| 摘要 |
A multi-layered seat having different hardnesses and provided with a skin, having permeability, a good texture and a hardness capable of bearing the weight of a person who sits on the seat. A seat (1) is covered with a skin material (2) having permeability, and comprises a foamed body having an external shape substantially corresponding to that of the seat. The foamed body comprises a first foamed body (10), which constitutes the base of the foamed body, and a second foamed body (6), which is unitary on and with the first foamed body. The first foamed body (10) is provided at the surface thereof with projections (12, 13), which correspond to suction molded portions. A liquid foaming mixture is put in and build up on the first foamed body (10) so that it is thin on the suction molded portions and thick on the other portions. Using the first foamed body (10) and a pressure die which is disposed on the skin material above the liquid foaming mixture, has a shape of the top portion of the seat and is provided with suction ports, the mixture (15), of which the gas reaction has finished but which remains in a fluid state, is compressed, while performing suction through the suction ports, to thereby form the second foamed body (6) which is integral with the back surface of the skin material and the surface of the first foamed body and has a good texture. |
