| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems of a conventional environmental testing device that the device equipped with a revolving door requires a space for its opening operation and a wide installation area, and that the device equipped with a sliding door requires movement of the door in the different direction and a complicated and expensive mechanism. SOLUTION: A sliding thermally insulating door 7 of the environmental testing device is moved and guided by a pair of front-and-back guide grooves formed on a guide rail 6 and having the terminals bent in the opening direction of a laboratory 2. A shaft 14 engaged with the insulating door 7 movably in the penetrating direction is moved by rotation of a screw shaft 10, to thereby allow the insulating door 7 to move in the front-to-back direction and to move simultaneously in the transverse direction.
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