Control Assembly for Chair

摘要

A control assembly for a chair includes a base structure having a first pivot point and a second pivot point spaced from the first pivot point, a seat support structure having a forward portion pivotably coupled to the base structure for rotation about the first pivot point, a back support structure having a forward portion pivotably coupled to the base structure for rotation about the second pivot point, wherein the back support structure is adapted to move between upright and reclined positions, and wherein the seat support structure reclines rearwardly as the back support structure moves from the upright to reclined positions, and a control link having a first end pivotably coupled to a rearward portion of the seat support structure for rotation about a third pivot point, and a second end pivotably coupled to a rearward portion of the back support structure for rotation about a fourth pivot point.

主权项

1. A control assembly for a chair, comprising:
a base structure defining a first pivot point and a second pivot point spaced from the first pivot point, wherein the base structure is adapted to attach to a ground-abutting base support structure; a seat support structure having a forward portion pivotably coupled to the base structure for rotation about the first pivot point and a rearward portion located rearward of the forward portion, and wherein the seat support structure is adapted to support a seated user; a back support structure having a forward portion pivotably coupled to the base structure for rotation about the second pivot point and a rearward portion located rearwardly of the forward portion, wherein the back support structure is adapted to move between an upright position and a reclined position, and wherein the seat support structure reclines rearwardly as the back support structure moves from the upright position to the reclined position; and a control link having a first end pivotably coupled to the rearward portion of the seat support structure for rotation about a third pivot point, and a second end pivotably coupled to the rearward portion of the back support structure for rotation about a fourth pivot point.