JP3580653B2 - Road surface member for light emitting display - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides a safe walking or running guidance by displaying and emitting light on a road surface in a dark state at night or during a power outage in a road for automobiles, a passage for pedestrians, an underground shopping mall, an underground passage, a passage in a building, a passage for boats, stairs, and the like. The present invention relates to a road surface member such as a tile, a block, and a terrazzo.
[0002]
[Prior art]
Conventionally, there has been no guide method on a road surface using a light-emitting body. In recent years, research has been conducted on evacuation guidance using a luminescent material to ensure safety during a power failure such as a disaster. However, the luminescent material hydrolyzes as it is and is generally used as a paint because of poor weather resistance, and the luminescent material is mixed into resin and used as a plate-like wall material for a portion requiring an induction effect. Has begun. However, at present, resin-based light-emitting materials are not used on road surfaces and the like because of their poor weather resistance and abrasion resistance and poor durability.
[0003]
[Problems to be solved by the invention]
Accordingly, the present invention provides a road surface member such as a road, a passage, or a floor surface on which a display of a luminous body is formed on a surface so as to guide a line of sight and a safe line and an evacuation guide can be provided at night or during a power failure.
[0004]
[Means for Solving the Problems]
Therefore, the present invention is, I arranged shall Der roads and paths such as a floor or the like, tile, on the surface of the road surface member main block such as a phosphor with a fluorescent or phosphorescent characteristics and luminescent material This light-emitting material is mixed at a ratio of 3 to 50% by weight with respect to the borosilicate glass base material, and a granular light-emitting body in a state where the light-emitting material is wrapped in the base material, which is obtained by firing, is arranged. Then, a light-emitting display road surface member having a configuration in which guidance or gaze indication such as an arrow is formed. Incidentally, but it may also be arranged a light emitter to the convex portion or the concave portion of the road surface members mainly for blind induce having an uneven portion on the surface.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described. The plate-like road surface member indicated by an arrow shown in FIGS. 1 and 2 has a light-emitting body 2 arranged on the surface of a concrete road surface member main body 1 containing a general aggregate 10 in cement so as to indicate the arrow. The material 10 and the luminous body 2 are slightly exposed from the surface.
[0006]
The luminous body 2 can be integrally fixed to the concrete by arranging it on the surface before the concrete of the road surface member 1 is hardened. Alternatively, as shown in FIG. 3, after the road surface member main body 1 is cured, the light emitting body 2 may be fixed to the display unit via the adhesive 3.
[0007]
Here, the light-emitting material of the light-emitting body 2 may be a pulverized phosphor or phosphorescent phosphor, and sulfide, halophosphate-based, silicate-based, tungsten, or the like can be used. Acid salts are preferred, and inorganic bodies are suitable. Further, the luminous body 2 is such that this luminescent material contains a resin base material or a ceramic base material.
[0008]
As the resin base material, an MMA resin, an epoxy resin, an unsaturated polyester, or the like is used as long as the resin has high transparency, but the MMA resin is preferable. In addition, as the ceramic base material, there is a material which is reactive at the time of melting and firing and must be individually selected depending on the fluorescent material, but a ceramic having a high transparency, a low content of transition metal oxides and heavy metals and a low melting point is used. Desirably, high-purity borosilicate glass or the like is suitable.
[0009]
The base material is mixed with a light emitting material in an amount of 3 to 50% by weight and fired, and the resulting mixture is pulverized to form a granular light emitting body 2. The light emitting material is wrapped in the base material. It is. Therefore, it is preferable to use an inorganic ceramic base material in order to obtain a high-intensity luminous body 2. If the light emitting material is less than 3% by weight, a predetermined light emission luminance cannot be obtained. If the light emitting material is more than 50% by weight, mechanical or chemical durability gradually decreases and the cost becomes high, so that it cannot be adopted. A suitable range is from 5 to 35% by weight.
[0010]
According to this embodiment, the luminous body 2 is excellent in abrasion resistance due to the high-intensity granularity, and the luminous body 2 emits light to provide a gaze guidance effect at night or at the time of a power failure such as a disaster. Therefore, traffic at night or during a power failure can be safely guided.
[0011]
In the present invention, regardless of the material and size of the luminous body, any luminous body containing a luminous material that exhibits luminous characteristics upon irradiation with light may be used, and the content of the luminous material is not limited. In addition, if the luminous brightness can be secured, the luminous body may be mixed with the general aggregate and fixed to the surface of the road surface member, and the proportion thereof is also appropriate. The general aggregate may be a generally used porcelain or ceramic body such as crushed stone, alumina, silicon carbide or Emily.
[0012]
Further, the size and material of the road surface member are also arbitrary, and may be blocks, tiles, various stone materials, and the like, and the luminous body fixing means is also appropriate. In addition, the display by the luminous body is not limited to arrows, but may include various lines, branch lines, dots, circles, etc., or evacuation directions and position divisions, etc., alone or in combination. Can be displayed systematically. An example of this display is shown in FIG. 4, but is not limited to this form.
[0013]
【The invention's effect】
According to the first aspect of the present invention, the light emission of the luminous body safely guides traffic at night and during a power failure. According to the second aspect of the present invention, the light emission can be seen well when the light-emitting body is fixed to the convex portion, and the light-emitting body has the extremely low wear resistance when the light-emitting body is fixed to the concave portion because the light-emitting body has very little wear resistance. Furthermore, in the third aspect, the durability is excellent.
[0014]
Embodiment 1
Strontium aluminate SrAl ₂ O ₄ having long-term afterglow characteristics as a phosphorescent fluorescent material, europium Eu as an activator, a ceramic base material, 30% by weight of the fluorescent material, and 70% of a ceramic base material %, Baked at 850 ° C. for 30 minutes, and allowed to cool in a furnace to form an inorganic ceramic phosphor, which was pulverized to a particle size of 3.3 to 2.0 mm to obtain a granular phosphor. The composition of the ceramic base material was as follows: 52.0% by weight of SiO ₂ , 5.3% by weight of Al ₂ O ₃ , 25.4% by weight of B ₂ O ₃ , and 0.03% by weight of Fe ₂ O _3. , TiO ₂ is 0.05 wt%, CaO 0.35 wt%, _{K 2} O is 2.35 wt%, Ng ₂ O 11.0 wt%, other 3.52% by weight.
[0015]
Also, a luminous body using an organic base material is formed by using europium Eu as an activator for the strontium aluminate SrAl ₂ O ₄ as a fluorescent material. 30% by weight of the fluorescent material and 70% by weight of an organic base material. The organic base material is an MMA resin, into which 2.5% of BPO is added, and stirring polymerization is started at 80 ° C. Then, at the time of the start of the viscosity increase, the fluorescent material is charged and the temperature is increased by polymerization, followed by cooling to complete the polymerization. This was pulverized to a particle size of 3.3 to 2.0 mm to obtain a luminous body.
[0016]
These two types of light emitters were used alone or in combination, and arranged on the surface of a terrazzo tile as a flooring material as indicated by an arrow as shown in FIG. An experiment of the light emission luminance of these light emitters will be described. This terrazzo tile was installed on the floor of an underpass, two fluorescent lamps of 80 W were installed at a height of 4 m from the floor, and after 4 minutes irradiation, the lights were turned off and measured.
[0017]
According to this, at the time of the new installation, the phosphorescent luminance of the inorganic lamp and the organic phosphor after 2 minutes of turning off the fluorescent lamp show excellent luminous properties, and there is sufficient phosphorescent luminance up to 15 to 30 minutes. Evacuation guidance at the time of an emergency blackout or the like was possible using the light-emitting display, and it was visible even after 8 hours.
[0018]
After a one-year practical test in the underpass, the same test was performed again. As a result, the luminance of the inorganic luminous body was sufficient as at the time of the new construction, but the surface of the organic luminous body was worn. Progressed, the surface was blackened, and the emission luminance was clearly reduced. As described above, both inorganic and organic light-emitting materials can be used for evacuation guidance by light-emitting display, but inorganic light-emitting materials are superior in terms of durability.
[0019]
Embodiment 2
The inorganic light-emitting material obtained in Example 1 was further pulverized into particles having a particle size of 0.5 to 0.15 mm to obtain a light-emitting material 2, which was mixed with a top coat MMA resin to which PBO was added. It was used for the induction tile 5 for the blind. The mixing ratio is 80% by weight for the luminous body 2 and 20% by weight for the MMA resin. In FIG. 6, the luminous body 2 is applied and fixed with a thickness of 0.8 mm on the upper surface of the protrusion of the induction tile 5. In FIG. 7, the luminous body 2 is applied and fixed on the upper surface of the protrusion of the induction tile 5 with a thickness of 0.8 mm.
[0020]
Then, the tile 5 was installed on the floor of an underpass, two fluorescent lamps of 80 W were installed at a height of 4 m from the floor, and after irradiating for 40 minutes, the measurement was performed. 30 minutes after the light was turned off, sufficient phosphorescent brightness was exhibited, and in the event of an emergency power outage, evacuation guidance by luminous display was possible for both blind and ordinary people, and it was visible even after 8 hours.
[Brief description of the drawings]
FIG. 1 is a perspective view showing one embodiment of the present invention.
FIG. 2 is an enlarged vertical sectional view thereof.
FIG. 3 is an enlarged longitudinal sectional view in which a light emitting body is fixed using an adhesive.
FIG. 4 is a perspective view showing another example of the display unit.
FIG. 5 is a plan view of an induction tile using another embodiment.
FIG. 6 is an enlarged vertical sectional view showing a luminous body on the convex portion.
FIG. 7 is an enlarged vertical sectional view showing a light-emitting body in the concave portion.
[Explanation of symbols]
1 Concrete road surface member main body 10 General aggregate 2 Light emitting body 3 Adhesive 5 Induction tile

Claims (3)

What shall Der disposed passage or the like of the road or floor or the like, tile, on the surface of the road surface member main (1) of the block such as a phosphor with a fluorescent or phosphorescent properties as a light emitting material, the light-emitting material Are mixed at a ratio of 3 to 50% by weight with respect to the borosilicate glass base material, and a granular light-emitting body (2) obtained by firing and in which the light-emitting material is wrapped in the base material is arranged. A road surface member for light-emitting display, wherein a display for guiding or watching an arrow or the like is formed. The convex portion or the concave portion of the road surface members mainly for blind induce having an uneven portion on the surface, the light emitting display road member according to claim 1 comprising the light emitter (2) is arranged. The light emitting display road surface member according to claim 1 or 2, wherein the light emitting material is an aluminate-based phosphor .

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