公开(公告)号：US20210053175A1

公开(公告)日：2021-02-25

申请号：US16981247

申请日：2019-03-27

Applicant: MAKITA CORPORATION

Inventor： Ryosuke OTANI ,  Junya ISHIKAWA ,  Takafumi KOTSUJI ,  Satoshi NINAGAWA ,  Ken GOTO ,  Yu ETO

IPC: B24B23/02 ,  B24B55/00

Abstract: A hand-held tool, such as a disc grinder, is used to perform work at a high work site, a countermeasure is taken to prevent the hand-held tool from falling by using a suspension tool, such as a tether strap. If a coupling part that couples the suspension tool to the hand-held tool is damaged, this fact is notified to a user. Thereby, an original function of the suspension tool can be reliably performed. If a large impact is applied to a coupling member via a suspension tool, the coupling member is displaced to a second position, due to the deformation of a first position retaining member. A conductive portion disengages from contacts to cause a power circuit to be shut off, thereby prohibiting a main body part from being activated.

公开(公告)号：US20190299387A1

公开(公告)日：2019-10-03

申请号：US16256516

申请日：2019-01-24

Applicant: MAKITA CORPORATION

Inventor： Takafumi KOTSUJI ,  Akira MIZUTANI

IPC: B25F5/02 ,  B25D16/00 ,  B25B21/02

Abstract: A power tool (1), such as a multi-tool, includes: a motor (21) extending in a front-rear direction; a motor housing (2) that houses the motor (21); a head housing (7) held forward of the motor housing (2); and an output shaft (60) protruding downward from the head housing (7). The head housing (7) may be made of a resin. In addition or in the alternative, the head housing (7) includes a lower-head housing case (4) screw fastened to an upper-head housing cover (5). In addition or in the alternative, the motor housing has a two-halved structure in which two half housings (2a, 2b) are screw fastened together.