JPS6189104A - Axle beam structure - Google Patents

Axle beam structure

Info

Publication number
JPS6189104A
JPS6189104A JP21099384A JP21099384A JPS6189104A JP S6189104 A JPS6189104 A JP S6189104A JP 21099384 A JP21099384 A JP 21099384A JP 21099384 A JP21099384 A JP 21099384A JP S6189104 A JPS6189104 A JP S6189104A
Authority
JP
Japan
Prior art keywords
axle beam
beam body
side wall
front side
axle
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
JP21099384A
Other languages
Japanese (ja)
Inventor
Hiroaki Tanaka
宏明 田中
Yutaka Inuzuka
犬塚　豊
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 JP21099384A priority Critical patent/JPS6189104A/en
Priority to DE19853535783 priority patent/DE3535783A1/en
Publication of JPS6189104A publication Critical patent/JPS6189104A/en
Priority to US07/129,900 priority patent/US4813507A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/02—Dead axles, i.e. not transmitting torque
    • B60B35/06—Dead axles, i.e. not transmitting torque cranked
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/051—Trailing arm twist beam axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/04—Buffer means for limiting movement of arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/30—Manufacturing methods joining
    • B60B2310/305—Manufacturing methods joining by screwing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2360/00—Materials; Physical forms thereof
    • B60B2360/14—Physical forms of metallic parts
    • B60B2360/145—Profiles, i.e. being solid and having irregular cross-section
    • B60B2360/1458—U or V-Profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/20—Avoidance of
    • B60B2900/212—Damage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/13—Torsion spring
    • B60G2202/136—Twist-beam type arrangement
    • B60G2202/1362—Twist-beam type arrangement including a second torsional element, e.g. second beam, stabiliser bar or tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/43—Fittings, brackets or knuckles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/014—Constructional features of suspension elements, e.g. arms, dampers, springs with reinforcing nerves or branches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/016—Constructional features of suspension elements, e.g. arms, dampers, springs allowing controlled deformation during collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/20—Constructional features of semi-rigid axles, e.g. twist beam type axles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

PURPOSE:To make it possible to reduce impact force upon collision of an axle beam against obstruction, by attaching a protector member having an inclined surface extending downward of the front side wall of an axle beam body, onto the front side wall. CONSTITUTION:An axle beam 21 is composed of a beam body 22 and a protector member 24 attached to the front side of the beam body 22, The protector member 24 is in a V-like cross-sectioned shape and is fixed to the side wall 22c of the beam body 24 by means of bolts 26A and nuts 26B. Further, the protector member 24 is formed in its front side perpheral wall 24A with an inclined surface extenting downward of the side wall 22C. Since any obstruction may slide on the outer surface of the inclined surface when it makes in contact with the protector member 24, thereby it is possible to prevent the axle beam from being deformed by impact force.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は主としてＦ、Ｆ、車の後輪懸架装置のアクスル
ビーム構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention mainly relates to an axle beam structure of a rear wheel suspension system for an F, F, or vehicle.

〔従来技術〕[Prior art]

従来のＦ、Ｆ、車における後輪懸架装置は、第１０図に
示されるように、左右のブレーキドラム４．４間にあっ
て車両幅方向に延設されているアクスルビーム２と、こ
のアクスルビーム２と車体（図示せず）間にそれぞれ取
付けられているトレーリングアーム６、コイルスプリン
グ付ショックアブソーバ８とから構成されている。As shown in FIG. 10, the rear wheel suspension system for conventional F, F, cars includes an axle beam 2 extending in the vehicle width direction between the left and right brake drums 4.4, and this axle beam 2. It is comprised of a trailing arm 6 and a shock absorber 8 with a coil spring, which are respectively attached between a vehicle body (not shown) and a vehicle body (not shown).

アクスルビーム２は、第１１図に示されるように、捩り
剛性を適正値に保つため横断面がＵ字形状に形成されて
おり、水や塵などがアクスルビーム内に堆積しないよう
に開口部２人が下向きとなるように配設されている。な
お、符号９は車体のロールを少なくし走行安定性を向上
させるだめのスタビライザで、アクスルビーム２内に延
設され、その両端部はアクスルビーム２に組付けられた
エントリアクスル（図示せず）に固定されている。As shown in FIG. 11, the axle beam 2 has a U-shaped cross section in order to maintain appropriate torsional rigidity, and the opening 2 is formed to prevent water, dust, etc. from accumulating inside the axle beam. It is arranged so that people are facing downward. Reference numeral 9 designates a stabilizer that reduces vehicle body roll and improves running stability, and extends into the axle beam 2, with both ends attached to the entry axle (not shown) assembled to the axle beam 2. Fixed.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来のアクスルビーム２は、第１１図に示されるように
、開口部２Ａｔ−下向きにして配設されているため、ア
クスルビーム側壁２Ｂ、２Ｃは車輛走行方向に対し垂直
状態となっている。そのため車輛走行中（矢印Ａは車輛
走行方向を示す）に、アクスルビーム２が路上の背の高
い石などの大きな障害物１１と接触した場合には、障害
物１１との水平方向衝突力Ｐがまともにアクスルビーム
２に作用し、アクスルビームの側壁２Ｃを押し曲げてア
クスルビーム−を変形させ、時にはスタビライザ９をも
変形させることもあった。As shown in FIG. 11, the conventional axle beam 2 is disposed with the opening 2At facing downward, so that the axle beam side walls 2B and 2C are perpendicular to the vehicle running direction. Therefore, when the axle beam 2 comes into contact with a large obstacle 11 such as a tall stone on the road while the vehicle is running (arrow A indicates the direction of vehicle travel), the horizontal collision force P with the obstacle 11 will be It directly acted on the axle beam 2, pushing and bending the side wall 2C of the axle beam, deforming the axle beam, and sometimes even deforming the stabilizer 9.

本発明は前記従来技術の問題点に鑑みなされたもので、
その目的は、アクスルビーム本体にアクスルビーム本体
保護部材を取付けることによシ、車輛走行中にアクスル
ビームが障害物と接触したとしても、アクスルビームが
変形しにくいアクスルビーム構造を提供することにある
。The present invention has been made in view of the problems of the prior art,
The purpose is to provide an axle beam structure that prevents deformation of the axle beam even if the axle beam comes into contact with an obstacle while the vehicle is running, by attaching an axle beam body protection member to the axle beam body. .

〔問題点を解決するための手段〕[Means for solving problems]

本発明に係るアクスルビーム構造は、車幅幅方向に延在
するアクスルビーム本体のフロント側側壁に、このフロ
ント側側壁の下方に向かう傾斜外周面を有し車輛幅方向
に延びるアクスルビーム本体保護部材を取付けてなるこ
とを特徴とするもので、この構成によって前記目的を達
成せんとするものである。The axle beam structure according to the present invention has an axle beam body protection member that has a downwardly inclined outer peripheral surface on the front side wall of the axle beam body that extends in the vehicle width direction, and that extends in the vehicle width direction. This structure is characterized by the fact that the above-mentioned object is achieved.

〔作用〕[Effect]

次に、本発明の詳細な説明する。 Next, the present invention will be explained in detail.

車輛走行中にアクスルビームが路上の障害物と接触する
場合には、まずアクスルビーム本体（以下、単にビーム
本体という）のフロント側側壁に取付けられているアク
スルビーム本体保護部材（以下、単に保護部材という）
外周面が障害物に接触する。しかし、保護部材外周面は
、フロント側側壁の下方に向って傾斜しているので、保
護部材はソリの働きをし、ビーム本体と保護部材とは一
体となって障害物上を滑動して障害物上を乗り越えるこ
とができる。そのため、障害物との接触による水平方向
衝突力は緩和されてビーム本体め変形が防止される。When the axle beam comes into contact with an obstacle on the road while the vehicle is running, first remove the axle beam body protection member (hereinafter simply referred to as the protection member) attached to the front side wall of the axle beam body (hereinafter simply referred to as the beam body). )
The outer circumferential surface comes into contact with an obstacle. However, since the outer circumferential surface of the protective member is sloped downward from the front side wall, the protective member acts as a warp, and the beam body and the protective member slide over the obstacle as one, causing an obstacle. You can overcome things. Therefore, the horizontal collision force caused by contact with an obstacle is alleviated, and deformation of the beam body is prevented.

〔実施例〕〔Example〕

次に、本発明の実施例を図面に基づいて説明する。 Next, embodiments of the present invention will be described based on the drawings.

第１図及び第２図は本発明の第１の実施例を示すもので
あり、第１図は本発明に係るアクスルビーム構造を適用
したＦ、Ｆ、車の後輪懸架装置の斜視図を示しており、
第２図はそのアクスルビームの横断面図を示している。1 and 2 show a first embodiment of the present invention, and FIG. 1 is a perspective view of a rear wheel suspension system of an F, F, car to which the axle beam structure according to the present invention is applied. It shows
FIG. 2 shows a cross-sectional view of the axle beam.

後輪懸架装置は、第１図に示されるように、両端部にブ
レーキドラム４．４が取付けられ、車輛幅方向に延設さ
れてなるアクスルビーム２１と、一端部がこのビーム２
１に取付けられ、他端部がフロント側に延びて車体（図
示せず）に取付けられた一対のトレーリングアーム６．
６と、一端部かこのビーム２１に取付けられ、他端部が
車体に取付けられた一対のコイルスプリング付ショツク
アプンーバ８．８とから構成されている。As shown in FIG. 1, the rear wheel suspension system includes an axle beam 21 which has brake drums 4.4 attached to both ends and extends in the vehicle width direction, and one end of which is attached to the axle beam 21.
a pair of trailing arms 6. attached to the vehicle body (not shown) with the other end extending toward the front side;
6, and a pair of shock amplifiers 8.8 with coil springs, one end of which is attached to the beam 21 and the other end of which is attached to the vehicle body.

アクスルビーム２１は、第２図に示されているように、
ビーム本体２２と、このビーム本体２２のフロント側に
取付けられている保護部材２４とから構成されている。The axle beam 21, as shown in FIG.
It is composed of a beam body 22 and a protection member 24 attached to the front side of the beam body 22.

ビーム本体２２は、横断面Ｕ字形状に形成され、内部に
水や塵などが堆積しないように開口部２２Ａを下向きに
して配設されており、ビーム本体のフロント側側壁２２
ＣＫ横断面略Ｖ字形状の保護部材２４が長手方向両端部
　　゛をボルト・ナラ）２６Ａ、２６Ｂで締結されて車
輛幅方向に取付けられ、保護部材２４のフロント側外周
面２４Ａは傾斜して側壁２２Ｃの下方に向かっている。The beam body 22 has a U-shaped cross section, and is disposed with the opening 22A facing downward to prevent water and dust from accumulating inside.
CK A protection member 24 having a substantially V-shaped cross section is attached to the vehicle in the width direction by fastening its longitudinal ends with bolts 26A and 26B, and the front outer circumferential surface 24A of the protection member 24 is inclined to form a side wall. It is heading below 22C.

なお符号９はスタビライザ、符号Ｂは車幅の走行方向を
示している。Note that the reference numeral 9 indicates a stabilizer, and the reference numeral B indicates the running direction of the vehicle width.

次に、本実施例に係るアクスルビーム構造の作用を第３
図（ａ）〜（Ｃ）に基づいて説明する。Next, the effect of the axle beam structure according to this example will be explained in the third section.
This will be explained based on FIGS. (a) to (C).

第３図（ａ）に示されるように、路上高く突出する障害
物１１にアクスルビーム２１が接触する場合には、まず
保護部材２４の外園・面２４Ａが障害物１１に接触する
。するとアクスルビーム２１は保護部材２４の外周面２
４Ａを滑動面として障害物外表面上をソリのように滑動
し、第３図（ｂ）　、　（Ｃ）に示されるように、障害
物１１上を飛び越えることができる。このようにアクス
ルビーム２１が障害物と接触する際、障害物上を滑動し
て障害物との対向状態の衝突を回避することができるの
で、ビーム本体側壁２２Ｂ、２２Ｃには、第１１図符号
Ｐで示すような水平方向の大きな衝突力は作用せず、ア
クスルビーム２１の変形が防止される。また、水平方向
の大きな衝突力Ｐがアクスルビーム２１に作用しないの
で、塔乗者に大きな衝撃を与えることもない。As shown in FIG. 3(a), when the axle beam 21 comes into contact with an obstacle 11 that protrudes high on the road, the outer surface 24A of the protection member 24 comes into contact with the obstacle 11 first. Then, the axle beam 21 touches the outer peripheral surface 2 of the protection member 24.
It slides like a sled on the outer surface of the obstacle using 4A as a sliding surface, and can jump over the obstacle 11 as shown in FIGS. 3(b) and (C). In this way, when the axle beam 21 comes into contact with an obstacle, it can slide on the obstacle and avoid a collision with the obstacle. A large horizontal collision force as indicated by P does not act, and deformation of the axle beam 21 is prevented. Further, since a large horizontal collision force P does not act on the axle beam 21, no large impact is given to the tower occupants.

なお、アクスルビーム２１が障害物と接触しながら障害
物１１上を通過する際にアクスルビーム２１は障害物１
１によって上方に押し上げられることとなるが、このア
クスルビーム押上量ｈ（第３図（ｂ）参照）が小さい場
合には、アクスルビーム２１の両端部に設けられている
コイルスプリング付ショックアブソーバ８．８によって
その押上量りは吸収され、アクスルビーム２１が障害物
１１に接触することによる上下方向の衝撃力は車体まで
伝わらない。また押上量りが大きい場合には、コイルス
プリング付ショックアブソーバ８．８では押上量りを吸
収しきれないので車体も上方に押し上げられることにな
る、しかし、コイルスプリング付ショックアブソーバ８
．８の働きにより、アクスルビーム２１が障害物１１と
接触することによる上下方向の衝撃力は緩和されて車体
に伝達されるので、塔乗者にとって大きな衝撃とはなら
ない。Note that when the axle beam 21 passes over the obstacle 11 while contacting the obstacle, the axle beam 21
However, if this axle beam push-up amount h (see FIG. 3(b)) is small, the shock absorbers 8. 8 absorbs the upward force, and the impact force in the vertical direction due to the axle beam 21 contacting the obstacle 11 is not transmitted to the vehicle body. Also, if the amount of push-up is large, the shock absorber with coil spring 8.8 will not be able to absorb the amount of push-up, and the vehicle body will also be pushed upward.However, the shock absorber with coil spring 8.
．． 8, the impact force in the vertical direction caused by the axle beam 21 coming into contact with the obstacle 11 is relaxed and transmitted to the vehicle body, so that it does not cause a large impact to the occupants.

第４図は本発明の第２の実施例を示すものである。FIG. 4 shows a second embodiment of the invention.

ビーム本体２２のフロント側側壁２２Ｃに、突出部が横
断面くの字形状に折曲され、傾斜外周面２８Ａの形成さ
れた保護部材２８が溶接によって固定されて車輛幅方向
に取付けられている。保護部材２８の下方側縁部２９は
折曲してフロント側側壁２２Ｃの下方まで回シ込んでい
る。A protection member 28, which has a protrusion bent into a dogleg shape in cross section and has an inclined outer peripheral surface 28A, is fixed to the front side wall 22C of the beam body 22 in the vehicle width direction by welding. The lower side edge 29 of the protection member 28 is bent and recessed to the bottom of the front side wall 22C.

このように本実施例では、ソリとして機能する保護部材
２８がビーム本体のフロント側側壁２２Ｃ下方まで延び
ているのでアクスルビームが確実に障害物上を滑動でき
るようになっている。そのため本実施例では前記第１の
実施例に比べ、アクスルビームの変形を防止する上で一
層の効果がある。As described above, in this embodiment, the protection member 28 functioning as a sled extends below the front side wall 22C of the beam main body, so that the axle beam can reliably slide over obstacles. Therefore, this embodiment is more effective in preventing deformation of the axle beam than the first embodiment.

第５図は本発明の第３の実施例を示すもので、ビーム本
体２２に取付けられた保護部材３０は、前記第２の実施
例（第４図参照）と同様、横断面くの字形状に形成され
、さらにビーム本体２２下方に回り込んだ下方側縁部３
１はビーム本体リヤ側側壁２２Ｂ下方にまで延びている
。FIG. 5 shows a third embodiment of the present invention, in which the protection member 30 attached to the beam body 22 has a dogleg shape in cross section, similar to the second embodiment (see FIG. 4). A lower side edge 3 that is formed in
1 extends below the rear side wall 22B of the beam body.

このように本実施例では、ソリとして機能する保護部材
３０がビーム本体リヤ側側壁２２Ｂ下方にまで延びてい
るので、車輛走行速度が非常に遅い場合にも、アクスル
ビームは確実に障害物上を滑動することができる。In this embodiment, the protection member 30 that functions as a sled extends below the rear side wall 22B of the beam body, so that the axle beam can reliably move over an obstacle even when the vehicle travels at a very low speed. Can slide.

そのため、本実施例では、アクスルビームの変形を防止
する上で前記第２の実施例（第４図参照）よりもさらに
効果がある。Therefore, this embodiment is more effective than the second embodiment (see FIG. 4) in preventing deformation of the axle beam.

第６図は、本発明の第４の実施例を示すものである。保
護部材３２はビーム本体２２の下方に回シ込んでリヤ側
に突出するとともに、上方に湾曲し、リヤ側にもビーム
本体２２下方に向う傾斜外周面３２人が形成遅れている
。本実施例によれば、保護部材３２は、前進時のみなら
ず後進時においてもソリとして機能するので、アクスル
ビームの変形が確実に防止される。FIG. 6 shows a fourth embodiment of the invention. The protective member 32 is rotated under the beam main body 22 and protrudes toward the rear side, and is curved upward, so that an inclined outer circumferential surface 32 facing downward of the beam main body 22 is formed on the rear side as well. According to this embodiment, the protection member 32 functions as a sled not only when moving forward but also when moving backward, so deformation of the axle beam is reliably prevented.

第７図は横断面コ字形状のビーム本体４２が開口部４２
Ａを上向にして配設されており、フロント側側壁４２Ｃ
下端部に前記第１の実施例で示したと同様の形状の保護
部材２４（第１図及び第２図参照）が溶接されて固定さ
れている。なお、符号４３はビーム本体４２内の水、ｍ
などを排出する水抜孔である。FIG. 7 shows that a beam body 42 having a U-shaped cross section has an opening 42.
It is arranged with A facing upward, and the front side wall 42C
A protective member 24 (see FIGS. 1 and 2) having the same shape as that shown in the first embodiment is welded and fixed to the lower end. Note that the reference numeral 43 indicates water in the beam body 42, m
This is a drainage hole for draining water.

第８図は横断面り字形状のビーム本体５２、第８図は横
断面丁字形状のビーム本体６２、のフロント側側壁５２
Ｃ，６２Ｃにそれぞれ保護部材２４が固定された他の実
施例を示すものである。FIG. 8 shows the front side side wall 52 of the beam main body 52 having a T-shaped cross section, and FIG. 8 shows the beam main body 62 having a T-shaped cross section.
This shows another embodiment in which protective members 24 are fixed to C and 62C, respectively.

このようにアクスルビームの横断面形状は前記第１〜第
４の実施例に示されるＵ字形状に限定されるものではな
く、捩り剛性を適度に保持できる各種形状（例えば、第
７図〜第９図参照）であればよい。− 〔発明の効果〕 以上の説明から明らかなように、本発明によればアクス
ルビームが障害物と接触したとしてもアクスルビームの
変形を防止することができる。In this way, the cross-sectional shape of the axle beam is not limited to the U-shape shown in the first to fourth embodiments, but can have various shapes that can maintain appropriate torsional rigidity (for example, as shown in FIGS. 7 to 4). (See Figure 9) is sufficient. - [Effects of the Invention] As is clear from the above description, according to the present invention, even if the axle beam comes into contact with an obstacle, deformation of the axle beam can be prevented.

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

第１図はＦ、Ｆ、車における後輪懸架装置に本発明を適
用した第１の実施例を示す斜視図、第２図はその要部横
断面図、第３図（ａ）〜（Ｃ）は本発明の第１の実施例
の作用を説明する説明図、第４図は本発明の第２の実施
例を示す要部横断面図、第５図は本発明の第３の実施例
を示す要部横断面図、第６図は本発明の第４の実施例を
示す要部横断面図、第７図〜第９図は本発明のさらに他
の実施例を示す要部横断面図、第１０図は従来のＦ、Ｆ
。 車における後輪懸架装置の斜視図、第１１図は従来のア
クスルビームが障害物に接触する状態を示す断面図であ
る。 ６・・・）Ｌ’−１）７／７−ム、　８・・・コイルス
ブリング付ショツクアプンーパ、　　９・・・スタビラ
イザ、２１・・・アクスルビーム、　　２２，４２，５
２．６２・・・アクスルビーム本体、　２４．２Ｂ、　
３０．３２・・・アクスルビーム本体保護部材、　　２
４Ａ、２８Ａ、３０Ａ、３２Ａ・・・傾斜外周面。Fig. 1 is a perspective view showing a first embodiment in which the present invention is applied to a rear wheel suspension system for a car, Fig. 2 is a cross-sectional view of the main part thereof, and Figs. ) is an explanatory diagram explaining the operation of the first embodiment of the present invention, FIG. 4 is a cross-sectional view of main parts showing the second embodiment of the present invention, and FIG. 5 is a third embodiment of the present invention. FIG. 6 is a cross-sectional view of a main part showing a fourth embodiment of the present invention, and FIGS. 7 to 9 are cross-sectional views of main parts showing still other embodiments of the present invention. Figure 10 shows conventional F, F
. FIG. 11, which is a perspective view of a rear wheel suspension system for a vehicle, is a sectional view showing a conventional axle beam in contact with an obstacle. 6...) L'-1) 7/7-m, 8... Shock pump with coil spring, 9... Stabilizer, 21... Axle beam, 22, 42, 5
2.62...Axle beam body, 24.2B,
30.32...Axle beam body protection member, 2
4A, 28A, 30A, 32A... Inclined outer peripheral surface.

Claims (4)

【特許請求の範囲】[Claims] （１）車輛幅方向に延在するアクスルビーム本体のフロ
ント側側壁に、このフロント側側壁の下方に向かう傾斜
外周面を有し車輛幅方向に延びるアクスビーム本体保護
部材を取付けてなることを特徴とするアクスルビーム構
造。(1) An axle beam body protection member that has a downwardly inclined outer peripheral surface of the front side wall and extends in the vehicle width direction is attached to the front side wall of the axle beam body that extends in the vehicle width direction. Axle beam structure. （２）前記アクスルビーム本体は、横断面Ｕ字形形状に
形成され下方開口状態に配設されていることを特徴とす
る特許請求の範囲第１項記載のアクスルビーム構造。(2) The axle beam structure according to claim 1, wherein the axle beam body has a U-shaped cross section and is disposed in a downwardly open state. （３）前記アクスルビーム本体保護部材は、アクスルビ
ーム本体下方に回り込んでいることを特徴とする特許請
求の範囲第１項記載のアクスルビーム構造。(3) The axle beam structure according to claim 1, wherein the axle beam body protection member wraps around below the axle beam body. （４）前記アクスルビーム本体保護部材はアクスルビー
ム本体下方に回り込んでリヤ側に突出され、このリヤ側
突出部は上方に湾曲されて傾斜外周面が形成されている
ことを特徴とする特許請求の範囲第３項記載のアクスル
ビーム構造。(4) The axle beam body protection member wraps around below the axle beam body and protrudes toward the rear side, and this rear side protrusion is curved upward to form an inclined outer circumferential surface. The axle beam structure according to scope 3.
JP21099384A 1984-10-08 1984-10-08 Axle beam structure Pending JPS6189104A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP21099384A JPS6189104A (en) 1984-10-08 1984-10-08 Axle beam structure
DE19853535783 DE3535783A1 (en) 1984-10-08 1985-10-07 AXLE RACK
US07/129,900 US4813507A (en) 1984-10-08 1987-12-07 Axle beam including a protecting member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21099384A JPS6189104A (en) 1984-10-08 1984-10-08 Axle beam structure

Publications (1)

Publication Number Publication Date
JPS6189104A true JPS6189104A (en) 1986-05-07

Family

ID=16598547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21099384A Pending JPS6189104A (en) 1984-10-08 1984-10-08 Axle beam structure

Country Status (1)

Country Link
JP (1) JPS6189104A (en)

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