Drive arrangement for three wheeled vehicles
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorHiromitsu Watanabe
Life of this patent
Estimating the term…
Abstract
A three wheeled shaft driven off the road vehicle having an improved driving arrangement. The driving arrangement includes an overload release coupling that is positioned between the driven gear and a drive shaft that drives the rear wheels so as to minimize the complexity of the transmission and to protect the engine and drive. A trailing arm rear suspension is employed that has widely spaced bearings for rotatably journaling the rear axle to minimize unit loadings. An arrangement is also disclosed for facilitating axial positioning of the driven gear on the output shaft without necessitating the use of shims.
Claims33
In a transmission for a vehicle or the like comprising frame means, at least one front wheel dirigibly carried by said frame means, a pair of rear wheels carried by said frame means, an engine carried by said frame means, and a transmission carried by said frame means, the improvement comprising said engine being positioned with its output shaft extending parallel to the axis of rotation of said rear wheels, said transmission having a primary shaft and a secondary shaft each carrying intermeshing gears for changing the speed ratio between said primary and said secondary shafts, said transmission shafts having their rotational axes extending parallel to the rotational axis of said rear wheels, means for driving said primary shaft from said engine output shaft, a drive shaft for driving said rear wheels and extending generally perpendicular to the axis of rotation of said rear wheels, means for driving said drive shaft from said transmission secondary shaft and an overload release device in the driving connection between said transmission secondary shaft and said rear wheels and remotely from the transmission secondary shaft.
Dependencies are inferred from the claim text.