Annual calendar mechanism for timepieces

专利名称：Annual calendar mechanism for timepieces发明人：VAUCHER, FRANK申请号：EP96111363.6申请日：19960715公开号：EP0756217B1公开日：19990602

摘要：The mechanism has a day ring(1) with 31 teeth(2) ,fitted inside the ring, on whichnumbers 0 -31(3) are placed, and a movable day-ring driver(6) which rotates once every24 hours. The driver(6) is fitted with a first finger(7) which is driven, step by step by theinterior teeth(31) of the ring(1), once a day. The driver (6) controls the date display. Inaddition the mechanism has an annular crown wheel(8), partially superposed on the datering(1), which rotates once a year. It has exterior teeth(9) in position corresponding to the12 months of the year and 5 interior teeth(10) in positions corresponding to 31 daymonths. The crown wheel(8) is eccentrically arranged with respect to the ring(1) and nearto the driver(6) which has a second finger(11). At the end of months of less than 31 daysthe second finger(11) acts on one of the 5 internal teeth(10) of the wheel(8) so that it isadvanced, via a gear system(12,13) fixed to the ring(1) to the first of the following month.A manual correction is required for the month of February.

申请人：COMPAGNIE DES MONTRES LONGINES, FRANCILLON S.A.,LONGINESMONTRES COMP D,COMPAGNIE DES MONTRES LONGINES, FRANCILLON S.A.

地址：CH

国籍：CH

代理机构：Patry, Didier Marcel Pierre

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