| 摘要 |
The present invention improves rigidity to the extent that side frames are prevented from falling inward in a structure for connecting the bottom ends of the side frames by means of a connection frame. A seat frame (F) for a vehicle seat (S), the seat frame (F) having side frames (11) disposed on both ends of a seat back frame (F1) in the width direction, and a bottom member frame (31) for connecting the bottom ends of the side frames (11) which attach to a seat cushion (S2), wherein: each side frame (11) has a side wall (12) which is positioned on the outside in the width direction and which extends in the vertical direction, and a back wall (13) which extends from the side wall (12) towards the inner side in the width direction; and the lower member frame (31) has a first extension portion (32) extending along the width direction, and second extension portions (33) extending from both ends of the first extension portion (32) in the width direction towards the front. The second extension portions (33) are positioned further inward than the side walls (12) in the width direction and overlap with the side walls (12). |
