| 摘要 |
A sealing device of a suction type placing table directed to achieving smooth feeding and discharging of an even laminate of sheet material which largely changes in volume depending on suction and that can keep a desired cutting accuracy is provided. When a sealing device is used, in a pressing state, it is easy to satisfy a condition of the distance Ha<Hc, thus obtaining the distance Da<Dc, so that the to-be-cut material can be sufficiently covered with a sealing sheet and moreover, the cutting accuracy can be enhanced. In a non-pressing state, a condition of the distance Hb>Hc can be satisfied, thus allowing easy feeding and discharging of the to-be-cut material which may be bulky.
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