Chair Museum / Simultaneous Molding of Plastics
The Okamura Museum was established in 2009. Visitors can learn about the technical and technological history of chair making and also the role of plastics in achieving more comfortable chairs based on ergonomics. (For more information, see the January 2013 issue of the PR magazine pla-topia.) http://www.okamura.co.jp/guide/museum/
Simultaneous Molding of Plastics (1990-)
The SX Chair that debuted in 1996 adopted a variable hardness cushion in both the back and seat molded simultaneously in one-piece from urethane of varying hardness.
The traditional slab molding method formerly employed whereby urethane foam blocks were cut and inserted was switched to one whereby the foam was soft in areas where pressure is not required and it was firm in areas where support is required. This realized ideal sitting comfort. A specialist urethane molding manufacturer handled such cushion parts and this simultaneous molding is Okamura's own proprietary technology.
