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.

Disclosed is a vehicle seat locking device including: a single latch having an engaging groove and first through third arm portions; a ratchet having a restraining portion engaging the first and second arm portions, restraining the latch in first and second latching positions respectively; and an engagement auxiliary lever having a first auxiliary arm portion abutting with a leg portion of a striker and a second auxiliary arm portion pivoting by this abutment. The latch pivots from an unlatching position to the first latching position by engaging its engaging groove with the leg portion entered a striker entering groove of a baseplate, and pivots to a second latching position by the pivot of the second auxiliary arm portion. The leg portion exits the engaging groove by the pivot of the latch to the second latching position to be clamped between the engagement auxiliary lever and the third arm portion.

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 device includes a housing in which a rotary element is rotatably mounted about a rotational axis, a locking device having a first locking element, connected in a rotationally fixed manner to the rotary element, and a second locking element arranged on the housing and which can be reversibly moved between a primary position in a locked situation, in which the locking elements have a form- and/or force-locking connection, and a secondary position without the connection. An adapter plate is rotates relative to the rotary element and the housing. An unlocking element cooperates with the adapter plate in an actuator region when the second locking element is transferred into the secondary position. The second locking element is shifted by an unlocking height in the unlocking region, and by a lifting height in the actuator region. The actuator region is arranged with the lifting height smaller than the unlocking height.

An electric seat and an angle adjustment device thereof are provided. The angle adjustment device includes an inner toothed plate and an outer toothed plate engaging with each other, and an eccentric cavity formed therebetween. An eccentric ring completely occupying a positive eccentric region of the eccentric cavity is provided in the eccentric cavity. The eccentric ring has a first accommodating region and a second accommodating region along a circumferential direction. The angle adjustment device further comprises a driving component for driving rotation of the eccentric ring. A damping component is provided in the first accommodating region and/or the second accommodating region, and the damping component is in a compressed state during operation of the driving component. The damping component eliminates a useless stroke in the above operation, thereby eliminating an adjustment lag experienced by a passenger during reverse adjustment of a seat and backrest.

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 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.

An electric seat and an angle adjustment device thereof are provided. The angle adjustment device includes an inner toothed plate and an outer toothed plate engaging with each other, and an eccentric cavity formed therebetween. An eccentric ring completely occupying a positive eccentric region of the eccentric cavity is provided in the eccentric cavity. The eccentric ring has a first accommodating region and a second accommodating region along a circumferential direction. The angle adjustment device further comprises a driving component for driving rotation of the eccentric ring. A damping component is provided in the first accommodating region and/or the second accommodating region, and the damping component is in a compressed state during operation of the driving component. The damping component eliminates a useless stroke in the above operation, thereby eliminating an adjustment lag experienced by a passenger during reverse adjustment of a seat and backrest.

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.