JP3213025U - Light reflecting member for wire protection fence - Google Patents

Abstract

Provided is a light reflecting member for a line protection fence capable of enhancing the line-of-sight inductivity of the line protection fence. SOLUTION: A cylindrical main body 10, a single slit 15 penetrating in the axial direction on the side peripheral surface of the main body, and a reflecting portion made of a light reflecting material provided on the side peripheral surface of the main body 31 and 32, and the slit is expanded by the external force, and the light reflecting member 1 having a body made of an elastic material that returns to the original state by the removal of the external force is provided via the slit. Attach to the wire material of the wire protection fence. [Selection] Figure 2

Description

  The present invention relates to a light reflecting member attached to a wire guard.

  Guard fences, guard pipes, guard cables, and the like are examples of road fences and protective fences installed on the roadside. The protective fence is required to have an action of guiding the line of sight in addition to the action of absorbing and mitigating the impact when the vehicle collides, the action of preventing the vehicle from breaking through, and the like. For this reason, it is common to provide a light-reflecting member that reflects light such as vehicle headlights on the protective fence in order to achieve good line-of-sight guidance even when the surrounding environment is dark, such as at night or when fog occurs. Is.

  Since the guard rail has a wide area of the corrugated cross-section beam, it is possible to apply light-reflective coating to the beam or attach a light-reflecting member to the beam. On the other hand, since there are no members having a large area in guard fences using guard materials such as guard pipes and guard cables, light reflecting members are attached to the pillars supporting the wire materials at predetermined intervals. . For this reason, the number of light reflecting members is limited to the number of support columns, and there is a problem that the line-of-sight inductivity is insufficient.

  By the way, the guard fence currently installed in the median strip is mainly a guardrail. In the guard rail of the median strip, one strut supports the two beams arranged toward the roads on both sides with a gap.

  On the other hand, on a two-lane road that has not had a median until now, measures to install a wire rope type protective fence along the center line are being promoted in order to prevent a frontal collision accident caused by a vehicle jumping out to the opposite lane. Yes. This wire rope type guard fence is made by making the struts thinner than the guard cable and improving the buffering properties. When the vehicle collides, the struts deform and absorb the impact, and the toughness of the wire rope pulls the vehicle Take it.

  Unlike rope guard rails, wire rope type guard fences are not front and back, and the support columns are narrow and the width required for installation is small. There are advantages that can be made. In addition, there is an advantage that work for providing an opening when an accident occurs and work for recovery after the accident are easier than guardrails. Furthermore, there is an advantage that the line-of-sight transparency is higher than that of the guard rail and an advantage that there is no member such as a beam that prevents the movement of snow during snow removal work.

  As described above, since the wire rope type guard fence has many advantages, it is expected to be widely introduced nationwide in the future. However, the conventional guard pipe is limited in that the part where the light reflecting member is attached is limited. And guard cable.

  Then, in view of the said situation, this invention makes it a subject to provide the light reflection member for the filament protection fence which can improve the gaze | guide line | wire inductivity of a filament protection fence.

In order to solve the above-mentioned problem, a light reflecting member (hereinafter simply referred to as “light reflecting member”) for a wire guard according to the present invention is provided.
“The cylindrical body,
A slit provided in the axial direction in the side peripheral surface of the main body;
A reflecting portion made of a light-reflective material provided on at least one of a side peripheral surface and an end surface of the main body,
The main body is formed of a material having elasticity in which the slit is expanded by an external force and the slit is restored to its original state by the removal of the external force.
It is attached to the filament material of the filament protection fence through the slits ”.

  The “line material of the wire protection fence” refers to the “cable” of the guard cable, the “pipe” of the guard pipe, and the “wire rope” of the wire rope type protection fence.

  The “tubular shape” of the main body may be a cylindrical shape, an elliptical cylindrical shape, or a polygonal cylindrical shape.

  Examples of the “reflecting portion made of a light-reflective material” include “a reflecting portion to which a light-reflecting sheet is stuck” and “a reflecting portion to which a light-reflecting paint is applied”. Here, the “light reflecting sheet” is such that the corner cube type microprisms having retroreflectivity are densely arranged on the resin base material sheet so that the surface of the microprism is a mirror surface with respect to the cut surface. Light-reflective sheets coated with a metal vapor-deposited layer such as aluminum, and ultra-fine spherical glass beads are densely arranged via a metal vapor-deposited layer on a resin base sheet and coated with a transparent resin film. Commercially available light reflecting sheets can be used. In addition, as the “light-reflective coating material”, a coating material containing a large number of extremely fine spherical glass beads can be used.

  The light reflecting member of this configuration has a cylindrical body and a slit that penetrates in the axial direction, and the slit is expanded by an external force, and the elasticity that returns the slit to its original state by the removal of the external force. Since it has, it can be easily “retrofitted” so as to be fitted into the wire material of the existing protective fence through a slit.

  Thus, since the light reflecting member of this structure can be attached “to the wire” in the guard fence, a large number can be provided without being limited by the number of support columns. Alternatively, it can be provided long along the line material of the protective fence. Therefore, according to the light reflecting member of this configuration, it is possible to enhance the line-of-sight inductivity of the filament guard. Further, by adding the light reflecting member of the present configuration to the line protection fence in which the light reflecting member is already provided on the support, it is easy to further increase the line-of-sight inductivity of the existing line protection fence.

The light reflecting member for the filament guard according to the present invention has the above-described configuration.
“The main body has a long cylindrical shape whose length in the axial direction is longer than the diameter and has flexibility to bend in the axial direction”.

  In this structure, since the main body is long, it can be provided long along the line material of the protective fence. Moreover, since the main body has the flexibility to bend in the axial direction in addition to the elasticity that enables opening and closing of the slit, it is easy to attach to the wire rod of the protective fence even if the main body is long. Further, since it has flexibility to bend in the axial direction, it can be attached without any problem even if the pipe material to be attached is curved.

The light reflecting member for the line protection fence according to the present invention is changed to the above configuration,
“The main body may have a short cylindrical shape whose axial length is equal to or less than a diameter”.

  In this configuration, since the main body is short, the degree of freedom of the number of attachments to the wire rod of the protective fence is high. Therefore, it is possible to set the number of installations according to various conditions such as the degree of curve of the protection fence to be installed, the difference in brightness of the surrounding environment such as the presence or absence of street lights, the distance between columns in the protection fence, etc. it can.

  As described above, according to the present invention, it is possible to provide a light reflecting member for a line protection fence that can enhance the line-of-sight inductivity of the line protection fence.

It is a perspective view of the main body of the light reflection member which is 1st embodiment of this invention. (A) The perspective view of the light reflection member of 1st embodiment, (b) The perspective view of the light reflection member of the modification of 1st embodiment, (c) The light reflection member of the other modification of 1st embodiment FIG. It is a perspective view of the state where the light reflection member of a first embodiment was attached to a guard cable. It is a perspective view of the state where the light reflection member of a first embodiment was attached to the wire rope type guard fence. (A) The perspective view of the light reflection member of 2nd embodiment, (b) The perspective view of the light reflection member of the modification of 2nd embodiment.

  Hereinafter, the light reflecting members 1 and 2 according to specific embodiments of the present invention will be described with reference to FIGS. 1 to 5. First, the light reflecting member 1 of the first embodiment will be described. The light reflecting member 1 includes a cylindrical main body 10, a single slit 15 provided through the side peripheral surface of the main body 10 in the axial direction, and a light reflective property provided on the side peripheral surface of the main body 10. And a reflecting portion 31 made of the above material.

  More specifically, as shown in FIG. 1, the main body 10 has a long cylindrical shape whose axial length is longer than the diameter, and has flexibility to bend in the axial direction. The main body 10 is formed of a material having elasticity that allows the slit 15 to be expanded by an external force, and the slit 15 to return to its original state when the external force is removed. As such an elastic and flexible material, a polyethylene resin and a polyvinyl chloride resin excellent in weather resistance, and a polyurethane resin having a high tensile strength can be preferably used.

  The reflecting part 31 of the light reflecting member 1 of the first embodiment is provided on the entire side peripheral surface of the main body 10 as shown in FIG. 2A, and is formed by applying a light reflecting paint. ing.

  Moreover, as shown in FIG.2 (b), (c), the light reflection member 1 of 1st embodiment shall be equipped with the reflection part 32 by a light reflection sheet. Here, FIG.2 (b) is an example provided with the reflection part 32 formed by sticking a light reflection sheet on the side peripheral surface of the main body 10 in the linear form parallel to an axial direction. On the other hand, FIG.2 (c) is an example provided with the reflection part 32 formed in the side peripheral surface of the main body 10 by sticking a light reflection sheet helically. In addition, although illustration is abbreviate | omitted, let it be the light reflection member 1 which equips the side peripheral surface of the main body 10 with the reflection part 32 which wound the light reflection sheet in the circumferential direction orthogonal to an axial direction with the fixed space | interval. You can also.

  As shown in FIG. 3, the light reflecting member 1 having the above-described configuration can be attached to a guard cable 50 serving as a line protection fence. Here, in the guard cable 50, pillars 51 are erected at a predetermined interval, and a bracket 52 that holds the cable 59 is attached to the pillar 51. The bracket 52 holds the cable 59 at a position spaced from the column 51 in order to adopt a block-out structure in which the vehicle does not directly collide with the column 51. In addition, an interval holder 53 that holds an interval between the plurality of cables 59 is provided between the columns 51.

  When the light reflecting member 1 is installed in the guard cable 50 having such a configuration, the slit 15 in the closed state is pushed open in the circumferential direction and is fitted into the cable 59 from the outside. Thereafter, if the force that pushes open the slit 15 is removed, the slit 15 returns to the original closed state due to the elasticity of the main body 10, so that the light reflecting member 1 is stably held without being detached from the cable 59.

  As shown in FIG. 4, the light reflecting member 1 can be attached to a wire rope type protective fence 60 as a linear protective fence. Here, the wire rope type guard fence 60 is the same as the guard cable 50 in that the support supports the wire rod, but the support 61 is narrower than the support 51 of the guard cable 50, and the support 61 is connected to the wire rope 69. Has penetrated. This is a structure for absorbing the impact by deforming and tilting the support 61 when the vehicle collides, and preventing the vehicle from jumping out by the pulling force of the wire rope 69.

  Specifically, the upper part of the support 61 is divided into two parts, and a plurality of wire ropes 69 are passed through the space of the divided part, and a spacing member 63 is sandwiched between them to increase the spacing between the wire ropes 69. Hold. After arranging all the wire ropes 69 and the spacing members 63, the ring-shaped strap 64 is fitted to the outer periphery of the upper part of the support 61, and the cap 65 is attached to the upper end of the support 61, thereby opening the part divided into two forks. Is prevented.

  When the light reflecting member 1 is installed on the wire rope type guard fence 60 having the above-described configuration, the slit 15 in the closed state is pushed open in the circumferential direction and fitted into the wire rope 69 from the outside. Thereafter, if the force that pushes open the slit 15 is removed, the slit 15 returns to the original closed state due to the elasticity of the main body 10, so that the light reflecting member 1 is stably held without being detached from the wire rope 69.

  In this manner, the light reflecting member 1 can be attached in the same manner regardless of whether the line protection fence is the guard cable 50 or the wire rope type protection fence 60. Of course, even if the line protection fence is a guard pipe, the light reflecting member 1 can be attached by the same method. In addition, in FIG.3, 4, the state which has attached the light reflection member 1 to the uppermost line material and the lowermost line material among each of a plurality of wire materials (cable 59, wire rope 69). Although illustrated, the position and number of the wire rods to be attached can be set according to the installation environment of the protective fence.

  Next, the light reflecting member 2 of the second embodiment will be described. The light reflecting member 2 is provided on at least one of the cylindrical main body 20, a single slit 25 provided in the axial direction on the side peripheral surface of the main body 20, and the side peripheral surface and end surface of the main body 20. And a reflecting portion made of the light reflecting material.

  More specifically, as shown in FIG. 5, the main body 20 has a short cylindrical shape whose axial length is equal to or smaller than the diameter. Further, the main body 20 is formed of a material having elasticity that allows the slit 25 to be expanded by an external force and the slit 25 to return to its original state by the removal of the external force. As the material having such elasticity, the above-described resins can be preferably used. The length of the main body 20 in the axial direction is preferably 3 mm or more for ease of handling.

  As shown in FIG. 5 (a), the reflecting portion 31 of the light reflecting member 2 of the second embodiment is provided on the entire end surfaces of the main body 20, and is formed by applying a light reflecting paint. Yes.

  Moreover, as shown in FIG.5 (b), the light reflection member 2 of 2nd embodiment shall be provided with the reflection part 32 by a light reflection sheet, as shown in FIG.5 (b). Here, FIG.5 (b) is an example provided with the reflection part 32 by which the light reflection sheet was wound in the circumferential direction orthogonal to an axial direction on the side peripheral surface of the main body 20. FIG.

  In addition, although illustration is abbreviate | omitted, as another modification, the light which has the reflection part 31 by the light-reflective coating is provided in both end surfaces, and the reflection part 32 by the light reflection sheet is provided in the side peripheral surface. The reflecting member 2 can also be used.

  When the light reflecting member 2 having the above-described configuration is installed on the line protection fence, similarly to the light reflecting member 1 of the first embodiment, the slit 25 in the closed state is pushed open in the circumferential direction, and the line material is externally opened. Fit. Thereafter, if the force that pushes open the slit 25 is removed, the slit 25 returns to the original closed state due to the elasticity of the main body 20, so that the light reflecting member 2 is stably held without being detached from the wire rod.

  As described above, since the light reflecting members 1 and 2 of this embodiment can be fitted into the wire material through the slits 15 and 25, they can be easily “retrofitted” to an existing protective fence.

  Moreover, since the light reflection member 1 of 1st embodiment is elongate, it can be provided long along the filament material of a guard fence. On the other hand, since the light reflecting member 2 of the second embodiment is short, the degree of freedom of the number of attachments of the protective fence to the wire is high, and the number of installations is set according to various conditions of the protection fence to be installed. can do.

  The present invention has been described with reference to a preferred embodiment. However, the present invention is not limited to this embodiment, and various improvements and modifications can be made without departing from the spirit of the present invention as described below. Design changes are possible.

  For example, in the first embodiment, the light reflecting member 1 whose length in the axial direction is 15 to 20 times the diameter is illustrated by way of illustration, but it extends over the entire length of the line material between the support and the support. The length (for example, 3 m to 6 m) or a shorter length may be used. According to the study by the present applicant, if a plurality of light reflecting members having a length of 4 cm to 5 cm are installed at a pitch of about 30 cm, the passengers of the traveling vehicle are linearly reflected by the light reflecting members. Visible.

  Moreover, when forming the reflection part 32 with a light reflection sheet, it can also be set as the structure with which the one light reflection member 1 and 2 were provided with the several reflection part 32 by the several light reflection sheet from which a color differs.

DESCRIPTION OF SYMBOLS 1 Light reflecting member 10 Main body 15 Slit 2 Light reflecting member 20 Main body 25 Slit 31 Reflecting part 32 Reflecting part 50 Guard cable (line guard fence)
59 Cable (wire material)
60 wire rope type guard fence (wire guard fence)
69 Wire rope

Claims (3)

A tubular body,
A slit provided in the axial direction in the side peripheral surface of the main body;
A reflecting portion made of a light-reflective material provided on at least one of a side peripheral surface and an end surface of the main body,
The main body is formed of a material having elasticity in which the slit is expanded by an external force and the slit is restored to its original state by the removal of the external force.
A light reflecting member for a line protection fence, which is attached to a line material of a line protection fence through the slit. 2. The light for a line protection fence according to claim 1, wherein the main body has a long cylindrical shape whose length in the axial direction is longer than the diameter, and has flexibility to bend in the axial direction. Reflective member. The light reflecting member for a wire guard according to claim 1, wherein the main body has a short cylindrical shape whose axial length is equal to or less than a diameter.

Images