| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic instrument having a rotating operation mechanism, which is able to avoid a setting mistake resulting from an unintentional rotation of a rotation member and a setting mistake when an operation member is rotated without viewing it, and which is excellent in operability. <P>SOLUTION: The rotating operation mechanism of an electronic instrument comprises: the operation member 9 which can be rotated and has a plurality of clicking recesses 13 in the direction of a rotating operation; an engaging member 14 that engages with the clicking recesses 13; and an energizing member 15 that presses the engaging member 14 toward the clicking recesses 13. By rotating the operation member 9, the engaging member 14 separates from each of the clicking recesses 13 against the energizing force of the energizing member 14. The separated engaging member 14 moves over a space between the clicking recesses 13 adjacent to each other and engages with the adjacent clicking recess 13 by means of the energizing force of the energizing member 15. One of the surfaces of one of the clicking recesses 13, which surfaces are opposite to each other in the direction of the rotation of the rotation member 9, has a restricting surface 16, which restricts the rotation of the rotation member 9 only in one direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
