The present disclosure provides a power recliner including a seatback having an angle that is adjusted when an external gear coupled to an accommodation groove of an internal gear is eccentrically rotated as wedges are operated, in which a support groove having a level difference is formed in the accommodation groove of the internal gear and maintains a predetermined radius based on a burring part, in which the wedges are installed and inserted into the support groove so as to be moved along the support groove, and in which when a load is applied to a seatback, the wedges are dually in contact with a cam and an inner stepped surface of the support groove or dually in contact with the burring part of the internal gear and the inner stepped surface of the support groove to disperse the load, thereby improving maximum strength of the recliner.

A double fitting for a vehicle seat may have a first fitting part and a second fitting part that are drivingly connected to each other. The double fitting may also have adapter parts that can be connected to at least one of the fitting parts. One of the adapter parts can be connected to a structural part of the vehicle seat or to a vehicle body part, and the other adapter part is movably connected to a limited degree to the other adapter part which can be rigidly connected to the structural part or the vehicle body part. An elastic element is arranged between the adapter parts, a first fitting of the fittings is arranged axially between the adapter parts, and one of the adapter parts is arranged axially between the fitting. A vehicle seat having the double fitting is also disclosed.

A double fitting for a vehicle seat may have a first fitting part and a second fitting part that are drivingly connected to each other. The double fitting may also have adapter parts that can be connected to at least one of the fitting parts. One of the adapter parts can be connected to a structural part of the vehicle seat or to a vehicle body part, and the other adapter part is movably connected to a limited degree to the other adapter part which can be rigidly connected to the structural part or the vehicle body part. An elastic element is arranged between the adapter parts, a first fitting of the fittings is arranged axially between the adapter parts, and one of the adapter parts is arranged axially between the fitting. A vehicle seat having the double fitting is also disclosed.

An adjustment fitting for adjusting an inclination of a backrest of the vehicle seat may have a first fitting part, and a second fitting part which is pivotable about a central axis of rotation relative to the first fitting part and is connectable to the backrest of the vehicle seat. The first fitting part and the second fitting part may be components both of a gear unit, such as a planetary gear, of the adjustment fitting and of a locking device, such as a detent lock, of the adjustment fitting. A vehicle seat having the adjustment fitting is also disclosed.

An adjustment fitting for a vehicle seat for adjusting an inclination of a backrest of the vehicle seat may have a first fitting part connectable to a seat substructure of the vehicle seat. The fitting may also have a second fitting part pivotable about an axis relative to the first fitting part and connectable to the backrest of the vehicle seat. The first fitting part and the second fitting part may be constituent parts both of a gearing unit of the adjustment fitting and of a locking unit of the adjustment fitting.

A vehicle seat comprising a seatback mounted pivoting by an articulation mechanism selectively lockable and unlockable, relative to a seatback footing selectively lockable and unlockable on a base, where the seat further comprises a seat cushion, first and second rear connecting rods connecting the seatback to the base, an actuating device being configured, by rotation of the first rear connecting rod, for driving the seatback into a folded down position when the articulation mechanism is unlocked and the seatback footing is locked on the base, and for driving the seat in a forward tilted position when the seatback footing is unlocked and the articulation mechanism is locked.

A seatback adjustment assembly may include a recliner heart, an attachment plate, and a lever. The recliner heart is operable in an unlocked state permitting relative rotation between a seatback and a seat bottom and a locked state preventing relative rotation between the seatback and the seat bottom. The attachment plate is rotationally fixed to the recliner heart. The lever is rotatable between a first state in which the lever is engaged with the attachment plate and a second state in which the lever is disengaged from the attachment plate. When lever is in the first state and the recliner heart is in the unlocked state, rotation of the recliner heart causes corresponding rotation of the seatback relative to the seat bottom. However, the seatback is configured to rotate relative to the seat bottom without causing corresponding rotation of the recliner heart when the lever is in the second state.

Proposed is a seat reclining device having a mobile flange that includes: a gear unit having an internal gear; a collar provided at a center of the gear unit; and a flange part connecting the collar and the gear unit to each other, and that is configured such that a radial cross-section of the flange part circumferentially repeatedly changes.

Disclosed is a reclining device for a vehicle seat. The reclining device includes: a flange having internal teeth and a cylindrical-shaped flange protrusion; a gear plate having a through hole and external teeth to be partially engaged with the internal teeth of the flange in an eccentric state with the flange; an input device eccentrically positioned inside the through hole of the gear plate and configured of a rotating portion and a head portion; a wedge cam positioned between an the gear plate and the flange protrusion to maintain eccentricity of the gear plate; a support body supporting a load due to the eccentricity of the gear plate and transmitting a rotational force to the wedge cam; and an elastic portion positioned between the support body and the through hole to pressurize the wedge cam.

A vehicle seat recliner assembly includes a first recliner heart, a second recliner heart, hand lever and a cross member. The first recliner heart is mounted to a bracket. The second recliner heart is mounted to another bracket. The hand lever is mounted to the first recliner heart and rotatable relative to the brackets to move the first recliner heart between a locked state and an unlocked state. The cross member is connected to the first and second recliner hearts and transmitting torque from the hand lever to the second recliner heart to move the second recliner heart with the first recliner heart between the locked and unlocked states. The cross member has a central part and a plurality of projections extending radially around and from the central part such that the plurality of projections are spaced apart from each other.