US 11,681,259 B2
Resonant member for a striking mechanism of a watch or of a music box
Laurane Chevallier, Les Rousses (FR); and Julien Peter, Gollion (CH)
Assigned to Blancpain SA, Le Brassus (CH)
Filed by Blancpain SA, Le Brassus (CH)
Filed on Nov. 4, 2019, as Appl. No. 16/672,623.
Claims priority of application No. 18207832 (EP), filed on Nov. 22, 2018.
Prior Publication US 2020/0166893 A1, May 28, 2020
Int. Cl. G04B 21/08 (2006.01); G04B 21/06 (2006.01)
CPC G04B 21/08 (2013.01) [G04B 21/06 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A resonant member for a striking mechanism of a watch or of a music box, comprising at least one resonant part arranged to vibrate and resonate once activated, wherein at least the resonant part is made from an alloy of tungsten or tantalum or rhodium or hafnium with more than 51% by weight of tungsten or tantalum or rhodium or hafnium in the alloy,
wherein the resonant part includes at least four gongs of circular shape having different lengths in order to each generate a specific different note once activated for a chiming mechanism,
wherein
a first gong and a second gong are capable of being placed one atop the other inside a watch case,
a third gong and a fourth gong are capable of being placed one atop the other inside a watch case,
the third gong is intended to be coaxially mounted inwardly and in the same plane as the first gong, and
the fourth gong is intended to be coaxially mounted inwardly and in the same plane as the second gong.