WO2020025345A1

WO2020025345A1 - Device for guiding a door of a vehicle

Info

Publication number: WO2020025345A1
Application number: PCT/EP2019/069404
Authority: WO
Inventors: Gregor Hewak; Martin Krbec
Original assignee: Renault S.A.S
Priority date: 2018-08-03
Filing date: 2019-07-18
Publication date: 2020-02-06
Also published as: FR3084618A1; EP3830369A1

Abstract

The invention relates to a device (30) for guiding a door, in particular a side door (31), of a motor vehicle (40), relative to a body structure (41) of a motor vehicle (40), characterised in that the device (30) comprises: - a first means for guiding such a door in a circular translation or substantially in circular translation relative to such a body structure (41) and - a second means for guiding such a door in translation or substantially in translation relative to such a body structure (41).

Description

Device for guiding a vehicle uyrant

The invention relates to a device for guiding an opening of a motor vehicle. The invention also relates to an arrangement comprising such a device. The invention also relates to a body structure comprising such an arrangement and / or such a device. The invention also relates to a motor vehicle comprising such a body structure and / or such an arrangement and / or such a device. The invention finally relates to a method of operating such an arrangement or of such a body structure or of such a motor vehicle.

A motor vehicle comprises openings or doors allowing access to or exit from the passenger compartment. Generally a center leg separates a front opening at one or more front seats from a rear opening at one or more rear seats. Thus, the middle leg limits accessibility both at the front and at the rear. In addition, generally the middle leg supports the link ensuring the pivoting of the rear opening and / or participates in the closing of the front opening and / or in the closing of the rear opening, in particular in the case of rear opening sliding. Such a sliding opening provides substantial access to the passenger compartment without requiring a significant lateral bulk, even in the event of the complete opening of the sliding opening. The movement of such a sliding opening takes place between a closed position in which the opening obstructs an opening and an open position in which the opening extends, for example towards the rear facing a corresponding rear body side, to allow free access to the opening. Thus, the vehicle generally comprises a support and / or guide system for the sliding door. This system generally comprises at least one upper guide arranged in the door opening near a roof, a central guide arranged on the body side and a lower guide arranged in the door opening near a floor. Only the central guide of this system is visible on the body side, in particular when the door is closed, which alters the aesthetics of the motor vehicle.

The object of the invention is to provide a guide device overcoming the above drawbacks and improving the devices of the state of the art. In particular, the invention makes it possible to produce a simple and reliable device, while offering a reduced lateral bulk of the open leaf.

To achieve this objective, the invention relates to a device for guiding an opening, in particular of a side door, of a motor vehicle, relative to a body structure of a motor vehicle, the device comprising:

a first guide means in circular translation or substantially in circular translation of such an opening relative to such a body structure, and

- A second means for guiding in translation or substantially in translation of such an opening relative to such a body structure.

The first guide means can comprise a first arm pivoting with respect to such an opening and / or the first guide means can comprise a second arm pivoting with respect to such a body structure.

The first arm may include a first end pivoting around a first axis relative to such a sash and / or the second arm may comprise a third end pivoting around a third axis relative to such a body structure.

The second guide means may comprise a main rail, in particular a main rail fixed to such a body structure, and a threshold shuttle, the threshold shuttle being able to cooperate with the main rail so as to allow the displacement of the threshold shuttle with respect to the main rail in a third direction for the opening of such an opening and in a fourth direction for the closing.

The second guide means may comprise an opening rail, in particular an opening rail fixed to such an opening, and an opening shuttle, the opening shuttle being able to cooperate with the opening rail so as to allow the movement of the opening rail relative to the opening shuttle in a third direction for the opening of such an opening and in a fourth direction for the closing.

The first arm may comprise a second end pivoting around a second axis relative to the threshold shuttle and / or the second arm may comprise a fourth end pivoting around a fourth axis relative to the sash shuttle.

The first guide means may comprise a guide rail provided with a groove fixed to such a body structure and a guide pin fixed on the first arm, in particular at the second end of the first arm, the guide pin being able to cooperate with the groove.

The first guide means may comprise a lower element provided with a first groove and an upper element provided with a second upper groove fixed on such an opening leaf and rollers mounted in pivot connection on the second arm, in particular at the level of the fourth end of the second arm, in particular at the level of a projection of the fourth end, the rollers being able to cooperate with the first and second grooves.

The invention also relates to an arrangement comprising: a body structure, in particular of a motor vehicle, provided with an opening,

an opening, in particular a side door, intended to obstruct the opening in the closed position of the opening and / or to partially obstruct the opening in the intermediate opening position of the opening and / or to provide access, in particular a full access, to the opening in the opening position of the opening,

the arrangement comprising a device for guiding the opening element as defined above, in particular arranged at the level of a flap of the opening.

The invention also relates to a body structure of a motor vehicle comprising at least one arrangement as defined above and / or at least one device as defined above.

The invention also relates to a vehicle, in particular a motor vehicle, comprising a body structure as defined above and / or at least one arrangement as defined above and / or at least one guide device as defined above.

The invention finally relates to a method of operating an arrangement as defined above or of a body structure as defined above or of a vehicle as defined above, the method comprising:

- an opening phase of the opening including a circular translation or substantially in a first direction and a translation or substantially in a third direction; and

a phase of closing the opening including a translation or substantially in a fourth direction and a circular translation or substantially in a second direction, the first and second senses being opposite and the third and fourth senses being opposite.

The accompanying figures show, by way of example, an embodiment of a vehicle.

Figure 1 is a schematic side view of a motor vehicle according to an embodiment of the invention.

Figure 2 is a partial perspective view of an arrangement of the motor vehicle according to an embodiment of the invention, a rear side door being in the closed position.

Figure 3 is a partial perspective view of the arrangement according to the embodiment of the invention, the rear side door being in the intermediate opening position.

Figure 4 is a partial perspective view of the arrangement according to the embodiment of the invention, the rear side door being in the open position.

Figures 5, 6 and 7 are top views of a guide device according to the embodiment of the invention.

Figures 8, 9 and 10 are perspective views of the guide device according to the embodiment of the invention.

Figure 1 1 is a top view of a guide rail of the guide device according to an embodiment of the invention.

Figure 12 is a perspective view of the guide rail of the guide device according to the embodiment of the invention. Figure 13 is a top view of a lower rail of the guide device according to an embodiment of the invention. Figure 14 is a perspective view of the bottom rail of the guide device according to the embodiment of the invention.

Figure 15 is a front view of the guide device according to the embodiment of the invention.

Figure 16 is a perspective view of the guide device according to the embodiment of the invention.

The direction in which the vehicle moves in a straight line is defined as the longitudinal direction X. By convention, the direction perpendicular to the longitudinal direction X, located in a plane parallel to the ground, is called transverse direction Y. The third direction, perpendicular to the other two, is called vertical direction Z. FIG. 1 illustrates a motor vehicle 40. The motor vehicle 40 comprises a body structure 41. The motor vehicle 40 comprises an opening, for example a rear side door 31, moving by relative to the body structure 41, driver side and / or passenger side. Obviously, the motor vehicle 40 may include more side doors, driver side and / or passenger side.

The motor vehicle 40 according to the embodiment further comprises an arrangement 50 at the rear side door 31 intended to hold and guide the rear side door 31. Note that such an arrangement can be implemented at any other door of the motor vehicle 40. For convenience, in the following, the rear side door 31 is called door 31. The arrangement 50 comprises the body structure 41, for example provided with an opening 42, and the door 31 intended to obstruct the opening 42. Thus, as illustrated in FIG. 2, the door 31 in the closed position PF obstructs opening 42. As illustrated in FIG. 3, the door 31 in the intermediate open position POI partially obstructs the opening 42. As illustrated in FIG. 4, the door 31 in the open position PO offers access, for example full access, to the opening 42. As illustrated in particular in FIGS. 1, 3 and 4, the arrangement 50 comprises a device 30 for guiding the door 31. Preferably this device 30 for guiding is arranged entirely at the level a flap 43 of the opening 42. The device 30 for guiding the door 31 relative to the body structure 41 comprises a first means 32 for guiding in circular translation or substantially in circular translation of the door 31 relative to the body structure 4 1. More specifically, as illustrated in particular in FIGS. 5 to 10, the first guide means 32 comprises a first arm or connecting rod 18. The first arm 18 is pivotally mounted relative to the door 31. Indeed, preferably, the first arm 18 comprises a first end 181 pivoting about a first axis A relative to the door 31. For example, this pivot connection of axis A is arranged between the first end 181 of the first arm 18 and a door support 19. The door support 19 is advantageously provided with one or more holes so as to allow it to be fixed by screws and / or rivets on the door 31. Preferably also, this fixing between the door support 19 and the door 31 is provided from inside the vehicle and / or at the edge of the door 31 so as to be invisible, or at least discreet, in particular when the door 31 is in the closed position PF. The door support 19 has for example a form of angle or square. Advantageously, the first arm 18 comprises a second end 182 pivoting about a second axis B relative to a threshold shuttle 14.

Preferably, the first guide means 32 further comprises a second arm or connecting rod 20. The second arm 20 is pivotally mounted relative to the body structure 41. Indeed, preferably, the second arm 20 comprises a third end 203 pivoting about a third axis C relative to the body structure 41. For example, this pivot link of axis C is arranged between the third end 203 of the second arm 20 and an arm support 2. The arm support 2 has for example a form of yoke. The arm support 2 is fixed to a reinforcement 1 at the flap 43, for example by welding and / or riveting and / or screwing. The reinforcement 1 is itself fixed to the body structure 41. Advantageously, the second arm 20 comprises a fourth end 204 pivoting about a fourth axis D with respect to an opening shuttle 23 or door shuttle 23.

Preferably, the first axis A, the second axis B, the third axis C and the fourth axis D are parallel, or substantially parallel, to the vertical axis Z.

Thus, during the opening of the door 31, in particular between the closed position PF (device 30 illustrated in FIG. 5) and the intermediate open position POI (device 30 illustrated in FIG. 6), the first and second arms 18, 20 are articulated in a first direction S1, illustrated by a curved arrow in FIG. 5.

The device 30 for guiding the door 31 relative to the body structure 41 further comprises a second means 33 for guiding in translation or substantially in translation of the door 31 relative to the body structure 41. Preferably, the second guide means 33 comprises a main rail 6, for example a main rail 6 fixed to the body structure 41. Advantageously, the main rail 6 is fixed to the reinforcement 1, in particular in order to increase the rigidity of the main rail 6. The second means 33 further comprises the threshold shuttle 14. The threshold shuttle 14 cooperates with the main rail 6 of so as to allow the movement of the threshold shuttle 14 relative to the main rail 6. Thus, during the opening of the door 31, in particular between the intermediate open position POI (device 30 illustrated in FIG. 6) and the open position PO (device 30 illustrated in FIG. 7), the threshold shuttle 14 moves along the main rail 6 in a third direction S3, illustrated by a rectilinear arrow in FIG. 6. During the closing of the door 31, the threshold shuttle 14 moves along the main rail 6 in a fourth direction. Preferably, the second guide means 33 also comprises an opening rail 24 or door rail 24 fixed on the door 31. The second guide means 33 further comprises, and the door shuttle 23, the door shuttle 23. The door shuttle 23 cooperates with the door rail 24 so as to allow the movement of the door rail 24 relative to the shuttle door 23. Thus, during the opening of door 31, in particular between the intermediate open position POI (device 30 illustrated in FIG. 6) and the open position PO (device 30 illustrated in FIG. 7), the door rail 24 moves along the door shuttle 23 in a third direction S3, illustrated in FIG. 6. During the closing of the door 31, the door rail 24 moves along the door shuttle carries 23 in a fourth direction.

Advantageously, the first guide means 32 also comprises a guide rail 12. The guide rail 12 is preferably provided with a groove 12 '. As illustrated in FIGS. 11 and 12, the groove 12 ′ may include a border or rib 12 ”. The guide rail 12 is fixed to the body structure 41, for example on the reinforcement 1, by screws and / or rivets passing through the reinforcement 1 and the guide rail 12. Holes can thus be formed on the guide rail 12 for this purpose. The first way 32 guide further comprises a guide pin or pin 17. The guide pin 17 is fixed on the first arm 18, preferably at the second end 182. The guide pin 17 cooperates with the groove 12 'and / or the edge 12 ”so as to effectively guide the second end 182 of the first arm 18, in particular at the start of the passage from the closed position PF of the door 31 to the intermediate open position POI.

Advantageously, the first guide means 32 comprises a lower element 26 with a first groove 26 'and an upper element 25 with a second groove 25'. The lower and upper elements 26, 25, for example of rectangular shape, are fixed to the door 31, for example on either side of the door rail 24. Preferably, the first and second grooves 26 ', 25' are arranged opposite, each describes a portion of the curve and each has a stop 26 ”, 25” also arranged opposite. The second arm 20 can then comprise rollers or rollers 21 mounted in pivot connection on the second arm 20, for example at the fourth end 204 of the second arm 20. Preferably, each roller 21 is arranged on a protrusion 205 of the fourth end 204. The rollers 21 cooperate with the grooves 25 ′, 26 ′ so as to provide firm support for the door 31 when it arrives in the closed position PF from the intermediate open position POI for example. Thus, the fourth end 204 of the second arm 20 finds itself blocked in the door 31 via the cooperation between the rollers 21 and the grooves 25 ', 26' of the upper and lower elements 25, 26. This blocking or locking at the level of the fourth end 204 with the door 31, in particular when the rollers 21 come to the bottom of the grooves 25 ', 26', preferably in contact with the stops 25 ”, 26” offers a certain rigidity to the door 31 inserted at the level of the opening 42. One or more seals between the door 31 and the opening 42 are then correctly deformed and perfectly fulfill their sealing role. Advantageously, as illustrated in particular in FIG. 7, the second arm 20 has at least one curvature. For example, the second arm 20 has a first curvature 201, around a vertical or substantially vertical axis, so that the second arm 20, when the door 31 is in the intermediate open position POI or in the open position PO , or between these two positions, bypasses a rocker panel 44 rear part as illustrated in FIG. 4. Preferably, the second arm 20 has a second curvature 202, around a vertical or substantially vertical axis, intended to allow laterally release the door shuttle 23.

Advantageously, the first arm 18 is planar or substantially planar. The first arm 18 then extends longitudinally, or substantially longitudinally when the door 31 is closed. The first arm 18 then extends transversely, or substantially transversely, when the door 31 is in the intermediate opening position POI or in the open position PO or in between.

An embodiment of an operating method of the arrangement 50 is described below.

The embodiment comprises a phase of opening the door 31 including a circular translation, or substantially a circular translation, in the first direction S1 and a translation, or substantially a translation, in the third direction S3. This opening phase begins with the door 31 in the closed position PF, in other words the first arm 18 extends for example longitudinally, or substantially longitudinally, in other words in a first position.

More specifically, advantageously, a motor 1 1, for example an electric motor, drives in rotation, possibly via a reduction gear and / or a gear train, a drive pulley 10. As illustrated in FIG. 16, a cable 13 is wound around, or partially around, the drive pulley 10. The cable 13 is also wound around a drum, possibly over several turns, or partially around this drum. Advantageously, the cable 13 follows a route on other pulleys and / or deflections with a suitable tension and / or adhesion, in particular on the drum. The drum preferably has an axis coincident, or substantially coincident, with the second axis B of pivoting of the first arm 18 relative to the threshold shuttle 14. The drum is fixed relative to the second end 182 of the first arm 18. Thus , powering up the motor 1 1 causes the cable 13 to run through the rotation of the drive pulley 10 and consequently the movement of the drum. The movement of the drum then generates the pivoting, or circular translation, in the first direction S1 of the first arm 18. In fact, as mentioned above, the guide pin 17, fixed at the second end 182 of the first arm 18, cooperates with the groove 12 'and / or the edge 12 ”of the guide rail 12. Thus, the kinematics of the first arm 18 is described by the displacement of the guide pin 17 in the groove 12' and / or against the edge 12” .

According to an alternative embodiment, the cable 13 could be replaced by a belt, in particular of the notched type.

As mentioned above, the door 31 is fixed to the door support 19 and to the door rail 24. Thus, as illustrated in FIGS. 5, 6 and 7, a gap E between the door support 19 and the door rail 24 remains constant, or substantially constant, regardless of the position of the door 31.

Therefore, the pivoting in the first direction S1 of the first arm 18 generates a pivoting, or circular translation, of the second arm 20 around the third axis C also in the direction S1. Thus, the pivoting of the second arm 20 takes place between the third end 203 of the second arm 20 and the arm support 2. In other words, the second arm 20 is driven by the first arm 18.

As mentioned above, the arm support 2, at which the third end 203 of the second arm 20 is articulated, is fixed relative to the body structure 41. Note that the pivoting of the first arm 18 takes place up to an angle of 90 degrees, or substantially 90 degrees, in other words between the first position in which the first arm extends in a substantially longitudinal direction and a second position in which the first arm extends in a substantially transverse direction. Once this second position has been reached by the first arm 18, it is the threshold shuttle 14 which then moves along the main rail 6, towards the second arm 20. In fact, although the first arm 18 is finished pivoting , the second arm continues to pivot until it reaches a pivoting stopper 22. This stopper 22, for example made of rubber and in two parts as illustrated in FIG. 8, is preferably fixed at the third end 203 and comes into contact with the rear underbody 44, and / or with a part fixed to the body structure 41. Alternatively, the stopper 22 can be fixed on the rear underbody and can come into contact with the third end 203 of the second arm 20. The stopper 22 is preferably arranged so that the third end 203 extends transversely or substantially transversely when the stopper 22 is in contact with the rear rocker panel 44. During the pivoting of the second arm 20, it should be recalled that the rollers 21 move within the grooves 25 ', 26' formed in the upper and lower elements 25, 26. Thus the fourth end 204 of the second arm 20 is locked on the upper and lower elements, and therefore on the door 31 during pivoting. Note that this pivoting of the second arm 20 and this translation of the first arm 18 via the threshold shuttle 14 are always due to the movement of the cable 13 driving the drum fixed to the first arm 18. The door 31 then reaches the intermediate opening position POI, as illustrated in FIG. 3.

The door 31 can then pass from the intermediate open position POI to the open position PO. To do this, follows a translation or substantially a translation of the door 31 in a third direction S3 as illustrated in Figure 7. The door 31 translates relative to the body structure 41 towards the rear of the motor vehicle 40 in the illustrated case. The rollers 21 being taken out or released from their respective grooves in the lower and upper elements 26, 25 fixed to the door rail 24, the door rail 24 is free to move relative to the door shuttle 23. As a reminder, the door shuttle 23 is arranged in pivoting along, or substantially along, the fourth axis D relative to the fourth end 204 of the second arm 20. Thus, the passage of the cable 13 continues to drive the threshold shuttle 14 along the main rail 6 which generates a movement of the door rail 24 relative to the door shuttle 23. Once this movement, substantially a translation, completed, the door 31 reaches the open position PO, always parallel or substantially parallel to the body side and this time offers maximum access to the passenger compartment via the opening 42, as illustrated in FIG. 4. Preferably, an opening limit switch 4 is arranged at the main rail ipal 6, for example near the arm support 2, so as to detect the position of the threshold shuttle 14 corresponding to the open position PO of the door 31. Thus, the contact or even the detection of the threshold shuttle 14 relative to the limit switch 4 cuts the power supply to the motor 1 1 which stops the running of the cable 13. Obviously, the stopping of the motor can be sufficiently anticipated early to take into account possible games in the transmission of movements.

The displacement or translation between the intermediate open position POI and the open position PO of the door 31, in other words the travel of the rail door 24 relative to the door shuttle 23 is for example between 50 mm and 350 mm, preferably of the order of 200 mm. The travel of the rail is for example subject to the size of the door and that of the wheelbase of the vehicle.

The embodiment of the operating method of the arrangement 50 includes a phase of closing the door 31 including a translation, or substantially a translation, in a fourth direction, opposite to the third direction S3. The closing phase begins while the door 31 is in the open position PO, that is to say that the door 31 extends substantially parallel to the rear body side in the case illustrated, in particular in FIG. 4. The first arm 18 then extends transversely or substantially transversely.

Energizing the motor 1 1, in a direction of rotation opposite to that used for the opening phase, causes the cable 13 to run also in the opposite direction. The drum fixed to the second end 182 of the first arm 18 is then driven in displacement. The guide pin 17 being against the edge 12 ”, the first arm 18 cannot pivot. Also, the movement of the drum causes the threshold shuttle 14 to translate along the main rail 6. The door rail 24 then translates relative to the door shuttle 23. Once the door rail 24 reaches the end stroke relative to the door shuttle 23, for example in contact with a stop formed in the door rail 24, the door 31 is in the intermediate open position POI. The threshold shuttle 14 is itself capable of translating along the main rail 6.

As the cable 13 continues to run, the threshold shuttle 14 translates, the guide pin 17 still being against the edge 12 "and preventing the first arm 18 from pivoting. The door 31 being fixed at the first end 181 of the first arm 18 and at the fourth end 204 of the second arm 20, the translation of the first arm 18 still extending transversely, causes the second arm 20 to pivot. Note that the pivoting of the second arm 20 causes the rollers 21 to be inserted into the grooves 25 ', 26'.

Once the guide pin 17 arrives at the groove 12 ’, the first arm 18 generates a circular translation or substantially. In other words, the first arm 18 pivots in a second direction, opposite to the first direction S1. In fact, the guide pin 17 cooperates in the groove 12 ′ due to the drive of the drum by the cable 13. The second arm 20 then continues to pivot until the rollers 21 come against the stops 25 ”, 26 ”from grooves 25 ', 26'. Thanks to the cooperation of the rollers in the grooves, the door 31 is held firmly and pressed against the perimeter of the opening 42. In fact, the protrusions 205 generate a lever arm around the fourth axis D, or substantially around the fourth axis D, and thus create forces which are reflected between the rollers 21 and the grooves during pivoting, and consequently a force on the door 31. The door 31 is then in the closed position PF. Advantageously, a closing limit switch is arranged at the front of the main rail 6 in the illustrated case so as to allow the engine 1 1 to stop when the threshold shuttle 14 is in contact with or near this limit switch. Seals ensuring the seal between the perimeter of the opening 42 and the door 31 are then perfectly compressed. These seals can be fixed on the perimeter of the opening 42 and / or on the door 31.

The arrangement 50 makes it possible to dispense with a central rail for holding and / or guiding the door 31. The aesthetics of the motor vehicle 41 is improved.

Given the circular translational movement between the intermediate open position POI and the closed position PF of the door 31, the joints, in particular at the front of door 31, are not sheared.

In addition, the door 31 can be opened and / or closed independently of a front door adjoining it.

Finally, the arrangement 50 makes it possible to dispense with a middle foot, the door 31 being maintained and guided at the level of the flap 43 of the opening 42, while ensuring the sealing of the door 31. In addition, the door 31 retains its mechanical strength.

Although an arrangement 50 has been described which has a side door 31 arranged at the rear, the invention can be adapted to an opening arranged at the front, for example a front side door on the driver side or on the passenger side. The opening of such a front side door can for example be done towards the front of the vehicle, in particular in the case of a vehicle equipped with the embodiment of the arrangement 50 described above.

As a note, the solution according to the invention therefore achieves the desired object of improving the aesthetics of a vehicle while limiting the size of an opening leaf in the open position, in particular extending along the body side. face of which the door moves to open, and has the following advantages:

- it includes few parts;

- It can be adapted to any type of vehicle equipped with at least one side door, such as for example heavy goods vehicles, buses, trains, or even planes.

Claims

claims

1. Arrangement (50) comprising:

- a body structure (41), in particular of a motor vehicle (40), provided with an opening (42),

an opening, in particular a side door (41), intended to obstruct the opening (42) in the closed position (PF) of the opening and / or to partially obstruct the opening (42) in the intermediate opening position ( POI) of the opening and / or to offer access, in particular full access, to the opening (42) in the opening position (PO) of the opening,

characterized in that the arrangement (50) comprises a device (30) for guiding the opening element arranged at the level of a flap (43) of the opening (42) so that the opening element is maintained and guided level of such a flap (43), the device (30) comprising:

- a first means (32) for guiding in circular translation or substantially in circular translation of the opening relative to the body structure (41), and

a second means (33) for guiding in translation or substantially in translation of the opening relative to the body structure (41), the first guiding means (32) comprising a first arm (18) pivoting relative to the opening and a second arm (20) pivoting relative to the body structure (41).

2. Arrangement (50) according to the preceding claim, characterized in that the first arm (18) comprises a first end (181) pivoting about a first axis (A) relative to such an opening and / or in that the second arm (20) comprises a third end (203) pivoting about a third axis (C) relative to such a body structure (41).

3. Arrangement (50) according to one of the preceding claims, characterized in that the second guide means (33) comprises a main rail (6), in particular a main rail (6) fixed on such a body structure (41 ), and a threshold shuttle (14), the threshold shuttle (14) cooperating with the main rail (6) so as to allow the displacement of the threshold shuttle (14) relative to the main rail (6) in a third direction (S3) for the opening of such an opening and in a fourth direction for closing.

4. Arrangement (50) according to one of the preceding claims, characterized in that the second guide means (33) comprises an opening rail (24), in particular an opening rail (24) fixed on such an opening , and an opening shuttle (23), the opening shuttle (23) cooperating with the opening rail (24) so as to allow the movement of the opening rail (24) relative to the shuttle opening (23) in a third direction (S3) for the opening of such an opening and in a fourth direction for closing.

5. Arrangement (50) according to claims 3 and 4, characterized in that the first arm (18) comprises a second end (182) pivoting about a second axis (B) relative to the threshold shuttle (14) and / or in that the second arm (20) comprises a fourth end (204) pivoting about a fourth axis (D) relative to the sash shuttle (23).

6. Arrangement (50) according to the preceding claim, characterized in that the first guide means (32) comprises a guide rail (12) provided with a groove (12 ') fixed to such a body structure (41) and a guide pin (17) fixed on the first arm (18), in particular at the second end (182) of the first arm (18), the guide pin (17) cooperating with the groove (12 ').

7. Arrangement (50) according to one of claims 5 or 6, characterized in that the first guide means (32) comprises a lower element (26) provided with a first groove (26 ') and an upper element ( 25) provided with a second groove (25 ') fixed to such an opening and rollers (21) mounted in pivot connection on the second arm (20), in particular at the level of the fourth end (204) of the second arm (20 ), in particular at the level of a projection (205) of the fourth end (204), the rollers (21) cooperating with the first and second grooves (26 ', 25').

8. body structure (41) of a motor vehicle (40), characterized in that it comprises at least one arrangement (50) according to any one of the preceding claims.

9. Vehicle, in particular motor vehicle (40), characterized in that it comprises a body structure (41) according to the preceding claim, and / or at least one arrangement (50) according to one of claims 1 to 7.

10. A method of operating an arrangement (50) according to any one of claims 1 7 or a body structure (41) according to claim 8 or a vehicle according to claim 9, characterized in that He understands :

- an opening phase of the opening including a circular translation or substantially in a first direction (S1) and a translation or substantially in a third direction (S3); and - a phase of closing the opening including a translation or substantially in a fourth direction and a circular translation or substantially in a second direction,

the first and second senses being opposite and the third and fourth senses being opposite.