| 摘要 |
<p>SMALL STEPPING MOTOR DRIVEN WATCH A movement for a two-hand quartz analog watch driven by a Lavet-type stepping motor has a minute hand on a shalt driven by a large center wheel overlapping the energy cell. The center wheel has 60 radial slots directly engaging and driven by the stepping motor rotor through a pair of diametrically opposed driving pins disposed in adjacent radial slots of the center wheel. The driving circuit steps the rotor 180 degrees once each minute. A reduction gear drives the hour hand mounted on a center pinion.</p> |
