Abstract: A motorized drive device for a vehicle seat having a squab in particular with raising, the device comprising an actuator and an actuator housing containing a reduction gear, an output member, mounted to rotate about an axis, the output member comprising a peripheral rim, a friction ring mounted around the output member and rotationally integral with the output member, the friction ring comprising a skirt, the actuator housing comprising an inner bearing optionally provided with a plurality of inner radial protrusions for receiving the skirt, the skirt coming into contact at least against the inner bearing in order to generate a continuous friction between the output member forming a rotating part and the inner bearing forming a fixed part.

Abstract: An adjustment mechanism for a vehicle seat comprising a transmission housing and a slider comprising a first longitudinal guide member. The slider engaging with the transmission housing by means of the first longitudinal guide member.

Abstract: An actuator for a vehicle seat comprises an electric motor in which the rotor rotates first and second output shafts of the electric motor; a first reduction gear rotated by the first output shaft, the first reduction gear having a first gear ratio, and driving a first notched shaft having a first notch pitch; a second reduction gear rotated by the second output shaft, the second gear having a second gear ratio, and driving a second notched having with a second notch pitch.

Abstract: An actuator for a vehicle seat comprises an electric motor in which the rotor rotates first and second output shafts of the electric motor; a first reduction gear rotated by the first output shaft, the first reduction gear having a first gear ratio, and driving a first notched shaft having a first notch pitch; a second reduction gear rotated by the second output shaft, the second gear having a second gear ratio, and driving a second notched having with a second notch pitch.

Abstract: An adjustment mechanism for a vehicle seat comprising a transmission housing and a slider comprising a first longitudinal guide member.

Abstract: An adjustment arrangement for adjusting a vehicle seat component of a vehicle seat comprises an adjusting mechanism for adjusting the vehicle seat component and an electrical drive device. The electrical drive is coupled to the adjusting mechanism for the electrical actuation of the adjusting mechanism.

Abstract: The invention relates to a bracket (20) of a vehicle seat connecting a backrest (12) to a seat portion (11), including a hinge (10) which includes a first flange (3) and a second flange (4) connected to one another by means of inner peripheral teeth (31), thus defining an interface plane (P) perpendicular to the hinging axis and passing through said inner peripheral teeth, a first framework (5) of the backrest connected to the first flange (3) via a first attachment (1), a second framework (6) of the seat portion connected to the second flange (4) via a second attachment (2), the first attachment and the second attachment (1, 2) being arranged on the same side relative to the interface plane (P), the attachments preferably being welds.

Abstract: An adjustment arrangement for adjusting a vehicle seat component of a vehicle seat comprises an adjusting mechanism for adjusting the vehicle seat component and an electrical drive device.

Abstract: A motor-driven hinge device may include a hypocycloid hinge mechanism driven by a drive shaft, two metal side plates intended for connection to the seating portion and to the backrest, a brushless motor, and a planetary gear train positioned between the brushless motor and the drive shaft. The planetary gear train may include a sun gear connected to the motor rotor, and a plurality of planet gears, each planet gear having a first set of teeth engaging with the sun gear and with a first stationary ring gear, and a second set of teeth engaging with a second ring gear rigid with the drive shaft.

Abstract: The invention relates to a device for adjusting seat length, comprising a seat front plate (12) that is movable relative to a seat frame (11), the plate (12) being mounted on a carriage that is slidably guided on a stationary mounting attached above said frame, the carriage and the mounting being situated between the frame and the seat front plate. The device comprises motor-driven control means for controlling the sliding of the carriage relative to the stationary mounting, the motor-driven control means (4) including a motor (43) arranged near the front of the seat, in front of the frame (1) and beneath the path of the seat front plate (12).

Abstract: The invention relates to a bracket (20) of a vehicle seat connecting a backrest (12) to a seat portion (11), including a hinge (10) which includes a first flange (3) and a second flange (4) connected to one another by means of inner peripheral teeth (31), thus defining an interface plane (P) perpendicular to the hinging axis and passing through said inner peripheral teeth, a first framework (5) of the backrest connected to the first flange (3) via a first attachment (1), a second framework (6) of the seat portion connected to the second flange (4) via a second attachment (2), the first attachment and the second attachment (1, 2) being arranged on the same side relative to the interface plane (P), the attachments preferably being welds.

Abstract: Motor-driven hinge device comprising a hypocycloid hinge mechanism (7) driven by a drive shaft (8), comprising two metal side plates (71,72) intended for connection to the seating portion (11) and to the backrest (12), a brushless motor (20), and a planetary gear train (30) positioned between the brushless motor (20) and the drive shaft (8), the planetary gear train comprising a sun gear (6) connected to the motor rotor, and a plurality of planet gears (3), each planet gear comprising: a first set of teeth (31) engaging with the sun gear (6) and with a first stationary ring gear (4), and a second set of teeth (32) engaging with a second ring gear (5) rigid with to the drive shaft (8).

Abstract: Drive device (1) with electric motor and reduction gear driving an output unit (8) in a motor vehicle, comprising a brushless motor (2) having a rotor turning about a rotor axis (Y2) parallel to a main axis (Y), an elliptical reduction gear (3) interposed between the brushless motor (2) and the output unit (8), said elliptical reduction gear comprising an elliptical gear and a deformable flange, deformed by the elliptical gear when it rotates, and a control unit (4) arranged in the immediate proximity of the brushless motor (2) for controlling said brushless motor. Seat frame comprising such a device.

Abstract: The track assembly for a vehicle seat, comprising two parallel tracks, an electric motor, flexible connections connecting the electric motor to the track drive mechanisms and motor support members provided with guides in which the flexible connections are held.

Abstract: A vehicle seat articulation mechanism comprising a first member intended to be connected to the seat part, a second member intended to be connected to the backrest, about an axis of articulation, reduction gearing arranged between an input member and the second member, a piezoelectric motor having a rotor connected to the reduction gearing to drive the rotation of the second member with respect to the first member through the reduction gearing, in which the reduction ratio of the reduction gearing is greater than or equal to 150, and in which the nominal rotational speed of the piezoelectric motor is less than 500 revolutions/min. Seat comprising such a mechanism.

Abstract: An adjustment mechanism for vehicle seat, comprising a gearbox, an eccentric element driven by a driving unit, an eccentric gear wheel rotatably mounted on the eccentric element, a drive output unit equipped with an inner gear ring which cooperates with the eccentric gear wheel by partial engagement of the teeth, a sliding block equipped with a first and a second longitudinal guide, the sliding block cooperating with the eccentric gear wheel by the first longitudinal guide, the sliding block cooperating with the gearbox by the second longitudinal guide, the material of the second longitudinal guide having a lower hardness than the hardness of the material of the eccentric gear wheel.

Abstract: The invention relates to a device for adjusting seat length, comprising a seat front plate (12) that is movable relative to a seat frame (11), the plate (12) being mounted on a carriage that is slidably guided on a stationary mounting attached above said frame, the carriage and the mounting being situated between the frame and the seat front plate. The device comprises motor-driven control means for controlling the sliding of the carriage relative to the stationaly mounting, the motor-driven control means (4) including a motor (43) arranged near the front of the seat, in front of the frame (1) and beneath the path of the seat front plate (12).

Abstract: Drive device (1) with electric motor and reduction gear driving an output unit (8) in a motor vehicle, comprising a brushless motor (2) having a rotor turning about a rotor axis (Y2) parallel to a main axis (Y), an elliptical reduction gear (3) interposed between the brushless motor (2) and the output unit (8), said elliptical reduction gear comprising an elliptical gear and a deformable flange, deformed by the elliptical gear when it rotates, and a control unit (4) arranged in the immediate proximity of the brushless motor (2) for controlling said brushless motor. Seat frame comprising such a device.

Abstract: A vehicle seat articulation mechanism comprising a first member intended to be connected to the seat part, a second member intended to be connected to the backrest, about an axis of articulation, reduction gearing arranged between an input member and the second member, a piezoelectric motor having a rotor connected to the reduction gearing to drive the rotation of the second member with respect to the first member through the reduction gearing, in which the reduction ratio of the reduction gearing is greater than or equal to 150, and in which the nominal rotational speed of the piezoelectric motor is less than 500 revolutions/min. Seat comprising such a mechanism.

Abstract: An adjustment mechanism for vehicle seat, comprising a gearbox, an eccentric element driven by a driving unit, an eccentric gear wheel rotatably mounted on the eccentric element, a drive output unit equipped with an inner gear ring which cooperates with the eccentric gear wheel by partial engagement of the teeth, a sliding block equipped with a first and a second longitudinal guide, the sliding block cooperating with the eccentric gear wheel by the first longitudinal guide, the sliding block cooperating with the gearbox by the second longitudinal guide, the material of the second longitudinal guide having a lower hardness than the hardness of the material of the eccentric gear wheel.