| 摘要 |
PROBLEM TO BE SOLVED: To grasp a correct remaining time by a colored transparent display sheet which is different in color from a scale part.SOLUTION: An annular scale part 32 is cut off from a center direction to a radial direction approximately at a place of a scale 0, and the cut off place is defined as a gap part 33 having a step. An operation part 40 disposed and rotated inside the annular scale part 32 is composed of a rotating board 41 and a colored transparent display sheet 42 attached to the rear side of the rotating board 41. The rotating board 41 is attached to a time counting part inside an exterior case 10 via a timer shaft. The rotating board 41 rotates the timer shaft when setting the time, and follows the rotation of the timer shaft when counting the time. The rotating board 41 is provided with a step, and the display sheet 42 has a cut part 49 at a location of the step part. An end part of the cut part 49 is pulled out from the gap part 33 onto the annular scale part 32 and rotated in a counter-clock direction together with the rotating board 41 during time measurement, and a remaining time is indicated by the end part of the cut part 49. |
