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
  • E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
  • E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
  • E01F13/06—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage by swinging into open position about a vertical or horizontal axis parallel to the road direction, i.e. swinging gates

Definitions

• the present invention relates to the field of automatic barriers for controlling vehicle traffic, in particular on traffic lanes or sites with controlled access such as car parks, private places, motorway lanes, official buildings, priority traffic lanes, etc.
• the present invention relates in particular to a rail for an automatic barrier as well as to the automatic barrier comprising said rail.
• Barrier beams are subject to many requirements. They must be light to limit the efforts of the drive motor. They must be resistant to shocks, in particular to shocks from vehicles hitting the arm, without causing the windshield to break. Carbon runners are already known, they are light and resistant, however these runners are very rigid and therefore brittle.
• the present invention proposes a smooth for an automatic barrier with a view to controlling the circulation of vehicles, in particular on traffic lanes or sites with controlled access, the smooth comprising a plurality of substantially planar blades, maintained spaced apart, substantially facing each other and each extending in a respective extension plane, the extension planes being substantially parallel to each other, the blades being configured so as to allow elastic deformation of the heddle in a perpendicular plane to the extension planes, between a closed position in which the rail prohibits traffic and a deformed position in which at least a portion of the rail is oblique with respect to the direction of traffic, and in particular in which the at least a portion of the rail is perpendicular to the direction of traffic.
• the arm has elastic properties allowing it to absorb the mechanical energy received during an impact, in particular with a moving vehicle.
• the ability of the boom to bend also prevents the whip effect, i.e. the return movement of the boom when it returns to its initial position.
• the configuration of the slats gives the stringer a capacity for elastic deformation which allows it, under the action of a force exerted against the stringer, in particular in a direction transverse to the extension planes of the slats, to reach a curvature of at least 90°, for example approximately 180°, or even an S-shaped curvature, to avoid breakage, then to return to the closed position.
• the arm thus configured is elastically deformable in a horizontal plane while remaining sufficiently rigid in a vertical plane so as to limit oscillations in this plane when opening and closing the rail.
• the heddle comprises a spacer system, configured to fix all the adjacent slats of the plurality of slats two by two, keeping them spaced apart and substantially opposite each other.
• the spacer system comprises at least one spacer, extending longitudinally between two adjacent blades, in particular the at least one spacer extends over at least 50% of the length of the rail.
• the at least one spacer extends over at least 70% of the length of the stringer.
• the at least one spacer comprises an elastomeric material.
• the spacer system comprises spacers interposed between the adjacent slats and spaced apart along the rail.
• the spacers are for example made of a rigid material, by silent blocks, etc...
• the at least one spacer comprises at least a first support surface in support with a blade, and a second opposite support surface, in support with an adjacent blade, the first support surface being configured to generating at least one convex curvature to the blade resting on the first surface.
• the blade portion resting between two first surfaces has two convex curvatures. This generates a concave inflection point in the blade. This configuration facilitates the elastic deformation of the beam in a plane perpendicular to the extension planes.
• the first bearing surface has a concave curvature.
• the first support surface comprises two opposite end regions, each extending in a plane transverse to the extension planes, oriented towards the second support surface. This configuration makes it possible to generate at least one convex curvature in the bearing blade.
• the second support surface is configured to generate at least one convex curvature to the adjacent blade resting on the second surface.
• the two adjacent slats have a symmetrically convex curvature at the bearing surfaces and a concave point of inflection between the two convex curvatures.
• the plurality of slats consists solely of a central slat, a first lateral slat and a second lateral slat, adjacent to the central slat, the smooth comprising at least two spacers on either side. other of the central blade.
• this variant of the heddle of the invention comprises one or more of the following optional characteristics considered alone or in combination:
• the central blade has a greater height than those of the first side blade and of the second side blade.
• the central blade has a greater length than those of the first side blade and of the second side blade.
• the central blade has a greater thickness than those of the first side blade and of the second side blade.
• the at least two spacers have the first support surface resting respectively on the first side blade and on the second side blade, and configured to generate at least one convex curvature to the first side blade and to the second side blade.
• the heddle comprises at least one inflection piece configured to generate an inflection point of concave shape to at least one blade, independently of the conformation of the spacers.
• the at least one inflection piece is for example placed in abutment against said blade, so as to be spaced from the at least one spacer, so as to apply a stress generating a concave bending of said blade.
• the at least one inflection piece is for example arranged on two adjacent blades, spaced apart from the at least one spacer, so as to generate a support on the two adjacent blades forcing them to a concave bending.
• the heddle comprises a tightening element configured to tighten the plurality of slats in a free end region of the slats, so as to reduce their stiffness.
• the expression 'free end region of the slats' means an end region opposite an end portion of the slats, the said end portion being intended to be fixed to the support device of the automatic barrier.
• the plurality of blades of the heald comprises a fibrous material, comprising in particular glass fibers, carbon fibers, aramid fibers, for example glass fibers in a resin matrix or poly(p - phenyleneterephthalamide) otherwise known by the Anglo-Saxon acronym PPD-T or the name Kevlar®.
• the invention proposes an automatic barrier for controlling vehicle traffic, in particular on traffic lanes or sites with controlled access, the automatic barrier comprising:
• a support device configured to fix the automatic barrier to the ground
• - a smooth as previously described, the smooth being movably mounted on the support device between a closed position in which the smooth prevents access and an open position in which the smooth allows access, -
• An actuation system configured to actuate the movement of the rail between its closed position and its open position.
• the actuation system comprises a re-tensioning device allowing the re-tensioning of the arm after an impact.
• the automatic barrier is fitted with a flexible arm, absorbing shocks and which can be automatically returned to the closed position, when a vehicle has struck it and unhinged it.
• FIG. 1 illustrates a schematic perspective view of an automatic barrier comprising the arm according to one embodiment of the present invention.
• FIG. 2 illustrates a schematic perspective view of the heddle in the deformed position according to the embodiment illustrated in Figure 1.
• FIG. 3 illustrates a top view of the heddle according to the second embodiment of the invention.
• FIG. 4 illustrates a schematic perspective view of the heddle according to an alternative embodiment of the invention.
• the automatic barrier 100 comprises a support device 1 configured to fix the barrier 100 to the ground and a smooth 200 according to the invention, movably mounted on the support device 1 between a closed position in which the smooth 200 prohibits traffic (the rail 200 extends substantially horizontally when the barrier is mounted on horizontal ground) and an open position in which the rail 200 allows traffic (not shown, the rail 200 extends substantially vertical when the barrier is mounted on horizontal ground).
• the automatic barrier 100 further comprises an actuation system 2 configured to actuate the movement of the arm 200 between its two positions, via a connecting portion 3 connecting the arm 200 to the actuation system 2.
• the barrier 100 further comprises a re-hinging device allowing the heddle 200 to be returned to the closed position.
• the smooth 200 comprises two substantially planar blades 4, held spaced apart and substantially facing each other by a spacer system.
• the spacer system is composed of several spacers 5 spaced along the rail 200. More precisely, the spacers 5 are inserted between the two adjacent blades 4 by fixing them each in a plane respective extension plane and parallel to each other (the extension plane is a substantially vertical plane when the barrier is mounted on horizontal ground).
• This configuration of the blades 4 confers flexibility on the smooth 200 which can thus deform elastically in a plane perpendicular to the extension planes of the blades 4. As illustrated in FIG.
• the rail 200 passes into a deformed position D in which a portion of the rail 200 is oblique with respect to the direction of traffic X.
• the rail 200 can deform up to form a deformation angle reaching 90° and thus prevent it from breaking.
• the blades 4 of heddle 200 are moreover made of a material comprising glass fibers in a resin matrix, so as to confer lightness and flexibility on the heddle.
• each of the spacers 5 comprises at least a first support surface 6 in support with one of the two blades 4 and a second support surface 7 in support with the other of the two blades 4.
• At least the first bearing surface 6 is configured (by a slight concave curvature) to generate a slight convex curvature to said blade 4 in support.
• each blade portion 4 arranged between two spacers 5 takes a slight concave inflection between the spacers 5.
• the second support surface 7 also has a slight concave curvature, the curvature is transferred to the two blades 4 of the heddle 200 in support .
• FIG 3 illustrates an enlargement of a heald 200 configured according to a second embodiment of the invention.
• the heddle 200 comprises three blades 4 instead of two.
• smooth 200 consists of a central blade 8 surrounded by a first side blade 9 and a second side blade 11. These three blades 4 are substantially flat and held facing each other in pairs. They are fixed in pairs of adjacent blades 4, according to the same configuration as that having two blades 4.
• the three blades 4 extend in three distinct extension planes, parallel to each other.
• the spacer system comprises spacers 5 spaced apart along the rail 200.
• the spacers 5 are also joined in pairs, extending on either side of the central strip 8 and respectively between the first side strip 9 and the second side blade 11, which makes it possible to confer the desired flexibility on the smooth 200.
• the spacers 5 have a first support surface 6 against the first side blade 9 or the second side blade 11, configured to generate a slight convex curvature to the blade 9.11 in support.
• the first support surface 6 imparts a slight convex curvature thanks to a slightly concave surface.
• the second support surface 7 of the spacers rests on the central blade 8 intended to remain flat, the second support surface 7 is devoid of any means for bending the blade 8.
• An alternative embodiment of the spacer system is illustrated in Figure 4.
• This spacer system comprises a spacer 5 of elastomeric material, extending longitudinally between the two adjacent blades 4, over the entire length of the blades 4. According to another possibility not illustrated, the spacer 5 extends over at least 50% of the length of the blades 4.
• the heddle 200 comprises a plurality of substantially planar blades 4, kept spaced apart, substantially opposite each other and each extending in a respective extension plane, the planes being parallel to each other.
• the smooth according to the invention comprises light and flexible blades, conferring significant flexibility on the smooth in a plane perpendicular to the planes of extension of the blades, while remaining very rigid in the plane of extension, so as to avoid oscillations when opening/closing the beam.
• This ability to elastically deform in a plane can be enhanced by spacers or other inflection pieces complementary to the spacers, configured to introduce concave inflection points on the blades.
• the smooth thus obtained can be deformed according to an angle of 90° and then return to the initial closed position without damaging the slats.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
• Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
• Catching Or Destruction (AREA)
• Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=76807768

Family Applications (1)

Country Status (4)

Family Cites Families (4)

• 2021
  • 2021-05-03 FR FR2104648A patent/FR3122442B1/fr active Active
• 2022
  • 2022-05-03 WO PCT/FR2022/050857 patent/WO2022234230A1/fr active Application Filing
  • 2022-05-03 EP EP22724816.8A patent/EP4334533A1/de active Pending
• 2023
  • 2023-11-15 CO CONC2023/0015393A patent/CO2023015393A2/es unknown

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