JP2002347655A - Pillar reinforcing structure for automobile - Google Patents
Pillar reinforcing structure for automobileInfo
- Publication number
- JP2002347655A JP2002347655A JP2001155140A JP2001155140A JP2002347655A JP 2002347655 A JP2002347655 A JP 2002347655A JP 2001155140 A JP2001155140 A JP 2001155140A JP 2001155140 A JP2001155140 A JP 2001155140A JP 2002347655 A JP2002347655 A JP 2002347655A
- Authority
- JP
- Japan
- Prior art keywords
- pillar
- inner member
- automobile
- rein hose
- hose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車のピラー補
強構造に関し、詳細には側面衝突時のピラー部材の座屈
モードの改善に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pillar reinforcement structure for a motor vehicle, and more particularly to an improvement in a buckling mode of a pillar member in a side collision.
【０００２】[0002]
【従来の技術】一般に、自動車においては、側面衝突時
のエネルギーをセンタピラー，フロントドアを介して車
体全体に分散させることにより、車室内への変形量をで
きるだけ小さくして乗員への影響を回避するようにして
いる。2. Description of the Related Art In general, in an automobile, energy during a side collision is dispersed throughout the vehicle body through a center pillar and a front door, thereby minimizing the amount of deformation in the vehicle interior and avoiding the influence on occupants. I am trying to do it.
【０００３】この場合、センタピラーが例えばベルトラ
イン付近で折れ曲がったりすると、乗員の胸部に干渉す
る懸念がある。このようなベルトライン付近での折れ曲
がりを防止するために、従来、ピラーリインホースを差
厚結合鋼板により形成し、この差厚結合鋼板の結合部を
ベルトラインより低所に位置させることにより、乗員の
胸部への影響を回避するようにしたものが提案されてい
る（特開２０００−８５６２０号公報参照）。In this case, if the center pillar bends, for example, near the belt line, there is a concern that the center pillar may interfere with the occupant's chest. Conventionally, in order to prevent such bending near the belt line, a pillar-in hose is formed of a difference-thickness bonded steel plate, and the connecting portion of the difference-thickness bonded steel plate is positioned lower than the belt line, so that an occupant can be prevented. In order to avoid the influence on the chest, Japanese Patent Application Laid-Open No. 2000-85620 has been proposed.
【０００４】[0004]
【発明が解決しようとする課題】ところが、上記従来の
ピラーリインホースを差厚結合鋼板により形成した場合
には、結合部にて折れ曲がりを誘発できるものの、エネ
ルギーの如何によってはピラーリインホースが破断する
おそれがあり、エネルギー吸収効果が十分に得られない
場合がある。即ち、差厚結合鋼板は剛性が高いものの外
力によっては接合部が口開きし、場合によっては破断す
るという懸念がある（図５の二点鎖線ａ参照）。However, when the above-mentioned conventional pillar rein hose is formed from a steel plate having a different thickness, a bend can be induced at the connection portion, but the pillar rein hose is broken depending on the energy. There is a possibility that the energy absorption effect may not be sufficiently obtained. That is, although the differential thickness bonded steel sheet has a high rigidity, there is a concern that the joint may be opened by an external force and broken in some cases (see a two-dot chain line a in FIG. 5).
【０００５】本発明は、上記実情に鑑みてなされたもの
で、側面衝突時のピラーリインホースの破断を防止し
て、エネルギーの吸収を確実に行える自動車のピラー補
強構造を提供することを目的としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a vehicle pillar reinforcement structure capable of preventing breakage of a pillar rein hose at a side collision and reliably absorbing energy. I have.
【０００６】[0006]
【課題を解決するための手段】請求項１の発明は、ドア
開口の縦縁部を形成するピラー部材内にピラーリインホ
ースを配設し、該ピラーリインホースの下端部を上記ド
ア開口の下縁部を形成するロッカ部に接続してなる自動
車のピラー補強構造において、上記ピラーリインホース
を長手方向上側の厚板部と該厚板部より板厚の小さい下
側の薄板部とからなる差厚結合鋼板により形成するとと
もに、上記厚板部と薄板部との結合部を上記ピラー部材
の上下方向中央部より低所に位置させ、上記ピラーリイ
ンホースに上記結合部を跨いで上下方向に延びるインナ
部材を配設し、該インナ部材の下端部を上記結合部とロ
ッカ部との間に位置させたことを特徴としている。According to a first aspect of the present invention, a pillar rein hose is provided in a pillar member forming a vertical edge of a door opening, and a lower end of the pillar rein hose is positioned below the door opening. In a pillar reinforcing structure for an automobile connected to a rocker portion forming an edge portion, the pillar rein hose is formed by a longitudinally upper thick plate portion and a lower thin plate portion having a smaller thickness than the thick plate portion. Formed by a thick-bonded steel plate, the connecting portion between the thick plate portion and the thin plate portion is positioned lower than the center in the vertical direction of the pillar member, and extends vertically in the pillar rein hose over the connecting portion. An inner member is provided, and a lower end portion of the inner member is located between the coupling portion and the rocker portion.
【０００７】請求項２の発明は、請求項１において、上
記ピラーリインホース又はインナ部材の上記結合部とロ
ッカ部との間には座屈誘発部が形成されていることを特
徴としている。A second aspect of the present invention is characterized in that, in the first aspect, a buckling inducing portion is formed between the connecting portion and the rocker portion of the pillar-in hose or the inner member.
【０００８】[0008]
【発明の作用効果】本発明にかかるピラー補強構造によ
れば、ピラーリインホースを差厚結合鋼板により形成す
るとともに、該差厚結合鋼板の結合部を低所に位置さ
せ、上記ピラーリインホースにこれの結合部を股がって
上下方向に延びるインナ部材を配設し、該インナ部材の
下端部を上記結合部とロッカ部との間に位置させたの
で、ピラーリインホースの結合部はインナ部材で補強さ
れることから、側面衝突によるエネルギーを上記結合部
より下方のインナ部材の下端部が折れ曲がることにより
吸収することとなる。その結果、ピラーリインホースの
結合部での破断を防止でき、安定した座屈モードが得ら
れることとなり、乗員の胸部への影響を回避できる。According to the pillar reinforcing structure according to the present invention, the pillar rein hose is formed of a steel plate having a different thickness, and the connecting portion of the steel plate having a different thickness is located at a low position. An inner member extending vertically in the crotch portion of the connecting portion is provided, and a lower end portion of the inner member is located between the connecting portion and the rocker portion. Since the member is reinforced, the energy due to the side collision is absorbed by bending the lower end of the inner member below the joint. As a result, breakage at the joint of the pillar rein hose can be prevented, a stable buckling mode can be obtained, and influence on the occupant's chest can be avoided.
【０００９】請求項２の発明では、上記ピラーリインホ
ース又はインナ部材の下端部に座屈誘発部を形成したの
で、インナ部材の下端部での応力集中を分散させること
ができ、座屈変形を確実に誘発させることができ、安定
した座屈モードを得ることができる。According to the second aspect of the present invention, since the buckling inducing portion is formed at the lower end of the pillar-in hose or the inner member, stress concentration at the lower end of the inner member can be dispersed, and buckling deformation can be prevented. The trigger can be surely induced, and a stable buckling mode can be obtained.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施の形態を添付
図面に基づいて説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１１】図１ないし図５は、本発明の一実施形態に
よる自動車のピラー補強構造を説明するための図であ
り、図１は自動車のサイドパネルの側面図、図２はセン
タピラー下部の側面図、図３はセンタピラーの横断面図
（図２のIII-III 線断面図）、図４はセンタピラーの縦
断面図（図２のIV-IV 線断面図）、図５はセンタピラー
の座屈モードを示す模式図である。FIGS. 1 to 5 are views for explaining a vehicle pillar reinforcing structure according to an embodiment of the present invention. FIG. 1 is a side view of a side panel of the vehicle, and FIG. 2 is a side view of a lower portion of a center pillar. FIG. 3 is a cross-sectional view of the center pillar (a cross-sectional view taken along the line III-III of FIG. 2), FIG. 4 is a vertical cross-sectional view of the center pillar (a cross-sectional view taken along the line IV-IV of FIG. 2), and FIG. It is a schematic diagram which shows a buckling mode.
【００１２】図１において、１は自動車のサイドパネル
を示しており、これは車両上下方向に延びるフロントピ
ラー２の上端部に車両前後方向に延びるルーフサイドレ
ール３の前端部を接続し、下端部に同じく車両前後方向
に延びるロッカパネル４の前端部を接続し、上記フロン
トピラー２の後方のルーフサイドレール３とロッカパネ
ル４との間にセンタピラー５を掛け渡して接続した概略
構造のものである。In FIG. 1, reference numeral 1 denotes a side panel of an automobile, which is connected to the upper end of a front pillar 2 extending in the vertical direction of the vehicle and the front end of a roof side rail 3 extending in the longitudinal direction of the vehicle. The front end of a rocker panel 4 also extending in the vehicle front-rear direction is connected, and a center pillar 5 is bridged between the roof side rail 3 behind the front pillar 2 and the rocker panel 4 to be connected. is there.
【００１３】上記フロントピラー２，ルーフサイドレー
ル３，ロッカパネル４，及びセンタピラー５によりフロ
ントドア開口１ａ及びリヤドア開口１ｂが形成されてお
り、該各ドア開口１ａ，１ｂにはそれぞれフロントド
ア，リヤドア（不図示）が配設されている。A front door opening 1a and a rear door opening 1b are formed by the front pillar 2, roof side rail 3, rocker panel 4, and center pillar 5, and a front door and a rear door are respectively formed in the door openings 1a and 1b. (Not shown) is provided.
【００１４】このフロントドアのドア本体内にはベルト
ラインＬに沿うようにベルトラインリインホース６が配
設されている。また上記ドア本体内にはインパクトビー
ム７が配設されており、該インパクトビーム７の前端部
はフロントドアの上側ヒンジ部の近傍に、後端部は下側
ヒンジ部の近傍にそれぞれ結合されている。このインパ
クトビーム７は側面衝突時にドア本体が車室側に膨出変
形するのを抑制するものである。A belt line rein hose 6 is arranged along the belt line L in the door body of the front door. Further, an impact beam 7 is provided in the door body, and a front end of the impact beam 7 is connected to a vicinity of an upper hinge portion of the front door, and a rear end of the impact beam 7 is connected to a vicinity of a lower hinge portion of the front door. I have. The impact beam 7 suppresses the door body from bulging and deforming toward the passenger compartment during a side collision.
【００１５】上記センタピラー５は、横断面ハット状の
ピラーアウタ８とピラーインナ９との間にピラーリイン
ホース１０を配設し、これらの前縁部５ａ，後縁部５ｂ
同士をスポット溶接により接合した構造のものであり、
これにより上下方向に延びる角筒状の閉断面が形成され
ている。The center pillar 5 is provided with a pillar rein hose 10 between a pillar outer 8 having a hat-shaped cross section and a pillar inner 9, and has a front edge 5a and a rear edge 5b.
It is of a structure where they are joined by spot welding,
As a result, a rectangular tubular closed cross section extending in the vertical direction is formed.
【００１６】上記ピラーリインホース１０は上記ピラー
アウタ８の内面に沿うように横断面ハット状に形成され
ており、これの上フランジ部１０ａは上記ルーフサイド
レール３の外側壁に接合されており、下フランジ部１０
ｂはロッカパネル４の外側壁に接合されている。The pillar rein hose 10 is formed in a hat shape with a cross section along the inner surface of the pillar outer 8, and an upper flange portion 10a thereof is joined to an outer wall of the roof side rail 3; Flange part 10
b is joined to the outer wall of the rocker panel 4.
【００１７】上記ピラーリインホース１０は、長手方向
上側の厚板部ｔ１とこれより板厚の小さい薄板部ｔ２と
を一体に結合してなる差厚結合鋼板により形成されたも
のである。具体的には、板厚１．４ｍｍの厚板鋼板と板
厚１．２ｍｍの薄板鋼板とを溶接等により一体化し、こ
れをプレス成形して製造されたものである。この差厚結
合鋼板を採用したことにより、外力に対する剛性を確保
しつつ、従来の板厚の異なる複数のリインホースを配設
する場合に比べて部品点数，組立て工数を低減でき、さ
らには軽量化を図ることができる。The pillar-in hose 10 is formed of a thickness-differentially joined steel sheet in which a thick plate portion t1 on the upper side in the longitudinal direction and a thin plate portion t2 having a smaller thickness are integrally joined. Specifically, a thick steel plate having a thickness of 1.4 mm and a thin steel plate having a thickness of 1.2 mm are integrated by welding or the like, and are manufactured by press molding. The adoption of this thickness-coupled steel sheet reduces the number of parts and assembling man-hours compared to the conventional arrangement of multiple rein hoses with different thicknesses, while maintaining rigidity against external force, and further reducing weight. Can be planned.
【００１８】上記厚板部ｔ１はピラーリインホース１０
の上端から下部に渡る長さとなっており、残りが薄板部
ｔ２となっている。この厚板部ｔ１と薄板部ｔ２との結
合部ｔは上記ピラーリインホース１０の下側ヒンジ部１
０ｃの上部近傍に位置している。The thick plate portion t1 is formed by a pillar rein hose 10
Has a length extending from the upper end to the lower part, and the remainder is a thin plate portion t2. The connecting portion t between the thick plate portion t1 and the thin plate portion t2 is connected to the lower hinge portion 1 of the pillar-in hose 10.
0c.
【００１９】上記ピラーリインホース１０の内側にはイ
ンナ部材１２が配設されている。このインナ部材１２は
横断面略コ字状のものであり、ピラーリインホース１０
の外壁及び前，後壁にスポット溶接により接合されてい
る（図３〜図５の×印参照）。An inner member 12 is provided inside the pillar-in hose 10. The inner member 12 has a substantially U-shaped cross section, and
(See crosses in FIGS. 3 to 5).
【００２０】上記インナ部材１２はピラーリインホース
１０の結合部ｔを跨いで上下方向に延びている。このイ
ンナ部材１２の上端部１２ａはベルトラインＬより少し
上方に位置しており、下端部１２ｂは上記結合部ｔとロ
ッカパネル４との中間に位置している。The inner member 12 extends in the vertical direction across the joint t of the pillar-in hose 10. The upper end 12a of the inner member 12 is located slightly above the belt line L, and the lower end 12b is located in the middle between the connecting portion t and the rocker panel 4.
【００２１】また上記ピラーリインホース１０のインナ
部材１２の下端部１２ｂとロッカパネル４との間には座
屈誘発ビード１０ｅが形成されている。A buckling-inducing bead 10 e is formed between the lower end 12 b of the inner member 12 of the pillar-in hose 10 and the rocker panel 4.
【００２２】次に本実施形態の作用効果について説明す
る。Next, the operation and effect of this embodiment will be described.
【００２３】本実施形態のピラー補強構造によれば、ピ
ラーリインホース１０を差厚結合鋼板により形成すると
ともに、該差厚結合鋼板の結合部ｔをベルトラインＬよ
り下方の下側ヒンジ部１０ｃ近傍に位置させ、上記ピラ
ーリインホース１０にこれの結合部ｔを股がって上下方
向に延びるインナ部材１２を接合し、該インナ部材１２
の下端部１２ｂを上記結合部ｔとロッカパネル４との間
に位置させたので、ピラーリインホース１０の結合部ｔ
はインナ部材１２で補強されており、このため側面衝突
によるエネルギーは上記インナ部材１２の下端部１２ｂ
にて車内側に座屈することにより吸収されることとなる
（図５（ａ）〜図５（ｃ）参照）。その結果、ピラーリ
インホース１０の結合部ｔでの破断を防止でき、安定し
た座屈モードが得られることとなり、乗員の胸部への影
響を回避できる。According to the pillar reinforcement structure of the present embodiment, the pillar rein hose 10 is formed of a steel plate having a different thickness, and the connecting portion t of the steel plate having a different thickness is located near the lower hinge portion 10c below the belt line L. And an inner member 12 extending in the up-down direction with the joint t of the pillar rein hose 10 being joined to the pillar rein hose 10, and the inner member 12
Is positioned between the connecting portion t and the rocker panel 4, the connecting portion t of the pillar-in hose 10
Is reinforced by the inner member 12, so that the energy due to the side collision is reduced by the lower end 12b of the inner member 12.
And is absorbed by buckling inside the vehicle (see FIGS. 5 (a) to 5 (c)). As a result, breakage at the joint t of the pillar rein hose 10 can be prevented, a stable buckling mode can be obtained, and influence on the occupant's chest can be avoided.
【００２４】また本実施形態では、上記ピラーリインホ
ース１０のインナ部材１２の下端部１２ｂとロッカパネ
ル４との間に座屈誘発ビード１０ｅを形成したので、イ
ンナ部材１２の下端部１２ｂでの応力集中を分散させる
ことができ、座屈変形を確実に誘発させることができ、
より安定した座屈モードが得られる。In this embodiment, the buckling bead 10e is formed between the lower end portion 12b of the inner member 12 of the pillar rein hose 10 and the rocker panel 4, so that the stress at the lower end portion 12b of the inner member 12 is reduced. Concentration can be dispersed, buckling deformation can be reliably induced,
A more stable buckling mode is obtained.
【００２５】なお、上記実施形態では、ピラーリインホ
ース１０に座屈誘発ビード１０ｅを形成した場合を例に
説明したが、本発明の座屈誘発部はこれに限るものでは
ない。図６は、インナ部材１２の前，後側壁１２ｄの下
辺を斜めに切り欠くことにより座屈誘発部１２ｅを形成
し、これによりインナ部材１２の断面積を下側ほど小さ
くした例である（第１変形例）。また図７は、インナ部
材１２の前，後壁１２ｄ及び外壁１２ｆの下辺を円弧状
に切り欠くことにより下側ほど断面積が小さくなる座屈
誘発部１２ｇを形成した例である（第２変形例）。In the above embodiment, the case where the buckling induction bead 10e is formed in the pillar rein hose 10 has been described as an example, but the buckling induction portion of the present invention is not limited to this. FIG. 6 shows an example in which the buckling inducing portion 12e is formed by diagonally notching the lower sides of the front and rear walls 12d of the inner member 12 so that the cross-sectional area of the inner member 12 decreases toward the lower side. 1 modified example). FIG. 7 shows an example in which a buckling inducing portion 12g is formed in which the lower sides of the front and rear walls 12d and the outer wall 12f of the inner member 12 are cut out in an arc shape so that the sectional area becomes smaller toward the lower side. Example).
【００２６】上記何れの変形例においても、インナ部材
１２の下端部１２ｂに集中する応力歪を分散させること
ができ、安定した座屈モードが得られる。In any of the above modifications, the stress strain concentrated on the lower end portion 12b of the inner member 12 can be dispersed, and a stable buckling mode can be obtained.
【図１】本発明の一実施形態によるピラー補強構造を説
明するための自動車のサイドパネルの側面図である。FIG. 1 is a side view of an automobile side panel for explaining a pillar reinforcement structure according to an embodiment of the present invention.
【図２】上記サイドパネルのセンタピラー下部の側面図
である。FIG. 2 is a side view of a lower portion of a center pillar of the side panel.
【図３】上記センタピラーの横断面図（図２のIII-III
線断面図）である。FIG. 3 is a cross-sectional view of the center pillar (III-III in FIG. 2).
FIG.
【図４】上記センタピラー下端部の縦断面図（図２のIV
-IV 線断面図）である。4 is a longitudinal sectional view of the lower end of the center pillar (IV in FIG. 2).
-IV line sectional view).
【図５】上記センタピラーの座屈モードを示す模式図で
ある。FIG. 5 is a schematic diagram showing a buckling mode of the center pillar.
【図６】上記実施形態の第１変形例によるインナ部材の
座屈誘発部を示す斜視図である。FIG. 6 is a perspective view showing a buckling inducing portion of an inner member according to a first modification of the embodiment.
【図７】上記実施形態の第２変形例によるインナ部材の
座屈誘発部を示す斜視図である。FIG. 7 is a perspective view showing a buckling inducing portion of an inner member according to a second modification of the embodiment.
１ａ，１ｂ ドア開口 ４ ロッカパネル ５ センタピラー １０ ピラーリインホース １０ｅ 座屈誘発ビード １２ インナ部材 １２ｂ 下端部 １２ｅ，１２ｇ 座屈誘発部 ｔ 結合部 ｔ１ 厚板部 ｔ２ 薄板部 1a, 1b Door opening 4 Rocker panel 5 Center pillar 10 Pillar in hose 10e Buckling inducing bead 12 Inner member 12b Lower end 12e, 12g Buckling inducing part t Joint part t1 Thick plate part t2 Thin plate part
Claims (2)
内にピラーリインホースを配設し、該ピラーリインホー
スの下端部を上記ドア開口の下縁部を形成するロッカ部
に接続してなる自動車のピラー補強構造において、上記
ピラーリインホースを長手方向上側の厚板部と該厚板部
より板厚の小さい下側の薄板部とからなる差厚結合鋼板
により形成するとともに、上記厚板部と薄板部との結合
部を上記ピラー部材の上下方向中央部より低所に位置さ
せ、上記ピラーリインホースに上記結合部を跨いで上下
方向に延びるインナ部材を配設し、該インナ部材の下端
部を上記結合部とロッカ部との間に位置させたことを特
徴とする自動車のピラー補強構造。A pillar rein hose is provided in a pillar member forming a vertical edge portion of a door opening, and a lower end portion of the pillar rein hose is connected to a rocker portion forming a lower edge portion of the door opening. In the pillar reinforcement structure of an automobile, the pillar rein hose is formed of a thickness difference bonded steel plate including a longitudinally upper thick plate portion and a lower thin plate portion having a smaller thickness than the thick plate portion, and the thick plate The connecting portion between the portion and the thin plate portion is positioned lower than the center in the vertical direction of the pillar member, and an inner member extending in the vertical direction across the connecting portion is provided on the pillar rein hose, and the inner member is A pillar reinforcing structure for an automobile, wherein a lower end portion is located between the connecting portion and the rocker portion.
ース又はインナ部材の上記結合部とロッカ部との間には
座屈誘発部が形成されていることを特徴とする自動車の
ピラー補強構造。2. The pillar reinforcement structure according to claim 1, wherein a buckling inducing portion is formed between the connecting portion of the pillar rein hose or the inner member and the rocker portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001155140A JP3876279B2 (en) | 2001-05-24 | 2001-05-24 | Automobile pillar reinforcement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001155140A JP3876279B2 (en) | 2001-05-24 | 2001-05-24 | Automobile pillar reinforcement structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002347655A true JP2002347655A (en) | 2002-12-04 |
| JP3876279B2 JP3876279B2 (en) | 2007-01-31 |
Family
ID=18999380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001155140A Expired - Fee Related JP3876279B2 (en) | 2001-05-24 | 2001-05-24 | Automobile pillar reinforcement structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3876279B2 (en) |
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