US 11,733,653 B2
Device for displaying a succession of periodic events that form an annual cycle and timepiece comprising such a display device
Stephane Bachmann, Bueren an der Aare (CH)
Assigned to ETA SA Manufacture Horlogere Suisse, Grenchen (CH)
Filed by ETA SA Manufacture Horlogere Suisse, Grenchen (CH)
Filed on Mar. 20, 2020, as Appl. No. 16/824,937.
Claims priority of application No. 19168378 (EP), filed on Apr. 10, 2019; and application No. 19212220 (EP), filed on Nov. 28, 2019.
Prior Publication US 2020/0326658 A1, Oct. 15, 2020
Int. Cl. G04B 19/22 (2006.01); G04B 19/247 (2006.01)
CPC G04B 19/223 (2013.01) [G04B 19/247 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A device for displaying a succession of periodic events which form an annual cycle, said display device comprising:
a periodic event indicator organ;
a mechanism for managing a duration for displaying periodic events by the periodic event indicator organ, said management mechanism comprising:
a cam for managing a periodic event display duration arranged to control the change from the indication of a periodic event to the indication of a next periodic event by the periodic event indicator organ;
a date indicator mechanism driven by a horological movement;
a month finger controlled by the date indicator mechanism so as to advance the management cam by one pitch per month, and
a periodic event finger disposed between the management cam and the periodic event indicator organ and arranged to drive the periodic event indicator organ during a change of periodic event,
wherein the date indicator mechanism comprises a date driving wheel which performs one complete turn per day and which drives a date indicator wheel at the rate of one complete turn in thirty-one days, and
wherein the month finger is pivotally mounted on the date indicator wheel and is guided in translation and in pivoting by a first pin fixedly mounted in the horological movement.