Gearbox lock mechanism
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United States of America Patent
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-
Oct 20, 2015
Grant Date -
Jul 17, 2014
app pub date -
Jan 16, 2014
filing date -
Jan 16, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
The gearbox lock mechanism for a post bole auger has a collar coupled to a lower end of a right angle gearbox, the collar rotatable upon operation of the gearbox. The collar comprises a semi-circular outer edge and a fiat side. A male-threaded nipple extends from the collar and threads onto the auger shaft. A lock bar is coupled to the gearbox and acts as a positive lock to lock the collar in place for removal of the shaft from the gearbox. The lock bar is rotatable from a locked position whereby the lock bar is aligned with and contactable with the flat side of the outer edge of the collar, to an unlocked position whereby the lock bar does not contact the flat side of the outer edge of the collar.
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