EP0736623A1 - 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
EP0736623A1
EP0736623A1 EP19960105282 EP96105282A EP0736623A1 EP 0736623 A1 EP0736623 A1 EP 0736623A1 EP 19960105282 EP19960105282 EP 19960105282 EP 96105282 A EP96105282 A EP 96105282A EP 0736623 A1 EP0736623 A1 EP 0736623A1
Authority
EP
European Patent Office
Prior art keywords
warp threads
webbing
length
short
tensile load
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.)
Granted
Application number
EP19960105282
Other languages
German (de)
English (en)
Other versions
EP0736623B1 (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.
  • Such force limiting devices can be formed, for example, by stretching devices which can be provided on an end fitting of the belt or on its belt retractor. Due to the plastic deformation occurring when a predetermined tensile load is exceeded, which leads to an increase in the length of the expansion device, the belt force can be limited to a structurally predetermined dimension.
  • the disadvantage of such force limiting devices is that additional construction work necessary for them, in addition to the risk of incorrect assembly.
  • a force limitation can also be achieved by tearing elements, which are designed on the belt in the manner of a belt loop and gradually release an additional belt length when a predetermined tensile load is exceeded, which likewise allows the tensile load to be limited to a predetermined amount.
  • tearing elements which are designed on the belt in the manner of a belt loop and gradually release an additional belt length when a predetermined tensile load is exceeded, which likewise allows the tensile load to be limited to a predetermined amount.
  • the object of the invention is to implement a force limitation with simple means on the belt strap itself, the force limitation characteristic of which can be influenced in terms of design and can be reproduced well.
  • a woven webbing which is characterized in that the warp threads are formed with different lengths depending on the length unit of the webbing, namely as short warp threads which, up to a first elongation value of the webbing, the tensile load acting in this without stressing the longer warp threads record, and as longer warp threads, which are involved in absorbing the tensile load acting in the belt band from this elongation value of the belt depending on the ratio of their length to the length of the short warp threads.
  • Such a webbing avoids any additional construction effort for a force limiting device, since when a predetermined tensile load is exceeded, a controlled increase in the length of the webbing can be achieved by stretching the shorter warp threads, as a result of which the tensile load acting in the webbing can be limited to a design dimension.
  • Another advantage of the webbing according to the invention is that the characteristic curve of tensile load over stretching of the webbing can be freely adjusted in a wide range by suitable selection of the length ratios of the warp threads and their dimensioning.
  • the longer warp threads are formed by long warp threads of uniform length, which are involved in absorbing the tensile load acting on the belt strap from the first elongation value of the webbing corresponding to the difference in length between the short and long warp threads.
  • the use of warp threads with only two different lengths results in an advantageous compromise between inexpensive manufacture on the one hand and sufficient variation of the characteristic curve from tensile load to elongation of the webbing on the other hand.
  • FIGS. 1 and 2 schematically show the preferred embodiment of a webbing 1 according to the invention. It consists of interwoven weft threads 5 and warp threads 7 running in the longitudinal direction of the webbing. As can be seen in particular in FIG. 2, half of the warp threads 7 have a greater length than the remaining warp threads.
  • the warp threads 7 thus comprise short warp threads 10 and long warp threads 20. As can also be seen in particular in FIG. 2, the short and the long ones Warp threads 10, 20 arranged alternately. It has proven to be particularly advantageous if the long warp threads 20 are longer by approximately 20% per unit length of the webbing 1 than the short warp threads 10.
  • the belt webbing 1 is limited in the following manner in the event of a vehicle accident (see also FIG. 3 ): In a normal use of the webbing 1, the tensile load acting on it is absorbed exclusively by the short warp threads 10. There is essentially no stretching of the webbing 1. Only when a first limit force is reached, which in the case of the curve shown in FIG. 3 is approximately 3 kN, does the belt webbing 1 stretch noticeably.
  • weft threads 5 and the warp threads 7 are made of polyethylene, this occurs when they are reached first limit force a considerable elongation of the webbing 1 up to a first elongation value of approximately 20%, this elongation of the webbing 1 taking place with an essentially constant tensile load on the webbing 1. Until this first elongation value is reached, the tensile load acting in the webbing 1 continues to be absorbed exclusively by the short warp threads 10.
  • the design 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 takes place, corresponds to the force above which an injury to the vehicle occupant must be feared and from which the force limiting function is to start.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
  • Automotive Seat Belt Assembly (AREA)
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 true EP0736623A1 (fr) 1996-10-09
EP0736623B1 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999065741A1 (fr) * 1998-06-16 1999-12-23 Alliedsignal Inc. Sangle limitant la charge

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
US6260926B1 (en) 2000-02-28 2001-07-17 Leonard James Meraw Energy absorbing webbing for seat belt systems
EP1360431B1 (fr) * 2001-02-07 2005-08-03 Mammut Tec AG Ralentisseur de chute
WO2003091489A1 (fr) * 2002-04-23 2003-11-06 Diolen Industrial Fibers Gmbh Procede pour realiser des sangles de ceintures de securite
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

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464459A (en) * 1968-01-17 1969-09-02 Burlington Industries Inc Webbings for safety restraint systems
DE1910288A1 (de) * 1968-02-29 1969-09-11 Rhodiaceta Neue Textilgurte
DE1946853A1 (de) * 1968-09-27 1970-04-02 Uniroyal Inc Textilfabrikat
US3530904A (en) * 1967-10-02 1970-09-29 Burlington Industries Inc Energy absorbing fabric
US4228829A (en) * 1979-03-30 1980-10-21 Nsk-Warner K.K. Webbing for seat belt
EP0046911A1 (fr) * 1980-08-30 1982-03-10 Jute- u. Leinenindustrie H.R. Rathgeber KG Sangle et procédé pour sa fabrication
EP0163778A1 (fr) * 1984-06-07 1985-12-11 Ieperband N.V. Ruban extensible et procédé pour sa fabrication
US5376440A (en) * 1993-03-31 1994-12-27 Ikeda Bussan Co., Ltd. Woven fabric for seat belt

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPH0641843A (ja) * 1992-04-10 1994-02-15 Ikeda Bussan Co Ltd 衝撃吸収用ベルト

Patent Citations (8)

* 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
DE1910288A1 (de) * 1968-02-29 1969-09-11 Rhodiaceta Neue Textilgurte
DE1946853A1 (de) * 1968-09-27 1970-04-02 Uniroyal Inc Textilfabrikat
US4228829A (en) * 1979-03-30 1980-10-21 Nsk-Warner K.K. Webbing for seat belt
EP0046911A1 (fr) * 1980-08-30 1982-03-10 Jute- u. Leinenindustrie H.R. Rathgeber KG Sangle et procédé pour sa fabrication
EP0163778A1 (fr) * 1984-06-07 1985-12-11 Ieperband N.V. Ruban extensible et procédé pour sa fabrication
US5376440A (en) * 1993-03-31 1994-12-27 Ikeda Bussan Co., Ltd. Woven fabric for seat belt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999065741A1 (fr) * 1998-06-16 1999-12-23 Alliedsignal Inc. Sangle limitant la charge

Also Published As

Publication number Publication date
US5910457A (en) 1999-06-08
WO1996031642A1 (fr) 1996-10-10
JPH09506577A (ja) 1997-06-30
DE59607111D1 (de) 2001-07-26
ES2094108T1 (es) 1997-01-16
EP0736623B1 (fr) 2001-06-20
CN1149895A (zh) 1997-05-14
ES2094108T3 (es) 2001-09-16
JP2899420B2 (ja) 1999-06-02
DE19513259A1 (de) 1996-10-10
CN1040896C (zh) 1998-11-25

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