Rotary decoration driving device

Details Rotary decoration driving device Rotary decoration driving device

1995-09-06

1998-02-10

Roskoski, Bernard

Horology: time measuring systems or devices

Oscillating or reciprocating means

Pendulum type

368134, G04B 1702

Patent

active

057176604

ABSTRACT:
A rotary decoration driving device comprises a case, a first rotary shaft having a first end portion rotatably supported by the case and a second end portion supporting a first decoration for rotation therewith. A second rotary shaft is mounted on the first rotary shaft for rotation therewith and has an end portion supporting a second decoration for rotation therewith. A first gear is mounted on the first rotating shaft for rotation therewith, and a second gear is mounted on the second rotating shaft for rotation therewith. At least one intermediate gear is driven to undergo intermittent rotation. A transmitting device transmits the intermittent rotation of the intermediate gear to the first and second gears. A smoothing device smoothens the intermittent rotation of the intermediate gear to thereby transmit a smooth and continuous rotary motion to the first and second gears.

REFERENCES:
patent: 937792 (1909-10-01), Grivolas
patent: 3491258 (1970-01-01), Siefert
patent: 3986336 (1976-10-01), Heim
patent: 4707143 (1987-11-01), Hanya
patent: 5425005 (1995-06-01), Urabe et al.

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