EP3887179A1 - Rear part of a vehicle comprising a transverse suspension element - Google Patents

Rear part of a vehicle comprising a transverse suspension element

Info

Publication number
EP3887179A1
EP3887179A1 EP19823790.1A EP19823790A EP3887179A1 EP 3887179 A1 EP3887179 A1 EP 3887179A1 EP 19823790 A EP19823790 A EP 19823790A EP 3887179 A1 EP3887179 A1 EP 3887179A1
Authority
EP
European Patent Office
Prior art keywords
vehicle
rear part
suspension element
structural part
structural
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Withdrawn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
EP19823790.1A
Other languages
German (de)
French (fr)
Inventor
Romain Grosset
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 EP3887179A1 publication Critical patent/EP3887179A1/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Withdrawn legal-status Critical Current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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/30—Rigid axle suspensions
    • B60G2200/34—Stabilising mechanisms, e.g. for lateral stability
    • B60G2200/341—Panhard rod
    • 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

Definitions

  • the present invention relates to a rear part of a vehicle which has a wheel arch, a spar which extends essentially along the longitudinal axis of the vehicle, at the edge of the wheel arch, a suspension element which extends
  • a suspension element which extends essentially along the transverse axis of the vehicle and means for fixing a first end of the suspension element to a structural part of said rear part.
  • a suspension element is constituted by a stabilizing bar for a semi-rigid rear axle, commonly called a Panhard bar, which extends between the two rear beams, with pivot-type fixing means which secure a first end of the bar. Panhard to a rear axle suspension arm and a second end to the spar positioned opposite the suspension arm.
  • Such an assembly of the Panhard bar limits its length to the distance between the suspension arm and the beam positioned opposite the suspension arm, which limits the road behavior of the vehicle and also degrades comfort.
  • the device according to the invention overcomes these drawbacks.
  • it indeed comprises a rear part of a vehicle which includes a wheel arch, a spar which extends essentially along the longitudinal axis of the vehicle, at the edge of the wheel arch, a suspension element. which extends essentially along the transverse axis of the vehicle and of the means for fixing a first end of the suspension element to a first structural part of said rear part, such that the first structural part is positioned in the passage of wheel.
  • the first structural part forms a yoke.
  • the yoke is extended under the beam by a second structural part which forms a U.
  • the yoke and the second U-shaped structural part are open towards the bottom of the vehicle.
  • the second structural part is extended by a third structural part which extends along a side wall of the beam which is positioned opposite the wheel arch.
  • the yoke and the second structural part comprise at least one part which has two thicknesses of sheets.
  • the upper part of the first structural part extends above the lower part of the part of the beam on which said first structural part is secured.
  • the suspension element is formed by a Panhard bar.
  • the first end of the suspension element is fixed to the first structural part by fixing means of the pivot type.
  • the present invention also relates to a vehicle which comprises a rear part with at least one of the preceding characteristics.
  • FIG.1 shows a sectional side view of part of the rear structure of the vehicle according to the invention.
  • a frame of reference linked to the normal direction of movement of a vehicle is used.
  • the term front indicates a positioning towards the front of the vehicle and the rear term indicates a positioning towards the rear of the vehicle.
  • the longitudinal axis corresponds to the normal axis of travel of the vehicle and the transverse axis to an axis perpendicular to the longitudinal axis included in the plane of movement of the vehicle.
  • Figure 1 shows a sectional side view of part of the rear structure 1 of the vehicle.
  • the rear part 1 of a vehicle has a wheel arch 2, a beam 3 which extends essentially along the longitudinal axis of the vehicle, at the edge of the wheel arch 2 and a suspension element 4 which extends essentially along the transverse axis of the vehicle.
  • the suspension element 4 forms a Panhard bar with a central cylindrical part 42, a first end 41 of which is fixed by fixing means 5 to a first part 1 1 of the rear structure 1 of the vehicle.
  • the first part 1 1 of the rear structure 1 of the vehicle is positioned in the wheel arch 2. To do this, the first part 1 1 of the rear structure 1 of the vehicle forms a yoke.
  • the yoke 1 1 is open only on two sides; a first lateral side for the passage of the central cylindrical part 42 of the suspension element 4 and towards the bottom of the vehicle.
  • the yoke 1 1 is extended by a second structural part 12 under the beam 3.
  • the second structural part 12 has a U-shape open towards the bottom of the vehicle.
  • a third structural part 13 extends the second structural part 12 and goes up along a lateral edge 31 called the inner side of the beam 3, positioned opposite the wheel arch 2.
  • the second structural part 12 and the yoke 1 1 have a double thickness of sheets to ensure a sufficient level of rigidity.
  • the fastening means 5 are of the pivot type with a pivot axis 51 secured to the yoke 11 and a cylindrical ring 52 secured to the first end 41 of the suspension element 4.
  • a cylindrical shim 53 is interposed between the pivot axis 51 and the ring 52.
  • the yoke 1 1 can also, depending on the desired positioning for the first end 41 of the suspension element, go up towards the top of the vehicle in the wheel arch 2 relative to to the second structural part 12.
  • the purpose of such an assembly being to have the cylindrical central part 42 of the suspension element 4 which is as long as possible and as high as possible.
  • the second end of the suspension element 4 is integral with a suspension arm of a rear axle of the semi-rigid type vehicle, as known from the state of the art (the second end of the suspension element suspension, the suspension arm and the rear axle of the vehicle not being shown).
  • the suspension element 4 does indeed have a length greater than the distance between a suspension arm and the beam 3 positioned on the opposite side of said arm, without encroaching on other parts of the rear part of the vehicle, in particular on the chest.

Abstract

The invention relates to a rear part (1) of a vehicle which comprises a wheelhouse (2), a longitudinal member (3) which extends substantially along the longitudinal axis of the vehicle, bordering the wheelhouse (2), a suspension element (4) which extends substantially along the transverse axis of the vehicle, and fastening means (5) for fastening a first end (41) of the suspension element (4) to a first structural part (11) of said rear part (1), such that the first structural part (11) is positioned in the wheelhouse (2).

Description

DESCRIPTION DESCRIPTION
PARTIE ARRIERE D’UN VEHICULE COMPORTANT UN ELEMENT DE REAR PART OF A VEHICLE COMPRISING AN ELEMENT OF
SUSPENSION TRANSVERSAL CROSS SUSPENSION
La présente invention concerne une partie arrière d’un véhicule qui comporte un passage de roue, un longeronnet qui s’étendant essentiellement selon l’axe longitudinal du véhicule, en bordure du passage de roue, un élément de suspension qui s’étend The present invention relates to a rear part of a vehicle which has a wheel arch, a spar which extends essentially along the longitudinal axis of the vehicle, at the edge of the wheel arch, a suspension element which extends
essentiellement selon l’axe transversal du véhicule et des moyens de fixation d’une première extrémité de l’élément de suspension sur une partie structurelle de ladite partie arrière. essentially along the transverse axis of the vehicle and means for fixing a first end of the suspension element to a structural part of said rear part.
Il est connu du document FR-A1 -2644733 d’avoir une partie arrière d’un véhicule qui comporte un passage de roue, un longeronnet qui s’étendant essentiellement selon l’axe longitudinal du véhicule, en bordure du passage de roue, un élément de suspension qui s’étend essentiellement selon l’axe transversal du véhicule et des moyens de fixation d’une première extrémité de l’élément de suspension sur une partie structurelle de ladite partie arrière. Un tel élément de suspension est constitué par une barre stabilisatrice pour un train arrière semi-rigide, couramment appelée barre Panhard, qui s’étend entre les deux longeronnets arrière, avec des moyens de fixation de type pivots qui solidarisent une première extrémité de la barre Panhard à un bras de suspension du train arrière et une seconde extrémité au longeronnet positionné à l’opposé du bras de suspension. Un tel montage de la barre Panhard en limite sa longueur à l’écartement entre le bras de suspension et le longeronnet positionné à l’opposé du bras de suspension, ce qui limite le comportement routier du véhicule et dégrade aussi le confort. It is known from document FR-A1 -2644733 to have a rear part of a vehicle which has a wheel arch, a spar which extends essentially along the longitudinal axis of the vehicle, at the edge of the wheel arch, a suspension element which extends essentially along the transverse axis of the vehicle and means for fixing a first end of the suspension element to a structural part of said rear part. Such a suspension element is constituted by a stabilizing bar for a semi-rigid rear axle, commonly called a Panhard bar, which extends between the two rear beams, with pivot-type fixing means which secure a first end of the bar. Panhard to a rear axle suspension arm and a second end to the spar positioned opposite the suspension arm. Such an assembly of the Panhard bar limits its length to the distance between the suspension arm and the beam positioned opposite the suspension arm, which limits the road behavior of the vehicle and also degrades comfort.
Le dispositif selon l’invention permet de remédier à ces inconvénients. Il comporte en effet, selon l’invention, une partie arrière d’un véhicule qui comporte un passage de roue, un longeronnet qui s’étend essentiellement selon l’axe longitudinal du véhicule, en bordure du passage de roue, un élément de suspension qui s’étend essentiellement selon l’axe transversal du véhicule et des moyens de fixation d’une première extrémité de l’élément de suspension sur une première partie structurelle de ladite partie arrière, telle que la première partie structurelle est positionnée dans le passage de roue. Selon des modes particuliers de réalisation : The device according to the invention overcomes these drawbacks. According to the invention, it indeed comprises a rear part of a vehicle which includes a wheel arch, a spar which extends essentially along the longitudinal axis of the vehicle, at the edge of the wheel arch, a suspension element. which extends essentially along the transverse axis of the vehicle and of the means for fixing a first end of the suspension element to a first structural part of said rear part, such that the first structural part is positioned in the passage of wheel. According to particular embodiments:
- la première partie structurelle forme une chape. - the first structural part forms a yoke.
- la chape est prolongée sous le longeronnet par une seconde partie structurelle qui forme un U. - the yoke is extended under the beam by a second structural part which forms a U.
- la chape et la seconde partie structurelle en U sont ouvertes vers le bas du véhicule. - the yoke and the second U-shaped structural part are open towards the bottom of the vehicle.
- la seconde partie structurelle est prolongée par une troisième partie structurelle qui s’étend le long d’une paroi latérale du longeronnet qui est positionnée à l’opposée au passage de roue. - The second structural part is extended by a third structural part which extends along a side wall of the beam which is positioned opposite the wheel arch.
- la chape et la seconde partie structurelle comportent au moins une partie qui présente deux épaisseurs de tôles. - The yoke and the second structural part comprise at least one part which has two thicknesses of sheets.
- la partie haute de la première partie structurelle s’étend au-dessus de la partie basse de la partie du longeronnet sur laquelle est solidarisée ladite première partie structurelle. - The upper part of the first structural part extends above the lower part of the part of the beam on which said first structural part is secured.
- l’élément de suspension est formée par une barre Panhard. - the suspension element is formed by a Panhard bar.
- la première extrémité de l’élément de suspension est fixée sur la première partie structurelle par des moyens de fixation du type à pivot. - the first end of the suspension element is fixed to the first structural part by fixing means of the pivot type.
La présente invention concerne aussi un véhicule qui comporte une partie arrière avec au moins une des caractéristiques précédentes. The present invention also relates to a vehicle which comprises a rear part with at least one of the preceding characteristics.
Les dessins annexés illustrent l’invention : The accompanying drawings illustrate the invention:
[Fig.1 ] représente une vue latérale en coupe d’une partie de la structure arrière du véhicule selon l’invention. [Fig.1] shows a sectional side view of part of the rear structure of the vehicle according to the invention.
Dans la description détaillée de l’invention est utilisé un référentiel lié au sens normal de circulation d’un véhicule. Le terme avant désigne un positionnement vers l’avant du véhicule et le terme arrière désigne un positionnement vers l’arrière du véhicule. L’axe longitudinal correspond à l’axe normal de circulation du véhicule et l’axe transversal à un axe perpendiculaire à l’axe longitudinal compris dans le plan de déplacement du véhicule. In the detailed description of the invention, a frame of reference linked to the normal direction of movement of a vehicle is used. The term front indicates a positioning towards the front of the vehicle and the rear term indicates a positioning towards the rear of the vehicle. The longitudinal axis corresponds to the normal axis of travel of the vehicle and the transverse axis to an axis perpendicular to the longitudinal axis included in the plane of movement of the vehicle.
La figure 1 représente une vue latérale en coupe d’une partie de la structure arrière 1 du véhicule. La partie arrière 1 d’un véhicule comporte un passage de roue 2, un longeronnet 3 qui s’étend essentiellement selon l’axe longitudinal du véhicule, en bordure du passage de roue 2 et un élément de suspension 4 qui s’étend essentiellement selon l’axe transversal du véhicule. L’élément de suspension 4 forme une barre Panhard avec une partie centrale 42 cylindrique dont une première extrémité 41 est fixée par des moyens de fixation 5 sur une première partie 1 1 de la structure arrière 1 du véhicule. La première partie 1 1 de la structure arrière 1 du véhicule est positionnée dans le passage de roue 2. Pour ce faire, La première partie 1 1 de la structure arrière 1 du véhicule forme une chape. La chape 1 1 est ouverte uniquement sur deux côté ; un premier côté latéral pour le passage de la partie centrale 42 cylindrique de l’élément de suspension 4 et vers le bas du véhicule. La chape 1 1 est prolongée par une seconde partie structurelle 12 sous le longeronnet 3. La seconde partie structurelle 12 présente une forme en U ouverte vers le bas du véhicule. Une troisième partie structurelle 13 prolonge la seconde partie structurelle 12 et remonte le long d’une bordure latérale 31 dite intérieure du longeronnet 3, positionnée à l’opposé du passage de roue 2. La seconde partie structurelle 12 et la chape 1 1 comportent une double épaisseur de tôles pour assurer un niveau de rigidité suffisant. Les moyens de fixation 5 sont du type pivot avec un axe de pivot 51 solidaire de la chape 1 1 et un anneau cylindrique 52 solidaire de la première extrémité 41 de l’élément de suspension 4. Une cale cylindrique 53, en caoutchouc, est interposée entre l’axe de pivot 51 et l’anneau 52. La chape 1 1 peut aussi, suivant le positionnement souhaité pour le première extrémité 41 de l’élément de suspension, remonter vers le haut du véhicule dans le passage de roue 2 par rapport à la seconde partie structurelle 12. Le but d’un tel montage étant d’avoir la partie centrale 42 cylindrique de l’élément de suspension 4 qui soit le plus long possible et le plus haut possible. La seconde extrémité de l’élément de suspension 4 est solidaire d’un bras de suspension d’un train arrière du véhicule de type semi-rigide, tel que connu de l’état de la technique (la seconde extrémité de l’élément de suspension, le bras de suspension et le train arrière du véhicule n’étant pas représentés). Ainsi, l’élément de suspension 4 présente bien une longueur supérieure à l’écartement entre un bras de suspension et le longeronnet 3 positionné du côté opposé dudit bras, sans empiéter sur d’autres parties de la partie arrière du véhicule, notamment sur le coffre. Figure 1 shows a sectional side view of part of the rear structure 1 of the vehicle. The rear part 1 of a vehicle has a wheel arch 2, a beam 3 which extends essentially along the longitudinal axis of the vehicle, at the edge of the wheel arch 2 and a suspension element 4 which extends essentially along the transverse axis of the vehicle. The suspension element 4 forms a Panhard bar with a central cylindrical part 42, a first end 41 of which is fixed by fixing means 5 to a first part 1 1 of the rear structure 1 of the vehicle. The first part 1 1 of the rear structure 1 of the vehicle is positioned in the wheel arch 2. To do this, the first part 1 1 of the rear structure 1 of the vehicle forms a yoke. The yoke 1 1 is open only on two sides; a first lateral side for the passage of the central cylindrical part 42 of the suspension element 4 and towards the bottom of the vehicle. The yoke 1 1 is extended by a second structural part 12 under the beam 3. The second structural part 12 has a U-shape open towards the bottom of the vehicle. A third structural part 13 extends the second structural part 12 and goes up along a lateral edge 31 called the inner side of the beam 3, positioned opposite the wheel arch 2. The second structural part 12 and the yoke 1 1 have a double thickness of sheets to ensure a sufficient level of rigidity. The fastening means 5 are of the pivot type with a pivot axis 51 secured to the yoke 11 and a cylindrical ring 52 secured to the first end 41 of the suspension element 4. A cylindrical shim 53, made of rubber, is interposed between the pivot axis 51 and the ring 52. The yoke 1 1 can also, depending on the desired positioning for the first end 41 of the suspension element, go up towards the top of the vehicle in the wheel arch 2 relative to to the second structural part 12. The purpose of such an assembly being to have the cylindrical central part 42 of the suspension element 4 which is as long as possible and as high as possible. The second end of the suspension element 4 is integral with a suspension arm of a rear axle of the semi-rigid type vehicle, as known from the state of the art (the second end of the suspension element suspension, the suspension arm and the rear axle of the vehicle not being shown). Thus, the suspension element 4 does indeed have a length greater than the distance between a suspension arm and the beam 3 positioned on the opposite side of said arm, without encroaching on other parts of the rear part of the vehicle, in particular on the chest.

Claims

REVENDICATIONS
1. Partie arrière (1 ) d’un véhicule, comportant un passage de roue (2), un 1. Rear part (1) of a vehicle, comprising a wheel arch (2), a
longeronnet (3) qui s’étend essentiellement selon l’axe longitudinal du véhicule, en bordure du passage de roue (2), un élément de suspension (4) qui s’étend essentiellement selon l’axe transversal du véhicule et des moyens de fixation (5) d’une première extrémité (41 ) de l’élément de suspension (4) sur une première partie structurelle (1 1 ) de ladite partie arrière (1 ), caractérisée en ce que ladite première partie structurelle (1 1 ) est positionnée dans le passage de roue (2). spar (3) which extends essentially along the longitudinal axis of the vehicle, at the edge of the wheel arch (2), a suspension element (4) which extends essentially along the transverse axis of the vehicle and means for fixing (5) of a first end (41) of the suspension element (4) on a first structural part (1 1) of said rear part (1), characterized in that said first structural part (1 1) is positioned in the wheel arch (2).
2. Partie arrière (1 ) selon la revendication 1 , caractérisée en ce que la première partie structurelle (1 1 ) forme une chape. 2. Rear part (1) according to claim 1, characterized in that the first structural part (1 1) forms a yoke.
3. Partie arrière (1 ) selon la revendication 2, caractérisée en ce que la chape (1 1 ) est prolongée sous le longeronnet (3) par une seconde partie structurelle (12) qui forme un U. 3. rear part (1) according to claim 2, characterized in that the yoke (1 1) is extended under the beam (3) by a second structural part (12) which forms a U.
4. Partie arrière (1 ) selon la revendication 3, caractérisée en ce que la chape (1 1 ) et la seconde partie structurelle (12) en U sont ouvertes vers le bas du véhicule. 4. Rear part (1) according to claim 3, characterized in that the yoke (1 1) and the second structural part (12) in U are open towards the bottom of the vehicle.
5. Partie arrière (1 ) selon l’une quelconque des revendications 3 ou 4, caractérisée en ce que la seconde partie structurelle (12) est prolongée par une troisième partie structurelle (13) qui s’étend le long d’une paroi latérale (31 ) du longeronnet (3), ladite paroi latérale (31 ) étant positionnée à l’opposée du passage de roue (2). 5. Rear part (1) according to any one of claims 3 or 4, characterized in that the second structural part (12) is extended by a third structural part (13) which extends along a side wall (31) of the beam (3), said side wall (31) being positioned opposite the wheel arch (2).
6. Partie arrière (1 ) selon l’une quelconque des revendications 3 à 5, caractérisée en ce que la chape (1 1 ) et la seconde partie structurelle (12) comportent au moins une partie qui présente deux épaisseurs de tôles. 6. Rear part (1) according to any one of claims 3 to 5, characterized in that the yoke (1 1) and the second structural part (12) comprise at least one part which has two thicknesses of sheets.
7. Partie arrière (1 ) selon l’une quelconque des revendications précédentes, 7. Rear part (1) according to any one of the preceding claims,
caractérisée en ce que la partie haute de la première partie structurelle (1 1 ) s’étend au-dessus de la partie basse de la partie du longeronnet (3) sur laquelle est solidarisée ladite première partie structurelle (1 1 ). characterized in that the upper part of the first structural part (1 1) extends above the lower part of the part of the beam (3) on which said first structural part (1 1) is secured.
8. Partie arrière (1 ) selon l’une quelconque des revendications précédentes, 8. Rear part (1) according to any one of the preceding claims,
caractérisée en ce que l’élément de suspension (4) est formée par une barre Panhard. characterized in that the suspension element (4) is formed by a Panhard bar.
9. Partie arrière (1 ) selon l’une quelconque des revendications précédentes, caractérisée en ce que la première extrémité (41 ) de l’élément de suspension (4) est fixée sur la première partie structurelle (1 1 ) par des moyens de fixation (5) du type à pivot. 9. rear part (1) according to any one of the preceding claims, characterized in that the first end (41) of the suspension element (4) is fixed to the first structural part (1 1) by means of pivot type attachment (5).
10. Véhicule comportant une partie arrière (1 ) selon l’une quelconque des 10. Vehicle comprising a rear part (1) according to any one of
revendications précédentes. previous claims.
EP19823790.1A 2018-11-27 2019-10-09 Rear part of a vehicle comprising a transverse suspension element Withdrawn EP3887179A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1871919A FR3088855B1 (en) 2018-11-27 2018-11-27 REAR PART OF A VEHICLE WITH A TRANSVERSAL SUSPENSION ELEMENT
PCT/FR2019/052386 WO2020109680A1 (en) 2018-11-27 2019-10-09 Rear part of a vehicle comprising a transverse suspension element

Publications (1)

Publication Number Publication Date
EP3887179A1 true EP3887179A1 (en) 2021-10-06

Family

ID=65951743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19823790.1A Withdrawn EP3887179A1 (en) 2018-11-27 2019-10-09 Rear part of a vehicle comprising a transverse suspension element

Country Status (4)

Country Link
EP (1) EP3887179A1 (en)
CN (1) CN113165462A (en)
FR (1) FR3088855B1 (en)
WO (1) WO2020109680A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2644733B1 (en) 1989-03-22 1992-12-04 Peugeot REAR TRAIN OF A MOTOR VEHICLE
US20040104547A1 (en) * 2002-12-03 2004-06-03 Mcfarland Richard L. Pneumatic suspension system for vehicles
US7648149B2 (en) * 2006-07-28 2010-01-19 Chrysler Group Llc Damped Rear Suspension Track Bar

Also Published As

Publication number Publication date
WO2020109680A1 (en) 2020-06-04
FR3088855A1 (en) 2020-05-29
FR3088855B1 (en) 2021-07-16
CN113165462A (en) 2021-07-23

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