Title:
ELECTRIC POWER TOOL
Document Type and Number:
Japanese Patent JP2015027706
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an electric power tool capable of making working efficiency proper by reducing labor required for switching of an operation mode in comparison with a conventional type.SOLUTION: An electric power tool has a plurality of operation modes different in the number of revolutions within at least a predetermined load range. When a mode selector switch 16 is pushed during the drive of a brushless motor 9, a control part 27 checks whether or not a load current is less than a threshold. When the load current is less than the threshold, the brushless motor 9 is driven by switching the operation mode.
Inventors:
YOSHIDA KENICHIRO
ONOSE AKIRA
KURAGANO SHINJI
NENAI TAKUYA
ONOSE AKIRA
KURAGANO SHINJI
NENAI TAKUYA
Application Number:
JP2013157728A
Publication Date:
February 12, 2015
Filing Date:
July 30, 2013
Export Citation:
Assignee:
HITACHI KOKI KK
International Classes:
B25F5/00
Domestic Patent References:
| JP2012139752A | 2012-07-26 | |||
| JP2005144564A | 2005-06-09 | |||
| JP2003159669A | 2003-06-03 | |||
| JP2002160180A | 2002-06-04 |
Foreign References:
| WO2013161118A1 | 2013-10-31 |
Attorney, Agent or Firm:
Takashi Murai
Hiromi Murai
Hiromi Murai