WO2021019842A1 - Coussin de sécurité gonflable et dispositif de coussin de sécurité gonflable - Google Patents

Coussin de sécurité gonflable et dispositif de coussin de sécurité gonflable Download PDF

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Publication number
WO2021019842A1
WO2021019842A1 PCT/JP2020/016134 JP2020016134W WO2021019842A1 WO 2021019842 A1 WO2021019842 A1 WO 2021019842A1 JP 2020016134 W JP2020016134 W JP 2020016134W WO 2021019842 A1 WO2021019842 A1 WO 2021019842A1
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WO
WIPO (PCT)
Prior art keywords
chamber
airbag
expansion
occupant
inflated
Prior art date
Application number
PCT/JP2020/016134
Other languages
English (en)
Japanese (ja)
Inventor
栄 杉森
坂本　浩
匡俊 横田
Original Assignee
Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ株式会社
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 Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ株式会社 filed Critical Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ株式会社
Publication of WO2021019842A1 publication Critical patent/WO2021019842A1/fr

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    • 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
    • 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
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • 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
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers

Definitions

  • the present invention relates to a far-side airbag and an airbag device mounted on a side portion of a vehicle seat on the center side in the vehicle width direction.
  • Patent Document 1 describes that a far-side airbag is composed of a chest chamber and a head chamber above the chest chamber in order to restrain the chest and head of an occupant.
  • Patent Document 2 describes a side airbag device having an airbag that expands and expands above the head of an occupant.
  • the upper part of the airbag has an airbag protrusion that expands so as to wrap around the front of the occupant's head. This airbag protrusion restrains the occupant's head in the event of a collision with the vehicle from diagonally forward.
  • An object of the present invention is to provide an airbag and an airbag device for the far side, which are excellent in restraining performance of the head and upper body of an occupant.
  • the airbag of the present invention is an airbag of an airbag device for the far side mounted on the side portion of the seat back on the center side in the vehicle width direction, and has a first inflatable portion that expands to the side of the occupant and a rear portion. Inflates between the upper part of the first inflated part and the occupant's head, and communicates with the second inflated part in which the front part inflates in front of the occupant's shoulder and in the first inflated part and in the second inflated part.
  • the rear portion of the second inflatable portion has a communication portion, and is bent from the first inflatable portion to the occupant side in a state where the airbag is inflated, and the upper portion of the front portion of the second inflatable portion is in the rear portion. On the other hand, it is continuous in a bent shape.
  • the first expansion portion has an annular chamber orbiting the first expansion portion and a non-expansion portion surrounded by the annular chamber.
  • the communication portion is a first bottleneck located at the rear portion of the upper part of the first expansion portion, and when the airbag is expanded, the rear portion of the first expansion portion is the first bottleneck. Bend toward the occupant side.
  • the rear portion of the second expansion portion communicates with the first expansion portion via the first bottleneck, extends forward, and at least a part of the occupant's head and the first in the expanded state. 1 It is a first chamber located between the upper part of the expansion part.
  • the front portion of the second expansion portion has an upper portion communicating with the front portion of the first chamber, and in an expanded state, expands downward from the front portion of the first chamber. It has a second chamber located in front of the occupant's shoulder, and the lower portion of the second chamber is joined to the front portion of the first expansion portion.
  • a second bottleneck is provided between the first chamber and the second chamber, and when the airbag expands, the second expansion portion bends at the second bottleneck.
  • the lower portion of the second expansion portion communicates with the inside of the first expansion portion via a communication portion of the front portion of the first expansion portion in the vertical direction and expands upward. It has a second chamber and a first chamber whose front portion communicates with the upper part of the second chamber via a second bottleneck.
  • the rear portion of the first chamber is joined to the rear portion of the upper part of the first expansion portion.
  • the lower portion communicates with the occupant side of the front portion of the first expansion portion via a communication port, and has a second chamber that expands upward from the communication port.
  • the upper part of the second chamber and the front part of the first chamber are joined.
  • first tether for locating the rear portion of the second inflatable portion on the occupant side of the upper portion of the first inflatable portion when the airbag is inflated.
  • the upper end of the first tether is connected to the rear portion of the second expansion portion, and the lower end of the first tether is connected to the first expansion portion or the seat back frame.
  • the lower end of the first tether is connected to the non-expanding portion.
  • the front end of the first tether is connected to the front portion of the second expansion portion, and the rear end is connected to the seat back frame or the rear portion of the first expansion portion.
  • the airbag device of the present invention has the airbag of the present invention and an inflator for inflating the airbag.
  • the tilt of the occupant's head is restrained by the intervention of the second inflated portion between the upper part of the first inflated portion and the occupant's head at the time of a side collision.
  • the first chamber of the second expansion portion is interposed between the upper part of the first expansion portion and the occupant's head at the time of a side collision.
  • the second inflated portion restrains the occupant's head and further near the shoulder at the time of a side collision from diagonally forward.
  • FIG. 5 is a sectional view taken along line VI-VI of FIG.
  • FIG. 5 is a sectional view taken along line VII-VII of FIG.
  • It is a side view of the expansion completion state of the airbag which concerns on another embodiment.
  • It is a side view of the expansion completion state of the airbag which concerns on another embodiment.
  • FIG. 12a is an enlarged view of a part of the airbag according to another embodiment
  • FIG. 12b is a sectional view taken along line XIIb-XIIb of FIG. 12a.
  • FIG. 12a is a perspective view of the expansion completion state of the airbag which concerns on another embodiment.
  • FIG. 12b is a perspective view of the expansion completion state of the airbag which concerns on another embodiment.
  • the front-rear, up-down, and left-right directions coincide with the front-rear, up-down, and left-right directions of the vehicle unless otherwise specified.
  • FR, UP, and CENTER indicate the center side of the vehicle in the front direction, the upward direction, and the vehicle width direction, respectively.
  • FIGS. 1 to 7 show the airbag 1 according to the first embodiment of the present invention, and FIG. 1 shows a state in which the airbag 1 before expansion is flatly spread out.
  • FIGS. 2 to 7 show a state in which the airbag is expanded and expanded.
  • the airbag device according to the present embodiment is a so-called far-side airbag device, and is mounted on the side portion of the vehicle seat on the center side in the vehicle width direction.
  • the seat is the left seat of the vehicle, and the airbag device is mounted on the right side of the seat.
  • the seat is equipped with a seat cushion, a seat back and a headrest.
  • the seat back has a seat back frame that serves as its skeleton.
  • the airbag device is attached to the seat back frame.
  • the airbag device includes an airbag 1 that is folded and stored in a seat back, and an inflator 2 that supplies an expansion gas to the airbag 1.
  • the peripheral edges of the two panels are sewn by seams 33, and the central portion of the first expansion portion 10 is sewn by seams 34. It is sutured.
  • the airbag 1 has a size capable of restraining the occupant's head, shoulders, chest and abdomen.
  • the airbag 1 is arranged in a lower first expansion portion 10 and an upper side of the first expansion portion 10 into which the gas from the inflator 2 first flows in and expands. It has a second expansion portion 20 that expands due to the gas flowing in from the expansion portion 10.
  • the first expansion portion 10 has an insertion port 11 of the inflator 2, an inflatable annular chamber 12 communicating with the insertion port 11, and a non-expansion portion 13 surrounded by the annular chamber 12. There is.
  • the airbag 1 is connected to a rear side 1a extending substantially in the vertical direction and a rear side 1a, and is connected to an upper side 1b extending substantially in the front-rear direction and the upper side 1b.
  • the upper front side 1c extending substantially in the vertical direction and the upper front side 1c extending substantially in the front-rear direction and extending in the upper front side 1d and the upper cut side 1d extending substantially in the front-rear direction.
  • the seam 33 is provided along these sides 1a to 1h.
  • the sides 1g and 1h are substantially parallel, and the space between the rear ends thereof is the insertion port 11 of the inflator 2.
  • one end of a gas duct pipe connected to the inflator may be inserted into the insertion port 11.
  • the cut portion 4 extends from the upper portion of the front side of the airbag 1 toward the rear.
  • the lower side of the cut portion 4 is the first expansion portion 10, and the upper side of the cut portion 4 is the second expansion portion 20.
  • the first expansion portion 10 is provided with an annular seam 34 at the center thereof, and an annular chamber 12 is formed between the seam 34 and the seam 33.
  • the inside of the seam 34 is the non-expanding portion 13.
  • the upper cut side 1d and the portions 33d and 33e along the lower cut side 1e extend from the front sides 1c and 1f of the airbag 1 to near the rear side 1a.
  • Eyelet-shaped seams 35 are provided at the rear ends of the seams 33d and 33e.
  • the area between the vicinity of the eyelet-shaped seam 35 and the seam 33 along the rear side 1a is a first bottleneck 14 that connects the first expansion portion 10 and the second expansion portion 20.
  • the second expansion portion 20 has a chamber that is surrounded by the seams 33 and extends substantially in the front-rear direction.
  • the seam 33d along the cut side 1d is an approaching portion 33d'approaching the upper side 1b in the vicinity of the eyelet-shaped seam 35, and is along the approaching portion 33d' and the upper side 1b.
  • the space between the seam 33 and the seam 33 is the second airo 23.
  • the chamber of the second expansion portion 20 is composed of a first chamber 21 on the first bottleneck 14 side of the second bottleneck 23 and a second chamber 22 on the front side of the second bottleneck 23.
  • the tip of the second expansion portion 20 (front end in FIG. 1) is joined to the front portion of the first expansion portion 10 by suturing.
  • the first tether 5 is for locating the expanded first chamber 21 on the occupant P (FIG. 3) side.
  • the upper end of the tether 5 is sewn to the first chamber 21 portion of the upper side 1b.
  • the lower end of the tether 5 is sewn on the upper part of the non-expanding portion 13.
  • the second tether 6 is for suppressing the front side of the expanded first expanding portion 10 from retreating from the occupant to the right.
  • the front edge of the tether 6 is sewn near the front portion of the cut side 1e.
  • the rear end of the tether 6 is connected to the seat back frame.
  • the upper end of the third tether 7 is sewn near the middle of the rear side 1a in the vertical direction, and the lower end is sewn on the lower part of the front side 1f.
  • the inflator 2 When a vehicle equipped with an airbag device having an airbag 1 configured in this way collides sideways from the right side, the inflator 2 operates to generate gas.
  • the gas supplied from the inflator 2 to the first expansion section 10 expands the annular chamber 12 and is supplied to the second expansion section 20 via the first bottleneck 14 to expand the first chamber 21 and the second chamber 22. Let me.
  • the expanded first chamber 21 is bent toward the occupant P near the first bottleneck 14 by being pulled by the tether 5, and the upper part of the expanded first expansion portion 10 and the head of the occupant P are bent. It intervenes with H.
  • the second expansion portion 20 bends near the second bottleneck 23, and the second chamber 22 expands downward from the front end of the first chamber 21.
  • the second chamber 22 is located on the front side of the right shoulder of the occupant P and restrains the vicinity of the right shoulder.
  • the tilt of the occupant head H is restrained.
  • the second chamber 22 expands and expands from the front of the head of the occupant P to the front side near the right shoulder, the movement of the occupant's head H to the right front in the case of a side collision from the diagonally right front is restricted.
  • the tether 5 for bending the first chamber 21 toward the occupant P side is installed between the upper side 1b and the non-expandable portion 13, but the airbag 1A in FIG. 8 shows. As described above, the lower end of the tether 5 may be sewn to the rear side 1a of the first expansion portion 10.
  • the rear end of the tether 5 may be connected to the seat back frame as in the airbag 1B of FIG.
  • a tether cloth 41 straddling the rear surface of the expanded first chamber 21 and the upper rear surface of the expanded annular chamber 12 may be provided.
  • the front end of the tether 5 may be connected to the second chamber 22, and the rear end may be connected to the seat back frame or the rear portion of the first expansion portion 10.
  • FIGS. 8 to 11 Other configurations of airbags 1A to 1D in FIGS. 8 to 11 are the same as those of airbag 1, and the same reference numerals indicate the same parts.
  • the panels 31 and 32 are provided with slits 42 extending substantially in the front-rear direction in the vicinity of the eyelet-shaped seams 35, and the slits 42 of the panels 31 and 32 are provided.
  • the upper portion and the lower portion of the above may be overlapped and extended to the occupant P side, and the overlapped portion may be sewn by the stitch 43.
  • the first bottleneck 14 that communicates the first expansion portion 10 and the second expansion portion 20 is located above the first expansion portion 10, but the airbag shown in FIG. 13 As in 1E, the first bottleneck 15 may be located in front of the first expansion portion 10, and the second bottleneck 22 and the annular chamber 12 may communicate with each other by the first bottleneck 15. The first bottleneck 15 is located in the middle of the first expansion portion 10 in the vertical direction.
  • the first bottleneck 14 that communicates the first chamber 21 and the annular chamber 12 is not provided.
  • the rear portion of the first chamber 21 is connected to the rear portion of the upper portion of the first expansion portion 10 by suturing or the like.
  • the rear portion of the first chamber 21 and the upper portion of the annular chamber 12 communicate with each other by the first bottleneck 14, and the lower portion of the second chamber 22 and the front portion of the annular chamber 12 are communicated by the first bottleneck 15.
  • the second bottleneck 23 that communicates the first chamber 21 and the second chamber 22 is not provided, and the first chamber 21 and the second chamber 22 do not directly communicate with each other.
  • the front part of the first chamber 21 and the upper part of the second chamber 22 are connected by suture or the like.
  • Airbag 2 Inflator 4 Notch 5,6,7 Tether 10 1st expansion 12 Circular chamber 13 Non-expansion 14,15 1st bottleneck 20 2nd expansion 21 1st chamber 22 2nd chamber 23 2nd bottleneck 31,32 Panel 33, 34, 35, 43 Seams

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

Abstract

Selon la présente invention, lorsqu'un véhicule subit une collision latérale, du gaz fourni par un dispositif de gonflage (2) à une première section de gonflage (10) gonfle une chambre annulaire (12) et est fourni en même temps à une seconde section de gonflage (20) par l'intermédiaire d'un premier chemin étroit (14) pour gonfler une première chambre (21) et une seconde chambre (22). La première chambre (21) est pliée à proximité du premier chemin étroit (14) vers un passager (P) devant être interposé entre la section supérieure de la première section de gonflage (10) gonflée et la tête (H) du passager (P). La seconde chambre (22) est gonflée vers le bas à partir de l'extrémité avant de la première chambre (21). La seconde chambre (22) est située devant l'épaule droite du passager (P) pour retenir l'épaule droite et son voisinage. Du fait que la seconde chambre (22) est gonflée et déployée depuis le côté avant de la tête du passager (P) vers le côté avant de l'épaule droite et son voisinage, le mouvement de la tête (H) de passager vers le côté avant droit est limité dans le cas d'une collision latérale provenant du côté avant droit oblique.
PCT/JP2020/016134 2019-07-31 2020-04-10 Coussin de sécurité gonflable et dispositif de coussin de sécurité gonflable WO2021019842A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019140999A JP7331535B2 (ja) 2019-07-31 2019-07-31 エアバッグ及びエアバッグ装置
JP2019-140999 2019-07-31

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WO2021019842A1 true WO2021019842A1 (fr) 2021-02-04

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PCT/JP2020/016134 WO2021019842A1 (fr) 2019-07-31 2020-04-10 Coussin de sécurité gonflable et dispositif de coussin de sécurité gonflable

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WO (1) WO2021019842A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11230250B2 (en) * 2018-06-20 2022-01-25 Isi Automotive Holding Gmbh Restraint device for reducing an abrupt sideward movement and/or forward movement of an occupant
US11919468B2 (en) * 2017-12-08 2024-03-05 Zf Automotive Germany Gmbh Side airbag and vehicle-occupant restraint system having a side airbag

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022104440A1 (de) * 2022-02-24 2023-08-24 Autoliv Development Ab Rückhaltevorrichtung, Rückhaltebaugruppe und Sitzeinheit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006008105A (ja) * 2004-05-27 2006-01-12 Toyoda Gosei Co Ltd サイドエアバッグ装置
JP2017537025A (ja) * 2014-12-10 2017-12-14 ティ．ケイ．ホールディングス、インコーポレイテッド エアバッグモジュール
US20190061675A1 (en) * 2017-08-24 2019-02-28 Hyundai Motor Compnay Side airbag device for a vehicle
US20190161052A1 (en) * 2017-11-15 2019-05-30 TB Deu Abwicklungs-Aktiengesellschaft Airbag for a vehicle occupant restraint system of a motor vehicle
WO2019110705A1 (fr) * 2017-12-08 2019-06-13 Trw Automotive Gmbh Sac gonflable latéral et système de retenue de l'occupant d'un véhicule à l'aide d'un sac gonflable latéral

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006008105A (ja) * 2004-05-27 2006-01-12 Toyoda Gosei Co Ltd サイドエアバッグ装置
JP2017537025A (ja) * 2014-12-10 2017-12-14 ティ．ケイ．ホールディングス、インコーポレイテッド エアバッグモジュール
US20190061675A1 (en) * 2017-08-24 2019-02-28 Hyundai Motor Compnay Side airbag device for a vehicle
US20190161052A1 (en) * 2017-11-15 2019-05-30 TB Deu Abwicklungs-Aktiengesellschaft Airbag for a vehicle occupant restraint system of a motor vehicle
WO2019110705A1 (fr) * 2017-12-08 2019-06-13 Trw Automotive Gmbh Sac gonflable latéral et système de retenue de l'occupant d'un véhicule à l'aide d'un sac gonflable latéral

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11919468B2 (en) * 2017-12-08 2024-03-05 Zf Automotive Germany Gmbh Side airbag and vehicle-occupant restraint system having a side airbag
US11230250B2 (en) * 2018-06-20 2022-01-25 Isi Automotive Holding Gmbh Restraint device for reducing an abrupt sideward movement and/or forward movement of an occupant

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JP7331535B2 (ja) 2023-08-23
JP2021024312A (ja) 2021-02-22

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