JPH0941332A - Road mark based on single view drawing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance a visual confirmation ability by forming a road mark according to a single view drawing method which does not raise a road surface physically but uses a visual illusion so that a raised road surface may be visually confirmed in three dimensions. SOLUTION: Four types of sheet pieces in specified shaped are pigmented in different colors respectively so that the brightness of color may be changed into four stages, for example. These sheet pieces 1 are assembled and laid out in a 3D shape. When assembled, each sheet piece 1 is laid out at a positional relation which enables a differential brightness of color between each of the adjacent sheet pieces 1 to be expressed as a shadow. More specifically, just as if a ray of light is irradiated from one direction of a virtual cubic body drafted in a single view drawing 2, thereby producing a shade, the sheet pieces 1 are laid out so that the differential brightness of color of each surface in the 3D figure 2 may be expressed as a shade. Therefore, a road mark is visually confirmed as if it were raised in 3D shape. This construction makes it possible to enhance a visual confirmation ability and eliminate a hazard even if a car rides over the mark.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road marking by a three-dimensional projection which is made to be seen three-dimensionally by a pedestrian or a traveling vehicle.

[0002]

2. Description of the Related Art In order to ensure the safety of road traffic, various road signs are drawn on the road surface, and attention is given to those who pass through the road and the vehicles that are traveling by visually recognizing these road signs. It is made to evoke. Conventionally,
Since these various road markings are generally drawn with flat characters and figures, there is a surface that is not enough to call attention, especially for vehicles running at high speed, and is not visually recognized. Sometimes overlooked by mistake.

[0003]

Therefore, for example, for a vehicle traveling at a high speed, horizontal lines are drawn at equal intervals on the road surface to emphasize the driver's sense of speed and to deliberately reduce the speed. There are some places in the UK where zigzag white lines are drawn on both sides of the road near the pedestrian crossing to make the pedestrian crossing visible and slow down consciously. These road markings can be improved in visibility by its unique expression method, and although some effects can be expected, there is a risk that they are inadvertently overlooked because they are flat markings as before. .

[0004] As another method, a part of a road surface is raised to forcibly reduce the speed of a vehicle. This method not only allows the driver to visually recognize the excitement and slows down intentionally, but also forcibly reduces the speed. If the rider climbs on the raised part without knowing the noise, it may generate noise and may be dangerous. In addition, it is troublesome to raise a part of the road surface and construct the road.

Therefore, the present invention solves the above-mentioned problems,
Instead of physically raising the road surface, for example, in order to effectively and safely reduce the speed of vehicles etc. consciously,
It is an object of the present invention to provide a three-dimensional road marking with excellent visibility, which is made to be visually raised in a three-dimensional manner using an optical illusion.

[0006]

Means for Solving the Problems In order to achieve the above object, the present inventor has conducted intensive studies and, as a result, used a plurality of sheet pieces having different brightnesses, arranged the sheet pieces in a three-dimensional diagram, and furthermore, If road signs are arranged in a positional relationship such that the brightness difference between adjacent sheet pieces can be expressed as a shadow, the sheet pieces are arranged on a plane,
Since it is a three-dimensional figure shape having shading, it is visually recognized as a three-dimensionally raised road sign, and it is known that visibility is improved, and the present invention has been completed.

[0007] That is, in the road marking by the stereographic projection according to the present invention, at least a plurality of sheet pieces having different lightness are arranged in a three-dimensional figure shape, and the lightness difference between adjacent sheet pieces can be expressed as a shadow. It is characterized by being arranged in a relation.

[0008]

Next, an embodiment of the present invention will be specifically described with reference to the drawings. 1 is a plan view showing one embodiment of the present invention, FIG. 2 is a plan view showing each sheet piece used in FIG. 1, FIG. 3 is a plan view showing another embodiment of the present invention, FIG. 4 is a plan view showing each sheet piece used in FIG.

In the embodiment shown in FIG. 1, four types of sheet pieces 1 each having a predetermined shape as shown in FIG. 2 which are colored with different colors so as to change the brightness in four stages are arranged in a three-dimensional view, and The arrangement of the sheet pieces 1 is such that the lightness difference between adjacent sheet pieces 1 is arranged in a positional relationship that can be expressed as a shadow. Here, the positional relationship in which the lightness difference between adjacent sheet pieces 1 can be expressed as a shadow means that the three-dimensional figure 2 originally represents a three-dimensional body in a planar manner by an isometric drawing method, an inclined drawing method, or the like. If the lightness of each surface portion 3 is the same, but the hue is different, it is not something that cannot be visually recognized as a three-dimensional object when viewed consciously. The positional relationship is such that the lightness difference of each surface 3 of the three-dimensional figure 2 is arranged to be expressed as a shadow, as if a shadow was generated by irradiation from one direction.

That is, in FIG. 1, the left side 31 has a white (Munsell-based lightness of about 9) sheet piece 11, the top surface 32 has a yellow (lightness of about 7) sheet piece 12, and a front face 33.
The trapezoidal three-dimensional figure 2 is formed by arranging a red (lightness is about 5) sheet piece 13 and a brown (lightness is about 3) sheet piece 14 on the right side portion 34, respectively. Therefore, the brightness of each sheet piece 1 is highest in white, and decreases in the order of yellow, red, and brown. Therefore, the left side 31 is maximized, and the brightness decreases in the order of the top 32, the front 33, and the right 34. The three-dimensional figure 2 is arranged so that
Each of the lightness differences is visually recognized as a shadow by a shading method or the like, and the shadow is visually recognized as being denser in the order of the top surface portion 32, the front portion 33, and the right side portion 34. Irradiation is performed from the upper left front of the imaginary three-dimensional object raised in the shape, and the top surface part 32, the front part 33, and the right side part 34 appear darker in this order.
Further, the brightness difference of each sheet piece 1 is preferably set to about 2 or more in Munsell value as in the present embodiment, and as the brightness difference becomes smaller, it becomes more difficult to be visually recognized as a shadow.

A plurality of sheet pieces 1 having different lightnesses as described above
Is used, the sheet pieces 1 are arranged in a three-dimensional view, and the road signs are arranged in a positional relationship such that the brightness difference between each adjacent sheet piece 1 can be expressed as a shadow. Although each of the sheet pieces 1 is arranged in the figure, since it is a three-dimensional figure shape having shading, it is visually recognized as a three-dimensionally raised road sign, and visibility is improved. Also, simply by arranging the plurality of sheet pieces 1, this road marking can be easily created.
The construction is extremely easy, and furthermore, it looks only in a three-dimensional swelling, but actually does not swell, so that even if a vehicle or the like rides on this road sign, there is no danger.

The material of the sheet piece 1 may be a sheet material adhered to a road surface in a conventional road marking, for example, a hot-melt type made of a rosin-based resin or a petroleum resin, an epoxy resin or a polyester resin. A sheet material obtained by curing an acrylic compound is appropriately used, and a retroreflective material such as glass beads or the like, or a luminous agent is mixed. You may.

This sheet piece 1 is made of white, gray, black, etc.
It may have only a lightness difference and no hue, but if the plurality of sheet pieces 1 are colored with different hue as shown in FIG. 1, the difference of each surface portion 3 is more remarkable. And it becomes easy to be visually recognized three-dimensionally. Further, since the three-dimensional figure 2 of FIG. 1 is composed of four surface parts 3 including a left side part 31, a top part 32, a front part 33, and a right side part 34, the lightness of the sheet piece 1 also differs in four stages, and this three-dimensional figure Although the same number of sheet pieces 1 as the number of the face portions 3 of the figure 2 are used, even if the number of the sheet pieces 1 having different lightness in a stepwise manner are used in order to express the shadow more finely, the number of the face pieces 3 or more is used. Good. However, in general, the number of surface portions 3 of the three-dimensional figure 2 is 2
If the number of the sheet pieces 1 is different in two to four steps, most of them can be used for general purposes.

In FIG. 1, a plurality of three-dimensional figures 2 are formed in a horizontal row and are connected by a white connecting sheet piece 4 so as to indicate a stop line.
May not be required.

Next, the road marking of FIG. 3 shown as another embodiment uses three types of sheet pieces 1 of a predetermined shape as shown in FIG. 4, each of which is colored in three different hues. The left slope portion 35 has a white (with a Munsell brightness of about 9) sheet piece 15, the front face 36 has a yellow (with a brightness of about 7) sheet piece 16, and the right slope portion 37 has a blue (with a brightness of about 3). 3), a triangular three-dimensional figure 2 is formed. Accordingly, since the brightness of each sheet piece 1 is highest in white, and decreases in the order of yellow and blue, the left slope portion 35 is maximized, and the brightness is reduced in the order of the front portion 36 and the right slope portion 37. Since each of the brightness differences is visually recognized as a shadow, and the shadow is visually recognized as being darker in the order of the front portion 36 and the right slope portion 37,
Just as the light beam illuminates from the upper left front of the triangularly raised virtual solid, the front part 36 and the right slope part 37 appear to be darker in this order. In FIG. 3 also, a plurality of three-dimensional figures 2 are formed in a horizontal line, and are connected by white connecting sheet pieces 4 so as to indicate stop lines, but the connecting sheet pieces 4 may be omitted. .

The three-dimensional figure 2 formed by arranging the sheet pieces 1 may be other than a linear geometric figure as in the above-described embodiment. For example, curved characters such as "Tomare" are displayed in a three-dimensional figure. The three-dimensional figure 2 to be represented is not particularly limited.

[0017]

According to the road marking according to the three-dimensional projection according to the present invention, although each sheet piece is arranged on a plane, since the three-dimensional drawing has a shading, it is as if the road marking rises three-dimensionally. And the visibility is improved. Also, simply by arranging a plurality of sheet pieces, this road marking is easily created, construction is extremely easy, and it only looks three-dimensional
In fact, there is no danger, so even if a vehicle or the like rides on this road sign, there is no danger.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a plan view showing each sheet piece used in FIG. 1;

FIG. 3 is a plan view showing another embodiment of the present invention.

FIG. 4 is a plan view showing each sheet piece used in FIG. 3;

[Explanation of symbols]

1,11,12,13,14,15,16,17 Sheet piece 2 Solid figure 3 Surface part 31 Left side part 32 Top part 33 Front part 34 Right side part 35 Left slope part 36 Front part 37 Right slope part 4 Connecting sheet piece

Claims (3)

[Claims] 1. A method according to claim 1, wherein at least a plurality of sheet pieces having different lightness are arranged in a three-dimensional view, and furthermore, are arranged in a positional relationship such that a lightness difference between adjacent sheet pieces can be expressed as a shadow. Road marking by 3D projection. 2. The road marking according to claim 1, wherein the brightness of the plurality of sheet pieces differs in two to four steps. 3. The road marking according to claim 1, wherein each of the plurality of sheet pieces is colored with a different hue.