Patent ID: 7717502
Filing Date: 2010-05-18
Classification: A47C

Abstract:
1. In a folding chair, apparatus comprising: first and second upwardly and rearwardly extending front legs; first and second upwardly and forwardly extending rear legs; first and second support struts forming a support frame; a first slidable bracket encircling said first front leg above a middle point along the length thereof; a second slidable bracket encircling said second front leg above a middle point along the length thereof; a first pivot connection between a midpoint of said first support strut and said middle point of said first front leg; a second pivot connection between a midpoint of said second support strut and said middle point of said second front leg; a third pivot connection between a rear point of said first support strut and said middle point of said first rear leg; a fourth pivot connection between a rear point of said second support strut and said middle point of said second rear leg; a fifth pivot connection between said first slidable bracket and an upper part of said first rear leg; a sixth pivot connection between said second slidable bracket and an upper part of said second rear leg; a first spring knob between an upper part of said first front leg and said middle point of said first front leg; a second spring knob between an upper part of said second front leg and said middle part of said second front leg; a recess in each of said first and second said slidable brackets to capture each of said first and said second spring knobs; a first fixed bracket encircling said first front leg between said first spring knob and a top part of said first front leg; a second fixed bracket encircling said second front leg between said second spring knob and a top part of said second front leg; a first button release on said first slidable bracket to free said first spring knob from capture; a second button release on said second slidable bracket to free said second spring from capture; whereby upwards movement of said first slidable bracket, is restricted between said first fixed bracket and said middle point of said first front leg, whereby upward movement of said second slidable bracket is restricted between said second fixed bracket and said middle point of said second front leg, and whereby upwards rotation of said first and said second support struts in a direction folding the chair restricts upward movement of said first slidable bracket at said first fixed bracket and upward movement of said second slidable bracket at said second fixed bracket.