Sealing system for a motor vehicle with opposing doors.

Abstract

Sealing system for a motor vehicle with opposing doors Sealing system (20) for a motor vehicle (10), the motor vehicle comprising two opposing doors (21, 22) each comprising a lining (26, 27), the sealing system (20) being characterized in that it comprises a rotary valve (28) intended to be attached to one of the doors (21, 22), the rotary valve (28) comprising at least one seal (29) and an elastic return element (30) configured to move the rotary valve (28) about an axis of rotation (A) between an extension position in which the rotary valve (28) is arranged flush with the linings (26, 27) when the doors (21, 22) are closed, and a position inclined relative to the door (21, 22) to which the rotary valve (28) is intended to be attached, the inclined position being adopted when said door (21, 22) is open. Figure for the abstract: Fig. 4

Description

Title of the invention: Sealing system for a motor vehicle with opposing doors.

[0001] The invention relates to a sealing system for a motor vehicle with opposing doors. The invention also relates to a door trim equipped with such a sealing system. The invention further relates to a vehicle having opposing doors equipped with such a door trim and / or equipped with such a sealing system.

[0002] Motor vehicles are often equipped with access devices comprising several doors on the same side of a vehicle body. Each door is pivotally mounted about a substantially vertical axis. Generally, adjacent doors on the same side of a vehicle body open in the same direction of rotation relative to the vehicle. These adjacent doors are generally each mounted on an associated pillar.

[0003] There are also motor vehicles with access devices for which two adjacent doors on the same side of the body open in opposite directions of rotation. A single opening in the body of the vehicle can then be provided, without a central pillar between the two doors. The axis of rotation of a first door extends along a front edge of the opening while the axis of rotation of the rear door extends along a rear edge of the opening. This type of arrangement, commonly called "antagonistic doors" is generally used for trucks, utility vehicles, or sports vehicles having more than one row of seats.

[0004] In this particular arrangement, the opening in the body does not include a central pillar between a front row of seats and a rear row of seats. The absence of a central pillar can also make it difficult to ensure that the opening in the body is sealed. In order to provide lateral support to the vehicle while still providing sufficient sealing, the front and rear doors generally fit together when in the closed position and thus together provide structural support.

[0005] Furthermore, doors arranged in an antagonistic manner are generally designed so that the user must open the door located at the front before being able to open or close the rear door. This complicates the exit of a rear passenger who must wait for someone to come and open the front door. In some cases, the rear passenger can fold the seat at the front to access the unlocking system for unlocking the front door himself, but this system requires him to perform several manipulations beforehand to be able to clear access to the unlocking system.

[0006] There are also motor vehicles with opposing doors equipped with an opening system which allows said doors to be opened independently of one another while ensuring the sealing of the opening in the body. Document FR3038263A1 describes a motor vehicle comprising doors arranged in an opposing manner with a seal movable between a deployed position and a retracted position on one of the doors so as to make the doors sealable in the closed position. FR3038263A1 also describes control means for controlling the movement of the seal.

[0007] Documents US2012153678A1 and US2012193938A1 each describe an articulated sealing system which makes it possible to seal the opposing doors of a vehicle when said doors are in the closed position. However, the articulated sealing systems known from the state of the art comprise a multitude of parts, which makes them complex and expensive.

[0008] The object of the invention is to provide a sealing system for a vehicle with opposing doors which on the one hand allows easier exit for a rear passenger while ensuring the repeatability of the opening and closing movement of the doors over the long term and which on the other hand makes it possible to make the sealing suitable at the opening when the opposing doors are in the closed position. The object of the invention is also to provide a compact, reliable access device which is easy to manufacture and install.

[0009] For this purpose, the invention relates to a sealing system for a motor vehicle, the motor vehicle comprising a first door and a second door, the first door and the second door being configured in an antagonistic manner to close the same opening in a body of said motor vehicle, each of the doors comprising a trim, the sealing system being characterized in that it comprises a rotary valve intended to be attached, in particular for rotation, to one of the doors so as to be arranged in particular between the trims of the doors, the rotary valve comprising at least one seal and an elastic return element configured to move the rotary valve about an axis of rotation between an extension position, in which the rotary valve is intended to be arranged flush with the trims of the doors when said doors are closed,and an inclined position relative to the door to which the rotary flap is attached, the inclined position being adopted by the rotary flap when the door to which the rotary flap is attached is opened.

[0010] According to one embodiment, the elastic return element of the rotary valve is a sealing joint comprising a flexible lip.

[0011] According to one embodiment, the elastic return element of the rotary valve is stressed when the rotary valve is in its extension position.

[0012] According to one embodiment, the elastic return element of the rotary valve is at least partially released when the rotary valve is in its inclined position relative to the door to which the rotary valve is intended to be attached.

[0013] According to one embodiment, the rotary valve comprises a base comprising at least one guide structure, such as a light or a groove, which is configured to cooperate with a protruding element carried by the door to which the rotary valve is attached, so that when the rotary valve pivots about the axis of rotation between its extension position and its inclined position, the cooperation between the protruding element and the guide structure guides the rotational movement of the rotary bearing.

[0014] According to one embodiment, the guide structure has a shape in the form of a portion of an ellipse, and in particular a shape in the form of an arc of a circle.

[0015] According to one embodiment, the at least one sealing joint and the elastic return element are arranged on either side of the guide structure.

[0016] According to one embodiment, the at least one seal is a tubular seal which extends along the rotary bearing.

[0017] According to one embodiment, the seal is compressed when the rotary bearing is in its extension position, so as to make the seal between the door fittings suitable when said doors are closed.

[0018] According to one embodiment, the rotary bearing comprises at least one displacement member intended to bear on at least a portion of a periphery of the opening in the body of the motor vehicle, opening opposite which the rotary bearing of the sealing system is intended to be arranged, the displacement member being configured to promote the displacement of the rotary bearing against said portion of the periphery of the opening when the rotary bearing pivots around the axis of rotation between its extension position and its inclined position.

[0019] The invention also relates to a door trim for a motor vehicle, the motor vehicle comprising a first door and a second door configured in an antagonistic manner to close the same opening in a body of said motor vehicle, characterized in that the door trim comprises a sealing system as described previously.

[0020] The invention also relates to a motor vehicle equipped with a sealing system as described above or equipped with a door trim as described above, and characterized in that a periphery of the opening opposite which the rotary bearing of the sealing system is intended to be arranged comprises a rigid portion having a surface treatment configured to promote the movement of the rotary bearing against said rigid portion when the rotary bearing pivots. around the axis of rotation between its extended position and its inclined position.

[0021] These objects, characteristics and advantages of the present invention will be explained in detail in the following description of a particular embodiment made without limitation in relation to the attached figures among which:

[0022] [Fig.1A] illustrates a vehicle with closed opposing doors.

[0023] [Fig.lB] illustrates a vehicle with opposing doors in which the door front is closed and the rear door is open.

[0024] [Fig.2] is a sectional view of the sealing system for a vehicle with antagonistic doors closed.

[0025] [Fig.3] is another sectional view of the sealing system for a vehicle with closed opposing doors.

[0026] [Fig.4] is a sectional view illustrating the movement of the rotary bearing of the sealing system when the first door is being opened.

[0027] [Fig.5] is a detail view of [Fig.4].

[0028] [Fig.6] is a sectional view illustrating the movement of the second door when it is being opened.

[0029] Figures 1A and 1B illustrate a part of a motor vehicle 10 comprising a first door 21 and a second door 22 which are arranged antagonistically to close the same opening 14 in a body 12 of the motor vehicle 10. Any type of motor vehicle 10 can be envisaged within the scope of the present invention. A trihedron with three axes X, Y, Z is illustrated in these [Fig.lA] and 1B. In [Fig.lA], the first door 21 and the second door 22 of the vehicle are closed while in [Fig.lB], the first door 21 located at the front is closed and the second door 22 located at the rear is open.

[0030] In this document, the X axis designates the longitudinal axis of the motor vehicle 10. When moving forward and in a straight line, the vehicle 10 moves from the rear to the front, in a direction parallel to its longitudinal axis. The X axis is oriented from the front to the rear of the vehicle 10, that is to say in the direction of reverse travel. The Y axis designates the transverse axis of the vehicle 10. The Y axis is oriented from left to right, left and right being defined according to the point of view of a driver of the vehicle 10. The Z axis designates the axis perpendicular to the X axis and the Y axis. The vehicle 10 is considered to be resting on horizontal ground. The Z axis is a vertical axis, oriented from bottom to top. The X, Y and Z axes form an orthogonal reference frame. This same reference, defined by reference to a vehicle 10, will also be used to describe the sealing system 20, even considered outside the vehicle 10, since it is intended for mounting according to a specific orientation in the vehicle 10.

[0031] The motor vehicle 10 has a pair of doors 21, 22 arranged on a lateral side of the body 12 of the motor vehicle 10. The pair of doors 21, 22 comprises a first door 21 located at the front of the motor vehicle 10 and a second door 22 located at the rear of the motor vehicle 10. The two doors 21, 22 extend parallel to the longitudinal axis X of the vehicle 10 when they are in the closed position.

[0032] However, it is understood that the features of the first front door 21 described herein may be incorporated into a rear door 22 and that the features of the second rear door 22 described herein may be incorporated into a front door 21.

[0033] Furthermore, the features of either of the doors 21, 22 may be incorporated into any door 21, 22, regardless of their forward, rearward, or lateral spatial relationship to the motor vehicle. For example, such an access device 20 for the doors 21, 22 may be installed at the rear of a vehicle 10, such as a sport utility vehicle, a goods vehicle, or the like. Both doors 21, 22 could thus extend perpendicular to the longitudinal axis X of the vehicle 10 and parallel to the transverse axis Y when in the closed position.

[0034] The body 12 comprises an opening 14 which is closed in a central region of the opening 14 by the first door 21 and the second door 22, as illustrated in [Fig.lA]. The first door 21 and the second door 22 are therefore configured antagonistically to close this same opening 14. To facilitate entry and exit of the occupants of the vehicle 10, the door opening 14 does not have a pillar, that is to say there is no central pillar dividing a front row of seats and a rear row of seats of the passenger compartment. There are therefore fewer obstacles in the opening 14 which is then widened to allow passengers to get in and out of the passenger compartment, which facilitates entry and exit of the vehicle 10.

[0035] The first door 21 is fixed to the vehicle 10 by hinges near a front area of ​​the perimeter of the opening 14. The first door 21 is hinged to the body 12 of the vehicle 10 around a substantially vertical axis, so that the first door 21 can be opened in a first opening direction.

[0036] The first door 21 may comprise an exterior door handle 23 and an interior door handle for actuating in this case a possible locking device which disengages a rear end 25 of the first door 21 from the body 12.

[0037] The second door 22 can be opened in a second opening direction opposite the first opening direction of the first door 21 in order to reach an open position. The second door 22 has a front end 24 located opposite the rear end 25 of the first door 21 when the two doors 21, 22 are in the closed position. On this front end 24 there may be a seal 24a, as illustrated in [Fig.lB]. As illustrated in [Fig.lB], the seal 24a extends along the entire front end 24 of the second door 22. When the doors 21 and 22 are closed, this seal 24a is at least partially crushed by the doors 21 and 22, which at least partially guarantees the sealing of the motor vehicle 10.

[0038] Furthermore, at least a portion of the periphery of the opening 14 may comprise at least one other seal 14a. A portion of this seal 14a is visible in [Fig.lB]. This seal 14a is for example mounted on the body 12 of the vehicle 10 so as to equip the entire periphery of the opening 14. When the doors 21 and 22 are closed, this seal 14a is also at least partially crushed by the doors 21 and 22, which at least partially guarantees the sealing of the motor vehicle 10 all around the opening 14.

[0039] Each of the doors 21, 22 comprises a trim 26, 27 respectively. The trims 26, 27 for the doors 21, 22 may for example take the form of panels arranged inside said doors 21, 22. The trims 26, 27 are visible to a passenger of the vehicle 10 from inside the passenger compartment, they can therefore provide a trim function and possibly a soundproofing function.

[0040] To allow independent opening of the opposing doors 21, 22 of the motor vehicle 10 while ensuring sealing at the opening 14 when the opposing doors 21, 22 are in the closed position, the sealing system 20 comprises a rotary valve 28 attached, in particular rotatably, to one of the doors 21, 22 so as to be arranged between the trims of the doors 21, 22 in a central region of the opening 14. An example of an embodiment of a rotary valve 28 is illustrated in particular in FIGS. 2 to 6. In this embodiment, the rotary valve 28 is attached to the first door 21 located at the front of the motor vehicle 10. However, it is possible to attach a rotary valve 28 to the second door 22 located at the rear. This alternative embodiment is not illustrated in the figures.

[0041] In a preferred embodiment of the sealing system 20, the rotary valve 28 extends along the rear end 25 of the first door 21. The rotary valve 28 thus extends along an axis substantially parallel to the vertical axis Z.

[0042] The rotary valve 28 comprises at least one seal 29. According to a preferred embodiment of the rotary valve 28 of the sealing system 20, the at least one seal 29 is a tubular seal which extends along the rotary bearing 28. Such a tubular seal may prove more aesthetic for a user of the motor vehicle 10 when the user opens the second door 22 located at the rear, because the tubular seal ensures continuity of the trim at the level of the trims 26, 27 of the doors 21, 22.

[0043] The rotary valve 28 comprises an elastic return element 30 configured to move the rotary valve 28 around an axis of rotation A. In Figures 2 to 6, the axis of rotation A around which the rotary valve 28 moves under the effect of the elastic return element 30 is represented by the intersection between two dotted lines.

[0044] More precisely, the rotary valve 28 can move between an extension position and an inclined position relative to the door 21, 22 to which the rotary valve 28 is attached. The axis of rotation A is fixed relative to the door 21, 22 to which the rotary valve 28 is attached.

[0045] In its extended position, the rotary valve 28 is arranged flush with the trims 26, 27 of the doors 21, 22 when said doors 21, 22 are closed. In this extended position, the rotary valve 28 ensures continuity at the trim level with the trims 26, 27 of the doors 21, 22 inside the passenger compartment of the motor vehicle 10. In other words, the rotary valve 28 has an aesthetic advantage when it is in its extended position, when the doors 21, 22 are closed.

[0046] Furthermore, the seal 29 is compressed when the rotary bearing 28 is in its position extending the bearing, so as to make the seal between the linings 26, 27 of the doors 21, 22 suitable when said doors 21, 22 are closed.

[0047] The inclined position is adopted by the rotary valve 28 when the door 21, 22 to which the rotary valve 28 is attached is open. In other words, when the door 21, 22 to which the rotary valve 28 is attached is moved from its closed position to its open position, the rotary valve 28 leaves its extension position to adopt a position in which said rotary valve 28 is inclined relative to the door 21 to which it is attached, as illustrated in [Fig. 4] and in [Fig. 5]. In this way, the rotary valve 28 avoids hitting the other door 22 when the latter remains in the closed position. This maneuver of avoiding the other door 22 by the rotary valve 28 during its movement is more particularly illustrated in [Fig. 4].

[0048] When the rotary valve 28 adopts its inclined position, said rotary valve 28 is no longer aligned with the linings 26, 27 of the doors 21, 22, but inclined relative to the linings 26, 27 so as to avoid striking the other door 22 to which it is not attached when said other door 22 remains in the closed position.

[0049] When the other door 22, the one not connected to the rotary valve 28, is moved from its closed position to its open position, the rotary valve 28 retains its extended position. This is particularly illustrated in [Fig. 6] in which the direction and the opening directions of the second door are represented by a curved dotted line.

[0050] According to one embodiment, the elastic return element 30 is a seal comprising a flexible lip 31. The term “flexible” here designates a lip 31 with elastic qualities which allows it to be curved and / or folded fa quickly when pressure is exerted on said flexible lip 31. Such an elastic return element 30 in the form of a seal reinforces the sealing of the system 20 and protects it against dirt.

[0051] Thus, in the embodiment where the elastic return element 30 of the rotary valve 28 is in the form of a seal comprising a flexible lip 31, said elastic return element 30 is stressed when the rotary valve 28 is in its extended position. The stressed position of the flexible lip 31 of the elastic return element 30 in the form of a seal is notably illustrated in the first photograph of [Fig. 5]. In the absence of a stress exerted on the flexible lip 31, the latter retains a rest position, also known as the nominal position.

[0052] Furthermore, the elastic return element 30 of the rotary valve 28 is at least partially released when the rotary valve 28 is in its inclined position relative to the door 21, 22 to which the rotary valve 28 is attached. By "partially released", it is meant that the tension in the elastic return element 30 of the rotary valve 28 is less than in the stressed state. The released position of the lip 31 of the elastic return element 30 in the form of a seal is notably illustrated in the last photograph of [Fig. 5]. This released position of the lip 31 may correspond to the rest position or nominal position of the lip 31.

[0053] Alternatively, and according to an embodiment not illustrated, the elastic return element 30 may take the form of a spring, or a spring blade, or any element equivalent to an elastic return element.

[0054] In this same [Fig. 5], the second photograph illustrates an intermediate position of the rotary bearing 28, halfway between its extension position and its inclined position. In this inclined position of the rotary bearing 28, the lip 31 of the elastic return element 30 in the form of a sealing gasket is no longer completely constrained, but it is not yet as relaxed as in the last photograph of [Fig. 5].

[0055] In order to facilitate the rotational movement of the rotary valve 28 between its extension position and its inclined position or vice versa, and in order to guarantee repeatability of said movement, the rotary valve 28 may comprise a base 32 comprising at least one guide structure 33, such as a light or a groove. A preferred embodiment of such a guide structure 33 is notably illustrated in [Fig.2], in [Fig.4] and in [Fig.5].

[0056] In the embodiment illustrated in the sectional views of Figures 2, 4 and 5, the guide structure 33 is located at one end of the rotary valve 28. This guide structure 33 does not necessarily extend all along the rotary bearing 28, which is why it is not visible in the sectional view of [Fig.3].

[0057] This guide structure 33 is configured to cooperate with a pro element tuber 34 carried by the door 21, 22 to which the rotary valve 28 is attached, so that when the rotary valve 28 pivots about the axis of rotation A between its extended position and its inclined position, the cooperation between the protruding element 34 and the guide structure 33 guides the rotational movement of the rotary bearing 28.

[0058] According to the preferred embodiment illustrated in [Fig.2], in [Fig.4] and in [Fig.5], the guide structure has a shape in the form of a portion of an ellipse, and in particular an arc of a circle. Such a shape in the form of a portion of an ellipse, and in particular an arc of a circle, makes it possible to best guide the rotation of the rotary bearing around its axis of rotation.

[0059] The protruding element 34 projects from the body 12 of the vehicle 10 or from the trim 26 of the door 21. The protruding element 34 can take the form of a finger configured to be inserted into the guide structure 33 of the base 32 of the rotary valve 28. The protruding element 34 then cooperates with the guide structure 33 to guide the rotational movement of the rotary bearing 28 around its axis of rotation A.

[0060] According to one embodiment of the sealing system 20, the base 32 comprises two separate guide structures 33 arranged at each end of the rotary valve 28. In this embodiment, there are two separate protruding elements 34 which project from the body 12 of the vehicle 10 or from the trim 26 of the door 21 to which the rotary bearing 28 is attached. These two separate protruding elements 34 may face each other. They are preferably arranged on the same axis. The two separate protruding elements 34 each cooperate with one of the two separate guide structures 33 arranged on either side of the base 32 of the rotary valve 28.In this embodiment, having two separate protruding elements 34 which cooperate with two separate guide structures 33 makes it possible to stabilize the movement of the rotary bearing 28 and to reduce the risks of said rotary bearing 28 being misaligned during its rotation around its axis of rotation A.

[0061] In this embodiment of the rotary valve 28, the sealing gasket 29 may be integral with the base 32; for example, it is glued to a surface of the base 32. Similarly, the elastic return element 30 may be integral with the base 32. Here again, a portion of the elastic return element 30 is, for example, glued to a surface of the base 32. In this way, the compactness of the sealing system 20 is optimized.

[0062] In order to maximize the compactness of the sealing system 20, and according to the embodiment illustrated in [Fig. 2] and in [Fig. 5], the at least one sealing joint 29 and the elastic return element 30 of the rotary bearing 28 can be arranged on either side of the guide structure 33. The compactness of the rotary bearing 28 makes it easier to mount it within the sealing system 20 and can contribute to ensuring continuity at the level of the cladding with the door fittings 21, 22 to the interior of the passenger compartment of the motor vehicle 10.

[0063] According to an embodiment not illustrated, the rotary bearing 28 comprises at least one displacement member intended to bear on at least a portion 35 of a periphery of the opening 14 in a body 12 of the motor vehicle 10. The displacement member is then configured to promote the displacement of the rotary bearing 28 against said portion 35 of the periphery of the opening 14 when the rotary bearing 28 pivots about the axis of rotation A between its extension position and its inclined position. The displacement member may be in the form of a caster, for example, or in the form of a skate. The presence of the displacement member makes it possible to ensure the durability of the sealing system 20 over time, while promoting the repetitive movement of the rotary bearing 28 about its axis of rotation A.The displacement member makes it possible to minimize the potentially harmful effects of friction within the sealing system 20, especially at the level of the rotary bearing 28.

[0064] Alternatively, a periphery of the opening 14 in the body 12 of the motor vehicle 10 may comprise a rigid portion 35 which has a surface treatment configured to promote the repetitive movement of the rotary bearing 20 against said rigid portion 35 when the rotary bearing 28 pivots about the axis of rotation A between its extended position and its inclined position. The term “rigid” designates a surface which does not deform when the rotary bearing 28 pivots about the axis of rotation A between its extended position and its inclined position. Here again, such a rigid portion 35 makes it possible to minimize the potentially harmful effects of the friction of the rotary bearing 28 on said portion 35 of the periphery of the opening 14 in the body 12 of the motor vehicle 10, so as to ensure the durability of the sealing system 20.

[0065] It is thus possible to design a sealing system 20 for a motor vehicle 10 with opposing doors 21, 22 which on the one hand allows easier exit for a rear passenger while guaranteeing the repeatability of the opening and closing movement of said doors 21, 22 over the long term and which on the other hand makes it possible to make the sealing suitable at the opening when the opposing doors 21, 22 are in the closed position. This sealing system 20 has the advantage of being compact, reliable, easy to manufacture and to install.

Claims

Claims

1. Sealing system (20) for a motor vehicle (10), the motor vehicle comprising a first door (21) and a second door (22), the first door (21) and the second door (22) being configured in an antagonistic manner to close the same opening (14) in a body (12) of said motor vehicle (10), each of the doors (21, 22) comprising a lining (26, 27), the sealing system (20) being characterized in that it comprises a rotary valve (28) intended to be attached, in particular for rotation, to one of the doors (21, 22) so as to be arranged in particular between the linings (26, 27) of the doors (21, 22), the rotary valve (28) comprising at least one seal (29) and an elastic return element (30) configured to move the rotary valve (28) around an axis of rotation (A) between an extension position, in which the rotary valve (28) is intended to be arranged flush with the fittings (26, 27) of the doors (21,22) when said doors (21, 22) are closed, and an inclined position relative to the door (21, 22) to which the rotary valve (28) is attached, the inclined position being adopted by the rotary valve (28) when the door (21, 22) to which the rotary valve (28) is intended to be attached is open.,

2. Sealing system according to the preceding claim, characterized in that the elastic return element (30) of the rotary valve (28) is a seal comprising a flexible lip (31).

3. Sealing system according to one of the preceding claims, characterized in that the elastic return element (30) of the rotary valve (28) is stressed when the rotary valve (28) is in its extended position, and characterized in that the elastic return element (30) of the rotary valve (28) is at least partially released when the rotary valve (28) is in its inclined position relative to the door (21, 22) to which the rotary valve (28) is intended to be attached.

4. Sealing system according to any one of the preceding claims, characterized in that the rotary valve (28) comprises a base (32) comprising at least one guide structure (33), such as a light or a groove, which is configured to cooperate with a protruding element (34) carried by the door (21, 22) to which the rotary valve (28) is intended to be attached, so that when the rotary valve (28) pivots about the axis of rotation (A) between its extension position and its inclined position, the cooperation between the protruding element tuber (34) and the guide structure (33) guides the rotational movement of the rotary bearing (28).

5. Sealing system according to the preceding claim, characterized in that the guide structure (33) has a shape in the form of a portion of an ellipse, and in particular an arc of a circle shape.

6. Sealing system according to one of claims 4 or 5, characterized in that the at least one sealing gasket (29) and the elastic return element (30) are arranged on either side of the guide structure (33).

7. A sealing system according to any one of the preceding claims, characterized in that the at least one seal (29) is a tubular seal which extends along the rotary bearing (28), and characterized in that the seal (29) is compressed when the rotary bearing (28) is in its extended position, so as to make sealing between the linings (26, 27) of the doors (21, 22) possible when said doors (21, 22) are closed.

8. Sealing system according to any one of the preceding claims, characterized in that the rotary bearing (28) comprises at least one displacement member intended to bear on at least a portion (35) of a periphery of the opening (14) in the body (12) of said motor vehicle (10), opening (14) opposite which the rotary bearing (28) of the sealing system (20) is intended to be arranged, the displacement member being configured to promote the displacement of the rotary bearing (28) against said portion (35) of the periphery of the opening (14) when the rotary bearing (28) pivots about the axis of rotation (A) between its extension position and its inclined position.

9. Door trim for a motor vehicle (10), the motor vehicle comprising a first door (21) and a second door (22) configured antagonistically to close the same opening (14) in a body (12) of said motor vehicle (10), characterized in that the door trim comprises a sealing system (20) according to one of the preceding claims.

10. Motor vehicle (10), characterized in that it is equipped with a sealing system (20) according to one of claims 1 to 8 or equipped with a door trim according to the preceding claim, and characterized in that a periphery of the opening (14) opposite which the rotary bearing (28) of the sealing system (20) is intended to be arranged comprises a rigid portion (35) having a surface treatment configured to promote the movement of the rotary bearing (20) against said rigid portion (35) when the rotary bearing (28) pivots about the axis of rotation (A) between its extended position and its inclined position.

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