| 摘要 |
A flexible base board for a chair, easily bends into a desirable shape. The base board fits more appropriately to the body of a person seated on the chair following the shape of the person~s body without pressing the back etc., thereby providing the person with good sitting comfort. The flexible base board is used for the backrest etc. of a chair. The base board has an upper shell (4), an intermediate shell (5), and a lower shell (6). A large number of holes (14) having substantially the same size are substantially uniformly formed in the entire surfaces of the upper shell (4) and of the lower shell (6). Also, a large number of holes (15) are formed in the entire surface of the intermediate shell (5), and each hole (15) has a greater transverse width than a hole (14) in the upper shell (4) and the lower shell (6). |
