Harvesters – Motorized harvester – Having fluid-pressure or stored-energy motor
Patent
1982-12-08
1985-01-29
Mancene, Gene
Harvesters
Motorized harvester
Having fluid-pressure or stored-energy motor
56 104, 56 158, 56 136, 91422, 91437, A01D 3528
Patent
active
044957548
ABSTRACT:
A hydraulic wing mower includes a central section (A) to which a left wing section (B) and a right wing section (C) are pivotally connected. A first hydraulic cylinder (100) is operatively connected between the central section and left wing section for selecting its angular position and a second hydraulic cylinder (100') is operatively connected between the central section and the right wing section for selecting its angular position. A hydraulic circuit provides hydraulic fluid under pressure from a reservoir (120) to a wing angular position control valve (170). The wing angular position control valve selectively directs hydraulic fluid under pressure to the first and second cylinders to select an angular orientation for the left and right wings. A pressure relief valve (180) is selectively connected between the hydraulic cylinders and the reservoir. When an upward force occurs on one or both of the wing members, e.g. when a wing member engages an upward incline or the central section moves into a depression, the hydraulic fluid flows from the cylinders through the relief valve to the reservoir. This allows one or both wing sections to yield or breakaway under an upward force. In the preferred embodiment, the wings do not yield or breakaway under a downward force such that they may be cantilevered over a ravine or the like.
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Terrain King Advertisement of The Hydro-15, published unknown.
Terrain King Advertisement of Versa Mower, published unknown.
Terrain King Advetisement of The TK-15, published unknown.
Woods Data Sheet--Woods Metal H-S 105/106 (states as prior art in parent case) 3-1982.
Mancene Gene
Tarnoff David I.
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