JP4639926B2 - Vehicle floor panel structure - Google Patents

Vehicle floor panel structure Download PDF

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JP4639926B2
JP4639926B2 JP2005127032A JP2005127032A JP4639926B2 JP 4639926 B2 JP4639926 B2 JP 4639926B2 JP 2005127032 A JP2005127032 A JP 2005127032A JP 2005127032 A JP2005127032 A JP 2005127032A JP 4639926 B2 JP4639926 B2 JP 4639926B2
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floor panel
vehicle floor
continuous
panel structure
bulging
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啓太 天冨
好文 荻野
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Nissan Motor Co Ltd
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Description

本発明は、剛性のアップを図った車両のフロアパネル構造に関するものである。   The present invention relates to a vehicle floor panel structure with increased rigidity.

従来の車両用のフロアパネルとしては、凹凸のない平面状に形成されたものや、剛性アップのために平面部にビード（リブ状の凹凸）を入れたもの等が知られている（例えば、特許文献１参照）。
特開２００４−２１００２７号公報 Conventional floor panels for vehicles are known to have a flat surface with no unevenness, or have a bead (rib-shaped unevenness) in the flat surface to increase rigidity (for example, Patent Document 1).
Japanese Patent Laid-Open No. 2004-210027

ところで、剛性アップのためにフロアパネルにビードを追加した場合、制振用のメルシートをフロアパネルに貼り付ける際に、ビード部分に対するメルシートの密着性が悪化するという問題があった。また、塗装工程において、車体が電着塗装液中に浸漬すると、ビード部分の周辺に気泡が溜まりやすく、そのために塗装品質が悪化するという問題があった。   By the way, when a bead is added to the floor panel in order to increase rigidity, there is a problem in that the adhesion of the melt sheet to the bead portion deteriorates when the vibration-damping melt sheet is attached to the floor panel. Further, when the vehicle body is immersed in the electrodeposition coating solution in the coating process, there is a problem that bubbles are likely to be collected around the bead portion, which deteriorates the coating quality.

本発明は、上記事情を考慮し、剛性アップを図りながら、メルシートの密着性の向上と、塗装工程における気泡の抜けを良くすることのできる車両のフロアパネル構造を提供することを目的とする。   In view of the above circumstances, an object of the present invention is to provide a vehicle floor panel structure capable of improving the adhesion of a melt sheet and improving the escape of bubbles in a painting process while improving rigidity.

前記目的を達成するために、この発明の車両のフロアパネル構造は、車両のフロアパネルの基準平面としての平面部より板厚方向に膨出した複数の曲面状の膨出部と、隣接する前記膨出部同士を連結する連設部と、を備え、前記連設部は、前記平面部に沿った平面状の頂面と、該頂面の両端縁から前記平面部に向けて屈曲して斜めに延びる一対の傾斜面と、から一体に形成されると共に、前記隣接する膨出部と連設部とは、これら膨出部と連設部の配列方向に沿って連続したなだらかな曲面に形成されていることを特徴とする。 In order to achieve the above object, a vehicle floor panel structure according to the present invention includes a plurality of curved bulged portions that bulge in a plate thickness direction from a plane portion as a reference plane of a vehicle floor panel, A connecting portion that connects the bulging portions, and the connecting portion is bent toward the planar portion from a planar top surface along the planar portion and from both ends of the top surface. A pair of inclined surfaces extending obliquely are formed integrally with each other, and the adjacent bulging portion and the continuous portion are formed into a gentle curved surface that is continuous along the arrangement direction of the bulging portion and the continuous portion. It is formed .

この発明によれば、各膨出部がそれぞれ独立して存在するのではなく、連設部で連結した連続体として存在するので、フロアパネルの剛性が高められる。また、膨出部と連設部は、連続したなだらかな曲面として形成することが容易となるので、メルシートを貼り付ける場合の密着性を良好に保つことができる。また、なだらかな曲面状に形成することにより、塗装工程（電着塗装）における気泡の抜けがよくなるため、塗装品質が向上する。   According to this invention, since each bulging part does not exist independently, but exists as a continuous body connected by the connecting part, the rigidity of the floor panel is increased. In addition, since the bulging portion and the continuous portion can be easily formed as a continuous gentle curved surface, it is possible to maintain good adhesion when the melt sheet is attached. In addition, the formation of a gentle curved surface improves the quality of coating because air bubbles are better removed in the coating process (electrodeposition coating).

以下、本発明の実施形態を図面を参照して説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は車両のフロアパネルの一部を示す斜視図であり、図２（ａ）は図１中のＩＩ部の拡大図、（ｂ）は（ａ）のＩＩｂ−ＩＩｂ矢視断面図である。   FIG. 1 is a perspective view showing a part of a vehicle floor panel, FIG. 2 (a) is an enlarged view of a portion II in FIG. 1, and (b) is a cross-sectional view taken along arrow IIb-IIb in FIG. .

図１に示すように、アンダーボディは、車幅方向外側部で車両前後方向に延びる閉断面構造のサイドシル３と、両サイドシル３に跨って設けられるフロアパネル１と、を備えている。なお、図１はフロアパネル１の車幅方向左半分を示すものであり、図示せぬ右半分は左半分と対称形状である。   As shown in FIG. 1, the underbody includes a side sill 3 having a closed cross-sectional structure that extends in the vehicle front-rear direction at the outer side in the vehicle width direction, and a floor panel 1 provided across both side sills 3. FIG. 1 shows the left half of the floor panel 1 in the vehicle width direction, and the right half (not shown) is symmetrical with the left half.

フロアパネル１の車幅方向中央部には、例えばプレス加工などにより車両上方に膨出し且つ車両前後方向に延びるフロアトンネル１ｂが形成されているとともに、プロアパネル１にはフロアトンネル１ｂとサイドシル３とを結ぶ断面ハット状のクロスメンバ４、５が複数（この例では２つ）取り付けられている。これにより、クロスメンバ４、５とフロアパネル１とによって閉断面構造を構成している。図１中符号４はフロントクロスメンバでり、符号５はリアクロスメンバである。   A floor tunnel 1b that bulges upward in the vehicle and extends in the vehicle front-rear direction, for example, by pressing or the like, is formed at the center in the vehicle width direction of the floor panel 1, and a floor tunnel 1b, a side sill 3 and A plurality of cross members 4 and 5 (two in this example) are attached. Accordingly, the cross members 4 and 5 and the floor panel 1 form a closed cross-sectional structure. In FIG. 1, reference numeral 4 denotes a front cross member, and reference numeral 5 denotes a rear cross member.

上述したサイドシル３およびクロスメンバ４、５およびフロアトンネル１ａは、車体骨格部として機能している。   The side sill 3, the cross members 4, 5 and the floor tunnel 1a described above function as a vehicle body skeleton part.

このように構成されたフロアパネル１には、基準平面としての平面部１ａが設けられている。この平面部１ａには、図２に示すようにさらなる剛性アップのために平面部１ａより板厚方向（車両上方）に膨出した曲面状（高さの低いドーム状）の膨出部１０が設けられている。この膨出部１０の車幅方向両側には前後方向に沿ってビード部１ｃ、１ｄが延設されている。   The floor panel 1 configured in this manner is provided with a flat portion 1a as a reference plane. As shown in FIG. 2, the flat surface portion 1a has a bulged portion 10 having a curved surface (a dome shape with a low height) that bulges in the thickness direction (above the vehicle) from the flat surface portion 1a in order to further increase the rigidity. Is provided. Bead portions 1c and 1d extend along the front-rear direction on both sides of the bulging portion 10 in the vehicle width direction.

膨出部１０は、車両前後方向に並んで複数（この例では２つ）設けられている。各膨出部１０は車両上方に凸に湾曲した略球面状に形成されており、膨出部１０の底縁（平面部１ａと交わる箇所）１０ａが平面視で長方形に形成されている。   A plurality of (two in this example) bulges 10 are provided side by side in the vehicle longitudinal direction. Each bulging part 10 is formed in a substantially spherical shape that is convexly curved upward in the vehicle, and a bottom edge (a portion that intersects the flat part 1a) 10a of the bulging part 10 is formed in a rectangular shape in plan view.

隣接する膨出部１０同士は、稜線状の連設部１２を介して互いに連結されていおり、連設部１２は断面がなだらかな山形をなし、その頂面１２ａは平面部１ａに沿った平面として形成されている。   Adjacent bulging portions 10 are connected to each other via a ridge line-like continuous portion 12, the continuous portion 12 has a mountain shape with a gentle cross section, and the top surface 12a is a plane along the flat portion 1a. It is formed as.

ここで、膨出部１０の車幅方向の幅Ｗ２は２本のビード部１ｃ、１ｄの間の幅Ｗ１の半分以上を占めている。また、連設部１２の車幅方向の幅Ｗ３は膨出部１０の幅Ｗ２よりも小さく設定されている。また、連設部１２の高さも膨出部１０の頂上よりも低く設定されている。   Here, the width W2 of the bulging portion 10 in the vehicle width direction occupies half or more of the width W1 between the two bead portions 1c and 1d. Further, the width W3 of the connecting portion 12 in the vehicle width direction is set smaller than the width W2 of the bulging portion 10. Further, the height of the continuous portion 12 is also set lower than the top of the bulging portion 10.

この実施形態のフロアパネルによれば、次の効果を得ることができる。   According to the floor panel of this embodiment, the following effects can be obtained.

（１）この実施形態のフロアパネル構造は、フロアパネル１の基準平面としての平面部１ａより板厚方向に膨出した複数の曲面状の膨出部１０と、隣接する前記膨出部１０同士を連結する稜線状の連設部１２と、を備える。これにより、複数の膨出部１０がそれぞれ独立して存在するのではなく、複数の膨出部１０が稜線状の連設部１２で連結した連続体として存在する。従って、フロアパネル１の剛性が高まる。また、膨出部１０と連設部１２は、連続したなだらかな曲面として形成することが容易となるので、図３に示すように、フロアパネル１の上面にメルシート３を貼り付ける場合に、その密着性を良好に保つことができる。また、なだらかな曲面状に形成することによって、車体を電着塗装液中に浸漬さえる場合、フロアパネル１の下面に溜まった気泡（空気）４の抜けがよくなる。そのため、塗装品質の向上が図れる。   (1) The floor panel structure of this embodiment includes a plurality of curved bulges 10 that bulge in the thickness direction from the flat surface 1a as a reference plane of the floor panel 1, and the adjacent bulges 10 And a ridge line-like connecting portion 12 for connecting the two. As a result, the plurality of bulging portions 10 do not exist independently, but exist as a continuous body in which the plurality of bulging portions 10 are connected by the ridge line-shaped connecting portions 12. Accordingly, the rigidity of the floor panel 1 is increased. Moreover, since it becomes easy to form the bulging part 10 and the connection part 12 as a continuous gentle curved surface, as shown in FIG. 3, when sticking the Mel sheet 3 on the upper surface of the floor panel 1, Adhesion can be kept good. Moreover, when the vehicle body is immersed in the electrodeposition coating liquid, the bubbles (air) 4 accumulated on the lower surface of the floor panel 1 can be easily removed by forming it into a gently curved surface. Therefore, the coating quality can be improved.

（２）また、本実施形態では、膨出部１０が車両上方に凸に湾曲した略球面状である。これにより、フロアパネル１の剛性を高めながら、フロアパネル１の上面をなだらかな曲面とすることができ、メルシート３を貼り付ける際の密着性を一層良好に保つことができる。また、下面もなだらかな曲面とすることができるので、塗装工程におけるフロアパネル１の下面に溜まった気泡４の抜けも一層よくなり、塗装品質の向上が図れる。   (2) In the present embodiment, the bulging portion 10 has a substantially spherical shape that is convexly curved upward. Thereby, while improving the rigidity of the floor panel 1, the upper surface of the floor panel 1 can be made into a gentle curved surface, and the adhesiveness at the time of sticking the Mel sheet 3 can be kept still better. In addition, since the lower surface can also be a gently curved surface, the bubbles 4 accumulated on the lower surface of the floor panel 1 in the painting process can be more easily removed, and the coating quality can be improved.

（３）また、本実施形態では、連設部１２の頂面１２ａがフロアパネル１の基準平面１ａに沿った平面である。これにより、連設部１２へのメルシート３の貼り付けがやりやすくなる。   (3) Further, in the present embodiment, the top surface 12 a of the connecting portion 12 is a plane along the reference plane 1 a of the floor panel 1. This makes it easier to attach the melt sheet 3 to the continuous portion 12.

図４は上記実施形態に対する比較例として、フロアパネル１に車幅方向に延びるビード２を設けた場合を示している。図（ａ）は斜視図、（ｂ）はビード部分の断面図である。   FIG. 4 shows a case where a bead 2 extending in the vehicle width direction is provided on the floor panel 1 as a comparative example to the above embodiment. FIG. 4A is a perspective view, and FIG. 4B is a cross-sectional view of a bead portion.

このようにフロアパネル１にビード２を設けた場合は、（ｂ）に示すように、ビード２を設けた箇所の凹凸がきつくなるので、メルシート３を貼り付けた場合の密着性が悪くなる上、塗装する際に気泡４の抜けが悪くなることにより、塗装品質の悪化を招く可能性がある。   When the bead 2 is provided on the floor panel 1 in this way, as shown in (b), since the unevenness of the place where the bead 2 is provided becomes tight, the adhesion when the Mel sheet 3 is adhered is deteriorated. When the coating is performed, the bubbles 4 are not easily removed, which may lead to deterioration of the coating quality.

なお、本発明は上述の実施形態に限定解釈されるものではなく、以下のような変更が可能である。   In addition, this invention is not limitedly interpreted by the above-mentioned embodiment, The following changes are possible.

例えば、上述の実施形態では膨出部１０の底縁１０ａの形状は略矩形であったが、本発明では膨出部１０の底縁１０ａの形状は円でも楕円でもまたその他の形状でもよい。   For example, in the above-described embodiment, the shape of the bottom edge 10a of the bulging portion 10 is substantially rectangular. However, in the present invention, the shape of the bottom edge 10a of the bulging portion 10 may be a circle, an ellipse, or other shapes.

また例えば上述の実施形態では隣接する膨出部１０同士の間に間隔ｄがあるが、本発明では隣接する膨出部１０同士が連続していてもよい。   Further, for example, in the above-described embodiment, there is an interval d between the adjacent bulging portions 10, but in the present invention, the adjacent bulging portions 10 may be continuous.

またその他、本発明の技術的思想の範囲内で種々の変更が可能である。   In addition, various modifications can be made within the scope of the technical idea of the present invention.

車両のフロアパネルの左半分を示す斜視図である。It is a perspective view which shows the left half of the floor panel of a vehicle. （ａ）は図１中のＩＩ部の拡大図、（ｂ）は（ａ）のＩＩｂ−ＩＩｂ矢視断面図である。(A) is the enlarged view of the II section in FIG. 1, (b) is the IIb-IIb arrow sectional drawing of (a). 図１のフロアパネルの上面にメルシートを貼り付け、更に、下面に塗装を施す場合の説明図である。It is explanatory drawing in the case of affixing a Mel sheet on the upper surface of the floor panel of FIG. 本発明の比較例として、フロアパネルにビードを設けた場合を示し、（ａ）は斜視図、（ｂ）は断面図である。As a comparative example of the present invention, a case where a bead is provided on a floor panel is shown, (a) is a perspective view, and (b) is a cross-sectional view.

符号の説明Explanation of symbols

１ フロアパネル
１ａ 基準平面
１０ 膨出部
１２ 連設部
１２ａ 頂面 DESCRIPTION OF SYMBOLS 1 Floor panel 1a Reference plane 10 Expansion part 12 Connection part 12a Top surface

Claims (2)

車両のフロアパネルの基準平面としての平面部より板厚方向に膨出した複数の曲面状の膨出部と、隣接する前記膨出部同士を連結する連設部と、を備え、
前記連設部は、前記平面部に沿った平面状の頂面と、該頂面の両端縁から前記平面部に向けて屈曲して斜めに延びる一対の傾斜面と、から一体に形成されると共に、
前記隣接する膨出部と連設部とは、これら膨出部と連設部の配列方向に沿って連続したなだらかな曲面に形成されていることを特徴とする車両のフロアパネル構造。 A plurality of curved bulged portions that bulge in the plate thickness direction from a plane portion as a reference plane of a vehicle floor panel, and a connecting portion that connects the adjacent bulged portions ,
The continuous portion is integrally formed from a flat top surface along the flat portion and a pair of inclined surfaces that are bent from both end edges of the top surface toward the flat portion and extend obliquely. With
2. The vehicle floor panel structure according to claim 1, wherein the adjacent bulging portion and the continuous portion are formed in a smooth curved surface that is continuous along an arrangement direction of the bulging portion and the continuous portion . 請求項１に記載の車両のフロアパネル構造であって、
前記膨出部は、車両上方に凸に湾曲した略球面状であることを特徴とする車両のフロアパネル構造。 The vehicle floor panel structure according to claim 1,
2. The vehicle floor panel structure according to claim 1, wherein the bulging portion has a substantially spherical shape that is convexly curved upward.
JP2005127032A 2005-04-25 2005-04-25 Vehicle floor panel structure Active JP4639926B2 (en)

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JP6035730B2 (en) * 2011-11-24 2016-11-30 スズキ株式会社 Vehicle floor panel damping structure
JP6217436B2 (en) * 2014-02-14 2017-10-25 スズキ株式会社 Vehicle floor panel structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60152700A (en) * 1984-01-20 1985-08-10 Trinity Ind Corp Electrodeposition painting device
JP2001270470A (en) * 2000-03-24 2001-10-02 Nissan Motor Co Ltd Panel structure
JP2004050913A (en) * 2002-07-18 2004-02-19 Mazda Motor Corp Automobile floor structure and designing method thereof
JP2004237871A (en) * 2003-02-06 2004-08-26 Mazda Motor Corp Floor panel structure of vehicle body

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60152700A (en) * 1984-01-20 1985-08-10 Trinity Ind Corp Electrodeposition painting device
JP2001270470A (en) * 2000-03-24 2001-10-02 Nissan Motor Co Ltd Panel structure
JP2004050913A (en) * 2002-07-18 2004-02-19 Mazda Motor Corp Automobile floor structure and designing method thereof
JP2004237871A (en) * 2003-02-06 2004-08-26 Mazda Motor Corp Floor panel structure of vehicle body

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