US 11,860,582 B2
Winding device for automatic watch
Michel Willemin, Preles (CH); Jérôme Favre, Neuchatel (CH); and Nicolas Livat, Cressier (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 3, 2021, as Appl. No. 17/246,891.
Claims priority of application No. 20201698 (EP), filed on Oct. 14, 2020.
Prior Publication US 2022/0113682 A1, Apr. 14, 2022
Int. Cl. G04C 1/06 (2006.01); G04C 1/12 (2006.01); G04D 7/00 (2006.01)
CPC G04C 1/062 (2013.01) [G04C 1/12 (2013.01); G04D 7/009 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A winding device for an automatic watch with mobile oscillating mass, including comprising:
at least one watch holder arranged to carry at least one automatic watch; and
motorisation means for driving said at least one watch holder, wherein
said device includes a multimeter which is arranged to measure a variation in a resistive torque based on a change of a winding angle which is opposed to said motorisation means by a mobile equipment consisting of,
all said watch holders driven by said motorisation means, and
all the watches that all said watch holders driven by said motorisation means carry, depending on a degree of winding of said watches,
said multimeter includes
speed measuring means to determine a speed and/or a variation in the speed of said motorisation means,
torque measuring means to determine a value of a torque and/or a variation in the torque at least at one said watch holder, and/or
a current meter to determine a value of a current and/or a variation in the current of at least at one electric motor that said motorisation means include.