JP2006281955A - Floor panel for vehicle - Google Patents

Floor panel for vehicle Download PDF

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JP2006281955A
JP2006281955A JP2005103976A JP2005103976A JP2006281955A JP 2006281955 A JP2006281955 A JP 2006281955A JP 2005103976 A JP2005103976 A JP 2005103976A JP 2005103976 A JP2005103976 A JP 2005103976A JP 2006281955 A JP2006281955 A JP 2006281955A
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floor panel
stiffening member
vehicle
spot
floor
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JP2005103976A
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JP4647367B2 (en
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Yasushi Takahashi
泰 高橋
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Subaru Corp
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Fuji Heavy Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To reduce vibration noise and to enhance comfortability by stably and certainly raising a resonate vibration point while maintaining cost reduction and light weight without particularly thickening plate thickness and changing a shape. <P>SOLUTION: An auxiliary rigid member 15 is provided on a lower part between a seat cross member front 7l and a seat cross member rear 8l of a floor panel body 1a by spot-welding. A central part of the auxiliary rigid member 15 is formed to a projection shape in a vehicle width direction, the projection part 15a is spot-welded to a flat surface part 11 formed between a swelled part 10 and a swelled part 10 and both front and rear ends 15b, 15b of the projection part 15a are spot-welded to bottom part 10bo, 10bo of the swelled parts 10, 10 at respective sides. Further, the projection part 15a and both ends 15b, 15b of the auxiliary rigid member 15 are extended to a side sill inner panel 4l. An end 15c is bent downward and is spot-welded to the side sill inner panel 4l at a plurality of points. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、複数の鍋底形状をした膨出部が下方に向けて形成された車両のフロアパネルに関する。   The present invention relates to a vehicle floor panel in which a plurality of pan-shaped bulges are formed facing downward.

従来より、車両のフロアパネルにおいては、エンジンの振動騒音や排気音、路面からのロードノイズ等の周波数が、フロアパネル固有の共振周波数と一致すると、上述の振動騒音が一層倍増されて車室内に伝達されるため、乗員に不快感を与えることが知られている。このため、車両のフロアパネルでは、共振周波数を上述の振動騒音の周波数（例えば５００Ｈｚ以上の周波数）より高くなるようにするために、様々な技術が提案されている。   Conventionally, in a vehicle floor panel, if the frequencies of engine vibration noise, exhaust noise, road noise from the road surface, and the like coincide with the resonance frequency inherent to the floor panel, the above-described vibration noise is further doubled into the vehicle interior. It is known to cause discomfort to the passenger because it is transmitted. For this reason, in the vehicle floor panel, various techniques have been proposed in order to make the resonance frequency higher than the vibration noise frequency (for example, a frequency of 500 Hz or more).

例えば、特開２００２−１６０６７４号広報では、下方へ凸状に湾曲する大きな曲面部と、該曲面部の周囲に一体に形成され、車体の骨格部材に結合される平坦部とを備える車両フロアパネル構造であって、曲面部と平坦部とを段差を設けて連続させる技術が開示されている。
特開２００２−１６０６７４号広報 For example, in Japanese Laid-Open Patent Publication No. 2002-160674, a vehicle floor panel including a large curved portion that curves downward in a convex shape, and a flat portion that is integrally formed around the curved portion and is coupled to a skeleton member of a vehicle body. There is disclosed a technique that is a structure and that provides a step between a curved surface portion and a flat portion.
Japanese Laid-Open Patent Publication No. 2002-160674

ところで、こうした車両のフロアパネルにおいては、確実に剛性を向上させて共振周波数の上昇を図り、且つ、スペース的な面から考慮すると上述の特許文献１に開示されるような１つの大きな曲面部（鍋底部）を形成するよりも、複数の鍋底部を形成することが好ましい。しかしながら、このような構造では、鍋底部と鍋底部との間に必然的に形成される平坦部、及び、鍋底部の形状等を原因とする新たなフロアパネルの剛性を低下させる要因が生じ、共振周波数を目標とする値にまで上昇させることが難しくなるという問題がある。   By the way, in such a vehicle floor panel, the rigidity is surely improved to increase the resonance frequency, and in consideration of space, one large curved surface portion (disclosed in Patent Document 1 described above) ( It is preferable to form a plurality of pot bottoms rather than forming a pot bottom). However, in such a structure, a flat part inevitably formed between the pan bottom and the pan bottom, and a factor that reduces the rigidity of the new floor panel due to the shape of the pan bottom, etc. occur. There is a problem that it is difficult to raise the resonance frequency to a target value.

本発明は上記事情に鑑みてなされたもので、特に、板厚を厚くしたり形状を変更することなくコスト低減、軽量化を維持しながら安定して確実に共振点を上昇させ振動騒音を低減し、快適性を向上させることができる車両のフロアパネルを提供することを目的とする。   The present invention has been made in view of the above circumstances, and in particular, it is possible to stably raise the resonance point while reducing the cost without increasing the plate thickness or changing the shape while maintaining the weight, thereby reducing the vibration noise. And it aims at providing the floor panel of the vehicle which can improve comfort.

本発明は、フロアパネル本体から下方に向けて膨出する複数の膨出部を有する車両のフロアパネルにおいて、上記フロアパネル本体下部に、少なくとも上記膨出部の底部と底部とを連接する補剛部材を設けたことを特徴としている。   The present invention provides a vehicle floor panel having a plurality of bulging portions that bulge downward from the floor panel main body, and stiffening that connects at least the bottom and bottom of the bulging portion to the lower portion of the floor panel main body. It is characterized by providing a member.

本発明による車両のフロアパネルによれば、特に、板厚を厚くしたり形状を変更することなくコスト低減、軽量化を維持しながら安定して確実に共振点を上昇させ振動騒音を低減し、快適性を向上させることが可能となる。   According to the floor panel of the vehicle according to the present invention, in particular, the resonance point is raised stably and reliably while reducing the cost without increasing the thickness or changing the shape while maintaining the weight reduction, and the vibration noise is reduced. Comfortability can be improved.

以下、図面に基づいて本発明の実施の形態を説明する。
図１乃至図１５は本発明の実施の一形態を示し、図１はフロントフロアパネルの斜視図、図２は補剛部材及びその取り付け説明図、図３は図２のＡ−Ａ断面図、図４は図２のＢ−Ｂ断面図、図５は図２のＣ−Ｃ断面図、図６は図２とは異なる補剛部材及びその取り付け例の説明図、図７は図６のＥ−Ｅ断面図、図８は図６のＦ−Ｆ断面図、図９は図２、６とは異なる補剛部材及びその取り付け例の説明図、図１０は図９のＨ−Ｈ断面図、図１１は図９のＩ−Ｉ断面図、図１２は図２、６、９とは異なる補剛部材及びその取り付け例の説明図、図１３は図１２のＪ−Ｊ断面図、図１４は図１２のＫ−Ｋ断面図、図１５は図１２のＬ−Ｌ断面図である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 to FIG. 15 show an embodiment of the present invention, FIG. 1 is a perspective view of a front floor panel, FIG. 2 is an explanatory diagram of a stiffening member and its attachment, and FIG. 3 is a sectional view taken along line AA in FIG. 4 is a sectional view taken along the line BB in FIG. 2, FIG. 5 is a sectional view taken along the line CC in FIG. 2, FIG. 6 is an explanatory view of a stiffening member different from FIG. -E sectional view, FIG. 8 is an FF sectional view of FIG. 6, FIG. 9 is an explanatory view of a stiffening member different from FIGS. 2 and 6 and its mounting example, FIG. 10 is an HH sectional view of FIG. 11 is a cross-sectional view taken along the line II of FIG. 9, FIG. 12 is an explanatory view of a stiffening member different from FIGS. 2, 6, and 9 and an example of its attachment, FIG. 12 is a sectional view taken along the line KK in FIG. 12, and FIG. 15 is a sectional view taken along the line LL in FIG.

図１において、符号１は車両のフロントフロアパネルを示し、このフロントフロアパネル１のフロアパネル本体１ａの前端縁１ｆは、車室とエンジンルームとを区画するトーボード２の下縁に連接されており、フロアパネル本体１ａの後端縁１ｒは、図示しないリヤフロアパネルの前端縁と接続されている。   In FIG. 1, reference numeral 1 denotes a front floor panel of a vehicle. A front end edge 1f of a floor panel main body 1a of the front floor panel 1 is connected to a lower edge of a toe board 2 that partitions a vehicle compartment and an engine room. The rear edge 1r of the floor panel body 1a is connected to the front edge of a rear floor panel (not shown).

また、フロアパネル本体１ａの左右両端は、車両前後方向にかけて上方（車室内側）に向け屈曲されてフランジ部３ｌ，３ｒが形成されており、該フランジ部３ｌ，３ｒが、それぞれ車体のサイドシルインナパネル４ｌ，４ｒと、例えば、スポット溶接、或いは、レーザ溶接等により接合されている。   The left and right ends of the floor panel main body 1a are bent upward (in the vehicle interior) in the vehicle front-rear direction to form flange portions 3l and 3r. The flange portions 3l and 3r are respectively side sill inners of the vehicle body. It is joined to the panels 4l and 4r by, for example, spot welding or laser welding.

フロアパネル本体１ａの車幅方向の略中央には、車体前後方向に延在して車室内側に***する断面略逆Ｕ字状のトンネル部５が形成されており、このトンネル部５の両側にフロア部６ｌ，６ｒが設けられている。   A substantially reverse U-shaped cross-section of a tunnel portion 5 extending in the longitudinal direction of the vehicle body and projecting toward the vehicle interior side is formed at substantially the center in the vehicle width direction of the floor panel body 1a. Are provided with floor portions 6l and 6r.

フロア部６ｌの上面には、車幅方向に延在する断面略コ字状で、フロア部６ｌの上面とで中空閉断面を形成すると共に、サイドシルインナパネル４ｌとトンネル部５の側面とを連結するシートクロスメンバ前７ｌ、シートクロスメンバ後８ｌが溶接されている。   The upper surface of the floor portion 6l has a substantially U-shaped cross section extending in the vehicle width direction. A hollow closed section is formed with the upper surface of the floor portion 61 and the side sill inner panel 4l and the side surface of the tunnel portion 5 are connected. The front seat cross member 7l and the seat cross member rear 8l are welded.

また、フロア部６ｒの上面にも同様に、車幅方向に延在する断面略コ字状で、フロア部６ｒの上面とで中空閉断面を形成すると共に、サイドシルインナパネル４ｒとトンネル部５の側面とを連結するシートクロスメンバ前７ｒ、シートクロスメンバ後８ｒが溶接されている。   Similarly, the upper surface of the floor portion 6r has a substantially U-shaped cross section extending in the vehicle width direction, and forms a hollow closed cross section with the upper surface of the floor portion 6r. The side sill inner panel 4r and the tunnel portion 5 The front 7r of the seat cross member that connects the side surfaces and the rear 8r of the seat cross member are welded.

更に、左右のフロア部６ｌ，６ｒには、それぞれ車幅方向の下面略中央には、車体前後方向に延在する断面略コ字状で、フロア部６ｌ，６ｒの下面とで中空閉断面を形成するフロアフレーム９ｌ，９ｒが溶接されている。   Further, the left and right floor portions 6l and 6r have a substantially U-shaped cross section extending in the vehicle longitudinal direction at the center of the lower surface in the vehicle width direction, and have a hollow closed cross section with the lower surfaces of the floor portions 6l and 6r. The floor frames 9l and 9r to be formed are welded.

左右のフロア部６ｌ，６ｒの上述のシートクロスメンバ前７ｌ，７ｒ、シートクロスメンバ後８ｌ，８ｒ、フロアフレーム９ｌ，９ｒが溶接される部位は、それぞれ平面状に形成されており、これら各平面状部位により区画されるパネルには、それぞれ下方に向けて膨出する鍋底形状の膨出部１０が形成されている。   The portions of the left and right floor portions 6l and 6r where the above-mentioned seat cross member front 7l and 7r, the seat cross member rear 8l and 8r, and the floor frames 9l and 9r are welded are formed in a flat shape. Each of the panels partitioned by the shaped portions is formed with a pan bottom-shaped bulging portion 10 that bulges downward.

すなわち、シートクロスメンバ前７ｌ，７ｒの前方でフロアフレーム９ｌ，９ｒにより左右に区画される部分には、それぞれ１つの膨出部１０が形成されている。   In other words, one bulging portion 10 is formed in each of the portions partitioned left and right by the floor frames 9l and 9r in front of the seat cross members 7l and 7r.

また、シートクロスメンバ前７ｌ，７ｒとシートクロスメンバ後８ｌ，８ｒとの間でフロアフレーム９ｌ，９ｒにより左右に区画される部分、及び、シートクロスメンバ後８ｌ，８ｒの後方でフロアフレーム９ｌ，９ｒにより左右に区画される部分には、それぞれ２つの膨出部１０が形成されている。   Further, a portion of the floor frame 9l, 9r divided right and left between the seat cross member front 7l, 7r and the seat cross member rear 8l, 8r, and the floor frame 9l behind the seat cross member 8l, 8r, Two bulging portions 10 are formed in each of the portions divided by 9r on the left and right.

本実施の形態によるフロアパネル本体１ａでは、このように複数の膨出部１０を形成することにより剛性を高め、エンジンの振動騒音や排気音、路面からのロードノイズ等の周波数より高い領域に共振周波数を設定するようになっている。   In the floor panel main body 1a according to the present embodiment, the plurality of bulged portions 10 are formed in this way to increase rigidity and resonate in a region higher than the frequency of engine vibration noise, exhaust noise, road noise, etc. The frequency is set.

本実施の形態では、図２〜図５に示すように、フロアパネル本体１ａのシートクロスメンバ前７ｌ（７ｒ）とシートクロスメンバ後８ｌ（８ｒ）の間の下部に、補剛部材１５がスポット溶接にて設けられている。尚、図２〜図５は、左側のフロア部６ｌを拡大して補剛部材１５を説明する図であるが、右側のフロア部６ｒにも略対称的に補剛部材１５が設けられている。従って、右側のフロア部６ｒに設けられる補剛部材１５についても分かり易いように、右側のフロア部６ｒに関する符号は括弧で示しながら説明する。   In the present embodiment, as shown in FIGS. 2 to 5, the stiffening member 15 is spotted on the lower portion of the floor panel body 1a between the front 7l (7r) of the seat cross member and the rear 8l (8r) of the seat cross member. It is provided by welding. 2 to 5 are diagrams for explaining the stiffening member 15 by enlarging the left floor portion 61, but the stiffening member 15 is also provided substantially symmetrically on the right floor portion 6r. . Therefore, in order to facilitate understanding of the stiffening member 15 provided on the right floor portion 6r, the reference numerals related to the right floor portion 6r will be described in parentheses.

補剛部材１５は、図３に示すように、車幅方向にかけて中央が凸状に形成されており（凸状部１５ａ）、この凸状部１５ａが膨出部１０と膨出部１０との間に形成される平面部１１とスポット溶接されている。   As shown in FIG. 3, the stiffening member 15 is formed in a convex shape in the center in the vehicle width direction (convex portion 15 a), and the convex portion 15 a is formed between the bulging portion 10 and the bulging portion 10. It is spot welded to the flat portion 11 formed therebetween.

また、補剛部材１５の凸状部１５ａの前後に形成される両端部１５ｂ，１５ｂが、それぞれの側の膨出部１０，１０の底部１０bo，１０boとスポット溶接されている。   Further, both end portions 15b and 15b formed before and after the convex portion 15a of the stiffening member 15 are spot-welded to the bottom portions 10bo and 10bo of the bulging portions 10 and 10 on the respective sides.

また、補剛部材１５は、図４に示すように、凸状部１５ａはそのままフロアパネル本体１ａの平面部１１に沿って、サイドシルインナパネル４ｌ（４ｒ）まで延出され、このサイドシルインナパネル４ｌ（４ｒ）の形状に沿いながら、端部１５ｃが下方に向けて屈曲されている。   Further, as shown in FIG. 4, the stiffening member 15 has the convex portion 15a extended as it is along the flat portion 11 of the floor panel main body 1a to the side sill inner panel 4l (4r), and this side sill inner panel 4l. While following the shape of (4r), the end 15c is bent downward.

更に、補剛部材１５は、図５に示すように、凸状部１５ａの前後に形成された両端部１５ｂ，１５ｂは、そのまま膨出部１０，１０の底部１０bo，１０boからサイドシルインナパネル４ｌ（４ｒ）まで延出され、端部１５ｃが下方に向けて屈曲されている。   Further, as shown in FIG. 5, in the stiffening member 15, both end portions 15b and 15b formed before and after the convex portion 15a are directly connected to the side sill inner panel 4l (from the bottom portions 10bo and 10bo of the bulging portions 10 and 10). 4r) and the end 15c is bent downward.

そして、補剛部材１５の端部１５ｃは、サイドシルインナパネル４ｌ（４ｒ）と複数点（例えば３点）でスポット溶接されている。   The end 15c of the stiffening member 15 is spot welded to the side sill inner panel 4l (4r) at a plurality of points (for example, three points).

このように、本実施の形態によれば、フロアパネル本体下部に、少なくとも膨出部１０，１０の底部１０boと底部１０boとを連接する補剛部材１５を設けたので、確実に剛性を向上させて共振周波数の上昇を図り（例えば５００Ｈｚ以上まで上昇させ）、且つ、スペース的な面から考慮して、複数の鍋底部１０を形成したとしても剛性を低下させることがない。このため、板厚を厚くしたり形状を変更することなくコスト低減、軽量化を維持しながら安定して確実に共振点を上昇させ振動騒音を低減し、快適性を向上させることが可能となっている。   As described above, according to the present embodiment, since the stiffening member 15 that connects at least the bottom 10bo and the bottom 10bo of the bulging portions 10 and 10 is provided at the lower portion of the floor panel body, the rigidity is surely improved. Thus, the resonance frequency is increased (e.g., increased to 500 Hz or more), and even if a plurality of pan bottom portions 10 are formed in consideration of space, the rigidity is not lowered. For this reason, without increasing the thickness or changing the shape, it is possible to reduce the vibration noise and improve the comfort by increasing the resonance point stably and securely while maintaining the weight reduction and weight reduction. ing.

また、補剛部材１５は、凸状部１５ａが膨出部１０と膨出部１０との間に形成される平面部１１とスポット溶接され、凸状部１５ａの前後に形成される両端部１５ｂ，１５ｂがそれぞれの側の膨出部１０，１０の底部１０bo，１０boとスポット溶接される構成であるため、これらを一体として確実に剛性を向上することが可能となっている。   Further, the stiffening member 15 is spot-welded to the flat portion 11 formed between the bulging portion 10 and the protruding portion 15a, and both end portions 15b formed before and after the protruding portion 15a. 15b are spot welded to the bottom portions 10bo and 10bo of the bulging portions 10 and 10 on the respective sides, so that the rigidity can be reliably improved by integrating them.

更に、補剛部材１５は、フロアパネル本体１ａのシートクロスメンバ前７ｌ（７ｒ）とシートクロスメンバ後８ｌ（８ｒ）の間の下部にサイドシルインナパネル４ｌ（４ｒ）と複数点でスポット溶接して設けるようにしているため、ポール側面衝突等の衝突に対しても車室内を安全に保護する十分な強度が得られる。   Further, the stiffening member 15 is spot-welded at a plurality of points to the side sill inner panel 4l (4r) at the lower portion between the front 7l (7r) and the rear 8l (8r) of the seat cross member of the floor panel body 1a. Since it is provided, it is possible to obtain sufficient strength to safely protect the passenger compartment against a collision such as a pole side collision.

尚、補剛部材１５は、図６〜図８に示す補剛部材２５、或いは、図９〜図１１に示す補剛部材３５、或いは、図１２〜図１５に示す補剛部材３５のようなものであっても良い。   The stiffening member 15 is similar to the stiffening member 25 shown in FIGS. 6 to 8, the stiffening member 35 shown in FIGS. 9 to 11, or the stiffening member 35 shown in FIGS. It may be a thing.

図６に示す補剛部材２５は、補剛部材１５を更にフロアフレーム９ｌ（９ｒ）にまで延出して形成したものであり、図２〜図５に示す補剛部材１５と同様に、フロアパネル本体１ａのシートクロスメンバ前７ｌ（７ｒ）とシートクロスメンバ後８ｌ（８ｒ）の間の下部に、スポット溶接にて設けられている。   The stiffening member 25 shown in FIG. 6 is formed by further extending the stiffening member 15 to the floor frame 9l (9r). Like the stiffening member 15 shown in FIGS. The main body 1a is provided by spot welding at a lower portion between the seat cross member front 7l (7r) and the seat cross member rear 8l (8r).

補剛部材２５は、車幅方向にかけて中央が凸状に形成されており（凸状部２５ａ）、この凸状部２５ａが膨出部１０と膨出部１０との間に形成される平面部１１とスポット溶接されている。尚、図６中における断面Ｄ−Ｄは、図３の符号１５を２５と読み替えれば図３と同じ図となるので省略する。   The stiffening member 25 has a convex shape at the center in the vehicle width direction (convex portion 25a), and the convex portion 25a is a flat surface portion formed between the bulging portion 10 and the bulging portion 10. 11 and spot welded. Note that the section DD in FIG. 6 is the same as FIG. 3 when the reference numeral 15 in FIG.

また、補剛部材２５の凸状部２５ａの前後に形成される両端部２５ｂ，２５ｂが、それぞれの側の膨出部１０，１０の底部１０bo，１０boとスポット溶接されている。   Further, both end portions 25b and 25b formed before and after the convex portion 25a of the stiffening member 25 are spot welded to the bottom portions 10bo and 10bo of the bulging portions 10 and 10 on the respective sides.

また、補剛部材２５は、図７に示すように、凸状部２５ａの一端側は、そのままフロアパネル本体１ａの平面部１１に沿って、サイドシルインナパネル４ｌ（４ｒ）まで延出され、このサイドシルインナパネル４ｌ（４ｒ）の形状に沿いながら、端部２５ｃが下方に向けて屈曲されている。更に、凸状部２５ａの他端側は、そのままフロアパネル本体１ａの平面部１１に沿って、フロアフレーム９ｌ（９ｒ）のフロアパネル本体１ａに対するフランジ部分９la（９ra）上まで延出され、フランジ部分９la（９ra）の板厚分だけ段付がなされて、段付部２５ｄが形成されている。   Further, as shown in FIG. 7, the stiffening member 25 has one end of the convex portion 25a directly extended to the side sill inner panel 4l (4r) along the flat portion 11 of the floor panel body 1a. The end portion 25c is bent downward while following the shape of the side sill inner panel 4l (4r). Further, the other end side of the convex portion 25a is extended as it is along the flat portion 11 of the floor panel body 1a up to the flange portion 9la (9ra) with respect to the floor panel body 1a of the floor frame 9l (9r). A stepped portion corresponding to the plate thickness of the portion 9la (9ra) is formed to form a stepped portion 25d.

また、補剛部材２５は、図８に示すように、凸状部２５ａの前後に形成された両端部２５ｂ，２５ｂの一端側は、そのまま膨出部１０，１０の底部１０bo，１０boからサイドシルインナパネル４ｌ（４ｒ）まで延出され、端部２５ｃが下方に向けて屈曲されている。更に、両端部２５ｂ，２５ｂの他端側は、そのまま膨出部１０，１０の曲面形状に沿って、フロアフレーム９ｌ（９ｒ）のフロアパネル本体１ａに対するフランジ部分９la（９ra）上まで延出され、フランジ部分９la（９ra）の板厚分だけ段付がなされて、段付部２５ｄが形成されている。   In addition, as shown in FIG. 8, the stiffening member 25 has side sill inners from the bottom portions 10bo and 10bo of the bulging portions 10 and 10 at one end side of both end portions 25b and 25b formed before and after the convex portion 25a. It extends to the panel 4l (4r), and the end 25c is bent downward. Furthermore, the other end sides of both end portions 25b and 25b are directly extended on the flange portion 9la (9ra) with respect to the floor panel body 1a of the floor frame 9l (9r) along the curved surface shape of the bulging portions 10 and 10. The stepped portion 25d is formed by being stepped by the thickness of the flange portion 9la (9ra).

そして、補剛部材２５の一端側の端部２５ｃは、サイドシルインナパネル４ｌ（４ｒ）と複数点（例えば３点）でスポット溶接される一方、補剛部材２５の他端側の段付部２５ｄはフロアフレーム９ｌ（９ｒ）のフランジ部分９la（９ra）と共にフロアパネル本体１ａに複数点（例えば３点）でスポット溶接されている。   The end 25c on one end side of the stiffening member 25 is spot welded to the side sill inner panel 4l (4r) at a plurality of points (for example, three points), while the stepped portion 25d on the other end side of the stiffening member 25 is provided. Are spot welded to the floor panel body 1a together with the flange portion 9la (9ra) of the floor frame 9l (9r) at a plurality of points (for example, three points).

このように、補剛部材２５は、補剛部材１５を更にフロアフレーム９ｌ（９ｒ）にまで延出して形成することにより、一層、確実な剛性の向上を図ることが可能となる。   In this way, the stiffening member 25 can be further improved in rigidity by forming the stiffening member 15 further extending to the floor frame 9l (9r).

図９に示す補剛部材３５は、補剛部材１５をサイドシルインナパネル４ｌ（４ｒ）まで延出することなく断面ハット状の単純な形状で形成したものであり、図２〜図５に示す補剛部材１５と同様に、フロアパネル本体１ａのシートクロスメンバ前７ｌ（７ｒ）とシートクロスメンバ後８ｌ（８ｒ）の間の下部に、スポット溶接にて設けられている。   The stiffening member 35 shown in FIG. 9 is formed by a simple shape having a cross-sectional hat shape without extending the stiffening member 15 to the side sill inner panel 4l (4r). Similar to the rigid member 15, the floor panel body 1a is provided by spot welding at the lower portion between the front 7l (7r) of the seat cross member and the rear 8l (8r) of the seat cross member.

補剛部材３５は、車幅方向にかけて中央が凸状に形成されており（凸状部３５ａ）、この凸状部３５ａが膨出部１０と膨出部１０との間に形成される平面部１１とスポット溶接されている。尚、図９中における断面Ｇ−Ｇは、図３の符号１５を３５と読み替えれば図３と同じ図となるので省略する。   The stiffening member 35 has a convex center in the vehicle width direction (convex portion 35a), and the convex portion 35a is a flat portion formed between the bulging portion 10 and the bulging portion 10. 11 and spot welded. Note that the section GG in FIG. 9 is the same as FIG. 3 if the reference numeral 15 in FIG.

また、補剛部材３５の凸状部３５ａの前後に形成される両端部３５ｂ，３５ｂが、それぞれの側の膨出部１０，１０の底部１０bo，１０boとスポット溶接されている。   Further, both end portions 35b and 35b formed before and after the convex portion 35a of the stiffening member 35 are spot welded to the bottom portions 10bo and 10bo of the bulging portions 10 and 10 on the respective sides.

すなわち、図１０、及び、図１１からも判るように、補剛部材３５は、断面がハット状の板で形成されている。   That is, as can be seen from FIGS. 10 and 11, the stiffening member 35 is formed of a hat-shaped plate.

このように、補剛部材３５は、断面ハット状の単純な形状で形成したので、取付作業も容易であり、また、コストも安く実現することが可能となる。   As described above, the stiffening member 35 is formed in a simple shape having a hat-shaped cross section, so that the mounting operation is easy and the cost can be reduced.

図１２に示す補剛部材４５は、単純な、一枚の長方形の平板で形成されており、図１３〜図１５からも判るように、図２〜図５に示す補剛部材１５と同様に、フロアパネル本体１ａのシートクロスメンバ前７ｌ（７ｒ）とシートクロスメンバ後８ｌ（８ｒ）の間の下部に、両端部がそれぞれ膨出部１０，１０の底部１０bo，１０boとスポット溶接され固定されている。   The stiffening member 45 shown in FIG. 12 is formed of a simple rectangular flat plate, and as can be seen from FIG. 13 to FIG. 15, is similar to the stiffening member 15 shown in FIG. 2 to FIG. Both ends of the floor panel main body 1a between the front portion 7l (7r) of the seat cross member and the rear portion 8l (8r) of the seat cross member are spot welded to the bottom portions 10bo and 10bo of the bulging portions 10 and 10, respectively. ing.

このため、図９で示す補剛部材３５より更に取付作業も容易であり、また、コストも安く実現することが可能となる。   For this reason, attachment work is further easier than the stiffening member 35 shown in FIG. 9, and the cost can be reduced.

以上、例示した４つの補剛部材１５，２５，３５，４５は、それぞれ異なる剛性を有し、異なる形状を有することから、必要とされる剛性に応じて、また、取付可能な位置に応じて選択的に用いることができる。例えば、シートクロスメンバ前７ｌ，７ｒとシートクロスメンバ後８ｌ，８ｒとの間でフロアフレーム９ｌ，９ｒにより左右に区画される部分のサイドシル側の膨出部１０，１０に対しては、４つの補剛部材１５，２５，３５，４５の何れかを用い、トンネル部５側の膨出部１０，１０に対しては、補剛部材２５，３５，４５の何れかを用いることができる。シートクロスメンバ後８ｌ，８ｒの後方でフロアフレーム９ｌ，９ｒにより左右に区画される部分に形成される膨出部１０，１０に対しても同様である。   The four stiffening members 15, 25, 35, 45 exemplified above have different rigidity and different shapes, so that they depend on the required rigidity and on the positions where they can be attached. It can be used selectively. For example, there are four bulging portions 10 and 10 on the side sill side of the portion partitioned left and right by the floor frames 9l and 9r between the front and rear seat cross members 7l and 7r and 8l and 8r. Any one of the stiffening members 15, 25, 35, and 45 can be used, and any one of the stiffening members 25, 35, and 45 can be used for the bulging portions 10 and 10 on the tunnel portion 5 side. The same applies to the bulging portions 10 and 10 formed in the left and right sections by the floor frames 9l and 9r behind the seat cross members 8l and 8r.

また、本実施の形態では、フロントフロアパネル１についての例を示しているが、リアフロアパネルについても複数の膨出部が形成されている場合には、本発明を適用できることは云うまでもない。   Moreover, although the example about the front floor panel 1 is shown in this Embodiment, it cannot be overemphasized that this invention is applicable when the some bulge part is formed also about a rear floor panel.

フロントフロアパネルの斜視図Front floor panel perspective view 補剛部材及びその取り付け説明図Stiffening member and its installation illustration 図２のＡ−Ａ断面図AA sectional view of FIG. 図２のＢ−Ｂ断面図BB sectional view of FIG. 図２のＣ−Ｃ断面図CC sectional view of FIG. 図２とは異なる補剛部材及びその取り付け例の説明図Explanatory drawing of the stiffening member different from FIG. 2, and its attachment example 図６のＥ−Ｅ断面図EE sectional view of FIG. 図６のＦ−Ｆ断面図FF sectional view of FIG. 図２、６とは異なる補剛部材及びその取り付け例の説明図Explanatory drawing of the stiffening member different from FIGS. 図９のＨ−Ｈ断面図HH sectional view of FIG. 図９のＩ−Ｉ断面図II sectional view of FIG. 図２、６、９とは異なる補剛部材及びその取り付け例の説明図Explanatory drawing of a stiffening member different from FIGS. 図１２のＪ−Ｊ断面図JJ sectional view of FIG. 図１２のＫ−Ｋ断面図KK sectional view of FIG. 図１２のＬ−Ｌ断面図LL sectional view of FIG.

符号の説明Explanation of symbols

１ フロントフロアパネル
１ａ フロアパネル本体
４ｌ，４ｒ サイドシルインナパネル
６ｌ，６ｒ フロア部
７ｌ，７ｒ シートクロスメンバ前
８ｌ，８ｒ シートクロスメンバ後
９ｌ，９ｒ フロアフレーム
１０ 膨出部
１０bo 底部
１１ 平面部
１５ 補剛部材
１５ａ 凸状部
１５ｂ 端部
１５ｃ 端部
２５ 補剛部材
２５ａ 凸状部
２５ｂ 端部
２５ｃ 端部
２５ｄ 段付部
３５ 補剛部材
３５ａ 凸状部
３５ｂ 端部
４５ 補剛部材
代理人 弁理士 伊 藤 進 DESCRIPTION OF SYMBOLS 1 Front floor panel 1a Floor panel main body 4l, 4r Side sill inner panel 6l, 6r Floor part 7l, 7r Seat cross member front 8l, 8r Seat cross member rear 9l, 9r Floor frame 10 Expansion part 10bo Bottom part 11 Flat part 15 Stiffening Member 15a Convex part 15b End part 15c End part 25 Stiffening member 25a Convex part 25b End part 25c End part 25d Stepped part 35 Stiffening member 35a Convex part 35b End part 45 Stiffening member
Agent Patent Attorney Susumu Ito

Claims (4)

フロアパネル本体から下方に向けて膨出する複数の膨出部を有する車両のフロアパネルにおいて、
上記フロアパネル本体下部に、少なくとも上記膨出部の底部と底部とを連接する補剛部材を設けたことを特徴とする車両のフロアパネル。 In a vehicle floor panel having a plurality of bulges bulging downward from the floor panel body,
A floor panel for a vehicle, wherein a stiffening member that connects at least a bottom portion of the bulging portion is provided at a lower portion of the floor panel main body. 上記補剛部材を設ける一方の膨出部と他方の膨出部との間には平坦部を形成し、上記補剛部材は、上記一方の膨出部の底部と上記平坦部と上記他方の膨出部の底部とを連接して設けることを特徴とする請求項１記載の車両のフロアパネル。   A flat portion is formed between one bulging portion on which the stiffening member is provided and the other bulging portion, and the stiffening member includes the bottom portion of the one bulging portion, the flat portion, and the other bulging portion. The vehicle floor panel according to claim 1, wherein the floor portion of the bulging portion is provided so as to be connected. 上記フロアパネル本体は、車幅方向端部をサイドシルに連結するものであって、上記補剛部材は、少なくとも一方の膨出部の底部と他方の膨出部の底部と上記サイドシルとに連接して設けることを特徴とする請求項１又は請求項２記載の車両のフロアパネル。   The floor panel main body is connected to a side sill at an end in the vehicle width direction, and the stiffening member is connected to at least the bottom of one bulge, the bottom of the other bulge, and the side sill. The vehicle floor panel according to claim 1, wherein the vehicle floor panel is provided. 上記フロアパネル本体は、上記フロアパネル本体上面に車幅方向に延出する一対のシートクロスメンバを有し、上記補剛部材は、少なくとも該一対のシートクロスメンバの間に形成した一方の膨出部の底部と他方の膨出部の底部とを連接して設けることを特徴とする請求項１乃至請求項３の何れか一つに記載の車両のフロアパネル。   The floor panel body has a pair of seat cross members extending in the vehicle width direction on the top surface of the floor panel body, and the stiffening member is at least one bulge formed between the pair of seat cross members. The vehicle floor panel according to any one of claims 1 to 3, wherein a bottom portion of the first portion and a bottom portion of the other bulging portion are connected to each other.
JP2005103976A 2005-03-31 2005-03-31 Vehicle floor panel Expired - Fee Related JP4647367B2 (en)

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