Mechanism for self-wind watches

In an automatic winding mechanism for a wristwatch, the motion of the oscillating off-center rotor is transmitted to a ratchet wheel which drives a planetary reduction gear winding the mainspring, by means of an improved single piece rocking arm. The rocking arm is made from a single stamping and in...

Full description

Saved in:
Bibliographic Details
Main Author WUTHRICH, PAUL
Format Patent
LanguageEnglish
Published 20.11.1979
Subjects
HOROLOGY
MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL
MECHANICALLY-DRIVEN CLOCKS OR WATCHES
PHYSICS
TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
Online AccessGet full text

Cover

More Information
Summary:In an automatic winding mechanism for a wristwatch, the motion of the oscillating off-center rotor is transmitted to a ratchet wheel which drives a planetary reduction gear winding the mainspring, by means of an improved single piece rocking arm. The rocking arm is made from a single stamping and includes spring loaded pawls, tabs to support it in place, and a spring clip retaining the off-center rotor in its bushing.
Bibliography:Application Number: US19780968956