Title:
電動工具
Document Type and Number:
Japanese Patent JP5799221
Kind Code:
B2
Abstract:
It is provided an electric tool capable of securing safety by forcibly deactivating a motor when a motor current exceeds a threshold while suppressing a deterioration of the work efficiency. The electric tool of the invention includes a motor 3, a main switch 1 for switching ON or OFF of electricity supply to the motor 3, an output adjustment switch 2 for adjusting a rotational output of the motor 3, and a control means 6 configured to forcibly deactivate the motor 3 when a detection result by a current detection means exceeds a predetermined threshold. The control means cancels a forcibly deactivation state: when the main switch 1 is turned off under the forcibly deactivation state; or when the output adjustment switch 2 is manipulated under the forcibly deactivation state.
Inventors:
Norihiro Iwamura
Motoharu Muto
Motoharu Muto
Application Number:
JP2011063659A
Publication Date:
October 21, 2015
Filing Date:
March 23, 2011
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
B25F5/00
Domestic Patent References:
| JP2001252602A | ||||
| JP63103623A | ||||
| JP7099721A |
Foreign References:
| US20070069672 | ||||
| WO2007067352A1 |
Attorney, Agent or Firm:
Keisei Nishikawa