Rocking motor for low cost quartz watch

Details Rocking motor for low cost quartz watch Rocking motor for low cost quartz watch

1977-03-21

1978-12-12

Schaefer, Robert K.

58 2, 58 59, G04C 300

Patent

active

041289927

ABSTRACT:
A rocking motor for driving an indexing element in a quartz controlled analog wristwatch is impulsed once per minute. The indexing element and the indexed "center" wheel are carried between parallel shunt plates holding the permanent magnet. The driving element is deflected by a pulse from its rest position to tension a spring, and the minute wheel is indexed when the driving element is returned by the reset spring.

REFERENCES:
patent: 3775963 (1973-12-01), Clapham
patent: 3902310 (1975-09-01), Kreidler
patent: 3999369 (1976-12-01), DE Valroger et al.

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