Patent ID: 6481789
Filing Date: 2002-11-19
Classification: A47C

Abstract:
A chair comprisinga frame having a crosspiece and having a front leg, a rear leg and a backrest support attached to each end of the crosspiece; a seat mounted on the crosspiece, a backrest; and a pair of backrest-mounting mechanisms mounting the backrest on the backrest supports for pivotal movement about a horizontal pivot axis between an upright position and a rearwardly inclined position, each backrest-mounting mechanism attaching one side of the backrest to the backrest support and including a pivot pin attaching the backrest to the backrest support for pivotal movement, the pivot pin passing through a hole in the backrest support and extending into a threaded hole in the backrest, the pivot pin having a threaded portion threaded into the backrest and a head portion engaging the backrest support so as to affix the backrest to the backrest support, a spring engaged between the backrest and the backrest support and biasing the backrest to an upright position, and a stop pin affixed to one of the backrest and the backrest support and received in a stop groove in the other of the backrest and the backrest support, the stop pin being engageable with end stop surfaces of the stop groove so as to limit the range of pivotal movement of the backrest and establish the upright and inclined positions of the backrest.