EP2754465A1 - Fall-arresting and rope-blocking safety apparatus - Google Patents

Fall-arresting and rope-blocking safety apparatus Download PDF

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Publication number
EP2754465A1
EP2754465A1 EP13354045.0A EP13354045A EP2754465A1 EP 2754465 A1 EP2754465 A1 EP 2754465A1 EP 13354045 A EP13354045 A EP 13354045A EP 2754465 A1 EP2754465 A1 EP 2754465A1
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EP
European Patent Office
Prior art keywords
rope
chute
open position
cleats
fall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13354045.0A
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German (de)
French (fr)
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EP2754465B1 (en
Inventor
Julien Moine
Alain Maurice
Michael Chaumontet
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Zedel SAS
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Zedel SAS
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Priority to PL13354045T priority Critical patent/PL2754465T3/en
Publication of EP2754465A1 publication Critical patent/EP2754465A1/en
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Publication of EP2754465B1 publication Critical patent/EP2754465B1/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/14—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brakes sliding on the rope
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B29/00—Apparatus for mountaineering
    • A63B29/02—Mountain guy-ropes or accessories, e.g. avalanche ropes; Means for indicating the location of accidentally buried, e.g. snow-buried, persons

Definitions

  • the document FR2600898 relates to a rope stopper, wherein the restraint system is formed by a pivoting trigger for cooperating in the closed position with the rope.
  • the latter can slide in the chute of the body in the direction of the rise, or on the contrary be blocked by the trigger in case of fall of the user.
  • the trigger is provided with a gripping lever that can be actuated to drive it to the open position allowing access to the chute, and allowing the introduction of the rope into the chute.
  • the lever is provided with a lever facilitating opening and closing maneuver.
  • certain manipulations of the rope may exert some pressure or friction the rope on the lever, which may cause the trigger to open involuntarily, to the detriment of safety.
  • the document EP 2911870 mentions a cam lock for anchoring on a fixed rope, said blocker comprising a buttonhole connecting arm articulated between the pivot of the cam and the chute body.
  • a double latch that is integral with the body is configured to maintain the two opposite ends of the pivot in aligned cells acting as bearings. The presence of the double lock and the connecting arm allows to quickly insert and release the pivot in the cells.
  • the object of the invention is to secure the operation of a fall arrest and rope lock device by preventing inadvertent opening of its restraint system.
  • the security apparatus is characterized in that the control device comprises a pair of gripping lugs adapted to be actuated simultaneously to stabilize and lock the retaining system in the open position allowing access to the chute, the two gripping cleats being arranged side by side on a transverse axis integral with the pivoting retaining system.
  • a fixed plastic blade is advantageously interposed between the two gripping cleats to prevent the support on one of the cleats does drive the other cleat.
  • each gripping cleat is equipped with a boss intended to abut against a stop of the body when the two cleats are not actuated simultaneously by pivoting in the opening direction.
  • Such a double-cleat control device can be used in any rope safety device, whether it is of the roller fall arrest or cam lock type.
  • a fall arrest apparatus 10 is used for the safety of a person moving along a fixed insurance rope 11.
  • the fall arrest device 10 is connected to the harness, and follows the progress of the person without causing blockage during normal use of ascent or descent. The person is then free to move without any manual intervention of unlocking the fall arrest device 10.
  • the fall arrest apparatus 10 comprises a rigid body 12, preferably a metal body, having on one side a rectilinear chute 13 of U section for the passage of the rope 11, and on the other side, a stirrup 14 for the mounting of a retaining system 15 roller 16 blocker.
  • the retaining system 15 with a roller 16 blocker is capable of occupying either an active blocking position in the event of a fall, or an inactive unlocking position allowing the person to progress along the rope 11 in the upward direction or in the opposite direction during a controlled descent.
  • the roller 16 in the form of a cylindrical wheel is carried by a pivoting double-arm support device articulated about a first axis 18 of the body 12.
  • the peripheral surface of the roller 16 is provided with inclined pins, and a torsion spring (not shown) is threaded on the first axis 18 to urge the support arm assembly 17 and roller 16 towards the bottom of the chute 13.
  • the roller 16 is mounted for free rotation on a second axis 19 of the arms 17, and the inside of the roller 16 encloses a centrifugal coupling (not shown) intended to occupy a disengaged position or a position engaged as a function of the speed or acceleration of the roller 16 blocker.
  • a centrifugal coupling (not shown) intended to occupy a disengaged position or a position engaged as a function of the speed or acceleration of the roller 16 blocker.
  • the centrifugal coupling In the normal use of ascent or descent, the centrifugal coupling is in the disengaged position, and the roller 16 follows the progression of the person without manual intervention to release the restraint system.
  • the blocking occurs automatically during the passage of the coupling towards the engaged position, causing a strong pressure of the roller against the rope 12 which stops the fall.
  • the principle and the operation of such a retaining system with centrifugal coupling are described as examples in the documents EP 1525903 and EP 1380320 .
  • the body further comprises a reverse U-shaped rocker 20 mounted to tilt around a third axis 21 outside the body 12.
  • the rocker 20 is intended to be connected to the user's shoulder belt, either directly by a connecting lanyard, either via a shock absorber.
  • the retaining system 15 is equipped for this purpose with a pair of cleats 22, 23 gripping, which are formed by levers substantially identical structures, and arranged side by side with the interposition of a fixed blade 24 of plastic.
  • the two cleats 22, 23 are independent of one another, and articulated around a transverse axis common to the two arms 17.
  • Each cleat 22, 23 is associated with a return spring intended to urge it into position. job ( Figures 1 to 3 ).
  • Each cleat 22, 23 is equipped with a boss 26 situated opposite the axis 25, and intended to abut against a stop 27 of the stirrup 14, when the two cleats are not open simultaneously towards the remote access position to the chute 13.
  • the blade 24 spacer thin, has the function of preventing the drive or gripping of one of the latches 22 in the opening direction, causes the other cleat 23 to the position away.
  • the apparatus is in the idle state, and the roller 16 of the retaining system 15 is engaged in the chute 13, making access impossible for the establishment of the rope.
  • the two cleats 22, 23 are located inside the body 12.
  • the presence of the two tabs 22, 23 secures the operation of the device by preventing inadvertent opening and access to the rope.
  • the retention system 115 can be used for a blocking device 100.
  • a blocking device 100 Such an apparatus comprises a body 112 with chute 113, and a trigger 30 pivotally mounted about an axis 31 of a stirrup 114.
  • a handle 32 gripping is fixed to the body 112, and the surface coming into contact with the rope is provided with pins.
  • a return spring urges the trigger 30 towards the bottom of the chute 113.
  • the two tabs 122, 123 of the retaining system are articulated to the trigger 30, and are separated from each other by a blade 124 spacer plastic.
  • the opening of the trigger 30 is secured and requires the simultaneous actuation of the two tabs 122, 123 to rotate the trigger 30 to the open position and hooking of the catches on the caliper 114.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Pulmonology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Emergency Lowering Means (AREA)

Abstract

The apparatus (10) has a rigid metallic body (12) provided with a straight trunking (13) for housing a rope, and a securing system (15) to swivel between a closed position and an open position releasing access to the trunking for fitting or removal of the rope. A control device moves the system from the closed position to the open position and vice-versa. The device has gripping cleats (22, 23) actuated simultaneously to stabilize and lock the system in the open position to allow access to the trunking. The cleats are arranged side by side on a transverse pivot-pin (25) integral to the system.

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention concerne un appareil de sécurité antichute et de blocage sur corde, comportant :

  • un corps rigide pourvu d'une goulotte de logement de la corde,
  • un système de retenue destiné à pivoter entre une position de fermeture pour coopérer avec la corde en la bloquant au fond de la goulotte en cas de chute, et une position d'ouverture libérant l'accès à la goulotte pour l'installation ou le retrait de la corde,
  • et un dispositif de commande pour déplacer ledit système de retenue de la position de fermeture vers la position d'ouverture, et vice-versa.
The invention relates to a rope fall arrest and safety device comprising:
  • a rigid body provided with a chute housing the rope,
  • a retaining system for pivoting between a closed position to cooperate with the rope by blocking it at the bottom of the chute in case of a fall, and an open position releasing access to the chute for installation or removal rope,
  • and a controller for moving said restraint system from the closed position to the open position, and vice versa.

Etat de la techniqueState of the art

Le document FR2600898 se rapporte à un bloqueur sur corde, dans lequel le système de retenue est formé par une gâchette pivotante destinée à coopérer dans la position fermée avec la corde. Cette dernière peut coulisser dans la goulotte du corps dans le sens de la montée, ou au contraire être bloquée par la gâchette en cas de chute de l'utilisateur. La gâchette est dotée d'un levier de préhension pouvant être actionné pour l'entraîner vers la position d'ouverture libérant l'accès à la goulotte, et permettant l'introduction de la corde dans la goulotte. Le levier est pourvu d'une manette facilitant la manoeuvre d'ouverture et de refermeture. Lors de l'utilisation normale du bloqueur, certaines manipulations de la corde peuvent exercer une certaine pression ou frottement de la corde sur le levier, susceptible de causer une ouverture involontaire de la gâchette, au détriment de la sécurité.The document FR2600898 relates to a rope stopper, wherein the restraint system is formed by a pivoting trigger for cooperating in the closed position with the rope. The latter can slide in the chute of the body in the direction of the rise, or on the contrary be blocked by the trigger in case of fall of the user. The trigger is provided with a gripping lever that can be actuated to drive it to the open position allowing access to the chute, and allowing the introduction of the rope into the chute. The lever is provided with a lever facilitating opening and closing maneuver. During normal use of the blocker, certain manipulations of the rope may exert some pressure or friction the rope on the lever, which may cause the trigger to open involuntarily, to the detriment of safety.

Le document EP 2911870 mentionne un bloqueur à came pour l'assurage sur corde fixe, ledit bloqueur comprenant un bras de liaison à boutonnière articulé entre le pivot de la came et le corps à goulotte. Un double verrou qui est solidaire du corps, est configuré pour maintenir les deux extrémités opposées du pivot dans des alvéoles alignés jouant le rôle de paliers. La présence du double verrou et du bras de liaison permet d'insérer et de dégager rapidement le pivot dans les alvéoles.The document EP 2911870 mentions a cam lock for anchoring on a fixed rope, said blocker comprising a buttonhole connecting arm articulated between the pivot of the cam and the chute body. A double latch that is integral with the body is configured to maintain the two opposite ends of the pivot in aligned cells acting as bearings. The presence of the double lock and the connecting arm allows to quickly insert and release the pivot in the cells.

Objet de l'inventionObject of the invention

Le but de l'invention consiste à sécuriser le fonctionnement d'un appareil antichute et de blocage sur corde en empêchant toute ouverture intempestive de son système de retenue.The object of the invention is to secure the operation of a fall arrest and rope lock device by preventing inadvertent opening of its restraint system.

L'appareil de sécurité selon l'invention est caractérisé en ce que le dispositif de commande comprend une paire de taquets de préhension aptes à être actionnés simultanément pour stabiliser et verrouiller le système de retenue dans la position d'ouverture permettant l'accès à la goulotte, les deux taquets de préhension étant disposés côte à côte sur un axe transversal solidaire du système de retenue pivotant.The security apparatus according to the invention is characterized in that the control device comprises a pair of gripping lugs adapted to be actuated simultaneously to stabilize and lock the retaining system in the open position allowing access to the chute, the two gripping cleats being arranged side by side on a transverse axis integral with the pivoting retaining system.

Selon un mode de réalisation préférentiel, une lame fixe en matière plastique est interposée avantageusement entre les deux taquets de préhension pour empêcher que l'appui sur l'un des taquets ne provoque l'entraînement de l'autre taquet.According to a preferred embodiment, a fixed plastic blade is advantageously interposed between the two gripping cleats to prevent the support on one of the cleats does drive the other cleat.

Selon une caractéristique de l'invention, chaque taquet de préhension est équipé d'un bossage destiné à venir en butée contre un arrêt du corps lorsque les deux taquets ne sont pas actionnés simultanément par pivotement dans le sens d'ouverture.According to a characteristic of the invention, each gripping cleat is equipped with a boss intended to abut against a stop of the body when the two cleats are not actuated simultaneously by pivoting in the opening direction.

Un tel dispositif de commande à double taquet peut être utilisé dans tout appareil de sécurité sur corde, qu'il soit du type antichute à galet ou bloqueur à came.Such a double-cleat control device can be used in any rope safety device, whether it is of the roller fall arrest or cam lock type.

Description sommaire des dessinsBrief description of the drawings

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de deux modes de réalisation de l'invention donnés à titre d'exemples non limitatifs et représentés aux dessins annexés, dans lesquels :

  • la figure 1 est une vue en perspective d'un appareil antichute équipé du système de retenue sécurisé selon l'invention, lequel est représenté en position de fermeture sans mise en place de la corde ;
  • la figure 2 montre une vue identique de la figure 1, en position stable d'ouverture du système de retenue avec les deux taquets accrochés à l'étrier du corps ;
  • la figure 3 est une vue en élévation partiellement en coupe de la figure 1 après mise en place de la corde ;
  • la figure 4 représente une vue en coupe de la figure 3 ;
  • la figure 4A représente une vue similaire de la figure 2, avec un taquet ouvert et l'autre fermé ;
  • les figures 5 et 6 sont des vues en perspective d'une variante de réalisation constituée par un bloqueur à poignée, lequel est équipé du système de retenue sécurisé selon l'invention, illustré respectivement en position d'ouverture sans corde et de fermeture avec corde ;
  • la figure 7 est une vue en coupe selon la ligne B-B du bloqueur de la figure 6.
Other advantages and features will emerge more clearly from the following description of two embodiments of the invention given as non-restrictive examples and represented in the accompanying drawings, in which:
  • the figure 1 is a perspective view of a fall arrest apparatus equipped with the secure restraint system according to the invention, which is shown in the closed position without positioning the rope;
  • the figure 2 shows an identical view of the figure 1 , in stable position of opening of the restraint system with the two cleats hooked to the stirrup of the body;
  • the figure 3 is an elevational view partially in section of the figure 1 after placing the rope;
  • the figure 4 represents a sectional view of the figure 3 ;
  • the Figure 4A represents a similar view of the figure 2 , with one cleat open and the other closed;
  • the figures 5 and 6 are perspective views of an alternative embodiment constituted by a handle blocker, which is equipped with the secure restraint according to the invention, respectively illustrated in the open position without rope and closure with rope;
  • the figure 7 is a sectional view along the line BB of the blocker of the figure 6 .

Description d'un mode particulier de réalisationDescription of a particular embodiment

En référence aux figures 1 à 4 et 4A, un appareil anti-chute 10 est utilisé pour la sécurité d'une personne se déplaçant le long d'une corde 11 fixe d'assurance. L'appareil anti-chute 10 est relié au harnais, et suit la progression de la personne sans engendrer de blocage lors de l'utilisation normale de montée ou de descente. La personne est alors libre de se déplacer sans aucune intervention manuelle de déblocage de l'appareil anti-chute 10.With reference to Figures 1 to 4 and 4A , a fall arrest apparatus 10 is used for the safety of a person moving along a fixed insurance rope 11. The fall arrest device 10 is connected to the harness, and follows the progress of the person without causing blockage during normal use of ascent or descent. The person is then free to move without any manual intervention of unlocking the fall arrest device 10.

L' appareil anti-chute 10 comporte un corps 12 rigide, de préférence métallique, ayant d'un côté, une goulotte 13 rectiligne de section en U pour le passage de la corde 11, et de l'autre côté, un étrier 14 pour le montage d'un système de retenue 15 à galet 16 bloqueur.The fall arrest apparatus 10 comprises a rigid body 12, preferably a metal body, having on one side a rectilinear chute 13 of U section for the passage of the rope 11, and on the other side, a stirrup 14 for the mounting of a retaining system 15 roller 16 blocker.

Le système de retenue 15 à galet 16 bloqueur est apte à occuper soit une position active de blocage en cas de chute, soit une position inactive de déblocage autorisant la progression de la personne le long de la corde 11 dans le sens de la montée ou dans le sens opposé lors d'une descente contrôlée. Le galet 16 en forme de roue cylindrique, est porté par un dispositif support à double bras 17 pivotant articulé autour d'un premier axe 18 du corps 12. La surface périphérique du galet 16 est munie de picots inclinés, et un ressort de torsion (non représenté) est enfilé sur le premier axe 18 pour solliciter l'ensemble bras support 17 et galet 16 en direction du fond de la goulotte 13. Le galet 16 est monté à rotation libre sur un deuxième axe 19 des bras 17, et l'intérieur du galet 16 renferme un accouplement centrifuge (non représenté) destiné à occuper une position débrayée ou une position embrayé en fonction de la vitesse ou de l'accélération du galet 16 bloqueur. Lors de l'utilisation normale de montée ou de descente, l'accouplement centrifuge se trouve en position débrayée, et le galet 16 suit la progression de la personne sans intervention manuelle de déblocage du système de retenue. En cas de chute, le blocage intervient automatiquement lors du passage de l'accouplement vers la position embrayée, entraînant une forte pression du galet contre la corde 12 qui stoppe la chute. Le principe et le fonctionnement d'un tel système de retenue avec accouplement centrifuge, sont décrits à titre d'exemples dans les documents EP 1525903 et EP 1380320 .The retaining system 15 with a roller 16 blocker is capable of occupying either an active blocking position in the event of a fall, or an inactive unlocking position allowing the person to progress along the rope 11 in the upward direction or in the opposite direction during a controlled descent. The roller 16 in the form of a cylindrical wheel is carried by a pivoting double-arm support device articulated about a first axis 18 of the body 12. The peripheral surface of the roller 16 is provided with inclined pins, and a torsion spring ( not shown) is threaded on the first axis 18 to urge the support arm assembly 17 and roller 16 towards the bottom of the chute 13. The roller 16 is mounted for free rotation on a second axis 19 of the arms 17, and the inside of the roller 16 encloses a centrifugal coupling (not shown) intended to occupy a disengaged position or a position engaged as a function of the speed or acceleration of the roller 16 blocker. In the normal use of ascent or descent, the centrifugal coupling is in the disengaged position, and the roller 16 follows the progression of the person without manual intervention to release the restraint system. In the event of a fall, the blocking occurs automatically during the passage of the coupling towards the engaged position, causing a strong pressure of the roller against the rope 12 which stops the fall. The principle and the operation of such a retaining system with centrifugal coupling are described as examples in the documents EP 1525903 and EP 1380320 .

Le corps comporte de plus un balancier 20 en forme de U renversé monté à basculement autour d'un troisième axe 21 à l'extérieur du corps 12. Le balancier 20 est destiné à être relié au baudrier de l'utilisateur, soit directement par une longe de liaison, soit par l'intermédiaire d'un amortisseur de choc.The body further comprises a reverse U-shaped rocker 20 mounted to tilt around a third axis 21 outside the body 12. The rocker 20 is intended to be connected to the user's shoulder belt, either directly by a connecting lanyard, either via a shock absorber.

Pour l'installation de la corde 11 dans la goulotte 13, il est nécessaire d'éloigner au maximum le système de retenue 15 à galet 16 hors de la goulotte 13 en faisant pivoter l'ensemble bras 17 et galet 16 dans le sens inverse des aiguilles d'une montre, et à l'encontre de la force de rappel du ressort de torsion.For the installation of the rope 11 in the chute 13, it is necessary to move the roller retainer 15 away from the chute 13 as much as possible by rotating the arm assembly 17 and the roller 16 in the opposite direction of the clockwise, and against the restoring force of the torsion spring.

Le système de retenue 15 est équipé à cet effet d'une paire de taquets 22, 23 de préhension, lesquels sont formés par des leviers de structures sensiblement identiques, et disposés côte à côte avec interposition d'une lame 24 fixe en matière plastique. Les deux taquets 22, 23 sont indépendants l'un de l'autre, et articulés autour d'un axe 25 transversal commun aux deux bras 17. A chaque taquet 22, 23 est associé un ressort de rappel destiné à le solliciter en position de travail (figures 1 à 3).The retaining system 15 is equipped for this purpose with a pair of cleats 22, 23 gripping, which are formed by levers substantially identical structures, and arranged side by side with the interposition of a fixed blade 24 of plastic. The two cleats 22, 23 are independent of one another, and articulated around a transverse axis common to the two arms 17. Each cleat 22, 23 is associated with a return spring intended to urge it into position. job ( Figures 1 to 3 ).

Chaque taquet 22, 23 est équipé d'un bossage 26 situé à l'opposé de l'axe 25, et destiné à venir en butée contre un arrêt 27 de l'étrier 14, lorsque les deux taquets ne sont pas ouverts simultanément vers la position écartée d'accès à la goulotte 13.Each cleat 22, 23 is equipped with a boss 26 situated opposite the axis 25, and intended to abut against a stop 27 of the stirrup 14, when the two cleats are not open simultaneously towards the remote access position to the chute 13.

La lame 24 intercalaire, de faible épaisseur, a pour fonction d'éviter que l'entraînement ou la préhension de l'un des taquets 22 dans le sens d'ouverture, entraîne l'autre taquet 23 jusqu'à la position écartée.The blade 24 spacer, thin, has the function of preventing the drive or gripping of one of the latches 22 in the opening direction, causes the other cleat 23 to the position away.

Le fonctionnement du dispositif anti-chute 10 à double taquet 22, 23 selon les figures 1 à 4A, est le suivant :The operation of the double-cleat anti-fall device 22, 23 according to the Figures 1 to 4A , is the next :

Sur la figure 1, l'appareil est dans l'état de repos, et le galet 16 du système de retenue 15 est engagé dans la goulotte 13, rendant impossible l'accès pour la mise en place de la corde. Les deux taquets 22, 23 se trouvent à l'intérieur du corps 12.On the figure 1 , the apparatus is in the idle state, and the roller 16 of the retaining system 15 is engaged in the chute 13, making access impossible for the establishment of the rope. The two cleats 22, 23 are located inside the body 12.

Pour l'accès à l'intérieur de la goulotte 13, il est nécessaire d'actionner simultanément les deux taquets 22, 23 pour faire pivoter l'ensemble bras 17 et galet 16 dans le sens inverse des aiguilles d'une montre jusqu'à une position écartée de la figure 2. Dans cette position stable, les deux taquets 22, 23 restent accrochés mécaniquement à l'arrêt 27 de l'étrier 14, ce qui permet d'introduire la corde 11 dans la goulotte 13.For access to the interior of the chute 13, it is necessary to simultaneously actuate the two tabs 22, 23 to pivot the arm assembly 17 and roller 16 counterclockwise to a position removed from the figure 2 . In this stable position, the two cleats 22, 23 remain mechanically hooked to the stop 27 of the stirrup 14, which makes it possible to introduce the rope 11 into the chute 13.

Sur la figure 3, après avoir introduit la corde 11, il suffit d'appuyer sur les deux ou sur l'un des deux taquets 22, 23, pour libérer l'accrochage, et ramener l'ensemble bras 17 et galet 16 dans le sens des aiguilles d'une montre sous l'action du ressort de rappel. Les picots du galet 16 viennent au contact de la corde 11 sans exercer d'effet de blocage. L'appareil se trouve dans l'état d'utilisation sur corde.On the figure 3 after having introduced the rope 11, simply press the two or one of the two tabs 22, 23, to release the attachment, and bring the arm assembly 17 and roller 16 in the direction of the needles d a watch under the action of the return spring. The pins of the roller 16 come into contact with the rope 11 without exerting blocking effect. The device is in the Rope Use state.

Sur la figure 4A, on remarque qu'une tentative d'ouverture involontaire ou volontaire de l'un des taquets 22, provoque la venue en butée du bossage 26 de l'autre taquet 23 contre l'arrêt 27. L'accès à la goulotte 13 est alors rendu impossible, car les deux taquets ne peuvent être accrochés à l'arrêt 27 comme dans la figure 2.On the Figure 4A , it is noted that an attempt involuntary or involuntary opening of one of the cleats 22, causes the abutment of the boss 26 of the other cleat 23 against the stop 27. The access to the chute 13 is then made impossible, because the two cleats can not be hooked to stop 27 as in the figure 2 .

La présence des deux taquets 22, 23 permet de sécuriser le fonctionnement de l'appareil en empêchant l'ouverture intempestive et l'accès à la corde.The presence of the two tabs 22, 23 secures the operation of the device by preventing inadvertent opening and access to the rope.

En référence aux figures 5 à 7, le système de retenue 115 peut être utilisé pour un dispositif bloqueur 100. Un tel appareil comporte un corps 112 avec goulotte 113, et une gâchette 30 monté à pivotement autour d'un axe 31 d'un étrier 114. Une poignée 32 de préhension est fixée au corps 112, et la surface venant en contact avec la corde est munie de picots. Un ressort de rappel sollicite la gâchette 30 vers le fond de la goulotte 113.With reference to Figures 5 to 7 , the retention system 115 can be used for a blocking device 100. Such an apparatus comprises a body 112 with chute 113, and a trigger 30 pivotally mounted about an axis 31 of a stirrup 114. A handle 32 gripping is fixed to the body 112, and the surface coming into contact with the rope is provided with pins. A return spring urges the trigger 30 towards the bottom of the chute 113.

Les deux taquets 122, 123 du système de retenue sont articulés à la gâchette 30, et sont séparés l'un de l'autre par une lame 124 intercalaire en matière plastique.The two tabs 122, 123 of the retaining system are articulated to the trigger 30, and are separated from each other by a blade 124 spacer plastic.

L'ouverture de la gâchette 30 est sécurisée et nécessite l'actionnement simultané des deux taquets 122, 123 pour faire pivoter la gâchette 30 vers la position d'ouverture et accrochage des taquets sur l'étrier 114.The opening of the trigger 30 is secured and requires the simultaneous actuation of the two tabs 122, 123 to rotate the trigger 30 to the open position and hooking of the catches on the caliper 114.

Claims (5)

Appareil de sécurité (10, 100) anti-chute et de blocage sur corde, comportant : - un corps (12, 112) rigide pourvu d'une goulotte (13, 113) de logement de la corde (11), - un système de retenue (15, 115) destiné à pivoter entre une position de fermeture pour coopérer avec la corde (11) en la bloquant au fond de la goulotte en cas de chute, et une position d'ouverture libérant l'accès à la goulotte pour l'installation ou le retrait de la corde, - et un dispositif de commande pour déplacer ledit système de retenue de la position de fermeture vers la position d'ouverture, et vice-versa, caractérisé en ce que le dispositif de commande comprend une paire de taquets de préhension (22, 23 ; 122, 123) aptes à être actionnés simultanément pour stabiliser et verrouiller le système de retenue (15, 115) dans la position d'ouverture permettant l'accès à la goulotte (13, 113), les deux taquets de préhension (22, 23 ; 122, 123) étant disposés côte à côte sur un axe (25) transversal solidaire du système de retenue (15, 115) pivotant..Safety apparatus (10, 100) for preventing and dropping on a rope, comprising: a rigid body (12, 112) provided with a chute (13, 113) for accommodating the rope (11), - a retaining system (15, 115) for pivoting between a closed position to cooperate with the rope (11) by blocking it at the bottom of the chute in case of a fall, and an open position releasing access to the chute for installing or removing the rope, and a control device for moving said restraint system from the closed position to the open position, and vice versa, characterized in that the control device comprises a pair of grippers (22, 23; 122, 123) operable simultaneously to stabilize and lock the retainer (15, 115) in the open position allowing access to the chute (13, 113), the two gripping cleats (22, 23; 122, 123) being arranged side by side on a transverse axis (25) integral with the pivoting retaining system (15, 115). Appareil de sécurité selon la revendication 1, caractérisé en ce qu'une lame (24, 124) fixe en matière plastique est interposée entre les deux taquets de préhension (22, 23 ; 122, 123) pour empêcher que l'appui sur l'un des taquets ne provoque l'entraînement de l'autre taquet.Safety apparatus according to claim 1, characterized in that a fixed plastic blade (24, 124) is interposed between the two gripping tabs (22, 23, 122, 123) to prevent the pressing on the one of the cleats does not cause the other cleat to be driven. Appareil de sécurité selon la revendication 1 ou 2, caractérisé en ce que chaque taquet de préhension (22, 23 ; 122, 123) est équipé d'un bossage (26) destiné à venir en butée contre un arrêt (27) du corps lorsque les deux taquets ne sont pas actionnés simultanément dans le sens d'ouverture, rendant impossible le verrouillage en position d'ouverture et l'accès à la goulotte (13, 113).Safety device according to claim 1 or 2, characterized in that each gripping tab (22, 23; 122, 123) is equipped with a boss (26) intended to abut against a stop (27) of the body when the two catches are not actuated simultaneously in the opening direction, making it is impossible to lock in the open position and access to the chute (13, 113). Appareil de sécurité selon l'une des revendications 1 à 3, caractérisé en ce que le système de retenue (15) d'un appareil antichute comporte un galet (16) bloqueur porté par un dispositif support à double bras (17) pivotant, l'axe (25) commun des deux taquets (22, 23) étant solidaire du double bras.Safety device according to one of claims 1 to 3, characterized in that the restraint system (15) of a fall arrest device comprises a stopper (16) carried by a pivotable double-arm support device (17), common axis (25) of the two cleats (22, 23) being integral with the double arm. Appareil de sécurité selon l'une des revendications 1 à 3, caractérisé en ce que le système de retenue (115) d'un dispositif bloqueur (100) est équipé d'une gâchette (30) pivotante, les deux taquets (122, 123) étant articulés à la gâchette pour être accrochés au corps (112) en position d'ouverture.Safety device according to one of claims 1 to 3, characterized in that the retaining system (115) of a locking device (100) is equipped with a trigger (30) pivoting, the two cleats (122, 123 ) being articulated to the trigger to be hooked to the body (112) in the open position.
EP13354045.0A 2013-01-15 2013-12-20 Fall-arresting and rope-blocking safety apparatus Active EP2754465B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13354045T PL2754465T3 (en) 2013-01-15 2013-12-20 Fall-arresting and rope-blocking safety apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1300075A FR3000899B1 (en) 2013-01-15 2013-01-15 SAFETY APPARATUS FOR FAILURE AND BLOCKING ON ROPES

Publications (2)

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EP2754465A1 true EP2754465A1 (en) 2014-07-16
EP2754465B1 EP2754465B1 (en) 2019-08-21

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US (1) US9192792B2 (en)
EP (1) EP2754465B1 (en)
CN (1) CN103920254B (en)
ES (1) ES2751120T3 (en)
FR (1) FR3000899B1 (en)
PL (1) PL2754465T3 (en)
TW (1) TWI621461B (en)

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Also Published As

Publication number Publication date
FR3000899A1 (en) 2014-07-18
ES2751120T3 (en) 2020-03-30
CN103920254A (en) 2014-07-16
CN103920254B (en) 2019-09-10
PL2754465T3 (en) 2020-03-31
TWI621461B (en) 2018-04-21
EP2754465B1 (en) 2019-08-21
US20140196989A1 (en) 2014-07-17
FR3000899B1 (en) 2015-06-26
TW201427742A (en) 2014-07-16
US9192792B2 (en) 2015-11-24

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