| 摘要 |
PURPOSE: A desk height raising device is provided, which controls a height of the desk to match each student, can be easily set up and used. CONSTITUTION: A height raising device for a desk comprises a desk supporting body(10a), a rest(10b), a bolt(30), a plastic holder(31) which forms a nut inside and is penetrated an inside supporting rod, tightened to fix a pipe of a desk leg and the supporting rod supporting the desk legs, and 1cm, 2cm and 3cm of spare rings(21),(22),(23) lifting 1cm of height each additionally as students grow.
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