Boring or penetrating the earth – With above-ground means to advance or retract boring means
Patent
1999-02-26
2000-10-03
Taylor, Dennis L.
Boring or penetrating the earth
With above-ground means to advance or retract boring means
37 2, 172 40, 172 25, 405232, E21B 306, A01B 3500
Patent
active
061259519
ABSTRACT:
A hole drilling apparatus facilitates the task of drilling holes in the ground at predetermined locations for the planting of replacement Christmas tree seedlings. The hole drilling apparatus includes a bifurcated frame having a base frame portion and a working frame portion pivotally mounted on the base frame portion. A spring mechanism operatively engages the working frame portion and the base frame portion to bias the working frame portion into a raised pivoted position. The working frame portion pivotally carries a work plate having an auger mechanism mounted thereon for pivotal movement in a vertical manner with the working frame portion to advance the auger mechanism into the ground during operation to drill a hole. The spring mechanism can be repositioned to release the biasing force exerted thereby and allow the apparatus to be converted into the compact transport position with the working frame portion lowered against the base frame portion to reduce the profile of the apparatus. The spring mechanism can then be used to brake the front tire of the apparatus to prevent the apparatus from rolling around during transport thereof. The performance of the auger mechanism is also improved with the addition of an angled cutting bit detachably mounted on the cutting edge of the auger flighting. The cutting bit is angled downwardly away from the shaft of the auger so that the outside edge of the bit will engage the ground before the edge of the bit next to the auger shaft.
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Miller Larry W.
Taylor Dennis L.
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