Electric actuator
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United States of America Patent
Stats
-
Jan 9, 2007
Grant Date -
Dec 25, 2003
app pub date -
Jun 23, 2003
filing date -
Jun 24, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electric actuator comprises a gear mechanism which transmits the rotary driving force of a rotary driving source, and a ball spline mechanism which includes a ball spline shaft provided movably back and forth from a connecting block to the outside and which converts a rotary motion transmitted by the gear mechanism into a rectilinear motion. The electric actuator has a ball spline nut which is externally fitted to the ball spline shaft to be meshed with the gear mechanism and which is integrally formed with a gear section having a plurality of teeth arranged circumferentially about the gear section.
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