Calendar mechanism and analog timepiece equipped w

专利名称：Calendar mechanism and analog timepiece

equipped with same mechanism

发明人：Kei Hirano申请号：US12925375申请日：20101020公开号：US08279717B2公开日：20121002

专利附图：

摘要：To provide a calendar mechanism which can easily and reliably cause first andsecond date indicators to coincide in rotation phase, and an analog timepiece equippedtherewith. A calendar mechanism of an analog timepiece includes a first date indicator

including a first date character indication portion which indicates the ones column of thedate, a first date indicator gear portion, and a drive cam portion which defines an endlessring-shaped cam face; a drive cam lever which includes a driven lever portion whose oneend portion abuts against the drive cam portion, and an operating lever portion whichincludes a first fan-shaped gear portion at the leading end portion, the operating leverportion being pivoted in accordance with the driven lever portion; and a second dateindicator which, being rotatable, includes a second date character indication portion whichindicates the tens column of the date, and a second fan-shaped gear portion meshingwith the first fan-shaped gear portion. The first fan-shaped gear portion and second fan-shaped gear portion have specified teeth which are brought into selective meshingengagement in a condition in which the first date indicator and second date indicatorcoincide in rotation phase.

申请人：Kei Hirano

地址：Chiba JP

国籍：JP

代理机构：Adams & Wilks

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