KR101851953B1 - Guard rail with structure for shock absorption and climb-over prevention - Google Patents

Abstract

The present invention relates to a guard rail having a shock absorption and climbing prevention structure. The present invention can protect a driver by mitigating impact of a automobile through plastic deformation of a partial structure and a multiple buffer structure at a time of automobile collision and preventing the collided automobile from climbing/rollover. For the above purpose, the present invention comprises: a block-out; a shock absorbing plate; a fixture; and rails.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a guard rail having a shock-

The present invention relates to a guard rail, and more particularly, to a guard rail that relieves a shock of a vehicle through plastic deformation of a partial structure and a cushioning structure at the time of a vehicle collision, And a guard rail having a roll-over prevention structure.

Guard rails installed at the center of a road or both sides of a road on which a vehicle travels are safety equipment for invading a center line of a vehicle, preventing a road departure, entering or falling into a sidewalk, and are usually installed at regular intervals. And a fence formed by the rail connected continuously in the horizontal direction.

Such a guard rail basically functions to prevent a secondary accident by restricting the departure of a vehicle out of the normal path, and by absorbing the collision energy through plastic deformation when the vehicle collides with the vehicle, it is possible to reduce the damage of the vehicle and the injury of the occupant It is being developed as a structure.

However, due to the cost structure and the material limit of the guard rail installation, there is a limit to the absorption of the impact energy, so that the vehicle damage due to the excessive impact at the time of collision of the vehicle running at high speed and the driver's injury still occur.

Particularly, when a vehicle is caught by a guard rail structure damaged during a vehicle collision due to a structure in which a bolt and a nut are used for coupling and fixing a buffer structure such as a strut and a rail and a tip of the coupling means protrudes outward, It is the role of the guard rail installed for the safety such as the accident of the second accident or the overturning due to the accident when the SUV, This has been an inconvenient problem.

In order to solve this problem, research and development have been carried out for the structure of the guard rail and the safety for securing safety, including height adjustment and strength reinforcement work of the conventional installed guard rails, but the reinforcement work of the guard rails is performed by replacing the installed guard and the existing guard rail , The replacement cost is very high, and the research and development achievements are also complicated due to the complicated structure, which makes it difficult to produce, install, and repair.

Korean Patent No. 10-1250534 (March 31, 2013)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a method for effectively mitigating an impact at the time of a vehicle collision through plastic deformation of a structure and multiple cushioning structures, The present invention provides a guard rail having a shock absorbing and rolling gate preventing structure capable of preventing a car from being rolled or rolled up.

In order to achieve the above object, according to the present invention, there is provided a guard rail comprising a support having a lower end fixed to a floor surface and a rail transversely engaged with the support, wherein the left and right end portions are bent backward, A blockout having balls formed therein and coupled to both sides of the support via fastening means passing through the fastening holes and having a deforming portion for inducing bending downward when impacted; An impact absorbing plate contacting the front surface of the block-out, the upper and lower end portions forming an insertion space and being bent to partially cover the front surface; A fixing table coupled to cover a part or the entirety of the shock absorbing plate front face; A rail which is folded backward at the upper and lower ends so as to form a cushioning space on the rear surface thereof and is inserted and fixed in the insertion space through the space between the shock absorbing plate and the fixing table; .

The fastening means may be formed of a bolt and a nut, and the fastening hole may have a shape of a long hole having a length in the forward and backward direction and a pair of protrusions formed to have an inner diameter relatively smaller than an outer diameter of the bolt.

Further, the fastening hole may be formed to have a downward inclination toward the front surface.

In addition, the rails may have a convex shape on the front side, and a groove may be formed in the center in the transverse direction to improve the strength.

It is also preferable that the rail has a continuous connection structure in the transverse direction through a sleeve whose one end portion surrounds the outer side of the rail and the other end portion is inserted into the adjacent rail.

The present invention safely induces plastic deformation and breakage direction in addition to multiple shock mitigation in the event of a collision of a vehicle, thereby effectively preventing secondary accidents and rollovers occurring when a vehicle is caught on a guardrail structure or over a guardrail and a guardrail can do.

1 is a front view according to an embodiment of the present invention;
2 is a perspective view of an embodiment of the present invention,
3 is a plan sectional view according to one embodiment of the present invention,
4 is a cross-sectional side view according to one embodiment of the present invention,
5 is a side sectional view according to some modification of the first embodiment of the present invention,
6 is a cross-sectional view showing a connection structure of a rail according to an embodiment of the present invention,
7 is a cross-sectional view showing a connection structure of a rail according to some modification of the first embodiment of the present invention,
8 is a side cross-sectional view according to two embodiments of the present invention,
9 is a plan view according to the second embodiment of the present invention,
10 is a side sectional view according to the third embodiment of the present invention,
11 is a plan view according to the third embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the structure of a guard rail having a shock absorption and rollover preventing structure according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view according to one embodiment of the present invention, and FIG. 2 is a perspective view according to an embodiment of the present invention. 3 is a plan sectional view taken along line B-B 'of FIG. 2, and FIG. 4 is a side sectional view of another embodiment of the present invention, - A '.

The present invention is basically a guard rail in the form of a fence (fence) composed of a pillar fixed to the bottom surface and a rail 150 coupled transversely to the pillar 110. The guard rail includes a blockout 120, The plate 130, the fixing table 140, and the rail 150. [

The pillars 110 are formed of steel pipes and are vertically buried on the ground, and are installed at regular intervals along the road. It can be made into various standards suitable for the road environment, and it is preferable to use a round or square steel pipe. At this time, when an external impact occurs, stress may be concentrated on the contact portion between the pillar and the ground, so that the pillar-like reinforcing pillar 111 is installed at the contact portion between the pillar 110 and the ground, .

The block-out 120 is made of a metal plate, and its left and right ends are bent backward to be coupled to both sides of the pillars 110. That is, as shown in FIG. 3, when viewed from the upper side, the central portion is bent to have a width corresponding to the outer diameter of the strut, So that it can be covered. It should be apparent to those skilled in the art that although the preferred embodiments of the present invention are illustrated with the bent angle being perpendicular to each other,

A fastening hole 121 having a longitudinal length is formed on both sides of the bent block out 120 and is coupled to both sides of the support via fastening means 160 passing through the fastening hole 121, A buffer space S1 is formed at the center of the block 110 and the block-out 120 so that the block-out 120 is pushed backward by the buffer space S1 when an impact is generated at the front, .

At this time, the fastening means 160 is composed of bolts and nuts, and each of the left and right folded surfaces forms two or more fastening holes 121 vertically. Although two fastening holes 121 are formed on each side in the accompanying drawings, it is also possible to form a proper number of fastening holes 121 in accordance with the installation specifications to couple the pillars 110 and the block- It is self-evident. In the present invention, the fastening means for coupling the block-out 120 and the support 110 through the fastening hole 121 is referred to as a first bolt 161.

It is preferable that the first bolts 161 pass through the right and left sides of the strut 110 and pass through the fastening holes 121 formed on both sides of the blockout 120, The angular maintenance of the rail 150 to be installed on the front surface and the impact dispersion to the left and right fastening portions can be made even.

In addition, in the present invention, at least one pair of protrusions 122 is formed in the fastening hole 121 so as to be smaller in inner diameter than the outer diameter of the first bolt 161. As described above, when the blockout 120 is pushed rearward due to an impact, the first bolt 161 may be detached from the first bolt 161 when the impact is concentrated on the fastening portion using bolts and nuts in the event of a vehicle collision. A resistance is generated at the contact portion between the protruding portion 122 and the protruding portion 122 and the buffering action corresponding to the number of the protruding portion 122 is performed as the first bolt 161 is pushed while damaging the protruding portion 122.

In addition, in the present invention, the block-out 120 is formed with a deforming portion 123 for guiding the bending from the front to the lower side when the vehicle is impacted.

As mentioned above, due to factors such as the height and shape of the collided vehicle, the angle and the speed at the time of collision, the vehicle enters the guard rail, and enters into the lead, the paddy fields and the cliff. have.

The deforming portion 123 is a structure for preventing the collision of the collided vehicle. As shown in the drawing, the deforming portion 123 is formed in a shape below the blockout 120 located in the buffer space S1 between the strut 110 and the strut 110 By forming the groove, the impact applied from the front surface is concentrated, and the entire block-out 120 induces bending to be bent downward, thereby suppressing the action force of the impacted vehicle to move upward.

5 is a sectional side view according to some modification of the first embodiment of the present invention. In addition to the deformed portion 123, the fastening hole 121 is formed to have a downward inclination toward the front, Can be obtained.

The shock absorbing plate 130 is a metal plate coupled to the front surface of the block-out 120, and has upper and lower ends bent or folded to partially cover the entire surface. At this time, the folded upper and lower end portions are separated from the unfolded portion to form an insertion space 131. In addition, it is preferable that the folded height of the upper and lower sides is matched with the height of the block-out 120, and a drain (R) for preventing the rainwater impregnated in the rainwater from being corroded in the lower insertion space may be formed.

The fixing table 140 is configured to fix and join the shock absorption plate 130, the block-out 120 and the rail 150. The fixing plate 140 is made of a metal plate covering a part or the whole of the front surface of the shock absorption plate 130 And is coupled through the fixing means 140, the shock absorbing plate 130 and the block-out 120 through fastening means penetrating in the front-rear direction.

In one embodiment of the present invention, fastening means for passing through the pillars 110 from the shock-absorbing plate 130 are provided using long bolts and nuts of a sufficient length, and the second bolts 162 are referred to separately.

3, the fixing table 140 and the shock absorber 130 do not move, and the fixing bolt 140 and the impact absorbing plate 130 are fixed to each other, There is provided a fastening means for fastening the fastening table 140 and the shock absorbing plate 130 to the left and right sides of the second bolt 162 so as to maintain the coupling with the blockout 120, 3 bolts (163).

The third bolt 163 may be coupled to the inside of the block-out 120 in the vicinity of the second bolt 162. In an embodiment of the present invention, Out portion 120 is bent so that it can be bent toward the front side and the cut portion is brought into contact with the shock absorbing plate 130 on the front side and the third bolt 163 to the fixing table 140 And is coupled through. Through this, it is possible to achieve a more stable fixing / coupling structure by widening the area due to contact and coupling.

The thickness of the impact absorbing plate 130 and the thickness of the insertion space 131 are formed on the upper and lower sides of the front fixing plate 140 of the impact absorbing plate 130. [ A bent portion is formed at a height corresponding to the height of the protrusion 131.

The upper and lower ends of the rails 150 are bent rearward so as to form a buffer space S2 between the rear surface of the rail 150 and the fixing table 140 And the bent end is inserted into the insertion space 131 through the space between the shock-absorbing plate 130 and the fixing table 140.

4, the rail 150 can be easily installed by pushing the rail 150 in a sliding manner from the side of the block-out 120 provided with the fixing table 140. As mentioned above, And is firmly fixed to the impact absorbing plate 130 through the fixing plate 140. [0033] The shock absorbing plate 130 is formed of a metal plate,

At this time, the rails 150 are convex to the front, effectively dispersing the impact of the front side to the upper and lower sides, and the grooves 151 are formed continuously in the middle at the center to improve the strength, ), It induces the deformation to occur at the central portion, thereby preventing the vehicle from being damaged and the occupant injuries due to the irregular shape breakage.

In the coupling structure of the support and the rail 150 through the block-out 120, the block-out 120 and the shock-absorbing plate 130 (not shown), which are not a direct connection between the support and the rail using bolts and nuts, And the buffer space S1 and S2 formed in the rail 150 and the block-out 120, as well as the plastic deformation section formed through the fixing table 140 and the fixing table 140. [

In addition, even when the guard rail is broken due to impact, the bolt fastening portion is not damaged as in the prior art but has a structure for guiding the breakage direction. Particularly, since the rail 150 is installed without using the fastening means, It is possible to prevent injury and effectively cope with contraction / expansion of the rail due to thermal expansion in the summer.

6 is a cross-sectional view illustrating a connection structure of a rail according to an embodiment of the present invention. In the present invention, a guard rail is formed in a fence shape continuously formed in a transverse direction, .

6, the sleeve 153 has an outer shape corresponding to the inner shape of the rail 150 and is coupled with two rails 150 to be adjacent to both ends. In one embodiment of the present invention, two first through holes 152 vertically penetrating the ends of the respective rails 150 are formed, and the first through holes 152 corresponding to the first through holes 152 are formed at both ends of the sleeve 153 The second through hole 154 is formed and the fourth bolt 164 as the fastening means passes through and simultaneously passes through the first through hole 152 and the second through hole 154 in the overlapped state.

Of course, the numbers of the first through holes 152 and the second through holes 154 may be appropriately increased or decreased according to the installation specifications. Preferably, the second through holes 154 are formed as long holes having a length in the left and right direction So that it is possible to prevent shocks and breakage through the elongated holes when an impact is generated at the connecting portion of the rail 150. [

7 is a cross-sectional view showing a connection structure of a rail according to some modification of the first embodiment of the present invention.

There is a great possibility that the rail 150 is bent and a fracture occurs at a portion where the two rails 150 and the sleeve 153 are engaged when a vehicle collision occurs at a position where the pillar 110 is substantially absent. At this time, since the breakage of the metal material rail 150 may lead to vehicle breakage or injury, it is necessary to suppress as much as possible the occurrence of the sharp portion and the protrusion of the rupture portion corresponding to the collision direction of the vehicle, even if rupture occurs.

7 shows a state in which the vehicle progresses from the right side to the left side. In the second embodiment of the present invention, one end of the sleeve 153 surrounds the outer side of the rail 150 and the other end thereof surrounds the adjacent rail 150 The second through hole 154 of the elongated hole shape described in the first embodiment is formed at one end of the sleeve 153 so that the shock absorbing sleeve 153 is inserted into the rail 150 So that it is possible to prevent the breaking direction from being directed toward the collision (traveling) direction of the vehicle.

FIG. 8 is a side sectional view according to the second embodiment of the present invention, and FIG. 9 is a plan view according to the second embodiment of the present invention.

The block out 120 and the support 110 are bent in a " C " shape when viewed from above, and are not inserted into the front surface of the support, And the coupling structure through the fastening hole 121 and the first bolt 161 is the same as that of the first embodiment.

The shock absorbing plate 130 of the same type as that of the first embodiment is coupled to the front of the block-out 120 through the support and the block-out 120, And the fixing table 140 having a shape protruding to the front is coupled through the third bolt 163 having a relatively long length. Then, the rail 150 is installed in the same manner as in the first embodiment.

In other words, the shape of the same configuration introduced in the first embodiment is partially modified, and the structure and function of each structure are the same or similar.

FIG. 10 is a side sectional view according to the third embodiment of the present invention, and FIG. 11 is a plan view according to the third embodiment of the present invention.

In the same manner as the above-described embodiment, the components are the same, except that the rail 150 is partially protruded to the lower side of the block-out 120 not at the same height as the block-out 120, Suppresses the action force.

In addition, the upper and lower end portions of the fixing table 140 are not in close contact with the rear side, but are folded so as to spread toward the front, so that the rail 150 is impacted when the deformation occurs, thereby partially canceling the impact.

In the illustrated embodiments 1 to 3, some of the configurations are shown as modified, but it is obvious that the same or similar effects can be obtained by combining these modifications in the same configuration.

It is to be understood that the present invention is not limited to the above-described embodiments, but may be modified in various ways within the scope and spirit of the present invention as defined by the appended claims. It is self-evident.

110: column 111: reinforced column
120: Block Out 121: Fastening Ball
122: protrusion 123:
130: shock absorber 131: insertion space
140: fixed base 150: rail
151: groove portion 152: first through hole
153: Sleeve 154: Second through hole
155: first bent portion 156: second bent portion
157: third bent portion 160: fastening means
161: first bolt 162: second bolt
163: third bolt 164: fourth bolt
S1, S2: Buffer space R: Drain

Claims (5)

(110) having a lower end fixed to a floor surface and a rail (150) transversely engaged with the support, characterized in that the guard rail
A blockout 120 which is bent at the left and right end portions to the rear side and formed with fastening holes 121 at both sides and which is coupled to both sides of the strut 110 through a first bolt 161 passing through the fastening hole 121;
An impact absorbing plate 130 contacting the front surface of the block-out 120 at a rear surface thereof, the upper and lower ends of which are bent at the front and forming an insertion space 131 between the front and the unfolded portions;
(140) coupled to the front surface of the shock absorbing plate (130) and having upper and lower ends spaced apart from the upper and lower bent portions of the shock absorbing plate (130);
The upper and lower end portions are bent backward so as to form a buffer space S between the shock absorbing plate 130 and the fixing table 140. The front surface of the fixing plate 140 is fixed to the rear surface of the fixing table 140, A second bending portion 156 partially bent backward in succession to the first bending portion 155 and a second bending portion 156 bent and inserted toward the insertion space 131, And a rail (150) having a third bending part (157) which is supported in tight contact with the shock absorbing plate (130)
The shock absorber 130 is fixed to the blockout 120 by a second bolt 162 passing through the strut 110 and the blockout 120,
The fixing block 140 has a through hole through which the head portion of the second bolt 162 can pass and is connected to the blockout 120 by a third bolt 163 inserted into the second bolt 162, And the shock absorbing plate 130,
The upper and lower ends of the fixing table 140 generated while the fixing table 140 is coupled to the block-out 120 and the shock absorbing plate 130 through the third bolt 163, Wherein a rail (150) slidably inserted between the fixed plate (140) and the shock absorbing plate (130) is pressed between the fixed plate (140) and the impact absorbing plate (130).
The method according to claim 1,
Wherein the fastening hole (121) is formed as a long hole having a length in forward and backward directions and a protrusion (122) formed to have an inner diameter relatively smaller than an outer diameter of the first bolt (161) Having guard rails.
3. The method of claim 2,
Wherein the fastening hole (121) is formed to have a downward inclination toward the front side.
The method according to claim 1,
Wherein the rails (150) have a convex shape on the front surface, and grooves (151) are formed in the middle in a transverse direction to improve the strength of the rail (150).
The method according to claim 1,
Characterized in that the rail (150) has a continuous connection structure in the transverse direction through a sleeve (153) of the type in which one end part surrounds the outer side of the rail and the other end part is inserted into the adjacent rail. Guard rail having a protection structure.

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