EP2468933B1 - Sicherheitslaufleine und ihr Herstellungsverfahren - Google Patents

Sicherheitslaufleine und ihr Herstellungsverfahren Download PDF

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Publication number
EP2468933B1
EP2468933B1 EP11354079.3A EP11354079A EP2468933B1 EP 2468933 B1 EP2468933 B1 EP 2468933B1 EP 11354079 A EP11354079 A EP 11354079A EP 2468933 B1 EP2468933 B1 EP 2468933B1
Authority
EP
European Patent Office
Prior art keywords
lanyard
weaving
sheath
threads
zone
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.)
Not-in-force
Application number
EP11354079.3A
Other languages
English (en)
French (fr)
Other versions
EP2468933A1 (de
Inventor
Jean-Marc Hede
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zedel SAS
Original Assignee
Zedel SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zedel SAS filed Critical Zedel SAS
Publication of EP2468933A1 publication Critical patent/EP2468933A1/de
Application granted granted Critical
Publication of EP2468933B1 publication Critical patent/EP2468933B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00Woven fabrics characterised by their shape
    • D03D3/005Tapes or ribbons not otherwise provided for
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0043Lifelines, lanyards, and anchors therefore
    • A62B35/0075Details of ropes or similar equipment, e.g. between the secured person and the lifeline or anchor
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00Double or multi-ply fabrics not otherwise provided for
    • D03D11/02Fabrics formed with pockets, tubes, loops, folds, tucks or flaps
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/56Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00Woven fabrics characterised by their shape
    • D03D3/02Tubular fabrics
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00Woven fabrics characterised by their shape
    • D03D3/08Arched, corrugated, or like fabrics
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/04Safety 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/13Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1362Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3008Woven fabric has an elastic quality
    • Y10T442/3024Including elastic strand or strip
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3179Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified

Definitions

  • the invention relates to a safety lanyard, movable by elasticity between a rest position and a stretched position, comprising a tubular sheath made of a non-stretchable material, and a set of elastic son bonded to the sheath.
  • lanyards formed of an elastic band, which is sewn a peripheral sheath.
  • the aforementioned band and sheath are first of all separately formed, generally by weaving, and then this strip is inserted in the stretched state inside the sheath. Finally, these two elements are mutually secured by means of seams, made at their two axial ends. When the band returns to its state of rest, it then deforms the sheath in the manner of a bellows.
  • a safety lanyard according to the preamble of claim 1 and a method of manufacturing a lanyard are known from the document US-2005/0189169 .
  • lanyards are not totally satisfactory, particularly because of their relatively low elongation rate.
  • This rate which corresponds to the ratio of the lengths presented respectively by the loin in maximum stretching position and in rest position, is a fundamental parameter of a lanyard.
  • a lanyard a first end is generally attached to the point of attachment of a harness, must advantageously have a length as variable as possible.
  • this lanyard when its other end is not hooked, this lanyard must be as short as possible in the rest position, to allow its easy handling by the user.
  • this lanyard must be the longest possible stretched configuration, to allow a movement without blocking the user.
  • the invention aims to provide a safety lanyard with a rate of elongation much higher than that allowed in the previous solutions. It also aims to achieve such a lanyard, which has a high resistance and avoids the use of a winding mechanism.
  • the lanyard according to the invention is remarkable in that the elastic threads define at least one longitudinal weaving zone, in which they are woven on a single face of the sheath, each weaving zone being adapted to form, in the rest position, a bending zone of the loin, in which the elastic threads are folded on themselves.
  • the elastic yarns of the front lanyards have a generally rectilinear configuration, both at rest and in a stretched position.
  • the total size of the lanyard at rest corresponds to the length of this elastic core. Therefore, the possibility of elongation is only allowed by the stretching capacity of the elastic threads, generally 100%.
  • the elongation capacity can reach 500%, without necessarily constraining the elastic threads in a maximal way.
  • the invention also relates to a method of manufacturing a lanyard as above, in which the elastic threads are stretched, these drawn threads are woven with at least a first series of threads forming a first face of the sheath, without the weaving with the yarns of the opposite face, so as to form at least one weaving zone, and releasing the tension exerted on these elastic yarns, so that the or each weaving zone forms a bending zone of the loin.
  • the lanyard 1 comprises a tubular sheath 10, made essentially of a non-stretchable material, and a set of elastic son described in more detail below.
  • 11 and 12 denote the two opposite faces of this sheath, which has a flattened shape.
  • the non-stretchable material which is for example polyamide or high-tenacity polyester, has a very low elongation capacity under normal use of the loin. This capacity is much lower than that of the constituent elastic material of the yarns, namely for example an elastomer such as latex or Iycra TM.
  • the sheath is woven from warp yarns and weft yarns.
  • a majority of CH11 and CH12 warp yarns are used as non-stretchable material intended to form the two faces 11 and 12.
  • a certain proportion of CH2 elastic warp yarns, known as yarns, are also used.
  • link chain This is particularly visible in the figure 3 , which also illustrates weft threads T1, T3 and T5 of the first face of the sheath.
  • the proportion of the CH2 bonding yarns, relative to the set of warp yarns used for a given face, namely CH11 + CH2, or else CH12 + CH2, is between 5 and 20%. This range is relative to the number of elastic son CH2, it being understood that these are present between 15 and 30% by weight of all the warp son, because their transverse dimension is greater.
  • the bonding yarns are woven in the stretched state, with an elongation ratio of between 50 and 100%, in particular close to 70%. Furthermore, non-stretchable weft yarns are used, it being understood that certain elastic yarns can be used, without being decisive.
  • CH2 link chain son are first woven only with the weft son T1, T3, ..., T2n-1 of the first face 11 of the sheath, but not with those T2, .. ., T2n of the other face 12.
  • These CH2 bonding yarns are then woven only with the weft threads T2n + 2, ..., T2m of the other face 12 of the sheath, along a second longitudinal fastening zone Z2, but on the other hand not with those T2n + 1, ..., T2m + 1 of the first face 11.
  • each zone has an axial dimension, or length, greater than 3 cm (centimeters), and a typical length of 4 cm.
  • a lanyard comprises between 15 and 30 successive securing zones, as described above.
  • the elastic nature of the threads contributes to shortening them.
  • the local connection between the elastic son and the sheath creates a withdrawal of the bonded face thereof, relative to its free face.
  • the elastic threads tend to fold on themselves.
  • the successive zones of fastening Z1 to Zn then form bending zones of the lanyard, generally defining portions of a circle whose centers C1 to Cn are arranged alternately on either side of the core. It is advantageous for these zones to extend over a majority or even substantially the entire length of the lanyard. Indeed, it is conceivable that such bending zones can reduce all the more the size of the lanyard at rest.
  • the figure 4 illustrates the cooperation of the various warp and weft threads of the figure 2 , after folding on themselves elastic threads.
  • each bending zone extends at an angle slightly greater than 180 °, so that two transverse lines of junction are adjacent. This reduces, to an additional extent, the overall size of the lanyard in its rest position.
  • the securing zones are substantially of the same length, so that the connecting lines are aligned. Under these conditions, XX defines the longitudinal axis of the lanyard in the rest position, which passes through these different lines.
  • the figure 5 represents the two functional positions of the lanyard, namely its rest position for which no effort is exerted on the lanyard, as well as its maximum stretching position. In the rest position, the elastic threads are either relaxed or subjected to a slight residual stress.
  • E is the total size of the lanyard at rest, corresponding to the distance separating its two axial ends. Due to the presence of the many bending zones, it is conceivable that this size is relatively small.
  • the figure 6 is an alternative embodiment of the lanyard 101 of the invention, wherein the elastic warp son are woven on a single face 111 of the sheath 110, substantially on all of the latter.
  • the weaving mode is then analogous to that of the first embodiment, illustrated in FIG. figure 2 .
  • the tension is released on the elastic threads, at the end of this weaving, the latter fold back on themselves in the manner of a snail, namely that they form at all points a rounding whose center C is invariant .

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Woven Fabrics (AREA)
  • Ropes Or Cables (AREA)

Claims (10)

  1. Sicherheitsseil (1; 101), das elastisch beweglich ist zwischen einer Ruhe- und einer gedehnten Position, das einen röhrenförmigen Mantel (10; 110) aus einem nicht dehnbaren Material und eine Gruppe elastischer Fasern (CH2) umfasst, die mit dem Mantel verbunden sind, dadurch gekennzeichnet, dass die elastischen Fasern (CH2) mindestens einen länglichen Webbereich (Z1, Zn) bilden, in dem sie auf einer einzigen Seite (11, 12; 111) des Mantels gewebt sind, wobei jeder Webbereich geeignet ist, in Ruhestellung einen Biegebereich des Seils zu bilden, in dem die elastischen Fasern umgebogen sind.
  2. Sicherheitsseil nach Anspruch 1, dadurch gekennzeichnet, dass jeder Biegebereich (Z1, ..., Zn) im Ruhezustand einen kreisförmigen Abschnitt bildet, dessen Mittelpunkt (C1, ..., Cn) sich an der Vorderseite der Hülse befindet, die mit den elastischen Fasern verwoben ist.
  3. Sicherheitsseil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die axiale Abmessung jedes Webbereichs (Z1, ..., Zn) mit den elastischen Fasern größer als 3 cm, vorzugsweise um die 4 cm ist.
  4. Sicherheitsseil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Webbereiche (Z1, ..., Zn) mit den elastischen Fasern jeweils abwechselnd auf der einen (11, 12) und dann der anderen (12, 11) der Seiten des Mantels (10) verlaufen.
  5. Sicherheitsseil nach Anspruch 4, dadurch gekennzeichnet, dass sich jeder Biegebereich (Z1, ..., Zn) über mindestens eine halbe Drehung erstreckt, insbesondere entsprechend einem Winkel von 180 bis 270°, sodass zwei Verbindungslinien (L1, ..., Ln) zwischen aufeinanderfolgenden Webbereichen aneinander angrenzen.
  6. Sicherheitsseil nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Verbindungslinien (L1, ..., Ln) zwischen aufeinanderfolgenden Webbereichen in Ruhestellung entsprechend einer Längsachse (X-X) des Seils aufeinander ausgerichtet sind.
  7. Sicherheitsseil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die elastischen Fasern auf einer einzigen Seite (111) des Mantels (110) gewebt sind, sodass das Seil (101) in Ruhestellung die Form einer Schnecke hat.
  8. Sicherheitsseil nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der oder die längliche(n) Webbereich(e) sich über den überwiegenden Teil der Axialabmessung des Seils erstrecken, insbesondere im Wesentlichen über dessen gesamte Axialabmessung.
  9. Sicherheitsseil nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die elastischen Fasern Kettfäden (CH2) bilden und diese elastischen Fasern bei einem gegebenen Webbereich 5 bis 20% aller Kettfäden (CH11 + CH2, CH12 + CH2) ausmachen.
  10. Verfahren zur Herstellung eines Seils nach einem der vorstehenden Ansprüche, bei dem die elastischen Fasern (CH2) gereckt werden, diese
    gereckten Fasern mit mindestens einer ersten Reihe Fäden (CH11, CH12), die eine erste Seite (11, 12) des Mantels bilden, verwoben werden, ohne sie mit den Fasern (CH12, CH11) der entgegengesetzten Seite (12, 11) zu verweben, sodass mindestens ein Webbereich (Z1, ..., Zn) entsteht, und die auf diese elastischen Fasern ausgeübte Spannung aufgehoben wird, sodass der oder jeder Webbereich einen Biegebereich des Seils bildet.
EP11354079.3A 2010-12-22 2011-12-14 Sicherheitslaufleine und ihr Herstellungsverfahren Not-in-force EP2468933B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1005042A FR2969500B1 (fr) 2010-12-22 2010-12-22 Longe de securite et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP2468933A1 EP2468933A1 (de) 2012-06-27
EP2468933B1 true EP2468933B1 (de) 2015-07-22

Family

ID=45418560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11354079.3A Not-in-force EP2468933B1 (de) 2010-12-22 2011-12-14 Sicherheitslaufleine und ihr Herstellungsverfahren

Country Status (4)

Country Link
US (1) US8967600B2 (de)
EP (1) EP2468933B1 (de)
CN (1) CN102587031B (de)
FR (1) FR2969500B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150231424A1 (en) * 2014-02-19 2015-08-20 Jung-sok KIM Band for impact absorption
FR3023564B1 (fr) * 2014-07-11 2017-03-24 Perrin & Fils Tissu et article d'habillement comprenant des zones de compression et methode d'obtention d'un tel tissu.
FR3037811B1 (fr) * 2015-06-29 2018-05-25 Zedel Sangle formant ceinture et/ou paire de tours de cuisse de harnais d'encordement, et harnais d'encordement
US10702723B2 (en) 2016-12-12 2020-07-07 Msa Technology, Llc Harness with structural tear tape
US10799731B2 (en) * 2016-12-12 2020-10-13 Msa Technology, Llc Harness with integrated energy absorber
US10814149B2 (en) * 2017-11-07 2020-10-27 Jimi Ip, Llc Redundant adjustable lanyard
JP6425364B1 (ja) * 2018-05-31 2018-11-21 株式会社ツインズ 弾性変形可能な組紐
CN113046889B (zh) * 2021-03-22 2022-03-29 东华大学 一种力递增式坠落防护用缓冲包及制作方法
CN114134612B (zh) * 2021-12-10 2023-06-20 东莞特大纺织科技有限公司 弹力缓冲织带及编织方法、编织设备

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GB1183922A (en) * 1967-01-30 1970-03-11 William Patton Sales Ltd An improved Braided Cord and method and means for the production of such Cord
US3811480A (en) * 1970-06-15 1974-05-21 Arova Schaffhausen Ag Multi-layer fabric
GB1536354A (en) 1976-07-08 1978-12-20 Britax Ltd Energy absorber
DE3129857A1 (de) * 1981-07-29 1983-02-17 Kumag B.V., 3075 Rotterdam Abschleppseil
FR2643273B1 (fr) * 1989-02-17 1991-05-03 Beal Ets Corde d'assurance pour escalade et son procede de fabrication
US5792713A (en) * 1994-07-19 1998-08-11 Gividi Italia S.P.A. Glass fabric produced with zero-twist yarn
US6085802A (en) * 1999-02-02 2000-07-11 Silberberg; Abraham A. Shock absorbing woven webbing
US20050189169A1 (en) * 2004-03-01 2005-09-01 Hajime Tanaka Shock absorbing lanyards
CN201092599Y (zh) * 2007-05-23 2008-07-30 东莞润达弹性织造有限公司 一种织物结构加强的管状织物
US20100093258A1 (en) * 2008-10-15 2010-04-15 Robert Arthur Glenn Elastic Fabrics And Methods And Apparatus For Making The Same
JP4538534B1 (ja) * 2009-12-18 2010-09-08 M.I.J.イシカワ株式会社 伸縮性を備えた細幅織物

Also Published As

Publication number Publication date
CN102587031A (zh) 2012-07-18
FR2969500A1 (fr) 2012-06-29
FR2969500B1 (fr) 2013-01-25
EP2468933A1 (de) 2012-06-27
US20120161376A1 (en) 2012-06-28
CN102587031B (zh) 2014-12-10
US8967600B2 (en) 2015-03-03

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