Overtravel control mechanism for hydrostatic transmissions

Details Overtravel control mechanism for hydrostatic transmissions Overtravel control mechanism for hydrostatic transmissions

1977-06-24

1978-08-29

Herrmann, Allan D.

Machine element or mechanism

Mechanical movements

Oscillating to oscillating

74470, 74516, F16H 2144, G05G 704

Patent

active

041095405

ABSTRACT:
An output shaft is rotatably mounted on a stationary support to selectively actuate a control valve of a hydrostatic transmission. A pair of levers are pivotally mounted on the output shaft in scissored relationship thereon and an actuating arm is rotatably mounted on the support to engage camming surfaces defined on first ends of the levers. A drive pin is secured to the output shaft to have opposite ends thereof engage bearing surfaces defined on second ends of the levers whereby swinging movements of the actuating arm in opposite directions will alternately transmit pivotal movements of the levers to the output shaft to control actuation of the control valve. The second ends of the levers are biased away from each other by a coil spring to normally engage the bearing surfaces with the drive pin.

REFERENCES:
patent: 2231609 (1941-02-01), Andersen
patent: 2777329 (1957-01-01), Banker
patent: 3055226 (1962-09-01), Keissling
patent: 3491605 (1970-01-01), MacDonald

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