JP2011046349A

JP2011046349A - Airbag system

Info

Publication number: JP2011046349A
Application number: JP2009198395A
Authority: JP
Inventors: Mitsuhiro Yoshida; 光宏吉田
Original assignee: Nihon Plast Co Ltd
Current assignee: Nihon Plast Co Ltd
Priority date: 2009-08-28
Filing date: 2009-08-28
Publication date: 2011-03-10
Anticipated expiration: 2029-08-28
Also published as: JP5342377B2

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate handling of an airbag system by protecting an attachment piece protruding from an airbag body of a curtain airbag. <P>SOLUTION: A metal bracket 22 is attached to the fabric annular attachment piece 32 protruding from the airbag body 31. The airbag 1 is attached to a vehicle body 3 through the bracket 22. The bracket 22 includes a plate section 40 inserted into the attachment piece 32; and an attachment receiving section 44 protruding from the plate section 40 and attached to the vehicle body 3. A resin protector 24 covers the upper side of the folded airbag body 31, and also covers the attachment receiving section 44 attached to the plate section 40. After assembling the airbag system 2, in the steps of shipping, transporting, and vehicle assembling, the attachment piece 32 is covered and protected by the protector 24, and the attachment receiving section 44 is exposed to neither an operator nor the vehicle body, thereby facilitating the handling of the airbag system 2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、例えば、自動車の側部の窓部に沿ってエアバッグを展開し乗員の頭部を保護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 side window of an automobile and protects the head of an occupant.

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、自動車の車体の側部の窓部などに沿ってエアバッグを展開し乗員を保護するいわゆるカーテンエアバッグ装置が知られている。そして、このエアバッグは、通常時は、細長く折り畳まれ、車室側面の窓部の上側部のルーフサイド部に沿って収納されている。また、このエアバッグは、上縁部の複数カ所から取付片部が突設され、これら取付片部が例えば金属製のブラケット及びリベットなどを用いて、ルーフサイド部に取り付けられている。そして、このエアバッグ装置は、自動車が側面衝突など側方からの衝撃を受けた際に、エアバッグにインフレータからガスを供給し、エアバッグを側部のドアの窓部やＢピラーなどに沿って下方に偏平に膨張展開し、乗員の頭部などを保護するようになっている。 2. Description of the Related Art Conventionally, as an airbag apparatus having an airbag that inflates and deploys by introducing gas, a so-called curtain airbag apparatus that deploys an airbag along a window portion on a side of a vehicle body of an automobile and protects an occupant is known. ing. The airbag is normally folded in an elongated shape and stored along the roof side portion on the upper side of the window portion on the side surface of the passenger compartment. Further, the airbag has mounting pieces protruding from a plurality of locations on the upper edge, and these mounting pieces are attached to the roof side using, for example, metal brackets and rivets. The airbag device supplies gas from the inflator to the airbag when the automobile receives a side impact such as a side collision, and the airbag is aligned with the side door window or the B pillar. Inflated and flattened downward to protect the occupant's head 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に沿ってプロテクタを配置し、エアバッグを保護する構成が知られている(例えば、特許文献１参照)。この構成では、プロテクタは、断面略Ｌ字状をなし、折り畳んだエアバッグの上側面及び車室外側面に沿って配置されている。そして、プロテクタの上側部にはブラケットが取り付けられ、このブラケットに、プロテクタの上側に引き出した取付片部を固定するようになっている。 About such an airbag apparatus, the structure which arrange | positions a protector along the folded airbag and protects an airbag is known (for example, refer patent document 1). In this configuration, the protector has a substantially L-shaped cross section, and is disposed along the upper side surface of the folded airbag and the outer side surface of the passenger compartment. A bracket is attached to the upper part of the protector, and an attachment piece drawn to the upper side of the protector is fixed to the bracket.

特開２００９−６８９２号公報（第５頁、図１−２）JP 2009-6892 A (Page 5, FIG. 1-2)

上記従来の構成では、折り畳んだエアバッグの本体部分はプロテクタに覆われ、いわばプロテクタの内側で保護されるものの、取付片部はブラケットとともにプロテクタの外側に突出する状態となる。 In the above-described conventional configuration, the body portion of the folded airbag is covered with the protector, and so to speak, is protected inside the protector, but the attachment piece portion protrudes to the outside of the protector together with the bracket.

また、エアバッグ装置は、組立作業時や搬送時に、いわゆる通箱に収納されるが、このようなエアバッグ装置は、一般に長尺で物流時及び車体取付時に困難性がある。すなわち、エアバッグ装置が装着時の形状で収納可能な長尺の通箱に複数のエアバッグ装置を収納すると、隣接したエアバッグのブラケット同士が接触する。一方、これら隣接するエアバッグ装置のブラケット同士が接触しないようにエアバッグ装置同士を隔離するスペーサを配置すると、通箱の収納効率が低下する。また、長尺の通箱は運送用車両の荷台を占有し、物流コストの抑制が困難であるため、長尺のエアバッグ装置を中間で折り曲げて収納することが考えられるが、１のエアバッグ装置の前側のブラケットと後側のブラケットとが互いに接触し、ブラケット同士の接触頻度が格段に上昇する。 In addition, the airbag device is housed in a so-called box when assembling or transporting. However, such an airbag device is generally long and has difficulty in distribution and mounting on the vehicle body. That is, when a plurality of airbag devices are stored in a long pass box that can be stored in the shape when the airbag device is mounted, the brackets of adjacent airbags contact each other. On the other hand, if the spacer which isolates airbag apparatuses is arrange | positioned so that the brackets of these adjacent airbag apparatuses may not contact, the storage efficiency of a through box will fall. In addition, since the long box occupies the loading platform of the transportation vehicle and it is difficult to control the distribution cost, it is conceivable to store the long airbag device by folding it in the middle. The bracket on the front side and the bracket on the rear side of the apparatus are in contact with each other, and the contact frequency between the brackets is significantly increased.

そして、取付片部は、エアバッグを構成する基布パネルを切り残して延長して形成され、例えば鋼板をプレス加工したブラケットやプラスチック製のプロテクタに比べて靱性が小さい。そこで、露出した取付片部には組立作業時や搬送時にしわ等が発生しやすく、品質にばらつきが生じないように、煩雑な作業が必要になる。例えば、取付片部に余長が設定されていると、この余長部分が他の部材に挟まれないように組立作業をする必要がある。さらに、一般に、カーテンエアバッグは、取付位置が天井の角部であり、作業の質の確認が容易でないとともに、手直し作業も容易ではない。また、搬送時にも、取付片部が他の部材などに接触しないように保護する部材や空間が必要になる。このように、品質を確保するためには、正確な作業を確実に行う作業者によって厳重に管理された工程を継続的に運営しなければならず、製造コストの低減が容易でない。 And the attachment piece part is formed by cutting and extending the base fabric panel constituting the airbag, and has less toughness than, for example, a bracket or a plastic protector formed by pressing a steel plate. Therefore, wrinkles or the like are likely to occur in the exposed mounting piece during assembly work or transport, and complicated work is required so that quality does not vary. For example, when a surplus length is set in the mounting piece, it is necessary to perform an assembling operation so that the surplus length portion is not sandwiched between other members. Furthermore, in general, the curtain airbag is mounted at the corner of the ceiling, so that it is not easy to check the quality of the work and the repair work is not easy. In addition, a member or space that protects the mounting piece from coming into contact with other members or the like is also required during conveyance. Thus, in order to ensure quality, the process strictly controlled by the operator who performs an accurate operation | work reliably must be operated continuously, and reduction of manufacturing cost is not easy.

本発明は、このような点に鑑みなされたもので、取扱が容易で品質を容易に向上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 these points, and an object thereof is to provide an airbag device that is easy to handle and can easily improve quality.

請求項１記載のエアバッグ装置は、折り畳まれた状態からガスが導入されて所定方向に膨出するエアバッグ本体部及びこのエアバッグ本体部から突設された取付片部を備えたエアバッグと、折り畳まれた状態の前記エアバッグ本体部及び前記取付片部の反所定方向側の少なくとも一部を覆うプロテクタと、前記プロテクタに覆われた位置で前記取付片部に連結されるバッグ支持部及びこのバッグ支持部から前記プロテクタの外側に突設され被取付部材に取り付けられる取付受部を備えたブラケットとを具備したものである。 The airbag device according to claim 1 is an airbag including an airbag main body portion that is inflated in a predetermined direction when gas is introduced from a folded state, and an attachment piece portion protruding from the airbag main body portion. A protector that covers at least a part of the airbag main body portion in the folded state and the attachment piece portion on the side opposite to the predetermined direction; a bag support portion that is coupled to the attachment piece portion at a position covered by the protector; A bracket provided with an attachment receiving portion protruding from the bag support portion to the outside of the protector and attached to the attached member.

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、取付片部は、環状をなす環状部を備え、ブラケットは、前記環状部に挿入される挿入部と、前記挿入部を前記環状部に挿入可能な第１の形態と前記環状部を挿入部から抜け止めする第２の形態とに変形可能な抜止部と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 attachment piece portion includes an annular portion that forms an annular shape, and the bracket includes an insertion portion that is inserted into the annular portion, and the insertion portion. Is provided with a retaining part that can be deformed into a first form in which the annular part can be inserted into the annular part and a second form in which the annular part is retained from the insertion part.

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、プロテクタは、ブラケットが第１の方向に沿って挿入されかつ挿入された状態で前記第１の方向と交差する第２の方向に移動可能な開口部と、前記第２の方向に沿って前記開口部の内側に突設された保護片部とを備えたものである。 The airbag device according to claim 3 is the airbag device according to claim 1 or 2, wherein the protector crosses the first direction in a state where the bracket is inserted along the first direction and is inserted. An opening that is movable in the second direction and a protective piece that protrudes inside the opening along the second direction are provided.

請求項１記載のエアバッグ装置によれば、折り畳まれた状態からガスが導入されて所定方向に膨出するエアバッグのエアバッグ本体部により、被保護物が保護される。エアバッグは、エアバッグ本体部から突設された取付片部に連結されたブラケットを介して、被取付部材に取り付けられる。プロテクタは、折り畳まれた状態のエアバッグ本体部の反所定方向側を覆い、エアバッグ本体部が保護される。さらに、プロテクタは取付片部の反所定方向側を覆い、プロテクタに覆われた位置でブラケットが取付片部に連結されるとともに、ブラケットがプロテクタの外側に突設された部分で被取付部材に取り付けられる。そこで、エアバッグ装置の組立後、出荷、搬送、及び設置などの工程において、取付片部がプロテクタに覆われた状態で外部に露出することを抑制できる。また、エアバッグ本体部と取付片部とがプロテクタの同一側に配置されるため、エアバッグ本体部と取付片部との相対的な移動を抑制できる。このように、エアバッグの取付片部が外部の部材から影響を受けて正規の状態から外れることを防止でき、エアバッグの取扱を容易にでき、エアバッグ装置の品質を容易に向上できる。 According to the airbag device of the first aspect, the object to be protected is protected by the airbag main body portion of the airbag that is inflated in a predetermined direction when gas is introduced from the folded state. The airbag is attached to the attachment member via a bracket connected to an attachment piece projecting from the airbag body. The protector covers the anti-predetermined direction side of the airbag body portion in a folded state, and the airbag body portion is protected. Further, the protector covers the side of the mounting piece opposite to the predetermined direction, and the bracket is connected to the mounting piece at a position covered by the protector, and the bracket is attached to the mounted member at a portion protruding from the protector. It is done. Therefore, it is possible to prevent the attachment piece portion from being exposed to the outside in a state of being covered with the protector in processes such as shipment, conveyance, and installation after the assembly of the airbag device. Moreover, since an airbag main-body part and an attachment piece part are arrange | positioned at the same side of a protector, the relative movement of an airbag main-body part and an attachment piece part can be suppressed. In this way, it is possible to prevent the attachment piece of the airbag from being affected by an external member and deviating from the normal state, to facilitate handling of the airbag, and to easily improve the quality of the airbag device.

請求項２記載のエアバッグ装置によれば、請求項１記載の効果に加え、ブラケットの抜止部を第１の形態とした状態で、このブラケットの挿入部をエアバッグの取付片部の環状部に挿入し、次いで、抜止部を第２の形態に変形させることにより、エアバッグの取付片部をブラケットに抜け止めでき、エアバッグとブラケットとを作業性良く連結できる。 According to the airbag device of the second aspect, in addition to the effect of the first aspect, in the state where the retaining portion of the bracket is in the first form, the insertion portion of the bracket is used as the annular portion of the attachment piece portion of the airbag. Then, by deforming the retaining portion into the second form, the attachment piece portion of the airbag can be prevented from being detached from the bracket, and the airbag and the bracket can be connected with good workability.

請求項３記載のエアバッグ装置によれば、請求項１または２記載の効果に加え、プロテクタの開口部は、ブラケットを第１の方向に挿入した状態で第２の方向に移動可能であり、ブラケットとプロテクタとを相対的に移動させることにより、調整作業や取付作業などが可能になる。プロテクタの開口部は、ブラケットを挿入した状態で移動可能とするため大きく開口するが、第２の方向に沿って開口部の内側に保護片部を突設したため、エアバッグ本体部及び取付片部の露出を抑制してエアバッグを保護できる。 According to the airbag device of claim 3, in addition to the effect of claim 1 or 2, the opening of the protector is movable in the second direction with the bracket inserted in the first direction, By moving the bracket and the protector relative to each other, adjustment work and mounting work can be performed. The opening of the protector is large so that it can be moved with the bracket inserted, but the protective piece protrudes from the inside of the opening along the second direction. The air bag can be protected by suppressing the exposure of the air bag.

本発明のエアバッグ装置の一実施の形態を模式的に示す説明図であり、(a)はエアバッグとブラケットとの組立工程を示す説明図、(b)はエアバッグ装置を車体に搭載した状態の説明図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view schematically showing an embodiment of an airbag apparatus according to the present invention, (a) is an explanatory view showing an assembly process of an airbag and a bracket, and (b) is an airbag apparatus mounted on a vehicle body. It is explanatory drawing of a state. 同上エアバッグ装置を模式的に示す側面図である。It is a side view which shows typically an airbag apparatus same as the above. 同上エアバッグ装置を模式的に示す図２のＩ−Ｉ断面図である。It is II sectional drawing of FIG. 2 which shows an airbag apparatus same as the above. 同上エアバッグ装置を車体に取り付けた状態を模式的に示す図２のＩ−Ｉ相当位置の断面図である。It is sectional drawing of the II equivalent position of FIG. 2 which shows the state which attached the airbag apparatus same as the above to the vehicle body. 同上エアバッグ装置のブラケットの製造工程を示す説明図である。It is explanatory drawing which shows the manufacturing process of the bracket of an airbag apparatus same as the above. 同上エアバッグ装置のエアバッグとブラケットとの組立工程を示す説明図である。It is explanatory drawing which shows the assembly process of the airbag and bracket of an airbag apparatus same as the above. 同上エアバッグ装置のエアバッグとブラケットとの組立工程を示す説明図である。It is explanatory drawing which shows the assembly process of the airbag and bracket of an airbag apparatus same as the above. 同上エアバッグ装置のエアバッグ及びブラケットとプロテクタとの組立工程を示す説明図である。It is explanatory drawing which shows the assembly process of the airbag of an airbag apparatus same as the above, a bracket, and a protector. 同上エアバッグ装置のエアバッグ及びブラケットにプロテクタ取り付けた状態を示す説明図である。It is explanatory drawing which shows the state which attached the protector to the airbag and bracket 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説明図である。It is explanatory drawing which shows other embodiment of the airbag apparatus of this invention. 同上エアバッグ装置の一部の平面図である。It is a partial top view of an airbag apparatus same as the above. 本発明のエアバッグ装置のさらに他の実施の形態を示す組立工程の説明図である。It is explanatory drawing of the assembly process which shows other embodiment of the airbag apparatus of this invention. 本発明のエアバッグ装置のさらに他の実施の形態を示す組立工程の説明図である。It is explanatory drawing of the assembly process which shows other embodiment of the airbag apparatus of this invention. 同上エアバッグ装置を模式的に示す一部の斜視図である。It is a partial perspective view which shows typically an airbag apparatus same as the above. 同上エアバッグ装置のプロテクタの一部の斜視図であるIt is a perspective view of a part of protector of an airbag apparatus same as the above. 同上エアバッグ装置の組立工程を示す図１４のII−II相当位置の断面図である。It is sectional drawing of the II-II equivalent position of FIG. 14 which shows the assembly process of an airbag apparatus same as the above. 同上エアバッグ装置の組立工程を示す図１４のIII−III相当位置の断面図である。It is sectional drawing of the III-III equivalent position of FIG. 14 which shows the assembly process of an airbag apparatus same as the above.

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９において、１はエアバッグで、このエアバッグ１を備えたエアバッグ装置２は、カーテンエアバッグ装置、カーテン型エアバッグモジュール(CAB)、あるいは頭部保護エアバッグ装置などとも呼ばれるもので、車両としての自動車を構成する車体３の車室４の被設置部であるルーフサイド部５に配置されている。そして、このエアバッグ１は、カーテンエアバッグ、側突用エアバッグ、インフレータブルカーテン、あるいは頭部保護エアバッグなどとも呼ばれるもので、側面衝突の衝撃を受けた際や横転（ロールオーバー）の際などに、被保護物としての座席に着席した乗員の側方にほぼ面状に展開し、乗員を保護するようになっている。 1 to 9, reference numeral 1 denotes an airbag. An airbag device 2 including the airbag 1 is also called a curtain airbag device, a curtain-type airbag module (CAB), or a head protection airbag device. Therefore, it is arranged on the roof side portion 5 which is the installation portion of the compartment 4 of the vehicle body 3 constituting the automobile as a vehicle. The airbag 1 is also called a curtain airbag, a side-impact airbag, an inflatable curtain, or a head protection airbag. The airbag 1 is subjected to a side impact or rollover. In addition, it is deployed in a substantially planar manner on the side of the occupant seated in the seat as the object to be protected to protect the occupant.

なお、以下、前後方向、車幅方向である両側方向、上下方向などの方向は、車体３の直進方向を基準とし、前側方向（図１に示す矢印Ｆ方向）、所定方向としての下方（図１に示す矢印Ａ方向）、反所定方向としての上方（図１に示す矢印Ｕ方向）、外方（図１及び図４に示す矢印Ｗ方向）などを説明する。 In the following description, the front-rear direction, the vehicle width direction, the both-side direction, the up-down direction, and the like are based on the straight direction of the vehicle body 3 as a reference, the front side direction (arrow F direction shown in FIG. 1 (the direction of arrow A shown in FIG. 1), the upper direction (the direction of arrow U shown in FIG. 1), the outward direction (the direction of arrow W shown in FIGS. 1 and 4), and the like.

そして、この自動車の車体３は、図１に示すように、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、開口可能な窓部（サイドウィンドウ）８を備えたドアが設けられている。また、車室の両側の側部10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11、Ｂピラーとも呼ばれるセンターピラー12、Ｃピラーとも呼ばれるリアピラー13が設けられている。そして、これら窓部８、ドア及び各ピラー11，12，13などにより、車室の両側の側部10に所定面14が構成されている。また、これらピラー11，12，13の上側、すなわち窓部８の一縁部である上縁部に、車体パネルを構成する被取付部材としてのルーフサイドレール5aが設けられ、このルーフサイドレール5aを介して図示しない天井部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11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13の後側にはリアガラスが設けられている。 As shown in FIG. 1, the vehicle body 3 includes a front seat and a rear seat in which a passenger can sit, and a window portion that can be opened corresponding to the front seat and the rear seat. A door with (side window) 8 is provided. Further, on the side portions 10 on both sides of the passenger compartment, a front pillar 11 called an A pillar, a center pillar 12 called a B pillar, and a rear pillar 13 called a C pillar are provided in order from the front side. And the predetermined surface 14 is comprised by the side part 10 of the both sides of a vehicle interior by these window parts 8, a door, and each pillar 11, 12, 13 grade | etc.,. Further, a roof side rail 5a as a member to be mounted constituting the vehicle body panel is provided on the upper side of the pillars 11, 12, and 13, that is, the upper edge which is one edge of the window 8, and the roof side rail 5a The ceiling panel of the ceiling part which is not illustrated is supported via. A front glass (front windshield) is provided on the front side of the front pillars 11 on both sides, and a rear glass is provided on the rear side of the rear pillars 13 on both sides.

また、ルーフサイド部５は、車体３のドア開口部の上縁に沿った車室４の側部上縁部であり、天井パネルの両側の縁部の部分から、この縁部の部分と交差する方向に伸びるフロントピラー11及びリアピラー13のほぼ全長にかかる部分にまで設定され、これら天井パネルの縁部の部分とフロントピラー11及びリアピラー13とで仮想的に構成される弧の内側に、エアバッグ１が展開する所定面14が設定される。 The roof side part 5 is an upper edge part of the side part of the passenger compartment 4 along the upper edge of the door opening of the vehicle body 3, and intersects with the edge part from both edge parts of the ceiling panel. The front pillar 11 and the rear pillar 13 that extend in the direction of the vertical direction are set up to almost the entire length, and the air is placed inside the arc virtually formed by the edge portion of the ceiling panel and the front pillar 11 and the rear pillar 13. A predetermined surface 14 on which the bag 1 is deployed is set.

なお、ここで、センターピラー12とは、前席及び後席の間の部分の側方の側部10に位置し前後の端部のピラーではないピラーであり、展開したエアバッグ１に覆われるピラーを示す。また、車両の種類によっては、片側に例えば４本以上のピラーを備える場合があるが、前から３本目以後のピラーは、リアピラー13として説明する。 Here, the center pillar 12 is a pillar that is located on the side portion 10 on the side of the portion between the front seat and the rear seat and is not a pillar at the front and rear ends, and is covered by the deployed airbag 1. Shows the pillar. Depending on the type of vehicle, for example, four or more pillars may be provided on one side, but the third and subsequent pillars from the front will be described as the rear pillar 13.

また、図示しないが、天井パネルの下面すなわち車室４側には、ルーフライニングあるいはヘッドライニングなどと呼ばれる軟質のパネルであるルーフトリムが配置され、このルーフトリムにより、ルーフサイド部５の車室４側が覆われるようになっている。 Although not shown, a roof trim, which is a soft panel called roof lining or head lining, is disposed on the lower surface of the ceiling panel, that is, on the vehicle compartment 4 side. The side is covered.

そして、エアバッグ装置２は、前席及び後席の乗員を保護可能な、いわゆる前後席用エアバッグであり、ルーフサイド部５に沿って細長く折り畳んで収納されたエアバッグ１に加え、後席の後部上側に位置してエアバッグ１に膨張のためのガスを供給するガス発生器であるインフレータ20、エアバッグ１をルーフサイドレール5aに取り付ける単数あるいは複数の主として金属製のブラケット22、折り畳んだエアバッグ１に沿って取り付けられて展開時などにエアバッグ１を保護する樹脂製のプロテクタ24、エアバッグ１の前端部に連結された吊り紐26、及び折り畳んだエアバッグ１の形状を保持する形状保持部材28などが備えられ、モジュールが構成されている。 The airbag device 2 is a so-called front / rear seat airbag that can protect front and rear passengers, and in addition to the airbag 1 folded and stored along the roof side portion 5, the rear seat An inflator 20 that is a gas generator for supplying gas for inflation to the airbag 1 located on the rear upper side, and one or a plurality of mainly metal brackets 22 that attach the airbag 1 to the roof side rail 5a, are folded. A protector 24 made of resin that is attached along the airbag 1 and protects the airbag 1 during deployment, the hanging strap 26 connected to the front end of the airbag 1, and the shape of the folded airbag 1 are retained. A shape holding member 28 and the like are provided to constitute a module.

そして、エアバッグ１は、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、細長く折り畳んでルーフサイド部５に収納される。 The airbag 1 is a combination of a single base fabric or a plurality of base fabrics. For example, an airbag main body formed in a flat bag shape by folding back one base fabric or stacking and joining two base fabrics. 31 and attachment piece portions 32 extending from a plurality of locations of the airbag main body portion 31 and the like, and are folded into an elongated shape and stored in the roof side portion 5.

例えば、エアバッグ本体部31は、車室４側に配置される内側の基布部と車体３側である外側に配置される外側の基布部とを重ね、接合部である所定の縫製部で縫い合わせ、ガスが流入して膨張展開する袋状の膨張部と、この膨張部に連通するインフレータ接続部と、ガスが流入せず膨張展開しない非膨張部となどが設けられている。 For example, the airbag main body 31 includes a predetermined sewing portion that is a joining portion by overlapping an inner base fabric portion disposed on the vehicle compartment 4 side and an outer base fabric portion disposed on the outer side on the vehicle body 3 side. And a bag-like inflatable portion that inflates and expands when gas flows in, an inflator connecting portion that communicates with the inflatable portion, a non-inflatable portion that does not inflow and expand without gas.

そして、膨張部は、中空部である気室であり、前席の乗員に対向して展開する前席保護部である第１の気室、後席の乗員に対向して展開する後席保護部である第２の気室、及びエアバッグ本体部31の上縁部に沿って前後方向を長手方向として設けられこれら気室同士の上側部を連通させる連通路を備えている。また、インフレータ接続部は、膨張部の後端上部に接続され、あるいは、連通路から上側に分岐して形成されている。さらに、基布部どうしを接合する縫製部は、縫製、接着、あるいは縫製とシール手段との併用などにより略気密あるいは高度な気密に構成され、インフレータ20に連通する部分を除いて膨張部の外周を縫製する外周縫製部と、この外周縫製部に囲まれた領域に位置し、第１の気室及び第２の気室の展開時の幅寸法を規制する規制部とを備えている。さらに、非膨張部は、例えば、連通路の下側、すなわち、第１の気室と第２の気室との間の通常乗員が対向しない位置に、例えば外側の基布部のみの１枚の基布で構成されている。 The inflating portion is an air chamber that is a hollow portion, and a first air chamber that is a front seat protecting portion that is deployed to face the front seat occupant, and a rear seat protection that is deployed to face the rear seat occupant. A second air chamber, which is a portion, and a communication passage which is provided along the upper edge portion of the airbag main body 31 with the front-rear direction as a longitudinal direction and communicates the upper portions of the air chambers. The inflator connecting portion is connected to the upper part of the rear end of the inflating portion, or is formed to branch upward from the communication path. Furthermore, the sewn part that joins the base fabric parts is configured to be substantially airtight or highly airtight by sewing, bonding, or a combination of sewing and sealing means, and the outer periphery of the inflating part except for the part communicating with the inflator 20 And a restricting portion that is located in a region surrounded by the outer periphery sewing portion and restricts the width dimension when the first air chamber and the second air chamber are deployed. Furthermore, the non-inflatable part is, for example, one sheet of only the outer base cloth part, for example, at the lower side of the communication path, that is, at a position where the normal occupant does not face between the first air chamber and the second air chamber It is composed of the base fabric.

また、エアバッグ１の取付片部32は、車体取付用の取付点である取付片であり、エアバッグ本体部31の上縁部31aに互いに間隔を介して複数形成され、それぞれブラケット22が取り付けられる。そして、各取付片部32は、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、すなわち布製で、例えば、内側の基布部と外側の基布部とから一体に舌片状に延設された部分を重ね縫着して形成されている。さらに、これら取付片部32は、ほぼ全体がループ状すなわち環状をなす環状部33となっている。また、各取付片部32には、円孔状の取付孔34が形成されている。 Further, the attachment piece 32 of the airbag 1 is an attachment piece that is an attachment point for attaching the vehicle body. A plurality of attachment pieces 32 are formed on the upper edge 31a of the airbag main body 31 with a space between them. It is done. Each attachment piece 32 is formed integrally with the base fabric portion constituting the airbag main body 31, that is, made of cloth, for example, a tongue piece shape integrally from the inner base fabric portion and the outer base fabric portion. It is formed by overlapping and sewing the portion extended to the top. Further, these attachment piece portions 32 are formed as an annular portion 33 having a substantially loop shape, that is, an annular shape. Each attachment piece 32 is formed with a circular attachment hole 34.

さらに、吊り紐26は、テザー、テザーベルト、あるいはストラップなどとも呼ばれるもので、基布などにてひも状に形成され、基端部がエアバッグ本体部31の前側部に縫合などして連結され、先端部には、取付金具26aが取り付けられている。 Further, the hanging strap 26 is also called a tether, a tether belt, or a strap, and is formed in a string shape with a base cloth or the like, and a base end portion is connected to the front side portion of the airbag main body 31 by sewing or the like, A mounting bracket 26a is attached to the tip.

また、各ブラケット22は、互いに同じ形状で、金属製のブラケット本体部36と、このブラケット本体部36に一体的に設けられた樹脂製の係合部38とを備えている。そして、ブラケット本体部36は、塑性変形可能なプレス成形用鋼板を打ち抜き曲げ加工すなわちプレス成形して、主要な形状を得ており、バック支持部及び挿入部としてのプレート部40と、抜止部を構成する一対の閉止片部41，42により構成された取付受部44とが一体に形成されている。そして、プレート部40は、前後方向を長手方向とする矩形平板状に形成されている。また、各閉止片部41，42は、鋼板から打ち抜かれた状態では、図５(a)に示すように、それぞれ逆Ｌ字状をなしてプレート部40の一辺から並んで延設され、プレート部40に連続し変形部を構成する連結部41a，42aと、各連結部41a，42aから互いに同じ方向に突設された取付部41b，42bとを備えている。そして、図５(b)に示すように、曲げ加工により一方の取付部41bを他方の取付部42b側に折返し、各取付部41b，42bを互いに対向した状態とするとともに、各連結部41a，42aをプレート部40側の端部からそれぞれ所定の角度で折曲し、上側にいわば逆Ｌ字状に立ち上げる。また、各取付部41b，42bには、円孔状の取付孔41c，42cが形成されている。そして、これら閉止片部41，42は、プレス成形された状態では、第１の形態としてのプレート部40を起点として略Ｖ字状に開いた状態であり、例えば、図１(a)に示すように、前側から後方(図１に示す矢印Ｂ方向)を見て、一方の閉止片部41はプレート部40に対して１０５度をなすように、いわば反プレート部40側に傾斜するように屈曲され、他方の閉止片部42はプレート部40に対して４５度をなすように、いわばプレート部40側に傾斜するように屈曲されている。さらに、これら閉止片部41，42は、作業者の作業などにより変形して第２の形態となり、例えば、連結部41a，42aなどを曲げ変形させ、図１(b)及び図７に示すように、閉止片部41，42を何れもプレート部40に対して９０度をなすようにして傾斜角をなくし、取付部41b，42bを互いに重ね合わせるようになっている。そして、この第２の形態では、第１の形態で略Ｖ字状に開いていた部分が閉じて、環状となり、中央に開口部分45が形成されるとともに、各閉止片部41，42の取付孔41c，42cが互いに重なり連通するようになっている。また、各ブラケット22の係合部38は、プレート部40の前後の端部近傍に位置し、インサート成形により樹脂をいわゆるオーバーモールドして、プレート部40に固着され、かつ、プレート部40の上面から上側に隆起する弾性変形可能なフックとして形成されている。 Each bracket 22 has the same shape and includes a metal bracket body 36 and a resin engagement portion 38 provided integrally with the bracket body 36. The bracket body 36 is obtained by punching and bending a plastically deformable press forming steel plate, that is, press forming, to obtain a main shape, and a plate portion 40 as a back support portion and an insertion portion, and a retaining portion. A mounting receiving portion 44 constituted by a pair of constituting closing piece portions 41 and 42 is integrally formed. And the plate part 40 is formed in the rectangular flat plate shape which makes the front-back direction a longitudinal direction. Further, in the state of being punched from the steel plate, each of the closing piece portions 41 and 42 is formed in an inverted L shape and extends side by side from one side of the plate portion 40 as shown in FIG. The connecting portions 41a and 42a are connected to the portion 40 to form a deformed portion, and the mounting portions 41b and 42b are provided so as to protrude from the connecting portions 41a and 42a in the same direction. Then, as shown in FIG. 5 (b), one attachment portion 41b is folded back to the other attachment portion 42b side by bending so that the attachment portions 41b and 42b face each other, and each connection portion 41a, 42a is bent at a predetermined angle from the end on the plate portion 40 side, and is raised in an inverted L shape so to speak. In addition, circular attachment holes 41c and 42c are formed in the attachment portions 41b and 42b. And these closing piece parts 41 and 42 are the state opened in the substantially V shape from the plate part 40 as a 1st form in the press-molded state, for example, it shows to Fig.1 (a) As seen from the front side (in the direction of arrow B shown in FIG. 1), the one closing piece 41 is inclined to the opposite plate part 40 side so as to form 105 degrees with respect to the plate part 40. The other closing piece 42 is bent so as to incline toward the plate portion 40 so as to form 45 degrees with respect to the plate portion 40. Further, the closing piece portions 41 and 42 are deformed by the operator's work or the like to form the second form. For example, the connecting portions 41a and 42a are bent and deformed, as shown in FIGS. In addition, the closing pieces 41 and 42 are both at 90 degrees with respect to the plate portion 40 so that the inclination angle is eliminated, and the mounting portions 41b and 42b are overlapped with each other. And in this 2nd form, the part opened in the substantially V shape in the 1st form closes, it becomes cyclic | annular, the opening part 45 is formed in the center, and attachment of each closing piece part 41 and 42 is carried out. The holes 41c and 42c overlap and communicate with each other. In addition, the engaging portion 38 of each bracket 22 is located in the vicinity of the front and rear ends of the plate portion 40, is so-called overmolded by insert molding, fixed to the plate portion 40, and the upper surface of the plate portion 40 It is formed as an elastically deformable hook that protrudes upward from the top.

また、プロテクタ24は、カバーとも呼ばれるもので、折り畳んだエアバッグ１の略全長あるいは一部に沿って配置され、本実施の形態では折り畳んだエアバッグ本体部31の略全長の上半部に沿うように配置されている。そして、このプロテクタ24は、例えばオレフィン系エラストマー(TPE)を射出成形して、図３及び図８などに示すように、ハーフパイプ状すなわち断面半円状をなすプロテクタ本体部46が形成されている。さらに、このプロテクタ本体部46には、エアバッグ１の取付片部32の位置に対応し、上端部に、前後方向を長手方向とする開口部としてのスリット47と、このスリット47の前後に位置する角孔状の係合受部48とが開口形成されている。さらに、プロテクタ本体部46の長手方向に沿った一縁部からは、各スリット47同士の間に位置し、すなわち各係合受部48から離間した位置から、ラッピング片49が突設されているとともに、プロテクタ本体部46の長手方向に沿った他縁部には、ラッピング片49の先端部に設けた先端係合部49aが離反可能に係合されるラッピング片係合受部49bが長円状などに形成されている。 The protector 24 is also referred to as a cover, and is disposed along substantially the entire length or a part of the folded airbag 1. In the present embodiment, the protector 24 is along the upper half of the folded airbag body 31. Are arranged as follows. The protector 24 is formed by, for example, injection molding of an olefin elastomer (TPE) to form a protector main body 46 having a half pipe shape, that is, a semicircular cross section, as shown in FIGS. . Further, the protector main body 46 corresponds to the position of the attachment piece 32 of the airbag 1, and has a slit 47 as an opening having a longitudinal direction in the front-rear direction and a position before and after the slit 47. A square hole-shaped engagement receiving portion 48 is formed. Furthermore, from one edge along the longitudinal direction of the protector main body 46, a wrapping piece 49 is projected from a position that is located between the slits 47, that is, spaced from each engagement receiving portion 48. In addition, a wrapping piece engagement receiving portion 49b to which a tip engagement portion 49a provided at a tip portion of the wrapping piece 49 is detachably engaged is formed in an oval shape at the other edge portion along the longitudinal direction of the protector main body portion 46. It is formed in the shape.

一方、インフレータ20は、円柱状のインフレータ本体部を備え、このインフレータ本体部に、薬剤を燃焼させる燃焼式(パイロテクニックタイプ)、ガスを高圧で貯蔵する貯蔵式(ストレージタイプ)、あるいはこれら燃焼式と貯蔵式とを組み合わせたハイブリッド式などのガス発生手段が内蔵されている。そして、このインフレータ本体部の長手方向の一端部である前端部には、ガスを噴射するガス供給部が設けられ、インフレータ本体部の後端部には、ハーネスと呼ばれる電線が接続されるコネクタ部が設けられている。 On the other hand, the inflator 20 includes a cylindrical inflator main body, and in this inflator main body, a combustion type for burning chemicals (pyro technique type), a storage type for storing gas at high pressure (storage type), or these combustion types A gas generating means such as a hybrid type combining a storage type and a storage type is incorporated. And the gas supply part which injects gas is provided in the front-end part which is the one end part of the longitudinal direction of this inflator main-body part, and the connector part to which the electric wire called a harness is connected to the rear-end part of an inflator main-body part Is provided.

さらに、エアバッグ装置２は、車体３側に、センサなどを備えた図示しない制御装置を備え、この制御装置が、ハーネスを介してインフレータ20に電気的に接続されている。 Further, the airbag device 2 includes a control device (not shown) provided with a sensor or the like on the vehicle body 3 side, and this control device is electrically connected to the inflator 20 via a harness.

また、形状保持部材28は、折り畳んだエアバッグ１の形状を保持して折り崩れを防止するもので、本実施の形態では、破断可能な粘着テープであるいわゆるバインディングテープが用いられている。 Further, the shape holding member 28 is a member that holds the shape of the folded airbag 1 to prevent it from collapsing. In this embodiment, a so-called binding tape that is a breakable adhesive tape is used.

また、車体３のルーフサイドレール5aの所定位置には、図４に示すように、一体にあるいはナットを溶接するなどして、ねじ溝を有する被取付部5bが形成されている。そして、この被取付部5bには、車内側から、取付具であり締付具であるボルト55が螺合し、ルーフサイドレール5aに締め付け固定されるようになっている。 Further, as shown in FIG. 4, a mounting portion 5b having a thread groove is formed at a predetermined position of the roof side rail 5a of the vehicle body 3 as one body or by welding a nut. Then, a bolt 55 which is an attachment tool and a tightening tool is screwed into the attached portion 5b from the inside of the vehicle and is fastened and fixed to the roof side rail 5a.

次に、このエアバッグ装置２の組立工程及び車体３への取付工程を説明する。 Next, the assembly process of this airbag apparatus 2 and the attachment process to the vehicle body 3 are demonstrated.

まず、エアバッグ１は、図６に示すように、エアバッグ本体部31を所定の細長い形状に折り畳み、形状保持部材28を用いて折り畳み形状を保持する。このエアバッグ本体部31の折畳方法は、種々の方法を採ることができるが、例えば、エアバッグ本体部31を平面状に広げた状態から、図１(a)に示すように、展開時の下側部を渦巻き状すなわちロール状に折り畳んで集積部51を形成するとともに、展開時の上側部は波形すなわち蛇腹状に折り畳んだ案内部52とし、この案内部52で集積部51の上側部から両側部まで包むように折り畳む。なお、例えば、集積部51は、エアバッグ本体部31を下端部から外側すなわち所定面14側に巻き上げるように巻回している。また、案内部52は、連通路を含む部分であり、上側部を車室４側に折り線が向くように折返し、下側部を車外側に折り線が向くように折返して構成されている。 First, as shown in FIG. 6, the airbag 1 folds the airbag main body 31 into a predetermined elongated shape, and holds the folded shape using the shape holding member 28. The airbag body 31 can be folded in various ways. For example, as shown in FIG. 1 (a), the airbag body 31 is unfolded in a flat state. The lower portion of the stack is folded in a spiral shape, that is, in a roll shape to form the accumulation portion 51, and the upper portion when unfolded is a guide portion 52 folded in a corrugated shape, that is, an accordion shape. Fold it so that it wraps from side to side. For example, the stacking unit 51 winds the airbag main body 31 so as to wind up from the lower end to the outside, that is, the predetermined surface 14 side. Moreover, the guide part 52 is a part including the communication path, and is configured such that the upper part is folded back so that the fold line faces the vehicle compartment 4 side, and the lower part is folded so that the fold line faces the vehicle outer side. .

次に、エアバッグ１の各取付片部32に、ブラケット22を取り付ける。図１(a)に示すように、各ブラケット22は、閉止片部41，42が開いた第１の形態とし、矢印Ｂに示すように、プレート部40を取付片部32の環状部33内に挿入し、さらに、一方の閉止片部41を通過させず、他方の閉止片部42のみを通過させて、取付片部32をプレート部40の中央位置、すなわち各閉止片部41，42の連結部41a，42a同士の間に位置させる。 Next, the bracket 22 is attached to each attachment piece 32 of the airbag 1. As shown in FIG. 1 (a), each bracket 22 has a first configuration in which the closing piece portions 41 and 42 are opened, and the plate portion 40 is disposed in the annular portion 33 of the mounting piece portion 32 as shown by an arrow B. Further, without passing through one closing piece 41, only the other closing piece 42 is allowed to pass, and the mounting piece 32 is moved to the center position of the plate portion 40, that is, each closing piece 41, 42 It is located between the connecting portions 41a and 42a.

この状態から、連結部41a，42aを曲げるなどして、図７に示すように、閉止片部41，42が閉じた第２の形態とする。この第２の形態では、取付片部32の環状部33は、プレート部40の中央部分と閉止片部41，42とで閉じられた環状の部分に包囲され、取付片部32がブラケット22に抜け止めされる。さらに、この状態で、ブラケット22のプレート部40及び取付片部32が、折り畳んだエアバッグ本体部31の上部に沿って配置される。 From this state, the connecting portions 41a and 42a are bent to form the second form in which the closing piece portions 41 and 42 are closed as shown in FIG. In the second embodiment, the annular portion 33 of the attachment piece portion 32 is surrounded by an annular portion closed by the center portion of the plate portion 40 and the closing piece portions 41 and 42, and the attachment piece portion 32 is attached to the bracket 22. It is prevented from coming off. Further, in this state, the plate portion 40 and the mounting piece portion 32 of the bracket 22 are arranged along the upper portion of the folded airbag main body portion 31.

次いで、図８に示すように、プロテクタ24を、ブラケット22を取り付けたエアバッグ１に上方から被せるようにし、エアバッグ１をプロテクタ本体部46の内側部46aに収納しつつ、ブラケット22の取付受部44をスリット47を通して外側部46bすなわち上側部に引き出す。同時に、ブラケット22の係合部38をプロテクタ24の係合受部48に圧入して先端部を貫通させ、係合受部48の外側部46b側の縁に引っ掛ける。この状態で、係合部38と係合受部48との係合により、エアバッグ１がプロテクタ24に位置決めして仮固定される。さらに、図９に示すように、エアバッグ１を包むようにプロテクタ24のラッピング片49を曲げ、ラッピング片49の先端係合部49aをラッピング片係合受部49bに挿通して係合させる。このラッピング片49により、係合部38と係合受部48との係合により支持される部分同士の間のエアバッグ１の垂れ下がりが防止される。 Next, as shown in FIG. 8, the protector 24 is placed on the airbag 1 to which the bracket 22 is attached from above, and the bracket 22 is attached and received while the airbag 1 is housed in the inner portion 46 a of the protector main body 46. The portion 44 is pulled out to the outer portion 46b, that is, the upper portion through the slit 47. At the same time, the engaging portion 38 of the bracket 22 is press-fitted into the engaging receiving portion 48 of the protector 24 so as to penetrate the distal end portion and hooked on the edge of the engaging receiving portion 48 on the outer side 46b side. In this state, the airbag 1 is positioned and temporarily fixed to the protector 24 by the engagement between the engagement portion 38 and the engagement receiving portion 48. Further, as shown in FIG. 9, the wrapping piece 49 of the protector 24 is bent so as to wrap the airbag 1, and the tip engaging portion 49a of the wrapping piece 49 is inserted into and engaged with the wrapping piece engagement receiving portion 49b. The wrapping piece 49 prevents the airbag 1 from sagging between the parts supported by the engagement between the engagement portion 38 and the engagement receiving portion 48.

さらに、エアバッグ１のインフレータ接続部にインフレータ20を接続し、図２及び図３に示すように、エアバッグ装置２の組立状態であるモジュールが構成される。このモジュールの状態で、折り畳んだエアバッグ本体部31の上半部に加え、各取付片部32の全体がブラケット22のプレート部40ともに位置決めされた状態でプロテクタ24に覆われ、各取付片部32は全く外側部46bに露出せずに保護される。すなわち、運搬、保管や車体３への取付作業などの取扱時において、各取付片部32は他からの干渉を受けないとともに、各取付片部32とエアバッグ本体部31との相対的な動きもなく、一定の形状及び位置関係が保たれる。 Further, the inflator 20 is connected to the inflator connecting portion of the airbag 1, and as shown in FIGS. 2 and 3, a module that is an assembled state of the airbag device 2 is configured. In the state of this module, in addition to the folded upper half of the airbag main body 31, each mounting piece 32 is covered with the protector 24 in a state where the entire plate part 40 of the bracket 22 is positioned. 32 is protected without being exposed to the outer portion 46b. That is, during handling such as transportation, storage, and attachment work to the vehicle body 3, each attachment piece portion 32 is not subject to interference from others, and the relative movement between each attachment piece portion 32 and the airbag main body portion 31. In addition, a certain shape and positional relationship are maintained.

次に、エアバッグ装置２の車体３への取付作業を説明する。 Next, an operation for attaching the airbag device 2 to the vehicle body 3 will be described.

この取付作業は、まず、エアバッグ装置２のモジュールを車室４内に持ち込み、エアバッグ１をルーフサイド部５に沿って配置するとともに、図４に示すように、プロテクタ24の外側部46bに突出した各ブラケット22の取付受部44の取付孔41c，42cにボルト55を挿入し、このボルト55をルーフサイドレール5aの被取付部5bに螺合して締め付ける。この状態で、エアバッグ１が所定の位置に配置され、すなわち、ブラケット22を介して、ルーフサイド部５にエアバッグ１が取り付けられるとともに、ルーフサイドレール5aとボルト55の頭部との間に、取付受部44の閉止片部41，42の取付部41b，42bが互いに密着するように挟持され、閉止片部41，42が閉じた第２の形態が保持され、取付片部32がブラケット22から確実に外れなくなる。 First, the module of the airbag device 2 is brought into the passenger compartment 4 and the airbag 1 is disposed along the roof side portion 5 and is attached to the outer portion 46b of the protector 24 as shown in FIG. A bolt 55 is inserted into the mounting holes 41c and 42c of the mounting receiving portion 44 of each protruding bracket 22, and the bolt 55 is screwed into the mounted portion 5b of the roof side rail 5a and tightened. In this state, the airbag 1 is disposed at a predetermined position, that is, the airbag 1 is attached to the roof side portion 5 via the bracket 22, and between the roof side rail 5 a and the head of the bolt 55. The mounting portions 41b and 42b of the closing piece portions 41 and 42 of the mounting receiving portion 44 are clamped so as to be in close contact with each other, the second form in which the closing piece portions 41 and 42 are closed is held, and the mounting piece portion 32 is a bracket. It will definitely not come off from 22.

そして、エアバッグ１の前端部の吊り紐26の先端の取付金具26aを、フロントピラー11に取り付ける。また、インフレータ20を図示しないリテーナを用いて車体３に取り付ける。さらに、インフレータ20から導出されたハーネスを車体３に備えた制御装置に接続する。次いで、各ピラー11，12，13にピラーガーニッシュを取り付け、車体３の天井パネルにルーフトリムを取り付け、このルーフトリムでエアバッグ装置２を覆うことにより、図１(b)に示すように、エアバッグ装置２の車体３のルーフサイド部５への取付作業が完了する。 Then, the mounting bracket 26 a at the tip of the hanging strap 26 at the front end of the airbag 1 is attached to the front pillar 11. The inflator 20 is attached to the vehicle body 3 using a retainer (not shown). Further, the harness led out from the inflator 20 is connected to a control device provided in the vehicle body 3. Next, a pillar garnish is attached to each of the pillars 11, 12, and 13, a roof trim is attached to the ceiling panel of the vehicle body 3, and the airbag device 2 is covered with the roof trim, as shown in FIG. The operation of attaching the bag device 2 to the roof side portion 5 of the vehicle body 3 is completed.

次に、エアバッグ１の展開動作を説明する。 Next, the deployment operation of the airbag 1 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20が作動し、このインフレータ20から噴射されるガスがエアバッグ本体部31の膨張部内に導入される。すると、エアバッグ本体部31は、まず、通気抵抗が小さく迅速に展開する形状である波状に折られた案内部52が膨張して、下側に位置する集積部51を下方に押し出す。同時に、プロテクタ24のラッピング片49の先端係合部49aがラッピング片係合受部49bから抜けるようにして外れ、ラッピング片49の保持を解放するとともに、形状保持部材28が開裂し、さらに、ルーフトリムを下方に押し開いて、エアバッグ１のエアバッグ本体部31がルーフサイド部５から下方に迅速に突出する。次いで、若干通気抵抗が大きい形状であるロール状に折りたたまれた集積部51が車室４の側部10内面である所定面14をこすりながら巻き戻されるように所定面14に沿った所定方向である略下方に展開し、図１(b)に破線で示すように、いわば側部10に沿ってカーテン状に膨張展開して、前後の窓部８や各ピラー11，12，13などを覆う。すなわち、第１の気室が前席の乗員の着座位置の側方に対向する領域に迅速に展開し、第２の気室が後席の乗員の着座位置の側方に対向する領域に迅速に展開して、前席及び後席の各乗員の頭部、胸部などを保護するように展開し、乗員を効果的に保護する。 In the event of a side collision or rollover of the vehicle, the inflator 20 is operated by the control device, and the gas injected from the inflator 20 is introduced into the inflating portion of the airbag main body 31. Then, in the airbag main body 31, first, the guide portion 52 that is folded in a wavy shape having a small ventilation resistance and a shape that is rapidly deployed is inflated to push the accumulation portion 51 located on the lower side downward. At the same time, the tip engaging portion 49a of the wrapping piece 49 of the protector 24 comes off from the wrapping piece engagement receiving portion 49b to release the holding of the wrapping piece 49, and the shape holding member 28 is cleaved. The trim is pushed downward to open the airbag body 31 of the airbag 1 quickly from the roof side portion 5 downward. Next, in a predetermined direction along the predetermined surface 14, the stacking portion 51 folded in a roll shape having a slightly large ventilation resistance is rewound while rubbing the predetermined surface 14 which is the inner surface of the side portion 10 of the vehicle interior 4. As shown by a broken line in FIG. 1 (b), it expands and expands like a curtain along the side portion 10, and covers the front and rear window portions 8 and the pillars 11, 12, 13 and the like. . That is, the first air chamber quickly expands in a region facing the side of the seating position of the front seat occupant, and the second air chamber quickly expands in the region facing the side of the seating position of the rear seat occupant. And deployed to protect the head, chest, etc. of each occupant in the front seat and the rear seat, thereby effectively protecting the occupant.

また、このエアバッグ１の展開の際には、プロテクタ24によりエアバッグ１の展開方向が案内される。 When the airbag 1 is deployed, the protector 24 guides the deployment direction of the airbag 1.

このように、本実施の形態によれば、エアバッグ本体部31から突設された取付片部32に連結されたブラケット22を介して、エアバッグ１を車体３のルーフサイドレール5aに取り付けるいわゆるカーテンエアバッグ装置などのエアバッグ装置２であって、折り畳まれた状態のエアバッグ本体部31の反膨出方向を覆うプロテクタ24を備えるとともに、取付片部32を支持するブラケット22のプレート部40とともに取付片部32の全体をプロテクタ24で覆い、ブラケット22の取付受部44をプロテクタ24を突出させ、この取付受部44を車体３に固定する構成とした。そこで、プロテクタ24により折り畳まれた状態のエアバッグ本体部31が保護されるとともに、エアバッグ装置２の組立後、出荷、搬送、及び設置すなわち車両組立などの工程の全てにおいて、プロテクタ24により取付片部32を覆って保護でき、作業者や車体に対して露出することがなく、格別の注意を払うことなくエアバッグ装置２の取扱を容易にできる。例えば、車体３への取り付け作業時に、取付片部32が車体３とブラケット22との間に挟まれるなどの発生を防止でき、作業工程を簡略化して、製造コストを低減できる。 As described above, according to the present embodiment, the airbag 1 is attached to the roof side rail 5a of the vehicle body 3 via the bracket 22 connected to the attachment piece 32 protruding from the airbag body 31. The airbag device 2 such as a curtain airbag device includes a protector 24 that covers the anti-inflated direction of the airbag main body 31 in a folded state, and a plate portion 40 of the bracket 22 that supports the attachment piece 32. At the same time, the entire mounting piece 32 is covered with the protector 24, the mounting receiving portion 44 of the bracket 22 is protruded from the protector 24, and the mounting receiving portion 44 is fixed to the vehicle body 3. Therefore, the airbag main body 31 in a folded state is protected by the protector 24, and the mounting piece is attached by the protector 24 in all processes such as shipping, transporting, and installation, that is, vehicle assembly after the airbag device 2 is assembled. The portion 32 can be covered and protected so that it is not exposed to the operator or the vehicle body, and the airbag device 2 can be handled easily without paying special attention. For example, it is possible to prevent the attachment piece 32 from being sandwiched between the vehicle body 3 and the bracket 22 during the attachment work to the vehicle body 3, simplify the work process, and reduce the manufacturing cost.

また、エアバッグ本体部31と取付片部32とがプロテクタ24の同一側に配置され、いわば一まとめに保護されるため、エアバッグ本体部31と取付片部32との相対的な移動がなく、取付片部32に無用の荷重がかからない。このようにして、エアバッグ１の取付片部32が外部の部材などから影響を受けて正規の状態から外れることを防止でき、エアバッグ装置２の取扱を容易にしつつ、エアバッグ装置２の品質を容易に向上できる。 Further, since the airbag main body 31 and the mounting piece 32 are arranged on the same side of the protector 24 and are protected together, there is no relative movement between the airbag main body 31 and the mounting piece 32. No unnecessary load is applied to the mounting piece 32. In this way, it is possible to prevent the attachment piece 32 of the airbag 1 from being affected by an external member and the like, and to prevent the airbag 1 from being out of the normal state. Can be improved easily.

また、エアバッグ１の取付片部32は、環状をなす環状部33として形成するとともに、ブラケット22は、環状部33に挿入されるプレート部40と、このプレート部40を環状部33に挿入可能な第１の形態と環状部33をプレート部40から抜け止めする第２の形態とに変形可能な一対の閉止片部41，42とを備えた取付受部44とを備えた構成とした。そこで、閉止片部41，42を開いた第１の形態で、ブラケット22のプレート部40の中央部分を取付片部32の環状部33に挿入し、次いで、閉止片部41，42を閉じるように第２の形態に変形させるとの簡単な作業により、取付片部32を抜け止めしてブラケット22に確実に抜け止めでき、エアバッグ１とブラケット22とを作業性良く連結でき、製造コストを低減できる。 Further, the attachment piece 32 of the airbag 1 is formed as an annular portion 33 having an annular shape, and the bracket 22 can be inserted into the annular portion 33 and the plate portion 40 can be inserted into the annular portion 33. And a mounting receiving portion 44 including a pair of closing piece portions 41 and 42 that can be deformed into a first configuration and a second configuration that prevents the annular portion 33 from coming off from the plate portion 40. Therefore, in the first embodiment in which the closing piece portions 41 and 42 are opened, the central portion of the plate portion 40 of the bracket 22 is inserted into the annular portion 33 of the mounting piece portion 32, and then the closing piece portions 41 and 42 are closed. In addition, the mounting piece 32 can be prevented from coming off and securely attached to the bracket 22 by the simple work of deforming to the second form, and the airbag 1 and the bracket 22 can be connected with good workability, thereby reducing the manufacturing cost. Can be reduced.

また、ブラケット22は、１枚の金属板で容易に形成でき、構成を簡略化して製造コストを低減できる。 Further, the bracket 22 can be easily formed with a single metal plate, and the configuration can be simplified to reduce the manufacturing cost.

なお、上記の実施の形態では、エアバッグ１の取付片部32は、全体を環状の環状部33としたが、この構成に限られず、他の構成を採ることができる。また、ブラケット22は、プレート部40の一縁部から一対の閉止片部41，42を変形して開閉させることにより取付片部32を抜け止めする取付受部44を備えたがこの構成に限られず、他の構成を採ることができる。例えば、プレート部40の一縁部から一方の閉止片部41を突設し、プレート部40の他縁部から他方の閉止片部42を突設するとともに、プレート部40を中央部から折曲することもできる。さらに、ブラケット22は、プレート部40から突設したフック状の係合部38をプロテクタ24の係合受部48に圧入して、エアバッグ１をプロテクタ24に位置決めして仮固定したが、他の構成を採ることができる。 In addition, in said embodiment, although the attachment piece part 32 of the airbag 1 made the whole the cyclic | annular annular part 33, it is not restricted to this structure, Other structures can be taken. In addition, the bracket 22 includes an attachment receiving portion 44 that prevents the attachment piece portion 32 from coming off by deforming and opening and closing the pair of closing piece portions 41 and 42 from one edge portion of the plate portion 40, but is not limited to this configuration. However, other configurations can be employed. For example, one closing piece 41 protrudes from one edge of the plate 40, the other closing piece 42 protrudes from the other edge of the plate 40, and the plate 40 is bent from the center. You can also Further, the bracket 22 press-fits a hook-shaped engaging portion 38 projecting from the plate portion 40 into the engaging receiving portion 48 of the protector 24, positions the airbag 1 to the protector 24, and temporarily fixes it. The configuration can be taken.

例えば、図１０及び図１１に示す第２の実施の形態のように、プロテクタ24に形成した開口部としてのスリット47について、円柱状に折り畳んだエアバッグを基準として、長手方向及び第１の方向としての径方向Ｄに開口するのみならず、第２の方向としての周方向Ｃにも所定の長さで開口する矩形状の開口部57とし、プロテクタ24に対してブラケット22の取付受部44を周方向Ｃに相対的に移動可能とすることもできる。 For example, as in the second embodiment shown in FIGS. 10 and 11, the slit 47 as the opening formed in the protector 24 has a longitudinal direction and a first direction on the basis of the airbag folded in a cylindrical shape. A rectangular opening 57 that opens not only in the radial direction D as well as in the circumferential direction C as the second direction but with a predetermined length is provided, and the mounting receiving portion 44 of the bracket 22 with respect to the protector 24 is provided. Can be moved relatively in the circumferential direction C.

また、この構成では、ブラケット22の係合部60は、プレート部40から径方向Ｄに円柱状に突設された軸部60aと、この軸部60aの先端部に軸部60aよりも大きく形成された係止頭部60bとを備えたロックピンとなっている。一方、プロテクタ24の係合受部62は、円孔状の挿入孔部62aと、この挿入孔部62aよりも径寸法の小さい係止孔部62bとが、この係止孔部62bの直径寸法及び軸部60aよりも小さい幅寸法の連通部62cを介して連結された形状に形成されている。また、係止頭部60bの径寸法は、挿入孔部62aの径寸法よりも小さく、かつ、係止孔部62bの径寸法よりも大きく形成されている。 Further, in this configuration, the engaging portion 60 of the bracket 22 is formed to be larger than the shaft portion 60a at the distal end portion of the shaft portion 60a and the shaft portion 60a projecting in a cylindrical shape in the radial direction D from the plate portion 40. The lock pin is provided with a locking head 60b. On the other hand, the engagement receiving portion 62 of the protector 24 includes a circular insertion hole portion 62a and a locking hole portion 62b having a smaller diameter than the insertion hole portion 62a, and the diameter size of the locking hole portion 62b. And it is formed in the shape connected via the communication part 62c of the width dimension smaller than the axial part 60a. The diameter of the locking head 60b is smaller than the diameter of the insertion hole 62a and larger than the diameter of the locking hole 62b.

そこで、この構成では、取付受部44を開口部57に挿入するとともに、ブラケット22の係合部60をプロテクタ24の係合受部62の挿入孔部62aに挿入する。そして、プロテクタ24に対してブラケット22の取付受部44を周方向Ｃに相対的に第１の位置Ｐ1から第２の位置Ｐ2まで移動させ、軸部60aを連通部62cを介して係止孔部62bに圧入することにより、係止頭部60bが係止孔部62bの径方向Ｄの外面側に係止され、いわばバヨネット止めにより、エアバッグ１をプロテクタ24に位置決めして仮固定できる。 Therefore, in this configuration, the attachment receiving portion 44 is inserted into the opening 57, and the engaging portion 60 of the bracket 22 is inserted into the insertion hole portion 62a of the engaging receiving portion 62 of the protector 24. Then, the mounting receiving portion 44 of the bracket 22 is moved relative to the protector 24 in the circumferential direction C from the first position P1 to the second position P2, and the shaft portion 60a is engaged with the locking hole via the communication portion 62c. By press-fitting into the portion 62b, the locking head 60b is locked to the outer surface side in the radial direction D of the locking hole 62b, and the airbag 1 can be positioned and temporarily fixed to the protector 24 by so-called bayonet locking.

このように、プロテクタ24に対してブラケット22の取付受部44を周方向に移動可能とすることにより、係合部60と係合受部62とを係合させる構成として取付作業を容易にできるとともに、エアバッグ１の展開方向の調整作業なども可能になる。 Thus, by making the mounting receiving portion 44 of the bracket 22 movable in the circumferential direction with respect to the protector 24, the mounting work can be facilitated as a configuration in which the engaging portion 60 and the engaging receiving portion 62 are engaged. At the same time, it is possible to adjust the deployment direction of the airbag 1.

さらに、この第２の実施の形態の構成では、開口部57には、長手方向に沿った一縁部、すなわち周方向Ｃの係止孔部62b側の一縁部の中央部分から、反対側である挿入孔部62a側の他縁部に向かい、開口部57の一部、ここでは中央部分を覆うようにして、プロテクタ本体部46に沿って延設片である保護片部64が突設されている。すなわち、この構成では開口部57は浅い略Ｕ字状に形成されている。そして、この保護片部64は、取付受部44を挿入する側とは反対側から突設されており、開口部57に取付受部44を挿入した後、プロテクタ24に対してブラケット22の取付受部44を周方向Ｃに第２の位置Ｐ2まで移動させることにより、第２の形態のブラケット22に形成される開口部分45に保護片部64が挿入される。この状態で、保護片部64は、エアバッグ１の取付片部32と、ブラケット22の取付受部44との間に延在され、取付片部32をブラケット22の取付受部44の開口部分45の上側の縁部と接触しないように保護できる。すなわち、プロテクタ24の開口部57は、ブラケット22を挿入した状態で移動可能とするため大きく開口するが、移動方向に沿って開口部57の内側に保護片部64を突設したため、エアバッグ本体部31及び取付片部32の露出を抑制してエアバッグ１を保護できる。特に、取付片部32の余長部を大きく設定した場合などでも、取付片部32が開口部57からプロテクタ24の外側部46bに突出することを防止して保護できる。 Further, in the configuration of the second embodiment, the opening 57 is provided on one side along the longitudinal direction, that is, on the opposite side from the central portion of one edge on the side of the locking hole 62b in the circumferential direction C. A protective piece 64 that is a piece extending along the protector main body 46 is provided so as to cover a part of the opening 57, here the central portion, toward the other edge of the insertion hole 62a side. Has been. That is, in this configuration, the opening 57 is formed in a shallow substantially U shape. The protective piece 64 is provided so as to protrude from the side opposite to the side on which the mounting receiving portion 44 is inserted. After the mounting receiving portion 44 is inserted into the opening 57, the bracket 22 is attached to the protector 24. By moving the receiving portion 44 in the circumferential direction C to the second position P2, the protective piece portion 64 is inserted into the opening portion 45 formed in the bracket 22 of the second form. In this state, the protection piece portion 64 extends between the attachment piece portion 32 of the airbag 1 and the attachment receiving portion 44 of the bracket 22, and the attachment piece portion 32 serves as an opening portion of the attachment receiving portion 44 of the bracket 22. It can be protected from contact with the upper edge of 45. That is, the opening portion 57 of the protector 24 opens greatly so as to be movable in a state in which the bracket 22 is inserted, but the protective piece 64 protrudes from the inside of the opening portion 57 along the moving direction. The airbag 1 can be protected by suppressing the exposure of the portion 31 and the mounting piece portion 32. In particular, even when the extra length portion of the attachment piece portion 32 is set to be large, the attachment piece portion 32 can be protected from protruding from the opening portion 57 to the outer side portion 46b of the protector 24.

また例えば、図１２に示す第３の実施の形態のように、ブラケット22は、矩形平板状のプレート部40の一側の縁部の中央部分から、１枚の矩形板状の取付受部44を形成した単純な断面Ｌ字状とし、取付受部44に円孔状の取付孔44aを形成するとともに、エアバッグ１の取付片部32は、環状部33を形成せず、取付受部44を挿入可能なスリット状のブラケット挿入部66を設けることもできる。この構成においても、プレート部40を折り畳んだエアバッグ本体部31に沿わせ、取付受部44をブラケット挿入部66に挿入するとともに、この取付受部44を図８などに示すプロテクタ24に挿入することにより、エアバッグ１の取付片部32がプロテクタ24の外部に露出することを防止して、取付片部32を保護できるとともに、構成を簡略化して製造コストを低減できる。 Further, for example, as in the third embodiment shown in FIG. 12, the bracket 22 is attached to a single rectangular plate-shaped attachment receiving portion 44 from the central portion of one side edge portion of the rectangular flat plate-shaped plate portion 40. The mounting section 44 of the airbag 1 does not form the annular portion 33, and the mounting receiving portion 44 is formed in a circular L-shaped mounting hole 44a. It is also possible to provide a slit-like bracket insertion portion 66 into which can be inserted. Also in this configuration, the plate portion 40 is placed along the folded airbag body portion 31, the attachment receiving portion 44 is inserted into the bracket insertion portion 66, and the attachment receiving portion 44 is inserted into the protector 24 shown in FIG. Accordingly, the attachment piece 32 of the airbag 1 can be prevented from being exposed to the outside of the protector 24, and the attachment piece 32 can be protected, and the configuration can be simplified to reduce the manufacturing cost.

さらに、この第３の実施の形態について、ブラケット22をプロテクタ24に位置決めして仮固定あるいは固定などする構成を備えることもできる。 Further, the third embodiment may be configured such that the bracket 22 is positioned on the protector 24 and temporarily fixed or fixed.

例えば、図１３ないし図１７に示す第４の実施の形態のように、ブラケット22のプレート部40の一端部に第１の係合部71を設け、このプレート部40の他端部に第２の係合部72を設けることができる。第１の係合部71は、プレート部40から上側に立ち上げられた第１の立上板部71aと、この第１の立上板部71aからさらに一端側(後方)にプレート部40と平行に延設された第１の平板部71bと、この第１の平板部71bに形成された第１の係止孔71cとを備えている。また、第２の係合部72は、プレート部40から上側に立ち上げられた第２の立上板部72aと、この第２の立上板部72aの幅方向の一部からさらに他端側(前方)にプレート部40と平行に延設された第２の平板部72bと、この第２の平板部72bの先端部に第２の平板部72bよりも幅寸法が大きく形成された係止突片部72cとを備えている。一方、プロテクタ24には、取付受部44が挿入されるスリット47の一端側に位置して、第１の係合受部74が形成され、スリット47の他端側に位置して、第２の係合受部75が形成されている。第１の係合受部74は、プロテクタ24の長手方向に直交する方向である幅方向を長手方向としプロテクタ本体部46を径方向に貫通する開口である第１の開口部74aと、この第１の開口部74aの一端側に位置し径方向に突設された第１の係止突部74bとを備えている。一方、第２の係合受部75は、図１５に示すように、プロテクタ本体部46を径方向に貫通する第２の開口部75aと、この第２の開口部75aに連通するとともに幅方向の両側および径方向の上方が覆われプロテクタ本体部46の外側部で他端側へ開口する第２の係止孔部75bとを備えている。 For example, as in the fourth embodiment shown in FIGS. 13 to 17, a first engagement portion 71 is provided at one end portion of the plate portion 40 of the bracket 22, and a second portion is provided at the other end portion of the plate portion 40. The engaging portion 72 can be provided. The first engaging portion 71 includes a first rising plate portion 71a raised upward from the plate portion 40, and a plate portion 40 further on one end side (rear) from the first rising plate portion 71a. A first flat plate portion 71b extending in parallel and a first locking hole 71c formed in the first flat plate portion 71b are provided. The second engaging portion 72 includes a second rising plate portion 72a raised upward from the plate portion 40, and a second end portion further from a part in the width direction of the second rising plate portion 72a. A second flat plate portion 72b extending in parallel with the plate portion 40 on the side (front), and a width dimension larger than that of the second flat plate portion 72b at the tip of the second flat plate portion 72b And a stop projection piece 72c. On the other hand, the protector 24 is formed with a first engagement receiving portion 74 located on one end side of the slit 47 into which the attachment receiving portion 44 is inserted, and is located on the other end side of the slit 47, and the second The engagement receiving portion 75 is formed. The first engagement receiving portion 74 includes a first opening 74a that is an opening that extends in the radial direction through the protector main body 46 in the width direction, which is a direction perpendicular to the longitudinal direction of the protector 24, and the first opening 74a. And a first locking protrusion 74b that is located on one end side of the one opening 74a and protrudes in the radial direction. On the other hand, as shown in FIG. 15, the second engagement receiving portion 75 communicates with the second opening 75a passing through the protector main body 46 in the radial direction, and the second opening 75a, and in the width direction. And a second locking hole portion 75b that covers the upper side in the radial direction and opens to the other end side at the outer side portion of the protector main body portion 46.

そこで、この構成では、図１３に示すように、エアバッグ１の取付片部32のブラケット挿入部66に、ブラケット22の取付受部44を挿入した状態から、図１６に示すように、プロテクタ24に対してプレート部40を傾斜させた状態で、矢印Ｆ1に示すように、第１の係合部71の第１の平板部71bを第１の係合受部74の第１の開口部74aに挿入する。そして、ブラケット22を一端側に寄せた状態で、矢印Ｆ２に示すように、ブラケット22を回動させる。すると、プレート部40がプロテクタ本体部46の内側部46aの面に沿った状態で、第１の係止孔71cが第１の係止突部74bに挿入されるとともに、第２の係合部72の第２の平板部72bが第２の係合受部75の第２の開口部75aに挿入される。この状態から、図１７に矢印Ｆ3で示すように、ブラケット22を他端側に移動させ、係止突片部72cを第２の係止孔部75bに圧入して係止することにより、いわば行ったり来たり式挿入固定ブラケットとして機能し、図１４に示すように、ブラケット22がプロテクタ24に位置決めして固定される。 Therefore, in this configuration, as shown in FIG. 13, from the state in which the attachment receiving portion 44 of the bracket 22 is inserted into the bracket insertion portion 66 of the attachment piece portion 32 of the airbag 1, as shown in FIG. With the plate portion 40 inclined with respect to the first flat plate portion 71b of the first engagement portion 71, the first opening portion 74a of the first engagement receiving portion 74 is indicated by an arrow F1. Insert into. Then, the bracket 22 is rotated as indicated by an arrow F2 in a state where the bracket 22 is brought close to one end side. Then, the first locking hole 71c is inserted into the first locking protrusion 74b in a state where the plate portion 40 is along the surface of the inner side portion 46a of the protector body 46, and the second engaging portion. The second flat plate portion 72 b of 72 is inserted into the second opening 75 a of the second engagement receiving portion 75. From this state, as shown by an arrow F3 in FIG. 17, the bracket 22 is moved to the other end side, and the locking projection 72c is press-fitted into the second locking hole 75b and locked, so to speak. It functions as a back-and-forth type insertion fixing bracket, and the bracket 22 is positioned and fixed to the protector 24 as shown in FIG.

また、この第４の実施の形態では、ブラケット22の取付受部44の側部の中間位置から下方に向かい仮引掛フック77が一体に突設されている。この仮引掛フック77は、エアバッグ装置２のモジュールを車体３に取り付ける際に、車体３のルーフサイドレール5aなどに設けた小さい孔部に上側から挿入して引っ掛け、エアバッグ装置２を仮保持して取付作業を容易にできるようになっている。 Further, in the fourth embodiment, a temporary hooking hook 77 is integrally protruded downward from an intermediate position of the side portion of the attachment receiving portion 44 of the bracket 22. When the module of the airbag device 2 is attached to the vehicle body 3, this temporary hook 77 is inserted and hooked from above into a small hole provided in the roof side rail 5a of the vehicle body 3 to temporarily hold the airbag device 2. Thus, the mounting work can be easily performed.

なお、上記の各実施の形態において、プロテクタ24は、取付片部32を覆うものであれば、断面半円状の構成に限られず、折り畳んだエアバッグの上側部と車両外側部を覆う断面略Ｌ字状などの形状とすることもできる。 In each of the above-described embodiments, the protector 24 is not limited to a semicircular cross-sectional configuration as long as it covers the attachment piece 32, and a cross-sectional view that covers the upper portion of the folded airbag and the vehicle outer portion is omitted. It can also be L-shaped or the like.

また、本発明は、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、細長く折り畳まれた状態から所定方向に向かい所定面に沿って面状に膨張展開する適宜のエアバッグ装置に適用できる。 In addition, the present invention is not limited to a configuration in which the vehicle is expanded from the upper side to the lower side to cover the side window of the automobile, but is inflated and deployed in a planar shape along a predetermined surface in a predetermined direction from an elongated folded state. The present invention can be applied to an appropriate airbag device.

本発明は、例えば、自動車の側部の窓部に沿ってエアバッグを展開し乗員の頭部を保護す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 device that deploys an airbag along a window on a side portion of an automobile and protects the head of an occupant.

１エアバッグ
２エアバッグ装置
5a 被取付部材としてのルーフサイドレール
22 ブラケット
24 プロテクタ
31 エアバッグ本体部
32 取付片部
33 環状部
40 バッグ支持部及び挿入部としてのプレート部
41，42 抜止部を構成する閉止片部
44 取付受部
57 開口部
64 保護片部
Ａ所定方向としての下方
Ｃ第２の方向としての周方向
Ｄ第１の方向としての径方向
Ｕ反所定方向としての上方 DESCRIPTION OF SYMBOLS 1 Air bag 2 Air bag apparatus
5a Roof side rail as mounted member
22 Bracket
24 Protector
31 Airbag body
32 Mounting piece
33 Annulus
40 Plate part as bag support part and insertion part
41, 42 Closing piece that forms the retaining part
44 Mounting bracket
57 opening
64 Protection piece part A Down as a predetermined direction C Circumferential direction as a second direction D Radial direction as a first direction U Up as an anti-predetermined direction

Claims

An airbag including an airbag main body portion in which gas is introduced from a folded state and inflated in a predetermined direction, and an attachment piece projecting from the airbag main body portion;
A protector that covers at least a part of the airbag body portion in the folded state and the anti-predetermined direction side of the attachment piece portion;
A bag support portion connected to the attachment piece portion at a position covered by the protector, and a bracket provided with an attachment receiving portion protruding from the bag support portion to the outside of the protector and attached to the attached member. An airbag device characterized by that.

The attachment piece portion includes an annular portion forming an annular shape,
The bracket has an insertion part that is inserted into the annular part, a first form that allows the insertion part to be inserted into the annular part, and a second form that prevents the annular part from coming out of the insertion part. The airbag device according to claim 1, further comprising: a portion.

The protector
An opening that is movable in a second direction that intersects the first direction with the bracket inserted along the first direction and inserted;
The airbag device according to claim 1, further comprising: a protective piece projecting from the opening along the second direction.