Semi-recumbent

Land vehicles – Wheeled – Occupant propelled type

Patent

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Details

2802811, 2802881, B62K 302

Patent

active

052616860

ABSTRACT:
A two wheel bicycle on which the rider sits elevated above and slightly forward of the rear wheel on a high-back seat. The seat is supported by the rearward end of a multiple angled main tube. The position of the pedal crank assembly is forward and upward of the pedal crank position of conventional bicycles and downward and rearward of that normally associated with fully recumbent bicycles relative to the seat. The rider steers by way of long upwardly curved handlebars affixed to an elongated multiple angled steering stem originating in a front steering head tube assembly and extending rearward in general parallel alignment with the multiple angled main tube. The steering stem extends upward and rearward terminating under the area of the rider's upper legs. The multiple angled main tube attaches at a forward portion thereof to the head tube and extends rearward therefrom in a generally horizontal plane for a distance prior to turning relatively sharply upward near the rear wheel, and continues extending upward and rearward at an approximately 45 degree angle. The main tube is fitted with an inner member telescopically slidable, and the slidable member being positioned above the rear wheel supports the seat in a adjustable manner. The elongated steering stem is positioned above the main tube and follows the approximate angled path as the main tube and thereby the bicycle is provided with a low step-over height for the rider to straddle and mount or dismount the bike.

REFERENCES:
patent: 640680 (1900-01-01), Merrow
patent: 709718 (1902-09-01), Monahan
patent: 1056492 (1913-03-01), Bilsten
patent: 2482472 (1949-09-01), Fried
patent: 4129317 (1978-12-01), Bell
patent: 4336664 (1982-06-01), Turner et al.
patent: 4432561 (1984-02-01), Feikema et al.
patent: 4453730 (1984-06-01), Klose
patent: 4502705 (1985-03-01), Weaver
patent: 4592563 (1986-06-01), Dean et al.
patent: 4618160 (1986-10-01), McElfresh
patent: 4659098 (1987-04-01), Jacobson
patent: 4878684 (1989-11-01), Lemle
patent: 4925203 (1990-05-01), Buckler
Add; Associate Dynamics Inc., 15510 Wright Brothers Dr., Addison.

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