| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an internal filtration device to be installed in an aquarium, enabling one-touch mounting or dismounting of a filter case and a lid to facilitate maintenance work such as change of filter medium. <P>SOLUTION: The filtration device comprises the filter case C, the lid plate L and a filter unit U. Locking pieces 45 engageable with locking holes 13 at both sides of the filter case C are attached to both sides of the lid plate L. The locking piece 45 is released from the locking hole 13 by elastically deforming the piece toward the inside of the lid plate L and engaged with the locking hole 13 by elastically restoring it outward in the radial direction of the lid plate L. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
