EP0768100B1 - Sewn attachment loop for an elastic rope, and method of making it - Google Patents

Sewn attachment loop for an elastic rope, and method of making it Download PDF

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Publication number
EP0768100B1
EP0768100B1 EP96410101A EP96410101A EP0768100B1 EP 0768100 B1 EP0768100 B1 EP 0768100B1 EP 96410101 A EP96410101 A EP 96410101A EP 96410101 A EP96410101 A EP 96410101A EP 0768100 B1 EP0768100 B1 EP 0768100B1
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EP
European Patent Office
Prior art keywords
rope
stitches
seam
loop
attachment loop
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.)
Revoked
Application number
EP96410101A
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German (de)
French (fr)
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EP0768100A1 (en
Inventor
Jean Marc Hede
Paul Petzl
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Zedel SAS
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Zedel SAS
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    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/18—Grommets
    • D07B1/185—Grommets characterised by the eye construction
    • 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
    • A62B35/04—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion incorporating energy absorbing means
    • 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
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B9/00—Binding or sealing ends, e.g. to prevent unravelling
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/1004—General structure or appearance
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2069—Climbing or tents

Definitions

  • Tensioning an elastic cord causes a significant tensile force F2 at the second extended portion of rope, said force being greater than that F1 applied to the first portion of shorter rope.
  • Part of the effort is taken up by the friction of the rope on the carabiner between the two portions of rope.
  • the diagram of FIG. 8 illustrates the variation of the elongation as a function of the force, in which the elongation d2 on the second portion of rope is greater than the elongation d1 on the first portion of rope.
  • This difference in elongation of the two portions of rope results in a non-uniform distribution of stresses mechanical forces exerted on the sewing points and the connecting strands when the rope is in the stretched state.
  • the breaking strength of such a fastener conventional sewing is limited.
  • the document FR 2713097 describes a closed damping strap comprising seams intended to break to absorb the shock when the climber.
  • the seams have progressive breaking values, generally obtained by different lengths of the seams.
  • the structure of matter such a strap is static, that is to say that it does not stretch or very little in traction case. It is the break in the seams that helps absorb shock.
  • a first object of the invention consists in improving the mechanical resistance of a tie loop sewn for an elastic cord.
  • the attachment loop according to the invention is characterized in that the seam has a structure asymmetrical in the non-stretched state, allowing a homogeneous distribution of mechanical stresses in the connecting strands when tensioning the loop in the stretched state.
  • the stitches located along of the first portion of rope extend in the untensioned state of the rope, according to a longitudinal staggering L1 greater than that L2 allocated to the points of sewing of the second portion of rope, the variation of the staggering of said sewing points causing a gradual inclination of the connecting strands the along the seam.
  • a second object of the invention relates to the implementation of a method of manufacture of the sewn attachment loop.
  • Progressive sewing is possible by varying the distance of sewing stitch spacing on the first portion of rope, and keeping the same spacing distance for the stitches of the second portion of rope.
  • an attachment loop 10 of an elastic cord 12 is formed from a first portion of rope 14 applied and secured against a second portion of rope 16 by an elongated seam 18.
  • the first portion of rope 14 constitutes the part terminal, which is shorter than the second portion of extended cord 16.
  • the elastic cord 12 has a predetermined longitudinal elasticity, and in the event of a tensile force appearing, the component F2 of the tensile force exerted on the second portion of extended cord 16 is greater than the component F1 to which the first portion of cord 14 is subjected most short.
  • the seam 18 is made in a specific longitudinal configuration making use of a progressive distribution of the stitches.
  • the portion of rope 14 comprises sewing stitches 20A, 22A staggered at regular intervals over a longitudinal distance L1.
  • the other portion of rope 16 has the same number of sewing stitches 20B, 22B staggered over one distance L2. In the untensioned state of the rope, the distance L2 is less than the distance L1.
  • Sewing stitches 20A, 22A; 20B, 22B of the seam 18 are joined together by connecting strands 26.30 respectively arranged on the upper face and the underside of the fastener 10.
  • the second portion of cord 16 of the tie 10 When loading the rope 12 under the action of the tensile force, the second portion of cord 16 of the tie 10 elongates more than the first portion of cord 14. In FIG. 2, the stitches 20A, 22A of the first portion 14 is then located opposite the stitching points 20B, 22B of the second portion 16.
  • FIG. 3 illustrates the connecting strands 26 remain substantially parallel, so as to obtain a homogeneous distribution of mechanical stresses in the seam 18, even if the force F2 applied to the second portion of rope 16 is greater than the force F1 on the first portion of rope 14.
  • Figure 8 illustrates the curves representative of the force of traction as a function of the elongations of the two sections of rope 14, 16, allowing to obtain the same final length L1 + d1 and L2 + d2 for a force F2 greater than F1.
  • the connecting strands 26, 30 of the seam 18 are inclined slightly, but remain parallel to each other. Mechanical resistance to rupture is thus improved, which is particularly advantageous for the safety when the attachment loop 10 is used in climbing, in particular on a rope, or a lanyard.
  • the elongation is zero during the manufacture of the seam.
  • the first portion 14 is sewn in the compressed state (F3 negative) and the other portion of rope 16 is effortlessly sewn F0.
  • the force F2 is greater than F1
  • the elongation d3 of the two portions of rope 14.16 is identical. This results in a homogeneous distribution of the stresses in the connecting strands 26, 30 inclined and parallel ( Figure 7).
  • the thread used for sewing 18 is a fiber-based textile thread synthetic, and of great mechanical resistance.
  • the elastic cord 12 is a classic commercial lifeline, used in climbing or work at great heights to absorb energy in the event of a fall.
  • the stitches on each portion of rope extend along lines parallel to the longitudinal interface 32 joining the two portions of rope.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Pulmonology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Ropes Or Cables (AREA)
  • Sewing Machines And Sewing (AREA)

Description

L'invention est relative à une boucle d'attache cousue pour une corde dynamique ayant une section circulaire et une élasticité longitudinale, ladite boucle comprenant:

  • une première portion de corde appliquée et solidarisée contre une deuxième portion de corde par des moyens de fixation à couture allongée, la longueur de la première portion étant plus courte que la deuxième portion prolongée,
  • une pluralité de spires élémentaires de fil pour constituer ladite couture et comprenant une succession de points de couture réunis entre eux par des brins de liaison.
The invention relates to a sewn attachment loop for a dynamic rope having a circular section and a longitudinal elasticity, said loop comprising:
  • a first portion of rope applied and secured against a second portion of rope by means of fastening with elongated seam, the length of the first portion being shorter than the second extended portion,
  • a plurality of elementary turns of wire to constitute said seam and comprising a succession of sewing points joined together by connecting strands.

La mise sous tension d'une corde élastique, notamment en cas de chute de l'utilisateur, provoque un effort de traction F2 important au niveau de la deuxième portion de corde prolongée, ledit effort étant supérieur à celui F1 appliqué à la première portion de corde plus courte. Une partie de l'effort est repris par le frottement de la corde sur le mousqueton entre les deux portions de corde. Le diagramme de la figure 8 illustre la variation de l'allongement en fonction de l'effort, dans lequel l'allongement d2 sur la deuxième portion de corde est supérieur à l'allongement d1 sur la première portion de corde. Cette différence d'allongement des deux portions de corde entraíne une répartition non uniforme des contraintes mécaniques exercées sur les points de couture et les brins de liaison lorsque la corde se trouve dans l'état tendu .La résistance de rupture d'une telle attache à couture conventionnelle est limitée.Tensioning an elastic cord, especially in the event of a fall the user, causes a significant tensile force F2 at the second extended portion of rope, said force being greater than that F1 applied to the first portion of shorter rope. Part of the effort is taken up by the friction of the rope on the carabiner between the two portions of rope. The diagram of FIG. 8 illustrates the variation of the elongation as a function of the force, in which the elongation d2 on the second portion of rope is greater than the elongation d1 on the first portion of rope. This difference in elongation of the two portions of rope results in a non-uniform distribution of stresses mechanical forces exerted on the sewing points and the connecting strands when the rope is in the stretched state. The breaking strength of such a fastener conventional sewing is limited.

Le document FR 2713097 décrit une sangle fermée amortissante comportant des coutures destinées à se rompre pour amortir le choc lors de la chute du grimpeur. Les coutures ont des valeurs de rupture progressive, généralement obtenues par des longueurs différentes des coutures. La structure de la matière d'une telle sangle est statique, c'est à dire qu'elle ne s'allonge pas ou très peu en cas de traction. C'est la rupture des coutures qui permet d'absorber les chocs.The document FR 2713097 describes a closed damping strap comprising seams intended to break to absorb the shock when the climber. The seams have progressive breaking values, generally obtained by different lengths of the seams. The structure of matter such a strap is static, that is to say that it does not stretch or very little in traction case. It is the break in the seams that helps absorb shock.

Un premier objet de l'invention consiste à améliorer la résistance mécanique d'une boucle d'attache cousue pour une corde élastique. La boucle d'attache selon l'invention est caractérisée en ce que la couture présente une structure dissymétrique dans l'état non tendu, autorisant une répartition homogène des contraintes mécaniques dans les brins de liaison lors de la mise sous tension de la boucle à l'état tendu. A first object of the invention consists in improving the mechanical resistance of a tie loop sewn for an elastic cord. The attachment loop according to the invention is characterized in that the seam has a structure asymmetrical in the non-stretched state, allowing a homogeneous distribution of mechanical stresses in the connecting strands when tensioning the loop in the stretched state.

Selon un mode de réalisation de l'invention, les points de couture situés le long de la première portion de corde s'étendent dans l'état non tendu de la corde, selon un échelonnement longitudinal L1 supérieur à celui L2 affecté aux points de couture de la deuxième portion de corde, la variation de l'échelonnement desdits points de couture provoquant une inclinaison progressive des brins de liaison le long de la couture.According to one embodiment of the invention, the stitches located along of the first portion of rope extend in the untensioned state of the rope, according to a longitudinal staggering L1 greater than that L2 allocated to the points of sewing of the second portion of rope, the variation of the staggering of said sewing points causing a gradual inclination of the connecting strands the along the seam.

Un deuxième objet de l'invention concerne la mise en oeuvre d'un procédé de fabrication de la boucle d'attache cousue.A second object of the invention relates to the implementation of a method of manufacture of the sewn attachment loop.

Il est possible d'effectuer une couture progressive en faisant varier la distance d'espacement des points de couture sur la première portion de corde, et en conservant la même distance d'espacement pour les points de couture de la deuxième portion de corde.Progressive sewing is possible by varying the distance of sewing stitch spacing on the first portion of rope, and keeping the same spacing distance for the stitches of the second portion of rope.

Une autre possibilité consiste à opérer une couture droite en utilisant les étapes suivantes:

  • la première portion de corde est comprimée dans le sens longitudinal lors de la réalisation d'une couture droite,
  • le pas d'espacement des points de couture est conservé constant sur chaque portion de corde pendant ladite opération,
  • le relâchement de la force de compression à la fin de l'opération de couture provoque ensuite la détente de la première portion de corde, pour obtenir ladite structure dissymétrique dans l'état non tendu.
Another possibility is to operate a straight seam using the following steps:
  • the first portion of cord is compressed in the longitudinal direction when making a straight seam,
  • the stitch spacing pitch is kept constant on each portion of cord during said operation,
  • the relaxation of the compressive force at the end of the sewing operation then causes the first portion of cord to relax, to obtain said asymmetrical structure in the untensioned state.

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

  • la figure 1 est une vue schématique d'une boucle d'attache cousue selon l'invention, la boucle étant représentée dans l'état non tendu de repos;
  • les figures 2 et 3 montrent des vues identiques à la figure 1, respectivement lors de la mise en charge et dans l'état tendu de la corde;
  • la figure 4 est une vue en coupe selon la ligne 4-4 de la figure 1;
  • la figure 5 représente un mode de réalisation de la couture selon l'invention, après compression préalable de la portion de corde la plus courte;
  • la figure 6 est une vue identique à la figure 5, après le relâchement de la portion de corde comprimée;
  • la figure 7 est une vue identique à la figure 6, dans l'état tendu de l'attache;
  • la figure 8 illustre la variation de l'allongement en fonction de l'effort pour une corde élastique des figures 1 à 3;
  • la figure 9 montre le diagramme des efforts en fonction de l'allongement de la zone de couture pour la corde selon les figures 5 à 7.
Other advantages and characteristics will emerge more clearly from the description which follows of different embodiments of the invention, given by way of nonlimiting examples, and represented in the appended drawings in which:
  • Figure 1 is a schematic view of a sewn attachment loop according to the invention, the loop being shown in the non-tensioned state of rest;
  • Figures 2 and 3 show views identical to Figure 1, respectively during loading and in the stretched state of the rope;
  • Figure 4 is a sectional view along line 4-4 of Figure 1;
  • FIG. 5 represents an embodiment of the seam according to the invention, after prior compression of the shortest portion of rope;
  • Figure 6 is a view identical to Figure 5, after the release of the compressed rope portion;
  • Figure 7 is a view identical to Figure 6, in the tensioned state of the fastener;
  • FIG. 8 illustrates the variation in the elongation as a function of the force for an elastic cord of FIGS. 1 to 3;
  • FIG. 9 shows the diagram of the forces as a function of the elongation of the sewing area for the rope according to FIGS. 5 to 7.

En référence aux figures 1 à 4, une boucle d'attache 10 d'une corde élastique 12, notamment à section circulaire, est formée à partir d'une première portion de corde 14 appliquée et solidarisée contre une deuxième portion de corde 16 par une couture 18 allongée. La première portion de corde 14 constitue la partie terminale, qui est plus courte que la deuxième portion de corde 16 prolongée.With reference to FIGS. 1 to 4, an attachment loop 10 of an elastic cord 12, in particular with a circular section, is formed from a first portion of rope 14 applied and secured against a second portion of rope 16 by an elongated seam 18. The first portion of rope 14 constitutes the part terminal, which is shorter than the second portion of extended cord 16.

La corde élastique 12 est dotée d'une élasticité longitudinale prédéterminée, et en cas d'apparition d'un effort de traction, la composante F2 de la force de traction s'exerçant sur la deuxième portion de corde 16 prolongée est supérieure à la composante F1 à laquelle est soumise la première portion de corde 14 la plus courte. Pour éviter dans l'état tendu les effets néfastes d'un allongement différentiel exagéré entre les deux portions de corde 14, 16 adjacentes, la couture 18 est réalisée selon une configuration longitudinale spécifique faisant usage d'une répartition progressive des points de couture.The elastic cord 12 has a predetermined longitudinal elasticity, and in the event of a tensile force appearing, the component F2 of the tensile force exerted on the second portion of extended cord 16 is greater than the component F1 to which the first portion of cord 14 is subjected most short. To avoid the harmful effects of stretching in the stretched state exaggerated differential between the two adjacent portions of rope 14, 16, the seam 18 is made in a specific longitudinal configuration making use of a progressive distribution of the stitches.

La portion de corde 14 comporte des points de couture 20A, 22A échelonnés à intervales réguliers sur une distance longitudinale L1. L'autre portion de corde 16 est dotée du même nombre de points de couture 20B, 22B échelonnés sur une distance L2. Dans l'état non tendu de la corde, la distance L2 est inférieure à la distance L1.The portion of rope 14 comprises sewing stitches 20A, 22A staggered at regular intervals over a longitudinal distance L1. The other portion of rope 16 has the same number of sewing stitches 20B, 22B staggered over one distance L2. In the untensioned state of the rope, the distance L2 is less than the distance L1.

Les points de couture 20A,22A; 20B,22B de la couture 18 sont réunis entre eux par des brins de liaisons 26,30 disposés respectivement sur la face supérieure et la face inférieure de l'attache 10.Sewing stitches 20A, 22A; 20B, 22B of the seam 18 are joined together by connecting strands 26.30 respectively arranged on the upper face and the underside of the fastener 10.

Dans l'état non tendu de repos de la couture 18 représenté à la figure 1, la variation des échelonnements L1 et L2 provoque une inclinaison progressive des brins de liaison 26, 30 en direction du bout de la première portion 14.In the non-stretched state of rest of the seam 18 shown in FIG. 1, the variation of the L1 and L2 staggerings causes a gradual inclination connecting strands 26, 30 in the direction of the end of the first portion 14.

Lors de la mise en charge de la corde 12 sous l'action de la force de traction, la deuxième portion de corde 16 de l'attache 10 s'allonge davantage que la première portion de corde 14. Dans la figure 2, les points de couture 20A,22A de la première portion 14 se trouve alors en regard des points de couture 20B, 22B de la deuxième portion 16.When loading the rope 12 under the action of the tensile force, the second portion of cord 16 of the tie 10 elongates more than the first portion of cord 14. In FIG. 2, the stitches 20A, 22A of the first portion 14 is then located opposite the stitching points 20B, 22B of the second portion 16.

Dans l'état tendu représenté à la figure 3, les brins de liaison 26 restent sensiblement parallèles, de manière à obtenir une répartition homogène des contraintes mécaniques dans la couture 18, même si la force F2 appliquée à la deuxième portion de corde 16 est supérieure à la force F1 sur la première portion de corde 14. La figure 8 illustre les courbes représentatives de la force de traction en fonction des allongements des deux tronçons de corde 14, 16, permettant d'obtenir une même longueur finale L1+d1 et L2 + d2 pour une force F2 supérieure à F1. Les brins de liaison 26, 30 de la couture 18 s'inclinent légèrement, mais restent parallèles entre eux. La résistance mécanique à la rupture est ainsi améliorée, ce qui est particulièrement avantageux pour la sécurité lorsque la boucle d'attache 10 est utilisée en escalade, notamment sur une corde de rappel, ou une longe d'assurance.In the stretched state shown in Figure 3, the connecting strands 26 remain substantially parallel, so as to obtain a homogeneous distribution of mechanical stresses in the seam 18, even if the force F2 applied to the second portion of rope 16 is greater than the force F1 on the first portion of rope 14. Figure 8 illustrates the curves representative of the force of traction as a function of the elongations of the two sections of rope 14, 16, allowing to obtain the same final length L1 + d1 and L2 + d2 for a force F2 greater than F1. The connecting strands 26, 30 of the seam 18 are inclined slightly, but remain parallel to each other. Mechanical resistance to rupture is thus improved, which is particularly advantageous for the safety when the attachment loop 10 is used in climbing, in particular on a rope, or a lanyard.

Au lieu de réaliser une couture progressive cousue dans le cas de la figure 1, est également possible de faire une couture 18 droite (figure 5) après compression préalable de la première portion de corde 14 dans le sens de la flèche F3. Le bout de la première portion de corde 14 est ainsi déplacé de la position A vers la position B pendant l'opération de couture, au cours de laquelle tous les brins de liaison 26, 30 s'étendent parallèlement entre eux selon une direction perpendiculaire à l'interface 32 longitudinal entre les deux portions de corde 14, 16. Tous les points de couture sont échelonnés à intervalles réguliers sur la distance L2. La corde relâchée (figure 6) reprend ensuite l'agencement des points évolutifs conforme à la figure 1.Instead of making a progressive seam sewn in the case of Figure 1, it is also possible to make a straight seam 18 (figure 5) after prior compression of the first portion of cord 14 in the direction of the arrow F3. The end of the first portion of rope 14 is thus moved from the position A to position B during the sewing operation, during which all the connecting strands 26, 30 extend parallel to each other in a direction perpendicular to the longitudinal interface 32 between the two portions of cord 14, 16. All stitches are staggered at regular intervals over the distance L2. The relaxed string (Figure 6) then resumes the arrangement of the evolutionary points according to figure 1.

Sur la figure 9, l'allongement est nul lors de la fabrication de la couture. La première portion 14 est cousue dans l'état comprimé (F3 négatif) et l'autre portion de corde 16 est cousue sans effort F0. Dans l'état tendu de la corde, la force F2 est supérieure à F1, mais l'allongement d3 des deux portions de corde 14,16 est identique. Il en résulte une répartition homogène des contraintes dans les brins de liaison 26, 30 inclinés et parallèles (figure 7).In FIG. 9, the elongation is zero during the manufacture of the seam. The first portion 14 is sewn in the compressed state (F3 negative) and the other portion of rope 16 is effortlessly sewn F0. In the stretched state of the rope, the force F2 is greater than F1, but the elongation d3 of the two portions of rope 14.16 is identical. This results in a homogeneous distribution of the stresses in the connecting strands 26, 30 inclined and parallel (Figure 7).

Il est bien entendu possible de modifier la structure de la couture 18 en choisissant d'une manière appropriée le nombre et l'emplacement des points de couture sur chaque portion de corde 14, 16. It is of course possible to modify the structure of the seam 18 in appropriately choosing the number and location of points seam on each portion of rope 14, 16.

Le fil utilisé pour réaliser la couture 18 est un fil textile à base de fibres synthétiques, et de grande résistance mécanique. La corde 12 élastique est une corde d'assurance classique de commerce, utilisée dans le domaine de l'escalade ou des travaux de grandes hauteurs pour absorber l'énergie en cas de chute.The thread used for sewing 18 is a fiber-based textile thread synthetic, and of great mechanical resistance. The elastic cord 12 is a classic commercial lifeline, used in climbing or work at great heights to absorb energy in the event of a fall.

Selon la couture 18 des figures 1 à 7, les points de couture sur chaque portion de corde s'étendent selon des lignes parallèles à l'interface 32 longitudinal d'accolement des deux portions de corde.According to the seam 18 of Figures 1 to 7, the stitches on each portion of rope extend along lines parallel to the longitudinal interface 32 joining the two portions of rope.

Claims (5)

  1. A sewn attachment loop for a flexible rope, notably of circular, cross-section, comprising :
    a first portion of rope (14) applied and securedly affixed against a second portion of rope (16) by fixing means with an elongated seam (18), the length of the first portion being shorter than that of the extended second portion,
    a plurality of elementary turns of thread to constitute said seam and comprising a succession of stitches (20A, 22A; 20B, 22B) joined to one another by joining strands (26, 30),
    characterized in that the seam (18) presents a dissymmetric structure in the non-taut state allowing a homogeneous distribution of the mechanical stresses in the joining strands (26, 30) when the loop is tensed to the taut state.
  2. The attachment loop for a flexible rope according to claim 1, characterized in that the stitches (20A, 22A) situated along the first portion of rope (14) extend in the non-taut state of the rope (12) with a longitudinal staggering L1 greater than that L2 assigned to the stitches (20B, 22B) of the second portion of rope (16), the variation of the staggering of said stitches causing a progressive inclination of the joining strands (26, 30) along the seam (18).
  3. The attachment loop for a flexible rope according to claim 2, characterized in that the stitches on each portion of rope (14, 16) extend according to lines parallel to the longitudinal interface (32) for adjoinment of the two portions of rope.
  4. A process for manufacturing a loop according to one of the claims 1 to 3, characterized in that a progressive seam (18) is achieved by varying'the separating distance between the stitches (20A, 22A) on the first portion of rope (14), and keeping the same separating distance for the stitches (20B, 22B) of the second portion of rope (16).
  5. A process for manufacturing a loop according to one of the claims 1 to 3, characterized by the following stages :
    the first portion of rope (14) is compressed (arrow F3) in the longitudinal direction during the operation of a straight sewing,
    the separating pitch between the stitches is kept constant over each portion of rope during said operation,
    the compression force is released at the end of the sewing operation so as to cause relaxation of the first portion of rope (14) to obtain said dissymmetric structure in the non-taut state.
EP96410101A 1995-10-10 1996-10-01 Sewn attachment loop for an elastic rope, and method of making it Revoked EP0768100B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9512071A FR2739567B1 (en) 1995-10-10 1995-10-10 TIE BUCKLE STITCHED FOR AN ELASTIC ROPE, AND METHOD FOR MANUFACTURING THE BUCKLE
FR9512071 1995-10-10

Publications (2)

Publication Number Publication Date
EP0768100A1 EP0768100A1 (en) 1997-04-16
EP0768100B1 true EP0768100B1 (en) 2001-08-08

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EP96410101A Revoked EP0768100B1 (en) 1995-10-10 1996-10-01 Sewn attachment loop for an elastic rope, and method of making it

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Publication number Priority date Publication date Assignee Title
WO2013079459A1 (en) 2011-11-28 2013-06-06 Teufelberger Gesellschaft M.B.H. Cord eye

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CA2473380A1 (en) 2002-01-18 2003-07-24 Mammut Tec Ag Sling
EP1735228A1 (en) 2004-03-30 2006-12-27 Mamutec AG End connection
SE530356C2 (en) * 2004-11-15 2008-05-13 Poly Produkter Ab Static rope, use of a static rope, and mast or bomb structures including a static rope
USD733525S1 (en) * 2012-08-07 2015-07-07 Zedel Quickdraw
US11793169B2 (en) 2018-06-09 2023-10-24 Barttron Inc. Animal wearable device adjustment mechanisms and methods

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US2122526A (en) * 1937-12-08 1938-07-05 Swiss Knitting Company Connection between two edges of textile material
FR2565112A1 (en) * 1984-01-23 1985-12-06 Frechin Jean Paul Safety strap with damper for mountaineering
US5205803A (en) * 1992-04-06 1993-04-27 Zemitis Martin S Elastic cord apparatus
US5244280A (en) * 1992-05-27 1993-09-14 Megasack Corporation Flexible intermediate bulk containers
FR2713097B3 (en) * 1993-11-29 1996-02-16 Frechin Jean Paul Shock absorbing strap for climbing and mountaineering.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013079459A1 (en) 2011-11-28 2013-06-06 Teufelberger Gesellschaft M.B.H. Cord eye
US9145639B2 (en) 2011-11-28 2015-09-29 Teufelberger Gesellschaft M.B.H. Cord eye

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ES2161339T3 (en) 2001-12-01
US5829374A (en) 1998-11-03
AU6806596A (en) 1997-04-17
EP0768100A1 (en) 1997-04-16
DE69614334T2 (en) 2002-04-25
JPH09291489A (en) 1997-11-11
FR2739567B1 (en) 1997-12-26
FR2739567A1 (en) 1997-04-11
KR970021506A (en) 1997-05-28
AU703695B2 (en) 1999-04-01
DE69614334D1 (en) 2001-09-13

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