JP2011225190A - Center pillar structure of vehicle - Google Patents

Center pillar structure of vehicle Download PDF

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JP2011225190A
JP2011225190A JP2010099504A JP2010099504A JP2011225190A JP 2011225190 A JP2011225190 A JP 2011225190A JP 2010099504 A JP2010099504 A JP 2010099504A JP 2010099504 A JP2010099504 A JP 2010099504A JP 2011225190 A JP2011225190 A JP 2011225190A
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center pillar
stiffener
arc
vehicle body
shaped bead
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JP5484175B2 (en
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Hitoshi Kato
仁 加藤
Yoshikiyo Tamai
良清 玉井
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Honda Motor Co Ltd
JFE Steel Corp
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Honda Motor Co Ltd
JFE Steel Corp
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Abstract

PROBLEM TO BE SOLVED: To increase the strength of a center pillar with a simple structure.SOLUTION: Horizontal sections of stiffeners 16, 18 sandwiched between a center pillar outer panel 15 and a center pillar inner panel 14 is formed of: a front arc-shaped bead portion 16b and a rear arc-shaped bead portion 16d each protruding from vehicle body front side and vehicle body rear side to the outside of a vehicle body; a front vertical rib portion 18b and a rear vertical rib portion 18d each extending from mutually opposing ends of both the bead portions 16b, 16d toward the inside of the vehicle body; and a bottom wall portion 18c abutted on the center pillar inner panel 14 by connecting both the vertical rib portions 18b, 18d. Thus, while both the vertical rib portions 18b, 18d prevent the center pillar 11 from being crushed to ensure high collision resistance, reductions in the thickness and weight of a material can be achieved. In addition, since each of the front arc-shaped bead portion 16b and the rear arc-shaped bead portion 16d has a small curvature radius with no sharp bent portions, easy press working can be achieved, thereby reducing machining cost.

Description

本発明は、センターピラーアウターパネルとセンターピラーインナーパネルとの間にスチフナを挟んで結合した車両のセンターピラー構造に関する。   The present invention relates to a vehicle center pillar structure in which a stiffener is sandwiched between a center pillar outer panel and a center pillar inner panel.

車両のセンターピラーをアウターパネルおよびインナーパネルを結合して閉断面に構成し、アウターパネルの内面に沿ってアウタースチフナを配置するとともにインナーパネルの内面に沿ってインナースチフナを配置し、アウタースチフナおよびインナースチフナの車体前後方向の中間位置にそれぞれ形成した断面コ字状の突出部を相互に対向させることで、側面衝突時におけるセンターピラーの耐衝突性能を高めたものが、下記特許文献１により公知である。   The center pillar of the vehicle is configured by connecting the outer panel and the inner panel to a closed cross section, the outer stiffener is disposed along the inner surface of the outer panel, and the inner stiffener is disposed along the inner surface of the inner panel. Patent Document 1 below discloses that the collision resistance of the center pillar at the time of a side collision is improved by making the U-shaped protrusions formed at intermediate positions in the longitudinal direction of the stiffener face each other. is there.

特開２００７−３２６３７６号公報JP 2007-326376 A

ところで上記従来のものは、アウタースチフナの突出部およびインナースチフナの突出部が相互に当接せずに隙間を介して対向するため、側面衝突の荷重が加わるとセンターピラーが潰れるように変形してしまい、充分な耐衝突性能が得られない可能性があるだけでなく、アウタースチフナおよびインナースチフナの断面コ字状の突出部が曲率半径の小さい稜線を有するため、そのプレス成形が困難になって加工コストが増加するという問題があった。   By the way, in the above-mentioned conventional one, the protruding portion of the outer stiffener and the protruding portion of the inner stiffener face each other through a gap without contacting each other, so that when the side collision load is applied, the center pillar is deformed so as to be crushed. In addition, there is a possibility that sufficient impact resistance performance may not be obtained, and the outer stiffener and the inner stiffener have a U-shaped projecting portion having a ridge line with a small radius of curvature, which makes press molding difficult. There was a problem that processing cost increased.

本発明は前述の事情に鑑みてなされたもので、簡単な構造でセンターピラーの強度を高めることを目的とする。   The present invention has been made in view of the above circumstances, and an object thereof is to increase the strength of the center pillar with a simple structure.

上記目的を達成するために、請求項１に記載された発明によれば、センターピラーアウターパネルとセンターピラーインナーパネルとの間にスチフナを挟んで結合した車両のセンターピラー構造において、前記スチフナは、車体前側および車体後側からそれぞれ車体外側に突出する前部円弧状ビード部および後部円弧状ビード部と、前記前部円弧状ビード部および前記後部円弧状ビード部の相互に対向する端部からそれぞれ車体内側に向かって延びる前部縦リブ部および後部縦リブ部と、前記前部縦リブ部および前記後部縦リブ部を連結して前記センターピラーインナーパネルに当接する底壁部とで構成されることを特徴とする車両のセンターピラー構造が提案される。   In order to achieve the above object, according to the invention described in claim 1, in the center pillar structure of a vehicle in which a stiffener is sandwiched between a center pillar outer panel and a center pillar inner panel, the stiffener includes: A front arc-shaped bead portion and a rear arc-shaped bead portion protruding from the vehicle body front side and the vehicle body rear side, respectively, and end portions facing each other of the front arc-shaped bead portion and the rear arc-shaped bead portion, respectively. A front vertical rib portion and a rear vertical rib portion that extend toward the inside of the vehicle body, and a bottom wall portion that connects the front vertical rib portion and the rear vertical rib portion and contacts the center pillar inner panel. A vehicle center pillar structure is proposed.

また請求項２に記載された発明によれば、請求項１の構成に加えて、前記底壁部に、シートベルトショルダーアンカーのスライド機構を締結するためのナットを有する補強板を溶接したことを特徴とする車両のセンターピラー構造が提案される。   According to the invention described in claim 2, in addition to the structure of claim 1, a reinforcing plate having a nut for fastening a sliding mechanism of a seat belt shoulder anchor is welded to the bottom wall portion. A characteristic vehicle center pillar structure is proposed.

また請求項３に記載された発明によれば、請求項２の構成に加えて、前記スチフナは車体の窓開口からルーフサイドレールまで上下方向に延び、前記スチフナの上下方向中間部における前記底壁部の車体前後方向の幅は、前記スチフナの上部および下部における前記底壁部の車体前後方向の幅よりも大きいことを特徴とする車両のセンターピラー構造が提案される。   According to the invention described in claim 3, in addition to the structure of claim 2, the stiffener extends in the vertical direction from the window opening of the vehicle body to the roof side rail, and the bottom wall in the intermediate portion in the vertical direction of the stiffener. A vehicle center pillar structure is proposed in which the width in the longitudinal direction of the vehicle body is greater than the width in the longitudinal direction of the bottom wall at the upper and lower portions of the stiffener.

また請求項４に記載された発明によれば、請求項１〜請求項３の何れか１項の構成に加えて、前記スチフナは車体の窓開口からルーフサイドレールまで上下方向に延び、前記スチフナの上下方向中間部における前記前部および後部縦リブ部の高さは、前記スチフナの上部および下部における前記前部および後部縦リブ部の高さよりも低いことを特徴とするセンターピラー構造が提案される。   According to a fourth aspect of the present invention, in addition to the structure of any one of the first to third aspects, the stiffener extends vertically from a window opening of a vehicle body to a roof side rail, and the stiffener A center pillar structure is proposed in which the height of the front and rear vertical rib portions in the middle portion in the vertical direction is lower than the height of the front and rear vertical rib portions in the upper and lower portions of the stiffener. The

また請求項５に記載された発明によれば、請求項１〜請求項４の何れか１項の構成に加えて、前記スチフナは、前記前部円弧状ビード部の前縁および前記後部円弧状ビード部の後縁からの相互に離反する方向に延びる前部フランジ部および後部フランジ部を備え、前記前部フランジ部を前記センターピラーインナーパネルの前縁に結合するとともに前記後部フランジ部を前記センターピラーインナーパネルの後縁に結合することで、前記センターピラーインナーパネルおよび前記スチフナは閉断面を構成することを特徴とする車両のセンターピラー構造が提案される。   According to the invention described in claim 5, in addition to the configuration of any one of claims 1 to 4, the stiffener includes a front edge of the front arcuate bead part and the rear arcuate shape. A front flange portion and a rear flange portion extending in directions away from the rear edge of the bead portion are provided, and the front flange portion is coupled to the front edge of the center pillar inner panel and the rear flange portion is connected to the center. A center pillar structure for a vehicle is proposed in which the center pillar inner panel and the stiffener form a closed cross section by being coupled to the rear edge of the pillar inner panel.

また請求項６に記載された発明によれば、請求項１〜請求項５の何れか１項の構成に加えて、前記スチフナはホットプレス成形により製作されることを特徴とする車両のセンターピラー構造が提案される。   According to a sixth aspect of the present invention, in addition to the structure of any one of the first to fifth aspects, the stiffener is manufactured by hot press molding. A structure is proposed.

尚、実施の形態の第１スチフナ１６および第３スチフナ１８は本発明のスチフナに対応する。   The first stiffener 16 and the third stiffener 18 of the embodiment correspond to the stiffener of the present invention.

請求項１の構成によれば、センターピラーアウターパネルとセンターピラーインナーパネルとの間に挟まれたスチフナを、車体前側および車体後側からそれぞれ車体外側に突出する前部円弧状ビード部および後部円弧状ビード部と、前部円弧状ビード部および後部円弧状ビード部の相互に対向する端部からそれぞれ車体内側に向かって延びる前部縦リブ部および後部縦リブ部と、前部縦リブ部および後部縦リブ部を連結してセンターピラーインナーパネルに当接する底壁部とで構成したので、側面衝突時に前後の縦リブ部でセンターピラーの潰れを防止して高い耐衝突性能を確保しながら、スチフナの材料の厚さを薄くして軽量化を図ることができる。しかも前部円弧状ビード部および後部円弧状ビード部は曲率半径が小さい急激な折り曲げ部が存在しないので、プレス加工が容易になって加工コストが削減される。   According to the configuration of claim 1, the stiffener sandwiched between the center pillar outer panel and the center pillar inner panel includes a front arc-shaped bead portion and a rear circle that protrude outward from the vehicle body front side and vehicle body rear side, respectively. An arc-shaped bead portion, a front vertical rib portion and a rear vertical rib portion that extend inward from the mutually opposing ends of the front arc-shaped bead portion and the rear arc-shaped bead portion, respectively, and a front vertical rib portion; Since it consists of the bottom wall part that connects the rear vertical rib part and contacts the center pillar inner panel, while preventing the center pillar from collapsing at the front and rear vertical rib parts at the time of side collision, ensuring high impact resistance performance, The stiffener material can be made thin to reduce the weight. In addition, since the front arc-shaped bead portion and the rear arc-shaped bead portion do not have a sharp bent portion having a small curvature radius, press working is facilitated and processing cost is reduced.

また請求項２の構成によれば、スチフナの底壁部にシートベルトショルダーアンカーのスライド機構を締結するためのナットを有する補強板を溶接したので、センターピラーにスライド機構を強固に固定することができる。   According to the second aspect of the present invention, since the reinforcing plate having the nut for fastening the slide mechanism of the seat belt shoulder anchor is welded to the bottom wall portion of the stiffener, the slide mechanism can be firmly fixed to the center pillar. it can.

また請求項３の構成によれば、車体の窓開口からルーフサイドレールまで上下方向に延びるスチフナは、上下方向中間部における底壁部の車体前後方向の幅が上部および下部における底壁部の車体前後方向の幅よりも大きいので、スチフナにスライド機構の補強板を溶接するスペースを確保することができる。   According to the third aspect of the present invention, the stiffener extending in the vertical direction from the window opening of the vehicle body to the roof side rail has a width in the vehicle body longitudinal direction of the bottom wall portion in the middle portion in the vertical direction. Since it is larger than the width in the front-rear direction, a space for welding the reinforcing plate of the slide mechanism to the stiffener can be secured.

また請求項４の構成によれば、車体の窓開口からルーフサイドレールまで上下方向に延びるスチフナは、上下方向中間部における縦リブ部の高さが上部および下部における縦リブ部の車体前後方向の高さよりも低いので、側面衝突に対するセンターピラーの強度を確保しながら乗員の頭部の周辺の室内空間の容積を拡大することができる。   According to the fourth aspect of the present invention, the stiffener extending in the vertical direction from the window opening of the vehicle body to the roof side rail has a height of the vertical rib portion in the intermediate portion in the vertical direction in the vehicle longitudinal direction of the vertical rib portion in the upper and lower portions. Since the height is lower than the height, the volume of the indoor space around the occupant's head can be increased while ensuring the strength of the center pillar against side collision.

また請求項５の構成によれば、スチフナの前部および後部円弧状ビード部の前縁および後縁からの相互に離反する方向に延びる前部および後部フランジ部をセンターピラーインナーパネルの前縁および後縁に結合するので、センターピラーインナーパネルおよびスチフナで閉断面を構成してセンターピラーの強度を更に高めることができる。   According to the configuration of claim 5, the front and rear flange portions extending in the direction away from the front edge and the rear edge of the front and rear arc-shaped bead portions of the stiffener are connected to the front edge of the center pillar inner panel and Since it is joined to the rear edge, the center pillar inner panel and the stiffener can form a closed cross section to further increase the strength of the center pillar.

また請求項６の構成によれば、スチフナをホットプレス成形により製作するので、プレス成形時にスチフナの材料の強度を高めることでセンターピラーの強度を更に高めることができる。   According to the sixth aspect of the invention, since the stiffener is manufactured by hot press molding, the strength of the center pillar can be further increased by increasing the strength of the stiffener material during press molding.

自動車の左側のセンターピラーを車体外側の斜め前方から見た斜視図。（第１の実施の形態）The perspective view which looked at the center pillar of the left side of a motor vehicle from the diagonally front outside a vehicle body. (First embodiment) 自動車の左側のセンターピラーを車体内側の斜め後方から見た斜視図。（第１の実施の形態）The perspective view which looked at the center pillar of the left side of a motor vehicle from the diagonally back inside a vehicle body. (First embodiment) 図１の３−３線断面図。（第１の実施の形態）FIG. 3 is a sectional view taken along line 3-3 in FIG. 1. (First embodiment) 図１の３部分解斜視図。（第１の実施の形態）3 is an exploded perspective view of part 3 of FIG. (First embodiment) 図４の４（Ａ）−４（Ａ）線、４（Ｂ）−４（Ｂ）線および４（Ｃ）−４（Ｃ）線 断面図。（第１の実施の形態）4 (A) -4 (A) line, 4 (B) -4 (B) line, and 4 (C) -4 (C) line sectional view of FIG. (First embodiment) 前記図３に対応する図。（第２の実施の形態）The figure corresponding to the said FIG. (Second Embodiment)

以下、図１〜図５に基づいて本発明の第１の実施の形態を説明する。   Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

図１〜図４に示すように、自動車のセンターピラー１１の上端および下端は、ルーフサイドレール１２の前後方向中間部と、サイドシル１３の前後方向中間部とに接続される。センターピラー１１は、車体内側に位置するセンターピラーインナーパネル１４と、車体外側に位置するセンターピラーアウターパネル１５（図１では省略）と、センターピラーインナーパネル１４およびセンターピラーアウターパネル１５間に挟まれた第１スチフナ１６、第２スチフナ１７および第３スチフナ１８とを備え、全体として上下方向に延びる閉断面に構成される。第１〜第３スチフナ１６，１７，１８のうち、第１スチフナ１６および第２スチフナ１７は上下方向に連続してセンターピラーアウターパネル１５側に配置され、第１スチフナ１６に重ね合わされる第３スチフナ１８はセンターピラーインナーパネル１４側に配置される。また第１スチフナ１６および第３スチフナ１８は車体の窓開口を跨いで低い位置まで配置され、第２スチフナ１７は第１スチフナ１６よりも更に低い位置に配置される。   As shown in FIGS. 1 to 4, the upper and lower ends of the center pillar 11 of the automobile are connected to the front-rear direction intermediate part of the roof side rail 12 and the front-rear direction intermediate part of the side sill 13. The center pillar 11 is sandwiched between a center pillar inner panel 14 located inside the vehicle body, a center pillar outer panel 15 (not shown in FIG. 1) located outside the vehicle body, and the center pillar inner panel 14 and the center pillar outer panel 15. The first stiffener 16, the second stiffener 17, and the third stiffener 18 are provided, and are configured in a closed cross section that extends in the vertical direction as a whole. Of the first to third stiffeners 16, 17, 18, the first stiffener 16 and the second stiffener 17 are arranged on the side of the center pillar outer panel 15 continuously in the vertical direction and are overlapped with the first stiffener 16. The stiffener 18 is disposed on the center pillar inner panel 14 side. Further, the first stiffener 16 and the third stiffener 18 are disposed to a lower position across the window opening of the vehicle body, and the second stiffener 17 is disposed at a position lower than the first stiffener 16.

ルーフサイドレール１２は、ルーフサイドレールアウター１９およびルーフサイドレールインナー２０を備え、全体として車体前後方向に延びる閉断面に構成される。サイドシル１３は、サイドシルアウター２１およびサイドシルインナー２２を備え、全体として車体前後方向に延びる閉断面に構成される。センターピラーインナーパネル１４の下端およびセンターピラーアウターパネル１５の下端は重ね合わされてサイドシルアウター２１の外面に結合される。センターピラーインナーパネル１４の上端はルーフサイドレールインナー２０に結合されるとともに、センターピラーアウターパネル１５の上端はルーフサイドレールアウター１９に結合される。   The roof side rail 12 includes a roof side rail outer 19 and a roof side rail inner 20, and is configured as a closed cross section that extends in the longitudinal direction of the vehicle body as a whole. The side sill 13 includes a side sill outer 21 and a side sill inner 22 and has a closed cross section that extends in the longitudinal direction of the vehicle body as a whole. The lower end of the center pillar inner panel 14 and the lower end of the center pillar outer panel 15 are overlapped and joined to the outer surface of the side sill outer 21. The upper end of the center pillar inner panel 14 is coupled to the roof side rail inner 20, and the upper end of the center pillar outer panel 15 is coupled to the roof side rail outer 19.

図３および図４に示すように、金属板材をプレス加工したセンターピラーインナーパネル１４のうち、第１スチフナ１６に対向する上半部は、その前縁に沿って車体後方に延びる前部フランジ部１４ａと、前部フランジ部１４ａの後縁から車幅方向内側に向かって円弧状ないしは半円状に突出する前部円弧状ビード部１４ｂと、前部円弧状ビード部１４ｂの後縁から車体後方に延びる底壁部１４ｃと、底壁部１４ｃの後縁から車幅方向内側に向かって円弧状ないしは半円状に突出する後部円弧状ビード部１４ｄと、後部円弧状ビード部１４ｄの後縁から車体後方に延びる後側フランジ部１４ｅとを備える。   As shown in FIGS. 3 and 4, among the center pillar inner panel 14 formed by pressing a metal plate material, the upper half portion facing the first stiffener 16 is a front flange portion extending rearward of the vehicle body along its front edge. 14a, a front arcuate bead part 14b projecting in an arc shape or semicircular shape from the rear edge of the front flange part 14a toward the inside in the vehicle width direction, and the rear edge of the vehicle body from the rear edge of the front arcuate bead part 14b A bottom wall portion 14c extending inward, a rear arc-shaped bead portion 14d projecting in an arc shape or semicircular shape from the rear edge of the bottom wall portion 14c toward the inner side in the vehicle width direction, and a rear edge of the rear arc-shaped bead portion 14d And a rear flange portion 14e extending rearward of the vehicle body.

金属板材をプレス加工した第１スチフナ１６は、その前縁に沿って車体後方に延びる前部フランジ部１６ａと、前部フランジ部１６ａの後縁からセンターピラーアウターパネル１５側に向かって円弧状ないしは半円状に突出する前部円弧状ビード部１６ｂと、前部円弧状ビード部１６ｂの後縁から車体後方に延びる底壁部１６ｃと、底壁部１６ｃの後縁からセンターピラーアウターパネル１５側に向かって円弧状ないしは半円状に突出する後部円弧状ビード部１６ｄと、後部円弧状ビード部１６ｄの後縁から車体後方に延びる後側フランジ部１６ｅとを備える。   The first stiffener 16 formed by pressing a metal plate material has a front flange portion 16a extending rearward of the vehicle body along the front edge thereof, and an arc shape or a shape extending from the rear edge of the front flange portion 16a toward the center pillar outer panel 15 side. A front arc-shaped bead portion 16b projecting in a semicircular shape, a bottom wall portion 16c extending rearward from the rear edge of the front arc-shaped bead portion 16b, and the center pillar outer panel 15 side from the rear edge of the bottom wall portion 16c A rear arc-shaped bead portion 16d projecting in an arc shape or semicircular shape toward the rear, and a rear flange portion 16e extending rearward from the rear edge of the rear arc-shaped bead portion 16d.

金属板材をプレス加工した第３スチフナ１８は、上下方向の長さが第１スチフナ１６と略同じ長さで車体前後方向の幅が第１スチフナ１６よりも小さい部材であって、その前縁に沿って第１スチフナ１６側に向かって円弧状ないしは半円状に突出する前部円弧状ビード部１８ａと、前部円弧状ビード部１８ａの後縁からセンターピラーインナーパネル１４に向かって延びる前部縦リブ部１８ｂと、前部縦リブ部１８ｂの左右方向内端から車体後方に延びる底壁部１８ｃと、底壁部１８ｃの後縁から第１スチフナ１６に向かって延びる後部縦リブ部１８ｄと、後部縦リブ部１８ｄの左右方向外端から第１スチフナ１６側に向かって円弧状ないしは半円状に突出する後部円弧状ビード部１８ｅとを備える。   The third stiffener 18 formed by pressing a metal plate is a member having a length in the vertical direction substantially the same as that of the first stiffener 16 and a width in the longitudinal direction of the vehicle body that is smaller than that of the first stiffener 16. A front arc-shaped bead portion 18a projecting in a circular arc shape or semicircular shape along the first stiffener 16 side, and a front portion extending from the rear edge of the front arc-shaped bead portion 18a toward the center pillar inner panel 14 A vertical rib portion 18b, a bottom wall portion 18c extending rearward of the vehicle body from the left and right inner ends of the front vertical rib portion 18b, and a rear vertical rib portion 18d extending from the rear edge of the bottom wall portion 18c toward the first stiffener 16; The rear vertical rib portion 18d includes a rear arc-shaped bead portion 18e protruding in an arc shape or a semicircular shape from the left and right outer ends of the rear vertical rib portion 18d toward the first stiffener 16 side.

第３スチフナ１８は前部および後部縦リブ部１８ｂ，１８ｄの強度が要求されるため、ホットプレス成形により第１、第２スチフナ１６，１７よりも高強度に形成される。ホットプレス成形とは、素材をプレス成形前に８５０〜９００°Ｃ程度の高温に加熱し、素材の強度を軟鋼と同じ程度まで軟化させた状態でプレス成形を行い、プレス成形と同時に成形型内で急冷、焼き入れをすることにより、成形後の製品の引張強度を１５００ＭＰａ程度以上まで高めるとともに従来の高強度鋼板では成形できなかったような形状の部品を製作することができる成形方法である。   The third stiffener 18 is formed with higher strength than the first and second stiffeners 16 and 17 by hot press molding because the strength of the front and rear vertical rib portions 18b and 18d is required. Hot press molding is a process in which the material is heated to a high temperature of about 850 to 900 ° C. before press molding and the strength of the material is softened to the same level as that of mild steel. In this molding method, by rapidly cooling and quenching, the tensile strength of the molded product is increased to about 1500 MPa or more, and a part having a shape that cannot be formed by a conventional high-strength steel sheet is produced.

センターピラーインナーパネル１４の前部フランジ部１４ａおよび後部フランジ部１４ｅは、それぞれセンターピラーアウターパネル１５の前部フランジ部１５ａおよび後部フランジ１５ｂと、第１スチフナ１６の前部フランジ部１６ａおよび後部フランジ部１６ｅとに溶接ｗ１…により結合され、センターピラーインナーパネル１４およびセンターピラーアウターパネル１５は閉断面を構成する。第３スチフナ１８の前部円弧状ビード部１８ａおよび後部円弧状ビード部１８ｅは、第１スチフナ１６の前部円弧状ビード部１６ｂおよび後部円弧状ビード部１６ｄの内面にそれぞれ当接し、溶接ｗ２…により結合される。また第３スチフナ１８の底壁部１８ｃはセンターピラーインナーパネル１４の底壁部１４ｃの内面に当接し、溶接ｗ３…により結合される。   The front flange portion 14a and the rear flange portion 14e of the center pillar inner panel 14 are respectively the front flange portion 15a and the rear flange 15b of the center pillar outer panel 15, and the front flange portion 16a and the rear flange portion of the first stiffener 16. The center pillar inner panel 14 and the center pillar outer panel 15 form a closed cross section. The front arc-shaped bead portion 18a and the rear arc-shaped bead portion 18e of the third stiffener 18 are in contact with the inner surfaces of the front arc-shaped bead portion 16b and the rear arc-shaped bead portion 16d of the first stiffener 16, respectively. Are combined. Further, the bottom wall portion 18c of the third stiffener 18 abuts on the inner surface of the bottom wall portion 14c of the center pillar inner panel 14 and is joined by welding w3.

図４および図５から明らかなように、第３スチフナ１８の前部縦リブ部１８ｂおよび後部縦リブ部１８ｄの高さ（深さ）Ｈは、第３スチフナ１８の上下両端側で高く（図５（Ａ）、（Ｃ）参照）、第３スチフナ１８の上下方向中間部で低くなっている（図５（Ｂ）参照）。また第３スチフナ１８の底壁部１８ｃの前後方向の幅Ｗは、第３スチフナ１８の上下両端側で小さく（図５（Ａ）、（Ｃ）参照）、第３スチフナ１８の上下方向中間部で大きくなっている（図５（Ｂ）参照）。   As is apparent from FIGS. 4 and 5, the height (depth) H of the front vertical rib portion 18b and the rear vertical rib portion 18d of the third stiffener 18 is high at the upper and lower end sides of the third stiffener 18 (see FIG. 5 (A), (C)), and is lowered at the middle portion in the vertical direction of the third stiffener 18 (see FIG. 5 (B)). Further, the width W in the front-rear direction of the bottom wall portion 18c of the third stiffener 18 is small at both the upper and lower end sides of the third stiffener 18 (see FIGS. 5A and 5C), and the middle portion of the third stiffener 18 in the vertical direction. (See FIG. 5B).

図３から明らかなように、第３スチフナ１８の上下方向中間の幅広になった底壁部１８ｃの第１スチフナ１６側の側面に、ナット２３…を備える補強板２４が溶接される。シートベルトショルダーアンカー２５を上下摺動自在に支持するスライド機構２６はセンターピラーインナーパネル１４の底壁部１４ｃの内面に当接し、センターピラーインナーパネル１４の底壁部１４ｃと、第３スチフナ１８の底壁部１８ｃと、補強板２４とを貫通してナット２３…に螺合するボルト２７…で締結される。センターピラーインナーパネル１４はピラーガーニッシュ２８により覆われ、シートベルトショルダーアンカー２５はピラーガーニッシュ２８に形成したスリット２８ａを介して車室内に露出する。   As is clear from FIG. 3, a reinforcing plate 24 including nuts 23 is welded to the side surface on the first stiffener 16 side of the bottom wall portion 18 c that is wide in the middle in the vertical direction of the third stiffener 18. A slide mechanism 26 that supports the seat belt shoulder anchor 25 slidably up and down abuts on the inner surface of the bottom wall portion 14 c of the center pillar inner panel 14, and the bottom wall portion 14 c of the center pillar inner panel 14 and the third stiffener 18. The bottom wall 18c and the reinforcing plate 24 are fastened with bolts 27 that are threaded into the nuts 23. The center pillar inner panel 14 is covered with a pillar garnish 28, and the seat belt shoulder anchor 25 is exposed to the vehicle interior via a slit 28 a formed in the pillar garnish 28.

以上のように、本実施の形態によれば、センターピラーインナーパネル１４およびセンターピラーアウターパネル１５間に挟まれた第１スチフナ１６および第３スチフナ１８が、車体前側および車体後側からそれぞれ車体外側に突出する前部円弧状ビード部１６ｂ，１８ａおよび後部円弧状ビード部１６ｄ，１８ｅと、第３スチフナ１８の前部円弧状ビード部１８ａおよび後部円弧状ビード部１８ｅの相互に対向する端部からそれぞれ車体内側に向かって延びる前部縦リブ部１８ｂおよび後部縦リブ部１８ｄと、前部縦リブ部１８ｂおよび後部縦リブ部１８ｄを連結してセンターピラーインナーパネル１４に当接する底壁部１８ｃとを備えるので、側面衝突時に前部および後部縦リブ部１８ｂ，１８ｄでセンターピラー１１の潰れを防止して高い耐衝突性能を確保しながら、第１、第３スチフナ１６，１８の材料の厚さを薄くして軽量化を図ることができる。しかも前部円弧状ビード部１６ｂ，１８ａおよび後部円弧状ビード部１６ｄ，１８ｅは曲率半径が小さい急激な折り曲げ部が存在しないので、プレス加工が容易になって加工コストが削減される。   As described above, according to the present embodiment, the first stiffener 16 and the third stiffener 18 sandwiched between the center pillar inner panel 14 and the center pillar outer panel 15 are respectively connected to the vehicle body outer side from the vehicle body front side and vehicle body rear side. The front arc-shaped bead portions 16b and 18a and the rear arc-shaped bead portions 16d and 18e projecting from each other, and the front arc-shaped bead portion 18a and the rear arc-shaped bead portion 18e of the third stiffener 18 from mutually facing ends. A front vertical rib portion 18b and a rear vertical rib portion 18d that extend toward the inside of the vehicle body, and a bottom wall portion 18c that contacts the center pillar inner panel 14 by connecting the front vertical rib portion 18b and the rear vertical rib portion 18d. The center pillar 11 is prevented from being crushed by the front and rear vertical rib portions 18b and 18d at the time of a side collision. While securing crashworthiness performance had, it is possible to reduce the weight of the first, by reducing the thickness of the material of the third stiffener 16. In addition, since the front arc-shaped bead portions 16b and 18a and the rear arc-shaped bead portions 16d and 18e do not have a sharp bent portion having a small radius of curvature, press working is facilitated and processing cost is reduced.

また第３スチフナ１８の底壁部１８ｃにシートベルトショルダーアンカー２５のスライド機構２６を締結するためのナット２３を有する補強板２４を溶接したので、センターピラー１１にスライド機構２６を強固に固定することができる。その際に、車体の窓開口からルーフサイドレール１２まで上下方向に延びる第３スチフナ１８は、上下方向中間部における底壁部１８ｃの車体前後方向の幅Ｗが上部および下部における底壁部１８ｃの車体前後方向の幅Ｗよりも大きいので、スライド機構２６の補強板２４を溶接するスペースを確保することができる。しかも第３スチフナ１８は、上下方向中間部における前部および後部縦リブ部１８ｂ，１８ｄの高Ｈさが上部および下部における前部および後部縦リブ部１８ｂ，１８ｄ高さＨよりも低いので、側面衝突に対するセンターピラー１１の強度を確保しながら乗員の頭部の周辺の室内空間の容積を拡大することができる。   Further, since the reinforcing plate 24 having the nut 23 for fastening the slide mechanism 26 of the seat belt shoulder anchor 25 is welded to the bottom wall portion 18c of the third stiffener 18, the slide mechanism 26 is firmly fixed to the center pillar 11. Can do. At that time, the third stiffener 18 extending in the vertical direction from the window opening of the vehicle body to the roof side rail 12 has a width W in the vehicle longitudinal direction of the bottom wall portion 18c in the middle portion in the vertical direction of the bottom wall portion 18c in the upper and lower portions. Since it is larger than the width W in the longitudinal direction of the vehicle body, a space for welding the reinforcing plate 24 of the slide mechanism 26 can be secured. Moreover, the third stiffener 18 has side surfaces because the height H of the front and rear vertical rib portions 18b, 18d at the middle portion in the vertical direction is lower than the height H of the front and rear vertical rib portions 18b, 18d at the upper and lower portions. The volume of the indoor space around the head of the occupant can be increased while ensuring the strength of the center pillar 11 against the collision.

また第１スチフナ１６の前部および後部円弧状ビード部１６ｂ，１６ｄの前縁および後縁からの相互に離反する方向に延びる前部および後部フランジ部１６ａ，１６ｅをセンターピラーインナーパネル１４の前部フランジ部１４ａおよび後部フランジ部１４ｅに結合するので、センターピラーインナーパネル１４および第１スチフナ１６で閉断面を構成してセンターピラー１１の強度を更に高めることができる。   Further, the front and rear flange portions 16a and 16e extending in the direction away from the front and rear edges of the front and rear arc-shaped bead portions 16b and 16d of the first stiffener 16 are connected to the front portion of the center pillar inner panel 14. Since it couple | bonds with the flange part 14a and the rear part flange part 14e, the center pillar inner panel 14 and the 1st stiffener 16 can comprise a closed cross section, and the intensity | strength of the center pillar 11 can further be raised.

また第３スチフナ１８を設けることでセンターピラー１１の上半部の剛性を特に高めたので、車両の側面衝突時に乗員の胸部や頭部の高さあるセンターピラー１１の上半部の変形を抑制して乗員の保護機能を高めることができる。   In addition, by providing the third stiffener 18, the rigidity of the upper half of the center pillar 11 is particularly enhanced, so that deformation of the upper half of the center pillar 11 with the chest and head height of the occupant during a side collision of the vehicle is suppressed. Thus, the passenger's protection function can be enhanced.

次に、図６に基づいて本発明の第２の実施の形態を説明する。   Next, a second embodiment of the present invention will be described with reference to FIG.

第２の実施の形態は、第３スチフナ１８を第１スチフナ１６と一体化して部品点数の削減を図ったものである。即ち、第２の実施の形態の第１スチフナ１６は、第１の実施の形態の第１スチフナ１６の底壁部１６ｃの代わりに、前部縦リブ部１６ｆ、底壁部１６ｇおよび後部縦リブ部１６ｈを設けたものであり、底壁部１６ｇがセンターピラーインナーパネル１４の底壁部１４ｃに当接して溶接ｗ３…される。   In the second embodiment, the third stiffener 18 is integrated with the first stiffener 16 to reduce the number of parts. That is, the first stiffener 16 of the second embodiment has a front vertical rib portion 16f, a bottom wall portion 16g, and a rear vertical rib instead of the bottom wall portion 16c of the first stiffener 16 of the first embodiment. A portion 16h is provided, and the bottom wall portion 16g contacts the bottom wall portion 14c of the center pillar inner panel 14 and is welded w3.

この第２の実施の形態によれば、第３スチフナ１８を廃止した分だけ部品点数を削減しながら、センターピラー１１の強度を第１の実施の形態と同様に高めることができる。   According to the second embodiment, the strength of the center pillar 11 can be increased similarly to the first embodiment while reducing the number of parts by the amount that the third stiffener 18 is eliminated.

以上、本発明の実施の形態を説明したが、本発明はその要旨を逸脱しない範囲で種々の設計変更を行うことが可能である。   The embodiments of the present invention have been described above, but various design changes can be made without departing from the scope of the present invention.

例えば、実施の形態では第３スチフナ１８の前部円弧状ビード部１８ａおよび後部円弧状ビード部１８ｅを、第１スチフナ１６の前部円弧状ビード部１６ｂおよび後部円弧状ビード部１６ｄの内面にそれぞれ当接させて溶接ｗ２…により結合し、第３スチフナ１８の底壁部１８ｃをセンターピラーインナーパネル１４の底壁部１４ｃの内面に当接させて溶接ｗ３…により結合しているが、前記溶接ｗ２…および前記溶接ｗ３…の一方を省略して突き合わせに変更することができ、また前記溶接ｗ３…をボルト締めに変更することができる。   For example, in the embodiment, the front arc-shaped bead portion 18a and the rear arc-shaped bead portion 18e of the third stiffener 18 are respectively disposed on the inner surfaces of the front arc-shaped bead portion 16b and the rear arc-shaped bead portion 16d of the first stiffener 16. The bottom wall portion 18c of the third stiffener 18 is brought into contact with the inner surface of the bottom wall portion 14c of the center pillar inner panel 14 and is joined by the welding w3. One of w2... and the welding w3... can be omitted and changed to a butt, and the welding w3.

またセンターピラーインナーパネル１４の前部円弧状ビード部１４ｂおよび後部円弧状ビード部１４ｄと、第１スチフナ１６の前部円弧状ビード部１６ｂおよび後部円弧状ビード部１６ｄと、第３スチフナ１８の前部円弧状ビード部１８ａおよび後部円弧状ビード部１８ｅとは、厳密な意味での円弧状あるいは半円状である必要はなく、急激に屈曲する角部を持たずに滑らかに湾曲していれば良い。   Further, the front arc-shaped bead portion 14 b and the rear arc-shaped bead portion 14 d of the center pillar inner panel 14, the front arc-shaped bead portion 16 b and the rear arc-shaped bead portion 16 d of the first stiffener 16, and the front of the third stiffener 18. The arc-shaped bead portion 18a and the rear arc-shaped bead portion 18e do not need to be arc-shaped or semicircular in a strict sense, and may be smoothly curved without having sharply bent corner portions. good.

またスチフナの長さに関しては、第３スチフナ１８を第１スチフナ１６よりも長くして第２スチフナ１７に跨がって配置しても良い。   Further, regarding the length of the stiffener, the third stiffener 18 may be longer than the first stiffener 16 and may be disposed across the second stiffener 17.

またホットプレス成形に関しては、成形後の製品の引張強度を１９００ＭＰａ程度まで高めても良い。   Regarding hot press molding, the tensile strength of the molded product may be increased to about 1900 MPa.

１２ ルーフサイドレール
１４ センターピラーインナーパネル
１５ センターピラーアウターパネル
１６ 第１スチフナ（スチフナ）
１６ａ 前部フランジ部
１６ｂ 前部円弧状ビード部
１６ｄ 後部円弧状ビード部
１６ｅ 後部フランジ部
１６ｆ 前部縦リブ部
１６ｇ 底壁部
１６ｈ 後部縦リブ部
１８ 第３スチフナ（スチフナ）
１８ａ 前部円弧状ビード部
１８ｂ 前部縦リブ部
１８ｃ 底壁部
１８ｄ 後部縦リブ部
１８ｅ 後部円弧状ビード部
２３ ナット
２４ 補強板
２５ シートベルトショルダーアンカー
２６ スライド機構
Ｈ 前部および後部縦リブ部の高さ
Ｗ 底壁部の車体前後方向の幅 12 roof side rail 14 center pillar inner panel 15 center pillar outer panel 16 first stiffener (stiffener)
16a Front flange portion 16b Front arc-shaped bead portion 16d Rear arc-shaped bead portion 16e Rear flange portion 16f Front vertical rib portion 16g Bottom wall portion 16h Rear vertical rib portion 18 Third stiffener (stiffener)
18a Front arc-shaped bead portion 18b Front vertical rib portion 18c Bottom wall portion 18d Rear vertical rib portion 18e Rear arc-shaped bead portion 23 Nut 24 Reinforcement plate 25 Seat belt shoulder anchor 26 Slide mechanism H Front and rear vertical rib portions Height W The width of the bottom wall in the longitudinal direction

Claims (6)

センターピラーアウターパネルとセンターピラーインナーパネルとの間にスチフナを挟んで結合した車両のセンターピラー構造において、
前記スチフナは、
車体前側および車体後側からそれぞれ車体外側に突出する前部円弧状ビード部および後部円弧状ビード部と、
前記前部円弧状ビード部および前記後部円弧状ビード部の相互に対向する端部からそれぞれ車体内側に向かって延びる前部縦リブ部および後部縦リブ部と、
前記前部縦リブ部および前記後部縦リブ部を連結して前記センターピラーインナーパネルに当接する底壁部とで構成されることを特徴とする車両のセンターピラー構造。 In the center pillar structure of the vehicle that is joined with the stiffener sandwiched between the center pillar outer panel and the center pillar inner panel,
The stiffener is
A front arc-shaped bead portion and a rear arc-shaped bead portion that protrude outward from the vehicle body front side and vehicle body rear side, respectively,
A front vertical rib portion and a rear vertical rib portion extending inward from the mutually opposite ends of the front arc-shaped bead portion and the rear arc-shaped bead portion, respectively,
A center pillar structure of a vehicle comprising: a bottom wall portion that connects the front vertical rib portion and the rear vertical rib portion and abuts against the center pillar inner panel. 前記底壁部に、シートベルトショルダーアンカーのスライド機構を締結するためのナットを有する補強板を溶接したことを特徴とする、請求項１に記載の車両のセンターピラー構造。   The center pillar structure for a vehicle according to claim 1, wherein a reinforcing plate having a nut for fastening a sliding mechanism of a seat belt shoulder anchor is welded to the bottom wall portion. 前記スチフナは車体の窓開口からルーフサイドレールまで上下方向に延び、前記スチフナの上下方向中間部における前記底壁部の車体前後方向の幅は、前記スチフナの上部および下部における前記底壁部の車体前後方向の幅よりも大きいことを特徴とする、請求項２に記載の車両のセンターピラー構造。   The stiffener extends in the vertical direction from the window opening of the vehicle body to the roof side rail, and the width in the vehicle body front-rear direction of the bottom wall portion at the intermediate portion in the vertical direction of the stiffener is the vehicle body of the bottom wall portion in the upper and lower portions of the stiffener. The center pillar structure for a vehicle according to claim 2, wherein the center pillar structure is larger than a width in the front-rear direction. 前記スチフナは車体の窓開口からルーフサイドレールまで上下方向に延び、前記スチフナの上下方向中間部における前記前部および後部縦リブ部の高さは、前記スチフナの上部および下部における前記前部および後部縦リブ部の高さよりも低いことを特徴とする、請求項１〜請求項３の何れか１項に記載の車両のセンターピラー構造。   The stiffener extends in the vertical direction from the window opening of the vehicle body to the roof side rail, and the heights of the front and rear vertical rib portions in the vertical middle portion of the stiffener are the front and rear portions in the upper and lower portions of the stiffener. The center pillar structure for a vehicle according to any one of claims 1 to 3, wherein the center pillar structure is lower than a height of the vertical rib portion. 前記スチフナは、前記前部円弧状ビード部の前縁および前記後部円弧状ビード部の後縁からそれぞれ相互に離反する方向に延びる前部フランジ部および後部フランジ部を備え、前記前部フランジ部を前記センターピラーインナーパネルの前縁に結合するとともに前記後部フランジ部を前記センターピラーインナーパネルの後縁に結合することで、前記センターピラーインナーパネルおよび前記スチフナは閉断面を構成することを特徴とする、請求項１〜請求項４の何れか１項に記載の車両のセンターピラー構造。   The stiffener includes a front flange portion and a rear flange portion that extend in directions away from the front edge of the front arc-shaped bead portion and the rear edge of the rear arc-shaped bead portion, respectively, and the front flange portion The center pillar inner panel and the stiffener form a closed cross section by connecting to the front edge of the center pillar inner panel and connecting the rear flange portion to the rear edge of the center pillar inner panel. The center pillar structure of the vehicle according to any one of claims 1 to 4. 前記スチフナはホットプレス成形により製作されることを特徴とする、請求項１〜請求項５の何れか１項に記載の車両のセンターピラー構造。   The center pillar structure for a vehicle according to any one of claims 1 to 5, wherein the stiffener is manufactured by hot press molding.
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WO2014084768A1 (en) * 2012-11-29 2014-06-05 Gestamp Hardtech Ab Door beam for vehicles
US9205726B2 (en) 2012-11-29 2015-12-08 Gestamp Hardtech Ab Door beam for vehicles
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JP2019506322A (en) * 2015-12-18 2019-03-07 オートテック・エンジニアリング・アグルパシオン・デ・インテレス・エコノミコＡｕｔｏｔｅｃｈ Ｅｎｇｉｎｅｅｒｉｎｇ Ａ．Ｉ．Ｅ． Hardened UHSS structural beam with reinforcement and method of manufacture
CN112888866A (en) * 2019-06-21 2021-06-01 东芝三菱电机产业***株式会社 Connecting member and frame

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