Bicycle transmission using variable speed motor and planetary gear mechanism
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United States of America Patent
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-
Dec 13, 2022
Grant Date -
Dec 24, 2020
app pub date -
Sep 6, 2020
filing date -
Mar 8, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A bicycle transmission using a variable speed motor and a planetary gear mechanism includes: a first input rotary shaft (10) rotatably connected to a main power source (11); a second input rotary shaft (20) receiving a motor rotational power from a variable speed motor (21); a planetary gear mechanism (30) receiving first and second rotational power respectively from the first input rotary shaft (10) and the second input rotary shaft (20), wherein the planetary gear mechanism (30) includes a ring gear (33), a carrier (31), a plurality of planet gears (32), and a sun gear (34); an output shaft (40) receiving a third rotational power from the planetary gear mechanism (30); and a control unit (50) controlling the variable speed motor (21) and controlling a rotational direction and speed of the second input rotary shaft (20).
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