JP3843770B2

JP3843770B2 - Crew restraint system

Info

Publication number: JP3843770B2
Application number: JP2001205253A
Authority: JP
Inventors: 幹根林
Original assignee: Toyoda Gosei Co Ltd
Current assignee: Toyoda Gosei Co Ltd
Priority date: 2001-07-05
Filing date: 2001-07-05
Publication date: 2006-11-08
Anticipated expiration: 2021-07-05
Also published as: JP2003019938A

Description

【０００１】
【発明の属する技術分野】
本発明は、車両の横転や転回等の転倒時に、車両における窓を遮蔽して、車内側に乗員を拘束可能な乗員拘束装置に関する。
【０００２】
【従来の技術とその課題】
従来の乗員拘束装置では、特開平５−３１００９８号公報等に知られているように、車両の転倒が予測されるような場合には、ロールオーバセンサが車両のロールオーバを検知して、窓周縁に収納されたベルト状若しくはシート状の遮蔽材を、窓を遮蔽するように、窓周縁から繰り出していた。
【０００３】
しかし、従来の遮蔽材は、窓周縁における上縁側から下向きに繰り出されるものであった。
【０００４】
そのため、乗員が窓周縁に寄りかかっているような場合には、乗員と窓との間に、遮蔽材が入り難い場合を生じさせていた。
【０００５】
また、この種の乗員拘束装置では、乗員保護の見地から、遮蔽材によって、窓を、極力広い範囲で遮蔽することが望ましい。
【０００６】
本発明は、上述の課題を解決するものであり、乗員が窓周縁に寄りかかっていても、ロールオーバ検知時、円滑に、窓を遮蔽可能に遮蔽材を繰り出すことができて、かつ、窓を広い範囲で遮蔽することが可能な乗員拘束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】
本発明に係る乗員保護装置は、車両のロールオーバ検知時に、窓を遮蔽可能に窓の周縁から遮蔽材が繰り出される構成の乗員拘束装置であって、
遮蔽材が、それぞれ、遮蔽時に窓の前部側を覆う前側遮蔽材と、遮蔽時に窓の後部側を覆う後側遮蔽材と、を備えて構成され、
前側遮蔽材は、繰り出し時に、窓周縁の下縁側から実質的に上昇するように、少なくとも、窓周縁の前方側の略上下方向に延びる縦縁側部位に収納され、
後側遮蔽材は、繰り出し時に、窓周縁の下縁側から実質的に上昇するように、少なくとも、窓周縁の後方側の略上下方向に延びる縦縁側部位に収納されて、
窓周縁の下縁側部位内には、
前側遮蔽材と連結されて、作動時、前側遮蔽材との連結部位を窓周縁の下縁側に沿わせて後方側に繰り出し可能とする前側繰り出し手段と、
後側遮蔽材と連結されて、作動時、後側遮蔽材との連結部位を窓周縁の下縁側に沿わせて前方側に繰り出し可能とする後側繰り出し手段と、
が配設され、
前側繰り出し手段と後側繰り出し手段とが、駆動源を共用させて構成されていることを特徴とする。
【０００８】
【発明の効果】
本発明の乗員拘束装置では、ロールオーバ検知時に、前側繰り出し手段及び後側繰り出し手段が作動して、前側遮蔽材及び後側遮蔽材を、それぞれ、窓周縁の下縁側から実質的に上昇させるように、繰り出させる。そのため、乗員が窓周縁に寄りかかっていても、前側遮蔽材及び後側遮蔽材が、それぞれ、乗員を引き起こすように下方から干渉して、円滑に、繰り出されることとなる。
【０００９】
また、本発明の乗員拘束装置では、前側遮蔽材が、窓周縁の前方側の縦縁側部位から、窓周縁の下縁側に沿って、窓の前部側を覆うように後方側に繰り出され、後側遮蔽材が、窓周縁の後方側の縦縁側部位から、窓周縁の下縁側に沿って、窓の後部側を覆うように前方側に繰り出されることから、前側遮蔽材で窓の前部側を覆い、後側遮蔽材で窓の後部側を覆うように遮蔽することとなって、窓を、広範囲にわたって遮蔽することができる。
【００１０】
従って、本発明の乗員拘束装置では、乗員が窓周縁に寄りかかっていても、ロールオーバ検知時、円滑に、窓を遮蔽可能に遮蔽材を繰り出すことができて、かつ、窓を広い範囲で遮蔽することが可能である。
【００１１】
また、本発明の乗員拘束装置では、前側繰り出し手段及び後側繰り出し手段を窓周縁の下縁側部位内に配設させている。窓周縁の下縁側部位には、窓周縁における上縁側部位や縦縁側部位に比べてスペースに余裕があることから、前側繰り出し手段及び後側繰り出し手段を容易に配設させることができる。
【００１２】
さらに、本発明の乗員拘束装置では、前側繰り出し手段と後側繰り出し手段とが、駆動源を共用させている構成であることから、前側繰り出し手段及び後側繰り出し手段をコンパクトにすることができて、窓周縁の下縁側部位への搭載が一層容易となる。また、本発明の乗員拘束装置では、前側繰り出し手段と後側繰り出し手段とが、駆動源を共用させている構成であることから、前側繰り出し手段と後側繰り出し手段とが略同時に作動することとなって、前側遮蔽材と後側遮蔽材とが略同時に繰り出されることとなる。その結果、ロールオーバ検知時に、窓を迅速に広い範囲で遮蔽することができる。
【００１３】
【発明の実施の形態】
以下、本発明の一実施形態を図面に基づいて説明する。
【００１４】
本発明の第１実施形態である乗員拘束装置Ｓ１は、図１・２・８に示すように、車内側Ｉの窓ＷＦの周縁から繰り出されて、窓ＷＦの車内側Ｉを遮蔽可能な遮蔽材４１と、窓ＷＦの周縁から膨張して、遮蔽材４１と乗員との間に配置可能なエアバッグ７７と、を備えて構成されている。
【００１５】
遮蔽材４１は、遮蔽時に窓ＷＦの前部側を覆う前側遮蔽材４３と、遮蔽時に窓ＷＦの後部側を覆う後側遮蔽材５４と、を備えて構成されている。そして、前側遮蔽材４３は前側繰り出し手段６６Ｆにより繰り出され、後側遮蔽材５４は後側繰り出し手段６６Ｒにより繰り出される構成であり、前側繰り出し手段６６Ｆと後側繰り出し手段６６Ｒとは、駆動源としてのプリテンショナー６７により作動される。また、エアバッグ７７は、インフレーター８４からの膨張用ガスにより、展開膨張することとなる。プリテンショナー６７とインフレーター８４とは、制御装置９０により作動が制御され、制御装置９０は、ロールオーバセンサ８８からの車両の転倒が予測されるようなロールオーバ検知信号を入力した際、プリテンショナー６７とインフレーター８４とを作動させることとなる。なお、制御装置９０とロールオーバセンサ８８とは、車両の所定位置に配置されている。
【００１６】
遮蔽材４１が配設されるフロントドアＦＤは、図２〜４に示すように、車外側Ｏのドアフレーム１２と、ドアフレーム１２の車内側Ｉにおける窓ＷＦの周縁に配置されるドアフレームガーニッシュ２１と、ドアフレーム１２の車内側Ｉにおけるガーニッシュ２１の下方に配置されるドアトリム３９と、を備えて構成されている。
【００１７】
ドアフレーム１２は、板金製として、窓ＷＦを中心としたその周縁にそれぞれ配置される上縁側の上縁部１３、前後両端側で略上下方向に配置される前・後縦縁部１４・１５、及び、下縁側の下縁部１６を、備えて構成されている。前縦縁部１４の上下端付近には、前側遮蔽材４３を取り付けるための取付孔１４ａ・１４ｂが形成されており、後縦縁部１５の上下端付近には、後側遮蔽材５４を取り付けるための取付孔１５ａ・１５ｂが形成されている（図６・７参照）。
【００１８】
ドアフレームガーニッシュ２１は、合成樹脂製として、窓ＷＦを中心としたその周縁にそれぞれ配置される上縁側の上縁部２２、前後両端側で略上下方向に配置される前・後縦縁部２３・２４、及び、下縁側の下縁部２５、を備えて構成されている。上縁部２２・前縦縁部２３・後縦縁部２４は、窓ＷＦの周縁におけるドアフレーム１２の上縁部１３・前縦縁部１４・後縦縁部１５の車内側に嵌合可能な断面略Ｕ字形状としている（図３〜５参照）。
【００１９】
収納した前側遮蔽材４３を覆うガーニッシュ２１の前縦縁部２３には、ドアフレーム１２の取付孔１４ａ・１４ｂに挿入係止される金属製の係止ピン３３が埋設されている（図６参照）。また、前縦縁部２３には、図３に示すように、収納された前側遮蔽材４３の繰り出し時に、前側遮蔽材４３に押されて開く扉部２７が配設されている。扉部２７は、薄肉のヒンジ部２８を車内側端部に備えて、開き易く構成されている。そして、折り畳まれて収納された前側遮蔽材４３の後述する縦縁側収納部位５０は、扉部２７に後方側を覆われて、扉部２７とドアフレーム１２の前縦縁部１４との間に収納されている。
【００２０】
収納した後側遮蔽材５４を覆うガーニッシュ２１の後縦縁部２４には、前縦縁部２３と同様に、ドアフレーム１２の取付孔１５ａ・１５ｂに挿入係止される金属製の係止ピン３３が埋設されている（図７参照）。そして、後縦縁部２４にも、図４に示すように、収納された後側遮蔽材５４の繰り出し時に、後側遮蔽材５４に押されて開く扉部２９が配設されている。扉部２９は、扉部２７と同様に、薄肉のヒンジ部３０を車内側端部に備えて、開き易く構成されている。そして、折り畳まれて収納された後側遮蔽材５４の後述する縦縁側収納部位６１は、扉部２９に前方側を覆われて、扉部２９とドアフレームの後縦縁部１５との間に収納されている。
【００２１】
また、ガーニッシュ２１の下縁部２５の上縁側には、図５に示すように、車両の前後方向に延びる薄肉の破断予定部３６を配置させて、カバー部３５が配設されている。カバー部３５は、折り畳まれて収納されている前側遮蔽材４３の下縁側収納部位５１及び後側遮蔽材５４の下縁側収納部位６２の上方を、それぞれ、覆うとともに、前側繰り出し手段６６Ｆにおける後述する前側牽引材６９の先端６９ａの部位の移動する軌跡と、後側繰り出し手段６６Ｒにおける後述する後側牽引材７０の先端７０ａの部位の移動する軌跡と、の上方を覆っている。そして、前側・後側牽引材６９・７０の移動時（図１・２・８参照）、前側・後側遮蔽材４３・５４により、破断予定部３６が破断されて開口３７が形成される。そして、この開口３７に、展開した前側・後側遮蔽材４３・５４の下縁部４５・５６が、配置されることとなる。
【００２２】
なお、実施形態では、ガーニッシュ２１は、相溶性を有した二色成形品とされている。すなわち、扉部２７・２９・ヒンジ部２８・３０・カバー部３５が、前側・後側遮蔽材４３・５４（遮蔽材４１）の展開時に開き易いように、ポリオレフィン系熱可塑性エラストマー等から形成され、他の部位が、強度を確保できるように、扉部２７等の材料と相溶性を有した硬質のポリプロピレン等の合成樹脂から形成されている。
【００２３】
また、ドアＦＤ周縁のボディ１側は、図３・４に示すように、インナパネル２とアウタパネル３とを配設させて構成され、さらに、そのボディ１側には、ドアＦＤの外周縁をシールするウェザストリップ５が配設されている。そして、ウェザストリップ５は、ドアＦＤを閉めた際、ガーニッシュ２１における車内側Ｉに突出した頂部２１ａやドアＦＤにおけるガーニッシュ２１から離れた下部側の前縁・下縁・後縁に圧接されることとなる。ガーニッシュ２１の車内側Ｉに突出する頂部２１ａは、上縁部２２・前縦縁部２３・後縦縁部２４に配設されている。また、図３・４に示す符号１８の部材は、ドアフレーム１２の外縁側に固着されたウェザストリップであり、このウェザストリップ１８は、ドアＦＤを閉めた際、ボディ１側のアウタパネル３に圧接されることとなる。さらに、符号１９の部材は、ガラスランである。
【００２４】
遮蔽材４１は、可撓性を有したポリエステル糸やポリアミド糸等からなる布材等から形成されるシート状としており、図１・２・８に示すように、遮蔽時に窓ＷＦの車内側Ｉにおける前部側を覆う前側遮蔽材４３と、遮蔽時に窓ＷＦの車内側Ｉにおける後部側を覆う後側遮蔽材５４と、を備える構成である。
【００２５】
前側遮蔽材４３は、繰り出し完了時の形状を、収納側の前縦縁側部位ＦＶＷにおける縦縁部４６の上下を頂点４７・４８とするとともに、窓ＷＦ周縁の下縁に沿って延びる先端部位４９を頂点として、上側頂点部位４７と先端側頂点部位４９とを結ぶ斜辺部４４を有し、かつ、下側頂点部位４８と先端側頂点部位４９とを結ぶ下縁部４５を有する略三角形板状としている。そして、上側と下側の頂点部位４７・４８が、それぞれ、前縦縁側部位ＦＶＷにおけるドアフレーム１２の前縦縁部１４の上下に固定され、先端側の頂点部位４９が、前側繰り出し手段６６Ｆにおける前側牽引材６９の先端６９ａに連結されている。また、前側遮蔽材４３は、繰り出し完了時に、下縁部４５が、下縁側部位ＤＷの略全長にわたって配置される構成とされている。
【００２６】
前側遮蔽材４３は、図１・２に示すように、前縦縁側部位ＦＶＷと下縁側部位ＤＷとの交差する交差隅部Ｃ１をまたぐように、略Ｌ字形状に折り畳まれて収納されている。具体的には、前側遮蔽材４３は、窓ＷＦ周縁の前縦縁側部位ＦＶＷにおけるドアフレーム１２の前縦縁部１４とドアフレームガーニッシュ２１の前縦縁部２３との間に折り畳まれて収納されるとともに、窓ＷＦ周縁の下縁側部位ＤＷの前方側におけるドアフレーム１２の下縁部１６とドアフレームガーニッシュ２１の下縁部２５との間に、折り畳まれて収納されている。
【００２７】
実施形態では、上側・下側頂点部位４７・４８は、図６に示すように、それぞれ、取付孔４７ａ・４８ａを備えて構成されている。そして、ドアフレーム１２の車内側に配置されるガーニッシュ２１に埋設された係止ピン３３を、取付孔４７ａ・４８ａに挿通させて、ドアフレーム１２の前縦縁部１４の上下に設けられた取付孔１４ａ・１４ｂに係止させて取り付けることにより、上側・下側頂点部位４７・４８が、ドアフレーム１２に固定されている。先端側頂点部位４９は、前側牽引材６９の先端６９ａに連結されている。
【００２８】
乗員に近い側に収納される後側遮蔽材５４は、繰り出し完了時に、前側遮蔽材４３より車内側Ｉに配置される構成である。そして、後側遮蔽材５４は、繰り出し完了時の形状を、収納側の後縦縁側部位ＲＶＷにおける縦縁部５７の上下を頂点５８・５９とするとともに、窓ＷＦ周縁の下縁に沿って延びる先端部位６０を頂点として、上側頂点部位５８と先端側頂点部位６０とを結ぶ斜辺部５５を有し、かつ、下側頂点部位５９と先端側頂点部位６０とを結ぶ下縁部５６を有する略三角形板状としている。また、後側遮蔽材５４では、上側と下側の頂点部位５８・５９が、それぞれ、後縦縁側部位ＲＶＷにおけるドアフレーム１２の後縦縁部１５の上下に固定され、先端側の頂点部位６０が、後側繰り出し手段６６Ｒにおける後側牽引材７０の先端７０ａに連結されている。また、後側遮蔽材５４は、繰り出し完了時に、下縁部５６が、下縁側部位ＤＷの略全長にわたって配置されて、長さ寸法Ｌ２を、前側遮蔽材４３の下縁部４５の長さ寸法Ｌ１と、略等しくされている。なお、実施形態では、前側遮蔽材４３における下縁部４５の長さ寸法Ｌ１と、後側遮蔽材５４における下縁部５６の長さ寸法Ｌ２と、は、下縁側部位ＤＷの長さ寸法より若干小さく設定されて、前側・後側遮蔽材４３・５４の繰り出し完了時において、斜辺部４４・５５の部位に、それぞれ、テンションを生じさせ易いように設定されている。
【００２９】
後側遮蔽材５４は、図１・２に示すように、後縦縁側部位ＲＶＷと下縁側部位ＤＷとの交差する交差隅部Ｃ２をまたぐように、逆Ｌ字形状に折り畳まれて収納されている。具体的には、後側遮蔽材５４は、窓ＷＦ周縁の後縦縁側部位ＲＶＷにおけるドアフレーム１２の後縦縁部１５とドアフレームガーニッシュ２１の後縦縁部２４との間に折り畳まれて収納されるとともに、窓ＷＦ周縁の下縁側部位ＤＷの後方側におけるドアフレーム１２の下縁部１６とドアフレームガーニッシュ２１の下縁部２５との間に、折り畳まれて収納されている。
【００３０】
実施形態では、上側・下側頂点部位５８・５９は、前側遮蔽材４３と同様に、図７に示すごとく、それぞれ、取付孔５８ａ・５９ａを備えて構成されている。そして、ドアフレーム１２の車内側に配置されるガーニッシュ２１に埋設された係止ピン３３を、取付孔５８ａ・５９ａに挿通させて、ドアフレーム１２の後縦縁部１５の上下に設けられた取付孔１５ａ・１５ｂに係止させて取り付けることにより、上側・下側頂点部位５８・５９が、ドアフレーム１２に固定されている。また、先端側頂点部位６０は、後側牽引材７０の先端７０ａに連結されている。
【００３１】
また、前側・後側遮蔽材４３・５４は、図１０・１１に示すように、前側遮蔽材４３の収納時における下縁側収納部位５１の長さ寸法Ｌ３と、後側遮蔽材５４の収納時における下縁側収納部位６２の長さ寸法Ｌ４と、を略等しくするように、折り畳まれて収納されることとなる。具体的には、前側遮蔽材４３は、図１０に示すように、平らに展開させた状態から、窓ＷＦの周縁に固定されることとなる縦縁部４６の長さ寸法、すなわち、上側頂点部位４７と下側頂点部位４８との間の距離を変えないように、上方側より下縁側の折幅を大きくしつつ、斜辺部４４側を縦縁部４６側に接近させるようにして、折り畳んでいる。実施形態の場合には、平らに展開した状態における上側頂点部位４７を扇の中心として、上側頂点部位４７側より下縁部４５側の折幅を広くするような扇折りとしている。後側遮蔽材５４は、図１１に示すように、平らに展開させた状態から、先端側頂点部位６０付近を、縦縁部５７と略平行な略鉛直方向に沿った折目をつけて、先端側頂点部位６０を下縁部５６側（下側頂点部位５９側）に接近させるように蛇腹折りした後、窓ＷＦの周縁に固定されることとなる縦縁部５７の長さ寸法、すなわち、上側頂点部位５８と下側頂点部位５９との間の距離を変えないように、上方側より下縁側の折幅を大きくしつつ、斜辺部５５側を縦縁部５７側に接近させるように、上側頂点部位５８を扇の中心として、扇折りして、折り畳んでいる。
【００３２】
前側遮蔽材４３を後方側に繰り出させる繰り出し手段６６Ｆは、前側遮蔽材４３と連結されて、前側遮蔽材４３を牽引する可撓性を有した前側牽引材６９と、前側牽引材４３の牽引方向を規制するガイドローラ７１・７２と、から構成されている。後側遮蔽材５４を前方側に繰り出させる繰り出し手段６６Ｒは、後側遮蔽材５４と連結されて、後側遮蔽材５４を牽引する可撓性を有した後側牽引材７０と、後側遮蔽材５４の牽引方向を規制するガイドローラ７３・７４と、から構成されている。そして、前側牽引材６９及び後側牽引材７０は、駆動源としてのプリテンショナー６７を共用しており、プリテンショナー６７の本体６８に、それぞれ、連結されて、前側遮蔽材４３及び後側遮蔽材５４を牽引可能な構成とされている。
【００３３】
本体６８は、インフレーターのガス圧を利用して、前側・後側牽引材６９・７０を牽引するシリンダタイプである。前側牽引材６９は、先端６９ａを前側遮蔽材４３の先端側頂点部位４９に連結されて、窓ＷＦの周縁における下縁側部位ＤＷの交差隅部Ｃ２の下方に配置されるガイドローラ７１と、本体６８の上方に配置されるガイドローラ７２と、に牽引方向を規制されて、前側遮蔽材４３の先端側頂点部位４９を、窓ＷＦ周縁の下縁側に沿わせて、後方に牽引可能な構成とされている。後側牽引材７０は、先端７０ａを後側遮蔽材５４の先端側頂点部位６０に連結されて、下縁側部位ＤＷの交差隅部Ｃ１の下方に配置されるガイドローラ７３と、本体６８の上方におけるガイドローラ７２の前方に配置されるガイドローラ７４と、に牽引方向を規制されて、後側遮蔽材５４の先端側頂点部位６０を、窓ＷＦ周縁の下縁側に沿わせて、前方に牽引可能な構成とされている。なおプリテンショナー６７及びガイドレール７１・７２・７３・７４は、窓ＷＦ周縁の下縁側部位ＤＷにおけるドアフレーム１２の下縁部１６の車内側に、取付固定されている。
【００３４】
エアバッグ７７は、図１・５・８に示すように、インフレーター８４からの膨張用ガスを流入させて膨らむ袋状として、実施形態の場合、略長方形板状としている。エアバッグ７７は、膨張用ガスを流入させて膨らむ本体部７８と、本体部７８に膨張用ガスを流入させる円筒状のガス流入部７９と、を備えて構成されている。ガス流入部７９は、本体部７８の上部後側に配置されて、インフレーター８４と接続されている。エアバッグ７７の上端側には、ルーフサイドレール部ＲＲにおけるボディ１側のインナパネル２に固定される複数の取付部８０が配設されている。各取付部８０には、図５に示すように、取付ブラケット８１が固着され、取付ブラケット８１ごと、各取付部８０がインナパネル２にボルト８２止めされている。
【００３５】
そして、エアバッグ７７は、各取付部８０を利用して、展開膨張時の本体部７８の上端７８ａ側をインナパネル２に固定させているだけであって、展開膨張時の本体部下端７８ｂ側が、自由端として、窓ＷＦと略直交する方向の車内側Ｉ方向や車外側Ｏ方向へ揺動可能として、配設されている。
【００３６】
また、エアバッグ７７は、下端７８ｂ側から上端７８ａ側に蛇腹状に折り畳まれて、窓ＷＦの周縁における上縁側部位ＵＷに対応したルーフサイドレール部ＲＲの車内側のルーフヘッドライニング８に覆われて収納されている。ルーフヘッドライニング８は、合成樹脂製として、その下縁には、車内側に開き可能な扉部８ａが配設されている。そして、展開膨張時、エアバッグ７７は、扉部８ａを押し開いて、下方へ突出し、乗員と遮蔽材４１との間に配置されることとなる。
【００３７】
なお、展開膨張時、エアバッグ７７は、窓ＷＦの後部車内側、センターピラー部ＣＰの車内側におけるセンターピラーガーニッシュ９の上部側、及び、リヤドアＲＤの窓ＷＲの前部車内側を覆うこととなる。
【００３８】
さらに、実施形態の場合、エアバッグ７７は、展開膨張完了時のピラー部ＣＰを除く下端７８ｂの略全長を、繰り出し完了時の後側遮蔽材５４と水平方向で重ね可能に、配設されている（図８参照）。
【００３９】
インフレーター８４は、シリンダタイプとして、ルーフサイドレール部ＲＲのインナパネル２に、取付ブラケット８５に保持された状態で、取付ボルト８６を利用して、取り付けられている。
【００４０】
次に、第１実施形態の乗員拘束装置Ｓ１の車両への搭載について述べる。まず、遮蔽材４１（前側・後側遮蔽材４３・５４）を折り畳む。具体的には、平らに展開した状態の前側遮蔽材４３を、図１０のＡ・Ｂに示すように、上側頂点部位４７を扇の中心とし、上側頂点部位４７側より下縁部４５側の折幅を広くして、斜辺部４４を縦縁部４６に接近させるように扇折りし、次いで、図１０のＣに示すように、折り崩れ防止用の破断可能な複数のテープ材６４で、折り畳んだ前側遮蔽材４３をくるんでおく。この折り畳み状態では、縦縁部４６の位置する上側頂点部位４７から下側頂点部位４８までの折り畳み部位が、ドアフレーム１２の前縦縁部１４とドアフレームガーニッシュ２１の前縦縁部２３との間に収納される縦縁側収納部位５０となり、下縁部４５の位置する下側頂点部位４８から先端側頂点部位４９までの折り畳み部位が、ドアフレーム１２の下縁部１６とドアフレームガーニッシュ２１の下縁部２５との間に収納される下縁側収納部位５１となる。なお、上側・下側頂点部位４７・４８の取付孔４７ａ・４８ａには、係止ピン３３を挿入させておく。
【００４１】
後側遮蔽材５４は、平らに展開した状態から、まず、図１１のＡに示すように、先端側頂点部位６０付近を、縦縁部５７と略平行な略鉛直方向に沿った折目をつけて、蛇腹折りする。次いで、図１１のＢ・Ｃに示すように、上側頂点部位５８を扇の中心とし、上側頂点部位５８側より下縁部５６側の折幅を広くして、斜辺部５５を縦縁部５７に接近させるように扇折りし、図１１のＤに示すように、折り崩れ防止用の破断可能な複数のテープ材６４で、折り畳んだ後側遮蔽材５４をくるむ。この折り畳み状態では、縦縁部４７の位置する上側頂点部位５８から下側頂点部位５９までの折り畳み部位が、ドアフレーム１２の後縦縁部１５とドアフレームガーニッシュ２１の後縦縁部２４との間に収納される縦縁側収納部位６１となり、下縁部５６の位置する下側頂点部位５９から先端側頂点部位６０までの折り畳み部位が、ドアフレーム１２の下縁部１６とドアフレームガーニッシュ２１の下縁部２５との間に収納される下縁側収納部位６１となる。このとき、後側収納部材５４における下縁側収納部位６１の長さ寸法Ｌ４が、前側収納部材４３における下縁側収納部位５１の長さ寸法Ｌ３と略等しくなるように、後側収納部材５４を折り畳む。具体的には、先端側頂点部位６０付近の蛇腹折り量を調整して、長さ寸法Ｌ４を調整することとなる。なお、上側・下側頂点部位５８・５９の取付孔５８ａ・５９ａには、係止ピン３３を挿入させておく。また、ドアフレーム１２の車内側の面に、前側牽引材６９及び後側牽引材７０を連結させたプリテンショナー６７と、ガイドローラ７１・７２・７３・７４と、を取り付けておく。
【００４２】
そして、前側遮蔽材４３の上側・下側頂点部位４７・４８をガーニッシュ前縦縁部２３とともに、ドアフレーム１２の前縦縁部１４に取り付け、同時に、後側遮蔽材５４の上側・下側頂点部位５８・５９を、ガーニッシュ後縦縁部２４とともに、ドアフレーム１２の後縦縁部１５に取り付ける。次いで、前側遮蔽材４３の先端側頂点部位４９を前側牽引材６９の先端６９ａに連結させ、後側遮蔽材５４の先端側頂点部位６０を後側牽引材７０の先端７０ａに連結させる。そして、ガーニッシュ２１の上縁部２２・下縁部２５を、ドアフレーム１２の上縁部１３・下縁部１６に嵌合させつつ、適宜、図示しない箇所でボルト等を利用して、ガーニッシュ２１をドアＦＤのドアフレーム１２に固定し、ドアトリム３９をドアフレーム下縁部１６の下部に取り付けた後、ドアＦＤをボディ１に取り付ければ、前側・後側遮蔽材４３・５４、前側・後側繰り出し手段６６Ｆ・６６Ｒ、及び、プリテンショナー６７を、車両に搭載することができる。
【００４３】
また、エアバッグ７７の車両への搭載について述べれば、エアバッグ７７を上端７８ａ側に折り畳むとともに、折り崩れしないように、エアバッグ７７を破断可能な図示しないテープ材でくるんでおく。次いで、エアバッグ７７の各取付部８０に取付ブラケット８１を取り付けておくとともに、ガス流入部７９をインフレーター８４に接続させ、インフレーター８４に取付ブラケット８５を取り付けて、エアバッグ組付体を形成しておく。その後、各取付ブラケット８１・８５をインナパネル２にボルト８２・８６止めして、ルーフヘッドライニング８をインナパネル２に取り付ければ、エアバッグ７７とインフレーター８４とを車両に搭載することができる。そして、前側・後側遮蔽材４３・５４、繰り出し手段６６Ｆ・６６Ｒ、プリテンショナー６７、エアバッグ７７、及び、インフレーター８４を、車両に取り付けることにより、乗員拘束装置Ｓ１が車両に搭載されることとなる。
【００４４】
なお、制御装置９０とロールオーバセンサ８８とは、別途、車両の所定位置に取り付けておき、乗員拘束装置Ｓ１の車両への搭載時、プリテンショナー６７やインフレーター８４から延びる図示しないリード線を制御装置９０に結線させることとなる。
【００４５】
そして、乗員拘束装置Ｓ１の車両への搭載後、制御装置９０が、車両の転倒が予測されるロールオーバ検知信号をロールオーバセンサ８８から入力すると、駆動源としてのプリテンショナー６７を作動させる。すると、本体６８が、前側牽引材６９の先端６９ａを後方へ移動するように、前側牽引材６９を牽引することから、前側遮蔽材４３が、図２〜５の二点鎖線や図８の実線で示すように、折り畳まれた状態から、先端側頂点部位４９が後方に移動して、ガーニッシュ前縦縁部２３の扉部２７を押し開くとともに、ガーニッシュ下縁部２５の破断予定部３６を開口させて、窓ＷＦの前方側を遮蔽するように、展開することとなる。同時に、本体６８が、後側牽引材７０の先端７０ａを前方へ移動するように、後側牽引材７０を牽引することから、後側遮蔽材５４が、図２〜５の二点鎖線や図８の実線で示すように、折り畳まれた状態から、先端側頂点部位６０が前方に移動して、ガーニッシュ後縦縁部２４の扉部２９を押し開くとともに、ガーニッシュ下縁部２５の破断予定部３６を開口させて、窓ＷＦの後方側を遮蔽するように、展開することとなる。
【００４６】
このとき、前側・後側遮蔽材４３・５４は、それぞれ、下縁部４５・５６が下縁側部位ＤＷの略全長にわたって配置される構成とされて、前側遮蔽材４３の下縁部４５の長さ寸法Ｌ１と、下縁部５６の長さ寸法Ｌ２とが、略等しくされている。そして、折り畳み収納時において、前側遮蔽材４３の下縁側収納部位４１の長さ寸法Ｌ３と、後側遮蔽材５４の下縁側収納部位６２の長さ寸法Ｌ４とも、略等しくされていることから、前側・後側遮蔽材４３・５４の展開時に、前側遮蔽材４３における先端側頂点部位４９の移動ストロークと、後側遮蔽材５４における先端側頂点部位６０の移動ストロークとを、略等しくすることができる。そのため、１つのプリテンショナー６７で前側牽引材６９と後側牽引材７０とを牽引させても、前側遮蔽材４３と後側遮蔽材５４とを円滑に繰り出すことができ、かつ、展開した前側遮蔽材４３若しくは後側遮蔽材５４にたるみを生ずることなく、前側遮蔽材４３の斜辺部４４と後側遮蔽材５４の斜辺部５５とに、テンションを生じさせることができることから、前側遮蔽材４３と後側遮蔽材５４とで、乗員を的確に拘束することができる。
【００４７】
また、この時、制御装置９０が、ロールオーバセンサ８８からのロールオーバ検知信号を入力して、インフレーター８４を作動させ、インフレーター８４から膨張用ガスが吐出されることから、エアバッグ７７は、本体部７８内に膨張用ガスが流入されて膨張し、図示しないテープ材を破断させて、ルーフヘッドライニング８の扉部８ａを押し開いて、図８に示すように、遮蔽材４１の車内側で、窓ＷＦを遮蔽するように、下方へ展開膨張することとなる。
【００４８】
すなわち、第１実施形態の乗員拘束装置Ｓ１では、窓ＷＦの車内側で、遮蔽材４１が窓ＷＦを遮蔽し、遮蔽材４１の車内側Ｉにおける乗員との間に、エアバッグ７７が窓ＷＦを遮蔽するように配置されて、乗員を遮蔽材４１とエアバッグ７７とで的確に拘束することができる。
【００４９】
そして、第１実施形態の乗員拘束装置Ｓ１では、ロールオーバ検知時に、前側繰り出し手段６６Ｆ及び後側繰り出し手段６６Ｒが作動して、前側遮蔽材４３及び後側遮蔽材５４を、それぞれ、窓ＷＲ周縁の下縁側から実質的に上昇させるように、繰り出させる。そのため、乗員が窓ＷＦ周縁に寄りかかっていても、前側遮蔽材４３及び後側遮蔽材５４が、それぞれ、乗員を引き起こすように下方から干渉して、円滑に、繰り出されることとなる。
【００５０】
また、実施形態の乗員拘束装置Ｓ１では、前側遮蔽材４３が、窓ＷＦ周縁の前方側の縦縁側部位ＦＶＷから、窓ＷＦ周縁の下縁側に沿って、窓ＷＦの前部側を覆うように後方側に繰り出され、かつ、後側遮蔽材５４が、窓ＷＦ周縁の後方側の縦縁側部位ＲＶＷから、窓ＷＦ周縁の下縁側に沿って、窓ＷＦの後部側を覆うように前方側に繰り出されることから、前側遮蔽材４３で窓ＷＦの前部側を覆い、後側遮蔽材５４で窓ＷＦの後部側を覆うように遮蔽することとなって、窓ＷＦを、広範囲にわたって遮蔽することができる。
【００５１】
従って、実施形態の乗員拘束装置Ｓ１では、乗員が窓ＷＦ周縁に寄りかかっていても、ロールオーバ検知時、円滑に、窓ＷＦを遮蔽可能に遮蔽材４１（前側遮蔽材４３・後側遮蔽材５４）を繰り出すことができて、かつ、窓ＷＦを広い範囲で遮蔽することが可能である。
【００５２】
なお、第１実施形態の乗員拘束装置Ｓ１では、図９のＡに示すように、乗員Ｍの頭部Ｈが窓ＷＦに接近している状態で、例えば、エアバッグ７７が展開膨張すれば、エアバッグ７７が乗員頭部Ｈの車内側Ｉに配置されてしまう場合が生ずる。しかし、エアバッグ７７は、上端７８ａ側を窓ＷＦ周縁の上縁側部位ＵＷのインナパネル２に固定させて、下端７８ｂ側を窓ＷＦと略直交する方向へ揺動可能な自由端としている。また、乗員Ｍも、車両の展開途中では、窓ＷＦから離れたり接近したりする。そのため、図９のＢに示すように、乗員Ｍが窓ＷＦから離れた際、エアバッグ７７が、車外側Ｏの方向へ揺動して、乗員Ｍと遮蔽材４１との間に容易に入り込む。そして、その後、図９のＣに示すように、エアバッグ７７が、乗員頭部Ｈと遮蔽材４１との間に挟まれれば、エアバッグ７７が、乗員頭部Ｈを的確に拘束することができる。
【００５３】
また、上記第１実施形態では、遮蔽材４１として、それぞれ、略三角板形状の前側遮蔽材４３と後側遮蔽材５４とを配置させているが、図１２・１３に示す第２実施形態の乗員拘束装置Ｓ２のごとく、遮蔽材９１における後側遮蔽材９３として、略四角板形状のものを使用してもよい。第２実施形態では、前側遮蔽材４３として、第１実施形態と同一の構成のものが用いられているため、同一の図符号を付して説明を省略する。
【００５４】
後側遮蔽材９３は、前述の前側遮蔽材４３と同様に、繰り出し完了時に、前側遮蔽材４３より車内側Ｉに配置される構成である。そして、後側遮蔽材９３は、繰り出し完了時の形状として、収納側の後縦縁側部位ＲＶＷにおける縦縁部９６の上下を頂点９８・１００とするとともに、窓ＷＦ周縁の下縁に沿って延びる先端部位１０１を頂点とし、窓ＷＦ周縁の上縁に沿って延びる先端部位９９を頂点として、上先側頂点部位９９と先端側頂点部位１０１とを結ぶ斜辺部９４を有し、かつ、上縦側頂点部位９８と上先側頂点部位９９とを結ぶ上縁部９７と、下縦側頂点部位１００と先端側頂点部位１０１とを結ぶ下縁部９５と、を有する略台形形状としている。なお、下縁部９５の長さ寸法Ｌ５は、前側遮蔽材４３における下縁部４５の長さ寸法Ｌ１から前側遮蔽材４３の折り畳み収納時における下縁側収納部位５１の長さ寸法Ｌ３を差し引いた寸法と、略等しくなるように設定されている。
【００５５】
また、後側遮蔽材９３は、窓ＷＦ周縁の後縦縁側部位ＲＶＷにおけるドアフレーム１２の後縦縁部１５とドアフレームガーニッシュ２１の後縦縁部２４との間に折り畳まれて収納されている。そして、後側遮蔽材９３における下縁部９５の長さ寸法Ｌ５は、繰り出し時における先端側頂点部位１０１の移動量より若干小さな設定とされて、後側遮蔽材９３の繰り出し完了時において、斜辺部９４の部位に、テンションを生じさせ易いように設定されている。
【００５６】
さらに、後側遮蔽材９３は、上縦側頂点部位９８と下縦側頂点部位１００とを、前述の後側遮蔽材５４と同様に、係止ピン３３を利用して、後縦縁側部位ＲＶＷにおけるドアフレーム１２の後縦縁部１５に固定し、斜辺部９４の下端側となる先端側頂点部位１０１を後側繰り出し手段１０３における後側牽引材７０の先端７０ａに連結させている。また、斜辺部９４の上端側となる上先側頂点部位９９には、ガイドレール１０５に摺動して案内されるローラ１０６が取り付けられている。
【００５７】
第２実施形態の後側遮蔽材９３を繰り出すための後側繰り出し手段１０３は、第１実施形態の後側繰り出し手段６６Ｒと同様の構成である後側牽引材７０及びガイドローラ７３・７４と、上先側先端部位９９に取り付けられるローラ１０６と、ドアフレーム１２の上縁部１３に取り付けられて、ローラ１０６を摺動させて案内するガイドレール１０５と、から構成されている。ガイドレール１０５は、ローラ１０６を、後側遮蔽材９３の折り畳み収納時の上先側頂点部位９９の位置から、繰り出し完了時の上先側頂点部位９９の位置まで、案内可能に、ドアフレーム上縁部１３に配設されている。
【００５８】
また、後側遮蔽材９３の収納時における折り畳みは、図１３に示すように、平らに展開した状態から、縦縁部９６と略平行な略鉛直方向に沿った折目をつけて、斜辺部９４における下端側の先端側頂点部位１０１を下縦側頂点部位１００に接近させ、かつ、上先側頂点部位９９を上縦側頂点部位９８に接近させるような、蛇腹折りとしている。なお、折り畳んだ後側遮蔽材９３は、折り崩れ防止用の破断可能なテープ材６４を巻き付けておくとともに、上先側頂点部位９９にローラ１０６を取り付けておく。なお、前側遮蔽材４３は、第１実施形態において図１０に示したように折り畳まれることとなる。
【００５９】
そして、予め、ドアフレーム１２の車内側の面に、前側牽引材６９及び後側牽引材７０を連結させたプリテンショナー６７、ガイドローラ７１・７２・７３・７４、及び、ガイドレール１０５を取り付けておき、折り畳んだ前側遮蔽材４３と後側遮蔽材９３とをガーニッシュ２１に組み付けて、前側遮蔽材４３の先端側頂点部位４９を前側牽引材６９の先端６９ａに連結させ、後側遮蔽材９３の先端側頂点部位１０１を後側牽引材７０の先端７０ａに連結させる。そして、ローラ１０６をガイドレール１０５に組み付け、ドアトリム３９をドアフレーム下縁部１６の下部に取り付ければ、ドアＦＤの組み立てを完了させることができ、ドアＦＤをボディ１に取り付ければ、前側・後側遮蔽材４３・９３、前側・後側繰り出し手段６６Ｆ・１０３、及び、プリテンショナー６７を、車両に搭載することができる。
【００６０】
この乗員拘束装置Ｓ２では、後側遮蔽材９３を略四角板形状に形成していることから、前述の後側遮蔽材５４より広い面積で窓ＷＦを遮蔽できることとなり、一層、広範囲にわたって窓ＷＦを遮蔽することができる。また、第２実施形態でも、後側遮蔽材９３の下縁部９５の長さ寸法Ｌ５が、前側遮蔽材４３における下縁部４５の長さ寸法Ｌ１から前側遮蔽材４３の折り畳み収納時における下縁側収納部位５１の長さ寸法Ｌ３を差し引いた寸法と、略等しくなるように設定されていることから、前側・後側遮蔽材４３・９３の展開時に、前側遮蔽材４３における先端側頂点部位４９の移動ストロークと、後側遮蔽材９３における先端側頂点部位１０１の移動ストロークとを、略等しくすることができる。そのため、１つの駆動源６８で前側牽引材６９と後側牽引材７０とを牽引させても、前側遮蔽材４３と後側遮蔽材９３とを円滑に繰り出すことができ、かつ、展開した前側遮蔽材４３若しくは後側遮蔽材９３にたるみを生ずることなく、展開した前側遮蔽材４３の斜辺部４４と後側遮蔽材９３の斜辺部９４とに、テンションを生じさせることができることから、前側遮蔽材４３と後側遮蔽材９３とで、乗員を的確に拘束することができる。
【００６１】
なお、実施形態の乗員拘束装置Ｓ１・Ｓ２では、前側繰り出し手段６６Ｆ及び後側繰り出し手段６６Ｒ・１０３を窓ＷＦ周縁の下縁側部位ＤＷ内に配設させている。窓ＷＦ周縁の下縁側部位ＤＷには、窓ＷＦ周縁における上縁側部位ＵＷや前・後縦縁側部位ＦＶＷ・ＲＶＷに比べてスペースに余裕があることから、前側繰り出し手段６６Ｆ及び後側繰り出し手段６６Ｒ・１０３を容易に配設させることができる。
【００６２】
また、実施形態の乗員拘束装置Ｓ１・Ｓ２では、前側繰り出し手段６６Ｆと後側繰り出し手段６６Ｒ（１０３）とが、駆動源としてのプリテンショナー６７を共用させている構成であることから、前側繰り出し手段６６Ｆ及び後側繰り出し手段６６Ｒ（１０３）をコンパクトにすることができて、窓ＷＦ周縁の下縁側部位ＤＷへの搭載が一層容易となる。さらに、実施形態の乗員拘束装置Ｓ１・Ｓ２では、前側繰り出し手段６６Ｆと後側繰り出し手段６６Ｒ（１０３）とが、駆動源としてのプリテンショナー６７を共用させている構成であることから、前側繰り出し手段６６Ｆと後側繰り出し手段６６Ｒ（１０３）とが略同時に作動することとなって、前側遮蔽材４３と後側遮蔽材５４（９３）とが略同時に繰り出されることとなる。その結果、ロールオーバ検知時に、窓ＷＦを迅速に大きく遮蔽することができる。
【００６３】
なお、実施形態の乗員拘束装置Ｓ１・Ｓ２では、遮蔽材４１・９１の繰り出し完了時に、乗員に近い側の後側遮蔽材５４・９３が、前側遮蔽材４３の車内側Ｉに配置される構成としていることから、乗員が窓ＷＦ周縁に寄りかかっている場合に、主に、乗員の後方側から干渉して乗員を引き起こすことができて、乗員の顔面等にダメージを与える虞れがない。勿論、この点を考慮しなければ、前側遮蔽材４３が後側遮蔽材５４・９３の車内側Ｉに配置される構成としてもよい。
【００６４】
さらに、実施形態の乗員拘束装置Ｓ１・Ｓ２では、プリテンショナー６７として、インフレーターのガス圧を利用して前側・後側牽引材６９・７０を牽引するシリンダタイプの本体６８を備えるものを使用しているが、例えば、電動モータ・ばねの復元力・電磁ソレノイド等を利用して牽引材を牽引する構成の本体を備えたプリテンショナーを使用してもよい。
【００６５】
さらにまた、実施形態の乗員拘束装置Ｓ１・Ｓ２では、フロントドアＦＤの窓ＷＦの周縁に、遮蔽材４１・９１を配置させた場合を示したが、勿論、フロントドアＦＤに限らず、リヤドアＲＤの窓ＷＲの周縁に、遮蔽材を配置させる構成としてもよい。さらには、ドアに限らず、三列シートの車両等のように、ドアでないボディに設けられた窓の周縁に、遮蔽材を配置させる構成としてもよい。
【００６６】
また、遮蔽材としては、窓の車内側を遮蔽するばかりでなく、窓の車外側を遮蔽するように、構成してもよい。
【００６７】
なお、実施形態の乗員拘束装置Ｓ１・Ｓ２では、制御装置９０が、車両の転倒が予測されるロールオーバ検知信号をロールオーバセンサ８８から入力すると、プリテンショナー６７が作動されて遮蔽材４１・９１が繰り出され、インフレーター８４が作動されてエアバッグ７７が展開膨張する構成とされているが、勿論、制御装置９０が、図示しない側突センサからの側突検知信号を入力させた際にも、プリテンショナー６７及びインフレーター８４を作動させて、遮蔽材４１・９１を繰り出させ、エアバッグ７７を展開膨張させる構成としてもよい。
【図面の簡単な説明】
【図１】本発明に係る第１実施形態の乗員拘束装置の車内側から見た正面図である。
【図２】第１実施形態のドアの車内側から見た正面図である。
【図３】図１のIII−III部位の概略断面図である。
【図４】図１のIV−IV部位の概略断面図である。
【図５】図１のＶ−Ｖ部位の概略断面図である。
【図６】図１のVI−VI部位の概略断面図である。
【図７】図１のVII−VII部位の概略断面図である。
【図８】第１実施形態の乗員拘束装置の作動時を示す車内側から見た正面図である。
【図９】第１実施形態の乗員拘束装置における車両転倒時のエアバッグの挙動を説明する図である。
【図１０】第１実施形態における前側遮蔽材の折り畳み工程を説明する図である。
【図１１】第１実施形態における後側遮蔽材の折り畳み工程を説明する図である。
【図１２】第２実施形態の乗員拘束装置を示す図である。
【図１３】第２実施形態における後側遮蔽材の折り畳み工程を説明する図である。
【符号の説明】
４１・９１…遮蔽材、
４３…前側遮蔽材、
５４・９３…後側遮蔽材、
６６Ｆ…前側繰り出し手段、
６６Ｒ・１０３…後側繰り出し手段、
６７…プリテンショナー（駆動源）、
６８…本体、
６９…前側牽引材、
７０…後側牽引材、
７１・７２・７３・７４…ガイドローラ、
ＷＦ…窓、
ＤＷ（窓周縁の）下縁側部位、
ＦＶＷ（窓周縁の）前縦縁側部位、
ＲＶＷ（窓周縁の）後縦縁側部位、
Ｓ１・Ｓ２…乗員拘束装置。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an occupant restraint device that shields a window in a vehicle and restrains the occupant on the inside of the vehicle when the vehicle rolls over or rolls over.
[0002]
[Prior art and its problems]
In the conventional occupant restraint device, as known in Japanese Patent Laid-Open No. 5-310098, etc., when a vehicle overturn is predicted, the rollover sensor detects the rollover of the vehicle and A belt-shaped or sheet-shaped shielding material housed in the periphery is fed out from the window periphery so as to shield the window.
[0003]
However, the conventional shielding material is drawn downward from the upper edge side of the window periphery.
[0004]
For this reason, when the occupant is leaning on the periphery of the window, there is a case where it is difficult for the shielding material to enter between the occupant and the window.
[0005]
In this type of occupant restraint device, it is desirable to shield the window in a wide range as much as possible from the viewpoint of occupant protection.
[0006]
The present invention solves the above-mentioned problem, and even when an occupant leans against the window periphery, when a rollover is detected, the shielding material can be smoothly drawn out so as to be able to shield the window, and the window An object of the present invention is to provide an occupant restraint device capable of shielding the vehicle in a wide range.
[0007]
[Means for Solving the Problems]
An occupant restraint device according to the present invention is an occupant restraint device having a configuration in which a shielding material is extended from the periphery of a window so that the window can be shielded when a rollover of the vehicle is detected.
Each of the shielding materials includes a front shielding material that covers the front side of the window at the time of shielding, and a rear shielding material that covers the rear side of the window at the time of shielding,
The front shielding member is housed in at least a vertical edge side portion extending substantially in the vertical direction on the front side of the window periphery so as to substantially rise from the lower edge side of the window periphery when extended.
The rear shielding material is housed in at least a vertical edge side portion extending substantially in the vertical direction on the rear side of the window periphery so as to substantially rise from the lower edge side of the window periphery when extended,
In the lower edge part of the window rim,
Front side feeding means that is connected to the front shielding material, and that, when activated, allows a portion to be connected to the front shielding material to be fed rearward along the lower edge side of the window periphery,
Back side feeding means that is connected to the rear side shielding material and can be fed forward along the lower edge side of the window peripheral edge when connected to the rear side shielding material,
Is arranged,
The front-side feeding means and the rear-side feeding means are configured to share a drive source.
[0008]
【The invention's effect】
In the occupant restraint device of the present invention, when the rollover is detected, the front-side feeding means and the rear-side feeding means are operated so that the front shielding material and the rear shielding material are substantially raised from the lower edge side of the window periphery. Let me go out. Therefore, even if the occupant leans against the window periphery, the front shielding material and the rear shielding material interfere with each other from below so as to cause the occupant and are smoothly drawn out.
[0009]
In the occupant restraint device of the present invention, the front shielding member is drawn out from the front side of the window periphery to the rear side so as to cover the front side of the window along the lower edge side of the window periphery, Since the rear shielding material is fed forward from the vertical edge side portion on the rear side of the window periphery along the lower edge side of the window periphery so as to cover the rear side of the window, the front portion of the window is covered with the front shielding material. The side is covered and shielded so as to cover the rear side of the window with the rear shielding material, so that the window can be shielded over a wide range.
[0010]
Therefore, in the occupant restraint device of the present invention, even when the occupant is leaning against the window periphery, when the rollover is detected, the shielding material can be extended smoothly so that the window can be shielded, and the window can be spread over a wide range. It is possible to shield.
[0011]
Moreover, in the passenger | crew restraint apparatus of this invention, the front side feeding means and the rear side feeding means are arrange | positioned in the lower edge side site | part of the window periphery. Since the lower edge side portion of the window periphery has more space than the upper edge side portion and the vertical edge side portion of the window periphery, the front drawing means and the rear drawing means can be easily arranged.
[0012]
Furthermore, in the occupant restraint device of the present invention, since the front side feeding means and the rear side feeding means share the drive source, the front side feeding means and the rear side feeding means can be made compact. The mounting on the lower edge portion of the window periphery is further facilitated. Further, in the occupant restraint device of the present invention, since the front side feeding means and the rear side feeding means share the drive source, the front side feeding means and the rear side feeding means operate substantially simultaneously. Thus, the front shielding material and the rear shielding material are drawn out substantially simultaneously. As a result, when the rollover is detected, the window can be quickly shielded in a wide range.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0014]
As shown in FIGS. 1, 2, and 8, the occupant restraint device S1 according to the first embodiment of the present invention is extended from the periphery of the window WF in the vehicle interior I, and can shield the vehicle interior I in the window WF. It is configured to include a material 41 and an airbag 77 that is inflated from the periphery of the window WF and can be disposed between the shielding material 41 and the occupant.
[0015]
The shielding material 41 includes a front shielding material 43 that covers the front side of the window WF during shielding, and a rear shielding material 54 that covers the rear side of the window WF during shielding. The front shielding member 43 is fed by the front feeding unit 66F, and the rear shielding member 54 is fed by the rear feeding unit 66R. The front feeding unit 66F and the rear feeding unit 66R serve as drive sources. Actuated by a pretensioner 67. Further, the airbag 77 is deployed and inflated by the inflation gas from the inflator 84. The operation of the pretensioner 67 and the inflator 84 is controlled by the control device 90, and the control device 90 receives the rollover detection signal from the rollover sensor 88 so as to predict the vehicle overturning. And the inflator 84 are operated. Note that the control device 90 and the rollover sensor 88 are disposed at predetermined positions of the vehicle.
[0016]
As shown in FIGS. 2 to 4, the front door FD on which the shielding member 41 is disposed includes a door frame garnish disposed on the periphery of the window WF on the door frame 12 on the vehicle outer side O and on the vehicle inner side I of the door frame 12. 21 and a door trim 39 disposed below the garnish 21 in the vehicle interior I of the door frame 12.
[0017]
The door frame 12 is made of sheet metal, and the upper edge portion 13 is disposed on the periphery of the window WF, and the front and rear longitudinal edge portions 14 and 15 are disposed substantially vertically on both front and rear ends. And a lower edge portion 16 on the lower edge side. Attachment holes 14a and 14b for attaching the front shielding material 43 are formed near the upper and lower ends of the front vertical edge portion 14, and the rear shielding material 54 is attached near the upper and lower ends of the rear vertical edge portion 15. Mounting holes 15a and 15b are formed (see FIGS. 6 and 7).
[0018]
The door frame garnish 21 is made of a synthetic resin, and the upper edge portion 22 is disposed on the periphery of the window WF, and the front and rear longitudinal edge portions 23 are disposed substantially vertically on both front and rear ends. -It is comprised including 24 and the lower edge part 25 of the lower edge side. The upper edge portion 22, the front vertical edge portion 23, and the rear vertical edge portion 24 can be fitted to the vehicle inner side of the upper edge portion 13, the front vertical edge portion 14, and the rear vertical edge portion 15 at the periphery of the window WF. The cross-section is substantially U-shaped (see FIGS. 3 to 5).
[0019]
A metal locking pin 33 that is inserted and locked into the mounting holes 14a and 14b of the door frame 12 is embedded in the front vertical edge 23 of the garnish 21 that covers the stored front shielding member 43 (see FIG. 6). ). Further, as shown in FIG. 3, the front vertical edge portion 23 is provided with a door portion 27 that is pushed and opened by the front shielding member 43 when the stored front shielding member 43 is extended. The door part 27 is provided with a thin hinge part 28 at the inner end of the vehicle, and is configured to be easily opened. And the vertical edge side storage part 50 mentioned later of the front side shielding material 43 folded and accommodated is covered with the door part 27 at the back side, and between the door part 27 and the front vertical edge part 14 of the door frame 12 is covered. It is stored.
[0020]
The rear vertical edge 24 of the garnish 21 covering the stored rear shielding material 54 is inserted into and locked into the mounting holes 15a and 15b of the door frame 12 in the same manner as the front vertical edge 23. 33 is embedded (see FIG. 7). As shown in FIG. 4, the rear vertical edge portion 24 is also provided with a door portion 29 that is pushed and opened by the rear shielding material 54 when the stored rear shielding material 54 is extended. Similarly to the door portion 27, the door portion 29 is provided with a thin hinge portion 30 at the vehicle inner end portion so as to be easily opened. And the vertical edge side storage part 61 mentioned later of the rear side shielding material 54 folded and stored is covered with the door part 29 at the front side, and between the door part 29 and the rear vertical edge part 15 of the door frame. It is stored.
[0021]
Further, as shown in FIG. 5, a cover portion 35 is disposed on the upper edge side of the lower edge portion 25 of the garnish 21 by arranging a thin-walled planned break portion 36 extending in the front-rear direction of the vehicle. The cover part 35 covers the upper side of the lower edge side storage part 51 and the lower edge side storage part 62 of the front side shielding member 43 that are folded and stored, respectively, and will be described later in the front side feeding means 66F. It covers the upper part of the trajectory of the front 69a of the front pulling material 69 and the trajectory of the rear feeding means 66R of the rear 70c of the rear pulling material 70. When the front and rear traction members 69 and 70 are moved (see FIGS. 1, 2, and 8), the planned break portion 36 is broken by the front and rear shielding members 43 and 54, and the opening 37 is formed. In the opening 37, the lower edge portions 45 and 56 of the developed front and rear shielding members 43 and 54 are disposed.
[0022]
In the embodiment, the garnish 21 is a two-color molded product having compatibility. That is, the door portions 27, 29, the hinge portions 28, 30, and the cover portion 35 are formed of a polyolefin-based thermoplastic elastomer or the like so that they can be easily opened when the front and rear shielding materials 43 and 54 (shielding material 41) are unfolded. The other portions are made of a synthetic resin such as hard polypropylene having compatibility with the material such as the door portion 27 so as to ensure the strength.
[0023]
Further, as shown in FIGS. 3 and 4, the body 1 side of the peripheral edge of the door FD is configured by disposing an inner panel 2 and an outer panel 3, and the outer peripheral edge of the door FD is provided on the body 1 side. A weather strip 5 is provided for sealing. When the door FD is closed, the weather strip 5 is pressed against the top portion 21a protruding to the vehicle inner side I of the garnish 21 and the lower front edge, lower edge, and rear edge of the door FD away from the garnish 21. It becomes. A top portion 21 a that protrudes toward the vehicle inner side I of the garnish 21 is disposed on the upper edge portion 22, the front vertical edge portion 23, and the rear vertical edge portion 24. 3 and 4 is a weather strip fixed to the outer edge side of the door frame 12, and this weather strip 18 is pressed against the outer panel 3 on the body 1 side when the door FD is closed. Will be. Furthermore, the member of the code | symbol 19 is a glass run.
[0024]
The shielding material 41 is in the form of a sheet formed of a cloth material made of flexible polyester yarn, polyamide yarn, or the like. As shown in FIGS. The front-side shielding material 43 that covers the front side of the vehicle and the rear-side shielding material 54 that covers the rear side of the vehicle interior I of the window WF at the time of shielding.
[0025]
The front side shielding member 43 has a top end portion 49 extending along the lower edge of the periphery of the window WF, with the top and bottom of the vertical edge portion 46 of the front vertical edge side portion FVW on the storage side being apexes 47 and 48 when the drawing is completed. Is a substantially triangular plate shape having a hypotenuse 44 connecting the upper apex portion 47 and the tip apex portion 49 with a lower edge 45 connecting the lower apex portion 48 and the tip apex portion 49. It is said. The upper and lower apex portions 47 and 48 are fixed to the upper and lower portions of the front vertical edge portion 14 of the door frame 12 in the front vertical edge side portion FVW, respectively, and the apex portion 49 on the front end side is in the front feeding means 66F. The front traction member 69 is connected to the tip 69a. Further, the front shielding member 43 is configured such that the lower edge portion 45 is disposed over substantially the entire length of the lower edge side portion DW when the feeding is completed.
[0026]
As shown in FIGS. 1 and 2, the front shielding member 43 is folded and stored in a substantially L shape so as to straddle the intersection corner C <b> 1 where the front vertical edge side portion FVW and the lower edge side portion DW intersect. . Specifically, the front shielding member 43 is folded and stored between the front vertical edge portion 14 of the door frame 12 and the front vertical edge portion 23 of the door frame garnish 21 at the front vertical edge side portion FVW on the periphery of the window WF. In addition, the door frame 12 is folded and stored between the lower edge portion 16 of the door frame 12 and the lower edge portion 25 of the door frame garnish 21 on the front side of the lower edge side portion DW of the periphery of the window WF.
[0027]
In the embodiment, as shown in FIG. 6, the upper and lower apex portions 47 and 48 are configured to include mounting holes 47 a and 48 a, respectively. Then, the locking pins 33 embedded in the garnish 21 arranged on the inner side of the door frame 12 are inserted into the mounting holes 47a and 48a, and the mounting provided on the upper and lower sides of the front vertical edge portion 14 of the door frame 12 The upper and lower apex portions 47 and 48 are fixed to the door frame 12 by being engaged with the holes 14a and 14b. The distal end side apex portion 49 is connected to the distal end 69 a of the front traction material 69.
[0028]
The rear shielding member 54 housed on the side closer to the passenger is configured to be disposed on the vehicle inner side I with respect to the front shielding member 43 when the feeding is completed. The rear shielding member 54 has a shape at the time when the feeding is completed, with the vertical edges 57 at the rear vertical edge side portion RVW on the storage side being apexes 58 and 59 and extending along the lower edge of the window WF periphery. It has a hypotenuse 55 that connects the upper apex 58 and the apex apex 60 with the apex 60 as the apex, and a lower edge 56 that connects the lower apex 59 and the apex apex 60. Triangular plate shape. In the rear shielding member 54, the upper and lower apex portions 58 and 59 are fixed to the upper and lower portions of the rear vertical edge portion 15 of the door frame 12 in the rear vertical edge portion RVW, respectively, and the apex portion 60 on the front end side. Is connected to the tip 70a of the rear traction material 70 in the rear feeding means 66R. Further, when the rear side shielding material 54 is completed, the lower edge portion 56 is disposed over substantially the entire length of the lower edge side portion DW, and the length dimension L2 is set to the length dimension of the lower edge portion 45 of the front side shielding material 43. It is substantially equal to L1. In the embodiment, the length dimension L1 of the lower edge portion 45 in the front shielding member 43 and the length dimension L2 of the lower edge portion 56 in the rear shielding member 54 are based on the length dimension of the lower edge portion DW. It is set to be slightly smaller, and is set so that tension is easily generated at the portions of the oblique sides 44 and 55 when the front and rear shielding members 43 and 54 are completely delivered.
[0029]
As shown in FIGS. 1 and 2, the rear shielding member 54 is folded and stored in an inverted L shape so as to straddle the intersection corner C2 where the rear vertical edge portion RVW and the lower edge portion DW intersect. Yes. Specifically, the rear shielding member 54 is folded and stored between the rear vertical edge 15 of the door frame 12 and the rear vertical edge 24 of the door frame garnish 21 in the rear vertical edge side portion RVW of the window WF. In addition, the door frame 12 is folded and stored between the lower edge portion 16 of the door frame 12 and the lower edge portion 25 of the door frame garnish 21 on the rear side of the lower edge portion DW of the periphery of the window WF.
[0030]
In the embodiment, the upper and lower apex portions 58 and 59 are provided with mounting holes 58a and 59a, respectively, as shown in FIG. Then, the locking pins 33 embedded in the garnish 21 arranged on the inner side of the door frame 12 are inserted into the mounting holes 58a and 59a, and the mounting provided on the upper and lower sides of the rear vertical edge 15 of the door frame 12. The upper and lower apex portions 58 and 59 are fixed to the door frame 12 by being locked and attached to the holes 15a and 15b. Further, the distal end side apex portion 60 is connected to the distal end 70 a of the rear traction material 70.
[0031]
Further, as shown in FIGS. 10 and 11, the front and rear shielding members 43 and 54 are arranged such that the length L 3 of the lower edge side storage portion 51 when the front shielding member 43 is stored and the rear shielding member 54 are stored. Are folded and stored so that the length dimension L4 of the lower edge side storage portion 62 is substantially equal. Specifically, as shown in FIG. 10, the front shielding member 43 has a length dimension of the vertical edge 46 that is fixed to the periphery of the window WF from the flatly developed state, that is, the upper vertex. In order not to change the distance between the portion 47 and the lower apex portion 48, the lower edge side is made wider than the upper side, and the oblique side 44 side is made closer to the vertical edge portion 46 side. It is out. In the case of the embodiment, fan folding is performed such that the folding width on the lower edge portion 45 side is wider than the upper vertex portion 47 side with the upper vertex portion 47 in a flatly developed state as the center of the fan. As shown in FIG. 11, the rear shielding member 54 has a crease along the substantially vertical direction substantially parallel to the vertical edge portion 57 around the front end side apex portion 60 from a state where the rear shielding member 54 is flatly developed. After the bellows fold so that the front end side apex part 60 approaches the lower edge part 56 side (lower apex part 59 side), the length dimension of the vertical edge part 57 to be fixed to the periphery of the window WF, that is, In order not to change the distance between the upper vertex part 58 and the lower vertex part 59, the lower edge side folding width is made larger than the upper side, and the hypotenuse part 55 side is brought closer to the vertical edge part 57 side. The upper vertex 58 is folded and folded with the fan as the center.
[0032]
The feeding means 66 </ b> F that feeds the front shielding material 43 rearward is connected to the front shielding material 43 and has a flexible front towing material 69 that pulls the front shielding material 43, and the pulling direction of the front pulling material 43. And guide rollers 71 and 72 for restricting the movement. The feeding means 66R for feeding the rear shielding material 54 forward is connected to the rear shielding material 54 and has a flexible rear towing material 70 for towing the rear shielding material 54, and the rear shielding. It comprises guide rollers 73 and 74 that regulate the pulling direction of the material 54. The front traction material 69 and the rear traction material 70 share a pretensioner 67 as a drive source, and are connected to the main body 68 of the pretensioner 67, respectively, so that the front shielding material 43 and the rear shielding material are connected. 54 can be pulled.
[0033]
The main body 68 is a cylinder type that uses the gas pressure of the inflator to pull the front and rear traction materials 69 and 70. The front traction member 69 has a distal end 69a coupled to the distal end side apex portion 49 of the front shielding member 43, a guide roller 71 disposed below the intersection corner C2 of the lower edge portion DW at the periphery of the window WF, and a main body The guide roller 72 disposed above 68 is regulated in the pulling direction, and the front end side apex portion 49 of the front shielding member 43 can be pulled rearward along the lower edge side of the periphery of the window WF. Has been. The rear traction member 70 has a distal end 70 a connected to the distal end apex portion 60 of the rear shielding member 54, and a guide roller 73 disposed below the intersection corner C 1 of the lower edge portion DW, and an upper portion of the main body 68. The pulling direction is regulated by the guide roller 74 disposed in front of the guide roller 72 at the front, and the front end side apex portion 60 of the rear shielding member 54 is pulled forward along the lower edge side of the peripheral edge of the window WF. Possible configuration. The pretensioner 67 and the guide rails 71, 72, 73, and 74 are fixedly attached to the vehicle inner side of the lower edge portion 16 of the door frame 12 in the lower edge side portion DW of the window WF.
[0034]
As shown in FIGS. 1, 5, and 8, the airbag 77 has a substantially rectangular plate shape in the case of the embodiment as a bag shape that inflates by inflating gas from the inflator 84. The airbag 77 includes a main body portion 78 that inflates by inflating the inflation gas, and a cylindrical gas inflow portion 79 that causes the inflation gas to flow into the main body portion 78. The gas inflow portion 79 is disposed on the upper rear side of the main body portion 78 and is connected to the inflator 84. On the upper end side of the airbag 77, a plurality of attachment portions 80 fixed to the inner panel 2 on the body 1 side in the roof side rail portion RR are disposed. As shown in FIG. 5, a mounting bracket 81 is fixed to each mounting portion 80, and each mounting portion 80 is fixed to the inner panel 2 with a bolt 82 together with the mounting bracket 81.
[0035]
And the airbag 77 only fixes the upper end 78a side of the main-body part 78 at the time of expansion | deployment using each attachment part 80 to the inner panel 2, Comprising: The main-body-part lower end 78b side at the time of expansion | deployment is The free end is disposed so as to be swingable in the direction I on the vehicle inner side and the direction O on the vehicle outer side in a direction substantially orthogonal to the window WF.
[0036]
Further, the airbag 77 is folded in a bellows shape from the lower end 78b side to the upper end 78a side, and is covered with the roof head lining 8 on the inner side of the roof side rail portion RR corresponding to the upper edge side portion UW at the periphery of the window WF. Are stored. The roof head lining 8 is made of synthetic resin, and a door 8a that can be opened to the inside of the vehicle is disposed at the lower edge thereof. When the airbag 77 is deployed and inflated, the airbag 77 pushes open the door portion 8a, protrudes downward, and is disposed between the occupant and the shielding member 41.
[0037]
When deployed and inflated, the airbag 77 covers the rear side of the window WF, the upper side of the center pillar garnish 9 on the inner side of the center pillar CP, and the front side of the window WR of the rear door RD. Become.
[0038]
Furthermore, in the case of the embodiment, the airbag 77 is disposed so that the substantially entire length of the lower end 78b excluding the pillar portion CP at the completion of deployment and inflation can be overlapped in the horizontal direction with the rear shielding member 54 at the completion of the feeding. (See FIG. 8).
[0039]
The inflator 84 is attached as a cylinder type to the inner panel 2 of the roof side rail portion RR using the mounting bolts 86 while being held by the mounting bracket 85.
[0040]
Next, mounting of the occupant restraint device S1 of the first embodiment on a vehicle will be described. First, the shielding material 41 (front and rear shielding materials 43 and 54) is folded. Specifically, as shown in FIGS. 10A and B, the front shielding member 43 in a flatly deployed state has the upper apex portion 47 as the center of the fan, and is closer to the lower edge 45 than the upper apex portion 47 side. The folding width is widened, the oblique side portion 44 is fan-folded so as to approach the vertical edge portion 46, and then, as shown in FIG. 10C, a plurality of breakable tape members 64 for preventing collapse, The folded front shielding member 43 is wrapped. In this folded state, the folded part from the upper vertex part 47 to the lower vertex part 48 where the vertical edge 46 is located is the front vertical edge part 14 of the door frame 12 and the front vertical edge part 23 of the door frame garnish 21. A vertical-edge-side storage portion 50 that is stored between the lower-edge portion 48 of the door frame 12 and the door-frame garnish 21 It becomes the lower edge side accommodation part 51 accommodated between the lower edge portions 25. Note that the locking pin 33 is inserted into the mounting holes 47a and 48a of the upper and lower apex portions 47 and 48, respectively.
[0041]
In the state where the rear shielding member 54 is flatly spread, first, as shown in FIG. 11A, a crease along a substantially vertical direction substantially parallel to the vertical edge portion 57 is formed around the distal end side apex portion 60. Turn it on and fold the bellows. Next, as shown in FIGS. 11B and 11C, the upper apex portion 58 is the center of the fan, the folding width on the lower edge portion 56 side is wider than the upper apex portion 58 side, and the oblique side portion 55 is set to the vertical edge portion 57. As shown in FIG. 11D, the folded rear shielding material 54 is wrapped with a plurality of breakable tape members 64 for preventing collapse. In this folded state, the folding part from the upper vertex part 58 to the lower vertex part 59 where the vertical edge 47 is located is the rear vertical edge part 15 of the door frame 12 and the rear vertical edge part 24 of the door frame garnish 21. The vertical edge side storage part 61 stored between the lower edge part 59 where the lower edge part 56 is located and the folding part from the tip side vertex part 60 is the lower edge part 16 of the door frame 12 and the door frame garnish 21. It becomes the lower edge side accommodation part 61 accommodated between the lower edge portions 25. At this time, the rear storage member 54 is folded so that the length dimension L4 of the lower edge storage part 61 in the rear storage member 54 is substantially equal to the length dimension L3 of the lower edge storage part 51 in the front storage member 43. . Specifically, the length dimension L4 is adjusted by adjusting the bellows fold amount in the vicinity of the distal apex portion 60. Note that the locking pin 33 is inserted into the mounting holes 58a and 59a of the upper and lower apex portions 58 and 59. Further, a pretensioner 67 in which a front traction material 69 and a rear traction material 70 are connected and guide rollers 71, 72, 73, and 74 are attached to the inner surface of the door frame 12.
[0042]
The upper and lower apex portions 47 and 48 of the front shielding member 43 are attached to the front vertical edge portion 14 of the door frame 12 together with the garnish front longitudinal edge portion 23, and at the same time the upper and lower vertexes of the rear shielding member 54. The parts 58 and 59 are attached to the rear vertical edge 15 of the door frame 12 together with the rear edge 24 of the garnish. Next, the front end side apex portion 49 of the front shielding member 43 is connected to the front end 69 a of the front side pulling member 69, and the front end side apex portion 60 of the rear side shielding member 54 is connected to the front end 70 a of the rear side pulling member 70. Then, while fitting the upper edge portion 22 and the lower edge portion 25 of the garnish 21 to the upper edge portion 13 and the lower edge portion 16 of the door frame 12, the garnish 21 is appropriately used using a bolt or the like at a location not shown. Is fixed to the door frame 12 of the door FD, the door trim 39 is attached to the lower part of the lower edge portion 16 of the door frame, and then the door FD is attached to the body 1, the front and rear shielding materials 43 and 54, the front and rear sides The feeding means 66F and 66R and the pretensioner 67 can be mounted on the vehicle.
[0043]
As for the mounting of the airbag 77 on the vehicle, the airbag 77 is folded to the upper end 78a side, and the airbag 77 is wrapped with a tape material (not shown) that can be broken so as not to collapse. Next, the attachment bracket 81 is attached to each attachment portion 80 of the airbag 77, the gas inflow portion 79 is connected to the inflator 84, and the attachment bracket 85 is attached to the inflator 84 to form an airbag assembly. deep. After that, if the mounting brackets 81 and 85 are fastened to the inner panel 2 with the bolts 82 and 86 and the roof head lining 8 is attached to the inner panel 2, the airbag 77 and the inflator 84 can be mounted on the vehicle. Then, by attaching the front / rear shielding members 43 and 54, the feeding means 66F and 66R, the pretensioner 67, the airbag 77, and the inflator 84 to the vehicle, the occupant restraint device S1 is mounted on the vehicle. Become.
[0044]
The control device 90 and the rollover sensor 88 are separately attached at predetermined positions of the vehicle, and when the occupant restraint device S1 is mounted on the vehicle, a lead wire (not shown) extending from the pretensioner 67 and the inflator 84 is controlled by the control device. It will be connected to 90.
[0045]
Then, after the occupant restraint device S1 is mounted on the vehicle, the control device 90 activates the pretensioner 67 as a drive source when the rollover detection signal that predicts the vehicle to fall is input from the rollover sensor 88. Then, since the main body 68 pulls the front pulling material 69 so as to move the front end 69a of the front pulling material 69 backward, the front shielding member 43 is shown by the two-dot chain line in FIGS. 2 to 5 or the solid line in FIG. From the folded state, the tip end apex portion 49 moves rearward to push open the door portion 27 of the garnish front vertical edge portion 23 and open the planned fracture portion 36 of the garnish lower edge portion 25 as shown in FIG. Then, it will unfold so as to shield the front side of the window WF. At the same time, since the main body 68 pulls the rear pulling material 70 so as to move the tip 70a of the rear pulling material 70 forward, the rear shielding material 54 is shown by the two-dot chain line in FIGS. As shown by the solid line 8, the tip-side apex portion 60 moves forward from the folded state to push open the door 29 of the rear garnish vertical edge 24 and to break the garnish lower edge 25. 36 is opened so that the rear side of the window WF is shielded.
[0046]
At this time, the front and rear shielding members 43 and 54 are configured such that the lower edge portions 45 and 56 are disposed over substantially the entire length of the lower edge side portion DW, respectively, and the length of the lower edge portion 45 of the front shielding member 43 is long. The length dimension L1 and the length dimension L2 of the lower edge portion 56 are substantially equal. At the time of folding storage, the length dimension L3 of the lower edge side storage part 41 of the front shielding material 43 and the length dimension L4 of the lower edge side storage part 62 of the rear shielding material 54 are substantially equal, When the front and rear shielding materials 43 and 54 are deployed, the movement stroke of the front end side apex portion 49 of the front side shielding material 43 and the movement stroke of the front end side apex portion 60 of the rear side shielding material 54 can be made substantially equal. it can. Therefore, even if the front traction material 69 and the rear traction material 70 are pulled by one pretensioner 67, the front shielding material 43 and the rear shielding material 54 can be smoothly fed out, and the deployed front shielding Since tension can be generated in the oblique side portion 44 of the front side shielding material 43 and the oblique side portion 55 of the rear side shielding material 54 without causing slack in the material 43 or the rear side shielding material 54, The occupant can be restrained accurately with the rear shielding member 54.
[0047]
At this time, the control device 90 inputs the rollover detection signal from the rollover sensor 88 to operate the inflator 84, and the inflation gas is discharged from the inflator 84. The expansion gas flows into the portion 78 and expands, breaking a tape material (not shown), pushing the door portion 8a of the roof head lining 8 open, and as shown in FIG. Then, it expands and expands downward so as to shield the window WF.
[0048]
That is, in the occupant restraint device S1 of the first embodiment, the shielding member 41 shields the window WF inside the window WF, and the airbag 77 forms the window WF between the shielding member 41 and the passenger on the vehicle inside I. The occupant can be accurately restrained by the shielding material 41 and the airbag 77.
[0049]
In the occupant restraint device S1 according to the first embodiment, when the rollover is detected, the front feeding means 66F and the rear feeding means 66R are operated, and the front shielding material 43 and the rear shielding material 54 are respectively connected to the periphery of the window WR. It is let out so that it may raise substantially from the lower edge side. For this reason, even if the occupant leans on the periphery of the window WF, the front shielding member 43 and the rear shielding member 54 interfere with each other from below so as to cause the occupant and are smoothly drawn out.
[0050]
Further, in the occupant restraint device S1 of the embodiment, the front shielding member 43 covers the front side of the window WF along the lower edge side of the window WF periphery from the vertical edge side portion FVW on the front side of the window WF periphery. The rear shielding member 54 is extended to the rear side, and the rear shielding member 54 extends from the vertical edge side portion RVW on the rear side of the window WF periphery along the lower edge side of the window WF periphery so as to cover the rear side of the window WF. Since it is extended, the front side shielding material 43 covers the front side of the window WF, and the rear side shielding material 54 covers the rear side of the window WF so that the window WF is shielded over a wide range. Can do.
[0051]
Therefore, in the occupant restraint device S1 of the embodiment, even when the occupant leans on the periphery of the window WF, the shielding member 41 (the front shielding member 43 and the rear shielding member) can smoothly shield the window WF when a rollover is detected. 54) can be extended, and the window WF can be shielded in a wide range.
[0052]
In the occupant restraint device S1 of the first embodiment, as shown in FIG. 9A, for example, if the airbag 77 is deployed and inflated while the head H of the occupant M is approaching the window WF, There is a case where the airbag 77 is disposed on the vehicle interior side I of the occupant head H. However, the airbag 77 has the upper end 78a side fixed to the inner panel 2 of the upper edge portion UW of the periphery of the window WF, and the lower end 78b side as a free end that can swing in a direction substantially orthogonal to the window WF. The occupant M also moves away from or approaches the window WF during the deployment of the vehicle. Therefore, as shown in FIG. 9B, when the occupant M moves away from the window WF, the airbag 77 swings in the direction of the vehicle outer side O and easily enters between the occupant M and the shielding member 41. . Then, as shown in FIG. 9C, if the airbag 77 is sandwiched between the occupant head H and the shielding member 41, the airbag 77 can accurately restrain the occupant head H. it can.
[0053]
In the first embodiment, as the shielding member 41, the front shielding member 43 and the rear shielding member 54 each having a substantially triangular plate shape are arranged. However, the occupant of the second embodiment shown in FIGS. As in the restraining device S2, a substantially square plate-shaped member may be used as the rear shielding member 93 in the shielding member 91. In the second embodiment, as the front shielding member 43, the same configuration as that of the first embodiment is used, and therefore, the same reference numerals are given and the description thereof is omitted.
[0054]
The rear shielding member 93 is arranged on the vehicle inner side I with respect to the front shielding member 43 when the feeding is completed, similarly to the front shielding member 43 described above. The rear shielding member 93 has, as a shape when the feeding is completed, the top and bottom of the vertical edge 96 in the rear vertical edge side portion RVW on the storage side as apexes 98 and 100, and extends along the lower edge of the window WF periphery. It has a hypotenuse part 94 connecting the upper tip side vertex part 99 and the tip side vertex part 101 with the tip part 99 as the apex, the tip part 99 extending along the upper edge of the periphery of the window WF as the apex, and It has a substantially trapezoidal shape having an upper edge portion 97 connecting the side vertex portion 98 and the upper tip side vertex portion 99 and a lower edge portion 95 connecting the lower vertical side vertex portion 100 and the tip side vertex portion 101. Note that the length dimension L5 of the lower edge portion 95 is obtained by subtracting the length dimension L3 of the lower edge side storage portion 51 when the front side shielding material 43 is folded and stored from the length dimension L1 of the lower edge portion 45 of the front side shielding material 43. It is set to be substantially equal to the dimension.
[0055]
Further, the rear shielding member 93 is folded and housed between the rear vertical edge 15 of the door frame 12 and the rear vertical edge 24 of the door frame garnish 21 in the rear vertical edge side portion RVW of the window WF. . The length L5 of the lower edge portion 95 of the rear shielding member 93 is set to be slightly smaller than the amount of movement of the distal end side apex portion 101 at the time of feeding, and the hypotenuse at the time when the feeding of the rear shielding member 93 is completed. It is set so that tension is easily generated in the portion 94.
[0056]
Further, the rear shielding member 93 uses the upper vertical side vertex portion 98 and the lower vertical side vertex portion 100 as the rear vertical edge side portion RVW using the locking pin 33 in the same manner as the rear shielding member 54 described above. Is fixed to the rear vertical edge portion 15 of the door frame 12, and the distal end side apex portion 101 which is the lower end side of the oblique side portion 94 is connected to the distal end 70 a of the rear pulling member 70 in the rear feeding means 103. A roller 106 that is slidably guided by the guide rail 105 is attached to an upper tip apex portion 99 that is the upper end side of the oblique side portion 94.
[0057]
The rear feeding means 103 for feeding the rear shielding material 93 of the second embodiment includes a rear traction material 70 and guide rollers 73 and 74 having the same configuration as the rear feeding means 66R of the first embodiment, The roller 106 is attached to the upper tip end portion 99, and the guide rail 105 is attached to the upper edge 13 of the door frame 12 to guide the roller 106 by sliding. The guide rail 105 can guide the roller 106 from the position of the upper tip apex portion 99 when the rear shielding member 93 is folded and stored to the position of the upper tip apex portion 99 when the feeding is completed. Arranged at the edge 13.
[0058]
Further, as shown in FIG. 13, the folding of the rear shielding member 93 during the storage is performed by making a crease along a substantially vertical direction substantially parallel to the vertical edge portion 96 from a flat unfolded state. The bellows fold is made such that the tip end apex portion 101 on the lower end side in 94 approaches the lower vertical apex portion 100 and the upper front apex portion 99 approaches the upper vertical apex portion 98. The folded rear shielding member 93 is wound with a breakable tape material 64 for preventing collapse, and a roller 106 is attached to the upper tip apex portion 99. In addition, the front side shielding material 43 will be folded as shown in FIG. 10 in 1st Embodiment.
[0059]
Then, the pretensioner 67, the guide rollers 71, 72, 73, 74, and the guide rail 105, which are connected to the front traction material 69 and the rear traction material 70, are attached to the inner surface of the door frame 12 in advance. Then, the folded front shield member 43 and the rear shield member 93 are assembled to the garnish 21, and the tip side apex portion 49 of the front shield member 43 is connected to the tip 69 a of the front traction member 69. The distal end side apex portion 101 is connected to the distal end 70 a of the rear pulling member 70. The assembly of the door FD can be completed by assembling the roller 106 to the guide rail 105 and the door trim 39 being attached to the lower part of the lower edge 16 of the door frame. If the door FD is attached to the body 1, the front and rear sides The shielding members 43 and 93, the front and rear feeding means 66F and 103, and the pretensioner 67 can be mounted on the vehicle.
[0060]
In this occupant restraint device S2, since the rear shielding member 93 is formed in a substantially square plate shape, the window WF can be shielded in a larger area than the rear shielding member 54 described above, and the window WF is further spread over a wide range. Can be shielded. Also in the second embodiment, the length L5 of the lower edge 95 of the rear shielding member 93 is lower than the length L1 of the lower edge 45 of the front shielding member 43 when the front shielding member 43 is folded and stored. Since it is set to be substantially equal to the dimension obtained by subtracting the length dimension L3 of the edge side storage part 51, the front end side apex part 49 in the front side shielding material 43 when the front side and rear side shielding materials 43 and 93 are deployed. And the movement stroke of the tip side apex portion 101 in the rear shielding member 93 can be made substantially equal. Therefore, even if the front traction material 69 and the rear traction material 70 are pulled by one drive source 68, the front shielding material 43 and the rear shielding material 93 can be smoothly fed out, and the deployed front shielding is provided. Since the tension can be generated in the oblique side portion 44 of the deployed front side shielding material 43 and the oblique side portion 94 of the rear side shielding material 93 without causing slack in the material 43 or the rear side shielding material 93, the front side shielding material. 43 and the rear-side shielding member 93 can accurately restrain the occupant.
[0061]
In the occupant restraint devices S1 and S2 of the embodiment, the front side feeding means 66F and the rear side feeding means 66R and 103 are disposed in the lower edge side portion DW of the periphery of the window WF. Since the lower edge side portion DW of the window WF periphery has more space than the upper edge side portion UW and the front / rear vertical edge side portions FVW / RVW at the periphery of the window WF, the front side feeding means 66F and the rear side feeding means 66R. -103 can be easily arranged.
[0062]
Further, in the occupant restraint devices S1 and S2 of the embodiment, the front feeding means 66F and the rear feeding means 66R (103) share the pretensioner 67 as a drive source, so the front feeding means 66F and the rear feeding means 66R (103) can be made compact, and mounting on the lower edge side portion DW of the periphery of the window WF becomes easier. Further, in the occupant restraint devices S1 and S2 of the embodiment, since the front side feeding means 66F and the rear side feeding means 66R (103) share the pretensioner 67 as a drive source, the front side feeding means 66F and the rear-side feeding means 66R (103) operate substantially simultaneously, and the front-side shielding material 43 and the rear-side shielding material 54 (93) are drawn almost simultaneously. As a result, when the rollover is detected, the window WF can be shielded quickly and largely.
[0063]
In the occupant restraint devices S1 and S2 of the embodiment, the rear shielding materials 54 and 93 on the side closer to the occupant are arranged on the vehicle inner side I of the front shielding material 43 when the shielding materials 41 and 91 are completely extended. Therefore, when the occupant leans on the periphery of the window WF, the occupant can be caused mainly by interfering from the rear side of the occupant, and there is no possibility of damaging the occupant's face or the like. Of course, if this point is not taken into consideration, the front shielding member 43 may be arranged on the vehicle inner side I of the rear shielding members 54 and 93.
[0064]
Further, in the occupant restraint devices S1 and S2 of the embodiment, as the pretensioner 67, one having a cylinder type main body 68 that pulls the front and rear traction materials 69 and 70 using the gas pressure of the inflator is used. However, for example, a pretensioner including a main body configured to pull the pulling material using an electric motor, a restoring force of a spring, an electromagnetic solenoid, or the like may be used.
[0065]
Furthermore, in the occupant restraint devices S1 and S2 of the embodiment, the case where the shielding members 41 and 91 are arranged on the periphery of the window WF of the front door FD is shown. Of course, the rear door RD is not limited to the front door FD. It is good also as a structure which arrange | positions a shielding material to the periphery of this window WR. Furthermore, it is good also as a structure which arrange | positions a shielding material not only to a door but to the periphery of the window provided in the body which is not a door like a three-row seat vehicle.
[0066]
Further, the shielding material may be configured not only to shield the inside of the window but also to shield the outside of the window.
[0067]
In the occupant restraint devices S1 and S2 of the embodiment, when the control device 90 inputs a rollover detection signal from which the vehicle is predicted to fall, from the rollover sensor 88, the pretensioner 67 is activated and the shielding members 41 and 91 are operated. , The inflator 84 is activated and the airbag 77 is deployed and inflated.Of course, when the control device 90 inputs a side collision detection signal from a side collision sensor (not shown), It is good also as a structure which operates the pretensioner 67 and the inflator 84, draws out the shielding materials 41 and 91, and expands and inflates the airbag 77.
[Brief description of the drawings]
FIG. 1 is a front view of an occupant restraint device according to a first embodiment of the present invention as viewed from the inside of a vehicle.
FIG. 2 is a front view of the door according to the first embodiment as viewed from the inside of the vehicle.
3 is a schematic cross-sectional view taken along the line III-III in FIG.
4 is a schematic cross-sectional view of the IV-IV part in FIG. 1. FIG.
FIG. 5 is a schematic cross-sectional view taken along the line VV in FIG.
6 is a schematic cross-sectional view of a VI-VI part in FIG. 1. FIG.
7 is a schematic cross-sectional view of a VII-VII site in FIG. 1. FIG.
FIG. 8 is a front view of the occupant restraint device according to the first embodiment when viewed from the vehicle interior side.
FIG. 9 is a diagram for explaining the behavior of the airbag when the vehicle falls in the occupant restraint device of the first embodiment.
FIG. 10 is a diagram illustrating a folding process of the front shielding member in the first embodiment.
FIG. 11 is a diagram illustrating a folding process of the rear shielding material in the first embodiment.
FIG. 12 is a diagram showing an occupant restraint device according to a second embodiment.
FIG. 13 is a diagram illustrating a folding process of the rear shielding material in the second embodiment.
[Explanation of symbols]
41.91 ... shielding material,
43. Front side shielding material,
54.93 ... rear side shielding material,
66F: Front feeding means,
66R · 103: Rear feeding means,
67 ... Pretensioner (drive source),
68 ... the body,
69 ... front traction material,
70: Rear traction material,
71, 72, 73, 74 ... guide rollers,
WF ... window,
DW (on the periphery of window) lower edge side,
FVW (front edge of the window) front vertical edge side part,
RVW (periphery of window) rear vertical edge side part,
S1, S2 ... Occupant restraint device.

Claims

An occupant restraint device having a configuration in which a shielding material is drawn out from a peripheral edge of the window so that the window can be shielded when a rollover of the vehicle is detected,
Each of the shielding materials comprises a front shielding material that covers the front side of the window during shielding, and a rear shielding material that covers the rear side of the window during shielding,
The front shielding material is housed in at least a vertical edge side portion extending in a substantially vertical direction on the front side of the window periphery so as to substantially rise from the lower edge side of the window periphery when extended.
The rear shielding material is housed in at least a vertical edge side portion extending substantially in the vertical direction on the rear side of the window periphery so as to substantially rise from the lower edge side of the window periphery when extended.
In the lower edge portion of the window periphery,
A front-feeding means that is connected to the front-side shielding material and that, when activated, allows a connection portion with the front-side shielding material to be fed rearward along the lower edge side of the window periphery;
Back side feeding means connected to the rear side shielding material, enabling operation to be fed forward along the lower edge side of the window peripheral edge when connected with the rear side shielding material,
Is arranged,
The occupant restraint device, wherein the front side feeding means and the rear side feeding means are configured to share a drive source.