Steerable driving axle

Motor vehicles – Having at least one wheel both driven and steerable – Steerable wheel has exclusive axis of pivot

Patent

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Details

280691, 280694, B60G 1906, B62D 706

Patent

active

047337443

ABSTRACT:
A steerable driving axle assembly is provided with a centrally located differential assembly which is fixed to a vehicle frame member and includes a pair of axle drive shafts having inner ends coupled to output shafts of the differential assembly. Each of the axle drive shafts is surrounded by a separate axle tube which has an inner end pivotally attached to the housing of the differential assembly. Each of the axle drive shafts has an outer end coupled to drive a separate rotatable wheel member which is rotatably supported by a mounting portion of a wheel assembly. In accordance with the present invention, the outer end of each axle tube is pivotally coupled to the mounting portion of the wheel assembly by a king pin mounting arrangement. Also, each of the axle tubes is independently suspended by a separate leaf spring which is coupled to the axle tube by a unique spring mounting pad which permits pivotal movement of the leaf spring relative to the axle tube about a generally horizontal spring axis generally perpendicular to the longitudinal axis of the tube. Further, to reduce the overall size of the differential asembly, the present invention includes a planatary gear reduction assembly in each wheel assembly.

REFERENCES:
patent: 1416797 (1922-05-01), Dechamps
patent: 1575118 (1926-03-01), Lipcot
patent: 1596321 (1926-08-01), Spayd
patent: 1797578 (1931-03-01), Hoffman
patent: 2796943 (1953-12-01), Rolt et al.
patent: 3155186 (1964-11-01), Cadnus et al.
patent: 3602523 (1969-05-01), Poulos
patent: 3765698 (1973-10-01), Burrell

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