EP3962760A1 - Vehicle wheel wishbone, with articulation push-fitted onto a fixing rod via a bushing - Google Patents

Vehicle wheel wishbone, with articulation push-fitted onto a fixing rod via a bushing

Info

Publication number
EP3962760A1
EP3962760A1 EP20726226.2A EP20726226A EP3962760A1 EP 3962760 A1 EP3962760 A1 EP 3962760A1 EP 20726226 A EP20726226 A EP 20726226A EP 3962760 A1 EP3962760 A1 EP 3962760A1
Authority
EP
European Patent Office
Prior art keywords
fixing rod
wheel
articulation
coupled
vehicle
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Withdrawn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
EP20726226.2A
Other languages
German (de)
French (fr)
Inventor
Philippe Giraud
Eric Courtois
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.)
PSA Automobiles SA
Original Assignee
PSA Automobiles 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 PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP3962760A1 publication Critical patent/EP3962760A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F16F1/3849—Mounting brackets therefor, e.g. stamped steel brackets; Restraining links
    • 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
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/14—Mounting of suspension arms
    • B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
    • 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
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/14—Mounting of suspension arms
    • B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
    • B60G2204/1431—Mounting of suspension arms on the vehicle body or chassis of an L-shaped arm
    • 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

  • TITLE VEHICLE WHEEL TRIANGLE, WITH ARTICULATION FITTED ON A FIXING ROD VIA A RING
  • the invention relates to vehicles, generally of the automotive type, and more specifically to the wheel wishbones (or suspension) which equip some of these vehicles.
  • certain vehicles generally of the automobile type, comprise, on the one hand, a chassis to which is coupled a front axle comprising two front right and left wheels each provided with a hub, and, on the other hand, two wheel wishbones coupled respectively to the frame and to the two hubs.
  • wheel wishbones also called wishbones or wishbones
  • the first end is intended to be coupled to the hub of a vehicle front wheel.
  • the second end is provided with a first articulation which is intended to be coupled to the chassis of the vehicle.
  • the third end comprises a fixing rod to which is coupled a second articulation which is housed for rotation in a recess of a coupling part intended to be fixedly secured to the frame.
  • the fixing rod comprises a stop which prevents the second articulation from translating, and is attached, by welding or screwing, to the third end, as described in particular in patent document WO-A-2010105340. This not only imposes to carry out an assembly operation, but also to manage stocks, transport and storage of fixing rods.
  • the attachment rod is an integral part of the main part, and a stopper, preventing the second joint from translating, is attached by welding to the non-free end of the attachment rod.
  • the fixing rod having a circular section, the immobilization of the second articulation in relation to it must be done by a press fit using a press. In addition, we are forced to perform an additional operation to weld the stop.
  • One of the aims of the invention is therefore to improve the situation.
  • a wheel (or suspension) triangle comprising a main part comprising:
  • a third end comprising a fixing rod to which is coupled a second articulation housed in rotation in a recess of a coupling part intended to be fixedly secured to the frame.
  • - It comprises a ring having a transverse section having a second shape allowing its fitting without possible rotation in this first passage, and provided with a second passage allowing its fitting without possible rotation on the fixing rod.
  • the wheel triangle according to the invention may have other characteristics which can be taken separately or in combination, and in particular:
  • the fixing rod may comprise an elongate rib defined by stamping, and may have at the level of this elongate rib a transverse section having a third shape.
  • the second passage has a transverse section having a fourth shape homologous to this third shape;
  • the elongated rib can extend into the third end
  • the fixing rod may comprise a groove defined in negative of the elongated rib and in which is partially housed an added reinforcement intended to increase the rigidity of the fixing rod;
  • the added reinforcement can, for example, be made of steel
  • the ring can, for example, be made of steel, aluminum or plastic;
  • the first and second shapes can be rectangular.
  • the invention also proposes a vehicle, optionally of the automobile type, and comprising, on the one hand, a chassis to which is coupled a front axle comprising two front right and left wheels each provided with a hub, and, on the other hand, two wheel wishbones of the type shown above and coupled respectively to the frame and to the two hubs.
  • a vehicle optionally of the automobile type, and comprising, on the one hand, a chassis to which is coupled a front axle comprising two front right and left wheels each provided with a hub, and, on the other hand, two wheel wishbones of the type shown above and coupled respectively to the frame and to the two hubs.
  • FIG. 1 schematically illustrates an embodiment of a triangle wheel according to the invention, during assembly.
  • the aim of the invention is in particular to provide a triangle wheel (or suspension) TR intended to equip a vehicle, and with A2 articulation
  • the triangle wheel (or suspension) TR is intended to equip a vehicle of the automotive type, such as a car, for example.
  • the invention is not limited to this type of land vehicle. Indeed, the invention relates to any type of land vehicle comprising a chassis to which is coupled a front axle comprising two front right and left wheels each provided with a hub to be coupled to a wheel triangle, itself coupled. to the chassis.
  • a wheel triangle TR comprises, once assembled, at least one main part PP, a ball joint LR, first A1 and second A2 joints, a coupling part PC, a fixing rod TF and a BA ring.
  • the main PP part has a generally triangular shape, hence the name wheel triangle, and therefore includes first E1, second E2 and third E3 ends. It is for example made of metal, such as for example a steel. Furthermore, it is preferably carried out by
  • the first end E1 is intended to be coupled to a hub of a wheel of a vehicle.
  • a ball joint LR which is attached, for example by screwing, as illustrated without limitation in FIG. 1.
  • the second end E2 is provided with the first articulation A1, which is intended to be coupled to the chassis of the vehicle.
  • this first articulation A1 can comprise a cylinder of the silentbloc® type of rubber (possibly synthetic) or of plastic. It will be noted that the first articulation A1 can be secured to the second end E2 directly, or indirectly via a fastening part which is attached under the latter (E2).
  • the third end E3 comprises a flattened TF attachment rod to which the second articulation A2 is coupled. It will be understood that the fixing rod TF is an integral part of the main part PP, of which it extends the third end E3.
  • the second articulation A2 is housed for rotation in a recess EA (adapted for this purpose) of the coupling part PC, which is intended to be fixedly secured to the chassis of the vehicle, for example by screwing.
  • this second articulation A2 comprises a first passage P1 which has a transverse section having a first non-circular shape (to prevent rotation).
  • This second articulation A2 has a cylindrical shape so as to be able to rotate in a cylindrical-shaped recess EA of the coupling part PC. It can, for example, be of the rubber silentbloc® type
  • the PC coupling part can, for example, be made of metal. Thus, it can, for example, be made of aluminum or steel.
  • This PC coupling part may, for example, be in the form of a hollow cylinder with a lateral tab allowing it to be fixed to a part of the frame, as illustrated without limitation in FIG. 1.
  • the ring BA has a transverse section which has a second shape allowing it to be fitted without possible rotation in the first passage P1 of the second articulation A2.
  • this BA ring is provided with a second passage P2 which allows it to be fitted without possible rotation on the fixing rod TF.
  • the BA ring cannot be rotated relative to the fixing rod TF because the latter (TF) is flattened, and the second joint A2 cannot be rotated relative to the BA ring, the second articulation A2 cannot therefore be rotated relative to the fixing rod TF.
  • TF fixing rod
  • the main part PP is stamped so as to have raised peripheral edges RP and extending to an ET end (not free) of the fixing rod TF in order to define an anti-translation stop. for the BA ring and the second A2 joint. This advantageously avoids having to attach an anti-translation stopper at the ET end by welding.
  • the anti-translation stop thus defined by the free ends of the two peripheral flanges RP, is in fact produced during the stamping operation of the main part PP.
  • the fixing rod TF can comprise an elongate rib NL defined by stamping.
  • This elongated NL rib is intended to increase the rigidity of the fixing rod TF and the retention (anti-rotation) of the BA ring.
  • the fixing rod TF has at the level of this elongated rib NL a transverse section having a third shape
  • the second passage P2 of the ring BA has a transverse section which has a fourth shape homologous to this third shape.
  • the third and fourth forms being homologous (that is to say substantially identical), the retention (anti-rotation) of the BA ring relative to the TF fixing rod is further increased.
  • the elongated rib NL in order to further reinforce the rigidity of the fixing rod TF, it is advantageous for the elongated rib NL to extend into the third end E3, as illustrated without limitation in FIG. 1.
  • the fixing rod TF can comprise a groove defined in negative of the elongate rib NL and in which is partially housed an added reinforcement which is intended to increase the rigidity. of the fixing rod TF.
  • this added reinforcement can be made of steel.
  • this added reinforcement can, for example, be secured to the fixing rod TF by welding or gluing.
  • the BA ring can, for example, be made of steel, aluminum or plastic. It will also be noted, as illustrated without limitation in FIG. 1, that the first and second shapes, of the cross sections respectively of the first passage P1 and of the ring BA, can, for example, be rectangular. But other cheeses preventing rotation can be considered.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A wishbone (TR) comprises a main component (PP) comprising a first end (E1) coupled to the hub of a wheel of a vehicle, a second end (E2) equipped with a first articulation (A1) coupled to the chassis of the vehicle, and a third end (E3) comprising a flattened fixing rod (TF) and to which there is coupled are second articulation (A2) housed with the ability to rotate in a recess (EA) of a coupling component (PC) securely attached to the chassis. This second articulation (A2) comprises a first passage (P1) having a cross section of a first non-circular shape, and into which there is push-fitted without the possibility of rotating a bushing (BA) equipped with a second passage (P2) that allows it to be push-fitted without the possibility of rotating onto the fixing rod (TF).

Description

DESCRIPTION DESCRIPTION
TITRE : TRIANGLE DE ROUE DE VÉHICULE, À ARTICULATION EMMANCHÉE SUR UNE TIGE DE FIXATION VIA UNE BAGUE TITLE: VEHICLE WHEEL TRIANGLE, WITH ARTICULATION FITTED ON A FIXING ROD VIA A RING
La présente invention revendique la priorité de la demande française 1904551 déposée le 30.04.2019 dont le contenu (texte, dessins et revendications) est ici incorporé par référence. The present invention claims the priority of French application 1904551 filed on 04/30/2019, the content of which (text, drawings and claims) is incorporated here by reference.
Domaine technique de l’invention Technical field of the invention
L’invention concerne les véhicules, généralement de type automobile, et plus précisément les triangles de roue (ou de suspension) qui équipent certains de ces véhicules. The invention relates to vehicles, generally of the automotive type, and more specifically to the wheel wishbones (or suspension) which equip some of these vehicles.
Etat de la technique State of the art
Comme le sait l’homme de l’art, certains véhicules, généralement de type automobile, comprennent, d’une part, un châssis auquel est couplé un train avant comportant deux roues avant droite et gauche munies chacune d’un moyeu, et, d’autre part, deux triangles de roue couplés respectivement au châssis et aux deux moyeux. As a person skilled in the art knows, certain vehicles, generally of the automobile type, comprise, on the one hand, a chassis to which is coupled a front axle comprising two front right and left wheels each provided with a hub, and, on the other hand, two wheel wishbones coupled respectively to the frame and to the two hubs.
Ces triangles de roue (également appelés triangles de suspension ou bras de suspension) comprennent une pièce principale ayant généralement trois extrémités. La première extrémité est destinée à être couplée au moyeu d’une roue avant de véhicule. La deuxième extrémité est munie d’une première articulation qui est destinée à être couplée au châssis du véhicule. La troisième extrémité comprend une tige de fixation à laquelle est couplée une seconde articulation qui est logée à rotation dans un évidement d’une pièce de couplage destinée à être solidarisée fixement au châssis. These wheel wishbones (also called wishbones or wishbones) consist of a main part usually having three ends. The first end is intended to be coupled to the hub of a vehicle front wheel. The second end is provided with a first articulation which is intended to be coupled to the chassis of the vehicle. The third end comprises a fixing rod to which is coupled a second articulation which is housed for rotation in a recess of a coupling part intended to be fixedly secured to the frame.
Dans certains triangles de roue la tige de fixation comprend une butée qui empêche la seconde articulation de se translater, et est rapportée, par soudage ou vissage, sur la troisième extrémité, comme décrit notamment dans le document brevet WO-A-2010105340. Cela impose non seulement de réaliser une opération d’assemblage, mais également de gérer les stocks, le transport et le stockage des tiges de fixation. In certain wheel triangles, the fixing rod comprises a stop which prevents the second articulation from translating, and is attached, by welding or screwing, to the third end, as described in particular in patent document WO-A-2010105340. This not only imposes to carry out an assembly operation, but also to manage stocks, transport and storage of fixing rods.
Dans certains autres triangles de roue la tige de fixation fait partie intégrante de la pièce principale, et une butée, empêchant la seconde articulation de se translater, est rapportée par soudage à l’extrémité non libre de la tige de fixation. La tige de fixation ayant une section circulaire, l’immobilisation de la seconde articulation par rapport à elle doit se faire par un emmanchement en force au moyen d’une presse. De plus, on est contraint de réaliser une opération additionnelle pour souder la butée. In some other wheel triangles the attachment rod is an integral part of the main part, and a stopper, preventing the second joint from translating, is attached by welding to the non-free end of the attachment rod. The fixing rod having a circular section, the immobilization of the second articulation in relation to it must be done by a press fit using a press. In addition, we are forced to perform an additional operation to weld the stop.
L’invention a donc notamment pour but d’améliorer la situation. One of the aims of the invention is therefore to improve the situation.
Présentation de l’invention Presentation of the invention
Elle propose notamment à cet effet un triangle de roue (ou de suspension) comprenant une pièce principale comportant : For this purpose, it proposes in particular a wheel (or suspension) triangle comprising a main part comprising:
- une première extrémité destinée à être couplée à un moyeu d’une roue d’un véhicule, - a first end intended to be coupled to a hub of a vehicle wheel,
- une deuxième extrémité munie d’une première articulation destinée à être couplée à un châssis du véhicule, et - a second end provided with a first articulation intended to be coupled to a vehicle frame, and
- une troisième extrémité comprenant une tige de fixation à laquelle est couplée une seconde articulation logée à rotation dans un évidement d’une pièce de couplage destinée à être solidarisée fixement au châssis. - A third end comprising a fixing rod to which is coupled a second articulation housed in rotation in a recess of a coupling part intended to be fixedly secured to the frame.
Ce triangle de roue se caractérise par le fait : This wheel triangle is characterized by the fact:
- que sa tige de fixation est aplatie, - that its fixing rod is flattened,
- que sa seconde articulation comprend un premier passage présentant une section transverse ayant une première forme non circulaire, et - that its second articulation comprises a first passage having a transverse section having a first non-circular shape, and
- qu’il comprend une bague présentant une section transverse ayant une deuxième forme permettant son emmanchement sans rotation possible dans ce premier passage, et munie d’un second passage permettant son emmanchement sans rotation possible sur la tige de fixation. Ainsi, la bague ne peut pas être entraînée en rotation par rapport à la tige de fixation aplatie, et la seconde articulation ne peut pas être entraînée en rotation par rapport à la bague, et donc la seconde articulation ne peut pas être entraînée en rotation par rapport à la tige de fixation. - It comprises a ring having a transverse section having a second shape allowing its fitting without possible rotation in this first passage, and provided with a second passage allowing its fitting without possible rotation on the fixing rod. Thus, the ring cannot be rotated relative to the flattened fixing rod, and the second hinge cannot be rotated relative to the ring, and therefore the second hinge cannot be rotated by compared to the fixing rod.
Le triangle de roue selon l’invention peut comporter d’autres caractéristiques qui peuvent être prises séparément ou en combinaison, et notamment : The wheel triangle according to the invention may have other characteristics which can be taken separately or in combination, and in particular:
- sa pièce principale peut être emboutie afin de présenter des rebords périphériques relevés et s’étendant jusqu’à une extrémité de la tige de fixation afin de définir une butée anti-translation pour la bague et la seconde articulation ; - Its main part can be stamped in order to present raised peripheral edges and extending to one end of the fixing rod in order to define an anti-translation stop for the ring and the second articulation;
- la tige de fixation peut comprendre une nervure longiligne définie par emboutissage, et peut présenter au niveau de cette nervure longiligne une section transverse ayant une troisième forme. Dans ce cas, le second passage présente une section transverse ayant une quatrième forme homologue à cette troisième forme ; - The fixing rod may comprise an elongate rib defined by stamping, and may have at the level of this elongate rib a transverse section having a third shape. In this case, the second passage has a transverse section having a fourth shape homologous to this third shape;
- la nervure longiligne peut se prolonger dans la troisième extrémité ; - the elongated rib can extend into the third end;
- la tige de fixation peut comprendre une rainure définie en négatif de la nervure longiligne et dans laquelle est partiellement logé un renfort rapporté destiné à augmenter une rigidité de la tige de fixation ; - The fixing rod may comprise a groove defined in negative of the elongated rib and in which is partially housed an added reinforcement intended to increase the rigidity of the fixing rod;
- le renfort rapporté peut, par exemple, être réalisé en acier ; - The added reinforcement can, for example, be made of steel;
- la bague peut, par exemple, être réalisée en acier, en aluminium ou en plastique ; - The ring can, for example, be made of steel, aluminum or plastic;
- les première et deuxième formes peuvent être rectangulaires. - the first and second shapes can be rectangular.
L’invention propose également un véhicule, éventuellement de type automobile, et comprenant, d’une part, un châssis auquel est couplé un train avant comportant deux roues avant droite et gauche munies chacune d’un moyeu, et, d’autre part, deux triangles de roue du type de celui présenté ci- avant et couplés respectivement au châssis et aux deux moyeux. Brève description de la figure The invention also proposes a vehicle, optionally of the automobile type, and comprising, on the one hand, a chassis to which is coupled a front axle comprising two front right and left wheels each provided with a hub, and, on the other hand, two wheel wishbones of the type shown above and coupled respectively to the frame and to the two hubs. Brief description of the figure
D’autres caractéristiques et avantages de l’invention apparaîtront à l’examen de la description détaillée ci-après, et du dessin annexé, sur lequel : Other characteristics and advantages of the invention will become apparent on examination of the detailed description below, and of the accompanying drawing, in which:
[Fig. 1 ] illustre schématiquement un exemple de réalisation d’un triangle de roue selon l’invention, en cours d’assemblage. [Fig. 1] schematically illustrates an embodiment of a triangle wheel according to the invention, during assembly.
Description détaillée de l’invention Detailed description of the invention
L’invention a notamment pour but de proposer un triangle de roue (ou de suspension) TR destiné à équiper un véhicule, et à articulation A2 The aim of the invention is in particular to provide a triangle wheel (or suspension) TR intended to equip a vehicle, and with A2 articulation
emmanchée sur sa tige de fixation TF via une bague BA. fitted on its TF fixing rod via a BA ring.
Dans ce qui suit, on considère, à titre d’exemple non limitatif, que le triangle de roue (ou de suspension) TR est destiné à équiper un véhicule de type automobile, comme par exemple une voiture. Mais l’invention n’est pas limitée à ce type de véhicule terrestre. En effet, l’invention concerne n’importe quel type de véhicule terrestre comprenant un châssis auquel est couplé un train avant comportant deux roues avant droite et gauche munies chacune d’un moyeu devant être couplé à un triangle de roue, lui-même couplé au châssis. In what follows, it is considered, by way of nonlimiting example, that the triangle wheel (or suspension) TR is intended to equip a vehicle of the automotive type, such as a car, for example. But the invention is not limited to this type of land vehicle. Indeed, the invention relates to any type of land vehicle comprising a chassis to which is coupled a front axle comprising two front right and left wheels each provided with a hub to be coupled to a wheel triangle, itself coupled. to the chassis.
On a schématiquement illustré sur la figure 1 un exemple de réalisation d’un triangle de roue TR selon l’invention, en cours d’assemblage. Is schematically illustrated in Figure 1 an embodiment of a wheel triangle TR according to the invention, during assembly.
Comme illustré, un triangle de roue TR, selon l’invention, comprend, une fois assemblé, au moins une pièce principale PP, une liaison rotule LR, des première A1 et seconde A2 articulations, une pièce de couplage PC, une tige de fixation TF et une bague BA. As illustrated, a wheel triangle TR, according to the invention, comprises, once assembled, at least one main part PP, a ball joint LR, first A1 and second A2 joints, a coupling part PC, a fixing rod TF and a BA ring.
La pièce principale PP a une forme générale triangulaire, d’où l’appellation triangle de roue, et donc comprend des première E1 , deuxième E2 et troisième E3 extrémités. Elle est par exemple réalisée en métal, comme par exemple un acier. Par ailleurs, elle est de préférence réalisée par The main PP part has a generally triangular shape, hence the name wheel triangle, and therefore includes first E1, second E2 and third E3 ends. It is for example made of metal, such as for example a steel. Furthermore, it is preferably carried out by
emboutissage pour une raison que l’on comprendra plus loin. La première extrémité E1 est destinée à être couplée à un moyeu d’une roue d’un véhicule. Elle comprend à cet effet une liaison rotule LR qui est rapportée, par exemple par vissage, comme illustré non limitativement sur la figure 1. stamping for a reason that will be understood later. The first end E1 is intended to be coupled to a hub of a wheel of a vehicle. For this purpose it comprises a ball joint LR which is attached, for example by screwing, as illustrated without limitation in FIG. 1.
La deuxième extrémité E2 est munie de la première articulation A1 , laquelle est destinée à être couplée au châssis du véhicule. Par exemple, cette première articulation A1 peut comprendre un cylindre de type silentbloc® en caoutchouc (éventuellement synthétique) ou en matière plastique. On notera que la première articulation A1 peut être solidarisée à la deuxième extrémité E2 directement, ou indirectement via une pièce de fixation qui est rapportée sous cette dernière (E2). The second end E2 is provided with the first articulation A1, which is intended to be coupled to the chassis of the vehicle. For example, this first articulation A1 can comprise a cylinder of the silentbloc® type of rubber (possibly synthetic) or of plastic. It will be noted that the first articulation A1 can be secured to the second end E2 directly, or indirectly via a fastening part which is attached under the latter (E2).
La troisième extrémité E3 comprend une tige de fixation TF aplatie et à laquelle est couplée la seconde articulation A2. On comprendra que la tige de fixation TF fait partie intégrante de la pièce principale PP dont elle prolonge la troisième extrémité E3. The third end E3 comprises a flattened TF attachment rod to which the second articulation A2 is coupled. It will be understood that the fixing rod TF is an integral part of the main part PP, of which it extends the third end E3.
La seconde articulation A2 est logée à rotation dans un évidement EA (adapté à cet effet) de la pièce de couplage PC, laquelle est destinée à être solidarisée fixement au châssis du véhicule, par exemple par vissage. De plus, cette seconde articulation A2 comprend un premier passage P1 qui présente une section transverse ayant une première forme non circulaire (pour empêcher la rotation). The second articulation A2 is housed for rotation in a recess EA (adapted for this purpose) of the coupling part PC, which is intended to be fixedly secured to the chassis of the vehicle, for example by screwing. In addition, this second articulation A2 comprises a first passage P1 which has a transverse section having a first non-circular shape (to prevent rotation).
Cette seconde articulation A2 présente une forme cylindrique afin de pouvoir tourner dans un évidement EA de forme cylindrique de la pièce de couplage PC. Elle peut, par exemple, être de type silentbloc® en caoutchouc This second articulation A2 has a cylindrical shape so as to be able to rotate in a cylindrical-shaped recess EA of the coupling part PC. It can, for example, be of the rubber silentbloc® type
(éventuellement synthétique) ou en matière plastique. (possibly synthetic) or plastic.
La pièce de couplage PC peut, par exemple, être réalisée en métal. Ainsi, elle peut, par exemple, être en aluminium ou en acier. Cette pièce de couplage PC peut, par exemple, se présenter sous la forme d’un cylindre évidé avec une patte latérale permettant sa fixation sur une partie du châssis, comme illustré non limitativement sur la figure 1. La bague BA présente une section transverse qui a une deuxième forme permettant son emmanchement sans rotation possible dans le premier passage P1 de la seconde articulation A2. De plus, cette bague BA est munie d’un second passage P2 qui permet son emmanchement sans rotation possible sur la tige de fixation TF. The PC coupling part can, for example, be made of metal. Thus, it can, for example, be made of aluminum or steel. This PC coupling part may, for example, be in the form of a hollow cylinder with a lateral tab allowing it to be fixed to a part of the frame, as illustrated without limitation in FIG. 1. The ring BA has a transverse section which has a second shape allowing it to be fitted without possible rotation in the first passage P1 of the second articulation A2. In addition, this BA ring is provided with a second passage P2 which allows it to be fitted without possible rotation on the fixing rod TF.
La bague BA ne pouvant pas être entraînée en rotation par rapport à la tige de fixation TF du fait que cette dernière (TF) est aplatie, et la seconde articulation A2 ne pouvant pas être entraînée en rotation par rapport à la bague BA, la seconde articulation A2 ne peut donc pas être entraînée en rotation par rapport à la tige de fixation TF. En outre, on n’a plus besoin de prévoir une opération de soudage pour solidariser fixement la tige de fixation à la pièce principale, ou des moyens d’immobilisation de la seconde articulation par rapport à la tige de fixation. The BA ring cannot be rotated relative to the fixing rod TF because the latter (TF) is flattened, and the second joint A2 cannot be rotated relative to the BA ring, the second articulation A2 cannot therefore be rotated relative to the fixing rod TF. In addition, there is no longer any need to provide a welding operation to firmly secure the fixing rod to the main part, or means for immobilizing the second articulation with respect to the fixing rod.
Comme évoqué précédemment, il est avantageux que la pièce principale PP soit emboutie afin de présenter des rebords périphériques RP relevés et s’étendant jusqu’à une extrémité ET (non libre) de la tige de fixation TF afin de définir une butée anti-translation pour la bague BA et la seconde articulation A2. Ainsi, on évite avantageusement d’avoir à rapporter par soudage une butée anti-translation au niveau de l’extrémité ET. La butée anti-translation, ainsi définie par les extrémités libres des deux rebords périphériques RP, est en effet réalisée pendant l’opération d’emboutissage de la pièce principale PP. As mentioned above, it is advantageous for the main part PP to be stamped so as to have raised peripheral edges RP and extending to an ET end (not free) of the fixing rod TF in order to define an anti-translation stop. for the BA ring and the second A2 joint. This advantageously avoids having to attach an anti-translation stopper at the ET end by welding. The anti-translation stop, thus defined by the free ends of the two peripheral flanges RP, is in fact produced during the stamping operation of the main part PP.
Par exemple, et comme illustré non limitativement sur la figure 1 , la tige de fixation TF peut comprendre une nervure longiligne NL définie par emboutissage. Cette nervure longiligne NL est destinée à augmenter la rigidité de la tige de fixation TF et la retenue (anti-rotation) de la bague BA. Dans ce cas, la tige de fixation TF présente au niveau de cette nervure longiligne NL une section transverse ayant une troisième forme, et le second passage P2 de la bague BA présente une section transverse qui a une quatrième forme homologue à cette troisième forme. Les troisième et quatrième formes étant homologues (c’est-à-dire sensiblement identiques), la retenue (anti-rotation) de la bague BA par rapport à la tige de fixation TF s’en trouve encore accrue. For example, and as illustrated without limitation in FIG. 1, the fixing rod TF can comprise an elongate rib NL defined by stamping. This elongated NL rib is intended to increase the rigidity of the fixing rod TF and the retention (anti-rotation) of the BA ring. In this case, the fixing rod TF has at the level of this elongated rib NL a transverse section having a third shape, and the second passage P2 of the ring BA has a transverse section which has a fourth shape homologous to this third shape. The third and fourth forms being homologous (that is to say substantially identical), the retention (anti-rotation) of the BA ring relative to the TF fixing rod is further increased.
On notera qu’afin de renforcer encore plus la rigidité de la tige de fixation TF, il est avantageux que la nervure longiligne NL se prolonge dans la troisième extrémité E3, comme illustré non limitativement sur la figure 1. It will be noted that in order to further reinforce the rigidity of the fixing rod TF, it is advantageous for the elongated rib NL to extend into the third end E3, as illustrated without limitation in FIG. 1.
On notera également, bien que cela n’apparaisse pas sur la figure 1 , que la tige de fixation TF peut comprendre une rainure définie en négatif de la nervure longiligne NL et dans laquelle est partiellement logé un renfort rapporté qui est destiné à augmenter la rigidité de la tige de fixation TF. Par exemple, ce renfort rapporté peut être réalisé en acier. Par ailleurs, ce renfort rapporté peut, par exemple, être solidarisé à la tige de fixation TF par soudage ou collage. It will also be noted, although this does not appear in FIG. 1, that the fixing rod TF can comprise a groove defined in negative of the elongate rib NL and in which is partially housed an added reinforcement which is intended to increase the rigidity. of the fixing rod TF. For example, this added reinforcement can be made of steel. Furthermore, this added reinforcement can, for example, be secured to the fixing rod TF by welding or gluing.
On notera également que la bague BA peut, par exemple, être réalisée en acier, en aluminium ou en plastique. On notera également, comme illustré non limitativement sur la figure 1 , que les première et deuxième formes, des sections transverses respectivement du premier passage P1 et de la bague BA, peuvent, par exemple, être rectangulaires. Mais d’autres fromes empêchant la rotation peuvent être envisagées. It will also be noted that the BA ring can, for example, be made of steel, aluminum or plastic. It will also be noted, as illustrated without limitation in FIG. 1, that the first and second shapes, of the cross sections respectively of the first passage P1 and of the ring BA, can, for example, be rectangular. But other cheeses preventing rotation can be considered.

Claims

REVENDICATIONS
1. Triangle de roue (TR) comprenant une pièce principale (PP) comportant une première extrémité (E1 ) destinée à être couplée à un moyeu d’une roue d’un véhicule, une deuxième extrémité (E2) munie d’une première articulation (A1 ) destinée à être couplée à un châssis dudit véhicule, et une troisième extrémité (E3) comprenant une tige de fixation (TF) à laquelle est couplée une seconde articulation (A2) logée à rotation dans un évidement (EA) d’une pièce de couplage (PC) destinée à être solidarisée fixement audit châssis, caractérisé en ce que ladite tige de fixation (TF) est aplatie, en ce que ladite seconde articulation (A2) comprend un premier passage (P1 ) présentant une section transverse ayant une première forme non circulaire, et en ce qu’il comprend une bague (BA) présentant une section transverse ayant une deuxième forme permettant son emmanchement sans rotation possible dans ledit premier passage (P1 ), et munie d’un second passage (P2) permettant son emmanchement sans rotation possible sur ladite tige de fixation (TF). 1. Wheel triangle (TR) comprising a main part (PP) comprising a first end (E1) intended to be coupled to a hub of a wheel of a vehicle, a second end (E2) provided with a first articulation (A1) intended to be coupled to a frame of said vehicle, and a third end (E3) comprising a fixing rod (TF) to which is coupled a second articulation (A2) housed for rotation in a recess (EA) of a coupling piece (PC) intended to be fixedly secured to said frame, characterized in that said fixing rod (TF) is flattened, in that said second articulation (A2) comprises a first passage (P1) having a transverse section having a first non-circular shape, and in that it comprises a ring (BA) having a cross section having a second shape allowing it to be fitted without rotation possible in said first passage (P1), and provided with a second passage (P2) allowing its fitting without rotatio n possible on said fixing rod (TF).
2. Triangle de roue selon la revendication 1 , caractérisé en ce que ladite pièce principale (PP) est emboutie afin de présenter des rebords 2. A wheel triangle according to claim 1, characterized in that said main part (PP) is stamped in order to have edges
périphériques (RP) relevés et s’étendant jusqu’à une extrémité (ET) de ladite tige de fixation (TF) afin de définir une butée anti-translation pour ladite bague (BA) et ladite seconde articulation (A2). peripherals (RP) raised and extending to one end (ET) of said fixing rod (TF) to define an anti-translation stop for said ring (BA) and said second joint (A2).
3. Triangle de roue selon la revendication 1 ou 2, caractérisé en ce que ladite tige de fixation (TF) comprend une nervure longiligne (NL) définie par emboutissage, et présente au niveau de cette nervure longiligne (NL) une section transverse ayant une troisième forme, et en ce que ledit second passage (P2) présente une section transverse ayant une quatrième forme homologue à ladite troisième forme. 3. A wheel triangle according to claim 1 or 2, characterized in that said fixing rod (TF) comprises an elongated rib (NL) defined by stamping, and has at the level of this elongated rib (NL) a transverse section having a third shape, and in that said second passage (P2) has a transverse section having a fourth shape homologous to said third shape.
4. Triangle de roue selon la revendication 3, caractérisé en ce que ladite nervure longiligne (NL) se prolonge dans ladite troisième extrémité (E3). 4. A wheel triangle according to claim 3, characterized in that said elongated rib (NL) extends into said third end (E3).
5. Triangle de roue selon la revendication 4, caractérisé en ce que ladite tige de fixation (TF) comprend une rainure définie en négatif de ladite nervure longiligne (NL) et dans laquelle est partiellement logé un renfort rapporté destiné à augmenter une rigidité de ladite tige de fixation (TF). 5. A wheel triangle according to claim 4, characterized in that said fixing rod (TF) comprises a groove defined in negative of said elongated rib (NL) and in which is partially housed an added reinforcement intended to increase a rigidity of said. fixing rod (TF).
6. Triangle de roue selon la revendication 5, caractérisé en ce que ledit renfort rapporté est réalisé en acier. 6. A wheel triangle according to claim 5, characterized in that said added reinforcement is made of steel.
7. Triangle de roue selon l’une des revendications 1 à 6, caractérisé en ce que ladite bague (BA) est réalisée en acier, en aluminium ou en plastique. 7. A wheel triangle according to one of claims 1 to 6, characterized in that said ring (BA) is made of steel, aluminum or plastic.
8. Triangle de roue selon l’une des revendications 1 à 7, caractérisé en ce que lesdites première et deuxième formes sont rectangulaires. 8. A wheel triangle according to one of claims 1 to 7, characterized in that said first and second shapes are rectangular.
9. Véhicule comprenant un châssis auquel est couplé un train avant comportant deux roues avant droite et gauche munies chacune d’un moyeu, caractérisé en ce qu’il comprend en outre deux triangles de roue (TR) selon l’une des revendications précédentes, couplés respectivement audit châssis et auxdits moyeux. 9. Vehicle comprising a frame to which is coupled a front axle comprising two front right and left wheels each provided with a hub, characterized in that it further comprises two wheel triangles (TR) according to one of the preceding claims, respectively coupled to said frame and to said hubs.
10. Véhicule selon la revendication 9, caractérisé en ce qu’il est de type automobile. 10. Vehicle according to claim 9, characterized in that it is of the automotive type.
EP20726226.2A 2019-04-30 2020-03-17 Vehicle wheel wishbone, with articulation push-fitted onto a fixing rod via a bushing Withdrawn EP3962760A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1904551A FR3095613A1 (en) 2019-04-30 2019-04-30 VEHICLE WHEEL TRIANGLE, WITH ARTICULATION FITTED ON A FIXING ROD VIA A BUSH
PCT/FR2020/050577 WO2020221974A1 (en) 2019-04-30 2020-03-17 Vehicle wheel wishbone, with articulation push-fitted onto a fixing rod via a bushing

Publications (1)

Publication Number Publication Date
EP3962760A1 true EP3962760A1 (en) 2022-03-09

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EP20726226.2A Withdrawn EP3962760A1 (en) 2019-04-30 2020-03-17 Vehicle wheel wishbone, with articulation push-fitted onto a fixing rod via a bushing

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EP (1) EP3962760A1 (en)
CN (1) CN113748031A (en)
FR (1) FR3095613A1 (en)
WO (1) WO2020221974A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2652312A1 (en) * 1989-09-28 1991-03-29 Peugeot Elastic articulation and motor vehicle suspension equipped with such an articulation
US5758896A (en) * 1995-10-27 1998-06-02 Chrysler Corporation Rubber torsion front suspension spring for lightweight motor vehicle
US6752411B2 (en) * 2002-06-24 2004-06-22 Norco Industries, Inc. Multi-stage torsion axle
DE112010001366T5 (en) 2009-03-20 2012-10-11 Magna International Inc. A vehicle wheel suspension arm / strut and method of making the same
WO2013094580A1 (en) * 2011-12-21 2013-06-27 本田技研工業株式会社 Suspension arm mounting structure
FR3041569B1 (en) * 2015-09-30 2017-10-20 Renault Sas LOWER ARM WITH FUSE REINFORCEMENT

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WO2020221974A1 (en) 2020-11-05
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