Patent ID: 6352308
Filing Date: 2002-03-05
Classification: A47C

Abstract:
A support frame device for connecting a seat portion of a chair to an upper end of an upright post, comprising:an anchoring member including: a base mounting plate with first right and left sides opposite to each other in a transverse direction, and adapted to be mounted beneath the seat portion, and right and left anchoring plates integrally formed with, and respectively extending from said first right and left sides of said base mounting plate in an axial direction and away from the seat portion; an anchored member including a spacer plate having second right and left sides opposite to each other in the transverse direction, and upper and lower walls opposite to each other in the axial direction, said upper and lower walls including upper and lower peripheral edge portions, respectively, which cooperate to confine a mounting bore that defines an axis parallel to the axial direction, and right and left anchored plates integrally formed with, and respectively extending from said second right and left sides of said spacer plate in the axial direction and away from said lower wall; a securing member disposed to secure said right and left anchored plates respectively to said right and left anchoring plates such that said upper wall of said spacer plate cooperates with said base mounting plate to define an accommodation space in the axial direction; an annular stiffening member having an annular abutment end disposed to abut against said lower peripheral edge portion, and an annular seat end opposite to said annular abutment end and distal to said lower peripheral edge portion, said annular seat end cooperating with said annular abutment end to define an axial passage adapted to allow the upper end of the upright post to pass through; and a connecting member including a hollow stem having lower and upper annular ends opposite to each other in the axial direction, and an inner annular wall extending from said lower annular end to said upper annular end to confine an axial through hole adapted to permit the upper end of the post to move retainingly therein relative to said inner annular wall in the axial direction, and a flange portion integrally formed with and extending from said upper annular end in radial directions, said flange portion abutting against said upper peripheral edge portion when said hollow stem is inserted into said mounting bore with said lower annular end thereof extended through said axial passage and downwardly of said annular seat end, and subsequently malleated to form an outwardly and radially extending flared portion that abuts against said annular seat end.