JP2000035029A - Bush mounting member - Google Patents

Bush mounting member

Info

Publication number
JP2000035029A
JP2000035029A JP10202061A JP20206198A JP2000035029A JP 2000035029 A JP2000035029 A JP 2000035029A JP 10202061 A JP10202061 A JP 10202061A JP 20206198 A JP20206198 A JP 20206198A JP 2000035029 A JP2000035029 A JP 2000035029A
Authority
JP
Japan
Prior art keywords
bush
main body
member main
portions
wall
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
JP10202061A
Other languages
Japanese (ja)
Inventor
Rentaro Kato
錬太郎 加藤
Yuichi Ogawa
雄一 小川
Masatoshi Enomoto
正敏 榎本
Masaharu Tochigi
雅晴 栃木
Naoki Nishikawa
直毅 西川
Noriyuki Iwameji
範行 岩目地
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.)
Sumitomo Riko Co Ltd
Showa Aluminum Can Corp
Original Assignee
Sumitomo Riko Co Ltd
Showa Aluminum 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 Sumitomo Riko Co Ltd, Showa Aluminum Corp filed Critical Sumitomo Riko Co Ltd
Priority to JP10202061A priority Critical patent/JP2000035029A/en
Priority to DE19983388T priority patent/DE19983388T1/en
Priority to GB0103561A priority patent/GB2358001B/en
Priority to PCT/JP1999/003847 priority patent/WO2000004296A1/en
Publication of JP2000035029A publication Critical patent/JP2000035029A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • 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
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/14—Mounting of suspension arms
    • B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
    • B60G2204/1432—Mounting of suspension arms on the vehicle body or chassis by vertical bolts or studs
    • 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
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/14—Mounting of suspension arms
    • B60G2204/148—Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
    • 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
    • B60G2204/41—Elastic mounts, e.g. bushings
    • 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
    • B60G2206/012—Hollow or tubular elements
    • 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
    • B60G2206/10—Constructional features of arms
    • B60G2206/11—Constructional features of arms the arm being a radius or track or torque or steering rod or stabiliser end link
    • 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
    • B60G2206/10—Constructional features of arms
    • B60G2206/122—Constructional features of arms the arm having L-shape
    • 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
    • B60G2206/70—Materials used in suspensions
    • B60G2206/71—Light weight materials
    • B60G2206/7102—Aluminium alloys
    • 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
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8103—Shaping by folding or bending
    • 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
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8105—Shaping by extrusion
    • 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
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8107—Shaping by hydroforming
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/05—Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a bush mounting member having high strength reliability and an inexpensive manufacturing cost, and also firmly mounting a bush, in a bush mounting member where a barlike member main body is bent into a nearly dog-leg state in a lengthwise direction with a bent part as the center. SOLUTION: A member main body 3 is composed of a hollow pipe material made of an aluminum extruded shape material, and circular bush mounting holes 9 are formed on both the end parts of the main body 3 to press fitted vibration isolating bushes 2 into the holes 9. Portions, on the bent direction side and the opposite side in the bent direction of at least the member main body in the bushes 2, are supported in the thickness direction, between the wall part 6 on the bent direction side and the wall part 7 on the opposite side in the bent direction, in the peripheral wall part of the main body 3.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】この発明は、例えば自動車に
用いられるサスペンションアーム、エンジンマウント、
リング等のブッシュ装着部材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension arm, an engine mount,
The present invention relates to a bush mounting member such as a ring.

【０００２】[0002]

【従来の技術】例えば、自動車に用いられているブッシ
ュ装着部材の一つに、アッパーアーム、ロアアーム、ト
レーリングアーム、トーションバー等のサスペンション
アーム用部材がある。2. Description of the Related Art For example, one of bush mounting members used in automobiles is a suspension arm member such as an upper arm, a lower arm, a trailing arm, and a torsion bar.

【０００３】この種のサスペンションアーム用部材は、
設置される場所に応じて様々な形状に形成されるもの
で、その一例として、図１５に示すようなものがある。
同図に示されたサスペンションアーム用部材（５１）
は、略く字状に打抜き形成された金属板製の部材本体
（５３）と、その両端部に溶接連結された金属押出形材
製のブッシュ装着部（５４）（５４）とを備えている。
同図中（５３ａ）は前記部材本体（５３）の屈曲部であ
る。前記ブッシュ装着部（５４）には、円形のブッシュ
装着孔（５５）が設けられており、このブッシュ装着孔
（５５）に円筒型のゴム製防振ブッシュ（５２）が圧入
装着されている。[0003] This type of suspension arm member includes:
It is formed in various shapes depending on the place where it is installed, and one example is shown in FIG.
Suspension arm member (51) shown in FIG.
Includes a metal plate member main body (53) stamped and formed in a substantially rectangular shape, and bush mounting portions (54) (54) made of a metal extruded profile welded and connected to both ends thereof. .
(53a) in the figure is a bent portion of the member main body (53). The bush mounting portion (54) is provided with a circular bush mounting hole (55), and a cylindrical rubber anti-vibration bush (52) is press-fitted into the bush mounting hole (55).

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、上記従
来のアーム用部材（５１）は、部材本体（５３）とブッ
シュ装着部（５４）とが溶接により連結されているもの
なので、その製造が面倒であり、しかもその溶接部（５
６）に割れ等の溶接欠陥が存在することがあるから、強
度的信頼性に欠けているものであった。However, since the conventional arm member (51) has the member main body (53) and the bush mounting portion (54) connected by welding, the manufacture thereof is troublesome. Yes, and the weld (5
6) In some cases, welding defects such as cracks were present, and thus the strength reliability was lacking.

【０００５】一方、図１６に示すように、部材本体（６
３）に直接、ブッシュ装着孔（６４）（６４）を穿設し
たアーム用部材（６１）も提案されている。しかしなが
ら、このアーム用部材（６１）の場合にあっては、部材
本体（６３）は金属板を打抜き形成することに製造され
たもので、打抜き形成するために金属板として薄肉のも
のを用いなければならないことから、ブッシュ（６２）
をブッシュ装着孔（６４）に装着した場合に、同図
（ｂ）に示すように、ブッシュ（６２）とブッシュ装着
孔（６４）の内周面との接触面積が小さく、このためブ
ッシュ（６２）のブッシュ装着孔（６４）における安定
性があまり良くなく、ブッシュ（６２）がブッシュ装着
孔（６４）から抜け易いものであった。On the other hand, as shown in FIG.
An arm member (61) in which a bush mounting hole (64) (64) is directly formed in 3) has also been proposed. However, in the case of the arm member (61), the member main body (63) is manufactured by stamping and forming a metal plate, and a thin metal plate must be used for stamping. Bush (62)
When the bush (62) is mounted in the bush mounting hole (64), the contact area between the bush (62) and the inner peripheral surface of the bush mounting hole (64) is small as shown in FIG. 4) The stability of the bush mounting hole (64) was not very good, and the bush (62) was easily pulled out of the bush mounting hole (64).

【０００６】特に、このアーム用部材（６１）は部材本
体（６３）が屈曲しているものであることから、例えば
ブッシュ（６２）（６２）に同図の矢印ＣやＤの方向の
荷重等、屈曲部（６３ａ）の曲率半径の寸法が変化する
方向の荷重が加わって、部材本体（６３）の屈曲部（６
３ａ）に曲げモーメントが作用する場合には、ブッシュ
（６２）がブッシュ装着孔（６４）における部材本体
（６３）の屈曲方向側や屈曲方向反対側から抜け易い。
すなわち、ブッシュ（６２）は、前記荷重Ｃあるいは荷
重Ｄにおける部材本体（６３）の屈曲方向の成分
（Ｃ1 ）あるいは屈曲方向反対側の成分（Ｄ1 ）を受け
て、部材本体（６３）の屈曲方向側あるいは屈曲方向反
対側に移動しようとするからである。なお、同図中Ｐ点
は前記部材本体（６３）の屈曲部（６３ａ）の曲率中心
である。In particular, since the arm member (61) is a member whose main body (63) is bent, for example, the bushings (62) and (62) load the bush (62) and (62) in the directions of arrows C and D in FIG. When a load is applied in the direction in which the dimension of the radius of curvature of the bent portion (63a) changes, the bent portion (6) of the member body (63) is applied.
When a bending moment acts on 3a), the bush (62) is likely to come off the bending direction side or the bending direction opposite side of the member main body (63) in the bush mounting hole (64).
That is, the bush (62) receives the component (C 1 ) in the bending direction of the member main body (63) or the component (D 1 ) on the side opposite to the bending direction under the load C or the load D, and This is because an attempt is made to move to the bending direction side or the side opposite to the bending direction. The point P in the drawing is the center of curvature of the bent portion (63a) of the member main body (63).

【０００７】更に、部材本体（６３）は、前記荷重Ｃあ
るいは荷重Ｄにおける部材本体（６３）の屈曲方向の成
分（Ｃ1 ）あるいは屈曲方向反対側の成分（Ｄ1 ）によ
って、ブッシュ装着孔（６４）の周縁部における屈曲方
向側の部位（６５）あるいは屈曲方向反対側の部位（６
６）において破断し易かった。Further, the component main body (63) is formed by the component (C 1 ) in the bending direction of the component main body (63) or the component (D 1 ) on the opposite side of the bending direction of the component main body (63) under the load C or the load D. (65) or a portion (6) on the side opposite to the bending direction in the peripheral portion of (64).
It was easy to break in 6).

【０００８】この発明は、このような技術背景に鑑みて
なされたもので、棒状の部材本体が屈曲部を中心として
長さ方向に略く字状に屈曲しているブッシュ装着部材に
おいて、高い強度的信頼性を有するとともに、製造コス
トが安く且つブッシュがしっかりと装着されているブッ
シュ装着部材を提供することを目的とする。The present invention has been made in view of such a technical background, and has a high strength in a bush mounting member in which a rod-shaped member main body is bent in a substantially rectangular shape in a length direction around a bent portion. It is an object of the present invention to provide a bush mounting member having high reliability, low manufacturing cost and firmly mounting a bush.

【０００９】[0009]

【課題を解決するための手段】上記目的を達成するた
め、この発明の第１のもの（以下、第１発明という）
は、棒状の金属押出形材製中空パイプ材からなるととも
に、屈曲部を中心として長さ方向に略く字状に屈曲して
いる部材本体の一部に、ブッシュが装着されているブッ
シュ装着部材であって、前記部材本体の周壁部における
屈曲方向側の壁部と屈曲方向反対側の壁部との間で、前
記ブッシュにおける少なくとも部材本体の屈曲方向側及
び屈曲方向反対側の部分がその厚さ方向において支持さ
れていることを特徴とする。In order to achieve the above object, a first aspect of the present invention (hereinafter referred to as a first aspect).
Is a rod-shaped extruded metal hollow pipe material, and a bush mounting member in which a bush is mounted on a part of a member main body that is bent in a substantially rectangular shape in the length direction around the bent portion. Between the wall portion on the bending direction side and the wall portion on the opposite side in the bending direction of the peripheral wall portion of the member main body, at least a portion of the bush on the bending direction side and the side opposite to the bending direction of the member main body has a thickness. Characterized by being supported in the vertical direction.

【００１０】これによれば、部材本体として、棒状の金
属押出形材製中空パイプ材を用いることにより、製造効
率が向上するし、軽量化が図られる。また、ブッシュが
部材本体に装着されているので、上記従来技術で示した
ようにブッシュ装着部を用いてこれを部材本体に溶接に
より連結するといった面倒な作業が必要なくなり、この
ため製造効率が更に向上するし、溶接部も存在しなくな
るので、強度的信頼性が向上する。According to this, by using a rod-shaped hollow pipe made of extruded metal material as the member main body, the production efficiency is improved and the weight is reduced. Further, since the bush is mounted on the member main body, it is not necessary to perform a troublesome operation of connecting the bush to the member main body by using the bush mounting portion as shown in the above-mentioned prior art, thereby further increasing the manufacturing efficiency. In addition, since there is no welded portion, the strength reliability is improved.

【００１１】また、部材本体の周壁部における屈曲方向
側の壁部と屈曲方向反対側の壁部との間で、ブッシュが
支持されているので、ブッシュに上記従来技術で示した
ような荷重が加わった場合であっても、その荷重におけ
る部材本体の屈曲方向の成分又は屈曲方向反対側の成分
により生じる破断が、屈曲方向側の壁部あるいは屈曲方
向反対側の壁部によって阻止される。しかも、ブッシュ
における少なくとも部材本体の屈曲方向側及び屈曲方向
反対側の部分が、その厚さ方向において支持されている
から、部材本体の屈曲方向側あるいは屈曲方向反対側へ
のブッシュの移動を確実に阻止することができる。Further, since the bush is supported between the wall on the bending direction side and the wall on the side opposite to the bending direction in the peripheral wall of the member main body, the load as shown in the above prior art is applied to the bush. Even if it is applied, breakage caused by a component in the bending direction or a component on the opposite side of the bending direction of the member main body under the load is prevented by the wall portion on the bending direction side or the wall portion on the opposite side to the bending direction. In addition, since at least portions of the bush on the bending direction side and the bending direction opposite side of the member main body are supported in the thickness direction, the movement of the bush to the bending direction side or the bending direction opposite side of the member main body is ensured. Can be blocked.

【００１２】また、この発明の第２のもの（以下、第２
発明という）は、対向状に配置された一対の側板部と、
これら両側板部を連結する連結板部とを有する棒状の金
属押出形材からなるとともに、前記両側板部のうち一方
の側板部を内側に他方の側板部を外側にして屈曲部を中
心として長さ方向に略く字状に屈曲している部材本体の
一部に、ブッシュが装着されているブッシュ装着部材で
あって、前記部材本体の両側板部の間で、前記ブッシュ
における少なくとも部材本体の屈曲方向側及び屈曲方向
反対側の部分がその厚さ方向において支持されているこ
とを特徴とする。Further, a second aspect of the present invention (hereinafter referred to as a second aspect)
The invention) is a pair of side plate portions arranged in opposition,
It is made of a rod-shaped metal extruded shape having a connecting plate portion for connecting these both side plate portions, and has a length around a bent portion with one of the side plate portions inside and the other side plate portion outside. A bush mounting member in which a bush is mounted on a part of the member main body that is bent in a substantially rectangular shape in the vertical direction, and between both side plate portions of the member main body, at least the member main body of the bush is provided. The bending direction side and the part opposite to the bending direction are characterized by being supported in the thickness direction.

【００１３】これによれば、上記第１発明と同様に、部
材本体として、棒状の金属押出形材を用いることによ
り、製造効率が向上する。また、部材本体にブッシュが
装着されているので、製造効率が更に向上するし、強度
的信頼性が向上する。さらに、部材本体の両側板部の間
で、ブッシュが少なくともその厚さ方向において支持さ
れているので、前記荷重における部材本体の屈曲方向の
成分あるいは屈曲方向反対側の成分により生じる破断
が、両側板部によって阻止される。また、ブッシュにお
ける少なくとも部材本体の屈曲方向側及び屈曲方向反対
側の部分が、その厚さ方向において支持されているか
ら、部材本体の屈曲方向側あるいは屈曲方向反対側への
ブッシュの移動を確実に阻止することができる。According to this, as in the first aspect of the invention, by using a rod-shaped extruded metal material as the member main body, the production efficiency is improved. Further, since the bush is mounted on the member main body, manufacturing efficiency is further improved, and strength reliability is improved. Further, since the bush is supported at least in the thickness direction between the both side plate portions of the member main body, breakage caused by a component in the bending direction of the member main body or a component on the opposite side of the bending direction due to the load is caused. Blocked by the department. In addition, since at least portions of the bush on the bending direction side and the bending direction opposite side of the member main body are supported in the thickness direction, the movement of the bush to the bending direction side or the bending direction opposite side of the member main body is reliably performed. Can be blocked.

【００１４】[0014]

【発明の実施の形態】次に、この発明の実施形態を図面
に基づいて説明する。Next, an embodiment of the present invention will be described with reference to the drawings.

【００１５】図１〜図５は、第１発明の第１実施形態を
示している。図１において、（１）はブッシュ装着部材
としてのサスペンションアーム用部材である。1 to 5 show a first embodiment of the first invention. In FIG. 1, (1) is a suspension arm member as a bush mounting member.

【００１６】同図に示すアーム用部材（１）は、所定長
さを有する棒状のアルミニウム（その合金を含む、以下
同じ）押出形材製の偏平な中空パイプ材からなる部材本
体（３）の両端部に、厚さ方向に貫通する円形のブッシ
ュ装着孔（９）（９）が形成されるとともに、該ブッシ
ュ装着孔（９）（９）に円筒型のゴム製防振ブッシュ
（２）（２）が圧入されているものである。The arm member (1) shown in FIG. 1 is a member body (3) made of a flat hollow pipe made of extruded bar-shaped aluminum (including its alloy, the same applies hereinafter) having a predetermined length. At both ends, circular bush mounting holes (9) and (9) penetrating in the thickness direction are formed, and cylindrical rubber anti-vibration bushes (2) and (2) are formed in the bush mounting holes (9) and (9). 2) is press-fitted.

【００１７】図２（ｃ）に示すように、前記部材本体
（３）の厚さは、前記ブッシュ（２）の厚さと同寸に設
定されている。また、前記ブッシュ装着孔（９）の径
は、前記ブッシュ（２）の外径よりも若干小寸に設定さ
れており、これによりブッシュ（９）をブッシュ装着孔
（９）に圧入することができるようになっている。ま
た、前記部材本体（３）は、上述したようにその厚さが
前記ブッシュ（２）の厚さと同寸に設定されているか
ら、ブッシュ（３）をブッシュ装着孔（９）に圧入した
状態において、ブッシュ（２）の厚さ方向両端部がブッ
シュ装着孔（９）からはみ出ないものとなされている。
また、前記ブッシュ（２）の中央部には、厚さ方向に貫
通した支軸部材（２ａ）が設けられている。As shown in FIG. 2C, the thickness of the member main body (3) is set to the same size as the thickness of the bush (2). The diameter of the bush mounting hole (9) is set slightly smaller than the outer diameter of the bush (2), so that the bush (9) can be pressed into the bush mounting hole (9). I can do it. Since the thickness of the member main body (3) is set to the same size as the thickness of the bush (2) as described above, the state in which the bush (3) is pressed into the bush mounting hole (9). , Both ends of the bush (2) in the thickness direction do not protrude from the bush mounting hole (9).
A shaft member (2a) penetrating in the thickness direction is provided at the center of the bush (2).

【００１８】前記部材本体（３）の周壁部は、図３
（ａ）に示すように、幅方向に向かってテーパ状になる
ように対向配置された平板状の第１及び第２壁部（４）
（５）と、該第１及び第２壁部（４）（５）をその幅方
向両端部において連結した断面円弧状の第３及び第４壁
部（６）（７）とから構成されている。また、この中空
パイプ材の第３壁部（６）における厚さは、第４壁部
（７）における厚さよりも大寸に設定されている。ま
た、同図において（８）は、中空パイプ材の中空部を示
している。The peripheral wall of the member body (3) is shown in FIG.
As shown in (a), first and second flat plate-shaped wall portions (4) arranged to face each other so as to be tapered in the width direction.
(5) and third and fourth wall portions (6) and (7) having an arc-shaped cross section in which the first and second wall portions (4) and (5) are connected at both ends in the width direction. I have. The thickness of the hollow pipe material at the third wall (6) is set to be larger than the thickness at the fourth wall (7). Also, in the figure, (8) shows the hollow portion of the hollow pipe material.

【００１９】そして、この部材本体（３）は、同図
（ｂ）に示すように、前記中空パイプ材を、その長さ方
向の中間部において前記第３壁部（６）を内側に第４壁
部（７）を外側にして、公知の曲げ加工手段により強制
的に屈曲させて略く字状に形成し、次いで、この中空パ
イプ材の長さ方向両端部を、同図（ｃ）に示すように、
その厚さ方向に打ち抜くことにより、前記ブッシュ装着
孔（９）（９）を形成したものである。したがって、こ
の第１実施形態の部材本体（３）は、前記第３壁部
（６）が周壁部における屈曲方向側の壁部となり、前記
第４壁部（７）が周壁部における屈曲方向反対側の壁部
となる。Then, as shown in FIG. 2B, the member main body (3) moves the hollow pipe member at the intermediate portion in the length direction with the third wall portion (6) inside the fourth member. With the wall (7) facing outward, it is forcibly bent by a known bending means to form a substantially rectangular shape. Then, both ends in the longitudinal direction of this hollow pipe material are shown in FIG. As shown,
The bush mounting holes (9) and (9) are formed by punching in the thickness direction. Therefore, in the member main body (3) of the first embodiment, the third wall portion (6) is a wall portion in the bending direction of the peripheral wall portion, and the fourth wall portion (7) is opposite to the bending direction in the peripheral wall portion. Side wall.

【００２０】前記屈曲工程において、前述したように中
空パイプ材の第３壁部（６）における厚さは、第４壁部
（７）における厚さよりも大寸に設定されているから、
中空パイプ材を容易に屈曲することができる。In the bending step, as described above, the thickness of the hollow pipe material at the third wall (6) is set to be larger than the thickness at the fourth wall (7).
The hollow pipe member can be easily bent.

【００２１】前記曲げ加工手段としては、特に限定され
ず、例えばプレス曲げ、回転曲げを採用することがで
き、あるいはパイプベンダー、ストレッチベンダー、Ｆ
ＣＢＰを用いて曲げ加工を行っても良い。また、前記ブ
ッシュ装着孔（９）の孔開け手段としては、例えばプレ
ス打抜きを採用することができ、あるいは切削加工によ
って孔開けを行っても良い。The bending means is not particularly limited, and may be, for example, press bending or rotary bending, or may be a pipe bender, a stretch bender, or a Fender.
The bending may be performed using CBP. As the means for forming the bush mounting hole (9), for example, press punching can be employed, or the hole may be formed by cutting.

【００２２】さらに、前記孔開け加工の際に、第３及び
第４壁部（６）（７）におけるブッシュ装着孔（９）の
近傍の部位が円弧状に切り欠かれて、部材本体（３）に
干渉防止用の切欠き部（１１）（１１）が形成されてい
る。この切欠き部（１１）（１１）は、自動車のフレー
ムの近傍に存在することのある干渉部位が部材本体
（３）に当たらないようにするためのものである。Further, at the time of the hole making process, portions of the third and fourth wall portions (6) and (7) near the bush mounting hole (9) are cut out in an arc shape, and the member body (3) is cut out. ) Are formed with notches (11) and (11) for preventing interference. The notches (11) and (11) are for preventing an interference portion that may be present near the frame of the automobile from hitting the member main body (3).

【００２３】また、図１に示すように、第１及び第２壁
部（４）（５）には、中空部（８）と外部とを連通す
る、空気抜きや水抜き等を目的とした小孔（１２）が穿
設されている。As shown in FIG. 1, the first and second wall portions (4) and (5) are provided with a small portion for communicating air between the hollow portion (8) and the outside, and for removing air or water. A hole (12) is drilled.

【００２４】こうして得られた部材本体（３）におい
て、第１及び第２壁部（４）（５）には、図４（ａ）及
び図５に示すように、前記ブッシュ装着孔（９）（９）
が形成されるとともに、第３及び第４壁部（６）（７）
の対向面には、このブッシュ装着孔（９）（９）におけ
る部材本体（３）の幅方向両側の部分を構成する凹部
（１０）（１０）が、部材本体（３）の厚さ方向に沿っ
て形成されている。In the member body (3) thus obtained, the first and second wall portions (4) (5) are provided with the bush mounting holes (9) as shown in FIGS. (9)
Are formed, and the third and fourth wall portions (6) and (7) are formed.
On the opposing surface of the main body (3), recesses (10) and (10) constituting portions on both sides in the width direction of the member main body (3) in the bush mounting holes (9) and (9) are formed in the thickness direction of the member main body (3). It is formed along.

【００２５】そして、このブッシュ装着孔（９）（９）
にブッシュ（２）を圧入することによって、図４（ｂ）
に示すように、ブッシュ（２）が部材本体（３）に装着
されている。The bush mounting holes (9) and (9)
By pressing the bush (2) into the
As shown in (1), the bush (2) is mounted on the member body (3).

【００２６】このブッシュ（２）の装着状態において、
ブッシュ（２）における部材本体（３）の幅方向両側の
部分は、第３壁部（６）と第４壁部（７）との間で、第
１及び第２壁部（４）（５）のブッシュ装着孔（９）
（９）と、第３及び第４壁部（６）（７）の凹部（１
０）（１０）とによって、ブッシュ（２）の厚さ方向の
全域において支持されている。一方、ブッシュ（２）に
おける部材本体（３）の長さ方向両側の部分は、第１及
び第２壁部（４）（５）のブッシュ装着孔（９）（９）
によって、支持されている。In the mounted state of the bush (2),
Portions of the bush (2) on both sides in the width direction of the member main body (3) are formed between the third wall portion (6) and the fourth wall portion (7) by the first and second wall portions (4) (5). ) Bush mounting hole (9)
(9) and concave portions (1) of the third and fourth wall portions (6) and (7).
0) and (10), the bush (2) is supported over the entire area in the thickness direction. On the other hand, portions on both sides in the length direction of the member body (3) in the bush (2) are bush mounting holes (9) (9) in the first and second wall portions (4) and (5).
Supported by

【００２７】このようにして製作されたアーム用部材
（１）は、中空パイプ材から製造されているので、軽量
なものとなっている。しかも、その中空パイプ材はアル
ミニウムからなるので、極めて軽量なものとなってい
る。さらに、そのアルミニウム中空パイプ材は押出形材
製なので、これを能率的にかつコスト的に有利に製造す
ることができる。また、このサスペンションアーム用部
材（１）は、部材本体（３）に直接、ブッシュ（２）が
装着されているものなので、溶接部が存在せず、強度的
信頼性が高いものとなっている。The arm member (1) thus manufactured is lightweight because it is manufactured from a hollow pipe material. Moreover, since the hollow pipe material is made of aluminum, it is extremely lightweight. Further, since the aluminum hollow pipe material is made of an extruded shape, it can be manufactured efficiently and cost-effectively. Further, since the suspension arm member (1) has the bush (2) attached directly to the member body (3), there is no welded portion, and the strength reliability is high. .

【００２８】ところで、このような構成のサスペンショ
ンアーム用部材（１）は、その両端部に装着された前記
ブッシュ（２）（２）を介して自動車のフレームに取り
付けられるもので、図１（ａ）に示すように、ブッシュ
（２）（２）に両者を接近させる方向の荷重Ａや両者を
引き離す方向の荷重Ｂといった屈曲部（３ａ）の曲率半
径の寸法が変化する方向の荷重が加わって、部材本体
（３）の屈曲部（３ａ）に曲げモーメントが作用するよ
うに設置されるものである。このようにブッシュ（２）
（２）に加わった荷重Ａあるいは荷重Ｂは、部材本体
（３）の屈曲部（３ａ）において弾性的に受け止められ
る一方、部材本体（３）はこの荷重Ａ、Ｂによって屈曲
部（３ａ）において弾性変形して撓むこととなる。図１
（ａ）中、ｏ点は部材本体（３）の屈曲部（３ａ）の曲
率中心である。また、図２（ｂ）中、ｙ軸は部材本体
（３）の屈曲部（３ａ）に作用する曲げモーメントに対
する部材本体（３）の横断面の中立軸である。By the way, the suspension arm member (1) having such a configuration is attached to the frame of the automobile through the bushes (2) and (2) mounted on both ends thereof, and is shown in FIG. ), A load in a direction in which the radius of curvature of the bent portion (3a) changes, such as a load A in a direction in which the bushes (2) and (2) approach each other and a load B in a direction in which the bushes (2) are separated from each other. , Is installed so that a bending moment acts on the bending portion (3a) of the member body (3). Thus the bush (2)
The load A or the load B applied to (2) is elastically received at the bent portion (3a) of the member body (3), while the member body (3) is bent at the bent portion (3a) by the loads A and B. It will be elastically deformed and bent. FIG.
In (a), point o is the center of curvature of the bent portion (3a) of the member body (3). In FIG. 2B, the y-axis is a neutral axis of the cross section of the member main body (3) with respect to a bending moment acting on the bent portion (3a) of the member main body (3).

【００２９】而して、このサスペンションアーム用部材
（１）にあっては、ブッシュ（２）に例えば荷重Ａが加
わった場合には、その荷重Ａにおける部材本体（３）の
屈曲方向の成分（Ａ1 ）によって、ブッシュ（２）は部
材本体（３）の第３壁部（６）側に向かって移動しよう
とする。しかし、このブッシュ（２）における部材本体
（３）の第３壁部（６）側の部分は、上述したように第
１及び第２壁部（４）（５）のブッシュ装着孔（９）
（９）と、第３壁部（６）の凹部（１０）とによって、
ブッシュ（２）の厚さ方向全域において支持されている
から、このブッシュ（２）の第３壁部（６）側への移動
を確実に阻止することができる。これと同じ理由によ
り、ブッシュ（２）に荷重Ｂが加わった場合にあって
も、ブッシュ（２）における部材本体（３）の第４壁部
（７）側の部分は、第１及び第２壁部（４）（５）のブ
ッシュ装着孔（９）（９）と、第４壁部（７）の凹部
（１０）とによって、ブッシュ（２）の厚さ方向全域に
おいて支持されているので、ブッシュ（２）の第４壁部
（７）側への移動を確実に阻止することができる。In the suspension arm member (1), when, for example, a load A is applied to the bush (2), the component of the bending direction of the member body (3) at the load A ( by a 1), bush (2) tries to move toward the third wall portion of the member body (3) (6) side. However, the portion of the bush (2) on the third wall (6) side of the member body (3) is, as described above, a bush mounting hole (9) of the first and second wall (4) (5).
(9) and the concave portion (10) of the third wall portion (6),
Since the bush (2) is supported over the entire area in the thickness direction, the movement of the bush (2) toward the third wall (6) can be reliably prevented. For the same reason, even when the load B is applied to the bush (2), the portion of the bush (2) on the fourth wall (7) side of the member body (3) is the first and the second. The bush (2) is supported in the entire thickness direction of the bush (2) by the bush mounting holes (9) (9) of the walls (4) (5) and the recess (10) of the fourth wall (7). Thus, the movement of the bush (2) toward the fourth wall (7) can be reliably prevented.

【００３０】さらに、このアーム用部材（１）にあって
は、このように荷重Ａあるいは荷重Ｂが加わった場合で
あっても、その荷重における部材本体（３）の屈曲方向
の成分（Ａ1 ）あるいは屈曲方向反対側の成分（Ｂ1 ）
により生じる破断を、第３壁部（６）あるいは第４壁部
（７）によって阻止することができる。Further, in the arm member (1), even when the load A or the load B is applied as described above, the component (A 1 ) in the bending direction of the member body (3) under the load. ) Or the component on the opposite side of the bending direction (B 1 )
Can be prevented by the third wall portion (6) or the fourth wall portion (7).

【００３１】この第１発明は、上記第１実施形態に限定
されず、例えば以下に示す第２〜第８実施形態のもので
あっても良い。なお、これら実施形態を示す各図面に
は、上記第１実施形態と同一要素に同一の符号が付され
ている。The first invention is not limited to the first embodiment, but may be, for example, the following second to eighth embodiments. In the drawings showing these embodiments, the same elements as those in the first embodiment are denoted by the same reference numerals.

【００３２】図６は、第１発明の第２実施形態を示して
いる。この第２実施形態のアーム用部材（１）の部材本
体（３）は、所定長さを有する棒状のアルミニウム押出
形材製の中空角パイプ材からなるものである。この部材
本体（１）の周壁部は、対向状に配置された一対の平板
状の第１及び第２壁部（４）（５）と、該第１及び第２
壁部（４）（５）を幅方向両端部において連結した平板
状の第３及び第４壁部（６）（７）とから構成されてい
る。さらに、この中空角パイプ材の中空部（８）には、
前記第１及び第２壁部（４）（５）を幅方向中間部にお
いて間隔的に連結した、互いに対向する一対の補強用桟
部（１３）（１３）が長さ方向に沿って形成されてい
る。そして、この部材本体（３）は、図示されていない
が、前記中空角パイプ材を、その長さ方向の中間部にお
いて前記第３壁部（６）を内側に第４壁部（７）を外側
にして屈曲部を中心として長さ方向にく字状に屈曲して
いるものである。FIG. 6 shows a second embodiment of the first invention. The member body (3) of the arm member (1) of the second embodiment is made of a rod-shaped hollow square pipe made of extruded aluminum having a predetermined length. The peripheral wall of the member main body (1) has a pair of flat first and second wall portions (4) and (5) arranged opposite to each other, and the first and second wall portions.
The third and fourth wall portions (6) and (7) are formed by connecting the wall portions (4) and (5) at both ends in the width direction. Further, in the hollow portion (8) of the hollow square pipe material,
A pair of opposing reinforcing bars (13) (13), which connect the first and second wall portions (4) and (5) at intervals in a width direction intermediate portion, are formed along the length direction. ing. Although not shown, the member main body (3) includes the hollow square pipe member and the fourth wall portion (7) inside the third wall portion (6) at an intermediate portion in the longitudinal direction. It is bent outward in the longitudinal direction around the bent portion on the outside.

【００３３】そして、この部材本体（３）の両端部の第
１及び第２壁部（４）（５）には、ブッシュ装着孔
（９）（９）が形成されるとともに、両補強用桟部（１
３）（１３）の対向面には、このブッシュ装着孔（９）
（９）における部材本体（２）の幅方向両側の部分を構
成する凹部（１０）（１０）が、部材本体（３）の厚さ
方向に沿って形成されている。In the first and second walls (4, 5) at both ends of the member body (3), bush mounting holes (9, 9) are formed. Department (1
3) The bush mounting hole (9)
Concave portions (10) and (10), which constitute portions on both sides in the width direction of the member body (2) in (9), are formed along the thickness direction of the member body (3).

【００３４】このブッシュ装着孔（９）（９）に、同図
（ａ）に示すように、ブッシュ（２）を圧入することに
よって、同図（ｂ）及び（ｃ）に示すように、ブッシュ
（２）が部材本体（３）に装着されている。The bush (2) is press-fitted into the bush mounting holes (9) and (9) as shown in FIG. (2) is mounted on the member body (3).

【００３５】このブッシュ装着状態において、ブッシュ
（２）における部材本体（３）の幅方向両側の部分は、
第３壁部（６）と第４壁部（７）との間で、第１及び第
２壁部（４）（５）のブッシュ装着孔（９）（９）と、
両補強用桟部（１３）（１３）の凹部（１０）（１０）
とによって、その厚さ方向の略全域において支持されて
いる。In this bush mounted state, portions of the bush (2) on both sides in the width direction of the member body (3) are:
Bush mounting holes (9) (9) in the first and second wall portions (4) (5) between the third wall portion (6) and the fourth wall portion (7);
Recesses (10) (10) of both reinforcing bars (13) (13)
And is supported in substantially the entire area in the thickness direction.

【００３６】図７は、第１発明の第３実施形態を示すも
のである。この第３実施形態のアーム用部材（１）の部
材本体（３）は、上記第２実施形態の部材本体（３）の
第１及び第２壁部（４）（５）の各外面における両補強
用桟部（１３）（１３）との連結位置に、各１対の凸条
（１４）（１４）、（１４）（１４）が長さ方向に沿っ
て形成されているものである。FIG. 7 shows a third embodiment of the first invention. The member main body (3) of the arm member (1) according to the third embodiment is provided on both outer surfaces of the first and second wall portions (4) and (5) of the member main body (3) according to the second embodiment. A pair of ridges (14), (14), (14), (14) is formed along the length direction at the connection position with the reinforcing bars (13) (13).

【００３７】そして、部材本体（３）の両端部の第１及
び第２壁部（４）（５）には、ブッシュ装着孔（９）
（９）が形成されている。さらに、両補強用桟部（１
３）（１３）の対向面及び凸条（１４）（１４）の対向
面は、このブッシュ装着孔（９）（９）に圧入されるブ
ッシュ（２）における部材本体（３）の幅方向両側の部
分に、ブッシュ（２）の厚さ方向に沿って線接触状態に
当接するものとなされている。The first and second wall portions (4) and (5) at both ends of the member body (3) have bush mounting holes (9).
(9) is formed. Further, both reinforcing bars (1
3) The opposing surfaces of (13) and the opposing surfaces of the ridges (14) and (14) are both sides of the member body (3) in the width direction of the bush (2) which is press-fitted into the bush mounting holes (9) and (9). Is brought into contact with the portion in a line contact state along the thickness direction of the bush (2).

【００３８】このブッシュ装着孔（９）（９）に、同図
（ａ）に示すように、ブッシュ（２）を圧入することに
よって、同図（ｂ）及び（ｃ）に示すように、ブッシュ
（２）が部材本体（３）に装着されている。The bush (2) is press-fitted into the bush mounting holes (9) and (9) as shown in FIG. (2) is mounted on the member body (3).

【００３９】このブッシュ装着状態において、ブッシュ
（２）における部材本体（３）の幅方向両側の部分は、
第３壁部（６）と第４壁部（７）の間で、第１及び第２
壁部（４）（５）のブッシュ装着孔（９）（９）と、両
補強用桟部（１３）（１３）の対向面と、凸条（１４）
（１４）（１４）（１４）の対向面とによって、その厚
さ方向全域において支持されている。In this bush mounted state, the portions of the bush (2) on both sides in the width direction of the member body (3) are:
Between the third wall part (6) and the fourth wall part (7), the first and the second
Bush mounting holes (9) (9) in walls (4) (5), opposing surfaces of both reinforcing bars (13) (13), and ridges (14)
(14) The entire surface in the thickness direction is supported by the opposing surfaces of (14) and (14).

【００４０】図８は、第１発明の第４実施形態を示すも
のである。この第４実施形態のアーム用部材（１）の部
材本体（３）は、上記第３実施形態の部材本体（３）と
同一の構成で、前記ブッシュ装着孔（９）にブッシュ
（２）が圧入されているものである。そして、この部材
本体（３）は、前記一対の凸条（１４）（１４）を、同
図（ｂ）に示すようにブッシュ（２）の外周面に沿って
塑性変形させることにより、ブッシュ（２）をこの凸条
（１５）（１５）の対向面で挟着しているものである。
こうすることにより、ブッシュ（２）をよりしっかりと
支持することができ、このためブッシュ（２）のブッシ
ュ装着孔（９）における安定性をより一層向上させるこ
とができる。FIG. 8 shows a fourth embodiment of the first invention. The member body (3) of the arm member (1) of the fourth embodiment has the same configuration as the member body (3) of the third embodiment, and a bush (2) is provided in the bush mounting hole (9). It is press-fitted. The member main body (3) plastically deforms the pair of ridges (14) and (14) along the outer peripheral surface of the bush (2) as shown in FIG. 2) is sandwiched between the opposing surfaces of the ridges (15) and (15).
By doing so, the bush (2) can be more firmly supported, so that the stability of the bush (2) in the bush mounting hole (9) can be further improved.

【００４１】図９は、第１発明の第５実施形態を示すも
のである。この第５実施形態のアーム用部材（１）の部
材本体（３）は、所定長さを有する棒状のアルミニウム
押出形材製の中空角パイプ材からなるものである。この
部材本体（３）の周壁部は、対向状に配置された一対の
平板状の第１及び第２壁部（４）（５）と、該第１及び
第２壁部（４）（５）を幅方向両端部において連結した
平板状の第３及び第４壁部（６）（７）とから構成され
ている。そして、この部材本体（３）は、図示されてい
ないが、前記中空角パイプ材をその長さ方向の中間部に
おいて前記第３壁部（６）を内側に第４壁部（７）を外
側にして屈曲部を中心として長さ方向にく字状に屈曲し
ているものである。FIG. 9 shows a fifth embodiment of the first invention. The member main body (3) of the arm member (1) of the fifth embodiment is made of a rod-shaped hollow square pipe made of extruded aluminum having a predetermined length. The peripheral wall of the member main body (3) has a pair of flat first and second wall portions (4) and (5) arranged opposite to each other, and the first and second wall portions (4) and (5). ) Are connected at both ends in the width direction with flat third and fourth wall portions (6) and (7). Although not shown, the member main body (3) is configured such that the hollow square pipe member is provided with the third wall portion (6) inside and the fourth wall portion (7) outside at a middle portion in the longitudinal direction. And is bent in a V-shape in the length direction around the bent portion.

【００４２】この部材本体（３）の両端部の中空部
（８）には、アルミニウム製の補強用中子（１５）が圧
入されている。そして、この部材本体（３）の端部に、
厚さ方向に貫通したブッシュ装着孔（９）（９）（１
６）が形成されている。In the hollow portions (8) at both ends of the member body (3), aluminum reinforcing cores (15) are press-fitted. And, at the end of this member body (3),
Bush mounting holes (9) (9) (1)
6) is formed.

【００４３】このブッシュ装着孔（９）（９）（１６）
に、同図（ｂ）に示すように、ブッシュ（２）を圧入す
ることによって、ブッシュ（２）が部材本体（３）に装
着される。The bush mounting holes (9) (9) (16)
Then, as shown in FIG. 2B, the bush (2) is mounted on the member main body (3) by press-fitting the bush (2).

【００４４】このブッシュ装着状態において、ブッシュ
（２）における部材本体（３）の幅方向両側の部分と部
材本体（３）の長さ方向両側の部分とは、第３壁部
（６）と第４壁部（７）との間で、第１及び第２壁部
（４）（５）のブッシュ装着孔（９）（９）と、補強用
中子（１５）に形成されたブッシュ装着孔（１６）とに
よって、その厚さ方向全域において支持されることとな
る。In this bush mounted state, the portions of the bush (2) on both sides in the width direction of the member main body (3) and the portions on both sides in the length direction of the member main body (3) are connected to the third wall portion (6). Between the four wall portions (7), the bush mounting holes (9) and (9) of the first and second wall portions (4) and (5) and the bush mounting hole formed in the reinforcing core (15). With (16), it is supported in the entire area in the thickness direction.

【００４５】図１０は、第１発明の第６実施形態を示す
ものである。この第６実施形態のアーム用部材（１）の
部材本体（３）は、所定長さを有する棒状のアルミニウ
ム押出形材製の中空丸パイプ材からなるものである。そ
して、この部材本体（３）は、同図（ａ）に示すよう
に、前記中空丸パイプ材をその長さ方向の中間部におい
て屈曲部（３ａ）を中心として長さ方向にく字状に屈曲
しているものである。FIG. 10 shows a sixth embodiment of the first invention. The member body (3) of the arm member (1) of the sixth embodiment is made of a rod-shaped hollow round pipe made of extruded aluminum having a predetermined length. Then, as shown in FIG. 2A, the member main body (3) is formed by forming the hollow round pipe material into a V-shape in the longitudinal direction with the bent portion (3a) at the center in the longitudinal direction. It is bent.

【００４６】そして、この部材本体（３）の両端部の周
壁部における軸線方向及び屈曲方向に対して直交する方
向側の両壁部（４´）（５´）には、ブッシュ装着孔
（９）（９）が形成されるとともに、部材本体（３）の
両端部の周壁部における屈曲方向側の壁部（６´）及び
屈曲方向反対側の壁部（７´）の内面には、このブッシ
ュ装着孔（９）（９）における部材本体（３）の幅方向
両側の部分を構成する凹部（１０）（１０）が、軸線方
向及び屈曲方向に対して直交する方向に沿って形成され
ている。A bush mounting hole (9) is formed in both wall portions (4 ') (5') of the peripheral wall portions at both ends of the member main body (3) on the side orthogonal to the axial direction and the bending direction. ) And (9) are formed, and the inner surfaces of the wall portion (6 ′) on the bending direction side and the wall portion (7 ′) on the opposite side in the bending direction are formed on the peripheral wall portions at both ends of the member body (3). Concave portions (10) and (10) forming portions on both sides in the width direction of the member main body (3) in the bush mounting holes (9) and (9) are formed along a direction orthogonal to the axial direction and the bending direction. I have.

【００４７】このブッシュ装着孔（９）（９）に、ブッ
シュ（図示せず）を圧入することによって、ブッシュが
部材本体（３）に装着される。The bush (not shown) is press-fitted into the bush mounting holes (9) (9), whereby the bush is mounted on the member body (3).

【００４８】このブッシュ装着状態において、ブッシュ
（２）における部材本体（３）の幅方向両側の部分は、
部材本体（３）の周壁部における屈曲方向側の壁部（６
´）と屈曲方向反対側の壁部（７´）との間で、部材本
体（３）の周壁部における前記両壁部（４´）（５´）
のブッシュ装着孔（９）（９）と、部材本体（３）の周
壁部における屈曲方向側の壁部（６´）及び屈曲方向反
対側の壁部（７´）の凹部（１０）（１０）とによっ
て、その厚さ方向全域において支持されることとなる。In this bush mounted state, portions of the bush (2) on both sides in the width direction of the member body (3) are:
The wall (6) on the bending direction side of the peripheral wall of the member body (3)
') And the wall (7') on the side opposite to the bending direction, the two walls (4 ') (5') in the peripheral wall of the member body (3).
Bush mounting holes (9), (9), and concave portions (10), (10) of the wall portion (6 ') on the bending direction side and the wall portion (7') on the opposite side to the bending direction in the peripheral wall portion of the member body (3). ), It is supported in the entire area in the thickness direction.

【００４９】図１１は、第１発明の第７実施形態を示す
ものである。この第７実施形態のアーム用部材（１）の
部材本体（３）は、上記第６実施形態の部材本体（３）
の屈曲部（３ａ）に、次のような塑性変形加工が施され
ているものである。すなわち、部材本体（３）の屈曲部
（３ａ）における周壁部を、プレス等により、部材本体
（３）の軸線方向及び屈曲方向に対して直交する方向の
両側から潰して横断面略楕円形状に塑性変形させたもの
である。こうすることにより、部材本体（３）の屈曲部
（３ａ）における曲げ剛性（曲げこわさ）が向上し、そ
のため部材本体（３）としてヤング率が鉄系材料の約１
／３であるアルミニウムを用いた場合であっても、サス
ペンションアーム用部材として要求される強度を確実に
満たすことができる。FIG. 11 shows a seventh embodiment of the first invention. The member main body (3) of the arm member (1) of the seventh embodiment is the same as the member main body (3) of the sixth embodiment.
Is subjected to the following plastic deformation processing. That is, the peripheral wall portion at the bent portion (3a) of the member main body (3) is crushed by pressing or the like from both sides in the direction orthogonal to the axial direction and the bending direction of the member main body (3) to have a substantially elliptical cross section. It is plastically deformed. By doing so, the bending stiffness (bending stiffness) at the bent portion (3a) of the member main body (3) is improved, so that the member main body (3) has a Young's modulus of about 1 of iron-based material.
Even when aluminum of / 3 is used, the strength required for the suspension arm member can be reliably satisfied.

【００５０】図１２は、第１発明の第８実施形態を示し
ている。この第８実施形態のアーム用部材（１）の部材
本体（３）は、所定長さを有する棒状のアルミニウム押
出形材製の中空角パイプ材からなるものである。この部
材本体（３）の周壁部は、対向状に配置された一対の平
板状の第１及び第２壁部（４）（５）と、該第１及び第
２壁部（４）（５）を幅方向両端部において連結した平
板状の第３及び第４壁部（６）（７）とを備えている。
さらに、前記第３及び第４壁部（６）（７）の外面に
は、補強用リブ部（１７）（１７）が長さ方向に沿って
突設されている。そして、この部材本体（３）は、前記
中空角パイプ材をその長さ方向の中間部において前記第
３壁部（６）を内側に第４壁部（７）を外側にして屈曲
部（３ａ）を中心として長さ方向にく字状に屈曲してい
るものである。FIG. 12 shows an eighth embodiment of the first invention. The member body (3) of the arm member (1) of the eighth embodiment is made of a rod-shaped hollow square pipe made of extruded aluminum having a predetermined length. The peripheral wall of the member main body (3) has a pair of flat first and second wall portions (4) and (5) arranged opposite to each other, and the first and second wall portions (4) and (5). ) Are connected at both ends in the width direction with flat plate-shaped third and fourth wall portions (6) and (7).
Further, reinforcing ribs (17) (17) project from the outer surfaces of the third and fourth walls (6) and (7) along the length direction. The member main body (3) is formed by bending the hollow square pipe member at a middle portion in the longitudinal direction with the third wall portion (6) inside and the fourth wall portion (7) outside. ) Is bent in the shape of a letter in the longitudinal direction with the center at the center.

【００５１】そして、この部材本体（３）の両端部の第
１及び第２壁部（４）（５）には、ブッシュ装着孔
（９）（９）が形成されている。さらに、第３及び第４
壁部（６）（７）の対向面は、このブッシュ装着孔
（９）（９）に圧入されるブッシュにおける部材本体
（３）の幅方向両側の部分に、ブッシュの厚さ方向に沿
って線接触状態に当接するものとなされている。The first and second wall portions (4) and (5) at both ends of the member main body (3) are formed with bush mounting holes (9) and (9). In addition, the third and fourth
The opposing surfaces of the wall portions (6) and (7) are formed along the thickness direction of the bush at the portions on both sides in the width direction of the member body (3) of the bush pressed into the bush mounting holes (9) and (9). It comes into contact with the line contact state.

【００５２】このブッシュ装着孔（９）（９）にブッシ
ュを圧入することによって、ブッシュが部材本体（３）
に装着される。By press-fitting the bush into the bush mounting holes (9) and (9), the bush is moved into the member body (3).
Attached to.

【００５３】このブッシュ装着状態において、ブッシュ
における部材本体（３）の幅方向両側の部分は、第３壁
部（６）と第４壁部（７）との間で、第１及び第２壁部
（４）（５）のブッシュ装着孔（９）（９）と、第３及
び第４壁部（６）（７）の対向面とによって、その厚さ
方向全域において支持されることとなる。In this bush mounted state, portions of the bush on both sides in the width direction of the member body (3) are formed between the third wall portion (6) and the fourth wall portion (7) by the first and second wall portions. The bush mounting holes (9) and (9) of the portions (4) and (5) and the opposing surfaces of the third and fourth wall portions (6) and (7) support the entire region in the thickness direction. .

【００５４】さらに、この部材本体（３）は、第３及び
第４壁部（６）（７）の外面に前記補強用リブ部（１
６）（１６）が突設されているので、この補強用リブ部
（１７）（１７）に同図（ａ）に示すように干渉防止用
の切欠き部（１１）を形成することができ、このため干
渉防止用切欠き部（１１）を簡単に形成することができ
るという利点を有している。Further, the member main body (3) is provided on the outer surfaces of the third and fourth walls (6) and (7) with the reinforcing ribs (1).
6) Since (16) is protruded, a notch (11) for preventing interference can be formed in the reinforcing ribs (17) and (17) as shown in FIG. Therefore, there is an advantage that the interference prevention notch (11) can be easily formed.

【００５５】図１３は、第２発明の実施形態（第９実施
形態）を示している。この第９実施形態のアーム用部材
（２１）の部材本体（２３）は、所定長さを有する横断
面コ字形の棒状のアルミニウム押出形材からなる。この
押出形材は、対向状に配置された一対の側板部（２４）
（２５）と、これら両側板部（２４）（２５）をその幅
方向端部において連結した連結板部（２６）とを有して
いる。そして、この部材本体（２３）は、図示されてい
ないが、前記押出形材をその長さ方向中間部において前
記両側板部（２４）（２５）のうちの一方の側板部（２
４）を内側に他方の側板部（２５）を外側にして屈曲部
を中心として長さ方向にく字状に屈曲しているものであ
る。FIG. 13 shows an embodiment (ninth embodiment) of the second invention. The member main body (23) of the arm member (21) of the ninth embodiment is made of a rod-shaped extruded aluminum member having a predetermined length and a U-shaped cross section. The extruded profile is formed by a pair of side plate portions (24) arranged opposite to each other.
(25), and a connecting plate (26) in which these two side plates (24) and (25) are connected at their widthwise ends. Although not shown, the member main body (23) is configured such that the extruded shape member is formed at one of the side plate portions (24) and (25) at an intermediate portion in the longitudinal direction thereof.
4) with the other side plate (25) on the inside and the other side plate (25) on the outside.

【００５６】そして、部材本体（２３）の両端部の連結
板部（２６）には、ブッシュ装着孔（２７）が形成され
るとともに、両側板部（２４）（２５）の対向面には、
このブッシュ装着孔（２７）における部材本体（２３）
の幅方向両側の部分を構成する凹部（２８）（２８）
が、部材本体（２３）の厚さ方向に沿って形成されてい
る。A bush mounting hole (27) is formed in the connecting plate (26) at both ends of the member main body (23), and opposing surfaces of the two side plates (24) and (25) are formed.
The member body (23) in the bush mounting hole (27)
Recesses (28) and (28) forming portions on both sides in the width direction of
Are formed along the thickness direction of the member main body (23).

【００５７】このブッシュ装着孔（２７）にブッシュを
圧入することによって、ブッシュが部材本体（２３）に
装着される。The bush is mounted on the member body (23) by press-fitting the bush into the bush mounting hole (27).

【００５８】このブッシュ装着状態において、ブッシュ
における部材本体（２３）の幅方向両側の部分は、両側
板部（２４）（２５）の間で、連結板部（２６）のブッ
シュ装着孔（２７）と、両側板部（２４）（２５）の凹
部（２８）（２８）とによって、その厚さ方向全域にお
いて支持されることとなる。In this bush mounting state, the bush on both sides in the width direction of the member main body (23) is provided between the two side plates (24) and (25) between the bush mounting holes (27) of the connecting plate (26). And the concave portions (28) and (28) of the side plate portions (24) and (25), thereby supporting the entire region in the thickness direction.

【００５９】図１４は、第２発明のもう一つの実施形態
（第１０実施形態）を示している。この第１０実施形態
のアーム用部材（２１）の部材本体（２３）は、所定長
さを有する横断面Ｈ字形の棒状のアルミニウム押出形材
からなる。この押出形材は、対向状に配置された一対の
側板部（２４）（２５）と、これら両側板部（２４）
（２５）をその幅方向中間部において連結した連結板部
（２６）とを有している。そして、この部材本体（２
３）は、図示されていないが、前記押出形材をその長さ
方向中間部において前記両側板部（２４）（２５）のう
ちの一方の側板部（２４）を内側に他方の側板部（２
５）を外側にして屈曲部を中心として長さ方向にく字状
に屈曲しているものである。FIG. 14 shows another embodiment (tenth embodiment) of the second invention. The member main body (23) of the arm member (21) according to the tenth embodiment is made of a bar-shaped extruded aluminum material having a predetermined length and an H-shaped cross section. The extruded profile comprises a pair of side plates (24) and (25) arranged opposite to each other and a pair of side plates (24).
(25) and a connecting plate portion (26) which is connected at an intermediate portion in the width direction. Then, this member body (2
3), although not shown, the extruded profile is formed such that one side plate (24) of the two side plates (24) and (25) is located inside and the other side plate ( 2
5) is bent in a V-shape in the length direction around the bent portion with 5) as the outside.

【００６０】そして、部材本体（２３）の両端部の連結
板部（２６）には、ブッシュ装着孔（２７）が形成され
るとともに、両側板部（２４）（２５）の対向面には、
このブッシュ装着孔（２７）における部材本体（２３）
の幅方向両側の部分を構成する凹部（２８）（２８）
が、部材本体（２３）の厚さ方向に沿って形成されてい
る。A bush mounting hole (27) is formed in the connecting plate (26) at both ends of the member body (23), and opposing surfaces of both side plates (24) and (25) are
The member body (23) in the bush mounting hole (27)
Recesses (28) and (28) forming portions on both sides in the width direction of
Are formed along the thickness direction of the member main body (23).

【００６１】このブッシュ装着孔（２７）にブッシュを
装着することによって、ブッシュが部材本体（２３）に
装着される。By mounting a bush in the bush mounting hole (27), the bush is mounted on the member body (23).

【００６２】このブッシュ装着状態において、ブッシュ
における部材本体（２３）の幅方向両側の部分は、両側
板部（２４）（２５）の間で、連結板部（２６）のブッ
シュ装着孔（２７）と、両側板部（２４）（２５）の凹
部（２８）（２８）とによって、その厚さ方向全域にお
いて支持されることとなる。In this bush mounting state, the bush on both sides in the width direction of the member main body (23) is provided between the both side plates (24) and (25) between the bush mounting holes (27) of the connecting plate (26). And the concave portions (28) and (28) of the side plate portions (24) and (25), thereby supporting the entire region in the thickness direction.

【００６３】以上、第１発明及び第２発明の実施形態を
説明したが、この発明はこれら実施形態に限定されるも
のではない。例えば、この発明に係るブッシュ装着部材
は、サスペンションアーム用部材（１）（２１）に限定
されず、エンジンマウント用部材であっても良い。Although the first and second embodiments of the present invention have been described above, the present invention is not limited to these embodiments. For example, the bush mounting member according to the present invention is not limited to the suspension arm members (1) and (21) but may be an engine mount member.

【００６４】[0064]

【発明の効果】上述の次第で、第１発明に係るブッシュ
装着部材は、部材本体が棒状の金属押出形材製中空パイ
プ材からなるものなので、部材本体を能率的にかつコス
ト的に有利に製造することができるし、軽量化を図るこ
とができる。As described above, the bush mounting member according to the first aspect of the present invention has a member main body made of a rod-shaped hollow pipe made of extruded metal material, so that the member main body can be efficiently and cost-effectively. It can be manufactured and can be reduced in weight.

【００６５】また、この部材本体の一部に、ブッシュが
装着されているものなので、上記従来技術で示したよう
にブッシュ装着部を用いてこれを部材本体に溶接により
連結するといった面倒な作業が必要なくなり、このため
製造効率が更に向上するし、溶接部も存在しないので、
高い強度的信頼性を有している。Further, since a bush is mounted on a part of the member main body, a troublesome work such as connecting the bush mounting portion to the member main body by using a bush mounting portion as shown in the above-mentioned prior art is required. Is no longer necessary, which further improves production efficiency and eliminates the need for welds.
Has high strength reliability.

【００６６】さらに、部材本体の周壁部における屈曲方
向側の壁部と屈曲方向反対側の壁部との間で、ブッシュ
が支持されているので、ブッシュに部材本体の屈曲部の
曲率半径の寸法を変化させる方向の荷重が加わった場合
であっても、その荷重における部材本体の屈曲方向の成
分又は屈曲方向反対側の成分により生じる破断を、屈曲
方向側の壁部又は屈曲方向反対側の壁部によって阻止す
ることができる。しかも、ブッシュにおける少なくとも
部材本体の屈曲方向側及び屈曲方向反対側の部分がその
厚さ方向において支持されているから、部材本体の屈曲
方向側あるいは屈曲方向反対側へのブッシュの移動を確
実に阻止することができる。したがって、この発明によ
れば、ブッシュがしっかりと装着されているブッシュ装
着部材を提供することができる。Further, since the bush is supported between the wall on the bending direction side and the wall on the opposite side in the bending direction of the peripheral wall of the member main body, the dimension of the radius of curvature of the bent portion of the member main body is supported by the bush. Even if a load in the direction of changing the bending direction is applied, the break caused by the component in the bending direction or the component on the opposite side of the bending direction of the member main body under the load is caused by the wall portion on the bending direction or the wall on the opposite side of the bending direction. Can be blocked by the part. In addition, since at least portions of the bush on the bending direction side and the bending direction opposite side of the member main body are supported in the thickness direction, the movement of the bush to the bending direction side or the bending direction opposite side of the member main body is reliably prevented. can do. Therefore, according to the present invention, it is possible to provide a bush mounting member on which the bush is securely mounted.

【００６７】また、第２発明に係るブッシュ装着部材
も、上記第１発明と同様の効果を奏する。Further, the bush mounting member according to the second invention has the same effect as the first invention.

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

【図１】第１発明の第１実施形態のサスペンションアー
ム用部材（ブッシュ装着部材）を示す図で、（ａ）は正
面図、（ｂ）は縦断面図である。FIG. 1 is a diagram showing a suspension arm member (a bush mounting member) according to a first embodiment of the first invention, wherein FIG. 1 (a) is a front view and FIG. 1 (b) is a longitudinal sectional view.

【図２】（ａ）は図１中のII（ａ）−II（ａ）線断面
図、（ｂ）はII（ｂ）−II（ｂ）、（ｃ）はII（ｃ）−
II（ｃ）線断面図である。2 (a) is a sectional view taken along the line II (a) -II (a) in FIG. 1, (b) is II (b) -II (b), (c) is II (c)-
FIG. 2 is a sectional view taken along line II (c).

【図３】同アーム用部材の製造工程を示す図で、（ａ）
は部材本体の斜視図、（ｂ）は部材本体を屈曲した後の
全体斜視図、（ｃ）は部材本体にブッシュ装着孔及び干
渉防止用切欠き部を形成した後の全体斜視図である。FIG. 3 is a view showing a manufacturing process of the arm member, and FIG.
FIG. 3 is a perspective view of the member main body, FIG. 4B is an overall perspective view after bending the member main body, and FIG. 4C is a general perspective view after forming a bush mounting hole and a notch for preventing interference in the member main body.

【図４】（ａ）は部材本体のブッシュ装着途中の斜視
図、（ｂ）は部材本体のブッシュ装着後の斜視図であ
る。FIG. 4A is a perspective view of the member main body in the process of mounting the bush, and FIG. 4B is a perspective view of the member main body after the bush is mounted.

【図５】図４中Ｖ−Ｖ線断面図である。FIG. 5 is a sectional view taken along line VV in FIG. 4;

【図６】第１発明の第２実施形態のアーム用部材を示す
図で、（ａ）は部材本体のブッシュ装着途中の斜視図、
（ｂ）は部材本体のブッシュ装着後の端面図、（ｃ）は
（ｂ）中のVI−VI線断面図である。FIGS. 6A and 6B are views showing an arm member according to a second embodiment of the first invention, wherein FIG.
(B) is an end view after the bush attachment of the member main body, (c) is a sectional view taken along line VI-VI in (b).

【図７】第１発明の第３実施形態のアーム用部材を示す
図で、（ａ）は部材本体のブッシュ装着途中の斜視図、
（ｂ）は部材本体のブッシュ装着後の端面図、（ｃ）は
（ｂ）中のVII −VII 線断面図である。FIGS. 7A and 7B are views showing an arm member according to a third embodiment of the first invention, and FIG.
(B) is an end view after the mounting of the bush of the member main body, (c) is a sectional view taken along line VII-VII in (b).

【図８】第１発明の第４実施形態のアーム用部材を示す
図で、（ａ）は部材本体の平面図、（ｂ）は部材本体の
凸条変形後の平面図である。FIGS. 8A and 8B are views showing an arm member according to a fourth embodiment of the first invention, wherein FIG. 8A is a plan view of a member main body, and FIG.

【図９】第１発明の第５実施形態のアーム用部材を示す
図で、（ａ）は部材本体の斜視図、（ｂ）は部材本体の
ブッシュ装着途中の斜視図である。FIGS. 9A and 9B are diagrams showing an arm member according to a fifth embodiment of the first invention, wherein FIG. 9A is a perspective view of a member main body, and FIG.

【図１０】第１発明の第６実施形態のアーム用部材を示
す図で、（ａ）は部材本体の全体斜視図、（ｂ）は部材
本体の拡大正面図、（ｃ）は（ｂ）中のＸ−Ｘ線断面図
である。10A and 10B are diagrams showing an arm member according to a sixth embodiment of the first invention, wherein FIG. 10A is an overall perspective view of a member main body, FIG. 10B is an enlarged front view of the member main body, and FIG. It is XX line sectional drawing in a middle.

【図１１】第１発明の第７実施形態のアーム用部材を示
す図で、（ａ）は部材本体の全体斜視図、（ｂ）は
（ａ）中のXI−XI線断面図である。11A and 11B are diagrams showing an arm member according to a seventh embodiment of the first invention, wherein FIG. 11A is an overall perspective view of a member main body, and FIG. 11B is a cross-sectional view taken along line XI-XI in FIG.

【図１２】第１発明の第８実施形態のアーム用部材を示
す図で、（ａ）は部材本体の全体斜視図、（ｂ）は部材
本体の拡大正面図、（ｃ）は（ｂ）中のXII −XII 線断
面図である。12A and 12B are diagrams showing an arm member according to an eighth embodiment of the first invention, wherein FIG. 12A is an overall perspective view of a member main body, FIG. 12B is an enlarged front view of the member main body, and FIG. FIG. 2 is a sectional view taken along line XII-XII in FIG.

【図１３】第２発明の一つの実施形態（第９実施形態）
のアーム用部材を示す図で、（ａ）は部材本体の斜視
図、（ｂ）は部材本体の正面図である。FIG. 13 shows one embodiment of the second invention (ninth embodiment);
3A is a perspective view of a member main body, and FIG. 3B is a front view of the member main body.

【図１４】第２発明のもう一つの実施形態（第１０実施
形態）のアーム用部材を示す図で、（ａ）は部材本体の
斜視図、（ｂ）は部材本体の正面図である。14A and 14B are diagrams showing an arm member according to another embodiment (tenth embodiment) of the second invention, wherein FIG. 14A is a perspective view of a member main body, and FIG. 14B is a front view of the member main body.

【図１５】従来のアーム用部材の一つの例を示す図で、
（ａ）は正面図、（ｂ）は（ａ）中のXV−XV線断面図で
ある。FIG. 15 is a view showing one example of a conventional arm member.
(A) is a front view, (b) is a sectional view taken along line XV-XV in (a).

【図１６】従来のアーム用部材のもう一つの例を示す図
で、（ａ）は正面図、（ｂ）は（ａ）中のXVI −XVI 線
断面図である。16A and 16B are diagrams showing another example of a conventional arm member, wherein FIG. 16A is a front view, and FIG. 16B is a cross-sectional view taken along line XVI-XVI in FIG.

【符号の説明】[Explanation of symbols]

１…サスペンションアーム用部材（ブッシュ装着部材） ２…ブッシュ ３…部材本体 ４…第１壁部（） ５…第２壁部 ６…第３壁部（屈曲方向側の壁部） ７…第４壁部（屈曲方向反対側の壁部） ８…中空部 ９…ブッシュ装着孔 １０…凹部 ２１…サスペンションアーム用部材（ブッシュ装着部
材） ２４、２５…側板部 ２６…連結板部 ２７…ブッシュ装着孔 ２８…凹部DESCRIPTION OF SYMBOLS 1 ... Suspension arm member (Bushing mounting member) 2 ... Bush 3 ... Member main body 4 ... 1st wall part () 5 ... 2nd wall part 6 ... 3rd wall part (wall part of the bending direction side) 7 ... 4th Wall part (wall part on the side opposite to the bending direction) 8 Hollow part 9 Bush mounting hole 10 Concave part 21 Suspension arm member (Bushing mounting member) 24, 25 Side plate part 26 Connection plate part 27 Bush mounting hole 28 ... recess

───────────────────────────────────────────────────── フロントページの続き (72)発明者 小川 雄一 愛知県小牧市大字北外山字哥津3600番地 東海ゴム工業株式会社内 (72)発明者 榎本 正敏 堺市海山町６丁224番地 昭和アルミニウ ム株式会社内 (72)発明者 栃木 雅晴 堺市海山町６丁224番地 昭和アルミニウ ム株式会社内 (72)発明者 西川 直毅 堺市海山町６丁224番地 昭和アルミニウ ム株式会社内 (72)発明者 岩目地 範行 堺市海山町６丁224番地 昭和アルミニウ ム株式会社内 Ｆターム(参考） 3D001 AA17 AA18 BA01 DA04 DA08 3J033 AA04 AB04 DA02 DA10  ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuichi Ogawa Komaki-shi, Aichi 3600 Gezu, Kita-gaiyama Tokai Rubber Industries Co., Ltd. (72) Inventor Masaharu Tochigi, 224 Kaiyama-cho, Sakai City Showa Aluminum Co., Ltd. (72) Inventor Naoki Nishikawa 6, 224 Kaiyama-cho, Sakai City, Showa Aluminum Co., Ltd. (72) Inventor Noriyuki Iwaki, 224 Kaiyama-cho, Sakai City Showa Aluminum Co., Ltd. F-term (reference) 3D001 AA17 AA18 BA01 DA04 DA08 3J033 AA04 AB04 DA02 DA10

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 棒状の金属押出形材製中空パイプ材から
なるとともに、屈曲部（3a）を中心として長さ方向に略
く字状に屈曲している部材本体（３）の一部に、ブッシ
ュ（２）が装着されているブッシュ装着部材（１）であ
って、 前記部材本体（１）の周壁部における屈曲方向側の壁部
（６）と屈曲方向反対側の壁部（７）との間で、前記ブ
ッシュ（２）における少なくとも部材本体の屈曲方向側
及び屈曲方向反対側の部分がその厚さ方向において支持
されていることを特徴とするブッシュ装着部材。1. A part of a member body (3) made of a rod-shaped hollow pipe made of extruded metal material and bent in a substantially rectangular shape in the length direction around a bent portion (3a), A bush mounting member (1) to which a bush (2) is mounted, wherein a wall (6) on a bending direction side and a wall (7) on a side opposite to the bending direction in a peripheral wall portion of the member main body (1). A bush mounting member, wherein at least portions of the bush (2) on the bending direction side and the bending direction opposite side of the member main body are supported in the thickness direction. 【請求項２】 対向状に配置された一対の側板部（24）
（25）と、これら両側板部を連結する連結板部（26）と
を有する棒状の金属押出形材からなるとともに、前記両
側板部（24）（25）のうち一方の側板部を内側に他方の
側板部を外側にして屈曲部を中心として長さ方向に略く
字状に屈曲している部材本体（23）の一部に、ブッシュ
（２）が装着されているブッシュ装着部材（21）であっ
て、 前記部材本体（23）の両側板部（24）（25）の間で、前
記ブッシュ（２）における少なくとも部材本体の屈曲方
向側及び屈曲方向反対側の部分がその厚さ方向において
支持されていることを特徴とするブッシュ装着部材。2. A pair of side plate portions (24) arranged opposite to each other.
(25) and a rod-shaped extruded metal member having a connecting plate portion (26) for connecting these both side plate portions, and one side plate portion of the both side plate portions (24) and (25) is placed inside. A bush mounting member (21) in which a bush (2) is mounted on a part of a member body (23) bent in a substantially rectangular shape in the length direction around the bent portion with the other side plate portion as the outside. ), Between the side plate portions (24) and (25) of the member body (23), at least portions of the bush (2) on the bending direction side and the bending direction opposite side of the member body are in the thickness direction. A bush mounting member characterized in that it is supported by:
JP10202061A 1998-07-16 1998-07-16 Bush mounting member Pending JP2000035029A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP10202061A JP2000035029A (en) 1998-07-16 1998-07-16 Bush mounting member
DE19983388T DE19983388T1 (en) 1998-07-16 1999-07-16 Bush fastening element
GB0103561A GB2358001B (en) 1998-07-16 1999-07-16 A Bush mounting member
PCT/JP1999/003847 WO2000004296A1 (en) 1998-07-16 1999-07-16 Bush installation member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10202061A JP2000035029A (en) 1998-07-16 1998-07-16 Bush mounting member

Publications (1)

Publication Number Publication Date
JP2000035029A true JP2000035029A (en) 2000-02-02

Family

ID=16451304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10202061A Pending JP2000035029A (en) 1998-07-16 1998-07-16 Bush mounting member

Country Status (4)

Country Link
JP (1) JP2000035029A (en)
DE (1) DE19983388T1 (en)
GB (1) GB2358001B (en)
WO (1) WO2000004296A1 (en)

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JP4569963B2 (en) * 2003-07-03 2010-10-27 アイシン軽金属株式会社 Suspension arm
WO2006106622A1 (en) * 2005-03-30 2006-10-12 Infec Corporation Device and method for elliptically processing metal tube and metal tube product
KR100794131B1 (en) 2006-04-25 2008-01-10 현대모비스 주식회사 Aluminum control arm for suspension in vehicle
JP2010076473A (en) * 2008-09-24 2010-04-08 Toyota Motor Corp I-shaped suspension arm for vehicle
JP2011057102A (en) * 2009-09-10 2011-03-24 Aisin Keikinzoku Co Ltd Vehicular arm member
WO2015093346A1 (en) * 2013-12-19 2015-06-25 株式会社神戸製鋼所 Automobile undercarriage component
JP2015134595A (en) * 2013-12-19 2015-07-27 株式会社神戸製鋼所 Automobile undercarriage component
KR102676716B1 (en) * 2019-07-03 2024-06-19 현대자동차주식회사 Suspension parts for vehicle and method of manufacturing the same

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GB2358001B (en) 2003-03-12
DE19983388T1 (en) 2001-06-13
GB2358001A (en) 2001-07-11
GB0103561D0 (en) 2001-03-28
WO2000004296A1 (en) 2000-01-27

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