JPH04232183A - Suspension cross-member of vehicle - Google Patents

Suspension cross-member of vehicle

Info

Publication number
JPH04232183A
JPH04232183A JP41563790A JP41563790A JPH04232183A JP H04232183 A JPH04232183 A JP H04232183A JP 41563790 A JP41563790 A JP 41563790A JP 41563790 A JP41563790 A JP 41563790A JP H04232183 A JPH04232183 A JP H04232183A
Authority
JP
Japan
Prior art keywords
suspension
cross member
arm
suspension cross
vehicle body
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
Application number
JP41563790A
Other languages
Japanese (ja)
Other versions
JP2876429B2 (en
Inventor
Yoshikazu Ide
芳和 井出
Tsutomu Sugawara
勉 菅原
Tadanobu Yamamoto
山本 忠信
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.)
Mazda Motor Corp
Original Assignee
Mazda 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 Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP41563790A priority Critical patent/JP2876429B2/en
Publication of JPH04232183A publication Critical patent/JPH04232183A/en
Application granted granted Critical
Publication of JP2876429B2 publication Critical patent/JP2876429B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To secure strength of a front suspension sufficiently and reduce weight of a vehicle by fixing an A type suspension arm to a vehicle side using a reinforcement member to reduce strength to be burdened on a suspension cross- member formed of a light alloy. CONSTITUTION:A suspension cross-member 1 is made of a light alloy such as aluminum. A mount on the vehicle side 130 is provided at the top end of a wheel side mounting arm 13 formed in a thick plate main body 11, and an arm support 14 of the A type suspension arm 2 is provided at its lower end. Also an arm fixing part 12 for binding the A type suspension arm 2 and connecting it to the vehicle body is provided at both rear ends of the thick plate main body 11. In addition, an reinforcement member 4 formed of steel and the like other than the suspension cross-member 1 is provided on a fixed seat surface 120 at the top end of the arm fixing part 12. Thus the A type suspension arm 2 can be fixed to the vehicle side using the reinforcement member 4 to reduce the load to be applied to the suspension cross-member 1.

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、車体前部に配設される
車両のサスペンションクロスメンバーに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension cross member for a vehicle disposed at the front of a vehicle body.

【0002】0002

【従来の技術】従来、前輪を支持する略A型のサスペン
ションアームと、サスペンションアームが搖動可能に取
り付けられ、車体幅方向に延設されたサスペンションク
ロスメンバーとから成り、車体前部に配置されたフロン
トサスペンションの構造としては、例えばサスペンショ
ンクロスメンバーの車体前方側の両端は、エンジンルー
ム内に車体前後方向に延設された一対のフロントサイド
メンバーに取り付けられ、サスペンションクロスメンバ
ーの車体後方側の両端は、フロントサイドメンバーとサ
イドシルとの間のダッシュロアパネルに取り付けられる
とともに、2個のA型サスペンションアーム車体側取付
端が車体前後方向に離れた2点でサスペンションクロス
メンバーに取り付けられている(実開昭58−1079
65公報参照)。
[Prior Art] Conventionally, a suspension arm that supports a front wheel and a suspension cross member that is attached to the suspension arm in a swingable manner and extends in the width direction of the vehicle body are disposed at the front of the vehicle body. As for the structure of a front suspension, for example, both ends of the suspension cross member on the front side of the vehicle body are attached to a pair of front side members extending in the longitudinal direction of the vehicle body in the engine room, and both ends of the suspension cross member on the rear side of the vehicle body are attached to a pair of front side members that extend in the longitudinal direction of the vehicle body in the engine room. , is attached to the dash lower panel between the front side member and the side sill, and the two A-type suspension arms are attached to the suspension cross member at two points apart in the longitudinal direction of the vehicle. 58-1079
(See Publication No. 65).

【0003】0003

【発明が解決しようとする課題】しかしながら、上記従
来のフロントサスペンションの構造においては、サスペ
ンションクロスメンバーのサスペンションアーム取付位
置と車体への取付位置とが異なっているために、サスペ
ンションクロスメンバーの車体取付部に大荷重がかかっ
た時(正突時等)にサスペンションクロスメンバーが破
損し、サスペンションアームが脱落する恐れがあるから
、サスペンションクロスメンバーが車体前後方向並びに
幅方向の強度を確保することになり、サスペンションク
ロスメンバーの素材自体の強度が大きくなければならず
、強度を確保するために素材が限定され、サスペンショ
ンクロスメンバーひいては車体の軽量化を図ることが困
難であるという問題があった。
[Problems to be Solved by the Invention] However, in the above-mentioned conventional front suspension structure, since the suspension arm attachment position of the suspension cross member and the attachment position to the vehicle body are different, the suspension arm attachment portion of the suspension cross member to the vehicle body is different. When a large load is applied to the vehicle (such as in a head-on collision), the suspension cross member may be damaged and the suspension arm may fall off, so the suspension cross member ensures strength in the longitudinal and width directions of the vehicle. The material of the suspension cross member itself must have high strength, and the materials used are limited in order to ensure the strength, making it difficult to reduce the weight of the suspension cross member and, by extension, the vehicle body.

【0004】本発明の目的は、サスペンションクロスメ
ンバーが負担すべき強度を軽減することにより、サスペ
ンションクロスメンバーを軽量の材料で形成して車体の
軽量化を図ることを可能にするとともに、フロントサス
ペンションの強度を確保することのできる車両のサスペ
ンションクロスメンバーを提供することである。
[0004] An object of the present invention is to reduce the strength that the suspension cross member should bear, thereby making it possible to make the suspension cross member made of a lightweight material to reduce the weight of the vehicle body, and to reduce the weight of the front suspension. To provide a suspension cross member for a vehicle that can ensure strength.

【0005】[0005]

【課題を解決するための手段】本発明の車両のサスペン
ションクロスメンバーは、車体幅方向に延設されたサス
ペンションクロスメンバーの車体幅方向両端において少
なくとも車体前後方向に離れた2点の支持部で略A型の
サスペンションアーム(以下A型サスペンションアーム
という)が固定されるものであって、その支持部の少な
くとも1ヵ所は車体とサスペンションクロスメンバーと
の間にサスペンションアームを挟んで固定する固定部と
するとともに、このサスペンションクロスメンバーの固
定部にサスペンションクロスメンバーとは別体の補強部
材を設けて固定しているから、正突時にサスペンション
クロスメンバーの車体取付部が破壊された時にもA型サ
スペンションアームが補強部材で車体に固定されており
、強度の高いA型サスペンションアームが強度を負担す
ることになり、サスペンションクロスメンバーが負担す
べき強度が軽減され、フロントサスペンションの強度を
十分に確保することができる。また、サスペンションク
ロスメンバーをアルミニューム等の軽合金で形成するこ
とにより、サスペンションクロスメンバーを軽量化する
ことができるから、車体の軽量化を図ることができる。
[Means for Solving the Problems] A suspension cross member for a vehicle according to the present invention has at least two support portions separated in the longitudinal direction of the vehicle body at both ends of the suspension cross member extending in the width direction of the vehicle body. An A-type suspension arm (hereinafter referred to as A-type suspension arm) is fixed, and at least one of its supporting parts is a fixed part that sandwiches and fixes the suspension arm between the vehicle body and the suspension cross member. At the same time, since the fixed part of the suspension cross member is fixed with a reinforcing member separate from the suspension cross member, even if the suspension cross member's attachment part to the vehicle body is destroyed in a head-on collision, the A-type suspension arm will remain intact. It is fixed to the vehicle body with reinforcing members, and the strength is borne by the high-strength A-type suspension arm, which reduces the strength that must be borne by the suspension cross member, ensuring sufficient strength for the front suspension. . Further, by forming the suspension cross member from a light alloy such as aluminum, the weight of the suspension cross member can be reduced, so that the weight of the vehicle body can be reduced.

【0006】[0006]

【実施例】図1は本発明の1実施例であるサスペンショ
ンクロスメンバーの斜視図、図2は同じく平面図、図3
は要部拡大斜視図、図4はA型サスペンションアームの
固定状態を示す断面図である。
[Embodiment] Fig. 1 is a perspective view of a suspension cross member which is an embodiment of the present invention, Fig. 2 is a plan view thereof, and Fig. 3
4 is an enlarged perspective view of a main part, and FIG. 4 is a sectional view showing a fixed state of the A-type suspension arm.

【0007】車体前部において車体幅方向に延設される
サスペンションクロスメンバー1はアルミニューム等の
軽合金で形成されており、サスペンションクロスメンバ
ー1は矩形の厚板状本体11を有し、本体11の車体前
方(矢印F方向)の両側端を斜め上方に延長して車体側
取付アーム13,13を形成し、車体側取付アーム13
,13の上端には車体即ちフロントフレーム3に取り付
ける平面状の車体側取付部130, 130が形成され
、車体側取付アーム13,13の下端にはフロントサス
ペンションのロアアームであるA型サスペンションアー
ム2の車体前方側アームの内端を取り付けるアーム支持
部14,14がそれぞれ設けられている。
A suspension cross member 1 extending in the vehicle width direction at the front of the vehicle body is made of a light alloy such as aluminum, and the suspension cross member 1 has a rectangular thick plate-like body 11. The vehicle body side mounting arms 13, 13 are formed by extending both ends of the front side of the vehicle body (in the direction of arrow F) diagonally upward.
, 13 are formed with planar body-side mounting parts 130, 130 that are attached to the vehicle body, that is, the front frame 3, and the lower ends of the vehicle body-side mounting arms 13, 13 are formed with the A-type suspension arm 2, which is the lower arm of the front suspension. Arm support parts 14, 14 are provided, respectively, to which the inner ends of the front arms of the vehicle body are attached.

【0008】また、本体11の車体後方の両側端にA型
サスペンションアーム2の車体後方側アームを挟み、車
体に固定するアーム固定部12, 12が突設して形成
され、アーム固定部12, 12の上端に固定座面12
0, 120がそれぞれ形成されて固定座面120, 
120の略中央に略車体前後方向の溝121, 121
が形成されており、アーム固定部12, 12と車体側
取付アーム13,13との車体前後方向中間位置にステ
アリングロッドを配置する車体幅方向の溝15が形成さ
れている。
Furthermore, arm fixing parts 12, 12 are formed protruding from both ends of the main body 11 at the rear of the vehicle body, sandwiching the vehicle rear side arm of the A-type suspension arm 2 and fixing it to the vehicle body. Seat surface 12 fixed to the upper end of 12
0 and 120 are respectively formed to form fixed seat surfaces 120 and 120, respectively.
120, grooves 121, 121 extending approximately in the longitudinal direction of the vehicle body.
A groove 15 in the width direction of the vehicle body is formed at an intermediate position in the longitudinal direction of the vehicle body between the arm fixing portions 12, 12 and the vehicle body side mounting arms 13, 13, in which the steering rod is disposed.

【0009】アーム固定部12の上端の固定座面120
 には、サスペンションクロスメンバー1と別体の鋼鉄
等で形成された補強部材4が配設されており、補強部材
4は固定座面120 に密着する形状で、略中央に固定
座面120 の溝121 に嵌合する半円形の受け溝4
1が形成され、両端に固定用ボルト孔5が設けられてい
る。
Fixed seat surface 120 at the upper end of the arm fixing part 12
A reinforcing member 4 made of steel or the like, which is separate from the suspension cross member 1, is disposed on the suspension cross member 1. The reinforcing member 4 has a shape that closely contacts the fixed seat surface 120, and has a groove in the fixed seat surface 120 approximately in the center. 121 Semicircular receiving groove 4 that fits into
1 is formed, and fixing bolt holes 5 are provided at both ends.

【0010】アーム固定部12の固定構造は、フロアパ
ネル61の下面に設けられたフロントフレームキックア
ップ部6にA型サスペンションアーム2の車体後方側ア
ームを挟んで固定座面120 の溝121 に合致する
溝60が形成されており、フロントフレームキックアッ
プ部6の溝60と、補強部材4の受け溝41が嵌合され
た固定座面120 の溝121 とがA型サスペンショ
ンアーム2の車体後方側アームを挟んで合致され、固定
ボルト7で固定されている。
The fixing structure of the arm fixing part 12 is such that the rear arm of the A-type suspension arm 2 is sandwiched between the front frame kick-up part 6 provided on the lower surface of the floor panel 61 and matches the groove 121 of the fixed seat surface 120. The groove 60 of the front frame kick-up part 6 and the groove 121 of the fixed seat surface 120 into which the receiving groove 41 of the reinforcing member 4 is fitted are formed on the rear side of the vehicle body of the A-type suspension arm 2. They are matched with the arms in between and fixed with fixing bolts 7.

【0011】この構成によると、正突時にサスペンショ
ンクロスメンバー1の車体取付部が大荷重を受けて破壊
された時にもA型サスペンションアームが補強部材で車
体に固定されており、強度の高いA型サスペンションア
ームが強度を負担することになり、サスペンションクロ
スメンバーが負担すべき強度が軽減され、フロントサス
ペンションの強度を十分に確保することができる。
According to this configuration, even if the vehicle body mounting portion of the suspension cross member 1 is damaged due to a large load in a head-on collision, the A-type suspension arm is fixed to the vehicle body with the reinforcing member, and the A-type suspension arm with high strength is maintained. Since the suspension arm bears the strength, the strength that the suspension cross member should bear is reduced, and sufficient strength of the front suspension can be ensured.

【0012】また、サスペンションクロスメンバー1を
アルミニューム等の軽合金で形成することにより、サス
ペンションクロスメンバー1を軽量化することができ、
車体の軽量化を図ることができる。
Furthermore, by forming the suspension cross member 1 from a light alloy such as aluminum, the weight of the suspension cross member 1 can be reduced.
It is possible to reduce the weight of the vehicle body.

【0013】[0013]

【発明の効果】正突時にサスペンションクロスメンバー
の車体取付部が大荷重を受けて破壊された時にもA型サ
スペンションアームが補強部材で車体に固定されており
、強度の高いA型サスペンションアームが強度を負担す
ることになり、サスペンションクロスメンバーが負担す
べき強度が軽減され、フロントサスペンションの強度を
十分に確保することができる。また、サスペンションク
ロスメンバーをアルミニューム等の軽合金で形成するこ
とにより、サスペンションクロスメンバーを軽量化する
ことができ、車体の軽量化を図ることができる。
[Effects of the Invention] Even if the suspension cross member's attachment to the vehicle body is damaged due to heavy loads during a head-on collision, the A-type suspension arm is fixed to the vehicle body with a reinforcing member, and the strong A-type suspension arm has high strength. This reduces the strength that the suspension cross member has to bear, making it possible to ensure sufficient strength for the front suspension. Further, by forming the suspension cross member from a light alloy such as aluminum, the weight of the suspension cross member can be reduced, and the weight of the vehicle body can be reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

【図1】本発明の1実施例であるサスペンションクロス
メンバーの斜視図である。
FIG. 1 is a perspective view of a suspension cross member that is one embodiment of the present invention.

【図2】サスペンションクロスメンバーの平面図である
FIG. 2 is a plan view of the suspension cross member.

【図3】サスペンションクロスメンバーの要部拡大斜視
図である。
FIG. 3 is an enlarged perspective view of essential parts of the suspension cross member.

【図4】A型サスペンションアームの固定状態を示す断
面図である。
FIG. 4 is a sectional view showing a fixed state of the A-type suspension arm.

【符号の説明】[Explanation of symbols]

1  サスペンションクロスメンバー 2  A型サスペンションアーム(ロアアーム)3  
フロントフレーム 4  補強部材
1 Suspension cross member 2 A type suspension arm (lower arm) 3
Front frame 4 reinforcement member

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】  サスペンションクロスメンバーの車体
幅方向両端において少なくとも車体前後方向に離れた2
点の支持部で略A型のサスペンションアームが固定され
るものであって、その支持部の少なくとも1ヵ所は車体
とサスペンションクロスメンバーとの間にサスペンショ
ンアームを挟んで固定する固定部とするとともに、この
サスペンションクロスメンバーの固定部にサスペンショ
ンクロスメンバーとは別体の補強部材を設けて固定した
ことを特徴とする車両のサスペンションクロスメンバー
[Claim 1] Two parts separated at least in the longitudinal direction of the vehicle body at both ends of the suspension cross member in the vehicle body width direction.
A substantially A-shaped suspension arm is fixed at the point support portion, and at least one of the support portions is a fixed portion that sandwiches and fixes the suspension arm between the vehicle body and the suspension cross member; A suspension cross member for a vehicle, characterized in that a reinforcing member separate from the suspension cross member is provided at a fixed portion of the suspension cross member to secure the suspension cross member.
【請求項2】  サスペンションクロスメンバーをアル
ミニューム等の軽合金で形成したことを特徴とする請求
項1記載の車両のサスペンションクロスメンバー。
2. The suspension cross member for a vehicle according to claim 1, wherein the suspension cross member is made of a light alloy such as aluminum.
JP41563790A 1990-12-28 1990-12-28 Vehicle suspension cross member Expired - Fee Related JP2876429B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP41563790A JP2876429B2 (en) 1990-12-28 1990-12-28 Vehicle suspension cross member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP41563790A JP2876429B2 (en) 1990-12-28 1990-12-28 Vehicle suspension cross member

Publications (2)

Publication Number Publication Date
JPH04232183A true JPH04232183A (en) 1992-08-20
JP2876429B2 JP2876429B2 (en) 1999-03-31

Family

ID=18523974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP41563790A Expired - Fee Related JP2876429B2 (en) 1990-12-28 1990-12-28 Vehicle suspension cross member

Country Status (1)

Country Link
JP (1) JP2876429B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6979023B2 (en) 2000-11-01 2005-12-27 Honda Giken Kogyo Kabushiki Kaisha Die cast sub-frame
CN110203284A (en) * 2019-06-04 2019-09-06 中国第一汽车股份有限公司 A kind of subframe of hollow cast aluminium and aluminum profile welding

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6979023B2 (en) 2000-11-01 2005-12-27 Honda Giken Kogyo Kabushiki Kaisha Die cast sub-frame
DE10153272B4 (en) * 2000-11-01 2009-04-16 Honda Giken Kogyo K.K. Die-cast subframe
CN110203284A (en) * 2019-06-04 2019-09-06 中国第一汽车股份有限公司 A kind of subframe of hollow cast aluminium and aluminum profile welding
CN110203284B (en) * 2019-06-04 2021-07-09 中国第一汽车股份有限公司 Hollow cast aluminum and aluminum section bar welded auxiliary frame

Also Published As

Publication number Publication date
JP2876429B2 (en) 1999-03-31

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