公开(公告)号：US11707776B2

公开(公告)日：2023-07-25

申请号：US17567190

申请日：2022-01-03

Applicant: MAKITA CORPORATION

Inventor： Hiroki Ikuta ,  Yosuke Naoi

IPC: B21J15/26 ,  B21J15/28 ,  B21J15/10 ,  F16H3/00 ,  F16H1/46 ,  B25F5/00 ,  B21J15/02 ,  B21J15/04

CPC classification number: B21J15/26 ,  B21J15/105 ,  B21J15/28 ,  B25F5/001 ,  F16H1/46 ,  F16H3/005 ,  B21J15/022 ,  B21J15/043

Abstract: A power tool includes a motor and a gear speed reducer. The motor has a motor shaft that is rotatable in a normal direction and in a reverse direction. The gear speed reducer is operably coupled to the motor shaft. The gear speed reducer is configured such that a reduction ratio of the gear speed reducer is changed in response to a change of a rotation direction of the motor shaft.

公开(公告)号：US10328506B2

公开(公告)日：2019-06-25

申请号：US15625369

申请日：2017-06-16

Applicant: MAKITA CORPORATION

Inventor： Yosuke Naoi ,  Yasushi Ogura

IPC: B23D49/16 ,  B23D51/16 ,  B23D51/02

Abstract: A reciprocating saw serving as reciprocating tool is equipped with a motor, a drive transmission mechanism that converts rotation of the motor into reciprocating motion, a rod that is connected to the drive transmission mechanism and that engages in reciprocating motion, and an upper roller and a lower roller that are capable of rolling and that have depressed portions that are capable of coming in contact with the rod, wherein the cross-section of the rod has no corners, and the depressed portions of the upper roller and the lower roller have hourglass-like profiles.

公开(公告)号：US10569393B2

公开(公告)日：2020-02-25

申请号：US15891696

申请日：2018-02-08

Applicant: MAKITA CORPORATION

Inventor： Yosuke Naoi ,  Takashi Nakane ,  Hiroki Ikuta

IPC: B25B21/00 ,  F16D3/16 ,  F16H1/28 ,  F16H57/08

Abstract: An attachment includes a planetary reducer, a reaction force receiving member, and a universal joint. The planetary reducer has a first output shaft and a second output shaft connectable to a socket. The reaction force receiving member is connected to the first output shaft and has an arm part for contact with an external contact object. The universal joint has an input-side end part connectable to a final output shaft of a fastening tool and an output-side end part connected to the planetary reducer. The reaction force receiving member is configured to rotate integrally with the first output shaft in a direction opposite to the second output shaft by a reaction force caused by rotation of the socket. The universal joint is configured to transmit the torque inputted from the final output shaft via the input-side end part, to the planetary reducer via the output-side end part.