| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an access port apparatus which is constructed so as to satisfactorily maintain air tightness and heat insulation property of a room. SOLUTION: This access port apparatus is an apparatus to be installed on a ceiling, a wall, or a floor, for opening a rear side space of the same, and constituted of a frame member 4 installed on an opening of an interior finish material, and a cover member 6 fitted into the frame member through one edge thereof. The interior of the frame member 4 is formed into a tapering space, which progressively becomes smaller in cross section at a location closer to the deep edge of the frame member 4, and the cover member 6 is formed into a tapering block which makes close contact with an internal wall of the frame member 4 when fitted into the interior of the frame member 4. Furthermore, the frame member 4 and the cover member 6 are each formed of a synthetic resin having thermal conductivity of a predetermined value or less.</p> |
