Patent ID: 6059239
Filing Date: 2000-05-09
Classification: A47C

Abstract:
A posture chair comprising:a chair base,a vertical spindle member having upper and lower ends and having its lower end mounted in said chair base,a seat support member mounted at the upper end of said vertical spindle member,a back support member mounted on said seat support member, anda back mounted on said back support member,said chair base comprisinga hub having the lower end of said vertical spindle member mounted therein,a plurality of legs each attached at one end to said hub, anda support plate adjacent said hub having each of said legs affixed thereto,wherein said support plate comprises a disc,wherein said disc has a central aperture permitting a portion of said hub to extend therethrough,wherein said legs are welded to said disc,wherein said disc is positioned below said legs, and said legs are welded to the upper surface of said disc,wherein said disc is also welded to said hub,wherein the legs have upper and lower surfaces and wherein the lower surfaces of said legs are angled downwardly and radially outwardly, and said disc has upper and lower surfaces and is dished accordingly to provide contact engagement between the lower surfaces of said legs and the upper surface of said disc,wherein the lower surfaces of said legs are affixed to the upper surface of said disc by means of a plurality of weld beads placed one at each corner of each leg where the corner engages the upper surface of said disc, said weld beads extending along substantially the entire radius of said disc and to within about 1/4 inch from the outer edge of said disc,wherein said disc has a diameter of about five inches,wherein said disc is formed of steel, andwherein said chair base is provided with six or eight legs.