Timepiece regulating member comprising an improved index system
AssigneeETA SA Manufacture Horlogere Suisse
InventorJulien CHRISTAN
Life of this patent
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Abstract
A regulating member (1) for a horological movement including an inertial mass, for example a balance (23), a balance spring (25), a balance bridge (22), and an index system (20) for adjusting the rate of the balance spring (25), the index system (20) including a stud-holder (31) including a first stud (34) on which the balance spring (25) is mounted. The balance bridge (33) includes a second stud on which the balance spring (25) is also mounted, the stud-holder (31) being rotatable relative to the balance bridge (33) in order to adjust the rate of the regulating member (1).
Claims14
A regulating member (1, 40) for a horological movement comprising:
- an inertial mass, including a balance (23);
- a balance spring (25);
- a balance bridge (22);
- and
- an index system (20) for adjusting the rate of the balance spring (25), the index system (20) comprising a stud-holder (31, 71) including a first stud (34) on which the balance spring (25) is mounted,
- wherein the balance bridge (33, 53) includes a second stud on which the balance spring (25) is also mounted, the stud-holder (31, 71) being rotatable relative to the balance bridge (22, 52) in order to adjust the rate of the regulating member (1, 40).
Dependencies are inferred from the claim text.