Access device for a motor vehicle with opposing doors.

Abstract

Access device for a motor vehicle with opposing doors. Access device for a motor vehicle (20) comprising a first door (24) and a second door (26), the first door (24) and the second door (26) being configured opposingly to close the same opening (28), characterized in that the access device (21) comprises a flap (25) attached, in particular rotatably, to one of the doors (24, 26) in a central region of the opening (28), the flap (25) being movable between a closed position enabling the closure of said opening (28) when the first door (24) and the second door (26) are both in the closed position and an avoidance position relative to the other of the doors (24, 26). Figure for the abstract: Fig. 3

Description

Title of the invention: Access device for a motor vehicle with opposing doors.

[0001] The invention relates to an access device for a motor vehicle with opposing doors. The invention also relates to a vehicle having opposing doors equipped with such an access device.

[0002] Motor vehicles are often equipped with access devices comprising several doors on the same side of the vehicle body. Each door is mounted to pivot around a 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 in which two adjacent doors on the same side of the body open in opposite directions of rotation. A single opening in the vehicle body can then be provided, without a central pillar between the two doors. The axis of rotation of the 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 "opposing doors," is generally used for trucks, commercial vehicles, or sports cars with 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. In order to provide lateral support to the vehicle while offering sufficient weatherproofing, the front and rear doors generally interlock when closed, thus providing structural support together.

[0005] However, doors arranged in this way are generally designed so that the user must open the front door before being able to open or close the rear door. This complicates the exit of a rear passenger who must wait for someone to open the front door. In some cases, the rear passenger can fold down the front seat to access the unlocking system for the front door, but this system requires them to perform several preliminary actions to clear the access to the unlocking mechanism.

[0006] There are also motor vehicles with opposing doors equipped with a system that allows said doors to be opened independently of each other. Publication CA2555740A1 discloses independently opening doors for this type of motor vehicle. However, state-of-the-art doors have drawbacks. In particular, a watertight seal at the opening is not always guaranteed, which can be problematic.

[0007] The object of the invention is to provide an access device for a vehicle with opposing doors that allows easier exit for a rear passenger while ensuring a tight seal at the opening when the opposing doors are in the closed position. Another object of the invention is to provide a reliable access device that ensures repeatable door opening and closing over the long term.

[0008] To this end, the invention relates to an access device for a 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, the access device being characterized in that it comprises a flap attached, in particular in rotation, to one of the doors in a central region of the opening, the flap being movable between a closing position allowing the said opening to be closed when the first door and the second door are both in the closed position; and an avoidance position relative to the other of the doors.

[0009] In one embodiment, the access device includes a return means arranged between the shutter and the door to which the shutter is attached, the return means being configured to exert a return force on the shutter so as to move the shutter from its closed position to its avoidance position in order to avoid contact of the shutter with the other door when opening and / or closing the doors of the access device.

[0010] According to one embodiment, each door includes at least one sealing gasket and the shutter is configured to exert pressure on said sealing gaskets when the first door and the second door are both in the closed position.

[0011] According to one embodiment, at least a portion of the periphery of the opening has at least one sealing gasket and the shutter is configured to exert pressure on said at least one sealing gasket when the first door and the second door are both in the closed position.

[0012] According to one embodiment, the shutter attached to one of the first or second doors has a curved profile so as to follow the shape of one end of the other of the first or second doors against which the shutter rests in the closed position.

[0013] According to one embodiment, the flap has a curved profile so as to follow the shape of a rear end of the first door.

[0014] According to another embodiment, the shutter has a curved profile so as to follow the shape of a front end of the second door.

[0015] According to one embodiment, the shutter includes at least one moving member, such as a roller, and the moving member is configured to assist the movement of the shutter from its closed position to its avoidance position or vice versa along a trajectory determined during the opening and / or closing of the door to which the shutter is attached.

[0016] According to one embodiment, the shutter comprises two movement members arranged on edges of the shutter and more particularly arranged in corners of the shutter.

[0017] According to one embodiment, the access device includes at least one guide device configured to cooperate with at least one shutter displacement member to guide the movement of the shutter from its closed position to its avoidance position or vice versa according to the determined trajectory.

[0018] According to one embodiment, the guide device is a guide rail comprising a notch at one of its ends, said notch being configured to receive at least one moving member when the second door is in the closed position.

[0019] According to one embodiment, the guide device is a guide rail comprising an inclined portion configured to cooperate with at least one shutter movement member in order to position the shutter in its avoidance position relative to the door to which the shutter is attached in order to avoid contact with the other door when opening and / or closing the doors of the access device.

[0020] According to one embodiment, the access device includes a stop configured to stop the movement of the shutter in its avoidance position when the door to which the shutter is attached is opened.

[0021] The invention also relates to a vehicle equipped with an access device as described above.

[0022] These objects, features and advantages of the present invention will be described in detail in the following description of a particular embodiment, given by way of non-limiting example, with reference to the accompanying figures, among which:

[0023] Fig. 1 is a partial perspective view of a motor vehicle with opposing doors in the closed position.

[0024] Fig. 2 is a view similar to Fig. 1 and illustrates the motor vehicle with the front door in the half-open position and the rear door in the closed position.

[0025] Fig. 3 is a view similar to Fig. 2 and illustrates the motor vehicle with the rear door in the open position and the front door in the closed position.

[0026] Fig. 4 illustrates the motor vehicle with the two opposing doors in the open position.

[0027] Fig. 5 is a schematic perspective view of a flap.

[0028] Fig. 6 is a detail view of the flap of Fig. 5.

[0029] Fig. 7 illustrates the rear door of the vehicle equipped with the flap of Fig. 5.

[0030] Fig. 8 illustrates the front door of the vehicle.

[0031] Figure 9 is a cross-sectional view of the opening with the two doors in position closed.

[0032] Fig. 10 is a detailed view of the recall means according to a first embodiment.

[0033] Fig. 11 is another detailed view of the elastic element of Fig. 10.

[0034] Figure 12 is a detailed view of the recall means according to a second mode of realization.

[0035] Fig. 13 is a schematic view of one side of the body of the motor vehicle without the opposing doors.

[0036] Fig. 14 is a cross-sectional view of a guiding device.

[0037] Fig. 15 is a detail view of a stop.

[0038] Figures 1 to 4 illustrate a motor vehicle 20 according to an embodiment of the invention. Any type of motor vehicle can be considered within the scope of the present invention. A trihedron with three axes X, Y, Z is illustrated in this [Fig. 1].

[0039] In this document, the X-axis designates the longitudinal axis of the motor vehicle 20. When moving forward in a straight line, the vehicle progresses from rear to front, in a direction parallel to its longitudinal axis. The X-axis is oriented from the front to the rear of the vehicle, that is, in the direction of reverse movement. The Y-axis designates the transverse axis of the vehicle. The Z-axis designates the axis perpendicular to the X-axis and the Y-axis. The vehicle is assumed to be resting on a horizontal surface. The Z-axis is a vertical axis, oriented from bottom to top. The X, Y, and Z axes form an orthogonal coordinate system.

[0040] The motor vehicle 20 has an access device 21 comprising a pair of doors 24, 26 arranged on a lateral side of the body 22 of the motor vehicle 20. The pair of doors comprises a first door 24 located at the front of the motor vehicle 20 and a second door 26 located at the rear of the motor vehicle 20. The two doors 24, 26 extend parallel to the longitudinal axis X of the vehicle 20 when they are in the closed position.

[0041] However, it is understood that the features of the first door 24 located at the front described herein can be incorporated into a rear door and that the features of the second door 26 located at the rear described herein can be incorporated into a front door.

[0042] Furthermore, the features of either of the doors 24, 26 can be incorporated into any door, regardless of its spatial relationship to the front, rear, or side of the motor vehicle 20. For example, such an access device 21 can be installed at the rear of a vehicle, such as an SUV, a goods vehicle, or the like. The two doors 24, 26 could thus extend perpendicularly to the longitudinal axis X of the vehicle and parallel to the transverse axis Y when closed.

[0043] The body 22 includes a door opening 28 (visible in Figures 2 to 4), which is closed in a central region of the opening 28 by the first door 24 and the second door 26, as illustrated in [Fig. 1]. The first door 24 and the second door 26 are therefore configured in an opposing manner to close this same opening 28. To facilitate entry and exit of the occupants of the vehicle 20, the door opening 28 does not have a pillar, i.e., there is no central pillar dividing a front row of seats and a rear row of seats in the passenger compartment.

[0044] A configuration of the motor vehicle 20 in which both doors 24 and 26 are open so as to maximize the opening 28 is illustrated in [Fig. 4]. This configuration illustrates the advantage of the absence of a central pillar: there are fewer obstacles in the opening 28, which is then widened to allow passengers to get in and out of the passenger compartment, thus facilitating entry and exit from the vehicle 20.

[0045] The first door 24 and the second door 26 of the access device 21 are each pivotally connected to the body 22 of the motor vehicle 20. More specifically, the first door 24 is fixed to the vehicle by hinges near a front area of ​​the perimeter of the opening 28. The first door 24 is articulated to the body 22 of the vehicle about a substantially vertical axis 34, so that the first door 24 can be opened in a first direction of opening, from the closed position illustrated in [Fig.1] to the half-open position illustrated in [Fig.2] to the open position illustrated in [Fig.4].

[0046] The first door 24 may include an exterior door handle 36 and an interior door handle to actuate in this case a possible locking device which disengages the rear end 38 of the first door 24 from the body 22.

[0047] The second door 26 pivots about a substantially vertical axis 48 to be opened in a second opening direction opposite to the first opening direction of the first door 24 in order to reach an open position, as illustrated in [Fig. 3]. The second door 26 has a front end 46 located opposite- screw of a rear end 38 of the first door 24 when both doors are in the closed position.

[0048] The access device 21 also includes a flap 25 (illustrated in more detail in [Fig. 5]) attached to one of the two doors 24 or 26 in a central region of the opening 28. In the embodiment illustrated in Figures 2, 3, 4 and 7, the flap 25 is attached to the second door 26 located at the rear of the motor vehicle 20. Alternatively, according to an embodiment not illustrated, the flap 25 can be attached to the first door 24 located at the front of the motor vehicle 20.

[0049] Generally, the flap 25 can be rectangular. However, other shapes are possible, such as a trapezoidal or triangular shape. The flap 25 can be made of plastic or metal.

[0050] The flap 25 is movable between a closed position, allowing the opening 28 to be closed when both the first door 24 and the second door 26 are closed, and an avoidance position relative to the door 26 to which the movable flap 25 is attached. Thus, when both doors 24 and 26 are closed, the flap 25 contributes to closing the opening 28. In its closed position, the flap 25 extends generally in a plane parallel to the planes of the doors 24 and 26 in the closed position. The flap 25 can therefore contribute to lateral support of the vehicle. In this embodiment, it should be noted that, contrary to prior art designs, the first door 24 and the second door 26 do not interlock when they are in the closed position.

[0051] The shutter 25 is linked to the second door 26 by means of a pivot joint formed in particular by at least one hinge 23. Thanks to this at least one hinge 23, the shutter 25 can pivot around an axis of rotation 39 so as to be able to adopt an avoidance position relative to the plane of the door 26 to which the shutter 25 is attached.

[0052] According to a particular embodiment illustrated in [Fig.5], the flap 25 may include two hinges 23 which project towards a lateral side of the flap 25 so as to offset the axis of rotation 39 relative to the body of the flap 25.

[0053] The shutter 25 is moved from its closed position to its avoidance position when the second door 26 to which the shutter 25 is attached is moved from its closed position to its open position. This allows the shutter 25 to be moved away from the first door 24 when the second door 26 is opened in order to prevent contact between the shutter 25 and the other door 24 when doors 24 and 26 are opened and / or closed.

[0054] When the doors 24 and 26 are in the closed position, the flap 25 can also provide a sealing function at the opening 28. To do this, the doors 24, 26 each include at least one sealing gasket 29a.

[0055] Such a sealing gasket 29a is illustrated in particular in [Fig. 7], which schematically represents the second door 26 to which the flap 25 is connected. The sealing gasket 29a extends vertically along the front end 46 of the second door 26. Such a sealing gasket 29a is also illustrated in [Fig. 8], which schematically represents the first door 24 intended to be located at the front of the motor vehicle 20. The sealing gasket 29a extends vertically along the rear end 38 of the first door 24.

[0056] The doors 24, 26 are therefore constructed to accommodate vertical sealing gaskets 29a arranged opposite each other, as illustrated in [Fig. 9]. In this preferred embodiment, the flap 25 is configured to exert pressure on said sealing gaskets 29a when the first door 24 and the second door 26 are both in the closed position.

[0057] More specifically, the long edges of a rectangular flap 25 are configured to exert pressure on the vertical sealing gaskets 29a that border the rear end 38 of the first door 24 on the one hand and the front end 46 of the second door 26 on the other, as illustrated in [Fig. 9]. In this way, the edges of the flap 25 compress the vertical gaskets 29a of the front doors 24 and rear doors 26, thus ensuring the sealing of the opening 28 when said doors 24, 26 are in the closed position.

[0058] Furthermore, at least a portion of the periphery of the opening 28 may include at least one other sealing gasket 29b. This sealing gasket is, for example, mounted on the body 22 of the vehicle 20 so as to cover the entire periphery of the opening 28, as illustrated in [Fig. 13]. In this case, the flap 25 is then configured to exert pressure on said at least one sealing gasket 29b when the first door 24 and the second door 26 are both in the closed position. More specifically, the short edges of the rectangular flap 25 are configured to exert pressure on certain portions of the sealing gasket 29b that borders the opening 28.

[0059] According to a particular embodiment, the flap 25 may have a curved profile, that is to say, the flap may be curved, as illustrated in [Fig. 5]. More specifically, a curved flap 25 is curved in the same way as the second door 26 of the vehicle to which it is attached. In other words, the curved flap 25 follows the shape of a rear end 38 of the second door 26 to which it is attached.

[0060] More specifically, the curved flap 25 is curved in the same way as the first door 24 of the vehicle against which it rests. In other words, the curved flap 25 follows the shape of a rear end 38 of the first door 24.

[0061] Preferably the curve of the rear part of the first door 24 is substantially identical to the curve of the front part of the second door 26.

[0062] Depending on the material chosen for the flap 25, the curved shape of said flap 25 can give it a certain elasticity. In other words, the curved flap 25 can act like an elastic blade, which can increase its pressure on the sealing gasket(s) 29a, 29b. A curved shape of the flap 25 promotes contact between the edges of the flap 25 and the sealing gasket(s) 29a, 29b, which are intended to be compressed by the flap 25 when the first door 24 and the second door 26 are both in the closed position.

[0063] Furthermore, a return means 27 is arranged between the flap 25 and the door 24 or 26 to which the pivoting flap is attached. This return means 27 is configured to exert a return force on the flap 25 so as to move the flap 25 into an avoidance position relative to the door 24, 26 to which the flap 25 is attached in order to prevent contact of the flap 25 with the other door 24 or 26 during the opening and / or closing of the doors 24 and 26 of the access device 21. Such a return means 27 is illustrated in detail in particular in Figures 10 to 12.

[0064] In this embodiment illustrated in figures 10 to 12, a first end 27a of the return means 27 is attached to an inner face of the second door 26 while a second end 27b of the return means 27 is attached to the flap 25.

[0065] In the embodiment illustrated in Figures 10 and 11, the second end 27b of the return means 27 is attached to an insert 41 fixed to a flap face 25. This insert 41 can be considered a hinge. In this way, the second end 27b of the return means 27 can be articulated with respect to the flap 25 independently of the axis of rotation 39. In other words, the second end 27b of the return means 27 pivots about a hinge axis specific to the insert 41, this hinge axis being parallel to the axis of rotation 39 around which the flap 25 pivots.

[0066] In the embodiment illustrated in [Fig. 12], the second end 27b of the return means 27 is attached to a shaft 42 inserted into protrusions 43 of the flap 25. These protrusions 43 form a hinge with the shaft 42 to which the second end 27b of the return means 27 is attached. The shaft 42 extends parallel to the axis of rotation 39 around which the flap 25 pivots. In this embodiment, the return means 27 is more easily accessible, which makes it possible to check its condition during use and to simplify its replacement if necessary.

[0067] In both of these embodiments, the return means 27 is in the form of a helical coil spring. However, other means can be considered for designing the return means 27, such as an elastic band for example.

[0068] As previously stated, the return means 27 is configured to exert a return force on the flap 25 so as to move the flap 25 into an avoidance position relative to the door 26 to which it is attached. Here, "avoidance position" means that the flap 25 is moved from a position in which it is parallel to the plane of the door 24 to which it is attached to a position in which it is inclined relative to said plane of the door 24. In this avoidance position, an angle of inclination between 75° and 85°, and more particularly equal to 80°, can be observed between the flap 25 and the plane of the door 24. Such an avoidance position is shown in [Fig. 10].

[0069] In this way, the return means 27 exerts a restoring force on the flap 25, for example by pulling it, to place it at an angle of approximately 80 degrees relative to the second door 26 to which the flap 25 is attached, in order to prevent the flap 25 from striking the first door 24 when the second door 26 is opened. In this way, a collision between the flap 25 and the first door 24 is avoided. This also allows the second door 26 located at the rear to be opened independently of the first door 24 located at the front, thus giving more freedom to a passenger seated in the rear of the car, as they no longer need to wait for someone to open the first door 24 located at the front before opening the second door 26 located at the rear.

[0070] Various means can be envisaged to facilitate and guide the movement of the shutter 25 when opening the second door 26 to which it is attached in order to prevent the shutter 25 from hitting the first door 24. Thus, according to a preferred embodiment, the shutter 25 includes at least one movement member 31, such as a roller.

[0071] Such a movement member 31 is illustrated in particular in Figures 5 and 6. This movement member 31 is configured to assist the movement of the shutter 25 along a predetermined trajectory during the opening and / or closing of the door 24 or 26 to which the shutter 25 is attached. The term "predetermined trajectory" here refers to a precise and repeatable trajectory of the shutter 25; this predetermined trajectory prevents a collision between the shutter 25 and the first door 24 during the opening and / or closing of doors 24 and 26.

[0072] The movement member 31 thus guides the flap 25 in its movement between its closed position and its avoidance position. More specifically, it guides the flap 25 during the crushing phase of the seals 29a, 29b when closing the second door 26 to which the flap 25 is attached.

[0073] According to a preferred embodiment, the flap 25 comprises two movement members 31 arranged at the edges of the flap 25 and more particularly in the corners of the flap 25. This preferred embodiment of the flap 25 and the movement members 31 is illustrated in Figures 5 and 7. In this preferred embodiment, the movement members 31 are located more particularly at the corners on the side of the free edge of the flap 25, the free edge designating the edge of the flap 25 that is not attached to a door 24 or 26 of the motor vehicle 20.

[0074] The movement member(s) 31 may, for example, be in the form of a plastic wheel. However, other embodiments may be envisaged for the movement member(s) 31, such as articulated strips, commonly called "tracks," for example.

[0075] Furthermore, the access device 21 may include at least one guide device 33 configured to cooperate with at least one movement member 31 to guide the movement of the flap 25 from its closed position to its avoidance position or vice versa, according to the determined trajectory. Such a guide device is illustrated in Figures 13 and 14.

[0076] According to a preferred embodiment, at least one guide device 33 is fixed to the body 22 of the vehicle 20, near the opening 28, at the location of the flap 25 when the doors 24 and 26 are in the closed position. The possible locations for at least one guide device 33 are illustrated in particular in [Fig. 13].

[0077] According to a preferred embodiment, the vehicle 20 comprises two identical guide devices 33, as illustrated more particularly in [Fig. 13]. In this embodiment, the vehicle 20 comprises a first guide device 33 at the top of the body 22, in the periphery of the opening 28, and a second guide device 33 located at the bottom of the body 22, also in the periphery of the opening 28. Each of the guide devices 33 is configured to cooperate with one of the movement members 31 located in the corners of the flap 25 so as to guide said flap 25 from its closed position to its avoidance position or vice versa, according to the determined trajectory.

[0078] The at least one guide device 33 may be in the form of a guide rail comprising a notch 35 at one of its ends. This notch 35 is configured to receive the at least one moving member 31 when the second door 26 is closed, as illustrated in [Fig. 14]. Such a notch 35 allows the at least one moving member 31 to be housed and thus helps to maintain the flap 25 in its closed position. Such a notch 35 therefore helps to secure the position of the flap 25 and helps to limit vibrations of the flap 25 when the motor vehicle 20 is in use for movement.

[0079] Furthermore, the guide device 33 may include an inclined portion 37 configured to cooperate with at least one movement member 31 of the flap 25 in order to position the flap 25 in its avoidance position. The inclined portion 37 guides the movement of the flap 25 during the final stages of closure of the door 26 to which the flap 25 is attached, following a precise and repeatable trajectory, so as to ensure the durability of the access device 21.

[0080] More specifically, the roller that forms the movement member 31 rolls along the guide rail from the notch 35 to the inclined portion 37, or vice versa, to guide the movement of the flap 25 from its closed position to its avoidance position or vice versa, according to the determined trajectory. In other words, the inclined portion 37 is configured such as to bring the flap 25 into its avoidance position, in which said flap 25 extends according to the angle of inclination defined above.

[0081] The guide device 33 thus contributes to positioning the shutter 25 in its avoidance position relative to the door 24 or 26 to which the shutter 25 is attached in order to avoid contact with the other door 24 or 26 when opening and / or closing the doors 24 and 26.

[0082] Furthermore, the access device 21 may include a stop 45 configured to stop the movement of the shutter 25 in its avoidance position when the door 24 or 26 to which the shutter 25 is attached is opened.

[0083] One embodiment of the stop 45 is illustrated in particular in [Fig. 15]. In this illustrated embodiment, the stop 45 resembles a block held by a stop support 47, which itself resembles a folded blade.

[0084] The stop 45 may, for example, be made of a plastic material, so as to absorb the shock when the flap 25 strikes said stop 45 at the end of its travel. Such a stop 45 prevents the flap 25 from damaging the surrounding trim in the passenger compartment of the vehicle 20. The material for the stop support 47 may be a plastic or metallic material. The choice of material for the stop support 47 influences its elasticity.

[0085] In the embodiment illustrated in [Fig. 15], the stop 45 and the stop support 47 are two separate parts. This allows either the stop 45 or the stop support 47 to be replaced individually as needed and depending on the wear of the parts.

[0086] According to an embodiment not illustrated, the stop 45 and the stop support 47 can be formed in the same material and form a single piece.

[0087] It is thus possible to design an opening device 21 for a motor vehicle 20 with opposing doors 24, 26 where the opening device 21 includes a flap 25 which allows the doors 24 and 26 arranged in antagonistic ways in any order and without the flap 25 or the doors 24, 26 colliding in their respective movement.

Claims

Demands

1. An access device for a motor vehicle (20) comprising a first door (24) and a second door (26), the first door (24) and the second door (26) being configured in an opposing manner to close the same opening (28), characterized in that the access device (21) comprises a flap (25) attached, in particular rotatably, to one of the doors (24, 26) in a central region of the opening (28), the flap (25) being movable between a closed position enabling the closure of said opening (28) when the first door (24) and the second door (26) are both in the closed position and an avoidance position relative to the other of the doors (24, 26), and characterized in that it comprises a stop (45) configured to stop the movement of the flap (25) in its avoidance position when the door (26) to which the flap (25) is opened attached.

2. Access device (21) according to the preceding claim, characterized in that it comprises a return means (27) arranged between the shutter (25) and the door (24, 26) to which the shutter (25) is attached, the return means (27) being configured to exert a return force on the shutter (25) so as to move the shutter (25) from its closed position to its avoidance position in order to avoid contact of the shutter (25) with the other door (24, 26) during the opening and / or closing of the doors (24, 26) of the access device (21).

3. Access device (21) according to any one of the preceding claims, characterized in that each door (24, 26) comprises at least one sealing gasket (29a) and in that the flap (25) is configured to exert pressure on said sealing gaskets (29a) when the first door (24) and the second door (26) are both in the closed position.

4. Access device according to any one of the preceding claims, characterized in that the flap (25) attached to one of the first or second doors (24, 26) has a curved profile so as to follow the shape of one end of the other of the first or second doors (24, 26) against which the flap (25) rests in the closed position.

5. Access device according to any one of the preceding claims, characterized in that the flap (25) comprises at least one component movement (31), such as a roller, and in that the movement member (31) is configured to assist the movement of the shutter (25) from its closed position to its avoidance position or vice versa along a trajectory determined during the opening and / or closing of the door (26) to which the shutter (25) is attached.

6. Access device according to the preceding claim, characterized in that the flap (25) comprises two displacement members (31) arranged on edges of the flap (25) and more particularly in corners of the flap (25).

7. Access device (21) according to claim 5 or 6, characterized in that it comprises at least one guide device (33) configured to cooperate with at least one displacement member (31) of the flap (25) to guide the movement of the flap (25) from its closed position to its avoidance position or vice versa according to the determined trajectory.

8. Access device (21) according to the preceding claim, characterized in that the guide device (33) is a guide rail comprising a notch (35) at one of its ends, said notch (35) being configured to receive at least one moving member (31) when the second door (26) is in the closed position.

9. Access device (21) according to claim 7 or 8, characterized in that the guide device (33) is a guide rail comprising an inclined portion (37) configured to cooperate with at least one moving member (31) of the flap (25) in order to position the flap (25) in its avoidance position relative to the door (26) to which the flap (25) is attached in order to avoid contact with the other door (24) when opening and / or closing the doors (24, 26) of the access device (21).

10. Motor vehicle (20), characterized in that it is equipped with an access device (21) according to any one of the preceding claims.

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