| 摘要 |
A cushion sheet for a chair is disclosed. The cushion sheet includes an adhesion part (11), which has a curvature corresponding to that of the frame of the chair, cushion cells (12), which are formed by the adhesion part, and ventilation passages (13), which are defined between the cushion cells. Each cushion cell includes a base layer (22), a cover layer (21) and a sponge layer (23), which is provided between the base layer and the cover layer. The ventilation passages are defined by extending portions of the cover layer around the cushion cells such that extended portions of the cover layer are brought into close contact with the base layer. The adhesion part is formed by adhering the extended portions of the cover layer to the base layer using a sponge hot melt, which is formed by melting portions of the sponge layer corresponding to the ventilation passages.
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