Electrical tool
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United States of America Patent
Stats
-
Apr 8, 2008
Grant Date -
Nov 9, 2006
app pub date -
Apr 11, 2006
filing date -
Apr 13, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In the portable electrical circular saw (electrical tool) in which a commutator motor (permanent magnet motor) is mounted in a motor case (housing) which is integrally formed in a tube shape, the commutator motor includes a stator fixed to an inner circumferential surface of the motor case and a rotor which is rotatably disposed in the stator, and a plate having a plurality of protrusions is disposed on at least one of the both axial ends of a rotor core of the rotor, an outer diameter of at least two protrusions of the plate is larger than an outer diameter of the rotor core and smaller than an inner diameter of the stator.
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Cited Art Landscape
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