FR2691767A1 - Flexible rubber ball joint for trailing suspension arms - is made as two-part metallic shell with enlarged borders, distinct from inner tube and forced over it - Google Patents

Flexible rubber ball joint for trailing suspension arms - is made as two-part metallic shell with enlarged borders, distinct from inner tube and forced over it Download PDF

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Publication number
FR2691767A1
FR2691767A1 FR9206487A FR9206487A FR2691767A1 FR 2691767 A1 FR2691767 A1 FR 2691767A1 FR 9206487 A FR9206487 A FR 9206487A FR 9206487 A FR9206487 A FR 9206487A FR 2691767 A1 FR2691767 A1 FR 2691767A1
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FR
France
Prior art keywords
inner tube
tube
ball
ball joint
distinct
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.)
Granted
Application number
FR9206487A
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French (fr)
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FR2691767B1 (en
Inventor
Domer Michel
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.)
Hutchinson SA
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Hutchinson SA
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 Hutchinson SA filed Critical Hutchinson SA
Priority to FR9206487A priority Critical patent/FR2691767A1/en
Publication of FR2691767A1 publication Critical patent/FR2691767A1/en
Application granted granted Critical
Publication of FR2691767B1 publication Critical patent/FR2691767B1/fr
Granted legal-status Critical Current

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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
    • F16F1/393—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 with spherical or conical sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/02—Attaching arms to sprung part of vehicle
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/08—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints with resilient bearings
    • F16C11/083—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints with resilient bearings by means of parts of rubber or like materials
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/05—Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

The unit for joining of an exterior rigid tube (1) to an interior rigid tube (2) is in the form of a ball joint made of a two-piece metallic shell (4), distinct from the inner tube and with enlarged flanged edges. An elastic mass (3) joins the outer sleeve to the shell. The metallic shell is then force-fitted onto the inner tube. USE/ADVANTAGE - As a flexible rubber ball joint having axial and conical flexion used in the mounting of trailing suspension arms for motor vehicles. The inner tube can be made from thinner material which makes for a lighter unit.

Description

Dispositif de liaison élastique à rotule.Elastic ball joint connection device.

La présente invention concerne un dispositif de liaison élastique à rotule, ce dispositif étant propre à relier un tube rigide extérieur à un tube rigide intérieur, ce dernier présentant une partie en forme de rotule, une masse de matière élastique étant adhérisée entre cette partie en forme de rotule et ledit tube extérieur. The present invention relates to a ball joint elastic connection device, this device being suitable for connecting an external rigid tube to an internal rigid tube, the latter having a part in the form of a ball joint, a mass of elastic material being adhered between this part in form of ball and said outer tube.

Ces dispositifs sont utilisés dans le cas où l'on souhaite - par exemple sur des bielles de train arrière de véhicules automobiles - obtenir une articulation à forte rigidité radiale mais autorisant les grands débattements en conique (de l'ordre de + 10 ), avec éventuellement de grands ou même très grands débattements en torsion (30 ou plus). These devices are used in the case where it is desired - for example on the rear axle connecting rods of motor vehicles - to obtain an articulation with high radial rigidity but allowing large conical deflections (of the order of + 10), with possibly large or even very large torsional deflections (30 or more).

Dans une telle articulation, en outre, le tube intérieur doit être relativement épais pour pouvoir reprendre, sans risque de flambage, de déformation élastique ou d'écrasement, des efforts axiaux de serrage en bout relativement importants. In such a joint, moreover, the inner tube must be relatively thick in order to be able to resume, without risk of buckling, elastic deformation or crushing, the relatively large axial clamping forces at the end.

La partie en forme de rotule de ce tube intérieur peut être élaborée par décolletage ou matriçage, mais ceci conduit à une pièce massive et pesante, et à une dépense excessive de matière. The ball-shaped part of this inner tube can be produced by bar turning or stamping, but this leads to a massive and heavy piece, and to an excessive expenditure of material.

On peut aussi obtenir cette partie en forme de rotule par refoulage du tube intérieur, mais là encore cela ne peut être réalisé que sur un tube relativement épais pour pouvoir résister aux efforts de serrage en bout. This part can also be obtained in the form of a ball joint by pushing back the inner tube, but again this can only be achieved on a relatively thick tube in order to be able to resist the clamping forces at the end.

Le but de la présente invention est de remédier à ces inconvénients de la technique antérieure, en permettant d'utiliser un tube intérieur plus mince que les tubes qu'il est nécessaire d'utiliser avec les techniques précitées. The object of the present invention is to remedy these drawbacks of the prior art, by making it possible to use an inner tube thinner than the tubes which it is necessary to use with the abovementioned techniques.

A cet effet, un dispositif du type général défini au début est, conformément à la présente invention, caractérisé en ce que ladite partie en forme de rotule est constituée par une pièce distincte du tube intérieur, celui-ci étant droit et à section constante.  To this end, a device of the general type defined at the start is, in accordance with the present invention, characterized in that said ball-shaped part is constituted by a separate part from the inner tube, the latter being straight and of constant section.

Ainsi le tube intérieur n'assurera plus lui-même, directement, la fonction de rotule, et pourra rester intégralement sous la forme d'un tronçon de tube droit, n'ayant à subir aucune opération d'usinage, de matriçage ou de refoulage ; il pourra donc être plus mince que les tubes actuels, puisque, étant droit, il pourra mieux résister aux efforts de serrage axiaux. Thus the inner tube will no longer itself, directly, perform the function of ball joint, and may remain entirely in the form of a straight tube section, without having to undergo any machining, swaging or pressing operation. ; it can therefore be thinner than current tubes, since, being straight, it will be able to better withstand axial clamping forces.

Ladite pièce distincte, quant à elle, peut être établie de différentes manières. Said separate part, meanwhile, can be established in different ways.

Selon un premier mode de réalisation, on peut prévoir qu'elle est constituée par une coquille métallique engagée à force sur ledit tube intérieur. According to a first embodiment, it can be provided that it is constituted by a metal shell forcibly engaged on said inner tube.

Pour faciliter sa fabrication, on peut encore prévoir que ladite coquille métallique en forme de rotule est constituée de deux coupelles embouties, opposées par leur bord élargi, leur bord rétréci opposé étant engagé à force sur ledit tube intérieur. Dans ce cas, il est avantageux de prévoir que lesdits bords élargis des deux dites coupelles sont légèrement espacés l'un de l'autre, ce qui permet à la matière élastique, lors du moulage, de pénétrer également dans l'espace ménagé entre ladite pièce distincte en forme de rotule, et ledit tube intérieur, ceci renforçant la pièce. To facilitate its manufacture, it can also be provided that said metal shell in the shape of a ball joint consists of two stamped cups, opposed by their widened edge, their opposite narrowed edge being forcibly engaged on said inner tube. In this case, it is advantageous to provide that said enlarged edges of the two said cups are slightly spaced from each other, which allows the elastic material, during molding, to also penetrate into the space formed between said separate part in the shape of a ball joint, and said inner tube, this reinforcing the part.

Selon un second mode de réalisation, on peut prévoir que ladite pièce distincte en forme de rotule est constituée de matière plastique rigide. Dans ce cas, il peut être avantageux de faire en sorte que ladite pièce en matière plastique rigide soit montée de façon à pouvoir tourner sur ledit tube intérieur, ce qui permet d'obtenir un débattement illimité de l'articulation en torsion. According to a second embodiment, it can be provided that said separate ball-shaped part is made of rigid plastic. In this case, it may be advantageous to ensure that said rigid plastic part is mounted so as to be able to rotate on said inner tube, which makes it possible to obtain unlimited movement of the articulation in torsion.

On comprend qu'avec une telle articulation, quelle que soit la variante choisie, et comme dans les articulations connues du même type, la grande raideur radiale sera fournie par le fait que l'épaisseur de matière élastique est relativement réduite entre le tube extérieur et la partie la plus renflée de la rotule. Quant aux déformations en conique élevées, elles seront autorisées, là également comme dans les articulations connues, par le fait que l'épaisseur de cette matière élastique (caoutchouc ou élastomère) est naturellement plus importante à ses deux extrémités, c'està-dire de part et d'autre de la partie la plus renflée de la rotule. It is understood that with such a joint, whatever the variant chosen, and as in the known joints of the same type, the great radial stiffness will be provided by the fact that the thickness of elastic material is relatively reduced between the outer tube and the most swollen part of the patella. As for high conical deformations, they will be authorized, here as in the known joints, by the fact that the thickness of this elastic material (rubber or elastomer) is naturally greater at its two ends, that is to say of on either side of the most swollen part of the patella.

Dans les dessins ci-annexés
- les figures 1 et 2 sont des vues en coupe axiale d'articulations élastiques du type concerné, réalisées par les techniques antérieurement connues
- la figure 3 est une vue en coupe axiale d'une articulation élastique conforme à l'invention, selon un premier mode de réalisation ; et
- la figure 4 est une vue en coupe axiale d'une articulation élastique conforme à l'invention, selon un second mode de réalisation.In the attached drawings
- Figures 1 and 2 are views in axial section of elastic joints of the type concerned, produced by previously known techniques
- Figure 3 is an axial sectional view of an elastic joint according to the invention, according to a first embodiment; and
- Figure 4 is an axial sectional view of an elastic joint according to the invention, according to a second embodiment.

Sur toutes les figures, le tube rigide extérieur est référencé 1, le tube rigide intérieur 2, et la masse de matière élastique, adhérisée entre ces deux tubes, est référencée en 3. In all the figures, the external rigid tube is referenced 1, the internal rigid tube 2, and the mass of elastic material, adhered between these two tubes, is referenced in 3.

Dans la réalisation connue de la figure 1, la partie en forme de rotule 4 est obtenue par décolletage ou matri çage d'un tube épais, et dans le mode de réalisation de la figure 2 par refoulage (éventuellement avec un traitement thermique). In the known embodiment of FIG. 1, the ball-shaped part 4 is obtained by turning or forging a thick tube, and in the embodiment of FIG. 2 by upsetting (possibly with heat treatment).

Selon l'invention (figure 3) on utilise un tube intérieur 2 droit, notablement moins épais que les tubes précédents, et n'ayant subi ni usinage ni déformation pour l'obtention de la partie en forme de rotule. Cette partie est ici constituée soit par une coquille métallique mince 4 emmanchée à force sur le tube 2 (voir moitié supérieure de la figure 3), soit par deux coupelles embouties 4' opposées par leur bord élargi et serrées sur le tube 2 par leur bord rétréci. Un léger espace 5 ménagé entre ces deux coupelles permet à la matière élastique 3, lors du moulage, de pénétrer à l'intérieur des coupelles 4', en 6, ce qui renforce l'articulation (voir moitié inférieure de la figure 3). According to the invention (Figure 3) using a straight inner tube 2, significantly thinner than the previous tubes, and having undergone no machining or deformation to obtain the ball-shaped part. This part is here constituted either by a thin metal shell 4 force fitted on the tube 2 (see upper half of Figure 3), or by two stamped cups 4 'opposite by their widened edge and clamped on the tube 2 by their edge Shrunk. A slight space 5 formed between these two cups allows the elastic material 3, during molding, to penetrate inside the cups 4 ′, at 6, which strengthens the articulation (see lower half of FIG. 3).

Il est à noter que les extrémités de la coquille 4 ou des coupelles 4' sont légèrement en retrait par rapport aux extrémités du tube 2, pour ne pas gêner le serrage du tube en bout, ceci pour sa fixation dans le montage concerné. It should be noted that the ends of the shell 4 or of the cups 4 ′ are slightly set back relative to the ends of the tube 2, so as not to hinder the clamping of the tube at the end, this for its fixing in the assembly concerned.

Selon une variante de l'invention (figure 4), la pièce en forme de rotule 4 est constituée de matière plastique rigide, par exemple un polyamide, et est avantageusement montée de façon à pouvoir tourner sur le tube intérieur 2 lorsque l'on souhaite ne pas limiter les débattements en torsion. Cependant les débattements axiaux de cette pièce 4 sont limités par le fait que ses extrémités viennent à très peu de distance des extrémités du tube 2. According to a variant of the invention (Figure 4), the ball-shaped part 4 is made of rigid plastic, for example a polyamide, and is advantageously mounted so as to be able to rotate on the inner tube 2 when it is desired do not limit the torsional travel. However, the axial deflections of this part 4 are limited by the fact that its ends come very close to the ends of the tube 2.

Par ailleurs, les extrémités de la bague de matière élastique 3 sont en biseau pour constituer un joint de surface annulaire 6 assurant l'étanchéité avec la chape sur laquelle le tube est monté. Furthermore, the ends of the ring of elastic material 3 are beveled to form an annular surface seal 6 ensuring sealing with the yoke on which the tube is mounted.

Claims (6)

REVENDICATIONS 1. Dispositif de liaison élastique à rotule, propre à relier un tube rigide extérieur (1) à un tube rigide intérieur (2), ce dernier présentant une partie en forme de rotule, une masse de matière élastique (3) étant adhérisée entre cette partie en forme de rotule et ledit tube extérieur, caractérisé en ce que ladite partie en forme de rotule est constituée par une pièce (4) distincte du tube intérieur (2), celui-ci étant droit et à section constante. 1. Elastic ball-joint connection device, suitable for connecting an external rigid tube (1) to an internal rigid tube (2), the latter having a ball-shaped part, a mass of elastic material (3) being adhered between this ball-shaped part and said outer tube, characterized in that said ball-shaped part is constituted by a part (4) distinct from the internal tube (2), the latter being straight and of constant section. 2. Dispositif selon la revendication 1, caractérisé en ce que ladite pièce distincte en forme de rotule est constituée par une coquille métallique (4) engagée à force sur ledit tube intérieur. 2. Device according to claim 1, characterized in that said separate part in the shape of a ball joint is constituted by a metal shell (4) forcibly engaged on said inner tube. 3. Dispositif selon la revendication 2, caractérisé en ce que ladite coquille métallique en forme de rotule (4) est constituée de deux coupelles (4') embouties, opposées par leur bord élargi, leur bord rétréci opposé étant engagé à force sur ledit tube intérieur (2). 3. Device according to claim 2, characterized in that said ball-shaped metal shell (4) consists of two stamped cups (4 '), opposite by their widened edge, their opposite narrowed edge being force-fitted on said tube interior (2). 4. Dispositif selon la revendication 3, caractérisé en ce que lesdits bords élargis des deux dites coupelles (4') sont légèrement espacés l'un de l'autre. 4. Device according to claim 3, characterized in that said enlarged edges of the two said cups (4 ') are slightly spaced from one another. 5. Dispositif selon la revendication 1, caractérisé en ce que ladite pièce distincte en forme de rotule (4) est constituée de matière plastique rigide. 5. Device according to claim 1, characterized in that said separate ball-shaped part (4) consists of rigid plastic. 6. Dispositif selon la revendication 5, caractérisé en ce que ladite pièce en matière plastique rigide (4) est montée de façon à pouvoir tourner sur ledit tube intérieur (2).  6. Device according to claim 5, characterized in that said rigid plastic part (4) is mounted so as to be able to rotate on said inner tube (2).
FR9206487A 1992-05-27 1992-05-27 Flexible rubber ball joint for trailing suspension arms - is made as two-part metallic shell with enlarged borders, distinct from inner tube and forced over it Granted FR2691767A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9206487A FR2691767A1 (en) 1992-05-27 1992-05-27 Flexible rubber ball joint for trailing suspension arms - is made as two-part metallic shell with enlarged borders, distinct from inner tube and forced over it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9206487A FR2691767A1 (en) 1992-05-27 1992-05-27 Flexible rubber ball joint for trailing suspension arms - is made as two-part metallic shell with enlarged borders, distinct from inner tube and forced over it

Publications (2)

Publication Number Publication Date
FR2691767A1 true FR2691767A1 (en) 1993-12-03
FR2691767B1 FR2691767B1 (en) 1997-02-14

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FR9206487A Granted FR2691767A1 (en) 1992-05-27 1992-05-27 Flexible rubber ball joint for trailing suspension arms - is made as two-part metallic shell with enlarged borders, distinct from inner tube and forced over it

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0684404A1 (en) * 1994-05-27 1995-11-29 Scania CV AKTIEBOLAG Articulation arrangement for reaction rods
EP1818195A1 (en) * 2006-02-14 2007-08-15 Muhr und Bender KG Coupling rod for a stabiliser assembly
WO2010139314A1 (en) * 2009-06-04 2010-12-09 Zf Friedrichshafen Ag Joint and/or bearing assembly having an elastic intermediate layer
CN102785545A (en) * 2011-05-16 2012-11-21 日产自动车株式会社 Suspension structure, bush structure and suspension characteristic adjusting method
US8678409B2 (en) 2011-05-16 2014-03-25 Nissan Motor Co., Ltd. Suspension structure and link arranging method
CN106337891A (en) * 2016-08-31 2017-01-18 海门市宏达铁路机车车辆配件有限公司 Rubber joint for rail vehicle oil pressure damper and rubber formula thereof
US9995358B2 (en) 2016-02-04 2018-06-12 Douglas H. Powell Dual durometer flexible joint for a suspension link
CN108980245A (en) * 2018-09-06 2018-12-11 株洲时代新材料科技股份有限公司 The assemble method and motor flexural pivot of split-type motor flexural pivot
US11433725B2 (en) * 2018-10-04 2022-09-06 Mazda Motor Corporation Bushing and vehicle suspension device
EP4219964A1 (en) * 2022-01-31 2023-08-02 Jörn GmbH Ball joint, especially for vehicles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB589538A (en) * 1945-02-21 1947-06-23 Silentbloc Improvements in or relating to pivotal joints
FR1199579A (en) * 1957-03-05 1959-12-15 Metalastik Ltd Improvements to the manufacturing processes of seals and couplings
GB2155539A (en) * 1984-03-06 1985-09-25 Dunlop Ltd Improvements in or relating to flexible joints or bearings
EP0351689A1 (en) * 1988-07-16 1990-01-24 Jörn GmbH Joint assembly, especially for an axle steering device of a motor vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB589538A (en) * 1945-02-21 1947-06-23 Silentbloc Improvements in or relating to pivotal joints
FR1199579A (en) * 1957-03-05 1959-12-15 Metalastik Ltd Improvements to the manufacturing processes of seals and couplings
GB2155539A (en) * 1984-03-06 1985-09-25 Dunlop Ltd Improvements in or relating to flexible joints or bearings
EP0351689A1 (en) * 1988-07-16 1990-01-24 Jörn GmbH Joint assembly, especially for an axle steering device of a motor vehicle

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0684404A1 (en) * 1994-05-27 1995-11-29 Scania CV AKTIEBOLAG Articulation arrangement for reaction rods
EP1818195A1 (en) * 2006-02-14 2007-08-15 Muhr und Bender KG Coupling rod for a stabiliser assembly
US8647010B2 (en) 2009-06-04 2014-02-11 Zf Friedrichshafen Ag Joint and/or bearing assembly having an elastic intermediate layer
WO2010139314A1 (en) * 2009-06-04 2010-12-09 Zf Friedrichshafen Ag Joint and/or bearing assembly having an elastic intermediate layer
CN102785545A (en) * 2011-05-16 2012-11-21 日产自动车株式会社 Suspension structure, bush structure and suspension characteristic adjusting method
US8628101B2 (en) 2011-05-16 2014-01-14 Nissan Motor Co., Ltd. Suspension structure, bush structure and suspension characteristic adjusting method
EP2540534A1 (en) * 2011-05-16 2013-01-02 Nissan Motor Co., Ltd. Suspension structure, bush structure and suspension characteristic adjusting method
US8678409B2 (en) 2011-05-16 2014-03-25 Nissan Motor Co., Ltd. Suspension structure and link arranging method
CN102785545B (en) * 2011-05-16 2015-09-02 日产自动车株式会社 Suspension frame structure, bush structure and suspension performance control method
US9995358B2 (en) 2016-02-04 2018-06-12 Douglas H. Powell Dual durometer flexible joint for a suspension link
CN106337891A (en) * 2016-08-31 2017-01-18 海门市宏达铁路机车车辆配件有限公司 Rubber joint for rail vehicle oil pressure damper and rubber formula thereof
CN108980245A (en) * 2018-09-06 2018-12-11 株洲时代新材料科技股份有限公司 The assemble method and motor flexural pivot of split-type motor flexural pivot
US11433725B2 (en) * 2018-10-04 2022-09-06 Mazda Motor Corporation Bushing and vehicle suspension device
EP4219964A1 (en) * 2022-01-31 2023-08-02 Jörn GmbH Ball joint, especially for vehicles

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