Earth working – With actuator adapted to lift tool for transport on wheeled... – Pivotable about longitudinal axis
Patent
1984-08-20
1986-10-21
Johnson, Richard J.
Earth working
With actuator adapted to lift tool for transport on wheeled...
Pivotable about longitudinal axis
414695, 172463, 172476, 172253, 172474, 37 2R, E02F 376, E02F 530, A01B 63106, A01B 63118
Patent
active
046180052
ABSTRACT:
An apparatus for attachment to a vehicle, preferably a bulldozer, comprises a first arm having a ripper shank extending therefrom which is pivotally attached to a second arm. A second arm is mounted to a vehicle for rotation about a horizontal axis so that when the first and second arms are in one orientation the ripper shank may be operated to move in a plane transverse to the direction of motion of the vehicle. The apparatus may be rotated to any angle such that the shank extends forwardly, or rearwardly, of the vehicle to engage objects. In the preferred embodiment, the first and second arms are pivotally mounted to a journal which extends through a mounting housing. A hydraulic cylinder engages one end of the journal at an eccentric location to cause the journal to rotate upon activation of the hydraulic cylinder.
REFERENCES:
patent: 2238094 (1941-04-01), Allin
patent: 2788199 (1957-04-01), Ankersheil
patent: 2847134 (1958-08-01), Slate
patent: 3445944 (1969-05-01), Speno
patent: 3503456 (1970-03-01), Larson
patent: 3973632 (1976-08-01), Torazzi
patent: 4063597 (1977-12-01), Day
patent: 4124080 (1978-11-01), McCanse
patent: 4466491 (1984-08-01), Tower
patent: 4478289 (1984-10-01), Enix
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