| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve usability of a lock structure of a lid. <P>SOLUTION: An engaged piece 15 of a lid 5 closing an opening 4 of an upper case 3 is engaged with an engagement protrusion 8 of the upper case 3, so as to restrain a movement of the lid 5 in a direction of an arrow B. An engagement piece 17 of the lid 5 is engaged with a pawl part 26 of an engagement piece 25 of a lower case 2, so as to restrain an upward movement of the lid 5. While the lid 5 is being inclined, when the engaged piece 15 is engaged with the engagement protrusion 8, an inclined face 27 of the pawl part 25 comes into contact with an inclined face 18 of the engagement piece 17. When the lid 5 is pressed downward, the engagement piece 25 ie elastically deformed by a cam action of the inclined faces 17, 18, and the engagement piece 17 is engaged with the pawl part 26 of the engagement piece 25. <P>COPYRIGHT: (C)2012,JPO&INPIT |
