Clutch-based adjustment mechanism for motorized multi-way seat adjustment An adjustment mechanism comprises multiple screw shafts (111, 112, 113) and a motor (150) for driving the screw shafts. Further, the adjustment mechanism comprises a clutch mechanism (160) for selectively engaging the motor (150) with one or more of the screw shafts (111, 112, 113). A rotation of one or more of the screw shafts (111, 12, 113) caused by the motor (150) translates into adjustment of the seat according to a first degree of freedom. A rotation of one or more others of the screw shafts (111, 12, 113) caused by the motor (150) translates into adjustment of the seat according to a second degree of freedom.

An adjustment mechanism for a seat comprises at least one screw shaft (111, 112) and a motor for driving the at least one screw shaft (111, 112). Further, the adjustment mechanism comprises at least one nut element (121, 122) engaged with the at least one screw shaft (121, 122) in such a way that a rotation of the at least one screw shaft (111, 112) caused by the motor translates into a linear motion of the at least one nut element (121, 122). In a first range of the linear motion of the at least one nut element (121, 122) the linear motion translates into adjustment of the seat according to a first degree of freedom, and in a second range of the linear motion of the at least one nut element (121, 122) the linear motion translates into adjustment of the seat according to a second degree of freedom.

A structural component may have a carrier structure and a substructure arranged on the carrier structure and having a variable contour. The substructure may have an adjustment mechanism with a plurality of adjustment elements. The adjustment mechanism may be configured to adjust the adjustment elements between a compressed position and an expanded position in order to vary the contour.

A power slide includes a left slide and a right slide, each including a top rail, a bottom rail, a lead screw and an electric motor. The top rail is arranged above the bottom rail and is slidably connected to the bottom rail, and a notch is formed in a middle portion of the top rail. The lead screw is arranged above the bottom rail in parallel and has two ends fixedly connected to the bottom rail. The electric motor includes a housing, a rotor shaft and a stator shaft. The housing is mounted in the notch, the stator shaft is fixedly connected into the housing, the rotor shaft penetrates into the stator shaft and is rotatably connected to the stator shaft, and an interior of the rotor shaft is threadedly connected to the lead screw.

Provided is an electrically powered slide rail that can operate in a smooth manner. The electrically powered slide rail includes a rail having a channel-shaped cross section and extending in a fore and aft direction, a slider received by the rail and slidably engaged by the rail, a screw assembly including a screw member supported by the slider so as to be rotatable around an axial line extending in the fore and aft direction, an electric motor supported by the slider and configured to rotate the screw member, and a screw engaging portion formed in the rail so as to extend in the fore and aft direction and engage the screw member. In the vehicle seat fitted with the electrically powered slide rail, the rail is connected to a floor of a vehicle, and the slider is connected to a seat cushion.

Provided is an electrically powered slide rail that can operate in a smooth manner. The electrically powered slide rail includes a rail having a channel-shaped cross section and extending in a fore and aft direction, a slider received by the rail and slidably engaged by the rail, a screw assembly including a screw member supported by the slider so as to be rotatable around an axial line extending in the fore and aft direction, an electric motor supported by the slider and configured to rotate the screw member, and a screw engaging portion formed in the rail so as to extend in the fore and aft direction and engage the screw member. In the vehicle seat fitted with the electrically powered slide rail, the rail is connected to a floor of a vehicle, and the slider is connected to a seat cushion.

The invention relates to a method for assembling a transmission component of a seat height adjustment on a seat frame of a motor vehicle seat, which comprises the method steps of positioning a housing component relative to a part of the seat frame, fixing the housing component to the part of the seat frame and fastening the housing component to the part of the seat frame.

Armrest (10) comprising a base (19) and an arm (13) that can be moved by a mount (17) between at least one use position and a non-use position, wherein the arm (13) is movable by the mount (17) axially of a pivot axis (a) between a proximal and a distal position, and is pivotable about the pivot axis (a) between a primary and a secondary position, wherein the armrest (10) has an actuator (30) comprising a motor drive having a drive part (29) that is movable between a first and a second position in order to displace the arm (13) in a first direction (y.sub.1) between the non-use position and the use position, at least in part, wherein the actuator (30) has at least one spring (21) that can be tensioned upon movement of the drive part (29) or an additional drive part (29) of the actuator (30), wherein the arm (13) can be moved axially, in a second direction (y.sub.2) by the spring (21), which second direction is directed opposite the first direction (y.sub.1).

A vehicle seat rotates in response to activation of an electric motor. The electric motor is part of a non-back-drivable mechanism such that it acts to lock the seat in position. The seat mechanism is assembled from stamped components for efficient manufacturing. A bracket includes integrally formed gear teeth which mesh with gear teeth driven by the electric motor. The bracket is held between two stamped parts using four-point angular contact ball bearings. The races of the ball bearings are stamped into the respective stamped parts.

A vehicle seat comprising a seatback mounted pivoting by an articulation mechanism selectively lockable and unlockable, relative to a seatback footing selectively lockable and unlockable on a base, where the seat further comprises a seat cushion, first and second rear connecting rods connecting the seatback to the base, an actuating device being configured, by rotation of the first rear connecting rod, for driving the seatback into a folded down position when the articulation mechanism is unlocked and the seatback footing is locked on the base, and for driving the seat in a forward tilted position when the seatback footing is unlocked and the articulation mechanism is locked.