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AssigneeNamba Press Works Co., Ltd.
InventorsTaro Ogawa, Yasumasa Senoo, Takeshi Watadani, Yasuyuki Toda
Estimating the term…
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 the weight of a person who sits thereon. The seat (1) is covered with an air-permeable surface material (2) and has a foamed body having a shape generally corresponding to an external shape of the seat. The foamed body includes a first foamed body (10) as a base of the foamed body and a second foamed body (6) connected integrally with the first foamed body. The first foamed body (10) has ascending parts (12, 13) which are formed on parts of a surface thereof. In the method for manufacturing the seat, the mixture (15) is introduced and layered on the first foamed body (10) and the surface material (2) is placed thereon. The mixture 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 when it 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 and the first foamed body.
A method for manufacturing a seat comprising the steps of:
A seat constructed of foam and covered by surface material, the seat comprising a first foamed body constituting a base and having an upper surface with a flat central part, with ascending parts on both sides of said flat central part, and with rising side surfaces outwardly of said ascending parts, a second foamed body overlying and impregnated into said first foamed body, said second foamed body having a main part of generally uniform thickness attached to said flat central part of said first foamed body, having a part attached to said ascending parts of said first foamed body that is relatively thin in relation to said main part and having slope portions attached to said side surfaces of said first foamed body becoming gradually thinner, and said surface material covering and attached to at least said second foamed body.
Dependencies are inferred from the claim text.