JP6672951B2 - Body panel joint structure - Google Patents

Body panel joint structure Download PDF

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Publication number
JP6672951B2
JP6672951B2 JP2016065800A JP2016065800A JP6672951B2 JP 6672951 B2 JP6672951 B2 JP 6672951B2 JP 2016065800 A JP2016065800 A JP 2016065800A JP 2016065800 A JP2016065800 A JP 2016065800A JP 6672951 B2 JP6672951 B2 JP 6672951B2
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panel
portion forming
bead portion
top wall
bead
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JP2017177936A (en
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雄一郎 林
雄一郎 林
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Mitsubishi Motors Corp
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Mitsubishi Motors Corp
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Priority to JP2016065800A priority Critical patent/JP6672951B2/en
Priority to BR102017006433-6A priority patent/BR102017006433B1/en
Priority to CN201710197080.8A priority patent/CN107416040B/en
Publication of JP2017177936A publication Critical patent/JP2017177936A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Connection Of Plates (AREA)
  • Resistance Welding (AREA)

Description

本発明は車体パネルの接合構造に関する。   The present invention relates to a joint structure for a vehicle body panel.

特許文献１には、車体パネルの接合部の剛性を確保する車体パネルの接合構造が開示されている。
特許文献１では、フロントフロアパネルとリヤフロアパネルのそれぞれに車幅方向に一定の間隔をおいて車体前後方向に延在するビードを形成する。ビードは、ビードの延在方向と直交する方向において長尺のビードと短尺のビードとを交互に並べることで構成されている。
そして、フロントフロアパネルの長尺のビードとリヤフロアパネルの短尺のビードとが突き合わされ、また、フロントフロアパネルの短尺のビードとリヤフロアパネルの長尺のビードとが突き合わされ、それら長さの異なるビードが直線的に連続するようにフロントパネルの後端部とリヤフロアパネルの前端部を重ね合わせ、ビードの延在方向と直交する方向においてフロントパネルの後端部とリヤフロアパネルの前端部とをスポット溶接する。 Patent Literature 1 discloses a joint structure of a vehicle body panel for securing rigidity of a joint portion of the vehicle body panel.
In Patent Literature 1, a bead is formed on each of a front floor panel and a rear floor panel at predetermined intervals in a vehicle width direction and extends in a vehicle front-rear direction. The bead is configured by alternately arranging long beads and short beads in a direction orthogonal to the extending direction of the beads.
Then, the long bead of the front floor panel and the short bead of the rear floor panel are abutted, and the short bead of the front floor panel and the long bead of the rear floor panel are abutted, and beads having different lengths are used. The rear end of the front panel and the front end of the rear floor panel are overlapped so that they are linearly continuous, and the rear end of the front panel and the front end of the rear floor panel are spot-welded in a direction orthogonal to the extending direction of the beads. I do.

特開平１０−２４８６６号公報JP-A-10-24866

ところで、車体パネルの部位によっては、車体パネルの接合部が他の車体パネルによって覆われる場合がある。この場合は、他の車体パネルに溶接用の作業孔を形成し、溶接用の作業孔を介して車体パネルの接合部に溶接作業を行なう必要がある。
このような場合、上述のようなビードの延在方向と直交する方向においてフロントパネルの後端部とリヤフロアパネルの前端部とをスポット溶接する接合部構造では、溶接箇所の数を充分に確保できない。
溶接箇所の数を充分に確保できない場合は、車体パネルの接合部の剛性が低下し、また、１つの溶接箇所に加わる応力が増加することから車体パネルの接合部の耐久性を確保する上で不利がある。
本発明は、上記事情に鑑みなされたものであり、車体パネルの接合部の溶接箇所の数が限定されていても、車体パネルの接合部の耐久性の向上を図る上で有利な車体パネルの接合構造を提供することを目的とする。 By the way, depending on the part of the vehicle body panel, the joint of the vehicle body panel may be covered by another vehicle body panel. In this case, it is necessary to form a working hole for welding in another vehicle body panel, and to perform welding work on a joint portion of the vehicle body panel through the working hole for welding.
In such a case, in the joint structure in which the rear end of the front panel and the front end of the rear floor panel are spot-welded in a direction orthogonal to the extending direction of the bead as described above, the number of welding locations cannot be sufficiently secured. .
If the number of welds cannot be secured sufficiently, the rigidity of the joints of the vehicle body panel will decrease, and the stress applied to one weld will increase, thus ensuring the durability of the joints of the vehicle body panel. There is a disadvantage.
The present invention has been made in view of the above circumstances, and even when the number of welds at the joint of the vehicle body panel is limited, it is advantageous to improve the durability of the joint of the vehicle body panel. It is intended to provide a joint structure.

上記目的を達成するために、本発明は、２枚のパネルが重ねられスポット溶接により接合される車体パネルの接合構造であって、前記２枚のパネルのうちの一方のパネルで前記重ねられる箇所に、そのパネルの厚さ方向に突出しつつ延在し、細長形状に形成されたビード部が設けられ、前記ビード部は、前記パネルから起立するビード部形成用側壁と、前記ビード部形成用側壁の先端に接続されたビード部形成用頂壁とを含んで構成され、前記ビード部形成用頂壁に前記ビード部の突出方向と同じ向きで前記ビード部形成用頂壁の厚さ方向に突出する台座部が、前記ビード部の延在方向に間隔をおいて１列に並んで複数設けられ、前記台座部は、前記ビード部形成用頂壁から起立する台座部形成用側壁と、前記台座部形成用側壁の先端に接続された台座部形成用頂壁とを含んで構成され、前記２枚のパネルは、前記台座部形成用頂壁と、他方のパネルとが重ねられる箇所でスポット溶接により接合されていることを特徴とする。
また、本発明は、前記２枚のパネルのうちの他方のパネルで前記重ねられる箇所に、前記一方のパネルの前記ビード部の突出方向と同じ向きにビード部が設けられ、前記他方のパネルのビード部は、前記パネルから起立するビード部形成用側壁と、前記ビード部形成用側壁の先端に接続されたビード部形成用頂壁とを含んで構成され、前記２枚のパネルは、前記一方のパネルの前記台座部形成用頂壁と、他方のパネルの前記ビード部形成用頂壁とが重ねられる箇所でスポット溶接により接合されていることを特徴とする。
また、本発明は、前記２枚のパネルのうちの他方のパネルで前記重ねられる箇所に、前記一方のパネルの前記ビード部の突出方向と同じ向きにビード部が設けられ、前記他方のパネルのビード部は、前記パネルから起立するビード部形成用側壁と、前記ビード部形成用側壁の先端に接続されたビード部形成用頂壁とを含んで構成され、前記他方のパネルの前記ビード部形成用頂壁に前記ビード部の突出方向と同じ向きで前記ビード部形成用頂壁の厚さ方向に突出する台座部が設けられ、前記他方のパネルの前記台座部は、前記ビード部形成用頂壁から起立する台座部形成用側壁と、前記台座部形成用側壁の先端に接続された台座部形成用頂壁とを含んで構成され、前記２枚のパネルは、それらパネルのビード部形成用側壁、ビード部形成用頂壁、台座部形成用側壁、台座部形成用頂壁とが重ねられ、前記２枚のパネルの台座部形成用頂壁が重ねられた箇所でスポット溶接により接合されていることを特徴とする。
また、本発明は、前記台座部は、円錐台状を呈していることを特徴とする。 In order to achieve the above object, the present invention provides a joining structure of a vehicle body panel in which two panels are overlapped and joined by spot welding, and a portion where the two panels are overlapped in one of the two panels to, and extend while projecting in the thickness direction of the panel, elongate bead portion formed in a shape is provided, wherein the bead portion includes a bead portion forming a side wall rising from the panel, the side-wall the bead portion formed And a bead portion forming top wall connected to the tip of the bead portion forming top wall. The bead portion forming top wall projects in the thickness direction of the bead portion forming top wall in the same direction as the bead portion projecting direction. A plurality of pedestal portions are provided in a row at intervals in the extending direction of the bead portion, and the pedestal portion includes a pedestal portion forming side wall rising from the bead portion forming top wall; Connect to the tip of the side wall for forming the part And the two panels are joined by spot welding at a place where the pedestal portion forming top wall and the other panel overlap. And
Further, in the present invention, a bead portion is provided at a position where the other panel of the two panels is overlapped with each other in the same direction as a direction in which the bead portion of the one panel projects, and the other panel has a bead portion. The bead portion is configured to include a bead portion forming side wall rising from the panel, and a bead portion forming top wall connected to a tip of the bead portion forming side wall. Wherein the top wall for forming the pedestal portion of the panel and the top wall for forming the bead portion of the other panel are joined by spot welding.
Further, in the present invention, a bead portion is provided at a position where the other panel of the two panels is overlapped with each other in the same direction as a direction in which the bead portion of the one panel projects, and the other panel has a bead portion. The bead portion includes a bead portion forming side wall rising from the panel, and a bead portion forming top wall connected to a tip of the bead portion forming side wall, and the bead portion forming wall of the other panel is formed. A pedestal portion is provided on the top wall for projecting in the thickness direction of the bead portion forming top wall in the same direction as the bead portion projecting direction, and the pedestal portion of the other panel is provided with the bead portion forming top portion. A pedestal portion forming side wall rising from the wall; and a pedestal portion forming top wall connected to the tip of the pedestal portion forming side wall, wherein the two panels are used for forming bead portions of the panels. Top for forming side walls and beads , Base portion forming a side wall, a base portion forming the top wall are overlapped, characterized in that it is joined by spot welding at points pedestal portion forming the top wall of the two panels are stacked.
Further, the invention is characterized in that the pedestal portion has a truncated cone shape.

本発明によれば、パネルにビード部を設けることでパネルの面剛性を向上でき、悪路走行時におけるパネルの接合部のたわみを抑制する上で有利となる。
また、ビード部のビード部形成用頂壁に台座部を設け、この台座部の台座部形成用頂壁の箇所でスポット溶接するので、台座部形成用側壁と台座部形成用頂壁との境である稜線の効果により台座部（台座部形成用頂壁）の周辺の剛性を局所的に向上でき、悪路走行時にパネルの接合部の溶接箇所が受ける応力を緩和する上で有利となる。
したがって、パネルの接合部の溶接箇所の数が限定されていても、パネルの接合部の耐久性の向上を図る上で有利となる。
また、本発明によれば、請求項１の効果を高める上で有利となる。
また、本発明によれば、台座部が円錐台状を呈しているので、どの方向からの荷重の入力に対しても台座部の周辺の剛性を高める上で有利となる。 ADVANTAGE OF THE INVENTION According to this invention, by providing a bead part in a panel, the surface rigidity of a panel can be improved and it becomes advantageous in suppressing the bending of the joint part of a panel at the time of rough road driving | running.
Also, a pedestal portion is provided on the bead portion forming top wall of the bead portion, and spot welding is performed at the pedestal portion forming top wall portion of the pedestal portion, so that the boundary between the pedestal portion forming side wall and the pedestal portion forming top wall is formed. By the effect of the ridge line, the rigidity around the pedestal portion (the pedestal portion forming top wall) can be locally improved, which is advantageous in relieving the stress applied to the welded portion of the panel joint when traveling on a rough road.
Therefore, even if the number of welding portions at the joint portion of the panel is limited, it is advantageous in improving the durability of the joint portion of the panel.
Further , according to the present invention, it is advantageous in enhancing the effect of claim 1.
Further , according to the present invention, since the pedestal portion has a truncated cone shape, it is advantageous in increasing rigidity around the pedestal portion even when a load is input from any direction.

第１の実施の形態に係る車体パネルの接合構造を示す分解斜視図である。FIG. 2 is an exploded perspective view showing a joint structure of the vehicle body panel according to the first embodiment. 第１パネルと第２パネルの接合部を示す斜視図である。It is a perspective view which shows the junction part of a 1st panel and a 2nd panel. 第１パネルと第２パネルの接合部を示す後面図である。FIG. 6 is a rear view showing a joint between the first panel and the second panel. 第１パネルのビード部および台座部を示す斜視図である。It is a perspective view showing a bead part and a pedestal part of the 1st panel. （Ａ）は図４のＡＡ線断面図、（Ｂ）は図４のＢＢ線断面図である。(A) is a sectional view taken along the line AA in FIG. 4, and (B) is a sectional view taken along the line BB in FIG. 第２パネルのビード部および台座部を示す斜視図である。It is a perspective view showing a bead part and a pedestal part of the 2nd panel. （Ａ）は図６のＣＣ線断面図、（Ｂ）は図６のＤＤ線断面図である。7A is a cross-sectional view taken along the line CC in FIG. 6, and FIG. 7B is a cross-sectional view taken along the line DD in FIG. 第１パネルと第２パネルの接合部の断面図であり、（Ａ）は図２のＸＸ線断面図、（Ｂ）は図２のＹＹ線断面図である。It is sectional drawing of the joining part of a 1st panel and a 2nd panel, (A) is XX sectional drawing of FIG. 2, (B) is YY sectional drawing of FIG. 第２の実施の形態における第１パネルと第２パネルの接合部の断面図である。It is sectional drawing of the joining part of the 1st panel and 2nd panel in 2nd Embodiment.

（第１の実施の形態）
以下、本発明の実施の形態について図面を参照して説明する。
なお、以下の図面において、符号ＦＲは車両前方を示し、符号ＵＰは車両上方を示し、符号ＨＬは車幅方向を示す。
まず、車両の後部構造について説明する。
図１、図３に示すように、車両１０の後部には、不図示のリヤゲートによって開閉される開口部１２が形成されている。
開口部１２の下辺に沿って車幅方向に延在する第１パネル（PANEL,RR END INR CTR（パネルリヤエンドインナセンタ））１４が設けられ、第１パネル１４の両端に第２パネル（PILLAR, GATE INR, EXT LWR（ピラーゲートインナエクステンションロア））１６がそれぞれ接合され、それら第２パネル１６は、開口部１２の両側に位置するリヤピラー１３の下部にそれぞれ接合されている。
また、第１パネル１４と第２パネル１６の接合部２の後方を覆うように、第３パネル１８がそれぞれ設けられている。
第３パネル１８は、リヤピラー１３の下部にそれぞれ接合され、リヤゲート開口部12のコーナー部の補強をするものである。
第３パネル１８には、第１パネル１４と第２パネル１６の接合部２に対してスポット溶接を行なうための作業孔１８０２がそれぞれ開口されている。したがって、溶接箇所が作業孔１８０２の内側に限られるため、溶接箇所の数が限定されることになる。
なお、図中、符号Ｗは接合部２における溶接箇所を示す。
本実施の形態では、第１パネル１４と第２パネル１６との接合部２に本発明が適用されている。 (First Embodiment)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the following drawings, reference numeral FR indicates the front of the vehicle, reference UP indicates the upper side of the vehicle, and reference HL indicates the vehicle width direction.
First, the rear structure of the vehicle will be described.
As shown in FIGS. 1 and 3, an opening 12 that is opened and closed by a rear gate (not shown) is formed at a rear portion of the vehicle 10.
A first panel (PANEL, RR END INR CTR (panel rear end inner center)) 14 extending in the vehicle width direction along the lower side of the opening 12 is provided, and second panels (PILLAR, GATE INR, EXT LWR (pillar gate inner extension lower)) 16 are respectively joined, and the second panels 16 are respectively joined to lower portions of rear pillars 13 located on both sides of the opening 12.
Further, third panels 18 are provided so as to cover the rear of the joint 2 between the first panel 14 and the second panel 16.
The third panels 18 are respectively joined to the lower portions of the rear pillars 13 to reinforce corner portions of the rear gate opening 12.
The third panel 18 has working holes 1802 for performing spot welding to the joint 2 between the first panel 14 and the second panel 16. Therefore, the number of welding locations is limited because the welding locations are limited to the inside of working hole 1802.
Note that, in the drawing, reference symbol W indicates a welding location in the joint 2.
In the present embodiment, the present invention is applied to the joint 2 between the first panel 14 and the second panel 16.

本発明の車体パネルの接合構造は、ビード部２０、２４と、台座部２２、２６とを含んで構成されている。
図１から図５に示すように、ビード部２０は、第２パネル１６に重ねられる第１パネル１４の箇所に、その第１パネル１４の厚さ方向に突出しつつ延在形成されている。
図４、図５に示すように、ビード部２０は、第１パネル１４から起立するビード部形成用側壁２００２と、ビード部形成用側壁２００２の先端に接続され第１パネル１４と平行して延在するビード部形成用頂壁２００４とを含んで形成され、細長形状に形成されている。
台座部２２は、ビード部形成用頂壁２００４にビード部２０の突出方向と同じ向きでビード部形成用頂壁２００４の厚さ方向に突出しており、本実施の形態では、ビード部２０の延在方向に間隔をおいて２つ設けられている。
台座部２２は、ビード部形成用頂壁２００４から起立する台座部形成用側壁２２０２と、台座部形成用側壁２２０２の先端に接続されビード部形成用頂壁２００４と平行して延在する台座部形成用頂壁２２０４とを含んで形成され、円錐台状に形成されている。このとき、台座部形成用側壁２２０２とビード部形成用側壁２００２の間には、必ずビード部形成用頂壁２００４が設けられる。このように台座部２２を円錐台状に形成すると、全ての方向からの荷重の入力に対して、台座部２２の周辺の剛性を高める上で有利となる。 The joint structure of a vehicle body panel according to the present invention includes bead portions 20 and 24 and pedestal portions 22 and 26.
As shown in FIGS. 1 to 5, the bead portion 20 is formed so as to extend in the thickness direction of the first panel 14 at a position of the first panel 14 which is overlapped with the second panel 16.
As shown in FIGS. 4 and 5, the bead portion 20 has a bead portion forming side wall 2002 rising from the first panel 14 and a bead portion forming side wall 2002 connected to the tip of the bead portion forming side wall 2002 and extending in parallel with the first panel 14. And the existing bead portion forming top wall 2004, and is formed in an elongated shape.
The pedestal portion 22 protrudes from the bead portion forming top wall 2004 in the thickness direction of the bead portion forming top wall 2004 in the same direction as the bead portion 20 protruding direction. Two are provided at an interval in the existing direction.
The pedestal portion 22 includes a pedestal portion forming side wall 2202 rising from the bead portion forming top wall 2004, and a pedestal portion connected to the tip of the pedestal portion forming side wall 2202 and extending in parallel with the bead portion forming top wall 2004. It is formed including the forming top wall 2204 and is formed in a truncated cone shape. At this time, a bead portion forming top wall 2004 is always provided between the pedestal portion forming side wall 2202 and the bead portion forming side wall 2002. Forming the pedestal portion 22 in the shape of a truncated cone in this manner is advantageous in increasing the rigidity around the pedestal portion 22 with respect to input of loads from all directions.

図１、図６，図７に示すように、第１パネル１４に重ねられる第２パネル１６の箇所に、第１パネル１４のビード部２０の突出方向と同じ向きにビード部２４が設けられている。
第２パネル１６のビード部２４は、第２パネル１６から起立するビード部形成用側壁２４０２と、ビード部形成用側壁２４０２の先端に接続され第２パネル１６と平行して延在するビード部形成用頂壁２４０４とを含んで形成され、細長形状に形成されている。
また、ビード部形成用頂壁２４０４にビード部２４の突出方向と同じ向きでビード部形成用頂壁２４０４の厚さ方向に台座部２６が突出しており、台座部２６はビード部２４の延在方向に沿って延在している。
台座部２６は、ビード部形成用頂壁２４０４から起立する台座部形成用側壁２６０２と、台座部形成用側壁２６０２の先端に接続されビード部形成用頂壁２４０４と平行して延在する台座部形成用頂壁２６０４とを含んで形成され、ビード部２４に沿った細長形状に形成されている。第１パネル１４と同様に、台座部形成用側壁２６０２とビード部形成用側壁２４０２の間には、必ずビード部形成用頂壁２４０４が設けられる。 As shown in FIGS. 1, 6, and 7, a bead portion 24 is provided at the position of the second panel 16 that is superimposed on the first panel 14 in the same direction as the projecting direction of the bead portion 20 of the first panel 14. I have.
The bead portion 24 of the second panel 16 includes a bead portion forming side wall 2402 that rises from the second panel 16 and a bead portion forming portion that is connected to the tip of the bead portion forming side wall 2402 and extends in parallel with the second panel 16. The top wall 2404 is formed to have an elongated shape.
Further, the pedestal portion 26 protrudes from the bead portion forming top wall 2404 in the thickness direction of the bead portion forming top wall 2404 in the same direction as the bead portion 24 protruding direction. Extending along the direction.
The pedestal portion 26 includes a pedestal portion forming side wall 2602 rising from the bead portion forming top wall 2404, and a pedestal portion connected to the tip of the pedestal portion forming side wall 2602 and extending in parallel with the bead portion forming top wall 2404. It is formed to include the forming top wall 2604, and is formed in an elongated shape along the bead portion 24. Similarly to the first panel 14, a bead portion forming top wall 2404 is always provided between the pedestal portion forming side wall 2602 and the bead portion forming side wall 2402.

なお、第１の実施の形態では、組立工程上、第１パネル１４の端部と第２パネル１６の端部とをスライドさせて重ねるため、より詳細には、第２パネル１６のビード部２４の内側に第１パネル１４のビード部２０を合わせてスライドさせるため、第２パネル１６においてビード部２４の長手方向の端部と台座部２６の長手方向の端部は、第２パネル１６の端部において切断されており、したがって、ビード部２４の長手方向の端部と台座部２６の長手方向の端部は開放状に形成されている。第１の実施の形態では、第１パネル１４のビード部２０も第１パネル１４の端部において切断されており、したがって、ビード部２０の長手方向の端部は開放状に形成されている。   In the first embodiment, since the end of the first panel 14 and the end of the second panel 16 are slid and overlapped in the assembling process, the bead portion 24 of the second panel 16 is more specifically described. In order to slide the bead portion 20 of the first panel 14 inside the panel, the longitudinal end of the bead portion 24 and the longitudinal end of the pedestal portion 26 of the second panel 16 are connected to the end of the second panel 16. Therefore, the longitudinal end of the bead portion 24 and the longitudinal end of the pedestal portion 26 are formed open. In the first embodiment, the bead portion 20 of the first panel 14 is also cut at the end of the first panel 14, and therefore, the longitudinal end of the bead portion 20 is formed in an open shape.

図８に示すように、第１、第２パネル１４、１６は、作業孔１８０２内において、第１パネル１４の台座部形成用頂壁２２０４と、第２パネル１６の台座部形成用頂壁２６０４とが重ねられる。
本実施の形態では、図８（Ａ）に示すように、第１パネル１４の端部のビード部形成用頂壁２００４が第２パネル１６のビード部形成用頂壁２４０４に重ねられ、また、図８（Ｂ）に示すように、第１パネル１４のビード部２０の延在方向と直交する方向において第１パネル１４のビード部形成用側壁２００２と第２パネル１６のビード部形成用側壁２４０２とが重ねられる。
そして、重ねられた台座部形成用頂壁２２０４、２６０４がスポット溶接により接合されている。
また、重ねられた台座部形成用頂壁２２０４、２６０４の下方においても、図３に示すように、平坦な第１、第２パネル１４、１６の部分が重ねられスポット溶接により接合されている。
したがって、接合部２は、重ねられた台座部形成用頂壁２２０４、２６０４がスポット溶接により接合された箇所を含んで構成されている。 As shown in FIG. 8, the first and second panels 14 and 16 are provided in a work hole 1802 with a pedestal portion forming top wall 2204 of the first panel 14 and a pedestal portion forming top wall 2604 of the second panel 16. Are superimposed.
In the present embodiment, as shown in FIG. 8A, the bead portion forming top wall 2004 at the end of the first panel 14 is overlapped with the bead portion forming top wall 2404 of the second panel 16, and As shown in FIG. 8B, a bead portion forming side wall 2002 of the first panel 14 and a bead portion forming side wall 2402 of the second panel 16 in a direction orthogonal to the extending direction of the bead portion 20 of the first panel 14. Are superimposed.
The pedestal portion forming top walls 2204 and 2604 are joined by spot welding.
Also, as shown in FIG. 3, the flat first and second panels 14 and 16 are overlapped and joined by spot welding below the pedestal portion forming top walls 2204 and 2604.
Therefore, the joint portion 2 is configured to include a portion where the pedestal portion forming top walls 2204 and 2604 are joined by spot welding.

次に作用効果について説明する。
車両１０の悪路走行時には、車体全体が荷重を受けることで僅かに変形しようとし、第１、第２パネル１４、１６の接合部２は、荷重によって変形して僅かにたわもうとする。
本実施の形態によれば、第１、第２パネル１４、１６にそれぞれビード部２０、２４を設けたので、第１、第２パネル１４、１６の面剛性を向上でき、悪路走行時における第１、第２パネル１４、１６の接合部２のたわみを抑制する上で有利となる。
また、ビード部２０のビード部形成用頂壁２００４に台座部２２を設け、この台座部２２の台座部形成用頂壁２２０４の箇所でスポット溶接するようにしたので、台座部形成用側壁２２０２と台座部形成用頂壁２２０４との境である稜線の効果により台座部２２（台座部形成用頂壁２２０４）の周辺の剛性を局所的に向上でき、悪路走行時に第１、第２パネル１４、１６の接合部２の溶接箇所Ｗが受ける応力を緩和する上で有利となる。
したがって、図３に示すように、第１、第２パネル１４、１６の接合部２の溶接箇所Ｗの数が限定されていても、第１、第２パネル１４、１６の接合部２の耐久性の向上を図る上で有利となる。 Next, the operation and effect will be described.
When the vehicle 10 is traveling on a rough road, the entire vehicle body tends to be slightly deformed by receiving the load, and the joint 2 of the first and second panels 14 and 16 is deformed by the load and slightly bends.
According to the present embodiment, the first and second panels 14 and 16 are provided with the bead portions 20 and 24, respectively, so that the surface stiffness of the first and second panels 14 and 16 can be improved, and when the vehicle travels on a rough road. This is advantageous in suppressing the bending of the joint 2 between the first and second panels 14 and 16.
Further, the pedestal portion 22 is provided on the bead portion forming top wall 2004 of the bead portion 20 and spot welding is performed at the pedestal portion forming top wall 2204 of the pedestal portion 22. The rigidity around the pedestal portion 22 (the pedestal portion forming top wall 2204) can be locally improved by the effect of the ridgeline which is the boundary with the pedestal portion forming top wall 2204, and the first and second panels 14 can be used when traveling on a rough road. , 16 is advantageous in relieving the stress applied to the welding portion W of the joint 2.
Therefore, as shown in FIG. 3, even if the number of welding locations W at the joints 2 of the first and second panels 14 and 16 is limited, the durability of the joints 2 of the first and second panels 14 and 16 can be improved. This is advantageous in improving the performance.

（第２の実施の形態）
次に第２の実施の形態について図９を参照して説明する。図９は第１の実施の形態の図８に対応する断面図である。
第１の実施の形態では、組立工程上、第１パネル１４と第２パネル１６とをスライドさせ第１パネル１４のビード部２０と第２パネル１６のビード部２４とを重ねるようにしたが、第２の実施の形態では、組立工程を、第１パネル１４と第２パネル１６とをそれらパネルの厚さ方向から重ねるようにした。
そのため、第１パネル１４のビード部２０と第２パネル１６のビード部２４とは共に開放された部分を有していない。
すなわち、第２パネル１６に重ねられる第１パネル１４の箇所に、ビード部２０が細長形状に延在形成され、台座部２２がビード部形成用頂壁２００４にビード部２０の延在方向に間隔をおいて２つ円錐台状に設けられている。
また、第１パネル１４に重ねられる第２パネル１６の箇所に、ビード部２４が細長形状に延在形成され、台座部２６がビード部形成用頂壁２４０４にビード部２４の延在方向に間隔をおいて２つ円錐台状に設けられている。このように台座部２２、２４を円錐台状に形成すると、全ての方向からの荷重の入力に対して、台座部２４、２６の周辺の剛性を高める上で有利となる。 (Second embodiment)
Next, a second embodiment will be described with reference to FIG. FIG. 9 is a cross-sectional view corresponding to FIG. 8 of the first embodiment.
In the first embodiment, in the assembling process, the first panel 14 and the second panel 16 are slid so that the bead portion 20 of the first panel 14 and the bead portion 24 of the second panel 16 overlap. In the second embodiment, the assembling process is such that the first panel 14 and the second panel 16 are overlapped from the thickness direction of the panels.
Therefore, the bead portion 20 of the first panel 14 and the bead portion 24 of the second panel 16 do not have open portions.
That is, the bead portion 20 is formed to extend in an elongated shape at the position of the first panel 14 overlapped with the second panel 16, and the pedestal portion 22 is provided on the bead portion forming top wall 2004 in the extending direction of the bead portion 20. Are provided in the shape of two truncated cones.
Further, a bead portion 24 is formed to extend in an elongated shape at a position of the second panel 16 overlapped with the first panel 14, and the pedestal portion 26 is formed on the bead portion forming top wall 2404 in the extending direction of the bead portion 24. Are provided in the shape of two truncated cones. Forming the pedestals 22 and 24 in a truncated cone shape in this manner is advantageous in increasing rigidity around the pedestals 24 and 26 with respect to input of loads from all directions.

第１パネル１４のビード部２０は、第２パネル１６のビード部２４の内側に係合可能に設けられ、第１パネル１４の２つの台座部２２は、第２パネル１６の各台座部２６の内側に係合可能に設けられている。
そして、第１パネル１４のビード部２０は、第２パネル１６のビード部２４の内側に係合され、第１パネル１４の２つの台座部２２は、第２パネル１６の各台座部２６の内側に係合され、第１パネル１４の台座部２２の台座部形成用頂壁２２０４と第２パネル１６の台座部２６の台座部形成用頂壁２６０４とが重ねられスポット溶接により接合されている。 The bead portion 20 of the first panel 14 is provided so as to be engageable inside the bead portion 24 of the second panel 16, and the two pedestal portions 22 of the first panel 14 are connected to the respective pedestal portions 26 of the second panel 16. It is provided to be engageable inside.
The bead portion 20 of the first panel 14 is engaged with the inside of the bead portion 24 of the second panel 16, and the two pedestal portions 22 of the first panel 14 are connected to the inside of each pedestal portion 26 of the second panel 16. And the pedestal portion forming top wall 2204 of the pedestal portion 22 of the first panel 14 and the pedestal portion forming top wall 2604 of the pedestal portion 26 of the second panel 16 are overlapped and joined by spot welding.

第２の実施の形態によれば、第１パネル１４のビード部形成用側壁２００２とビード部形成用頂壁２００４とが、第２パネル１６のビード部形成用側壁２４０２とビード部形成用頂壁２４０４とに重ねられ、第１パネル１４の台座部形成用側壁２２０２と台座部形成用頂壁２２０４とが、第２パネル１６の台座部形成用側壁２６０２と台座部形成用頂壁２６０４とに重ねられるため、第１、第２パネル１４、１６の接合部２の溶接箇所Ｗの数が限定されていても、悪路走行時における第１、第２パネル１４、１６の接合部２のたわみを抑制でき、また、第１、第２パネル１４、１６の接合部２の溶接箇所Ｗが受ける応力を緩和できるため、第１、第２パネル１４、１６の接合部２の耐久性の向上を図る上で有利となる。   According to the second embodiment, the bead portion forming side wall 2002 of the first panel 14 and the bead portion forming top wall 2004 of the second panel 16 are formed by the bead portion forming side wall 2402 and the bead portion forming top wall. 2404, the pedestal portion forming side wall 2202 and the pedestal portion forming top wall 2204 of the first panel 14 overlap with the pedestal portion forming side wall 2602 and the pedestal portion forming top wall 2604 of the second panel 16. Therefore, even if the number of welding portions W of the joints 2 of the first and second panels 14 and 16 is limited, the bending of the joints 2 of the first and second panels 14 and 16 during rough road traveling is reduced. Since the stress applied to the welding portion W of the joint 2 of the first and second panels 14 and 16 can be reduced, the durability of the joint 2 of the first and second panels 14 and 16 can be improved. The above is advantageous.

なお、実施の形態では、第１パネル１４と第２パネル１６の双方にビード部２０、２４および台座部２２、２６を形成した場合について説明したが、第１パネル１４と第２パネル１６の一方にビード部２０および台座部２２を形成すれば、第１パネル１４と第２パネル１６の他方が平坦なパネルであっても、悪路走行時における第１、第２パネル１４、１６の接合部２のたわみを抑制でき、また、第１、第２パネル１４、１６の接合部２の溶接箇所Ｗが受ける応力を緩和でき、第１、第２パネル１４、１６の接合部２の耐久性の向上を図る上で有利となる。   In the embodiment, the case where the bead portions 20 and 24 and the pedestal portions 22 and 26 are formed on both the first panel 14 and the second panel 16 has been described, but one of the first panel 14 and the second panel 16 is provided. If the bead portion 20 and the pedestal portion 22 are formed on the other side, even if the other of the first panel 14 and the second panel 16 is a flat panel, the joint portion between the first and second panels 14 and 16 when traveling on rough roads 2 can be suppressed, the stress applied to the welded portion W of the joint 2 of the first and second panels 14 and 16 can be reduced, and the durability of the joint 2 of the first and second panels 14 and 16 can be reduced. This is advantageous for improvement.

また、第１パネル１４と第２パネル１６の一方にビード部２０および台座部２２を形成し、第１パネル１４と第２パネル１６の他方にビード部２４を形成し、台座部２２の台座部形成用頂壁２２０４とビード部２４のビード部形成用頂壁２４０４とを重ね合わせてスポット溶接しても、悪路走行時における第１、第２パネル１４、１６の接合部２のたわみを抑制でき、また、第１、第２パネル１４、１６の接合部２の溶接箇所Ｗが受ける応力を緩和でき、第１、第２パネル１４、１６の接合部２の耐久性の向上を図る上で有利となる。
しかしながら、第１パネル１４と第２パネル１６の双方にビード部２０、２４および台座部２２、２６を形成すると、悪路走行時における第１、第２パネル１４、１６の接合部２のたわみを抑制し、また、第１、第２パネル１４、１６の接合部２の溶接箇所Ｗが受ける応力を緩和する上でより有利となり、第１、第２パネル１４、１６の接合部２の耐久性の向上を図る上でより有利となる。 A bead portion 20 and a pedestal portion 22 are formed on one of the first panel 14 and the second panel 16, and a bead portion 24 is formed on the other of the first panel 14 and the second panel 16. Even if the forming top wall 2204 and the bead forming top wall 2404 of the bead portion 24 are overlapped and spot-welded, the bending of the joint 2 between the first and second panels 14 and 16 during rough road running is suppressed. In addition, the stress applied to the welding portion W of the joint 2 of the first and second panels 14 and 16 can be reduced, and the durability of the joint 2 of the first and second panels 14 and 16 can be improved. This is advantageous.
However, if the bead portions 20 and 24 and the pedestal portions 22 and 26 are formed on both the first panel 14 and the second panel 16, the bending of the joint 2 between the first and second panels 14 and 16 during rough road traveling is reduced. It is more advantageous in reducing the stress applied to the welding portion W of the joint 2 of the first and second panels 14 and 16, and the durability of the joint 2 of the first and second panels 14 and 16. This is more advantageous in improving the quality.

１０ 車両
１２ 開口部
１４ 第１パネル
１６ 第２パネル
２０ ビード部
２００２ ビード部形成用側壁
２００４ ビード部形成用頂壁
２２ 台座部
２２０２ 台座部形成用側壁
２２０４ 台座部形成用頂壁
２４ ビード部
２４０２ ビード部形成用側壁
２４０４ ビード部形成用頂壁
２６ 台座部
２６０２ 台座部形成用側壁
２６０４ 台座部形成用頂壁 Reference Signs List 10 vehicle 12 opening 14 first panel 16 second panel 20 bead part 2002 bead part forming side wall 2004 bead part forming top wall 22 pedestal part 2202 pedestal part forming side wall 2204 pedestal part forming top wall 24 bead part 2402 bead Portion forming side wall 2404 Bead portion forming top wall 26 Pedestal portion 2602 Pedestal portion forming side wall 2604 Pedestal portion forming top wall

Claims (4)

２枚のパネルが重ねられスポット溶接により接合される車体パネルの接合構造であって、
前記２枚のパネルのうちの一方のパネルで前記重ねられる箇所に、そのパネルの厚さ方向に突出しつつ延在し、細長形状に形成されたビード部が設けられ、
前記ビード部は、前記パネルから起立するビード部形成用側壁と、前記ビード部形成用側壁の先端に接続されたビード部形成用頂壁とを含んで構成され、
前記ビード部形成用頂壁に前記ビード部の突出方向と同じ向きで前記ビード部形成用頂壁の厚さ方向に突出する台座部が、前記ビード部の延在方向に間隔をおいて１列に並んで複数設けられ、
前記台座部は、前記ビード部形成用頂壁から起立する台座部形成用側壁と、前記台座部形成用側壁の先端に接続された台座部形成用頂壁とを含んで構成され、
前記２枚のパネルは、前記台座部形成用頂壁と、他方のパネルとが重ねられる箇所でスポット溶接により接合されている、
ことを特徴とする車体パネルの接合構造。 A joint structure of a vehicle body panel in which two panels are overlapped and joined by spot welding,
Wherein the portion to be overlaid said at one panel of the two panels, and extend while projecting in the thickness direction of the panel, is a bead portion formed in an elongated shape is provided,
The bead portion is configured to include a bead portion forming side wall rising from the panel, and a bead portion forming top wall connected to a tip of the bead portion forming side wall,
A plurality of pedestals protruding in the thickness direction of the bead portion forming top wall in the same direction as the direction in which the bead portions protrude from the bead portion forming top wall are arranged in a row at intervals in the extending direction of the bead portions. Are provided side by side ,
The pedestal portion is configured to include a pedestal portion forming side wall rising from the bead portion forming top wall, and a pedestal portion forming top wall connected to a tip of the pedestal portion forming side wall,
The two panels are joined by spot welding at a place where the pedestal portion forming top wall and the other panel overlap.
A joint structure for a vehicle body panel. 前記２枚のパネルのうちの他方のパネルで前記重ねられる箇所に、前記一方のパネルの前記ビード部の突出方向と同じ向きにビード部が設けられ、
前記他方のパネルのビード部は、前記パネルから起立するビード部形成用側壁と、前記ビード部形成用側壁の先端に接続されたビード部形成用頂壁とを含んで構成され、
前記２枚のパネルは、前記一方のパネルの前記台座部形成用頂壁と、他方のパネルの前記ビード部形成用頂壁とが重ねられる箇所でスポット溶接により接合されている、
ことを特徴とする請求項１記載の車体パネルの接合構造。 A bead portion is provided in the same position as the direction in which the bead portion of the one panel projects,
The bead portion of the other panel is configured to include a bead portion forming side wall rising from the panel, and a bead portion forming top wall connected to a tip of the bead portion forming side wall,
The two panels are joined by spot welding at a location where the pedestal portion forming top wall of the one panel and the bead portion forming top wall of the other panel overlap.
The joint structure for a vehicle body panel according to claim 1, wherein: 前記２枚のパネルのうちの他方のパネルで前記重ねられる箇所に、前記一方のパネルの前記ビード部の突出方向と同じ向きにビード部が設けられ、
前記他方のパネルのビード部は、前記パネルから起立するビード部形成用側壁と、前記ビード部形成用側壁の先端に接続されたビード部形成用頂壁とを含んで構成され、
前記他方のパネルの前記ビード部形成用頂壁に前記ビード部の突出方向と同じ向きで前記ビード部形成用頂壁の厚さ方向に突出する台座部が設けられ、
前記他方のパネルの前記台座部は、前記ビード部形成用頂壁から起立する台座部形成用側壁と、前記台座部形成用側壁の先端に接続された台座部形成用頂壁とを含んで構成され、
前記２枚のパネルは、それらパネルのビード部形成用側壁、ビード部形成用頂壁、台座部形成用側壁、台座部形成用頂壁とが重ねられ、前記２枚のパネルの台座部形成用頂壁が重ねられた箇所でスポット溶接により接合されている、
ことを特徴とする請求項１記載の車体パネルの接合構造。 A bead portion is provided in the same position as the direction in which the bead portion of the one panel projects,
The bead portion of the other panel is configured to include a bead portion forming side wall rising from the panel, and a bead portion forming top wall connected to a tip of the bead portion forming side wall,
A pedestal portion is provided on the bead portion forming top wall of the other panel in the same direction as the bead portion projecting direction in the thickness direction of the bead portion forming top wall,
The pedestal portion of the other panel includes a pedestal portion forming side wall rising from the bead portion forming top wall, and a pedestal portion forming top wall connected to an end of the pedestal portion forming side wall. And
The two panels are overlapped with a bead portion forming side wall, a bead portion forming top wall, a pedestal portion forming side wall, and a pedestal portion forming top wall of the panels. It is joined by spot welding where the top wall is overlapped,
The joint structure for a vehicle body panel according to claim 1, wherein: 前記台座部は、円錐台状を呈している、
ことを特徴とする請求項１から３の何れか１項記載の車体パネルの接合構造。 The pedestal portion has a truncated cone shape,
The joint structure for a vehicle body panel according to any one of claims 1 to 3, wherein:
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