BALANCE SPRING FOR A TIMEPIECE RESONATOR

The present invention relates to a balance spring for a timepiece resonator, comprising a wound blade having a variable stiffness and/or a variable pitch. The variation in stiffness and/or pitch is such that the rate due to the eccentric development of the balance spring in the horizontal position d...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PERSEGUERS, Sébastien, CHABLOZ, David
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	HOROLOGY MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES PHYSICS TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
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Beschreibung
Zusammenfassung:	The present invention relates to a balance spring for a timepiece resonator, comprising a wound blade having a variable stiffness and/or a variable pitch. The variation in stiffness and/or pitch is such that the rate due to the eccentric development of the balance spring in the horizontal position decreases across the whole range of oscillation amplitudes between 130° and 220°. La présente invention concerne un spiral pour résonateur horloger comprenant une lame enroulée présentant une rigidité variable et/ou un pas variable. La variation de rigidité et/ou de pas est telle que la marche due au développement excentrique du spiral en position horizontale décroît dans toute la plage d'amplitudes d'oscillation comprise entre 130° et 220°.