JP2019157581A - Guard cable - Google Patents

Abstract

To provide a guard cable which makes it easy to collect the scattered members at the time of accident such as collisions.SOLUTION: In a guard cable in which a plurality of cables is extended between poles, a spacer which is attached to the pole to separate the cables from each other is formed in a flat shape, and bright portions having one of light reflectivity or luminescent property are provided on each of the outer surface on both sides in the thickness direction of the spacer. The spacer is formed in a flat shape having the size in the width direction larger than that in the thickness direction, so that the spacer which is detached from the pole due to collision by a vehicle and falls on a road surface is easily to be in a state in which its thickness direction is directed vertically. Then, since bright portions having one of light reflectivity or luminescent property are provided on each of the outer surface on both sides in the thickness direction of said spacer, the bright portions are directed upward so that the fallen spacer becomes easier to be visibly recognized and thus can be collected easily.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a guard cable installed mainly along a road.

  Guard rails and railings have been conventionally used as fences to prevent the running vehicle from deviating from the road, and as one type, cables such as wires are erected between struts standing at intervals. A guard cable is also used.

  For example, Patent Document 1 discloses a terminal column installed on a concrete foundation, an intermediate column inserted into a sleeve embedded in the ground between the terminal columns and supported at the lower end, and both ends ahead of the terminal column. Provided with n cables (n = 3-7) connected to the anchor body, the terminal struts and the intermediate struts are made of pipes, each having a pair of slits opened at the top ends of the struts on the left and right sides parallel to the road. The cable-type road protection fence according to the present invention is disclosed in which the cable is stretched across the slit at an interval in the vertical direction.

JP 2011-208491 A

  In the cable-type road protection fence shown in Patent Document 1, a spacing member is attached to a slit of an intermediate column that allows a cable to pass horizontally, and the vertical distance of the cable is maintained. When contacted, the spacing member may be detached from the support column and scattered around, which may require recovery.

  The present invention provides a guard cable that can easily collect scattered members in the event of an accident such as contact.

In order to achieve the above object, the present invention is configured as follows.
That is, the guard cable according to the present invention is a guard cable in which cables are erected between a plurality of support columns that are erected at intervals,
A plurality of cables spaced apart in the vertical direction are arranged so as to pass through the inside of the groove portion provided in the support column and attached to the support column, and a spacer for separating each cable is provided between the cables in the groove portion. Placed and attached to,
The spacer is formed in a flat shape whose size in the width direction is larger than that in the thickness direction, and each of the outer surfaces on both sides in the thickness direction is provided with a bright portion having either one of light reflectivity and light emission. It is what.

  According to the guard cable according to the present invention, the spacer attached to the groove portion of the support column is formed in a flat shape whose size in the width direction is larger than that in the thickness direction. The dropped spacer tends to be in a state where the thickness direction is directed up and down. And, since each of the outer surfaces on both sides in the thickness direction of the spacer is provided with a bright portion having either one of light reflectivity and light emitting property, the bright portion of the dropped spacer is directed upward and is easily visible. It can be recovered more easily.

  Further, if the pillar is formed of a cylindrical body, the groove is formed in the cylindrical wall of the pillar, and the bright part of the spacer is arranged outside the pillar, the bright part of the spacer can be used for driving the vehicle. This is preferable because it is visible from the hand or the like, and the visibility of the guard cable support is improved.

  In addition, it is preferable that the spacer is provided with a magnetic material and attached to the magnet so that the spacer can be lifted, because the spacer that has been detached from the column and dropped onto the road surface can be more easily collected using the magnet.

  According to the guard cable according to the present invention, it is possible to easily collect the spacer detached from the column due to vehicle contact or the like.

It is a front view showing one embodiment of a guard cable concerning the present invention. It is AA sectional drawing of FIG. 1 which shows the support | pillar of a guard cable. It is a figure which shows the state which removed the cable, the spacer, and the cover body from the support | pillar of FIG. 1A is a plan view, and FIG. 2B is a front view showing the spacer of FIG. FIG. 5 is a rear view of FIG. 4. It is BB sectional drawing of FIG. 1 which shows the cross section of a support | pillar. It is a figure which shows the condition where the spacer of FIG. 4 has fallen on the road surface etc.

Embodiments of the invention will be specifically described with reference to the drawings.
In the drawing, 1 is a guard cable. In the guard cable 1, a cable 2 made of a wire is installed between a plurality of support pillars 3 that are installed upright at intervals in the longitudinal direction.
In the guard cable 1 shown in FIG. 1, five cables 2 are arranged at intervals in the vertical direction between the columns 3.
In FIG. 1, the left and right direction in the figure, which is the direction in which the cable 2 extends, is the longitudinal direction, the up and down direction perpendicular to the longitudinal direction is the longitudinal direction, and the direction perpendicular to the longitudinal direction and the longitudinal direction is the longitudinal direction. The following description will be given in the horizontal direction.

Each support column 3 of the guard cable 1 is formed of a cylindrical metal pipe, and each cable 2 attached to the support column 3 is disposed so as to penetrate the support column 3 in the longitudinal direction.
A spacer 5 that is disposed between the cables 2 and separates the cables 2 is attached to the support column 3, and a lid 4 is attached to the upper end of the support column 3.

2 is a cross-sectional view taken along the line AA in FIG. 1 showing the support 3 of the guard cable 1. FIG. 3 is a view showing a state in which the cable 2, the spacer 5, and the lid 4 are removed from the support 3 in FIG. is there.
As shown in FIG. 3, a groove portion 31 is formed in the cylindrical wall of the column 3.
The groove portions 31 are formed in a notch shape that extends downward from the upper end of the support column 3, and two groove portions 31 are formed on each of the cylindrical walls on both sides in the longitudinal direction.
Each cable 2 is attached to the column 3 by being inserted inward from the opening portion of the groove 31 at the upper end of the column 3. In the groove portion 31, the spacers 5 are arranged and attached between the cables 2, so that the cables 2 are arranged at substantially equal intervals.
The upper opening portion of the groove portion 31 is closed by a lid portion 4 attached to the support column 3 to prevent the cables 2 and the spacers 5 from being detached from above.

4 shows the spacer 5 of FIG. 1, (A) is a plan view, (B) is a front view, and FIG. 5 is a rear view of FIG.
In the following description regarding FIGS. 4A and 4B, the horizontal direction in the drawing of FIG. 4A is the width direction, the vertical direction in the drawing is the thickness direction, and the vertical direction in the drawing of FIG. The direction.
As shown in FIG. 4 (a), the spacer 5 is formed in a flat shape whose size in the thickness direction is smaller than that in the width direction. Specifically, the spacer 5 is formed in a substantially bowl-shaped outer shape, and among the outer surfaces located on both sides in the thickness direction, the front surface 50a which is one outer surface is projected in a circular arc shape to the front side, and the other outer surface The rear surface 50b, the side surfaces 50c located on both sides in the width direction, and the outer surfaces 50d located on both sides in the vertical direction are formed in a plane.
Each of the side surfaces 50c of the spacer 5 is formed with two substantially rectangular concave grooves 51 that are recessed inward, one by one, and each concave groove 51 extends over the entire length of the spacer 5 in the vertical direction. Forming.
The front surface 50 a of the spacer 5 is formed in an arc shape corresponding to the outer surface of the cylindrical support column 3, and the concave grooves 51 are formed so as to be inclined in a direction along the front surface of the spacer 5. .

  The spacer 5 is made of a flexible material that deforms elastically when subjected to an external force. Specifically, the spacer 5 is made of a soft vinyl chloride resin. The material of the spacer 5 is not limited to a soft vinyl chloride resin, and a synthetic resin having flexibility such as a low density polyethylene resin, a synthetic resin elastomer such as polyurethane, various rubber materials such as natural rubber and synthetic rubber, and these A foam or metal may be selected or combined.

The spacer 5 has a bright portion 52a on the front surface 50a and a bright portion 50b on the rear surface 50b.
Each of the bright portions 52a and 52b is formed of a reflective member that reflects the irradiated light satisfactorily. Specifically, the bright portions 52a and 52b are formed of a thin metal plate such as stainless steel or aluminum having a substantially mirror-like surface. is doing.
Each of the bright portions 52a and 52b is disposed at a corresponding position between the bottom surfaces 51a of the concave grooves 51, and is formed over the entire length in the vertical direction.

The spacer 5 is provided with a core portion 55 inside thereof.
The core portion 55 is formed of a stainless steel plate, and is disposed between the bottom surfaces 51 a of the respective concave grooves 51 so as to cover the entire length of the spacer 5 in the vertical direction.
By forming the core material 55 with a material having a tensile strength larger than that of the soft vinyl chloride resin that is a material constituting the entire spacer 5, the rigidity of the entire spacer 5 is improved.

The spacer 5 is formed by extrusion molding of a soft vinyl chloride resin, which is a material constituting the whole, and has a cross-sectional shape perpendicular to the longitudinal direction that is the same over the entire length.
Specifically, the bright portions 52a and 52b and the members constituting the core material 55 are inserted into a mold and formed by composite extrusion molding that is integrated during extrusion molding.

6 is a cross-sectional view taken along the line BB of FIG.
The spacer 5 is provided so as to be attached to the groove portion 31 by inserting the end of the cylindrical wall of the column 3 constituting the opening edge of the groove portion 31 inside each concave groove 51.
By attaching the spacer 5 to the groove portion 31, the opening portion of the groove portion 31 is closed with the spacer 5, and the interval between the cables 2 arranged above and below the spacer 5 is prevented from being narrowed.

Since the spacer 5 is attached by inserting the end of the cylindrical wall of the support column 3 inside each concave groove 51, when the vehicle or the like contacts the guard cable 1 and receives a large impact, the groove portion 31 of the support column 3. Detach from.
The main causes of the detachment of the spacer 5 from the support column 3 are considered to be the expansion of the groove width of the groove portion 31 due to an external force and the deformation of the spacer 5. It is thought to occur on the direction side.
In other words, the deformation of the spacer 5 is unlikely to occur between the bottom surfaces 51 a of the respective concave grooves 51, and the spacers 5 are provided by providing the bright portions 52 a and the bright portions 52 b at positions corresponding to the bottom surfaces 51 a of the respective concave grooves 51. It is possible to suppress the damage of each of the bright parts 52a and 52b and the detachment from the spacer 5 due to the deformation.
In addition, since the core material 55 is disposed between the bottom surfaces 51 a of the concave grooves 51, the deformation of the spacer 5 at this position can be further reduced, so that the bright portions 52 a and 52 b are damaged or detached from the spacer 5. Separation can be effectively suppressed.

FIG. 7 is a diagram illustrating a situation where the spacer 5 of FIG. 4 is falling on a road surface or the like.
When a vehicle or the like comes into contact with the guard cable 1 in FIG. 1 and the spacer 5 detached from the column 3 falls on the road surface or the like, as shown in FIG. 7, the front surface 50a or the rear surface 50b disposed on both sides in the flat thickness direction. Either of these tends to be upward.
For this reason, since each of the bright portions 52a and 52b provided on the front surface 50a and the rear surface 50b is easily visible from above, even if a large number of spacers 5 are detached and scattered, it is easy to find and recover them. Easy.
In addition, since each of the bright portions 52a and 52b is formed of a reflecting member that reflects the irradiated light well, each bright portion 52a is irradiated with light of light even at night. The position of the spacer 5 is easily grasped by the light reflected by 52b, and can be collected more easily.

Further, as shown in FIG. 6, the glitter portion 52 a provided on the front surface 50 a of the spacer 5 is disposed outside the support column 3 in a state where the spacer 5 is attached to the groove portion 31 of the support column 3. Specifically, the bright portion 52 a of the spacer 5 is directed in the longitudinal direction of the guard cable 1 while being attached to the column 3.
Since the bright portion 52a is directed in the longitudinal direction of the guard cable 1, the visibility of the column 3 from the driver of the vehicle is improved, and an effect of suppressing the occurrence of an accident in which the vehicle contacts the guard cable 1 can be expected. .
The bright part 52 b provided in the spacer 5 is arranged inside the support column 3 in a state where the spacer 5 is attached to the support column 3, and therefore does not contribute to improving the visibility of the support column 3.

The core material 55 provided in the spacer 5 is made of stainless steel. More specifically, the core material 55 is made of ferritic stainless steel having a property of adhering to a magnet. Thus, by using a magnetic material for a part of the spacer 5 and attaching the spacer 5 to the magnet so that it can be lifted, the spacer 5 detached from the support column 3 can be more easily recovered using the magnet. It can be carried out.
Further, the magnetic material used for the spacer 5 may be used in a portion other than the core material 55, and the material thereof is not limited to the ferritic stainless steel, but other stainless steel such as martensitic stainless steel that can adhere to the magnet, , Iron, ferrite, and other materials may be used.

In addition, the guard cable 1 which concerns on this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention.
For example, the guard cable 1 has the spacer 5 formed of a flexible material, but is not limited thereto, and may be formed of other materials such as hard synthetic resin or wood. However, if the spacer 5 is formed of a flexible material, there is a problem that the spacer 5 is cracked or broken when the spacer 5 receives an external force such as when the vehicle contacts the guard cable 1. It is preferable because the spacer 5 which is made difficult and can be easily recovered from the support column 3 can be recovered. In addition, the spacer 5 is formed of an elastic material having flexibility such as soft vinyl chloride resin and easily elastically changed, so that even when the traveling vehicle steps on the spacer 5 that has been detached from the column 3 and scattered on the road surface, etc. Since 5 is not easily damaged, an effect of increasing the reusable ratio of the collected spacer 5 can be expected.

  Moreover, although the said spacer 5 has arrange | positioned the brightness | luminance part 52a and the brightness | luminance part 52b in the position corresponding between the bottom surfaces 51a of each concave groove 51, respectively, it is not restricted to this. For example, the bright part 52 a and the bright part 52 b may be formed so as to be positioned on the outer side in the width direction than the bottom surface 51 a of the groove 51. However, when the spacer 5 attached to the groove 31 is detached from the support column 3, it is assumed that the spacer 5 is deformed more greatly in the portion on the outer side in the width direction than the bottom surface 51a of the concave groove 51. It is preferable that the bright part to be formed is formed separately from each of the bright parts 52a and 52b shown in FIGS. 4 and 5, and is arranged with an interval from each of the bright parts 52a and 52b. By providing the bright part in this way, even if the spacer 5 is deformed and a part of the bright part is damaged or peeled off, the bright parts 52a and 52b are less likely to follow and cause damage or peeling. The function of each of the bright portions 52a and 52b for easily collecting the separated spacer 5 is not impaired.

Further, each of the bright portions 52a and 52b formed on the spacer 5 has a substantially mirror-like surface to improve light reflectivity, but is not limited thereto. For example, each bright portion provided in the spacer 5 may be provided with a property of irregularly reflecting the irradiated light in all directions, and provided with retroreflectivity of light that reflects the irradiated light toward the light source. May be. Moreover, each said brightness | luminance part is not restricted to what is provided with the reflectivity of light, What is necessary is just to be able to visually recognize well, You may form with members provided with luminescent property, such as a fluorescent substance and daylight. .
Each of the bright portions 52a and 52b may be formed by combining the members exemplified above, and the bright portion 52a and the bright portion 52b may be formed of different members.

Moreover, although the said spacer 5 is formed by extrusion molding of the soft vinyl chloride resin which is a thermoplastic resin, it is not restricted to this, You may form using other shaping | molding methods, such as injection molding.
In addition, the bright portions 52a and 52b formed on the spacer 5 are formed by composite extrusion molding integrally formed at the time of molding the spacer 5, but the invention is not limited to this. These members may be formed by insert molding that is integrally formed at the time of injection molding, and members that form each glittering part may be fitted into a previously formed spacer 5 by a method such as fitting, bonding, or screwing. Alternatively, the bright portions may be formed on the spacer 5 formed in advance or may be formed by other methods.

DESCRIPTION OF SYMBOLS 1 Guard cable 2 Cable 3 Support | pillar 31 Groove part 4 Cover body 5 Spacer 51 Concave groove 52 Bright part 55 Core part

Claims (3)

A guard cable in which cables are erected between a plurality of struts erected at intervals,
A plurality of cables spaced apart in the vertical direction are arranged so as to pass through the inside of the groove portion provided in the support column and attached to the support column, and a spacer for separating each cable is provided between the cables in the groove portion. Placed and attached to,
The spacer is formed in a flat shape whose size in the width direction is larger than that in the thickness direction, and each of the outer surfaces on both sides in the thickness direction is provided with a bright portion having either one of light reflectivity and light emission. And guard cable. The column is formed of a hollow cylindrical body on the inside, and the groove is formed on the column wall of the column,
The guard cable according to claim 1, wherein the bright portion of the spacer attached to the groove portion is disposed outside a support column. The guard cable according to claim 1, wherein the spacer includes a magnetic body and is formed so as to be attached to a magnet and liftable.

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