EP1794370B1 - Structure securite anti-collision pour portiques routiers de grande taille - Google Patents

Structure securite anti-collision pour portiques routiers de grande taille Download PDF

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Publication number
EP1794370B1
EP1794370B1 EP05779686A EP05779686A EP1794370B1 EP 1794370 B1 EP1794370 B1 EP 1794370B1 EP 05779686 A EP05779686 A EP 05779686A EP 05779686 A EP05779686 A EP 05779686A EP 1794370 B1 EP1794370 B1 EP 1794370B1
Authority
EP
European Patent Office
Prior art keywords
legs
leg
transom
gantry
collision
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.)
Not-in-force
Application number
EP05779686A
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German (de)
English (en)
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EP1794370A1 (fr
EP1794370A4 (fr
Inventor
Kim Heglund
Johnny SKÖLD
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.)
Juralco AS
Original Assignee
Juralco AS
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 Juralco AS filed Critical Juralco AS
Publication of EP1794370A1 publication Critical patent/EP1794370A1/fr
Publication of EP1794370A4 publication Critical patent/EP1794370A4/fr
Application granted granted Critical
Publication of EP1794370B1 publication Critical patent/EP1794370B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/631—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact
    • E01F9/635—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact by shearing or tearing, e.g. having weakened zones
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/696—Overhead structures, e.g. gantries; Foundation means specially adapted therefor

Definitions

  • the present invention relates to a collision safe frame for large traffic gantries.
  • the frame comprises a plurality of legs, each supported at their lower end by a foundation, while at their upper end, each leg supports one or more transverse transoms, girders or the like, intended to extend across a road, supporting traffic signs and/or traffic lights or the like.
  • traffic gantries of this type must be so as to cause as little injury and damage as possible to human bodies or to the vehicles in a crash.
  • gantries formed of masts and transoms formed by trusses. These elements are made rigid in order to resist the environmental loads and forces acting at any time on the gantry. It is a requirement for such gantries that they shall not collapse when subjected to a collision with a vehicle and further that the transom shall not fall down onto the vehicles beneath the gantry.
  • Such known traffic gantries are formed of single vertical masts, or inclined, but rigidly fixed masts, arranged on each side of the road and with intermediate masts in case of separated, several traffic lane motorways.
  • Document EP 0 179 739 A2 discloses a collision safe traffic gantry, comprising a transverse transom (49), intended to support traffic signs or traffic lights or the like, said transom (49) being supported by a plurality of frames (11, 12), wherein each frame (11, 12) comprises a pair of legs (15, 16) and leg (39), which legs at their upper end support said transom (49), the legs (15, 16, 39) being configured with releasable joint elements (18, 42) arranged at the lower end of the legs, wherein said legs are pivotably configured on the transverse transom (49) by means of a hinged joint element (55), said legs at their lower end being supported on said releasable joint elements (18, 42), and allowed to pivot in a vertical plane around the hinged joint element (55).
  • An object of the present invention is to provide a traffic gantry which is collision safe and collision friendly when hit by vehicles, the gantry being of a yielding type, yielding at predetermined sections, thereby minimizing injury to people or damage to the H vehicle.
  • An other object of the invention is to provide a collision safe traffic gantry of a type wherein the transom or transverse girder does not fall down, even if one or two of the supporting masts or legs are completely destroyed in a collision with a vehicle.
  • a further object of the invention is to provide a collision safe traffic gantry which may resist impact from a vehicle hitting a supporting leg or mast from either sides with respect to the possible driving directions of the traffic lane, without causing severe damage to the transom or girder, or without causing the transom or girder to fall down, completely or partially.
  • a still further object of the invention is to provide a traffic gantry which may easily be assembled in a simple way, and which may quickly be erected across the road or motorway without causing any long stoppage in the traffic.
  • the transom is supported by pairs of legs or masts, each pair forming a frame.
  • Frames may be placed on both sides of a multi traffic lane motorway and between the traffic lane(s).
  • Each mast or leg is designed to resist the following collision conditions:
  • the legs in each frame are not fixed at the top of the girder, but are pressed against a suitably arranged damping cushion.
  • the lower breaking point will break off, the pivotable foundation joint element will swing down into the space in the ground in front of and at the rear of the foundation, and the front leg will pivot freely under the gantry in the same direction as the direction of motion of the vehicle.
  • the pendulum motion is stopped either because the rotational energy is damped out and the leg is freed from its rotational axis and fall down, or when the leg hits the transom, whereupon the leg will become free from the fixture at the pivot hinge on the transom, and then fall down.
  • collision condition 3 When the vehicle hits the front leg from behind, i.e. the collision condition 3, the same will occur as for collision condition 1, but course of events will be in opposite direction.
  • collision condition 4 When the rear leg is hit from behind, i.e. collision condition 4, the same will occur as for collision condition 2, but course of events will be in opposite direction.
  • FIG 1 shows an embodiment of a gantry 10 according to the invention.
  • the gantry comprises three pairs of frames 11, each formed by two upwards and inwards extending legs 12,12'. At their upper ends the legs 12, 12' support a transversely arranged transom or beam 13.
  • the two end frames 11 are arranged on the side shoulder of each traffic lane, while the third frame 11 is arranged in the mid shoulder.
  • the legs 12,12' and the transom 13 are formed of suitable trusses.
  • the transom supports traffic signs 14.
  • pairs of legs 12,12' meet in a single plane at their upper ends.
  • Figure 2 shows a preferred embodiment of the invention, said embodiment corresponds in general with the embodiment shown in Figure 1 , except that legs 12,12' in a pair are laterally displaced with respect to each other.
  • Figure 3 shows a frame 11, a vertical section through a transom 13, the upper end of the frame 11 and the lower end of a leg 12, while Figure 4 shows in an enlarged scale the lower end of a leg 12, the foundation 17 and breaking joint element 15.
  • the leg is formed of a Lattix®-profile.
  • the leg 12 is connected to the upper end of the breaking joint element 15 by means of breaking bolt 16.
  • the breaking bolts 16 may preferably be provided with a crack initiation (not shown).
  • the breaking joint element 15 is at its lower end pivotably arranged on the foundation 17, the foundation being fixed to the supporting ground 20.
  • the pivot suspension is obtained by means of an axis 18 extending in a direction parallel with the transom 13, across the motorway.
  • the upper end of the foundation 17 is configured in such way that a room 19 is formed on each side of the foundation 17, whereby the breaking joint element, when the leg 12 is broken off, may pivot around the axis 18 and fall down into the hole 19 on either side of the foundation, dependent upon the direction of motion of the vehicle causing the break off.
  • the breaking jointkand the upper end of the foundation 17 may be covered, for example by means of a tarpaulin bellow, a flexible jacket, or the like (not shown).
  • the shaft 18 may preferably be arranged levelled with the adjacent ground 20.
  • the legs 12,12' support the transom 13.
  • a breaking joint element 21 is arranged at the upper ends of the legs 12, 12' , said breaking joint element comprising one or more breaking bolts 16, preferably provided with a crack initiation.
  • the legs 12,12' are not fixed to the transom, but are pressed against one or more impact cushions 22 arranged on each side of the transom 13.
  • the frame 11 according to the present invention needs only to resist tension and compression. This makes it possible to provide "level arms” contributing to breaking off the bolts 14 correctly for such solution.
  • the upper breaking bolts 14 may preferably be placed along the inner sides of the legs 12,12'.
  • FIG. 3 As indicated in Figure 3 by means of arrows, four different directions of collision impacts are indicated.
  • the front leg 12 and the rear leg 12' must be seen in the same direction as indicated by the arrow A.
  • the arrow A shows the condition wherein the vehicle hits the frame 11 in front on the front leg 12, while the arrow B shows the condition wherein the vehicle hits the rear leg 12' of the frame 11 in its front.
  • the arrow C shows the condition wherein the vehicle hits the front leg 12 of the frame 11 from the rear, while the arrow D shows the condition wherein the vehicle hits the rear leg 12' of the frame 11 from the rear.
  • FIGs 3 and 4 indicates further the pendulum motion P, indicated by broken line, the leg 12 will follow when broken off at the breaking joint element 15.
  • FIG. 5 shows in enlarged scale the upper end of the two legs 12,12' in a frame 11, and a section through the transom 13.
  • the Figure shows the upper breaking joint element 21 and the breaking bolts 16.
  • each leg 12,12' is further provided with a support profile 23, which according to the embodiment shown has a triangular cross section.
  • the upper corner of the supporting profile 23 is pressed against the press cushion 22.
  • the drawing is somewhat exaggerated in order to show the space between the press cushion 22 and the supporting profile 23.
  • each supporting profile 23 is hinged along the lower end facing inwards to the transom 13 by means of a hinged connection 24,25.
  • the hinged connection 24,25 comprises a cylindrical groove or notch 24 with a laterally configured opening arranged along the lower, inner edge of the support profile 23.
  • the groove or notch 24 has a shape adapted to receive and co-act with a shaft 25, arranged at both ends of the transom 13.
  • the groove 24 is further configured with an opening which is somewhat larger than the diameter of the shaft 25.
  • a number of smaller filler bodies 26 may be arranged between the hinged connection 24,25 and the transom 13.
  • Such filler bodies may for example be rods or bodies formed of other types of profiles.
  • the purpose of the hinged connection 24,25 is to allow the leg 12,12' to pivot around the hinged connection in case of collision between a vehicle and the leg 12,12', causing break off of the lower breaking joint element.
  • the purpose of the filler bodies 26 is to secure that the leg 12,12' is kept in forced contact against the transom 13, and that the leg 12,12' and/or the transom 13 is not moved unintentionally if subjected to environmental loads or forces, such as wind, earthquake or the like.
  • Figure 6 shows parts of a preferred embodiment of the frame 11 according to the invention, wherein each leg 12,12' in a frame 11 is laterally displaced with respect to each other.
  • Preferred distance between two legs 12,12' of a frame may be in the order of Om to about 3m.
  • the lower breaking joint will break off, the pivotable joint element 15 will rotate and fall down into the space 19 in the ground 20 in front or at the rear of the foundation 17, and said front leg 12 will pivot freely beneath the gantry 10, around the hinged connection 24,25 in the same direction as the direction of motion of the vehicle.
  • the pivotable motion will stop when the upper end of the leg 12 hits the transom 13, the leg 12 may then be freed from the hinged connection 24,25 and fall down behind the vehicle.
  • the breaking joint 21 may also break off.
  • both the upper and the lower breaking joint elements 15,21 will break off in that the lower breaking joint element 15 will break off firstly, while the upper joint element 21 temporarily will be intact whereupon the upper joint element 21 subsequently will break off, whereby the leg 12' will fall down at a point in time where the vehicle has passed under the frame. Also for this case will the lower pivotable joint element 15 pivot and fall down into the space 19 at the foundation 17, but in this case in opposite direction.
  • collision condition 3 When the vehicle hits the front leg 12 from the rear, i.e. collision condition 3, the same will occur as for the collision condition 1, but opposite direction.
  • collision condition 4 When the rear leg 12' is hit from the rear, i.e. collision condition 4, the same will occur as for collision condition 2, but opposite direction.
  • the figures 7a-7c show one method of assembling the legs 12,12' and the transom.
  • the rear leg 12' is placed in a position to the right in the Figure, while the front leg 12 is placed in a position to the left in the Figure.
  • the two legs 12,12' are placed on the ground in lateral distance apart, and their upper ends are pulled in so that the groove 24 on the front leg 12 is placed into position with respect to the front shaft 25 and the bracket 30 to the right in the Figure, and the groove 24' on the rear leg 12' is placed in position with respect to the rear shaft 25' and the rear bracket 30' on the transom 13.
  • the transom 13 its then lifted into position above the two ends of the legs 12,12' whereupon the groove 24 is coupled to the shaft 25, and the groove 24' is coupled to the shaft 25'.
  • the transom is then lifted up and the front leg 12 is rotated in an anti-clockwise direction until a position where the leg is rotated so that the lower end of the leg 12 may be joined to the pivot on the foundation.
  • the rear leg 12' is rotated in a clockwise direction till the leg 12' has been rotated so far to the left in the Figure that the lower end of the rear leg 12' correspondingly may be connected to the pivot on the foundation.
  • the legs may be rotated up to 16° sideways from the vertical.
  • Possible signs or the like may possibly be fixed to the transom prior to assembling the legs 12,12' to the transom and lifting of the assembled gantry.
  • the hinged joint elements 15 may be arranged in such manner and temporarily be stiffened so that they are in their required position, ready to be connected to the legs.
  • profile material 26 may be of any suitable type, suitable for the intended purpose.
  • the collision safe frame may be modified to the roads and lanes where the gantry is to be installed.
  • a gantry may for example have a length of for example 50m.
  • the transom is made of several girder units, bolted, together.
  • the horizontal distance between the lower end of the legs in a pair may for example be 4-5 m, while the free height under the gantry may for example be 6,5-7 m.
  • the length of a leg may for example be 6-7 m.
  • intermediate plates (not shown), specifically designed for such joint, may be applied.
  • the signs may be hung on the transom in any suitable manner, suited for the intended purpose.
  • the frame may preferably be made of trusses of aluminium, whereby the total weight will be low.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Special Wing (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Door And Window Frames Mounted To Openings (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Ladders (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Road Signs Or Road Markings (AREA)

Claims (14)

  1. Portique de trafic routier anticollision (10), comprenant une ou plusieurs traverses (13) destinées à supporter des signaux de trafic routier (14) ou des feux de trafic routier, lesdites une ou plusieurs traverses (13) étant supportées par une pluralité de châssis (11) reposant sur une fondation (17), dans lequel chaque châssis (11) comprend des paires de jambes (12, 12'), lesquelles jambes supportent à leur extrémité supérieure ladite traverse (13) et reposent à leur extrémité inférieure sur la fondation (17), les jambes (12, 12') étant configurées avec des éléments de jonction amovibles (15) aménagés au moins sur l'extrémité inférieure des jambes (12, 12'), dans lequel les jambes appariées (12, 12') sont inclinées, s'étendant vers le haut et vers le bas en direction l'une de l'autre ; lesdites jambes (12, 12') sont configurées à pivotement sur la traverse (13) au moyen d'un élément de jonction articulé (24, 25) ; et lesdites jambes (12, 12') sont supportées à leur extrémité inférieure sur lesdits éléments de jonction amovibles (15) configurés pour pouvoir être rétractés dans le sol, lesdites jambes (12, 12') étant configurées pour que, lorsqu'une jambe (12, 12') est heurtée par un véhicule et cassée, l'élément de jonction amovible correspondant (15) soit libéré ou cassé et que lajambe heurtée (12, 12') soit soumise à un pivotement dans un plan vertical autour de l'élément de jonction articulé (24, 25).
  2. Portique de trafic routier anticollision (10) selon la revendication 1, dans lequel l'élément de jonction articulé (24, 25) comprend un corps cylindrique (24) fixé à la jambe (12, 12') et un arbre (25) fixé à la traverse (13).
  3. Portique de trafic routier anticollision (10) selon la revendication 1 ou 2, dans lequel le corps cylindrique (24) est configuré avec une ouverture d'un calibre qui est légèrement supérieur au diamètre de l'arbre (25), si bien que le corps cylindrique (24) peut être déplacé hors de toute interaction avec l'arbre (25) dans le cas d'un certain mouvement pendulaire de la jambe (12, 12') lors d'un choc.
  4. Portique de trafic routier anticollision (10) selon l'une quelconque des revendications 1 à 3, dans lequel les extrémités inférieures desdites jambes (12, 12') sont supportées par un élément de jonction (15) articulé à pivotement sur la fondation (17), permettant la rotation de l'élément de jonction (15) autour d'un axe horizontal (18), l'axe (18) étant configuré pour s'étendre sensiblement dans la même direction que la traverse (13).
  5. Portique de trafic routier anticollision (10) selon la revendication 4, dans lequel le joint de rupture entre l'élément de jonction (15) ayant pivoté et la partie adjacente de l'extrémité inférieure d'une jambe (12, 12') comprend un ou plusieurs boulons de rupture (16) configurés pour se rompre lorsque la jambe est heurtée par un véhicule.
  6. Portique de trafic routier anticollision (10) selon la revendication 4 ou 5, dans lequel l'élément de jonction articulé (15), lorsqu'il est rompu de la jambe voisine (12, 12'), est configuré pour pivoter vers le bas dans une cavité (19) du sol (20) associé à la fondation (17), la cavité (19) étant ménagée espacée de la fondation (17) de sorte que l'élément de jonction articulé (15) minimise les dommages subis par le soubassement du véhicule.
  7. Portique de trafic routier anticollision (10) selon l'une quelconque des revendications 4 à 6, dans lequel une protection enveloppante configurée pour empêcher la poussière, les graviers, la terre, la glace, l'eau etc. de pénétrer dans la cavité (19) est aménagée entre l'élément de jonction articulé (15) et la fondation (17).
  8. Portique de trafic routier anticollision (10) selon l'une quelconque des revendications 1 à 7, dans lequel ladite jambe (12, 12') est pourvue à son extrémité supérieure d'un élément de jonction amovible (21) comprenant un boulon de rupture (16) et configuré pour former un joint amovible à effet unidirectionnel garantissant que la jambe se brise lorsque la jambe (12, 12') est heurtée par l'arrière par un véhicule.
  9. Portique de trafic routier anticollision (10) selon l'une quelconque des revendications 1 à 8, dans lequel l'extrémité supérieure de ladite jambe (12, 12') est configurée pour être en contact forcé avec un amortisseur d'impact (2) aménagé sur la traverse (13) sans être fixé ou retenu sur la traverse (13) d'une autre manière quelconque.
  10. Portique de trafic routier anticollision (10) selon l'une quelconque des revendications 1 à 9, dans lequel chaque jambe de support (12, 12') d'une paire de jambes est déplacée latéralement l'une par rapport à l'autre.
  11. Portique de trafic routier anticollision (10) selon la revendication 10, dans lequel la distance latérale entre deux jambes (12, 12') d'une paire espacées latéralement est de l'ordre de 0 à 3 m.
  12. Portique de trafic routier anticollision (10) selon l'une quelconque des revendications 1 à 11, dans lequel chaque boulon de rupture (16) présente un départ de rupture afin d'assurer une rupture à un emplacement prédétermine.
  13. Portique de trafic routier anticollision (10) selon l'une quelconque des revendications 1 à 12, dans lequel le boulon de rupture (16) peut être déplacé latéralement vers un côté de la surface en coupe transversale de la jambe (12, 12') par rapport à la direction de déplacement du véhicule de sorte que, lorsque la jambe est soumise à un choc, un bras de levier soit formé dans l'élément de jonction de rupture, ce qui contribue avec une force supplémentaire à rompre le joint de rupture.
  14. Procédé pour assembler un portique de trafic routier anticollision (10) selon la revendication 1 en travers d'une ou plusieurs voies de trafic, comprenant une pluralité de paires de jambes (12, 12') supportées à leur extrémité inférieure par une fondation (17) et supportant à leur extrémité supérieure une ou plusieurs traverses (13) ou analogues, lesdites traverses (13) portant des signaux (14) pour des informations de trafic routier et/ou des feux de trafic routier ou analogues, caractérisé en ce que lesdites paires de jambes (12, 12') sont placées parallèlement l'une à l'autre, les jambes étant placées avec leurs extrémités supérieures tournées l'une vers l'autre et dans le sens opposé par rapport à leur position finale lorsqu'elles sont dressés, la ou les traverses (13) est ou sont soulevées en position au-dessus de l'extrémité supérieure des jambes (12, 12'), perpendiculairement par rapport aux jambes(12, 12'), de façon que l'extrémité supérieure de chaque jambe (12, 12') soit fixée à des moyens de fixation appropriés aménagés du côté inférieur de la traverse, les jambes assemblées et la traverse sont ensuite soulevées et lesdites jambes (12, 12') sont soumises à une rotation de leur position finale, sur au moins 90 °, à une position où l'extrémité inférieure des jambes est inclinée vers l'extérieur par rapport à l'extrémité supérieure, moyennant quoi l'extrémité inférieure des jambes (12, 12') est fixée à la fondation (17).
EP05779686A 2004-09-16 2005-09-14 Structure securite anti-collision pour portiques routiers de grande taille Not-in-force EP1794370B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20043888A NO322691B1 (no) 2004-09-16 2004-09-16 Trafikksikker portal
PCT/NO2005/000337 WO2006031126A1 (fr) 2004-09-16 2005-09-14 Structure securite anti-collision pour portiques routiers de grande taille

Publications (3)

Publication Number Publication Date
EP1794370A1 EP1794370A1 (fr) 2007-06-13
EP1794370A4 EP1794370A4 (fr) 2010-03-24
EP1794370B1 true EP1794370B1 (fr) 2011-04-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05779686A Not-in-force EP1794370B1 (fr) 2004-09-16 2005-09-14 Structure securite anti-collision pour portiques routiers de grande taille

Country Status (5)

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EP (1) EP1794370B1 (fr)
AT (1) ATE506489T1 (fr)
DE (1) DE602005027585D1 (fr)
NO (1) NO322691B1 (fr)
WO (1) WO2006031126A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT513025B1 (de) * 2012-09-20 2014-01-15 Forster Verkehrs Und Werbetechnik Gmbh Verkehrszeichenbrücke
GB201710136D0 (en) * 2017-06-26 2017-08-09 Animex Int Ltd Animal bridge
CN112099025B (zh) * 2020-08-20 2024-04-02 杭州飞步科技有限公司 桥吊下的车辆定位方法、装置、设备及存储介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071970A (en) * 1976-04-27 1978-02-07 Transpo-Safety, Inc. Hinge plate for roadside post safety breakaway system for sign panels and the like
US4269384A (en) * 1979-05-07 1981-05-26 Daf Indal Ltd. Collapsible structures employing frangible connections
EP0179739B1 (fr) * 1984-10-20 1989-04-19 L. Ellgass S.A. Portique mobile pour signalisation routière verticale
DK168226B1 (da) * 1991-03-05 1994-02-28 Bj Rn Thorkil Markmann Stander med brudled til opsætning af vejtavler
NL1000216C2 (nl) * 1995-04-25 1996-11-06 Alcoa Nederland Bv Portaal.

Also Published As

Publication number Publication date
NO322691B1 (no) 2006-11-27
EP1794370A1 (fr) 2007-06-13
DE602005027585D1 (de) 2011-06-01
WO2006031126A1 (fr) 2006-03-23
EP1794370A4 (fr) 2010-03-24
ATE506489T1 (de) 2011-05-15
NO20043888D0 (no) 2004-09-16
NO20043888L (no) 2006-03-17

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