EP1882064A1 - Guardrail with a buffer bracket for a road - Google Patents

Guardrail with a buffer bracket for a road

Info

Publication number
EP1882064A1
EP1882064A1 EP06757561A EP06757561A EP1882064A1 EP 1882064 A1 EP1882064 A1 EP 1882064A1 EP 06757561 A EP06757561 A EP 06757561A EP 06757561 A EP06757561 A EP 06757561A EP 1882064 A1 EP1882064 A1 EP 1882064A1
Authority
EP
European Patent Office
Prior art keywords
guardrail
bracket
bolt
engaging
sides
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06757561A
Other languages
German (de)
French (fr)
Inventor
Ltd. Kumdong Steel Construction Co.
Joong Suk Park
Mi Rye Seo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1882064A1 publication Critical patent/EP1882064A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0407—Metal rails
    • E01F15/0438—Spacers between rails and posts, e.g. energy-absorbing means

Definitions

  • the present invention relates to a road guardrail having an impact
  • front and rear brackets are elastically engaged in forward and backward
  • rear brackets are flexibly contracted for thereby releasing impact force
  • an impact buffering bracket is
  • a guardrail plate 4 formed by bending a steel plate in a waveform is fixed at one side or both upper sides
  • bending a steel plate is installed between the guardrail plate 4 and the column.
  • support portion 7 is formed at the upper and lower sides of the engaging portion
  • the impact buffering bracket 2 is manufactured
  • the impact buffering bracket is manufactured weaker. In this case, it is impossible to set a weakness level, so that the steel plate used for
  • an impact buffering bracket is made using a thinner steel plate as
  • an impact buffering bracket formed of a metallic plate is divided into a front
  • bracket and a rear bracket are elastically
  • guardrail plate the engaged front and rear brackets are flexibly contracted for
  • an impact buffering bracket is formed in a rectangular tube shape
  • the weak portion formed at the lateral sides is
  • guardrail is fixedly installed at a front side or front or rear side of a column
  • buffering bracket is divided into front and rear brackets; in the front bracket, an
  • Figure 1 is a backside disassembled perspective view illustrating an
  • Figure 2 is a disassembled perspective view illustrating a road guardrail
  • Figure 3 is a side cross sectional view illustrating an engaging state of
  • Figure 4 is a plane cross sectional view illustrating an engaging state of
  • Figures 5a and 5b are perspective view illustrating a manufacture process of a front bracket of Figure 2 according to the present invention
  • Figure 6 is a disassembled perspective view illustrating a road guardrail
  • Figures 7a and 7b are a perspective view and a plane cross sectional
  • Figure 8 is a perspective view illustrating a fourth embodiment of the
  • the road guardrail having an impact buffering bracket according to the
  • bracket 2 is divided into front and rear brackets 10 and 20 in the guardrail in
  • an engaging shoulder portion 12 is provided at a front upper side of a body 11 of which upper and lower sides and rear sides are
  • a plurality of bolt pass holes 13 are formed at both surfaces
  • a fixing engaging portion 16 is formed at both front sides of the body 11
  • the fixing engaging portion 15 includes a
  • a bolt hole 17 is formed
  • portion 16 is open and wide, and the rear side of the same is closed and has a
  • the fixing bolt 3 is engaged through the opening 18.
  • the opening 18 is formed at the front surface of
  • the rear bracket 20 is formed in a shape that the front and upper and
  • connection blot 23 can shape bolt through hole 22 is
  • connection bolt 23 passes through the bolt through holes 13 and 22 at the
  • guardrail plate 4 are engaged using a fixing bolt.
  • the second embodiment is the
  • Figure 7 is a view of a third embodiment of the present invention. In this
  • the impact buffering bracket 2 is formed of one rectangular tube.
  • buffering bracket made by bending a metallic plate is disposed at a front side or
  • a rectangular tube shape body 11a having an arc shape portion 5 is
  • a weak portion 19 having a plurality of holes is formed at
  • a fixing engaging portion 16 having upper and lower
  • the surface of the guardrail plate 4 is formed at both front sides of the body 11a.
  • the inclination engaging portion 15 are bent and formed at the upper and lower
  • a bolt hole 17 is formed at the engaging portions 14 and 15.
  • the fixing engaging portion 16 is further provided based on
  • the hole are not limited to the longitudinal direction.
  • a certain shape of the home is not limited to the longitudinal direction.
  • the rear bracket 20 is fixed at the front side or the rear side of the
  • bracket 10 is inserted into the opened front side of the rear bracket 20, and the
  • connection bolt 23 is inserted into the bolt
  • brackets 10 and 20 for thereby fixing the front and rear brackets 10 and 20.
  • the guardrail 4 is installed at the front side of the front bracket 10.
  • guardrail plate 4 can be easily performed in the present invention.
  • guardrail plate 4 is first applied to the guardrail plate 4 and is second applied to
  • the impact buffering bracket 2 which supports the rear surface of the guardrail 4.
  • connection bolt 23 passes through the peanut shape ball
  • the front bracket 10 is pushed in the rear direction for
  • the rear surface is installed by the fixing bolt 3, and the guardrail plate 4 is
  • the guardrail plate 4 is installed at the engaging shoulder portion 12 is the same
  • guardrail plate 4 is suspended over the vertical bent portion 4a of
  • guardrail plate 4 and the column 1 , and the weak portion 19 having a plurality of
  • a metallic plate is divided into a front bracket and a rear bracket, and the front
  • brackets are flexibly contracted for thereby releasing impact force, and in
  • an impact buffering bracket is

Abstract

A road guardrail having an impact buffering bracket between a waveform shape plate and a guardrail plate is disposed, in which an impact buffering bracket formed of a metallic plate is divided into a front bracket and a rear bracket, and the front and rear brackets are elastically engaged in forward and backward directions. When a vehicle collides with a guardrail plate, the engaged front and rear brackets are flexibly contracted for thereby releasing impact force, and in another embodiment of the present invention, an impact buffering bracket is formed in a rectangular tube shape, and a weak portion having a plurality of holes at both sides is formed. When a vehicle collides with a guardrail, the weak portion formed at the lateral sides is flexibly contracted for thereby releasing n impact force.

Description

Title: GUARDRAIL WITH A BUFFER BRACKET FOR A
ROAD
Technical Field
The present invention relates to a road guardrail having an impact
buffering bracket between a waveform shape plate and a guardrail plate, and in
particular to a road guardrail having an impact buffering bracket between a
waveform shape plate and a guardrail plate in which an impact buffering bracket
formed of a metallic plate is divided into a front bracket and a rear bracket, and
the front and rear brackets are elastically engaged in forward and backward
directions. When a vehicle collides with a guardrail plate, the engaged front and
rear brackets are flexibly contracted for thereby releasing impact force, and in
another embodiment of the present invention, an impact buffering bracket is
formed in a rectangular tube shape, and a weak portion having a plurality of
holes at both sides is formed. When a vehicle collides with a guardrail, the weak
portion formed at the lateral sides is flexibly contracted for thereby releasing n
impact force.
Background Art
As shown in Figure 1 , in a conventional road guardrail, a circular pipe
column 1 is vertically installed from the ground, and a guardrail plate 4 formed by bending a steel plate in a waveform is fixed at one side or both upper sides
of the column 1 using a fixing bolt. An impact buffering bracket 2 made by
bending a steel plate is installed between the guardrail plate 4 and the column.
In the impact buffering bracket 2, an arc portion 5 contacting with a
circular surface of the column 1 is formed at a rear side of the same, and an
engaging portion 6 engaged at a flat portion of a back surface of the guardrail 4
is bent and formed at a front center portion of each side surface. An inclination
support portion 7 is formed at the upper and lower sides of the engaging portion
6 and contacts with an inclination surface of a groove portion formed at a
backside of the guardrail plate 4.
When a vehicle collides with the conventional road guardrail, it is
contracted in a waveform. Namely, an external impact force is first applied toe
guardrail plate 4. The impact force is transferred to the column 1 through the
impact buffering bracket 2. The impact buffering bracket 2 is manufactured
weaker as compared to the guardrail plate 4 and the column 1 , So, when a
vehicle collides with the guardrail, the impact buffering bracket 2 is bent for
thereby releasing impact force for thereby minimizing the damages to vehicle
and guardrail.
However, the impact buffering bracket 2 made by bending a steel plate
is manufactured weaker with respect to an impact as compared to the guardrail
plate 4 and the column 1. In a state that colliding vehicle kinds and impact
forces are different, the impact buffering bracket is manufactured weaker. In this case, it is impossible to set a weakness level, so that the steel plate used for
manufacturing an impact buffering bracket is made using a thinner steel plate as
compared to the steel plate which is used for manufacturing the guardrail plate.
Disclosure of Invention
Accordingly, it is an object of the present invention to overcome the
problems encountered in the conventional art.
It is another object of the present invention to provide a road guardrail
having an impact buffering bracket according to the present invention in which
an impact buffering bracket formed of a metallic plate is divided into a front
bracket and a rear bracket, and the front and rear brackets are elastically
engaged in forward and backward directions. When a vehicle collides with a
guardrail plate, the engaged front and rear brackets are flexibly contracted for
thereby releasing impact force, and in another embodiment of the present
invention, an impact buffering bracket is formed in a rectangular tube shape,
and a weak portion having a plurality of holes at both sides is formed. When a
vehicle collides with a guardrail, the weak portion formed at the lateral sides is
flexibly contracted for thereby releasing n impact force.
To achieve the above objects, in a guardrail in which a waveform shape
guardrail is fixedly installed at a front side or front or rear side of a column
vertically installed on the ground of a road, with an impact buffering bracket made by bending a metallic plate being interposed, there is provided a road
guardrail having an impact buffering bracket characterized in that said impact
buffering bracket is divided into front and rear brackets; in the front bracket, an
engaging shoulder portion made by bending a steel plate of the body is
provided on a front upper surface of the body of which upper and lower and rear
sides are open in a channel shape, with a vertical bent portion being caught by
the engaging shoulder portion at the upper end of the guardrail, with the vertical
bent portion being downwardly bent; and a plurality of bolt through holes are
connected in forward and backward directions at both sides of the body in a
peanut shape; a fixing engaging portion is formed at both sides of the front
surface of the body for supporting the plane surface of the rear side of the
guardrail plate and the upper and lower inclination surfaces of the groove
portion; and in the fixing engaging portion, the inclination engaging portion is
bent and formed at the plane engaging portion of the center and the upper and
lower sides of the same; and the rear bracket is formed with the front and upper
and lower sides being open, and an arc portion forming the bolt engaging hole
is formed and engaged with a fixing bolt while corresponding to the rounded
surface, and a peanut shape bolt through hole is formed in the forward and
backward directions at the portion corresponding to the bolt through hole of the
both sides of the rear bracket; and in the rear bracket, the arc portion is engaged at the column using the fixing bolt, and the connection bolt passes
through the bolt through holes at the front side of the rear bracket with the rear
side of the front bracket and the front side of the rear bracket being inserted;
and the fixing engaging portion 16 and the guardrail are engaged using the
fixing volt in a state that the vertical bent portion of the guardrail is caught by the
engaging shoulder portion at the front side of the front bracket.
Brief Description of the Drawings
The present invention will become better understood with reference to the accompanying drawings which are given only by way of illustration and thus are not limitative of the present invention, wherein;
Figure 1 is a backside disassembled perspective view illustrating an
installation state of a conventional road guardrail;
Figure 2 is a disassembled perspective view illustrating a road guardrail
having an impact buffering bracket according to an embodiment of the present
invention;
Figure 3 is a side cross sectional view illustrating an engaging state of
Figure 2 according to the present invention;
Figure 4 is a plane cross sectional view illustrating an engaging state of
Figure 2 according to the present invention;
Figures 5a and 5b are perspective view illustrating a manufacture process of a front bracket of Figure 2 according to the present invention;
Figure 6 is a disassembled perspective view illustrating a road guardrail
according to a second embodiment of the present invention;
Figures 7a and 7b are a perspective view and a plane cross sectional
view of an installation state according to a third embodiment of the present
invention; and
Figure 8 is a perspective view illustrating a fourth embodiment of the
present invention.
Best Mode for Carrying Out the Invention
The road guardrail having an impact buffering bracket according to the
present invention will be described with reference to Figures 2 through 7.
As shown in Figures 2 through 4, in the impact buffering bracket
according to an embodiment of the present invention, the impact buffering
bracket 2 is divided into front and rear brackets 10 and 20 in the guardrail in
which a waveform shape guardrail is fixedly installed on the ground of a road in
a state that an impact buffering bracket made by bending a metallic plate is
disposed at a front side or front and rear sides of the column vertically installed
on the ground of a road.
In the front bracket 10, an engaging shoulder portion 12 is provided at a front upper side of a body 11 of which upper and lower sides and rear sides are
open in a channel shape, with a vertical bent portion 4a being vertically bent
downwardly and caught by an upper end of the guardrail plate 4, and with a
steel plate of the body 11 being cut and bent to be exposed in the direction of
the front upper side. A plurality of bolt pass holes 13 are formed at both surfaces
of the body 11 and are connected in the forward and backward directions in a
serial peanut shape.
A fixing engaging portion 16 is formed at both front sides of the body 11
and supports upper and lower inclination surfaces of the plane portion 8 of the
back surface of the guardrail plate 4. The fixing engaging portion 15 includes a
plane engaging portion 14 of the center portion, and an inclination engaging
portion 15 of the upper and lower sides of the same, with the plane engaging
portion and the inclination engaging portion being bent. A bolt hole 17 is formed
at each engaging portion 14, 15. Here, the front side of the fixing engaging
portion 16 is open and wide, and the rear side of the same is closed and has a
narrow tapered portion.
Here, as shown in Figures 5a and 5b, in the front bracket 10, the front
side of the body 11 is cut and open into two parts, and only the center portion
opened in a hinge type is fixed, and two parts are bent to be open, and the
upper and lower sides of the plate to be open are bent in inclination angle, and the fixing engaging portion 16 is cut, and a rectangular opening 18 is formed at
the cut portion. The fixing bolt 3 is engaged through the opening 18.
In the present invention, the opening 18 is formed at the front surface of
the body 11. Both sides of the body 11 are cut with sizes as large as the fixing
engaging portion 16, and the cut portion is tapered for thereby forming the fixing
engaging portion 16.
The rear bracket 20 is formed in a shape that the front and upper and
lower sides are open, and the back side corresponds to the rounded surface of
the column 1 , and an arc portion 5 having a bolt engaging hole 21 is formed and
fixed using a fixing bolt. A connection blot 23 can shape bolt through hole 22 is
formed forwardly and backwardly at the portion corresponding to the bolt
through hole 13 of both surfaces of the rear bracket 20.
In the rear bracket 20, the arc portion 5 is engaged using a fixing bolt 3.
The connection bolt 23 passes through the bolt through holes 13 and 22 at the
front side of the rear bracket 20 in a state that the rear end of the front bracket
10 and the front end of the rear bracket 20 are inserted. The vertical bent
portion 4a of the guardrail 4 is caught by the engaging shoulder portion 12 at
the front side of the front bracket 10, and the fixing engaging portion 16 and the
guardrail plate 4 are engaged using a fixing bolt.
As shown in Figures 2 through 5, in the above descriptions, the impact buffering bracket 2 installed at the guardrail 4 having two grooves is described.
In the embodiment of Figure 8, there is provided an impact buffering bracket 2
installed at the guardrail 4 having three grooves. The second embodiment is the
same as the first embodiment except for that the fixing engaging portion 16 is
further provided with two or three grooves. So, the detailed description of the
same is omitted.
Figure 7 is a view of a third embodiment of the present invention. In this
embodiment, the impact buffering bracket 2 is formed of one rectangular tube.
According to the third embodiment of the present invention, in a guardrail
in which a waveform shape guardrail is fixedly installed in a state that the impact
buffering bracket made by bending a metallic plate is disposed at a front side or
front or rear side of the column which is vertically installed on the ground of a
road, a rectangular tube shape body 11a having an arc shape portion 5 is
formed at a rear side of the impact buffering bracket 2, with the arc shape
portion corresponding to the circular portion of the column 1. An engaging
should portion 12 formed as a steel plate is bent is formed at the front upper
side of the body 11a. A weak portion 19 having a plurality of holes is formed at
both sides of the body 11a. A fixing engaging portion 16 having upper and lower
inclination surfaces of the plane portion 8 and the groove portion 9 of the rear
surface of the guardrail plate 4 is formed at both front sides of the body 11a. In the fixing engaging portion 16, the plane engaging portion 14 of the center and
the inclination engaging portion 15 are bent and formed at the upper and lower
sides of the same. A bolt hole 17 is formed at the engaging portions 14 and 15.
The fourth embodiment of Figure 8 is the same as the third embodiment
except for that in the third embodiment, there is provided a two-groove guardrail
plate 4, and in the fourth embodiment, there is provided a three-groove
guardrail plate 4. The fixing engaging portion 16 is further provided based on
the difference of grooves. So, the description of the same construction will be
omitted.
In the third and fourth embodiments of the present invention, a plurality of
holes are formed at both sides. In the weak portion 19, a plurality of longitudinal
holes are formed in the radial direction. As shown in the drawings, the shapes of
the hole are not limited to the longitudinal direction. A certain shape of the home
may be adapted in the present invention.
The operation of the present invention will be described with reference to
Figures 2 through 8.
The rear bracket 20 is fixed at the front side or the rear side of the
vertically installed column 1 using the fixing bolt 3. The rear end of the front
bracket 10 is inserted into the opened front side of the rear bracket 20, and the
lengths of the front and rear brackets 10 and 20 are adjusted so that the guardrail plate 4 is installed. The connection bolt 23 is inserted into the bolt
through holes 13 and 22 passing through both sides of the front and rear
brackets 10 and 20 for thereby fixing the front and rear brackets 10 and 20.
The guardrail 4 is installed at the front side of the front bracket 10. As
shown in Figure 3, the downwardly vertical bent portion 4a is provided at the
upper end of the column 1 while suspending over the engaging shoulder portion
12 which is bent upwardly at the front upper side of the front bracket 10. The
fixing engaging portion 16 formed at both front sides of the front bracket 10
contacts with the inclination surface formed at the plane portion 8 of the rear
surface of the guardrail 4 and the groove 9 of the upper and lower side of the
plane portion.
In the above state, the fixing bolts are inserted into the bolt hole 17
formed at the plane engaging portion 14 and the inclination engaging potion 15
and the hole formed at the guardrail 4, so that the guardrail is installed at the
front surface of the front bracket 10. At this time, when it is installed at the front
bracket 10 of the guardrail plate 4, the guardrail 4 is suspended over the
engaging shoulder portion 12 of the front bracket 4. Since the heavy guardrail
plate 4 is suspended by the engaging shoulder portion 12, the installation work
of the guardrail plate 4 can be easily performed in the present invention.
When a vehicle collides with the impact buffering bracket 2 according to the present invention, the impact force that the vehicle collides with the
guardrail plate 4 is first applied to the guardrail plate 4 and is second applied to
the impact buffering bracket 2 which supports the rear surface of the guardrail 4.
As described above, since the impact buffering bracket 2 is connected in such a
manner that the connection bolt 23 passes through the peanut shape ball
through holes 13 and 22 in which the front and rear brackets 10 and 20 are
continuously formed, the front bracket 10 is pushed in the rear direction for
thereby buffering the impact force.
In the second embodiment of Figure 6, when a vehicle collides with the
guardrail plate 4, the front bracket 10 is backwardly moved for thereby buffering
an impact force.
The operations of the third and fourth embodiments of the present
invention will be described. In the impact buffering bracket 2, the arc portion 5 of
the rear surface is installed by the fixing bolt 3, and the guardrail plate 4 is
installed at the front side of the impact buffering bracket 2. The construction that
the guardrail plate 4 is installed at the engaging shoulder portion 12 is the same
as the assembling procedure of the first embodiment of the present invention.
Namely, the guardrail plate 4 is suspended over the vertical bent portion 4a of
the guardrail plate 4, and the guardrail plate 4 contacting with the fixing
engaging portion 16 is fixedly engaged using the fixing bolt. In the third and fourth embodiments of the present invention, when a
vehicle collides with the guardrail, the impact force of the vehicle is first applied
to the guardrail plate 4 and is second applied to the impact buffering bracket 2
formed in the rectangular tube shape. The impact buffering bracket 2 of the third
and fourth embodiments of the present invention is installed between the
guardrail plate 4 and the column 1 , and the weak portion 19 having a plurality of
holes is formed at both sides of the same. The weak portion 19 is contracted for
thereby buffering an impact force, so that it is possible to minimize the
passenger of the vehicle.
Industrial Applicability
As described above, in the road guardrail having an impact buffering
bracket according to the present invention, an impact buffering bracket formed
of a metallic plate is divided into a front bracket and a rear bracket, and the front
and rear brackets are elastically engaged in forward and backward directions.
When a vehicle collides with a guardrail plate, the engaged front and rear
brackets are flexibly contracted for thereby releasing impact force, and in
another embodiment of the present invention, an impact buffering bracket is
formed in a rectangular tube shape, and a weak portion having a plurality of
holes at both sides is formed. When a vehicle collides with a guardrail, the weak portion formed at the lateral sides is flexibly contracted for thereby releasing n
impact force.
As the present invention may be embodied in several forms without
departing from the spirit or essential characteristics thereof, it should also be
understood that the above-described examples are not limited by any of the
details of the foregoing description, unless otherwise specified, but rather
should be construed broadly within its spirit and scope as defined in the
appended claims, and therefore all changes and modifications that fall within
the meets and bounds of the claims, or equivalences of such meets and bounds
are therefore intended to be embraced by the appended claims.

Claims

Claims:
1. In a guardrail in which a waveform shape guardrail is fixedly installed at
a front side or front or rear side of a column vertically installed on the ground of
a road, with an impact buffering bracket made by bending a metallic plate being
interposed, a road guardrail having an impact buffering bracket characterized in
that said impact buffering bracket 2 is divided into front and rear brackets 10
and 20; in the front bracket 10, an engaging shoulder portion 12 made by
bending a steel plate of the body 11 is provided on a front upper surface of the
body 11 of which upper and lower and rear sides are open in a channel shape,
with a vertical bent portion 4a being caught by the engaging shoulder portion 12
at the upper end of the guardrail 4, with the vertical bent portion 4a being
downwardly bent; and a plurality of bolt through holes 13 are connected in
forward and backward directions at both sides of the body 11 in a peanut shape;
a fixing engaging portion 16 is formed at both sides of the front surface of the
body 11 for supporting the plane surface of the rear side of the guardrail plate 4
and the upper and lower inclination surfaces of the groove portion 9; and in the
fixing engaging portion, the inclination engaging portion 15 is bent and formed
at the plane engaging portion 14 of the center and the upper and lower sides of
the same; and the rear bracket 20 is formed with the front and upper and lower
sides being open, and an arc portion 5 forming the bolt engaging hole 21 is
formed and engaged with a fixing bolt while corresponding to the rounded
surface of [1], and a peanut shape bolt through hole 22 is formed in the forward and backward directions at the portion corresponding to the bolt through hole 13
of the both sides of the rear bracket 20; and in the rear bracket 20, the arc
portion 5 is engaged at the column 1 using the fixing bolt 3, and the connection
bolt 23 passes through the bolt through holes 13 and 22 at the front side of the
rear bracket 20 with the rear side of the front bracket 10 and the front side of the
rear bracket 20 being inserted; and the fixing engaging portion 16 and the
guardrail 4 are engaged using the fixing volt in a state that the vertical bent
portion 4a of the guardrail 4 is caught by the engaging shoulder portion 12 at
the front side of the front bracket 10.
2. In a guardrail in which a waveform shape guardrail is fixedly installed at
a front side or front or rear side of a column vertically installed on the ground of
a road, with an impact buffering bracket made by bending a metallic plate being
interposed, a road guardrail having an impact buffering bracket characterized in
that a rectangular tube shaped body 11a is formed at a rear side of the impact
buffering bracket 2 with an arc portion 5 being formed thereat while
corresponding to the rounded surface of the column 1 ; and an engaging
shoulder portion 12 made by bending a steel plate of the body 11a is formed at
a front upper side of the body 11a; and a weak portion 19 having a plurality of
holes is formed at both sides of the body 11a; and a fixing engaging portion 16
supporting the plane portion 8 of the rear surface of the guardrail 4 and upper
and lower inclination surfaces of the groove portion 9 at both front sides of the body 11a; and the plane engaging portion 14 and the inclination engaging
portion 15 are bent and formed at the center and upper and lower sides of the
fixing engaging portion 16; and a bolt hole 17 is formed at the engaging portions
14 and 15.
EP06757561A 2005-05-19 2006-04-27 Guardrail with a buffer bracket for a road Withdrawn EP1882064A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020050041850A KR20050055668A (en) 2005-05-19 2005-05-19 Guardrail with a buffer bracket for a road
PCT/KR2006/001586 WO2006123864A1 (en) 2005-05-19 2006-04-27 Guardrail with a buffer bracket for a road

Publications (1)

Publication Number Publication Date
EP1882064A1 true EP1882064A1 (en) 2008-01-30

Family

ID=37180828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06757561A Withdrawn EP1882064A1 (en) 2005-05-19 2006-04-27 Guardrail with a buffer bracket for a road

Country Status (8)

Country Link
US (1) US20080251776A1 (en)
EP (1) EP1882064A1 (en)
JP (1) JP2008540885A (en)
KR (2) KR20050055668A (en)
AU (1) AU2006248258A1 (en)
RU (1) RU2007132225A (en)
WO (1) WO2006123864A1 (en)
ZA (1) ZA200706727B (en)

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WO2006123864A1 (en) 2006-11-23
AU2006248258A1 (en) 2006-11-23
ZA200706727B (en) 2010-03-31
KR20050055668A (en) 2005-06-13
RU2007132225A (en) 2009-04-10
US20080251776A1 (en) 2008-10-16
KR100573801B1 (en) 2006-04-24
JP2008540885A (en) 2008-11-20

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