| 摘要 |
PURPOSE: A working(desk) chair for correction of posture is provided to conveniently support waist portion during sitting on the chair for long time, in turn, to achieve improvement of office environment. CONSTITUTION: The chair comprises a sitting portion(3), a spring, a rotational steel part(12) moving around a pin(13) when the spring falls down, a pipe and backing portions(1,2,4) to enclose waist of a user, and another spring(9) to support the waist. The backing portions(1,2,4) move around a connection rubber(4) to obtain flexibility to surround the waist and have rear straight parts and grooves inside thereof.
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