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US 8,475,313 B2Granted
Bicycle with output in constant rotating direction and having internal rocker arm epicycle wheel set
OwnerTai-Her Yanginventor
Life of this patent
Estimating the term…
Abstract
The present invention is applied to pedal vehicles, or mixture of electric and pedal vehicles, or combination of electric and pedal auxiliary vehicles, especially to a bicycle capable of being pedaled bidirectionally and driven to move in unidirectional.
Claims7
A bicycle having a bi-directional human input device (11) and an internal rocker arm epicycle gear set (500) with a constant direction output (13) for driving a load wheel set (15), wherein:
- the human input device (11) includes a pedal, crank, and driving wheel set arranged to be selectively driven by forward, reverse, and reciprocating movements of a foot, or a handle, hand shank and driving wheel set arranged to be selectively driven by forward, reverse, and reciprocating movements of a hand, and to convert the forward, reverse, and reciprocating movements of the foot or hand into a bi-directional forward, reverse, and reciprocally rotating input to the epicycle gear set (500);
- the load wheel set (15) is directly driven by the constant direction output (13) of the epicycle gear set (500) to propel the bicycle;
- the epicycle gear set (500) is situated in a shell fastened to a machine body (600) of the bicycle and includes an inner bevel wheel (402) mounted to the shell, an annular outer bevel wheel (404) installed on a cylindrical output shaft (3000), and at least one epicyclic wheel (403) rotatably mounted on an epicyclic gear shaft (401) through an epicyclic gear shaft bearing (201), said epicyclic gear shaft (401) being combined with an epicyclic gear support arm annular shelf (400) of an internal rocker arm, the at least one epicyclic gear support arm annular shelf (400) being rotatably coupled with an input shaft (2000) through a first one-way transmission (303) and the at least one epicyclic wheel (403) being rotatably coupled with the inner bevel wheel (402) and the outer bevel wheel (404), wherein speed ratios between the inner bevel wheel (402), outer bevel wheel (404), and epicyclic wheel (403) have one of the following arrangements:
- (i) the inner and outer bevel wheels (402,404) rotate at the same speed and the epicyclic wheel (403) rotates at a same or different speed that the inner and outer bevel wheels (402,404);
- (ii) the inner and outer bevel wheels (402,404) rotate at different speeds, the inner bevel wheel (402) rotates at a same or different speed than the epicyclic wheel (403), and the outer bevel wheel (404) rotates at a same or different speed than the epicyclic wheel (403);
- a first end of the input shaft (2000) receives the bi-directional forward, reverse, and reciprocating input from the human input device (11) and is installed at one side of the shell through a first bearing (101)j;
- a second end of the input shaft (2000) extends into an interior of the cylindrical output shaft (3000), the second end of the input shaft (2000) being rotatably coupled with the cylindrical output shaft (3000) through a second one-way transmission (302) and a second bearing (102);
- the cylindrical output shaft (3000) being rotatably mounted to the shell via a third bearing (103);
- and
- the epicyclic gear set (500) has the following input/output functions depending on whether the input from the human input device (11) drives the input shaft (2000) in a forward or reverse direction:
- when the input shaft (2000) is driven in a forward direction, the cylindrical output shaft (3000) is driven to rotate in a constant output direction by the input shaft (2000) through the second one-way transmission (302) while the first one-way transmission (303) and epicyclic gear support arm annular shelf (400) are in an idle state;
- and
- when the input shaft (2000) is driven in a reverse direction, the cylindrical output shaft (3000) is driven to rotate in the constant output direction through the first one-way transmission (303), the epicyclic gear support arm annular shelf (400), the epicyclic wheel (403), and the outer bevel wheel (404) while the second one-way transmission (302) is in an idle state.
10 more elements
Dependencies are inferred from the claim text.