JP2004293241A - Installation plate in road central traffic strip, for interrupting illumination of opposed vehicle and recognizing traffic strip at night - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an installation plate in a medial strip, which not only interrupts illumination of an opposed vehicle but also exerts a function of facilitating recognition of the central traffic strip, at the time of traveling on a road at night, and exhibits an excellent appearance. <P>SOLUTION: The installation plate is set in the medial strip, for interrupting the illumination of the opposed vehicle, and for facilitating the recognition of the central traffic strip at the time of traveling on the road at night. The installation plate is an assembly including a pair of plate members formed of a transparent plastic molding, which are connected together at their peripheral edges to define a hollow portion therein. Each plate member has a rugged area formed in an inner surface facing the hollow interior of the assembly, and each inner surface has a coated layer of a light accumulating material at least at an edge thereof. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an installation plate installed at a predetermined interval on a highway or a general road having a median strip at a predetermined interval. In particular, the present invention relates to a mounting plate that can block the lighting of oncoming vehicles and that facilitates identification of the median strip during night driving.
[0002]
[Prior art]
In the face-to-face traffic of a car, the lighting of the oncoming car is often seen at night, which hinders driving. In consideration of this, various types of barriers are provided in the median strip on the expressway.
[0003]
[Problems to be solved by the invention]
Conventionally employed barriers are only for the purpose of shading, have limited functions, and cannot be said to have excellent aesthetics. The present invention not only cuts off the lighting of oncoming vehicles, but also has a function of facilitating the identification of the median strip when driving at night, and furthermore, an installation plate for the road median strip that can exhibit an excellent aesthetic appearance. The task is to provide.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides an installation installed in a road median strip to cut off the lighting of oncoming vehicles in the road median strip and to facilitate identification of the median strip when driving at night. Provide a board. The mounting plate includes a pair of plate members formed of a molded article of a transparent plastic material, the pair of plate members being joined together at peripheral edges to form an integral assembly having a hollow interior. Each of the pair of plate members has irregularities formed on an inner surface facing the hollow interior of the assembly, and has a coating layer of a phosphorescent material on at least an edge of the inner surface.
[0005]
According to one embodiment of the present invention, each of the pair of plate members has a flat central region, and the inner surface of the central region is a rough surface with fine irregularities, and a peripheral portion outside the central region. The region is an arc-shaped horizontal cross section, and a large number of pyramid-shaped protrusions are formed on the entire inner surface to form the above-described unevenness.
[0006]
In a typical embodiment of the present invention, the mounting plate is 600 mm to 700 mm in height, 400 mm to 450 mm in width, and is installed in the median of the road via a support so that the height is 1400 mm to 1500 mm. . The installation interval may be 2 to 5 m. Acrylic or polycarbonate is suitable as the plastic material constituting the plate member, but other transparent plastic materials can also be used. The plastic material may be colorless or colored.
[0007]
The installation board of the present invention, when installed at a predetermined interval in the median strip of the road, scatters nighttime illumination of vehicles traveling in the opposite lane by unevenness formed on the inner surface of the board member constituting the installation board. . Therefore, driving of the vehicle is not hindered by the lighting of the oncoming vehicle, and driving safety is improved. In addition, since the coating layer of the luminous material is formed at least on the edge of the inner surface of the plate member, the edge of the installation plate shines at night to help identify the position of the median strip. When the coating layer of the luminous material is formed only on the edge of the inner surface of the plate member, the brightness of the mounting plate is lower than in a case where the coating layer of the luminous material is formed over a wider area, for example, the entire inner surface. Does not get in the way. For this reason, it is preferable to form the coating layer of the phosphorescent material only on the edge of the inner surface of the plate member. However, the present invention is not limited to forming the coating layer of the phosphorescent material only on the edge. Absent.
[0008]
It is preferable that the installation plate is arranged such that the center plane of the plate assembly is inclined by 10 ° to 20 ° from a position perpendicular to the length direction of the road median strip. With this arrangement, it is possible to reduce the wind pressure applied to the installation plate when passing through the vehicle. The effect is the same regardless of whether the direction of the inclination is left or right.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
[0010]
FIG. 1 shows a state in which installation plates 1 according to one embodiment of the present invention are installed at predetermined intervals, for example, at intervals of 5 to 7 m, along a median strip 2 of a road. The installation plate 1 is installed so that its surface is substantially perpendicular to the length direction of the median strip 2.
[0011]
FIG. 2 is a front view showing the entire installation plate 1. The installation plate 1 includes a plate assembly 3 and a support 4. The plate assembly 3 includes a pair of plate members 5 and 6 as shown in FIG. 4 which is a cross section taken along line AA in FIG. Each of these plate members 5, 6 is formed by molding a transparent plastic material such as acrylic or polycarbonate, and has a substantially flat central region 7 as shown in FIGS. It has a peripheral area 8 and an edge 9. The peripheral region 8 has an arcuate horizontal cross-sectional shape as shown in FIG. The pair of plate members 5, 6 are joined together at an edge 9 to form an assembly having a hollow interior 10. As shown at the left end of FIG. 4A, a boss 11 having a hole 13 for screw insertion is formed at the edge 8 of the plate member 5, and the boss 11 is formed at the edge 9 of the plate member 6. A screw receiving portion 12 is formed at a position corresponding to 11. The two plate members 5 and 6 are connected by screwing a set screw 14 into the screw receiving portion 12 of the plate member 6 through a hole 13 formed in the boss 11 of the plate member 5. The set screws 14 are attached at a plurality of locations at appropriate intervals along the edge 9 as shown in FIG.
[0012]
With reference to FIGS. 3 and 5, the inner surface of the edge 9 of the plate member 5, 6 facing the hollow interior is provided with a groove transversely to the longitudinal direction of the edge 9 and over the entire edge 9. The protrusions and protrusions 15 are formed alternately to form irregularities. Then, a coating layer 17 of a phosphorescent material is formed over the entire surface of the groove 15 and the ridge 16. Further, as can be seen from FIG. 4A, the inner surface of the central region 7 having a flat shape has a rough surface with fine irregularities. Further, on the inner surface of the peripheral region 8 of the plate members 5 and 6, as shown in a partially enlarged view in FIG. In FIG. 6, one hexagonal pyramid 18 is indicated by a thick line. In FIG. 4A, P is a center plane of the plate assembly 3.
[0013]
FIG. 7 is a bottom view showing the support 4 partially cut away, and the support 4 is also formed in a hollow structure made of a plastic material. The struts need not be transparent.
[0014]
When the installation plate 1 formed as described above is installed at a predetermined interval, for example, at an interval of 5 to 7 m along the median strip 2 of the road as shown in FIG. 1, night illumination from a vehicle traveling in the oncoming lane is performed. Light impinges on the surface of the plate assembly 3 of the installation plate 1. Then, the light is scattered by the unevenness formed on the inner surface in the central region 7 of the plate members 5 and 6 and the hexagonal pyramid-shaped protrusion 18 formed on the inner surface of the peripheral region 8. Therefore, it is possible to prevent the illumination light from hindering the driving of the driver of the vehicle running in the opposite direction. In addition, the coating layer 17 of the luminous material formed on the inner surface of the edge 9 stores the energy of the stimulating light received from the outside and shines in a dark state, which is useful for recognizing the position of the median strip.
[0015]
In order to achieve the desired effect, the plate assembly 3 of the installation plate 1 is installed via the column 4 so that the height is 600 mm to 700 mm, the width is 400 mm to 450 mm, and the overall height is 1400 to 1500 mm. Is preferred.
[0016]
Referring to FIG. 1, a line A indicates a direction perpendicular to a length direction of the road median strip 2, and a line B is a projection of a surface of a plate member constituting a main member of the installation plate 1. As can be seen from the figure, the installation plate 1 is preferably arranged such that the center plane P of the plate assembly 3 is inclined by an angle θ with respect to the perpendicular direction A in order to reduce the wind pressure from the vehicle. The preferred tilt angle is between 10 ° and 20 °.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which an installation board according to an embodiment of the present invention is installed along a median strip of a road.
FIG. 2 is a front view showing the entire installation plate according to one embodiment of the present invention.
FIG. 3 is an enlarged front view showing a plate assembly portion of the installation plate shown in FIG. 2;
4A and 4B are cross-sectional views showing details of the structure of an installation plate, wherein FIG. 4A is a cross-sectional view taken along line AA of FIG. 3, and FIG. FIG.
5 is an enlarged sectional view taken along line BB of FIG. 3 showing the unevenness of the edge portion and the coating layer of the phosphorescent material.
FIG. 6 is an enlarged view showing a protrusion formed on an inner surface of a peripheral portion.
FIG. 7 is a bottom view in which a part of a support is cut away.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Installation board, 2 ... Median strip, 3 ... Plate assembly, 4 ... Prop,
5, 6: plate member, 7: central area, 8: peripheral area, 9: edge,
17 ... Coating layer, 18 ... Protrusion

Claims (3)

An installation plate installed on the road median strip to shut off lighting of oncoming vehicles at the road median strip and to facilitate identification of the median strip at night driving,
A pair of plate members made of a molded article of a transparent plastic material, wherein the pair of plate members are joined to each other at peripheral edges to form an integrated assembly having a hollow interior;
An installation plate, wherein each of the pair of plate members has irregularities formed on an inner surface facing the hollow interior of the assembly, and has a coating layer of a phosphorescent material on at least an edge of the inner surface. 2. The installation plate according to claim 1, wherein each of the pair of plate members has a flat central region, and an inner surface of the central region is a rough surface with fine irregularities, A mounting plate characterized in that a peripheral region outside the region has an arcuate horizontal cross section, and a large number of pyramid-shaped protrusions are formed on the entire inner surface. 3. The installation plate according to claim 1, wherein a center plane of the plate assembly is disposed at an angle of 10 ° to 20 ° from a direction perpendicular to a length direction of a road median strip. An installation plate characterized by that.

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