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JP3614795B2 - Vehicle occupant protection device - Google Patents

Vehicle occupant protection device Download PDF

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Publication number
JP3614795B2
JP3614795B2 JP2001136472A JP2001136472A JP3614795B2 JP 3614795 B2 JP3614795 B2 JP 3614795B2 JP 2001136472 A JP2001136472 A JP 2001136472A JP 2001136472 A JP2001136472 A JP 2001136472A JP 3614795 B2 JP3614795 B2 JP 3614795B2
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JP
Japan
Prior art keywords
absorbing member
vehicle
shock absorbing
roof rail
garnish
Prior art date
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Expired - Fee Related
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JP2001136472A
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Japanese (ja)
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JP2001354093A (en
Inventor
一浩 関
孝志 青木
伸一 平原
養樹 本澤
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、車両衝突時に車体と乗員との間に衝撃吸収部材を展開する車両用乗員保護装置に関する。
【0002】
【従来の技術】
車両衝突時に乗員を保護するための車両用乗員保護装置として、ステアリングホイール或いはインストルメントパネルから高圧ガスでエアバッグを膨張展開させる所謂エアバッグ装置が知られている。このエアバッグ装置は、主として車両の正面衝突時に乗員の前面を保護するように機能する。
【0003】
一方、車両の側面衝突時に乗員の側面を保護すべく、センターピラーから座席の側面を通して乗員とドアとの間にエアバッグを展開させるものが提案されている(特開平3−258636号公報参照)。
【0004】
【発明が解決しようとする課題】
しかしながら、センターピラーにエアバッグ装置を収納すると、車体と座席側面との間の狭い空間に邪魔されてエアバッグのスムーズな展開が困難であり、これを回避すべく前記空間を充分に確保すると座席の設計自由度が制約されてしまう。
【0005】
そこで斯かる問題を解決するために、例えばエアバッグをルーフレールに沿わせて収納し、展開時にルーフレール下方に展開させることが考えられるが、その下方展開に当たり、ルーフレールを覆うガーニッシュを最初に破断する必要があり、これがスムーズな展開の邪魔になってしまう虞れがある。
【0006】
本発明は前述の事情に鑑みてなされたもので、従来装置の上記問題を解決してスムーズな展開が可能な車両用乗員保護装置を提供することを目的とする。
【0007】
【課題を解決するための手段】
上記目的を達成するために、請求項1の発明は、体のドア開口部の上縁を構成するルーフレールとそのルーフレールの車室側の内側面を覆うガーニッシュとの間の空間部に配置される衝撃吸収部材と、その衝撃吸収部材を車両衝突時に、ルーフレールとガーニッシュ下端部との間の隙間を通して車体と乗員との間に展開させる展開手段とを備えた車両用乗員保護装置であって、ルーフレールに取付けられるドア用のウエザーストリップに、ルーフレールとガーニッシュ下端部との間の前記隙間を閉塞するリップが一体に形成されることを特徴とする。
【0008】
また、請求項2の発明は、請求項1の発明の構成に加えて、前記衝撃吸収部材が、前記空間部に配置されてルーフレールに固定される収納ケーシング内に折り畳み状態で収納されることを特徴とする。
【0009】
また、請求項3の発明は、請求項2の発明の構成に加えて、前記収納ケーシングの下面に形成されたスリット状の開口部が、ルーフレールとガーニッシュ下端部との間の前記隙間に位置しており、その開口部を前記リップが覆っていることを特徴とする
【0010】
また、請求項の発明は、請求項1〜の何れか1項の発明の構成に加えて、前記衝撃吸収部材が、その少なくとも一部に中空構造部を有し、前記展開手段は、前記中空構造部を膨脹、展開させる高圧ガスを発生し得るガス発生手段を備えることを特徴とする
【0011】
また、請求項の発明は、請求項1〜の何れか1項の発明の構成に加えて、前記衝撃吸収部材が、車体に固定された固定点と、車体に沿って移動可能な可動点とを備えており、衝突時に展開手段で可動点を固定点から離間する方向に移動させて衝撃吸収部材を展開することを特徴とする。
【0012】
【発明の実施の形態】
本発明の実施の形態を、添付図面に例示した本発明の実施例に基づいて以下に具体的に説明する。
【0013】
添付図面において、図1〜図9は本発明の一実施例を示すもので、図1は車両用乗員保護装置を車体外側から見た図、図2は図1の部分破断図、図3は図1の3−3線断面図、図4は図1の4−4線断面図、図5は図1の5−5線断面図、図6は図2の6−6線断面図、図7は図2の7−7線断面図、図8は図7の8−8線断面図、図9は図8の9−9線断面図である。
【0014】
車両用乗員保護装置は、エアバッグに使用されているナイロン織物やポリエステル織物を三角形の膜状に形成した衝撃吸収部材1を備える。三角形の衝撃吸収部材1の3つの頂点には、それぞれ紐体2,3,4が結着される。
【0015】
フロントドアの開口部の上縁を構成するルーフレール5はアウタパネル51 及びインナパネル52 を溶接してなり(図6参照)、そのインナパネル52 の車室側の内側面がガーニッシュ12により覆われる。インナパネル52 の前記内側面の下部には、該インナパネル52 とガーニッシュ12との間の空間部に配置されて側面視で円弧状に湾曲した収納ケーシング6が重合され、この収納ケーシング6は、インナパネル52 の内側面に4本のボルト7…で固定される。前側の紐体2は固定点を構成する前部固定ピン8を介して収納ケーシング6の前端に固着されるとともに、後側の紐体3は固定点を構成する後部固定ピン9を介して収納ケーシング6の後端に固着され、更に下側の紐体4には可動点を構成する可動ピン10が固着される。
【0016】
衝撃吸収部材1は前側の前部固定ピン8を要とする扇状に折り畳まれ、収納ケーシング6の内部に収納される(図6参照)。衝撃吸収部材1を収納した状態で、収納ケーシング6の下面に形成されたスリット状の開口部61 は、ルーフレール5に装着したドア用のウエザーストリップ11と一体に形成したリップ111 によって閉塞され、これと同時に該リップ111 は、ガーニッシュ12の下端部とインナパネル52 の下端部との間の隙間も閉塞する。このとき、可動ピン10は後部固定ピン9に近接した位置に配設される。而して収納ケーシング6は、車室内に露出しないように前記ガーニッシュ12によって覆われる。
【0017】
フロントドアの開口部の後縁を構成するセンターピラー13はアウタパネル131 とインナパネル132 とを備えており(図7参照)、衝撃吸収部材1を展開させる展開手段14がブラケット15によってインナパネル132 に固定され、車室内に露出しないようにガーニッシュ12で覆われる。
【0018】
ブラケット15は一対のフランジ151 ,152 を備えており、一方のフランジ151 が一対のゴムブッシュ16,16を介してボルト17,17でインナパネル132 にフローティング支持されるとともに、他方のフランジ152 がゴムブッシュ16を介してボルト17でインナパネル132 にフローティング支持される。展開手段14のガス発生器18は直方体形状を有しており、3本のボルト19でブラケット15に固定される。
【0019】
ガス発生器18の内部には、燃焼により高圧ガスを発生する推薬20と、推薬20を発火させるスクイブ21とが収納される(図9参照)。ガス発生器18の前部にはセンターピラー13のインナパネル132 の内面に沿って延びるシリンダ22の上端が結合されており、推薬20とシリンダ22の内部とがガス通路23を介して接続される。シリンダ22の内部には外周にシール部材24を有するピストン25が摺動自在に嵌合しており、下端をピストン25に結合されたワイヤ26が、ガス発生器18に設けたガイド部材27及びブラケット15に設けたガイド部153 に案内されてセンターピラー13に沿って上方に延び、その上端が衝撃吸収部材1の可動ピン10に結合される。
【0020】
図5から明らかなように、シリンダ22の下部は、センターピラー13のインナパネル132 に設けたクリップ28に支持される。クリップ28は車体内側に向かって延びる一対の把持脚281 ,281 を備えており、両把持脚281 281 間にシリンダ22が着脱自在に把持される。
【0021】
図4から明らかなように、センターピラー13の内面を覆うガーニッシュ12には、収納ケーシング6の開口部61 に連なるスリット状の開口部121 が形成されており、この開口部121 はドア用のウエザーストリップ11と一体に形成したリップ111 によって閉塞される。
【0022】
次に、前述の構成を備えた本発明の実施例の作用について説明する。
【0023】
車両の衝突が図示せぬ加速度センサによって検出されると、ガス発生器18のスクイブ21に通電されて推薬20が発火し、発生した高圧ガスがガス通路23からシリンダ22内に流入してピストン25を下方に射出する。その結果、ピストン25に連結されたワイヤ26を介して衝撃吸収部材1の可動ピン10が下方に引き下げられ、衝撃吸収部材1は、ガーニッシュ12の下端部とインナパネル52 の下端部との間の隙間に位置する収納ケーシング6の開口部61 から引き出されて、ウエザーストリップ11のリップ111 を拡開させながら乗員とドアとの間に展開する(図2参照)。これにより、衝撃で側方に投げ出された乗員とドアとの直接の接触が防止され、乗員に加わる衝撃を緩衝することができる。
【0024】
また、側面衝突によってセンターピラー13が図3(A)の状態から(B)の状態に車体内側に向けて変形すると、シリンダ22の下端がクリップ28の把持脚281 ,281 から外れることにより該シリンダ22の破損や変形が防止される。このとき、ガス発生器18がゴムブッシュ16…を介してフローティング支持されていることにより、ガス発生器18とシリンダ22との結合部に大きな荷重が加わることが防止される。而して、シリンダ22の破損や変形が防止されることにより、ピストン25をシリンダ22に沿ってスムーズに摺動させ、衝撃吸収部材1を確実に展開させることができる。
【0025】
上述のように、衝撃吸収部材1が膜状の部材であるために、折り畳み時の寸法がコンパクトになって狭隘なスペースに容易に収納することができる。また衝撃吸収部材1が二次元的に展開するため、三次元的に展開する従来のエアバッグに比べて小さなスペースで且つ短い時間で展開させることが可能となる。しかも、展開後の衝撃吸収部材1は2個の固定ピン8、9及び1個の可動ピン10の3点で固定されるため、大きな衝撃吸収効果を発揮させることができる。
【0026】
次に、図10に基づいて本発明の第2実施例を説明する。
【0027】
第2実施例の展開手段14はセンターピラー13に沿って設けられたガイド筒31を備えており、このガイド筒31内の上部に蛇腹状に折り畳まれた袋体32が収納される。袋体32の下端と衝撃吸収部材1の可動ピン10とは、ガイド筒31に沿って形成されたスリット状のガイド溝311 に案内されて摺動する連結部材33を介して接続される。而して、車両の衝突時にガイド筒31の上端に設けたガス発生器18が高圧ガスを発生すると、袋体32がガイド筒31の内部を図示した状態に膨張して衝撃吸収部材1を展開させる。
【0028】
次に、図11に基づいて本発明の第3実施例を説明する。
【0029】
第3実施例の展開手段14は衝撃吸収部材1の後縁に沿って形成された中空構造部11 を備えており、この中空構造部11 の上端の固定点34がガス発生器18が接続されるとともに、下端の可動点35に設けた連結部材33がセンターピラー13に沿って設けたガイドレール36に摺動自在に支持される。衝撃吸収部材1が収納ケーシング6の内部に収納されるとき、前記中空構造部11 は膜状部と同様に折り畳み状態で収納される。而して、車両の衝突時にガス発生器18が高圧ガスを発生すると、中空構造部11 がガイドレール36に沿って膨張し、衝撃吸収部材1を図示した状態に展開させる。
【0030】
次に、図12に基づいて本発明の第4実施例を説明する。
【0031】
第4実施例は、衝撃吸収部材1の全体が中空構造部11 となっており、ガス発生器18から中空構造部11 に高圧ガスの供給を受けた衝撃吸収部材1は、固定点35をガイドレール36に案内されながら図示した状態に展開する。
【0032】
以上、本発明の実施例を詳述したが、本発明は前記実施例に限定されるものでなく、種々の設計変更を行うことができる。
【0033】
例えば、第1〜第4実施例では図13(A)に示すように固定点を2個、可動点を1個としたが、(D)に示すように固定点及び可動点の数をそれぞれ2個ずつとして、ルーフレールに沿って収納した衝撃吸収部材の両端の可動点をセンターピラー及びフロントピラーに沿って移動させるようにしてもよい。
【0034】
【発明の効果】
以上のように請求項1の発明によれば、ーフレールとそのルーフレールの車室側の内側面を覆うガーニッシュとの間の空間部に配置される衝撃吸収部材と、その衝撃吸収部材を車両衝突時に、ルーフレールとガーニッシュ下端部との間の隙間を通して車体と乗員との間に展開させる展開手段とを備えるので、ルーフレールの直下において、衝撃吸収部材をガーニッシュやセンタピラーに邪魔されずに、しかもガーニッシュを破断することなく車体側面に沿ってスムーズに展開させることができる。またルーフレールに取付けられるドア用のウエザーストリップに、ルーフレールとガーニッシュ下端部との間の前記隙間を閉塞するリップが一体に形成されるので、前記隙間を平時はリップで体裁よく閉塞することができ、また車両衝突時には衝撃吸収部材がリップに邪魔されずにスムーズに展開可能となり、しかも前記隙間の閉塞手段としてドア用ウエザーストリップが兼用されるため、それだけ構造の簡素化が図られる。
【0035】
また特に請求項2の発明によれば、衝撃吸収部材が、前記空間部に配置されてルーフレールに固定される収納ケーシング内に折り畳み状態で収納されるので、該ケーシングと折り畳み状態の衝撃吸収部材とで小組立体を構成でき、これをルーフレールとガーニッシュとの間の狭小な空間部にコンパクトに且つ的確にセットすることができる。
【0036】
また特に請求項3の発明によれば、収納ケーシングの下面に形成されたスリット状の開口部が、ルーフレールとガーニッシュ下端部との間の前記隙間に位置しているので、該収納ケーシングのスリット状開口部により衝撃吸収部材の展開方向をより的確に規制でき、従って、衝撃吸収部材は、ガーニッシュとの干渉(従ってガーニッシュの破断)をより確実に回避しながら展開可能となり、その展開が一層スムーズになされる。しかもその収納ケーシングのスリット状開口部を上記ウエザーストリップと一体の前記リップで体裁よく覆うことができる。
【0037】
また特に請求項の発明によれば、衝撃吸収部材が、その少なくとも一部に中空構造部を有し、展開手段は、該中空構造部を膨脹、展開させる高圧ガスを発生し得るガス発生手段を備えるので、衝撃吸収部材による乗員拘束性を高めることができる
【0038】
また特に請求項の発明によれば、衝撃吸収部材に車体に固定される固定点と車体に沿って移動可能な可動点とを設け、可動点を固定点から離間する方向に移動させて衝撃吸収部材を展開させているので、三次元的に展開する従来のエアバッグに比べて展開に要するスペース及び時間が減少し、これにより衝撃吸収部材を座席等と干渉することなくスムーズ且つ速やかに展開させることができる。しかも、展開後の衝撃吸収部材は固定点及び可動点で固定されるため、大きな衝撃吸収効果を発揮させることができる。
【図面の簡単な説明】
【図1】第1実施例による車両用乗員保護装置を車体外側から見た図
【図2】図1の部分破断図
【図3】図1の3−3線断面図
【図4】図1の4−4線断面図
【図5】図1の5−5線断面図
【図6】図2の6−6線断面図
【図7】図2の7−7線断面図
【図8】図7の8−8線断面図
【図9】図8の9−9線断面図
【図10】第2実施例に係る、前記図2に対応する図
【図11】第3実施例に係る、前記図2に対応する図
【図12】第4実施例に係る、前記図2に対応する図
【図13】本発明の他の実施例を示す図
【符号の説明】
1 衝撃吸収部材
1 中空構造部
5 ルーフレール
6 収納ケーシング
1 開口部
8 前部固定ピン(固定点)
9 後部固定ピン(固定点)
10 可動ピン(可動点)
11 ウエザーストリップ
111 リップ
12 ガーニッシュ
14 展開手段
18 ガス発生器(ガス発生手段)
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle occupant protection device that deploys an impact absorbing member between a vehicle body and an occupant during a vehicle collision.
[0002]
[Prior art]
As a vehicle occupant protection device for protecting an occupant at the time of a vehicle collision, a so-called airbag device that inflates and deploys an airbag with high-pressure gas from a steering wheel or an instrument panel is known. This airbag device mainly functions to protect the front of the occupant during a frontal collision of the vehicle.
[0003]
On the other hand, in order to protect the occupant's side face at the time of a side collision of the vehicle, there has been proposed one in which an airbag is deployed between the occupant and the door from the center pillar through the side face of the seat (see Japanese Patent Laid-Open No. 3-258636). .
[0004]
[Problems to be solved by the invention]
However, when the airbag device is stored in the center pillar, it is difficult to smoothly deploy the airbag due to the narrow space between the vehicle body and the side surface of the seat, and if the space is sufficiently secured to avoid this, the seat The degree of design freedom is limited.
[0005]
Therefore, in order to solve such a problem, for example, it is conceivable to store the airbag along the roof rail and deploy it below the roof rail at the time of deployment. There is a risk that this may interfere with smooth deployment.
[0006]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle occupant protection device that can solve the above-described problems of conventional devices and can be smoothly deployed.
[0007]
[Means for Solving the Problems]
To achieve the above object, the invention of claim 1 is arranged in the space portion between the garnish covering the inner surface of the roof rail and the vehicle compartment side of the roof rail which constitutes the upper edge of the door opening of the car body A vehicle occupant protection device comprising: a shock absorbing member, and a deploying means for deploying the shock absorbing member between a vehicle body and an occupant through a gap between a roof rail and a garnish lower end when a vehicle collides, A lip that closes the gap between the roof rail and the lower end of the garnish is formed integrally with a weather strip for the door that is attached to the roof rail .
[0008]
According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, the shock absorbing member is stored in a folded state in a storage casing disposed in the space and fixed to the roof rail. Features.
[0009]
According to a third aspect of the invention, in addition to the configuration of the second aspect of the invention, a slit-like opening formed in the lower surface of the storage casing is located in the gap between the roof rail and the lower end of the garnish. And the lip covers the opening .
[0010]
Moreover, in addition to the structure of any one of Claims 1-3 , invention of Claim 4 WHEREIN: The said shock-absorbing member has a hollow structure part in the at least one part, The said expansion | deployment means, Gas generating means capable of generating high-pressure gas for expanding and expanding the hollow structure portion is provided .
[0011]
According to a fifth aspect of the present invention, in addition to the configuration of any one of the first to fourth aspects, the impact absorbing member includes a fixed point fixed to the vehicle body, and a movable member movable along the vehicle body. The impact absorbing member is deployed by moving the movable point in a direction away from the fixed point by the deploying means at the time of collision.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be specifically described below based on the embodiments of the present invention illustrated in the accompanying drawings.
[0013]
1 to 9 show an embodiment of the present invention, FIG. 1 is a view of a vehicle occupant protection device as seen from the outside of a vehicle body, FIG. 2 is a partially cutaway view of FIG. 1, and FIG. FIG. 4 is a sectional view taken along line 4-4 of FIG. 1, FIG. 5 is a sectional view taken along line 5-5 of FIG. 1, and FIG. 6 is a sectional view taken along line 6-6 of FIG. 7 is a sectional view taken along line 7-7 in FIG. 2, FIG. 8 is a sectional view taken along line 8-8 in FIG. 7, and FIG. 9 is a sectional view taken along line 9-9 in FIG.
[0014]
The vehicle occupant protection device includes a shock absorbing member 1 in which a nylon woven fabric or a polyester woven fabric used for an airbag is formed into a triangular film shape. String bodies 2, 3, and 4 are bound to three vertices of the triangular shock absorbing member 1, respectively.
[0015]
Roof rail 5 forming the upper edge of the opening of the front door will be welded to outer panel 5 1 and the inner panel 5 2 (see FIG. 6), the inner surface of the inner panel 5 2 of the passenger compartment side is covered by the garnish 12 Is called. The lower portion of the inner surface of the inner panel 5 2, house casing 6 which is curved in an arc shape in side view is disposed in the space portion between the inner panel 5 2 and garnish 12 is polymerized, the house casing 6 It is secured by four bolts 7 ... on the inner surface of the inner panel 5 2. The front side string body 2 is fixed to the front end of the storage casing 6 via a front fixing pin 8 constituting a fixing point, and the rear side string body 3 is accommodated via a rear fixing pin 9 constituting a fixing point. The movable pin 10 is fixed to the rear end of the casing 6 and further to the lower string body 4 to form a movable point.
[0016]
The shock absorbing member 1 is folded in a fan shape that requires the front fixing pin 8 on the front side, and is housed in the housing casing 6 (see FIG. 6). The impact absorbing member 1 in a state of being housed, slit-shaped openings 61 formed on the lower surface of the housing casing 6 is closed by a lip 11 1 formed on the weather strip 11 integral with door mounted on the roof rail 5 This with the lip 11 1 at the same time, also to close the gap between the lower end portion and the inner panel 5 2 of the lower end of the garnish 12. At this time, the movable pin 10 is disposed at a position close to the rear fixed pin 9. Thus, the storage casing 6 is covered with the garnish 12 so as not to be exposed in the passenger compartment.
[0017]
The center pillar 13 constituting the rear edge of the opening of the front door includes an outer panel 13 1 and an inner panel 13 2 (see FIG. 7), and a deployment means 14 for deploying the shock absorbing member 1 is connected to the inner panel by the bracket 15. 13 2 to be fixed and covered with the garnish 12 so as not to be exposed to the vehicle interior.
[0018]
The bracket 15 includes a pair of flanges 15 1 and 15 2. One flange 15 1 is floatingly supported on the inner panel 13 2 by bolts 17 and 17 through a pair of rubber bushes 16 and 16, and the other The flange 15 2 is floatingly supported on the inner panel 13 2 by a bolt 17 through a rubber bush 16. The gas generator 18 of the deployment means 14 has a rectangular parallelepiped shape, and is fixed to the bracket 15 with three bolts 19.
[0019]
The gas generator 18 contains a propellant 20 that generates high-pressure gas by combustion and a squib 21 that ignites the propellant 20 (see FIG. 9). At the front of the gas generator 18 is coupled the upper end of the cylinder 22 extending along the inner panel 13 2 of the inner surface of the center pillar 13, connected to the inside of the propellant 20 and the cylinder 22 through the gas passage 23 Is done. A piston 25 having a seal member 24 on the outer periphery is slidably fitted inside the cylinder 22, and a wire 26 having a lower end coupled to the piston 25 is provided with a guide member 27 and a bracket provided on the gas generator 18. 15 is guided by a guide portion 15 3 provided at 15 and extends upward along the center pillar 13, and its upper end is coupled to the movable pin 10 of the shock absorbing member 1.
[0020]
As apparent from FIG. 5, the lower portion of the cylinder 22 is supported on the clip 28 provided on the inner panel 13 2 of the center pillar 13. The clip 28 includes a pair of gripping legs 28 1 and 28 1 extending toward the inside of the vehicle body, and the cylinder 22 is detachably gripped between the gripping legs 28 1 28 1 .
[0021]
As apparent from FIG. 4, the garnish 12 covering the inner surface of the center pillar 13, and the opening 12 1 slit communicating with the opening portion 61 is formed of a house casing 6, the opening 12 1 Door It is closed by a lip 11 1 formed integrally with the weather strip 11 for use.
[0022]
Next, the operation of the embodiment of the present invention having the above-described configuration will be described.
[0023]
When a vehicle collision is detected by an acceleration sensor (not shown), the squib 21 of the gas generator 18 is energized to ignite the propellant 20, and the generated high-pressure gas flows into the cylinder 22 from the gas passage 23 and moves to the piston. 25 is injected downward. Between a result, the movable pin 10 of the impact absorbing member 1 is pulled downward via the wire 26 connected to the piston 25, the impact absorbing member 1, the lower end of the garnish 12 and the inner panel 5 2 of the lower end It is drawn from the opening 61 of the housing casing 6 located in the gap, while spreading the lips 11 1 of the weather strip 11 to deploy between the occupant and the door (see FIG. 2). Thereby, the direct contact with the passenger | crew thrown to the side by the impact and a door is prevented, and the impact added to a passenger | crew can be buffered.
[0024]
Further, when the center pillar 13 is deformed from the state shown in FIG. 3A toward the inside of the vehicle body due to a side collision, the lower end of the cylinder 22 is disengaged from the gripping legs 28 1 and 28 1 of the clip 28. Damage and deformation of the cylinder 22 are prevented. At this time, since the gas generator 18 is floatingly supported via the rubber bushes 16, it is possible to prevent a large load from being applied to the joint portion between the gas generator 18 and the cylinder 22. Thus, by preventing the cylinder 22 from being damaged or deformed, the piston 25 can be smoothly slid along the cylinder 22 and the impact absorbing member 1 can be reliably deployed.
[0025]
As described above, since the shock absorbing member 1 is a film-like member, the dimensions at the time of folding become compact and can be easily stored in a narrow space. Further, since the shock absorbing member 1 is deployed two-dimensionally, it can be deployed in a smaller space and in a shorter time than a conventional airbag that is deployed three-dimensionally. Moreover, since the shock absorbing member 1 after being deployed is fixed at three points, ie, the two fixed pins 8 and 9 and the single movable pin 10, a large shock absorbing effect can be exhibited.
[0026]
Next, a second embodiment of the present invention will be described with reference to FIG.
[0027]
The unfolding means 14 of the second embodiment includes a guide cylinder 31 provided along the center pillar 13, and a bag body 32 folded in a bellows shape is accommodated in the upper portion of the guide cylinder 31. The lower end of the movable pin 10 of the impact absorbing member 1 of the bag 32 are connected by being guided by the slit-like guide groove 31 1 formed along the guide tube 31 via a connecting member 33 for sliding. Thus, when the gas generator 18 provided at the upper end of the guide cylinder 31 generates high-pressure gas at the time of a vehicle collision, the bag body 32 expands to the state shown in the figure inside the guide cylinder 31, and the impact absorbing member 1 is deployed. Let
[0028]
Next, a third embodiment of the present invention will be described with reference to FIG.
[0029]
Developing means 14 of the third embodiment has a hollow structure portion 1 1 which is formed along the rear edge of the shock absorbing member 1, the fixed point 34 of the upper end of the hollow structure 1 1 is the gas generator 18 is While being connected, the connecting member 33 provided at the movable point 35 at the lower end is slidably supported by the guide rail 36 provided along the center pillar 13. When the shock absorbing member 1 is housed in the housing casing 6, the hollow structure portion 11 is housed in a folded state in the same manner as the membrane portion. And Thus, the gas generator 18 upon collision of the vehicle to generate a high-pressure gas, the hollow structure 1 1 is expanded along the guide rails 36, to deploy the impact absorbing member 1 to the state shown.
[0030]
Next, a fourth embodiment of the present invention will be described with reference to FIG.
[0031]
Fourth embodiment, the whole of the impact absorbing member 1 has a hollow structure 1 1, the impact absorbing member 1 receives a supply of high pressure gas from the gas generator 18 to the hollow structure 1 1, fixed point 35 Is expanded to the state shown in the figure while being guided by the guide rail 36.
[0032]
As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example, A various design change can be performed.
[0033]
For example, in the first to fourth embodiments, there are two fixed points and one movable point as shown in FIG. 13A. However, as shown in FIG. The movable points at both ends of the shock absorbing member housed along the roof rail may be moved along the center pillar and the front pillar.
[0034]
【The invention's effect】
According to the present invention as described above, the shock absorbing member that will be disposed in the space portion, the impact absorbing member vehicle collision between the garnish covering the Le Fureru the inner surface of the passenger compartment side of the roof rail Sometimes it is equipped with a deployment means that deploys between the vehicle body and the occupant through the gap between the roof rail and the lower end of the garnish, so that the shock absorbing member is not obstructed by the garnish or center pillar directly under the roof rail, and the garnish Can be smoothly deployed along the side of the vehicle body without breaking. Further, since the door weather strip attached to the roof rail is integrally formed with a lip that closes the gap between the roof rail and the lower end of the garnish, the gap can be closed with a lip in a normal manner, In addition, when the vehicle collides, the shock absorbing member can be smoothly deployed without being obstructed by the lip, and the door weather strip is also used as the means for closing the gap, thereby simplifying the structure.
[0035]
In particular, according to the invention of claim 2, since the shock absorbing member is housed in a folded state in the housing casing disposed in the space and fixed to the roof rail, the casing and the shock absorbing member in the folded state Thus, a small assembly can be configured, and this can be set compactly and accurately in a narrow space between the roof rail and the garnish.
[0036]
In particular, according to the invention of claim 3, since the slit-shaped opening formed in the lower surface of the storage casing is located in the gap between the roof rail and the lower end of the garnish, The opening direction of the shock absorbing member can be more accurately regulated by the opening, so that the shock absorbing member can be deployed while more reliably avoiding interference with the garnish (and thus breaking of the garnish), and the deployment becomes smoother. Made. In addition, the slit-like opening of the storage casing can be covered with the lip integrated with the weather strip.
[0037]
In particular, according to the invention of claim 4 , the shock absorbing member has a hollow structure part at least in part, and the developing means is a gas generating means capable of generating a high-pressure gas for expanding and expanding the hollow structure part. Therefore, the occupant restraint by the shock absorbing member can be enhanced .
[0038]
In particular, according to the invention of claim 5 , the impact absorbing member is provided with a fixed point fixed to the vehicle body and a movable point movable along the vehicle body, and the movable point is moved in a direction away from the fixed point for impact. Since the absorbing member is deployed, the space and time required for deployment are reduced compared to conventional airbags that are deployed three-dimensionally, which allows the shock absorbing member to be deployed smoothly and quickly without interfering with the seat or the like. Can be made. Moreover, since the shock absorbing member after deployment is fixed at the fixed point and the movable point, a large shock absorbing effect can be exhibited.
[Brief description of the drawings]
1 is a view of a vehicle occupant protection device according to a first embodiment as seen from the outside of a vehicle body. FIG. 2 is a partially cutaway view of FIG. 1. FIG. FIG. 5 is a sectional view taken along line 4-5 of FIG. 1. FIG. 6 is a sectional view taken along line 5-5 of FIG. 7 is a cross-sectional view taken along line 8-8 in FIG. 7. FIG. 9 is a cross-sectional view taken along line 9-9 in FIG. 8. FIG. 10 is a diagram corresponding to FIG. FIG. 12 is a diagram corresponding to FIG. 2 according to the fourth embodiment. FIG. 13 is a diagram showing another embodiment of the present invention.
DESCRIPTION OF SYMBOLS 1 Shock absorption member 1 1 Hollow structure part 5 Roof rail 6 Storage casing 6 1 Opening part 8 Front part fixing pin (fixing point)
9 Rear fixing pin (fixing point)
10 Movable pin (movable point)
11 weather strip 11 1 lip 12 garnish 14 unfolding means 18 gas generator (gas generating means)

Claims (5)

体のドア開口部の上縁を構成するルーフレール(5)とそのルーフレール(5)の車室側の内側面を覆うガーニッシュ(12)との間の空間部に配置される衝撃吸収部材(1)と、
その衝撃吸収部材(1)を車両衝突時に、ルーフレール(5)とガーニッシュ(12)下端部との間の隙間を通して車体と乗員との間に展開させる展開手段(14)とを備えた車両用乗員保護装置であって、
ルーフレール(5)に取付けられるドア用のウエザーストリップ(11)に、ルーフレール(5)とガーニッシュ(12)下端部との間の前記隙間を閉塞するリップ(11 1 )が一体に形成されることを特徴とする、車両用乗員保護装置。
Shock absorbing member that will be placed in the space between the roof rail which constitutes the upper edge of the door opening of the vehicle body (5) and the garnish (12) covering the inner surface of the passenger compartment side of the roof rail (5) (1 )When,
A vehicle occupant provided with deployment means (14) for deploying the shock absorbing member (1) between the vehicle body and the occupant through a gap between the roof rail (5) and the lower end of the garnish (12) at the time of a vehicle collision. A protective device,
The door weather strip (11) attached to the roof rail (5 ) is integrally formed with a lip (11 1 ) that closes the gap between the roof rail (5) and the lower end of the garnish (12). An occupant protection device for a vehicle.
前記衝撃吸収部材(1)は、前記空間部に配置されてルーフレール(5)に固定される収納ケーシング(6)内に折り畳み状態で収納されることを特徴とする、請求項1記載の車両用乗員保護装置。2. The vehicle according to claim 1, wherein the shock absorbing member (1) is stored in a folded state in a storage casing (6) disposed in the space and fixed to the roof rail (5). Crew protection device. 前記収納ケーシング(6)の下面に形成されたスリット状の開口部(61 )が、ルーフレール(5)とガーニッシュ(12)下端部との間の前記隙間に位置しており、その開口部(6 1 )を前記リップ(11 1 )が覆っていることを特徴とする、請求項2記載の車両用乗員保護装置 A slit-like opening (6 1 ) formed in the lower surface of the storage casing (6) is located in the gap between the roof rail (5) and the lower end of the garnish (12) , and the opening ( 6. The vehicle occupant protection device according to claim 2 , wherein the lip (11 1 ) covers 6 1 ) . 前記衝撃吸収部材(1)は、その少なくとも一部に中空構造部(11 )を有し、前記展開手段(14)は、前記中空構造部(11 )を膨脹、展開させる高圧ガスを発生し得るガス発生手段(18)を備えることを特徴とする、請求項1〜の何れか1項に記載の車両用乗員保護装置。The shock absorbing member (1) has a hollow structure part (1 1 ) in at least a part thereof, and the expansion means (14) generates a high-pressure gas that expands and expands the hollow structure part (1 1 ). characterized in that it comprises a gas generating means capable of (18), the vehicle occupant protection apparatus according to any one of claims 1-3. 前記衝撃吸収部材(1)が、車体に固定された固定点(8,9,34)と、車体に沿って移動可能な可動点(10,35)とを備えており、衝突時に展開手段(14)で可動点(10,35)を固定点(8,9,34)から離間する方向に移動させて衝撃吸収部材(1)を展開することを特徴とする、請求項1〜の何れか1項に記載の車両用乗員保護装置。The shock absorbing member (1) includes a fixed point (8, 9, 34) fixed to the vehicle body and a movable point (10, 35) movable along the vehicle body. 14) is moved in a direction away moving point (10, 35) from a fixed point (8,9,34), characterized in that deploying the shock absorbing member (1), any claim 1-4 or occupant protection apparatus for a vehicle according to item 1.
JP2001136472A 2001-05-07 2001-05-07 Vehicle occupant protection device Expired - Fee Related JP3614795B2 (en)

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