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Title:
ELECTRIC POWER TOOL
Document Type and Number:
WIPO Patent Application WO/2017/208709
Kind Code:
A1
Abstract:
In order to provide an electric power tool having good operability pertaining to switching between forward rotation and reverse rotation of a motor, the electric power tool according to the present invention is provided with a motor, a control unit for controlling driving of the motor, a trigger switch (7) whereby a user switches between driving and stopping of the motor, and a forward/reverse switching switch (8) whereby the user switches between forward rotation and reverse rotation of the motor, the control unit drives the motor in reverse after reducing the effective value of the voltage applied to the motor or the speed of the motor when an operation to switch the forward/reverse switching switch (8) to reverse rotation is performed when the motor is being driven in forward rotation.

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Inventors:
YOSHINARI Takuya (1060, Taked, Hitachinaka-City Ibaraki 02, 〒3128502, JP)
TADOKORO Naoki (1060, Taked, Hitachinaka-City Ibaraki 02, 〒3128502, JP)
MASHIKO Hironori (1060, Taked, Hitachinaka-City Ibaraki 02, 〒3128502, JP)
SATOU Shinichirou (1060, Taked, Hitachinaka-City Ibaraki 02, 〒3128502, JP)
Application Number:
JP2017/016968
Publication Date:
December 07, 2017
Filing Date:
April 28, 2017
Export Citation:
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Assignee:
HITACHI KOKI CO., LTD. (15-1, Konan 2-chome Minato-k, Tokyo 20, 〒1086020, JP)
International Classes:
B25F5/00; B25B21/00
Foreign References:
JP2000117649A2000-04-25
JP2008110443A2008-05-15
JP2001088049A2001-04-03
JP2015160284A2015-09-07
JP2002154073A2002-05-28
JP2015123540A2015-07-06
JP2006025825A2006-02-02
JP2010173011A2010-08-12
JP2004130403A2004-04-30
JP2015089611A2015-05-11
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