EP3569765A1 - Élément de limite de voie ainsi que procédé d'ouverture d'un élément de limite de voie et utilisation d'un dispositif technique fluidique destiné à l'ouverture d'un élément de limite de voie - Google Patents

Élément de limite de voie ainsi que procédé d'ouverture d'un élément de limite de voie et utilisation d'un dispositif technique fluidique destiné à l'ouverture d'un élément de limite de voie Download PDF

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Publication number
EP3569765A1
EP3569765A1 EP18172636.5A EP18172636A EP3569765A1 EP 3569765 A1 EP3569765 A1 EP 3569765A1 EP 18172636 A EP18172636 A EP 18172636A EP 3569765 A1 EP3569765 A1 EP 3569765A1
Authority
EP
European Patent Office
Prior art keywords
roadway
telescopic
delimiting
fluid power
guard rail
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.)
Granted
Application number
EP18172636.5A
Other languages
German (de)
English (en)
Other versions
EP3569765B1 (fr
Inventor
Herrmann Wenger
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.)
Wenger Projekte und Coaching
Original Assignee
Wenger Projekte und Coaching
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 Wenger Projekte und Coaching filed Critical Wenger Projekte und Coaching
Priority to EP18172636.5A priority Critical patent/EP3569765B1/fr
Publication of EP3569765A1 publication Critical patent/EP3569765A1/fr
Application granted granted Critical
Publication of EP3569765B1 publication Critical patent/EP3569765B1/fr
Active 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
    • 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
    • E01F15/12—Continuous barriers extending along roads or between traffic lanes and having means for providing occasional passage, e.g. for emergency vehicles

Definitions

  • the present invention relates to a roadway limiting element, as well as a method for opening a roadway boundary element and the use of a fluid power device for opening a roadway boundary element.
  • guardrails Various such roadway boundary elements, colloquially called guardrails, are known from the prior art.
  • the purpose of the lane boundary is to keep vehicles in the event of an accident on the road.
  • Generic Fahrbahnbegrenzungs comprise but allow to provide a passage for emergencies.
  • a roadway limiting element which comprises a stationary element and a telescopic element.
  • the telescopic element is movable relative to the stationary element, wherein the telescopic element is displaceable in particular in a guard rail element.
  • the telescopic element and the stationary element are connected or connectable by means of a locking device.
  • the locking device is connected by means of a power transmission element, in particular a traction mechanism drive, with a fluid power device.
  • the locking device and the telescopic element are movable by the fluid power device.
  • the fluid power device comprises a pressure accumulator.
  • the equipment of the roadway boundary element with a fluidic device having a pressure accumulator allows a force-saving movement of locking device and telescopic element independently of an external power source.
  • no further motor drive device is provided.
  • the fluidic device may be configured as hydraulics or as pneumatics. If the telescopic element can be displaced into a guard rail element, the telescopic element can be moved without requiring further space.
  • the roadway limiting element preferably has fastening elements, in particular threads.
  • the fastening elements are located in particular at the center of gravity of the roadway boundary element.
  • the mounting options serve the attachment of lifting lugs.
  • a roadway limiting element preferably comprises a grip element.
  • the locking device can be opened.
  • the grip element in particular the telescopic element is movable, in particular when the pressure accumulator of the fluid power device is not filled.
  • the road boundary element is independent of the existing pressure and the functionality of the fluid power device and can always be operated in an emergency.
  • the telescopic element has a stroke length of at least 1.6 m.
  • Such a width of the emergency opening allows easy passage of extinguishing support vehicles.
  • the fluidic device of a roadway limiting element comprises a movement element, in particular a hydraulic or pneumatic cylinder, a connecting device and a control element, in particular a release button.
  • a moving element such as a hydraulic or pneumatic cylinder
  • the pressure from the accumulator can be easily converted into a movement that can be transmitted to the power transmission element by a connecting device such as collars, joints, rings, hooks, turnbuckles or other suitable devices.
  • a connecting device such as collars, joints, rings, hooks, turnbuckles or other suitable devices.
  • the fluidic device of the roadway limiting element is arranged outside the telescopic element.
  • the fluid power device is arranged in a guard rail element.
  • the telescopic element is less heavy and can be moved with less force.
  • the hydraulic device is arranged in a guard rail element, it is exposed to less external influences and thus less maintenance. Further, no additional cover is needed, which requires less material and thus reduces manufacturing costs.
  • the road boundary element or the guard rail element comprises a closable opening, in particular a cover which can be fastened with screws, preferably to allow access to the fluid power device.
  • a closable opening allows easy access to the fluidic device to perform maintenance such as oil changes without requiring complete disassembly. This reduces time and effort.
  • the fluid power device or at least parts thereof is mounted on a support member.
  • the support element is in particular a plate with a wall thickness between 1-10 mm.
  • the plate is made of steel in particular.
  • the carrier element is formed substantially in a guard rail element. The carrier element with the fluidic device can be removed in particular from the guard rail element.
  • the support member may be made of steel, aluminum, plastic or other suitable material that forms a cheap and stable variant for a support member.
  • the fluid-technical device of a road boundary element preferably comprises a hand pump with which the pressure reservoir of the fluid power device can be charged.
  • Charging in the context of this invention means increasing the internal pressure of the pressure accumulator by pumping in a fluid, such as a fluid, in particular a hydraulic oil or air. So that the hand pump can be easily accommodated and operated, it can be arranged at an angle W in another element, such as the guard rail element, the angle W being in the range of 20 ° to 60 °.
  • the angle W is formed in the context of the invention between a longitudinal axis of a cylinder of the hand pump and the longitudinal axis of the guard rail element.
  • At least one pressure sensor is formed in the pressure accumulator of the fluid power device, wherein the pressure sensor is preferably connected to a data transmission unit.
  • the pressure sensor can be arranged in the pressure accumulator or a connected line, which has a same pressure level, or allows conclusions about the pressure level in the pressure accumulator.
  • the fluidic device of the roadway limiting element comprises a valve and a movement element, in particular a hydraulic or pneumatic cylinder.
  • the speed of movement of the moving element is adjustable by the valve, in particular the adjustment of the mass flow of the fluid through the valve.
  • the movement speed is adjustable so that the displacement time of the telescopic element over its stroke length is 5-10 seconds.
  • an opening time of the emergency opening can be selected, which corresponds to the given situation and / or the specifications.
  • the operating element of the fluid power device may comprise a locking pin. By attaching the locking pin movement of the control element is blocked.
  • the control element has a diameter of 100 mm.
  • the advantage of such an operating element is that even persons with a motoric handicap are able to operate the emergency opening and thus save themselves.
  • the control element may be made of plastic, another plastic or similar suitable material.
  • a vehicle in particular passenger car, with a mass of 1300 kg, a speed of 80 km / h in an impact angle of 8 ° and / or a vehicle, especially a truck, with a mass of 10000 kg, a Speed of 70km / h in an impact angle of 8 ° by the locking device of the road boundary element available.
  • the road boundary element withstands the impact at a level T3 according to EN 1317-2.
  • the roadway limiting element preferably comprises an opening cock.
  • the opening tap of the fluid power device can be opened and closed by an operating element.
  • the operation of the road boundary element is thus easy and fast.
  • the object is further achieved by a method for opening a road boundary element.
  • the object is achieved by a road boundary element as described above.
  • a locking device is moved through the fluid power device.
  • the movement of the locking device unlocks the connection between the telescopic element and the stationary element.
  • a telescopic element is moved by the continuation of the movement of the fluid power device, in particular displaced into a guard rail element.
  • a road boundary element can be easily opened.
  • Roadway boundary elements therefore typically have an elongated extent Lane direction, wherein the roadway boundary elements have a longitudinal axis extending in the intended use of the roadway boundary element in the direction of travel.
  • the stationary element and the telescopic element of the roadway boundary element and the guard rail element each have two side walls.
  • sidewalls are elements that are laterally disposed relative to a vertical plane extending through the longitudinal axis.
  • the side walls of the telescopic element and the guard rail element are each connected to each other and are each formed parallel to each other. Preferably, they are connected to each other such that the telescopic element and / or the guard rail element are formed as a hollow profile.
  • the telescopic element is arranged displaceably within the guard rail element along a longitudinal axis, wherein in a cross-section transverse to the longitudinal axis, the telescopic element is substantially enclosed by the guard rail element.
  • Both the telescopic element and the stationary element as well as the guard rail element have a symmetrical to a extending through the longitudinal axis L vertical plane cross-section.
  • the roadway limiting element may have a traction mechanism drive, in particular a cable drive, for displacing the telescopic element relative to the stationary element.
  • the traction mechanism can be arranged between a side wall of the guard rail element and a side wall of the telescopic element, in particular in a recess of the telescopic element, and extends in the direction of the longitudinal axis.
  • the recess on the telescopic element can be placed substantially centrally with respect to a vertical height of the telescopic element, which essentially corresponds to the outer dimensions of the telescopic element. This means that the depression is located in the middle third of the telescopic element.
  • the traction mechanism can be arranged vertically, that is, a rotation axis of the drive will extend substantially horizontally. Additionally or alternatively, it can be provided to arrange the traction mechanism drive in a bulge of the guard rail element or that the road boundary element has two mutually opposite traction mechanism drives.
  • the vertical arrangement of the traction mechanism drive makes it possible to dispense with an additional support of the individual dreams. It is possible that the traction mechanism drive has a reduction.
  • each road boundary element It is possible to equip each road boundary element with a crank, which is used in case of need in the coupling.
  • the crank can be mounted sunk for this purpose on the road boundary element.
  • a separate crank does not have to be provided for each road boundary element.
  • the telescopic element can be mounted by means of rollers on the guard rail element.
  • the rollers are preferably located within the guard rail element and are in operative connection with one or more in Leitbrankenelement inner surfaces of the guard rail element.
  • the rollers are in particular arranged in pairs and may be arranged diametrically or offset from each other.
  • the rollers support a side wall of the telescopic element on a side wall of the guard rail element. A vertical guidance is thereby made possible.
  • rollers are provided in pairs on top and bottom of the telescopic element. For a horizontal guidance of the telescopic element is possible.
  • a support roller for receiving at least a portion of the dead weight of the telescopic element is formed on the telescopic element.
  • one end of the telescopic element moves away with respect to the guard rail element. Due to the weight of the telescopic element this tends to be bent with this end down. This can be prevented by the support roller.
  • the roadway limiting element comprises a locking device which may be designed as a hook and bolt. It is conceivable to form the hook with a tapered mounting slot, wherein a distance of the Befestistskulisse to a pivot point in a first position is greater than the distance of the Befest modskulisse to the pivot point in a second position.
  • the first element of the locking device may be formed as a disc with an eccentric.
  • Stationary element, telescopic element and guard rail element can be made of sheet metal elements.
  • the guard rail element and the stationary element of the road boundary element may substantially have the contour of an upside down T's.
  • the arms of the T form a base, the leg of the T forms a hollow profile.
  • Within the leg of the crash barrier element is the telescopic element.
  • the base of the guardrail element and the stationary element may have a bottom plate, which close the hollow profile.
  • Both telescopic element and stationary element as also the crash barrier element are preferably designed as a welded construction.
  • the FIG. 1 shows a roadway boundary element 100.
  • the roadway boundary element has three main elements, the stationary element 10, the telescopic element 20 and the locking device 30. These elements are arranged so that the locking device 30 between the stationary element 10 and telescopic element 20 forms a detachable connection.
  • the stationary element 10 has a substantially T-shaped cross-sectional shape. The crossbeam of the T forms a 300mm wide base, which is located below in accordance with the intended use.
  • the leg of the stationary element 10 is essentially a hollow profile.
  • the stationary element 10 has an inner element 42 which is similar in shape to the telescopic element 20 (cf. Fig. 4 . Fig. 6 ) on.
  • the telescopic element 20 can be moved into a crash barrier element 40.
  • the guard rail element 40 has substantially the same contour as the stationary element 10.
  • 20 different rollers 23, 24 and 25 are arranged in the telescopic element (see. FIG. 5 ).
  • the locking device 30 comprises a hook 32 and a bolt 31, wherein on the hook 32, a handle 35 and below the hook 32, a guide pin 39 is mounted (see. Fig. 4 ).
  • the telescopic element is 1665 mm, the stationary element 2800 mm and the guard rail element 7000 mm long.
  • the total length of the road boundary element 100 is 5000mm, the total height 510 mm.
  • the roadway limiting element 100 is typically arranged along a roadway, not shown here, and therefore has a longitudinal axis L in the direction of travel.
  • FIG. 2 shows the crash barrier element 40 in a sectional view.
  • the fluid power device 50 is arranged, here a hydraulic device 50, which is arranged on a support member 67 made of steel.
  • the hydraulic device 50 consists of the four main elements pressure accumulator 51, hydraulic cylinder 52, hand pump 53 and control element 54th
  • the pressure accumulator 51 is formed parallel to the longitudinal axis L of the crash barrier element 40 (cf. FIG. 1 ).
  • the pressure accumulator 51 is connected to a memory safety block 55.
  • the memory safety block 55 is connected to both a flow control valve 56 and a pressure gauge 57, which indicates the pressure in the hydraulic line 66.
  • the flow control valve 56 By the flow control valve 56, the opening speed of the emergency opening can be adjusted by the flow cross section of the measuring throttle of the flow control valve is enlarged or reduced by the stopcock 64.
  • the hydraulic cylinder 52 is formed substantially below the pressure accumulator 51 parallel to the longitudinal axis L of the crash barrier element 40.
  • the hand pump 53 is formed on the back of the hydraulic cylinder, wherein the axis of the cylinder of the hand pump 53 to the longitudinal axis L forms an angle W of 45 °.
  • the hand pump 53 can also be arranged at a different angle.
  • a check valve 58 is connected to the manual pump 53.
  • the hand pump 53 has a lever 59 which can be operated through an opening in the guard rail element 40, which is located in the leg end of the guard rail element 40. The opening can be closed with a cover 60.
  • the lid 60 can be fastened with screws. However, the lid 60 could also be clamped or attached in any other suitable manner.
  • a tank 61 is arranged below the hand pump 53, wherein the longitudinal axis of the cylinder to the longitudinal axis L forms an angle W of 45 °.
  • the tank 61 could also be arranged at a different angle.
  • the operating element 54 is formed in a further opening in the guard rail element 40, wherein this further opening is a continuous cut in the leg end of the guard rail element 40, as a result of which the operating element 54 can be operated from both sides of the guard rail element 40.
  • the operating element 54 is connected to an opening tap 62.
  • the hydraulic line 63 from the tank 61 to the check valve 58 of the manual pump 53 is blocked by the opening tap 62. At this line 63 of the manometer 58 is connected.
  • a hydraulic line 65 leads from the hydraulic cylinder port A to the tank 61.
  • Another hydraulic line 66 leads from the flow control valve 56 of the pressure accumulator 51 to the cylinder port B.
  • the hydraulic lines are arranged between pressure accumulator 51 and hydraulic cylinder 52.
  • the opening cock 62 is rotated by the angle K of 90 ° by depressing the operating element 54, whereby the hydraulic line 63 between the hydraulic cylinder 52 and tank 61 is opened.
  • the hydraulic oil can escape from the cylinder port A.
  • the hydraulic oil in the pressure accumulator 51 flows through the safety block 55 and the flow control valve 56 out into the cylinder port B and drives the hydraulic cylinder 52 so.
  • the control element 54 is pulled out, whereby the opening tap 62 is rotated by the angle K of 90 ° back and the hydraulic line 63 is thereby closed.
  • hydraulic oil is pumped from the tank 61 into the cylinder port A.
  • the hydraulic oil from the cylinder port B is pressed back into the pressure accumulator 51 by the flow control valve 56 and safety block 55.
  • LoRaWAN Long Range Wide Area Network
  • the manometer which is connected to the pressure accumulator, connected to a data transmission unit.
  • other suitable monitoring systems may be used, provided that this system covers the entire field of application of the roadway boundary element.
  • FIG. 3 shows a longitudinal section of the connecting device 70 between the hydraulic cylinder 52 and power transmission element 80 in the form of a traction mechanism such as a rope, in particular a steel cable. But it could also be used chains, belts or other long movable power transmission elements.
  • a guide tube 71 is fastened with a fastening element 72 at the rear end of the telescopic element 20.
  • piston rod 73 of the hydraulic cylinder 52, connecting element 74, turnbuckle 75 and cable clamp 76 are formed in the guide tube 71 .
  • the piston rod 73 of the hydraulic cylinder 52 is connected by means of the turnbuckle 75 with a connecting member 74.
  • the connecting member 74 in turn is also connected to the cable clamp 76.
  • the cable clamp 76 connects the power transmission element 80 with the connecting device 70.
  • the telescopic element 20 can be moved so the emergency opening to be opened and closed.
  • the handle element 35 By actuating the handle element 35 (FIG. FIG. 5 ), the guide tube 71 is moved over the piston rod 73.
  • FIG. 4 shows the locking device 30.
  • the locking device 30 is presently formed of two main elements, a retaining pin 31 and a hook 32 with a tapered contour.
  • the hook 32 is presently designed as a disc with an eccentric.
  • the retaining bolt 31 is arranged on the stationary element 10, the hook 32 on the telescopic element 20.
  • the hook 32 is rotatably mounted about a pivot pin 33. Below the hook 32, a guide pin 39 is arranged. The hook 32 can be rotated in the direction of arrow P.
  • a mounting slide 34 is arranged on the hook 32.
  • the mounting slide 34 has a first distance X1 and a second distance X2 to the pivot pin 33, so it is tapered.
  • the mounting backdrop 34 is configured with this distance to interact with the retaining pin 31 in operative connection.
  • the distance X1 is greater than the distance X2.
  • the hook 32 can be brought into engagement with the retaining bolt 31.
  • the guide pin 39 guides telescopic element 20 and stationary element 10 together so that a connection is facilitated.
  • a bias is created between the telescopic element 20 and the stationary element 10. They are connected securely.
  • FIG. 5 shows the telescopic element 20 in a sectional view. You can see the hook 32 and the traction mechanism 80, and the rollers 24 and 25, which are arranged on the telescopic element. Next rollers 23 are arranged on the guard rail element 40. The rollers 23, 24 and 25 support the telescopic element 20 and facilitate the displacement of the telescopic element 20th
  • the rollers 24 are arranged at the top and bottom of the telescopic element 20, wherein the upper rollers 24 are arranged offset to the lower.
  • the telescopic element 20 has four lower and four upper pairs of rollers 24, so a total of sixteen rollers 24th
  • the rollers 23 are arranged on the guard rail element 40 has two diametrically opposed, lateral rollers 23, wherein they are located in the recess 26 of the side wall of the telescopic element 20 (see. Figure 6 ).
  • the roller 25 is located below the hook and behind the guide pin and comes into contact with the ground, whereby it supports the telescopic element 20 and facilitates the movement of the telescopic element 20 over the ground.
  • rollers 23, 24 and 25 can also be used.
  • the axis of rotation 33 of the hook 32 is mounted on the side walls of the telescopic element 20, wherein the hook 32 is arranged substantially on the front side of the telescopic element 20.
  • a stop pin 36 is disposed adjacent to the hook 32.
  • the hook 32 is provided with a curvature 37, to which a connecting bolt 38 is attached.
  • a traction mechanism 80 here a rope 80, attached.
  • the telescopic element 20 Before opening the emergency opening, the telescopic element 20 is fully extended, the telescopic element 20 is in the position C.
  • the piston rod 73 of the hydraulic cylinder 52 is off FIG. 3 moved in. This is done by the connection device 70 FIG. 3 to a train on the traction mechanism 80, which is guided over a roller 81.
  • the train on the traction mechanism drive 80 By the train on the traction mechanism drive 80, the hook 32 is rotated about its axis of rotation until the curvature 37 reaches the stop pin 36.
  • the telescopic element 20 moves away from the stationary element 10 until the position B of the stroke length HL of the telescopic element 20 is reached.
  • the stroke length HL of the telescopic element 20 is the shortest distance between the hook 32 and the end face of the stationary element 10, that is to say the position B and C. This results in an opening in the road boundary element 100.
  • a thread is cut, to which a lifting eye, hook or other suitable fasteners attached can be.
  • the cross section of the FIG. 6 is marked in it.
  • the FIG. 6 shows a cross section along the line A of the FIG. 5 ,
  • the telescopic element 20 is arranged within the guard rail element 40. Both elements are essentially each formed from two separate halves. A one-piece production would be just as conceivable. Both elements have a symmetrical to a vertical axis extending through the longitudinal axis L vertical cross-section.
  • the side walls of the guard rail element 40 and the telescopic element 20 are formed parallel to each other.
  • the telescopic element 20 has a substantially rectangular cross section, wherein the side walls of the telescopic element 20 for supporting the rollers 23 a recess 26 at half the height of the telescopic element 20, which extends parallel to the longitudinal axis L.
  • the two side walls at the upper and lower ends are curved inwards to allow storage of the rollers 24. But it is also conceivable to secure the rollers 24 in a different way.
  • the base of the crash barrier element 40 has a base plate 41, which closes off the hollow profile of the crash barrier element 40.
  • the rollers 24 are visible, which support the telescopic element 20 relative to the guard rail element 40.
  • the in the FIG. 6 down rollers 24 are in contact with the base of the crash barrier element 10 and roll over this base.
  • offset 20 at the top of the telescopic element more rollers 24 are arranged (see. FIG. 5 ), which limit the telescopic element vertically upwards in its mobility.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
EP18172636.5A 2018-05-16 2018-05-16 Élément de limite de voie ainsi que procédé d'ouverture d'un élément de limite de voie et utilisation d'un dispositif technique fluidique destiné à l'ouverture d'un élément de limite de voie Active EP3569765B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18172636.5A EP3569765B1 (fr) 2018-05-16 2018-05-16 Élément de limite de voie ainsi que procédé d'ouverture d'un élément de limite de voie et utilisation d'un dispositif technique fluidique destiné à l'ouverture d'un élément de limite de voie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18172636.5A EP3569765B1 (fr) 2018-05-16 2018-05-16 Élément de limite de voie ainsi que procédé d'ouverture d'un élément de limite de voie et utilisation d'un dispositif technique fluidique destiné à l'ouverture d'un élément de limite de voie

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EP3569765A1 true EP3569765A1 (fr) 2019-11-20
EP3569765B1 EP3569765B1 (fr) 2022-10-26

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EP18172636.5A Active EP3569765B1 (fr) 2018-05-16 2018-05-16 Élément de limite de voie ainsi que procédé d'ouverture d'un élément de limite de voie et utilisation d'un dispositif technique fluidique destiné à l'ouverture d'un élément de limite de voie

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202020105599U1 (de) 2020-09-30 2022-01-11 Avs Group Gmbh Verkehrsleitwand
WO2022262963A1 (fr) 2021-06-16 2022-12-22 Wenger, Projekte Und Coaching Ensemble limites de voie de circulation et procédé de déviation de véhicules
RU2800181C1 (ru) * 2022-11-07 2023-07-19 Общество С Ограниченной Ответственностью "Торговый Дом "Безопасность. Сети. Связь" Противотаранное устройство

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4690583A (en) * 1986-04-08 1987-09-01 Faulconer Harry A Flat folding alternating barrier
DE202004011860U1 (de) 2004-07-28 2004-12-30 Sps Schutzplanken Gmbh Mittelstreifen-Überfahrt
GB2479722A (en) * 2010-04-19 2011-10-26 Heald Ltd Retractable security barrier for vehicles
US20130189030A1 (en) * 2011-07-21 2013-07-25 Gary D. Miracle Vertically actuated vehicle barrier system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4690583A (en) * 1986-04-08 1987-09-01 Faulconer Harry A Flat folding alternating barrier
DE202004011860U1 (de) 2004-07-28 2004-12-30 Sps Schutzplanken Gmbh Mittelstreifen-Überfahrt
GB2479722A (en) * 2010-04-19 2011-10-26 Heald Ltd Retractable security barrier for vehicles
US20130189030A1 (en) * 2011-07-21 2013-07-25 Gary D. Miracle Vertically actuated vehicle barrier system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202020105599U1 (de) 2020-09-30 2022-01-11 Avs Group Gmbh Verkehrsleitwand
WO2022262963A1 (fr) 2021-06-16 2022-12-22 Wenger, Projekte Und Coaching Ensemble limites de voie de circulation et procédé de déviation de véhicules
RU2800181C1 (ru) * 2022-11-07 2023-07-19 Общество С Ограниченной Ответственностью "Торговый Дом "Безопасность. Сети. Связь" Противотаранное устройство

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