Electric motor
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United States of America Patent
Stats
-
Dec 1, 1998
Grant Date -
N/A
app pub date -
Mar 31, 1997
filing date -
Apr 4, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A light-weight and small-size electric motor in which linear movement can be obtained without requiring any special movement conversion mechanism. The electric motor includes a rotor (4), a rotary shaft (5, 6, 5a) coupled to the rotor (4), and a screw mechanism (7) for Supporting the rotary shaft (5, 6, 5a), the screw mechanism (7) being configured such that the rotor (4) is moved in an axial direction of the rotary shaft (5, 6, 5a) by movement of the rotary shaft (5, 6, 5a) within the screw mechanism (7) upon rotation of the rotor (4).
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