| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a filter which can be fitted and removed easily and certainly, regardless of its installation site. <P>SOLUTION: This filter 12 includes a first body 20, a case unit 22 connected with the lower part of the first body 20 and a filter unit 24 housed inside the case unit 22. In addition, the case unit 22 comprises an outer case 40 of a bottomed cylindrical shape made of a transparent material with permeability and an inner case 42 to be inserted into the outer case 40. Further, the case unit 22 is to be inserted into a fitting hole 36 opened in the lower part of the first body 20 and then is made to rotate. By so doing, a projecting part 58 and a retaining wall 56, both arranged on the outer circumferential surface of the case unit 22 are to be fitted into a support part 38 arranged in the fitting hole 36. Thus, the projecting part 58 and the retaining wall 56 are placed in a connected state. <P>COPYRIGHT: (C)2013,JPO&INPIT |
