FR2712553A1 - Device for limiting angular movement of front wheel of vehicle in vertical and horizontal planes - Google Patents
Device for limiting angular movement of front wheel of vehicle in vertical and horizontal planes Download PDFInfo
- Publication number
- FR2712553A1 FR2712553A1 FR9313762A FR9313762A FR2712553A1 FR 2712553 A1 FR2712553 A1 FR 2712553A1 FR 9313762 A FR9313762 A FR 9313762A FR 9313762 A FR9313762 A FR 9313762A FR 2712553 A1 FR2712553 A1 FR 2712553A1
- Authority
- FR
- France
- Prior art keywords
- pivot
- vehicle
- arm
- wheel
- axis
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
-
- 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
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
-
- 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
- B62D7/18—Steering knuckles; King pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/10—Independent suspensions
- B60G2200/18—Multilink suspensions, e.g. elastokinematic arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/40—Indexing codes relating to the wheels in the suspensions
- B60G2200/44—Indexing codes relating to the wheels in the suspensions steerable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/40—Indexing codes relating to the wheels in the suspensions
- B60G2200/46—Indexing codes relating to the wheels in the suspensions camber angle
-
- 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
- B60G2204/148—Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
-
- 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
- B60G2204/416—Ball or spherical joints
-
- 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
- B60G2204/45—Stops limiting travel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
- B60G2206/11—Constructional features of arms the arm being a radius or track or torque or steering rod or stabiliser end link
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
- B60G2206/124—Constructional features of arms the arm having triangular or Y-shape, e.g. wishbone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/50—Constructional features of wheel supports or knuckles, e.g. steering knuckles, spindle attachments
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
L'invention est relative à un dispositif de limitation du braquage d'une roue directrice d'un véhicule. The invention relates to a device for limiting the deflection of a steering wheel of a vehicle.
Elle concerne plus particulièrement les roues portées par un support dit pivot qui est relié à la caisse du véhicule par au moins un bras oscillant approximativement horizontal, de manière à pouvoir débattre verticalement avec la roue et pivoter avec elle autour d'un axe sensiblement vertical. It relates more particularly to the wheels carried by a so-called pivot support which is connected to the vehicle body by at least one approximately horizontal oscillating arm, so as to be able to debate vertically with the wheel and pivot with it around a substantially vertical axis.
A cet effet le pivot s'articule d'une part au moyen d'une rotule sur l'extrémité libre du bras et d'autre part sur une extrémité d'un autre bras approximativement horizontal au moyen d'une seconde rotule ou sur la caisse du véhicule à l'extrémité supérieure d'une jambe télescopique solidaire du pivot. For this purpose the pivot is articulated on the one hand by means of a ball joint on the free end of the arm and on the other hand on one end of another approximately horizontal arm by means of a second ball joint or on the vehicle body at the upper end of a telescopic leg secured to the pivot.
Le pivotement du support, ou braquage de la roue, obtenu par un mécanisme direction reliant le pivot à un organe de commande, est limité par des éléments de butée pour éviter que la roue ne heurte une pièce avoisinante telle qu'un élément de la caisse et, dans le cas d'une roue motrice accouplée à un arbre d'entraînement par un joint de transmission, pour éviter de dépasser la capacité angulaire de fonctionnement de ce joint. The pivoting of the support, or turning of the wheel, obtained by a steering mechanism connecting the pivot to a control member, is limited by abutment elements to prevent the wheel from striking a neighboring part such as an element of the body and, in the case of a drive wheel coupled to a drive shaft by a transmission joint, to avoid exceeding the angular operating capacity of this joint.
Or c'est dans les positions extrêmes de débattement de la roue vers le haut, dit débattement d'attaque, que le risque de heurt susmentionné est le plus grand et que le joint de transmission est le plus sollicité. Les éléments de butée usuels sont ainsi agencés de manière à limiter le braquage à une valeur qui satisfait ces conditions exceptionnelles de débattement, obtenues par exemple en virage à grande vitesse du véhicule très chargé, alors que la limitation du braquage pourrait être moindre lors des faibles débattements de la roue, c'est-à-dire en usage courant du véhicule et en particulier lors des manoeuvres de parcage du véhicule. However, it is in the extreme positions of upward movement of the wheel, called the attacking travel, that the risk of impact mentioned above is greatest and that the transmission joint is most stressed. The usual stop elements are thus arranged so as to limit the deflection to a value which satisfies these exceptional conditions of deflection, obtained for example when cornering at high speed of the very loaded vehicle, while the limitation of the deflection could be less during low wheel travel, that is to say in current use of the vehicle and in particular during parking maneuvers of the vehicle.
L'invention a pour but de réaliser une limitation de braquage à un angle plus grand en usage courant du véhicule que lorsque les roues atteignent des positions extrêmes de débattement d'attaque. The object of the invention is to provide a deflection of deflection at a greater angle in current use of the vehicle than when the wheels reach extreme positions of attack travel.
A cet effet, le dispositif de limitation de braquage selon l'invention, pour roue de véhicule du type susmentionné, comprenant des éléments de butée respectivement solidaires du pivot et du bras oscillant, est caractérisé en ce que l'un de ces éléments présente une face inclinée par rapport à l'axe de pivotement de manière à délimiter un braquage maximal d'angle plus grand en position moyenne de débattement vertical de la roue qu'en position extrême de débattement d'attaque. To this end, the deflection device according to the invention, for a vehicle wheel of the aforementioned type, comprising stop elements respectively secured to the pivot and the swing arm, is characterized in that one of these elements has a face inclined with respect to the pivot axis so as to delimit a maximum deflection of a greater angle in the average position of vertical travel of the wheel than in the extreme position of attack travel.
Selon diverses caractéristiques intéressantes de l'invention,
- le bras étant relié au pivot par une rotule, le doigt de butée est solidaire du pivot à proximité de la rotule et coopère avec une face inclinée solidaire du bras à proximité de son axe moyen passant par la rotule et sensiblement perpendiculaire à son axe d'articulation sur la caisse;
- le bras étant transversal au véhicule, la face de butée est proche d'un plan transversal au véhicule et passant par l'axe de pivotement et est inclinée par rapport à ce plan de sorte que sa partie basse est horizontalement plus éloignée du doigt que sa partie supérieure.According to various interesting features of the invention,
the arm being connected to the pivot by a ball joint, the abutment finger is integral with the pivot in the vicinity of the ball joint and cooperates with an inclined face integral with the arm near its mean axis passing through the ball joint and substantially perpendicular to its axis d 'articulation on the body;
- the arm being transverse to the vehicle, the abutment face is close to a plane transverse to the vehicle and passing through the pivot axis and is inclined relative to this plane so that its lower part is horizontally further away from the finger than its upper part.
Un exemple de réalisation d'un dispositif de limitation de braquage selon l'invention est décrit ci-après, avec référence aux dessins annexés parmi lesquels:
- la figure 1 est une vue de l'avant simplifiée, en coupe partielle, d'une roue directrice de véhicule reliée à la caisse de celui;
- la figure 2 est une vue de dessus, suivant la flèche F de la figure 1 d'une partie du dispositif;
- et la figure 3 est une vue en coupe suivant la ligne 111-111 de la figure 1. An exemplary embodiment of a deflection device according to the invention is described below, with reference to the accompanying drawings, in which:
- Figure 1 is a simplified front view, in partial section, of a vehicle steering wheel connected to the body of that;
- Figure 2 is a top view, along arrow F of Figure 1 of a portion of the device;
- And Figure 3 is a sectional view along line 111-111 of Figure 1.
On voit sur la figure 1 une roue 1 portée par un support 2, dit pivot, relié à la caisse 3 d'un véhicule par deux bras oscillants approximativement horizontaux 4 et 5. FIG. 1 shows a wheel 1 carried by a support 2, called a pivot, connected to the body 3 of a vehicle by two approximately horizontal oscillating arms 4 and 5.
Ces bras sont disposés transversalement au véhicule et s'articulent respectivement sur la caisse par des axes 6 et 7 sensiblement parallèles à la direction longitudinale du véhicule, et sur le pivot 2 par des rotules 8 et 9. Les centres respectifs de celles-ci déterminent un axe de pivotement xx approximativement vertical pour le pivot et la roue, qui peuvent de plus subir des débattements à peu près verticaux, notamment vers le haut (débattement dit d'attaque) comme visible en traits mixtes où les divers éléments sont référencés avec un indice a.These arms are arranged transversely to the vehicle and are articulated respectively on the body by axes 6 and 7 substantially parallel to the longitudinal direction of the vehicle, and on the pivot 2 by ball joints 8 and 9. The respective centers of these determine an approximately vertical pivot axis xx for the pivot and the wheel, which can moreover undergo roughly vertical deflections, in particular upwards (so-called attack deflection) as visible in phantom where the various elements are referenced with a index a.
Un braquage de la roue, commandé par des organes de direction usuels non représentés, est limité, dans le sens indiqué par la flèche S, par des éléments de butée comprenant un doigt 10 porté par le pivot 2 et une face inclinée 11 solidaire du bras supérieur 4. Cette face est agencée à proximité d'un plan P transversal au véhicule passant par l'axe XX du pivot, et près de l'axe moyen du bras 4 passant par la rotule 8 et perpendiculaire à l'axe 6 d'articulation du bras. L'inclinaison de la face Il est telle que sa partie basse est horizontalement plus éloignée du doigt 10 que sa partie supérieure, comme visible à la figure 3. A steering of the wheel, controlled by usual steering members not shown, is limited, in the direction indicated by the arrow S, by stop elements comprising a finger 10 carried by the pivot 2 and an inclined face 11 integral with the arm upper 4. This face is arranged near a plane P transverse to the vehicle passing through the axis XX of the pivot, and near the mean axis of the arm 4 passing through the ball joint 8 and perpendicular to the axis 6 of arm joint. The inclination of the face It is such that its lower part is horizontally further away from the finger 10 than its upper part, as can be seen in FIG. 3.
Le doigt 10 est placé à proximité de la rotule 8 de manière que lorsque la roue est en position moyenne de débattement, comme représenté en traits pleins aux figures 1 et 3, le braquage maximal est obtenu par butée du doigt 10 en un point C de la partie basse de la face 11. L'angle B de ce braquage est visible à la figure 2. The finger 10 is placed close to the ball joint 8 so that when the wheel is in the middle travel position, as shown in solid lines in FIGS. 1 and 3, the maximum deflection is obtained by the stop of the finger 10 at a point C of the lower part of the face 11. The angle B of this turning is visible in FIG. 2.
Quand la roue est en position extrême de débattement d'attaque, comme représenté en traits mixtes aux figures 1 et 3, le braquage maximal est obtenu par butée du doigt 10 en un point D de la partie supérieure de la face 11. L'angle Ba de ce braquage est, comme visible à la figure 2, plus faible que l'angle B, par suite de l'inclinaison de la face 11.When the wheel is in the extreme attack travel position, as shown in phantom in Figures 1 and 3, the maximum deflection is obtained by abutment of the finger 10 at a point D of the upper part of the face 11. The angle Ba of this turning is, as visible in FIG. 2, lower than the angle B, owing to the inclination of the face 11.
Quand la roue est entre ces deux positions verticales, moyenne et extrême d'attaque, plus elle est haute, plus le contact du doigt 10 sur la face 11 s'élève de C vers D, limitant ainsi le braquage progressivement à un angle de plus en plus faible. When the wheel is between these two vertical positions, medium and extreme of attack, the higher it is, the more the contact of the finger 10 on the face 11 rises from C to D, thus limiting the deflection progressively to an angle of more and weaker.
Le déplacement du contact du doigt 10 sur la face inclinée 11 est dû au fait que l'axe moyen du bras 4, près duquel est située la face 11, forme avec l'axe de pivot Xx un angle A qui diminue quand la roue et le pivot s'élèvent par rapport à la caisse 3, comme visible à la figure 1 ou l'angle
A, légèrement obtus en position moyenne de la roue, prend une valeur
Aa, légèrement aiguë, en position extrême de débattement d'attaque.The displacement of the contact of the finger 10 on the inclined face 11 is due to the fact that the mean axis of the arm 4, near which the face 11 is located, forms with the pivot axis Xx an angle A which decreases when the wheel and the pivot rise relative to the body 3, as visible in Figure 1 or the angle
A, slightly obtuse in the middle position of the wheel, takes a value
Aa, slightly acute, in the extreme attack travel position.
Une disposition analogue et sensiblement symétrique par rapport au plan P peut être prévue pour limiter le braquage dans le sens opposé à celui de la flèche S. A similar arrangement and substantially symmetrical with respect to the plane P can be provided to limit the turning in the opposite direction to that of the arrow S.
En variante, le doigt est porté par le bras et la face inclinée coopérante est solidaire du pivot, le contact de butée s'effectuant encore à proximité de l'axe moyen du bras. As a variant, the finger is carried by the arm and the cooperating inclined face is integral with the pivot, the abutment contact still taking place near the mean axis of the arm.
Les éléments de butée peuvent aussi être associés au bras inférieur, notamment quant le pivot est relié à la caisse du véhicule au moyen d'une jambe télescopique, ou à un bras approximativement horizontal non plus transversal au véhicule mais longitudinal ou incliné, du moment que le contact entre doigt et face inclinée s'effectue à proximité de l'axe moyen du bras et que l'angle formé par cet axe avec celui du pivot varie avec les débattements de la roue. The stop elements can also be associated with the lower arm, in particular when the pivot is connected to the vehicle body by means of a telescopic leg, or to an approximately horizontal arm no longer transverse to the vehicle but longitudinal or inclined, as long as the contact between finger and inclined face takes place near the mean axis of the arm and that the angle formed by this axis with that of the pivot varies with the deflections of the wheel.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9313762A FR2712553B1 (en) | 1993-11-18 | 1993-11-18 | Device for limiting the deflection of a steering wheel of a vehicle. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9313762A FR2712553B1 (en) | 1993-11-18 | 1993-11-18 | Device for limiting the deflection of a steering wheel of a vehicle. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2712553A1 true FR2712553A1 (en) | 1995-05-24 |
FR2712553B1 FR2712553B1 (en) | 1995-12-15 |
Family
ID=9452967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9313762A Expired - Fee Related FR2712553B1 (en) | 1993-11-18 | 1993-11-18 | Device for limiting the deflection of a steering wheel of a vehicle. |
Country Status (1)
Country | Link |
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FR (1) | FR2712553B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19726289A1 (en) * | 1997-06-20 | 1998-12-24 | Audi Ag | Vehicle steering lock limit |
JP2016147539A (en) * | 2015-02-10 | 2016-08-18 | 本田技研工業株式会社 | Oscillation type vehicle |
EP3904132A1 (en) * | 2020-04-30 | 2021-11-03 | Segway Technology Co., Ltd. | Suspension device and all-terrain vehicle |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1455639A1 (en) * | 1964-12-10 | 1969-05-29 | Maschf Augsburg Nuernberg Ag | Wheel guide for heavy all-terrain vehicles |
WO1992021547A1 (en) * | 1991-06-07 | 1992-12-10 | Ab Volvo | Means for limiting the steering movement at a vehicle |
-
1993
- 1993-11-18 FR FR9313762A patent/FR2712553B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1455639A1 (en) * | 1964-12-10 | 1969-05-29 | Maschf Augsburg Nuernberg Ag | Wheel guide for heavy all-terrain vehicles |
WO1992021547A1 (en) * | 1991-06-07 | 1992-12-10 | Ab Volvo | Means for limiting the steering movement at a vehicle |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19726289A1 (en) * | 1997-06-20 | 1998-12-24 | Audi Ag | Vehicle steering lock limit |
DE19726289B4 (en) * | 1997-06-20 | 2005-12-08 | Audi Ag | Device for limiting the impact of steered wheels of motor vehicles |
JP2016147539A (en) * | 2015-02-10 | 2016-08-18 | 本田技研工業株式会社 | Oscillation type vehicle |
EP3059152A3 (en) * | 2015-02-10 | 2016-11-16 | Honda Motor Co., Ltd. | Rolling type vehicle |
EP3904132A1 (en) * | 2020-04-30 | 2021-11-03 | Segway Technology Co., Ltd. | Suspension device and all-terrain vehicle |
US11491836B2 (en) | 2020-04-30 | 2022-11-08 | Segway Technology Co., Ltd. | Suspension device and all-terrain vehicle |
Also Published As
Publication number | Publication date |
---|---|
FR2712553B1 (en) | 1995-12-15 |
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ST | Notification of lapse |