JPH0144581Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an anti-glare net placed on a road median strip or the like.

Tree planting, special metal wire mesh (commonly known as expanded metal), and plastic anti-glare panels have been used as anti-glare devices installed in median strips on expressways, etc., but these various anti-glare devices require maintenance. There were disadvantages such as an increase in costs, an increase in the number of locations where installation was impossible due to the narrowing of the median strip itself, and an increase in installation costs.

Therefore, especially for use in warm regions where there is no risk of snow damage,
In recent years, a net made of synthetic resin wire has been proposed (Utility Model Publication No. 53-28993). According to this net,
By completely blocking the light of oncoming vehicles, it prevents dazzling, and because of its moderate ventilation, it has the advantage of not being exposed to large wind pressure even in strong winds. However, since this net is made of synthetic resin, its weather resistance and puncture resistance are still insufficient, and since it is a combustible material, there was a concern that it could catch fire from car fires, wild fires, etc. Another drawback was that the net would sag during long-term use due to stretching and slippage.

Therefore, an object of the present invention is to provide an anti-glare net that blocks out the light of oncoming vehicles, has wind resistance, and has sufficient strength, durability, and nonflammability.

The anti-glare net of the present invention is substantially made of woven glass fiber, and consists of multiple wire rods running horizontally and multiple wire rods running vertically, and the intersections of these wire rods are covered with flame-retardant resin. It is attached and fixed.
The wire rods running in the horizontal direction are made up of at least reinforcing bands arranged above and below and holding lines arranged at predetermined intervals between the reinforcing bands, and the wire rods running in the vertical direction are arranged at predetermined intervals. It consists of thick yarns and fine yarns arranged between the thick yarns.

Therefore, the light from the headlights of oncoming cars is blocked by the multiple wire rods running in the vertical direction of the net, preventing dazzling. Also, in the case of strong winds, the wind pressure is reduced by the ventilation of the net. Furthermore, since the material is glass fiber, it has excellent weather resistance, durability, and nonflammability, and the intersection of the horizontal wire and the vertical wire is fixed with flame-retardant resin. Each wire rod does not shift, elongate, bend, etc., and has sufficient strength.

In addition, the main strength and light blocking properties are provided by the horizontal reinforcing band and the vertical thick thread.
The horizontal retaining lines and the vertical fine-count yarns provide additional light-shielding properties and provide firmness to the texture of the fabric. If the net is made only of wires with a large diameter, it will tend to shift and the structure will collapse.On the other hand, if the net is made only of wires with a small diameter, it will not have sufficient light-shielding properties. I can't get it. Therefore, the present invention uses a wire rod with a large diameter and a wire rod with a small diameter in combination to obtain both sufficient light-shielding properties and a durable structure.

As a preferable specific example of the above-mentioned network,
The reinforcing band consists of selvedges of the fabric, the retention line and fine count yarn consist of yarn or roving of 22 to 816 tex, the thick yarn consists of roving of 575 to 6900 tex, and the thickness of the retention line and fine count yarn and the thick yarn For example, the ratio of the thickness to the thickness is 1:2 to 1:30.

In order to block the light from the headlights of oncoming vehicles without causing any practical problems, and to provide sufficient strength,
The arrangement density of the thick and fine yarns that make up the vertical wire is 1 to 5 threads/25mm, and the number ratio of the thick and thin threads is 1: (1 to 20). It is preferable. If the array density is less than this, it will be difficult to sufficiently block the light from oncoming vehicle lights, and if the array density is greater than this, there will be disadvantages such as increased weight and reduced wind resistance. arise. On the other hand, if the ratio of the number of thick yarns exceeds the above ratio, ventilation will be poor, resulting in poor wind resistance, and if the ratio of the number of fine yarns exceeds the above ratio, it will be difficult to obtain effective light-shielding properties. .

In the present invention, examples of the flame-retardant resin used to fix the intersections of the wires include silicone resin, fluororesin, and chloroprene. By using such a flame-retardant resin, it is possible to prevent the spread of fires in median strips, such as ignition when vehicles come into contact with each other, or wildfires caused by improperly disposed of cigarettes. Note that this flame-retardant resin may be coated on the entire surface of the net.

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

As shown in FIG. 1, an anti-glare net 11 embodying the present invention is mainly made of glass fiber rovings and yarns woven in the direction A in the figure. At both ends and in the center of the fabric, selvages are formed by weaving each wire rod with a woven fabric or a combination of a woven fabric and a plain weave, and these selvedges form a relatively wide reinforcing band 12 running horizontally. ing. The reinforcing band 12 provides strength against lateral tensile force when the anti-glare net 11 is stretched. Although the reinforcing bands 12 are provided at least on the top and bottom, a large number of reinforcing bands 12 may be formed at predetermined intervals, and in this case, the intervals are preferably 50 mm or more. If the spacing is less than 50 mm, the layers will be too dense and sufficient wind resistance will not be achieved. Reinforcement band 12
A holding line 13, which also runs in the horizontal direction, is provided at the interval between. The holding wire 13 connects vertical wire rods to be described later to tighten the tissue. The holding lines 13 are arranged such that two adjacent lines form a set and are spaced apart from each other by a predetermined distance. The interval between each set of holding lines 13 is about 10 to 50 mm, and the interval between two lines forming a set is about 2 to 5 mm.

A thick thread 14 and a thin thread 15 are provided perpendicularly to the reinforcing band 12 and the holding line 13. The thick yarn 14 provides tensile strength in the vertical direction and serves as a main member for blocking light from oncoming vehicle lights, and the fine yarn 15, together with the holding line, tightens the structure of the fabric. The number ratio of the thick yarn 14 and the fine yarn 15 is 1: (1 to 20) (1: in the figure).
9), thick threads 14 are provided at intervals of 10 to 525 mm,
Fine count threads 15 are provided between them at intervals of 5 to 25 mm.

The holding line 13 and the fine count yarn 15 are made of yarns or rovings of 22 to 816 tex, and the thick yarn 1
4 is made of roving of 575 to 6900 tex, and the ratio of the thickness of the retaining line 13 and the thin yarn 15 to the thickness of the thick yarn 14 is 1:2 to 1:30.

Reinforcement strip 12 and retention line 13 running horizontally
The intersection point between the thick yarn 14 and the fine yarn 15 running in the vertical direction is woven with a sandpaper weave, as shown in FIG. 2, for example, but a combination of a sando weave and a plain weave may be used. Therefore, in reality, the anti-glare net 11 is woven by weaving the reinforcing band 12, such as a wire such as yarn or roving, and the retaining wire 13 as the warp threads, and the thick thread 14 and the fine thread 15 as the weft threads. is formed.

The anti-glare net 11 is made by tensioning the glass fiber fabric thus formed using a tenter frame, applying flame retardant resin under that condition and curing it, and then attaching the reinforcing band 12 and the holding wire 13 to the thick It is made by fixing at least the points of intersection with the count thread 14 and the fine count thread 15 with resin. In this case, the structure of the woven fabric is held firm by the holding lines 13 and the fine threads 15 as described above, so
The tenter frame can prevent each wire rod from shifting or stretching when it is under tension.

Therefore, this anti-glare net 11
2 and the thick yarn 14 provide tensile strength in the horizontal and vertical directions, and the retention line 13
The structure of the fabric is strengthened by the fine count yarns 15. Since at least the intersections of the wire rods are fixed with flame-retardant resin, deformation or bending due to displacement is prevented, resulting in an extremely strong structure. Furthermore, since the material is glass fiber, it has excellent weather resistance, durability, and nonflammability.

By installing the anti-glare net 11 on poles etc. erected at predetermined intervals in the median strip of the road, the light from the headlights of oncoming cars is transmitted through the thick thread 14 and the thin thread 15. This prevents dazzling. In addition, since the retention line 13 and the fine yarn 15 that strengthen the structure are provided between the reinforcing band 12 that imparts tensile strength and the thick yarn 14, good ventilation is achieved while maintaining the strength. As a result, even in strong winds, it does not receive large wind pressure,
Provides sufficient wind resistance.

In the embodiments described above, all the wires of the anti-glare net 11 do not necessarily have to be made of glass fiber, and synthetic fibers or the like may be partially used.

As explained above, according to the present invention, tensile strength in the horizontal and vertical directions is imparted by the reinforcing band and the thick yarn, the structure of the fabric is strengthened by the retention line and the fine yarn, and the fabric is It is less likely to cause misalignment when stretched on a tenter frame. Furthermore, since at least the intersection points of each wire rod are fixed with flame-retardant resin, deformation or bending due to displacement is prevented, resulting in an extremely strong structure. By using a thick yarn and a fine yarn in combination, it is possible to improve ventilation and provide excellent wind resistance without reducing the ability to block light from oncoming vehicle lights.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the road anti-glare net of the present invention, and FIG. 2 is a partially enlarged view of the same road anti-glare net. In the figure, 11 is an anti-glare net for roads, 12 is a reinforcing band, 13 is a holding line, 14 is a thick yarn, and 15 is a fine yarn.

Claims (1)

[Claims for Utility Model Registration] (1) Substantially made of woven glass fiber, consisting of a plurality of wire rods running horizontally and a plurality of wire rods running vertically, the intersections of these wire rods are flame-retardant. The wire rod, which is fixed by resin and runs in the horizontal direction, includes at least reinforcing bands arranged above and below, and holding lines arranged at predetermined intervals between the reinforcing bands, and runs in the vertical direction. The wire rod is an anti-glare net made of thick threads arranged at predetermined intervals and thin threads arranged between the thick threads. (2) Utility model registration In claim 1, the reinforcing band is made of the selvage of the fabric, the retaining line and the fine thread count are made of yarn or roving of 22 to 816 tex, and the thick thread is 575 tex.
An anti-glare net comprising a roving of ~6900 tex, wherein the holding line and the ratio of the thickness of the fine count yarn to the thickness of the thick yarn are 1:2 to 1:30. (3) In claim 1 or 2 of the utility model registration claim, the arrangement density of the thick yarn and the fine yarn is 1 to 5 yarns/25 mm, and The number ratio is 1: (1 to 20)
An anti-glare net.