Synchronous seat recline mechanism

摘要

A seat for use in an aircraft having a floor is provided. The seat has a support assembly, a seat, a seat back pivotably coupled to the support assembly for movement between an upright position and a reclined position relative to the support assembly, and an occupant back support having an upper portion and lower portion pivotally coupled to the seat back at the upper portion. A pivot link pivotally couples to the rear portion of the seat at a first end and pivotally couples to the lower portion of the occupant back support at a second end. The pivot link causes the lower portion of the occupant back support to move downwardly and forward relative to the seat as the seat back moves from the upright position to the reclined position.

主权项

1. An aircraft seat for use in an aircraft having a floor comprising a support assembly coupleable to an aircraft floor, a seat bottom having a seat bottom frame pivotably coupled to the support assembly, a seat back beam supporting a seat back frame, the seat back beam pivotably coupled to the support assembly, wherein the seat back frame defines an occupant back support having:
an upper portion and lower portion pivotally coupled by a non-translational pivot connection to the seat back beam at the upper portion; and a pivot link pivotally coupled to a rear portion of the seat bottom frame at a first end and pivotally coupled to the lower portion of the occupant back support at a second end;such that the lower portion of the occupant back support moves downwardly and forward relative to the seat bottom frame and the seat bottom frame is drawn toward the seat back frame and tilts downward as the seat back frame moves from an upright position to a reclined position.