The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2024
Filed:
Oct. 11, 2021
Panasonic Corporation, Osaka, JP;
PANASONIC HOLDINGS CORPORATION, Osaka, JP;
Abstract
An electric tool includes: a motor; an attachment unit to receive a tip tool attached thereto; a drive control unit to control the motor; a number of revolutions detection unit; and a torque detection unit. The number of revolutions detection unit detects a number of revolutions of a first detection target shaft. The torque detection unit detects a load torque of a second detection target shaft. The drive control unit detects, based on the number of revolutions and load torque detected, an unstable behavior of at least one of the tip tool, the first detection target shaft, or the second detection target shaft and either decelerates, or stops running, the motor when detecting the unstable behavior.