| 摘要 |
<p>PURPOSE:To prevent a front grille from coming into surface contact with a corner of a frame main body induced by one sided hitting against the corner of the frame main body when fixing the front grille by forcing a surrounding matching part of the front grille to come into line contact with a projection installed to the corner of the frame main body. CONSTITUTION:When fixing a front grille 4 with a frame main body 1, a hook in the upper part of the front grille 4 is engaged with a hook claw 2 in the upper part of the frame main body 1. A surrounding setting part 7 of the front grille is set to the frame main body 1. During this setting operation, the setting part of the front grille 7 comes into line contact with a projection 9 installed at a corner of the frame main body 1 and positioned without one sided hitting. A screw fixing part in the lower part of the front grille 4 is fixed with a threaded socket 3 in the lower part of the frame main body 1 with screws. This construction makes it possible to minimize the contact area and set the front grille smoothly.</p> |
