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 a respective side rail and each of which comprises:
a seat plate,a front pivot link pivotably coupled to the respective side rail at a first pivot and pivotably coupled to the seat plate at a second pivot,a rear pivot link pivotably coupled to the respective side rail at a third pivot and pivotably coupled to the seat plate at a fourth pivot,an ottoman front pivot link pivotably coupled to the seat plate at a fifth pivot, andan ottoman drive link pivotably coupled to the rear pivot link at a sixth pivot and pivotably coupled to the ottoman front pivot link at a seventh pivot, wherein the fourth pivot and the sixth pivot are spaced part by a first distance, wherein the second pivot and the seventh pivot are spaced apart by a second distance, and wherein a ratio of the first distance to the second distance is about 1.57 to about 3.4; a rear drive tube extending between and coupled to both rear pivot links of the mirror-image linkage mechanisms; and
a linear actuator coupled to the rear drive tube that controls a position of the seat plates.