JP2020084418A - Repair wire rope spacing material and repair method of wire rope type guard fence using the same - Google Patents

Abstract

To provide a wire rope spacing material for repair capable of opening a slit of a strut by impact at the time of vehicle collision even after repair, and easily and quickly repairing a broken strut, and a repair method of a wire rope type protection fence using the same.SOLUTION: A wire rope spacing material 1 installed in a slit 11 for supporting a wire rope formed in a strut 10 for supporting a wire rope 20 to maintain the vertical spacing of each wire rope 20, is provided with: an interval holding part 2 having a height for setting the vertical interval of each wire rope 20 and a lateral width larger than the slit width W of the strut 10; and an insertion locking part 3 projected from an inside surface 21 of the interval holding part 2, can be reduced in diameter to be smaller than the slit width W so as to be inserted into the slit 11, expanded after being inserted into the slit 11, and locked to an inside peripheral edge part 12 along the slit 10 of the strut 10.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to a repairing wire rope spacer used mainly for repairing a wire rope guard fence used as a central separation facility for expressways, and a method for repairing a wire rope guard fence using the same.

There is a so-called provisional two-lane section in which only two lanes of a four-lane planned road are provisionally used. In this provisional two-lane section, a removable resin pole is used as a central separation facility so that it can be four-lane in the future. However, the resin pole has no function of preventing entry of a vehicle from the opposite lane, and cannot prevent a jump-out accident due to a dozing driving or the like.

Therefore, in recent years, as a new removable central separation facility for the provisional two-lane section, a plurality of pillars juxtaposed at a predetermined interval and a slit opened at the upper end of the plurality of pillars are installed horizontally. There has been proposed a wire rope type protective fence having a plurality of wire ropes and a spacing member that is installed in the slit and holds the vertical spacing of the wire rope (Patent Document 1). The wire rope and the spacer are repeatedly inserted into the slit in this order to the strut, and when the vehicle collides, the wire rope is disengaged from the strut by opening so that the wire rope is split from the slit and absorbs the impact. It has a structure that makes it easy to do.

JP, 2011-208491, A

However, according to the invention described in Patent Document 1, when the pillar damaged by a vehicle collision or the like is replaced and repaired, the spacing member has a shape that can be installed in the slit only from the upper end of the pillar. The material must be inserted into the slits alternately as in the initial installation. For this reason, since the wire rope is being stretched at the time of repairing, there is a problem that it takes a lot of time and labor to insert the wire rope into the slits one by one. In particular, on the expressway in the provisional two-lane section, traffic restrictions to prevent traffic are required to ensure the safety of repair workers and passing vehicles, and as much as possible from the viewpoint of reducing the impact on expressway users. There is a strong desire to complete the work in time.

Further, the spacing member is required to have a performance of not blocking the opening of the slit of the support column in order to absorb the impact at the time of a vehicle collision due to an accident.

The present invention has been made in order to solve the above problems, and enables opening of the slits of the support post due to the impact at the time of a vehicle collision even after the repair, and repairs the damaged support post. An object of the present invention is to provide a wire rope spacing material for repair that can be easily and quickly performed, and a method for repairing a wire rope type protective fence using the same.

In order to solve the problem of enabling a simple and quick repair work after an accident in a wire rope type protective fence, the repair wire rope spacing material according to the present invention has a plurality of wire ropes mounted on a plurality of columns arranged in parallel. In a wire rope type protective fence in which the wire rope is stretched, the wire rope is installed in a slit for supporting the wire rope to support the wire rope, and the vertical spacing of each wire rope is maintained. A wire rope spacing member, having a height that sets the vertical spacing of each of the wire ropes, and a spacing holding portion having a lateral width larger than the slit width of the column, and formed protruding from the inner side surface of the spacing holding portion. The insertion lock that can be inserted into the slit by reducing the diameter smaller than the slit width, and expands after being inserted into the slit and locks on the inner peripheral edge of the support column along the slit. And a section.

Further, as one aspect of the present invention, in order to solve the problem of preventing the drop after installation while allowing it to be inserted laterally into the slit of the column, the insertion locking portion is a member having a pair of spring properties. In addition, a locking protrusion formed by protruding to the outside may be formed at the tip of these components.

Furthermore, as one aspect of the present invention, in order to solve the problem of facilitating the alignment of the spacing members to be inserted into the slits and suppressing the resistance at the time of installation, the pair of locking protrusions have their tips. The distance width connecting the portions may be formed to be narrower than the slit width, and the distance width connecting the base end portions to each other may be formed to be wider than the slit width.

Further, as an aspect of the present invention, in order to solve the problem of suppressing the resistance at the time of installation and preventing the damage of the insertion locking portion, the pair of the locking projections are provided from the tip of the insertion locking portion. It may be formed of members having a spring property that are bent so as to expand outwardly on the base end side.

Furthermore, as one aspect of the present invention, in order to solve the problem of preventing the locked state from being released due to lateral displacement after being installed in the slit, the inner surface of the interval holding portion is projected so that it can be fitted into the slit. The lateral deviation prevention convex portion may be formed.

The method for repairing a wire rope type protective fence according to the present invention is to replace a damaged column with a new column in order to solve the problem of enabling a simple and quick repair work after an accident in the wire rope type protective fence. Standing on the road, and after fitting a plurality of wire ropes into the slits of the pillar together from above, the repairing wire rope spacing member of any one of the above-mentioned aspects is slit from the outside of the pillar to the upper and lower wire ropes. Repair by inserting the wire rope into the wire and holding the vertical spacing of each wire rope.

According to the present invention, it is possible to open the slits of the columns due to the impact of a vehicle collision even after the repair, and it is possible to easily and quickly repair the damaged columns.

It is a side view which shows one Embodiment of the wire rope type protection fence which concerns on this invention. It is a perspective view which shows the support|pillar in this embodiment. It is a perspective view which shows the repair wire rope spacing material of this embodiment. It is a top view which shows the state which inserts the repair wire rope spacing material of this embodiment into the slit of a support|pillar from the lateral direction. It is a top view which shows other embodiment of the repair wire rope spacing material which concerns on this invention. It is a flowchart which shows the repair method of the wire rope type protection fence of this embodiment.

Hereinafter, an embodiment of a repairing wire rope spacer and a method of repairing a wire rope type protective fence using the same according to the present invention will be described with reference to the drawings.

First, a wire rope type protective fence 100 using the repair wire rope spacing member 1 of the present embodiment will be described. As shown in FIG. 1, the wire rope type protection fence 100 mainly has a plurality of columns 10 arranged in parallel and a plurality of wire ropes 20 stretched around these columns 10. As shown in FIG. 2, the column 10 is for erection of a plurality of wire ropes 20 and is composed of a hollow pipe. A pair of slits 11 are formed at the upper ends of the side faces, and the upper ends of the side faces are opened along the axial direction of the column 10. The slit 11 has a width that allows the wire rope 20 to be fitted therein, and when the vehicle collides, the slit 11 opens so as to tear from the slit 11.

As shown in FIG. 2, the repair wire rope spacing member 1 is fitted into the slit 11 of the support column 10 to maintain the vertical spacing between the wire ropes 20. The repairing wire rope spacing member 1 is not limited to repairing, and may be used when a new wire rope type protection fence 100 is installed.

As shown in FIG. 3, the repair wire rope spacing member 1 of the present embodiment mainly protrudes from the spacing holding portion 2 that holds the vertical spacing of each wire rope 20 and the inner side surface 21 of this spacing holding portion 2. It has an insertion locking portion 3 that is formed and that locks to the inner peripheral edge portion 12 along the slit 11, and a lateral deviation prevention convex portion 4 that prevents lateral deviation after installation in the slit 11. Hereinafter, each configuration will be described in detail.

The space|interval holding|maintenance part 2 maintains the space|interval of the wire ropes 20 comrades installed in a line up and down in the slit 11 uniformly. The spacing member 2 in the present embodiment is made of a synthetic resin plate member or the like, and has a height that sets the vertical spacing of the wire rope 20. The space|interval holding|maintenance part 2 in this embodiment is formed in the height which can hold the five wire ropes 20 at equal intervals with respect to the slit 11 of the one support|pillar 10.

In addition, the spacing member 2 has a lateral width larger than the slit width W of the column 10, and in the present embodiment, has an inner side surface 21 and an outer side surface 22 that are curved along the outer side surface 13 of the column 10. As shown in FIG. 2, the slit 11 and the inner peripheral edge portion 12 of the slit 11 have a lateral width capable of being covered.

The insertion locking portion 3 is formed so as to project from the inner side surface 21 of the interval holding portion 2, and can be inserted into the slit 11 with a diameter smaller than the slit width W, and can be expanded after being inserted into the slit 11. And is locked to the inner peripheral edge portion 12 along the slit 11 of the column 10. That is, the insertion locking portion 3 fixes the space holding portion 2 to the slit 11 from the side surface direction of the support column 10.

The insertion locking portion 3 in the present embodiment is composed of a pair of left and right plate-shaped members having a spring property, and a locking projection 31 formed by projecting outward is formed at the tip 32. Specifically, as shown in FIG. 3, it is made of a plate material having a spring property, the width of which in the up-down direction is narrower than the vertical width (height dimension) of the spacing member 2, and the spacing member 2 Is formed so as to project with the inner side surface 21 as the base end 33. The insertion locking portions 3 are provided so as to face each other with a space narrower than the slit width W therebetween. In addition, in this embodiment, the slits 11 are provided at two locations that are separated by a predetermined distance in the vertical direction in order to stably fix the slits 11.

The locking protrusion 31 is formed of a member having a spring property that is bent so as to expand outward from the distal end 32 of each insertion locking portion 3 toward the proximal end 33 side. Specifically, the front ends 32, 32 of the pair of left and right insertion locking portions 3, 3 are bent outward in the left and right directions to form a pair of left and right locking projections 31, 31. At this time, the distance width w1 that connects the respective tip portions is formed to be narrower than the slit width W. Further, as shown in FIG. 4, the locking projections 31, 31 have their respective ends on the side of the spacing member 2 contact the inner side surface 14 of the inner peripheral edge portion 12 along the slit 11 of the column 10 after insertion, The bending angle α (the left-right distance between the tips on the side of the distance holding portion 2) and the length are adjusted so that the distance width w2 connecting the base end portions of each other is formed to be wider than the slit width W. As a result, the tips of the locking protrusions 31, 31 are locked to the inner peripheral edge portion 12 of the slit 11 together with the inner side surface 21 of the spacing member 2.

The shape of the locking projection 31 is not limited to the shape bent from the tip 31 of the insertion locking portion 3, and, for example, as shown in FIG. 5, outside the tip 31 of the insertion locking portion 3. Alternatively, it may be formed in a solid and tapered arrow shape.

The lateral shift prevention convex portion 4 is locked to the inner peripheral edge portion 12 of the slit 11 when an external force in the lateral direction (circumferential direction) is applied to the space holding portion 2 in a state where the insertion locking portion 3 is inserted in the slit 11. The movement of the space holding unit 2 is regulated by this. The lateral shift prevention convex portion 4 in the present embodiment is formed on the inner side surface 21 of the spacing holding portion 2 outside the base end portion 33 of the insertion locking portion 3 along the vertical direction of the spacing holding portion 2. .. Each lateral deviation prevention convex portion 4 is located at a distance width w3 which is slightly narrower than the slit width W, and can be inserted into the slit 11. Further, the lateral deviation prevention convex portion 4 is projected so as to be equal to or higher than the thickness of the support column 10 so as to be reliably locked to the inner peripheral edge portion 12 of the slit 11. The lateral deviation prevention convex portion 4 has an arbitrary configuration, and whether or not to provide the lateral deviation prevention convex portion 4 may be selectively determined.

Next, the operation of the repair wire rope spacing member 1 and the method of repairing the wire rope protection fence 100 according to the present embodiment will be described.

The method for repairing the wire rope type protective fence 100 of the present embodiment uses the wire rope spacing member 1 for repairing the wire rope type protective fence 100 of the present embodiment when the wire rope type protective fence 100 is damaged due to a vehicle collision or the like. This is a repairing method for repairing the protection fence 100.

First, the damaged column 10 is replaced and a new column 10 is set up on the road (step S1). The column 10 is damaged by being opened from the slit 11 so as to be torn by an impact caused by a collision of a vehicle or the like. Therefore, it is necessary to erect a new column 10 on the road.

Next, the plurality of wire ropes 20 are collectively fitted from above into the slits 11 of the column 10 (step S2). When the plurality of wire ropes 20 are fitted together, the respective wire ropes 20 are bent by their own weights, their mutual intervals are not constant, and in some cases, they are not supported by the column 10. Therefore, the load of the wire rope 20 or the like is applied to the other column 10.

Therefore, the repair wire rope spacing member 1 is inserted into the slit 11 between the upper and lower wire ropes 20 from the outside (lateral direction) of the column 10 (step S3). Specifically, the tips of the pair of locking projections 31, 31 are fitted into the slit 11. The pair of locking projections 31 and 31 in the present embodiment are formed so that the distance width w1 connecting the tips of the locking projections 31 to each other is narrower than the slit width W, so that the positioning is easy. Then, the insertion locking portion 3 and the locking projection 31 are pushed into the slit 11.

The insertion locking portion 3 and the locking projection 31 are deformed inwardly by the pressure received by the locking projection 31 from the inner peripheral edge portion 12 along the slit 11, and are reduced in diameter smaller than the slit width W. Since the insertion locking portion 3 and the locking projection 31 have a spring property, the force pushed from the slit 11 at the time of insertion can be weakened, and the insertion locking portion 3 or the insertion locking portion 3 and the spacing holding portion can be weakened. It is possible to prevent damage to the joint portion with 2, and further to the inner peripheral edge portion 12 of the slit 11.

After the pair of locking projections 31 and 31 penetrates the slit 11, the pair of locking projections 31 are expanded and returned to the original state. Since the pair of the locking projections 31 and 31 are formed such that the front ends of the locking projections 31 on the side of the space holding portion 2, that is, the distance width w2 connecting the base end portions of the locking projections 31 to each other are formed wider than the slit width W. As shown, the slits 11 are locked to the inner peripheral edge portions 12 at both ends and fixed to the slits 11.

Thus, the repair wire rope spacing member 1 can be installed from the outside of the slit 11 with one touch. At this time, a plurality of repair wire rope spacing members 1 can be inserted into the wire ropes 20 existing above and below in any order, and the work can be simplified. Therefore, unlike the conventional case, it is not necessary to repeatedly insert the wire rope 20 and the spacer in the slit 11 in this order, and the working time for repair can be significantly shortened.

Moreover, the space|interval holding|maintenance part 2 supports the wire rope 20 at a predetermined vertical space|interval. Therefore, the movement of the wire rope 20 in the height direction is restricted. Further, the lateral shift prevention convex portion 4 is fitted into the inner peripheral edge portion 12 of the slit 11 to regulate the movement of the insertion locking portion 3. Therefore, even if the spacing member 2 receives a lateral external force, the slit 11 and the inner peripheral edge portion 12 of the slit 11 are covered. This can prevent rattling of the repair wire rope spacing member 1 and also prevent dust and the like from entering the support column 10. The repair work is completed by arbitrarily covering the opening at the upper end of the column 10 with the cap 5 for preventing dust and the like from entering the inside.

On the other hand, when the vehicle collides again with the post 10 after repair, the repair wire rope spacing member 1 does not regulate the opening of the slit 11. Therefore, even after the repair, the slit 11 is opened and the wire rope 20 is disengaged from the pillar 10 to prevent the vehicle from entering the opposite lane. it can.

According to the above repair wire rope spacing member 1 of the present embodiment and the repair method for the wire rope protection fence 100 using the same, the following effects can be obtained.
1. In the wire rope type protective fence 100, since the wire rope spacing member 1 for repair can be installed after a plurality of wire ropes 20 are fitted together in the slits 11 formed in the column 10, repairing is easy and quick. You can
2. It is possible to prevent the insertion locking portion 3, the locking projection 31, and the inner peripheral edge portion 12 of the slit 11 from being damaged during installation.
3. Since the lateral displacement after installation can be prevented, the locked state is not released, and dust and the like can be prevented from entering the support column 10.
4. Even if the vehicle collides again with the post 10 after repair, the opening of the slit 11 is not regulated, so the slit 11 opens and the original function of the wire rope type protective fence 100 is fully exerted. Can be made

The repair wire rope spacing member according to the present invention and the method for repairing the wire rope type protective fence using the same are not limited to the above-described embodiments, but can be appropriately changed. For example, the number of the pair of insertion locking portions 3 and 3 to be installed in the vertical direction is not particularly limited, and in consideration of the strength of the member, the ease of insertion into the slit 11, and the difficulty of removal after insertion. Therefore, it may be provided at only one place, or may be provided at three or more places at different height positions in the spacing member 2. Further, when a plurality of insertion locking portions 3 are provided, they are arranged so as to face each other at the same height in the vertical direction, but they may be arranged so as to be displaced in the vertical direction. Further, the material of the insertion locking portion 3 is not limited as long as it has a spring property, and may be made of synthetic resin, metal, or rubber. Further, the insertion locking portion 3 is not limited to a plate material, and may be a bar material having a circular, elliptical, or polygonal cross section.

1 Repair Wire Rope Spacer 2 Interval Holding Part 21 Inner Side 22 Outer Side 3 Insert Locking Part 31 Locking Protrusion 32 Tip 33 Base End 4 Side-Slip Prevention Convex 5 Cap 100 Wire Rope Protective Fence 10 Strut 11 Slit 12 Inside Edge portion 13 Outer side surface 14 Inner side surface 20 Wire rope W Slit width w1 Distance width connecting the tip ends of each other w2 Distance width connecting the base ends of each other w3 Distance width of each lateral deviation prevention convex portion α Bending angle of the locking protrusion

Claims (6)

In a wire rope type protective fence in which a plurality of wire ropes are stretched over a plurality of pillars arranged side by side, installed in a slit for wire rope support formed in the pillar to support the wire ropes. A wire rope spacing member for holding the vertical spacing of each wire rope,
A spacing holding portion having a height that sets the vertical spacing of each of the wire ropes and a lateral width that is larger than the slit width of the pillar,
It is formed so as to project from the inner side surface of the interval holding portion, and can be inserted into the slit by reducing the diameter smaller than the slit width, and then expands after being inserted into the slit and along the slit of the column. A repair wire rope spacing member having an insertion locking portion that locks to the inner peripheral edge portion. The repair wire rope according to claim 1, wherein the insertion locking portion is composed of a pair of left and right members having a spring property, and a locking projection formed by projecting outward is formed at a tip end of these members. Spacing material. The pair of the locking projections are formed such that the distance width connecting the distal end portions thereof is narrower than the slit width, and the distance width connecting the mutual base end portions is formed wider than the slit width. Item 2. The repairing wire rope spacer according to Item 2. The pair of the locking projections are formed by members having a spring property that are bent so as to expand outward from each other from the distal end of the insertion locking portion to the proximal end side. Spacing material for wire rope for repair as described. The repair wire rope spacing member according to any one of claims 1 to 4, wherein a lateral deviation prevention convex portion that is protruded so as to be fitted into the slit is formed on an inner surface of the spacing holding portion. A method for repairing a wire rope type protective fence, wherein a damaged pillar is replaced, a new pillar is erected on the road, and a plurality of wire ropes are collectively fitted from above into the slit of the pillar, and then from claim 1 The wire rope type, wherein the repair wire rope spacing member according to any one of claims 5 to 5 is inserted from the outside of the column into a slit between the upper and lower wire ropes to maintain the vertical spacing of each wire rope. How to repair the protective fence.

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