CONTROL ASSEMBLY FOR CHAIR

摘要

A control assembly for a chair including a base structure including a first pivot point and a second pivot point spaced from the first pivot point, and a seat support structure directly pivotably coupled to the base structure for rotation about the first pivot point, a back support structure pivotably coupled to the base structure for rotation about the second pivot point, wherein the back support structure is adapted to move between a first and second position, a control link having a first end operably coupled to the seat support structure, and a second end operably coupled to the back support structure, and a biasing assembly exerting a biasing torque about the second pivot point that biases the back support structure from the second position toward the first position, wherein the biasing torque is adjustable between first and second magnitudes when the back support structure is in the first position.

主权项

1. A control assembly for a chair, comprising:
a base structure including an upper portion having first and second pivot points. and a lower portion that includes a ground-abutting support structure; a seat support structure pivotably coupled to the base structure for rotation about the first pivot point, wherein the seat support structure is adapted to support a seated user thereon; a back support structure pivotably coupled to the base structure for rotation about the second pivot point, wherein the back support structure is adapted to move between an upright position and a reclined position; a control link operably interconnecting the seat support structure, and the back support structure; and at least one biasing assembly exerting a biasing torque about the second pivot point and exerting a biasing force on the back support structure that biases the back support structure from the reclined position towards the upright position, wherein the biasing torque is adjustable between first and second magnitudes, and wherein the second magnitude is greater than the first magnitude.