Title:
電動工具
Document Type and Number:
Japanese Patent JP5831837
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an electric power tool that can stably perform works of positioning and biting-in.SOLUTION: The electric power tool 1 includes: a motor 5; a trigger switch 3 that is manually operable; and a computing part 78 (inverter circuit 8) that feeds such a driving voltage to the motor 5 that a revolution number N of the motor 5 is controlled to be constant while an operation degree D of the trigger switch 3 is X or less.
Inventors:
Kazutaka Iwata
Toshiaki Koizumi
Toshiaki Koizumi
Application Number:
JP2011019893A
Publication Date:
December 09, 2015
Filing Date:
February 01, 2011
Export Citation:
Assignee:
Hitachi Koki Co., Ltd.
International Classes:
B25F5/00; B23B45/02; B23B47/06
Domestic Patent References:
| JP2008296323A | ||||
| JP3019778A | ||||
| JP2006221908A | ||||
| JP2008006548A | ||||
| JP2000024960A | ||||
| JP2010173053A | ||||
| JP9314476A |
Attorney, Agent or Firm:
Kazuhiro Kitazawa
Shin Koizumi
Akiko Ichikawa
Shin Koizumi
Akiko Ichikawa