JP2597803Y2 - Road sign device using phosphor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road sign device using a phosphor, more specifically, a road sign installed at a position higher than a car running on a road, for example, a direction indicating plate, a distance indicating plate or a fee. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road sign used as a place indication display board for indicating a place or the like, and particularly to a road sign device capable of emitting fluorescent light at night.

[0002]

2. Description of the Related Art Conventionally, various road signs have been used. Such a road sign has been required to not disturb the driver and to have excellent visibility. Among such road signs, a road sign provided at a relatively low position can be recognized by sunlight in the daytime, and can be recognized by light from a headlight of a passing car at night. I have. Therefore, this road sign does not distract the driver and has excellent visibility.

[0003] Among the road signs, there are road signs installed at a position higher than a car traveling on the road, for example, a direction indication display board, a distance indication display board, a location indication display board indicating a tollgate, and the like. . Such a road sign can be recognized by sunlight in the daytime, but does not reach the light from the headlights of a passing car at nighttime. Therefore, although this road sign does not dazzle the driver as it is, it is not particularly excellent in night visibility.

To improve visibility at night, it is necessary to illuminate the light source. However, if the light enters the eyes of a driver while driving, an accident may occur. If this happens, the driver may be disturbed, so that the exposure light source cannot be used. For this reason, a road sign installed at a higher position than a car traveling on a road is formed in a hollow box shape having various displays on an outer surface, and a light source (generally, a fluorescent lamp) is put inside the road sign. Was formed so that it could be recognized by sunlight and at night by turning on the light source, so that the driver was not dazzled and had excellent visibility.

[0005] Furthermore, the display used for a road sign installed at a position higher than a car traveling on such a road generally indicates an instruction in white or the like on a green background.

[0006]

However, a road sign installed at a higher position than such a conventional car running on a road is formed in a hollow box shape because an exposure light source cannot be used, and a light source is provided inside the hollow box. Because it was formed by putting
Replacement when the light source is cut off or the like has been extremely complicated.

Furthermore, conventional road signs are generally indicated in white or the like on a green background, so that when traveling at high speed, it is sometimes difficult to see the road signs. Therefore, of the present invention, the invention according to claim 1 is a road sign device installed at a position higher than a car traveling on a road, and a part or all of information required for a road sign is fluorescent. The fluorescent display section is drawn using a body, the fluorescent display section is visually recognized by sunlight in the daytime, and at night, the fluorescent display section is formed by irradiating ultraviolet rays to generate a fluorescent color. An object of the present invention is to provide a road sign which is provided outside the road sign so that the irradiation source can be easily replaced.

The invention according to claim 2 provides, in addition to the object of the invention according to claim 1, a road sign using a phosphor that enables various display modes by changing the color of coloring. It is intended to do so.

[0009]

According to one aspect of the present invention, there is provided a road sign device installed at a higher position than a car traveling on a road. , With a fluorescent display part drawn by using a part or all of the information required by the road sign using a phosphor,
The fluorescent display unit is provided with an irradiation source for irradiating ultraviolet rays , and further,
The phosphor, a urethane resin-based ink, a fluorescent material
Characterized by being formed by dispersing a powder of

According to a second aspect of the present invention, in addition to the configuration of the first aspect, a part or all of the information required for the road sign is provided by a fluorescent material having a different fluorescent color. It is characterized in that it is a drawn fluorescent display section.

[0011]

The road sign using the phosphor according to the present invention is capable of sufficiently recognizing various displays by visually recognizing the fluorescent display section with sunlight in the daytime. In addition, at night, the fluorescent display unit emits fluorescent light by irradiating the fluorescent display unit with ultraviolet rays from the irradiation source, so that various displays can be recognized in a clear and easy-to-eye state.

Further, a part or all of the required information is displayed on a fluorescent display part drawn by phosphors exhibiting different fluorescent colors, so that a highway can be distinguished from a branch road or a warning display can be clearly displayed. That can be visually recognized.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a road sign device using a phosphor according to the present invention, and FIG. 2 is an enlarged sectional view of the same. In the figure, this road sign device is a road sign device installed at a position higher than a car traveling on a road, and a part or all of information required for a road sign 10 is drawn using a phosphor. In addition to the fluorescent display unit 20, an irradiation source 30 for irradiating the fluorescent display unit 20 with ultraviolet rays is provided. A hood 31 is provided above the irradiation source 30.

[0014] More specifically, the road sign device is installed at a higher position than a car traveling on a road.
It is fixed to the upper part of a pole 11 erected from the side of the road. Further, this road sign device is shown as having a road sign 10 indicating that the vehicle will go straight to "Tokyo" when going straight on the road and to "Chiba" when turning left.

Here, the part of the back 14 excluding the arrow display part 12 and the place name display part 13 of "Tokyo" and "Chiba", which are required in the road sign 10, is painted in advance with a green paint under sunlight. It is drawn using. Arrow display unit 1
2 and the place name display section 13 of “Tokyo” and “Chiba” are drawn using a paint containing a phosphor that exhibits white under sunlight and also exhibits white when irradiated with ultraviolet rays. It is. Therefore, in this embodiment, only the arrow display section 12 and the place name display section 13 of "Tokyo" and "Chiba" can be said to be the fluorescent display section 20.

Accordingly, in the daytime, the road sign 10 having the white arrow display section 12 and the place name display section 13 on the green back 14 is visually recognized. At night, the irradiation source 3
By irradiating ultraviolet rays from 0, the arrow display unit 12 as the fluorescent display unit 20 and the place name display unit 1 of “Tokyo” and “Chiba”
Only 3 will emit fluorescence. Therefore, at night, only the fluorescently colored arrow display section 12 and the place name display sections 13 of "Tokyo" and "Chiba" appear to be raised.

Of course, in this case, the portion of the back 14 of the road sign 10 can be drawn using a paint containing a phosphor that exhibits a green color under sunlight and also exhibits a green color when irradiated with ultraviolet rays. . In this case, the entire surface of the road sign 10 can be said to be the fluorescent display unit 20. In this case, similarly to the road sign 10 described above, the road sign 10 is visually recognized in the daytime as a road sign 10 having a white arrow display unit 12 and a place name display unit 13 on a green background 14. However, at night, the arrow display unit 12
And "Tokyo" and "Chiba"
Since the portion of the back 14 also emits fluorescent light, the visibility is further improved.

Further, in the embodiment, only the arrow in the direction of Chiba and the place name display of "Chiba" are drawn using a paint containing a phosphor which looks blue in the daytime and shows a blue color even when fluorescent. Since it can be clearly distinguished from "Tokyo" when the vehicle goes straight to emit white fluorescent light, the visibility is further improved. In the above description, the color that is recognized by the sunlight during the daytime and the color when the fluorescent color is emitted are described as an example of the phosphor that is the same color. However, different colors may be used.

Regardless of the type of fluorescent material used, the fluorescent color is clearly visible but easy on the eyes, so that it is useful for relieving stress on drivers running on highways and the like. is there. Here, as a powder of a fluorescent material constituting a display unit that emits light by irradiation with ultraviolet light, white light emission can be classified according to the color of light emission. Product names ALN-B, YS-A, HG-A manufactured by Nemoto Special Chemical Co., Ltd. Product name YS-A, HG-A made by Nemoto Special Chemical Co., Ltd. Blue light emission Made by Nemoto Special Chemical Co., Ltd. Product name: ALN-B Red light emission Made by Nemoto Special Chemical Co., Ltd. Product name YS-A Green light emission Nemoto Special Product name HG-A manufactured by Chemical Co., Ltd. can be mentioned.

In order to provide the fluorescent display section 20 on the road sign 10, the fluorescent pigment powder is dispersed in a urethane resin-based ink at a weight ratio of 2: 1. Form. Next, the fluorescent display unit 20 is directly printed on the road sign 10 using the ultraviolet irradiation light emitting material, and dried at 60 ° C. for about 15 minutes to perform coating and fixing.

[0021] However, in this case, a printing plate is required or a drying time is required. Therefore, for example, a material in which an adhesive layer is formed on one surface of a urethane resin-based sheet, and a material on which the other surface is printed using an ultraviolet irradiation light-emitting material is prepared for each color, and cut out into an arbitrary shape, and a road sign By attaching the fluorescent display unit 10 to the fluorescent display unit 10, the fluorescent display unit 20 can be formed.

In this way, the fluorescent display unit 20 can be provided on the road sign 10 without waiting for drying or the like. Further, as the irradiation source 30, an ultraviolet lamp having a wavelength of 300 to 400 nm is used. Specifically, for example, an ultraviolet lamp of BL-B 15W manufactured by Matsushita Electric Industrial Co., Ltd. can be used.

Here, the ultraviolet light from the irradiation source 30 is
Since it is out of the visible light range, the irradiation source 30
Even if ultraviolet light from the eyes enters the eyes, the driver does not recognize it and therefore does not dazzle the driver. Furthermore, in the embodiment, since the irradiation source 30 is provided as an external exposure type, even if the irradiation source 30 is cut, it can be easily replaced.

In the embodiment, the irradiation source 30 is set to the road sign 1
Although the case where it is provided in the upper part of 0 is described as an example, for example, the irradiation source 30 may be provided on the ground to irradiate the road sign 10 with ultraviolet rays, or the irradiation source 30 may be provided on the pole 11.

[0025]

[Effects of the Invention] As described above, in the present invention,
The invention according to claim 1 is a road sign device installed at a position higher than an automobile running on a road, wherein a part or all of information required for a road sign is drawn using a phosphor. In the display, this fluorescent display is visually recognized by sunlight during the day, and at night, it is formed by irradiating ultraviolet rays to generate fluorescent color so that it can be seen, and an irradiation source for irradiating ultraviolet rays is provided outside the road sign. This facilitates replacement of the irradiation source.

According to the second aspect of the present invention, in addition to the effects of the first aspect, various display modes are made possible by changing the color of the coloring.

[Brief description of the drawings]

FIG. 1 is a front view showing a road sign device using a phosphor according to the present invention.

FIG. 2 is an enlarged cross-sectional view illustrating the road sign device using the phosphor according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Road sign 11 Pole 12 Arrow display part 13 Place name display part 14 Back 20 Fluorescent display part 30 Irradiation source 31 Hood

Claims (2)

(57) [Scope of request for utility model registration] 1. A traffic sign device installed at a position higher than an automobile running on a road, wherein a part or all of information required by a traffic sign is drawn using a phosphor. In addition, an irradiation source for irradiating the fluorescent display unit with ultraviolet light is provided , and the phosphor is further formed of a urethane resin-based material.
A road marking device using a phosphor, wherein a phosphor material powder is dispersed in ink . 2. A fluorescent display according to claim 1, wherein a part or all of the information required by the road sign is a fluorescent display part drawn by fluorescent substances exhibiting different fluorescent colors. Road sign device.