公开(公告)号：US11446780B2

公开(公告)日：2022-09-20

申请号：US17060178

申请日：2020-10-01

Applicant: MAKITA CORPORATION

Inventor： Keita Mori ,  Kiyonobu Yoshikane

IPC: B23Q11/00 ,  B25D16/00 ,  B25D17/20 ,  B25D17/04

Abstract: A dust collector includes a body configured to be removably attached to a lower side of a tool body of a drilling tool, a dust storing part to be disposed on a lower side of the body, a sliding part having a suction port and held by the body so as to be slidable in a front-rear direction, a dust transfer passage extending within the sliding part and connecting the suction port and an inlet of the dust storing part, and a tool connection passage disposed within an internal space of the body and configured to connect an outlet of the dust storing part and an inlet of the tool body of the drilling tool. The dust storing part includes the inlet, a filter, a dust storing space and the outlet. The filter is disposed forward of the inlet of the dust storing part.

公开(公告)号：US11161213B2

公开(公告)日：2021-11-02

申请号：US16784485

申请日：2020-02-07

Applicant: MAKITA CORPORATION

Inventor： Kiyonobu Yoshikane ,  Keita Mori ,  Yoshitaka Machida ,  Yu Kobayashi

IPC: B23Q11/00 ,  B23Q17/00 ,  B25F5/02

Abstract: Appropriate control is performed in accordance with the state of a power tool and/or a dust collection attachment. A dust collection system for a power tool includes a hammer drill to hold a bit, a dust collection attachment connected to the hammer drill, and a dust collection controller that controls the operation of the hammer drill and/or the dust collection attachment in accordance with the specifications of the hammer drill and/or the dust collection attachment.

公开(公告)号：US11052525B2

公开(公告)日：2021-07-06

申请号：US15421118

申请日：2017-01-31

Applicant: MAKITA CORPORATION

Inventor： Masanori Furusawa ,  Keita Mori ,  Yoshiro Tada

IPC: B25D16/00 ,  B25D11/06

Abstract: A hammer drill includes a housing, a tool holder, a hammering member, a gear, and a conversion member. The gear is switched to a first state where a rotation of the intermediate shaft is transmitted and a second state where the rotation of the intermediate shaft is not transmitted, and a mode switching member is configured to perform a switching operation of the state of the gear from an outside of the housing. The switching of the state of the gear by the mode switching member provides at least two operation modes of a hammer drill mode where the gear integrally rotates with the intermediate shaft to generate the rotation and a reciprocation of the hammering member on the tool holder and a hammer mode where the gear is separated from the rotation of the intermediate shaft to generate only the reciprocation of the hammering member.