EP1329242A1 - Self-locking descending device on tensioned rope - Google Patents
Self-locking descending device on tensioned rope Download PDFInfo
- 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
- Authority
- 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.)
- Withdrawn
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Classifications
-
- 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
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Lowering Means (AREA)
Abstract
Description
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,
- 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,
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.
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.
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.
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.
- 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.
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
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
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
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
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
Le fonctionnement du descendeur 10 selon l'invention est le suivant :The operation of the
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
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
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
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
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
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
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0200735 | 2002-01-22 | ||
FR0200735 | 2002-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1329242A1 true EP1329242A1 (en) | 2003-07-23 |
Family
ID=8871366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03354005A Withdrawn EP1329242A1 (en) | 2002-01-22 | 2003-01-22 | Self-locking descending device on tensioned rope |
Country Status (1)
Country | Link |
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EP (1) | EP1329242A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3814210A (en) * | 1973-02-05 | 1974-06-04 | Bear Mfg Corp | Rope climbing device |
FR2304564A1 (en) * | 1975-03-21 | 1976-10-15 | Bugat Francis | Load raising and lowering device - has locking plate pivoted to body to close gap between fixed and movable jaws |
US4576248A (en) * | 1984-05-02 | 1986-03-18 | Dan Marom | Rescue and glider device |
US4596314A (en) | 1983-07-22 | 1986-06-24 | Boris Rogelja | Descender |
EP0303388A1 (en) | 1987-08-12 | 1989-02-15 | Boris Rogelja | Descender for abseiling |
EP0694317A2 (en) * | 1994-06-28 | 1996-01-31 | Gemini Plastics Machinery Ltd | Manually operable braking device for a line |
US5850893A (en) | 1995-11-28 | 1998-12-22 | Zedel | Self-locking descender for a rope with an operating lever |
US6029777A (en) | 1996-03-13 | 2000-02-29 | Rogelja; Boris | Descender |
-
2003
- 2003-01-22 EP EP03354005A patent/EP1329242A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3814210A (en) * | 1973-02-05 | 1974-06-04 | Bear Mfg Corp | Rope climbing device |
FR2304564A1 (en) * | 1975-03-21 | 1976-10-15 | Bugat Francis | Load raising and lowering device - has locking plate pivoted to body to close gap between fixed and movable jaws |
US4596314A (en) | 1983-07-22 | 1986-06-24 | Boris Rogelja | Descender |
US4576248A (en) * | 1984-05-02 | 1986-03-18 | Dan Marom | Rescue and glider device |
EP0303388A1 (en) | 1987-08-12 | 1989-02-15 | Boris Rogelja | Descender for abseiling |
EP0694317A2 (en) * | 1994-06-28 | 1996-01-31 | Gemini Plastics Machinery Ltd | Manually operable braking device for a line |
US5850893A (en) | 1995-11-28 | 1998-12-22 | Zedel | Self-locking descender for a rope with an operating lever |
US6029777A (en) | 1996-03-13 | 2000-02-29 | Rogelja; Boris | Descender |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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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