Land vehicles – Wheeled – Occupant propelled type
Patent
1983-09-19
1986-03-25
Peters, Jr., Joseph F.
Land vehicles
Wheeled
Occupant propelled type
280278, 280281R, 280287, B62M 104, B62K 1500
Patent
active
045778795
ABSTRACT:
A bicycle having a frame provided with a chain and sprocket assembly. The pedal cranks on the front sprocket of the sprocket assembly are pivotally coupled at their outer ends to a pair of bars near to but spaced from the front ends of the bars, the rear ends of the bars being slotted to shiftably receive a pair of pins secured to the frame. A pedal is on the front end of each bar, respectively, whereby the forward power stroke caused by pedal being driven downwardly by the rider follows a semicircular path; whereas, the pedal follows almost a substantially vertical path as moves from its lower position to its upper position during the return stroke. The frame includes at least one cable which is placed under tension to connect certain components of the frame together while eliminating excess weight to enhance the speed characteristics of the bicycle.
REFERENCES:
patent: 594980 (1897-12-01), Booth et al.
patent: 3448997 (1969-06-01), Kosugi
patent: 4026571 (1977-05-01), Vereyken
patent: 4400003 (1983-08-01), de la Haye
patent: 4456276 (1984-06-01), Bortolin
Peters Jr. Joseph F.
Rice Kenneth R.
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