| 摘要 |
A seat frame structure includes a seat cushion frame (2), a seat back frame (3), and a connecting bracket (4) connecting the seat cushion frame to the seat back frame. The seat cushion frame includes a first beam portion having an internal space in at least one of a left/right side edge portion. The seat back frame includes a second beam portion having an internal space in at least one of a left/right side edge portion. The connecting bracket includes a first arm portion (13) inserted into the internal space of the first beam portion and connected to the first beam portion and a second arm portion (14) inserted into the internal space of the second beam portion and connected to the second beam portion.
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