JP4811179B2 - Body structure around the back door opening - Google Patents

Body structure around the back door opening Download PDF

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JP4811179B2
JP4811179B2 JP2006209705A JP2006209705A JP4811179B2 JP 4811179 B2 JP4811179 B2 JP 4811179B2 JP 2006209705 A JP2006209705 A JP 2006209705A JP 2006209705 A JP2006209705 A JP 2006209705A JP 4811179 B2 JP4811179 B2 JP 4811179B2
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back door
door opening
vehicle
panel
body structure
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JP2008037122A (en
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享史 匂坂
大輔 野村
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Toyota Motor Corp
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Description

本発明は、バックドアにより開閉されるバックドア開口部廻りのボデー構造に関する。   The present invention relates to a body structure around a back door opening that is opened and closed by a back door.

バックドアにより開閉されるバックドア開口部廻りに配置されたリアヘッダ、左右のリアピラー、及びアッパバック等の複数のボデーパネルが、通常のプレス品の場合、該ボデーパネルのアンダーボデーへの組付けは、リアヘッダ、左右のリアピラー、及びアッパバック等の複数のボデーパネルを溶接等で接合してアッセンブリー品にした後、アンダーボデーと一体化することにより行われていた（例えば、特許文献１参照）。   When multiple body panels such as the rear header, left and right rear pillars, and upper back arranged around the back door opening that is opened and closed by the back door are normal press products, the assembly of the body panel to the underbody is A plurality of body panels such as a rear header, left and right rear pillars, and an upper back are joined by welding or the like to form an assembly product, and then integrated with the underbody (see, for example, Patent Document 1).

この場合、ボデーパネル間の接合部に応力が集中し易くなるので、バックドア開口部廻りの捩り剛性が低下する。また、ボデーパネル間の接合部によりバックドア開口部廻りの剛性が低下されるので、バックドア開口部廻りのＮＶ性能（ノイズバイブレーション性能）が低下する。さらに、アッセンブリー品の構成部品の数の多少によっては、アッセンブリー品の精度管理が困難になる。
特開２００２−３３７７３６号公報 In this case, stress tends to concentrate on the joint between the body panels, so that the torsional rigidity around the back door opening is reduced. Moreover, since the rigidity around the back door opening is reduced by the joint between the body panels, the NV performance (noise vibration performance) around the back door opening is reduced. Furthermore, depending on the number of components of the assembly product, it becomes difficult to control the accuracy of the assembly product.
JP 2002-337736 A

本発明は上記事実を考慮し、バックドア開口部廻りの捩り剛性、ＮＶ性能を向上させ、且つ、バックドア開口部廻りに配置されるボデーパネルの精度管理を容易化することを目的とする。   In view of the above facts, the present invention aims to improve the torsional rigidity and NV performance around the back door opening and to facilitate the accuracy control of the body panel arranged around the back door opening.

請求項１に記載のバックドア開口部廻りのボデー構造は、バックドアにより開閉される矩形状のバックドア開口部が形成されたバックドアオープニングパネルと、該バックドアオープニングパネルの側辺であるリアピラー部と、前記バックドアオープニングパネルの車両前端部の両側のセンターピラー部とをＦＲＰで一体成形し、前記バックドアオープニングパネルの下辺であるアッパバックの車両後側の縁辺及び前記リアピラー部の車両後側且つ車幅外側の縁辺に、車両のアンダーボデー側に屈曲したフランジを形成し、車両後側の車幅両端部に壁部が立設され、該壁部の車両後端側の上部に前記フランジを接合するための接合部が形成された前記アンダーボデーに組付けたことを特徴とする。 The body structure around the back door opening according to claim 1 includes a back door opening panel formed with a rectangular back door opening that is opened and closed by the back door , and a rear pillar that is a side of the back door opening panel. And the center pillar portions on both sides of the vehicle front end portion of the back door opening panel are integrally formed with FRP, and the vehicle rear side edge of the upper back, which is the lower side of the back door opening panel, and the vehicle rear side of the rear pillar portion A flange bent toward the underbody side of the vehicle is formed on the side and the outer edge of the vehicle width, and wall portions are erected at both ends of the vehicle width on the rear side of the vehicle. It is assembled to the underbody in which a joint for joining the flange is formed .

請求項１に記載のバックドア開口部廻りのボデー構造では、バックドアにより開閉されるバックドア開口部廻りに配置される複数のボデーパネルが、センターピラー部も含めて、ＦＲＰで一体成形されて車両のアンダーボデーに組付けられる。 In the body structure around the back door opening according to claim 1, a plurality of body panels arranged around the back door opening that is opened and closed by the back door are integrally formed with FRP including the center pillar portion. Installed in the vehicle underbody.

これによって、バックドア開口部廻りに配置される複数のボデーパネルの接合部を無くすことが出来る。従って、バックドア開口部廻りに配置された複数のボデーパネルに入力される荷重がセンターピラー部に分散されるので、バックドア開口部廻りから応力集中箇所を無くすことができ、バックドア開口部廻りの捩り剛性が向上する。また、バックドア開口部廻りの剛性が向上するので、バックドア開口部廻りのＮＶ性能が向上する。また、従来と比較して、バックドア開口部廻りの構成部品の数を削減でき、バックドア開口部廻りに配置されるボデーパネルの精度管理を容易化できる。 As a result, joint portions of a plurality of body panels arranged around the back door opening can be eliminated. Accordingly, since the load input to the plurality of body panels arranged around the back door opening is distributed to the center pillar portion, the stress concentration portion can be eliminated from the back door opening and the back door opening around. Torsional rigidity is improved. Further, since the rigidity around the back door opening is improved, the NV performance around the back door opening is improved. In addition, the number of components around the back door opening can be reduced as compared with the conventional case, and the accuracy management of the body panel arranged around the back door opening can be facilitated.

請求項２に記載のバックドア開口部廻りのボデー構造は、請求項１に記載のバックドア開口部廻りのボデー構造であって、前記接合部が、両側の前記壁部の車両後端部の上側に接合されて車幅方向へ延在する梁状の第１接合部と、前記壁部の車両後端側の上部に形成された凹部である第２接合部とで構成され、前記フランジの内側と嵌合している。 The body structure around the back door opening according to claim 2 is the body structure around the back door opening according to claim 1, wherein the joint portion is provided at the vehicle rear end of the wall portion on both sides. The beam-shaped first joint portion that is joined to the upper side and extends in the vehicle width direction, and the second joint portion that is a recess formed in the upper portion of the wall portion on the vehicle rear end side, Mates with the inside .

請求項３に記載のバックドア開口部廻りのボデー構造は、請求項１又は請求項２に記載のバックドア開口部廻りのボデー構造であって、前記センターピラー部の反バックドアオープニングパネル側の端部が、前記壁部の車両上側端部に接合されている。The body structure around the back door opening according to claim 3 is the body structure around the back door opening according to claim 1 or 2, wherein the center pillar portion is on the side opposite to the back door opening panel. The end is joined to the vehicle upper end of the wall.

以上説明したように、バックドア開口部廻りの捩り剛性、ＮＶ性能を向上させることができ、且つ、バックドア開口部廻りに配置されるボデーパネルの精度管理を容易化できる。   As described above, the torsional rigidity and NV performance around the back door opening can be improved, and the quality control of the body panel arranged around the back door opening can be facilitated.

次に、本発明のバックドア開口部廻りのボデー構造の一実施形態を図１、図２に従って説明する。
なお、図中矢印ＦＲは車両前方方向を、矢印ＵＰは車両上方方向を、矢印ＩＮは車幅内側方向を示す。
図１、図２には、クーペタイプの車体１２の車両後側を示している。図示するように、車体１２の車両後側では、バックドアオープニングパネル１４及びセンターピラー部（Ｂピラー部）３２が、アンダーボデー１６の車両後側の上部に組み付けられている。アンダーボデー１６の車両後側は、車室１８及びトランクルーム２０に跨るフロアパネル２２と、フロアパネル２２の車幅両端部に立設された壁部２４とで構成されている。フロアパネル２２は、車室１８からトランクルーム２０へかけて車幅方向の長さを減少させており、壁部２４は、車室１８とトランクルーム２０との境界において屈曲している。 Next, an embodiment of the body structure around the back door opening according to the present invention will be described with reference to FIGS.
In the figure, the arrow FR indicates the vehicle front direction, the arrow UP indicates the vehicle upward direction, and the arrow IN indicates the vehicle width inside direction.
1 and 2 show the rear side of a coupe-type vehicle body 12. As shown in the figure, on the vehicle rear side of the vehicle body 12, the back door opening panel 14 and the center pillar portion (B pillar portion) 32 are assembled to the upper portion of the underbody 16 on the vehicle rear side. The vehicle rear side of the underbody 16 is composed of a floor panel 22 straddling the vehicle compartment 18 and the trunk room 20 and wall portions 24 erected at both ends of the vehicle width of the floor panel 22. The floor panel 22 reduces the length in the vehicle width direction from the passenger compartment 18 to the trunk room 20, and the wall portion 24 is bent at the boundary between the passenger compartment 18 and the trunk room 20.

また、バックドアオープニングパネル１４は、バックドア（図示省略）により開閉される矩形状のバックドア開口部３０が形成されたＣＦＲＰ（炭素繊維強化樹脂）製のボデーパネルであり、車室１８の車両後側とトランクルーム２０との車両上側に、車両前方から車両後方へかけて車両下側へ傾斜するように配設されている。   The back door opening panel 14 is a body panel made of CFRP (carbon fiber reinforced resin) in which a rectangular back door opening 30 that is opened and closed by a back door (not shown) is formed. On the upper side of the vehicle between the rear side and the trunk room 20, it is arranged so as to incline downward from the front of the vehicle to the rear of the vehicle.

バックドア開口部３０の上辺３０Ａ及び下辺３０Ｂは、車幅方向に沿って延在しており、また、バックドアオープニングパネル１４の上辺であるリアヘッダ１４Ａ及び下辺であるアッパバック１４Ｂも、車幅方向に延在している。また、バックドア開口部３０の車両後側から見て左側の側辺３０Ｃ、右側の側辺３０Ｄは、車両上下方向及び車両前後方向に沿って延在しており、また、バックドアオープニングパネル１４の車両後側から見て左側の側辺であるリアピラー部（Ｃピラー部）１４Ｃ、右側の側辺であるリアピラー部１４Ｄも、車両上下方向及び車両前後方向に沿って延在している。   The upper side 30A and the lower side 30B of the back door opening 30 extend along the vehicle width direction, and the rear header 14A as the upper side of the back door opening panel 14 and the upper back 14B as the lower side also extend in the vehicle width direction. It extends to. Further, the left side 30C and the right side 30D of the back door opening 30 as viewed from the vehicle rear side extend along the vehicle vertical direction and the vehicle front-rear direction, and the back door opening panel 14 The rear pillar portion (C pillar portion) 14C, which is the left side when viewed from the rear side of the vehicle, and the rear pillar portion 14D, which is the right side, also extend along the vehicle vertical direction and the vehicle front-rear direction.

また、バックドア開口部３０廻りには、凹部３４が形成されており、この凹部３４の内側にバックドアが収まるようになっている。また、バックドア開口部３０の周縁部には、車両上側に屈曲したフランジ１４Ｅが形成されており、バックドア開口部３０廻りの剛性が向上されている。   Further, a recess 34 is formed around the back door opening 30, and the back door is accommodated inside the recess 34. In addition, a flange 14E that is bent toward the upper side of the vehicle is formed at the peripheral edge of the back door opening 30 so that the rigidity around the back door opening 30 is improved.

また、アッパバック１４Ｂの車両後側の縁辺、及び、Ｃピラー部１４Ｃ、１４Ｄの車両後側且つ車幅外側の縁辺には、アンダーボデー１６側に屈曲したフランジ１４Ｆが形成されている。一方、壁部２４の車両後端側の上部には、フランジ１４Ｆを接合するための接合部２６が形成されている。この接合部２６は、両側の壁部２４の車両後端部の上側に接合されて車幅方向へ延在する梁状の第１接合部２６Ａと、壁部２４の車両後端側の上部に形成された凹部である第２接合部２６Ｂとで構成されている。   Further, a flange 14F bent toward the underbody 16 is formed on the vehicle rear side edge of the upper back 14B and the vehicle rear side and vehicle width outside edges of the C pillar portions 14C and 14D. On the other hand, a joint portion 26 for joining the flange 14F is formed on the upper portion of the wall portion 24 on the vehicle rear end side. This joint portion 26 is joined to the upper side of the vehicle rear end portion of the wall portions 24 on both sides and extends in the vehicle width direction, and to the upper portion of the wall portion 24 on the vehicle rear end side. It is comprised with the 2nd junction part 26B which is the formed recessed part.

ここで、接合部２６は、フランジ１４Ｆの内側と嵌合するようになっており、接合部２６とフランジ１４Ｆとの間に介在する接着剤、及び、リベットによって、接合部２６とフランジ１４Ｆとが接合されている。   Here, the joint portion 26 is adapted to be fitted to the inside of the flange 14F, and the joint portion 26 and the flange 14F are joined by an adhesive and a rivet interposed between the joint portion 26 and the flange 14F. It is joined.

また、バックドアオープニングパネル１４の車両前端部の両側には、センターピラー部３２が一体で形成されている。センターピラー部３２は、バックドアオープニングパネル１４から車両上下方向及び車幅方向に沿って延在しており、反バックドアオープニングパネル１４側の端部３２Ａを、壁部２４の車両上側端部に接着剤やリベット等により接合されている。   Center pillar portions 32 are integrally formed on both sides of the vehicle front end portion of the back door opening panel 14. The center pillar portion 32 extends from the back door opening panel 14 along the vehicle vertical direction and the vehicle width direction, and the end portion 32A on the side opposite to the back door opening panel 14 is connected to the vehicle upper end portion of the wall portion 24. Bonded with adhesive or rivets.

次に、本実施形態による作用について説明する。   Next, the operation according to this embodiment will be described.

本実施形態では、バックドア開口部３０廻りに配置されるリアヘッダ１４Ａ、アッパバック１４Ｂ、Ｃピラー１４Ｃ、１４Ｄ等の複数のボデーパネルがＣＦＲＰで一体成形されてアンダーボデー１６に組み付けられるので、バックドア開口部３０廻りに配置される複数のボデーパネルから、接合部を無くすことが出来る。   In the present embodiment, since a plurality of body panels such as the rear header 14A, the upper back 14B, the C pillars 14C, and 14D arranged around the back door opening 30 are integrally formed with CFRP and assembled to the underbody 16, the back door The joints can be eliminated from the plurality of body panels arranged around the opening 30.

従って、バックドア開口部３０廻りから応力集中箇所を無くすことができ、バックドア開口部３０廻りの捩り剛性が向上する。また、バックドア開口部３０廻りの剛性が向上するので、バックドア開口部３０廻りのＮＶ性能が向上する。また、従来と比較して、バックドア開口部３０廻りの構成部品の数を削減でき、バックドア開口部３０廻りに配置されるボデーパネルの精度管理を容易化できる。   Accordingly, the stress concentration portion can be eliminated from around the back door opening 30 and the torsional rigidity around the back door opening 30 is improved. Further, since the rigidity around the back door opening 30 is improved, the NV performance around the back door opening 30 is improved. In addition, the number of components around the back door opening 30 can be reduced as compared with the conventional case, and the accuracy management of the body panel arranged around the back door opening 30 can be facilitated.

また、本実施形態では、センターピラー部３２も含めてバックドア開口部３０廻りに配置される複数のボデーパネルがＦＲＰで一体形成されており、バックドア開口部３０廻りに配置されるボデーパネルに入力される荷重がセンターピラー部３２に分散されるので、バックドア開口部３０廻りの捩り剛性がさらに向上する。   Further, in the present embodiment, a plurality of body panels arranged around the back door opening 30 including the center pillar portion 32 are integrally formed of FRP, and the body panel arranged around the back door opening 30 is formed in the body panel. Since the input load is distributed to the center pillar portion 32, the torsional rigidity around the back door opening 30 is further improved.

以上、本発明を特定の実施形態について詳細に説明したが、本発明はかかる実施形態に限定されるものではなく、本発明の範囲内にて他の種々の実施形態が可能であることは当業者にとって明らかである。例えば、本実施形態は、本発明のバックドア開口部構造を囲むパネルをＣＦＲＰ製としたが、ＧＦＲＰ等の他のＦＲＰ製としても良い。   Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It is clear to the contractor. For example, in this embodiment, the panel surrounding the back door opening structure of the present invention is made of CFRP, but may be made of other FRP such as GFRP.

本発明の一実施形態に係るバックドア開口部構造を備える車体の車両後側を示す斜視図である。It is a perspective view which shows the vehicle rear side of a vehicle body provided with the back door opening part structure which concerns on one Embodiment of this invention. 本発明の一実施形態に係るバックドア開口部構造を備える車体の車両後側を示す分解斜視図である。It is a disassembled perspective view which shows the vehicle rear side of a vehicle body provided with the back door opening part structure which concerns on one Embodiment of this invention.

符号の説明Explanation of symbols

１４ バックドアオープニングパネル
１４Ａ リアヘッダ（ボデーパネル）
１４Ｂ アッパバック（ボデーパネル）
１４Ｃ リアピラー部（ボデーパネル）
１４Ｄ リアピラー部（ボデーパネル）
１４Ｆ フランジ
１６ アンダーボデー
２４ 壁部
２６ 接合部
２６Ａ 第１接合部
２６Ｂ 第２接合部
３０ バックドア開口部
３２ センターピラー部
３２Ａ 端部 14 Back door opening panel 14A Rear header (body panel)
14B Upper back (body panel)
14C Rear pillar (body panel)
14D Rear pillar (body panel)
14F flange 16 underbody
24 walls
26 joints
26A first joint
26B 2nd junction part 30 Back door opening part 32 Center pillar part
32A end

Claims (3)

バックドアにより開閉される矩形状のバックドア開口部が形成されたバックドアオープニングパネルと、該バックドアオープニングパネルの側辺であるリアピラー部と、前記バックドアオープニングパネルの車両前端部の両側のセンターピラー部とをＦＲＰで一体成形し、
前記バックドアオープニングパネルの下辺であるアッパバックの車両後側の縁辺及び前記リアピラー部の車両後側且つ車幅外側の縁辺に、車両のアンダーボデー側に屈曲したフランジを形成し、
車両後側の車幅両端部に壁部が立設され、該壁部の車両後端側の上部に前記フランジを接合するための接合部が形成された前記アンダーボデーに組付けたことを特徴とするバックドア開口部廻りのボデー構造。 A back door opening panel formed with a rectangular back door opening that is opened and closed by the back door , a rear pillar that is a side of the back door opening panel, and centers on both sides of the front end of the back door opening panel in the vehicle The pillar part is integrally molded with FRP,
Formed on the vehicle rear side edge of the upper back, which is the lower side of the back door opening panel, and on the vehicle rear side and vehicle width outside edge of the rear pillar portion are bent toward the underbody side of the vehicle,
A wall portion is erected at both ends of the vehicle width on the rear side of the vehicle, and is assembled to the underbody in which a joint portion for joining the flange is formed at an upper portion of the wall portion on the rear end side of the vehicle. Body structure around the back door opening. 前記接合部は、両側の前記壁部の車両後端部の上側に接合されて車幅方向へ延在する梁状の第１接合部と、前記壁部の車両後端側の上部に形成された凹部である第２接合部とで構成され、前記フランジの内側と嵌合している請求項１に記載のバックドア開口部廻りのボデー構造。 The joint portion is formed on a beam-shaped first joint portion that is joined to the upper side of the vehicle rear end portion of the wall portion on both sides and extends in the vehicle width direction, and an upper portion of the wall portion on the vehicle rear end side. 2. The body structure around the back door opening according to claim 1 , wherein the body is formed by a second joint that is a concave portion and is fitted to the inside of the flange . 前記センターピラー部の反バックドアオープニングパネル側の端部は、前記壁部の車両上側端部に接合されている請求項１又は請求項２に記載のバックドア開口部廻りのボデー構造。The body structure around the back door opening according to claim 1 or 2, wherein an end of the center pillar portion on the side opposite to the back door opening panel is joined to a vehicle upper end of the wall portion.
JP2006209705A 2006-08-01 2006-08-01 Body structure around the back door opening Expired - Fee Related JP4811179B2 (en)

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JP5772882B2 (en) 2013-06-19 2015-09-02 トヨタ自動車株式会社 Vehicle back door

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