초록 ▼

The present invention entails a three-wheel vehicle having a main frame structure, a front wheel, a pair of laterally spaced steerable rear wheels, and a seat disposed intermediately between said front and rear wheels. A jack shaft is rotatively mounted rearwardly of the front wheel and is driven by

The present invention entails a three-wheel vehicle having a main frame structure, a front wheel, a pair of laterally spaced steerable rear wheels, and a seat disposed intermediately between said front and rear wheels. A jack shaft is rotatively mounted rearwardly of the front wheel and is driven by a pedal assembly having a drive shaft rotatively journaled transversely about the axis of the front wheel. Operatively associated with the jack shaft is a multi-speed chain drive that is drivingly interconnected between the pedal assembly and the jack shaft. The jack shaft further includes an output end or side that drivingly connects to the front wheel. Consequently, it is appreciated that torque is transferred from the pedals through a multi-speed chain drive to the rearwardly disposed jack shaft and the torque associated with the output side of the jack shaft is transferred back to the front wheel for driving the same.

대표청구항 ▼

A three-wheel vehicle comprising: a main frame structure; a front wheel rotatively mounted about a transverse axis to the front of said frame structure; a pair of laterally spaced rear steerable wheels mounted to the rear of said frame structure; seat means mounted to said frame structure intermedia

A three-wheel vehicle comprising: a main frame structure; a front wheel rotatively mounted about a transverse axis to the front of said frame structure; a pair of laterally spaced rear steerable wheels mounted to the rear of said frame structure; seat means mounted to said frame structure intermediately between said front and rear wheels; steering means operatively associated with said rear wheels for imparting a steering movement thereto such that said three-wheel vehicle may be steered by said rear wheels; foot pedal means disposed about opposite sides of front wheel and including a drive shaft rotatively journaled along a transverse axis of said front wheel and rotatable independently of said front wheel; a rotatively mounted jack shaft disposed between said front wheel and said rear wheels and including an input side and an output side; first drive means operatively interconnected between said pedal means and said input side of said jack shaft for driving said jack shaft in response to said pedal means being rotatively turned about the transverse axis of said front wheel; multi-speed gear means associated with said jack shaft for driving the same at a selected speed relative to the rotational speed of said pedal means; and second drive means operatively interconnected between said output side of said jack shaft and said front wheel for driving said front wheel in response to the output side of said jack shaft being driven.