EP2126221A1 - Limite de voie de circulation escamotable - Google Patents

Limite de voie de circulation escamotable

Info

Publication number
EP2126221A1
EP2126221A1 EP07801291A EP07801291A EP2126221A1 EP 2126221 A1 EP2126221 A1 EP 2126221A1 EP 07801291 A EP07801291 A EP 07801291A EP 07801291 A EP07801291 A EP 07801291A EP 2126221 A1 EP2126221 A1 EP 2126221A1
Authority
EP
European Patent Office
Prior art keywords
roadway
pit
boundary according
guardrail
support
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Withdrawn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
EP07801291A
Other languages
German (de)
English (en)
Inventor
Jürgen KERN
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.)
Maha Maschinenbau Haldenwang GmbH and Co KG
Maha GmbH and Co KG
Original Assignee
Maha Maschinenbau Haldenwang GmbH and Co KG
Maha GmbH and Co KG
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 Maha Maschinenbau Haldenwang GmbH and Co KG, Maha GmbH and Co KG filed Critical Maha Maschinenbau Haldenwang GmbH and Co KG
Publication of EP2126221A1 publication Critical patent/EP2126221A1/fr
Withdrawn legal-status Critical Current

Links

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 invention relates to a retractable roadway boundary with a longitudinally extending in the roadway guardrail, formed in the roadway channel-like pit for receiving the guardrail and with a support and lifting system, which lowered the guardrail between a lowered in the pit in the driving level driving position and a raised Limit position moves.
  • CH-A-2346/01 discloses a lane boundary for multi-lane carriageways designed for installation in two-lane tunnels with the purpose of reducing the risk of serious traffic accidents as well as the causes of extreme fires in road tunnels.
  • This known roadway boundary has a substantially horizontal profiled carrier extending continuously in the roadway longitudinal direction, which is mounted on dimensionally stable posts provided at predetermined intervals. With the help of these posts, the so-called guardrail-forming profile carrier can be moved from an upper traffic-moderately limiting normal position to a lower in-roadway over-travel position. In this lower override position, the entire multi-lane width of the road is available, eg for heavy-duty transports.
  • the lifting system used in this known roadway limitation each contains a hydraulic lifting cylinder for each post, so that these posts are hydraulically raised and lowered together with the profile carrier.
  • the cylinder housings of the lifting posts are inserted in counterbores of a continuous slot trench.
  • To operate the hydraulic lifting cylinder arranged in a slot trench motor pump is used.
  • a disadvantage of this known roadway limitation is the considerable technical effort, which is caused inter alia by the hydraulic units.
  • the extended side members and the lifting system are sensitive to lateral shock loads, since the side rails forming the guard rails are supported only on the posts and connected to the piston of the hydraulic cylinder.
  • a roadway boundary having a two-part boundary beam supported by pivotal support posts.
  • the support posts are hingedly connected at their upper ends to the barrier rail forming a guardrail and supported at their lower ends in a channel formed in the ground.
  • As a lifting member are hydraulic cylinders which are articulated to the pivotable support post and pivot these posts for lifting the guardrail from an approximately horizontal position to a vertical position. Due to the articulation of the upper ends of the posts on the boundary bar or guardrail this is moved from its lowered position in a raised limit position. However, this lifting movement is superimposed on an undesired horizontal movement of the crash barriers.
  • the object of the invention is to provide a retractable roadway boundary for multi-lane roads, which allows for technically little effort, even after long periods of reliable operation of the support and lifting system for raising and lowering the guardrail.
  • guardrail is mounted on a dimensionally stable longitudinal member
  • the Leksträ- ger rests on pivotal struts, which are mounted in support bearings on the pit floor
  • the lifting system has a substantially horizontally acting drive element, which for raising and lowering of the longitudinal member is mechanically coupled to the pivotable struts.
  • the roadway boundary consists of a plurality of individual segments of respectively suitable length dimensions.
  • the channel-like pit for receiving the support and lifting system has stable side walls and a bottom of pressure-resistant material, e.g. Concrete, up. At the upper corner regions of the side walls supporting elements are fixed, on which the dimensionally stable longitudinal member is firmly supported in its raised position in the roadway position.
  • An essential aspect of the invention is that the lifting system is arranged entirely within the pit and the dimensionally stable longitudinal member is part of a support structure which is received in the lowered position in the pit or rests on the base and in the raised position with sufficiently high strength supported by supporting elements so that the passing loads can be recorded.
  • the side member, together with the guardrail mounted on the top, carries out purely vertical movements so that optimum space utilization is ensured.
  • the lifting system for raising and lowering of the longitudinal member includes a substantially horizontally acting drive element which is directly connected to a plurality of successively spaced with spacers struts or via intermediate links.
  • a Druckstoffzy cylinder with a sufficiently long stroke, a screw spindle operation, flexible tension cords or other suitable aggregates can be used, which also after long inactive periods, e.g. several months or years, can be reliably operated by simple measures.
  • a particularly cost-effective and reliable way to raise and lower the side members is the use of flexible tension cords, which are connected at one end to a drive unit and possibly attack via deflecting rollers on the pivotable struts.
  • the drive energy for the pivoting movements can provide a mobile or built in the pit winch.
  • the road boundary according to the invention is particularly suitable for such applications in which the vehicles must be led from one lane to another lane.
  • the continuous pit in which the lifting system is accommodated, is bounded by two lateral concrete walls and a concrete base provided with seepage openings.
  • the base may consist of more or less wide crossbars, which merge into the two side walls at the end.
  • a pit element of up to 40 m in length consisting of the two side walls and the base, manufactured as precast concrete and transported to the site. So that a high strength of the overall system against lateral impact loads is achieved in the raised boundary position, the supporting elements attached to the upper corner regions of the concrete side walls of the pit are expediently designed as profile rails.
  • each rail consists of an upper corner region of the concrete sidewall overlapping angle rail and a detachably attached to this first angle rail second angle rail.
  • the second angle rail which protrudes with its horizontal leg into the free space of the pit, be removed by loosening the respective connecting elements to remove the entire lifting system or its parts from the pit.
  • the longitudinal member is supported on a plurality of spaced with respective interspacing one behind the other in the pit arranged pivotable struts, which may be formed, for example, a frame-shaped.
  • the lower ends of the frame-shaped struts can be connected to one another via a transverse spar rotatably mounted on the pit base.
  • a transverse spar rotatably mounted on the pit base.
  • a plurality of transverse pins may be provided which are rotatably mounted in stationary - upwardly open - support bearings. In the upright position, the struts are expedient slightly tilted over to prevent an arbitrary unwanted swinging back.
  • cover strips which cover lateral gap spaces between the guard rail and the pit walls when the guard rail is lowered.
  • cover strips can be actuated by swivel bracket, weights or other suitable mechanisms, namely automatically with the lowering of a component of the lifting system.
  • the drive element for United pivot the frame-shaped struts at least one approximately horizontally in the pit longitudinally aligned Druckschzy- be linder whose stroke corresponds approximately to the pivot radius of the frame-shaped struts.
  • the piston rod of this pressure medium cylinder is articulated with its free end to the nearest frame-shaped strut.
  • pivotal struts are coupled together by push and pull rods for synchronous pivoting movements.
  • the struts have expediently on their upper end sliding blocks or rollers as support elements for the longitudinal member.
  • FIG. 1 shows a first embodiment of the roadway boundary according to the invention with raised guardrail in a schematic cross section.
  • FIG. 2 schematically shows the road boundary according to FIG. 1 with the guardrail lowered;
  • FIG. Fig. 3, 4 the road boundary of Figure 1, 2 in partial longitudinal section with raised and lowered guardrail.
  • FIG. 5 shows a further embodiment of the roadway boundary according to the invention in schematic cross section
  • 6a show a further exemplary embodiment of the road boundary according to the invention with retracted guard rail in a schematic longitudinal section and in a schematic perspective view;
  • FIGS. 6, 7 shows a detail of the embodiment according to FIGS. 6, 7 in a schematic perspective illustration
  • Fig. IO is a frame-like pivotable strut in a schematic perspective view
  • Fig. 11 shows a further embodiment of the invention in a schematic cross section with raised and lowered guardrail.
  • a guardrail 1 is mounted on a supporting structure.
  • the guardrail 1 has vertical posts 3, which are fixed at predetermined longitudinal intervals on a dimensionally stable continuous side member 4 of a lifting system 2.
  • the longitudinal member 4 is a dimensionally stable optionally slightly profiled elongated steel plate.
  • the guard rail 1 mounted on both sides of the vertical post or support struts 3 lower and upper Hohlprof ⁇ le 5, 6.
  • two lower hollow profiles 5 are mounted vertically above one another on each side of the posts 3 by means of lever-shaped holders 7.
  • These lower hollow profiles 5 have an approximately bow-shaped open on one side cross-section and a predetermined deformation behavior to absorb impact energy of a car can.
  • the arranged on both sides at the upper end of the vertical support struts 3 upper hollow sections 6 have a rectangular profile and should according to their altitude collision loads collected by trucks.
  • the support structure and the lifting system 2 are located in a pit 10, which is formed by trough-shaped precast concrete segments 11.
  • the longitudinal and transverse dimensions of these precast concrete segments 11 are chosen so that these segments can possibly be transported together with the pre-installed further system parts on normal sized commercial vehicles.
  • Preferred lengths of the segments 11 are about 15 to 18 m, with two or more segments 11 can be installed one behind the other.
  • 11 seepage openings 16 are provided in the base 14 of the segments.
  • each segment 11 At the upper inner edges of the side walls 12, 13 of each segment 11 are brackets 17, 18 secured by screws or other elements that can extend throughout the entire length of the respective segment 11.
  • each of these angle rails 17, 18 each have a second angle rail 19, 20 fixedly connected to their respective vertical leg whose horizontal leg protrudes into the free space of the pit 10.
  • the second win- Kelschienen 19, 20 are detachably connected to the outer angle rails 17, 18, for example by screws and can be disassembled by loosening the screw connections.
  • the angle rail pairs 17, 19 and 18, 20 form dimensionally stable support elements for the longitudinal carrier located in its upper position 4.
  • the longitudinal member 4 is supported in the raised operating state on pivotable tipped-over struts, which each have two parallel support rods 24.
  • the lower ends of these two support rods are attached to a cross member 25 which is rotatably supported in bearings 26 of the base 14.
  • the upper ends of the two support rods 24 are connected by a transverse bar 27 with a round profile, which rolls on a pivoting movement of the struts on the underside of the dimensionally stable longitudinal member 4.
  • 11 two cover strips 29, 30 are arranged on the upper side of the side walls 12, 13 of the precast concrete segments, which can be moved transversely from the position shown in Fig. 1 in the covering position of FIG to cover clearances between the guardrail rails 6 and the side walls 12, 13 of the concrete segments when the superstructure 1 has been moved to the lowered position shown in FIG.
  • a special mechanism is provided here, which is actuated by the lowering movement of the lifting system 2 and a ne automatic transverse displacement of the two cover plates 29, 30 causes.
  • swivel bracket 31, 32 are mounted in holders 33, 34 on the two side walls 12, 13 of the pit 10 pivotally.
  • These swivel bars 31, 32 have a lower slightly bent portion 35, 36 and engage with their upper ends in drivers 37, 38, which are secured to the underside of the cover plates 29, 30.
  • the lifting system 2 of the illustrated embodiments contains as the actual lifting member at least one corrosion-resistant flexible tensile strand 40, which is shown here as a rope and on a arranged at the front end of the pit 10 drum 41 up and can be unwound.
  • This tension cord 40 runs over a deflection roller 42 mounted in the end wall 15 to a further deflection roller 43 mounted on the dimensionally stable profile support 4 and from this to a further deflection pulley (not shown) at the rear end of the profile support 4 and to a fixed stop located at ground level.
  • By winding the cable 40 on the drum 41 of the profile carrier 4 is raised from the lowered position shown in Fig. 4 in the upper position of FIG.
  • the lowering of the profile carrier 4 is carried out by its own weight, 41 corresponding braking forces are applied to the winding drum to a to ensure slow uniform lowering of the overall construction.
  • the road boundary according to the invention is permanently in the raised limit position and only in the presence of special situations, such as a lane change after an accident, moved into the lowered over-travel position, the winding drum 41 can be coupled to the winch of a road vehicle. In this way, the provision of a separate drive unit for the winding drum 41 can be omitted, which has an advantageous effect on the investment costs and also on the maintenance.
  • Fig. 5 corresponds in its structural design to the embodiment of FIGS. 1 to 4, so that the same components are provided with the same reference numerals.
  • guard rail elements can also be used on the lifting system designed according to the invention.
  • each bearing block has an upwardly a V-shaped cutout 53, which merges into a lower semicircular part.
  • a bearing block pair 51 forms a pivotable support bearing for a stable cylindrical transverse pin 54, which is at the lower end of a support strut of a frame-shaped strut 55, for example by welding, attached.
  • the frame-shaped strut 55 has two parallel profile struts 56, which are connected to one another in the lower region by a transverse iron 57.
  • the upper parts of the two support struts 56 are interconnected by a hinge rod 58 on which two pairs of push and pull rods 59, 60 are mounted.
  • the frame-shaped strut 55 is pivoted in its lower support bearing 51.
  • sliding or rolling elements are arranged, on which the longitudinal member 4 rests.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

L'invention a pour objet une limite de voie de circulation escamotable comprenant un rail de sécurité (1) s'étendant en direction longitudinale de la voie de circulation, une tranchée (10) en forme générale de canal, formée dans la voie de circulation, et un système porteur et de levage (2) déplaçant le rail de sécurité (1) entre une position de dépassement abaissée, dans la tranchée (10) dans le niveau de voie de circulation, et une position de délimitation relevée. L'invention est caractérisée en ce que le rail de guidage (1) est fixé sur une poutre longitudinale indéformable (4) qui s'applique sur des entretoises oscillantes (24). Les entretoises sont montées oscillantes dans des paliers d'appui inférieurs (51) au fond de la tranchée. Le système de levage (2) présente un élément d'entraînement (40, 41) agissant sensiblement horizontalement, et qui est accouplé mécaniquement avec lesdites entretoises (24), pour le levage et l'abaissement de la poutre longitudinale (4).
EP07801291A 2006-09-05 2007-08-30 Limite de voie de circulation escamotable Withdrawn EP2126221A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610041608 DE102006041608A1 (de) 2006-09-05 2006-09-05 Versenkbare Fahrbahnbegrenzung
PCT/DE2007/001554 WO2008028463A1 (fr) 2006-09-05 2007-08-30 Limite de voie de circulation escamotable

Publications (1)

Publication Number Publication Date
EP2126221A1 true EP2126221A1 (fr) 2009-12-02

Family

ID=38830446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07801291A Withdrawn EP2126221A1 (fr) 2006-09-05 2007-08-30 Limite de voie de circulation escamotable

Country Status (3)

Country Link
EP (1) EP2126221A1 (fr)
DE (1) DE102006041608A1 (fr)
WO (1) WO2008028463A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2418324B1 (fr) 2010-07-22 2012-12-26 Jörg P. Junker Agencement de glissières de sécurité
CN108643093B (zh) * 2018-05-10 2020-09-01 浙江君意文化传媒有限公司 一种具有快速更换功能的潮汐车道
DE102019129862A1 (de) * 2019-11-06 2021-05-06 Eduard Roth Schienenfahrzeug für eine Schutzplanke, Transportsystem mit einem solchen Schienenfahrzeug
CN113700372A (zh) * 2021-08-27 2021-11-26 国网山东省电力公司商河县供电公司 一种变电箱维护用安全围栏

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH660896A5 (de) 1983-06-13 1987-05-29 Burri Ag Fahrbahn-abschrankungsstrecke.
ITTN20000005A1 (it) * 2000-02-10 2001-08-10 Kaufer Italia Snc Di Dini Fran Barriera di sicurezza riducibile ostto il piano stradale per l'apertura rapidissima dei varchi centrali incustoditi esistenti fra le due car

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008028463A1 *

Also Published As

Publication number Publication date
DE102006041608A1 (de) 2008-03-06
WO2008028463A1 (fr) 2008-03-13

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