JPH09328726A - Frp molded body with indicating function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a molded body with an indicating function, excellent in weatherability, strength and lightweight at a low cost. SOLUTION: Plural LED light emitting elements 3 are disposed and buried rectilinearly in the longitudinally near the surface of a FRP molded body 1, and a the respective light emitting elements 3 are connected to each other by a current-carrying lead wire 31 to be installed on a holding sheet 30. The molded body 1 is formed by a pipe-like body 2 made by a transparent body made of FRP, and the light emitting elements 3 are adapted to emit light intermittently with a time difference from each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an F with display function.
The present invention relates to an RP molded body.

[0002]

2. Description of the Related Art Conventionally, a railroad crossing barrier is often damaged by a vehicle colliding at night. In addition, a large number of light bulbs are included on the fence at the construction site for nighttime display.

[0003]

In order to prevent the breakage of the above-mentioned shutoff rod, it is conceivable to provide it with a display function. However, the blocking rod may get wet in the rain,
Since it is used under the condition that an impact is often applied from the outside, when it is intended to have a display function, the one provided with the display means has excellent weather resistance and strength. Is required, and it is also necessary that it is lightweight and can be manufactured at low cost. Also, the fence at the construction site is required to have almost the same function.

The present invention has been made in order to solve such conventional problems, and provides a FRP molded article having a display function, which is excellent in weather resistance and strength, can be manufactured at a low weight and at a low cost.

[0005]

According to the first aspect of the present invention, there is provided a method for producing an FR.
A plurality of LED light emitters and lead wires for energizing each light emitter are embedded near the surface of the P molded body.

In the invention of claim 1, the LED luminous body is FR.
FR with display function because it is embedded in the P molded body
The P-molded product has excellent weather resistance and strength, is lightweight, and can be manufactured at low cost.

According to a second aspect of the invention, the molded body is a pipe-shaped body.

According to the second aspect of the present invention, there is provided a railroad crossing blocking rod and a fence at a construction site, which have the above-described effects.

According to a third aspect of the invention, the molded body is a transparent body.

According to the third aspect of the present invention, it is possible to achieve the display function of the LED illuminant in addition to the above-mentioned effects.

According to a fourth aspect of the present invention, a semitransparent sheet that scatters light from the light emitter is attached to the surface of the region where the light emitter is embedded.

According to the fourth aspect of the invention, it is possible to set a wide range of light sources by the LED light emitters.

According to a fifth aspect of the present invention, a reflecting plate for diffusely reflecting the light from the light emitting body is attached to the surface of the region in which the light emitting body is embedded.

According to the fifth aspect of the invention, the light source by the LED light emitter can be set wide similarly to the above.

A sixth aspect of the present invention is the person who arranges the light-emitting body so as to form characters, figures and the like.

According to the sixth aspect of the invention, it is possible to make the display function of the light emitter more versatile.

According to a seventh aspect of the present invention, a plurality of light emitting areas are formed at a predetermined interval, and a plurality of the light emitting bodies are arranged close to each other in each light emitting area.

According to the seventh aspect of the invention, the display function can be extended to a further distance by enlarging the light source.

According to an eighth aspect of the present invention, the light emitters are configured to emit light intermittently with a time lag between them.

According to the eighth aspect of the invention, the display portion can be made conspicuous by blinking the light emitting body.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing a FRP molded body of the present invention, which is a FRP molded body 1 with a display function.
Is LE in the vicinity of the surface of the transparent FRP pipe-shaped body 2.
The D luminous body 3 is embedded and formed. A plurality of the LED light-emitting bodies 3 are connected to each other by the lead wires 31 in a partial area in the circumferential direction of the FRP molded body 2 and are arranged in a straight line on the transparent holding sheet 30, and are not shown. The FRP molded body 2 has a display function of notifying the presence of the molded body 2 at night by emitting light by energization from a power source and emitting light on the surface of the FRP molded body 2.
As the holding sheet 30, for example, a polyimide film is used. In the illustrated example, the LED light emitters 3 are linearly arranged in the lengthwise direction only at one location in the circumferential direction of the pipe-shaped body 2, but they are arranged at a plurality of locations in the circumferential direction and are straightened in the lengthwise direction. The LED light emitters 3 may be arranged spirally along the outer surface of the pipe-shaped body 2. Further, a plurality of LED light emitting bodies 3 may be arranged so as to draw a predetermined character or figure.

FIG. 2 is a partial cross-sectional view showing a state in which the above-mentioned molded body 1 is manufactured. The conventionally known hand lay-up method is applied on the outer surface 41 of the mold 4 having a predetermined diameter and a predetermined length. The state in which FRP is laminated by means such as the above is shown. In this laminating operation, first, the reinforcing fiber 21 of the first layer is wound around the outer surface 41 of the mold to form the transparent resin 2
4 is impregnated with the second layer of reinforcing fibers 22 and then with the resin 24 impregnated therewith, and then with the third layer of reinforcing fiber 23 further wrapped with the resin 24 to impregnate the resin 24. The FRP pipe-shaped body 2 is formed. In this step, the L attached to the holding sheet 30 before winding the reinforcing fiber 23 of the third layer
The LED light emitter 3 and the lead wire 31 are arranged on the pipe-shaped body 2 by arranging the ED light-emitting body 3 in the lengthwise direction of the pipe-shaped body 2 and winding the reinforcing fiber 23 of the third layer so as to press it down. It is placed near the surface. Then, after the resin 24 is cured, the pipe-shaped body 2 is removed from the mold 4.

At the time of this removal, since the temperature decreases as the resin 24 hardens, the outer diameter of the mold 4 decreases, which creates a gap with the inner peripheral surface of the pipe-shaped body 2. It can be easily pulled out. In addition, in order to make this drawing easier, the mold 4 may be formed so as to gradually narrow in the length direction.

FIG. 3 is a partial vertical sectional view of a laminated state showing another embodiment of the present invention, and shows a state in which FRP is laminated on the mold 4 by the same method as described above. Then, in this example, after winding the reinforcing fiber 21 of the first layer, the LED light emitting body 3 is arranged toward the surface 41 of the mold,
The second layer of reinforcing fibers 22 and the third layer of reinforcing fibers 23 are sequentially laminated thereon to form the pipe-shaped body 20. With this configuration, the LED light-emitting body 3 emits light toward the inner surface side of the pipe-shaped body 2.

FIG. 4 shows still another embodiment of the present invention. A plurality of light emitting regions 39 are formed at a predetermined interval on the surface of the pipe-shaped body 2, and a plurality of light emitting regions 39 (in this embodiment, in this embodiment). (8 pieces) of the light emitters 3 are arranged close to each other, and the LED light emitters 3 between the light emitting regions 39 are connected to the lead wire 31.
It is electrically connected with. In this configuration, the light emitting portions A and the non-light emitting portions B are alternately arranged in the length direction of the pipe-shaped body 2. Further, such a light emitting region 39 is
Only one location in the circumferential direction may be formed linearly in the length direction, or a plurality of locations in the circumferential direction may be linearly arranged in the length direction. Further, the light emitting regions 39 are arranged in a spiral shape. May be. When a large number of light-emitting bodies are integrated by setting the light-emitting region wide in this way, the amount of light emission can be increased, so that the visibility from a distance can be improved.

FIG. 5 shows still another embodiment of the present invention, in which the LED light emitting body 3 is embedded in the pipe-shaped body 2 near the outer surface thereof, and the surface of the region in which the LED light emitting body 3 is embedded, Semi-transparent sheet 6 that scatters light from the light-emitting body 3
Is affixed. In this configuration, since the light from the LED light emitter 3 is scattered by the semitransparent sheet 6, the light source can be widened.

FIG. 6 shows still another embodiment of the present invention, in which the LED light emitter 3 is embedded near the inner surface of the pipe-shaped body 20, and the inner surface of the region where the LED light emitter 3 is embedded. A reflector 5 that diffuses the light emitted from the light-emitting body 3 is attached thereto. The reflector 5 is curved in the shape of a circular arc in the direction of the light-emitting body 3 and extends in the lengthwise direction of the pipe-shaped body 20, and a large number of concavities and convexities are formed on the curved inner surface of the light-emitting body 3. Light is diffusely reflected by the uneven surface. The reflector 5 may be made of a transparent material so that the reflector 5 can be seen from the side opposite to the side where the light emitter 3 is embedded through the transparent pipe-shaped body 20, or the light emitter 3
You may make it see the uneven | corrugated surface of the reflection plate 5 from the side in which was embedded.

In each of the above-mentioned embodiments, an example in which the light-emitting body 3 is embedded in a pipe-shaped body is shown, but the light-emitting body may be embedded in a flat plate-shaped body instead of the pipe-shaped body.

The FRP molded body 1 with the display function is
The LED light emitter is embedded in the FRP molded body, so it has a compact structure, is lightweight, has high strength, is excellent in water resistance and weather resistance, and has good nighttime visibility, so it is an elongated pipe shape. It is suitable to use it as a body for a railroad crossing barrier or as a fence at a construction site. Further, it can be used as a danger display plate, an outdoor signboard, or an outdoor display plate as a flat body, and can also be applied to a ship body of FRP or a body of a truck. Further, it is possible to energize all the embedded light emitters entirely intermittently, or alternately energize a plurality of light emitters that are alternately arranged so that a plurality of light emitters have a time difference from each other. It may be configured to intermittently emit light.

[0030]

According to the invention of claim 1, the LED luminous body is F
F with display function because it is embedded in RP molded body
The RP molded article has excellent weather resistance and strength, is lightweight, and can be manufactured at low cost.

According to the second aspect of the present invention, there can be obtained a railroad crossing blocking rod and a fence at a construction site, which have the above-described effects.

According to the third aspect of the invention, it is possible to achieve the display function of the LED illuminant while having the above-mentioned effects.

According to the fourth aspect of the invention, it is possible to set a wide range of light sources by the LED light emitters.

In the fifth aspect of the invention, the light source by the LED light emitter can be set wide similarly to the above.

According to the sixth aspect of the invention, the display function by the light emitting body can be made more versatile.

According to the invention of claim 7, the display function can be extended to a farther position by enlarging the light source.

In the eighth aspect of the invention, the display portion can be made conspicuous by blinking the light emitting body.

[Brief description of drawings]

FIG. 1 is a perspective view of an FRP molded body showing an embodiment of the present invention.

FIG. 2 is a partial transverse sectional view of the FRP molded body of FIG. 1 in a manufactured state.

FIG. 3 is a partial vertical cross-sectional view of an FRP molded body in a manufactured state.

FIG. 4 is a partial side view of an FRP molded body showing another embodiment of the present invention.

FIG. 5 is a transverse sectional view of an FRP molded body showing still another embodiment of the present invention.

FIG. 6 is a transverse sectional view of an FRP molded body showing still another embodiment of the present invention.

[Explanation of symbols]

 1 Molded product made of FRP 2,20 Pipe-shaped body 3 LED luminous body 21,22,23 Reinforcing fiber 24 Resin 30 Holding sheet 31 Lead wire

Claims (8)

[Claims] 1. A plurality of LEs are provided in the vicinity of the surface of the FRP molded body.
An FRP molded body with a display function, in which a D luminous body and a lead wire for energizing each luminous body are embedded. 2. The FRP molded product with a display function according to claim 1, wherein the molded product is a pipe-shaped product. 3. The FRP molded body with a display function according to claim 1, wherein the molded body is a transparent body. 4. The FRP molding with a display function according to claim 1, wherein a semitransparent sheet that scatters light from the light emitting body is attached to the surface of the region where the light emitting body is embedded. body. 5. The surface of the region in which the luminous body is embedded,
4. An F with a display function according to claim 1, further comprising a reflecting plate attached to diffusely reflect the light from the light emitting body.
RP molded body. 6. The FRP molded body with a display function according to claim 1, wherein the luminous body is arranged so as to form a character, a figure and the like. 7. A plurality of light emitting regions are formed at predetermined intervals,
The FRP molded body with a display function according to claim 1, wherein a plurality of the light emitting bodies are arranged in proximity to each other in each light emitting region. 8. The FRP molded body with a display function according to claim 1, wherein the light emitting body is configured to emit light intermittently with a time lag from each other.