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 lifting barriers intended to control the passage on a traffic lane.
• the present invention can find many applications.
• the barriers according to the present invention can in particular be used on motorway toll booths, parking accesses, etc.
• Many barriers have already been proposed.
• the known barriers generally comprise a heddle comprising a metal frame, for example and most often aluminum. Although having rendered great services, the known beams are not always entirely satisfactory.
• the following problems are frequently reported:. deterioration of vehicles, in particular breakage of windshield, during barrier closing operations,. pedestrian injury,. deterioration of the rails,
• the object of the present invention is to propose a new barrier which eliminates the drawbacks of the prior art.
• This object is achieved in the context of the present invention thanks to a barrier comprising a heald made of composite material.
• the use of composite material for producing the heald offers many advantages. First of all, it allows the production of a light smooth rail. And from there it makes it possible to lengthen the life of the drive mechanisms and to limit the risk of pedestrian injury and / or deterioration of vehicles.
• the central tube is made from 55 to 65% by weight of glass fiber yarns, from 45 to 35% by weight of carbon fiber and resin yarns, for example epoxy. .
• the central tube (110) consists of: - an inner layer formed of fiber yarns, said yarns being arranged longitudinally and parallel to each other, a central layer formed of fiber yarns oriented angularly in a helix with respect to the longitudinal axis of the tube, an outer layer formed of fiber yarns, said yarns being arranged longitudinally and parallel to each other, said inner, central and outer layers being obtained simultaneously and polymerized together in an epoxy resin to form a one-piece composite tube.
• the central tube is covered by a protective sleeve,.
• the protective sleeve is made of expanded polystyrene,
• the protective sleeve is formed by two symmetrical half shells whose mean junction plane corresponds to a diametral plane of the tube,
• the sleeve is covered by a sheath having the function of holding the elements making up the sleeve in place, even in the event of deterioration of the latter,
• an external cover covers all the elements making up the boom
• the beam is carried by a stirrup mounted for rotation about a horizontal axis on a terminal,
• the arm is rotatably mounted around a vertical axis, on the stirrup,
• FIG. 1 represents a schematic view in longitudinal section of the central tube of a safety barrier boom according to the present invention
• FIG. 2 shows a schematic cross-sectional view of the same heddle
• 3 shows a schematic side view of a security barrier according to the present invention
• Figure 4 shows a partial view of the security barrier according to the present invention.
• a safety barrier comprising a bar or smooth 100, horizontal at rest, carried by a stirrup 200 rotatably mounted about a horizontal axis 210 on a terminal 300.
• the stirrup 200 is rotated about the axis 210 by a motor housed in the terminal 300.
• the heddle 100 extends horizontally across a passage to be checked, to prevent free passage.
• the iisse is pivoted vertically upwards to release the aforementioned passage.
• the heddle 100 consists of a rectilinear central tube 110 of circular cross section, made of composite material, for example based on glass fibers, carbon fibers and epoxy resin.
• a tube structure 110 constituted by a set of carbon fiber and glass fiber yarns, coated with polymerized epoxy resin to bond the fibers parallel to each other and thus form the tube.
• the production of the tube 110 formed of an internal layer 112 of longitudinal and contiguous glass fiber yarns of a linear weight of between 60 and 70 g / ml, preferably 67 g / ml, covered with a helix
• the boom according to the invention is capable of bending of +/- 45 ° relative to its longitudinal axis during impacts with a car launched at 60 km / h and of +/- 55 ° at 80 km / h.
• the tube 110 is made by simultaneous pulltrusion of longitudinal contiguous glass fiber yarns drawn longitudinally by means of a first die while a second rotating die of a larger diameter helically pulls a central layer of yarns of contiguous glass fibers and that a third die of an even greater diameter pulls longitudinally yarns of contiguous carbon fibers.
• Each of the fibers is initially covered with epoxy resin, the latter being polymerized when the tube formed of its three layers is produced, so that all of the layers form a single piece.
• the tube made of composite material 110 is covered by a protective sleeve, for example made of expanded polystyrene 120.
• the main function of this sleeve is to prevent damage to vehicles during protect the composite 110 tube from any roughness that the boom may encounter during impacts (for example, roof bars, low wall, etc.).
• this sleeve 120 is formed by two symmetrical half-shells 122, 124, the mean junction plane of which corresponds to a diametral plane of the tube 110, that is to say a plane passing through the longitudinal axis of the tube 110.
• two shells 122, 124 are identical. Each half shell 122, 124 has a cross section corresponding to a half crown.
• the sleeve 120 preferably extends over almost the entire length of the tube 110. More precisely, as can be seen in the attached FIGS. 1 and 2, preferably the two half-shells 122 and 124 are ribbed longitudinally. Thus the two half-shells 122 and 124 each have, at their junction plane, on one side of the longitudinal axis, a projecting rib 121 and on the other side of the longitudinal axis, a groove in hollow 123, of cross section complementary to the aforementioned rib 121, suitable for accommodating the rib opposite the other half-shell.
• the use of ribbed half-shell 122, 124 makes it possible to strengthen the retention of the sleeve 120 on the tube 110, including during deformations undergone during impacts.
• the sleeve can be held on the central tube 110 by any suitable means, for example by gluing, advantageously using a silicone adhesive.
• the sleeve 120 is itself covered by a sheath 130 having the function of holding in place the elements making up the sleeve 120 of polystyrene, even in the event of deterioration of the latter.
• the sheath 130 is advantageously formed of a heat-shrinkable polyethylene (PE) sheath.
• PE heat-shrinkable polyethylene
• an external cover 140 covers the aforementioned assembly to ensure its protection with respect to shocks and to aid visibility. This cover can be made of PVC coated polyester fabric. To ensure visibility, the cover 140 has preferably on its external surface bands of contrasting or alternating colors, advantageously at least partially reflective.
• the red external surface of the cover 140 can be covered with a series (5 for example) of white retroreflective strips with a width of 50 mm distributed over the length of the smooth.
• the cover 140 is made in two parts to allow its easy replacement without dismantling the boom.
• the tube 110 has an internal diameter of around 35 mm, an external diameter of around 38 mm and a length of around
• the internal diameter of the half-shells 122, 124 is substantially equal to the external diameter of the tube 110 so that the half-shells 122, 124 closely match the external surface of the tube 110,
• the external diameter of the sleeve 120 is of the order of 100mm
• the external diameter of the sleeve is of the order of 100mm so that the thickness of the sleeve 120 is greater than 50mm, typically of the order of 60mm,.
• the density of the expanded polystyrene used for the production of the sleeve 120 is of the order of 20 kg / m 3 ,
• the sheath 130 is advantageously formed of a polyethylene sheath
• the cover 140 is made of polyester fabric coated with PVC 520g / m 2 and a thickness of 0.6mm,
• the linear weight per meter of the entire boom is less than
• the outer diameter of the arm is greater than 90mm, typically of the order of 100mm.
• the safety rail proposed in the context of the present invention offers numerous advantages compared to the means known from the prior art.
• the inventors have determined experimentally that the use of a core made of a tube 110 made of composite material makes it possible to tolerate significant deformation in the event of impact without causing or deterioration of the heddle, or significant adverse effect on the generating element. the impact. More precisely, the previously described boom, which has a total weight of around 2300g and a linear weight per meter of around 766g, has resistance to vehicle impacts up to
• the low inertia of the boom in accordance with the present invention due to its low mass, combined with its structure greatly limit the risks of injuring or knocking out a pedestrian attempting to cross the passage during a maneuver of the barrier. (it is recalled here that the operation of known barriers generally takes place in less than a second and that many accidents are observed with operating personnel, law enforcement or users, with known prior barriers ).
• the use of a boom having a large outside diameter (typically of the order of 100 mm) makes it possible to improve its visibility and already in itself limits the risk of impact, in particular by a pedestrian.
• a heald having a linear weight of less than 800 g / m makes it possible to increase the life of the drive mechanisms compared to the provisions of the state of the art.
• the present invention can affect all fields of application of safety lifting barriers, in particular but not limited to the field of automatic motorway tolls and parking tolls.
• the heddle 100 is carried by a stirrup 200 mounted for rotation about a horizontal axis 210 on a terminal 300. More precisely still, as can be seen in the attached FIGS.
• the end of the arm 100 adjacent to the stirrup 200 is engaged in a sleeve 220 which is itself mounted for rotation about a vertical axis 222, by means of hinges 224 or any equivalent means, on the stirrup 200.
• the heddle 100 is supported by the stirrup 200, distance from the hinges 224, by a clamp system 230.
• This is preferably formed by two elastic blocks 232, 234, in the form of shoes, disposed respectively below and above the heald 100.
• the heald 100 accompanies the movement of the stirrup 200, being held thereon by the clamp 230.
• those skilled in the art can replace the clamp 230 by any equivalent means making it possible to maintain the heald 100 secured to the stirrup 200 as long as the impact force applied to the heald 100 remains below a threshold, while by allowing the heald 100 to pivot horizontally relative to the stirrup 200 when this force exceeds a threshold.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
• Road Signs Or Road Markings (AREA)
• Containers Having Bodies Formed In One Piece (AREA)
• Laminated Bodies (AREA)
• Moulding By Coating Moulds (AREA)
• Rigid Pipes And Flexible Pipes (AREA)
• Ropes Or Cables (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

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ID=34586272

Family Applications (1)

Country Status (10)

Cited By (2)

Families Citing this family (5)

Family Cites Families (23)

• 2003
  • 2003-12-03 FR FR0314188A patent/FR2863279B1/fr not_active Expired - Fee Related
• 2004
  • 2004-12-02 PL PL04805615T patent/PL1697594T3/pl unknown
  • 2004-12-02 AT AT04805615T patent/ATE542957T1/de active
  • 2004-12-02 CA CA2548059A patent/CA2548059C/fr not_active Expired - Fee Related
  • 2004-12-02 EP EP04805615A patent/EP1697594B1/de active Active
  • 2004-12-02 WO PCT/FR2004/003095 patent/WO2005056928A2/fr active Application Filing
  • 2004-12-02 US US10/581,629 patent/US7484904B2/en not_active Expired - Fee Related
  • 2004-12-02 ES ES04805615T patent/ES2378235T3/es active Active
  • 2004-12-02 CN CN2004800361254A patent/CN1890436B/zh not_active Expired - Fee Related
• 2012
  • 2012-03-16 HR HR20120242T patent/HRP20120242T1/hr unknown

Non-Patent Citations (1)

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