Vehicle seat articulation (10) allowing angular adjustment of a backrest relative to a seat base, the articulation comprising two flanges (7,8), the first flange comprising a base toothing on a border directed inward, with N teeth spaced at an angular pitc...

A seat reclining apparatus for a vehicle : a locking mechanism (5L, 5R) that is interposed between a seat cushion and a seatback and selectively switches inclining of the seatback between a permitted state and a regulated state with respect to the seat cus...

A seat reclining apparatus for a vehicle, includes a first arm (11), a second arm (12) rotatably supported by the first arm, a pawl (31A) including external teeth (44) engageable with internal teeth (23), a cam portion (45) and plural pawl-side cam surface...

A round recliner for vehicle seat is disclosed. The round recliner comprises a holder; a sector gear coupled to the holder to be rotatable with respect to the holder; N lock gears respectively having outer teeth and moving between a locking position where ...