| 摘要 |
PURPOSE: A variable seat is provided to comfortably seat in the seat by optionally controlling the sizes of a cushion and a backrest of the seat. CONSTITUTION: Each moving plate(15) is integrally moved with each cushion(10) and backrest(11) by sticking to the sides of the cushion and the backrest. Moving plates are rotated by containing each female screw potions(16). Adjusting rods(14) are screwed through each male screw portion(17) by penetrating through each moving plate. The adjusting rods move the cushions and backrests at different distances by using handles(19). Thereby, a seat is used more conveniently.
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