Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Naoki Tadokoro0
Shigeru Takahashi0
Takuma Saito0
Date of Patent
May 18, 2010
0Patent Application Number
116212960
Date Filed
January 9, 2007
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A power tool 1 includes a cylindrical-shaped yoke 31, magnets 32 provided in the interior of the yoke 31, an armature 41 disposed rotatably in the interior of the yoke 31, a cooling fan 7 rotatably secured to the armature 41, a fan guide 8 disposed on the periphery of the cooling fan 7, and a cylindrical-shaped housing 2 for storing the yoke 31 therein. The fan guide 8 is contacted with the axial-direction one end face of the yoke 31, and the fan guide 8 is engaged with the yoke 31 in the rotation direction thereof.
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