A release mechanism for a reclining vehicle seat assembly includes an activation mechanism, for example a lever or handle, and a transmission. The transmission is coupled to the activation mechanism via a wire for releasing a seat back of the vehicle seat assembly. The transmission includes a plurality of meshed gears for transmitting a torque created by movement of the activation mechanism from a gear of the plurality of gears attached to the wire to a shaft associated with the seat back. Rotation of the shaft releases the seat back for rotation. A shield partially covers a side of the base and seat back, and covers the transmission and wire. The activation mechanism is uncovered allowing the passenger to activate the release mechanism and is positioned in a readily accessible zone relative a passenger hip point. The position avoids interference with the seat belt and occupies minimal space between the side shield and vehicle side.

A reclining device includes a guide bracket that is fixedly attached to one of a seat cushion and a seatback, an internal gear that is fixedly attached to the other and is shiftable for relative rotation to the guide bracket, at least a pair of lock gears that are respectively movable along a guide part provided on the guide bracket and includes external teeth meshable with internal teeth of the internal gear, and a cam that shifts the lock gears along the guide part between a lock position at which the relative rotation is regulated and an unlock position to release lock. The external teeth of the lock gear each have a shape including an indentation portion on a tooth surface closer to the guide part in a tooth thickness direction so as to define a gap between the tooth surface closer to the guide part and an internal tooth of the internal gear when the lock gears are in the lock position.

A seat assembly includes a seat base, a seat bottom connected to the seat base, a seat back pivotably connected to the seat base, and/or an adjustment assembly connected to the seat base. The adjustment assembly may include a first lever connected to the seat back, a second lever pivotably connected to the seat base and the seat back, and/or a motor coupled to the first lever. Actuation of the motor may rotate the first lever to adjust the seat back to a first seat position and to a second seat position relative to the seat base.

A rail for vehicle seat that has first and second sliding rail members driven by a motorized drive mechanism. The rail further includes a mechanical latch actuated when crash conditions are detected.

A seat drive device, wherein one of first and second operation restricting portions corresponding to one of first and second transmission members is movable within one of first and second notches corresponding to another of the first and second transmission members when the one of the first and second transmission members is rotated from an initial state where both of the first and second transmission members are not rotated, and the first and second operation restricting portions are arranged to interfere with each other when both of the first and second transmission members are simultaneously rotated.

A module for a vehicle seat comprises a drive cable, an actuator, and a transmission assembly. The actuator is coupled to the transmission assembly to drive the transmission assembly. The drive cable is coupled to the transmission assembly and moves as a result of the actuator being activated.

A drive system (2) tilt adjusts a back rest (10) of a vehicle seat (1). The back rest (10) is held on a seat base (11) by a fitting (12). An output pinion (24), drivable by a drive motor (20), is provided on the seat back side and interacts with a tooth segment (18) arranged rotationally fixed on the base (11). A pivot movement of the back rest (10) can be carried out by the drive motor (20) while the fitting (12) is unlocked. The output pinion (24) can be uncoupled from the drive motor (20) by a coupling (22). A compensation spring (14) acting between the back rest (10) and the base (11) pre-tensions the back rest (10) in the direction of the non-use position. A vehicle seat (1) with the drive system and a method for operating a drive system (2) are also provided.

A vehicle seat includes a seat cushion frame provided at a seat cushion; a seatback frame structuring a seatback, the seatback frame being rotatably coupled to a front-rear direction rear end portion of the seat cushion frame via a rotation axle; a drive unit disposed at a front-rear direction front side of the seat cushion frame; and a first driving force transmission unit that couples the drive unit with the rotation axle and transmits driving force of the drive unit to the rotation axle.

A vehicle seat includes a seat bottom and a seat back coupled to the seat bottom and configured to move relative to the seat bottom. A reclining assembly is coupled to the seat bottom and the seat back to move the seat back relative to the seat bottom.

A seatback assembly pivotally supported upon a seat bottom and including each of forward spring assisted dump, rewind and reset protocols. A stationary sector is affixed to the seat bottom and has an abutment edge. A seatback sector is pivotally secured to the stationary sector and is influenced relative thereto in a forward rotating dump direction. A cam is rotatably supported upon the pivoting seatback sector, the cam having an outer engaging edge in abutting contact with the abutment edge for maintaining the seatback sector in an upright design position. A rotating sector plate is arranged in stacked fashion with the stationary and pivoting seatback sectors, the sector plate exhibiting a plurality of outer circumferentially arrayed teeth. A pinion gear extends from a pivot axis established between the cam and seatback sector, the gear engaging the outer arrayed teeth of the sector plate. Upon the cam being rotated out of engagement with the stationary sector, the seatback rotates to a forward dump position, with subsequent rotation of the pinion gear rotatably displacing the sector plate and the seatback in slaved fashion to retract the seatback to the upright design position, with a concluding and counter-rotation of the pinion gear counter-rotating and resetting the sector plate independently of the seatback sector to a final reset position.