EP4702181A1 - Ceinture de sécurité - Google Patents

Ceinture de sécurité

Info

Publication number
EP4702181A1
EP4702181A1 EP24722124.5A EP24722124A EP4702181A1 EP 4702181 A1 EP4702181 A1 EP 4702181A1 EP 24722124 A EP24722124 A EP 24722124A EP 4702181 A1 EP4702181 A1 EP 4702181A1
Authority
EP
European Patent Office
Prior art keywords
safety belt
electrical conductor
electrical
loop
threads
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.)
Pending
Application number
EP24722124.5A
Other languages
German (de)
English (en)
Inventor
Willi WELZ
Kai-Stephan Müller
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.)
Autoliv Development AB
Original Assignee
Autoliv Development AB
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 Autoliv Development AB filed Critical Autoliv Development AB
Publication of EP4702181A1 publication Critical patent/EP4702181A1/fr
Pending legal-status Critical Current

Links

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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/004—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft with weave pattern being non-standard or providing special effects
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/533—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads antistatic; electrically conductive
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/16—Physical properties antistatic; conductive
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/12—Vehicles
    • D10B2505/122—Safety belts

Definitions

  • the present invention relates to a safety belt according to the preamble of claim 1.
  • Seat belts may require electrical conductors that run along the seat belt for various additional electrical functions.
  • electrical conductors are particularly relevant for the heating functions of the seat belt.
  • the electrical conductor can be used to supply the electrical current to dedicated heating elements and/or even as a resistance heater itself.
  • the electrical conductors in the seat belt are usually more sensitive than the material of the seat belt fabric, so the electrical conductors require special protection to ensure long-term durability.
  • a safety belt for a motor vehicle wherein the safety belt has a fabric made of warp threads and weft threads, and wherein the fabric preferably has a twill weave. At least one electrical conductor is guided parallel to at least one warp thread. It is proposed that the weft threads are double weft threads, wherein at least part of the double weft thread runs above and at least part of the double weft thread runs below the at least one electrical conductor.
  • a double weft thread can also be referred to as a guide of at least two weft threads which are guided in a weft such that the two weft threads or the two parts of the double weft thread are each on the same side of the warp threads, but one weft thread or part of the double weft thread is above and the other weft thread or the other part of the double weft thread is below the at least one electrical conductor. Accordingly, the double weft thread is preferably guided with at least two shuttles or needles during manufacture of the safety belt.
  • the proposed safety belt comprises at least one electrical conductor, preferably several electrical conductors, which can be used, for example, to heat the safety belt.
  • the electrical conductor can be guided in the twill weave, whereby the electrical conductor is not completely interwoven with the weft thread system. This ensures that the electrical conductor is always covered by at least part of the double weft thread.
  • the electrical conductor is therefore particularly protected, which has a positive effect on wear resistance.
  • heat can be better distributed in the safety belt with electrical resistance heating of the electrical conductor, so that locally higher temperatures, which could be unpleasant on the skin of an occupant, for example, can be prevented.
  • the advantages of the twill weave can be used for the safety belt, whereby the disadvantages for the electrical conductor(s) can be avoided.
  • the at least one electrical conductor can thus be protected from the outside over its entire length.
  • the warp and weft threads are preferably not electrically conductive. According to an advantageous further development, it is proposed that the at least one electrical conductor is arranged between two warp threads in a plan view of the safety belt.
  • the electrical conductor(s) are preferably positioned during the manufacture of the fabric in such a way that an electrical conductor is arranged between two warp threads at least in a plan view. In this way, the electrical conductor in the twill fabric can be protected on both sides by a warp thread.
  • the plurality of electrical conductors are each arranged between two different warp threads. This allows uniform heating to be achieved by means of the electrical conductors.
  • the fabric has a twill weave with a 2/2 twill.
  • a 2/2 twill weave is particularly suitable for the proposed embedding of at least one electrical conductor.
  • the electrical conductor is an electrically conductive yarn.
  • Conductive yarns are yarns which are coated with a conductive metal, for example, or which otherwise achieve sufficient conductivity to enable electrical resistance heating, for example.
  • the electrical conductor is a wire.
  • the wire is made of metal and therefore has electrical conductivity, which can be used to control electrical devices or as a resistance heating element in the seat belt.
  • the electrical conductor is guided in a textile band.
  • the textile band is preferably a flat and very thin textile band in which at least one electrical conductor, for example as a heating wire, is guided.
  • the textile band in which the at least one electrical conductor is woven is introduced into the fabric of the seat belt as an electrical conductor, as described above.
  • the at least one electrical conductor is led out of the woven safety belt to the outside in a loop at least in one position, preferably at two positions.
  • the electrical conductor is guided out of the seat belt fabric with the loop for the length of the loop and then back into the fabric. The course of the electrical conductor in front of and behind the electrical conductor is not changed by this.
  • the electrical conductor is cut in the loop. This allows the electrical conductor to be contacted in a similar way to a normal conductor end. If part of the cut loop is not required, it can be cut, for example, just above the surface of the seat belt in order to avoid any incorrect contact.
  • the loop is laid flat on the outside of the safety belt.
  • the loop can also preferably be stitched into this This position must be fixed on the seat belt.
  • the flattened loop offers a large surface for contacting the electrical conductor in the seat belt, whereby an appropriate contact is achieved with a slight thickening.
  • the electrical conductor in the loop is connected to an electrical connection.
  • the electrical conductor in the loop is soldered to an electrical connection.
  • Fig. 1 shows a safety belt with a double weft thread and electrical conductors during manufacture
  • Fig. 2 is a plan view of a safety belt with an electrical conductor and double weft thread
  • Fig. 3 is a sectional view parallel to the path of an electrical conductor in a safety belt with double weft threads;
  • Fig. 4 is a sectional view perpendicular to the path of an electrical conductor in a safety belt with double weft threads;
  • Fig. 5 is a plan view of a safety belt with four loops of electrical conductors in a line;
  • Fig. 6 is a plan view of a safety belt with four offset loops of electrical conductors
  • Fig. 7 is a sectional view perpendicular to the course of an electrical conductor in a flat textile band
  • Fig. 8 is a schematic view of the weaving process with an electrical conductor in a flat textile ribbon.
  • FIG 1 shows an advantageous embodiment of a safety belt 10 for a motor vehicle.
  • the safety belt 10 is in the state of manufacturing the fabric from warp threads 11 and weft threads 12 with a twill weave.
  • two warp threads 11 are alternately offset upwards and downwards.
  • Two electrical conductors 13 are shown parallel to the warp threads 11 in this schematic representation.
  • a double weft thread 12 is passed between the offset warp threads 11 in order to produce the twill weave. However, part of the double weft thread 12 is guided above the electrical conductors 13 and part below the electrical conductor 13.
  • the electrical conductors 13 therefore run parallel to the warp threads 11, but occupy a special position in the twill weave, so that the electrical conductors 13 are not woven into the weft thread system like the warp threads 13. As a result, a part of the double weft thread 12 always covers the electrical conductor 13 on the outside, so that it is particularly protected.
  • the two electrical conductors 13 are each arranged close to two different warp threads.
  • Figure 2 shows a section of a safety belt 10 with a twill 2/2 fabric made of warp threads 11 and double weft threads 12.
  • An electrical conductor 13 is guided parallel between two warp threads 11.
  • the electrical conductor 13 is an electrical yarn.
  • the electrical conductor can also be a wire.
  • Figure 3 shows the section of the safety belt 10 of Figure 2 in a sectional view parallel through the electrical conductor 13. It is shown schematically how the upper and lower part of the double weft thread 12 encloses the electrical conductor 13 on both sides and at the same time follows the twill weave with the warp threads 11 as a weft thread.
  • Figure 4 shows the section of the safety belt 10 of Figure 2 in a sectional view perpendicular through the course of the electrical conductor 13. The electrical conductor 13 is arranged centrally between two warp threads 11, so that the electrical conductor 13 is well protected in the fabric of the safety belt 10.
  • Figure 5 shows a plan view of a section of the proposed safety belt 10, wherein four electrical conductors 13 are embedded in the fabric by means of the double weft threads 11 parallel to the warp threads 11.
  • the electrical conductors 13 are led out of the safety belt 14 with loops 14, wherein the respective other end of the loop 14 leads back into the safety belt 10.
  • the loops 14 are led out of the fabric in a line parallel to the weft threads 12.
  • the four loops 14 are offset from one another and lead out of the fabric of the safety belt 10.
  • Figure 7 shows a further embodiment in which a section of the safety belt 10 is shown in a sectional view perpendicular to the path of the electrical conductor 13.
  • the electrical conductor 13 is guided in a textile band 15 in which at least one electrical conductor 13, preferably at least two electrical conductors 13, are embedded.
  • the textile band 15 with the electrical conductor 13 or the electrical conductors 13 is arranged centrally to the two warp threads 11, so that the electrical conductor 13 with the textile band 15 is well protected in the fabric of the safety belt 10.
  • Figure 8 shows schematically a part of the weaving process of the safety belt 10, wherein the electrical conductor 13 is guided in a textile band 15. This enables in particular the introduction of several electrical conductors 13 in parallel in an element that is guided parallel to the warp threads 11.

Landscapes

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

Abstract

L'invention concerne une ceinture de sécurité (10) pour un véhicule automobile, la ceinture de sécurité (10) comprenant un tissu constitué de fils de chaîne (11) et de trame (12). Au moins un conducteur électrique (13) s'étend parallèlement à au moins un fil de chaîne (11). Les fils de trame (12) sont des fils de trame doubles (12), au moins une partie du fil de trame double (12) s'étendant au-dessus et au moins une partie du fil de trame double (12) s'étendant au-dessous du ou des conducteurs électriques (13).
EP24722124.5A 2023-04-25 2024-04-19 Ceinture de sécurité Pending EP4702181A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023110545.0A DE102023110545A1 (de) 2023-04-25 2023-04-25 Sicherheitsgurt
PCT/EP2024/060695 WO2024223426A1 (fr) 2023-04-25 2024-04-19 Ceinture de sécurité

Publications (1)

Publication Number Publication Date
EP4702181A1 true EP4702181A1 (fr) 2026-03-04

Family

ID=90922501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24722124.5A Pending EP4702181A1 (fr) 2023-04-25 2024-04-19 Ceinture de sécurité

Country Status (6)

Country Link
EP (1) EP4702181A1 (fr)
JP (1) JP2026512541A (fr)
KR (1) KR20250168460A (fr)
CN (1) CN121013930A (fr)
DE (1) DE102023110545A1 (fr)
WO (1) WO2024223426A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4006196A1 (de) * 1990-02-28 1991-08-29 Elastic Berger Gmbh & Co Gewebtes gurtband fuer fahrzeugsicherheitsgurte
DE29711050U1 (de) 1997-06-25 1997-08-21 Wenzel, Nicolaus, Dipl.-Ing. Dipl.Wirt.-Ing.(FH) REFA-Ing., 54470 Bernkastel-Kues Sicherheitsgurtsystem zur Personensicherung, insbesondere in Land- und Seefahrzeugen und/oder Flugzeugen
DE10205937A1 (de) 2001-02-13 2002-08-14 Manfred Gortat Abgeschirmtes Gurtband
JP6146509B1 (ja) 2016-03-31 2017-06-14 タカタ株式会社 乗員拘束ベルト用ウェビング、シートベルト、及びシートベルト装置

Also Published As

Publication number Publication date
KR20250168460A (ko) 2025-12-02
WO2024223426A1 (fr) 2024-10-31
CN121013930A (zh) 2025-11-25
DE102023110545A1 (de) 2024-10-31
JP2026512541A (ja) 2026-04-16

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