WO1998041284A1 - Shock absorbing safety belt - Google Patents

Shock absorbing safety belt Download PDF

Info

Publication number
WO1998041284A1
WO1998041284A1 PCT/FR1998/000432 FR9800432W WO9841284A1 WO 1998041284 A1 WO1998041284 A1 WO 1998041284A1 FR 9800432 W FR9800432 W FR 9800432W WO 9841284 A1 WO9841284 A1 WO 9841284A1
Authority
WO
WIPO (PCT)
Prior art keywords
juxtaposed
plies
parts
strap
strands
Prior art date
Application number
PCT/FR1998/000432
Other languages
French (fr)
Inventor
Dominique Farge
Pierre-Yves Godais
Original Assignee
Faure Roux (S.A.R.L.)
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9504996&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1998041284(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Faure Roux (S.A.R.L.) filed Critical Faure Roux (S.A.R.L.)
Priority to EP98913833A priority Critical patent/EP0923403B1/en
Priority to AU68388/98A priority patent/AU6838898A/en
Priority to DE69813736T priority patent/DE69813736T2/en
Publication of WO1998041284A1 publication Critical patent/WO1998041284A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/04—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

Definitions

  • the invention relates to the technical sector of safety means for absorbing a fall, braking a speed and more generally, absorbing energy.
  • shock absorbing straps are composed of two independent plies woven over a determined length and linked together by interlacing of an additional so-called binding chain in order to constitute a uniform section.
  • the tying chain constitutes a point of connection and of rupture during a tensile force exerted on the free parts of the plies which thus tends to separate the two plies linked against the resistance formed by the woven tying threads acting as successive shock absorbers until they break.
  • This type of damping strap comprises a part, of determined length, according to which the two plies of wires are juxtaposed and intimately linked under the conditions indicated described in the patent cited above, for example.
  • One of the ends of this part where the two layers are intimately linked has two unitary strands independent of each other.
  • one of these strands is arranged to be connected to a fixed part, while the other strand is arranged to be connected to a mobile part which can move under a given force. If a tensile or other force is exerted on at least one of the strands, this results in a tensioning which relates to the level of the binding chain up to the point of rupture between the two intimately linked plies. This results, concomitantly, in a successive and continuous tearing of the two linked plies, acting as shock absorbers and energy absorbers.
  • the other end of the linked part of the two plies, opposite the two free strands connected to the fixed and mobile points, may have two free strands connected to each other, to form a loop of security.
  • these safety straps must meet specific standards.
  • the pull-out force between the two intimately linked layers must correspond to numerical values.
  • the object of the invention is to remedy these drawbacks in a simple, safe, effective and rational manner.
  • the problem which the invention proposes to solve is being able, with respect to a standard width of straps, to double the pulling force, or else to very significantly reduce the width of a standard strap while keeping the same force for this purpose. tearing, as required by safety standards.
  • a shock absorbing strap has been designed and developed consisting of two plies of juxtaposed wires, and having a new structure making it possible to obtain such results.
  • the damping strap successively has:
  • the free ends of the first and third parts are not linked to each constitute two free strands connected together so as to form a safety loop.
  • the first and third parts are intimately linked by assembly means capable of acting as a shock absorber by allowing the plies of each of said layers to be torn continuously and gradually parts when the strands of the second part are subjected to a tensile force;
  • the plies are obtained by weaving.
  • the means of assembling the two plies of the first and third parts consist of an additional binding chain.
  • Figure 1 is a perspective view of the strap according to the features of the invention.
  • Figure 2 is a schematic view of the strap in the normal position of use, that is to say when no tensile or other force is exerted on the free strands.
  • Figure 3 is a view corresponding to Figure 2, showing the beginning of tearing of the two juxtaposed and intimately linked parts of the strap when the free strands are subjected to a tensile force.
  • FIG. 4 is a view corresponding to FIG. 3, in the position of maximum tearing of the two juxtaposed and intimately linked plies of the strap.
  • the shock absorbing safety strap according to the invention consists of two plies of juxtaposed wires (1) and (2).
  • the strap has a first part (A) of determined length (L) where the two plies (1) and (2) are juxtaposed and intimately linked with capacity to tear under an effort of traction.
  • the strap has a third part (B) of reduced length and where the two plies (1) and (2), juxtaposed are free relative to each other, to form two strands (la) and (lb).
  • This second part is extended by a third part (C) of determined length (L) where the two juxtaposed sheets (1) and (2) are intimately linked in the same way as for part (A) with tearing capacity under a tensile force.
  • the free strands (la) and (lb) are intended to be connected respectively to a fixed point and to a mobile point or to two mobile points or even to two fixed points.
  • the first and third parts (A) and (C) are of equal length (L).
  • the free ends of parts (A) and (C), opposite the ends where the strands (la) and (lb) are formed are not linked, to each constitute two free strands (le) (ld) and ( 2c) (2d), interconnected by sewing (3) or otherwise, so as to form a safety loop.
  • Parts (A) and (C) are juxtaposed and intimately linked by assembly means capable of acting as shock absorbers, allowing continuous and progressive tearing of the plies of each of said parts (A) and (C ), when the strands (la) and / or (lb) are subjected to a tensile force (FI) and (F2).
  • FI tensile force
  • F2 tensile force
  • the binding of the two parts (A) and (C) is carried out according to the technical characteristics defined in patent FR 2371533. It is recalled in this regard that the binding warp threads are successively fixed during the assembly of the plies and differently with respect to each other, with regard to the variable strokes of passage of the weft threads in an irregular tying, so that their interlacing differs longitudinally and transversely, to constitute a plurality of different successive groups allowing a progressive and sliding of each group, when the other groups are energized. These arrangements allow regular tearing and slowing down of the mobile part of the strap, in relation to the strength of the tying chain.
  • a woven safety strap having only one part where the two plies of threads are juxtaposed and intimately linked should be woven according to a width (1) corresponding to the force criteria d uprooting dictated by safety standards.
  • the shock-absorbing strap can be woven in a reduced width, always corresponding to the pull-out force criteria dictated by safety standards.
  • the safety strap according to the invention finds numerous applications both for braking in a substantially vertical plane and in a substantially horizontal plane, the aim being to absorb a shock after having connected the two strands (la) and ( lb) to a fixed and / or mobile structure.
  • the woven safety strap according to the invention finds application in the safety harnesses used by people.
  • One of the strands (la) is connected in this case, to a fixed part of a structure for example, while the other strand (lb) is connected to a part of the harness.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)
  • Woven Fabrics (AREA)

Abstract

The invention concerns a shock absorbing belt consisting of two juxtaposed yarn laps, having successively: a first portion (A) of predetermined length where the two juxtaposed laps (1) and (2) are closely linked with tear strength under tension pressure; a second portion (B), of reduced length, where the two juxtaposed laps (1) and (2) are free relative to each other to constitute two sides (1a-1b) to be respectively linked to one fixed point and to one mobile point or to two mobile points; a third portion (C), of predetermined length, where the two juxtaposed laps are closely linked with tear strength under tension pressure.

Description

Sangle amortisseuse de sécurité. Safety cushioning strap.
L'invention se rattache au secteur technique des moyens de sécurité pour amortir une chute, freiner une vitesse et plus généralement, absorber une énergie.The invention relates to the technical sector of safety means for absorbing a fall, braking a speed and more generally, absorbing energy.
Il est connu, dans de nombreuses applications, d'utiliser des sangles faisant office d'amortisseur pour absorber l'énergie extérieure, connues sous le nom de sangles amortisseuses. Pour l'essentiel, ces sangles amortisseuses sont composées de deux nappes indépendantes tissées sur une longueur déterminée et reliées entre elles par entrecroisement d'une chaîne supplémentaire dite de liage afin de constituer une section uniforme. La chaîne de liage constitue un point de liaison et de rupture lors d'un effort de traction exercé sur les parties libres des nappes qui tend ainsi a séparer les deux nappes liées à l' encontre de la résistance formée par les fils de liage tissés agissant comme amortisseurs successifs jusqu'à leur rupture.It is known, in many applications, to use straps acting as a shock absorber to absorb external energy, known as shock absorbing straps. Essentially, these shock absorbing straps are composed of two independent plies woven over a determined length and linked together by interlacing of an additional so-called binding chain in order to constitute a uniform section. The tying chain constitutes a point of connection and of rupture during a tensile force exerted on the free parts of the plies which thus tends to separate the two plies linked against the resistance formed by the woven tying threads acting as successive shock absorbers until they break.
On peut citer par exemple l'enseignement du brevet FR 2371533 qui décrit un procédé de tissage et de liage de sangles amortisseuses. Selon ce procédé, les fils de liage sont tissés successivement par rapport aux fils de trame suivant un liage irrégulier de manière à ce que leur entrecroisement diffère de proche en proche en interdisant tout glissement au moment de la rupture, en constituant ainsi une pluralité de groupes différents. Il en résulte une rupture progressive de chaque groupe, au moment où les autres groupes sont sous tension, afin d'obtenir une régularité de déchirement et un ralentissement d'une partie de la sangle, en rapport avec la résistance de la chaîne de liage. Ce type de sangle amortisseuse comprend une partie, de longueur déterminée, selon laquelle les deux nappes de fils sont juxtaposées et intimement liées dans les conditions indiquées décrites dans le brevet précédemment cité, par exemple. L'une des extrémités de cette partie où les deux nappes sont intimement liées, présente deux brins unitaires indépendants l'un de l'autre. Par exemple, l'un de ces brins est agencé pour être relié à une partie fixe, tandis que l'autre brin est agencé pour être relié à une partie mobile pouvant se déplacer sous un effort donné. Si un effort de traction ou autre est exercé sur l'un des brins au moins, il en résulte une mise en tension qui se reporte au niveau de la chaîne de liage jusqu'au point de rupture entre les deux nappes intimement liées. Il en résulte, de manière concomitante, un déchirement successif et continu des deux nappes liées, en faisant office d'amortisseurs et d'absorbeurs d'énergie.We can cite for example the teaching of patent FR 2371533 which describes a process for weaving and tying damping straps. According to this process, the binding threads are woven successively with respect to the weft threads in an irregular bonding so that their interlacing differs step by step, preventing any slipping at the time of breakage, thus constituting a plurality of groups different. This results in a progressive rupture of each group, at the moment when the other groups are under tension, in order to obtain a regularity of tearing and a slowing down of a part of the strap, in relation to the resistance of the tying chain. This type of damping strap comprises a part, of determined length, according to which the two plies of wires are juxtaposed and intimately linked under the conditions indicated described in the patent cited above, for example. One of the ends of this part where the two layers are intimately linked, has two unitary strands independent of each other. For example, one of these strands is arranged to be connected to a fixed part, while the other strand is arranged to be connected to a mobile part which can move under a given force. If a tensile or other force is exerted on at least one of the strands, this results in a tensioning which relates to the level of the binding chain up to the point of rupture between the two intimately linked plies. This results, concomitantly, in a successive and continuous tearing of the two linked plies, acting as shock absorbers and energy absorbers.
A noter également que l'autre extrémité de la partie liée des deux nappes, à l'opposé des deux brins libres reliés aux points fixe et mobile, peut présenter deux brins libres reliés l'un à l'autre, pour constituer une boucle de sécurité.It should also be noted that the other end of the linked part of the two plies, opposite the two free strands connected to the fixed and mobile points, may have two free strands connected to each other, to form a loop of security.
Bien évidemment, ces sangles de sécurité doivent répondre à des normes particulières. Notamment la force d'arrachement entre les deux nappes intimement liées doit correspondre à des valeurs numériques. Pour obtenir cette force d'arrachement, il est donc nécessaire de relier les deux nappes au moyen d'une chaîne supplémentaire de liage ayant une densité de fils relativement importante, qui, généralement, oblige d'utiliser le métier à tisser au maximum de ses capacités. Il n'est donc pas possible, selon la structure de la sangle tissée telle que définie, de diminuer la largeur du tissage. L'invention s'est fixée pour but de remédier à ces inconvénients, de manière simple, sûre, efficace et rationnelle.Obviously, these safety straps must meet specific standards. In particular, the pull-out force between the two intimately linked layers must correspond to numerical values. To obtain this tearing force, it is therefore necessary to connect the two plies by means of an additional binding chain having a relatively high density of threads, which generally requires the use of the loom to the maximum of its capabilities. It is therefore not possible, depending on the structure of the woven strap as defined, to reduce the width of the weaving. The object of the invention is to remedy these drawbacks in a simple, safe, effective and rational manner.
Le problème que se propose de résoudre l'invention est de pouvoir, par rapport à une largeur standard de sangles, doubler la force d'arrachement, ou bien diminuer très sensiblement la largeur d'une sangle standard tout en gardant la même force pour cet arrachement, telle qu'imposée par les normes de sécurité.The problem which the invention proposes to solve is being able, with respect to a standard width of straps, to double the pulling force, or else to very significantly reduce the width of a standard strap while keeping the same force for this purpose. tearing, as required by safety standards.
Pour résoudre un tel problème, il a été conçu et mis au point une sangle amortisseuse constituée de deux nappes de fils juxtaposées, et présentant une structure nouvelle permettant d'obtenir de tels résultats. Selon l'invention, la sangle amortisseuse présente successivement :To solve such a problem, a shock absorbing strap has been designed and developed consisting of two plies of juxtaposed wires, and having a new structure making it possible to obtain such results. According to the invention, the damping strap successively has:
- une première partie de longueur déterminée où les deux nappes juxtaposées sont intimement liées avec capacité de déchirement sous un effort de traction,- a first part of determined length where the two juxtaposed sheets are intimately linked with the ability to tear under a tensile force,
- une deuxième partie, de longueur réduite, où les deux nappes juxtaposées sont libres l'une par rapport à l'autre pour constituer deux brins destinés à être reliés respectivement à un point fixe et à un point mobile ou à deux points mobiles,a second part, of reduced length, where the two juxtaposed sheets are free relative to one another to constitute two strands intended to be connected respectively to a fixed point and to a mobile point or to two mobile points,
- une troisième partie, de longueur déterminée, où les deux nappes juxtaposées sont intimement liées avec capacité de déchirement sous un effort de traction.- A third part, of determined length, where the two juxtaposed layers are intimately linked with the ability to tear under a tensile force.
Compte-tenu de ces dispositions techniques, il en résulte que les forces de traction ou autres exercées sur les deux brins libres de la sangle reliés aux points fixe et /ou mobile, sont réparties dans deux directions directement opposées et non plus selon une seule direction.In view of these technical provisions, it follows that the tensile or other forces exerted on the two free strands of the strap connected to the fixed and / or mobile points, are distributed in two directions directly opposite and no longer in one direction.
Pour résoudre le problème posé d'obtenir un amortissement progressif et régulier les première et troisième parties où les nappes sont juxtaposées sont intimement liées, sont de longueurs égales.To solve the problem of obtaining a progressive and regular damping the first and third parts where the sheets are juxtaposed are intimately linked, are of equal lengths.
Pour résoudre le problème posé d'obtenir une parfaite sécurité, notamment lorsque les deux nappes sont totalement déchirées sous l'effort de traction subie, les extrémités libres des première et troisième parties ne sont pas liées pour constituer chacune deux brins libres reliés entre eux de manière à former une boucle de sécurité.To solve the problem of obtaining perfect security, in particular when the two plies are completely torn under the tensile force undergone, the free ends of the first and third parts are not linked to each constitute two free strands connected together so as to form a safety loop.
Compte-tenu du problème posé d'absorber l'énergie, les première et troisième partie sont intimement liées par des moyens d'assemblage aptes à faire office d'amortisseur en permettant de déchirer en continu et de manière progressive, les nappes de chacune desdites parties lorsque les brins de la deuxième partie sont soumis à un effort de traction ;In view of the problem posed of absorbing energy, the first and third parts are intimately linked by assembly means capable of acting as a shock absorber by allowing the plies of each of said layers to be torn continuously and gradually parts when the strands of the second part are subjected to a tensile force;
Avantageusement, les nappes sont obtenues par tissage. Les moyens d'assemblage des deux nappes des première et troisième parties sont constitués par une chaîne supplémentaire de liage.Advantageously, the plies are obtained by weaving. The means of assembling the two plies of the first and third parts consist of an additional binding chain.
L'invention est exposée ci-après plus en détail à l'aide des figures des dessins annexés, dans lesquels :The invention is set out below in more detail with the aid of the figures of the appended drawings, in which:
La figure 1 est une vue en perspective de la sangle selon les caractéristiques de l'invention. La figure 2 est une vue à caractère schématique de la sangle en position normale d'utilisation, c'est-à-dire lorsqu'aucune force de traction ou autre n'est exercée sur les brins libres.Figure 1 is a perspective view of the strap according to the features of the invention. Figure 2 is a schematic view of the strap in the normal position of use, that is to say when no tensile or other force is exerted on the free strands.
La figure 3 est une vue correspondant à la figure 2, montrant le début de déchirement des deux parties juxtaposées et intimement liées de la sangle lorsque les brins libres sont soumis à un effort de traction.Figure 3 is a view corresponding to Figure 2, showing the beginning of tearing of the two juxtaposed and intimately linked parts of the strap when the free strands are subjected to a tensile force.
La figure 4 est une vue correspondant à la figure 3, en position de déchirement maximum des deux nappes juxtaposées et intimement liées de la sangle.FIG. 4 is a view corresponding to FIG. 3, in the position of maximum tearing of the two juxtaposed and intimately linked plies of the strap.
La sangle amortisseuse de sécurité, selon l'invention, est constituée de deux nappes de fils juxtaposées (1) et (2).The shock absorbing safety strap according to the invention consists of two plies of juxtaposed wires (1) and (2).
Selon une caractéristique à la base de l'invention, la sangle présente une première partie (A) de longueur déterminée (L) où les deux nappes (1) et (2) sont juxtaposées et intimement liées avec capacité de déchirement sous un effort de traction. A la suite de cette première partie, la sangle présente une troisième partie (B) de longueur réduite et où les deux nappes (1) et (2), juxtaposées sont libres l'une par rapport à l'autre, pour constituer deux brins (la) et (lb). Cette deuxième partie est prolongée par une troisième partie (C) de longueur déterminée (L) où les deux nappes juxtaposées (1) et (2) sont intimement liées de la même façon que pour la partie (A) avec capacité de déchirement sous un effort de traction. Les brins libres (la) et (lb) sont destinés à être reliés respectivement à un point fixe et à un point mobile ou à deux points mobiles ou bien encore à deux points fixes.According to a characteristic at the base of the invention, the strap has a first part (A) of determined length (L) where the two plies (1) and (2) are juxtaposed and intimately linked with capacity to tear under an effort of traction. Following this first part, the strap has a third part (B) of reduced length and where the two plies (1) and (2), juxtaposed are free relative to each other, to form two strands (la) and (lb). This second part is extended by a third part (C) of determined length (L) where the two juxtaposed sheets (1) and (2) are intimately linked in the same way as for part (A) with tearing capacity under a tensile force. The free strands (la) and (lb) are intended to be connected respectively to a fixed point and to a mobile point or to two mobile points or even to two fixed points.
Les première et troisième parties (A) et (C) sont de longueurs égales (L). Les extrémités libres des parties (A) et (C), à l'opposé des extrémités où sont formés les brins (la) et (lb) ne sont pas liées, pour constituer chacune deux brins libres (le) (ld) et (2c) (2d), reliés entre eux par couture (3) ou autrement, de manière à former une boucle de sécurité. Les parties (A) et (C) sont juxtaposées et intimement liées par des moyens d'assemblage aptes à faire office d'amortisseurs, en permettant de déchirer en continu et de manière progressive les nappes de chacune desdites parties (A) et (C), lorsque les brins (la) et/ou (lb) sont soumis à un effort de traction (FI) et (F2). Par exemple, lorsque les nappes (1) et (2) sont obtenues par tissage, les moyens d'assemblage des parties (A) et (C) sont constitués par une chaîne supplémentaire de liage.The first and third parts (A) and (C) are of equal length (L). The free ends of parts (A) and (C), opposite the ends where the strands (la) and (lb) are formed are not linked, to each constitute two free strands (le) (ld) and ( 2c) (2d), interconnected by sewing (3) or otherwise, so as to form a safety loop. Parts (A) and (C) are juxtaposed and intimately linked by assembly means capable of acting as shock absorbers, allowing continuous and progressive tearing of the plies of each of said parts (A) and (C ), when the strands (la) and / or (lb) are subjected to a tensile force (FI) and (F2). For example, when the plies (1) and (2) are obtained by weaving, the means for assembling the parts (A) and (C) consist of an additional binding chain.
Par exemple, le liage des deux parties (A) et (C) s'effectue selon les caractéristiques techniques définies dans le brevet FR 2371533. On rappelle à cet égard que les fils de chaîne de liage sont fixés successivement lors de l'assemblage des nappes et différemment les uns par rapport aux autres, en regard des coups variables de passage des fils de trame suivant un liage irrégulier, de manière que leur entrecroisement diffère longitudinalement et transversalement, pour constituer une pluralité de groupes successifs différents permettant une rupture progressive et sans glissement de chaque groupe, au moment où les autres groupes sont sous tension. Ces dispositions permettent une régularité de déchirement et un ralentissement de la partie mobile de la sangle, en rapport avec la résistance de la chaîne de liage.For example, the binding of the two parts (A) and (C) is carried out according to the technical characteristics defined in patent FR 2371533. It is recalled in this regard that the binding warp threads are successively fixed during the assembly of the plies and differently with respect to each other, with regard to the variable strokes of passage of the weft threads in an irregular tying, so that their interlacing differs longitudinally and transversely, to constitute a plurality of different successive groups allowing a progressive and sliding of each group, when the other groups are energized. These arrangements allow regular tearing and slowing down of the mobile part of the strap, in relation to the strength of the tying chain.
Bien évidemment et comme indiqué, on n'exclut pas d'autres modes de liage des deux nappes, en ayant pour objectif d'obtenir un déchirement progressif de ces dernières en faisant office d'absorbeurs d'énergie, en fonction des forces de traction appliquées et devant correspondre aux normes de sécurité. Par exemple, les deux nappes peuvent être assemblées par couture. Compte-tenu de ces dispositions, il apparaît donc que lorsque les deux brins (la) et (lb) sont soumis par exemple à deux forces de traction (FI) et (F2), la force d'arrachement résultante est répartie, généralement par moitié, au niveau des deux parties (A) et (C) et non plus au niveau de seulement une seule partie présentant les deux nappes juxtaposées et intimement liées.Obviously and as indicated, we do not exclude other methods of binding the two layers, with the aim of obtaining a gradual tearing of the latter by acting as energy absorbers, depending on the traction forces applied and which must meet safety standards. For example, the two tablecloths can be assembled by sewing. In view of these provisions, it therefore appears that when the two strands (la) and (lb) are subjected for example to two tensile forces (FI) and (F2), the resulting breakout force is distributed, generally by half, at the level of the two parts (A) and (C) and no longer at the level of only a single part having the two plies juxtaposed and intimately linked.
Ces dispositions permettent donc de doubler la force de traction exercée sur les brins (la) et (lb) tout en permettant d'obtenir les mêmes effets d'amortissement, par rapport à une sangle de sécurité, selon l'état de la technique connu, considéré selon la même largeur, entre lisière. La conception spécifique de la sangle, permet également, pour une même force de traction ou d'arrachement exercée sur les brins (la) et (lb) de réaliser une sangle de largeur réduite par rapport à l'état de la technique.These provisions therefore make it possible to double the tensile force exerted on the strands (la) and (lb) while making it possible to obtain the same damping effects, compared with a safety strap, according to the known prior art. , considered by the same width, between selvedge. The specific design of the strap also allows, for the same pulling or tearing force exerted on the strands (la) and (lb) to produce a strap of reduced width compared to the prior art.
Autrement dit, selon l'état de la technique, une sangle tissée de sécurité ne présentant qu'une seule partie où les deux nappes de fils sont juxtaposées et intimement liées, devrait être tissée selon une largeur (1) correspondant aux critères de force d'arrachement dictés par les normes de sécurité. Selon l'invention, la sangle amortisseuse peut être tissée selon une largeur réduite, en correspondant toujours aux critères de force d'arrachement dictés par les normes de sécurité. La sangle de sécurité selon l'invention trouve de nombreuses applications aussi bien pour assurer un freinage dans un plan sensiblement vertical que dans un plan sensiblement horizontal, le but recherché étant d'amortir un choc après avoir relié les deux brins (la) et (lb) à une structure fixe et/ou mobile.In other words, according to the state of the art, a woven safety strap having only one part where the two plies of threads are juxtaposed and intimately linked, should be woven according to a width (1) corresponding to the force criteria d uprooting dictated by safety standards. According to the invention, the shock-absorbing strap can be woven in a reduced width, always corresponding to the pull-out force criteria dictated by safety standards. The safety strap according to the invention finds numerous applications both for braking in a substantially vertical plane and in a substantially horizontal plane, the aim being to absorb a shock after having connected the two strands (la) and ( lb) to a fixed and / or mobile structure.
Avantageusement, la sangle tissée de sécurité selon l'invention trouve une application dans les harnais de sécurité utilisés par les personnes. L'un des brins (la) est relié dans ce cas, à une partie fixe d'une structure par exemple, tandis que l'autre brin (lb) est relié à une partie du harnais.Advantageously, the woven safety strap according to the invention finds application in the safety harnesses used by people. One of the strands (la) is connected in this case, to a fixed part of a structure for example, while the other strand (lb) is connected to a part of the harness.
De manière parfaitement connue, les deux parties (A) et (C) de la sangle sont repliées pour constituer un ensemble compact.In a perfectly known manner, the two parts (A) and (C) of the strap are folded back to form a compact unit.
Les avantages ressortent bien de la description. The advantages are apparent from the description.

Claims

REVENDICATIONS
-1- Sangle amortisseuse constituée par deux nappes de fils juxtaposées, caractérisée en ce qu'elle présente successivement :-1- Shock absorbing strap constituted by two layers of juxtaposed wires, characterized in that it successively presents:
- une première partie (A) de longueur déterminée où les deux nappes juxtaposée (1) et (2) sont intimement liées avec capacité de déchirement sous un effort de traction,- a first part (A) of determined length where the two juxtaposed plies (1) and (2) are intimately linked with capacity to tear under a tensile force,
- une deuxième partie (B), de longueur réduite, où les deux nappes juxtaposées (1) et (2) sont libres l'une par rapport à l'autre pour constituer deux brins (la-lb) destinés à être reliés respectivement à un point fixe et à un point mobile ou à deux points mobiles,- a second part (B), of reduced length, where the two juxtaposed sheets (1) and (2) are free relative to one another to form two strands (la-lb) intended to be connected respectively to a fixed point and a mobile point or two mobile points,
- une troisième partie (C), de longueur déterminée, où les deux nappes juxtaposées sont intimement liées avec capacité de déchirement sous un effort de traction.- A third part (C), of determined length, where the two juxtaposed sheets are intimately linked with the ability to tear under a tensile force.
-2- Sangle selon la revendication 1, caractérisée en ce que les première et troisième parties (A) et (C) où les nappes (1) et (2) sont juxtaposées et intimement liées, sont de longueurs égales (L).-2- Strap according to claim 1, characterized in that the first and third parts (A) and (C) where the plies (1) and (2) are juxtaposed and intimately linked, are of equal length (L).
-3- Sangle selon la revendication 1, caractérisée en ce que les extrémités libres des première et troisième parties (A) et (C) ne sont pas liées pour constituer chacune deux brins libres (lc-2c) et (ld-2d) reliés entre eux de manière à former une boucle de sécurité.-3- Strap according to claim 1, characterized in that the free ends of the first and third parts (A) and (C) are not linked to each constitute two free strands (lc-2c) and (ld-2d) connected between them so as to form a safety loop.
-4- Sangle selon la revendication 1 , caractérisée en ce que les première et troisième partie (A) et (C) sont intimement liées par des moyens d' assemblage aptes à faire office d'amortisseur en permettant de déchirer en continu et de manière progressive, les nappes (1) et (2) de chacune desdites parties (A) et (C) lorsque les brins (la-lb) de la deuxième partie (B) sont soumis à un effort de traction ;-4- Strap according to claim 1, characterized in that the first and third parts (A) and (C) are intimately linked by means assembly capable of acting as a shock absorber by tearing continuously and progressively, the plies (1) and (2) of each of said parts (A) and (C) when the strands (la-lb) of the second part (B) are subjected to a tensile force;
-5- Sangle selon la revendication 1, caractérisée en ce que les nappes (1) et (2) sont obtenues par tissage.-5- Strap according to claim 1, characterized in that the plies (1) and (2) are obtained by weaving.
-6- Sangle selon la revendication 5, caractérisée en ce que les moyens d'assemblage des deux nappes (1) et (2) des première et deuxième parties (A) et (C) sont constitués par une chaîne supplémentaire de liage.-6- Strap according to claim 5, characterized in that the means for assembling the two plies (1) and (2) of the first and second parts (A) and (C) are constituted by an additional chain of binding.
-7- Sangle selon l'une quelconque des revendications 1 à 6 et son application à un harnais de sécurité. -7- Strap according to any one of claims 1 to 6 and its application to a safety harness.
PCT/FR1998/000432 1997-03-14 1998-03-05 Shock absorbing safety belt WO1998041284A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP98913833A EP0923403B1 (en) 1997-03-14 1998-03-05 Shock absorbing safety belt
AU68388/98A AU6838898A (en) 1997-03-14 1998-03-05 Shock absorbing safety belt
DE69813736T DE69813736T2 (en) 1997-03-14 1998-03-05 SHOCK ABSORPTION BELT

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR97/03384 1997-03-14
FR9703384A FR2760648B1 (en) 1997-03-14 1997-03-14 SAFETY SHOCK ABSORBER STRAP

Publications (1)

Publication Number Publication Date
WO1998041284A1 true WO1998041284A1 (en) 1998-09-24

Family

ID=9504996

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1998/000432 WO1998041284A1 (en) 1997-03-14 1998-03-05 Shock absorbing safety belt

Country Status (5)

Country Link
EP (1) EP0923403B1 (en)
AU (1) AU6838898A (en)
DE (1) DE69813736T2 (en)
FR (1) FR2760648B1 (en)
WO (1) WO1998041284A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002047764A1 (en) * 2000-12-13 2002-06-20 Grzegorz Laszkiewicz Shock absorber
US7665575B2 (en) 2004-03-01 2010-02-23 Ykk Corporation Of America Shock absorbing fabric structures
US7726350B2 (en) 2005-08-16 2010-06-01 Ykk Corporation Of America Energy absorbing webbings
US8316988B2 (en) 2010-08-12 2012-11-27 Ykk Corporation Of America Shock absorbing fabric structures
US8387749B2 (en) 2004-03-01 2013-03-05 Ykk Corporation Of America Shock absorbing fabric structures
US9328436B2 (en) 2013-03-14 2016-05-03 Ykk Corporation Of America Energy absorbing fabric and method of manufacturing same
EP3093048A1 (en) 2015-05-12 2016-11-16 Zedel Tearing strap and method for manufacturing same
WO2017078669A1 (en) 2015-11-02 2017-05-11 Honeywell International Inc. Sealed handle with integrated shock absorber

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9931653B2 (en) 2005-04-19 2018-04-03 Warren Environmental, Inc. Method and system for preheating epoxy coatings for spray application
US8919666B2 (en) 2005-04-19 2014-12-30 Warren Environmental, Inc. Method and system for preheating epoxy coatings for spray application
US7644986B2 (en) 2006-03-09 2010-01-12 Skjp Holdings, Llc Child restraint device with energy absorbing regions
DE102011003579A1 (en) * 2011-02-03 2012-08-09 Aloys Wobben harness
US20130105246A1 (en) * 2011-10-28 2013-05-02 D B Industries, Inc. Energy absorber
DE102012212640A1 (en) * 2012-07-18 2014-01-23 Bornack Gmbh & Co. Kg Tripping device for a fall arrester

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3444957A (en) * 1967-12-13 1969-05-20 Rose Mfg Co Shock absorber for safety belt
FR2371533A1 (en) * 1976-11-17 1978-06-16 Faure Roux Ets Ch Woven safety strap - has two webs joined by warp yarns which break on impact to absorb shock
GB2191560A (en) * 1986-05-20 1987-12-16 Troll Safety Equipment Ltd Safety lanyard
WO1995001815A2 (en) * 1993-07-06 1995-01-19 Latchways Limited Energy absorbing fall arrest device
FR2709970A1 (en) * 1993-09-13 1995-03-24 Charlet Moser Sa Safety device with energy absorption for mountaineering and climbing
GB2292782A (en) * 1994-09-02 1996-03-06 Marling Leek Ltd Shock absorber

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3444957A (en) * 1967-12-13 1969-05-20 Rose Mfg Co Shock absorber for safety belt
FR2371533A1 (en) * 1976-11-17 1978-06-16 Faure Roux Ets Ch Woven safety strap - has two webs joined by warp yarns which break on impact to absorb shock
GB2191560A (en) * 1986-05-20 1987-12-16 Troll Safety Equipment Ltd Safety lanyard
WO1995001815A2 (en) * 1993-07-06 1995-01-19 Latchways Limited Energy absorbing fall arrest device
FR2709970A1 (en) * 1993-09-13 1995-03-24 Charlet Moser Sa Safety device with energy absorption for mountaineering and climbing
GB2292782A (en) * 1994-09-02 1996-03-06 Marling Leek Ltd Shock absorber

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002047764A1 (en) * 2000-12-13 2002-06-20 Grzegorz Laszkiewicz Shock absorber
US7665575B2 (en) 2004-03-01 2010-02-23 Ykk Corporation Of America Shock absorbing fabric structures
US7677360B2 (en) 2004-03-01 2010-03-16 Ykk Corporation Of America Shock absorbing fabric structures
US8387749B2 (en) 2004-03-01 2013-03-05 Ykk Corporation Of America Shock absorbing fabric structures
US8387750B2 (en) 2004-03-01 2013-03-05 Ykk Corporation Of America Shock absorbing fabric structures
US7726350B2 (en) 2005-08-16 2010-06-01 Ykk Corporation Of America Energy absorbing webbings
US8316988B2 (en) 2010-08-12 2012-11-27 Ykk Corporation Of America Shock absorbing fabric structures
US8567559B2 (en) 2010-08-12 2013-10-29 Ykk Corporation Of America Shock absorbing fabric structures
US9328436B2 (en) 2013-03-14 2016-05-03 Ykk Corporation Of America Energy absorbing fabric and method of manufacturing same
EP3093048A1 (en) 2015-05-12 2016-11-16 Zedel Tearing strap and method for manufacturing same
WO2017078669A1 (en) 2015-11-02 2017-05-11 Honeywell International Inc. Sealed handle with integrated shock absorber

Also Published As

Publication number Publication date
FR2760648B1 (en) 1999-05-07
FR2760648A1 (en) 1998-09-18
AU6838898A (en) 1998-10-12
DE69813736D1 (en) 2003-05-28
EP0923403B1 (en) 2003-04-23
EP0923403A1 (en) 1999-06-23
DE69813736T2 (en) 2004-01-29

Similar Documents

Publication Publication Date Title
EP0923403B1 (en) Shock absorbing safety belt
EP3093048A1 (en) Tearing strap and method for manufacturing same
US7721518B2 (en) Yarns for cut-resistant webbing and other products
FR2543003A1 (en) SHOCK ABSORBER FOR FALL PROTECTION SYSTEM FOR USE BY WORKERS
EP2807296A1 (en) Hybrid elastic cable and process for manufacturing such a cable
FR2640908A1 (en)
WO2007061010A1 (en) Woven belts and seat belt devices
JP3459185B2 (en) Webbing weave structure
EP0768100B1 (en) Sewn attachment loop for an elastic rope, and method of making it
EP0208616B1 (en) Elastic damping abutment
FR2524950A1 (en) IMPACT SHOCK ABSORBER DEVICE AND WIRE RIBBON USED IN SAID DEVICE
WO2009027615A2 (en) Hybrid thread and method for making same
WO2016102812A1 (en) Tear strap
FR3094645A1 (en) HARNESS WITH COMPACT ADJUSTMENT DEVICE
EP0823341A1 (en) Pneumatic tyre without bead core
WO1998024956A1 (en) Damping device for jacquard loom heald spring
FR2709970A1 (en) Safety device with energy absorption for mountaineering and climbing
FR2742774A1 (en) TENSION ELEMENT FOR BELT AND POWER TRANSMISSION BELT
FR2920787A1 (en) Hybrid thread for manufacturing e.g. technical fabric, has two groups of elementary threads assembled by direct cabling method, where one group comprises high-tenacity threads arranged in pot of direct cabling pin
FR3109890A1 (en) Fall arrest and force distributor harness and a method of manufacturing said harness
FR2524949A1 (en) Safety belt shock absorber - has folded-over flexible tape held by intermeshed loops on inside of ground fabric
EP4271614A1 (en) Stop barrier for an aircraft
CH445845A (en) Object in elastic material, comprising a textile reinforcement
LU100709B1 (en) NEW CARBON FIBER BIELASTIC CABLE AS A TOP MATCH
LU100827A1 (en) Polyester Summit Tablecloth

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU CA JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

WWE Wipo information: entry into national phase

Ref document number: 1998913833

Country of ref document: EP

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWP Wipo information: published in national office

Ref document number: 1998913833

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: CA

NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 1998540185

Format of ref document f/p: F

WWG Wipo information: grant in national office

Ref document number: 1998913833

Country of ref document: EP