| 摘要 |
PURPOSE: A chair with a spandex-based seat back is provided to allow several people to sit and to improve the comfortability of the people. CONSTITUTION: A chair with a spandex-based seat back includes a main body(1), a support(2), and a fabric part(3). The support is stood at the center of the main body. The fabric part is expandable and functions as a seat back. The fabric part is made of spandex. The expended fabric part is collected and fixed at the lower part of the chair. The upper side of the fabric part is fixed to the support.
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