Reclining and ottoman-extending chair mechanism

摘要

A seating-unit mechanism includes various components that control a position of the seat and backrest and that control an extension and retraction of an ottoman and footrest. For example, the mechanism includes a linear actuator that controls a seat pitch (e.g., height and level of recline). In addition, the mechanism includes an ottoman-linkage drive mechanism, which might include a drive link or another linear actuator.

主权项

1. A mechanism for adjusting seating positions of a seating unit, the mechanism comprising:
a pair of side rails; a pair of mirror-image linkage mechanisms, each of which is attached to respective side rail and each of which comprises:
a front pivot link and a rear pivot link pivotably coupled to the respective side rail,a seat plate pivotably coupled to the front pivot link and the rear pivot link,an ottoman front pivot link and an ottoman rear pivot link pivotably coupled to the seat plate,an ottoman upper front link pivotably attached to the ottoman front pivot link and to the ottoman rear pivot link,an ottoman lower front link pivotably coupled to the ottoman front pivot link,a main-ottoman mounting bracket pivotably coupled to both the ottoman upper front link and the ottoman lower front link, the main-ottoman mounting bracket supporting a main-ottoman substructure, which extends between both main-ottoman mounting brackets of the mirror-image linkage mechanism; a seat-plate drive tube extending between and coupled to both seat plates of the mirror-image linkage mechanisms; a linear actuator coupled to the seat-plate drive tube that controls a position of the seat plates; and one or more ottoman-linkage drive mechanisms operatively coupled to the ottoman front pivot links of the mirror-image linkage mechanism, the one or more ottoman-linkage drive mechanisms comprising an ottoman drive link pivotably coupled to the rear pivot link and to the ottoman front pivot link for controlling extension and retraction of an ottoman.