WO2019193890A1 - Airbag and airbag device - Google Patents
Airbag and airbag device Download PDFInfo
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- WO2019193890A1 WO2019193890A1 PCT/JP2019/008305 JP2019008305W WO2019193890A1 WO 2019193890 A1 WO2019193890 A1 WO 2019193890A1 JP 2019008305 W JP2019008305 W JP 2019008305W WO 2019193890 A1 WO2019193890 A1 WO 2019193890A1
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- airbag
- panel
- chamber
- side panel
- front panel
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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
- B60R21/23—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 an airbag and an airbag device for restraining an occupant at the time of a car collision or the like.
- the airbag device has a retainer, an airbag attached to the retainer and folded, and a cover member called a module cover that covers the airbag.
- the inflator When the collision of the vehicle is detected by the sensor, the inflator is activated and the airbag is inflated and deployed by the gas generated from the inflator.
- Patent Document 1 describes an airbag for a driver's seat that can suppress protrusion to the occupant side during initial inflation and can restrain an occupant moving in an oblique direction.
- crew side of the driver's seat airbag and the inflator opening are connected by a tether.
- An object of the present invention is to provide an airbag and an airbag apparatus that have a large expansion thickness and are suitable for restraining an occupant when an oblique collision or a micro-overlap collision occurs.
- the airbag of the present invention is an airbag including a first chamber and a second chamber that circulates around the passenger side of the first chamber, and includes a front panel on the passenger side, a rear panel on the opposite side of the passenger, A plurality of side panels interposed between the front panel and the rear panel and forming a side peripheral portion of the airbag; and the side sides of the adjacent side panels are joined together, One end of the side panel on the side opposite to the occupant is coupled to the peripheral edge of the rear panel, and the other end of the side panel is coupled to an intermediate portion between the one end and the other end of the side panel. An intermediate portion between the other end portion of the side panel and the intermediate portion is coupled to a peripheral edge portion of the front panel, and the second chamber is connected to the other end portion of the side panel and the Middle Those enclosed by a portion between.
- the other end of the side panel is an overhanging portion that partially overhangs, and the overhanging portion is coupled to the intermediate portion.
- a portion that is not coupled to the intermediate portion on the other end side of the side panel serves as a communication port that communicates the first chamber and the second chamber.
- a recessed portion exists between the front panel and the side panel on the occupant-facing surface of the inflated airbag.
- 3 to 12 side panels are arranged.
- the side panel has a multi-line shape in which a plurality of single-shaped side panels are connected.
- the airbag according to one aspect of the present invention further includes an inner tether that couples the front panel and the rear panel.
- the airbag device of the present invention includes the airbag of the present invention and an inflator that inflates the airbag.
- the airbag of the present invention has a large inflated thickness and is suitable for restraining an occupant when an oblique collision or a minute overlap collision occurs.
- FIG. 2 is a sectional view taken along line II-II in FIG. It is a top view of each panel of the airbag which concerns on embodiment. It is a disassembled perspective view of the airbag which concerns on embodiment.
- This airbag 1 is an airbag for a driver's seat that is inflated and deployed in front of the driver's seat occupant, and is installed in the hub portion of the steering wheel.
- the airbag 1 In the inflated and deployed state, the airbag 1 includes a rear panel 2 that constitutes a rear surface on the hub portion side (opposite side) of the airbag 1, a front panel 4 that constitutes a front surface on the passenger side, and the airbag 1.
- the side panel 5 which comprises the side periphery of this is provided.
- the rear panel 2 and the front panel 4 are joined together via a side panel 5 to form a bag shape.
- the rear panel 2 and the front panel 4 are connected by an inner tether 14.
- the rear panel 2 and the front panel 4 are made of a circular (substantially circular) woven fabric.
- the front panel 4 has a slightly smaller diameter than the rear panel 2.
- the rear panel 2 has the same diameter as the steering wheel. For example, the diameter of the rear panel 2 is about 500 to 700 mm, and the diameter of the front panel 4 is about 400 to 600 mm.
- the rear panel 2 is provided with an inflator opening 2a into which the inflator is inserted.
- a bolt insertion hole 2b through which a bolt for fixing the rear panel 2 to the retainer together with the inflator is inserted is provided around the inflator opening 2a.
- the rear panel 2 is provided with two circular vent holes 2c that allow the inside and the outside of the airbag 1 to communicate with each other.
- the shape, number, and position of the vent hole 2c can be changed as appropriate.
- a plurality of side panels 5 are arranged.
- Each side panel 5 has a pair of short sides 5b, 5c and a pair of long sides (hereinafter referred to as side portions) 5s, 5s, and a narrow portion with a narrow central portion in the longitudinal direction. It has become.
- the short side portion 5c on one end side (opposite side) of the side panel 5 and the peripheral portion of the rear panel 2 are stitched together with a suture thread 22 (FIG. 2).
- the short side portion 5b on the other end side of the side panel 5 is a protruding portion 5a that partially protrudes toward the outside of the side panel 5 (in this example, the central portion).
- the other end side of the side panel 5 is folded back, and the overhanging portion 5a is sewn to the intermediate portion 5d between the short side portions 5b and 5c of the side panel 5 with the suture thread 24 (FIGS. 2 and 4).
- the folded portion of the side panel 5 forms a side panel top portion 5t located on the passenger side when the airbag is inflated.
- the side portions 5s of the adjacent side panels 5 are sewn together by a suture thread 23 (FIG. 2).
- the middle portion between the short side portion 5b and the intermediate portion 5d of the side panel 5 (the portion between the short side portion 5b and the side panel top portion 5t) and the peripheral portion of the front panel 4 are sutures 21 ( 2).
- the inner tether 14 has a cross shape having a central portion 14a and leg portions 14b extending from the central portion 14a in the four radial directions.
- the central portion 14a is stitched to the central portion of the front panel 4 with a suture thread 25 (FIG. 2).
- An end 14c of the leg 14b is provided with an inflator opening 14d and a bolt insertion hole 14e. Bolts for fixing the rear panel 2 and the inflator to the retainer are inserted into the bolt insertion holes 14e.
- the cross-shaped inner tether 14 is used, but the shape is not limited to this.
- the inflated airbag 1 includes a first chamber C1 and a second chamber C2.
- the first chamber C1 is surrounded by a portion between the rear panel 2, the front panel 4, and the intermediate part 5d of the side panel 5 and the short side part 5c.
- the second chamber C2 is surrounded by a portion between the short side portion 5b and the intermediate portion 5d of the side panel 5.
- the portion other than the protruding portion 5a is not coupled to the intermediate portion 5d of the side panel 5, and this portion communicates the first chamber C1 and the second chamber C2. It becomes the communication port A (FIG. 2).
- the second chamber C2 circulates around the passenger side of the first chamber C1.
- the airbag 1 is attached to a retainer (not shown) of the driver's seat airbag device by an attachment ring (not shown) disposed in the airbag 1 along the inflator opening 2a.
- the mounting ring is provided with a plurality of stud bolts, which are inserted into the bolt insertion holes 2b and 14e, the bolt insertion hole of the flange portion of the inflator, and the bolt insertion hole of the retainer, and the nut. By tightening, the driver's seat airbag 1 and the inflator are fixed to the retainer.
- the driver seat airbag 1 is folded and covered with a driver seat airbag device module cover.
- the inflator is activated and gas is ejected into the airbag 1 when the vehicle collides.
- the airbag 1 is inflated by this gas to push open the module cover, and is inflated and deployed between the steering wheel and the passenger to restrain the driver's seat passenger.
- the gas from the inflator is supplied into the first chamber C1, and the first chamber C1 is first inflated. Further, this gas flows into the second chamber C2 through the communication port A and expands the second chamber C2.
- the front panel 4 and the side panel top portion 5t bulge in the occupant direction, and a recess R is formed between the two.
- the recessed portion R circulates around the top panel 4.
- the inflated airbag 1 has a large inflated thickness, and a recessed portion R is formed between the top panel 4 and the side panel top portion 5t, so that the occupant is restrained when an oblique collision or a micro-overlap collision occurs. It becomes a suitable thing. Moreover, the usage amount of a base fabric can be suppressed and the volume and weight of the airbag 1 at the time of folding can be reduced.
- the above embodiment is an example of the present invention, and the present invention can take various forms other than the above.
- the number of the side panels 5 is not limited to six, but may be about 3 to 12, preferably about 6 to 8.
- a multiple-sided side panel in which a plurality of single-shaped side panels 5 are connected may be used instead of the single-shaped side panel 5.
- a multiple-sided side panel in which a plurality of single-shaped side panels 5 are connected may be used instead of the single-shaped side panel 5.
- the driver's seat airbag has been described, but it may be applied to a passenger's seat airbag.
Abstract
An airbag 1 is provided with a first chamber C1 and a second chamber C2 surrounding the periphery of a vehicle-occupant side of the first chamber C1. This airbag 1 has a front panel 4 on the vehicle-occupant side, a rear panel 2 on the reverse side from the vehicle-occupant side, and a plurality of side panels 5 which forms a side peripheral part of the airbag 1 and is interposed between the front panel 4 and the rear panel 2. One end part of the side panel 5 on the reverse side from the vehicle-occupant side is connected to a peripheral edge part of the rear panel 2, and the other end part of the side panel 5 is connected to an intermediate part 5d between the one end part and the other end part of the side panel 5. A middle portion between the other end part 5b and the intermediate part 5d of the side panel 5 is connected to the peripheral edge part of the front panel 4. The second chamber C2 is surrounded by a portion of the side panel 5 between the other end part 5b and the intermediate part 5d.
Description
本発明は、自動車の衝突時等に乗員を拘束するためのエアバッグ及びエアバッグ装置に関する。
The present invention relates to an airbag and an airbag device for restraining an occupant at the time of a car collision or the like.
エアバッグ装置は、リテーナと、該リテーナに取り付けられて折り畳まれたエアバッグと、該エアバッグを覆うモジュールカバーと称されるカバー部材とを有する。
The airbag device has a retainer, an airbag attached to the retainer and folded, and a cover member called a module cover that covers the airbag.
車両の衝突がセンサによって検知されると、インフレータが作動し、インフレータから発生したガスによってエアバッグが膨張展開する。
When the collision of the vehicle is detected by the sensor, the inflator is activated and the airbag is inflated and deployed by the gas generated from the inflator.
特許文献１には、初期膨張時の乗員側への突出を抑制し、かつ斜め方向に移動する乗員を拘束することができる運転席用エアバッグが記載されている。特許文献１では、テザーによって運転席用エアバッグの乗員側とインフレータ用開口部とを連結している。
Patent Document 1 describes an airbag for a driver's seat that can suppress protrusion to the occupant side during initial inflation and can restrain an occupant moving in an oblique direction. In patent document 1, the passenger | crew side of the driver's seat airbag and the inflator opening are connected by a tether.
本発明は、膨張厚みが大きく、斜め衝突又は微小オーバーラップ衝突したときに乗員を拘束するのに好適なエアバッグ及びエアバッグ装置を提供することを目的とする。
An object of the present invention is to provide an airbag and an airbag apparatus that have a large expansion thickness and are suitable for restraining an occupant when an oblique collision or a micro-overlap collision occurs.
本発明のエアバッグは、第１チャンバと、該第１チャンバの乗員側の周囲を周回する第２チャンバとを備えるエアバッグであって、乗員側のフロントパネルと、反乗員側のリアパネルと、前記フロントパネルと前記リアパネルとの間に介在し、前記エアバッグの側周部を形成する複数枚のサイドパネルと、を有し、隣接する前記サイドパネルの側辺同士が結合されており、前記サイドパネルの反乗員側の一端部は前記リアパネルの周縁部に結合されており、前記サイドパネルの他端部は、該サイドパネルの前記一端部と他端部との間の中間部に結合されており、前記サイドパネルの前記他端部と前記中間部との間の途中部分が前記フロントパネルの周縁部に結合されており、前記第２チャンバは、前記サイドパネルの前記他端部と前記中間部との間の部分により囲まれているものである。
The airbag of the present invention is an airbag including a first chamber and a second chamber that circulates around the passenger side of the first chamber, and includes a front panel on the passenger side, a rear panel on the opposite side of the passenger, A plurality of side panels interposed between the front panel and the rear panel and forming a side peripheral portion of the airbag; and the side sides of the adjacent side panels are joined together, One end of the side panel on the side opposite to the occupant is coupled to the peripheral edge of the rear panel, and the other end of the side panel is coupled to an intermediate portion between the one end and the other end of the side panel. An intermediate portion between the other end portion of the side panel and the intermediate portion is coupled to a peripheral edge portion of the front panel, and the second chamber is connected to the other end portion of the side panel and the Middle Those enclosed by a portion between.
本発明の一態様では、前記サイドパネルの他端側は一部が張り出した張出部となっており、該張出部が前記中間部に結合されている。
In one aspect of the present invention, the other end of the side panel is an overhanging portion that partially overhangs, and the overhanging portion is coupled to the intermediate portion.
本発明の一態様では、前記サイドパネルの他端側の前記中間部に結合されていない部分が、前記第１チャンバと前記第２チャンバとを連通する連通口となる。
In one aspect of the present invention, a portion that is not coupled to the intermediate portion on the other end side of the side panel serves as a communication port that communicates the first chamber and the second chamber.
本発明の一態様では、膨張したエアバッグの乗員対向面にあっては、前記フロントパネルと前記サイドパネルとの間に凹陥部が存在する。
In one aspect of the present invention, a recessed portion exists between the front panel and the side panel on the occupant-facing surface of the inflated airbag.
本発明の一態様では、前記サイドパネルは３～１２枚配列されている。
In one aspect of the present invention, 3 to 12 side panels are arranged.
本発明の一態様では、前記サイドパネルは単独形状のサイドパネルを複数枚連ねた多連形状のものである。
In one aspect of the present invention, the side panel has a multi-line shape in which a plurality of single-shaped side panels are connected.
本発明の一態様のエアバッグは、前記フロントパネルと前記リアパネルとを結合するインナーテザーをさらに備える。
The airbag according to one aspect of the present invention further includes an inner tether that couples the front panel and the rear panel.
本発明のエアバッグ装置は、本発明のエアバッグと、該エアバッグを膨張させるインフレータとを備える。
The airbag device of the present invention includes the airbag of the present invention and an inflator that inflates the airbag.
本発明のエアバッグは、膨張厚みが大きく、斜め衝突又は微小オーバーラップ衝突したときに乗員を拘束するのに好適である。
The airbag of the present invention has a large inflated thickness and is suitable for restraining an occupant when an oblique collision or a minute overlap collision occurs.
以下、図１～図４を参照して実施の形態に係るエアバッグについて説明する。
Hereinafter, the airbag according to the embodiment will be described with reference to FIGS.
このエアバッグ１は、運転席乗員の前方で膨張展開する運転席用エアバッグであり、ステアリングホイールのハブ部に設置される。
This airbag 1 is an airbag for a driver's seat that is inflated and deployed in front of the driver's seat occupant, and is installed in the hub portion of the steering wheel.
このエアバッグ１は、膨張展開した状態において、エアバッグ１のハブ部側（反乗員側）のリア面を構成するリアパネル２と、乗員側のフロント面を構成するフロントパネル４と、エアバッグ１の側周を構成するサイドパネル５とを備える。リアパネル２とフロントパネル４とは、サイドパネル５を介して結合されて袋状とされている。リアパネル２とフロントパネル４とがインナーテザー１４により連結されている。
In the inflated and deployed state, the airbag 1 includes a rear panel 2 that constitutes a rear surface on the hub portion side (opposite side) of the airbag 1, a front panel 4 that constitutes a front surface on the passenger side, and the airbag 1. The side panel 5 which comprises the side periphery of this is provided. The rear panel 2 and the front panel 4 are joined together via a side panel 5 to form a bag shape. The rear panel 2 and the front panel 4 are connected by an inner tether 14.
リアパネル２及びフロントパネル４は円形（略円形）の織布よりなる。フロントパネル４は、リアパネル２よりもやや小径である。リアパネル２は直径がステアリングホイールと同程度である。例えば、リアパネル２の径は５００～７００ｍｍ程度であり、フロントパネル４の径は４００～６００ｍｍ程度である。
The rear panel 2 and the front panel 4 are made of a circular (substantially circular) woven fabric. The front panel 4 has a slightly smaller diameter than the rear panel 2. The rear panel 2 has the same diameter as the steering wheel. For example, the diameter of the rear panel 2 is about 500 to 700 mm, and the diameter of the front panel 4 is about 400 to 600 mm.
リアパネル２には、インフレータが挿入されるインフレータ用開口２ａが設けられている。このインフレータ用開口２ａの周囲には、リアパネル２をインフレータと共にリテーナに固定するためのボルトが挿通されるボルト挿通孔２ｂが設けられている。
The rear panel 2 is provided with an inflator opening 2a into which the inflator is inserted. A bolt insertion hole 2b through which a bolt for fixing the rear panel 2 to the retainer together with the inflator is inserted is provided around the inflator opening 2a.
リアパネル２には、エアバッグ１の内部と外部とを連通する２個の円形のベントホール２ｃが設けられている。ベントホール２ｃの形状、個数、位置は適宜変更可能である。
The rear panel 2 is provided with two circular vent holes 2c that allow the inside and the outside of the airbag 1 to communicate with each other. The shape, number, and position of the vent hole 2c can be changed as appropriate.
サイドパネル５は、複数枚（この実施の形態では６枚）配置されている。各サイドパネル５は、一対の短辺部５ｂ、５ｃと、一対の長辺部（以下、側辺部という）５ｓ、５ｓとを有し、長手方向の中央部分が幅の狭い狭幅部となっている。
A plurality of side panels 5 (six in this embodiment) are arranged. Each side panel 5 has a pair of short sides 5b, 5c and a pair of long sides (hereinafter referred to as side portions) 5s, 5s, and a narrow portion with a narrow central portion in the longitudinal direction. It has become.
サイドパネル５の一端側（反乗員側）の短辺部５ｃと、リアパネル２の周縁部とが、縫合糸２２（図２）で縫合される。
The short side portion 5c on one end side (opposite side) of the side panel 5 and the peripheral portion of the rear panel 2 are stitched together with a suture thread 22 (FIG. 2).
サイドパネル５の他端側の短辺部５ｂは、一部（この例では中央部）が、サイドパネル５の外側に向かって張り出した張出部５ａとなっている。サイドパネル５の他端側が折り返され、張出部５ａが、サイドパネル５の短辺部５ｂ、５ｃの間の中間部５ｄに縫合糸２４（図２、図４）で縫合される。サイドパネル５の折り返し部分は、エアバッグ膨張時に乗員側に位置するサイドパネルトップ部５ｔを形成する。
The short side portion 5b on the other end side of the side panel 5 is a protruding portion 5a that partially protrudes toward the outside of the side panel 5 (in this example, the central portion). The other end side of the side panel 5 is folded back, and the overhanging portion 5a is sewn to the intermediate portion 5d between the short side portions 5b and 5c of the side panel 5 with the suture thread 24 (FIGS. 2 and 4). The folded portion of the side panel 5 forms a side panel top portion 5t located on the passenger side when the airbag is inflated.
隣接する各サイドパネル５の側辺部５ｓ同士は縫合糸２３（図２）によって縫合されている。
The side portions 5s of the adjacent side panels 5 are sewn together by a suture thread 23 (FIG. 2).
サイドパネル５の短辺部５ｂと中間部５ｄとの間の途中部分（短辺部５ｂとサイドパネルトップ部５ｔとの間の部分）と、フロントパネル４の周縁部とが、縫合糸２１（図２）によって縫合されている。
The middle portion between the short side portion 5b and the intermediate portion 5d of the side panel 5 (the portion between the short side portion 5b and the side panel top portion 5t) and the peripheral portion of the front panel 4 are sutures 21 ( 2).
インナーテザー１４は、中心部１４ａと、中心部１４ａから放射４方向に延在する脚部１４ｂを有する十字形状である。中心部１４ａがフロントパネル４の中央部に縫合糸２５（図２）で縫合される。脚部１４ｂの端部１４ｃにはインフレータ用開口１４ｄ及びボルト挿通孔１４ｅが設けられている。リアパネル２及びインフレータをリテーナに固定するためのボルトがボルト挿通孔１４ｅに挿通される。本実施形態では、十字形状のインナーテザー１４を用いているが、形状はこれに限定されない。
The inner tether 14 has a cross shape having a central portion 14a and leg portions 14b extending from the central portion 14a in the four radial directions. The central portion 14a is stitched to the central portion of the front panel 4 with a suture thread 25 (FIG. 2). An end 14c of the leg 14b is provided with an inflator opening 14d and a bolt insertion hole 14e. Bolts for fixing the rear panel 2 and the inflator to the retainer are inserted into the bolt insertion holes 14e. In the present embodiment, the cross-shaped inner tether 14 is used, but the shape is not limited to this.
図２の通り、膨張したエアバッグ１内は、第１チャンバＣ１及び第２チャンバＣ２とからなる。第１チャンバＣ１は、リアパネル２、フロントパネル４及びサイドパネル５の中間部５ｄと短辺部５ｃとの間の部分で囲まれている。第２チャンバＣ２は、サイドパネル５の短辺部５ｂと中間部５ｄとの間の部分により囲まれている。
As shown in FIG. 2, the inflated airbag 1 includes a first chamber C1 and a second chamber C2. The first chamber C1 is surrounded by a portion between the rear panel 2, the front panel 4, and the intermediate part 5d of the side panel 5 and the short side part 5c. The second chamber C2 is surrounded by a portion between the short side portion 5b and the intermediate portion 5d of the side panel 5.
サイドパネル５の短辺部５ｂのうち、張出部５ａ以外の部分はサイドパネル５の中間部５ｄに結合されておらず、この部分が、第１チャンバＣ１と第２チャンバＣ２とを連通する連通口Ａ（図２）となる。
Of the short side portion 5b of the side panel 5, the portion other than the protruding portion 5a is not coupled to the intermediate portion 5d of the side panel 5, and this portion communicates the first chamber C1 and the second chamber C2. It becomes the communication port A (FIG. 2).
第２チャンバＣ２は第１チャンバＣ１の乗員側の周囲を周回している。
The second chamber C2 circulates around the passenger side of the first chamber C1.
このエアバッグ１は、インフレータ用開口２ａに沿ってエアバッグ１内に配置された取付用リング（図示略）によって、運転席用エアバッグ装置のリテーナ（図示略）に取り付けられる。この取付用リングには複数のスタッドボルトが設けられており、このスタッドボルトがボルト挿通孔２ｂ、１４ｅと、インフレータのフランジ部のボルト挿通孔と、リテーナのボルト挿通孔とに差し通され、ナット締めされることにより、運転席用エアバッグ１及びインフレータがリテーナに固定される。
The airbag 1 is attached to a retainer (not shown) of the driver's seat airbag device by an attachment ring (not shown) disposed in the airbag 1 along the inflator opening 2a. The mounting ring is provided with a plurality of stud bolts, which are inserted into the bolt insertion holes 2b and 14e, the bolt insertion hole of the flange portion of the inflator, and the bolt insertion hole of the retainer, and the nut. By tightening, the driver's seat airbag 1 and the inflator are fixed to the retainer.
運転席用エアバッグ１は折り畳まれ、運転席用エアバッグ装置モジュールカバーで覆われる。
The driver seat airbag 1 is folded and covered with a driver seat airbag device module cover.
このように構成されたエアバッグ装置においては、車両衝突時等に、インフレータが作動してエアバッグ１内にガスが噴出する。エアバッグ１は、このガスにより膨張してモジュールカバーを押し開き、ステアリングホイールと乗員との間に膨張展開して運転席乗員を拘束する。
In the airbag apparatus configured as described above, the inflator is activated and gas is ejected into the airbag 1 when the vehicle collides. The airbag 1 is inflated by this gas to push open the module cover, and is inflated and deployed between the steering wheel and the passenger to restrain the driver's seat passenger.
このエアバッグ１にあっては、インフレータからのガスは第１チャンバＣ１内に供給され、まず第１チャンバＣ１を膨張させる。また、このガスは連通口Ａを介して第２チャンバＣ２に流入して第２チャンバＣ２を膨張させる。
In the airbag 1, the gas from the inflator is supplied into the first chamber C1, and the first chamber C1 is first inflated. Further, this gas flows into the second chamber C2 through the communication port A and expands the second chamber C2.
膨張したエアバッグ１の乗員対向面にあっては、フロントパネル４及びサイドパネルトップ部５ｔは乗員方向に膨出し、両者の間に凹陥部Ｒが形成される。この凹陥部Ｒは、トップパネル４の周囲を周回している。
On the occupant-facing surface of the inflated airbag 1, the front panel 4 and the side panel top portion 5t bulge in the occupant direction, and a recess R is formed between the two. The recessed portion R circulates around the top panel 4.
膨張したエアバッグ１は膨張厚みが大きく、また、トップパネル４のサイドパネルトップ部５ｔとの間に凹陥部Ｒが形成されることにより、斜め衝突又は微小オーバーラップ衝突したときに乗員を拘束するのに好適なものとなる。また、基布の使用量を抑え、折り畳み時のエアバッグ１の容積・重量を軽減できる。
The inflated airbag 1 has a large inflated thickness, and a recessed portion R is formed between the top panel 4 and the side panel top portion 5t, so that the occupant is restrained when an oblique collision or a micro-overlap collision occurs. It becomes a suitable thing. Moreover, the usage amount of a base fabric can be suppressed and the volume and weight of the airbag 1 at the time of folding can be reduced.
上記実施の形態は本発明の一例であり、本発明は上記以外の種々の形態をとることができる。例えば、サイドパネル５の数は６枚に限定されず、３～１２枚程度であればよく、６～８枚程度が好ましい。
The above embodiment is an example of the present invention, and the present invention can take various forms other than the above. For example, the number of the side panels 5 is not limited to six, but may be about 3 to 12, preferably about 6 to 8.
本発明では、単独形状のサイドパネル５の代りに、単独形状のサイドパネル５を複数枚連ねた形状の多連形サイドパネルを用いてもよい。多連形サイドパネルを用いると、サイドパネル同士の縫合の手間を少なくすることができる。
In the present invention, instead of the single-shaped side panel 5, a multiple-sided side panel in which a plurality of single-shaped side panels 5 are connected may be used. When multiple side panels are used, it is possible to reduce the time and labor of stitching the side panels together.
上記実施形態では、運転席用エアバッグについて説明したが、助手席用エアバッグ等に適用してもよい。
In the above embodiment, the driver's seat airbag has been described, but it may be applied to a passenger's seat airbag.
本発明を特定の態様を用いて詳細に説明したが、本発明の意図と範囲を離れることなく様々な変更が可能であることは当業者に明らかである。
本出願は、２０１８年４月３日付で出願された日本特許出願２０１８－０７１６７４に基づいており、その全体が引用により援用される。 Although the present invention has been described in detail using specific embodiments, it will be apparent to those skilled in the art that various modifications can be made without departing from the spirit and scope of the invention.
This application is based on Japanese Patent Application No. 2018-071674 filed on Apr. 3, 2018, which is incorporated by reference in its entirety.
本出願は、２０１８年４月３日付で出願された日本特許出願２０１８－０７１６７４に基づいており、その全体が引用により援用される。 Although the present invention has been described in detail using specific embodiments, it will be apparent to those skilled in the art that various modifications can be made without departing from the spirit and scope of the invention.
This application is based on Japanese Patent Application No. 2018-071674 filed on Apr. 3, 2018, which is incorporated by reference in its entirety.
１ エアバッグ
２ リアパネル
４ フロントパネル
５ サイドパネル
１４ インナーテザー
Ｃ１ 第１チャンバ
Ｃ２ 第２チャンバ DESCRIPTION OFSYMBOLS 1 Air bag 2 Rear panel 4 Front panel 5 Side panel 14 Inner tether C1 1st chamber C2 2nd chamber
２ リアパネル
４ フロントパネル
５ サイドパネル
１４ インナーテザー
Ｃ１ 第１チャンバ
Ｃ２ 第２チャンバ DESCRIPTION OF
Claims (9)
- 第１チャンバと、該第１チャンバの乗員側の周囲を周回する第２チャンバとを備えるエアバッグであって、
乗員側のフロントパネルと、
反乗員側のリアパネルと、
前記フロントパネルと前記リアパネルとの間に介在し、前記エアバッグの側周部を形成する複数枚のサイドパネルと、
を有し、
隣接する前記サイドパネルの側辺同士が結合されており、
前記サイドパネルの反乗員側の一端部は前記リアパネルの周縁部に結合されており、
前記サイドパネルの他端部は、該サイドパネルの前記一端部と他端部との間の中間部に結合されており、
前記サイドパネルの前記他端部と前記中間部との間の途中部分が前記フロントパネルの周縁部に結合されており、
前記第２チャンバは、前記サイドパネルの前記他端部と前記中間部との間の部分により囲まれていることを特徴とするエアバッグ。 An airbag comprising a first chamber and a second chamber that circulates around the passenger side of the first chamber,
The front panel on the passenger side,
The rear panel on the non-occupant side,
A plurality of side panels interposed between the front panel and the rear panel to form a side periphery of the airbag;
Have
Sides of the side panels adjacent to each other are joined,
One end of the side panel on the side opposite to the occupant is coupled to a peripheral edge of the rear panel,
The other end portion of the side panel is coupled to an intermediate portion between the one end portion and the other end portion of the side panel,
A middle portion between the other end portion of the side panel and the intermediate portion is coupled to a peripheral edge portion of the front panel,
The airbag is characterized in that the second chamber is surrounded by a portion between the other end portion of the side panel and the intermediate portion. - 請求項１に記載のエアバッグにおいて、前記サイドパネルの他端側は一部が張り出した張出部となっており、該張出部が前記中間部に結合されていることを特徴とするエアバッグ。 2. The airbag according to claim 1, wherein the other end of the side panel is a protruding portion that partially protrudes, and the protruding portion is coupled to the intermediate portion. bag.
- 請求項２に記載のエアバッグにおいて、前記サイドパネルの他端側の前記中間部に結合されていない部分が、前記第１チャンバと前記第２チャンバとを連通する連通口となることを特徴とするエアバッグ。 The airbag according to claim 2, wherein a portion of the side panel that is not coupled to the intermediate portion on the other end side serves as a communication port that communicates the first chamber and the second chamber. Airbag to do.
- 請求項１から３のいずれか１項に記載のエアバッグにおいて、膨張したエアバッグの乗員対向面にあっては、前記フロントパネルと前記サイドパネルとの間に凹陥部が存在することを特徴とするエアバッグ。 The airbag according to any one of claims 1 to 3, wherein a recessed portion exists between the front panel and the side panel on an occupant-facing surface of the inflated airbag. Airbag to do.
- 請求項１から４のいずれか１項に記載のエアバッグにおいて、前記サイドパネルは３～１２枚配列されていることを特徴とするエアバッグ。 5. The airbag according to claim 1, wherein 3 to 12 side panels are arranged.
- 請求項１から５のいずれか１項に記載のエアバッグにおいて、前記サイドパネルは単独形状のサイドパネルを複数枚連ねた多連形状のものであることを特徴とするエアバッグ。 6. The airbag according to any one of claims 1 to 5, wherein the side panel is a multi-layered one in which a plurality of single-shaped side panels are connected.
- 請求項１から６のいずれか１項に記載のエアバッグにおいて、前記フロントパネルと前記リアパネルとを結合するインナーテザーをさらに備えることを特徴とするエアバッグ。 The airbag according to any one of claims 1 to 6, further comprising an inner tether for coupling the front panel and the rear panel.
- 請求項１から７のいずれか１項に記載のエアバッグにおいて、前記第１チャンバは、前記リアパネル、フロントパネル及びサイドパネルの中間部と前記他端部との間の部分で囲まれていることを特徴とするエアバッグ。 The airbag according to any one of claims 1 to 7, wherein the first chamber is surrounded by a portion between the rear panel, the front panel, and an intermediate portion of the side panel and the other end portion. Air bag characterized by.
- 請求項１から８のいずれか１項に記載のエアバッグと、
前記エアバッグにガスを供給するインフレータと、
を備えるエアバッグ装置。 The airbag according to any one of claims 1 to 8,
An inflator for supplying gas to the airbag;
An airbag device comprising:
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018071674A JP7006463B2 (en) | 2018-04-03 | 2018-04-03 | Airbags and airbag devices |
| JP2018-071674 | 2018-04-03 |
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| Publication Number | Publication Date |
|---|---|
| WO2019193890A1 true WO2019193890A1 (en) | 2019-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2019/008305 WO2019193890A1 (en) | 2018-04-03 | 2019-03-04 | Airbag and airbag device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7006463B2 (en) |
| WO (1) | WO2019193890A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009040220A (en) * | 2007-08-09 | 2009-02-26 | Takata Corp | Airbag device |
| JP2018020737A (en) * | 2016-08-05 | 2018-02-08 | タカタ株式会社 | Airbag for driver seat, airbag device for driver seat and steering wheel |
| JP2018047845A (en) * | 2016-09-23 | 2018-03-29 | タカタ株式会社 | Air bag for driver seat, air bag device for driver seat, steering wheel and sub-chamber |
-
2018
- 2018-04-03 JP JP2018071674A patent/JP7006463B2/en active Active
-
2019
- 2019-03-04 WO PCT/JP2019/008305 patent/WO2019193890A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009040220A (en) * | 2007-08-09 | 2009-02-26 | Takata Corp | Airbag device |
| JP2018020737A (en) * | 2016-08-05 | 2018-02-08 | タカタ株式会社 | Airbag for driver seat, airbag device for driver seat and steering wheel |
| JP2018047845A (en) * | 2016-09-23 | 2018-03-29 | タカタ株式会社 | Air bag for driver seat, air bag device for driver seat, steering wheel and sub-chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7006463B2 (en) | 2022-01-24 |
| JP2019182019A (en) | 2019-10-24 |
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