Structure of an improved chair

Abstract

A structure of an improved chair, comprising: one chair, one set of edge-bars of the chair-back, one set of edge-bars of the chair-seat and two metal-plates; the chair composed of tube or prism as the principal holder has a configuration having a chair-seat section and a chair-back section, wherein the present invention use edge-bars each having an extended part and a principal part, the edge-bar is die-cast, there is a U-shape fixing slit between the extended part and the principal part, and the extended has several holes, and after the fit-rim of the metal-plate is fitted into the U-shape fixing slit, the edge-bars and the metal-plate can be welded or riveted at the several holes of the extended part into a unified connector, which is unable to be dismantled, and thus provides a structure of a chair which two metal-plates can be fast fixed on the chair-seat and the chair-back.

1 . A structure of an improved chair, comprising: 
 a chair composed of tube or prism as the principal holder and having front-legs, rear-legs, arm-rests and an extended-bar, wherein a fix spot installed on each front-leg is used to fix a set of an edge-bar of a chair-seat or said extended-bar;    a set of edge-bars of chair-back composed of one upper edge-bar, one lower edge-bar and two side edge-bars by fixing both ends of the upper and lower edge-bars on the rear-legs of the chair;    a set of edge-bars of the chair-seat composed of one front edge-bar, one rear edge-bar and two side edge-bars by fixing the two side edge-bars on the fix spot of the front-leg or by placing two side edge-bars on the extended-bar of the front-legs and fixing the side edge-bars on the front-leg and fixing both ends of the rear edge-bar on the rear-leg;    two metal-plates being die-cast, wherein a plurality of fit-rim installs on said metal-plate, and said fit-rim matching the frame formed by said edge-bars surround the four sides of said metal-plate and bending inwardly is used for fitting into the U-shape fixing slit of each edge-bar;    wherein said edge-bar having a principal part and an extended part is die-cast, and an U-shape fixing slit installs between said extended part and said principal part, and said extended part has several holes; after said fit-rim of said metal-plate fits into the U-shape fixing slit, said edge-bars and said metal-plate are welded or riveted with said several holes of said extended part into an unified connector, which is unable to be dismantled.