| 摘要 |
A case includes first and second halves, each having an opening in its one side, combined together with the openings opposed to each other. A moving member is accommodated within the case and slidingly movable along a movement guide. An operator is connected to the moving member. The operator has a proximal end connected to the moving member, a free end projecting outwardly from an upper surface of the case, and a bent portion bent between the both ends. Tops of the first and second halves are displaced from each other, in a direction vertical to the upper surface, to form a gap permitting entry of the operator. Edge regions of the tops of the both halves overlap with each other in the direction vertical to the upper surface, and the bent portion is bent so that the free end projects outwardly through the gap in the overlapping regions.
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