EP1329242A1 - Self-locking descending device on tensioned rope - Google Patents

Self-locking descending device on tensioned rope Download PDF

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Publication number
EP1329242A1
EP1329242A1 EP03354005A EP03354005A EP1329242A1 EP 1329242 A1 EP1329242 A1 EP 1329242A1 EP 03354005 A EP03354005 A EP 03354005A EP 03354005 A EP03354005 A EP 03354005A EP 1329242 A1 EP1329242 A1 EP 1329242A1
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EP
European Patent Office
Prior art keywords
flange
rope
self
descender
sheaves
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.)
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Application number
EP03354005A
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German (de)
French (fr)
Inventor
Alain Maurice
Paul Petzl
Pascal Ollivier
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Zedel SAS
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Zedel SAS
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Filing date
Publication date
Application filed by Zedel SAS filed Critical Zedel SAS
Publication of EP1329242A1 publication Critical patent/EP1329242A1/en
Withdrawn legal-status Critical Current

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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

  • Such a descender can be used in various fields, in particular sailing, mountaineering, speleology, rope work, etc.
  • Self-locking descenders on rope comprise in a conventional manner a pair of flanges, one of which is movable, a pair of sheaves for the passage in S rope, an operating handle, and a locking system rope.
  • the hole for the carabiner is generally located in the lower bet on the side of the operating handle.
  • rope blockers with a passage chute rope, and a locking cam, which can be moved aside for a mounting on a stretched rope.
  • This type of blocker does not offer the function of descender, and does not allow the tool to be released under tension.
  • the invention aims to remedy these drawbacks, and to achieve a descender that can be mounted on a stretched rope, and allowing when descent to stop safely with an automatic lock, and set off again in a braked and controlled descent.
  • this object is achieved by the fact that the two sheaves are worn in the middle part of the first flange, which has at one end an operating handle located opposite at least a first orifice of attachment, and when placing the descender on a tight rope, the first opening is at the top of the first flange, and vertical alignment with the passage interval of the rope.
  • the two sheaves are fixed to the first flange by means of screws cooperating with shoulder nuts, of which one serves as the axis of rotation of the second movable flange, and the other of which constitutes a stop for receiving a recess when the second flange arrives at closed position.
  • the second flange has at least one hole for come next to the first hole in the closed position for hanging a attachment carabiner.
  • the two sheaves include friction surfaces rectilinear and parallel to each other to delimit said rope passage interval.
  • a self-locking descender 10 on a taut rope includes a first fixed flange 12 extended at the bottom by a handle of operation 13, and a second flange 14 movable in limited rotation in a plane substantially parallel to the first flange 12.
  • the rope used is made up by a rope 11, but could also be a halyard or a cable.
  • the first flange 12 carries two sheaves 15, 16 fixed by screws 17, 18 and separated one from the other by an interval 19 intended for the passage of the rope 11.
  • the width of the interval 19 is slightly greater than the diameter of the rope 11.
  • the ends of the screws 17, 18 cooperate with nuts 20, 21 with shoulders, of which one 20 serves as an axis of rotation and for holding the second movable flange 14, and the other 21 of which constitutes a stop for receiving the recess 22 when the second flange 14 arrives in the closed position ( Figure 4).
  • the first flange 12 is equipped with two orifices 23, 24, one of which 23 constitutes a traction point when loading the descender.
  • the second flange 14 also has two holes 25, 26 intended to come opposite the orifices 23, 24 for attaching the first flange 12, so as to allow the attachment of two carabiners 27, 28.
  • the carabiner 27 is used for hanging, while the other carabiner 28 auxiliary is used to secure the descender.
  • the opening 23 of the first flange 12 is located at the top of the descender, and substantially in vertical alignment with the gap 19 when setting place the device on the stretched rope 11 ( Figure 1).
  • the other port 24 is located angularly offset between port 23 and sheave 15. The distance between port 24 and the axis of the sheave 16 is less than that separating the latter from the orifice 23.
  • the two sheaves 15, 16 have friction surfaces 31 rectilinear and parallel to delimit the interval 19 for passage of the rope 11.
  • the descender 10 can be placed on a rope 11 vertical stretched. Just rotate the second flange 14 to the position spread to be able to freely engage the rope 11 in the interval 19. This fitting on the stretched rope 11 is carried out without problem, since the gap 19 is aligned vertically with the hole 23 located at the part upper flange 12.
  • FIG. 2 illustrates a descent movement on a taut rope, in which the load on the rope is important.
  • the weight of the user attached to the carabiner 27 requests a rotational movement of the descender 10 in the direction of arrow F1.
  • the orifice 23 is angularly offset from the cord 11 in causing a torque tending to deform the portion of rope 11 in the interval 19 by creating friction points 29, 30 on the sheaves 15, 16.
  • the user acts on the handle 13 in the direction of the arrow F2, so as to reduce the friction surface of the rope 11 on the sheaves 15, 16.
  • Figures 3 and 4 show the state of the descender with a minimum load on the rope 11. In this case, it is not necessary to act on the handle 13 to go down. Just manually regulate the rope tension by holding the strand downstream as in a classic descender.
  • the second carabiner 28 does not intervene not, since the user is hooked on the first carabiner 27.
  • the second carabiner 28 can be replaced by a finger mobile or any other means of restraint. the second carabiner 28

Abstract

The descent clamp (10), comprising fixed (12) and pivoting (14) flanges, a pair of pulleys (15, 16) with a gap (19) between them for the cable (11), and fastenings for attaching to the user's harness, has the pulleys located in the middle portion of the first flange (12), which has a handle (13) opposite a first fastening hole (23). When the clamp is fitted on a tensioned cable the hole (23) is located at the top and in vertical alignment with the gap (19).

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention concerne un descendeur autobloquant sur filin ou corde, comprenant :

  • un premier flasque fixe, et un deuxième flasque mobile en rotation limitée dans un plan sensiblement parallèle au premier flasque entre une position fermée de service, et une position écartée de mise en place sur la corde,
  • une paire de réas séparés l'un de l'autre par un intervalle de passage de la corde,
et des moyens d'attache destinés à être reliés au baudrier de l'utilisateur.The invention relates to a self-locking descender on rope or rope, comprising:
  • a first fixed flange, and a second flange movable in limited rotation in a plane substantially parallel to the first flange between a closed service position, and a spaced-apart position for positioning on the rope,
  • a pair of sheaves separated from each other by a rope passage interval,
and attachment means intended to be connected to the user's harness.

Un tel descendeur peut être utilisé dans divers domaines, notamment la voile, l'alpinisme, la spéléologie, les travaux sur corde, etc...Such a descender can be used in various fields, in particular sailing, mountaineering, speleology, rope work, etc.

État de la techniqueState of the art

Les descendeurs autobloquants sur corde comportent d'une manière classique une paire de flasques dont l'un est mobile, une paire de réas pour le passage en S de la corde, une poignée d'actionnement , et un système de blocage de la corde. L'orifice pour le mousqueton d'attache est généralement disposé dans la parie inférieure du côté de la poignée d'actionnement. De tels descendeurs sont décrits dans les documents EP 303388, US 5850893, US 4596314 et 6029777. Self-locking descenders on rope comprise in a conventional manner a pair of flanges, one of which is movable, a pair of sheaves for the passage in S rope, an operating handle, and a locking system rope. The hole for the carabiner is generally located in the lower bet on the side of the operating handle. Such descenders are described in documents EP 303388, US 5850893, US 4596314 and 6029777.

Le passage en S de la corde sur ces descendeurs connus rend leur montage impossible sur des filins tendus, c'est à dire soumis à des tensions ou charges importantes sur le brin aval. L'absence de mou sur une corde tendue ne permet pas d'enrouler la corde autour des réas.The passage in S of the rope on these known descenders makes their assembly impossible on taut ropes, that is to say subjected to tensions or loads important on the downstream strand. The absence of slack on a stretched rope does not allow no wrapping the rope around the sheaves.

Il existe d'autre part des bloqueurs sur cordes, ayant une goulotte de passage de la corde, et une came de blocage, laquelle peut être écartée pour un montage sur une corde tendue. Ce type de bloqueurs n'offre pas la fonction de descendeur, et ne permet pas le déblocage sous tension de l'outil.There are also rope blockers, with a passage chute rope, and a locking cam, which can be moved aside for a mounting on a stretched rope. This type of blocker does not offer the function of descender, and does not allow the tool to be released under tension.

Objet de l'inventionSubject of the invention

L'invention a pour but de remédier à ces inconvénients, et de réaliser un descendeur pouvant être monté sur une corde tendue, et permettant lors de la descente de s'arrêter en toute sécurité avec un blocage automatique, et de repartir en descente freinée et contrôlée.The invention aims to remedy these drawbacks, and to achieve a descender that can be mounted on a stretched rope, and allowing when descent to stop safely with an automatic lock, and set off again in a braked and controlled descent.

Selon l'invention, ce but est atteint par le fait que les deux réas sont portés dans la partie médiane du premier flasque, lequel comporte à l'une des extrémités une poignée de manoeuvre située à l'opposé d'au moins un premier orifice d'attache, et que lors de la mise en place du descendeur sur une corde tendue, le premier orifice se trouve à la partie supérieure du premier flasque, et en alignement vertical avec l'intervalle de passage de la corde.According to the invention, this object is achieved by the fact that the two sheaves are worn in the middle part of the first flange, which has at one end an operating handle located opposite at least a first orifice of attachment, and when placing the descender on a tight rope, the first opening is at the top of the first flange, and vertical alignment with the passage interval of the rope.

Selon un mode de réalisation préférentiel, les deux réas sont fixés sur le premier flasque au moyen de vis coopérant avec des écrous à épaulement, dont l'un sert d'axe de rotation du deuxième flasque mobile, et dont l'autre constitue une butée de réception d'un évidement lorsque le deuxième flasque arrive en position fermée. Le deuxième flasque est doté d'au moins un trou destiné à venir en regard du premier orifice en position fermée pour l'accrochage d'un mousqueton d'attache.According to a preferred embodiment, the two sheaves are fixed to the first flange by means of screws cooperating with shoulder nuts, of which one serves as the axis of rotation of the second movable flange, and the other of which constitutes a stop for receiving a recess when the second flange arrives at closed position. The second flange has at least one hole for come next to the first hole in the closed position for hanging a attachment carabiner.

Selon une autre caractéristique de l'invention, les deux réas comportent des surfaces de friction rectilignes et parallèles l'une à l'autre pour délimiter ledit intervalle de passage de la corde.According to another characteristic of the invention, the two sheaves include friction surfaces rectilinear and parallel to each other to delimit said rope passage interval.

Description sommaire des dessinsBrief description of the drawings

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de modes particuliers 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 descendeur selon l'invention, lequel est représenté en position de mise en place sur une corde tendue ;
  • la figure 2 montre une vue en coupe du descendeur en service lorsque la tension exercée sur la corde est importante ;
  • la figure 3 représente une vue identique de la figure 2, pour une charge minimum sur la corde ;
  • la figure 4 est une vue en perspective du descendeur dans la position de la figure 3 ;
  • la figure 5 est une en perspective éclatée du descendeur de la figure 1 ;
  • la figure 6 est une vue en coupe du descendeur en position de sécurité.
Other advantages and characteristics will emerge more clearly from the description which follows of particular embodiments of the invention given by way of nonlimiting examples and represented in the appended drawings, in which:
  • Figure 1 is a perspective view of a descender according to the invention, which is shown in the positioning position on a tensioned rope;
  • Figure 2 shows a sectional view of the descender in service when the tension on the rope is high;
  • FIG. 3 represents an identical view to FIG. 2, for a minimum load on the rope;
  • Figure 4 is a perspective view of the descender in the position of Figure 3;
  • Figure 5 is an exploded perspective view of the descender of Figure 1;
  • Figure 6 is a sectional view of the descender in the safety position.

Description de modes particuliers de réalisation.Description of particular embodiments.

Sur les figures, un descendeur 10 autobloquant sur filin tendu, comporte un premier flasque 12 fixe prolongé à la partie inférieure par une poignée de manoeuvre 13, et un deuxième flasque 14 mobile en rotation limitée dans un plan sensiblement parallèle au premier flasque 12. Le filin utilisé est constitué par une corde 11, mais pourrait également être une drisse ou un câble.In the figures, a self-locking descender 10 on a taut rope, includes a first fixed flange 12 extended at the bottom by a handle of operation 13, and a second flange 14 movable in limited rotation in a plane substantially parallel to the first flange 12. The rope used is made up by a rope 11, but could also be a halyard or a cable.

Le premier flasque 12 porte deux réas 15, 16 fixés par des vis 17, 18 et séparés l'un de l'autre par un intervalle 19 destiné au passage de la corde 11. La largeur de l'intervalle 19 est légèrement supérieure au diamètre de la corde 11. Les extrémités des vis 17, 18 coopèrent avec des écrous 20, 21 à épaulement , dont l'un 20 sert d'axe de rotation et de maintien du deuxième flasque 14 mobile, et dont l'autre 21 constitue une butée de réception de l'évidement 22 lorsque le deuxième flasque 14 arrive en position fermée (figure 4).The first flange 12 carries two sheaves 15, 16 fixed by screws 17, 18 and separated one from the other by an interval 19 intended for the passage of the rope 11. The width of the interval 19 is slightly greater than the diameter of the rope 11. The ends of the screws 17, 18 cooperate with nuts 20, 21 with shoulders, of which one 20 serves as an axis of rotation and for holding the second movable flange 14, and the other 21 of which constitutes a stop for receiving the recess 22 when the second flange 14 arrives in the closed position (Figure 4).

A l'opposé de la poignée 13, le premier flasque 12 est équipé de deux orifices 23, 24 , dont l'un 23 constitue un point de traction lors de la mise en charge du descendeur. Le deuxième flasque 14 comporte également deux trous 25, 26 destinés à venir en regard des orifices 23, 24 d'attache du premier flasque 12, de manière à permettre l'accrochage de deux mousquetons 27, 28. Le mousqueton 27 est utilisé pour l'accrochage, tandis que l'autre mousqueton 28 auxiliaire est utilisé pour la mise en sécurité du descendeur.Opposite the handle 13, the first flange 12 is equipped with two orifices 23, 24, one of which 23 constitutes a traction point when loading the descender. The second flange 14 also has two holes 25, 26 intended to come opposite the orifices 23, 24 for attaching the first flange 12, so as to allow the attachment of two carabiners 27, 28. The carabiner 27 is used for hanging, while the other carabiner 28 auxiliary is used to secure the descender.

L'orifice 23 du premier flasque12 est situé à la partie supérieure du descendeur, et sensiblement en alignement vertical avec l'intervalle 19 lors de la mise en place de l'appareil sur la corde 11 tendue (figure 1). L'autre orifice 24 se trouve décalé angulairement entre l'orifice 23 et le réa 15. La distance entre l'orifice 24 et l'axe du réa 16 est inférieure à celle séparant ce dernier de l'orifice 23.The opening 23 of the first flange 12 is located at the top of the descender, and substantially in vertical alignment with the gap 19 when setting place the device on the stretched rope 11 (Figure 1). The other port 24 is located angularly offset between port 23 and sheave 15. The distance between port 24 and the axis of the sheave 16 is less than that separating the latter from the orifice 23.

De préférence, les deux réas 15, 16 comportent des surfaces de friction 31 rectilignes et parallèles pour délimiter l'intervalle 19 de passage de la corde 11.Preferably, the two sheaves 15, 16 have friction surfaces 31 rectilinear and parallel to delimit the interval 19 for passage of the rope 11.

Le fonctionnement du descendeur 10 selon l'invention est le suivant :The operation of the descender 10 according to the invention is as follows:

Sur la figure 1, le descendeur 10 peut se mettre en place sur une corde 11 tendue verticale. Il suffit de faire pivoter le deuxième flasque 14 vers la position écartée pour pouvoir engager librement la corde 11 dans l'intervalle 19. Cette mise en place sur la corde 11 tendue s'effectue sans problème, étant donné que l'intervalle 19 est aligné verticalement avec l'orifice 23 se trouvant à la partie supérieure du flasque 12.In FIG. 1, the descender 10 can be placed on a rope 11 vertical stretched. Just rotate the second flange 14 to the position spread to be able to freely engage the rope 11 in the interval 19. This fitting on the stretched rope 11 is carried out without problem, since the gap 19 is aligned vertically with the hole 23 located at the part upper flange 12.

La figure 2 illustre un mouvement de descente sur corde tendue, dans lequel la charge sur la corde est importante. Le poids de l'utilisateur accroché au mousqueton 27 sollicite un mouvement de rotation du descendeur 10 dans le sens de la flèche F1. L'orifice 23 est décalé angulairement de la corde 11 en provoquant un couple de rotation tendant à déformer la portion de corde 11 dans l'intervalle 19 en créant des points de frottement 29, 30 sur les réas 15, 16. Pour descendre, l'utilisateur agit sur la poignée 13 dans le sens de la flèche F2, de manière à réduire la surface de friction de la corde 11 sur les réas 15, 16.FIG. 2 illustrates a descent movement on a taut rope, in which the load on the rope is important. The weight of the user attached to the carabiner 27 requests a rotational movement of the descender 10 in the direction of arrow F1. The orifice 23 is angularly offset from the cord 11 in causing a torque tending to deform the portion of rope 11 in the interval 19 by creating friction points 29, 30 on the sheaves 15, 16. To descend, the user acts on the handle 13 in the direction of the arrow F2, so as to reduce the friction surface of the rope 11 on the sheaves 15, 16.

Les figures 3 et 4 montrent l'état du descendeur avec une charge minimum sur la corde 11. Dans ce cas, il n'est pas nécessaire d'agir sur la poignée 13 pour descendre. Il suffit de réguler manuellement la tension de corde en tenant le brin aval comme dans un descendeur classique. Figures 3 and 4 show the state of the descender with a minimum load on the rope 11. In this case, it is not necessary to act on the handle 13 to go down. Just manually regulate the rope tension by holding the strand downstream as in a classic descender.

Dans les trois phases précédentes, le deuxième mousqueton 28 n'intervient pas, étant donné que l'utilisateur est accroché sur le premier mousqueton 27.In the three preceding phases, the second carabiner 28 does not intervene not, since the user is hooked on the first carabiner 27.

Sur la figure 6 , on peut rajouter le deuxième mousqueton 28 dans l'orifice 24 et le trou 26 après mise en charge de l'appareil. La présence de ce deuxième mousqueton 28 place le descendeur en position de sécurité en empêchant le retour du flasque 12 dans la position de mise en place de la figure 1, lorsque une action brutale de déblocage (flèche F2) est exercée sur la poignée 13. La corde 11 reste coincée sur les points de frottement 19, 20, et évite de ce fait la chute libre de l'utilisateur,In Figure 6, we can add the second carabiner 28 in the hole 24 and hole 26 after charging of the device. The presence of this second carabiner 28 places the descender in the safety position preventing the return of the flange 12 in the positioning position of FIG. 1, when a brutal release action (arrow F2) is exerted on the handle 13. The rope 11 remains stuck on the friction points 19, 20, and thereby avoids the user free fall,

II est clair que le deuxième mousqueton 28 peut être remplacé par un doigt mobile ou tout autre moyen de retenue. le deuxième mousqueton 28It is clear that the second carabiner 28 can be replaced by a finger mobile or any other means of restraint. the second carabiner 28

Claims (6)

Descendeur autobloquant sur filin ou corde (11), comprenant : un premier flasque (12) fixe, et un deuxième flasque (14) mobile en rotation limitée dans un plan sensiblement parallèle au premier flasque (12) entre une position fermée de service, et une position écartée de mise en place sur la corde (11), une paire de réas (15, 16) séparés l'un de l'autre par un intervalle (19) de passage de la corde (11), et des moyens d'attache destinés à être reliés au baudrier de l'utilisateur,    caractérisé en ce que les deux réas (15, 16) sont portés dans la partie médiane du premier flasque (12), lequel comporte à l'une des extrémités une poignée (13) de manoeuvre située à l'opposé d'au moins un premier orifice (23) d'attache, et que lors de la mise en place du descendeur sur une corde (11) tendue, le premier orifice (23) se trouve à la partie supérieure du premier flasque (12), et en alignement vertical avec l'intervalle (19).Self-locking descender on rope or rope (11), comprising: a first fixed flange (12), and a second flange (14) movable in limited rotation in a plane substantially parallel to the first flange (12) between a closed service position, and a spaced apart position for positioning on the rope (11 ) a pair of sheaves (15, 16) separated from each other by an interval (19) for the passage of the rope (11), and attachment means intended to be connected to the user's harness, characterized in that the two sheaves (15, 16) are carried in the middle part of the first flange (12), which comprises at one of the ends a maneuvering handle (13) situated opposite at least one first orifice (23) for attachment, and that when the descender is placed on a taut rope (11), the first orifice (23) is located at the top of the first flange (12), and in vertical alignment with the interval (19). Descendeur autobloquant selon la revendication 1, caractérisé en ce que les deux réas (15, 16) sont fixés sur le premier flasque (12) au moyen de vis (17, 18) coopérant avec des écrous (20, 21) à épaulement, dont l'un (30) sert d'axe de rotation du deuxième flasque (14) mobile, et dont l'autre (21) constitue une butée de réception d'un évidement (22) lorsque le deuxième flasque (14) arrive en position fermée. Self-locking descender according to claim 1, characterized in that the two sheaves (15, 16) are fixed to the first flange (12) by means of screws (17, 18) cooperating with shoulder nuts (20, 21), of which one (30) serves as the axis of rotation of the second movable flange (14), the other (21) of which constitutes a stop for receiving a recess (22) when the second flange (14) arrives in position closed. Descendeur autobloquant selon la revendication 1 ou 2, caractérisé en ce que le deuxième flasque (14) est doté d'au moins un trou (25) destiné à venir en regard du premier orifice (23) en position fermée pour l'accrochage d'un mousqueton (27) d'attache.Self-locking descender according to claim 1 or 2, characterized in that the second flange (14) is provided with at least one hole (25) intended to come opposite the first orifice (23) in the closed position for the attachment of a carabiner (27) for attachment. Descendeur autobloquant selon la revendication 1, caractérisé en ce que les deux réas (15, 16) comportent des surfaces de friction (31) rectilignes et parallèles l'une à l'autre pour délimiter ledit intervalle (19) de passage de la corde (11).Self-locking descender according to claim 1, characterized in that the two sheaves (15, 16) have friction surfaces (31) rectilinear and parallel to each other to delimit said interval (19) for passage of the rope ( 11). Descendeur autobloquant selon l'une des revendications précédentes, caractérisé en ce que le premier flasque (12) est pourvu d'un deuxième orifice (24) autorisant l'introduction d'un moyen de retenue pour la mise en sécurité de descendeur par coincement de la corde dans l'intervalle (19) entre les réas (15, 16).Self-locking descender according to one of the preceding claims, characterized in that the first flange (12) is provided with a second orifice (24) allowing the introduction of a retaining means for securing the descender by jamming of the rope in the gap (19) between the sheaves (15, 16). Descendeur autobloquant selon la revendication 5, caractérisé en ce que le moyen de retenue est formé par un mousqueton(28) auxiliaire.Self-locking descender according to claim 5, characterized in that the retaining means is formed by an auxiliary carabiner (28).
EP03354005A 2002-01-22 2003-01-22 Self-locking descending device on tensioned rope Withdrawn EP1329242A1 (en)

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FR0200735 2002-01-22
FR0200735 2002-01-22

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EP1716889A2 (en) * 2005-04-27 2006-11-02 Skylotec GmbH Runner for a fall protection device
US7419138B1 (en) 2007-02-23 2008-09-02 Cmc Rescue, Inc. Self-camming pulley
FR2957812A1 (en) * 2010-03-29 2011-09-30 Pascal Jean Dominique Ollivier SELF-LOCKING DESCENDER ON TENSILE FILIN WITH VARIABLE FRICTION POINTS
CN102635678A (en) * 2011-02-12 2012-08-15 刘文辉 Single-pulley device with moveable side plates and manufacturing method of single-pulley device
WO2013063831A1 (en) * 2011-11-02 2013-05-10 He Shaodun Suspended lowering system
WO2013107070A1 (en) * 2012-01-19 2013-07-25 He Shaodun Suspension descent system
GB2522721A (en) * 2014-02-04 2015-08-05 Heightec Group Ltd Fall arrest device
CN105477796A (en) * 2015-11-13 2016-04-13 白云 High-rise-building safe escaping device

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EP1716889A2 (en) * 2005-04-27 2006-11-02 Skylotec GmbH Runner for a fall protection device
EP1716889A3 (en) * 2005-04-27 2007-07-04 Skylotec GmbH Runner for a fall protection device
US7419138B1 (en) 2007-02-23 2008-09-02 Cmc Rescue, Inc. Self-camming pulley
FR2957812A1 (en) * 2010-03-29 2011-09-30 Pascal Jean Dominique Ollivier SELF-LOCKING DESCENDER ON TENSILE FILIN WITH VARIABLE FRICTION POINTS
WO2011124779A1 (en) 2010-03-29 2011-10-13 Pascal Ollivier Descender which self-locks on a tensioned rope with variable points of friction
CN102635678A (en) * 2011-02-12 2012-08-15 刘文辉 Single-pulley device with moveable side plates and manufacturing method of single-pulley device
WO2013063831A1 (en) * 2011-11-02 2013-05-10 He Shaodun Suspended lowering system
WO2013107070A1 (en) * 2012-01-19 2013-07-25 He Shaodun Suspension descent system
GB2522721A (en) * 2014-02-04 2015-08-05 Heightec Group Ltd Fall arrest device
CN105477796A (en) * 2015-11-13 2016-04-13 白云 High-rise-building safe escaping device

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