EP2426259A1 - Crash barrier protection element and crash barrier incorporating said protection element - Google Patents

Crash barrier protection element and crash barrier incorporating said protection element Download PDF

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Publication number
EP2426259A1
EP2426259A1 EP10769363A EP10769363A EP2426259A1 EP 2426259 A1 EP2426259 A1 EP 2426259A1 EP 10769363 A EP10769363 A EP 10769363A EP 10769363 A EP10769363 A EP 10769363A EP 2426259 A1 EP2426259 A1 EP 2426259A1
Authority
EP
European Patent Office
Prior art keywords
guardrail
vertical support
rollers
section
protective element
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Withdrawn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
EP10769363A
Other languages
German (de)
French (fr)
Other versions
EP2426259A4 (en
Inventor
Ángel Ricardo MARTÍN ÁLVAREZ
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.)
Vialmarco SL
Original Assignee
Vialmarco SL
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 Vialmarco SL filed Critical Vialmarco SL
Publication of EP2426259A1 publication Critical patent/EP2426259A1/en
Publication of EP2426259A4 publication Critical patent/EP2426259A4/en
Withdrawn legal-status Critical Current

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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
    • E01F15/0423—Details of rails
    • E01F15/043—Details of rails with multiple superimposed members; Rails provided with skirts
    • 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 pertains to the field of safety devices for roads and/or similar.
  • the object of the present invention is a protective element for guardrails that absorbs impacts that could be produced in case of accidents.
  • Another object of the invention is a guardrail incorporating said protective element.
  • guardrails used on the lateral sides of roads, which consist of several vertical supports attached to the ground or pavement that support, on the upper part and at the adequate height, longitudinal profiles or beams arranged one after the other and which have a double-wave shape.
  • guardrails are somehow effective in collisions involving vehicles with four or more wheels, but are inoperative and very dangerous for drivers of motorcycles or similar, where it is relatively frequent that amputations occur, or even deadly accidents, upon impacting with the support's edges, which act as blades.
  • guardrail In patent application P200802604 the development of an impact-absorbing element for guardrail is achieved, conceived to cover the void formed between the ground and the barrier's longitudinal profile or beam in order to minimize the injuries that could be suffered by people involved in an accident.
  • Said guardrail is defined by a brace consisting of several parallel rollers supported by upper and lower studs and by anchoring means for anchoring the protection to the guardrail.
  • the aforementioned impact absorption element essentially comprises a plate, preferably made of metal, which is configured by two arms in zigzag, connected by a central section, fastening means to the protection or beam, and attaching means to attach the plate to the guardrail's vertical support.
  • Said protective element applicable to a guardrail formed by a vertical support and a beam, comprises parallel, rotating and substantially vertical rollers, an upper stud located over the rollers, and to which said rollers are linked, an absorption plate formed by two arms in zigzag, connected by a central section, attached to the upper stud, a metal structure for impact absorption located longitudinally along the barrier, on the lower part of the rollers, and between the rollers and the vertical support, a first connecting clamp for connecting the absorption plate to the vertical support, and a second connecting clamp for connecting the absorption metal structure to the vertical support.
  • rollers mentioned above incorporate an exterior elastic, flexible and/or elastically deformable layer, preferably comprising materials such as cork, rubber or plastic. These rollers are rotating, so that when the person involved in an accident hits the rollers, it is slightly moved towards other rollers. According to the aforementioned, the rotating quality of the rollers must be limited so that the friction between the mobile part and the fixed part of the roller is sufficient to avoid the roller from attaining an excessive rotating speed that could lead the accident victim to be ejected and rebound, with the great risk that this would cause.
  • the impact absorption metal structure is composed of four, clearly-defined sections.
  • a back section attachable to the vertical support, and which preferably presents a vertical wall; an intermediate absorption section placed following the back section located between the rollers and the vertical support which has a zigzag configuration, with a series of ridges and valleys; a leaning section placed following the intermediate section, over which the rollers lean, and which preferably displays a flat and horizontal configuration; and a front section that stretches on the lower side from the leaning section.
  • the front section is constituted by a vertical wall connecting the leaning section with a sloping wall, from which another vertical wall of smaller dimensions sets out in a downward direction, presenting a small horizontal projection oriented towards the vertical support.
  • guardrail protective element object of the invention, incorporates a metal sheet that connects the absorption metal structure with the rollers' upper stud.
  • Another object of the invention is a guardrail that comprises a vertical support, a beam and the protective element as previously described.
  • the beam is attached to the vertical support.
  • the beam is linked to the upper stud through a connection plate.
  • said beam is linked to the upper stud over one of the edges of the metal sheet.
  • Figure 1 shows a guardrail (1), formed by a vertical support (2) and a beam (3), incorporating a protective element (4) formed by parallel, rotating and substantially vertical rollers (5), an upper stud (6) located over the rollers (5), and to which said rollers (5) are linked, an absorption plate (8), formed by two arms (9) in zigzag, connected by a central section (10) anchored to the upper stud (6), an impact absorption metal structure (13) placed longitudinally along the guardrail (1), on the lower part of the rollers (5), and between the rollers (5) and the vertical support (2), a first connection clamp (11) for connecting the absorption plate (8) to the vertical support (2) and a second connection clamp (12) to connect the absorption metal structure (13) to the vertical support (2).
  • a first connection clamp (11) for connecting the absorption plate (8) to the vertical support (2)
  • a second connection clamp (12) to connect the absorption metal structure (13) to the vertical support (2).
  • the absorption metal structure (13), is formed by four clearly-defined sections (14A, 14B, 14C, 14D), which may be seen in figure 3 and are: a back section (14A) attachable to the vertical support (2), presenting a vertical wall; an intermediate absorption section (14B) placed following the back section (14A), located between the rollers (5) and the vertical support (2), presenting a zigzag configuration, with a series of ridges and valleys; a leaning section (14C), placed following the intermediate section (14B) over which the rollers (5) lean, and which displays a flat and horizontal configuration; and a front section (14D) which stretches on the lower side from the leaning section (14C).
  • Said front section (14D) is formed by a vertical wall that connects the leaning section (14C) with a sloping wall, from which a smaller dimension vertical wall sets out downwards, presenting a small horizontal projection oriented towards the vertical support (2).
  • rollers (5) incorporate an elastic, flexible or elastically deformable exterior layer (7), which comprises materials such as cork, rubber or plastic.
  • guardrail's protective element (4) object of the invention, incorporates a metal sheet (15), depicted in figure 2 , which connects the absorption metal structure (13) with the upper stud (6) of the rollers (5).
  • guardrail (1) comprising a vertical support (2), a beam (3) and the protective element (4) as previously described.
  • the beam (3) is attached to the vertical support (2).
  • the beam (3) is linked to the upper stud (6) through a connection plate (16) shown in figure 2 .
  • said beam (3) is linked to the upper stud (6) over one of the ends of the metal sheet (15).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Catching Or Destruction (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

The element is for use in a crash barrier (1) made up of a vertical support post (2) and a double-wave cross-beam (3), and comprises substantially vertical parallel rotary bearings (5), an upper upright (6) located above the bearings (5), to which said bearings (5) are connected, an absorption plate (8) made up of two zigzag arms (9) joined via a central sector (10), attached to the upper upright (6), a metal impact-absorption structure (13) positioned longitudinally along the barrier (1), at the bottom of the bearings (5), and between the bearings (5) and the vertical support post (2), a first connection bracket (11) connecting the absorption plate (8) to the vertical support post (2), and a second connection bracket (12) connecting the metal absorption structure (13) to the vertical support post (2). A crash barrier (1) incorporating the protection element (4).

Description

  • The present invention pertains to the field of safety devices for roads and/or similar.
  • The object of the present invention is a protective element for guardrails that absorbs impacts that could be produced in case of accidents.
  • Similarly, another object of the invention is a guardrail incorporating said protective element.
    • BACKGROUND OF THE INVENTION
  • Currently, there are protections called guardrails used on the lateral sides of roads, which consist of several vertical supports attached to the ground or pavement that support, on the upper part and at the adequate height, longitudinal profiles or beams arranged one after the other and which have a double-wave shape.
  • These guardrails are somehow effective in collisions involving vehicles with four or more wheels, but are inoperative and very dangerous for drivers of motorcycles or similar, where it is relatively frequent that amputations occur, or even deadly accidents, upon impacting with the support's edges, which act as blades.
  • To prevent this, there are several documents known, that describe several implements to cover the supports with elastic and/or edge-free elements.
  • In patent application P200802604 the development of an impact-absorbing element for guardrail is achieved, conceived to cover the void formed between the ground and the barrier's longitudinal profile or beam in order to minimize the injuries that could be suffered by people involved in an accident. Said guardrail is defined by a brace consisting of several parallel rollers supported by upper and lower studs and by anchoring means for anchoring the protection to the guardrail.
  • The aforementioned impact absorption element essentially comprises a plate, preferably made of metal, which is configured by two arms in zigzag, connected by a central section, fastening means to the protection or beam, and attaching means to attach the plate to the guardrail's vertical support.
    • DESCRIPTION OF THE INVENTION
  • It is possible to obtain a double absorption of the impact in case of an accident through the guardrail's protective element object of the present invention, also avoiding the rebound effect that would cause the injured person to be thrown back to the road, with the consequent risk that this would entail.
  • Said protective element, applicable to a guardrail formed by a vertical support and a beam, comprises parallel, rotating and substantially vertical rollers, an upper stud located over the rollers, and to which said rollers are linked, an absorption plate formed by two arms in zigzag, connected by a central section, attached to the upper stud, a metal structure for impact absorption located longitudinally along the barrier, on the lower part of the rollers, and between the rollers and the vertical support, a first connecting clamp for connecting the absorption plate to the vertical support, and a second connecting clamp for connecting the absorption metal structure to the vertical support.
  • The rollers mentioned above incorporate an exterior elastic, flexible and/or elastically deformable layer, preferably comprising materials such as cork, rubber or plastic. These rollers are rotating, so that when the person involved in an accident hits the rollers, it is slightly moved towards other rollers. According to the aforementioned, the rotating quality of the rollers must be limited so that the friction between the mobile part and the fixed part of the roller is sufficient to avoid the roller from attaining an excessive rotating speed that could lead the accident victim to be ejected and rebound, with the great risk that this would cause.
  • Similarly, the impact absorption metal structure is composed of four, clearly-defined sections. A back section attachable to the vertical support, and which preferably presents a vertical wall; an intermediate absorption section placed following the back section located between the rollers and the vertical support which has a zigzag configuration, with a series of ridges and valleys; a leaning section placed following the intermediate section, over which the rollers lean, and which preferably displays a flat and horizontal configuration; and a front section that stretches on the lower side from the leaning section.
  • Preferably, the front section is constituted by a vertical wall connecting the leaning section with a sloping wall, from which another vertical wall of smaller dimensions sets out in a downward direction, presenting a small horizontal projection oriented towards the vertical support.
  • In addition, the guardrail protective element, object of the invention, incorporates a metal sheet that connects the absorption metal structure with the rollers' upper stud.
  • Finally, another object of the invention is a guardrail that comprises a vertical support, a beam and the protective element as previously described.
  • In a preferred embodiment of such guardrail, the beam is attached to the vertical support.
  • According to another preferred embodiment, the beam is linked to the upper stud through a connection plate. Preferably, said beam is linked to the upper stud over one of the edges of the metal sheet.
    • DESCRIPTION OF THE DRAWINGS
  • To complement the description being carried out and in order to help to a better understanding of the invention's characteristics, according to an example of preferred embodiment of the latter, a set of drawings is attached as an integral part of said description, wherein, with an illustrative and non-limiting character, the following has been represented:
    • Figure 1.- Shows a perspective view of a guardrail according to a preferred embodiment of the invention, where the beam is anchored to the vertical support.
    • Figure 2.- Shows a perspective view of the guardrail according to another preferred embodiment of the invention, where the beam is linked to the upper stud through a connection plate.
    • Figure 3.- Shows a side view of the protective element where the four differentiated sections of the absorption metal structure are shown.
    • Figure 4.- Shows a perspective view of the protective element object of the invention.
    PREFERRED EMBODIMENT OF THE INVENTION
  • Figure 1 shows a guardrail (1), formed by a vertical support (2) and a beam (3), incorporating a protective element (4) formed by parallel, rotating and substantially vertical rollers (5), an upper stud (6) located over the rollers (5), and to which said rollers (5) are linked, an absorption plate (8), formed by two arms (9) in zigzag, connected by a central section (10) anchored to the upper stud (6), an impact absorption metal structure (13) placed longitudinally along the guardrail (1), on the lower part of the rollers (5), and between the rollers (5) and the vertical support (2), a first connection clamp (11) for connecting the absorption plate (8) to the vertical support (2) and a second connection clamp (12) to connect the absorption metal structure (13) to the vertical support (2).
  • As it may be observed on figures 3 and 4, the absorption metal structure (13), is formed by four clearly-defined sections (14A, 14B, 14C, 14D), which may be seen in figure 3 and are: a back section (14A) attachable to the vertical support (2), presenting a vertical wall; an intermediate absorption section (14B) placed following the back section (14A), located between the rollers (5) and the vertical support (2), presenting a zigzag configuration, with a series of ridges and valleys; a leaning section (14C), placed following the intermediate section (14B) over which the rollers (5) lean, and which displays a flat and horizontal configuration; and a front section (14D) which stretches on the lower side from the leaning section (14C).
  • Said front section (14D) is formed by a vertical wall that connects the leaning section (14C) with a sloping wall, from which a smaller dimension vertical wall sets out downwards, presenting a small horizontal projection oriented towards the vertical support (2).
  • The aforementioned rollers (5) incorporate an elastic, flexible or elastically deformable exterior layer (7), which comprises materials such as cork, rubber or plastic.
  • In addition, the guardrail's protective element (4), object of the invention, incorporates a metal sheet (15), depicted in figure 2, which connects the absorption metal structure (13) with the upper stud (6) of the rollers (5).
  • Finally, another object of the invention is constituted by a guardrail (1) comprising a vertical support (2), a beam (3) and the protective element (4) as previously described.
  • In a preferred embodiment of said guardrail (1), the beam (3) is attached to the vertical support (2).
  • According to another preferred embodiment, the beam (3) is linked to the upper stud (6) through a connection plate (16) shown in figure 2. Preferably, said beam (3) is linked to the upper stud (6) over one of the ends of the metal sheet (15).

Claims (11)

  1. Guardrail protective element (4), applicable to a guardrail (1), formed by a vertical support (2) and a beam (3), characterized in that it comprises:
    - parallel, rotating and substantially vertical rollers (5),
    - an upper stud (6), located over the rollers (5) and to which said rollers (5) are linked,
    - an absorption plate (8) formed by two arms (9) in zigzag connected by a central section (10), attached to the upper stud (6),
    - an impact absorption metal structure (13) placed longitudinally along the guardrail (1), on the lower part of the rollers (5), and between the rollers (5) and the vertical support (2),
    - a first connection clamp (11) for connecting the absorption plate (8) to the vertical support (2) and,
    - a second connection clamp (12) for connecting the absorption metal structure (13) to the vertical support (2).
  2. Guardrail protective element (4), according to claim 1, wherein the absorption metal structure (13) is formed by four differentiated sections (14):
    - a back section (14A) attachable to the vertical support (2):
    - an intermediate absorption section (14B) placed following the back section (14A) located between the rollers (5) and the vertical support (2), showing a zigzag configuration with a series of crests and valleys:
    - a leaning section (14C) placed following the intermediate section (14B) over which the rollers (5) lean; and
    - a front section (14D) that stretches on the lower side from the leaning section (14C).
  3. Guardrail protective element (4), according to claim 2, wherein the back section (14A) presents a vertical wall.
  4. Guardrail protective element (4), according to claim 2, wherein the support section (14C) displays a flat and horizontal configuration.
  5. Guardrail protective element (4), according to claim 2, wherein the front section (14D) is constituted by a vertical wall connecting the leaning section (14C) with a sloping wall, from which another vertical wall of smaller dimensions sets out downwards, showing a small horizontal projection oriented towards the vertical support (2).
  6. Guardrail protective element (4), according to claim 1, wherein the rollers (5) incorporate an elastic, flexible and/or elastically deformable exterior layer (7).
  7. Guardrail protective element (4), according to claim 6, wherein the exterior layer (7) comprises a material to be selected between:
    cork
    rubber, and
    plastic.
  8. Guardrail protective element (4), according to claim 1, further incorporating a metal sheet (15) that connects the absorption metal structure (13) with the upper stud (6) of the rollers (5).
  9. Guardrail (1) characterized in that it comprises:
    - a vertical support (2)
    - a beam (3) attached to the vertical support (2), and
    - a protective element (4) described in any of claims 1-8.
  10. Guardrail (1) characterized in that it comprises:
    - a vertical support (2),
    - the protective element (4) described in any of claims 1-8, and
    - a beam (3) linked to the upper stud (6) through a connection plate (16).
  11. Guardrail (1) according to claim 10, wherein the beam (3) is linked to the upper stud (6) over one of the ends of the metal sheet (15).
EP10769363.2A 2009-04-27 2010-04-23 Crash barrier protection element and crash barrier incorporating said protection element Withdrawn EP2426259A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200930101A ES2347755B1 (en) 2009-04-27 2009-04-27 ELEMENT OF PROTECTION OF VALLE REMOVED AND VALLE REMOVED THAT INCLUDES SUCH ELEMENT OF PROTECTION.
PCT/ES2010/070255 WO2010125217A1 (en) 2009-04-27 2010-04-23 Crash barrier protection element and crash barrier incorporating said protection element

Publications (2)

Publication Number Publication Date
EP2426259A1 true EP2426259A1 (en) 2012-03-07
EP2426259A4 EP2426259A4 (en) 2013-09-25

Family

ID=42983235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10769363.2A Withdrawn EP2426259A4 (en) 2009-04-27 2010-04-23 Crash barrier protection element and crash barrier incorporating said protection element

Country Status (3)

Country Link
EP (1) EP2426259A4 (en)
ES (1) ES2347755B1 (en)
WO (1) WO2010125217A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220054129A (en) * 2020-10-23 2022-05-02 (주)데크 Safety fence for vehicle protection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5054954A (en) * 1989-03-16 1991-10-08 International Barrier Corporation Roadway barrier
DE20106249U1 (en) * 2001-04-10 2001-07-26 Geo Do Industry Co., Ltd., Busan Impact absorber for a street
US7246791B2 (en) * 2002-03-06 2007-07-24 The Texas A&M University System Hybrid energy absorbing reusable terminal

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO2010125217A1 *

Also Published As

Publication number Publication date
ES2347755B1 (en) 2011-08-23
WO2010125217A1 (en) 2010-11-04
EP2426259A4 (en) 2013-09-25
ES2347755A1 (en) 2010-11-03

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