JPH07132860A - Reinforcing structure for vehicle body rocker section - Google Patents
Reinforcing structure for vehicle body rocker sectionInfo
- Publication number
- JPH07132860A JPH07132860A JP30342293A JP30342293A JPH07132860A JP H07132860 A JPH07132860 A JP H07132860A JP 30342293 A JP30342293 A JP 30342293A JP 30342293 A JP30342293 A JP 30342293A JP H07132860 A JPH07132860 A JP H07132860A
- Authority
- JP
- Japan
- Prior art keywords
- rocker
- vehicle body
- floor
- reinforcing
- rocker portion
- 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
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、車体ロッカ部の車体
側方からの荷重に対する曲げ剛性を向上する補強構造に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure for improving bending rigidity of a vehicle body rocker portion against a load applied from the side of the vehicle body.
【０００２】[0002]
【従来の技術】フレームサイドメンバー（縦材）を備え
ていないモノコックボデー等においては、車体下部のフ
ロア部の左右両外側に、板金製で中空閉断面のロッカ部
を、車体中心線と平行に車体前後方向に配設するととも
に、車体中心線と直交する方向に配設されたフロアクロ
スメンバの両端をこのロッカ部の側面に連結させてお
り、このロッカ部が前記フレームサイドメンバの代わり
となっており、前記フロア部の両側縁が溶接して連結さ
れている。そして、このロッカ部は、主として上下方向
の荷重と、車両発進時や急停止時等の前後方向の荷重と
を支持することを目的としている。2. Description of the Related Art In a monocoque body or the like which does not have a frame side member (vertical member), rocker parts made of sheet metal and having a hollow closed cross section are provided parallel to the car body center line on both left and right outsides of the floor part under the car body. Both ends of a floor cross member, which is arranged in the longitudinal direction of the vehicle body and is arranged in a direction orthogonal to the center line of the vehicle body, is connected to the side surface of the rocker portion, and the rocker portion serves as the frame side member. Both side edges of the floor portion are welded and connected. The rocker portion is mainly intended to support a load in the vertical direction and a load in the front-rear direction when the vehicle starts or suddenly stops.
【０００３】したがって、図６に示すようにロッカ部１
は、断面ほぼコ字形のインナパネル１ａとアウタパネル
１ｂを向かい合わせに溶接してパイプ状に形成され、こ
のインナパネル１ａの下部において車体フロア部２に連
結されている。このように従来のロッカ部１の場合に
は、車両の側面衝突時等にロッカ部１に対して外側から
ほぼ水平な方向に荷重が加わった場合に、ほぼ水平方向
に変位するとともに、このロッカ部１の主軸のうちの垂
直な弱軸３を中心に曲がろうとするため、このロッカ部
１の下部のフロア部２が連結している部分を支点に回転
運動が生じ、このロッカ部１がフロア２の方向に転倒す
ることとなる。その結果、ロッカ部１にねじれによる座
屈が生じてしまい、充分な強度が発揮されないという問
題があった。Therefore, as shown in FIG. 6, the rocker unit 1
Is formed into a pipe shape by welding an inner panel 1a and an outer panel 1b, which have a substantially U-shaped cross section, facing each other, and is connected to the vehicle body floor portion 2 at a lower portion of the inner panel 1a. As described above, in the case of the conventional rocker unit 1, when a load is applied to the rocker unit 1 from the outside in a substantially horizontal direction at the time of a side collision of the vehicle or the like, the rocker unit 1 is displaced in a substantially horizontal direction and the rocker unit 1 is displaced. Since the bending is about the vertical weak axis 3 of the main axis of the part 1, a rotational movement occurs around the part where the floor part 2 below the rocker part 1 is connected as a fulcrum, and the rocker part 1 It will fall in the direction of floor 2. As a result, the rocker portion 1 is buckled due to twisting, and there is a problem that sufficient strength is not exhibited.
【０００４】この車体のロッカ部１の補強方法として
は、パイプ状のロッカ部１内にバルクヘッドを溶接して
設けたり、同じく内部に部分的に補強版を溶接して補強
していたが、充分な強度を持たせるためには、多数の補
強材を溶接して取付ける必要があるため部品点数が増加
し、補強作業に手間がかかるとともに、補強材によって
車体重量が増加するという問題があった。As a method of reinforcing the rocker portion 1 of the vehicle body, a bulkhead is welded in the pipe-shaped rocker portion 1 or a reinforcing plate is partially welded inside for reinforcement. In order to have sufficient strength, it is necessary to weld and attach a large number of reinforcing materials, so that the number of parts increases, and the reinforcing work takes time, and the reinforcing materials increase the weight of the vehicle body. .
【０００５】また、図７は実開平４−６７１９０号公報
に記載されているロッカ部の構造を示すもので、車体フ
ロア部５の両外側には、溶接してパイプ状に形成された
ロッカ部６が車体前後方向に延設されており、このロッ
カ部６内には、このロッカ部６の内径形状にほぼ対応し
た形状の補強材７が嵌挿されるとともに、隙間に接着剤
を充填して固定されており、またこの補強材７の内部に
は、長手方向に連続する仕切壁７ａを備えている。そし
て、この仕切壁７ａは、前記フロア部５とほぼ直角な方
向（上下方向）に向けて配設されている。FIG. 7 shows the structure of the rocker portion disclosed in Japanese Utility Model Laid-Open No. 4-67190. Rocker portions formed in a pipe shape by welding on both outsides of the vehicle body floor portion 5. 6 extends in the front-rear direction of the vehicle body. A reinforcing material 7 having a shape substantially corresponding to the inner diameter of the rocker portion 6 is fitted in the rocker portion 6, and the gap is filled with an adhesive. The reinforcing member 7 is fixed, and a partition wall 7a continuous in the longitudinal direction is provided inside the reinforcing member 7. The partition wall 7a is arranged in a direction (vertical direction) substantially perpendicular to the floor portion 5.
【０００６】したがって、ロッカ部６をパイプ状の補強
材７で補強した構造とすることによって、曲げおよび捩
じり剛性の向上を図っており、特に、補強材７の内部に
仕切壁７ａを備えているために、上下方向の曲げ剛性を
大幅に向上させることができる。Therefore, the structure in which the rocker portion 6 is reinforced by the pipe-shaped reinforcing member 7 improves the bending and torsional rigidity, and in particular, the partition wall 7a is provided inside the reinforcing member 7. Therefore, the bending rigidity in the vertical direction can be significantly improved.
【０００７】[0007]
【発明が解決しようとする課題】したがって、前記実開
平４−６７１９０号公報に記載されているロッカ部６の
構造によれば、ロッカ部６内に嵌挿し、接着固定された
パイプ状の補強材７によって、このロッカ部６の上下方
向の曲げ剛性および捩じり剛性を高めることはできる
が、車両の側面衝突時等に車体のロッカ部に加わるほぼ
水平方向からの荷重に対する剛性は、充分に高められた
とはいえず、この横方向の荷重に対する補強が必要とさ
れていた。Therefore, according to the structure of the rocker portion 6 described in Japanese Utility Model Laid-Open No. 4-67190, a pipe-shaped reinforcing member fitted and fixed in the rocker portion 6 is provided. The bending rigidity and the torsional rigidity of the rocker portion 6 in the vertical direction can be increased by 7, however, the rigidity against the load applied to the rocker portion of the vehicle body from the substantially horizontal direction at the time of a side collision of the vehicle is sufficiently high. Not increased, but reinforcement was needed for this lateral load.
【０００８】この発明は、上記課題に鑑みなされたもの
で、車重を増加させずに、横方向からの荷重に対する剛
性を効果的に高めることのできる車体ロッカ部の補強構
造を提供することを目的としている。The present invention has been made in view of the above problems, and provides a reinforcing structure for a vehicle body rocker portion capable of effectively increasing the rigidity against a lateral load without increasing the vehicle weight. Has an aim.
【０００９】[0009]
【課題を解決するための手段】上記の課題を解決するた
めの手段としてこの発明は、車体フロア部の左右両外側
に、車体中心線とほぼ平行にそれぞれ配設されるととも
に、車体中心線と直交するように設けられたフロアクロ
スメンバの両端が連結される中空断面のロッカ部の内部
に補強材を嵌挿してこのロッカ部を補強する車体ロッカ
部の補強構造において、前記車体ロッカ部内に、このロ
ッカ部の内径形状と異なる断面形状で、このロッカ部の
内周面と部分的に接触するとともに、その内部に長手方
向に連続する仕切壁を有するアルミニウム合金等の軽合
金を断面中空状に形成された前記補強材を、前記仕切壁
が、左右の両ロッカ部を連結する前記フロア部の外方延
長線上もしくはフロアクロスメンバの稜線の外方延長線
上となるように嵌挿されていることを特徴としている。As a means for solving the above-mentioned problems, the present invention is arranged on both the left and right outer sides of a vehicle body floor portion substantially parallel to the vehicle body centerline, and In a reinforcing structure of a vehicle body rocker portion for reinforcing the rocker portion by inserting a reinforcing material inside a rocker portion having a hollow cross section where both ends of floor cross members provided so as to be orthogonal to each other are connected, in the vehicle body rocker portion, A light alloy such as an aluminum alloy having a cross-sectional shape different from the inner diameter shape of the rocker portion and partially contacting the inner peripheral surface of the rocker portion and having a partition wall continuous in the longitudinal direction inside thereof has a hollow cross-sectional shape. Fit the formed reinforcing material so that the partition wall is on the outer extension line of the floor portion connecting the left and right rocker portions or the outer extension line of the ridge line of the floor cross member. It is characterized in that it is.
【００１０】また、車体フロア部の左右両外側に、車体
中心線とほぼ平行にそれぞれ配設されるとともに、車体
中心線と直交するように設けられたフロアクロスメンバ
の両端が連結される中空断面のロッカ部の内部に補強材
を嵌挿してこのロッカ部を補強する車体ロッカ部の補強
構造において、前記車体ロッカ部内に、その内部に長手
方向に連続する仕切壁を有するアルミニウム合金等の軽
合金を断面中空状に形成された前記補強材を嵌挿すると
ともに、前記仕切壁が、前記フロア部に対して９０度未
満の所定の角度を成すように斜め上方に向けて配設され
ていることを特徴としている。A hollow cross section, which is arranged on both the left and right outer sides of the vehicle body floor substantially parallel to the vehicle body center line, and to which both ends of a floor cross member provided so as to be orthogonal to the vehicle body center line are connected. In a reinforcing structure of a vehicle body rocker portion for reinforcing the rocker portion by inserting a reinforcing material inside the rocker portion, a light alloy such as an aluminum alloy having a partition wall continuous in the longitudinal direction inside the vehicle body rocker portion. And the partition wall is disposed obliquely upward so as to form a predetermined angle of less than 90 degrees with respect to the floor portion, while the reinforcing member having a hollow cross section is fitted and inserted. Is characterized by.
【００１１】[0011]
【作用】上記のように、補強材が、アルミニウム合金等
の軽合金を中空状態に形成したものであるため重量増加
が抑えられるとともに、ロッカ部の内径形状と異なる断
面形状で、このロッカ部の内周面と部分的に接触する形
状を有するため、ロッカ部の内部への嵌挿が容易とな
り、また内部に有する仕切壁がフロア部の外方延長線上
もしくはフロアクロスメンバの稜線の外方延長線上とな
るように設けられているために、横方向からの荷重に対
する曲げ剛性が向上する。As described above, since the reinforcing material is formed of a light alloy such as an aluminum alloy in a hollow state, the increase in weight is suppressed, and the cross-sectional shape different from the inner diameter shape of the rocker portion is used. Since it has a shape that makes partial contact with the inner peripheral surface, it is easy to insert it into the inside of the rocker part, and the partition wall inside is on the outside extension line of the floor part or outside the ridge line of the floor cross member. Since it is provided on the line, the bending rigidity with respect to the load from the lateral direction is improved.
【００１２】また、ロッカ部内に嵌挿する補強材の内部
の仕切壁が、フロア部に対して９０度未満の所定の角度
を成すように斜め上方に向けて配設されているため、横
方向からロッカ部に加わった荷重によって、ロッカ部の
変位方向がフロア部の斜め上方となり、ロッカ部のフロ
ア部方向の回転が防止され、捩じりによるロッカ部の強
度低下が防止される。Further, since the partition wall inside the reinforcing member fitted in the rocker portion is arranged obliquely upward so as to form a predetermined angle of less than 90 degrees with respect to the floor portion, the lateral direction Due to the load applied to the rocker portion from the above, the displacement direction of the rocker portion is obliquely above the floor portion, the rotation of the rocker portion in the floor portion direction is prevented, and the strength of the rocker portion due to twisting is prevented from decreasing.
【００１３】[0013]
【実施例】以下、この発明の車体ロッカ部の補強構造の
実施例を図１ないし図６に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a reinforcing structure for a vehicle body rocker portion according to the present invention will be described below with reference to FIGS.
【００１４】図１および図２は、この発明の第１実施例
を示すもので、車体のフロア部１１の両外側（一方は省
略）には、それぞれ断面ほぼコ字形のインナパネル１２
ａとアウタパネル１２ｂとを向かい合わせに溶接してパ
イプ状に形成されたロッカ部１２が、車体前後方向に延
設されており、この長尺なロッカ部１２の高さ方向をほ
ぼ二等分する中段位置に、前記フロア部１１の縁部が溶
接されている。FIGS. 1 and 2 show a first embodiment of the present invention. An inner panel 12 having a substantially U-shaped cross section is provided on both outer sides (one is omitted) of a floor portion 11 of a vehicle body.
A rocker portion 12 formed in a pipe shape by welding a and the outer panel 12b facing each other is extended in the front-rear direction of the vehicle body, and divides the length direction of the long rocker portion 12 into two substantially equal parts. The edge of the floor 11 is welded to the middle position.
【００１５】そして、パイプ状の前記ロッカ部１２内に
は、アルミニウム合金の押出成形品である長方形断面で
その内部空間をほぼ二等分する位置に仕切壁１３ａを備
えた断面形状がほぼ漢字の日の字形をした補強材１３が
遊嵌状態に挿入されるとともに、この補強材１３は、フ
ロア部１１の縁部が溶接されている前記ロッカ部１２の
インナパネル１２ａの内面に当接させるとともに、この
インナパネル１２ａの内面に当接した部分と対向する側
に形成された１つの角部（稜）１３ｂを、アウタパネル
１２ｂに形成された段部１２ｃの内側に、ロッカ部１２
を外側から圧縮して若干弾性変形させることによって係
合させて回り止めし、さらにタッピングネジ１４によっ
て前記当接面、すなわちインナパネル１２ａの内面側に
固定されている。そして、固定された状態で補強材１３
内の仕切壁１３ａが、溶接によってロッカ部１２の中段
に連結されたフロア部１１を車体外側（図１において左
側）に延長した面と同一レベルに配設されている。The pipe-shaped rocker portion 12 has a rectangular cross section, which is an extruded product of an aluminum alloy, and has a partition wall 13a at a position that divides the internal space into approximately two halves. The sun-shaped reinforcing material 13 is inserted in a loosely fitted state, and the reinforcing material 13 is brought into contact with the inner surface of the inner panel 12a of the rocker portion 12 to which the edge portion of the floor portion 11 is welded. The one corner portion (ridge) 13b formed on the side facing the portion contacting the inner surface of the inner panel 12a is provided inside the step portion 12c formed on the outer panel 12b.
Is pressed from the outside and slightly elastically deformed to engage and prevent rotation, and is further fixed to the contact surface, that is, the inner surface side of the inner panel 12a by the tapping screw 14. And, in a fixed state, the reinforcing material 13
The inner partition wall 13a is disposed at the same level as the surface of the floor portion 11 connected to the middle stage of the rocker portion 12 by welding to the outside of the vehicle body (left side in FIG. 1).
【００１６】次に、上記のように構成されるこの実施例
の作用を説明すると、車両の側面衝突時等に、車体のロ
ッカ部１２に対して、横方向から荷重が加わると、先ず
ロッカ部１２のアウタパネル１２ｂが変形した後、補強
材１３に荷重が伝わり、この補強材１３を水平方向に曲
げようとする荷重が加わる。この横方向からの荷重に対
して、この荷重の方向と同じ方向、すなわち、ほぼ水平
に配設されている補強材１３の上下両辺および中間の仕
切壁１３ａによりロッカ部１２の曲げ変形が抑えられ
る。特に仕切壁１３ａは、その車体内側のフロア部１１
と同一平面上に連続するように配設されているため、こ
のフロア部１１によって車体内側方向への変位が規制さ
れることから、ロッカ部１３の曲げ変形を効果的に防止
される。Next, the operation of this embodiment constructed as described above will be explained. When a load is applied from the lateral direction to the rocker portion 12 of the vehicle body at the time of a side collision of the vehicle or the like, first, the rocker portion is firstly applied. After the outer panels 12b of 12 are deformed, a load is transmitted to the reinforcing member 13, and a load for bending the reinforcing member 13 in the horizontal direction is applied. With respect to the load from the lateral direction, the bending deformation of the rocker portion 12 is suppressed by the partition walls 13a in the same direction as the direction of the load, that is, the upper and lower sides of the reinforcing material 13 and the intermediate partition wall 13a. . Particularly, the partition wall 13a is the floor portion 11 inside the vehicle body.
Since the floor portion 11 restricts the displacement inward of the vehicle body, the rocker portion 13 is effectively prevented from being bent and deformed.
【００１７】したがって、ロッカ部１２は、その内部に
挿入固定された補強材１３によって効果的に補強され
て、側面衝突時等の車体側方からの荷重に対する曲げ剛
性を大幅に向上できるとともに、フロア部１１がロッカ
部１２の中段に連結されているため、このロッカ部１２
の回転が防止される。また、補強材１３として軽合金の
押出成形材を用いたため軽量化が図れ、また補強材１３
を取付けるための作業時間を短縮することができる。さ
らに、この実施例においては、補強材１３としてロッカ
部１２内に遊嵌可能な断面形状の成形材を用いたので、
板金加工および溶接により製作されたロッカ部１２に、
製作時に若干の寸法誤差が生じても、このロッカ部１２
内に補強材１３を容易に挿入することができる。Therefore, the rocker portion 12 is effectively reinforced by the reinforcing member 13 inserted and fixed therein, and the bending rigidity against a load from the side of the vehicle body at the time of a side collision can be significantly improved, and the floor can be greatly improved. Since the part 11 is connected to the middle part of the rocker part 12, this rocker part 12
Is prevented from rotating. In addition, since a light alloy extruded material is used as the reinforcing material 13, weight reduction can be achieved.
It is possible to reduce the work time for mounting the. Further, in this embodiment, since the reinforcing material 13 is a molding material having a cross-sectional shape that can be loosely fitted in the rocker portion 12,
In the rocker part 12 manufactured by sheet metal processing and welding,
Even if some dimensional error occurs during production, this rocker part 12
The reinforcing material 13 can be easily inserted therein.
【００１８】また、図３および図４はこの発明の第２実
施例を示すもので、車体のフロア部２１の両外側（一方
は省略）には、それぞれ断面ほぼコ字形のインナパネル
２２ａとアウタパネル２２ｂとを向かい合わせに溶接し
てパイプ状に形成されたロッカ部２２が、車体前後方向
に延設されており、この長尺なロッカ部２２には、その
下部に前記フロア部２１の縁部が溶接されるとともに、
このロッカ部２２と直交する方向、すなわち車体の前後
方向を結ぶ線に直角な方向に配設されたフロアクロスメ
ンバ２４の両端がそれぞれ溶接によって連結されてい
る。このフロアクロスメンバ２４は、板金加工によっ
て、その高さ方向ほぼ中央にて立上り角度を変更して折
曲させることにより稜線２４ａが形成されるとともに、
ロッカ部２２の高さより若干低いほぼ台形状に形成され
た鋼板製で、その下端部をフロア部２１の上面に溶接し
て固定されている。FIGS. 3 and 4 show a second embodiment of the present invention. An inner panel 22a and an outer panel each having a substantially U-shaped cross section are provided on both outer sides (one is omitted) of a floor portion 21 of the vehicle body. A rocker portion 22 formed in a pipe shape by welding face-to-face with 22b is extended in the vehicle front-rear direction. The long rocker portion 22 has an edge portion of the floor portion 21 at a lower portion thereof. Is welded,
Both ends of a floor cross member 24 arranged in a direction orthogonal to the rocker portion 22, that is, in a direction perpendicular to a line connecting the front-rear direction of the vehicle body are connected by welding. The floor cross member 24 has a ridge line 24a formed by sheet metal working so as to change the rising angle and bend at approximately the center in the height direction thereof.
It is made of a steel plate formed in a substantially trapezoidal shape slightly lower than the height of the rocker portion 22, and its lower end portion is welded and fixed to the upper surface of the floor portion 21.
【００１９】そして、パイプ状の前記ロッカ部２２内に
は、アルミニウム合金の押出成形品である長方形断面で
その内部空間をほぼ二等分する位置に仕切壁２３ａを備
えた断面形状がほぼ日の字形をした補強材２３が遊嵌状
態に挿入されるとともに、この補強材２３は、フロアク
ロスメンバ２４の端部が溶接されている前記ロッカ部２
２のインナパネル２２ａの内面に当接させている。The pipe-shaped rocker portion 22 has a rectangular cross section, which is an extruded product of an aluminum alloy, and has a partition wall 23a at a position that divides the internal space thereof into two equal parts. The rocker portion 2 in which the character-shaped reinforcing material 23 is inserted in a loosely fitted state and the end portion of the floor cross member 24 is welded to this reinforcing material 23
The second inner panel 22a is brought into contact with the inner surface of the second inner panel 22a.
【００２０】そして、この補強材２３の前記インナパネ
ル２２ａの内面に当接した部分と対向する側（図３にお
いて左側）に形成された１つの角部２３ｂを、アウタパ
ネル２２ｂに形成された段部２２ｃの内側に、ロッカ部
２２の弾性を利用して係合させて回り止めし、さらにタ
ッピングネジ（図示せず）によって前記インナパネル２
２ａの内面側に固定されている。そして、固定された状
態で補強材２３内の仕切壁２３ａが、溶接によってロッ
カ部２２の車体内側に連結されたフロアクロスメンバ２
４の稜線２４ａを車体外側（図３において左側）に延長
した高さに配設されている。またこの補強材２３の下辺
は、ロッカ部２２の下部に溶接されたフロア部２１を車
体外側に延長した面と同一レベルに配設され、また補強
材２３の上辺は、前記フロアクロスメンバ２４の上底を
車体外側に延長した面と同一レベルに配設されている。Then, one corner portion 23b formed on the side (left side in FIG. 3) opposite to the portion of the reinforcing member 23 which is in contact with the inner surface of the inner panel 22a is a step portion formed on the outer panel 22b. 22c is engaged with the inside of the rocker part 22 by utilizing the elasticity of the rocker part 22 to prevent the rocker part 22 from rotating, and further the inner panel 2 is fixed by a tapping screw (not shown).
It is fixed to the inner surface side of 2a. The floor cross member 2 in which the partition wall 23a in the reinforcing member 23 is connected to the inside of the vehicle body of the rocker portion 22 by welding in a fixed state.
The ridgeline 24a of No. 4 is provided at a height extending to the outside of the vehicle body (left side in FIG. 3). Further, the lower side of the reinforcing member 23 is arranged at the same level as the surface of the floor portion 21 welded to the lower portion of the rocker portion 22 to the outside of the vehicle body, and the upper side of the reinforcing member 23 is the floor cross member 24. It is arranged at the same level as the surface where the upper bottom is extended to the outside of the vehicle body.
【００２１】次に、上記のように構成されるこの実施例
の作用を説明すると、車両の側面衝突時等に、車体のロ
ッカ部２２に対して、横方向から荷重が加わると、先ず
ロッカ部２２のアウタパネル２２ｂが変形した後、補強
材２３に荷重が伝わり、この補強材２３を水平方向に曲
げようとする荷重が加わる。この横方向からの荷重に対
して、この荷重の方向と同じ方向、すなわち、ほぼ水平
に配設されている補強材２３の上下両辺および中間の仕
切壁２３ａによりロッカ部２２の曲げ変形が抑えられ
る。すなわち、補強材２３の上辺は、フロアクロスメン
バ２４の上底と同一平面上に配設され、また下辺がフロ
ア部２１と同一平面上に連続するように配設されるとと
もに、仕切壁２３ａが、フロアクロスメンバ２４の２つ
の面が合わせ目徒なるため座屈耐力の大きな稜線２４ａ
と同じ高さに配設されているため、このフロアクロスメ
ンバ２４とフロア部２１とによって車体内側方向への変
位が規制されることから、ロッカ部２３の曲げ変形を効
果的に防止される。Next, the operation of this embodiment configured as described above will be explained. When a load is applied from the lateral direction to the rocker portion 22 of the vehicle body at the time of a side collision of the vehicle or the like, firstly, the rocker portion is first applied. After the outer panel 22b of 22 is deformed, a load is transmitted to the reinforcing member 23, and a load for bending the reinforcing member 23 in the horizontal direction is applied. With respect to the load from the lateral direction, bending deformation of the rocker portion 22 is suppressed by the partition walls 23a in the same direction as the direction of the load, that is, the upper and lower sides of the reinforcing member 23 and the intermediate partition wall 23a. . That is, the upper side of the reinforcing member 23 is arranged on the same plane as the upper bottom of the floor cross member 24, the lower side is arranged so as to be continuous with the floor portion 21 on the same plane, and the partition wall 23a is formed. Since the two surfaces of the floor cross member 24 are joined together, the ridge line 24a having a large buckling resistance
Since the floor cross member 24 and the floor portion 21 restrict the displacement inward of the vehicle body, the rocker portion 23 is effectively prevented from being bent and deformed.
【００２２】したがって、ロッカ部２２は、その内部に
挿入固定された補強材２３によって効果的に補強され、
側面衝突時等の車体側方からの荷重に対する曲げ剛性を
大幅に向上することができるとともに、前記第１実施例
の場合と同様に、補強材２３として軽合金の押出成形材
を用いたため軽量化が図れ、また補強材２３の挿入およ
び取付け作業時間を短縮することができる等の効果を有
している。Therefore, the rocker portion 22 is effectively reinforced by the reinforcing member 23 inserted and fixed therein.
The bending rigidity against the load from the side of the vehicle body at the time of a side collision can be significantly improved, and, as in the case of the first embodiment, a lightweight alloy extruded material is used as the reinforcing material 23 to reduce the weight. In addition, the time required for inserting and attaching the reinforcing material 23 can be shortened.
【００２３】さらに、図５はこの発明の第３実施例を示
すもので、車体のフロア部３１の両外側（一方は省略）
には、それぞれ断面ほぼコ字形のインナパネル３２ａと
アウタパネル３２ｂとを向かい合わせに溶接してパイプ
状に形成されたロッカ部３２が、車体前後方向に延設さ
れており、この長尺なロッカ部３２の下部に前記フロア
部３１の縁部が溶接されて連結されている。Further, FIG. 5 shows a third embodiment of the present invention, in which both outsides of the floor portion 31 of the vehicle body (one is omitted).
A rocker portion 32 formed in a pipe shape by welding an inner panel 32a and an outer panel 32b, each having a substantially U-shaped cross section, facing each other is extended in the vehicle body front-rear direction. An edge portion of the floor portion 31 is welded and connected to a lower portion of 32.
【００２４】そして、パイプ状の前記ロッカ部３２内に
は、補強材３３がアルミニウム合金の押出成形品で、そ
の断面形状が、ほぼ扇面形でその扇の開き角度をほぼ二
等分する位置に仕切壁３３ａを備えた形状に形成され、
ロッカ部３２内面と凹凸係合してその回転が規制された
状態に嵌挿されるとともに、その外周面の一部を、フロ
ア部３１が溶接されているインナパネル３２ａの下部内
面に当接し、さらにタッピングネジ（図示せず）によっ
て前記インナパネル３２ａに固定されている。また、前
記仕切壁３３ａは、補強材３３の主軸のうちの強軸３５
上に形成され、この強軸３５と直交するように弱軸３４
が通っている。In the pipe-shaped rocker portion 32, the reinforcing material 33 is an extruded product of an aluminum alloy, and the cross-sectional shape thereof is substantially fan-shaped so that the opening angle of the fan is approximately bisected. Is formed in a shape with a partition wall 33a,
The rocker portion 32 is engaged with the inner surface of the rocker portion in a concavo-convex manner to be fitted in a state in which its rotation is restricted, and a part of the outer peripheral surface thereof is brought into contact with the inner surface of the lower portion of the inner panel 32a to which the floor portion 31 is welded. It is fixed to the inner panel 32a by a tapping screw (not shown). In addition, the partition wall 33a is a strong shaft 35 of the main shafts of the reinforcing member 33.
The weak axis 34 is formed on the upper side and is orthogonal to the strong axis 35.
Is passing.
【００２５】そして、前記仕切壁３３ａはロッカ部３２
内に固定された状態で、補強材３３の強軸３５、すなわ
ち仕切壁３３ａが、フロア部３１に対して約４５度の角
度を成すように配設されている。The partition wall 33a has a rocker portion 32.
The strong shaft 35 of the reinforcing member 33, that is, the partition wall 33a is arranged so as to form an angle of about 45 degrees with respect to the floor portion 31 while being fixed inside.
【００２６】次に、上記のように構成されるこの実施例
の作用を説明すると、車両の側面衝突時等に、車体のロ
ッカ部３２に対して、横方向から荷重が加わると、先ず
ロッカ部３２のアウタパネル３２ｂが変形した後、補強
材３３に荷重が伝わり、この補強材３３に対して、これ
を水平方向に曲げようとする荷重が加わる。この横方向
からの荷重に対して補強材３３は、その弱軸３４を中心
に曲がろうとするが、この弱軸３４と直交するように仕
切壁３３ａが配設されているため、その変位方向は水平
に対して４５度斜め上方に変換され、その結果、補強材
３３によってロッカ部３２の倒れ、すなわちフロア部３
１が連結されている下部を支点とする回転方向の力が打
ち消されるため、回転することによるロッカ部３２の捩
じれによる強度低下が防止される。Next, the operation of this embodiment configured as described above will be explained. When a load is applied from the lateral direction to the rocker portion 32 of the vehicle body at the time of a side collision of the vehicle or the like, first, the rocker portion is first. After the outer panel 32b of 32 is deformed, a load is transmitted to the reinforcing member 33, and a load for bending the reinforcing member 33 in a horizontal direction is applied to the reinforcing member 33. The reinforcing member 33 tries to bend around the weak axis 34 with respect to the load from the lateral direction, but since the partition wall 33a is disposed so as to be orthogonal to the weak axis 34, the displacement direction thereof Is converted to an angle of 45 degrees upward with respect to the horizontal, and as a result, the rocker portion 32 is tilted by the reinforcing member 33, that is, the floor portion 3
Since the force in the rotation direction with the lower portion to which 1 is connected as the fulcrum is canceled, the strength reduction due to the twist of the rocker portion 32 due to the rotation is prevented.
【００２７】したがって、ロッカ部３２は、その内部に
挿入固定された補強材３３によって効果的に補強され、
側面衝突時等の車体側方からの荷重に対する剛性を大幅
に向上することができるとともに、前記各実施例の場合
と同様に、補強材３３として軽合金の押出成形材を用い
たため軽量化が図れ、また補強材３３の挿入および取付
け作行時間を短縮することができる等の効果を有してい
る。Therefore, the rocker portion 32 is effectively reinforced by the reinforcing member 33 inserted and fixed therein.
The rigidity with respect to the load from the side of the vehicle body at the time of a side collision can be significantly improved and, as in the case of each of the above-mentioned embodiments, the extruded material of the light alloy is used as the reinforcing material 33, so that the weight can be reduced. In addition, the time required for inserting and mounting the reinforcing member 33 can be shortened.
【００２８】なお、上記各実施例においては、仕切壁の
１枚備えた補強材１３，２３，３３の場合について説明
したが、仕切壁を２枚以上備えた補強材を使用すること
もできる。In each of the above embodiments, the case where the reinforcing members 13, 23, 33 having one partition wall are described, but a reinforcing member having two or more partition walls may be used.
【００２９】[0029]
【発明の効果】以上説明したようにこの発明の車体ロッ
カ部の補強構造は、ロッカ部の内径形状と異なる断面形
状で軽合金の中空部材を補強材としてロッカ部内に嵌挿
するとともに、補強材内を長手方向に連続する仕切壁が
フロア部あるいはフロアクロスメンバの稜線の車体外方
への延長線上となるように配設したので、前記仕切壁を
含む補強材による補強作用が高められ、重量を増加する
ことなくロッカ部の曲げ剛性を著しく向上することがで
きる。また、ロッカ部内に嵌挿する補強材の仕切壁が、
フロア部に対して９０度未満の所定の角度を成すように
斜め上方に向けて配設すれば、横方向からの荷重による
ロッカ部の回転が抑制され、回転することによるロッカ
部の強度低下を防止することができる。As described above, according to the reinforcing structure of the vehicle body rocker portion of the present invention, a hollow member of a light alloy having a cross-sectional shape different from the inner diameter shape of the rocker portion is inserted into the rocker portion as a reinforcing material and the reinforcing material is Since the partition wall that is continuous in the longitudinal direction is arranged so as to be on the extension line of the ridgeline of the floor portion or floor cross member to the outside of the vehicle body, the reinforcing action by the reinforcing material including the partition wall is enhanced, and the weight is increased. The bending rigidity of the rocker portion can be remarkably improved without increasing. In addition, the partition wall of the reinforcing material that fits in the rocker part,
By arranging the rocker portion obliquely upward so as to form a predetermined angle of less than 90 degrees with respect to the floor portion, rotation of the rocker portion due to a load from the lateral direction is suppressed, and a decrease in strength of the rocker portion due to rotation is prevented. Can be prevented.
【図１】この発明の第１実施例のロッカ部の補強構造を
示す第２図のＩ−Ｉ線断面図である。FIG. 1 is a sectional view taken along the line II of FIG. 2 showing a rocker part reinforcing structure according to a first embodiment of the present invention.
【図２】第１実施例の補強されたロッカ部を示す斜視図
である。FIG. 2 is a perspective view showing a reinforced rocker portion of the first embodiment.
【図３】この発明の第２実施例のロッカ部の補強構造を
示す断面正面図である。FIG. 3 is a sectional front view showing a reinforcing structure of a rocker portion according to a second embodiment of the present invention.
【図４】第２実施例のロッカ部を示す図３のＩＶ−ＩＶ
線断面図である。4 is a IV-IV of FIG. 3 showing a rocker part of a second embodiment.
It is a line sectional view.
【図５】この発明の第３実施例のロッカ部の補強構造を
示す断面正面図である。FIG. 5 is a sectional front view showing a reinforcing structure of a rocker portion according to a third embodiment of the present invention.
【図６】従来の補強されていないロッカ部を示す断面正
面図である。FIG. 6 is a sectional front view showing a conventional non-reinforced rocker portion.
【図７】別の従来のロッカ部の補強構造を示す説明図で
ある。FIG. 7 is an explanatory view showing another conventional rocker portion reinforcing structure.
１１ フロア部 １２ ロッカ部 １３ 補強材 １３ａ 仕切壁 ２３ 補強材 ２３ａ 仕切壁 ２４ フロアクロスメンバ ２４ａ 稜線 ３３ 補強材 ３３ａ 仕切壁 ３４ 弱軸 11 Floor Part 12 Rocker Part 13 Reinforcement Material 13a Partition Wall 23 Reinforcement Material 23a Partition Wall 24 Floor Cross Member 24a Ridge Line 33 Reinforcement Material 33a Partition Wall 34 Weak Shaft
Claims (2)
線とほぼ平行にそれぞれ配設されるとともに、車体中心
線と直交するように設けられたフロアクロスメンバの両
端が連結される中空断面のロッカ部の内部に補強材を嵌
挿してこのロッカ部を補強する車体ロッカ部の補強構造
において、 前記車体ロッカ部内に、このロッカ部の内径形状と異な
る断面形状で、このロッカ部の内周面と部分的に接触す
るとともに、その内部に長手方向に連続する仕切壁を有
するアルミニウム合金等の軽合金を断面中空状に形成さ
れた前記補強材を、前記仕切壁が、左右の両ロッカ部を
連結する前記フロア部の外方延長線上もしくはフロアク
ロスメンバの稜線の外方延長線上となるように嵌挿され
ていることを特徴とする車体ロッカ部の補強構造。1. A hollow cross section to which both ends of a floor cross member, which are arranged substantially parallel to a vehicle body center line on both left and right outer sides of a vehicle body floor portion and are orthogonal to the vehicle body center line, are connected. In a reinforcing structure of a vehicle body rocker portion for reinforcing this rocker portion by inserting a reinforcing material into the inside of the rocker portion, a cross-sectional shape different from the inner diameter shape of the rocker portion is provided inside the vehicle body rocker portion, The reinforcing material is formed by forming a light alloy such as an aluminum alloy having a partition wall that is partially in contact with the surface and that is continuous in the longitudinal direction in the interior thereof with a hollow cross-section. A reinforcing structure for a vehicle body rocker portion, which is fitted and inserted so as to be on an outer extension line of the floor portion connecting the above or an outer extension line of a ridgeline of a floor cross member.
線とほぼ平行にそれぞれ配設されるとともに、車体中心
線と直交するように設けられたフロアクロスメンバの両
端が連結される中空断面のロッカ部の内部に補強材を嵌
挿してこのロッカ部を補強する車体ロッカ部の補強構造
において、 前記車体ロッカ部内に、その内部に長手方向に連続する
仕切壁を有するアルミニウム合金等の軽合金を断面中空
状に形成された前記補強材を嵌挿するとともに、前記仕
切壁が、前記フロア部に対して９０度未満の所定の角度
を成すように斜め上方に向けて配設されていることを特
徴とする車体ロッカ部の補強構造。2. A hollow cross section to which both ends of a floor cross member, which are arranged on both the left and right outer sides of a vehicle body floor portion substantially in parallel with the vehicle body centerline and which are provided so as to be orthogonal to the vehicle body centerline, are connected. In a reinforcing structure of a vehicle body rocker portion for reinforcing the rocker portion by inserting a reinforcing material into the inside of the rocker portion, a light alloy such as an aluminum alloy having a partition wall continuous in the longitudinal direction inside the vehicle body rocker portion. And the partition wall is disposed obliquely upward so as to form a predetermined angle of less than 90 degrees with respect to the floor portion, while the reinforcing member having a hollow cross section is fitted and inserted. Reinforced structure for the vehicle body rocker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05303422A JP3109356B2 (en) | 1993-11-09 | 1993-11-09 | Reinforcement structure of body rocker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05303422A JP3109356B2 (en) | 1993-11-09 | 1993-11-09 | Reinforcement structure of body rocker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07132860A true JPH07132860A (en) | 1995-05-23 |
| JP3109356B2 JP3109356B2 (en) | 2000-11-13 |
Family
ID=17920829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05303422A Expired - Fee Related JP3109356B2 (en) | 1993-11-09 | 1993-11-09 | Reinforcement structure of body rocker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3109356B2 (en) |
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| US11427261B2 (en) | 2018-06-05 | 2022-08-30 | Nissan Motor Co., Ltd. | Vehicle body structure and method for manufacturing vehicle body |
| CN111186497A (en) * | 2018-11-14 | 2020-05-22 | 现代自动车株式会社 | Sill structure for vehicle |
| CN110525522A (en) * | 2019-08-21 | 2019-12-03 | 武汉格罗夫氢能汽车有限公司 | A kind of threshold girder construction of hydrogen energy automobile |
| CN110525522B (en) * | 2019-08-21 | 2023-10-27 | 中极氢能汽车(长治)有限公司 | Threshold beam structure of hydrogen energy automobile |
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| JP3109356B2 (en) | 2000-11-13 |
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