JPH05280016A - Pavement block incorporating light emitting element - Google Patents

Abstract

PURPOSE:To make a stable indication easily and always visible for a long time by laying heat insulating elements between light emitting elements and snow melting heaters, and by integrally incorporating them with each other. CONSTITUTION:Heat insulating members 5 are laid between light emitting elements 3 such as LEDs and snow melting heaters 4, 4 which are then integrally incorporated with each other by means of a concrete block base 1 so as to form a pavement block B incorporating heating elements. It is preferable to use granite for the heat insulating members 5. With the provision of the heaters 4, an indication may be seen during removal of snow since it is not covered with snow, and the heat insulating members 5 may prevent the light emitting elements 3 from deteriorating its characteristic due to heat from the heaters 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to road traffic signs and decorations,
The present invention relates to a structure of a block in which a light emitter suitable for a display device such as sign illumination is embedded.

[0002]

2. Description of the Related Art Conventionally, a road such as a pedestrian crossing, a lane, a stop line, and a median strip is displayed by drawing a line with paint. With such a display, it may be difficult to see at night, so we used paint mixed with glass beads that reflect the light of the car. However, recently, it is becoming more and more common to use a light emitting device for display to make it easier to view.

Recently, as a light emitting device, a plurality of blocks in which a light emitting body such as an LED (light emitting diode) is integrated with a composite material such as a resin mortar are embedded in a road without using a special tool. Is being done.

[0004]

By the way, when such a light emitting device is embedded and used on a road in a snowy region such as a cold region, if snow is accumulated on the road during snowfall, the display of this block cannot be seen at all or There is a problem that the display is difficult to see because the snow melts only in the vicinity of the light emitting portion due to heat.

For this reason, it has been attempted to embed the snow melting heater in the block. However, the heat of the snow melting heater causes the light emitting bodies such as LEDs to deteriorate in characteristics and become defective. It was

[0006]

DISCLOSURE OF THE INVENTION The block for paving a light-emitter according to the present invention is characterized in that a heat insulating member is arranged between the light-emitter and the snow melting heater, and these are integrated with concrete.

[0007]

According to the present invention, when a concrete block having a luminous body embedded therein is used on a road or the like during a snowfall in winter, the snow on the block is melted by a snow melting heater to make it easy to see the display and a heat insulating member having a low heat conduction. Prevents the heat of the light from affecting the luminous body.

[0008]

Embodiments of the present invention will be described below with reference to FIGS.

Reference numeral B is a block for embedding a light-emitter, 1 is a block base made of concrete in which reinforcing reinforcing bars 2 are embedded, 3, 3, ... Is a light-emitting body formed of a plurality of LEDs (light-emitting diodes) having a light irradiation surface.
Reference numeral 4 is a snow melting heater embedded in the base body 1, and 5 is the above L
The heat insulating member is made of, for example, granite, which is a material having a thermal conductivity lower than that of the concrete, which is provided between the EDs 3, 3, ... Also, 6 and 7 are L
Lead wires connected to the EDs 3, 3, ... (Light emitters) and the snow melting heater 4, reference numeral 8 indicates a cross-shaped groove for wiring the lead wires 6 and 7 formed on the bottom surface of the block base 1, and is indicated by a broken line. Reference numeral 9 is a waterproof cover that covers the lead wires 6 and 7.

A plurality of such blocks B for embedding the light-emitters are continuously arranged on the road and are laid out.
The output lines 6 and 7 of B, ... Are connected to the LEDs 3,
3, ... (Light emitter) and the snow melting heater 4 is energized during snowfall in winter. By this energization, the LEDs 3, 3, ... (Luminescent body) display a predetermined light emission, the block base 1 made of concrete is kept warm, and the snow on the block base 1 is melted. At this time, the heat of the snow melting heater 4 does not reach the LEDs 3, 3, ...
The snow on the light irradiation surface of the EDs 3, 3, ... Is melted by the heat generated by the light emission of the LEDs 3, 3 ,. Therefore, the LED
.. (light-emitting body) are less affected by heat other than self-heating, and the characteristics of the LEDs 3, 3 ,.

Incidentally, the block B for paving the light-emitter is manufactured by arranging a plurality of, for example, L on the reinforcing bar 2 for reinforcement in the wooden mold.
ED3, 3, ... (Light emitting diode) is locked, the snow melting heater 4 and the heat insulating member 5 are arranged, and concrete is poured into the ED 3, 3 ,. Also, the concrete block substrate 1 may be molded while leaving a space for accommodating the heat insulating member 5, and afterwards, the respective parts may be mounted and integrated to complete, which is extremely easy to manufacture.

FIGS. 4 and 5 show another embodiment. In the drawings, the same parts as those in FIGS. 1 to 3 are designated by the same reference numerals and the description thereof will be omitted. In the case of this embodiment, L which is a light emitting body
In order to reinforce the EDs 3, 3, ..., The tubular reinforcing body surrounding the LED 3 is constituted by the heat insulating member 5. Also, on the bottom surface of the block base 1,
Abbreviation X made of metal to stabilize when paving the road
A spacer 10 having a letter shape is fixed. The spacer 10 has the same size as the longest part of the block base 1 and can maintain parallelism when the block base 1 is connected in parallel with another adjacent block base 1. The spacer 10 can also be used for wiring storage.

Incidentally, the present invention is not limited to the above-mentioned embodiment. For example, in the above-mentioned embodiment, the granite is used as the heat insulating member,
Not limited to granite, it is a composite material that has a lower thermal conductivity than that of the base concrete and has similar hardness and approximately the same wear resistance as metal or ceramics, glass, rubber, synthetic resin, etc., alone or mixed. Good. Further, the heat insulating member is not limited to one exposed on the surface of the block substrate, and may be embedded so as to surround only a portion of the light emitting body having low heat resistance. Further, the arrangement of the heat insulating member surrounding the light emitting body may be arranged so as to surround a plurality of light emitting bodies as a group, not for each individual light emitting body. You can select the size appropriately.

Although the LED (light emitting diode) is used as the light emitting body, it is not limited to the LED (light emitting diode).
It may be electroluminescence, a light bulb, a discharge lamp or the like. Further, although the present invention is used as a paving block, it is not limited to the one used on the road surface, but can be applied to a traffic sign on the road side, a sidewalk decoration, sign lighting, and the like.

[0015]

As described in detail above, in the paving block of the present invention, since the snow melting heater is provided in the block, it is possible to always display without snow accumulated on the block during snowfall, and to display the light emitting element. Since the heat-melting member is separated from the snow-melting heater, the luminous body is not damaged by the heat of the snow-melting heater in the early stage, and stable display can be performed for a long time. In addition, there are various advantages such as improving the aesthetics of the city by using a heat insulating material arranged around the light-emitting body in a color different from that of the block, or using a decorated one such as a star shape for the sidewalk. ..

[Brief description of drawings]

FIG. 1 is a top view showing a paving block according to an embodiment of the present invention.

2 is a partial cross-sectional side view showing the pavement block of FIG. 1. FIG.

3 is a bottom view showing the pavement block of FIG. 1. FIG.

FIG. 4 is a partial sectional side view showing another paving block according to the present invention.

5 is a bottom view showing the pavement block of FIG. 4. FIG.

[Explanation of symbols]

 B Block for embedding light emitters 1 Block base 3 Light emitter (LED) 4 Heater for snow melting 5 Heat insulating member

Claims (2)

[Claims] 1. A block for paving a light-emitter, wherein a heat-insulating member is arranged between the light-emitter and a snow melting heater, and these are integrated with concrete. 2. The block for paving the light-emitter according to claim 1, wherein the heat insulating member is granite.