Disclosed herein is a rear link assembly for a vehicle seat. The rear link assembly includes; a pipe provided with first and second stop protrusion portions in the vicinity of each end thereof; a link bracket fixed between the first and second stop protrusion portions; a serration formed by repeatedly forming pluralities of protrusions and depressions on the inner circumferential surface of the coupling hole of the link bracket into which the pipe is inserted; stepped portions formed on the protrusions; and a first introduced volume portion formed in such a manner that one side of the second stop protrusion portion is deformed and introduced into the stepped portions.

Disclosed is a low-posture zero-gravity seat frame capable of being adjusted in multiple directions. A first left front connecting rod has a lower end hinged to a left slide rail front bracket and an upper end hinged to one end of a second left front connecting rod, and the other end of the second left front connecting rod is hinged to a front horizontal tube. A second toothed plate driving device is able to adjust the height of a seat framework through the movement of a rear horizontal tube. A seatbelt retractor is disposed below the seat framework. The seat frame can realize zero-gravity adjustment, occupies a small space, and can fulfill low-posture seat arrangement.

Disclosed is a low-posture zero-gravity seat frame capable of being adjusted in multiple directions. A first left front connecting rod has a lower end hinged to a left slide rail front bracket and an upper end hinged to one end of a second left front connecting rod, and the other end of the second left front connecting rod is hinged to a front horizontal tube. A second toothed plate driving device is able to adjust the height of a seat framework through the movement of a rear horizontal tube. A seatbelt retractor is disposed below the seat framework. The seat frame can realize zero-gravity adjustment, occupies a small space, and can fulfill low-posture seat arrangement.

A seat recliner for a vehicle is provided and includes: a first plate; a second plate coupled with the first plate to define an inner space; a locking gear provided in the inner space, and provided with external teeth engaged with the first plate or the second plate; a locking cam configured to move the locking gear; an input member configured such that a first end thereof passes through the first plate and is coupled with a center of a locking cam to transmit torque thereto, and a second end thereof is exposed outside the first plate; and an elastic member wound around an outer circumferential surface of the second end of the input member, and configured such that a first end thereof is stopped by the input member, and a second end is stopped by an outer side of the first plate, thereby providing a restoring force.

A vehicle seat adjuster for adjusting the inclination of a backrest with respect to the seat.

A vehicle seat adjuster for adjusting the inclination of a backrest with respect to the seat.

A control mechanism for a lock pawl comprises an electric motor mounted in a housing that is connected with the seat backrest and has an output shaft with a worm gear engaging with the spur gearing of a transmission gear rotary-mounted on a transmission pivot and having on its frontal surface an eccentric selector pivot for controlling the pawl of the lock, swing-mounted on a pawl pivot between a blocking position, in which the pawl blocks a rotary ratchet of the lock from releasing a catch eye connected with the car bodywork, and an unlocking position, in which the pawl releases the rotary ratchet to release the catch eye, the pawl having a radial selector arm, which in the blocking position of the pawl interferes with the circular trajectory of the selector pivot to enable the selector pivot to engage with the selector arm, whereas the pawl has a radial control arm.

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 seat reclining device includes a ratchet, a guide, and pawls for locking relative rotation between the ratchet and the guide. The ratchet has a second convex portion protruding so as to abut against a ride-up protrusion of a main pawl. The second convex portion has, only in a partial region thereof in the rotation direction, a relief concave portion configured to avoid abutment in the rotation direction between the ride-up protrusion and the second convex portion.

By a contact of an engagement portion of a second memory member to a circumferential wall portion of a first memory member, the engagement portion is restricted from moving in a radial direction in accordance with a lock operation of lock members. By an engagement of the circumferential wall portion of the first memory member with the engagement portion of the second memory member that is in contact with the circumferential wall portion, the first memory member integrally rotates with a first rotary member on a same axis of the first and second rotary members. In a state where a rotation limiting mechanism restricts the first memory member and the first rotary member from integrally rotating with each other, the first memory member allows the engagement portion to slide along a longitudinal direction of the circumferential wall portion.