Residual wound quantity display mechanism of timepiece and timepiece with residual wound quantity display mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 10, 2009
Grant Date -
Aug 28, 2008
app pub date -
Feb 6, 2008
filing date -
Feb 9, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
To provide a residual wound quantity display mechanism of a timepiece, in which it is possible to change a way of a display without changing a basic structure, and a timepiece with the mechanism concerned. A residual wound quantity display mechanism of a mechanical timepiece has an output gearwheel rotating in compliance with a change in a residual wound quantity of a mainspring; a drive lever possessing monolithically a fan-shaped gearwheel part meshing with the output gearwheel, and an arm part extending from a rotation center of the fan-shaped gearwheel part in a direction different from a fan-shaped portion of the fan-shaped gearwheel part; a display member possessing a drive gearwheel part rotatably supported to a tip part of the arm part of the drive lever, and a display arbor formed monolithically in the drive gearwheel part in a site separated from a rotation center of the drive gearwheel part; and a fixation gearwheel possessing a fixation tooth part with which a tooth part of the drive gearwheel part of the display member meshes. Typically the fixation gearwheel adopts a form of the internally-toothed gearwheel.
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