| 摘要 |
PROBLEM TO BE SOLVED: To prevent a block-like filter from dropping and at the same time smoothly take in/out a filter member at the time of attaching and detaching the filter member to and from a case main body. SOLUTION: A filter member F is formed by uniting the rear side circumferences of a holding frame 12 and a block-like filter 11a inserted into the inside of the frame 12 by a packing material 13, and the holding frame 12 is constituted of a cover member 12a to close an aperture of a case main body 15, a leg plate 12b provided with a projecting part 12b1 in the front edge, and a bottom plate 12 and is opened in the front and the rear parts. On the other hand, a case main body 15 is manufactured by butting an inlet case 15A and an outlet case 15B. A guiding wall 15A5 widened upward is installed in the middle of a lower side of the inlet case 15A, a groove part 15A6 is formed in the guide wall, the filter member F is inserted into the case main body 15 by inclining the filter to the front side through the aperture, the projecting part 12b1 of the leg plate 12b is fitted in the groove part 15A6 , and the filter member F is rotated backward on the fitted contact point as a fulcrum. Moreover, a clip member 18 attached to an upper part of the outlet case 15B is engaged with the cover member 12a and the packing material 13 is press-contacted to the wall face of the outlet case. |
