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US 8,297,636 B2Granted
Manpower-driven device with bi-directional input and constant directional rotation output
OwnerTai-Her Yanginventor
Life of this patent
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Abstract
The present invention is related to a manpower driven device being able to do particular bi-directional pedaling to provide constant directional output for driving the loading wheel train, wherein its pedaling direction is selected by the rider according to his/her operating statuses of the muscles and joints, or the same directional outputs of different speed ratios is made further through the different driving directional inputs.
Claims15
A human-powered driving device having a bi-directional input and a constant rotating direction output, comprising:
- a human foot or hand driven input device for receiving a rotary input in either of two directions or a reciprocating rotary input, including (a) a pedal, a crank, and a driving wheel set, or (b) a handle, a handle shaft, and a driving wheel set;
- a constant output direction transmission device for receiving a bi-directional input from the input device and producing a constant direction output having only one rotational direction, wherein the constant output direction transmission device includes transmission components constituted by at least one of a gear set, a friction wheel set, a chain and sprocket section, a belt and pulley section, a transmission crank and wheel set, a fluid transmission unit, and an electromagnetic force actuator, and wherein a speed ratio between an input end and an output end of the constant output direction transmission device is fixed or variable;
- and
- a load connected to receive the output of the constant output direction transmission device.
1 more element
Dependencies are inferred from the claim text.