EP0584049B1 - Dispositif d'urgence déclenchable pour barrière - Google Patents

Dispositif d'urgence déclenchable pour barrière Download PDF

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Publication number
EP0584049B1
EP0584049B1 EP93830311A EP93830311A EP0584049B1 EP 0584049 B1 EP0584049 B1 EP 0584049B1 EP 93830311 A EP93830311 A EP 93830311A EP 93830311 A EP93830311 A EP 93830311A EP 0584049 B1 EP0584049 B1 EP 0584049B1
Authority
EP
European Patent Office
Prior art keywords
barrier
angular
supporting body
bolt
axis
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.)
Expired - Lifetime
Application number
EP93830311A
Other languages
German (de)
English (en)
Other versions
EP0584049A1 (fr
Inventor
Claudio Siliani
Maurizio Biagiotti
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.)
Angiolo Siliani SpA
Original Assignee
Angiolo Siliani SpA
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 Angiolo Siliani SpA filed Critical Angiolo Siliani SpA
Publication of EP0584049A1 publication Critical patent/EP0584049A1/fr
Application granted granted Critical
Publication of EP0584049B1 publication Critical patent/EP0584049B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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 invention relates to a device which is fitted between the barrier of a level crossing - or other equivalent installation - and its operating unit; and which is capable of releasing the barrier at the moment at which it is subjected to a horizontal stress or impact.
  • the device according the invention avoids this inconvenience and allows the restoration without having any spare part.
  • said supporting body and the said terminal element are angularly connected together by a pin capable of sliding in a bush and by a rolling bearing interacting with a curved track with its centre in the axis of the angular restraint.
  • the bolt is guided slidably in the said body and is normally positioned to prevent displacements of the terminal element of the barrier with respect to the supporting body along the said axis of the angular restraint.
  • 1 indicates a turret forming an operating unit, on which the level crossing barrier indicated in a general way by 3 is ultimately pivoted.
  • 5 indicates in a general way the horizontal pivot axis for the operations of raising and lowering the barrier.
  • the device described herein, indicated in a general way by 7, is designed to permit the release of the barrier 3 from a barrier supporting body 9 pivoted at 5 on the turret 1; release must be provided when the barrier receives a thrust or impact in a horizontal direction shown by one of the arrows f0 in Fig. 2.
  • the device 7 comprises the said body 9, which is extended to form arms 9A, 9B and to form a slide housing 9C for a bolt 10 which can slide in the direction of the double-ended arrow f10.
  • the bolt may be guided in particular by means of a key 12 engaged with the body 9; the bolt 10 can also be displaced in the direction of the double-ended arrow f10 by a peg 14 carried by a slide 16 which can slide in the same direction as the arrow f10 on the body 9.
  • This slide 16 is acted on by elastic means 18 such as Belleville washers or similar, which bear on a block 19 whose position is adjustable by an adjusting screw 19A.
  • the slide 16 has a projecting symmetrical shaped profile 20 for the purposes stated below.
  • the barrier 3 is integral with a terminal element 22 which - in vertical section - is substantially in the shape of a fork, with arms 22A and 22B; in the normal operating position, the arms 22A and 22B of the terminal element 22 of the barrier 3 are below and in contact with the arm 9A and the lower surface of the arm 9B of the support 9.
  • the arm 22B has a symmetrical profile 24 capable of interacting with the profile 20.
  • the supporting body 9 and the terminal element 22 are held together angularly in a vertical axis A-A in the way stated below.
  • a pin 26 provided in the upper part is engaged with the upper arm 9A of the supporting body 9; the pin 26 is housed slidably and rotatably in a bush 28 carried by the arm 22A of the terminal element 22.
  • a second angular restraint capable of withstanding the cantilever thrust of the projecting barrier 3, consists of a bearing 30 projecting downwards from the body 9, and housed in curved track 32 formed in the element 22, along which track the bearing can roll at the moment of angular displacement of the barrier 3 and of the terminal element 22 about the axis A-A; the bearing, by its pressure on the external surface of the track, opposes the effect of the cantilever load of the barrier 3.
  • the bolt 10, which slides in the housing 9C of the supporting body 9, can interact with the upper arm 22A of the terminal element 22 integral with the barrier 3, as seen in Fig.
  • the bolt 10 In normal conditions, in the absence of a thrust, the bolt 10 interacts with the arm 22A of the terminal element 22 and the whole assembly remains in the condition of normal operation of the level crossing barrier in the lowered position.
  • a lateral thrust in the direction of f0 causes an initial rotation of the barrier 3 and of its terminal element 22 about the axis A-A of the pin 26 and of the members 30, 32
  • the shaped profile 24 with a V-shaped indentation applies a thrust to the corresponding shaped profile 20 in the direction opposite to that of the arrow f16 and against the elastic action of the springs 18; this causes a withdrawal of the slide 16 in the direction opposite to that of the arrow f16 and, through the peg 14, the corresponding sliding of the bolt 10 to a point at which the interaction of this bolt 10 with the arm 22A of the terminal element 22 is interrupted.
  • a compression spring 40 is provided and is wound around a rod 42 which is slidably guided in the body 22 and, under the pressure of the spring 40, bears on the lower end of the pin 26. This causes a vertical sliding of the assembly 22, 3 such that the arm 22A is released from the pin 26 and the bearing 30 is released from the track 32 of the arm 22B of the terminal element 22, leading to the condition shown in Fig.
  • the barrier 3 can fall or be displaced and removed in any way from the body 9, as indicated in broken lines by 3X, 22X.
  • the barrier 3 With the device 7 as described, it is therefore possible for the barrier 3 to be rapidly and spontaneously released as a consequence of any thrust in the direction of one of the arrows f0 on the barrier 3 sufficient to cause a slight rotation about the vertical axis A-A, as is required from the device in question.
  • the body 9 also has formed in it a catch with a peg 46 pressed elastically downwards by a spring 48 against the slide 16 below; the slide has on its upper surface, against which the peg 46 can press, a socket 50 which the peg 46 can enter when the slide 16 has been displaced - as described previously - by the interaction of the shaped profiles 24 and 20 under the effect of the initial rotation of the barrier 3 in the horizontal direction about the axis A-A under the effect of a thrust or impact in the direction of one of the arrows f0.
  • the socket 50 With the withdrawal of the slide 16 caused in this way, the socket 50 is brought next to the peg 46 which enters it with a spring action and locks the slide 16 in the withdrawn position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Catching Or Destruction (AREA)
  • Measuring Volume Flow (AREA)
  • Bridges Or Land Bridges (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Sliding-Contact Bearings (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Centrifugal Separators (AREA)

Claims (8)

  1. Dispositif d'urgence déclenchable (7) permettant à une barrière de passage à niveau (3) de céder en cas de contrainte ou d'impact horizontal, et applications équivalentes, avec un élément terminal (22) de la barrière (3) fixé sur un corps de support (9) par un élément de guidage angulaire forcé comprenant deux moyens de coercition angulaire coaxiaux séparés (26; 30, 32) et son déplacement axial par rapport à l'élément de guidage forcé et son déclenchement étant empêché jusqu'au moment où la barrière (3) commence à céder angulairement sur l'axe (A-A) de l'élément de guidage angulaire forcé, la barrière étant déclenchée ou libérée axialement à partir des deux moyens de coercition angulaire et par conséquent à partir du corps de support (9), caractérisé en ce que le corps de support (9) et l'élément terminal (22) sont raccordés angulairement ensemble par une goupille (26) pouvant coulisser dans un manchon (28) et par un palier de roulement (30) interagissant avec une voie courbe (32) dont le centre est dans l'axe (A-A) de l'élément de guidage angulaire forcé ; et en ce qu'un boulon (10) est guidé de façon coulissante dans le corps (9) et est normalement positionné pour empêcher les déplacements de l'élément terminal (22) de la barrière (3) par rapport au corps de support (9) le long de l'axe (A-A) de l'élément de guidage angulaire forcé.
  2. Dispositif selon la revendication 1, caractérisé en ce qu'il comprend, sur l'élément terminal (22) de la barrière (3), qui est déplaçable angulairement autour de l'axe de l'élément de guidage angulaire forcé, un premier profilé (24) et en combinaison avec le boulon (10), un second profilé (20) correspondant à et interagissant avec le premier profilé ; les premier et second profilés (24, 20) pouvant faire coulisser - lors du déplacement angulaire initial de la barrière (3) - le boulon (10) et par conséquent libérer ou déclencher la barrière (3) à partir du corps de support (9).
  3. Dispositif selon la revendication 2, caractérisé en ce que le second profilé (20) est constitué par une glissière (16) pouvant coulisser dans le corps de support (9) et est raccordée au boulon (10) par une goupille (14).
  4. Dispositif selon la revendication 2 ou 3, caractérisé en ce que l'un des profilés (24, 20) est monté sur ressorts pour définir la position normale de la barrière et pour donner une charge prédéterminée en opposition au déplacement angulaire initial de la barrière (3).
  5. Dispositif selon la revendication 2 ou 3 ou 4, caractérisé en ce que les profilés (24, 20) sont symétriques de façon à agir après des poussées ou des impacts dans les directions opposées sur la barrière.
  6. Dispositif selon au moins l'une des revendications 1 à 5, caractérisé en ce que la goupille (26) est solidaire d'un bras (9A) du corps de support (9) et elle est dirigée vers le bas et l'autre moyen de coercition angulaire est un palier de roulement (30) faisant saillie vers le bas à partir du corps de support (9) et logé dans une voie courbe (32) dont le centre se situe dans l'axe de la goupille (26), formée dans l'élément terminal (22) de la barrière (3).
  7. Dispositif selon au moins l'une des revendications précédentes, caractérisé en ce qu'une cheville de retenue élastique (46) qui peut être rendue inopérante de l'extérieur, interagit avec la glissière (16) qui déplace le boulon (10) ou avec le boulon (10) lui-même.
  8. Dispositif selon la revendication 1, caractérisé en ce qu'il comprend des moyens élastiques (40) pouvant agir dans l'axe (A-A) de l'élément de guidage angulaire forcé pour faciliter le déclenchement ou la libération.
EP93830311A 1992-08-12 1993-07-20 Dispositif d'urgence déclenchable pour barrière Expired - Lifetime EP0584049B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI920168A IT1258183B (it) 1992-08-12 1992-08-12 Congegno di tallonamento, per il cedimento di un'asta di passaggio a livello, in caso di urto o sollecitazione orizzontale
ITFI920168 1992-08-12

Publications (2)

Publication Number Publication Date
EP0584049A1 EP0584049A1 (fr) 1994-02-23
EP0584049B1 true EP0584049B1 (fr) 1996-12-04

Family

ID=11350201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93830311A Expired - Lifetime EP0584049B1 (fr) 1992-08-12 1993-07-20 Dispositif d'urgence déclenchable pour barrière

Country Status (4)

Country Link
EP (1) EP0584049B1 (fr)
AT (1) ATE145953T1 (fr)
DE (1) DE69306337T2 (fr)
IT (1) IT1258183B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2154136B1 (es) * 1998-03-30 2002-01-16 Perez Angel Doblado Barrera de control de vehiculos con dispositivos limitadores de esfuerzos y reglaje de mastil.
FR2854908B1 (fr) * 2003-05-13 2005-08-05 Ero Ind Barriere pour le controle d'acces de vehicules a dispositif de retour automatise, apres degondage
US8161681B2 (en) * 2008-06-30 2012-04-24 Treihaft Michael T Releasable arm assembly for a swing gate

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1755548A1 (de) * 1968-05-21 1971-09-30 Railroad Accessories Corp Verkehrsregelungsvorrichtung
DE7045343U (de) * 1970-12-08 1971-04-01 Siemens Ag Schwenkbare Schrankenbaumlagerung
US4232484A (en) * 1977-12-21 1980-11-11 Zuhlke Engineering Ag Apparatus for moving toll bars or the like
US4219969A (en) * 1978-09-14 1980-09-02 Safetran Systems Corporation Pivoting breakaway coupling system
US4364200A (en) * 1980-12-29 1982-12-21 Kettering Medical Center Automatically operable automotive vehicle gate apparatus provided with self protection and automotive protection
US4897960A (en) * 1989-01-03 1990-02-06 General Signals, Inc. Railroad crossing gate

Also Published As

Publication number Publication date
ITFI920168A0 (it) 1992-08-12
ATE145953T1 (de) 1996-12-15
EP0584049A1 (fr) 1994-02-23
ITFI920168A1 (it) 1994-02-12
DE69306337T2 (de) 1997-04-30
IT1258183B (it) 1996-02-20
DE69306337D1 (de) 1997-01-16

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