Ergonomic Side Chair

Abstract

A reclinable chair is disclosed having right and left side connectors for pivotally connecting a backrest to a base assembly. The connectors bias the backrest into the upright position when unoccupied. In certain embodiments, the connectors can comprise elastic members, ball joints, or a plurality of elastic springs.

1 . A chair comprising:
 a) a base;   b) a seat supported by the base;   c) a right side lumbar mount attached to the base, the right side lumbar mount extending above the seat;   d) a left side lumbar mount attached to the base, the left side lumbar mount extending above the seat;   e) a backrest;   f) a right side connector attaching the backrest to the right side lumbar mount; and   g) a left side connector attaching the backrest to the left side lumbar mount.   
     
     
         2 . The chair of  claim 1 , wherein the right side connector and the left side connector are each elastic members, the elastic members biasing the backrest into an upright position. 
     
     
         3 . The chair of  claim 1 , wherein the right side connector and the left side connector are each ball joints, the ball joints each comprising a ball bearing disposed within a ball joint housing. 
     
     
         4 . The chair of  claim 3 , wherein the right and left side ball joints each comprise a spring biasing the backrest into an upright position. 
     
     
         5 . The chair of  claim 1 , wherein the right side connector and the left side connector each comprise a plurality of elastic springs. 
     
     
         6 . The chair of  claim 5 , wherein the elastic springs are attached to the backrest at one attachment point in the center of the backrest.