| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a coupling structure of a cover which can make a worker recognize surely that the engagement part of the cover is engaged with an engagement hole of an elastic engagement arm even if the cover is made of relatively soft material, etc. <P>SOLUTION: An engagement part 28 is made to protrude from an upper cover 21 and an elastic engagement arm 30 having an engagement hole 31 is provided on a side cover 22. If the upper cover 21 and the side cover 22 are made to come closer to each other, the tip of the elastic engagement arm 30 is pressed against the engagement part 28b and deformed elastically, so that the upper cover 21 and the side cover 22 are allowed to come closer to each other. If the elastic engagement arm 30 is inserted to a position where the position of the engagement hole 31 of the elastic engagement arm 30 and the position of the engagement part 28 agree with each other, the tip of the elastic engagement arm 30 is elastically bent and restored and the engagement part 28 is engaged with the engagement hole 31 of the elastic engagement arm 30. In such a coupling structure of the cover, a sound generating protrusion 32 is formed on the inner surface of the tip part of the elastic engagement arm 30. <P>COPYRIGHT: (C)2003,JPO</p> |
