Abstract: Since each covering portion (each side frame) is interposed between a first leg portion and a second leg portion of a corresponding one of insert members, even if a relatively large load is applied to side portions of a cushion pad from an occupant, it is possible to restrict deformation of the side portions toward outer sides in left-right directions (rotation of the insert members) by engagement of each support frame with the first and second leg portions. Therefore, it is possible to improve the ability to support an occupant by the side portions.

Abstract: A vehicular seat provided in a seat surface with a deep and narrow depression having a flat surface at the bottom is provided. The vehicular seat is a seat for automobiles including: a seat cushion to be a seating face portion of the seat; and a seat back provided on the back of the seat cushion and to be a backrest portion of the seat. A recess having a flat surface at the bottom is provided in the surface of at least one of the seat cushion and the seat back.

Abstract: A vehicular seat provided in a seat surface with a deep and narrow depression having a flat surface at the bottom is provided. The vehicular seat is a seat for automobiles including: a seat cushion to be a seating face portion of the seat; and a seat back provided on the back of the seat cushion and to be a backrest portion of the seat. A recess having a flat surface at the bottom is provided in the surface of at least one of the seat cushion and the seat back.