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US 9,315,230 B2Granted
Hand propelled and steered bicycle
OwnerDavid D. Priceinventor
Life of this patent
Estimating the term…
Abstract
A bicycle. A front bicycle wheel and rear bicycle wheel are connected to a bicycle frame. A drive sprocket drives the rear bicycle wheel. Two hand grippable pivotally connected handles are each connected via a handle drive linkage to the drive sprocket. The pivoting of the handles in an approximately vertical plane controls the rotation of the drive sprocket and spins the rear bicycle wheel. In one preferred embodiment, the bicycle is a stationary bicycle. In another preferred embodiment the bicycle can be steered and taken on the street.
Claims11
A bicycle, comprising:
- A. a front bicycle wheel,
- B. a rear bicycle wheel,
- C. a bicycle frame,
- D. a lower drive sprocket for driving said rear bicycle wheel, said lower drive sprocket comprising a plurality of rigidly connected pedal arms,
- E. an upper drive sprocket adapted to drive said lower drive sprocket,
- F. two hand grippable handles each connected via a handle drive linkage to said upper drive sprocket, wherein said upper drive sprocket is mounted to said bicycle frame between said two hand grippable handles and said lower drive sprocket, wherein pivoting of said two hand grippable pivotally connected handles in approximately vertical planes controls the rotation of said upper drive sprocket which causes the rotation of said lower drive sprocket which causes the spinning of said rear bicycle wheel, wherein said handle drive linkage comprises:
- 1. a handle bracket connected to each one of said handles,
- 2. a rotating shaft rigidly connected to said handle bracket,
- 3. a propulsion lever rigidly connected to said rotating shaft,
- 4. a connecting drive shaft pivotally connected to said propulsion lever and connected to said upper drive sprocket,
- 5. a bicycle chain engaged with said upper sprocket and said lower drive sprocket, and
- 6. a bicycle chain engaged with said lower drive first drive sprocket and driving said rear bicycle wheel forward.
9 more elements
A bicycle, comprising:
- A. a front bicycle wheel,
- B. a rear bicycle wheel,
- C. a bicycle frame,
- D. a lower drive sprocket for driving said rear bicycle wheel, said lower drive sprocket comprising a plurality of rigidly connected pedal arms,
- E. an upper drive sprocket adapted to drive said lower drive sprocket,
- F. two hand grippable handles each connected via a handle drive linkage to said upper drive sprocket, wherein said upper drive sprocket is mounted to said bicycle frame between said two hand grippable handles and said lower drive sprocket, wherein pivoting of said two hand grippable pivotally connected handles in approximately vertical planes controls the rotation of said upper drive sprocket which causes the rotation of said lower drive sprocket which causes the spinning of said rear bicycle wheel, wherein each said handle drive linkage comprises:
- 1. a handle bracket connected to said handle,
- 2. a stationary shaft rigidly connected to said bicycle frame,
- 3. a rotating shaft rigidly connected to said handle bracket and rotating on said stationary shaft,
- 4. a drive lever rigidly connected to said rotating shaft, and
- 5. a connecting drive shaft pivotally connected to said drive lever, wherein said bicycle further comprises:
- 6. an upper sprocket mount rigidly mounted to said bicycle frame,
- 7. an upper sprocket shaft extending through said upper sprocket mount and rigidly connected to said upper sprocket,
- 8. an offset lever rigidly connected to said upper sprocket shaft, wherein said connecting drive shaft is pivotally connected to said offset lever,
- 9. a bicycle chain engaged with said upper drive sprocket and said lower drive sprocket, and
- 10. a bicycle drive chain engaged with said lower drive sprocket and driving said rear bicycle wheel forward.
13 more elements
Dependencies are inferred from the claim text.