초록 ▼

A multi-wheeled vehicle powered via a twin treadle-acting drive train. An upright front steering assembly including a pair of tie rod coupled front wheels and steering bar-mounted gear shift and hand brake assemblies facilitate operator control of a chain-driven rear wheel. The drive train incudes l

A multi-wheeled vehicle powered via a twin treadle-acting drive train. An upright front steering assembly including a pair of tie rod coupled front wheels and steering bar-mounted gear shift and hand brake assemblies facilitate operator control of a chain-driven rear wheel. The drive train incudes left and right treadles which, via an interconnected chain and crossover sprockets, drive a rear wheel housing supported stub shaft having a pair of end-mounted, over-running sprocketed clutches, a drive sprocket and a non-reversing clutch. A derailleur-controlled drive chain transfers power from the drive sprocket to the rear wheel.

대표청구항 ▼

A wheeled vehicle comprising: (a) a tubular T-shaped chassis having a longitudinal member and a forward end mounted cross member; (b) a pair of rotatively mounted front wheels; (c) steering means including a handle bar, a vertically telescoping steering column and steering shaft coupled with tie rod

A wheeled vehicle comprising: (a) a tubular T-shaped chassis having a longitudinal member and a forward end mounted cross member; (b) a pair of rotatively mounted front wheels; (c) steering means including a handle bar, a vertically telescoping steering column and steering shaft coupled with tie rod means coupled to a pair of 7-shaped axles rotatively mounted to said cross member and supporting said front wheels in toed-in relation to said chassis, said steering column rotatively supported from said chassis via a plurality of strut members coupled therebetween; (d) first and second platformed treadles including stop members contacting said longitudinal chassis member and pivotally coupled at a forward end to said chassis to arcuately rise and fall with operator applied foot pressure; (e) a housing having side, top and front walls mounted to the rear end of said chassis; (f) a multi-sprocketed rear wheel rotatively supported from and substantially surrounded by said housing; (g) a counter-shaft rotatively mounted to said housing in overlying relation to said treadles and including a pair of opposed end-mounted sprockets, an intermediate drive sprocket and non reversing clutch means, each end sprocket rotating about a unidirectional over-running clutch means and said non reversing means including a counter rotatively mounted clutch means for preventing the reverse rotation of said counter shaft; (h) first and second crossover sprockets rotatively mounted to said housing; (i) a first drive chain including a pair of 90 degree transition members having opposite ends coupled to the rear ends of said first and second treadles and trained about said end sprocketsand said crossover sprockets, whereby an alternate rising and falling of said treadles rotates said drive sprocket; (j) a second endless drive chain trained about said drive sprocket and one of the rear wheel sprockets; (k) cable-actuated means mounted to said housing for controllably braking said rear wheel; and (l) cable-actuated means including a rotatively mounted cam member cooperatively mounted relative to a spring-biased drive chain displacement member mounted to said housing for laterally selectively shifting said second drive chain about a selected one of said rear wheel sprockets.