JPH0231170B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for constructing road markings.

BACKGROUND OF THE INVENTION For traffic safety, various markings such as boundary markings, speed limit markings, crosswalk markings, and heading direction markings are installed on the road surface.

(Prior art) As a construction method for this type of road marking, a coating machine equipped with a mold having slit-shaped holes is used, and marking paint is discharged in a downward strip from the holes of the mold, and the coating is applied. A widely used method is to move a machine along a road surface in a predetermined direction and apply marking paint to the road surface in a predetermined shape.

(Problem to be Solved by the Invention) In this method, the mold is fixed to the coating machine, and the length of the slit-shaped hole in the mold is constant, so the marking paint always has a constant width. applied to the road surface. Therefore, when constructing boundary line markings such as center lines, the application is done with a fixed coating width, so it is easy to install a coating machine on the construction vehicle, automate the construction, and improve construction efficiency. be.

However, when constructing markings consisting of lines, letters, or figures of different widths, such as at crosswalks or intersections, molds with slit openings of different lengths are replaced each time. It is difficult to automate the application, and inefficient manual applicators are still used.

(Means for Solving the Problems) The present invention has been made in view of the current situation, and provides a mold for a coating machine with a sliding contact double layer having a slit-like hole and a triangular hole. Constructed in a cylindrical shape,
By rotating one cylindrical mold around the central axis and sliding the triangular opening across the slit opening, the coating width can be freely adjusted and the construction can be automated. It provides a construction method.

The present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 indicates a part of the body of a construction vehicle, and the construction vehicle 1 is equipped with a paint melting pot 11, a compressor 12, a generator 13, and the like.
Further, a robot 2 is installed on the construction vehicle 1, and an arm 21 of the robot 2 extends outside the vehicle. The robot 2 may be of any type, such as a rectangular coordinate type, a polar coordinate type, or an articulated type.

The robot 2 has a computer 22 and a controller 23.
Built-in. A coating machine 3 is attached to the arm 21 of the robot 2, and the coating machine 3 has a built-in discharge screw 31, and this discharge screw 31 is connected to a hydraulic motor 32. Hydraulic motor 32
is driven by a hydraulic pump 33. 34 is an oil hose.

Further, a mold 4 is attached to the coating machine 3 via an adapter 35. This mold 4 has a double cylindrical shape, and 41 is one circular mold that becomes the inner mold, 42 is the other cylindrical mold that is the outer mold, and one cylindrical mold 41 is the other cylindrical mold. 42, and is rotatable around the cylindrical central axis by a servo motor 5 and a gear 6.

Furthermore, as shown in FIG.
A triangular hole 43 is formed in the cylindrical shape 42, and a slit-like hole 44 is formed directly below the other cylindrical shape 42. The dimensions of the triangular hole 43 and the slit hole 44 are such that the hole 43 can slide across the hole 44.

In the above example, the entire coating machine 3 including the mold 4 is attached to the arm 21 of the robot 2, and the coating machine 3 and the paint melting pot 11 are connected by a flexible pipe 9 for supplying the paint. 3 is installed in the construction vehicle 1, only the mold part including the adapter 35 is attached to the arm 21 of the robot 2, and the adapter 35 of the mold part and the discharge screw built-in part of the applicator 3 are connected to a flexible tube. You can also connect with In this case, the servo motor 5 is attached to a part of the adapter 35.

Further, in the above example, a triangular hole 43 is formed in one cylindrical mold 41 serving as the inner mold, and a slit-shaped hole 44 is formed in the other cylindrical mold 42 serving as the outer mold. This triangular hole 43 and the slit-like hole 44 are formed oppositely, and the triangular hole is placed on the other cylindrical mold 42 that serves as the outer mold. It may also be rotated around the central axis of the cylindrical shape. In this case, the adapter 35 is attached to the lateral end of the inner cylindrical mold 41.

(Function) The method of the present invention, together with its function, will be explained as follows using the above-mentioned apparatus. First, the construction vehicle 1 is stopped near the road surface 8 to be constructed.
Next, information on the coating procedure is input into an external memory such as a magnetic tape or a floppy disk, and the information on the coating procedure is input from this external memory into the computer 22 of the robot 2.

Based on signals from the computer 22, the controller 23 controls the operation of the arm 21 of the robot 2 and the applicator 3.
The rotation of the discharge screw 31 and one cylindrical mold 41 of the mold 4 are controlled. That is, the arm 21 of the robot 2 moves the entire coating machine 3 or the mold part along the road surface from a predetermined work base as instructed by the computer 22 by the operation of various actuators. During this movement, coating machine 3
The discharge screw rotates at the number of rotations instructed by the computer 22 by the operation of a hydraulic motor, and discharges the marking paint in a downward band form from the slit-like hole 44 through the triangular hole 43 of the mold 4. let

At this time, one cylindrical mold 41 of the mold is rotated in the forward or reverse direction around the central axis of the cylindrical mold by an angle specified by the computer 22 by the operation of the servo motor 5. Then, the triangular hole 43 of one cylindrical mold 41 slides across the slit-shaped hole 44 of the other cylindrical mold 42, thereby adjusting the application width to a predetermined width and applying the marking paint 7 to the road surface in a predetermined manner. It is applied in the shape of In Figure 1, mold 4
The coating machine 3 including the drawing machine 3 moves in a direction perpendicular to the plane of the paper, and the marking paint 7 is applied in a strip shape in the direction perpendicular to the plane of the paper.

In FIG. 3, (A) is a case in which one of the cylindrical molds 41 rotates in the positive direction, and the long diameter portion of the triangular hole 43 intersects with the slit-shaped hole 44 of the mold 4. Therefore, the coating width A becomes wider. In addition, in FIG. 3 (B), one of the cylindrical molds 41 is rotated in the opposite direction, and the relatively short diameter portion of the triangular hole 43 intersects with the slit-shaped hole 44 of the mold 4. In this case, the coating width B becomes narrower. Through this action, the coating width can be freely adjusted. However, if the coating width changes and the coating thickness changes, in this case, by controlling the rotation of the discharge screw 31, the discharge amount is adjusted and the coating is performed. The thickness can be kept constant.

(Effects of the Invention) As described above, according to the method of the present invention, the mold of the coating machine is structured into a sliding double cylindrical type having a slit-shaped hole and a triangular hole, and the mold has a triangular hole. By rotating one cylindrical mold around the central axis and sliding the triangular hole across the slit-like hole, the width of the marking paint applied can be freely adjusted. Markings consisting of lines, letters, and figures with different application widths can be applied to road surfaces using a single mold, without having to replace them with molds of different lengths.

Therefore, it is easy to automate the construction. A robot is installed on the construction vehicle, and the entire coating machine or the mold part is attached to the arm of the robot. Under computer program control, markings of various shapes can be automatically applied. It has the advantage of being able to significantly improve construction efficiency.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the method of the present invention, FIG. 2 is a partially cutaway perspective view showing the hole opening of the mold in FIG. 1, and FIG. 3 is a cross-sectional view of the hole opening of the mold. FIG. 3 is an explanatory diagram showing the relationship between the state and the coating width. 1... Construction vehicle, 2... Robot, 21... Robot arm, 22... Computer, 23...
...Controller, 3...Applicator, 31...Discharge screw, 4...Mold, 41...One cylindrical mold, 42...
...The other cylindrical shape, 43...Triangular hole opening, 44
...Slit-shaped hole, 7... Marking paint, 8...
road surface.

Claims (1)

[Claims] 1. Using a coating machine with a built-in discharge screw attached to a mold, marking paint is discharged in a downward strip from the hole of the mold, and the entire coating machine or a part of the mold is applied along the road surface. A method for applying marking paint to a road surface by moving the mold, the mold having a double cylindrical shape, one cylindrical mold slidingly contacting the other cylindrical mold so as to be rotatable around a central axis, A triangular hole is formed in one cylindrical mold, and a slit-shaped hole is formed in the other cylindrical mold, and by rotating one cylindrical mold around the central axis, A road marking construction method characterized by adjusting the coating width by crossing and sliding triangular holes. 2 Install the robot on the construction vehicle, attach the entire coating machine or the mold part to the arm of the robot, input the information on the coating work procedure into the external memory, and input the information from this external memory into the robot's computer. The road marking construction method according to claim 1, wherein the operation of the arm of the robot, the rotation of the discharge screw of the coating machine, and the rotation of one cylindrical mold of the mold are controlled by signals from a computer. .