MAINSPRING

PROBLEM TO BE SOLVED: To provide a mainspring for a mechanism driven by a motor spring, especially for a timepiece, formed from a ribbon of metallic glass material. SOLUTION: The ribbon for forming the mainspring has a thickness of greater than 50 μm and is manufactured by a quenching wheel techniqu...

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Bibliographische Detailangaben
Hauptverfasser:	GYGER THOMAS, GRITTI DOMINIQUE, VON NIEDERHAEUSERN VINCENT
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOROLOGY LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES PHYSICS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a mainspring for a mechanism driven by a motor spring, especially for a timepiece, formed from a ribbon of metallic glass material. SOLUTION: The ribbon for forming the mainspring has a thickness of greater than 50 μm and is manufactured by a quenching wheel technique (called as planar flow casting) which is a technique to manufacture a metallic ribbon by quenching. Injection flow of molten metal is propelled onto a cold wheel which is rotating at high speed. The speed of the wheel, the width of an injection slot, and the injection pressure are parameters which define the width and thickness of a ribbon to be manufactured. COPYRIGHT: (C)2010,JPO&INPIT