WO2010056018A2

WO2010056018A2 - Road guard rail

Info

Publication number: WO2010056018A2
Application number: PCT/KR2009/006540
Authority: WO
Inventors: 윤재근; 윤재경
Original assignee: 다산기업(주)
Priority date: 2008-11-12
Filing date: 2009-11-09
Publication date: 2010-05-20
Also published as: WO2010056018A3

Abstract

The present invention relates to a guard rail installed along both sides of a road, in which the surface of the connecting portion between the ends of adjacent guard rail bodies is flattened, and the exposure of bolt heads on the surfaces of the guard rail bodies is prevented, thereby achieving aesthetic enhancement for drivers, and reducing damage caused due to bolt heads. Vehicle crash damage is minimised in an inexpensive manner by providing said guard rail with a means of simple configuration for absorbing crash impact on said guard rail bodies. The guard rail of the present invention comprises a pillar (10) with the lower end driven deeply into the ground; a U-shaped bracket (20) fastened onto the pillar (10) by bolts (1) and nuts (2), the centre of which covers one side of the pillar (10) and the ends of which extend forwards toward the other side of the pillar (10); an inner rail (30) formed integrally with the bracket (20), having a rear joint portion (31) with bolt holes, and a cross sectional shape corresponding to that of the guard rail body; and a guard rail body (40) disposed in front of the inner rail (30), having a front joint portion (41) which engages with the rear joint portion (31) of the inner rail (30), and which is coupled to the inner rail (30) by fastening the rear joint portion (31) and the front joint portion (41) with bolts (3) and nuts (4).

Description

Guardrail on the road

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guard rail installed on both sides of a road, and more particularly, to flatten the surface of the connection portion between adjacent guardrail body ends and prevent the bolt head from appearing on the guard rail body surface. Minimizes the damage caused by a collision at a low cost by making it look aesthetically appealing and avoiding damage caused by bolt heads and absorbing the shock when the vehicle collides with the guard body. It is about road guardrail.

Guard rail means a protective measure installed on both sides of a road for the safety of road traffic on a motorway. It is mainly installed to prevent cars from falling off roads on mountain roads and winding roads. In cities, it is installed at the boundary between sidewalks and driveways to protect pedestrians. Mainly steel plate, pipe or wire is used. In particular, roads with severe bends are equipped with reflectors on guard rails to prevent drowsiness and fall when driving at night.

Such guardrails play a very important role for safety, especially on mountain trails. And because guardrail is a very important factor in determining the aesthetics of the road, it is desirable to make the driver feel comfortable and aesthetic without harming the aesthetics as much as possible.

The conventional guardrail made of steel plate is connected by fastening bolts and nuts directly to the bracket between them in order to connect the guard guard body with the support, and also the ends of the guard guard body overlapping with the adjacent guard guard body. To each other by fastening with bolts and nuts.

Conventional guardrails as described above are arranged so that the connecting portion between the adjacent guardrail body overlap each other and the head of the bolt is exposed to the surface does not give the driver a good feeling aesthetically.

In addition, even if the head of the bolt appearing on the surface of the guard guard body is rounded so as not to collect, a part of the vehicle may be caught by the bolt head during the collision of the vehicle, which may cause the risk of an accident being expanded.

In addition, there are many known means for absorbing the impact when a vehicle collides with the guard Japanese body, but the structure is complicated and the manufacturing cost increases.

The present invention has been made to solve the problems of the conventional guard rail as described above, flattening the surface of the connection between the end of the guard guard body, and prevents the bolt head from appearing on the guard guard body body looks aesthetically good feeling A road guard that minimizes the damage caused by a collision at a low cost by providing a simple structure to absorb the impact when the vehicle collides with the guardrail body while preventing the damage from the bolt head. The purpose is to provide a rail.

Road guardrail of the present invention for achieving the above object is a guard rail installed on both sides of the road for safety, the bottom end is embedded in the ground deep, and the support is installed by bolts and nuts, the central portion is one side of the support It has a U-shaped bracket that wraps and extends toward the other side of the post, and an inner rail that is integral with the bracket and is curved in cross section, and is disposed in front of the inner rail and forms a cross-sectional shape that matches the inner rail. In the road guardrail including a guard guard body coupled to the rail, the bolt hole through which the bolt penetrates the U-shaped bracket, the rear portion is the same as the threaded portion diameter of the bolt and the wedge-shaped hole is narrower toward the front. A bolt hole is formed in the inner rail, and the ball is disposed at a position corresponding to the bolt hole of the inner rail in the guard body. The tread is welded, and the inner rail and the guard Japanese body are joined by inserting the bolt portion of the guard Japanese body into the bolt hole of the inner rail and then tightening the nut.

In addition, a rear coupling portion in which a bolt hole is formed is formed in the inner rail, and a rear coupling portion is formed at the rear of the guard rail body to engage with the rear coupling portion of the inner rail, and the rear coupling portion is formed by a bolt and a nut. And the front coupling unit is characterized in that the coupling.

In the road guardrail of the present invention, the joints between adjacent guardrail body ends can be brought into contact with each other, so that the outer surface can be flattened, and the bolt head does not appear on the guard body body surface, so that the driver can feel aesthetically pleasing. When the vehicle collides with the guard body, the car body is caught by the bolt head so that the damage does not occur and the structure of the means for absorbing the impact when the vehicle collides with the guard body is simple and low cost. Minimize the damage caused by vehicle collision.

1 is a perspective view of a guard rail according to an embodiment of the present invention,

Figure 2 is a partially cutaway side view of the guardrail according to an embodiment of the present invention.

3 is a plan view of a guard rail according to an embodiment of the present invention;

Figure 4 is a partially cutaway side view of the guardrail according to another embodiment of the present invention.

1, 3: bolts 2, 4: nuts

10: holding 10a: lower portion

11: cover 11a: reflector mounting portion

12: first reflector 20: U-shaped bracket (bracket)

21: bolt hole 30, 30 ': inner rail

31: rear coupling portion 40, 40 ': guard Japanese body

41: front coupling 42: publicity display unit

43: second reflector

Road guardrail of the present invention is a guard rail installed on both sides of the road for safety, the bottom end is deeply embedded in the ground, and the support is installed by bolts and nuts in the support, the central portion wraps one side of the support and both ends of the other side of the support A U-shaped bracket extending forward, an inner rail integrally formed with the bracket and having a curved cross section, and having a cross-sectional shape disposed in front of the inner rail and mating with the inner rail, the guard rail coupled to the inner rail In the road guardrail including a main body, the bolt hole through which the bolt penetrates the U-shaped bracket is a wedge-shaped hole having a rear portion equal to the thread diameter of the bolt and narrowing toward the front, wherein the bolt hole is formed on the inner rail. The bolt part is welded to the guard rail body at a position corresponding to the bolt hole of the inner rail. The inner rail and the guard rail body are coupled by inserting the bolt part of the guard rail body into the bolt hole of the inner rail and then tightening the nut.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a guardrail according to an embodiment of the present invention, FIG. 2 is a partially cutaway side view of the guardrail according to an embodiment of the present invention, and FIG. 3 is a view of the guardrail according to an embodiment of the present invention. Top view.

As shown, the road guardrail according to an embodiment of the present invention is composed of a support 10, a U-shaped bracket 20, a fast rail 30, the guard rail body 40.

The strut 10 is designed so that the lower end is buried deep in the ground. The strut 10 is formed at its lower end 10a so that it can be easily driven when driven into the ground. The lower end portion 10a may have a conical shape as shown in FIG. 2 or may have other shapes. The upper end of the support 10 is covered with a cover 11, and a reflector mounting portion 11a is formed at the upper part of the cover 11. The first reflector 12 may be a form in which a reflector is coupled to a mold, or a form of a reflective paper attached to the mold. The first reflector 12 functions to guide the driver to drive safely by showing the outline of the road when the vehicle is driven at night.

Typically struts 10 are installed at 4M intervals.

U-shaped bracket 20 is installed by the bolt (1) and the nut (2) on the support 10, the central portion is wrapped in one side of the support 10, the U-shaped both ends extending toward the other road of the support (10) I'm in the form. On both sides in contact with the support 10, a plurality of bolt holes 21 through which the threaded portion of the bolt 1 penetrates are formed, and the bolt holes 21 are bolted to the rear portion as shown in FIG. It is the same as the threaded diameter of (1), and has a wedge-shaped hole shape that is narrower toward the front. The shape of the bolt hole 21 serves to primarily absorb shock when the vehicle collides with the guard rail body 40.

Sok rail 30 is integral with the bracket 20, the bolt hole is formed, the rear coupling portion 31 is formed, the cross section is bent and has a shape to be joined to the guardrail body 40. The rear coupling portion 31 is in the form of a concave groove and is formed in a plurality in the vertical direction.

The U-shaped bracket 20 and the fast rail 30 may be integrally formed by a mold when the material is FRP, and may be integrally formed by welding in case of steel, and other coupling means may be used. .

Guard guard body 40 is disposed in front of the inner rail 30 is formed with a front coupling portion 41 is engaged with the rear coupling portion 31 of the inner rail (30). The front coupling portion 41 is shaped to be inserted into the recessed groove of the rear coupling portion 31 described above. The front coupling portion 41 and the rear coupling portion 31 may have opposite shapes to each other.

The rear coupling portion 31 and the front coupling portion 41 are coupled by the bolts 3 and the nut 4 to couple the guard rail body 40 to the fast rail 30.

The guard rail body 40 and the inner rail 30 are formed in a shape that conforms to each other, and has a curved shape several times as in a normal form.

The promotional display portion 42 is formed on the surface of the guarded body 40. The publicity display unit 42 may make a promotional text or a picture appear at the same time when forming the guard Japanese body 40, and may form a display unit to enter a little inside and attach a sheet having a publicity display. The promotion contents of the publicity display unit 42 may display the name or mark of a road management agency such as "Ministry of Land, Transport and Maritime Affairs" and "Road Construction", and other promotional texts, pictures, etc. may be displayed to the driver. Or a sense of safety.

On the surface of the guarded body 40, a second reflector 43 can be further provided in the recess. The second reflector 43 may also be integrally formed with the guard elementary body 40 and may have a structure in which the second reflector 43 is combined with the guard elementary body 40. The second reflector 43 has the same function as the above-described first reflector 12. In some cases, the second reflector 43 may be provided only in the guarded body 40 without providing the first reflector 12 in the support 10.

The pillar 10, the U-shaped bracket 20, the inner rail 30, the guard rail body 40, the material of the fiber reinforced plastics (FRP), steel, or other strong strength material Can be.

Figure 4 is a partially cutaway side view of the guardrail according to another embodiment of the present invention. The guardrail of another embodiment differs from the above-described embodiment in the coupling structure of the inner rail 30 'and the guard rail body 40'. In the guard rail of this embodiment, a bolt hole is formed in the inner rail 30 ', and the bolt portion 41' is positioned at a position corresponding to the bolt hole of the inner rail 30 'in the guard rail body 40'. It is welded, and inserts the bolt portion 41 'of the guard rail body 40' into the bolt hole of the sock rail 30 'and then tightens the nut 31' so that the sock rail 30 'and the guard rail are fastened. The main body 40 'is coupled.

The road guardrail of the present invention configured as described above acts as follows.

In the present invention, the means for coupling the inner rails 30, 30 'and the guard rail bodies 40, 40' does not appear on the surface of the guard rail bodies 40, 40 '. That is, in the embodiment of FIG. 2, since the rear coupling portion 31 of the inner rail 30 and the front coupling portion 41 of the guard rail body 40 are formed at the rear of the guard rail body 40, the bolt 3 may be formed. The nut 4 does not appear on the surface of the guard body 40.

In the embodiment of FIG. 4, since the bolt portion 41 'is directly welded to the guard rail body 40' and the bolt hole penetrating the bolt portion 41 'is formed in the inner rail 30', the bolt portion ( 41 ') is inserted into the bolt hole of the inner rail 30' and tightened with the nut 31 ', the bolt head does not appear on the outer surface of the guard rail body 40'.

Therefore, when the vehicle crashes, the accident does not occur when the body of the vehicle is caught by the head of the bolt that couples the guard body.

As described above, the bolt heads do not appear on the surfaces of the guard guard bodies 40 and 40 ', and the connection parts with the adjacent guard guard bodies 40 and 40' are not overlapped but the end faces are in surface contact with each other. Take a butt connection method, or as shown in Figure 1 to form a stage to match each other at the end to form a butt connection method so that the jaw is not formed on the surface of the guard element 40, 40 ' It is aesthetically pleasing and gives the driver a sense of security. And the picture becomes very natural when the sheet with picture is attached to the entire surface of the guard body 40 (40 '),

In the guardrail of the present invention, since the bolt hole 21 of the bracket 20 is a wedge-shaped long hole, when the vehicle collides with the guard rail body 40 or 40 ', the bolt hole 21 is bolted ( It expands by 1) and absorbs shock primarily. Since the bolt hole 21 does not require a large cost, the low cost can be provided with a shock absorbing means.

Since the lower end portion 10a of the support 10 is sharply formed, the guardrail of the present invention can be easily driven deep into the ground by a driving method.

In addition, when the material of the guardrail is made of FRP, various designs and colors can be obtained. In particular, photos or logos according to the characteristics of the provinces may appear on the surface of the guard Japanese bonds 40 and 40 '. In case of manufacturing FRP, it is possible to prevent the occurrence of rust and to reduce the overall manufacturing cost because the price is low.

Although the invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made within the spirit and scope of the invention, and such changes or modifications are therefore to the appended claims. You will have to belong to the range.

Claims

As a guard rail installed on both sides of the road for safety, the bottom 10 is deeply embedded in the ground, and the support 10 is installed by bolts (1) and nuts (2) and the central portion of the support (10) U-shaped bracket 20 which wraps one side portion and both ends extend forward to the other side of the support 10, and the inner rail 30, 30 'which is integral with the bracket 20 and is curved in cross section, It is disposed in front of the rails 30, 30 'and has a cross-sectional shape that mates with the sock rails 30 and 30', and the guard rail body 40 is coupled to the sock rails 30 and 30 '. And a bolt hole 21 through which the bolt 1 penetrates the U-shaped bracket 20, the rear portion being the same as the thread diameter of the bolt 1 and having a narrow width toward the front. In the authorized road guardrail,

A bolt hole is formed in the inner rail 30 ', and a bolt portion 41' is welded to the guard rail body 40 'at a position corresponding to the bolt hole of the inner rail 30', and the guard The inner rail 30 'and the guard rail body 40' are inserted by inserting the bolt portion 41 'of the lean body 40' into the bolt hole of the inner rail 30 'and then tightening the nut 31'. Road guardrail, characterized in that to combine.
The rear coupling portion 31 is formed with a bolt hole in the inner rail 30, and the rear coupling portion of the inner rail 30 is formed behind the guard rail body 40. 31 is formed with a front coupling portion 41 engaged with the road guard, characterized in that the rear coupling portion 31 and the front coupling portion 41 are coupled by a bolt 3 and a nut 4. rail.