Earth working – Lawn edger – Rolling or driven cutter
Patent
1976-06-17
1977-09-20
Johnson, Richard J.
Earth working
Lawn edger
Rolling or driven cutter
172 43, 30276, A01B 100, A01G 306
Patent
active
040490599
ABSTRACT:
An elongated inclined support arm is provided and a horizontal transverse shaft member is journaled from the lower end of the support arm and supports a rotary blade assembly thereon spaced to one side of the support arm. An electric motor is supported from the upper end of the support arm and includes an output shaft paralleling the support arm and extending downwardly along the latter toward the lower end thereof from which a right angle gear transmission is supported having an input shaft projecting toward the upper end of the support arm and an output shaft of which the rotary shaft member comprises a part. A drive shaft extends along the support arm and drivingly connects the motor output shaft to the transmission input shaft and an intermediate portion of the drive shaft is journaled from a corresponding intermediate portion of the support arm. An arcuate shield panel is supported from the transmission output shaft and the lower end of the support arm in position partially embracingly encircling the rotary blade assembly and opening toward the latter away from the upper end of the support arm. The shield panel is supported for oscillation about the axis of rotation of the transmission output shaft and one arch end of the shield includes a ground engaging support portion, structure being connected between the shield panel and the support arm for releasably retaining the shield panel in adjusted angularly displaced position and yieldingly biasing the shield panel from one limit of oscillation thereof toward the other limit of oscillation thereof.
REFERENCES:
patent: 2491892 (1949-12-01), Claus
patent: 2805611 (1957-09-01), Fletchall
patent: 2823597 (1958-02-01), Kelsey
patent: 2991838 (1961-07-01), Lane
patent: 3031018 (1962-04-01), Smithers
patent: 3136372 (1964-06-01), Roach
patent: 3175636 (1965-03-01), Winkelmann
patent: 3218789 (1965-11-01), Ott
patent: 3530653 (1970-09-01), Ott
Jacobson Harvey B.
Johnson Richard J.
O#Brien Clarence A.
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