公开(公告)号：US20160250740A1

公开(公告)日：2016-09-01

申请号：US15148339

申请日：2016-05-06

Applicant: MAKITA CORPORATION

Inventor： Hiroki IKUTA ,  Ken YAMAUCHI ,  Takamasa HANAI ,  Masao MIWA ,  Tomohiro UKAI ,  Shusaku WAKATSUKI ,  Akihiro ITO

IPC: B25D17/22 ,  B23Q11/00

CPC classification number: B25D17/22 ,  B23Q11/0046 ,  B23Q11/0071 ,  B25D17/20 ,  B25D2217/0057 ,  B25F5/026 ,  Y02P70/171

Abstract: A dust collection device, that collects dust particles generated by an impact tool, has a feature that enables the attachment of the device to the impact tool, which is not provided with an attachment section for the device. The dust collection device has a tool body and an auxiliary handle, attached removably to the tool body, and is attached to an electric hammer that, in the lengthwise direction, linearly operates a tool bit mounted to the tip region of the tool body, and collects dust generated by the electric hammer. The dust collection device has: a dust collection unit that has a dust intake port at the tip; a dust collection hose, connected to the dust collection unit, for transferring dust to the downstream side; and a hose-holding unit that holds the dust collection hose. The hose-holding unit can be attached to and removed from the auxiliary handle.

公开(公告)号：US20170125192A1

公开(公告)日：2017-05-04

申请号：US15264870

申请日：2016-09-14

Applicant: MAKITA CORPORATION

Inventor： Takamasa HANAI ,  Hikaru SUNABE ,  Satoshi NINAGAWA ,  Shin NAKAMURA ,  Masatoshi NAKAHAMA ,  Kazusa FUKUDA ,  Kenichi MIYATA

IPC: H01H25/00 ,  H01H21/00 ,  H01H9/06 ,  H01H9/20 ,  B24B23/02 ,  B25F5/02

CPC classification number: H01H25/00 ,  B24B23/028 ,  B25F5/00 ,  B25F5/02 ,  H01H9/06 ,  H01H9/20 ,  H01H21/00 ,  H01H2001/508

Abstract: A power tool (1) includes an electric motor (2) as a drive source and a start switch (20; 61) that starts the electric motor (2) and is lockable in an ON position in a lock-ON state. An electromagnetic actuator (30; 40; 50; 60) pushes out or pulls in an actuation pin (30a; 40a; 50a; 60a) with respect to a body of the electromagnetic actuator (30; 40; 50; 60) in response to cutting off of a supply of electrical current to the power tool (1). The pushed-out or pulled-in actuation pin, directly or indirectly, disengages the start switch (20; 61) from the lock-ON state and/or prevents the start switch (20; 61) from being shifted into the lock-ON state.