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EP1659209B2 - Corde statique, utilisation d'une corde statique et construction d'un mât ou d'un mât de charge comportant une corde statique - Google Patents
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EP1659209B2 - Corde statique, utilisation d'une corde statique et construction d'un mât ou d'un mât de charge comportant une corde statique - Google Patents

Corde statique, utilisation d'une corde statique et construction d'un mât ou d'un mât de charge comportant une corde statique Download PDF

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Publication number
EP1659209B2
EP1659209B2 EP05110532.8A EP05110532A EP1659209B2 EP 1659209 B2 EP1659209 B2 EP 1659209B2 EP 05110532 A EP05110532 A EP 05110532A EP 1659209 B2 EP1659209 B2 EP 1659209B2
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EP
European Patent Office
Prior art keywords
seam
rope
loop
stitches
length
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.)
Expired - Lifetime
Application number
EP05110532.8A
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German (de)
English (en)
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EP1659209A3 (fr
EP1659209B1 (fr
EP1659209A2 (fr
Inventor
Benny Nilsson
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Poly-Produkter AB
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Poly-Produkter AB
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Application filed by Poly-Produkter AB filed Critical Poly-Produkter AB
Publication of EP1659209A2 publication Critical patent/EP1659209A2/fr
Publication of EP1659209A3 publication Critical patent/EP1659209A3/fr
Application granted granted Critical
Publication of EP1659209B1 publication Critical patent/EP1659209B1/fr
Publication of EP1659209B2 publication Critical patent/EP1659209B2/fr
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Classifications

    • 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
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2083—Jackets or coverings
    • D07B2201/209—Jackets or coverings comprising braided structures

Definitions

  • the present invention relates to a static rope according to the precharacterizing clause of Patent Claim 1.
  • the invention also relates to use of a static rope having a covering surrounding a seam fastening together a shorter and a longer rope portion to form a loop, where the covering surrounds the end of the shorter rope portion to form a rigid end stop.
  • the invention relates furthermore to a mast construction comprising a static rope where a loop has been formed by the rope having been bent at one end to form a loop and where the loop is held together by a seam which interconnects a shorter portion of the rope and a longer portion of the rope.
  • a static rope means a rope where constituent fibres have an elasticity of less than 20%.
  • the rope is also designed to have an elasticity of less than 20%.
  • Suitable materials for static ropes are HMPE fibres (made of polyethylene), Kevlar fibres, Vectran, Zylon fibres and polyester fibres. For particularly exacting purposes, it is desirable for the elasticity of the rope to be less than 6%.
  • the end of the rope When the rope is to be used for attaching sail to the rope, the end of the rope has to be provided with a loop.
  • this loop is formed by tying a knot in the rope.
  • a knot reduces the tensile strength of the rope by up to 50% on account of the rope being bent in a disadvantageous way.
  • the loop can be formed by splicing the rope.
  • a tensile strength amounting to 90% of the tensile strength of the unspliced rope can be achieved.
  • a spliced end has a slightly conical piece which extends with increasing diameter towards the start of the loop.
  • Such ropes are a rope with a mantle with an outside diameter of 10 mm and an inside diameter of 7.5 mm where the mantle comprises 24 fibre bundles and a rope with a mantle with an outside diameter of 10 mm and an inside diameter of 8.5 mm where the mantle comprises 32 fibre bundles.
  • Such ropes are usually referred to as eggshell ropes on account of the relative thinness of the mantle. With the mantle being made increasingly thin and at the same time braided harder, it is no longer possible to splice the rope while maintaining a high tensile strength of the rope.
  • the object of the invention is to provide a static rope with a mantle and core with a loop where the loop has been produced in a different way than by a knot or a spliced end.
  • Another object of the invention is to provide a static rope with mantle and core where the tensile strength of the rope with loop applied is high and predictable in the sense that the variation between different ropes produced according to the same method is small.
  • a further object is to provide a rope with a loop where the loop is produced according to an efficient method suitable for industrial mass production. It is furthermore an object to produce a rope where, in tensile tests, breaking of the rope will take place outside the loop at the same time as the ultimate tensile strength of the rope will remain as high as possible.
  • the core In order that the rope will be as good as static, which is necessary in order for it to be possible to fix the sail in a correct way, it is necessary for the core to have a pitch number which exceeds 5, as short-stranded or braided cores have an inherent elasticity. It is also necessary for the core to be stranded or braided in order for the seam to be capable of engaging in as many of the fibre bundles which make up the strands as possible.
  • the seam comprises at least a lower longitudinal seam with a first, narrower width of stitch and an upper longitudinal seam positioned above the said lower longitudinal seam, where the upper longitudinal seam has wider stitches and is positioned in such a way that the two edges of the upper longitudinal seam lie outside the two edges of the lower longitudinal seam.
  • the seam can be made as short as possible.
  • the core is preferably long-stranded or braided with a pitch number of between 5 and 15, preferably between 7 and 11.
  • Suitable lengths of seam are, if the seam is formed by two overlaid longitudinal seams, a length which is greater than half the pitch number and smaller than 3/4 of the pitch number multiplied by the diameter of the rope, or, if the seam is formed by three overlaid longitudinal seams, a length which is greater than a third of the pitch number and smaller than 3/4 of the pitch number multiplied by the diameter of the rope.
  • the seam is to be made with a number of stitches which results in an overall breaking strength of the seam which lies between 70 and 90% of the breaking strength of a corresponding rope without loop.
  • Tests have shown that when a loop is formed by attaching two portions to one another with the aid of a seam, the tensile strength of the rope is reduced. The more stitches applied, the more the tensile strength of the rope is reduced.
  • the seam is stronger than the remaining tensile strength of the rope in order for the tensile strength of the rope to be utilized optimally.
  • the remaining tensile strength of the rope means the strength the rope has at its weakest point, which of course occurs in the region of the loop and where the seam runs through the rope. In these regions, the strength of the rope is reduced in accordance with what was stated above.
  • the seam is to be made with a number of stitches which results in an overall breaking strength of the seam which lies between 70 and 90% of the breaking strength of a corresponding rope without loop.
  • the optimum value of the overall breaking strength of the seam amounts to roughly 80%, the risk of the seam breaking increasing when the value approaches 70% and the overall breaking strength decreasing when the value approaches 90%.
  • the seam is preferably made with an overall breaking strength which lies between 75 and 85%, preferably between 78 and 82%, of the breaking strength of a corresponding rope without loop.
  • the seam is to be made with an overall cross-sectional area of the seam which corresponds to 70-90%, preferably 75-85%, and still more preferably 78-82% of the overall cross-sectional area of the fibre bundles making up the strands.
  • a rope with a loop is therefore obtained where the seam comprises a number of stitches which results in an overall breaking strength of the seam which exceeds the breaking strength of the other parts of the rope when the loop of the rope has been completed at the same time as the breaking strength of the rope is not reduced to an unnecessarily great extent.
  • the seam In order to provide good breaking strength of the rope, it is necessary for the seam to run through as many of the fibre bundles making up the strands as possible.
  • the seam is to be made with such a length that the thread which forms the seam runs through at least 90%, preferably 95%, of all the fibre bundles making up the said three or more strands. Optimally, the thread passes through all the fibre bundles.
  • a covering surrounds the rope along a piece of the rope which extends in such a way that the covering covers the entire seam, surrounds the end of the short portion and extends a little way onto the long portion after the said end of the short portion.
  • the seam can be made wear-resistant at the same time as the end of the shorter portion of that part of the rope which forms the loop can be used as a rigid end stop.
  • the invention also relates to use of a rope as above having a covering where the end of the shorter portion of that part of the rope which forms the loop can be used as a rigid end stop.
  • the invention also relates to a mast construction which comprises a rope according to the invention, in particular a mast construction which comprises a rope according to the description above where the rope extends partly inside a cavity which extends through the length of the mast, out through a lead-through arranged at the top of the mast with the said loop positioned outside the mast, which loop is arranged to be attached to a sail, where a covering is applied to the rope along a piece of the rope which extends in such a way that the covering covers the entire seam, surrounds the end of the short portion and extends a little way onto the long portion after the said end of the short portion, the end of the short portion being used as a rigid end stop.
  • Figure 1 shows diagrammatically a graph of the tensile strength of a seam as a function of the number of stitches making up the seam, and the tensile strength of a rope as a function of the number of stitches sewn into the rope.
  • the tensile strength of the seam is in principle directly proportional to the number of stitches making up the seam. With an increased number of stitches, the tensile strength of the seam increases. In order to obtain a strong seam, the number of stitches is therefore to be large.
  • the tensile strength of an adapted rope with a loop at its end is also shown in comparison with the tensile strength of the same rope in the unadapted state, that is when the rope does not have a loop or anything which is added.
  • the breaking strength of the seam is indicated as a percentage of the unadapted rope, that is the rope before it has been bent and the seam has been applied.
  • the unadapted rope therefore has the breaking strength 100%.
  • the strength of the seam increases proportionally to the number of stitches, at the same time as the breaking strength of the adapted rope falls.
  • the breaking strength of the seam is greater than the breaking strength of the rope, the rope breaks instead of the seam. This break will of course take place in the region where the seam has affected the rope, but it is the rope which breaks and not the seam which breaks.
  • the breaking strength of the seam it is not necessary for the breaking strength of the seam to exceed the breaking strength of the unaffected rope, but it is sufficient if the strength of the seam amounts to between 70 and 90% of the breaking strength of the unaffected rope.
  • a rope is obtained of which the seam is stronger than the rope with the seam.
  • the tensile strength of an unaffected rope can be determined very accurately.
  • the tensile strength of the seam is determined wholly by the number of stitches involved and the quality of the thread. This means that the expert can easily implement the invention with the aid of stated data about the tensile strength of the unaffected rope and the tensile strength of the thread used for the seam. Simple division gives the number of stitches necessary to arrive within the stated range.
  • the magnitude of the negative derivative increases owing to the fact that a perforation effect occurs where a number of needle pricks interact to produce greater overall damage to the rope.
  • the tensile strength of the seam as a function of the number of needle pricks shows barely any statistical variation between different seams but is wholly dependent on the number of needle pricks and the quality of the thread. With a stated tensile strength for a thread, a suitable number of stitches can be determined.
  • the tensile strength of the rope as a function of the number of needle pricks does have a statistical variation, however, which depends on how the needle pricks have perforated the rope. With every needle prick, there is a risk of the prick breaking fibres making up fibre bundles instead of sliding between the individual fibres.
  • the figure shows two curves for the tensile strength of the rope. The upper curve shows the 99th percentile of the ropes, that is the ropes where few breaks happened on the individual fibres and where the rope has thus obtained a high tensile strength. 99% of the ropes have a strength which falls below this tensile strength.
  • the lower curve shows the 1st percentile of the ropes, that is the ropes where many breaks happened on the individual fibres and where the rope has thus obtained a low tensile strength. 1% of the ropes have a strength which falls below this tensile strength.
  • the object of the invention is to produce a reliable seam which will not break before the rope does at the same time as the rope is not weakened to an unnecessarily great extent by an excessive number of stitches.
  • Tests have shown that the optimum value of the strength of the seam in relation to the strength of the unaffected rope amounts to 80%. There is individual variation around the optimum value.
  • very good results are obtained in the respect that extremely few seams break at the same time as the tensile strength of the rope has not been reduced to an unnecessarily great extent if the seam is given a tensile strength amounting to between 78 and 82% of the tensile strength of the unaffected rope.
  • the seam is given a tensile strength amounting to between 75 and 85% of the tensile strength of the unaffected rope.
  • the ropes located within the range between 75 and 78% it was found that less than 5% of the ropes break before the seam at the same time as the ropes have a high tensile strength in the finished state.
  • the seam is given a tensile strength amounting to between 70 and 90% of the tensile strength of the unaffected rope.
  • the strength of the ropes decreased by roughly 4% but that this is necessary in order to prevent the seam breaking before the rope.
  • the test shows that a higher tensile strength measured in % of the original strength of the rope is obtained for compact cores than for corresponding ropes with porous cores when a seam with the same number of stitches is used.
  • the number of stitches necessary can be calculated from a stated tensile strength of the thread.
  • the seam preferably comprises a number of stitches which results in an overall breaking strength of the seam which exceeds the breaking strength of the other parts of the rope when the loop of the rope has been completed.
  • Figure 2 shows a core 1 for a rope.
  • the core comprises three or more strands 2 which are each formed from a number of fibre bundles 3.
  • Figure 2 shows the core 1 surrounded by a braided mantle 4.
  • the function of the mantle is to protect the core from wear, and the function of the core is statically to support the loading of the rope.
  • the core is to be designed with low elasticity.
  • the rope has an elasticity of less than 20%.
  • the core has a high pitch number in excess of 5.
  • the pitch number preferably lies between 5 and 15, suitably between 7 and 11.
  • a high pitch number reduces the elasticity because the fibre lies in the main in the direction of the rope.
  • the core is not completely straight because it is necessary for the seam to engage in the majority of the fibre bundles which form the strands making up the core.
  • the desire to use short seams and for most of the fibre bundles to be caught and the requirement for low elasticity have resulted in the pitch number indicated above being found to be suitable.
  • FIG. 4 shows diagrammatically how the concept of pitch number is to be understood.
  • the figure shows a stranded core with a diameter D.
  • the figure shows a strand K, which runs around the centre of the core.
  • the strand K 1 regains the same original position after the distance H.
  • the pitch number is defined as the quotient H/D.
  • the invention can be used for both stranded and braided cores, so long as the core has a pitch number in excess of 5.
  • the pitch number is preferably between 5 and 15. In a still more preferred embodiment, the pitch number lies between 7 and 11.
  • FIG. 5 shows a rope 5 according to the present invention.
  • the rope is provided with a loop 6 formed at one end of the rope.
  • the loop 6 is formed by the rope being bent at the said end and forming a long portion 7 and a short portion 8, which portions have been positioned next to and in contact with one another and are joined together by a seam 9 which runs along the portions and engages in both portions.
  • the seam 9 comprises at least a lower longitudinal seam 10 with a first, narrower width of stitch B 1 and an upper longitudinal seam 11 positioned above the said lower longitudinal seam 10, the upper longitudinal seam having wider stitches, with a width B 2 , and being positioned in such a way that the two edges 12a, 12b of the upper longitudinal seam 11 lie outside the two edges 13a, 13b of the lower longitudinal seam 10.
  • the seam preferably comprises three overlaid seams, a lower longitudinal seam 10, an intermediate longitudinal seam 14 and an upper longitudinal seam 11.
  • the intermediate longitudinal seam 14 is to be made with wider stitches, with a width B 3 , than the lower longitudinal seam 10, which has a width of stitch B 1 .
  • the intermediate longitudinal seam 14 is positioned in such a way that the two edges 15a, 15b of the intermediate longitudinal seam lie outside the two edges 13a, 13b of the lower longitudinal seam 10.
  • the upper longitudinal seam 11 has wider stitches than the intermediate longitudinal seam 14 and is positioned in such a way that the two edges 12a, 12b of the upper longitudinal seam lie outside the two edges 15a, 15b of the intermediate longitudinal seam.
  • the overlying seam has a length L o which is preferably the same as the length L u of the underlying seam.
  • the overlying seam has a length L o and the intermediate seam has a length L m which are preferably the same as the length L u of the underlying seam.
  • the seam engages in as many fibre bundles as possible.
  • the seam is to be made with such a length that the thread which forms the seam runs through at least 90%, preferably at least 95%, of all the fibre bundles making up the said three or more strands.
  • the seam is made with such a length that the thread engages in all the fibre bundles in the core.
  • the core comprises the strand with a pitch number, the seam will, statistically, catch all the constituent fibre bundles if the seam is made sufficiently long.
  • a suitable dimension of the length of the seam if the seam is formed by two overlaid longitudinal seams, is for the length of the seam to exceed half the pitch number multiplied by the diameter of the rope. If the seam is formed by three overlaid longitudinal seams, the length of the seam suitably exceeds a third of the pitch number multiplied by the diameter of the rope.
  • a model of the core of the rope can be studied where the width and position of the strands are clear. Each strand is formed by a bunch of fibre bundles which each have a certain diameter. By studying the model, it can be established that a stitch will, depending on where on the rope the stitch is made, catch a certain number of fibre bundles.
  • the seam is made entirely straight along the rope, it is possible with a good confidence interval to determine how large a proportion of the fibre bundles have been caught by a seam which has a certain length, although it is not entirely possible to determine exactly how many threads have been caught by each stitch owing to inter alia the fact that it is not possible to state which rotational position strands and fibre bundles making up the strands were in at a specific stitch.
  • the desired percentage of fibre bundles caught can be achieved.
  • the seam is formed by two or three overlaid seams, it is suitable for the length of the seam to be less than three quarters of the pitch number multiplied by the diameter of the rope.
  • the step length of the stitches and the widths of the seams in preferred embodiments should be designed according to a selection or a combination of the following measures:
  • a definition of the step length of a stitch is shown diagrammatically in Figure 6 , where a stitch 16 with the width B and the step length S is shown.
  • Figure 7 shows a rope according to the present invention where a covering 17 surrounds the rope along a piece of the rope which extends in such a way that the covering covers the entire seam 9, surrounds the end 18 of the short portion and extends a little way 19 onto the long portion after the said end 18 of the short portion.
  • the rope is provided with a rigid end stop in the form of the enclosed end 18 of the shorter portion.
  • the end 20 of the seam lies close to the end 18 of the portion.
  • the end of the seam preferably lies at a distance from the end of the portion which is smaller than the diameter than the rope.
  • the covering is preferably made of plastic and has been glued and shrunk onto the rope.
  • Figure 8 shows an upper part of a mast construction where a rope 5 according to the present invention extends partly inside a cavity 21 which extends inside a mast 22, out through a lead-through 22a arranged at the top 23 of the mast with the said loop 6 positioned outside the mast, which loop is arranged to be attached to a sail, where a covering 17 is applied to the rope along a piece of the rope which extends in such a way that the covering covers the entire seam, surrounds the end of the short portion and extends a little way onto the long portion after the said end of the short portion, the end of the short portion being used as a rigid end stop.
  • the invention relates to a static rope having an outer braided mantle and an inner core formed by three or more strands which each comprise a set of fibre bundles, where the core and the mantle are each made from synthetic fibres with an elasticity of less than 20%, where the rope is provided with a loop fashioned at one end of the rope which is formed by the rope being bent at the said end and forming, to create the said loop, two portions starting from the loop, a long and a short portion, which portions are positioned next to and in contact with one another and are joined together by a seam which runs along the portions and engages in both portions, and where the said seam is made so that the seam is stronger than the rope affected by the seam and the loop, the rope breaking before the seam under great loading at the same time as the seam is weaker than the unaffected rope, that is to say the rope without loop and seam.
  • an advantageous embodiment also consists of a static rope having an outer braided mantle and an inner core formed by three or more strands which each comprise a set of fibre bundles, where the core and the mantle are each made from synthetic fibres with an elasticity of less than 20%, where the rope is provided with a loop fashioned at one end of the rope which is formed by the rope being bent at the said end and forming, to create the said loop, two portions starting from the loop, a long and a short portion, which portions are positioned next to and in contact with one another and are joined together by a seam which runs along the portions and engages in both portions, and where the said seam is made so that the seam is stronger than the rope affected by the seam and the loop and where a covering is arranged to surround the rope along a piece of the rope which extends in

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  • Tents Or Canopies (AREA)
  • Emergency Lowering Means (AREA)

Claims (20)

  1. Corde statique (5) ayant une enveloppe tressée extérieure (4) et un noyau tressé ou à brins interne (1) formé de trois brins ou plus (2) qui comprennent chacun un ensemble de faisceaux de fibres (3), où le noyau (1) et l'enveloppe (4) sont chacun réalisés en fibres synthétiques avec une élasticité inférieure à 20 %, où la corde (5) est dotée d'une boucle (6) façonnée à une extrémité de ladite corde (5) qui est formée en repliant la corde (5) à ladite extrémité et en formant, afin de créer ladite boucle (6), deux parties partant de la boucle, une partie longue et une partie courte (7,8), lesdites parties étant positionnées l'une près de l'autre et en contact l'une avec l'autre et étant jointes ensemble par une couture (9) qui s'étend le long des parties (7,8) et est en prise avec les deux parties, caractérisée en ce que le noyau (1) de la corde (5) a un nombre de pas qui s'élève à au moins 5, et en ce que la couture (9) comprend un nombre de points qui donne une résistance à la rupture globale de la couture (9), située entre 70 et 90 % de la résistance à la rupture d'une corde correspondante (5) sans boucle (6), et en ce que ladite couture comprend au moins une couture longitudinale inférieure (10), avec une première largeur plus étroite de point et une couture longitudinale supérieure (11) positionnée au-dessus de ladite couture longitudinale inférieure (10), où la couture longitudinale supérieure (11) a des points plus larges et est positionnée de sorte que les deux bords (12a, 12b) de la couture longitudinale supérieure (11) se trouvent hors des deux bords (13a, 13b) de la couture longitudinale inférieure (10).
  2. Corde selon la revendication 1, caractérisée en ce que la couture (9) comprend un certain nombre de points, qui donnent une résistance à la rupture globale de ladite couture, située entre 75 et 85 % de la résistance à la rupture d'une corde correspondante (5) sans boucle (6).
  3. Corde selon la revendication 1, caractérisée en ce que la couture (9) comprend un certain nombre de points, qui donnent une résistance à la rupture globale de ladite couture (9), située entre 78 et 82 % de la résistance à la rupture d'une corde correspondante (5) sans boucle (6).
  4. Corde selon l'une quelconque des revendications précédentes, caractérisée en ce que la couture est constituée d'un fil du même matériau que le noyau (1) de la corde et en ce que la superficie transversale globale de la couture (9), qui correspond à la superficie transversale du fil qui forme la couture, multipliée par le nombre de points, correspond à 70-90 %, de préférence 75-85 % et de manière davantage préférée 78-82 % de la superficie transversale globale des faisceaux de fibres qui constituent les brins.
  5. Corde selon l'une quelconque des revendications précédentes, caractérisée en ce que la couture (9) comprend un certain nombre de points, qui donnent une résistance à la rupture globale de ladite couture (9) qui dépasse la résistance à la rupture des autres parties de la corde (5) quand la boucle (6) de la corde (5) a été complétée.
  6. Corde selon l'une quelconque des revendications précédentes, caractérisée en ce que la couture (9) a une longueur (L) telle que le fil qui forme la couture (9) s'étend à travers au moins 90 % de tous les faisceaux de fibres qui constituent lesdits trois brins ou plus (2).
  7. Corde selon la revendication 6, caractérisée en ce que la couture (9) a une longueur (L) telle que le fil qui forme la couture (9) s'étend à travers au moins 95 % de tous les faisceaux de fibres qui constituent lesdits trois brins ou plus (2).
  8. Corde selon la revendication 6, caractérisée en ce que la couture (9) a une longueur (L) telle que le fil qui forme la couture (9) s'étend à travers tous les faisceaux de fibres qui constituent lesdits trois brins ou plus (2).
  9. Corde selon l'une quelconque des revendications précédentes, caractérisée en ce que la couture comprend trois coutures superposées (10, 11, 14), une couture longitudinale inférieure (10), une couture longitudinale intermédiaire (14) et une couture longitudinale supérieure (11), où la couture longitudinale intermédiaire (14) a des points plus larges que la couture longitudinale inférieure (10) et est positionnée de sorte que les deux bords (15a, 15b) de la couture longitudinale intermédiaire (14) soient placés hors des deux bords (13a, 13b) de la couture longitudinale inférieure (10) et la couture longitudinale supérieure (11) a des points plus larges que la couture longitudinale intermédiaire (14) et est positionnée de sorte que les deux bords (12a, 12b) de la couture longitudinale supérieure (11) se trouvent hors des deux bords (15a, 15b) de la couture longitudinale intermédiaire (14).
  10. Corde selon la revendication 1 ou 9, caractérisée en ce que la différence de largeur entre une couture inférieure et une couture suivante superposée (9, 10) s'élève à au moins deux fois le diamètre des faisceaux de fibres qui font partie desdits brins (2), deux points superposés étant ainsi en prise avec son propre faisceau de fibres.
  11. Corde selon l'une quelconque des revendications précédentes, caractérisée en ce que la longueur d'échelon (S) d'un point est telle qu'entre un point et le suivant, la couture se met en prise dans un premier faisceau de fibres et un faisceau de fibres adjacent suivant.
  12. Corde selon la revendication 11, caractérisée en ce que la longueur d'échelon (S) des points s'élève au diamètre d'un faisceau de fibres multiplié par la cotangente de l'angle de pas.
  13. Corde selon l'une quelconque des revendications précédentes, caractérisée en ce que la couture est formée par deux coutures longitudinales superposées (9, 10) et en ce que la longueur (L) de la couture dépasse la moitié du nombre de pas, multipliée par le diamètre de la corde.
  14. Corde selon l'une quelconque des revendications précédentes, caractérisée en ce que la couture est formée par trois coutures longitudinales superposées (9, 10, 14) et en ce que la longueur (L) de la couture dépasse un tiers du nombre de pas multiplié par le diamètre de la corde.
  15. Corde selon l'une quelconque des revendications précédentes, caractérisée en ce que la longueur (L) de la couture est inférieure à trois quarts du nombre de pas, multipliés par le diamètre de la corde.
  16. Corde selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un revêtement (17) entoure la corde (5) le long d'un morceau de la corde, qui s'étend de sorte que le revêtement (17) couvre toute la couture (9), entoure l'extrémité (18) de la partie courte (8) et s'étende sur une courte distance (19) sur la partie longue (7) après ladite extrémité (18) de la partie courte (8).
  17. Corde selon la revendication 16, caractérisée en ce que le revêtement (17) est constitué de plastique et a été collé et contracté sur la corde.
  18. Construction de mât ou construction de bôme comprenant une corde selon l'une quelconque des revendications précédentes.
  19. Construction de mât ou construction de bôme selon la revendication 18, caractérisée en ce que ladite corde (5) s'étend partiellement à l'intérieur d'une cavité (21) à l'intérieur d'un mât ou d'une flèche (22), à l'extérieur à travers une traversée (22a) disposé dans le mât ou la flèche (22), ladite boucle (6) étant positionnée hors du mât ou de la flèche, ladite boucle (6) étant disposée de façon à être fixée à une voile, où un revêtement (17) est appliqué à la corde (5) le long d'un morceau de la corde qui s'étend de sorte que le revêtement (17) couvre toute la couture (9), entoure l'extrémité (18) de la partie courte (8) et s'étende sur une courte distance (19) sur la partie longue (7) après ladite extrémité (18) de la partie courte (8), l'extrémité (18) de la partie courte (8) étant utilisée comme une butée d'extrémité rigide.
  20. Construction de mât ou construction de bôme selon la revendication 19, caractérisée en ce que le revêtement est constitué de plastique et a été contracté et collé sur la corde.
EP05110532.8A 2004-11-15 2005-11-09 Corde statique, utilisation d'une corde statique et construction d'un mât ou d'un mât de charge comportant une corde statique Expired - Lifetime EP1659209B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0402852A SE530356C2 (sv) 2004-11-15 2004-11-15 Statiskt rep, användning av ett statiskt rep samt mast- eller bombkonstruktioner innefattande ett statiskt rep

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EP1659209A2 EP1659209A2 (fr) 2006-05-24
EP1659209A3 EP1659209A3 (fr) 2007-05-16
EP1659209B1 EP1659209B1 (fr) 2011-05-11
EP1659209B2 true EP1659209B2 (fr) 2018-05-09

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AT (1) ATE509154T1 (fr)
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AT512185B1 (de) 2011-11-28 2013-06-15 Teufelberger Gmbh Gespleisstes seilende
US8689534B1 (en) 2013-03-06 2014-04-08 Samson Rope Technologies Segmented synthetic rope structures, systems, and methods
US9340925B2 (en) 2013-03-15 2016-05-17 Samson Rope Technologies Splice systems and methods for ropes
US10377607B2 (en) 2016-04-30 2019-08-13 Samson Rope Technologies Rope systems and methods for use as a round sling
CN113047072A (zh) * 2019-12-29 2021-06-29 盐城神力制绳有限公司 超高分子量聚乙烯缆绳
CN111501385A (zh) * 2020-04-30 2020-08-07 鲁普耐特集团有限公司 高缓冲拒水动力挽索及其制作方法
CN112921496A (zh) * 2021-01-27 2021-06-08 鲁普耐特集团有限公司 一种树上作业耐磨耐高温挽索及其制作方法
CA3245641A1 (fr) * 2022-03-08 2023-09-14 Coastline Cordage Group Ltd. Lien de dégagement par rupture
IT202300001833A1 (it) 2023-02-06 2024-08-06 Camp Spa Elemento di collegamento per il collegamento di materiale a una corda
FR3163279A1 (fr) * 2024-06-18 2025-12-19 Zedel Dispositif d’accrochage comportant une zone de fixation entre deux brins, longe comportant un tel dispositif d’accrochage et procédé de fabrication d’un tel dispositif d’accrochage

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SE530356C2 (sv) 2008-05-13
SE0402852L (sv) 2006-05-16
EP1659209A3 (fr) 2007-05-16
SE0402852D0 (sv) 2004-11-15
EP1659209B1 (fr) 2011-05-11
ATE509154T1 (de) 2011-05-15
EP1659209A2 (fr) 2006-05-24

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