US 12,105,474 B2
Oscillator for a timepiece movement and timepiece comprising such an oscillator
Christian Châtelain, Tramelan (CH); and Sébastien Gigon, Thiébouhans (FR)
Assigned to SOPROD SA, Sion (CH)
Appl. No. 17/618,538
Filed by Soprod SA, Sion (CH)
PCT Filed Jun. 22, 2020, PCT No. PCT/IB2020/055879
§ 371(c)(1), (2) Date Dec. 13, 2021,
PCT Pub. No. WO2021/001722, PCT Pub. Date Jan. 7, 2021.
Claims priority of application No. 871/19 (CH), filed on Jul. 2, 2019.
Prior Publication US 2022/0413437 A1, Dec. 29, 2022
Int. Cl. G04B 17/06 (2006.01); G04B 17/34 (2006.01); G04B 27/00 (2006.01)
CPC G04B 17/063 (2013.01) [G04B 17/34 (2013.01); G04B 27/004 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A balance-hairspring oscillator comprising:
a balance shaft intended to be pivotably mounted on a frame of a timepiece;
a balance secured to the balance shaft;
a hairspring comprising an inner end secured to the balance shaft and an outer end intended to be connected to a connecting member to said frame, and
a transmission member arranged to interact with an escapement
wherein the transmission member and the hairspring are arranged on the same side of the balance, and
wherein the transmission member is in the form of a double disk comprising a peg that is intended to cooperate with an escapement anchor.