WO1998021063A1 - Side air bag directional guide system - Google Patents
Side air bag directional guide system Download PDFInfo
- Publication number
- WO1998021063A1 WO1998021063A1 PCT/US1997/015635 US9715635W WO9821063A1 WO 1998021063 A1 WO1998021063 A1 WO 1998021063A1 US 9715635 W US9715635 W US 9715635W WO 9821063 A1 WO9821063 A1 WO 9821063A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air bag
- guide system
- membrane
- directional guide
- seam
- Prior art date
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
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5816—Seat coverings attachments thereof
- B60N2/5883—Seat coverings attachments thereof by sewing, stitching or threading
-
- 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
- B60R2021/0002—Type of accident
- B60R2021/0006—Lateral collision
-
- 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
- B60R2021/161—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by additional means for controlling deployment trajectory
Definitions
- the present invention relates to a vehicle air bag, and more particularly to a side air bag directional guide system.
- Hill et al discloses an air bag module including an inflater for generating gas and an air bag coupled to the inflater and deployable upon generation of gas by the inflater.
- the pouch is made of a fabric material and serves as both the housing and cover of the module.
- the pouch has wall portions surrounding the air bag and inflater and defining a pouch interior containing the inflater and air bag substantially therein such that the inflater and the air bag are housed within the pouch.
- the pouch is also provided
- the air bag may on occasion rupture the trim at a point other than at the seam, thereby possibly resulting in the bag being improperly deployed.
- the stitched seam in the trim material be weakened. However, this can have the undesired effect of reducing the long term durability of the seat trim and result in premature separation or splitting of the seam.
- an air bag directional guide system in a vehicle seat including a seat back having a seat cover with an air bag mounted inside of the seat cover.
- a membrane is wrapped around the air bag unit and has first and second ends connected to a seam in the seat cover. In the preferred embodiment, first and second ends of the membrane are stitched
- Figure 1 is a perspective view of a vehicle interior illustrating an air bag unit in an undeployed condition mounted inside of a seat cover according to the principles of the present invention
- Figure 2 is a -similar perspective view showing the side air bag deployed through a seam in the seat;
- Figure 3 is a detailed perspective view illustrating the side air bag directional guide system according to the principles of the present invention.
- Figure 4 is a sectional view of the side air bag directional guide system according to the principles of the present invention with the air bag unit in an undeployed condition;
- Figure 5 is a similar view to Figure 4 with the air bag being initially deployed and the air bag intensifier membrane pulling the seam apart;
- Figure 6 is a similar sectional view to Figure 5 with the seam being broken and the air bag being deployed through the torn seam;
- Figure 7 is an exemplary air bag unit usable with the side air bag directional guide system of the present invention
- Figure 8 is a sectional view of a side air bag directional guide system according to a second embodiment of the present invention
- Figure 9 is a sectional view of a side air bag directional guide system according to a third embodiment of the present invention.
- Figure 10 is a detail view of a single wire sleeve closure for attaching ends of the two panels of an intensifier membrane
- Figure 11 illustrates the method of forming the notched sleeves shown in Figure 10.
- Figure 12 illustrates how the intensifier membrane is sewn into the bolster seam of the seat back according to a preferred embodiment of the present invention.
- Figure 13 is a detailed perspective view illustrating the side air bag
- Figure 14 is a sectional view of the side air bag directional guide system shown in Figure 13;
- Figure 15 is a plan view of the generally U-shaped wire utilized with the embodiment shown in Figure 13.
- a vehicle 10 including a door 12 having a movable window 14 mounted thereon.
- the interior of the vehicle 12 includes a seat 16 having a seat back 18 supported by a seat back frame 20.
- Seat back 18 is provided with a seat cover 22.
- An air bag unit 24 is mounted to seat back frame 20 inside the side bolster of seat back 18.
- the air bag unit 24 is illustrated in an undeployed condition.
- Figure 2 illustrates
- the air bag 30 of air bag unit 24 in a deployed position.
- the air bag 30 is preferrably deployed through an opening 32 in bolster seam 28.
- Air bag unit 24 is mounted to seat back frame 20 by bracket 34. Air bag unit 24 is provided with a pair of bolts 36 extending from a plastic cover 38 which encloses the air bag 30 and an inflater. The air bag 30 is coupled to the inflater which generates gas upon energization to rapidly fill
- Plastic cover 38 is provided with a break line 40 at which the plastic cover 38 opens up upon deployment of the air bag 30.
- Bracket 34 is attached to the seat back frame by welding or other means.
- a fabric intensifier membrane 26 is wrapped around seat back frame 20 and air bag unit 24.
- the intensifier membrane 26 preferably includes a first and
- a first end 46 of each panel 56 and 58 is sewn into the bolster seam 28 in the trim cover 22 in a manner to be subsequently described.
- a sleeve 60 is formed along an edge opposite the first ends 46 of the two panels 56 and 58.
- a rod 62 is inserted into each of the sleeves 60
- each panel 56, 58 of intensifier membrane 26 includes an upper and a lower flap portion 66 which are sewn to the corresponding upper and lower flap portions 66 of the opposing panel by thread 68.
- the upper and lower flap portions 66 substantially enclose the cavity defined by intensifier membrane 26 around the air bag unit 24, thereby ensuring that deployment of the air bag is not diverted upwardly or downwardly instead of bursting through seam 28.
- Flap members 60 are preferably formed integrally with panels 56, 58.
- the thread stitching 68 can be formed with the same equipment used to form seam 28 and still ensure proper deployment of the air bag 30.
- trim cover it is presently the practice during construction of automotive seating for the trim cover to be completely pre-sewn with the bottom end of the cover open so that is can be installed onto the seat back over the foam padding. Typically, this is accomplished by turning the trim cover inside out and then rolling the trim cover from the top closed end down over the foam padding.
- the first ends 46 of the two panels 56 and 58 of the intensifier membrane 26 are sewn directly into the bolster seam 28 at the appropriate location along the seam when the trim cover is manufactured.
- the respective edges of the front and side panels 52, 54, respectively, of the trim cover are typically butted up against a guide and then run through a sewing machine to stitch the panels together along their respective edges.
- the first ends 46, 48 of the two panels 56 and 58 of the intensifier membrane 26 are positioned at the appropriate location on either side of the two trim cover panels 52, 54 and butted up against the guide 65 as shown in Figure 12.
- trim panels 52, 54 together with the two intensifier panels 56 and 58 are then run through the sewing machine so that the first ends 46, 48 of the intensifier membrane panels 56 and 58 are stitched into the bolster seam 28 in the trim cover 22.
- the opposite sleeve ends 60 of the two panels 56 and 58 are fed through the split 66 formed in the foam padding 68 to accommodate the air bag unit 24.
- the sleeve ends 60 of the two panels 56 and 58 are then joined together around the frame 20 and air bag
- the air bag unit 24 is previously installed onto the seat frame bracket 34 prior to assembly of the foam padding 62 and trim cover 22.
- the ends 60 of the two panels 56 and 58 can optionally be provided with bolt holes and secured directly to the seat frame bracket 34 with the air bag unit 24. In this manner, it would not be necessary for the intensifier member 26 to pass around the seat frame 20, and the rods 62 and hog rings 64 could be eliminated.
- the stresses applied to the intensifier membrane 26 are thus directed at the bolster seam 28, causing the seam 28 to tear open and ensuring that the air bag 30 is properly deployed through the opening 32 in the trim seam.
- the intensifier membrane 26 confines the air bag as it inflates so that the force from the inflating air bag is directed at the seam 28 in the trim cover 22. Since the tensile strength of the intensifier membrane 26 is substantially greater than that of the stitched seam 28, the stress from the inflating air bag 30 pulls the seam apart, ensuring that the air bag properly deploys through the seam 28 in the trim cover 22 as illustrated.
- the intensifier membrane 26 must be made from a material that is stitchable, and yet has a high tensile strength with minimum elongation.
- the intensifier membrane 26 is preferably made from a high strength, low elasticity, woven fabric. Alternatively, other materials can be
- a second embodiment of the present invention is illustrated with a membrane 70 serving as both a cover for the air bag unit, including air bag 71 and inflater 72, and as an intensifier membrane.
- First and second ends 74, 76 of the membrane 70 are attached to the bolster seam 28 of the seat cover 22, while membrane 70 is also attached to bracket 76 which is mounted to frame 20 and supports air bag 71 and inflater 72.
- an intensifier membrane 80 surrounds the foam padding 82 which is disposed around the air bag unit 24.
- Foam padding 82 is provided with a deployment split 84 which extends from the air bag unit 24
- Intensifier membrane 80 is disposed adjacent to seat cover 22 and is provided with first and second panels 90, 92 each having a first end sewn in the bolster seam 28 by thread 94.
- First and second panels 90, 92 each have a second end 96, 98, respectively, which are connected to one another by a single wire sleeve closure 100.
- Closure 100 includes a pair of corresponding notched sleeves 102 on the second end 96, 98 of each of the first and second panels 90, 92.
- Notched sleeves 102 are formed by cutting a plurality of rectangular openings 104 along a sleeve fold line 106. The sleeves 102 are created by folding the fabric over along the fold line 106 and sewing the fabric together along sew lines 108.
- corresponding notched sleeves 102 of first and second panels 90, 92 are connected together by a wire 110 which is inserted in alternating fashion through adjacent sleeve portions 112.
- first and second panels 90, 92 can be connected in
- the panels 90, 92 again each have a first end sewn in the bolster seam 28 by thread 94.
- the second ends 96, 98 of each of the first and second panels 90, 92 are provided with a notched sleeve 102 formed generally in the manner described above.
- the first and second panels 90, 92 of the intensifier membrane 80 are attached to a
- Support bracket 120 includes a pair of inwardly extending clip portions 122 disposed along opposite side edges 124, 126. A tab portion 128 extends from a lower edge 130 of the support bracket 120.
- the support bracket 120 is mounted to the seat back frame 20.
- the air bag unit 24 is mounted to the support bracket 120. -10-
- a generally U-shaped spring retaining wire 132 including a base portion 134 and two leg portions 136 extending from the base portion 134
- each leg portion 136 is inserted in a corresponding sleeve 102 of the first and second panels 90, 92.
- the open end of spring retaining wire 132 is forced together and the wire is placed between the clips 122 of support bracket 120, as shown in Figure 13.
- the spring force of the wire 132 holds the wire 132 tightly in the clips 122.
- the wire 132 is provided with hooks 138 disposed at the ends of the leg portions 136. Hooks 138 prevent retaining wire 132 from sliding down on the clips 122.
- the retaining wire 132 is further trapped between tab portion 128 and frame 20 to restrain the wire 132 from sliding upward.
- intensifier membrane 80 In operation, as the air bag begins to inflate, forces are applied to the intensifier membrane 80. Because intensifier membrane 80 is made from a material with high strength and low elasticity, the intensifier membrane 80 causes seam 28 to tear open so that the air bag is deployed through the deployment split 84 in foam padding 82 and through the tear in the seam created by the intensifier membrane 80.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9713012-5A BR9713012A (en) | 1996-11-12 | 1997-09-12 | Directional guiding system for protective air bag, and, process for directing a side protective air bag mounted on a vehicle seat |
CA002271143A CA2271143C (en) | 1996-11-12 | 1997-09-12 | Side air bag directional guide system |
AU43338/97A AU4333897A (en) | 1996-11-12 | 1997-09-12 | Side air bag directional guide system |
DE69709778T DE69709778T2 (en) | 1996-11-12 | 1997-09-12 | DIRECTIONAL CONTROL SYSTEM FOR SIDE AIRBAG |
AT97941429T ATE209121T1 (en) | 1996-11-12 | 1997-09-12 | DIRECTIONAL GUIDANCE SYSTEM FOR SIDE AIRBAG |
EP97941429A EP0936979B1 (en) | 1996-11-12 | 1997-09-12 | Side air bag directional guide system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/745,743 | 1996-11-12 | ||
US08/745,743 US5927749A (en) | 1996-11-12 | 1996-11-12 | Side air bag directional guide system |
US08/833,416 US5967546A (en) | 1996-11-12 | 1997-04-04 | Side air bag directional guide system |
US08/833,416 | 1997-04-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998021063A1 true WO1998021063A1 (en) | 1998-05-22 |
Family
ID=27114512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/015635 WO1998021063A1 (en) | 1996-11-12 | 1997-09-12 | Side air bag directional guide system |
Country Status (10)
Country | Link |
---|---|
US (1) | US5967546A (en) |
EP (1) | EP0936979B1 (en) |
CN (1) | CN1244841A (en) |
AT (1) | ATE209121T1 (en) |
AU (1) | AU4333897A (en) |
BR (1) | BR9713012A (en) |
CA (1) | CA2271143C (en) |
DE (1) | DE69709778T2 (en) |
ES (1) | ES2168671T3 (en) |
WO (1) | WO1998021063A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
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WO1999015375A1 (en) * | 1997-09-25 | 1999-04-01 | Johnson Controls Technology Company | Seat mounted airbag with deployment force concentrator |
EP1024979A2 (en) * | 1997-10-24 | 2000-08-09 | Breed Automotive Technology, Inc. | Force directing airbag deployment pocket |
WO2000053462A1 (en) * | 1999-03-05 | 2000-09-14 | Magna Seating Systems Inc. | Self locking fastener |
FR2806685A1 (en) * | 2000-03-22 | 2001-09-28 | Peugeot Citroen Automobiles Sa | Automobile seat with lateral airbag comprising casing body housed in cavity in seat padding and junction part delimiting narrow channel for passage of airbag |
US6382665B2 (en) * | 1999-03-05 | 2002-05-07 | Magna Seating Systems Inc. | Self aligning and locking fastener |
EP1069005A3 (en) * | 1999-07-16 | 2003-03-26 | Johnson Controls Technology Company | Assembly with trim cover for housing an inflatable airbag |
EP1279555A3 (en) * | 1999-03-05 | 2003-11-19 | Magna Seating Systems Inc. | Seat assembly for a vehicle |
EP1803614A1 (en) * | 2005-12-28 | 2007-07-04 | Mazda Motor Corporation | Vehicle seat |
WO2007134737A1 (en) * | 2006-05-19 | 2007-11-29 | Autoliv Development Ab | Subassembly |
WO2008043505A1 (en) * | 2006-10-10 | 2008-04-17 | Faurecia Autositze Gmbh | Vehicle seat comprising an integrated airbag module |
ES2505418A1 (en) * | 2014-08-08 | 2014-10-09 | Seat, S.A. | Airbag module (Machine-translation by Google Translate, not legally binding) |
US9688231B2 (en) | 2014-10-28 | 2017-06-27 | Toyota Boshoku Kabushiki Kaisha | Vehicle seat |
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US20100295282A1 (en) * | 2009-05-21 | 2010-11-25 | Hyundai Motor Company | Seat with side airbag for vehicles |
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EP0788940A2 (en) * | 1995-09-18 | 1997-08-13 | Toyota Jidosha Kabushiki Kaisha | Seat structure having a side impact air bag apparatus |
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Publication number | Priority date | Publication date | Assignee | Title |
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US5678853A (en) * | 1996-06-26 | 1997-10-21 | Morton International, Inc. | Airbag module with deployment chute |
-
1997
- 1997-04-04 US US08/833,416 patent/US5967546A/en not_active Expired - Lifetime
- 1997-09-12 EP EP97941429A patent/EP0936979B1/en not_active Expired - Lifetime
- 1997-09-12 CN CN97199640A patent/CN1244841A/en active Pending
- 1997-09-12 AU AU43338/97A patent/AU4333897A/en not_active Abandoned
- 1997-09-12 DE DE69709778T patent/DE69709778T2/en not_active Expired - Lifetime
- 1997-09-12 CA CA002271143A patent/CA2271143C/en not_active Expired - Lifetime
- 1997-09-12 BR BR9713012-5A patent/BR9713012A/en not_active IP Right Cessation
- 1997-09-12 AT AT97941429T patent/ATE209121T1/en not_active IP Right Cessation
- 1997-09-12 ES ES97941429T patent/ES2168671T3/en not_active Expired - Lifetime
- 1997-09-12 WO PCT/US1997/015635 patent/WO1998021063A1/en active IP Right Grant
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GB2293355A (en) * | 1994-09-08 | 1996-03-27 | Alliedsignal Deutschland Gmbh | A side impact airbag deploying from a flexible pocket, attached to the vehicle at two points |
GB2296476A (en) * | 1994-12-20 | 1996-07-03 | Ikeda Bussan Co | Vehicular seat with side air-bag vertically mounted in a cutout or groove in the seat side panel |
US5498030A (en) * | 1995-03-28 | 1996-03-12 | General Motors Corporation | Air bag module |
EP0788940A2 (en) * | 1995-09-18 | 1997-08-13 | Toyota Jidosha Kabushiki Kaisha | Seat structure having a side impact air bag apparatus |
EP0768215A2 (en) * | 1995-10-11 | 1997-04-16 | Toyota Jidosha Kabushiki Kaisha | Seat structure having a side impact air bag apparatus |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999015375A1 (en) * | 1997-09-25 | 1999-04-01 | Johnson Controls Technology Company | Seat mounted airbag with deployment force concentrator |
EP1024979A2 (en) * | 1997-10-24 | 2000-08-09 | Breed Automotive Technology, Inc. | Force directing airbag deployment pocket |
EP1024979A4 (en) * | 1997-10-24 | 2003-06-04 | Breed Automotive Tech | Force directing airbag deployment pocket |
WO2000053462A1 (en) * | 1999-03-05 | 2000-09-14 | Magna Seating Systems Inc. | Self locking fastener |
US6382665B2 (en) * | 1999-03-05 | 2002-05-07 | Magna Seating Systems Inc. | Self aligning and locking fastener |
EP1279555A3 (en) * | 1999-03-05 | 2003-11-19 | Magna Seating Systems Inc. | Seat assembly for a vehicle |
EP1069005A3 (en) * | 1999-07-16 | 2003-03-26 | Johnson Controls Technology Company | Assembly with trim cover for housing an inflatable airbag |
FR2806685A1 (en) * | 2000-03-22 | 2001-09-28 | Peugeot Citroen Automobiles Sa | Automobile seat with lateral airbag comprising casing body housed in cavity in seat padding and junction part delimiting narrow channel for passage of airbag |
EP1803614A1 (en) * | 2005-12-28 | 2007-07-04 | Mazda Motor Corporation | Vehicle seat |
US7556287B2 (en) | 2005-12-28 | 2009-07-07 | Mazda Motor Corporation | Seat with airbag unit for vehicle |
WO2007134737A1 (en) * | 2006-05-19 | 2007-11-29 | Autoliv Development Ab | Subassembly |
DE102006023624B4 (en) * | 2006-05-19 | 2013-07-04 | Autoliv Development Ab | module |
WO2008043505A1 (en) * | 2006-10-10 | 2008-04-17 | Faurecia Autositze Gmbh | Vehicle seat comprising an integrated airbag module |
ES2505418A1 (en) * | 2014-08-08 | 2014-10-09 | Seat, S.A. | Airbag module (Machine-translation by Google Translate, not legally binding) |
US9688231B2 (en) | 2014-10-28 | 2017-06-27 | Toyota Boshoku Kabushiki Kaisha | Vehicle seat |
US9751488B1 (en) | 2014-10-28 | 2017-09-05 | Toyota Boshoku Kabushiki Kaisha | Vehicle seat |
Also Published As
Publication number | Publication date |
---|---|
CN1244841A (en) | 2000-02-16 |
EP0936979A1 (en) | 1999-08-25 |
EP0936979B1 (en) | 2001-11-21 |
BR9713012A (en) | 2000-01-25 |
ATE209121T1 (en) | 2001-12-15 |
DE69709778D1 (en) | 2002-02-21 |
US5967546A (en) | 1999-10-19 |
CA2271143C (en) | 2005-07-26 |
AU4333897A (en) | 1998-06-03 |
DE69709778T2 (en) | 2002-08-08 |
ES2168671T3 (en) | 2002-06-16 |
CA2271143A1 (en) | 1998-05-22 |
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