TIMEPIECE WITH A CALENDAR NUMBER MECHANISM

专利名称：TIMEPIECE WITH A CALENDAR NUMBER

MECHANISM

发明人：Frederic Crettex申请号：US12304132申请日：20070531

公开号：US20090201770A1公开日：20090813

专利附图：

摘要：Timepiece with a perpetual calendar number mechanism, including: a timeswitch, a display device including a mobile () whose position is determined by the calendarmonth number, a correction device () cooperating with said display device and

guaranteeing its drive at the end of months having less than thirty-one days. Thismechanism includes, in addition: a month mechanism () with a period of one year andincluding a cam advancing by steps, one step per month, a programming mechanism ()driven by the time switch and cooperating with the month mechanism () and having amobile () cooperating with the correction mechanism () to make it advance, during themonth, by as many steps as the month counts days in less than thirty-one days. Thismechanism enables the energy required to perform the correction to be withdrawnduring the month, and restored at the time of the automatic correction.

申请人：Frederic Crettex

地址：Prangins CH

国籍：CH

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