EP2319987A1 - Modulares schutzelement für motorradfahrer oder fahrradfahrer - Google Patents

Modulares schutzelement für motorradfahrer oder fahrradfahrer Download PDF

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Publication number
EP2319987A1
EP2319987A1 EP09797526A EP09797526A EP2319987A1 EP 2319987 A1 EP2319987 A1 EP 2319987A1 EP 09797526 A EP09797526 A EP 09797526A EP 09797526 A EP09797526 A EP 09797526A EP 2319987 A1 EP2319987 A1 EP 2319987A1
Authority
EP
European Patent Office
Prior art keywords
surface area
transverse direction
modular
modular element
motorcyclist
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Withdrawn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
EP09797526A
Other languages
English (en)
French (fr)
Other versions
EP2319987A4 (de
Inventor
Juan Arroyo Herrera
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.)
NUEVAS TECNOLOGIAS EN SEGURIDAD VIAL, S.L.
Original Assignee
Vial And Mold Tecnology 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
Priority claimed from ES200801528U external-priority patent/ES1068449Y/es
Priority claimed from ES200801527U external-priority patent/ES1068448Y/es
Application filed by Vial And Mold Tecnology SL filed Critical Vial And Mold Tecnology SL
Publication of EP2319987A1 publication Critical patent/EP2319987A1/de
Publication of EP2319987A4 publication Critical patent/EP2319987A4/de
Withdrawn legal-status Critical Current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

Definitions

  • This present invention relates to a modular protection element for motorcyclists and cyclists that provides a high degree of safety for motorcyclists and cyclists involved in an accident who are knocked into the hard shoulder, preventing impact against the supports of the guardrails or "safety barriers" and absorbing energy from the impact.
  • guardrails It is becoming frequently more common for guardrails to have protection elements fitted underneath to prevent a motorcyclist or cyclist involved in an accident to be thrown to the other side of the guardrail and collide against the guardrail or "safety barrier" support posts.
  • modular protection elements for motorcyclists or cyclists designed to be fitted underneath the guardrails extending in a longitudinal direction which coincides with that of the guardrails, which comprises of a hollow flexible longitudinal body so that it forms in its interior an air chamber.
  • a protection element is that disclosed in FR- 2 819 277 , wherein a protection piece is described designed to be hung from the guardrail basically comprised of two adjoining tubes, in a vertical direction, fixed to supports provided with openings in the connection of the pipes for their attachment.
  • this configuration based on two tubes presents various problems, namely, that the kinetic energy from the body of the motorcyclist is sufficient to deform the tubes so that he/she eventually passes through the space between them. It is also possible that the motorcyclist collides above the middle horizontal plane of the upper tube or below the lower one, so that the motorcyclist finishes in a position under the element or passes between the guardrail and the upper tube.
  • U 1 067 190 and FR 2 556 755 also disclose longitudinal protection elements, although the concept is very different as they do not have air chambers nor high enough resistance to the flexing mentioned, which make them barely adequate as they only resist impacts of a low magnitude.
  • the combined post-beam piece normally has an inverted "L" shape, so that the guardrail is kept at a certain distance, horizontally, from the post, and in the state of the art solutions, the support piece between the element and the aforementioned spacer are joined at the upper part of the element.
  • An example of such pieces is presented in U 1 067 190 and FR 2 556 755 .
  • the present invention proposes a modular protection element for motorcyclists and cyclists designed to be situated under the guardrail and extend along it in a longitudinal direction, which comprises of a flexible longitudinal body, said body being hollow so that it forms in its interior an air chamber, the cross-section of the longitudinal body being widened so as to define a greater transverse dimension in a first transverse direction and a second transverse direction perpendicular to said first transverse direction, a greater front surface area of the element, a greater rear surface area of the element and lateral ends in said first transverse direction, which are characterised in that said lateral ends of said body comprise means for resistance to flexing about the first transverse direction, so that when a motorcyclist collides against said greater front surface area of the element, the latter is deformed such as to assume a channelled shape which guides the body of the motorcyclist along said element.
  • the combination of characteristics mentioned provide an optimal protection element because the means for resistance to flexing in the first transverse direction, which is obviously the vertical direction once the element is fitted under the guardrail, and attached to the lateral ends, in combination with the air chamber which provides flexibility to the part comprised between said lateral ends, ensure that upon impact by the motorcyclist, which can generally happen tangentially, the element adopts a corrugated or curved shape, it channels the motorcyclist along the element preventing him/her from passing to the other side of the guardrail. As there are the means for resistance to flexing at the ends, the whole width of the element is taken advantage of in the first transverse direction.
  • the presence of the air chamber means that part of the pressure from the motorist is distributed inside the interior of the element, so that the concentration of forces is not so high at the point of impact, as would occur for example in protective elements such as those disclosed in U 1 067 190 and FR 2 556 755 .
  • said body comprises orifices whose dimensions are selected so that a fraction of the energy from the impact escapes by way of the air chamber through said orifices when a motorcyclist collides against said greater front surface area of the element.
  • the impact of the body of the motorcyclist provokes a forced discharge of air through said orifices, which in turn provokes a load loss of load and therefore energy. i.e., part of the kinetic energy from the body escapes through said orifices, which means that the rebound will not be so elastic and that the body will be thrown at an more acute angle than that of the accident (measured with respect to the general plane of the element), as happens for example when hitting a ball that is partially deflated. In this way, it is less likely that the body of the motorcyclist is thrown back into the road.
  • said greater transverse dimension is at least three or four times greater than the cross-section dimension in the second transverse direction, so that it is easier to cover the space between the guardrail and the ground and it is also more likely that the aforementioned channelling effect is produced.
  • one of the ends of the body extends with a crest along the element.
  • the element can be fitted so that the crest overlaps the lower edge of the guardrail on the road side, so that the crest constitutes a means of cross-sectional retention of the element that also makes it more difficult for the body of the motorcyclist to pass between the element and the guardrail.
  • the body is made out of polythene, recyclable plastic or recycled plastic.
  • the modular element of the invention is characterised in that said greater front surface area of the element is convex towards the interior of the element, improving the aforementioned channelling effect.
  • the means for resistance to flexing comprise of both solitary profiles of the body and more advantageously, they are square and metallic and they are in the interior of the body.
  • the means for resistance to flexing is constituted of material from the body itself which extends in said second transverse direction, so that the means for resistance to flexing is achieved when manufacturing the element itself, without it being necessary to add more pieces to the element.
  • the material of the body itself which extends in said transverse direction is curved towards the interior of the element with the ends in said transverse direction of said greater rear surface area of the element.
  • said material from the element itself which is extended in said transverse direction and curved towards the interior of the element are joined to the interior part of the greater front surface area discontinuously in the longitudinal direction.
  • said greater rear surface area consists of means for resistance to flexing around the longitudinal direction of the element, so that said greater rear surface area limits the arc of the greater frontal rear surface area.
  • the means of attachment to the posts of the guardrail consists of a support between said element and the posts, said support comprising of a first plate to be fixed to the post, and at least two attachment plates to said element, and two laminated arms which join the first plate to each one of the attachment plates, said arms being bent according to an edge in the central part.
  • the three plates and the two laminated arms are obtained bent by a metallic laminated piece, so that its manufacture is simple and a compact piece is produced.
  • both laminated arms are bent in the same direction. It has been proved that this characteristic, as illustrated further on in the figures, allows an almost horizontal movement by the element in the event of impact.
  • the means of attachment comprise of a fork whose two free ends combine with both orifices of said first plate, so that using two screws it is possible to fix said support at a variable height to a post.
  • figure 16 is a plan view of the element according to this embodiment wherein it is bent.
  • the invention refers to a modular protection element 1 for motorcyclists o cyclists designed to be fitted under the guardrail 2 and along this in a longitudinal direction L.
  • the element 1 subject of the invention comprises of a longitudinal body 3 of flexible material, said body 3 being hollow so that it forms in its interior an air chamber 4, means of attachment 5 to the posts 6 of the guardrail 2, the cross-section of the longitudinal body 3 being widened so as to define a greater transverse dimension in a first transverse direction V and a second transverse direction H perpendicular to said first transverse direction V, a greater front surface area 7 of the element l, a greater rear surface area 8 of the element 1 and lateral ends 9, 10 in said first transverse direction V.
  • the lateral ends 9, 10 of said body 3 comprises means for resistance to flexing 11 about the first transverse direction V, so that when a motorcyclists collides against said greater front surface area 7 of the element, the latter is deformed such as to assume a channelled shape which guides the body of the motorcyclist along said element 1.
  • This channelling effect is improved by giving the element a widened cross-section, for example making the greater transverse dimension at least three or four times bigger than the cross-section dimension 3 in the second transverse direction H.
  • the aforementioned body 3 comprises orifices 9 whose dimensions are selected so that a fraction of the energy from the impact escapes by way of the air chamber through said orifices when a motorcyclist collides against said greater front surface area 7 of the element 1.
  • one of the ends 7, 8 of the body extends with a crest 12 along the element 1.
  • said crest is fixed facing the lower edge of the guardrail, as can been seen in figure 2 .
  • the crest prevents the upper lateral ends of the element 1 passing to the other side of the guardrail, and guarantees vertical continuity between the guardrail 2 and the protection element 1.
  • the envisaged element with crest can be fitted on the edge of the pavement, with the crest covering the kerb, so as to prevent knocks from the aforementioned kerb, as is already known, the cause of numerous fatal accidents.
  • the element subject of the invention can be made from polythene, recyclable plastic or recycled plastic and in particular can be manufactured by rotational moulding.
  • the greater front surface area 7 of the element is convex towards the interior of the element 1, so as to contribute to channelling the body of the motorcyclist.
  • the means 11 for resistance to flexing in the direction V comprise of both solitary profiles 13, 14 of the body 3, which can be made for example square, metallic and in the interior of the body, as can be seen in the cross-section of figure 1 .
  • the means for resistance to flexing 11 are constituted by material from the body 3 itself which extend in said second transverse direction H, so that the geometric moment of the cross-section in the direction V (vertical when it is placed under the guardrail) can increase until the resistance to flexing is achieved which allows sufficient stiffness in the ends to obtain the aforementioned corrugated shape during an impact.
  • the material from the element 3 itself which is extended in said transverse direction H and curved towards the interior of the element 1 are joined to the interior part of the greater front surface area 7 discontinuously in the longitudinal direction. This allows additional stiffness to be given to the lateral ends of the element, guaranteeing, by way of the discontinuities, the passage of air through the interior of the element.
  • the greater rear surface area 8 comprises of means for resistance to flexing 15 about the longitudinal direction L of the element 1, so that said greater rear surface area 8 limits the arc of the greater frontal rear surface area 7.
  • the protection element itself can be extended extremely well so that its upper part constitutes the guardrail 2 itself.
  • Said upper part 2 can take the preferred cylindrical shape and comprise internally an air chamber 19 also cylindrical. Inside this chamber there can be a reinforcement 18, preferably tubular, to give its upper level the stiffness required for a guardrail 2.
  • This chamber can be interconnected with the air chamber in the main body of the element, although with openings of a reduced diameter to give the upper cylindrical extension the sufficient stiffness.
  • said upper extension 2 is envisaged with grooves or vertical indentations 17 on the two sides front and rear, to allow the element to be bent, as can be seen in figure 16 and allow it to be adapted to the shape of the road, in particular due to the fact that the width of the element is greater at the level of the upper extension, as can be seen in figure 13 .
  • the means of attachment 5 to the posts 6 of the guardrail 2 are height adjustable.
  • the means of attachment 5 to the posts 6 of the guardrail 2 consists of a support 101 between said element 1 and the post 6, said support 101 being conceived so that it deforms plastically when a motorcyclist collides against said greater front surface area 7 of the element 1, so that part of the energy from the impact is absorbed by the means of attachment instead of being sent back to the body of the motorcyclist involved in the accident.
  • the aforementioned support 101 is characterised in that it comprises a first plate 107 to be fixed to the post 6, and at least two attachment plates 108, 109 to said element 1, and two laminated arms 110, 111 which join the first plate 107 to each one of the attachment plates 108, 109, said arms being bent according to an edge in the central part.
  • This structure gives the support 101 a high capacity to absorb the energy from impact, as various areas of bending are defined whose plastic deformation will absorb part of the energy from impact.
  • the three plates 107, 108, 109 and the two laminated arms 110, 111 are obtained by bending a metallic laminated piece, so that almost the whole piece is obtained by a simple cut of the laminated material and subsequent bending.
  • both laminated arms 110, 111 are bent in the same direction.
  • the resulting effect of the resulting characteristics in the event of an impact against the element 1 by the body of a motorcyclist involved in an accident, and as illustrated in the sequence of figures 9 to 11 obtained by finite element simulation, is that the support bends so that the lower and upper ends roughly follow a horizontal trajectory. This fact is important because it maintains the stability of the protection element, preventing the ends of the latter from being displaced in a vertical direction, which could allow the motorcyclist to pass to the other side of the element 1 in the direction of the support posts 6.
  • the means of attachment comprise of a fork 105 whose two free ends 112, 113 combine with both orifices of said first plate 107, so that using two screws it is possible to fix said support to a post 6 at a variable height. This is especially important because it allows the height of the element 1 to be regulated, and specifically allows its lower edge to be moved towards the ground so that it prevents the body of the motorcyclist to pass under the element 1, who in the event of a fall would normally arrive there sliding along the ground.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
EP09797526.2A 2008-07-17 2009-05-08 Modulares schutzelement für motorradfahrer oder fahrradfahrer Withdrawn EP2319987A4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES200801528U ES1068449Y (es) 2008-07-17 2008-07-17 Soporte para elemento de proteccion de motoristas para guardarrailes
ES200801527U ES1068448Y (es) 2008-07-17 2008-07-17 Elemento modular de proteccion para motoristas o ciclistas
PCT/ES2009/070149 WO2010007191A1 (es) 2008-07-17 2009-05-08 Elemento modular de protección para motoristas o ciclistas

Publications (2)

Publication Number Publication Date
EP2319987A1 true EP2319987A1 (de) 2011-05-11
EP2319987A4 EP2319987A4 (de) 2014-07-02

Family

ID=41550039

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09797526.2A Withdrawn EP2319987A4 (de) 2008-07-17 2009-05-08 Modulares schutzelement für motorradfahrer oder fahrradfahrer

Country Status (2)

Country Link
EP (1) EP2319987A4 (de)
WO (1) WO2010007191A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019116059A1 (en) * 2017-12-11 2019-06-20 Arcelormittal Protection device and road barrier for motorcyclists
WO2021069958A1 (en) * 2019-10-09 2021-04-15 Anas S.P.A. Steel traffic divider road safety barrier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1244854Y (es) * 2019-09-10 2020-08-24 Pinera Antonio Gonzalvez Dispositivo protector para guarda-railes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416488A1 (de) * 1993-09-20 1995-03-23 Spiller Juergen Geländerelement für Verkehrsstraßen
EP0823511A1 (de) * 1996-08-05 1998-02-11 Société de Diffusion Lorraine- SODILOR Leitplanken für Strassenverkehr
US5791811A (en) * 1996-08-01 1998-08-11 Yoshino; Koichi Shock absorbing wall construction
DE10230541A1 (de) * 2002-07-05 2004-01-15 Lothar Wohlfarth Rammschutzprofil

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556755B1 (fr) 1983-12-20 1986-07-11 France Etat Dispositif d'ecartement de glissiere metallique et son application pour un ecran de protection des motards
WO1998033985A1 (en) * 1997-02-03 1998-08-06 Kredietbank Road barrier device
FR2819277B1 (fr) 2001-01-10 2007-04-20 Diffusion Regionale Et Locale Barriere de securite routiere, piece constitutive et leur procede de fabrication
KR100386860B1 (ko) * 2001-04-03 2003-06-09 선민영 폐타이어를 이용한 충격흡수장치
ITMI20040005U1 (it) 2004-01-14 2004-04-14 Snoline Spa Barriera protettiva per motociclisti

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4416488A1 (de) * 1993-09-20 1995-03-23 Spiller Juergen Geländerelement für Verkehrsstraßen
US5791811A (en) * 1996-08-01 1998-08-11 Yoshino; Koichi Shock absorbing wall construction
EP0823511A1 (de) * 1996-08-05 1998-02-11 Société de Diffusion Lorraine- SODILOR Leitplanken für Strassenverkehr
DE10230541A1 (de) * 2002-07-05 2004-01-15 Lothar Wohlfarth Rammschutzprofil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2010007191A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019116059A1 (en) * 2017-12-11 2019-06-20 Arcelormittal Protection device and road barrier for motorcyclists
AU2018385551B2 (en) * 2017-12-11 2020-05-14 Arcelormittal Protection device and road barrier for motorcyclists
WO2021069958A1 (en) * 2019-10-09 2021-04-15 Anas S.P.A. Steel traffic divider road safety barrier

Also Published As

Publication number Publication date
EP2319987A4 (de) 2014-07-02
WO2010007191A1 (es) 2010-01-21

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