US 12,468,258 B2
Timepiece regulating member with a balance spring provided with means for gravity compensation
Gianni Di Domenico, Neuchâtel (CH); Baptiste Hinaux, Lausanne (CH); Mohammad Hussein Kahrobaiyan, Boudevilliers (CH); Jean-Luc Helfer, Le Landeron (CH); and Pascal Winkler, St-Blaise (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 Jun. 29, 2023, as Appl. No. 18/344,236.
Claims priority of application No. 22186305 (EP), filed on Jul. 21, 2022.
Prior Publication US 2024/0027965 A1, Jan. 25, 2024
Int. Cl. G04B 17/06 (2006.01); G04B 17/04 (2006.01)
CPC G04B 17/06 (2013.01) [G04B 17/045 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A regulating member for a horological movement comprising an oscillating mass, a balance spring comprising a flexible strip coiled on itself in several turns, the strip having a predefined rigidity to enable the oscillating mass to perform a rotary oscillatory movement, the strip comprising an outer end,
wherein the regulating member comprises a resilient device for compensating the direction of the gravity with respect to the regulating member, the resilient device being configured to adapt its stiffness according to gravity in order to compensate for the effect of gravity on the regulating member, the resilient device comprising a resilient element connecting the outer end to a first non-movable support with respect to the horological movement, as well as prestressing means for applying a variable force or torque on the resilient element according to the direction of gravity with respect to the regulating member.