Odometer apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 10, 1992
Grant Date -
N/A
app pub date -
Jun 7, 1991
filing date -
Jun 12, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An odometer apparatus having an error elimination mechanism for eliminating an error in an indication figure. The odometer apparatus includes a set of gears rotatably supported on a first shaft for indicating each digit of a set of digits in the indication figure, a set of pinions coupled with the gears and rotatably supported on a second shaft for transmitting a rotation force to the gears, a set of bosses each arranged between two adjacent pinions and formed integrally with the pinions, each of the bosses having a substantially square section taken in a plane perpendicular to the second shaft, and a pressure member for eliminating an error in the indication figure due to a backlash between the gears and the pinions. The pressure member is engaged in a unique manner with a side surface of one of the bosses such that the side surface of the boss is pressed by the pressure member at a predetermined angle to the side surface so as to apply appropriate pressure to the boss on the second shaft to eliminate an indication figure error. Also, the odometer has a reverse rotation prevention mechanism which is formed with a spring member for preventing the gears from being rotated reversely around the first shaft.
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