| 摘要 |
PROBLEM TO BE SOLVED: To facilitate manufacturing and to reduce cost by forming at least one vertical supporting part constituting a seat back frame out of a pair of telescoping tubular materials and shaping the tubular materials into a desired, narrow, and integrated tubular structure. SOLUTION: A seat assembled body 10 for automobiles is provided with a seat frame assembled body 12 including a seat frame 14 and a seat back frame 16, and the seat frame 14 comprises a side bracket 18 and a lateral bracket 20. The seat back frame 16 is connected to the seat frame 14 and comprises a pair of separate metal vertical supporting parts 34, and one of the vertical supporting parts 34 is formed of a pair of telescoping tubular materials. The telescoping tubular materials are configured of a narrow inner metal material 36 which is formed as an integrally formed vertical member and extended from the lower part to the upper end of the seat back frame 16 and a short outer metal material 46 which is formed as a sleeve fixed round the lower part of the inner metal material 36. |
