Gearbox Lock Mechanism

The mechanism of claim , the block stop substantially parallel to the flat side of the outer edge of the collar when the collar is locked, the block stop spaced apart from the flat side of the outer edge of the collar by a distance.

A gearbox lock mechanism for a post hole digger, the mechanism comprising:

• a collar extending beneath the gearbox, the collar rigidly affixed to a nipple that releasably affixes a shaft of the post hole digger to the gearbox, the collar rotatable upon operation of the gearbox, the collar comprising a semi-circular outer edge, the outer edge primarily semicircular and the outer edge comprising a flat side;
• a lock bar support rigidly coupled to an outer body of the gearbox, the outer body of the gearbox not rotatable upon operation of the gearbox;
• a lock bar rotatably coupled to the lock bar support via a fastener, the lock bar extending downwardly from the lock bar support when the lock bar is in an unlocked position such that the post hole digger is operational, the lock bar positioned adjacent to and contactable with the flat side of the outer edge of the collar when the lock bar is in a locked position, thus preventing the shaft of the post hole digger from rotation.

A gearbox lock mechanism for a post hole digger, the mechanism comprising:

• a collar coupled with a gearbox shaft and rotatable with the gearbox shaft, the collar comprising a flat side on its outer edge;
• a rotatable lock bar engagable with the fiat side of the collar, the lock bar adjacent to and contacting the flat side when the lock bar is in a locked position, the lock bar preventing rotation of the gearbox shaft when the lock bar is in the locked position.