| 摘要 |
PROBLEM TO BE SOLVED: To provide a piping cover which enables an anti-insect filter and an anti-insect filter cover to be removed together and can improve workability by detaching the anti-insect filter from a piping cover body via a rotating/engaging/disengaging means. SOLUTION: The piping cover includes: the piping cover body 2 attached to an outer wall; the anti-insect filter 3 attached detachably to the piping cover body 2; the anti-insect filter cover 4 attached detachably to the anti-insect filter 3 in a state of covering the outside of the anti-insect filter 3; and the rotating/engaging/disengaging means 10, which is provided between the anti-insect filter 3 and the piping cover body 2 and which makes the anti-insect filter 3 engaged to/disengaged from the piping cover body 2 together with the anti-insect filter cover 4 by rotating operation. The rotating/engaging/disengaging means 10 includes: a recessed part 12a provided on the inner circumferential surface 11a of a circular hole 11 formed in the piping cover body 2; an annular projection 13 formed on the anti-insect filter 3 and positioned by being fitted into the circular hole 11; and a projection 14a formed on the annular projection 13 and that can be engaged to/disengaged from the recessed part 12a when the annular projection 13 is rotated to a specified angle relative to the circular hole 11. COPYRIGHT: (C)2011,JPO&INPIT |
