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US 8,926,170 B2Granted
Timepiece anti-shock system
AssigneeThe Swatch Group Research and Development Ltd
InventorsJean-Luc Helfer, Yves Winkler, Michel Willemin
Life of this patent
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Abstract
A shock absorber bearing for an arbor of a timepiece wheel set. The arbor includes a pivot-shank extended by a pivot. The bearing includes a support including a recess for receiving a pivot system into which the pivot-shank is inserted. The pivot system is arranged to absorb, at least in part, shocks experienced by the timepiece wheel set and is formed of a single piece made of an at least partially amorphous metal alloy.
Claims4
A shock absorber bearing for an arbour of a timepiece wheel set,
- said arbour comprising a pivot-shank extended by a pivot;
- said bearing comprising a support including a recess for receiving a suspended pivot system into which the pivot-shank is inserted;
- wherein said pivot system is arranged to absorb, at least in part, shocks experienced by the timepiece wheel set, and the pivot system is formed of a single piece made of totally amorphous metal alloy;
- and wherein said pivot system is a disc including an annular portion, a central portion, and elastic arms connecting the central portion to the annular portion, the central portion comprising a recess so that the pivot which is engaged therein can pivot freely therein.
1 more element
Dependencies are inferred from the claim text.