Multi-layered seat having different hardnesses and provided with skin, and process of manufacturing the same

摘要

A seat having various hardnesses provided with a surface material. The seat is air-permeable, has a tactile feeling of the seat surface and has a hardness capable of supporting a weight of a person who sits thereon. The seat (1) is covered with an air-permeable surface material (2) and comprises a foamed body having a shape generally corresponding to an external shape of the seat. The foamed body comprises a first foamed body (10) as a base of the foamed body and a second foamed body (6) connected thereon in one with the first foamed body. The first foamed body (10) has ascending parts (12, 13) which is formed on parts of a surface thereof corresponding to sucked and molded portions. A liquid foamable mixture is introduced and layered on the first foamed body (10) so as to thin about the sucked and molded portions and so as to thick a portion other than the sucked and molded portions. The mixture (15) introduced and layered on the first foamed body (10) is compressed between the first foamed body (10) and a pressure applying die having a shape corresponding to a shape of an upper part of the seat and positioning on the surface material placed on the mixture (15), when mixture (15) has completed a gas reaction thereof and is still in a visco-elastic flowing condition. The pressure applying die has suction holes, and the mixture (15) is simultaneously sucked through the suction holes. Thereby, The second foamed body (6) is connected in one with the surface material through a back surface of the surface material and is connected in one with the first foamed body through a surface of the first foamed body, and the second foamed body (6) can have a good tactile feeling of a surface thereof.