Chair frame for a seat, seat, method for producing the chair frame, tool for carrying out the method

摘要

The furniture has a backrest with a leaning part and two armrest bars that extend laterally forward from the leaning part. The armrest bars taper conically inside to a front end and exhibit sleeve-shaped receiving pieces. A tubular chair frame has two end sections (22) for fastening the chair frame to the backrest. Each end section of the chair frame exhibits a conical shaped outline (26). The end sections are arranged and fastened safely in the receiving pieces of the armrest bars in an installed condition. A seat is fastened to the chair frame and/or the backrest. The chair frame is formed from a metallic pipe. The seat and/or the backrest are manufactured from plastic molded parts. Independent claims are also included for the following: (1) a method for manufacturing a chair frame of a seat furniture (2) a tool for manufacturing a chair frame of a seat furniture.