EP1394325B1 - Lift-off barrier for vehicle access control - Google Patents

Lift-off barrier for vehicle access control Download PDF

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Publication number
EP1394325B1
EP1394325B1 EP03291932A EP03291932A EP1394325B1 EP 1394325 B1 EP1394325 B1 EP 1394325B1 EP 03291932 A EP03291932 A EP 03291932A EP 03291932 A EP03291932 A EP 03291932A EP 1394325 B1 EP1394325 B1 EP 1394325B1
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EP
European Patent Office
Prior art keywords
head
arm
support
rotation
barrier
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
EP03291932A
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German (de)
French (fr)
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EP1394325A1 (en
Inventor
Claude Gairoard
Georges Matte
Thierry Coyere
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.)
Ero Industrie SA
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Ero Industrie SA
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Publication date
Priority claimed from FR0210173A external-priority patent/FR2843410B1/en
Priority claimed from FR0305741A external-priority patent/FR2854908B1/en
Application filed by Ero Industrie SA filed Critical Ero Industrie SA
Publication of EP1394325A1 publication Critical patent/EP1394325A1/en
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Publication of EP1394325B1 publication Critical patent/EP1394325B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/02—Guards or obstacles for preventing access to the route
    • 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 an automatic lifting barrier for the access control of vehicles, in particular on toll roads, at the entrance and exit of motorways, tunnels, bridges, etc.
  • the arms In horizontal position, the arms, in horizontal position, are indeed exposed to the shocks of vehicles that do not stop in time and hit them.
  • various unhinging systems are used to release the arm by allowing its end fixed on the mechanical drive head. to dissociate itself from its support beyond a certain impact force.
  • FR-A-2 602 806 or FR-A-2,759,399 such barriers are described and among the known stripping systems are those of FR-A-2 602 806 , FR-A-2,759,399 , FR-A-2,800,759 .
  • a liftable barrier comprising a mechanical head fixed on a support and driving an arm in rotation in a vertical plane, a release device allowing the arm to retract in case of collision by a vehicle or equivalent, the disengaging device comprising a means of connection between the support and the head adapted to allow the pivoting thereof (a priori in a horizontal or substantially horizontal plane) relative to said support, to a disengaged position.
  • a problem posed is to provide a dismounting device providing security vis-à-vis vehicles and that is quite simple.
  • a solution to this problem is a barrier characterized in that the stripping device comprises an adjustable clamping means which establishes a mechanical connection with friction between the head and its support with a rotational braking effect of this head when it s 'escamote and who is able to adjust the threshold of the force of impact beyond which this retraction takes place.
  • the rotational friction force of the head with respect to the foot may be substantially constant.
  • the head of the barrier is imposed in the invention , a force that decreases as the barrier is rotated by the vehicle.
  • the clamping means comprises a plate whose at least one surface has a low coefficient of friction and is arranged against a platen secured to either the head or the support, the plate then being secured to either the support or the head, and a compression device able to maintain a given tightening between the plate and said plate.
  • the pivoting retaining force of the head can thus be in particular a function of the clamping force of compression nuts, via washers.
  • a corollary problem concerns the control of the movement of the arm.
  • Another problem posed is to return the mechanical head of the barrier in the normal operating position, after unhinging has rotated, using means relatively simple, with a controlled cost, without requiring delicate human intervention involving a particular training of an operator, nor a complex winding and while respecting the standards of road safety.
  • this finger defines an elastic blade preferably having a width of between about 10 and 16 mm.
  • the barrier of the invention comprises a motor for rotating the arm in the vertical plane, in the normal operating position, and that the motion transformation mechanism is driven by this motor, by via a connecting rod printing reciprocating rectilinear movement to said pushing means, preferably to the finger (the rod then being advantageously engaged on a shaft to which the arm is connected for its rotational drive in the vertical plane).
  • the same motor and the same movement transformation mechanism can be used both to maneuver the arm in normal operation and for the return of the head after disengagement, thus favoring the adaptation of the solution of the invention to barriers existing, while limiting the number of parts to be added to obtain the return function according to the invention.
  • Yet another characteristic advises, to automate the return of the barrier in the normal operating position (or even allow remote control of this return), to use in particular the (s) sensor (s) already planned (s) position angular position of the head relative to the support and / or the arm and the associated electronics in such a manner that a detent rotation detection of the head causes the oscillatory control of the arm during the return movement of the head after disengagement and, preferably, that at the end of stroke back of the finger, while the head returns to the normal operating position, these means control a greater oscillation amplitude of the arm, to clear the finger of the last stop of the series, then allowing the free rotation of the arm in its normal plane of operation.
  • the mechanical head In normal operating position, as on Figures 1 to 3 , the mechanical head is designed to move the arm 3 from the horizontal position as shown in FIG. figure 1 in the vertical position along the plane VV ', and vice versa and this while respecting certain parameters.
  • the arm 3 is kept at rest, in the vertical position by a spring 15.
  • the torque motor 8 When an order to lower the arm to the horizontal position is given the torque motor 8 is energized and its output shaft 8a rotates a crankpin 12 which itself drives in a circular motion a rolling bearing or roller 13 which moves back and forth in a slot 16 of the connecting rod; by construction, a rotation of the pinion of 270 ° for example causes a rotation of the connecting rod of 90 °.
  • the bearing 13 presses against a stop 19 made of high-density rubber which serves to dampen shocks and vibrations.
  • the shaft 9 rotates on two bearings 10 mounted in opposition on the support part 7.
  • the energy accumulated by the spring serves either to relieve the engine 8 in the raising movement of the arm, or raising the arm 3 to the vertical position, in the disengaged state of the head 1. This state is reached when there has been a power failure of the engine or in the solution below.
  • the opposite end of the shaft 9 receives a support 6 for the arm 3.
  • the support 6 can be fixed on the shaft 9 by two pins and at its other end the shaft 9 can be associated with a position sensor 17 angular which allows to control at any time the angular position of the arm.
  • the device for disengaging the barrier comprises a means 4 for securing between the support 20 and the head 1 able to allow the movement thereof in the horizontal plane HH 'relative to the support 20.
  • the securing means 4 is here constituted a single screw or equivalent 4 which extends along the vertical axis XX 'and maintains a part 7 of the head, while allowing the rotation of this part relative to the support, about said axis XX'.
  • the part 7 can serve as a support for all the mechanical elements of the head against the support 20, as shown in FIG. figure 2 .
  • this support 20 may be that of the boot foot 2 when the head 1 is mounted therein: in this case the release device may be disposed between the lower sole 21 of the foot box 2 and the support 20 'fixed on the ground and on which are then fixed both the head 1 and the foot of the barrier, the latter then pivoting with the head 1.
  • the pivoting of the head 1 relative to the support 20 this also relates to the solution of the pivoting of the entire head and foot relative to the support 20 'anchored to the ground.
  • the disengaging device comprises a means for clamping the mechanical head 1 on the base 2 adapted to adjust the braking and rotational damping of the head 1.
  • This clamping means comprises a sliding plate 5 (at least one surface plane is of low coefficient of friction and arranged against a flat plate 7 1 ) and a compression device 25 able to maintain a given tightening between the patina 7 1 and the plate 5.
  • the platen 7 1 may be a part integral with the head 1, as shown in FIG. figure 2 either of the support 20 and vice versa for the plate 5.
  • the mechanical head 1 is thus clamped through the screw 4 in a hole located here in the center of the support 20 which is the upper plate of the box foot 2.
  • the round plate 5 by example polyethylene
  • the round plate 5 fixed in the example described on the support 20, facilitates the sliding in rotation of the head 1 vis-à-vis the support foot.
  • the compression device 25 may consist of two spring washers 25 1 , immobilized and compressed by a lock nut 25 2 screwed onto the screw 4, with a suitable clamping force. As soon as a horizontal force is applied to the arm 3, the assembly of the mechanical head 1 and of the arm 3 then rotates along this screw axis 4; the clamping force of the latter by the compression device 25 allows the slowdown of the rotational movement.
  • the plate 7 may have an asymmetrical U-shape consisting of a single piece whose large branch 7 3 of the U receives the drive motor 8 of the arm, the small branch 7 2 receives in an open slot 24 a bearing support of the drive shaft 9 of the arm 3 and the web 7 1 of the U receives the securing means of the unhinging device, such as through a square hole to position the screw-axis 4 shouldered.
  • the disengagement rotation is limited to a quarter of a turn by a mechanical stop secured to the plate 7 and sliding in a long slot 22 of the plate 5 (which may have the shape of the figure 2 or from figure 4 ).
  • the pivoting arm releases the passage A ( figure 1 ): at the end of rotation the arm can optionally continue to operate freely without causing any problems since it is always integral with the head 1 and is parallel to the access path A along the curb.
  • a sensor 18 of angular position around the vertical axis XX 'of the head relative to the support 2, 20, fixed to the plate 7 and rotating in the slot 22 acts on the drive motor 8 of the arm 3 from the beginning turn of rotation of the head 1 (for example 5 °) and the arm 3 then rises vertically under the impulse of the motor 8 at low speed.
  • the switch 18 may also signal the disengaged position at the monitoring station.
  • the contactor 18 which thus controls the rotation of unstacking / return of the plate 7 relative to the foot 2 (support 20) and the position sensor 17 which gives the direction of rotation of the shaft 9 thus participate in the electronic management of the parameters. of movement of the arm and the head, both in normal operation and disengaged situation.
  • Such a rod / ratchet / rack assembly defines, advantageously with the motor 8 and the associated control logic (in particular the sensors 17, 18), most of the return means which will allow to recall the head 1, and in particular the arm 3 in the normal operating position, after disengagement, taking advantage of the possibility of then oscillate the arm 3 by a few degrees around an established position, which position is typically its vertical or substantially vertical safety position, as on the figure 4 .
  • the motor 8 and the associated geared motor device are used for the operation of the arm 3 both during its normal operation and its oscillatory movement thus allowing the head 1 to return to the normal operating position of the arm , we will be able both to limit the number of parts added to ensure this automatic return function, to use only one motor and a single mechanism for the two types of movement of the arm 3 and thus allow to adapt on existing barriers the automatic return device according to the invention, without significant modification.
  • the arm of a moment which, taking into account the actual dimension of the barrier, substantially compensates for the torque is arranged with respect to the pivot axis 3a. to overcome because of braking disengagement (typically 5 m.kg).
  • the sensors 17 and 18 are connected to the electronic control unit 33 which controls the operation of the arm 3, via the motor 8, as a function of the angular position of the head 1 (normal operating position or more or less disengaged).
  • the electronic control unit 33 provided with a programmable microprocessor and a memory unit thus defines two modes of angular movement of the arm 3: oscillatory operation of a few degrees around the vertical in disengaged mode or rotation between vertical and horizontal in "normal" mode.
  • the head 1 rotates at an angle about the axis XX 'from its initial position (normal operation).
  • the electronic control unit 33 is then informed by the sensor 18 that a certain angle of rotation of disengagement has been applied to the head 1 and that the movement of the arm 3 must be modified.
  • the arm 3 then rises in a vertical position.
  • the finger 30 Since the head 1 has rotated, the finger 30 also meshes with one of the abutments (teeth) 31.
  • the electronic control unit 33 then activates the motor 8 so that in connection with the sensor 17, the arm oscillates about 5 to 10 ° with respect to the vertical, around 3a ( figures 6 and 7 ).
  • the arm 3 begins its first oscillation.
  • the finger 30 then moves under the effect of the rod 11 and applies a substantially horizontal force on one of the stops of the toothing 31 which can be located radially at about 10 to 20 cm from the axis XX '.
  • the reaction of the tooth generates a torque which causes the rotation of the head 1 tending to bring it back to its initial angular position.
  • the angle of rotation step by step of the head will advance tooth by tooth or more, this being a function of the tolerated movement of the arm relative to the vertical and meshing dimensions between the finger and the teeth .
  • the finger 30 is then advantageously in front of the part 31a without toothing, thus allowing the arm 3 to regain its possibility of free movement between its horizontal and vertical positions of normal operation ( figure 8 ).
  • the senor 18 has advantageously transmitted end of travel information of the finger 30 to the control means 33, so that via the microprocessor a control command of the motor 8 has been generated so that at the end of this stroke a greater oscillation amplitude is applied to the arm 3 (for example up to 15 °) to release the finger from the last tooth and allow the free rotation of the arm (the finger then being at a sufficient distance from the last tooth).
  • a control command of the motor 8 has been generated so that at the end of this stroke a greater oscillation amplitude is applied to the arm 3 (for example up to 15 °) to release the finger from the last tooth and allow the free rotation of the arm (the finger then being at a sufficient distance from the last tooth).
  • an end-of-stroke return means such as an electromagnet 39 (see figure 4 ) or a spring 41 ( figure 10 ) to separate between them the finger 30 and the series of stops 31 when the head 1 has returned to its normal angular position of operation.
  • the bar 41 which carries the rack 31 could be made with a double rack : a rack on the upper edge and a rack on the lower edge, for mounting left or right.
  • the electronic control unit 33 controls the motor 8 so that the arm can then again normally move about 90 ° between its horizontal positions of prohibition and vertical free movement.
  • the finger 30 is an elastic blade and the teeth of the rack have a steeper slope on the side of the support of the blade than the other.
  • the finger, marked 43, driven by the rod is a concave comma-shaped ratchet towards the toothless end of the rack and which can mesh with a rack 45 whose teeth have the same slope on both sides.
  • a "double rack” is no longer necessary.
  • wear and noise are lower compared to the blade.
  • the return spring 41, mounted at the rear of the pawl, is a safety end of stroke. The operation of this ratchet assembly 43 / rack 45 corresponds to that of Figures 6 to 8 .
  • the pivoting of the mechanical assembly and arm relative to the vertical axis the support of the latter allows the arm to release the passage being found parallel to the floor without having been damaged and, remaining secured to its mechanical head and therefore in a controlled position, can not hit other equipment around the barrier.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Transmission Devices (AREA)
  • Superstructure Of Vehicle (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Control And Safety Of Cranes (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

The vehicular access control barrier (3) is mounted to rotate in a vertical plane (VV). A safety mechanism allows the head (1) which carries the barrier to rotate in a horizontal plane (HH), against an adjustable frictional force. The access control barrier for vehicle includes a mechanical head (1) mounted on a support (20), carrying the barrier itself (3) mounted to rotate in a vertical plane (VV). A safety system allows the arm to be lifted again in the event of collision with a vehicle. A further mechanism allows the head (1) to rotate in a horizontal plane (HH). A frictional link between the head (1) and the support (20) allows rotation in the horizontal plane in the event of a collision, with an adjustment provided for the degree of force necessary to initiate this rotation. This adjustment is provided by two surfaces which have a low coefficient of friction between them, with a compression system pressing the surfaces together in order to provide the necessary friction to oppose rotation.

Description

La présente invention a pour objet une barrière levante automatique pour le contrôle d'accès des véhicules, en particulier sur les voies des aires de péages, à l'entrée et sortie des autoroutes, tunnels, ponts etc....The present invention relates to an automatic lifting barrier for the access control of vehicles, in particular on toll roads, at the entrance and exit of motorways, tunnels, bridges, etc.

Pour satisfaire aux normes de sécurité, de telles barrières doivent être équipées d'un système dit de « dégondage », permettant au bras de la barrière de s'escamoter en cas de heurt par un véhicule et donc de limiter l'impact et les conséquences du choc.To meet safety standards, such barriers must be equipped with a system called "disengage", allowing the arm of the barrier to retract in case of collision by a vehicle and thus to limit the impact and consequences shock.

En cours de fonctionnement, les bras, en position horizontale, sont en effet exposés aux chocs des véhicules qui ne s'arrêtent pas à temps et viennent les heurter. Pour favoriser la sécurité des automobilistes et de leurs véhicules, et éviter la détérioration du bras, de son support et de sa tête mécanique, différents systèmes de dégondage sont utilisés pour libérer le bras en permettant à son extrémité fixée sur la tête mécanique d'entraînement de se désolidariser de son support au-delà d'une certaine force d'impact.During operation, the arms, in horizontal position, are indeed exposed to the shocks of vehicles that do not stop in time and hit them. To promote the safety of motorists and their vehicles, and to avoid the deterioration of the arm, its support and its mechanical head, various unhinging systems are used to release the arm by allowing its end fixed on the mechanical drive head. to dissociate itself from its support beyond a certain impact force.

Dans FR-A-2 602 806 ou FR-A-2 759 399 , on décrit de telles barrières et parmi les systèmes de dégondage connus, on peut citer ceux de FR-A-2 602 806 , FR-A-2 759 399 , FR-A-2 800 759 .In FR-A-2 602 806 or FR-A-2,759,399 such barriers are described and among the known stripping systems are those of FR-A-2 602 806 , FR-A-2,759,399 , FR-A-2,800,759 .

On peut ainsi considérer comme déjà connu une barrière relevable comprenant une tête mécanique fixée sur un support et entraînant un bras en rotation dans un plan vertical, un dispositif de dégondage permettant au bras de s'escamoter en cas de heurt par un véhicule ou équivalent, le dispositif de dégondage comportant un moyen de solidarisation entre le support et la tête apte à autoriser le pivotement de celle-ci (à priori dans un plan horizontal ou sensiblement horizontal) par rapport audit support, vers une position dégondée.It can thus be considered as already known a liftable barrier comprising a mechanical head fixed on a support and driving an arm in rotation in a vertical plane, a release device allowing the arm to retract in case of collision by a vehicle or equivalent, the disengaging device comprising a means of connection between the support and the head adapted to allow the pivoting thereof (a priori in a horizontal or substantially horizontal plane) relative to said support, to a disengaged position.

Dans US 2 352 310 , il est par ailleurs prévu un dégondage de la barrière en cas de heurt par un véhicule, avec rotation de la tête dans un plan horizontal. Toutefois, ce document prévoit, avec un ressort et une roulette qui coulisse sur des pans inclinés, un système dans lequel plus la tête pivote, plus la force qui s'oppose à son pivotement augmente.In US 2,352,310 , it is also provided for a disengagement of the barrier in case of collision by a vehicle, with rotation of the head in a horizontal plane. However, this document provides, with a spring and a caster which slides on inclined faces, a system in which the more the head pivots, the more the force which opposes its pivoting increases.

Ainsi, plus le véhicule pousse la barrière, plus la force de rappel du ressort augmente, ce qui est dangereux.Thus, the more the vehicle pushes the barrier, the more the return force of the spring increases, which is dangerous.

Dans ce contexte, un problème posé est de réaliser un dispositif de dégondage assurant une sécurité vis-à-vis des véhicules et qui soit assez simple.In this context, a problem posed is to provide a dismounting device providing security vis-à-vis vehicles and that is quite simple.

Une solution à ce problème est une barrière caractérisée en ce que le dispositif de dégondage comporte un moyen de bridage réglable qui établit une liaison mécanique avec frottement entre la tête et son support avec donc un effet de freinage en rotation de cette tête lorsqu'elle s'escamote et qui est apte à régler le seuil de la force d'impact au-delà duquel cet escamotage s'opère.A solution to this problem is a barrier characterized in that the stripping device comprises an adjustable clamping means which establishes a mechanical connection with friction between the head and its support with a rotational braking effect of this head when it s 'escamote and who is able to adjust the threshold of the force of impact beyond which this retraction takes place.

Ainsi, la force de frottement en rotation de la tête vis à vis du pied peut être sensiblement constante. Au demeurant, puisqu'en cas de choc le véhicule avance et se déplace le long de la barrière lorsqu'il l'a heurtée et qu'il l'entraîne en rotation, la tête de la barrière se voit imposer, dans l'invention, un effort qui va en diminuant au fur et à mesure que la barrière est poussée en rotation par le véhicule.Thus, the rotational friction force of the head with respect to the foot may be substantially constant. Moreover, since in case of shock the vehicle moves forward and moves along the barrier when it is struck and that it drives in rotation, the head of the barrier is imposed in the invention , a force that decreases as the barrier is rotated by the vehicle.

Pour éviter trop de pièces additionnelles ou de systèmes mécaniques complexes, tout en permettant donc au bras de s'escamoter en cas de heurt par le véhicule, il est par ailleurs conseillé que le moyen de bridage comporte une plaque dont au moins une surface est de faible coefficient de frottement et est disposée contre une platine solidaire soit de la tête soit du support, la plaque étant alors solidaire soit du support soit de la tête, et un dispositif de compression apte à maintenir un serrage donné entre la platine et ladite plaque.To avoid too many additional parts or complex mechanical systems, while allowing the arm to retract in case of collision by the vehicle, it is also recommended that the clamping means comprises a plate whose at least one surface has a low coefficient of friction and is arranged against a platen secured to either the head or the support, the plate then being secured to either the support or the head, and a compression device able to maintain a given tightening between the plate and said plate.

La force de retenue en pivotement de la tête peut être ainsi en particulier fonction de la force de serrage d'écrous de compression, via des rondelles.The pivoting retaining force of the head can thus be in particular a function of the clamping force of compression nuts, via washers.

Un problème corollaire concerne le contrôle du mouvement du bras.A corollary problem concerns the control of the movement of the arm.

A cet égard, il est proposé que le bras soit entraîné en rotation par un moteur, par l'intermédiaire d'un arbre, la barrière comprenant en outre:

  • un capteur de position du bras par l'intermédiaire duquel le sens de rotation de l'arbre est fourni, et
  • un contacteur par l'intermédiaire duquel est contrôlée la rotation de la platine par rapport au support, le contacteur coupant de préférence l'alimentation du moteur d'entraînement du bras, dès le début de la rotation de ladite tête vers sa position dégondée, le bras remontant alors à la verticale sous l'impulsion d'un ressort de rappel.
In this regard, it is proposed that the arm is rotated by a motor, via a shaft, the barrier further comprising:
  • a position sensor of the arm through which the direction of rotation of the shaft is provided, and
  • a contactor through which is controlled the rotation of the plate relative to the support, the contactor preferably cutting the supply of the drive motor of the arm, from the beginning of the rotation of said head to its disengaged position, the arm then rising vertically under the impulse of a return spring.

Un autre problème posé (que l'on pourrait dissocier de ce qui précède) est de réaliser un retour de la tête mécanique de la barrière en position normale de fonctionnement, après qu'un dégondage l'ait faite pivoter, ceci en utilisant des moyens relativement simples, avec un coût maîtrisé, sans nécessiter d'intervention humaine délicate impliquant une formation particulière d'un opérateur, ni un remontage complexe et tout en respectant les normes de sécurité routière.Another problem posed (which one could dissociate from the above) is to return the mechanical head of the barrier in the normal operating position, after unhinging has rotated, using means relatively simple, with a controlled cost, without requiring delicate human intervention involving a particular training of an operator, nor a complex winding and while respecting the standards of road safety.

Une solution à ce problème est exprimée dans les revendications jointes 11 à 16.A solution to this problem is expressed in appended claims 11 to 16.

Dans cette solution, les moyens de retour de la tête mécanique en position normale de fonctionnement du bras, après un dégondage, comprennent:

  • des moyens de commande du bras en position dégondée de la barrière, pour limiter l'angle de rotation de ce bras par rapport à celui suivant lequel il opère en position normale de fonctionnement et lui faire alors effectuer des oscillations autour d'une position de référence, de préférence verticale,
  • et des moyens de poussée pour entraîner en rotation la tête par rapport au support dans ledit plan horizontal, ces moyens de poussée qui comprennent un doigt et une série de butées d'appui disposées sensiblement horizontalement étant liés, l'un, au mouvement d'oscillation du bras, l'autre au support, pour que lors des rotations dans un sens du bras, le doigt et l'une au moins des butées d'appui butent l'un contre l'autre sous l'effet du mouvement rectiligne imposé par le mécanisme.
In this solution, the return means of the mechanical head in the normal operating position of the arm, after unhinging, comprise:
  • control means of the arm in the disengaged position of the barrier, for limiting the angle of rotation of this arm relative to the one in which it operates in the normal operating position and then causing it to oscillate around a reference position preferably vertical,
  • and pushing means for rotating the head relative to the support in said horizontal plane, said pushing means comprising a finger and a series of support stops arranged substantially horizontally being connected, one, to the movement of oscillation of the arm, the other support, so that during rotations in one direction of the arm, the finger and at least one of the abutments abut abut against each other under the effect of the rectilinear motion imposed by the mechanism.

Un mécanisme de transformation de mouvement, lié au bras et adapté pour transformer un mouvement circulaire d'oscillation de ce bras autour de son axe en un mouvement rectiligne alternatif sensiblement horizontal, est en outre alors avantageusement utilisé, ce mécanisme comprenant une bielle montée sur l'axe de rotation du bras. Dans ce cas, toujours dans le but de prévoir des moyens relativement simples et peu onéreux fondés sur un système mécanique éprouvé, on conseille:

  • que le doigt et la série de butée d'appui définissent respectivement un cliquet et une crémaillère,
  • et que le mécanisme de transformation de mouvement imprime le mouvement rectiligne alternatif aux dits moyens de poussée, de préférence au doigt.
A movement transformation mechanism, linked to the arm and adapted to transform a circular oscillation movement of this arm about its axis into a substantially horizontal rectilinear reciprocating movement, is also advantageously used, this mechanism comprising a connecting rod mounted on the arm. axis of rotation of the arm. In this case, always in order to provide relatively simple and inexpensive means based on a proven mechanical system, we advise:
  • that the finger and the series of bearing abutment respectively define a pawl and a rack,
  • and that the motion transformation mechanism imparts rectilinear reciprocating motion to said thrust means, preferably to the finger.

Pour la fiabilité dans le temps du contact entre le doigt et la série de butée, on conseille en outre que ce doigt définisse une lame élastique présentant de préférence une largeur comprise entre environ 10 et 16 mm.For the reliability in time of the contact between the finger and the stop series, it is further advised that this finger defines an elastic blade preferably having a width of between about 10 and 16 mm.

Selon une autre caractéristique, on conseille que la barrière de l'invention comprenne un moteur d'entraînement en rotation du bras dans le plan vertical, en position normale de fonctionnement, et que le mécanisme de transformation de mouvement soit mû par ce moteur, par l'intermédiaire d'une bielle imprimant le mouvement rectiligne alternatif aux dits moyens de poussée, de préférence au doigt (la bielle étant alors avantageusement en prise sur un arbre auquel est lié le bras pour son entraînement en rotation dans le plan vertical).According to another characteristic, it is recommended that the barrier of the invention comprises a motor for rotating the arm in the vertical plane, in the normal operating position, and that the motion transformation mechanism is driven by this motor, by via a connecting rod printing reciprocating rectilinear movement to said pushing means, preferably to the finger (the rod then being advantageously engaged on a shaft to which the arm is connected for its rotational drive in the vertical plane).

Ainsi on peut utiliser le même moteur et le même mécanisme de transformation de mouvement à la fois pour manoeuvrer le bras en fonctionnement normal et pour le retour de la tête après dégondage, favorisant ainsi l'adaptation de la solution de l'invention à des barrières existantes, tout en limitant le nombre de pièces devant être ajoutées pour obtenir la fonction de retour conforme à l'invention.Thus, the same motor and the same movement transformation mechanism can be used both to maneuver the arm in normal operation and for the return of the head after disengagement, thus favoring the adaptation of the solution of the invention to barriers existing, while limiting the number of parts to be added to obtain the return function according to the invention.

Encore une autre caractéristique conseille, pour automatiser le retour de la barrière en position normale de fonctionnement (voire permettre une commande à distance de ce retour), d'utiliser en particulier le(s) capteur(s) déjà prévu(s) de position angulaire de la tête par rapport au support et/ou du bras et l'électronique associée d'une manière telle qu'une détection de rotation de dégondage de la tête provoque la commande oscillatoire du bras pendant le mouvement de retour de la tête après dégondage et, de préférence, qu'en fin de course retour du doigt, alors que la tête retourne en position normale de fonctionnement, ces moyens commandent une amplitude d'oscillation plus importante du bras, pour dégager le doigt de la dernière butée de la série, autorisant alors la libre rotation du bras dans son plan normal de fonctionnement.Yet another characteristic advises, to automate the return of the barrier in the normal operating position (or even allow remote control of this return), to use in particular the (s) sensor (s) already planned (s) position angular position of the head relative to the support and / or the arm and the associated electronics in such a manner that a detent rotation detection of the head causes the oscillatory control of the arm during the return movement of the head after disengagement and, preferably, that at the end of stroke back of the finger, while the head returns to the normal operating position, these means control a greater oscillation amplitude of the arm, to clear the finger of the last stop of the series, then allowing the free rotation of the arm in its normal plane of operation.

D'autres caractéristiques intéressantes apparaîtront encore de la description encore plus détaillée qui suit, en référence aux dessins annexés dans lesquels :

  • La figure 1 est une vue d'ensemble d'une barrière automatique suivant l'invention dont le bras est disposé en position horizontale de contrôle d'accès des véhicules circulant sur une voie suivant une trajectoire A.
  • La figure 2 est une vue éclatée d'un exemple de dispositif de dégondage suivant l'invention dont les différentes pièces sont présentées séparées et disposées suivant l'axe vertical XX' pour plus de compréhension.
  • La figure 3 est une vue en perspective de l'ensemble d'une tête mécanique et de son bras pivotant.
  • La figure 4 est une autre vue éclatée sous un autre angle de la tête mécanique de la figure 3 disposée juste au dessus de son support,
  • La figure 5 est une vue schématique d'une partie du système électronique de commande de la barrière.
  • Les figures 6, 7 et 8 montrent successivement et de façon schématique la situation lorsque la barrière est dans la position normale de fonctionnement (figure 6), et lorsque la tête est dans son état dégondé, avec le bras dans son régime oscillatoire (figures 7 et 8).
  • La figure 9 correspond à une variante à une autre échelle de l'ensemble cliquet/crémaillère, suivant la vue de la figure 4.
  • La figure 10 est un agrandissement local, de face, dudit ensemble montré figure 9.
Other interesting features will become apparent from the even more detailed description which follows, with reference to the accompanying drawings in which:
  • The figure 1 is an overview of an automatic barrier according to the invention, the arm is arranged in a horizontal access control position of vehicles traveling on a track along a trajectory A.
  • The figure 2 is an exploded view of an exemplary peeling device according to the invention, the different parts are presented separated and arranged along the vertical axis XX 'for more understanding.
  • The figure 3 is a perspective view of the assembly of a mechanical head and its pivoting arm.
  • The figure 4 is another exploded view from another angle of the mechanical head of the figure 3 arranged just above its support,
  • The figure 5 is a schematic view of part of the electronic control system of the barrier.
  • The figures 6 , 7 and 8 show successively and schematically the situation when the barrier is in the normal operating position ( figure 6 ), and when the head is in its disengaged state, with the arm in its oscillatory regime ( figures 7 and 8 ).
  • The figure 9 corresponds to a variant on another scale of the ratchet / rack assembly, according to the view of the figure 4 .
  • The figure 10 is a local enlargement, of front, of said set shown figure 9 .

En position normale de fonctionnement, comme sur les figures 1 à 3, la tête mécanique est conçue pour faire passer le bras 3 de la position horizontale telle que représentée sur la figure 1 dans la position verticale suivant le plan VV', et réciproquement et cela en respectant certains paramètres.In normal operating position, as on Figures 1 to 3 , the mechanical head is designed to move the arm 3 from the horizontal position as shown in FIG. figure 1 in the vertical position along the plane VV ', and vice versa and this while respecting certain parameters.

Dans l'exemple de réalisation représenté sur la figure 3 dont le principe de mouvement et d'entraînement est celui décrit dans la demande de brevet FR 2 343 118 de Monsieur HEROUT, le bras 3 est maintenu au repos, dans la position verticale par un ressort 15.In the exemplary embodiment shown on the figure 3 whose principle of movement and training is that described in the application for FR 2,343,118 of Monsieur HEROUT, the arm 3 is kept at rest, in the vertical position by a spring 15.

Lorsqu'un ordre d'abaissement du bras vers la position horizontale est donnée le moteur couple 8 est alimenté et son arbre de sortie 8a entraîne en rotation un maneton 12 qui entraîne lui-même dans un mouvement circulaire un roulement ou galet 13 qui se déplace en aller-retour dans une fente 16 de la bielle; par construction, une rotation du maneton de 270° par exemple entraîne une rotation de la bielle de 90°. En fin de course le roulement 13 appuie sur une butée 19 en caoutchouc de haute densité qui sert à amortir les chocs et les vibrations.When an order to lower the arm to the horizontal position is given the torque motor 8 is energized and its output shaft 8a rotates a crankpin 12 which itself drives in a circular motion a rolling bearing or roller 13 which moves back and forth in a slot 16 of the connecting rod; by construction, a rotation of the pinion of 270 ° for example causes a rotation of the connecting rod of 90 °. At the end of the race, the bearing 13 presses against a stop 19 made of high-density rubber which serves to dampen shocks and vibrations.

L'arbre 9, sur l'une des extrémités duquel est fixée la bielle 11, bande le ressort de torsion 15 (disposé concentriquement) par l'intermédiaire d'un maneton d'accrochage 14 rendu solidaire de l'arbre 9 par serrage, l'autre extrémité 151 du ressort venant en appui contre une pièce support 7 de la tête 1. L'arbre 9 tourne sur deux roulements 10 montés en opposition sur cette pièce support 7. L'énergie accumulée par le ressort sert soit à soulager le moteur 8 dans le mouvement de relèvement de la lisse, soit à relever le bras 3 jusqu'à la position verticale, dans l'état dégondé de la tête 1. Cet état est atteint lorsqu'il y a eu coupure d'alimentation électrique du moteur ou dans la solution ci-après.The shaft 9, on one end of which is fixed the connecting rod 11, strips the torsion spring 15 (arranged concentrically) via a catch pin 14 secured to the shaft 9 by clamping, the other end 15 1 of the spring bearing against a support part 7 of the head 1. The shaft 9 rotates on two bearings 10 mounted in opposition on the support part 7. The energy accumulated by the spring serves either to relieve the engine 8 in the raising movement of the arm, or raising the arm 3 to the vertical position, in the disengaged state of the head 1. This state is reached when there has been a power failure of the engine or in the solution below.

L'extrémité opposée de l'arbre 9 reçoit un support 6 pour le bras 3. Le support 6 peut être fixé sur l'arbre 9 par deux goupilles et à son autre extrémité l'arbre 9 peut être associé à un capteur de position 17 angulaire qui permet de contrôler à tout moment la position angulaire du bras.The opposite end of the shaft 9 receives a support 6 for the arm 3. The support 6 can be fixed on the shaft 9 by two pins and at its other end the shaft 9 can be associated with a position sensor 17 angular which allows to control at any time the angular position of the arm.

Le dispositif de dégondage de la barrière comporte un moyen 4 de solidarisation entre le support 20 et la tête 1 apte à autoriser le mouvement de celle-ci dans le plan horizontal HH' par rapport au support 20. Le moyen de solidarisation 4 est ici constitué d'une unique vis ou équivalent 4 qui s'étend suivant l'axe vertical XX' et maintient une pièce 7 de la tête, tout en autorisant la rotation de cette pièce par rapport au support, autour dudit axe XX'. La pièce 7 peut servir d'appui pour l'ensemble des éléments mécaniques de la tête contre le support 20, tel que cela est représenté sur la figure 2.The device for disengaging the barrier comprises a means 4 for securing between the support 20 and the head 1 able to allow the movement thereof in the horizontal plane HH 'relative to the support 20. The securing means 4 is here constituted a single screw or equivalent 4 which extends along the vertical axis XX 'and maintains a part 7 of the head, while allowing the rotation of this part relative to the support, about said axis XX'. The part 7 can serve as a support for all the mechanical elements of the head against the support 20, as shown in FIG. figure 2 .

Comme indiqué précédemment, ce support 20 peut être celui du pied coffre 2 quand la tête 1 y est montée: en ce cas le dispositif de dégondage peut être disposé entre la semelle inférieure 21 du pied coffre 2 et le support 20' fixe placé au sol et sur lequel sont alors fixés à la fois la tête 1 et le pied de la barrière, ce dernier pivotant alors avec la tête 1. Ainsi chaque fois que dans la présente demande on décrit le pivotement de la tête 1 par rapport au support 20 cela concerne également la solution du pivotement de l'ensemble de la tête et du pied par rapport au support 20' ancré au sol.As indicated above, this support 20 may be that of the boot foot 2 when the head 1 is mounted therein: in this case the release device may be disposed between the lower sole 21 of the foot box 2 and the support 20 'fixed on the ground and on which are then fixed both the head 1 and the foot of the barrier, the latter then pivoting with the head 1. Thus whenever in the present application describes the pivoting of the head 1 relative to the support 20 this also relates to the solution of the pivoting of the entire head and foot relative to the support 20 'anchored to the ground.

Suivant la figure 2 le dispositif de dégondage comporte un moyen de bridage de la tête mécanique 1 sur le pied 2 apte à régler le freinage et l'amortissement de rotation de la tête 1. Ce moyen de bridage comprend une plaque de glissement 5 (dont au moins une surface plane est de faible coefficient de frottement et disposée contre une platine plane 71) et un dispositif de compression 25 apte à maintenir un serrage donné entre la patine 71 et la plaque 5.Following the figure 2 the disengaging device comprises a means for clamping the mechanical head 1 on the base 2 adapted to adjust the braking and rotational damping of the head 1. This clamping means comprises a sliding plate 5 (at least one surface plane is of low coefficient of friction and arranged against a flat plate 7 1 ) and a compression device 25 able to maintain a given tightening between the patina 7 1 and the plate 5.

Le platine 71 peut être une pièce solidaire soit de la tête 1, telle que représentée sur la figure 2, soit du support 20 et inversement pour la plaque 5.The platen 7 1 may be a part integral with the head 1, as shown in FIG. figure 2 either of the support 20 and vice versa for the plate 5.

La tête mécanique 1 est ainsi bridée par l'intermédiaire de la vis 4 dans un trou situé ici au centre du support 20 qui est la platine supérieure du pied coffre 2. Entre les deux platines 71, 20, la plaque ronde 5 (par exemple en polyéthylène), fixée dans l'exemple décrit sur le support 20, facilite le glissement en rotation de la tête 1 vis-à-vis du pied support.The mechanical head 1 is thus clamped through the screw 4 in a hole located here in the center of the support 20 which is the upper plate of the box foot 2. Between the two plates 7 1 , 20, the round plate 5 (by example polyethylene), fixed in the example described on the support 20, facilitates the sliding in rotation of the head 1 vis-à-vis the support foot.

Le dispositif de compression 25 peut être constitué de deux rondelles élastiques 251, immobilisées et comprimées par un écrou freiné 252 vissé sur la vis 4, avec une force de serrage appropriée. Dès qu'une force horizontale est appliquée au bras 3 l'ensemble de la tête mécanique 1 et du bras 3 tourne alors suivant cette vis axe 4 ; la force de serrage de celle-ci par le dispositif de compression 25 permet le ralentissement du mouvement de rotation.The compression device 25 may consist of two spring washers 25 1 , immobilized and compressed by a lock nut 25 2 screwed onto the screw 4, with a suitable clamping force. As soon as a horizontal force is applied to the arm 3, the assembly of the mechanical head 1 and of the arm 3 then rotates along this screw axis 4; the clamping force of the latter by the compression device 25 allows the slowdown of the rotational movement.

Comme illustré la platine 7 peut avoir une forme de U asymétrique constitué d'une seule pièce dont la grande branche 73 du U reçoit le moteur 8 d'entraînement du bras, la petite branche 72 reçoit dans une échancrure ouverte 24 un roulement support de l'arbre 9 d'entraînement du bras 3 et l'âme 71 du U reçoit le moyen de solidarisation du dispositif de dégondage, telle qu'à travers un trou carré pour positionner la vis-axe 4 épaulée.As illustrated, the plate 7 may have an asymmetrical U-shape consisting of a single piece whose large branch 7 3 of the U receives the drive motor 8 of the arm, the small branch 7 2 receives in an open slot 24 a bearing support of the drive shaft 9 of the arm 3 and the web 7 1 of the U receives the securing means of the unhinging device, such as through a square hole to position the screw-axis 4 shouldered.

Dès qu'une force horizontale est appliquée au bras 3 l'ensemble de la tête mécanique 1 et du bras 3 tourne suivant l'axe de la vis 4, la force de serrage de celle-ci par le dispositif de compression 25 permettant de ralentir la rotation.As soon as a horizontal force is applied to the arm 3 the assembly of the mechanical head 1 and the arm 3 rotates along the axis of the screw 4, the clamping force thereof by the compression device 25 to slow down the rotation.

La rotation de dégondage est limitée à un quart de tour par une butée mécanique solidaire de la platine 7 et coulissant dans une longue fente 22 de la plaque 5 (qui peut avoir la forme de la figure 2 ou de la figure 4). Sous l'effet de la force horizontale qui le heurte, le bras en pivotant dégage le passage A (figure 1) : en fin de rotation le bras peut éventuellement continuer de fonctionner librement sans engendrer le moindre problème puisqu'il est toujours solidaire de la tête 1 et se trouve parallèle à la voie d'accès A le long de la bordure du trottoir.The disengagement rotation is limited to a quarter of a turn by a mechanical stop secured to the plate 7 and sliding in a long slot 22 of the plate 5 (which may have the shape of the figure 2 or from figure 4 ). Under the effect of the horizontal force that hits it, the pivoting arm releases the passage A ( figure 1 ): at the end of rotation the arm can optionally continue to operate freely without causing any problems since it is always integral with the head 1 and is parallel to the access path A along the curb.

Un capteur 18 de position angulaire autour de l'axe vertical XX' de la tête par rapport au support 2, 20, fixé à la platine 7 et tournant dans la fente 22 agit sur le moteur 8 d'entraînement du bras 3 dès le début de rotation de dégondage de la tête 1 (par exemple 5°) et le bras 3 remonte alors à la verticale sous l'impulsion du moteur 8 en petite vitesse. Le contacteur 18 peut aussi signaler la position dégondée au poste de surveillance.A sensor 18 of angular position around the vertical axis XX 'of the head relative to the support 2, 20, fixed to the plate 7 and rotating in the slot 22 acts on the drive motor 8 of the arm 3 from the beginning turn of rotation of the head 1 (for example 5 °) and the arm 3 then rises vertically under the impulse of the motor 8 at low speed. The switch 18 may also signal the disengaged position at the monitoring station.

Le contacteur 18 qui contrôle donc la rotation de dégondage/retour de la platine 7 par rapport au pied 2 (support 20) et le capteur de position 17 qui donne le sens de rotation de l'arbre 9 participent ainsi à la gestion électronique des paramètres de mouvement du bras et de la tête, tant en fonctionnement normal qu'en situation dégondée.The contactor 18 which thus controls the rotation of unstacking / return of the plate 7 relative to the foot 2 (support 20) and the position sensor 17 which gives the direction of rotation of the shaft 9 thus participate in the electronic management of the parameters. of movement of the arm and the head, both in normal operation and disengaged situation.

Le système de dégondage peut être verrouillé:

  • en position de fonctionnement normal par un index escamotable et
  • quand la tête 1 est en position dégondée par un index anti-retour 23 qui peut être constitué par un logement réalisé dans la pièce support 20 et un doigt mobile solidaire de la platine support 7 à travers la plaque 5.
The release system can be locked:
  • in normal operating position by a retractable index and
  • when the head 1 is in the disengaged position by a non-return index 23 which can be constituted by a housing made in the support part 20 and a movable finger integral with the support plate 7 through the plate 5.

Toutefois, un retour automatique est envisagé.However, an automatic return is envisaged.

Sur la figure 4, on constate ainsi que le côté de son extrémité proche de sa fixation sur l'arbre 9 la bielle 11 porte un doigt 30 adapté pour engrener avec les dents d'une crémaillère 31, à la manière d'un cliquet. La crémaillère 31 est fixée à la périphérie du pied support 2, vers son extrémité supérieure de telle sorte que ses dents s'étendent les unes à la suite des autres, sensiblement horizontalement.On the figure 4 It can thus be seen that the side of its end near its attachment to the shaft 9 of the connecting rod 11 carries a finger 30 adapted to mesh with the teeth of a rack 31, in the manner of a pawl. The rack 31 is fixed to the periphery of the support leg 2 towards its upper end so that its teeth extend one after the other, substantially horizontally.

Un tel ensemble bielle/cliquet/crémaillère définit, avantageusement avec le moteur 8 et la logique de contrôle associée (notamment les capteurs 17, 18), l'essentiel des moyens de retour qui vont permettre de rappeler la tête 1, et en particulier le bras 3 en position normale de fonctionnement, après dégondage, en tirant parti de la possibilité de faire alors osciller le bras 3 de quelques degrés autour d'une position établie, laquelle position est typiquement sa position de sécurité verticale ou sensiblement verticale, comme sur la figure 4.Such a rod / ratchet / rack assembly defines, advantageously with the motor 8 and the associated control logic (in particular the sensors 17, 18), most of the return means which will allow to recall the head 1, and in particular the arm 3 in the normal operating position, after disengagement, taking advantage of the possibility of then oscillate the arm 3 by a few degrees around an established position, which position is typically its vertical or substantially vertical safety position, as on the figure 4 .

Au demeurant, en utilisant un mécanisme de transformation de mouvement 40, construit ici autour de la bielle 11, et transformant un mouvement circulaire d'oscillation du bras autour de l'axe horizontal 3a de son bras 3 en un mouvement rectiligne alternatif sensiblement horizontal, ceci en combinaison avec les moyens de poussée constitué dans l'exemple de réalisation par le doigt 30 et la crémaillère 31, on va pouvoir aisément gérer la rotation retour de la tête 1 par rapport au support 2, 20, puisque lors des rotations dans un sens du bras 3, le doigt et l'une au moins des butées d'appui de la crémaillère viendront buter l'un contre l'autre sous l'effet du mouvement rectiligne imposé par le mécanisme 40.Moreover, by using a movement transformation mechanism 40, built here around the connecting rod 11, and transforming a circular oscillation movement of the arm around the horizontal axis 3a of its arm 3 into a substantially horizontal reciprocating rectilinear movement, this in combination with the thrust means constituted in the embodiment by the finger 30 and the rack 31, we will be able to easily manage the return rotation of the head 1 relative to the support 2, 20, since during rotations in a direction of the arm 3, the finger and at least one of the support abutments of the rack will abut against each other under the effect of the movement rectilinear imposed by the mechanism 40.

Si, avantageusement et comme illustré sur la figure 4, on utilise le moteur 8 et le dispositif moto-réducteur associé (non représenté) pour la manoeuvre du bras 3 tant lors de son fonctionnement normal que de son mouvement oscillatoire permettant donc à la tête 1 de revenir dans la position normale de fonctionnement du bras, on va pouvoir à la fois limiter le nombre de pièces rajoutées pour assurer cette fonction de retour automatique, n'utiliser qu'un seul moteur et un seul mécanisme pour les deux types de mouvement du bras 3 et permettre ainsi d'adapter sur des barrières existantes le dispositif de retour automatique conforme à l'invention, sans modification importante.If, advantageously and as illustrated on the figure 4 , the motor 8 and the associated geared motor device (not shown) are used for the operation of the arm 3 both during its normal operation and its oscillatory movement thus allowing the head 1 to return to the normal operating position of the arm , we will be able both to limit the number of parts added to ensure this automatic return function, to use only one motor and a single mechanism for the two types of movement of the arm 3 and thus allow to adapt on existing barriers the automatic return device according to the invention, without significant modification.

On peut également noter qu'avec la solution de l'invention, on dispose vis-à-vis de l'axe de pivotement 3a du bras d'un moment qui, compte tenu de la dimension réelle de la barrière, compense sensiblement le couple à vaincre du fait du freinage du dégondage ( typiquement 5 m.kg).It may also be noted that with the solution of the invention, the arm of a moment which, taking into account the actual dimension of the barrier, substantially compensates for the torque is arranged with respect to the pivot axis 3a. to overcome because of braking disengagement (typically 5 m.kg).

Sur la figure 5, on a représenté très schématiquement une partie de la logique électronique de commande de la barrière.On the figure 5 very schematically, a part of the electronic control logic of the barrier is shown.

Les capteurs 17 et 18 sont liés à l'unité électronique de contrôle 33 qui commande la manoeuvre du bras 3, via le moteur 8, en fonction de la position angulaire de la tête 1 (position normale de fonctionnement ou plus ou moins dégondée).The sensors 17 and 18 are connected to the electronic control unit 33 which controls the operation of the arm 3, via the motor 8, as a function of the angular position of the head 1 (normal operating position or more or less disengaged).

Via les capteurs, l'unité électronique de contrôle 33 pourvue d'un microprocesseur programmable et d'une unité mémoire définit donc deux modes de mouvement angulaire du bras 3 : fonctionnement oscillatoire de quelques degrés autour de la verticale en mode dégondé ou rotation entre la verticale et l'horizontale en mode « normal ».Via the sensors, the electronic control unit 33 provided with a programmable microprocessor and a memory unit thus defines two modes of angular movement of the arm 3: oscillatory operation of a few degrees around the vertical in disengaged mode or rotation between vertical and horizontal in "normal" mode.

Si le bras 3 est heurté par un véhicule, la tête 1 pivote donc d'un certain angle autour de l'axe XX' à partir de sa position initiale (normale de fonctionnement).If the arm 3 is hit by a vehicle, the head 1 rotates at an angle about the axis XX 'from its initial position (normal operation).

L'unité électronique de contrôle 33 est alors informée par le capteur 18 qu'un certain angle de rotation de dégondage a été appliqué à la tête 1 et que le mouvement du bras 3 doit être modifié.The electronic control unit 33 is then informed by the sensor 18 that a certain angle of rotation of disengagement has been applied to the head 1 and that the movement of the arm 3 must be modified.

Le bras 3 remonte alors en position verticale.The arm 3 then rises in a vertical position.

Puisque la tête 1 a tourné, le doigt 30 engrène en outre avec l'une des butées (dents) 31.Since the head 1 has rotated, the finger 30 also meshes with one of the abutments (teeth) 31.

L'unité électronique de contrôle 33 active alors le moteur 8 pour qu'en liaison avec le capteur 17, le bras oscille d'environ 5 à 10° par rapport à la verticale, autour de 3a (figures 6 et 7). Ainsi, le bras 3 commence sa première oscillation. Le doigt 30 se déplace alors sous l'effet de la bielle 11 et applique une force sensiblement horizontale sur l'une des butées de la denture 31 qui peut être située radialement à environ 10 à 20 cm de l'axe XX'. La réaction de la dent engendre un couple qui provoque la rotation de la tête 1 tendant à la ramener vers sa position angulaire initiale.The electronic control unit 33 then activates the motor 8 so that in connection with the sensor 17, the arm oscillates about 5 to 10 ° with respect to the vertical, around 3a ( figures 6 and 7 ). Thus, the arm 3 begins its first oscillation. The finger 30 then moves under the effect of the rod 11 and applies a substantially horizontal force on one of the stops of the toothing 31 which can be located radially at about 10 to 20 cm from the axis XX '. The reaction of the tooth generates a torque which causes the rotation of the head 1 tending to bring it back to its initial angular position.

En pratique, l'angle de rotation pas à pas de la tête permettra d'avancer dent par dent, voire plus, ceci étant fonction du débattement toléré du bras par rapport à la verticale et des dimensions d'engrènement entre le doigt et les dents.In practice, the angle of rotation step by step of the head will advance tooth by tooth or more, this being a function of the tolerated movement of the arm relative to the vertical and meshing dimensions between the finger and the teeth .

Ainsi, après une oscillation typiquement d'environ 10°, le bras s'arrête et revient en arrière (figure7). Le doigt 31 a alors fait tourner la tête d'un angle correspondant à un peu plus d'un pas de denture de la crémaillère. Le bras 3 revient en arrière vers sa position verticale. Le cliquet 30 revient aussi en arrière, en sautant une dent.Thus, after an oscillation typically of about 10 °, the arm stops and goes back ( Figure 7 ). The finger 31 then rotated the head by an angle corresponding to a little more than one tooth pitch of the rack. Arm 3 goes back to its vertical position. Pawl 30 also comes back, jumping a tooth.

Le mouvement recommence ainsi jusqu'à ce que la tête soit revenue angulairement à sa position initiale.The movement begins again until the head is angularly returned to its original position.

Dans cet état, le doigt 30 se trouve alors avantageusement en face de la partie 31a sans denture, permettant ainsi au bras 3 de retrouver sa possibilité de libre mouvement entre ses positions horizontale et verticale de fonctionnement normal (figure 8).In this state, the finger 30 is then advantageously in front of the part 31a without toothing, thus allowing the arm 3 to regain its possibility of free movement between its horizontal and vertical positions of normal operation ( figure 8 ).

Au passage, le capteur 18 a avantageusement transmis une information de fin de course du doigt 30 vers les moyens de contrôle 33, de sorte que via le microprocesseur un ordre de commande du moteur 8 a été généré pour qu'au moment de cette fin de course une amplitude d'oscillation plus importante soit appliquée au bras 3 (par exemple jusqu'à 15°) afin de dégager le doigt de la dernière dent et autoriser ainsi la libre rotation du bras (le doigt étant alors a une distance suffisante de la dernière dent).In passing, the sensor 18 has advantageously transmitted end of travel information of the finger 30 to the control means 33, so that via the microprocessor a control command of the motor 8 has been generated so that at the end of this stroke a greater oscillation amplitude is applied to the arm 3 (for example up to 15 °) to release the finger from the last tooth and allow the free rotation of the arm (the finger then being at a sufficient distance from the last tooth).

En alternative, voire en complément à cette solution, on pourrait utiliser un moyen de rappel de fin de course, tel qu'un électro-aimant 39 (voir figure 4) ou un ressort 41 (figure 10) pour écarter entre eux le doigt 30 et la série de butées 31 lorsque la tête 1 est revenue dans sa position angulaire normale de fonctionnement.As an alternative, or in addition to this solution, it would be possible to use an end-of-stroke return means, such as an electromagnet 39 (see figure 4 ) or a spring 41 ( figure 10 ) to separate between them the finger 30 and the series of stops 31 when the head 1 has returned to its normal angular position of operation.

Pour que les opérations de dégondage/retour de la tête mécanique 1 puissent s'opérer par rotation vers la gauche ou vers la droite, en fonction de l'installation souhaitée, la barre 41 qui porte la crémaillère 31 pourrait être réalisée avec une double crémaillère: une crémaillère sur la tranche supérieure et une crémaillère sur la tranche inférieure, pour un montage à gauche ou à droite.So that the operations of disengagement / return of the mechanical head 1 can be carried out by turning to the left or to the right, depending on the desired installation, the bar 41 which carries the rack 31 could be made with a double rack : a rack on the upper edge and a rack on the lower edge, for mounting left or right.

Après le dégagement du doigt et une fois que la tête est donc retournée dans sa position angulaire normale, l'unité électronique de contrôle 33 commande le moteur 8 pour que le bras puisse alors de nouveau normalement évoluer sur environ 90° entre ses positions horizontale d'interdiction et verticale de libre circulation.After the release of the finger and once the head has returned to its angular position Normally, the electronic control unit 33 controls the motor 8 so that the arm can then again normally move about 90 ° between its horizontal positions of prohibition and vertical free movement.

Sur les figures 6 à 8 et sur la figure 4, le doigt 30 est une lame élastique et les dents de la crémaillère présentent une pente plus marquée du côté de l'appui de la lame que de l'autre.On the Figures 6 to 8 and on the figure 4 the finger 30 is an elastic blade and the teeth of the rack have a steeper slope on the side of the support of the blade than the other.

Sur les figures 9 et 10, le doigt, repéré 43, entraîné par la bielle est un cliquet en forme de virgule concave en direction de la fin sans dent de la crémaillère et qui peut engrener avec une crémaillère 45 dont les dents ont la même pente des deux côtés. Une « double crémaillère » n'est alors plus nécessaire. En outre, l'usure et le bruit sont moindres par rapport à la lame. Le ressort de rappel 41, monté à l'arrière du cliquet, est une sécurité en fin de course. Le fonctionnement de cet ensemble cliquet 43 / crémaillère 45 correspond à celui des figures 6 à 8.On the figures 9 and 10 , the finger, marked 43, driven by the rod is a concave comma-shaped ratchet towards the toothless end of the rack and which can mesh with a rack 45 whose teeth have the same slope on both sides. A "double rack" is no longer necessary. In addition, wear and noise are lower compared to the blade. The return spring 41, mounted at the rear of the pawl, is a safety end of stroke. The operation of this ratchet assembly 43 / rack 45 corresponds to that of Figures 6 to 8 .

On notera encore que grâce au dispositif de la présente invention qui est assez simple à réaliser et permet même de simplifier d'autres parties mécaniques de la barrière telles que décrites, le pivotement de l'ensemble mécanique et bras par rapport à l'axe vertical du support de celui-ci permet au bras de libérer le passage en se retrouvant parallèle à la chaussée sans avoir été endommagé et, restant maintenu solidaire de sa tête mécanique et donc dans une position contrôlée, ne pouvant pas heurter d'autres équipements autour de la barrière.It will be noted that thanks to the device of the present invention which is quite simple to produce and even makes it possible to simplify other mechanical parts of the barrier as described, the pivoting of the mechanical assembly and arm relative to the vertical axis the support of the latter allows the arm to release the passage being found parallel to the floor without having been damaged and, remaining secured to its mechanical head and therefore in a controlled position, can not hit other equipment around the barrier.

Sur la figure 4, s'il n'y avait pas de retour automatique, la bielle 11 serait dépourvue de son embout porteur de la lame 30, de même sur les figures 9 et 10.On the figure 4 , if there was no automatic return, the connecting rod 11 would be devoid of its carrier end of the blade 30, likewise on the figures 9 and 10 .

Claims (16)

  1. Barrier for a vehicle access control, comprising a mechanical head (1) fixed to a support (20) and driving an arm (3) in rotation in a vertical plane (V, V') and an unhinging device enabling the arm (3) to retract in the event of impact by a vehicle, the unhinging device therefore this purpose comprising a means (4) of connection between the support (20) and the head (1) able to allow the pivoting of the latter in the horizontal plane (H, H') with respect to the support (20), characterised in that the unhinging device comprises an adjustable clamping means (5, 71, 25) that establishes a mechanical connection with friction between the head (1) and its support (2, 20, 20') with therefore an effect of rotational braking of this head (1) when it retracts, and that is able to adjust the threshold of the impact force beyond which this retracting takes place.
  2. Barrier according to claim 1, characterised in that the clamping means comprises a disc (5), at least one surface of which has a low coefficient of friction and is disposed against a bracket (7, 71) secured either to the head (1) or to the support (20, 20'), the disc (5) then being secured either to the support (20) or to the head (1), and a compression device (25) able to maintain a given clamping between the bracket (7, 71) and said disc (5).
  3. Barrier according to claim 2, in which the arm is driven in rotation by a motor (8), by means of a shaft (9), characterised in that it comprises:
    - a sensor (17) for the position of the arm by means of which the direction of rotation of the shaft (9) is supplied, and
    - a contactor (18) by means of which the rotation of the bracket (7) with respect to the support is controlled, the contactor (18) preferably cutting the supply to the motor (8) driving the arm as soon as said head (1) starts to rotate towards its unhinged position, the arm then rising again to the vertical under the impulse of a return spring (15).
  4. Barrier according to any one of the preceding claims, characterised in that the connection means (4) consists of a single vertical spindle holding a piece (7) of the head (1) against the support (20) and allowing the rotation of said piece (7) around this spindle with respect to the support (20).
  5. Barrier according to any one of claims 1 to 4, characterised in that the unhinging device comprises at least one non-return index (23) locking the head (1) in the unhinged position when it is in this state.
  6. Barrier according to any one of the preceding claims, the head (1) of which is mounted on a box leg (2) and comprising an electronic control and actuation device, characterised in that the unhinging device is disposed between the bottom sole plate (21) of the box leg (2) and the fixed support (20') to which both the head (1) and the leg (2) of the barrier are fixed, and in that the electronic control and actuation device is preferably located in the box leg (2), under the mechanical head (1).
  7. Barrier according to any one of claims 1 to 6, characterised in that it comprises a drive system able to drive the mechanical head (1) in rotation in order to return it to the normal operating position after an unhinging pivoting.
  8. Barrier according to any one of the preceding claims, characterised in that the unhinging device comprises mechanical stop (22) for the end of pivoting of the head (1) so that the arm (3) disposed in this position is parallel to the vehicle access path (A).
  9. Barrier according to any one of claims 1 to 8, the arm (3) of which consists of a hollow cylinder at least at its end for fixing to the head (1), characterised in that the support (6) for fixing this end comprises a double-wedge system (26) fitted in the hollow cylindrical part and pulled by a concentric clamping screw (28).
  10. Barrier according to any one of claims 1 to 9, characterised in that the head (1) comprises a support (7) in the shape of an asymmetric U consisting of a single piece, where the large leg (73) of the U receives the motor (8) driving the arm (3), the small leg (72) receives, in an open recess (24), a roller bearing supporting the shaft (9) driving the arm (3), on the same side as this, and the web (71) of the U receives the means (4) of securing the unhinging device.
  11. Barrier according to claim 1, characterised in that it also comprises return means (40; 8, 11, 30, 31) able to drive the mechanical head (1) in rotation in order to return it to the normal operating position of the arm after the unhinging pivoting, these return means comprising:
    - means (17, 33) of controlling the arm in the unhinged position of the barrier in order to limit the angle of rotation of this arm compared with the one in which it operates in the normal functioning position and to then make it perform rockings about a reference position, preferable vertical,
    - and thrust means for driving the head (1) in rotation with respect to the support (2, 20) in the said horizontal plane, these thrust means, which comprise a finger (30) and a series of support stops (31) disposed substantially horizontally, being connected one to the rocking movement in the arm and the other to the support (2, 20), so that, during rotations of the arm (3) in one direction, the finger and at least one of the support stops abut against each other under the effect of the rectilinear movement imposed by the mechanism.
  12. Barrier according to claim 11, in which the barrier also comprises a movement transformation mechanism (11, 12; 40), connected to the arm (3) and adapted to transform a circular rocking movement of this arm about its axis (3a) into a substantially horizontal alternating rectilinear movement, this mechanism comprising a link (11) mounted on the rotation axis of the arm (3),
    characterised in that:
    - the finger (30) and the series of support stops (31) define respectively a catch and a rack,
    - and the movement transformation mechanism (11, 12; 40) imparts the alternating rectilinear movement to the said thrust means, preferably to the finger.
  13. Barrier according to either one of claims 11 or 12, comprising a sensor (18) for the angular position of the head with respect to the support (2, 20; 20'), characterised in that the control means (17, 33) function with this sensor and are adapted so that a detection by the sensor of an unhinging rotation of the head (1) causes the oscillatory control of the arm (3) during the return movement of the head after unhinging and, preferably, so that, at the end of return travel of the finger, while the head returns to the normal operating position under the action of the return mechanism, these means (17, 33) demand a greater rocking amplitude of the arm in order to release the finger from the last stop in the series, then allowing the free rotation of the arm in its normal operating plane.
  14. Barrier according to any one of claims 11 to 13, characterised in that it comprises separation means (18, 33, 39) between the finger and the stops in order to separate them when the head (1) has been returned to its normal operating position.
  15. Barrier according to any one of claims 11 to 14, characterised in that, at an end corresponding to an end-of-travel position between the catch (30) and the rack (31), the rack has a part (31a) without teeth facing which the catch is disposed, in order to allow the free rotation of the arm between its normal vertical and horizontal operating positions.
  16. Barrier according to any one of claims 11 to 15, characterised in that the control means comprise means (17, 33) of limiting the rocking angle of the arm (3) between a vertical position and a position slightly inclined with respect to the vertical, during the return of the head after unhinging, the angle of inclination preferably being limited between 5° and 10° with respect to the vertical.
EP03291932A 2002-08-09 2003-07-31 Lift-off barrier for vehicle access control Expired - Lifetime EP1394325B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR0210173A FR2843410B1 (en) 2002-08-09 2002-08-09 BARRIER FOR CONTROLLING ACCESS TO VEHICLES AND COMPRISING A DEGONDING DEVICE
FR0210173 2002-08-09
FR0305741A FR2854908B1 (en) 2003-05-13 2003-05-13 BARRIER FOR CONTROLLING VEHICLE ACCESS WITH AUTOMATED RETURN DEVICE, AFTER DEGUNDING
FR0305741 2003-05-13

Publications (2)

Publication Number Publication Date
EP1394325A1 EP1394325A1 (en) 2004-03-03
EP1394325B1 true EP1394325B1 (en) 2008-04-02

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Application Number Title Priority Date Filing Date
EP03291932A Expired - Lifetime EP1394325B1 (en) 2002-08-09 2003-07-31 Lift-off barrier for vehicle access control

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EP (1) EP1394325B1 (en)
AT (1) ATE391208T1 (en)
DE (1) DE60320070D1 (en)

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FR2883010B1 (en) 2005-03-14 2010-08-20 Bca Barrieres & Controle D Acc IMPROVED SAFETY BARRIER
EP2362020A1 (en) * 2010-02-26 2011-08-31 Givasa, S.A. Device for transitions in vehicle traffic lane closures
CN101914901B (en) * 2010-06-04 2013-04-17 张劲松 Brake bar connecting device
ITVR20120052A1 (en) 2012-03-21 2013-09-22 R I B S R L BARRIER FOR VEHICLE TRANSIT CONTROL
FR3017886B1 (en) * 2014-02-25 2017-08-11 La Barriere Automatique DEVICE FOR AUTOMATICALLY CLOSING A CIRCULATION PATH
DE202015101299U1 (en) * 2015-03-13 2016-06-16 M.T.H. Maschinen & Hydraulikanlagen GmbH Barriers articulation device
PL70748Y1 (en) 2017-03-31 2019-05-31 Wielobranzowa I Projektowa Spolka Z Ograniczona Odpowiedzialnoscia Monat Road barrier safety catch assembly
CN110455383A (en) * 2019-08-23 2019-11-15 郑州今迈衡器有限公司 A kind of intelligent weighing system
CN110450829B (en) * 2019-09-12 2024-03-08 通号万全信号设备有限公司 Breast gate machine node adjusting seat
CN111619987B (en) * 2020-06-29 2020-11-24 侨益物流股份有限公司 Rod lifting device for grain warehouse
CN111827164B (en) * 2020-07-23 2021-12-28 杭州启泽五金机械有限公司 Buffer structure of access control barrier gate release rod

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US2352310A (en) * 1941-04-08 1944-06-27 Buda Co Railway crossing gate
US2349933A (en) * 1943-03-25 1944-05-30 Superior Plating Works Coupling structure
US3024550A (en) * 1960-01-08 1962-03-13 Hughes Rotatable base for traffic control gate standards
DE4411867A1 (en) * 1994-04-08 1995-10-12 Magnetic Elektromotoren Gmbh Traffic barrier with motor-driven opening and shutting action
FR2759399A1 (en) * 1997-02-12 1998-08-14 Franceschi Gerard De Anti-shock mounting for automatic car parking barrier
FR2765901B1 (en) * 1997-07-10 1999-09-24 Georges Demaizieres SUPPORT DEVICE FOR ROAD SIGNALING PANEL

Also Published As

Publication number Publication date
DE60320070D1 (en) 2008-05-15
EP1394325A1 (en) 2004-03-03
ATE391208T1 (en) 2008-04-15

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