Motor vehicles – Steering by driving – Combined with manual steering
Patent
1984-07-30
1986-02-25
Tanner, Harry
Motor vehicles
Steering by driving
Combined with manual steering
192 49, B62D 1100
Patent
active
045723109
ABSTRACT:
A drive system for a tractor. The output from a hydrostatic transmission is connected to the rotatable input member of a differential, while the output shafts of the differential are each connected to a drive wheel of the tractor. A clutch interconnects one output shaft of the differential with the input member, and when the clutch is engaged, the output shafts will rotate at the same speed, acting as a solid axle. The steering column of the tractor is connected to a steerable wheel, and when the steering column is rotated through a predetermined arc of about 15.degree., a linkage interconnecting the steering column and the clutch act to disengage the clutch, so that the drive wheels are permitted to rotate at different speeds. Rotation of the steering column through a greater arc of about 80.degree. will automatically operate a brake associated with the inside wheel in the turn. At higher speeds, rotation of the steering column through a given arc will also automatically reduce the speed of the hydrostatic transmission to eliminate possible instability in a tight turn.
REFERENCES:
patent: 759559 (1904-05-01), Scott
patent: 904687 (1908-11-01), Donahoe
patent: 995291 (1911-06-01), Robinson
patent: 1318894 (1919-10-01), Mapes
patent: 1323051 (1919-11-01), Hartsough
patent: 2789646 (1957-04-01), Bobard
patent: 3190385 (1965-06-01), Allfort
patent: 3335808 (1967-08-01), Schaich
patent: 3925970 (1975-12-01), Rusco
Ransomes Inc.
Tanner Harry
LandOfFree
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