JP2011098691A

JP2011098691A - Vehicle body joining structure

Info

Publication number: JP2011098691A
Application number: JP2009256059A
Authority: JP
Inventors: Takahiro Suzaki; 孝宏須崎; Junichi Uto; 淳一宇都
Original assignee: Toyota Motor Corp
Current assignee: Toyota Motor Corp
Priority date: 2009-11-09
Filing date: 2009-11-09
Publication date: 2011-05-19

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle body structure of a joining part of a front pillar and a dash, which improve shock absorbing efficiency, by efficiently transmitting a collision load on a side collision even to a dash member. <P>SOLUTION: A joining member 13 having a projection part 13c projecting to the pillar 3 side, is arranged at the joining part of a dash 1 and a pillar 3, and its flange 13d is fixed while being sandwiched between a bone member 10 and the skin 11. A storage recessed part 30a in a shape corresponding to the projection part 13c is formed on the pillar 3 side, and the projection part 13c is inserted into the storage recessed part 30a, and is adhered and fixed by an adhesive layer 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、車両の車体構造に関し、特に、自動車用フロントピラーとダッシュとの結合部分の車体結合構造に関する。 The present invention relates to a vehicle body structure of a vehicle, and more particularly to a vehicle body connection structure of a connection portion between a front pillar for automobile and a dash.

自動車用フロントピラーの構造としては、特許文献１に記載されている構造が知られている。同文献記載の構造においては、ヒンジロアブレースによる補強構造がフロントピラーからサイドシルまで連続して設けられており、ヒンジロアブレースのシル内下端部とアウトリガー、ダッシュロアが閉接合となっている。また、ピラー接合部分には突出部が設けられており、ピラーアウターに嵌入させて接合用フランジで取り付けられている。これらの構成により、接合部の剛性を確保し、側面衝突時の衝突入力をフロアへと伝達することができ、衝撃吸収効率を向上させることができると記載されている。 As a structure of an automobile front pillar, a structure described in Patent Document 1 is known. In the structure described in this document, a reinforcing structure by hinge lower abraces is provided continuously from the front pillar to the side sill, and the lower end in the sill of the hinge lower abrace, the outrigger, and the dash lower are closed. Further, the pillar joint portion is provided with a protrusion, and is fitted into the pillar outer and attached with a joining flange. It is described that with these configurations, the rigidity of the joint can be secured, the collision input at the time of a side collision can be transmitted to the floor, and the impact absorption efficiency can be improved.

特開平７−８９４５１号公報JP 7-89451 A

特許文献１記載の発明では、側面衝突時に衝突荷重をフロアへと伝達する構成ではあるが、ダッシュメンバー側への荷重伝達を考慮して、側面衝突時の衝突荷重によるドアのフロアへの進入の抑制効果をさらに向上させたい。 The invention described in Patent Document 1 is configured to transmit the collision load to the floor at the time of a side collision, but considering the load transmission to the dash member side, the entrance of the door to the floor due to the collision load at the side collision is considered. I want to further improve the suppression effect.

そこで本発明は、側面衝突時の衝突荷重を効率的にダッシュメンバーへも伝達することができ、衝撃吸収効率の向上を可能としたフロントピラーとダッシュとの結合部分の車体構造を提供することを課題とする。 In view of the above, the present invention provides a vehicle body structure of a joint portion of a front pillar and a dash that can efficiently transmit a collision load at the time of a side collision to a dash member and can improve shock absorption efficiency. Let it be an issue.

上記課題を解決するため、本発明に係る車体結合構造は、自動車用フロントピラーとダッシュとの結合部分の車体結合構造であって、ダッシュとピラーとの接合部分に、ピラーへの側突荷重をダッシュ側へ伝達する荷重伝達部を備えていることを特徴とする。あるいは、ピラーへの衝突荷重をダッシュ側へと伝達する結合部を備えていることを特徴とする。 In order to solve the above problems, a vehicle body coupling structure according to the present invention is a vehicle body coupling structure of a coupling portion between a front pillar and a dash for an automobile, and a side impact load on the pillar is applied to a joint portion between the dash and the pillar. It is characterized by having a load transmission part that transmits to the dash side. Or it has the coupling part which transmits the collision load to a pillar to the dash side.

この荷重伝達部は、ダッシュ側、ピラー側の一方が他方へ嵌合する構造を有しているとよい。さらに、ダッシュとピラーとの嵌合部の周囲にフランジ部を有していると好ましい。 The load transmitting portion may have a structure in which one of the dash side and the pillar side is fitted to the other. Furthermore, it is preferable to have a flange portion around the fitting portion between the dash and the pillar.

あるいは、本発明に係る車体結合構造は、自動車用フロントピラーとダッシュとの結合部分の車体結合構造であって、ダッシュ、ピラー側の一方は、その接合面に相手方へと突出する突起部を有し、他方は、その接合面に上記突起部を収容する収容部を有しており、ダッシュとピラーとは接合面で接着されていることを特徴とする。 Alternatively, the vehicle body coupling structure according to the present invention is a vehicle body coupling structure of a coupling portion between an automobile front pillar and a dash, and one of the dash and pillar side has a protruding portion that protrudes to the other side on the joint surface. On the other hand, the other has a housing portion for housing the projection on the joint surface, and the dash and the pillar are bonded to each other at the joint surface.

この突起部は、形成されるダッシュまたはピラーの本体の外皮部材と骨部材の間に嵌合して固定されるフランジ部を有すると好ましい。 The protrusion preferably has a flange portion that is fitted and fixed between the outer skin member and the bone member of the main body of the dash or pillar to be formed.

本発明によれば、上記構成を採用することで、接合部分を通じてピラーからダッシュへと効果的に衝突荷重を伝達することができる。このため、ピラーの変形を抑制して、ドアのフロアへの進入抑制効果が向上し、衝撃吸収効率が向上する。 According to the present invention, by adopting the above configuration, a collision load can be effectively transmitted from the pillar to the dash through the joint portion. For this reason, the deformation | transformation of a pillar is suppressed, the approach suppression effect to the floor of a door improves, and shock absorption efficiency improves.

本発明に係る車体結合構造を示す断面図である。It is sectional drawing which shows the vehicle body coupling structure which concerns on this invention. 図１の車体結合構造を有するダッシュ部の断面図である。It is sectional drawing of the dash part which has the vehicle body coupling | bonding structure of FIG. 図１の車体結合構造の荷重伝達部の斜視図である。It is a perspective view of the load transmission part of the vehicle body coupling structure of FIG. 図１に対応する部分の従来の車体結合構造を示す断面図である。It is sectional drawing which shows the conventional vehicle body coupling | bonding structure of the part corresponding to FIG.

以下、添付図面を参照して本発明の好適な実施の形態について詳細に説明する。説明の理解を容易にするため、各図面において同一の構成要素に対しては可能な限り同一の参照番号を附し、重複する説明は省略する。 DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same reference numerals are given to the same components in the drawings as much as possible, and duplicate descriptions are omitted.

図１は、本発明に係る車体結合構造を示す断面図であり、図２は、そのダッシュ部の断面図、図３は、その荷重伝達部の斜視図である。また、図４は、図１に対応する部分の従来の車体結合構造を示す断面図である。 FIG. 1 is a cross-sectional view showing a vehicle body coupling structure according to the present invention, FIG. 2 is a cross-sectional view of the dash portion, and FIG. 3 is a perspective view of the load transmitting portion. FIG. 4 is a cross-sectional view showing a conventional vehicle body coupling structure corresponding to FIG.

この結合構造は、ダッシュ部１と、ピラー部３とを結合するものであり、ダッシュ部１、ピラー部３ともその外皮は、ＣＦＲＰ（Carbon Fiber Reinforced Plastics：炭素繊維強化プラスティック）で作られている。 This joint structure joins the dash part 1 and the pillar part 3, and the outer skin of the dash part 1 and the pillar part 3 is made of CFRP (Carbon Fiber Reinforced Plastics). .

ダッシュ部１は、図２に示されるように外皮１１内に骨部材１０、１２が上下に平行に配置される構成を有する。骨部材１０、１２はいずれも断面が略四角形の筒状の構成を有する。従来の車体結合構造においては、図４に示されるように、ダッシュ部１のピラー部３との接合端面１１ｃは、平坦な面として構成され、ピラー部３の接合端面３０ｃに接着層２０により接合されていた。このような構成の場合、側面から衝突を受けた場合、接合面（接合端面１１ｃと３０ｃ）とが剥離し、ピラー部３が変形する結果、ピラー部３に接続されるドア等の車室へ進入し、進入速度が大きいままになってしまう結果となる。これを抑制するためにピラー部３の強度を大きくしようとすると、ピラー部３の積層厚を増やす必要が生じ、車体の重量増へとつながり、好ましくない。 As shown in FIG. 2, the dash portion 1 has a configuration in which the bone members 10 and 12 are arranged in parallel in the vertical direction in the outer skin 11. Each of the bone members 10 and 12 has a cylindrical configuration with a substantially rectangular cross section. In the conventional vehicle body coupling structure, as shown in FIG. 4, the joining end surface 11 c of the dash portion 1 and the pillar portion 3 is configured as a flat surface, and is joined to the joining end surface 30 c of the pillar portion 3 by the adhesive layer 20. It had been. In the case of such a configuration, when a collision is received from the side surface, the joint surfaces (joint end surfaces 11c and 30c) are peeled off, and the pillar portion 3 is deformed. As a result, the entry speed will remain high. In order to suppress this, if the strength of the pillar portion 3 is increased, it is necessary to increase the laminated thickness of the pillar portion 3, which leads to an increase in the weight of the vehicle body, which is not preferable.

本発明に係る結合構造における下部骨部材１０部分の構成を図１に示す。ダッシュ部１のピラー部３への結合端面側に結合部材１３を配置している。この結合部材１３は、そのピラー部３側への結合端面側にピラー部３方向に突出する凸部１３ｃを有しており、凸部１３ｃの周囲にフランジ部１３ｄを備える。このフランジ部１３ｄをダッシュ部１の外皮１１と骨部材１０の間にこのフランジ部１３ｄを挟み込む形で固定している。 The structure of the lower bone member 10 portion in the joint structure according to the present invention is shown in FIG. A coupling member 13 is disposed on the coupling end face side of the dash part 1 to the pillar part 3. The coupling member 13 has a convex portion 13c that protrudes in the direction of the pillar portion 3 on the coupling end surface side toward the pillar portion 3, and includes a flange portion 13d around the convex portion 13c. The flange portion 13d is fixed in such a manner that the flange portion 13d is sandwiched between the outer skin 11 of the dash portion 1 and the bone member 10.

一方、ピラー部３は、車室側を開いた断面略コの字状の部材３０とその開口部を塞ぐ板状の部材３１で構成されている。部材３０のダッシュ部１側の端面には、ダッシュ部１の凸部１３ｃに対応する形の収容凹部３０ａが設けられている。ダッシュ部１とピラー部３とは、両者の結合面の間に接着剤を塗布し、ダッシュ部１の凸部１３ｃがこの収容凹部３０ａ内に収容されるよう両者を配置して接着剤を固化させて接着層２０を形成することにより両者を固定する。 On the other hand, the pillar part 3 is comprised by the plate-shaped member 31 which block | closes the opening 30 and the substantially U-shaped member 30 which opened the compartment side. On the end surface of the member 30 on the dash portion 1 side, an accommodation concave portion 30a having a shape corresponding to the convex portion 13c of the dash portion 1 is provided. The dash part 1 and the pillar part 3 apply an adhesive between the bonding surfaces of the two, and arrange the both so that the convex part 13c of the dash part 1 is accommodated in the accommodating concave part 30a to solidify the adhesive. Both are fixed by forming the adhesive layer 20.

この結合構造によれば、側方から衝突を受けた場合でも、ピラー部３とダッシュ部１とが凸部１３ｃと収容凹部３０ａとの嵌合によりその結合状態を維持することができるので、結合部分の剥離を防止して、ピラー部３からダッシュ部１へと衝突荷重を効率よく伝達することができる。このため、ピラー部３の変形を抑制することができ、その結果、ドアのフロアへの進入の抑制効果が向上し、その進入速度も抑えることができる。なお、上部骨部材１２の結合端面側についても下部骨部材１０の場合と同様の構成とするとよい。 According to this coupling structure, the pillar portion 3 and the dash portion 1 can maintain the coupled state by the fitting of the convex portion 13c and the accommodating concave portion 30a even when subjected to a collision from the side. The peeling of the portion can be prevented, and the collision load can be efficiently transmitted from the pillar portion 3 to the dash portion 1. For this reason, the deformation | transformation of the pillar part 3 can be suppressed, As a result, the suppression effect of the approach to the floor of a door improves, and the approach speed can also be suppressed. In addition, it is good also as a structure similar to the case of the lower bone member 10 also about the joint end surface side of the upper bone member 12.

以上述べたように、本結合構造によれば、接合部分の剥離を効果的に防止でき、衝撃吸収効率を向上させることができる。そのため、ピラー部３からの衝撃伝達が十分でない場合に比較して、その強度を大きくする必要がなく、軽量化、薄型化することができる。そのため、車体全体の軽量化やボディの薄型化も可能となる。 As described above, according to the present coupling structure, separation of the joint portion can be effectively prevented, and impact absorption efficiency can be improved. Therefore, compared with the case where the impact transmission from the pillar part 3 is not sufficient, it is not necessary to increase the strength, and the weight and thickness can be reduced. Therefore, it is possible to reduce the weight of the entire vehicle body and reduce the thickness of the body.

以上の説明では、ダッシュ部１側に突出部１３を設け、これをピラー部３の収容部３０ａ内に収容する構成を説明してきたが、ピラー部３側に突出部を設け、ダッシュ部１側に設けた収容部内にこれを収容して固定する構成としてもよい。また、双方に突出部を設け、他方にこれを収容する突出部を設けて互いに収容して固定する構成としてもよい。 In the above description, the projecting portion 13 is provided on the dash portion 1 side, and the configuration is described in which the projecting portion 13 is accommodated in the accommodating portion 30a of the pillar portion 3. However, the projecting portion is provided on the pillar portion 3 side and the dash portion 1 side is provided. It is good also as a structure which accommodates and fixes this in the accommodating part provided in this. Moreover, it is good also as a structure which provides a protrusion part in both sides and provides the protrusion part which accommodates this in the other, mutually accommodates and fixes.

また、突起の形状は、ここで説明した断面が矩形の突起に限られるものではなく、断面が円や楕円、その他の多角形等の各種の形状を用いることができる。さらに、単純な突起部に限らず、嵌め合い、噛み合わせ等によって互いを固定し、ピラー部への衝突力をダッシュ部に伝達する構成とすることも可能である。 Further, the shape of the protrusion is not limited to the protrusion having a rectangular cross section described here, and various shapes such as a circle, an ellipse, and other polygons can be used for the cross section. Furthermore, the configuration is not limited to a simple protruding portion, and it is possible to fix each other by fitting, meshing or the like, and to transmit the collision force to the pillar portion to the dash portion.

１…ダッシュ部、３…ピラー部、７…特開平、１０…下部骨部材、１１…外皮、１１ａ、ｂ…フランジ部、１１ｃ…接合端面、１２…上部骨部材、１３…結合部材、１３ｃ…凸部、１３ｄ…フランジ部、２０…接着層、３０…部材、３０ａ…収容凹部、３０ｃ…接合端面、３１…部材。
DESCRIPTION OF SYMBOLS 1 ... Dash part, 3 ... Pillar part, 7 ... Unexamined-Japanese-Patent No. 10 ... Lower bone member, 11 ... Outer skin, 11a, b ... Flange part, 11c ... Joining end surface, 12 ... Upper bone member, 13 ... Coupling member, 13c ... Projection, 13d ... flange, 20 ... adhesive layer, 30 ... member, 30a ... housing recess, 30c ... joining end face, 31 ... member.

Claims

It is a vehicle body coupling structure of a coupling portion between a front pillar for automobile and a dash,
A vehicle body coupling structure characterized in that a load transmitting portion that transmits a side impact load to the pillar to the dash side is provided at a joint portion between the dash and the pillar.

The vehicle body coupling structure according to claim 1, wherein the load transmitting portion has a structure in which one of a dash side and a pillar side is fitted to the other.

The vehicle body coupling structure according to claim 2, further comprising a flange portion around a fitting portion between the dash and the pillar.

It is a vehicle body coupling structure of a coupling portion between a front pillar for automobile and a dash,
One of the dash and pillar side has a protruding part that protrudes to the other side on its joint surface,
The other has an accommodating portion for accommodating the protruding portion on the joint surface,
The vehicle body coupling structure, wherein the dash and the pillar are bonded to each other at a joint surface.

The vehicle body structure according to claim 4, wherein the protrusion has a flange portion that is fitted and fixed between an outer skin member and a bone member of a main body of a dash or pillar to be formed.

It is a vehicle body coupling structure of a coupling portion between a front pillar for automobile and a dash,
A vehicle body coupling structure comprising a coupling portion for transmitting a collision load to the pillar to the dash side.