It is provided an adjusting device for the longitudinal adjustment of a vehicle seat, comprising at least one rail for defining a longitudinal seat axis along which a seat base of the vehicle seat is adjustable, and for supporting at least one adjusting unit of the adjusting device, and at least two shiftably guided adjusting units arranged one behind the other along the longitudinal seat axis, to which the seat base is to be fixed in order to be adjustable along the longitudinal seat axis. The at least two adjusting units are adjustable relative to each other along the longitudinal seat axis, and each adjusting unit is assigned a separate drive for the power-operated adjustment along the longitudinal seat axis.

The present disclosure relates to a height adjustment apparatus of a vehicle seat, whereby during a height adjustment of a seat cushion, a desired tilting angle of the seat cushion is obtained and heights of a front part and a rear part of the seat cushion are individually adjusted. Due to the height adjustment apparatus, the comfort of a seated occupant is improved by adjusting the angles of the seat cushion in response to various postures of the occupant. In addition, a link connection is structurally secured and thus its durability is also improved.

A device for swiveling and tilting a vehicle seat is provided. The device performs a swiveling operation to enable the vehicle seat to be rotated in a desired direction using a motor driving force and a gear/screw operating mechanism associated with the motor driving force. The device also performs a tilting operation to enable the vehicle seat to be tilted backwards by a desired angle using the motor driving force and a lead screw/link operating mechanism associated with the motor driving force.

A seat frame is disclosed for a height-adjustable and tiltable seat pan of a motor vehicle seat. The seat frame has two side rails, a first cross bar, a second cross bar, and a drive unit. The first cross bar is supported in the two side rails and the second cross bar serves to support the seat pan. The second cross bar is mounted so as to be rotatable about fixed first axis in the two side rails. The second cross bar is rotated by the drive unit. The drive unit has an actuating motor and an actuator that is displaceable via the actuating motor and connected to the second cross bar outside the first axis. The drive unit is mounted on the first cross bar and rotatable about a second axis of the first cross bar which is fixed in the two side rails.

A device for adjusting a seat of a vehicle is capable of implementing functions including adjusting a position of the seat back and forth, a height of the seat up and down, and tilting or the like by using a plurality of actuators having pistons. The functions of adjusting the position of the seat back and forth, the height of the seat up and down, and tilting or the like are carried out by providing connections between a floor panel and a seat cushion frame through a plurality of actuators and a single link, and selectively moving a piston of each actuator back and forth.

Various seating arrangements for a vehicle are described. Generally, the vehicle includes an electromagnetic array featured on a floor of the vehicle. The chair includes base having a plurality of magnets featured thereon. The vehicle generates signals for the electromagnetic array to generate a wave and impart a force on the chair in a determined direction via the plurality of magnets.

The present disclosure provides a seat cushion extension device for a fold-and-dive seat. The seat cushion extension device may include a pair of seat cushion side frames arranged at a predetermined interval, a seatback frame rotatably connected to the pair of seat cushion side frames and having a guide pin formed on an outer surface thereof, a seat cushion frame, a pair of links rotatably connected between the pair of seat cushion side frames and a front end of the seat cushion frame, and a pair of extension frames. Each of the pair of extension frames may have a front end connected to the seat cushion frame, and a rear end formed with a guide hole, into which a guide pin may be inserted. The seat cushion extension device may facilitate a forward extension of a seat cushion regardless of a position of a seatback of the fold-and-dive seat.

An underframe for a height adjuster of a seat, in particular a vehicle seat, may have a base frame which is connectable to a vehicle floor, a seat frame which is adjustable relative to the base frame and has at least one frame part, and a spindle drive unit for adjusting the seat frame relative to the base frame. The spindle drive unit has a first bearing point, which is connected pivotably to the frame part, and a second bearing point, which is connected pivotably to the base frame. A height adjuster for the vehicle seat is also provided.

A linear actuator for adjusting a seat component of a motor vehicle seat includes a lead screw having a rod head. A fastening means is connected to the rod head and connectable to a first seat component of the motor vehicle seat. The first seat component has a bearing, with the fastening means being insertable into the bearing in a first orientation and lockable in the bearing in a second orientation.

A vehicle seat has a seat base, a carriage, and an adjusting device. The adjusting device is formed in such a way that the vehicle seat is adjustable vertically or the inclination is adjustable by the adjusting device. The adjusting device has a rotation device arranged on the carriage such that the seat base is rotatable relative to the carriage about a vertical axis by the rotation device. The adjusting device includes a strut, a first end of which is pivotably attached to the carriage or to a rotation base fixed to the carriage and a second end of which is pivotably attached to the seat base. The adjusting device has first and second linear actuators. The seat base is supported on the first linear actuator, the second linear actuator, and/or the strut. The first and second linear actuators cooperate to adjust the vehicle seat.