BIKE EXTENDABLE CRANK
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United States of America Patent
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-
N/A
Issued Date -
Mar 13, 2014
app pub date -
Sep 12, 2012
filing date -
Sep 12, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A bike extendable crank includes an extendable crank unit. The extendable crank unit includes an immovable crank and a movable crank. The immovable crank has a slide trough therein, a limit groove at one side thereof and a main axle hole above the limit groove. One end of the movable crank has a first pivot hole for connection of a pedal and another end of the movable crank has a second pivot hole for connection a guide axle. The movable crank is slidably received in the slide trough of the immovable crank. The guide axle inserting through the second pivot hole of the movable crank slides in the limit groove of the immovable crank.
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