Patent · US Active

Micromechanical part with an opening for fastening to a spindle

US7926355B2 · kind B2 · utility

8Cited by

3References

20Claims

0Family size

Assignee

ROLEX SA · CH

Inventors

Sebastien Bannier · Sonvilier, CH
David Passannante · Fribourg, CH

Key dates

Filing date	Mar 30, 2009
Grant date	Apr 19, 2011
Priority date	—
Expiry date	Oct 29, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49465
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

This micromechanical part is intended to be fastened to a spindle and has at least one opening (10, 20, 30) whose edges comprise an alternating arrangement of rigid areas (11) and elastic areas (12, 22, 32). It is possible for those ends (13) of the rigid areas (11) closest to the center C of the opening (10, 20, 30) to be connected by a first circle C1 having a diameter greater than the diameter of a second circle C2 connecting those ends (15, 25, 27) of the elastic areas (12, 22, 32) closest to the center of the opening. In this micromechanical part, each rigid area (11) is formed by a convex portion projecting into the opening (10, 20, 30).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.