US Patent 10543765 Vehicle seat

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.