US 11,927,922 B2
Coiling limitation device for a timepiece barrel
Jérôme Favre, Neuchatel (CH); Jean-Jacques Born, Morges (CH); Nakis P. Karapatis, Premier (CH); Michel Willemin, Preles (CH); and Jean-Claude Martin, Montmollin (CH)
Assigned to The Swatch Group Research and Development Ltd, Marin (CH)
Filed by The Swatch Group Research and Development Ltd, Marin (CH)
Filed on May 12, 2021, as Appl. No. 17/317,953.
Claims priority of application No. 20000362 (EP), filed on Oct. 6, 2020.
Prior Publication US 2022/0107607 A1, Apr. 7, 2022
Int. Cl. G04B 5/24 (2006.01); G04B 3/00 (2006.01); G04D 7/00 (2006.01); G04D 7/02 (2006.01); G04D 7/12 (2006.01)
CPC G04B 5/24 (2013.01) [G04B 3/006 (2013.01); G04D 7/009 (2013.01); G04D 7/02 (2013.01); G04D 7/1264 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A coiling limitation device for coiling a timepiece barrel integrated in a watch including a resonator cooperating with an escapement mechanism, said device comprising:
a motor configured to perform the coiling of said barrel, said barrel including at least one non-return notch arranged to cooperate with a sliding flange included in a spring of said barrel;
an acoustic device configured to acoustically monitor the coiling of said barrel of said watch positioned on a receptacle of said device, wherein the acoustic device is arranged to identify a reference noise which is a click noise during each start of cooperation between said sliding flange and said notch,
wherein said motor is configured to stop the coiling of said barrel at an instant of a perception of said click noise or of a repetition of said click noise.