Land vehicles – Wheeled – Running gear
Patent
1975-02-20
1977-03-22
Song, Robert R.
Land vehicles
Wheeled
Running gear
74484R, B62D 302
Patent
active
040133010
ABSTRACT:
A vehicle steering mechanism for steering two ground engaging wheels of an industrial vehicle, comprises for each ground engaging wheel, an upright shaft rotation of which effects rotation of the associated ground engaging wheel, a track rod system connected with each upright shaft and including an arm mounted on the axle casing and rotatable about an upright axis and first and second complementary co-operating reduction drive elements of which the first element is rotatable about the same axis as the arm and upon rotational movement about that axis of the arm whilst the second element is mounted upon the corresponding upright shaft to effect rotation of that shaft upon rotational movement about its axis of the arm, and, link means 50 interconnecting the arm of each track rod system as to cause on rotation of the arms about their respective axes a differential rotation of the upright shafts and therefore, in operation, of the ground engaging wheels to an extent such that as the arms rotate from a position in which the wheels are parallel the center of rotation about which both wheels turn moves along a line parallel with and spaced from a line joining the upright shaft of each wheel, the rotation of the arms causing through the reduction drive elements an angular displacement of the wheels through a larger angle than the angle of movement of the arms.
REFERENCES:
patent: 1069810 (1913-08-01), Riemer
patent: 1461965 (1923-07-01), Bolte
patent: 1915816 (1933-06-01), Cole
patent: 2411570 (1946-11-01), Hawkins
patent: 2728586 (1955-12-01), Wildhaber
patent: 2916294 (1959-12-01), Quayle
patent: 3059944 (1962-10-01), Goodacre
patent: 3154316 (1964-10-01), Gohmann
patent: 3239025 (1966-03-01), Schreck
patent: 3534825 (1970-10-01), Reffle
patent: 3575254 (1971-04-01), Sipos
Ransomes Sims & Jefferies Limited
Silverstrim John P.
Song Robert R.
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