Spring, drive mechanism, device and timepiece using the spring

A barrel gear 1 as a driving mechanism of an electronic control mechanical timepiece has a mainspring 1A having a surface of elastic material coated with a film made of DLC thin film. The mainspring 1A has a superior anti-corrosion property and reduced slide resistance while sufficiently securing bo...

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Bibliographische Detailangaben
1. Verfasser:	HARA TATSUO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ELECTROMECHANICAL CLOCKS OR WATCHES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOROLOGY LIGHTING MACHINES OR ENGINES FOR LIQUIDS MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR MECHANICALLY-DRIVEN CLOCKS OR WATCHES OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PHYSICS PRODUCING MECHANICAL POWER SHOCK-ABSORBERS SPRING, WEIGHT, INERTIA OR LIKE MOTORS SPRINGS THERMAL INSULATION IN GENERAL TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	A barrel gear 1 as a driving mechanism of an electronic control mechanical timepiece has a mainspring 1A having a surface of elastic material coated with a film made of DLC thin film. The mainspring 1A has a superior anti-corrosion property and reduced slide resistance while sufficiently securing both of toughness and rigidity on account of the film, so that proportional limit thereof can be increased to increase energy accumulated in the mainspring 1A.