Bicycle propulsion and speed change means
OwnerMan Taik Seulinventor
Life of this patent
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Abstract
The invention relates to a novel propulsion means and first and second speed change means for a bicycle. The propulsion means comprises lever means adapted to be pumped up and down by the operator for driving the rear wheel of a bicycle through the speed change means, a propulsion wheel, and sprocket means.
Claims10
Propulsion means for a foot-operated bicycle comprising:
- a. rear frame means comprising first and second bifurcated sections;
- b. a pair of propulsion levers pivotally connected in said second bifurcated sections of said rear frame means, said levers comprising pedals for pumping said levers up and down and first speed change means;
- c. rear wheel means and sprocket means rotatably mounted in engagement in said bifurcated section, whereby said sprocket means drives said rear wheel means;
- d. propulsion wheel means rotatably mounted in said second bifurcated section;
- said propulsion wheel means comprising engaging means to drive said sprocket means;
- e. second speed change means comprising a pair of driving lever means rotatably mounted in said second bifurcated section in engagement with said propulsion wheel means, whereby said driving lever means drive said propulsion wheel;
- f. connecting arm means between said first and second speed change means.
Speed change means for bicycle propelled by propulsion levers adapted to be operated up and down by an operator comprising, first bar means adapted to telescope into said propulsion levers, said first bar means comprising first control means for controlling the extent of telescoping of said first bar means, driving levers adapted to indirectly drive a rear wheel of a bicycle, second bar means adapted to telescope into said driving levers, said second bar means comprising second control means for controlling the extent of telescoping of said second bar means, and connecting arm means between said first and second bar means.
Dependencies are inferred from the claim text.