EP1395762A1 - Systeme de ressort pneumatique - Google Patents

Systeme de ressort pneumatique

Info

Publication number
EP1395762A1
EP1395762A1 EP02745108A EP02745108A EP1395762A1 EP 1395762 A1 EP1395762 A1 EP 1395762A1 EP 02745108 A EP02745108 A EP 02745108A EP 02745108 A EP02745108 A EP 02745108A EP 1395762 A1 EP1395762 A1 EP 1395762A1
Authority
EP
European Patent Office
Prior art keywords
cover
air
bellows
loop
air spring
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Withdrawn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
EP02745108A
Other languages
German (de)
English (en)
Inventor
Cord LÜHMANN
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.)
Carl Freudenberg KG
Original Assignee
Phoenix AG
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 Phoenix AG filed Critical Phoenix AG
Publication of EP1395762A1 publication Critical patent/EP1395762A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/05—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall the flexible wall being of the rolling diaphragm type

Definitions

  • the invention relates to an air spring arrangement, consisting at least of a cover, rolling piston and air bellows made of elastomeric material, which is usually provided with an embedded strength member, the two bellows ends being attached to the cover on the one hand and to the rolling piston on the other hand, whereby the air bellows encloses a volume-elastic air chamber, wherein the air bellows also forms two loops, namely:
  • a second loop which is connected to a rolling area of the lid.
  • air spring in a double loop construction is known in particular in the automotive field of application, reference being made, for example, to the following documents: DE 198 42 733 A1 DE 100 50 028 A1, DE 101 03 493 A1, WO 00/77417 A1 and US 3,876,193.
  • the air springs Due to the axis in which the air springs are installed according to the state of the art, the air springs must provide the axis-specific gimbals.
  • One of the components, the rolling piston or cover, is fixed to the body.
  • the other component is firmly connected to the handlebars of the axle (chassis connection).
  • the design principle according to the state of the art allows only small angle settings. Either there is a component collision, a cut-out. Buckling of the air bellows or compressive stresses in the strength member of the bellows that could damage life.
  • the object of the invention is to provide an air spring that allows higher angular adjustments without buckling, colliding with components or building up compressive stresses in the strength member, with the proviso that an air spring can be installed much deeper in the axis and resulting higher demands on the gimbals.
  • the second loop lies on the lid with respect to the support points only in the maximum deflection and rebound position.
  • this new construction means that no compressive stresses occur in the air bellows in the area of the cover also prevents lateral forces resulting from this.
  • the decrease in lateral forces results in a decreasing load on the suspension elements of the axle parts and thus also an improvement in driving comfort.
  • the decrease in the transverse forces results in a decrease in the resulting frictional forces in the sealing and contact elements.
  • FIG. 1 shows a representation of a double loop construction, the second loop resting on two support points;
  • FIG. 2 shows a representation of a double loop construction according to section line AA (FIG. 1);
  • Fig. 3 is an illustration which is rotated by 90 ° compared to the double loop construction according to Fig. 1;
  • Fig. 4 is an illustration of a double loop construction along section line A-A (Fig. 3).
  • FIG. 1 shows an air spring arrangement 1 with the essential basic components, namely air bellows 4, cover 2 and rolling piston 3.
  • the cover which is fixed in place on the body, can be designed as a pressure vessel, possibly in connection with a valve (DE 198 19 642 A1).
  • the rolling piston is firmly connected to the handlebar of the axle.
  • the first loop 7 of the air bellows slides along the outer wall 10 of the rolling piston during the deflection and rebounding, reference being made in particular to FIG. 2.
  • the second loop 8 of the air bellows corresponds circumferentially to the rolling area of the cover.
  • the roll-off area therefore has the meaning of a roll-off surface which is usually of an arcuate (concave) design.
  • Cone surfaces (DE 101 03493 A1) are also common.
  • the second loop 8 on the cover 2 only rests on two points 11.
  • the second loop rolls over the support points 11.
  • the two support points are arranged at the same distance from one another, in particular in the circumferential direction of the cover.
  • the support points 11 are formed by contouring the cover 2, in particular in the form of a step contour, reference being made in this regard in particular to FIG. 3.
  • FIG. 2 shows the area of the second loop 8 without contact with the cover 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

L'invention concerne un système de ressort pneumatique (1) au moins composé d'un couvercle (2), d'un piston de roulement (3) et d'un soufflet de ressort pneumatique (4) en matériau élastomère généralement pourvu d'un support de stabilité intégré. Les deux extrémités de soufflet sont fixées d'une part au couvercle et d'autre part au piston de roulement, le soufflet de ressort pneumatique renfermant ainsi une chambre d'air à volume variable. Par ailleurs, le soufflet de ressort pneumatique constitue deux boucles (7, 8), c.-à-d. une première boucle (7) pouvant coulisser le long de la paroi extérieure du piston de roulement (3), et une deuxième boucle (8) reliée à une zone de roulement du couvercle (2). Le système de ressort pneumatique selon l'invention (1) est caractérisé en ce que la deuxième boucle (8) s'appuie contre le couvercle (2) sur seulement deux points (11), et roule sur les points d'appui (11) lors de variations d'angle du soufflet de ressort pneumatique (4) dues à la contraction et à l'extension du piston de roulement (3).
EP02745108A 2001-06-15 2002-05-31 Systeme de ressort pneumatique Withdrawn EP1395762A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10128679 2001-06-15
DE10128679 2001-06-15
PCT/DE2002/002004 WO2002103218A1 (fr) 2001-06-15 2002-05-31 Systeme de ressort pneumatique

Publications (1)

Publication Number Publication Date
EP1395762A1 true EP1395762A1 (fr) 2004-03-10

Family

ID=7688148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02745108A Withdrawn EP1395762A1 (fr) 2001-06-15 2002-05-31 Systeme de ressort pneumatique

Country Status (4)

Country Link
US (1) US20040041314A1 (fr)
EP (1) EP1395762A1 (fr)
DE (1) DE10224287B4 (fr)
WO (1) WO2002103218A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1424506B1 (fr) * 2002-11-29 2008-04-09 Carl Freudenberg KG Ensemble de suspension pneumatique
EP1464866B1 (fr) * 2003-04-03 2009-07-01 Carl Freudenberg KG Ensemble ressort pneumatique
DE102005045804A1 (de) * 2005-09-24 2007-03-29 Continental Aktiengesellschaft Gasfederanordnung
DE102006012002B4 (de) * 2006-03-16 2017-09-14 Vibracoustic Gmbh Luftfeder
DE102010016400A1 (de) * 2010-04-12 2011-10-13 Continental Teves Ag & Co. Ohg Luftfeder mit doppelter Rollfalte

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127729B (de) * 1957-02-19 1962-04-12 Phoenix Gummiwerke Ag Abrollkoerper aus Metall, Gummi oder Kunststoff fuer einen Stuelpbalg von Luftfedern, insbesondere fuer Kraftfahrzeuge
US3876193A (en) * 1972-11-29 1975-04-08 Gen Motors Corp Boot controlled unitary valve and seal assembly
DE2904522A1 (de) * 1979-02-07 1980-08-21 Continental Gummi Werke Ag Rollbalg fuer fahrzeug-luftfederungen
DE3643073A1 (de) 1986-12-17 1988-06-30 Phoenix Ag Luftfeder
JP2662218B2 (ja) * 1987-04-03 1997-10-08 株式会社ブリヂストン 空気ばね
DE4008187A1 (de) * 1990-03-15 1991-09-19 Continental Ag Abrollkolben fuer den rollbalg einer rollbalg-luftfeder
US5752692A (en) * 1997-01-06 1998-05-19 The Gates Corporation Side load compensating airspring strut
HUP0003202A3 (en) * 1997-05-28 2001-03-28 Phoenix Ag Pneumatic spring system
ES2182370T3 (es) * 1997-09-25 2003-03-01 Phoenix Ag Sistema de suspension neumatica.
DE19745415C2 (de) * 1997-10-15 2003-04-10 Continental Ag System, enthaltend einen Luftfederbalg und einen Abrollkolben, der sich auf einer gekrümmten Bahn bewegt
EP0942193A3 (fr) * 1998-03-11 2000-06-07 BRIDGESTONE/FIRESTONE, Inc. Vérin pneumatique à cannelures
MXPA02000370A (es) * 1999-06-11 2004-05-21 Gates Corp Muelle de aire de compartimiento dual.
EP1144210B1 (fr) 1999-10-15 2005-11-23 Carl Freudenberg KG Systeme d'amortisseur pneumatique
DE10103493A1 (de) * 2000-02-17 2001-08-23 Phoenix Ag Luftfederanordnung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02103218A1 *

Also Published As

Publication number Publication date
US20040041314A1 (en) 2004-03-04
DE10224287B4 (de) 2006-07-13
WO2002103218A1 (fr) 2002-12-27
DE10224287A1 (de) 2002-12-19

Similar Documents

Publication Publication Date Title
EP1693233B1 (fr) Jambe de ressort pneumatique avec amortisseur positionné centralement
DE112011101558B4 (de) Befestigungsanordnung eines Fahrerhauses eines Fahrzeugs
DE102005059117B4 (de) Aktuator für ein aktives Fahrwerk eines Kraftfahrzeugs
EP2751446B1 (fr) Dispositif de suspension pneumatique pour vehicule automobile
EP1173691B1 (fr) Palier hydraulique
DE112012002602T5 (de) Dämpferrohr-Verstärkungshülse
EP1144210A2 (fr) Systeme d'amortisseur pneumatique
DE4021314C2 (fr)
DE112011104729T5 (de) Dämpferrohr-Verstärkungshülse
DE102009027319A1 (de) Elastische Buchse
EP1424506B1 (fr) Ensemble de suspension pneumatique
EP2605923B1 (fr) Jambe de force a ressort pneumatique avec le montage souple du piston
EP2673529B1 (fr) Jambe de suspension pneumatique pour un véhicule
DE112011101883B4 (de) Zweistufen-Ventil und hydraulisch gedämpftes Ventil
DE10111242C1 (de) Luftfederbein
DE10224287B4 (de) Luftfederanordnung
EP1402195A1 (fr) Suspension pneumatique
DE102005043192A1 (de) McPherson Vordereckenmoduleinheit mit bananen- oder S-förmiger Feder
EP0391075A2 (fr) Ressort pneumatique à soufflet roulant
DE102017201267A1 (de) Federrestspannungsvorrichtung
EP1923301B1 (fr) Amortisseur d'oscillations doté d'une butée
DE102011081495A1 (de) Flach bauende Radaufhängung mit einem quer umgelenktem Dämpferelement und einer Schwinge
EP3458740B1 (fr) Amortisseur monotube et palier de jambe élastique pour véhicules motorisés
DE102021115050A1 (de) Freizeitfahrzeug mit einer Luftbalgfederung
WO2019020625A1 (fr) Système d'amortisseur et de suspension d'une roue de véhicule

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20030306

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VIBRACOUSTIC GMBH & CO. KG

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CARL FREUDENBERG KG

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20060824