WO2011101781A1 - Continuous belay line system - Google Patents
Continuous belay line system Download PDFInfo
- Publication number
- WO2011101781A1 WO2011101781A1 PCT/IB2011/050617 IB2011050617W WO2011101781A1 WO 2011101781 A1 WO2011101781 A1 WO 2011101781A1 IB 2011050617 W IB2011050617 W IB 2011050617W WO 2011101781 A1 WO2011101781 A1 WO 2011101781A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cable
- belay
- support
- line system
- pulley
- 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.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/0043—Lifelines, lanyards, and anchors therefore
- A62B35/0056—Horizontal lifelines
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/0043—Lifelines, lanyards, and anchors therefore
- A62B35/0068—Anchors
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/0081—Equipment which can travel along the length of a lifeline, e.g. travelers
- A62B35/0087—Arrangements for bypassing lifeline supports without lanyard disconnection
Definitions
- the present invention relates to a continuous belay line system.
- the belay lines are used to ensure safety in a suspended course (aerial course) such as a course between trees, poles and other structures of an adventure park.
- the lines of belay include a belay cable retained in supports attached to trees or other structures, the user wearing a harness and being connected by a safety rope to the line of belay.
- the user is provided with two cables slidably connected to the line of belay, the user crossing the supports by decoupling a link from the line of belay and passing from the other side of the support, followed by the second, so that a safety rope is always connected to the line of belay.
- certain belay lines include a continuous belay system, the user being connected by a safety rope to a sliding pulley on the belay line from the beginning to the end of the course.
- the belay cable In conventional belay lines, the belay cable is supported by support devices attached to structures or trees along the path, the cable being generally crimped or non-releasably secured or permanent to the support. This requires a good adjustment of the belay cable lengths between the attachment points.
- the continuous belay lines with pulley have the disadvantage of not braking the user following a fall when there is an inclined cable section, with the risk that the user collides with another user or with a support structure or other obstacle in the course.
- an object of the invention is to provide a reliable and reliable continuous belay line system.
- a belay line system including a pulley, a cable support device, and a belay cable supported by the cable support device.
- the pulley includes a channel for receiving the belay cable and a slot connected to the channel to allow passage of a portion of a cable support.
- the cable support device includes a cable guide portion and an attachment portion for securing the cable guide portion to a structure.
- the cable guide portion and the attachment portion are formed of separate parts, locked together for example by means of screws and nuts.
- the guide tube of the cable support device comprises one or more screw holes for housing brake screws to to stop the belay cable in the support tube. The tightening of the brake screw or the braking screws is configured to lock the belay cable non-releasably in the cable support device during normal use of the belay line and to allow sliding of the belay cable with respect to the support device in the event of tensile forces exceeding a certain threshold to avoid damage to the system.
- the cable is slidably mounted in the cable holder and the system further includes a removable cable anchoring device comprising an elastic means and a fastening means, the elastic means being resiliently disposed and operable in compression or in tension between the cable support device and the fastening means.
- the system comprises a bifurcation device comprising at least three branches connected at the ends to the belay cables, the bifurcation device comprising grooves in a zone for meeting the branches configured to allow the passage of the pulley by its slot through the bifurcation device by orienting it according to one of the grooves or the other of the grooves according to the selected direction.
- the system comprises a non-return device comprising a support for attachment to the belay cable, and a stop mechanism comprising a pivoting arm with a free end supported elastically or by means of a weight against the belay line.
- FIG. 1a is a view of a pulley (without a cap) and a support of a continuous belay line system according to one embodiment of the invention, seen in the axis of displacement of the pulley;
- Figure 1b is a perspective view of the non-cap pulley and a portion of the support of a continuous belay line system according to the embodiment of Figure 1a;
- Figure 1c is a view in the axis of movement of the pulley of the device of Figure 1b;
- Figure 2a is a perspective view of the support device according to one embodiment of the invention;
- Figure 2b is a top view of the support device of Figure 2a;
- Figure 2c is a perspective view of an attachment portion of the support device of Figure 2a;
- Figures 2d and 2e are perspective views of a cable guide portion of the support device of Figure 2a;
- Figure 2f is a perspective and sectional view of a cable guide portion of the support
- the belay line system comprises a pulley 4, a cable support device 6 and a belay cable 2 supported by the cable support device 6.
- the pulley 4 comprises wheels 8 mounted in a body 10 comprising a channel 1 1 for the passage of the belay cable 2, a slot 13 connected to the channel 1 1 to allow the passage of an extension 24 of a cable support device, and a fastening portion 12 with a ring, eyelet or hook 14 to allow attachment of a safety rope (not shown) of a user.
- the safety rope is intended to be connected at its other end to a harness of the user.
- the slot 13 has a minimum width F less than the diameter D of the belay cable so that the cable can not leave the channel 1 1 and therefore that the pulley can not be released from the cable. Pulley 4 must therefore be inclined at a certain angle with respect to the support device 6 to be able to pass the support.
- the cable support device 6 comprises a cable guide (or support) portion 16 and an attachment portion 18 for securing the cable support portion 16 to a structure such as a pole. , tree, rock or other natural or constructed ground support structure.
- Support structures are for example arranged at intervals along an adventurous park course or a construction site, the belay cable being suspended between pairs of structures along the course.
- the attachment portion 18 includes a base 20 and an extension 22 extending from the base, the extension being configured to be attached to an extension 24 complementary to the cable guide portion 16.
- the cable guide portion and the fastening portion may be formed of separate pieces that are assembled and locked together, providing a number of advantages.
- Various basic shapes can be provided for attaching the support device to structures of different shapes or materials using the same cable guide parts, reducing manufacturing costs and increasing the versatility of the system.
- the fixing portion 18 can be moved, or changed in case of deformation, wear or damage without changing the belay cable and the cable guide portions 16, or conversely to allow to change the belay cable without
- the attachment portions 18 may be pre-attached to structures prior to the mounting of the belay cable thereby facilitating the assembly of the belay line system and its maintenance.
- the fixing portion 18 may also be configured and selected according to the desired position and angle for the cable guide portion 16.
- the base 20 of the attachment portion may be provided with various fastening means such as of the holes 21a, 21b for the passage of screws, hooks, rivets, straps or other means of attachment.
- the extension 22 of the fixing portion 18 is, in the variant illustrated, in the form of an inclined plate portion 23 interconnected integrally with the base 20 by side walls 25.
- the inner surface of the side walls 25 comprises guide 26, for example in the form of grooves for guiding and insertion of complementary lateral edges 27 of the extension 24 of the cable guide portion 16.
- the guide rails 26 may also have a trapezoidal or flared shape, extension 24 of the cable support device 16 having a complementary shape so that the mounting of an extension in the other has a wedge or wedge effect.
- a screw with a nut 28 can then be inserted through assembly holes 29a, 29b into respective extensions 24, 22 to secure and lock them together.
- One face 30 of one of the extensions 24 in contact with the other extension 22 may advantageously be provided with one or more protuberances or ribs 30a.
- the ribs prevent the fixing nut from rotating on its axis at the time of tightening.
- the compression of a face 30 of an extension against the face of the other extension is obtained by the V-shaped grooves 26 and the complementary shape of the lateral edges 27, as well as the trapezoidal or flared shape of the lateral edges and rails, so that when inserting the extension 24 into the rails 26, the extension 24 is clamped against the inclined plate portion 23 of the extension 22.
- the upper side edges 31 of the cable guide portion 16 may be formed as knife blades so as to improve and facilitate their guidance through the slots 13 of the pulleys. Slots 13 of the pulley bodies may have funnel shapes to facilitate engagement and guidance of the pulley through the support.
- the cable guide portion 16 further comprises a support or guide tube 32 comprising a channel 33 into which the belay cable 2 is inserted, the outer shape of the tube at the ends being able to have a slightly flared shape to facilitate engagement of the wheels 8 of the pulley on the tube.
- the guide tube may advantageously comprise one or more screw holes 34 for brake screws 35 which are screwed into the holes in order to produce a high friction of the belay cable in the support tube.
- the braking screws may be screws having a flat or slightly convex end bearing against the cable. It is also conceivable to have one or more removable plates 70 inside the tube between the screws 35 and the cable to reduce the local pressure exerted by the screw on the cable.
- the removable plate may be in the form of a split ring 70, the plate or the ring being pressed against the belay cable by the screw or screws.
- the split ring may also be resilient to reshape against the surface of the channel 33 when the screw 35 is loosened.
- the tightening of the braking screw can advantageously be configured to lock the belay cable in a non-removable or non-fixed manner in the cable support device during normal use of the belay line, but to allow the sliding of the belay cable relative to the support device in the event of tensile forces exceeding a certain threshold determined to avoid punctual damage to the system.
- a force exceeding the determined threshold may result for example from an accidental fall of a user or another shock on the belay cable resulting from objects falling on the cable (for example in the event of strong wind).
- the sliding of the cable in the event of a shock makes it possible to avoid damage to the cable or to one or more support devices during major shocks, avoiding the replacement of the belay line.
- the support devices may be provided with two screws of size M8 clamped on the cable with a torque of about 6 to 7 Nm, for a braided steel belay cable with a diameter of 10 millimeters .
- the support devices have at least two screws of size M8, see more such as M10, clamped on the cable with a torque between 5 and 10 Nm.
- the braking screws make it possible on the one hand to fix the position of the cable in the support and thus the lengths of the belay cable between the fastening structures, however avoiding the disadvantages of a rigid fastening section such as crimping. cable in a tube.
- the braking screws apply a point pressure on the cable allowing the bending of the cable and a certain rotation due to the torsional forces, thus reducing the fatigue of the material.
- the invention thus makes it possible to avoid the effects of fatigue in the cable material due to the torque and bending forces at the interface between a rigid connection and a free portion of the cable.
- FIG. 3a and 3b another embodiment of a cable support device 6 ' is illustrated, in conjunction with a removable cable anchoring device 36.
- the cable support device 6' may be similar to the cable support device 6 described above except that the belay cable 2 is not stopped in the cable guide tube, but left slidable.
- the removable anchoring device 36 performs the function of stopping the cable 2, with respect to one, two or more supports 6 ', in a removable manner through elastic means 38 to absorb shocks and jolts of tension on the belay cable.
- the sliding and elastic support of the belay cable with respect to one or more supports makes it possible to reduce the shocks for the users in the event of an accidental fall or during a sudden use of the belay line, thus increasing the comfort for the users. users.
- the invention makes it possible to insert elasticity to all the supports of the cable and not only at the end of the cable as is done in certain known systems.
- This absorption of shocks and tension peaks on the belay cable not only improves the comfort of users but reduces the risk of deformation and fatigue of the cable and supports, thus increasing the safety of the belay line system.
- the removable anchoring device may comprise a fixing means 40, 40 'such as a fixing ring, and a resilient means 38, optionally damping, such as a coil spring.
- a fixing means 40, 40 ' such as a fixing ring
- a resilient means 38 optionally damping, such as a coil spring.
- Other forms of springs such as a tube or a stack of rings of materials having elastic properties can be envisaged.
- the resilient means is arranged around the belay cable 2. It is also conceivable to have an elastic means extending on one side along the cable 2 and fixed at its ends to the support device of FIG. one side and the fixing member 40 on the other side. In the latter case, the elastic means are connected to the support, respectively to the fixing member 40 by extension arms configured to pass through the slot of a pulley. In the case where the elastic means are in tubular form or a coil spring as illustrated, the elastic means have an outer diameter configured to allow rolling of the rollers 8 of the pulley on the elastic means.
- the fixing element 40 is in the form of a section of tube stopped on the belay cable, for example by a permanent fixing means (crimping, welding) or by a separable fixing means such as one or more braking screws.
- the braking screws may have a configuration similar to the braking screws of the cable support device 6 described above, or could have another shape.
- braking screws can also be screwed with a torque of a defined amplitude to allow the sliding of the belay cable 2 relative to the fastener. This avoids damage to the supports and the cable during a shock or a very strong traction force on the belay cable.
- a first variant as illustrated in FIG.
- the fastening element 40 is disposed between two cable support devices 6 ', an elastic means 38 being disposed on either side of the fastening element 40 between the fastening element and the respective cable devices 6 '.
- the two springs can work in compression or alternatively the springs can be configured to work in compression and traction depending on the direction of the force applied on the belay cable.
- the two elastic means disposed on either side of a cable support device 6 ', and two fastening elements 40' arranged on either side the cable support device for stopping an end of each spring.
- the two springs can be at least partially compressed in their centered position or can be uncompressed in their centered position and work in tension and compression, or only one of the springs work in compression depending on the direction of the force applied on the belay cable.
- a bifurcation device 42 according to one embodiment of the invention is illustrated.
- the bifurcation device 42 has at least three branches 43a, 43b, 43c. In the example shown, the three branches form a "Y".
- two of the branches 43a, 43b are aligned on the same axis AB, while the third branch 43c is deviated from this axis along an axis AC curved with respect to the axis AB, so as to achieve a bifurcation of the belay line defined by the AB axis.
- the bifurcation device 42 is fixed at each end 41a, 41b, 41c of these branches 43a, 43b, 43c to belay cables belay line system.
- the ends 41a, 41b, 41c of the branches may be provided with holes in which threads are formed which allow connection of the connecting elements to the cable of the continuous line by crimping or fixed by other means to the branches of the bifurcation device.
- the bifurcation device may further comprise a support or base and optionally the belay cables 2, 2 'are attached to a cable support device 6 on a structure 5 at a distance from the bifurcation device to prevent traction forces on the belay cable act directly on the bifurcation device.
- the bifurcation device is provided with grooves 45a, 46a allowing the passage of the pulley through its slot through the bifurcation device.
- a first groove 45a is formed through the bifurcated curved branch 43c, the groove 45a extending parallel to the axis A-B to allow a pulley to slide along the belay cable extending in the A-B direction.
- the user must pivot the pulley so that its slot 13 is aligned with the thickness R of the material between the bottom of the groove and the opposite side of the bifurcation element.
- the groove 46a is disposed substantially parallel to the other axis A-C allowing the user to branch off the axis A-B on the axis A-C of the belay line.
- Grooves or flattenings 45b, 46b may be made on opposite sides of the grooves 45a, 46a to thin the passage section R for the pulley.
- the anti-return device serves to allow the movement of a pulley in one direction along the belay line, but to stop movement in the opposite direction. This can be useful for stopping the fall back of a user on an inclined line or simply to avoid moving in one direction.
- the non-return device according to the illustrated embodiment comprises a support 54 intended to be fixed on the cable of the belay line, and a stop mechanism 56 having a pivoting arm 58 which is resiliently supported at a free end 60 against the belay line - either against the tube 59 of the support 54 as illustrated, or against the belay cable 2 extending from the support.
- the support 54 of the non-return device can be fixed along the cable 2 at any desired position, the support 54 comprising, in the variant illustrated, a tube 59 with a channel 60 in which the belay cable is inserted.
- the tube may include holes 61 for braking screws to lock the non-return device on the belay cable.
- the braking screws may have a configuration identical or similar to the braking screws of the support device 6 described in connection with Figures 2a to 2b, the braking screws being tightened so as to allow sliding of the support 54 on the cable in case shock or force exceeding a predefined threshold. This avoids damage to the cable or the non-return device and also to limit shocks to a user.
- the non-return device can be braked on the belay cable by means other than screws, for example by a resilient clamp or a limited crimping allowing sliding when a predefined force is applied to the device in the direction of the cable axis.
- the non-return device allows a return of the pulley in reverse by manually applying a rotation of the pivot arm 58 by a user.
- the non-return arm 58 may be resiliently supported against the support tube or the belay cable by various elastic means.
- the non-return arm 58 comprises a substantially rigid element pivotally mounted about an axis 63 to an extension 64 of the support 54.
- a spiral spring 65 mounted around the axis 63 has an end 65b which engages the support and the other 65a the pivoting arm 58, the spiral spring being arranged to resiliently rotate the non-return arm 58 towards the belay cable.
- the spring may be disposed between wall portions 67a, 67b of the non-return arm.
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Abstract
Description
Système de ligne d'assurage continue Continuous belay line system
La présente invention concerne un système de ligne d'assurage continue. The present invention relates to a continuous belay line system.
Les lignes d'assurage sont utilisées pour assurer la sécurité dans un parcours suspendu (parcours aérien) tel qu'un parcours entre des arbres, poteaux et d'autres structures d'un parc aventure. Les lignes d'assurage comprennent un câble d'assurage retenu dans des supports fixés aux arbres ou d'autres structures, l'utilisateur portant un harnais et étant connecté par une corde de sécurité à la ligne d'assurage. Dans certains systèmes d'assurage, l'utilisateur est muni de deux câbles connectés de manière coulissante sur la ligne d'assurage, l'utilisateur traversant les supports en découplant un lien de la ligne d'assurage et en le passant de l'autre côté du support, suivi par le second, afin qu'une corde de sécurité soit toujours connectée à la ligne d'assurage. Il y a toutefois le risque que l'utilisateur ne suive pas la procédure correctement et se retrouve avec les deux cordes de sécurité déconnectées de la ligne d'assurage. Afin d'éliminer ce risque, certaines lignes d'assurage comprennent un système d'assurage continu, l'utilisateur étant connecté par une corde de sécurité à une poulie coulissant sur la ligne d'assurage du début jusqu'à la fin du parcours. The belay lines are used to ensure safety in a suspended course (aerial course) such as a course between trees, poles and other structures of an adventure park. The lines of belay include a belay cable retained in supports attached to trees or other structures, the user wearing a harness and being connected by a safety rope to the line of belay. In some belay systems, the user is provided with two cables slidably connected to the line of belay, the user crossing the supports by decoupling a link from the line of belay and passing from the other side of the support, followed by the second, so that a safety rope is always connected to the line of belay. There is however the risk that the user does not follow the procedure correctly and ends up with the two safety ropes disconnected from the belay line. In order to eliminate this risk, certain belay lines include a continuous belay system, the user being connected by a safety rope to a sliding pulley on the belay line from the beginning to the end of the course.
Afin d'effectuer une bifurcation dans le parcours, ces systèmes nécessitent toutefois toujours la déconnexion de la corde de sécurité de la ligne d'assurage. To make a bifurcation in the course, these systems still require the disconnection of the safety rope from the belay line.
Dans les lignes d'assurage conventionnelles, le câble d'assurage est supporté par des dispositifs de support fixés à des structures ou des arbres le long du parcours, le câble étant généralement serti ou fixé de manière non-amovible ou permanent au support. Cela nécessite un bon réglage des longueurs du câble d'assurage entre les points d'attache. In conventional belay lines, the belay cable is supported by support devices attached to structures or trees along the path, the cable being generally crimped or non-releasably secured or permanent to the support. This requires a good adjustment of the belay cable lengths between the attachment points.
La fixation rigide du câble à un support crée une zone susceptible de fatigue due aux forces de cisaillement et aux forces de torsion s'exerçant à l'interface entre le corps fixe et la partie libre du câble. Les oscillations naturelles du câble dues au vent, ou lors du passage des utilisateurs, peuvent conduire à l'endommagement du câble ou à un affaiblissement de sa résistance mécanique au points d'attache. Des lignes d'assurage conventionnelles doivent être contrôlées souvent et remplacées régulièrement, avant même que des signes d'usure ou de fatigue apparaissent, afin d'éviter tout risque de rupture du câble. The rigid attachment of the cable to a support creates an area susceptible to fatigue due to shear forces and torsional forces acting at the interface between the fixed body and the free portion of the cable. The natural oscillations of the cable due to the wind, or during the passage of the users, can lead to the damage of the cable or to a weakening of its mechanical strength at the points of attachment. Conventional belay lines must be checked often and replaced regularly, even before signs of wear or fatigue appear, to avoid any risk of cable breakage.
En cas de choc important sur la ligne d'assurage, les supports rigides sont susceptibles de déformation irréversible, voire même de rupture, cela pouvant occasionner un manque de fiabilité du système d'assurage et conduire à un accident, et par ailleurs cela occasionne des réparations importantes et coûteuses de la ligne d'assurage. In the event of a major impact on the line of belaying, the rigid supports are liable to irreversible deformation, or even rupture, this may cause a lack of reliability of the belay system and lead to an accident, and moreover it causes accidents. major and costly repairs to the line of belay.
Les lignes d'assurage continues à poulie, ont le désavantage de ne pas freiner l'utilisateur suite à une chute lorsqu'il y a une section de câble inclinée, avec le risque que l'utilisateur entre en collision avec un autre utilisateur ou avec une structure de support ou autre obstacle dans le parcours. The continuous belay lines with pulley have the disadvantage of not braking the user following a fall when there is an inclined cable section, with the risk that the user collides with another user or with a support structure or other obstacle in the course.
Au vu de ce qui précède, un but de l'invention est de réaliser un système de ligne d'assurage continue très sûr et fiable. In view of the foregoing, an object of the invention is to provide a reliable and reliable continuous belay line system.
Il est avantageux de réaliser un système de ligne d'assurage économique à utiliser et à entretenir. II est avantageux de réaliser un système de ligne d'assurage continue qui permet d'avoir une grande diversité du parcours. Il est avantageux de réaliser un système de ligne d'assurage continue qui est facile à installer et à ajuster. II est avantageux de réaliser un système de ligne d'assurage continue qui a une longue durée de vie. It is advantageous to provide an economic belay line system for use and maintenance. It is advantageous to provide a continuous belay line system which makes it possible to have a great diversity of the course. It is advantageous to provide a continuous belay line system that is easy to install and adjust. It is advantageous to provide a continuous belay line system which has a long service life.
Il est avantageux de réaliser un système de ligne d'assurage continue qui réduit les chocs pour l'utilisateur et sur le système en cas de chute ou autre accident. It is advantageous to provide a continuous belay line system that reduces shocks to the user and the system in the event of a fall or other accident.
Il est avantageux de réaliser un système de ligne d'assurage continue qui est peu susceptible aux dommages dus à la fatigue des matériaux. Des buts de l'invention sont réalisés par le système de ligne d'assurage selon la revendication 1 , 6, 10, ou 15. It is advantageous to provide a continuous belay line system that is unlikely to cause fatigue damage to materials. Objects of the invention are realized by the belay line system according to claim 1, 6, 10, or 15.
Dans la présente, on décrit un système de ligne d'assurage incluant une poulie, un dispositif de support de câble, et un câble d'assurage supporté par le dispositif de support de câble. La poulie comprend un canal pour recevoir le câble d'assurage et une fente reliée au canal pour permettre le passage d'une partie d'un support de câble. Le dispositif de support de câble comprend une partie de guidage de câble et une partie de fixation pour fixer la partie de guidage de câble à une structure. In the present there is described a belay line system including a pulley, a cable support device, and a belay cable supported by the cable support device. The pulley includes a channel for receiving the belay cable and a slot connected to the channel to allow passage of a portion of a cable support. The cable support device includes a cable guide portion and an attachment portion for securing the cable guide portion to a structure.
Dans un aspect de l'invention, la partie de guidage de câble et la partie de fixation sont formées de pièces séparées, verrouillées ensembles par exemple au moyen de vis et écrou. Dans un aspect de l'invention, le tube de guidage du dispositif de support de câble comprend un ou plusieurs trous de vis pour loger des vis de freinage afin d'arrêter le câble d'assurage dans le tube de support. Le serrage de la vis de freinage ou les vis de freinages est configuré pour bloquer le câble d'assurage de manière non-amovible dans le dispositif de support de câble lors d'une utilisation normale de la ligne d'assurage et pour permettre le glissement du câble d'assurage par rapport au dispositif de support en cas de forces de traction dépassant un certain seuil déterminé pour éviter un dommage du système. In one aspect of the invention, the cable guide portion and the attachment portion are formed of separate parts, locked together for example by means of screws and nuts. In one aspect of the invention, the guide tube of the cable support device comprises one or more screw holes for housing brake screws to to stop the belay cable in the support tube. The tightening of the brake screw or the braking screws is configured to lock the belay cable non-releasably in the cable support device during normal use of the belay line and to allow sliding of the belay cable with respect to the support device in the event of tensile forces exceeding a certain threshold to avoid damage to the system.
Dans un aspect de l'invention, le câble est monté coulissant dans le support de câble et le système inclut en outre un dispositif d'ancrage amovible de câble comprenant un moyen élastique et un moyen de fixation, le moyen élastique étant disposé et travaillant élastiquement, en compression ou en traction, entre le dispositif de support de câble et le moyen de fixation. Dans un aspect de l'invention, le système comprend un dispositif de bifurcation comprenant au moins trois branches connectées aux extrémités aux câbles d'assurage, le dispositif de bifurcation comprenant des rainures dans une zone de rencontre des branches configurées pour permettre le passage de la poulie par sa fente à travers le dispositif de bifurcation en l'orientant selon l'une des rainures ou l'autre des rainures en fonction de la direction choisie. In one aspect of the invention, the cable is slidably mounted in the cable holder and the system further includes a removable cable anchoring device comprising an elastic means and a fastening means, the elastic means being resiliently disposed and operable in compression or in tension between the cable support device and the fastening means. In one aspect of the invention, the system comprises a bifurcation device comprising at least three branches connected at the ends to the belay cables, the bifurcation device comprising grooves in a zone for meeting the branches configured to allow the passage of the pulley by its slot through the bifurcation device by orienting it according to one of the grooves or the other of the grooves according to the selected direction.
Dans un aspect de l'invention, le système comprend un dispositif anti-retour comprenant un support destiné à être fixé sur le câble d'assurage, et un mécanisme d'arrêt comprenant un bras pivotant avec une extrémité libre appuyée élastiquement ou au moyen d'un poids contre la ligne d'assurage. In one aspect of the invention, the system comprises a non-return device comprising a support for attachment to the belay cable, and a stop mechanism comprising a pivoting arm with a free end supported elastically or by means of a weight against the belay line.
D'autres buts et aspects avantageux de l'invention ressortiront des revendications, de la description détaillée de formes d'exécution ci-après et des dessins annexés, dans lesquels : la figure 1 a est une vue d'une poulie (sans capuchon) et d'un support d'un système de ligne d'assurage continue selon une forme d'exécution de l'invention, vus dans l'axe de déplacement de la poulie; la figure 1 b est une vue en perspective de la poulie sans capuchon et d'une partie du support d'un système de ligne d'assurage continue selon la forme d'exécution de la figure 1 a; la figure 1 c est une vue dans l'axe de déplacement de la poulie du dispositif de la figure 1 b ; la figure 2a est une vue en perspective du dispositif de support selon une forme d'exécution de l'invention ; la figure 2b est une vue du haut du dispositif de support de la figure 2a ; la figure 2c est une vue en perspective d'une partie de fixation du dispositif de support de la figure 2a ; les figures 2d et 2e sont des vues en perspective d'une partie de guidage de câble du dispositif de support de la figure 2a ; la figure 2f est une vue en perspective et en coupe d'une partie de guidage de câble du dispositif de support de la figure 2a ; la figure 3a est une vue d'un dispositif d'ancrage souple et amovible de câble selon une forme d'exécution ; la figure 3b est une vue d'un dispositif d'ancrage souple et amovible de câble selon une autre forme d'exécution ; les figures 4a et 4b sont des vues en perspective d'un dispositif de bifurcation selon une forme d'exécution de l'invention ; la figure 4c est une vue en perspective d'une portion d'un parcours d'un système de ligne d'assurage illustrant un dispositif de bifurcation selon une forme d'exécution de l'invention ; la figure 4d est une vue du dispositif de bifurcation de la figure 4a; la figure 4e est une vue en section selon la ligne E-E de la figure 4d ; et les figures 5a et 5b sont des vues en perspective d'un dispositif anti-retour selon une forme d'exécution de l'invention. Faisant référence tout d'abord aux figures 1 a à 1 c, le système de ligne d'assurage selon une forme d'exécution de l'invention comprend une poulie 4, un dispositif de support de câble 6 et un câble d'assurage 2 supporté par le dispositif de support de câble 6. La poulie 4 comprend des roues 8 montées dans un corps 10 comprenant un canal 1 1 pour le passage du câble d'assurage 2, une fente 13 reliée au canal 1 1 pour permettre le passage d'une extension 24 d'un dispositif de support de câble, et une partie d'attache 12 avec un anneau, oeillet ou crochet 14 pour permettre d'attacher une corde de sécurité (non illustrée) d'un utilisateur. La corde de sécurité est destinée à être connectée à son autre extrémité à un harnais de l'utilisateur. Other objects and advantageous aspects of the invention will emerge from the claims, from the following detailed description of embodiments and the accompanying drawings, in which: FIG. 1a is a view of a pulley (without a cap) and a support of a continuous belay line system according to one embodiment of the invention, seen in the axis of displacement of the pulley; Figure 1b is a perspective view of the non-cap pulley and a portion of the support of a continuous belay line system according to the embodiment of Figure 1a; Figure 1c is a view in the axis of movement of the pulley of the device of Figure 1b; Figure 2a is a perspective view of the support device according to one embodiment of the invention; Figure 2b is a top view of the support device of Figure 2a; Figure 2c is a perspective view of an attachment portion of the support device of Figure 2a; Figures 2d and 2e are perspective views of a cable guide portion of the support device of Figure 2a; Figure 2f is a perspective and sectional view of a cable guide portion of the support device of Figure 2a; Figure 3a is a view of a flexible and removable cable anchoring device according to one embodiment; Figure 3b is a view of a flexible and removable cable anchoring device according to another embodiment; Figures 4a and 4b are perspective views of a bifurcation device according to one embodiment of the invention; Figure 4c is a perspective view of a portion of a course of a belay line system illustrating a bifurcation device according to one embodiment of the invention; Figure 4d is a view of the bifurcation device of Figure 4a; Figure 4e is a sectional view along the line EE of Figure 4d; and Figures 5a and 5b are perspective views of a non-return device according to one embodiment of the invention. Referring first to Figures 1a-1c, the belay line system according to one embodiment of the invention comprises a pulley 4, a cable support device 6 and a belay cable 2 supported by the cable support device 6. The pulley 4 comprises wheels 8 mounted in a body 10 comprising a channel 1 1 for the passage of the belay cable 2, a slot 13 connected to the channel 1 1 to allow the passage of an extension 24 of a cable support device, and a fastening portion 12 with a ring, eyelet or hook 14 to allow attachment of a safety rope (not shown) of a user. The safety rope is intended to be connected at its other end to a harness of the user.
La fente 13 a une largeur F minimum inférieure au diamètre D du câble d'assurage de sorte à ce que le câble ne puisse pas sortir du canal 1 1 et par conséquent que la poulie ne puisse pas se dégager du câble. La poulie 4 doit donc être inclinée à un certain angle par rapport au dispositif de support 6 pour pouvoir passer le support. The slot 13 has a minimum width F less than the diameter D of the belay cable so that the cable can not leave the channel 1 1 and therefore that the pulley can not be released from the cable. Pulley 4 must therefore be inclined at a certain angle with respect to the support device 6 to be able to pass the support.
Faisant référence aux figures 2a à 2f, le dispositif de support de câble selon une forme d'exécution est illustré. Dans cette forme d'exécution, le dispositif 6 de support de câble comprend une partie de guidage (ou de support) de câble 16 et une partie de fixation 18 pour fixer la partie de support de câble 16 à une structure telle qu'un poteau, arbre, rocher ou autre structure de support au sol naturelle ou construite. Des structures de support sont par exemple disposées à des intervalles le long d'un parcours de parc aventures ou d'un site de construction, le câble d'assurage étant suspendu entre des pairs de structures le long du parcours. Referring to Figures 2a-2f, the cable support device according to one embodiment is illustrated. In this embodiment, the cable support device 6 comprises a cable guide (or support) portion 16 and an attachment portion 18 for securing the cable support portion 16 to a structure such as a pole. , tree, rock or other natural or constructed ground support structure. Support structures are for example arranged at intervals along an adventurous park course or a construction site, the belay cable being suspended between pairs of structures along the course.
La partie de fixation 18 comprend une base 20 et une extension 22 s'étendant de la base, l'extension étant configurée pour être fixée à une extension 24 complémentaire de la partie 16 de guidage de câble. Ainsi, la partie de guidage de câble et la partie de fixation peuvent être formées de pièces séparées qui sont assemblées et verrouillées ensemble, cela apportant plusieurs avantages. Différentes formes de base peuvent être fournies pour la fixation du dispositif de support à des structures de formes ou de matériaux différentes en utilisant les mêmes parties de guidage de câble, réduisant les coûts de fabrication et augmentant la polyvalence du système. Par ailleurs, la partie de fixation 18 peut être déplacée, ou changée en cas de déformation, usure ou dommage sans changer le câble d'assurage et les parties de guidage de câble 16, ou inversement de permettre de changer le câble d'assurage sans enlever les parties de fixation 18. Aussi, les parties de fixation 18 peuvent être fixées préalablement à des structures avant le montage du câble d'assurage facilitant ainsi le montage du système de ligne d'assurage et son entretien. La partie de fixation 18 peut également être configurée et choisie selon la position et l'angle que l'on souhaite pour la partie de guidage de câble 16. La base 20 de la partie de fixation peut être munie de divers moyens de fixation tels que des trous 21 a, 21 b pour le passage de vis, crochets, rivets, sangles ou autres moyens de fixation. The attachment portion 18 includes a base 20 and an extension 22 extending from the base, the extension being configured to be attached to an extension 24 complementary to the cable guide portion 16. Thus, the cable guide portion and the fastening portion may be formed of separate pieces that are assembled and locked together, providing a number of advantages. Various basic shapes can be provided for attaching the support device to structures of different shapes or materials using the same cable guide parts, reducing manufacturing costs and increasing the versatility of the system. Furthermore, the fixing portion 18 can be moved, or changed in case of deformation, wear or damage without changing the belay cable and the cable guide portions 16, or conversely to allow to change the belay cable without Also, the attachment portions 18 may be pre-attached to structures prior to the mounting of the belay cable thereby facilitating the assembly of the belay line system and its maintenance. The fixing portion 18 may also be configured and selected according to the desired position and angle for the cable guide portion 16. The base 20 of the attachment portion may be provided with various fastening means such as of the holes 21a, 21b for the passage of screws, hooks, rivets, straps or other means of attachment.
L'extension 22 de la partie de fixation 18 est, dans la variante illustrée, sous forme d'une portion de plaque inclinée 23 interconnectée solidairement à la base 20 par des parois latérales 25. La surface intérieure des parois latérales 25 comprend des rails de guidage 26, par exemple sous forme de rainures pour le guidage et l'insertion de bords latéraux 27 complémentaires de l'extension 24 de la partie de guidage de câble 16. Les rails de guidage 26 peuvent aussi avoir une forme trapézoïdale ou évasée, l'extension 24 du dispositif de support de câble 16 ayant une forme complémentaire de sorte à ce que le montage d'une extension dans l'autre a un effet de cale ou de coin. Une vis avec un écrou 28 peut ensuite être insérée à travers des trous d'assemblage 29a, 29b dans les extensions respectives 24, 22 afin de les fixer et les verrouiller ensemble. The extension 22 of the fixing portion 18 is, in the variant illustrated, in the form of an inclined plate portion 23 interconnected integrally with the base 20 by side walls 25. The inner surface of the side walls 25 comprises guide 26, for example in the form of grooves for guiding and insertion of complementary lateral edges 27 of the extension 24 of the cable guide portion 16. The guide rails 26 may also have a trapezoidal or flared shape, extension 24 of the cable support device 16 having a complementary shape so that the mounting of an extension in the other has a wedge or wedge effect. A screw with a nut 28 can then be inserted through assembly holes 29a, 29b into respective extensions 24, 22 to secure and lock them together.
Une face 30 d'une des extensions 24 en contact avec l'autre extension 22 peut avantageusement être munie d'une ou plusieurs protubérances ou nervures 30a. Les nervures permettent d'empêcher l'écrou de fixation de tourner sur son axe au moment du serrage. La compression d'une face 30 d'une extension contre la face de l'autre extension est obtenue par les rainures 26 en forme de V et la forme complémentaire des bords latéraux 27, ainsi que de la forme trapézoïdale ou évasée des bords latéraux et des rails, de sorte à ce que lorsque l'on insère l'extension 24 dans les rails 26, l'extension 24 est serrée contre la portion de plaque inclinée 23 de l'extension 22. One face 30 of one of the extensions 24 in contact with the other extension 22 may advantageously be provided with one or more protuberances or ribs 30a. The ribs prevent the fixing nut from rotating on its axis at the time of tightening. The compression of a face 30 of an extension against the face of the other extension is obtained by the V-shaped grooves 26 and the complementary shape of the lateral edges 27, as well as the trapezoidal or flared shape of the lateral edges and rails, so that when inserting the extension 24 into the rails 26, the extension 24 is clamped against the inclined plate portion 23 of the extension 22.
Les bords latéraux supérieurs 31 de la partie de guidage de câble 16 peuvent être formés comme des lames de couteaux de sorte à améliorer et faciliter leur guidage à travers les fentes 13 des poulies. Les fentes 13 des corps des poulies peuvent avoir des formes d'entonnoir pour faciliter l'engagement et le guidage de la poulie à travers le support. La partie de guidage de câble 16 comprend en outre un tube de support ou de guidage 32 comprenant un canal 33 dans lequel est inséré le câble d'assurage 2, la forme extérieure du tube aux extrémités pouvant avoir une forme légèrement évasée afin de faciliter l'engagement des roues 8 de la poulie sur le tube. Le tube de guidage peut avantageusement comprendre un ou plusieurs trous de vis 34 pour des vis de freinage 35 qui sont vissées dans les trous afin de produire une friction importante du câble d'assurage dans le tube de support. Les vis de freinage peuvent être des vis ayant une extrémité plate ou légèrement convexe venant en appui contre le câble. Il est également envisageable d'avoir une ou plusieurs plaques amovibles 70 à l'intérieur du tube entre les vis 35 et le câble pour réduire la pression locale exercée par la vis sur le câble. La plaque amovible peut être sous forme d'un anneau fendu 70, la plaque ou l'anneau étant appuyée contre le câble d'assurage par la ou les vis. L'anneau fendu peut également être élastique afin de reprendre sa forme en appui contre la surface du canal 33 lorsque la vis 35 est desserrée. The upper side edges 31 of the cable guide portion 16 may be formed as knife blades so as to improve and facilitate their guidance through the slots 13 of the pulleys. Slots 13 of the pulley bodies may have funnel shapes to facilitate engagement and guidance of the pulley through the support. The cable guide portion 16 further comprises a support or guide tube 32 comprising a channel 33 into which the belay cable 2 is inserted, the outer shape of the tube at the ends being able to have a slightly flared shape to facilitate engagement of the wheels 8 of the pulley on the tube. The guide tube may advantageously comprise one or more screw holes 34 for brake screws 35 which are screwed into the holes in order to produce a high friction of the belay cable in the support tube. The braking screws may be screws having a flat or slightly convex end bearing against the cable. It is also conceivable to have one or more removable plates 70 inside the tube between the screws 35 and the cable to reduce the local pressure exerted by the screw on the cable. The removable plate may be in the form of a split ring 70, the plate or the ring being pressed against the belay cable by the screw or screws. The split ring may also be resilient to reshape against the surface of the channel 33 when the screw 35 is loosened.
Le serrage de la vis de freinage peut avantageusement être configuré pour bloquer le câble d'assurage de manière non-amovible ou non-figée dans le dispositif de support de câble lors d'une utilisation normale de la ligne d'assurage, mais pour permettre le glissement du câble d'assurage par rapport au dispositif de support en cas de forces de traction dépassant un certain seuil déterminé pour éviter un dommage ponctuel du système. Une force dépassant le seuil déterminé peut résulter par exemple d'une chute accidentelle d'un utilisateur ou d'un autre choc sur le câble d'assurage résultant d'objets tombant sur le câble (par exemple en cas de vent fort). Le glissement du câble en cas de choc permet d'éviter un endommagement du câble ou d'un ou plusieurs dispositifs de support lors de chocs importants, évitant le remplacement de la ligne d'assurage. Dans un exemple pratique, les dispositifs de support peuvent être munis de deux vis de taille M8 serrées sur le câble avec un couple d'environ 6 à 7 Nm, cela pour un câble d'assurage en acier tressé d'un diamètre de 10 millimètres. De préférence les dispositifs de support ont au moins deux vis de taille M8, voir plus tel que M10, serrées sur le câble avec un couple entre 5 et 10 Nm . Les vis de freinage permettent d'une part de fixer la position du câble dans le support et donc les longueurs du câble d'assurage entre les structures d'attache, toutefois en évitant les désavantages d'une section de fixation rigide tel que le sertissage du câble dans un tube. Les vis de freinage appliquent une pression ponctuelle sur le câble permettant la flexion du câble ainsi qu'une certaine rotation due aux efforts de torsion, réduisant ainsi la fatigue du matériau. L'invention permet ainsi d'éviter les effets de fatigue dans le matériau du câble dus aux efforts de couple et de flexion à l'interface entre une connexion rigide et une partie libre du câble. The tightening of the braking screw can advantageously be configured to lock the belay cable in a non-removable or non-fixed manner in the cable support device during normal use of the belay line, but to allow the sliding of the belay cable relative to the support device in the event of tensile forces exceeding a certain threshold determined to avoid punctual damage to the system. A force exceeding the determined threshold may result for example from an accidental fall of a user or another shock on the belay cable resulting from objects falling on the cable (for example in the event of strong wind). The sliding of the cable in the event of a shock makes it possible to avoid damage to the cable or to one or more support devices during major shocks, avoiding the replacement of the belay line. In a practical example, the support devices may be provided with two screws of size M8 clamped on the cable with a torque of about 6 to 7 Nm, for a braided steel belay cable with a diameter of 10 millimeters . Preferably the support devices have at least two screws of size M8, see more such as M10, clamped on the cable with a torque between 5 and 10 Nm. The braking screws make it possible on the one hand to fix the position of the cable in the support and thus the lengths of the belay cable between the fastening structures, however avoiding the disadvantages of a rigid fastening section such as crimping. cable in a tube. The braking screws apply a point pressure on the cable allowing the bending of the cable and a certain rotation due to the torsional forces, thus reducing the fatigue of the material. The invention thus makes it possible to avoid the effects of fatigue in the cable material due to the torque and bending forces at the interface between a rigid connection and a free portion of the cable.
Faisant référence aux figures 3a et 3b, une autre forme d'exécution d'un dispositif de support de câble 6' est illustrée, en conjonction avec un dispositif d'ancrage amovible de câble 36. Le dispositif de support de câble 6' peut être similaire au dispositif de support de câble 6 décrit précédemment sauf que le câble d'assurage 2 n'est pas arrêté dans le tube de guidage de câble, mais laissé coulissant. Le dispositif d'ancrage amovible 36 remplit la fonction d'arrêt du câble 2, par rapport à un, deux, ou plusieurs supports 6', de manière amovible à travers des moyens élastiques 38 pour absorber des chocs et des à-coups de tension sur le câble d'assurage. Le support coulissant et élastique du câble d'assurage par rapport à un ou plusieurs supports permet de réduire les chocs pour les utilisateurs en cas de chute accidentelle ou lors d'une utilisation brusque de la ligne d'assurage, augmentant ainsi le confort pour les utilisateurs. Avantageusement, l'invention permet d'insérer de l'élasticité à touts les supports du câble et non seulement en bout de câble comme cela s'opère dans certains systèmes connus. Cette absorption de chocs et de pics de tension sur le câble d'assurage améliore non seulement le confort des utilisateurs mais réduit les risques de déformation et de fatigue du câble et des supports, augmentant ainsi aussi la sécurité du système de ligne d'assurage. Referring to Figs. 3a and 3b, another embodiment of a cable support device 6 'is illustrated, in conjunction with a removable cable anchoring device 36. The cable support device 6' may be similar to the cable support device 6 described above except that the belay cable 2 is not stopped in the cable guide tube, but left slidable. The removable anchoring device 36 performs the function of stopping the cable 2, with respect to one, two or more supports 6 ', in a removable manner through elastic means 38 to absorb shocks and jolts of tension on the belay cable. The sliding and elastic support of the belay cable with respect to one or more supports makes it possible to reduce the shocks for the users in the event of an accidental fall or during a sudden use of the belay line, thus increasing the comfort for the users. users. Advantageously, the invention makes it possible to insert elasticity to all the supports of the cable and not only at the end of the cable as is done in certain known systems. This absorption of shocks and tension peaks on the belay cable not only improves the comfort of users but reduces the risk of deformation and fatigue of the cable and supports, thus increasing the safety of the belay line system.
Le dispositif d'ancrage amovible peut comprendre un moyen de fixation 40, 40' tel qu'une bague de fixation, et un moyen élastique 38, optionnellement amortissant, tel qu'un ressort à boudin. D'autres formes de ressorts comme un tube ou un empilement d'anneaux en matériaux ayant des propriétés élastiques peuvent être envisagés. Dans les exemples illustrés, le moyen élastique est disposé autour du câble d'assurage 2. Il est également envisageable d'avoir un moyen élastique s'étendant d'un côté le long du câble 2 et fixé à ses extrémités au dispositif de support d'un côté et à l'élément de fixation 40 de l'autre côté. Dans ce dernier cas de figure, les moyens élastiques sont connectés au support, respectivement à l'élément de fixation 40 par des bras d'extension configurés pour passer à travers la fente d'une poulie. Dans le cas où les moyens élastiques sont sous forme tubulaire ou d'un ressort à boudin tel qu'illustré, les moyens élastiques ont un diamètre extérieur configuré pour permettre le roulement des rouleaux 8 de la poulie sur les moyens élastiques. The removable anchoring device may comprise a fixing means 40, 40 'such as a fixing ring, and a resilient means 38, optionally damping, such as a coil spring. Other forms of springs such as a tube or a stack of rings of materials having elastic properties can be envisaged. In the illustrated examples, the resilient means is arranged around the belay cable 2. It is also conceivable to have an elastic means extending on one side along the cable 2 and fixed at its ends to the support device of FIG. one side and the fixing member 40 on the other side. In the latter case, the elastic means are connected to the support, respectively to the fixing member 40 by extension arms configured to pass through the slot of a pulley. In the case where the elastic means are in tubular form or a coil spring as illustrated, the elastic means have an outer diameter configured to allow rolling of the rollers 8 of the pulley on the elastic means.
L'élément de fixation 40 selon la forme d'exécution illustrée est sous forme d'une section de tube arrêté sur le câble d'assurage, par exemple par un moyen de fixation permanent (sertissage, soudure) ou par un moyen de fixation séparable tel qu'une ou plusieurs vis de freinage. Les vis de freinage peuvent avoir une configuration similaire aux vis de freinage du dispositif de support de câble 6 décrit précédemment, ou pourraient avoir une autre forme. Dans le premier cas, des vis de freinage peuvent aussi être vissées avec un couple d'une amplitude définie afin de permettre le glissement du câble d'assurage 2 relatif à l'élément de fixation. Cela permet d'éviter l'endommagement des supports et du câble lors d'un choc ou d'une force de traction très important sur le câble d'assurage. Dans une première variante, comme illustré à la figure 3a, l'élément de fixation 40 est disposé entre deux dispositifs de support de câble 6', un moyen élastique 38 étant disposé de part et d'autre de l'élément de fixation 40 entre l'élément de fixation et les dispositifs de câble 6' respectifs. Les deux ressorts peuvent travailler en compression ou alternativement les ressorts peuvent être configurés pour travailler en compression et en traction en fonction de la direction de la force appliquée sur le câble d'assurage. The fixing element 40 according to the illustrated embodiment is in the form of a section of tube stopped on the belay cable, for example by a permanent fixing means (crimping, welding) or by a separable fixing means such as one or more braking screws. The braking screws may have a configuration similar to the braking screws of the cable support device 6 described above, or could have another shape. In the first case, braking screws can also be screwed with a torque of a defined amplitude to allow the sliding of the belay cable 2 relative to the fastener. This avoids damage to the supports and the cable during a shock or a very strong traction force on the belay cable. In a first variant, as illustrated in FIG. 3a, the fastening element 40 is disposed between two cable support devices 6 ', an elastic means 38 being disposed on either side of the fastening element 40 between the fastening element and the respective cable devices 6 '. The two springs can work in compression or alternatively the springs can be configured to work in compression and traction depending on the direction of the force applied on the belay cable.
Dans la forme d'exécution illustrée dans la figure 3b, il y a deux moyens élastiques disposés de part et d'autre d'un dispositif de support de câble 6', et deux éléments de fixation 40' disposés de part et d'autre du dispositif de support de câble pour arrêter une extrémité de chaque ressort. Là aussi, les deux ressorts peuvent être au moins partiellement comprimés dans leur position centrée ou peuvent être non comprimés dans leur position centrée et travailler en traction et en compression, ou encore seulement un des ressorts travaillent en compression en fonction de la direction de la force appliquée sur le câble d'assurage. In the embodiment illustrated in FIG. 3b, there are two elastic means disposed on either side of a cable support device 6 ', and two fastening elements 40' arranged on either side the cable support device for stopping an end of each spring. Again, the two springs can be at least partially compressed in their centered position or can be uncompressed in their centered position and work in tension and compression, or only one of the springs work in compression depending on the direction of the force applied on the belay cable.
Il est également envisageable d'avoir d'autres configurations et un autre nombre d'éléments de fixation et de moyens élastiques. Par exemple, il est possible d'avoir un seul ressort fixé au câble d'un côté et au dispositif de support de l'autre côté, le moyen élastique travaillant élastiquement en compression et en traction. Faisant référence aux figures 4a à 4e, un dispositif de bifurcation 42 selon une forme d'exécution de l'invention est illustré. Le dispositif de bifurcation 42 a au moins trois branches 43a, 43b, 43c. Dans l'exemple illustré, les trois branches forment un "Y". Dans la forme d'exécution illustrée, deux des branches 43a, 43b sont alignées sur un même axe A-B, alors que la troisième branche 43c est déviée de cet axe selon un axe A-C courbe par rapport à l'axe A-B, de manière à réaliser une bifurcation de la ligne d'assurage définie par l'axe A-B. Le dispositif de bifurcation 42 est fixé à chaque extrémité 41 a, 41 b, 41 c de ces branches 43a, 43b, 43c à des câbles d'assurage du système de ligne d'assurage. Les extrémités 41 a, 41 b, 41 c des branches peuvent être munies de trous dans lesquels sont façonnés des filetages qui permettent le raccordement d'éléments de jonction au câble de la ligne continue par sertissage ou fixées par d'autres moyens aux branches du dispositif de bifurcation. Le dispositif de bifurcation peut en outre comprendre un support ou base et optionneNement les câbles d'assurage 2, 2' sont fixés à un dispositif de support de câble 6 sur une structure 5 à une certaine distance du dispositif de bifurcation afin d'éviter que des forces de traction sur le câble d'assurage agissent directement sur le dispositif de bifurcation. It is also conceivable to have other configurations and another number of fastening elements and elastic means. For example, it is possible to have a single spring attached to the cable on one side and the support device on the other side, the elastic means working elastically in compression and traction. Referring to Figures 4a-4e, a bifurcation device 42 according to one embodiment of the invention is illustrated. The bifurcation device 42 has at least three branches 43a, 43b, 43c. In the example shown, the three branches form a "Y". In the illustrated embodiment, two of the branches 43a, 43b are aligned on the same axis AB, while the third branch 43c is deviated from this axis along an axis AC curved with respect to the axis AB, so as to achieve a bifurcation of the belay line defined by the AB axis. The bifurcation device 42 is fixed at each end 41a, 41b, 41c of these branches 43a, 43b, 43c to belay cables belay line system. The ends 41a, 41b, 41c of the branches may be provided with holes in which threads are formed which allow connection of the connecting elements to the cable of the continuous line by crimping or fixed by other means to the branches of the bifurcation device. The bifurcation device may further comprise a support or base and optionally the belay cables 2, 2 'are attached to a cable support device 6 on a structure 5 at a distance from the bifurcation device to prevent traction forces on the belay cable act directly on the bifurcation device.
Dans la zone de rencontre 44 des branches 43, le dispositif de bifurcation est muni de rainures 45a, 46a permettant le passage de la poulie par sa fente à travers le dispositif de bifurcation. Une première rainure 45a est formée à travers la branche incurvée 43c de bifurcation, la rainure 45a s'étendant parallèlement à l'axe A-B pour permettre à une poulie de coulisser le long du câble d'assurage s'étendant dans la direction A-B. Pour cela, l'utilisateur doit pivoter la poulie de sorte à ce que sa fente 13 soit alignée avec l'épaisseur R du matériau entre le fond de la rainure et le côté opposé de l'élément de bifurcation. La rainure 46a est disposée essentiellement parallèlement à l'autre axe A-C permettant à l'utilisateur de bifurquer de l'axe A-B sur l'axe A-C de la ligne d'assurage. Des rainures ou aplatissements 45b, 46b peuvent êtres réalisés sur les côtés opposés aux rainures 45a, 46a afin d'amincir la section R de passage pour la poulie. In the meeting zone 44 of the branches 43, the bifurcation device is provided with grooves 45a, 46a allowing the passage of the pulley through its slot through the bifurcation device. A first groove 45a is formed through the bifurcated curved branch 43c, the groove 45a extending parallel to the axis A-B to allow a pulley to slide along the belay cable extending in the A-B direction. For this, the user must pivot the pulley so that its slot 13 is aligned with the thickness R of the material between the bottom of the groove and the opposite side of the bifurcation element. The groove 46a is disposed substantially parallel to the other axis A-C allowing the user to branch off the axis A-B on the axis A-C of the belay line. Grooves or flattenings 45b, 46b may be made on opposite sides of the grooves 45a, 46a to thin the passage section R for the pulley.
Afin de changer de direction de l'axe A-B sur l'axe A-C, l'utilisateur doit faire pivoter la poulie sur l'axe du canal 1 1 de sorte à ce que la fente 13 de la poulie soit alignée avec l'épaisseur R du matériau constitué par le fond de la rainure 46a et le côté opposé 46b de l'élément de bifurcation. Un utilisateur provenant du côté de la branche 43a peut donc soit continuer dans la direction de l'axe A- B soit dévier sur la direction de l'axe A-C vers la branche 43c simplement en orientant la poulie autour du câble d'assurage pour positionner la fente de la poulie selon la rainure 45a ou la rainure 46a en fonction de la direction choisie. Faisant référence aux figures 5a, 5b, un dispositif anti-retour est illustré. Le dispositif anti-retour sert à permettre le déplacement d'une poulie dans une direction le long de la ligne d'assurage, mais d'arrêter le déplacement dans la direction opposée. Ceci peut être utile pour arrêter la chute en arrière d'un utilisateur sur une ligne inclinée ou tout simplement pour éviter le déplacement dans un des sens. Le dispositif anti-retour selon la forme d'exécution illustrée comprend un support 54 destiné à être fixé sur le câble de la ligne d'assurage, et un mécanisme d'arrêt 56 ayant un bras pivotant 58 qui est appuyé élastiquement à une extrémité libre 60 contre la ligne d'assurage - soit contre le tube 59 du support 54 tel qu'illustré, soit contre le câble d'assurage 2 s'étendant du support. Dans le sens positif (S+) du parcours, la poulie écarte élastiquement le bras 58 de la ligne d'assurage permettant ainsi le passage de la poulie à travers le dispositif anti-retour, mais dans le sens inverse (S-) la poulie bute contre le bras 58 en le poussant vers la ligne d'assurage, bloquant ainsi le retour de la poulie. In order to change the direction of the axis AB on the axis AC, the user must rotate the pulley on the axis of the channel 1 1 so that the slot 13 of the pulley is aligned with the thickness R the material consisting of the bottom of the groove 46a and the opposite side 46b of the bifurcation element. A user coming from the side of the branch 43a can therefore either continue in the direction of the axis A- B is deflected on the direction of the axis AC towards the branch 43c simply by orienting the pulley around the belay cable to position the slit of the pulley according to the groove 45a or the groove 46a according to the chosen direction. Referring to Figures 5a, 5b, a non-return device is illustrated. The anti-return device serves to allow the movement of a pulley in one direction along the belay line, but to stop movement in the opposite direction. This can be useful for stopping the fall back of a user on an inclined line or simply to avoid moving in one direction. The non-return device according to the illustrated embodiment comprises a support 54 intended to be fixed on the cable of the belay line, and a stop mechanism 56 having a pivoting arm 58 which is resiliently supported at a free end 60 against the belay line - either against the tube 59 of the support 54 as illustrated, or against the belay cable 2 extending from the support. In the positive direction (S +) of the course, the pulley elastically spreads the arm 58 of the belay line thus allowing the pulley to pass through the non-return device, but in the opposite direction (S-) the pulley stops. against the arm 58 by pushing it towards the belay line, thus blocking the return of the pulley.
Le support 54 du dispositif anti-retour peut être fixé le long du câble 2 à une position quelconque voulue, le support 54 comprenant, dans la variante illustrée, un tube 59 avec un canal 60 dans lequel le câble d'assurage est inséré. Le tube peut comprendre des trous 61 pour des vis de freinage pour verrouiller le dispositif anti-retour sur le câble d'assurage. Les vis de freinage peuvent avoir une configuration identique ou similaire aux vis de freinage du dispositif de support 6 décrit en relation avec les figures 2a à 2b, les vis de freinage étant serrées de sorte à permettre un glissement du support 54 sur le câble en cas de choc ou de force dépassant un seuil prédéfini. Cela permet d'éviter un endommagement du câble ou encore du dispositif anti-retour et également de limiter les chocs à un utilisateur. Le dispositif anti-retour peut être freiné sur le câble d'assurage par d'autres moyens que des vis, par exemple par une pince élastique ou un sertissage limité permettant le glissement lorsque une force prédéfinie est applique sur le dispositif dans la direction de l'axe du câble. The support 54 of the non-return device can be fixed along the cable 2 at any desired position, the support 54 comprising, in the variant illustrated, a tube 59 with a channel 60 in which the belay cable is inserted. The tube may include holes 61 for braking screws to lock the non-return device on the belay cable. The braking screws may have a configuration identical or similar to the braking screws of the support device 6 described in connection with Figures 2a to 2b, the braking screws being tightened so as to allow sliding of the support 54 on the cable in case shock or force exceeding a predefined threshold. This avoids damage to the cable or the non-return device and also to limit shocks to a user. The non-return device can be braked on the belay cable by means other than screws, for example by a resilient clamp or a limited crimping allowing sliding when a predefined force is applied to the device in the direction of the cable axis.
Le dispositif anti-retour permet un retour de la poulie en sens inverse en appliquant manuellement une rotation du bras pivotant 58 par un utilisateur. Le bras anti-retour 58 peut être appuyé élastiquement contre le tube du support ou le câble d'assurage par différents moyens élastiques. Dans la variante illustrée, le bras anti-retour 58 comprend un élément essentiellement rigide monté de manière pivotante autour d'un axe 63 à une extension 64 du support 54. Un ressort en spirale 65 monté autour de l'axe 63 a une extrémité 65b qui engage le support et l'autre 65a le bras pivotant 58, le ressort en spirale étant disposé de manière à tourner élastiquement le bras anti-retour 58 vers le câble d'assurage. Le ressort peut être disposé entre des parties de paroi 67a, 67b du bras anti-retour. D'autres configurations sont toutefois envisageables, tel qu'un bras comportant une certaine élasticité et travaillant en flexion élastique, connecté à une de ses extrémités au support 54 et à l'autre extrémité en appui élastique contre la ligne d'assurage ou par utilisation d'un contre-poids. L'extension 64 du support 54 peut avoir une partie de paroi supérieure avec des bords 68 en lame de couteaux similaire à celle disposée sur la partie de guidage de câble décrite en relation avec les figures 2d et 2e ci-dessus, configurée pour permettre le passage de la poulie à travers le support 54. Liste d'éléments référencés dans les figures The non-return device allows a return of the pulley in reverse by manually applying a rotation of the pivot arm 58 by a user. The non-return arm 58 may be resiliently supported against the support tube or the belay cable by various elastic means. In the variant shown, the non-return arm 58 comprises a substantially rigid element pivotally mounted about an axis 63 to an extension 64 of the support 54. A spiral spring 65 mounted around the axis 63 has an end 65b which engages the support and the other 65a the pivoting arm 58, the spiral spring being arranged to resiliently rotate the non-return arm 58 towards the belay cable. The spring may be disposed between wall portions 67a, 67b of the non-return arm. Other configurations are, however, conceivable, such as an arm having a certain elasticity and working in elastic flexion, connected at one of its ends to the support 54 and at the other end in elastic support against the line of belay or by use a counterweight. The extension 64 of the support 54 may have an upper wall portion with knife blade edges 68 similar to that provided on the cable guide portion described in connection with Figs. 2d and 2e above, configured to allow the passage of the pulley through the support 54. List of elements referenced in the figures
Système de ligne d'assurage continue Continuous belay line system
2, 2' Câble 2, 2 'Cable
5 Structure 5 Structure
4 Poulie 4 Pulley
8 Roues 8 Wheels
10 Corps 10 Body
1 1 Canal 1 1 Canal
12 Partie d'attache 12 Part of attachment
14 anneau/ceillet/crochet 14 ring / loop / hook
13 Fente 13 Slot
6, 6' Dispositif de support de câble 6, 6 'Cable support device
16 Partie de guidage de câble 16 Cable guide part
18 partie de fixation 18 fixing part
24 extension 24 extension
27 Bords latéraux inférieurs 27 Bottom side edges
31 Bords latéraux supérieurs 31 Upper side edges
29a trou d'assemblage 29a assembly hole
30a nervures 30a ribs
32 tube de support ou guidage 32 support tube or guide
33 canal pour le câble d'assurage 33 channel for the belay cable
34 trous pour vis de freinage 34 holes for brake screw
35 vis de freinage 35 brake screws
70 anneau de serrage 70 clamping ring
18 partie de fixation 18 fixing part
20 base 20 basis
21 a, 21 b trous de fixation 21 a, 21 b fixing holes
22 extension 22 extension
23 plaque inclinée 23 slanted plate
29b trou d'assemblage 29b assembly hole
25 paroi latérale 25 side wall
26 rails 26 rails
28 vis-écrou 28 screw-nut
36 Dispositif d'ancrage amovible de câble 36 Removable cable anchoring device
38 moyens élastique 38 elastic means
40 moyen ou élément de fixation (de l'élément élastique sur le câble) Bague de fixation 40 medium or fastening element (of the elastic element on the cable) Fixing ring
42 Dispositif de bifurcation 42 Bifurcation device
41 a, 41 b, 41 c extrémités des branches 41 a, 41 b, 41 c ends of the branches
43a,43b,43c branches 43a, 43b, 43c branches
45a, 45b, 46a, 46b rainures 45a, 45b, 46a, 46b grooves
44 zone de rencontre des branches 44 branch meeting area
52 Dispositif anti-retour 52 Anti-return device
54 support 54 support
56 mécanisme d'arrêt 56 stop mechanism
58 bras anti-retour 58 anti-return arm
59 tube 59 tube
60 canal 60 channel
61 trous pour vis de freinage 63 axe 61 holes for brake screw 63 axis
64 extension 64 extension
65 ressort en spirale 65 spiral spring
65a, 65b extrémités 67a, 67b parties de paroi 65a, 65b ends 67a, 67b wall portions
68 bords 68 edges
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH00213/10 | 2010-02-19 | ||
| CH2132010A CH702713B1 (en) | 2010-02-19 | 2010-02-19 | belay line system continues. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011101781A1 true WO2011101781A1 (en) | 2011-08-25 |
Family
ID=43901334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2011/050617 Ceased WO2011101781A1 (en) | 2010-02-19 | 2011-02-15 | Continuous belay line system |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH702713B1 (en) |
| WO (1) | WO2011101781A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016201832A1 (en) * | 2016-02-08 | 2017-08-10 | Arthur Flury Ag | Cable guide system elements |
| US20200114183A1 (en) * | 2017-05-23 | 2020-04-16 | Spanset Inter Ag | Cable holder and running element |
| EP3677315A4 (en) * | 2017-08-29 | 2021-06-09 | Alonso Casimiro-Soriguer, Ignacio | Lifeline system |
| FR3127409A1 (en) | 2021-09-29 | 2023-03-31 | Somain Securite | Intermediate support for lifeline |
| FR3127410A1 (en) | 2021-09-29 | 2023-03-31 | Somain Securite | Intermediate support for lifeline |
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| EP0273673A1 (en) * | 1986-12-23 | 1988-07-06 | Barrow Hepburn Sala Limited | Safety track support and coupling |
| GB2336617A (en) * | 1998-04-23 | 1999-10-27 | Latchways Plc | Height safety system |
| WO2002092171A1 (en) * | 2001-05-11 | 2002-11-21 | Latchways Plc. | Safety line traveller and support |
| US6488118B1 (en) * | 2000-04-27 | 2002-12-03 | John A. Corriveau | Fall arrest bypass device and method for using same |
| WO2003045504A1 (en) * | 2001-11-27 | 2003-06-05 | Latchways Plc | Safety line support |
| DE202008004254U1 (en) * | 2008-03-28 | 2009-08-13 | Sperian Fall Protection Deutschland Gmbh & Co. Kg | Intermediate holder for the safety rope of an overhead rope system of a fall protection |
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| BE541346A (en) * | 1955-09-16 | 1955-10-15 | ||
| GB1094261A (en) * | 1963-03-08 | 1967-12-06 | Holborn Metal Works Ltd | Switching device for conveyor system |
| DE3367896D1 (en) * | 1983-03-30 | 1987-01-15 | Kottgen Gmbh Co Kg | Track bound conveyor system |
| US5979599A (en) * | 1996-12-17 | 1999-11-09 | Noles; Larry J. | Track transport system, track-support bracket, and track-traveling apparatus |
| GB2375366A (en) * | 2001-05-11 | 2002-11-13 | Latchways Plc | Safety line and shuttle arrangement |
| JP2003172406A (en) * | 2001-12-04 | 2003-06-20 | Shin Denki Kogyo Kk | Tension shock absorber |
| GB2389386B (en) * | 2002-03-14 | 2005-11-23 | Dunn & Cowe Ltd | Fall protection system and apparatus |
| JP4156556B2 (en) * | 2004-03-30 | 2008-09-24 | 細川 豊 | Protective fence |
| CN101842136B (en) * | 2007-06-13 | 2012-12-26 | 指数挑战技术合作有限责任公司 | Fall arrest assembly |
| DE102008006611B3 (en) * | 2008-01-29 | 2009-06-25 | Aerialtech Sa | Continuous security system for use at e.g. building, has fixed component, frame, plate or supporting point carrying starting point or starting points of one set of securing units or end point or end points of another set of securing units |
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2010
- 2010-02-19 CH CH2132010A patent/CH702713B1/en not_active IP Right Cessation
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2011
- 2011-02-15 WO PCT/IB2011/050617 patent/WO2011101781A1/en not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0273673A1 (en) * | 1986-12-23 | 1988-07-06 | Barrow Hepburn Sala Limited | Safety track support and coupling |
| GB2336617A (en) * | 1998-04-23 | 1999-10-27 | Latchways Plc | Height safety system |
| US6488118B1 (en) * | 2000-04-27 | 2002-12-03 | John A. Corriveau | Fall arrest bypass device and method for using same |
| WO2002092171A1 (en) * | 2001-05-11 | 2002-11-21 | Latchways Plc. | Safety line traveller and support |
| WO2003045504A1 (en) * | 2001-11-27 | 2003-06-05 | Latchways Plc | Safety line support |
| DE202008004254U1 (en) * | 2008-03-28 | 2009-08-13 | Sperian Fall Protection Deutschland Gmbh & Co. Kg | Intermediate holder for the safety rope of an overhead rope system of a fall protection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016201832A1 (en) * | 2016-02-08 | 2017-08-10 | Arthur Flury Ag | Cable guide system elements |
| US20200114183A1 (en) * | 2017-05-23 | 2020-04-16 | Spanset Inter Ag | Cable holder and running element |
| US11583711B2 (en) * | 2017-05-23 | 2023-02-21 | Spanset Inter Ag | Cable holder and running element |
| EP3677315A4 (en) * | 2017-08-29 | 2021-06-09 | Alonso Casimiro-Soriguer, Ignacio | Lifeline system |
| FR3127409A1 (en) | 2021-09-29 | 2023-03-31 | Somain Securite | Intermediate support for lifeline |
| FR3127410A1 (en) | 2021-09-29 | 2023-03-31 | Somain Securite | Intermediate support for lifeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CH702713A1 (en) | 2011-08-31 |
| CH702713B1 (en) | 2014-09-15 |
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