Patent ID: 8662579

Claim:
A vehicle seat comprising; a cushion pad including a passenger facing surface, a non-passenger facing surface, an air passage having a main passage and a branch passage, and at least one bypass air passage, the main passage extending from an air introducing port disposed at the non-passenger facing surface to the branch passage, the branch passage being formed along the passenger facing surface, the bypass air passage extending from the branch passage in a vehicle-widthwise direction of the cushion pad; a breathable outer cover disposed over the passenger facing surface of the cushion pad; and an air permeable material layer disposed between the cushion pad and the breathable outer cover, the air permeable material layer including a plurality of vent outlets passing through in a thickness direction of the air permeable material layer, the vent outlets being arranged in a direction perpendicular to the vehicle-widthwise direction, the bypass air passage extending from the branch passage in the vehicle-widthwise direction adjacent one of the vent outlets, the bypass air passage including a pair of side faces facing with respect to each other and an end face connecting the side faces together and blocking air blown through the branch passage and into the bypass air passage, the bypass air passage having an interior cross sectional passage size, which narrows as viewed in a top plan view of the passenger facing surface, as the bypass air passage moves toward a terminal end of the bypass air passage, the terminal end being defined by the end face of the bypass air passage, the branch passage and the bypass air passage being at least partially open on the passenger facing surface where the cushion pad borders with the air permeable material layer such that the air blown through the branch passage is distributed to the vent outlets and the blown air flows along the bypass air passage in a direction transverse to the thickness direction of the air permeable material layer.