Mechanical horological bearing provided with a damping
AssigneeETA SA Manufacture Horlogere Suisse
InventorsJean-Luc Helfer, Sylvain Huot-Marchand
Life of this patent
Estimating the term…
Abstract
A mechanical horological bearing (1) intended to be arranged on a mechanical timepiece movement (10), the bearing (1) including, coaxial around a common rotation axis (D), at least one internal frame (4) and at least one external frame (5) forming a running track (20), as well as a plurality of wheels (12) sliding or rolling in the running track (20), during a relative movement between the internal frame (4) and the external frame (5) that guides them and wherein at least one of the internal frame (4) and external frame (5) is a dynamic frame, at least one structural part of the bearing (1) being produced from an elastic metal material with a high damping capacity, the damping factor of which is greater than 10%, preferably greater than 30%.
Claims12
A mechanical horological bearing configured to be arranged on a mechanical timepiece movement, the bearing including, coaxial around a common rotation axis, at least one internal frame and at least one external frame-forming a running track, as well as a plurality of wheels sliding or rolling in the running track, during a relative movement between said internal frame and said external frame that guides them,
- wherein at least one of said internal frame and external frame is a dynamic frame,
- wherein at least one structural part of the bearing is produced from an elastic metal material with a high damping capacity, the damping factor of which is greater than 10%,
- wherein the bearing comprises a first damping piece configured to be positioned entirely flatly between one of said frames and a bridge of the automatic winding system of the movement, the first damping piece forming the part of the bearing produced from an elastic metal material with a high damping capacity.
Dependencies are inferred from the claim text.