| 摘要 |
<p>PURPOSE:To prevent the temporary rise of the humidity in a moisture-proof store by arranging a working apparatus or the like provided with two cam mechanisms, and separately opening and closing a shutter inside the store and a shutter outside the store. CONSTITUTION:In the stage of reproducing a hygroscopic agent in a dry unit 14, because a shutter 11 inside the store is closed and a shutter 12 outside the store is opened, by heat issued from a positive temp. coefficient thermistor 14, the hygroscopic agent in the dry unit 13 is heated to convert moisture absorbed in the hygroscopic agent into steam. Because the shutter 11 inside the store is closed, the above steam is discharged outside the store via the opened shutter 12. By removing this moisture absorbed in the hygroscopic agent, the reproduction of the hygroscopic agent is executed. When the reproducing stage of the hygroscopic agent in the dry unit 13 approaches to its end, the shutter 12 gradually moves to the position to be closed, and when the shutter 12 outside the store reaches the position shown by the continuous line, the positive temp. coefficient thermistor 14 becomes off state, and the reproducing stage of the hygroscopic agent in the dry unit 13 is finished.</p> |
