| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a retrograde display mechanism capable of minimizing positional deviation of display and a watch equipped with the same. <P>SOLUTION: A retrograde display mechanism 1 of a watch 7 comprises: a time value (day or week) turning wheel 70 rotated once a day; a transfer wheel 20 provided with a transfer gear 24 rotated by an amount of one tooth a day by the turning wheel and with a drive cam 30; an actuation lever 60 provided with a cam follower 61 and with an actuation gear 64; a fan-like wheel 40 provided with a fan-like wheel gear 41 engaged with the actuation gear and rotated according to oscillation of the actuation lever and with a fan-like wheel display part 42 and returning to an initial position at the month-end, etc.; a fan-like wheel jumper 50 which makes the fan-like wheel gear jump and stop; and regulation release means 27 which releases a regulation by the fan-like wheel jumper at the month-end, etc. The regulation release means includes an initialization instruction engagement tooth 80Z4 as well as interlock mechanisms 27a and 54 releasing the regulation of the fan-like gear via an initialization instruction engagement pawl 90 making a transfer wheel jumper largely rotate when passing over the initialization instruction engagement tooth and a fan-like wheel jumper for each month-end and the like. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
