Abstract: The present invention realizes a vehicle seat that allows for smooth movements of the shoulders of a sitter while maintaining a good fit for the sitter. The vehicle seat comprises a back seat having a lower part that supports a lower back area of a sitter, a central part that supports a ribs area, and an upper part that supports a shoulder blades area. The central part has a front surface formed so as to be wider than the lower part and the upper part as viewed from the front side, the front surface being curved with right and left ends thereof being projected forward. The seat back has a notched shape extending from the central part to the upper part such that shoulders of the sitter are exposed as viewed from the rear side.

Abstract: A headrest includes a stay having left and right legs; a headrest main body attached to the stay and able to rotate in a front-rear direction; a pair of elongated holes made in a bottom surface of the headrest main body and a pair of closing members arranged on the bottom surface of the headrest main body, covering the elongated holes, wherein each closing member includes a main plate and a sub-plate, the main plate has an insertion hole guiding one leg of the stay and moves in the front-rear direction as the main plate is rotated, and the sub-plate is provided, overlapping the main plate, and is able to move as the main plate moves; the main plate and the sub-plate may move as the headrest main body is rotated, while covering the elongated hole made in the bottom surface of the headrest main body.

Abstract: The present invention realizes a vehicle seat that allows for smooth movements of the shoulders of a sitter while maintaining a good fit for the sitter. The vehicle seat comprises a back seat having a lower part that supports a lower back area of a sitter, a central part that supports a ribs area, and an upper part that supports a shoulder blades area. The central part has a front surface formed so as to be wider than the lower part and the upper part as viewed from the front side, the front surface being curved with right and left ends thereof being projected forward. The seat back has a notched shape extending from the central part to the upper part such that shoulders of the sitter are exposed as viewed from the rear side.

Abstract: A headrest includes a stay having left and right legs; a headrest main body attached to the stay and able to rotate in a front-rear direction; a pair of elongated holes made in a bottom surface of the headrest main body and a pair of closing members arranged on the bottom surface of the headrest main body, covering the elongated holes, wherein each closing member includes a main plate and a sub-plate, the main plate has an insertion hole guiding one leg of the stay and moves in the front-rear direction as the main plate is rotated, and the sub-plate is provided, overlapping the main plate, and is able to move as the main plate moves; the main plate and the sub-plate may move as the headrest main body is rotated, while covering the elongated hole made in the bottom surface of the headrest main body.