Motor vehicles – Having at least one wheel both driven and steerable – Steerable wheel has exclusive axis of pivot
Patent
1996-04-26
1998-06-16
Avila, Stephen
Motor vehicles
Having at least one wheel both driven and steerable
Steerable wheel has exclusive axis of pivot
B60K 1730
Patent
active
057656592
ABSTRACT:
A dirigible drive wheel assembly includes a transmitting and steering shaft extending approximately vertically, with an axis thereof inclined, for drivably connecting an axle of a wheel to a transmission shaft, a first driving gear disposed in a lower end region of the transmitting and steering shaft, a first driven gear mounted on the axle and meshed with the first driving gear, a second driven gear disposed in an upper end region of the transmitting and steering shaft, a second driving gear mounted on the transmission shaft and meshed with the second driven gear, a second gear case for covering the second driving gear and the second driven gear, and a first gear case for covering the first driven gear and the first driving gear. A first bearing is disposed between the first gear case and a lower end of the second gear case. Through the first bearing the lower end of the second gear case is rotatably supported by the first gear case. An arm extends from the first gear case for holding an upper end of the second gear case to be rotatable about the axis. A second bearing and a third bearing are arranged at opposite sides of the first driven gear, through which the first gear case is rotatably supported by the axle. The third bearing is located below the first bearing.
REFERENCES:
patent: 4301886 (1981-11-01), Kinoshita et al.
patent: 4553624 (1985-11-01), Yoshii
patent: 4609065 (1986-09-01), Shikiya
patent: 4798260 (1989-01-01), Nakata
Aoyama Hitoshi
Ushiro Kenzo
Avila Stephen
Kubota Corporation
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