| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electric power tool having a cooling structure which has an excellent cooling effect for a brushless motor. <P>SOLUTION: An electric power tool includes: protruding parts 23 which protrude from an inner periphery part of a shell housing part 50a to an outer peripheral part of a stator 12, holds the outer peripheral part of the stator, and includes a first protruding part having a first width and multiple second protruding parts having a second width smaller than the first width; and air passages 19 formed between the second protruding parts and circulating a gas taken from an intake port 17 into the shell housing part by a cooling fan 15. <P>COPYRIGHT: (C)2013,JPO&INPIT |
