EP0768100B1 - Genähte Befestigungsschlinge für ein elastisches Seil, sowie Verfahren zu deren Herstellung - Google Patents

Genähte Befestigungsschlinge für ein elastisches Seil, sowie Verfahren zu deren Herstellung 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
Authority
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
Other languages
English (en)
French (fr)
Other versions
EP0768100A1 (de
Inventor
Jean Marc Hede
Paul Petzl
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
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Application filed by Zedel SAS filed Critical Zedel SAS
Publication of EP0768100A1 publication Critical patent/EP0768100A1/de
Application granted granted Critical
Publication of EP0768100B1 publication Critical patent/EP0768100B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • 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)

Claims (5)

  1. Genähte Befestigungsschlinge für ein elastisches Seil, insbesondere mit kreisförmigem Querschnitt, die umfasst:
    einen ersten Seilabschnitt (14), der gegen einen zweiten Seilabschnitt (16) gedrückt und mit diesem fest verbunden ist, und zwar mit Hilfe von Befestigungsmitteln mit länglicher Naht (18), wobei der erste Abschnitt kürzer ist als der zweite, verlängerte Abschnitt,
    eine Mehrzahl elementarer Fadenwindungen, die die Naht bilden und eine Folge von Nähstichen (20A, 22A; 20B, 22B) umfassen, die miteinander durch Verbindungsfäden (26,30) verbunden sind,
    dadurch gekennzeichnet, dass die Naht (18) im ungespannten Zustand eine unsymmetrische Struktur aufweist, die eine homogene Verteilung der mechanischen Beanspruchung in den Verbindungsfäden (26, 30) ermöglicht, wenn auf die Schlinge im gespannten Zustand ein Zug ausgeübt wird.
  2. Befestigungsschlinge für ein elastisches Seil nach Anspruch 1, dadurch gekennzeichnet, dass sich die Nähstiche (20A, 22A), die entlang des ersten Seilabschnitts (14) angeordnet sind, im ungespannten Zustand der Schlinge (12) nach einer Längs-Staffelung L1 erstrecken, die größer als L2 ist, nach der sich die Nähstiche (20B, 22B) des zweiten Seilabschnitts (16) erstrecken, wobei die unterschiedliche Staffelung der Nähstiche eine progressive Neigung der Verbindungsfäden (26, 30) entlang der Naht (18) bewirkt.
  3. Befestigungsschlinge für ein elastisches Seil nach Anspruch 2, dadurch gekennzeichnet, dass sich die Nähstiche im jeweiligen Seilabschnitt (14,16) entlang von Linien erstrecken, die parallel zur Längs-Berührungs-Grenzfläche (32) der beiden Seilabschnitte sind.
  4. Verfahren zur Herstellung einer Schlinge nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass eine Naht (18) hergestellt wird, die insofern progressiv ist, als der Abstand zwischen den Nähstichen (20A, 22A) des ersten Seilabschnitts (14) schwankt und bei den Nähstichen (20B, 22B) des zweiten Seilabschnitts (16) der gleiche Abstand beibehalten wird.
  5. Verfahren zur Herstellung einer Schlinge nach einem der Ansprüche 1 bis 3, das durch folgende Schritte gekennzeichnet ist:
    der erste Seilabschnitt (14) wird bei der Herstellung einer geraden Naht in Längsrichtung komprimiert (Pfeil F3),
    der Abstand zwischen den Nähstichen wird während dieses Vorgangs in jedem Seilabschnitt konstant gehalten,
    am Ende des Nähvorgangs wird die Komprimierungskraft gelöst, wodurch dann der erste Seilabschnitt (14) entspannt wird, damit die im ungespannten Zustand unsymmetrische Struktur entsteht.
EP96410101A 1995-10-10 1996-10-01 Genähte Befestigungsschlinge für ein elastisches Seil, sowie Verfahren zu deren Herstellung Revoked EP0768100B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9512071 1995-10-10
FR9512071A FR2739567B1 (fr) 1995-10-10 1995-10-10 Boucle d'attache cousue pour une corde elastique, et procede de fabrication de la boucle

Publications (2)

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

Family

ID=9483531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96410101A Revoked EP0768100B1 (de) 1995-10-10 1996-10-01 Genähte Befestigungsschlinge für ein elastisches Seil, sowie Verfahren zu deren Herstellung

Country Status (8)

Country Link
US (1) US5829374A (de)
EP (1) EP0768100B1 (de)
JP (1) JPH09291489A (de)
KR (1) KR970021506A (de)
AU (1) AU703695B2 (de)
DE (1) DE69614334T2 (de)
ES (1) ES2161339T3 (de)
FR (1) FR2739567B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013079459A1 (de) 2011-11-28 2013-06-06 Teufelberger Gesellschaft M.B.H. Seilauge

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7422255B2 (en) * 2002-01-18 2008-09-09 Suxhess, Hess Board & Process Consulting Sling
EP1735228A1 (de) 2004-03-30 2006-12-27 Mamutec AG Endverbindung
SE530356C2 (sv) * 2004-11-15 2008-05-13 Poly Produkter Ab Statiskt rep, användning av ett statiskt rep samt mast- eller bombkonstruktioner innefattande ett statiskt rep
USD747176S1 (en) * 2012-08-07 2016-01-12 Zedel Quickdraw
US11793169B2 (en) 2018-06-09 2023-10-24 Barttron Inc. Animal wearable device adjustment mechanisms and methods

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2122526A (en) * 1937-12-08 1938-07-05 Swiss Knitting Company Connection between two edges of textile material
FR2565112A1 (fr) * 1984-01-23 1985-12-06 Frechin Jean Paul Sangle d'assurance avec amortisseur pour l'alpinisme
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 (fr) * 1993-11-29 1996-02-16 Frechin Jean Paul Sangle amortissante pour l'escalade et l'alpinisme.

Cited By (2)

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

Also Published As

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

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