Land vehicles – Wheeled – Occupant propelled type
Patent
1977-09-21
1979-12-11
Blix, Trygve M.
Land vehicles
Wheeled
Occupant propelled type
280209, B62M 100
Patent
active
041780086
ABSTRACT:
A side by side bicycle has a frame including rear forks, a transverse crank tube, an upright seat tube and an upright steering tube. A rear wheel is mounted in the rear forks, and a crankshaft is journalled in the crank tube. There is a first pair of cranked pedals on one end of the crankshaft on one side of the frame and a second pair of cranked pedals on the other end of the crankshaft on the other side of the frame. A chain and sprocket mechanism connects the crankshaft to the rear wheel. A steering spindle is journalled in the steering tube, and front forks are secured to the steering spindle and carry a front wheel. From the steering tube a duplex yoke has yoke bars that extend laterally at a variable orientation. At one end of one yoke bar there is a handle bar tube from which a handle bar post projects upwardly to carry a first set of handle bars. The other yoke bar at its opposite end carries a steering head with a steering sleeve rotatably mounted in it. A steering post extends upwardly and is axially and rotatably movable in the steering sleeve, being clamped in a selected position. A second set of handle bars is on the steering post, at the bottom of which there is a chain interconnecting the steering sleeve and the steering spindle, the chain runs passing on opposite sides of the adjacent yoke bar.
REFERENCES:
patent: Re11561 (1896-08-01), Weaver
patent: 563958 (1896-07-01), Grilli
patent: 583553 (1897-06-01), Sholl
patent: 590687 (1897-09-01), Peugnet
patent: 615231 (1898-11-01), Williams
Blix Trygve M.
Siemens Terrance L.
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