EP2735341B1 - Safety apparatus on a rope with locking under load - Google Patents

Safety apparatus on a rope with locking under load Download PDF

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Publication number
EP2735341B1
EP2735341B1 EP13354042.7A EP13354042A EP2735341B1 EP 2735341 B1 EP2735341 B1 EP 2735341B1 EP 13354042 A EP13354042 A EP 13354042A EP 2735341 B1 EP2735341 B1 EP 2735341B1
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EP
European Patent Office
Prior art keywords
flange
plate
roller
spindle
safety device
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EP13354042.7A
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German (de)
French (fr)
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EP2735341A3 (en
EP2735341A2 (en
Inventor
Pierre Olivier Chabod
Christophe Quillard
Alain Maurice
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Zedel SAS
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Zedel SAS
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Publication of EP2735341A2 publication Critical patent/EP2735341A2/en
Publication of EP2735341A3 publication Critical patent/EP2735341A3/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
    • 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

Definitions

  • a mooring carabiner crosses in the closed position the second hollow shaft, and an aligned orifice of the first flange. The second flange is thus openable without disconnecting from the mooring. It is thus possible to install the rope once the pulley moored.
  • a pin or locking pawl is able to lock the second flange in the closed position, but nothing prevents Unlock the pin and open the second flange when the pulley is under load.
  • EP 803268 and EP2407413 relate to pulleys each having a pivotable flange, and a built-in blocker.
  • the working flange remains locked in the closed position by the mooring carabiner. It is impossible to open this flange without removing the carabiner, and disconnect from the mooring.
  • the document FR 2438388 describes a self-locking chute of the rope, with a relative movement of the movable flange to cause controlled braking during a descent.
  • the distance of the mobile flange remains possible in the event of removal of the carabiner.
  • An ascender with integrated pulley is known from the document US 2012/0241700 A .
  • Unintentional actuation of the lock control member makes it impossible to open the second flange, which remains locked in the closed position when the device is under load.
  • the retaining notch is in the form of a hook in which the end of the first axis engages following the movement of the second flange towards the closed position.
  • a ramp is arranged at the entrance of the notch to cause with the lock a double locking of the second flange in the closed position, and in the state of load on the roller.
  • the second mobile flange When the device is not under load, the second mobile flange can be unlocked by rotating the control member in the unlocking direction of the lock.
  • the displacement of the second flange in the opening direction causes at the beginning of the stroke, a reaction of the ramp on the first axis, resulting in a slight translational movement of the first flange upwards until catching the game.
  • the notch is then released and escapes the first axis by allowing the total opening of the second flange.
  • the roller can be fixed, or mounted to free rotation on the first axis.
  • the roller may also be constituted by unidirectionally rotating free wheel and blocking in the opposite direction.
  • the invention applies to any type of safety devices on rope and openable flange to be locked under load, including a descender, a pulley with or without built-in blocker.
  • a rope safety device designated by the general reference 10, comprises a first flange 11, and a second movable flange 12 for occupying a closed position and an open position.
  • the first flange 11 is semi-fixed, and is provided with a first axis 13 on which is mounted a roller 14 provided with an annular groove 15 for guiding the rope C.
  • the roller 14 is mounted for free rotation on the first axis 13 with the interposition of a bearing 16 self-lubricating or a ball bearing, the assembly constituting an openable pulley. The load is applied to the roller 14 via the rope C when the second flange 12 is in the closed position.
  • the roller 14 may also be fixed or be constituted by a freewheel with unidirectional rotation and lock in the opposite direction.
  • the invention applies to any type of safety devices on rope and flanged opening, including a descender, a pulley, etc ...
  • a second axis 17 which is hollow for the passage of a carabiner M attachment to be attached to a mooring.
  • the second hollow axis 17 is housed with a clearance J in an orifice 18 of the first flange 11, and can pivot when driving the second flange 12 to the open position.
  • the diameter of the second hollow axis 17 is smaller than that of the orifice 18 to define said clearance J in translation of the first flange 11 in the direction of the height.
  • the transverse spacing between the two flanges 11, 12 corresponding substantially to the length of the second axis 17. The presence of the game J makes the first flange 11 semi-fixed.
  • the second axis 17 can be full.
  • the inner face of the second movable flange 12 is provided with a hook-shaped retaining notch 19, into which the end of the first axis 13 can engage when the second flange 12 moves towards the closed position.
  • This notch 19 is provided with a ramp 20 causing locking in the closed position when the roller 14 or pulley is under load.
  • a latch 21 pivoting on an axis 22 is biased by a return spring (not shown) to a locking position to positively lock the second flange 12 in the closed position.
  • the front face of the second flange 12 is equipped with a control member 23 coupled to the latch 21 to ensure its release allowing the opening of the second flange 12 pivoting when the device is no longer under load.
  • Each flange 11, 12 has a hole 24, 25 in the lower part, said holes being aligned in the closed position and allowing the attachment of an additional carabiner to lock the device in the closed position.
  • the device is not under load and it is then possible to unlock the second flange 12 by rotating the control member 23 in the unlocking direction indicated by the arrow F2.
  • the latch 21 is unlocked, and the displacement of the second flange 12 in the opening direction causes, at the start of the stroke, a reaction of the ramp 20 on the first axis 13 causing a slight translational movement of the first flange 11 upwards ( arrow F3, figure 5 ) until the catch J is caught.
  • the notch 19 is released from the maintenance of the first axis 13.
  • the manual opening movement of the second flange 12 can be continued after releasing the control member 23.
  • the ramp 20 is no longer in contact with the first axis 13, and the first flange 11 returns to the initial position d support on the second axis 17 hollow.
  • the maximum open position of the second flange 12 allows the winding of the rope C around the roller 14, the device remaining connected to the docking.
  • the flanged apparatus previously described in Figures 1 to 7 can be equipped with a built-in blocker of a well-known type, including the document EP 803268 .
  • the control member 23 is formed by a pivoting handle in the opposite direction of clockwise. This control member is protected under a cover 26.
  • the second flange 12 is similar to that of the Figures 1 to 7 and cooperates with the same hollow second axis 17 so as to present the clearance J.
  • the second flange 12 also has the retaining notch with the ramp 20 and the lock 21, but opens in the opposite direction to that of the apparatus of the Figures 1 to 7 .
  • the concept of the invention can also be applied to a descender or other rope belay device, having a working flange, which is to ensure accidental opening under load.

Description

Domaine technique de l'inventionTechnical field of the invention

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

  • un premier flasque et un deuxième flasque mobile, délimitant un espace transversal dans lequel est agencé un galet monté sur un premier axe solidaire du premier flasque,
  • et des moyens d'articulation du deuxième flasque comprenant un deuxième axe autorisant un mouvement de pivotement entre une position fermée emprisonnant la corde dans l'espace transversal, et une position ouverte pour la mise en place de la corde sur le galet.
The invention relates to a rope safety device comprising:
  • a first flange and a second movable flange, delimiting a transverse space in which is arranged a roller mounted on a first integral axis of the first flange,
  • and articulation means of the second flange comprising a second axis allowing a pivoting movement between a closed position trapping the rope in the transverse space, and an open position for the establishment of the rope on the roller.

Etat de la techniqueState of the art

Une poulie bloqueur PRO TRAXION commercialisée par la demanderesse, sert en escalade ou les travaux en hauteur pour le hissage d'une charge lourde. Elle comporte une poulie montée à rotation libre sur un premier axe d'un flasque fixe, et un flasque mobile articulé autour d'un deuxième axe tubulaire décalé du premier axe. Un mousqueton d'amarrage traverse en position fermée le deuxième axe creux, et un orifice aligné du premier flasque. Le deuxième flasque est ainsi ouvrable sans se déconnecter de l'amarrage. On peut ainsi installer la corde une fois la poulie amarrée. Un téton ou cliquet de blocage est apte à verrouiller le deuxième flasque en position fermée, mais rien n'empêche de déverrouiller le téton et d'ouvrir le deuxième flasque lorsque la poulie est sous charge.A PRO TRAXION blocking pulley marketed by the plaintiff, serves climbing or work at height for hoisting a heavy load. It comprises a pulley mounted for free rotation on a first axis of a fixed flange, and a movable flange hinged about a second tubular axis offset from the first axis. A mooring carabiner crosses in the closed position the second hollow shaft, and an aligned orifice of the first flange. The second flange is thus openable without disconnecting from the mooring. It is thus possible to install the rope once the pulley moored. A pin or locking pawl is able to lock the second flange in the closed position, but nothing prevents Unlock the pin and open the second flange when the pulley is under load.

Les documents EP 803268 et EP2407413 se rapportent à des poulies ayant chacune un flasque ouvrable pivotant, et un bloqueur intégré. Le flasque ouvrable reste verrouillé en position fermée par le mousqueton d'amarrage. Il est impossible d'ouvrir ce flasque sans retirer le mousqueton, et se déconnecter de l'amarrage.The documents EP 803268 and EP2407413 relate to pulleys each having a pivotable flange, and a built-in blocker. The working flange remains locked in the closed position by the mooring carabiner. It is impossible to open this flange without removing the carabiner, and disconnect from the mooring.

Le document FR 2438388 décrit un descendeur à autoblocage de la corde, avec un mouvement relatif du flasque mobile pour provoquer le freinage contrôlé lors d'une descente. L'écartement du flasque mobile reste possible en cas de retrait du mousqueton. Un ascendeur avec poulie intégrée est connu du document US 2012/0241700 A .The document FR 2438388 describes a self-locking chute of the rope, with a relative movement of the movable flange to cause controlled braking during a descent. The distance of the mobile flange remains possible in the event of removal of the carabiner. An ascender with integrated pulley is known from the document US 2012/0241700 A .

Objet de l'inventionObject of the invention

L'objet de l'invention consiste à réaliser un appareil de sécurité sur corde, ayant un flasque ouvrable dont on veut sécuriser l'ouverture accidentelle sous charge. L'appareil anti-chute selon l'invention est caractérisé en ce que :

  • le premier flasque présente du jeu par positionnement du deuxième axe dans un orifice du premier fiasque, le diamètre extérieur du deuxième axe étant inférieur à celui de l'orifice pour définir ledit jeu, lequel est configuré pour permettre une translation du premier flasque entre une première position où le galet n'est pas sous charge, et une deuxième position où le galet est sous charge,
et le deuxième flasque mobile est équipé :
  • d'une encoche de retenue coopérant avec le premier axe pour le verrouillage de l'appareil dans la position fermée lorsque le galet est sous charge,
  • et d'un verrou actionné par un organe de commande pour assurer son déblocage en autorisant l'ouverture du deuxième flasque lorsque l'appareil n'est plus sous charge.
The object of the invention is to provide a rope safety device having a working flange which is to ensure accidental opening under load. The anti-fall device according to the invention is characterized in that:
  • the first flange has play by positioning the second axis in an orifice of the first flap, the outer diameter of the second axis being less than that of the orifice to define said set, which is configured to allow a translation of the first flange between a first position where the roller is not under load, and a second position where the roller is under load,
and the second mobile flange is equipped with:
  • a retaining notch cooperating with the first axis for locking the apparatus in the closed position when the roller is under load,
  • and a lock actuated by a control member to ensure its release by allowing the opening of the second flange when the device is no longer under load.

Tout actionnement involontaire de l'organe de commande du verrou rend impossible l'ouverture du deuxième flasque, lequel reste verrouillé en position fermée lorsque l'appareil est sous charge.Unintentional actuation of the lock control member makes it impossible to open the second flange, which remains locked in the closed position when the device is under load.

Selon un mode de réalisation préférentiel, l'encoche de retenue est en forme de crochet dans lequel s'engage l'extrémité du premier axe suite au déplacement du deuxième flasque vers la position fermée. Une rampe est agencée à l'entrée de l'encoche pour provoquer avec le verrou un double verrouillage du deuxième flasque en position fermée, et dans l'état de charge sur le galet.According to a preferred embodiment, the retaining notch is in the form of a hook in which the end of the first axis engages following the movement of the second flange towards the closed position. A ramp is arranged at the entrance of the notch to cause with the lock a double locking of the second flange in the closed position, and in the state of load on the roller.

Lorsque l'appareil n'est pas sous charge, le deuxième flasque mobile peut être déverrouillé en faisant pivoter l'organe de commande dans le sens de déverrouillage du verrou. Le déplacement du deuxième flasque dans le sens d'ouverture provoque en début de course, une réaction de la rampe sur le premier axe, entraînant un léger mouvement de translation du premier flasque vers le haut jusqu'au rattrapage du jeu. L'encoche est alors libérée et échappe au premier axe en permettant l'ouverture totale du deuxième flasque.When the device is not under load, the second mobile flange can be unlocked by rotating the control member in the unlocking direction of the lock. The displacement of the second flange in the opening direction causes at the beginning of the stroke, a reaction of the ramp on the first axis, resulting in a slight translational movement of the first flange upwards until catching the game. The notch is then released and escapes the first axis by allowing the total opening of the second flange.

Le galet peut être fixe, ou monté à rotation libre sur le premier axe. Le galet peut aussi être constitué en roue libre à rotation unidirectionnelle et à blocage dans le sens inverse.The roller can be fixed, or mounted to free rotation on the first axis. The roller may also be constituted by unidirectionally rotating free wheel and blocking in the opposite direction.

L'invention s'applique à tout type d'appareils de sécurité sur corde et à flasque ouvrable devant être verrouillé sous charge, notamment un descendeur, une poulie avec ou sans bloqueur intégré.The invention applies to any type of safety devices on rope and openable flange to be locked under load, including a descender, a pulley with or without built-in blocker.

Description sommaire des dessinsBrief description of the drawings

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode de réalisation de l'invention donné à titre d'exemple non limitatif et représenté aux dessins annexés, dans lesquels :

  • la figure 1 est une vue en perspective de l'appareil de sécurité selon l'invention, représenté en position fermée verrouillée, et dans l'état sous charge ;
  • la figure 2 montre une vue en élévation de l'appareil de la figure 1, le mousqueton d'amarrage étant enlevé ;
  • la figure 3 est une vue en coupe selon la ligne 3-3 de la figure 2, montrant le jeu J entre le deuxième axe creux et le premier flasque ;
  • les figures 4 et 5 sont des vues identiques des figures 2 et 3, l'appareil n'étant plus sous charge, et l'organe de commande ayant débloqué le verrou permettant en début d'ouverture manuelle du deuxième flasque, une réaction de la rampe sur le premier axe entraînant le rattrapage du jeu J du premier flasque;
  • les figures 6 et 7 sont des vues identiques des figures 4 et 5 lors de l'ouverture poursuivie du deuxième flasque, et l'échappement du premier axe de l'encoche de retenue. ;
  • la figure 8 montre une variante de réalisation de la figure 1, avec une ouverture inversée ;
  • la figure 9 montre une vue en élévation de l'appareil de la figure 8, le mousqueton d'amarrage étant enlevé ;
  • la figure 10 est une vue en coupe selon la ligne 9-9 de la figure 8, montrant le jeu J entre le deuxième axe creux et le premier flasque.
Other advantages and features will emerge more clearly from the following description of an embodiment of the invention given by way of nonlimiting example and represented in the accompanying drawings, in which:
  • the figure 1 is a perspective view of the security apparatus according to the invention, shown in closed locked position, and in the under load state;
  • the figure 2 shows an elevation view of the device from the figure 1 the mooring carabiner being removed;
  • the figure 3 is a sectional view along line 3-3 of the figure 2 , showing the clearance J between the second hollow axis and the first flange;
  • the Figures 4 and 5 are identical views of Figures 2 and 3 , the device is no longer under load, and the control member having unlocked the latch allowing at the beginning of manual opening of the second flange, a reaction of the ramp on the first axis causing the catching clearance J of the first flange ;
  • the Figures 6 and 7 are identical views of Figures 4 and 5 during the continued opening of the second flange, and the exhaust of the first axis of the retaining notch. ;
  • the figure 8 shows an alternative embodiment of the figure 1 with an inverted opening;
  • the figure 9 shows an elevation view of the device from the figure 8 the mooring carabiner being removed;
  • the figure 10 is a sectional view along the line 9-9 of the figure 8 , showing the clearance J between the second hollow axis and the first flange.

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

En référence aux figures, un appareil de sécurité sur corde, désigné par le repère général 10, comporte un premier flasque 11, et un deuxième flasque 12 mobile destiné à occuper une position fermée et une position ouverte. Le premier flasque 11 est semi-fixe, et est doté d'un premier axe 13 sur lequel est monté un galet 14 muni d'une gorge 15 annulaire pour le guidage de la corde C. Le galet 14 est monté à rotation libre sur le premier axe 13 avec interposition d'un coussinet 16 autolubrifiant ou d'un roulement à billes, l'ensemble constituant une poulie ouvrable. La charge s'applique sur le galet 14 par l'intermédiaire de la corde C lorsque le deuxième flasque 12 est en position fermée.Referring to the figures, a rope safety device, designated by the general reference 10, comprises a first flange 11, and a second movable flange 12 for occupying a closed position and an open position. The first flange 11 is semi-fixed, and is provided with a first axis 13 on which is mounted a roller 14 provided with an annular groove 15 for guiding the rope C. The roller 14 is mounted for free rotation on the first axis 13 with the interposition of a bearing 16 self-lubricating or a ball bearing, the assembly constituting an openable pulley. The load is applied to the roller 14 via the rope C when the second flange 12 is in the closed position.

Le galet 14 peut aussi être fixe ou être constitué par une roue libre à rotation unidirectionnelle et à blocage dans le sens inverse. L'invention s'applique à tout type d'appareils de sécurité sur corde et à flasque ouvrable, notamment un descendeur, une poulie, etc...The roller 14 may also be fixed or be constituted by a freewheel with unidirectional rotation and lock in the opposite direction. The invention applies to any type of safety devices on rope and flanged opening, including a descender, a pulley, etc ...

A la partie supérieure du deuxième flasque 12 mobile est fixé un deuxième axe 17, lequel est creux pour le passage d'un mousqueton M d'attache destiné à être accroché à un amarrage. Le deuxième axe 17 creux est logé avec un jeu J dans un orifice 18 du premier flasque 11, et peut pivoter lors de l'entraînement du deuxième flasque 12 vers la position ouverte. Le diamètre du deuxième axe 17 creux est inférieur à celui de l'orifice 18 pour définir ledit jeu J en translation du premier flasque 11 dans le sens de la hauteur. L'écartement transversal entre les deux flasques 11, 12 correspondant sensiblement à la longueur du deuxième axe 17. La présence du jeu J rend le premier flasque 11 semi-fixe.At the upper part of the second movable flange 12 is fixed a second axis 17, which is hollow for the passage of a carabiner M attachment to be attached to a mooring. The second hollow axis 17 is housed with a clearance J in an orifice 18 of the first flange 11, and can pivot when driving the second flange 12 to the open position. The diameter of the second hollow axis 17 is smaller than that of the orifice 18 to define said clearance J in translation of the first flange 11 in the direction of the height. The transverse spacing between the two flanges 11, 12 corresponding substantially to the length of the second axis 17. The presence of the game J makes the first flange 11 semi-fixed.

Selon une variante, le deuxième axe 17 peut être plein.According to one variant, the second axis 17 can be full.

La face interne du deuxième flasque 12 mobile est munie d'une encoche 19 de retenue en forme de crochet, dans laquelle peut s'engager l'extrémité du premier axe 13 lorsque le deuxième flasque 12 se déplace vers la position fermée. Cette encoche 19 est pourvue d'une rampe 20 provoquant le verrouillage dans la position fermée lorsque le galet 14 ou poulie est sous charge. Un verrou 21 pivotant sur un axe 22 est sollicité par un ressort de rappel (non représenté) vers une position de blocage pour verrouiller positivement le deuxième flasque 12 dans la position fermée.The inner face of the second movable flange 12 is provided with a hook-shaped retaining notch 19, into which the end of the first axis 13 can engage when the second flange 12 moves towards the closed position. This notch 19 is provided with a ramp 20 causing locking in the closed position when the roller 14 or pulley is under load. A latch 21 pivoting on an axis 22 is biased by a return spring (not shown) to a locking position to positively lock the second flange 12 in the closed position.

La face avant du deuxième flasque 12 est équipée d'un organe de commande 23 accouplé au verrou 21 pour assurer son déblocage permettant l'ouverture du deuxième flasque 12 pivotant lorsque l'appareil n'est plus sous charge.The front face of the second flange 12 is equipped with a control member 23 coupled to the latch 21 to ensure its release allowing the opening of the second flange 12 pivoting when the device is no longer under load.

Chaque flasque 11, 12 comporte un trou 24, 25 dans la partie inférieure, lesdits trous étant alignés dans la position fermée et autorisant l'accrochage d'un mousqueton additionnel pour cadenasser l'appareil dans la position fermée.Each flange 11, 12 has a hole 24, 25 in the lower part, said holes being aligned in the closed position and allowing the attachment of an additional carabiner to lock the device in the closed position.

Le fonctionnement de l'appareil de sécurité 10 à poulie ouvrable selon l'invention est le suivant :

  • Sur les figures 1 à 3, l'appareil est sous charge, et le deuxième flasque se trouve en position fermée, verrouillé à la fois par le verrou 21 et la rampe 20, et par l'application de la charge sur le galet 14. Le premier flasque 11 est tiré vers le bas (flèche F1, figure 3), et prend appui sur le sommet du deuxième axe 17. Le jeu J se trouve entre le bas de l'orifice 18 du premier flasque 11, et le deuxième axe 17 creux. Le premier axe 13 se trouve au fond de l'encoche 19, et bloque le deuxième flasque 12 en position fermée. Tout actionnement involontaire de l'organe de commande 23 du verrou 21 rend impossible l'ouverture du deuxième flasque 12 lorsque l'appareil est sous charge.
The operation of the safety apparatus 10 with a working pulley according to the invention is as follows:
  • On the Figures 1 to 3 , the apparatus is under load, and the second flange is in the closed position, locked by both the latch 21 and the ramp 20, and by the application of the load on the roller 14. The first flange 11 is drawn down (arrow F1, figure 3 ), and bears on the top of the second axis 17. The clearance J is located between the bottom of the orifice 18 of the first flange 11, and the second axis 17 hollow. The first axis 13 is at the bottom of the notch 19, and blocks the second flange 12 in the closed position. Any actuation involuntary control member 23 of the lock 21 makes it impossible to open the second flange 12 when the device is under load.

En référence aux figures 4 et 5, l'appareil n'est pas sous charge et il est alors possible de déverrouiller le deuxième flasque 12 en faisant pivoter l'organe de commande 23 dans le sens de déverrouillage indiquée par la flèche F2. Le verrou 21 est débloqué, et le déplacement du deuxième flasque 12 dans le sens d'ouverture provoque en début de course, une réaction de la rampe 20 sur le premier axe 13 entraînant un léger mouvement de translation du premier flasque 11 vers le haut (flèche F3, figure 5) jusqu'au rattrapage du jeu J. L'encoche 19 est libérée du maintien du premier axe 13.With reference to Figures 4 and 5 , the device is not under load and it is then possible to unlock the second flange 12 by rotating the control member 23 in the unlocking direction indicated by the arrow F2. The latch 21 is unlocked, and the displacement of the second flange 12 in the opening direction causes, at the start of the stroke, a reaction of the ramp 20 on the first axis 13 causing a slight translational movement of the first flange 11 upwards ( arrow F3, figure 5 ) until the catch J is caught. The notch 19 is released from the maintenance of the first axis 13.

Sur les figures 6 et 7, le mouvement d'ouverture manuelle du deuxième flasque 12 peut être poursuivi après avoir relâché l'organe de commande 23. La rampe 20 n'est plus en contact avec le premier axe 13, et le premier flasque 11 revient dans la position initiale d'appui sur le deuxième axe 17 creux. La position d'ouverture maximum du deuxième flasque 12 permet l'enroulement de la corde C autour du galet 14, l'appareil restant connecté à l'amarrage.On the Figures 6 and 7 , the manual opening movement of the second flange 12 can be continued after releasing the control member 23. The ramp 20 is no longer in contact with the first axis 13, and the first flange 11 returns to the initial position d support on the second axis 17 hollow. The maximum open position of the second flange 12 allows the winding of the rope C around the roller 14, the device remaining connected to the docking.

L'appareil à flasque ouvrable décrit précédemment aux figures 1 à 7 peut être équipé d'un bloqueur intégré d'un type bien connu, notamment du document EP 803268 .The flanged apparatus previously described in Figures 1 to 7 can be equipped with a built-in blocker of a well-known type, including the document EP 803268 .

Sur la variante des figures 8 à 10, les mêmes numéros de référence seront utilisés pour désigner des pièces similaires. L'organe de commande 23 est formé par une manette pivotante dans le sens inverse des aiguilles d'une montre. Cet organe de commande est protégé sous un cache 26. Le deuxième flasque 12 est similaire à celui des figures 1 à 7, et coopère avec le même deuxième axe 17 creux de manière à présenter le jeu J. Le deuxième flasque 12 comporte également l'encoche de retenue avec la rampe 20 et le verrou 21, mais s'ouvre dans le sens inverse à celui de l'appareil des figures 1 à 7.On the variant of Figures 8 to 10 the same reference numbers will be used to designate similar parts. The control member 23 is formed by a pivoting handle in the opposite direction of clockwise. This control member is protected under a cover 26. The second flange 12 is similar to that of the Figures 1 to 7 and cooperates with the same hollow second axis 17 so as to present the clearance J. The second flange 12 also has the retaining notch with the ramp 20 and the lock 21, but opens in the opposite direction to that of the apparatus of the Figures 1 to 7 .

Le concept de l'invention peut aussi être appliqué à un descendeur ou autre appareil d'assurage sur corde, ayant un flasque ouvrable, dont on veut sécuriser l'ouverture accidentelle sous charge.The concept of the invention can also be applied to a descender or other rope belay device, having a working flange, which is to ensure accidental opening under load.

Claims (9)

  1. A safety device on a rope, comprising:
    - a first flange-plate (11) and a movable second flange-plate (12) delineating a transverse space in which a roller (14) is arranged fitted on a first spindle (13) integral to the first flange-plate (11),
    - and articulation means of the second flange-plate (12) comprising a second spindle (17) allowing a swivelling movement between a closed position clamping the rope (C) in captive manner in the transverse space, and an open position for fitting the rope (C) on the roller (14),
    the first flange-plate (11) presenting clearance (J) by positioning of the second spindle (17) in an aperture (18) of the first flange-plate (11), the external diameter of the second spindle (17) being smaller than that of the aperture (18) to define said clearance (J),
    the movable second flange-plate (12) being equipped:
    - with a securing notch (19) operating in conjunction with the first spindle (13) to block the device in the closed position when the roller (14) is under load,
    - and with a latch (21) actuated by control means (23) to perform unlatching of the latter enabling opening of the second flange-plate (12) when the device is no longer under load.
  2. The safety device according to claim 1, characterized in that the second spindle (17) of the second flange-plate (12) is hollow.
  3. The safety device according to claim 1, characterized in that the securing notch (19) is in the form of a hook in which the end of the first spindle (13) engages following movement of the second flange-plate (12) to the closed position.
  4. The safety device according to claim 3, characterized in that the notch (19) is provided with a ramp (20) operating in conjunction with the latch (21) to cause double blocking of the second flange-plate (12) in the closed position, and in the loaded state on the roller (14).
  5. The safety device according to claim 4, characterized in that the ramp (20) is arranged to move the first flange-plate (11) until said clearance (J) is taken up when the device is no longer under load, said movement of the first flange-plate (11) being derived from a manual opening movement of the second flange-plate (12), after the latch (21) has been unlatched by the control means (23).
  6. The safety device according to one of the foregoing claims, characterized in that the roller (14) is mounted fixed on the first spindle (13) of the first flange-plate (11).
  7. The safety device according to one of claims 1 to 5, characterized in that the roller (14) is in the form of a rotary pulley mounted idle on the first spindle (13).
  8. The safety device according to claim 7, characterized in that the pulley is associated with a clamping trigger designed to clamp the rope against the roller (14).
  9. The safety device according to one of claims 1 to 5, characterized in that the roller (14) is formed by a free-wheel with unidirectional rotation and blocking in the opposite direction.
EP13354042.7A 2012-11-16 2013-11-06 Safety apparatus on a rope with locking under load Active EP2735341B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1203082A FR2998182B1 (en) 2012-11-16 2012-11-16 LOADED LOCKED ROPE SECURITY APPARATUS

Publications (3)

Publication Number Publication Date
EP2735341A2 EP2735341A2 (en) 2014-05-28
EP2735341A3 EP2735341A3 (en) 2014-06-04
EP2735341B1 true EP2735341B1 (en) 2017-06-28

Family

ID=47750760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13354042.7A Active EP2735341B1 (en) 2012-11-16 2013-11-06 Safety apparatus on a rope with locking under load

Country Status (6)

Country Link
US (1) US9126062B2 (en)
EP (1) EP2735341B1 (en)
CN (1) CN103816649B (en)
ES (1) ES2635166T3 (en)
FR (1) FR2998182B1 (en)
TW (1) TWI600848B (en)

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US9623269B2 (en) * 2013-03-14 2017-04-18 Black Diamond Equipment, Ltd. Systems for assisted braking belay with a cam-clutch mechanism
USD746125S1 (en) * 2013-05-10 2015-12-29 D B Industries, Llc Fixed side plate of a rope grab
USD764258S1 (en) * 2013-05-10 2016-08-23 D B Industries, Llc Housing of a rope grab
USD739212S1 (en) 2013-05-10 2015-09-22 D B Industries, Llc Housing of a rope grab
FR3011475B1 (en) * 2013-10-07 2016-03-04 Simond Ets DESCENDOR-INSURER AUTOBLOQUANT
FR3015963B1 (en) * 2013-12-27 2016-01-22 Zedel IMPROVED MOLDING DEVICE
FR3032354A1 (en) * 2015-02-11 2016-08-12 Zedel DESCENDOR INSURER DEVICE ON DEMULTIPLICATION ROPE AND ANTI-PANIC BLOCKAGE
USD767974S1 (en) * 2015-04-10 2016-10-04 Marine Town Inc. Fender lock
USD764261S1 (en) * 2015-05-06 2016-08-23 Zedel Climbing apparatus
USD827418S1 (en) * 2015-12-07 2018-09-04 Daniel Austin Rope line anchor with hook
USD804293S1 (en) * 2016-05-17 2017-12-05 Zedel Climbing apparatus
USD804292S1 (en) * 2016-05-17 2017-12-05 Zedel Climbing apparatus
USD815513S1 (en) * 2016-05-17 2018-04-17 Zedel Climbing apparatus
USD819429S1 (en) * 2016-08-17 2018-06-05 Checkmate Lifting & Safety Ltd. Rope vise tensioner
US10035028B1 (en) * 2017-01-04 2018-07-31 Mallory Safety+Supply Emergency descender device
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USD948996S1 (en) * 2019-11-13 2022-04-19 Shurtech Brands, Llc Hook
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Also Published As

Publication number Publication date
US20140138191A1 (en) 2014-05-22
US9126062B2 (en) 2015-09-08
FR2998182B1 (en) 2015-06-26
FR2998182A1 (en) 2014-05-23
CN103816649A (en) 2014-05-28
TW201420916A (en) 2014-06-01
EP2735341A3 (en) 2014-06-04
TWI600848B (en) 2017-10-01
CN103816649B (en) 2017-10-24
ES2635166T3 (en) 2017-10-02
EP2735341A2 (en) 2014-05-28

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