JP7336978B2 - Pole cover for cable guard fence - Google Patents

Description

TECHNICAL FIELD The present invention relates to a post cover for a cable-type protective fence.

Guard fences are provided to prevent vehicles from straying from the road lanes. As a kind of protective fence, a cable type protective fence (also called a wire rope type protective fence) in which a plurality of cables are passed between posts is known. For example, Patent Literature 1 discloses a cable-type protective fence and a post used for a cable-type protective fence.

In the technique disclosed in Patent Document 1, by equipping the base of the support with a tilting direction guide member that makes it easy for the support to tilt in a specific direction, the asphalt pavement is not destroyed in the event of a vehicle collision, and the protrusion amount of the vehicle is reduced. It is possible to suppress the bending support from protruding to the roadway side while reducing the

JP 2019-44512 A

From the viewpoint of suppressing vehicle deviation from the road and vehicle contact with the protective fence, it is desirable to improve the visibility of the cable-type protective fence, especially at night. Therefore, technology for attaching reflective materials to cable-type protective fences is being studied.

SUMMARY OF THE INVENTION An object of the present invention is to provide a post cover for a cable-type protective fence with high safety. Another object of the present invention is to improve the visibility of the column cover.

As a result of intensive studies, the inventor found that a column cover capable of solving at least one of the above problems can be obtained by forming the cover body of the column cover by wrapping a belt-shaped non-woven fabric with a water-impermeable synthetic resin sheet. and completed the present invention.

The present invention is a post cover to be attached to a post of a cable-type protective fence, wherein the post cover has a flexible cover body, and the cover body is made of a rectangular non-woven fabric made of water-impermeable synthetic resin. The synthetic resin sheet is wrapped in a tube made of a synthetic resin sheet so that water outside the tube does not reach the nonwoven fabric. It is a post cover of a cable-type protective fence enclosed in a tube of the synthetic resin sheet (first invention).

In addition, in the first invention , preferably, the column cover has a reflector layer laminated and integrated with the outer surface of the cover body ( second invention). In addition, in the first invention , hook-and-loop fasteners that can be engaged with each other are preferably integrated with both ends of the cover body ( third invention).

According to the post cover of the cable-type protective fence of the present invention (first invention), the cover body is a rectangular non-woven fabric wrapped in a tube of a non-permeable synthetic resin sheet, and water outside the tube is absorbed by the non-woven fabric. Since the column cover is configured so as not to reach the , the column cover becomes very lightweight, and is prevented from becoming heavy due to absorption of rainwater or the like. If the cover is lightweight, even if the cover separates from the pillar when it comes into contact with a vehicle, and the cover scatters and hits another object, secondary damage caused by the cover is less likely to occur, improving safety. Increased.

Furthermore, as in the first invention , the synthetic resin sheet is airtight, and if a predetermined amount of air is enclosed in the tube of the synthetic resin sheet together with the nonwoven fabric, visibility and safety can be improved. It is also possible to obtain the effect that the strength and durability are further improved.

In addition, according to the support post cover of the second invention, the reflector layer can be attached so as to surround the support post, thereby enhancing visibility particularly at night. Furthermore, if the third aspect of the invention is used, even if the support column cover is wet, it can be easily attached to the support column, thereby improving workability of the support column cover.

1 is a plan view, an XX cross-sectional view, and a YY cross-sectional view showing the structure of a post cover of the cable-type protective fence of the first embodiment. FIG. It is a schematic diagram of the process of attaching the support|pillar cover of the cable type protective fence of 1st Embodiment to a support|pillar. It is sectional drawing which shows the state by which the support|pillar cover of the cable type protective fence of 1st Embodiment was attached to the support|pillar.

EMBODIMENT OF THE INVENTION Embodiment of invention which concerns on the support|pillar cover of a cable-type protective fence is described below, referring drawings. The invention is not limited to the individual embodiments shown below, and can be implemented by changing the form.

FIG. 1 is a front view, XX cross-sectional view, and YY cross-sectional view showing the structure of a post cover 1 of a cable-type guard fence according to the first embodiment. In FIG. 1, in order to make the structure easier to see, the thicknesses and gaps of the members in the sectional view are slightly exaggerated.

The column cover 1 has a cover body 11 . Although not essential, the post cover 1 preferably further comprises a reflector layer 13 . In this embodiment, the reflector layer 13 is laminated and integrated with the outer surface of the cover body 11 . The means for integrating the reflector layer 13 may be adhesion, welding, stitching, locking with a locking member, or the like, and is not particularly limited. The reflector layer 13 may be formed directly on the outer surface of the cover body 11 by applying a reflective paint to the cover body.

Although not essential, the reflector layer 13 is preferably composed of a sheet-like reflector in which the reflector is arranged between the substrate layer and the surface protective layer. Moreover, it is particularly preferable that the reflector layer 13 has retroreflectivity. Such a sheet-like reflective material may be commercially available as a reflective tape or a reflective sheet.

When the reflector layer 13 is not provided, it is preferable to color the cover main body fluorescent orange, yellow, yellow-green, white, or the like to enhance the visibility of the column cover.

The cover body 11 is flexible enough to be bent by hand. Utilizing the flexibility of the cover body 11, the post cover 1 is deformed so as to be wound around the post of the cable type protective fence and attached to the post. One column cover 1 may be wound around the column, or two or more column covers 1, 1 may be connected and wound around the column.

The cover body 11 is constructed by wrapping a rectangular non-woven fabric 14 in a tube 15 of a non-permeable (that is, impermeable) synthetic resin sheet. The size of the cover main body 11 and the non-woven fabric 14 is set to the length and width corresponding to the size of the support surface to be covered by the cover 1 .
The cover body 11 is configured such that the nonwoven fabric 14 is wrapped in the tube 15 so that water (for example, rain water, muddy water, etc.) existing outside the tube 15 does not reach the nonwoven fabric 14 .

The thickness of the nonwoven fabric 14 included in the cover body 11 is preferably 5-30 mm, more preferably 8-20 mm. The material of the nonwoven fabric is not particularly limited, and may be a synthetic resin fiber, or a nonwoven fabric of synthetic fibers or natural fibers. Inside the cover body 11 , the tube 15 and the nonwoven fabric 14 may be in close contact, but there may be a gap between the tube 15 and the nonwoven fabric 14 .

Examples of the water-impermeable synthetic resin sheet forming the tube 15 include a soft vinyl chloride sheet and a synthetic resin sheet such as a polyurethane resin sheet. The type of resin is not particularly limited as long as it is impermeable to water. Moreover, the level of water impermeability may be such that water in the form of liquid or droplets does not pass through the sheet. The synthetic resin sheet may be a so-called solid sheet that does not have holes, cuts, air bubbles, etc. in the sheet, but it may be a porous sheet or a fibrous sheet (nonwoven fabric, cloth, etc.) having air bubbles. may When the sheet is porous, the sheet may be impermeable to water by, for example, applying sealing treatment to the surface or applying water-repellent treatment to the sheet. In this embodiment, the tube 15 is made of a soft vinyl chloride resin sheet.

The means for forming the synthetic resin sheet into the tube 15 is not particularly limited, and the synthetic resin sheet may be extruded into a tubular shape when it is formed into a sheet. Alternatively, both side edges of a synthetic resin sheet manufactured in a belt shape may be joined together by adhesion or welding to form a tubular shape.

Although not essential, both ends of the tube 15 that wraps the nonwoven fabric 14 are preferably sealed by adhesion or welding to prevent water from entering or exiting. In this embodiment, both ends of the tube 15 are welded and sealed, and attachment portions 16, 16 are formed by overlapping and welding the sheets.

Although not essential, the synthetic resin sheet is airtight, and a predetermined amount of air is preferably enclosed in the tube 15 of the synthetic resin sheet together with the nonwoven fabric 114 .

Although it is not essential, if double-faced tape or hook-and-loop fasteners are provided on the mounting portions 16, 16, the mounting work will be efficient. It is particularly preferable that hook-and-loop fasteners 17, 17 are integrated with both ends of the cover body 11 so as to be lockable with each other. Holes may be made in the mounting portions 16, 16 and the mounting portions may be mounted using bolts, strings, wires, or the like. Hook-and-loop fasteners 17, 17 are attached to the mounting portions 16, 16 of the column cover 1 of this embodiment.

A manufacturing method of the support column cover 1 is not particularly limited, and it can be manufactured by applying a known manufacturing technique. For example, a soft vinyl chloride sheet molded into a long sheet of a predetermined width is prepared, the strip-shaped soft vinyl chloride sheet is rolled into a cylinder, and both side edges are overlapped and adhered to obtain the tube 15 . can be done. The tube 15 is cut to a predetermined length, and the nonwoven fabric 14 molded to a predetermined length, width, and thickness is placed in the tube 15, and the openings on both sides of the tube 15 are closed and attached by bonding. The parts 16, 16 are formed, and the cover main body 11 is manufactured. By attaching a sheet-like reflective material to one surface of the cover main body 11 to form the reflective material layer 13 and integrating the hook-and-loop fasteners 17, 17 to the mounting portions 16, 16, the column cover 1 of the above-described embodiment can be manufactured.

The post cover 1 is used by being attached so as to cylindrically cover the outer periphery of the post of the cable-type protective fence. FIG. 2 shows part of the process of attaching the post cover 1 to the post of the cable-type protective fence. In the cable-type protective fence, a plurality of (three in the example of FIG. 2) cables C1, C2, and C3 are stretched between poles P at predetermined intervals in the vertical direction. FIG. 2 shows the circumference of one pole P. As shown in FIG.

The column cover 1 is, for example, attached to the column between the lowermost cable C1 and the road surface in a cylindrical shape so as to cover the periphery of the column. A column cover 1 is prepared so as to have a height and width corresponding to the height and perimeter of the column to be covered.
In the case of the column cover 1 of the above-described embodiment, the flexibility of the column cover 1 is used to wind the column cover 1 around the column P so that the column P is arranged inside the column cover 1. , attach the strut cover. After the column cover 1 is arranged at a predetermined position, the hook-and-loop fasteners 17, 17 of the mounting portions 16, 16 are engaged with each other to prevent the column cover 1 from coming off the column P.

When the post cover 1 is attached to the post P, the visibility of the post P, especially at night, is enhanced by the reflector layer 13 provided on the outer surface of the post cover 1 .
The length of the column cover 1 (the length in the vertical direction in the plan view of FIG. 1) is adjusted so that the length between the cables (for example, the second cable C2 from the bottom and the third cable C2 from the bottom) is adjusted. between cables C3).

The post cover 1 can be easily attached to the post P by utilizing the flexibility of the post cover 1 . If the support post cover 1 is provided with a reflector layer, the support post P can be easily attached so that the reflector layer 13 surrounds the support P, and light from various directions can be efficiently reflected. In particular, nighttime visibility is enhanced.

In FIG. 2, the method of attaching the post cover 1 to the existing cable-type protective fence already laid on the road was explained. Installation of cable guardrails may be carried out using attached stanchions. The fixing method of the column cover is not particularly limited, and the outer circumference of the column cover wrapped around the column may be surrounded by a fixing band or the like to be fixed.

The operation and effect of the support column cover 1 of the above embodiment will be described. According to the strut cover 1, the safety of the strut cover of the cable type protective fence can be enhanced.
Since the cover body 11 of the column cover 1 is formed by wrapping the rectangular non-woven fabric 14 in the tube 15 of the non-permeable synthetic resin sheet, the column cover 1 is extremely lightweight. . If the cover is lightweight, even if the cover separates from the post when a vehicle comes into contact with the protective fence, the cover will scatter and contact other objects, causing secondary damage. It becomes harder and safety is improved.

Furthermore, since the column cover 1 is configured so that the water outside the tube does not reach the non-woven fabric 14 by the tube 15 made of a non-permeable synthetic resin sheet, the cover body 11 (non-woven fabric 14) is protected from rainwater and muddy water. It is prevented from becoming heavy due to water absorption. In addition, it is possible to prevent water from entering the inside of the cover body 11 and freezing it, and the flexibility of the cover is maintained. As a result, secondary damage due to the cover when the cover scatters and contacts other articles in the event of a contact accident is less likely to occur, and safety is further enhanced.

Further, the column cover 1 and the synthetic resin sheet forming the tube 15 are airtight, and a predetermined amount of air is enclosed in the synthetic resin sheet tube 15 together with the nonwoven fabric 14. , movement of water vapor into and out of the tube 15 is prevented. As a result, it is possible to prevent water vapor from entering from the outside of the tube and condensing inside the tube, thereby preventing the nonwoven fabric 14 from absorbing water and becoming heavy. As a result, it becomes more certain that the column cover 1 does not become heavy, secondary damage due to the cover is less likely to occur, and safety is further enhanced.

Further, the column cover 1 and the synthetic resin sheet forming the tube 15 are airtight, and a predetermined amount of air is enclosed in the synthetic resin sheet tube 15 together with the nonwoven fabric 14. In this case, as described below, it becomes easier to attach the cover so that the surface of the cover and the reflector have a clean cylindrical shape, and the visibility of the post P at night can be further enhanced.

FIG. 3 shows a cross section of the column cover 1 of the above-described embodiment attached to the column P. As shown in FIG.
When the column cover 1 is wound around the column P, the thickness of the nonwoven fabric 14 causes a difference in the circumferential length between the positions where the outer peripheral side and the inner peripheral side of the tube 15 are arranged. As shown in FIG. 3, this difference in circumference is absorbed by the partial bending of the tube located on the inner circumference side. When a predetermined amount of air is enclosed in the synthetic resin sheet tube 15 together with the nonwoven fabric 14, the outer peripheral surface of the tube 15 is kept taut, and the reflector layer 13 may be bent. It disappears, and the outer peripheral side of the tube and the reflector layer 13 become a clean cylindrical shape. If the reflecting material has a clean cylindrical shape, the reflecting material layers face each other firmly even when viewed from various directions, so that the reflection of light becomes more reliable and the visibility of the post P at night is further improved. can be done.

Further, when a predetermined amount of air is enclosed in the synthetic resin sheet tube 15, the enclosed air acts to separate the reflector layer 13 from the outer peripheral surface of the post P. A column cover 1 can be attached. If the nonwoven fabric layer is crushed and the reflector layer 13 and the posts P are arranged so as to be in firm contact with each other, the reflector layer is likely to be damaged or lost when the reflector layer is lightly contacted. and the visibility is likely to be impaired. If a certain amount of air is enclosed in the tube 15 of the synthetic resin sheet, the reflector layer will be separated from the strut through a cushion of air, so damage to the reflector layer in the event of light contact, Loss can be suppressed. Thereby, the durability of the support|pillar cover 1 and long-term visibility can be improved.

In addition, when the column cover 1 is provided with a reflective material layer laminated and integrated on the outer surface of the cover body, the reflective material improves visibility particularly at night.

In addition, if hook-and-loop fasteners that can be engaged with each other are integrated at both ends of the cover body as in the column cover 1 of the above-described embodiment, the hook-and-loop fasteners can be used to quickly and efficiently mount the cover. It can be done. Also, when using adhesives, adhesives, adhesive tapes, etc. for installation work, if it gets dirty with water or mud, it will not be able to adhere well, so installation work may not be possible in rainy weather, or the support column cover may not be attached. There was a problem that it could not be installed well if it was soiled with muddy water or the like. When using the hook-and-loop fastener, the work of attaching the cover can be carried out even under such conditions that the column cover 1 gets wet with rain, such as in rainy weather or stormy weather, and the efficiency of construction is particularly enhanced.

The invention is not limited to the above embodiments, and can be implemented with various modifications. Still another embodiment of the invention will be described below, but in the following description, differences from the above embodiment will be mainly described, and detailed descriptions of the same parts will be omitted. Moreover, these embodiments can be implemented by combining some of them with each other or replacing some of them.

For example, the specific form of the reflector layer 13 is not particularly limited. In the above-described embodiment, the reflector layer 13 is provided by a single reflector sheet so as to cover the entire cover body 11. However, a plurality of reflectors are arranged on the outer surface of the cover body 11 and bonded together. may The reflector layer may be provided so as to cover the entire outer surface of the cover body, or may cover a portion of the cover body. Also, the reflective material layer may be integrated with the outer surface of the cover body in a specific planar pattern such as letters and arrows.

Also, a specific pattern may be displayed on the surface of the cover body or the reflector layer. For example, specific pictures, characters, symbols, or patterns may be printed on the cover body, and specific information may be displayed using the post cover.

The post cover can be used for the posts of the cable-type protective fence, and can improve the visibility of the posts, and has a high industrial utility value.

1 Column cover 11 Cover body 14 Nonwoven fabric 15 Tube 13 Reflector layer 16 Mounting part 17 Hook-and-loop fastener P Columns C1, C2, C3 Cable

Claims (3)

A post cover assembled to a post of a cable-type protective fence,
The column cover has a flexible cover body,
The cover main body is configured such that a rectangular nonwoven fabric is wrapped in a tube made of a non-permeable synthetic resin sheet so that water outside the tube does not reach the nonwoven fabric .
Furthermore, the synthetic resin sheet is airtight, and a predetermined amount of air is enclosed in the tube of the synthetic resin sheet together with the nonwoven fabric.
Pole cover for cable-type protective fences. A reflector layer laminated and integrated on the outer surface of the cover body,
The post cover of the cable type protective fence according to claim 1 . Both ends of the cover body are integrated with hook-and-loop fasteners that can be engaged with each other,
The post cover of the cable type protective fence according to claim 1 .

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