公开(公告)号：US09837877B2

公开(公告)日：2017-12-05

申请号：US14696612

申请日：2015-04-27

Applicant: MAKITA CORPORATION

Inventor： Yusuke Hirata

IPC: H02K11/02 ,  H02K7/14 ,  H02K23/66 ,  B25F5/02

CPC classification number: H02K11/02 ,  B25F5/02 ,  H02K7/145 ,  H02K23/66

Abstract: In an electric power tool, a stator of a motor is housed in a grip and the stator is located coaxial to the grip. An electric wire for the motor is passed through a ferrite core. Further, the ferrite core is located inside an outer peripheral surface of the stator in a radial direction.

公开(公告)号：US09776338B2

公开(公告)日：2017-10-03

申请号：US14164128

申请日：2014-01-24

Applicant: MAKITA CORPORATION

Inventor： Kenji Abe ,  Yusuke Hirata ,  Tatsuya Nagahama

IPC: B26B7/00 ,  B27B19/14 ,  B27B9/04 ,  B26D7/06 ,  B26F3/00 ,  B27B5/38 ,  B23Q11/12 ,  H02K9/06 ,  H02K7/106 ,  H02K7/14 ,  B25F5/00

CPC classification number: B27B5/38 ,  B23Q11/126 ,  B25F5/001 ,  B25F5/008 ,  H02K7/106 ,  H02K7/145 ,  H02K9/06 ,  H02K11/0094

Abstract: A power tool, for example, a portable circular saw, includes a fan, a motor configured to rotate the fan, an output part or shaft driven by the motor, a motor housing that houses the motor, a grip housing connected to the motor housing, a trigger associated with the grip housing, and a brake member configured to brake a rotation of the motor, the brake member being mounted inside the grip housing. The brake member may be a resistive element of a rheostatic braking system. The housing and fan are configured such that cooling air is directed to cool the brake member.