JP2009078717A

JP2009078717A - Airbag device

Info

Publication number: JP2009078717A
Application number: JP2007249832A
Authority: JP
Inventors: Nobuyuki Hidaka; 信幸日高; Takeshi Fukuda; 猛福田; Tadashi Inazu; 正稲津; Takashi Honda; 貴本多; Kenichi Kamio; 建一神尾; Tatsuhiko Nakamura; 達彦中村
Original assignee: Honda Motor Co Ltd; Nihon Plast Co Ltd
Current assignee: Honda Motor Co Ltd; Nihon Plast Co Ltd
Priority date: 2007-09-26
Filing date: 2007-09-26
Publication date: 2009-04-16

Abstract

<P>PROBLEM TO BE SOLVED: To provide an airbag device capable of covering a window at the side of a vehicle interior of an automobile, moving a cover body smoothly when deploying an airbag, and simplifying structure to reduce weight. <P>SOLUTION: This airbag device 1 arranged at the roof side 5 of the vehicle is provided with the airbag 2, a resin-made garnish 18, resin-made connection parts 27, a protector 28, a bracket 26 fixed on a vehicle body, and a reinforcing plate 29 connecting a plurality of the connection parts 27 to one another. The connection parts 27 are attached to the bracket 26 and support the garnish 18. Tips of a regulation part 35 constituted by extending a mounting piece 32 of the airbag 2 and the connection parts 27 are connected to each other while they are loosened. When the airbag 2 is deployed, the garnish 18 is elastically deformed and the tips of the connection parts 27 are deformed to be opened. When the regulation part 35 is stretched, it functions as a stopper to prevent the garnish 18 from moving. Since the connection parts 27 can be formed of resin, the weight of the airbag device can be reduced. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、例えば、車両の車室の側部の窓部に沿ってエアバッグを展開するエアバッグ装置に関する。 The present invention relates to an airbag device that deploys an airbag along, for example, a window on a side portion of a vehicle cabin.

従来、ガスを導入して膨張展開するエアバッグを備えたエアバッグ装置について、自動車の車室の側部のドアの窓部などに沿って展開するいわゆるカーテンエアバッグ装置が知られている。このようなエアバッグ装置のエアバッグは、通常時は、細長く折り畳まれ、車室側面の窓部の上縁部に沿って配置されている。そして、側面衝突や横転などの衝撃を受けた際に、インフレータからガスが供給されてエアバッグが展開し、側部の窓部などに沿って下方に展開するようになっている。 2. Description of the Related Art Conventionally, a so-called curtain airbag device that deploys along a window portion of a door on a side portion of an automobile compartment is known as an airbag device including an airbag that is inflated and deployed by introducing gas. The airbag of such an airbag device is normally folded in an elongated shape and is disposed along the upper edge of the window on the side of the passenger compartment. When an impact such as a side collision or rollover is received, gas is supplied from the inflator and the airbag is deployed, and the airbag is deployed downward along the side windows and the like.

このようなエアバッグ装置について、折り畳んだエアバッグを、自動車の内装材を兼ねたカバー体で覆った構成が知られている(例えば、特許文献１参照。)。このカバー体は、合成樹脂にて形成され、エアバッグの展開時に弾性的に変形して、エアバッグの展開を可能としている。 About such an airbag apparatus, the structure which covered the folded airbag with the cover body which served as the interior material of a motor vehicle is known (for example, refer patent document 1). The cover body is formed of a synthetic resin, and is elastically deformed when the airbag is deployed to enable the airbag to be deployed.

しかしながら、内装材であるプラスチック製のピラーガーニッシュを弾性的に変形させる構成では、例えば、極めて高温あるいは低温の環境下では、合成樹脂の特性が変化し易く、通常時に外観良く折り畳んだエアバッグを覆うとともに、エアバッグの展開時には円滑に移動する適切な剛性の設定が必ずしも容易ではない問題を有している。 However, in the configuration in which the plastic pillar garnish that is the interior material is elastically deformed, for example, under extremely high or low temperature environments, the characteristics of the synthetic resin are likely to change, and the airbag that has been folded with good appearance is covered normally. At the same time, there is a problem that it is not always easy to set an appropriate rigidity to move smoothly when the airbag is deployed.

この点、カバー体をヒンジで支持する構成が考えられるが、剛性の大きいヒンジを用いると、エアバッグの展開初期の大きな衝撃を受けた際にカバー体を保護することが必ずしも容易でないとともに質量が増加しやすく、また、剛性の小さいヒンジを用いると、カバー体が開きすぎることを抑制しにくい問題を有している。
特開２００３−３４１４５９号公報（第３−４頁、図１−２） In this regard, a configuration in which the cover body is supported by a hinge is conceivable. However, if a hinge having high rigidity is used, it is not always easy to protect the cover body when subjected to a large impact at the initial stage of deployment of the airbag, and the mass is not sufficient. If a hinge with a small rigidity is used, it is difficult to prevent the cover body from opening too much.
JP 2003-341459 A (page 3-4, FIG. 1-2)

上記のように、細長く折り畳まれた長尺なエアバッグのエアバッグを保護するカバー体について、通常時は外観良く折り畳んだエアバッグを覆うとともに、エアバッグの展開時に円滑に展開できる構成が求められている。 As described above, the cover body that protects the airbag of a long and narrow airbag is required to have a configuration that normally covers the airbag folded with a good appearance and that can be smoothly deployed when the airbag is deployed. ing.

本発明は、このような点に鑑みなされたもので、エアバッグを保護するカバー体を備え、カバー体が通常時は外観良く折り畳んだエアバッグを覆うとともに、エアバッグの展開時にはカバー体を円滑に開くことができる好ましい特性を容易に実現できるエアバッグ装置を提供することを目的とする。 The present invention has been made in view of the above points, and includes a cover body that protects an airbag. The cover body normally covers an airbag that has been folded with a good appearance, and the cover body is smooth when the airbag is deployed. It is an object of the present invention to provide an airbag device that can easily realize desirable characteristics that can be opened easily.

請求項１記載のエアバッグ装置は、細長く折り畳まれた状態からガスが導入されて膨張展開するエアバッグ本体部及びこのエアバッグ本体部から延設された取付片部を設けたエアバッグと、折り畳まれた状態の前記エアバッグを長手方向に沿って覆う本体部及びこの本体部に連続する取付部を備えたカバー体と、被取付部材側に取り付けられる第１の取付部、前記カバー体の取付部側に取り付けられる第２の取付部、及びこれら第１の取付部の基端部側と第２の取付部の基端部側とを連結し前記エアバッグの膨張展開時に変形可能なヒンジ部とを備えるとともに、これら第１の取付部の先端部側と第２の取付部の先端部側とが前記取付片部により互いに連結されたヒンジとを具備するものである。 The airbag device according to claim 1 is folded with an airbag provided with an airbag main body portion that is inflated and deployed by introducing gas from an elongated folded state, and an attachment piece portion extending from the airbag main body portion. A cover body provided with a main body part covering the airbag in a state of being stretched along the longitudinal direction and an attachment part continuous to the main body part, a first attachment part attached to the attached member side, and attachment of the cover body A second attachment portion attached to the side portion, and a hinge portion that connects the proximal end portion side of the first attachment portion and the proximal end portion side of the second attachment portion and is deformable when the airbag is inflated and deployed And a hinge in which the tip end side of the first attachment portion and the tip end side of the second attachment portion are connected to each other by the attachment piece portion.

そして、この構成では、エアバッグの展開時に、エアバッグがカバー体を押動すると、ヒンジが変形してカバー体の移動を許容し、エアバッグが円滑に展開する。ヒンジが変形してカバー体の移動を許容することにより、エアバッグの展開初期の大きな衝撃を吸収するため、カバー体が保護される。エアバッグの取付片部によりヒンジの先端部同士を連結したため、ヒンジの変形量を抑制でき、カバー体の移動量が抑制される。そこで、ヒンジの剛性を必要以上に高める必要がなく、軽量化や製造コストの低減が容易になる。また、エアバッグの取付片部を用いることにより、部品点数を増加することなく、構成が簡略化され、製造コストが低減される。 In this configuration, when the airbag is deployed, if the airbag pushes the cover body, the hinge is deformed to allow the cover body to move, and the airbag is smoothly deployed. Since the hinge is deformed to allow the cover body to move, the cover body is protected in order to absorb a large impact at the initial stage of deployment of the airbag. Since the tips of the hinges are connected to each other by the attachment piece of the airbag, the amount of deformation of the hinge can be suppressed, and the amount of movement of the cover body is suppressed. Therefore, it is not necessary to increase the rigidity of the hinge more than necessary, and it is easy to reduce the weight and reduce the manufacturing cost. Moreover, by using the attachment piece part of an airbag, a structure is simplified and manufacturing cost is reduced without increasing the number of parts.

請求項２記載のエアバッグ装置は、請求項１記載のエアバッグ装置において、エアバッグは、ガスが導入されて所定方向に向かい所定面に沿って膨張展開し、ヒンジ部は、前記所定方向に向かって伸びる方向に変形可能な屈曲部を備えたものである。 The airbag device according to claim 2 is the airbag device according to claim 1, wherein the airbag is inflated and deployed along a predetermined surface in a predetermined direction when gas is introduced, and the hinge portion is in the predetermined direction. It is provided with a bent portion that can be deformed in a direction extending toward the front.

そして、この構成では、エアバッグの展開時に、カバー体を展開方向に向かって押す力をヒンジ部の屈曲部の変形で吸収し、カバー体の円滑な移動が可能になる。 In this configuration, when the airbag is deployed, the force that pushes the cover body toward the deployment direction is absorbed by the deformation of the bent portion of the hinge portion, and the cover body can be moved smoothly.

請求項３記載のエアバッグ装置は、請求項１または２記載のエアバッグ装置において、被取付部材に取り付けられるとともに、ヒンジの第１の取付部が取り付けられるブラケットと、折り畳まれた状態のエアバッグの長手方向に沿って配置される案内部を備えたプロテクタとを具備したものである。 The airbag device according to claim 3 is the airbag device according to claim 1 or 2, wherein the airbag device is attached to a member to be attached and a bracket to which the first attachment portion of the hinge is attached, and the airbag in a folded state. And a protector provided with a guide portion arranged along the longitudinal direction.

そして、この構成では、プロテクタの案内部により、収納時及び展開時にエアバッグが保護される。ブラケットに、他の部材を組み付けることにより、エアバッグ装置がモジュール化され、エアバッグ装置の取り扱いが容易になる。 And in this structure, an airbag is protected at the time of accommodation and expansion | deployment by the guide part of a protector. By assembling other members to the bracket, the airbag device is modularized, and the airbag device can be easily handled.

請求項４記載のエアバッグ装置は、請求項１ないし３いずれか一記載のエアバッグ装置において、カバー体は、車両の内装材であり、ヒンジの第１の取付部側は、車両の車室の側部に位置して車体に固定され、エアバッグは、所定面を構成する前記車室の側部に沿って展開するものである。 The airbag device according to claim 4 is the airbag device according to any one of claims 1 to 3, wherein the cover body is an interior material of the vehicle, and the first mounting portion side of the hinge is a vehicle compartment of the vehicle. The airbag is fixed to the vehicle body, and the airbag is deployed along the side portion of the vehicle compartment constituting a predetermined surface.

そして、この構成では、細長く折り畳まれるエアバッグを備えるとともに、このエアバッグを覆うカバー体が車両の内装材となる、車室の側部用のエアバッグ装置に適した構成が提供される。 And in this structure, while providing the airbag folded long and narrow, the structure suitable for the airbag apparatus for the side part of a vehicle interior from which the cover body which covers this airbag becomes an interior material of a vehicle is provided.

本発明のエアバッグ装置によれば、エアバッグの展開時に、エアバッグがカバー体を押動すると、ヒンジが変形してカバー体の移動を許容し、エアバッグを円滑に展開できる。ヒンジが変形してカバー体の移動を許容することにより、エアバッグの展開初期の大きな衝撃を吸収するため、カバー体を保護できる。エアバッグの取付片部によりヒンジの先端部同士を連結したため、ヒンジの変形量を抑制でき、カバー体の移動量を抑制できる。そこで、ヒンジの剛性を必要以上に高める必要がなく、軽量化や製造コストの低減を容易に実現できる。また、エアバッグの取付片部を用いることにより、部品点数を増加することなく、構成を簡略化し、製造コストを低減できる。 According to the airbag device of the present invention, when the airbag pushes the cover body when the airbag is deployed, the hinge is deformed to allow the cover body to move, and the airbag can be deployed smoothly. Since the hinge is deformed and the movement of the cover body is allowed, a large impact at the initial stage of deployment of the airbag is absorbed, so that the cover body can be protected. Since the tips of the hinges are connected to each other by the attachment piece of the airbag, the deformation amount of the hinge can be suppressed and the movement amount of the cover body can be suppressed. Therefore, it is not necessary to increase the rigidity of the hinge more than necessary, and it is possible to easily realize weight reduction and manufacturing cost reduction. Further, by using the mounting piece of the airbag, the configuration can be simplified and the manufacturing cost can be reduced without increasing the number of parts.

以下、本発明のエアバッグ装置の一実施の形態を図面を参照して説明する。 Hereinafter, an embodiment of an airbag device of the present invention will be described with reference to the drawings.

図１ないし図３において、１はエアバッグ装置で、このエアバッグ装置１は、カーテンエアバッグあるいは側突用エアバッグなどとも呼ばれるエアバッグ２を備え、図１(a)及び図２に示すように、通常時には、車両である自動車の車体３の車室４の収納位置としてのルーフサイド部５に配置され、側面衝突の衝撃を受けた際や横転の際などに、図１(b)に示すように、所定方向Ｆに向かい、乗員の側方の所定面Ｓに沿って面状に展開し、被保護物である乗員を保護するようになっている。なお、以下の記載において、上下方向、前後方向などの方向は、車両の直進方向を基準とし、内側及び外側は、車室４から両側の外方に向かう方向を外側として説明する。 1 to 3, reference numeral 1 denotes an airbag apparatus. The airbag apparatus 1 includes an airbag 2, which is also called a curtain airbag or a side-impact airbag, as shown in FIGS. In addition, normally, it is arranged on the roof side portion 5 as a storage position of the compartment 4 of the vehicle body 3 of the vehicle, which is a vehicle, and when it receives a side collision impact or rolls over, it is shown in FIG. As shown in the figure, it faces in a predetermined direction F and develops in a planar shape along a predetermined surface S on the side of the occupant to protect the occupant as a protected object. In the following description, the directions such as the vertical direction and the front-rear direction are described with reference to the straight traveling direction of the vehicle, and the inner side and the outer side are described as the directions outward from the passenger compartment 4 on the both sides.

そして、この自動車の車体３は、車室４内に乗員が着座可能な前席及び後席を備え、これら前席及び後席に対応して、それぞれ窓部を備えた図示しないドアが設けられている。また、車室４の両側には、前側から順に、Ａピラーとも呼ばれるフロントピラー、Ｂピラーとも呼ばれるセンターピラー、Ｃピラーとも呼ばれるリアピラーが設けられている。そして、これら窓部、ドア及び各ピラーにより、車室４の両側部に側部としての所定面が構成されている。また、これらピラーの上側、すなわち窓部の一縁部である上縁部に、ルーフサイドレールなどとも呼ばれる被取付部材を構成する被取付面部としての車体パネル15が設けられ、この車体パネル15を介して天井部としての天井パネルが支持されている。また、両側のフロントピラーの前側にはフロントガラス(フロントウインドシールド)が設けられ、両側のリアピラーの後側にはリアガラスが設けられている。そして、収納位置としてのルーフサイド部５は、天井パネルの両側の縁部の部分から、この縁部といわば交差する方向に伸びるフロントピラーの一部あるいは全長、及び、必要に応じてリアピラーの一部あるいは全長にかかる部分に設定されている。 The vehicle body 3 includes a front seat and a rear seat in which a passenger can sit in a passenger compartment 4, and doors (not shown) each having a window portion are provided corresponding to the front seat and the rear seat. ing. Further, on both sides of the passenger compartment 4, a front pillar called A pillar, a center pillar called B pillar, and a rear pillar called C pillar are provided in order from the front side. These windows, doors, and each pillar constitute a predetermined surface as a side portion on both sides of the passenger compartment 4. Further, on the upper side of these pillars, that is, on the upper edge portion which is one edge portion of the window portion, a vehicle body panel 15 is provided as a mounting surface portion constituting a mounting member also called a roof side rail. A ceiling panel as a ceiling portion is supported through the gap. A front glass (front windshield) is provided on the front side of the front pillars on both sides, and a rear glass is provided on the rear side of the rear pillars on both sides. The roof side portion 5 serving as a storage position is a part or the entire length of the front pillar extending from the edge portions on both sides of the ceiling panel in a direction intersecting with the edge portion, and if necessary, one of the rear pillars. It is set to the part which covers the part or the full length.

また、車体パネル15及び天井パネルの車室４側の一部は、各ピラーの一部とともに、軟質すなわち変形可能な天井板であり室内装飾パネルであるヘッドライニング(ルーフライニング)16により覆われている。そして、各ピラーの全長あるいは一部の車室４側には、それぞれ内装材である第１ないし第３のピラーガーニッシュが取り付けられ、これらピラーが覆われている。さらに、本実施の形態では、フロントピラーからルーフサイド部５を介してリアピラーに係る部分に、エアバッグ装置１を構成するカバー体である内装材としての樹脂製のガーニッシュ18が備えられている。 A part of the vehicle body panel 15 and the ceiling panel on the side of the passenger compartment 4 is covered with a headlining (roofing) 16 which is a soft or deformable ceiling plate and an interior decoration panel together with a part of each pillar. Yes. And the 1st thru | or 3rd pillar garnish which is an interior material is attached to the full length of each pillar or the one part compartment 4 side, respectively, and these pillars are covered. Further, in the present embodiment, a resin garnish 18 as an interior material, which is a cover body constituting the airbag device 1, is provided in a portion related to the rear pillar from the front pillar through the roof side portion 5.

すなわち、エアバッグ装置１は、カーテンエアバッグモジュールとも呼び得るもので、エアバッグ２及びガーニッシュ18に加え、エアバッグ２にガスを供給するガス発生器である図示しないインフレータ、エアバッグ装置１を車体パネル15に取り付ける単数あるいは複数のブラケット26、これらブラケット26に取り付けられる単数あるいは複数の連結部27、折り畳んだエアバッグ２の長手方向に沿って配置された案内体であるプロテクタ28、及び連結部27に連結された補強板29などを備えてモジュールが構成され、このモジュールが車体パネル15に沿ってルーフサイド部５に配置されている。 In other words, the airbag device 1 can be called a curtain airbag module. In addition to the airbag 2 and the garnish 18, the airbag device 1 is a gas generator that supplies gas to the airbag 2, and the airbag device 1 is not shown. One or a plurality of brackets 26 attached to the panel 15, one or a plurality of connecting portions 27 attached to the brackets 26, a protector 28 as a guide body arranged along the longitudinal direction of the folded airbag 2, and a connecting portion 27 A module is configured to include a reinforcing plate 29 and the like connected to each other, and this module is disposed on the roof side portion 5 along the vehicle body panel 15.

そして、エアバッグ２は、各図においては模式的に示しているが、単数あるいは複数の基布を組み合わせ、例えば１枚の基布を折り返し、あるいは２枚の基布を重ねて接合して、扁平な袋状に形成されたエアバッグ本体部31と、このエアバッグ本体部31の複数カ所から延設された取付片部32となどを備え、所定の折り畳み方法で細長く折り畳まれ、図示しない筒状あるいはひも状などの形状保持部材により形状を保持されている。そして、このエアバッグ２は、前後の座席の乗員を保護可能な、長尺ないわゆる前後席用エアバッグであり、エアバッグ本体部31には、ガスが流入して膨張展開する袋状の膨張部と、エアバッグ本体部31の後端上部あるいは長手方向の中央上部などに位置して膨張部を外部に連通するガス導入口となどが設けられている。また、エアバッグ２の取付片部32は、エアバッグ本体部31の上縁部に連続して複数形成されている。そして、各取付片部32は、取付帯あるいはバッグ帯とも呼ばれるもので、エアバッグ本体部31を構成する基布部と一体に形成され、エアバッグ本体部31から舌片状に突設されているとともに、通常よりも長く設定され、エアバッグ２を支持する機能を有する取付片部本体部34と、この取付片部本体部34の先端側からさらに延設された規制部35とを備えている。そして、規制部35は、取付片部本体部34の先端部である上端部から、内側に沿うように折り返された後、さらに略Ｕ字状に湾曲されている。そして、取付片部本体部34には、円孔状をなす取付片部本体部取付孔34aが形成されている。また、規制部35には、それぞれ円孔状をなす第１の取付孔35aと第２の取付孔35bとが形成され、さらに、規制部35の先端部近傍には、スリット状の孔である係止部35cが形成されている。また、図示しないが、エアバッグ２の前端部には、エアバッグ２とフロントピラーの前端部近傍とを連結するテザーベルトが連結されている。 And although the airbag 2 is typically shown in each drawing, a single or a plurality of base fabrics are combined, for example, one base fabric is folded, or two base fabrics are overlapped and joined, A cylinder body (not shown) that includes an airbag main body portion 31 formed in a flat bag shape, attachment piece portions 32 extended from a plurality of locations of the airbag main body portion 31 and the like, and is folded into an elongated shape by a predetermined folding method. The shape is held by a shape holding member such as a shape or a string. The airbag 2 is a long so-called front / rear seat airbag that can protect the passengers in the front and rear seats. The airbag body 31 is inflated in a bag shape in which gas flows in and expands. And a gas introduction port located at the rear end upper part of the airbag main body part 31 or at the center upper part in the longitudinal direction and communicating the inflating part to the outside. A plurality of attachment pieces 32 of the airbag 2 are continuously formed on the upper edge portion of the airbag body 31. Each attachment piece 32 is also called an attachment band or a bag band, and is formed integrally with the base fabric part constituting the airbag main body 31, and protrudes in a tongue-like shape from the airbag main body 31. And an attachment piece main body 34 that is set longer than usual and has a function of supporting the airbag 2, and a restriction portion 35 that is further extended from the distal end side of the attachment piece main body 34. Yes. The restricting portion 35 is further bent in a substantially U shape after being folded back from the upper end portion, which is the tip portion of the attachment piece main body portion 34, along the inside. The attachment piece main body 34 is provided with a circular attachment piece main body attachment hole 34a. The restricting portion 35 is formed with a first attachment hole 35a and a second attachment hole 35b each having a circular hole shape, and a slit-like hole is provided near the tip of the restricting portion 35. A locking portion 35c is formed. Although not shown, a tether belt that connects the airbag 2 and the vicinity of the front end portion of the front pillar is connected to the front end portion of the airbag 2.

また、インフレータは、後席の後方あるいは上方に位置して収納された円柱状の本体部を備え、接続管を介してエアバッグ２のガス導入口に接続されている。 The inflator includes a columnar main body that is housed in a position behind or above the rear seat, and is connected to the gas inlet of the airbag 2 through a connecting pipe.

そして、ガーニッシュ18は、ルーフサイドトリムなどとも呼び得るもので、弾性的に変形可能な合成樹脂にて一体に形成され、折り畳まれたエアバッグ２を覆うとともに車室４内に露出する本体部としてのガーニッシュ本体部41と、このガーニッシュ本体部41の上縁部に一体に連結する取付部としてのガーニッシュ側取付部42とを備えている。そして、ガーニッシュ本体部41は、外側に向かって滑らかに湾曲し、折り畳まれたエアバッグ２や車体パネル15などが車室４内に露出しないように覆っている。また、ガーニッシュ側取付部42は、ガーニッシュ本体部41から外側に向かって延設された平板状の第１の取付片部44と、第１の取付片部44の縁部から屈曲して延設された第２の取付片部45とを備え、断面略Ｌ字状に形成されている。さらに、第２の取付片部45には、所定の間隔で円孔状の取付孔48が形成されている。また、このガーニッシュ側取付部42は、ヘッドライニング16に覆われるようになっている。 The garnish 18 can also be called a roof side trim or the like. The garnish 18 is integrally formed of an elastically deformable synthetic resin, covers the folded airbag 2 and is exposed as a main body portion in the passenger compartment 4. The garnish main body portion 41 and a garnish side attachment portion 42 as an attachment portion integrally connected to the upper edge portion of the garnish main body portion 41 are provided. The garnish body 41 is smoothly curved outward and covers the folded airbag 2, vehicle body panel 15, and the like so as not to be exposed in the passenger compartment 4. Further, the garnish side mounting portion 42 is bent and extended from a flat plate-like first mounting piece portion 44 extending outward from the garnish main body portion 41 and an edge of the first mounting piece portion 44. The second mounting piece 45 is formed in a substantially L-shaped cross section. Furthermore, circular attachment holes 48 are formed in the second attachment piece 45 at a predetermined interval. The garnish side mounting portion 42 is covered with the headlining 16.

また、ブラケット26は、ベースブラケットとも呼び得るもので、車両の両側のルーフサイド部５に複数配置され、例えば、車両の片側に３個ずつ同形状のブラケット26が配置されている。そして、各ブラケット26は、金属製で、例えば鉄板をプレス加工して形成され、図３に示すように、平板状をなすブラケット本体部である取付受部51と、この取付受部51の両端部に一体に連続するブラケット側取付部52とを備えている。そして、取付受部51には、所定の間隔で、ねじ孔状などをなす複数のヒンジ取付部54と、ねじ孔状などをなすプロテクタ取付部55と、ねじ孔状などをなすエアバッグ取付部56とが形成されている。また、ブラケット側取付部52は、平板状の固定部58と、この固定部58と取付受部51とを一体に連結するブラケット側連結部59とを備えている。そして、各固定部58には、円孔状の固定孔60が形成されている。そして、各ブラケット26は、比較的剛性が大きく形成され、エアバッグ２の展開時にも変形しないように形成されている。 The brackets 26 can also be called base brackets, and a plurality of brackets 26 are arranged on the roof side portions 5 on both sides of the vehicle. For example, three brackets 26 of the same shape are arranged on one side of the vehicle. Each bracket 26 is made of metal, for example, formed by pressing an iron plate. As shown in FIG. 3, each bracket 26 has a flat plate-shaped bracket body 51 and both ends of the mounting receiver 51. And a bracket-side mounting portion 52 that is integrally continuous with the portion. The mounting receiving portion 51 includes a plurality of hinge mounting portions 54 having a screw hole shape and the like, a protector mounting portion 55 having a screw hole shape, and an air bag mounting portion having a screw hole shape at predetermined intervals. 56 and are formed. Further, the bracket side attaching portion 52 includes a flat plate-like fixing portion 58 and a bracket side connecting portion 59 that connects the fixing portion 58 and the attachment receiving portion 51 together. Each fixing portion 58 is formed with a circular fixing hole 60. Each bracket 26 is formed to have a relatively large rigidity so as not to be deformed even when the airbag 2 is deployed.

そして、連結部27は、単数あるいは複数用いられ、本実施の形態では各ブラケット26に対してそれぞれ２個の同形状の連結部27が用いられている。そして、各連結部27は、金属製で例えば塑性変形可能な板材である鉄板をプレス加工して一体に形成することもできるが、本実施の形態では、弾性的に変形可能な樹脂にてそれぞれ一体に形成されている。そして、各連結部27は、板状をなす第１の取付部63と、この第１の取付部63に対向する板状をなす第２の取付部64と、これら第１の取付部63と第２の取付部64との基端側を変形可能に連結するヒンジ部65とを備えている。そして、第１の取付部63は、ブラケット26の取付受部51の内側に重ねて配置されるもので、ヒンジ取付部54に位置合わせして、円孔状の第１の取付孔66が形成されている。また、第２の取付部64は、補強板29に重ねて接着などして固定されるもので、円孔状の作業孔67が形成されている。そして、この作業孔67を介して、第１の取付孔66に、固定具としての固定具71が挿入されるようになっている。さらに、ヒンジ部65は、全体としては滑らかに湾曲して第１の取付部63と第２の取付部64との上端部すなわち基端部同士を連結するが、本実施の形態では、さらに、中間位置で内側すなわち第１の取付部63から第２の取付部64に向かう方向に断面略Ｕ字状に膨出する屈曲部65aが形成されている。 One or a plurality of connecting portions 27 are used, and two connecting portions 27 having the same shape are used for each bracket 26 in the present embodiment. Each connecting portion 27 can be integrally formed by pressing an iron plate made of metal, for example, a plastically deformable plate material, but in the present embodiment, each of the connecting portions 27 is made of an elastically deformable resin. It is integrally formed. Each connecting portion 27 includes a plate-like first attachment portion 63, a plate-like second attachment portion 64 opposite to the first attachment portion 63, and the first attachment portion 63. A hinge portion 65 is provided for connecting the base end side with the second attachment portion 64 in a deformable manner. The first attachment portion 63 is disposed so as to overlap the inside of the attachment receiving portion 51 of the bracket 26, and is aligned with the hinge attachment portion 54 to form a circular first attachment hole 66. Has been. Further, the second attachment portion 64 is fixed to the reinforcing plate 29 by being adhered or the like, and a circular work hole 67 is formed. A fixing tool 71 as a fixing tool is inserted into the first mounting hole 66 through the work hole 67. Furthermore, the hinge portion 65 is smoothly curved as a whole and connects the upper end portions, that is, the base end portions of the first attachment portion 63 and the second attachment portion 64. In the present embodiment, A bent portion 65a that bulges in a substantially U-shaped cross section is formed at the intermediate position, that is, in the direction from the first mounting portion 63 to the second mounting portion 64.

また、補強板29は、樹脂製あるいは金属製のプレートであり、例えば細長矩形平板状に一体に形成されている。そして、この補強板29は、ガーニッシュ18のガーニッシュ側取付部42の第２の取付片部45に沿った形状で、この第２の取付片部45の外側面すなわち裏面側に沿って配置される。そして、この補強板29には、上記のように、連結部27が固定されるとともに、ガーニッシュ18の取付孔48に位置合わせして、ねじ孔状などをなす単数あるいは複数の取付孔73が形成されている。そして、この取付孔73には、ビスあるいはリベットなどの固定具74が挿入されるようになっている。また、この補強板29には、連結部27の作業孔67に位置合わせして、作業孔75が形成されている。さらに、補強板29の一縁である上縁からは、所定の取付孔73に位置合わせして、舌片状の係止突部77が形成されている。 The reinforcing plate 29 is a resin or metal plate, and is integrally formed in, for example, an elongated rectangular flat plate shape. The reinforcing plate 29 has a shape along the second attachment piece 45 of the garnish side attachment portion 42 of the garnish 18 and is arranged along the outer side surface of the second attachment piece 45, that is, the back surface side. . In the reinforcing plate 29, as described above, the connecting portion 27 is fixed, and a single or a plurality of mounting holes 73 having a screw hole shape or the like are formed in alignment with the mounting holes 48 of the garnish 18. Has been. A fixing tool 74 such as a screw or a rivet is inserted into the mounting hole 73. The reinforcing plate 29 is formed with a work hole 75 so as to be aligned with the work hole 67 of the connecting portion 27. Further, a tongue-like locking projection 77 is formed from the upper edge, which is one edge of the reinforcing plate 29, in alignment with a predetermined mounting hole 73.

さらに、プロテクタ28は、エアバッグの傷付き防止用カバーとも呼び得るもので、折り畳んだエアバッグ２の略全長あるいは一部に沿うように、合成樹脂にて一体に断面略Ｌ字状などに形成されている。すなわち、プロテクタ28は、長尺な平板状をなすプロテクタ基板部81と、このプロテクタ基板部81の外側の縁部から下方に屈曲して延設された案内部としてのプロテクタ側板部82と、このプロテクタ基板部81の外側の縁部から上側に突設された複数のプロテクタ側取付部83とが一体に形成されている。そして、プロテクタ基板部81は、折り畳まれたエアバッグ２の上側に沿う部分で、エアバッグ２の取付片部32が挿通する長手方向に沿った溝状の取付片部挿通部85が形成されている。また、プロテクタ側板部82は、折り畳まれたエアバッグ２の外側に沿う部分であり、収納されたエアバッグ２の形状に応じて湾曲あるいは屈曲などされているとともに、先端部となる下端の縁部は、外側に向かって屈曲してカバー当接受部86が形成されている。また、プロテクタ側取付部83は、プロテクタ側板部82にほぼ沿って、上側に垂直に板状に突設されているとともに、円孔状をなす取付孔89が形成されている。なお、プロテクタ基板部81とプロテクタ側板部82とが連続する角部は、プロテクタ側取付部83を形成した位置を除いて、折り畳んだエアバッグ２に沿うように滑らかな曲面状に形成されている。 Further, the protector 28 can also be called a cover for preventing damage to the airbag, and is integrally formed with a synthetic resin so as to have a substantially L-shaped cross section along the substantially entire length or part of the folded airbag 2. Has been. That is, the protector 28 includes a protector board part 81 having a long flat plate shape, a protector side plate part 82 as a guide part that is bent and extended downward from an outer edge part of the protector board part 81, and A plurality of protector side mounting portions 83 projecting upward from the outer edge of the protector substrate 81 are integrally formed. And the protector board | substrate part 81 is a part along the upper side of the folded airbag 2, and the groove-shaped attachment piece part insertion part 85 along the longitudinal direction in which the attachment piece part 32 of the airbag 2 is penetrated is formed. Yes. The protector side plate portion 82 is a portion along the outside of the folded airbag 2, and is bent or bent according to the shape of the stored airbag 2, and has a lower end edge serving as a tip portion. The cover abutment receiving portion 86 is formed by bending outward. Further, the protector side mounting portion 83 is provided so as to protrude vertically in a plate shape substantially along the protector side plate portion 82 and has a circular mounting hole 89 formed therein. In addition, the corner | angular part where the protector board | substrate part 81 and the protector side board part 82 continue is formed in the smooth curved surface shape along the folded airbag 2 except the position which formed the protector side attaching part 83. .

次に、このエアバッグ装置１の組立動作及び車両への取付動作を説明する。 Next, the assembly operation of the airbag device 1 and the attachment operation to the vehicle will be described.

まず、予め所定の形状に折り畳まれたエアバッグ２をプロテクタ28の内側かつ下側に沿わせるとともに、エアバッグ２の各取付片部32を取付片部挿通部85から上側に引き出す。そして、この取付片部32を取付片部本体部34の上端部で内側に折り返して二重とし、取付片部本体部取付孔34aと第１の取付孔35aとを位置合わせした状態で、ブラケット26の取付受部51の外側に沿わせ、取付片部本体部取付孔34a及び第１の取付孔35aに外側から挿入したビスなどの固定具91をブラケット26のエアバッグ取付部56に螺合して、エアバッグ２をブラケット26に連結する。さらに、プロテクタ28のプロテクタ側取付部83をブラケット26の取付受部51の外側に沿わせ、取付孔89に外側から挿入した図示しないビスなどの固定具をブラケット26のプロテクタ取付部55に螺合して、プロテクタ28をブラケット26に連結し固定する。 First, the airbag 2 folded in advance into a predetermined shape is placed along the inner side and the lower side of the protector 28, and each attachment piece portion 32 of the airbag 2 is pulled out from the attachment piece portion insertion portion 85 to the upper side. The mounting piece 32 is folded inward at the upper end of the mounting piece main body 34 so as to be double, and the mounting piece main body mounting hole 34a and the first mounting hole 35a are aligned with the bracket. A fixing tool 91 such as a screw inserted from the outside into the mounting piece main body mounting hole 34a and the first mounting hole 35a along the outer side of the 26 mounting receiving portion 51 is screwed into the airbag mounting portion 56 of the bracket 26. Then, the airbag 2 is connected to the bracket 26. Furthermore, the protector side mounting portion 83 of the protector 28 is placed along the outside of the mounting receiving portion 51 of the bracket 26, and a fixing tool such as a screw (not shown) inserted from the outside into the mounting hole 89 is screwed into the protector mounting portion 55 of the bracket 26. Then, the protector 28 is connected to the bracket 26 and fixed.

さらに、連結部27の第２の取付部64と補強板29とを接着などして連結し、ブラケット26に連結部27を取り付ける。この作業は、ブラケット26の取付受部51の外側面に連結部27の第１の取付部63を重ね、作業孔67，75を介して内側からビスなどの固定具71を挿入し、さらにヒンジ取付部54に螺合して固定して行われる。 Further, the second mounting portion 64 of the connecting portion 27 and the reinforcing plate 29 are connected by bonding or the like, and the connecting portion 27 is attached to the bracket 26. In this operation, the first mounting portion 63 of the connecting portion 27 is overlapped on the outer surface of the mounting receiving portion 51 of the bracket 26, a fixing tool 71 such as a screw is inserted from the inside through the working holes 67 and 75, and the hinge is further hinged. This is performed by screwing and fixing to the mounting portion.

次いで、エアバッグ２の取付片部32の規制部35の先端側を、下側から補強板29の外側に沿わせ、先端部の係止部35cを係止突部77に係止して仮止めする。 Next, the front end side of the restricting portion 35 of the attachment piece 32 of the airbag 2 is extended from the lower side to the outside of the reinforcing plate 29, and the locking portion 35c of the front end portion is locked to the locking projection 77 to temporarily Stop.

そして、規制部35の先端側の部分を挟み込むようにして、補強板29の外側にガーニッシュ18のガーニッシュ側取付部42の第２の取付片部45を沿わせ、第２の取付片部45の各取付孔48から挿入したビスなどの固定具74を、補強板29の取付孔73に螺合して、補強板29とガーニッシュ18とを固定する。この状態で、エアバッグ２の取付片部32の規制部35の先端側は、補強板29とガーニッシュ18とに挟まれるとともに、取付孔35bに固定具が貫通して抜け止めされている。さらにこの状態で、図１(a)に示すように、エアバッグ２の取付片部32の規制部35の中間部は、余裕があり、若干弛んだ状態になっている。 Then, the second mounting piece 45 of the garnish side mounting portion 42 of the garnish 18 is placed on the outer side of the reinforcing plate 29 so as to sandwich the tip side portion of the restricting portion 35, and the second mounting piece portion 45 A fixing tool 74 such as a screw inserted from each mounting hole 48 is screwed into the mounting hole 73 of the reinforcing plate 29 to fix the reinforcing plate 29 and the garnish 18. In this state, the front end side of the restricting portion 35 of the attachment piece 32 of the airbag 2 is sandwiched between the reinforcing plate 29 and the garnish 18, and a fixing tool passes through the attachment hole 35b and is prevented from coming off. Further, in this state, as shown in FIG. 1A, the intermediate portion of the restricting portion 35 of the attachment piece portion 32 of the airbag 2 has a margin and is slightly slackened.

すなわち、この状態で、エアバッグ２の取付片部32の規制部35により、ブラケット26の下側部と補強板29の下側部とが連結され、すなわち、これらブラケット26と補強板29とを介して、連結部27の第１の取付部63の先端側と第２の取付部64の先端側とが連結されている。 That is, in this state, the lower portion of the bracket 26 and the lower portion of the reinforcing plate 29 are connected by the restricting portion 35 of the attachment piece 32 of the airbag 2, that is, the bracket 26 and the reinforcing plate 29 are connected to each other. Thus, the distal end side of the first attachment portion 63 and the distal end side of the second attachment portion 64 of the coupling portion 27 are coupled.

このようにして、エアバッグ２、ガーニッシュ18、プロテクタ28、連結部27、及び補強板29がブラケット26に取り付けられたモジュールであるエアバッグ装置１、いわばサブアッセンブリーされたカーテンエアバッグモジュールが構成される。 In this way, the airbag device 1, which is a module in which the airbag 2, the garnish 18, the protector 28, the connecting portion 27, and the reinforcing plate 29 are attached to the bracket 26, that is, a sub-assembled curtain airbag module is configured. The

そして、このモジュール化されたエアバッグ装置１を車体３に取り付ける際は、ブラケット26を、図示しないビスあるいはリベットなどの固着具を固定孔60に挿入して車体パネル15に固定して車体に取り付けるとともに、このブラケット26すなわちモジュールの取付作業の前後いずれかに、インフレータの接続管をエアバッグ２に接続するとともに、インフレータを車体３側に備えた制御装置に電気的に接続することにより、エアバッグ装置１の車体３への取付作業が完了する。 When this modularized airbag apparatus 1 is attached to the vehicle body 3, the bracket 26 is fixed to the vehicle body panel 15 by inserting a fixing tool such as a screw or rivet (not shown) into the fixing hole 60 and attached to the vehicle body. In addition, either before or after the bracket 26, that is, the module mounting operation, the inflator connecting pipe is connected to the airbag 2 and the inflator is electrically connected to a control device provided on the vehicle body 3 side, thereby The attachment work of the apparatus 1 to the vehicle body 3 is completed.

そして、このエアバッグ装置１及びヘッドライニング16を車体３へ取り付けた状態では、ガーニッシュ18のガーニッシュ側取付部42は、ヘッドライニング16により覆われて車室４側に露出しないとともに、ヘッドライニング16の面とガーニッシュ本体部41の面とがほぼ面一に連続するようになっている。 When the airbag device 1 and the head lining 16 are attached to the vehicle body 3, the garnish side attachment portion 42 of the garnish 18 is covered with the head lining 16 and is not exposed to the vehicle compartment 4 side. The surface and the surface of the garnish main body portion 41 are substantially flush with each other.

次に、エアバッグ２の展開動作を説明する。 Next, the deployment operation of the airbag 2 will be described.

車両の側面衝突あるいは横転などの際には、制御装置によりインフレータが作動し、このインフレータから噴射されるガスが接続管を介しガス導入口からエアバッグ本体部31内の膨張部に導入される。すると、エアバッグ本体部31の膨張部は、図１(a)及び図２に示す状態から、図１(b)に示すように、ガーニッシュ18を押しのけながら膨張展開し、所定面Ｓに沿った所定方向Ｆである略下方に迅速にカーテン状に膨張展開して、窓部及びセンターピラーなどを覆い、乗員とセンターピラーなどとの衝突の衝撃を緩和するとともに、乗員の車外放出を防止して保護する。 In the event of a side collision or rollover of the vehicle, the inflator is actuated by the control device, and the gas injected from the inflator is introduced into the inflating portion in the airbag main body 31 from the gas inlet through the connecting pipe. Then, the inflating part of the airbag main body 31 is inflated and deployed from the state shown in FIGS. 1 (a) and 2 while pushing the garnish 18 along the predetermined surface S as shown in FIG. 1 (b). Quickly inflates and deploys substantially downward in the predetermined direction F, covers the window and center pillar, etc., mitigates the impact of collision between the occupant and the center pillar, and prevents the occupant from releasing outside the vehicle. Protect.

そして、このエアバッグ２の膨張展開の際、樹脂製のガーニッシュ18が弾性的に変形するとともに、樹脂製の連結部27が開くように弾性的に変形して、ガーニッシュ18が開く方向に回動する移動を許容し、エアバッグ２の展開初期の大きな衝撃を吸収し、エアバッグ２の突出口を円滑に形成し、エアバッグ２を円滑に展開させる。 When the airbag 2 is inflated and deployed, the resin garnish 18 is elastically deformed, and the resin connecting portion 27 is elastically deformed so that the garnish 18 is opened. The air bag 2 is allowed to move, absorbs a large impact at the initial stage of deployment of the airbag 2, smoothly forms a protruding opening of the airbag 2, and smoothly deploys the airbag 2.

さらに、連結部27が変形する際は、連結部27が所定量だけ変形し、すなわち、ガーニッシュ18が所定量だけ回動した状態で、図１(b)に示すように、エアバッグ２の取付片部32の規制部35が張った状態となり、連結部27の開き方向の変形を抑制するいわばストッパとして機能し、ガーニッシュ18の移動が抑制される。 Further, when the connecting portion 27 is deformed, the connecting portion 27 is deformed by a predetermined amount, that is, with the garnish 18 rotated by a predetermined amount, as shown in FIG. The restricting portion 35 of the one-side portion 32 is in a tensioned state, functions as a so-called stopper that suppresses deformation of the connecting portion 27 in the opening direction, and the movement of the garnish 18 is suppressed.

また、連結部27が変形する際は、この連結部27のヒンジ部65は、単純なＵ字状ではなく、内側に膨出する断面略Ｕ字状に膨出する屈曲部65aを備えている。そこで、図４及び図５に模式的に示すように、展開初期のエアバッグ２の展開方向である所定方向Ｆに向かう力を、屈曲部65aが所定方向Ｆに向かって伸びる方向に変形することにより吸収し、屈曲部65aの頂点65bを中心としてガーニッシュ18を開き方向(図５に示す矢印Ｂ方向)に円滑に回動できるようになっている。 In addition, when the connecting portion 27 is deformed, the hinge portion 65 of the connecting portion 27 is not a simple U-shape, but includes a bent portion 65a that bulges in a substantially U-shaped cross section that bulges inward. . Therefore, as schematically shown in FIGS. 4 and 5, the force toward the predetermined direction F, which is the deployment direction of the airbag 2 at the initial stage of deployment, is deformed in a direction in which the bent portion 65a extends toward the predetermined direction F. Thus, the garnish 18 can be smoothly rotated in the opening direction (the direction of arrow B shown in FIG. 5) around the vertex 65b of the bent portion 65a.

このように、本実施の形態によれば、ルーフサイド部５に配置されるいわばカーテンエアバッグ装置であるエアバッグ装置１について、エアバッグ２の展開時に、エアバッグ２がガーニッシュ18を押動すると、樹脂製のガーニッシュ18が弾性的に変形するとともとに、樹脂製の連結部27が弾性的に変形してガーニッシュ18の移動を許容し、エアバッグ２の突出口を形成して、エアバッグ２を円滑に展開できる。 Thus, according to the present embodiment, when the airbag 2 is deployed, the airbag 2 pushes the garnish 18 with respect to the airbag device 1 that is a so-called curtain airbag device arranged in the roof side portion 5. The resin-made garnish 18 is elastically deformed, and the resin-made connecting portion 27 is elastically deformed to allow the garnish 18 to move, thereby forming a protruding opening of the airbag 2. 2 can be deployed smoothly.

そして、ガーニッシュ18の変形のみならず、連結部27が変形してガーニッシュ18の移動を許容することにより、エアバッグ２の展開初期の大きな衝撃を吸収するため、ガーニッシュ18の安定した適切な変形を可能とし、エアバッグ２を円滑に展開できる。すなわち、極端な高温時には、樹脂製のガーニッシュ18の剛性が低下し、柔らかくなる場合があるが、連結部27の変形でエアバッグ２の展開初期の大きな衝撃を吸収することにより、ガーニッシュ18の所望外の過度の変形を抑制できる。また、極端な低温時には、樹脂製のガーニッシュ18の剛性が大きくなり、すなわち固くなって変形しにくくなる場合があるが、連結部27の変形でエアバッグ２の展開初期の大きな衝撃を吸収することにより、ガーニッシュ18を保護できるため、ガーニッシュ18に特殊な材料などを用いる必要がなく、製造コストを低減できる。このようにして、広い温度範囲で、樹脂製のガーニッシュ18の挙動を適切に制御できる。 In addition to the deformation of the garnish 18, the connecting portion 27 is deformed to allow the movement of the garnish 18, thereby absorbing a large impact at the initial stage of deployment of the airbag 2. The airbag 2 can be smoothly deployed. That is, at an extremely high temperature, the rigidity of the resin garnish 18 may be lowered and softened. However, the deformation of the connecting portion 27 absorbs a large impact at the initial stage of deployment of the airbag 2, so that the desired garnish 18 can be obtained. Excessive external deformation can be suppressed. Also, at extremely low temperatures, the rigidity of the resin garnish 18 increases, that is, it may become hard and difficult to deform. However, the deformation of the connecting portion 27 absorbs a large impact at the initial stage of deployment of the airbag 2. Thus, since the garnish 18 can be protected, it is not necessary to use a special material or the like for the garnish 18, and the manufacturing cost can be reduced. In this way, the behavior of the resin garnish 18 can be appropriately controlled over a wide temperature range.

また、連結部27には、内側に膨出する断面略Ｕ字状に膨出する屈曲部65aを形成したため、展開初期のエアバッグ２の展開方向である所定方向Ｆに向かう力を、屈曲部65aが所定方向Ｆに向かって伸びる方向に変形することにより吸収し、屈曲部65aの頂点65bを中心としてガーニッシュ18を開き方向に円滑に回動できる。 Further, since the connecting portion 27 is formed with a bent portion 65a bulging in a substantially U-shaped cross section that bulges inwardly, a force toward a predetermined direction F that is a deployment direction of the airbag 2 at the initial stage of deployment is applied to the bent portion. The garnish 18 can be smoothly rotated in the opening direction around the apex 65b of the bent portion 65a by absorbing the deformation of the 65a in a direction extending in the predetermined direction F.

さらに、開き方向に変形する連結部27は、第１の取付部63及び第２の取付部64の先端部同士を、エアバッグ２の取付片部32に一体に設けた規制部35で連結したため、連結部27の移動量、すなわちガーニッシュ18の移動量を適切に抑制できる。 Further, the connecting portion 27 that deforms in the opening direction is formed by connecting the tip portions of the first mounting portion 63 and the second mounting portion 64 with a restricting portion 35 that is integrally provided on the mounting piece portion 32 of the airbag 2. Thus, the movement amount of the connecting portion 27, that is, the movement amount of the garnish 18 can be appropriately suppressed.

さらに、規制部35は、基布であるエアバッグ２の取付片部32に一体に設けられるため、ストッパとして専用の別体の部材を用いる必要がなくガーニッシュ18の挙動を制御でき、構成を簡略化して、エアバッグ装置１の製造コストを低減できる。 Furthermore, since the restricting portion 35 is provided integrally with the mounting piece portion 32 of the airbag 2 as a base fabric, it is not necessary to use a dedicated separate member as a stopper, and the behavior of the garnish 18 can be controlled and the configuration is simplified. And the manufacturing cost of the airbag apparatus 1 can be reduced.

そして、上記のように、ガーニッシュ18の挙動を安定して適切に制御できるため、連結部27の強度を小さく設定することが可能になる。そこで、ガーニッシュ18及び連結部27を軟質材である樹脂でそれぞれ一体に形成することが可能なり、金属で形成する場合に比べ、製造コストの低減や軽量化が容易になる。また、ガーニッシュ18を樹脂にて形成したため、鉄板などで形成する構成に比べ、内装材として適した外観や衝撃吸収特性などの特性を容易に実現できる。 As described above, since the behavior of the garnish 18 can be controlled stably and appropriately, the strength of the connecting portion 27 can be set small. Therefore, the garnish 18 and the connecting portion 27 can be integrally formed with a resin that is a soft material, and the manufacturing cost and the weight can be easily reduced as compared with the case where the garnish 18 and the connecting portion 27 are formed with metal. Further, since the garnish 18 is formed of resin, characteristics such as appearance and shock absorption characteristics suitable as an interior material can be easily realized as compared with a structure formed of an iron plate or the like.

また、エアバッグ装置１は、折り畳んだエアバッグ２の長手方向に沿って配置されるプロテクタ基板部81及びプロテクタ側板部82を設けたプロテクタ28を備えたため、エアバッグ２の収納時及び展開時に、エアバッグ２が車体パネル15などの車体３側の部材に干渉することを抑制して、エアバッグ２を保護できるとともに、展開過程においてエアバッグ２の展開方向を案内できる。 Moreover, since the airbag apparatus 1 is provided with the protector 28 provided with the protector substrate portion 81 and the protector side plate portion 82 arranged along the longitudinal direction of the folded airbag 2, when the airbag 2 is stored and deployed, The airbag 2 can be prevented from interfering with members of the vehicle body 3 such as the vehicle body panel 15 to protect the airbag 2, and the deployment direction of the airbag 2 can be guided in the deployment process.

このようにして、細長く折り畳んだ長尺なエアバッグ２を備えるとともに、このエアバッグ２を内装材であるガーニッシュ18で覆ったカーテンエアバッグについて、製造コストを低減できるとともに、展開特性を容易に良好にできる。 In this way, the curtain airbag having the long airbag 2 that is folded into a long and thin shape and covered with the garnish 18 that is the interior material can reduce the manufacturing cost and easily has good deployment characteristics. Can be.

また、本実施の形態では、エアバッグ２、ガーニッシュ18、ブラケット26、連結部27及びプロテクタ28を一体的に組み合わせてモジュールを構成し、車体３側へ取り付ける部品点数を削減して、取付作業を容易にでき、エアバッグ装置１の車体３への取付作業のコストを低減できる。すなわち、細長く折り畳んだ長尺なエアバッグ２を備えたカーテンエアバッグであるエアバッグ装置１は、肩より上の作業が必要であるが、本実施の形態によれば、作業効率が良く、車両への組み付け作業性を向上して設置作業を容易にでき、肩より上の作業時間を削減して、作業者への負担を小さくできる。 In the present embodiment, the air bag 2, the garnish 18, the bracket 26, the connecting portion 27, and the protector 28 are integrally combined to form a module, and the number of parts to be attached to the vehicle body 3 is reduced, so that the mounting work can be performed. This can be done easily, and the cost of the work of attaching the airbag device 1 to the vehicle body 3 can be reduced. That is, the airbag apparatus 1 that is a curtain airbag including the long airbag 2 that is folded long and narrow requires work above the shoulder, but according to the present embodiment, the work efficiency is good and the vehicle Assembling workability can be improved, installation work can be facilitated, work time above the shoulder can be reduced, and the burden on the operator can be reduced.

なお、連結部27及び他の部材の形状は、図１などに示す形状に限られるものではない。例えば、図６ないし図８に示すように、連結部27は、内側に向かって膨出する部分を設けず、断面略Ｕ字状とすることもできる。なお、これら図６ないし図８において、図１ないし図３に示す構成と同一の部分は同一の符号を付して説明を省略する。 In addition, the shape of the connection part 27 and another member is not restricted to the shape shown in FIG. For example, as shown in FIGS. 6 to 8, the connecting portion 27 may have a substantially U-shaped cross section without providing a portion that bulges inward. 6 to 8, the same parts as those shown in FIGS. 1 to 3 are denoted by the same reference numerals, and the description thereof is omitted.

また、連結部27は、例えば補強板29などの他の部材と一体に形成することもできる。 Further, the connecting portion 27 can be formed integrally with another member such as a reinforcing plate 29, for example.

また、上記の実施の形態では、エアバッグ２の取付片部32の規制部35は、直接的にはブラケット26と補強板29とを連結し、間接的に連結部27の第１の取付部63の先端部と第２の取付部64の先端部とを連結したが、この構成に限られず、エアバッグ２の取付片部32の規制部35により、連結部27の第１の取付部63の先端部と第２の取付部64の先端部とを連結することもできる。 In the embodiment described above, the restricting portion 35 of the attachment piece 32 of the airbag 2 directly connects the bracket 26 and the reinforcing plate 29 and indirectly the first attachment portion of the connection portion 27. The distal end portion of 63 and the distal end portion of the second attachment portion 64 are connected, but the present invention is not limited to this configuration, and the first attachment portion 63 of the connection portion 27 is restricted by the restriction portion 35 of the attachment piece portion 32 of the airbag 2. It is also possible to connect the leading end portion of the second mounting portion 64 to the leading end portion of the second mounting portion 64.

また、連結部27とガーニッシュ18とは、同一の材料で形成しても良く、あるいは材料を異ならせ、弾性変形する特性を調整することもできる。さらに、連結部27は、ガーニッシュ18に一体的に形成して、部品点数を削減し、製造コストを削減することもできる。 Further, the connecting portion 27 and the garnish 18 may be formed of the same material, or the characteristics of elastic deformation can be adjusted by using different materials. Further, the connecting portion 27 can be formed integrally with the garnish 18 to reduce the number of parts and the manufacturing cost.

また、ガーニッシュ18は、エアバッグ２の全長にわたり一体に形成する他、長手方向などに分割して形成することもできる。 Further, the garnish 18 can be formed in the longitudinal direction or the like in addition to being integrally formed over the entire length of the airbag 2.

また、ブラケット26に、付属品取付部を設け、アシストグリップなどの付属品を取付可能とすることにより、部材を兼用し構成を簡略化して製造コストを削減できるとともに、付属品の車体３への取付作業の作業性を向上できる。 In addition, by providing an accessory mounting portion on the bracket 26 so that an accessory such as an assist grip can be attached, the structure can be simplified by using the members together, and the manufacturing cost can be reduced. The workability of the mounting work can be improved.

また、エアバッグ２は、上側から下側に向かって展開して自動車の側方の窓部を覆う構成に限られず、所定面に沿って面状すなわちカーテン状に膨張展開する適宜のエアバッグ装置に適用できる。 The airbag 2 is not limited to a configuration in which the airbag 2 is deployed from the upper side to the lower side and covers a side window portion of the automobile, and an appropriate airbag device that inflates and deploys in a planar shape, that is, in a curtain shape along a predetermined surface. Applicable to.

本発明は、例えば、自動車の側部の窓部に沿って展開するカーテンエアバッグ装置と呼ばれるエアバッグ装置に適用できる。 The present invention can be applied to, for example, an airbag apparatus called a curtain airbag apparatus that is deployed along a side window of an automobile.

本発明のエアバッグ装置の一実施の形態を示す説明図であり、(a)は展開前の取付片部の位置の断面の説明図、(b)は展開過程のヒンジの位置の断面の説明図である。It is explanatory drawing which shows one embodiment of the airbag apparatus of this invention, (a) is explanatory drawing of the cross section of the position of the attachment piece part before expansion | deployment, (b) is description of the cross section of the position of the hinge of the expansion | deployment process FIG. 同上エアバッグ装置の展開前のヒンジの位置の断面の説明図である。It is explanatory drawing of the cross section of the position of the hinge before deployment of an airbag apparatus same as the above. 同上エアバッグ装置を模式的に示す分解斜視図である。It is an exploded perspective view showing an airbag device same as the above. 同上エアバッグ装置の展開時の動作を示す説明図である。It is explanatory drawing which shows the operation | movement at the time of expansion | deployment of an airbag apparatus same as the above. 同上エアバッグ装置の展開時の動作を示す説明図である。It is explanatory drawing which shows the operation | movement at the time of expansion | deployment of an airbag apparatus same as the above. 本発明のエアバッグ装置の他の実施の形態を示すヒンジの位置の断面の説明図である。It is explanatory drawing of the cross section of the position of the hinge which shows other embodiment of the airbag apparatus of this invention. 同上エアバッグ装置の取付片部の位置の断面の説明図である。It is explanatory drawing of the cross section of the position of the attachment piece part of an airbag apparatus same as the above. 同上エアバッグ装置の取付片部のヒンジと補強板とを示す斜視図である。It is a perspective view which shows the hinge and reinforcement board of the attachment piece part of an airbag apparatus same as the above.

Explanation of symbols

１エアバッグ装置
２エアバッグ
４車室
15 被取付部材を構成する車体パネル
18 カバー体としてのガーニッシュ
26 ブラケット
27 連結部
28 プロテクタ
31 エアバッグ本体部
32 取付片部
41 本体部としてのガーニッシュ本体部
42 取付部としてのガーニッシュ側取付部
63 第１の取付部
64 第２の取付部
65 ヒンジ部
65a 屈曲部
82 案内部としてのプロテクタ側板部
Ｆ所定方向
Ｓ所定面 DESCRIPTION OF SYMBOLS 1 Airbag apparatus 2 Airbag 4 Car compartment
15 Car body panels that make up the mounted member
18 Garnish as a cover
26 Bracket
27 Connecting part
28 Protector
31 Airbag body
32 Mounting piece
41 Garnish main body as main body
42 Garnish side mounting section as mounting section
63 First mounting part
64 Second mounting part
65 Hinge
65a Bend
82 Protector side plate as guide part F Predetermined direction S Predetermined surface

Claims

An airbag body portion in which gas is introduced from an elongated folded state and inflated and deployed, and an airbag provided with an attachment piece portion extending from the airbag body portion;
A main body that covers the airbag in a folded state along the longitudinal direction, and a cover body that includes an attachment portion continuous to the main body;
A first attachment portion attached to the attached member side, a second attachment portion attached to the attachment portion side of the cover body, and a proximal end side of the first attachment portion and a proximal end of the second attachment portion And a hinge portion that is deformable when the airbag is inflated and deployed, and the tip end side of the first attachment portion and the tip end side of the second attachment portion are connected by the attachment piece portion. An airbag device comprising: a connecting portion connected to each other.

The air bag is inflated and deployed along a predetermined surface in a predetermined direction when gas is introduced,
The airbag device according to claim 1, wherein the hinge portion includes a bent portion that is deformable in a direction extending in the predetermined direction.

A bracket attached to the attached member and to which the first attachment portion of the hinge is attached;
The protector provided with the guide part arrange | positioned along the longitudinal direction of the airbag of the folded state, The airbag apparatus of Claim 1 or 2 characterized by the above-mentioned.

The cover body is an interior material of the vehicle, the first attachment portion side of the hinge is positioned on a side portion of the vehicle compartment of the vehicle and is fixed to the vehicle body, and the airbag The airbag device according to any one of claims 1 to 3, wherein the airbag device is deployed along a side portion.