| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem of the conventional pipe covering device that since a ventilation hole having a mosquito net is provided in a position opposite to an opening part of a penetrating hole provided in a wall, rain or snow enters the inside of the pipe covering device through the ventilation hole to enter the inside of a building. <P>SOLUTION: In this pipe covering device, the ventilation hole 11 for supplying and discharging the air in an air flow passage to and from the outside of the pipe covering device is provided in the side of the pipe covering device 1, a hood-like ventilation hole cover 3 for covering the ventilation hole 11 is provided extending in the vertical direction of the pipe covering device 1, and a net 12 is provided at the tip part of the open side of the ventilation hole cover 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
