US 12,070,845 B2
Electronic power tool and electric power tool system
Itarü Murui, Nara (JP); Hiroaki Murakami, Mie (JP); Akiko Honda, Osaka (JP); Masanori Nakamoto, Mie (JP); Mitsumasa Mizuno, Osaka (JP); Takashi Kusagawa, Osaka (JP); and Masahiro Sato, Nara (JP)
Assigned to Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Appl. No. 17/273,705
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Jun. 26, 2019, PCT No. PCT/JP2019/025443
§ 371(c)(1), (2) Date Mar. 4, 2021,
PCT Pub. No. WO2020/049841, PCT Pub. Date Mar. 12, 2020.
Claims priority of application No. 2018-166426 (JP), filed on Sep. 5, 2018.
Prior Publication US 2021/0331305 A1, Oct. 28, 2021
Int. Cl. B25B 23/147 (2006.01); B25F 5/00 (2006.01); G05B 15/02 (2006.01)
CPC B25F 5/00 (2013.01) [G05B 15/02 (2013.01); B25B 23/147 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An electric power tool comprising:
a motor;
an output shaft on which a front-end tool is adapted to be mounted;
a power transmission mechanism that transmits a rotational output of the motor to the output shaft;
a user operation switch for rotating the motor;
a motor control unit that controls rotation of the motor in accordance with an on operation of the user operation switch performed by a user;
a detector that detects physical quantity data which includes at least one of tightening torque data, electric current data, motor revolution data, or vibration data while the motor is being rotated;
a status determination unit that determines whether the electric power tool is in a deteriorated status where the electric power tool does not operate properly, by using the physical quantity data; and
a notification interface that outputs a notification indicating that the electric power tool is in the deteriorated status while the motor is not being rotated,
wherein the notification interface does not output the notification while the motor is being rotated, and the notification interface outputs the notification immediately after the user release the on operation of the user operation switch.