JP3826261B2

JP3826261B2 - Body structure

Info

Publication number: JP3826261B2
Application number: JP2000181768A
Authority: JP
Inventors: 孝之三宅; 進西本; 謙一佐藤; 啓如柴田
Original assignee: Mitsubishi Motors Corp
Current assignee: Mitsubishi Motors Corp
Priority date: 2000-06-16
Filing date: 2000-06-16
Publication date: 2006-09-27
Anticipated expiration: 2020-06-16
Also published as: JP2002002533A

Description

【０００１】
【発明の属する技術分野】
本発明は、略ハット形のパネル部材と同パネル部材に付くリンフォース部材とを組み合わせて構成される車体構造に関する。
【０００２】
【従来の技術】
自動車（車両）の車体は、衝突安全性を確保するために高い剛性強度が求められる。
【０００３】
そこで、車体の骨格をなす細長のピラー部などでは、両縁部にフランジ部をもつハット形断面のアウタパネルに、フランジ部を介して、インナパネルを組み付けた閉断面形状の構造物が用いられる。そして、同構造物のうち、さらに補強を必要とする箇所に、フランジ部を用いて、複数種の鋼板製のリンフォース部材を組み付けて（追加）、必要な強度を確保することが行われている。
【０００４】
ところで、こうしたアウタパネルに多くの部材をフランジ接合で組み付けて剛性強度を確保する構造は、組付精度のばらつきが大きい上、溶接部分がもたらす剛性低下により、求められる剛性強度が確保しにくい。
【０００５】
そこで、閉断面形状を呈した１成形品の細長リンフォース部材で、複数種のリンフォース部材に置き換わる剛性強度を確保することが考えられている。
【０００６】
例えば特開平８−３３７１８２号や特開平８−１９２２３８号に示されるようなハイドロフォーム成形で形成された閉断面形状の細長部材や、押し出し成形で形成された断面が角形状の細長部材をアウタパネルと組み合うリンフォース部材として用いることが考えられる。
【０００７】
こうした一体成形品のリンフォース部材は、連続した周壁で閉断面形状が形成されること、さらには周壁の伸びがもたらす加工硬化などにより、１部材で、複数種のパネル部材に相当する高い剛性強度が確保される。
【０００８】
【発明が解決しようとする課題】
通常、アウタパネルに板金製パネルを組付けるときは、アウタパネルの両側にある各フランジ部のフランジ面にリンフォース部材を重ね合わせて固定している。
【０００９】
そこで、一体成形品のリンフォース部材を組付ける場合、これにならって同方向側に向く一対のフランジ面に閉断面形状のリンフォース部材を重ね合わせて固定することになる。
【００１０】
ところが、この一対のフランジ面を用いた同位置合わせ構造は、フランジ面とリンフォース部材との間での部材の動き得る方向が制約される上、一体成形品のリンフォース部材が高剛性なので、製品のばらつきを吸収する能力はかなり低く、アウタパネルやリンフォース部材に製品形状のばらつきがある場合、アウタパネルとリンフォース部材との位置合わせが良好に行えない。特に一対のフランジ部が鋭角的に傾斜しているようなアウタパネルだと、製品のばらつきがあれば、アウタパネルにリンフォース部材を自然に位置合わせること自体が難しい。
【００１１】
このような組付不良の発生は、ピラーの遮音性能が損なわれたり、水漏れを発生させたりする。
【００１２】
そこで、このような場合、外部から力を加えて、各フランジ面とリンフォース部材の外形部分とを無理やり突き合わせて両者を固定することとなるが、これだと、かなり作業が面倒になる上、部品の各部に無用な応力を残留させる結果となるので、簡単には閉断面形状のリンフォース部材を用いた際に起こりうる組付不良が解決できない。
【００１３】
本発明は上記事情に着目してなされたもので、その目的とするところは、高剛性強度の確保のために組み合う、略ハット形のパネル部材と閉断面形状のリンフォース部材との位置合わせが無理なく自然に行える車体構造を提供することにある。
【００１４】
【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に記載の車体部材は、断面形状が略ハット形でかつ長手方向に円弧状に曲がる部分を有する細長のパネル部材と組み合う、パネル部材の曲がり部分にならう曲がり部分を有するハイドロフォーム成形あるいは押し出し成形で成形された細長のリンフォース部材を、一側面側をパネル部材の開口幅より幅狭として他側面側を該一側面よりも幅広とした略凸形をなす閉断面形状で構成し、パネル部材に対して、幅狭部をパネル部材の凹空間に収め、幅広部の幅方向一端側の側面をパネル部材の一方の縁部から側方に延出するフランジ部に重ね合わせ、幅広部の幅方向他端側の端面をパネル部材の他方の縁部からフランジ部の延出方向と交差する方向に延びる縦壁部に当接させて組み合せるようにした。
【００１５】
これにより、リンフォース部材は、パネル部材と組み合わさる際、幅方向片側が略ハット形のパネル部材の縦壁部にならってずれたり、さらにはそれと反対側がパネル部材のフランジ部にならってずれたりして、製品のばらつきが吸収されるようになる。
【００１６】
それ故、無理なく自然にパネル部材とリンフォース部材との位置合わせが行えるので、組付不良が生じない上、無用な応力を生じさせずに、リンフォース部材とパネル部材との組み合せが行える。
【００１７】
請求項２に記載の車体構造は、上記目的に加え、さらにリンフォース部材を活用して窓ガラス部材の支持剛性を高めるよう、パネル部材とリンフォース部材とが、パネル部材の片側の縁部で窓ガラス部材を支える車体のピラー部を構成する構造と前提とした上で、窓ガラス部材を受ける縁部裏面にリンフォース部材の幅狭側の側面を重なるよう配置して、該リンフォース部材の幅広部がなす箱状断面部分で縁部を補強するようにした。
【００１８】
特に請求項１、請求項２の車体構造では、パネル部材から露呈しているリンフォース部材の露呈部には艤装部材の取付孔として用いる複数の孔を設けるようにしてもよく、このようにすればリンフォース部材の剛性強度を利用して、艤装部材の取付けが容易に行えるようになる。
【００１９】
【発明の実施の形態】
以下、本発明を図１ないし図７に示す一実施形態にもとづいて説明する。
【００２０】
図１は、例えば４ドア自動車（車両）の車体１を示し、図３〜図７は同車体１の各部における断面を示してして、同車体１の側部にはフロントドア（図示しない）で開閉されるフロント側乗降口２（以下、単に乗降口と称す）が形成してある。
【００２１】
この乗降口２の周りは、前部に配置されたフロントピラー部３、上部に配置されたルーフレール部４、後部に配置されたセンタピラー部５、下部に配置されたサイドシル部６といった車体１の骨格部材で囲んである。なお、フロントピラー部３は、フロントウインド８の側部に組み付いて上下方向に延びる骨格部分で、ルーフレール部４はルーフパネル９と組み付いてフロントピラー部３の末端部分から車体後方に延びる骨格部分で、サイドシル部６はフロアパネル（図示しない）に組み付いてフロントピラー部３の下端部分から車体後方に延びる骨格部分で、センタピラー部５はルーフレール部４の中間部分とサイドシル部６の中間部分との間を連結して上下に延びる骨格部分である。
【００２２】
そして、この乗降口２の周辺を分解した骨格構造が図２に示してある。
【００２３】
図２を参照して同構造を説明すれば、フロントピラー部３、ルーフレール部４、センタピラー部５およびサイドシル部６の外皮部材は、図２に示されるように各部の形状に合わせて枠形に一体成形してなるサイドアウタパネル７から形成してある。このサイドアウタパネル７のうち、フロントピラー部３の外面をなす細長のアウタパネル部分１１、ルーフレール部４の外面をなす細長のアウタパネル部分１２、センタピラー部５の外面をなすアウタパネル部分１３、サイドシル部６の外面をなすアウタパネル部分１４は、いずれも両側にフランジ部をもつ断面形状が略ハット形に形成してある。なお、１１ａは側方に張り出すアウタパネル部分１１の一対のフランジ部を示し、１２ａは同じくアウタパネル部分１２の一対のフランジ部を示し、１３ａは同じくアウタパネル部分１３の一対のフランジ部を示し、１４ａは同じくアウタパネル部分１４の一対のフランジ部を示している。
【００２４】
そして、アウタパネル部分１１が、リンフォース部材１６と組み合って、フロントウインド８の側部にフロントピラー部３を構成し、アウタパネル部分１２が、図６に示されるようにサイドルーフインナパネル１７とフランジ接合で組み合って、ルーフパネル９の側部に閉断面形状のルーフレール部４を構成し、アウタパネル部分１３が、図７に示されるようにセンタピラーインナパネル１８や鋼板製のリンフォース部材１９とフランジ接合で組み合って、閉断面形状のセンタピラー部５を構成し、アウタパネル部分１４が、鋼板製のリンフォース部材２０とフランジ接合で組み合って、フロアパネルの側部に閉断面形状のサイドシル部６を構成している。なお、２１はフロントピラー部３の途中をフロントルーフレール（図示しない）につなぐパネル部材を示し、２２はアウタパネル部分１１の下部分に組付くフェンダパネル部材を示し、１７ａはサイドルーフインナパネル１７のフランジを示し、１８ａはセンタピラーインナパネル１８のフランジを示し、１９ａリンフォース部材１９のフランジを示している。
【００２５】
このうちリンフォース部材１６には、閉断面形状をなした細長の一体成形品、例えばハイドロフォーム成形で成形された細長の成形品が用いられていて、アウタパネル部分１１をハイドロフォーム成形がもたらす高い剛性強度で補強している。なお、ハイドロフォーム成形とは、上型と下型とがなす製品形状の型内に素管を収め、同素管内に水（加圧液）を圧入して内部からの加圧により素管を膨らませ、膨らむ素管を上型と下型の型面になじませることにより、型面の形状にならう閉断面形状の製品を成形する方法をいい、連続した周壁で閉断面形状が形成されること、素管の周壁が伸びることで生じる加工硬化により、１部品で、複数種のリンフォース類に相当する高い剛性強度が得られるものである。具体的には、リンフォース部材１６には、図２に示されるようにサイドシル部６の前部とラップする下側の部位からセンタピラー部５近くの上側の部位までのピラー形状にならって延びる筒状（閉断面形状）をなしている。そして、この閉断面の一体成形品の採用により、アウタパネル部分１１を補強する補強材の部品点数を削減したり、補強に伴う重量を軽減したりしている。
【００２６】
このリンフォース部材１６は、特に上部１６ｂがフロントドアのサッシュ部（あるいはドアガラス）の形状にならって円弧状に曲がるため、同じくフロントドアのサッシュ部（あるいはドアガラス）の形状にならって曲がるアウタパネル部分１１の上部分１１ｄとの位置合わせの際、製品（リンフォース部材１６やアウタパネル部分１１）にばらつきがあると、隙間なく両者が密接するような位置合わせが行え難い。
【００２７】
そこで、この部位の位置合わせに本発明が適用してある。むろん、他の部分の位置合わせに本発明を適用しても構わない。
【００２８】
同位置合わせ構造は、リンフォース部材１６が相手部材であるアウタパネル部分１１に対して、隙間なく密接したまま、製品のばらつきが吸収し得る方向にずらし得るようにしたものである。
【００２９】
具体的には、リンフォース部材１６は、素管から膨らますハイドロフォーム成形によって、サイドシル部６とラップして組み付く下端部分１６ｃから、フロントドアのサッシュ部の根元付近（何れも図示ない）までの各部の領域Ｘ１における断面形状を、アウタパネル部分１１の下部分１１ｃと嵌挿可能な角形、詳しくは図２中に拡大した図で示されるように車室内へ向く面を幅広、車室外へ向く面を幅狭とした台形の一定閉断面形状とし、フロントドアのサッシュ部の根元付近からルーフレール部４に至る末端までの上部の領域Ｘ３における断面形状を、アウタパネル部分１１と嵌挿可能な逆Ｔ字状、詳しくは図２中の拡大した図で示されるようにアウタパネル部分１１と向き合う側（一側部）を幅狭とし、それとは反対側の他側面側をそれより幅広とした略凸形の一定閉断面形状としてある。これで、特に製品ばらつきの影響を受けやすい領域Ｘ３の部位だけを製品ばらつきの吸収に適した閉断面形状にしてある。なお、領域Ｘ１と領域Ｘ３との間に形成されている領域Ｘ２は、台形形状から略凸形形状に断面が漸次変化する断面移行部分を示す。
【００３０】
このリンフォース部材１６のうち、台形状の断面をなす下部分１６ａ（領域Ｘ１）は、図５に示されるようにアウタパネル部分１１の下部分１１ｃやアウタパネル部分１４の端部分１４ｃ、リンフォース部材２０の端部分２０ｃの内部に嵌まり、溶接で相互を接合してある。
【００３１】
位置合わせが難しいとされるリンフォース部材１６の上部分１６ｂ（略凸形の断面が始まる中段から端末まで：領域Ｘ３）は、図３および図４に示されるように幅狭部２５をアウタパネル部分１１の上部分１１ｄがなす凹空間内に収め、幅広部２６の幅狭側に向く側面のうち片側、詳しくは乗降口２とは反対側（一端側）に配置される側面２６ａを、フロントウインド８の窓ガラス部材８ａを下側から支えるフランジ部１１ａ（アウタパネル部分１１の一方の縁部から延出するフランジ部に相当）の裏面やルーフパネル９のドリップレール９ａを形成するフランジ１１ａの裏面に重ね合わせてある。また幅広部２６の乗降口２側に向く端面２６ｂは、上部分１１ｄの上記フランジ部１１ａとは反対側から延出してフランジ部１１ａの延出方向と交差する方向に延びる縦壁部の壁面、例えばフランジ部１１ｂと直角方向に連なる縦壁部１１ｂの内面に突き合わせてある。
【００３２】
そして、この幅方向で当て方を異ならせた位置合わせにより、リンフォース部材１６の上部分１６ｂとアウタパネル部分１１の上部分１１ｄとを、図４中の矢印α、βで示されるように部品相互が接したまま、幅方向や奥行き方向に対して若干動かせる（ずらす）ように、互いに組み合わせている。
【００３３】
したがって、リンフォース部材１６の上部分１６ａは、アウタパネル部分１１と組み合わせる際、製品にばらつきがあると、上部分１６ａの幅方向両側が、自然にアウタパネル部分材１１の縦壁部１１ｂやフランジ面と接した状態のままずれて、アウタパネル部分１１と組み合う。つまり、リンフォース部材１６とアウタパネル部分材１１は、製品のばらつきが吸収されて組み合い、組付不良がなくなる。
【００３４】
それ故、無理なく自然にアウタパネル部分１１とリンフォース部材１６との位置合わせが行えるので、無用な応力を生じさせずに、閉断面成形品で形成されたリンフォース部材１６をアウタパネル部分１１に溶接で固定することができる。つまり、閉断面品のリンフォース部材１６で、良好にアウタパネル部分１１が補強できる。
【００３５】
特に図４に示されるように窓ガラス部材８ａを受けるフランジ部１１の裏面にリンフォース部材１６の幅狭側の側面２６ａを重なるように配置すると、幅広部２６の高い剛性強度をもつ箱状断面部分を利用してフランジ部１１の補強が行えるので、窓ガラス部材８ａの支持剛性を高めることができ、合理的に窓ガラス部材８を制振させることができる。なお、図４中の２７は、窓ガラス部材８ａの外縁部を装飾するモールディング部材を示している。
【００３６】
またフロントピラー部３の補強に関して、図２中に示されるようにリンフォース部材１６の下端部にサイドシル部６の端部とラップする下端部分１６ｃを形成したので、剛性低下の要因となる角部でのリンフォース部材同士の溶接は避けられるので、フロントピラー部３の合理的な補強が行える。
【００３７】
また図２〜図４中に示されるようにアウタパネル部分１１から露呈するリンフォース部材１６の周壁の各部に複数の孔３０を設けて、各種トリムやハーネスなど艤装部材（図示しない）の取付孔として用いることにより、リンフォース部材１６の剛性強度を利用して、各種の艤装部材の取付けが容易にできる。
【００３８】
また本実施形態では、閉断面成形品のリンフォース部材１６を用いてフロントピラー部３を補強する際に生じるウェザストリップ部材２８の抜出を防ぐ工夫が施してある。
【００３９】
すなわち、閉断面成形品のリンフォース部材１６をフロントピラー部３に組付けることにより、乗降口２を囲むウェザストリップ部材２８が付く環状のフランジ部分２９（図１中の太線で示した部分）は、図３〜図５に示されるようなアウタパネル部分１１で見られる１枚のフランジ部１１ａだけの領域、図６に示されるようなアウタパネル部分１１とサイドルーフインナパネル１７との接合部に見られる２枚のフランジ部１１ａ，１７ａとが重なり合う領域、図７に示されるようなアウタパネル部分１３ａとセンタピラーインナパネル１８とリンフォース部材１９との接合部に見られる３枚のフランジ部１３ａ，１８ａ，１９ａとが重なり合う領域となるので、共通のウェザストリップ部材２８を使用した場合、２枚のフランジ部１１ａ，１７ａや３枚のフランジ部１３ａ，１８ａ，１９ａが重なり合う箇所では、フランジ部全体の厚みが厚くなるのでウェザストリップ２８の嵌合力が確保されるが、１枚のフランジ部１１ａだけの箇所では、フランジ部全体の厚みが薄いのでウェザストリップ２８の嵌合力が確保しにくく、ウェザストリップ部分が同部分において離脱しやすくなる。
【００４０】
そこで、図２中の拡大した部分のように１枚のフランジ部１１ａだけとなる領域Ｓには、厚み寸法を厚くした部分、例えば厚み方向にフランジ部分の板面を交互に略Ｕ字状に折り曲げて厚み方向の寸法を増した部分３０を形成して、共通のウェザストリップ部材２８を使用しても、離脱するようなことが起きないようにした。
【００４１】
なお、本発明は上述した実施形態に限定されることなく、本発明の主旨を逸脱しない範囲内で種々変更して実施しても構わない。例えば実施形態では、車体の骨格部材となるセンタピラー部に閉断面成形品で形成されたリンフォース部材を組み合わせる例を挙げたが、これに限らず、他の車体の骨格をなすアウタパネル部分に用いてもよい。またリンフォース部材は、ハイドフォーム成形で成形した成形品を用いたが、押し出し成形によって成形される閉断面成形品を用いてもよい。
【００４２】
【発明の効果】
以上説明したように請求項１に記載の発明に記載の発明によれば、高剛性強度の確保のために、閉断面成形品で形成されるリンフォース部材を略ハット形のパネル部材に組み合わせる際、製品ばらつきが有っても、リンフォース部材の幅方向片側が略ハット形のパネル部材の縦壁部にならってずれたり、さらにはそれと反対側がパネル部材のフランジ部にならってずれたりして、同ばらつきを吸収しながら組み合うようになる。
【００４３】
それ故、無理なく自然にパネル部材とリンフォース部材との位置合わせが行えるので、組付不良をなくすことができるだけでなく、無用な応力を生じさせずに組み合うリンフォース部材とパネル部材とを固定することができる。
【００４４】
請求項２に記載の発明によれば、パネル部材の縁部で窓ガラス部材を支えるピラー構造を構成する場合、リンフォース部材の幅広部がなす箱状断面部分で、窓ガラス部材を支える縁部を補強する構造となるので、リンフォース部材を活用して窓ガラス部材の支持剛性を高めることができ、窓ガラス部材の制振効果の向上が図れるといった効果を奏する。
【図面の簡単な説明】
【図１】本発明の一実施形態に係る閉断面成形品のリンフォース部材で補強された車体構造を示す斜視図。
【図２】同車体構造を分解した斜視図。
【図３】図１中のＡ−Ａ線に沿うアウタパネル部分の断面図。
【図４】図１中のＢ−Ｂ線に沿うアウタパネル部分の断面図。
【図５】図１中のＣ−Ｃ線に沿うアウタパネル部分の断面図。
【図６】図１中のＤ−Ｄ線に沿うアウタパネル部分の断面図。
【図７】図１中のＥ−Ｅ線に沿うセンタピラー部の断面図。
【符号の説明】
１…車体
５…センタピラー部
８ａ…窓ガラス部材
１０…サイドアウタパネル
１１…アウタパネル部分（パネル部材）
１１ａ…フランジ部（縁部）
１１ｂ…縦壁部
１６…リンフォース部材
２５…幅狭部
２６…幅広部。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle body structure configured by combining a substantially hat-shaped panel member and a reinforcement member attached to the panel member.
[0002]
[Prior art]
A vehicle body of an automobile (vehicle) is required to have high rigidity and strength in order to ensure collision safety.
[0003]
Therefore, in a long and narrow pillar portion forming the skeleton of the vehicle body, a closed cross-sectional structure in which an inner panel is assembled to a hat-shaped outer panel having flange portions on both edges via flange portions is used. And, in the same structure, a plurality of types of reinforcement members made of steel plates are assembled (additional) using a flange portion at a place where further reinforcement is required to ensure the necessary strength. Yes.
[0004]
By the way, the structure in which a large number of members are assembled to the outer panel by flange joining to ensure the rigidity and strength has a large variation in assembly accuracy, and the required rigidity and strength are difficult to be secured due to the decrease in rigidity caused by the welded portion.
[0005]
In view of this, it has been considered to secure rigidity enough to replace a plurality of types of reinforcement members with a single, long and narrow reinforcement member having a closed cross-sectional shape.
[0006]
For example, as shown in JP-A-8-337182 and JP-A-8-192238, an elongated member having a closed cross-sectional shape formed by hydroforming or an elongated member having a square cross-section formed by extrusion molding is used as an outer panel. It can be considered to be used as a reinforcement member to be combined.
[0007]
These integrally molded reinforcement members have high rigidity and strength equivalent to multiple types of panel members in one member due to the closed cross-sectional shape formed by the continuous peripheral wall and the work hardening caused by the expansion of the peripheral wall. Is secured.
[0008]
[Problems to be solved by the invention]
Usually, when a sheet metal panel is assembled to the outer panel, a reinforcement member is overlapped and fixed on the flange surface of each flange portion on both sides of the outer panel.
[0009]
Therefore, when assembling the integrally formed reinforcement member, the reinforcement member having a closed cross-sectional shape is overlapped and fixed on a pair of flange surfaces facing in the same direction.
[0010]
However, the same alignment structure using the pair of flange surfaces restricts the direction in which the member can move between the flange surface and the reinforcement member, and the integrally formed reinforcement member has high rigidity. The ability to absorb product variations is quite low, and when the outer panel or reinforcement member has variations in product shape, the outer panel and reinforcement member cannot be aligned well. In particular, in the case of an outer panel in which a pair of flange portions are inclined at an acute angle, it is difficult to naturally align the reinforcement member with the outer panel if there are variations in the product.
[0011]
The occurrence of such an assembly failure may impair the sound insulation performance of the pillar or cause water leakage.
[0012]
Therefore, in such a case, force is applied from the outside, and each flange surface and the outer portion of the reinforcement member are forcedly abutted to fix both, but this makes the work considerably troublesome, As a result, useless stress remains in each part of the component. Therefore, it is not possible to easily solve the assembly failure that may occur when a reinforcement member having a closed cross-sectional shape is used.
[0013]
The present invention has been made by paying attention to the above circumstances, and the purpose of the present invention is to align the position of the substantially hat-shaped panel member and the reinforcement member having the closed cross-sectional shape, which are combined to ensure high rigidity and strength. The object is to provide a vehicle structure that can be carried out naturally without difficulty.
[0014]
[Means for Solving the Problems]
In order to achieve the above object, the vehicle body member according to claim 1 follows a bent portion of the panel member combined with an elongated panel member having a substantially hat-shaped cross section and a portion bent in an arc shape in the longitudinal direction. An elongated reinforcement member formed by hydroform molding or extrusion molding having a bent portion has a substantially convex shape in which one side is narrower than the opening width of the panel member and the other side is wider than the one side. Constructed in a closed cross-sectional shape, and with respect to the panel member, the narrow portion is housed in the recessed space of the panel member, and the side surface of one end in the width direction of the wide portion is extended laterally from one edge of the panel member. Superposed on the flange part, the end face on the other end side in the width direction of the wide part is brought into contact with the vertical wall part extending in the direction intersecting with the extending direction of the flange part from the other edge part of the panel member and combined. .
[0015]
As a result, when the reinforcement member is combined with the panel member, one side in the width direction is displaced along the vertical wall portion of the substantially hat-shaped panel member, and the other side is displaced along the flange portion of the panel member. As a result, variations in products are absorbed.
[0016]
Therefore, since the alignment between the panel member and the reinforcement member can be performed naturally without difficulty, the assembly failure does not occur, and the reinforcement member and the panel member can be combined without causing unnecessary stress.
[0017]
In addition to the above-described object, the vehicle body structure according to claim 2 further includes a panel member and a reinforcement member at an edge on one side of the panel member so that the reinforcement member is further utilized to increase the support rigidity of the window glass member. Based on the premise of the structure of the pillar portion of the vehicle body that supports the window glass member, the side surface on the narrow side of the reinforcement member is arranged to overlap the rear surface of the edge receiving the window glass member, and the reinforcement member The edge portion is reinforced with a box-shaped cross-section formed by the wide portion.
[0018]
In particular, in the vehicle body structure of claims 1 and 2, a plurality of holes used as attachment holes for the outfitting member may be provided in the exposed portion of the reinforcement member exposed from the panel member. For example, by using the rigidity strength of the reinforcement member, the attachment member can be easily attached.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on an embodiment shown in FIGS.
[0020]
FIG. 1 shows a vehicle body 1 of, for example, a four-door automobile (vehicle), and FIGS. 3 to 7 show cross sections of the respective parts of the vehicle body 1, and a front door (not shown) is provided on a side portion of the vehicle body 1. A front side entrance / exit 2 (hereinafter simply referred to as an entrance / exit) is formed.
[0021]
Around the entrance 2, there is a front pillar portion 3 disposed at the front portion, a roof rail portion 4 disposed at the upper portion, a center pillar portion 5 disposed at the rear portion, and a side sill portion 6 disposed at the lower portion. Surrounded by a skeleton member. The front pillar portion 3 is a skeleton portion that is assembled to the side portion of the front window 8 and extends in the vertical direction. The roof rail portion 4 is assembled to the roof panel 9 and extends from the end portion of the front pillar portion 3 to the rear of the vehicle body. The side sill portion 6 is a frame portion that is assembled to a floor panel (not shown) and extends from the lower end portion of the front pillar portion 3 to the rear of the vehicle body, and the center pillar portion 5 is an intermediate portion between the roof rail portion 4 and the side sill portion 6. It is the skeleton part which connects between parts and extends up and down.
[0022]
FIG. 2 shows a skeleton structure obtained by disassembling the periphery of the entrance 2.
[0023]
Referring to FIG. 2, the structure of the front pillar portion 3, the roof rail portion 4, the center pillar portion 5 and the side sill portion 6 has a frame shape in accordance with the shape of each portion as shown in FIG. Is formed from a side outer panel 7 formed integrally with the outer side panel 7. Of the side outer panel 7, an elongated outer panel portion 11 that forms the outer surface of the front pillar portion 3, an elongated outer panel portion 12 that forms the outer surface of the roof rail portion 4, an outer panel portion 13 that forms the outer surface of the center pillar portion 5, and the side sill portion 6 Each outer panel portion 14 forming the outer surface has a substantially hat-shaped cross section with flange portions on both sides. In addition, 11a shows a pair of flange part of the outer panel part 11 projecting sideways, 12a shows a pair of flange part of the outer panel part 12 similarly, 13a shows a pair of flange part of the outer panel part 13, and 14a shows Similarly, a pair of flange portions of the outer panel portion 14 are shown.
[0024]
Then, the outer panel portion 11 is combined with the reinforcement member 16 to form the front pillar portion 3 on the side portion of the front window 8, and the outer panel portion 12 is joined to the side roof inner panel 17 and the flange as shown in FIG. Are combined to form a roof rail portion 4 having a closed cross-sectional shape on the side of the roof panel 9, and the outer panel portion 13 is joined to the center pillar inner panel 18 or the steel plate reinforcement member 19 as shown in FIG. Are combined to form a center pillar portion 5 having a closed cross-sectional shape, and an outer panel portion 14 is combined with a reinforcement member 20 made of a steel plate by flange joining to form a side sill portion 6 having a closed cross-sectional shape on the side of the floor panel. is doing. Reference numeral 21 denotes a panel member that connects the middle of the front pillar portion 3 to a front roof rail (not shown), 22 denotes a fender panel member that is assembled to the lower portion of the outer panel portion 11, and 17a denotes a flange of the side roof inner panel 17. 18a indicates a flange of the center pillar inner panel 18, and 19a indicates a flange of the reinforcement member 19.
[0025]
Among them, the reinforcement member 16 is a long and narrow integrally formed product having a closed cross-sectional shape, for example, a thin and long molded product formed by hydroforming, and the outer panel portion 11 is provided with high rigidity by hydroforming. Reinforced with strength. Hydroform molding is a process in which an upper pipe and a lower mold are housed in a product-shaped mold, water (pressurized liquid) is pressed into the same pipe, and the raw pipe is formed by pressurization from the inside. A method of forming a product with a closed cross-sectional shape that conforms to the shape of the mold surface, by inflating and adapting the inflating element tube to the mold surface of the upper mold and the lower mold, and a closed cross-sectional shape is formed with a continuous peripheral wall In addition, high rigidity and strength corresponding to a plurality of types of reinforcements can be obtained with one component by work hardening caused by extending the peripheral wall of the raw tube. Specifically, as shown in FIG. 2, the reinforcement member 16 extends in a pillar shape from a lower part that wraps with the front part of the side sill part 6 to an upper part near the center pillar part 5. It has a cylindrical shape (closed cross-sectional shape). By adopting this integrally molded product with a closed cross section, the number of parts of the reinforcing material that reinforces the outer panel portion 11 is reduced, or the weight associated with reinforcement is reduced.
[0026]
The reinforcement member 16 has an upper panel 16b that bends along the shape of the sash portion (or door glass) of the front door, and thus bends according to the shape of the sash portion (or door glass) of the front door. If the product (reinforcement member 16 or outer panel portion 11) has a variation in alignment with the upper portion 11d of the portion 11, it is difficult to perform alignment so that the two are in close contact with each other without a gap.
[0027]
Therefore, the present invention is applied to this position alignment. Of course, the present invention may be applied to alignment of other portions.
[0028]
The alignment structure is configured such that the reinforcement member 16 can be shifted in a direction in which product variations can be absorbed while the reinforcement member 16 is in close contact with the outer panel portion 11 as a counterpart member without a gap.
[0029]
Specifically, the reinforcement member 16 is swelled from the raw tube, and is formed from the lower end portion 16c that wraps and assembles with the side sill portion 6 to the vicinity of the root of the sash portion of the front door (both not shown). The cross-sectional shape of each portion in the region X1 is a square shape that can be inserted into the lower portion 11c of the outer panel portion 11, more specifically, as shown in the enlarged view in FIG. 2, the surface facing the vehicle interior is wide and the surface faces the vehicle exterior A trapezoidal constant closed cross-sectional shape with a narrow width, and an inverted T-shape that allows the outer panel portion 11 to be inserted into the cross-sectional shape in the upper region X3 from the vicinity of the base of the sash portion of the front door to the end to the roof rail portion 4 As shown in an enlarged view in FIG. 2, the side (one side) facing the outer panel portion 11 is made narrower, and the other side opposite to the outer panel portion 11 is placed on the other side. There a constant closed cross section of substantially convex shape with a wider. Thus, only the region X3 that is particularly susceptible to product variations has a closed cross-sectional shape suitable for absorbing product variations. Note that a region X2 formed between the region X1 and the region X3 indicates a cross-sectional transition portion where the cross section gradually changes from a trapezoidal shape to a substantially convex shape.
[0030]
Of the reinforcement member 16, a lower portion 16a (region X1) having a trapezoidal cross section includes a lower portion 11c of the outer panel portion 11, an end portion 14c of the outer panel portion 14, and a reinforcement member 20 as shown in FIG. Are fitted into the end portion 20c of the steel plate and joined together by welding.
[0031]
As shown in FIGS. 3 and 4, the upper portion 16b of the reinforcement member 16 that is difficult to align (from the middle stage where the substantially convex cross section starts to the end: region X3) has the narrow portion 25 as the outer panel portion. 11 is placed in a concave space formed by the upper portion 11d of the eleventh portion, and a side surface 26a disposed on one side of the wide portion 26 facing the narrow side, more specifically, on the opposite side (one end side) to the entrance 2 is disposed on the front window. 8 on the back surface of the flange portion 11a that forms the drip rail 9a of the roof panel 9 and the flange portion 11a (corresponding to a flange portion extending from one edge of the outer panel portion 11) that supports the window glass member 8a of FIG. They are superimposed. The end surface 26b of the wide portion 26 facing the entrance / exit 2 is a wall surface of a vertical wall portion extending from a side opposite to the flange portion 11a of the upper portion 11d and extending in a direction intersecting the extending direction of the flange portion 11a, For example, it is abutted against the inner surface of the vertical wall portion 11b that extends in a direction perpendicular to the flange portion 11b.
[0032]
Then, the positioning of the reinforcement member 16 and the upper portion 11d of the outer panel portion 11 are made to align each other as indicated by arrows α and β in FIG. They are combined with each other so that they can be moved (shifted) slightly in the width direction and the depth direction while being in contact with each other.
[0033]
Accordingly, when the upper portion 16a of the reinforcement member 16 is combined with the outer panel portion 11 and there are variations in the product, both sides in the width direction of the upper portion 16a are naturally aligned with the vertical wall portion 11b and the flange surface of the outer panel portion material 11. The contact with the outer panel portion 11 is combined with the outer panel portion 11 while being in contact. That is, the reinforcement member 16 and the outer panel partial member 11 are assembled by absorbing the variation in the product, and there is no defective assembly.
[0034]
Therefore, since the outer panel portion 11 and the reinforcement member 16 can be aligned naturally without difficulty, the reinforcement member 16 formed of a closed cross-section molded product is welded to the outer panel portion 11 without causing unnecessary stress. It can be fixed with. That is, the outer panel portion 11 can be reinforced with the reinforcement member 16 having a closed cross-section.
[0035]
In particular, when the narrow side surface 26a of the reinforcement member 16 overlaps the back surface of the flange portion 11 that receives the window glass member 8a as shown in FIG. Since the flange portion 11 can be reinforced using the portion, the support rigidity of the window glass member 8a can be increased, and the window glass member 8 can be reasonably damped. In addition, 27 in FIG. 4 has shown the molding member which decorates the outer edge part of the window glass member 8a.
[0036]
Further, regarding the reinforcement of the front pillar portion 3, as shown in FIG. 2, the lower end portion 16 c that wraps with the end portion of the side sill portion 6 is formed at the lower end portion of the reinforcement member 16. Since the reinforcement members between the reinforcement members can be avoided, the front pillar portion 3 can be rationally reinforced.
[0037]
As shown in FIGS. 2 to 4, a plurality of holes 30 are provided in each part of the peripheral wall of the reinforcement member 16 exposed from the outer panel portion 11 so as to attach attachment members (not shown) such as various trims and harnesses. By using this, it is possible to easily attach various kinds of outfitting members using the rigidity strength of the reinforcement member 16.
[0038]
Moreover, in this embodiment, the device which prevents extraction of the weather strip member 28 produced when reinforcing the front pillar part 3 using the reinforcement member 16 of a closed cross-section molded product is given.
[0039]
That is, by attaching the reinforcement member 16 of a closed cross-section molded product to the front pillar portion 3, the annular flange portion 29 (the portion indicated by the thick line in FIG. 1) to which the weather strip member 28 surrounding the entrance 2 is attached. 3 to 5, the region of only one flange portion 11 a as seen in the outer panel portion 11, as seen in the joint portion between the outer panel portion 11 and the side roof inner panel 17 as shown in FIG. 6. A region where the two flange portions 11a and 17a overlap each other, three flange portions 13a and 18a, which are seen at the joint portion of the outer panel portion 13a, the center pillar inner panel 18 and the reinforcement member 19 as shown in FIG. 19a and the overlapping area, when the common weather strip member 28 is used, the two flange portions 11a, 7a and the three flange portions 13a, 18a, 19a overlap, the thickness of the entire flange portion is increased, so that the fitting force of the weather strip 28 is ensured. However, in the portion having only one flange portion 11a, the flange portion Since the thickness of the entire portion is thin, it is difficult to secure the fitting force of the weather strip 28, and the weather strip portion is easily detached at the same portion.
[0040]
Therefore, in the region S where only one flange portion 11a is present as in the enlarged portion in FIG. 2, the plate surface of the flange portion is alternately made substantially U-shaped in the thickness direction, for example, in the thickness direction. Even if the common weather strip member 28 is used by forming the portion 30 which is bent to increase the dimension in the thickness direction, it is prevented from being detached.
[0041]
The present invention is not limited to the above-described embodiment, and various modifications may be made without departing from the spirit of the present invention. For example, in the embodiment, an example is given in which a reinforcement member formed of a closed cross-section molded product is combined with a center pillar portion that is a skeleton member of a vehicle body. However, the present invention is not limited thereto, and is used for an outer panel portion that forms a skeleton of another vehicle body. May be. Further, the reinforcement member is a molded product formed by the hydroforming, but a closed cross-sectional molded product formed by extrusion molding may be used.
[0042]
【The invention's effect】
As described above, according to the invention described in claim 1, when a reinforcement member formed of a closed cross-section molded product is combined with a substantially hat-shaped panel member in order to ensure high rigidity and strength. Even if there is a product variation, one side of the reinforcement member in the width direction is displaced along the vertical wall of the substantially hat-shaped panel member, and the other side is displaced along the flange of the panel member. , It will come to combine while absorbing the same variation.
[0043]
Therefore, the panel member and the reinforcement member can be aligned naturally without difficulty, so that not only the assembly failure can be eliminated, but also the reinforcement member and the panel member to be assembled can be fixed without causing unnecessary stress. can do.
[0044]
According to the invention described in claim 2, when the pillar structure that supports the window glass member is configured by the edge portion of the panel member, the edge portion that supports the window glass member at the box-shaped cross section formed by the wide portion of the reinforcement member. Therefore, the reinforcement member can be used to increase the support rigidity of the window glass member, and the vibration damping effect of the window glass member can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a vehicle body structure reinforced with a reinforcement member of a closed section molded product according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of the vehicle body structure.
FIG. 3 is a cross-sectional view of an outer panel portion taken along line AA in FIG.
4 is a cross-sectional view of an outer panel portion taken along line BB in FIG. 1. FIG.
FIG. 5 is a cross-sectional view of an outer panel portion taken along line CC in FIG.
6 is a cross-sectional view of an outer panel portion taken along line DD in FIG. 1. FIG.
7 is a cross-sectional view of a center pillar portion taken along line EE in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Car body 5 ... Center pillar part 8a ... Window glass member 10 ... Side outer panel 11 ... Outer panel part (panel member)
11a: Flange (edge)
11b ... vertical wall 16 ... reinforcement member 25 ... narrow part 26 ... wide part.

Claims

An elongated panel member that has a substantially hat-shaped cross-section and has a portion that bends in an arc shape in the longitudinal direction, and forms a skeleton of the vehicle;
An elongated reinforcement member formed by hydroform molding or extrusion molding having a bent portion following the bent portion of the panel member, which is continuously accommodated in the longitudinal direction of the panel member and reinforces the panel member. A vehicle body structure configured as
The reinforcement member is
The one side is narrower than the opening width of the panel member and the other side is wider than the one side. In the space, the side surface of one end in the width direction of the wide portion is overlapped with the flange portion extending laterally from one edge of the panel member,
Combining with the panel member by bringing the end face on the other end side in the width direction of the wide portion into contact with the vertical wall portion extending in the direction intersecting the extending direction of the flange portion from the other edge portion of the panel member. Body structure characterized by

The panel member and the reinforcement member cooperate to form a pillar portion of a vehicle body that supports a window glass member at an edge portion on one side of the panel member,
The reinforcement member is combined with the panel member such that the side surface on the narrow side overlaps the rear surface of the edge portion that receives the window glass member, and the edge portion is formed by a box-shaped cross-sectional portion that forms a wide portion of the reinforcement member. The vehicle body structure according to claim 1, wherein the structure is reinforced.