| 摘要 |
PURPOSE: To reliably and easily switch mutual time displays of standard time and summertime to/from each other by dislocating only an hour pointer by simple operation. CONSTITUTION: An hour pointer wheel T is separated into an hour pointer gear 12 and an hour pointer pipe 13, and the hour pointer pipe 13 is movably fitted in the shaft direction to the hour pointer gear 12. A cam groove 12b is slantingly arranged in the shaft direction in the hour pointer gear 12, and a projection 13b to be fitted to the cam groove 12b is arranged in the hour pointer pipe 13. An actuating member 14 which engages with a collar part 13c of the hour pointer pipe 13 and interlocks with a switching lever mechanism K, is provided. The actuating member 14 is swung by operating the switching lever mechanism K from outside. The hour pointer pipe 13 pressed by an engaging part 14a of the actuating member 14 moves in the shaft direction, and is guided by the cam groove 12b, and is displaced in rotation in the direction for setting one hour forward in the clockwise direction. Therefore, display can be switched to summertime display. |
