| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve sealed extent of a hole for introducing cables independently of number of cables to be introduced into the hole, and to prevent creeping-in of harmful insects, and especially, to reduce suction of dust in a forced air- cooling type apparatus. SOLUTION: Superimposing on each other an elastic sheet 1 provided with a plurality of slits 2 parallel with the opening portion of a hole 6 for introducing cables and an elastic sheet 3 provided with a plurality of slits 4 parallel with each other and orthogonal to the slits 2, the sheets 1, 3 are attached to an attachment frame 5 to block the opening portion of the hole 6. The cables are passed through a plurality of places wherein the slits 2 of the sheet 1 intersect the slits 4 of the sheet 3 to reduce the area of the foregoing opening portion in this state.</p> |
