FR2591986A1 - Steering linkage gear with a rack and control rods combined with a linking device, especially for wheels with elastic suspension struts - Google Patents
Steering linkage gear with a rack and control rods combined with a linking device, especially for wheels with elastic suspension struts Download PDFInfo
- Publication number
- FR2591986A1 FR2591986A1 FR8518946A FR8518946A FR2591986A1 FR 2591986 A1 FR2591986 A1 FR 2591986A1 FR 8518946 A FR8518946 A FR 8518946A FR 8518946 A FR8518946 A FR 8518946A FR 2591986 A1 FR2591986 A1 FR 2591986A1
- Authority
- FR
- France
- Prior art keywords
- rack
- control rods
- steering
- wheels
- rods
- 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.)
- Pending
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/07—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the damper being connected to the stub axle and the spring being arranged around the damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
TIMONERIE DE DIRECTION A CREMAILLERE ET A BIELLES DE
COMMANDE ASSOCIEES A UN DISPOSITIF DE LIAISON, NOTAMMENT
POUR ROUES A JAMBES DE FORCE ELASTIQUES DE SUSPENSION.STEERING WHEELHOLE WITH RACK AND CONNECTING RODS
CONTROL ASSOCIATED WITH A LINKING DEVICE, IN PARTICULAR
FOR WHEELS WITH ELASTIC SUSPENSION FORCE LEGS.
L'invention concerne une timonerie de direction à crémaillère et à bielles de commande associées à un dispositif de liaison agissant par poussée et traction sur lesdites bielles et qui est reliéà la crémaillère de manière à transmettre les mouvements de celle-ci à un levier d1 orientation du porte-fusée d' une directrice.The invention relates to a steering wheel rack and control rods associated with a connecting device acting by push and pull on said rods and which is connected to the rack so as to transmit the movements of the latter to an orientation lever. of a director's knuckle.
La publication FR-A 1 135 909 décrit une telle timonerie dans laquelle les organes transversaux tels que la crémaillère sont disposés à un niveau relativement bas. Les mécanismes de direction utilisant une telle timonerie possèdent des bielles de commande montées aux extrémités d' un organe de liaison disposé plus ou moins en dessous de la crémaillère.The publication FR-A 1 135 909 describes such a wheelhouse in which the transverse members such as the rack are arranged at a relatively low level. Steering mechanisms using such a wheelhouse have control rods mounted at the ends of a connecting member disposed more or less below the rack.
Ce type de mécanisme s' adapte facilement aux véhicules dans lesquels le groupe moto-propulseur est disposé transversalement par rapport à l'axe longitudinal du véhicule.This type of mechanism easily adapts to vehicles in which the powertrain is arranged transversely to the longitudinal axis of the vehicle.
Par contre lorsque le groupe moto-propulseur est disposé selon -1' axe longitudinal du véhicule les organes transversaux de commande de direction sont disposés à un niveau relativement élevé, si bien que les bielles de commande sensiblement plus longues ne peuvent plus être reliées aux leviers d' orientation du porte-fusée. I1 a alors été proposé de relier chaque bielle à un levier de direction rapporté sur le porte-fusée disposé à un niveau sensiblement plus élevé que l'axe de la fusée.On the other hand, when the powertrain is arranged along the longitudinal axis of the vehicle, the transverse direction control members are arranged at a relatively high level, so that the substantially longer control rods can no longer be connected to the levers orientation of the stub axle. I1 was then proposed to connect each connecting rod to a steering lever attached to the rocket carrier disposed at a level substantially higher than the axis of the rocket.
Les timoneries précitées nécessitent la confection de portes-fusées spécifiques selon que la crémaillère de direction occupe une position plus ou moins élevée. Par ailleurs lorsque les bielles de commande sont associées par exemple à une extrémité de la crémaillère, les efforts de braquage peuvent nuire à la raideur de l'ensemble de la timonerie. The aforementioned wheelhouses require the construction of specific stub axles depending on whether the steering rack occupies a higher or lower position. Furthermore, when the control rods are associated for example with one end of the rack, the steering forces can harm the stiffness of the entire wheelhouse.
L'invention a pour but de remédier aux inconvénients précités dans le but de favoriser la standardisation des portes-fusées lorsque l'implantation du dispositif de direction à crémaillère nécessite l' emploi d' organes de direction spécifiques.The invention aims to remedy the aforementioned drawbacks in order to promote the standardization of rocket carriers when the installation of the rack-and-pinion steering device requires the use of specific steering devices.
L'invention concerne également une timonerie de direction à crémaillère qui ne nécessite pas de transformation notable par suite d' une modification de l'implantation au groupe moto-propulseur.The invention also relates to a rack-and-pinion steering linkage which does not require any significant transformation as a result of a modification of the layout of the powertrain.
L'invention se rapporte plus particulièrement à une timonerie de direction à crémaillère et à bielles de commande associées à un dispositif de liaison, monté à coulissement en réponse des déplacements de la crémaillère et qui est caractérisée par le fait que chaque extrémité du dispositif de liaison est attelée à un palonnier qui est articulé sur un élément de châssis du véhicule et dont l' extrémité est fixée à la bielle de commande correspondante.The invention relates more particularly to a rack and pinion steering linkage associated with a connecting device, mounted to slide in response to movements of the rack and which is characterized in that each end of the connecting device is coupled to a lifting beam which is articulated on a chassis element of the vehicle and the end of which is fixed to the corresponding control rod.
Selon un mode de réalisation de l'invention 1' élément de châssis supportant les palonniers est constitué par une traverse de structure portant le boîtier de direction à crémaillère susceptible d' être raccordée sous la forme d' un ensemble préassemblé directement aux portes-fusées des roues du véhicule.According to one embodiment of the invention, the chassis element supporting the spreaders is constituted by a structural cross member carrying the rack-and-pinion steering unit capable of being connected in the form of an assembly preassembled directly to the rocket carriers of the vehicle wheels.
D' autres caractéristiques et avantages de l'invention ressortiront de la description d' un exemple de réalisation de la timonerie en référence au dessin annexé dont la figure est une vue en perspective d'un demi-train à lambe de force télescopique disposée entre le porte-fusée et la carrosserie. Other characteristics and advantages of the invention will emerge from the description of an exemplary embodiment of the wheelhouse with reference to the attached drawing, the figure of which is a perspective view of a half-train with a telescopic force flange disposed between the rocket carrier and bodywork.
En référence à la figure, on voit que le demi-train représenté comporte une iambe de force élastique I de suspension constituée par l' amortisseur, articulée à sa partie supérieure sur la caisse par une articulation souple non représentée et à sa partie inférieure sur un bras triangulé 8, qui porte une articulation élastique 9 mobile autour d'un axe horizontal l l. Referring to the figure, it can be seen that the half-train shown comprises an elastic strut I of suspension constituted by the shock absorber, articulated at its upper part on the body by a flexible articulation not shown and at its lower part on a triangulated arm 8, which carries an elastic articulation 9 movable about a horizontal axis l l.
La ponction suspension est assurée, dans le cas de figure, par un ressort hélicoïdal 2 en appui sur la caisse et sur une coupelle fixée à la !ambe de force l, rrais pourrait I'être également par une barre de torsion bloquée sur i' axe 11 solidarisant le bras inférieur 8 et la caisse, ou tout autre élément de suspension.The suspension puncture is ensured, in the case of figure, by a helical spring 2 resting on the body and on a cup fixed to the! Ambe of force l, rrais could also be it by a torsion bar blocked on i ' axis 11 connecting the lower arm 8 and the body, or any other suspension element.
La liaison de la roue au demi-train est opérée à l'aide d' un porte-fusée 12 dont une branche 6 est fixée rigidement au corps de l'amortisseur servant de iambe de force l. Le porte-fusée 12 porte par ailleurs un bras de guidage 7 auquel est reliée la queue d'une rotule de suspension 5 dont le boîtier est raccordé au bras de suspension transversal 8.The connection of the wheel to the half-train is effected by means of a stub axle carrier 12 of which a branch 6 is rigidly fixed to the body of the shock absorber serving as a strut i. The stub axle carrier 12 also carries a guide arm 7 to which the tail of a suspension ball joint 5 is connected, the housing of which is connected to the transverse suspension arm 8.
Le porte-fusée 12 porte egalement un levier d'orientation 14 de la roue ainsi que cela est bien connu.The stub axle 12 also carries an orientation lever 14 of the wheel as is well known.
Le levier d'orientation 14 porte une rotule de direction 15 qui lie le porte-fusée 12 au mécanisme de direction sur laquelle s' articule une bielle de commande 16 et qui est fixée de façon articulée à l'extrémité un un palonnier 17 monté à articulation à une traverse de structure 18 constitutive d' un élément du châssis du véhicule et qui porte le boîtier 25 de direction renfermant la crémaillère 24.The orientation lever 14 carries a steering ball joint 15 which connects the stub axle 12 to the steering mechanism on which is articulated a control rod 16 and which is articulated in an articulated manner at the end a lifting beam 17 mounted at articulation to a cross member of structure 18 constituting an element of the vehicle chassis and which carries the steering box 25 containing the rack 24.
Le palonnier 17 porte à deux niveaux différents situés de part et d'autre de son axe de rotation 20 sur la traverse 18 deux articulations à rotule 21, 22. La rotule inférieure 21 porte la bielle 16 et la rotule supérieure 22 est liée à une barre 23 rigidement liée à la crémaillère 24 et n' ayant aucun rnouvement relatif par rapport à cette dernière.The lifter 17 carries on two different levels located on either side of its axis of rotation 20 on the cross member 18 two ball joints 21, 22. The lower ball 21 carries the rod 16 and the upper ball 22 is linked to a bar 23 rigidly linked to the rack 24 and having no relative renewal relative to the latter.
On voit ainsi que la crémaillère 24 peut être placée sans difficultés particulières à un niveau compatible avec la disposition des différents organes du châssis et que l'ensemble des organes 23, 17 et 16 remplace une biellette de direction de grande longueur dont les déplacements pourraient être gênés par certains organes du véhicule. It can thus be seen that the rack 24 can be placed without any particular difficulty at a level compatible with the arrangement of the various members of the chassis and that all of the members 23, 17 and 16 replace a very long steering rod whose displacements could be hindered by certain parts of the vehicle.
On remarque en outre que les débattements du bras inférieur 8 transversal et de la iambe de force sont sans influence sur la position de la crémaillère.It is further noted that the deflections of the transverse lower arm 8 and of the strut are without influence on the position of the rack.
Un autre avantage du dispositif réside dans le fait que l'on peut définir avec facilité la loi de variation de pincement ou d' ouverture de la roue.Another advantage of the device lies in the fact that it is possible to easily define the law of variation of toe-in or of opening of the wheel.
Il est à remarquer que la description ne décrit que la moitié du train à lambe de force élastique. L'invention porte bien entendu sur l' agencement d'un ensemble de deux bielles tels que 16 et 16' qui prolongent axialement chaque extrémité de la barre 23 et qui sont liées à celle-ci par l'intermédiaire de palonniers tels que 17. It should be noted that the description only describes half of the snub train with elastic force. The invention naturally relates to the arrangement of a set of two connecting rods such as 16 and 16 'which extend axially each end of the bar 23 and which are linked to the latter by means of spreaders such as 17.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8518946A FR2591986A1 (en) | 1985-12-20 | 1985-12-20 | Steering linkage gear with a rack and control rods combined with a linking device, especially for wheels with elastic suspension struts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8518946A FR2591986A1 (en) | 1985-12-20 | 1985-12-20 | Steering linkage gear with a rack and control rods combined with a linking device, especially for wheels with elastic suspension struts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2591986A1 true FR2591986A1 (en) | 1987-06-26 |
Family
ID=9326025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8518946A Pending FR2591986A1 (en) | 1985-12-20 | 1985-12-20 | Steering linkage gear with a rack and control rods combined with a linking device, especially for wheels with elastic suspension struts |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2591986A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2632264A1 (en) * | 1988-06-07 | 1989-12-08 | Renault | DEVICE FOR CORRECTING ROLLING SPRAY CONNECTED TO THE ELASTIC FORCE LEG OF A DIRECTION WHEEL OF A MOTOR VEHICLE |
| FR2639598A1 (en) * | 1988-11-29 | 1990-06-01 | Renault | DEVICE FOR TURNING THE REAR WHEELS OF A VEHICLE WITH FOUR STEERING WHEELS |
| EP0481622A1 (en) * | 1990-10-09 | 1992-04-22 | Ford Motor Company Limited | A steering system for a vehicle |
| DE4336286C1 (en) * | 1993-10-25 | 1995-01-26 | Daimler Benz Ag | Rack-and-pinion steering system for motor vehicles |
| US6039334A (en) * | 1997-09-29 | 2000-03-21 | Trw Steering Systems Japan Ltd. | Rack and pinion steering device |
| FR3055292A1 (en) * | 2016-08-24 | 2018-03-02 | Peugeot Citroen Automobiles Sa | TWO-FLYWHEEL VEHICLE COUPLES VIA A DASHBOARD TRAVERSE |
| FR3055293A1 (en) * | 2016-08-24 | 2018-03-02 | Peugeot Citroen Automobiles Sa | TWO-FLYWHEEL VEHICLE COUPLES VIA DIRECTION BOXES AND A DRIVING BOARD TRAVERSE |
| CN110091917A (en) * | 2019-04-09 | 2019-08-06 | 山东理工大学 | Hub motor electric vehicle with four-wheel independent steering function |
-
1985
- 1985-12-20 FR FR8518946A patent/FR2591986A1/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2632264A1 (en) * | 1988-06-07 | 1989-12-08 | Renault | DEVICE FOR CORRECTING ROLLING SPRAY CONNECTED TO THE ELASTIC FORCE LEG OF A DIRECTION WHEEL OF A MOTOR VEHICLE |
| EP0346191A1 (en) * | 1988-06-07 | 1989-12-13 | Regie Nationale Des Usines Renault | Apparatus for correcting the steering kinetics of the damping struts of a steerable vehicle wheel |
| FR2639598A1 (en) * | 1988-11-29 | 1990-06-01 | Renault | DEVICE FOR TURNING THE REAR WHEELS OF A VEHICLE WITH FOUR STEERING WHEELS |
| EP0371852A1 (en) * | 1988-11-29 | 1990-06-06 | Regie Nationale Des Usines Renault | Steering device for the rear wheels of a vehicle with four-wheel steering |
| US5033566A (en) * | 1988-11-29 | 1991-07-23 | Regie Nationale Des Usines Renault S.A. | Device for steering the rear wheels of a vehicle with four wheel steering |
| EP0481622A1 (en) * | 1990-10-09 | 1992-04-22 | Ford Motor Company Limited | A steering system for a vehicle |
| DE4336286C1 (en) * | 1993-10-25 | 1995-01-26 | Daimler Benz Ag | Rack-and-pinion steering system for motor vehicles |
| US5613572A (en) * | 1993-10-25 | 1997-03-25 | Mercedes-Benz Ag | Motor vehicle rack steering system |
| US6039334A (en) * | 1997-09-29 | 2000-03-21 | Trw Steering Systems Japan Ltd. | Rack and pinion steering device |
| FR3055292A1 (en) * | 2016-08-24 | 2018-03-02 | Peugeot Citroen Automobiles Sa | TWO-FLYWHEEL VEHICLE COUPLES VIA A DASHBOARD TRAVERSE |
| FR3055293A1 (en) * | 2016-08-24 | 2018-03-02 | Peugeot Citroen Automobiles Sa | TWO-FLYWHEEL VEHICLE COUPLES VIA DIRECTION BOXES AND A DRIVING BOARD TRAVERSE |
| CN110091917A (en) * | 2019-04-09 | 2019-08-06 | 山东理工大学 | Hub motor electric vehicle with four-wheel independent steering function |
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