JP7021112B2 - Fusee - Google Patents

Description

The present invention relates to a fusee having a function of protecting a road surface such as asphalt from a high-temperature flame or combustion residue generated by combustion of the fusee.

The fusee is used to notify a road worker that an accident has occurred in a following vehicle due to a high-intensity flame generated by the combustion of explosives when an accident or the like occurs on a highway or the like. Such a fusee is used by rubbing and igniting an igniting agent provided in its main body with a rubbed paper to generate flame and smoke, and then placing it on a road surface.

However, when the flames and combustion residues generated from the fusee reach a maximum temperature of several hundred degrees Celsius and are burned while being placed sideways on the road surface, the asphalt in contact with the residues burns out and holes are formed in the road surface. Generates an open state. If the road surface is left in this state, the holes will become larger with the passage of time due to the impact of the tires of the traveling vehicle and the weathering action due to wind and rain. Had had.

In order to solve the above problems, Patent Documents 1 to 4 include a plate-shaped road surface damage preventive body provided with a heat insulating layer to which a signal flame tube is attached in order to prevent contact between the combustion residue and the road surface. It has been disclosed.

However, since these fusees have a fusee tube attached to a plate-shaped damage preventive body, they are bulky during storage and have problems in terms of portability, so 5 to 10 fusees at a time, in particular. It was unsuitable for road work where it was necessary to handle a degree of fusee at the same time.

In addition, some of these damage prevention bodies are attached in advance before ignition and some are attached after ignition, but in each case, the procedure for using them is large and complicated.

Further, when these damage preventive bodies are used, there is a problem that the amount of combustion residue other than the fusee main body increases and the recovery work takes time.

JP 2001-319277 JP 2001-319278 JP-A-2005-301676 JP-A-2004-164021

Therefore, the present invention overcomes the drawbacks of the conventional fusee, has a sufficient road surface protection function, is easy to store, is excellent in portability and usability, and can minimize combustion residue. The issue is to provide a flame tube.

The present invention solves the above-mentioned problems, and is a fusee that is installed on a road surface and notifies the occurrence of an accident by a high-luminance flame generated by combustion of explosives, and is on the outer peripheral surface on the side in contact with the road surface at the time of installation. Is a fusee characterized by forming a fireproof paint layer.

Further, the present invention is a signal flame tube characterized in that the resin component contained in the fire resistant paint layer foams due to the combustion heat of the signal flame tube to form a road surface damage protection layer.

Further, the present invention is a fusee, wherein the refractory paint layer is formed by attaching a sheet-like base material coated with the refractory paint to the outer peripheral surface of the fusee main body. be.

The fusee having a fireproof paint layer formed on the outer peripheral surface of the main body according to the present invention is excellent in usability because it does not require the attachment of a member such as a damage preventive body, and is easy to store and carry. After combustion, all of them are incinerated and carbonized, so the combustion residue can be significantly reduced.

Further, in the signal flame tube according to the present invention, the resin component contained in the fire-resistant paint layer foams due to the combustion heat of the signal flame tube to form a road surface damage protection layer, and the foamed fire-resistant paint layer forms the road surface and the signal flame tube main body. Since it is possible to prevent direct contact with the vehicle, it is possible to enhance the road surface damage prevention function.

Further, in the signal flame tube according to the present invention, in which a sheet-like base material on which a fireproof paint layer is formed is attached to a signal flame tube main body, a signal flame tube having a fireproof paint layer formed can be easily obtained. can.

Perspective view of the fusee according to the present invention as viewed from the bottom surface side in contact with the road surface. (A) A diagram schematically showing a state in which the fusee of the present invention is placed on a road surface, and (b) a diagram schematically showing a state of the fusee of the present invention at the time of combustion.

Hereinafter, embodiments of the fusee of the present invention will be specifically described with reference to the drawings. The present invention is not limited to these embodiments.

FIG. 1 is a perspective view of the fusee of the present invention as viewed from the bottom surface side in contact with the road surface. The fusee used in the present invention may be a general cylindrical one. Further, in the present embodiment, in order to prevent the fusee tube placed on the road surface from rolling, a rolling prevention member 4 formed in a substantially U shape is exteriorized on the outer peripheral surface 11 of the fusee main body 1. However, the rolling prevention means is not limited to this, and other rolling prevention members may be used.

As shown in the figure, a refractory paint layer 3 is provided on the outer peripheral surface 11 of the cylindrical signal flame tube main body 1. The fireproof paint layer 3 is formed on at least the outer peripheral surface 11 on the side in contact with the road surface during use. In a general fusee, the side that comes into contact with the road surface during use is not particularly determined. Therefore, the refractory paint layer 3 may be formed on an arbitrary outer peripheral surface 11 of the fusee main body 1, and the refractory paint layer 3 may be formed on an arbitrary outer peripheral surface 11 of the fusee main body 1. The paint layer 3 may be installed so as to be on the road surface side.

When the signal flame tube is not used, the lid 2 is attached to the tip end side thereof, but the refractory paint layer 3 is also formed on the outer peripheral surface 11 of the signal flame tube main body 1 covered by the lid 2. There is. More specifically, the refractory paint layer 3 is formed so as to extend along the axial direction on the outer peripheral surface 11 of the fusee main body 1, but is completely formed to the front end and the rear end of the fusee main body 1. It may not be necessary, and as shown in the figure, some portions that do not form the refractory paint layer 3 may be left on the front end side and the rear end side.

FIG. 2A is a diagram schematically showing a state in which the fusee of the present invention is placed on a road surface. In this figure, drawings of members unnecessary for explanation such as the lid 2 and the rolling prevention member 4 are omitted. As shown in the figure, the refractory paint layer 3 is formed over an arbitrary range from the portion 12 in contact with the road surface at the time of installation to the outer peripheral surface 11 of the fusee main body 1. Specifically, it may be formed at least within a range that prevents contact with the road surface during combustion and does not impair the visibility of the flame, and is 10 of the total outer peripheral area of the fusee tube body 1 centered on the portion 12 in contact with the road surface. It is preferably formed in the range of about 50%, and more preferably formed in the range of 30 to 40%.

FIG. 2B is a diagram schematically showing a state of the fusee of the present invention at the time of combustion. As shown in the figure, the fusee tube main body 1 becomes a residue 13 melted by combustion, and the fireproof paint layer 3 foams due to combustion heat to become a road surface damage prevention layer 31. The road surface damage prevention layer 31 becomes a substantially half-moon-shaped wall in cross section carbonized or incinerated by heat, and the substantially half-moon-shaped road surface damage prevention layer 31 serves as a saucer to prevent the residue 13 from leaking onto the road surface. can. Since most of the flame during combustion rises above the substantially half-moon-shaped road surface damage prevention layer 31, the visibility of the flame is not impaired.

In the present invention, the fire-resistant paint forming the fire-resistant paint layer 3 contains a resin component that foams due to combustion heat of about 250 to 300 degrees, and a fire-resistant paint used for building materials and the like can be used. Specifically, SK Taika Coat main material EX, SK water-based Taika Coat (all manufactured by SK Kaken Co., Ltd., "SK Taika Coat" is a registered trademark), Taikarit (manufactured by Nippon Paint Co., Ltd., "Tikarit" is a registered trademark), Wester (Kikusui Chemical Industry Co., Ltd., "Westa" is a registered trademark), Nullifier System S, Nullifier Hybrid Base Coat (all manufactured by Nullifire, "NULLIFIRE" is a registered trademark) and the like can be preferably used.

The refractory paint layer 3 may be formed to have a thickness sufficient to have a road surface damage protection function at the time of foaming, and is preferably formed to a thickness of 100 μm to 2 mm. By forming the thickness of the fireproof paint layer 3 in such a range, the residue after burning the fusee can be minimized, and even if the residue on the road remains, it is carbonized and ashed to the vehicle. Does not interfere with the running of the worker or the walking of the worker. Further, since the signal flame tube on which the refractory paint layer 3 is formed does not undergo a major change in its original shape, outer dimensions, etc., there is no risk of mounting a ready-made rolling prevention member or causing a problem in the ignition mechanism.

The fire-resistant paint layer 3 may be formed by directly applying a fire-resistant paint to the outer peripheral surface 11 of the signal flame tube main body 1, but it may be formed by applying it to one surface of a sheet-shaped base material, and the base material is formed on the outer peripheral surface. It may be formed by sticking it on the surface 11. By using the refractory paint layer 3 as the sheet-like base material in this way, the drying time can be shortened as compared with the case where the refractory paint is directly applied to the fusee tube main body 1. Further, by forming the sheet-like base material in advance in a four-layer structure of a base material, a refractory paint, an adhesive, and a release paper, the work of attaching to the outer peripheral surface 11 can be further simplified, which is preferable.

Next, the present invention will be described in more detail with reference to examples.

(Example 1)
A sheet with a fire-resistant paint layer is provided by applying and drying a fire-resistant paint on paper as a base material (SK Taika Coat main material EX, "SK Taika Coat" is a registered trademark) to a thickness of 300 μm and attaching double-sided tape. A substrate (260 mm × 40 mm × thickness 500 μm) was obtained. The obtained sheet-like substrate was attached to the main body of the fusee tube (284 mm × φ32 mm) so as to be wound around half a circumference to obtain a fusee tube provided with a refractory paint layer. Table 1 shows the results of the drop strength test, road surface damage test, and observation of combustion residue.

One hand held the fusee with a fireproof paint layer, and the other hand could easily pull out the fusee lid and ignite. At that time, the refractory paint layer did not fall off. After that, the refractory paint layer was placed so as to be in contact with the road surface of the high-performance asphalt. After the combustion of the fusee was completed, it became finer when the carbonized or ashed road surface damage prevention layer was stepped on.

In the drop strength test, the refractory paint layer was dropped horizontally on the road surface from a height of 1 m on the asphalt pavement, and the degree of damage to the refractory paint layer was observed.

In the road surface damage test, after igniting the fusee, the fireproof paint layer was placed on the road surface with the fireproof paint layer facing down, and after the combustion of the fusee was completed, the combustion residue was collected and the damage condition of the road surface was observed. In addition, the road surface damage prevention layer that remained on the road surface without being carbonized or ashed was observed as a residue.

(Example 2) A signal flame tube provided with a fire-resistant paint layer by applying a fire-resistant paint to the main body of the signal flame tube (SK Taika coat main material EX, "SK Taika coat" is a registered trademark) and drying it to a thickness of 1 mm. Got Table 1 shows the results of the drop strength test, road surface damage test, and observation of combustion residue.

One hand held the fusee with a fireproof paint layer, and the other hand could easily pull out the fusee lid and ignite. At that time, the refractory paint layer did not fall off. After that, the refractory paint layer was placed so as to come into contact with the road surface. After the combustion of the fusee was completed, it became finer when the road surface damage prevention layer was stepped on.

(Comparative Example 1) A fusee tube for which no measures were taken to prevent road surface damage was ignited and placed on the road surface. Table 1 shows the results of the drop strength test, road surface damage test, and observation of combustion residue.

(Comparative Example 2)
A small amount of glue was added to pearlite, molded into a plate shape (360 mm × 50 mm × thickness 20 mm), and dried to obtain a road surface damage preventive body. A double-sided tape was attached to the fusee installation part to obtain a fusee having a road surface damage prevention function. Table 1 shows the results of the drop strength test, road surface damage test, and observation of combustion residue.

(Comparative Example 3) A laminated body of aluminum foil and a resin film was molded into a plate shape (360 mm × 50 mm × thickness 20 mm) to obtain a road surface damage preventive body. A double-sided tape was attached to the fusee installation part to obtain a fusee having a road surface damage prevention function. Table 1 shows the results of the drop strength test, road surface damage test, and observation of combustion residue.

落下試験
○：割れなかった
×：２つ以上に割れた

路面損傷防止試験
○：路面損傷無し
×：路面損傷範囲が信号炎管側面の面積(３９cm²)の半分以上

燃焼残存物の観察
○：路面損傷防止層（防止体）の体積の全てが炭化又は灰化した
×：路面損傷防止層（防止体）の体積の５割以上が炭化又は灰化せずに残っ
た

Drop test ○: Not broken ×: Broken into two or more

Road surface damage prevention test ○: No road surface damage ×: Road surface damage range is more than half of the area of the side surface of the fusee (39 cm ² )

Observation of combustion residue ○: All the volume of the road surface damage prevention layer (prevention body) was carbonized or incinerated ×: 50% or more of the volume of the road surface damage prevention layer (prevention body) remained without carbonization or incineration rice field

As shown in the above results, the fusee tube (Examples 1 and 2) provided with the refractory paint layer of the present invention has excellent drop strength and can be used without the need for a mounting process, etc., due to combustion of the fusee tube. The damage to the road surface could be reduced.

The fusee of the present invention is provided with a road surface damage prevention layer made of a foamable fire-resistant paint, the carbonized or ashed layer formed by heat has an excellent heat insulating effect, and asphalt due to adhesion of combustion residue generated from the fusee. Can effectively prevent peeling. In addition, since the heat insulating layer (fireproof paint layer) can be thinned in the unfoamed state, it is excellent in portability, is not easily broken even if it receives an impact such as dropping, and does not require a mounting operation during use. Easy to handle.

1 ……… Signal flame tube body 2 ……… Lid
3 ……… Fire-resistant paint layer 4 ……… Rolling prevention member 11 ……… Outer peripheral surface 12 ……… Parts in contact with the road surface 13 ……… Residue 31 ……… Road surface damage prevention layer

Claims (5)

A fusee that is installed on the road surface and notifies the occurrence of an accident by a high-luminance flame generated by the combustion of explosives, and is characterized by forming a fire-resistant paint layer on the outer peripheral surface on the side in contact with the road surface at the time of installation. Flame tube. The signal flame tube according to claim 1, wherein the resin component contained in the fire-resistant paint layer foams due to the combustion heat of the signal flame tube to form a road surface damage prevention layer. The signal flame tube according to claim 1 or 2, wherein the refractory paint layer is formed in a range of 10 to 50% of the total area of the outer periphery of the signal flame tube centering on a portion in contact with the road surface. The signal flame tube according to any one of claims 1 to 3, wherein the refractory paint layer is formed in a thickness of 100 μm to 2 mm. Any one of claims 1 to 4, wherein the refractory paint layer is formed by adhering a sheet-shaped base material coated with the refractory paint to the outer peripheral surface of the main body of the signal flame tube. The fusee described in.

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