WO1992002687A1 - Dispositif servant a ralentir et/ou a arreter un vehicule terrestre - Google Patents

Dispositif servant a ralentir et/ou a arreter un vehicule terrestre Download PDF

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Publication number
WO1992002687A1
WO1992002687A1 PCT/FI1991/000237 FI9100237W WO9202687A1 WO 1992002687 A1 WO1992002687 A1 WO 1992002687A1 FI 9100237 W FI9100237 W FI 9100237W WO 9202687 A1 WO9202687 A1 WO 9202687A1
Authority
WO
WIPO (PCT)
Prior art keywords
net
yeild
brake
rope
members
Prior art date
Application number
PCT/FI1991/000237
Other languages
English (en)
Inventor
Jarmo Uotila
Original Assignee
Jarmo Uotila
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 Jarmo Uotila filed Critical Jarmo Uotila
Publication of WO1992002687A1 publication Critical patent/WO1992002687A1/fr

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
    • E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
    • E01F13/02—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions free-standing; portable, e.g. for guarding open manholes ; Portable signs or signals specially adapted for fitting to portable barriers
    • E01F13/028—Flexible barrier members, e.g. cords; Means for rendering same conspicuous; Adapted supports, e.g. with storage reel
    • 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
    • E01F13/12—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions for forcibly arresting or disabling vehicles, e.g. spiked mats

Definitions

  • the present invention concerns a means as defined in the preamble to claim 1.
  • This means comprises an elongated net which has been arranged to grab hold of the moving vehicle, which net comprises a head rope and a foot rope.
  • the means comprise a first mast and a second mast, which masts have been set up at both ends of the net and have been arranged to keep the net tensioned between the masts.
  • the means comprise brake members, which have been connected between the net and the substantially rigid support points to both net ends into the head and foot rope, and which brake members have been arranged to absorb the kinetic energy of the moving vehicle. In some countries it is required, that the means to stop a vehicle can be utilized unexpectedly, ie.
  • the object of the invention is to eliminate the drawbacks mentioned above.
  • the object of the invention is to present a means, where the net stays all the time tensioned both in its upright and its downlaying positions, thus the net in its downlaying position can be driven over from either direction without the net losing its ability of function when lifted up.
  • the object of the invention is additionally to present a means, which makes possible a controlled and safe stopping of a moving vehicle.
  • the means of the invention for slowing down and/or stopping the motion of a land vehicle is characterized by that which has been stated in claim 1.
  • the masts have been arranged to pivot between the substantially horizontal downlaying position where the net lays on the ground and the substantially vertical upraised position; that into the system belong yeild members, which connect the head rope and/or the foot rope to the masts substantially tense in order to keep the net tight in its upraised and downlaying positions, and that the yeild members have been adjusted to yeild at a predetermined tensile force and release their hold after a predetermined yeild distance, and to keep the net tight when other vehicles drive over the downlaying net and when the vehicle to be stopped drives into the upraised net during the yeild distance.
  • the yeild distance of the yeild member is l - 10 m, suitably 1,5 to 4 m and advantageously 2 m.
  • the yeild member is a prior known fabric brake, which gives up after yeild. By giving up it is meant here, that the yeild member releases its hold on the net.
  • the fabric brake comprises two ribbons, which have been sewn together for the yeild distance.
  • the sewing together of the ribbons is ibn most cases enough to provide for the adequate yeilding force.
  • pull ropes comprising a first pull rope and a second pull rope; the first pull rope comprising a quick attachment member to attach it fast to the net; and the mast comprising a quick tensioning member to fast attachment of the second pull rope to the mast.
  • the assembly of the means ready for the stopping is very easy and fast with the aid of the quick attachment and tensioning members.
  • the yeild force of the yeild member is adjusted to higher level than the force, which occur while manually tensioning the net.
  • the net is manually tensioned, it is advantageous, if there is yet no yeild during tensioning.
  • the yeild force of the yeild member is 400 - 600 ⁇ , advantageously 500 N.
  • the brake members comprise first brake members and second brake members and the first brake member and the second brake member have been arranged to both ends of the net, when the first brake member of both ends of the net is connected to the nearest end of the net and the second brake member is connected to the opposite end of the net, and the first brake member is of the type which releases its hold after yeilding and the second brake member is of the type which locks after yeilding; and the first brake member comprises the mentioned yeilding member.
  • the invention enables a controlled and safe stopping of a moving land vehicle.
  • Fig.2 shows a detail of the means in Fig. l.
  • a means for stopping the motion of a land vehicle comprising an elongated net 1 to grab hold a vehicle in motion, which net comprises a head rope 2 and a foot rope 3.
  • the net 1 has been arranged to be lifted up across the drive path of the oncoming vehicle.
  • the means comprise a first mast 4 1 and a second mast A 2 , which masts have been set up at both ends of the net and have been arranged to keep the net tensioned between the masts.
  • the means comprise brake members 5 1 , 5 2 , which have been connected between the net and the substantially rigid support points 6 1 , 6 2 to both net ends into the head and foot rope.
  • the brake members 5 1 , 5 2 have been arranged to absorb the kinetic energy of the moving vehicle.
  • the support points 6 1 , 6 2 have been here held stationary with anchor vehicles.
  • the masts 4 1 , 4 2 have been arranged to pivot between the substantially horizontal downlaying position, where the net lays on the ground and the substantially vertical upraised position.
  • Fig. 2 is depicted the into the means belonging yeild members 7 1 , 7 2 , which connect the head rope 2 and the foot rope 3 to the top and bottom end of the mast 4 substantially tense in order to keep the net tight in its upraised and downlaying positions.
  • Fig. 2 is by purpose not depicted the brake members, which belong into the means and can be arranged in known ways.
  • the yeild members 7 1 , 7 2 have been adjusted to yeild at a predetermined tensile force and finally release their hold after a predetermined yeild distance, and to keep the net tight when other vehicles drive over the downlaying net and when the vehicle to be stopped drives into the upraised net during the yeild distance. In an arresting situation the net is not loose for even one moment and there does not occur any unwanted impulsive jerks, which might help the vehicle to be stopped to come off the net.
  • the length of the yeild member 7 1 , 7 2 is 1 - 10 m, suitably 1,5 - 4 m and advantageously 2 m.
  • the yeild member 7 1 , 7 2 is a device of the fabric brake type, which releases- its hold after the yeild, where two ribbons are sewn together to provide for a predetermined yeild distance and the device functions in such a way, that the ribbons are teared apart, which creates a constant resistance force.
  • pull ropes which comprise a first pull rope 10 and a second pull rope 11.
  • the first pull rope 10 comprises a quick attachment member 12 to attach into the net.
  • the mast 4 comprises quick tensioning members 13 to attach the second pull ropes 11 to the mast.
  • the pull rope 11 of the yeild member 7 1 goes around:an angle guiding member 14 at the top of the mast to the quick attachment member 13.
  • the pull rope 11 of the yeild member 7 goes around the angle guiding member 14 to the quick attachment member 13.
  • the yeild force of the yeild members 7 1 , 7 2 is adjusted to higher level than the force, which occur while manually tensioning the net. The reason for this is, that the net is tensioned between the masts in a hurry and then it is difficult to estimate such a tensioning force, which does not yet cause yeilding of the yield member.
  • the yeild force of the yeild members 7 1 , 7 2 is adjuste to 400 - 600 N, advantageously 500 N.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

Le dispositif servant à ralentir et/ou à arrêter un véhicule terrestre comporte un filet allongé (1) destiné à retenir un véhicule en mouvement, comportant une corde supérieure (2) et une corde inférieure (3), et conçu pour se dresser en travers du chemin du véhicule qui s'approche. Un premier (41) et un second (42) montants sont placés à des extrémités respectives du filet pour tendre celui-ci, et des éléments de freinage (51, 52) sont montés entre le filet et des points d'appui sensiblement rigides (61, 62) et reliés aux cordes supérieure et inférieure aux deux extrémités dudit filet, ces éléments de freinage étant disposés pour absorber l'énergie cinétique du véhicule. Les montants (41, 42) sont adaptés pour pivoter entre une position sensiblement horizontale dans laquelle le filet est couché sur le sol, et une position sensiblement verticale. Des éléments élastiques (71, 72) reliant la corde supérieure (2) et/ou la corde inférieure (3) aux montants sont sensiblement tendus de manière à tendre le filet dans ses positions verticale et couchée, et sont réglés de sorte qu'ils cèdent lorsqu'ils subissent une force de traction prédéterminée, et qu'ils lâchent prise lorsqu'une limite prédéterminée d'élasticité est franchie, ceci afin de maintenir la tension du filet lorsque d'autres véhicules roulent sur le filet couché ainsi que lorsque le véhicule que l'on veut arrêter s'engage dans le filet, jusqu'au moment où ce dernier dépasse sa limite d'élasticité.
PCT/FI1991/000237 1990-08-07 1991-08-07 Dispositif servant a ralentir et/ou a arreter un vehicule terrestre WO1992002687A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI903910A FI903910A (fi) 1990-08-07 1990-08-07 Stoppningssystem foer landfordon.
FI903910 1990-08-07

Publications (1)

Publication Number Publication Date
WO1992002687A1 true WO1992002687A1 (fr) 1992-02-20

Family

ID=8530894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1991/000237 WO1992002687A1 (fr) 1990-08-07 1991-08-07 Dispositif servant a ralentir et/ou a arreter un vehicule terrestre

Country Status (2)

Country Link
FI (1) FI903910A (fr)
WO (1) WO1992002687A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102661339A (zh) * 2012-05-23 2012-09-12 张沐豪 一种减速拦截方法及系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854201A (en) * 1954-06-11 1958-09-30 All American Eng Co Aircraft barrier
SE429738B (sv) * 1975-08-05 1983-09-26 Aerazur Efa Anordning for resning av net vid en anleggning for uppfangning av flygplan
WO1989010302A1 (fr) * 1988-04-27 1989-11-02 Spanset Ag Dispositif d'arret de vehicules
WO1990005809A1 (fr) * 1988-11-22 1990-05-31 Jarmo Uotila Moyen et filet de ralentissement et/ou d'arret d'un vehicule en deplacement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854201A (en) * 1954-06-11 1958-09-30 All American Eng Co Aircraft barrier
SE429738B (sv) * 1975-08-05 1983-09-26 Aerazur Efa Anordning for resning av net vid en anleggning for uppfangning av flygplan
WO1989010302A1 (fr) * 1988-04-27 1989-11-02 Spanset Ag Dispositif d'arret de vehicules
WO1990005809A1 (fr) * 1988-11-22 1990-05-31 Jarmo Uotila Moyen et filet de ralentissement et/ou d'arret d'un vehicule en deplacement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102661339A (zh) * 2012-05-23 2012-09-12 张沐豪 一种减速拦截方法及系统

Also Published As

Publication number Publication date
FI903910A0 (fi) 1990-08-07
FI903910A (fi) 1992-02-08

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