JP5319414B2 - Airbag cover body and airbag device - Google Patents

Airbag cover body and airbag device Download PDF

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JP5319414B2
JP5319414B2 JP2009147025A JP2009147025A JP5319414B2 JP 5319414 B2 JP5319414 B2 JP 5319414B2 JP 2009147025 A JP2009147025 A JP 2009147025A JP 2009147025 A JP2009147025 A JP 2009147025A JP 5319414 B2 JP5319414 B2 JP 5319414B2
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airbag
door
cover body
attachment
edge
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JP2011001010A (en
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大英 殿岡
史治 落合
陽平 木内
高志 植田
勝 森竹
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Honda Motor Co Ltd
Nihon Plast Co Ltd
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Honda Motor Co Ltd
Nihon Plast Co Ltd
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Description

本発明は、例えば、自動車の座席の側方にエアバッグを膨張展開するエアバッグのカバー体及びエアバッグ装置に関する。   The present invention relates to an airbag cover body and an airbag apparatus that inflate and deploy an airbag to the side of a seat of an automobile, for example.

従来、自動車の座席の側方にエアバッグを膨張展開し、側面衝突時に乗員を保護するエアバッグ装置が知られている。さらに、このようなエアバッグ装置について、車室の側部のドア部にエアバッグを折り畳んで収納し、このドア部からエアバッグを上方に膨張展開して、乗員の頭部などを保護する構成が知られている（例えば、特許文献１参照。）。この特許文献１には、エアバッグ及びインフレータなどをドア部のインナパネルに組み付けた後、これら部材とインナパネルとを覆うようにしてドアパネルが取り付けられる構成が示されている。そして、この構成では、折り畳んだエアバッグの上側を覆い、ドアパネルと一体あるいは別体の蓋部を備えている。この蓋部は、車室側の側部である基端部に沿ってヒンジ部が設けられているとともに、車外側の側部である先端部は自由端となり、エアバッグの展開時にヒンジ部を支点として上側に回動するようになっている。   2. Description of the Related Art Conventionally, an airbag device that inflates and deploys an airbag to the side of a seat of an automobile and protects an occupant at a side collision is known. Further, with respect to such an airbag device, the airbag is folded and stored in the door portion on the side of the passenger compartment, and the airbag is inflated and deployed upward from the door portion to protect the head of the occupant and the like. Is known (for example, see Patent Document 1). This Patent Document 1 shows a configuration in which an air bag, an inflator, and the like are assembled to an inner panel of a door portion, and then the door panel is attached so as to cover these members and the inner panel. And in this structure, the upper side of the folded airbag is covered, and the cover part which is integral with or separate from the door panel is provided. The lid portion is provided with a hinge portion along a base end portion which is a side portion on the vehicle compartment side, and a distal end portion which is a side portion on the outer side of the vehicle is a free end, and the hinge portion is provided when the airbag is deployed. It is designed to pivot upward as a fulcrum.

しかしながら、この構成では、蓋部の先端部側が固定されていないため、乗員などから蓋部に下方に押圧しあるいは上方に引き上げるような力が加わったさいに、蓋部が安定せず外観が悪化しやすい。   However, in this configuration, since the front end portion side of the lid portion is not fixed, the lid portion is not stabilized and the appearance is deteriorated when a force is applied to the lid portion from the occupant or the like to the lid portion to be pushed downward or pulled upward. It's easy to do.

ここで、蓋部の先端部側から下方にリブを突設し、このリブの先端部を他の部材に固定するとともに、このリブの中間位置にエアバッグの展開時に破断するテアラインを形成する構成が考えられる。しかしながら、この構成では、展開過程のエアバッグから蓋部のリブ及び蓋部の先端部に力が加わり、さらに、蓋部の先端部とリブのテアラインが破断した部分との間の空間部にエアバッグが入り込むと、蓋部に大きな力が加わるため、蓋部の各部の剛性を高める必要があり、製造コストの低減が容易でない。   Here, a rib protrudes downward from the front end side of the lid, and the front end of the rib is fixed to another member, and a tear line is formed at an intermediate position of the rib to break when the airbag is deployed. Can be considered. However, in this configuration, force is applied from the airbag in the deployment process to the rib of the lid and the tip of the lid, and further, air is introduced into the space between the tip of the lid and the portion where the tear line of the rib is broken. When the bag enters, a large force is applied to the lid portion, so it is necessary to increase the rigidity of each portion of the lid portion, and it is not easy to reduce the manufacturing cost.

特開２００６−８８７３１号公報 （図１−４）JP 2006-88731 A (FIGS. 1-4)

上記のように、蓋部の先端部側が固定されない構成では、外部から力が加わった際に蓋部が安定せず外観が悪化しやすい。また、仮に、蓋部の先端部側にリブを設けてこのリブを他の部材に固定する構成とすると、エアバッグの展開時に蓋部のリブや先端部に大きな力が加わる可能性があり、蓋部の各部の剛性を高める必要が生じ、製造コストの低減が容易でない。   As described above, in the configuration in which the distal end side of the lid portion is not fixed, the lid portion is not stable when external force is applied, and the appearance is likely to deteriorate. In addition, if a rib is provided on the tip side of the lid and this rib is fixed to another member, a large force may be applied to the rib or tip of the lid when the airbag is deployed. It is necessary to increase the rigidity of each part of the lid, and it is not easy to reduce the manufacturing cost.

本発明は、このような点に鑑みなされたもので、エアバッグを覆うカバー体を安定して支持できるとともにエアバッグの展開時にも容易にカバー体を保護できるエアバッグのカバー体及び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 is capable of stably supporting a cover body covering an airbag and easily protecting the cover body even when the airbag is deployed, and an airbag apparatus. The purpose is to provide.

請求項１記載のエアバッグのカバー体は、取付体に取り付けられるとともにガスが導入されて展開するエアバッグを覆うエアバッグのカバー体であって、前記エアバッグの展開方向を覆う扉部と、前記取付体に取り付けられる取付部と、この取付部と前記扉部の一側部とを変形可能に連結するヒンジ部と、前記扉部の他側部の縁部に設けられた縁片部と、前記扉部の他側部の縁部近傍かつ前記縁片部から離間した位置から突設され前記取付体に取り付けられる支持部と、この支持部に設けられ前記エアバッグの展開時の圧力で破断する破断予定部と、この破断予定部の前記扉部側の縁部と前記縁片部の先端部との間に位置し、前記縁片部の先端部に沿って先端部が当接して展開する前記エアバッグを案内する案内部とを具備するものである。 The airbag cover body according to claim 1 is an airbag cover body that covers the airbag that is attached to the mounting body and that is introduced by gas and deployed, and a door portion that covers a deployment direction of the airbag; An attachment portion attached to the attachment body, a hinge portion that connects the attachment portion and one side portion of the door portion in a deformable manner, and an edge piece provided on an edge portion of the other side portion of the door portion; A support portion protruding from a position near the edge of the other side portion of the door portion and spaced from the edge piece portion and attached to the attachment body, and a pressure provided at the support portion when the airbag is deployed. It is located between the planned fracture part to be broken, the edge part on the door part side of the planned fracture part and the tip part of the edge piece part, and the tip part abuts along the tip part of the edge piece part. And a guide unit for guiding the airbag to be deployed.

請求項２記載のエアバッグのカバー体は、請求項１記載のエアバッグのカバー体において、案内部は座屈可能な衝撃吸収部を構成するものである。 The airbag cover body according to claim 2 is the airbag cover body according to claim 1, wherein the guide portion constitutes an impact absorbing portion capable of buckling .

請求項３記載のエアバッグのカバー体は、取付体に取り付けられるとともにガスが導入されて展開するエアバッグを覆うエアバッグのカバー体であって、前記エアバッグの展開方向を覆う扉部と、前記取付体に取り付けられる取付部と、この取付部と前記扉部の一側部とを変形可能に連結するヒンジ部と、前記扉部の他側部の縁部に設けられた縁片部と、前記扉部の他側部の縁部近傍かつ前記縁片部から離間した位置から突設され前記取付体に取り付けられる支持部と、この支持部に設けられ前記エアバッグの展開時の圧力で破断する破断予定部と、この破断予定部の前記扉部側の縁部と前記縁片部の先端部との間に位置し展開する前記エアバッグを案内するとともに、座屈可能な衝撃吸収部を構成する案内部とを具備するものである。 The airbag cover body according to claim 3 is an airbag cover body that covers the airbag that is attached to the mounting body and that is introduced by gas and is deployed, and a door portion that covers a deployment direction of the airbag; An attachment portion attached to the attachment body, a hinge portion that connects the attachment portion and one side portion of the door portion in a deformable manner, and an edge piece provided on an edge portion of the other side portion of the door portion; A support portion protruding from a position near the edge of the other side portion of the door portion and spaced from the edge piece portion and attached to the attachment body, and a pressure provided at the support portion when the airbag is deployed. An expected to break part to be broken, and an impact absorbing part that can be buckled and guides the airbag located between the edge part of the door part side of the scheduled break part and the tip part of the edge piece part. The guide part which comprises .

請求項４記載のエアバッグのカバー体は、請求項１ないし３いずれか一記載のエアバッグのカバー体において、扉部を構成するインナ扉部及び取付部を構成するインナ取付部を備えるとともに、これらインナ扉部とインナ取付部とを変形可能に連結しヒンジ部を構成するインナヒンジ部、及び支持部を構成する支持片部及び案内部を構成する案内片部を備えたインナ部と、前記インナ扉部の表面側を覆って固着され扉部を構成するアウタ扉部、及び前記インナ取付部の表面側を覆って固着され取付部を構成するアウタ取付部を備えるとともに、前記アウタ扉部の縁部から突設され縁片部を構成するアウタ縁片部を備えたアウタ部とを具備するものである。 The airbag cover body according to claim 4 is the airbag cover body according to any one of claims 1 to 3, comprising an inner door portion constituting the door portion and an inner attachment portion constituting the attachment portion, The inner door portion and the inner mounting portion that are deformably connected to form an hinge portion, an inner hinge portion that constitutes a support portion, an inner portion that includes a guide piece portion that constitutes a support piece portion and a guide portion, and the inner portion An outer door portion that covers and adheres to the front surface side of the door portion, and an outer attachment portion that covers the surface side of the inner mounting portion and forms an attachment portion; and an edge of the outer door portion And an outer portion provided with an outer edge piece portion that protrudes from the portion and constitutes an edge piece portion .

請求項５記載のエアバッグ装置は、車室のドア部に折り畳んで収納されガスが導入されてこの車室の側面部を構成する窓部に沿って上方に展開するエアバッグと、このエアバッグにガスを供給するインフレータと、前記エアバッグを覆う請求項１ないし４いずれか一記載のカバー体と、このカバー体の取付部及び支持部、前記エアバッグ、及び前記インフレータが取り付けられるとともに、前記ドア部の部材に取り付けられる取付体とを具備し、アウタ部は、樹脂にて形成されて前記ドア部の内装材を構成し、インナ部は、前記アウタ部より軟質で変形可能な樹脂にて形成されたものである。The airbag apparatus according to claim 5 is an airbag that is folded and stored in a door portion of a passenger compartment and into which gas is introduced to expand upward along a window portion that constitutes a side portion of the passenger compartment, and the airbag. An inflator that supplies gas to the cover, a cover body according to any one of claims 1 to 4 that covers the airbag, an attachment portion and a support portion of the cover body, the airbag, and the inflator are attached, And an outer part formed of resin to form an interior material of the door part, and an inner part made of resin that is softer and deformable than the outer part. It is formed.

請求項１記載のエアバッグのカバー体によれば、カバー体に覆われたエアバッグにガスを供給することにより、支持部の破断予定部を破断し、ヒンジ部を支点として扉部を開き、エアバッグを展開させることができる。支持部により扉部の他側部を支持し、カバー体を安定して支持でき、カバー体の外観を向上できる。扉部の他側部には、縁片部を設けたとともに、破断予定部を設けた支持部は縁片部から離間した位置に突設したため、外観を向上できるとともに、破断の特性を自由に設定でき、扉部を円滑に開くことができる。展開するエアバッグを先端部が縁片部の先端部に沿って当接する案内部で案内することにより、このエアバッグと、破断予定部の縁部と縁片部の先端部との間の空間及び縁片部の先端部との干渉を抑制し、カバー体を保護しつつエアバッグを円滑に展開できる。 According to the airbag cover body of claim 1, by supplying gas to the airbag covered by the cover body, the fracture portion of the support portion is broken, and the door portion is opened with the hinge portion as a fulcrum, The airbag can be deployed. The other side part of the door part is supported by the support part, the cover body can be stably supported, and the appearance of the cover body can be improved. On the other side of the door part, an edge piece is provided, and the support part provided with the planned breaking part protrudes at a position away from the edge piece, so that the appearance can be improved and the breaking characteristics can be freely set. It can be set and the door can be opened smoothly. A space between the airbag and the edge of the planned breakage and the edge of the edge piece by guiding the airbag to be deployed with a guide portion whose tip is in contact with the edge of the edge piece. In addition, the airbag can be smoothly deployed while suppressing the interference with the tip of the edge piece and protecting the cover body.

請求項２記載のエアバッグのカバー体によれば、請求項１記載の効果に加え、案内部が座屈可能な衝撃吸収部を構成するため、カバー体の衝撃吸収特性を容易に向上でき、カバー体に当接した被保護物を容易に保護できる。 According to the airbag cover body of claim 2, in addition to the effect of claim 1 , since the guide portion constitutes an impact absorbing portion capable of buckling, the impact absorbing characteristics of the cover body can be easily improved, The protected object that is in contact with the cover body can be easily protected .

請求項３記載のエアバッグのカバー体によれば、カバー体に覆われたエアバッグにガスを供給することにより、支持部の破断予定部を破断し、ヒンジ部を支点として扉部を開き、エアバッグを展開させることができる。支持部により扉部の他側部を支持し、カバー体を安定して支持でき、カバー体の外観を向上できる。扉部の他側部には、縁片部を設けたとともに、破断予定部を設けた支持部は縁片部から離間した位置に突設したため、外観を向上できるとともに、破断の特性を自由に設定でき、扉部を円滑に開くことができる。展開するエアバッグを案内部で案内することにより、このエアバッグと、破断予定部の縁部と縁片部の先端部との間の空間及び縁片部の先端部との干渉を抑制し、カバー体を保護しつつエアバッグを円滑に展開できる。また、案内部が座屈可能な衝撃吸収部を構成するため、カバー体の衝撃吸収特性を容易に向上でき、カバー体に当接した被保護物を容易に保護できる。 According to the airbag cover body according to claim 3, by supplying gas to the airbag covered by the cover body, the fracture portion of the support portion is broken, and the door portion is opened with the hinge portion as a fulcrum, The airbag can be deployed. The other side part of the door part is supported by the support part, the cover body can be stably supported, and the appearance of the cover body can be improved. On the other side of the door part, an edge piece is provided, and the support part provided with the planned breaking part protrudes at a position away from the edge piece, so that the appearance can be improved and the breaking characteristics can be freely set. It can be set and the door can be opened smoothly. By guiding the airbag to be deployed with the guide portion, the interference between the airbag and the space between the edge portion of the planned break portion and the tip portion of the edge piece portion and the tip portion of the edge piece portion is suppressed, The airbag can be smoothly deployed while protecting the cover body. Moreover, since the guide part constitutes an impact absorbing part capable of buckling, the impact absorbing characteristic of the cover body can be easily improved, and the protected object in contact with the cover body can be easily protected .

請求項４記載のエアバッグのカバー体によれば、請求項１ないし３いずれか一記載の効果に加え、ヒンジ部、破断予定部を設けた支持部、及び案内部をインナ部で構成し、このインナ部の表面側をアウタ部で覆ったため、ヒンジ部が変形する特性や破断予定部が破断する特性を良好にしつつ、外観を向上できる。 According to the airbag cover body of claim 4, in addition to the effect of any one of claims 1 to 3, the hinge part, the support part provided with the part to be broken, and the guide part are constituted by the inner part, Since the inner surface of the inner part is covered with the outer part, the appearance can be improved while improving the characteristics of the hinge part to be deformed and the part to be ruptured to break .

請求項５記載のエアバッグ装置によれば、請求項１ないし４いずれか一記載のカバー体を備えたため、外観の良い車室のドア部の内装材として機能するとともにエアバッグを円滑に展開して乗員の側部を保護できるエアバッグ装置を提供できる。取付体に、カバー体、エアバッグ、及びインフレータを取り付けたため、エアバッグ装置をユニット化でき、車体へ容易に装着できる。According to the airbag device of the fifth aspect, since the cover body according to any one of the first to fourth aspects is provided, the airbag device functions smoothly as an interior material of the door portion of the vehicle compartment having a good appearance, and the airbag is smoothly deployed. Thus, it is possible to provide an airbag device that can protect the side of the occupant. Since the cover body, the airbag, and the inflator are attached to the attachment body, the airbag device can be unitized and can be easily attached to the vehicle body.

本発明のエアバッグ装置の一実施の形態を示す断面図である。It is sectional drawing which shows one Embodiment of the airbag apparatus of this invention. 同上エアバッグ装置を備えたドア部の説明図であり、(a)はエアバッグの展開前の状態、(b)はエアバッグの展開時の状態である。It is explanatory drawing of the door part provided with the airbag apparatus same as the above, (a) is the state before deployment of an airbag, (b) is the state at the time of deployment of an airbag. 同上エアバッグ装置のカバー体のインナ部を示す斜視図である。It is a perspective view which shows the inner part of the cover body of an airbag apparatus same as the above. 同上インナ部を示す図３のＩ−Ｉ断面図である。It is II sectional drawing of FIG. 3 which shows an inner part same as the above. 同上エアバッグ装置のカバー体の動作を示す説明図であり、(a)はエアバッグの展開前の状態、(b)はエアバッグの展開時の状態である。It is explanatory drawing which shows operation | movement of the cover body of an airbag apparatus same as the above, (a) is the state before deployment of an airbag, (b) is the state at the time of deployment of an airbag.

以下、本発明のエアバッグのカバー体及び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。   DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of an airbag cover body and an airbag apparatus according to the invention will be described with reference to the drawings.

図１及び図２において、１は自動車の車体を構成するドア部であり、このドア部１は、車室２に設けられた図示しない座席の側方に位置している。なお、以下、方向については、車両である自動車の直進方向を基準とし、所定方向としての上方（図１及び図２に示す矢印Ｕ方向）、ドア部１側から車室２の中央側に向かう方向である車室内側方（図１に示す矢印Ｃ方向）、車室２の中央側からドア部１側に向かう方向である車室外側方（図１に示す矢印Ｄ方向）、及び前方（図２に示す矢印Ｆ方向）などの方向を説明する。   In FIGS. 1 and 2, reference numeral 1 denotes a door portion constituting a vehicle body of the automobile, and the door portion 1 is located on the side of a seat (not shown) provided in the passenger compartment 2. In addition, hereinafter, the direction is based on the straight direction of the automobile as a vehicle, and as a predetermined direction (in the direction of arrow U shown in FIGS. 1 and 2), from the door portion 1 side toward the center side of the passenger compartment 2. The vehicle interior side direction (direction of arrow C shown in FIG. 1), the vehicle interior side direction (arrow D direction shown in FIG. 1), which is the direction from the center side of the vehicle compartment 2 toward the door portion 1 side, and the front ( A direction such as an arrow F direction in FIG. 2 will be described.

そして、このドア部１は、図２に示すように、ドア部１の全体を囲む枠状のフレーム11を備え、このフレーム11に囲まれた部分の下側部がドア本体部12となり、このフレーム11に囲まれた部分の上側部の開口が、ウインドシールドでありサイドガラスあるいはサイドウィンドウガラスと呼ばれる窓ガラス14により開閉される。そして、この窓ガラス14及び窓ガラス14により開閉される開口の部分が、所定面であり側面部を構成する窓部15となっている。そして、ドア本体部12は、金属板などから形成された被取付部材である部材としてのインナパネル16と、このインナパネル16の車室外側方に離間して位置する金属板などから形成されたアウタパネル17とを備えている。そして、インナパネル16の車室内側方は、一部が樹脂などにて形成された内装材である主ドアトリム18で覆われているとともに、上側部の後部の一部がエアバッグ装置21を構成するとともに内装材であるカバー体22で覆われている。なお、図１において、24は、窓ガラス14、インナパネル16、アウタパネル17、及びエアバッグ装置21のカバー体22に密着するウェザーストリップなどとも呼ばれるシール部材である。   As shown in FIG. 2, the door portion 1 includes a frame-like frame 11 that surrounds the entire door portion 1, and a lower portion of the portion surrounded by the frame 11 becomes a door main body portion 12. The opening on the upper side of the part surrounded by the frame 11 is a windshield and is opened and closed by a window glass 14 called a side glass or side window glass. The window glass 14 and a portion of the opening that is opened and closed by the window glass 14 is a window portion 15 that is a predetermined surface and constitutes a side surface portion. The door body 12 is formed of an inner panel 16 as a member to be attached formed of a metal plate or the like, and a metal plate or the like that is spaced apart from the inner panel 16 on the outer side of the passenger compartment. And an outer panel 17. The inner side of the inner panel 16 is covered with a main door trim 18 that is an interior material partly formed of resin or the like, and a part of the rear part of the upper part constitutes the airbag device 21. In addition, it is covered with a cover body 22 that is an interior material. In FIG. 1, reference numeral 24 denotes a sealing member called a weather strip or the like that is in close contact with the window glass 14, the inner panel 16, the outer panel 17, and the cover body 22 of the airbag device 21.

そして、エアバッグ装置21は、乗員保護装置であり、主として側面衝突時あるいは横転時などに被保護物としての乗員の頭部を保護するいわゆるドアマウントエアバッグで、カバー体22に加え、袋状をなすエアバッグ31と、このエアバッグ31にガスを供給するガス発生装置である図示しないインフレータと、これらカバー体22、エアバッグ31、及びインフレータが取り付けられる取付体34とを備え、これら部材を組み合わせて、エアバッグモジュールであるエアバッグ装置21が構成されている。さらに、このエアバッグ装置21には、図示しないハーネスを介して、制御装置が接続されている。   The airbag device 21 is an occupant protection device, which is a so-called door-mounted airbag that mainly protects the occupant's head as a protected object in a side collision or rollover. And an inflator (not shown) that is a gas generator that supplies gas to the airbag 31, and a cover body 22, the airbag 31, and a mounting body 34 to which the inflator is attached. In combination, an airbag device 21 which is an airbag module is configured. Further, a control device is connected to the airbag device 21 via a harness (not shown).

そして、エアバッグ31は、単数あるいは複数の基布を縫い合わせて袋状としたもので、例えば、２枚の略同形状の基布であるメインパネルの外周部同士を縫い合わせて、扁平な袋状に構成されている。そして、通常時は、ロール状及び蛇腹状などの所定の方法により小さく折り畳まれている。   The airbag 31 is formed into a bag shape by sewing one or a plurality of base fabrics, for example, by sewing the outer peripheral portions of the main panel, which are two substantially identical base fabrics, into a flat bag shape It is configured. And normally, it is folded small by predetermined methods, such as roll shape and bellows shape.

また、インフレータは、略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の一端側にガス噴射部が設けられているとともに、他端部にコネクタが設けられ、このコネクタにハーネスが接続されている。そして、このインフレータは、ハーネスを介して制御装置から点火信号が流れることにより、内部に充填した推進薬を反応させ、あるいは内部のボンベに貯留したガスを開放などして、ガス噴射部からガスを噴射し、直接的にあるいはパイプを介してエアバッグ31にガスを供給する。   The inflator includes a substantially cylindrical inflator body, a gas injection part is provided at one end of the inflator body, a connector is provided at the other end, and a harness is connected to the connector. Yes. Then, this inflator causes the propellant filled inside to react or release the gas stored in the internal cylinder to cause the gas from the gas injection part to flow when an ignition signal flows from the control device via the harness. It injects and supplies gas to the airbag 31 directly or through a pipe.

また、取付体34は、例えば金属により一体あるいは複数の部材を組み合わせて構成され、本実施の形態では、それぞれ金属板で形成された第１及び第２のプレート41，42を互いに接合し、全体として断面略Ｙ字状に形成されている。そして、この実施の形態では、第１のプレート41は、第２のプレート42の車室２側に位置し、かつ第２のプレート42よりも下側に延設され、第１のプレート41の中間位置に第２のプレート42の下端部が溶接などして接合されている。そして、第１のプレート41の下側に突出した部分には、下側部に円孔43aを有する車体取付部43が形成されている。そして、この車体取付部43の上側部の第１のプレート41と第２のプレート42との間に、上側を開口した収納部44が構成され、この収納部44に折り畳んだエアバッグ31及びインフレータなどが収納されている。   In addition, the attachment body 34 is formed of, for example, a single metal or a combination of a plurality of members. In the present embodiment, the first and second plates 41 and 42 each formed of a metal plate are joined together, As shown in FIG. In this embodiment, the first plate 41 is positioned on the vehicle compartment 2 side of the second plate 42 and extends below the second plate 42. The lower end portion of the second plate 42 is joined to the intermediate position by welding or the like. A vehicle body attachment portion 43 having a circular hole 43a on the lower side portion is formed in a portion protruding downward from the first plate 41. A storage portion 44 having an upper opening is formed between the first plate 41 and the second plate 42 on the upper portion of the vehicle body attachment portion 43, and the airbag 31 and the inflator folded on the storage portion 44 are formed. Etc. are stored.

そして、車体取付部43の上側に位置する第２のプレート42の上側部には、円孔を有する複数の取付固定受部45が形成されているとともに、これら取付固定受部45同士の間に位置して、上端部である先端部が外側に折り返され、プレート補強部46が形成されている。   A plurality of mounting / fixing receiving portions 45 having circular holes are formed on the upper portion of the second plate 42 located on the upper side of the vehicle body mounting portion 43, and between these mounting / fixing receiving portions 45. Positioned, the tip portion, which is the upper end portion, is folded outward to form a plate reinforcing portion 46.

また、車体取付部43の上側に位置する第１のプレート41には、上端部である先端部から、複数のカバー係止部48が一体に突設されている。これらカバー係止部48は、外側さらには下側に突設された断面略Ｌ字状の爪すなわちフック状をなしている。さらに、この第１のプレート41には、カバー係止部48の下方に位置して、円孔を有する複数のカバー固定受部49が切り起こしなどして形成されている。   In addition, a plurality of cover locking portions 48 are integrally provided on the first plate 41 located on the upper side of the vehicle body attachment portion 43 from the tip portion which is the upper end portion. These cover locking portions 48 are formed as claws, that is, hooks having a substantially L-shaped cross section projecting outward and further downward. Further, a plurality of cover fixing receiving portions 49 having circular holes are formed on the first plate 41 by being cut and raised, for example, located below the cover locking portion 48.

そして、取付体34は、車体取付部43の円孔43aに、ボルト、リベット、あるいはビスなどの固定具51を挿入して車体取付部43がインナパネル16に取り付けて固定され、ドア部１に支持される。また、後述するように、取付体34の上側の取付固定受部45及びカバー固定受部49は、それぞれ、ボルト、リベット、あるいはビスなどの固定具52，53によりカバー体22に取り付けて固定され、カバー係止部48は、カバー体22に係止して取り付けられている。   The mounting body 34 is fixed to the door portion 1 by inserting a fixing tool 51 such as a bolt, a rivet or a screw into the circular hole 43a of the vehicle body mounting portion 43, and the vehicle body mounting portion 43 is fixed to the inner panel 16. Supported. Further, as will be described later, the attachment fixing receiving portion 45 and the cover fixing receiving portion 49 on the upper side of the attachment body 34 are attached and fixed to the cover body 22 by fixing members 52 and 53 such as bolts, rivets, or screws, respectively. The cover locking portion 48 is locked and attached to the cover body 22.

そして、カバー体22は、エアバッグドアパネルあるいはエアバッグ用リッドなどとも呼ばれるもので、表面側すなわち車室２側に露出する樹脂製のアウタ部61と、このアウタ部61の背面側すなわち裏面側に振動溶着などで取り付けられた樹脂製のインナ部62とを積層した積層体として構成され、取付体34にエアバッグ31などを組み付けたモジュールの上方及び乗員に対向する車室内側方などを覆うようになっている。   The cover body 22 is also referred to as an airbag door panel or an airbag lid, and the resin outer portion 61 exposed on the front surface side, that is, the vehicle compartment 2 side, and the back surface side, that is, the back surface side of the outer portion 61. It is configured as a laminated body with the resin inner part 62 attached by vibration welding or the like, and covers the upper side of the module in which the airbag 31 or the like is assembled to the attachment body 34 and the side of the passenger compartment facing the passenger. It has become.

そして、アウタ部61は、主ドアトリム18と連続的な形状に形成され、主ドアトリム18とともにドア本体部12を覆う内装材を構成するいわばシームレスパネルであり、ドア本体部12の上側を覆う上面パネル部64と、この上面パネル部64の車室内側方の縁部に連続し、下方に延設された側面パネル部65と、上面パネル部64の車室外側方の縁部に連続し、下方に向かって側面パネル部65より短く延設されたアウタ縁片部である縁片部66と、これら上面パネル部64、側面パネル部65、及び縁片部66の後側の縁部に連続して後面を覆う一体あるいは別体に形成された図示しない端部パネル部とを備えている。そして、上面パネル部64は、ドア部１の意匠に応じて平面状あるいは曲面状などに形成され、本実施の形態では、車室外側方に向かって若干上方に向かう傾斜面状に形成され、ドア部１のシール部材24などが車室２の車室内側方すなわち乗員側から見えないように覆っている。また、側面パネル部65は、主ドアトリム18の形状に応じて曲面状に形成され、下側の縁部には、主ドアトリム18に係合して連結されるトリム連接部69が形成されているとともに、図２に示すように、下側の一部にエンブレム取付部70が設けられ、このエンブレム取付部70に、エンブレム71が取り付けられている。また、縁片部66は、巻き込み部とも呼ばれるもので、裏面側すなわち下方に向いてほぼ垂直状に延設されていわばアンダー形状となり、シール部材24などが車室２側から見えないようにして外観を向上するため上面パネル部64の高さ位置を高く設定した構成において、ドア部１の内部が車室外側方などからも露出しないように覆い、外観を向上しているとともに、シール部材24に密着し、ドア部１の内側に雨水などが浸入しないようにしている。また、後側パネル部は、リッドカバーとも呼ばれるもので、ハーネスなどを挿通させる後側キャップ部が設けられている。   The outer portion 61 is a so-called seamless panel that is formed in a continuous shape with the main door trim 18 and constitutes an interior material that covers the door main body 12 together with the main door trim 18, and is an upper surface panel that covers the upper side of the door main body 12 Part 64, continuous to the edge of the upper surface panel 64 on the side of the passenger compartment, side panel 65 extended downward, and continuous to the edge of the upper surface panel 64 on the outer side of the passenger compartment. An edge piece 66 which is an outer edge piece extending to be shorter than the side panel 65, and the upper side panel 64, the side panel 65, and the rear edge of the edge piece 66. And an end panel portion (not shown) formed integrally or separately to cover the rear surface. Then, the upper panel portion 64 is formed in a flat shape or a curved shape according to the design of the door portion 1, and in the present embodiment, it is formed in an inclined surface shape slightly upward toward the outer side of the passenger compartment, The sealing member 24 and the like of the door portion 1 are covered so as not to be seen from the side of the passenger compartment 2 of the passenger compartment 2, that is, from the passenger side. The side panel portion 65 is formed in a curved shape according to the shape of the main door trim 18, and a trim connecting portion 69 that is engaged with and connected to the main door trim 18 is formed on the lower edge portion. In addition, as shown in FIG. 2, an emblem mounting portion 70 is provided at a part of the lower side, and an emblem 71 is attached to the emblem mounting portion 70. Further, the edge piece 66 is also referred to as an entrainment portion, and is formed in an under shape so as to extend substantially vertically toward the back side, that is, downward, so that the seal member 24 and the like cannot be seen from the vehicle compartment 2 side. In the configuration in which the height position of the upper panel portion 64 is set high in order to improve the appearance, the inside of the door portion 1 is covered so as not to be exposed even from the outside of the passenger compartment, and the appearance is improved, and the sealing member 24 The rain water or the like does not enter inside the door portion 1. The rear panel portion is also called a lid cover, and is provided with a rear cap portion through which a harness or the like is inserted.

そして、このアウタ部61には、図２などに示すように、主として上面パネル部64に区画部72が形成され、この区画部72により区画された内側に、扉部73を構成するアウタ扉部74が形成されている。そして、区画部72は、リッドテアラインとも呼び得る薄肉部である弱部であり、上面パネル部64の車室内側方の側面パネル部65との接続部分あるいは接続部分の近傍に沿ってカバー体22の長手方向である前後方向に延びる長辺部72aと、この長辺部72aの前後の端部から車室外側方に延びて縁片部66の縁部に至る短辺部72bとを備えた平面略コの字状に形成されている。そして、この区画部72は、アウタ部61の上面パネル部64及び縁片部66の裏面側が切削などして凹設されて他の部分より脆弱に形成され、破断するテアラインあるいは容易に屈曲するヒンジとして機能する。すなわち、この区画部72は、エアバッグ31が膨張展開する圧力により一部あるいは全部が開裂すなわち破断し、通常は短辺部72bの部分がアウタ破断部として破断し、破断しなかった長辺部72aは容易に変形して屈曲するヒンジ部として機能する。そして、区画部72の外側は、上面パネル部64から側面パネル部65にかけて、エアバッグ31の膨張展開時にも展開しない非展開部であり、アウタ取付部を構成するアウタ本体部75となっている。   In the outer portion 61, as shown in FIG. 2 and the like, a partition portion 72 is mainly formed in the upper surface panel portion 64, and an outer door portion constituting a door portion 73 is defined inside the partition portion 72. 74 is formed. The partition portion 72 is a weak portion that is a thin portion that can also be called a lid tear line, and is a cover body along the connection portion with the side panel portion 65 on the side of the vehicle interior of the top panel portion 64 or in the vicinity of the connection portion. 22 has a long side portion 72a extending in the front-rear direction, which is the longitudinal direction of the long side portion 72, and a short side portion 72b extending from the front and rear ends of the long side portion 72a to the outer side of the passenger compartment and reaching the edge portion of the edge piece portion 66. It is formed in a substantially U shape. The partition portion 72 has a rear line side of the upper surface panel portion 64 and the edge piece portion 66 of the outer portion 61, which is recessed by cutting or the like, and is made weaker than other portions. Function as. That is, the partition part 72 is partly or entirely cleaved or broken by the pressure at which the airbag 31 is inflated and deployed, and usually the part of the short side part 72b is broken as the outer broken part, and the long side part that is not broken 72a functions as a hinge part that is easily deformed and bent. The outside of the partition part 72 is a non-deployment part that does not deploy even when the airbag 31 is inflated and deployed from the top panel part 64 to the side panel part 65, and is an outer body part 75 that constitutes the outer mounting part. .

また、このアウタ部61は、主として硬質な樹脂にて形成され、本実施の形態では、図１に示すように、いわば硬質の樹脂であるポリプロピレン(ＰＰ)を射出成形した基材である板状のアウタ基板部76の意匠面である表面側に、いわゆるリム(RIM)成形により外観や触感を向上するためのウレタン例えば無発泡ウレタンあるいは発泡ウレタン表皮(ＰＵＲ)である表皮層77を薄く一体的に加飾して形成されている。   Further, the outer portion 61 is mainly formed of a hard resin. In the present embodiment, as shown in FIG. 1, a plate-like shape that is a base material obtained by injection-molding polypropylene (PP), which is a hard resin, is used. A surface layer 77, which is a non-foamed urethane or a foamed urethane skin (PUR), for improving the appearance and tactile sensation by so-called rim (RIM) molding is thinly integrated on the surface side which is the design surface of the outer substrate portion 76 It is formed by decorating.

一方、インナ部62は、バッキング部あるいはエアバッグ用インナーなどとも呼ばれるもので、本実施の形態では、アウタ部61のアウタ基板部76を構成する材料よりも軟質の変形可能な材料にて形成された軟質樹脂製で、例えばエラストマー系の樹脂であるＴＰＯ樹脂(サーモプラスチックオレフィン)を金型に射出成形して形成すなわち成型された第１のインナ部81と、アウタ部61のアウタ基板部76と同一あるいは同様の硬質の樹脂であるポリプロピレン(ＰＰ)を射出成形した板状の第２のインナ部82の２個の部材を備えている。なお、第２のインナ部82は、第１のインナ部81と同一の軟質の樹脂であるＴＰＯ樹脂で形成することもできる。そして、第１のインナ部81は、上面パネル部64及び側面パネル部65の上側部の裏面側に位置して、振動溶着などによりアウタ部61に一体的に溶着して接合した状態で取り付けられ、第２のインナ部82は、側面パネル部65の下側部の裏面側に位置して振動溶着などによりアウタ部61に一体的に溶着して接合した状態で取り付けられている。そして、これら第１及び第２のインナ部81，82により、カバー体22が取付体34など他の部材に取り付けられるようになっている。   On the other hand, the inner part 62 is also called a backing part or an airbag inner, and in this embodiment, the inner part 62 is formed of a soft and deformable material than the material constituting the outer substrate part 76 of the outer part 61. A first inner part 81 formed by injection molding of a TPO resin (thermoplastic olefin), which is an elastomeric resin, for example, into a mold, and an outer substrate part 76 of the outer part 61; Two members of a plate-like second inner portion 82 in which polypropylene (PP), which is the same or similar hard resin, is injection-molded are provided. Note that the second inner portion 82 can also be formed of a TPO resin that is the same soft resin as the first inner portion 81. The first inner portion 81 is located on the back surface side of the upper portion of the top panel portion 64 and the side panel portion 65, and is attached in a state of being integrally welded and joined to the outer portion 61 by vibration welding or the like. The second inner portion 82 is located on the back side of the lower side portion of the side panel portion 65 and is attached in a state of being integrally welded and joined to the outer portion 61 by vibration welding or the like. The cover body 22 is attached to another member such as the attachment body 34 by the first and second inner portions 81 and 82.

そして、第１のインナ部81は、インナアッパあるいはアッパーインナーなどとも呼び得るもので、図１、図３及び図４に示すように、アウタ部61の上面パネル部64のアウタ扉部74の裏面側に取り付けられて扉部73を構成するインナ扉部84と、アウタ部61の上面パネル部64のアウタ本体部75及び側面パネル部65の裏面側に取り付けられて非展開部である取付部を構成するインナ取付部としてのインナ本体部85と、扉部73を構成するインナ扉部84の長手方向に沿った一側部である車室内側方とインナ本体部85とを変形可能に連結しヒンジ部を構成するインナヒンジ部としてのヒンジ本体部86と、扉部73を構成するインナ扉部84の長手方向に沿った他側部である車室外側方から展開方向である上方の略反対側である略下方の所定方向に突設された支持部としての支持片部87と、インナ本体部85の複数カ所から裏面側である車室外側方に膨出するように形成された係止取付部89と、インナ扉部84の裏面側の支持片部87の基端部である上端部の複数カ所から車室外側方に突出するように形成された衝撃吸収部を構成する台部90とが一体に形成されている。   The first inner portion 81 can also be called an inner upper or an upper inner. As shown in FIGS. 1, 3, and 4, the back surface side of the outer door portion 74 of the upper surface panel portion 64 of the outer portion 61. The inner door part 84 that is attached to the inner door part 73 and the outer body part 75 of the upper surface panel part 64 of the outer part 61 and the attachment part that is a non-deployed part is attached to the rear surface side of the side panel part 65. The inner body 85 as an inner mounting portion to be connected to the vehicle interior side, which is one side along the longitudinal direction of the inner door 84 constituting the door 73, and the inner body 85 are deformably connected to each other. Hinge body 86 as an inner hinge part constituting the part, and the other side part along the longitudinal direction of the inner door part 84 constituting the door part 73 on the substantially opposite side above the deployment direction from the outside of the vehicle compartment. As a support part that protrudes in a certain direction approximately below A support piece 87, a locking attachment 89 formed so as to bulge outward from the plurality of locations of the inner body 85 toward the vehicle exterior side, and a support piece 87 on the back side of the inner door 84. Are integrally formed with a base portion 90 constituting an impact absorbing portion formed so as to protrude outwardly from the plurality of locations of the upper end portion which is the base end portion of the vehicle.

そして、インナ扉部84は、略平板状をなし、表面側から支持片部87の反対側に向かい所定の方向に沿って格子状などに突設された図示しない溶着リブを振動溶着し、アウタ扉部74の裏面の略全面に沿って密着して一体的に取り付けられ、扉部73を構成している。   The inner door portion 84 has a substantially flat plate shape, and welds welding ribs (not shown) projecting in a lattice shape or the like along a predetermined direction from the surface side to the opposite side of the support piece portion 87, and welds the outer door portion 84. A door portion 73 is configured by being closely attached and integrally attached along substantially the entire back surface of the door portion 74.

また、インナ本体部85は、アウタ本体部75の裏面に密着して溶着される板状のインナ基板部93と、このインナ基板部93の前後の端部近傍の裏面側から垂直板状に突設されたインナ端板部94を備えている。そして、インナ基板部93は、アウタ本体部75の裏面側の形状に沿って湾曲した板状に形成され、インナ扉部84と交差する面をなしてインナ扉部84の車室内側方に位置するとともに、前後方向の両端部では、インナ扉部84の前側及び後側に延設されている。そして、このインナ基板部93は、インナ扉部84と同じく表面側から支持片部87の反対側に向かい所定の方向に沿って格子状などに突設された図示しない溶着リブを振動溶着し、アウタ本体部75の裏面に沿って密着して一体的に取り付けられ、非展開部を構成している。   Further, the inner main body portion 85 protrudes in a vertical plate shape from the plate-like inner substrate portion 93 that is welded in close contact with the back surface of the outer main body portion 75, and the back surface side in the vicinity of the front and rear ends of the inner substrate portion 93. An inner end plate portion 94 is provided. The inner board portion 93 is formed in a plate shape that is curved along the shape of the back surface side of the outer main body portion 75, and forms a surface that intersects the inner door portion 84 and is located on the side of the inner door portion 84 in the vehicle interior. In addition, the both ends in the front-rear direction extend to the front side and the rear side of the inner door portion 84. And this inner substrate portion 93 is vibration welded welding ribs (not shown) projecting in a lattice shape or the like along a predetermined direction from the surface side to the opposite side of the support piece portion 87 like the inner door portion 84, Attached and integrally attached along the back surface of the outer main body portion 75 constitutes a non-deployed portion.

なお、図１及び図５などの図においては、構成の理解を容易にするため、アウタ部61とインナ部62と振動溶着した部分に隙間を空けて図示している。   In the drawings such as FIGS. 1 and 5, in order to facilitate understanding of the configuration, the outer portion 61 and the inner portion 62 are illustrated with a gap in the vibration welded portion.

また、ヒンジ本体部86は、インナ扉部84の一側部である車室内側方の縁部とインナ本体部85とを一体に変形可能に連結し、非展開部に対し、長手方向である前後方向に沿った仮想的な軸を中心として、扉部73を展開すなわち回動可能に連結して支持している。そして、このヒンジ本体部86は、アウタ部61の区画部72の長辺部72aに対向し、この長辺部72aを跨ぐようにして、裏面側すなわち下方から車室外側方に向かい断面略Ｕ字状をなして湾曲して膨出している。さらに、このヒンジ本体部86は、複数のスリット部86aにより、複数の片状に分割されている。また、前後の端部のスリット部86aに連続し、端部スリット部86bが車室外側方の縁部まで延設されている。この端部スリット部86bは、インナ扉部84の前後の端部とインナ本体部85のインナ基板部93との間に位置し、区画部72の短辺部72bに対向する部分となる。なお、この端部スリット部86bは、本実施の形態では、切り溝であるスリットとして形成したが、薄肉の破断予定部として形成することもできる。   Further, the hinge main body portion 86 connects the inner side edge portion of the inner door portion 84, which is one side portion of the inner door portion 84, and the inner main body portion 85 so as to be integrally deformable, and is longitudinal with respect to the non-deployment portion. The door 73 is connected to and supported so as to be unfolded, that is, pivotable about a virtual axis along the front-rear direction. The hinge main body 86 is opposed to the long side 72a of the partition 72 of the outer part 61, and has a substantially U-shaped cross section from the back side, that is, from the lower side to the outside of the passenger compartment so as to straddle the long side 72a. It is shaped like a letter and curved to bulge out. Further, the hinge main body 86 is divided into a plurality of pieces by a plurality of slits 86a. Further, the slit part 86a is continuous with the slit part 86a at the front and rear ends, and the end slit part 86b extends to the edge part on the outer side of the vehicle compartment. The end slit portion 86b is located between the front and rear end portions of the inner door portion 84 and the inner substrate portion 93 of the inner main body portion 85, and is a portion facing the short side portion 72b of the partition portion 72. In this embodiment, the end slit portion 86b is formed as a slit that is a cut groove, but can also be formed as a thin-walled portion to be broken.

また、支持片部87は、エアバッグリッドあるいは縦壁などとも呼び得るもので、インナ扉部84の車室外側方の端部近傍から略下方の所定方向に向かい板状をなして一体に突設されている。そして、この支持片部87の先端側すなわち下端側の複数カ所には、他の部分より突設された取付固定部96が設けられている。そして、これら取付固定部96は、前後方向に略等間隔で、それぞれ先端側が半円状の舌片状のリベット座とも呼び得るもので、それぞれ半円を構成する円の中心に位置してモジュール取付孔あるいはリベット孔とも呼び得る円孔状の取付孔96aが設けられている。そして、図１に示すように、この取付孔96aに挿入されるリベットなどの固定具52により、取付固定部96すなわち支持片部87の先端側である下側部が取付体34の取付固定受部45に固定して取り付けられる。   The support piece 87 can also be called an air bag grid or a vertical wall. The support piece 87 protrudes integrally from the vicinity of the end of the inner door 84 on the outside of the passenger compartment in a substantially downward direction in a plate shape. Has been. Then, at a plurality of locations on the front end side, that is, the lower end side of the support piece portion 87, there are provided attachment fixing portions 96 protruding from other portions. These mounting and fixing portions 96 can be called tongue-shaped rivet seats with a semicircular tip at a substantially equal interval in the front-rear direction, and are located at the centers of the circles forming the semicircle, respectively. A circular attachment hole 96a, which can also be called an attachment hole or a rivet hole, is provided. Then, as shown in FIG. 1, by means of a fixing tool 52 such as a rivet inserted into the mounting hole 96a, the mounting fixing portion 96, that is, the lower side, which is the distal end side of the support piece portion 87, is attached to the mounting body 34. It is fixedly attached to the part 45.

さらに、この支持片部87には、中間位置、すなわち、取付固定部96の上側部に位置し、かつ、インナ扉部84の下面から離間して位置し、前後方向すなわち扉部73の長手方向に沿って、破断予定部99が形成されている。この破断予定部99は、テアライン、脆弱部、あるいはインナ破断部とも呼び得るもので、車室外側方から凹設された溝状をなし、支持片部87の他の部分すなわち上下に隣接する部分より厚さ寸法が小さく、例えば０．５mm程度の板厚で脆弱に形成され、エアバッグ31が膨張展開する圧力により破断するようになっている。   Further, the support piece portion 87 is located at an intermediate position, that is, at an upper portion of the mounting fixing portion 96, and is spaced from the lower surface of the inner door portion 84, and in the front-rear direction, that is, the longitudinal direction of the door portion 73. A planned fracture portion 99 is formed along the line. This planned fracture portion 99 can also be called a tear line, a weak portion, or an inner fracture portion, has a groove shape recessed from the outside of the passenger compartment, and is another portion of the support piece portion 87, that is, a portion adjacent to the top and bottom The thickness is smaller, for example, a fragile shape with a plate thickness of about 0.5 mm, and the air bag 31 is broken by the pressure at which it is inflated and deployed.

そして、この破断予定部99の下側に沿った部分は、各取付固定部96を前側から後側まで連続して一体に連結する平板状をなしている。一方、破断予定部99の上側に沿った部分には、複数のテアライン開口部101が形成されているとともに、これらテアライン開口部101同士の間に位置して、衝撃吸収部を構成する台部90が形成されている。そして、各テアライン開口部101は、少なくとも、取付固定部96の取付孔96aの上方、いわば直上に位置し、さらに、取付固定部96の上方に位置しない位置にも形成されている。そして、各テアライン開口部101は、支持片部87を貫通する矩形の開口で、インナ本体部85の裏面から破断予定部99に接する位置まで形成され、いわば、取付固定部96の上方では、破断予定部99とテアライン開口部101とが一体的に形成されている。   And the part along the lower side of this planned fracture | rupture part 99 has comprised flat form which connects each attachment fixing | fixed part 96 continuously and integrally from the front side. On the other hand, a plurality of tear line openings 101 are formed in a portion along the upper side of the planned fracture portion 99, and a base 90 that constitutes an impact absorbing portion is positioned between the tear line openings 101. Is formed. Each tear line opening 101 is formed at least above the mounting hole 96a of the mounting and fixing portion 96, that is, directly above, and at a position not positioned above the mounting and fixing portion 96. Each tear line opening 101 is a rectangular opening penetrating the support piece 87, and is formed from the back surface of the inner main body 85 to a position in contact with the planned breaking portion 99, so to speak, above the mounting fixing portion 96, The planned portion 99 and the tear line opening 101 are integrally formed.

さらに、各台部90は、ボックス部あるいはブロック部などとも呼び得るもので、図１及び図３に示すように、案内部としての案内板部103と、この案内板部103から上側に突設された側板部104とを備えている。そして、案内板部103は、略平板状をなし、破断予定部99の上側の縁部に沿った位置から車室外側方に突設され、インナ扉部84の下方に離間し、かつ、インナ扉部84とほぼ平行に配置されている。また、これら案内板部103の扉部73の長手方向に沿った寸法、すなわち支持片部87からの突出方向に対する幅寸法は、互いに同一ではなく、扉部73の長手方向の中央部分では、支持片部87の幅寸法は比較的小さく設定される一方、扉部73の長手方向の両端部分では、中央部分に対して、支持片部87の幅寸法は比較的大きく設定されている。そして、幅寸法の小さい案内板部103については、幅方向の中央部分から側板部104が突設され、中央部分がインナ扉部84に連結されてリブを備えた形状となっている。一方、幅寸法の大きい案内板部103については、幅方向の両側部分から側板部104が突設されてインナ扉部84に連結されて箱状となっている。また、これら案内板部103及び側板部104の板厚は、１．８mm以上２．５mm以下に設定されている。あるいは、側板部104は、荷重を受けた時にたわむように、１．８mm以上２．０mm以下とし、案内板部103は、縁片部66に力を伝達するために側板部104よりも強度を上げて、１．８mm以上４．０mm以下とすることもできる。   Further, each base 90 can be called a box or a block, and as shown in FIGS. 1 and 3, a guide plate 103 as a guide and a projecting upper side from the guide plate 103 are provided. Side plate portion 104 is provided. The guide plate portion 103 has a substantially flat plate shape, protrudes outward from the position along the upper edge of the planned fracture portion 99, and is spaced below the inner door portion 84. It is arranged substantially parallel to the door part 84. In addition, the dimensions along the longitudinal direction of the door portion 73 of the guide plate portion 103, that is, the width dimension with respect to the protruding direction from the support piece portion 87 are not the same, and the central portion of the door portion 73 in the longitudinal direction is supported. While the width dimension of the piece portion 87 is set to be relatively small, the width dimension of the support piece portion 87 is set to be relatively large with respect to the central portion at both end portions in the longitudinal direction of the door portion 73. The guide plate portion 103 having a small width dimension has a shape in which a side plate portion 104 protrudes from a central portion in the width direction, and the central portion is connected to the inner door portion 84 to include a rib. On the other hand, the guide plate portion 103 having a large width dimension has a box shape in which side plate portions 104 project from both side portions in the width direction and are connected to the inner door portion 84. The plate thickness of the guide plate portion 103 and the side plate portion 104 is set to 1.8 mm or more and 2.5 mm or less. Alternatively, the side plate portion 104 is set to be 1.8 mm or more and 2.0 mm or less so as to bend when receiving a load, and the guide plate portion 103 is stronger than the side plate portion 104 in order to transmit a force to the edge piece portion 66. It can be raised to 1.8 mm or more and 4.0 mm or less.

そして、インナ部62をアウタ部61に取り付けた状態で、破断予定部99と縁片部66の先端部とはほぼ同じ高さ位置にあり、案内板部103の先端部は、アウタ部61の縁片部66の下端部である先端部に沿って当接する。すなわち、案内板部103の下面が縁片部66の先端部の端縁に滑らかに連設して、下面にエアバッグ31を案内するいわば滑り台部が構成される。さらに、この台部90を含む部分は、単なる板状の部分よりも変形しにくい形状で、かつ、所定の力が加わった状態で、衝撃を吸収しつつ潰れ変形すなわち座屈する衝撃吸収部を構成する。この衝撃吸収部は、上記のように、扉部73の長手方向の両端部分については箱状となり、扉部73の長手方向の中央部分についてはリブを備えた断面略Ｈ字状となっている。さらに、破断予定部99が破断した状態で、支持片部87の破断により形成された端縁部と、縁片部66の先端部との間の空間部の下側が、案内板部103により覆われるようになっている。   In a state where the inner part 62 is attached to the outer part 61, the breakable part 99 and the tip part of the edge piece part 66 are substantially at the same height position, and the tip part of the guide plate part 103 is located on the outer part 61. It abuts along the tip which is the lower end of the edge piece 66. That is, the lower surface of the guide plate portion 103 is smoothly connected to the edge of the front end portion of the edge piece portion 66, and a so-called slide base portion for guiding the airbag 31 is formed on the lower surface. Furthermore, the portion including the base 90 is shaped to be more difficult to deform than a mere plate-shaped portion, and constitutes an impact absorbing portion that undergoes crushing deformation, that is, buckling while absorbing an impact while a predetermined force is applied. To do. As described above, the shock absorbing portion has a box shape at both end portions in the longitudinal direction of the door portion 73, and has a substantially H-shaped cross section with ribs at the central portion in the longitudinal direction of the door portion 73. . Further, the guide plate 103 covers the lower side of the space between the edge portion formed by the breakage of the support piece portion 87 and the tip end portion of the edge piece portion 66 in the state where the breakable portion 99 is broken. It has come to be.

また、案内板部103の幅寸法に対応し、テアライン開口部101については、扉部73の長手方向の中央部分では、幅寸法は比較的大きく、扉部73の長手方向の両端部分では、中央部分に対して、幅寸法は比較的小さく形成されている。   Also, corresponding to the width dimension of the guide plate portion 103, the tear line opening 101 has a relatively large width dimension in the central portion in the longitudinal direction of the door portion 73, and the central portion in both longitudinal end portions of the door portion 73. The width dimension is relatively small with respect to the portion.

一方、インナ本体部85の係止取付部89は、係合部受容部とも言い得るもので、図１及び図３に示すように、インナ本体部85のインナ基板部93の複数カ所から内側に空間を有するように車室外側方に凸状に膨出し、インナ部62のインナ基板部93をアウタ部61のアウタ基板部76に溶着して取り付けた状態で、このアウタ部61のアウタ基板部76とともに箱状をなすように形成されている。すなわち、各係止取付部89は、いわば衝撃吸収ボックス体を構成し、単なる板状の部分よりも変形しにくい形状で、かつ、所定の力が加わった状態で、衝撃を吸収しつつ潰れ変形すなわち座屈して、インナ本体部85の剛性と衝撃吸収特性とを両立するようになっている。そして、各係止取付部89は、図３に示すように、インナ基板部93の略垂直状の部分の車室外側方に離間して位置する略垂直状の係合受基部としての支持板基部89aと、この支持板基部89aの上端部とインナ基板部93を連結する傾斜した傾斜支持板部89bと、これらインナ基板部93、支持板基部89a、及び傾斜支持板部89bの両側部を連結する一対の側部支持板部89cとが一体に形成されている。さらに、傾斜支持板部89bには、フック引掛用の取付用開口部89dが形成され、支持板基部89aには、車室内側方及び車室外側方のそれぞれに補強リブ部89eが一体に突設されている。そして、インナ基板部93と係止取付部89とがインナ部62の長手方向に沿っていわば交互に形成されて凹凸状をなし、外部から力が加わった際に長手方向に沿ってたわむように湾曲可能となっている。また、インナ基板部93は、アウタ部61のアウタ基板部76に沿って配置されるとともにこのアウタ基板部76に溶着して一体的に接合して取り付けられる。   On the other hand, the locking attachment portion 89 of the inner main body portion 85 can also be referred to as an engagement portion receiving portion. As shown in FIGS. The outer base plate portion of the outer portion 61 is bulged in a convex shape outward from the passenger compartment so as to have a space, and the inner base plate portion 93 of the inner portion 62 is welded to and attached to the outer base plate portion 76 of the outer portion 61. It is formed to form a box with 76. In other words, each of the locking mounting portions 89 constitutes a shock absorbing box body, has a shape that is harder to deform than a simple plate-like portion, and is deformed while absorbing a shock in a state where a predetermined force is applied. In other words, it buckles and achieves both the rigidity of the inner body 85 and the shock absorption characteristics. As shown in FIG. 3, each locking attachment portion 89 is a support plate as a substantially vertical engagement receiving portion that is spaced apart from the vehicle compartment outside of the substantially vertical portion of the inner substrate portion 93. A base 89a, an inclined inclined support plate 89b connecting the upper end of the support plate base 89a and the inner substrate 93, and both sides of the inner substrate 93, the support plate base 89a, and the inclined support plate 89b. A pair of side support plate portions 89c to be coupled are integrally formed. Further, the inclined support plate portion 89b is provided with a hook opening 89d for hook hooking, and the support rib base portion 89a is integrally provided with reinforcing rib portions 89e on the vehicle interior side and the vehicle exterior side. It is installed. The inner substrate portion 93 and the locking attachment portion 89 are alternately formed along the longitudinal direction of the inner portion 62 to form an uneven shape, and bend along the longitudinal direction when a force is applied from the outside. It can be bent. Further, the inner substrate portion 93 is disposed along the outer substrate portion 76 of the outer portion 61, and is welded and integrally joined to the outer substrate portion 76.

一方、第２のインナ部82は、インナロアあるいはロアインナーなどとも呼び得るもので、第１のインナ部81とは別体であり、図１に示すように、第１のインナ部81の下方に位置してアウタ基板部76の裏面側に密着し溶着などして取り付けられた板状の下基板部82aと、この下基板部82aから裏面側である車室外側方に突設された複数の第２取付部82bとが一体に形成されている。また、この実施の形態では、各第２取付部82bは、車室外側方の下方に向かって傾斜した方向を軸方向とする筒状に形成されている。   On the other hand, the second inner portion 82 may be called an inner lower or a lower inner, and is separate from the first inner portion 81, and is provided below the first inner portion 81 as shown in FIG. A plate-like lower substrate portion 82a that is positioned and adhered to the back surface side of the outer substrate portion 76, and is attached by welding or the like, and a plurality of protrusions projecting outward from the lower substrate portion 82a to the vehicle exterior side that is the back surface side The second attachment portion 82b is integrally formed. Further, in this embodiment, each second mounting portion 82b is formed in a cylindrical shape whose axial direction is a direction inclined downward toward the outside of the vehicle compartment.

また、このエアバッグ装置21のインフレータに接続される制御装置は、ＣＰＵを備えるとともに、単数あるいは複数のセンサが接続され、乗員、衝突、車体の角度などの状態に応じてインフレータを起動させる点火信号を送るようになっている。   The control device connected to the inflator of the airbag device 21 includes a CPU and an ignition signal that is connected to one or a plurality of sensors and activates the inflator according to the state of an occupant, a collision, a vehicle body angle, and the like. Is supposed to send.

次に、このエアバッグ装置21の製造工程を説明する。   Next, the manufacturing process of the airbag device 21 will be described.

まず、カバー体22は、アウタ部61、及びインナ部62の第１及び第２のインナ部81，82をそれぞれ金型を用いて樹脂にて一体に形成し、これら第１及び第２のインナ部81，82をアウタ部61に振動溶着して一体的に接合する。ここで、アウタ部61の表皮層77については、他の工程に対して適宜の順序で形成できるが、例えば、アウタ部61のアウタ基板部76、インナ部62の第１及び第２のインナ部81，82をそれぞれ形成し、アウタ基板部76の裏面に第１のインナ部81を振動溶着し、次いで、アウタ基板部76の表面に表皮層77を反応射出形成で形成し、最後に、アウタ基板部76の裏面に第２のインナ部82を振動溶着することができる。   First, the cover body 22 is formed by integrally forming the outer portion 61 and the first and second inner portions 81 and 82 of the inner portion 62 with resin using a mold, and the first and second inner portions. The parts 81 and 82 are vibration welded to the outer part 61 and integrally joined. Here, the skin layer 77 of the outer portion 61 can be formed in an appropriate order with respect to other processes. For example, the outer substrate portion 76 of the outer portion 61, the first and second inner portions of the inner portion 62, and the like. 81 and 82 are formed, the first inner portion 81 is vibration welded to the back surface of the outer substrate portion 76, and then the skin layer 77 is formed on the surface of the outer substrate portion 76 by reaction injection formation. The second inner portion 82 can be vibration welded to the back surface of the substrate portion 76.

そして、取付体34の収納部44にインフレータと折り畳んだエアバッグ31を収納し、これら部材をカバー体22で覆った状態で、図１に示すように、エアバッグモジュールとして構成される。そして、このカバー体22のエアバッグモジュールへの取付作業は、取付体34のカバー係止部48を係止取付部89の取付用開口部89dに挿入し、補強リブ部89eに嵌合するようにして支持板基部89aに係止し、カバー体22の上側部の車室内側方の部分を取付体34で支持する。また、取付体34のカバー固定受部49に車室外側方の下方から挿入したビスなどの固定具53を第２取付部82bに螺合して固定し、カバー体22の下側部を取付体34で支持する。   Then, the inflator and the folded airbag 31 are accommodated in the accommodating portion 44 of the attachment body 34, and these members are covered with the cover body 22, and as shown in FIG. The cover body 22 is attached to the airbag module in such a manner that the cover locking portion 48 of the mounting body 34 is inserted into the mounting opening 89d of the locking mounting portion 89 and fitted into the reinforcing rib portion 89e. Then, the support plate base 89a is engaged, and the upper side portion of the cover body 22 on the side of the vehicle interior is supported by the mounting body 34. Further, a fixing tool 53 such as a screw inserted from the lower outside of the passenger compartment is fixed to the cover fixing receiving portion 49 of the mounting body 34 by screwing into the second mounting portion 82b, and the lower side portion of the cover body 22 is attached. Support with body 34.

さらに、カバー体22の支持片部87を、破断予定部99に沿って開くように変形すなわち屈曲し、取付固定部96を取付体34のプレート42に沿わせる。この状態で、取付固定部96の取付孔96aから取付体34の取付固定受部45にリベットなどの固定具52を挿入し、この固定具52をかしめるなどして、取付固定部96を取付体34に固定し、カバー体22の上側部の車室外側方の部分を取付体34で支持する。すなわち、この状態で、支持片部87の下側部は、上下方向に沿って垂直状に取付体34に取り付けられるとともに、支持片部87の上側部は、折り畳んで収納されたエアバッグ31の上側部に臨むように傾斜して配置されている。   Further, the support piece portion 87 of the cover body 22 is deformed, that is, bent so as to open along the planned fracture portion 99, and the attachment fixing portion 96 is made to follow the plate 42 of the attachment body 34. In this state, the mounting fixing portion 96 is attached by inserting a fixing tool 52 such as a rivet from the mounting hole 96a of the mounting fixing portion 96 into the mounting fixing receiving portion 45 of the mounting body 34 and caulking the fixing tool 52. The body 34 is fixed to the body 34, and the outer side portion of the upper side of the cover body 22 is supported by the attachment body 34. That is, in this state, the lower side portion of the support piece portion 87 is vertically attached to the attachment body 34 along the vertical direction, and the upper side portion of the support piece portion 87 is folded and stored in the airbag 31. It is inclined and arranged so as to face the upper part.

このようにして、前後方向から見て、すくなとも３カ所でカバー体22を取付体34に支持し、カバー体22が安定して支持される。   In this way, the cover body 22 is supported by the mounting body 34 at least at three positions when viewed from the front-rear direction, and the cover body 22 is stably supported.

そして、インフレータと制御装置とを電気的に接続するとともに、取付体34の車体取付部43を固定具51でドア部１のインナパネル16に取り付け、カバー体22の下端のトリム連接部69を主ドアトリム18に係合するとの簡略な作業により、エアバッグ装置21がドア部１に設置される。   The inflator and the control device are electrically connected, and the vehicle body attachment portion 43 of the attachment body 34 is attached to the inner panel 16 of the door portion 1 with the fixture 51, and the trim connecting portion 69 at the lower end of the cover body 22 is mainly used. The airbag device 21 is installed on the door portion 1 by a simple operation of engaging with the door trim 18.

この状態で、カバー体22の上面パネル部64などにより、取付体34にエアバッグ31などを組み付けたモジュールのエアバッグ膨出側である上方が覆われるとともに、カバー体22の側面パネル部65などにより、乗員側である車室内側方など覆われ、カバー体22が、モジュールの上方と乗員側とを連続して覆う内装パネルとして機能するようになっている。また、この状態で、カバー体22の側面パネル部65は、乗員の側部に近接して対向した状態となる。   In this state, the upper surface panel portion 64 of the cover body 22 covers the upper part of the module in which the airbag 31 and the like are assembled to the attachment body 34, and the side panel portion 65 of the cover body 22 and the like. Thus, the side of the passenger compartment on the passenger side is covered, and the cover body 22 functions as an interior panel that continuously covers the upper side of the module and the passenger side. Further, in this state, the side panel portion 65 of the cover body 22 is in a state of facing and facing the side portion of the occupant.

次に、エアバッグ装置21の展開時の動作を説明する。   Next, an operation when the airbag device 21 is deployed will be described.

図１、及び図５(a)に示すエアバッグ31の収納状態から、自動車の車体が側面衝突などの衝撃を受け、あるいは横転などすると、センサなどの信号に基づき制御手段が判断してインフレータを起動し、エアバッグ31にガスを供給する。すると、このエアバッグ31は、収納部44が開口する上側(矢印Ｕ方向に)に向かって膨張展開を開始し、カバー体22の扉部73を下側から上方に向かって押圧する。そして、この押圧する圧力により、インナ部62の支持片部87の破断予定部99が破断するとともに、アウタ部61の区画部72の一部または全部、少なくとも短辺部72bを破断する。   When the vehicle body is subjected to an impact such as a side collision or rolls over from the stored state of the airbag 31 shown in FIG. 1 and FIG. 5 (a), the control means makes a judgment based on signals from sensors, etc. It starts and supplies gas to the airbag 31. Then, the airbag 31 starts to inflate and deploy toward the upper side (in the direction of arrow U) where the storage portion 44 opens, and presses the door portion 73 of the cover body 22 upward from the lower side. Due to this pressing pressure, the planned break portion 99 of the support piece portion 87 of the inner portion 62 is broken, and at least a short side portion 72b of a part or all of the partition portion 72 of the outer portion 61 is broken.

そして、エアバッグ31がさらに膨張展開すると、このエアバッグ31により押圧された扉部73がアウタ部61の長辺部72a及びインナ部62のヒンジ本体部86を支点として車室内側方に回動し、エアバッグ31のエアバッグ膨出用通路を形成する。なお、アウタ部61の区画部72の長辺部72aが破断せずに接続された状態の場合には、この長辺部72aが支点となり、ヒンジ本体部86は伸びるように変形して、扉部73が円滑に回動する。また、長辺部72aが破断した場合には、ヒンジ本体部86は伸びるように変形しながら支点となり、扉部73が円滑に回動する。そして、このエアバッグ膨出用通路から突出したエアバッグ31は、扉部73を回動させながら、この扉部73と窓部15との間を介し、図５(b)に示すように、窓部15に沿って上側に円滑に膨張展開し、側方に移動する乗員を拘束して頭部などを保護する。   When the airbag 31 is further inflated and deployed, the door portion 73 pressed by the airbag 31 rotates to the side of the vehicle interior with the long side portion 72a of the outer portion 61 and the hinge body portion 86 of the inner portion 62 as fulcrums. Then, an air bag inflation passage for the air bag 31 is formed. When the long side portion 72a of the partition portion 72 of the outer portion 61 is connected without breaking, the long side portion 72a serves as a fulcrum, and the hinge main body portion 86 is deformed so as to extend, and the door The portion 73 rotates smoothly. Further, when the long side portion 72a is broken, the hinge main body portion 86 becomes a fulcrum while being deformed to extend, and the door portion 73 is smoothly rotated. And, as shown in FIG. 5 (b), the airbag 31 protruding from the airbag inflating passage is rotated between the door portion 73 and the window portion 15 while rotating the door portion 73. It smoothly inflates and expands upward along the window 15 and restrains the occupant moving to the side to protect the head and the like.

また、エアバッグ装置21の展開時、あるいは非展開時に、乗員が側方に移動してエアバッグ装置21に当接した場合には、略箱状などをなす各係止取付部89及び台部90が潰れ変形するとともに、カバー体22が長手方向に沿ってたわむように湾曲し、衝撃を吸収して乗員を保護する。   Further, when the occupant moves to the side and contacts the airbag device 21 when the airbag device 21 is deployed or not deployed, each locking attachment portion 89 and the base portion that form a substantially box shape or the like 90 is crushed and deformed, and the cover body 22 is bent so as to bend along the longitudinal direction, absorbing the impact and protecting the occupant.

このように、本実施の形態によれば、ドア部１内に収納したエアバッグ31をドア部１の上面から上方に膨張展開するいわゆるドアマウントエアバッグを構成し、車両の座席に着席した乗員を拘束して頭部などを保護できる。   As described above, according to the present embodiment, a so-called door mount airbag that inflates and deploys the airbag 31 accommodated in the door portion 1 upward from the upper surface of the door portion 1 and is seated on the vehicle seat The head can be protected by restraining.

すなわち、カバー体22に覆われたエアバッグ31にガスを供給することにより、支持片部87の破断予定部99を円滑に破断し、ヒンジ部を支点として扉部73を円滑に開いてエアバッグ31を車室２の窓部15に沿って所定方向である上方に向かって円滑迅速に展開させることができる。そして、この破断予定部99は、支持片部87に設けたため、外観に影響を与えることなく、破断の特性を自由に設定でき、扉部73を円滑に開くことができる。   That is, by supplying gas to the airbag 31 covered with the cover body 22, the fracture portion 99 of the support piece portion 87 is smoothly broken, and the door portion 73 is smoothly opened with the hinge portion as a fulcrum. 31 can be smoothly and rapidly developed along the window portion 15 of the passenger compartment 2 upward in a predetermined direction. Since the planned breakage portion 99 is provided on the support piece portion 87, the breakage characteristic can be freely set without affecting the appearance, and the door portion 73 can be opened smoothly.

そして、カバー体22は、車室内側方の上部に設けた係止取付部89が取付体34のカバー係止部48に係止され、車室外側方の上部に設けた取付固定部96が固定具52で取付体34の取付固定受部45に固定され、車室内側方の高さ方向の中央部あるいは下部に設けた第２取付部82bが固定具53で取付体34のカバー固定受部49に固定されて、カバー体22が取付体34にがたつくことなく安定して支持される。   The cover body 22 has a locking attachment portion 89 provided at the upper part on the side of the vehicle interior and is engaged with a cover engagement part 48 of the attachment body 34, and an attachment fixing portion 96 provided at the upper part on the outer side of the vehicle interior. The fixing member 52 is fixed to the attachment fixing receiving portion 45 of the attachment body 34, and the second attachment portion 82b provided at the center or the lower part in the height direction on the side of the vehicle interior is the fixing member 53 with the cover fixing reception of the attachment body 34. Fixed to the portion 49, the cover body 22 is stably supported without rattling on the mounting body 34.

また、カバー体22の扉部73は、扉部73の長手方向に沿った他側部である車室外側方をインナ扉部84から突設された支持片部87により取付体34に取り付けられて支持され、扉部73の長手方向に沿った一側部である車室内側方をヒンジ部すなわち区画部72の長辺部72a及びヒンジ本体部86を介してインナ本体部85の係止取付部89で取付体34に取り付けられて支持されているとともに、扉部73の他側部には箱状あるいは断面略Ｈ字状の台部90を設け、一側部には箱状の係止取付部89を設けたため、長手寸法の大きいカバー体22の剛性を容易に向上でき、カバー体22を変形しにくくできる。そこで、ドア部１の開閉時や、乗員がカバー体22に力を加えた場合などにも、扉部73を含みカバー体22が変形することなく外観を良好に維持できる。   Further, the door portion 73 of the cover body 22 is attached to the attachment body 34 by a support piece portion 87 protruding from the inner door portion 84 on the outer side of the vehicle compartment, which is the other side portion along the longitudinal direction of the door portion 73. The inner side of the vehicle interior side that is supported on the side of the interior of the door 73 along the longitudinal direction of the door 73 via the hinge, that is, the long side 72a of the partition 72 and the hinge main body 86 is fixed. It is attached to and supported by the attachment body 34 by a portion 89, and a box-like or substantially H-shaped base 90 is provided on the other side of the door 73, and a box-like locking is provided on one side. Since the attachment portion 89 is provided, the rigidity of the cover body 22 having a large longitudinal dimension can be easily improved, and the cover body 22 can be hardly deformed. Therefore, even when the door portion 1 is opened or closed, or when a passenger applies a force to the cover body 22, the appearance including the door portion 73 can be maintained satisfactorily without the cover body 22 being deformed.

そして、扉部73の他側部である車室外側方には、アンダー形状となる縁片部66を設けたとともに、破断予定部99を設けた支持片部87は縁片部66から離間した位置に突設したため、外観を向上できるとともに、破断予定部99の破断の特性を自由に設定でき、扉部73を円滑に開くことができる。   Then, on the outer side of the passenger compartment, which is the other side portion of the door portion 73, an edge piece portion 66 having an under shape is provided, and the support piece portion 87 provided with the planned breaking portion 99 is separated from the edge piece portion 66. Since the protrusion is provided at the position, the appearance can be improved, the breaking characteristics of the planned breaking portion 99 can be freely set, and the door 73 can be opened smoothly.

そして、破断予定部99は、インナ扉部84から離間した位置に設けられ、さらに、この破断予定部99の縁部とアンダー形状となる縁片部66との間の空間をインナ部62のいわば滑り台形状の案内板部103で覆い、支持片部87から案内板部103に係る部分で展開するエアバッグ31を案内することにより、エアバッグ31がアンダー形状となる縁片部66を屈曲するように押圧して干渉することを抑制できるとともに、エアバッグ31が支持片部87と縁片部66との間に入り込むようにして干渉することを抑制できる。そこで、低温条件下であっても、硬質なポリプロピレン樹脂で形成された縁片部66を保護しつつ、カバー体22を保護しつつエアバッグ31を円滑に展開できる。   Further, the planned break portion 99 is provided at a position spaced from the inner door portion 84, and further, the space between the edge portion of the planned break portion 99 and the edge piece portion 66 having an under shape is the so-called inner portion 62. The airbag 31 is covered with the slide-shaped guide plate portion 103 and guided from the support piece portion 87 at the portion related to the guide plate portion 103, so that the airbag 31 bends the edge piece portion 66 that is in an under shape. Can be prevented from interfering with each other, and the air bag 31 can be prevented from interfering between the support piece portion 87 and the edge piece portion 66. Thus, even under a low temperature condition, the airbag 31 can be smoothly deployed while protecting the cover body 22 while protecting the edge piece 66 formed of hard polypropylene resin.

さらに、この案内板部103から側板部104を突設して、箱状などの台部90として補強したため、エアバッグ31の展開時に力が加わっても、案内板部103が撓んだり移動することなく、エアバッグ31を安定して案内できる。   Further, since the side plate portion 104 protrudes from the guide plate portion 103 and is reinforced as a box-like base portion 90, the guide plate portion 103 bends or moves even when a force is applied when the airbag 31 is deployed. Therefore, the airbag 31 can be guided stably.

さらに、これら案内板部103及び側板部104の板厚は、例えば１．８mm以上２．５以下に設定され、展開するエアバッグ31を案内できるとともに、展開するエアバッグ31の力を受けて若干の変形は許容され、さらに、乗員がカバー体22に当接した際には座屈するように変形することが可能であり、台部90の案内板部103及び側板部104などが座屈可能な衝撃吸収部として機能し、カバー体22の衝撃吸収特性を容易に向上でき、乗員を保護できるとともに、カバー体22を保護することができる。   Further, the plate thickness of the guide plate portion 103 and the side plate portion 104 is set to, for example, 1.8 mm or more and 2.5 or less, and can guide the airbag 31 to be deployed and slightly receives the force of the airbag 31 to be deployed. Can be deformed so that it can be buckled when the occupant comes into contact with the cover body 22, and the guide plate portion 103 and the side plate portion 104 of the base 90 can be buckled. It functions as an impact absorbing portion, can easily improve the impact absorbing characteristics of the cover body 22, can protect the occupant, and can protect the cover body 22.

さらに、係止取付部89は、一対の側部支持板部89cを設けた略箱状で、これら側部支持板部89cによりインナ基板部93に連続し、いわばインナ基板部93に凹凸をつけてインナ基板部93と係止取付部89とが交互にそれぞれ複数配置され、すなわち、アウタ部61に溶着して接合されるインナ基板部93の両側に近接しさらには連続して係止取付部89を配置している。そこで、カバー体22が乗員に対向する第２の面部の一般部と取付体34との間の僅かな空間においても、係止取付部89の直近に大きい面積で溶着面を確保でき、溶着強度が大きくなり、エアバッグ31の展開時などに係止取付部89に大きな力が加わった場合にも、インナ部62の破損やカバー係止部48の外れを確実に防止して、インナ部62とアウタ部61とが強固に接合した状態を容易に保持できる。   Furthermore, the locking attachment portion 89 is substantially box-shaped with a pair of side support plate portions 89c, and is continuous with the inner substrate portion 93 by the side support plate portions 89c, so to speak, the inner substrate portion 93 is uneven. The inner board portion 93 and the locking attachment portion 89 are alternately arranged in plurality, that is, adjacent to the both sides of the inner substrate portion 93 to be welded and joined to the outer portion 61, and further to the locking attachment portion. 89 is arranged. Therefore, even in a small space between the general portion of the second surface portion where the cover body 22 faces the occupant and the mounting body 34, a welding surface can be secured in a large area in the immediate vicinity of the locking mounting portion 89, and the welding strength Even when a large force is applied to the locking attachment portion 89 when the airbag 31 is deployed, the inner portion 62 is reliably prevented from being damaged and the cover locking portion 48 is prevented from coming off. And the outer part 61 can be easily maintained in a firmly joined state.

このように、インナ部62は、アウタ部61より軟質で変形可能な樹脂にて形成されているとともに、扉部73の両側部に衝撃吸収部となる台部90及び係止取付部89を設けたため、衝撃吸収特性を容易に良好に設定でき、エアバッグ31の非展開時における乗員保護性能を容易に向上できる。そこで、専用の衝撃吸収部材などを設ける必要がなく、製造コストを低減できるとともに、エアバッグ装置21の内側に大きな空間を確保する必要がなく、エアバッグ装置21の小形化が可能になり、車室２を狭めることなく利用でき、車室２の幅方向の寸法に余裕がなく、乗員がドア部１に近接する車室２ついても、エアバッグ装置21をドア部１に配置できる。   As described above, the inner part 62 is formed of a softer and deformable resin than the outer part 61, and the base part 90 and the locking attachment part 89 that are shock absorbing parts are provided on both sides of the door part 73. Therefore, it is possible to easily and satisfactorily set the impact absorption characteristics, and to easily improve the occupant protection performance when the airbag 31 is not deployed. Therefore, it is not necessary to provide a dedicated impact absorbing member, etc., and the manufacturing cost can be reduced, and it is not necessary to secure a large space inside the airbag device 21, and the airbag device 21 can be downsized. The air bag device 21 can be disposed on the door portion 1 even when the passenger compartment 2 is close to the door portion 1 because the compartment 2 can be used without being narrowed and there is no room in the widthwise dimension of the compartment 2.

また、カバー体22は、比較的硬質のアウタ部61と比較的軟質のインナ部62とを積層してカバー体22を構成し、インナ部62に一体に形成した支持片部87に破断予定部99を設けたため、アウタ部61のアウタ基板部76に形成する継ぎ目となる分割部あるいは破断予定部を少なくして、意匠面を大きく確保し、樹脂製のアウタ部61で上面側から側面部まで連続してインナ部62を覆って外観を向上でき、外観の良好な車室２用の内装材を構成できるとともに、カバー体22を車室外側方の縁片部66まで回動させ、エアバッグ31の膨出用通路を大きく形成し、エアバッグ31を円滑に膨張展開させることができる。   Further, the cover body 22 is formed by laminating a relatively hard outer portion 61 and a relatively soft inner portion 62 to constitute the cover body 22, and a portion to be broken in a support piece portion 87 formed integrally with the inner portion 62. Since 99 is provided, the number of split portions or planned fracture portions formed on the outer substrate portion 76 of the outer portion 61 is reduced to ensure a large design surface, and from the upper surface side to the side surface portion with the resin outer portion 61 The inner part 62 can be continuously covered so that the appearance can be improved, and the interior material for the vehicle compartment 2 having a good appearance can be formed, and the cover body 22 is rotated to the edge piece 66 on the outer side of the vehicle compartment, thereby The inflating passage 31 can be formed large and the airbag 31 can be inflated and deployed smoothly.

また、このエアバッグ装置21は、取付体34にインフレータ、エアバッグ31、及びドアトリムの一部を構成するカバー体22を取り付けた状態でエアバッグモジュールが構成されるため、エアバッグ装置21のモジュール化、ユニット化が可能になり、保管、搬送や車体のドア部１への組み付け作業などの作業性を向上できる。   Further, since the airbag device 21 is configured in a state where the inflator, the airbag 31, and the cover body 22 constituting a part of the door trim are attached to the attachment body 34, the module of the airbag device 21 is provided. And unitization are possible, and workability such as storage, transport and assembly work to the door portion 1 of the vehicle body can be improved.

また、扉部73の長手方向に沿って配置された破断予定部99を、断続的に形成したテアライン開口部101を互いに連結するように形成し、いわばテアライン開口部101により破断予定部99を断続的に形成したため、全長に連続する破断予定部のみを設ける構成に比べ、前後に長手寸法の大きい扉部73を、支持片部87の取付固定部96を設けた部分から迅速に切り離し、扉部73を円滑かつ迅速に展開させることができる。   Further, the planned break portion 99 arranged along the longitudinal direction of the door portion 73 is formed so as to connect the tear line openings 101 formed intermittently, so that the tear line openings 101 are intermittently connected by the tear line openings 101. Therefore, the door 73 having a large longitudinal dimension is quickly separated from the portion provided with the mounting fixing portion 96 of the support piece 87, compared to the configuration in which only the planned fracture portion continuous with the entire length is provided, and the door portion 73 can be deployed smoothly and quickly.

そこで、本実施の形態のように、アウタ部61について、アウタ基板部76の表面に表皮層77を一体的に形成し、表皮層77にスリットを入れて扉部73の展開特性を調整することが容易ではないカバー体22についても、インナ部62の破断予定部99を円滑迅速に破断させることで、アウタ部61とインナ部62とを接合した扉部73の展開特性を容易に設定できる。   Therefore, as in the present embodiment, for the outer portion 61, the outer skin layer 77 is integrally formed on the surface of the outer substrate portion 76, and slits are formed in the outer skin layer 77 to adjust the development characteristics of the door portion 73. For the cover body 22 that is not easy to squeeze, the unfolding characteristic of the door part 73 where the outer part 61 and the inner part 62 are joined can be easily set by smoothly and quickly breaking the planned breaking part 99 of the inner part 62.

また、複数カ所に分割して設けられた破断予定部99の長さを各部位にて変更し、強度の強弱をつけることにより、エアバッグ31の展開時の扉部73のたわみなどを抑制し、扉部73を円滑に展開させることができる。すなわち、エアバッグ31の折り畳み形状や、インフレータの取付位置などインフレータから導入されるガス流の状態に応じて決まるエアバッグ31内部の圧力差、すなわちエアバッグ31がインナ扉部84すなわち扉部73を押圧する力の分布状態に対応し、支持片部87の複数のテアライン開口部101及び破断予定部99すなわち台部90の形状を設定し、本実施の形態では、扉部73の長手方向の中央部分では、テアライン開口部101は比較的大きくすなわち破断予定部99は比較的短く設定する一方、扉部73の長手方向の両端部分では、中央部分に対して、テアライン開口部101は小さくすなわち破断予定部99は長く設定したため、扉部73を長手方向に沿って均一に円滑に展開させることができる。   In addition, by changing the length of the planned break portion 99 provided by dividing it at multiple locations and adding strength, the deflection of the door portion 73 when the airbag 31 is deployed is suppressed. The door 73 can be smoothly deployed. That is, the pressure difference inside the airbag 31 determined according to the state of the gas flow introduced from the inflator, such as the folded shape of the airbag 31 and the mounting position of the inflator, i.e., the airbag 31 is connected to the inner door portion 84, that is, the door portion 73. Corresponding to the distribution state of the pressing force, the shape of the plurality of tear line openings 101 of the support piece portion 87 and the planned break portion 99, that is, the base portion 90 is set. In the portion, the tear line opening 101 is set to be relatively large, that is, the break planned portion 99 is set to be relatively short, while at both end portions in the longitudinal direction of the door portion 73, the tear line opening 101 is small, that is, to be broken Since the part 99 is set long, the door part 73 can be uniformly and smoothly developed along the longitudinal direction.

また、上記のように、エアバッグ31の膨張展開時には、インナ部62の支持片部87に設けた破断予定部99と、アウタ部61に設けた区画部72の少なくとも短辺部72bが破断すれば良いため、広い温度域で扉部73を円滑に回動させ、エアバッグ31を円滑に膨張展開させることができる。   Further, as described above, when the airbag 31 is inflated and deployed, the planned break portion 99 provided in the support piece portion 87 of the inner portion 62 and at least the short side portion 72b of the partition portion 72 provided in the outer portion 61 are broken. Therefore, the door 73 can be smoothly rotated in a wide temperature range, and the airbag 31 can be inflated and deployed smoothly.

また、カバー体22の扉部73は、車室内側方に回動するため、エアバッグ31を車室外側方に案内し、エアバッグ31を窓部15の窓ガラス14に沿って円滑に展開できる。   Further, since the door 73 of the cover body 22 is pivoted to the side of the vehicle interior, the airbag 31 is guided to the outside of the vehicle interior, and the airbag 31 is smoothly deployed along the window glass 14 of the window 15. it can.

なお、上記の実施の形態では、台部90は、一部について、案内板部103の両側から側板部104を突設した箱状とし、他の部分について、案内板部103の中央部の１カ所から側板部104を突設した断面略Ｈ字状としたが、この構成に限られず、箱状の台部90のみを形成し、あるいは、断面略Ｈ字状の台部90のみを形成することもできる。あるいは、台部90は、案内板部103とインナ扉部84との間に空間を有しない中実の構成とすることもできる。   In the above-described embodiment, the pedestal portion 90 is partly a box shape with the side plate portions 104 projecting from both sides of the guide plate portion 103, and the other portion is one of the central portion of the guide plate portion 103. Although the cross section is substantially H-shaped with the side plate portion 104 projecting from the place, it is not limited to this configuration, and only the box-shaped pedestal 90 is formed, or only the pedestal 90 having a substantially H-shaped cross section is formed. You can also. Alternatively, the base 90 may be a solid configuration that does not have a space between the guide plate 103 and the inner door 84.

また、上記の実施の形態では、カバー体22は、ドア部１の一部を覆うものとして説明したが、この構成に限られず、適宜の形状とすることができ、ドア部１の全体を一体に覆うドアトリムとして形成することもできる。さらに、ドア部１以外のインストルメントパネルなどに備えられるエアバッグ装置に適用することもできる。   In the above embodiment, the cover body 22 has been described as covering a part of the door portion 1. However, the present invention is not limited to this configuration, and the cover body 22 can have an appropriate shape, and the entire door portion 1 is integrated. It can also be formed as a door trim covering. Furthermore, the present invention can be applied to an airbag device provided in an instrument panel other than the door portion 1.

また、上記の実施の形態では、カバー体22は、アウタ部61とインナ部62とを積層し、さらに、アウタ部61は、アウタ基板部76の表面にリム(RIM)成形により表皮層77を薄く一体的に形成したが、この構成に限られず、例えば、表皮層77を形成しない構成とし、あるいは、アウタ部61とインナ部62とを一体に形成することもできる。   In the above embodiment, the cover body 22 is formed by laminating the outer portion 61 and the inner portion 62. Further, the outer portion 61 has a skin layer 77 formed on the surface of the outer substrate portion 76 by rim (RIM) molding. Although it is formed thinly and integrally, the present invention is not limited to this configuration. For example, the outer layer 61 and the inner portion 62 can be integrally formed without forming the skin layer 77.

また、アウタ部61の区画部72は、金型による成型の後に裏面側を切削して形成する構成に限られず、例えば、アウタ基板部76の表面に表皮層77を形成する構成では、アウタ基板部76の金型による成型の時にインジェクション型に突条を設けて同時に成型することもできる。   Further, the partition part 72 of the outer part 61 is not limited to the structure formed by cutting the back surface side after molding by a mold. For example, in the structure in which the skin layer 77 is formed on the surface of the outer substrate part 76, the outer substrate At the time of molding of the portion 76 by a mold, a protrusion can be provided on the injection mold and molding can be performed simultaneously.

また、テアライン開口部101は、矩形状の通孔に限られず、適宜の形状の通孔とし、あるいは、破断予定部99の長手方向に沿って細長いスリット状とすることもできる。   Further, the tear line opening 101 is not limited to a rectangular through hole, but may be a through hole having an appropriate shape, or may be formed into a long and narrow slit along the longitudinal direction of the planned fracture portion 99.

また、ヒンジ本体部86及び区画部72により構成されるヒンジ部は、カバー体22の上側部と側面部との角部に配置する他、カバー体22の上側部やカバー体22の側面部に配置することもできる。   In addition, the hinge part constituted by the hinge main body part 86 and the partition part 72 is arranged at the corner part between the upper side part and the side part of the cover body 22, and also on the upper part of the cover body 22 and the side part of the cover body 22. It can also be arranged.

また、インフレータやエアバッグの形状や構成は上記のものに限られず、種々の構成のものを用いることができる。   Further, the shape and configuration of the inflator and the airbag are not limited to those described above, and various configurations can be used.

本発明は、例えば、自動車のドア部やインストルメントパネル部に備えられて乗員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 is provided in a door portion or an instrument panel portion of an automobile and protects an occupant.

１ ドア部
２ 車室
15 側面部を構成する窓部
16 部材としてのインナパネル
21 エアバッグ装置
22 カバー体
31 エアバッグ
34 取付体
61 アウタ部
62 インナ部
66 アウタ縁片部である縁片部
73 扉部
74 アウタ扉部
75 アウタ取付部を構成するアウタ本体部
82b 取付部を構成する第２取付部
84 インナ扉部
85 取付部を構成するインナ取付部としてのインナ本体部
86 ヒンジ部を構成するインナヒンジ部としてのヒンジ本体部
87 支持部としての支持片部
90 衝撃吸収部を構成する台部
99 破断予定部
103 案内部としての案内板部 1 Door 2 Car compartment
15 Windows constituting the side
16 Inner panel as member
21 Airbag device
22 Cover body
31 airbag
34 Mounting body
61 Outer part
62 Inner part
66 Edge piece which is outer edge piece
73 Door
74 Outer door
75 Outer body part constituting the outer mounting part
82b Second mounting part constituting the mounting part
84 Inner door
85 Inner body as the inner mounting part of the mounting part
86 Hinge body as the inner hinge part of the hinge part
87 Support piece as support
90 Base parts constituting the shock absorbing part
99 planned fracture
103 Guide plate as guide

Claims (5)

取付体に取り付けられるとともにガスが導入されて展開するエアバッグを覆うエアバッグのカバー体であって、
前記エアバッグの展開方向を覆う扉部と、
前記取付体に取り付けられる取付部と、
この取付部と前記扉部の一側部とを変形可能に連結するヒンジ部と、
前記扉部の他側部の縁部に設けられた縁片部と、
前記扉部の他側部の縁部近傍かつ前記縁片部から離間した位置から突設され前記取付体に取り付けられる支持部と、
この支持部に設けられ前記エアバッグの展開時の圧力で破断する破断予定部と、
この破断予定部の前記扉部側の縁部と前記縁片部の先端部との間に位置し、前記縁片部の先端部に沿って先端部が当接して展開する前記エアバッグを案内する案内部と
を具備することを特徴とするエアバッグのカバー体。 A cover body for an airbag that covers an airbag that is attached to a mounting body and gas is introduced and deployed,
A door portion covering the deployment direction of the airbag;
An attachment portion attached to the attachment body;
A hinge portion that connects the mounting portion and one side portion of the door portion in a deformable manner;
An edge piece provided on an edge of the other side of the door,
A support portion protruding from a position near the edge of the other side portion of the door portion and spaced from the edge piece portion and attached to the attachment body;
A portion to be ruptured provided at the support portion and ruptured by the pressure when the airbag is deployed;
Guides the airbag that is positioned between the edge portion of the door portion side of the planned breakage portion and the distal end portion of the edge piece portion, and the distal end portion abuts along the distal end portion of the edge piece portion and is deployed. An air bag cover body comprising: a guide portion that includes: 案内部は座屈可能な衝撃吸収部を構成するThe guide part constitutes a buckling-resistant shock absorbing part
ことを特徴とする請求項１記載のエアバッグのカバー体。The airbag cover body according to claim 1. 取付体に取り付けられるとともにガスが導入されて展開するエアバッグを覆うエアバッグのカバー体であって、A cover body for an airbag that covers an airbag that is attached to a mounting body and gas is introduced and deployed,
前記エアバッグの展開方向を覆う扉部と、A door portion covering the deployment direction of the airbag;
前記取付体に取り付けられる取付部と、An attachment portion attached to the attachment body;
この取付部と前記扉部の一側部とを変形可能に連結するヒンジ部と、A hinge portion that connects the mounting portion and one side portion of the door portion in a deformable manner;
前記扉部の他側部の縁部に設けられた縁片部と、An edge piece provided on an edge of the other side of the door,
前記扉部の他側部の縁部近傍かつ前記縁片部から離間した位置から突設され前記取付体に取り付けられる支持部と、A support portion protruding from a position near the edge of the other side portion of the door portion and spaced from the edge piece portion and attached to the attachment body;
この支持部に設けられ前記エアバッグの展開時の圧力で破断する破断予定部と、A portion to be ruptured provided at the support portion and ruptured by the pressure when the airbag is deployed;
この破断予定部の前記扉部側の縁部と前記縁片部の先端部との間に位置し展開する前記エアバッグを案内するとともに、座屈可能な衝撃吸収部を構成する案内部とA guide portion that constitutes a buckling impact absorbing portion and guides the airbag positioned and deployed between the edge portion of the door portion side of the planned break portion and the tip portion of the edge piece portion;
を具備することを特徴とするエアバッグのカバー体。An airbag cover body comprising: 扉部を構成するインナ扉部及び取付部を構成するインナ取付部を備えるとともに、これらインナ扉部とインナ取付部とを変形可能に連結しヒンジ部を構成するインナヒンジ部、及び支持部を構成する支持片部及び案内部を構成する案内片部を備えたインナ部と、
前記インナ扉部の表面側を覆って固着され扉部を構成するアウタ扉部、及び前記インナ取付部の表面側を覆って固着され取付部を構成するアウタ取付部を備えるとともに、前記アウタ扉部の縁部から突設され縁片部を構成するアウタ縁片部を備えたアウタ部と
を具備することを特徴とする請求項１ないし３いずれか一記載のエアバッグのカバー体。 An inner door portion constituting the door portion and an inner attachment portion constituting the attachment portion are provided, and the inner door portion and the inner attachment portion are deformably connected to constitute the hinge portion and the support portion. An inner part provided with a guide piece part constituting a support piece part and a guide part;
The outer door part includes an outer door part that covers and adheres to the surface side of the inner door part, and an outer attachment part that covers the surface side of the inner attachment part and forms an attachment part. The outer cover part provided with the outer edge piece part which protrudes from the edge part and comprises the edge piece part. The cover body of the airbag as described in any one of Claim 1 thru | or 3 characterized by the above-mentioned. 車室のドア部に折り畳んで収納されガスが導入されてこの車室の側面部を構成する窓部に沿って上方に展開するエアバッグと、
このエアバッグにガスを供給するインフレータと、
前記エアバッグを覆う請求項１ないし４いずれか一記載のカバー体と、
このカバー体の取付部及び支持部、前記エアバッグ、及び前記インフレータが取り付けられるとともに、前記ドア部の部材に取り付けられる取付体とを具備し、
アウタ部は、樹脂にて形成されて前記ドア部の内装材を構成し、
インナ部は、前記アウタ部より軟質で変形可能な樹脂にて形成された
ことを特徴とするエアバッグ装置。 An airbag that is folded and stored in a door portion of the passenger compartment and gas is introduced and deployed upward along a window portion that constitutes a side portion of the passenger compartment;
An inflator for supplying gas to the airbag;
The cover body according to any one of claims 1 to 4, which covers the airbag;
The cover body mounting portion and support portion, the airbag, and the inflator are mounted, and the mounting body is mounted on the door portion member,
The outer part is made of resin and constitutes the interior material of the door part,
The inner part is formed of a resin that is softer and more deformable than the outer part.
JP2009147025A 2009-06-19 2009-06-19 Airbag cover body and airbag device Expired - Fee Related JP5319414B2 (en)

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