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Human-powered, front-wheel drive tricycle of a 2DS-1IS (2 driven, steerable-1 independent suspension) format having two steerable front wheels in a fully engineered front end, a multi-triangulated space frame and a single trailing rear wheel mounted in an independent swing-arm type suspension. A cha

Human-powered, front-wheel drive tricycle of a 2DS-1IS (2 driven, steerable-1 independent suspension) format having two steerable front wheels in a fully engineered front end, a multi-triangulated space frame and a single trailing rear wheel mounted in an independent swing-arm type suspension. A chain drive system (21+speeds) includes a crank assembly mounted on a prow ahead of the front wheels driving a transfer gear and differential to the split front axle. A transfer gear caliper/disc braking system ahead of the differential provides braking force equally distributed to both front wheels regardless of road conditions, resulting in anti-skid properties. Track/wheelbase ratios above 0.45 provide stability and excellent handling; FWD provides excellent traction. Preferably, all wheels are of the same 20″diameter. Rider is in a semi-recumbent, supine position with handlebars, having shift and braking controls, mounted beneath a rigid seat. Shoulder harness and seat belt system are provided. Faired, semi-faired and unfaired models disclosed, with full fairing including an open-top cockpit, NACA inlets and safety lighting system, capable of speeds in the 40-60 mile-per-hour range. Crank motor assist, rear wheel motor drive, and PTO for Third World usage shown.

대표청구항 ▼

A human rider powered tricycle of a 2-1 configuration comprising in operative combination: (a) a triangulated space frame; (b) a front-end assembly which includes a pair of steerable front wheels; (c) means for driving said front wheels mounted on said frame which includes gears and a crank assembly

A human rider powered tricycle of a 2-1 configuration comprising in operative combination: (a) a triangulated space frame; (b) a front-end assembly which includes a pair of steerable front wheels; (c) means for driving said front wheels mounted on said frame which includes gears and a crank assembly engageable by said human rider; (d) a seat mounted on said frame rearwardly of said front wheels, said seat being adapted to provide a semirecumbent, supine riding position for said rider, said seat having a seat portion and a rigid back portion adapted to resist thrust from the hips of said rider; (e) a single trailing rear wheel mounted on said frame; (f) means for steering said front wheels; and (g) said steering means including handlebars pivotally mounted beneath said seat to said frame.