JP2005301761A - Road surface damage prevention body for fusee - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small and excellent-transportability road surface damage prevention body for a fusee capable of effectively preventing burnout of a road surface, and having excellent bending resistance and impact resistance. <P>SOLUTION: In this road surface damage prevention body 1 for the fusee preventing contact of high-temperature flame generated by combustion of the fusee and a combustion residue with the road surface, a heat insulation layer uses a hydrophilic substance absorbed with water, e.g. a water-soluble natural polymer, a cellulosic, sodium polyacrylate, polyacrylamide, polyacrylamine, polyethylene imine, polyethylene oxide, polyethylene glycol, polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, or propylene glycol. The road surface damage prevention body is provided with a rolling prevention means (e.g. an adhesive layer 4) to fix the fusee. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a road flame damage prevention body for a signal flame tube used for protecting a road surface such as asphalt from a high temperature flame or combustion residue generated by the combustion of the signal flame tube.

  The signal flame tube is an emergency to prevent secondary accidents when road accidents occur on a highway, etc., and road workers are informed that an accident has occurred in the following vehicle due to the high-intensity flame generated by the burning of explosives. It is used as a signal.

  Usually, the signal flame tube is used by placing it on the road surface after generating a flame or smoke by rubbing and igniting an ignition agent provided in the signal flame tube body with a sliding paper.

  However, the flame and combustion residue generated from the signal flame tube reach a maximum temperature of several hundreds of degrees Celsius, and if burned while placed on the road surface, the asphalt burns out, causing a perforated state on the road surface. If left untreated in this state, the holes become larger over time due to the impact of the tires of the traveling vehicle and weathering due to wind and rain, etc. It was.

  In order to solve the above problems, Patent Document 1 proposes a signal flame tube installation tool made of an easily destructible material obtained by hardening a sandy substance such as pearlite with water glass or starchy paste. The installation tool described in this publication is bulkier than a signal flame tube alone, and is inferior in transportability. Further, since an easily destructible material is used, there is a drawback that it is easily broken.

  Patent Document 2 and Patent Document 3 propose a road surface damage prevention body composed of a combustible heat insulating layer or a nonflammable heat insulating layer and a heat ray blocking layer. The road surface damage prevention body described in the publication is composed of a flammable material, a non-flammable material having flexibility, or a non-flexible easily destructible non-flammable material that breaks down when stepped on with a foot. When the flammable material is used, it is difficult to break and is easy to carry, but there is a possibility that the road surface may be burned by burning the flammable material. In addition, when a non-combustible material having flexibility such as phenol resin is used, the non-combustible material has good heat conduction. Therefore, it is processed into a cloth or cotton to increase the thickness, thereby transferring heat to the road surface. Although it has been devised to prevent it, it is also bulky and has the disadvantage of poor transportability. In addition, when using easily breakable incombustible materials such as silicon carbide and heat-resistant ceramic, there is a drawback that it is easy to break. Even if any of the above materials is used, there are advantages and disadvantages, small size and excellent transportability. Therefore, there has been a demand for a road flame damage prevention body for a signal flame tube that can effectively prevent the burnout of the road surface and is excellent in bending resistance and impact resistance.

JP 05-290281 A JP 2001-319277 A JP 2001-319278 A

  An object of the present invention is to provide a road flame damage prevention body for a signal flame tube that is small and excellent in transportability, can effectively prevent road burnout, and is excellent in bending resistance and impact resistance.

  As a result of diligent study, the inventor of the present invention has a road surface damage prevention body using a hydrophilic substance that has absorbed water in the heat insulating layer, has high heat insulating properties, and can effectively prevent the road surface from being burned out. The present inventors have found that the above-described problems can be solved with excellent performance and have completed the present invention.

  That is, the present invention relates to a high-temperature flame generated by combustion of a signal flame tube and a road surface damage prevention body for a signal flame tube that prevents the combustion residue from contacting the road surface, and the heat insulation layer of the road surface damage prevention body absorbs water. It is a signal flame tube road surface damage prevention body characterized by comprising a hydrophilic substance.

  In the present invention, the water-absorbed hydrophilic substance is a water-soluble natural polymer, cellulose derivative, sodium polyacrylate, polyacrylamide, polyacrylamine, polyethyleneimine, polyethylene oxide, polyethylene glycol, polyvinyl alcohol, polyvinylmethyl. A road flame damage prevention body for a signal flame tube, wherein water is absorbed in at least one selected from the group consisting of ether, polyvinyl pyrrolidone, and propylene glycol.

  Further, the present invention is a road flame damage prevention body for a signal flame tube, wherein the road surface damage prevention body comprises a rolling prevention means for the signal flame tube.

  Further, the rolling prevention means is any means in which the signal flame tube and the road surface damage prevention body are bonded or bundled, or the road surface damage prevention body is provided with a protruding stopper for preventing the signal flame tube from rolling. This is a road flame damage prevention body for a signal flame tube.

  Moreover, this invention is a road surface damage prevention body for signal flame tubes, wherein the signal flame tube mounting part of a road surface damage prevention body exhibits a concave shape.

  The road flame damage prevention body for a signal flame pipe according to the present invention is a road flame damage prevention body for a signal flame pipe that prevents the high temperature flame generated by combustion of the signal flame pipe and the combustion residue from contacting the road surface. The heat insulating layer is made of a hydrophilic substance that has absorbed water, and the heat insulating layer has a high heat insulating effect and can effectively prevent road surface burning such as asphalt, and the heat insulating layer can be made thin, so it is easy to carry and carry. In addition, it is not easily broken even when subjected to an impact such as bending or dropping, has excellent bending resistance and impact resistance, and is easy to handle.

  The road surface damage prevention body of the present invention is a high-temperature flame and combustion residue generated by the combustion of the signal flame tube when the signal flame tube is placed sideways on an asphalt-paved road surface such as an expressway. The road surface damage prevention body of the present invention is made of a hydrophilic substance absorbed by water in the heat insulating layer.

  Examples of the hydrophilic substances include casein, gelatin, starch, gum arabic, sodium alginate, carrageenan, agar, pectin, xanthan gum, guar gum, cyclidextrin, dulan gum, tamarind seed polysaccharide, tannic acid, tragacanth gum, far cerulean, pullulan, roast bean. Water-soluble natural polymer such as gum, cellulose derivatives such as sodium carboxymethylcellulose, carboxymethylcellulose nitrate, hydroxyethylcellulose, hydroxypropylcellulose, methylcellulose, polyacrylic acid soda, polyacrylamide, polyacrylamine, polyethyleneimine, polyethylene oxide, Polyethylene glycol, polyvinyl alcohol, polyvinyl methyl ether, polyvinyl chloride Pyrrolidone, propylene glycol and the like, is moderately water water these materials are used in the aqueous gel.

  The road surface damage prevention body of the present invention may be a plate-like body or a concave body in which the mounting portion of the signal flame tube has a concave shape, and is not particularly limited. Alone, it is difficult to maintain the shape as a road surface damage prevention body, or in order to prevent drying of hydrophilic substances, it is usually used packed in a container such as a bag or a box. For example, resin and paper can be used, and when paper is used, one that has been subjected to moisture resistance and moisture proofing is preferable.

  Hereinafter, the present invention will be described in detail with reference to the drawings. 1 to 3 are schematic views showing an embodiment of the road surface damage prevention body (plate body) of the present invention, and FIG. 4 is an embodiment of the road surface damage prevention body (concave body) of the present invention. It is the schematic which shows a form.

  The plate-like body shown in FIGS. 1 to 3 or the concave body shown in FIG. 4 may be used as the road surface damage prevention body of the present invention. When the shape is a concave body, the signal flame tube However, in the case of a plate-like body, the signal flame tube may roll off from the road surface damage prevention body due to wind, inclination, etc. preferable.

  Examples of the rolling prevention means include any means in which the signal flame tube and the road surface damage prevention body are bonded or bound, or the road surface damage prevention body includes a protruding stopper at both ends of the signal flame tube mounting portion. There is no particular limitation.

  The road surface damage prevention body of the present invention shown in FIG. 1 is provided with road surface damage prevention body 1 provided with means for preventing the rolling of a signal flame tube by adhesion, and the main body 3 of the signal flame tube having a lid 2 is attached to the adhesion layer. By sticking to 4 (for example, a double-sided adhesive tape, glue, etc.), a road surface damage prevention body and a signal flame pipe are fixed, and rolling of a signal flame pipe can be prevented.

  The road surface damage prevention body of the present invention shown in FIG. 2 is a road surface damage prevention body 1 provided with means for preventing signal flame tube rolling by bundling, and the signal flame tube main body 3 is attached to a bundling tool 5 (for example, an adhesive). By bundling with a tape or a rubber string, the road surface damage prevention body and the signal flame tube are fixed, and the signal flame tube can be prevented from rolling.

  The road surface damage prevention body of the present invention shown in FIG. 3 is provided with protruding stoppers that prevent the signal flame tube from rolling at both ends of the signal flame tube mounting portion of the road surface damage prevention body 1. The road surface damage prevention body is produced by mounting the plate-shaped road surface damage prevention body 1 on the U-shaped pedestal 6, and the protruding stopper made of the U-shaped pedestal 6 prevents the signal flame tube from rolling. can do. The U-shaped pedestal 6 can be produced using paper or resin.

  The road surface damage prevention body of the present invention shown in FIG. 4 is a concave body in which the signal flame tube mounting portion of the road surface damage prevention body 1 has a concave shape, and the signal flame tube mounting portion of the road surface damage prevention body is a concave shape. By doing so, both ends of the road surface damage prevention body serve as stoppers, and the rolling of the signal flame tube can be prevented.

  The road surface damage prevention body of the present invention may ignite the signal flame tube while the road surface damage prevention body and the signal flame tube are fixed in advance, or after the signal flame tube is ignited, the road surface damage prevention body It may be fixed or placed on the body. Further, the road surface damage prevention body of the present invention can be applied to a general signal flame tube. By pulling out the lid 2 of the signal flame tube, the rubbing drug paper provided in the lid body becomes a signal flame. It is used by rubbing and igniting the igniting agent of the pipe body, and then placing it sideways on the road surface with the road surface damage prevention body facing down.

  The road flame damage prevention body for a signal flame pipe according to the present invention is a road flame damage prevention body for a signal flame pipe that prevents the high temperature flame generated by combustion of the signal flame pipe and the combustion residue from contacting the road surface. The heat insulating layer is made of a hydrophilic substance that has absorbed water, and the heat insulating layer has a high heat insulating effect and can effectively prevent road surface burning such as asphalt, and since the heat insulating layer can be made thin, it is small and transportable. In addition, it is not easily broken even when subjected to an impact such as bending or dropping, has excellent bending resistance and impact resistance, and is easy to handle.

  EXAMPLES Hereinafter, although an Example demonstrates this invention, this invention is not limited at all by an Example.

Example 1
An aqueous gel in which 5 parts by mass of water is absorbed in 1 part by mass of sodium polyacrylate, which is a hydrophilic substance, is packed in a polyethylene bag, and then a double-sided tape is applied to the signal flame tube mounting part as shown in FIG. In addition, a road surface damage prevention body (360 mm × 50 mm × thickness 10 mm) was obtained.

  A signal flame tube (284 mm × 32 mm diameter) was attached to the obtained road surface damage prevention body. In the drop strength test, the road surface damage prevention body was dropped horizontally from the height of 1 m on the asphalt pavement surface, and the road surface damage prevention body was observed to be broken. In the road surface damage test, after the signal flame tube was ignited, the road surface damage prevention body was placed on the road surface with the road surface damage prevention body down, and after the signal flame tube burned, the degree of damage to the asphalt was observed. The results are shown in Table 1.

Example 2
After a water-based gel in which 5 parts by mass of water is absorbed in 1 part by mass of guar gum, which is a hydrophilic substance, is packed in a polyethylene bag, a binding tool using a paper adhesive tape (width 30 mm) is attached as shown in FIG. A road surface damage prevention body (360 mm × 50 mm × thickness 10 mm) was obtained.

  After attaching the signal flame tube similar to Example 1 to the obtained road surface damage prevention body, the drop strength test and the road surface damage test were done like Example 1. The results are shown in Table 1.

Comparative Example 1
A cardboard paper (360 mm × 50 mm × thickness 10 mm) was attached with a binding tool using a paper adhesive tape (width 30 mm) as shown in FIG. 2 to obtain a road surface damage prevention body.

  After attaching the signal flame tube similar to Example 1 to the obtained road surface damage prevention body, the drop strength test and the road surface damage test were done like Example 1. The results are shown in Table 1.

Comparative Example 2
A small amount of glue is added to pearlite, molded into a plate shape (360 mm x 50 mm x thickness 20 mm), dried, and then attached with a paper adhesive tape (width 30 mm) as shown in Fig. 2 to damage the road surface. The prevention body was obtained.

  After attaching the signal flame tube similar to Example 1 to the obtained road surface damage prevention body, the drop strength test and the road surface damage test were done like Example 1. The results are shown in Table 1.

  As shown in Table 1, the road surface damage prevention body of the present invention (Examples 1 and 2) was excellent in drop strength and could burn the signal flame tube without damaging the road surface. The road surface damage prevention body of Comparative Example 1 using corrugated paper is excellent in drop strength, but in the road surface damage test, a burn mark remains on the road surface due to the combustion of the cardboard. Moreover, although the road surface damage prevention body of the comparative example 2 using pearlite did not have road surface damage, it resulted in being inferior to drop strength.

  The signal flame pipe road surface damage prevention body of the present invention is made of a hydrophilic substance absorbed by the heat insulating layer, and the heat insulating layer has a high heat insulating effect, such as asphalt due to a high temperature flame generated from the signal flame pipe and combustion residue. The road surface can be effectively prevented from being burnt down, and the heat insulation layer can be made thin, so it is compact and easy to carry. In addition, it is not easily broken even when subjected to impacts such as bending or dropping, and is flexible and impact resistant. Excellent in handling and easy to handle.

It is the schematic which shows one Embodiment of the road surface damage prevention body (plate-shaped body) of this invention. It is the schematic which shows one Embodiment of the road surface damage prevention body (plate-shaped body) of this invention. It is the schematic which shows one Embodiment of the road surface damage prevention body (plate-shaped body) of this invention. It is the schematic which shows one Embodiment of the road surface damage prevention body (concave body) of this invention.

Explanation of symbols

1 Road surface damage prevention body 2 Signal flame tube lid 3 Signal flame tube body 4 Adhesive layer 5 Binder 6 U-shaped base

Claims (5)

In a road flame damage prevention body for a signal flame pipe that prevents contact between a high temperature flame generated by combustion of a signal flame pipe and combustion residue and a road surface, the heat insulation layer of the road surface damage prevention body is made of a water-absorbed hydrophilic substance. A road surface damage prevention body for a signal flame tube. Water-absorbed hydrophilic substance is water-soluble natural polymer, cellulose derivative, polyacrylic acid soda, polyacrylamide, polyacrylamine, polyethyleneimine, polyethylene oxide, polyethylene glycol, polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, propylene The road flame damage prevention body for a signal flame tube according to claim 1, wherein water is absorbed in at least one selected from the group consisting of glycol. A road surface damage prevention body for a signal flame pipe according to claim 1, wherein the road surface damage prevention body comprises a signal flame pipe rolling prevention means. The rolling prevention means is any means that bonds or binds the signal flame tube and the road surface damage prevention body, or includes a protruding stopper that prevents the signal flame tube from rolling on the road surface damage prevention body. The road flame damage prevention body for a signal flame tube according to claim 3. The signal flame tube road surface damage prevention body according to claim 1 or 2, wherein the signal flame tube mounting portion of the road surface damage prevention body has a concave shape.

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