Patent ID: 6885614
Filing Date: 2005-04-26
Classification: G04B

Abstract:
1. Device for displaying the phases of the moon, particularly in a timepiece, including a dial provided with a circular aperture, a mobile indicator in the shape of a plate, moving behind the dial and having a substantially S-shaped line of separation between a dark zone and a light zone which can be seen through the aperture, said indicator having a pivoting axis which passes through a centre of symmetry of the line of separation, an entry element rotatably mounted on a plate and making a determined number of revolutions per lunation, and a transmission mechanism assuring a kinematic connection between the entry element and the indicator, wherein said transmission mechanism includes a rotating support making two revolutions per lunation and whose rotational axis is off-centre with respect to the aperture, wherein said indicator is mounted so as to pivot at one point of said rotating support whose trajectory passes through the centre of the aperture, and wherein said kinematic connection is arranged such that said indicator makes one revolution per lunation with respect to the dial.