Harvesters – Motorized harvester – Including cutter yieldably mounted on its drive means
Patent
1991-07-12
1992-04-28
Bagnell, David J.
Harvesters
Motorized harvester
Including cutter yieldably mounted on its drive means
302754, 30276, 56DIG9, A01G 306
Patent
active
051076659
ABSTRACT:
A spatial guide adapted to be affixed to a gasoline-powered line trimmer (also called a string trimmer) to serve as a stand-off device, such that the cutting head of the trimmer cannot come any closer to an obstacle than is permitted by the length of a rigid arm. A rigid block of material having a central bore is configured to be attached to the trimmer's tube near the cutting head. The rigid arm attaches to the block of material, preferably by use of the same fasteners that hold the block to the tube. A slot in the arm permits selective adjustment of the distance by which the arm protrudes in a cantilevered manner from the block and hence from the tube. A large roller is mounted at the distal end of the rigid arm and serves to foster sliding and/or rolling movement between the arm and any obstacle adjacent which vegetation is to be cut--as the cutting head is manually moved past the obstacle. The preferred roller has a combination of diameter and thickness that will preclude it from passing between the openings in a conventional chain-link fence. A suitable size is a diameter of about two inches and a thickness in excess of two inches.
REFERENCES:
patent: 4658506 (1987-04-01), Nilsson
patent: 4756084 (1988-07-01), Morita
patent: 4894916 (1990-01-01), Nimz et al.
patent: 5048187 (1991-09-01), Ryan
Bagnell David J.
McHugh Charles W.
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