JP4350339B2

JP4350339B2 - Truck side guard

Info

Publication number: JP4350339B2
Application number: JP2002070641A
Authority: JP
Inventors: 隼男磯山; 幸広金子
Original assignee: Isuzu Motors Ltd
Current assignee: Isuzu Motors Ltd
Priority date: 2002-03-14
Filing date: 2002-03-14
Publication date: 2009-10-21
Anticipated expiration: 2022-03-14
Also published as: JP2003267170A

Description

【０００１】
【発明の属する技術分野】
本発明は、左折時や右折時の巻き込み事故を防止するためトラックの荷台の下方に取り付けられるトラック用サイドガードに関する。
【０００２】
【従来の技術】
図７に示すように、トラック１００の左右両側の下部には、左折時や右折時の巻き込み事故を防止するためのサイドガード１０１が設けられている（例えば、特開平８−２６０５０号公報参照）。サイドガード１０１は、荷台１０２の下方で車両前後方向に沿って延びている。サイドガード１０１の素材や形状は様々であるが、加工性や強度等の観点から、スチール、アルミ、ステンレスなどの金属単体からなる鋼板を略矩形閉断面形状に形成したものが広く使用されている。
【０００３】
【発明が解決しようとする課題】
サイドガードの素材としてスチール鋼板を使用した場合には、素材としての比重が高いため軽量化が難しく、また防錆のための塗装をしているが、積雪地域や海岸地方では塩害により毎年塗装を必要とする対象車が多くあった。アルミ鋼板を使用した場合には、未塗装での使用も可能ではあるが、短期間の使用でも表面に黒ずみが発生するため、外観上好ましいとは言い難かった。また、その形状から押出し成型品が主流であり、これらは抜き勾配の関係で底辺部は肉厚が増大していたので必ずしも期待している軽量化は望めなかった。ステンレス鋼板を使用した場合には、耐食性に優れているため未塗装で長期間使用しても錆や黒ずみ等が発生せず外観上好ましいが、素材としての比重が高いため軽量化が難しく、またコストも高かった。
【０００４】
このように、従来の素材を用いたサイドガードでは、防錆性及び外観性が良好で、且つ軽量化及びコストバランスに適するものがなかった。
【０００５】
また、サイドガードは、その位置が荷台の下方にあることから、荷台上へ上がる際の足場として使用されることも多い。ところが、サイドガードの本来的な目的は上述のように巻き込み事故の防止であり、係る目的に合わせてサイドガードの強度を設定すると、荷台上へ上がる際の足場として使用されたときにサイドガードの上面が変形してしまう恐れがあった。係る不都合は、鋼板の剛性を高めることによって回避することができるが、鋼板の剛性を高めるためには、その肉厚を増大させたり、補強部材を別途設けたりする必要があり、構造の重量増化や複雑化を招いてしまう。
【０００６】
本発明は、サイドガードの既存素材（特にスチール鋼板、アルミ鋼板、ステンレス鋼板）の欠点である上記の実情に鑑みてなされたものであって、外観が良好で、大幅な軽量化に適し、且つ荷台への足場として使用されても変形を生じ難いトラック用サイドガードの提供を目的とする。
【０００７】
【課題を解決するための手段】
上記目的を達成するため、本発明に係るトラック用サイドガードは、第１部材と第２部材とから構成され、荷台の下方に車両前後方向に沿って配置される。第１部材と第２部材とは、それぞれ、２枚のステンレス鋼板の間に樹脂を密着させて挟み込んだステンレス複合板を基本素材として使用し、縦板部と、縦板部の上下端から曲折されて相対向する上板部及び下板部と、上板部及び下板部によって区画される開口と、を有する。第１部材と第２部材とは、第１部材の開口が第２部材によって塞がれ、第２部材の開口が第１部材によって塞がれて、全体としてほぼ矩形状の閉断面が形成されるように、上板部同士及び下板部同士がそれぞれ重ねられた状態で相互に結合されている。縦板部と上板部との間の曲折部分は、ステンレス複合板をプレス加工することによって形成される。第２部材は、第１部材の内部側に配置され、第１部材の上板部と第２部材の上板部とは、面接触した状態で上下方向に重ねられる。第１部材の上板部は、その先端が少なくとも第２部材の曲折部分と重複する位置まで第１部材の縦板部から延出している。
【０００８】
このようなサイドガードでは、その表面がステンレス鋼板で構成されているため、耐食性に優れ、未塗装で長期間使用しても錆や黒ずみ等が発生せず、外観上好ましい。また、２枚のステンレス鋼板の間に樹脂を密着させて挟み込んだステンレス複合板を使用しているため、鋼板のみで形成した場合に比して、その重量が著しく低減される。
【０００９】
さらに、ステンレス鋼板は、素材として曲折後に元の状態へ復元しようとする力が強いという特性を有し、いわゆるスプリングバックを起こす傾向にある。これは成形型で押さえ込むことにより容易に形成できる。加えて、２枚のステンレス鋼板の間に樹脂を密着させて挟み込んだステンレス複合板では、樹脂の影響によってスプリングバックが一段と強まる。このスプリングバックにより、第１部材及び第２部材の上板部は、縦板部に対する曲折部分を中心として上方へ開移動しようとする力を潜在的に有する。このため、上板部は、上方から作用する荷重に対して高い剛性を発揮する。従って、サイドガードが荷台上への足場として使用された場合であっても、サイドガードの上面に押圧変形が生じ難い。
【００１０】
【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。
【００１１】
図１は本実施形態に係るトラック用サイドガードの分解斜図、図２は図１の要部拡大斜視図、図３（ａ）はステンレス複合板の拡大図、図３（ｂ）はスプリングバックの説明図である。なお、以下の説明において、前後方向は車両前後方向であり、左右方向は車両前方へ向いた状態での左右方向である。
【００１２】
図１に示すように、本実施形態に係るトラック用サイドガード１は、車両前後方向に沿って略平行に配置される上下２本のセンターガード２と、各センターガード２の前及び／又は後の端部に接合される複数本のコーナーガード３とを備え、荷台４の左右両側の下方にそれぞれ配置される。各センターガード２は、平面視略直線形状を有し、トラックの車体長に応じて適宜所望の長さに切断されて使用される。上下のセンターガード２同士は、図示外の連結部材によって連結されている。コーナーガード３は、平面視略Ｌ字形状を有し、その一端部にセンターガード２の端部からセンターガード２内に挿入されて締結固定される連結部３ａを有する。
【００１３】
コーナーガード３は、平面視形状が略Ｌ字状である点とその一端部に連結部３ａを有する点とを除き、センターガード２とその基本的な構成が共通する。このため、以下において、主にセンターガード２について説明し、コーナーガード３についての重複した説明を省略する。
【００１４】
図２に示すように、センターガード２は、共に略Ｃ字状断面を有する第１部材５と第２部材６とから構成されている。第１部材５と第２部材６は、共にステンレス複合板から曲折形成され、それぞれ、上下方向に沿った平板状の縦板部７，８と、縦板部７，８の上下端から曲折されて相対向する平板状の上板部９，１０及び下板部１１，１２とを有する。上板部９，１０の先端部１３，１４は下方へ曲折され、下板部１１，１２の先端部１５，１６は上方へ曲折されている。第１部材５は、上板部９の先端部１３と下板部１１の先端部１５とに区画された開口１７を有し、第２部材６は、上板部１０の先端部１４と下板部１２の先端部１６とに区画された開口１８を有する。本発明では、上記第１部材５及び第２部材６のように、上板部９，１０が下方へ曲折された先端部１３，１４を有し、下板部１１，１２が上方へ曲折された先端部１５，１６を有する態様を、略Ｃ字状断面を有する形状と称し、後述するように、上板部及び下板部が曲折された先端部を有さない態様（例えば、図５（ｄ）参照）を、略コ字状断面を有する形状と称して、両者を区別する。
【００１５】
第２部材６は、上板部１０の上面が第１部材５の上板部９の下面と面接触し、下板部１２の下面が第１部材５の下板部１１の上面と面接触し、上下の先端部１４，１６の外面が第１部材５の縦板部７の内面と面接触し、縦板部６の外面が第１部材５の上下の先端部１３，１５の内面と面接触するように、第１部材５の内部に挿入されている。このように、上板部９，１０同士及び下板部１１，１２同士がそれぞれ重ねられた状態で、第１部材５の開口１７が第２部材６の縦板部８によって塞がれ、第２部材６の開口１８が第１部材５の縦板部７によって塞がれて、全体としてほぼ矩形状の閉断面が形成されている。そして、第１部材５の上下の先端部１３，１５が第２部材６の縦板部８にリベット１９，２０によって固定され、第１部材５と第２部材６とが相互に結合されている。
【００１６】
第２部材６の縦板部８には、センターガード２の長手方向に沿って略等間隔に並ぶ複数の孔２１が形成されている。また、第１部材５及び第２部材６の下板部１１，１２には、両者を貫通する水抜き孔２２が適宜形成されている。
【００１７】
図１に示すように、センターガード２は、第１部材５の縦板部７が車幅方向外側に位置するように配置され、車体側に固定されて下方へ延びるステー２３に取り付けられる。ステー２３には、上下方向に沿って並ぶ複数の取付孔２４が形成されている。上下のセンターガード２は、ステー２３の取付孔２４の一つとセンターガード２の孔２１の一つとの位置を合わせ、両者にボルト（図示外）を挿通し、ボルトにナット（図示外）を螺合して締め付けることによって、ステー２３を介して車体側に固定される。孔２１は、車体前後方向においてセンターガード２が所望の位置に配置されるような位置のものが選択され、孔２１は、センターガード２所望の高さに配置されるような位置のものが選択される。これにより、サイドガード１を、車体に対して所望の位置に簡単に取り付けることができる。
【００１８】
本発明におけるステンレス複合板とは、図３（ａ）に示すように、２枚の薄肉のステンレス鋼板２５の間に樹脂２６を密着させて挟み込んだものを意味する。ステンレス複合板の製造は、２枚の平板状のステンレス鋼板２５の間に樹脂２６を流し込み、プレス整形し、樹脂２６を硬化させることによって行う。樹脂としては、例えばポリスチレン樹脂やその独立発泡体が使用される。ステンレス鋼板２５の内面と樹脂２６とは完全に密着した状態であるため、水等の液体の両者間への浸入は確実に防止されている。そして、平板状のステンレス複合板を所望の形状に打ち抜いてプレス加工を施すことにより、第１部材５及び第２部材６（図２に示す）が形成される。
【００１９】
本実施形態のステンレス複合板では、全体の厚さＤが１．５ｍｍ以上３．０ｍｍ以下で、且つステンレス鋼板２５の厚さが０．１ｍｍ以上０．１５ｍｍ以下に設定されている。例えば、全体の厚さＤを２．０ｍｍとしたステンレス複合板の比重をステンレス鋼板単体の比重と比較すると、ステンレス複合板の比重はステンレス鋼板の比重の約１／７程度であり、極めて軽量となる。また、同条件でのアルミ鋼板との比較では約１／３程度である。
【００２０】
このようなサイドガード１によれば、その表面がステンレス鋼板で構成されているため、耐食性に優れ、未塗装で長期間使用しても錆や黒ずみ等が発生せず、外観上好ましい。
【００２１】
２枚のステンレス鋼板２５の間に樹脂を密着させて挟み込んだステンレス複合板を使用しているため、鋼板のみで形成した場合に比して、その重量が著しく低減される。従って、サイドガード１の車体側への取付作業性が向上し、取付作業に要する作業者数を削減することができる。
【００２２】
ステンレス鋼板２５は、素材として曲折後に元の状態へ復元しようとする力が強いという特性を有し、いわゆるスプリングバックを起こす傾向にある。加えて、２枚のステンレス鋼板２５の間に樹脂２６を密着させて挟み込んだステンレス複合板では、樹脂２６の影響によってスプリングバックが一段と強まる。このスプリングバックにより、図３（ｂ）に二点鎖線で示すように、第１部材５及び第２部材６の上板部９，１０は、縦板部７，８に対する曲折部分（上板部９，１０と縦板部７，８との間の角部）を中心として上方へ開移動しようとする力を潜在的に有し、係る力に抗して先端部１３が縦板部８にリベット１９によって固定されている。このため、上板部９，１０は、上方から作用する荷重に対して高い剛性を発揮する。従って、サイドガード１が荷台４へ上る際の足場として使用された場合であっても、サイドガード１の上面に押圧変形が生じ難い。
【００２３】
ステンレス複合板は、ステンレス鋼板２５の間に挟み込まれた樹脂２６を有し、この樹脂２６が衝撃を吸収して緩和する機能を果たすため、金属単体の鋼板によってサイドガードを形成した場合に比べて、巻き込み対象への衝撃が緩和される。
【００２４】
センターガード２は、第１部材５の縦板部７が車幅方向外側に位置するように配置されている。すなわち、リベット１９は、車幅方向内側に隠されるので、外観上の見栄えが良く、且つ足場として使用される際にもリベット１９が邪魔にならない。
【００２５】
センターガード２の孔２１とステー２３の取付孔２４との組合せを選択することによって、サイドガード１を、車体に対して所望の位置に簡単に取り付けることができる。
【００２６】
サイドガード１をセンターガード２とコーナーガード３とに分割して構成したので、部品単体の形状が簡素化され、且つ部品の共通化も可能となる。
【００２７】
ステンレス複合板をプレス加工することによって第１部材５及び第２部材６を形成することができるので、コスト面でも有利である。
【００２８】
次に、本実施形態の変形例を説明する。
【００２９】
図４は、複数の取付孔２４を有する図１のステー２３に代えて、ステー２７と略Ω形状を有する取付部材２８とによってサイドガード１を車体側へ取り付ける例である。上述のように、ステンレス複合板からなるサイドガード１は極めて軽量であるため、車体側への取付強度を低減させることができる。従って、図４に示すように、センターガード２の外周面（第１部材５の上板部９、縦板部７、及び下板部１１の外面）に沿って曲折された取付部材２８を、車体側に固定されたステー２７の外面にボルト及びナット（図示外）によって締結固定するという、簡素な固定構造であっても、サイドガード１を確実に支持することができる。そして、センターガード２を直接ステー２７に固定せずに取付部材２８を介して取り付けることによって、センターガード２（サイドガード１）の位置を自由に設定することができる。
【００３０】
図５（ａ）〜（ｄ）及び図６は、第１部材５，３０，３１及び第２部材６，２９，３２の結合位置や形状等を変更した変形例であり、第１部材５，３０，３１及び第２部材６，２９，３２は、図３（ａ）のようなステンレス複合板から曲折形成されている。
【００３１】
図５（ａ）は、第１部材５の先端部１３，１５と第２部材６の縦板部８とを結合せず、第１部材５及び第２部材６の上板部９，１０同士と下板部１１，１２同士とをそれぞれリベット１９，２０によって結合したものである。
【００３２】
図５（ｂ）は、略Ｃ字状断面を有する第１部材５と略コ字状断面を有する第２部材２９とを組み合わせたものである。すなわち、第２部材２９は、上下方向に沿った平板状の縦板部３３と、縦板部３３の上下端から曲折されて相対向する平板状の上板部３４及び下板部３５と、上板部３４の先端と下板部３５の先端とに区画された開口３６を有する。但し、図５（ａ）のような略Ｃ字状断面を有する第２部材６とは異なり、この第２部材２９の上板部３４及び下板部３５は、図５（ａ）のような曲折された先端部１４，１６を有さない。
【００３３】
第２部材２９は、上板部３４の上面が第１部材５の上板部９の下面と面接触し、下板部３５の下面が第１部材５の下板部１１の上面と面接触し、縦板部３３の外面が第１部材５の上下の先端部１３，１５の内面と面接触するように、第１部材５の内部に挿入されている。そして、第１部材５の上下の先端部１３，１５が第２部材２９の縦板部３３にリベット１９，２０によって結合されている。
【００３４】
図５（ｃ）は、略Ｃ字状断面を有する第１部材５と略コ字状断面を有する第２部材２９とを組み合わせたものである点で図５（ｂ）と同様であるが、第２部材２９の内部に第１部材５が挿入されている点で相違する。
【００３５】
図５（ｄ）は、共に略コ字状断面を有する第１部材３０と第２部材２９とを組み合わせたものである。第１部材３０は、上下方向に沿った平板状の縦板部３７と、縦板部３７の上下端から曲折されて相対向する平板状の上板部３８及び下板部３９と、上板部３８の先端と下板部３９の先端とに区画された開口４０と、を有する。但し、図５（ａ）のような略Ｃ字状断面を有する第１部材５とは異なり、この第１部材３０の上板部３８及び下板部３９は、図５（ａ）のような曲折された先端部１３，１５を有さない。
【００３６】
第２部材２９は、上板部３４の上面が第１部材３０の上板部３８の下面と面接触し、下板部３５の下面が第１部材３０の下板部３９の上面と面接触するように、第１部材３０の内部に挿入されている。そして、第１部材３０及び第２部材２９の上板部３８，３４同士と下板部３９，３５同士とがそれぞれリベット１９，２０によって結合されている。
【００３７】
図６は、共に略コ字状断面を有する第１部材３１と第２部材３２とを組み合わせたものであり、この第１部材３１と第２部材３２とは略等しい寸法形状を有する。第１部材３１と第２部材３２は、それぞれ、上下方向に沿った平板状の縦板部４１，４２と、縦板部４１，４２の上下端から曲折されて相対向する平板状の上板部４３，４４及び下板部４５，４６と、上板部４３，４４の先端と下板部４５，４６の先端とに区画された開口４７，４８と、を有する。但し、図５（ａ）のような略Ｃ字状断面を有する第１部材５や第２部材６とは異なり、この第１部材３１及び第２部材３２の上板部４３，４４及び下板部４５，４６は、図５（ａ）のような曲折された先端部１３，１４，１５，１６を有さない。
【００３８】
第１部材３１と第２部材３２とは、第２部材３２の上板部４４の上面が第１部材３１の上板部４３の下面と面接触し、第１部材３１の下板部４５の下面が第２部材３２の下板部４６の上面と面接触するように組み合わされている。
【００３９】
なお、図５（ａ）〜（ｄ）及び図６において、第１部材５，３０，３１の開口１７，４０，４７は第２部材６，２９，３２によって塞がれ、第２部材６，２９，３２の開口１８，３６，４８は第１部材５，３０，３１によって塞がれて、第１部材５，３０，３１と第２部材６，２９，３２とは全体としてほぼ矩形状の閉断面を形成している。
【００４０】
図５（ａ）〜（ｄ）及び図６に示すような構造においても、図３（ａ）に示すようなステンレス複合板を用いることによって、上記実施形態と同様の作用効果を得ることができる。
【００４１】
また、特に図６に示す構造では、第１部材３１と第２部材３２とを略等しい寸法形状とすることができるので、第１部材３１と第２部材３２との間で部品の共通化を図ることができる。
【００４２】
なお、上記実施形態では、第１部材５，３０，３１と第２部材６，２９，３２とをリベット１９，２０によって結合したが、本発明はこれに限定されるものではなく、例えばボルト及びナットによる締結など他の方法によって結合しても良い。
【００４３】
【発明の効果】
以上説明したように、本発明によれば、防錆性及び外観が良好で、軽量化及びコストバランスに適し、且つ荷台への足場として使用されても変形を生じ難いトラック用サイドガードを得ることができる。また、その基本素材に樹脂が入っているために弾性を有し、スチールやアルミやステンレスなどの金属単体の鋼板に比べて巻き込み（接触）対象への衝撃が緩和される。
【図面の簡単な説明】
【図１】本実施形態に係るトラック用サイドガードの分解斜図である。
【図２】図１の要部拡大斜視図である。
【図３】（ａ）はステンレス複合板の拡大図、（ｂ）はスプリングバックの説明図である。
【図４】サイドガードの車体側への取付形態の変形例を示す斜視図である。
【図５】（ａ）〜（ｄ）はそれぞれ第１部材及び第２部材の結合位置及び形状に関する変形例の正面図である。
【図６】第１部材及び第２部材の結合位置及び形状に関する他の変形例の正面図である。
【図７】従来のサイドガードを示す斜視図である。
【符号の説明】
１サイドガード
２センターガード
３コーナーガード
４荷台
５第１部材
６第２部材
７縦板部
８縦板部
９上板部
１０上板部
１１下板部
１２下板部
１３先端部
１４先端部
１５先端部
１６先端部
１７開口
１８開口
２５ステンレス鋼板
２６樹脂
２９第２部材
３０第１部材
３１第１部材
３２第２部材
３３縦板部
３４上板部
３５下板部
３６開口
３７縦板部
３８上板部
３９下板部
４０開口
４１縦板部
４２縦板部
４３上板部
４４上板部
４５下板部
４６下板部
４７開口
４８開口[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a truck side guard that is attached to the lower side of a truck bed in order to prevent an accident involving a left turn or a right turn.
[0002]
[Prior art]
As shown in FIG. 7, side guards 101 are provided at the lower portions of the left and right sides of the truck 100 to prevent an accident involving a left turn or a right turn (see, for example, JP-A-8-26050). . The side guard 101 extends along the vehicle front-rear direction below the loading platform 102. The material and shape of the side guard 101 are various, but from the viewpoint of workability, strength, etc., a steel plate made of a single metal such as steel, aluminum, and stainless steel having a substantially rectangular closed cross-sectional shape is widely used. .
[0003]
[Problems to be solved by the invention]
When steel plate is used as the material for the side guard, it is difficult to reduce the weight because of its high specific gravity as the material, and it is painted for rust prevention, but in snowy areas and coastal areas, it is painted every year due to salt damage. There were many required vehicles. When an aluminum steel plate is used, it can be used unpainted, but darkening occurs on the surface even when used for a short period of time. In addition, extruded products are the mainstream because of their shape, and the thickness of the bottom portion has increased due to the draft, so the expected weight reduction could not be expected. When stainless steel plate is used, it is excellent in corrosion resistance, and it is preferable in appearance because it does not generate rust and darkening even if it is used for a long time without being painted, but it is difficult to reduce the weight because of its high specific gravity as a material, Cost was also high.
[0004]
Thus, in the side guard using the conventional raw material, there was nothing which was favorable for rust prevention and appearance, and suitable for weight reduction and cost balance.
[0005]
Further, since the position of the side guard is below the loading platform, the side guard is often used as a scaffold when ascending to the loading platform. However, the primary purpose of the side guard is to prevent entanglement accidents as described above. If the strength of the side guard is set in accordance with the purpose, the side guard can be used when it is used as a scaffold when going up on the loading platform. There was a risk that the upper surface would be deformed. Such inconvenience can be avoided by increasing the rigidity of the steel sheet, but in order to increase the rigidity of the steel sheet, it is necessary to increase the thickness of the steel sheet or to provide a reinforcing member separately, which increases the weight of the structure. Will lead to complications and complications.
[0006]
The present invention has been made in view of the above-mentioned situation, which is a disadvantage of existing materials for side guards (especially steel steel plates, aluminum steel plates, stainless steel plates), has a good appearance, is suitable for significant weight reduction, and The purpose of the present invention is to provide a truck side guard that is less likely to be deformed even when used as a scaffold for a cargo bed.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a truck side guard according to the present invention is composed of a first member and a second member, and is disposed along the vehicle front-rear direction below the loading platform. The first member and the second member are each made of a stainless steel composite plate with a resin sandwiched between two stainless steel plates as a basic material, bent from the vertical plate portion and the upper and lower ends of the vertical plate portion. And an upper plate portion and a lower plate portion facing each other, and an opening defined by the upper plate portion and the lower plate portion. In the first member and the second member, the opening of the first member is closed by the second member, the opening of the second member is closed by the first member, and a substantially rectangular closed section is formed as a whole. In this way, the upper plate portions and the lower plate portions are connected to each other in a state where they are overlapped with each other. A bent portion between the vertical plate portion and the upper plate portion is formed by pressing a stainless steel composite plate. The second member is disposed on the inner side of the first member, and the upper plate portion of the first member and the upper plate portion of the second member are stacked in the vertical direction in a state of surface contact. The upper plate portion of the first member extends from the vertical plate portion of the first member to a position where the tip overlaps at least the bent portion of the second member.
[0008]
Since such a side guard is made of a stainless steel plate, its surface is excellent in corrosion resistance, and it is preferable in appearance because it does not generate rust or darkening even when used for a long time without being coated. In addition, since a stainless steel composite plate in which a resin is sandwiched between two stainless steel plates is used, the weight is remarkably reduced as compared with the case where the plate is formed of only steel plates.
[0009]
Furthermore, a stainless steel plate has a characteristic that a force to restore the original state after bending as a material is strong, and tends to cause a so-called springback. This can be easily formed by pressing with a mold. In addition, in a stainless composite plate in which a resin is sandwiched between two stainless steel plates, the springback is further strengthened by the influence of the resin. Due to this springback, the upper plate portion of the first member and the second member potentially has a force to open upward about the bent portion with respect to the vertical plate portion. For this reason, an upper board part exhibits high rigidity with respect to the load which acts from upper direction. Therefore, even when the side guard is used as a scaffold on the loading platform, it is difficult for pressure deformation to occur on the upper surface of the side guard.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0011]
1 is an exploded perspective view of a truck side guard according to the present embodiment, FIG. 2 is an enlarged perspective view of a main part of FIG. 1, FIG. 3A is an enlarged view of a stainless steel composite plate, and FIG. It is explanatory drawing of. In the following description, the front-rear direction is the vehicle front-rear direction, and the left-right direction is the left-right direction with the vehicle facing forward.
[0012]
As shown in FIG. 1, a truck side guard 1 according to this embodiment includes two upper and lower center guards 2 arranged substantially in parallel along the vehicle front-rear direction, and front and / or rear of each center guard 2. And a plurality of corner guards 3 joined to the end portions of the cargo bed 4 and disposed below the left and right sides of the loading platform 4, respectively. Each center guard 2 has a substantially linear shape in plan view, and is used by being cut to a desired length as appropriate according to the vehicle body length of the truck. The upper and lower center guards 2 are connected to each other by a connecting member (not shown). The corner guard 3 has a substantially L shape in a plan view, and has a connecting portion 3a that is inserted into the center guard 2 from the end of the center guard 2 and fastened and fixed at one end thereof.
[0013]
The corner guard 3 has the same basic configuration as the center guard 2 except that the shape in plan view is substantially L-shaped and a point having a connecting portion 3a at one end thereof. For this reason, below, the center guard 2 is mainly demonstrated and the overlapping description about the corner guard 3 is abbreviate | omitted.
[0014]
As shown in FIG. 2, the center guard 2 includes a first member 5 and a second member 6 each having a substantially C-shaped cross section. The first member 5 and the second member 6 are both bent from a stainless steel composite plate and bent from the flat plate portions 7 and 8 and the upper and lower ends of the vertical plate portions 7 and 8 along the vertical direction, respectively. The upper and lower plate portions 9 and 10 and the lower plate portions 11 and 12 are opposed to each other. The tip portions 13 and 14 of the upper plate portions 9 and 10 are bent downward, and the tip portions 15 and 16 of the lower plate portions 11 and 12 are bent upward. The first member 5 has an opening 17 partitioned into a front end portion 13 of the upper plate portion 9 and a front end portion 15 of the lower plate portion 11, and the second member 6 has a lower end portion and a lower end portion 14 of the upper plate portion 10. An opening 18 is defined in the tip portion 16 of the plate portion 12. In the present invention, like the first member 5 and the second member 6, the upper plate portions 9, 10 have the tip portions 13, 14 bent downward, and the lower plate portions 11, 12 are bent upward. The aspect having the front end portions 15 and 16 is referred to as a shape having a substantially C-shaped cross section, and as will be described later, the upper plate portion and the lower plate portion do not have the bent front end portions (for example, FIG. 5). (See (d)) is referred to as a shape having a substantially U-shaped cross section, and the two are distinguished.
[0015]
In the second member 6, the upper surface of the upper plate portion 10 is in surface contact with the lower surface of the upper plate portion 9 of the first member 5, and the lower surface of the lower plate portion 12 is in surface contact with the upper surface of the lower plate portion 11 of the first member 5. The outer surfaces of the upper and lower tip portions 14 and 16 are in surface contact with the inner surface of the vertical plate portion 7 of the first member 5, and the outer surface of the vertical plate portion 6 is in contact with the inner surfaces of the upper and lower tip portions 13 and 15 of the first member 5. It is inserted into the first member 5 so as to come into surface contact. Thus, in a state where the upper plate portions 9 and 10 and the lower plate portions 11 and 12 are overlapped, the opening 17 of the first member 5 is closed by the vertical plate portion 8 of the second member 6, and The opening 18 of the two members 6 is closed by the vertical plate portion 7 of the first member 5, thereby forming a substantially rectangular closed section as a whole. The upper and lower tip portions 13 and 15 of the first member 5 are fixed to the vertical plate portion 8 of the second member 6 by rivets 19 and 20, and the first member 5 and the second member 6 are coupled to each other. .
[0016]
A plurality of holes 21 are formed in the vertical plate portion 8 of the second member 6 so as to be arranged at substantially equal intervals along the longitudinal direction of the center guard 2. Further, the lower plate portions 11 and 12 of the first member 5 and the second member 6 are appropriately formed with drain holes 22 penetrating both.
[0017]
As shown in FIG. 1, the center guard 2 is disposed so that the vertical plate portion 7 of the first member 5 is positioned on the outer side in the vehicle width direction, and is attached to a stay 23 that is fixed to the vehicle body side and extends downward. The stay 23 is formed with a plurality of mounting holes 24 arranged in the vertical direction. The upper and lower center guards 2 are aligned with one of the mounting holes 24 of the stay 23 and one of the holes 21 of the center guard 2, and a bolt (not shown) is inserted through them, and a nut (not shown) is screwed into the bolt. By fastening together, it is fixed to the vehicle body side via the stay 23. The hole 21 is selected so that the center guard 2 is disposed at a desired position in the longitudinal direction of the vehicle body, and the hole 21 is selected so that the center guard 2 is disposed at a desired height. Is done. Thereby, the side guard 1 can be easily attached to a desired position with respect to the vehicle body.
[0018]
As shown in FIG. 3A, the stainless steel composite plate in the present invention means a product in which a resin 26 is closely attached between two thin stainless steel plates 25. The stainless steel composite plate is manufactured by pouring a resin 26 between two flat stainless steel plates 25, press-molding, and curing the resin 26. As the resin, for example, a polystyrene resin or its independent foam is used. Since the inner surface of the stainless steel plate 25 and the resin 26 are in close contact with each other, the intrusion of liquid such as water between the two is reliably prevented. And the 1st member 5 and the 2nd member 6 (shown in FIG. 2) are formed by stamping a flat stainless steel composite board into a desired shape and performing press work.
[0019]
In the stainless steel composite plate of this embodiment, the overall thickness D is set to 1.5 mm to 3.0 mm, and the thickness of the stainless steel plate 25 is set to 0.1 mm to 0.15 mm. For example, when the specific gravity of a stainless steel composite plate with an overall thickness D of 2.0 mm is compared with the specific gravity of a single stainless steel plate, the specific gravity of the stainless steel composite plate is about 1/7 of the specific gravity of the stainless steel plate and is extremely lightweight. Become. Moreover, it is about 1/3 compared with the aluminum steel plate on the same conditions.
[0020]
According to such a side guard 1, since the surface is composed of a stainless steel plate, it is excellent in corrosion resistance, and rust and darkening do not occur even when used for a long period of time without being painted, which is preferable in terms of appearance.
[0021]
Since a stainless steel composite plate in which a resin is sandwiched and sandwiched between two stainless steel plates 25 is used, the weight is remarkably reduced as compared with the case of forming with only steel plates. Therefore, the workability of attaching the side guard 1 to the vehicle body is improved, and the number of workers required for the work can be reduced.
[0022]
The stainless steel plate 25 has a characteristic that the force to restore the original state after bending as a material is strong, and tends to cause a so-called spring back. In addition, in the stainless composite plate in which the resin 26 is sandwiched between the two stainless steel plates 25, the springback is further strengthened by the influence of the resin 26. Due to this spring back, the upper plate portions 9 and 10 of the first member 5 and the second member 6 are bent portions (upper plate portions) with respect to the vertical plate portions 7 and 8, as shown by a two-dot chain line in FIG. 9 and 10 and the vertical plate portions 7 and 8, which has a potential to open upward about the center), and the tip 13 is against the vertical plate portion 8 against such force. It is fixed by a rivet 19. For this reason, the upper plate portions 9 and 10 exhibit high rigidity against a load acting from above. Therefore, even when the side guard 1 is used as a scaffold when ascending to the loading platform 4, it is difficult for pressure deformation to occur on the upper surface of the side guard 1.
[0023]
The stainless steel composite plate has a resin 26 sandwiched between stainless steel plates 25, and the resin 26 functions to absorb and relieve shock, so that the side guard is formed by a single metal plate. The impact on the entrainment target is alleviated.
[0024]
The center guard 2 is disposed so that the vertical plate portion 7 of the first member 5 is positioned on the outer side in the vehicle width direction. That is, since the rivet 19 is concealed on the inner side in the vehicle width direction, the appearance is good and the rivet 19 does not get in the way when used as a scaffold.
[0025]
By selecting a combination of the hole 21 of the center guard 2 and the mounting hole 24 of the stay 23, the side guard 1 can be easily attached to a desired position with respect to the vehicle body.
[0026]
Since the side guard 1 is divided into the center guard 2 and the corner guard 3, the shape of a single part is simplified and the parts can be shared.
[0027]
The first member 5 and the second member 6 can be formed by pressing a stainless steel composite plate, which is advantageous in terms of cost.
[0028]
Next, a modification of this embodiment will be described.
[0029]
FIG. 4 is an example in which the side guard 1 is attached to the vehicle body side by a stay 27 and an attachment member 28 having a substantially Ω shape instead of the stay 23 of FIG. 1 having a plurality of attachment holes 24. As described above, since the side guard 1 made of a stainless steel composite plate is extremely lightweight, the mounting strength on the vehicle body side can be reduced. Therefore, as shown in FIG. 4, the mounting member 28 bent along the outer peripheral surface of the center guard 2 (the outer surface of the upper plate portion 9, the vertical plate portion 7, and the lower plate portion 11 of the first member 5), Even with a simple fixing structure in which the bolts and nuts (not shown) are fastened and fixed to the outer surface of the stay 27 fixed to the vehicle body side, the side guard 1 can be reliably supported. The center guard 2 (side guard 1) can be freely set by attaching the center guard 2 to the stay 27 without being directly fixed to the stay 27 via the attachment member 28.
[0030]
FIGS. 5A to 5D and FIG. 6 are modified examples in which the coupling positions and shapes of the first members 5, 30, 31 and the second members 6, 29, 32 are changed. 30 and 31 and the second members 6, 29 and 32 are bent from a stainless steel composite plate as shown in FIG.
[0031]
FIG. 5A shows that the top end portions 13 and 15 of the first member 5 and the vertical plate portion 8 of the second member 6 are not coupled, and the upper plate portions 9 and 10 of the first member 5 and the second member 6 are connected to each other. And the lower plate portions 11 and 12 are connected to each other by rivets 19 and 20, respectively.
[0032]
FIG. 5B is a combination of the first member 5 having a substantially C-shaped cross section and the second member 29 having a substantially U-shaped cross section. That is, the second member 29 includes a plate-like vertical plate portion 33 along the vertical direction, a flat plate-like upper plate portion 34 and a lower plate portion 35 that are bent from the upper and lower ends of the vertical plate portion 33 and face each other. An opening 36 is defined at the tip of the upper plate portion 34 and the tip of the lower plate portion 35. However, unlike the second member 6 having a substantially C-shaped cross section as shown in FIG. 5A, the upper plate portion 34 and the lower plate portion 35 of the second member 29 are as shown in FIG. There are no bent tips 14 and 16.
[0033]
In the second member 29, the upper surface of the upper plate portion 34 is in surface contact with the lower surface of the upper plate portion 9 of the first member 5, and the lower surface of the lower plate portion 35 is in surface contact with the upper surface of the lower plate portion 11 of the first member 5. In addition, the vertical plate portion 33 is inserted into the first member 5 so that the outer surface of the vertical plate portion 33 comes into surface contact with the inner surfaces of the upper and lower tip portions 13 and 15 of the first member 5. The upper and lower tip portions 13 and 15 of the first member 5 are coupled to the vertical plate portion 33 of the second member 29 by rivets 19 and 20.
[0034]
FIG. 5C is similar to FIG. 5B in that the first member 5 having a substantially C-shaped cross section and the second member 29 having a substantially U-shaped cross section are combined. The difference is that the first member 5 is inserted into the second member 29.
[0035]
FIG. 5 (d) is a combination of the first member 30 and the second member 29 both having a substantially U-shaped cross section. The first member 30 includes a flat plate-like vertical plate portion 37 along the vertical direction, flat plate-like upper and lower plate portions 38 and 39 that are bent from the upper and lower ends of the vertical plate portion 37 and face each other, and an upper plate. And an opening 40 partitioned into a tip of the portion 38 and a tip of the lower plate portion 39. However, unlike the first member 5 having a substantially C-shaped cross section as shown in FIG. 5A, the upper plate portion 38 and the lower plate portion 39 of the first member 30 are formed as shown in FIG. It does not have the bent tip portions 13 and 15.
[0036]
In the second member 29, the upper surface of the upper plate portion 34 is in surface contact with the lower surface of the upper plate portion 38 of the first member 30, and the lower surface of the lower plate portion 35 is in surface contact with the upper surface of the lower plate portion 39 of the first member 30. As shown, the first member 30 is inserted into the interior. The upper plate portions 38 and 34 of the first member 30 and the second member 29 are connected to the lower plate portions 39 and 35 by rivets 19 and 20, respectively.
[0037]
FIG. 6 shows a combination of a first member 31 and a second member 32 that both have a substantially U-shaped cross section, and the first member 31 and the second member 32 have substantially the same size and shape. The first member 31 and the second member 32 are respectively flat plate portions 41 and 42 along the vertical direction, and flat plate upper plates that are bent from the upper and lower ends of the vertical plate portions 41 and 42 and face each other. Portions 43 and 44 and lower plate portions 45 and 46, and openings 47 and 48 that are partitioned into tips of the upper plate portions 43 and 44 and tips of the lower plate portions 45 and 46. However, unlike the first member 5 and the second member 6 having a substantially C-shaped cross section as shown in FIG. 5A, the upper plate portions 43 and 44 and the lower plate of the first member 31 and the second member 32 are used. The parts 45 and 46 do not have the bent front end parts 13, 14, 15 and 16 as shown in FIG.
[0038]
In the first member 31 and the second member 32, the upper surface of the upper plate portion 44 of the second member 32 is in surface contact with the lower surface of the upper plate portion 43 of the first member 31, and the lower plate portion 45 of the first member 31 The lower surface is combined so as to be in surface contact with the upper surface of the lower plate portion 46 of the second member 32.
[0039]
5A to 5D and FIG. 6, the openings 17, 40, 47 of the first members 5, 30, 31 are blocked by the second members 6, 29, 32. The openings 18, 36, 48 of 29, 32 are closed by the first members 5, 30, 31, and the first members 5, 30, 31 and the second members 6, 29, 32 are generally rectangular in shape. A closed cross section is formed.
[0040]
Even in the structure as shown in FIGS. 5A to 5D and FIG. 6, the same effect as that of the above embodiment can be obtained by using the stainless steel composite plate as shown in FIG. .
[0041]
In particular, in the structure shown in FIG. 6, the first member 31 and the second member 32 can have substantially the same size and shape, so that the parts can be shared between the first member 31 and the second member 32. Can be planned.
[0042]
In the above embodiment, the first members 5, 30, 31 and the second members 6, 29, 32 are coupled by the rivets 19, 20, but the present invention is not limited to this, for example, bolts and You may couple | bond by other methods, such as fastening with a nut.
[0043]
【The invention's effect】
As described above, according to the present invention, it is possible to obtain a side guard for a truck that has good rust prevention and appearance, is suitable for weight reduction and cost balance, and is hardly deformed even when used as a scaffolding for a cargo bed. Can do. In addition, since the resin is contained in the basic material, it has elasticity, and the impact on the entrainment (contact) object is reduced as compared with a steel plate made of a single metal such as steel, aluminum or stainless steel.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a truck side guard according to the present embodiment.
FIG. 2 is an enlarged perspective view of a main part of FIG.
3A is an enlarged view of a stainless steel composite plate, and FIG. 3B is an explanatory view of a spring back.
FIG. 4 is a perspective view showing a modified example of a mounting form of the side guard to the vehicle body side.
FIGS. 5A to 5D are front views of modified examples related to the coupling position and shape of the first member and the second member, respectively.
FIG. 6 is a front view of another modified example regarding the coupling position and shape of the first member and the second member.
FIG. 7 is a perspective view showing a conventional side guard.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Side guard 2 Center guard 3 Corner guard 4 Loading platform 5 1st member 6 2nd member 7 Vertical plate part 8 Vertical plate part 9 Upper plate part 10 Upper plate part 11 Lower plate part 12 Lower plate part 13 End part 14 End part 15 Front end 16 Front end 17 Opening 18 Opening 25 Stainless steel plate 26 Resin 29 Second member 30 First member 31 First member 32 Second member 33 Vertical plate 34 Upper plate 35 Lower plate 36 Opening 37 Vertical plate 38 Upper Plate portion 39 Lower plate portion 40 Opening 41 Vertical plate portion 42 Vertical plate portion 43 Upper plate portion 44 Upper plate portion 45 Lower plate portion 46 Lower plate portion 47 Opening 48 Opening

Claims

A truck side guard disposed below the loading platform,
It consists of a stainless steel composite plate sandwiched between two stainless steel plates with a resin closely attached, and includes a first member and a second member that are coupled to each other,
The first member and the second member are divided by a vertical plate portion, an upper plate portion and a lower plate portion that are bent from the upper and lower ends of the vertical plate portion and face each other, and the upper plate portion and the lower plate portion. Each having an opening,
The top of the first member is closed by the second member, and the opening of the second member is closed by the first member to form a substantially rectangular closed section as a whole. The plate parts and the lower plate parts are overlapped,
The bent portion between the vertical plate portion and the upper plate portion is formed by pressing the stainless steel composite plate,
The second member is disposed on the inner side of the first member,
The upper plate portion of the first member and the upper plate portion of the second member are stacked in the vertical direction in a surface contact state ,
The upper plate portion of the first member extends from the vertical plate portion of the first member to a position where the tip of the upper plate portion overlaps at least the bent portion of the second member . Side guard.

The truck side guard according to claim 1,
At least one of the first member and the second member has a substantially C-shaped cross section.

The truck side guard according to claim 1,
At least one of the first member and the second member has a substantially U-shaped cross section.