Provided is a device for adjusting a seat of a vehicle. The device integrates a fold-and-dive function in addition to a walk-in function of a seat and also enables a forward or backward sliding movement function of the seat to be linked with other functions, so that the walk-in operation that tilts second-row seats or third-row seats to a forward direction for securing an aisle for a passenger to get in or out of the vehicle may be easily performed. Further, the walk-in operation state may be robustly maintained since the seat is robustly fixed after the walk-in operation is performed, and the device contributing to a standardization in which various functions in addition to the walk-in function are integrated with each other and contributing to functional expandability may be provided.

A seat fore-and-aft adjuster for a vehicle seat may have a lower rail and an upper rail. The adjuster may also have a drive unit, a gearbox unit having a gearbox housing, and a cover element. The upper rail may have at least one through-hole. The cover element may have at least one covering region, which is formed from two cover legs opposite to and parallel with one another. The cover element may have at least one covering sub-region arranged laterally to the covering region. The covering sub-region is defined by a covering wing protruding vertically in the longitudinal direction from one of the cover legs. The covering region is frictionally and/or interlockingly connected to the housing section, and the covering sub-region covers at least one connecting region of the bracket above that of the upper rail by the covering wing.

An apparatus for changing positions of a seat for vehicles includes mechanisms for adjusting the height of the seat for vehicles, adjusting reclining of the seat for vehicles, changing the seat for vehicles into a knee rest posture and changing the seat for vehicles into a relaxed comfort are integrated into one structure. Accordingly, a user selectively implements adjustment of the height of the seat for vehicles, adjustment of reclining of the seat for vehicles, change into the knee rest posture, and change into the relaxed comfort posture, etc., through operation of the switch.

A seat slider device may include: a lower rail attachable to a body of a vehicle; an upper rail attachable to a seat and slidably engaging with the lower rail; at least one roller provided in the upper rail and pressed against the lower rail or the body of the vehicle; and an actuator configured to rotate the at least one roller.

The present disclosure provides a device for reclining a seatback for a vehicle, which may allow a separate actuator to be driven by a switching signal of a lever switch when a user operates the lever switch with only a small force such that a cable connected to a latch for locking or unlocking a recliner may be pulled in an unlock direction of the recliner, thereby implementing the reclining operation for adjusting an angle of the seatback in a semiautomatic manner.

Provided is an electric seat control apparatus for a vehicle including: a first rail and a second rail mounted at a constant interval on the floor surface of a vehicle body in the forward and rearward directions of a seat; a first movement unit provided with a first motor and mounted between the first rail and the lower surface of the seat to move linearly along the first rail; a second movement unit provided with a second motor and mounted between the second rail and the lower surface of the seat to move linearly along the second rail; and a control unit that simultaneously receives the RPM and a rotational position signal of the first motor and the RPM and a rotational position signal of the second motor to synchronize the RPMs and rotational positions of the first motor and the second motor to match each other.

Suspension device for a vehicle seat, comprising an upper suspension portion and a lower suspension portion, which are interconnected by a first swivel connector and a second swivel connector, wherein the suspension device comprises a first adjustable toothed wheel element arranged on the upper suspension portion, a second toothed wheel element connected to the first swivel connector for adjusting a position of a first spring unit, by means of which a spring force and a spring rate of the suspension device can be changed, and a third toothed wheel element which is at least operatively connected to the first and the second toothed wheel element and is connected to the first swivel connector.

Suspension device for a vehicle seat, comprising an upper suspension portion and a lower suspension portion, which are interconnected by a first swivel connector and a second swivel connector, and the first and the second swivel connector are pivoted in each case about a swivel pin in the case of an oscillating movement of the upper suspension portion relative to the lower suspension portion, wherein a first toothed wheel element which is rotatable about a first axis of rotation is arranged on the first swivel connector for adjusting a position of a first spring unit, by means of which a spring force and a spring rate of the suspension device can be changed, the first toothed wheel element being in operative contact with a second toothed wheel element which is rotatable about a second axis of rotation.

Suspension device for a vehicle seat, comprising an upper suspension portion and a lower suspension portion, said suspension portions being connected to one another by a first swivel connector and a second swivel connector, said first swivel connector being arranged on the lower suspension portion in such a way that it can swivel about a first swivel pin, and said second swivel connector being arranged on the lower suspension portion in such a way that it can swivel about a second swivel pin, a first tension spring and a second tension spring being respectively connected to the first swivel connector by means of a first end region and to the upper suspension portion or the lower suspension portion by means of a second end region, wherein the first end region of the first tension spring is attached to the first swivel connector at a first distance therefrom, and the first end region of the second tension spring is attached to the first swivel connector at a second distance therefrom, the length of the first distance being variable.

A seat, such as a vehicle seat, includes an assembly for use in adjusting a seat support relative to a seat frame to provide a varying level of support to a seat occupant. The assembly includes a chassis mounted on the seat support, a screw drive supported on the chassis, an actuator coupled to the screw drive, a drive block engaging the screw drive, and first and second cables extending from the assembly for adjustable attachment to the seat frame.