Patent ID: 9277821
Filing Date: 2016-03-08
CPC Classification: A47C

Claim Text:
1. A tilt mechanism for a chair, said tilt mechanism being configured for adjustment of a tension applied by a chair back, said tilt mechanism comprising: a base, a back bracket tiltably supported on said base and configured to be attached to said chair back, a rocker having a pivot axis provided at a fixed location relative to said rocker, said rocker being coupled to said back bracket so as to be moveable relative to said back bracket and being configured such that said rocker pivots about said pivot axis when said back bracket tilts relative to said base, an energy storage mechanism coupled to said rocker to exert a force onto a portion of said rocker which portion is spaced from said pivot axis by a distance, and an actuating mechanism coupled to at least one of said rocker or said energy storage mechanism and configured to alter said distance between said pivot axis and said portion of said rocker at which said force is exerted onto said rocker by a translational displacement of said pivot axis of said rocker or of said energy storage mechanism relative to said base.