JPS5845000B

A pinion of a reduction gear intended for use in electronic timepieces having a stepping motor, particularly wrist watches, takes the form of a cylindrical body having an axial blind hole and two teeth milled at one end of the body. The flancs of the teeth are plane parallel surfaces. The distance b...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	PEETAA BATSUHAMAN
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ELECTROMECHANICAL CLOCKS OR WATCHES ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOROLOGY LIGHTING MECHANICAL ENGINEERING MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES PHYSICS THERMAL INSULATION IN GENERAL TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS WEAPONS
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Beschreibung
Zusammenfassung:	A pinion of a reduction gear intended for use in electronic timepieces having a stepping motor, particularly wrist watches, takes the form of a cylindrical body having an axial blind hole and two teeth milled at one end of the body. The flancs of the teeth are plane parallel surfaces. The distance between the axis of rotation of the pinion and the axis of rotation of a toothed wheel of the reduction gear is slightly less than the radius of the tip-circle of the wheel, so that the two teeth of the pinion block the wheel during the resting period of the motor. If a wheel with 60 teeth is used, it may constitute the fourth wheel in an electronic watch having hands.