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Patent Searching and Data


Title:
POWER TOOL
Document Type and Number:
Japanese Patent JP2018108676
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power tool capable of improving visibility of a blade section of a rotary blade during rotation in a cutting work and performing the highly accurate cutting work.SOLUTION: A power tool includes: a motor having a rotary shaft; an output shaft section on which a circular saw blade having a plurality of blade sections which are rotated by rotation of the rotary shaft so as to cut a material to be cut can be mounted; an illumination section which is capable of projecting light on the plurality of blade sections of the circular saw blade in a mounted state on the output shaft section; and a control section which controls detection 403 of the number of rotation of the rotary shaft, detection of blade intervals of the plurality of the blade sections and turning-on/off of the illumination section. The control section is configured to perform strobe control (repetition of 403 to 406) for periodically turning on/off the illumination section on the basis of the number of rotation of the rotary shaft and the blade intervals of the plurality of blade sections.SELECTED DRAWING: Figure 17

Inventors:
ISHIKAWA YUKI
NISHIKAWA TOMOMASA
YOSHIDA KENICHIRO
Application Number:
JP2016256902A
Publication Date:
July 12, 2018
Filing Date:
December 28, 2016
Export Citation:
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Assignee:
HITACHI KOKI KK
International Classes:
B27B9/00; B23D45/16; B23D47/00; B25F5/00
Domestic Patent References:
JP2008110441A2008-05-15
JP2009083142A2009-04-23
JP2008036803A2008-02-21
JPH03213250A1991-09-18
JP2005066754A2005-03-17
JPH01232206A1989-09-18
Foreign References:
US20130021783A12013-01-24
CN200984733Y2007-12-05
Attorney, Agent or Firm:
Kazuhiro Kitazawa
Shin Koizumi
Akiko Ichikawa
Fukumoto Teppei
Castle castle
Yoshie Kim
Mitsukuni Matsuzaka