Electronic clock movement comprising an analog display of several items of information
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jan 23, 2018
Issued Date -
N/A
app pub date -
Mar 19, 2015
filing date -
Apr 3, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
An electronic clock mechanism includes an analog display device including a ring of dates and a stopwatch hand associated with a graduation of a small counter. The ring and hand are driven by a same electric motor via a permanent gear train, the hand being mounted on a wheel of the permanent gear train, the wheel arranged between a motor pinion and a movable element including a date driving wheel. The ring and date driving wheel respectively include two sets of teeth forming a permanent gear having a relatively large clearance to define a dead angle region for the date driving wheel as the ring is positioned by a jumper. The dead angle region is used to drive the stopwatch hand independently of the ring. The permanent gear train is arranged such that torque for positioning the rotor creates for the date driving wheel a blocking torque for shock-resistance.
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