| 摘要 |
<p>PURPOSE:To enable an airtight door to smoothly move up/down and open/close at the time of opening/closing this airtight door in a gas cooled storage automated warehouse. CONSTITUTION:Air cylinder devices are provided respectively on both sides of an openable airtight door 11 each arranged on the side of a refrigerator main chamber 1 and on the side of the warehouse outside 6 of a front chamber 7 and equipped with a rubber pipe type seal capable of holding the inside of the front chamber 7 airtightly, and the air cylinder device provided in the front chamber 7 is operated to release a closed state of the airtight door 11 when the door 11 is opened. When the door 11 is closed, the air cylinder device provided on the side of the refrigerator main chamber 1 or on the side of the warehouse outside 6 is operated to hold the closed state of the airtight door 11.</p> |
