Force measuring device for a bicycle
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United States of America Patent
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-
Jan 6, 2015
Grant Date -
Jan 17, 2013
app pub date -
Jul 12, 2012
filing date -
Jul 13, 2011
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A force measuring device for a bicycle includes a sleeve shell having a first shell-half outer wall and an inner tubular wall which are disposed between a bottom bracket shell and a spindle, a ring body disposed on the inner tubular wall and having a strain region which is configured to make a strain displacement corresponding to a treading force exerted on the spindle, a sensor holding unit defining a sensor activating zone and a hall sensing unit including a sensor which is disposed in the sensor activating zone, and a magnetic member which is displaceable with the straining movement to change a magnetic field generated thereby so as to give off a signal indicative of the magnitude of the treading force.
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