Actuator unit
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United States of America Patent
Stats
-
Mar 2, 2004
Grant Date -
Jun 21, 2001
app pub date -
Dec 21, 2000
filing date -
Dec 21, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
An actuator unit comprises a worm wheel rotated by a motor and having an output gear, a rotational lever having a toothed portion engaged with the output gear. The output gear has one first motor side gear tooth, two second motor side gear teeth, and two third motor side gear teeth which are shifted in three stages in an axial direction of a wheel shaft. The toothed portion has two first lever side gear teeth engageable only with the first motor side gear tooth, one second lever side gear tooth engageable only with the second motor side gear teeth, and one third lever side gear tooth engageable only with the third motor side gear teeth. The toothed portion does not rotate the output gear when the rotational lever is rotated while the worm wheel is located in a neutral position.
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