Stud holder for a clock regulating member equipped with means for adjusting speed and / or isochronism

Abstract

To provide a stud-holder which is compatible with conventional balance springs, and which can provide the advantages of accuracy in adjusting the rate and / or isochronism as a balance spring with adjustment means.SOLUTION: In a stud-holder for a regulating member 150 of a horological movement, the regulating member 150 includes an inertial mass, for example a balance 41, a balance spring 44 including a strip wound around itself in several turns, and a balance cock 42, the stud-holder 120 includes a main body 2 intended to be mounted on the balance cock 42 and a sub-body 3 arranged at a distance from the main body 2 and configured to suspend the balance spring 44, the regulating member 150 includes a flexible element connecting the main body 2 to the sub-body 3, and the stud-holder 120 includes prestressing means for applying a variable force or torque to the flexible element in order to adjust the rate and / or isochronism slope of the regulating member 150.SELECTED DRAWING: Figure 14

Claims

1. A stud holder for a regulating member (150) of a watch movement, the regulating member (150) comprising an inertial mass, a hairspring (17, 44) having a strip wound several turns around it, and a balance bridge (42), wherein the stud holder (1, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140) is intended to be attached to the balance bridge (42), and is positioned at a distance from the main body (2), and the hairspring (17 A stud holder comprising a sub-body (3) configured to suspend the outer ends of the main body (2) and the sub-body (3), wherein the speed regulator member comprises a flexible element (5), the main body (2) and the sub-body (3) are connected only by the flexible element (5), and the stud holders (1, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140) comprises prestressing means (6) for applying a variable force or torque to the flexible element (5) in order to adjust the speed and / or isochronic gradient of the speed regulator member (150).

2. The stud holder according to claim 1, wherein the inertial mass is the temperature (41).

3. The stud holder according to claim 1, wherein the flexible element (5) comprises two intersecting flexible blades (13, 14) that connect the main body (2) to the sub-body (3).

4. The stud holder according to claim 3, wherein the two intersecting flexible blades (14) are connected to each other at their intersection (15).

5. The stud holder according to claim 1, wherein the flexible element (5) comprises two non-intersecting flexible blades (16) connecting the main body (2) to the sub-body (3).

6. The stud holder according to claim 1, wherein the flexible element (5) comprises a flexible neck (8) that connects the main body (2) to the sub-body (3).

7. The stud holder according to claim 1, wherein the flexible element (5) comprises a flexible blade (4) that connects the main body (2) to the sub-body (3).

8. The stud holder according to claim 1, wherein the flexible element (5) comprises two substantially parallel flexible blades (9) that connect the main body (2) to the sub-body (3) to form translational steps.

9. The stud holder according to claim 1, wherein the main body (2) comprises an arm (12) to which the flexible element (5) is assembled.

10. The stud holder according to claim 1, wherein the flexible element (5) is harder than the strip.

11. The stud holder according to claim 1, wherein the torque or force is continuously adjustable by the prestressing means (6).

12. The stud holder according to claim 1, wherein the prestressing means comprises a movable lever (19) positioned to support the sub-body (3).

13. The stud holder according to claim 1, wherein the prestressing means (6) comprises a spring (24) connected to the sub-body (3), and a first movable body (25, 34) for extending or compressing the spring (24).

14. The stud holder according to claim 13, wherein the spring comprises a second flexible blade (28).

15. The stud holder according to claim 13, wherein the spring comprises a plurality of third flexible blades (33) that connect the main body (2) to the first movable body (34).

16. The stud holder according to claim 15, wherein the spring comprises a plurality of fourth flexible blades (36) that connect the first movable body (34) to the second movable body (37) of the prestressing means (6).

17. The stud holder according to claim 1, wherein the prestressing means (6) comprises a plurality of rigid sections (51, 52) connected by a flexible neck (52, 54) or a flexible blade (101).

18. A speed regulating member for a watch movement, wherein the speed regulating member (150) comprises an inertial mass, a hairspring (44) having a strip wound several turns around it, a balance bridge (42), and a stud holder (120) according to any one of claims 1 to 17.

19. A clock movement comprising the speed regulating member (150) described in claim 18.

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