Electric steering lock system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jan 13, 2009
Grant Date -
May 8, 2008
app pub date -
Oct 19, 2007
filing date -
Nov 8, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
An electric steering lock system includes a planetary gear mechanism provided between a rotation member and an electric motor which operate to slide a locking member. The planetary gear mechanism includes: a first sun gear coupled to the electric motor in a relatively non-rotatable manner; a ring gear fixed to a casing and having inner teeth; first planetary gears carried on a first carrier and meshed with the first sun gear and the inner teeth; a second sun gear coupled to the first carrier in a relatively non-rotatable manner; a second sun gear which is carried on a second carrier connected to the rotation member in a relatively non-rotatable manner and which is meshed with the second sun gear and the inner teeth. A shaft has opposite ends coaxially coupled to the first sun gear and the rotation member respectively in a relatively rotatable manner. The first carrier and the second sun gear are supported on the shaft in a relatively rotatable manner. Thus, the planetary gear mechanism can conduct two-staged deceleration while avoiding an increase in the number of components and the size of the planetary gear mechanism.
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