| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable claws to be easily inserted into a claw receptor and further to enable the claws to be easily fixed to a suction opening. SOLUTION: This fixing structure is comprised of flexible frame sections 12 and a filter section 13 between the frames. The upper side 12c of each of the frames 12 is engaged with the upper edge of a suction opening 20 of a main body of a front surface grill, the lower side 12b of the frame 12 is abutted against the lower edge 21 of the suction opening 20. A pair of claws 14 arranged at the lower side 12b and projected downwardly are inserted into a pair of claw receptors 22 so as to cover the suction opening 20. In this case, a rib 2 is arranged at the lower side 12b of the frame 12 to project outwardly in perpendicular to the filter surface over an entire length between a pair of claws 14, and a recess 3 is cut and formed down at least to a depth of the upper edges 22a of the claw receptors 22 between a pair of claw receptors 22 at the lower edge 21 of the suction opening 20.</p> |
