JP2007131143A - Side member structure for vehicle - Google Patents

Side member structure for vehicle Download PDF

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JP2007131143A
JP2007131143A JP2005325944A JP2005325944A JP2007131143A JP 2007131143 A JP2007131143 A JP 2007131143A JP 2005325944 A JP2005325944 A JP 2005325944A JP 2005325944 A JP2005325944 A JP 2005325944A JP 2007131143 A JP2007131143 A JP 2007131143A
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convex
reinforcement
vehicle
vertical
vehicle width
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Kenta Nomura
健太 野村
Akiyoshi Watanabe
明義 渡辺
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Toyota Motor Corp
トヨタ自動車株式会社
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Priority to JP2005325944A priority Critical patent/JP2007131143A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To improve rigidity and strength of a side member, while restricting increase of the weight. <P>SOLUTION: This side member structure is structured by connecting a vehicle cross direction outside wall part 28C of a side member side projecting part 28 formed by projecting outward in the vehicle cross direction and extended along the longitudinal direction of a front side member 10 and a vertical wall part 30C of a reinforcement side projecting part 30 formed by projecting inside in the vehicle cross direction in a vertical wall part 14C of a reinforcement 14, which is arranged inside a closed cross section part 24 and connected to a lower surface of an upper wall part 22B of the inner panel 22 at an upper wall part 14A thereof and connected to an upper surface of a lower wall part 22C of the inner panel 22 at a lower wall part 14B thereof, and extended along the longitudinal direction of the front side member 10 to a vehicle cross direction inside wall part 22A in the inner panel 22 of the front side member 100 structuring a nearly rectangular closed cross section part 24. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は自動車等の車両用サイドメンバ構造に係り、特に、サイドメンバの断面内部にリインホースメントを設けた車両用サイドメンバ構造に関する。   The present invention relates to a side member structure for a vehicle such as an automobile, and more particularly to a side member structure for a vehicle in which a reinforcement is provided inside a cross section of the side member.
従来から、サイドメンバの断面内部にリインホースメントを設けた車両用サイドメンバ構造が知られている(例えば、特許文献1参照)。この技術では、フロントサイドメンバの内部にリインホースメントをフロントサイドメンバの長手方向に沿って配置している。
特開平9−301218号公報
2. Description of the Related Art Conventionally, a vehicle side member structure in which a reinforcement is provided inside a cross section of a side member is known (see, for example, Patent Document 1). In this technique, a reinforcement is arranged inside the front side member along the longitudinal direction of the front side member.
JP-A-9-301218
しかしながら、特許文献1の車両用サイドメンバ構造では、矩形閉断面構造とされたフロントサイドメンバ内に、フロントサイドメンバとで矩形閉断面構造を形成するようにリインホースメントを配置しているので、各矩形閉断面構造の断面形状を大きくした場合には、各矩形閉断面構造の角部となる稜線の間隔が広くなる。この結果、隣接する稜線間の壁部の全域を十分に補強できず、剛性及び強度を向上するためには、板厚を厚くする等の対策が必要となり重量が増加する。   However, in the vehicle side member structure of Patent Document 1, since the reinforcement is arranged so as to form a rectangular closed cross-sectional structure with the front side member in the front side member having a rectangular closed cross-sectional structure, When the cross-sectional shape of each rectangular closed cross-sectional structure is increased, the interval between the ridge lines that are the corners of each rectangular closed cross-sectional structure is increased. As a result, the entire wall portion between adjacent ridge lines cannot be sufficiently reinforced, and in order to improve rigidity and strength, measures such as increasing the plate thickness are required, and the weight increases.
本発明は上記事実を考慮し、重量の増加を抑制しつつサイドメンバの剛性及び強度を向上できる車両用サイドメンバ構造を提供することが目的である。   In view of the above facts, an object of the present invention is to provide a vehicle side member structure capable of improving the rigidity and strength of a side member while suppressing an increase in weight.
請求項1記載の本発明は、車両の前後方向に沿って配置され、上壁部と下壁部と車幅方向内側壁部と車幅方向外側壁部とを備えた閉断面部が形成されたサイドメンバと、前記サイドメンバの車幅方向内側壁部又は車幅方向外側壁部に前記閉断面部の内側に向かって突出形成され、前記サイドメンバの長手方向に沿って伸びるサイドメンバ側凸部と、上壁部と下壁部と縦壁部とを備え前記閉断面部内に配置され、上壁部が前記サイドメンの上壁部に結合され、下壁部が前記サイドメンバの下壁部に結合されたリインホースメントと、前記リインホースメントの縦壁部に車幅方向内側又は車幅方向外側に向かって突出形成され、前記サイドメンバの長手方向に沿って伸び、前記サイドメンバ側凸部と結合されたリインホースメント側凸部と、を有することを特徴とする。   The present invention according to claim 1 is disposed along the longitudinal direction of the vehicle, and a closed cross-sectional portion including an upper wall portion, a lower wall portion, a vehicle width direction inner side wall portion, and a vehicle width direction outer side wall portion is formed. A side member, and a side member-side convex portion that is formed on the inner side wall portion or the outer side wall portion in the vehicle width direction of the side member so as to protrude toward the inside of the closed cross-sectional portion and extends along the longitudinal direction of the side member. And an upper wall portion, a lower wall portion, and a vertical wall portion, disposed in the closed cross-section portion, the upper wall portion being coupled to the upper wall portion of the side men, and the lower wall portion being a lower wall portion of the side member. Reinforcement coupled to the longitudinal wall portion of the reinforcement and projecting inward in the vehicle width direction or outward in the vehicle width direction, extending along the longitudinal direction of the side member, and protruding on the side member side Reinforcement side convex part combined with the part And wherein the Rukoto.
車両の前後方向に沿って配置され、上壁部と下壁部と車幅方向内側壁部と車幅方向外側壁部とを備えた閉断面部を有するサイドメンバの車幅方向内側壁部又は車幅方向外側壁部に閉断面部の内側に向かって突出形成され、サイドメンバの長手方向に沿って伸びるサイドメンバ側凸部と、上壁部と下壁部と縦壁部とを備え閉断面部内に配置され、上壁部がサイドメンの上壁部の下面に結合され、下壁部がサイドメンバの下壁部の上面に結合されたリインホースメントの縦壁部に車幅方向内側又は車幅方向外側に向かって突出形成され、サイドメンバの長手方向に沿って伸びるリインホースメント側凸部と、が結合されている。このため、サイドメンバ側凸部とリインホースメント側凸部とで形成される各稜線によって閉断面部を構成する各壁部における隣接する稜線の間隔が狭くなる。この結果、壁部の板厚を厚くすることなく、隣接する稜線間の壁部の全域を十分に補強できる。また、サイドメンバの閉断面部がサイドメンバ側凸部とリインホースメント側凸部とで分割されるため、閉断面部の数も増加する。   An inner wall portion in the vehicle width direction of a side member disposed along the front-rear direction of the vehicle and having a closed cross-sectional portion having an upper wall portion, a lower wall portion, a vehicle width direction inner wall portion, and a vehicle width direction outer wall portion, or A side member-side convex portion that is formed on the outer side wall portion in the vehicle width direction so as to protrude toward the inside of the closed cross section and extends along the longitudinal direction of the side member, and includes an upper wall portion, a lower wall portion, and a vertical wall portion. It is arranged in the cross section, the upper wall portion is coupled to the lower surface of the upper wall portion of the side men, and the lower wall portion is coupled to the upper surface of the lower wall portion of the side member on the inner wall in the vehicle width direction or Reinforcement-side convex portions that protrude outward in the vehicle width direction and extend along the longitudinal direction of the side members are coupled. For this reason, the space | interval of the adjacent ridgeline in each wall part which comprises a closed cross-section part becomes narrow with each ridgeline formed by the side member side convex part and the reinforcement side convex part. As a result, the entire wall portion between adjacent ridgelines can be sufficiently reinforced without increasing the plate thickness of the wall portion. Moreover, since the closed cross-section part of a side member is divided | segmented by the side member side convex part and the reinforcement side convex part, the number of closed cross-section parts also increases.
請求項2記載の本発明は、請求項1に記載の車両用サイドメンバ構造において、前記サイドメンバ側凸部が前記側壁部の上下方向中央部に形成されており、前記リインホースメント側凸部が前記縦壁部の上下方向中央部に形成されていることを特徴とする。   According to a second aspect of the present invention, in the vehicle side member structure according to the first aspect, the side member-side convex portion is formed at the center in the vertical direction of the side wall portion, and the reinforcement-side convex portion. Is formed in the vertical center of the vertical wall.
サイドメンバ側凸部が側壁部の上下方向中央部に形成されており、リインホースメント側凸部が縦壁部の上下方向中央部に形成されているため、各壁部のサイドメンバ側凸部又はリインホースメント側凸部の上下方向において稜線の間隔を同じにできる。この結果、各壁部のサイドメンバ側凸部又はリインホースメント側凸部の上下方向の部位においてそれぞれの剛性及び強度を効果的に向上できる。   Since the side member side convex part is formed in the vertical center part of the side wall part and the reinforcement side convex part is formed in the vertical part center part of the vertical wall part, the side member side convex part of each wall part Or the space | interval of a ridgeline can be made the same in the up-down direction of a reinforcement side convex part. As a result, the rigidity and strength of each wall portion can be effectively improved at the side member side convex portion or the reinforcement-side convex portion in the vertical direction.
請求項3記載の本発明は、請求項1に記載の車両用サイドメンバ構造において、前記サイドメンバ側凸部と前記リインホースメント側凸部とはそれぞれ上壁部と下壁部と縦壁部を備えており、各縦壁部が互いに接合されていることを特徴とする。   According to a third aspect of the present invention, in the vehicle side member structure according to the first aspect, the side member-side convex portion and the reinforcement-side convex portion are respectively an upper wall portion, a lower wall portion, and a vertical wall portion. The vertical wall portions are joined to each other.
サイドメンバ側凸部とリインホースメント側凸部とはそれぞれ上壁部と下壁部と縦壁部を備えており、各縦壁部が互いに接合されている。このため、サイドメンバ側凸部とリインホースメント側凸部とがそれぞれ4本の稜線を有しており、これらの稜線によって稜線の数が増え、サイドメンバ側凸部又はリインホースメント側凸部が形成された壁部の稜線の間隔を狭くできる。この結果、サイドメンバ側凸部又はリインホースメント側凸部が形成された壁部の剛性及び強度を効果的に向上できる。   The side member-side convex portion and the reinforcement-side convex portion each include an upper wall portion, a lower wall portion, and a vertical wall portion, and the vertical wall portions are joined to each other. For this reason, the side member side convex part and the reinforcement side convex part have four ridge lines, respectively, and the number of ridge lines increases by these ridge lines, and the side member side convex part or the reinforcement side convex part. It is possible to narrow the interval between the ridgelines of the wall portion on which the is formed. As a result, the rigidity and strength of the wall portion on which the side member-side convex portion or the reinforcement-side convex portion is formed can be effectively improved.
請求項1記載の本発明は重量の増加を抑制しつつサイドメンバの剛性及び強度を向上できる。   The present invention according to claim 1 can improve the rigidity and strength of the side member while suppressing an increase in weight.
請求項2記載の本発明は重量の増加を抑制しつつサイドメンバの剛性及び強度を更に向上できる。   The present invention according to claim 2 can further improve the rigidity and strength of the side member while suppressing an increase in weight.
請求項3記載の本発明は重量の増加を抑制しつつサイドメンバの剛性及び強度を更に向上できる。   The present invention according to claim 3 can further improve the rigidity and strength of the side member while suppressing an increase in weight.
本発明における車両用サイドメンバ構造の第1実施形態を図1〜図3に従って説明する。   1st Embodiment of the side member structure for vehicles in this invention is described according to FIGS.
なお、図中矢印UPは車両上方方向を示し、図中矢印FRは車両前方方向を示し、図中矢印INは車幅内側方向を示している。   In the figure, the arrow UP indicates the vehicle upward direction, the arrow FR in the figure indicates the vehicle forward direction, and the arrow IN in the figure indicates the vehicle width inside direction.
図3に示される如く、本実施形態のフロントサイドメンバ10は、車両前部の車幅方向両端下部近傍に長手方向を車両前後方向に沿って左右一対配置されている。また、左右のフロントサイドメンバ10の間にはフロントサブフレーム12が配置されており、フロントサブフレーム12は左右のフロントサイドメンバ10にゴムマウント(図示省略)を介して取付けられている。   As shown in FIG. 3, the front side member 10 of the present embodiment is disposed in a pair of left and right in the longitudinal direction along the vehicle front-rear direction in the vicinity of the lower portions of both ends in the vehicle width direction of the front portion of the vehicle. A front subframe 12 is disposed between the left and right front side members 10, and the front subframe 12 is attached to the left and right front side members 10 via rubber mounts (not shown).
なお、フロントサブフレーム12の平面視形状(車両上方から見た形状)は井型状とされており、フロントサブフレーム12には図示を省略したサスペンション、エンジン等が組付けられている。   The front subframe 12 has a well-like shape in plan view (viewed from above the vehicle), and a suspension, an engine, etc. (not shown) are assembled to the front subframe 12.
図2に示される如く、フロントサイドメンバ10の前端10Aには、図示を省略したフロントバンパリインホースメントが取付けられている。また、フロントサイドメンバ10内の車両前後方向中間部にはリインホースメント14が配置されており、リインホースメント14は長手方向をフロントサイドメンバ10の長手方向(車両前後方向)に沿って配置されている。   As shown in FIG. 2, a front bumper reinforcement (not shown) is attached to the front end 10 </ b> A of the front side member 10. Further, a reinforcement 14 is disposed in the middle part of the front side member 10 in the vehicle longitudinal direction, and the reinforcement 14 is disposed along the longitudinal direction of the front side member 10 (vehicle longitudinal direction). ing.
図1に示される如く、フロントサイドメンバ10は、フロントサイドメンバ10の車幅方向外側部を構成するフロントサイドメンバアウタパネル(以下アウタパネルという)20とフロントサイドメンバ10の車幅方向内側部を構成するフロントサイドメンバインナパネル(以下インナパネルという)22とを備えており、アウタパネル20とインナパネル22とで矩形状(略四角形状)の閉断面部24を構成している。また、リインホースメント14は閉断面部24内に配置されている。   As shown in FIG. 1, the front side member 10 constitutes a front side member outer panel (hereinafter referred to as an outer panel) 20 that constitutes an outer portion in the vehicle width direction of the front side member 10 and an inner portion in the vehicle width direction of the front side member 10. A front side member inner panel (hereinafter referred to as an inner panel) 22 is provided, and the outer panel 20 and the inner panel 22 constitute a rectangular (substantially rectangular) closed section 24. Further, the reinforcement 14 is disposed in the closed cross section 24.
なお、閉断面部とは、対象とする断面の外周部が実質的に連続して高強度及び高剛性になっている断面構造であって、実質的にとは、対象とする断面が外周長に比べて小さな孔等が部分的に形成されていても、断面の直角方向(図1に示す閉断面部24の場合は図面の手前側又は奥側)では孔等が無く、周囲の部材が連続している構成も含むことを意味する。   The closed cross-sectional portion is a cross-sectional structure in which the outer peripheral portion of the target cross section is substantially continuous and has high strength and high rigidity, and the target cross section is substantially the outer peripheral length. Even if a small hole or the like is partially formed in comparison with FIG. 1, there is no hole or the like in the direction perpendicular to the cross section (in the case of the closed cross section 24 shown in FIG. It is meant to include a continuous configuration.
アウタパネル20はフロントサイドメンバ10の車幅方向外側壁部を構成する車幅方向外側壁部(縦壁部)20Aを備えており、車幅方向外側壁部20Aの上端縁部には車両上方へ向って上フランジ20Bが、車幅方向外側壁部20Aの下端縁部には車両下方へ向ってフランジ20Cが、それぞれ形成されている。   The outer panel 20 includes a vehicle width direction outer wall portion (vertical wall portion) 20A that constitutes a vehicle width direction outer wall portion of the front side member 10, and an upper end edge of the vehicle width direction outer wall portion 20A faces upward of the vehicle. An upper flange 20B is formed facing the lower end edge of the vehicle width direction outer wall portion 20A, and a flange 20C is formed facing the vehicle downward.
アウタパネル20の車幅方向外側壁部20Aの車両上下方向中央部には、閉断面部24の内側となる車幅方向内側に向かってサイドメンバ側凸部26が突出形成されており、サイドメンバ側凸部26はフロントサイドメンバ10の長手方向に沿って伸びている。即ち、サイドメンバ側凸部26は長手方向を車体前後方向に沿って配置されている。また、サイドメンバ側凸部26は上壁部(横壁部)26Aと下壁部(横壁部)26B及び上壁部26Aの車幅方向内側端と下壁部26Bの車幅方向内側端とを連結する縦壁部26Cとを備えている。従って、アウタパネル20の車幅方向外側壁部20Aにサイドメンバ側凸部26を形成したことで、車幅方向外側壁部20Aの上下方向中央部に車両前後方向に伸びる4本の稜線L1、L2、L3、L4が形成されている。   A side member-side convex portion 26 is formed so as to protrude toward the vehicle width direction inner side which is the inner side of the closed cross-section portion 24 at the vehicle vertical direction center portion of the vehicle width direction outer side wall portion 20A of the outer panel 20. The convex portion 26 extends along the longitudinal direction of the front side member 10. That is, the side member-side convex portions 26 are arranged with the longitudinal direction along the longitudinal direction of the vehicle body. The side member-side convex portion 26 includes an upper wall portion (horizontal wall portion) 26A, a lower wall portion (horizontal wall portion) 26B, an inner end in the vehicle width direction of the upper wall portion 26A, and an inner end in the vehicle width direction of the lower wall portion 26B. And a vertical wall portion 26C to be connected. Therefore, by forming the side member-side convex portion 26 on the outer wall portion 20A in the vehicle width direction of the outer panel 20, the four ridge lines L1, L2 extending in the vehicle front-rear direction at the center portion in the vertical direction of the outer wall portion 20A in the vehicle width direction. , L3, and L4 are formed.
一方、インナパネル22は、フロントサイドメンバ10の車幅方向内側壁部を構成する車幅方向内側壁部(縦壁部)22Aと、フロントサイドメンバ10の上壁部を構成する上壁部22Bと、フロントサイドメンバ10の下壁部を構成する下壁部22Cとを備えている。また、インナパネル22の上壁部22Bの車幅方向外側端部には、車両上方へ向ってフランジ22Dが形成されており、インナパネル22の下壁部22Cの車幅方向外側端部には、車両下方へ向ってフランジ22Eが形成されている。   On the other hand, the inner panel 22 includes a vehicle width direction inner wall portion (vertical wall portion) 22 </ b> A constituting the vehicle width direction inner wall portion of the front side member 10, and an upper wall portion 22 </ b> B constituting the upper wall portion of the front side member 10. And a lower wall portion 22 </ b> C constituting the lower wall portion of the front side member 10. Further, a flange 22D is formed at the vehicle width direction outer side end portion of the upper wall portion 22B of the inner panel 22 toward the vehicle upper side, and a vehicle width direction outer end portion of the lower wall portion 22C of the inner panel 22 is formed at the vehicle width direction outer end portion. A flange 22E is formed toward the vehicle lower side.
また、インナパネル22のフランジ22Dとアウタパネル20のフランジ20Bとが溶接により互いに接合されており、インナパネル22のフランジ22Eとアウタパネル20のフランジ20Cとが溶接により互いに接合されている。   Further, the flange 22D of the inner panel 22 and the flange 20B of the outer panel 20 are joined to each other by welding, and the flange 22E of the inner panel 22 and the flange 20C of the outer panel 20 are joined to each other by welding.
インナパネル22の車幅方向内側壁部22Aの車両上下方向中央部には、サイドメンバ側凸部28が車幅方向外側に向かって突出形成されており、サイドメンバ側凸部28はフロントサイドメンバ10の長手方向に沿って伸びている。即ち、サイドメンバ側凸部28は長手方向を車体前後方向に沿って配置されている。   A side member-side convex portion 28 is formed to protrude outward in the vehicle width direction at the vehicle vertical direction central portion of the inner width portion 22A of the inner panel 22 in the vehicle width direction, and the side member-side convex portion 28 is a front side member. 10 extends along the longitudinal direction. That is, the side member-side convex portion 28 is disposed along the longitudinal direction of the vehicle body in the longitudinal direction.
サイドメンバ側凸部28は上壁部(横壁部)28Aと、下壁部(横壁部)28Bと、上壁部28Aの車幅方向外側端と下壁部28Bの車幅方向外側端とを連結する縦壁部28Cとを備えている。従って、インナパネル22の車幅方向内側壁部22Aにサイドメンバ側凸部28を形成したことで、車幅方向内側壁部22Aの上下方向中央部に車両前後方向に伸びる4本の稜線L5、L6、L7、L8が形成されている。   The side member side convex portion 28 includes an upper wall portion (lateral wall portion) 28A, a lower wall portion (lateral wall portion) 28B, an outer end in the vehicle width direction of the upper wall portion 28A, and an outer end in the vehicle width direction of the lower wall portion 28B. And a vertical wall portion 28C to be connected. Accordingly, by forming the side member side convex portion 28 on the inner side wall portion 22A of the inner panel 22 in the vehicle width direction, four ridge lines L5 extending in the vehicle front-rear direction at the center portion in the vertical direction of the inner side wall portion 22A of the vehicle width direction, L6, L7, and L8 are formed.
一方、リインホースメント14は上壁部14Aと、下壁部14Bと、上壁部14Aの車幅方向内側端と下壁部14Bの車幅方向内側端とを連結する縦壁部14Cとを備えている。また、リインホースメント14の上壁部14Aは、インナパネル22の上壁部22Bの下面に溶接により接合されており、リインホースメント14の下壁部14Bは、インナパネル22の下壁部22Cの上面に溶接により接合されている。   On the other hand, the reinforcement 14 includes an upper wall portion 14A, a lower wall portion 14B, and a vertical wall portion 14C that connects an inner end in the vehicle width direction of the upper wall portion 14A and an inner end in the vehicle width direction of the lower wall portion 14B. I have. The upper wall portion 14A of the reinforcement 14 is joined to the lower surface of the upper wall portion 22B of the inner panel 22 by welding, and the lower wall portion 14B of the reinforcement 14 is connected to the lower wall portion 22C of the inner panel 22. It is joined to the upper surface by welding.
従って、リインホースメント14によってフロントサイドメンバ10の閉断面部24が車幅方向内側部24Aと車幅方向外側部24Bとに2分割されている。   Therefore, the closed cross section 24 of the front side member 10 is divided into the vehicle width direction inner side portion 24A and the vehicle width direction outer side portion 24B by the reinforcement 14 in two.
リインホースメント14の縦壁部14Cの車両上下方向中央部には、リインホースメント側凸部30が車幅方向内側に向かって突出形成されており、リインホースメント側凸部30はフロントサイドメンバ10の長手方向に沿って伸びている。即ち、リインホースメント側凸部30は長手方向を車体前後方向に沿って配置されている。   A reinforcement-side convex portion 30 is formed at the vehicle vertical direction center portion of the vertical wall portion 14C of the reinforcement 14 so as to protrude inward in the vehicle width direction, and the reinforcement-side convex portion 30 is a front side member. 10 extends along the longitudinal direction. That is, the reinforcement side convex part 30 is arrange | positioned along the vehicle body front-back direction in the longitudinal direction.
リインホースメント側凸部30は上壁部(横壁部)30Aと、下壁部(横壁部)30Bと、上壁部30Aの車幅方向内側端と下壁部30Bの車幅方向内側端とを連結する縦壁部30Cとを備えている。従って、リインホースメント14の縦壁部14Cにリインホースメント側凸部30を形成したことで、縦壁部14Cの上下方向中央部に車両前後方向に伸びる4本の稜線L9、L10、L11、L12が形成されている。   The reinforcement-side convex portion 30 includes an upper wall portion (horizontal wall portion) 30A, a lower wall portion (horizontal wall portion) 30B, an inner end in the vehicle width direction of the upper wall portion 30A, and an inner end in the vehicle width direction of the lower wall portion 30B. And a vertical wall portion 30C for connecting the two. Therefore, by forming the reinforcement side convex portion 30 on the vertical wall portion 14C of the reinforcement 14, the four ridgelines L9, L10, L11 extending in the vehicle front-rear direction at the vertical center portion of the vertical wall portion 14C, L12 is formed.
また、サイドメンバ側凸部28の縦壁部28Cの上下幅H1と、リインホースメント側凸部30の縦壁部30Cの上下幅H2とは等しくなっており(H1=H2)、サイドメンバ側凸部28の縦壁部28Cの車幅方向外側面と、リインホースメント側凸部30の縦壁部30Cの車幅方向内側面とが溶接により互いに接合されている。   Further, the vertical width H1 of the vertical wall portion 28C of the side member-side convex portion 28 is equal to the vertical width H2 of the vertical wall portion 30C of the reinforcement-side convex portion 30 (H1 = H2). A vehicle width direction outer side surface of the vertical wall portion 28C of the convex portion 28 and a vehicle width direction inner side surface of the vertical wall portion 30C of the reinforcement side convex portion 30 are joined to each other by welding.
従って、サイドメンバ側凸部28とリインホースメント側凸部30との結合によって、フロントサイドメンバ10の閉断面部24における車幅方向内側部24Aが上下に2分割されており、閉断面部24は3分割されている。即ち、フロントサイドメンバ10には閉断面部が3つ形成されている。   Accordingly, the inner side 24A in the vehicle width direction of the closed cross section 24 of the front side member 10 is vertically divided into two by the coupling of the side member side convex portion 28 and the reinforcement side convex portion 30, and the closed cross section 24 Is divided into three parts. That is, the front side member 10 has three closed cross sections.
次に、本実施形態の作用を説明する。   Next, the operation of this embodiment will be described.
本実施形態では、図1に示される如く、断面形状が略矩形状の閉断面部24を構成するフロントサイドメンバ10のインナパネル22における車幅方向内側壁部22Aに車幅方向外側に向かって突出形成され、フロントサイドメンバ10の長手方向に沿って伸びるサイドメンバ側凸部28の縦壁部28Cと、閉断面部24内に配置され、上壁部14Aがインナパネル22の上壁部22Bの下面に結合され、下壁部14Bがインナパネル22の下壁部22Cの上面に結合されたリインホースメント14の縦壁部14Cに車幅方向内側に向かって突出形成され、フロントサイドメンバ10の長手方向に沿って伸びるリインホースメント側凸部30の縦壁部30Cと、が結合されている。   In the present embodiment, as shown in FIG. 1, the inner side wall portion 22A in the vehicle width direction of the inner panel 22 of the front side member 10 constituting the closed cross-section portion 24 having a substantially rectangular cross section is directed outward in the vehicle width direction. The side wall-side convex portion 28C is formed so as to protrude and extend along the longitudinal direction of the front side member 10, and is disposed in the closed section 24, and the upper wall portion 14A is the upper wall portion 22B of the inner panel 22. The lower wall portion 14B is coupled to the upper surface of the lower wall portion 22C of the inner panel 22 so as to protrude inward in the vehicle width direction, and is thus formed in the front side member 10. The vertical wall portion 30C of the reinforcement-side convex portion 30 that extends along the longitudinal direction is coupled.
この結果、サイドメンバ側凸部28によってインナパネル22における車幅方向内側壁部22Aの上下の稜線L13、L14の間に4本の稜線L5、L6、L7、L8が形成され、各稜線の間隔が狭くなるため、稜線L13と稜線L14との間の車幅方向内側壁部22Aの剛性及び強度を向上できる。また、リインホースメント側凸部30によってリインホースメント14における縦壁部14Cの上下の稜線L15、L16の間に4本の稜線L9、L10、L11、L12が形成され、各稜線の間隔が狭くなるため、稜線L15と稜線L16との間の縦壁部14Cの剛性及び強度を向上できる。更に、サイドメンバ側凸部28とリインホースメント側凸部30との結合によって、フロントサイドメンバ10の閉断面部24における車幅方向内側部24Aが上下に2分割され、フロントサイドメンバ10には閉断面部が3つ形成される。   As a result, four ridge lines L5, L6, L7, and L8 are formed between the upper and lower ridge lines L13 and L14 of the inner side wall portion 22A of the inner panel 22 by the side member side convex portion 28, and the intervals between the respective ridge lines Therefore, the rigidity and strength of the inner side wall portion 22A in the vehicle width direction between the ridge line L13 and the ridge line L14 can be improved. Moreover, four ridgelines L9, L10, L11, and L12 are formed between the upper and lower ridgelines L15 and L16 of the vertical wall portion 14C in the reinforcement 14 by the reinforcement-side convex portion 30, and the interval between the ridgelines is narrow. Therefore, the rigidity and strength of the vertical wall portion 14C between the ridge line L15 and the ridge line L16 can be improved. Further, the side member-side convex portion 28 and the reinforcement-side convex portion 30 are coupled to each other so that the vehicle width direction inner side portion 24A of the closed cross-sectional portion 24 of the front side member 10 is vertically divided into two parts. Three closed cross sections are formed.
即ち、本実施形態では、フロントサイドメンバ10の閉断面部24において隣接する各稜線の間隔が広くなるのを防止できると共に閉断面部の数も増加できる。この結果、フロントサイドメンバ10とリインホースメント14との各板厚を厚くする必要が無いため、重量の増加を抑制しつつフロントサイドメンバ10の剛性及び強度を向上できる。   That is, in the present embodiment, it is possible to prevent the interval between adjacent ridge lines in the closed cross section 24 of the front side member 10 from being widened, and to increase the number of closed cross sections. As a result, since it is not necessary to increase the thickness of each of the front side member 10 and the reinforcement 14, the rigidity and strength of the front side member 10 can be improved while suppressing an increase in weight.
従って、車両前突時等にフロントサイドメンバ10に車両前方側から衝突荷重が作用した場合には、フロントサイドメンバ10の変形を抑制できる(耐力を向上できる)。   Accordingly, when a collision load is applied to the front side member 10 from the front side of the vehicle at the time of a frontal collision of the vehicle, the deformation of the front side member 10 can be suppressed (strength can be improved).
また、本実施形態では、サイドメンバ側凸部28がインナパネル22の車幅方向内側壁部22Aの上下方向中央部に形成されているため、稜線L13と稜線L5の間隔H3と稜線L8と稜線L14の間隔H4とを同じにできる(H3=H4)。この結果、インナパネル22の車幅方向内側壁部22Aにおけるサイドメンバ側凸部28の上下方向の各部位においてそれぞれ剛性及び強度を効果的に向上できる。   In the present embodiment, since the side member-side convex portion 28 is formed at the center in the vertical direction of the inner side wall portion 22A of the inner panel 22, the distance H3 between the ridgeline L13 and the ridgeline L5, the ridgeline L8, and the ridgeline The interval H4 of L14 can be made the same (H3 = H4). As a result, the rigidity and strength can be effectively improved at each of the portions in the vertical direction of the side member-side convex portion 28 in the inner side wall portion 22A of the inner panel 22 in the vehicle width direction.
同様に、リインホースメント側凸部30がリインホースメント14の縦壁部14Cの上下方向中央部に形成されているため、稜線L15と稜線L9の間隔H3と稜線L12と稜線L16の間隔H4とを同じにできる。この結果、リインホースメント14の縦壁部14Cにおけるリインホースメント側凸部30の上下方向の各部位においてそれぞれ剛性及び強度を効果的に向上できる。   Similarly, since the reinforcement side convex part 30 is formed in the vertical direction center part of the vertical wall part 14C of the reinforcement 14, the distance H3 between the ridgeline L15 and the ridgeline L9, and the distance H4 between the ridgeline L12 and the ridgeline L16, Can be the same. As a result, it is possible to effectively improve the rigidity and strength in each of the vertical portions of the reinforcement-side convex portion 30 in the vertical wall portion 14 </ b> C of the reinforcement 14.
従って、本実施形態では、閉断面構造とされたサイドメンバ10の剛性及び強度を更に向上できる。   Therefore, in this embodiment, the rigidity and strength of the side member 10 having a closed cross-sectional structure can be further improved.
次に、本発明における車両用サイドメンバ構造の第2実施形態を図4に従って説明する。   Next, a second embodiment of the vehicle side member structure according to the present invention will be described with reference to FIG.
図4に示される如く、本実施形態では、リインホースメント側凸部30が車幅方向外側に向って突出されており、リインホースメント側凸部30の縦壁部30Cが、アウタパネル20のサイドメンバ側凸部26の縦壁部26Cに溶接により接合されている。   As shown in FIG. 4, in this embodiment, the reinforcement side convex portion 30 protrudes outward in the vehicle width direction, and the vertical wall portion 30 </ b> C of the reinforcement side convex portion 30 is formed on the side of the outer panel 20. The member side convex portion 26 is joined to the vertical wall portion 26C by welding.
従って、本実施形態でも第1実施形態と同様な作用効果が得られる。   Therefore, this embodiment can provide the same effects as those of the first embodiment.
以上に於いては、本発明を特定の実施形態について詳細に説明したが、本発明は上記各実施形態に限定されるものではなく、本発明の範囲内にて他の種々の実施形態が可能であることは当業者にとって明らかである。例えば、上記各実施形態では、サイドメンバ側凸部26、28及びリインホースメント側凸部30を、フロントサイドメンバ10の閉断面部24の上下方向中央部に1個形成したが、これに代えて、サイドメンバ側凸部26、28及びリインホースメント側凸部30を、フロントサイドメンバ10の閉断面部24の上下方向に所定の間隔を開けて複数個形成した構成としても良い。   In the above, the present invention has been described in detail for specific embodiments. However, the present invention is not limited to the above-described embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, in each of the above embodiments, one side member-side convex portion 26, 28 and one reinforcement-side convex portion 30 are formed at the central portion in the vertical direction of the closed cross-sectional portion 24 of the front side member 10, but this is replaced. Thus, a plurality of the side member side convex portions 26 and 28 and the reinforcement side convex portion 30 may be formed at predetermined intervals in the vertical direction of the closed section 24 of the front side member 10.
また、上記各実施形態では、サイドメンバ側凸部26、28及びリインホースメント側凸部30を、それぞれ上壁部、下壁部、縦壁部を備えた断面コ字状としたが、サイドメンバ側凸部26、28及びリインホースメント側凸部30の断面形状はコ字状に限定されず、三角形状や円弧状等の他の断面形状としても良い。   Moreover, in each said embodiment, although the side member side convex parts 26 and 28 and the reinforcement side convex part 30 were each made into the U-shaped cross section provided with the upper wall part, the lower wall part, and the vertical wall part, The cross-sectional shapes of the member-side convex portions 26 and 28 and the reinforcement-side convex portion 30 are not limited to the U-shape, and may be other cross-sectional shapes such as a triangular shape or an arc shape.
また、上記各実施形態では、フロントサイドメンバ10の断面形状を矩形状(略四角形状)としたが、フロントサイドメンバ10の断面形状は略四角形状に限定されず、上壁部と下壁部と車幅方向内側壁部と車幅方向外側壁部とを備えている断面形状であれば、五角形状、六角形状等の他の断面形状であっても良い。   In each of the above embodiments, the cross-sectional shape of the front side member 10 is a rectangular shape (substantially square shape). However, the cross-sectional shape of the front side member 10 is not limited to a substantially square shape, and the upper wall portion and the lower wall portion. Other cross-sectional shapes such as a pentagonal shape and a hexagonal shape may be used as long as the cross-sectional shape includes an inner wall portion in the vehicle width direction and an outer wall portion in the vehicle width direction.
また、上記各実施形態では、本発明の車両用サイドメンバ構造をフロントサイドメンバ10に適用したが、本発明の車両用サイドメンバ構造はフロントサイドメンバ10以外のリヤサイドメンバや他のサイドメンバにも適用可能である。   In each of the above embodiments, the vehicle side member structure of the present invention is applied to the front side member 10. However, the vehicle side member structure of the present invention is applied to a rear side member other than the front side member 10 and other side members. Applicable.
図2の1−1線に沿った拡大断面図である。FIG. 3 is an enlarged sectional view taken along line 1-1 of FIG. 本発明の第1実施形態に係る車両用サイドメンバ構造を示す車幅方向内側から見た側面図である。It is the side view seen from the vehicle width direction inside which shows the side member structure for vehicles concerning a 1st embodiment of the present invention. 本発明の第1実施形態に係る車両用サイドメンバ構造が適用された車体前部を示す概略平面図である。1 is a schematic plan view showing a vehicle body front portion to which a vehicle side member structure according to a first embodiment of the present invention is applied. 本発明の第2実施形態に係る車両用サイドメンバ構造を示す図1に対応する断面図である。It is sectional drawing corresponding to FIG. 1 which shows the vehicle side member structure which concerns on 2nd Embodiment of this invention.
符号の説明Explanation of symbols
10 フロントサイドメンバ
14 リインホースメント
14A リインホースメントの上壁部
14B リインホースメントの下壁部
14C リインホースメントの縦壁部
20 フロントサイドメンバアウタパネル
20A フロントサイドメンバの車幅方向外側壁部
22 フロントサイドメンバインナパネル
22A フロントサイドメンバインナパネルの車幅方向内側壁部
22B フロントサイドメンバインナパネルの上壁部
22C フロントサイドメンバインナパネルの下壁部
24 フロントサイドメンバの閉断面構造
24A 閉断面構造の車幅方向内側部
24B 閉断面構造の車幅方向外側部
26 サイドメンバ側凸部
26A サイドメンバ側凸部の上壁部
26B サイドメンバ側凸部の下壁部
26C サイドメンバ側凸部の縦壁部
28 サイドメンバ側凸部
28A サイドメンバ側凸部の上壁部
28B サイドメンバ側凸部の下壁部
28C サイドメンバ側凸部の縦壁部
30 リインホースメント側凸部
30A リインホースメント側凸部の上壁部
30B リインホースメント側凸部の下壁部
30C リインホースメント側凸部の縦壁部
L1〜L16 稜線
DESCRIPTION OF SYMBOLS 10 Front side member 14 Reinforcement 14A Upper wall part of reinforcement 14B Lower wall part of reinforcement 14C Vertical wall part of reinforcement 20 Front side member outer panel 20A Front side member width direction outer side wall part 22 Front Side member inner panel 22A Front side member inner panel inner wall portion in the vehicle width direction 22B Front side member inner panel upper wall portion 22C Front side member inner panel lower wall portion 24 Front side member closed sectional structure 24A Closed sectional structure Vehicle width direction inner side portion 24B Vehicle width direction outer side portion of closed cross-section structure 26 Side member side convex portion 26A Side member side convex portion upper wall portion 26B Side member side convex portion lower wall portion 26C Side member side convex portion vertical wall Part 28 Side member side Convex part 28A Upper wall part of side member side convex part 28B Lower wall part of side member side convex part 28C Vertical wall part of side member side convex part 30 Reinforcement side convex part 30A Upper wall part of reinforcement side convex part 30B Lower wall portion of the reinforcement-side convex portion 30C Vertical wall portion of the reinforcement-side convex portion L1 to L16 Ridge line

Claims (3)

  1. 車両の前後方向に沿って配置され、上壁部と下壁部と車幅方向内側壁部と車幅方向外側壁部とを備えた閉断面部が形成されたサイドメンバと、
    前記サイドメンバの車幅方向内側壁部又は車幅方向外側壁部に前記閉断面部の内側に向かって突出形成され、前記サイドメンバの長手方向に沿って伸びるサイドメンバ側凸部と、
    上壁部と下壁部と縦壁部とを備え前記閉断面部内に配置され、上壁部が前記サイドメンの上壁部に結合され、下壁部が前記サイドメンバの下壁部に結合されたリインホースメントと、
    前記リインホースメントの縦壁部に車幅方向内側又は車幅方向外側に向かって突出形成され、前記サイドメンバの長手方向に沿って伸び、前記サイドメンバ側凸部と結合されたリインホースメント側凸部と、
    を有することを特徴とする車両用サイドメンバ構造。
    A side member disposed along the front-rear direction of the vehicle and having a closed cross-section formed with an upper wall portion, a lower wall portion, a vehicle width direction inner wall portion, and a vehicle width direction outer wall portion;
    A side member-side convex portion that is formed to protrude toward the inside of the closed cross-sectional portion on the inner side wall portion or the outer side wall portion in the vehicle width direction of the side member, and extends along the longitudinal direction of the side member;
    An upper wall portion, a lower wall portion, and a vertical wall portion are disposed in the closed cross-section portion, the upper wall portion is coupled to the upper wall portion of the side men, and the lower wall portion is coupled to the lower wall portion of the side member. Reinforcement,
    Reinforcement side projectingly formed on the vertical wall portion of the reinforcement toward the vehicle width direction inner side or the vehicle width direction outer side, extending along the longitudinal direction of the side member, and coupled to the side member side convex portion A convex part,
    A vehicle side member structure characterized by comprising:
  2. 前記サイドメンバ側凸部が前記側壁部の上下方向中央部に形成されており、前記リインホースメント側凸部が前記縦壁部の上下方向中央部に形成されていることを特徴とする請求項1に記載の車両用サイドメンバ構造。   The said side member side convex part is formed in the up-down direction center part of the said side wall part, The said reinforcement side convex part is formed in the up-down direction center part of the said vertical wall part, It is characterized by the above-mentioned. The vehicle side member structure according to claim 1.
  3. 前記サイドメンバ側凸部と前記リインホースメント側凸部とはそれぞれ上壁部と下壁部と縦壁部を備えており、各縦壁部が互いに接合されていることを特徴とする請求項1に記載の車両用サイドメンバ構造。   The said side member side convex part and the said reinforcement side convex part are each provided with the upper wall part, the lower wall part, and the vertical wall part, and each vertical wall part is mutually joined. The vehicle side member structure according to claim 1.
JP2005325944A 2005-11-10 2005-11-10 Side member structure for vehicle Pending JP2007131143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005325944A JP2007131143A (en) 2005-11-10 2005-11-10 Side member structure for vehicle

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009214747A (en) * 2008-03-11 2009-09-24 Honda Motor Co Ltd Vehicular front side frame
US8746781B2 (en) 2012-08-20 2014-06-10 Hyundai Motor Company Reinforcing unit for vehicle body
US10343721B2 (en) 2017-08-09 2019-07-09 Hyundai Motor Company Front vehicle body reinforcing structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49111315A (en) * 1973-02-26 1974-10-23
JPS63265773A (en) * 1987-04-23 1988-11-02 Mazda Motor Corp Underbody structure of automobile
JPH08108863A (en) * 1994-10-12 1996-04-30 Honda Motor Co Ltd Front side frame structure of automobile
JP2000203451A (en) * 1999-01-18 2000-07-25 Isuzu Motors Ltd Chassis frame collision safety structure of vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49111315A (en) * 1973-02-26 1974-10-23
JPS63265773A (en) * 1987-04-23 1988-11-02 Mazda Motor Corp Underbody structure of automobile
JPH08108863A (en) * 1994-10-12 1996-04-30 Honda Motor Co Ltd Front side frame structure of automobile
JP2000203451A (en) * 1999-01-18 2000-07-25 Isuzu Motors Ltd Chassis frame collision safety structure of vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009214747A (en) * 2008-03-11 2009-09-24 Honda Motor Co Ltd Vehicular front side frame
US8746781B2 (en) 2012-08-20 2014-06-10 Hyundai Motor Company Reinforcing unit for vehicle body
US10343721B2 (en) 2017-08-09 2019-07-09 Hyundai Motor Company Front vehicle body reinforcing structure

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