Governor for a timepiece wheel set or strike wheel set

US8588034B2 · kind B2 · utility

Assignee

• Montres Breguet S.A. · CH

Inventors

• Jan Pittet · Le Sentier, CH
• Jean-Jacques Born · Morges, CH
• Thierry Conus · Baden, CH
• Eric Goeller · Neuchâtel, CH
• Patrick Ragot · Fontainemelon, CH
• Sylvain Marechal · Bois-d'Amont, FR
• Davide Sarchi · Milano, IT
• Jerome Favre · Neuchâtel, CH

Key dates

• Filing date: Feb 9, 2012
• Grant date: Nov 19, 2013
• Expiry date: Mar 22, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G10K1/065
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A timepiece wheel governor for regulating the pivoting speed (ω) of a wheel set, about a pivot axis, including a pivoting inertia-block. It includes a spring to return this block towards this axis, and, when the wheel set pivots at a lower speed than a reference speed (ωc), this block remains confined within a first volume of revolution, and, when the wheel set pivots at a higher speed than the reference speed (ωc), this block is engaged, in one peripheral portion thereof, in a second volume contiguous with and external to the first one, this peripheral portion cooperating in this second volume with a regulator arranged to brake the wheel set and return the pivoting speed (ω) thereof to the reference speed (ωc), and to dissipate the surplus energy.