EP0968095A1 - Essieu flottant, notamment pour essieu avant ou arriere - Google Patents

Essieu flottant, notamment pour essieu avant ou arriere

Info

Publication number
EP0968095A1
EP0968095A1 EP98919069A EP98919069A EP0968095A1 EP 0968095 A1 EP0968095 A1 EP 0968095A1 EP 98919069 A EP98919069 A EP 98919069A EP 98919069 A EP98919069 A EP 98919069A EP 0968095 A1 EP0968095 A1 EP 0968095A1
Authority
EP
European Patent Office
Prior art keywords
swing arm
parts
hollow
arm
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.)
Withdrawn
Application number
EP98919069A
Other languages
German (de)
English (en)
Inventor
Friedrich Klaas
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.)
Magna IHV Gesellschaft fur Innenhochdruck Verfahren mbH
Original Assignee
Magna IHV Gesellschaft fur Innenhochdruck Verfahren mbH
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 Magna IHV Gesellschaft fur Innenhochdruck Verfahren mbH filed Critical Magna IHV Gesellschaft fur Innenhochdruck Verfahren mbH
Publication of EP0968095A1 publication Critical patent/EP0968095A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B60G2206/124—Constructional features of arms the arm having triangular or Y-shape, e.g. wishbone
    • 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
    • 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
    • B60G2206/82—Joining
    • B60G2206/8201—Joining by welding

Definitions

  • Axle rocker for the movable attachment of wheels to a support element, characterized in that it has at least two hollow arm parts (12, 14), one of which has a connection, via the internal high-pressure forming process (IHV process), possibly with changing cross sections - Has elevation, which is inserted into the end section of the other arm and fastened therein, the elevations in the outer diameter corresponding to the inner cross section of the other arm part, so that the arm part can be plugged onto this.
  • IHV process internal high-pressure forming process
  • axle swing arm according to claim 1 characterized in that the elevations formed by the IHV method are cut under the connection of the other part.
  • axle swing arm according to claim 1 or 2, characterized in that the hollow parts (12, 14) at least partially consist of a cold-formable, preferably work-hardenable, metal or metal alloy or plastic and have a parallel to the outer contours of the hollow parts (12, 14) fiber course .
  • axle swing arm according to any one of the preceding claims, characterized in that the individual parts consist of different materials and / or material thicknesses.
  • axle swing arm according to one of the preceding claims, characterized in that the material at least partially carbon-containing steel such as ST 34, ST 52 and or made of light metal, aluminum, titanium or an alloy thereof or of fiber-reinforced material. 10
  • axle swing arm according to claim 5 characterized in that the Al alloy is a naturally hard alloy or a cold-hardening alloy.
  • axle swing arm according to one of the preceding claims, characterized in that the material is at least partially a fiber-reinforced material.
  • axle swing arm according to one of the preceding claims, characterized in that the hollow molded parts (12, 14) have at least partially molded profiles, such as longitudinal and / or transverse ribs.
  • axle swing arm according to one of the preceding claims, characterized in that the cross sections of the elevations or also of the connecting parts in the connection area are asymmetrical and / or angular - for example. Triangular, polygonal or polygonal or oval or round.
  • axle swing arm according to one of the preceding claims, characterized in that the wall thickness over the entire axle swing arm is substantially constant.
  • axle swing arm according to one of the preceding claims, characterized in that it consists essentially of ST 34 or ST 52 steel with a wall thickness of about 1-5 mm, preferably between about 1, 5 and 2.5 mm.
  • Axle swing arm according to one of the preceding claims, characterized in that the individual parts are attached to one another by welding, gluing, riveting, soldering or the like.
  • axle swing arm according to one of the preceding claims, characterized in that it is a front axle swing arm or a rear axle swing arm for a motor vehicle axle or a landing gear, such as an aircraft landing gear.
  • Axle swingarm especially for a front or rear axle
  • the invention relates to an axle swing arm for the movable attachment of wheels to a support element, in particular for the independent wheel suspension in passenger cars, which attaches the wheels to the axle body
  • Axle swingarms are generally known. They were usually manufactured in a hollow shell construction, which was welded together from at least two sheets. This hollow shell construction required a comparatively high material weight due to the weld seams - it was also not possible to produce cross sections that could withstand the stresses optimally high manufacturing effort This led to undesirably high weights of these parts - especially if an increased load capacity was desired. After all, the weld seams were often the cause of rejects. The required loads required a certain installation space for this
  • axle rocker arm which has at least two hollow arm parts, which may be hollow using the internal high pressure forming process (IHV process), with changing cross sections, at least one of which has at least one connection elevation which is inserted into the end section of the other arm and is then attached, the elevations in the outer diameter corresponding to the inner cross section of the other arm part, so that the connecting parts can be plugged onto this
  • IHV process internal high pressure forming process
  • the arm parts at least partially consist of a cold-formable, preferably cold-workable, metal or metal alloy or plastic and a fiber course parallel to the outer contours of the arm parts
  • the hollow molded parts can therefore consist of a single material, for example steel or a light metal alloy, but depending on the use, it is also possible to form laminate material, including plastic-coated or coated pipes.
  • steel such as carbon-containing steel such as ST 34 or ST 52, light metal, aluminum, magnesium, titanium or an / alloy thereof or of fiber-reinforced material.
  • a naturally hard alloy or a cold-hardening alloy can be used as the AI alloy.
  • the hollow arm parts can have at least partially molded profiles, such as longitudinal and / or transverse ribs. This may result in further material savings.
  • the cross sections of the elevations or also of the connecting parts in the connection area are asymmetrical and / or angular - for example three, four or polygonal or oval - but they can also be t and.
  • the wall thickness can be substantially constant over the entire respective swing arm part.
  • a connecting profile to be formed on at least one end of the hollow axle rocker in order to simplify the fastening of the axle rocker, for example, to the side member of a motor vehicle. Thanks to the IHV process, particularly light parts with small dimensions can be produced - so less space is required compared to hollow shells.
  • axle swing arm according to the invention essentially consists of ST 34 or ST 52 steel with a wall thickness of approximately 1-5 mm, preferably between approximately 1.5 and 2.5 mm.
  • axle rocker The nested parts of the axle rocker can be attached to each other by welding, gluing, riveting, soldering and other connection techniques familiar to a person skilled in the art.
  • the elevations on the individual parts can be cut open, for example, so that an open part is created - but it is also possible. ,. to use the elevation uncut and only to clip on the arm part - this leads to a little increased weight, but to a further strengthening of the connection area and saves one work step (cutting open).
  • the specialist can select appropriate measures depending on the area of application.
  • the axle swing arm can be, for example, a front axle swing arm or a rear axle swing arm for a motor vehicle axle or other undercarriages, such as an aircraft undercarriage.
  • strain hardening which creates particularly favorable strength properties of the element.
  • cold-forming processes are energetically favorable.
  • the high pressure process as such is known.
  • the mentioned internal high-pressure process or IHV process is understood here to mean the process that has been described, for example, in Industriean accorder No. 20 of March 9, 1984, or also in "Metallumformtechnik", Edition 1 D / 91, page 15 ff: A.
  • Ebbinghaus Precision workpieces in lightweight construction, produced by internal high pressure forming "or also material and operation 123 to 243: A.
  • Ebbinghaus " Economic construction with internal high pressure formed precision workpieces "or also” Material and operation 122, (1991), 11, (1989), pages 933 to 938. In the following, reference is made in full to avoid repetitions of their disclosure.
  • This method has previously been used for the production of various shaped hollow parts, such as or for the production of built camshafts for fastening cams to a tube, for the production of hollow camshafts, for the production of space control axles but also for the production of motor vehicle frame parts.
  • This internal high-pressure process can be used to produce completely new hollow metal components, in which the grain of the walls runs essentially parallel to the outer contour, without any buckling or other weakening.
  • the hollow components can consequently be formed in a lighter form than before due to the high wall strength due to the favorable fiber orientation parallel to the outer contours and the strain hardening, and thereby enable considerable weight savings.
  • laminated materials for the mold, provided that they can be formed together. Laminates may By J h suitable choice of material lighter than solid materials and do not have to act to dampen vibration or also to the surfaces corresponding to the environmental stresses the advantage (corrosion by acids, etc.) have other layers, 5
  • an essentially constant wall thickness can be achieved in the molded part - even when connecting elements are molded on, so that weakening of the wall thickness due to the formation of elevations at least partially can be compensated so that this takes place without weakening.
  • axle swing arm according to the invention can, of course, be used with correspondingly adapted dimensions and, if appropriate, also materials in vehicles of all types in order to ensure an elastic and vibration-damping independent wheel suspension.
  • axle rocker material it is possible for the axle rocker material to be multi-layered, whereby the layers can be made of the same or different material, which can be metallic or non-metallic, plastic or ceramic.
  • the layers can be made of the same or different material, which can be metallic or non-metallic, plastic or ceramic.
  • a metal part can be protected against corrosion or can also be manufactured with "material-specific" vibration damping.
  • the outer molded part may have a plurality of layers of the same or different materials lying on top of one another and running parallel to one another and whose fiber course is parallel to one another.
  • the entire component can consist essentially of the same or different light metals.
  • the light metal can be aluminum or an alloy of the same, which can also be associated with a favorable corrosion resistance. 6
  • An advantageous method for the production of hollow molded parts is that a hollow outer mold is produced in a manner known per se by drawing, casting, extruding, hydroforming, which is then finished by the IHV method known per se.
  • Multi-layer metal pipes can also be selected as starting parts, depending on the requirements of the material.
  • multilayer designs have the advantage that the surfaces of the hollow part can be subjected to different loads, and also the advantage of poorly conducting vibrations of all types, which decisively improves the vibration behavior of the hollow part in use. Due to the fact that an internal high pressure forming process is used, it is possible to collect elevations and depressions, openings and the like in one molding process. Like. To produce on the outer hollow part. This makes it possible to reduce the amount of after-treatment.
  • a wide variety of hollow profiles namely rectangular profiles, angle profiles, pipes, etc., can be used as arm parts, the cross-sectional shape changing over the course of the part.
  • Figure 1 is a schematic representation of an embodiment of a rocker according to the invention in plan view.
  • FIG. 2 shows a partial area of the axle rocker according to FIG. 1 in longitudinal section; 3 shows a partial area of the axle swing arm according to the invention in cross section along the line AA of FIG. 2
  • Fig. 4 shows a cross section through a further embodiment of an axle rocker along the line A-A of Fig. 2, and
  • FIG. 5 shows a longitudinal section through a further embodiment of an axle swing arm according to the invention.
  • FIGS. 1 and 2 and 3 which each show the same component in a perspective view and parts of it once in longitudinal section and once in cross section, a preferred embodiment of the axle rocker according to the invention consists of tubular steel.
  • the steel pipe was three-dimensionally formed here using the IHV process.
  • any elongated hollow body that does not have to be round in cross section is understood as a tube.
  • the end of the arm part 14 is attached and fastened to the arm part 12, which has been formed with an elevation.
  • the elevation which is produced as a closed protuberance in the IHV method, was cut open before the arm part 14 was attached and the cut off area was removed.
  • the arms of the axle swing arm - targeted molded-in groove depressions can be formed in certain areas of the tube - in order to reinforce the element later at certain points so that the loads can be better withstood there .
  • the hollow profiles of the component can have different diameters along their longitudinal extent, as well as different cross sections. 8th
  • FIG. 4 shows another application form of an element according to the invention. It is a rocker arm in which an angular cross section is formed to improve the securing of the connecting seam between the parts against rotation at the end region of the arm and in the elevation.
  • FIG. 5 a rocker arm is shown in which the elevation produced by the IHV method was not cut off and the arm part 14 was plugged directly onto the closed elevation and fastened to it, without the step of cutting off the end of the elevation being connected upstream had to become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Pyrrole Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

L'invention concerne un essieu flottant qui permet de monter mobiles des roues sur un élément support. Ledit essieu flottant est caractérisé par le fait qu'il comprend au moins deux éléments bras (12, 14) creux ou présentant des coupes transversales variables, formés par un procédé de formage par pression interne (procédé IHV). Un des éléments bras présente une protubérance de fixation qui s'introduit et se fixe dans l'extrémité terminale de l'autre bras. Le diamètre externe de la protubérance correspond à la section interne de l'autre élément bras, de façon que l'on puisse monter l'élément bras sur ladite protubérance.
EP98919069A 1997-03-17 1998-03-17 Essieu flottant, notamment pour essieu avant ou arriere Withdrawn EP0968095A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29704863U DE29704863U1 (de) 1997-03-17 1997-03-17 Achsschwinge
DE29704863U 1997-03-17
PCT/DE1998/000783 WO1998041412A1 (fr) 1997-03-17 1998-03-17 Essieu flottant, notamment pour essieu avant ou arriere

Publications (1)

Publication Number Publication Date
EP0968095A1 true EP0968095A1 (fr) 2000-01-05

Family

ID=8037636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98919069A Withdrawn EP0968095A1 (fr) 1997-03-17 1998-03-17 Essieu flottant, notamment pour essieu avant ou arriere

Country Status (6)

Country Link
US (1) US6471226B1 (fr)
EP (1) EP0968095A1 (fr)
BR (1) BR9811653A (fr)
CA (1) CA2285464A1 (fr)
DE (1) DE29704863U1 (fr)
WO (1) WO1998041412A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ511116A (en) * 1998-11-10 2003-08-29 Janssen Pharmaceutica Nv HIV replication inhibiting pyrimidines
DE19961678A1 (de) * 1999-12-21 2001-06-28 Magna Ihv Ges Fuer Innenhochdr Achsschwinge für ein Kraftfahrzeug
DE10007192C2 (de) * 2000-02-17 2002-10-24 Benteler Werke Ag Lenker für Kraftfahrzeuge
US6851691B2 (en) * 2000-08-22 2005-02-08 Bombardier Recreational Products Inc. Suspension system for an all terrain vehicle
US6869091B1 (en) 2000-11-07 2005-03-22 Meritor Suspension Systems Company Method for enhancing the physical characteristics of a suspension component
DE10153799A1 (de) * 2001-11-05 2003-05-15 Zf Lemfoerder Metallwaren Ag Kraftverbindungsstrebe
DE10155490A1 (de) 2001-11-13 2003-05-22 Zf Lemfoerder Metallwaren Ag Kraftverbindungsstrebe
DE10326858A1 (de) * 2003-06-14 2005-01-13 Daimlerchrysler Ag Wattstrebe
JP2007527816A (ja) 2004-03-09 2007-10-04 ツェットエフ フリードリヒスハーフェン アクチエンゲゼルシャフト 自動車のホイールサスペンション用のラジアスアーム
US7497455B2 (en) * 2005-01-28 2009-03-03 Michael Kamalian Carbon fiber motorcycle frame
US7793959B2 (en) * 2005-08-24 2010-09-14 Seven Cycles, Inc. Customizable carbon frames for bicycle or other vehicles
DE102015006579A1 (de) * 2015-05-21 2016-11-24 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Rohrrahmenstruktur für einen Kraftfahrzeugsitz
DE102016209689B4 (de) * 2016-06-02 2024-05-29 Ford Global Technologies, Llc Zweiteilige Radaufhängungseinheit

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3350905A (en) * 1963-12-21 1967-11-07 Agency Ind Science Techn Liquid pressure bulge forming apparatus
CH659436A5 (de) * 1982-10-19 1987-01-30 Fischer Ag Georg Gegossener lenker fuer kraftfahrzeug-radaufhaengungen.
JPS63263115A (ja) * 1987-04-21 1988-10-31 Mazda Motor Corp 自動車のサスペンシヨンア−ム構造
CA2084940C (fr) * 1991-12-10 1998-12-08 John J. Vrana Bras oscillant transversal superieur creux renforce pour suspension de vehicule
DE4228238C2 (de) 1992-08-25 1996-08-14 Ges Innenhochdruckverfahren Fachwerk mit Hohlteilen, Verfahren zu seiner Herstellung und seine Verwendung
US5338057A (en) * 1992-11-12 1994-08-16 Mascotech, Inc. Upper control arm for vehicle suspension
DE4322632A1 (de) 1993-07-07 1995-01-12 Vaw Ver Aluminium Werke Ag Verfahren zur Herstellung von auf Knicklast und Torsionskräfte beanspruchte Verbindungsstreben
US5769442A (en) * 1994-01-31 1998-06-23 Teksource, Hlc Structural shell frames and method of making same
FR2720713B3 (fr) * 1994-06-01 1996-08-09 Time Sport Int Cadre de bicyclette en matériau composite, moules pour la réalisation d'un tel cadre, et procédé de moulage du cadre.
JP3159288B2 (ja) * 1994-07-20 2001-04-23 本田技研工業株式会社 サスペンションアームの製造方法
US5613794A (en) * 1994-08-16 1997-03-25 Hong Kong (Link) Bicycles Ltd. Bi-material tubing and method of making same
DE4442150C2 (de) * 1994-11-26 2001-01-25 Benteler Werke Ag Rohrförmiger Träger als Bestandteil eines Fahrwerks für ein Kraftfahrzeug
DE19506160B4 (de) 1995-02-22 2006-05-11 Adam Opel Ag Rahmenkonstruktion für Kraftfahrzeuge
US5544907A (en) * 1995-03-31 1996-08-13 Industrial Technology Research Institute Composite bicycle frame with y shaped tubular configuration
US5641176A (en) * 1995-03-31 1997-06-24 Mascotech Tubular Products, Inc. Process of hydroforming tubular suspension and frame components for vehicles
DE29506170U1 (de) * 1995-04-14 1995-08-17 Ges. f. Innenhochdruck-Verfahren mbH & Co KG, 73431 Aalen Querlenkeranordnung
JPH08295111A (ja) * 1995-04-28 1996-11-12 Toyota Motor Corp サスペンションアーム
WO1997000595A1 (fr) * 1995-06-16 1997-01-03 Dana Corporation Preparation de composants de chassis de vehicule a une liaison moleculaire selon des techniques de soudage par impulsions magnetiques
DE19530055B4 (de) * 1995-08-16 2004-08-26 Schuler Hydroforming Gmbh & Co. Kg Verfahren zum Herstellen von doppelwandigen Durchbrechungen in Bauteilen nach dem Innenhochdruck-Umformverfahren
US5758896A (en) * 1995-10-27 1998-06-02 Chrysler Corporation Rubber torsion front suspension spring for lightweight motor vehicle
US5921568A (en) * 1995-10-27 1999-07-13 Chrysler Corporation Front suspension system with substantially horizontal shock absorber
DE29720207U1 (de) * 1997-11-14 1998-01-02 Benteler Ag, 33104 Paderborn Verbundlenkerachse für Kraftfahrzeuge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9841412A1 *

Also Published As

Publication number Publication date
DE29704863U1 (de) 1997-05-22
BR9811653A (pt) 2000-09-19
US6471226B1 (en) 2002-10-29
WO1998041412A1 (fr) 1998-09-24
CA2285464A1 (fr) 1998-09-24

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