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JP4120919B2 - Roof panel structure - Google Patents
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JP4120919B2 - Roof panel structure - Google Patents

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Publication number
JP4120919B2
JP4120919B2 JP2002109920A JP2002109920A JP4120919B2 JP 4120919 B2 JP4120919 B2 JP 4120919B2 JP 2002109920 A JP2002109920 A JP 2002109920A JP 2002109920 A JP2002109920 A JP 2002109920A JP 4120919 B2 JP4120919 B2 JP 4120919B2
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Japan
Prior art keywords
roof panel
panel
wall portion
vehicle
vertical wall
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JP2002109920A
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Japanese (ja)
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JP2003306167A (en
Inventor
寛明 大川
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Suzuki Motor Corp
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Suzuki Motor Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、自動車等のサイドボデーに組付けられるルーフパネルの構造に関するものである。
【0002】
【従来の技術】
自動車の中には、車体の一部を構成する天井部として、例えば、図9および図10に示すような形状のルーフパネル51が組付けられている。このルーフパネル51は、全体的に緩やかな曲面形状の基本面52と、該基本面52上に設けられる複数本の凸状ビード部53と、サイドボデー54への溶接組付け用の接合フランジ部55とによって形成されている。
凸状ビード部53は、車両前後方向へ沿って延びていると共に、車幅方向(図中、左右方向)に間隔を置いて設けられている。また、ルーフパネル51の車幅方向の両側には、これを下方へ折り曲げた縦壁部56が設けられており、接合フランジ部55は、縦壁部56の下端を外方へほぼ直角に折り曲げて設けられ、これら縦壁部56および接合フランジ部55によって断面略L字状に形成されている。一方、サイドボデー54は、ルーフレールを構成するものであり、アウタパネル57およびインナパネル58の上下端フランジ57a,57b,58a,58bを互いに接合することにより、閉断面形状に形成されている。
【0003】
したがって、上記ルーフパネル51は、左右両側の接合フランジ部55をアウタパネル57およびインナパネル58の上端フランジ57a,58aにそれぞれ重ね合わせ、この重ね合わせた部分の溶接点59を上下一対のスポット溶接ガン60a,60bで挟持してスポット溶接することにより接合され、サイドボデー54に組付けられることになる。
【0004】
【発明が解決しようとする課題】
しかしながら、上述した従来のルーフパネル51の構造では、左右両側の凸状ビード部53と接合フランジ部55との間が大きく開いており、両者間に緩やかな曲面形状の基本面52が存在しているので、溶接点59におけるスポット溶接で生じる溶接歪み等が近接する基本面52に発生し易く、外観部の品質保持が難しいという不具合を有していた。このため、従来の構造にあっては、溶接点59を極力車幅方向外側に位置させてスポット溶接を行うなどの対策を講じる必要があり、溶接作業および管理が面倒であった。
また、従来のルーフパネル51の縦壁部56は、小さな寸法で浅く折り曲げられており、サイドボデー54への溶接組付け時において左右方向(車幅方向)位置決め治具を当てるための平面部などが確保されていないので、ルーフパネル51の左右方向の規制が難しく、ルーフパネル51の車体に対する組付け位置の精度を向上させることが困難であった。したがって、従来の構造では、添え板などの部品を用いてルーフパネルの位置決めを行う必要があるため、部品点数および組付け工数が増え、コスト高を招くおそれがあった。
【0005】
本発明はこのような実状に鑑みてなされたものであって、その目的は、外観部の品質保持が容易となり、かつ車体に対する組付け位置の精度向上が図れるルーフパネルの構造を提供することにある。
【0006】
【課題を解決するための手段】
上記従来技術の有する課題を解決するために、本発明においては、車幅方向の両側に縦壁部と該縦壁部の下端から外方へ延びる接合フランジ部が形成され、かつ全体的に上方へ湾曲した緩やかな曲面形状の基本面を有し、該基本面上該基本面から所定の高さで上方に突出し車両前後方向へ延びる複数のビード部が車幅方向に間隔を置いて設けられているルーフパネルの構造において、車幅方向で両側に位置する前記ビード部を前記接合フランジ部の近傍に配置し、前記ビード部の縦壁面前記縦壁部の上端とを前記基本面を介在させずに前記基本面と異なる湾曲面を介して互いに接続し、アウタパネルおよびインナパネルを互いに接合することにより、ルーフレールを空間部分を有する閉断面形状に形成するとともに、前記ルーフパネルに対して車両の側方に配置し、前記アウタパネルは、上部先端を下方および内方へほぼ直角に折り曲げた段差部の略水平面として形成された上端フランジを有し、前記インナパネルは、上部先端を内方へほぼ直角に折り曲げた略水平面として上端フランジが形成されており、下から順に前記ルーフレールの前記インナパネルの上端フランジ、前記アウタパネルの上端フランジおよび前記ルーフパネルの接合フランジ部を重ね合わせてスポット溶接することで前記ルーフパネルを前記ルーフレールに組付け、車両の上下方向で、前記アウタパネルの上部先端が前記基本面よりも高く前記ビード部の上面よりも低く形成されている。
【0007】
また、本発明において、前記湾曲面は、ルーフパネルに形成された上方へ湾曲した緩やかな曲面形状の基本面よりも小さな曲率の曲面に形成されている。
さらに、本発明において、前記ルーフパネルの車両後方側に位置する前記縦壁部には、車両上下方向へ沿って延びる延長壁部が設けられている。
そして、本発明において、前記延長壁部は、曲率の大きい緩やかな曲面形状または平面形状に形成されている。
【0008】
【発明の実施の形態】
以下、本発明を図示の実施の形態に基づいて詳細に説明する。
【0009】
図1〜図8は、本発明に係るルーフパネルの構造の実施の形態を示している。図1および図2に示す如く、自動車1の車体上部には、車体の一部を構成する天井部として組付けるルーフパネル2が設けられている。
このルーフパネル2は、図1〜図5に示す如く、一枚の鋼板をプレス加工などで一体成形することによって形成されており、全体的に上方へ湾曲した緩やかな曲面形状の基本面3、該基本面3上に設けられ、平面視で幅広の長方形に形成された複数本(本実施形態では4本)の凸状ビード部4、サイドボデー5への溶接組付け用の接合フランジ部6、および基本面3と接合フランジ部6をつなぐ縦壁部7によって構成されている。
【0010】
上記凸状ビード部4は、図1〜図4に示す如く、それぞれ基本面3から所定の高さにわたって上方に突出した断面略台形状に形成されており、車両前後方向へ沿って延びていると共に、車幅方向(図中、左右方向)に一定の間隔を置いて設けられ、ルーフパネル2の左右両側に必ず位置するように設定されている。しかも、ルーフパネル2の車幅方向で、左右両側に位置する凸状ビード部4は、接合フランジ部6の近傍に配置されている。このため、凸状ビード部4と接合フランジ部6との間には、基本面3が介在しておらず、ルーフパネル2の車幅方向では隣接する凸状ビード部4の間のみに基本面3が配置されている。
また、凸状ビード部4の左右両側面は、図3および図5に示す如く、縦壁面4a,4bとなっており、これら縦壁面4a,4bは、上部から下部にかけて外方へ向かって徐々に下がっていく傾斜面状に形成されている。しかも、凸状ビード部4の接合フランジ部6に近い側の縦壁面4aは、縦壁部7の上端と湾曲面8を介して互いに接続されている。したがって、凸状ビード部4の縦壁面4aは、大きな曲率の基本面3を介在させることなく、小さな曲率の湾曲面8にて縦壁部7に接続されている。
【0011】
上記接合フランジ部6および上記縦壁部7は、ルーフパネル2の車幅方向の左右両側に設けられている。縦壁部7は、ルーフパネル2の左右両側部を下方へ向かって折り曲げて形成され、接合フランジ部6は、縦壁部7の下端を外方へほぼ直角に折り曲げて形成されており、縦壁部7および接合フランジ部6によって断面略L字状に形成されている。そして、これら縦壁部7と接合フランジ部6との間に位置する部分は、内方へ向かって湾曲した形状の曲面部9として形成されている。
また、上記湾曲面8は、接合フランジ部6等の溶接点10(図4参照)による溶接歪み等を緩和しやすくするため、ルーフパネル2に形成された上方へ湾曲した緩やかな曲面形状の基本面3よりも小さな曲率の曲面に形成されている。
【0012】
しかも、上記ルーフパネル2の車両後方側に位置する縦壁部7には、図2、図6〜図8に示す如く、これを部分的に上方へ向かってL寸法(デザインに影響を及ぼさない寸法)だけ延出させてなる延長壁部7aが車両上下方向へ沿って設けられており、該延長壁部7aの箇所では、縦壁部7が高くなるように形成されている。この延長壁部7aは、車体であるサイドボデー5へのスポット溶接組付け時に、ルーフパネル2の左右方向(車幅方向)の位置決めを行う位置決め治具(左右方向規制治具)11を当接させるために設置されている。そのため、延長壁部7aは、位置決め治具11が確実に当たるように、曲率の大きい緩やかな曲面形状(または平面形状)に形成されている。
【0013】
一方、上記サイドボデー5は、ルーフレールを構成するものであり、アウタパネル12およびインナパネル13の上下端フランジ12a,12b,13a,13bを互いに接合することにより、空間部分を有する閉断面形状に形成されている。このため、アウタパネル12の上端フランジ12aは、上部先端を下方および内方へほぼ直角に折り曲げた段差部の略水平面として形成され、インナパネル13の上端フランジ13aは、上部先端を内方へほぼ直角に折り曲げた略水平面として形成されており、上下一対のスポット溶接ガン14a,14bを用いるスポット溶接時において、上下端フランジ12a,13aの両者が上下に重ね合わせることが可能となっている。
【0014】
本発明の実施形態の構造を有するルーフパネル2をサイドボデー5に組付けるには、図3に示す如く、下から順にサイドボデー5を構成するインナパネル13の上端フランジ13a、アウタパネル12の上端フランジ12aおよびルーフパネル2の接合フランジ部6を重ね合わせ、図7に示す如く、ルーフパネル2の縦壁部7および延長壁部7aに位置決め治具11を当てて、ルーフパネル2の左右方向の位置決め規制を行う。
次いで、上下一対のスポット溶接ガン14a,14bを溶接点10に配置すると共に、これらスポット溶接ガン14a,14bによって溶接点10の重ね合わせ部を挟持する。この状態で、通電してスポット溶接を行えば、ルーフパネル2はサイドボデー5に接合されて組付けられることになる(図4参照)。
【0015】
本発明の実施形態に係るルーフパネル2の構造では、車幅方向の左右両側に接合フランジ部6および縦壁部7を備え、大きな曲率の基本面3の上面に設けられた複数本の凸状ビード部4のうち、車幅方向で左右両側に位置する凸状ビード部4を接合フランジ部6の近傍に配置し、凸状ビード部4の縦壁面4aを縦壁部7の上端と小さな曲率の湾曲面8を介して互いに接続しているため、溶接点10におけるスポット溶接の溶接歪み等が目立ち易い緩やかな曲面の基本面3又は凸状ビード部4の上面に届くまでに、湾曲面8によって緩和されることになり、外観部の品質を容易に保持することができる。また、本実施形態の構造では、ルーフパネル2の車両後方側に位置する縦壁部7に上方へ向かって延出させた延長壁部7aを設けているため、サイドボデー5への溶接組付け時に、位置決め治具11を縦壁部7および延長壁部7aに当てることによって、ルーフパネル2の左右方向の移動を規制して位置決めすることが可能となり、ルーフパネル2の車体に対する組付け位置の精度を上げることができる。
【0016】
以上、本発明の実施の形態につき述べたが、本発明は既述の実施の形態に限定されるものではなく、本発明の技術的思想に基づいて各種の変形および変更が可能である
【0017】
【発明の効果】
上述の如く、本発明に係るルーフパネルの構造は、車幅方向の両側に縦壁部と該縦壁部の下端から外方へ延びる接合フランジ部が形成され、かつ全体的に上方へ湾曲した緩やかな曲面形状の基本面を有し、該基本面上該基本面から所定の高さで上方に突出し車両前後方向へ延びる複数のビード部が車幅方向に間隔を置いて設けられているものであって、車幅方向で両側に位置する前記ビード部を前記接合フランジ部の近傍に配置し、前記ビード部の縦壁面前記縦壁部の上端とを前記基本面を介在させずに前記基本面と異なる湾曲面を介して互いに接続し、アウタパネルおよびインナパネルを互いに接合することにより、ルーフレールを空間部分を有する閉断面形状に形成するとともに、前記ルーフパネルに対して車両の側方に配置し、前記アウタパネルは、上部先端を下方および内方へほぼ直角に折り曲げた段差部の略水平面として形成された上端フランジを有し、前記インナパネルは、上部先端を内方へほぼ直角に折り曲げた略水平面として上端フランジが形成されており、下から順に前記ルーフレールの前記インナパネルの上端フランジ、前記アウタパネルの上端フランジおよび前記ルーフパネルの接合フランジ部を重ね合わせてスポット溶接することで前記ルーフパネルを前記ルーフレールに組付け、車両の上下方向で、前記アウタパネルの上部先端が前記基本面よりも高く前記ビード部の上面よりも低く形成されているので、溶接点による溶接歪み等が湾曲面の存在で目立ちにくくなり、外観部の品質保持が容易となり、車両の商品価値を高めることができる。
【0018】
また、本発明のルーフパネルの構造において、上記湾曲面を上記ルーフパネルに形成された上方へ湾曲した緩やかな曲面形状の基本面よりも小さな曲率の曲面に形成すれば、上記溶接歪み等が目立ち易い緩やかな曲面に届くまでに緩和されることになり、外観品質の更なる向上を図ることができる。
さらに、本発明のルーフパネルの構造において、上記ルーフパネルの車両後方側に位置する上記縦壁部に、車両上下方向へ沿って延びる延長壁部を設ければ、延長壁部が見えにくく、デザイン意匠に悪影響を及ぼすことなく、溶接組付け時における車幅方向の位置決め治具を縦壁部に当て易くなり、かつ別部品を用いなくとも安価にかつ軽量でルーフパネルを位置決めでき、その結果、組付け作業性を向上させることができる。
そして、本発明のルーフパネルの構造において、上記延長壁部を曲率の大きい緩やかな曲面形状または平面形状に形成すれば、ルーフパネルの車幅方向の規制を車幅方向の位置決め治具で確実に行うことが可能となり、ルーフパネルの車体に対する組付け位置の精度向上を図ることができる。
【図面の簡単な説明】
【図1】本発明の実施形態に係るルーフパネルの構造が適用された自動車の一部を示す斜視図である。
【図2】本発明の実施形態に係るルーフパネルを示す斜視図である。
【図3】本発明の実施形態に係るルーフパネルをサイドボデーに組付ける前の状態を示すものであり、図2のA−A線断面図である。
【図4】本発明の実施形態に係るルーフパネルをサイドボデーに組付ける状態を示すものであり、図2のA−A線断面図である。
【図5】図3におけるX部の拡大図である。
【図6】図2におけるY部の拡大図である。
【図7】図6のB−B線断面図である。
【図8】図7におけるZ部の拡大図である。
【図9】従来のルーフパネルを示す斜視図である。
【図10】図9のC−C線断面図である。
【符号の説明】
1 自動車
2 ルーフパネル
3 基本面
4 凸状ビード部
4a,4b 縦壁面
5 サイドボデー
6 接合フランジ部
7 縦壁部
7a 延長壁部
8 湾曲面
9 曲面部
10 溶接点
11 位置決め治具
12 アウタパネル
12a 上端フランジ
13 インナパネル
13a 上端フランジ
14a,14b スポット溶接ガン
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a roof panel that is assembled to a side body of an automobile or the like.
[0002]
[Prior art]
In a car, a roof panel 51 having a shape as shown in FIGS. 9 and 10, for example, is assembled as a ceiling part constituting a part of the vehicle body. The roof panel 51 includes a generally gentle curved basic surface 52, a plurality of convex bead portions 53 provided on the basic surface 52, and a joining flange portion for welding assembly to the side body 54. 55.
The convex bead portions 53 extend in the vehicle front-rear direction and are provided at intervals in the vehicle width direction (left-right direction in the figure). Moreover, the vertical wall part 56 which bent this downward is provided in the both sides of the vehicle width direction of the roof panel 51, and the joining flange part 55 bend | folds the lower end of the vertical wall part 56 at substantially right angle outward. The vertical wall portion 56 and the joining flange portion 55 form a substantially L-shaped cross section. On the other hand, the side body 54 constitutes a roof rail, and is formed in a closed cross-sectional shape by joining the upper and lower end flanges 57a, 57b, 58a, 58b of the outer panel 57 and the inner panel 58 to each other.
[0003]
Therefore, in the roof panel 51, the joint flange portions 55 on both the left and right sides are overlapped with the upper flanges 57a and 58a of the outer panel 57 and the inner panel 58, respectively, and the weld point 59 of this overlapped portion is paired with a pair of upper and lower spot welding guns 60a. , 60b and spot welded to be joined and assembled to the side body 54.
[0004]
[Problems to be solved by the invention]
However, in the structure of the conventional roof panel 51 described above, the gap between the convex bead portions 53 and the joint flange portions 55 on both the left and right sides is wide, and a gently curved basic surface 52 exists between them. Therefore, there is a problem that welding distortion or the like generated by spot welding at the welding point 59 is likely to occur on the adjacent basic surface 52 and it is difficult to maintain the quality of the appearance portion. For this reason, in the conventional structure, it is necessary to take measures such as spot welding by positioning the welding point 59 as far as possible in the vehicle width direction, and welding work and management are troublesome.
In addition, the vertical wall portion 56 of the conventional roof panel 51 is bent with a small size and is shallow, and a flat portion for applying a positioning jig in the left-right direction (vehicle width direction) when welding to the side body 54 is used. Is not secured, it is difficult to restrict the roof panel 51 in the left-right direction, and it is difficult to improve the accuracy of the assembly position of the roof panel 51 with respect to the vehicle body. Therefore, in the conventional structure, since it is necessary to position the roof panel using a component such as an attachment plate, the number of components and the number of assembling steps are increased, which may increase the cost.
[0005]
The present invention has been made in view of such a situation, and an object of the present invention is to provide a structure of a roof panel that makes it easy to maintain the quality of the appearance and improve the accuracy of the assembly position with respect to the vehicle body. is there.
[0006]
[Means for Solving the Problems]
Above to solve the problems of the prior art, in the present invention, the joining flange portion extending from the lower end of the vertical wall portion and said longitudinal wall portion on both sides in the vehicle width direction to the outside are formed, and generally above A plurality of bead portions that protrude upward from the basic surface at a predetermined height and extend in the vehicle front-rear direction at intervals in the vehicle width direction. In the structure of the roof panel, the bead portions located on both sides in the vehicle width direction are arranged in the vicinity of the joint flange portion, and the vertical wall surface of the bead portion and the upper end of the vertical wall portion are connected to the basic surface. through the base surface and different curved surfaces without interposing connected to each other by joining the outer panel and the inner panel together, thereby forming a closed cross section having a space portion of the roof rail, the roof panel The outer panel has an upper end flange formed as a substantially horizontal surface of a stepped portion bent at a substantially right angle downward and inward at the upper end, and the inner panel has an upper end at the upper end. An upper end flange is formed as a substantially horizontal plane that is bent inward at a substantially right angle, and the upper end flange of the inner panel of the roof rail, the upper end flange of the outer panel, and the joining flange portion of the roof panel are overlapped in order from the bottom. The roof panel is assembled to the roof rail by welding, and the upper end of the outer panel is higher than the basic surface and lower than the upper surface of the bead portion in the vertical direction of the vehicle .
[0007]
In the present invention, the curved surface is formed into a curved surface having a smaller curvature than a gently curved basic surface curved upward formed in the roof panel.
In the present invention, the vertical wall portion located on the vehicle rear side of the roof panel is provided with an extension wall portion extending along the vehicle vertical direction.
And in this invention, the said extension wall part is formed in the gentle curved surface shape or plane shape with a large curvature.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on illustrated embodiments.
[0009]
1 to 8 show an embodiment of a roof panel structure according to the present invention. As shown in FIGS. 1 and 2, a roof panel 2 to be assembled as a ceiling portion constituting a part of the vehicle body is provided on the upper body of the automobile 1.
1 to 5, the roof panel 2 is formed by integrally forming a single steel plate by pressing or the like, and has a gently curved basic surface 3 curved upward as a whole. A plurality of (four in this embodiment) convex bead portions 4 provided on the basic surface 3 and formed in a wide rectangular shape in plan view, and a joint flange portion 6 for welding assembly to the side body 5 , And a vertical wall portion 7 that connects the basic surface 3 and the joint flange portion 6.
[0010]
As shown in FIGS. 1 to 4, each of the convex bead portions 4 is formed in a substantially trapezoidal cross section that protrudes upward from the basic surface 3 over a predetermined height, and extends along the vehicle longitudinal direction. At the same time, it is provided at regular intervals in the vehicle width direction (left-right direction in the figure), and is set to be surely positioned on both the left and right sides of the roof panel 2. Moreover, the convex bead portions 4 located on the left and right sides in the vehicle width direction of the roof panel 2 are disposed in the vicinity of the joint flange portion 6. For this reason, the basic surface 3 is not interposed between the convex bead portion 4 and the joint flange portion 6, and the basic surface is provided only between the adjacent convex bead portions 4 in the vehicle width direction of the roof panel 2. 3 is arranged.
Further, the left and right side surfaces of the convex bead portion 4 are vertical wall surfaces 4a and 4b as shown in FIGS. 3 and 5, and these vertical wall surfaces 4a and 4b gradually move outward from the upper part to the lower part. It is formed in the shape of an inclined surface that goes down. Moreover, the vertical wall surface 4 a on the side close to the joining flange portion 6 of the convex bead portion 4 is connected to each other via the upper end of the vertical wall portion 7 and the curved surface 8. Therefore, the vertical wall surface 4a of the convex bead portion 4 is connected to the vertical wall portion 7 by the curved surface 8 having a small curvature without interposing the basic surface 3 having a large curvature.
[0011]
The joining flange portion 6 and the vertical wall portion 7 are provided on the left and right sides of the roof panel 2 in the vehicle width direction. The vertical wall portion 7 is formed by bending the left and right side portions of the roof panel 2 downward, and the joining flange portion 6 is formed by bending the lower end of the vertical wall portion 7 outward substantially at a right angle. The wall portion 7 and the joining flange portion 6 are formed in a substantially L-shaped cross section. And the part located between these vertical wall parts 7 and the joining flange part 6 is formed as the curved surface part 9 of the shape curved toward the inside.
In addition, the curved surface 8 is basically a gently curved surface formed in the roof panel 2 and curved upward so as to ease the welding distortion caused by the welding point 10 (see FIG. 4) of the joint flange portion 6 and the like. The curved surface is smaller in curvature than the surface 3.
[0012]
In addition, as shown in FIGS. 2 and 6 to 8, the vertical wall portion 7 positioned on the vehicle rear side of the roof panel 2 is partially extended upward with an L dimension (does not affect the design). An extension wall portion 7a extending by (dimension) is provided along the vehicle vertical direction, and the vertical wall portion 7 is formed so as to be higher at the location of the extension wall portion 7a. The extension wall portion 7a abuts a positioning jig (left-right direction regulating jig) 11 for positioning the roof panel 2 in the left-right direction (vehicle width direction) when spot welding is attached to the side body 5 that is a vehicle body. It is installed to let you. Therefore, the extension wall portion 7a is formed in a gently curved surface shape (or a planar shape) with a large curvature so that the positioning jig 11 can be surely hit.
[0013]
On the other hand, the side body 5 constitutes a roof rail, and is formed in a closed cross-sectional shape having a space portion by joining the upper and lower end flanges 12a, 12b, 13a, 13b of the outer panel 12 and the inner panel 13 to each other. ing. For this reason, the upper end flange 12a of the outer panel 12 is formed as a substantially horizontal surface of a stepped portion where the upper end is bent at a substantially right angle downward and inward, and the upper end flange 13a of the inner panel 13 is substantially perpendicular to the upper end inward. The upper and lower flanges 12a and 13a can be superposed vertically when spot welding is performed using a pair of upper and lower spot welding guns 14a and 14b.
[0014]
In order to assemble the roof panel 2 having the structure of the embodiment of the present invention to the side body 5, as shown in FIG. 3, the upper end flange 13a of the inner panel 13 and the upper end flange of the outer panel 12 constituting the side body 5 in order from the bottom. 12a and the joining flange portion 6 of the roof panel 2 are overlapped, and a positioning jig 11 is applied to the vertical wall portion 7 and the extension wall portion 7a of the roof panel 2 as shown in FIG. Regulate.
Next, a pair of upper and lower spot welding guns 14a and 14b are arranged at the welding point 10, and the overlapping portion of the welding points 10 is sandwiched between the spot welding guns 14a and 14b. If spot welding is performed by energizing in this state, the roof panel 2 is joined and assembled to the side body 5 (see FIG. 4).
[0015]
In the structure of the roof panel 2 according to the embodiment of the present invention, a plurality of convex shapes are provided on the upper surface of the basic surface 3 having a large curvature, with the joint flange portion 6 and the vertical wall portion 7 on the left and right sides in the vehicle width direction. Among the bead portions 4, the convex bead portions 4 positioned on both the left and right sides in the vehicle width direction are disposed in the vicinity of the joint flange portion 6, and the vertical wall surface 4 a of the convex bead portion 4 has a small curvature with the upper end of the vertical wall portion 7. Are connected to each other via the curved surface 8, so that the curved surface 8 reaches the upper surface of the gently curved basic surface 3 or the convex bead portion 4 where spot welding welding distortion or the like at the welding point 10 is easily noticeable. Therefore, the quality of the appearance part can be easily maintained. Moreover, in the structure of this embodiment, since the extended wall part 7a extended upwards is provided in the vertical wall part 7 located in the vehicle rear side of the roof panel 2, the welding assembly | attachment to the side body 5 is carried out. Sometimes, by positioning the positioning jig 11 against the vertical wall portion 7 and the extension wall portion 7a, the roof panel 2 can be positioned by restricting the movement of the roof panel 2 in the left-right direction. The accuracy can be increased.
[0016]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention .
[0017]
【The invention's effect】
As described above, the structure of the roof panel according to the present invention is formed with the vertical wall portion and the joining flange portion extending outward from the lower end of the vertical wall portion on both sides in the vehicle width direction, and curved upward as a whole. It has a gently curved basic surface, and a plurality of bead portions that protrude upward from the basic surface at a predetermined height and extend in the vehicle longitudinal direction are provided on the basic surface at intervals in the vehicle width direction. The bead portions located on both sides in the vehicle width direction are arranged in the vicinity of the joining flange portion, and the vertical wall surface of the bead portion and the upper end of the vertical wall portion are not interposed with the basic surface. The roof rail is formed in a closed cross-sectional shape having a space portion by connecting the outer panel and the inner panel to each other through a curved surface different from the basic surface, and at the side of the vehicle with respect to the roof panel. Placed and before The outer panel has an upper end flange formed as a substantially horizontal plane of a stepped portion bent at a substantially right angle downward and inward at the upper end, and the inner panel is formed as a substantially horizontal plane where the upper end is bent at a substantially right angle. An upper end flange is formed, and the upper end flange of the inner panel of the roof rail, the upper end flange of the outer panel, and the joint flange portion of the roof panel are overlapped and spot welded in order from the bottom to the roof rail. Since the upper end of the outer panel is formed higher than the basic surface and lower than the upper surface of the bead portion in the vertical direction of the vehicle, welding distortion due to the welding point is less noticeable due to the presence of the curved surface. The quality of the appearance part can be easily maintained, and the commercial value of the vehicle can be increased.
[0018]
Further, in the structure of the roof panel of the present invention, if the curved surface is formed into a curved surface having a curvature smaller than the gently curved basic surface formed on the roof panel, the welding distortion or the like is conspicuous. It will be alleviated before reaching a gentle curved surface, and the appearance quality can be further improved.
Furthermore, in the structure of the roof panel of the present invention, if the extension wall portion extending along the vehicle vertical direction is provided on the vertical wall portion located on the vehicle rear side of the roof panel, the extension wall portion is difficult to see and is designed. Without adversely affecting the design, it is easy to apply the positioning jig in the vehicle width direction during welding assembly to the vertical wall, and the roof panel can be positioned at low cost and light weight without using separate parts. Assembly workability can be improved.
In the structure of the roof panel according to the present invention, if the extended wall portion is formed in a gently curved or flat shape with a large curvature, the vehicle width direction of the roof panel can be reliably controlled with a positioning jig in the vehicle width direction. Therefore, the accuracy of the assembly position of the roof panel with respect to the vehicle body can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a part of an automobile to which a structure of a roof panel according to an embodiment of the present invention is applied.
FIG. 2 is a perspective view showing a roof panel according to an embodiment of the present invention.
3 shows a state before the roof panel according to the embodiment of the present invention is assembled to the side body, and is a cross-sectional view taken along the line AA of FIG.
4 shows a state where the roof panel according to the embodiment of the present invention is assembled to the side body, and is a cross-sectional view taken along line AA of FIG.
FIG. 5 is an enlarged view of a portion X in FIG. 3;
6 is an enlarged view of a Y portion in FIG. 2. FIG.
7 is a cross-sectional view taken along line BB in FIG.
8 is an enlarged view of a portion Z in FIG.
FIG. 9 is a perspective view showing a conventional roof panel.
10 is a cross-sectional view taken along the line CC of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Automobile 2 Roof panel 3 Basic surface 4 Convex bead part 4a, 4b Vertical wall surface 5 Side body 6 Joint flange part 7 Vertical wall part 7a Extension wall part 8 Curved surface 9 Curved surface part 10 Welding point 11 Positioning jig 12 Outer panel 12a Upper end Flange 13 Inner panel 13a Top flanges 14a, 14b Spot welding gun

Claims (4)

車幅方向の両側に縦壁部と該縦壁部の下端から外方へ延びる接合フランジ部が形成され、かつ全体的に上方へ湾曲した緩やかな曲面形状の基本面を有し、該基本面上該基本面から所定の高さで上方に突出し車両前後方向へ延びる複数のビード部が車幅方向に間隔を置いて設けられているルーフパネルの構造において、
車幅方向で両側に位置する前記ビード部を前記接合フランジ部の近傍に配置し、前記ビード部の縦壁面前記縦壁部の上端とを前記基本面を介在させずに前記基本面と異なる湾曲面を介して互いに接続し、アウタパネルおよびインナパネルを互いに接合することにより、ルーフレールを空間部分を有する閉断面形状に形成するとともに、前記ルーフパネルに対して車両の側方に配置し、前記アウタパネルは、上部先端を下方および内方へほぼ直角に折り曲げた段差部の略水平面として形成された上端フランジを有し、前記インナパネルは、上部先端を内方へほぼ直角に折り曲げた略水平面として上端フランジが形成されており、下から順に前記ルーフレールの前記インナパネルの上端フランジ、前記アウタパネルの上端フランジおよび前記ルーフパネルの接合フランジ部を重ね合わせてスポット溶接することで前記ルーフパネルを前記ルーフレールに組付け、車両の上下方向で、前記アウタパネルの上部先端が前記基本面よりも高く前記ビード部の上面よりも低く形成されていることを特徴とするルーフパネルの構造。
A vertical wall portion and joint flange portions extending outwardly from the lower end of the vertical wall portion are formed on both sides in the vehicle width direction, and the base surface has a gently curved basic surface that is curved upward as a whole. In the structure of the roof panel in which a plurality of bead portions protruding upward from the basic surface at a predetermined height and extending in the vehicle front-rear direction are provided at intervals in the vehicle width direction.
The bead portions located on both sides in the vehicle width direction are arranged in the vicinity of the joining flange portion, and the vertical wall surface of the bead portion and the upper end of the vertical wall portion are different from the basic surface without the basic surface interposed therebetween. By connecting the outer panel and the inner panel to each other via a curved surface , the roof rail is formed in a closed cross-sectional shape having a space portion, and is disposed on the side of the vehicle with respect to the roof panel. Has an upper end flange formed as a substantially horizontal plane of a stepped portion bent at a substantially right angle downward and inward, and the inner panel has an upper end as a substantially horizontal plane bent at a substantially right angle toward the upper end. A flange is formed, and the upper end flange of the inner panel of the roof rail, the upper end flange of the outer panel, and the lug in order from the bottom The roof panel is assembled to the roof rail by spot welding by overlapping the joint flange portions of the front panel, and the upper end of the outer panel is higher than the basic surface and lower than the upper surface of the bead portion in the vertical direction of the vehicle. The structure of the roof panel characterized by being formed .
前記湾曲面は、ルーフパネルに形成された上方へ湾曲した緩やかな曲面形状の基本面よりも小さな曲率の曲面に形成されていることを特徴とする請求項1に記載のルーフパネルの構造。The structure of the roof panel according to claim 1, wherein the curved surface is formed in a curved surface having a smaller curvature than a gently curved basic surface curved upward formed in the roof panel. 前記ルーフパネルの車両後方側に位置する前記縦壁部には、車両上下方向へ沿って延びる延長壁部が設けられていることを特徴とする請求項1または2に記載のルーフパネルの構造。The roof panel structure according to claim 1 or 2, wherein an extension wall portion extending in a vehicle vertical direction is provided on the vertical wall portion located on the vehicle rear side of the roof panel. 前記延長壁部は、曲率の大きい緩やかな曲面形状または平面形状に形成されていることを特徴とする請求項3に記載のルーフパネルの構造。The roof panel structure according to claim 3, wherein the extension wall portion is formed in a gently curved or planar shape having a large curvature.
JP2002109920A 2002-04-12 2002-04-12 Roof panel structure Expired - Fee Related JP4120919B2 (en)

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