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WO2008116573A1 - Airbag - Google Patents

Airbag Download PDF

Info

Publication number
WO2008116573A1
WO2008116573A1 PCT/EP2008/002141 EP2008002141W WO2008116573A1 WO 2008116573 A1 WO2008116573 A1 WO 2008116573A1 EP 2008002141 W EP2008002141 W EP 2008002141W WO 2008116573 A1 WO2008116573 A1 WO 2008116573A1
Authority
WO
WIPO (PCT)
Prior art keywords
layers
airbag
edge
blank
connection
Prior art date
Application number
PCT/EP2008/002141
Other languages
German (de)
English (en)
Inventor
Thomas Siewiera
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 WO2008116573A1 publication Critical patent/WO2008116573A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23571—Inflatable members characterised by their material characterised by connections between panels
    • B60R2021/2358—Bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23571—Inflatable members characterised by their material characterised by connections between panels
    • B60R2021/2359—Welding

Definitions

  • the invention relates to a gas bag according to the preamble of claim 1.
  • each layer may have at least one connecting edge, wherein each connecting edge is connected to another connecting edge along a connecting line, so that the layers form the airbag envelope, which encloses a gas space.
  • the airbag cover can be composed of several blanks, or, as the generic JP 8-276812 A, be folded from only one blank.
  • the connecting edges are sewn together along their respective connecting line in such a way that the connecting edges are parallel to one another and point in the same direction (peel seam).
  • connection areas in the case of a conventional gas bag, therefore, the seam areas. This also applies in particular to gas bags which are completely or partially cut out of foil are made, wherein the connection between the blanks takes place by gluing or welding.
  • the object of the present invention is to improve a gas bag according to the invention in such a way that the connection between the blanks is improved.
  • interconnected connecting edges are always oriented antiparallel to each other. This means that the interconnected portions of the layers are in mutually parallel planes, but pointing in opposite directions. As a result, so-called seer joints (shear seams) are obtained, which have a greater stability under tensile loading of the gas bag envelope than the peel seams already mentioned above.
  • the invention is particularly suitable for gas bags whose blanks consist of foil.
  • Possible foils are metal foils, plastic foils or composite foils which may be laminated, for example, from metal and plastic foils. Fiber-reinforced plastic films can also be used.
  • the gas bag envelope consists of at least three blanks.
  • FIG. 1 shows the three blanks of a gas bag
  • FIG. 2 shows the three blanks from FIG. 1, wherein the first blank has been subjected to a first working step
  • FIG. 3 the finished gas bag
  • FIG. 4 shows a section along the plane A-A from FIG. 3 and FIG. 5 shows a section along the plane B-B from FIG. 3, FIG.
  • FIG. 6 shows a side gas bag designed according to the invention
  • FIG. 7 shows a section along the plane C-C of FIG. 6,
  • FIG. 8 shows a section along the plane D-D from FIG. 6, FIG.
  • Figure 9 shows another embodiment of the invention in a representation corresponding to Figure 6 and
  • FIG. 1 shows a first blank 10, a second blank 20 and a third blank 30, wherein these three blanks preferably consist of foil, namely of metal foil or plastic foil or of a composite foil.
  • the first blank 10 is rectangular and has through openings 18 for the fastening bolts of a gas generator.
  • the second and the third blank 20, 30 are each circular.
  • the first blank has four edges, which in the assembled state each form a connecting edge and are referred to here as first connecting edge 11, second connecting edge 12, third connecting edge 13 and fourth connecting edge 14.
  • the second blank 20 has a fifth connecting edge 25 and the third blank 30 has a sixth connecting edge 36.
  • FIG. 2 shows a first working step, in which the first and third connecting edges 11, 13 of the first blank 10 are joined together along a first connecting line 41, namely glued or welded.
  • first connecting line 41 namely glued or welded.
  • third connecting edge 11, 13 such that the edges parallel to each other, but in opposite directions R1 and R2 ( Figure 4) have.
  • First connecting edge 11 and third connecting edge 13 are thus oriented antiparallel to each other and form a so-called shear connection.
  • the gas generator is introduced into the interior of the first blank and its connecting bolts inserted through the passage openings (not shown).
  • FIG. 3 shows a subsequent working step, in which second and third cut-outs 20, 30 are placed on the second and fourth connecting edges 12, 14 of the first blank 10 in the manner of a cap and connected thereto. This results in the second and the third connecting line 42,43. Again, the interconnected connecting edges are aligned in anti-parallel to each other, as can be seen well from Figure 5, which is a section along the plane B-B of Figure 3.
  • each blank forms a layer and wherein each of these layers contributes to the geometric shape of the gas bag.
  • Figures 6, 7 and 8 show a side airbag, which is constructed similar to the gas bag just described. However, this is a so-called 2D gas bag, the second and third blank only serve to close the gas space, but do not contribute to the geometric shape of the gas bag.
  • Each blank forms two layers here, wherein the two layers of the first blank form the two side walls of the side gas bag.
  • the edge, in the region of which the gas generator 50 is arranged here, is designed here as a folded edge 15 of the first blank.
  • Figures 9 and 10 show an embodiment in which two chambers 61, 62 are connected to each other by means of a connecting tube 65.
  • the filling tube is folded from another blank, with its connecting edges are oriented anti-parallel to each other.
  • the two chambers 61, 62 are constructed as the gas bag of the second embodiment.
  • In the Impact edges 15 each have a slot with the width of the filling hose is provided, through which the filling hose 65 extends into the interior of the respective chamber.
  • the filling hose is adhesively bonded to the inner sides of the side walls. This adhesive surface is hatched in FIG. 10 and provided with the reference numeral 60.
  • the gas coming from the gas generator 50 first flows into the first chamber 61 and from there via the connecting hose 65 into the second chamber. It is also possible, in the manner shown, to connect a filling hose, which is directly connected to a gas generator, to the chamber of an airbag.
  • the remaining welding or adhesive lines or surfaces are designated by the reference numeral 60 in the figures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne un airbag constitué d'au moins deux couches, chaque couche présentant au moins un bord d'assemblage et chaque bord d'assemblage (11, 12, 13, 14, 25, 36) étant relié à un autre bord d'assemblage, de sorte que les couches forment une enveloppe d'airbag enfermant une chambre gonflable. L'objectif de cette invention est d'améliorer l'assemblage entre les couches, notamment si ces couches sont constituées d'une feuille. A cet effet, les couches sont assemblées par soudage ou par collage le long de leur(s) bord(s) d'assemblage. De plus, deux bords d'assemblage assemblés sont orientés antiparallèlement l'un à l'autre.
PCT/EP2008/002141 2007-03-26 2008-03-18 Airbag WO2008116573A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007014919.2 2007-03-26
DE200710014919 DE102007014919A1 (de) 2007-03-26 2007-03-26 Gassack

Publications (1)

Publication Number Publication Date
WO2008116573A1 true WO2008116573A1 (fr) 2008-10-02

Family

ID=39414981

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/002141 WO2008116573A1 (fr) 2007-03-26 2008-03-18 Airbag

Country Status (2)

Country Link
DE (1) DE102007014919A1 (fr)
WO (1) WO2008116573A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8967665B1 (en) * 2014-01-23 2015-03-03 GM Global Technology Operations LLC Inflatable cushion for a side-impact airbag

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1340549A (en) * 1970-12-10 1973-12-12 Nissan Motor Inflatable protector bag for protecting an occupant of a motor vehicle in a collision
DE4038910A1 (de) 1990-12-06 1992-06-11 Basf Ag Aufblasbarer prallschutzsack fuer kraftfahrzeuge
JPH04356249A (ja) * 1991-05-31 1992-12-09 Achilles Corp 車輌用エアバック
JPH04356248A (ja) * 1991-05-31 1992-12-09 Achilles Corp 車輌用エアバック
EP0708163A2 (fr) * 1994-10-21 1996-04-24 Toyo Cloth Co., Ltd. Feuille adhésive
JPH08276812A (ja) 1995-04-05 1996-10-22 Nippon Seiko Kk 側面衝突用エアバッグ装置
WO1997010973A1 (fr) * 1995-09-22 1997-03-27 Joseph Rychter Sac gonflable et son procede de fabrication
WO1999014082A1 (fr) * 1996-09-18 1999-03-25 Minnesota Mining And Manufacturing Company Element de retenue gonflable fixe de maniere adhesive et son procede de fabrication

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1340549A (en) * 1970-12-10 1973-12-12 Nissan Motor Inflatable protector bag for protecting an occupant of a motor vehicle in a collision
DE4038910A1 (de) 1990-12-06 1992-06-11 Basf Ag Aufblasbarer prallschutzsack fuer kraftfahrzeuge
JPH04356249A (ja) * 1991-05-31 1992-12-09 Achilles Corp 車輌用エアバック
JPH04356248A (ja) * 1991-05-31 1992-12-09 Achilles Corp 車輌用エアバック
EP0708163A2 (fr) * 1994-10-21 1996-04-24 Toyo Cloth Co., Ltd. Feuille adhésive
JPH08276812A (ja) 1995-04-05 1996-10-22 Nippon Seiko Kk 側面衝突用エアバッグ装置
WO1997010973A1 (fr) * 1995-09-22 1997-03-27 Joseph Rychter Sac gonflable et son procede de fabrication
WO1999014082A1 (fr) * 1996-09-18 1999-03-25 Minnesota Mining And Manufacturing Company Element de retenue gonflable fixe de maniere adhesive et son procede de fabrication

Also Published As

Publication number Publication date
DE102007014919A1 (de) 2008-10-02

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