| 摘要 |
PROBLEM TO BE SOLVED: To provide furniture whose size of available support area to sufficiently support a user's weight load can be changed corresponding to the body constitution of the user to give the user comfortable using feeling. SOLUTION: This furniture A1 is equipped with a stretched material 1 to receive and support a user's weight load on the surface side of the furniture main body A1a and a support part Z1 equipped on the furniture main body A1a to support the stretched material 1 in a tensed condition. The size of the available support area X1 of the stretched material 1 can be changed corresponding to the position of the stretched material 1 supported by the support part Z1.
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