coating device 2 when not working, the mechanism of the discharge amount adjusting device, and the like are also described above. It is not limited to the configuration. Further, although the small truck 1 is used as a means for running the coating device 2, the means for running the coating device 2 is not limited to the small truck 1, and
Other automobiles or vehicles designed for exclusive use may be used.

[0056]

As described above in detail, according to the road display coating system of the first aspect of the present invention, the road coating work can be automated, and the worker can set the opening / closing control device. After that, the coating operation can be performed by simply moving the coating device on the road on which the road display is to be drawn. That is, it is not necessary for the worker to perform a plurality of steps on the road over time.

Therefore, the coating work can be performed by one person, and the work time can be shortened without requiring a plurality of steps. Further, since the coating work is performed while the coating device is running, it is not always necessary to interrupt the traffic on the road, and the work is completed in a short time, so there is no risk of traffic congestion due to the coating work. Further, since the coating work can be performed by moving the coating device, the worker does not need to perform the coating work on the road as described above, and the safety of the coating work can be improved.

Further, each road display is stored in the storage device as a pattern on the matrix of the travel distance of the coating device and the arrangement position of the paint discharge holes arranged in a line, and the opening / closing control means also displays on the matrix. By controlling the switchgear based on the pattern, the road display is drawn.By changing the pattern on the matrix, you can easily create, register, and select complicated characters and figures. , Can be drawn on the road surface.

Further, according to the road display coating system of the second aspect, since the amount of coating material discharged from the coating material discharge hole can be changed according to the moving speed of the coating device, the moving speed of the coating device fluctuates. However, it is possible to apply a paint of a certain thickness to the road surface.

[Brief description of drawings]

FIG. 1 is a side view showing an overall configuration of a road display coating system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a schematic configuration of a road display coating system of the above embodiment.

FIG. 3 is a plan view showing a paint discharge hole provided in a bottom plate of a casing of a coating device of the road display coating system.

FIG. 4 is a cross-sectional view showing an opening / closing device for the paint discharge hole.

FIG. 5 is a cross-sectional view showing a discharge amount adjusting device of the coating device.

FIG. 6 is a graph showing the relationship between the traveling speed of the coating apparatus during operation and the opening of the flow rate control valve of the discharge rate adjusting apparatus.

FIG. 7 is a side view showing a mounting device of the coating device.

FIG. 8 is a front view showing the mounting device.

FIG. 9 is a side view showing a vertical movement mechanism of the coating apparatus.

FIG. 10 is a plan view showing the vertical movement mechanism.

FIG. 11 is a block diagram showing a basic configuration of a control device of the road display coating system.

FIG. 12 is a graph for explaining a road display pattern in the control device.

FIG. 13 is a graph for explaining a road display pattern in the control device.

FIG. 14 is a PAD diagram for explaining control of an opening / closing device by the control device.

FIG. 15 is a PAD diagram for explaining control of an opening / closing device by the control device.

FIG. 16 is a diagram illustrating a road display drawn by the road display coating system.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Small truck 2 Coating device 2c Paint discharge hole 3 Paint tank (paint supply part) 4 Control device 4a Arithmetic device (opening / closing control means, discharge amount control means) 4d Storage device (storage means) 5 Opening / closing device 6 Discharge amount adjusting device 9a Position and speed sensor (mileage detector, speed detector)

Claims (2)

[Claims] 1. A coating device having a plurality of paint discharge holes arranged in a line for discharging paint onto the road surface and movable on the road surface; and a paint supply unit for supplying paint to the paint discharge holes.
An opening / closing device for opening / closing each of the plurality of paint discharge holes,
A moving distance detecting device for detecting a moving distance of the coating device, a storage means for storing a road display pattern, a road display pattern stored in the storing means, and a moving distance detected by the moving distance detecting device. Correspondingly, an opening / closing control means for controlling the opening / closing of the paint discharge hole by the opening / closing device is provided. 2. A speed detecting device for detecting a moving speed of the coating device, a discharge amount adjusting device for adjusting a discharge amount of the paint from the paint discharging hole, and a coating device detected by the speed detecting device. A road display coating system, further comprising: a discharge amount control means for controlling the discharge amount adjusting device so as to increase or decrease the discharge amount of the paint according to the speed.