| 摘要 |
PURPOSE: A functional pillow controlling height is provided to control the height by injecting an amount of air suitable for inner cushion or outer cushion and controlling the expansion according to the taste of a user. CONSTITUTION: A tube type inner cushion(100) has a first charging space inside. An outer cushion(200) has a second charging space formed by attaching both sides of the inner cushion to both sides of the inner surface. A first injection hole(120) is connected to the first charging space of the inner cushion on the outer surface of the outer cushion. A second injection hole(220) is connected to a second charging space of the outer cushion.
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