FR2600595A1 - Suspension device with a telescopic strut of the Mac Pherson type, especially for a motor vehicle - Google Patents
Suspension device with a telescopic strut of the Mac Pherson type, especially for a motor vehicle Download PDFInfo
- Publication number
- FR2600595A1 FR2600595A1 FR8609074A FR8609074A FR2600595A1 FR 2600595 A1 FR2600595 A1 FR 2600595A1 FR 8609074 A FR8609074 A FR 8609074A FR 8609074 A FR8609074 A FR 8609074A FR 2600595 A1 FR2600595 A1 FR 2600595A1
- Authority
- FR
- France
- Prior art keywords
- suspension device
- spring
- turn
- strut
- respect
- 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
- 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
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/10—Independent suspensions
- B60G2200/14—Independent suspensions with lateral arms
- B60G2200/142—Independent suspensions with lateral arms with a single lateral arm, e.g. MacPherson type
-
- 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
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/30—Spring/Damper and/or actuator Units
- B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
-
- 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
- B60G2204/12—Mounting of springs or dampers
- B60G2204/124—Mounting of coil springs
- B60G2204/1242—Mounting of coil springs on a damper, e.g. MacPerson strut
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
DISPOSITIF DE SUSPENSION A JAMBE TELESCOPIQUE DU TYPE MAC
PHERSON, NOTAMMENt POUR VEHICULE AUTOMOBILE
La présente invention se rapporte à un dispositif de suspension à jambe télescopique du type Mac Pherson, notamment pour véhicule automobile.MAC TYPE TELESCOPIC LEG SUSPENSION DEVICE
PHERSON, IN PARTICULAR FOR A MOTOR VEHICLE
The present invention relates to a suspension device with telescopic leg of the Mac Pherson type, in particular for a motor vehicle.
On connaît les inconvénients propres à ce type de suspension, qui résident essentiellement dans la présence de forces de frottement dans 1' amortisseur de la jambe de force, 1' empêchant de fonctionner pour les petites sollicitations verticales.We know the drawbacks specific to this type of suspension, which essentially resides in the presence of friction forces in the shock absorber of the strut, preventing it from operating for small vertical stresses.
Ceci provient du couple de flexion créé par la charge de la roue sur la tige de guidage et a pour conséquences la transmission des bruits de roulement dans la caisse du véhicule, la réduction de la durée de vie des amortisseurs et 1' augmentation de 1' hystérésis de la suspension.This comes from the bending torque created by the load of the wheel on the guide rod and results in the transmission of rolling noise in the vehicle body, the reduction of the life of the shock absorbers and the increase of 1 ' suspension hysteresis.
Une amélioration sensible a été amené à ce type de train à roue indépendantes en créant entre le cylindre et le piston de 1' amortisseur, en position d' équilibre de la suspension, un couple de flexion antagoniste au précédent, tendant à annuler les forces de frottement parasites ci-dessus.A significant improvement has been brought to this type of independent wheel train by creating between the cylinder and the piston of the shock absorber, in the suspension equilibrium position, an antagonistic bending torque to the previous one, tending to cancel the forces of parasitic friction above.
Ceci est obtenu notamment en montant le ressort hélicoldal de la suspension de façon excentrée par rapport à 1' axe de 1' amortisseur.This is achieved in particular by mounting the helical spring of the suspension eccentrically with respect to the axis of the shock absorber.
Toutefois, on se heurte dans certaines structures à des limitations dûes en particulier à 1' environnement mécanique, qui empêchent une excentration suffisante du ressort pour créer un couple antagoniste adéquat, même en décalant la spire inférieure du ressort jusqu' à sa mise en contact avec la jambe de force. Ceci est naturellement inadmissible et le but de là présente invention est de pallier cette difficulté.However, in certain structures, there are limitations due in particular to the mechanical environment, which prevent sufficient eccentricity of the spring to create an adequate opposing torque, even by shifting the lower turn of the spring until it comes into contact with the strut. This is naturally inadmissible and the aim of the present invention is to overcome this difficulty.
Elle sera décrite, à titre d'exemple non limitatif, au regard des figures 1 et 2 ci-jointes, qui se rapportent respectivement : - la figure 1, à une vue de face du train selon l'invention ; - la figure 2, à une vue de détail, en perspective montrant la position de
la dernière spire du ressort.It will be described, by way of nonlimiting example, with regard to Figures 1 and 2 attached, which relate respectively: - Figure 1, a front view of the train according to the invention; - Figure 2, in a detail view, in perspective showing the position of
the last turn of the spring.
En référence à la figure 1, on voit un porte fusée l supportant la roue 2, fixé à sa base à un bras transversal 3 articulé à ses deux extrérflités, dont l'une aboutit à la caisse en 4, tandis que la partie supérieure dudit porte fusée l reçoit la base d'une iambe de force 5, dont la tige de guidage 6 est solidarisée à la caisse 7 par une rotule 8.Referring to Figure 1, we see a rocket carrier l supporting the wheel 2, fixed at its base to a transverse arm 3 articulated at its two ends, one of which leads to the body at 4, while the upper part of said rocket carrier l receives the base of a strut 5, the guide rod 6 of which is secured to the body 7 by a ball joint 8.
Un ressort hélicoïdal 9 prend appui par sa partie haute sur la caisse, sa partie basse reposant sur une coupelle 10 fixée au cylindre de la lambe de force 5.A helical spring 9 is supported by its upper part on the body, its lower part resting on a cup 10 fixed to the cylinder of the force flap 5.
Soient 0 le point de rencontre du plan de -symétrie de la roue 2 et - du plan du bras 3 et R' R la ligne d' action d'effort du ressort 9 qui passe toujours à l'intérieur des spires extrêmes de ce dernier, respectivement supérieure 11 et inférieure 12.Let 0 be the meeting point of the plane of -symmetry of the wheel 2 and - of the plane of the arm 3 and R 'R the force action line of the spring 9 which always passes inside the extreme turns of the latter , respectively upper 11 and lower 12.
On sait que 1' on ne génèrera pas d' effort tranchant au point F de fixation de 1' amortisseur 5 à la caisse 7, et que par conséquent il y aura le minimum de forces de frottement dans ce dernier, si l' axe R' R passe par le point 0.We know that we will not generate a shearing force at the point F of fixing the shock absorber 5 to the body 7, and that consequently there will be the minimum of friction forces in the latter, if the axis R 'R goes through point 0.
Considérons un ressort 9 selon 1' état de la technique disposé dans la structure de la figure 1, dont la spire inférieure 12' serait en position limite de bon fonctionnement par rapport à 1' amortisseur 5. On voit que sa ligne d'action S' S, malgré l' excentration du ressort 9 et de l'amortisseur 5, ne rencontre pas le point 0 ; par conséquent cette géométrie ntannulera pas les efforts tranchants au point F et donc des frottements existeront dans l' amortisseur 5, entravant les conséquences néfastes évoquées plus haut.Let us consider a spring 9 according to the state of the art arranged in the structure of FIG. 1, whose lower turn 12 ′ would be in the limit position for proper operation with respect to the damper 5. It can be seen that its line of action S 'S, despite the eccentricity of the spring 9 and the shock absorber 5, does not meet the point 0; consequently this geometry will not cancel the shearing forces at point F and therefore friction will exist in the damper 5, hampering the harmful consequences mentioned above.
Au contraire, comme on le voit bien à la figure 2, on rejette la spire inférieure 12 du ressort selon 1' invention vers 1' extérieur de
I' amortisseur 5. On the contrary, as can be seen in FIG. 2, the lower coil 12 of the spring according to the invention is rejected towards the outside of
The shock absorber 5.
Dans ce cas, la ligne d'action R' R, qui passe par l'intérieur de cette spire 12, est également rejetée vers l'extérieur du véhicule d'-un angle "a" par rapport à la ligne d'action S'S ; de ce fait, on peutl'amenerà passer par le point 0 et donc à annuler les efforts tranchants au poin F et les frottements superflus dans 1' amortisseur 5.In this case, the line of action R ′ R, which passes through the interior of this turn 12, is also rejected towards the exterior of the vehicle at an angle "a" with respect to the line of action S'S ; therefore, it can be brought to pass through the point 0 and therefore to cancel the shear forces at the point F and the superfluous friction in the damper 5.
On remarque donc que la disposition selon 1' invention permet une amélioration quantitative très importante de 1' effet correcteur de couple, antérieurement connu, ce qui ne pourraît pas être atteint dans certaines configurations géométriques avec les dispositifs classiques.It is therefore noted that the arrangement according to the invention allows a very significant quantitative improvement of the torque correcting effect, previously known, which could not be achieved in certain geometric configurations with conventional devices.
De plus, en exagérant la translation vers l'extérieur de la spire 12, et donc du point R, on entraîne un déplacement simultané dans la même direction du point R', et ce faisant du ressort 9. Il résulte de ce qui précède qu' on libère un volume précieux entre les chapelles droite et gauche du train avant et/ou arrière, utilisable pour différents dispositifs tels que correcteurs d' assiette, réservoir de carburant, coffre, etc...In addition, by exaggerating the translation towards the outside of the turn 12, and therefore from the point R, one causes a simultaneous displacement in the same direction of the point R ', and in doing so of the spring 9. It follows from the above that 'a precious volume is freed up between the right and left chapels of the front and / or rear axle, usable for different devices such as trim adjusters, fuel tank, boot, etc ...
Comme on le voit à la figure 2, la coupelle inférieure 10 du ressort 9 est conformée de façon à recevoir correctement la spire 12 et en particulier comporte une dépression 13 pour loger l'extrémité de ladite spire. As can be seen in FIG. 2, the lower cup 10 of the spring 9 is shaped so as to correctly receive the turn 12 and in particular comprises a depression 13 to accommodate the end of said turn.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8609074A FR2600595B1 (en) | 1986-06-24 | 1986-06-24 | MAC PHERSON TYPE TELESCOPIC LEG SUSPENSION DEVICE, PARTICULARLY FOR A MOTOR VEHICLE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8609074A FR2600595B1 (en) | 1986-06-24 | 1986-06-24 | MAC PHERSON TYPE TELESCOPIC LEG SUSPENSION DEVICE, PARTICULARLY FOR A MOTOR VEHICLE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2600595A1 true FR2600595A1 (en) | 1987-12-31 |
FR2600595B1 FR2600595B1 (en) | 1990-07-20 |
Family
ID=9336607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8609074A Expired - Fee Related FR2600595B1 (en) | 1986-06-24 | 1986-06-24 | MAC PHERSON TYPE TELESCOPIC LEG SUSPENSION DEVICE, PARTICULARLY FOR A MOTOR VEHICLE |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2600595B1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0292371A1 (en) * | 1987-05-19 | 1988-11-23 | Automobiles Peugeot | Set of steerable motor vehicle wheels with telescopic suspension struts having an inclined spring |
FR2641741A1 (en) * | 1988-12-28 | 1990-07-20 | Peugeot | Suspension device for a motor vehicle |
AT393248B (en) * | 1990-02-01 | 1991-09-10 | Steyr Daimler Puch Ag | WHEEL SUSPENSION |
DE4110471A1 (en) * | 1990-04-14 | 1991-10-17 | Volkswagen Ag | Shock absorber strut - has uppermost spring coil bearing on spring plate and/or lowermost coil bearing upon spring mounting |
FR2670437A1 (en) * | 1990-12-13 | 1992-06-19 | Allevard Ind Sa | MacPherson suspension element with reduced friction |
FR2730673A1 (en) * | 1995-02-17 | 1996-08-23 | Allevard Sa | MAC PHERSON TYPE SUSPENSION DEVICE FOR VEHICLE |
EP0791491A1 (en) * | 1996-02-23 | 1997-08-27 | Ateliers Métallurgiques de Saint Urbain (AMSU) | Wheel suspension with helical spring |
EP0838355A1 (en) * | 1996-10-25 | 1998-04-29 | Allevard | Device for pseudo-MacPherson type suspension for motor vehicles |
US6550755B2 (en) * | 2000-01-31 | 2003-04-22 | Ina Walzlager Schaeffler Ohg | Arrangement with a helical spring and a support bearing for spring struts |
EP1162092A3 (en) * | 2000-06-06 | 2003-10-22 | Montini & C. S.n.c. | Vehicle suspension with an axle having two steering wheels, particularly for four-wheel lift trucks |
DE102014226225B4 (en) * | 2014-12-17 | 2020-08-27 | Zf Friedrichshafen Ag | Suspension assembly |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1432199A (en) * | 1965-04-30 | 1966-03-18 | Ford France | Independent wheel suspension for motor vehicle |
FR1589929A (en) * | 1967-10-28 | 1970-04-06 | ||
US4046403A (en) * | 1975-02-17 | 1977-09-06 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Strut type independent suspension system for automobiles |
GB2137146A (en) * | 1983-03-03 | 1984-10-03 | Daimler Benz Ag | A wheel suspension for a motor vehicle |
EP0135808A2 (en) * | 1983-09-13 | 1985-04-03 | Gebr. Ahle GmbH & Co. | Elastic suspension device, particularly a motor vehicle wheel suspension |
JPS6088614A (en) * | 1983-10-22 | 1985-05-18 | Daihatsu Motor Co Ltd | Strut type wheel suspension device |
-
1986
- 1986-06-24 FR FR8609074A patent/FR2600595B1/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1432199A (en) * | 1965-04-30 | 1966-03-18 | Ford France | Independent wheel suspension for motor vehicle |
FR1589929A (en) * | 1967-10-28 | 1970-04-06 | ||
US4046403A (en) * | 1975-02-17 | 1977-09-06 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Strut type independent suspension system for automobiles |
GB2137146A (en) * | 1983-03-03 | 1984-10-03 | Daimler Benz Ag | A wheel suspension for a motor vehicle |
EP0135808A2 (en) * | 1983-09-13 | 1985-04-03 | Gebr. Ahle GmbH & Co. | Elastic suspension device, particularly a motor vehicle wheel suspension |
JPS6088614A (en) * | 1983-10-22 | 1985-05-18 | Daihatsu Motor Co Ltd | Strut type wheel suspension device |
Non-Patent Citations (1)
Title |
---|
PATENTS ABSTRACTS OF JAPAN, vol. 9, no. 231 (M-414)[1954], 18 septembre 1985; & JP-A-60 88 614 (DAIHATSU KOGYO K.K.) 18-05-1985 * |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0292371A1 (en) * | 1987-05-19 | 1988-11-23 | Automobiles Peugeot | Set of steerable motor vehicle wheels with telescopic suspension struts having an inclined spring |
FR2641741A1 (en) * | 1988-12-28 | 1990-07-20 | Peugeot | Suspension device for a motor vehicle |
AT393248B (en) * | 1990-02-01 | 1991-09-10 | Steyr Daimler Puch Ag | WHEEL SUSPENSION |
DE4110471A1 (en) * | 1990-04-14 | 1991-10-17 | Volkswagen Ag | Shock absorber strut - has uppermost spring coil bearing on spring plate and/or lowermost coil bearing upon spring mounting |
FR2670437A1 (en) * | 1990-12-13 | 1992-06-19 | Allevard Ind Sa | MacPherson suspension element with reduced friction |
FR2730673A1 (en) * | 1995-02-17 | 1996-08-23 | Allevard Sa | MAC PHERSON TYPE SUSPENSION DEVICE FOR VEHICLE |
EP0728602A1 (en) * | 1995-02-17 | 1996-08-28 | Allevard | Device for MacPherson-type vehicle suspension |
EP0791491A1 (en) * | 1996-02-23 | 1997-08-27 | Ateliers Métallurgiques de Saint Urbain (AMSU) | Wheel suspension with helical spring |
FR2745239A1 (en) * | 1996-02-23 | 1997-08-29 | Metallurg De Saint Urbain Amsu | HELICOIDAL SPRING WHEEL SUSPENSION |
EP0838355A1 (en) * | 1996-10-25 | 1998-04-29 | Allevard | Device for pseudo-MacPherson type suspension for motor vehicles |
FR2755066A1 (en) * | 1996-10-25 | 1998-04-30 | Allevard Sa | PSEUDO MAC PHERSON SUSPENSION DEVICE FOR MOTOR VEHICLES |
US6550755B2 (en) * | 2000-01-31 | 2003-04-22 | Ina Walzlager Schaeffler Ohg | Arrangement with a helical spring and a support bearing for spring struts |
EP1162092A3 (en) * | 2000-06-06 | 2003-10-22 | Montini & C. S.n.c. | Vehicle suspension with an axle having two steering wheels, particularly for four-wheel lift trucks |
DE102014226225B4 (en) * | 2014-12-17 | 2020-08-27 | Zf Friedrichshafen Ag | Suspension assembly |
Also Published As
Publication number | Publication date |
---|---|
FR2600595B1 (en) | 1990-07-20 |
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ST | Notification of lapse |