KR20140070729A - Open double guard rail - Google Patents

Abstract

The present invention relates to an open type double guardrail which sets boundaries of a driveway and a sidewalk and which is installed at the center of a road to set boundaries of a driveway. The guardrail has posts (10) which are set up at predetermined intervals and on which a guard beam (20) is installed. The guard beam (20) comprises a first curved part (22) shaped into an arc and curved at the bottom of an upper gentle slope part (21); a first intermediate gentle slope part (23) curved at the bottom of the first curved part (22); a vertical part (24) curved downward at the first intermediate gentle slope part (23); a second intermediate gentle slope part (25) curved at the bottom of the vertical part (24); a second curved part (26) shaped into an arc and curved at the bottom of the second intermediate gentle slope part (25); and a lower gentle slope part (27) curved at the bottom of the second curved part (26).

Description

OPEN DOUBLE GUARD RAIL}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an open double guardrail which divides a boundary between a roadway and a sidewalk, or which is installed at the center of a road to divide a roadway boundary, more specifically, by zigzagging a guard beam, The present invention relates to an open double guardrail in which a pipe is fixed to a recessed groove formed by bending of a guard beam and a cushioning bracket and a reinforcing member are respectively mounted on a guard beam.

Korean Patent No. 10-1177427 (registered on Aug. 21, 2012), "Guardrail" is introduced.

Wherein the guard rail has a connecting hole connected to an upper portion of the support and a guard beam coupled to a connection port of the support, wherein the support is embedded in a lower portion of a hollow main body so as to stand upright on the floor, A bolt hole is formed in the main body exposed to the guide hole, and the connecting hole is coupled to the supporting body by the holding bolt, and the guard beam is coupled to the connecting hole, And the upper and lower butt portions of the upper and lower butt portions are formed to be bent at the lower portion and the butt holes are formed in the upper and lower butt portions so that the guard beam is convex in a curved shape, And the coupling groove portion is coupled to the coupling hole. The coupling groove portion is formed in an upper portion and a lower portion of the impact portion, Wherein the guard bolt is coupled with the butt hole whose center is coincident with the guard through hole so that the guard bolt penetrates through the guard hole, The combined guard beams are symmetrically arranged in two columns on both sides of the strut, and the guard beams arranged in the two columns are coupled to each other by a reinforcing block portion. The reinforcing block portion includes upper and lower And the guard beam coupling portion has a through hole formed on both sides of the channel type, and a bending portion bent in correspondence with the opposite sides of the guard beam coupling portions in opposite directions is integrally formed .

However, in the guard rail, when the guard beam itself is strong, the risk of the vehicle bouncing is high when the small vehicle collides with the guard rail. When the guard beam is connected to the connecting port so that the buffering action is good, There is a risk of becoming a victim and injuring the occupant.

It is therefore an object of the present invention to increase the rigidity of the guard beam by zigzagging the guard beam and to secure the rigidity of the guard beam by fixing the pipe to the recess groove formed by bending the guard beam A cushion bracket and a reinforcing member are attached to the guard beam, respectively, so that the impact energy is absorbed and the guard beam is excessively deflected. As a result, the automobile falls out of the vehicle or the elasticity of the guard beam Thereby preventing an automobile from being thrown backward.

According to another aspect of the present invention, there is provided an open dual guardrail, including a guard rail having a guard beam installed at a predetermined interval, the guard beam having a circular arc shape bent downward at a lower end of an upper mild- A first middle mildly-slanting portion which is bent at a lower end of the first bend portion, a vertical portion which is bent downward at a first intermediate mild-slanting portion, a second middle mild-slanting portion which is bent at a lower end of the vertical portion, And a first meandering portion is formed by the upper gentle slope portion, the first gentle slope portion, and the first intermediate gentle slope portion, and the first meandering portion is formed by the upper meandering portion, the first meandering portion, 1 a first groove is formed by the middle gentle slope portion and the vertical portion and the second intermediate gentle slope portion and the second groove is opened to the opposite side at the lower portion of the first groove, A third groove is formed by the second mild slope portion and the second slope portion and the lower mild slope portion and the third groove is opened in the same direction as the first groove at the lower portion of the second groove and the second groove is formed in the first groove and the third groove 1 pipe and a second pipe are respectively disposed so that the upper gently sloping portion and the first middle gently sloping portion are welded to the first pipe and a first space portion is formed between the first pipe and the first curved portion, And a second space is formed between the second pipe and the second curved portion.

The guard beam is formed with a bolt hole vertically perforated in an end portion thereof and a bolt hole formed in a vertical portion thereof, and the socket sleeve is formed at one end of the first and second pipes and the second pipe.

The guard beam is fixed to the support by a cushion bracket at a side end thereof. The cushioning bracket is formed by bending a plate material in a hexahedron shape with both sides opened, and is provided with a first pipe and a second pipe And a connecting vertical portion is formed between the first horizontal concave portion and the second horizontal concave portion and corresponds to the support on the other surface positioned on the opposite side of the surface in contact with the guard beam A bolt hole is formed at the center of the vertical concave portion, two surfaces are connected by the upper inclined surface and the lower inclined surface, a corrugated tube is disposed between the connecting vertical portion and the vertical concave portion, .

The guard beam further includes a reinforcing member mounted at an intermediate portion,

The reinforcing member is formed by bending a plate material in a hexahedron shape having both sides opened. A third horizontal concave portion and a fourth horizontal concave portion corresponding to the first pipe and the second pipe are formed on the surface corresponding to the guard beam. A connecting vertical portion is formed between the third horizontal concave portion and the fourth horizontal concave portion, a bolt hole is formed at the center of the connecting vertical portion, and the other surface facing the surface corresponding to the guard beam is formed by the upper inclined portion and the lower inclined portion And a corrugated pipe is disposed between the connection vertical portion and the other surface, so that the bolt is inserted into the corrugated pipe.

Thus, in the open double guardrail according to the present invention, the guard beam is zigzag bent to increase the self-rigidity of the guard beam, and the pipe is fixed to the recessed groove formed by bending of the guard beam, And a cushioning bracket and a reinforcing member are attached to the guard beam, respectively, so that the impact energy is absorbed. By excessively bending the guard beam, , It is possible to prevent the vehicle from being thrown backward by the elasticity of the guard beam.

1 is a perspective view showing an open double guard rail according to the present invention.
FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1 showing a guard beam, and FIG. 3 is a cross-sectional view taken along the line AA of FIG. 1 of a guard beam combined with the first and second pipes.
FIG. 4 is an exploded perspective view showing a structure in which a guard beam is mounted on a support by a connection bracket and a structure in which two guard beams are connected thereto, FIG. 5 is a perspective view showing a structure in which a guard beam is mounted on a support by a connection bracket, Sectional view taken along the line BB of Fig. 1 showing a structure in which two guard beams are connected to each other.
6 is a perspective view showing a buffer bracket.
7 is a perspective view showing a reinforcing member.
8 is a cross-sectional view taken along the line CC of Fig. 1 showing a state in which the reinforcing member is mounted on the guard beam.
9 is a perspective view showing an example in which an open double guardrail according to the present invention is used as a median of a road.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, the open double guardrail according to the present invention is provided with a guard beam 20 on a column 10 erected at a predetermined interval.

2, the guard beam 20 includes an arc-shaped first bend section 22 which is bent downward at the lower end of the upper gently sloping section 21 and a second bend section 22 which is bent at the lower end of the first bend section 22. [ A first intermediate mild-slanting portion 23, a vertical portion 24 which is bent downward in the first intermediate mild-slanting portion 23, a second intermediate mildew-slanting portion 25 which is bent at a lower end of the vertical portion 24, Shaped second bending section 26 that is bent downward in the second intermediate gently sloping section 25 and a bottom gently sloping section 27 that is bent at the lower end of the second bending section 26. [

As described above, according to the present invention, the guard beam 20 is zigzag bent to increase the self-rigidity of the guard beam and reduce the thickness t1 of the guard beam 20. When the vehicle collides with the guard beam, It is possible not only to prevent the guard beam 20 from being cut at the collision point but also to prevent the guard beam from being excessively bent or being bounced out by the elasticity.

2 and 3, the guard beam 20 has a first groove 28 formed by the upper gently sloping portion 21, the first curve 22 and the first middle gently sloping portion 23, And a second groove 29 is formed by the first middle gently sloping portion 23 and the vertical portion 24 and the second middle gently sloping portion 25. A second groove 29 is formed in the first groove 28, A third groove 30 is formed by the second middle gently sloping portion 25 and the second bending portion 26 and the lower gently sloping portion 27 and the third groove 30 is formed in the The first pipe 40 and the second pipe 45 are opened in the same direction as the first groove 28 at the lower portion of the second groove 29 and the first pipe 40 and the second pipe 45 are connected to the first groove 28 and the third groove 30, So that the upper mild slanting portion 21 and the first intermediate mild slanting portion 23 are welded to the first pipe 40 and the first space portion 43 is provided between the first pipe 40 and the first bent portion 22. [ And the second middle gently sloping portion 25 and the bottom gently sloping portion 27 are welded to the second pipe 45 and a second space portion 48 is formed between the second pipe 45 and the second curved portion 26.

As a result, when the automobile collides against the guard beam 20 in the direction of the arrow 3, the first space portion 43 and the second space portion 48 are contracted to primarily absorb the impact. The first and second pipes 40 and 45 reinforce the rigidity of the guard beam 20 so that the impact point of the guard beam 20 is severed or excessively bent so that the vehicle is driven out of the roadway, Thereby preventing the vehicle from being thrown backward by the elasticity of the vehicle body 20.

The guard beam 20 is formed with a bolt hole formed perpendicularly to the end portion and a bolt hole formed in the vertical portion 24 respectively and the first and second pipes 40 and 45 have socket sleeves 41 , 46 are formed.

4 and 5, when the two guard beams 20a and 20b are connected, for example, the lengths of the first and second pipes 40a and 45a of one guard beam 20a The guard sleeves 41a and 46a are connected to one end of one guard beam 20a so as to be fitted to the other ends of the first and second pipes 40b and 45b of the guard beam 20b to which the socket sleeves 41a and 46a are connected, And the other end of the guard beam 20b is coupled with the bolts 50, 52, 54 by a nut.

In addition, the guard beam 20 is fixed to the support 10 by a cushion bracket 60 at its side ends.

The first and second pipes 40 and 45 are formed at regular intervals (for example, 20 to 25 mm) at regular intervals (for example, 500 mm) and have a circular cross section or an oval cross section It can be one.

5 and 6, the cushioning bracket 60 is formed by bending a plate material in a hexahedron shape having both sides opened. The cushioning bracket 60 includes a first pipe 40 on a surface 61 corresponding to the guard beam 20, The first horizontal concave portion 62 and the second horizontal concave portion 63 are formed so as to correspond to the second pipe 45 and the first horizontal concave portion 62 and the second horizontal concave portion 63, A vertical concave portion 66 is formed so as to correspond to the support 10 on the other surface 65 positioned on the opposite side of the surface 61 contacting the guard beam 20, A bolt hole is formed in the center of the concave portion 66 and two surfaces 61 and 65 are connected by the upper inclined surface 68 and the lower inclined surface 69 and the connecting vertical portion 64 and the vertical concave portion And the bolts 54 are fitted in the corrugated pipes 67. As shown in Fig.

5, when the bolt 54 is inserted into the corrugated pipe 54 in a state in which the connection vertical portion 64 is in close contact with the vertical portion 24 of the guide beam 20, The connecting vertical portion 64 is fixed to the vertical portion 24 of the guide beam 20 and the first horizontal concave portion 62 and the second horizontal concave portion 62 are fastened to the nut 55 through the support 10 and the nut 55, The first pipe 40 and the second pipe 45 are wrapped around the bolt 54 in the state where the vertical recess 66 is in close contact with the support 10 as shown in FIG. .

Therefore, when the vehicle collides with the guard beam 20, the corrugated pipe 67 is contracted, and the upper inclined face 68 and the lower inclined face 69 of the cushioning bracket 60 are broken or contracted to absorb the impact energy . As a result, the guard beam 20 is cut or excessively warped, thereby preventing the vehicle from being thrown out of the vehicle, or the vehicle being prevented from being thrown back by the elasticity of the guard beam 20. [

Referring to FIGS. 7 and 8, the guard beam 20 has a reinforcing member 70 mounted at an intermediate portion thereof.

The reinforcing member 70 corresponds to the first pipe 40 and the second pipe 45 on the surface 71 corresponding to the guard beam 20, A third horizontal concave portion 72 and a fourth horizontal concave portion 73 are formed so that a connecting vertical portion 74 is formed between the third horizontal concave portion 72 and the fourth horizontal concave portion 73 A bolt hole 78 is formed at the center of the connecting vertical portion 74 and the other surface 75 facing the surface 71 corresponding to the guard beam 20 is formed by the upper inclined portion 76 and the lower inclined portion 77 and the corrugated pipe 80 is disposed between the connection vertical portion 74 and the other surface 75 so that the bolt 79 is fitted into the corrugated pipe 80. [

The bolt 79 is screwed into the nut 18 through the corrugated pipe 80 in a state where the bolt hole 78 of the connecting vertical portion 74 is aligned with the bolt hole formed in the vertical portion 24 of the guard beam 20. Thus, The reinforcing member 70 is attached to the guard beam 20 by being fastened to the guard member 81. [ At this time, the third horizontal concave portion 72 and the fourth horizontal concave portion 73 are brought into close contact with the first pipe 40 and the second pipe 45 to increase the rigidity of the guard beam 20, When the vehicle collides with the intermediate portion of the guard beam 20, the bending action at the middle portion of the guard beam 20 is largely generated, and by the elasticity of the guard beam 20, Prevent crash vehicles from bouncing backwards.

Referring to Fig. 9, an open double guardrail according to the present invention can be used as a median of a road, with two guard beams 20 symmetrically mounted about a support 10.

10: support 20: guard beam
40: first pipe 45: second pipe
60: buffer bracket 70: reinforcement bracket

Claims (5)

In a guard rail provided with a guard beam (20) on a column (10) erected at a predetermined interval,
The guard beam 20 has an arc-shaped first bend section 22 which is bent downward at the lower end of the upper gently sloping section 21 and a first middle gently sloping section 23 which is bent at the lower end of the first bend section 22, A second mid-gently-slanting section 25 which is bent at the lower end of the vertical section 24, a second middle gentle-slanting section 25 which is bent at the lower end of the vertical section 24, A second bend section 26 which is bent in a downward direction and a lower mild-slanting section 27 which is bent at the lower end of the second bend section 26. The upper bend section 21 and the first bend section 22, A first groove 28 is formed by the first middle gently sloping portion 23 and a second groove 24 is formed by the first middle gently sloping portion 23 and the vertical portion 24 and the second intermediate gently sloping portion 25 And the second groove 29 is opened to the opposite side of the lower portion of the first groove 28 and the second middle gently sloping portion 25 and the second bend portion 26 and the lower gently sloping portion 27 By third And the third groove 30 is opened in the lower portion of the second groove 29 in the same direction as the first groove 28 and the first groove 28 and the third groove 30 are formed, The upper pipe 40 and the second pipe 45 are respectively disposed so that the upper gently sloping portion 21 and the first middle gently sloping portion 23 are welded to the first pipe 40 and the first pipe 40 The second intermediate milder slanting portion 25 and the lower mild slanting portion 27 are welded to the second pipe 45 and the second pipe 45 is welded, And a second space portion (48) is formed between the second curved portion (45) and the second curved portion (26).
The method according to claim 1,
The guard beam 20 is formed with a bolt hole that is perpendicularly formed in the end portion and a bolt hole that is formed in the vertical portion 24. The first pipe 40 and the second pipe 45 are connected to each other by a socket sleeve (41, 46) are formed on both sides.
The method of claim 1, wherein
The cushioning bracket 60 is formed by bending a plate material in a hexahedron shape with its both sides opened and the guard beam 20 is fixed to the pillar 10 by a cushioning bracket 60, A first horizontal concave portion 62 and a second horizontal concave portion 63 are formed so as to correspond to the first pipe 40 and the second pipe 45 on the surface 61 corresponding to the first horizontal concave portion 62, A connecting vertical part 64 is formed between the second horizontal recess 63 and the connecting vertical part 64 and the bolt hole of the vertical part 24 of the guard beam 20, And a vertical recess 66 is formed in the other surface 65 located on the opposite side of the surface 61 contacting the guard beam 20 so as to correspond to the stanchion 10, A bolt hole is formed in the center and two surfaces 61 and 65 are connected by the upper inclined surface 68 and the lower inclined surface 69 and between the connection vertical portion 64 and the vertical concave portion 66, 67 are disposed, (54) is fitted in the corrugated pipe (67).
The method according to claim 1,
The guard beam (20) further comprises a reinforcing member (70) mounted at an intermediate portion,
The reinforcing member 70 corresponds to the first pipe 40 and the second pipe 45 on the surface 71 corresponding to the guard beam 20, A third horizontal concave portion 72 and a fourth horizontal concave portion 73 are formed so that a connecting vertical portion 74 is formed between the third horizontal concave portion 72 and the fourth horizontal concave portion 73 A bolt hole 78 is formed at the center of the connection vertical portion 74 and a bolt hole is formed in the other surface 75 facing the surface 71 corresponding to the guard beam 20, And the corrugated pipe 80 is disposed between the connection vertical portion 74 and the other surface 75 so that the bolt 79 is inserted into the corrugated pipe 80 Wherein the first and second guard rails are spaced apart from each other.
The method according to claim 1,
The first pipe (40) and the second pipe (45) penetrate through bolt holes perpendicularly to one end of the first pipe (40) and correspondingly to bolt holes formed perpendicularly to the end of the guard beam (20)
Bolt holes are respectively passed through the socket sleeves 41 and 46 formed at the other ends of the first and second pipes 40 and 45. The bolt holes penetrate through one end of the first and second pipes 40 and 45, And a through hole penetrating through the through hole so as to correspond to the bolt hole.

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