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WO2004076209A1 - Structure de suspension - Google Patents

Structure de suspension Download PDF

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Publication number
WO2004076209A1
WO2004076209A1 PCT/EP2004/001517 EP2004001517W WO2004076209A1 WO 2004076209 A1 WO2004076209 A1 WO 2004076209A1 EP 2004001517 W EP2004001517 W EP 2004001517W WO 2004076209 A1 WO2004076209 A1 WO 2004076209A1
Authority
WO
WIPO (PCT)
Prior art keywords
lower cover
cover
upper cover
iii
construction according
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.)
Ceased
Application number
PCT/EP2004/001517
Other languages
German (de)
English (en)
Inventor
August-Wilhelm Gelmke
Tom Gehring
Manfred Schorling
Kay Döppner
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DE112004000093T priority Critical patent/DE112004000093A5/de
Publication of WO2004076209A1 publication Critical patent/WO2004076209A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • B60G13/001—Arrangements for attachment of dampers
    • B60G13/003—Arrangements for attachment of dampers characterised by the mounting on the vehicle body or chassis of the damper unit
    • 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
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/58—Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
    • 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
    • B60G2202/14—Plastic spring, e.g. rubber
    • 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
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/125—Mounting of rubber type springs
    • 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
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/128—Damper mount on vehicle body or chassis

Definitions

  • the invention relates to spring constructions containing a hollow, preferably cylindrical, damping element (i), preferably based on rubber or particularly preferably cellular polyisocyanate polyaddition products, preferably based on cellular polyurethane elastomers, which may optionally contain polyurea structures, particularly preferably based on cellular Polyurethane elastomers preferably with a density according to DIN 53 420 of 200 to 1100, preferably 300 to 800 kg / m 3 , preferably with a tensile strength according to DIN 53571 of> 2, preferably 2 to 8 N / mm 2 , an elongation according to DIN 53571 of> 300, preferably 300 to 700% and a tear strength according to DIN 53515 of> 8, preferably 8 to 25 N / mm, at least one circular bearing (ii) containing at least one preferably cylindrical, hollow, elastic bearing element (iii), preferably based on Rubber or particularly preferably cellular polyisocyanate polyadducts, especially materials that
  • the invention also relates to methods for assembling spring structures containing at least one circular bearing (ii) containing at least one cylindrical, hollow, elastic bearing element (iii), which comprises an insert (iv), and at least one lower cover (v) and at least least an upper cover (vi) in an automobile body. Furthermore, the invention relates to automobiles, for example passenger cars, lorries, buses, preferably automobile undercarriages containing the spring construction according to the invention.
  • Suspension elements made from polyurethane elastomers are used in automobiles, for example, within the chassis and are generally known. They are used in particular in motor vehicles as vibration-damping spring elements.
  • the spring elements take on an end stop function and influence the force-displacement identification of the wheel by forming or reinforcing a progressive characteristic of the vehicle suspension.
  • the pitching effects of the vehicle can be reduced and the roll support is increased.
  • the starting stiffness is optimized in particular by the geometric design, this has a significant influence on the suspension comfort of the vehicle.
  • the targeted design of the geometry results in almost constant component properties over the "service life Function increases driving comfort and ensures maximum driving safety.
  • damper bearings also known as round bearings
  • the assembly of this damper bearing represents a critical step for the subsequent functionality of the entire spring construction.
  • the functionality of the spring construction is crucial from the structure, ie the fixing of the round bearing and the arrangement of the components to each other.
  • damage to the bearing element (iii) in the new spring construction should be reduced as much as possible both during assembly and during use.
  • the lower cover (v) has at least one lateral extension (vii) and the upper cover (vi) has at least one lateral extension (viii) and an attachment, preferably riveting, gluing and / or Screw connection, particularly preferably screw connection, the lower cover (v) with the upper cover (vi) over the extensions (vii) and (viii).
  • the bearing element (iii) of the circular bearing can be fixed quickly and uniformly with the fastening parts (lower cover (v) and upper cover (vi)) which fix the circular bearing to the body.
  • the bearing element By simply mounting the circular bearing between the lower and upper cover, the bearing element can be fixed between these covers under a pressure that is uniform over the entire circumference. Damage both during assembly and in operation, for example due to the occurrence of voltages, is significantly reduced.
  • the assembly of the spring structure with the assembly of the Spring construction can be combined on the body of an automobile, which simplifies the entire assembly process. A deformation of the edge of the housing in which the circular bearing is positioned, and thus structural changes that can lead to stress cracks and the complete failure of the circular bearing and possibly to breakage of the damper bearing housing, are avoided according to the invention.
  • Another object was to provide an improved method for assembling spring structures containing at least one circular bearing (ii) containing at least one cylindrical, hollow, elastic bearing element (iii), which comprises an insert (iv), and at least one lower cover (v) and Developing at least one top cover (vi) in an automobile body that is both simple and results in spring structures that have the advantages outlined above.
  • FIG. 1 shows a spring construction in which the additional spring, ie the damping element (i) is positioned from below in the lower cover and by the bearing element (iii) through an edge, also called separating element (vii), of the lower cover (v) is separated.
  • This edge (xxx) supports a stable fit of both the damping element (i) and the bearing element (iii).
  • Figure 2 shows the spring construction shown in Figure 1 in cross section.
  • Figure 3 discloses a spring construction in which the damping element (i) is inserted from above into the lower cover (v) and through an edge (xxxv) of the damping element (i ) on a corresponding Paragraph (xxxvi) of the lower cover is positioned, is fixed in the lower cover.
  • Figure 4 shows the spring construction of Figure 3 in cross section.
  • Suitable extensions are, for example, corresponding edges or protuberances on the outer surface of the covers, the extension (s) preferably being positioned on the upper edge of the lower cover (v) and the extension (s) preferably on the lower edge of the cover top cover (vi).
  • the covers (v) and (vi) are preferably cylindrical shaped bodies which each have the extensions (vii) and (viii) according to the invention on the outer surface.
  • the extensions (vii) and (viii) are in the spring construction, i.e. in the assembled state, in direct contact with one another, particularly preferably directly above one another, in particular congruently one above the other.
  • the thickness of the extensions i.e. the dimension in the axial direction
  • the extensions (vii) and (viii) are horizontal or at an angle to the axial orientation, preferably horizontal, i.e. in particular aligned perpendicular to the axial alignment of the spring construction.
  • the axial alignment is defined by the direction of the cavity of the damping element (i), in particular the alignment of a piston rod.
  • the extensions (vii) and (viii) can each be an extension that runs around the entire circumference of the respective cover or limited extensions as shown in FIGS. 1 to 4.
  • covers are disclosed, each of which has two extensions.
  • the covers (v) and (vi) can each have at least one, preferably 2 to 8, particularly preferably 2 to 4 extensions.
  • the lower cover can be attached to the upper cover, for example, in such a way that the extensions (vii) and (viii) are glued to one another, for example depending on the material selected for the covers (v) and (vi) with adhesives used for them Materials are common and known.
  • the lower cover (v) is preferably fastened to the upper cover (vi) by rivets or screws which are guided through bores (ix) in the extensions (v) and (vi).
  • bores (ix) which can be used both for mounting the lower cover with the top cover and for mounting the Spring construction with the body, for example by riveting or screwing through these corresponding holes (ix).
  • the bores (ix) of the upper cover (vi) are arranged in an axial extension of the bores (ix) of the lower cover (v), ie the bores are arranged one above the other.
  • the lower cover is preferably connected to the upper cover by passing a screw through the bores (ix) and screwing it either with a thread in the bore or in the body or with a corresponding nut and thus fixing it.
  • a screw through the bores (ix) and screwing it either with a thread in the bore or in the body or with a corresponding nut and thus fixing it.
  • the bearing element (iii) is fixed under pressure by riveting or preferably screwing the lower cover (v) to the upper cover (vi) between the lower cover (v) and the upper cover (vi), i.e. under preload, especially in a preload that is 5 to 30% of the round bearing height in the axial direction.
  • the insert (iv) is preferably only attached to the lower or upper cover via the bearing element (iii) and is accordingly preferably elastic in. the covers stored.
  • the piston rod of the shock absorber can preferably be screwed to the insert (iv), which preferably leads to the fact that occurring forces of the shock absorber go into the body in a damped manner via the bearing element.
  • the bearing element (iii) is preferred, but not the insert (iv) by fastening the lower cover (v) to the upper cover (vi) in contact with the bearing element (iii) and the lower cover (v) and the top cover (vi) - fixed.
  • the spring construction can contain a piston rod of a shock absorber.
  • the piston rod is preferably positioned in the cavities of the damping element (i), the lower cover (v) and the insert (iv) and particularly preferably attached to the insert (iv).
  • the common cavity in which the piston rod comes to rest can be seen clearly in FIGS. 2 and 4.
  • the lower cover (v) thus preferably has a cavity, and particularly preferably the cavities of the insert (iv), the lower cover (v) and the damping element form mentes (i) a continuous cavity, preferably in the axial direction, a piston rod preferably being positioned in this cavity and being fastened to the insert (iv).
  • a separating element (vii) is preferably present between the damping element (i) and the bearing element (iii). This separating element serves both to better seat the damping element in the lower cover and to decouple the two elastic elements (i) and (iii).
  • the separating element (vii) can either be part of the lower cover (v) or can be inserted as an external part in the lower cover (v).
  • the separating element is preferably part of the lower cover (v), for example an edge (xxx).
  • the lower cover (v) can have an edge (xxv) which preferably encloses part of the damping element (i) with a precise fit and thus the damping element ( i) fixed in the lower cover (v). It is therefore preferred that the damping element (i) is at least partially surrounded by an edge (xxv) of the lower cover (v).
  • the lower cover (v) and the upper cover (vi), which can be closed or like the lower cover (v) with a central bore, can be based on generally known, preferably hard materials, for example metals or hard plastics, e.g. thermoplastic polyurethane, polyamide, polyethylene, polypropylene, polystyrene or preferably polyoxymethylene.
  • the outer diameter of the lower and upper cover is preferably between 30 mm and 200 mm.
  • the total height of the lower cover (v) and the upper cover (vi) in the assembled state is preferably between 70 mm and 200 mm.
  • the insert (iv) can be based on generally known, preferably hard materials, for example metals or hard plastics, e.g. thermoplastic polyurethane, polyamide, polyethylene, polypropylene, polystyrene or preferably polyoxymethylene, particularly preferably metals, in particular steel or aluminum.
  • the outer diameter of the insert (iv) is preferably between 30 mm and 90 mm, particularly preferably between 15 mm and 60 mm.
  • the damping element (i) preferably has at least one circumferential constriction (x) on the outer surface.
  • the diameter of the damping element (i) is preferably between 30 mm and 80 mm.
  • the height of the damping element (i) is preferably between 15 mm and 100 mm, particularly preferably between 15 mm and 60 mm.
  • the damping elements (i) and the bearing elements (iii) are preferably based on elastomers, for example rubber and / or on the basis of polyisocyanate polyaddition products, for example polyurethanes and / or polyureas, for example polyurethane elastomers, which may optionally contain urea structures.
  • the elastomers are preferably microcellular elastomers based on polyisocyanate polyadducts, preferably with cells with a diameter of 0.01 mm to 0.5 mm, particularly preferably 0.01 to
  • the elastomers particularly preferably have the physical properties shown at the beginning.
  • Elastomers based on polyisocyanate polyaddition products and their preparation are generally known and can be described in many different ways, for example in EP-A 62 835, EP-A 36 994, EP-A 250 969, DE-A 195 48 770 and DE-A 195 48 771st
  • the elastomers based on cellular polyisocyanate polyaddition products are usually produced in a form in which the reactive starting components are reacted with one another.
  • generally customary shapes are considered as shapes, for example metal shapes which, because of their shape, ensure the three-dimensional shape of the spring element according to the invention.
  • the polyisocyanate polyaddition products can be prepared by generally known processes, for example by using the following starting materials in a one- or two-stage process:
  • auxiliaries and / or additives for example polysiloxanes and / or fatty acid sulfonates.
  • the surface temperature of the mold inner wall is usually 40 to 95 ° C, preferably 50 to 90 ° C.
  • the production of the molded parts is preferably carried out at an NCO / OH ratio of 0.85 to 1.20, the heated starting components being mixed and placed in a heated, preferably tight-closing mold in an amount corresponding to the desired molded part density.
  • the molded parts are hardened after 5 to 60 minutes and can therefore be removed from the mold.
  • the amount of the reaction mixture introduced into the mold is usually measured such that the moldings obtained have the density already shown.
  • the starting components are usually introduced into the mold at a temperature of 15 to 120 ° C., preferably 30 to 110 ° C.
  • the degrees of compaction for the production of the shaped bodies are between 1.1 and 8, preferably between 2 and 6.
  • the outer diameter of the bearing element (iii) is preferably between 60 mm and 120 mm.
  • the inner diameter, i.e. the diameter of the cavity of the bearing element (iii) is preferably between 10 mm and 80 mm.
  • the insert (iv) can preferably be clipped into the bearing element (iii), for example into a notch which is present on the inner surface of the bearing element (iii).
  • the diameter of the cavities in (iv), (v) and (i) and optionally (vii) are preferably between 10 mm and 80 mm.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Springs (AREA)

Abstract

La présente invention concerne une structure de suspension comprenant un élément d'amortissement creux (i), au moins un support arrondi (ii) comprenant au moins un élément de support élastique creux (iii) qui comprend un élément d'insertion (iv), ainsi qu'au moins un couvercle inférieur (v) et qu'au moins un couvercle supérieur (vi) entre lesquels est disposé le support arrondi (ii). L'invention se caractérise en ce que le couvercle inférieur (v) dispose d'au moins un prolongement latéral (vii), et le couvercle supérieur (vi) dispose d'au moins un prolongement latéral (viii), et la fixation du couvercle inférieur (v) au couvercle supérieur (vi) s'effectue au moyen des prolongements (vii) et (viii).
PCT/EP2004/001517 2003-02-28 2004-02-18 Structure de suspension Ceased WO2004076209A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112004000093T DE112004000093A5 (de) 2003-02-28 2004-02-18 Federkonstruktion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10309202.1 2003-02-28
DE2003109202 DE10309202A1 (de) 2003-02-28 2003-02-28 Federkonstruktion

Publications (1)

Publication Number Publication Date
WO2004076209A1 true WO2004076209A1 (fr) 2004-09-10

Family

ID=32842117

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/001517 Ceased WO2004076209A1 (fr) 2003-02-28 2004-02-18 Structure de suspension

Country Status (2)

Country Link
DE (2) DE10309202A1 (fr)
WO (1) WO2004076209A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018091345A1 (fr) * 2016-11-17 2018-05-24 Vibracoustic Gmbh Palier d'amortisseur et procédé de fabrication d'un palier d'amortisseur
US11691473B1 (en) * 2021-02-23 2023-07-04 Metal-tech Cage, LLC Suspension assembly for vehicle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011120260A1 (de) * 2011-12-02 2013-06-06 Audi Ag Lagerbuchse für eine Elastomerfeder
DE102018102745B4 (de) 2018-02-07 2020-07-09 Vibracoustic Gmbh Lagerungssystem zur elastischen Lagerung eines Federbeins oder eines Schwingungsdämpfers sowie ein Federbein oder ein Schwingungsdämpfer
DE102023206377A1 (de) * 2023-07-05 2025-01-09 Zf Friedrichshafen Ag Verfahren zur Herstellung von einem Grundkörper für eine Stützlagerbaugruppe für einen Stoßdämpfer von einem Fahrzeug, Grundkörper sowie Stoßdämpfer mit dem Grundkörper

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4648623A (en) * 1986-02-28 1987-03-10 General Motors Corporation Vehicle suspension strut with lower rotary bearing cup assembly for a dirigible road wheel
US4721325A (en) * 1986-11-19 1988-01-26 General Motors Corporation Suspension strut with quick take-apart upper mount
EP0558115A1 (fr) * 1992-02-24 1993-09-01 General Motors Corporation Ensemble de montage supérieure pour un amortisseur de suspension
GB2289109A (en) * 1994-04-29 1995-11-08 Jaguar Cars Spring/damper unit mounting arrangement
DE19748634A1 (de) * 1996-11-08 1998-05-28 Audi Ag Vorrichtung zum Abstützen einer Schraubendruckfeder
US5775720A (en) * 1996-10-03 1998-07-07 Ford Global Technologies, Inc. Shock absorbing apparatus
DE19719301A1 (de) * 1997-05-07 1998-11-12 Opel Adam Ag Aufbauseitige Lagerung eines Stoßdämpfers
FR2811615A1 (fr) * 2000-07-17 2002-01-18 Peugeot Citroen Automobiles Sa Dispositif de limitation de course pour amortisseur de vehicule automobile, et procede de fabrication d'un tel dispositif

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4648623A (en) * 1986-02-28 1987-03-10 General Motors Corporation Vehicle suspension strut with lower rotary bearing cup assembly for a dirigible road wheel
US4721325A (en) * 1986-11-19 1988-01-26 General Motors Corporation Suspension strut with quick take-apart upper mount
EP0558115A1 (fr) * 1992-02-24 1993-09-01 General Motors Corporation Ensemble de montage supérieure pour un amortisseur de suspension
GB2289109A (en) * 1994-04-29 1995-11-08 Jaguar Cars Spring/damper unit mounting arrangement
US5775720A (en) * 1996-10-03 1998-07-07 Ford Global Technologies, Inc. Shock absorbing apparatus
DE19748634A1 (de) * 1996-11-08 1998-05-28 Audi Ag Vorrichtung zum Abstützen einer Schraubendruckfeder
DE19719301A1 (de) * 1997-05-07 1998-11-12 Opel Adam Ag Aufbauseitige Lagerung eines Stoßdämpfers
FR2811615A1 (fr) * 2000-07-17 2002-01-18 Peugeot Citroen Automobiles Sa Dispositif de limitation de course pour amortisseur de vehicule automobile, et procede de fabrication d'un tel dispositif

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018091345A1 (fr) * 2016-11-17 2018-05-24 Vibracoustic Gmbh Palier d'amortisseur et procédé de fabrication d'un palier d'amortisseur
CN109952214A (zh) * 2016-11-17 2019-06-28 威巴克公司 阻尼支承和阻尼支承的制造方法
US11691473B1 (en) * 2021-02-23 2023-07-04 Metal-tech Cage, LLC Suspension assembly for vehicle

Also Published As

Publication number Publication date
DE112004000093A5 (de) 2008-02-28
DE10309202A1 (de) 2004-09-09

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