The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 18, 2019

Filed:

Oct. 16, 2015
Applicant:

Makita Corporation, Anjo-shi, Aichi, JP;

Inventors:

Goshi Ishikawa, Anjo, JP;

Ryunosuke Kumagai, Anjo, JP;

Takuya Kusakawa, Anjo, JP;

Yoshitaka Ichikawa, Anjo, JP;

Tokuo Hirabayashi, Anjo, JP;

Assignee:

MAKITA CORPORATION, Anjo-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B 21/00 (2006.01); B25B 21/02 (2006.01); B25B 23/18 (2006.01);
U.S. Cl.
CPC ...
B25B 21/008 (2013.01); B25B 21/02 (2013.01); B25B 21/026 (2013.01); B25B 23/18 (2013.01);
Abstract

An electric power tool in one aspect of the present disclosure comprises a motor, a hitting mechanism, a hitting detector, and a control unit. The control unit is configured to set a control amount of the motor so that the motor rotates at a lower speed than a speed in the target rotation state during an initial driving period, and switch the control amount to a final control amount corresponding to the target rotation state when the initial driving period elapses. The initial driving period is a period from when generation of a hitting force is detected by the hitting detector until a predetermined first time period elapses, after the motor is started driven.


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