VERTICAL HEIGHT ADJUSTMENT MECHANISM FOR CHAIRS

摘要

A chair (20) includes a base (21) having a vertically extendable gas spring (22) with an upwardly disposed release button (23) movable horizontally/laterally between a vertically oriented locked position where the gas spring (22) is lock and non-extendable, and a laterally shifted actuated position where the gas spring (22) is released and extendable. A seat (20) is mounted on the gas spring (22) and includes an actuator (25) constructed to selectively move the release button (23) between the locked position and the actuated position with a sideways movement. The actuator (24) includes a link (26) slidably mounted to a control housing (27) under the seat for horizontal movement, and a lever (28) that is pivoted to a side of the control housing (27) for operating the link. The link (26) includes an aperture (36) with angled side surfaces configured to facilitate downward assembly of the link (26) onto the release button (23), but so that the side surfaces will actuate the release button when the link is moved laterally by the lever.