JPH0924863A - Automobile body structure - Google Patents
Automobile body structureInfo
- Publication number
- JPH0924863A JPH0924863A JP17753495A JP17753495A JPH0924863A JP H0924863 A JPH0924863 A JP H0924863A JP 17753495 A JP17753495 A JP 17753495A JP 17753495 A JP17753495 A JP 17753495A JP H0924863 A JPH0924863 A JP H0924863A
- Authority
- JP
- Japan
- Prior art keywords
- side member
- floor
- front side
- joined
- panel
- 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
Classifications
-
- 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
- B62D25/2018—Floors or bottom sub-units in connection with other superstructure subunits the subunits being front structures
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は自動車の車体構造、
とりわけエンジンルームの側壁を構成するフードリッジ
パネルからフロアパネルに亘って車体前後方向に接合さ
れて閉断面を形成し、車体前後方向の骨格部材となるサ
イドメンバの配設構造に関する。The present invention relates to a vehicle body structure,
In particular, the present invention relates to an arrangement structure of side members that are joined to each other in the vehicle front-rear direction to form a closed cross section from a hood ridge panel that constitutes a side wall of an engine room to a floor panel to form a closed cross section.
【０００２】[0002]
【従来の技術】図６，７は従来の車体構造を示すもの
で、１１はエンジンルームの側壁を構成するフードリッ
ジパネルで、その下縁部に略コ字形断面のクロージング
プレート１１ａを接合して該クロージングプレート１１
ａにフロントサイドメンバ１２をフランジ１２ａを介し
て車体前後方向に接合して閉断面を形成している。2. Description of the Related Art FIGS. 6 and 7 show a conventional vehicle body structure. Reference numeral 11 is a hood ridge panel which constitutes a side wall of an engine room, and a closing plate 11a having a substantially U-shaped cross section is joined to a lower edge portion thereof. The closing plate 11
The front side member 12 is joined to a through the flange 12a in the vehicle front-rear direction to form a closed cross section.
【０００３】このフロントサイドメンバ１２はその後端
をクロージングプレート１１ａの後端と共にダッシュロ
アパネル１３のトーボード１３ａの部分にフランジ１１
ｂ，１２ｂを介して突当てて接合してある。The front side member 12 has a rear end with a rear end of the closing plate 11a and a flange 11 on the toe board 13a of the dash lower panel 13.
It is abutted and joined via b and 12b.
【０００４】１６は前端部を前記トーボード１３ａの後
端部上に重合して接合したフロアパネルで、その両側部
の下面には略コ字形断面のフロアサイドメンバ１５をフ
ランジ１５ａを介して車体前後方向に接合して閉断面を
形成している。Reference numeral 16 is a floor panel having a front end portion superposed on and joined to the rear end portion of the toe board 13a, and floor side members 15 each having a substantially U-shaped cross section are formed on the lower surfaces of both side portions of the toe board 13a through flanges 15a. They are joined in the direction to form a closed cross section.
【０００５】これらフロントサイドメンバ１２とフロア
サイドメンバ１５は配設地上高が異なって上下方向にオ
フセットしているため、フロントサイドメンバ１２の後
端部とフロアサイドメンバ１５の前端部に亘ってフロン
トサイドエクステンション１４を外嵌して接合し、該フ
ロントサイドエクステンション１４を介してこれらフロ
ントサイドメンバ１２とフロアサイドメンバ１５とを結
合してある。Since the front side member 12 and the floor side member 15 are arranged at different heights and are offset in the vertical direction, the front side member 12 and the front end portion of the floor side member 15 are fronted. The side extensions 14 are externally fitted and joined together, and the front side members 12 and the floor side members 15 are joined via the front side extensions 14.
【０００６】フロントサイドエクステンション１４も断
面略コ字形に形成してあると共に、トーボード１３ａの
傾斜に略合わせて曲折成形してあって、曲折部分の内側
にはコ字形断面のレインフォース１７ａを嵌合，接合し
て補強してある。The front side extension 14 is also formed to have a substantially U-shaped cross section, and is bent and formed substantially in accordance with the inclination of the toe board 13a, and a reinforcement 17a having a U-shaped cross section is fitted inside the bent portion. ， Joined and reinforced.
【０００７】この類似構造は、例えば特開平５−１４７
５５８号公報に示されている。This similar structure is disclosed, for example, in Japanese Unexamined Patent Publication No. 5-147.
No. 558, gazette.
【０００８】[0008]
【発明が解決しようとする課題】フロントサイドメンバ
１２とフロアサイドメンバ１５とが上下方向にオフセッ
トしているため、車両の前面衝突時にこれらフロントサ
イドメンバ１２とフロアサイドメンバ１５とを継ぐ曲折
したフロントサイドエクステンション１４の部分に応力
が集中するが、フロントサイドメンバ１２の後端をダッ
シュロアパネル１３のトーボード１３ａに突当ててあっ
て、入力中心であるフロントサイドメンバ１２の上壁１
２Ａがこのダッシュロアパネル１３部分で途切れるてい
るため、荷重をフロアサイドメンバ１５側へ伝達しにく
い。Since the front side member 12 and the floor side member 15 are vertically offset, a bent front connecting the front side member 12 and the floor side member 15 at the time of a frontal collision of the vehicle. Although the stress is concentrated on the side extension 14, the rear end of the front side member 12 is abutted against the toe board 13a of the dash lower panel 13, and the upper wall 1 of the front side member 12 which is the input center.
Since 2A is interrupted at this dash lower panel 13, it is difficult to transmit the load to the floor side member 15 side.
【０００９】また、フロアサイドメンバ１５およびフロ
ントサイドエクステンション１４をフロアパネル１６，
トーボード１３ａの下面側に接合配置してあるため、前
記衝突入力により圧縮側となるフロアサイドメンバ１５
のトーボード１３ａ，フロアパネル１６に接合した側の
補強が困難となってしまう。The floor side member 15 and the front side extension 14 are attached to the floor panel 16,
Since the toe board 13a is joined and arranged on the lower surface side, the floor side member 15 becomes the compression side due to the collision input.
It becomes difficult to reinforce the side joined to the toe board 13a and the floor panel 16.
【００１０】更に、フロントサイドメンバ１２の後端部
の下壁がトーボード１３ａの下側に延出していて、フロ
ントサイドエクステンション１４の閉断面がこのトーボ
ード１３ａ下側に延出したフロントサイドメンバ１２の
下壁で区切られてしまうため、レインフォース１７ａを
フロントサイドメンバ１２にまで行き渡らせることがで
きず、該レインフォース１７ａが途切れてしまう。Further, the lower wall of the rear end of the front side member 12 extends below the toe board 13a, and the closed cross section of the front side extension 14 extends to the lower side of the toe board 13a. Since it is divided by the lower wall, the reinforcement 17a cannot reach the front side member 12 and the reinforcement 17a is interrupted.
【００１１】このようなことから、フロントサイドメン
バ１２とフロアサイドメンバ１５との連設部分の剛性が
不充分となってしまうことは否めない。From the above, it cannot be denied that the rigidity of the connecting portion between the front side member 12 and the floor side member 15 becomes insufficient.
【００１２】また、フロアパネル１６面上には図８に示
すように略コ字形断面のクロスメンバ１８を左右のサイ
ドシル１９に亘ってフランジ部１８ａを介して車幅方向
に接合して閉断面を形成しているが、車両の側面衝突時
にこのクロスメンバ１８がフロアトンネル部１６ａとサ
イドシル１９との間で座屈変形しないように、該クロス
メンバ１９の内側にその上壁に沿ってコ字形断面のレイ
ンフォース１７ｂを嵌合，接合して補強する必要があっ
て、部品点数，組付作業工数が嵩んでコスト的に不利と
なってしまうのみならず、重量が嵩んで要求されている
車体の軽量化に逆行してしまう。As shown in FIG. 8, on the surface of the floor panel 16, a cross member 18 having a substantially U-shaped cross section is joined to the left and right side sills 19 in the vehicle width direction via the flange portion 18a to form a closed cross section. However, in order to prevent the cross member 18 from buckling deformation between the floor tunnel portion 16a and the side sill 19 at the time of a side collision of the vehicle, a U-shaped cross section is formed inside the cross member 19 along its upper wall. It is necessary to fit and reinforce the reinforcement 17b, and the number of parts and the number of assembling work steps are increased, which is disadvantageous in terms of cost. It goes against weight reduction.
【００１３】そこで、本発明は補強メンバの増設を伴う
ことなくフロントサイドメンバとフロアサイドメンバと
の連設部分の剛性を高められると共に、専用の補強メン
バを用いることなく側面衝突対策を徹底することができ
る自動車の車体構造を提供するものである。Therefore, according to the present invention, the rigidity of the connecting portion of the front side member and the floor side member can be enhanced without adding a reinforcing member, and the side collision countermeasure is thoroughly taken without using a dedicated reinforcing member. The present invention provides a car body structure capable of
【００１４】[0014]
【課題を解決するための手段】請求項１にあっては、フ
ードリッジパネルの下側部に車体前後方向に接合されて
閉断面を形成したフロントサイドメンバの後端をダッシ
ュロアパネル面に突当てて接合すると共に、該ダッシュ
ロアパネルのフロントサイドメンバ突合わせ部分に開口
部を形成する一方、フロアパネルからダッシュロアパネ
ルに亘ってそれらの車室側面上に、前記フロントサイド
メンバの延長上にフロアサイドメンバを車体前後方向に
接合して閉断面を形成し、該フロアサイドメンバの前端
部を前記開口部を貫通してフロントサイドメンバの後端
部内に嵌合して接合したことを特徴としている。According to a first aspect of the present invention, the rear end of the front side member, which is joined to the lower side of the hood ridge panel in the front-rear direction of the vehicle body to form a closed cross section, abuts against the dash lower panel surface. And the front side member of the dash lower panel is formed with an opening at the abutting portion of the dash lower panel, while the floor side member is extended from the floor panel to the dash lower panel on the side surface of the passenger compartment. Is joined in the front-rear direction of the vehicle body to form a closed cross section, and the front end of the floor side member penetrates the opening and is fitted and joined in the rear end of the front side member.
【００１５】この請求項１の構成によれば、フロントサ
イドメンバとフロアサイドメンバとの上下方向のオフセ
ット量を可及的に小さくすることができると共に、これ
らフロントサイドメンバとフロアサイドメンバとが直結
し、かつ、それらの上壁同志が連続するためフロントサ
イドメンバとフロアサイドメンバとの連設部分の剛性が
高められ、車両の前面衝突時の入力がフロントサイドメ
ンバからフロアサイドメンバ側へ良好に伝達される。According to the structure of claim 1, the vertical offset amount between the front side member and the floor side member can be made as small as possible, and the front side member and the floor side member are directly connected. In addition, since the upper walls are continuous with each other, the rigidity of the connecting portion of the front side member and the floor side member is increased, and the input at the time of a frontal collision of the vehicle is favorably transferred from the front side member to the floor side member side. Transmitted.
【００１６】請求項２にあっては、請求項１に記載のフ
ロアサイドメンバの前側部の内側に、該フロアサイドメ
ンバの前端部とフロントサイドメンバの後端部との嵌
合，接合部分に亘って、それらの上壁に沿ってレインフ
ォースを接合配置すると共に、フロントサイドメンバの
後端部上壁とフロアサイドメンバの前端部上壁とをなだ
らかに曲面で連続させたことを特徴としている。According to a second aspect of the present invention, inside the front side portion of the floor side member according to the first aspect, the front end portion of the floor side member and the rear end portion of the front side member are fitted and joined to each other. In addition, the reinforcement is joined and arranged along the upper wall of the front side member, and the rear end upper wall of the front side member and the front end upper wall of the floor side member are continuously formed by a smoothly curved surface. .
【００１７】この請求項２の構成によれば、車両の前面
衝突時に圧縮側となるフロントサイドメンバ後端部とフ
ロアサイドメンバ前端部との連設部分の上壁周りがレイ
ンフォースによって補強されることと、該連設部分の上
壁がなだらかな曲面で連続して応力集中が生じにくくな
ることから、該連設部分の剛性がより一層高められる。According to the second aspect of the present invention, the reinforcement around the upper wall of the connecting portion of the rear end portion of the front side member and the front end portion of the floor side member, which is the compression side at the time of a frontal collision of the vehicle, is reinforced by the reinforcement. In addition, since the upper wall of the continuous connection portion has a gentle curved surface and stress concentration is less likely to occur continuously, the rigidity of the continuous connection portion is further enhanced.
【００１８】請求項３にあっては、請求項１，２に記載
のフロアサイドメンバと、フロアパネル面上に車幅方向
に接合されて閉断面を形成したクロスメンバとを直交状
態に交差して接合したことを特徴としている。According to a third aspect of the present invention, the floor side member according to the first and second aspects and a cross member that is joined to the floor panel surface in the vehicle width direction and forms a closed cross section intersect in an orthogonal state. It is characterized by being joined together.
【００１９】この請求項３の構成によれば、クロスメン
バの中間部分をフロアサイドメンバで補強できるため、
専用のレインフォースを用いることなくクロスメンバの
剛性を高められて側面衝突対策を徹底することができ
る。According to the structure of claim 3, since the middle portion of the cross member can be reinforced by the floor side member,
The rigidity of the cross member can be increased without using a dedicated reinforcement and thorough side collision countermeasures can be taken.
【００２０】請求項４にあっては、請求項３に記載のフ
ロアパネルのフロアサイドメンバとクロスメンバとが交
差して結合した部分に凹部を形成したことを特徴として
いる。A fourth aspect of the present invention is characterized in that a recess is formed in a portion where the floor side member and the cross member of the floor panel according to the third aspect intersect and are coupled with each other.
【００２１】この請求項４の構成によれば、クロスメン
バおよび又はフロアサイドメンバの閉断面積が十分に確
保され、クロスメンバおよびフロアサイドメンバの剛性
を高めることができる。According to the structure of claim 4, the cross sectional area of the cross member and / or the floor side member is sufficiently secured, and the rigidity of the cross member and the floor side member can be increased.
【００２２】[0022]
【発明の実施の形態】図１〜５において、１はエンジン
ルームの側壁を構成するフードリッジパネルで、その下
縁部にクロージングプレート１ａを接合して該クロージ
ングプレート１ａに略コ字形断面のフロントサイドメン
バ２をフランジ２ａを介して車体前後方向に接合して閉
断面を形成している。1 to 5, reference numeral 1 denotes a hood ridge panel which constitutes a side wall of an engine room, and a closing plate 1a is joined to a lower edge portion of the hood ridge panel to form a front having a substantially U-shaped cross section on the closing plate 1a. The side member 2 is joined to the front-rear direction of the vehicle body via the flange 2a to form a closed cross section.
【００２３】このフロントサイドメンバ２はその後端を
クロージングプレート１ａの後端と共にダッシュロアパ
ネル３のトーボード３ａの部分にフランジ２ｂ，１ｂを
介して突当てて接合してある。The front end of the front side member 2 is joined to the rear end of the closing plate 1a by abutting it on the toe board 3a of the dash lower panel 3 via flanges 2b and 1b.
【００２４】ダッシュロアパネル３の前記フロントサイ
ドメンバ２を突合わせた部分には、該フロントサイドメ
ンバ２の閉断面の略上半部に相当する位置に開口部４を
形成してある。An opening 4 is formed in a portion of the dash lower panel 3 where the front side member 2 is abutted, at a position corresponding to a substantially upper half of a closed cross section of the front side member 2.
【００２５】５は略コ字形断面に形成したフロアサイド
メンバで、該フロアサイドメンバ５はフロアパネル６か
ら前記トーボード３ａに亘ってそれらの車室側面上に前
記フロントサイドメンバ２の延長上で、フランジ５ａを
介して車体前後方向に接合して閉断面を形成している。Reference numeral 5 denotes a floor side member having a substantially U-shaped cross section. The floor side member 5 extends from the floor panel 6 to the toe board 3a on the side surface of the passenger compartment on the extension of the front side member 2. A closed cross section is formed by joining in the vehicle front-rear direction via the flange 5a.
【００２６】このフロアサイドメンバ５の前端部はフラ
ンジ５ａを切除してあって、該前端部はダッシュロアパ
ネル３の開口部４を貫通してフロントサイドメンバ２の
後端部内に嵌合して接合し、それらの上壁２Ａおよび５
Ａを連続させてある。The front end of the floor side member 5 is formed by cutting off the flange 5a, and the front end penetrates through the opening 4 of the dash lower panel 3 and is fitted and joined in the rear end of the front side member 2. And their upper walls 2A and 5
A is continuous.
【００２７】前記フロアサイドメンバ５の内側には、該
フロアサイドメンバ５の前端部とフロントサイドメンバ
２の後端部との嵌合，接合部分に亘って、それらの上壁
５Ａ，２Ａに沿ってコ字形断面のレインフォース７を嵌
合して接合配置してある。Inside the floor side member 5, the front end of the floor side member 5 and the rear end of the front side member 2 are fitted and joined along their upper walls 5A, 2A. A reinforcement 7 having a U-shaped cross section is fitted and joined.
【００２８】また、このフロントサイドメンバ２の後端
部の上壁２Ａとフロアサイドメンバ５の前端部の上壁５
Ａはなだらかに曲面で連続させて角部をなくしている。Further, the upper wall 2A of the rear end portion of the front side member 2 and the upper wall 5 of the front end portion of the floor side member 5
A is gently curved and continuous to eliminate corners.
【００２９】８は略コ字形断面に形成したクロスメンバ
で、該クロスメンバ８はフロアパネル６面上にフロアト
ンネル部６ａを跨いで、左右のサイドシル９に亘ってフ
ランジ８ａを介して車幅方向に接合して閉断面を形成し
ている。Reference numeral 8 denotes a cross member formed in a substantially U-shaped cross section. The cross member 8 straddles the floor tunnel portion 6a on the surface of the floor panel 6 and extends in the vehicle width direction across the left and right side sills 9 via the flange 8a. To form a closed cross section.
【００３０】前記フロアサイドメンバ５とクロスメンバ
８とは直交状態に交差して接合してあり、この実施形態
にあってはクロスメンバ８をその両側壁に形成した溝部
８ｂを介してフロアサイドメンバ５上に跨らせて直交状
態に交差して接合してある。The floor side member 5 and the cross member 8 are orthogonally crossed and joined to each other. In this embodiment, the floor side member is provided with groove portions 8b formed on both side walls of the cross member 8. 5 are crossed over and joined in an orthogonal state.
【００３１】また、フロアパネル６には前記フロアサイ
ドメンバ５とクロスメンバ８との交差部を中心として任
意の範囲で、該フロアパネル６を例えばフロアサイドメ
ンバ５の高さを維持できる深さに下方に落し込んで凹部
１０を形成し、クロスメンバ８の閉断面積を拡大すると
共にフロアサイドメンバ５の閉断面積を維持できるよう
にしてある。In addition, the floor panel 6 has a depth that can maintain the height of the floor side member 5, for example, in an arbitrary range around the intersection of the floor side member 5 and the cross member 8. The recess 10 is formed by dropping the cross member 8 downward to expand the closed cross-sectional area of the cross member 8 and maintain the closed cross-sectional area of the floor side member 5.
【００３２】凹部１０の周縁部分は急激な形状変化によ
る応力集中を回避するために斜面に形成してある。The peripheral portion of the recess 10 is formed as an inclined surface in order to avoid stress concentration due to abrupt shape change.
【００３３】以上の実施形態の構造によれば、フロアサ
イドメンバ５はフロアパネル６とダッシュロアパネル３
のトーボード３ａに亘ってそれらの車室側面上に接合配
置してあって、該フロアサイドメンバ５の前端部をダッ
シュロアパネル３の開口部４を通してフロントサイドメ
ンバ２の後端部内に嵌合して接合してあるため、フロン
トサイドメンバ２とフロアサイドメンバ５との上下方向
のオフセット量を可及的に小さくすることができると共
に、フロントサイドメンバ２とフロアサイドメンバ５と
が直結し、かつ、車両の前面衝突時に入力中心となるフ
ロントサイドメンバ２の上壁２Ａとフロアサイドメンバ
５の上壁５Ａとが連続するため、これらフロントサイド
メンバ２とフロアサイドメンバ５との連設部分の剛性が
高められ、車両の前面衝突時の入力をフロントサイドメ
ンバ２からフロアサイドメンバ５側へ良好に伝達するこ
とができる。According to the structure of the above embodiment, the floor side member 5 includes the floor panel 6 and the dash lower panel 3.
Of the toe board 3a are joined and arranged on the side surfaces of the passenger compartment, and the front end of the floor side member 5 is fitted into the rear end of the front side member 2 through the opening 4 of the dash lower panel 3. Since they are joined together, the vertical offset amount between the front side member 2 and the floor side member 5 can be made as small as possible, and the front side member 2 and the floor side member 5 are directly connected, and Since the upper wall 2A of the front side member 2 and the upper wall 5A of the floor side member 5 which are the input centers at the time of a frontal collision of the vehicle are continuous, the rigidity of the connecting portion between the front side member 2 and the floor side member 5 is increased. Therefore, the input at the time of the frontal collision of the vehicle can be satisfactorily transmitted from the front side member 2 to the floor side member 5 side.
【００３４】この結果、車両の前面衝突時にフロントサ
イドメンバ２とフロアサイドメンバ５との連設部分で折
れ曲がり変形を生じるのを回避し、フロントサイドメン
バ２を適正に潰れ変形させて緩衝性能を向上させること
ができる。As a result, it is possible to prevent the bending deformation at the connecting portion of the front side member 2 and the floor side member 5 at the time of a frontal collision of the vehicle, and properly deform the front side member 2 to improve the cushioning performance. Can be made.
【００３５】とりわけ、この実施形態にあってはフロア
サイドメンバ５の前側部の内側に、該フロアサイドメン
バ５の前端部とフロントサイドメンバ２の後端部との嵌
合，接合部分に亘って、それらの上壁５Ａ，２Ａに沿っ
てレインフォース７を接合配置して、前面衝突時に入力
中心となるこれら上壁２Ａ，５Ａを補強してあると共
に、これら上壁２Ａ，５Ａをなだらかに曲面で連続させ
て応力集中を生じにくくしてあるため、これらフロント
サイドメンバ２とフロアサイドメンバ５との連設部分の
剛性をより一層高めることができる。In particular, in this embodiment, inside the front side of the floor side member 5, the front end of the floor side member 5 and the rear end of the front side member 2 are fitted and joined together. , The reinforcement 7 is jointly arranged along the upper walls 5A, 2A to reinforce the upper walls 2A, 5A which are the input centers at the time of a frontal collision, and the upper walls 2A, 5A are gently curved. Since the stress concentration is less likely to occur by continuously connecting the front side member 2 and the floor side member 5, the rigidity of the connecting portion of the front side member 2 and the floor side member 5 can be further increased.
【００３６】また、前記フロアサイドメンバ５はフロア
パネル６面上に車幅方向に接合配置したクロスメンバ８
の両側壁の溝部８ｂに嵌合して直交状態に交差して接合
配置してあるため、該クロスメンバ８の中間部分をこの
フロアサイドメンバ５で補強できてクロスメンバ８の剛
性を高められ、専用の補強部材を用いることなく車両の
側面衝突対策を徹底することができる。Further, the floor side member 5 is a cross member 8 arranged on the surface of the floor panel 6 so as to be joined in the vehicle width direction.
Since they are fitted in the groove portions 8b of both side walls and are arranged so as to intersect with each other in an orthogonal state, the middle portion of the cross member 8 can be reinforced by the floor side member 5, and the rigidity of the cross member 8 can be increased. It is possible to thoroughly take measures against a side collision of a vehicle without using a dedicated reinforcing member.
【００３７】しかも、これらフロアサイドメンバ５とク
ロスメンバ８の交差接合部分を中心とした任意の範囲で
フロアパネル６を下方に落し込み成形して凹部１０を形
成してあるため、クロスメンバ８の閉断面積を拡大でき
て側面衝突対策をより一層徹底できると共に、フロアサ
イドメンバ５の閉断面積の減少を回避して剛性を確保す
ることができる。Moreover, since the floor panel 6 is formed by dropping the floor panel 6 downward in an arbitrary range centering on the cross-joining portion between the floor side member 5 and the cross member 8, the cross member 8 is formed. The closed cross-sectional area can be enlarged, side collision measures can be taken more thoroughly, and a decrease in the closed cross-sectional area of the floor side member 5 can be avoided to ensure rigidity.
【００３８】[0038]
【発明の効果】以上、本発明によれば次に述べる効果を
奏せられる。As described above, according to the present invention, the following effects can be obtained.
【００３９】請求項１によれば、フロアサイドメンバを
フロアパネルとダッシュロアパネルとに亘ってそれらの
車室側面上に接合配置し、その前端部をダッシュロアパ
ネルの開口部を通してフロントサイドメンバの後端部内
に嵌合して接合してあるため、フロントサイドメンバと
フロアサイドメンバとの上下方向のオフセット量を可及
的に小さくすることができると共に、フロントサイドメ
ンバとフロアサイドメンバとが直結し、かつ、衝突入力
中心となるこれらメンバの各上壁同志が連続するため、
フロントサイドメンバとフロアサイドメンバとの連設部
分の剛性が高められ、車両の前面衝突時に衝突入力をフ
ロントサイドメンバからフロアサイドメンバへ良好に伝
達することができる。According to the first aspect of the present invention, the floor side member is arranged so as to be joined to the floor panel and the dash lower panel on the side surface of the passenger compartment, and the front end thereof is passed through the opening of the dash lower panel to the rear end of the front side member. Since the front side member and the floor side member are fitted and joined to each other in the vertical direction, the vertical offset amount between the front side member and the floor side member can be made as small as possible, and the front side member and the floor side member are directly connected, And since the upper walls of these members, which are the center of collision input, are continuous,
The rigidity of the connecting portion between the front side member and the floor side member is increased, and a collision input can be satisfactorily transmitted from the front side member to the floor side member during a frontal collision of the vehicle.
【００４０】この結果、車両の前面衝突時にフロントサ
イドメンバとフロアサイドメンバとの連設部分で折れ曲
がり変形を生じるのを回避できて、フロントサイドメン
バの適正な圧潰変形を促進させ、緩衝性能を高めて安全
性を一段と向上することができる。As a result, it is possible to avoid the bending deformation at the connecting portion of the front side member and the floor side member at the time of a frontal collision of the vehicle, to promote the proper crush deformation of the front side member and to enhance the cushioning performance. The safety can be further improved.
【００４１】請求項２によれば、フロアサイドメンバの
内側には、その前端部とフロントサイドメンバの後端部
との嵌合，接合部分に亘って、それらの上壁に沿ってレ
インフォースを接合配置して、前面衝突時に入力中心と
なるこれら上壁を補強してあると共に、これらの上壁を
なだらかな曲面で連続させて応力集中を生じにくくして
あるため、フロントサイドメンバとフロアサイドメンバ
との連設部分の剛性をより一層高めることができる。According to the second aspect, a reinforcement is provided inside the floor side member along the upper wall of the front end and the rear end of the front side member over the fitting and joining portions thereof. By arranging them jointly, these upper walls that are the input center in the case of a frontal collision are reinforced, and since these upper walls are continuous with a gently curved surface to prevent stress concentration, it is possible to reduce stress concentration. The rigidity of the portion connected to the member can be further increased.
【００４２】請求項３によれば、フロアサイドメンバを
フロアパネル面上で車幅方向に接合配置したクロスメン
バと直交状態に交差して接合配置してあるため、該クロ
スメンバの中間部分をフロアサイドメンバで補強してク
ロスメンバの剛性を高められ、専用の補強部材を用いる
ことなく車両の側面衝突対策を図ることができ、従っ
て、コストダウンと車体の軽量化とを実現することがで
きる。According to the third aspect of the invention, since the floor side member is arranged so as to intersect with the cross member which is arranged so as to be joined in the vehicle width direction on the floor panel surface in an orthogonal state, the intermediate portion of the cross member is arranged at the floor. The side members can be reinforced to increase the rigidity of the cross member, and a side collision of the vehicle can be prevented without using a dedicated reinforcing member. Therefore, cost reduction and weight reduction of the vehicle body can be realized.
【００４３】請求項４によれば、フロアパネルのフロア
サイドメンバとクロスメンバとが交差して結合した部分
に凹部を形成してあるため、クロスメンバおよび又はフ
ロアサイドメンバの閉断面積を十分に確保することがで
きて、クロスメンバおよびフロアサイドメンバの剛性を
高めることができる。According to the fourth aspect, since the recess is formed in the portion where the floor side member and the cross member of the floor panel intersect and are coupled to each other, the closed cross-sectional area of the cross member and / or the floor side member is sufficient. This can be ensured, and the rigidity of the cross member and the floor side member can be increased.
【図１】本発明の実施の一形態を示す斜視図。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】図１に示したダッシュロアパネルとフロントサ
イドメンバおよびフロアサイドメンバとの関係を示す分
解斜視図。FIG. 2 is an exploded perspective view showing a relationship between the dash lower panel shown in FIG. 1, a front side member, and a floor side member.
【図３】図１のＡ−Ａ線に沿う断面図。FIG. 3 is a sectional view taken along line AA of FIG. 1;
【図４】図３のＢ−Ｂ線に沿う断面図。FIG. 4 is a sectional view taken along the line BB in FIG. 3;
【図５】図１のＣ−Ｃ線に沿う断面図。FIG. 5 is a sectional view taken along the line CC of FIG. 1;
【図６】従来の構造を示す断面図。FIG. 6 is a cross-sectional view showing a conventional structure.
【図７】図６のＤ−Ｄ線に沿う断面図。7 is a cross-sectional view taken along the line DD of FIG.
【図８】従来の構造のクロスメンバ配設部分を示す断面
図。FIG. 8 is a cross-sectional view showing a cross member disposition portion of a conventional structure.
【符号の説明】 １ フードリッジパネル ２ フロントサイドメンバ ２Ａ，５Ａ 上壁 ３ ダッシュロアパネル ４ 開口部 ５ フロアサイドメンバ ６ フロアパネル ７ レインフォース ８ クロスメンバ １０ 凹部[Explanation of symbols] 1 Hood ridge panel 2 Front side members 2A, 5A Upper wall 3 Dash lower panel 4 Opening 5 Floor side member 6 Floor panel 7 Reinforce 8 Cross member 10 Recess
Claims (4)
方向に接合されて閉断面を形成したフロントサイドメン
バの後端をダッシュロアパネル面に突当てて接合すると
共に、該ダッシュロアパネルのフロントサイドメンバ突
合わせ部分に開口部を形成する一方、フロアパネルから
ダッシュロアパネルに亘ってそれらの車室側面上に、前
記フロントサイドメンバの延長上にフロアサイドメンバ
を車体前後方向に接合して閉断面を形成し、該フロアサ
イドメンバの前端部を前記開口部を貫通してフロントサ
イドメンバの後端部内に嵌合して接合したことを特徴と
する自動車の車体構造。1. A front side member of a dash lower panel, which is joined to a dash lower panel surface by abutting a rear end of a front side member which is joined to a lower side portion of a hood ridge panel in a vehicle longitudinal direction to form a closed cross section. While forming an opening in the abutting portion, the floor side member is joined to the vehicle body side surface from the floor panel to the dash lower panel on the extension of the front side member in the longitudinal direction of the vehicle body to form a closed cross section. The vehicle body structure for an automobile, wherein the front end of the floor side member penetrates through the opening and is fitted and joined into the rear end of the front side member.
該フロアサイドメンバの前端部とフロントサイドメンバ
の後端部との嵌合，接合部分に亘って、それらの上壁に
沿ってレインフォースを接合配置すると共に、フロント
サイドメンバの後端部上壁とフロアサイドメンバの前端
部上壁とをなだらかに曲面で連続させたことを特徴とす
る請求項１記載の自動車の車体構造。2. Inside the front side of the floor side member,
The front end of the floor side member and the rear end of the front side member are fitted and joined to each other by arranging the reinforcement along the upper wall of the front side member and the rear end upper wall of the front side member. 2. The vehicle body structure for an automobile according to claim 1, wherein the upper wall of the front side of the floor side member and the upper wall of the floor side member are smoothly curved.
上に車幅方向に接合されて閉断面を形成したクロスメン
バとを直交状態に交差して接合したことを特徴とする請
求項１，２記載の自動車の車体構造。3. A floor side member and a cross member, which is joined to the floor panel surface in the vehicle width direction to form a closed cross section, are joined to each other so as to intersect each other in an orthogonal state. Car body structure.
ロスメンバとが交差して結合した部分に凹部を形成した
ことを特徴とする請求項３に記載の自動車の車体構造。4. The vehicle body structure according to claim 3, wherein a recess is formed in a portion where the floor side member and the cross member of the floor panel intersect and are coupled with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17753495A JP3435910B2 (en) | 1995-07-13 | 1995-07-13 | Car body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17753495A JP3435910B2 (en) | 1995-07-13 | 1995-07-13 | Car body structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0924863A true JPH0924863A (en) | 1997-01-28 |
| JP3435910B2 JP3435910B2 (en) | 2003-08-11 |
Family
ID=16032622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17753495A Expired - Fee Related JP3435910B2 (en) | 1995-07-13 | 1995-07-13 | Car body structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3435910B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009012674A (en) * | 2007-07-06 | 2009-01-22 | Nissan Motor Co Ltd | Body floor structure of automobile |
| JP2009040102A (en) * | 2007-08-06 | 2009-02-26 | Honda Motor Co Ltd | Vehicle body floor structure |
| US7841649B2 (en) | 2007-03-30 | 2010-11-30 | Nissan Motor Co., Ltd. | Vehicle body structure |
| JP2011079385A (en) * | 2009-10-05 | 2011-04-21 | Mitsubishi Motors Corp | Vehicle body lower structure |
| JP2013203297A (en) * | 2012-03-29 | 2013-10-07 | Honda Motor Co Ltd | Vehicle body floor structure of vehicle |
| CN104097699A (en) * | 2013-04-02 | 2014-10-15 | 铃木株式会社 | Vehicle front structure |
| EP2357119A3 (en) * | 2010-02-03 | 2014-12-10 | Audi AG | Carrying structure, in particular front structure for a vehicle body |
| US8979173B2 (en) | 2012-03-29 | 2015-03-17 | Honda Motor Co., Ltd. | Vehicle body floor structure for automobile |
| JP2015104951A (en) * | 2013-11-28 | 2015-06-08 | トヨタ自動車株式会社 | Vehicle body lower part structure |
| CN115257946A (en) * | 2022-07-20 | 2022-11-01 | 岚图汽车科技有限公司 | Preceding cabin roof side rail connection structure and vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011089153A1 (en) * | 2011-12-20 | 2013-06-20 | Bayerische Motoren Werke Aktiengesellschaft | Structure for a motor vehicle, in particular a passenger car, and method for producing such a structure |
-
1995
- 1995-07-13 JP JP17753495A patent/JP3435910B2/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7841649B2 (en) | 2007-03-30 | 2010-11-30 | Nissan Motor Co., Ltd. | Vehicle body structure |
| JP2009012674A (en) * | 2007-07-06 | 2009-01-22 | Nissan Motor Co Ltd | Body floor structure of automobile |
| JP2009040102A (en) * | 2007-08-06 | 2009-02-26 | Honda Motor Co Ltd | Vehicle body floor structure |
| JP4558019B2 (en) * | 2007-08-06 | 2010-10-06 | 本田技研工業株式会社 | Body floor structure |
| JP2011079385A (en) * | 2009-10-05 | 2011-04-21 | Mitsubishi Motors Corp | Vehicle body lower structure |
| EP2357119A3 (en) * | 2010-02-03 | 2014-12-10 | Audi AG | Carrying structure, in particular front structure for a vehicle body |
| JP2013203297A (en) * | 2012-03-29 | 2013-10-07 | Honda Motor Co Ltd | Vehicle body floor structure of vehicle |
| US8979173B2 (en) | 2012-03-29 | 2015-03-17 | Honda Motor Co., Ltd. | Vehicle body floor structure for automobile |
| CN104097699A (en) * | 2013-04-02 | 2014-10-15 | 铃木株式会社 | Vehicle front structure |
| JP2015104951A (en) * | 2013-11-28 | 2015-06-08 | トヨタ自動車株式会社 | Vehicle body lower part structure |
| US9809253B2 (en) | 2013-11-28 | 2017-11-07 | Toyota Jidosha Kabushiki Kaisha | Vehicle body lower portion structure |
| CN115257946A (en) * | 2022-07-20 | 2022-11-01 | 岚图汽车科技有限公司 | Preceding cabin roof side rail connection structure and vehicle |
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| Publication number | Publication date |
|---|---|
| JP3435910B2 (en) | 2003-08-11 |
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