Title:
POWER TOOL, METHOD FOR CONTROLLING SAME, AND CONTROL PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/008666
Kind Code:
A1
Abstract:
A power tool (10) comprises a motor (16), a trigger switch (12), a switching circuit (gate circuit (13) and FET array (14)), and a control unit (20). The trigger switch (12) sets the speed of the motor (16) in accordance with a manipulation amount. The switching circuit has a plurality of switching elements (14a) and supplies electric power to the motor (16). The control unit (20) controls the switching circuit so that the motor is rotationally driven on the basis of the speed set by the trigger switch (12), and has a trial run mode for estimating an operation mode. The operation mode is estimated on the basis of a characteristic value of the motor (16) as acquired in the trial run mode.
Inventors:
KAWAMOTO RYUJI (JP)
IBUKI HIROYUKI (JP)
SUGIURA MITSUNORI (JP)
IBUKI HIROYUKI (JP)
SUGIURA MITSUNORI (JP)
Application Number:
PCT/JP2019/001789
Publication Date:
January 09, 2020
Filing Date:
January 22, 2019
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
B25F5/00; B25B23/14; H02P6/00; H02P29/40
Foreign References:
| JP2015150671A | 2015-08-24 | |||
| JP2013233637A | 2013-11-21 | |||
| JPH0319778A | 1991-01-28 | |||
| JP2010247326A | 2010-11-04 | |||
| JP2013516335A | 2013-05-13 | |||
| JP2009113121A | 2009-05-28 | |||
| JP2016005866A | 2016-01-14 | |||
| JP2004287821A | 2004-10-14 | |||
| JP2013022681A | 2013-02-04 |
Attorney, Agent or Firm:
MOTOYAMA, Masafumi (JP)
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