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    • 21. 发明专利
    • Work tool
    • JP5357897B2
    • 2013-12-04
    • JP2010542913
    • 2009-10-19
    • 株式会社マキタ
    • 正規 古澤喜洋 糟谷一 竹内
    • B25D17/18
    • B25D17/04B23Q11/0046B25D2211/003B25F5/003B25F5/026
    • A technique which contributes to improvement of usability is provided in a power tool having a dust suction device for sucking dust generated during operation. The power tool performs a predetermined operation by using a tool bit 119 and has a grip part 181 and a dust suction device 250. The dust suction device 250 has a dust suction part 251 that extends in an axial direction of the tool bit 119 and sucks and collects dust generated during operation at a tip of the tool bit, and the dust suction part 251 can be moved between a first position in which the dust suction part covers a bit tip 119a of the tool bit 119 and a second position in which the bit tip 119a is exposed. The dust suction device 250 further has an operation mode switching mechanism 253 that is capable of switching between a first operation mode in which the dust suction part is allowed to move between the first and second positions and a second operation mode in which the dust suction part is locked in the second position, and the operation mode switching mechanism 253 is provided in a region of the grip part 181 or its vicinity such that it can be operated with a user's hand holding the grip part.