| 摘要 |
<P>PROBLEM TO BE SOLVED: To combine a vacuum control device capable of semi-permanently retaining thermal insulation property of a highly airtight thermal insulation member and a burglarproof security system, with detecting abnormal change in the degree of vacuum. <P>SOLUTION: A multi-layered thermal insulation member 10 retains a minimum clearance by the strength of a glass and controlled vacuum without having a clearance retaining member for an airtight space part 14. Suction/connection nozzles 11 and the vacuum control device 80 are connected by a high vacuum tube 81 and a medium vacuum tube 86. A second airtight space part 96 is connected to a high vacuum part of the vacuum control device 80 via the suction/connection nozzle 11 and the high vacuum tube 81. A first airtight space part 95 and a third airtight space part 97 are connected to communicate with the medium vacuum part via the medium vacuum tube 86. The degree of vacuum is controlled by the vacuum control device 80. Connection to the burglarproof security system 99 is made to enable communication when an abnormal change in the degree of vacuum in the airtight space part 14 of the glass part of a door, sash or a fitted glass is detected. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
