公开(公告)号：US20210039231A1

公开(公告)日：2021-02-11

申请号：US16935758

申请日：2020-07-22

Applicant: MAKITA CORPORATION

Inventor： Yuta ARAKI ,  Motohiro OMURA ,  Akira ITO

IPC: B25B21/00 ,  B25B23/147 ,  B25F5/00

Abstract: A driver-drill (1) includes: a controller (32), which stops rotation of a brushless motor (9) when a torque applied to a spindle (26) reaches a prescribed clutch-actuation torque; and a dial (65), which is capable of specifying, to the controller (32), the setting of the prescribed clutch-actuation torque within a prescribed high-low range of values. In the controller (32), a relationship between clutch-actuation torques and each value in the high-low range is set such that, in a first range in which the values are low, changes in the clutch-actuation torques are the same in the low-speed mode and in the high-speed mode and such that, in a second range outside of the first range, the clutch-actuation torques in the low-speed mode are higher than in the high-speed mode.

公开(公告)号：US20200223038A1

公开(公告)日：2020-07-16

申请号：US16722595

申请日：2019-12-20

Applicant: MAKITA CORPORATION

Inventor： Yuta ARAKI ,  Akira ITO

IPC: B25B23/147 ,  B25B21/02 ,  B25B21/00 ,  B25D16/00

Abstract: A power tool, such as a hammer driver-drill (1), includes: a motor (8); a motor housing (7A) that holds the motor (8); a grip housing (7B) connected to the motor housing (7A); a battery mount housing or enlarged-part housing (7C) connected to the grip housing (7B); and a dial (24) that is provided in the enlarged-part housing (7C) such that it is rotatable about a dial shaft (29). A threshold for stopping the motor (8) is settable by rotating the dial (24).