| 摘要 |
PROBLEM TO BE SOLVED: To provide a calendar mechanism which enables easy and reliable adjustment of the phases of rotation of a first and second day wheels, and to provide an analog timepiece including this mechanism. SOLUTION: The calendar mechanism 1 of the analog timepiece 2 includes: a first day wheel 40 provided with a first date-character display part 43 for displaying the digit in the one's place of a date, a first day-wheel gear 42, and a drive cam 44 for regulating a cam surface in an endless ring shape; a drive cam lever 60 which is provided with a driven lever part 63 whose one end 64 comes in touch with the drive cam and an operation lever part 62 having a first sector gear 61 at its tip, and in which the operation lever part is rotated in compliance with the driven lever part; and a second day wheel 50 which is provided with a second date-character display part 53 for displaying the digit in the ten's place of the date and a second sector gear 52 meshed with the first sector gear, and is rotatable. The first sector gear 61 and the second sector gear 52 have specific tooth portions 68, 58 which are selectively meshed in a state that the phases of rotation of the first day wheel 40 and the second day wheel 50 are adjusted. COPYRIGHT: (C)2011,JPO&INPIT |
