KR20090087215A

KR20090087215A - Guard fence for vehicle

Info

Publication number: KR20090087215A
Application number: KR1020080012520A
Authority: KR
Inventors: 양계승
Original assignee: 양계승
Priority date: 2008-02-12
Filing date: 2008-02-12
Publication date: 2009-08-17

Abstract

The present invention relates to a vehicle fence, a plurality of guard supports installed to be arranged in a line along the longitudinal direction of the road, and a wave-shaped guardrail plate supported on the guard support to be disposed along the longitudinal direction of the road, In the vehicle fence having a shock absorbing portion interposed between the guard rail plate and the guard column to absorb the impact energy applied to the guard rail plate during a vehicle crash, the shock absorbing portion has a tube-shaped absorbing wall portion And a shock absorbing block fixed to at least one of the guard column and the guard rail plate so that a wall portion is disposed along a height direction of the guard column in a region between the guard column and the guard rail plate. As a result, the vehicle impact energy can be absorbed efficiently.

Description

Guard Fence for Vehicle

1 is an installation state diagram of a protective fence for a vehicle according to an embodiment of the present invention,

FIG. 2 is a detailed view of the shock absorbing block and the shock absorbing plate region shown in FIG.

3 is a perspective view of the wire absorption assistant shown in FIG. 1;

Figure 4 is a guard wire installation state in the wire absorption aid shown in Figure 1,

5 and 6 are views illustrating a method of connecting the guard wire shown in FIG. 1, respectively.

7 is a state diagram of installation of a conventional vehicle fence;

FIG. 8 is a diagram illustrating guard wire installation in the wire fixing piece shown in FIG.

Explanation of symbols on the main parts of the drawings

11, 111: guard column 20, 120: guard rail plate

21, 121: rail plate flat part 22, 122: rail plate recess

30: shock absorbing unit 31: shock absorbing block

32: shock absorbing plate 33, 133: guard wire

40: wire absorption auxiliary portion 41: support piece

42: pressure piece 131: shock absorbing steel

The present invention relates to a protective fence for a vehicle, and more particularly, to a fence that is installed on the road to prevent the running vehicle from being separated from the safe driving region by using the tension of the guard wire.

Protective fences are used to protect driving vehicles in the central line area and the shoulder area of major roads such as highways and national roads.

FIG. 7 is a state diagram of a conventional vehicle fence fence, and FIG. 8 is a state diagram of a guard wire installation in the wire fixing piece shown in FIG. 7.

As shown in these drawings, a conventional vehicle fence is guard guard 111 which is installed to be arranged in a line along the longitudinal direction of the road, and a wave-shaped guard rail supported by the guard pillar 111. The board 120 and the guard rail plate 120 and the guard support 111 is provided between the shock absorbing portion 130 for absorbing the impact energy applied to the guard rail plate 120 during the vehicle crash.

The guard rail plate 120 includes a substantially rectangular rail plate flat portion 121 and a pair of rail plate recesses 122 extending along a direction away from each other at an upper edge and a lower edge of the rail plate flat portion 121. Have

Each rail plate groove portion 122 is formed along the longitudinal direction of the rail plate flat portion 121 so as to have a groove shape of the Diagonal cross section.

The guard rail plate 120 having such a configuration is disposed so that the recess opening of the rail plate recess 122 faces the guard column 111.

The shock absorbing unit 130 is a shock absorbing steel 131 of the end surface of the magnet coupled to the guard column 111, the support piece 152 in contact with the guard rail plate opposite surface of the shock absorbing steel 131, and the support piece U-bolts 154 for fixing 152 to the impact-absorbing steel 131, and a pair of rails disposed along the longitudinal direction of the guard rail plate 120 at the rear of the guard rail plate 120. It has a guard wire 133.

The impact absorbing steel 131 is formed to have a recessed cross-sectional shape.

The support piece 152 has a rectangular support plate 152a and a pair of support walls 152b standing up so as to oppose from the plate surface of the support plate 152a.

The support piece 152 having such a structure is disposed such that the support wall 152b faces the guardrail plate 120 in a region facing the groove space of the rail plate recess 122.

The guard wire 133 is installed to pass through the space between the u-bolt 154 and the support piece 152. Here, the guard wire 133 is installed to be in pressure contact with the u-bolt 154. Accordingly, the guard wire 133 is to form a bone in the interior of the support piece 152.

Referring to the operation during the vehicle crash of the shock absorbing unit 130 having such a configuration as follows.

When the vehicle collides with the guard rail plate 120, the guard rail plate 120 is deformed and the impact energy of the vehicle is transmitted to the shock absorbing steel 131 and the guard wire 133 through the guard rail plate 120, respectively.

The vehicle shock energy transmitted to the shock absorbing steel 131 is absorbed by the shock absorbing steel 131 through a deformation in which the contact area of the guard rail plate 120 of the shock absorbing steel 131 is bent toward the guard column 111. do.

The vehicle impact energy transmitted to the guard wire 133 is absorbed by the guard wire 133 through the stretching operation of the guard wire 133.

However, according to the conventional vehicle protective fence, because the absorption of the vehicle impact energy occurs through the bending process in a part region (contact area of the guard rail plate) of the impact-absorbing steel 131 does not efficiently absorb the vehicle impact energy. There was this. In order to compensate for the deficiency of the vehicle shock absorption, when the vehicle increases the thickness of the guard rail plate 120 or reinforces the guard column 111 (installing a reinforcement block of concrete material at the bottom of the guard column, etc.) Another problem arises, in that the impact applied increases.

It is therefore an object of the present invention to provide a protective fence that can efficiently absorb vehicle impact energy.

The object is, according to the present invention, a plurality of guard column is installed to be arranged in a line along the longitudinal direction of the road, the wave-shaped guard rail plate supported on the guard column to be disposed along the longitudinal direction of the road, and A vehicle fence having a shock absorbing portion interposed between a guard rail plate and the guard column to absorb impact energy applied to the guard rail plate during a vehicle crash, wherein the shock absorbing portion has a tubular absorbing wall portion. And a shock absorbing block fixed to at least one of the guard column and the guard rail plate so as to be disposed along a height direction of the guard column in an area between the guard column and the guard rail plate. Is achieved by the fence.

Here, the shock absorbing portion is disposed away from the guard rail plate along the traveling direction of the vehicle so as to reduce the impact energy transmitted to the guard column when a large vehicle with a high vehicle height collides with the guard rail plate, and the absorption wall It is preferable to further include a shock absorbing plate installed inside the absorbing wall portion so as to be spaced apart from the lower end of the portion.

In addition, it is preferable that the impact absorbing plate has a bent rib formed between the upper ends of the shock absorbing plate so that the shock absorbing plate can be easily installed and the amount of shock absorbing in the shock absorbing plate can be increased.

In addition, the shock absorbing portion can reduce the extension section of the guard wire, increase the tension range of the guard wire and increase the vehicle impact energy transmitted from the guard rail plate to the shock absorbing block, the shock absorbing portion of the support plate and the support plate A support piece having three support walls erected so as to face from the plate surface, and a pair of pressure walls erected so as to oppose from the plate surface of the pressure plate, and the pressure wall being disposed between the support walls. A wire absorption auxiliary part fixed to at least one of the shock absorbing block and the guard rail plate through the support plate and the pressure plate and having a pressure piece coupled to the support piece; and a rear side of the guard rail plate. Disposed along the longitudinal direction and passing through the support groove and the pressing groove; It is preferable to comprise so that the guard wire further installed.

In addition, in order to stably maintain the initial installation state of the guard wire in the wire absorption aid, the support wall is formed with a support groove at the end, the pressure wall is formed with a pressing groove at the end, the pressure piece is the It is preferable that the pressing groove is coupled to the support piece so as to face the support groove.

In addition, the support so as to maintain the initial installation state of the guard wire in the wire absorption aid and to further limit the extension of the guard wire of the section disposed on the outside of the wire absorption aid located on both sides around the collision point, It is preferable that the tooth is formed in at least one of the groove and the pressurized groove.

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

1 is a state diagram of the installation of a vehicle fence according to an embodiment of the present invention, Figure 2 is a detailed view of the shock absorbing block and the shock absorbing plate region shown in Figure 1, Figure 3 is a wire absorption aid shown in Figure 1 4 is a diagram illustrating a state of installing guard wires in the wire absorption auxiliary unit shown in FIG. 1, and FIGS. 5 and 6 are views illustrating a method of connecting the guard wires shown in FIG.

As shown in these figures, a vehicle fence fence according to an embodiment of the present invention, a plurality of guard column 11 is installed to be arranged in a line along the longitudinal direction of the road, and the wave support supported by the guard column 11 A shock absorbing part for absorbing the impact energy applied to the guard rail plate 20 during a vehicle crash, interposed between the wave-shaped guard rail plate 20 and the guard rail plate 20 and the guard column 11. Has 30.

The guard column 11 has a hollow support body portion 11a and a support cap 11b coupled to the upper end of the support body portion 11a.

The guard rail plate 20 includes a substantially rectangular rail plate flat portion 21 and a pair of rail plate recesses 22 formed along a direction away from each other at an upper edge and a lower edge of the rail plate flat portion 21. Have

Each of the rail plate recesses 22 is formed to have a recess shape of approximately a recessed end face.

The guard rail plate 20 having such a configuration is provided so that the recess opening of the rail plate recess 22 faces the guard column 11.

The shock absorbing unit 30 includes a shock absorbing block 31 interposed between the guard rail plate 20 and the guard column 11, a shock absorbing plate 32 provided inside the shock absorbing block 31, and a shock. The wire absorption auxiliary part 40 fixed to the absorption block 31 and the pair of guard wires 33 which are arrange | positioned in the longitudinal direction of the guard rail board 20 in the back of the guard rail board 20 are included.

The shock absorbing block 31 has a tubular absorption wall portion 31a having a substantially square cross section, and a block bottom portion 31b formed to seal the lower opening of the absorption wall portion 31a.

The shock absorbing block 31 having this configuration is fixed to the guard column 11 through the citron (U) type block bracket 51 so that the absorbing wall portion 31a is disposed along the height direction of the guard column 11. It is fixed to the guard rail plate 20 through the bolt.

The shock absorbing plate 32 is formed to have a height section smaller than that of the absorbing wall portion 31a, and the bending ribs 32a are formed in the entire upper section.

The shock absorbing plate 32 having such a configuration is disposed along the diagonal direction gradually away from the guardrail plate 20 along the traveling direction of the vehicle in the diagonal direction of the absorbing wall part 31a and absorbing wall part through the bent rib 32a. It is provided in the inside of the absorption wall part 31a so that it may be supported by the upper end of 31a.

Accordingly, the shock absorbing plate 32 is disposed farther from the guardrail plate 20 in the traveling direction of the vehicle and spaced apart from the lower end of the absorbing wall portion 31a.

The wire absorption auxiliary part 40 has a support piece 41 coupled to the absorption wall portion 31a and a press piece 42 coupled to the support piece 41.

The support piece 41 has a rectangular support plate 41a and three support walls 41b which are standing up so as to oppose from the plate surface of the support plate 41a.

Each support wall 41b is formed so that the support groove 41c may be arrange | positioned linearly in the terminal.

A tooth 41d is formed in the support groove 41c.

The support piece 41 having such a configuration is coupled to the shock absorbing block 31 in a region facing the recess space of the rail plate recess 22.

The press piece 42 has a rectangular press plate 42a and a pair of press walls 42b which stood up so that it may face from the plate surface of the press plate 42a.

Each press wall 42b is formed so that the press groove 42c may be arrange | positioned linearly in the terminal.

A tooth 42d is formed in the pressing groove 42c.

In the pressing piece 42 having such a configuration, the pressing piece 42b is disposed between the supporting walls 41b and the pressing piece 42c faces the supporting groove 41c so that the pressing piece 42c faces the supporting groove 41c. 41).

The guard wire 33 is divided into a plurality, and is connected to each other through the wire fixing piece 52 and the wedge 53.

The wire fixing piece 52 has a rectangular fixing plate 52a and a hill 52b protruding from the fixing plate 52a.

A pair of wire holes 52c are formed through the hill portion 52b. The wire hole 52c is formed to have an enlarged diameter portion having a cross section corresponding to the appearance of the wedge 53.

The wire fixing piece 52 having such a configuration is coupled to the shock absorbing block 31 such that the wire hole 52c is parallel to the ground and the fixing plate 52a faces the groove space of the rail plate recess 22.

The wedge 53 has three compression parts 53a and the elastic line 53b which surrounds the compression part 53a.

Each compression unit 53a is formed to be separated from each other.

The wedge 53 which has such a structure is attached to the enlarged diameter part of the wire hole 52c in the state which the guard wire 33 entered into the space | interval of the compression part 53a. Here, the operation of entering the guard wire 33 into the wedge 53 is performed in a state in which the guard wire 33 is pulled to have a tension slightly larger than the desired tension. Accordingly, the guard wire 33 can maintain the tension state.

And guard wire 33 is installed to pass through the support groove 41c and the pressing groove 42c in the following way.

First, the guard wire 33 is inserted into the support groove 41c and the pressure groove 42c.

Next, the pressure piece 42 is made to approach the support piece 41 by tightening a bolt.

Referring to the operation during the vehicle collision of the shock absorbing unit 30 having such a configuration as follows.

When the vehicle collides with the guard rail plate 20, the guard rail plate 20 is deformed and the impact energy of the vehicle is transmitted through the guard rail plate 20 to the shock absorbing block 31, the guard wire 33, and the shock absorbing plate ( Large vehicles with high body height collide with the guardrail plates).

The vehicle shock energy transmitted to the shock absorbing block 31 is absorbed by the shock absorbing block 31 through the deforming operation (crushing of the absorbing wall part) of the shock absorbing block 31.

And the vehicle impact energy transmitted to the guard wire 33 is absorbed by the guard wire 33 through the stretching operation of the guard wire 33.

In addition, the vehicle shock energy transmitted to the shock absorbing plate 32 is absorbed by the shock absorbing plate 32 through the bending deformation of the shock absorbing plate 32.

According to the embodiment of the present invention as described above, the impact absorbing block 31 having the tubular absorbing wall portion 31a is installed in the region between the guard column 11 and the guard rail plate 20 to provide a vehicle impact energy. It is possible to efficiently absorb the vehicle impact energy by causing the absorption of the to occur through the crushing process in most areas (except the contact area of the guard column) of the shock absorbing block 31.

In addition, by installing the shock absorbing plate 32 inside the absorbing wall portion 31a, when a small vehicle having a low vehicle height collides with the guard rail plate 20, the vehicle body height is high while not increasing the impact applied to the collision vehicle. When the large vehicle collides with the guard rail plate 20, it is possible to reduce the impact energy transmitted to the guard column (11).

In addition, by forming the bending ribs 32a in the entire upper end section of the shock absorbing plate 32, the installation of the shock absorbing plate 32 is facilitated and the amount of shock absorbing in the shock absorbing plate 32 can be increased (bending Ribs contribute to the absorption of impact energy).

It is also provided with a support piece 41 having three support walls 41b and a pair of pressure walls 42b, and coupled to the support pieces 41 such that the pressure walls 42b are disposed between the support walls 41b. By providing a wire absorption auxiliary portion 40 having a pressing piece 42 to be reduced, it is possible to reduce the extension section of the guard wire 33 (when the vehicle crash) and increase the tension control range of the guard wire 33 It is possible to increase the vehicle impact energy transmitted from the guard rail plate 20 to the shock absorbing block 31 (at the time of installation work).

In this case, it is possible to reduce the extension section of the guard wire 33 when the vehicle crashes, the guard wire 33 is formed on the inside of the support piece 41 on both sides of the collision point by forming two valleys and one floor. This is because the elongation of the guard wire 33 in the section disposed outside the wire absorbing auxiliary part is limited (in the case of the conventional vehicle protective fence shown in Fig. 7, the guard wire forms a valley inside the support piece and collides with it). It is difficult to limit the extension of the guard wire in the support piece existing on both sides of the point and the section arranged outside the u-bolt).

And it is possible to increase the tension control range of the guard wire 33 during the installation work, the guard wire 33 in the interior of the support piece 41 to form two valleys and one floor to support the pressing piece 42 This is because the tension of the guard wire 33 is increased by a length section corresponding to four times the increase in approach distance when approaching the piece 41 (in the case of the conventional vehicle protective fence shown in Fig. 7, the guard inside the support piece). The tension of the guard wire increases by a length equal to 2 times the increase in approach distance when the wire forms a valley and approaches the u-bolt to the support).

In addition, it is possible to increase the vehicle impact energy transmitted from the guard rail plate 20 to the shock absorbing block 31 is that the support piece 41 and the pressing piece 42 in three places in the opposite direction to the guard wire 33 This is because it is pressurized (in the case of the conventional vehicle protective fence shown in Fig. 7, the u-bolt pressurizes the guard wire at one place).

As such, when the extension section of the guard wire 33 is reduced, the amount of extension of the guard wire 33 can be kept smaller than the deformation amount of the guard rail plate 20 during the vehicle collision, so that the shock absorption function of the guard wire 33 can be stably maintained. When the tension control range of the guard wire 33 is increased, the tension of the guard wire 33 can be adjusted by adjusting to the relaxation state of the guard wire 33 according to the temperature rise, and from the guard rail plate 20. When the vehicle shock energy transmitted to the shock absorbing block 31 is increased, the vehicle shock energy can be absorbed more in the shock absorbing block 31.

In addition, the support groove 41c is formed at the end of the support wall 41b, and the press groove 42c is formed at the end of the pressure wall 42b, so that the initial installation of the guard wire 33 in the wire absorption aid 40 is performed. The state can be kept stable.

In addition, by forming the teeth 41d, 42d in the support groove 41c or the pressure groove 42c, it is possible to stably maintain the initial installation state of the guard wire 33 in the wire absorption aid 40, and to reduce the collision point. It is possible to further limit the extension of the guard wire 33 in the section disposed on the outside of the wire absorption auxiliary portion 40 existing on both sides as a center.

Meanwhile, the protection fence described in the above-described embodiment may be installed in the road shoulder area of the road as well as the center line area of the road.

Therefore, according to the present invention, by installing a shock absorbing block having a tube-shaped absorbing wall portion between the guard column and the guard rail plate so that the absorption of vehicle impact energy occurs through the process of crushing in most areas of the shock absorbing block. In addition, the vehicle impact energy can be absorbed efficiently.

Claims

A plurality of guard posts arranged to be arranged in a line along the longitudinal direction of the road, a wave-shaped guard rail plate supported on the guard posts to be arranged along the longitudinal direction of the road, and between the guard rail plate and the guard posts. In the vehicle fence having a shock absorbing portion that absorbs the impact energy applied to the guard rail plate when the vehicle crashes through,

The shock absorbing portion has a tubular absorbing wall portion, and the absorbing wall portion is disposed in at least one of the guard column and the guard rail plate such that the absorbing wall portion is disposed along a height direction of the guard column in a region between the guard column and the guard rail plate. A protective fence for a vehicle comprising a fixed shock absorbing block.

The method of claim 1,

And the shock absorbing part further comprises a shock absorbing plate disposed in the absorbing wall part so as to move away from the guardrail plate along the traveling direction of the vehicle and spaced apart from the lower end of the absorbing wall part.

The method of claim 2,

The shock absorbing plate is a vehicle fence, characterized in that the bending ribs are formed between the top of the whole.

The method according to any one of claims 1 to 3,

The shock absorbing portion includes a support piece having three support walls that are erected to face the support plate and the plate surface of the support plate, and a pair of pressure walls that are erected to face the plate and the plate surface of the pressure plate. A wire absorbing auxiliary part having a pressing piece coupled to the supporting piece such that a wall is disposed between the supporting wall and fixed to at least one of the shock absorbing block and the guard rail plate through the supporting plate and the pressing plate; The guard fence for a vehicle, characterized in that it further comprises a guard wire disposed in the longitudinal direction of the guard rail plate in the rear of the plate and installed to pass through the support groove and the pressing groove.

The method of claim 4, wherein

The support wall is formed with a supporting groove at the end, the pressure wall is formed with a pressing groove at the end, the pressing piece is characterized in that the pressing groove is coupled to the support piece so as to face the supporting groove. Automotive fences.

The method of claim 5,

At least one of the support groove and the pressure groove is a vehicle protective fence, characterized in that the tooth is formed.