Watch winding crown assembly

Details Watch winding crown assembly Watch winding crown assembly

1975-07-09

1976-08-31

Hix, L. T.

58 63, 58 855, 58 88B, A63F 118

Patent

active

039771784

ABSTRACT:
In a watch winding crown assembly of the type with a push-button axially displaceable relative to a crown body, the crown body has an integral cylindrical shank slidably and rotatably mounted in a pendant tube, with an interposed annular seal. The push button has a cylindrical head and shank guided in corresponding cylindrical parts of a through bore in the crown head and in its skirt, this skirt terminating with an inner shoulder in which part of the shank is keyed. A spring in the skirt acts against this shoulder and, in addition to outwardly biasing the push-button, compresses a further annular seal between the push-button and the skirt. The outer position of the push-button is defined by a widened terminal part of its shank abutting against said shoulder, this terminal part being secured to a winding stem.

REFERENCES:
patent: 3357173 (1967-12-01), Wissen
patent: 3389550 (1968-06-01), Piquerez
patent: 3535869 (1970-10-01), Zellveger
patent: 3621649 (1971-11-01), Vullan et al.

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