Land vehicles – Wheeled – Occupant propelled type
Patent
1986-12-29
1989-07-11
Mitchell, David M.
Land vehicles
Wheeled
Occupant propelled type
474153, B62M 900
Patent
active
048464899
ABSTRACT:
A vehicle with a pedal drive, such as a bicycle, tricycle or moped, includes a frame. A pedal drive is rotatably mounted on the frame and includes a driving gear. A wheel is rotatably mounted on the frame and a driven gear is jointly rotatable with the wheel and includes driven gear teeth. An endless toothed belt is trained about and interconnects the driving and driven gears and includes transmission gear teeth. The driven gear teeth of the driven gear are slightly reduced with respect to driven gear teeth which would correspond to the transmission gear teeth of the endless toothed belt. The frame includes a pedal shaft bearing, a saddle tube extending upwardly and slightly rearwardly from the pedal shaft bearing, a lower frontward frame tube extending upwardly at at an inclination frontwardly from the pedal shaft bearing, a steering sleeve secured to an upper end of the lower frontward frame tube, and a connecting structure extending between the steering sleeve and the saddle tube upwardly of the lower frontward frame tube. A reinforcing beam extends between respective lower regions of the saddle tube and of the lower frontward frame tube and has a first and a second end connected to the saddle tube and to the lower frontward frame tube, respectively, by respective insertion sleeves.
REFERENCES:
patent: 3260125 (1966-07-01), Dolza
patent: 4099737 (1978-07-01), Waugh
patent: 4427403 (1984-01-01), Kanamori et al.
patent: 4468211 (1984-08-01), Hoshiro et al.
patent: 4553952 (1985-11-01), Tangorra et al.
patent: 4614509 (1986-09-01), Tangorra et al.
Dougherty Ralph H.
Ernest Kleinebenne
Mitchell David M.
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