JPH0221639B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides road center lines, crosswalks,
This relates to road marking materials such as direction lines.

Conventional road marking materials of this type include melting type, hot paint type, (cold) painting type, sheet pasting type, tack type, and embedded type. , the hot paint method is the mainstream.

This is because it has the visibility, slip resistance, and appropriate durability required for road marking materials.

At present, other methods are also being used that take advantage of their respective characteristics.

However, the melting method and hot paint method require construction vehicles and construction crosspieces, which makes it very difficult to work in narrow spaces.
At the same time, it is dangerous because it uses fire, and workers must be extremely careful when working.

The (cold) paint method is suitable for local marking because it uses rollers, brushes, etc., but the amount of work required is not comparable to that of the melting method.

In addition, it takes time for the paint to dry, and it is difficult to expect vehicles to pass through the area immediately.

In the sheet type, the sheet is placed at the construction site and heated, and a layer of adhesive is applied to the back of the sheet.

However, since the former uses a burner etc. to apply the paste, the process is as dangerous as the melting method.
In addition, since the latter is attached using an adhesive, the work is easy, there is little danger, and the visibility is equivalent to that of the meltable adhesive, but the cost is currently high.

Regarding studs, those with protrusions at crosswalks are dangerous and make a lot of noise due to the vibrations of cars.
Recessed tires have been used in some areas as a measure against spikes and chains in snowy areas, but they are very expensive and have not been as effective.

In addition, if the above-mentioned marking materials (kiln melting type, paint type, sheet type, etc.) are flat after installation, their reflectivity decreases not only during snowfall but also when the road surface is wet, making it difficult for cars etc. The disadvantage was that it was very difficult for the driver to see.

The present invention has been made in view of the above circumstances, and has low vibration to automobiles, etc., good reflectivity even at night and in rainy weather, and good reflectivity even after long-term use and wear. Moreover, it was made with the aim of obtaining a road marking material that can be easily pasted on roads, and a part of the glass beads are exposed from the surface of the sheet base material mixed with glass beads, and the glass beads are partially exposed from the surface of the sheet base material mixed with glass beads. It is characterized in that adhesive layers are laminated and the surface of the sheet base material has a corrugated cross section.

The present invention will be described below based on an embodiment shown in the drawings.

FIG. 1 is a perspective view of a road marking material according to an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a partially enlarged schematic diagram of the example. FIG. 4 is an explanatory diagram of glass beads reflecting light from a headlight of an automobile or the like.

Reference numeral 1 denotes a road marking material, which is formed by sequentially laminating a sheet base material 2, a special adhesive layer 3, and a separator 4.

The sheet base material 2 is made by uniformly mixing a thermoplastic elastomer, a petroleum-based synthetic resin, a coloring pigment, a filler such as calcium carbonate, and glass beads 5 by heating to a high temperature, as shown in FIGS. 1 and 2. As shown in the figure, it has a wavy portion 6 having a corrugated cross section on its surface.

The above-mentioned wavy portion 6 is formed smoothly and conforms to the shape of the tire of an actual vehicle, etc., so that vibrations generated when a vehicle passes by has little effect on the driver and is safe. has been done.

That is, in the case of this embodiment, as shown in FIG. 1, the distance L from one valley to the next valley and the distance M from one peak to the next peak of the road marking material 1 are approximately
The thickness S of the thinnest part of the road marking material 1 is about 1.5 mm, and the thickness T of the thickest part is about 3 mm.

The width W of the road marking material 1 is approximately 15 cm.

Thus, the wavy portion 6 allows rainwater to flow into the concave valley portion during or after rainy weather, and can effectively remove rainwater from the raised mountain portion.

Further, as shown in FIG. 3, a portion of the glass beads 5 mixed in the sheet base material 2 are exposed on the surface of the sheet base material 2.

The special adhesive layer 3 is made of an adhesive that can be attached to conventionally used asphalt roads and concrete roads, and is
It is laminated on the back side of the .

The separator 4 is made by applying silicone or the like to the surface of a release mount made of paper or the like, and a temporary adhesive is applied to the other surface of the special adhesive layer 3 opposite to the surface in contact with the sheet base material 2. has been done.

Hereinafter, the actual usage method of the road marking material 1 according to the present invention will be explained.

First, while peeling off the separator 4 of the road marking material 1, the sheet base material 2 having the special adhesive layer 3 on the back side is pasted onto the road surface from one end.

In this case, the sheet base material 2 starts to be pasted in consideration of the pasting position in advance.

Further, in this case, the sheet base material 2 is pasted without being pulled.

When the sheet base material 2 of a piece of road marking material 1 has been pasted, if the surface of the sheet base material 2 is pressed with a heavy roller or the like, the adhesion to the road will be better.

The sheet base material 2 of the road marking material 1 has a corrugated cross-sectional shape and has glass beads 5 on its surface.
Since a portion of the glass bead 5 is exposed, there is less vibration in the vehicle, and as shown in FIG. The road marking material 1 can be clearly displayed, and during or after rainy weather, rainwater or the like can flow into the concave portions of the corrugations of the road marking material 1 to drain the rainwater from the raised portions of the corrugations. Since it is removed well, the raised part of the waveform can suitably reflect light from automobile headlights, etc., improving visibility in rainy weather, etc.
In addition, its reflectivity is good even at night, and even if the glass beads 5 exposed from the sheet base material 2 come off, other glass beads 5 mixed in the sheet base material 2 will be removed. When exposed, the glass beads 5 reflect light from automobile headlights, etc., and clearly display the road marking material 1, so that the road marking material 1 with good reflectivity can be obtained even when worn.

Furthermore, since the special adhesive layer 3 is laminated on the back surface of the sheet base material 2, it is easy to attach it to the road.

The present invention is not limited to the above embodiments, and for example, the sheet base material 2 and the separator 4 may be made of different materials.

Since the present invention is configured as described above, it causes less vibration to automobiles, etc., has good reflectivity at night or on rainy days, and has good reflectivity even when used for a long period of time.
Moreover, a road marking material that can be easily applied to roads can be obtained.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a road marking material according to an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a partially enlarged schematic diagram of the example. FIG. 4 is an explanatory diagram of glass beads reflecting light from a headlight of an automobile or the like. 1... Road marking material, 2... Sheet base material, 3... Special adhesive layer, 4... Separator, 5... Glass beads,
6... Wavy part, L... Distance from one valley to the next valley, M
...Distance from one peak to the next, S, T...Thickness, W...
width.

Claims (1)

[Scope of Claims] 1. A road marking material 1 comprising a sheet base material 2, an adhesive layer 3, and glass beads 5, wherein the glass beads 5 are mixed in the sheet base material 2 and partially is exposed from the surface, the sheet base material 2 has a corrugated cross section on the surface, and the adhesive layer 3 is coated on the back surface.