Mobile arm for screen in motor vehicle

Abstract

The invention relates to a motor vehicle passenger compartment (14), said passenger compartment comprising at least one seat; a support board (22); a rotating joint (34) configured to rotate relative to the support board; a movable arm connected to the rotating joint, said movable arm (30) having a free end (32) opposite the support board; and a retaining device (28) for a display screen (20) at said free end (32) of the movable arm. The rotating joint (34) comprises a rotating body (38) rotatably mounted relative to the support board (22) and having a through-hole (40) in said rotating body (38), the movable arm (30) being slidably mounted in said through-hole (40) so as to adapt a spacing between the display screen (20) and the support board (22). Figure to be published with the abstract: Figure 2

Description

Title of the invention: Movable arm for screen in motor vehicle

[0001] The invention relates to motor vehicle display screens. The invention deals with the articulation of a display screen in a motor vehicle. The invention provides a passenger compartment with a display screen for a motor vehicle. The invention also relates to a motor vehicle.

[0002] A motor vehicle includes a dashboard equipped with one or more screens. These screens display regulatory data, but also entertainment content. They also serve as human-machine interfaces, generally referred to by the acronym "HMI." A human-machine interface allows certain comfort modules of the motor vehicle to be controlled via a touchscreen. The presence of screens is driven by autonomous driving, which creates new needs, including freeing up space and increasing in-vehicle entertainment.

[0003] A central screen is mounted in a movable manner to optimize its orientation relative to the user. This also allows it to be stored away when not in use.

[0004] Document FR3085898A1 describes a support device for an electronic tablet comprising an articulated arm carrying at one end a support member including fastening means for removably attaching a tablet, a top-opening case, and a lid pivotally mounted on said case. The arm, articulated at its other end to said case, is movable between a retracted storage configuration in which it is entirely housed within the case and an extended operating configuration in which it partially extends above said case, so as to allow the attachment of said tablet or case to said support member. The support member is articulated by a ball joint on the second end of the third tubular section.

[0005] The central screen is advantageously positioned between the driver and the front passenger. Thanks to this placement, the central screen can therefore be used by two people, which reduces the number of display devices in the passenger compartment.

[0006] Document FR3105945B1 describes a vehicle interior comprising: a dashboard, a seat, and a display device fixed to the dashboard. The display device includes a display surface. The display surface is movable between a central position and a position offset towards the seat. The seat is movable in rotation relative to the dashboard between a rest position and a pivoted position. The interior is reversibly configurable between at least one first configuration, in which the display surface is in the central position and the seat is in the rest position, and at least a second configuration, in which the display surface is in the offset position and the seat is in the pivoted position.

[0007] Such a support device provides useful mobility for positioning the tablet in different positions. However, there is a need to further increase the mobility capabilities of a display device.

[0008] The invention aims to address at least one of the problems or drawbacks encountered in the prior art. In particular, the invention aims to increase the mobility of a display screen within a motor vehicle's passenger compartment. The invention also aims to optimize the mobility and safety of a movable display screen arm in a motor vehicle. Furthermore, the invention aims to optimize the mobility, robustness, compactness, and safety of a movable display screen arm in a motor vehicle.

[0009] According to a first aspect, the invention proposes a motor vehicle passenger compartment, said passenger compartment comprising at least one seat; a support board; a rotating linkage configured to rotate relative to the support board; a movable arm connected to the rotating linkage, said movable arm having a free end opposite the support board; a device for holding a display screen at said free end of the movable arm; remarkable in that the rotating linkage comprises a rotating body mounted in a rotatable manner relative to the support board and having a passage through said rotating body, the movable arm being mounted in a sliding manner in said passage through so as to adapt a spacing between the display screen and the support board.

[0010] It will be understood that the invention proposes a ball-jointed slide connecting the support board to the screen or its holding device. This offers increased mobility achieved with a single part, thus optimizing both mobility and costs.

[0011] Preferably, the rotating body is spherical and has a center, said center being in the through passage.

[0012] Preferably, the movable arm includes a retaining end opposite the free end, the rotating link comprising a slide with a slide mounted slidably in the slide, the retaining end being connected to the slide.

[0013] Preferably, the rotating link comprises a worm gear device with a first motor, said worm gear device being coupled to the slide.

[0014] Preferably, the rotating link comprises a retaining ring, the slide being rotatably mounted in the retaining ring.

[0015] Preferably, the rotating linkage comprises a second motor capable of pivoting the slide in the retaining ring, and the slide includes at least one reinforcing hoop.

[0016] Preferably, the movable arm includes an electrical connection in the through passage.

[0017] The through passage is cylindrical, and the movable arm includes a tubular bearing pivotally mounted in the through passage.

[0018] Preferably, the movable arm comprises a cylinder with a telescopic rod receiving the free end, and a tube housing the telescopic rod and mounted in the through passage.

[0019] Preferably, the support board includes an opening, the rotating body being at the level of the opening.

[0020] Preferably, the support board comprises a support block with a retaining ring cooperating in a rotational manner with the rotating body.

[0021] Preferably, the passenger compartment includes a display screen fixed to the free end.

[0022] Preferably, the support board is a dashboard or a center console board.

[0023] Preferably, the support board is a finishing board with a surface delimiting the passenger compartment.

[0024] Preferably, the movable arm includes an electrical connection passing through the through passage.

[0025] Preferably, the arm is mounted in a sliding pivot joint within the through-hole.

[0026] Preferably, the movable arm is mounted to slide within the through-hole.

[0027] Preferably, the rotating body is circular.

[0028] Preferably, the rotating body is a single piece.

[0029] Preferably, the rotating body is in the opening.

[0030] According to another aspect, the invention relates to an assembly for a passenger compartment of A motor vehicle, the assembly comprising a support board; a swivel joint configured to rotate relative to the support board; a movable arm connected to the swivel joint, said movable arm having a free end opposite the support board; a device for holding a display screen at said free end of the movable arm; notable in that the swivel joint comprises a spherical body mounted rotatably relative to the support board and having a passage diametrically through said spherical body, the movable arm being mounted slidably within said passage so as to adjust the spacing between the display screen and the support board. The swivel joint improves mobility, stability, and safety.

[0031] Preferably, the assembly is an interface system.

[0032] According to another aspect, the invention proposes a motor vehicle comprising a passenger compartment; remarkable in that the passenger compartment conforms to the invention; the at least one seat comprises two front seats, the rotating link being transverse between the two front seats.

[0033] According to another aspect, the invention proposes a motor vehicle comprising a passenger compartment with at least one seat, an assembly in the passenger compartment; remarkable in that the assembly conforms to the invention.

[0034] Each feature introduced by the expression "preferably" given in relation to one of the aspects of the invention applies to all other aspects of the invention.

[0035] The invention will be well understood and other aspects and advantages will become clear upon reading the following description, given with reference to the attached figures listed below.

[0036] Fig. 1 is a top view of a motor vehicle according to the invention.

[0037] Fig. 2 shows a motor vehicle passenger compartment according to the invention.

[0038] Fig. 3 represents a movable arm for a motor vehicle display screen according to the invention.

[0039] In the following description, the term "include" is synonymous with "include" and is not limiting in that it permits the presence of other elements in the motor vehicle or other steps in the process to which it relates. It is understood that the term "include" includes the terms "consist of".

[0040] In this description, the terms "longitudinal," "longitudinally," "transverse," and "transversely" are used with respect to the vehicle's frame of reference in the mounting configuration. The term "longitudinal" refers to the principal direction of travel of the vehicle. The term "transverse" refers to a direction perpendicular to the principal direction of travel of the vehicle. The term "front" refers to the principal direction of travel of the vehicle. The term "rear" refers to the opposite of the front of the vehicle.

[0041] The X-axis represents the longitudinal direction, the Y-axis represents the transverse direction, and the Z-axis represents the vertical direction of the motor vehicle. These three axes define a right-handed trihedron whose orientation is preserved throughout the figures.

[0042] In this description, the ranges of values ​​include the bounds that delimit them.

[0043] In this description, the technical characteristics are defined in the passenger compartment mounting configuration, unless otherwise explicitly stated.

[0044] Throughout the description, the different figures use the same reference signs to designate identical entities.

[0045] Figure 1 represents a motor vehicle 10 according to the invention. The motor vehicle 10 comprises energy storage means and at least one motor (not shown) adapted to drive said motor vehicle 10.

[0046] The motor vehicle 10 comprises a structure 12. The structure 12 forms an outer body, or the main frame of the motor vehicle. The structure 12 connects various parts of the motor vehicle 10, including the openings. The structure 12 provides a mounting support for the powertrain, suspension systems, steering system, and braking systems. The structure 12 may be formed from an assembly of stamped and welded sheet metal parts.

[0047] The structure 12 delineates various compartments of the motor vehicle 10, including the passenger compartment 14, the cargo area, and the engine compartment (not shown). The passenger compartment 14 is a central compartment and / or the main compartment of the motor vehicle 10. The passenger compartment 14 is a passenger compartment. It accommodates at least one seat 16, preferably several seats 16. The seats 16 include front seats 18. Each seat is formed by a seat or a bench seat. For clarity, the features present in the passenger compartment 14 are shown with dashed lines.

[0048] The passenger compartment 14 houses at least one display screen 20. The display screen 20 is visible from the front seats 18. It comprises a panel of electrically powered LEDs for displaying information specific to the operation of the motor vehicle 10, as well as multimedia content. The display screen 20 may be a touchscreen, with a surface sensitive to touch pulses and pressure variations. Through this screen, a user can operate certain vehicle controls and make adjustments. The display screen 20 forms an interface system.

[0049] The passenger compartment 14 has a support panel 22. The support panel 22 can be a dashboard 24 or a center console 26. It is a finishing panel with a surface delimiting the passenger compartment 14. The dashboard 24 extends transversely across the entire width of the passenger compartment 14. It can house safety systems, including airbags. The center console 26 extends from the dashboard 24 and between the front seats 18.

[0050] The display screen 20 is connected to the support board 22 by means of a movable arm 30. The movable arm 30 is movable in the sense that it is able to extend and tilt.

[0051] The motor vehicle can, for example, be a private motor vehicle or a commercial motor vehicle.

[0052] Figure 2 shows part of the passenger compartment 14 of a motor vehicle. The vehicle at The vehicle may correspond to the one shown in relation to [Fig. 1]. The support panel 22 is partially shown. In this case, the support panel 22 is a dashboard panel with a curved cross-sectional profile.

[0053] The cabin 14 has a retaining device 28 for a display screen 20. The retaining device 28 includes a tray shape that fits the display screen 20. Alternatively, it includes a screw system directly attached to the display screen.

[0054] A movable arm 30 connects the display screen 20 to the support board 22. For example, the movable arm 30 is attached to the retaining device 28. For this purpose, the movable arm 30 includes a first end. The first end is a free end 32, located at a distance from the support board 22. The free end 32 is connected to the display screen 20 via the retaining device 28. The free end 32 passes through the retaining device 28. It may include a first ball joint coupled to the display screen.

[0055] The movable arm 30 is connected to the support board 22 in a movable manner by means of a mechanical linkage. The mechanical linkage is a rotating linkage 34. The rotating linkage 34 is housed within the support board 22. The support board includes an opening 36. The opening 36 forms a pocket. The opening 36 extends longitudinally.

[0056] The rotating link 34 includes a rotating body 38. The rotating body 38 is, for example, located at the opening 36. This feature improves the perceived quality and compactness of the assembly. The rotating body 38 is mounted to rotate relative to the support board 22. Preferably, the rotating body 38 is located within the opening.

[0057] The rotating body 38 receives the movable arm 30. For this purpose, the rotating body 38 includes a through passage 40 in which the movable arm 30 is arranged. The rotating body 38 is for example circular, the through passage 40 passing through it along its diameter.

[0058] The movable arm 30 is slidably mounted in the through-hole 40. Therefore, the display screen 20 can occupy a multitude of positions. For example, the longitudinal distance of the movable arm 30 is adjusted by sliding it within the rotating body 38. A user can thus modulate the position of the display screen 20 according to their needs, which contributes to ergonomics.

[0059] Furthermore, the rotating body 38 is wider than the movable arm 30. This improves the angular stability of the display screen 20 via the movable arm 30. By adjusting the inner surface of the opening 36 to the outer surface of the rotating body 38, the latter can be locked in a given position following a movement imposed by a user. For example, the opening 36 has an annular bearing surface, like a retaining ring, that clamps the rotating body 38.

[0060] The movable arm 30 has the ability to move through the passage passing through 40, therefore along the extension axis 42 of the movable arm 30. The extension axis 42 corresponds to the main extension of the movable arm 30. It coincides with the axis of the passing through 40. In the event of a frontal collision of the motor vehicle, an occupant is likely to strike the display screen 20. Since the movable arm 30 has the ability to retract into the rotating body 38, the display screen 20 offers less resistance to the occupant. The risk of injury decreases, which contributes to passive safety.

[0061] The rotating link 34 allows the movable arm 30 to rotate by at least 20°, preferably by at least 30°, and more preferably by at least 60°; about at least one axis of rotation, preferably about at least two axes of rotation, and more preferably about three axes of rotation. These rotations are maximum amplitudes of rotation, measured between extreme positions.

[0062] Figure 3 shows a rotating link 34 between a movable arm 30 and a board support 22 of motor vehicle. The motor vehicle may correspond to the one shown in relation to one of figures 1 to 2. The support plate 22 is represented in dotted lines for clarity in order to show the rotating body 38.

[0063] The rotating link 34 is able to rotate relative to the support board 22. The movable arm 30 is attached to the support board 22 via the rotating link 34. The movable arm 30 has a free end opposite the support board 22. The free end is outside the support board 22. It is inside the passenger compartment. It houses a device for holding a display screen (not shown).

[0064] The rotating link 34 includes a rotating body 38 mounted rotatably relative to the support board 22. Furthermore, the rotating body 38 has a through passage 40 running through it. The through passage 40 has opposing inlet and outlet.

[0065] The movable arm 30 is slidably mounted in the through-passage 40 so as to adapt the spacing between the display screen and the support board 22. The movable arm 30 and the rotating body 38 form a sliding joint, preferably a pivoting slide. They define a mechanical joint with one degree of freedom, preferably two degrees of freedom. The rotating body 38 and the support board 22 form a pivot joint, with at least one degree of freedom.

[0066] The rotating body 38 is spherical and has a center 44. The center 44 is the point of symmetry of the spherical rotating body 38. It can be its center of gravity. The center 44 is located in the through-hole 40. Thus, the rotating body 38 and the support plate 22 form a second pivot joint with three degrees of freedom. This improves the mobility of the movable arm 30.

[0067] The movable arm 30 comprises a retaining end 46 opposite the free end (not shown). The rotating link 34 is a complex joint. It It comprises several mechanical linkages. The rotating linkage 34 includes a slide 48 with a slide 50 mounted to slide within the slide 48. The slide 48 forms a guide with a central slot receiving the slide 50. The retaining end 46 is connected to the slide 50. They are fixed by means of a rotating linkage. Thus, the movement of the slide 50 within the slide 48 is not constrained by the inclination of the movable arm 30.

[0068] According to one option of the invention, the rotating linkage 34 comprises a worm gear device 52 with a first motor 54. The worm gear device 52 includes a threaded shaft 56 engaged in the slide 50. The worm gear device 52 is mechanically coupled to the slide 50. The first motor 54 is, for example, controlled by a central unit (not shown) which actuates it and thus moves the display screen by tilting the movable arm 30. The central unit can be an on-board computer of the motor vehicle.

[0069] The rotating link 34 further includes a retaining ring 58. The retaining ring 58 describes a loop. It is connected to the support board 22. The slide 48 is rotatably mounted in the retaining ring 58, which forms its guide. The slide 48 is positioned in the retaining ring 58. Thus, the position of the movable arm 30 is adjustable along another axis of rotation, while maintaining holding stability.

[0070] According to one option, the retaining ring 58 is at a fixed distance from the rotating body 38. This aspect is compensated by the ability of the movable arm 30 to slide in the rotating body 38 when the slider 50 moves along the slide 48.

[0071] According to one option of the invention, the rotating link 34 includes a second motor 60 capable of pivoting the slide 48 in the retaining ring 58 around an axis of rotation 62. The second motor 60 is, for example, controlled by the central unit, which facilitates position adjustment by the user; or according to a predefined user profile.

[0072] The slide 48 includes at least one reinforcing bracket 64. The reinforcing bracket 64 stiffens the slide 48 and limits its deformation during the movement of the slide 50. The second motor 60 is optionally attached to the reinforcing bracket 64. This increases the space available for the movement of the slide 50.

[0073] The movable arm 30 includes an electrical connection 66 in the through-hole 40. The electrical connection 66 passes through the movable arm 30 and the through-hole 40. The electrical connection 66 passes through the optional slide 48 and / or the optional retaining ring 58. The electrical connection 66 includes, for example, an electrical cable. It is connected to the display screen. This connection method improves compactness and preserves the degrees of freedom of the rotating link 34.

[0074] The through passage 40 is cylindrical. The movable arm 30 comprises a reach Tubular 68 is pivotally mounted in the through-hole 40. Thus, the movable arm 30 is free to pivot in the through-hole 40 along the extension axis 42. Therefore, the orientation of the display screen can be changed. It can be positioned in landscape or portrait format.

[0075] The movable arm 30 comprises a cylinder (not shown) with a telescopic rod receiving the free end, and a tube receiving the telescopic rod. The tube is mounted in the through-hole. A cylinder is a mechanism known to those skilled in the art and will not be described further. Arranging the cylinder tube in the through-hole 40 improves compactness. Indeed, the tube that forms the solid part of the cylinder is integrated into the rotating body 38.

[0076] The movable arm 30 is capable of moving relative to the rotating body 38 by at least 10 mm, preferably by at least 30 mm.

[0077] The support plate 22 comprises a support block 70 (partially shown) with a retaining ring 72 that rotates with the rotating body 38. The support block 70 can be attached to the support plate 22 or formed with it. The retaining ring 72 forms a ring or a crown. Its inner surface slides against the outer surface of the rotating body 38. The retaining ring 72 is in the opening 36. The inner surface of the retaining ring 72 partially defines a spherical cavity that conforms to the spherical shape of the rotating body 38.

[0078] According to a preferred embodiment, the rotating body is made of a plastic or composite material. It is a single piece. The plastic material may be a thermoplastic or a thermosetting material. According to a preferred embodiment, the plastic material is selected from the group comprising polypropylene, polyamide, polyphthalamide, polyetheretherketone, polyphenylene sulfide, polyamide-imide, polyetherimide, polyarylamide, polyepoxide, unsaturated polyester, vinyl ester, or polyester-vinylester resins. For example, the composite material comprises a matrix of a plastic material as described above with reinforcement. For example, the reinforcement comprises glass or carbon fibers.

[0079] The rotating body comprises at least 10% by weight of recycled plastic material based on the total weight of the plastic material; preferably from 10 to 80% by weight; more preferably from 20 to 60% by weight or from 30 to 40% by weight. The use of recycled plastic material reduces the vehicle's environmental footprint.

[0080] According to an alternative of the invention, the rotating body comprises a cylindrical shape.

[0081] According to another alternative of the invention, the rotating body is cubic, and forms a ball joint in a spherical housing.

[0082] The invention comprises the combination of all the embodiments illustrated by all the figures.

Claims

Claims

1. Passenger compartment (14) of a motor vehicle (10), said passenger compartment (14) comprising at least one seat (16); a support board (22); a rotating connection (34) configured to rotate relative to the support board (22); a movable arm (30) connected to the rotating connection (34), said movable arm (30) having a free end (32) opposite the support board (22); a device (28) for holding a display screen (20) at said free end (32) of the movable arm (30); characterized in that the rotating connection (34) comprises a rotating body (38) mounted in a rotatable manner relative to the support board (22) and having a through passage (40) said rotating body (38), the movable arm (30) being slidably mounted in said through passage (40) so as to adapt a spacing between the display screen (20) and the support board (22).

2. Cabin (14) according to claim 1, characterized in that the rotating body (38) is spherical and has a center (44), said center (44) being in the through passage (40).

3. Cabin (14) according to one of claims 1 to 2, characterized in that the movable arm (30) comprises a holding end (46) opposite the free end (32), the rotating connection (34) comprising a slide (48) with a slider (50) slidably mounted in the slider (48), the holding end (46) being connected to the slider (50); preferably the rotating connection (34) comprises a worm device (52) with a first motor (54), said worm device (52) being coupled to the slider (50).

4. Passenger compartment (14) according to claim 3, characterized in that the rotating connection (34) comprises a holding ring (58), the slide (48) being rotatably mounted in the holding ring (58); preferably the rotating connection (34) comprises a second motor (60) capable of pivoting the slide (48) in the holding ring (58), and the slide (48) comprises at least one reinforcing hoop (64).

5. Passenger compartment (14) according to one of claims 1 to 4, characterized in that the movable arm (30) comprises an electrical connection (66) in the through passage (40).

6. Passenger compartment (14) according to one of claims 1 to 5, characterized in that the through passage (40) is cylindrical, and the movable arm (30) comprises a tubular bearing surface (68) pivotally mounted in the passage. crossing (40).

7. Passenger compartment (14) according to one of claims 1 to 6, characterized in that the movable arm (30) comprises a jack with a telescopic rod receiving the free end (32), and a tube housing the telescopic rod and mounted in the through passage (40).

8. Passenger compartment (14) according to one of claims 1 to 7, characterized in that the support board (22) comprises an opening (36), the rotating body (38) being at the level of the opening (36); preferably, the support board (22) comprises a support block (70) with a holding ring (72) cooperating in a rotating manner with the rotating body (38).

9. Passenger compartment (14) according to one of claims 1 to 8, characterized in that the passenger compartment (14) comprises a display screen (20) fixed to the free end (32); and / or the support board (22) is a dashboard (24) or a central console board (26).

10. Motor vehicle (10) comprising a passenger compartment (14); characterized in that the passenger compartment (14) is in accordance with one of claims 1 to 9; the at least one seat (16) comprises two front seats (18), the rotating connection (34) being transversely between the two front seats (18).

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