EP0736623B1 - Sangle tissée pour système de retenue de passagers - Google Patents

Sangle tissée pour système de retenue de passagers Download PDF

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Publication number
EP0736623B1
EP0736623B1 EP19960105282 EP96105282A EP0736623B1 EP 0736623 B1 EP0736623 B1 EP 0736623B1 EP 19960105282 EP19960105282 EP 19960105282 EP 96105282 A EP96105282 A EP 96105282A EP 0736623 B1 EP0736623 B1 EP 0736623B1
Authority
EP
European Patent Office
Prior art keywords
warp threads
webbing
short
belt webbing
longer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19960105282
Other languages
German (de)
English (en)
Other versions
EP0736623A1 (fr
Inventor
Andreas Kolb
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.)
TRW Occupant Restraint Systems GmbH
Original Assignee
TRW Occupant Restraint Systems GmbH
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 TRW Occupant Restraint Systems GmbH filed Critical TRW Occupant Restraint Systems GmbH
Publication of EP0736623A1 publication Critical patent/EP0736623A1/fr
Application granted granted Critical
Publication of EP0736623B1 publication Critical patent/EP0736623B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0005—Woven fabrics for safety belts
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3179—Woven 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 woven webbing for a vehicle occupant restraint system according to the preamble of claim 1.
  • Such force limiting devices can, for example be formed by stretching devices that are attached to an end fitting of the belt or on its belt retractor could be. By exceeding a predetermined Tensile stress occurring plastic deformation, which leads to a Increasing the length of the stretching device can result in belt force to be limited to a structurally predetermined dimension.
  • the disadvantage of such force limiting devices is that additional construction effort necessary for them, in addition to that Added risk of incorrect assembly.
  • a force limit can also be achieved using tear elements be formed on the belt in the manner of a belt loop and when a given tensile load is exceeded successively release an additional length of belt, whereby also limit the tensile load to one predetermined dimension is possible. But there is one Force limitation characteristic of unsatisfactory reproducibility.
  • US 4,228,829 A shows a woven webbing in which shorter warp threads with high extensibility and a few longer warp threads with low extensibility are arranged parallel to one another. Due to the stretchability of the shorter warp threads, the webbing can stretch under a certain load until the longer warp threads are tensioned.
  • the object of the invention is to limit the force with simple To realize means on the belt itself, whose Force limiting characteristic can be influenced constructively and is good is reproducible.
  • a woven webbing with the features according to the characterizing part of claim 1.
  • Such one Webbing avoids any additional construction work for a force limiting device, because when a controlled tensile load a controlled increase in length of the webbing by stretching the shorter warp threads is achievable, whereby the tensile load acting in the webbing to be limited to a structurally predetermined dimension can.
  • Another advantage of the webbing according to the invention is that by appropriate selection of the aspect ratios of the warp threads and their dimensioning the characteristic from tensile load to stretching the webbing in a wide range Range is freely adjustable.
  • the longer warp threads with long warp threads uniform length are formed, starting from the difference in length corresponding between the short and the long warp threads first stretch value of the webbing on the holder who are involved in this acting tensile load.
  • FIGS of a webbing 1 The preferred embodiment is shown schematically in FIGS of a webbing 1 according to the invention. It consists of interwoven weft threads 5 and warp threads running in the longitudinal direction of the webbing 7. As can be seen in particular in FIG. 2, the Half of the warp threads 7 have a greater length than the remaining ones Warp threads.
  • the warp threads 7 thus comprise short ones Warp threads 10 and long warp threads 20. As also in particular seen in Fig. 2 are the short and the long Warp threads 10, 20 arranged alternately. To be particularly advantageous has proven to be when the long warps are 20 um about 20% longer per unit length of the webbing 1 than the short warp threads 10.
  • Webbing 1 takes place in the event of a vehicle accident in the following way (see also FIG. 3): In one normal use of the webbing 1 is in this acting tensile load only from the short warp threads 10 added. There is essentially no stretch of the webbing 1. Only after reaching a first one Limit force in the case of that shown in Fig. 3 Curve is approximately 3 kN, there is a noticeable Elongation of the webbing 1. Since the weft threads 5 and the warp threads 7 consist of polyethylene, takes place upon reaching this first limit force a considerable stretching of the webbing 1 up to a first elongation value of approximately 20%, this stretching of the webbing 1 at substantially constant tension of the webbing 1 takes place. Until This first stretch value is reached in the webbing 1 acting tensile load still exclusively from the short warp threads 10 added.
  • the structural parameters of the webbing 1 are selected such that the first limit force at which the webbing 1 stretches up to the first elongation value corresponds to the force, from the exceeding of which an injury occurs of the vehicle occupant must be feared and from which the force limiting function should start.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
  • Automotive Seat Belt Assembly (AREA)

Claims (3)

  1. Sangle tissée de ceinture de sécurité pour un système de retenue des passagers d'un véhicule, constituée par des fils de trame et des fils de chaíne tissés ensemble, les fils de chaíne (7) possédant des longueurs différentes pour chaque unité de longueur de la sangle, à savoir sous forme de fils de chaíne courts (10) et de fils de chaíne plus longs (20), les fils de chaíne courts (10) absorbant jusqu'à une première valeur d'allongement de la sangle (1), la charge de traction qui s'exerce sur celle-ci, sans que les fils de chaíne plus longs soient sollicités, et, à partir de cette valeur d'allongement de la sangle (1), les fils de chaíne plus longs (20) participant en fonction du rapport entre leur longueur et la longueur des fils de chaíne courts, à l'absorption de la charge de traction qui s'exerce sur la sangle (1), caractérisée en ce que les fils de chaínes courts et les fils de chaíne plus longs (10, 20) sont en polyéthylène et en ce que la part des fils de chaíne courts (10), par rapport à tous les fils de chaíne (7), correspond approximativement à la part des fils de chaíne plus longs (20), les chaínes de fils courts et les fils de chaíne plus longs (10, 20) étant disposés en alternance.
  2. Sangle de ceinture selon la revendication 1, caractérisée en ce que les fils de chaíne plus longs (20) sont d'environ 20% plus longs, pour chaque unité de longueur de la sangle (1), que les fils de chaíne courts (10).
  3. Sangle de ceinture selon l'une quelconque des revendications précédentes, caractérisée en ce que les fils de trame sont en polyéthylène.
EP19960105282 1995-04-07 1996-04-02 Sangle tissée pour système de retenue de passagers Expired - Lifetime EP0736623B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995113259 DE19513259A1 (de) 1995-04-07 1995-04-07 Gewebtes Gurtband für ein Fahrzeuginsassenrückhaltesystem
DE19513259 1995-04-07

Publications (2)

Publication Number Publication Date
EP0736623A1 EP0736623A1 (fr) 1996-10-09
EP0736623B1 true EP0736623B1 (fr) 2001-06-20

Family

ID=7759179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960105282 Expired - Lifetime EP0736623B1 (fr) 1995-04-07 1996-04-02 Sangle tissée pour système de retenue de passagers

Country Status (7)

Country Link
US (1) US5910457A (fr)
EP (1) EP0736623B1 (fr)
JP (1) JP2899420B2 (fr)
CN (1) CN1040896C (fr)
DE (2) DE19513259A1 (fr)
ES (1) ES2094108T3 (fr)
WO (1) WO1996031642A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5869582A (en) * 1997-01-22 1999-02-09 Alliedsignal Inc. Diblock polyester copolymer and process for making
US5830811A (en) * 1997-03-18 1998-11-03 Alliedsignal Inc. Load leveling yarns and webbings
US6228488B1 (en) 1998-05-22 2001-05-08 Alliedsignal Inc. Process for making load limiting yarn
US6071835A (en) * 1998-06-16 2000-06-06 Alliedsignal Inc. Load limiting webbing
US6260926B1 (en) 2000-02-28 2001-07-17 Leonard James Meraw Energy absorbing webbing for seat belt systems
ATE301252T1 (de) * 2001-02-07 2005-08-15 Mammut Tec Ag Falldämpfer
DE102011053156B4 (de) 2011-08-31 2017-02-02 Schroth Safety Products Gmbh Sicherheitssitz
US10246045B2 (en) * 2017-05-03 2019-04-02 Ford Global Technologies, Llc Harness bar assembly

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530904A (en) * 1967-10-02 1970-09-29 Burlington Industries Inc Energy absorbing fabric
US3464459A (en) * 1968-01-17 1969-09-02 Burlington Industries Inc Webbings for safety restraint systems
FR1571377A (fr) * 1968-02-29 1969-06-20
US3537488A (en) * 1968-09-27 1970-11-03 Uniroyal Inc Reinforcing fabric
US3872895A (en) * 1970-10-07 1975-03-25 Takatao Kojyo Co Ltd Woven fabric for safety belts of high energy-absorbency
JPS498920A (fr) * 1972-05-27 1974-01-26
JPS5436271B2 (fr) * 1973-10-30 1979-11-08
US4228829A (en) * 1979-03-30 1980-10-21 Nsk-Warner K.K. Webbing for seat belt
DE3032815A1 (de) * 1980-08-30 1982-04-15 Jute- und Leinenindustrie H.R. Rathgeber KG, 7922 Herbrechtingen Gurtband und verfahren zu seiner herstellung
DE3421146A1 (de) * 1984-06-07 1985-12-12 Ieperband N.V., Ieper Dehnungsfaehiges band und verfahren zur herstellung desselben
JPH0641843A (ja) * 1992-04-10 1994-02-15 Ikeda Bussan Co Ltd 衝撃吸収用ベルト
US5376440A (en) * 1993-03-31 1994-12-27 Ikeda Bussan Co., Ltd. Woven fabric for seat belt

Also Published As

Publication number Publication date
ES2094108T3 (es) 2001-09-16
JP2899420B2 (ja) 1999-06-02
CN1040896C (zh) 1998-11-25
JPH09506577A (ja) 1997-06-30
US5910457A (en) 1999-06-08
WO1996031642A1 (fr) 1996-10-10
ES2094108T1 (es) 1997-01-16
CN1149895A (zh) 1997-05-14
DE19513259A1 (de) 1996-10-10
EP0736623A1 (fr) 1996-10-09
DE59607111D1 (de) 2001-07-26

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