发明名称 Annual calendar mechanism for a clock movement
摘要 <p>The mechanism has a mobile month drive (52) provided for driving a month star (54) at the end of each month. The drive is connected to a mobile date drive (32) and mobile correction drive (42) via driving wheels (36, 56). The drive (52) occupies a position, in which the drive (52) has no effect on the star such that a kinematic chain between a date disk and the star is broken, and another position, during changing of the month, in which the drive (52) activates the star to advance the star to a step such that a correction device acts on the date disk without affecting the star and vice versa.</p>
申请公布号 EP1785783(A1) 申请公布日期 2007.05.16
申请号 EP20050024628 申请日期 2005.11.11
申请人 ETA SA MANUFACTURE HORLOGERE SUISSE 发明人 BRON, ALPHONSE
分类号 G04B19/253;G04B19/25 主分类号 G04B19/253
代理机构 代理人
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