Driving control device of a crawler type tractor

Motor vehicles – Manually actuated controlling devices

Patent

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Details

100 67, 100336, 364424, B60K 2600

Patent

active

046992391

ABSTRACT:
A driving control device in a crawler type tractor comprises a lever capable of being operated in the forward or reverse (backward) direction and capable of being operated in the right or left direction when the lever is operated so as to move to the end of the forward or reverse direction, and a speed-stage command device capable of generating and transmitting commands for speed stages for the forward and the reverse directions. When a first sensor detects the lever operation in the forward or reverse direction; the transmission speed stages can be selected in accordance with the first sensor output and the output of the speedstage command device, and the operation amount of the lever in the right or left direction is detected by a second sensor so that steering clutches of the tractor can be controlled in accordance with the output of the second sensor.

REFERENCES:
patent: 3245493 (1966-04-01), Barrett, Jr.
patent: 3785450 (1974-01-01), Suzuli
patent: 4098367 (1978-07-01), Fleischer
patent: 4142600 (1979-03-01), Campbell
patent: 4191270 (1980-03-01), Monteith
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