FR2649171A1 - Ball joint with built-in elastic connection - Google Patents

Ball joint with built-in elastic connection Download PDF

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Publication number
FR2649171A1
FR2649171A1 FR8908681A FR8908681A FR2649171A1 FR 2649171 A1 FR2649171 A1 FR 2649171A1 FR 8908681 A FR8908681 A FR 8908681A FR 8908681 A FR8908681 A FR 8908681A FR 2649171 A1 FR2649171 A1 FR 2649171A1
Authority
FR
France
Prior art keywords
bearing
ball joint
housing
elastic
joint
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
FR8908681A
Other languages
French (fr)
Other versions
FR2649171B1 (en
Inventor
Jean-Francois Riffort
Philippe Durand
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.)
JTEKT Automotive Lyon SAS
Original Assignee
Societe de Mecanique dIrigny
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 Societe de Mecanique dIrigny filed Critical Societe de Mecanique dIrigny
Priority to FR898908681A priority Critical patent/FR2649171B1/en
Publication of FR2649171A1 publication Critical patent/FR2649171A1/en
Application granted granted Critical
Publication of FR2649171B1 publication Critical patent/FR2649171B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623—Construction or details of the socket member
    • F16C11/0652—Construction or details of the socket member combined with a damper other than elastic linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/16—Arrangement of linkage connections
    • 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
    • F16C2326/20—Land vehicles
    • F16C2326/24—Steering systems, e.g. steering rods or columns

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

Ball joint with built-in elastic connection, particularly for motor vehicle steering mechanisms, which joint includes a spherical ball 10 equipped with a shank 11 mounted so that it can pivot in a casing 12 through the use of a bearing 14 bearing on the said ball, and a connection formed by an elastic bushing 21 characterised in that the elastic bushing 21 is located outside the bearing 14 in contact with an internal wall of the casing 12 and in that the said bearing 14 is adjacent to an abutment element 25 of which an axial extension 26, which borders the bearing, has a separation with respect to a rigid wall of the casing.

Description

ARTICL > LATION A ROTULE AVEC LIAISON ELASllQUE fNCORPOREE L'invention concerne une articulation à rotule, avec liaison élastique incorporée, notamment pour mécanismes de direction de véhicules automobiles dans laquelle une rotule sphérique munie d' une tige filetée est montée pivotante dans un boitier par l'intermédiaire d' un palier en appui sur ladite rotule. The invention relates to a ball joint, with an incorporated elastic link, in particular for motor vehicle steering mechanisms in which a spherical ball joint provided with a threaded rod is pivotally mounted in a housing by the 'through a bearing pressing on said ball joint.

L' invention concerne plus particulièrement une telle articulation dans laquelle une liaison élastique constituée par un coussinet est soumise aux forces axiales exercées par un boitier et agit comme un-ressort de poussée.The invention relates more particularly to such a joint in which an elastic connection constituted by a bearing is subjected to the axial forces exerted by a housing and acts as a thrust spring.

La publication FR - A - 2.373.430 décrit une telle articulation dans laquelle la liaison est constituée par un coussinet élastique solidarisé d'une part avec une douille intérieure portant un collet à laquelle est reliée une bielle de direction, et d' autre part avec une douille extérieure portant un bord latéral rabattu reliée au boitier. Dans cette articulation 1' écartement axial du collet et du bord rabattu des douilles intérieure et extérieure permet au coussinet d' absorber les efforts axiaux appliqués àa' articulation et d' avoir une flexibilité adaptée. Lorsque Il ensemble de la liaison élastique est protégée par le boitier de 1' articulation, celui-ci nécessite 1' usinage de deux logements et ne peut être obtenu à1' aide des procédés de fabrication conventionnels.The publication FR - A - 2,373,430 describes such an articulation in which the connection is constituted by an elastic bushing secured on the one hand with an inner bushing carrying a collar to which a steering rod is connected, and on the other hand with an outer sleeve carrying a folded side edge connected to the housing. In this joint, the axial spacing of the collar and the folded edge of the inner and outer bushes allows the bearing to absorb the axial forces applied to the joint and to have an adapted flexibility. When the entire elastic connection is protected by the housing of the joint, this requires the machining of two housings and cannot be obtained using conventional manufacturing methods.

Conformément à 1' invention ce problème est résolu en ce que le coussinet élastique est disposé extérieurement au palier au contact d'une paroi intérieure du boitier et que ledit palier est adjacent à un élément de butée dont une extension axiale bordant le palier, possède un écartement par rapport à une paroi rigide du boitier.In accordance with the invention, this problem is solved in that the elastic pad is disposed outside the bearing in contact with an inner wall of the housing and that said bearing is adjacent to a stop element, an axial extension of which borders the bearing, has a spacing relative to a rigid wall of the housing.

L'articulation ainsi réalisée permet d'absorber des forces qui se produisent notamment sous la forme de chocs et d' obtenir une certaine flexibilité axiale de la biellette de direction. The joint thus produced makes it possible to absorb forces which occur in particular in the form of shocks and to obtain a certain axial flexibility of the steering rod.

L' articulation présente en outre 1' avantage de supprimer tout risque de bruits de battement du fait que ceux-ci sont amortis au niveau de la liaison élastique.The articulation also has the advantage of eliminating any risk of thumping noises because they are damped at the elastic connection.

Par ailleurs 1' articulation de construction simplifiée peut être réalisée par les moyens conventionnels.Furthermore, the simplified construction joint can be produced by conventional means.

D'autres caractéristiques et avantages de l'invention apparaitronta la lecture de la description d' un exemple de réalisation de 1' articulation en référence au dessin dans lequel :
La figure 1 est une représentation schématique d' un mécanisme de direction faisant application de 1' articulation conforme àa' l'invention. Other characteristics and advantages of the invention will appear on reading the description of an exemplary embodiment of the articulation with reference to the drawing in which:
Figure 1 is a schematic representation of a steering mechanism applying the articulation according to the invention.

La figure 2 est une vue en coupe axiale de 1' articulation conforme à 1' invention. Figure 2 is an axial sectional view of one hinge according to one invention.

La figure 3 est un diagramme représentatif de la variation de l'effort appliqué à l'articulation en fonction du déplacement.FIG. 3 is a diagram representing the variation of the force applied to the joint as a function of the displacement.

Ainsi que cela est représenté à la figure 1, l'essieu avant est représenté schématiquement par ses roues 1 dont chacune est montée sur une fusée 2 supportée par un porte-fusée 3 relié au chassis fixe du véhicule. Le porte-fusée 3 porte un bras de commande 4 sur lequel est monté l'articulation à rotule 5 conforme àa' invention destinée à être fixée à 1' extrémité d' une biellette de direction -6.As shown in Figure 1, the front axle is shown schematically by its wheels 1, each of which is mounted on a spindle 2 supported by a stub axle 3 connected to the fixed chassis of the vehicle. The stub axle 3 carries a control arm 4 on which is mounted the ball joint 5 according to the invention intended to be fixed to one end of a steering rod -6.

La figure 2 est une vue en coupe axiale de 1' articulation. Une rotule sphérique 10 destinée à être fixée sur le bras de commande 4 par l'extrémité filetée de sa tige 11 est maintenue dans un boitier 12 solidaire de la bieilette 6 mobile par rapport au bras 4.Figure 2 is an axial sectional view of one hinge. A spherical ball joint 10 intended to be fixed on the control arm 4 by the threaded end of its rod 11 is held in a housing 12 secured to the bieilette 6 movable relative to the arm 4.

La rotule 10 est poussée contre un siège 13 constitué par une portion de surface sphérique d' un palier 14 au moyen d'un ressort 15 en appui d1 un côté sur un disque de fermeture 16 tenu dans le boitier 12 par un bord annulaire 17 de celui-ci. Le boitier 12 possède à proximité du bord 17, une gorge circulaire 18 de retenue du disque 16. The ball 10 is pushed against a seat 13 consisting of a spherical surface portion of a bearing 14 by means of a spring 15 bearing on one side on a closing disc 16 held in the housing 12 by an annular edge 17 of this one. The case 12 has, near the edge 17, a circular groove 18 for retaining the disc 16.

Le boîtier 12 est formé à partir d'un élément tubulaire forgé dont les bords rabattus délimitent le logement de la rotule 10, du palier et etde la liaison élastique 20.The housing 12 is formed from a forged tubular element whose folded edges delimit the housing of the ball joint 10, of the bearing and and of the elastic connection 20.

Ln liaison élastique 20 est constituée ainsi que cela est montré à la figure 2 par un coussinet en caoutchouc 21 disposé extérieurement au palier 14 au contact d'une paroi cylindrique intérieure du boitier 12.  The elastic connection 20 is constituted as shown in FIG. 2 by a rubber pad 21 disposed outside the bearing 14 in contact with an inner cylindrical wall of the housing 12.

Dans le but de limiter la transmission des efforts communiqués par le bras de commande 4 à la biellette 6, le palier 14 est adjacent à un élément de butée 25 dont une extension axiale 26 borde le palier 14 avec un écartement axial X et radial Y par rapport à une paroi rigide du boitier 12.In order to limit the transmission of the forces communicated by the control arm 4 to the link 6, the bearing 14 is adjacent to a stop element 25 whose axial extension 26 borders the bearing 14 with an axial spacing X and radial Y by relative to a rigid wall of the housing 12.

Conformément à l'exemple décrit les parois du boitier 12 qui limitent les déplacements du palier 14 sont constitués par le disque de fermeture 16 et par la douille extérieure 23 du coussinet 21. In accordance with the example described, the walls of the housing 12 which limit the displacements of the bearing 14 are constituted by the closing disc 16 and by the external sleeve 23 of the bearing 21.

D'une manière analogue c'est la douille intérieure 22 du coussinet 21 qui reçoit les efforts communiqués par le palier 14 et est montée de ce fait avec les écartements X et Y par rapport à la douille extérieure 23.Similarly, it is the inner bush 22 of the bearing 21 which receives the forces communicated by the bearing 14 and is therefore mounted with the spacings X and Y with respect to the outer bush 23.

Cette manière de procéder autorise la confection de- l'articulation dans laquelle le coussinet élastique 21 possède une aptitude d'absorption d'efforts de poussée omnidirectionnels et des déplacements limités du palier 14.This way of proceeding allows the making of the articulation in which the elastic pad 21 has an ability to absorb omnidirectional thrust forces and limited displacements of the bearing 14.

Le diagramme de la figure 3 indique la -plage de variation de l'effort de compression du coussinet 21 en fonction des déplacements du palier 14. Le point A de la courbe correspond à la mise en butée de la douille 22. The diagram in FIG. 3 indicates the variation range of the compression force of the bearing 21 as a function of the displacements of the bearing 14. The point A of the curve corresponds to the abutment of the sleeve 22.

Claims (1)

REVENDICATIONS l Articulation à rotule avec liaison élastique incorporée, notamment pour l Ball joint with incorporated elastic connection, especially for mécanismes de direction de véhicules automobiles, qui comporte une motor vehicle steering mechanisms, which includes a rotule sphérique (10) munie d'une tige (11) montée pivotante dans un spherical ball joint (10) provided with a rod (11) pivotally mounted in a boitier (12) par l'intermédiaire d'un palier (14) en appui sur ladite case (12) by means of a bearing (14) bearing on said rotule, et une liaison formée par un coussinet élastique (21) ball joint, and a connection formed by an elastic pad (21) caractérisée par le fait que le coussinet élastique (21) est disposé characterized in that the elastic pad (21) is arranged extérieurement au palier (14) au contact d'une paroi intérieure du externally to the bearing (14) in contact with an inner wall of the boitier (12) et que ledit palier (14) est adjacent à un élément de housing (12) and that said bearing (14) is adjacent to an element of butée (25) dont une extension axiale (26) bordant le palier possède un stop (25) including an axial extension (26) bordering the bearing has a écartement par rapport à une paroi rigide du boitier. spacing relative to a rigid wall of the housing. 2-) Articulation selon la revendication 1, caractérisée par le fait que le 2-) Joint according to claim 1, characterized in that the coussinet élastique (21) est fixé intérieurement et extérieurement à elastic pad (21) is fixed internally and externally to deux douilles (22,23) respectivement disposées au contact du palier (14) two sockets (22,23) respectively arranged in contact with the bearing (14) et de la paroi du boitier (12). and the wall of the housing (12). 3.) Articulation selon 1' une quelconque des revendications I ou 2, 3.) Articulation according to any one of claims I or 2, caractérisées par le fait que 1' une des douilles (22) du coussinet characterized by the fact that one of the bushings (22) of the bearing élastiqueest montée avec un écartement axial (X) et radial (Y) dans le elastic is mounted with an axial (X) and radial (Y) spacing in the boitier (12) dans le but de permettre l'absorption des efforts de case (12) in order to allow the absorption of the forces of poussée omnidirectionnels sur la rotule et d' obtenir une certaine omnidirectional thrust on the patella and get some flexibilité axiale de la biellette de direction.  axial flexibility of the steering rod.
FR898908681A 1989-06-29 1989-06-29 BALL JOINT WITH INCORPORATED ELASTIC CONNECTION Expired - Lifetime FR2649171B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR898908681A FR2649171B1 (en) 1989-06-29 1989-06-29 BALL JOINT WITH INCORPORATED ELASTIC CONNECTION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR898908681A FR2649171B1 (en) 1989-06-29 1989-06-29 BALL JOINT WITH INCORPORATED ELASTIC CONNECTION

Publications (2)

Publication Number Publication Date
FR2649171A1 true FR2649171A1 (en) 1991-01-04
FR2649171B1 FR2649171B1 (en) 1994-09-02

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FR898908681A Expired - Lifetime FR2649171B1 (en) 1989-06-29 1989-06-29 BALL JOINT WITH INCORPORATED ELASTIC CONNECTION

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2733285A1 (en) * 1995-04-19 1996-10-25 Teledynamique Sa Retaining coupling for linkage on motor vehicle gear box
WO1999055543A2 (en) * 1998-04-23 1999-11-04 Lemförder Metallwaren Ag Rubber-cushioned ball joint with a bearing geometry which is optimized with regard to tension
EP2278178A1 (en) * 2009-07-14 2011-01-26 Fulvio Orsolini Ball joint for connecting mechanical elements
CN104895912A (en) * 2015-06-26 2015-09-09 芜湖创智机械技术有限公司 Suspension ball joint pressed into automobile

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB616938A (en) * 1945-10-22 1949-01-28 Thompson Prod Inc Improvements in or relating to universal joints
GB1360515A (en) * 1971-02-02 1974-07-17 Saitamakiki Co Ltd Ball joints
DE3032788A1 (en) * 1980-08-30 1982-04-15 Volkswagenwerk Ag, 3180 Wolfsburg Ball joint for vehicle track rod arrangement - includes bearing and assembly sections connected by elastic intermediate connection element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB616938A (en) * 1945-10-22 1949-01-28 Thompson Prod Inc Improvements in or relating to universal joints
GB1360515A (en) * 1971-02-02 1974-07-17 Saitamakiki Co Ltd Ball joints
DE3032788A1 (en) * 1980-08-30 1982-04-15 Volkswagenwerk Ag, 3180 Wolfsburg Ball joint for vehicle track rod arrangement - includes bearing and assembly sections connected by elastic intermediate connection element

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2733285A1 (en) * 1995-04-19 1996-10-25 Teledynamique Sa Retaining coupling for linkage on motor vehicle gear box
WO1999055543A2 (en) * 1998-04-23 1999-11-04 Lemförder Metallwaren Ag Rubber-cushioned ball joint with a bearing geometry which is optimized with regard to tension
WO1999055543A3 (en) * 1998-04-23 1999-12-02 Lemfoerder Metallwaren Ag Rubber-cushioned ball joint with a bearing geometry which is optimized with regard to tension
US6341915B1 (en) 1998-04-23 2002-01-29 ZF Lemförder Metallwaren AG Rubber-cushioned ball joint with a bearing geometry which is optimized with regard to tension
EP2278178A1 (en) * 2009-07-14 2011-01-26 Fulvio Orsolini Ball joint for connecting mechanical elements
CN104895912A (en) * 2015-06-26 2015-09-09 芜湖创智机械技术有限公司 Suspension ball joint pressed into automobile
CN104895912B (en) * 2015-06-26 2018-01-26 安徽东立汽车部件有限公司 One kind press-in assembly type vehicle suspension ball head

Also Published As

Publication number Publication date
FR2649171B1 (en) 1994-09-02

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