| 摘要 |
PROBLEM TO BE SOLVED: To provide a power tool capable of improving cooling performance while preventing weight and size from increasing. SOLUTION: This tool includes an electric motor which is a driving power source, and a housing having a body part shell 4G which houses a motor fan to be driven by rotational force of the electric motor and a grip part shell which is protruded from the body part shell in the crossing direction. Thin parts 20 are respectively formed at middle parts in a circumferential direction of divided bodies 6L, 6R in the body part shell 4G to facilitate radiation of heat generated at the electric motor housed in the body part shell 4G, a deceleration part and a driving part to the outside from the thin parts 20. COPYRIGHT: (C)2009,JPO&INPIT
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