公开(公告)号：US11780060B2

公开(公告)日：2023-10-10

申请号：US16928466

申请日：2020-07-14

Applicant: MAKITA CORPORATION

Inventor： Kihiro Kusumoto ,  Tokuo Hirabayashi ,  Yuya Sano ,  Koji Kasugai

IPC: B25B21/02 ,  B25F5/02

CPC classification number: B25B21/02 ,  B25F5/02

Abstract: An anvil receives less stress around a rectangular prism and has higher durability. An impact wrench includes a motor, a hammer rotatable by the motor, a body accommodating the motor and the hammer, and an anvil protruding frontward from the body and to be struck in a rotation direction by the hammer. The anvil includes a blade to be in contact with the hammer, a cylinder located frontward from the blade, a rectangular prism located frontward from the cylinder, at least one chamfered surface each at an edge of the rectangular prism, and a concave on a rear end of the at least one chamfered surface.