Horology: time measuring systems or devices – Chronological – With manually actuated display
Patent
1990-10-31
1994-12-27
Miska, Vit W.
Horology: time measuring systems or devices
Chronological
With manually actuated display
368 76, 368185, 368190, G04B 1930, G04B 1900, G04B 2702
Patent
active
053771680
ABSTRACT:
A timepiece having a mode displaying function includes an external operating member that is rotatable by a user. A sliding pinion rotatable by the external operating member rotates a transmitting gear. A correction transmitting wheel is rotatable by the transmitting gear. A motion control gear is fixed to the correction transmitting wheel. A motion control spring member having a motion control part contacts with a respective motion control face of the teeth of the motion control gear to regulate the rotation of the correction transmitting wheel during the rotation of the motion control gear. A mode displaying plate is rotatable by the correction transmitting wheel and displays the modes of the timepiece. The mode displaying plate is fixed to a display gear which has a plurality of teeth. A spring member has an urging surface for contacting with a respective motion control face of the teeth of the display gear. Thus, during rotation of the display gear, the urging surface of the spring member regulates the rotation of the mode displaying plate so that the modes printed on the display plate are consistently viewable at the center of a display window on the dial of the inventive timepiece.
REFERENCES:
patent: 3733803 (1973-05-01), Hiraga et al.
patent: 3733810 (1973-05-01), Girard
patent: 3733810 (1973-05-01), Girard
patent: 4019037 (1977-04-01), Monna
patent: 4444511 (1984-04-01), Ogihara et al.
patent: 4451159 (1984-05-01), Tanaka
patent: 4677344 (1987-07-01), Inoue
patent: 4726687 (1988-02-01), Gander
Patent Abstracts of Japan, vol. 6, No. 38 (P-105) (916) Mar. 9, 1982.
Adams Bruce L.
Miska Vit W.
Seiko Instruments Inc.
Wilks Van C.
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