EP3601838A1 - Partie centrale pour un palier élastique, palier élastique comprenant une partie centrale de ce type et procédé de fabrication d'une partie centrale de ce type - Google Patents

Partie centrale pour un palier élastique, palier élastique comprenant une partie centrale de ce type et procédé de fabrication d'une partie centrale de ce type

Info

Publication number
EP3601838A1
EP3601838A1 EP18712829.3A EP18712829A EP3601838A1 EP 3601838 A1 EP3601838 A1 EP 3601838A1 EP 18712829 A EP18712829 A EP 18712829A EP 3601838 A1 EP3601838 A1 EP 3601838A1
Authority
EP
European Patent Office
Prior art keywords
core
inner diameter
end portions
elastic bearing
sleeve
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Withdrawn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
EP18712829.3A
Other languages
German (de)
English (en)
Inventor
Hilrich Kardoes
Philipp Werner
Jan BRABAND
Steffen Nitschke
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.)
Vibracoustic SE
Original Assignee
Vibracoustic 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 Vibracoustic SE filed Critical Vibracoustic SE
Publication of EP3601838A1 publication Critical patent/EP3601838A1/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Withdrawn legal-status Critical Current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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/3863—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type characterised by the rigid sleeves or pin, e.g. of non-circular cross-section
    • 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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
    • F16F1/3842—Method of assembly, production or treatment; Mounting thereof
    • 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

Definitions

  • Core for an elastic bearing elastic bearing with such a core and method for producing such a core
  • the present invention relates to a core for an elastic bearing, wherein the core is for receiving a bolt or a screw, wherein the core has a sleeve which has a central portion and two adjoining the central portion, the outer end portions. Furthermore, the invention relates to an elastic bearing for a motor vehicle with such a core, and a method for producing such a core.
  • An elastic bearing of the type mentioned is used for example in a chassis of a motor vehicle to dampen the forces or shocks occurring when rolling over bumps and so to increase the ride comfort. Furthermore, the elastic bearing also serves to connect motor vehicle parts with each other or with the chassis of the motor vehicle.
  • a preferred application of the above-mentioned elastic bearing is in a chassis axle of a commercial vehicle or a trailer axle, which can also be referred to as a trailer axle.
  • An elastic bearing for a chassis axle or a trailer axle has a core and an vulcanized to the core elastomeric body.
  • the elastic bearing is pressed into a receiving eye, wherein a bolt or a screw is passed through a through-hole formed in the core to connect the elastic bearing with a vehicle part.
  • the outer diameter of the core is sufficiently large.
  • a small inner diameter of the through hole is required for the centering of the bolt and / or the screw.
  • DE 10 2010 036 027 A1 discloses a steel rubber bushing which has a steel bushing for receiving a screw or a bolt and a vulcanized elastomeric body. Within the steel bush, a plastic spacer is arranged, which is provided with a through hole to pass a screw or a bolt.
  • the present invention has for its object to provide a core for an elastic bearing and an elastic bearing, which have a greater design freedom and a low weight and are also inexpensive. Furthermore, the invention has for its object to provide a method for producing such a core, which is simple and inexpensive to carry out.
  • the invention relates to a core for an elastic bearing, wherein the core is for receiving a bolt or a screw, the core having a sleeve having a central portion and two adjoining the central portion, the outer end portions, wherein the Central portion having a first inner diameter and the end portions have a second inner diameter and wherein the second inner diameter is smaller than the first inner diameter.
  • the core having elastic bearing is preferably used in a chassis of a motor vehicle, in particular a commercial vehicle. Further preferably, the core is used in a chassis axle or a trailer axle of a motor vehicle, in particular a commercial vehicle.
  • a sleeve By using a sleeve, a great freedom of design for the design of the outer contour of the core is created. In particular, an additional degree of freedom in the adjustment of the stiffness of the bearing and the life is created.
  • the second inner diameter serves to guide a bolt or a screw. In particular, the second inner diameter corresponds to an outer diameter of a bolt or a screw.
  • the core formed from a sleeve has a low weight.
  • the reduction of the inner diameter is carried out by forming the end portions of the first inner diameter to the second inner diameter.
  • the core is made of a thin-walled sleeve, wherein the wall thickness of the sleeve is tuned to the required stability for receiving the Anschraub mechanism.
  • the second end portions are calibrated from the first inner diameter to the second inner diameter.
  • a guide for a screw or bolt is created in a simple and cost-effective manner.
  • the second end sections are formed from the first inner diameter to the second inner diameter, in particular compressed.
  • the free ends of the end portions are reshaped.
  • the deformed end portions have a third inner diameter which is smaller than the second inner diameter.
  • the deformed end portions form the smallest resulting diameter for guiding a screw or bolt.
  • the end faces of the end portions are increased and thus reduces the risk that the core digs into a mounting surface of a chassis part, such as a console.
  • the end portions are deformed radially inwardly. Further preferably, the end portions are bent radially inwardly.
  • the forming takes place in a process downstream of the calibration process.
  • the free ends of the end portions are radially inwardly rolled.
  • the radially inwardly rolled end sections form the smallest resulting inner diameter for guiding a bolt or a screw.
  • the end surfaces of the end portions are increased in a simple and inexpensive manner, so that the risk is reduced that the core digs into a mounting surface of a chassis part, such as a console.
  • the end portions are cold-formed, so that the strength of the core in the region of the rolled end portions is increased. As a result, high Anschraub mechanism be included.
  • the free ends of the end portions have a third inner diameter which is smaller than the first inner diameter and the second inner diameter.
  • the free ends of the end sections form the smallest resulting diameter for the guidance of a screw or a bolt.
  • the reduced to the second inner diameter end portions and the central portion are each connected by a respective ramp-shaped transition section.
  • the ramped transition section provides a smooth transition from the center section to the end sections.
  • expansion peaks are avoided in a vulcanized on the core elastomer body due to sharp-edged transition sections, thus increasing the life of the elastomer body.
  • the ramped transition portions provide a smooth transition from the central portion to the respective end portions and thus for improved stress distribution within the core when the two end portions are calibrated to the second inner diameter.
  • the middle section has a constriction.
  • bearing properties such as stiffness and life requirements, can be adjusted.
  • the constriction can be generated by calibration, ie compression.
  • the sleeve is made of metal.
  • the core has a high strength.
  • the wall thickness of the sleeve is preferably matched to the necessary stability to accommodate the directional concern.
  • the sleeve is formed as a thin-walled metal sleeve.
  • the elastomeric body is vulcanized on an outer side of the core.
  • the core is formed of a simple sleeve, a great freedom of design for the design of the outer contour of the core is created.
  • the smaller internal diameter end portions serve to guide a screw or a bolt.
  • the sleeve is designed such that it is tuned to the necessary stability for receiving the Anschraub protector while having a low weight.
  • the elastomeric body can be bounded on the outer circumference by an outer sleeve. Further optionally, the elastomeric body may comprise at least one kidney.
  • the elastic bearing has an outer sleeve.
  • the outer sleeve is vulcanized to the elastomer body.
  • the outer sleeve may be made of metal or plastic.
  • a method for producing such a core which has the following method steps. First, a sleeve having a first inner diameter is provided having a central portion and two outer end portions adjacent to the central portion. Subsequently, the end portions are calibrated to a second inner diameter smaller than the first inner diameter. In particular, the second end portions are compressed from the first inner diameter to the second inner diameter. This reduction is adjusted to provide optimum properties for an elastic bearing while providing a suitable diameter from which the free ends of the end portions can be radially inwardly rolled to set the desired inner diameter for guiding a screw or bolt , In addition, the calibration rate or in a multi-step calibration step, the calibration rates are to be chosen so that the core material can flow and does not crack.
  • the free ends of the end portions are reshaped inwards.
  • the deformed portions of the free ends take over the guidance of a screw or a bolt, since they dictate the smallest inner diameter.
  • the end face is enlarged by the forming, so that the risk that the core digs into a mounting surface of a vehicle part, in particular a console, is reduced.
  • the free ends of the end portions are rolled inwards.
  • the end portions are reshaped in a process subsequent to the calibration process.
  • Fig. 1 shows a cross section through an elastic bearing according to a first
  • Fig. 3 shows a cross section through an elastic bearing according to a second
  • Embodiment with a core according to the first embodiment Embodiment with a core according to the first embodiment.
  • an elastic bearing 10 is shown, which is used in a chassis, not shown, of a motor vehicle, in particular a trailer axle of a commercial vehicle.
  • the elastic bearing 10 has a core 12 and an elastomeric body 14.
  • the elastomeric body 14 is bonded cohesively to an outer side 16 of the core 12, in particular vulcanized.
  • the elastic bearing 10 is pressed into an unillustrated receiving eye of a chassis part.
  • the core 12 has a sleeve 18 which has a central portion 20 and two adjoining the central portion 20, outer end portions 22.
  • the sleeve 18 is made of thin-walled metal, in particular steel.
  • the core 12 further has a central passage opening 24 for receiving a screw, not shown, or a bolt, not shown, to connect the elastic bearing 10 with a chassis part, not shown, such as a console.
  • the middle section 20 has a first inner diameter 11.
  • the end portions 22 are reduced to a second inner diameter 12 and connected via a respective ramp-shaped transition portion 26 with the central portion 20.
  • the free ends 28 of the end portions 22 are radially inwardly formed, in particular rolled and have a third inner diameter 13.
  • the third inner diameter 13 forms the smallest inner diameter and takes over the leadership of a screw inserted into the through hole 24 or a bolt.
  • an end face 30 of the free ends 28 is increased, so that the risk that the core 12 digs into a mounting surface of a chassis part, not shown, is reduced.
  • a sleeve 18 is provided by being cut to length, for example, by a thin-walled tube.
  • the cut to length of the tube sleeve 18 initially has the first inner diameter 11 over its entire length.
  • the end portions 22 are calibrated to the second inner diameter 12 by the end portions 22 are compressed to the second inner diameter 12.
  • the free ends 28 of the end portions 22 are radially inwardly rolled so that the free ends 28 have the third inner diameter 13.
  • a second embodiment of the core 12 is shown, which differs from the first embodiment in that in the central portion 20, a constriction 32 is introduced.
  • bearing properties such as stiffness and life requirements, can be adjusted.
  • the constriction 32 can be generated by calibration, ie compression.
  • the core 12 is formed of a sleeve 18, the core 12 has a low weight.
  • the sleeve 18 allows a great freedom of design in the design of the outer side 16, so that an additional degree of freedom in the adjustment of the stiffness of the bearing 10 and the life is created.
  • a second embodiment of the elastic bearing 10 is shown, which differs from the first embodiment in that the elastic bearing 10 has an outer sleeve 34 which is vulcanized to the elastomer body 14.
  • the outer sleeve 34 may be made of metal or plastic.
  • the elastic bearing 10 is pressed together with the outer sleeve 34 in a receiving eye, not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Springs (AREA)
  • Vibration Prevention Devices (AREA)
  • Support Of The Bearing (AREA)

Abstract

L'invention concerne une partie centrale (12) pour un palier (10) élastique. La partie centrale (12) sert à recevoir un boulon ou une vis. La partie centrale (12) comporte une douille (18), qui comporte une section centrale (20) et deux sections d'extrémité (22) situées à l'extérieur qui se raccordent à la section centrale (20). La section centrale (20) comporte un premier diamètre intérieur (I1), et les sections d'extrémité (22) comportent un deuxième diamètre intérieur (I2), le deuxième diamètre intérieur (I2) étant inférieur au premier diamètre intérieur (I1). L'invention concerne en outre un palier (10) élastique pour un châssis d'un véhicule automobile équipé d'une partie centrale (12) de ce type ; elle concerne également un procédé de fabrication d'une partie centrale (12) de ce type.
EP18712829.3A 2017-03-22 2018-03-13 Partie centrale pour un palier élastique, palier élastique comprenant une partie centrale de ce type et procédé de fabrication d'une partie centrale de ce type Withdrawn EP3601838A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017106204.1A DE102017106204B4 (de) 2017-03-22 2017-03-22 Kern für ein elastisches Lager, elastisches Lager mit einem derartigen Kern sowie Verfahren zur Herstellung eines derartigen Kerns
PCT/EP2018/056289 WO2018172145A1 (fr) 2017-03-22 2018-03-13 Partie centrale pour un palier élastique, palier élastique comprenant une partie centrale de ce type et procédé de fabrication d'une partie centrale de ce type

Publications (1)

Publication Number Publication Date
EP3601838A1 true EP3601838A1 (fr) 2020-02-05

Family

ID=61763941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18712829.3A Withdrawn EP3601838A1 (fr) 2017-03-22 2018-03-13 Partie centrale pour un palier élastique, palier élastique comprenant une partie centrale de ce type et procédé de fabrication d'une partie centrale de ce type

Country Status (3)

Country Link
EP (1) EP3601838A1 (fr)
DE (1) DE102017106204B4 (fr)
WO (1) WO2018172145A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11719278B2 (en) 2020-12-21 2023-08-08 Contitech Vibration Control Gmbh Preloaded elastomeric bushing

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB351196A (en) * 1929-05-24 1931-06-25 Ets Tecalemit Sa Improvements in a frictionless joint and process for manufacturing the same
FR1407673A (fr) * 1963-05-10 1965-08-06 Riv Officine Di Villar Perosa Joint élastique pour relier entre elles des pièces de machines
DE3346665A1 (de) * 1983-12-23 1985-07-04 Lemförder Metallwaren AG, 2844 Lemförde Elastisches lager mit zwangsfuehrung
JPS6430937A (en) * 1987-07-22 1989-02-01 Maruyasu Kogyo Manufacture of rubber bush for swing arm
WO2002085552A1 (fr) * 2001-04-19 2002-10-31 Toyo Tire & Rubber Co., Ltd. Procede pour usiner une partie d'extremite d'un corps tubulaire metallique, corps tubulaire metallique, procede pour produire une douille resistante aux vibrations par mise en oeuvre du procede d'usinage et douille resistante aux vibrations
EP1563927B1 (fr) * 2004-02-13 2007-11-07 Michelin AVS S.A.S. Méthode de formage de l'extrêmité d'une douille rigide, outil de formage et articulation élastique
JP4925809B2 (ja) * 2006-12-21 2012-05-09 株式会社ブリヂストン ブッシュ
DE102008008246B4 (de) * 2008-02-08 2017-04-20 Zf Friedrichshafen Ag Buchsenlager mit verringertem Bauraumbedarf
JP5401701B2 (ja) * 2009-06-29 2014-01-29 東海ゴム工業株式会社 筒状金具の製造方法及び該筒状金具を用いた防振ゴムブッシュの製造方法
DE102010036027A1 (de) 2010-08-31 2012-03-01 Bpw Bergische Achsen Kg Stahlgummibuchse
US8226100B2 (en) * 2010-10-26 2012-07-24 The Pullman Company Elastomeric bushing assembly with multi-piece bar pin
SE537380C2 (sv) * 2013-07-05 2015-04-14 Scania Cv Ab Reaktionsstag med en deformerbar bussning

Also Published As

Publication number Publication date
DE102017106204A1 (de) 2018-09-27
DE102017106204B4 (de) 2019-08-29
WO2018172145A1 (fr) 2018-09-27

Similar Documents

Publication Publication Date Title
DE102005043234B4 (de) Verfahren zur Herstellung eines elastomeren Buchsenlagers
EP2478254B1 (fr) Manchon élastique, en particulier manchon de bras oscillant combiné
EP2671741A1 (fr) Bras oscillant transversal et son procédé de fabrication
EP1736681A1 (fr) Manchon avec butée radiale et/ou axiale et procédé pour la réalisation d'une butée axiale d'un manchon
EP2266821A1 (fr) Dispositif de direction et procédé de fabrication d'un dispositif de direction
DE112008000166T5 (de) Gesteigerter Axialwert und verbesserte Haltbarkeit einer elastomeren Buchse
EP2905503A2 (fr) Douille de palier en élastomère, plus particulièrement pour le logement d'un amortisseur d'une liaison d'essieux de véhicule
DE102017106204B4 (de) Kern für ein elastisches Lager, elastisches Lager mit einem derartigen Kern sowie Verfahren zur Herstellung eines derartigen Kerns
DE19923698A1 (de) Querlenker
EP0496044B1 (fr) Support élastique, notamment pour le support d'un oeillet de ressort sur la caisse d'un véhicule
DE102018200344A1 (de) Hydraulische Lagerbuchse
DE102017108460A1 (de) Rohrförmiges Bauteil mit einem Strangpressprofil
DE102018106365B4 (de) Lageranordnung
DE10261756A1 (de) Elastomerlager sowie Verfahren zur Einstellung dessen Dämfpungscharakteristik
DE102011089259A1 (de) Herstellungsverfahren für elastomeres Lager und vorspannbares Buchsenlager
DE102018218266A1 (de) Innenteil für ein Molekulargelenk eines Fahrwerklenkers
DE102013225334A1 (de) Lenker eines Fahrwerks für Kraftfahrzeuge
DE102005060490A1 (de) Komfortgummilager für Kraftfahrzeuge
DE102017201903B4 (de) Lagereinheit
EP1035349A2 (fr) Support élastomérique avec butées axiales et méthode de fabrication d'un tel support
DE102019208049B4 (de) Gehäuse für einen Aktuator einer verstellbaren Stabilisatoranordnung sowie Verfahren zum Herstellen eines Gehäuses für einen Aktuator einer verstellbaren Stabilisatoranordnung
DE102016225127A1 (de) Gelenk für ein Fahrzeug und Verfahren zum Herstellen eines solchen Gelenkes
EP4317736A1 (fr) Palier à douille avec corps élastomère en plusieurs parties
DE102021125025A1 (de) Lenker für ein Fahrzeug
WO2002066855A1 (fr) Composant de palier

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

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

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20191011

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200921

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20201102