WO2012147490A1 - カーテンエアバッグ装置 - Google Patents
カーテンエアバッグ装置 Download PDFInfo
- Publication number
- WO2012147490A1 WO2012147490A1 PCT/JP2012/059407 JP2012059407W WO2012147490A1 WO 2012147490 A1 WO2012147490 A1 WO 2012147490A1 JP 2012059407 W JP2012059407 W JP 2012059407W WO 2012147490 A1 WO2012147490 A1 WO 2012147490A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- airbag
- pillar
- curtain
- airbag device
- curtain airbag
- Prior art date
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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
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
-
- 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
- B60R21/213—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle roof frames or pillars
-
- 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
- B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
-
- 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
- B60R21/237—Inflatable members characterised by the way they are folded
Definitions
- the present invention relates to a so-called curtain airbag device that protects an occupant by deploying between a vehicle body side wall and an occupant when an air bag attached to a side of a vehicle interior collides with the vehicle.
- the airbag device is disposed inside a driver airbag device housed inside the steering wheel, a curtain airbag device disposed along the upper edge of the window frame, or an instrument panel (instrument panel).
- a driver airbag device housed inside the steering wheel
- a curtain airbag device disposed along the upper edge of the window frame
- an instrument panel instrument panel
- a curtain airbag device includes a gas generator that generates inflation gas; and an airbag (cushion) that is folded in a long shape in a accommodated state and is deployed by gas supplied from the gas generator.
- the produced deployment airbag is rolled up from the lower side in a roll shape or a bellows shape to form a rod shape.
- the rod-shaped airbag is fixed to the upper part of the window frame and the pillar.
- it is effective to make the pillar (particularly, the A pillar) thinner, but it is difficult to make the pillar thinner due to the presence of the airbag.
- the curtain airbag there is a limit in forming the whole thinly when it is formed into a roll shape in order to ensure a sufficient restrained area and strength. Further, the presence of a clip for fixing the garnish and a tether clip for fixing the tether in the pillar also hinders the narrowing of the A pillar.
- the present invention has been made in view of the above-described problems, and an object thereof is to provide a curtain airbag device applicable to a narrow pillar.
- the present invention provides an air bag that protects an occupant by deploying in a curtain shape in the vicinity of a side window in a vehicle cabin in a curtain airbag device that is accommodated at least from the A pillar to the upper part of the window frame A gas generator for supplying inflation gas to the airbag.
- the airbag is folded into a roll shape at the time of housing and is formed into a rod shape.
- the diameter of the airbag is partially reduced by crushing the airbag partially toward the center at a location where the installation area of the A pillar is small. According to the present invention having the above-described configuration, there is an effect that it is possible to easily cope with the diameter reduction of the A pillar.
- the initial inflation location of the airbag is positioned on the body structure side of the A pillar. Further, when the diameter of the airbag is reduced, the airbag can be pushed in from the lower side to have a U-shaped cross section. In this case, the U-shaped section is preferably formed on the connection structure side of the A pillar garnish and the weather strip.
- FIG. 1 is an explanatory view showing an installation state of a curtain airbag device according to the present invention, and shows a state in which a pillar garnish is removed.
- FIG. 2 is a view showing a cross section of the curtain airbag according to the embodiment of the present invention.
- FIG. 3 is a plan view showing the structure of the main part of the curtain airbag according to the embodiment of the present invention. 4 shows an AA section and a BB section of FIG.
- FIGS. 5A and 5B show a cross-sectional structure of a curtain airbag according to another embodiment of the present invention, corresponding to the position BB in FIG.
- FIG. 1 (A) shows the installation state of the curtain airbag device, and shows the state where the pillar garnish is removed.
- a curtain airbag apparatus includes an airbag 10 that protects an occupant by deploying in a curtain shape near a side window in a vehicle interior; and a gas generator that supplies inflation gas to the airbag 10. 14.
- the airbag 10 is folded into a roll shape at the time of accommodation and is formed into a rod shape.
- the narrowed portion 22 a that reduces the diameter of the airbag 10 by crushing the airbag 10 partially toward the center at a location where the installation area of the A pillar 12 ⁇ / b> A is small. 22b is formed.
- the narrow part of the A pillar includes, for example, a part where the garnish clips 20a and 20b are provided and a part where a tether clip (not shown) is provided.
- a tether clip not shown
- FIGS. 2 and 4 in this embodiment, when the diameter of the airbag is reduced, the roll-shaped airbag 10 is pushed (crushed) from below by a jig (not shown), It is U-shaped.
- the diameter-reduced portions 38U and 38L can be formed by pushing the airbag from above and below.
- a so-called roll + 1 configuration in which the airbag is rolled and then folded once can be employed.
- the U-shaped portion 42 is formed on the body structure material side of the A pillar (see FIG. 2).
- Reference numeral 44 indicates an initial expansion location.
- the A pillar 12A itself can be reduced in diameter as shown in FIG.
- the initial expansion locations (end portions) 32 and 40 are arranged on the body structure material side of the A pillar (see FIG. 2) so that the deployment behavior is not greatly affected.
- reference numeral 11 denotes a large-diameter portion (normal portion) of the airbag 10; 12B and 12C denote a B pillar and a C pillar, respectively.
- Reference numeral 16 denotes an airbag attachment tab.
- Reference numeral 18 denotes a pillar garnish.
- reference numeral 26 denotes a windshield; 28 denotes a roof side rail; and 30 denotes a weather strip.
- the U-shaped section 24 a of the airbag 10 is formed on the connection structure side between the A pillar garnish 18 and the weather strip 30. Accordingly, when the airbag 10 is deployed, the airbag 10 pushes the garnish 18 as a lump having high rigidity, so that the airbag 10 can be deployed (popped out) into the vehicle reliably and smoothly. This is because the U-shaped portion 24a has a higher compression density than other portions, and the rigidity as a structure is increased.
- a sensor provided in the vehicle catches the abnormal vibration and sends an ignition signal to the inflator 14 based on the signal.
- a propellant (not shown) that drives the inflator 14 in response to the ignition signal from the sensor is provided inside the inflator 14.
- inflation gas flows into the airbag 10 and the airbag 10 starts to inflate.
- the tapes 30a and 30b are broken, and the airbag 10 is deployed downward along the window.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Description
12A:Aピラー
14:インフレータ
18:ガーニッシュ
20a,20b:ガーニッシュクリップ
22a,22b:細径化部
24,38U,38L:潰された部分
Claims (7)
- 少なくともAピラーから窓枠上部に収容されるカーテンエアバッグ装置において、
車室内の側面窓付近でカーテン状に展開することで乗員を保護するエアバッグと;
前記エアバッグに対して膨張ガスを供給するガス発生器とを備え、
前記エアバッグは、収容時にロール状にたたまれて棒状とされ、
前記エアバッグを収容する上でAピラーの設置面積が狭い箇所で、当該エアバッグを部分的に中心に向かって潰すことで、当該エアバッグの径を部分的に細径化することを特徴とするカーテンエアバッグ装置。 - 前記Aピラーを前記狭い箇所において、他の箇所よりも細径化したことを特徴とする請求項1に記載のカーテンエアバッグ装置。
- 前記エアバッグの初期膨張箇所が前記Aピラーのボディー構造部側に位置するようにしたことを特徴とする請求項1又は2に記載のカーテンエアバッグ装置。
- 前記細径化に際して、前記エアバッグを下側から押し込んで、断面U字状とすることを特徴とする請求項1乃至3のいずれか1項に記載のカーテンエアバッグ装置。
- 前記断面U字状の箇所は、Aピラーガーニッシュとウェザーストリップの接続構造側に形成されることを特徴とする請求項4に記載のカーテンエアバッグ装置。
- 前記細径化に際して、前記エアバッグを上下から押し込むことを特徴とする請求項1乃至3のいずれか1項に記載のカーテンエアバッグ装置。
- 前記狭い箇所は、ガーニッシュクリップが設けられる箇所であることを特徴とする請求項1乃至6の何れか1項に記載のカーテンエアバッグ装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/114,313 US9283917B2 (en) | 2011-04-28 | 2012-04-05 | Curtain airbag device |
JP2013511990A JP5635687B2 (ja) | 2011-04-28 | 2012-04-05 | カーテンエアバッグ装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011-101869 | 2011-04-28 | ||
JP2011101869 | 2011-04-28 |
Publications (1)
Publication Number | Publication Date |
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WO2012147490A1 true WO2012147490A1 (ja) | 2012-11-01 |
Family
ID=47072014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/059407 WO2012147490A1 (ja) | 2011-04-28 | 2012-04-05 | カーテンエアバッグ装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9283917B2 (ja) |
JP (1) | JP5635687B2 (ja) |
WO (1) | WO2012147490A1 (ja) |
Cited By (3)
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JP2017177977A (ja) * | 2016-03-29 | 2017-10-05 | 豊田合成株式会社 | 頭部保護エアバッグの折り完了体 |
JP2019038366A (ja) * | 2017-08-24 | 2019-03-14 | 豊田合成株式会社 | 頭部保護エアバッグの折り完了体 |
US10562481B2 (en) | 2017-08-24 | 2020-02-18 | Toyoda Gosei Co., Ltd. | Airbag package of an airbag for head protection |
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JP5783818B2 (ja) * | 2011-06-23 | 2015-09-24 | 芦森工業株式会社 | エアバッグ装置 |
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JP5907190B2 (ja) * | 2014-01-29 | 2016-04-26 | トヨタ自動車株式会社 | ピラーガーニッシュ取付構造およびテザークリップ |
US9616840B2 (en) * | 2015-08-14 | 2017-04-11 | Toyota Motor Engineering & Manufacturing North America, Inc. | Inspection windows for curtain side airbag systems |
DE102018009358A1 (de) | 2018-11-29 | 2020-06-04 | Dalphi Metal Espana, S.A. | Airagmodul und verfahren zu seiner herrstellung |
JP7482378B2 (ja) * | 2021-04-19 | 2024-05-14 | トヨタ紡織株式会社 | 乗物用エアバッグの巻上装置 |
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Also Published As
Publication number | Publication date |
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US20140054879A1 (en) | 2014-02-27 |
US9283917B2 (en) | 2016-03-15 |
JPWO2012147490A1 (ja) | 2014-07-28 |
JP5635687B2 (ja) | 2014-12-03 |
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