VEHICLE SEAT SWIVEL ASSEMBLY

Abstract

Vehicle seat swivel assembly comprising: - a lower platform (10) configured to be connected to a vehicle floor, - an upper platform (20) mounted to swivel relative to the lower platform (10) about a first axis (A1), - a hinge mechanism (100) by means of which the upper platform (20) is mounted to swivel relative to the lower platform (10) about the first axis (A1), the hinge mechanism (100) having a locked state in which it prevents swiveling of the upper platform (20) relative to the lower platform (10) and an unlocked state in which it allows free swiveling of the upper platform (20) relative to the lower platform (10) about the first axis (A1), - an electric actuator (30) and a transmission (40) configured to ensure the tilting of the hinge mechanism (100) between the locked and unlocked states. Figure 2

Description

Title of the invention: SWIVEL ASSEMBLY FOR VEHICLE SEAT technical field

[0001] This description relates to a swivel assembly for a vehicle seat. This description also relates to a seat comprising such a swivel assembly and to a vehicle, in particular a motor vehicle, comprising such a seat. Previous technique

[0002] In transport vehicles, as shown in Figures IA and 1B, it has already been proposed to allow a seat 10 to be rotated to obtain a lounge-type configuration, i.e., at least one seat 10 facing in a position other than forward (represented by arrows S and S' in Figure 1B). It has also already been proposed to use a vertical pivoting movement to facilitate the entry and exit of passenger(s) into and out of a vehicle when conventional wide access through the door is not available.

[0003] Moreover, in the context of more or less advanced driving delegation situations using autonomous vehicle driving functions, not only the passengers but also the driver may prefer a seat position 10 that is not directly facing the road, and varied and very different seat 10 orientations may prevail inside the passenger compartment.

[0004] A vehicle seat is thus known, with a vertical axis swivel function, the swivel assembly of which comprises a base configured to be connected to the vehicle floor, and a rotating ring mounted on the base by means of an articulation mechanism, interposed between the base and the rotating ring and on which a seat frame is intended to be fixed.

[0005] According to a known embodiment, the rotating ring pivots relative to the base by manual action of a user. In other words, the articulation mechanism is non-motorized. To this end, the assembly includes a control lever intended to be operated by the seat user in order to switch the articulation mechanism between a locked state in which it prevents the rotating ring from pivoting relative to the base and an unlocked state in which it allows the rotating ring to pivot relative to the base.

[0006] However, depending on the vehicle in which the seat is installed, such a control lever may be difficult to access. Furthermore, in some cases, the control lever may be difficult to operate. Summary

[0007] A vehicle seat swivel assembly is proposed comprising: - a lower platform configured to be connected to a vehicle floor, - an upper platform mounted to pivot relative to the lower platform around a first axis extending in a first direction, - an articulation mechanism interposed between the lower plate and the upper plate, through which the upper plate is mounted to pivot relative to the lower plate around the first axis, the articulation mechanism having a locked state in which it prevents pivoting of the upper plate relative to the lower plate and an unlocked state in which it allows free pivoting of the upper plate relative to the lower plate around the first axis, characterized in that it comprises an electric actuator and a transmission, the actuator and the transmission being configured to ensure the switching of the articulation mechanism between the locked state and the unlocked state.

[0008] The transmission may include a control member mounted pivotally relative to the upper plate, the actuator and the transmission being configured to switch the articulation mechanism between the locked state and the unlocked state by pivoting the control member around the first axis respectively between a locked position and an unlocked position.

[0009] The electric actuator may include a fixed part attached to the upper plate and a movable part capable of moving in translation relative to the fixed part in a second direction which is perpendicular to the first direction, the transmission being connected to the movable part so that a translational movement in the second direction of the movable part of the electric actuator causes a pivoting of the control member around the first axis.

[0010] The transmission may include a rod which extends in the second direction, the rod being connected to the moving part of the electric actuator at a first end portion and connected to the control member at a second end portion.

[0011] The second end portion of the rod may have a hook shape, the control member comprising a pin extending along a second axis parallel to the first axis and on which the second end portion of the rod is engaged.

[0012] The articulation mechanism may include: - a first flange attached to the lower plate, - a second flange attached to the upper plate, - a locking device in an internal space defined by the first flange and the second flange, the locking device comprising one or more beads of locking mechanism, each with an external toothed section, the first flange comprising an internal annular toothed section oriented radially inwards and located opposite the external toothed section of each locking bead, each locking bead being adapted to be moved radially between a locking position in which the external toothed section is engaged with the internal toothed section of the first flange and an unlocking position in which the internal toothed section is at a distance from the internal toothed section of the first flange, - a sleeve mounted pivoting around the first axis relative to the second flange, the sleeve being adapted to move said one or more locking grains between their locking position and their unlocking position by pivoting around the first axis.

[0013] The control member can be pivotally fixed around the first axis with the sleeve.

[0014] The control member may include an upper part located above the upper plate, the upper part of the control member preferably having a bell shape which includes a portion of a disc and an annular position on the periphery of the portion of the disc.

[0015] The upper plate may include one or more lugs extending in the first direction towards the upper part of the control member, the upper part of the control member may include one or more grooves extending in the first direction and having an arc shape around the first axis, each lug of the upper plate being received in an associated groove among said one or more grooves of the upper part of the control member, each lug being able to come to rest, on each side according to the direction of pivoting, on a lateral edge of the associated groove to limit the pivoting of the control member relative to the upper plate when the control member pivots around the first axis.

[0016] The control member may include a support leg which is supported on the upper plate in the first direction.

[0017] According to another aspect, a vehicle seat is proposed comprising the swivel assembly as described above. The seat may include a control device configured to control the electric actuator.

[0018] According to another aspect, a vehicle comprising a seat as described above is described. Brief description of the drawings

[0019] Other features, details and advantages will become apparent upon reading the detailed description below, and upon analysis of the accompanying drawings, on which:

[0020] [Fig.1] includes figures IA and IB. Figures IA and IB represent a seat with a vertical pivoting function according to the prior art known.

[0021] [Fig.2] is a schematic perspective view of a pivoting assembly along the This description is intended for a seat with a vertical swivel function.

[0022] [Fig.3] is a larger scale view of the dotted area in [Fig.2].

[0023] [Fig.4] is a partial schematic cross-sectional view of the pivoting assembly of the [Fig.2],

[0024] [Fig.5] is a partially exploded, larger-scale view of the dotted area to [Fig.2], in which a control element of the device is separated from a joint mechanism.

[0025] [Fig.6] is an isolated schematic perspective view of the control unit.

[0026] [Fig.7] is an isolated schematic perspective and cross-sectional view of the organ of control and a sleeve of the articulation mechanism.

[0027] [Fig.8] is an isolated schematic cross-sectional view of the articulation mechanism in a locked state.

[0028] [Fig.9] is an isolated schematic front view of the articulation mechanism.

[0029] [Fig. 10] is a partial schematic cross-sectional view of the pivoting assembly of [Fig.2] which more specifically illustrates a stopping device. Description of the implementation methods

[0030] A pivoting assembly for a vehicle seat with a vertical pivoting function as described with reference to [Fig. 1] is now described with reference to Figures 2 to 10.

[0031] The vehicle seat swivel assembly includes a lower platform 10 configured to be connected to a vehicle floor and an upper platform 20 mounted to pivot relative to the lower platform 10 around a first axis Al extending along a first direction DI.

[0032] In the following description, when reference is made to absolute position qualifiers, such as the terms "front", "back", "top", "bottom", "left", "right", etc., or relative position qualifiers, such as the terms "above", "below", "superior", "lower", etc., or to orientation qualifiers, such as "horizontal", "vertical", etc., reference is made, unless otherwise specified, to the orientation of the figures or the seat in its normal position of use.

[0033] In the following, the longitudinal direction X refers to the longitudinal direction X of the seat. The longitudinal direction X of the seat is considered to be the same as the longitudinal direction X of the motor vehicle in which the seat is mounted. This longitudinal direction X corresponds to the normal direction of travel FW of the vehicle. The longitudinal direction X is preferably horizontal. Transverse Y is the transverse direction Y of the seat. The transverse direction Y of the seat thus corresponds to the transverse or lateral direction Y of the motor vehicle. This transverse direction Y is perpendicular to the normal direction of travel of the vehicle. The transverse direction Y is preferably horizontal. Finally, the vertical direction Z is perpendicular to the longitudinal direction and the transverse direction Y. The vertical direction Z coincides with the direction of the Earth's gravitational field.

[0034] The first direction DI may be close to, or even coincide with, the vertical direction Z. Thus, the first axis Al may be close to, or even coincide with, a vertical axis extending along the vertical direction Z.

[0035] Unless otherwise specified, orientation qualifiers such as "radial" or "circumferential" are defined with reference to the first axis AL. A radial direction is a direction perpendicular to the direction of the first axis AL. A circumferential direction, at a point far from the first axis Al, corresponds to a direction perpendicular to the first direction DI and the radial direction. Furthermore, unless otherwise specified, the adjectives "interior," "internal," "exterior," and "external" are used with reference to a radial direction such that the interior / internal part, i.e., radially interior / internal, of an element is closer to the first axis Al than the exterior / external part, i.e., radially exterior / external, of the same element.

[0036] The lower platform 10 can be configured to be connected directly to the vehicle floor or via a sliding mechanism adapted to move the seat in the longitudinal direction.

[0037] The angular amplitude of the pivoting of the upper plate 20 around the first axis Al relative to the lower plate 10 can be at least equal to 90°, preferably at least equal to 180°, and even more preferably at least equal to 360°. In certain configurations, a multi-turn solution can be obtained.

[0038] The lower plate 10 and / or the upper plate 20 can each be made of material, i.e., monolithic. The lower plate 10 and / or the upper plate 20 can each comprise a principal wall 11; 21 substantially perpendicular to the first direction DI. In other words, the lower plate 10 and / or the upper plate 20 can each comprise a principal wall 11; 21 which extends in a plane perpendicular to the first direction DI.

[0039] The upper plate 20 and the lower plate 10 can define a housing L between them along the first direction DI. In other words, the housing L can be delimited on either side by the lower plate 10 and the upper plate 20 along the first direction DI. The articulation mechanism 100 can be arranged, in whole or in part, in housing L, that is to say between the inner platform and the upper platform 20 along the first direction Dl.

[0040] The pivoting assembly further includes a hinge mechanism 100 interposed between the lower plate 10 and the upper plate 20, and by means of which the upper plate 20 is mounted to pivot relative to the lower plate 10 about the first axis A1. The hinge mechanism 100 thus connects the upper plate 20 to the lower plate 10. The hinge mechanism 100 has a locked state in which it prevents the upper plate 20 from pivoting relative to the lower plate 10, and an unlocked state in which it allows the upper plate 20 to pivot freely relative to the lower plate 10 about the first axis A1. In other words, in the locked state of the hinge mechanism 100, the upper plate 20 is fixed relative to the lower plate 10.

[0041] The articulation mechanism will be described in more detail later.

[0042] The pivoting assembly further includes an electric actuator 30 and a transmission 40. Notably, the actuator and the transmission 40 are configured to enable the pivoting of the articulation mechanism 100 between the locked and unlocked states. The pivoting of the articulation mechanism 100 between the locked and unlocked states can thus be more easily achieved via the electric actuator 30.

[0043] The transmission 40 may include a control member 50, more particularly visible in figures 4 to 7. The control member may be mounted pivotally relative to the upper plate 20. The tilting of the articulation mechanism 100 between the locked state and the unlocked state may be obtained by pivoting the control member 50 around the first axis Al respectively between a locked position and an unlocked position.

[0044] More specifically, the electric actuator 30 may comprise a fixed part 31 attached to the upper plate 20 and a movable part 32 capable of translational movement relative to the fixed part 31 along a second direction D2 that is perpendicular to the first direction DL. The transmission 40 may be connected to the movable part 32 such that a translational movement along the second direction of the movable part 32 of the electric actuator 30 causes the control member 50 to pivot about the first axis AL. The fixed part 31 may be rigidly fixed to a peripheral edge of the upper plate 20. The actuator may be adapted to be electrically connected to a power supply, such as a vehicle battery. The second direction D2 may be close to, or even coincide with, a horizontal direction.The second direction D2 can be variable depending on the pivoting of the upper plate 20 relative to the lower plate 10 around the first axis AL. In other words, the second direction D2. may include a component along the longitudinal direction X and / or along the transverse direction Y depending on the angular position of the upper plate 20 around the first axis Al.

[0045] The transmission 40 may include a rod 41 which extends in the second direction, the rod 41 being connected to the moving part 32 of the electric actuator 30 at a first end portion 42 and connected to the control member 50 at a second end portion 43. The second end portion 43 of the rod 41 may have a hook shape. The control member 50 may also include a pin 55 extending along a second axis A2 parallel to the first axis A1, and on which the second end portion 43 of the rod 4L is engaged. In other words, the second hook-shaped end portion 43 of the rod 41 can be engaged, that is, hooked, on the pin 55. The pin 55 may include an annular groove in which the second hook-shaped end portion 43 of the rod 41 is engaged. Thus, disengagement of the second hook-shaped end portion 43 from the pin 55 is limited, or even prevented.

[0046] The articulation mechanism 100 is now described in more detail, in particular with reference to figures 4, 8 and 9.

[0047] The articulation mechanism 100 may be discontinuous. The articulation mechanism 100 may be non-motorized, i.e., manually operated. In this sense, when the articulation mechanism 100 is in its unlocked state, the second flange 120 can pivot freely about the first axis Al relative to the first flange 110. Consequently, in the unlocked state of the articulation mechanism 100, the upper plate 20 can pivot freely about the first axis Al relative to the second flange 120. An example of a discontinuous articulation mechanism 100 with locking beads 130 is found in document FR2977204, to which reference may be made.

[0048] The articulation mechanism 100 may include a first flange 110 integral with the lower plate 10 and a second flange 120 integral with the upper plate 20. The first flange 110 and the second flange 120 may be rigidly fixed to the upper plate 20 and the lower plate 10, respectively, by welding, screwing, bolting, gluing, or any other suitable fastening method. The first flange 110 and the second flange 120 may have substantially circular shapes. The first flange 110 and the second flange 120 may be connected to each other by an external ring 102, preferably crimped, thus defining an internal space 101 between them along the first direction DI.

[0049] The articulation mechanism 100 may also include a locking device. The locking device may be arranged in the internal space 101 defined by the first flange 110 and the second flange 120. The device of The locking mechanism may include one or more locking grains 130, each having an external toothing 131. Also, the first flange 110 may include an internal annular toothing 112 oriented radially inwards and located opposite the external toothing 131 of each locking grain 130. It is therefore understood that the internal toothing 112 of the first flange 110 is arranged in the internal space 101.

[0050] Each locking bead 130 can be adapted to move radially between a locking position in which the outer teeth 131 are engaged with the inner teeth 112 of the first flange 110 and an unlocking position in which the inner teeth 112 are disengaged from the inner teeth 112 of the first flange 110. When each locking bead 130 is in the unlocking position, the articulation mechanism 100 is in the unlocked state. Conversely, when at least one or more of said locking beads 130 is in the locking position, and preferably when each locking bead 130 is in the locking position, the articulation mechanism 100 is in the locked state.The second flange 120 may include guides suitable for receiving and guiding the locking grains 130 in translation radially relative to the first axis AL. The articulation mechanism 100 may be said to be "discontinuous" in that it allows locking in a large number of discrete positions according to the pitch of the teeth of the toothed crown.

[0051] The articulation mechanism 100 may further include a sleeve 140 mounted pivotally about the first axis Al relative to the second flange 120, the sleeve 140 being adapted to move said one or more locking beads 130 between their locking position and their unlocking position by pivoting about the first axis AL

[0052] The sleeve 140 may include a portion arranged within the internal space 101 defined by the first flange 110 and the second flange 120, which cooperates, directly or indirectly, with said one or more locking beads 130 to move them between their locking position and their unlocking position. The sleeve 140 may extend along the first direction DI through the central hole 121 of the second flange 120 and a central hole 121 of the upper plate 20 such that an upper end portion of the sleeve 140 is arranged above the upper plate 20, i.e., on the side opposite the lower plate 10.

[0053] The sleeve 140 may include a tubular wall 141 extending along the first axis AL. The tubular wall 141 may define a passage 142 along the first axis AL.

[0054] The sleeve 140 may include one or more tabs 143 extending radially, in particular from the tubular wall 141. The second flange 120 may comprising a central hole 121, in particular centered on the first axis Al, defining an edge from which extend, radially outwards and circumferentially around the first axis Al, one or more slots 122. Each leg 143 of the sleeve 140 can be received in an associated slot 122 among said one or more slots 122 of the second flange 120. When the sleeve 140 pivots about the first axis Al, each leg 143 can come abut, on each side according to the direction of pivoting, on a lateral edge of the associated slot 122 to limit the pivoting of the sleeve 140 relative to the second flange 120.

[0055] The control member 50 can be pivotally fixed around the first axis Al with the sleeve 140. The control member 50 can be fitted into the sleeve 140 of the articulation mechanism 100. For this purpose, the control member 50 can include a shaft 54 ​​extending along the first axis Al and received in the sleeve 140 by complementary shape so as to pivotally fix the control member 50 and the sleeve 140 around the first axis AL. More particularly, the shaft 54 ​​of the control member 50 can be received in the tubular wall 141 of the sleeve 140. In other words, the shaft 54 ​​of the control member 50 can extend through the passage 142 defined by the tubular wall 141 of the sleeve 140.

[0056] The control member 50 may include an upper part 51 located above the upper plate 20, the upper part 51 of the control member 50 preferably having a bell shape which includes a portion of a disk 52 and an annular potentiometer at the periphery of the portion of the disk 52. In this sense, the upper part 51 of the control member 50 may be disposed on one side of the upper plate 20 which is opposite the lower plate 10.

[0057] Visible in [Fig.5], the upper plate 20 may include one or more tabs 22 extending along the first direction DI towards the upper part 51 of the control member 50. Complementarily, the upper part 51 of the control member 50 may include one or more grooves 56 extending along the first direction DI and having an arc-shaped form around the first axis AL. Each tab 22 of the upper plate 20 may be received in a groove 56 associated among said one or more grooves 56 of the upper part 51 of the control member 50.Thus, each leg 22 can abut, on each side depending on the direction of pivoting, against a lateral edge of the associated groove 56 to limit the pivoting of the control member 50 relative to the upper plate 20 when the control member 50 pivots about the first axis AL. This limits the angular travel of the control member 50 during pivoting between the locked and unlocked positions. Each groove 56 of the upper part 51 of the control member 50 can be formed at the level of the annular portion 53. in particular by a double wall of the annular portion 53. Each leg 22 of the upper plate 20 can extend along the first direction Dl, from the main wall 21 of the upper plate 20, in a direction opposite to the lower plate 10.

[0058] The control member 50 can be fixed to the sleeve 140 in translation along the first direction Dl. More specifically, the upper part 51 of the control member 50 can be fixed to the sleeve 140 in translation along the first direction Dl. For this purpose, the sleeve 140 can include an annular groove 144, located in particular at the upper end portion of the sleeve 140 which is arranged above the upper plate 20. The annular groove 144 can be arranged on an external face of the tubular wall 141 of the sleeve 140. The control member 50 can include one or more clipping tabs 57, the ends of which are intended to be received by clipping, or elastic fitting, into the annular groove 144 of the sleeve 140. The control member 50 can thus be clipped, or elastically fitted, onto the sleeve 140.

[0059] The control member 50 may further include a support leg 58 which bears on the upper plate 20 along the first direction DL. The support along the first direction DL between the support leg 58 and the upper plate 20 makes it possible to limit, or even avoid, an inclination of the support member relative to the upper plate 20 and therefore relative to the first axis Al, which would prevent it from pivoting correctly around the first axis AL. The support leg 58 may bear on a face of the upper plate 20 that is opposite the lower plate 10. The support leg 58 may be connected to the upper part 51 of the control member 50. The support leg 58 may be configured to slide on the upper plate 20 when the support member pivots around the first axis Al relative to the upper plate 20.

[0060] The control member 50 may include a support 59 for the pin 55. The support 59 may be connected to the upper part 51.

[0061] The control member 50 may be made, in whole or in part, from a material. In this sense, the upper part 51, the shaft 54, the support lug 58, the pin 55 and / or the support 59 may be one piece.

[0062] With reference to [Fig. 10], the pivoting assembly may include a stop device 60 configured to limit the pivoting of the upper plate 20 relative to the lower plate 10 around the first axis Al to a predefined angular amplitude.

[0063] The stop device 60 can be rigidly fixed to the upper plate 20. In this sense, pivoting the upper plate 20 about the first axis Al causes the stop device 60 to pivot about the first axis Al. The stop device 60 may include at least one tab 61 extending along the first direction Dl between the lower plate 10 and the upper plate 20. The first flange 110 The articulation mechanism 100 may include at least one stop 111 extending radially outwards. Said at least one tab 61 may be configured to abut against the stop 111 of the first flange 110 when the upper plate 20 pivots about the first axis Al.

[0064] According to an unrepresented variant, said at least one tongue 61 may comprise a single tongue 61 capable of coming into contact, on each side according to the direction of pivoting, with the stop notch 111 of the first flange 110. According to this variant, the angular amplitude of pivoting around the first axis Al with respect to the lower plate 10 is substantially equal to 360°.

[0065] Alternatively, according to the variant shown in [Fig. 10], said at least one tab 61 may comprise a first tab 61 and a second tab 61 of the stop device 60, each adapted to abut against the stop notch 111 of the first flange 110 when the upper plate 20 pivots about the first axis Al, respectively in a first direction and a second direction about the first axis Al. According to this variant, the angular amplitude of pivoting about the first axis Al relative to the lower plate 10 is equal to the angular sector about the first axis Al delimited by the first tab 61 and the second tab 61 and in which the stop notch 111 of the first flange 110 is located.

[0066] The stop device 60 may include a central portion 62 by which the stop device 60 is fixed to the upper plate 20. Each tab 61 may extend along the first direction DI from a respective end of the central portion 62. The central portion 62 may have an arc-shaped form about the first axis AL. The central portion 62 of the stop device 60 may be located above the upper plate 20. The upper plate 20 may include at least one hole 23 for the passage of said at least one tab 61 through the upper plate 20.

[0067] The seat with vertical swivel function which includes the swivel assembly as described above, may include a control device configured to control the electric actuator 30.

[0068] The control device can be adapted to ensure the movement of the moving part 32 of the actuator relative to the fixed part 31. The seat may include a control connection linking the electric actuator 30 to the control device. The control connection may be, in whole or in part, wired, for example by means of an electrical cable. Alternatively or additionally, the control connection may be, in whole or in part, wireless, for example by means of a wireless telecommunications device.

[0069] The control device can be integrated into the seat. The control device can be located on a seat cushion, on a seat backrest, and / or on a seat armrest.

[0070] The control device may include one or more buttons, for example of the single or double push-button type. Alternatively or additionally, the control device may include a piezoelectric element.

[0071] The control device can thus be easily accessible by a user of the seat.

[0072] The seat as described above can be installed in a vehicle, for example, a motor vehicle. The control device can be integrated into the vehicle, in particular at a distance from the seat. For example, the control device can be located on the vehicle's dashboard, on a vehicle door, or even on the vehicle's ceiling.

Claims

Demands

1. Vehicle seat swivel assembly comprising: - a lower platform (10) configured to be connected to a vehicle floor, - an upper platform (20) mounted to swivel relative to the lower platform (10) about a first axis (Al) extending along a first direction (Dl), - a hinge mechanism (100) interposed between the lower platform (10) and the upper platform (20) and by means of which the upper platform (20) is mounted to swivel relative to the lower platform (10) about the first axis (Al), the hinge mechanism (100) having a locked state in which it prevents swiveling of the upper platform (20) relative to the lower platform (10) and an unlocked state in which it allows free swiveling of the upper platform (20) relative to the lower platform (10) about the first axis (Al),characterized in that it comprises an electric actuator (30) and a transmission (40) configured to ensure the switching of the articulation mechanism (100) between the locked state and the unlocked state.

2. Pivoting assembly according to the preceding claim, wherein the transmission (40) comprises a control member (50) mounted pivotally relative to the upper plate (20), the actuator and the transmission (40) being configured to switch the articulation mechanism (100) between the locked state and the unlocked state by pivoting the control member (50) around the first axis (Al) respectively between a locked position and an unlocked position.

3. A pivoting assembly according to any one of the preceding claims, wherein the electric actuator (30) comprises a fixed part (31) integral with the upper plate (20) and a movable part (32) capable of moving in translation relative to the fixed part (31) in a second direction (D2) which is perpendicular to the first direction (D1), the transmission (40) being connected to the movable part (32) such that a translational displacement in the second direction of the movable part (32) of the electric actuator (30) causes the control member (50) to pivot around the first axis (Al).

4. Pivoting assembly according to the preceding claim, in which the transmission (40) comprises a rod (41) which extends in the second direction, the rod (41) being connected to the movable part (32) of the electric actuator (30) at a first end portion (42) and connected to the control member (50) at a second end portion (43).

5. Pivoting assembly according to the preceding claim, in which the second end portion (43) of the rod (41) has a hook shape, the control member (50) comprising a pin (55) extending along a second axis (A2) parallel to the first axis (Al) and on which the second end portion (43) of the rod (41) is engaged.

6. Pivoting assembly according to any one of claims 2 to 5, wherein the articulation mechanism (100) comprises: - a first flange (110) integral with the lower plate (10), - a second flange (120) integral with the upper plate (20), - a locking device in an internal space (101) defined by the first flange (110) and the second flange (120), the locking device comprising one or more locking grains (130) each having an external toothing (131), the first flange (110) comprising an internal annular toothing (112) oriented radially inwards and located opposite the external toothing (131) of each locking grain (130),each locking bead (130) being adapted to be moved radially between a locking position in which the outer teeth (131) are engaged with the inner teeth (112) of the first flange (110) and an unlocking position in which the inner teeth (112) are separated from the inner teeth (112) of the first flange (110), - a sleeve (140) mounted pivotally about the first axis (Al) relative to the second flange (120), the sleeve (140) being adapted to move said one or more locking beads (130) between their locking position and their unlocking position by pivoting about the first axis (Al), and in which the control member (50) is pivotally fixed about the first axis (Al) with the sleeve (140).

7. Pivoting assembly according to any one of claims 2 to 6, wherein the control member (50) comprises an upper part (51) situated above the upper plate (20), the upper part (51) of the control member (50) preferably having a bell shape which includes a portion of a disk (52) and an annular position on the periphery of the portion of a disk (52).

8. A pivoting assembly according to the preceding claim, wherein the upper plate (20) comprises one or more tabs (22) extending in the first direction (Dl) towards the upper part (51) of the control member (50), the upper part (51) of the control member (50) may comprise one or more grooves (56) extending in the first direction (Dl) and having an arc-shaped form about the first axis (Al), each tab (22) of the upper plate (20) being received in a groove (56) associated among said one or more grooves (56) of the upper part (51) of the control member (50), each tab (22) being adapted to abut, on each side in the direction of pivoting, a lateral edge of the associated groove (56) to limit the pivoting of the control member (50) relative to the upper plate (20) when the control member (50) pivots around the first axis (Al).

9. Pivot assembly according to any one of claims 2 to 9, wherein the control member (50) includes a support leg (58) which is supported on the upper plate (20) in the first direction (Dl).

10. Vehicle seat comprising the swivel assembly according to any one of the preceding claims, the seat comprising a control device configured to control the electric actuator (30).

Images