| 摘要 |
<p>PURPOSE:To cleanly and sanitarily exchange the filter by releasing the fixing device which fixes the filter received in a sheath type filter case so as to be detached along rails. CONSTITUTION:When a laminated filter 7 is to be exchanged because the capacity of dust correcting and deodorizing is reached to a limit, the push plate part 21 of the sheath type filter case 15 is pushed by hand. When this pushing force becomes stronger than the upward force of the spring for hook, the side of the pushing plate part 21 of the hook 18 moves downwards along a circular orbit. Then, a claw part 19 moves upwards to release the engagement with a recessed part 14 of the rail 13, and the fixation of the laminated filter is released. When this operation is carried out above a garbage box so as to direct the opening part of the sheath type filter case 15 downwards, the laminate filter 7 released from fixation slides down by its own weight to be abandoned without using hands.</p> |
