EP0923403B1 - Sangle amortisseuse de securite - Google Patents
Sangle amortisseuse de securite Download PDFInfo
- Publication number
- EP0923403B1 EP0923403B1 EP98913833A EP98913833A EP0923403B1 EP 0923403 B1 EP0923403 B1 EP 0923403B1 EP 98913833 A EP98913833 A EP 98913833A EP 98913833 A EP98913833 A EP 98913833A EP 0923403 B1 EP0923403 B1 EP 0923403B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laps
- juxtaposed
- belt
- linked
- portions
- 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
Links
- 230000035939 shock Effects 0.000 title claims description 14
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 238000009941 weaving Methods 0.000 claims description 5
- 230000000750 progressive effect Effects 0.000 claims description 4
- 238000013016 damping Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
Images
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 the means of safety to absorb a fall, brake a speed and more generally, absorb energy.
- shock absorbing straps It is known in many applications to use straps acting as a shock absorber to absorb external energy, known as shock absorbing straps (see for example WO 95/01815, GB 2191560 or FR 2709970).
- these straps shock absorbers are composed of two independent layers woven on a determined length and interconnected by interlacing of a chain additional so-called tying in order to constitute a uniform section.
- the tying chain constitutes a point of connection and rupture during an effort of traction exerted on the free parts of the layers which thus tends to separate the two plies linked against the resistance formed by the wires of woven binding acting as successive shock absorbers until they break.
- This type of shock absorbing strap includes a part, of length determined, that the two layers of yarn are juxtaposed and intimately linked under the conditions indicated described in the patent previously cited, for example.
- One end of this part where the two layers are intimately linked presents two unitary strands independent of each other.
- one of these strands is arranged for be connected to a fixed part, while the other strand is arranged to be connected to a movable part which can move under a given force. If an effort from traction or the like is exerted on at least one of the strands, this results in a tensioning which refers to the level of the tying chain up to the point of rupture between the two intimately linked layers. This results, so concomitant, a successive and continuous tearing of the two linked layers, in acting as energy absorbers and absorbers.
- the other end of the linked part of the two layers, opposite the two free strands connected to the fixed and mobile points, may have two free strands connected to each other, to constitute a safety loop.
- these safety straps must respond to particular standards.
- the pulling force between the two intimately linked tablecloths must correspond to numerical values.
- the object of the invention is to remedy these drawbacks, in a simple, safe, efficient and rational way.
- the problem which the invention proposes to solve is to ability to double the force compared to a standard width of straps tear, or very significantly reduce the width of a strap standard while keeping the same force for this pullout, such than imposed by safety standards.
- the free ends of the first and third parts do not are not linked to constitute each two free strands connected together so as to form a safety loop.
- the first and third part are intimately linked by means assembly capable of acting as a shock absorber allowing tearing in continuous and progressively, the plies of each of said parts when the strands of the second part are subjected to a tensile force;
- the sheets are obtained by weaving.
- the means of assembling the two layers of the first and third parts are constituted by an additional linkage chain.
- the shock absorbing safety strap according to the invention is consisting of two layers of juxtaposed wires (1) and (2).
- the strap has a first part (A) of determined length (L) where the two tablecloths (1) and (2) are juxtaposed and intimately linked with the ability to tearing under a tensile force.
- the strap has a third part (B) of reduced length and where both tablecloths (1) and (2), juxtaposed are free relative to each other, for constitute two strands (la) and (1b).
- This second part is extended by a third part (C) of determined length (L) where the two layers juxtaposed (1) and (2) are intimately linked in the same way as for the part (A) with capacity to tear under a tensile force.
- Strands (la) and (1b) are intended to be connected respectively to a fixed point and at a moving point or at two moving points or even at two points fixed.
- the first and third parts (A) and (C) are of length equal (L).
- parts (A) and (C), opposite the ends where the strands (1a) and (1b) are formed are not linked, for each constitute two free strands (1c) (1d) 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 means assembly capable of acting as shock absorbers, allowing tearing continuously and progressively the plies of each of said parts (A) and (C), when the strands (la) and / or (1b) are subjected to a force of traction (F1) and (F2).
- F1 and F2 force of traction
- the means of assembling parts (A) and (C) are constituted by an additional chain of tying.
- the binding of the two parts (A) and (C) is carried out according to the technical characteristics defined in patent FR 2,371,533.
- the tying chain threads are fixed successively during the assembly of the sheets and differently by each compared to the others, with regard to the variable strokes of the threads of weft following an irregular tying, so that their intertwining differs longitudinally and transversely, to constitute a plurality of different successive groups allowing a progressive rupture without sliding of each group, when the other groups are under voltage.
- These provisions allow regular tearing and a slowing of the moving part of the strap, in relation to the resistance of the tying chain.
- the specific design of the strap also allows, for the same pulling or tearing force exerted on the strands (1a) and (1b) to produce a strap of reduced width compared to the state of the technical.
- a woven strap of safety having only one part where the two plies of son are juxtaposed and closely linked, should be woven across (1) corresponding to the force of pullout criteria dictated by the standards of security.
- the shock absorbing strap can be woven in a reduced width, always matching the strength criteria safety dictated by safety standards.
- the safety strap according to the invention finds numerous applications as well for ensuring braking in a substantially plane vertical than in a substantially horizontal plane, the aim being to absorb a shock after connecting the two strands (la) and (1b) to a structure fixed and / or mobile.
- 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 (1b) is connected to part of the harness.
- the two parts (A) and (C) of the strap are folded to form a compact unit.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Lowering Means (AREA)
- Woven Fabrics (AREA)
Description
- une première partie de longueur déterminée où les deux nappes juxtaposées sont intimement liées avec capacité de déchirement sous un effort de traction,
- 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,
- une troisième partie, de longueur déterminée, où les deux nappes juxtaposées sont intimement liées avec capacité de déchirement sous un effort de traction.
Claims (7)
- Sangle amortisseuse constituée par deux nappes de fils juxtaposées, présentant successivement :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,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 (1a-1b) destinés à être reliés respectivement à un point fixe et à un point mobile ou à deux points mobiles,une troisième partie (C), de longueur déterminée, où les deux nappes juxtaposées sont intimement liées avec capacité de déchirement sous un effort de traction.
- 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).
- 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 (1c-2c) et (1d-2d) reliés entre eux de manière à former une boucle de sécurité.
- 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 (1a-1b) de la deuxième partie (B) sont soumis à un effort de traction ;
- Sangle selon la revendication 1, caractérisée en ce que les nappes (1) et (2) sont obtenues par tissage.
- 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 chaíne supplémentaire de liage.
- Sangle selon l'une quelconque des revendications 1 à 6 et son application à un harnais de sécurité.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9703384A FR2760648B1 (fr) | 1997-03-14 | 1997-03-14 | Sangle amortisseuse de securite |
| FR9703384 | 1997-03-14 | ||
| PCT/FR1998/000432 WO1998041284A1 (fr) | 1997-03-14 | 1998-03-05 | Sangle amortisseuse de securite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0923403A1 EP0923403A1 (fr) | 1999-06-23 |
| EP0923403B1 true EP0923403B1 (fr) | 2003-04-23 |
Family
ID=9504996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98913833A Expired - Lifetime EP0923403B1 (fr) | 1997-03-14 | 1998-03-05 | Sangle amortisseuse de securite |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0923403B1 (fr) |
| AU (1) | AU6838898A (fr) |
| DE (1) | DE69813736T2 (fr) |
| FR (1) | FR2760648B1 (fr) |
| WO (1) | WO1998041284A1 (fr) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002047764A1 (fr) * | 2000-12-13 | 2002-06-20 | Grzegorz Laszkiewicz | Amortisseur de chocs |
| US8919666B2 (en) | 2005-04-19 | 2014-12-30 | Warren Environmental, Inc. | Method and system for preheating epoxy coatings for spray application |
| US9931653B2 (en) | 2005-04-19 | 2018-04-03 | 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 |
| US8316988B2 (en) | 2010-08-12 | 2012-11-27 | Ykk Corporation Of America | Shock absorbing fabric structures |
| DE102011003579A1 (de) * | 2011-02-03 | 2012-08-09 | Aloys Wobben | Auffanggurt |
| US20130105246A1 (en) * | 2011-10-28 | 2013-05-02 | D B Industries, Inc. | Energy absorber |
| DE102012212640A1 (de) * | 2012-07-18 | 2014-01-23 | Bornack Gmbh & Co. Kg | Auslösevorrichtung für einen Falldämpfer |
| FR3036038A1 (fr) | 2015-05-12 | 2016-11-18 | Zedel | Sangle a dechirement et procede de fabrication correspondant |
| WO2017078669A1 (fr) | 2015-11-02 | 2017-05-11 | Honeywell International Inc. | Poignée étanche à amortisseur intégré |
Family Cites Families (6)
| 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 (fr) * | 1976-11-17 | 1978-06-16 | Faure Roux Ets Ch | Procede de tissage et de liage des brins separes des sangles amortisseuses |
| GB2191560A (en) * | 1986-05-20 | 1987-12-16 | Troll Safety Equipment Ltd | Safety lanyard |
| GB9314063D0 (en) * | 1993-07-06 | 1993-08-18 | Latchways Ltd | Shock absorber |
| FR2709970B1 (fr) * | 1993-09-13 | 1995-10-27 | Charlet Moser Sa | Dispositif d'assurance à absorption d'énergie pour l'alpinisme et l'escalade. |
| GB2292782A (en) * | 1994-09-02 | 1996-03-06 | Marling Leek Ltd | Shock absorber |
-
1997
- 1997-03-14 FR FR9703384A patent/FR2760648B1/fr not_active Expired - Lifetime
-
1998
- 1998-03-05 AU AU68388/98A patent/AU6838898A/en not_active Abandoned
- 1998-03-05 EP EP98913833A patent/EP0923403B1/fr not_active Expired - Lifetime
- 1998-03-05 DE DE69813736T patent/DE69813736T2/de not_active Expired - Fee Related
- 1998-03-05 WO PCT/FR1998/000432 patent/WO1998041284A1/fr not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US7726350B2 (en) | 2005-08-16 | 2010-06-01 | Ykk Corporation Of America | Energy absorbing webbings |
| US9328436B2 (en) | 2013-03-14 | 2016-05-03 | Ykk Corporation Of America | Energy absorbing fabric and method of manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2760648A1 (fr) | 1998-09-18 |
| DE69813736D1 (de) | 2003-05-28 |
| FR2760648B1 (fr) | 1999-05-07 |
| AU6838898A (en) | 1998-10-12 |
| WO1998041284A1 (fr) | 1998-09-24 |
| EP0923403A1 (fr) | 1999-06-23 |
| DE69813736T2 (de) | 2004-01-29 |
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