To reduce energy loss to increase power transmission efficiency, as well as to suppress unusual sound resulting from whirling vibration. A driving force transmission mechanism includes a drive unit that generates a rotation force and consists of a motor, as well as an independent rotating mechanism that is disposed between the drive unit and one of a pair of left and right gear mechanisms so as to be connected to the output shaft of the drive unit and has greater kinetic energy than the rotating parts of the gear mechanisms. Flexible shafts that rotate by smaller kinetic energy than any of the kinetic energy of the drive unit, the kinetic energy of the rotating mechanism, and the friction forces and damping forces of the rotating parts of the gear mechanisms connect between the drive unit and rotating mechanism, between the rotating mechanism and one gear mechanism, and between the drive unit and the other gear mechanism.

A deformation element for a motor vehicle seat, which element is intended to be arranged on a subassembly of a motor vehicle seat, having a base member, a deformation portion which is formed on the base member and on which the deformation element can be deformed and/or destroyed under the action of an external force, and a force introduction region by means of which a structural element of a motor vehicle seat can be brought into operational connection with the deformation portion so that a force acting on that structural element can be introduced via the force introduction region into the deformation portion. The deformation portion is formed by means of partial deformation of the material of the deformation element and at the transition of the deformation portion to the base member of the deformation element there is a weakening region which defines at least one tear line.

The present invention relates to a headrest for a vehicle, the headrest comprising: a fixed elevating unit installed at the top end of a seat backrest and capable of being raised; a fixing shaft fixed to the fixed elevating unit and extending in a horizontal direction; a moving frame installed on the fixing shaft and including a guide rail and an automatic power transfer unit, so as to move linearly forward and backward and rotate upward and downward; a coupling main body coupled in a state enclosing the moving frame, and moving together with the moving frame; and a manually operated unit enabling the moving frame to be manually adjusted on the coupling main body. The manually operated unit is characterized by including an operating switch for electrical control so as to be capable of controlling a current flowing to the automatic power transfer unit.

A power adjuster (30) for adjusting the position of an upper track (16) relative to a lower track (18) of a seat track assembly (10). The power adjuster includes a lead screw (22) fixedly secured to the upper track, a drive assembly (32) operatively coupled to the upper track and selectively coupled to the lead screw, a driven assembly (34) operatively coupled to the lead screw and selectively coupled to the drive assembly, and a release mechanism (36) coupled to the upper track. The release mechanism is operable between a locked condition coupling the driven assembly to the drive assembly and the upper track wherein the driven assembly and the drive assembly move longitudinally along the lead screw with the upper track relative to the lower track and an unlocked condition wherein the driven assembly is decoupled from the upper track and retained along the lead screw during movement of the upper track relative to the lower track.

A longitudinal adjuster for a vehicle seat may have at least one pair of rails which is formed from a first rail and a second rail. A spindle nut may be connected to the second rail and a spindle operatively connected to the spindle nut are located in the inner channel. A spindle gear, which can be driven a motor and interacts with the spindle, may be located at one end of the first rail. The spindle nut may be fixed to the second rail so that the spindle nut has a degree of freedom of at least one. The spindle nut may be fixedly connected to the second rail by a fixing device. A projection may be provided between a base body of the spindle nut and the second rail. The invention also relates to a vehicle seat with the longitudinal adjuster.

The present disclosure relates to a motor for a seat sliding device of a vehicle, and includes a coil module in which a plurality of first coils and a plurality of second coils are seamlessly disposed in the circumferential direction to have a cylindrical shape. Therefore, the conventional stator core having a slot and a tooth for installing the coil is not used, thereby implementing miniaturization and light-weight of a motor. and the slot and the tooth do not exist, thereby reducing a cogging torque and reducing the vibration and noise of the motor.

The invention relates to a vehicle seat with a lower part for arrangement on a body part of a commercial vehicle and an upper part for storing a seat part, wherein the vehicle seat has a rotational adjustment device, by means of which at least parts of the upper part are rotatable relative to the lower part about an axis in the height direction of the vehicle seat, wherein the rotational adjustment device comprises an electric motor for rotating a rotary plate unit which is rigidly connected to the upper part and is mounted so as to rotate relative to the lower part about the axis, wherein a driveshaft of the electric motor which mechanically interacts with the rotary plate unit is arranged parallel to the width direction of the vehicle seat, wherein, viewed in each case in the height direction of the vehicle seat, an extension of the electric motor and an extension of the rotary plate unit are arranged to be at least partially overlapping.

A swivel device for vehicle seats may rotate a seat mounted inside a vehicle at 180° or more and firmly fix the seat at a normal position before and after rotation. The swivel device includes: a base plate provided with a plurality of first locking members; a swivel plate disposed on the base plate to be rotated by a second motor; a rotary force transmission mechanism mounted on an output shaft of the second motor and the swivel plate to transmit a rotary force of the second motor to the swivel plate; an elevating plate provided with a plurality of second locking members separably coupled to the plurality of first locking members and formed on a lower surface of the elevating plate; and a first motor mounted on an upper surface of the elevating plate to transmit a rotary force to the lead screw.

A seat lifter includes: an inner link for changing a height position of an inner lower arm with respect to a floor of a vehicle; an outer link for changing a height position of an outer lower area with respect to the floor; a coupling rod that couples the inner link to the outer link; a planetary gear mechanism capable of causing the coupling rod to rotate relative to the inner lower arm and the outer lower arm; a drive unit capable of driving the planetary gear mechanism; and a power transmission rod that transmits power of the drive unit to the planetary gear mechanism. The planetary gear mechanism is disposed between the inner lower arm and the outer lower arm. The drive unit is disposed outside the inner lower arm in the width direction or outside the outer lower arm in the width direction.

A support member may be configured for selective connection with and removal from track assemblies. A support member may include a body and a rolling member rotatably connected to the body to facilitate movement of the support member along a track. The rolling member may include a grooved configuration to limit movement of the support member relative to said track in a Y-direction. The rolling member may include a groove configured to engage a protrusion or ridge of said track. The rolling member may include a first portion and a second portion separated in an axial direction by the groove.