JPH05305877A - Reinforcing structure of frame - Google Patents

Reinforcing structure of frame

Info

Publication number
JPH05305877A
JPH05305877A JP11130992A JP11130992A JPH05305877A JP H05305877 A JPH05305877 A JP H05305877A JP 11130992 A JP11130992 A JP 11130992A JP 11130992 A JP11130992 A JP 11130992A JP H05305877 A JPH05305877 A JP H05305877A
Authority
JP
Japan
Prior art keywords
frame
wavy
amplitude
wavelength
ratio
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.)
Pending
Application number
JP11130992A
Other languages
Japanese (ja)
Inventor
Naoto Hirasaka
直人 平坂
Yasushi Matsumoto
保志 松本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP11130992A priority Critical patent/JPH05305877A/en
Publication of JPH05305877A publication Critical patent/JPH05305877A/en
Pending legal-status Critical Current

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  • Body Structure For Vehicles (AREA)

Abstract

PURPOSE:To improve the extent of frame verticalflexural rigidity and thereby prevent any possible sectional break of a frame from occurring by installing plural wavy parts of the same jogs in two longitudinal planes to be opposed, and setting the ratio of amplitude in the wavy part against a wavelength down to that of less than 0.25. CONSTITUTION:A frame 10 is being formed into a long-sized closed sectional structure almost made up in a rectangular form, and in two opposed longitudinal planes 10A and 10B of the frame 10, there is provided each of wavy parts 12 repeating the same jogs along the longitudinal direction of the frame 10. As for each of these wavy parts 12, its sectional form along the longitudinal direction of the frame 10 is made into a triangular form of a wavelength L of amplitude H, and the ratio H/L of the amplitude to the wavelength L is set down to that of less than 0.25. The frame 10 in suchlike structure is improved of its vertical flexural rigidity, and any sectional break is prevented from occurring. Furthermore, the wavy parts like the abovementioned are installed in all the four planes of the frame 10, and the ratio H/L is set down to less than 0.2, thus the extent of flexural rigidity in all directions is well improvable.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は自動車等に使用されるフ
レームの補強構造に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure for a frame used in an automobile or the like.

【0002】[0002]

【従来の技術】従来、自動車等に使用されるフレームに
おいては、フレームの曲げ剛性を向上させる構造が知ら
れており、その一例が実開平2−133981号に開示
されている。
2. Description of the Related Art Conventionally, in a frame used for an automobile or the like, a structure for improving bending rigidity of the frame is known, and an example thereof is disclosed in Japanese Utility Model Laid-Open No. 2-133981.

【0003】図11に示される如く、このフレームの補
強構造では、フレーム70が、断面コ字形で長尺状の本
体72と、この本体72の開口を掩蓋することによって
閉断面構造74を構成する長尺状のカバー76とで構成
されており、カバー76は長手方向に伸びるビード78
を有している。また、本体72の両脚部72A、72B
の先端からは、直角に伸びる一対のフランジ72C、7
2Dが形成されており、これらのフランジ72C、72
Dには、カバー76の両側縁に形成された一対のフラン
ジ76A、76Bが長手方向に沿って所定の間隔を隔て
てスポット溶接により接合されている。さらに、カバー
76のビード78には、長手方向に沿って所定の間隔を
隔ててカバー76のフランジ76A、76Bと略面一と
なる谷部80が形成されている。
As shown in FIG. 11, in the reinforcing structure of the frame, the frame 70 constitutes a main body 72 having a U-shaped cross section and a closed cross-section structure 74 by covering the opening of the main body 72. It is composed of a long cover 76, and the cover 76 is a bead 78 extending in the longitudinal direction.
have. Also, both legs 72A, 72B of the main body 72
A pair of flanges 72C, 7 extending at a right angle from the tip of the
2D is formed, these flanges 72C, 72C
A pair of flanges 76A and 76B formed on both side edges of the cover 76 are joined to D by spot welding along the longitudinal direction at a predetermined interval. Further, the bead 78 of the cover 76 is formed with a valley portion 80 which is substantially flush with the flanges 76A and 76B of the cover 76 at predetermined intervals along the longitudinal direction.

【0004】従って、このフレーム70に本体72の下
方からの曲げ力(図11及び図12の矢印F1)が作用
した場合には、カバー76のビード78に形成された複
数の谷部80が、これに作用する引張力に抗して、図1
2の想像線で示される様な本体72の両脚72A、72
Bの拡開が阻止され、フレーム70の曲げ剛性が向上す
るようになっている。
Therefore, when a bending force (arrow F1 in FIGS. 11 and 12) from below the main body 72 acts on the frame 70, a plurality of valleys 80 formed on the bead 78 of the cover 76 are Against the tensile force acting on this, Fig. 1
Both legs 72A, 72 of the main body 72 as shown by the imaginary line 2
The expansion of B is prevented, and the bending rigidity of the frame 70 is improved.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、このフ
レームの補強構造では、図12に示される如く、閉断面
構造74を潰す、本体72の側方からの力(図12の矢
印G)が作用した場合には、フレーム70が図12の想
像線で示される如く、断面崩れし易いという不具合があ
る。
However, in this frame reinforcing structure, as shown in FIG. 12, a force (arrow G in FIG. 12) from the side of the main body 72, which crushes the closed cross-section structure 74, acts. In this case, there is a problem that the cross section of the frame 70 easily collapses as shown by the imaginary line in FIG.

【0006】本発明は上記事実を考慮し、断面崩れを防
止することができるフレームの補強構造を得ることが目
的である。
In view of the above facts, an object of the present invention is to obtain a frame reinforcing structure capable of preventing the collapse of the cross section.

【0007】[0007]

【課題を解決するための手段】本発明の請求項1記載の
フレームの補強構造では、矩形閉断面を構成する長尺状
のフレームにおいて、対向する2つの縦面に長手方向に
沿って凹凸を繰り返す波状部を設けるとともに、前記波
状部の振幅の波長に対する比を0.25以下にしたこと
を特徴としている。
In the reinforcing structure for a frame according to claim 1 of the present invention, in an elongated frame having a rectangular closed cross section, two opposing vertical surfaces are provided with irregularities along the longitudinal direction. It is characterized in that repeated wavy portions are provided and the ratio of the amplitude of the wavy portions to the wavelength is 0.25 or less.

【0008】また、本発明の請求項2記載のフレームの
補強構造では、矩形閉断面を構成する長尺状のフレーム
において、4面全てに長手方向に沿って凹凸を繰り返す
波状部を設けるとともに、前記波状部の振幅の波長に対
する比を0.2以下にしたことを特徴としている。
In the reinforcing structure for a frame according to claim 2 of the present invention, in a long frame having a rectangular closed cross section, wavy portions that repeat unevenness along the longitudinal direction are provided on all four surfaces, The ratio of the amplitude of the wavy portion to the wavelength is 0.2 or less.

【0009】[0009]

【作用】本発明の請求項1記載のフレームの補強構造で
は、フレームの対向する2つの縦面に設けられた長手方
向に沿って凹凸を繰り返す波状部によって、フレームの
上下の曲げ剛性が向上する。このため、フレームに上下
方向に作用する力による断面崩れを防止することができ
る。なお、フレームの上下の曲げ剛性は、波状部の振幅
の波長に対する比が0.25付近で最大となり、波状部
の振幅の波長に対する比が0.25より大きくなると、
フレームの軸圧縮に対する剛性の低下が大きくなるた
め、波状部の振幅の波長に対する比は0.25以下にす
ることが好ましい。
In the reinforcing structure of the frame according to the first aspect of the present invention, the bending rigidity of the upper and lower portions of the frame is improved by the corrugated portion which is provided on the two opposing vertical surfaces of the frame and which has unevenness along the longitudinal direction. . Therefore, it is possible to prevent the collapse of the cross section due to the force acting on the frame in the vertical direction. The upper and lower flexural rigidity of the frame becomes maximum when the ratio of the amplitude of the wavy portion to the wavelength is around 0.25, and when the ratio of the amplitude of the wavy portion to the wavelength is greater than 0.25,
It is preferable that the ratio of the amplitude of the wavy portion to the wavelength is 0.25 or less, because the rigidity of the frame against axial compression decreases significantly.

【0010】本発明の請求項2記載のフレームの補強構
造では、フレームの4面全てに設けられた長手方向に沿
って凹凸を繰り返す波状部によって、フレームの上下左
右の曲げ剛性が向上する。このため、フレームに上下左
右方向に作用する力による断面崩れを防止することがで
きる。なお、フレームの上下左右の曲げ剛性は、波状部
の振幅の波長に対する比が0.01より大きく0.13
より小さい範囲付近で大きくなるが、実際に自動車車体
に使用する場合には、波状部の振幅の波長に対する比が
0.2以下であれば良い。
In the reinforcing structure for a frame according to the second aspect of the present invention, the bending rigidity of the upper, lower, left and right sides of the frame is improved by the corrugated portion which is provided on all four surfaces of the frame and which has unevenness along the longitudinal direction. Therefore, it is possible to prevent the collapse of the cross section due to the force acting on the frame in the vertical and horizontal directions. The bending rigidity of the upper, lower, left, and right of the frame is such that the ratio of the amplitude of the wavy portion to the wavelength is larger than 0.01 and 0.13
Although it increases in the vicinity of a smaller range, when actually used in an automobile body, the ratio of the amplitude of the wavy portion to the wavelength may be 0.2 or less.

【0011】[0011]

【実施例】本発明のフレームの補強構造の第1実施例を
図1〜図4に従って説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the frame reinforcing structure of the present invention will be described with reference to FIGS.

【0012】図1に示される如く、本実施例のフレーム
10は、断面が略矩形状とされた長尺状の閉断面構造と
されており、サイドメンバ、クロスメンバ等の車体骨格
部材に使用されている。
As shown in FIG. 1, the frame 10 of this embodiment has a long closed cross-section structure having a substantially rectangular cross section, and is used as a body member such as a side member or a cross member. Has been done.

【0013】このフレーム10の対向する2つの縦面1
0A、10Bには、それぞれフレーム10の長手方向に
沿って凹凸を繰り返す波状部12が設けられている。
Two opposing vertical surfaces 1 of this frame 10
0A and 10B are each provided with a wavy portion 12 that repeats unevenness along the longitudinal direction of the frame 10.

【0014】図2に示される如く、波状部12は、フレ
ーム10の縦面10A、10Bの幅方向(図2の上下方
向)端部に沿って残された縁部14の間に設けられてい
る。波状部12は、凸部の頂部12Aの幅Mが最も狭
く、フレーム10の縦面10A、10Bと同一位置とな
る凹部の底部12Bの幅Nが最も広くなっており、頂部
12Aと底部12Bとの間では、幅が除々に変化してい
る。
As shown in FIG. 2, the corrugated portion 12 is provided between the edge portions 14 left along the widthwise (vertical direction in FIG. 2) ends of the vertical surfaces 10A, 10B of the frame 10. There is. In the wavy portion 12, the width M of the top portion 12A of the convex portion is the smallest, and the width N of the bottom portion 12B of the concave portion that is at the same position as the vertical surfaces 10A and 10B of the frame 10 is the largest, and the top portion 12A and the bottom portion 12B are In between, the width gradually changes.

【0015】また、縁部14と波状部12の幅方向(図
2の上下方向)上端部12Cとは、上壁部16で連結さ
れており、縁部14と波状部12の幅方向(図2の上下
方向)下端部12Dとは、下壁部18で連結されてい
る。
The edge portion 14 and the upper end portion 12C in the width direction (vertical direction in FIG. 2) of the corrugated portion 12 are connected by the upper wall portion 16, and the edge portion 14 and the corrugated portion 12 in the width direction (see FIG. The lower wall portion 18 is connected to the lower end portion 12D (in the vertical direction of 2).

【0016】図3に示される如く、波状部12は、フレ
ーム10の長手方向に沿った断面形状が、振幅Hの波長
Lの三角波形状とされており、波状部12の振幅Hの波
長Lに対する比H/Lは0.25以下とされている。
As shown in FIG. 3, the wavy portion 12 has a cross-sectional shape along the longitudinal direction of the frame 10 that is a triangular wave having a wavelength L of an amplitude H, with respect to the wavelength L of the amplitude H of the wavy portion 12. The ratio H / L is 0.25 or less.

【0017】次に本実施例の作用を説明する。本実施例
のフレームの補強構造では、フレーム10の対向する2
つの縦面10A、10Bに設けられた、フレーム10の
長手方向に沿って凹凸を繰り返す波状部12によって、
上下方向(図1及び図2の矢印F2方向)の力によるフ
レーム10の上下の曲げ剛性が向上する。このため、フ
レーム10に上下方向に作用する力による断面崩れを防
止することができる。また、波状部12の振幅Hの波長
Lに対する比H/Lを変化させることで、フレーム10
の剛性を自由にコントロールできるため、振動モードの
コントロールが容易となり振動特性を向上できる。
Next, the operation of this embodiment will be described. In the frame reinforcing structure of this embodiment, the two opposing frames 10 are provided.
By the corrugated portion 12 provided on each of the vertical surfaces 10A and 10B and having the unevenness repeated along the longitudinal direction of the frame 10,
The up-down bending rigidity of the frame 10 due to the force in the up-down direction (direction of arrow F2 in FIGS. 1 and 2) is improved. Therefore, it is possible to prevent the collapse of the cross section due to the force acting on the frame 10 in the vertical direction. Further, by changing the ratio H / L of the amplitude H of the wavy portion 12 to the wavelength L, the frame 10
Since the rigidity of can be freely controlled, it is easy to control the vibration mode and the vibration characteristics can be improved.

【0018】なお、図4に示される如く、波状部12を
持たないフレームに対するフレーム10の剛性比は、波
状部12の振幅Hの波長Lに対する比H/Lが0.25
付近で最大となる。また、波状部12の振幅Hの波長L
に対する比H/Lが0.25より大きくなると、フレー
ム12の軸圧縮に対する剛性の低下が大きくなる。この
ため、波状部12の振幅Hの波長Lに対する比H/Lは
0.25以下にすることが好ましい。
As shown in FIG. 4, the rigidity ratio of the frame 10 to the frame having no wavy portion 12 is such that the ratio H / L of the amplitude H of the wavy portion 12 to the wavelength L is 0.25.
It becomes the maximum in the vicinity. Also, the wavelength L of the amplitude H of the wavy portion 12
When the ratio H / L is larger than 0.25, the rigidity of the frame 12 against axial compression is greatly reduced. Therefore, the ratio H / L of the amplitude H of the wavy portion 12 to the wavelength L is preferably 0.25 or less.

【0019】また、本実施例では、フレーム10の縦面
10A、10Bの幅方向(図2の上下方向)端部に沿っ
て縁部14を残したが、図5に示される如く、フレーム
10の縦面10A、10Bは縁部14を除いた構造とし
ても良い。
Further, in this embodiment, the edge portion 14 is left along the widthwise (vertical direction in FIG. 2) ends of the vertical surfaces 10A, 10B of the frame 10, but as shown in FIG. The vertical surfaces 10A and 10B may have a structure excluding the edge portion 14.

【0020】次に、本発明のフレームの補強構造の第2
実施例を図6〜図9に従って説明する。
Next, the second reinforcing structure of the frame of the present invention
An embodiment will be described with reference to FIGS.

【0021】図6に示される如く、このフレーム20の
対向する2つの縦面20A、20Bには、それぞれフレ
ーム20の長手方向に沿って凹凸を繰り返す波状部22
が設けられており、フレーム20の対向する2つの横面
20C、20Dには、それぞれフレーム10の長手方向
に沿って凹凸を繰り返す波状部22が設けられている。
As shown in FIG. 6, the two vertical surfaces 20A and 20B facing each other of the frame 20 have corrugated portions 22 each having an unevenness along the longitudinal direction of the frame 20.
The corrugated portion 22 that repeats unevenness along the longitudinal direction of the frame 10 is provided on each of the two opposing lateral surfaces 20C and 20D of the frame 20.

【0022】図7に示される如く、波状部22は、凸部
の頂部22Aの幅X1、Y1が最も広く、凹部の底部2
2Bの幅X2、Y2が最も狭くなっており、頂部22A
と底部22Bとの間では、幅が除々に変化している。ま
た、各波状部22の幅方向両端縁部22Cは互いに連結
されており、フレーム20は蛇腹状となっている。
As shown in FIG. 7, in the corrugated portion 22, the widths X1 and Y1 of the top portion 22A of the convex portion are widest, and the bottom portion 2 of the concave portion 2 is formed.
The widths X2 and Y2 of 2B are the narrowest, and the top 22A
The width gradually changes between the bottom and the bottom 22B. Further, both widthwise end edge portions 22C of the wavy portions 22 are connected to each other, and the frame 20 has a bellows shape.

【0023】図8に示される如く、波状部22は、フレ
ーム20の長手方向に沿った断面形状が、振幅Vの波長
Wの三角波形状とされており、波状部22の振幅Vの波
長Wに対する比V/Wは0.2以下とされている。
As shown in FIG. 8, the corrugated portion 22 has a cross-sectional shape along the longitudinal direction of the frame 20 which has a triangular wave shape with a wavelength W of the amplitude V, and the corrugated portion 22 with respect to the wavelength W of the amplitude V. The ratio V / W is set to 0.2 or less.

【0024】次に本実施例の作用を説明する。本実施例
のフレームの補強構造では、フレーム20の4面20
A、20B、20C、20Dの全てに設けられた長手方
向に沿って凹凸を繰り返す波状部22によって、上下左
右方向(図6及び図7の矢印F3方向)の力によるフレ
ーム20の上下左右の曲げ剛性が向上する。このため、
フレーム20に上下左右方向に作用する力による断面崩
れを防止することができる。
Next, the operation of this embodiment will be described. In the frame reinforcing structure of this embodiment, the four sides 20 of the frame 20 are
The wavy portion 22 provided on all of A, 20B, 20C, and 20D that repeats unevenness along the longitudinal direction bends the frame 20 up, down, left, and right by the force in the up, down, left, and right directions (direction of arrow F3 in FIGS. 6 and 7). The rigidity is improved. For this reason,
It is possible to prevent the collapse of the cross section due to the force acting on the frame 20 in the vertical and horizontal directions.

【0025】なお、図9に示される如く、フレーム20
の波状部22を持たないフレームに対する上下左右の曲
げ剛性比は、波状部22の振幅Vの波長Wに対する比V
/Wが0.01<V/W<0.13付近で大きくなる
が、実際に自動車車体に使用する場合には、波状部22
の振幅Vの波長Wに対する比V/Wが0.2以下であれ
ば良い。また、本実施例では、フレーム20の角部にも
波状部が形成されているが、これに代えて、図10に示
される如く、フレーム20の角部20E、20F、20
G、20Hに波状部が無い構成としても良い。
As shown in FIG. 9, the frame 20
The bending rigidity ratio of up, down, left and right with respect to the frame having no wavy portion 22 is the ratio V of the amplitude V of the wavy portion 22 to the wavelength W.
/ W increases in the vicinity of 0.01 <V / W <0.13. However, when actually used in an automobile body, the wavy portion 22
It suffices that the ratio V / W of the amplitude V to the wavelength W is 0.2 or less. Further, in this embodiment, the corrugated portion is also formed at the corner portion of the frame 20, but instead of this, as shown in FIG. 10, the corner portions 20E, 20F, 20 of the frame 20 are formed.
The G and 20H may have no wavy portion.

【0026】また、上記各実施例では、波状部12、2
2のフレーム10、20の長手方向に沿った断面形状を
三角波形状としたが、これに代えて、波状部12、22
のフレーム10、20の長手方向に沿った断面形状を正
弦波等の他の波形状としても良い。さらに、各波状部内
でその波長及び振幅を変化させても良く。各面に設けた
各波状部の波長及び振幅が異なっていても良く、位相が
ずれていても良い。
In each of the above embodiments, the corrugated portions 12, 2 are
The cross-sectional shape along the longitudinal direction of the second frames 10 and 20 is a triangular wave, but instead of this, the wavy portions 12 and 22 are used.
The cross-sectional shape of the frames 10 and 20 along the longitudinal direction may be another wave shape such as a sine wave. Furthermore, the wavelength and amplitude may be changed within each wavy portion. The wavelengths and amplitudes of the wavy portions provided on the respective surfaces may be different, or the phases may be shifted.

【0027】なお、上記各実施例のフレーム10、20
を製造する場合には、例えばフレームを左右2分割した
形状、即ち、断面コ字状の一対の部材をプレス加工等に
より製造し、その後、これらの部材を互いに、断面矩形
状となるように突き合わせて結合させる等の方法によっ
て製造する。
The frames 10 and 20 of each of the above embodiments are
In the case of manufacturing, for example, a frame is divided into left and right parts, that is, a pair of members having a U-shaped cross section is manufactured by press working, and then these members are butted against each other so as to have a rectangular cross section. It is manufactured by a method such as bonding.

【0028】[0028]

【発明の効果】本発明の請求項1記載のフレームの補強
構造は、矩形閉断面を構成する長尺状のフレームにおい
て、対向する2つの縦面に長手方向に沿って凹凸を繰り
返す波状部を設けるとともに、波状部の振幅の波長に対
する比を0.25以下にしたので、フレームの上下方向
の曲げ剛性が向上し、断面崩れを防止することができる
という優れた効果を有する。
According to the reinforcing structure for a frame according to claim 1 of the present invention, in a long frame having a rectangular closed cross section, corrugated portions that repeat unevenness along the longitudinal direction are formed on two opposing vertical surfaces. Since the ratio of the amplitude of the wavy portion to the wavelength is set to 0.25 or less, the bending rigidity of the frame in the vertical direction is improved, and the cross-section collapse can be prevented.

【0029】また、本発明の請求項2記載のフレームの
補強構造は、矩形閉断面を構成する長尺状のフレームに
おいて、4面全てに長手方向に沿って凹凸を繰り返す波
状部を設けるとともに、波状部の振幅の波長に対する比
を0.2以下にしたので、フレームの上下左右方向の曲
げ剛性が向上し、断面崩れを防止することができるとい
う優れた効果を有する。
According to a second aspect of the present invention, in a frame reinforcing structure, a long frame having a rectangular closed cross section is provided with wavy portions which repeat unevenness along the longitudinal direction on all four surfaces, Since the ratio of the amplitude of the wavy portion to the wavelength is 0.2 or less, the bending rigidity of the frame in the vertical and horizontal directions is improved, and it is possible to prevent the collapse of the cross section.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の第1実施例に係るフレームの補強構造
を示す斜視図である。
FIG. 1 is a perspective view showing a frame reinforcing structure according to a first embodiment of the present invention.

【図2】図1の2−2線断面図である。2 is a sectional view taken along line 2-2 of FIG.

【図3】図1の3−3線断面図である。3 is a sectional view taken along line 3-3 of FIG.

【図4】本発明の第1実施例に係るフレームの補強構造
の波状部の振幅の波長に対する比と上下の曲げ剛性比と
の関係を示すグラフである。
FIG. 4 is a graph showing the relationship between the ratio of the amplitude of the wavy portion to the wavelength of the reinforcing structure of the frame according to the first embodiment of the present invention and the upper and lower bending rigidity ratios.

【図5】本発明の第1実施例の変形例を示す斜視図であ
る。
FIG. 5 is a perspective view showing a modification of the first embodiment of the present invention.

【図6】本発明の第2実施例に係るフレームの補強構造
を示す斜視図である。
FIG. 6 is a perspective view showing a frame reinforcing structure according to a second embodiment of the present invention.

【図7】図6の7−7線断面図である。7 is a sectional view taken along line 7-7 of FIG.

【図8】図6の8−8線断面図である。8 is a sectional view taken along line 8-8 of FIG.

【図9】本発明の第2実施例に係るフレームの補強構造
の波状部の振幅の波長に対する比と上下左右の曲げ剛性
比との関係を示すグラフである。
FIG. 9 is a graph showing the relationship between the ratio of the amplitude of the wavy portion of the reinforcing structure of the frame to the wavelength and the bending rigidity ratio in the upper, lower, left and right directions according to the second embodiment of the present invention.

【図10】本発明の第2実施例の変形例を示す斜視図で
ある。
FIG. 10 is a perspective view showing a modification of the second embodiment of the present invention.

【図11】従来例に係るフレームの補強構造を示す斜視
図である。
FIG. 11 is a perspective view showing a frame reinforcing structure according to a conventional example.

【図12】図11の12−12線断面図である。12 is a sectional view taken along line 12-12 of FIG.

【符号の説明】[Explanation of symbols]

10 フレーム 10A 縦面 10B 縦面 12 波状部 20 フレーム 20A 縦面 20B 縦面 20C 横面 20D 横面 22 波状部 10 frame 10A vertical surface 10B vertical surface 12 wavy portion 20 frame 20A vertical surface 20B vertical surface 20C horizontal surface 20D horizontal surface 22 wavy portion

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 矩形閉断面を構成する長尺状のフレーム
において、対向する2つの縦面に長手方向に沿って凹凸
を繰り返す波状部を設けるとともに、前記波状部の振幅
の波長に対する比を0.25以下にしたことを特徴とす
るフレームの補強構造。
1. A long frame having a rectangular closed cross section is provided with corrugated portions that repeat unevenness along the longitudinal direction on two opposing vertical surfaces, and the ratio of the amplitude of the corrugated portion to the wavelength is 0. A reinforcing structure for the frame, which is characterized in that it is below 25.
【請求項2】 矩形閉断面を構成する長尺状のフレーム
において、4面全てに長手方向に沿って凹凸を繰り返す
波状部を設けるとともに、前記波状部の振幅の波長に対
する比を0.2以下にしたことを特徴とするフレームの
補強構造。
2. A long frame having a rectangular closed cross section is provided with wavy portions that repeat unevenness along the longitudinal direction on all four surfaces, and the ratio of the amplitude of the wavy portion to the wavelength is 0.2 or less. The frame reinforcement structure characterized by
JP11130992A 1992-04-30 1992-04-30 Reinforcing structure of frame Pending JPH05305877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11130992A JPH05305877A (en) 1992-04-30 1992-04-30 Reinforcing structure of frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11130992A JPH05305877A (en) 1992-04-30 1992-04-30 Reinforcing structure of frame

Publications (1)

Publication Number Publication Date
JPH05305877A true JPH05305877A (en) 1993-11-19

Family

ID=14557965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11130992A Pending JPH05305877A (en) 1992-04-30 1992-04-30 Reinforcing structure of frame

Country Status (1)

Country Link
JP (1) JPH05305877A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888953A2 (en) 1997-06-30 1999-01-07 Mazda Motor Corporation Front body structure for vehicle
JP2002284032A (en) * 2001-03-27 2002-10-03 Kawasaki Steel Corp Multiple face structural member for automobile
JP2008149906A (en) * 2006-12-18 2008-07-03 Press Kogyo Co Ltd Impact absorbing structure for vehicle frame
WO2008096672A1 (en) * 2007-02-05 2008-08-14 Kabushiki Kaisha Kobe Seiko Sho Structural member
JP2011016409A (en) * 2009-07-08 2011-01-27 Mazda Motor Corp Frame structure for vehicle
JP2014069637A (en) * 2012-09-28 2014-04-21 Daihatsu Motor Co Ltd Vehicle body frame structure of vehicle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888953A2 (en) 1997-06-30 1999-01-07 Mazda Motor Corporation Front body structure for vehicle
EP0888953A3 (en) * 1997-06-30 1999-03-03 Mazda Motor Corporation Front body structure for vehicle
US6152521A (en) * 1997-06-30 2000-11-28 Mazda Motor Corporation Front body structure for vehicle
JP2002284032A (en) * 2001-03-27 2002-10-03 Kawasaki Steel Corp Multiple face structural member for automobile
JP2008149906A (en) * 2006-12-18 2008-07-03 Press Kogyo Co Ltd Impact absorbing structure for vehicle frame
WO2008096672A1 (en) * 2007-02-05 2008-08-14 Kabushiki Kaisha Kobe Seiko Sho Structural member
JP2011016409A (en) * 2009-07-08 2011-01-27 Mazda Motor Corp Frame structure for vehicle
JP2014069637A (en) * 2012-09-28 2014-04-21 Daihatsu Motor Co Ltd Vehicle body frame structure of vehicle

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