EP1534978A1 - Palier en caoutchouc elastique - Google Patents

Palier en caoutchouc elastique

Info

Publication number
EP1534978A1
EP1534978A1 EP03756433A EP03756433A EP1534978A1 EP 1534978 A1 EP1534978 A1 EP 1534978A1 EP 03756433 A EP03756433 A EP 03756433A EP 03756433 A EP03756433 A EP 03756433A EP 1534978 A1 EP1534978 A1 EP 1534978A1
Authority
EP
European Patent Office
Prior art keywords
intermediate tube
longitudinal slots
elastic rubber
rubber bearing
axial
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Withdrawn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
EP03756433A
Other languages
German (de)
English (en)
Inventor
Helmut Kammel
Bernd KÜMPER
Axel Sichler
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.)
ZF Lemfoerder GmbH
Original Assignee
ZF Lemfoerder GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=31895688&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1534978(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ZF Lemfoerder GmbH filed Critical ZF Lemfoerder GmbH
Publication of EP1534978A1 publication Critical patent/EP1534978A1/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Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to an elastic rubber bearing with an intermediate tube, namely a bush bearing with a stiffening insert arranged in the elastomeric bearing body.
  • Rubber bearings of the bushing type which are used, for example, in automotive engineering to support the components of the wheel suspension, for example the wishbones, essentially consist of a mostly hollow cylindrical, usually metallic inner part, an outer sleeve surrounding this inner part and an intermediate one and one with the inner part and the Outer sleeve connected by vulcanization elastomeric bearing body.
  • Classify Nersteifungselement By means of this mostly tubular stiffening element consisting of a hard plastic or metal, the ratio between the radial identification and the torsion identification can be increased or the torsion identification reduced.
  • a bush bearing with a tubular stiffening element (intermediate tube) inserted into the elastomer is disclosed, for example, in JP 07248422.
  • the intermediate tube is either axially continuously slotted or has two longitudinal slots extending from an end face of the part over approximately 2/3 of its axial extent.
  • the preload which may be generated is not distributed uniformly over the circumference of the bearing body. This disadvantage could be avoided by several slots distributed over the circumference.
  • the stiffening element would then consist of several parts, which would make it significantly more difficult to insert it into the injection mold for casting with the elastomer.
  • the second form of training disclosed in the document has two slits which are opposite one another on the circumference but start from an end face of the part and are not continuous. Although this results in a more uniform preload in relation to the circumference of the bearing body, there is the disadvantage of an uneven distribution of the preload in relation to the axial bearing extension.
  • the object of the invention is to design a generic bearing so that it is easy to assemble during manufacture for casting with the elastomer or its parts are simply inserted into the corresponding tool and are in its bearing body after vulcanization by calibrating the outer sleeve in the elastomer can generate a preload which is distributed as evenly as possible both in relation to the circumference and in the axial direction.
  • the elastic rubber bearing according to the invention which is designed as a bush bearing and consists of an essentially cylindrical (mostly hollow cylindrical) inner part, an outer sleeve surrounding it and an elastomeric bearing body located therebetween and connected to the inner part and the sleeve by vulcanization, is in the bearing body arranged a tubular stiffening element which has at least two non-continuous longitudinal slots distributed around its circumference and running essentially in the axial direction.
  • the intermediate tube in contrast to the prior art, is slotted on both sides with respect to its axial extent. At least one longitudinal slot extends from each of the two axial ends of the intermediate tube and is open towards this end and extends in the direction of the other axial end.
  • the longitudinal slots are not axially continuous, but they each extend at least to the middle of the intermediate tube in relation to the axial direction. Due to the distribution of the longitudinal slots both on the circumference of the intermediate tube and in relation to its axial extension, it is possible in the elastomer also in its area located radially between the stiffening element and the inner part, solely by reducing the diameter of the outer sleeve to build up a very uniform preload based on the circumference and the axial bearing extension. The caused by the calibration of the outer sleeve
  • Rubber compression leads to a high radial rigidity of the elastomeric bearing body, which is almost the same over the entire circumference.
  • the ratio between radial The identifier and torsion identifier are increased and thus the radial load capacity is increased.
  • the radial load capacity which is almost the same over the entire circumference, increases the service life of the bearing. Due to the lower torsional stiffness in comparison, the driving behavior of the bearing according to the invention is improved in the area of the wheel suspension of vehicles. The suspension becomes softer. Due to the fact that the inner part does not have to be expanded to produce the pretension, high-strength materials can be used for this. This increases the stability of the inner part, which also has an advantageous effect on the service life of the entire bush bearing. In addition, the manufacturing costs are reduced by eliminating one step after assembling the bearing and its vulcanization.
  • the longitudinal slots are open alternately to the axial ends of the intermediate tube, that is to say if, relative to the circumference of the intermediate tube, longitudinal slots arranged adjacent to one another are each open to opposite axial ends of the intermediate tube.
  • the longitudinal slots are also arranged uniformly distributed over the circumference of the intermediate tube, that is to say they are at equal distances from one another at least in the region of the axial ends of the intermediate tube.
  • the longitudinal slots also run parallel to one another and to the central axis of the bearing.
  • the longitudinal slots extend from the respective axial end of the intermediate tube in the axial direction at least to the center thereof.
  • the longitudinal slots extend beyond the axial center, but of course nevertheless not continuously, so that the longitudinal slots extending from opposite axial ends overlap with regard to their axial extent.
  • the longitudinal slots which are open at one axial end of the intermediate tube and separated from the other axial end by a web, form two interdigitated structures.
  • the intermediate tube and the longitudinal slots incorporated therein are dimensioned such that the ratio between the height of a web separating the respective slot from an axial end of the intermediate tube and the total axial length of the intermediate tube is the ratio of the width of the slot concerned and corresponds to the diameter of the intermediate tube.
  • the intermediate tube can have additional recesses distributed over its circumferential surface in addition to the slots, but are closed at both axial ends. These act as flow openings, which promote the flow of the elastomer during vulcanization.
  • a flange can also be formed on one axial end or on both axial ends of the intermediate tube, said flange being penetrated by the longitudinal slots extending from the relevant axial end.
  • the flange can have a closed ring shape or can be divided into segments by the longitudinal slots.
  • the intermediate tube has elevations distributed around the circumference in the region of the axial ends (end region). These elevations can be formed both on the outer circumferential surface and on the inner surface of the intermediate tube or even on both surfaces. In order to ensure the function of the elastomer, these elevations are formed exclusively in the forehead area. The elevations facilitate an optimal insertion of the intermediate tube or the intermediate sleeve into the injection mold and thus improve the introduction of the elastomer. A means having the same effect is the formation of such elevations on the tool itself, by means of which corresponding elevations or depressions form on the rubber contour.
  • the intermediate tube of the bearing is depending on the intended use and the resulting requirements made of steel, aluminum or a solid plastic.
  • the bush bearing according to the invention is preferably designed as a prefabricated structural unit, for which calibration is largely unnecessary when it is installed as intended.
  • FIG. 1 shows an exemplary embodiment for an intermediate tube of a bearing according to the invention in a perspective view
  • FIG. 2 shows the intermediate tube according to FIG. 1 in a sectional view
  • Fig. 3 shows a bush bearing according to the invention with one arranged therein
  • Fig. 4 shows a modification of the intermediate tube according to Fig. 1 and
  • Fig. 5 is an intermediate tube with a flange formed on one side.
  • the stiffening element 4 which is generally made of sheet steel, has the shape of a hollow cylinder, into which four longitudinal slots 5, 5 ', 5 ", 5'” are incorporated, evenly distributed over its circumference, offset by 90 °.
  • the axially non-continuous longitudinal slots 5, 5 ', 5 ", 5'” are designed in a manner according to the invention in such a way that the intermediate tube 4 is slotted on both sides with respect to its axial extent.
  • the longitudinal slots 5, 5 ', 5 ", 5'” alternately begin at one of the two axial end faces 6, 7 of the intermediate tube 4.
  • the longitudinal slots 5, 5 ', 5 “, 5'” run parallel to one another and to the longitudinal axis 8, not shown in FIG. 1, of the stiffening element 4.
  • the length of the slots 5, 5 ', 5 “, 5'” which are only open to one axial end 6 of the part is selected such that the height H of the slot 5, 5 ', 5 “, 5'” from the respective the other axial end 7 of the intermediate tube separating web 9 to the total axial length L of the intermediate tube 4 has the same ratio as the width B of the respective longitudinal slot 5, 5 ', 5 ", 5'” to the diameter D of the intermediate tube 4.
  • FIG. 2 shows the stiffening element 4 according to FIG.
  • the two longitudinal slots 5 ', 5''arranged on the circumference adjacent to the slot 5 shown in FIG. 2 extend in the axial direction starting from the opposite axial end face 6 of the cylindrical element or intermediate tube 4 (see here Fig. 1).
  • the stiffening element 4 designed in this way can additionally have a plurality of recesses 10 distributed over its circumference. These so-called flow openings or bores 10, not shown in FIGS. 1 and 2, promote better flow of the elastomer during spraying.
  • Fig. 3 the bearing according to the invention with the intermediate tube 4 arranged therein is shown in a sectional view.
  • the bearing consists of the inner part 1, an outer sleeve 2 arranged around the inner part and the elastomeric bearing body 3 arranged in between.
  • the stiffening element 4 is vulcanized into the elastomeric bearing body 3 with the longitudinal slots 5, 5 ', 5 ", 5"', which according to the example shown in FIG. 3, the flow bores 10 already mentioned.
  • the intermediate tube 4 shown in the example has, on its circumferential surface, in the region of both axial ends 6, 7, elevations 11 arranged distributed over the circumference.
  • elevations 11 which do not extend over the entire axial length of the component, an optimal insertion of the Intermediate tube 4 in the injection mold for joining the bearing by introducing the elastomer between the inner part 1 and outer sleeve 2 favored.
  • the elevations 11 serve simultaneously as a guide and spacer, so that the longitudinal slots 5, 5 ', 5 ", 5'" of the intermediate tube 4 do not come into contact with the wall of the injection mold.
  • FIG. 5 also shows an intermediate pipe 4 as a single part in a perspective view, on which a flange is formed at an axial end 6 and extends radially in its outer circumference.
  • the opposite axial end 7 of the intermediate tube 4 has no flange.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Support Of The Bearing (AREA)

Abstract

La présente invention concerne un palier en caoutchouc élastique comprenant un tube intermédiaire, notamment un coussinet comprenant un système de rigidification disposé dans un corps d'appui élastomère. L'invention a pour objet de produire le palier mentionné de sorte que dans son corps d'appui peut être produite, après vulcanisation, par calibrage de la gaine extérieure dans l'élastomère, une précontrainte qui est répartie avec une homogénéité maximale à la fois sur la périphérie et en direction axiale. A cet effet, l'élément de rigidification du palier réalisé selon l'état de la technique se présente selon l'invention sous la forme d'un tube intermédiaire qui est fendu des deux côtés dans son extension axiale.
EP03756433A 2002-09-06 2003-09-05 Palier en caoutchouc elastique Withdrawn EP1534978A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10241246A DE10241246B4 (de) 2002-09-06 2002-09-06 Elastisches Gummilager
DE10241246 2002-09-06
PCT/DE2003/002964 WO2004025138A1 (fr) 2002-09-06 2003-09-05 Palier en caoutchouc elastique

Publications (1)

Publication Number Publication Date
EP1534978A1 true EP1534978A1 (fr) 2005-06-01

Family

ID=31895688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03756433A Withdrawn EP1534978A1 (fr) 2002-09-06 2003-09-05 Palier en caoutchouc elastique

Country Status (5)

Country Link
US (1) US6997614B2 (fr)
EP (1) EP1534978A1 (fr)
BR (1) BR0306291A (fr)
DE (1) DE10241246B4 (fr)
WO (1) WO2004025138A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005011722U1 (de) * 2005-07-27 2006-12-07 Hühoco Metalloberflächenveredelung Gmbh Hülse, insbesondere Außenhülse für ein Elastomerlager, und Elastomerlager mit einer derartigen Hülse
DE102006021011B4 (de) * 2006-05-04 2021-05-12 Boge Elastmetall Gmbh Buchsenlager mit axialseitig profiliertem Lagerkörper
DE102006032826A1 (de) * 2006-07-14 2008-01-17 Carl Freudenberg Kg Stabilisator zur Anlenkung einer Stabilisatorstange an einem Kraftfahrzeug
DE102009046153A1 (de) * 2009-10-29 2011-05-12 Robert Bosch Gmbh Scheibenwischvorrichtung in einem Fahrzeug
JP5806877B2 (ja) * 2011-08-09 2015-11-10 住友理工株式会社 防振ブッシュ
CN102829113A (zh) * 2012-09-24 2012-12-19 广西柳工机械股份有限公司 滚筒式减震悬置装置
JP6054707B2 (ja) * 2012-11-02 2016-12-27 山下ゴム株式会社 防振装置
DE102014003324B4 (de) * 2014-03-08 2015-11-26 Audi Ag Gummi-Metall-Hülsenlager
DE102015009259A1 (de) * 2015-07-16 2016-06-23 Audi Ag Radaufhängung
CN106271420B (zh) * 2016-08-26 2018-04-17 哈尔滨汽轮机厂有限责任公司 一种核电弹性夹套的加工方法
CN107044476A (zh) * 2017-04-06 2017-08-15 桐乡市洲泉振兴五金塑料制品厂 一种摩托车刹车拉线
CN107061474A (zh) * 2017-04-06 2017-08-18 桐乡市洲泉振兴五金塑料制品厂 一种摩托车刹车拉线的骨架
DE102018211620A1 (de) 2018-07-12 2020-01-16 Skf Marine Gmbh Gleitlager

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2108154A1 (de) 1971-02-20 1972-09-07 Jörn, Raoul, Dipl.-Ing., 8992 Hengnau Gelenklager
DE19956153C1 (de) 1999-11-23 2001-07-26 Joern Gmbh Elastomerlager, insbesondere Gelenklager für einen Achslenker eines Kraftfahrzeugs

Family Cites Families (18)

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Publication number Priority date Publication date Assignee Title
US2608751A (en) * 1946-04-15 1952-09-02 Silentbloc Method of assembling resilient bearings
NL88909C (fr) * 1953-09-28
FR2126016A5 (fr) * 1971-02-20 1972-09-29 Jorn Raoul
JPS58102845U (ja) * 1981-12-29 1983-07-13 トヨタ自動車株式会社 サスペンシヨンア−ムのブツシユ組立体
JPS6122944U (ja) * 1984-07-16 1986-02-10 トヨタ自動車株式会社 ブッシュ組立体
US4744677A (en) * 1984-11-27 1988-05-17 Tokai Rubber Industries, Ltd. Bush assemblage
US4809960A (en) * 1987-03-26 1989-03-07 Nissan Motor Co., Ltd. Bushing assembly
EP0503213A1 (fr) * 1991-03-08 1992-09-16 The Pullman Company Manchon en caoutchouc et métal et procédé pour sa fabrication
JPH04302726A (ja) * 1991-03-29 1992-10-26 Kinugawa Rubber Ind Co Ltd 滑りブッシュ構造
JP3502108B2 (ja) * 1992-03-10 2004-03-02 北辰工業株式会社 ブッシュ
JPH07248422A (ja) 1994-03-10 1995-09-26 Sumitomo Metal Mining Co Ltd 光導波路型偏光解消子
DE4429102A1 (de) * 1994-08-17 1996-02-22 Lemfoerder Metallwaren Ag Radial und axial belastbares Buchsenlager für Fahrwerksteile in Kraftfahrzeugen
JPH08219210A (ja) * 1995-02-13 1996-08-27 Tokai Rubber Ind Ltd 防振支持体
US5820115A (en) * 1995-06-13 1998-10-13 Btr Antivibration Systems, Inc. Film slipper bushing assembly
JPH0960675A (ja) * 1995-08-25 1997-03-04 Hokushin Ind Inc ブッシュ
JPH0972365A (ja) * 1995-08-31 1997-03-18 Tokai Rubber Ind Ltd 防振ゴムブッシュ及びその製造方法
US6485180B2 (en) * 2001-01-04 2002-11-26 Delphi Technologies, Inc. Expandable rack bushing
DE10116053A1 (de) * 2001-03-30 2002-10-10 Zf Boge Gmbh Gummilager für Fahrwerksteile in Kraftfahrzeugen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2108154A1 (de) 1971-02-20 1972-09-07 Jörn, Raoul, Dipl.-Ing., 8992 Hengnau Gelenklager
DE19956153C1 (de) 1999-11-23 2001-07-26 Joern Gmbh Elastomerlager, insbesondere Gelenklager für einen Achslenker eines Kraftfahrzeugs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2004025138A1

Also Published As

Publication number Publication date
BR0306291A (pt) 2004-08-24
DE10241246A1 (de) 2004-03-25
US6997614B2 (en) 2006-02-14
US20040213491A1 (en) 2004-10-28
WO2004025138A1 (fr) 2004-03-25
DE10241246B4 (de) 2005-02-10

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