FR2617921A1 - Articulation device, particularly for a suspension jack on a vehicle chassis - Google Patents

Articulation device, particularly for a suspension jack on a vehicle chassis Download PDF

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Publication number
FR2617921A1
FR2617921A1 FR8709611A FR8709611A FR2617921A1 FR 2617921 A1 FR2617921 A1 FR 2617921A1 FR 8709611 A FR8709611 A FR 8709611A FR 8709611 A FR8709611 A FR 8709611A FR 2617921 A1 FR2617921 A1 FR 2617921A1
Authority
FR
France
Prior art keywords
jack
housing
support element
buffer
articulation device
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
FR8709611A
Other languages
French (fr)
Other versions
FR2617921B1 (en
Inventor
Marcel Savoie
Francois Mounier-Poulat
Patrick Berthon
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.)
Renault Trucks SAS
Original Assignee
Renault Vehicules Industriels 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 Renault Vehicules Industriels SA filed Critical Renault Vehicules Industriels SA
Priority to FR8709611A priority Critical patent/FR2617921B1/en
Priority to FR898900196A priority patent/FR2641591B2/en
Publication of FR2617921A1 publication Critical patent/FR2617921A1/en
Application granted granted Critical
Publication of FR2617921B1 publication Critical patent/FR2617921B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F16C11/086—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 with an elastomeric member in the blind end of a socket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • B60G13/001—Arrangements for attachment of dampers
    • B60G13/003—Arrangements for attachment of dampers characterised by the mounting on the vehicle body or chassis of the damper unit
    • 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
    • F16F9/32—Details
    • F16F9/54—Arrangements for attachment
    • 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)
  • Fluid-Damping Devices (AREA)

Abstract

Articulation device, particularly for a suspension jack on a vehicle chassis of the type including a housing 11, an elastic buffer 13 placed in the said housing and a support element 14 in contact with the said buffer rigidly connected to the end of the jack, characterised by the fact that the support element 14 includes a base 15 which is connected axially by a chamfer 16 with concave curvature to a spherical bearing surface 17 surmounted by a means 18 for assembly to the end of the jack.

Description

DISPOSInF D' ARTICULATION, NOTAMMENT D' UN VERIN DE
SUSPENSION SUR UN CHASSIS DE VEHICULE
L1 invention concerne un dispositif d' articulation, notamment d' un vérin de suspension sur un châssis de véhicule du type comportant un logement, un tampon élastique placé dans ledit logement et un élément d'appui au contact dudit tampon, rigidement relié à 1' extrémité du vérin.ARTICULATION DEVICE, ESPECIALLY A CYLINDER
SUSPENSION ON A VEHICLE CHASSIS
The invention relates to an articulation device, in particular of a suspension jack on a vehicle chassis of the type comprising a housing, an elastic pad placed in said housing and a support element in contact with said pad, rigidly connected to 1 ′. end of the jack.

Lorsque la charge verticale en provenance du châssis est transmise aux roues de 1' essieu par 1' intermédiaire de vérins ainsi que 1' enseigne la publication FR-A= 85.16029 déposée au nom de la demanderesse, chaque extrémité du vérin est soumise à des oscillations en réponse aux variations de la direction de la charge. Pour satisfaire ces conditions de fonctionnement, il est connu par la publication US-A- 2 285 954 de prévoir dans le tampon élastique une dépression constitutive du logement d'une rotule fixée à 1' extrémité du vérin.When the vertical load coming from the chassis is transmitted to the wheels of the axle by means of jacks as the publication FR-A = 85.16029 teaches in the name of the applicant teaches, each end of the jack is subjected to oscillations in response to variations in the direction of the load. To satisfy these operating conditions, it is known from the publication US-A-2 285 954 to provide in the elastic buffer a depression constituting the housing of a ball joint fixed to one end of the jack.

Le problème non résolu par un tel dispositif réside dans le fait que les charges axiales génèrent un couple résistant qui s' oppose à la liberté d' oscillation exigée du vérin et une usure prématurée du tampon élastique.The problem not solved by such a device lies in the fact that the axial loads generate a resistant torque which opposes the freedom of oscillation required of the jack and premature wear of the elastic buffer.

Dans de telles conditions de fonctionnement, I' articulation ne peut supporter qu' une charge axiale limitée.In such operating conditions, the joint can only support a limited axial load.

Selon l'invention, ce problème est résolu en ce que 1' élément d'appui comporte une base qui se raccorde axialement par un chanfrein à courbure concave avec une portée sphérique surmontée d' un moyen d' assemblage avec 1' extrémité du vérin.According to the invention, this problem is solved in that the support element comprises a base which is connected axially by a chamfer with concave curvature with a spherical bearing surmounted by a means of assembly with the end of the jack.

Le dispositif ainsi réalisé peut être logé dans un volume restreint et supporter une charge élevée tout en absorbant les vibrations consécutives ou modifications de la charge.The device thus produced can be housed in a limited volume and support a high load while absorbing the consecutive vibrations or changes in the load.

D' autres caractéristiques et avantages du dispositif apparattront à la lecture de la description d' un exemple de réalisation de l'invention en référence au dessin annexé, dans lequel - la figure 1 est une représentation schématique en coupe transversale
d'une partie de 1' essieu montrant l'implantation d' un vérin de
suspension, - la figure 2 est une vue en coupe du dispositif d' articulation monté à
I' extrémité du vérin de suspension, - la figure 3 est une vue en coupe partielle de la bague de retenue du
tampon élastique.Other characteristics and advantages of the device will appear on reading the description of an exemplary embodiment of the invention with reference to the attached drawing, in which - Figure 1 is a schematic representation in cross section
of a part of the axle showing the installation of a cylinder
suspension, - Figure 2 is a sectional view of the articulation device mounted at
I 'end of the suspension cylinder, - Figure 3 is a partial sectional view of the retaining ring of
elastic pad.

En se référant à la figure 1, on voit que l'essieu I est relié, d'une part, à la roue 2 et, d' autre part, au châssis 3 introduisant sur 1' essieu une charge verticale. L'essieu 1 porte une pièce multifonctions 4 dont la partie inférieure porte deux chapes 5-6 dont 1' une 5 constitue 1' appui de la fixation du vérin 7 de suspension et dont 1' autre constitue l'appui d'une bielle de liaison longitudinale non représentée dont l'extrémité opposée est solidaire d' un support fixé au châssis 3. Le vérin 7 porte le dispositif d' articulation à chacune de ses extrémités 8-9 et transmet à la roue 2 la charge A provenant du châssis 3.Referring to Figure 1, it can be seen that the axle I is connected, on the one hand, to the wheel 2 and, on the other hand, to the chassis 3 introducing on the axle a vertical load. Axle 1 carries a multifunctional part 4, the lower part of which carries two yokes 5-6, one of which 5 constitutes the support for fixing the suspension cylinder 7 and the other of which constitutes the support of a connecting rod longitudinal link, not shown, the opposite end of which is secured to a support fixed to the chassis 3. The jack 7 carries the articulation device at each of its ends 8-9 and transmits the load A from the chassis 3 to the wheel 2 .

La figure 2 représente le dispositif d'articulation associé à l'extrémité 8 du vérin 7 mais il est bien entendu que le même dispositif peut s'appliquer à 1' extrémité 9 de ce vérin. Un élément 10 du châssis 3 comporte un logement 11 dans lequel est placée une cage 12 renfermant un tampon élastique 13 ayant les propriétés du caoutchouc. A titre d' exemple, on utilisera un matériau élastomère ou un caoutchouc de dureté shore 40. Le tampon 13 est en contact avec un élément d'appui 14 rigidement relié au moyen d'une queue vissée avec l'extrémité 8 du vérin 7. Le tampon 13 se comporte de la sorte comme un élément hydrostatique sur lequel agit une pression élevée.Dans le but d' éviter l'extrusion du tampon 13 au contact de l'élément d'appui 14, la base 15 de celui-ci se raccorde axialement par un chanfrein 16 à courbure concave avec une portée sphérique 17 surmontée de la queue d'assemblage 18 avec le vérin 7. FIG. 2 shows the articulation device associated with the end 8 of the jack 7 but it is understood that the same device can be applied to the end 9 of this jack. An element 10 of the frame 3 comprises a housing 11 in which is placed a cage 12 containing an elastic pad 13 having the properties of rubber. By way of example, an elastomeric material or a rubber of shore hardness 40 will be used. The pad 13 is in contact with a support element 14 rigidly connected by means of a screwed tail with the end 8 of the jack 7. The pad 13 behaves in this way as a hydrostatic element on which a high pressure acts. In order to avoid the extrusion of the pad 13 in contact with the support element 14, the base 15 thereof axially connected by a chamfer 16 with concave curvature with a spherical bearing surface 17 surmounted by the assembly tail 18 with the jack 7.

Dans le but d'éviter 1' extrusion du tampon élastique 13 sous l'action de la charge au contact des parois du logement 11 ou de la cage 12, on prévoit l'application d' une bague 20 au contact du chanfrein 16.In order to avoid extrusion of the elastic pad 13 under the action of the load in contact with the walls of the housing 11 or of the cage 12, provision is made for the application of a ring 20 in contact with the chamfer 16.

La figure 3 montre la section caractéristique de la bague qui possède une lèvre d'étanchéité 21 radiale en appui sur le tampon 13 et un contour extérieur conformé au logement de part et d'autre de la base 15 de I'élément d' appui 14.Figure 3 shows the characteristic section of the ring which has a radial sealing lip 21 bearing on the pad 13 and an outer contour conformed to the housing on either side of the base 15 of the support element 14 .

Le dispositif d' articulation est protégé par un soufflet d' étanchéité 25 dont les extrémités sont tespectivement immobilisées par rapport à l'élément d'appui 14 et auquel est associée une bague d'étanchéité 26 à contour intérieur sphérique au contact de la portée 17 de l'élément 14 immobilisée axialement par rapport au châssis 10 par des vis 27. The articulation device is protected by a sealing bellows 25, the ends of which are respectively immobilized with respect to the support element 14 and with which is associated a sealing ring 26 with a spherical internal contour in contact with the bearing 17 of the element 14 immobilized axially with respect to the chassis 10 by screws 27.

On conçoit donc que le contour de la bague 20 permet un glissement relatif aisé de l'élément d'appui 14 assurant de la sorte une application ferme de la bague 20 dans son logement au cours des déplacements angulaires de la ligne d' action du vérin. It is therefore understandable that the contour of the ring 20 allows easy relative sliding of the support element 14 thereby ensuring a firm application of the ring 20 in its housing during the angular displacements of the line of action of the jack .

Claims (3)

REVENDICATIONS 1/ Dispositif d'articulation, notamment d'un vérin de suspension sur un1 / Articulation device, in particular a suspension cylinder on a châssis de véhicule du type comportant un logement (11), un tampon vehicle chassis of the type comprising a housing (11), a buffer élastique (13) placé dans ledit logement et un élément d'appui (14) au elastic (13) placed in said housing and a support element (14) at the contact dudit tampon, rigidement relié à 1' extrémité du vérin, contact of said buffer, rigidly connected to one end of the jack, caractérisé par le fait que 1' élément d' appui (14) comporte une base characterized in that the support element (14) has a base (15) qui se raccorde axialement par un chanfrein (16) à courbure (15) which is connected axially by a chamfer (16) with curvature concave avec une portée (17) sphérique surmontée d'un moyen (rus)  concave with a spherical bearing (17) surmounted by a means (rus) d'assemblage avec l'extrémité du vérin. assembly with the end of the jack. extérieure d' une bague (20) de retenue du tampon élastique. outside of an elastic buffer retaining ring (20). que le chanfrein (16) de l'élément appui est adjacent à la surface that the chamfer (16) of the support element is adjacent to the surface 2/ Dispositif d'articulation selon la revendication 1, caractérisé par le fait 2 / hinge device according to claim 1, characterized in that de la paroi du logement.  of the housing wall. élément sur le tampon et d' éviter 1' extrusion de ce dernier au contact element on the tampon and avoid extrusion of the latter on contact base (15) de l'élément. d'appui (14) dans le but de positionner ledit base (15) of the element. support (14) for the purpose of positioning said logement du tampon qui s' étend axialement de part et d' autre de la buffer housing which extends axially on either side of the sur le tampon élastique (13), un contour conformé à la paroi du on the elastic pad (13), a contour conforming to the wall of the que la bague (20) possède une lèvre d' étanchéité (21) radiale en appui that the ring (20) has a radial sealing lip (21) bearing 3/ Dispositif d' articulation selon la revendication 2, caractérisé par le fait 3 / hinge device according to claim 2, characterized in that
FR8709611A 1987-07-07 1987-07-07 ARTICULATION DEVICE, ESPECIALLY A SUSPENSION CYLINDER ON A VEHICLE CHASSIS Expired - Lifetime FR2617921B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8709611A FR2617921B1 (en) 1987-07-07 1987-07-07 ARTICULATION DEVICE, ESPECIALLY A SUSPENSION CYLINDER ON A VEHICLE CHASSIS
FR898900196A FR2641591B2 (en) 1987-07-07 1989-01-10 ARTICULATION DEVICE, ESPECIALLY A SUSPENSION CYLINDER ON A VEHICLE CHASSIS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8709611A FR2617921B1 (en) 1987-07-07 1987-07-07 ARTICULATION DEVICE, ESPECIALLY A SUSPENSION CYLINDER ON A VEHICLE CHASSIS

Publications (2)

Publication Number Publication Date
FR2617921A1 true FR2617921A1 (en) 1989-01-13
FR2617921B1 FR2617921B1 (en) 1990-11-02

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FR8709611A Expired - Lifetime FR2617921B1 (en) 1987-07-07 1987-07-07 ARTICULATION DEVICE, ESPECIALLY A SUSPENSION CYLINDER ON A VEHICLE CHASSIS

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5139104A (en) * 1990-04-27 1992-08-18 Renault Vehicules Industriels Device for suspension of driver's cab in relation to chassis

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2285954A (en) * 1940-01-06 1942-06-09 Nash Kelvinator Corp Spring suspension
DE729930C (en) * 1939-06-01 1943-01-05 Fritz Faudi Self adjusting camp
FR1241657A (en) * 1958-12-03 1960-09-16 Ehrenreich & Co A Device for supporting or suspending the joints of vehicle wheels
FR1268851A (en) * 1959-10-03 1961-08-04 Ehrenreich & Cie A Ball joint in particular for the suspension of the wheels of motor vehicles
DE2264236A1 (en) * 1972-01-05 1973-07-12 Raoul Dipl Ing Joern BALL JOINT
US3857149A (en) * 1972-11-06 1974-12-31 Chrysler Corp Method of making a ball joint
FR2545168A1 (en) * 1983-04-29 1984-11-02 Lemfoerder Metallwaren Ag BALL JOINT, IN PARTICULAR ARTICULATION OF COUPLING BAR
FR2589107A1 (en) * 1985-10-29 1987-04-30 Renault Vehicules Ind AXLE-CHASSIS CONNECTION DEVICE, IN PARTICULAR FOR TWO-AXLE TANDEM INDUSTRIAL VEHICLES

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE729930C (en) * 1939-06-01 1943-01-05 Fritz Faudi Self adjusting camp
US2285954A (en) * 1940-01-06 1942-06-09 Nash Kelvinator Corp Spring suspension
FR1241657A (en) * 1958-12-03 1960-09-16 Ehrenreich & Co A Device for supporting or suspending the joints of vehicle wheels
FR1268851A (en) * 1959-10-03 1961-08-04 Ehrenreich & Cie A Ball joint in particular for the suspension of the wheels of motor vehicles
DE2264236A1 (en) * 1972-01-05 1973-07-12 Raoul Dipl Ing Joern BALL JOINT
US3857149A (en) * 1972-11-06 1974-12-31 Chrysler Corp Method of making a ball joint
FR2545168A1 (en) * 1983-04-29 1984-11-02 Lemfoerder Metallwaren Ag BALL JOINT, IN PARTICULAR ARTICULATION OF COUPLING BAR
FR2589107A1 (en) * 1985-10-29 1987-04-30 Renault Vehicules Ind AXLE-CHASSIS CONNECTION DEVICE, IN PARTICULAR FOR TWO-AXLE TANDEM INDUSTRIAL VEHICLES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5139104A (en) * 1990-04-27 1992-08-18 Renault Vehicules Industriels Device for suspension of driver's cab in relation to chassis

Also Published As

Publication number Publication date
FR2617921B1 (en) 1990-11-02

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Effective date: 20060331