Earth working – Lawn edger – Rolling or driven cutter
Patent
1984-10-30
1987-03-31
Johnson, Richard J.
Earth working
Lawn edger
Rolling or driven cutter
56256, 30265, A01D 3484
Patent
active
046535900
ABSTRACT:
An edger for cutting a furrow between a sidewalk edge and adjacent soil includes first and second blades fixedly mounted on a horizontally extending motor driven shaft. The first blade includes a pair of elongated soil cutting arms extending oppositely from a central portion fixedly mounted on the shaft. The second blade includes a central portion fixedly mounted on the shaft and a pair of elongated arms crossed with respect to the arms of the first blade. Each of the arms of the second blade includes an outer planar portion and an intermediate inclined portion on which the outer portion is mounted so that the outer portion is in a plane substantially parallel to and removed from a plane containing the segment of the center portion which intersects the and is at right angles to the shaft axis. Each outer planar portion has a longitudinal edge including a beveled longitudinal soil cutting surface, which in combination with soil cutting surfaces of the first blade forms the furrow. Each of the outer portions of the second blade includes a longitudinally extending channel which defines a groove for lifting and turning soil cut from the furrow by the blade as the shaft turns.
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