SPEED REDUCER HAVING SELF-LOCKING FUNCTION WITHOUT RING GEAR, AND SELF-LOCKING METHOD OF SPEED REDUCER
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United States of America Patent
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Issued Date -
Jan 11, 2024
app pub date -
Sep 20, 2023
filing date -
May 20, 2021
priority date (Note) -
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Abstract
Proposed are a speed reducer having a self-locking function without a ring gear, and a self-locking method of the speed reducer. Particularly, the speed reducer is characterized in that first, second and third planetary gears are supported at different locations on one side of a carrier, which is an input side, so as to be able to rotate and revolve and be disposed in n sets, and when fixing any one of a first sun gear and a second sun gear and switching one remaining sun gear into an input side and rotating the same, speed is not increased due to a self-locking function and a speed increase ratio is zero (a stationary state in which the sun gear used as the input side cannot rotate), thereby resulting in self-locking which is a non-operating state.
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